Version bump to 0.9.

Revert "Make snapshot creation API more RESTful: accept snapshot name from URL. #116"

This reverts commit 06dc1ef9a4.

.travis.yml

@@ -1,15 +1,20 @@
 language: go
 
 go:
-  - 1.1
-  - 1.2.1
-  - 1.3
+  - 1.3.3
   - tip
 
 env:
   global:
     - secure: "YSwtFrMqh4oUvdSQTXBXMHHLWeQgyNEL23ChIZwU0nuDGIcQZ65kipu0PzefedtUbK4ieC065YCUi4UDDh6gPotB/Wu1pnYg3dyQ7rFvhaVYAAUEpajAdXZhlx+7+J8a4FZMeC/kqiahxoRgLbthF9019ouIqhGB9zHKI6/yZwc="
-
+    - secure: "V7OjWrfQ8UbktgT036jYQPb/7GJT3Ol9LObDr8FYlzsQ+F1uj2wLac6ePuxcOS4FwWOJinWGM1h+JiFkbxbyFqfRNJ0jj0O2p93QyDojxFVOn1mXqqvV66KFqAWR2Vzkny/gDvj8LTvdB1cgAIm2FNOkQc6E1BFnyWS2sN9ea5E="
+    - secure: "OxiVNmre2JzUszwPNNilKDgIqtfX2gnRSsVz6nuySB1uO2yQsOQmKWJ9cVYgH2IB5H8eWXKOhexcSE28kz6TPLRuEcU9fnqKY3uEkdwm7rJfz9lf+7C4bJEUdA1OIzJppjnWUiXxD7CEPL1DlnMZM24eDQYqa/4WKACAgkK53gE="
+before_install:
+  - sudo apt-get update -qq
+  - sudo apt-get install -y python-virtualenv graphviz
+  - virtualenv env
+  - . env/bin/activate
+  - pip install boto requests python-swiftclient
 install:
   - make prepare
 
@@ -19,3 +24,12 @@ 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 +3,15 @@ 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)

Gomfile

@@ -1,24 +1,33 @@
 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/AlekSi/pointer', :commit => '5f6d527dae3d678b46fbb20331ddf44e2b841943'
+gom 'github.com/cheggaaa/pb', :commit => '2c1b74620cc58a81ac152ee2d322e28c806d81ed'
+gom 'github.com/gin-gonic/gin', :commit => 'b1758d3bfa09e61ddbc1c9a627e936eec6a170de'
+gom 'github.com/jlaffaye/ftp', :commit => 'fec71e62e457557fbe85cefc847a048d57815d76'
+gom 'github.com/julienschmidt/httprouter', :commit => '46807412fe50aaceb73bb57061c2230fd26a1640'
+gom 'github.com/mattn/go-shellwords', :commit => 'c7ca6f94add751566a61cf2199e1de78d4c3eee4'
+gom 'github.com/mitchellh/goamz/s3', :commit => 'e7664b32019f31fd1bdf33f9e85f28722f700405'
 gom 'github.com/mkrautz/goar', :commit => '36eb5f3452b1283a211fa35bc00c646fd0db5c4b'
+gom 'github.com/ncw/swift', :commit => '384ef27c70645e285f8bb9d02276bf654d06027e'
 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/smira/flag', :commit => '357ed3e599ffcbd4aeaa828e1d10da2df3ea5107'
+gom 'github.com/smira/go-ftp-protocol/protocol', :commit => '066b75c2b70dca7ae10b1b88b47534a3c31ccfaa'
+gom 'github.com/syndtr/gosnappy/snappy', :commit => 'ce8acff4829e0c2458a67ead32390ac0a381c862'
+gom 'github.com/syndtr/goleveldb/leveldb', :commit => '97e257099d2ab9578151ba85e2641e2cd14d3ca8'
 gom 'github.com/ugorji/go/codec', :commit => '71c2886f5a673a35f909803f38ece5810165097b'
+gom 'github.com/vaughan0/go-ini', :commit => 'a98ad7ee00ec53921f08832bc06ecf7fd600e6a1'
 gom 'github.com/wsxiaoys/terminal/color', :commit => '5668e431776a7957528361f90ce828266c69ed08'
+gom 'golang.org/x/crypto/ssh/terminal', :commit => 'a7ead6ddf06233883deca151dffaef2effbf498f'
 
 group :test do
-    gom 'launchpad.net/gocheck'
+    gom 'gopkg.in/check.v1'
 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'
+   gom 'golang.org/x/tools/cmd/cover'
 end

Makefile

@@ -1,6 +1,6 @@
 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
+PACKAGES=context database deb files http query swift s3 utils
+ALL_PACKAGES=api aptly context cmd console database deb files http query swift s3 utils
 BINPATH=$(abspath ./_vendor/bin)
 GOM_ENVIRONMENT=-test
 PYTHON?=python
@@ -36,16 +36,14 @@ coverage: coverage.out
 	rm -f coverage.out
 
 check:
-	$(GOM) exec go tool vet -all=true -shadow=true $(ALL_PACKAGES:%=./%)
+	$(GOM) exec go tool vet -all=true $(ALL_PACKAGES:%=./%)
 	$(GOM) exec golint $(ALL_PACKAGES:%=./%)
 
 install:
 	$(GOM) build -o $(BINPATH)/aptly
 
 system-test: install
-ifeq ($(GOVERSION),$(filter $(GOVERSION),go1.2 go1.2.1 go1.3 devel))
 	if [ ! -e ~/aptly-fixture-db ]; then git clone https://github.com/aptly-dev/aptly-fixture-db.git ~/aptly-fixture-db/; fi
-endif
 	if [ ! -e ~/aptly-fixture-pool ]; then git clone https://github.com/aptly-dev/aptly-fixture-pool.git ~/aptly-fixture-pool/; fi
 	PATH=$(BINPATH)/:$(PATH) $(PYTHON) system/run.py --long
 
@@ -79,7 +77,10 @@ src-package:
 	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-$(VERSION)
+	curl -T aptly-$(VERSION)-src.tar.bz2 -usmira:$(BINTRAY_KEY) https://api.bintray.com/content/smira/aptly/aptly/$(VERSION)/$(VERSION)/aptly-$(VERSION)-src.tar.bz2
 
 .PHONY: coverage.out

README.rst

@@ -8,8 +8,17 @@ aptly
 .. image:: https://coveralls.io/repos/smira/aptly/badge.png?branch=HEAD
     :target: https://coveralls.io/r/smira/aptly?branch=HEAD
 
+.. 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/gojp/goreportcard
+    :target: http://goreportcard.com/report/gojp/goreportcard
+
 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>`_.
 
@@ -20,14 +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
 --------
@@ -38,8 +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 E083A3782A194991
 
 After that you can install aptly as any other software package::
 
@@ -49,9 +58,13 @@ 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 1.1+ required)::
+If you have Go environment set up, you can build aptly from source by running (go 1.3+ required)::
 
     go get -u github.com/mattn/gom
     mkdir -p $GOPATH/src/github.com/smira/aptly

api/api.go

@@ -0,0 +1,113 @@
+// Package api provides implementation of aptly REST API
+package api
+
+import (
+	"fmt"
+	"github.com/gin-gonic/gin"
+	"github.com/smira/aptly/aptly"
+	"github.com/smira/aptly/deb"
+	"github.com/smira/aptly/query"
+	"sort"
+	"time"
+)
+
+// 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})
+}
+
+// Periodically flushes CollectionFactory to free up memory used by collections,
+// flushing caches.
+//
+// Should be run in goroutine!
+func cacheFlusher() {
+	ticker := time.Tick(15 * time.Minute)
+
+	for {
+		<-ticker
+
+		// 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()
+	}
+}
+
+// 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))
+		}
+	}
+
+	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 +1,185 @@
+package api
+
+import (
+	"fmt"
+	"github.com/gin-gonic/gin"
+	"io"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+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 +1,75 @@
+package api
+
+import (
+	"bytes"
+	"fmt"
+	"github.com/gin-gonic/gin"
+	"github.com/smira/aptly/deb"
+	"io"
+	"mime"
+	"os"
+	"os/exec"
+)
+
+// GET /api/graph.:ext
+func apiGraph(c *gin.Context) {
+	var (
+		err    error
+		output []byte
+	)
+
+	ext := c.Params.ByName("ext")
+
+	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)
+	if err != nil {
+		c.JSON(500, err)
+		return
+	}
+
+	buf := bytes.NewBufferString(graph.String())
+
+	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 +1,336 @@
+package api
+
+import (
+	"fmt"
+	"github.com/gin-gonic/gin"
+	"github.com/smira/aptly/deb"
+	"github.com/smira/aptly/utils"
+	"strings"
+)
+
+// 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
+		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
+
+	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))
+	}
+
+	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
+		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"))
+	}
+
+	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))
+	}
+
+	err = collection.Update(published)
+	if err != nil {
+		c.Fail(500, fmt.Errorf("unable to save to DB: %s", err))
+	}
+
+	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))
+	}
+
+	c.JSON(200, published)
+}
+
+// DELETE /publish/:prefix/:distribution
+func apiPublishDrop(c *gin.Context) {
+	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())
+	if err != nil {
+		c.Fail(500, fmt.Errorf("unable to drop: %s", err))
+		return
+	}
+
+	c.JSON(200, gin.H{})
+}

api/repos.go

@@ -0,0 +1,370 @@
+package api
+
+import (
+	"fmt"
+	"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"
+	"os"
+	"path/filepath"
+)
+
+// 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 != "" {
+		repo.Comment = b.Comment
+	}
+	if b.DefaultDistribution != "" {
+		repo.DefaultDistribution = b.DefaultDistribution
+	}
+	if b.DefaultComponent != "" {
+		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, err = deb.CollectPackageFiles(sources, reporter)
+
+	if err != nil {
+		c.Fail(500, fmt.Errorf("unable to collect package files: %s", err))
+		return
+	}
+
+	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)
+	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 +1,82 @@
+package api
+
+import (
+	"github.com/gin-gonic/gin"
+	ctx "github.com/smira/aptly/context"
+	"net/http"
+)
+
+var context *ctx.AptlyContext
+
+// Router returns prebuilt with routes http.Handler
+func Router(c *ctx.AptlyContext) http.Handler {
+	context = c
+
+	go cacheFlusher()
+
+	router := gin.Default()
+	router.Use(gin.ErrorLogger())
+
+	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 +1,410 @@
+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

@@ -34,7 +34,7 @@ type PublishedStorage interface {
 	// Remove removes single file under public path
 	Remove(path string) error
 	// LinkFromPool links package file from pool to dist's pool location
-	LinkFromPool(publishedDirectory string, sourcePool PackagePool, sourcePath, sourceMD5 string) error
+	LinkFromPool(publishedDirectory string, sourcePool PackagePool, sourcePath, sourceMD5 string, force bool) error
 	// Filelist returns list of files under prefix
 	Filelist(prefix string) ([]string, error)
 	// RenameFile renames (moves) file
@@ -90,6 +90,8 @@ 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"
+const Version = "0.9"
 
 // Enable 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 +1,52 @@
+package cmd
+
+import (
+	"fmt"
+	"github.com/smira/aptly/api"
+	"github.com/smira/commander"
+	"github.com/smira/flag"
+	"net/http"
+)
+
+func aptlyAPIServe(cmd *commander.Command, args []string) error {
+	var (
+		err error
+	)
+
+	if len(args) != 0 {
+		cmd.Usage()
+		return commander.ErrCommandError
+	}
+
+	listen := context.Flags().Lookup("listen").Value.String()
+
+	fmt.Printf("\nStarting web server at: %s (press Ctrl+C to quit)...\n", listen)
+
+	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: `
+Stat HTTP server with aptly REST API.
+
+Example:
+
+  $ aptly api serve -listen=:8080
+`,
+		Flag: *flag.NewFlagSet("aptly-serve", flag.ExitOnError),
+	}
+
+	cmd.Flag.String("listen", ":8080", "host:port for HTTP listening")
+
+	return cmd
+
+}

cmd/cmd.go

@@ -34,6 +34,18 @@ func ListPackagesRefList(reflist *deb.PackageRefList) (err error) {
 	return
 }
 
+// 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{
@@ -46,21 +58,25 @@ 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/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 +1,38 @@
+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

@@ -20,7 +20,7 @@ func aptlyDbCleanup(cmd *commander.Command, args []string) error {
 	// collect information about references packages...
 	existingPackageRefs := deb.NewPackageRefList()
 
-	context.Progress().Printf("Loading mirrors, local repos and snapshots...\n")
+	context.Progress().Printf("Loading mirrors, local repos, snapshots and published repos...\n")
 	err = context.CollectionFactory().RemoteRepoCollection().ForEach(func(repo *deb.RemoteRepo) error {
 		err := context.CollectionFactory().RemoteRepoCollection().LoadComplete(repo)
 		if err != nil {
@@ -61,6 +61,24 @@ func aptlyDbCleanup(cmd *commander.Command, args []string) error {
 		return err
 	}
 
+	err = context.CollectionFactory().PublishedRepoCollection().ForEach(func(published *deb.PublishedRepo) error {
+		if published.SourceKind != "local" {
+			return nil
+		}
+		err := context.CollectionFactory().PublishedRepoCollection().LoadComplete(published, context.CollectionFactory())
+		if err != nil {
+			return err
+		}
+
+		for _, component := range published.Components() {
+			existingPackageRefs = existingPackageRefs.Merge(published.RefList(component), false)
+		}
+		return nil
+	})
+	if err != nil {
+		return err
+	}
+
 	// ... and compare it to the list of all packages
 	context.Progress().Printf("Loading list of all packages...\n")
 	allPackageRefs := context.CollectionFactory().PackageCollection().AllPackageRefs()

cmd/graph.go

@@ -2,7 +2,6 @@ package cmd
 
 import (
 	"bytes"
-	"code.google.com/p/gographviz"
 	"fmt"
 	"github.com/smira/aptly/deb"
 	"github.com/smira/commander"
@@ -10,7 +9,6 @@ import (
 	"io/ioutil"
 	"os"
 	"os/exec"
-	"strings"
 )
 
 func aptlyGraph(cmd *commander.Command, args []string) error {
@@ -21,121 +19,11 @@ 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
-	})
-
 	fmt.Printf("Generating graph...\n")
+	graph, err := deb.BuildGraph(context.CollectionFactory())
+	if err != nil {
+		return err
+	}
 
 	buf := bytes.NewBufferString(graph.String())
 

cmd/mirror.go

@@ -8,7 +8,7 @@ import (
 )
 
 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 +56,7 @@ func makeCmdMirror() *commander.Command {
 			makeCmdMirrorUpdate(),
 			makeCmdMirrorRename(),
 			makeCmdMirrorEdit(),
+			makeCmdMirrorSearch(),
 		},
 	}
 }

cmd/mirror_create.go

@@ -16,7 +16,8 @@ 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 +34,15 @@ 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)
 
 	if repo.Filter != "" {
 		_, err = query.Parse(repo.Filter)
@@ -48,7 +51,7 @@ 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 +77,7 @@ 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 +93,10 @@ 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.Var(&keyRingsFlag{}, "keyring", "gpg keyring to use when verifying Release file (could be specified multiple times)")
 
 	return cmd

cmd/mirror_drop.go

@@ -20,7 +20,12 @@ 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

@@ -19,15 +19,28 @@ 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 +48,15 @@ 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 +70,10 @@ 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 +84,8 @@ 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

@@ -28,6 +28,8 @@ func aptlyMirrorList(cmd *commander.Command, args []string) error {
 		return nil
 	})
 
+	context.CloseDatabase()
+
 	sort.Strings(repos)
 
 	if raw {

cmd/mirror_rename.go

@@ -24,6 +24,11 @@ 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 +1,26 @@
+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
+
+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")
+
+	return cmd
+}

cmd/mirror_show.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+	"github.com/smira/aptly/deb"
 	"github.com/smira/aptly/utils"
 	"github.com/smira/commander"
 	"github.com/smira/flag"
@@ -28,6 +29,9 @@ 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 +41,11 @@ 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 +66,7 @@ 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

@@ -4,8 +4,12 @@ import (
 	"fmt"
 	"github.com/smira/aptly/deb"
 	"github.com/smira/aptly/query"
+	"github.com/smira/aptly/utils"
 	"github.com/smira/commander"
 	"github.com/smira/flag"
+	"os"
+	"os/signal"
+	"strings"
 )
 
 func aptlyMirrorUpdate(cmd *commander.Command, args []string) error {
@@ -27,9 +31,17 @@ 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)
+
+	verifier, err := getVerifier(context.Flags())
 	if err != nil {
 		return fmt.Errorf("unable to initialize GPG verifier: %s", err)
 	}
@@ -39,21 +51,112 @@ 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)
 	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)
+		}
+
+		// We don't need queue after this point
+		queue = nil
+	}()
+
+	// Wait for all downloads to finish
+	errors := make([]string, 0)
+
+	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\n", 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)
@@ -80,6 +183,7 @@ 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/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 +1,52 @@
+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
+	if len(args) != 1 {
+		cmd.Usage()
+		return commander.ErrCommandError
+	}
+
+	q, err := query.Parse(args[0])
+	if err != nil {
+		return fmt.Errorf("unable to search: %s", err)
+	}
+
+	result := q.Query(context.CollectionFactory().PackageCollection())
+	if result.Len() == 0 {
+		return fmt.Errorf("no results")
+	}
+
+	result.ForEach(func(p *deb.Package) error {
+		context.Progress().Printf("%s\n", p)
+		return nil
+	})
+
+	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
+
+Example:
+
+    $ aptly package search '$Architecture (i386), Name (% *-dev)'
+`,
+		Flag: *flag.NewFlagSet("aptly-package-search", flag.ExitOnError),
+	}
+
+	return cmd
+}

cmd/package_show.go

@@ -0,0 +1,137 @@
+package cmd
+
+import (
+	"bufio"
+	"fmt"
+	"github.com/smira/aptly/deb"
+	"github.com/smira/aptly/query"
+	"github.com/smira/commander"
+	"github.com/smira/flag"
+	"os"
+)
+
+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",

cmd/publish_drop.go

@@ -2,6 +2,7 @@ package cmd
 
 import (
 	"fmt"
+	"github.com/smira/aptly/deb"
 	"github.com/smira/commander"
 )
 
