publish: lock all distributions with MultiDist

snapshots come in 3 kinds: local, remote and snapshot

find resources to be locked for each kind, recursively for the snapshot kind

.github/workflows/ci.yml

@@ -155,7 +155,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        name: ["Debian 13/trixie", "Debian 12/bookworm", "Debian 11/bullseye", "Ubuntu 26.04", "Ubuntu 24.04", "Ubuntu 22.04", "Ubuntu 20.04"]
+        name: ["Debian 13/trixie", "Debian 12/bookworm", "Debian 11/bullseye", "Ubuntu 24.04", "Ubuntu 22.04", "Ubuntu 20.04"]
         arch: ["amd64", "i386" , "arm64" , "armhf"]
         include:
           - name: "Debian 13/trixie"
@@ -167,9 +167,6 @@ jobs:
           - name: "Debian 11/bullseye"
             suite: bullseye
             image: debian:bullseye-slim
-          - name: "Ubuntu 26.04"
-            suite: resolute
-            image: ubuntu:26.04
           - name: "Ubuntu 24.04"
             suite: noble
             image: ubuntu:24.04

CONTRIBUTING.md

@@ -16,7 +16,7 @@ Please report unacceptable behavior on [https://github.com/aptly-dev/aptly/discu
 ### List of Repositories
 
 * [aptly-dev/aptly](https://github.com/aptly-dev/aptly) - aptly source code, functional tests, man page
-* [aptly-dev/aptly-dev.github.io](https://github.com/aptly-dev/aptly-dev.github.io) - aptly website (https://www.aptly.info/)
+* [apty-dev/aptly-dev.github.io](https://github.com/aptly-dev/aptly-dev.github.io) - aptly website (https://www.aptly.info/)
 * [aptly-dev/aptly-fixture-db](https://github.com/aptly-dev/aptly-fixture-db) & [aptly-dev/aptly-fixture-pool](https://github.com/aptly-dev/aptly-fixture-pool) provide
   fixtures for aptly functional tests
 
@@ -137,7 +137,7 @@ make docker-unit-tests
 
 In order to run aptly system tests, enter the following:
 ```
-make docker-system-test
+make docker-system-tests
 ```
 
 #### Running golangci-lint

Makefile

@@ -241,4 +241,4 @@ clean:  ## remove local build and module cache
 	rm -f unit.out aptly.test VERSION docs/docs.go docs/swagger.json docs/swagger.yaml docs/swagger.conf
 	find system/ -type d -name __pycache__ -exec rm -rf {} \; 2>/dev/null || true
 
-.PHONY: help man prepare swagger version binaries build docker-release docker-system-test docker-unit-test docker-lint docker-build docker-image docker-man docker-shell docker-serve clean releasetype dpkg serve flake8
+.PHONY: help man prepare swagger version binaries build docker-release docker-system-tests docker-unit-test docker-lint docker-build docker-image docker-man docker-shell docker-serve clean releasetype dpkg serve flake8

api/gpg.go

@@ -54,7 +54,7 @@ type gpgDeleteKeyParams struct {
 // @Summary Add GPG Keys
 // @Description **Adds GPG keys to aptly keyring**
 // @Description
-// @Description Add GPG public keys for verifying remote repositories for mirroring.
+// @Description Add GPG public keys for veryfing remote repositories for mirroring.
 // @Description
 // @Description Keys can be added in two ways:
 // @Description * By providing the ASCII armord key in `GpgKeyArmor` (leave Keyserver and GpgKeyID empty)

api/mirror.go

@@ -497,7 +497,7 @@ func apiMirrorsEdit(c *gin.Context) {
 type mirrorUpdateParams struct {
 	// Change mirror name to `Name`
 	Name string `                 json:"Name"                   example:"mirror1"`
-	// Gpg keyring(s) for verifying Release file
+	// Gpg keyring(s) for verifing Release file
 	Keyrings []string `           json:"Keyrings"               example:"trustedkeys.gpg"`
 	// Set "true" to ignore checksum errors
 	IgnoreChecksums bool `        json:"IgnoreChecksums"`

api/publish.go

@@ -2,7 +2,6 @@ package api
 
 import (
 	"fmt"
-	"log"
 	"net/http"
 	"strings"
 
@@ -125,7 +124,7 @@ func apiPublishList(c *gin.Context) {
 // @Description See also: `aptly publish show`
 // @Tags Publish
 // @Produce json
-// @Param prefix path string true "publishing prefix, use `:.` instead of `.` because it is ambiguous in URLs"
+// @Param prefix path string true "publishing prefix, use `:.` instead of `.` because it is ambigious in URLs"
 // @Param distribution path string true "distribution name"
 // @Success 200 {object} deb.PublishedRepo
 // @Failure 404 {object} Error "Published repository not found"
@@ -256,13 +255,13 @@ func apiPublishRepoOrSnapshot(c *gin.Context) {
 	if b.SourceKind == deb.SourceSnapshot {
 		var snapshot *deb.Snapshot
 
-		snapshotCollection := collectionFactory.SnapshotCollection()
+		tmpCollection := collectionFactory.SnapshotCollection()
 
 		for _, source := range b.Sources {
 			components = append(components, source.Component)
 			names = append(names, source.Name)
 
-			snapshot, err = snapshotCollection.ByName(source.Name)
+			snapshot, err = tmpCollection.ByName(source.Name)
 			if err != nil {
 				AbortWithJSONError(c, http.StatusNotFound, fmt.Errorf("unable to publish: %s", err))
 				return
@@ -274,13 +273,13 @@ func apiPublishRepoOrSnapshot(c *gin.Context) {
 	} else if b.SourceKind == deb.SourceLocalRepo {
 		var localRepo *deb.LocalRepo
 
-		localCollection := collectionFactory.LocalRepoCollection()
+		tmpCollection := collectionFactory.LocalRepoCollection()
 
 		for _, source := range b.Sources {
 			components = append(components, source.Component)
 			names = append(names, source.Name)
 
-			localRepo, err = localCollection.ByName(source.Name)
+			localRepo, err = tmpCollection.ByName(source.Name)
 			if err != nil {
 				AbortWithJSONError(c, http.StatusNotFound, fmt.Errorf("unable to publish: %s", err))
 				return
@@ -299,25 +298,11 @@ func apiPublishRepoOrSnapshot(c *gin.Context) {
 		multiDist = *b.MultiDist
 	}
 
