Update create repo API to support snapshots

To achieve feature parity with cli, it is now possible
to create repos from snapshots

AUTHORS

@@ -63,3 +63,4 @@ List of contributors, in chronological order:
 * Ramón N.Rodriguez (https://github.com/runitonmetal)
 * Golf Hu (https://github.com/hudeng-go)
 * Cookie Fei (https://github.com/wuhuang26)
+* Andrey Loukhnov (https://github.com/aol-nnov)

api/repos.go

@@ -69,25 +69,32 @@ func apiReposList(c *gin.Context) {
 	c.JSON(200, result)
 }
 
+type repoCreateParams struct {
+	// local repository name
+	Name string `binding:"required"`
+	// text describing local repository, for the user
+	Comment string
+	// default distribution when publishing from this local repo
+	DefaultDistribution string
+	// default component when publishing from this local repo
+	DefaultComponent string
+	// snapshot name to create repo from
+	FromSnapshot string
+}
+
 // @Summary Create repository
 // @Description Create a local repository.
 // @Tags Repos
 // @Produce  json
 // @Consume  json
-// @Param Name query string false "Name of repository to be created."
+// @Param request body repoCreateParams true "Parameters"
-// @Param Comment query string false "Text describing local repository, for the user"
-// @Param DefaultDistribution query string false "Default distribution when publishing from this local repo"
-// @Param DefaultComponent query string false "Default component when publishing from this local repo"
 // @Success 201 {object} deb.LocalRepo
-// @Failure 400 {object} Error "Repository already exists"
+// @Failure 404 {object} Error "Source snapshot not found"
+// @Failure 409 {object} Error "Local repo already exists"
+// @Failure 500 {object} Error "Internal error"
 // @Router /api/repos [post]
 func apiReposCreate(c *gin.Context) {
-	var b struct {
+	var b repoCreateParams
-		Name                string `binding:"required"`
-		Comment             string
-		DefaultDistribution string
-		DefaultComponent    string
-	}
 
 	if c.Bind(&b) != nil {
 		return
@@ -98,14 +105,41 @@ func apiReposCreate(c *gin.Context) {
 	repo.DefaultDistribution = b.DefaultDistribution
 
 	collectionFactory := context.NewCollectionFactory()
-	collection := collectionFactory.LocalRepoCollection()
+
-	err := collection.Add(repo)
+	if b.FromSnapshot != "" {
-	if err != nil {
+		var snapshot *deb.Snapshot
-		AbortWithJSONError(c, 400, err)
+
+		snapshotCollection := collectionFactory.SnapshotCollection()
+
+		snapshot, err := snapshotCollection.ByName(b.FromSnapshot)
+		if err != nil {
+			AbortWithJSONError(c, http.StatusNotFound, fmt.Errorf("source snapshot not found: %s", err))
+			return
+		}
+
+		err = snapshotCollection.LoadComplete(snapshot)
+		if err != nil {
+			AbortWithJSONError(c, http.StatusInternalServerError, fmt.Errorf("unable to load source snapshot: %s", err))
+			return
+		}
+
+		repo.UpdateRefList(snapshot.RefList())
+	}
+
+	localRepoCollection := collectionFactory.LocalRepoCollection()
+
+	if _, err := localRepoCollection.ByName(b.Name); err == nil {
+		AbortWithJSONError(c, http.StatusConflict, fmt.Errorf("local repo with name %s already exists", b.Name))
 		return
 	}
 
-	c.JSON(201, repo)
+	err := localRepoCollection.Add(repo)
+	if err != nil {
+		AbortWithJSONError(c, http.StatusInternalServerError, err)
+		return
+	}
+
+	c.JSON(http.StatusCreated, repo)
 }
 
 // PUT /api/repos/:name

system/t12_api/repos.py

@@ -28,6 +28,37 @@ class ReposAPITestCreateShow(APITest):
         self.check_equal(self.get("/api/repos/" + self.random_name()).status_code, 404)
 
 
+class ReposAPITestCreateFromSnapshot(APITest):
+    """
+    Create repo from snapshot
+    """
+    def check(self):
+        initial_repo = self.random_name()
+        self.check_equal(self.post("/api/repos", json={"Name": initial_repo}).status_code, 201)
+
+        d = self.random_name()
+        self.check_equal(self.upload("/api/files/" + d,
+                         "libboost-program-options-dev_1.49.0.1_i386.deb").status_code, 200)
+
+        task = self.post_task("/api/repos/" + initial_repo + "/file/" + d)
+        self.check_task(task)
+
+        snapshot_name = self.random_name()
+        task = self.post_task("/api/repos/" + initial_repo + '/snapshots', json={'Name': snapshot_name})
+        self.check_task(task)
+        self.check_equal(self.get("/api/snapshots/" + snapshot_name).status_code, 200)
+
+        repo_from_snapshot = self.random_name()
+        new_repo = {'Name': repo_from_snapshot,
+                    'FromSnapshot': snapshot_name}
+
+        resp = self.post("/api/repos", json=new_repo)
+        self.check_equal(resp.status_code, 201)
+
+        self.check_equal(self.get("/api/repos/" + repo_from_snapshot + "/packages").json(),
+                         ['Pi386 libboost-program-options-dev 1.49.0.1 918d2f433384e378'])
+
+
 class ReposAPITestCreateIndexDelete(APITest):
     """
     GET /api/repos, POST /api/repos, DELETE /api/repos/:name