@@ -19,7 +20,7 @@ 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())

cmd/publish_list.go

@@ -25,7 +25,7 @@ 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 +36,8 @@ 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

@@ -37,9 +37,13 @@ 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.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")
 
 	return cmd
 }

cmd/publish_snapshot.go

@@ -13,7 +13,7 @@ import (
 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 +27,7 @@ func aptlyPublishSnapshotOrRepo(cmd *commander.Command, args []string) error {
 	} else {
 		param = ""
 	}
-	storage, prefix := parsePrefix(param)
+	storage, prefix := deb.ParsePrefix(param)
 
 	var (
 		sources = []interface{}{}
@@ -110,7 +110,7 @@ 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 {
@@ -125,12 +125,18 @@ 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)
 	}
 
-	err = published.Publish(context.PackagePool(), context, context.CollectionFactory(), signer, context.Progress())
+	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")
+	}
+
+	err = published.Publish(context.PackagePool(), context, context.CollectionFactory(), signer, context.Progress(), forceOverwrite)
 	if err != nil {
 		return fmt.Errorf("unable to publish: %s", err)
 	}
@@ -193,9 +199,13 @@ 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.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")
 
 	return cmd
 }

cmd/publish_switch.go

@@ -3,6 +3,7 @@ package cmd
 import (
 	"fmt"
 	"github.com/smira/aptly/deb"
+	"github.com/smira/aptly/utils"
 	"github.com/smira/commander"
 	"github.com/smira/flag"
 	"strings"
@@ -11,7 +12,7 @@ import (
 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 +34,7 @@ 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 +62,10 @@ 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)
@@ -74,12 +79,18 @@ 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)
 	}
 
-	err = published.Publish(context.PackagePool(), context, context.CollectionFactory(), signer, context.Progress())
+	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")
+	}
+
+	err = published.Publish(context.PackagePool(), context, context.CollectionFactory(), signer, context.Progress(), forceOverwrite)
 	if err != nil {
 		return fmt.Errorf("unable to publish: %s", err)
 	}
@@ -106,7 +117,7 @@ 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).
 
@@ -114,19 +125,26 @@ 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.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")
 
 	return cmd
 }

cmd/publish_update.go

@@ -20,7 +20,7 @@ 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
 
@@ -43,12 +43,18 @@ 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)
 	}
 
-	err = published.Publish(context.PackagePool(), context, context.CollectionFactory(), signer, context.Progress())
+	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")
+	}
+
+	err = published.Publish(context.PackagePool(), context, context.CollectionFactory(), signer, context.Progress(), forceOverwrite)
 	if err != nil {
 		return fmt.Errorf("unable to publish: %s", err)
 	}
@@ -92,7 +98,11 @@ 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("force-overwrite", false, "overwrite files in package pool in case of mismatch")
 
 	return cmd
 }

cmd/repo.go

@@ -20,6 +20,7 @@ func makeCmdRepo() *commander.Command {
 			makeCmdRepoRemove(),
 			makeCmdRepoShow(),
 			makeCmdRepoRename(),
+			makeCmdRepoSearch(),
 		},
 	}
 }

cmd/repo_add.go

@@ -2,14 +2,12 @@ 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"
 	"os"
-	"path/filepath"
-	"sort"
-	"strings"
 )
 
 func aptlyRepoAdd(cmd *commander.Command, args []string) error {
@@ -40,130 +38,22 @@ 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)
-				}
-
-				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
-			}
-		}
+	packageFiles, failedFiles, err = deb.CollectPackageFiles(args[1:], &aptly.ConsoleResultReporter{Progress: context.Progress()})
+	if err != nil {
+		return fmt.Errorf("unable to collect package files: %s", err)
 	}
 
-	processedFiles := []string{}
-	sort.Strings(packageFiles)
+	var processedFiles, failedFiles2 []string
 
-	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()})
+	failedFiles = append(failedFiles, failedFiles2...)
+	if err != nil {
+		return fmt.Errorf("unable to import package files: %s", err)
 	}
 
 	repo.UpdateRefList(deb.NewPackageRefListFromPackageList(list))
@@ -173,7 +63,7 @@ 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 +92,8 @@ 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 +106,7 @@ 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

@@ -14,9 +14,9 @@ func aptlyRepoCreate(cmd *commander.Command, args []string) error {
 		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()
 
 	err = context.CollectionFactory().LocalRepoCollection().Add(repo)
 	if err != nil {

cmd/repo_drop.go

@@ -34,7 +34,7 @@ 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

@@ -23,16 +23,16 @@ 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()
+	if context.Flags().Lookup("comment").Value.String() != "" {
+		repo.Comment = context.Flags().Lookup("comment").Value.String()
 	}
 
-	if context.flags.Lookup("distribution").Value.String() != "" {
-		repo.DefaultDistribution = context.flags.Lookup("distribution").Value.String()
+	if context.Flags().Lookup("distribution").Value.String() != "" {
+		repo.DefaultDistribution = context.Flags().Lookup("distribution").Value.String()
 	}
 
-	if context.flags.Lookup("component").Value.String() != "" {
-		repo.DefaultComponent = context.flags.Lookup("component").Value.String()
+	if context.Flags().Lookup("component").Value.String() != "" {
+		repo.DefaultComponent = context.Flags().Lookup("component").Value.String()
 	}
 
 	err = context.CollectionFactory().LocalRepoCollection().Update(repo)
@@ -50,7 +50,7 @@ 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:

cmd/repo_list.go

@@ -33,6 +33,8 @@ func aptlyRepoList(cmd *commander.Command, args []string) error {
 		return nil
 	})
 
+	context.CloseDatabase()
+
 	sort.Strings(repos)
 
 	if raw {

cmd/repo_move.go

@@ -87,7 +87,7 @@ 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 +145,7 @@ 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

@@ -54,7 +54,7 @@ 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_search.go

@@ -0,0 +1,26 @@
+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
+
+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")
+
+	return cmd
+}

cmd/repo_show.go

@@ -31,7 +31,7 @@ func aptlyRepoShow(cmd *commander.Command, args []string) error {
 	fmt.Printf("Default Component: %s\n", repo.DefaultComponent)
 	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 +1,45 @@
+package cmd
+
+import (
+	"fmt"
+	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.Println("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

@@ -27,7 +27,7 @@ func aptlyServe(cmd *commander.Command, args []string) error {
 		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

@@ -23,6 +23,11 @@ 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

@@ -13,7 +13,7 @@ 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

@@ -35,7 +35,7 @@ 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 +1,107 @@
+package cmd
+
+import (
+	"fmt"
+	"github.com/smira/aptly/deb"
+	"github.com/smira/aptly/query"
+	"github.com/smira/commander"
+	"github.com/smira/flag"
+	"sort"
+	"strings"
+)
+
+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

@@ -4,49 +4,8 @@ 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 +16,24 @@ 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 +41,8 @@ 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

@@ -28,12 +28,12 @@ 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
 
@@ -43,7 +43,7 @@ func aptlySnapshotMerge(cmd *commander.Command, args []string) error {
 	}
 
 	if latest {
-		deb.FilterLatestRefs(result)
+		result.FilterLatestRefs()
 	}
 
 	sourceDescription := make([]string, len(sources))
@@ -84,7 +84,7 @@ 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

@@ -17,9 +17,9 @@ 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 +91,7 @@ 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 +129,7 @@ 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_search.go

@@ -0,0 +1,125 @@
+package cmd
+
+import (
+	"fmt"
+	"github.com/smira/aptly/deb"
+	"github.com/smira/aptly/query"
+	"github.com/smira/commander"
+	"github.com/smira/flag"
+	"sort"
+)
+
+func aptlySnapshotMirrorRepoSearch(cmd *commander.Command, args []string) error {
+	var err error
+	if 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()
+
+	q, err := query.Parse(args[1])
+	if err != nil {
+		return fmt.Errorf("unable to search: %s", err)
+	}
+
+	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)
+	}
+
+	result.ForEach(func(p *deb.Package) error {
+		context.Progress().Printf("%s\n", p)
+		return nil
+	})
+
+	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
+
+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")
+
+	return cmd
+}

cmd/snapshot_show.go

@@ -30,7 +30,7 @@ func aptlySnapshotShow(cmd *commander.Command, args []string) error {
 	fmt.Printf("Description: %s\n", snapshot.Description)
 	fmt.Printf("Number of packages: %d\n", snapshot.NumPackages())
 
-	withPackages := context.flags.Lookup("with-packages").Value.Get().(bool)
+	withPackages := context.Flags().Lookup("with-packages").Value.Get().(bool)
 	if withPackages {
 		ListPackagesRefList(snapshot.RefList())
 	}

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\n", 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
+}

console/progress.go

@@ -14,6 +14,8 @@ const (
 	codeHideProgress
 	codeStop
 	codeFlush
+	codeBarEnabled
+	codeBarDisabled
 )
 
 type printTask struct {
@@ -81,6 +83,8 @@ 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 +95,7 @@ func (p *Progress) ShutdownBar() {
 		return
 	}
 	p.bar.Finish()
+	p.queue <- printTask{code: codeBarDisabled}
 	p.bar = nil
 	p.queue <- printTask{code: codeHideProgress}
 }
@@ -151,9 +156,15 @@ 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 +172,7 @@ 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

@@ -1,9 +1,7 @@
-// +build !freebsd
-
 package console
 
 import (
-	"code.google.com/p/go.crypto/ssh/terminal"
+	"golang.org/x/crypto/ssh/terminal"
 	"syscall"
 )
 

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 +1,490 @@
+// Package context provides single entry to all resources
+package context
+
+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/swift"
+	"github.com/smira/aptly/utils"
+	"github.com/smira/commander"
+	"github.com/smira/flag"
+	"os"
+	"path/filepath"
+	"runtime"
+	"runtime/pprof"
+	"strings"
+	"sync"
+	"time"
+)
+
+// 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.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
+}
+
+// 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.Region, params.Bucket, params.ACL, params.Prefix, params.StorageClass,
+				params.EncryptionMethod, params.PlusWorkaround)
+			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.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

@@ -24,12 +24,14 @@ type Storage interface {
 	KeysByPrefix(prefix []byte) [][]byte
 	FetchByPrefix(prefix []byte) [][]byte
 	Close() error
+	ReOpen() error
 	StartBatch()
 	FinishBatch() error
 	CompactDB() error
 }
 
 type levelDB struct {
+	path  string
 	db    *leveldb.DB
 	batch *leveldb.Batch
 }
@@ -39,17 +41,21 @@ var (
 	_ Storage = &levelDB{}
 )
 
-// OpenDB opens (creates) LevelDB database
-func OpenDB(path string) (Storage, error) {
+func internalOpen(path string) (*leveldb.DB, error) {
 	o := &opt.Options{
 		Filter: filter.NewBloomFilter(10),
 	}
 
-	db, err := leveldb.OpenFile(path, o)
+	return leveldb.OpenFile(path, o)
+}
+
+// OpenDB opens (creates) LevelDB database
+func OpenDB(path string) (Storage, error) {
+	db, err := internalOpen(path)
 	if err != nil {
 		return nil, err
 	}
-	return &levelDB{db: db}, nil
+	return &levelDB{db: db, path: path}, nil
 }
 
 // RecoverDB recovers LevelDB database from corruption
@@ -95,7 +101,7 @@ 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
 		}
 	}
@@ -147,7 +153,23 @@ func (l *levelDB) FetchByPrefix(prefix []byte) [][]byte {
 
 // 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)
+	return err
 }
 
 // StartBatch starts batch processing of keys

database/leveldb_test.go

@@ -1,8 +1,9 @@
 package database
 
 import (
-	. "launchpad.net/gocheck"
 	"testing"
+
+	. "gopkg.in/check.v1"
 )
 
 // Launch gocheck tests
@@ -155,3 +156,23 @@ 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/collections.go

@@ -2,10 +2,12 @@ package deb
 
 import (
 	"github.com/smira/aptly/database"
+	"sync"
 )
 
 // CollectionFactory is a single place to generate all desired collections
 type CollectionFactory struct {
+	*sync.Mutex
 	db             database.Storage
 	packages       *PackageCollection
 	remoteRepos    *RemoteRepoCollection
@@ -16,11 +18,14 @@ type CollectionFactory struct {
 
 // NewCollectionFactory creates new factory
 func NewCollectionFactory(db database.Storage) *CollectionFactory {
-	return &CollectionFactory{db: db}
+	return &CollectionFactory{Mutex: &sync.Mutex{}, db: db}
 }
 
 // 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 +35,9 @@ 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 +47,9 @@ 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 +59,9 @@ 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 +71,24 @@ 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/deb.go

@@ -47,7 +47,7 @@ func GetControlFileFromDeb(packageFile string) (Stanza, error) {
 					return nil, fmt.Errorf("unable to read .tar archive: %s", err)
 				}
 
-				if tarHeader.Name == "./control" {
+				if tarHeader.Name == "./control" || tarHeader.Name == "control" {
 					reader := NewControlFileReader(untar)
 					stanza, err := reader.ReadStanza()
 					if err != nil {

deb/deb_test.go

@@ -2,9 +2,10 @@ package deb
 
 import (
 	"github.com/smira/aptly/utils"
-	. "launchpad.net/gocheck"
 	"path/filepath"
 	"runtime"
+
+	. "gopkg.in/check.v1"
 )
 
 type DebSuite struct {

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

@@ -11,9 +11,76 @@ import (
 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",
+	}
+
+	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",
+		"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) {
@@ -41,8 +108,16 @@ 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)

deb/format_test.go

@@ -3,8 +3,9 @@ package deb
 import (
 	"bufio"
 	"bytes"
-	. "launchpad.net/gocheck"
 	"strings"
+
+	. "gopkg.in/check.v1"
 )
 
 type ControlFileSuite struct {
@@ -107,7 +108,7 @@ func (s *ControlFileSuite) TestReadWriteStanza(c *C) {
 
 	buf := &bytes.Buffer{}
 	w := bufio.NewWriter(buf)
-	err = stanza.Copy().WriteTo(w)
+	err = stanza.Copy().WriteTo(w, false, false)
 	c.Assert(err, IsNil)
 	err = w.Flush()
 	c.Assert(err, IsNil)

deb/graph.go

@@ -0,0 +1,120 @@
+package deb
+
+import (
+	"code.google.com/p/gographviz"
+	"fmt"
+	"strings"
+)
+
+// BuildGraph generates graph contents from aptly object database
+func BuildGraph(collectionFactory *CollectionFactory) (gographviz.Interface, error) {
+	var err error
+
+	graph := gographviz.NewEscape()
+	graph.SetDir(true)
+	graph.SetName("aptly")
+
+	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("{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 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("{Repo %s|comment: %s|pkgs: %d}",
+				repo.Name, repo.Comment, repo.NumPackages()),
+		})
+		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("{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 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("{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
+	})
+
+	return graph, nil
+}

deb/import.go

@@ -0,0 +1,163 @@
+package deb
+
+import (
+	"github.com/smira/aptly/aptly"
+	"github.com/smira/aptly/utils"
+	"os"
+	"path/filepath"
+	"sort"
+	"strings"
+)
+
+// CollectPackageFiles walks filesystem collecting all candidates for package files
+func CollectPackageFiles(locations []string, reporter aptly.ResultReporter) (packageFiles, failedFiles []string, err error) {
+	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") {
+					packageFiles = append(packageFiles, path)
+				}
+
+				return nil
+			})
+		} else {
+			if strings.HasSuffix(info.Name(), ".deb") || strings.HasSuffix(info.Name(), ".udeb") ||
+				strings.HasSuffix(info.Name(), ".dsc") {
+				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) (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
+		}
+
+		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
+		}
+
+		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 +1,260 @@
+package deb
+
+import (
+	"bufio"
+	"fmt"
+	"github.com/smira/aptly/aptly"
+	"github.com/smira/aptly/utils"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+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
+	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)
+		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")
+	}
+
+	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) 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

@@ -38,9 +38,15 @@ type PackageList struct {
 	providesIndex map[string][]*Package
 }
 
+// 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
@@ -89,7 +95,7 @@ func (l *PackageList) Add(p *Package) error {
 	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
 	}
@@ -204,6 +210,19 @@ 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 += 1
+	}
+
+	return result
+}
+
 // depSliceDeduplicate removes dups in slice of Dependencies
 func depSliceDeduplicate(s []Dependency) []Dependency {
 	l := len(s)
@@ -235,6 +254,7 @@ func depSliceDeduplicate(s []Dependency) []Dependency {
 //
 // Analysis would be peformed 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 +264,7 @@ 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 +282,6 @@ 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 +289,23 @@ 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 +341,10 @@ 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)
 