-	// Pre-register the published repo key in resources so that concurrent
-	// POST requests for the same prefix/distribution are serialized by the
-	// task queue rather than racing on CheckDuplicate + Add.
-	if b.Distribution != "" {
-		storagePrefix := prefix
-		if storage != "" {
-			storagePrefix = storage + ":" + prefix
-		}
-		resources = append(resources, "U"+storagePrefix+">>"+b.Distribution)
-	} else {
-		log.Printf("distribution not specified for publish to prefix '%s' - unable to lock ", prefix)
-	}
+	collection := collectionFactory.PublishedRepoCollection()
 
 	taskName := fmt.Sprintf("Publish %s repository %s/%s with components \"%s\" and sources \"%s\"",
 		b.SourceKind, param, b.Distribution, strings.Join(components, `", "`), strings.Join(names, `", "`))
 	maybeRunTaskInBackground(c, taskName, resources, func(out aptly.Progress, detail *task.Detail) (*task.ProcessReturnValue, error) {
-		taskCollectionFactory := context.NewCollectionFactory()
-		taskCollection := taskCollectionFactory.PublishedRepoCollection()
-
 		taskDetail := task.PublishDetail{
 			Detail: detail,
 		}
@@ -329,10 +314,10 @@ func apiPublishRepoOrSnapshot(c *gin.Context) {
 		for _, source := range sources {
 			switch s := source.(type) {
 			case *deb.Snapshot:
-				snapshotCollection := taskCollectionFactory.SnapshotCollection()
+				snapshotCollection := collectionFactory.SnapshotCollection()
 				err = snapshotCollection.LoadComplete(s)
 			case *deb.LocalRepo:
-				localCollection := taskCollectionFactory.LocalRepoCollection()
+				localCollection := collectionFactory.LocalRepoCollection()
 				err = localCollection.LoadComplete(s)
 			default:
 				err = fmt.Errorf("unexpected type for source: %T", source)
@@ -342,7 +327,7 @@ func apiPublishRepoOrSnapshot(c *gin.Context) {
 			}
 		}
 
-		published, err := deb.NewPublishedRepo(storage, prefix, b.Distribution, b.Architectures, components, sources, taskCollectionFactory, multiDist)
+		published, err := deb.NewPublishedRepo(storage, prefix, b.Distribution, b.Architectures, components, sources, collectionFactory, multiDist)
 		if err != nil {
 			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to publish: %s", err)
 		}
@@ -380,18 +365,18 @@ func apiPublishRepoOrSnapshot(c *gin.Context) {
 			published.Version = b.Version
 		}
 
-		duplicate := taskCollection.CheckDuplicate(published)
+		duplicate := collection.CheckDuplicate(published)
 		if duplicate != nil {
-			_ = taskCollectionFactory.PublishedRepoCollection().LoadComplete(duplicate, taskCollectionFactory)
+			_ = collectionFactory.PublishedRepoCollection().LoadComplete(duplicate, collectionFactory)
 			return &task.ProcessReturnValue{Code: http.StatusBadRequest, Value: nil}, fmt.Errorf("prefix/distribution already used by another published repo: %s", duplicate)
 		}
 
-		err = published.Publish(context.PackagePool(), context, taskCollectionFactory, signer, publishOutput, b.ForceOverwrite, context.SkelPath())
+		err = published.Publish(context.PackagePool(), context, collectionFactory, signer, publishOutput, b.ForceOverwrite, context.SkelPath())
 		if err != nil {
 			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to publish: %s", err)
 		}
 
-		err = taskCollection.Add(published)
+		err = collection.Add(published)
 		if err != nil {
 			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to save to DB: %s", err)
 		}
@@ -400,6 +385,46 @@ func apiPublishRepoOrSnapshot(c *gin.Context) {
 	})
 }
 
+// Return resources to be locked for a Snapshot name
+func getSnapshotResources(snapshotCollection *deb.SnapshotCollection, snapshotName string) (resources []string, err error) {
+	snapshot, err := snapshotCollection.ByName(snapshotName)
+	if err != nil {
+		return
+	}
+	resources = append(resources, string(snapshot.ResourceKey()))
+
+	for _, sourceID := range snapshot.SourceIDs {
+		if snapshot.SourceKind == deb.SourceSnapshot {
+			snapshot2, err2 := snapshotCollection.ByUUID(sourceID)
+			if err2 != nil {
+				err = err2
+				return
+			}
+			res, err3 := getSnapshotResources(snapshotCollection, snapshot2.Name)
+			if err3 != nil {
+				err = err3
+				return
+			}
+			resources = append(resources, res...)
+		} else if snapshot.SourceKind == deb.SourceLocalRepo {
+			var repo *deb.LocalRepo
+			repo, err = context.NewCollectionFactory().LocalRepoCollection().ByUUID(sourceID)
+			if err != nil {
+				return
+			}
+			resources = append(resources, string(repo.Key()))
+		} else if snapshot.SourceKind == deb.SourceRemoteRepo {
+			var mirror *deb.RemoteRepo
+			mirror, err = context.NewCollectionFactory().RemoteRepoCollection().ByUUID(sourceID)
+			if err != nil {
+				return
+			}
+			resources = append(resources, string(mirror.Key()))
+		}
+	}
+	return
+}
+
 type publishedRepoUpdateSwitchParams struct {
 	// when publishing, overwrite files in pool/ directory without notice
 	ForceOverwrite bool `                         json:"ForceOverwrite" example:"false"`
@@ -419,12 +444,12 @@ type publishedRepoUpdateSwitchParams struct {
 	SignedBy *string `                            json:"SignedBy"  example:""`
 	// Enable multiple packages with the same filename in different distributions
 	MultiDist *bool `                             json:"MultiDist"      example:"false"`
-    // Value of Label: field in published repository stanza
-    Label *string `                               json:"Label"          example:"Debian"`
-    // Value of Origin: field in published repository stanza
-    Origin *string `                              json:"Origin"         example:"Debian"`
-    // Version of the release: Optional
-    Version *string `                             json:"Version"        example:"13.3"`
+	// Value of Label: field in published repository stanza
+	Label *string `                               json:"Label"          example:"Debian"`
+	// Value of Origin: field in published repository stanza
+	Origin *string `                              json:"Origin"         example:"Debian"`
+	// Version of the release: Optional
+	Version *string `                             json:"Version"        example:"13.3"`
 }
 
 // @Summary Update Published Repository
@@ -471,7 +496,6 @@ func apiPublishUpdateSwitch(c *gin.Context) {
 	collectionFactory := context.NewCollectionFactory()
 	collection := collectionFactory.PublishedRepoCollection()
 	snapshotCollection := collectionFactory.SnapshotCollection()
-	localRepoCollection := collectionFactory.LocalRepoCollection()
 
 	published, err := collection.ByStoragePrefixDistribution(storage, prefix, distribution)
 	if err != nil {
@@ -486,71 +510,69 @@ func apiPublishUpdateSwitch(c *gin.Context) {
 			AbortWithJSONError(c, http.StatusBadRequest, fmt.Errorf("snapshots shouldn't be given when updating local repo"))
 			return
 		}
-		for _, uuid := range published.Sources {
-			repo, err2 := localRepoCollection.ByUUID(uuid)
+
+		localCollection := collectionFactory.LocalRepoCollection()
+		for _, sourceID := range published.Sources {
+			localRepo, err2 := localCollection.ByUUID(sourceID)
 			if err2 != nil {
 				AbortWithJSONError(c, http.StatusNotFound, err2)
 				return
 			}
-			resources = append(resources, string(repo.Key()))
+			resources = append(resources, string(localRepo.Key()))
 		}
 	} else if published.SourceKind == deb.SourceSnapshot {
 		for _, snapshotInfo := range b.Snapshots {
-			snapshot, err2 := snapshotCollection.ByName(snapshotInfo.Name)
+			res, err2 := getSnapshotResources(snapshotCollection, snapshotInfo.Name)
 			if err2 != nil {
 				AbortWithJSONError(c, http.StatusNotFound, err2)
 				return
 			}
-			resources = append(resources, string(snapshot.ResourceKey()))
+			resources = append(resources, res...)
 		}
 	} else {
 		AbortWithJSONError(c, http.StatusInternalServerError, fmt.Errorf("unknown published repository type"))
 		return
 	}
 
