Fix temporary contents DB being left behind after publishing

NB: Go `defer` order execution is reverse to the order `defer` statements
are executed.

So before the change, `Drop()` was called before `Close()`, which was no-op.

Change that to explicit order in single func, print errors if they happen.

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,14 @@
+<!--- Provide a general summary of the issue in the Title above -->
+
+## Detailed Description
+<!--- Provide a detailed description of the change or addition you are proposing -->
+
+## Context
+<!--- Why is this change important to you? How would you use it? -->
+<!--- How can it benefit other users? -->
+
+## Possible Implementation
+<!--- Not obligatory, but suggest an idea for implementing addition or change -->
+
+## Your Environment
+<!--- Include as many relevant details about the environment you experienced the bug in -->

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,22 @@
+Fixes #
+
+## Requirements
+
+All new code should be covered with tests, documentation should be updated. CI should pass.
+
+## Description of the Change
+
+<!--
+
+Why this change is important?
+
+-->
+
+## Checklist
+
+- [ ] unit-test added (if change is algorithm)
+- [ ] functional test added/updated (if change is functional)
+- [ ] man page updated (if applicable)
+- [ ] bash completion updated (if applicable)
+- [ ] documentation updated
+- [ ] author name in `AUTHORS`

.gitignore

@@ -27,8 +27,10 @@ coverage*.out
 
 *.pyc
 
-_vendor/
+xc-out/
+root/
 
-gen
 man/aptly.1.html
-man/aptly.1.ronn
+man/aptly.1.ronn
+
+.goxc.local.json

.goxc.json

@@ -0,0 +1,46 @@
+{
+	"AppName": "aptly",
+	"ArtifactsDest": "xc-out/",
+	"TasksExclude": [
+		"rmbin",
+		"go-test",
+		"go-vet"
+	],
+    "TasksAppend": [
+		"bintray"
+    ],
+    "TaskSettings": {
+        "deb": {
+            "metadata": {
+                "maintainer": "Andrey Smirnov",
+                "maintainerEmail": "me@smira.ru",
+                "description": "Debian repository management tool"
+            },
+            "metadata-deb": {
+                "License": "MIT",
+                "Homepage": "https://www.aptly.info/",
+                "Recommends": "bzip2, graphviz, xz-utils",
+                "Depends": ""
+            },
+            "other-mapped-files": {
+                "/": "root/"
+            }
+        },
+        "bintray": {
+            "repository": "aptly",
+            "subject": "smira",
+            "package": "aptly",
+            "downloadspage": "bintray.md"
+        }
+    },
+	"ResourcesInclude": "README.rst,LICENSE,AUTHORS,man/aptly.1",
+	"Arch": "386 amd64",
+	"Os": "linux darwin freebsd",
+	"MainDirsExclude": "_man,vendor",
+	"BuildSettings": {
+		"LdFlagsXVars": {
+			"Version": "main.Version"
+		}
+	},
+	"ConfigVersion": "0.9"
+}

.travis.yml

@@ -1,20 +1,47 @@
+sudo: false
+
 language: go
 
 go:
-  - 1.2.1
-  - 1.3
+  - 1.6
+  - 1.7
+  - 1.8
   - tip
 
+addons:
+  apt:
+    packages:
+    - python-virtualenv
+    - graphviz
+
 env:
   global:
     - secure: "YSwtFrMqh4oUvdSQTXBXMHHLWeQgyNEL23ChIZwU0nuDGIcQZ65kipu0PzefedtUbK4ieC065YCUi4UDDh6gPotB/Wu1pnYg3dyQ7rFvhaVYAAUEpajAdXZhlx+7+J8a4FZMeC/kqiahxoRgLbthF9019ouIqhGB9zHKI6/yZwc="
-
+    - secure: "V7OjWrfQ8UbktgT036jYQPb/7GJT3Ol9LObDr8FYlzsQ+F1uj2wLac6ePuxcOS4FwWOJinWGM1h+JiFkbxbyFqfRNJ0jj0O2p93QyDojxFVOn1mXqqvV66KFqAWR2Vzkny/gDvj8LTvdB1cgAIm2FNOkQc6E1BFnyWS2sN9ea5E="
+    - secure: "OxiVNmre2JzUszwPNNilKDgIqtfX2gnRSsVz6nuySB1uO2yQsOQmKWJ9cVYgH2IB5H8eWXKOhexcSE28kz6TPLRuEcU9fnqKY3uEkdwm7rJfz9lf+7C4bJEUdA1OIzJppjnWUiXxD7CEPL1DlnMZM24eDQYqa/4WKACAgkK53gE="
+before_install:
+  - virtualenv env
+  - . env/bin/activate
+  - pip install six packaging appdirs
+  - pip install -U pip setuptools
+  - pip install boto requests requests-unixsocket python-swiftclient
+  - mkdir -p $GOPATH/src/github.com/smira
+  - ln -s $TRAVIS_BUILD_DIR $GOPATH/src/github.com/smira || true
+  - cd $GOPATH/src/github.com/smira/aptly
+  - make version
 install:
   - make prepare
 
-
 script: make travis
 
 matrix:
     allow_failures:
         - go: tip
+
+notifications:
+  webhooks:
+    urls:
+      - "https://webhooks.gitter.im/e/c691da114a41eed6ec45"
+    on_success: change  # options: [always|never|change] default: always
+    on_failure: always  # options: [always|never|change] default: always
+    on_start: false     # default: false

AUTHORS

@@ -3,4 +3,26 @@ List of contributors, in chronological order:
 * Andrey Smirnov (https://github.com/smira)
 * Sebastien Binet (https://github.com/sbinet)
 * Ryan Uber (https://github.com/ryanuber)
-* Simon Aquino (https://github.com/simonaquino)
+* Simon Aquino (https://github.com/queeno)
+* Vincent Batoufflet (https://github.com/vbatoufflet)
+* Ivan Kurnosov (https://github.com/zerkms)
+* Dmitrii Kashin (https://github.com/freehck)
+* Chris Read (https://github.com/cread)
+* Rohan Garg (https://github.com/shadeslayer)
+* Russ Allbery (https://github.com/rra)
+* Sylvain Baubeau (https://github.com/lebauce)
+* Andrea Bernardo Ciddio (https://github.com/bcandrea)
+* Michael Koval (https://github.com/mkoval)
+* Alexander Guy (https://github.com/alexanderguy)
+* Sebastien Badia (https://github.com/sbadia)
+* Szymon Sobik (https://github.com/sobczyk)
+* Paul Krohn (https://github.com/paul-krohn)
+* Vincent Bernat (https://github.com/vincentbernat)
+* x539 (https://github.com/x539)
+* Phil Frost (https://github.com/bitglue)
+* Benoit Foucher (https://github.com/bentoi)
+* Geoffrey Thomas (https://github.com/geofft)
+* Oliver Sauder (https://github.com/sliverc)
+* Harald Sitter (https://github.com/apachelogger)
+* Johannes Layher (https://github.com/jola5)
+* Charles Hsu (https://github.com/charz)

CODE_OF_CONDUCT.md

@@ -0,0 +1,74 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, gender identity and expression, level of experience,
+nationality, personal appearance, race, religion, or sexual identity and
+orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+  address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at [team@aptly.info](mailto:team@aptly.info). All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at [http://contributor-covenant.org/version/1/4][version]
+
+[homepage]: http://contributor-covenant.org
+[version]: http://contributor-covenant.org/version/1/4/

Gomfile

@@ -1,24 +0,0 @@
-gom 'code.google.com/p/go-uuid/uuid', :commit => '5fac954758f5'
-gom 'code.google.com/p/go.crypto/ssh/terminal', :commit => '7aa593ce8cea'
-gom 'code.google.com/p/gographviz', :commit => '454bc64fdfa2'
-gom 'code.google.com/p/mxk/go1/flowcontrol', :commit => '5ff2502e2556'
-gom 'code.google.com/p/snappy-go/snappy', :commit => '12e4b4183793'
-gom 'github.com/cheggaaa/pb', :commit => '74be7a1388046f374ac36e93d46f5d56e856f827'
-gom 'github.com/mitchellh/goamz/s3', :commit => '55f224c07975fddef9d2116600c664e30df3d594'
-gom 'github.com/mkrautz/goar', :commit => '36eb5f3452b1283a211fa35bc00c646fd0db5c4b'
-gom 'github.com/smira/commander', :commit => 'f408b00e68d5d6e21b9f18bd310978dafc604e47'
-gom 'github.com/smira/flag', :commit => '0d0aac2addb39050f45e92c5a6252926096dc841'
-gom 'github.com/syndtr/goleveldb/leveldb', :commit => '9888007'
-gom 'github.com/ugorji/go/codec', :commit => '71c2886f5a673a35f909803f38ece5810165097b'
-gom 'github.com/wsxiaoys/terminal/color', :commit => '5668e431776a7957528361f90ce828266c69ed08'
-
-group :test do
-    gom 'launchpad.net/gocheck'
-end
-
-group :development do
-   gom 'github.com/golang/lint/golint'
-   gom 'github.com/mattn/goveralls'
-   gom 'github.com/axw/gocov/gocov'
-   gom 'code.google.com/p/go.tools/cmd/cover'
-end

LICENSE

@@ -1,4 +1,4 @@
-Copyright 2013-2014 Andrey Smirnov. All rights reserved.
+Copyright 2013-2015 aptly authors. All rights reserved.
 
 MIT License
 

Makefile

@@ -1,83 +1,84 @@
 GOVERSION=$(shell go version | awk '{print $$3;}')
-PACKAGES=database deb files http query s3 utils
-ALL_PACKAGES=aptly cmd console database deb files http query s3 utils
-BINPATH=$(abspath ./_vendor/bin)
-GOM_ENVIRONMENT=-test
+VERSION=$(shell git describe --tags | sed 's@^v@@' | sed 's@-@+@g')
+PACKAGES=context database deb files http query swift s3 utils
 PYTHON?=python
+TESTS?=
+BINPATH?=$(GOPATH)/bin
 
 ifeq ($(GOVERSION), devel)
 TRAVIS_TARGET=coveralls
-GOM_ENVIRONMENT+=-development
 else
 TRAVIS_TARGET=test
 endif
 
-ifeq ($(TRAVIS), true)
-GOM=$(HOME)/gopath/bin/gom
-else
-GOM=gom
-endif
-
 all: test check system-test
 
 prepare:
-	go get -u github.com/mattn/gom
-	$(GOM) $(GOM_ENVIRONMENT) install
+	go get -u github.com/mattn/goveralls
+	go get -u github.com/axw/gocov/gocov
+	go get -u golang.org/x/tools/cmd/cover
+	go get -u github.com/alecthomas/gometalinter
+	gometalinter --install
+
+dev:
+	go get -u github.com/golang/dep/...
+	go get -u github.com/laher/goxc
 
 coverage.out:
 	rm -f coverage.*.out
-	for i in $(PACKAGES); do $(GOM) test -coverprofile=coverage.$$i.out -covermode=count ./$$i; done
+	for i in $(PACKAGES); do go test -coverprofile=coverage.$$i.out -covermode=count ./$$i; done
 	echo "mode: count" > coverage.out
 	grep -v -h "mode: count" coverage.*.out >> coverage.out
 	rm -f coverage.*.out
 
 coverage: coverage.out
-	$(GOM) exec go tool cover -html=coverage.out
+	go tool cover -html=coverage.out
 	rm -f coverage.out
 
 check:
-	$(GOM) exec go tool vet -all=true -shadow=true $(ALL_PACKAGES:%=./%)
-	$(GOM) exec golint $(ALL_PACKAGES:%=./%)
+	gometalinter --vendor --vendored-linters --config=linter.json ./...
 
 install:
-	$(GOM) build -o $(BINPATH)/aptly
+	go install -v -ldflags "-X main.Version=$(VERSION)"
 
 system-test: install
 	if [ ! -e ~/aptly-fixture-db ]; then git clone https://github.com/aptly-dev/aptly-fixture-db.git ~/aptly-fixture-db/; fi
 	if [ ! -e ~/aptly-fixture-pool ]; then git clone https://github.com/aptly-dev/aptly-fixture-pool.git ~/aptly-fixture-pool/; fi
-	PATH=$(BINPATH)/:$(PATH) $(PYTHON) system/run.py --long
+	APTLY_VERSION=$(VERSION) PATH=$(BINPATH)/:$(PATH) $(PYTHON) system/run.py --long $(TESTS)
 
-travis: $(TRAVIS_TARGET) system-test
+travis: $(TRAVIS_TARGET) check system-test
 
 test:
-	$(GOM) test -v ./... -gocheck.v=true
+	go test -v `go list ./... | grep -v vendor/` -gocheck.v=true
 
 coveralls: coverage.out
-	$(GOM) exec $(BINPATH)/goveralls -service travis-ci.org -coverprofile=coverage.out -repotoken=$(COVERALLS_TOKEN)
+	$(BINPATH)/goveralls -service travis-ci.org -coverprofile=coverage.out -repotoken=$(COVERALLS_TOKEN)
 
 mem.png: mem.dat mem.gp
 	gnuplot mem.gp
 	open mem.png
 
-package:
-	rm -rf root/
-	mkdir -p root/usr/bin/ root/usr/share/man/man1/ root/etc/bash_completion.d
-	cp $(BINPATH)/aptly root/usr/bin
-	cp man/aptly.1 root/usr/share/man/man1
-	(cd root/etc/bash_completion.d && wget https://raw.github.com/aptly-dev/aptly-bash-completion/master/aptly)
-	gzip root/usr/share/man/man1/aptly.1
-	fpm -s dir -t deb -n aptly -v $(VERSION) --url=http://www.aptly.info/ --license=MIT --vendor="Andrey Smirnov <me@smira.ru>" \
-	   -f -m "Andrey Smirnov <me@smira.ru>" --description="Debian repository management tool" --deb-recommends bzip2 -C root/ .
-	mv aptly_$(VERSION)_*.deb ~
-
 src-package:
 	rm -rf aptly-$(VERSION)
 	mkdir -p aptly-$(VERSION)/src/github.com/smira/aptly/
 	cd aptly-$(VERSION)/src/github.com/smira/ && git clone https://github.com/smira/aptly && cd aptly && git checkout v$(VERSION)
-	cd aptly-$(VERSION)/src/github.com/smira/aptly && gom -production install
-	cd aptly-$(VERSION)/src/github.com/smira/aptly && find . \( -name .git -o -name .bzr -o -name .hg \) -print | xargs rm -rf
-	rm -rf aptly-$(VERSION)/src/github.com/smira/aptly/_vendor/{pkg,bin}
+	mkdir -p aptly-$(VERSION)/bash_completion.d
+	(cd aptly-$(VERSION)/bash_completion.d && wget https://raw.github.com/aptly-dev/aptly-bash-completion/$(VERSION)/aptly)
 	tar cyf aptly-$(VERSION)-src.tar.bz2 aptly-$(VERSION)
 	rm -rf aptly-$(VERSION)
 
-.PHONY: coverage.out
+goxc:
+	rm -rf root/
+	mkdir -p root/usr/share/man/man1/ root/etc/bash_completion.d
+	cp man/aptly.1 root/usr/share/man/man1
+	(cd root/etc/bash_completion.d && wget https://raw.github.com/aptly-dev/aptly-bash-completion/master/aptly)
+	gzip root/usr/share/man/man1/aptly.1
+	goxc -pv=$(VERSION) -max-processors=4 $(GOXC_OPTS)
+
+man:
+	make -C man
+
+version:
+	@echo $(VERSION)
+
+.PHONY: coverage.out man version

README.rst

@@ -8,12 +8,17 @@ aptly
 .. image:: https://coveralls.io/repos/smira/aptly/badge.png?branch=HEAD
     :target: https://coveralls.io/r/smira/aptly?branch=HEAD
 
-.. image:: http://gobuild.io/badge/github.com/smira/aptly/download.png
-    :target: http://gobuild.io/github.com/smira/aptly
+.. image:: https://badges.gitter.im/Join Chat.svg
+    :target: https://gitter.im/smira/aptly?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge
 
+.. image:: http://goreportcard.com/badge/smira/aptly
+    :target: http://goreportcard.com/report/smira/aptly
 
 Aptly is a swiss army knife for Debian repository management.
 
+.. image:: http://www.aptly.info/img/aptly_logo.png
+    :target: http://www.aptly.info/
+
 Documentation is available at `http://www.aptly.info/ <http://www.aptly.info/>`_. For support use
 mailing list `aptly-discuss <https://groups.google.com/forum/#!forum/aptly-discuss>`_.
 
@@ -24,14 +29,15 @@ Aptly features: ("+" means planned features)
 * publish snapshot as Debian repository, ready to be consumed by apt
 * controlled update of one or more packages in snapshot from upstream mirror, tracking dependencies
 * merge two or more snapshots into one
-* filter repository by search query, pulling dependencies when required (+)
-* publish self-made packages as Debian repositories (+)
+* filter repository by search query, pulling dependencies when required
+* publish self-made packages as Debian repositories
+* REST API for remote access
 * mirror repositories "as-is" (without resigning with user's key) (+)
 * support for yum repositories (+)
 
 Current limitations:
 
-* debian-installer and translations not supported yet
+* translations are not supported yet
 
 Download
 --------
@@ -42,8 +48,7 @@ To install aptly on Debian/Ubuntu, add new repository to /etc/apt/sources.list::
 
 And import key that is used to sign the release::
 
-    $ gpg --keyserver keys.gnupg.net --recv-keys 2A194991
-    $ gpg -a --export 2A194991 | sudo apt-key add -
+    $ apt-key adv --keyserver keys.gnupg.net --recv-keys 9E3E53F19C7DE460
 
 After that you can install aptly as any other software package::
 
@@ -53,20 +58,52 @@ After that you can install aptly as any other software package::
 Don't worry about squeeze part in repo name: aptly package should work on Debian squeeze+,
 Ubuntu 10.0+. Package contains aptly binary, man page and bash completion.
 
+If you would like to use nightly builds (unstable), please use following repository::
+
+    deb http://repo.aptly.info/ nightly main
+
 Binary executables (depends almost only on libc) are available for download from `Bintray <http://dl.bintray.com/smira/aptly/>`_.
 
-If you have Go environment set up, you can build aptly from source by running (go 1.2+ required)::
+If you have Go environment set up, you can build aptly from source by running (go 1.6+ required)::
 
-    go get -u github.com/mattn/gom
     mkdir -p $GOPATH/src/github.com/smira/aptly
     git clone https://github.com/smira/aptly $GOPATH/src/github.com/smira/aptly
     cd $GOPATH/src/github.com/smira/aptly
-    gom -production install
-    gom build -o $GOPATH/bin/aptly
+    make install
 
-Aptly is using `gom <https://github.com/mattn/gom>`_ to fix external dependencies, so regular ``go get github.com/smira/aptly``
-should work as well, but might fail or produce different result (if external libraries got updated).
+Binary would be installed to ```$GOPATH/bin/aptly``.
 
-If you don't have Go installed (or older version), you can easily install Go using `gvm <https://github.com/moovweb/gvm/>`_.
+Integrations
+------------
 
+Vagrant:
 
+-   `Vagrant configuration <https://github.com/sepulworld/aptly-vagrant>`_ by
+    Zane Williamson, allowing to bring two virtual servers, one with aptly installed
+    and another one set up to install packages from repository published by aptly
+
+Docker:
+
+-    `Docker container <https://github.com/mikepurvis/aptly-docker>`_ with aptly inside by Mike Purvis
+-    `Docker container <https://github.com/bryanhong/docker-aptly>`_ with aptly and nginx by Bryan Hong
+
+With configuration management systems:
+
+-   `Chef cookbook <https://github.com/hw-cookbooks/aptly>`_ by Aaron Baer
+    (Heavy Water Operations, LLC)
+-   `Puppet module <https://github.com/alphagov/puppet-aptly>`_ by
+    Government Digital Services
+-   `Puppet module <https://github.com/tubemogul/puppet-aptly>`_ by
+    TubeMogul
+-   `SaltStack Formula <https://github.com/saltstack-formulas/aptly-formula>`_ by
+    Forrest Alvarez and Brian Jackson
+-   `Ansible role <https://github.com/aioue/ansible-role-aptly>`_ by Tom Paine
+
+CLI for aptly API:
+
+-   `Ruby aptly CLI/library <https://github.com/sepulworld/aptly_cli>`_ by Zane Williamson
+-   `Python aptly CLI (good for CI) <https://github.com/TimSusa/aptly_api_cli>`_ by Tim Susa
+
+Scala sbt:
+
+-   `sbt aptly plugin <https://github.com/amalakar/sbt-aptly>`_ by Arup Malakar

_man/gen.go

@@ -2,16 +2,17 @@ package main
 
 import (
 	"fmt"
-	"github.com/smira/aptly/cmd"
-	"github.com/smira/commander"
-	"github.com/smira/flag"
+	"io/ioutil"
 	"log"
 	"os"
 	"os/exec"
 	"path/filepath"
-	"runtime"
 	"strings"
 	"text/template"
+
+	"github.com/smira/aptly/cmd"
+	"github.com/smira/commander"
+	"github.com/smira/flag"
 )
 
 func allFlags(flags *flag.FlagSet) []*flag.Flag {
@@ -43,22 +44,42 @@ func capitalize(s string) string {
 	return strings.Join(parts, " ")
 }
 
+var authorsS string
+
+func authors() string {
+	return authorsS
+}
+
 func main() {
 	command := cmd.RootCommand()
 	command.UsageLine = "aptly"
 	command.Dispatch(nil)
 
-	_, _File, _, _ := runtime.Caller(0)
-	_File, _ = filepath.Abs(_File)
+	_File, _ := filepath.Abs("./man")
 
 	templ := template.New("man").Funcs(template.FuncMap{
 		"allFlags":    allFlags,
 		"findCommand": findCommand,
 		"toUpper":     strings.ToUpper,
 		"capitalize":  capitalize,
+		"authors":     authors,
 	})
 	template.Must(templ.ParseFiles(filepath.Join(filepath.Dir(_File), "aptly.1.ronn.tmpl")))
 
+	authorsF, err := os.Open(filepath.Join(filepath.Dir(_File), "..", "AUTHORS"))
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	authorsB, err := ioutil.ReadAll(authorsF)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	authorsF.Close()
+
+	authorsS = string(authorsB)
+
 	output, err := os.Create(filepath.Join(filepath.Dir(_File), "aptly.1.ronn"))
 	if err != nil {
 		log.Fatal(err)

api/api.go

@@ -0,0 +1,160 @@
+// Package api provides implementation of aptly REST API
+package api
+
+import (
+	"fmt"
+	"sort"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/smira/aptly/aptly"
+	"github.com/smira/aptly/deb"
+	"github.com/smira/aptly/query"
+)
+
+// Lock order acquisition (canonical):
+//  1. RemoteRepoCollection
+//  2. LocalRepoCollection
+//  3. SnapshotCollection
+//  4. PublishedRepoCollection
+
+// GET /api/version
+func apiVersion(c *gin.Context) {
+	c.JSON(200, gin.H{"Version": aptly.Version})
+}
+
+const (
+	acquiredb = iota
+	releasedb
+)
+
+// Flushes all collections which cache in-memory objects
+func flushColections() {
+	// lock everything to eliminate in-progress calls
+	r := context.CollectionFactory().RemoteRepoCollection()
+	r.Lock()
+	defer r.Unlock()
+
+	l := context.CollectionFactory().LocalRepoCollection()
+	l.Lock()
+	defer l.Unlock()
+
+	s := context.CollectionFactory().SnapshotCollection()
+	s.Lock()
+	defer s.Unlock()
+
+	p := context.CollectionFactory().PublishedRepoCollection()
+	p.Lock()
+	defer p.Unlock()
+
+	// all collections locked, flush them
+	context.CollectionFactory().Flush()
+}
+
+// Periodically flushes CollectionFactory to free up memory used by
+// collections, flushing caches. If the two channels are provided,
+// they are used to acquire and release the database.
+//
+// Should be run in goroutine!
+func cacheFlusher(requests chan int, acks chan error) {
+	ticker := time.Tick(15 * time.Minute)
+
+	for {
+		<-ticker
+
+		// if aptly API runs in -no-lock mode,
+		// caches are flushed when DB is closed anyway, no need
+		// to flush them here
+		if requests == nil {
+			flushColections()
+		}
+	}
+}
+
+// Acquire database lock and release it when not needed anymore. Two
+// channels must be provided. The first one is to receive requests to
+// acquire/release the database and the second one is to send acks.
+//
+// Should be run in a goroutine!
+func acquireDatabase(requests chan int, acks chan error) {
+	clients := 0
+	for {
+		request := <-requests
+		switch request {
+		case acquiredb:
+			if clients == 0 {
+				acks <- context.ReOpenDatabase()
+			} else {
+				acks <- nil
+			}
+			clients++
+		case releasedb:
+			clients--
+			if clients == 0 {
+				flushColections()
+				acks <- context.CloseDatabase()
+			} else {
+				acks <- nil
+			}
+		}
+	}
+}
+
+// Common piece of code to show list of packages,
+// with searching & details if requested
+func showPackages(c *gin.Context, reflist *deb.PackageRefList) {
+	result := []*deb.Package{}
+
+	list, err := deb.NewPackageListFromRefList(reflist, context.CollectionFactory().PackageCollection(), nil)
+	if err != nil {
+		c.Fail(404, err)
+		return
+	}
+
+	queryS := c.Request.URL.Query().Get("q")
+	if queryS != "" {
+		q, err := query.Parse(c.Request.URL.Query().Get("q"))
+		if err != nil {
+			c.Fail(400, err)
+			return
+		}
+
+		withDeps := c.Request.URL.Query().Get("withDeps") == "1"
+		architecturesList := []string{}
+
+		if withDeps {
+			if len(context.ArchitecturesList()) > 0 {
+				architecturesList = context.ArchitecturesList()
+			} else {
+				architecturesList = list.Architectures(false)
+			}
+
+			sort.Strings(architecturesList)
+
+			if len(architecturesList) == 0 {
+				c.Fail(400, fmt.Errorf("unable to determine list of architectures, please specify explicitly"))
+				return
+			}
+		}
+
+		list.PrepareIndex()
+
+		list, err = list.Filter([]deb.PackageQuery{q}, withDeps,
+			nil, context.DependencyOptions(), architecturesList)
+		if err != nil {
+			c.Fail(500, fmt.Errorf("unable to search: %s", err))
+			return
+		}
+	}
+
+	if c.Request.URL.Query().Get("format") == "details" {
+		list.ForEach(func(p *deb.Package) error {
+			result = append(result, p)
+			return nil
+		})
+
+		c.JSON(200, result)
+	} else {
+		c.JSON(200, list.Strings())
+	}
+}

api/files.go

@@ -0,0 +1,186 @@
+package api
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+)
+
+func verifyPath(path string) bool {
+	path = filepath.Clean(path)
+	for _, part := range strings.Split(path, string(filepath.Separator)) {
+		if part == ".." || part == "." {
+			return false
+		}
+	}
+
+	return true
+
+}
+
+func verifyDir(c *gin.Context) bool {
+	if !verifyPath(c.Params.ByName("dir")) {
+		c.Fail(400, fmt.Errorf("wrong dir"))
+		return false
+	}
+
+	return true
+}
+
+// GET /files
+func apiFilesListDirs(c *gin.Context) {
+	list := []string{}
+
+	err := filepath.Walk(context.UploadPath(), func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+
+		if path == context.UploadPath() {
+			return nil
+		}
+
+		if info.IsDir() {
+			list = append(list, filepath.Base(path))
+			return filepath.SkipDir
+		}
+
+		return nil
+	})
+
+	if err != nil && !os.IsNotExist(err) {
+		c.Fail(400, err)
+		return
+	}
+
+	c.JSON(200, list)
+}
+
+// POST /files/:dir/
+func apiFilesUpload(c *gin.Context) {
+	if !verifyDir(c) {
+		return
+	}
+
+	path := filepath.Join(context.UploadPath(), c.Params.ByName("dir"))
+	err := os.MkdirAll(path, 0777)
+
+	if err != nil {
+		c.Fail(500, err)
+		return
+	}
+
+	err = c.Request.ParseMultipartForm(10 * 1024 * 1024)
+	if err != nil {
+		c.Fail(400, err)
+		return
+	}
+
+	stored := []string{}
+
+	for _, files := range c.Request.MultipartForm.File {
+		for _, file := range files {
+			src, err := file.Open()
+			if err != nil {
+				c.Fail(500, err)
+				return
+			}
+			defer src.Close()
+
+			destPath := filepath.Join(path, filepath.Base(file.Filename))
+			dst, err := os.Create(destPath)
+			if err != nil {
+				c.Fail(500, err)
+				return
+			}
+			defer dst.Close()
+
+			_, err = io.Copy(dst, src)
+			if err != nil {
+				c.Fail(500, err)
+				return
+			}
+
+			stored = append(stored, filepath.Join(c.Params.ByName("dir"), filepath.Base(file.Filename)))
+		}
+	}
+
+	c.JSON(200, stored)
+
+}
+
+// GET /files/:dir
+func apiFilesListFiles(c *gin.Context) {
+	if !verifyDir(c) {
+		return
+	}
+
+	list := []string{}
+	root := filepath.Join(context.UploadPath(), c.Params.ByName("dir"))
+
+	err := filepath.Walk(root, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+
+		if path == root {
+			return nil
+		}
+
+		list = append(list, filepath.Base(path))
+
+		return nil
+	})
+
+	if err != nil {
+		if os.IsNotExist(err) {
+			c.Fail(404, err)
+		} else {
+			c.Fail(500, err)
+		}
+		return
+	}
+
+	c.JSON(200, list)
+}
+
+// DELETE /files/:dir
+func apiFilesDeleteDir(c *gin.Context) {
+	if !verifyDir(c) {
+		return
+	}
+
+	err := os.RemoveAll(filepath.Join(context.UploadPath(), c.Params.ByName("dir")))
+	if err != nil {
+		c.Fail(500, err)
+		return
+	}
+
+	c.JSON(200, gin.H{})
+}
+
+// DELETE /files/:dir/:name
+func apiFilesDeleteFile(c *gin.Context) {
+	if !verifyDir(c) {
+		return
+	}
+
+	if !verifyPath(c.Params.ByName("name")) {
+		c.Fail(400, fmt.Errorf("wrong file"))
+		return
+	}
+
+	err := os.Remove(filepath.Join(context.UploadPath(), c.Params.ByName("dir"), c.Params.ByName("name")))
+	if err != nil {
+		if err1, ok := err.(*os.PathError); !ok || !os.IsNotExist(err1.Err) {
+			c.Fail(500, err)
+			return
+		}
+	}
+
+	c.JSON(200, gin.H{})
+}

api/graph.go

@@ -0,0 +1,84 @@
+package api
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"mime"
+	"os"
+	"os/exec"
+
+	"github.com/gin-gonic/gin"
+	"github.com/smira/aptly/deb"
+)
+
+// GET /api/graph.:ext?layout=[vertical|horizontal(default)]
+func apiGraph(c *gin.Context) {
+	var (
+		err    error
+		output []byte
+	)
+
+	ext := c.Params.ByName("ext")
+	layout := c.Request.URL.Query().Get("layout")
+
+	factory := context.CollectionFactory()
+
+	factory.RemoteRepoCollection().RLock()
+	defer factory.RemoteRepoCollection().RUnlock()
+	factory.LocalRepoCollection().RLock()
+	defer factory.LocalRepoCollection().RUnlock()
+	factory.SnapshotCollection().RLock()
+	defer factory.SnapshotCollection().RUnlock()
+	factory.PublishedRepoCollection().RLock()
+	defer factory.PublishedRepoCollection().RUnlock()
+
+	graph, err := deb.BuildGraph(factory, layout)
+	if err != nil {
+		c.JSON(500, err)
+		return
+	}
+
+	buf := bytes.NewBufferString(graph.String())
+
+	if ext == "dot" || ext == "gv" {
+		// If the raw dot data is requested, return it as string.
+		// This allows client-side rendering rather than server-side.
+		c.String(200, buf.String())
+		return
+	}
+
+	command := exec.Command("dot", "-T"+ext)
+	command.Stderr = os.Stderr
+
+	stdin, err := command.StdinPipe()
+	if err != nil {
+		c.Fail(500, err)
+		return
+	}
+
+	_, err = io.Copy(stdin, buf)
+	if err != nil {
+		c.Fail(500, err)
+		return
+	}
+
+	err = stdin.Close()
+	if err != nil {
+		c.Fail(500, err)
+		return
+	}
+
+	output, err = command.Output()
+	if err != nil {
+		c.Fail(500, fmt.Errorf("unable to execute dot: %s (is graphviz package installed?)", err))
+		return
+	}
+
+	mimeType := mime.TypeByExtension("." + ext)
+	if mimeType == "" {
+		mimeType = "application/octet-stream"
+	}
+
+	c.Data(200, mimeType, output)
+}

api/packages.go

@@ -0,0 +1,16 @@
+package api
+
+import (
+	"github.com/gin-gonic/gin"
+)
+
+// GET /api/packages/:key
+func apiPackagesShow(c *gin.Context) {
+	p, err := context.CollectionFactory().PackageCollection().ByKey([]byte(c.Params.ByName("key")))
+	if err != nil {
+		c.Fail(404, err)
+		return
+	}
+
+	c.JSON(200, p)
+}

api/publish.go

@@ -0,0 +1,355 @@
+package api
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+	"github.com/smira/aptly/deb"
+	"github.com/smira/aptly/utils"
+)
+
+// SigningOptions is a shared between publish API GPG options structure
+type SigningOptions struct {
+	Skip           bool
+	Batch          bool
+	GpgKey         string
+	Keyring        string
+	SecretKeyring  string
+	Passphrase     string
+	PassphraseFile string
+}
+
+func getSigner(options *SigningOptions) (utils.Signer, error) {
+	if options.Skip {
+		return nil, nil
+	}
+
+	signer := &utils.GpgSigner{}
+	signer.SetKey(options.GpgKey)
+	signer.SetKeyRing(options.Keyring, options.SecretKeyring)
+	signer.SetPassphrase(options.Passphrase, options.PassphraseFile)
+	signer.SetBatch(options.Batch)
+
+	err := signer.Init()
+	if err != nil {
+		return nil, err
+	}
+
+	return signer, nil
+}
+
+// Replace '_' with '/' and double '__' with single '_'
+func parseEscapedPath(path string) string {
+	result := strings.Replace(strings.Replace(path, "_", "/", -1), "//", "_", -1)
+	if result == "" {
+		result = "."
+	}
+	return result
+}
+
+// GET /publish
+func apiPublishList(c *gin.Context) {
+	localCollection := context.CollectionFactory().LocalRepoCollection()
+	localCollection.RLock()
+	defer localCollection.RUnlock()
+
+	snapshotCollection := context.CollectionFactory().SnapshotCollection()
+	snapshotCollection.RLock()
+	defer snapshotCollection.RUnlock()
+
+	collection := context.CollectionFactory().PublishedRepoCollection()
+	collection.RLock()
+	defer collection.RUnlock()
+
+	result := make([]*deb.PublishedRepo, 0, collection.Len())
+
+	err := collection.ForEach(func(repo *deb.PublishedRepo) error {
+		err := collection.LoadComplete(repo, context.CollectionFactory())
+		if err != nil {
+			return err
+		}
+
+		result = append(result, repo)
+
+		return nil
+	})
+
+	if err != nil {
+		c.Fail(500, err)
+		return
+	}
+
+	c.JSON(200, result)
+}
+
+// POST /publish/:prefix
+func apiPublishRepoOrSnapshot(c *gin.Context) {
+	param := parseEscapedPath(c.Params.ByName("prefix"))
+	storage, prefix := deb.ParsePrefix(param)
+
+	var b struct {
+		SourceKind string `binding:"required"`
+		Sources    []struct {
+			Component string
+			Name      string `binding:"required"`
+		} `binding:"required"`
+		Distribution   string
+		Label          string
+		Origin         string
+		ForceOverwrite bool
+		SkipContents   *bool
+		Architectures  []string
+		Signing        SigningOptions
+	}
+
+	if !c.Bind(&b) {
+		return
+	}
+
+	signer, err := getSigner(&b.Signing)
+	if err != nil {
+		c.Fail(500, fmt.Errorf("unable to initialize GPG signer: %s", err))
+		return
+	}
+
+	if len(b.Sources) == 0 {
+		c.Fail(400, fmt.Errorf("unable to publish: soures are empty"))
+		return
+	}
+
+	var components []string
+	var sources []interface{}
+
+	if b.SourceKind == "snapshot" {
+		var snapshot *deb.Snapshot
+
+		snapshotCollection := context.CollectionFactory().SnapshotCollection()
+		snapshotCollection.RLock()
+		defer snapshotCollection.RUnlock()
+
+		for _, source := range b.Sources {
+			components = append(components, source.Component)
+
+			snapshot, err = snapshotCollection.ByName(source.Name)
+			if err != nil {
+				c.Fail(404, fmt.Errorf("unable to publish: %s", err))
+				return
+			}
+
+			err = snapshotCollection.LoadComplete(snapshot)
+			if err != nil {
+				c.Fail(500, fmt.Errorf("unable to publish: %s", err))
+				return
+			}
+
+			sources = append(sources, snapshot)
+		}
+	} else if b.SourceKind == "local" {
+		var localRepo *deb.LocalRepo
+
+		localCollection := context.CollectionFactory().LocalRepoCollection()
+		localCollection.RLock()
+		defer localCollection.RUnlock()
+
+		for _, source := range b.Sources {
+			components = append(components, source.Component)
+
+			localRepo, err = localCollection.ByName(source.Name)
+			if err != nil {
+				c.Fail(404, fmt.Errorf("unable to publish: %s", err))
+				return
+			}
+
+			err = localCollection.LoadComplete(localRepo)
+			if err != nil {
+				c.Fail(500, fmt.Errorf("unable to publish: %s", err))
+			}
+
+			sources = append(sources, localRepo)
+		}
+	} else {
+		c.Fail(400, fmt.Errorf("unknown SourceKind"))
+		return
+	}
+
+	collection := context.CollectionFactory().PublishedRepoCollection()
+	collection.Lock()
+	defer collection.Unlock()
+
+	published, err := deb.NewPublishedRepo(storage, prefix, b.Distribution, b.Architectures, components, sources, context.CollectionFactory())
+	if err != nil {
+		c.Fail(500, fmt.Errorf("unable to publish: %s", err))
+		return
+	}
+	published.Origin = b.Origin
+	published.Label = b.Label
+
+	published.SkipContents = context.Config().SkipContentsPublishing
+	if b.SkipContents != nil {
+		published.SkipContents = *b.SkipContents
+	}
+
+	duplicate := collection.CheckDuplicate(published)
+	if duplicate != nil {
+		context.CollectionFactory().PublishedRepoCollection().LoadComplete(duplicate, context.CollectionFactory())
+		c.Fail(400, fmt.Errorf("prefix/distribution already used by another published repo: %s", duplicate))
+		return
+	}
+
+	err = published.Publish(context.PackagePool(), context, context.CollectionFactory(), signer, nil, b.ForceOverwrite)
+	if err != nil {
+		c.Fail(500, fmt.Errorf("unable to publish: %s", err))
+		return
+	}
+
+	err = collection.Add(published)
+	if err != nil {
+		c.Fail(500, fmt.Errorf("unable to save to DB: %s", err))
+		return
+	}
+
+	c.JSON(201, published)
+}
+
+// PUT /publish/:prefix/:distribution
+func apiPublishUpdateSwitch(c *gin.Context) {
+	param := parseEscapedPath(c.Params.ByName("prefix"))
+	storage, prefix := deb.ParsePrefix(param)
+	distribution := c.Params.ByName("distribution")
+
+	var b struct {
+		ForceOverwrite bool
+		Signing        SigningOptions
+		SkipContents   *bool
+		Snapshots      []struct {
+			Component string `binding:"required"`
+			Name      string `binding:"required"`
+		}
+	}
+
+	if !c.Bind(&b) {
+		return
+	}
+
+	signer, err := getSigner(&b.Signing)
+	if err != nil {
+		c.Fail(500, fmt.Errorf("unable to initialize GPG signer: %s", err))
+		return
+	}
+
+	// published.LoadComplete would touch local repo collection
+	localRepoCollection := context.CollectionFactory().LocalRepoCollection()
+	localRepoCollection.RLock()
+	defer localRepoCollection.RUnlock()
+
+	snapshotCollection := context.CollectionFactory().SnapshotCollection()
+	snapshotCollection.RLock()
+	defer snapshotCollection.RUnlock()
+
+	collection := context.CollectionFactory().PublishedRepoCollection()
+	collection.Lock()
+	defer collection.Unlock()
+
+	published, err := collection.ByStoragePrefixDistribution(storage, prefix, distribution)
+	if err != nil {
+		c.Fail(404, fmt.Errorf("unable to update: %s", err))
+		return
+	}
+	err = collection.LoadComplete(published, context.CollectionFactory())
+	if err != nil {
+		c.Fail(500, fmt.Errorf("unable to update: %s", err))
+		return
+	}
+
+	var updatedComponents []string
+
+	if published.SourceKind == "local" {
+		if len(b.Snapshots) > 0 {
+			c.Fail(400, fmt.Errorf("snapshots shouldn't be given when updating local repo"))
+			return
+		}
+		updatedComponents = published.Components()
+		for _, component := range updatedComponents {
+			published.UpdateLocalRepo(component)
+		}
+	} else if published.SourceKind == "snapshot" {
+		publishedComponents := published.Components()
+		for _, snapshotInfo := range b.Snapshots {
+			if !utils.StrSliceHasItem(publishedComponents, snapshotInfo.Component) {
+				c.Fail(404, fmt.Errorf("component %s is not in published repository", snapshotInfo.Component))
+				return
+			}
+
+			snapshot, err := snapshotCollection.ByName(snapshotInfo.Name)
+			if err != nil {
+				c.Fail(404, err)
+				return
+			}
+
+			err = snapshotCollection.LoadComplete(snapshot)
+			if err != nil {
+				c.Fail(500, err)
+				return
+			}
+
+			published.UpdateSnapshot(snapshotInfo.Component, snapshot)
+			updatedComponents = append(updatedComponents, snapshotInfo.Component)
+		}
+	} else {
+		c.Fail(500, fmt.Errorf("unknown published repository type"))
+		return
+	}
+
+	if b.SkipContents != nil {
+		published.SkipContents = *b.SkipContents
+	}
+
+	err = published.Publish(context.PackagePool(), context, context.CollectionFactory(), signer, nil, b.ForceOverwrite)
+	if err != nil {
+		c.Fail(500, fmt.Errorf("unable to update: %s", err))
+		return
+	}
+
+	err = collection.Update(published)
+	if err != nil {
+		c.Fail(500, fmt.Errorf("unable to save to DB: %s", err))
+		return
+	}
+
+	err = collection.CleanupPrefixComponentFiles(published.Prefix, updatedComponents,
+		context.GetPublishedStorage(storage), context.CollectionFactory(), nil)
+	if err != nil {
+		c.Fail(500, fmt.Errorf("unable to update: %s", err))
+		return
+	}
+
+	c.JSON(200, published)
+}
+
+// DELETE /publish/:prefix/:distribution
+func apiPublishDrop(c *gin.Context) {
+	force := c.Request.URL.Query().Get("force") == "1"
+
+	param := parseEscapedPath(c.Params.ByName("prefix"))
+	storage, prefix := deb.ParsePrefix(param)
+	distribution := c.Params.ByName("distribution")
+
+	// published.LoadComplete would touch local repo collection
+	localRepoCollection := context.CollectionFactory().LocalRepoCollection()
+	localRepoCollection.RLock()
+	defer localRepoCollection.RUnlock()
+
+	collection := context.CollectionFactory().PublishedRepoCollection()
+	collection.Lock()
+	defer collection.Unlock()
+
+	err := collection.Remove(context, storage, prefix, distribution,
+		context.CollectionFactory(), context.Progress(), force)
+	if err != nil {
+		c.Fail(500, fmt.Errorf("unable to drop: %s", err))
+		return
+	}
+
+	c.JSON(200, gin.H{})
+}