@@ -364,6 +375,23 @@ 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 = NewPackageList()
+
+	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 +442,7 @@ func (l *PackageList) Filter(queries []PackageQuery, withDependencies bool, sour
 
 	if withDependencies {
 		added := result.Len()
+		result.PrepareIndex()
 
 		dependencySource := NewPackageList()
 		if source != nil {
@@ -434,12 +463,21 @@ 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{}},
 	}
 
 }
@@ -387,7 +388,7 @@ 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 +396,8 @@ 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 +405,11 @@ 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:.*")

deb/local.go

@@ -7,12 +7,13 @@ import (
 	"github.com/smira/aptly/database"
 	"github.com/ugorji/go/codec"
 	"log"
+	"sync"
 )
 
 // LocalRepo is a collection of packages created locally
 type LocalRepo struct {
 	// Permanent internal ID
-	UUID string
+	UUID string `json:"-"`
 	// User-assigned name
 	Name string
 	// Comment
@@ -88,6 +89,7 @@ func (repo *LocalRepo) RefKey() []byte {
 
 // LocalRepoCollection does listing, updating/adding/deleting of LocalRepos
 type LocalRepoCollection struct {
+	*sync.RWMutex
 	db   database.Storage
 	list []*LocalRepo
 }
@@ -95,7 +97,8 @@ type LocalRepoCollection struct {
 // NewLocalRepoCollection loads LocalRepos from DB and makes up collection
 func NewLocalRepoCollection(db database.Storage) *LocalRepoCollection {
 	result := &LocalRepoCollection{
-		db: db,
+		RWMutex: &sync.RWMutex{},
+		db:      db,
 	}
 
 	blobs := db.FetchByPrefix([]byte("L"))
@@ -104,7 +107,7 @@ func NewLocalRepoCollection(db database.Storage) *LocalRepoCollection {
 	for _, blob := range blobs {
 		r := &LocalRepo{}
 		if err := r.Decode(blob); err != nil {
-			log.Printf("Error decoding mirror: %s\n", err)
+			log.Printf("Error decoding repo: %s\n", err)
 		} else {
 			result.list = append(result.list, r)
 		}

deb/local_test.go

@@ -3,7 +3,8 @@ package deb
 import (
 	"errors"
 	"github.com/smira/aptly/database"
-	. "launchpad.net/gocheck"
+
+	. "gopkg.in/check.v1"
 )
 
 type LocalRepoSuite struct {

deb/package.go

@@ -1,6 +1,7 @@
 package deb
 
 import (
+	"encoding/json"
 	"fmt"
 	"github.com/smira/aptly/aptly"
 	"github.com/smira/aptly/utils"
@@ -24,6 +25,8 @@ type Package struct {
 	Provides []string
 	// Is this source package
 	IsSource bool
+	// Is this udeb package
+	IsUdeb bool
 	// Hash of files section
 	FilesHash uint64
 	// Is this >= 0.6 package?
@@ -36,6 +39,11 @@ type Package struct {
 	collection *PackageCollection
 }
 
+// Check interface
+var (
+	_ json.Marshaler = &Package{}
+)
+
 // NewPackageFromControlFile creates Package from parsed Debian control file
 func NewPackageFromControlFile(input Stanza) *Package {
 	result := &Package{
@@ -53,12 +61,18 @@ func NewPackageFromControlFile(input Stanza) *Package {
 
 	filesize, _ := strconv.ParseInt(input["Size"], 10, 64)
 
+	md5, ok := input["MD5sum"]
+	if !ok {
+		// there are some broken repos out there with MD5 in wrong field
+		md5 = input["MD5Sum"]
+	}
+
 	result.UpdateFiles(PackageFiles{PackageFile{
 		Filename:     filepath.Base(input["Filename"]),
 		downloadPath: filepath.Dir(input["Filename"]),
 		Checksums: utils.ChecksumInfo{
 			Size:   filesize,
-			MD5:    strings.TrimSpace(input["MD5sum"]),
+			MD5:    strings.TrimSpace(md5),
 			SHA1:   strings.TrimSpace(input["SHA1"]),
 			SHA256: strings.TrimSpace(input["SHA256"]),
 		},
@@ -66,6 +80,7 @@ func NewPackageFromControlFile(input Stanza) *Package {
 
 	delete(input, "Filename")
 	delete(input, "MD5sum")
+	delete(input, "MD5Sum")
 	delete(input, "SHA1")
 	delete(input, "SHA256")
 	delete(input, "Size")
@@ -169,6 +184,14 @@ func NewSourcePackageFromControlFile(input Stanza) (*Package, error) {
 	return result, nil
 }
 
+// NewUdebPackageFromControlFile creates .udeb Package from parsed Debian control file
+func NewUdebPackageFromControlFile(input Stanza) *Package {
+	p := NewPackageFromControlFile(input)
+	p.IsUdeb = true
+
+	return p
+}
+
 // Key returns unique key identifying package
 func (p *Package) Key(prefix string) []byte {
 	if p.V06Plus {
@@ -188,6 +211,16 @@ func (p *Package) String() string {
 	return fmt.Sprintf("%s_%s_%s", p.Name, p.Version, p.Architecture)
 }
 
+// MarshalJSON implements json.Marshaller interface
+func (p *Package) MarshalJSON() ([]byte, error) {
+	stanza := p.Stanza()
+	stanza["FilesHash"] = fmt.Sprintf("%08x", p.FilesHash)
+	stanza["Key"] = string(p.Key(""))
+	stanza["ShortKey"] = string(p.ShortKey(""))
+
+	return json.Marshal(stanza)
+}
+
 // GetField returns fields from package
 func (p *Package) GetField(name string) string {
 	switch name {
@@ -220,6 +253,9 @@ func (p *Package) GetField(name string) string {
 		if p.IsSource {
 			return "source"
 		}
+		if p.IsUdeb {
+			return "udeb"
+		}
 		return "deb"
 	case "Name":
 		return p.Name
@@ -249,7 +285,6 @@ func (p *Package) GetField(name string) string {
 	default:
 		return p.Extra()[name]
 	}
-	return ""
 }
 
 // MatchesArchitecture checks whether packages matches specified architecture
@@ -391,7 +426,9 @@ func (p *Package) Stanza() (result Stanza) {
 		result["Architecture"] = p.SourceArchitecture
 	} else {
 		result["Architecture"] = p.Architecture
-		result["Source"] = p.Source
+		if p.Source != "" {
+			result["Source"] = p.Source
+		}
 	}
 
 	if p.IsSource {
@@ -462,7 +499,8 @@ func (p *Package) Equals(p2 *Package) bool {
 }
 
 // LinkFromPool links package file from pool to dist's pool location
-func (p *Package) LinkFromPool(publishedStorage aptly.PublishedStorage, packagePool aptly.PackagePool, prefix string, component string) error {
+func (p *Package) LinkFromPool(publishedStorage aptly.PublishedStorage, packagePool aptly.PackagePool,
+	prefix, component string, force bool) error {
 	poolDir, err := p.PoolDirectory()
 	if err != nil {
 		return err
@@ -477,7 +515,7 @@ func (p *Package) LinkFromPool(publishedStorage aptly.PublishedStorage, packageP
 		relPath := filepath.Join("pool", component, poolDir)
 		publishedDirectory := filepath.Join(prefix, relPath)
 
-		err = publishedStorage.LinkFromPool(publishedDirectory, packagePool, sourcePath, f.Checksums.MD5)
+		err = publishedStorage.LinkFromPool(publishedDirectory, packagePool, sourcePath, f.Checksums.MD5, force)
 		if err != nil {
 			return err
 		}

deb/package_collection.go

@@ -15,6 +15,11 @@ type PackageCollection struct {
 	codecHandle  *codec.MsgpackHandle
 }
 
+// Verify interface
+var (
+	_ PackageCatalog = &PackageCollection{}
+)
+
 // NewPackageCollection creates new PackageCollection and binds it to database
 func NewPackageCollection(db database.Storage) *PackageCollection {
 	return &PackageCollection{
@@ -237,3 +242,49 @@ func (collection *PackageCollection) DeleteByKey(key []byte) error {
 	}
 	return nil
 }
+
+// Scan does full scan on all the packages
+func (collection *PackageCollection) Scan(q PackageQuery) (result *PackageList) {
+	result = NewPackageList()
+
+	for _, key := range collection.db.KeysByPrefix([]byte("P")) {
+		pkg, err := collection.ByKey(key)
+		if err != nil {
+			panic(fmt.Sprintf("unable to load package: %s", err))
+		}
+
+		if q.Matches(pkg) {
+			result.Add(pkg)
+		}
+	}
+
+	return
+}
+
+// Search is not implemented
+func (collection *PackageCollection) Search(dep Dependency, allMatches bool) (searchResults []*Package) {
+	panic("Not implemented")
+}
+
+// SearchSupported returns false
+func (collection *PackageCollection) SearchSupported() bool {
+	return false
+}
+
+// SearchByKey finds package by exact key
+func (collection *PackageCollection) SearchByKey(arch, name, version string) (result *PackageList) {
+	result = NewPackageList()
+
+	for _, key := range collection.db.KeysByPrefix([]byte(fmt.Sprintf("P%s %s %s", arch, name, version))) {
+		pkg, err := collection.ByKey(key)
+		if err != nil {
+			panic(fmt.Sprintf("unable to load package: %s", err))
+		}
+
+		if pkg.Architecture == arch && pkg.Name == name && pkg.Version == version {
+			result.Add(pkg)
+		}
+	}
+
+	return
+}

deb/package_collection_test.go

@@ -3,7 +3,8 @@ package deb
 import (
 	"github.com/smira/aptly/database"
 	"github.com/smira/aptly/utils"
-	. "launchpad.net/gocheck"
+
+	. "gopkg.in/check.v1"
 )
 
 type PackageCollectionSuite struct {

deb/package_files_test.go

@@ -3,9 +3,10 @@ package deb
 import (
 	"github.com/smira/aptly/files"
 	"github.com/smira/aptly/utils"
-	. "launchpad.net/gocheck"
 	"os"
 	"path/filepath"
+
+	. "gopkg.in/check.v1"
 )
 
 type PackageFilesSuite struct {

deb/package_test.go

@@ -4,10 +4,11 @@ import (
 	"bytes"
 	"github.com/smira/aptly/files"
 	"github.com/smira/aptly/utils"
-	. "launchpad.net/gocheck"
 	"os"
 	"path/filepath"
 	"regexp"
+
+	. "gopkg.in/check.v1"
 )
 
 type PackageSuite struct {
@@ -28,6 +29,7 @@ func (s *PackageSuite) TestNewFromPara(c *C) {
 	p := NewPackageFromControlFile(s.stanza)
 
 	c.Check(p.IsSource, Equals, false)
+	c.Check(p.IsUdeb, Equals, false)
 	c.Check(p.Name, Equals, "alien-arena-common")
 	c.Check(p.Version, Equals, "7.40-2")
 	c.Check(p.Architecture, Equals, "i386")
@@ -40,11 +42,27 @@ func (s *PackageSuite) TestNewFromPara(c *C) {
 	c.Check(p.deps.Depends, DeepEquals, []string{"libc6 (>= 2.7)", "alien-arena-data (>= 7.40)"})
 }
 
+func (s *PackageSuite) TestNewUdebFromPara(c *C) {
+	stanza, _ := NewControlFileReader(bytes.NewBufferString(udebPackageMeta)).ReadStanza()
+	p := NewUdebPackageFromControlFile(stanza)
+
+	c.Check(p.IsSource, Equals, false)
+	c.Check(p.IsUdeb, Equals, true)
+	c.Check(p.Name, Equals, "dmidecode-udeb")
+	c.Check(p.Version, Equals, "2.11-9")
+	c.Check(p.Architecture, Equals, "amd64")
+	c.Check(p.Provides, DeepEquals, []string(nil))
+	c.Check(p.Files(), HasLen, 1)
+	c.Check(p.Files()[0].Filename, Equals, "dmidecode-udeb_2.11-9_amd64.udeb")
+	c.Check(p.deps.Depends, DeepEquals, []string{"libc6-udeb (>= 2.13)"})
+}
+
 func (s *PackageSuite) TestNewSourceFromPara(c *C) {
 	p, err := NewSourcePackageFromControlFile(s.sourceStanza)
 
 	c.Check(err, IsNil)
 	c.Check(p.IsSource, Equals, true)
+	c.Check(p.IsUdeb, Equals, false)
 	c.Check(p.Name, Equals, "access-modifier-checker")
 	c.Check(p.Version, Equals, "1.0-4")
 	c.Check(p.Architecture, Equals, "source")
@@ -134,21 +152,28 @@ func (s *PackageSuite) TestGetField(c *C) {
 
 	p4, _ := NewSourcePackageFromControlFile(s.sourceStanza.Copy())
 
+	stanza5, _ := NewControlFileReader(bytes.NewBufferString(udebPackageMeta)).ReadStanza()
+	p5 := NewUdebPackageFromControlFile(stanza5)
+
 	c.Check(p.GetField("$Source"), Equals, "alien-arena")
 	c.Check(p2.GetField("$Source"), Equals, "alien-arena-common")
 	c.Check(p3.GetField("$Source"), Equals, "alien-arena")
 	c.Check(p4.GetField("$Source"), Equals, "")
+	c.Check(p5.GetField("$Source"), Equals, "dmidecode")
 
 	c.Check(p.GetField("$SourceVersion"), Equals, "7.40-2")
 	c.Check(p2.GetField("$SourceVersion"), Equals, "7.40-2")
 	c.Check(p3.GetField("$SourceVersion"), Equals, "3.5")
 	c.Check(p4.GetField("$SourceVersion"), Equals, "")
+	c.Check(p5.GetField("$SourceVersion"), Equals, "2.11-9")
 
 	c.Check(p.GetField("$Architecture"), Equals, "i386")
 	c.Check(p4.GetField("$Architecture"), Equals, "source")
+	c.Check(p5.GetField("$Architecture"), Equals, "amd64")
 
 	c.Check(p.GetField("$PackageType"), Equals, "deb")
 	c.Check(p4.GetField("$PackageType"), Equals, "source")
+	c.Check(p5.GetField("$PackageType"), Equals, "udeb")
 
 	c.Check(p.GetField("Name"), Equals, "alien-arena-common")
 	c.Check(p4.GetField("Name"), Equals, "access-modifier-checker")
@@ -345,13 +370,13 @@ func (s *PackageSuite) TestLinkFromPool(c *C) {
 	c.Assert(err, IsNil)
 	file.Close()
 
-	err = p.LinkFromPool(publishedStorage, packagePool, "", "non-free")
+	err = p.LinkFromPool(publishedStorage, packagePool, "", "non-free", false)
 	c.Check(err, IsNil)
 	c.Check(p.Files()[0].Filename, Equals, "alien-arena-common_7.40-2_i386.deb")
 	c.Check(p.Files()[0].downloadPath, Equals, "pool/non-free/a/alien-arena")
 
 	p.IsSource = true
-	err = p.LinkFromPool(publishedStorage, packagePool, "", "non-free")
+	err = p.LinkFromPool(publishedStorage, packagePool, "", "non-free", false)
 	c.Check(err, IsNil)
 	c.Check(p.Extra()["Directory"], Equals, "pool/non-free/a/alien-arena")
 }
@@ -374,7 +399,7 @@ func (s *PackageSuite) TestDownloadList(c *C) {
 	list, err := p.DownloadList(packagePool)
 	c.Check(err, IsNil)
 	c.Check(list, DeepEquals, []PackageDownloadTask{
-		PackageDownloadTask{
+		{
 			RepoURI:         "pool/contrib/a/alien-arena/alien-arena-common_7.40-2_i386.deb",
 			DestinationPath: poolPath,
 			Checksums: utils.ChecksumInfo{Size: 5,
@@ -455,3 +480,20 @@ Directory: pool/main/a/access-modifier-checker
 Priority: source
 Section: java
 `
+
+const udebPackageMeta = `Package: dmidecode-udeb
+Source: dmidecode
+Version: 2.11-9
+Installed-Size: 115
+Maintainer: Daniel Baumann <daniel.baumann@progress-technologies.net>
+Architecture: amd64
+Depends: libc6-udeb (>= 2.13)
+Description: SMBIOS/DMI table decoder (udeb)
+Description-md5: bdfb786c6a57097be8c8600b800e749f
+Section: debian-installer
+Priority: optional
+Filename: pool/main/d/dmidecode/dmidecode-udeb_2.11-9_amd64.udeb
+Size: 29188
+MD5sum: ae70341c4d96dcded89fa670bcfea31e
+SHA1: 9532ae4226a85805189a671ee0283f719d48a5ba
+SHA256: bbb3a2cb07f741c3995b6d4bb08d772d83582b93a0236d4ea7736bc0370fc320`

deb/ppa_test.go

@@ -2,7 +2,8 @@ package deb
 
 import (
 	"github.com/smira/aptly/utils"
-	. "launchpad.net/gocheck"
+
+	. "gopkg.in/check.v1"
 )
 
 type PpaSuite struct {

deb/publish.go

@@ -4,6 +4,7 @@ import (
 	"bufio"
 	"bytes"
 	"code.google.com/p/go-uuid/uuid"
+	"encoding/json"
 	"fmt"
 	"github.com/smira/aptly/aptly"
 	"github.com/smira/aptly/database"
@@ -15,6 +16,7 @@ import (
 	"path/filepath"
 	"sort"
 	"strings"
+	"sync"
 	"time"
 )
 