-	// Field mutations and fresh DB load are deferred to inside the task so
-	// they always operate on a consistent state after the lock is held.
+	if b.SkipContents != nil {
+		published.SkipContents = *b.SkipContents
+	}
+
+	if b.SkipBz2 != nil {
+		published.SkipBz2 = *b.SkipBz2
+	}
+
+	if b.AcquireByHash != nil {
+		published.AcquireByHash = *b.AcquireByHash
+	}
+
+	if b.SignedBy != nil {
+		published.SignedBy = *b.SignedBy
+	}
+
+	if b.MultiDist != nil {
+		published.MultiDist = *b.MultiDist
+	}
+
+	if b.Label != nil {
+		published.Label = *b.Label
+	}
+
+	if b.Origin != nil {
+		published.Origin = *b.Origin
+	}
+
+	if b.Version != nil {
+		published.Version = *b.Version
+	}
+
 	taskName := fmt.Sprintf("Update published %s repository %s/%s", published.SourceKind, published.StoragePrefix(), published.Distribution)
 	maybeRunTaskInBackground(c, taskName, resources, func(out aptly.Progress, _ *task.Detail) (*task.ProcessReturnValue, error) {
-		taskCollectionFactory := context.NewCollectionFactory()
-		taskCollection := taskCollectionFactory.PublishedRepoCollection()
-
-		published, err := taskCollection.ByStoragePrefixDistribution(storage, prefix, distribution)
+		err = collection.LoadComplete(published, collectionFactory)
 		if err != nil {
 			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to update: %s", err)
 		}
 
-		err = taskCollection.LoadComplete(published, taskCollectionFactory)
-		if err != nil {
-			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to update: %s", err)
-		}
-
-		// Apply field mutations on the freshly loaded object.
-		if b.SkipContents != nil {
-			published.SkipContents = *b.SkipContents
-		}
-		if b.SkipBz2 != nil {
-			published.SkipBz2 = *b.SkipBz2
-		}
-		if b.AcquireByHash != nil {
-			published.AcquireByHash = *b.AcquireByHash
-		}
-		if b.SignedBy != nil {
-			published.SignedBy = *b.SignedBy
-		}
-		if b.MultiDist != nil {
-			published.MultiDist = *b.MultiDist
-		}
-		if b.Label != nil {
-			published.Label = *b.Label
-		}
-		if b.Origin != nil {
-			published.Origin = *b.Origin
-		}
-		if b.Version != nil {
-			published.Version = *b.Version
-		}
-
 		revision := published.ObtainRevision()
 		sources := revision.Sources
 
@@ -562,17 +584,17 @@ func apiPublishUpdateSwitch(c *gin.Context) {
 			}
 		}
 
-		result, err := published.Update(taskCollectionFactory, out)
+		result, err := published.Update(collectionFactory, out)
 		if err != nil {
 			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to update: %s", err)
 		}
 
-		err = published.Publish(context.PackagePool(), context, taskCollectionFactory, signer, out, b.ForceOverwrite, context.SkelPath())
+		err = published.Publish(context.PackagePool(), context, collectionFactory, signer, out, b.ForceOverwrite, context.SkelPath())
 		if err != nil {
 			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to update: %s", err)
 		}
 
-		err = taskCollection.Update(published)
+		err = collection.Update(published)
 		if err != nil {
 			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to save to DB: %s", err)
 		}
@@ -580,7 +602,7 @@ func apiPublishUpdateSwitch(c *gin.Context) {
 		if b.SkipCleanup == nil || !*b.SkipCleanup {
 			cleanComponents := make([]string, 0, len(result.UpdatedSources)+len(result.RemovedSources))
 			cleanComponents = append(append(cleanComponents, result.UpdatedComponents()...), result.RemovedComponents()...)
-			err = taskCollection.CleanupPrefixComponentFiles(context, published, cleanComponents, taskCollectionFactory, out)
+			err = collection.CleanupPrefixComponentFiles(context, published, cleanComponents, collectionFactory, out)
 			if err != nil {
 				return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to update: %s", err)
 			}
@@ -630,11 +652,8 @@ func apiPublishDrop(c *gin.Context) {
 	resources := []string{string(published.Key())}
 	taskName := fmt.Sprintf("Delete published %s repository %s/%s", published.SourceKind, published.StoragePrefix(), published.Distribution)
 	maybeRunTaskInBackground(c, taskName, resources, func(out aptly.Progress, _ *task.Detail) (*task.ProcessReturnValue, error) {
-		taskCollectionFactory := context.NewCollectionFactory()
-		taskCollection := taskCollectionFactory.PublishedRepoCollection()
-
-		err := taskCollection.Remove(context, storage, prefix, distribution,
-			taskCollectionFactory, out, force, skipCleanup)
+		err := collection.Remove(context, storage, prefix, distribution,
+			collectionFactory, out, force, skipCleanup)
 		if err != nil {
 			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to drop: %s", err)
 		}
@@ -670,52 +689,43 @@ func apiPublishAddSource(c *gin.Context) {
 	storage, prefix := deb.ParsePrefix(param)
 	distribution := slashEscape(c.Params.ByName("distribution"))
 
-	if c.Bind(&b) != nil {
-		return
-	}
-
 	collectionFactory := context.NewCollectionFactory()
 	collection := collectionFactory.PublishedRepoCollection()
 
-	// Load shallowly (no LoadComplete) to verify existence and obtain the
-	// resource key and task name.  The actual mutation is performed inside
-	// the task on a freshly loaded copy to prevent lost-update races.
 	published, err := collection.ByStoragePrefixDistribution(storage, prefix, distribution)
 	if err != nil {
 		AbortWithJSONError(c, http.StatusNotFound, fmt.Errorf("unable to create: %s", err))
 		return
 	}
 