api/repos.go

@@ -0,0 +1,366 @@
+package api
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/gin-gonic/gin"
+	"github.com/smira/aptly/aptly"
+	"github.com/smira/aptly/database"
+	"github.com/smira/aptly/deb"
+	"github.com/smira/aptly/utils"
+)
+
+// GET /api/repos
+func apiReposList(c *gin.Context) {
+	result := []*deb.LocalRepo{}
+
+	collection := context.CollectionFactory().LocalRepoCollection()
+	collection.RLock()
+	defer collection.RUnlock()
+
+	context.CollectionFactory().LocalRepoCollection().ForEach(func(r *deb.LocalRepo) error {
+		result = append(result, r)
+		return nil
+	})
+
+	c.JSON(200, result)
+}
+
+// POST /api/repos
+func apiReposCreate(c *gin.Context) {
+	var b struct {
+		Name                string `binding:"required"`
+		Comment             string
+		DefaultDistribution string
+		DefaultComponent    string
+	}
+
+	if !c.Bind(&b) {
+		return
+	}
+
+	repo := deb.NewLocalRepo(b.Name, b.Comment)
+	repo.DefaultComponent = b.DefaultComponent
+	repo.DefaultDistribution = b.DefaultDistribution
+
+	collection := context.CollectionFactory().LocalRepoCollection()
+	collection.Lock()
+	defer collection.Unlock()
+
+	err := context.CollectionFactory().LocalRepoCollection().Add(repo)
+	if err != nil {
+		c.Fail(400, err)
+		return
+	}
+
+	c.JSON(201, repo)
+}
+
+// PUT /api/repos/:name
+func apiReposEdit(c *gin.Context) {
+	var b struct {
+		Comment             *string
+		DefaultDistribution *string
+		DefaultComponent    *string
+	}
+
+	if !c.Bind(&b) {
+		return
+	}
+
+	collection := context.CollectionFactory().LocalRepoCollection()
+	collection.Lock()
+	defer collection.Unlock()
+
+	repo, err := collection.ByName(c.Params.ByName("name"))
+	if err != nil {
+		c.Fail(404, err)
+		return
+	}
+
+	if b.Comment != nil {
+		repo.Comment = *b.Comment
+	}
+	if b.DefaultDistribution != nil {
+		repo.DefaultDistribution = *b.DefaultDistribution
+	}
+	if b.DefaultComponent != nil {
+		repo.DefaultComponent = *b.DefaultComponent
+	}
+
+	err = collection.Update(repo)
+	if err != nil {
+		c.Fail(500, err)
+		return
+	}
+
+	c.JSON(200, repo)
+}
+
+// GET /api/repos/:name
+func apiReposShow(c *gin.Context) {
+	collection := context.CollectionFactory().LocalRepoCollection()
+	collection.RLock()
+	defer collection.RUnlock()
+
+	repo, err := collection.ByName(c.Params.ByName("name"))
+	if err != nil {
+		c.Fail(404, err)
+		return
+	}
+
+	c.JSON(200, repo)
+}
+
+// DELETE /api/repos/:name
+func apiReposDrop(c *gin.Context) {
+	force := c.Request.URL.Query().Get("force") == "1"
+
+	collection := context.CollectionFactory().LocalRepoCollection()
+	collection.Lock()
+	defer collection.Unlock()
+
+	snapshotCollection := context.CollectionFactory().SnapshotCollection()
+	snapshotCollection.RLock()
+	defer snapshotCollection.RUnlock()
+
+	publishedCollection := context.CollectionFactory().PublishedRepoCollection()
+	publishedCollection.RLock()
+	defer publishedCollection.RUnlock()
+
+	repo, err := collection.ByName(c.Params.ByName("name"))
+	if err != nil {
+		c.Fail(404, err)
+		return
+	}
+
+	published := publishedCollection.ByLocalRepo(repo)
+	if len(published) > 0 {
+		c.Fail(409, fmt.Errorf("unable to drop, local repo is published"))
+		return
+	}
+
+	if !force {
+		snapshots := snapshotCollection.ByLocalRepoSource(repo)
+		if len(snapshots) > 0 {
+			c.Fail(409, fmt.Errorf("unable to drop, local repo has snapshots, use ?force=1 to override"))
+			return
+		}
+	}
+
+	err = collection.Drop(repo)
+	if err != nil {
+		c.Fail(500, err)
+		return
+	}
+
+	c.JSON(200, gin.H{})
+}
+
+// GET /api/repos/:name/packages
+func apiReposPackagesShow(c *gin.Context) {
+	collection := context.CollectionFactory().LocalRepoCollection()
+	collection.RLock()
+	defer collection.RUnlock()
+
+	repo, err := collection.ByName(c.Params.ByName("name"))
+	if err != nil {
+		c.Fail(404, err)
+		return
+	}
+
+	err = collection.LoadComplete(repo)
+	if err != nil {
+		c.Fail(500, err)
+		return
+	}
+
+	showPackages(c, repo.RefList())
+}
+
+// Handler for both add and delete
+func apiReposPackagesAddDelete(c *gin.Context, cb func(list *deb.PackageList, p *deb.Package) error) {
+	var b struct {
+		PackageRefs []string
+	}
+
+	if !c.Bind(&b) {
+		return
+	}
+
+	collection := context.CollectionFactory().LocalRepoCollection()
+	collection.Lock()
+	defer collection.Unlock()
+
+	repo, err := collection.ByName(c.Params.ByName("name"))
+	if err != nil {
+		c.Fail(404, err)
+		return
+	}
+
+	err = collection.LoadComplete(repo)
+	if err != nil {
+		c.Fail(500, err)
+		return
+	}
+
+	list, err := deb.NewPackageListFromRefList(repo.RefList(), context.CollectionFactory().PackageCollection(), nil)
+	if err != nil {
+		c.Fail(500, err)
+		return
+	}
+
+	// verify package refs and build package list
+	for _, ref := range b.PackageRefs {
+		var p *deb.Package
+
+		p, err = context.CollectionFactory().PackageCollection().ByKey([]byte(ref))
+		if err != nil {
+			if err == database.ErrNotFound {
+				c.Fail(404, fmt.Errorf("package %s: %s", ref, err))
+			} else {
+				c.Fail(500, err)
+			}
+			return
+		}
+		err = cb(list, p)
+		if err != nil {
+			c.Fail(400, err)
+			return
+		}
+	}
+
+	repo.UpdateRefList(deb.NewPackageRefListFromPackageList(list))
+
+	err = context.CollectionFactory().LocalRepoCollection().Update(repo)
+	if err != nil {
+		c.Fail(500, fmt.Errorf("unable to save: %s", err))
+		return
+	}
+
+	c.JSON(200, repo)
+
+}
+
+// POST /repos/:name/packages
+func apiReposPackagesAdd(c *gin.Context) {
+	apiReposPackagesAddDelete(c, func(list *deb.PackageList, p *deb.Package) error {
+		return list.Add(p)
+	})
+}
+
+// DELETE /repos/:name/packages
+func apiReposPackagesDelete(c *gin.Context) {
+	apiReposPackagesAddDelete(c, func(list *deb.PackageList, p *deb.Package) error {
+		list.Remove(p)
+		return nil
+	})
+}
+
+// POST /repos/:name/file/:dir/:file
+func apiReposPackageFromFile(c *gin.Context) {
+	// redirect all work to dir method
+	apiReposPackageFromDir(c)
+}
+
+// POST /repos/:name/file/:dir
+func apiReposPackageFromDir(c *gin.Context) {
+	forceReplace := c.Request.URL.Query().Get("forceReplace") == "1"
+	noRemove := c.Request.URL.Query().Get("noRemove") == "1"
+
+	if !verifyDir(c) {
+		return
+	}
+
+	fileParam := c.Params.ByName("file")
+	if fileParam != "" && !verifyPath(fileParam) {
+		c.Fail(400, fmt.Errorf("wrong file"))
+		return
+	}
+
+	collection := context.CollectionFactory().LocalRepoCollection()
+	collection.Lock()
+	defer collection.Unlock()
+
+	repo, err := collection.ByName(c.Params.ByName("name"))
+	if err != nil {
+		c.Fail(404, err)
+		return
+	}
+
+	err = collection.LoadComplete(repo)
+	if err != nil {
+		c.Fail(500, err)
+		return
+	}
+
+	verifier := &utils.GpgVerifier{}
+
+	var (
+		sources                      []string
+		packageFiles, failedFiles    []string
+		processedFiles, failedFiles2 []string
+		reporter                     = &aptly.RecordingResultReporter{
+			Warnings:     []string{},
+			AddedLines:   []string{},
+			RemovedLines: []string{},
+		}
+		list *deb.PackageList
+	)
+
+	if fileParam == "" {
+		sources = []string{filepath.Join(context.UploadPath(), c.Params.ByName("dir"))}
+	} else {
+		sources = []string{filepath.Join(context.UploadPath(), c.Params.ByName("dir"), c.Params.ByName("file"))}
+	}
+
+	packageFiles, failedFiles = deb.CollectPackageFiles(sources, reporter)
+
+	list, err = deb.NewPackageListFromRefList(repo.RefList(), context.CollectionFactory().PackageCollection(), nil)
+	if err != nil {
+		c.Fail(500, fmt.Errorf("unable to load packages: %s", err))
+		return
+	}
+
+	processedFiles, failedFiles2, err = deb.ImportPackageFiles(list, packageFiles, forceReplace, verifier, context.PackagePool(),
+		context.CollectionFactory().PackageCollection(), reporter, nil)
+	failedFiles = append(failedFiles, failedFiles2...)
+
+	if err != nil {
+		c.Fail(500, fmt.Errorf("unable to import package files: %s", err))
+		return
+	}
+
+	repo.UpdateRefList(deb.NewPackageRefListFromPackageList(list))
+
+	err = context.CollectionFactory().LocalRepoCollection().Update(repo)
+	if err != nil {
+		c.Fail(500, fmt.Errorf("unable to save: %s", err))
+		return
+	}
+
+	if !noRemove {
+		processedFiles = utils.StrSliceDeduplicate(processedFiles)
+
+		for _, file := range processedFiles {
+			err := os.Remove(file)
+			if err != nil {
+				reporter.Warning("unable to remove file %s: %s", file, err)
+			}
+		}
+
+		// atempt to remove dir, if it fails, that's fine: probably it's not empty
+		os.Remove(filepath.Join(context.UploadPath(), c.Params.ByName("dir")))
+	}
+
+	if failedFiles == nil {
+		failedFiles = []string{}
+	}
+
+	c.JSON(200, gin.H{
+		"Report":      reporter,
+		"FailedFiles": failedFiles,
+	})
+}

api/router.go

@@ -0,0 +1,113 @@
+package api
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	ctx "github.com/smira/aptly/context"
+)
+
+var context *ctx.AptlyContext
+
+// Router returns prebuilt with routes http.Handler
+func Router(c *ctx.AptlyContext) http.Handler {
+	context = c
+
+	router := gin.Default()
+	router.Use(gin.ErrorLogger())
+
+	if context.Flags().Lookup("no-lock").Value.Get().(bool) {
+		// We use a goroutine to count the number of
+		// concurrent requests. When no more requests are
+		// running, we close the database to free the lock.
+		requests := make(chan int)
+		acks := make(chan error)
+
+		go acquireDatabase(requests, acks)
+		go cacheFlusher(requests, acks)
+
+		router.Use(func(c *gin.Context) {
+			requests <- acquiredb
+			err := <-acks
+			if err != nil {
+				c.Fail(500, err)
+				return
+			}
+			defer func() {
+				requests <- releasedb
+				err = <-acks
+				if err != nil {
+					c.Fail(500, err)
+					return
+				}
+			}()
+			c.Next()
+		})
+
+	} else {
+		go cacheFlusher(nil, nil)
+	}
+
+	root := router.Group("/api")
+
+	{
+		root.GET("/version", apiVersion)
+	}
+
+	{
+		root.GET("/repos", apiReposList)
+		root.POST("/repos", apiReposCreate)
+		root.GET("/repos/:name", apiReposShow)
+		root.PUT("/repos/:name", apiReposEdit)
+		root.DELETE("/repos/:name", apiReposDrop)
+
+		root.GET("/repos/:name/packages", apiReposPackagesShow)
+		root.POST("/repos/:name/packages", apiReposPackagesAdd)
+		root.DELETE("/repos/:name/packages", apiReposPackagesDelete)
+
+		root.POST("/repos/:name/file/:dir/:file", apiReposPackageFromFile)
+		root.POST("/repos/:name/file/:dir", apiReposPackageFromDir)
+
+		root.POST("/repos/:name/snapshots", apiSnapshotsCreateFromRepository)
+	}
+
+	{
+		root.POST("/mirrors/:name/snapshots", apiSnapshotsCreateFromMirror)
+	}
+
+	{
+		root.GET("/files", apiFilesListDirs)
+		root.POST("/files/:dir", apiFilesUpload)
+		root.GET("/files/:dir", apiFilesListFiles)
+		root.DELETE("/files/:dir", apiFilesDeleteDir)
+		root.DELETE("/files/:dir/:name", apiFilesDeleteFile)
+	}
+
+	{
+		root.GET("/publish", apiPublishList)
+		root.POST("/publish", apiPublishRepoOrSnapshot)
+		root.POST("/publish/:prefix", apiPublishRepoOrSnapshot)
+		root.PUT("/publish/:prefix/:distribution", apiPublishUpdateSwitch)
+		root.DELETE("/publish/:prefix/:distribution", apiPublishDrop)
+	}
+
+	{
+		root.GET("/snapshots", apiSnapshotsList)
+		root.POST("/snapshots", apiSnapshotsCreate)
+		root.PUT("/snapshots/:name", apiSnapshotsUpdate)
+		root.GET("/snapshots/:name", apiSnapshotsShow)
+		root.GET("/snapshots/:name/packages", apiSnapshotsSearchPackages)
+		root.DELETE("/snapshots/:name", apiSnapshotsDrop)
+		root.GET("/snapshots/:name/diff/:withSnapshot", apiSnapshotsDiff)
+	}
+
+	{
+		root.GET("/packages/:key", apiPackagesShow)
+	}
+
+	{
+		root.GET("/graph.:ext", apiGraph)
+	}
+
+	return router
+}

api/snapshot.go

@@ -0,0 +1,411 @@
+package api
+
+import (
+	"fmt"
+
+	"github.com/gin-gonic/gin"
+	"github.com/smira/aptly/database"
+	"github.com/smira/aptly/deb"
+)
+
+// GET /api/snapshots
+func apiSnapshotsList(c *gin.Context) {
+	SortMethodString := c.Request.URL.Query().Get("sort")
+
+	collection := context.CollectionFactory().SnapshotCollection()
+	collection.RLock()
+	defer collection.RUnlock()
+
+	if SortMethodString == "" {
+		SortMethodString = "name"
+	}
+
+	result := []*deb.Snapshot{}
+	collection.ForEachSorted(SortMethodString, func(snapshot *deb.Snapshot) error {
+		result = append(result, snapshot)
+		return nil
+	})
+
+	c.JSON(200, result)
+}
+
+// POST /api/mirrors/:name/snapshots/
+func apiSnapshotsCreateFromMirror(c *gin.Context) {
+	var (
+		err      error
+		repo     *deb.RemoteRepo
+		snapshot *deb.Snapshot
+	)
+
+	var b struct {
+		Name        string `binding:"required"`
+		Description string
+	}
+
+	if !c.Bind(&b) {
+		return
+	}
+
+	collection := context.CollectionFactory().RemoteRepoCollection()
+	collection.RLock()
+	defer collection.RUnlock()
+
+	snapshotCollection := context.CollectionFactory().SnapshotCollection()
+	snapshotCollection.Lock()
+	defer snapshotCollection.Unlock()
+
+	repo, err = collection.ByName(c.Params.ByName("name"))
+	if err != nil {
+		c.Fail(404, err)
+		return
+	}
+
+	err = repo.CheckLock()
+	if err != nil {
+		c.Fail(409, err)
+		return
+	}
+
+	err = collection.LoadComplete(repo)
+	if err != nil {
+		c.Fail(500, err)
+		return
+	}
+
+	snapshot, err = deb.NewSnapshotFromRepository(b.Name, repo)
+	if err != nil {
+		c.Fail(400, err)
+		return
+	}
+
+	if b.Description != "" {
+		snapshot.Description = b.Description
+	}
+
+	err = snapshotCollection.Add(snapshot)
+	if err != nil {
+		c.Fail(400, err)
+		return
+	}
+
+	c.JSON(201, snapshot)
+}
+
+// POST /api/snapshots
+func apiSnapshotsCreate(c *gin.Context) {
+	var (
+		err      error
+		snapshot *deb.Snapshot
+	)
+
+	var b struct {
+		Name            string `binding:"required"`
+		Description     string
+		SourceSnapshots []string
+		PackageRefs     []string
+	}
+
+	if !c.Bind(&b) {
+		return
+	}
+
+	if b.Description == "" {
+		if len(b.SourceSnapshots)+len(b.PackageRefs) == 0 {
+			b.Description = "Created as empty"
+		}
+	}
+
+	snapshotCollection := context.CollectionFactory().SnapshotCollection()
+	snapshotCollection.Lock()
+	defer snapshotCollection.Unlock()
+
+	sources := make([]*deb.Snapshot, len(b.SourceSnapshots))
+
+	for i := range b.SourceSnapshots {
+		sources[i], err = snapshotCollection.ByName(b.SourceSnapshots[i])
+		if err != nil {
+			c.Fail(404, err)
+			return
+		}
+
+		err = snapshotCollection.LoadComplete(sources[i])
+		if err != nil {
+			c.Fail(500, err)
+			return
+		}
+	}
+
+	list := deb.NewPackageList()
+
+	// verify package refs and build package list
+	for _, ref := range b.PackageRefs {
+		var p *deb.Package
+
+		p, err = context.CollectionFactory().PackageCollection().ByKey([]byte(ref))
+		if err != nil {
+			if err == database.ErrNotFound {
+				c.Fail(404, fmt.Errorf("package %s: %s", ref, err))
+			} else {
+				c.Fail(500, err)
+			}
+			return
+		}
+		err = list.Add(p)
+		if err != nil {
+			c.Fail(400, err)
+			return
+		}
+	}
+
+	snapshot = deb.NewSnapshotFromRefList(b.Name, sources, deb.NewPackageRefListFromPackageList(list), b.Description)
+
+	err = snapshotCollection.Add(snapshot)
+	if err != nil {
+		c.Fail(400, err)
+		return
+	}
+
+	c.JSON(201, snapshot)
+}
+
+// POST /api/repos/:name/snapshots
+func apiSnapshotsCreateFromRepository(c *gin.Context) {
+	var (
+		err      error
+		repo     *deb.LocalRepo
+		snapshot *deb.Snapshot
+	)
+
+	var b struct {
+		Name        string `binding:"required"`
+		Description string
+	}
+
+	if !c.Bind(&b) {
+		return
+	}
+
+	collection := context.CollectionFactory().LocalRepoCollection()
+	collection.RLock()
+	defer collection.RUnlock()
+
+	snapshotCollection := context.CollectionFactory().SnapshotCollection()
+	snapshotCollection.Lock()
+	defer snapshotCollection.Unlock()
+
+	repo, err = collection.ByName(c.Params.ByName("name"))
+	if err != nil {
+		c.Fail(404, err)
+		return
+	}
+
+	err = collection.LoadComplete(repo)
+	if err != nil {
+		c.Fail(500, err)
+		return
+	}
+
+	snapshot, err = deb.NewSnapshotFromLocalRepo(b.Name, repo)
+	if err != nil {
+		c.Fail(400, err)
+		return
+	}
+
+	if b.Description != "" {
+		snapshot.Description = b.Description
+	}
+
+	err = snapshotCollection.Add(snapshot)
+	if err != nil {
+		c.Fail(400, err)
+		return
+	}
+
+	c.JSON(201, snapshot)
+}
+
+// PUT /api/snapshots/:name
+func apiSnapshotsUpdate(c *gin.Context) {
+	var (
+		err      error
+		snapshot *deb.Snapshot
+	)
+
+	var b struct {
+		Name        string
+		Description string
+	}
+
+	if !c.Bind(&b) {
+		return
+	}
+
+	collection := context.CollectionFactory().SnapshotCollection()
+	collection.Lock()
+	defer collection.Unlock()
+
+	snapshot, err = collection.ByName(c.Params.ByName("name"))
+	if err != nil {
+		c.Fail(404, err)
+		return
+	}
+
+	_, err = collection.ByName(b.Name)
+	if err == nil {
+		c.Fail(409, fmt.Errorf("unable to rename: snapshot %s already exists", b.Name))
+		return
+	}
+
+	if b.Name != "" {
+		snapshot.Name = b.Name
+	}
+
+	if b.Description != "" {
+		snapshot.Description = b.Description
+	}
+
+	err = context.CollectionFactory().SnapshotCollection().Update(snapshot)
+	if err != nil {
+		c.Fail(500, err)
+		return
+	}
+
+	c.JSON(200, snapshot)
+}
+
+// GET /api/snapshots/:name
+func apiSnapshotsShow(c *gin.Context) {
+	collection := context.CollectionFactory().SnapshotCollection()
+	collection.RLock()
+	defer collection.RUnlock()
+
+	snapshot, err := collection.ByName(c.Params.ByName("name"))
+	if err != nil {
+		c.Fail(404, err)
+		return
+	}
+
+	err = collection.LoadComplete(snapshot)
+	if err != nil {
+		c.Fail(500, err)
+		return
+	}
+
+	c.JSON(200, snapshot)
+}
+
+// DELETE /api/snapshots/:name
+func apiSnapshotsDrop(c *gin.Context) {
+	name := c.Params.ByName("name")
+	force := c.Request.URL.Query().Get("force") == "1"
+
+	snapshotCollection := context.CollectionFactory().SnapshotCollection()
+	snapshotCollection.Lock()
+	defer snapshotCollection.Unlock()
+
+	publishedCollection := context.CollectionFactory().PublishedRepoCollection()
+	publishedCollection.RLock()
+	defer publishedCollection.RUnlock()
+
+	snapshot, err := snapshotCollection.ByName(name)
+	if err != nil {
+		c.Fail(404, err)
+		return
+	}
+
+	published := publishedCollection.BySnapshot(snapshot)
+
+	if len(published) > 0 {
+		c.Fail(409, fmt.Errorf("unable to drop: snapshot is published"))
+		return
+	}
+
+	if !force {
+		snapshots := snapshotCollection.BySnapshotSource(snapshot)
+		if len(snapshots) > 0 {
+			c.Fail(409, fmt.Errorf("won't delete snapshot that was used as source for other snapshots, use ?force=1 to override"))
+			return
+		}
+	}
+
+	err = snapshotCollection.Drop(snapshot)
+	if err != nil {
+		c.Fail(500, err)
+		return
+	}
+
+	c.JSON(200, gin.H{})
+}
+
+// GET /api/snapshots/:name/diff/:withSnapshot
+func apiSnapshotsDiff(c *gin.Context) {
+	onlyMatching := c.Request.URL.Query().Get("onlyMatching") == "1"
+
+	collection := context.CollectionFactory().SnapshotCollection()
+	collection.RLock()
+	defer collection.RUnlock()
+
+	snapshotA, err := collection.ByName(c.Params.ByName("name"))
+	if err != nil {
+		c.Fail(404, err)
+		return
+	}
+
+	snapshotB, err := collection.ByName(c.Params.ByName("withSnapshot"))
+	if err != nil {
+		c.Fail(404, err)
+		return
+	}
+
+	err = collection.LoadComplete(snapshotA)
+	if err != nil {
+		c.Fail(500, err)
+		return
+	}
+
+	err = collection.LoadComplete(snapshotB)
+	if err != nil {
+		c.Fail(500, err)
+		return
+	}
+
+	// Calculate diff
+	diff, err := snapshotA.RefList().Diff(snapshotB.RefList(), context.CollectionFactory().PackageCollection())
+	if err != nil {
+		c.Fail(500, err)
+		return
+	}
+
+	result := []deb.PackageDiff{}
+
+	for _, pdiff := range diff {
+		if onlyMatching && (pdiff.Left == nil || pdiff.Right == nil) {
+			continue
+		}
+
+		result = append(result, pdiff)
+	}
+
+	c.JSON(200, result)
+}
+
+// GET /api/snapshots/:name/packages
+func apiSnapshotsSearchPackages(c *gin.Context) {
+	collection := context.CollectionFactory().SnapshotCollection()
+	collection.RLock()
+	defer collection.RUnlock()
+
+	snapshot, err := collection.ByName(c.Params.ByName("name"))
+	if err != nil {
+		c.Fail(404, err)
+		return
+	}
+
+	err = collection.LoadComplete(snapshot)
+	if err != nil {
+		c.Fail(500, err)
+		return
+	}
+
+	showPackages(c, snapshot.RefList())
+}

aptly/interfaces.go

@@ -3,8 +3,9 @@
 package aptly
 
 import (
-	"github.com/smira/aptly/utils"
 	"io"
+
+	"github.com/smira/aptly/utils"
 )
 
 // PackagePool is asbtraction of package pool storage.
@@ -82,7 +83,7 @@ type Downloader interface {
 	// Download starts new download task
 	Download(url string, destination string, result chan<- error)
 	// DownloadWithChecksum starts new download task with checksum verification
-	DownloadWithChecksum(url string, destination string, result chan<- error, expected utils.ChecksumInfo, ignoreMismatch bool)
+	DownloadWithChecksum(url string, destination string, result chan<- error, expected utils.ChecksumInfo, ignoreMismatch bool, maxTries int)
 	// Pause pauses task processing
 	Pause()
 	// Resume resumes task processing
@@ -90,6 +91,8 @@ type Downloader interface {
 	// Shutdown stops downloader after current tasks are finished,
 	// but doesn't process rest of queue
 	Shutdown()
+	// Abort stops downloader without waiting for shutdown
+	Abort()
 	// GetProgress returns Progress object
 	GetProgress() Progress
 }

aptly/report.go

@@ -0,0 +1,67 @@
+package aptly
+
+import (
+	"fmt"
+)
+
+// ResultReporter is abstraction for result reporting from complex processing functions
+type ResultReporter interface {
+	// Warning is non-fatal error message
+	Warning(msg string, a ...interface{})
+	// Removed is signal that something has been removed
+	Removed(msg string, a ...interface{})
+	// Added is signal that something has been added
+	Added(msg string, a ...interface{})
+}
+
+// ConsoleResultReporter is implementation of ResultReporter that prints in colors to console
+type ConsoleResultReporter struct {
+	Progress Progress
+}
+
+// Check interface
+var (
+	_ ResultReporter = &ConsoleResultReporter{}
+)
+
+// Warning is non-fatal error message (yellow)
+func (c *ConsoleResultReporter) Warning(msg string, a ...interface{}) {
+	c.Progress.ColoredPrintf("@y[!]@| @!"+msg+"@|", a...)
+}
+
+// Removed is signal that something has been removed (red)
+func (c *ConsoleResultReporter) Removed(msg string, a ...interface{}) {
+	c.Progress.ColoredPrintf("@r[-]@| "+msg, a...)
+}
+
+// Added is signal that something has been added (green)
+func (c *ConsoleResultReporter) Added(msg string, a ...interface{}) {
+	c.Progress.ColoredPrintf("@g[+]@| "+msg, a...)
+}
+
+// RecordingResultReporter is implementation of ResultReporter that collects all messages
+type RecordingResultReporter struct {
+	Warnings     []string
+	AddedLines   []string `json:"Added"`
+	RemovedLines []string `json:"Removed"`
+}
+
+// Check interface
+var (
+	_ ResultReporter = &RecordingResultReporter{}
+)
+
+// Warning is non-fatal error message
+func (r *RecordingResultReporter) Warning(msg string, a ...interface{}) {
+	r.Warnings = append(r.Warnings, fmt.Sprintf(msg, a...))
+}
+
+// Removed is signal that something has been removed
+func (r *RecordingResultReporter) Removed(msg string, a ...interface{}) {
+	r.RemovedLines = append(r.RemovedLines, fmt.Sprintf(msg, a...))
+}
+
+// Added is signal that something has been added
+func (r *RecordingResultReporter) Added(msg string, a ...interface{}) {
+	r.AddedLines = append(r.AddedLines, fmt.Sprintf(msg, a...))
+}

aptly/version.go

@@ -1,7 +1,7 @@
 package aptly
 
-// Version of aptly
-const Version = "0.7.1"
+// Version of aptly (filled in at link time)
+var Version string
 
-// Enable debugging features?
+// EnableDebug triggers some debugging features
 const EnableDebug = false

cmd/api.go

@@ -0,0 +1,15 @@
+package cmd
+
+import (
+	"github.com/smira/commander"
+)
+
+func makeCmdAPI() *commander.Command {
+	return &commander.Command{
+		UsageLine: "api",
+		Short:     "start API server/issue requests",
+		Subcommands: []*commander.Command{
+			makeCmdAPIServe(),
+		},
+	}
+}

cmd/api_serve.go

@@ -0,0 +1,106 @@
+package cmd
+
+import (
+	"fmt"
+	"net"
+	"net/http"
+	"net/url"
+	"os"
+
+	"github.com/smira/aptly/api"
+	"github.com/smira/aptly/systemd/activation"
+	"github.com/smira/aptly/utils"
+	"github.com/smira/commander"
+	"github.com/smira/flag"
+)
+
+func aptlyAPIServe(cmd *commander.Command, args []string) error {
+	var (
+		err error
+	)
+
+	if len(args) != 0 {
+		cmd.Usage()
+		return commander.ErrCommandError
+	}
+
+	// There are only two working options for aptly's rootDir:
+	//   1. rootDir does not exist, then we'll create it
+	//   2. rootDir exists and is writable
+	// anything else must fail.
+	// E.g.: Running the service under a different user may lead to a rootDir
+	// that exists but is not usable due to access permissions.
+	err = utils.DirIsAccessible(context.Config().RootDir)
+	if err != nil {
+		return err
+	}
+
+	// Try to recycle systemd fds for listening
+	listeners, err := activation.Listeners(true)
+	if len(listeners) > 1 {
+		panic("Got more than 1 listener from systemd. This is currently not supported!")
+	}
+	if err == nil && len(listeners) == 1 {
+		listener := listeners[0]
+		defer listener.Close()
+		fmt.Printf("\nTaking over web server at: %s (press Ctrl+C to quit)...\n", listener.Addr().String())
+		err = http.Serve(listener, api.Router(context))
+		if err != nil {
+			return fmt.Errorf("unable to serve: %s", err)
+		}
+		return nil
+	}
+
+	// If there are none: use the listen argument.
+	listen := context.Flags().Lookup("listen").Value.String()
+	fmt.Printf("\nStarting web server at: %s (press Ctrl+C to quit)...\n", listen)
+
+	listenURL, err := url.Parse(listen)
+	if err == nil && listenURL.Scheme == "unix" {
+		file := listenURL.Path
+		os.Remove(file)
+		listener, err := net.Listen("unix", file)
+		if err != nil {
+			return fmt.Errorf("failed to listen on: %s\n%s", file, err)
+		}
+		defer listener.Close()
+		err = http.Serve(listener, api.Router(context))
+		if err != nil {
+			return fmt.Errorf("unable to serve: %s", err)
+		}
+		return nil
+	}
+
+	err = http.ListenAndServe(listen, api.Router(context))
+	if err != nil {
+		return fmt.Errorf("unable to serve: %s", err)
+	}
+
+	return err
+}
+
+func makeCmdAPIServe() *commander.Command {
+	cmd := &commander.Command{
+		Run:       aptlyAPIServe,
+		UsageLine: "serve",
+		Short:     "start API HTTP service",
+		Long: `
+Start HTTP server with aptly REST API. The server can listen to either a port
+or Unix domain socket. When using a socket, Aptly will fully manage the socket
+file. This command also supports taking over from a systemd file descriptors to
+enable systemd socket activation.
+
+Example:
+
+  $ aptly api serve -listen=:8080
+  $ aptly api serve -listen=unix:///tmp/aptly.sock
+`,
+		Flag: *flag.NewFlagSet("aptly-serve", flag.ExitOnError),
+	}
+
+	cmd.Flag.String("listen", ":8080", "host:port for HTTP listening or unix://path to listen on a Unix domain socket")
+	cmd.Flag.Bool("no-lock", false, "don't lock the database")
+
+	return cmd
+
+}

cmd/cmd.go

@@ -2,13 +2,16 @@
 package cmd
 
 import (
+	"bytes"
 	"fmt"
+	"os"
+	"text/template"
+	"time"
+
 	"github.com/smira/aptly/aptly"
 	"github.com/smira/aptly/deb"
 	"github.com/smira/commander"
 	"github.com/smira/flag"
-	"os"
-	"time"
 )
 
 // ListPackagesRefList shows list of packages in PackageRefList
@@ -34,6 +37,44 @@ func ListPackagesRefList(reflist *deb.PackageRefList) (err error) {
 	return
 }
 
+// PrintPackageList shows package list with specified format or default representation
+func PrintPackageList(result *deb.PackageList, format string) error {
+	if format == "" {
+		return result.ForEach(func(p *deb.Package) error {
+			context.Progress().Printf("%s\n", p)
+			return nil
+		})
+	}
+
+	formatTemplate, err := template.New("format").Parse(format)
+	if err != nil {
+		return fmt.Errorf("error parsing -format template: %s", err)
+	}
+
+	return result.ForEach(func(p *deb.Package) error {
+		b := &bytes.Buffer{}
+		err = formatTemplate.Execute(b, p.ExtendedStanza())
+		if err != nil {
+			return fmt.Errorf("error applying template: %s", err)
+		}
+		context.Progress().Printf("%s\n", b.String())
+		return nil
+	})
+
+}
+
+// LookupOption checks boolean flag with default (usually config) and command-line
+// setting
+func LookupOption(defaultValue bool, flags *flag.FlagSet, name string) (result bool) {
+	result = defaultValue
+
+	if flags.IsSet(name) {
+		result = flags.Lookup(name).Value.Get().(bool)
+	}
+
+	return
+}
+
 // RootCommand creates root command in command tree
 func RootCommand() *commander.Command {
 	cmd := &commander.Command{
@@ -46,28 +87,32 @@ upgrade individual packages, take snapshots and publish them
 back as Debian repositories.
 
 aptly's goal is to establish repeatability and controlled changes
-in a package-centric environment. aptly allows to fix a set of packages
+in a package-centric environment. aptly allows one to fix a set of packages
 in a repository, so that package installation and upgrade becomes
-deterministic. At the same time aptly allows to perform controlled,
+deterministic. At the same time aptly allows one to perform controlled,
 fine-grained changes in repository contents to transition your
 package environment to new version.`,
 		Flag: *flag.NewFlagSet("aptly", flag.ExitOnError),
 		Subcommands: []*commander.Command{
+			makeCmdConfig(),
 			makeCmdDb(),
 			makeCmdGraph(),
 			makeCmdMirror(),
 			makeCmdRepo(),
 			makeCmdServe(),
 			makeCmdSnapshot(),
+			makeCmdTask(),
 			makeCmdPublish(),
 			makeCmdVersion(),
+			makeCmdPackage(),
+			makeCmdAPI(),
 		},
 	}
 
 	cmd.Flag.Bool("dep-follow-suggests", false, "when processing dependencies, follow Suggests")
 	cmd.Flag.Bool("dep-follow-source", false, "when processing dependencies, follow from binary to Source packages")
 	cmd.Flag.Bool("dep-follow-recommends", false, "when processing dependencies, follow Recommends")
-	cmd.Flag.Bool("dep-follow-all-variants", false, "when processing dependencies, follow a & b if depdency is 'a|b'")
+	cmd.Flag.Bool("dep-follow-all-variants", false, "when processing dependencies, follow a & b if dependency is 'a|b'")
 	cmd.Flag.String("architectures", "", "list of architectures to consider during (comma-separated), default to all available")
 	cmd.Flag.String("config", "", "location of configuration file (default locations are /etc/aptly.conf, ~/.aptly.conf)")
 

cmd/config.go

@@ -0,0 +1,15 @@
+package cmd
+
+import (
+	"github.com/smira/commander"
+)
+
+func makeCmdConfig() *commander.Command {
+	return &commander.Command{
+		UsageLine: "config",
+		Short:     "manage aptly configuration",
+		Subcommands: []*commander.Command{
+			makeCmdConfigShow(),
+		},
+	}
+}

cmd/config_show.go

@@ -0,0 +1,39 @@
+package cmd
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"github.com/smira/commander"
+)
+
+func aptlyConfigShow(cmd *commander.Command, args []string) error {
+
+	config := context.Config()
+	prettyJSON, err := json.MarshalIndent(config, "", "    ")
+
+	if err != nil {
+		return fmt.Errorf("unable to dump the config file: %s", err)
+	}
+
+	fmt.Println(string(prettyJSON))
+
+	return nil
+}
+
+func makeCmdConfigShow() *commander.Command {
+	cmd := &commander.Command{
+		Run:       aptlyConfigShow,
+		UsageLine: "show",
+		Short:     "show current aptly's config",
+		Long: `
+Command show displays the current aptly configuration.
+
+Example:
+
+  $ aptly config show
+
+`,
+	}
+	return cmd
+}

cmd/context.go

@@ -1,321 +1,31 @@
 package cmd
 
 import (
-	"fmt"
-	"github.com/smira/aptly/aptly"
-	"github.com/smira/aptly/console"
-	"github.com/smira/aptly/database"
-	"github.com/smira/aptly/deb"
-	"github.com/smira/aptly/files"
-	"github.com/smira/aptly/http"
-	"github.com/smira/aptly/s3"
-	"github.com/smira/aptly/utils"
-	"github.com/smira/commander"
+	ctx "github.com/smira/aptly/context"
 	"github.com/smira/flag"
-	"os"
-	"path/filepath"
-	"runtime"
-	"runtime/pprof"
-	"strings"
-	"time"
 )
 