@@ -57,6 +59,21 @@ type PublishedRepo struct {
 	rePublishing bool
 }
 
+// ParsePrefix splits [storage:]prefix into components
+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
+}
+
 // walkUpTree goes from source in the tree of source snapshots/mirrors/local repos
 // gathering information about declared components and distributions
 func walkUpTree(source interface{}, collectionFactory *CollectionFactory) (rootDistributions []string, rootComponents []string) {
@@ -169,6 +186,9 @@ func NewPublishedRepo(storage, prefix, distribution string, architectures []stri
 		if distribution == "" || component == "" {
 			rootDistributions, rootComponents := walkUpTree(source, collectionFactory)
 			if distribution == "" {
+				for i := range rootDistributions {
+					rootDistributions[i] = strings.Replace(rootDistributions[i], "/", "-", -1)
+				}
 				discoveredDistributions = append(discoveredDistributions, rootDistributions...)
 			}
 			if component == "" {
@@ -228,11 +248,49 @@ func NewPublishedRepo(storage, prefix, distribution string, architectures []stri
 		}
 	}
 
+	if strings.Index(distribution, "/") != -1 {
+		return nil, fmt.Errorf("invalid distribution %s, '/' is not allowed", distribution)
+	}
+
 	result.Distribution = distribution
 
 	return result, nil
 }
 
+// MarshalJSON requires object to be "loeaded completely"
+func (p *PublishedRepo) MarshalJSON() ([]byte, error) {
+	type sourceInfo struct {
+		Component, Name string
+	}
+
+	sources := []sourceInfo{}
+	for component, item := range p.sourceItems {
+		name := ""
+		if item.snapshot != nil {
+			name = item.snapshot.Name
+		} else if item.localRepo != nil {
+			name = item.localRepo.Name
+		} else {
+			panic("no snapshot/local repo")
+		}
+		sources = append(sources, sourceInfo{
+			Component: component,
+			Name:      name,
+		})
+	}
+
+	return json.Marshal(map[string]interface{}{
+		"Architectures": p.Architectures,
+		"Distribution":  p.Distribution,
+		"Label":         p.Label,
+		"Origin":        p.Origin,
+		"Prefix":        p.Prefix,
+		"SourceKind":    p.SourceKind,
+		"Sources":       sources,
+		"Storage":       p.Storage,
+	})
+}
+
 // String returns human-readable represenation of PublishedRepo
 func (p *PublishedRepo) String() string {
 	var sources = []string{}
@@ -393,7 +451,7 @@ func (p *PublishedRepo) GetLabel() string {
 
 // Publish publishes snapshot (repository) contents, links package files, generates Packages & Release files, signs them
 func (p *PublishedRepo) Publish(packagePool aptly.PackagePool, publishedStorageProvider aptly.PublishedStorageProvider,
-	collectionFactory *CollectionFactory, signer utils.Signer, progress aptly.Progress) error {
+	collectionFactory *CollectionFactory, signer utils.Signer, progress aptly.Progress, forceOverwrite bool) error {
 	publishedStorage := publishedStorageProvider.GetPublishedStorage(p.Storage)
 
 	err := publishedStorage.MkDir(filepath.Join(p.Prefix, "pool"))
@@ -440,9 +498,6 @@ func (p *PublishedRepo) Publish(packagePool aptly.PackagePool, publishedStorageP
 		suffix = ".tmp"
 	}
 
-	generatedFiles := map[string]utils.ChecksumInfo{}
-	renameMap := map[string]string{}
-
 	if progress != nil {
 		progress.Printf("Generating metadata files and linking package files...\n")
 	}
@@ -454,46 +509,53 @@ func (p *PublishedRepo) Publish(packagePool aptly.PackagePool, publishedStorageP
 	}
 	defer os.RemoveAll(tempDir)
 
+	indexes := newIndexFiles(publishedStorage, basePath, tempDir, suffix)
+
 	for component, list := range lists {
-		var relativePath string
+		hadUdebs := false
 
-		// For all architectures, generate packages/sources files
+		// For all architectures, pregenerate packages/sources files
 		for _, arch := range p.Architectures {
+			indexes.PackageIndex(component, arch, false)
+		}
+
+		if progress != nil {
+			progress.InitBar(int64(list.Len()), false)
+		}
+
+		list.PrepareIndex()
+
+		err = list.ForEachIndexed(func(pkg *Package) error {
 			if progress != nil {
-				progress.InitBar(int64(list.Len()), false)
+				progress.AddBar(1)
 			}
 
-			if arch == "source" {
-				relativePath = filepath.Join(component, "source", "Sources")
-			} else {
-				relativePath = filepath.Join(component, fmt.Sprintf("binary-%s", arch), "Packages")
-			}
-			err = publishedStorage.MkDir(filepath.Dir(filepath.Join(basePath, relativePath)))
-			if err != nil {
-				return err
-			}
-
-			var packagesFile *os.File
-
-			packagesFileName := filepath.Join(tempDir, fmt.Sprintf("pkgs_%s_%s", component, arch))
-			packagesFile, err = os.Create(packagesFileName)
-			if err != nil {
-				return fmt.Errorf("unable to create temporary Packages file: %s", err)
-			}
-
-			bufWriter := bufio.NewWriter(packagesFile)
-
-			err = list.ForEach(func(pkg *Package) error {
-				if progress != nil {
-					progress.AddBar(1)
-				}
+			matches := false
+			for _, arch := range p.Architectures {
 				if pkg.MatchesArchitecture(arch) {
-					err = pkg.LinkFromPool(publishedStorage, packagePool, p.Prefix, component)
+					matches = true
+					break
+				}
+			}
+
+			if matches {
+				hadUdebs = hadUdebs || pkg.IsUdeb
+				err = pkg.LinkFromPool(publishedStorage, packagePool, p.Prefix, component, forceOverwrite)
+				if err != nil {
+					return err
+				}
+			}
+
+			for _, arch := range p.Architectures {
+				if pkg.MatchesArchitecture(arch) {
+					var bufWriter *bufio.Writer
+
+					bufWriter, err = indexes.PackageIndex(component, arch, pkg.IsUdeb).BufWriter()
 					if err != nil {
 						return err
 					}
 
-					err = pkg.Stanza().WriteTo(bufWriter)
+					err = pkg.Stanza().WriteTo(bufWriter, pkg.IsSource, false)
 					if err != nil {
 						return err
 					}
@@ -501,116 +563,68 @@ func (p *PublishedRepo) Publish(packagePool aptly.PackagePool, publishedStorageP
 					if err != nil {
 						return err
 					}
-
-					pkg.files = nil
-					pkg.deps = nil
-					pkg.extra = nil
-
-				}
-
-				return nil
-			})
-
-			if err != nil {
-				return fmt.Errorf("unable to process packages: %s", err)
-			}
-
-			err = bufWriter.Flush()
-			if err != nil {
-				return fmt.Errorf("unable to write Packages file: %s", err)
-			}
-
-			err = utils.CompressFile(packagesFile)
-			if err != nil {
-				return fmt.Errorf("unable to compress Packages files: %s", err)
-			}
-
-			packagesFile.Close()
-
-			for _, ext := range []string{"", ".gz", ".bz2"} {
-				var checksumInfo utils.ChecksumInfo
-
-				checksumInfo, err = utils.ChecksumsForFile(packagesFileName + ext)
-				if err != nil {
-					return fmt.Errorf("unable to collect checksums: %s", err)
-				}
-				generatedFiles[relativePath+ext] = checksumInfo
-
-				err = publishedStorage.PutFile(filepath.Join(basePath, relativePath+suffix+ext), packagesFileName+ext)
-				if err != nil {
-					return fmt.Errorf("unable to publish file: %s", err)
-				}
-
-				if suffix != "" {
-					renameMap[filepath.Join(basePath, relativePath+suffix+ext)] = filepath.Join(basePath, relativePath+ext)
 				}
 			}
 
-			if progress != nil {
-				progress.ShutdownBar()
+			pkg.files = nil
+			pkg.deps = nil
+			pkg.extra = nil
+
+			return nil
+		})
+
+		if err != nil {
+			return fmt.Errorf("unable to process packages: %s", err)
+		}
+
+		if progress != nil {
+			progress.ShutdownBar()
+		}
+
+		udebs := []bool{false}
+		if hadUdebs {
+			udebs = append(udebs, true)
+
+			// For all architectures, pregenerate .udeb indexes
+			for _, arch := range p.Architectures {
+				indexes.PackageIndex(component, arch, true)
 			}
 		}
 
 		// For all architectures, generate Release files
 		for _, arch := range p.Architectures {
-			release := make(Stanza)
-			release["Archive"] = p.Distribution
-			release["Architecture"] = arch
-			release["Component"] = component
-			release["Origin"] = p.GetOrigin()
-			release["Label"] = p.GetLabel()
+			for _, udeb := range udebs {
+				release := make(Stanza)
+				release["Archive"] = p.Distribution
+				release["Architecture"] = arch
+				release["Component"] = component
+				release["Origin"] = p.GetOrigin()
+				release["Label"] = p.GetLabel()
 
-			if arch == "source" {
-				relativePath = filepath.Join(component, "source", "Release")
-			} else {
-				relativePath = filepath.Join(component, fmt.Sprintf("binary-%s", arch), "Release")
+				var bufWriter *bufio.Writer
+				bufWriter, err = indexes.ReleaseIndex(component, arch, udeb).BufWriter()
+
+				err = release.WriteTo(bufWriter, false, true)
+				if err != nil {
+					return fmt.Errorf("unable to create Release file: %s", err)
+				}
 			}
-
-			var file *os.File
-
-			fileName := filepath.Join(tempDir, fmt.Sprintf("release_%s_%s", component, arch))
-			file, err = os.Create(fileName)
-			if err != nil {
-				return fmt.Errorf("unable to create temporary Release file: %s", err)
-			}
-
-			bufWriter := bufio.NewWriter(file)
-
-			err = release.WriteTo(bufWriter)
-			if err != nil {
-				return fmt.Errorf("unable to create Release file: %s", err)
-			}
-
-			err = bufWriter.Flush()
-			if err != nil {
-				return fmt.Errorf("unable to create Release file: %s", err)
-			}
-
-			file.Close()
-
-			var checksumInfo utils.ChecksumInfo
-			checksumInfo, err = utils.ChecksumsForFile(fileName)
-			if err != nil {
-				return fmt.Errorf("unable to collect checksums: %s", err)
-			}
-			generatedFiles[relativePath] = checksumInfo
-
-			err = publishedStorage.PutFile(filepath.Join(basePath, relativePath+suffix), fileName)
-			if err != nil {
-				file.Close()
-				return fmt.Errorf("unable to publish file: %s", err)
-			}
-
-			if suffix != "" {
-				renameMap[filepath.Join(basePath, relativePath+suffix)] = filepath.Join(basePath, relativePath)
-			}
-
 		}
 	}
 
+	if progress != nil {
+		progress.Printf("Finalizing metadata files...\n")
+	}
+
+	err = indexes.FinalizeAll(progress)
+	if err != nil {
+		return err
+	}
+
 	release := make(Stanza)
 	release["Origin"] = p.GetOrigin()
 	release["Label"] = p.GetLabel()
+	release["Suite"] = p.Distribution
 	release["Codename"] = p.Distribution
 	release["Date"] = time.Now().UTC().Format("Mon, 2 Jan 2006 15:04:05 MST")
 	release["Architectures"] = strings.Join(utils.StrSlicesSubstract(p.Architectures, []string{"source"}), " ")
@@ -621,80 +635,36 @@ func (p *PublishedRepo) Publish(packagePool aptly.PackagePool, publishedStorageP
 
 	release["Components"] = strings.Join(p.Components(), " ")
 
-	for path, info := range generatedFiles {
+	for path, info := range indexes.generatedFiles {
 		release["MD5Sum"] += fmt.Sprintf(" %s %8d %s\n", info.MD5, info.Size, path)
 		release["SHA1"] += fmt.Sprintf(" %s %8d %s\n", info.SHA1, info.Size, path)
 		release["SHA256"] += fmt.Sprintf(" %s %8d %s\n", info.SHA256, info.Size, path)
 	}
 
-	var releaseFile *os.File
-	releaseFilename := filepath.Join(tempDir, "Release")
-	releaseFile, err = os.Create(releaseFilename)
+	releaseFile := indexes.ReleaseFile()
+	bufWriter, err := releaseFile.BufWriter()
 	if err != nil {
-		return fmt.Errorf("unable to create temporary Release file: %s", err)
+		return err
 	}
 
-	bufWriter := bufio.NewWriter(releaseFile)
-
-	err = release.WriteTo(bufWriter)
+	err = release.WriteTo(bufWriter, false, true)
 	if err != nil {
 		return fmt.Errorf("unable to create Release file: %s", err)
 	}
 
-	err = bufWriter.Flush()
-	if err != nil {
-		return fmt.Errorf("unable to create Release file: %s", err)
-	}
-
-	releaseFile.Close()
-
-	if suffix != "" {
-		renameMap[filepath.Join(basePath, "Release"+suffix)] = filepath.Join(basePath, "Release")
-	}
-
-	err = publishedStorage.PutFile(filepath.Join(basePath, "Release"+suffix), releaseFilename)
-	if err != nil {
-		return fmt.Errorf("unable to publish file: %s", err)
-	}
-
 	// Signing files might output to console, so flush progress writer first
 	if progress != nil {
 		progress.Flush()
 	}
 
-	if signer != nil {
-		err = signer.DetachedSign(releaseFilename, releaseFilename+".gpg")
-		if err != nil {
-			return fmt.Errorf("unable to sign Release file: %s", err)
-		}
-
-		err = signer.ClearSign(releaseFilename, filepath.Join(filepath.Dir(releaseFilename), "InRelease"+suffix))
-		if err != nil {
-			return fmt.Errorf("unable to sign Release file: %s", err)
-		}
-
-		if suffix != "" {
-			renameMap[filepath.Join(basePath, "Release"+suffix+".gpg")] = filepath.Join(basePath, "Release.gpg")
-			renameMap[filepath.Join(basePath, "InRelease"+suffix)] = filepath.Join(basePath, "InRelease")
-		}
-
-		err = publishedStorage.PutFile(filepath.Join(basePath, "Release"+suffix+".gpg"), releaseFilename+".gpg")
-		if err != nil {
-			return fmt.Errorf("unable to publish file: %s", err)
-		}
-
-		err = publishedStorage.PutFile(filepath.Join(basePath, "InRelease"+suffix),
-			filepath.Join(filepath.Dir(releaseFilename), "InRelease"+suffix))
-		if err != nil {
-			return fmt.Errorf("unable to publish file: %s", err)
-		}
+	err = releaseFile.Finalize(signer)
+	if err != nil {
+		return err
 	}
 
-	for oldName, newName := range renameMap {
-		err = publishedStorage.RenameFile(oldName, newName)
-		if err != nil {
-			return fmt.Errorf("unable to rename: %s", err)
-		}
+	err = indexes.RenameFiles()
+	if err != nil {
+		return err
 	}
 
 	return nil
@@ -736,6 +706,7 @@ func (p *PublishedRepo) RemoveFiles(publishedStorageProvider aptly.PublishedStor
 
 // PublishedRepoCollection does listing, updating/adding/deleting of PublishedRepos
 type PublishedRepoCollection struct {
+	*sync.RWMutex
 	db   database.Storage
 	list []*PublishedRepo
 }
@@ -743,7 +714,8 @@ type PublishedRepoCollection struct {
 // NewPublishedRepoCollection loads PublishedRepos from DB and makes up collection
 func NewPublishedRepoCollection(db database.Storage) *PublishedRepoCollection {
 	result := &PublishedRepoCollection{
-		db: db,
+		RWMutex: &sync.RWMutex{},
+		db:      db,
 	}
 
 	blobs := db.FetchByPrefix([]byte("U"))

deb/publish_test.go

@@ -9,9 +9,10 @@ import (
 	"github.com/smira/aptly/files"
 	"github.com/ugorji/go/codec"
 	"io/ioutil"
-	. "launchpad.net/gocheck"
 	"os"
 	"path/filepath"
+
+	. "gopkg.in/check.v1"
 )
 
 type pathExistsChecker struct {
@@ -36,9 +37,15 @@ func (n *NullSigner) Init() error {
 func (n *NullSigner) SetKey(keyRef string) {
 }
 
+func (n *NullSigner) SetBatch(batch bool) {
+}
+
 func (n *NullSigner) SetKeyRing(keyring, secretKeyring string) {
 }
 
+func (n *NullSigner) SetPassphrase(passphrase, passphraseFile string) {
+}
+
 func (n *NullSigner) DetachedSign(source string, destination string) error {
 	return ioutil.WriteFile(destination, []byte{}, 0644)
 }
@@ -90,7 +97,7 @@ func (s *PublishedRepoSuite) SetUpTest(c *C) {
 		"files:other": s.publishedStorage2}}
 	s.packagePool = files.NewPackagePool(s.root)
 
-	repo, _ := NewRemoteRepo("yandex", "http://mirror.yandex.ru/debian/", "squeeze", []string{"main"}, []string{}, false)
+	repo, _ := NewRemoteRepo("yandex", "http://mirror.yandex.ru/debian/", "squeeze", []string{"main"}, []string{}, false, false)
 	repo.packageRefs = s.reflist
 	s.factory.RemoteRepoCollection().Add(repo)
 