+	err = collection.LoadComplete(published, collectionFactory)
+	if err != nil {
+		AbortWithJSONError(c, http.StatusInternalServerError, fmt.Errorf("unable to create: %s", err))
+		return
+	}
+
+	if c.Bind(&b) != nil {
+		return
+	}
+
+	revision := published.ObtainRevision()
+	sources := revision.Sources
+
+	component := b.Component
+	name := b.Name
+
+	_, exists := sources[component]
+	if exists {
+		AbortWithJSONError(c, http.StatusBadRequest, fmt.Errorf("unable to create: Component '%s' already exists", component))
+		return
+	}
+
+	sources[component] = name
+
 	resources := []string{string(published.Key())}
 	taskName := fmt.Sprintf("Update published %s repository %s/%s", published.SourceKind, published.StoragePrefix(), published.Distribution)
 	maybeRunTaskInBackground(c, taskName, resources, func(_ aptly.Progress, _ *task.Detail) (*task.ProcessReturnValue, error) {
-		taskCollectionFactory := context.NewCollectionFactory()
-		taskCollection := taskCollectionFactory.PublishedRepoCollection()
-
-		published, err := taskCollection.ByStoragePrefixDistribution(storage, prefix, distribution)
-		if err != nil {
-			return &task.ProcessReturnValue{Code: http.StatusNotFound, Value: nil}, fmt.Errorf("unable to create: %s", err)
-		}
-
-		err = taskCollection.LoadComplete(published, taskCollectionFactory)
-		if err != nil {
-			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to create: %s", err)
-		}
-
-		revision := published.ObtainRevision()
-		sources := revision.Sources
-
-		component := b.Component
-		name := b.Name
-
-		_, exists := sources[component]
-		if exists {
-			return &task.ProcessReturnValue{Code: http.StatusBadRequest, Value: nil}, fmt.Errorf("unable to create: Component '%s' already exists", component)
-		}
-
-		sources[component] = name
-
-		err = taskCollection.Update(published)
+		err = collection.Update(published)
 		if err != nil {
 			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to save to DB: %s", err)
 		}
@@ -797,48 +807,39 @@ func apiPublishSetSources(c *gin.Context) {
 	storage, prefix := deb.ParsePrefix(param)
 	distribution := slashEscape(c.Params.ByName("distribution"))
 
-	if c.Bind(&b) != nil {
-		return
-	}
-
 	collectionFactory := context.NewCollectionFactory()
 	collection := collectionFactory.PublishedRepoCollection()
 
-	// Load shallowly for 404 check, resource key, and task name.
-	// Full load and mutation happen inside the task.
 	published, err := collection.ByStoragePrefixDistribution(storage, prefix, distribution)
 	if err != nil {
 		AbortWithJSONError(c, http.StatusNotFound, fmt.Errorf("unable to update: %s", err))
 		return
 	}
 
+	err = collection.LoadComplete(published, collectionFactory)
+	if err != nil {
+		AbortWithJSONError(c, http.StatusInternalServerError, fmt.Errorf("unable to update: %s", err))
+		return
+	}
+
+	if c.Bind(&b) != nil {
+		return
+	}
+
+	revision := published.ObtainRevision()
+	sources := make(map[string]string, len(b))
+	revision.Sources = sources
+
+	for _, source := range b {
+		component := source.Component
+		name := source.Name
+		sources[component] = name
+	}
+
 	resources := []string{string(published.Key())}
 	taskName := fmt.Sprintf("Update published %s repository %s/%s", published.SourceKind, published.StoragePrefix(), published.Distribution)
 	maybeRunTaskInBackground(c, taskName, resources, func(_ aptly.Progress, _ *task.Detail) (*task.ProcessReturnValue, error) {
-		taskCollectionFactory := context.NewCollectionFactory()
-		taskCollection := taskCollectionFactory.PublishedRepoCollection()
-
-		published, err := taskCollection.ByStoragePrefixDistribution(storage, prefix, distribution)
-		if err != nil {
-			return &task.ProcessReturnValue{Code: http.StatusNotFound, Value: nil}, fmt.Errorf("unable to update: %s", err)
-		}
-
-		err = taskCollection.LoadComplete(published, taskCollectionFactory)
-		if err != nil {
-			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to update: %s", err)
-		}
-
-		revision := published.ObtainRevision()
-		sources := make(map[string]string, len(b))
-		revision.Sources = sources
-
-		for _, source := range b {
-			component := source.Component
-			name := source.Name
-			sources[component] = name
-		}
-
-		err = taskCollection.Update(published)
+		err = collection.Update(published)
 		if err != nil {
 			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to save to DB: %s", err)
 		}
@@ -871,33 +872,24 @@ func apiPublishDropChanges(c *gin.Context) {
 	collectionFactory := context.NewCollectionFactory()
 	collection := collectionFactory.PublishedRepoCollection()
 
-	// Load shallowly for 404 check, resource key, and task name.
-	// Full load and DropRevision happen inside the task.
 	published, err := collection.ByStoragePrefixDistribution(storage, prefix, distribution)
 	if err != nil {
 		AbortWithJSONError(c, http.StatusNotFound, fmt.Errorf("unable to delete: %s", err))
 		return
 	}
 
+	err = collection.LoadComplete(published, collectionFactory)
+	if err != nil {
+		AbortWithJSONError(c, http.StatusInternalServerError, fmt.Errorf("unable to delete: %s", err))
+		return
+	}
+
+	published.DropRevision()
+
 	resources := []string{string(published.Key())}
 	taskName := fmt.Sprintf("Update published %s repository %s/%s", published.SourceKind, published.StoragePrefix(), published.Distribution)
 	maybeRunTaskInBackground(c, taskName, resources, func(_ aptly.Progress, _ *task.Detail) (*task.ProcessReturnValue, error) {
-		taskCollectionFactory := context.NewCollectionFactory()
-		taskCollection := taskCollectionFactory.PublishedRepoCollection()
-
-		published, err := taskCollection.ByStoragePrefixDistribution(storage, prefix, distribution)
-		if err != nil {
-			return &task.ProcessReturnValue{Code: http.StatusNotFound, Value: nil}, fmt.Errorf("unable to delete: %s", err)
-		}
-
-		err = taskCollection.LoadComplete(published, taskCollectionFactory)
-		if err != nil {
-			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to delete: %s", err)
-		}
-
-		published.DropRevision()
-
-		err = taskCollection.Update(published)
+		err = collection.Update(published)
 		if err != nil {
 			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to save to DB: %s", err)
 		}
@@ -933,58 +925,51 @@ func apiPublishUpdateSource(c *gin.Context) {
 	param := slashEscape(c.Params.ByName("prefix"))
 	storage, prefix := deb.ParsePrefix(param)
 	distribution := slashEscape(c.Params.ByName("distribution"))
-	urlComponent := slashEscape(c.Params.ByName("component"))
-
-	// Default component to the URL path segment; the body may rename it.
-	b.Component = urlComponent
-	if c.Bind(&b) != nil {
-		return
-	}
+	component := slashEscape(c.Params.ByName("component"))
 
 	collectionFactory := context.NewCollectionFactory()
 	collection := collectionFactory.PublishedRepoCollection()
 