-// AptlyContext is a common context shared by all commands
-type AptlyContext struct {
-	flags        *flag.FlagSet
-	configLoaded bool
-
-	progress          aptly.Progress
-	downloader        aptly.Downloader
-	database          database.Storage
-	packagePool       aptly.PackagePool
-	publishedStorages map[string]aptly.PublishedStorage
-	collectionFactory *deb.CollectionFactory
-	dependencyOptions int
-	architecturesList []string
-	// Debug features
-	fileCPUProfile *os.File
-	fileMemProfile *os.File
-	fileMemStats   *os.File
-}
-
-var context *AptlyContext
-
-// Check interface
-var _ aptly.PublishedStorageProvider = &AptlyContext{}
-
-// FatalError is type for panicking to abort execution with non-zero
-// exit code and print meaningful explanation
-type FatalError struct {
-	ReturnCode int
-	Message    string
-}
-
-// Fatal panics and aborts execution with exit code 1
-func Fatal(err error) {
-	returnCode := 1
-	if err == commander.ErrFlagError || err == commander.ErrCommandError {
-		returnCode = 2
-	}
-	panic(&FatalError{ReturnCode: returnCode, Message: err.Error()})
-}
-
-// Config loads and returns current configuration
-func (context *AptlyContext) Config() *utils.ConfigStructure {
-	if !context.configLoaded {
-		var err error
-
-		configLocation := context.flags.Lookup("config").Value.String()
-		if configLocation != "" {
-			err = utils.LoadConfig(configLocation, &utils.Config)
-
-			if err != nil {
-				Fatal(err)
-			}
-		} else {
-			configLocations := []string{
-				filepath.Join(os.Getenv("HOME"), ".aptly.conf"),
-				"/etc/aptly.conf",
-			}
-
-			for _, configLocation := range configLocations {
-				err = utils.LoadConfig(configLocation, &utils.Config)
-				if err == nil {
-					break
-				}
-				if !os.IsNotExist(err) {
-					Fatal(fmt.Errorf("error loading config file %s: %s", configLocation, err))
-				}
-			}
-
-			if err != nil {
-				fmt.Printf("Config file not found, creating default config at %s\n\n", configLocations[0])
-				utils.SaveConfig(configLocations[0], &utils.Config)
-			}
-		}
-
-		context.configLoaded = true
-
-	}
-	return &utils.Config
-}
-
-// DependencyOptions calculates options related to dependecy handling
-func (context *AptlyContext) DependencyOptions() int {
-	if context.dependencyOptions == -1 {
-		context.dependencyOptions = 0
-		if context.Config().DepFollowSuggests || context.flags.Lookup("dep-follow-suggests").Value.Get().(bool) {
-			context.dependencyOptions |= deb.DepFollowSuggests
-		}
-		if context.Config().DepFollowRecommends || context.flags.Lookup("dep-follow-recommends").Value.Get().(bool) {
-			context.dependencyOptions |= deb.DepFollowRecommends
-		}
-		if context.Config().DepFollowAllVariants || context.flags.Lookup("dep-follow-all-variants").Value.Get().(bool) {
-			context.dependencyOptions |= deb.DepFollowAllVariants
-		}
-		if context.Config().DepFollowSource || context.flags.Lookup("dep-follow-source").Value.Get().(bool) {
-			context.dependencyOptions |= deb.DepFollowSource
-		}
-	}
-
-	return context.dependencyOptions
-}
-
-// ArchitecturesList returns list of architectures fixed via command line or config
-func (context *AptlyContext) ArchitecturesList() []string {
-	if context.architecturesList == nil {
-		context.architecturesList = context.Config().Architectures
-		optionArchitectures := context.flags.Lookup("architectures").Value.String()
-		if optionArchitectures != "" {
-			context.architecturesList = strings.Split(optionArchitectures, ",")
-		}
-	}
-
-	return context.architecturesList
-}
-
-// Progress creates or returns Progress object
-func (context *AptlyContext) Progress() aptly.Progress {
-	if context.progress == nil {
-		context.progress = console.NewProgress()
-		context.progress.Start()
-	}
-
-	return context.progress
-}
-
-// Downloader returns instance of current downloader
-func (context *AptlyContext) Downloader() aptly.Downloader {
-	if context.downloader == nil {
-		var downloadLimit int64
-		limitFlag := context.flags.Lookup("download-limit")
-		if limitFlag != nil {
-			downloadLimit = limitFlag.Value.Get().(int64)
-		}
-		if downloadLimit == 0 {
-			downloadLimit = context.Config().DownloadLimit
-		}
-		context.downloader = http.NewDownloader(context.Config().DownloadConcurrency,
-			downloadLimit*1024, context.Progress())
-	}
-
-	return context.downloader
-}
-
-// DBPath builds path to database
-func (context *AptlyContext) DBPath() string {
-	return filepath.Join(context.Config().RootDir, "db")
-}
-
-// Database opens and returns current instance of database
-func (context *AptlyContext) Database() (database.Storage, error) {
-	if context.database == nil {
-		var err error
-
-		context.database, err = database.OpenDB(context.DBPath())
-		if err != nil {
-			return nil, fmt.Errorf("can't open database: %s", err)
-		}
-	}
-
-	return context.database, nil
-}
-
-// CollectionFactory builds factory producing all kinds of collections
-func (context *AptlyContext) CollectionFactory() *deb.CollectionFactory {
-	if context.collectionFactory == nil {
-		db, err := context.Database()
-		if err != nil {
-			Fatal(err)
-		}
-		context.collectionFactory = deb.NewCollectionFactory(db)
-	}
-
-	return context.collectionFactory
-}
-
-// PackagePool returns instance of PackagePool
-func (context *AptlyContext) PackagePool() aptly.PackagePool {
-	if context.packagePool == nil {
-		context.packagePool = files.NewPackagePool(context.Config().RootDir)
-	}
-
-	return context.packagePool
-}
-
-// PublishedStorage returns instance of PublishedStorage
-func (context *AptlyContext) GetPublishedStorage(name string) aptly.PublishedStorage {
-	publishedStorage, ok := context.publishedStorages[name]
-	if !ok {
-		if name == "" {
-			publishedStorage = files.NewPublishedStorage(context.Config().RootDir)
-		} else if strings.HasPrefix(name, "s3:") {
-			params, ok := context.Config().S3PublishRoots[name[3:]]
-			if !ok {
-				Fatal(fmt.Errorf("published S3 storage %v not configured", name[3:]))
-			}
-
-			var err error
-			publishedStorage, err = s3.NewPublishedStorage(params.AccessKeyID, params.SecretAccessKey,
-				params.Region, params.Bucket, params.ACL, params.Prefix)
-			if err != nil {
-				Fatal(err)
-			}
-		} else {
-			Fatal(fmt.Errorf("unknown published storage format: %v", name))
-		}
-		context.publishedStorages[name] = publishedStorage
-	}
-
-	return publishedStorage
-}
+var context *ctx.AptlyContext
 
 // ShutdownContext shuts context down
 func ShutdownContext() {
-	if aptly.EnableDebug {
-		if context.fileMemProfile != nil {
-			pprof.WriteHeapProfile(context.fileMemProfile)
-			context.fileMemProfile.Close()
-			context.fileMemProfile = nil
-		}
-		if context.fileCPUProfile != nil {
-			pprof.StopCPUProfile()
-			context.fileCPUProfile.Close()
-			context.fileCPUProfile = nil
-		}
-		if context.fileMemProfile != nil {
-			context.fileMemProfile.Close()
-			context.fileMemProfile = nil
-		}
-	}
-	if context.database != nil {
-		context.database.Close()
-	}
-	if context.downloader != nil {
-		context.downloader.Shutdown()
-	}
-	if context.progress != nil {
-		context.progress.Shutdown()
-	}
+	context.Shutdown()
+}
+
+// CleanupContext does partial shutdown of context
+func CleanupContext() {
+	context.Cleanup()
 }
 
 // InitContext initializes context with default settings
 func InitContext(flags *flag.FlagSet) error {
 	var err error
 
-	context = &AptlyContext{
-		flags:             flags,
-		dependencyOptions: -1,
-		publishedStorages: map[string]aptly.PublishedStorage{},
+	if context != nil {
+		panic("context already initialized")
 	}
 
-	if aptly.EnableDebug {
-		cpuprofile := flags.Lookup("cpuprofile").Value.String()
-		if cpuprofile != "" {
-			context.fileCPUProfile, err = os.Create(cpuprofile)
-			if err != nil {
-				return err
-			}
-			pprof.StartCPUProfile(context.fileCPUProfile)
-		}
+	context, err = ctx.NewContext(flags)
 
-		memprofile := flags.Lookup("memprofile").Value.String()
-		if memprofile != "" {
-			context.fileMemProfile, err = os.Create(memprofile)
-			if err != nil {
-				return err
-			}
-		}
-
-		memstats := flags.Lookup("memstats").Value.String()
-		if memstats != "" {
-			interval := flags.Lookup("meminterval").Value.Get().(time.Duration)
-
-			context.fileMemStats, err = os.Create(memstats)
-			if err != nil {
-				return err
-			}
-
-			context.fileMemStats.WriteString("# Time\tHeapSys\tHeapAlloc\tHeapIdle\tHeapReleased\n")
-
-			go func() {
-				var stats runtime.MemStats
-
-				start := time.Now().UnixNano()
-
-				for {
-					runtime.ReadMemStats(&stats)
-					if context.fileMemStats != nil {
-						context.fileMemStats.WriteString(fmt.Sprintf("%d\t%d\t%d\t%d\t%d\n",
-							(time.Now().UnixNano()-start)/1000000, stats.HeapSys, stats.HeapAlloc, stats.HeapIdle, stats.HeapReleased))
-						time.Sleep(interval)
-					} else {
-						break
-					}
-				}
-			}()
-		}
-	}
-
-	return nil
+	return err
 }

cmd/db_cleanup.go

@@ -2,10 +2,12 @@ package cmd
 
 import (
 	"fmt"
+	"sort"
+	"strings"
+
 	"github.com/smira/aptly/deb"
 	"github.com/smira/aptly/utils"
 	"github.com/smira/commander"
-	"sort"
 )
 
 // aptly db cleanup
@@ -17,31 +19,98 @@ func aptlyDbCleanup(cmd *commander.Command, args []string) error {
 		return commander.ErrCommandError
 	}
 
+	verbose := context.Flags().Lookup("verbose").Value.Get().(bool)
+	dryRun := context.Flags().Lookup("dry-run").Value.Get().(bool)
+
 	// collect information about references packages...
 	existingPackageRefs := deb.NewPackageRefList()
 
-	context.Progress().Printf("Loading mirrors, local repos and snapshots...\n")
+	// used only in verbose mode to report package use source
+	packageRefSources := map[string][]string{}
+
+	context.Progress().ColoredPrintf("@{w!}Loading mirrors, local repos, snapshots and published repos...@|")
+	if verbose {
+		context.Progress().ColoredPrintf("@{y}Loading mirrors:@|")
+	}
 	err = context.CollectionFactory().RemoteRepoCollection().ForEach(func(repo *deb.RemoteRepo) error {
+		if verbose {
+			context.Progress().ColoredPrintf("- @{g}%s@|", repo.Name)
+		}
+
 		err := context.CollectionFactory().RemoteRepoCollection().LoadComplete(repo)
 		if err != nil {
 			return err
 		}
 		if repo.RefList() != nil {
-			existingPackageRefs = existingPackageRefs.Merge(repo.RefList(), false)
+			existingPackageRefs = existingPackageRefs.Merge(repo.RefList(), false, true)
+
+			if verbose {
+				description := fmt.Sprintf("mirror %s", repo.Name)
+				repo.RefList().ForEach(func(key []byte) error {
+					packageRefSources[string(key)] = append(packageRefSources[string(key)], description)
+					return nil
+				})
+			}
 		}
+
 		return nil
 	})
 	if err != nil {
 		return err
 	}
 
+	if verbose {
+		context.Progress().ColoredPrintf("@{y}Loading local repos:@|")
+	}
 	err = context.CollectionFactory().LocalRepoCollection().ForEach(func(repo *deb.LocalRepo) error {
+		if verbose {
+			context.Progress().ColoredPrintf("- @{g}%s@|", repo.Name)
+		}
+
 		err := context.CollectionFactory().LocalRepoCollection().LoadComplete(repo)
 		if err != nil {
 			return err
 		}
+
 		if repo.RefList() != nil {
-			existingPackageRefs = existingPackageRefs.Merge(repo.RefList(), false)
+			existingPackageRefs = existingPackageRefs.Merge(repo.RefList(), false, true)
+
+			if verbose {
+				description := fmt.Sprintf("local repo %s", repo.Name)
+				repo.RefList().ForEach(func(key []byte) error {
+					packageRefSources[string(key)] = append(packageRefSources[string(key)], description)
+					return nil
+				})
+			}
+		}
+
+		return nil
+	})
+	if err != nil {
+		return err
+	}
+
+	if verbose {
+		context.Progress().ColoredPrintf("@{y}Loading snapshots:@|")
+	}
+	err = context.CollectionFactory().SnapshotCollection().ForEach(func(snapshot *deb.Snapshot) error {
+		if verbose {
+			context.Progress().ColoredPrintf("- @{g}%s@|", snapshot.Name)
+		}
+
+		err := context.CollectionFactory().SnapshotCollection().LoadComplete(snapshot)
+		if err != nil {
+			return err
+		}
+
+		existingPackageRefs = existingPackageRefs.Merge(snapshot.RefList(), false, true)
+
+		if verbose {
+			description := fmt.Sprintf("snapshot %s", snapshot.Name)
+			snapshot.RefList().ForEach(func(key []byte) error {
+				packageRefSources[string(key)] = append(packageRefSources[string(key)], description)
+				return nil
+			})
 		}
 		return nil
 	})
@@ -49,12 +118,32 @@ func aptlyDbCleanup(cmd *commander.Command, args []string) error {
 		return err
 	}
 
-	err = context.CollectionFactory().SnapshotCollection().ForEach(func(snapshot *deb.Snapshot) error {
-		err := context.CollectionFactory().SnapshotCollection().LoadComplete(snapshot)
+	if verbose {
+		context.Progress().ColoredPrintf("@{y}Loading published repositories:@|")
+	}
+	err = context.CollectionFactory().PublishedRepoCollection().ForEach(func(published *deb.PublishedRepo) error {
+		if verbose {
+			context.Progress().ColoredPrintf("- @{g}%s:%s/%s{|}", published.Storage, published.Prefix, published.Distribution)
+		}
+		if published.SourceKind != "local" {
+			return nil
+		}
+		err := context.CollectionFactory().PublishedRepoCollection().LoadComplete(published, context.CollectionFactory())
 		if err != nil {
 			return err
 		}
-		existingPackageRefs = existingPackageRefs.Merge(snapshot.RefList(), false)
+
+		for _, component := range published.Components() {
+			existingPackageRefs = existingPackageRefs.Merge(published.RefList(component), false, true)
+			if verbose {
+				description := fmt.Sprintf("published repository %s:%s/%s component %s",
+					published.Storage, published.Prefix, published.Distribution, component)
+				published.RefList(component).ForEach(func(key []byte) error {
+					packageRefSources[string(key)] = append(packageRefSources[string(key)], description)
+					return nil
+				})
+			}
+		}
 		return nil
 	})
 	if err != nil {
@@ -62,38 +151,65 @@ func aptlyDbCleanup(cmd *commander.Command, args []string) error {
 	}
 
 	// ... and compare it to the list of all packages
-	context.Progress().Printf("Loading list of all packages...\n")
+	context.Progress().ColoredPrintf("@{w!}Loading list of all packages...@|")
 	allPackageRefs := context.CollectionFactory().PackageCollection().AllPackageRefs()
 
-	toDelete := allPackageRefs.Substract(existingPackageRefs)
+	toDelete := allPackageRefs.Subtract(existingPackageRefs)
 
 	// delete packages that are no longer referenced
-	context.Progress().Printf("Deleting unreferenced packages (%d)...\n", toDelete.Len())
+	context.Progress().ColoredPrintf("@{r!}Deleting unreferenced packages (%d)...@|", toDelete.Len())
 
 	// database can't err as collection factory already constructed
 	db, _ := context.Database()
-	db.StartBatch()
-	err = toDelete.ForEach(func(ref []byte) error {
-		return context.CollectionFactory().PackageCollection().DeleteByKey(ref)
-	})
-	if err != nil {
-		return err
-	}
 
-	err = db.FinishBatch()
-	if err != nil {
-		return fmt.Errorf("unable to write to DB: %s", err)
+	if toDelete.Len() > 0 {
+		if verbose {
+			context.Progress().ColoredPrintf("@{r}List of package keys to delete:@|")
+			err = toDelete.ForEach(func(ref []byte) error {
+				context.Progress().ColoredPrintf(" - @{r}%s@|", string(ref))
+				return nil
+			})
+			if err != nil {
+				return err
+			}
+		}
+
+		if !dryRun {
+			db.StartBatch()
+			err = toDelete.ForEach(func(ref []byte) error {
+				return context.CollectionFactory().PackageCollection().DeleteByKey(ref)
+			})
+			if err != nil {
+				return err
+			}
+
+			err = db.FinishBatch()
+			if err != nil {
+				return fmt.Errorf("unable to write to DB: %s", err)
+			}
+		} else {
+			context.Progress().ColoredPrintf("@{y!}Skipped deletion, as -dry-run has been requested.@|")
+		}
 	}
 
 	// now, build a list of files that should be present in Repository (package pool)
-	context.Progress().Printf("Building list of files referenced by packages...\n")
+	context.Progress().ColoredPrintf("@{w!}Building list of files referenced by packages...@|")
 	referencedFiles := make([]string, 0, existingPackageRefs.Len())
 	context.Progress().InitBar(int64(existingPackageRefs.Len()), false)
 
 	err = existingPackageRefs.ForEach(func(key []byte) error {
 		pkg, err2 := context.CollectionFactory().PackageCollection().ByKey(key)
 		if err2 != nil {
-			return err2
+			tail := ""
+			if verbose {
+				tail = fmt.Sprintf(" (sources: %s)", strings.Join(packageRefSources[string(key)], ", "))
+			}
+			if dryRun {
+				context.Progress().ColoredPrintf("@{r!}Unresolvable package reference, skipping (-dry-run): %s: %s%s",
+					string(key), err2, tail)
+				return nil
+			}
+			return fmt.Errorf("unable to load package %s: %s%s", string(key), err2, tail)
 		}
 		paths, err2 := pkg.FilepathList(context.PackagePool())
 		if err2 != nil {
@@ -112,7 +228,7 @@ func aptlyDbCleanup(cmd *commander.Command, args []string) error {
 	context.Progress().ShutdownBar()
 
 	// build a list of files in the package pool
-	context.Progress().Printf("Building list of files in package pool...\n")
+	context.Progress().ColoredPrintf("@{w!}Building list of files in package pool...@|")
 	existingFiles, err := context.PackagePool().FilepathList(context.Progress())
 	if err != nil {
 		return fmt.Errorf("unable to collect file paths: %s", err)
@@ -122,28 +238,43 @@ func aptlyDbCleanup(cmd *commander.Command, args []string) error {
 	filesToDelete := utils.StrSlicesSubstract(existingFiles, referencedFiles)
 
 	// delete files that are no longer referenced
-	context.Progress().Printf("Deleting unreferenced files (%d)...\n", len(filesToDelete))
+	context.Progress().ColoredPrintf("@{r!}Deleting unreferenced files (%d)...@|", len(filesToDelete))
 
 	if len(filesToDelete) > 0 {
-		context.Progress().InitBar(int64(len(filesToDelete)), false)
-
-		var size, totalSize int64
-		for _, file := range filesToDelete {
-			size, err = context.PackagePool().Remove(file)
-			if err != nil {
-				return err
+		if verbose {
+			context.Progress().ColoredPrintf("@{r}List of files to be deleted:@|")
+			for _, file := range filesToDelete {
+				context.Progress().ColoredPrintf(" - @{r}%s@|", file)
 			}
-
-			context.Progress().AddBar(1)
-			totalSize += size
 		}
-		context.Progress().ShutdownBar()
 
-		context.Progress().Printf("Disk space freed: %s...\n", utils.HumanBytes(totalSize))
+		if !dryRun {
+			context.Progress().InitBar(int64(len(filesToDelete)), false)
+
+			var size, totalSize int64
+			for _, file := range filesToDelete {
+				size, err = context.PackagePool().Remove(file)
+				if err != nil {
+					return err
+				}
+
+				context.Progress().AddBar(1)
+				totalSize += size
+			}
+			context.Progress().ShutdownBar()
+
+			context.Progress().ColoredPrintf("@{w!}Disk space freed: %s...@|", utils.HumanBytes(totalSize))
+		} else {
+			context.Progress().ColoredPrintf("@{y!}Skipped file deletion, as -dry-run has been requested.@|")
+		}
 	}
 
-	context.Progress().Printf("Compacting database...\n")
-	err = db.CompactDB()
+	if !dryRun {
+		context.Progress().ColoredPrintf("@{w!}Compacting database...@|")
+		err = db.CompactDB()
+	} else {
+		context.Progress().ColoredPrintf("@{y!}Skipped DB compaction, as -dry-run has been requested.@|")
+	}
 
 	return err
 }
@@ -163,5 +294,8 @@ Example:
 `,
 	}
 
+	cmd.Flag.Bool("verbose", false, "be verbose when loading objects/removing them")
+	cmd.Flag.Bool("dry-run", false, "don't delete anything")
+
 	return cmd
 }

cmd/graph.go

@@ -2,15 +2,19 @@ package cmd
 
 import (
 	"bytes"
-	"code.google.com/p/gographviz"
 	"fmt"
-	"github.com/smira/aptly/deb"
-	"github.com/smira/commander"
 	"io"
 	"io/ioutil"
 	"os"
 	"os/exec"
+	"path/filepath"
+	"runtime"
 	"strings"
+	"time"
+
+	"github.com/smira/aptly/deb"
+	"github.com/smira/aptly/utils"
+	"github.com/smira/commander"
 )
 
 func aptlyGraph(cmd *commander.Command, args []string) error {
@@ -21,121 +25,14 @@ func aptlyGraph(cmd *commander.Command, args []string) error {
 		return commander.ErrCommandError
 	}
 
-	graph := gographviz.NewEscape()
-	graph.SetDir(true)
-	graph.SetName("aptly")
-
-	existingNodes := map[string]bool{}
-
-	fmt.Printf("Loading mirrors...\n")
-
-	err = context.CollectionFactory().RemoteRepoCollection().ForEach(func(repo *deb.RemoteRepo) error {
-		err := context.CollectionFactory().RemoteRepoCollection().LoadComplete(repo)
-		if err != nil {
-			return err
-		}
-
-		graph.AddNode("aptly", repo.UUID, map[string]string{
-			"shape":     "Mrecord",
-			"style":     "filled",
-			"fillcolor": "darkgoldenrod1",
-			"label": fmt.Sprintf("{Mirror %s|url: %s|dist: %s|comp: %s|arch: %s|pkgs: %d}",
-				repo.Name, repo.ArchiveRoot, repo.Distribution, strings.Join(repo.Components, ", "),
-				strings.Join(repo.Architectures, ", "), repo.NumPackages()),
-		})
-		existingNodes[repo.UUID] = true
-		return nil
-	})
-
-	if err != nil {
-		return err
-	}
-
-	fmt.Printf("Loading local repos...\n")
-
-	err = context.CollectionFactory().LocalRepoCollection().ForEach(func(repo *deb.LocalRepo) error {
-		err := context.CollectionFactory().LocalRepoCollection().LoadComplete(repo)
-		if err != nil {
-			return err
-		}
-
-		graph.AddNode("aptly", repo.UUID, map[string]string{
-			"shape":     "Mrecord",
-			"style":     "filled",
-			"fillcolor": "mediumseagreen",
-			"label": fmt.Sprintf("{Repo %s|comment: %s|pkgs: %d}",
-				repo.Name, repo.Comment, repo.NumPackages()),
-		})
-		existingNodes[repo.UUID] = true
-		return nil
-	})
-
-	if err != nil {
-		return err
-	}
-
-	fmt.Printf("Loading snapshots...\n")
-
-	context.CollectionFactory().SnapshotCollection().ForEach(func(snapshot *deb.Snapshot) error {
-		existingNodes[snapshot.UUID] = true
-		return nil
-	})
-
-	err = context.CollectionFactory().SnapshotCollection().ForEach(func(snapshot *deb.Snapshot) error {
-		err := context.CollectionFactory().SnapshotCollection().LoadComplete(snapshot)
-		if err != nil {
-			return err
-		}
-
-		description := snapshot.Description
-		if snapshot.SourceKind == "repo" {
-			description = "Snapshot from repo"
-		}
-
-		graph.AddNode("aptly", snapshot.UUID, map[string]string{
-			"shape":     "Mrecord",
-			"style":     "filled",
-			"fillcolor": "cadetblue1",
-			"label":     fmt.Sprintf("{Snapshot %s|%s|pkgs: %d}", snapshot.Name, description, snapshot.NumPackages()),
-		})
-
-		if snapshot.SourceKind == "repo" || snapshot.SourceKind == "local" || snapshot.SourceKind == "snapshot" {
-			for _, uuid := range snapshot.SourceIDs {
-				_, exists := existingNodes[uuid]
-				if exists {
-					graph.AddEdge(uuid, snapshot.UUID, true, nil)
-				}
-			}
-		}
-		return nil
-	})
-
-	if err != nil {
-		return err
-	}
-
-	fmt.Printf("Loading published repos...\n")
-
-	context.CollectionFactory().PublishedRepoCollection().ForEach(func(repo *deb.PublishedRepo) error {
-		graph.AddNode("aptly", repo.UUID, map[string]string{
-			"shape":     "Mrecord",
-			"style":     "filled",
-			"fillcolor": "darkolivegreen1",
-			"label": fmt.Sprintf("{Published %s/%s|comp: %s|arch: %s}", repo.Prefix, repo.Distribution,
-				strings.Join(repo.Components(), " "), strings.Join(repo.Architectures, ", ")),
-		})
-
-		for _, uuid := range repo.Sources {
-			_, exists := existingNodes[uuid]
-			if exists {
-				graph.AddEdge(uuid, repo.UUID, true, nil)
-			}
-		}
-
-		return nil
-	})
+	layout := context.Flags().Lookup("layout").Value.String()
 
 	fmt.Printf("Generating graph...\n")
+	graph, err := deb.BuildGraph(context.CollectionFactory(), layout)
+
+	if err != nil {
+		return err
+	}
 
 	buf := bytes.NewBufferString(graph.String())
 
@@ -146,9 +43,16 @@ func aptlyGraph(cmd *commander.Command, args []string) error {
 	tempfile.Close()
 	os.Remove(tempfile.Name())
 
-	tempfilename := tempfile.Name() + ".png"
+	format := context.Flags().Lookup("format").Value.String()
+	output := context.Flags().Lookup("output").Value.String()
 
-	command := exec.Command("dot", "-Tpng", "-o"+tempfilename)
+	if filepath.Ext(output) != "" {
+		format = filepath.Ext(output)[1:]
+	}
+
+	tempfilename := tempfile.Name() + "." + format
+
+	command := exec.Command("dot", "-T"+format, "-o"+tempfilename)
 	command.Stderr = os.Stderr
 
 	stdin, err := command.StdinPipe()
@@ -176,15 +80,51 @@ func aptlyGraph(cmd *commander.Command, args []string) error {
 		return err
 	}
 
-	err = exec.Command("open", tempfilename).Run()
-	if err != nil {
-		fmt.Printf("Rendered to PNG file: %s\n", tempfilename)
-		err = nil
+	defer func() {
+		_ = os.Remove(tempfilename)
+	}()
+
+	if output != "" {
+		err = utils.CopyFile(tempfilename, output)
+		if err != nil {
+			return fmt.Errorf("unable to copy %s -> %s: %s", tempfilename, output, err)
+		}
+
+		fmt.Printf("Output saved to %s\n", output)
+	} else {
+		command := getOpenCommand()
+		fmt.Printf("Rendered to %s file: %s, trying to open it with: %s %s...\n", format, tempfilename, command, tempfilename)
+
+		args := strings.Split(command, " ")
+
+		viewer := exec.Command(args[0], append(args[1:], tempfilename)...)
+		viewer.Stderr = os.Stderr
+		if err = viewer.Start(); err == nil {
+			// Wait for a second so that the visualizer has a chance to
+			// open the input file. This needs to be done even if we're
+			// waiting for the visualizer as it can be just a wrapper that
+			// spawns a browser tab and returns right away.
+			defer func(t <-chan time.Time) {
+				<-t
+			}(time.After(time.Second))
+		}
 	}
 
 	return err
 }
 
+// getOpenCommand tries to guess command to open image for OS
+func getOpenCommand() string {
+	switch runtime.GOOS {
+	case "darwin":
+		return "/usr/bin/open"
+	case "windows":
+		return "cmd /c start"
+	default:
+		return "xdg-open"
+	}
+}
+
 func makeCmdGraph() *commander.Command {
 	cmd := &commander.Command{
 		Run:       aptlyGraph,
@@ -201,5 +141,9 @@ Example:
 `,
 	}
 
+	cmd.Flag.String("format", "png", "render graph to specified format (png, svg, pdf, etc.)")
+	cmd.Flag.String("output", "", "specify output filename, default is to open result in viewer")
+	cmd.Flag.String("layout", "horizontal", "create a more 'vertical' or a more 'horizontal' graph layout")
+
 	return cmd
 }

cmd/mirror.go

@@ -1,14 +1,15 @@
 package cmd
 
 import (
+	"strings"
+
 	"github.com/smira/aptly/utils"
 	"github.com/smira/commander"
 	"github.com/smira/flag"
-	"strings"
 )
 
 func getVerifier(flags *flag.FlagSet) (utils.Verifier, error) {
-	if context.Config().GpgDisableVerify || flags.Lookup("ignore-signatures").Value.Get().(bool) {
+	if LookupOption(context.Config().GpgDisableVerify, flags, "ignore-signatures") {
 		return nil, nil
 	}
 
@@ -56,6 +57,7 @@ func makeCmdMirror() *commander.Command {
 			makeCmdMirrorUpdate(),
 			makeCmdMirrorRename(),
 			makeCmdMirrorEdit(),
+			makeCmdMirrorSearch(),
 		},
 	}
 }

cmd/mirror_create.go

@@ -2,11 +2,12 @@ package cmd
 
 import (
 	"fmt"
+	"strings"
+
 	"github.com/smira/aptly/deb"
 	"github.com/smira/aptly/query"
 	"github.com/smira/commander"
 	"github.com/smira/flag"
-	"strings"
 )
 
 func aptlyMirrorCreate(cmd *commander.Command, args []string) error {
@@ -16,7 +17,8 @@ func aptlyMirrorCreate(cmd *commander.Command, args []string) error {
 		return commander.ErrCommandError
 	}
 
-	downloadSources := context.Config().DownloadSourcePackages || context.flags.Lookup("with-sources").Value.Get().(bool)
+	downloadSources := LookupOption(context.Config().DownloadSourcePackages, context.Flags(), "with-sources")
+	downloadUdebs := context.Flags().Lookup("with-udebs").Value.Get().(bool)
 
 	var (
 		mirrorName, archiveURL, distribution string
@@ -33,13 +35,16 @@ func aptlyMirrorCreate(cmd *commander.Command, args []string) error {
 		archiveURL, distribution, components = args[1], args[2], args[3:]
 	}
 
-	repo, err := deb.NewRemoteRepo(mirrorName, archiveURL, distribution, components, context.ArchitecturesList(), downloadSources)
+	repo, err := deb.NewRemoteRepo(mirrorName, archiveURL, distribution, components, context.ArchitecturesList(),
+		downloadSources, downloadUdebs)
 	if err != nil {
 		return fmt.Errorf("unable to create mirror: %s", err)
 	}
 
-	repo.Filter = context.flags.Lookup("filter").Value.String()
-	repo.FilterWithDeps = context.flags.Lookup("filter-with-deps").Value.Get().(bool)
+	repo.Filter = context.Flags().Lookup("filter").Value.String()
+	repo.FilterWithDeps = context.Flags().Lookup("filter-with-deps").Value.Get().(bool)
+	repo.SkipComponentCheck = context.Flags().Lookup("force-components").Value.Get().(bool)
+	repo.SkipArchitectureCheck = context.Flags().Lookup("force-architectures").Value.Get().(bool)
 
 	if repo.Filter != "" {
 		_, err = query.Parse(repo.Filter)
@@ -48,7 +53,7 @@ func aptlyMirrorCreate(cmd *commander.Command, args []string) error {
 		}
 	}
 
-	verifier, err := getVerifier(context.flags)
+	verifier, err := getVerifier(context.Flags())
 	if err != nil {
 		return fmt.Errorf("unable to initialize GPG verifier: %s", err)
 	}
@@ -74,7 +79,7 @@ func makeCmdMirrorCreate() *commander.Command {
 		Short:     "create new mirror",
 		Long: `
 Creates mirror <name> of remote repository, aptly supports both regular and flat Debian repositories exported
-via HTTP. aptly would try download Release file from remote repository and verify its' signature. Command
+via HTTP and FTP. aptly would try download Release file from remote repository and verify its' signature. Command
 line format resembles apt utlitily sources.list(5).
 
 PPA urls could specified in short format:
@@ -90,8 +95,11 @@ Example:
 
 	cmd.Flag.Bool("ignore-signatures", false, "disable verification of Release file signatures")
 	cmd.Flag.Bool("with-sources", false, "download source packages in addition to binary packages")
+	cmd.Flag.Bool("with-udebs", false, "download .udeb packages (Debian installer support)")
 	cmd.Flag.String("filter", "", "filter packages in mirror")
 	cmd.Flag.Bool("filter-with-deps", false, "when filtering, include dependencies of matching packages as well")
+	cmd.Flag.Bool("force-components", false, "(only with component list) skip check that requested components are listed in Release file")
+	cmd.Flag.Bool("force-architectures", false, "(only with architecture list) skip check that requested architectures are listed in Release file")
 	cmd.Flag.Var(&keyRingsFlag{}, "keyring", "gpg keyring to use when verifying Release file (could be specified multiple times)")
 
 	return cmd

cmd/mirror_drop.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+
 	"github.com/smira/commander"
 	"github.com/smira/flag"
 )
@@ -20,7 +21,12 @@ func aptlyMirrorDrop(cmd *commander.Command, args []string) error {
 		return fmt.Errorf("unable to drop: %s", err)
 	}
 
-	force := context.flags.Lookup("force").Value.Get().(bool)
+	err = repo.CheckLock()
+	if err != nil {
+		return fmt.Errorf("unable to drop: %s", err)
+	}
+
+	force := context.Flags().Lookup("force").Value.Get().(bool)
 	if !force {
 		snapshots := context.CollectionFactory().SnapshotCollection().ByRemoteRepoSource(repo)
 

cmd/mirror_edit.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+
 	"github.com/smira/aptly/query"
 	"github.com/smira/commander"
 	"github.com/smira/flag"
@@ -19,15 +20,28 @@ func aptlyMirrorEdit(cmd *commander.Command, args []string) error {
 		return fmt.Errorf("unable to edit: %s", err)
 	}
 
-	context.flags.Visit(func(flag *flag.Flag) {
+	err = repo.CheckLock()
+	if err != nil {
+		return fmt.Errorf("unable to edit: %s", err)
+	}
+
+	context.Flags().Visit(func(flag *flag.Flag) {
 		switch flag.Name {
 		case "filter":
 			repo.Filter = flag.Value.String()
 		case "filter-with-deps":
 			repo.FilterWithDeps = flag.Value.Get().(bool)
+		case "with-sources":
+			repo.DownloadSources = flag.Value.Get().(bool)
+		case "with-udebs":
+			repo.DownloadUdebs = flag.Value.Get().(bool)
 		}
 	})
 
+	if repo.IsFlat() && repo.DownloadUdebs {
+		return fmt.Errorf("unable to edit: flat mirrors don't support udebs")
+	}
+
 	if repo.Filter != "" {
 		_, err = query.Parse(repo.Filter)
 		if err != nil {
@@ -35,6 +49,15 @@ func aptlyMirrorEdit(cmd *commander.Command, args []string) error {
 		}
 	}
 
+	if context.GlobalFlags().Lookup("architectures").Value.String() != "" {
+		repo.Architectures = context.ArchitecturesList()
+
+		err = repo.Fetch(context.Downloader(), nil)
+		if err != nil {
+			return fmt.Errorf("unable to edit: %s", err)
+		}
+	}
+
 	err = context.CollectionFactory().RemoteRepoCollection().Update(repo)
 	if err != nil {
 		return fmt.Errorf("unable to edit: %s", err)
@@ -48,10 +71,10 @@ func makeCmdMirrorEdit() *commander.Command {
 	cmd := &commander.Command{
 		Run:       aptlyMirrorEdit,
 		UsageLine: "edit <name>",
-		Short:     "edit properties of mirorr",
+		Short:     "edit mirror settings",
 		Long: `
-Command edit allows to change settings of mirror:
-filters.
+Command edit allows one to change settings of mirror:
+filters, list of architectures.
 