@@ -164,6 +171,9 @@ func (s *PublishedRepoSuite) TestNewPublishedRepo(c *C) {
 
 	_, err := NewPublishedRepo("", ".", "a", nil, []string{"main", "main"}, []interface{}{s.snapshot, s.snapshot2}, s.factory)
 	c.Check(err, ErrorMatches, "duplicate component name: main")
+
+	_, err = NewPublishedRepo("", ".", "wheezy/updates", nil, []string{"main"}, []interface{}{s.snapshot}, s.factory)
+	c.Check(err, ErrorMatches, "invalid distribution wheezy/updates, '/' is not allowed")
 }
 
 func (s *PublishedRepoSuite) TestPrefixNormalization(c *C) {
@@ -264,6 +274,13 @@ func (s *PublishedRepoSuite) TestDistributionComponentGuessing(c *C) {
 	c.Check(repo.Distribution, Equals, "precise")
 	c.Check(repo.Components(), DeepEquals, []string{"contrib"})
 
+	s.localRepo.DefaultDistribution = "precise/updates"
+
+	repo, err = NewPublishedRepo("", "ppa", "", nil, []string{""}, []interface{}{s.localRepo}, s.factory)
+	c.Check(err, IsNil)
+	c.Check(repo.Distribution, Equals, "precise-updates")
+	c.Check(repo.Components(), DeepEquals, []string{"contrib"})
+
 	repo, err = NewPublishedRepo("", "ppa", "", nil, []string{"", "contrib"}, []interface{}{s.snapshot, s.snapshot2}, s.factory)
 	c.Check(err, IsNil)
 	c.Check(repo.Distribution, Equals, "squeeze")
@@ -274,7 +291,7 @@ func (s *PublishedRepoSuite) TestDistributionComponentGuessing(c *C) {
 }
 
 func (s *PublishedRepoSuite) TestPublish(c *C) {
-	err := s.repo.Publish(s.packagePool, s.provider, s.factory, &NullSigner{}, nil)
+	err := s.repo.Publish(s.packagePool, s.provider, s.factory, &NullSigner{}, nil, false)
 	c.Assert(err, IsNil)
 
 	c.Check(s.repo.Architectures, DeepEquals, []string{"i386"})
@@ -321,7 +338,7 @@ func (s *PublishedRepoSuite) TestPublish(c *C) {
 }
 
 func (s *PublishedRepoSuite) TestPublishNoSigner(c *C) {
-	err := s.repo.Publish(s.packagePool, s.provider, s.factory, nil, nil)
+	err := s.repo.Publish(s.packagePool, s.provider, s.factory, nil, nil, false)
 	c.Assert(err, IsNil)
 
 	c.Check(filepath.Join(s.publishedStorage.PublicPath(), "ppa/dists/squeeze/Release"), PathExists)
@@ -329,7 +346,7 @@ func (s *PublishedRepoSuite) TestPublishNoSigner(c *C) {
 }
 
 func (s *PublishedRepoSuite) TestPublishLocalRepo(c *C) {
-	err := s.repo2.Publish(s.packagePool, s.provider, s.factory, nil, nil)
+	err := s.repo2.Publish(s.packagePool, s.provider, s.factory, nil, nil, false)
 	c.Assert(err, IsNil)
 
 	c.Check(filepath.Join(s.publishedStorage.PublicPath(), "ppa/dists/maverick/Release"), PathExists)
@@ -337,7 +354,7 @@ func (s *PublishedRepoSuite) TestPublishLocalRepo(c *C) {
 }
 
 func (s *PublishedRepoSuite) TestPublishLocalSourceRepo(c *C) {
-	err := s.repo4.Publish(s.packagePool, s.provider, s.factory, nil, nil)
+	err := s.repo4.Publish(s.packagePool, s.provider, s.factory, nil, nil, false)
 	c.Assert(err, IsNil)
 
 	c.Check(filepath.Join(s.publishedStorage.PublicPath(), "ppa/dists/maverick/Release"), PathExists)
@@ -345,7 +362,7 @@ func (s *PublishedRepoSuite) TestPublishLocalSourceRepo(c *C) {
 }
 
 func (s *PublishedRepoSuite) TestPublishOtherStorage(c *C) {
-	err := s.repo5.Publish(s.packagePool, s.provider, s.factory, nil, nil)
+	err := s.repo5.Publish(s.packagePool, s.provider, s.factory, nil, nil, false)
 	c.Assert(err, IsNil)
 
 	c.Check(filepath.Join(s.publishedStorage2.PublicPath(), "ppa/dists/maverick/Release"), PathExists)

deb/query.go

@@ -7,14 +7,22 @@ import (
 	"strings"
 )
 
+// PackageCatalog is abstraction on top of PackageCollection and PackageList
+type PackageCatalog interface {
+	Scan(q PackageQuery) (result *PackageList)
+	Search(dep Dependency, allMatches bool) (searchResults []*Package)
+	SearchSupported() bool
+	SearchByKey(arch, name, version string) (result *PackageList)
+}
+
 // PackageQuery is interface of predicate on Package
 type PackageQuery interface {
 	// Matches calculates match of condition against package
 	Matches(pkg *Package) bool
 	// Fast returns if search strategy is possible for this query
-	Fast() bool
+	Fast(list PackageCatalog) bool
 	// Query performs search on package list
-	Query(list *PackageList) *PackageList
+	Query(list PackageCatalog) *PackageList
 	// String interface
 	String() string
 }
@@ -60,13 +68,13 @@ func (q *OrQuery) Matches(pkg *Package) bool {
 }
 
 // Fast is true only if both parts are fast
-func (q *OrQuery) Fast() bool {
-	return q.L.Fast() && q.R.Fast()
+func (q *OrQuery) Fast(list PackageCatalog) bool {
+	return q.L.Fast(list) && q.R.Fast(list)
 }
 
 // Query strategy depends on nodes
-func (q *OrQuery) Query(list *PackageList) (result *PackageList) {
-	if q.Fast() {
+func (q *OrQuery) Query(list PackageCatalog) (result *PackageList) {
+	if q.Fast(list) {
 		result = q.L.Query(list)
 		result.Append(q.R.Query(list))
 	} else {
@@ -86,16 +94,16 @@ func (q *AndQuery) Matches(pkg *Package) bool {
 }
 
 // Fast is true if any of the parts are fast
-func (q *AndQuery) Fast() bool {
-	return q.L.Fast() || q.R.Fast()
+func (q *AndQuery) Fast(list PackageCatalog) bool {
+	return q.L.Fast(list) || q.R.Fast(list)
 }
 
 // Query strategy depends on nodes
-func (q *AndQuery) Query(list *PackageList) (result *PackageList) {
-	if !q.Fast() {
+func (q *AndQuery) Query(list PackageCatalog) (result *PackageList) {
+	if !q.Fast(list) {
 		result = list.Scan(q)
 	} else {
-		if q.L.Fast() {
+		if q.L.Fast(list) {
 			result = q.L.Query(list)
 			result = result.Scan(q.R)
 		} else {
@@ -117,12 +125,12 @@ func (q *NotQuery) Matches(pkg *Package) bool {
 }
 
 // Fast is false
-func (q *NotQuery) Fast() bool {
+func (q *NotQuery) Fast(list PackageCatalog) bool {
 	return false
 }
 
 // Query strategy is scan always
-func (q *NotQuery) Query(list *PackageList) (result *PackageList) {
+func (q *NotQuery) Query(list PackageCatalog) (result *PackageList) {
 	result = list.Scan(q)
 	return
 }
@@ -170,13 +178,13 @@ func (q *FieldQuery) Matches(pkg *Package) bool {
 }
 
 // Query runs iteration through list
-func (q *FieldQuery) Query(list *PackageList) (result *PackageList) {
+func (q *FieldQuery) Query(list PackageCatalog) (result *PackageList) {
 	result = list.Scan(q)
 	return
 }
 
 // Fast depends on the query
-func (q *FieldQuery) Fast() bool {
+func (q *FieldQuery) Fast(list PackageCatalog) bool {
 	return false
 }
 
@@ -215,15 +223,19 @@ func (q *DependencyQuery) Matches(pkg *Package) bool {
 }
 
 // Fast is always true for dependency query
-func (q *DependencyQuery) Fast() bool {
-	return true
+func (q *DependencyQuery) Fast(list PackageCatalog) bool {
+	return list.SearchSupported()
 }
 
 // Query runs PackageList.Search
-func (q *DependencyQuery) Query(list *PackageList) (result *PackageList) {
-	result = NewPackageList()
-	for _, pkg := range list.Search(q.Dep, true) {
-		result.Add(pkg)
+func (q *DependencyQuery) Query(list PackageCatalog) (result *PackageList) {
+	if q.Fast(list) {
+		result = NewPackageList()
+		for _, pkg := range list.Search(q.Dep, true) {
+			result.Add(pkg)
+		}
+	} else {
+		result = list.Scan(q)
 	}
 
 	return
@@ -240,20 +252,13 @@ func (q *PkgQuery) Matches(pkg *Package) bool {
 }
 
 // Fast is always true for package query
-func (q *PkgQuery) Fast() bool {
+func (q *PkgQuery) Fast(list PackageCatalog) bool {
 	return true
 }
 
 // Query looks up specific package
-func (q *PkgQuery) Query(list *PackageList) (result *PackageList) {
-	result = NewPackageList()
-
-	pkg := list.packages["P"+q.Arch+" "+q.Pkg+" "+q.Version]
-	if pkg != nil {
-		result.Add(pkg)
-	}
-
-	return
+func (q *PkgQuery) Query(list PackageCatalog) (result *PackageList) {
+	return list.SearchByKey(q.Arch, q.Pkg, q.Version)
 }
 
 // String interface

deb/reflist.go

@@ -2,6 +2,8 @@ package deb
 
 import (
 	"bytes"
+	"encoding/json"
+	"github.com/AlekSi/pointer"
 	"github.com/ugorji/go/codec"
 	"sort"
 )
@@ -84,6 +86,29 @@ func (l *PackageRefList) ForEach(handler func([]byte) error) error {
 	return err
 }
 
+// Has checks whether package is part of reflist
+func (l *PackageRefList) Has(p *Package) bool {
+	key := p.Key("")
+
+	i := sort.Search(len(l.Refs), func(j int) bool { return bytes.Compare(l.Refs[j], key) >= 0 })
+	return i < len(l.Refs) && bytes.Compare(l.Refs[i], key) == 0
+}
+
+// Strings builds list of strings with package keys
+func (l *PackageRefList) Strings() []string {
+	if l == nil {
+		return []string{}
+	}
+
+	result := make([]string, l.Len())
+
+	for i := 0; i < l.Len(); i++ {
+		result[i] = string(l.Refs[i])
+	}
+
+	return result
+}
+
 // Substract returns all packages in l that are not in r
 func (l *PackageRefList) Substract(r *PackageRefList) *PackageRefList {
 	result := &PackageRefList{Refs: make([][]byte, 0, 128)}
@@ -131,6 +156,27 @@ type PackageDiff struct {
 	Left, Right *Package
 }
 
+// Check interface
+var (
+	_ json.Marshaler = PackageDiff{}
+)
+
+// MarshalJSON implements json.Marshaler interface
+func (d PackageDiff) MarshalJSON() ([]byte, error) {
+	serialized := struct {
+		Left, Right *string
+	}{}
+
+	if d.Left != nil {
+		serialized.Left = pointer.ToString(string(d.Left.Key("")))
+	}
+	if d.Right != nil {
+		serialized.Right = pointer.ToString(string(d.Right.Key("")))
+	}
+
+	return json.Marshal(serialized)
+}
+
 // PackageDiffs is a list of PackageDiff records
 type PackageDiffs []PackageDiff
 
@@ -262,13 +308,23 @@ func (l *PackageRefList) Merge(r *PackageRefList, overrideMatching bool) (result
 			overridenName = nil
 			overriddenArch = nil
 		} else {
+			partsL := bytes.Split(rl, []byte(" "))
+			archL, nameL, versionL := partsL[0][1:], partsL[1], partsL[2]
+
+			partsR := bytes.Split(rr, []byte(" "))
+			archR, nameR, versionR := partsR[0][1:], partsR[1], partsR[2]
+
+			if bytes.Equal(archL, archR) && bytes.Equal(nameL, nameR) && bytes.Equal(versionL, versionR) {
+				// conflicting duplicates with same arch, name, version, but different file hash
+				result.Refs = append(result.Refs, r.Refs[ir])
+				il++
+				ir++
+				overridenName = nil
+				overriddenArch = nil
+				continue
+			}
+
 			if overrideMatching {
-				partsL := bytes.Split(rl, []byte(" "))
-				archL, nameL := partsL[0][1:], partsL[1]
-
-				partsR := bytes.Split(rr, []byte(" "))
-				archR, nameR := partsR[0][1:], partsR[1]
-
 				if bytes.Equal(archL, overriddenArch) && bytes.Equal(nameL, overridenName) {
 					// this package has already been overriden on the right
 					il++
@@ -306,15 +362,15 @@ func (l *PackageRefList) Merge(r *PackageRefList, overrideMatching bool) (result
 // packages and reduces it to only the latest of each package. The operations
 // are done in-place. This implements a "latest wins" approach which can be used
 // while merging two or more snapshots together.
-func FilterLatestRefs(r *PackageRefList) {
+func (l *PackageRefList) FilterLatestRefs() {
 	var (
 		lastArch, lastName, lastVer []byte
 		arch, name, ver             []byte
 		parts                       [][]byte
 	)
 
-	for i := 0; i < len(r.Refs); i++ {
-		parts = bytes.Split(r.Refs[i][1:], []byte(" "))
+	for i := 0; i < len(l.Refs); i++ {
+		parts = bytes.Split(l.Refs[i][1:], []byte(" "))
 		arch, name, ver = parts[0], parts[1], parts[2]
 
 		if bytes.Equal(arch, lastArch) && bytes.Equal(name, lastName) {
@@ -324,10 +380,10 @@ func FilterLatestRefs(r *PackageRefList) {
 			// Remove the older refs from the result
 			if vres > 0 {
 				// ver[i] > ver[i-1], remove element i-1
-				r.Refs = append(r.Refs[:i-1], r.Refs[i:]...)
+				l.Refs = append(l.Refs[:i-1], l.Refs[i:]...)
 			} else {
 				// ver[i] < ver[i-1], remove element i
-				r.Refs = append(r.Refs[:i], r.Refs[i+1:]...)
+				l.Refs = append(l.Refs[:i], l.Refs[i+1:]...)
 				arch, name, ver = lastArch, lastName, lastVer
 			}
 

deb/reflist_test.go

@@ -3,7 +3,8 @@ package deb
 import (
 	"errors"
 	"github.com/smira/aptly/database"
-	. "launchpad.net/gocheck"
+
+	. "gopkg.in/check.v1"
 )
 
 type PackageRefListSuite struct {
@@ -128,6 +129,19 @@ func (s *PackageRefListSuite) TestPackageRefListForeach(c *C) {
 	c.Check(err, Equals, e)
 }
 
+func (s *PackageRefListSuite) TestHas(c *C) {
+	s.list.Add(s.p1)
+	s.list.Add(s.p3)
+	s.list.Add(s.p5)
+	reflist := NewPackageRefListFromPackageList(s.list)
+
+	c.Check(reflist.Has(s.p1), Equals, true)
+	c.Check(reflist.Has(s.p3), Equals, true)
+	c.Check(reflist.Has(s.p5), Equals, true)
+	c.Check(reflist.Has(s.p2), Equals, true)
+	c.Check(reflist.Has(s.p6), Equals, false)
+}
+
 func (s *PackageRefListSuite) TestSubstract(c *C) {
 	r1 := []byte("r1")
 	r2 := []byte("r2")
@@ -155,13 +169,13 @@ func (s *PackageRefListSuite) TestDiff(c *C) {
 	coll := NewPackageCollection(db)
 
 	packages := []*Package{
-		&Package{Name: "lib", Version: "1.0", Architecture: "i386"},      //0
-		&Package{Name: "dpkg", Version: "1.7", Architecture: "i386"},     //1
-		&Package{Name: "data", Version: "1.1~bp1", Architecture: "all"},  //2
-		&Package{Name: "app", Version: "1.1~bp1", Architecture: "i386"},  //3
-		&Package{Name: "app", Version: "1.1~bp2", Architecture: "i386"},  //4
-		&Package{Name: "app", Version: "1.1~bp2", Architecture: "amd64"}, //5
-		&Package{Name: "xyz", Version: "3.0", Architecture: "sparc"},     //6
+		{Name: "lib", Version: "1.0", Architecture: "i386"},      //0
+		{Name: "dpkg", Version: "1.7", Architecture: "i386"},     //1
+		{Name: "data", Version: "1.1~bp1", Architecture: "all"},  //2
+		{Name: "app", Version: "1.1~bp1", Architecture: "i386"},  //3
+		{Name: "app", Version: "1.1~bp2", Architecture: "i386"},  //4
+		{Name: "app", Version: "1.1~bp2", Architecture: "amd64"}, //5
+		{Name: "xyz", Version: "3.0", Architecture: "sparc"},     //6
 	}
 
 	for _, p := range packages {
@@ -227,17 +241,20 @@ func (s *PackageRefListSuite) TestMerge(c *C) {
 	coll := NewPackageCollection(db)
 
 	packages := []*Package{
-		&Package{Name: "lib", Version: "1.0", Architecture: "i386"},      //0
-		&Package{Name: "dpkg", Version: "1.7", Architecture: "i386"},     //1
-		&Package{Name: "data", Version: "1.1~bp1", Architecture: "all"},  //2
-		&Package{Name: "app", Version: "1.1~bp1", Architecture: "i386"},  //3
-		&Package{Name: "app", Version: "1.1~bp2", Architecture: "i386"},  //4
-		&Package{Name: "app", Version: "1.1~bp2", Architecture: "amd64"}, //5
-		&Package{Name: "dpkg", Version: "1.0", Architecture: "i386"},     //6
-		&Package{Name: "xyz", Version: "1.0", Architecture: "sparc"},     //7
+		{Name: "lib", Version: "1.0", Architecture: "i386"},                      //0
+		{Name: "dpkg", Version: "1.7", Architecture: "i386"},                     //1
+		{Name: "data", Version: "1.1~bp1", Architecture: "all"},                  //2
+		{Name: "app", Version: "1.1~bp1", Architecture: "i386"},                  //3
+		{Name: "app", Version: "1.1~bp2", Architecture: "i386"},                  //4
+		{Name: "app", Version: "1.1~bp2", Architecture: "amd64"},                 //5
+		{Name: "dpkg", Version: "1.0", Architecture: "i386"},                     //6
+		{Name: "xyz", Version: "1.0", Architecture: "sparc"},                     //7
+		{Name: "dpkg", Version: "1.0", Architecture: "i386", FilesHash: 0x34445}, //8
+		{Name: "app", Version: "1.1~bp2", Architecture: "i386", FilesHash: 0x44}, //9
 	}
 
 	for _, p := range packages {
+		p.V06Plus = true
 		coll.Update(p)
 	}
 
@@ -255,35 +272,62 @@ func (s *PackageRefListSuite) TestMerge(c *C) {
 	listB.Add(packages[5])
 	listB.Add(packages[6])
 