-	// Load shallowly for 404 check, resource key, and task name.
-	// Full load and mutation happen inside the task.
 	published, err := collection.ByStoragePrefixDistribution(storage, prefix, distribution)
 	if err != nil {
 		AbortWithJSONError(c, http.StatusNotFound, fmt.Errorf("unable to update: %s", err))
 		return
 	}
 
+	err = collection.LoadComplete(published, collectionFactory)
+	if err != nil {
+		AbortWithJSONError(c, http.StatusInternalServerError, fmt.Errorf("unable to update: %s", err))
+		return
+	}
+
+	revision := published.ObtainRevision()
+	sources := revision.Sources
+
+	_, exists := sources[component]
+	if !exists {
+		AbortWithJSONError(c, http.StatusNotFound, fmt.Errorf("unable to update: Component '%s' does not exist", component))
+		return
+	}
+
+	b.Component = component
+	b.Name = revision.Sources[component]
+
+	if c.Bind(&b) != nil {
+		return
+	}
+
+	if b.Component != component {
+		delete(sources, component)
+	}
+
+	component = b.Component
+	name := b.Name
+	sources[component] = name
+
 	resources := []string{string(published.Key())}
 	taskName := fmt.Sprintf("Update published %s repository %s/%s", published.SourceKind, published.StoragePrefix(), published.Distribution)
 	maybeRunTaskInBackground(c, taskName, resources, func(_ aptly.Progress, _ *task.Detail) (*task.ProcessReturnValue, error) {
-		taskCollectionFactory := context.NewCollectionFactory()
-		taskCollection := taskCollectionFactory.PublishedRepoCollection()
-
-		published, err := taskCollection.ByStoragePrefixDistribution(storage, prefix, distribution)
-		if err != nil {
-			return &task.ProcessReturnValue{Code: http.StatusNotFound, Value: nil}, fmt.Errorf("unable to update: %s", err)
-		}
-
-		err = taskCollection.LoadComplete(published, taskCollectionFactory)
-		if err != nil {
-			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to update: %s", err)
-		}
-
-		revision := published.ObtainRevision()
-		sources := revision.Sources
-
-		_, exists := sources[urlComponent]
-		if !exists {
-			return &task.ProcessReturnValue{Code: http.StatusNotFound, Value: nil}, fmt.Errorf("unable to update: Component '%s' does not exist", urlComponent)
-		}
-
-		if b.Component != urlComponent {
-			delete(sources, urlComponent)
-		}
-
-		newComponent := b.Component
-		name := b.Name
-		sources[newComponent] = name
-
-		err = taskCollection.Update(published)
+		err = collection.Update(published)
 		if err != nil {
 			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to save to DB: %s", err)
 		}
@@ -1021,41 +1006,33 @@ func apiPublishRemoveSource(c *gin.Context) {
 	collectionFactory := context.NewCollectionFactory()
 	collection := collectionFactory.PublishedRepoCollection()
 
-	// Load shallowly for 404 check, resource key, and task name.
-	// Full load and mutation happen inside the task.
 	published, err := collection.ByStoragePrefixDistribution(storage, prefix, distribution)
 	if err != nil {
 		AbortWithJSONError(c, http.StatusNotFound, fmt.Errorf("unable to delete: %s", err))
 		return
 	}
 
+	err = collection.LoadComplete(published, collectionFactory)
+	if err != nil {
+		AbortWithJSONError(c, http.StatusInternalServerError, fmt.Errorf("unable to delete: %s", err))
+		return
+	}
+
+	revision := published.ObtainRevision()
+	sources := revision.Sources
+
+	_, exists := sources[component]
+	if !exists {
+		AbortWithJSONError(c, http.StatusNotFound, fmt.Errorf("unable to delete: Component '%s' does not exist", component))
+		return
+	}
+
+	delete(sources, component)
+
 	resources := []string{string(published.Key())}
 	taskName := fmt.Sprintf("Update published %s repository %s/%s", published.SourceKind, published.StoragePrefix(), published.Distribution)
 	maybeRunTaskInBackground(c, taskName, resources, func(_ aptly.Progress, _ *task.Detail) (*task.ProcessReturnValue, error) {
-		taskCollectionFactory := context.NewCollectionFactory()
-		taskCollection := taskCollectionFactory.PublishedRepoCollection()
-
-		published, err := taskCollection.ByStoragePrefixDistribution(storage, prefix, distribution)
-		if err != nil {
-			return &task.ProcessReturnValue{Code: http.StatusNotFound, Value: nil}, fmt.Errorf("unable to delete: %s", err)
-		}
-
-		err = taskCollection.LoadComplete(published, taskCollectionFactory)
-		if err != nil {
-			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to delete: %s", err)
-		}
-
-		revision := published.ObtainRevision()
-		sources := revision.Sources
-
-		_, exists := sources[component]
-		if !exists {
-			return &task.ProcessReturnValue{Code: http.StatusNotFound, Value: nil}, fmt.Errorf("unable to delete: Component '%s' does not exist", component)
-		}
-
-		delete(sources, component)
-
-		err = taskCollection.Update(published)
+		err = collection.Update(published)
 		if err != nil {
 			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to save to DB: %s", err)
 		}
@@ -1127,94 +1104,64 @@ func apiPublishUpdate(c *gin.Context) {
 	collectionFactory := context.NewCollectionFactory()
 	collection := collectionFactory.PublishedRepoCollection()
 
-	// Load shallowly for 404 check, resource key, and task name.
-	// Full load and field mutations happen inside the task.
 	published, err := collection.ByStoragePrefixDistribution(storage, prefix, distribution)
 	if err != nil {
 		AbortWithJSONError(c, http.StatusNotFound, fmt.Errorf("unable to update: %s", err))
 		return
 	}
 
-	resources := []string{string(published.Key())}
-
-	// Lock source repos / snapshots the same way apiPublishUpdateSwitch does,
-	// because published.Update() reads from them and concurrent modification
-	// would produce an inconsistent view.
-	snapshotCollection := collectionFactory.SnapshotCollection()
-	localRepoCollection := collectionFactory.LocalRepoCollection()
-
-	if published.SourceKind == deb.SourceLocalRepo {
-		for _, uuid := range published.Sources {
-			repo, err2 := localRepoCollection.ByUUID(uuid)
-			if err2 != nil {
-				AbortWithJSONError(c, http.StatusNotFound, err2)
-				return
-			}
-			resources = append(resources, string(repo.Key()))
-		}
-	} else if published.SourceKind == deb.SourceSnapshot {
-		for _, uuid := range published.Sources {
-			snapshot, err2 := snapshotCollection.ByUUID(uuid)
-			if err2 != nil {
-				AbortWithJSONError(c, http.StatusNotFound, err2)
-				return
-			}
-			resources = append(resources, string(snapshot.ResourceKey()))
-		}
+	err = collection.LoadComplete(published, collectionFactory)
+	if err != nil {
+		AbortWithJSONError(c, http.StatusInternalServerError, fmt.Errorf("unable to update: %s", err))
+		return
 	}
 