 Example:
 
@@ -62,6 +85,8 @@ Example:
 
 	cmd.Flag.String("filter", "", "filter packages in mirror")
 	cmd.Flag.Bool("filter-with-deps", false, "when filtering, include dependencies of matching packages as well")
+	cmd.Flag.Bool("with-sources", false, "download source packages in addition to binary packages")
+	cmd.Flag.Bool("with-udebs", false, "download .udeb packages (Debian installer support)")
 
 	return cmd
 }

cmd/mirror_list.go

@@ -2,9 +2,10 @@ package cmd
 
 import (
 	"fmt"
+	"sort"
+
 	"github.com/smira/aptly/deb"
 	"github.com/smira/commander"
-	"sort"
 )
 
 func aptlyMirrorList(cmd *commander.Command, args []string) error {
@@ -28,6 +29,8 @@ func aptlyMirrorList(cmd *commander.Command, args []string) error {
 		return nil
 	})
 
+	context.CloseDatabase()
+
 	sort.Strings(repos)
 
 	if raw {

cmd/mirror_rename.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+
 	"github.com/smira/aptly/deb"
 	"github.com/smira/commander"
 )
@@ -24,6 +25,11 @@ func aptlyMirrorRename(cmd *commander.Command, args []string) error {
 		return fmt.Errorf("unable to rename: %s", err)
 	}
 
+	err = repo.CheckLock()
+	if err != nil {
+		return fmt.Errorf("unable to rename: %s", err)
+	}
+
 	_, err = context.CollectionFactory().RemoteRepoCollection().ByName(newName)
 	if err == nil {
 		return fmt.Errorf("unable to rename: mirror %s already exists", newName)

cmd/mirror_search.go

@@ -0,0 +1,29 @@
+package cmd
+
+import (
+	"github.com/smira/commander"
+	"github.com/smira/flag"
+)
+
+func makeCmdMirrorSearch() *commander.Command {
+	cmd := &commander.Command{
+		Run:       aptlySnapshotMirrorRepoSearch,
+		UsageLine: "search <name> [<package-query>]",
+		Short:     "search mirror for packages matching query",
+		Long: `
+Command search displays list of packages in mirror that match package query
+
+If query is not specified, all the packages are displayed.
+
+Example:
+
+    $ aptly mirror search wheezy-main '$Architecture (i386), Name (% *-dev)'
+`,
+		Flag: *flag.NewFlagSet("aptly-mirror-show", flag.ExitOnError),
+	}
+
+	cmd.Flag.Bool("with-deps", false, "include dependencies into search results")
+	cmd.Flag.String("format", "", "custom format for result printing")
+
+	return cmd
+}

cmd/mirror_show.go

@@ -2,10 +2,12 @@ package cmd
 
 import (
 	"fmt"
+	"strings"
+
+	"github.com/smira/aptly/deb"
 	"github.com/smira/aptly/utils"
 	"github.com/smira/commander"
 	"github.com/smira/flag"
-	"strings"
 )
 
 func aptlyMirrorShow(cmd *commander.Command, args []string) error {
@@ -28,6 +30,9 @@ func aptlyMirrorShow(cmd *commander.Command, args []string) error {
 	}
 
 	fmt.Printf("Name: %s\n", repo.Name)
+	if repo.Status == deb.MirrorUpdating {
+		fmt.Printf("Status: In Update (PID %d)\n", repo.WorkerPID)
+	}
 	fmt.Printf("Archive Root URL: %s\n", repo.ArchiveRoot)
 	fmt.Printf("Distribution: %s\n", repo.Distribution)
 	fmt.Printf("Components: %s\n", strings.Join(repo.Components, ", "))
@@ -37,6 +42,11 @@ func aptlyMirrorShow(cmd *commander.Command, args []string) error {
 		downloadSources = "yes"
 	}
 	fmt.Printf("Download Sources: %s\n", downloadSources)
+	downloadUdebs := "no"
+	if repo.DownloadUdebs {
+		downloadUdebs = "yes"
+	}
+	fmt.Printf("Download .udebs: %s\n", downloadUdebs)
 	if repo.Filter != "" {
 		fmt.Printf("Filter: %s\n", repo.Filter)
 		filterWithDeps := "no"
@@ -57,7 +67,7 @@ func aptlyMirrorShow(cmd *commander.Command, args []string) error {
 		fmt.Printf("%s: %s\n", k, repo.Meta[k])
 	}
 
-	withPackages := context.flags.Lookup("with-packages").Value.Get().(bool)
+	withPackages := context.Flags().Lookup("with-packages").Value.Get().(bool)
 	if withPackages {
 		if repo.LastDownloadDate.IsZero() {
 			fmt.Printf("Unable to show package list, mirror hasn't been downloaded yet.\n")

cmd/mirror_update.go

@@ -2,8 +2,13 @@ package cmd
 
 import (
 	"fmt"
+	"os"
+	"os/signal"
+	"strings"
+
 	"github.com/smira/aptly/deb"
 	"github.com/smira/aptly/query"
+	"github.com/smira/aptly/utils"
 	"github.com/smira/commander"
 	"github.com/smira/flag"
 )
@@ -27,9 +32,18 @@ func aptlyMirrorUpdate(cmd *commander.Command, args []string) error {
 		return fmt.Errorf("unable to update: %s", err)
 	}
 
-	ignoreMismatch := context.flags.Lookup("ignore-checksums").Value.Get().(bool)
+	force := context.Flags().Lookup("force").Value.Get().(bool)
+	if !force {
+		err = repo.CheckLock()
+		if err != nil {
+			return fmt.Errorf("unable to update: %s", err)
+		}
+	}
 
-	verifier, err := getVerifier(context.flags)
+	ignoreMismatch := context.Flags().Lookup("ignore-checksums").Value.Get().(bool)
+	maxTries := context.Flags().Lookup("max-tries").Value.Get().(int)
+
+	verifier, err := getVerifier(context.Flags())
 	if err != nil {
 		return fmt.Errorf("unable to initialize GPG verifier: %s", err)
 	}
@@ -39,21 +53,112 @@ func aptlyMirrorUpdate(cmd *commander.Command, args []string) error {
 		return fmt.Errorf("unable to update: %s", err)
 	}
 
-	var filterQuery deb.PackageQuery
-
-	if repo.Filter != "" {
-		filterQuery, err = query.Parse(repo.Filter)
-		if err != nil {
-			return fmt.Errorf("unable to update: %s", err)
-		}
-	}
-
-	err = repo.Download(context.Progress(), context.Downloader(), context.CollectionFactory(), context.PackagePool(), ignoreMismatch,
-		context.DependencyOptions(), filterQuery)
+	context.Progress().Printf("Downloading & parsing package files...\n")
+	err = repo.DownloadPackageIndexes(context.Progress(), context.Downloader(), context.CollectionFactory(), ignoreMismatch, maxTries)
 	if err != nil {
 		return fmt.Errorf("unable to update: %s", err)
 	}
 
+	if repo.Filter != "" {
+		context.Progress().Printf("Applying filter...\n")
+		var filterQuery deb.PackageQuery
+
+		filterQuery, err = query.Parse(repo.Filter)
+		if err != nil {
+			return fmt.Errorf("unable to update: %s", err)
+		}
+
+		var oldLen, newLen int
+		oldLen, newLen, err = repo.ApplyFilter(context.DependencyOptions(), filterQuery)
+		if err != nil {
+			return fmt.Errorf("unable to update: %s", err)
+		}
+		context.Progress().Printf("Packages filtered: %d -> %d.\n", oldLen, newLen)
+	}
+
+	var (
+		downloadSize int64
+		queue        []deb.PackageDownloadTask
+	)
+
+	context.Progress().Printf("Building download queue...\n")
+	queue, downloadSize, err = repo.BuildDownloadQueue(context.PackagePool())
+	if err != nil {
+		return fmt.Errorf("unable to update: %s", err)
+	}
+
+	defer func() {
+		// on any interruption, unlock the mirror
+		err = context.ReOpenDatabase()
+		if err == nil {
+			repo.MarkAsIdle()
+			context.CollectionFactory().RemoteRepoCollection().Update(repo)
+		}
+	}()
+
+	repo.MarkAsUpdating()
+	err = context.CollectionFactory().RemoteRepoCollection().Update(repo)
+	if err != nil {
+		return fmt.Errorf("unable to update: %s", err)
+	}
+
+	err = context.CloseDatabase()
+	if err != nil {
+		return fmt.Errorf("unable to update: %s", err)
+	}
+
+	// Catch ^C
+	sigch := make(chan os.Signal)
+	signal.Notify(sigch, os.Interrupt)
+
+	count := len(queue)
+	context.Progress().Printf("Download queue: %d items (%s)\n", count, utils.HumanBytes(downloadSize))
+
+	// Download from the queue
+	context.Progress().InitBar(downloadSize, true)
+
+	// Download all package files
+	ch := make(chan error, count)
+
+	// In separate goroutine (to avoid blocking main), push queue to downloader
+	go func() {
+		for _, task := range queue {
+			context.Downloader().DownloadWithChecksum(repo.PackageURL(task.RepoURI).String(), task.DestinationPath, ch, task.Checksums, ignoreMismatch, maxTries)
+		}
+
+		// We don't need queue after this point
+		queue = nil
+	}()
+
+	// Wait for all downloads to finish
+	var errors []string
+
+	for count > 0 {
+		select {
+		case <-sigch:
+			signal.Stop(sigch)
+			return fmt.Errorf("unable to update: interrupted")
+		case err = <-ch:
+			if err != nil {
+				errors = append(errors, err.Error())
+			}
+			count--
+		}
+	}
+
+	context.Progress().ShutdownBar()
+	signal.Stop(sigch)
+
+	if len(errors) > 0 {
+		return fmt.Errorf("unable to update: download errors:\n  %s", strings.Join(errors, "\n  "))
+	}
+
+	err = context.ReOpenDatabase()
+	if err != nil {
+		return fmt.Errorf("unable to update: %s", err)
+	}
+
+	repo.FinalizeDownload()
 	err = context.CollectionFactory().RemoteRepoCollection().Update(repo)
 	if err != nil {
 		return fmt.Errorf("unable to update: %s", err)
@@ -80,9 +185,11 @@ Example:
 		Flag: *flag.NewFlagSet("aptly-mirror-update", flag.ExitOnError),
 	}
 
+	cmd.Flag.Bool("force", false, "force update mirror even if it is locked by another process")
 	cmd.Flag.Bool("ignore-checksums", false, "ignore checksum mismatches while downloading package files and metadata")
 	cmd.Flag.Bool("ignore-signatures", false, "disable verification of Release file signatures")
 	cmd.Flag.Int64("download-limit", 0, "limit download speed (kbytes/sec)")
+	cmd.Flag.Int("max-tries", 1, "max download tries till process fails with download error")
 	cmd.Flag.Var(&keyRingsFlag{}, "keyring", "gpg keyring to use when verifying Release file (could be specified multiple times)")
 
 	return cmd

cmd/package.go

@@ -0,0 +1,16 @@
+package cmd
+
+import (
+	"github.com/smira/commander"
+)
+
+func makeCmdPackage() *commander.Command {
+	return &commander.Command{
+		UsageLine: "package",
+		Short:     "operations on packages",
+		Subcommands: []*commander.Command{
+			makeCmdPackageSearch(),
+			makeCmdPackageShow(),
+		},
+	}
+}

cmd/package_search.go

@@ -0,0 +1,63 @@
+package cmd
+
+import (
+	"fmt"
+
+	"github.com/smira/aptly/deb"
+	"github.com/smira/aptly/query"
+	"github.com/smira/commander"
+	"github.com/smira/flag"
+)
+
+func aptlyPackageSearch(cmd *commander.Command, args []string) error {
+	var (
+		err error
+		q   deb.PackageQuery
+	)
+
+	if len(args) > 1 {
+		cmd.Usage()
+		return commander.ErrCommandError
+	}
+
+	if len(args) == 1 {
+		q, err = query.Parse(args[0])
+		if err != nil {
+			return fmt.Errorf("unable to search: %s", err)
+		}
+	} else {
+		q = &deb.MatchAllQuery{}
+	}
+
+	result := q.Query(context.CollectionFactory().PackageCollection())
+	if result.Len() == 0 {
+		return fmt.Errorf("no results")
+	}
+
+	format := context.Flags().Lookup("format").Value.String()
+	PrintPackageList(result, format)
+
+	return err
+}
+
+func makeCmdPackageSearch() *commander.Command {
+	cmd := &commander.Command{
+		Run:       aptlyPackageSearch,
+		UsageLine: "search [<package-query>]",
+		Short:     "search for packages matching query",
+		Long: `
+Command search displays list of packages in whole DB that match package query.
+
+If query is not specified, all the packages are displayed.
+
+Example:
+
+    $ aptly package search '$Architecture (i386), Name (% *-dev)'
+`,
+		Flag: *flag.NewFlagSet("aptly-package-search", flag.ExitOnError),
+	}
+
+	cmd.Flag.String("format", "", "custom format for result printing")
+
+	return cmd
+}

cmd/package_show.go

@@ -0,0 +1,138 @@
+package cmd
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+
+	"github.com/smira/aptly/deb"
+	"github.com/smira/aptly/query"
+	"github.com/smira/commander"
+	"github.com/smira/flag"
+)
+
+func printReferencesTo(p *deb.Package) (err error) {
+	err = context.CollectionFactory().RemoteRepoCollection().ForEach(func(repo *deb.RemoteRepo) error {
+		err := context.CollectionFactory().RemoteRepoCollection().LoadComplete(repo)
+		if err != nil {
+			return err
+		}
+		if repo.RefList() != nil {
+			if repo.RefList().Has(p) {
+				fmt.Printf("  mirror %s\n", repo)
+			}
+		}
+		return nil
+	})
+	if err != nil {
+		return err
+	}
+
+	err = context.CollectionFactory().LocalRepoCollection().ForEach(func(repo *deb.LocalRepo) error {
+		err := context.CollectionFactory().LocalRepoCollection().LoadComplete(repo)
+		if err != nil {
+			return err
+		}
+		if repo.RefList() != nil {
+			if repo.RefList().Has(p) {
+				fmt.Printf("  local repo %s\n", repo)
+			}
+		}
+		return nil
+	})
+	if err != nil {
+		return err
+	}
+
+	err = context.CollectionFactory().SnapshotCollection().ForEach(func(snapshot *deb.Snapshot) error {
+		err := context.CollectionFactory().SnapshotCollection().LoadComplete(snapshot)
+		if err != nil {
+			return err
+		}
+		if snapshot.RefList().Has(p) {
+			fmt.Printf("  snapshot %s\n", snapshot)
+		}
+		return nil
+	})
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func aptlyPackageShow(cmd *commander.Command, args []string) error {
+	var err error
+	if len(args) != 1 {
+		cmd.Usage()
+		return commander.ErrCommandError
+	}
+
+	q, err := query.Parse(args[0])
+	if err != nil {
+		return fmt.Errorf("unable to show: %s", err)
+	}
+
+	withFiles := context.Flags().Lookup("with-files").Value.Get().(bool)
+	withReferences := context.Flags().Lookup("with-references").Value.Get().(bool)
+
+	w := bufio.NewWriter(os.Stdout)
+
+	result := q.Query(context.CollectionFactory().PackageCollection())
+
+	err = result.ForEach(func(p *deb.Package) error {
+		p.Stanza().WriteTo(w, p.IsSource, false)
+		w.Flush()
+		fmt.Printf("\n")
+
+		if withFiles {
+			fmt.Printf("Files in the pool:\n")
+			for _, f := range p.Files() {
+				path, err := context.PackagePool().Path(f.Filename, f.Checksums.MD5)
+				if err != nil {
+					return err
+				}
+				fmt.Printf("  %s\n", path)
+			}
+			fmt.Printf("\n")
+		}
+
+		if withReferences {
+			fmt.Printf("References to package:\n")
+			printReferencesTo(p)
+			fmt.Printf("\n")
+		}
+
+		return nil
+	})
+
+	if err != nil {
+		return fmt.Errorf("unable to show: %s", err)
+	}
+
+	return err
+}
+
+func makeCmdPackageShow() *commander.Command {
+	cmd := &commander.Command{
+		Run:       aptlyPackageShow,
+		UsageLine: "show <package-query>",
+		Short:     "show details about packages matching query",
+		Long: `
+Command shows displays detailed meta-information about packages
+matching query. Information from Debian control file is displayed.
+Optionally information about package files and
+inclusion into mirrors/snapshots/local repos is shown.
+
+Example:
+
+    $ aptly package show 'nginx-light_1.2.1-2.2+wheezy2_i386'
+`,
+		Flag: *flag.NewFlagSet("aptly-package-show", flag.ExitOnError),
+	}
+
+	cmd.Flag.Bool("with-files", false, "display information about files from package pool")
+	cmd.Flag.Bool("with-references", false, "display information about mirrors, snapshots and local repos referencing this package")
+
+	return cmd
+}

cmd/publish.go

@@ -4,17 +4,18 @@ import (
 	"github.com/smira/aptly/utils"
 	"github.com/smira/commander"
 	"github.com/smira/flag"
-	"strings"
 )
 
 func getSigner(flags *flag.FlagSet) (utils.Signer, error) {
-	if flags.Lookup("skip-signing").Value.Get().(bool) || context.Config().GpgDisableSign {
+	if LookupOption(context.Config().GpgDisableSign, flags, "skip-signing") {
 		return nil, nil
 	}
 
 	signer := &utils.GpgSigner{}
 	signer.SetKey(flags.Lookup("gpg-key").Value.String())
 	signer.SetKeyRing(flags.Lookup("keyring").Value.String(), flags.Lookup("secret-keyring").Value.String())
+	signer.SetPassphrase(flags.Lookup("passphrase").Value.String(), flags.Lookup("passphrase-file").Value.String())
+	signer.SetBatch(flags.Lookup("batch").Value.Get().(bool))
 
 	err := signer.Init()
 	if err != nil {
@@ -25,20 +26,6 @@ func getSigner(flags *flag.FlagSet) (utils.Signer, error) {
 
 }
 
-func parsePrefix(param string) (storage, prefix string) {
-	i := strings.LastIndex(param, ":")
-	if i != -1 {
-		storage = param[:i]
-		prefix = param[i+1:]
-		if prefix == "" {
-			prefix = "."
-		}
-	} else {
-		prefix = param
-	}
-	return
-}
-
 func makeCmdPublish() *commander.Command {
 	return &commander.Command{
 		UsageLine: "publish",
@@ -50,6 +37,7 @@ func makeCmdPublish() *commander.Command {
 			makeCmdPublishSnapshot(),
 			makeCmdPublishSwitch(),
 			makeCmdPublishUpdate(),
+			makeCmdPublishShow(),
 		},
 	}
 }

cmd/publish_drop.go

@@ -2,6 +2,8 @@ package cmd
 
 import (
 	"fmt"
+
+	"github.com/smira/aptly/deb"
 	"github.com/smira/commander"
 )
 
@@ -19,10 +21,10 @@ func aptlyPublishDrop(cmd *commander.Command, args []string) error {
 		param = args[1]
 	}
 
-	storage, prefix := parsePrefix(param)
+	storage, prefix := deb.ParsePrefix(param)
 
 	err = context.CollectionFactory().PublishedRepoCollection().Remove(context, storage, prefix, distribution,
-		context.CollectionFactory(), context.Progress())
+		context.CollectionFactory(), context.Progress(), context.Flags().Lookup("force-drop").Value.Get().(bool))
 	if err != nil {
 		return fmt.Errorf("unable to remove: %s", err)
 	}
@@ -47,5 +49,7 @@ Example:
 `,
 	}
 
+	cmd.Flag.Bool("force-drop", false, "remove published repository even if some files could not be cleaned up")
+
 	return cmd
 }

cmd/publish_list.go

@@ -2,9 +2,10 @@ package cmd
 
 import (
 	"fmt"
+	"sort"
+
 	"github.com/smira/aptly/deb"
 	"github.com/smira/commander"
-	"sort"
 )
 
 func aptlyPublishList(cmd *commander.Command, args []string) error {
@@ -25,7 +26,7 @@ func aptlyPublishList(cmd *commander.Command, args []string) error {
 		}
 
 		if raw {
-			published = append(published, fmt.Sprintf("%s %s", repo.Prefix, repo.Distribution))
+			published = append(published, fmt.Sprintf("%s %s", repo.StoragePrefix(), repo.Distribution))
 		} else {
 			published = append(published, repo.String())
 		}
@@ -36,6 +37,8 @@ func aptlyPublishList(cmd *commander.Command, args []string) error {
 		return fmt.Errorf("unable to load list of repos: %s", err)
 	}
 
+	context.CloseDatabase()
+
 	sort.Strings(published)
 
 	if raw {

cmd/publish_repo.go

@@ -37,7 +37,11 @@ Example:
 	cmd.Flag.String("gpg-key", "", "GPG key ID to use when signing the release")
 	cmd.Flag.Var(&keyRingsFlag{}, "keyring", "GPG keyring to use (instead of default)")
 	cmd.Flag.String("secret-keyring", "", "GPG secret keyring to use (instead of default)")
+	cmd.Flag.String("passphrase", "", "GPG passhprase for the key (warning: could be insecure)")
+	cmd.Flag.String("passphrase-file", "", "GPG passhprase-file for the key (warning: could be insecure)")
+	cmd.Flag.Bool("batch", false, "run GPG with detached tty")
 	cmd.Flag.Bool("skip-signing", false, "don't sign Release files with GPG")
+	cmd.Flag.Bool("skip-contents", false, "don't generate Contents indexes")
 	cmd.Flag.String("origin", "", "origin name to publish")
 	cmd.Flag.String("label", "", "label to publish")
 	cmd.Flag.Bool("force-overwrite", false, "overwrite files in package pool in case of mismatch")

cmd/publish_show.go

@@ -0,0 +1,81 @@
+package cmd
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/smira/aptly/deb"
+	"github.com/smira/commander"
+)
+
+func aptlyPublishShow(cmd *commander.Command, args []string) error {
+	var err error
+	if len(args) < 1 || len(args) > 2 {
+		cmd.Usage()
+		return commander.ErrCommandError
+	}
+
+	distribution := args[0]
+	param := "."
+
+	if len(args) == 2 {
+		param = args[1]
+	}
+
+	storage, prefix := deb.ParsePrefix(param)
+
+	repo, err := context.CollectionFactory().PublishedRepoCollection().ByStoragePrefixDistribution(storage, prefix, distribution)
+	if err != nil {
+		return fmt.Errorf("unable to show: %s", err)
+	}
+
+	if repo.Storage != "" {
+		fmt.Printf("Storage: %s\n", repo.Storage)
+	}
+	fmt.Printf("Prefix: %s\n", repo.Prefix)
+	if repo.Distribution != "" {
+		fmt.Printf("Distribution: %s\n", repo.Distribution)
+	}
+	fmt.Printf("Architectures: %s\n", strings.Join(repo.Architectures, " "))
+
+	fmt.Printf("Sources:\n")
+	for component, sourceID := range repo.Sources {
+		var name string
+		if repo.SourceKind == "snapshot" {
+			source, err := context.CollectionFactory().SnapshotCollection().ByUUID(sourceID)
+			if err != nil {
+				continue
+			}
+			name = source.Name
+		} else if repo.SourceKind == "local" {
+			source, err := context.CollectionFactory().LocalRepoCollection().ByUUID(sourceID)
+			if err != nil {
+				continue
+			}
+			name = source.Name
+		}
+
+		if name != "" {
+			fmt.Printf("  %s: %s [%s]\n", component, name, repo.SourceKind)
+		}
+	}
+
+	return err
+}
+
+func makeCmdPublishShow() *commander.Command {
+	cmd := &commander.Command{
+		Run:       aptlyPublishShow,
+		UsageLine: "show <distribution> [[<endpoint>:]<prefix>]",
+		Short:     "shows details of published repository",
+		Long: `
+Command show displays full information of a published repository.
+
+Example:
+
+    $ aptly publish show wheezy
+`,
+	}
+
+	return cmd
+}

cmd/publish_snapshot.go

@@ -2,18 +2,19 @@ package cmd
 
 import (
 	"fmt"
+	"strings"
+
 	"github.com/smira/aptly/aptly"
 	"github.com/smira/aptly/deb"
 	"github.com/smira/aptly/utils"
 	"github.com/smira/commander"
 	"github.com/smira/flag"
-	"strings"
 )
 
 func aptlyPublishSnapshotOrRepo(cmd *commander.Command, args []string) error {
 	var err error
 
-	components := strings.Split(context.flags.Lookup("component").Value.String(), ",")
+	components := strings.Split(context.Flags().Lookup("component").Value.String(), ",")
 
 	if len(args) < len(components) || len(args) > len(components)+1 {
 		cmd.Usage()
@@ -27,7 +28,7 @@ func aptlyPublishSnapshotOrRepo(cmd *commander.Command, args []string) error {
 	} else {
 		param = ""
 	}
-	storage, prefix := parsePrefix(param)
+	storage, prefix := deb.ParsePrefix(param)
 
 	var (
 		sources = []interface{}{}
@@ -110,14 +111,20 @@ func aptlyPublishSnapshotOrRepo(cmd *commander.Command, args []string) error {
 		panic("unknown command")
 	}
 
-	distribution := context.flags.Lookup("distribution").Value.String()
+	distribution := context.Flags().Lookup("distribution").Value.String()
 
 	published, err := deb.NewPublishedRepo(storage, prefix, distribution, context.ArchitecturesList(), components, sources, context.CollectionFactory())
 	if err != nil {
 		return fmt.Errorf("unable to publish: %s", err)
 	}
-	published.Origin = cmd.Flag.Lookup("origin").Value.String()
-	published.Label = cmd.Flag.Lookup("label").Value.String()
+	published.Origin = context.Flags().Lookup("origin").Value.String()
+	published.Label = context.Flags().Lookup("label").Value.String()
+
+	published.SkipContents = context.Config().SkipContentsPublishing
+
+	if context.Flags().IsSet("skip-contents") {
+		published.SkipContents = context.Flags().Lookup("skip-contents").Value.Get().(bool)
+	}
 
 	duplicate := context.CollectionFactory().PublishedRepoCollection().CheckDuplicate(published)
 	if duplicate != nil {
@@ -125,12 +132,12 @@ func aptlyPublishSnapshotOrRepo(cmd *commander.Command, args []string) error {
 		return fmt.Errorf("prefix/distribution already used by another published repo: %s", duplicate)
 	}
 
-	signer, err := getSigner(context.flags)
+	signer, err := getSigner(context.Flags())
 	if err != nil {
 		return fmt.Errorf("unable to initialize GPG signer: %s", err)
 	}
 
-	forceOverwrite := context.flags.Lookup("force-overwrite").Value.Get().(bool)
+	forceOverwrite := context.Flags().Lookup("force-overwrite").Value.Get().(bool)
 	if forceOverwrite {
 		context.Progress().ColoredPrintf("@rWARNING@|: force overwrite mode enabled, aptly might corrupt other published repositories sharing " +
 			"the same package pool.\n")
@@ -199,7 +206,11 @@ Example:
 	cmd.Flag.String("gpg-key", "", "GPG key ID to use when signing the release")
 	cmd.Flag.Var(&keyRingsFlag{}, "keyring", "GPG keyring to use (instead of default)")
 	cmd.Flag.String("secret-keyring", "", "GPG secret keyring to use (instead of default)")
+	cmd.Flag.String("passphrase", "", "GPG passhprase for the key (warning: could be insecure)")
+	cmd.Flag.String("passphrase-file", "", "GPG passhprase-file for the key (warning: could be insecure)")
+	cmd.Flag.Bool("batch", false, "run GPG with detached tty")
 	cmd.Flag.Bool("skip-signing", false, "don't sign Release files with GPG")
+	cmd.Flag.Bool("skip-contents", false, "don't generate Contents indexes")
 	cmd.Flag.String("origin", "", "origin name to publish")
 	cmd.Flag.String("label", "", "label to publish")
 	cmd.Flag.Bool("force-overwrite", false, "overwrite files in package pool in case of mismatch")

cmd/publish_switch.go

@@ -2,16 +2,18 @@ package cmd
 
 import (
 	"fmt"
+	"strings"
+
 	"github.com/smira/aptly/deb"
+	"github.com/smira/aptly/utils"
 	"github.com/smira/commander"
 	"github.com/smira/flag"
-	"strings"
 )
 
 func aptlyPublishSwitch(cmd *commander.Command, args []string) error {
 	var err error
 
-	components := strings.Split(context.flags.Lookup("component").Value.String(), ",")
+	components := strings.Split(context.Flags().Lookup("component").Value.String(), ",")
 
 	if len(args) < len(components)+1 || len(args) > len(components)+2 {
 		cmd.Usage()
@@ -33,7 +35,7 @@ func aptlyPublishSwitch(cmd *commander.Command, args []string) error {
 		names = args[1:]
 	}
 
-	storage, prefix := parsePrefix(param)
+	storage, prefix := deb.ParsePrefix(param)
 
 	var published *deb.PublishedRepo
 
@@ -61,6 +63,10 @@ func aptlyPublishSwitch(cmd *commander.Command, args []string) error {
 	}
 
 	for i, component := range components {
+		if !utils.StrSliceHasItem(publishedComponents, component) {
+			return fmt.Errorf("unable to switch: component %s is not in published repository", component)
+		}
+
 		snapshot, err = context.CollectionFactory().SnapshotCollection().ByName(names[i])
 		if err != nil {
 			return fmt.Errorf("unable to switch: %s", err)
@@ -74,17 +80,21 @@ func aptlyPublishSwitch(cmd *commander.Command, args []string) error {
 		published.UpdateSnapshot(component, snapshot)
 	}
 
-	signer, err := getSigner(context.flags)
+	signer, err := getSigner(context.Flags())
 	if err != nil {
 		return fmt.Errorf("unable to initialize GPG signer: %s", err)
 	}
 
-	forceOverwrite := context.flags.Lookup("force-overwrite").Value.Get().(bool)
+	forceOverwrite := context.Flags().Lookup("force-overwrite").Value.Get().(bool)
 	if forceOverwrite {
 		context.Progress().ColoredPrintf("@rWARNING@|: force overwrite mode enabled, aptly might corrupt other published repositories sharing " +
 			"the same package pool.\n")
 	}
 
+	if context.Flags().IsSet("skip-contents") {
+		published.SkipContents = context.Flags().Lookup("skip-contents").Value.Get().(bool)
+	}
+
 	err = published.Publish(context.PackagePool(), context, context.CollectionFactory(), signer, context.Progress(), forceOverwrite)
 	if err != nil {
 		return fmt.Errorf("unable to publish: %s", err)
@@ -112,7 +122,7 @@ func makeCmdPublishSwitch() *commander.Command {
 		UsageLine: "switch <distribution> [[<endpoint>:]<prefix>] <new-snapshot>",
 		Short:     "update published repository by switching to new snapshot",
 		Long: `
-Command switches in-place published repository with new snapshot contents. All
+Command switches in-place published snapshots with new snapshot contents. All
 publishing parameters are preserved (architecture list, distribution,
 component).
 
@@ -120,18 +130,25 @@ For multiple component repositories, flag -component should be given with
 list of components to update. Corresponding snapshots should be given in the
 same order, e.g.:
 
-	aptly publish update -component=main,contrib wheezy wh-main wh-contrib
+	aptly publish switch -component=main,contrib wheezy wh-main wh-contrib
 
 Example:
 
-    $ aptly publish update wheezy ppa wheezy-7.5
+    $ aptly publish switch wheezy ppa wheezy-7.5
+
+This command would switch published repository (with one component) named ppa/wheezy
+(prefix ppa, dsitribution wheezy to new snapshot wheezy-7.5).
 `,
 		Flag: *flag.NewFlagSet("aptly-publish-switch", flag.ExitOnError),
 	}
 	cmd.Flag.String("gpg-key", "", "GPG key ID to use when signing the release")
 	cmd.Flag.Var(&keyRingsFlag{}, "keyring", "GPG keyring to use (instead of default)")
 	cmd.Flag.String("secret-keyring", "", "GPG secret keyring to use (instead of default)")
+	cmd.Flag.String("passphrase", "", "GPG passhprase for the key (warning: could be insecure)")
+	cmd.Flag.String("passphrase-file", "", "GPG passhprase-file for the key (warning: could be insecure)")
+	cmd.Flag.Bool("batch", false, "run GPG with detached tty")
 	cmd.Flag.Bool("skip-signing", false, "don't sign Release files with GPG")
+	cmd.Flag.Bool("skip-contents", false, "don't generate Contents indexes")
 	cmd.Flag.String("component", "", "component names to update (for multi-component publishing, separate components with commas)")
 	cmd.Flag.Bool("force-overwrite", false, "overwrite files in package pool in case of mismatch")
 

cmd/publish_update.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+
 	"github.com/smira/aptly/deb"
 	"github.com/smira/commander"
 	"github.com/smira/flag"
@@ -20,7 +21,7 @@ func aptlyPublishUpdate(cmd *commander.Command, args []string) error {
 	if len(args) == 2 {
 		param = args[1]
 	}
-	storage, prefix := parsePrefix(param)
+	storage, prefix := deb.ParsePrefix(param)
 
 	var published *deb.PublishedRepo
 
@@ -43,17 +44,21 @@ func aptlyPublishUpdate(cmd *commander.Command, args []string) error {
 		published.UpdateLocalRepo(component)
 	}
 
-	signer, err := getSigner(context.flags)
+	signer, err := getSigner(context.Flags())
 	if err != nil {
 		return fmt.Errorf("unable to initialize GPG signer: %s", err)
 	}
 
-	forceOverwrite := context.flags.Lookup("force-overwrite").Value.Get().(bool)
+	forceOverwrite := context.Flags().Lookup("force-overwrite").Value.Get().(bool)
 	if forceOverwrite {
 		context.Progress().ColoredPrintf("@rWARNING@|: force overwrite mode enabled, aptly might corrupt other published repositories sharing " +
 			"the same package pool.\n")
 	}
 
+	if context.Flags().IsSet("skip-contents") {
+		published.SkipContents = context.Flags().Lookup("skip-contents").Value.Get().(bool)
+	}
+
 	err = published.Publish(context.PackagePool(), context, context.CollectionFactory(), signer, context.Progress(), forceOverwrite)
 	if err != nil {
 		return fmt.Errorf("unable to publish: %s", err)
@@ -98,7 +103,11 @@ Example:
 	cmd.Flag.String("gpg-key", "", "GPG key ID to use when signing the release")
 	cmd.Flag.Var(&keyRingsFlag{}, "keyring", "GPG keyring to use (instead of default)")
 	cmd.Flag.String("secret-keyring", "", "GPG secret keyring to use (instead of default)")
+	cmd.Flag.String("passphrase", "", "GPG passhprase for the key (warning: could be insecure)")
+	cmd.Flag.String("passphrase-file", "", "GPG passhprase-file for the key (warning: could be insecure)")
+	cmd.Flag.Bool("batch", false, "run GPG with detached tty")
 	cmd.Flag.Bool("skip-signing", false, "don't sign Release files with GPG")
+	cmd.Flag.Bool("skip-contents", false, "don't generate Contents indexes")
 	cmd.Flag.Bool("force-overwrite", false, "overwrite files in package pool in case of mismatch")
 
 	return cmd

cmd/repo.go

@@ -20,6 +20,8 @@ func makeCmdRepo() *commander.Command {
 			makeCmdRepoRemove(),
 			makeCmdRepoShow(),
 			makeCmdRepoRename(),
+			makeCmdRepoSearch(),
+			makeCmdRepoInclude(),
 		},
 	}
 }

cmd/repo_add.go

@@ -2,14 +2,13 @@ package cmd
 
 import (
 	"fmt"
+	"os"
+
+	"github.com/smira/aptly/aptly"
 	"github.com/smira/aptly/deb"
 	"github.com/smira/aptly/utils"
 	"github.com/smira/commander"
 	"github.com/smira/flag"
-	"os"
-	"path/filepath"
-	"sort"
-	"strings"
 )
 
 func aptlyRepoAdd(cmd *commander.Command, args []string) error {
@@ -40,130 +39,19 @@ func aptlyRepoAdd(cmd *commander.Command, args []string) error {
 		return fmt.Errorf("unable to load packages: %s", err)
 	}
 
-	packageFiles := []string{}
-	failedFiles := []string{}
+	forceReplace := context.Flags().Lookup("force-replace").Value.Get().(bool)
 
-	for _, location := range args[1:] {
-		info, err2 := os.Stat(location)
-		if err2 != nil {
-			context.Progress().ColoredPrintf("@y[!]@| @!Unable to process %s: %s@|", location, err2)
-			failedFiles = append(failedFiles, location)
-			continue
-		}
-		if info.IsDir() {
-			err2 = filepath.Walk(location, func(path string, info os.FileInfo, err3 error) error {
-				if err3 != nil {
-					return err3
-				}
-				if info.IsDir() {
-					return nil
-				}
+	var packageFiles, failedFiles []string
 
-				if strings.HasSuffix(info.Name(), ".deb") || strings.HasSuffix(info.Name(), ".dsc") {
-					packageFiles = append(packageFiles, path)
-				}
+	packageFiles, failedFiles = deb.CollectPackageFiles(args[1:], &aptly.ConsoleResultReporter{Progress: context.Progress()})
 
-				return nil
-			})
-		} else {
-			if strings.HasSuffix(info.Name(), ".deb") || strings.HasSuffix(info.Name(), ".dsc") {
-				packageFiles = append(packageFiles, location)
-			} else {
-				context.Progress().ColoredPrintf("@y[!]@| @!Unknwon file extenstion: %s@|", location)
-				failedFiles = append(failedFiles, location)
-				continue
-			}
-		}
-	}
+	var processedFiles, failedFiles2 []string
 
-	processedFiles := []string{}
-	sort.Strings(packageFiles)
-
-	for _, file := range packageFiles {
-		var (
-			stanza deb.Stanza
-			p      *deb.Package
-		)
-
-		candidateProcessedFiles := []string{}
-		isSourcePackage := strings.HasSuffix(file, ".dsc")
-
-		if isSourcePackage {
-			stanza, err = deb.GetControlFileFromDsc(file, verifier)
-
-			if err == nil {
-				stanza["Package"] = stanza["Source"]
-				delete(stanza, "Source")
-
-				p, err = deb.NewSourcePackageFromControlFile(stanza)
-			}
-		} else {
-			stanza, err = deb.GetControlFileFromDeb(file)
-			p = deb.NewPackageFromControlFile(stanza)
-		}
-		if err != nil {
-			context.Progress().ColoredPrintf("@y[!]@| @!Unable to read file %s: %s@|", file, err)
-			failedFiles = append(failedFiles, file)
-			continue
-		}
-
-		var checksums utils.ChecksumInfo
-		checksums, err = utils.ChecksumsForFile(file)
-		if err != nil {
-			return err
-		}
-
-		if isSourcePackage {
-			p.UpdateFiles(append(p.Files(), deb.PackageFile{Filename: filepath.Base(file), Checksums: checksums}))
-		} else {
-			p.UpdateFiles([]deb.PackageFile{deb.PackageFile{Filename: filepath.Base(file), Checksums: checksums}})
-		}
-
-		err = context.PackagePool().Import(file, checksums.MD5)
-		if err != nil {
-			context.Progress().ColoredPrintf("@y[!]@| @!Unable to import file %s into pool: %s@|", file, err)
-			failedFiles = append(failedFiles, file)
-			continue
-		}
-
-		candidateProcessedFiles = append(candidateProcessedFiles, file)
-
-		// go over all files, except for the last one (.dsc/.deb itself)
-		for _, f := range p.Files() {
-			if filepath.Base(f.Filename) == filepath.Base(file) {
-				continue
-			}
-			sourceFile := filepath.Join(filepath.Dir(file), filepath.Base(f.Filename))
-			err = context.PackagePool().Import(sourceFile, f.Checksums.MD5)
-			if err != nil {
-				context.Progress().ColoredPrintf("@y[!]@| @!Unable to import file %s into pool: %s@|", sourceFile, err)
-				failedFiles = append(failedFiles, file)
-				break
-			}
-
-			candidateProcessedFiles = append(candidateProcessedFiles, sourceFile)
-		}
-		if err != nil {
-			// some files haven't been imported
-			continue
-		}
-
-		err = context.CollectionFactory().PackageCollection().Update(p)
-		if err != nil {
-			context.Progress().ColoredPrintf("@y[!]@| @!Unable to save package %s: %s@|", p, err)
-			failedFiles = append(failedFiles, file)
-			continue
-		}
-
-		err = list.Add(p)
-		if err != nil {
-			context.Progress().ColoredPrintf("@y[!]@| @!Unable to add package to repo %s: %s@|", p, err)
-			failedFiles = append(failedFiles, file)
-			continue
-		}
-
-		context.Progress().ColoredPrintf("@g[+]@| %s added@|", p)
-		processedFiles = append(processedFiles, candidateProcessedFiles...)
+	processedFiles, failedFiles2, err = deb.ImportPackageFiles(list, packageFiles, forceReplace, verifier, context.PackagePool(),
+		context.CollectionFactory().PackageCollection(), &aptly.ConsoleResultReporter{Progress: context.Progress()}, nil)
+	failedFiles = append(failedFiles, failedFiles2...)
+	if err != nil {
+		return fmt.Errorf("unable to import package files: %s", err)
 	}
 
 	repo.UpdateRefList(deb.NewPackageRefListFromPackageList(list))
@@ -173,7 +61,7 @@ func aptlyRepoAdd(cmd *commander.Command, args []string) error {
 		return fmt.Errorf("unable to save: %s", err)
 	}
 
-	if context.flags.Lookup("remove-files").Value.Get().(bool) {
+	if context.Flags().Lookup("remove-files").Value.Get().(bool) {
 		processedFiles = utils.StrSliceDeduplicate(processedFiles)
 
 		for _, file := range processedFiles {
@@ -202,8 +90,8 @@ func makeCmdRepoAdd() *commander.Command {
 		UsageLine: "add <name> <package file.deb>|<directory> ...",
 		Short:     "add packages to local repository",
 		Long: `
-Command adds packages to local repository from .deb (binary packages) and .dsc (source packages) files.
-When importing from directory aptly would do recursive scan looking for all files matching *.deb or *.dsc
+Command adds packages to local repository from .deb, .udeb (binary packages) and .dsc (source packages) files.
+When importing from directory aptly would do recursive scan looking for all files matching *.[u]deb or *.dsc
 patterns. Every file discovered would be analyzed to extract metadata, package would then be created and added
 to the database. Files would be imported to internal package pool. For source packages, all required files are
 added automatically as well. Extra files for source package should be in the same directory as *.dsc file.
@@ -216,6 +104,7 @@ Example:
 	}
 
 	cmd.Flag.Bool("remove-files", false, "remove files that have been imported successfully into repository")
+	cmd.Flag.Bool("force-replace", false, "when adding package that conflicts with existing package, remove existing package")
 
 	return cmd
 }

cmd/repo_create.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+
 	"github.com/smira/aptly/deb"
 	"github.com/smira/commander"
 	"github.com/smira/flag"
@@ -9,14 +10,38 @@ import (
 
 func aptlyRepoCreate(cmd *commander.Command, args []string) error {
 	var err error
-	if len(args) != 1 {
+	if !(len(args) == 1 || (len(args) == 4 && args[1] == "from" && args[2] == "snapshot")) {
 		cmd.Usage()
 		return commander.ErrCommandError
 	}
 
-	repo := deb.NewLocalRepo(args[0], context.flags.Lookup("comment").Value.String())
-	repo.DefaultDistribution = context.flags.Lookup("distribution").Value.String()
-	repo.DefaultComponent = context.flags.Lookup("component").Value.String()
+	repo := deb.NewLocalRepo(args[0], context.Flags().Lookup("comment").Value.String())
+	repo.DefaultDistribution = context.Flags().Lookup("distribution").Value.String()
+	repo.DefaultComponent = context.Flags().Lookup("component").Value.String()
+
+	uploadersFile := context.Flags().Lookup("uploaders-file").Value.Get().(string)
+	if uploadersFile != "" {
+		repo.Uploaders, err = deb.NewUploadersFromFile(uploadersFile)
+		if err != nil {
+			return err
+		}
+	}
+
+	if len(args) == 4 {
+		var snapshot *deb.Snapshot
+
+		snapshot, err = context.CollectionFactory().SnapshotCollection().ByName(args[3])
+		if err != nil {
+			return fmt.Errorf("unable to load source snapshot: %s", err)
+		}
+
+		err = context.CollectionFactory().SnapshotCollection().LoadComplete(snapshot)
+		if err != nil {
+			return fmt.Errorf("unable to load source snapshot: %s", err)
+		}
+
+		repo.UpdateRefList(snapshot.RefList())
+	}
 
 	err = context.CollectionFactory().LocalRepoCollection().Add(repo)
 	if err != nil {
@@ -30,16 +55,21 @@ func aptlyRepoCreate(cmd *commander.Command, args []string) error {
 func makeCmdRepoCreate() *commander.Command {
 	cmd := &commander.Command{
 		Run:       aptlyRepoCreate,
-		UsageLine: "create <name>",
+		UsageLine: "create <name> [ from snapshot <snapshot> ]",
 		Short:     "create local repository",
 		Long: `
 Create local package repository. Repository would be empty when
 created, packages could be added from files, copied or moved from
 another local repository or imported from the mirror.
 