+	listC := NewPackageList()
+	listC.Add(packages[0])
+	listC.Add(packages[8])
+	listC.Add(packages[9])
+
 	reflistA := NewPackageRefListFromPackageList(listA)
 	reflistB := NewPackageRefListFromPackageList(listB)
+	reflistC := NewPackageRefListFromPackageList(listC)
 
 	mergeAB := reflistA.Merge(reflistB, true)
 	mergeBA := reflistB.Merge(reflistA, true)
+	mergeAC := reflistA.Merge(reflistC, true)
+	mergeBC := reflistB.Merge(reflistC, true)
+	mergeCB := reflistC.Merge(reflistB, true)
 
 	c.Check(toStrSlice(mergeAB), DeepEquals,
-		[]string{"Pall data 1.1~bp1", "Pamd64 app 1.1~bp2", "Pi386 app 1.1~bp2", "Pi386 dpkg 1.0", "Pi386 lib 1.0", "Psparc xyz 1.0"})
+		[]string{"Pall data 1.1~bp1 00000000", "Pamd64 app 1.1~bp2 00000000", "Pi386 app 1.1~bp2 00000000", "Pi386 dpkg 1.0 00000000", "Pi386 lib 1.0 00000000", "Psparc xyz 1.0 00000000"})
 	c.Check(toStrSlice(mergeBA), DeepEquals,
-		[]string{"Pall data 1.1~bp1", "Pamd64 app 1.1~bp2", "Pi386 app 1.1~bp1", "Pi386 dpkg 1.7", "Pi386 lib 1.0", "Psparc xyz 1.0"})
+		[]string{"Pall data 1.1~bp1 00000000", "Pamd64 app 1.1~bp2 00000000", "Pi386 app 1.1~bp1 00000000", "Pi386 dpkg 1.7 00000000", "Pi386 lib 1.0 00000000", "Psparc xyz 1.0 00000000"})
+	c.Check(toStrSlice(mergeAC), DeepEquals,
+		[]string{"Pall data 1.1~bp1 00000000", "Pi386 app 1.1~bp2 00000044", "Pi386 dpkg 1.0 00034445", "Pi386 lib 1.0 00000000", "Psparc xyz 1.0 00000000"})
+	c.Check(toStrSlice(mergeBC), DeepEquals,
+		[]string{"Pall data 1.1~bp1 00000000", "Pamd64 app 1.1~bp2 00000000", "Pi386 app 1.1~bp2 00000044", "Pi386 dpkg 1.0 00034445", "Pi386 lib 1.0 00000000"})
+	c.Check(toStrSlice(mergeCB), DeepEquals,
+		[]string{"Pall data 1.1~bp1 00000000", "Pamd64 app 1.1~bp2 00000000", "Pi386 app 1.1~bp2 00000000", "Pi386 dpkg 1.0 00000000", "Pi386 lib 1.0 00000000"})
 
 	mergeABall := reflistA.Merge(reflistB, false)
 	mergeBAall := reflistB.Merge(reflistA, false)
+	mergeACall := reflistA.Merge(reflistC, false)
+	mergeBCall := reflistB.Merge(reflistC, false)
+	mergeCBall := reflistC.Merge(reflistB, false)
 
 	c.Check(mergeABall, DeepEquals, mergeBAall)
 	c.Check(toStrSlice(mergeBAall), DeepEquals,
-		[]string{"Pall data 1.1~bp1", "Pamd64 app 1.1~bp2", "Pi386 app 1.1~bp1", "Pi386 app 1.1~bp2", "Pi386 dpkg 1.0", "Pi386 dpkg 1.7", "Pi386 lib 1.0", "Psparc xyz 1.0"})
+		[]string{"Pall data 1.1~bp1 00000000", "Pamd64 app 1.1~bp2 00000000", "Pi386 app 1.1~bp1 00000000", "Pi386 app 1.1~bp2 00000000",
+			"Pi386 dpkg 1.0 00000000", "Pi386 dpkg 1.7 00000000", "Pi386 lib 1.0 00000000", "Psparc xyz 1.0 00000000"})
+
+	c.Check(mergeBCall, Not(DeepEquals), mergeCBall)
+	c.Check(toStrSlice(mergeACall), DeepEquals,
+		[]string{"Pall data 1.1~bp1 00000000", "Pi386 app 1.1~bp1 00000000", "Pi386 app 1.1~bp2 00000044", "Pi386 dpkg 1.0 00034445",
+			"Pi386 dpkg 1.7 00000000", "Pi386 lib 1.0 00000000", "Psparc xyz 1.0 00000000"})
+	c.Check(toStrSlice(mergeBCall), DeepEquals,
+		[]string{"Pall data 1.1~bp1 00000000", "Pamd64 app 1.1~bp2 00000000", "Pi386 app 1.1~bp2 00000044", "Pi386 dpkg 1.0 00034445",
+			"Pi386 lib 1.0 00000000"})
 }
 
 func (s *PackageRefListSuite) TestFilterLatestRefs(c *C) {
 	packages := []*Package{
-		&Package{Name: "lib", Version: "1.0", Architecture: "i386"},
-		&Package{Name: "lib", Version: "1.2~bp1", Architecture: "i386"},
-		&Package{Name: "lib", Version: "1.2", Architecture: "i386"},
-		&Package{Name: "dpkg", Version: "1.2", Architecture: "i386"},
-		&Package{Name: "dpkg", Version: "1.3", Architecture: "i386"},
-		&Package{Name: "dpkg", Version: "1.3~bp2", Architecture: "i386"},
-		&Package{Name: "dpkg", Version: "1.5", Architecture: "i386"},
-		&Package{Name: "dpkg", Version: "1.6", Architecture: "i386"},
+		{Name: "lib", Version: "1.0", Architecture: "i386"},
+		{Name: "lib", Version: "1.2~bp1", Architecture: "i386"},
+		{Name: "lib", Version: "1.2", Architecture: "i386"},
+		{Name: "dpkg", Version: "1.2", Architecture: "i386"},
+		{Name: "dpkg", Version: "1.3", Architecture: "i386"},
+		{Name: "dpkg", Version: "1.3~bp2", Architecture: "i386"},
+		{Name: "dpkg", Version: "1.5", Architecture: "i386"},
+		{Name: "dpkg", Version: "1.6", Architecture: "i386"},
 	}
 
 	rl := NewPackageList()
@@ -297,7 +341,7 @@ func (s *PackageRefListSuite) TestFilterLatestRefs(c *C) {
 	rl.Add(packages[7])
 
 	result := NewPackageRefListFromPackageList(rl)
-	FilterLatestRefs(result)
+	result.FilterLatestRefs()
 
 	c.Check(toStrSlice(result), DeepEquals,
 		[]string{"Pi386 dpkg 1.6", "Pi386 lib 1.2"})

deb/remote.go

@@ -14,11 +14,20 @@ import (
 	"os"
 	"path"
 	"path/filepath"
+	"sort"
 	"strconv"
 	"strings"
+	"sync"
+	"syscall"
 	"time"
 )
 
+// RemoteRepo statuses
+const (
+	MirrorIdle = iota
+	MirrorUpdating
+)
+
 // RemoteRepo represents remote (fetchable) Debian repository.
 //
 // Repostitory could be filtered when fetching by components, architectures
@@ -37,6 +46,8 @@ type RemoteRepo struct {
 	Architectures []string
 	// Should we download sources?
 	DownloadSources bool
+	// Should we download .udebs?
+	DownloadUdebs bool
 	// Meta-information about repository
 	Meta Stanza
 	// Last update date
@@ -47,15 +58,25 @@ type RemoteRepo struct {
 	Filter string
 	// FilterWithDeps to include dependencies from filter query
 	FilterWithDeps bool
+	// SkipComponentCheck skips component list verification
+	SkipComponentCheck bool
+	// Status marks state of repository (being updated, no action)
+	Status int
+	// WorkerPID is PID of the process modifying the mirror (if any)
+	WorkerPID int
 	// "Snapshot" of current list of packages
 	packageRefs *PackageRefList
+	// Temporary list of package refs
+	tempPackageRefs *PackageRefList
 	// Parsed archived root
 	archiveRootURL *url.URL
+	// Current list of packages (filled while updating mirror)
+	packageList *PackageList
 }
 
 // NewRemoteRepo creates new instance of Debian remote repository with specified params
 func NewRemoteRepo(name string, archiveRoot string, distribution string, components []string,
-	architectures []string, downloadSources bool) (*RemoteRepo, error) {
+	architectures []string, downloadSources bool, downloadUdebs bool) (*RemoteRepo, error) {
 	result := &RemoteRepo{
 		UUID:            uuid.New(),
 		Name:            name,
@@ -64,6 +85,7 @@ func NewRemoteRepo(name string, archiveRoot string, distribution string, compone
 		Components:      components,
 		Architectures:   architectures,
 		DownloadSources: downloadSources,
+		DownloadUdebs:   downloadUdebs,
 	}
 
 	err := result.prepare()
@@ -80,6 +102,9 @@ func NewRemoteRepo(name string, archiveRoot string, distribution string, compone
 		if len(result.Components) > 0 {
 			return nil, fmt.Errorf("components aren't supported for flat repos")
 		}
+		if result.DownloadUdebs {
+			return nil, fmt.Errorf("debian-installer udebs aren't supported for flat repos")
+		}
 		result.Components = nil
 	}
 
@@ -102,7 +127,10 @@ func (repo *RemoteRepo) prepare() error {
 func (repo *RemoteRepo) String() string {
 	srcFlag := ""
 	if repo.DownloadSources {
-		srcFlag = " [src]"
+		srcFlag += " [src]"
+	}
+	if repo.DownloadUdebs {
+		srcFlag += " [udeb]"
 	}
 	distribution := repo.Distribution
 	if distribution == "" {
@@ -131,6 +159,37 @@ func (repo *RemoteRepo) RefList() *PackageRefList {
 	return repo.packageRefs
 }
 
+// MarkAsUpdating puts current PID and sets status to updating
+func (repo *RemoteRepo) MarkAsUpdating() {
+	repo.Status = MirrorUpdating
+	repo.WorkerPID = os.Getpid()
+}
+
+// MarkAsIdle clears updating flag
+func (repo *RemoteRepo) MarkAsIdle() {
+	repo.Status = MirrorIdle
+	repo.WorkerPID = 0
+}
+
+// CheckLock returns error if mirror is being updated by another process
+func (repo *RemoteRepo) CheckLock() error {
+	if repo.Status == MirrorIdle || repo.WorkerPID == 0 {
+		return nil
+	}
+
+	p, err := os.FindProcess(repo.WorkerPID)
+	if err != nil {
+		return nil
+	}
+
+	err = p.Signal(syscall.Signal(0))
+	if err == nil {
+		return fmt.Errorf("mirror is locked by update operation, PID %d", repo.WorkerPID)
+	}
+
+	return nil
+}
+
 // ReleaseURL returns URL to Release* files in repo root
 func (repo *RemoteRepo) ReleaseURL(name string) *url.URL {
 	var path *url.URL
@@ -169,6 +228,13 @@ func (repo *RemoteRepo) SourcesURL(component string) *url.URL {
 	return repo.archiveRootURL.ResolveReference(path)
 }
 
+// UdebURL returns URL of Packages files for given component and
+// architecture
+func (repo *RemoteRepo) UdebURL(component string, architecture string) *url.URL {
+	path := &url.URL{Path: fmt.Sprintf("dists/%s/%s/debian-installer/binary-%s/Packages", repo.Distribution, component, architecture)}
+	return repo.archiveRootURL.ResolveReference(path)
+}
+
 // PackageURL returns URL of package file relative to repository root
 // architecture
 func (repo *RemoteRepo) PackageURL(filename string) *url.URL {
@@ -245,6 +311,9 @@ ok:
 
 	if !repo.IsFlat() {
 		architectures := strings.Split(stanza["Architectures"], " ")
+		sort.Strings(architectures)
+		// "source" architecture is never present, despite Release file claims
+		architectures = utils.StrSlicesSubstract(architectures, []string{"source"})
 		if len(repo.Architectures) == 0 {
 			repo.Architectures = architectures
 		} else {
@@ -256,14 +325,19 @@ ok:
 		}
 
 		components := strings.Split(stanza["Components"], " ")
-		for i := range components {
-			components[i] = path.Base(components[i])
+		if strings.Contains(repo.Distribution, "/") {
+			distributionLast := path.Base(repo.Distribution) + "/"
+			for i := range components {
+				if strings.HasPrefix(components[i], distributionLast) {
+					components[i] = components[i][len(distributionLast):]
+				}
+			}
 		}
 		if len(repo.Components) == 0 {
 			repo.Components = components
-		} else {
+		} else if !repo.SkipComponentCheck {
 			err = utils.StringsIsSubset(repo.Components, components,
-				fmt.Sprintf("component %%s not available in repo %s", repo))
+				fmt.Sprintf("component %%s not available in repo %s, use -force-components to override", repo))
 			if err != nil {
 				return err
 			}
@@ -318,17 +392,20 @@ ok:
 		return err
 	}
 
+	delete(stanza, "SHA512")
+
 	repo.Meta = stanza
 
 	return nil
 }
 
-// Download downloads all repo files
-func (repo *RemoteRepo) Download(progress aptly.Progress, d aptly.Downloader, collectionFactory *CollectionFactory,
-	packagePool aptly.PackagePool, ignoreMismatch bool, dependencyOptions int, filterQuery PackageQuery) error {
-	list := NewPackageList()
-
-	progress.Printf("Downloading & parsing package files...\n")
+// DownloadPackageIndexes downloads & parses package index files
+func (repo *RemoteRepo) DownloadPackageIndexes(progress aptly.Progress, d aptly.Downloader, collectionFactory *CollectionFactory,
+	ignoreMismatch bool) error {
+	if repo.packageList != nil {
+		panic("packageList != nil")
+	}
+	repo.packageList = NewPackageList()
 
 	// Download and parse all Packages & Source files
 	packagesURLs := [][]string{}
@@ -342,6 +419,9 @@ func (repo *RemoteRepo) Download(progress aptly.Progress, d aptly.Downloader, co
 		for _, component := range repo.Components {
 			for _, architecture := range repo.Architectures {
 				packagesURLs = append(packagesURLs, []string{repo.BinaryURL(component, architecture).String(), "binary"})
+				if repo.DownloadUdebs {
+					packagesURLs = append(packagesURLs, []string{repo.UdebURL(component, architecture).String(), "udeb"})
+				}
 			}
 			if repo.DownloadSources {
 				packagesURLs = append(packagesURLs, []string{repo.SourcesURL(component).String(), "source"})
@@ -378,15 +458,21 @@ func (repo *RemoteRepo) Download(progress aptly.Progress, d aptly.Downloader, co
 
 			if kind == "binary" {
 				p = NewPackageFromControlFile(stanza)
+			} else if kind == "udeb" {
+				p = NewUdebPackageFromControlFile(stanza)
 			} else if kind == "source" {
 				p, err = NewSourcePackageFromControlFile(stanza)
 				if err != nil {
 					return err
 				}
 			}
-			err = list.Add(p)
+			err = repo.packageList.Add(p)
 			if err != nil {
-				return err
+				if _, ok := err.(*PackageConflictError); ok {
+					progress.ColoredPrintf("@y[!]@| @!skipping package %s: duplicate in packages index@|", p)
+				} else {
+					return err
+				}
 			}
 
 			err = collectionFactory.PackageCollection().Update(p)
@@ -398,33 +484,30 @@ func (repo *RemoteRepo) Download(progress aptly.Progress, d aptly.Downloader, co
 		progress.ShutdownBar()
 	}
 
-	var err error
+	return nil
+}
 
-	if repo.Filter != "" {
-		progress.Printf("Applying filter...\n")
+// ApplyFilter applies filtering to already built PackageList
+func (repo *RemoteRepo) ApplyFilter(dependencyOptions int, filterQuery PackageQuery) (oldLen, newLen int, err error) {
+	repo.packageList.PrepareIndex()
 