+	if b.SkipContents != nil {
+		published.SkipContents = *b.SkipContents
+	}
+
+	if b.SkipBz2 != nil {
+		published.SkipBz2 = *b.SkipBz2
+	}
+
+	if b.AcquireByHash != nil {
+		published.AcquireByHash = *b.AcquireByHash
+	}
+
+	if b.SignedBy != nil {
+		published.SignedBy = *b.SignedBy
+	}
+
+	if b.MultiDist != nil {
+		published.MultiDist = *b.MultiDist
+	}
+
+	if b.Label != nil {
+		published.Label = *b.Label
+	}
+
+	if b.Origin != nil {
+		published.Origin = *b.Origin
+	}
+
+	if b.Version != nil {
+		published.Version = *b.Version
+	}
+
+	resources := []string{string(published.Key())}
 	taskName := fmt.Sprintf("Update published %s repository %s/%s", published.SourceKind, published.StoragePrefix(), published.Distribution)
 	maybeRunTaskInBackground(c, taskName, resources, func(out aptly.Progress, _ *task.Detail) (*task.ProcessReturnValue, error) {
-		taskCollectionFactory := context.NewCollectionFactory()
-		taskCollection := taskCollectionFactory.PublishedRepoCollection()
-
-		published, err := taskCollection.ByStoragePrefixDistribution(storage, prefix, distribution)
+		result, err := published.Update(collectionFactory, out)
 		if err != nil {
 			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to update: %s", err)
 		}
 
-		err = taskCollection.LoadComplete(published, taskCollectionFactory)
+		err = published.Publish(context.PackagePool(), context, collectionFactory, signer, out, b.ForceOverwrite, context.SkelPath())
 		if err != nil {
 			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to update: %s", err)
 		}
 
-		// Apply field mutations on the freshly loaded object.
-		if b.SkipContents != nil {
-			published.SkipContents = *b.SkipContents
-		}
-		if b.SkipBz2 != nil {
-			published.SkipBz2 = *b.SkipBz2
-		}
-		if b.AcquireByHash != nil {
-			published.AcquireByHash = *b.AcquireByHash
-		}
-		if b.SignedBy != nil {
-			published.SignedBy = *b.SignedBy
-		}
-		if b.MultiDist != nil {
-			published.MultiDist = *b.MultiDist
-		}
-		if b.Label != nil {
-			published.Label = *b.Label
-		}
-		if b.Origin != nil {
-			published.Origin = *b.Origin
-		}
-		if b.Version != nil {
-			published.Version = *b.Version
-		}
-
-		result, err := published.Update(taskCollectionFactory, out)
-		if err != nil {
-			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to update: %s", err)
-		}
-
-		err = published.Publish(context.PackagePool(), context, taskCollectionFactory, signer, out, b.ForceOverwrite, context.SkelPath())
-		if err != nil {
-			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to update: %s", err)
-		}
-
-		err = taskCollection.Update(published)
+		err = collection.Update(published)
 		if err != nil {
 			return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to save to DB: %s", err)
 		}
@@ -1222,7 +1169,7 @@ func apiPublishUpdate(c *gin.Context) {
 		if b.SkipCleanup == nil || !*b.SkipCleanup {
 			cleanComponents := make([]string, 0, len(result.UpdatedSources)+len(result.RemovedSources))
 			cleanComponents = append(append(cleanComponents, result.UpdatedComponents()...), result.RemovedComponents()...)
-			err = taskCollection.CleanupPrefixComponentFiles(context, published, cleanComponents, taskCollectionFactory, out)
+			err = collection.CleanupPrefixComponentFiles(context, published, cleanComponents, collectionFactory, out)
 			if err != nil {
 				return &task.ProcessReturnValue{Code: http.StatusInternalServerError, Value: nil}, fmt.Errorf("unable to update: %s", err)
 			}

api/repos.go

@@ -102,7 +102,7 @@ type repoCreateParams struct {
 	DefaultDistribution string `     json:"DefaultDistribution"  example:"stable"`
 	// Default component when publishing from this local repo
 	DefaultComponent string `        json:"DefaultComponent"     example:"main"`
-	// Snapshot name to create repository from (optional)
+	// Snapshot name to create repoitory from (optional)
 	FromSnapshot string `            json:"FromSnapshot"         example:""`
 }
 
@@ -180,7 +180,7 @@ type reposEditParams struct {
 	Comment *string `                    json:"Comment"              example:"example repo"`
 	// Change Default Distribution for publishing
 	DefaultDistribution *string `        json:"DefaultDistribution"  example:""`
-	// Change Default Component for publishing
+	// Change Devault Component for publishing
 	DefaultComponent *string `        json:"DefaultComponent"     example:""`
 }
 

deb/local.go

@@ -168,8 +168,6 @@ func (collection *LocalRepoCollection) Update(repo *LocalRepo) error {
 
 // LoadComplete loads additional information for local repo
 func (collection *LocalRepoCollection) LoadComplete(repo *LocalRepo) error {
-	repo.packageRefs = &PackageRefList{}
-
 	encoded, err := collection.db.Get(repo.RefKey())
 	if err == database.ErrNotFound {
 		return nil
@@ -178,6 +176,7 @@ func (collection *LocalRepoCollection) LoadComplete(repo *LocalRepo) error {
 		return err
 	}
 
+	repo.packageRefs = &PackageRefList{}
 	return repo.packageRefs.Decode(encoded)
 }
 

deb/local_test.go

@@ -133,18 +133,6 @@ func (s *LocalRepoCollectionSuite) TestByUUID(c *C) {
 	c.Assert(r.String(), Equals, repo.String())
 }
 
-func (s *LocalRepoCollectionSuite) TestLoadCompleteNoRefKey(c *C) {
-	repo := NewLocalRepo("local1", "Comment 1")
-	c.Assert(s.collection.Update(repo), IsNil)
-
-	r, err := s.collection.ByName("local1")
-	c.Assert(err, IsNil)
-
-	c.Assert(s.collection.LoadComplete(r), IsNil)
-	c.Assert(r.packageRefs, NotNil)
-	c.Assert(r.NumPackages(), Equals, 0)
-}
-
 func (s *LocalRepoCollectionSuite) TestUpdateLoadComplete(c *C) {
 	repo := NewLocalRepo("local1", "Comment 1")
 	c.Assert(s.collection.Update(repo), IsNil)

deb/publish.go

@@ -609,7 +609,12 @@ func (p *PublishedRepo) StoragePrefix() string {
 
 // Key returns unique key identifying PublishedRepo
 func (p *PublishedRepo) Key() []byte {
-	return []byte("U" + p.StoragePrefix() + ">>" + p.Distribution)
+	if p.MultiDist {
+		// do not lock Distribution in MultiDist
+		return []byte("UM" + p.StoragePrefix())
+	} else {
+		return []byte("U" + p.StoragePrefix() + ">>" + p.Distribution)
+	}
 }
 