+If local package repository is created from snapshot, repo initial
+contents are copied from snapsot contents.
+
 Example:
 
   $ aptly repo create testing
+
+  $ aptly repo create mysql35 from snapshot mysql-35-2017
 `,
 		Flag: *flag.NewFlagSet("aptly-repo-create", flag.ExitOnError),
 	}
@@ -47,6 +77,7 @@ Example:
 	cmd.Flag.String("comment", "", "any text that would be used to described local repository")
 	cmd.Flag.String("distribution", "", "default distribution when publishing")
 	cmd.Flag.String("component", "main", "default component when publishing")
+	cmd.Flag.String("uploaders-file", "", "uploaders.json to be used when including .changes into this repository")
 
 	return cmd
 }

cmd/repo_drop.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+
 	"github.com/smira/commander"
 	"github.com/smira/flag"
 )
@@ -34,7 +35,7 @@ func aptlyRepoDrop(cmd *commander.Command, args []string) error {
 		return fmt.Errorf("unable to drop: local repo is published")
 	}
 
-	force := context.flags.Lookup("force").Value.Get().(bool)
+	force := context.Flags().Lookup("force").Value.Get().(bool)
 	if !force {
 		snapshots := context.CollectionFactory().SnapshotCollection().ByLocalRepoSource(repo)
 

cmd/repo_edit.go

@@ -2,6 +2,9 @@ package cmd
 
 import (
 	"fmt"
+
+	"github.com/AlekSi/pointer"
+	"github.com/smira/aptly/deb"
 	"github.com/smira/commander"
 	"github.com/smira/flag"
 )
@@ -23,16 +26,30 @@ func aptlyRepoEdit(cmd *commander.Command, args []string) error {
 		return fmt.Errorf("unable to edit: %s", err)
 	}
 
-	if context.flags.Lookup("comment").Value.String() != "" {
-		repo.Comment = context.flags.Lookup("comment").Value.String()
-	}
+	var uploadersFile *string
 
-	if context.flags.Lookup("distribution").Value.String() != "" {
-		repo.DefaultDistribution = context.flags.Lookup("distribution").Value.String()
-	}
+	context.Flags().Visit(func(flag *flag.Flag) {
+		switch flag.Name {
+		case "comment":
+			repo.Comment = flag.Value.String()
+		case "distribution":
+			repo.DefaultDistribution = flag.Value.String()
+		case "component":
+			repo.DefaultComponent = flag.Value.String()
+		case "uploaders-file":
+			uploadersFile = pointer.ToString(flag.Value.String())
+		}
+	})
 
-	if context.flags.Lookup("component").Value.String() != "" {
-		repo.DefaultComponent = context.flags.Lookup("component").Value.String()
+	if uploadersFile != nil {
+		if *uploadersFile != "" {
+			repo.Uploaders, err = deb.NewUploadersFromFile(*uploadersFile)
+			if err != nil {
+				return err
+			}
+		} else {
+			repo.Uploaders = nil
+		}
 	}
 
 	err = context.CollectionFactory().LocalRepoCollection().Update(repo)
@@ -50,7 +67,7 @@ func makeCmdRepoEdit() *commander.Command {
 		UsageLine: "edit <name>",
 		Short:     "edit properties of local repository",
 		Long: `
-Command edit allows to change metadata of local repository:
+Command edit allows one to change metadata of local repository:
 comment, default distribution and component.
 
 Example:
@@ -63,6 +80,7 @@ Example:
 	cmd.Flag.String("comment", "", "any text that would be used to described local repository")
 	cmd.Flag.String("distribution", "", "default distribution when publishing")
 	cmd.Flag.String("component", "", "default component when publishing")
+	cmd.Flag.String("uploaders-file", "", "uploaders.json to be used when including .changes into this repository")
 
 	return cmd
 }

cmd/repo_include.go

@@ -0,0 +1,235 @@
+package cmd
+
+import (
+	"bytes"
+	"fmt"
+	"os"
+	"path/filepath"
+	"text/template"
+
+	"github.com/smira/aptly/aptly"
+	"github.com/smira/aptly/deb"
+	"github.com/smira/aptly/query"
+	"github.com/smira/aptly/utils"
+	"github.com/smira/commander"
+	"github.com/smira/flag"
+)
+
+func aptlyRepoInclude(cmd *commander.Command, args []string) error {
+	var err error
+	if len(args) < 1 {
+		cmd.Usage()
+		return commander.ErrCommandError
+	}
+
+	verifier, err := getVerifier(context.Flags())
+	if err != nil {
+		return fmt.Errorf("unable to initialize GPG verifier: %s", err)
+	}
+
+	if verifier == nil {
+		verifier = &utils.GpgVerifier{}
+	}
+
+	forceReplace := context.Flags().Lookup("force-replace").Value.Get().(bool)
+	acceptUnsigned := context.Flags().Lookup("accept-unsigned").Value.Get().(bool)
+	ignoreSignatures := context.Flags().Lookup("ignore-signatures").Value.Get().(bool)
+	noRemoveFiles := context.Flags().Lookup("no-remove-files").Value.Get().(bool)
+
+	repoTemplate, err := template.New("repo").Parse(context.Flags().Lookup("repo").Value.Get().(string))
+	if err != nil {
+		return fmt.Errorf("error parsing -repo template: %s", err)
+	}
+
+	uploaders := (*deb.Uploaders)(nil)
+	uploadersFile := context.Flags().Lookup("uploaders-file").Value.Get().(string)
+	if uploadersFile != "" {
+		uploaders, err = deb.NewUploadersFromFile(uploadersFile)
+		if err != nil {
+			return err
+		}
+
+		for i := range uploaders.Rules {
+			uploaders.Rules[i].CompiledCondition, err = query.Parse(uploaders.Rules[i].Condition)
+			if err != nil {
+				return fmt.Errorf("error parsing query %s: %s", uploaders.Rules[i].Condition, err)
+			}
+		}
+	}
+
+	reporter := &aptly.ConsoleResultReporter{Progress: context.Progress()}
+
+	var changesFiles, failedFiles, processedFiles []string
+
+	changesFiles, failedFiles = deb.CollectChangesFiles(args, reporter)
+
+	for _, path := range changesFiles {
+		var changes *deb.Changes
+
+		changes, err = deb.NewChanges(path)
+		if err != nil {
+			failedFiles = append(failedFiles, path)
+			reporter.Warning("unable to process file %s: %s", path, err)
+			continue
+		}
+
+		err = changes.VerifyAndParse(acceptUnsigned, ignoreSignatures, verifier)
+		if err != nil {
+			failedFiles = append(failedFiles, path)
+			reporter.Warning("unable to process file %s: %s", changes.ChangesName, err)
+			changes.Cleanup()
+			continue
+		}
+
+		err = changes.Prepare()
+		if err != nil {
+			failedFiles = append(failedFiles, path)
+			reporter.Warning("unable to process file %s: %s", changes.ChangesName, err)
+			changes.Cleanup()
+			continue
+		}
+
+		repoName := &bytes.Buffer{}
+		err = repoTemplate.Execute(repoName, changes.Stanza)
+		if err != nil {
+			return fmt.Errorf("error applying template to repo: %s", err)
+		}
+
+		context.Progress().Printf("Loading repository %s for changes file %s...\n", repoName.String(), changes.ChangesName)
+
+		repo, err := context.CollectionFactory().LocalRepoCollection().ByName(repoName.String())
+		if err != nil {
+			failedFiles = append(failedFiles, path)
+			reporter.Warning("unable to process file %s: %s", changes.ChangesName, err)
+			changes.Cleanup()
+			continue
+		}
+
+		currentUploaders := uploaders
+		if repo.Uploaders != nil {
+			currentUploaders = repo.Uploaders
+			for i := range currentUploaders.Rules {
+				currentUploaders.Rules[i].CompiledCondition, err = query.Parse(currentUploaders.Rules[i].Condition)
+				if err != nil {
+					return fmt.Errorf("error parsing query %s: %s", currentUploaders.Rules[i].Condition, err)
+				}
+			}
+		}
+
+		if currentUploaders != nil {
+			if err = currentUploaders.IsAllowed(changes); err != nil {
+				failedFiles = append(failedFiles, path)
+				reporter.Warning("changes file skipped due to uploaders config: %s, keys %#v: %s",
+					changes.ChangesName, changes.SignatureKeys, err)
+				changes.Cleanup()
+				continue
+			}
+		}
+
+		err = context.CollectionFactory().LocalRepoCollection().LoadComplete(repo)
+		if err != nil {
+			return fmt.Errorf("unable to load repo: %s", err)
+		}
+
+		list, err := deb.NewPackageListFromRefList(repo.RefList(), context.CollectionFactory().PackageCollection(), context.Progress())
+		if err != nil {
+			return fmt.Errorf("unable to load packages: %s", err)
+		}
+
+		packageFiles, _ := deb.CollectPackageFiles([]string{changes.TempDir}, reporter)
+
+		var restriction deb.PackageQuery
+
+		restriction, err = changes.PackageQuery()
+		if err != nil {
+			failedFiles = append(failedFiles, path)
+			reporter.Warning("unable to process file %s: %s", changes.ChangesName, err)
+			changes.Cleanup()
+			continue
+		}
+
+		var processedFiles2, failedFiles2 []string
+
+		processedFiles2, failedFiles2, err = deb.ImportPackageFiles(list, packageFiles, forceReplace, verifier, context.PackagePool(),
+			context.CollectionFactory().PackageCollection(), reporter, restriction)
+
+		if err != nil {
+			return fmt.Errorf("unable to import package files: %s", err)
+		}
+
+		repo.UpdateRefList(deb.NewPackageRefListFromPackageList(list))
+
+		err = context.CollectionFactory().LocalRepoCollection().Update(repo)
+		if err != nil {
+			return fmt.Errorf("unable to save: %s", err)
+		}
+
+		err = changes.Cleanup()
+		if err != nil {
+			return err
+		}
+
+		for _, file := range failedFiles2 {
+			failedFiles = append(failedFiles, filepath.Join(changes.BasePath, filepath.Base(file)))
+		}
+
+		for _, file := range processedFiles2 {
+			processedFiles = append(processedFiles, filepath.Join(changes.BasePath, filepath.Base(file)))
+		}
+
+		processedFiles = append(processedFiles, path)
+	}
+
+	if !noRemoveFiles {
+		processedFiles = utils.StrSliceDeduplicate(processedFiles)
+
+		for _, file := range processedFiles {
+			err := os.Remove(file)
+			if err != nil {
+				return fmt.Errorf("unable to remove file: %s", err)
+			}
+		}
+	}
+
+	if len(failedFiles) > 0 {
+		context.Progress().ColoredPrintf("@y[!]@| @!Some files were skipped due to errors:@|")
+		for _, file := range failedFiles {
+			context.Progress().ColoredPrintf("  %s", file)
+		}
+
+		return fmt.Errorf("some files failed to be added")
+	}
+
+	return err
+}
+
+func makeCmdRepoInclude() *commander.Command {
+	cmd := &commander.Command{
+		Run:       aptlyRepoInclude,
+		UsageLine: "include <file.changes>|<directory> ...",
+		Short:     "add packages to local repositories based on .changes files",
+		Long: `
+Command include looks for .changes files in list of arguments or specified directories. Each
+.changes file is verified, parsed, referenced files are put into separate temporary directory
+and added into local repository. Successfully imported files are removed by default.
+
+Additionally uploads could be restricted with <uploaders.json> file. Rules in this file control
+uploads based on GPG key ID of .changes file signature and queries on .changes file fields.
+
+Example:
+
+  $ aptly repo include -repo=foo-release incoming/
+`,
+		Flag: *flag.NewFlagSet("aptly-repo-include", flag.ExitOnError),
+	}
+
+	cmd.Flag.Bool("no-remove-files", false, "don't remove files that have been imported successfully into repository")
+	cmd.Flag.Bool("force-replace", false, "when adding package that conflicts with existing package, remove existing package")
+	cmd.Flag.String("repo", "{{.Distribution}}", "which repo should files go to, defaults to Distribution field of .changes file")
+	cmd.Flag.Var(&keyRingsFlag{}, "keyring", "gpg keyring to use when verifying Release file (could be specified multiple times)")
+	cmd.Flag.Bool("ignore-signatures", false, "disable verification of .changes file signature")
+	cmd.Flag.Bool("accept-unsigned", false, "accept unsigned .changes files")
+	cmd.Flag.String("uploaders-file", "", "path to uploaders.json file")
+
+	return cmd
+}

cmd/repo_list.go

@@ -2,9 +2,10 @@ package cmd
 
 import (
 	"fmt"
+	"sort"
+
 	"github.com/smira/aptly/deb"
 	"github.com/smira/commander"
-	"sort"
 )
 
 func aptlyRepoList(cmd *commander.Command, args []string) error {
@@ -33,6 +34,8 @@ func aptlyRepoList(cmd *commander.Command, args []string) error {
 		return nil
 	})
 
+	context.CloseDatabase()
+
 	sort.Strings(repos)
 
 	if raw {

cmd/repo_move.go

@@ -2,11 +2,12 @@ package cmd
 
 import (
 	"fmt"
+	"sort"
+
 	"github.com/smira/aptly/deb"
 	"github.com/smira/aptly/query"
 	"github.com/smira/commander"
 	"github.com/smira/flag"
-	"sort"
 )
 
 func aptlyRepoMoveCopyImport(cmd *commander.Command, args []string) error {
@@ -87,7 +88,7 @@ func aptlyRepoMoveCopyImport(cmd *commander.Command, args []string) error {
 
 	var architecturesList []string
 
-	withDeps := context.flags.Lookup("with-deps").Value.Get().(bool)
+	withDeps := context.Flags().Lookup("with-deps").Value.Get().(bool)
 
 	if withDeps {
 		dstList.PrepareIndex()
@@ -145,7 +146,7 @@ func aptlyRepoMoveCopyImport(cmd *commander.Command, args []string) error {
 		return fmt.Errorf("unable to %s: %s", command, err)
 	}
 
-	if context.flags.Lookup("dry-run").Value.Get().(bool) {
+	if context.Flags().Lookup("dry-run").Value.Get().(bool) {
 		context.Progress().Printf("\nChanges not saved, as dry run has been requested.\n")
 	} else {
 		dstRepo.UpdateRefList(deb.NewPackageRefListFromPackageList(dstList))

cmd/repo_remove.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+
 	"github.com/smira/aptly/deb"
 	"github.com/smira/aptly/query"
 	"github.com/smira/commander"
@@ -54,7 +55,7 @@ func aptlyRepoRemove(cmd *commander.Command, args []string) error {
 		return nil
 	})
 
-	if context.flags.Lookup("dry-run").Value.Get().(bool) {
+	if context.Flags().Lookup("dry-run").Value.Get().(bool) {
 		context.Progress().Printf("\nChanges not saved, as dry run has been requested.\n")
 	} else {
 		repo.UpdateRefList(deb.NewPackageRefListFromPackageList(list))

cmd/repo_rename.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+
 	"github.com/smira/aptly/deb"
 	"github.com/smira/commander"
 )

cmd/repo_search.go

@@ -0,0 +1,29 @@
+package cmd
+
+import (
+	"github.com/smira/commander"
+	"github.com/smira/flag"
+)
+
+func makeCmdRepoSearch() *commander.Command {
+	cmd := &commander.Command{
+		Run:       aptlySnapshotMirrorRepoSearch,
+		UsageLine: "search <name> [<package-query>]",
+		Short:     "search repo for packages matching query",
+		Long: `
+Command search displays list of packages in local repository that match package query
+
+If query is not specified, all the packages are displayed.
+
+Example:
+
+    $ aptly repo search my-software '$Architecture (i386), Name (% *-dev)'
+`,
+		Flag: *flag.NewFlagSet("aptly-repo-show", flag.ExitOnError),
+	}
+
+	cmd.Flag.Bool("with-deps", false, "include dependencies into search results")
+	cmd.Flag.String("format", "", "custom format for result printing")
+
+	return cmd
+}

cmd/repo_show.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+
 	"github.com/smira/commander"
 	"github.com/smira/flag"
 )
@@ -29,9 +30,12 @@ func aptlyRepoShow(cmd *commander.Command, args []string) error {
 	fmt.Printf("Comment: %s\n", repo.Comment)
 	fmt.Printf("Default Distribution: %s\n", repo.DefaultDistribution)
 	fmt.Printf("Default Component: %s\n", repo.DefaultComponent)
+	if repo.Uploaders != nil {
+		fmt.Printf("Uploaders: %s\n", repo.Uploaders)
+	}
 	fmt.Printf("Number of packages: %d\n", repo.NumPackages())
 
-	withPackages := context.flags.Lookup("with-packages").Value.Get().(bool)
+	withPackages := context.Flags().Lookup("with-packages").Value.Get().(bool)
 	if withPackages {
 		ListPackagesRefList(repo.RefList())
 	}

cmd/run.go

@@ -0,0 +1,47 @@
+package cmd
+
+import (
+	"fmt"
+	"os"
+
+	ctx "github.com/smira/aptly/context"
+	"github.com/smira/commander"
+)
+
+// Run runs single command starting from root cmd with args, optionally initializing context
+func Run(cmd *commander.Command, cmdArgs []string, initContext bool) (returnCode int) {
+	defer func() {
+		if r := recover(); r != nil {
+			fatal, ok := r.(*ctx.FatalError)
+			if !ok {
+				panic(r)
+			}
+			fmt.Fprintln(os.Stderr, "ERROR:", fatal.Message)
+			returnCode = fatal.ReturnCode
+		}
+	}()
+
+	returnCode = 0
+
+	flags, args, err := cmd.ParseFlags(cmdArgs)
+	if err != nil {
+		ctx.Fatal(err)
+	}
+
+	if initContext {
+		err = InitContext(flags)
+		if err != nil {
+			ctx.Fatal(err)
+		}
+		defer ShutdownContext()
+	}
+
+	context.UpdateFlags(flags)
+
+	err = cmd.Dispatch(args)
+	if err != nil {
+		ctx.Fatal(err)
+	}
+
+	return
+}

cmd/serve.go

@@ -2,16 +2,17 @@ package cmd
 
 import (
 	"fmt"
-	"github.com/smira/aptly/aptly"
-	"github.com/smira/aptly/deb"
-	"github.com/smira/aptly/utils"
-	"github.com/smira/commander"
-	"github.com/smira/flag"
 	"net"
 	"net/http"
 	"os"
 	"sort"
 	"strings"
+
+	"github.com/smira/aptly/aptly"
+	"github.com/smira/aptly/deb"
+	"github.com/smira/aptly/utils"
+	"github.com/smira/commander"
+	"github.com/smira/flag"
 )
 
 func aptlyServe(cmd *commander.Command, args []string) error {
@@ -22,12 +23,23 @@ func aptlyServe(cmd *commander.Command, args []string) error {
 		return commander.ErrCommandError
 	}
 
+	// There are only two working options for aptly's rootDir:
+	//   1. rootDir does not exist, then we'll create it
+	//   2. rootDir exists and is writable
+	// anything else must fail.
+	// E.g.: Running the service under a different user may lead to a rootDir
+	// that exists but is not usable due to access permissions.
+	err = utils.DirIsAccessible(context.Config().RootDir)
+	if err != nil {
+		return err
+	}
+
 	if context.CollectionFactory().PublishedRepoCollection().Len() == 0 {
 		fmt.Printf("No published repositories, unable to serve.\n")
 		return nil
 	}
 
-	listen := context.flags.Lookup("listen").Value.String()
+	listen := context.Flags().Lookup("listen").Value.String()
 
 	listenHost, listenPort, err := net.SplitHostPort(listen)
 

cmd/snapshot.go

@@ -18,6 +18,8 @@ func makeCmdSnapshot() *commander.Command {
 			makeCmdSnapshotMerge(),
 			makeCmdSnapshotDrop(),
 			makeCmdSnapshotRename(),
+			makeCmdSnapshotSearch(),
+			makeCmdSnapshotFilter(),
 		},
 	}
 }

cmd/snapshot_create.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+
 	"github.com/smira/aptly/deb"
 	"github.com/smira/commander"
 )
@@ -23,6 +24,11 @@ func aptlySnapshotCreate(cmd *commander.Command, args []string) error {
 			return fmt.Errorf("unable to create snapshot: %s", err)
 		}
 
+		err = repo.CheckLock()
+		if err != nil {
+			return fmt.Errorf("unable to create snapshot: %s", err)
+		}
+
 		err = context.CollectionFactory().RemoteRepoCollection().LoadComplete(repo)
 		if err != nil {
 			return fmt.Errorf("unable to create snapshot: %s", err)

cmd/snapshot_diff.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+
 	"github.com/smira/commander"
 	"github.com/smira/flag"
 )
@@ -13,7 +14,7 @@ func aptlySnapshotDiff(cmd *commander.Command, args []string) error {
 		return commander.ErrCommandError
 	}
 
-	onlyMatching := context.flags.Lookup("only-matching").Value.Get().(bool)
+	onlyMatching := context.Flags().Lookup("only-matching").Value.Get().(bool)
 
 	// Load <name-a> snapshot
 	snapshotA, err := context.CollectionFactory().SnapshotCollection().ByName(args[0])

cmd/snapshot_drop.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+
 	"github.com/smira/commander"
 	"github.com/smira/flag"
 )
@@ -35,7 +36,7 @@ func aptlySnapshotDrop(cmd *commander.Command, args []string) error {
 		return fmt.Errorf("unable to drop: snapshot is published")
 	}
 
-	force := context.flags.Lookup("force").Value.Get().(bool)
+	force := context.Flags().Lookup("force").Value.Get().(bool)
 	if !force {
 		snapshots := context.CollectionFactory().SnapshotCollection().BySnapshotSource(snapshot)
 		if len(snapshots) > 0 {

cmd/snapshot_filter.go

@@ -0,0 +1,108 @@
+package cmd
+
+import (
+	"fmt"
+	"sort"
+	"strings"
+
+	"github.com/smira/aptly/deb"
+	"github.com/smira/aptly/query"
+	"github.com/smira/commander"
+	"github.com/smira/flag"
+)
+
+func aptlySnapshotFilter(cmd *commander.Command, args []string) error {
+	var err error
+	if len(args) < 3 {
+		cmd.Usage()
+		return commander.ErrCommandError
+	}
+
+	withDeps := context.Flags().Lookup("with-deps").Value.Get().(bool)
+
+	// Load <source> snapshot
+	source, err := context.CollectionFactory().SnapshotCollection().ByName(args[0])
+	if err != nil {
+		return fmt.Errorf("unable to filter: %s", err)
+	}
+
+	err = context.CollectionFactory().SnapshotCollection().LoadComplete(source)
+	if err != nil {
+		return fmt.Errorf("unable to filter: %s", err)
+	}
+
+	// Convert snapshot to package list
+	context.Progress().Printf("Loading packages (%d)...\n", source.RefList().Len())
+	packageList, err := deb.NewPackageListFromRefList(source.RefList(), context.CollectionFactory().PackageCollection(), context.Progress())
+	if err != nil {
+		return fmt.Errorf("unable to load packages: %s", err)
+	}
+
+	context.Progress().Printf("Building indexes...\n")
+	packageList.PrepareIndex()
+
+	// Calculate architectures
+	var architecturesList []string
+
+	if len(context.ArchitecturesList()) > 0 {
+		architecturesList = context.ArchitecturesList()
+	} else {
+		architecturesList = packageList.Architectures(false)
+	}
+
+	sort.Strings(architecturesList)
+
+	if len(architecturesList) == 0 && withDeps {
+		return fmt.Errorf("unable to determine list of architectures, please specify explicitly")
+	}
+
+	// Initial queries out of arguments
+	queries := make([]deb.PackageQuery, len(args)-2)
+	for i, arg := range args[2:] {
+		queries[i], err = query.Parse(arg)
+		if err != nil {
+			return fmt.Errorf("unable to parse query: %s", err)
+		}
+	}
+
+	// Filter with dependencies as requested
+	result, err := packageList.Filter(queries, withDeps, nil, context.DependencyOptions(), architecturesList)
+	if err != nil {
+		return fmt.Errorf("unable to filter: %s", err)
+	}
+
+	// Create <destination> snapshot
+	destination := deb.NewSnapshotFromPackageList(args[1], []*deb.Snapshot{source}, result,
+		fmt.Sprintf("Filtered '%s', query was: '%s'", source.Name, strings.Join(args[2:], " ")))
+
+	err = context.CollectionFactory().SnapshotCollection().Add(destination)
+	if err != nil {
+		return fmt.Errorf("unable to create snapshot: %s", err)
+	}
+
+	context.Progress().Printf("\nSnapshot %s successfully filtered.\nYou can run 'aptly publish snapshot %s' to publish snapshot as Debian repository.\n", destination.Name, destination.Name)
+
+	return err
+}
+
+func makeCmdSnapshotFilter() *commander.Command {
+	cmd := &commander.Command{
+		Run:       aptlySnapshotFilter,
+		UsageLine: "filter <source> <destination> <package-query> ...",
+		Short:     "filter packages in snapshot producing another snapshot",
+		Long: `
+Command filter does filtering in snapshot <source>, producing another
+snapshot <destination>. Packages could be specified simply
+as 'package-name' or as package queries.
+
+Example:
+
+    $ aptly snapshot filter wheezy-main wheezy-required 'Priorioty (required)'
+`,
+		Flag: *flag.NewFlagSet("aptly-snapshot-filter", flag.ExitOnError),
+	}
+
+	cmd.Flag.Bool("with-deps", false, "include dependent packages as well")
+
+	return cmd
+}

cmd/snapshot_list.go

@@ -2,51 +2,11 @@ package cmd
 
 import (
 	"fmt"
+
 	"github.com/smira/aptly/deb"
 	"github.com/smira/commander"
-	"sort"
 )
 
-// Snapshot sorting methods
-const (
-	SortName = iota
-	SortTime
-)
-
-type snapshotListToSort struct {
-	list       []*deb.Snapshot
-	sortMethod int
-}
-
-func parseSortMethod(sortMethod string) (int, error) {
-	switch sortMethod {
-	case "time", "Time":
-		return SortTime, nil
-	case "name", "Name":
-		return SortName, nil
-	}
-
-	return -1, fmt.Errorf("sorting method \"%s\" unknown", sortMethod)
-}
-
-func (s snapshotListToSort) Swap(i, j int) {
-	s.list[i], s.list[j] = s.list[j], s.list[i]
-}
-
-func (s snapshotListToSort) Less(i, j int) bool {
-	switch s.sortMethod {
-	case SortName:
-		return s.list[i].Name < s.list[j].Name
-	case SortTime:
-		return s.list[i].CreatedAt.Before(s.list[j].CreatedAt)
-	}
-	panic("unknown sort method")
-}
-
-func (s snapshotListToSort) Len() int {
-	return len(s.list)
-}
-
 func aptlySnapshotList(cmd *commander.Command, args []string) error {
 	var err error
 	if len(args) != 0 {
@@ -57,33 +17,24 @@ func aptlySnapshotList(cmd *commander.Command, args []string) error {
 	raw := cmd.Flag.Lookup("raw").Value.Get().(bool)
 	sortMethodString := cmd.Flag.Lookup("sort").Value.Get().(string)
 
-	snapshotsToSort := &snapshotListToSort{}
-	snapshotsToSort.list = make([]*deb.Snapshot, context.CollectionFactory().SnapshotCollection().Len())
-	snapshotsToSort.sortMethod, err = parseSortMethod(sortMethodString)
-	if err != nil {
-		return err
-	}
-
-	i := 0
-	context.CollectionFactory().SnapshotCollection().ForEach(func(snapshot *deb.Snapshot) error {
-		snapshotsToSort.list[i] = snapshot
-		i++
-
-		return nil
-	})
-
-	sort.Sort(snapshotsToSort)
+	collection := context.CollectionFactory().SnapshotCollection()
 
 	if raw {
-		for _, snapshot := range snapshotsToSort.list {
+		collection.ForEachSorted(sortMethodString, func(snapshot *deb.Snapshot) error {
 			fmt.Printf("%s\n", snapshot.Name)
-		}
+			return nil
+		})
 	} else {
-		if len(snapshotsToSort.list) > 0 {
+		if collection.Len() > 0 {
 			fmt.Printf("List of snapshots:\n")
 
-			for _, snapshot := range snapshotsToSort.list {
+			err = collection.ForEachSorted(sortMethodString, func(snapshot *deb.Snapshot) error {
 				fmt.Printf(" * %s\n", snapshot.String())
+				return nil
+			})
+
+			if err != nil {
+				return err
 			}
 
 			fmt.Printf("\nTo get more information about snapshot, run `aptly snapshot show <name>`.\n")
@@ -91,8 +42,8 @@ func aptlySnapshotList(cmd *commander.Command, args []string) error {
 			fmt.Printf("\nNo snapshots found, create one with `aptly snapshot create...`.\n")
 		}
 	}
-	return err
 
+	return err
 }
 
 func makeCmdSnapshotList() *commander.Command {

cmd/snapshot_merge.go

@@ -2,9 +2,10 @@ package cmd
 
 import (
 	"fmt"
+	"strings"
+
 	"github.com/smira/aptly/deb"
 	"github.com/smira/commander"
-	"strings"
 )
 
 func aptlySnapshotMerge(cmd *commander.Command, args []string) error {
@@ -28,22 +29,22 @@ func aptlySnapshotMerge(cmd *commander.Command, args []string) error {
 		}
 	}
 
-	latest := context.flags.Lookup("latest").Value.Get().(bool)
-    noRemove := context.flags.Lookup("no-remove").Value.Get().(bool)
+	latest := context.Flags().Lookup("latest").Value.Get().(bool)
+	noRemove := context.Flags().Lookup("no-remove").Value.Get().(bool)
 
-    if noRemove && latest {
-        return fmt.Errorf("-no-remove and -latest can't be specified together")
-    }
+	if noRemove && latest {
+		return fmt.Errorf("-no-remove and -latest can't be specified together")
+	}
 
 	overrideMatching := !latest && !noRemove
 
 	result := sources[0].RefList()
 	for i := 1; i < len(sources); i++ {
-		result = result.Merge(sources[i].RefList(), overrideMatching)
+		result = result.Merge(sources[i].RefList(), overrideMatching, false)
 	}
 
 	if latest {
-		deb.FilterLatestRefs(result)
+		result.FilterLatestRefs()
 	}
 
 	sourceDescription := make([]string, len(sources))
@@ -84,7 +85,7 @@ Example:
 	}
 
 	cmd.Flag.Bool("latest", false, "use only the latest version of each package")
-    cmd.Flag.Bool("no-remove", false, "don't remove duplicate arch/name packages")
+	cmd.Flag.Bool("no-remove", false, "don't remove duplicate arch/name packages")
 
 	return cmd
 }

cmd/snapshot_pull.go

@@ -2,12 +2,13 @@ package cmd
 
 import (
 	"fmt"
+	"sort"
+	"strings"
+
 	"github.com/smira/aptly/deb"
 	"github.com/smira/aptly/query"
 	"github.com/smira/commander"
 	"github.com/smira/flag"
-	"sort"
-	"strings"
 )
 
 func aptlySnapshotPull(cmd *commander.Command, args []string) error {
@@ -17,9 +18,9 @@ func aptlySnapshotPull(cmd *commander.Command, args []string) error {
 		return commander.ErrCommandError
 	}
 
-	noDeps := context.flags.Lookup("no-deps").Value.Get().(bool)
-	noRemove := context.flags.Lookup("no-remove").Value.Get().(bool)
-	allMatches := context.flags.Lookup("all-matches").Value.Get().(bool)
+	noDeps := context.Flags().Lookup("no-deps").Value.Get().(bool)
+	noRemove := context.Flags().Lookup("no-remove").Value.Get().(bool)
+	allMatches := context.Flags().Lookup("all-matches").Value.Get().(bool)
 
 	// Load <name> snapshot
 	snapshot, err := context.CollectionFactory().SnapshotCollection().ByName(args[0])
@@ -91,7 +92,7 @@ func aptlySnapshotPull(cmd *commander.Command, args []string) error {
 			return fmt.Errorf("unable to parse query: %s", err)
 		}
 		// Add architecture filter
-		queries[i] = &deb.AndQuery{queries[i], archQuery}
+		queries[i] = &deb.AndQuery{L: queries[i], R: archQuery}
 	}
 
 	// Filter with dependencies as requested
@@ -129,7 +130,7 @@ func aptlySnapshotPull(cmd *commander.Command, args []string) error {
 	})
 	alreadySeen = nil
 
-	if context.flags.Lookup("dry-run").Value.Get().(bool) {
+	if context.Flags().Lookup("dry-run").Value.Get().(bool) {
 		context.Progress().Printf("\nNot creating snapshot, as dry run was requested.\n")
 	} else {
 		// Create <destination> snapshot

cmd/snapshot_rename.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+
 	"github.com/smira/aptly/deb"
 	"github.com/smira/commander"
 )

cmd/snapshot_search.go

@@ -0,0 +1,139 @@
+package cmd
+
+import (
+	"fmt"
+	"sort"
+
+	"github.com/smira/aptly/deb"
+	"github.com/smira/aptly/query"
+	"github.com/smira/commander"
+	"github.com/smira/flag"
+)
+
+func aptlySnapshotMirrorRepoSearch(cmd *commander.Command, args []string) error {
+	var (
+		err error
+		q   deb.PackageQuery
+	)
+
+	if len(args) < 1 || len(args) > 2 {
+		cmd.Usage()
+		return commander.ErrCommandError
+	}
+
+	name := args[0]
+	command := cmd.Parent.Name()
+
+	var reflist *deb.PackageRefList
+
+	if command == "snapshot" {
+		snapshot, err := context.CollectionFactory().SnapshotCollection().ByName(name)
+		if err != nil {
+			return fmt.Errorf("unable to search: %s", err)
+		}
+
+		err = context.CollectionFactory().SnapshotCollection().LoadComplete(snapshot)
+		if err != nil {
+			return fmt.Errorf("unable to search: %s", err)
+		}
+
+		reflist = snapshot.RefList()
+	} else if command == "mirror" {
+		repo, err := context.CollectionFactory().RemoteRepoCollection().ByName(name)
+		if err != nil {
+			return fmt.Errorf("unable to search: %s", err)
+		}
+
+		err = context.CollectionFactory().RemoteRepoCollection().LoadComplete(repo)
+		if err != nil {
+			return fmt.Errorf("unable to search: %s", err)
+		}
+
+		reflist = repo.RefList()
+	} else if command == "repo" {
+		repo, err := context.CollectionFactory().LocalRepoCollection().ByName(name)
+		if err != nil {
+			return fmt.Errorf("unable to search: %s", err)
+		}
+
+		err = context.CollectionFactory().LocalRepoCollection().LoadComplete(repo)
+		if err != nil {
+			return fmt.Errorf("unable to search: %s", err)
+		}
+
+		reflist = repo.RefList()
+	} else {
+		panic("unknown command")
+	}
+
+	list, err := deb.NewPackageListFromRefList(reflist, context.CollectionFactory().PackageCollection(), context.Progress())
+	if err != nil {
+		return fmt.Errorf("unable to search: %s", err)
+	}
+
+	list.PrepareIndex()
+
+	if len(args) == 2 {
+		q, err = query.Parse(args[1])
+		if err != nil {
+			return fmt.Errorf("unable to search: %s", err)
+		}
+	} else {
+		q = &deb.MatchAllQuery{}
+	}
+
+	withDeps := context.Flags().Lookup("with-deps").Value.Get().(bool)
+	architecturesList := []string{}
+
+	if withDeps {
+		if len(context.ArchitecturesList()) > 0 {
+			architecturesList = context.ArchitecturesList()
+		} else {
+			architecturesList = list.Architectures(false)
+		}
+
+		sort.Strings(architecturesList)
+
+		if len(architecturesList) == 0 {
+			return fmt.Errorf("unable to determine list of architectures, please specify explicitly")
+		}
+	}
+
+	result, err := list.Filter([]deb.PackageQuery{q}, withDeps,
+		nil, context.DependencyOptions(), architecturesList)
+	if err != nil {
+		return fmt.Errorf("unable to search: %s", err)
+	}
+
+	if result.Len() == 0 {
+		return fmt.Errorf("no results")
+	}
+
+	format := context.Flags().Lookup("format").Value.String()
+	PrintPackageList(result, format)
+
+	return err
+}
+
+func makeCmdSnapshotSearch() *commander.Command {
+	cmd := &commander.Command{
+		Run:       aptlySnapshotMirrorRepoSearch,
+		UsageLine: "search <name> [<package-query>]",
+		Short:     "search snapshot for packages matching query",
+		Long: `
+Command search displays list of packages in snapshot that match package query
+
+If query is not specified, all the packages are displayed.
+
+Example:
+
+    $ aptly snapshot search wheezy-main '$Architecture (i386), Name (% *-dev)'
+`,
+		Flag: *flag.NewFlagSet("aptly-snapshot-search", flag.ExitOnError),
+	}
+
+	cmd.Flag.Bool("with-deps", false, "include dependencies into search results")
+	cmd.Flag.String("format", "", "custom format for result printing")
+
+	return cmd
+}

cmd/snapshot_show.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+
 	"github.com/smira/commander"
 	"github.com/smira/flag"
 )
@@ -29,8 +30,37 @@ func aptlySnapshotShow(cmd *commander.Command, args []string) error {
 	fmt.Printf("Created At: %s\n", snapshot.CreatedAt.Format("2006-01-02 15:04:05 MST"))
 	fmt.Printf("Description: %s\n", snapshot.Description)
 	fmt.Printf("Number of packages: %d\n", snapshot.NumPackages())
+	if len(snapshot.SourceIDs) > 0 {
+		fmt.Printf("Sources:\n")
+		for _, sourceID := range snapshot.SourceIDs {
+			var name string
+			if snapshot.SourceKind == "snapshot" {
+				source, err := context.CollectionFactory().SnapshotCollection().ByUUID(sourceID)
+				if err != nil {
+					continue
+				}
+				name = source.Name
+			} else if snapshot.SourceKind == "local" {
+				source, err := context.CollectionFactory().LocalRepoCollection().ByUUID(sourceID)
+				if err != nil {
+					continue
+				}
+				name = source.Name
+			} else if snapshot.SourceKind == "repo" {
+				source, err := context.CollectionFactory().RemoteRepoCollection().ByUUID(sourceID)
+				if err != nil {
+					continue
+				}
+				name = source.Name
+			}
 