-		list.PrepareIndex()
+	emptyList := NewPackageList()
+	emptyList.PrepareIndex()
 
-		emptyList := NewPackageList()
-		emptyList.PrepareIndex()
-
-		origPackages := list.Len()
-		list, err = list.Filter([]PackageQuery{filterQuery}, repo.FilterWithDeps, emptyList, dependencyOptions, repo.Architectures)
-		if err != nil {
-			return err
-		}
-
-		progress.Printf("Packages filtered: %d -> %d.\n", origPackages, list.Len())
+	oldLen = repo.packageList.Len()
+	repo.packageList, err = repo.packageList.Filter([]PackageQuery{filterQuery}, repo.FilterWithDeps, emptyList, dependencyOptions, repo.Architectures)
+	if repo.packageList != nil {
+		newLen = repo.packageList.Len()
 	}
+	return
+}
 
-	progress.Printf("Building download queue...\n")
+// BuildDownloadQueue builds queue, discards current PackageList
+func (repo *RemoteRepo) BuildDownloadQueue(packagePool aptly.PackagePool) (queue []PackageDownloadTask, downloadSize int64, err error) {
+	queue = make([]PackageDownloadTask, 0, repo.packageList.Len())
+	seen := make(map[string]struct{}, repo.packageList.Len())
 
-	// Build download queue
-	queued := make(map[string]PackageDownloadTask, list.Len())
-	count := 0
-	downloadSize := int64(0)
-
-	err = list.ForEach(func(p *Package) error {
+	err = repo.packageList.ForEach(func(p *Package) error {
 		list, err2 := p.DownloadList(packagePool)
 		if err2 != nil {
 			return err2
@@ -433,58 +516,31 @@ func (repo *RemoteRepo) Download(progress aptly.Progress, d aptly.Downloader, co
 
 		for _, task := range list {
 			key := task.RepoURI + "-" + task.DestinationPath
-			_, found := queued[key]
+			_, found := seen[key]
 			if !found {
-				count++
+				queue = append(queue, task)
 				downloadSize += task.Checksums.Size
-				queued[key] = task
+				seen[key] = struct{}{}
 			}
 		}
 
 		return nil
 	})
 	if err != nil {
-		return fmt.Errorf("unable to build download queue: %s", err)
+		return
 	}
 
-	repo.packageRefs = NewPackageRefListFromPackageList(list)
+	repo.tempPackageRefs = NewPackageRefListFromPackageList(repo.packageList)
 	// free up package list, we don't need it after this point
-	list = nil
+	repo.packageList = nil
 
-	progress.Printf("Download queue: %d items (%s)\n", count, utils.HumanBytes(downloadSize))
-
-	progress.InitBar(downloadSize, true)
-
-	// Download all package files
-	ch := make(chan error, len(queued))
-
-	for _, task := range queued {
-		d.DownloadWithChecksum(repo.PackageURL(task.RepoURI).String(), task.DestinationPath, ch, task.Checksums, ignoreMismatch)
-	}
-
-	// We don't need queued after this point
-	queued = nil
-
-	// Wait for all downloads to finish
-	errors := make([]string, 0)
-
-	for count > 0 {
-		err = <-ch
-		if err != nil {
-			errors = append(errors, err.Error())
-		}
-		count--
-	}
-
-	progress.ShutdownBar()
-
-	if len(errors) > 0 {
-		return fmt.Errorf("download errors:\n  %s\n", strings.Join(errors, "\n  "))
-	}
+	return
+}
 
+// FinalizeDownload swaps for final value of package refs
+func (repo *RemoteRepo) FinalizeDownload() {
 	repo.LastDownloadDate = time.Now()
-
-	return nil
+	repo.packageRefs = repo.tempPackageRefs
 }
 
 // Encode does msgpack encoding of RemoteRepo
@@ -502,7 +558,43 @@ func (repo *RemoteRepo) Decode(input []byte) error {
 	decoder := codec.NewDecoderBytes(input, &codec.MsgpackHandle{})
 	err := decoder.Decode(repo)
 	if err != nil {
-		return err
+		if strings.HasPrefix(err.Error(), "codec.decoder: readContainerLen: Unrecognized descriptor byte: hex: 80") {
+			// probably it is broken DB from go < 1.2, try decoding w/o time.Time
+			var repo11 struct {
+				UUID             string
+				Name             string
+				ArchiveRoot      string
+				Distribution     string
+				Components       []string
+				Architectures    []string
+				DownloadSources  bool
+				Meta             Stanza
+				LastDownloadDate []byte
+				ReleaseFiles     map[string]utils.ChecksumInfo
+				Filter           string
+				FilterWithDeps   bool
+			}
+
+			decoder = codec.NewDecoderBytes(input, &codec.MsgpackHandle{})
+			err2 := decoder.Decode(&repo11)
+			if err2 != nil {
+				return err
+			}
+
+			repo.UUID = repo11.UUID
+			repo.Name = repo11.Name
+			repo.ArchiveRoot = repo11.ArchiveRoot
+			repo.Distribution = repo11.Distribution
+			repo.Components = repo11.Components
+			repo.Architectures = repo11.Architectures
+			repo.DownloadSources = repo11.DownloadSources
+			repo.Meta = repo11.Meta
+			repo.ReleaseFiles = repo11.ReleaseFiles
+			repo.Filter = repo11.Filter
+			repo.FilterWithDeps = repo11.FilterWithDeps
+		} else {
+			return err
+		}
 	}
 	return repo.prepare()
 }
@@ -519,6 +611,7 @@ func (repo *RemoteRepo) RefKey() []byte {
 
 // RemoteRepoCollection does listing, updating/adding/deleting of RemoteRepos
 type RemoteRepoCollection struct {
+	*sync.RWMutex
 	db   database.Storage
 	list []*RemoteRepo
 }
@@ -526,7 +619,8 @@ type RemoteRepoCollection struct {
 // NewRemoteRepoCollection loads RemoteRepos from DB and makes up collection
 func NewRemoteRepoCollection(db database.Storage) *RemoteRepoCollection {
 	result := &RemoteRepoCollection{
-		db: db,
+		RWMutex: &sync.RWMutex{},
+		db:      db,
 	}
 
 	blobs := db.FetchByPrefix([]byte("R"))

deb/remote_test.go

@@ -10,8 +10,10 @@ import (
 	"github.com/smira/aptly/utils"
 	"io"
 	"io/ioutil"
-	. "launchpad.net/gocheck"
 	"os"
+	"sort"
+
+	. "gopkg.in/check.v1"
 )
 
 type NullVerifier struct {
@@ -79,8 +81,8 @@ type RemoteRepoSuite struct {
 var _ = Suite(&RemoteRepoSuite{})
 
 func (s *RemoteRepoSuite) SetUpTest(c *C) {
-	s.repo, _ = NewRemoteRepo("yandex", "http://mirror.yandex.ru/debian", "squeeze", []string{"main"}, []string{}, false)
-	s.flat, _ = NewRemoteRepo("exp42", "http://repos.express42.com/virool/precise/", "./", []string{}, []string{}, false)
+	s.repo, _ = NewRemoteRepo("yandex", "http://mirror.yandex.ru/debian", "squeeze", []string{"main"}, []string{}, false, false)
+	s.flat, _ = NewRemoteRepo("exp42", "http://repos.express42.com/virool/precise/", "./", []string{}, []string{}, false, false)
 	s.downloader = http.NewFakeDownloader().ExpectResponse("http://mirror.yandex.ru/debian/dists/squeeze/Release", exampleReleaseFile)
 	s.progress = console.NewProgress()
 	s.db, _ = database.OpenDB(c.MkDir())
@@ -96,7 +98,7 @@ func (s *RemoteRepoSuite) TearDownTest(c *C) {
 }
 
 func (s *RemoteRepoSuite) TestInvalidURL(c *C) {
-	_, err := NewRemoteRepo("s", "http://lolo%2", "squeeze", []string{"main"}, []string{}, false)
+	_, err := NewRemoteRepo("s", "http://lolo%2", "squeeze", []string{"main"}, []string{}, false, false)
 	c.Assert(err, ErrorMatches, ".*hexadecimal escape in host.*")
 }
 
@@ -106,11 +108,11 @@ func (s *RemoteRepoSuite) TestFlatCreation(c *C) {
 	c.Check(s.flat.Architectures, IsNil)
 	c.Check(s.flat.Components, IsNil)
 
-	flat2, _ := NewRemoteRepo("flat2", "http://pkg.jenkins-ci.org/debian-stable", "binary/", []string{}, []string{}, false)
+	flat2, _ := NewRemoteRepo("flat2", "http://pkg.jenkins-ci.org/debian-stable", "binary/", []string{}, []string{}, false, false)
 	c.Check(flat2.IsFlat(), Equals, true)
 	c.Check(flat2.Distribution, Equals, "./binary/")
 
-	_, err := NewRemoteRepo("fl", "http://some.repo/", "./", []string{"main"}, []string{}, false)
+	_, err := NewRemoteRepo("fl", "http://some.repo/", "./", []string{"main"}, []string{}, false, false)
 	c.Check(err, ErrorMatches, "components aren't supported for flat repos")
 }
 
@@ -119,8 +121,9 @@ func (s *RemoteRepoSuite) TestString(c *C) {
 	c.Check(s.flat.String(), Equals, "[exp42]: http://repos.express42.com/virool/precise/ ./")
 
 	s.repo.DownloadSources = true
+	s.repo.DownloadUdebs = true
 	s.flat.DownloadSources = true
-	c.Check(s.repo.String(), Equals, "[yandex]: http://mirror.yandex.ru/debian/ squeeze [src]")
+	c.Check(s.repo.String(), Equals, "[yandex]: http://mirror.yandex.ru/debian/ squeeze [src] [udeb]")
 	c.Check(s.flat.String(), Equals, "[exp42]: http://repos.express42.com/virool/precise/ ./ [src]")
 }
 
@@ -151,6 +154,10 @@ func (s *RemoteRepoSuite) TestBinaryURL(c *C) {
 	c.Assert(s.repo.BinaryURL("main", "amd64").String(), Equals, "http://mirror.yandex.ru/debian/dists/squeeze/main/binary-amd64/Packages")
 }
 
+func (s *RemoteRepoSuite) TestUdebURL(c *C) {
+	c.Assert(s.repo.UdebURL("main", "amd64").String(), Equals, "http://mirror.yandex.ru/debian/dists/squeeze/main/debian-installer/binary-amd64/Packages")
+}
+
 func (s *RemoteRepoSuite) TestSourcesURL(c *C) {
 	c.Assert(s.repo.SourcesURL("main").String(), Equals, "http://mirror.yandex.ru/debian/dists/squeeze/main/source/Sources")
 }
@@ -186,7 +193,7 @@ func (s *RemoteRepoSuite) TestFetch(c *C) {
 
 func (s *RemoteRepoSuite) TestFetchNullVerifier1(c *C) {
 	downloader := http.NewFakeDownloader()
-	downloader.ExpectError("http://mirror.yandex.ru/debian/dists/squeeze/InRelease", errors.New("404"))
+	downloader.ExpectError("http://mirror.yandex.ru/debian/dists/squeeze/InRelease", &http.HTTPError{Code: 404})
 	downloader.ExpectResponse("http://mirror.yandex.ru/debian/dists/squeeze/Release", exampleReleaseFile)
 	downloader.ExpectResponse("http://mirror.yandex.ru/debian/dists/squeeze/Release.gpg", "GPG")
 
@@ -209,13 +216,13 @@ func (s *RemoteRepoSuite) TestFetchNullVerifier2(c *C) {
 }
 
 func (s *RemoteRepoSuite) TestFetchWrongArchitecture(c *C) {
-	s.repo, _ = NewRemoteRepo("s", "http://mirror.yandex.ru/debian/", "squeeze", []string{"main"}, []string{"xyz"}, false)
+	s.repo, _ = NewRemoteRepo("s", "http://mirror.yandex.ru/debian/", "squeeze", []string{"main"}, []string{"xyz"}, false, false)
 	err := s.repo.Fetch(s.downloader, nil)
 	c.Assert(err, ErrorMatches, "architecture xyz not available in repo.*")
 }
 
 func (s *RemoteRepoSuite) TestFetchWrongComponent(c *C) {
-	s.repo, _ = NewRemoteRepo("s", "http://mirror.yandex.ru/debian/", "squeeze", []string{"xyz"}, []string{"i386"}, false)
+	s.repo, _ = NewRemoteRepo("s", "http://mirror.yandex.ru/debian/", "squeeze", []string{"xyz"}, []string{"i386"}, false, false)
 	err := s.repo.Fetch(s.downloader, nil)
 	c.Assert(err, ErrorMatches, "component xyz not available in repo.*")
 }
@@ -246,23 +253,25 @@ func (s *RemoteRepoSuite) TestDownload(c *C) {
 	err := s.repo.Fetch(s.downloader, nil)
 	c.Assert(err, IsNil)
 
-	s.downloader.ExpectError("http://mirror.yandex.ru/debian/dists/squeeze/main/binary-i386/Packages.bz2", errors.New("HTTP 404"))
-	s.downloader.ExpectError("http://mirror.yandex.ru/debian/dists/squeeze/main/binary-i386/Packages.gz", errors.New("HTTP 404"))
+	s.downloader.ExpectError("http://mirror.yandex.ru/debian/dists/squeeze/main/binary-i386/Packages.bz2", &http.HTTPError{Code: 404})
+	s.downloader.ExpectError("http://mirror.yandex.ru/debian/dists/squeeze/main/binary-i386/Packages.gz", &http.HTTPError{Code: 404})
 	s.downloader.ExpectResponse("http://mirror.yandex.ru/debian/dists/squeeze/main/binary-i386/Packages", examplePackagesFile)
-	s.downloader.ExpectResponse("http://mirror.yandex.ru/debian/pool/main/a/amanda/amanda-client_3.3.1-3~bpo60+1_amd64.deb", "xyz")
 
-	err = s.repo.Download(s.progress, s.downloader, s.collectionFactory, s.packagePool, false, 0, nil)
+	err = s.repo.DownloadPackageIndexes(s.progress, s.downloader, s.collectionFactory, false)
 	c.Assert(err, IsNil)
 	c.Assert(s.downloader.Empty(), Equals, true)
+
+	queue, size, err := s.repo.BuildDownloadQueue(s.packagePool)
+	c.Check(size, Equals, int64(3))
+	c.Check(queue, HasLen, 1)
+	c.Check(queue[0].RepoURI, Equals, "pool/main/a/amanda/amanda-client_3.3.1-3~bpo60+1_amd64.deb")
+
+	s.repo.FinalizeDownload()
 	c.Assert(s.repo.packageRefs, NotNil)
 
 	pkg, err := s.collectionFactory.PackageCollection().ByKey(s.repo.packageRefs.Refs[0])
 	c.Assert(err, IsNil)
 
-	result, err := pkg.VerifyFiles(s.packagePool)
-	c.Check(result, Equals, true)
-	c.Check(err, IsNil)
-
 	c.Check(pkg.Name, Equals, "amanda-client")
 }
 
@@ -273,64 +282,69 @@ func (s *RemoteRepoSuite) TestDownloadWithSources(c *C) {
 	err := s.repo.Fetch(s.downloader, nil)
 	c.Assert(err, IsNil)
 
-	s.downloader.ExpectError("http://mirror.yandex.ru/debian/dists/squeeze/main/binary-i386/Packages.bz2", errors.New("HTTP 404"))
-	s.downloader.ExpectError("http://mirror.yandex.ru/debian/dists/squeeze/main/binary-i386/Packages.gz", errors.New("HTTP 404"))
+	s.downloader.ExpectError("http://mirror.yandex.ru/debian/dists/squeeze/main/binary-i386/Packages.bz2", &http.HTTPError{Code: 404})
+	s.downloader.ExpectError("http://mirror.yandex.ru/debian/dists/squeeze/main/binary-i386/Packages.gz", &http.HTTPError{Code: 404})
 	s.downloader.ExpectResponse("http://mirror.yandex.ru/debian/dists/squeeze/main/binary-i386/Packages", examplePackagesFile)
-	s.downloader.ExpectError("http://mirror.yandex.ru/debian/dists/squeeze/main/source/Sources.bz2", errors.New("HTTP 404"))
-	s.downloader.ExpectError("http://mirror.yandex.ru/debian/dists/squeeze/main/source/Sources.gz", errors.New("HTTP 404"))
+	s.downloader.ExpectError("http://mirror.yandex.ru/debian/dists/squeeze/main/source/Sources.bz2", &http.HTTPError{Code: 404})
+	s.downloader.ExpectError("http://mirror.yandex.ru/debian/dists/squeeze/main/source/Sources.gz", &http.HTTPError{Code: 404})
 	s.downloader.ExpectResponse("http://mirror.yandex.ru/debian/dists/squeeze/main/source/Sources", exampleSourcesFile)
-	s.downloader.AnyExpectResponse("http://mirror.yandex.ru/debian/pool/main/a/amanda/amanda-client_3.3.1-3~bpo60+1_amd64.deb", "xyz")
-	s.downloader.AnyExpectResponse("http://mirror.yandex.ru/debian/pool/main/a/access-modifier-checker/access-modifier-checker_1.0-4.dsc", "abc")
-	s.downloader.AnyExpectResponse("http://mirror.yandex.ru/debian/pool/main/a/access-modifier-checker/access-modifier-checker_1.0.orig.tar.gz", "abcd")
-	s.downloader.AnyExpectResponse("http://mirror.yandex.ru/debian/pool/main/a/access-modifier-checker/access-modifier-checker_1.0-4.debian.tar.gz", "abcde")
 