 // RefKey is a unique id for package reference list

deb/reflist.go

@@ -79,9 +79,6 @@ func (l *PackageRefList) Decode(input []byte) error {
 
 // ForEach calls handler for each package ref in list
 func (l *PackageRefList) ForEach(handler func([]byte) error) error {
-	if l == nil {
-		return nil
-	}
 	var err error
 	for _, p := range l.Refs {
 		err = handler(p)

deb/reflist_test.go

@@ -130,17 +130,6 @@ func (s *PackageRefListSuite) TestPackageRefListForeach(c *C) {
 	c.Check(err, Equals, e)
 }
 
-func (s *PackageRefListSuite) TestForEachNilList(c *C) {
-	var l *PackageRefList
-	called := false
-	err := l.ForEach(func([]byte) error {
-		called = true
-		return nil
-	})
-	c.Assert(err, IsNil)
-	c.Assert(called, Equals, false)
-}
-
 func (s *PackageRefListSuite) TestHas(c *C) {
 	_ = s.list.Add(s.p1)
 	_ = s.list.Add(s.p3)

docs/Files.md

@@ -2,7 +2,7 @@
 <div>
 
 In order to add debian package files to a local repository, files are first uploaded to a temporary directory.
-Then the directory (or a specific file within) is added to a repository. After adding to a repository, the directory resp. files are removed bt default.
+Then the directory (or a specific file within) is added to a repository. After adding to a repositorty, the directory resp. files are removed bt default.
 
 All uploaded files are stored under `<rootDir>/upload/<tempdir>` directory.
 

docs/Packages.md

@@ -1,5 +1,5 @@
 # Search Package Collection
 <div>
-Perform operations on the whole collection of packages in aptly database.
+Perform operations on the whole collection of packages in apty database.
 </div>
 

docs/Publish.md

@@ -35,6 +35,6 @@ aptly publish repo my-repo --gpg-key=KEY_ID_a --gpg-key=KEY_ID_b
 #### Parameters
 
 Publish APIs use following convention to identify published repositories: `/api/publish/:prefix/:distribution`.  `:distribution` is distribution name, while `:prefix` is `[<storage>:]<prefix>` (storage is optional, it defaults to empty string), if publishing prefix contains slashes `/`, they should be replaced with underscores (`_`) and underscores
-should be replaced with double underscore (`__`). To specify root `:prefix`, use `:.`, as `.` is ambiguous in URLs.
+should be replaced with double underscore (`__`). To specify root `:prefix`, use `:.`, as `.` is ambigious in URLs.
 
 </div>

docs/Repos.md

@@ -1,6 +1,6 @@
 # Manage Local Repositories
 <div>
-A local repository is a collection of versioned packages (usually custom packages created internally).
+A local repository is a collection of versionned packages (usually custom packages created internally).
 
 Packages can be added, removed, moved or copied between repos.
 

system/t12_api/publish.py

@@ -992,6 +992,232 @@ class PublishSwitchAPITestRepo(APITest):
         self.check_not_exists("public/" + prefix + "dists/")
 