-	withPackages := context.flags.Lookup("with-packages").Value.Get().(bool)
+			if name != "" {
+				fmt.Printf("  %s [%s]\n", name, snapshot.SourceKind)
+			}
+		}
+	}
+
+	withPackages := context.Flags().Lookup("with-packages").Value.Get().(bool)
 	if withPackages {
 		ListPackagesRefList(snapshot.RefList())
 	}

cmd/snapshot_verify.go

@@ -2,9 +2,10 @@ package cmd
 
 import (
 	"fmt"
+	"sort"
+
 	"github.com/smira/aptly/deb"
 	"github.com/smira/commander"
-	"sort"
 )
 
 func aptlySnapshotVerify(cmd *commander.Command, args []string) error {
@@ -31,25 +32,25 @@ func aptlySnapshotVerify(cmd *commander.Command, args []string) error {
 
 	packageList, err := deb.NewPackageListFromRefList(snapshots[0].RefList(), context.CollectionFactory().PackageCollection(), context.Progress())
 	if err != nil {
-		fmt.Errorf("unable to load packages: %s", err)
+		return fmt.Errorf("unable to load packages: %s", err)
 	}
 
 	sourcePackageList := deb.NewPackageList()
 	err = sourcePackageList.Append(packageList)
 	if err != nil {
-		fmt.Errorf("unable to merge sources: %s", err)
+		return fmt.Errorf("unable to merge sources: %s", err)
 	}
 
 	var pL *deb.PackageList
 	for i := 1; i < len(snapshots); i++ {
 		pL, err = deb.NewPackageListFromRefList(snapshots[i].RefList(), context.CollectionFactory().PackageCollection(), context.Progress())
 		if err != nil {
-			fmt.Errorf("unable to load packages: %s", err)
+			return fmt.Errorf("unable to load packages: %s", err)
 		}
 
 		err = sourcePackageList.Append(pL)
 		if err != nil {
-			fmt.Errorf("unable to merge sources: %s", err)
+			return fmt.Errorf("unable to merge sources: %s", err)
 		}
 	}
 

cmd/task.go

@@ -0,0 +1,15 @@
+package cmd
+
+import (
+	"github.com/smira/commander"
+)
+
+func makeCmdTask() *commander.Command {
+	return &commander.Command{
+		UsageLine: "task",
+		Short:     "manage aptly tasks",
+		Subcommands: []*commander.Command{
+			makeCmdTaskRun(),
+		},
+	}
+}

cmd/task_run.go

@@ -0,0 +1,154 @@
+package cmd
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/mattn/go-shellwords"
+	"github.com/smira/commander"
+)
+
+func aptlyTaskRun(cmd *commander.Command, args []string) error {
+	var err error
+	var cmdList [][]string
+
+	if filename := cmd.Flag.Lookup("filename").Value.Get().(string); filename != "" {
+		var text string
+		cmdArgs := []string{}
+
+		var finfo os.FileInfo
+		if finfo, err = os.Stat(filename); os.IsNotExist(err) || finfo.IsDir() {
+			return fmt.Errorf("no such file, %s", filename)
+		}
+
+		fmt.Print("Reading file...\n\n")
+
+		var file *os.File
+		file, err = os.Open(filename)
+
+		if err != nil {
+			return err
+		}
+		defer file.Close()
+
+		scanner := bufio.NewScanner(file)
+
+		for scanner.Scan() {
+			text = strings.TrimSpace(scanner.Text()) + ","
+			parsedArgs, _ := shellwords.Parse(text)
+			cmdArgs = append(cmdArgs, parsedArgs...)
+		}
+
+		if err = scanner.Err(); err != nil {
+			return err
+		}
+
+		if len(cmdArgs) == 0 {
+			return fmt.Errorf("the file is empty")
+		}
+
+		cmdList = formatCommands(cmdArgs)
+	} else if len(args) == 0 {
+		var text string
+		cmdArgs := []string{}
+
+		fmt.Println("Please enter one command per line and leave one blank when finished.")
+
+		reader := bufio.NewReader(os.Stdin)
+		for {
+			fmt.Printf("> ")
+			text, _ = reader.ReadString('\n')
+			if text == "\n" {
+				break
+			} else {
+				text = strings.TrimSpace(text) + ","
+				parsedArgs, _ := shellwords.Parse(text)
+				cmdArgs = append(cmdArgs, parsedArgs...)
+			}
+		}
+
+		if len(cmdArgs) == 0 {
+			return fmt.Errorf("nothing entered")
+		}
+
+		cmdList = formatCommands(cmdArgs)
+	} else {
+		cmdList = formatCommands(args)
+	}
+
+	commandErrored := false
+
+	for i, command := range cmdList {
+		if !commandErrored {
+			err := context.ReOpenDatabase()
+			if err != nil {
+				return fmt.Errorf("failed to reopen DB: %s", err)
+			}
+			context.Progress().ColoredPrintf("@g%d) [Running]: %s@!", (i + 1), strings.Join(command, " "))
+			context.Progress().ColoredPrintf("\n@yBegin command output: ----------------------------@!")
+			context.Progress().Flush()
+
+			returnCode := Run(RootCommand(), command, false)
+			if returnCode != 0 {
+				commandErrored = true
+			}
+			context.Progress().ColoredPrintf("\n@yEnd command output: ------------------------------@!")
+			CleanupContext()
+		} else {
+			context.Progress().ColoredPrintf("@r%d) [Skipping]: %s@!", (i + 1), strings.Join(command, " "))
+		}
+	}
+
+	if commandErrored {
+		err = fmt.Errorf("at least one command has reported an error")
+	}
+
+	return err
+}
+
+func formatCommands(args []string) [][]string {
+	var cmd []string
+	var cmdArray [][]string
+
+	for _, s := range args {
+		if sTrimmed := strings.TrimRight(s, ","); sTrimmed != s {
+			cmd = append(cmd, sTrimmed)
+			cmdArray = append(cmdArray, cmd)
+			cmd = []string{}
+		} else {
+			cmd = append(cmd, s)
+		}
+	}
+
+	if len(cmd) > 0 {
+		cmdArray = append(cmdArray, cmd)
+	}
+
+	return cmdArray
+}
+
+func makeCmdTaskRun() *commander.Command {
+	cmd := &commander.Command{
+		Run:       aptlyTaskRun,
+		UsageLine: "run -filename=<filename> | <command1>, <command2>, ...",
+		Short:     "run aptly tasks",
+		Long: `
+Command helps organise multiple aptly commands in one single aptly task, running as single thread.
+
+Example:
+
+	  $ aptly task run
+	  > repo create local
+	  > repo add local pkg1
+	  > publish repo local
+	  > serve
+	  >
+
+`,
+	}
+
+	cmd.Flag.String("filename", "", "specifies the filename that contains the commands to run")
+	return cmd
+}

cmd/version.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+
 	"github.com/smira/aptly/aptly"
 	"github.com/smira/commander"
 )

console/progress.go

@@ -2,10 +2,11 @@ package console
 
 import (
 	"fmt"
+	"strings"
+
 	"github.com/cheggaaa/pb"
 	"github.com/smira/aptly/aptly"
 	"github.com/wsxiaoys/terminal/color"
-	"strings"
 )
 
 const (
@@ -14,6 +15,8 @@ const (
 	codeHideProgress
 	codeStop
 	codeFlush
+	codeBarEnabled
+	codeBarDisabled
 )
 
 type printTask struct {
@@ -81,6 +84,8 @@ func (p *Progress) InitBar(count int64, isBytes bool) {
 			p.bar.SetUnits(pb.U_BYTES)
 			p.bar.ShowSpeed = true
 		}
+
+		p.queue <- printTask{code: codeBarEnabled}
 		p.bar.Start()
 	}
 }
@@ -91,6 +96,7 @@ func (p *Progress) ShutdownBar() {
 		return
 	}
 	p.bar.Finish()
+	p.queue <- printTask{code: codeBarDisabled}
 	p.bar = nil
 	p.queue <- printTask{code: codeHideProgress}
 }
@@ -128,19 +134,30 @@ func (p *Progress) ColoredPrintf(msg string, a ...interface{}) {
 		p.queue <- printTask{code: codePrint, message: color.Sprintf(msg, a...) + "\n"}
 	} else {
 		// stip color marks
-		var prev rune
+		var inColorMark, inCurly bool
 		msg = strings.Map(func(r rune) rune {
-			if prev == '@' {
-				prev = 0
-				if r == '@' {
-					return r
+			if inColorMark {
+				if inCurly {
+					if r == '}' {
+						inCurly = false
+						inColorMark = false
+						return -1
+					}
+				} else {
+					if r == '{' {
+						inCurly = true
+					} else if r == '@' {
+						return '@'
+					} else {
+						inColorMark = false
+					}
 				}
 				return -1
 			}
-			prev = r
-			if r == '@' {
-				return -1
 
+			if r == '@' {
+				inColorMark = true
+				return -1
 			}
 
 			return r
@@ -151,9 +168,15 @@ func (p *Progress) ColoredPrintf(msg string, a ...interface{}) {
 }
 
 func (p *Progress) worker() {
+	hasBar := false
+
 	for {
 		task := <-p.queue
 		switch task.code {
+		case codeBarEnabled:
+			hasBar = true
+		case codeBarDisabled:
+			hasBar = false
 		case codePrint:
 			if p.barShown {
 				fmt.Print("\r\033[2K")
@@ -161,7 +184,7 @@ func (p *Progress) worker() {
 			}
 			fmt.Print(task.message)
 		case codeProgress:
-			if p.bar != nil {
+			if hasBar {
 				fmt.Print("\r" + task.message)
 				p.barShown = true
 			}

console/terminal.go

@@ -1,10 +1,9 @@
-// +build !freebsd
-
 package console
 
 import (
-	"code.google.com/p/go.crypto/ssh/terminal"
 	"syscall"
+
+	"golang.org/x/crypto/ssh/terminal"
 )
 
 // RunningOnTerminal checks whether stdout is terminal

console/terminal_bsd.go

@@ -1,10 +0,0 @@
-// +build freebsd
-
-package console
-
-// RunningOnTerminal checks whether stdout is terminal
-//
-// Stub for FreeBSD, until in go1.3 terminal.IsTerminal would start working for FreeBSD
-func RunningOnTerminal() bool {
-	return false
-}

context/context.go

@@ -0,0 +1,493 @@
+// Package context provides single entry to all resources
+package context
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"runtime"
+	"runtime/pprof"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/smira/aptly/aptly"
+	"github.com/smira/aptly/console"
+	"github.com/smira/aptly/database"
+	"github.com/smira/aptly/deb"
+	"github.com/smira/aptly/files"
+	"github.com/smira/aptly/http"
+	"github.com/smira/aptly/s3"
+	"github.com/smira/aptly/swift"
+	"github.com/smira/aptly/utils"
+	"github.com/smira/commander"
+	"github.com/smira/flag"
+)
+
+// AptlyContext is a common context shared by all commands
+type AptlyContext struct {
+	sync.Mutex
+
+	flags, globalFlags *flag.FlagSet
+	configLoaded       bool
+
+	progress          aptly.Progress
+	downloader        aptly.Downloader
+	database          database.Storage
+	packagePool       aptly.PackagePool
+	publishedStorages map[string]aptly.PublishedStorage
+	collectionFactory *deb.CollectionFactory
+	dependencyOptions int
+	architecturesList []string
+	// Debug features
+	fileCPUProfile *os.File
+	fileMemProfile *os.File
+	fileMemStats   *os.File
+}
+
+// Check interface
+var _ aptly.PublishedStorageProvider = &AptlyContext{}
+
+// FatalError is type for panicking to abort execution with non-zero
+// exit code and print meaningful explanation
+type FatalError struct {
+	ReturnCode int
+	Message    string
+}
+
+// Fatal panics and aborts execution with exit code 1
+func Fatal(err error) {
+	returnCode := 1
+	if err == commander.ErrFlagError || err == commander.ErrCommandError {
+		returnCode = 2
+	}
+	panic(&FatalError{ReturnCode: returnCode, Message: err.Error()})
+}
+
+// Config loads and returns current configuration
+func (context *AptlyContext) Config() *utils.ConfigStructure {
+	context.Lock()
+	defer context.Unlock()
+
+	return context.config()
+}
+
+func (context *AptlyContext) config() *utils.ConfigStructure {
+	if !context.configLoaded {
+		var err error
+
+		configLocation := context.globalFlags.Lookup("config").Value.String()
+		if configLocation != "" {
+			err = utils.LoadConfig(configLocation, &utils.Config)
+
+			if err != nil {
+				Fatal(err)
+			}
+		} else {
+			configLocations := []string{
+				filepath.Join(os.Getenv("HOME"), ".aptly.conf"),
+				"/etc/aptly.conf",
+			}
+
+			for _, configLocation := range configLocations {
+				err = utils.LoadConfig(configLocation, &utils.Config)
+				if err == nil {
+					break
+				}
+				if !os.IsNotExist(err) {
+					Fatal(fmt.Errorf("error loading config file %s: %s", configLocation, err))
+				}
+			}
+
+			if err != nil {
+				fmt.Fprintf(os.Stderr, "Config file not found, creating default config at %s\n\n", configLocations[0])
+				utils.SaveConfig(configLocations[0], &utils.Config)
+			}
+		}
+
+		context.configLoaded = true
+
+	}
+	return &utils.Config
+}
+
+// LookupOption checks boolean flag with default (usually config) and command-line
+// setting
+func (context *AptlyContext) LookupOption(defaultValue bool, name string) (result bool) {
+	context.Lock()
+	defer context.Unlock()
+
+	return context.lookupOption(defaultValue, name)
+}
+
+func (context *AptlyContext) lookupOption(defaultValue bool, name string) (result bool) {
+	result = defaultValue
+
+	if context.globalFlags.IsSet(name) {
+		result = context.globalFlags.Lookup(name).Value.Get().(bool)
+	}
+
+	return
+}
+
+// DependencyOptions calculates options related to dependecy handling
+func (context *AptlyContext) DependencyOptions() int {
+	context.Lock()
+	defer context.Unlock()
+
+	if context.dependencyOptions == -1 {
+		context.dependencyOptions = 0
+		if context.lookupOption(context.config().DepFollowSuggests, "dep-follow-suggests") {
+			context.dependencyOptions |= deb.DepFollowSuggests
+		}
+		if context.lookupOption(context.config().DepFollowRecommends, "dep-follow-recommends") {
+			context.dependencyOptions |= deb.DepFollowRecommends
+		}
+		if context.lookupOption(context.config().DepFollowAllVariants, "dep-follow-all-variants") {
+			context.dependencyOptions |= deb.DepFollowAllVariants
+		}
+		if context.lookupOption(context.config().DepFollowSource, "dep-follow-source") {
+			context.dependencyOptions |= deb.DepFollowSource
+		}
+	}
+
+	return context.dependencyOptions
+}
+
+// ArchitecturesList returns list of architectures fixed via command line or config
+func (context *AptlyContext) ArchitecturesList() []string {
+	context.Lock()
+	defer context.Unlock()
+
+	if context.architecturesList == nil {
+		context.architecturesList = context.config().Architectures
+		optionArchitectures := context.globalFlags.Lookup("architectures").Value.String()
+		if optionArchitectures != "" {
+			context.architecturesList = strings.Split(optionArchitectures, ",")
+		}
+	}
+
+	return context.architecturesList
+}
+
+// Progress creates or returns Progress object
+func (context *AptlyContext) Progress() aptly.Progress {
+	context.Lock()
+	defer context.Unlock()
+
+	return context._progress()
+}
+
+func (context *AptlyContext) _progress() aptly.Progress {
+	if context.progress == nil {
+		context.progress = console.NewProgress()
+		context.progress.Start()
+	}
+
+	return context.progress
+}
+
+// Downloader returns instance of current downloader
+func (context *AptlyContext) Downloader() aptly.Downloader {
+	context.Lock()
+	defer context.Unlock()
+
+	if context.downloader == nil {
+		var downloadLimit int64
+		limitFlag := context.flags.Lookup("download-limit")
+		if limitFlag != nil {
+			downloadLimit = limitFlag.Value.Get().(int64)
+		}
+		if downloadLimit == 0 {
+			downloadLimit = context.config().DownloadLimit
+		}
+		context.downloader = http.NewDownloader(context.config().DownloadConcurrency,
+			downloadLimit*1024, context._progress())
+	}
+
+	return context.downloader
+}
+
+// DBPath builds path to database
+func (context *AptlyContext) DBPath() string {
+	context.Lock()
+	defer context.Unlock()
+
+	return context.dbPath()
+}
+
+// DBPath builds path to database
+func (context *AptlyContext) dbPath() string {
+	return filepath.Join(context.config().RootDir, "db")
+}
+
+// Database opens and returns current instance of database
+func (context *AptlyContext) Database() (database.Storage, error) {
+	context.Lock()
+	defer context.Unlock()
+
+	return context._database()
+}
+
+func (context *AptlyContext) _database() (database.Storage, error) {
+	if context.database == nil {
+		var err error
+
+		context.database, err = database.OpenDB(context.dbPath())
+		if err != nil {
+			return nil, fmt.Errorf("can't open database: %s", err)
+		}
+	}
+
+	return context.database, nil
+}
+
+// CloseDatabase closes the db temporarily
+func (context *AptlyContext) CloseDatabase() error {
+	context.Lock()
+	defer context.Unlock()
+
+	if context.database == nil {
+		return nil
+	}
+
+	return context.database.Close()
+}
+
+// ReOpenDatabase reopens the db after close
+func (context *AptlyContext) ReOpenDatabase() error {
+	context.Lock()
+	defer context.Unlock()
+
+	if context.database == nil {
+		return nil
+	}
+
+	const MaxTries = 10
+	const Delay = 10 * time.Second
+
+	for try := 0; try < MaxTries; try++ {
+		err := context.database.ReOpen()
+		if err == nil || strings.Index(err.Error(), "resource temporarily unavailable") == -1 {
+			return err
+		}
+		context._progress().Printf("Unable to reopen database, sleeping %s\n", Delay)
+		<-time.After(Delay)
+	}
+
+	return fmt.Errorf("unable to reopen the DB, maximum number of retries reached")
+}
+
+// CollectionFactory builds factory producing all kinds of collections
+func (context *AptlyContext) CollectionFactory() *deb.CollectionFactory {
+	context.Lock()
+	defer context.Unlock()
+
+	if context.collectionFactory == nil {
+		db, err := context._database()
+		if err != nil {
+			Fatal(err)
+		}
+		context.collectionFactory = deb.NewCollectionFactory(db)
+	}
+
+	return context.collectionFactory
+}
+
+// PackagePool returns instance of PackagePool
+func (context *AptlyContext) PackagePool() aptly.PackagePool {
+	context.Lock()
+	defer context.Unlock()
+
+	if context.packagePool == nil {
+		context.packagePool = files.NewPackagePool(context.config().RootDir)
+	}
+
+	return context.packagePool
+}
+
+// GetPublishedStorage returns instance of PublishedStorage
+func (context *AptlyContext) GetPublishedStorage(name string) aptly.PublishedStorage {
+	context.Lock()
+	defer context.Unlock()
+
+	publishedStorage, ok := context.publishedStorages[name]
+	if !ok {
+		if name == "" {
+			publishedStorage = files.NewPublishedStorage(context.config().RootDir)
+		} else if strings.HasPrefix(name, "s3:") {
+			params, ok := context.config().S3PublishRoots[name[3:]]
+			if !ok {
+				Fatal(fmt.Errorf("published S3 storage %v not configured", name[3:]))
+			}
+
+			var err error
+			publishedStorage, err = s3.NewPublishedStorage(
+				params.AccessKeyID, params.SecretAccessKey, params.SessionToken,
+				params.Region, params.Endpoint, params.Bucket, params.ACL, params.Prefix, params.StorageClass,
+				params.EncryptionMethod, params.PlusWorkaround, params.DisableMultiDel,
+				params.ForceSigV2, params.Debug)
+			if err != nil {
+				Fatal(err)
+			}
+		} else if strings.HasPrefix(name, "swift:") {
+			params, ok := context.config().SwiftPublishRoots[name[6:]]
+			if !ok {
+				Fatal(fmt.Errorf("published Swift storage %v not configured", name[6:]))
+			}
+
+			var err error
+			publishedStorage, err = swift.NewPublishedStorage(params.UserName, params.Password,
+				params.AuthURL, params.Tenant, params.TenantID, params.Domain, params.DomainID, params.TenantDomain, params.TenantDomainID, params.Container, params.Prefix)
+			if err != nil {
+				Fatal(err)
+			}
+		} else {
+			Fatal(fmt.Errorf("unknown published storage format: %v", name))
+		}
+		context.publishedStorages[name] = publishedStorage
+	}
+
+	return publishedStorage
+}
+
+// UploadPath builds path to upload storage
+func (context *AptlyContext) UploadPath() string {
+	return filepath.Join(context.Config().RootDir, "upload")
+}
+
+// UpdateFlags sets internal copy of flags in the context
+func (context *AptlyContext) UpdateFlags(flags *flag.FlagSet) {
+	context.Lock()
+	defer context.Unlock()
+
+	context.flags = flags
+}
+
+// Flags returns current command flags
+func (context *AptlyContext) Flags() *flag.FlagSet {
+	context.Lock()
+	defer context.Unlock()
+
+	return context.flags
+}
+
+// GlobalFlags returns flags passed to all commands
+func (context *AptlyContext) GlobalFlags() *flag.FlagSet {
+	context.Lock()
+	defer context.Unlock()
+
+	return context.globalFlags
+}
+
+// Shutdown shuts context down
+func (context *AptlyContext) Shutdown() {
+	context.Lock()
+	defer context.Unlock()
+
+	if aptly.EnableDebug {
+		if context.fileMemProfile != nil {
+			pprof.WriteHeapProfile(context.fileMemProfile)
+			context.fileMemProfile.Close()
+			context.fileMemProfile = nil
+		}
+		if context.fileCPUProfile != nil {
+			pprof.StopCPUProfile()
+			context.fileCPUProfile.Close()
+			context.fileCPUProfile = nil
+		}
+		if context.fileMemProfile != nil {
+			context.fileMemProfile.Close()
+			context.fileMemProfile = nil
+		}
+	}
+	if context.database != nil {
+		context.database.Close()
+		context.database = nil
+	}
+	if context.downloader != nil {
+		context.downloader.Abort()
+		context.downloader = nil
+	}
+	if context.progress != nil {
+		context.progress.Shutdown()
+		context.progress = nil
+	}
+}
+
+// Cleanup does partial shutdown of context
+func (context *AptlyContext) Cleanup() {
+	context.Lock()
+	defer context.Unlock()
+
+	if context.downloader != nil {
+		context.downloader.Shutdown()
+		context.downloader = nil
+	}
+	if context.progress != nil {
+		context.progress.Shutdown()
+		context.progress = nil
+	}
+}
+
+// NewContext initializes context with default settings
+func NewContext(flags *flag.FlagSet) (*AptlyContext, error) {
+	var err error
+
+	context := &AptlyContext{
+		flags:             flags,
+		globalFlags:       flags,
+		dependencyOptions: -1,
+		publishedStorages: map[string]aptly.PublishedStorage{},
+	}
+
+	if aptly.EnableDebug {
+		cpuprofile := flags.Lookup("cpuprofile").Value.String()
+		if cpuprofile != "" {
+			context.fileCPUProfile, err = os.Create(cpuprofile)
+			if err != nil {
+				return nil, err
+			}
+			pprof.StartCPUProfile(context.fileCPUProfile)
+		}
+
+		memprofile := flags.Lookup("memprofile").Value.String()
+		if memprofile != "" {
+			context.fileMemProfile, err = os.Create(memprofile)
+			if err != nil {
+				return nil, err
+			}
+		}
+
+		memstats := flags.Lookup("memstats").Value.String()
+		if memstats != "" {
+			interval := flags.Lookup("meminterval").Value.Get().(time.Duration)
+
+			context.fileMemStats, err = os.Create(memstats)
+			if err != nil {
+				return nil, err
+			}
+
+			context.fileMemStats.WriteString("# Time\tHeapSys\tHeapAlloc\tHeapIdle\tHeapReleased\n")
+
+			go func() {
+				var stats runtime.MemStats
+
+				start := time.Now().UnixNano()
+
+				for {
+					runtime.ReadMemStats(&stats)
+					if context.fileMemStats != nil {
+						context.fileMemStats.WriteString(fmt.Sprintf("%d\t%d\t%d\t%d\t%d\n",
+							(time.Now().UnixNano()-start)/1000000, stats.HeapSys, stats.HeapAlloc, stats.HeapIdle, stats.HeapReleased))
+						time.Sleep(interval)
+					} else {
+						break
+					}
+				}
+			}()
+		}
+	}
+
+	return context, nil
+}

database/leveldb.go

@@ -4,6 +4,9 @@ package database
 import (
 	"bytes"
 	"errors"
+	"io/ioutil"
+	"os"
+
 	"github.com/syndtr/goleveldb/leveldb"
 	"github.com/syndtr/goleveldb/leveldb/filter"
 	"github.com/syndtr/goleveldb/leveldb/opt"
@@ -16,20 +19,29 @@ var (
 	ErrNotFound = errors.New("key not found")
 )
 
+// StorageProcessor is a function to process one single storage entry
+type StorageProcessor func(key []byte, value []byte) error
+
 // Storage is an interface to KV storage
 type Storage interface {
+	CreateTemporary() (Storage, error)
 	Get(key []byte) ([]byte, error)
 	Put(key []byte, value []byte) error
 	Delete(key []byte) error
+	HasPrefix(prefix []byte) bool
+	ProcessByPrefix(prefix []byte, proc StorageProcessor) error
 	KeysByPrefix(prefix []byte) [][]byte
 	FetchByPrefix(prefix []byte) [][]byte
 	Close() error
+	ReOpen() error
 	StartBatch()
 	FinishBatch() error
 	CompactDB() error
+	Drop() error
 }
 
 type levelDB struct {
+	path  string
 	db    *leveldb.DB
 	batch *leveldb.Batch
 }
@@ -39,22 +51,33 @@ var (
 	_ Storage = &levelDB{}
 )
 
-// OpenDB opens (creates) LevelDB database
-func OpenDB(path string) (Storage, error) {
+func internalOpen(path string, throttleCompaction bool) (*leveldb.DB, error) {
 	o := &opt.Options{
-		Filter: filter.NewBloomFilter(10),
+		Filter:                 filter.NewBloomFilter(10),
+		OpenFilesCacheCapacity: 256,
 	}
 
-	db, err := leveldb.OpenFile(path, o)
+	if throttleCompaction {
+		o.CompactionL0Trigger = 32
+		o.WriteL0PauseTrigger = 96
+		o.WriteL0SlowdownTrigger = 64
+	}
+
+	return leveldb.OpenFile(path, o)
+}
+
+// OpenDB opens (creates) LevelDB database
+func OpenDB(path string) (Storage, error) {
+	db, err := internalOpen(path, false)
 	if err != nil {
 		return nil, err
 	}
-	return &levelDB{db: db}, nil
+	return &levelDB{db: db, path: path}, nil
 }
 
 // RecoverDB recovers LevelDB database from corruption
 func RecoverDB(path string) error {
-	stor, err := storage.OpenFile(path)
+	stor, err := storage.OpenFile(path, false)
 	if err != nil {
 		return err
 	}
@@ -70,6 +93,20 @@ func RecoverDB(path string) error {
 	return nil
 }
 
+// CreateTemporary creates new DB of the same type in temp dir
+func (l *levelDB) CreateTemporary() (Storage, error) {
+	tempdir, err := ioutil.TempDir("", "aptly")
+	if err != nil {
+		return nil, err
+	}
+
+	db, err := internalOpen(tempdir, true)
+	if err != nil {
+		return nil, err
+	}
+	return &levelDB{db: db, path: tempdir}, nil
+}
+
 // Get key value from database
 func (l *levelDB) Get(key []byte) ([]byte, error) {
 	value, err := l.db.Get(key, nil)
@@ -95,7 +132,7 @@ func (l *levelDB) Put(key []byte, value []byte) error {
 			return err
 		}
 	} else {
-		if bytes.Compare(old, value) == 0 {
+		if bytes.Equal(old, value) {
 			return nil
 		}
 	}
@@ -145,9 +182,48 @@ func (l *levelDB) FetchByPrefix(prefix []byte) [][]byte {
 	return result
 }
 
+// HasPrefix checks whether it can find any key with given prefix and returns true if one exists
+func (l *levelDB) HasPrefix(prefix []byte) bool {
+	iterator := l.db.NewIterator(nil, nil)
+	defer iterator.Release()
+	return iterator.Seek(prefix) && bytes.HasPrefix(iterator.Key(), prefix)
+}
+
+// ProcessByPrefix iterates through all entries where key starts with prefix and calls
+// StorageProcessor on key value pair
+func (l *levelDB) ProcessByPrefix(prefix []byte, proc StorageProcessor) error {
+	iterator := l.db.NewIterator(nil, nil)
+	defer iterator.Release()
+
+	for ok := iterator.Seek(prefix); ok && bytes.HasPrefix(iterator.Key(), prefix); ok = iterator.Next() {
+		err := proc(iterator.Key(), iterator.Value())
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
 // Close finishes DB work
 func (l *levelDB) Close() error {
-	return l.db.Close()
+	if l.db == nil {
+		return nil
+	}
+	err := l.db.Close()
+	l.db = nil
+	return err
+}
+
+// Reopen tries to re-open the database
+func (l *levelDB) ReOpen() error {
+	if l.db != nil {
+		return nil
+	}
+
+	var err error
+	l.db, err = internalOpen(l.path, false)
+	return err
 }
 
 // StartBatch starts batch processing of keys
@@ -174,3 +250,12 @@ func (l *levelDB) FinishBatch() error {
 func (l *levelDB) CompactDB() error {
 	return l.db.CompactRange(util.Range{})
 }
+
+// Drop removes all the DB files (DANGEROUS!)
+func (l *levelDB) Drop() error {
+	if l.db != nil {
+		return errors.New("DB is still open")
+	}
+
+	return os.RemoveAll(l.path)
+}

database/leveldb_test.go

@@ -1,8 +1,9 @@
 package database
 
 import (
-	. "launchpad.net/gocheck"
 	"testing"
+
+	. "gopkg.in/check.v1"
 )
 
 // Launch gocheck tests
@@ -70,6 +71,29 @@ func (s *LevelDBSuite) TestGetPut(c *C) {
 	c.Assert(result, DeepEquals, value)
 }
 
+func (s *LevelDBSuite) TestTemporaryDelete(c *C) {
+	var (
+		key   = []byte("key")
+		value = []byte("value")
+	)
+
+	err := s.db.Put(key, value)
+	c.Assert(err, IsNil)
+
+	temp, err := s.db.CreateTemporary()
+	c.Assert(err, IsNil)
+
+	c.Check(s.db.HasPrefix([]byte(nil)), Equals, true)
+	c.Check(temp.HasPrefix([]byte(nil)), Equals, false)
+
+	err = temp.Put(key, value)
+	c.Assert(err, IsNil)
+	c.Check(temp.HasPrefix([]byte(nil)), Equals, true)
+
+	c.Assert(temp.Close(), IsNil)
+	c.Assert(temp.Drop(), IsNil)
+}
+
 func (s *LevelDBSuite) TestDelete(c *C) {
 	var (
 		key   = []byte("key")
@@ -106,10 +130,41 @@ func (s *LevelDBSuite) TestByPrefix(c *C) {
 	c.Check(s.db.FetchByPrefix([]byte{0x80}), DeepEquals, [][]byte{{0x01}, {0x02}, {0x03}})
 	c.Check(s.db.KeysByPrefix([]byte{0x80}), DeepEquals, [][]byte{{0x80, 0x01}, {0x80, 0x02}, {0x80, 0x03}})
 
+	keys := [][]byte{}
+	values := [][]byte{}
+
+	c.Check(s.db.ProcessByPrefix([]byte{0x80}, func(k, v []byte) error {
+		keys = append(keys, append([]byte(nil), k...))
+		values = append(values, append([]byte(nil), v...))
+		return nil
+	}), IsNil)
+
+	c.Check(values, DeepEquals, [][]byte{{0x01}, {0x02}, {0x03}})
+	c.Check(keys, DeepEquals, [][]byte{{0x80, 0x01}, {0x80, 0x02}, {0x80, 0x03}})
+
+	c.Check(s.db.ProcessByPrefix([]byte{0x80}, func(k, v []byte) error {
+		return ErrNotFound
+	}), Equals, ErrNotFound)
+
+	c.Check(s.db.ProcessByPrefix([]byte{0xa0}, func(k, v []byte) error {
+		return ErrNotFound
+	}), IsNil)
+
 	c.Check(s.db.FetchByPrefix([]byte{0xa0}), DeepEquals, [][]byte{})
 	c.Check(s.db.KeysByPrefix([]byte{0xa0}), DeepEquals, [][]byte{})
 }
 
+func (s *LevelDBSuite) TestHasPrefix(c *C) {
+	c.Check(s.db.HasPrefix([]byte(nil)), Equals, false)
+	c.Check(s.db.HasPrefix([]byte{0x80}), Equals, false)
+
+	s.db.Put([]byte{0x80, 0x01}, []byte{0x01})
+
+	c.Check(s.db.HasPrefix([]byte(nil)), Equals, true)
+	c.Check(s.db.HasPrefix([]byte{0x80}), Equals, true)
+	c.Check(s.db.HasPrefix([]byte{0x79}), Equals, false)
+}
+
 func (s *LevelDBSuite) TestBatch(c *C) {
 	var (
 		key    = []byte("key")
@@ -155,3 +210,23 @@ func (s *LevelDBSuite) TestCompactDB(c *C) {
 
 	c.Check(s.db.CompactDB(), IsNil)
 }
+
+func (s *LevelDBSuite) TestReOpen(c *C) {
+	var (
+		key   = []byte("key")
+		value = []byte("value")
+	)
+
+	err := s.db.Put(key, value)
+	c.Assert(err, IsNil)
+
+	err = s.db.Close()
+	c.Assert(err, IsNil)
+
+	err = s.db.ReOpen()
+	c.Assert(err, IsNil)
+
+	result, err := s.db.Get(key)
+	c.Assert(err, IsNil)
+	c.Assert(result, DeepEquals, value)
+}

deb/changes.go

@@ -0,0 +1,292 @@
+package deb
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"sort"
+	"strings"
+
+	"github.com/smira/aptly/aptly"
+	"github.com/smira/aptly/utils"
+)
+
+// Changes is a result of .changes file parsing
+type Changes struct {
+	Changes               string
+	Distribution          string
+	Files                 PackageFiles
+	BasePath, ChangesName string
+	TempDir               string
+	Source                string
+	Binary                []string
+	Architectures         []string
+	Stanza                Stanza
+	SignatureKeys         []utils.GpgKey
+}
+
+// NewChanges moves .changes file into temporary directory and creates Changes structure
+func NewChanges(path string) (*Changes, error) {
+	var err error
+
+	c := &Changes{
+		BasePath:    filepath.Dir(path),
+		ChangesName: filepath.Base(path),
+	}
+
+	c.TempDir, err = ioutil.TempDir(os.TempDir(), "aptly")
+	if err != nil {
+		return nil, err
+	}
+
+	// copy .changes file into temporary directory
+	err = utils.CopyFile(filepath.Join(c.BasePath, c.ChangesName), filepath.Join(c.TempDir, c.ChangesName))
+	if err != nil {
+		return nil, err
+	}
+
+	return c, nil
+}
+
+// VerifyAndParse does optional signature verification and parses changes files
+func (c *Changes) VerifyAndParse(acceptUnsigned, ignoreSignature bool, verifier utils.Verifier) error {
+	input, err := os.Open(filepath.Join(c.TempDir, c.ChangesName))
+	if err != nil {
+		return err
+	}
+	defer input.Close()
+
+	isClearSigned, err := verifier.IsClearSigned(input)
+	if err != nil {
+		return err
+	}
+
+	input.Seek(0, 0)
+
+	if !isClearSigned && !acceptUnsigned {
+		return fmt.Errorf(".changes file is not signed and unsigned processing hasn't been enabled")
+	}
+
+	if isClearSigned && !ignoreSignature {
+		keyInfo, err := verifier.VerifyClearsigned(input, false)
+		if err != nil {
+			return err
+		}
+		input.Seek(0, 0)
+
+		c.SignatureKeys = keyInfo.GoodKeys
+	}
+
+	var text *os.File
+
+	if isClearSigned {
+		text, err = verifier.ExtractClearsigned(input)
+		if err != nil {
+			return err
+		}
+		defer text.Close()
+	} else {
+		text = input
+	}
+
+	reader := NewControlFileReader(text)
+	c.Stanza, err = reader.ReadStanza(false)
+	if err != nil {
+		return err
+	}
+
+	c.Distribution = c.Stanza["Distribution"]
+	c.Changes = c.Stanza["Changes"]
+	c.Source = c.Stanza["Source"]
+	c.Binary = strings.Fields(c.Stanza["Binary"])
+	c.Architectures = strings.Fields(c.Stanza["Architecture"])
+
+	c.Files, err = c.Files.ParseSumFields(c.Stanza)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// Prepare creates temporary directory, copies file there and verifies checksums
+func (c *Changes) Prepare() error {
+	var err error
+
+	for _, file := range c.Files {
+		if filepath.Dir(file.Filename) != "." {
+			return fmt.Errorf("file is not in the same folder as .changes file: %s", file.Filename)
+		}
+
+		file.Filename = filepath.Base(file.Filename)
+
+		err = utils.CopyFile(filepath.Join(c.BasePath, file.Filename), filepath.Join(c.TempDir, file.Filename))
+		if err != nil {
+			return err
+		}
+	}
+
+	for _, file := range c.Files {
+		var info utils.ChecksumInfo
+
+		info, err = utils.ChecksumsForFile(filepath.Join(c.TempDir, file.Filename))
+		if err != nil {
+			return err
+		}
+
+		if info.Size != file.Checksums.Size {
+			return fmt.Errorf("size mismatch: expected %v != obtained %v", file.Checksums.Size, info.Size)
+		}
+
+		if info.MD5 != file.Checksums.MD5 {
+			return fmt.Errorf("checksum mismatch MD5: expected %v != obtained %v", file.Checksums.MD5, info.MD5)
+		}
+
+		if info.SHA1 != file.Checksums.SHA1 {
+			return fmt.Errorf("checksum mismatch SHA1: expected %v != obtained %v", file.Checksums.SHA1, info.SHA1)
+		}
+
+		if info.SHA256 != file.Checksums.SHA256 {
+			return fmt.Errorf("checksum mismatch SHA256 expected %v != obtained %v", file.Checksums.SHA256, info.SHA256)
+		}
+	}
+
+	return nil
+}
+
+// Cleanup removes all temporary files
+func (c *Changes) Cleanup() error {
+	if c.TempDir == "" {
+		return nil
+	}
+
+	return os.RemoveAll(c.TempDir)
+}
+
+// PackageQuery returns query that every package should match to be included
+func (c *Changes) PackageQuery() (PackageQuery, error) {
+	var archQuery PackageQuery = &FieldQuery{Field: "$Architecture", Relation: VersionEqual, Value: ""}
+	for _, arch := range c.Architectures {
+		archQuery = &OrQuery{L: &FieldQuery{Field: "$Architecture", Relation: VersionEqual, Value: arch}, R: archQuery}
+	}
+
+	// if c.Source is empty, this would never match
+	sourceQuery := &AndQuery{
+		L: &FieldQuery{Field: "$PackageType", Relation: VersionEqual, Value: "source"},
+		R: &FieldQuery{Field: "Name", Relation: VersionEqual, Value: c.Source},
+	}
+
+	var binaryQuery PackageQuery
+	if len(c.Binary) > 0 {
+		binaryQuery = &FieldQuery{Field: "Name", Relation: VersionEqual, Value: c.Binary[0]}
+		// matching debug ddeb packages, they're not present in the Binary field
+		var ddebQuery PackageQuery
+		ddebQuery = &FieldQuery{Field: "Name", Relation: VersionEqual, Value: fmt.Sprintf("%s-dbgsym", c.Binary[0])}
+
+		for _, binary := range c.Binary[1:] {
+			binaryQuery = &OrQuery{
+				L: &FieldQuery{Field: "Name", Relation: VersionEqual, Value: binary},
+				R: binaryQuery,
+			}
+			ddebQuery = &OrQuery{
+				L: &FieldQuery{Field: "Name", Relation: VersionEqual, Value: fmt.Sprintf("%s-dbgsym", binary)},
+				R: ddebQuery,
+			}
+		}
+
+		ddebQuery = &AndQuery{
+			L: &FieldQuery{Field: "Source", Relation: VersionEqual, Value: c.Source},
+			R: ddebQuery,
+		}
+
+		binaryQuery = &OrQuery{
+			L: binaryQuery,
+			R: ddebQuery,
+		}
+
+		binaryQuery = &AndQuery{
+			L: &NotQuery{Q: &FieldQuery{Field: "$PackageType", Relation: VersionEqual, Value: "source"}},
+			R: binaryQuery}
+	}
+
+	var nameQuery PackageQuery
+	if binaryQuery == nil {
+		nameQuery = sourceQuery
+	} else {
+		nameQuery = &OrQuery{L: sourceQuery, R: binaryQuery}
+	}
+
+	return &AndQuery{L: archQuery, R: nameQuery}, nil
+}
+
+// GetField implements PackageLike interface
+func (c *Changes) GetField(field string) string {
+	return c.Stanza[field]
+}
+
+// MatchesDependency implements PackageLike interface
+func (c *Changes) MatchesDependency(d Dependency) bool {
+	return false
+}
+
+// MatchesArchitecture implements PackageLike interface
+func (c *Changes) MatchesArchitecture(arch string) bool {
+	return false
+}
+
+// GetName implements PackageLike interface
+func (c *Changes) GetName() string {
+	return ""
+}
+
+// GetVersion implements PackageLike interface
+func (c *Changes) GetVersion() string {
+	return ""
+
+}
+
+// GetArchitecture implements PackageLike interface
+func (c *Changes) GetArchitecture() string {
+	return ""
+}
+
+// CollectChangesFiles walks filesystem collecting all .changes files
+func CollectChangesFiles(locations []string, reporter aptly.ResultReporter) (changesFiles, failedFiles []string) {
+	for _, location := range locations {
+		info, err2 := os.Stat(location)
+		if err2 != nil {
+			reporter.Warning("Unable to process %s: %s", location, err2)
+			failedFiles = append(failedFiles, location)
+			continue
+		}
+		if info.IsDir() {
+			err2 = filepath.Walk(location, func(path string, info os.FileInfo, err3 error) error {
+				if err3 != nil {
+					return err3
+				}
+				if info.IsDir() {
+					return nil
+				}
+
+				if strings.HasSuffix(info.Name(), ".changes") {
+					changesFiles = append(changesFiles, path)
+				}
+
+				return nil
+			})
+
+			if err2 != nil {
+				reporter.Warning("Unable to process %s: %s", location, err2)
+				failedFiles = append(failedFiles, location)
+				continue
+			}
+		} else if strings.HasSuffix(info.Name(), ".changes") {
+			changesFiles = append(changesFiles, location)
+		}
+	}
+
+	sort.Strings(changesFiles)
+
+	return
+}