-	err = s.repo.Download(s.progress, s.downloader, s.collectionFactory, s.packagePool, false, 0, nil)
+	err = s.repo.DownloadPackageIndexes(s.progress, s.downloader, s.collectionFactory, false)
 	c.Assert(err, IsNil)
 	c.Assert(s.downloader.Empty(), Equals, true)
+
+	queue, size, err := s.repo.BuildDownloadQueue(s.packagePool)
+	c.Check(size, Equals, int64(15))
+	c.Check(queue, HasLen, 4)
+
+	q := make([]string, 4)
+	for i := range q {
+		q[i] = queue[i].RepoURI
+	}
+	sort.Strings(q)
+	c.Check(q[3], Equals, "pool/main/a/amanda/amanda-client_3.3.1-3~bpo60+1_amd64.deb")
+	c.Check(q[1], Equals, "pool/main/a/access-modifier-checker/access-modifier-checker_1.0-4.dsc")
+	c.Check(q[2], Equals, "pool/main/a/access-modifier-checker/access-modifier-checker_1.0.orig.tar.gz")
+	c.Check(q[0], Equals, "pool/main/a/access-modifier-checker/access-modifier-checker_1.0-4.debian.tar.gz")
+
+	s.repo.FinalizeDownload()
 	c.Assert(s.repo.packageRefs, NotNil)
 
 	pkg, err := s.collectionFactory.PackageCollection().ByKey(s.repo.packageRefs.Refs[0])
 	c.Assert(err, IsNil)
 
-	result, err := pkg.VerifyFiles(s.packagePool)
-	c.Check(result, Equals, true)
-	c.Check(err, IsNil)
-
 	c.Check(pkg.Name, Equals, "amanda-client")
 
 	pkg, err = s.collectionFactory.PackageCollection().ByKey(s.repo.packageRefs.Refs[1])
 	c.Assert(err, IsNil)
-
-	result, err = pkg.VerifyFiles(s.packagePool)
-	c.Check(result, Equals, true)
-	c.Check(err, IsNil)
-
 	c.Check(pkg.Name, Equals, "access-modifier-checker")
 }
 
 func (s *RemoteRepoSuite) TestDownloadFlat(c *C) {
 	downloader := http.NewFakeDownloader()
 	downloader.ExpectResponse("http://repos.express42.com/virool/precise/Release", exampleReleaseFile)
-	downloader.ExpectError("http://repos.express42.com/virool/precise/Packages.bz2", errors.New("HTTP 404"))
-	downloader.ExpectError("http://repos.express42.com/virool/precise/Packages.gz", errors.New("HTTP 404"))
+	downloader.ExpectError("http://repos.express42.com/virool/precise/Packages.bz2", &http.HTTPError{Code: 404})
+	downloader.ExpectError("http://repos.express42.com/virool/precise/Packages.gz", &http.HTTPError{Code: 404})
 	downloader.ExpectResponse("http://repos.express42.com/virool/precise/Packages", examplePackagesFile)
-	downloader.ExpectResponse("http://repos.express42.com/virool/precise/pool/main/a/amanda/amanda-client_3.3.1-3~bpo60+1_amd64.deb", "xyz")
 
 	err := s.flat.Fetch(downloader, nil)
 	c.Assert(err, IsNil)
 
-	err = s.flat.Download(s.progress, downloader, s.collectionFactory, s.packagePool, false, 0, nil)
+	err = s.flat.DownloadPackageIndexes(s.progress, downloader, s.collectionFactory, false)
 	c.Assert(err, IsNil)
 	c.Assert(downloader.Empty(), Equals, true)
+
+	queue, size, err := s.flat.BuildDownloadQueue(s.packagePool)
+	c.Check(size, Equals, int64(3))
+	c.Check(queue, HasLen, 1)
+	c.Check(queue[0].RepoURI, Equals, "pool/main/a/amanda/amanda-client_3.3.1-3~bpo60+1_amd64.deb")
+
+	s.flat.FinalizeDownload()
 	c.Assert(s.flat.packageRefs, NotNil)
 
 	pkg, err := s.collectionFactory.PackageCollection().ByKey(s.flat.packageRefs.Refs[0])
 	c.Assert(err, IsNil)
 
-	result, err := pkg.VerifyFiles(s.packagePool)
-	c.Check(result, Equals, true)
-	c.Check(err, IsNil)
-
 	c.Check(pkg.Name, Equals, "amanda-client")
 }
 
@@ -339,41 +353,45 @@ func (s *RemoteRepoSuite) TestDownloadWithSourcesFlat(c *C) {
 
 	downloader := http.NewFakeDownloader()
 	downloader.ExpectResponse("http://repos.express42.com/virool/precise/Release", exampleReleaseFile)
-	downloader.ExpectError("http://repos.express42.com/virool/precise/Packages.bz2", errors.New("HTTP 404"))
-	downloader.ExpectError("http://repos.express42.com/virool/precise/Packages.gz", errors.New("HTTP 404"))
+	downloader.ExpectError("http://repos.express42.com/virool/precise/Packages.bz2", &http.HTTPError{Code: 404})
+	downloader.ExpectError("http://repos.express42.com/virool/precise/Packages.gz", &http.HTTPError{Code: 404})
 	downloader.ExpectResponse("http://repos.express42.com/virool/precise/Packages", examplePackagesFile)
-	downloader.ExpectError("http://repos.express42.com/virool/precise/Sources.bz2", errors.New("HTTP 404"))
-	downloader.ExpectError("http://repos.express42.com/virool/precise/Sources.gz", errors.New("HTTP 404"))
+	downloader.ExpectError("http://repos.express42.com/virool/precise/Sources.bz2", &http.HTTPError{Code: 404})
+	downloader.ExpectError("http://repos.express42.com/virool/precise/Sources.gz", &http.HTTPError{Code: 404})
 	downloader.ExpectResponse("http://repos.express42.com/virool/precise/Sources", exampleSourcesFile)
-	downloader.AnyExpectResponse("http://repos.express42.com/virool/precise/pool/main/a/amanda/amanda-client_3.3.1-3~bpo60+1_amd64.deb", "xyz")
-	downloader.AnyExpectResponse("http://repos.express42.com/virool/precise/pool/main/a/access-modifier-checker/access-modifier-checker_1.0-4.dsc", "abc")
-	downloader.AnyExpectResponse("http://repos.express42.com/virool/precise/pool/main/a/access-modifier-checker/access-modifier-checker_1.0.orig.tar.gz", "abcd")
-	downloader.AnyExpectResponse("http://repos.express42.com/virool/precise/pool/main/a/access-modifier-checker/access-modifier-checker_1.0-4.debian.tar.gz", "abcde")
 
 	err := s.flat.Fetch(downloader, nil)
 	c.Assert(err, IsNil)
 
-	err = s.flat.Download(s.progress, downloader, s.collectionFactory, s.packagePool, false, 0, nil)
+	err = s.flat.DownloadPackageIndexes(s.progress, downloader, s.collectionFactory, false)
 	c.Assert(err, IsNil)
 	c.Assert(downloader.Empty(), Equals, true)
+
+	queue, size, err := s.flat.BuildDownloadQueue(s.packagePool)
+	c.Check(size, Equals, int64(15))
+	c.Check(queue, HasLen, 4)
+
+	q := make([]string, 4)
+	for i := range q {
+		q[i] = queue[i].RepoURI
+	}
+	sort.Strings(q)
+	c.Check(q[3], Equals, "pool/main/a/amanda/amanda-client_3.3.1-3~bpo60+1_amd64.deb")
+	c.Check(q[1], Equals, "pool/main/a/access-modifier-checker/access-modifier-checker_1.0-4.dsc")
+	c.Check(q[2], Equals, "pool/main/a/access-modifier-checker/access-modifier-checker_1.0.orig.tar.gz")
+	c.Check(q[0], Equals, "pool/main/a/access-modifier-checker/access-modifier-checker_1.0-4.debian.tar.gz")
+
+	s.flat.FinalizeDownload()
 	c.Assert(s.flat.packageRefs, NotNil)
 
 	pkg, err := s.collectionFactory.PackageCollection().ByKey(s.flat.packageRefs.Refs[0])
 	c.Assert(err, IsNil)
 
-	result, err := pkg.VerifyFiles(s.packagePool)
-	c.Check(result, Equals, true)
-	c.Check(err, IsNil)
-
 	c.Check(pkg.Name, Equals, "amanda-client")
 
 	pkg, err = s.collectionFactory.PackageCollection().ByKey(s.flat.packageRefs.Refs[1])
 	c.Assert(err, IsNil)
 
-	result, err = pkg.VerifyFiles(s.packagePool)
-	c.Check(result, Equals, true)
-	c.Check(err, IsNil)
-
 	c.Check(pkg.Name, Equals, "access-modifier-checker")
 }
 
@@ -399,7 +417,7 @@ func (s *RemoteRepoCollectionSuite) TestAddByName(c *C) {
 	r, err := s.collection.ByName("yandex")
 	c.Assert(err, ErrorMatches, "*.not found")
 
-	repo, _ := NewRemoteRepo("yandex", "http://mirror.yandex.ru/debian/", "squeeze", []string{"main"}, []string{}, false)
+	repo, _ := NewRemoteRepo("yandex", "http://mirror.yandex.ru/debian/", "squeeze", []string{"main"}, []string{}, false, false)
 	c.Assert(s.collection.Add(repo), IsNil)
 	c.Assert(s.collection.Add(repo), ErrorMatches, ".*already exists")
 
@@ -417,7 +435,7 @@ func (s *RemoteRepoCollectionSuite) TestByUUID(c *C) {
 	r, err := s.collection.ByUUID("some-uuid")
 	c.Assert(err, ErrorMatches, "*.not found")
 
-	repo, _ := NewRemoteRepo("yandex", "http://mirror.yandex.ru/debian/", "squeeze", []string{"main"}, []string{}, false)
+	repo, _ := NewRemoteRepo("yandex", "http://mirror.yandex.ru/debian/", "squeeze", []string{"main"}, []string{}, false, false)
 	c.Assert(s.collection.Add(repo), IsNil)
 
 	r, err = s.collection.ByUUID(repo.UUID)
@@ -426,7 +444,7 @@ func (s *RemoteRepoCollectionSuite) TestByUUID(c *C) {
 }
 
 func (s *RemoteRepoCollectionSuite) TestUpdateLoadComplete(c *C) {
-	repo, _ := NewRemoteRepo("yandex", "http://mirror.yandex.ru/debian/", "squeeze", []string{"main"}, []string{}, false)
+	repo, _ := NewRemoteRepo("yandex", "http://mirror.yandex.ru/debian/", "squeeze", []string{"main"}, []string{}, false, false)
 	c.Assert(s.collection.Update(repo), IsNil)
 
 	collection := NewRemoteRepoCollection(s.db)
@@ -447,7 +465,7 @@ func (s *RemoteRepoCollectionSuite) TestUpdateLoadComplete(c *C) {
 }
 
 func (s *RemoteRepoCollectionSuite) TestForEachAndLen(c *C) {
-	repo, _ := NewRemoteRepo("yandex", "http://mirror.yandex.ru/debian/", "squeeze", []string{"main"}, []string{}, false)
+	repo, _ := NewRemoteRepo("yandex", "http://mirror.yandex.ru/debian/", "squeeze", []string{"main"}, []string{}, false, false)
 	s.collection.Add(repo)
 
 	count := 0
@@ -469,10 +487,10 @@ func (s *RemoteRepoCollectionSuite) TestForEachAndLen(c *C) {
 }
 
 func (s *RemoteRepoCollectionSuite) TestDrop(c *C) {
-	repo1, _ := NewRemoteRepo("yandex", "http://mirror.yandex.ru/debian/", "squeeze", []string{"main"}, []string{}, false)
+	repo1, _ := NewRemoteRepo("yandex", "http://mirror.yandex.ru/debian/", "squeeze", []string{"main"}, []string{}, false, false)
 	s.collection.Add(repo1)
 
-	repo2, _ := NewRemoteRepo("tyndex", "http://mirror.yandex.ru/debian/", "wheezy", []string{"main"}, []string{}, false)
+	repo2, _ := NewRemoteRepo("tyndex", "http://mirror.yandex.ru/debian/", "wheezy", []string{"main"}, []string{}, false, false)
 	s.collection.Add(repo2)
 
 	r1, _ := s.collection.ByUUID(repo1.UUID)

deb/snapshot.go

@@ -9,21 +9,24 @@ import (
 	"github.com/smira/aptly/utils"
 	"github.com/ugorji/go/codec"
 	"log"
+	"sort"
+	"strings"
+	"sync"
 	"time"
 )
 
 // Snapshot is immutable state of repository: list of packages
 type Snapshot struct {
 	// Persisten internal ID
-	UUID string
+	UUID string `json:"-"`
 	// Human-readable name
 	Name string
 	// Date of creation
 	CreatedAt time.Time
 
 	// Source: kind + ID
-	SourceKind string
-	SourceIDs  []string
+	SourceKind string   `json:"-"`
+	SourceIDs  []string `json:"-"`
 	// Description of how snapshot was created
 	Description string
 
@@ -125,11 +128,41 @@ func (s *Snapshot) Encode() []byte {
 // Decode decodes msgpack representation into Snapshot
 func (s *Snapshot) Decode(input []byte) error {
 	decoder := codec.NewDecoderBytes(input, &codec.MsgpackHandle{})
-	return decoder.Decode(s)
+	err := decoder.Decode(s)
+	if err != nil {
+		if strings.HasPrefix(err.Error(), "codec.decoder: readContainerLen: Unrecognized descriptor byte: hex: 80") {
+			// probably it is broken DB from go < 1.2, try decoding w/o time.Time
+			var snapshot11 struct {
+				UUID      string
+				Name      string
+				CreatedAt []byte
+
+				SourceKind  string
+				SourceIDs   []string
+				Description string
+			}
+
+			decoder = codec.NewDecoderBytes(input, &codec.MsgpackHandle{})
+			err2 := decoder.Decode(&snapshot11)
+			if err2 != nil {
+				return err
+			}
+
+			s.UUID = snapshot11.UUID
+			s.Name = snapshot11.Name
+			s.SourceKind = snapshot11.SourceKind
+			s.SourceIDs = snapshot11.SourceIDs
+			s.Description = snapshot11.Description
+		} else {
+			return err
+		}
+	}
+	return nil
 }
 
 // SnapshotCollection does listing, updating/adding/deleting of Snapshots
 type SnapshotCollection struct {
+	*sync.RWMutex
 	db   database.Storage
 	list []*Snapshot
 }
@@ -137,7 +170,8 @@ type SnapshotCollection struct {
 // NewSnapshotCollection loads Snapshots from DB and makes up collection
 func NewSnapshotCollection(db database.Storage) *SnapshotCollection {
 	result := &SnapshotCollection{
-		db: db,
+		RWMutex: &sync.RWMutex{},
+		db:      db,
 	}
 
 	blobs := db.FetchByPrefix([]byte("S"))
@@ -263,6 +297,23 @@ func (collection *SnapshotCollection) ForEach(handler func(*Snapshot) error) err
 	return err
 }
 
+// ForEachSorted runs method for each snapshot following some sort order
+func (collection *SnapshotCollection) ForEachSorted(sortMethod string, handler func(*Snapshot) error) error {
+	sorter, err := newSnapshotSorter(sortMethod, collection)
+	if err != nil {
+		return err
+	}
+
+	for _, i := range sorter.list {
+		err = handler(collection.list[i])
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
 // Len returns number of snapshots in collection
 // ForEach runs method for each snapshot
 func (collection *SnapshotCollection) Len() int {
@@ -294,3 +345,55 @@ func (collection *SnapshotCollection) Drop(snapshot *Snapshot) error {
 
 	return collection.db.Delete(snapshot.RefKey())
 }
+
+// Snapshot sorting methods
+const (
+	SortName = iota
+	SortTime
+)
+
+type snapshotSorter struct {
+	list       []int
+	collection *SnapshotCollection
+	sortMethod int
+}
+
+func newSnapshotSorter(sortMethod string, collection *SnapshotCollection) (*snapshotSorter, error) {
+	s := &snapshotSorter{collection: collection}
+
+	switch sortMethod {
+	case "time", "Time":
+		s.sortMethod = SortTime
+	case "name", "Name":
+		s.sortMethod = SortName
+	default:
+		return nil, fmt.Errorf("sorting method \"%s\" unknown", sortMethod)
+	}
+
+	s.list = make([]int, len(collection.list))
+	for i := range s.list {
+		s.list[i] = i
+	}
+
+	sort.Sort(s)
+
+	return s, nil
+}
+
+func (s *snapshotSorter) Swap(i, j int) {
+	s.list[i], s.list[j] = s.list[j], s.list[i]
+}
+
+func (s *snapshotSorter) Less(i, j int) bool {
+	switch s.sortMethod {
+	case SortName:
+		return s.collection.list[s.list[i]].Name < s.collection.list[s.list[j]].Name
+	case SortTime:
+		return s.collection.list[s.list[i]].CreatedAt.Before(s.collection.list[s.list[j]].CreatedAt)
+	}
+	panic("unknown sort method")
+}
+
+func (s *snapshotSorter) Len() int {
+	return len(s.list)
+}