 
+class PublishSwitchAPITestMirror(APITest):
+    """
+    PUT /publish/:prefix/:distribution (snapshots), DELETE /publish/:prefix/:distribution
+    """
+    fixtureGpg = True
+
+    def check(self):
+        mirror_name = self.random_name()
+        mirror_desc = {'Name': mirror_name,
+                       'ArchiveURL': 'http://repo.aptly.info/system-tests/packagecloud.io/varnishcache/varnish30/debian/',
+                       'Distribution': 'wheezy',
+                       'Keyrings': ["aptlytest.gpg"],
+                       'Architectures': ["amd64"],
+                       'Components': ['main']}
+        mirror_desc['IgnoreSignatures'] = True
+
+        # Create Mirror
+        resp = self.post("/api/mirrors", json=mirror_desc)
+        self.check_equal(resp.status_code, 201)
+
+        # Get Mirror
+        resp = self.get("/api/mirrors/" + mirror_name + "/packages")
+        self.check_equal(resp.status_code, 404)
+
+        # Update Mirror
+        resp = self.put_task("/api/mirrors/" + mirror_name, json=mirror_desc)
+        self.check_task(resp)
+
+        # Snapshot Mirror
+        snapshot1_name = self.random_name()
+        task = self.post_task("/api/mirrors/" + mirror_name + '/snapshots', json={'Name': snapshot1_name})
+        self.check_task(task)
+
+        # Publish Snapshot
+        prefix = self.random_name()
+        task = self.post_task(
+            "/api/publish/" + prefix,
+            json={
+                "Architectures": ["i386", "source"],
+                "SourceKind": "snapshot",
+                "Sources": [{"Name": snapshot1_name}],
+                "Signing": DefaultSigningOptions,
+            })
+        self.check_task(task)
+
+        repo_expected = {
+            'AcquireByHash': False,
+            'Architectures': ['i386', 'source'],
+            'Codename': '',
+            'Distribution': 'wheezy',
+            'Label': '',
+            'NotAutomatic': '',
+            'ButAutomaticUpgrades': '',
+            'Origin': 'packagecloud.io/varnishcache/varnish30',
+            'Version': '',
+            'Path': prefix + '/' + 'wheezy',
+            'Prefix': prefix,
+            'SignedBy': '',
+            'SkipContents': False,
+            'MultiDist': False,
+            'SourceKind': 'snapshot',
+            'Sources': [{'Component': 'main', 'Name': snapshot1_name}],
+            'Storage': '',
+            'Suite': ''}
+        all_repos = self.get("/api/publish")
+        self.check_equal(all_repos.status_code, 200)
+        self.check_in(repo_expected, all_repos.json())
+
+        # Snapshot Mirror 2
+        snapshot2_name = self.random_name()
+        task = self.post_task("/api/mirrors/" + mirror_name + '/snapshots', json={'Name': snapshot2_name})
+        self.check_task(task)
+
+        task = self.put_task(
+            "/api/publish/" + prefix + "/wheezy",
+            json={
+                "Snapshots": [{"Component": "main", "Name": snapshot2_name}],
+                "Signing": DefaultSigningOptions,
+                "SkipContents": True,
+                "Label": "fun",
+                "Origin": "earth",
+                "Version": "13.3",
+            })
+        self.check_task(task)
+        repo_expected = {
+            'AcquireByHash': False,
+            'Architectures': ['i386', 'source'],
+            'Codename': '',
+            'Distribution': 'wheezy',
+            'Label': 'fun',
+            'Origin': 'earth',
+            'Version': '13.3',
+            'NotAutomatic': '',
+            'ButAutomaticUpgrades': '',
+            'Path': prefix + '/' + 'wheezy',
+            'Prefix': prefix,
+            'SignedBy': '',
+            'SkipContents': True,
+            'MultiDist': False,
+            'SourceKind': 'snapshot',
+            'Sources': [{'Component': 'main', 'Name': snapshot2_name}],
+            'Storage': '',
+            'Suite': ''}
+
+        all_repos = self.get("/api/publish")
+        self.check_equal(all_repos.status_code, 200)
+        self.check_in(repo_expected, all_repos.json())
+
+        task = self.delete_task("/api/publish/" + prefix + "/wheezy")
+        self.check_task(task)
+        self.check_not_exists("public/" + prefix + "dists/")
+
+
+class PublishSwitchAPITestSnapshot(APITest):
+    """
+    publish snapshot of snapshot
+    """
+    fixtureGpg = True
+
+    def check(self):
+        repo_name = self.random_name()
+        self.check_equal(self.post(
+            "/api/repos", json={"Name": repo_name, "DefaultDistribution": "wheezy"}).status_code, 201)
+
+        d = self.random_name()
+        self.check_equal(
+            self.upload("/api/files/" + d,
+                        "pyspi_0.6.1-1.3.dsc",
+                        "pyspi_0.6.1-1.3.diff.gz", "pyspi_0.6.1.orig.tar.gz",
+                        "pyspi-0.6.1-1.3.stripped.dsc").status_code, 200)
+        task = self.post_task("/api/repos/" + repo_name + "/file/" + d)
+        self.check_task(task)
+
+        snapshot1_name = self.random_name()
+        task = self.post_task("/api/repos/" + repo_name + '/snapshots', json={'Name': snapshot1_name})
+        self.check_task(task)
+
+        prefix = self.random_name()
+        task = self.post_task(
+            "/api/publish/" + prefix,
+            json={
+                "Architectures": ["i386", "source"],
+                "SourceKind": "snapshot",
+                "Sources": [{"Name": snapshot1_name}],
+                "Signing": DefaultSigningOptions,
+            })
+        self.check_task(task)
+
+        repo_expected = {
+            'AcquireByHash': False,
+            'Architectures': ['i386', 'source'],
+            'Codename': '',
+            'Distribution': 'wheezy',
+            'Label': '',
+            'NotAutomatic': '',
+            'ButAutomaticUpgrades': '',
+            'Origin': '',
+            'Version': '',
+            'Path': prefix + '/' + 'wheezy',
+            'Prefix': prefix,
+            'SignedBy': '',
+            'SkipContents': False,
+            'MultiDist': False,
+            'SourceKind': 'snapshot',
+            'Sources': [{'Component': 'main', 'Name': snapshot1_name}],
+            'Storage': '',
+            'Suite': ''}
+        all_repos = self.get("/api/publish")
+        self.check_equal(all_repos.status_code, 200)
+        self.check_in(repo_expected, all_repos.json())
+
+        self.check_not_exists(
+            "public/" + prefix + "/pool/main/b/boost-defaults/libboost-program-options-dev_1.49.0.1_i386.deb")
+        self.check_exists("public/" + prefix +
+                          "/pool/main/p/pyspi/pyspi-0.6.1-1.3.stripped.dsc")
+
+        snapshot2_name = self.random_name()
+        task = self.post_task("/api/snapshots", json={"Name": snapshot2_name, 'SourceSnapshots': [snapshot1_name]})
+        self.check_task(task)
+
+        task = self.put_task(
+            "/api/publish/" + prefix + "/wheezy",
+            json={
+                "Snapshots": [{"Component": "main", "Name": snapshot2_name}],
+                "Signing": DefaultSigningOptions,
+                "SkipContents": True,
+                "Label": "fun",
+                "Origin": "earth",
+                "Version": "13.3",
+            })
+        self.check_task(task)
+        repo_expected = {
+            'AcquireByHash': False,
+            'Architectures': ['i386', 'source'],
+            'Codename': '',
+            'Distribution': 'wheezy',
+            'Label': 'fun',
+            'Origin': 'earth',
+            'Version': '13.3',
+            'NotAutomatic': '',
+            'ButAutomaticUpgrades': '',
+            'Path': prefix + '/' + 'wheezy',
+            'Prefix': prefix,
+            'SignedBy': '',
+            'SkipContents': True,
+            'MultiDist': False,
+            'SourceKind': 'snapshot',
+            'Sources': [{'Component': 'main', 'Name': snapshot2_name}],
+            'Storage': '',
+            'Suite': ''}
+
+        all_repos = self.get("/api/publish")
+        self.check_equal(all_repos.status_code, 200)
+        self.check_in(repo_expected, all_repos.json())
+
+        # FIXME: what should exist here ? publish snapshot of snapshot
+        self.check_not_exists(
+            "public/" + prefix + "/pool/main/b/boost-defaults/libboost-program-options-dev_1.49.0.1_i386.deb")
+        self.check_not_exists("public/" + prefix +
+                              "/pool/main/p/pyspi/pyspi-0.6.1-1.3.stripped.dsc")
+
+        task = self.delete_task("/api/publish/" + prefix + "/wheezy")
+        self.check_task(task)
+        self.check_not_exists("public/" + prefix + "dists/")
+
+
 class PublishSwitchAPITestRepoSignedBy(APITest):
     """
     PUT /publish/:prefix/:distribution (snapshots), DELETE /publish/:prefix/:distribution

task/list.go

@@ -65,6 +65,7 @@ func (list *List) consumer() {
 						task.State = SUCCEEDED
 					}
 
+					fmt.Printf("RACE DEBUG: Task Done     '%s', freeing %s\n", task.Name, task.resources)
 					list.usedResources.Free(task.resources)
 
 					task.wgTask.Done()
@@ -77,6 +78,8 @@ func (list *List) consumer() {
 							blockingTasks := list.usedResources.UsedBy(t.resources)
 							if len(blockingTasks) == 0 {
 								list.usedResources.MarkInUse(t.resources, t)
+
+								fmt.Printf("RACE DEBUG: Task Resuming '%s', locking %s\n", t.Name, t.resources)
 								// unlock list since queueing may block
 								list.Unlock()
 								unlocked = true
@@ -209,10 +212,12 @@ func (list *List) RunTaskInBackground(name string, resources []string, process P
 	tasks := list.usedResources.UsedBy(resources)
 	if len(tasks) == 0 {
 		list.usedResources.MarkInUse(task.resources, task)
+		fmt.Printf("RACE DEBUG: Task Starting '%s', locking %s\n", name, resources)
 		// queueing task might block if channel not ready, unlock list before queueing
 		list.Unlock()
 		list.queue <- task
 	} else {
+		fmt.Printf("RACE DEBUG: Task Queued   '%s', waiting on %s\n", name, resources)
 		list.Unlock()
 	}