deb/changes_test.go

@@ -0,0 +1,92 @@
+package deb
+
+import (
+	"os"
+	"path/filepath"
+
+	. "gopkg.in/check.v1"
+)
+
+type ChangesSuite struct {
+	Dir, Path string
+}
+
+var _ = Suite(&ChangesSuite{})
+
+func (s *ChangesSuite) SetUpTest(c *C) {
+	s.Dir = c.MkDir()
+	s.Path = filepath.Join(s.Dir, "calamares.changes")
+
+	f, err := os.Create(s.Path)
+	c.Assert(err, IsNil)
+
+	f.WriteString(changesFile)
+	f.Close()
+}
+
+func (s *ChangesSuite) TestParseAndVerify(c *C) {
+	changes, err := NewChanges(s.Path)
+	c.Assert(err, IsNil)
+
+	err = changes.VerifyAndParse(true, true, &NullVerifier{})
+	c.Check(err, IsNil)
+
+	c.Check(changes.Distribution, Equals, "sid")
+	c.Check(changes.Files, HasLen, 4)
+	c.Check(changes.Files[0].Filename, Equals, "calamares_0+git20141127.99.dsc")
+	c.Check(changes.Files[0].Checksums.Size, Equals, int64(1106))
+	c.Check(changes.Files[0].Checksums.MD5, Equals, "05fd8f3ffe8f362c5ef9bad2f936a56e")
+	c.Check(changes.Files[0].Checksums.SHA1, Equals, "79f10e955dab6eb25b7f7bae18213f367a3a0396")
+	c.Check(changes.Files[0].Checksums.SHA256, Equals, "35b3280a7b1ffe159a276128cb5c408d687318f60ecbb8ab6dedb2e49c4e82dc")
+	c.Check(changes.BasePath, Equals, s.Dir)
+	c.Check(changes.Architectures, DeepEquals, []string{"source", "amd64"})
+	c.Check(changes.Source, Equals, "calamares")
+	c.Check(changes.Binary, DeepEquals, []string{"calamares", "calamares-dbg"})
+}
+
+func (s *ChangesSuite) TestPackageQuery(c *C) {
+	changes, err := NewChanges(s.Path)
+	c.Assert(err, IsNil)
+
+	err = changes.VerifyAndParse(true, true, &NullVerifier{})
+	c.Check(err, IsNil)
+
+	q, err := changes.PackageQuery()
+	c.Check(err, IsNil)
+
+	c.Check(q.String(), Equals,
+		"(($Architecture (= amd64)) | (($Architecture (= source)) | ($Architecture (= )))), ((($PackageType (= source)), (Name (= calamares))) | ((!($PackageType (= source))), (((Name (= calamares-dbg)) | (Name (= calamares))) | ((Source (= calamares)), ((Name (= calamares-dbg-dbgsym)) | (Name (= calamares-dbgsym)))))))")
+}
+
+var changesFile = `Format: 1.8
+Date: Thu, 27 Nov 2014 13:24:53 +0000
+Source: calamares
+Binary: calamares calamares-dbg
+Architecture: source amd64
+Version: 0+git20141127.99
+Distribution: sid
+Urgency: medium
+Maintainer: Rohan Garg <rohan@kde.org>
+Changed-By: Rohan <rohan@kde.org>
+Description:
+ calamares  - distribution-independent installer framework
+ calamares-dbg - distribution-independent installer framework -- debug symbols
+Changes:
+ calamares (0+git20141127.99) sid; urgency=medium
+ .
+   * Update from git
+Checksums-Sha1:
+ 79f10e955dab6eb25b7f7bae18213f367a3a0396 1106 calamares_0+git20141127.99.dsc
+ 294c28e2c8e34e72ca9ee0d9da5c14f3bf4188db 2694800 calamares_0+git20141127.99.tar.xz
+ d6c26c04b5407c7511f61cb3e3de60c4a1d6c4ff 1698924 calamares_0+git20141127.99_amd64.deb
+ a3da632d193007b0d4a1aff73159fde1b532d7a8 12835902 calamares-dbg_0+git20141127.99_amd64.deb
+Checksums-Sha256:
+ 35b3280a7b1ffe159a276128cb5c408d687318f60ecbb8ab6dedb2e49c4e82dc 1106 calamares_0+git20141127.99.dsc
+ 5576b9caaf814564830f95561227e4f04ee87b31da22c1371aab155cbf7ce395 2694800 calamares_0+git20141127.99.tar.xz
+ 2e6e2f232ed7ffe52369928ebdf5436d90feb37840286ffba79e87d57a43a2e9 1698924 calamares_0+git20141127.99_amd64.deb
+ 8dd926080ed7bad2e2439e37e49ce12d5f1357c5041b7da4d860a1041f878a8a 12835902 calamares-dbg_0+git20141127.99_amd64.deb
+Files:
+ 05fd8f3ffe8f362c5ef9bad2f936a56e 1106 devel optional calamares_0+git20141127.99.dsc
+ 097e55c81abd8e5f30bb2eed90c2c1e9 2694800 devel optional calamares_0+git20141127.99.tar.xz
+ 827fb3b12534241e119815d331e8197b 1698924 devel optional calamares_0+git20141127.99_amd64.deb
+ e6f8ce70f564d1f68cb57758b15b13e3 12835902 debug optional calamares-dbg_0+git20141127.99_amd64.deb`

deb/collections.go

@@ -1,11 +1,14 @@
 package deb
 
 import (
+	"sync"
+
 	"github.com/smira/aptly/database"
 )
 
 // CollectionFactory is a single place to generate all desired collections
 type CollectionFactory struct {
+	*sync.Mutex
 	db             database.Storage
 	packages       *PackageCollection
 	remoteRepos    *RemoteRepoCollection
@@ -16,11 +19,21 @@ type CollectionFactory struct {
 
 // NewCollectionFactory creates new factory
 func NewCollectionFactory(db database.Storage) *CollectionFactory {
-	return &CollectionFactory{db: db}
+	return &CollectionFactory{Mutex: &sync.Mutex{}, db: db}
+}
+
+// TemporaryDB creates new temporary DB
+//
+// DB should be closed/droped after being used
+func (factory *CollectionFactory) TemporaryDB() (database.Storage, error) {
+	return factory.db.CreateTemporary()
 }
 
 // PackageCollection returns (or creates) new PackageCollection
 func (factory *CollectionFactory) PackageCollection() *PackageCollection {
+	factory.Lock()
+	defer factory.Unlock()
+
 	if factory.packages == nil {
 		factory.packages = NewPackageCollection(factory.db)
 	}
@@ -30,6 +43,9 @@ func (factory *CollectionFactory) PackageCollection() *PackageCollection {
 
 // RemoteRepoCollection returns (or creates) new RemoteRepoCollection
 func (factory *CollectionFactory) RemoteRepoCollection() *RemoteRepoCollection {
+	factory.Lock()
+	defer factory.Unlock()
+
 	if factory.remoteRepos == nil {
 		factory.remoteRepos = NewRemoteRepoCollection(factory.db)
 	}
@@ -39,6 +55,9 @@ func (factory *CollectionFactory) RemoteRepoCollection() *RemoteRepoCollection {
 
 // SnapshotCollection returns (or creates) new SnapshotCollection
 func (factory *CollectionFactory) SnapshotCollection() *SnapshotCollection {
+	factory.Lock()
+	defer factory.Unlock()
+
 	if factory.snapshots == nil {
 		factory.snapshots = NewSnapshotCollection(factory.db)
 	}
@@ -48,6 +67,9 @@ func (factory *CollectionFactory) SnapshotCollection() *SnapshotCollection {
 
 // LocalRepoCollection returns (or creates) new LocalRepoCollection
 func (factory *CollectionFactory) LocalRepoCollection() *LocalRepoCollection {
+	factory.Lock()
+	defer factory.Unlock()
+
 	if factory.localRepos == nil {
 		factory.localRepos = NewLocalRepoCollection(factory.db)
 	}
@@ -57,9 +79,24 @@ func (factory *CollectionFactory) LocalRepoCollection() *LocalRepoCollection {
 
 // PublishedRepoCollection returns (or creates) new PublishedRepoCollection
 func (factory *CollectionFactory) PublishedRepoCollection() *PublishedRepoCollection {
+	factory.Lock()
+	defer factory.Unlock()
+
 	if factory.publishedRepos == nil {
 		factory.publishedRepos = NewPublishedRepoCollection(factory.db)
 	}
 
 	return factory.publishedRepos
 }
+
+// Flush removes all references to collections, so that memory could be reclaimed
+func (factory *CollectionFactory) Flush() {
+	factory.Lock()
+	defer factory.Unlock()
+
+	factory.localRepos = nil
+	factory.snapshots = nil
+	factory.remoteRepos = nil
+	factory.publishedRepos = nil
+	factory.packages = nil
+}

deb/contents.go

@@ -0,0 +1,135 @@
+package deb
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"io"
+
+	"github.com/smira/aptly/aptly"
+	"github.com/smira/aptly/database"
+	"github.com/smira/go-uuid/uuid"
+)
+
+// ContentsIndex calculates mapping from files to packages, with sorting and aggregation
+type ContentsIndex struct {
+	db     database.Storage
+	prefix []byte
+}
+
+// NewContentsIndex creates empty ContentsIndex
+func NewContentsIndex(db database.Storage) *ContentsIndex {
+	return &ContentsIndex{
+		db:     db,
+		prefix: []byte(uuid.New()),
+	}
+}
+
+// Push adds package to contents index, calculating package contents as required
+func (index *ContentsIndex) Push(p *Package, packagePool aptly.PackagePool) error {
+	contents := p.Contents(packagePool)
+	qualifiedName := []byte(p.QualifiedName())
+
+	for _, path := range contents {
+		// for performance reasons we only write to leveldb during push.
+		// merging of qualified names per path will be done in WriteTo
+		err := index.db.Put(append(append(append(index.prefix, []byte(path)...), byte(0)), qualifiedName...), nil)
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+// Empty checks whether index contains no packages
+func (index *ContentsIndex) Empty() bool {
+	return !index.db.HasPrefix(index.prefix)
+}
+
+// WriteTo dumps sorted mapping of files to qualified package names
+func (index *ContentsIndex) WriteTo(w io.Writer) (int64, error) {
+	// For performance reasons push method wrote on key per path and package
+	// in this method we now need to merge all packages which have the same path
+	// and write it to contents index file
+
+	var n int64
+
+	nn, err := fmt.Fprintf(w, "%s %s\n", "FILE", "LOCATION")
+	n += int64(nn)
+	if err != nil {
+		return n, err
+	}
+
+	prefixLen := len(index.prefix)
+
+	var (
+		currentPath []byte
+		currentPkgs [][]byte
+	)
+
+	err = index.db.ProcessByPrefix(index.prefix, func(key []byte, value []byte) error {
+		// cut prefix
+		key = key[prefixLen:]
+
+		i := bytes.Index(key, []byte{0})
+		if i == -1 {
+			return errors.New("corrupted index entry")
+		}
+
+		path := key[:i]
+		pkg := key[i+1:]
+
+		if !bytes.Equal(path, currentPath) {
+			if currentPath != nil {
+				nn, err = w.Write(append(currentPath, ' '))
+				n += int64(nn)
+				if err != nil {
+					return err
+				}
+
+				nn, err = w.Write(bytes.Join(currentPkgs, []byte{','}))
+				n += int64(nn)
+				if err != nil {
+					return err
+				}
+
+				nn, err = w.Write([]byte{'\n'})
+				n += int64(nn)
+				if err != nil {
+					return err
+				}
+			}
+
+			currentPath = append([]byte(nil), path...)
+			currentPkgs = nil
+		}
+
+		currentPkgs = append(currentPkgs, append([]byte(nil), pkg...))
+
+		return nil
+	})
+
+	if err != nil {
+		return n, err
+	}
+
+	if currentPath != nil {
+		nn, err = w.Write(append(currentPath, ' '))
+		n += int64(nn)
+		if err != nil {
+			return n, err
+		}
+
+		nn, err = w.Write(bytes.Join(currentPkgs, []byte{','}))
+		n += int64(nn)
+		if err != nil {
+			return n, err
+		}
+
+		nn, err = w.Write([]byte{'\n'})
+		n += int64(nn)
+	}
+
+	return n, err
+}

deb/deb.go

@@ -3,13 +3,19 @@ package deb
 import (
 	"archive/tar"
 	"bufio"
+	"compress/bzip2"
 	"compress/gzip"
 	"fmt"
-	"github.com/mkrautz/goar"
-	"github.com/smira/aptly/utils"
 	"io"
 	"os"
 	"strings"
+
+	"github.com/h2non/filetype/matchers"
+	"github.com/mkrautz/goar"
+
+	"github.com/smira/aptly/utils"
+	"github.com/smira/go-xz"
+	"github.com/smira/lzma"
 )
 
 // GetControlFileFromDeb reads control file from deb package
@@ -24,16 +30,16 @@ func GetControlFileFromDeb(packageFile string) (Stanza, error) {
 	for {
 		header, err := library.Next()
 		if err == io.EOF {
-			return nil, fmt.Errorf("unable to find control.tar.gz part")
+			return nil, fmt.Errorf("unable to find control.tar.gz part in package %s", packageFile)
 		}
 		if err != nil {
-			return nil, fmt.Errorf("unable to read .deb archive: %s", err)
+			return nil, fmt.Errorf("unable to read .deb archive %s: %s", packageFile, err)
 		}
 
 		if header.Name == "control.tar.gz" {
 			ungzip, err := gzip.NewReader(library)
 			if err != nil {
-				return nil, fmt.Errorf("unable to ungzip: %s", err)
+				return nil, fmt.Errorf("unable to ungzip control file from %s. Error: %s", packageFile, err)
 			}
 			defer ungzip.Close()
 
@@ -41,15 +47,15 @@ func GetControlFileFromDeb(packageFile string) (Stanza, error) {
 			for {
 				tarHeader, err := untar.Next()
 				if err == io.EOF {
-					return nil, fmt.Errorf("unable to find control file")
+					return nil, fmt.Errorf("unable to find control file in %s", packageFile)
 				}
 				if err != nil {
-					return nil, fmt.Errorf("unable to read .tar archive: %s", err)
+					return nil, fmt.Errorf("unable to read .tar archive from %s. Error: %s", packageFile, err)
 				}
 
-				if tarHeader.Name == "./control" {
+				if tarHeader.Name == "./control" || tarHeader.Name == "control" {
 					reader := NewControlFileReader(untar)
-					stanza, err := reader.ReadStanza()
+					stanza, err := reader.ReadStanza(false)
 					if err != nil {
 						return nil, err
 					}
@@ -69,16 +75,16 @@ func GetControlFileFromDsc(dscFile string, verifier utils.Verifier) (Stanza, err
 	}
 	defer file.Close()
 
-	line, err := bufio.NewReader(file).ReadString('\n')
+	isClearSigned, err := verifier.IsClearSigned(file)
+	file.Seek(0, 0)
+
 	if err != nil {
 		return nil, err
 	}
 
-	file.Seek(0, 0)
-
 	var text *os.File
 
-	if strings.Index(line, "BEGIN PGP SIGN") != -1 {
+	if isClearSigned {
 		text, err = verifier.ExtractClearsigned(file)
 		if err != nil {
 			return nil, err
@@ -89,7 +95,7 @@ func GetControlFileFromDsc(dscFile string, verifier utils.Verifier) (Stanza, err
 	}
 
 	reader := NewControlFileReader(text)
-	stanza, err := reader.ReadStanza()
+	stanza, err := reader.ReadStanza(false)
 	if err != nil {
 		return nil, err
 	}
@@ -97,3 +103,87 @@ func GetControlFileFromDsc(dscFile string, verifier utils.Verifier) (Stanza, err
 	return stanza, nil
 
 }
+
+// GetContentsFromDeb returns list of files installed by .deb package
+func GetContentsFromDeb(packageFile string) ([]string, error) {
+	file, err := os.Open(packageFile)
+	if err != nil {
+		return nil, err
+	}
+	defer file.Close()
+
+	library := ar.NewReader(file)
+	for {
+		header, err := library.Next()
+		if err == io.EOF {
+			return nil, fmt.Errorf("unable to find data.tar.* part in %s", packageFile)
+		}
+		if err != nil {
+			return nil, fmt.Errorf("unable to read .deb archive from %s: %s", packageFile, err)
+		}
+
+		if strings.HasPrefix(header.Name, "data.tar") {
+			bufReader := bufio.NewReader(library)
+			signature, err := bufReader.Peek(270)
+
+			var isTar bool
+			if err == nil {
+				isTar = matchers.Tar(signature)
+			}
+
+			var tarInput io.Reader
+
+			switch header.Name {
+			case "data.tar":
+				tarInput = bufReader
+			case "data.tar.gz":
+				if isTar {
+					tarInput = bufReader
+				} else {
+					ungzip, err := gzip.NewReader(bufReader)
+					if err != nil {
+						return nil, fmt.Errorf("unable to ungzip data.tar.gz from %s: %s", packageFile, err)
+					}
+					defer ungzip.Close()
+					tarInput = ungzip
+				}
+			case "data.tar.bz2":
+				tarInput = bzip2.NewReader(bufReader)
+			case "data.tar.xz":
+				unxz, err := xz.NewReader(bufReader)
+				if err != nil {
+					return nil, fmt.Errorf("unable to unxz data.tar.xz from %s: %s", packageFile, err)
+				}
+				defer unxz.Close()
+				tarInput = unxz
+			case "data.tar.lzma":
+				unlzma := lzma.NewReader(bufReader)
+				defer unlzma.Close()
+				tarInput = unlzma
+			default:
+				return nil, fmt.Errorf("unsupported tar compression in %s: %s", packageFile, header.Name)
+			}
+
+			untar := tar.NewReader(tarInput)
+			var results []string
+			for {
+				tarHeader, err := untar.Next()
+				if err == io.EOF {
+					return results, nil
+				}
+				if err != nil {
+					return nil, fmt.Errorf("unable to read .tar archive from %s: %s", packageFile, err)
+				}
+
+				if tarHeader.Typeflag == tar.TypeDir {
+					continue
+				}
+
+				if strings.HasPrefix(tarHeader.Name, "./") {
+					tarHeader.Name = tarHeader.Name[2:]
+				}
+				results = append(results, tarHeader.Name)
+			}
+		}
+	}
+}

deb/deb_test.go

@@ -1,14 +1,16 @@
 package deb
 
 import (
-	"github.com/smira/aptly/utils"
-	. "launchpad.net/gocheck"
 	"path/filepath"
 	"runtime"
+
+	"github.com/smira/aptly/utils"
+
+	. "gopkg.in/check.v1"
 )
 
 type DebSuite struct {
-	debFile, dscFile, dscFileNoSign string
+	debFile, debFile2, dscFile, dscFileNoSign string
 }
 
 var _ = Suite(&DebSuite{})
@@ -16,6 +18,7 @@ var _ = Suite(&DebSuite{})
 func (s *DebSuite) SetUpSuite(c *C) {
 	_, _File, _, _ := runtime.Caller(0)
 	s.debFile = filepath.Join(filepath.Dir(_File), "../system/files/libboost-program-options-dev_1.49.0.1_i386.deb")
+	s.debFile2 = filepath.Join(filepath.Dir(_File), "../system/changes/hardlink_0.2.1_amd64.deb")
 	s.dscFile = filepath.Join(filepath.Dir(_File), "../system/files/pyspi_0.6.1-1.3.dsc")
 	s.dscFileNoSign = filepath.Join(filepath.Dir(_File), "../system/files/pyspi-0.6.1-1.3.stripped.dsc")
 }
@@ -26,7 +29,7 @@ func (s *DebSuite) TestGetControlFileFromDeb(c *C) {
 
 	_, _File, _, _ := runtime.Caller(0)
 	_, err = GetControlFileFromDeb(_File)
-	c.Check(err, ErrorMatches, "unable to read .deb archive: ar: missing global header")
+	c.Check(err, ErrorMatches, "^.+ar: missing global header")
 
 	st, err := GetControlFileFromDeb(s.debFile)
 	c.Check(err, IsNil)
@@ -54,3 +57,15 @@ func (s *DebSuite) TestGetControlFileFromDsc(c *C) {
 	c.Check(st["Version"], Equals, "0.6.1-1.4")
 	c.Check(st["Source"], Equals, "pyspi")
 }
+
+func (s *DebSuite) TestGetContentsFromDeb(c *C) {
+	contents, err := GetContentsFromDeb(s.debFile)
+	c.Check(err, IsNil)
+	c.Check(contents, DeepEquals, []string{"usr/share/doc/libboost-program-options-dev/changelog.gz",
+		"usr/share/doc/libboost-program-options-dev/copyright"})
+
+	contents, err = GetContentsFromDeb(s.debFile2)
+	c.Check(err, IsNil)
+	c.Check(contents, DeepEquals, []string{"usr/bin/hardlink", "usr/share/man/man1/hardlink.1.gz",
+		"usr/share/doc/hardlink/changelog.gz", "usr/share/doc/hardlink/copyright", "usr/share/doc/hardlink/NEWS.Debian.gz"})
+}

deb/debian_test.go

@@ -1,8 +1,9 @@
 package deb
 
 import (
-	. "launchpad.net/gocheck"
 	"testing"
+
+	. "gopkg.in/check.v1"
 )
 
 // Launch gocheck tests

deb/format.go

@@ -5,15 +5,85 @@ import (
 	"errors"
 	"io"
 	"strings"
+	"unicode"
 )
 
 // Stanza or paragraph of Debian control file
 type Stanza map[string]string
 
 // Canonical order of fields in stanza
-var canocialOrder = []string{"Package", "Origin", "Label", "Suite", "Version", "Installed-Size", "Priority", "Section", "Maintainer",
-	"Architecture", "Codename", "Date", "Architectures", "Components", "Description", "MD5sum", "MD5Sum", "SHA1", "SHA256",
-	"Archive", "Component"}
+// Taken from: http://bazaar.launchpad.net/~ubuntu-branches/ubuntu/vivid/apt/vivid/view/head:/apt-pkg/tagfile.cc#L504
+var (
+	canonicalOrderRelease = []string{
+		"Origin",
+		"Label",
+		"Archive",
+		"Suite",
+		"Version",
+		"Codename",
+		"Date",
+		"Architectures",
+		"Architecture",
+		"Components",
+		"Component",
+		"Description",
+		"MD5Sum",
+		"SHA1",
+		"SHA256",
+		"SHA512",
+	}
+
+	canonicalOrderBinary = []string{
+		"Package",
+		"Essential",
+		"Status",
+		"Priority",
+		"Section",
+		"Installed-Size",
+		"Maintainer",
+		"Original-Maintainer",
+		"Architecture",
+		"Source",
+		"Version",
+		"Replaces",
+		"Provides",
+		"Depends",
+		"Pre-Depends",
+		"Recommends",
+		"Suggests",
+		"Conflicts",
+		"Breaks",
+		"Conffiles",
+		"Filename",
+		"Size",
+		"MD5Sum",
+		"MD5sum",
+		"SHA1",
+		"SHA256",
+		"SHA512",
+		"Description",
+	}
+
+	canonicalOrderSource = []string{
+		"Package",
+		"Source",
+		"Binary",
+		"Version",
+		"Priority",
+		"Section",
+		"Maintainer",
+		"Original-Maintainer",
+		"Build-Depends",
+		"Build-Depends-Indep",
+		"Build-Conflicts",
+		"Build-Conflicts-Indep",
+		"Architecture",
+		"Standards-Version",
+		"Format",
+		"Directory",
+		"Files",
+	}
+)
 
 // Copy returns copy of Stanza
 func (s Stanza) Copy() (result Stanza) {
@@ -24,16 +94,46 @@ func (s Stanza) Copy() (result Stanza) {
 	return
 }
 
-// Write single field from Stanza to writer
-func writeField(w *bufio.Writer, field, value string) (err error) {
-	_, multiline := multilineFields[field]
+func isMultilineField(field string, isRelease bool) bool {
+	switch field {
+	case "Description":
+		return true
+	case "Files":
+		return true
+	case "Changes":
+		return true
+	case "Checksums-Sha1":
+		return true
+	case "Checksums-Sha256":
+		return true
+	case "Checksums-Sha512":
+		return true
+	case "Package-List":
+		return true
+	case "MD5Sum":
+		return isRelease
+	case "SHA1":
+		return isRelease
+	case "SHA256":
+		return isRelease
+	case "SHA512":
+		return isRelease
+	}
+	return false
+}
 
-	if !multiline {
+// Write single field from Stanza to writer
+func writeField(w *bufio.Writer, field, value string, isRelease bool) (err error) {
+	if !isMultilineField(field, isRelease) {
 		_, err = w.WriteString(field + ": " + value + "\n")
 	} else {
 		if !strings.HasSuffix(value, "\n") {
 			value = value + "\n"
 		}
+
+		if field != "Description" {
+			value = "\n" + value
+		}
 		_, err = w.WriteString(field + ":" + value)
 	}
 
@@ -41,12 +141,20 @@ func writeField(w *bufio.Writer, field, value string) (err error) {
 }
 
 // WriteTo saves stanza back to stream, modifying itself on the fly
-func (s Stanza) WriteTo(w *bufio.Writer) error {
-	for _, field := range canocialOrder {
+func (s Stanza) WriteTo(w *bufio.Writer, isSource, isRelease bool) error {
+	canonicalOrder := canonicalOrderBinary
+	if isSource {
+		canonicalOrder = canonicalOrderSource
+	}
+	if isRelease {
+		canonicalOrder = canonicalOrderRelease
+	}
+
+	for _, field := range canonicalOrder {
 		value, ok := s[field]
 		if ok {
 			delete(s, field)
-			err := writeField(w, field, value)
+			err := writeField(w, field, value, isRelease)
 			if err != nil {
 				return err
 			}
@@ -54,7 +162,7 @@ func (s Stanza) WriteTo(w *bufio.Writer) error {
 	}
 
 	for field, value := range s {
-		err := writeField(w, field, value)
+		err := writeField(w, field, value, isRelease)
 		if err != nil {
 			return err
 		}
@@ -68,18 +176,33 @@ var (
 	ErrMalformedStanza = errors.New("malformed stanza syntax")
 )
 
-var multilineFields = make(map[string]bool)
+func canonicalCase(field string) string {
+	upper := strings.ToUpper(field)
+	switch upper {
+	case "SHA1", "SHA256", "SHA512":
+		return upper
+	case "MD5SUM":
+		return "MD5Sum"
+	case "NOTAUTOMATIC":
+		return "NotAutomatic"
+	case "BUTAUTOMATICUPGRADES":
+		return "ButAutomaticUpgrades"
+	}
 
-func init() {
-	multilineFields["Description"] = true
-	multilineFields["Files"] = true
-	multilineFields["Changes"] = true
-	multilineFields["Checksums-Sha1"] = true
-	multilineFields["Checksums-Sha256"] = true
-	multilineFields["Package-List"] = true
-	multilineFields["SHA256"] = true
-	multilineFields["SHA1"] = true
-	multilineFields["MD5Sum"] = true
+	startOfWord := true
+
+	return strings.Map(func(r rune) rune {
+		if startOfWord {
+			startOfWord = false
+			return unicode.ToUpper(r)
+		}
+
+		if r == '-' {
+			startOfWord = true
+		}
+
+		return unicode.ToLower(r)
+	}, field)
 }
 
 // ControlFileReader implements reading of control files stanza by stanza
@@ -93,7 +216,7 @@ func NewControlFileReader(r io.Reader) *ControlFileReader {
 }
 
 // ReadStanza reeads one stanza from control file
-func (c *ControlFileReader) ReadStanza() (Stanza, error) {
+func (c *ControlFileReader) ReadStanza(isRelease bool) (Stanza, error) {
 	stanza := make(Stanza, 32)
 	lastField := ""
 	lastFieldMultiline := false
@@ -113,15 +236,15 @@ func (c *ControlFileReader) ReadStanza() (Stanza, error) {
 			if lastFieldMultiline {
 				stanza[lastField] += line + "\n"
 			} else {
-				stanza[lastField] += strings.TrimSpace(line)
+				stanza[lastField] += " " + strings.TrimSpace(line)
 			}
 		} else {
 			parts := strings.SplitN(line, ":", 2)
 			if len(parts) != 2 {
 				return nil, ErrMalformedStanza
 			}
-			lastField = parts[0]
-			_, lastFieldMultiline = multilineFields[lastField]
+			lastField = canonicalCase(parts[0])
+			lastFieldMultiline = isMultilineField(lastField, isRelease)
 			if lastFieldMultiline {
 				stanza[lastField] = parts[1]
 				if parts[1] != "" {

deb/format_test.go

@@ -3,8 +3,9 @@ package deb
 import (
 	"bufio"
 	"bytes"
-	. "launchpad.net/gocheck"
 	"strings"
+
+	. "gopkg.in/check.v1"
 )
 
 type ControlFileSuite struct {
@@ -83,18 +84,18 @@ func (s *ControlFileSuite) SetUpTest(c *C) {
 func (s *ControlFileSuite) TestReadStanza(c *C) {
 	r := NewControlFileReader(s.reader)
 
-	stanza1, err := r.ReadStanza()
+	stanza1, err := r.ReadStanza(false)
 	c.Assert(err, IsNil)
 
-	stanza2, err := r.ReadStanza()
+	stanza2, err := r.ReadStanza(false)
 	c.Assert(err, IsNil)
 
-	stanza3, err := r.ReadStanza()
+	stanza3, err := r.ReadStanza(false)
 	c.Assert(err, IsNil)
 	c.Assert(stanza3, IsNil)
 
 	c.Check(stanza1["Format"], Equals, "3.0 (quilt)")
-	c.Check(stanza1["Build-Depends"], Equals, "debhelper (>= 8),bash-completion (>= 1:1.1-3),libcurl4-nss-dev, libreadline-dev, libxml2-dev, libpcre3-dev, liboauth-dev, xsltproc, docbook-xsl, docbook-xml, dh-autoreconf")
+	c.Check(stanza1["Build-Depends"], Equals, "debhelper (>= 8), bash-completion (>= 1:1.1-3), libcurl4-nss-dev, libreadline-dev, libxml2-dev, libpcre3-dev, liboauth-dev, xsltproc, docbook-xsl, docbook-xml, dh-autoreconf")
 	c.Check(stanza1["Files"], Equals, " 3d5f65778bf3f89be03c313b0024b62c 1980 bti_032-1.dsc\n"+
 		" 1e0d0b693fdeebec268004ba41701baf 59773 bti_032.orig.tar.gz\n"+" ac1229a6d685023aeb8fcb0806324aa8 5065 bti_032-1.debian.tar.gz\n")
 	c.Check(len(stanza2), Equals, 20)
@@ -102,12 +103,12 @@ func (s *ControlFileSuite) TestReadStanza(c *C) {
 
 func (s *ControlFileSuite) TestReadWriteStanza(c *C) {
 	r := NewControlFileReader(s.reader)
-	stanza, err := r.ReadStanza()
+	stanza, err := r.ReadStanza(false)
 	c.Assert(err, IsNil)
 
 	buf := &bytes.Buffer{}
 	w := bufio.NewWriter(buf)
-	err = stanza.Copy().WriteTo(w)
+	err = stanza.Copy().WriteTo(w, true, false)
 	c.Assert(err, IsNil)
 	err = w.Flush()
 	c.Assert(err, IsNil)
@@ -115,19 +116,31 @@ func (s *ControlFileSuite) TestReadWriteStanza(c *C) {
 	str := buf.String()
 
 	r = NewControlFileReader(buf)
-	stanza2, err := r.ReadStanza()
+	stanza2, err := r.ReadStanza(false)
 	c.Assert(err, IsNil)
 
 	c.Assert(stanza2, DeepEquals, stanza)
 	c.Assert(strings.HasPrefix(str, "Package: "), Equals, true)
 }
 
+func (s *ControlFileSuite) TestCanonicalCase(c *C) {
+	c.Check(canonicalCase("Package"), Equals, "Package")
+	c.Check(canonicalCase("package"), Equals, "Package")
+	c.Check(canonicalCase("pAckaGe"), Equals, "Package")
+	c.Check(canonicalCase("MD5Sum"), Equals, "MD5Sum")
+	c.Check(canonicalCase("SHA1"), Equals, "SHA1")
+	c.Check(canonicalCase("SHA256"), Equals, "SHA256")
+	c.Check(canonicalCase("Package-List"), Equals, "Package-List")
+	c.Check(canonicalCase("package-list"), Equals, "Package-List")
+	c.Check(canonicalCase("packaGe-lIst"), Equals, "Package-List")
+}
+
 func (s *ControlFileSuite) BenchmarkReadStanza(c *C) {
 	for i := 0; i < c.N; i++ {
 		reader := bytes.NewBufferString(controlFile)
 		r := NewControlFileReader(reader)
 		for {
-			s, e := r.ReadStanza()
+			s, e := r.ReadStanza(false)
 			if s == nil && e == nil {
 				break
 			}

deb/graph.go

@@ -0,0 +1,138 @@
+package deb
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/awalterschulze/gographviz"
+)
+
+// BuildGraph generates graph contents from aptly object database
+func BuildGraph(collectionFactory *CollectionFactory, layout string) (gographviz.Interface, error) {
+	var err error
+
+	graph := gographviz.NewEscape()
+	graph.SetDir(true)
+	graph.SetName("aptly")
+
+	var labelStart string
+	var labelEnd string
+
+	switch layout {
+	case "vertical":
+		graph.AddAttr("aptly", "rankdir", "LR")
+		labelStart = ""
+		labelEnd = ""
+	case "horizontal":
+		fallthrough
+	default:
+		labelStart = "{"
+		labelEnd = "}"
+	}
+
+	existingNodes := map[string]bool{}
+
+	err = collectionFactory.RemoteRepoCollection().ForEach(func(repo *RemoteRepo) error {
+		err := collectionFactory.RemoteRepoCollection().LoadComplete(repo)
+		if err != nil {
+			return err
+		}
+
+		graph.AddNode("aptly", repo.UUID, map[string]string{
+			"shape":     "Mrecord",
+			"style":     "filled",
+			"fillcolor": "darkgoldenrod1",
+			"label": fmt.Sprintf("%sMirror %s|url: %s|dist: %s|comp: %s|arch: %s|pkgs: %d%s", labelStart, repo.Name, repo.ArchiveRoot,
+				repo.Distribution, strings.Join(repo.Components, ", "),
+				strings.Join(repo.Architectures, ", "), repo.NumPackages(), labelEnd),
+		})
+		existingNodes[repo.UUID] = true
+		return nil
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	err = collectionFactory.LocalRepoCollection().ForEach(func(repo *LocalRepo) error {
+		err := collectionFactory.LocalRepoCollection().LoadComplete(repo)
+		if err != nil {
+			return err
+		}
+
+		graph.AddNode("aptly", repo.UUID, map[string]string{
+			"shape":     "Mrecord",
+			"style":     "filled",
+			"fillcolor": "mediumseagreen",
+			"label": fmt.Sprintf("%sRepo %s|comment: %s|pkgs: %d%s", labelStart,
+				repo.Name, repo.Comment, repo.NumPackages(), labelEnd),
+		})
+		existingNodes[repo.UUID] = true
+		return nil
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	collectionFactory.SnapshotCollection().ForEach(func(snapshot *Snapshot) error {
+		existingNodes[snapshot.UUID] = true
+		return nil
+	})
+
+	err = collectionFactory.SnapshotCollection().ForEach(func(snapshot *Snapshot) error {
+		err := collectionFactory.SnapshotCollection().LoadComplete(snapshot)
+		if err != nil {
+			return err
+		}
+
+		description := snapshot.Description
+		if snapshot.SourceKind == "repo" {
+			description = "Snapshot from repo"
+		}
+
+		graph.AddNode("aptly", snapshot.UUID, map[string]string{
+			"shape":     "Mrecord",
+			"style":     "filled",
+			"fillcolor": "cadetblue1",
+			"label": fmt.Sprintf("%sSnapshot %s|%s|pkgs: %d%s", labelStart,
+				snapshot.Name, description, snapshot.NumPackages(), labelEnd),
+		})
+
+		if snapshot.SourceKind == "repo" || snapshot.SourceKind == "local" || snapshot.SourceKind == "snapshot" {
+			for _, uuid := range snapshot.SourceIDs {
+				_, exists := existingNodes[uuid]
+				if exists {
+					graph.AddEdge(uuid, snapshot.UUID, true, nil)
+				}
+			}
+		}
+		return nil
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	collectionFactory.PublishedRepoCollection().ForEach(func(repo *PublishedRepo) error {
+		graph.AddNode("aptly", repo.UUID, map[string]string{
+			"shape":     "Mrecord",
+			"style":     "filled",
+			"fillcolor": "darkolivegreen1",
+			"label": fmt.Sprintf("%sPublished %s/%s|comp: %s|arch: %s%s", labelStart,
+				repo.Prefix, repo.Distribution, strings.Join(repo.Components(), " "),
+				strings.Join(repo.Architectures, ", "), labelEnd),
+		})
+
+		for _, uuid := range repo.Sources {
+			_, exists := existingNodes[uuid]
+			if exists {
+				graph.AddEdge(uuid, repo.UUID, true, nil)
+			}
+		}
+
+		return nil
+	})
+
+	return graph, nil
+}

deb/import.go

@@ -0,0 +1,194 @@
+package deb
+
+import (
+	"os"
+	"path/filepath"
+	"sort"
+	"strings"
+
+	"github.com/smira/aptly/aptly"
+	"github.com/smira/aptly/utils"
+)
+
+// CollectPackageFiles walks filesystem collecting all candidates for package files
+func CollectPackageFiles(locations []string, reporter aptly.ResultReporter) (packageFiles, failedFiles []string) {
+	for _, location := range locations {
+		info, err2 := os.Stat(location)
+		if err2 != nil {
+			reporter.Warning("Unable to process %s: %s", location, err2)
+			failedFiles = append(failedFiles, location)
+			continue
+		}
+		if info.IsDir() {
+			err2 = filepath.Walk(location, func(path string, info os.FileInfo, err3 error) error {
+				if err3 != nil {
+					return err3
+				}
+				if info.IsDir() {
+					return nil
+				}
+
+				if strings.HasSuffix(info.Name(), ".deb") || strings.HasSuffix(info.Name(), ".udeb") ||
+					strings.HasSuffix(info.Name(), ".dsc") || strings.HasSuffix(info.Name(), ".ddeb") {
+					packageFiles = append(packageFiles, path)
+				}
+
+				return nil
+			})
+
+			if err2 != nil {
+				reporter.Warning("Unable to process %s: %s", location, err2)
+				failedFiles = append(failedFiles, location)
+				continue
+			}
+		} else {
+			if strings.HasSuffix(info.Name(), ".deb") || strings.HasSuffix(info.Name(), ".udeb") ||
+				strings.HasSuffix(info.Name(), ".dsc") || strings.HasSuffix(info.Name(), ".ddeb") {
+				packageFiles = append(packageFiles, location)
+			} else {
+				reporter.Warning("Unknown file extension: %s", location)
+				failedFiles = append(failedFiles, location)
+				continue
+			}
+		}
+	}
+
+	sort.Strings(packageFiles)
+
+	return
+}
+
+// ImportPackageFiles imports files into local repository
+func ImportPackageFiles(list *PackageList, packageFiles []string, forceReplace bool, verifier utils.Verifier,
+	pool aptly.PackagePool, collection *PackageCollection, reporter aptly.ResultReporter, restriction PackageQuery) (processedFiles []string, failedFiles []string, err error) {
+	if forceReplace {
+		list.PrepareIndex()
+	}
+
+	for _, file := range packageFiles {
+		var (
+			stanza Stanza
+			p      *Package
+		)
+
+		candidateProcessedFiles := []string{}
+		isSourcePackage := strings.HasSuffix(file, ".dsc")
+		isUdebPackage := strings.HasSuffix(file, ".udeb")
+
+		if isSourcePackage {
+			stanza, err = GetControlFileFromDsc(file, verifier)
+
+			if err == nil {
+				stanza["Package"] = stanza["Source"]
+				delete(stanza, "Source")
+
+				p, err = NewSourcePackageFromControlFile(stanza)
+			}
+		} else {
+			stanza, err = GetControlFileFromDeb(file)
+			if isUdebPackage {
+				p = NewUdebPackageFromControlFile(stanza)
+			} else {
+				p = NewPackageFromControlFile(stanza)
+			}
+		}
+		if err != nil {
+			reporter.Warning("Unable to read file %s: %s", file, err)
+			failedFiles = append(failedFiles, file)
+			continue
+		}
+
+		if p.Name == "" {
+			reporter.Warning("Empty package name on %s", file)
+			failedFiles = append(failedFiles, file)
+			continue
+		}
+
+		if p.Version == "" {
+			reporter.Warning("Empty version on %s", file)
+			failedFiles = append(failedFiles, file)
+			continue
+		}
+
+		if p.Architecture == "" {
+			reporter.Warning("Empty architecture on %s", file)
+			failedFiles = append(failedFiles, file)
+			continue
+		}
+
+		var checksums utils.ChecksumInfo
+		checksums, err = utils.ChecksumsForFile(file)
+		if err != nil {
+			return nil, nil, err
+		}
+
+		if isSourcePackage {
+			p.UpdateFiles(append(p.Files(), PackageFile{Filename: filepath.Base(file), Checksums: checksums}))
+		} else {
+			p.UpdateFiles([]PackageFile{{Filename: filepath.Base(file), Checksums: checksums}})
+		}
+
+		err = pool.Import(file, checksums.MD5)
+		if err != nil {
+			reporter.Warning("Unable to import file %s into pool: %s", file, err)
+			failedFiles = append(failedFiles, file)
+			continue
+		}
+
+		candidateProcessedFiles = append(candidateProcessedFiles, file)
+
+		// go over all files, except for the last one (.dsc/.deb itself)
+		for _, f := range p.Files() {
+			if filepath.Base(f.Filename) == filepath.Base(file) {
+				continue
+			}
+			sourceFile := filepath.Join(filepath.Dir(file), filepath.Base(f.Filename))
+			err = pool.Import(sourceFile, f.Checksums.MD5)
+			if err != nil {
+				reporter.Warning("Unable to import file %s into pool: %s", sourceFile, err)
+				failedFiles = append(failedFiles, file)
+				break
+			}
+
+			candidateProcessedFiles = append(candidateProcessedFiles, sourceFile)
+		}
+		if err != nil {
+			// some files haven't been imported
+			continue
+		}
+
+		if restriction != nil && !restriction.Matches(p) {
+			reporter.Warning("%s has been ignored as it doesn't match restriction", p)
+			failedFiles = append(failedFiles, file)
+			continue
+		}
+
+		err = collection.Update(p)
+		if err != nil {
+			reporter.Warning("Unable to save package %s: %s", p, err)
+			failedFiles = append(failedFiles, file)
+			continue
+		}
+
+		if forceReplace {
+			conflictingPackages := list.Search(Dependency{Pkg: p.Name, Version: p.Version, Relation: VersionEqual, Architecture: p.Architecture}, true)
+			for _, cp := range conflictingPackages {
+				reporter.Removed("%s removed due to conflict with package being added", cp)
+				list.Remove(cp)
+			}
+		}
+
+		err = list.Add(p)
+		if err != nil {
+			reporter.Warning("Unable to add package to repo %s: %s", p, err)
+			failedFiles = append(failedFiles, file)
+			continue
+		}
+
+		reporter.Added("%s added", p)
+		processedFiles = append(processedFiles, candidateProcessedFiles...)
+	}
+
+	err = nil
+	return
+}

deb/index_files.go

@@ -0,0 +1,295 @@
+package deb
+
+import (
+	"bufio"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/smira/aptly/aptly"
+	"github.com/smira/aptly/utils"
+)
+
+type indexFiles struct {
+	publishedStorage aptly.PublishedStorage
+	basePath         string
+	renameMap        map[string]string
+	generatedFiles   map[string]utils.ChecksumInfo
+	tempDir          string
+	suffix           string
+	indexes          map[string]*indexFile
+}
+
+type indexFile struct {
+	parent       *indexFiles
+	discardable  bool
+	compressable bool
+	onlyGzip     bool
+	signable     bool
+	relativePath string
+	tempFilename string
+	tempFile     *os.File
+	w            *bufio.Writer
+}
+
+func (file *indexFile) BufWriter() (*bufio.Writer, error) {
+	if file.w == nil {
+		var err error
+		file.tempFilename = filepath.Join(file.parent.tempDir, strings.Replace(file.relativePath, "/", "_", -1))
+		file.tempFile, err = os.Create(file.tempFilename)
+		if err != nil {
+			return nil, fmt.Errorf("unable to create temporary index file: %s", err)
+		}
+
+		file.w = bufio.NewWriter(file.tempFile)
+	}
+
+	return file.w, nil
+}
+
+func (file *indexFile) Finalize(signer utils.Signer) error {
+	if file.w == nil {
+		if file.discardable {
+			return nil
+		}
+		file.BufWriter()
+	}
+
+	err := file.w.Flush()
+	if err != nil {
+		file.tempFile.Close()
+		return fmt.Errorf("unable to write to index file: %s", err)
+	}
+
+	if file.compressable {
+		err = utils.CompressFile(file.tempFile, file.onlyGzip)
+		if err != nil {
+			file.tempFile.Close()
+			return fmt.Errorf("unable to compress index file: %s", err)
+		}
+	}
+
+	file.tempFile.Close()
+
+	exts := []string{""}
+	if file.compressable {
+		exts = append(exts, ".gz", ".bz2")
+		if file.onlyGzip {
+			exts = []string{".gz"}
+		}
+	}
+
+	for _, ext := range exts {
+		var checksumInfo utils.ChecksumInfo
+
+		checksumInfo, err = utils.ChecksumsForFile(file.tempFilename + ext)
+		if err != nil {
+			return fmt.Errorf("unable to collect checksums: %s", err)
+		}
+		file.parent.generatedFiles[file.relativePath+ext] = checksumInfo
+	}
+
+	err = file.parent.publishedStorage.MkDir(filepath.Dir(filepath.Join(file.parent.basePath, file.relativePath)))
+	if err != nil {
+		return fmt.Errorf("unable to create dir: %s", err)
+	}
+
+	for _, ext := range exts {
+		err = file.parent.publishedStorage.PutFile(filepath.Join(file.parent.basePath, file.relativePath+file.parent.suffix+ext),
+			file.tempFilename+ext)
+		if err != nil {
+			return fmt.Errorf("unable to publish file: %s", err)
+		}
+
+		if file.parent.suffix != "" {
+			file.parent.renameMap[filepath.Join(file.parent.basePath, file.relativePath+file.parent.suffix+ext)] =
+				filepath.Join(file.parent.basePath, file.relativePath+ext)
+		}
+	}
+
+	if file.signable && signer != nil {
+		err = signer.DetachedSign(file.tempFilename, file.tempFilename+".gpg")
+		if err != nil {
+			return fmt.Errorf("unable to detached sign file: %s", err)
+		}
+
+		err = signer.ClearSign(file.tempFilename, filepath.Join(filepath.Dir(file.tempFilename), "In"+filepath.Base(file.tempFilename)))
+		if err != nil {
+			return fmt.Errorf("unable to clearsign file: %s", err)
+		}
+
+		if file.parent.suffix != "" {
+			file.parent.renameMap[filepath.Join(file.parent.basePath, file.relativePath+file.parent.suffix+".gpg")] =
+				filepath.Join(file.parent.basePath, file.relativePath+".gpg")
+			file.parent.renameMap[filepath.Join(file.parent.basePath, "In"+file.relativePath+file.parent.suffix)] =
+				filepath.Join(file.parent.basePath, "In"+file.relativePath)
+		}
+
+		err = file.parent.publishedStorage.PutFile(filepath.Join(file.parent.basePath, file.relativePath+file.parent.suffix+".gpg"),
+			file.tempFilename+".gpg")
+		if err != nil {
+			return fmt.Errorf("unable to publish file: %s", err)
+		}
+
+		err = file.parent.publishedStorage.PutFile(filepath.Join(file.parent.basePath, "In"+file.relativePath+file.parent.suffix),
+			filepath.Join(filepath.Dir(file.tempFilename), "In"+filepath.Base(file.tempFilename)))
+		if err != nil {
+			return fmt.Errorf("unable to publish file: %s", err)
+		}
+	}
+
+	return nil
+}
+
+func newIndexFiles(publishedStorage aptly.PublishedStorage, basePath, tempDir, suffix string) *indexFiles {
+	return &indexFiles{
+		publishedStorage: publishedStorage,
+		basePath:         basePath,
+		renameMap:        make(map[string]string),
+		generatedFiles:   make(map[string]utils.ChecksumInfo),
+		tempDir:          tempDir,
+		suffix:           suffix,
+		indexes:          make(map[string]*indexFile),
+	}
+}
+
+func (files *indexFiles) PackageIndex(component, arch string, udeb bool) *indexFile {
+	if arch == "source" {
+		udeb = false
+	}
+	key := fmt.Sprintf("pi-%s-%s-%v", component, arch, udeb)
+	file, ok := files.indexes[key]
+	if !ok {
+		var relativePath string
+
+		if arch == "source" {
+			relativePath = filepath.Join(component, "source", "Sources")
+		} else {
+			if udeb {
+				relativePath = filepath.Join(component, "debian-installer", fmt.Sprintf("binary-%s", arch), "Packages")
+			} else {
+				relativePath = filepath.Join(component, fmt.Sprintf("binary-%s", arch), "Packages")
+			}
+		}
+
+		file = &indexFile{
+			parent:       files,
+			discardable:  false,
+			compressable: true,
+			signable:     false,
+			relativePath: relativePath,
+		}
+
+		files.indexes[key] = file
+	}
+
+	return file
+}
+
+func (files *indexFiles) ReleaseIndex(component, arch string, udeb bool) *indexFile {
+	if arch == "source" {
+		udeb = false
+	}
+	key := fmt.Sprintf("ri-%s-%s-%v", component, arch, udeb)
+	file, ok := files.indexes[key]
+	if !ok {
+		var relativePath string
+
+		if arch == "source" {
+			relativePath = filepath.Join(component, "source", "Release")
+		} else {
+			if udeb {
+				relativePath = filepath.Join(component, "debian-installer", fmt.Sprintf("binary-%s", arch), "Release")
+			} else {
+				relativePath = filepath.Join(component, fmt.Sprintf("binary-%s", arch), "Release")
+			}
+		}
+
+		file = &indexFile{
+			parent:       files,
+			discardable:  udeb,
+			compressable: false,
+			signable:     false,
+			relativePath: relativePath,
+		}
+
+		files.indexes[key] = file
+	}
+
+	return file
+}
+
+func (files *indexFiles) ContentsIndex(component, arch string, udeb bool) *indexFile {
+	if arch == "source" {
+		udeb = false
+	}
+	key := fmt.Sprintf("ci-%s-%s-%v", component, arch, udeb)
+	file, ok := files.indexes[key]
+	if !ok {
+		var relativePath string
+
+		if udeb {
+			relativePath = filepath.Join(component, fmt.Sprintf("Contents-udeb-%s", arch))
+		} else {
+			relativePath = filepath.Join(component, fmt.Sprintf("Contents-%s", arch))
+		}
+
+		file = &indexFile{
+			parent:       files,
+			discardable:  true,
+			compressable: true,
+			onlyGzip:     true,
+			signable:     false,
+			relativePath: relativePath,
+		}
+
+		files.indexes[key] = file
+	}
+
+	return file
+}
+
+func (files *indexFiles) ReleaseFile() *indexFile {
+	return &indexFile{
+		parent:       files,
+		discardable:  false,
+		compressable: false,
+		signable:     true,
+		relativePath: "Release",
+	}
+}
+
+func (files *indexFiles) FinalizeAll(progress aptly.Progress) (err error) {
+	if progress != nil {
+		progress.InitBar(int64(len(files.indexes)), false)
+		defer progress.ShutdownBar()
+	}
+
+	for _, file := range files.indexes {
+		err = file.Finalize(nil)
+		if err != nil {
+			return
+		}
+		if progress != nil {
+			progress.AddBar(1)
+		}
+	}
+
+	files.indexes = make(map[string]*indexFile)
+
+	return
+}
+
+func (files *indexFiles) RenameFiles() error {
+	var err error
+
+	for oldName, newName := range files.renameMap {
+		err = files.publishedStorage.RenameFile(oldName, newName)
+		if err != nil {
+			return fmt.Errorf("unable to rename: %s", err)
+		}
+	}
+
+	return nil
+}

deb/list.go

@@ -2,9 +2,10 @@ package deb
 
 import (
 	"fmt"
+	"sort"
+
 	"github.com/smira/aptly/aptly"
 	"github.com/smira/aptly/utils"
-	"sort"
 )
 
 // Dependency options
@@ -36,16 +37,53 @@ type PackageList struct {
 	packagesIndex []*Package
 	// Map of packages for each virtual package (provides)
 	providesIndex map[string][]*Package
+	// Package key generation function
+	keyFunc func(p *Package) string
+	// Allow duplicates?
+	duplicatesAllowed bool
+}
+
+// PackageConflictError means that package can't be added to the list due to error
+type PackageConflictError struct {
+	error
 }
 
 // Verify interface
 var (
 	_ sort.Interface = &PackageList{}
+	_ PackageCatalog = &PackageList{}
 )
 
-// NewPackageList creates empty package list
+func packageShortKey(p *Package) string {
+	return string(p.ShortKey(""))
+}
+
+func packageFullKey(p *Package) string {
+	return string(p.Key(""))
+}
+
+// NewPackageList creates empty package list without duplicate package
 func NewPackageList() *PackageList {
-	return &PackageList{packages: make(map[string]*Package, 1000)}
+	return NewPackageListWithDuplicates(false, 1000)
+}
+
+// NewPackageListWithDuplicates creates empty package list which might allow or block duplicate packages
+func NewPackageListWithDuplicates(duplicates bool, capacity int) *PackageList {
+	if capacity == 0 {
+		capacity = 1000
+	}
+
+	result := &PackageList{
+		packages:          make(map[string]*Package, capacity),
+		duplicatesAllowed: duplicates,
+		keyFunc:           packageShortKey,
+	}
+
+	if duplicates {
+		result.keyFunc = packageFullKey
+	}
+
+	return result
 }
 
 // NewPackageListFromRefList loads packages list from PackageRefList
@@ -55,7 +93,7 @@ func NewPackageListFromRefList(reflist *PackageRefList, collection *PackageColle
 		return NewPackageList(), nil
 	}
 
-	result := &PackageList{packages: make(map[string]*Package, reflist.Len())}
+	result := NewPackageListWithDuplicates(false, reflist.Len())
 
 	if progress != nil {
 		progress.InitBar(int64(reflist.Len()), false)
@@ -85,11 +123,11 @@ func NewPackageListFromRefList(reflist *PackageRefList, collection *PackageColle
 
 // Add appends package to package list, additionally checking for uniqueness
 func (l *PackageList) Add(p *Package) error {
-	key := string(p.ShortKey(""))
+	key := l.keyFunc(p)
 	existing, ok := l.packages[key]
 	if ok {
 		if !existing.Equals(p) {
-			return fmt.Errorf("conflict in package %s", p)
+			return &PackageConflictError{fmt.Errorf("conflict in package %s", p)}
 		}
 		return nil
 	}
@@ -164,7 +202,7 @@ func (l *PackageList) Append(pl *PackageList) error {
 
 // Remove removes package from the list, and updates index when required
 func (l *PackageList) Remove(p *Package) {
-	delete(l.packages, string(p.ShortKey("")))
+	delete(l.packages, l.keyFunc(p))
 	if l.indexed {
 		for _, provides := range p.Provides {
 			for i, pkg := range l.providesIndex[provides] {
@@ -204,6 +242,19 @@ func (l *PackageList) Architectures(includeSource bool) (result []string) {
 	return
 }
 
+// Strings builds list of strings with package keys
+func (l *PackageList) Strings() []string {
+	result := make([]string, l.Len())
+	i := 0
+
+	for _, p := range l.packages {
+		result[i] = string(p.Key(""))
+		i++
+	}
+
+	return result
+}
+
 // depSliceDeduplicate removes dups in slice of Dependencies
 func depSliceDeduplicate(s []Dependency) []Dependency {
 	l := len(s)
@@ -233,8 +284,9 @@ func depSliceDeduplicate(s []Dependency) []Dependency {
 
 // VerifyDependencies looks for missing dependencies in package list.
 //
-// Analysis would be peformed for each architecture, in specified sources
+// Analysis would be performed for each architecture, in specified sources
 func (l *PackageList) VerifyDependencies(options int, architectures []string, sources *PackageList, progress aptly.Progress) ([]Dependency, error) {
+	l.PrepareIndex()
 	missing := make([]Dependency, 0, 128)
 
 	if progress != nil {
@@ -244,7 +296,7 @@ func (l *PackageList) VerifyDependencies(options int, architectures []string, so
 	for _, arch := range architectures {
 		cache := make(map[string]bool, 2048)
 
-		for _, p := range l.packages {
+		for _, p := range l.packagesIndex {
 			if progress != nil {
 				progress.AddBar(1)
 			}
@@ -262,7 +314,6 @@ func (l *PackageList) VerifyDependencies(options int, architectures []string, so
 				variants = depSliceDeduplicate(variants)
 
 				variantsMissing := make([]Dependency, 0, len(variants))
-				missingCount := 0
 
 				for _, dep := range variants {
 					if dep.Architecture == "" {
@@ -270,35 +321,23 @@ func (l *PackageList) VerifyDependencies(options int, architectures []string, so
 					}
 
 					hash := dep.Hash()
-					r, ok := cache[hash]
-					if ok {
-						if !r {
-							missingCount++
-						}
-						continue
+					satisfied, ok := cache[hash]
+					if !ok {
+						satisfied = sources.Search(dep, false) != nil
+						cache[hash] = satisfied
 					}
 
-					if sources.Search(dep, false) == nil {
+					if !satisfied && !ok {
 						variantsMissing = append(variantsMissing, dep)
-						missingCount++
-					} else {
-						cache[hash] = true
+					}
+
+					if satisfied && options&DepFollowAllVariants == 0 {
+						variantsMissing = nil
+						break
 					}
 				}
 
-				if options&DepFollowAllVariants == DepFollowAllVariants {
-					missing = append(missing, variantsMissing...)
-					for _, dep := range variantsMissing {
-						cache[dep.Hash()] = false
-					}
-				} else {
-					if missingCount == len(variants) {
-						missing = append(missing, variantsMissing...)
-						for _, dep := range variantsMissing {
-							cache[dep.Hash()] = false
-						}
-					}
-				}
+				missing = append(missing, variantsMissing...)
 			}
 		}
 	}
@@ -334,6 +373,10 @@ func (l *PackageList) Less(i, j int) bool {
 
 // PrepareIndex prepares list for indexing
 func (l *PackageList) PrepareIndex() {
+	if l.indexed {
+		return
+	}
+
 	l.packagesIndex = make([]*Package, l.Len())
 	l.providesIndex = make(map[string][]*Package, 128)
 
@@ -354,7 +397,7 @@ func (l *PackageList) PrepareIndex() {
 
 // Scan searches package index using full scan
 func (l *PackageList) Scan(q PackageQuery) (result *PackageList) {
-	result = NewPackageList()
+	result = NewPackageListWithDuplicates(l.duplicatesAllowed, 0)
 	for _, pkg := range l.packages {
 		if q.Matches(pkg) {
 			result.Add(pkg)
@@ -364,6 +407,23 @@ func (l *PackageList) Scan(q PackageQuery) (result *PackageList) {
 	return
 }
 
+// SearchSupported returns true for PackageList
+func (l *PackageList) SearchSupported() bool {
+	return true
+}
+
+// SearchByKey looks up package by exact key reference
+func (l *PackageList) SearchByKey(arch, name, version string) (result *PackageList) {
+	result = NewPackageListWithDuplicates(l.duplicatesAllowed, 0)
+
+	pkg := l.packages["P"+arch+" "+name+" "+version]
+	if pkg != nil {
+		result.Add(pkg)
+	}
+
+	return
+}
+
 // Search searches package index for specified package(s) using optimized queries
 func (l *PackageList) Search(dep Dependency, allMatches bool) (searchResults []*Package) {
 	if !l.indexed {
@@ -414,6 +474,7 @@ func (l *PackageList) Filter(queries []PackageQuery, withDependencies bool, sour
 
 	if withDependencies {
 		added := result.Len()
+		result.PrepareIndex()
 
 		dependencySource := NewPackageList()
 		if source != nil {
@@ -434,12 +495,21 @@ func (l *PackageList) Filter(queries []PackageQuery, withDependencies bool, sour
 
 			// try to satisfy dependencies
 			for _, dep := range missing {
+				// dependency might have already been satisfied
+				// with packages already been added
+				if result.Search(dep, false) != nil {
+					continue
+				}
+
 				searchResults := l.Search(dep, false)
 				if searchResults != nil {
 					for _, p := range searchResults {
 						result.Add(p)
 						dependencySource.Add(p)
 						added++
+						if dependencyOptions&DepFollowAllVariants == 0 {
+							break
+						}
 					}
 				}
 			}

deb/list_test.go

@@ -2,10 +2,11 @@ package deb
 
 import (
 	"errors"
-	. "launchpad.net/gocheck"
 	"regexp"
 	"sort"
 	"strings"
+
+	. "gopkg.in/check.v1"
 )
 
 type containsChecker struct {
@@ -79,20 +80,20 @@ func (s *PackageListSuite) SetUpTest(c *C) {
 
 	s.il = NewPackageList()
 	s.packages = []*Package{
-		&Package{Name: "lib", Version: "1.0", Architecture: "i386", Source: "lib (0.9)", deps: &PackageDependencies{PreDepends: []string{"dpkg (>= 1.6)"}, Depends: []string{"mail-agent"}}},
-		&Package{Name: "dpkg", Version: "1.7", Architecture: "i386", Provides: []string{"package-installer"}, deps: &PackageDependencies{}},
-		&Package{Name: "data", Version: "1.1~bp1", Architecture: "all", Source: "app", deps: &PackageDependencies{PreDepends: []string{"dpkg (>= 1.6)"}}},
-		&Package{Name: "app", Version: "1.1~bp1", Architecture: "i386", deps: &PackageDependencies{PreDepends: []string{"dpkg (>= 1.6)"}, Depends: []string{"lib (>> 0.9)", "data (>= 1.0)"}}},
-		&Package{Name: "mailer", Version: "3.5.8", Architecture: "i386", Source: "postfix (1.3)", Provides: []string{"mail-agent"}, deps: &PackageDependencies{}},
-		&Package{Name: "app", Version: "1.1~bp1", Architecture: "amd64", deps: &PackageDependencies{PreDepends: []string{"dpkg (>= 1.6)"}, Depends: []string{"lib (>> 0.9)", "data (>= 1.0)"}}},
-		&Package{Name: "app", Version: "1.1~bp1", Architecture: "arm", deps: &PackageDependencies{PreDepends: []string{"dpkg (>= 1.6)"}, Depends: []string{"lib (>> 0.9) | libx (>= 1.5)", "data (>= 1.0) | mail-agent"}}},
-		&Package{Name: "app", Version: "1.0", Architecture: "s390", deps: &PackageDependencies{PreDepends: []string{"dpkg >= 1.6)"}, Depends: []string{"lib (>> 0.9)", "data (>= 1.0)"}}},
-		&Package{Name: "aa", Version: "2.0-1", Architecture: "i386", deps: &PackageDependencies{PreDepends: []string{"dpkg (>= 1.6)"}}},
-		&Package{Name: "dpkg", Version: "1.6.1-3", Architecture: "amd64", Provides: []string{"package-installer"}, deps: &PackageDependencies{}},
-		&Package{Name: "libx", Version: "1.5", Architecture: "arm", deps: &PackageDependencies{PreDepends: []string{"dpkg (>= 1.6)"}}},
-		&Package{Name: "dpkg", Version: "1.6.1-3", Architecture: "arm", Provides: []string{"package-installer"}, deps: &PackageDependencies{}},
-		&Package{Name: "dpkg", Version: "1.6.1-3", Architecture: "source", SourceArchitecture: "any", IsSource: true, deps: &PackageDependencies{}},
-		&Package{Name: "dpkg", Version: "1.7", Architecture: "source", SourceArchitecture: "any", IsSource: true, deps: &PackageDependencies{}},
+		{Name: "lib", Version: "1.0", Architecture: "i386", Source: "lib (0.9)", deps: &PackageDependencies{PreDepends: []string{"dpkg (>= 1.6)"}, Depends: []string{"mail-agent"}}},
+		{Name: "dpkg", Version: "1.7", Architecture: "i386", Provides: []string{"package-installer"}, deps: &PackageDependencies{}},
+		{Name: "data", Version: "1.1~bp1", Architecture: "all", Source: "app", deps: &PackageDependencies{PreDepends: []string{"dpkg (>= 1.6)"}}},
+		{Name: "app", Version: "1.1~bp1", Architecture: "i386", deps: &PackageDependencies{PreDepends: []string{"dpkg (>= 1.6)"}, Depends: []string{"lib (>> 0.9)", "data (>= 1.0)"}}},
+		{Name: "mailer", Version: "3.5.8", Architecture: "i386", Source: "postfix (1.3)", Provides: []string{"mail-agent"}, deps: &PackageDependencies{}},
+		{Name: "app", Version: "1.1~bp1", Architecture: "amd64", deps: &PackageDependencies{PreDepends: []string{"dpkg (>= 1.6)"}, Depends: []string{"lib (>> 0.9)", "data (>= 1.0)"}}},
+		{Name: "app", Version: "1.1~bp1", Architecture: "arm", deps: &PackageDependencies{PreDepends: []string{"dpkg (>= 1.6)"}, Depends: []string{"lib (>> 0.9) | libx (>= 1.5)", "data (>= 1.0) | mail-agent"}}},
+		{Name: "app", Version: "1.0", Architecture: "s390", deps: &PackageDependencies{PreDepends: []string{"dpkg >= 1.6)"}, Depends: []string{"lib (>> 0.9)", "data (>= 1.0)"}}},
+		{Name: "aa", Version: "2.0-1", Architecture: "i386", deps: &PackageDependencies{PreDepends: []string{"dpkg (>= 1.6)"}}},
+		{Name: "dpkg", Version: "1.6.1-3", Architecture: "amd64", Provides: []string{"package-installer"}, deps: &PackageDependencies{}},
+		{Name: "libx", Version: "1.5", Architecture: "arm", deps: &PackageDependencies{PreDepends: []string{"dpkg (>= 1.6)"}}},
+		{Name: "dpkg", Version: "1.6.1-3", Architecture: "arm", Provides: []string{"package-installer"}, deps: &PackageDependencies{}},
+		{Name: "dpkg", Version: "1.6.1-3", Architecture: "source", SourceArchitecture: "any", IsSource: true, deps: &PackageDependencies{}},
+		{Name: "dpkg", Version: "1.7", Architecture: "source", SourceArchitecture: "any", IsSource: true, deps: &PackageDependencies{}},
 	}
 	for _, p := range s.packages {
 		s.il.Add(p)
@@ -101,12 +102,12 @@ func (s *PackageListSuite) SetUpTest(c *C) {
 
 	s.il2 = NewPackageList()
 	s.packages2 = []*Package{
-		&Package{Name: "mailer", Version: "3.5.8", Architecture: "amd64", Source: "postfix (1.3)", Provides: []string{"mail-agent"}, deps: &PackageDependencies{}},
-		&Package{Name: "sendmail", Version: "1.0", Architecture: "amd64", Source: "postfix (1.3)", Provides: []string{"mail-agent"}, deps: &PackageDependencies{}},
-		&Package{Name: "app", Version: "1.1-bp1", Architecture: "amd64", deps: &PackageDependencies{PreDepends: []string{"dpkg (>= 1.6)"}, Depends: []string{"lib (>> 0.9)", "data (>= 1.0)"}}},
-		&Package{Name: "app", Version: "1.1-bp2", Architecture: "amd64", deps: &PackageDependencies{PreDepends: []string{"dpkg (>= 1.6)"}, Depends: []string{"lib (>> 0.9)", "data (>= 1.0)"}}},
-		&Package{Name: "app", Version: "1.2", Architecture: "amd64", deps: &PackageDependencies{PreDepends: []string{"dpkg (>= 1.6)"}, Depends: []string{"lib (>> 0.9) | libx (>= 1.5)", "data (>= 1.0) | mail-agent"}}},
-		&Package{Name: "app", Version: "3.0", Architecture: "amd64", deps: &PackageDependencies{PreDepends: []string{"dpkg >= 1.6)"}, Depends: []string{"lib (>> 0.9)", "data (>= 1.0)"}}},
+		{Name: "mailer", Version: "3.5.8", Architecture: "amd64", Source: "postfix (1.3)", Provides: []string{"mail-agent"}, deps: &PackageDependencies{}},
+		{Name: "sendmail", Version: "1.0", Architecture: "amd64", Source: "postfix (1.3)", Provides: []string{"mail-agent"}, deps: &PackageDependencies{}},
+		{Name: "app", Version: "1.1-bp1", Architecture: "amd64", deps: &PackageDependencies{PreDepends: []string{"dpkg (>= 1.6)"}, Depends: []string{"lib (>> 0.9)", "data (>= 1.0)"}}},
+		{Name: "app", Version: "1.1-bp2", Architecture: "amd64", deps: &PackageDependencies{PreDepends: []string{"dpkg (>= 1.6)"}, Depends: []string{"lib (>> 0.9)", "data (>= 1.0)"}}},
+		{Name: "app", Version: "1.2", Architecture: "amd64", deps: &PackageDependencies{PreDepends: []string{"dpkg (>= 1.6)"}, Depends: []string{"lib (>> 0.9) | libx (>= 1.5)", "data (>= 1.0) | mail-agent"}}},
+		{Name: "app", Version: "3.0", Architecture: "amd64", deps: &PackageDependencies{PreDepends: []string{"dpkg >= 1.6)"}, Depends: []string{"lib (>> 0.9)", "data (>= 1.0)"}}},
 	}
 	for _, p := range s.packages2 {
 		s.il2.Add(p)
@@ -114,10 +115,10 @@ func (s *PackageListSuite) SetUpTest(c *C) {
 	s.il2.PrepareIndex()
 
 	s.sourcePackages = []*Package{
-		&Package{Name: "postfix", Version: "1.3", Architecture: "source", SourceArchitecture: "any", IsSource: true, deps: &PackageDependencies{}},
-		&Package{Name: "app", Version: "1.1~bp1", Architecture: "source", SourceArchitecture: "any", IsSource: true, deps: &PackageDependencies{}},
-		&Package{Name: "aa", Version: "2.0-1", Architecture: "source", SourceArchitecture: "any", IsSource: true, deps: &PackageDependencies{}},
-		&Package{Name: "lib", Version: "0.9", Architecture: "source", SourceArchitecture: "any", IsSource: true, deps: &PackageDependencies{}},
+		{Name: "postfix", Version: "1.3", Architecture: "source", SourceArchitecture: "any", IsSource: true, deps: &PackageDependencies{}},
+		{Name: "app", Version: "1.1~bp1", Architecture: "source", SourceArchitecture: "any", IsSource: true, deps: &PackageDependencies{}},
+		{Name: "aa", Version: "2.0-1", Architecture: "source", SourceArchitecture: "any", IsSource: true, deps: &PackageDependencies{}},
+		{Name: "lib", Version: "0.9", Architecture: "source", SourceArchitecture: "any", IsSource: true, deps: &PackageDependencies{}},
 	}
 
 }
@@ -378,6 +379,20 @@ func (s *PackageListSuite) TestFilter(c *C) {
 		&FieldQuery{Field: "$Architecture", Relation: VersionRegexp, Value: "i.*6", Regexp: regexp.MustCompile("i.*6")}, &PkgQuery{"app", "1.1~bp1", "i386"}}}, false, nil, 0, nil)
 	c.Check(err, IsNil)
 	c.Check(plString(result), Equals, "app_1.1~bp1_i386")
+
+	result, err = s.il.Filter([]PackageQuery{&AndQuery{
+		&FieldQuery{Field: "Name", Relation: VersionRegexp, Value: "a", Regexp: regexp.MustCompile("a")},
+		&NotQuery{Q: &FieldQuery{Field: "Name", Relation: VersionEqual, Value: "data"}},
+	}}, false, nil, 0, nil)
+	c.Check(err, IsNil)
+	c.Check(plString(result), Equals, "aa_2.0-1_i386 app_1.0_s390 app_1.1~bp1_amd64 app_1.1~bp1_arm app_1.1~bp1_i386 mailer_3.5.8_i386")
+
+	result, err = s.il.Filter([]PackageQuery{&AndQuery{
+		&NotQuery{Q: &FieldQuery{Field: "Name", Relation: VersionEqual, Value: "data"}},
+		&FieldQuery{Field: "Name", Relation: VersionRegexp, Value: "a", Regexp: regexp.MustCompile("a")},
+	}}, false, nil, 0, nil)
+	c.Check(err, IsNil)
+	c.Check(plString(result), Equals, "aa_2.0-1_i386 app_1.0_s390 app_1.1~bp1_amd64 app_1.1~bp1_arm app_1.1~bp1_i386 mailer_3.5.8_i386")
 }
 
 func (s *PackageListSuite) TestVerifyDependencies(c *C) {
@@ -387,7 +402,7 @@ func (s *PackageListSuite) TestVerifyDependencies(c *C) {
 
 	missing, err = s.il.VerifyDependencies(0, []string{"i386", "amd64"}, s.il, nil)
 	c.Check(err, IsNil)
-	c.Check(missing, DeepEquals, []Dependency{Dependency{Pkg: "lib", Relation: VersionGreater, Version: "0.9", Architecture: "amd64"}})
+	c.Check(missing, DeepEquals, []Dependency{{Pkg: "lib", Relation: VersionGreater, Version: "0.9", Architecture: "amd64"}})
 
 	missing, err = s.il.VerifyDependencies(0, []string{"arm"}, s.il, nil)
 	c.Check(err, IsNil)
@@ -395,8 +410,8 @@ func (s *PackageListSuite) TestVerifyDependencies(c *C) {
 
 	missing, err = s.il.VerifyDependencies(DepFollowAllVariants, []string{"arm"}, s.il, nil)
 	c.Check(err, IsNil)
-	c.Check(missing, DeepEquals, []Dependency{Dependency{Pkg: "lib", Relation: VersionGreater, Version: "0.9", Architecture: "arm"},
-		Dependency{Pkg: "mail-agent", Relation: VersionDontCare, Version: "", Architecture: "arm"}})
+	c.Check(missing, DeepEquals, []Dependency{{Pkg: "lib", Relation: VersionGreater, Version: "0.9", Architecture: "arm"},
+		{Pkg: "mail-agent", Relation: VersionDontCare, Version: "", Architecture: "arm"}})
 
 	for _, p := range s.sourcePackages {
 		s.il.Add(p)
@@ -404,11 +419,11 @@ func (s *PackageListSuite) TestVerifyDependencies(c *C) {
 
 	missing, err = s.il.VerifyDependencies(DepFollowSource, []string{"i386", "amd64"}, s.il, nil)
 	c.Check(err, IsNil)
-	c.Check(missing, DeepEquals, []Dependency{Dependency{Pkg: "lib", Relation: VersionGreater, Version: "0.9", Architecture: "amd64"}})
+	c.Check(missing, DeepEquals, []Dependency{{Pkg: "lib", Relation: VersionGreater, Version: "0.9", Architecture: "amd64"}})
 
 	missing, err = s.il.VerifyDependencies(DepFollowSource, []string{"arm"}, s.il, nil)
 	c.Check(err, IsNil)
-	c.Check(missing, DeepEquals, []Dependency{Dependency{Pkg: "libx", Relation: VersionEqual, Version: "1.5", Architecture: "source"}})
+	c.Check(missing, DeepEquals, []Dependency{{Pkg: "libx", Relation: VersionEqual, Version: "1.5", Architecture: "source"}})
 
 	_, err = s.il.VerifyDependencies(0, []string{"i386", "amd64", "s390"}, s.il, nil)
 	c.Check(err, ErrorMatches, "unable to process package app_1.0_s390:.*")