API: implement retrieve of repository tree

doc/api/repositories.md

@@ -239,6 +239,56 @@ Parameters:
 ]
 ```
 
+## List repository tree
+
+Get a list of repository files and directories in a project.
+
+```
+GET /projects/:id/repository/tree
+```
+
+Parameters:
+
++ `id` (required) - The ID of a project
++ `path` (optional) - The path inside repository. Used to get contend of subdirectories
++ `ref_name` (optional) - The name of a repository branch or tag or if not given the default branch
+
+```json
+
+[{
+  "name": "assets",
+  "type": "tree",
+  "mode": "040000",
+  "id": "6229c43a7e16fcc7e95f923f8ddadb8281d9c6c6"
+}, {
+  "name": "contexts",
+  "type": "tree",
+  "mode": "040000",
+  "id": "faf1cdf33feadc7973118ca42d35f1e62977e91f"
+}, {
+  "name": "controllers",
+  "type": "tree",
+  "mode": "040000",
+  "id": "95633e8d258bf3dfba3a5268fb8440d263218d74"
+}, {
+  "name": "Rakefile",
+  "type": "blob",
+  "mode": "100644",
+  "id": "35b2f05cbb4566b71b34554cf184a9d0bd9d46d6"
+}, {
+  "name": "VERSION",
+  "type": "blob",
+  "mode": "100644",
+  "id": "803e4a4f3727286c3093c63870c2b6524d30ec4f"
+}, {
+  "name": "config.ru",
+  "type": "blob",
+  "mode": "100644",
+  "id": "dfd2d862237323aa599be31b473d70a8a817943b"
+}]
+
+```
+
 
 ## Raw blob content
 

lib/api/repositories.rb

@@ -102,6 +102,31 @@ module API
         present commits, with: Entities::RepoCommit
       end
 
+      # Get a project repository tree
+      #
+      # Parameters:
+      #   id (required) - The ID of a project
+      #   ref_name (optional) - The name of a repository branch or tag, if not given the default branch is used
+      # Example Request:
+      #   GET /projects/:id/repository/tree
+      get ":id/repository/tree" do
+        authorize! :download_code, user_project
+
+        ref = params[:ref_name] || user_project.try(:default_branch) || 'master'
+        path = params[:path] || nil
+
+        commit = user_project.repository.commit(ref)
+        tree = Tree.new(user_project.repository, commit.id, ref, path)
+
+        trees = []
+
+        %w(trees blobs submodules).each do |type|
+          trees += tree.send(type).map { |t| { name: t.name, type: type.singularize, mode: t.mode, id: t.id } }
+        end
+
+        trees
+      end
+
       # Get a raw file contents
       #
       # Parameters:

spec/requests/api/repositories_spec.rb

@@ -111,6 +111,29 @@ describe API::API do
     end
   end
 
+  describe "GET /projects/:id/repository/tree" do
+    context "authorized user" do
+      before { project.team << [user2, :reporter] }
+
+      it "should return project commits" do
+        get api("/projects/#{project.id}/repository/tree", user)
+        response.status.should == 200
+
+        json_response.should be_an Array
+        json_response.first['name'].should == 'app'
+        json_response.first['type'].should == 'tree'
+        json_response.first['mode'].should == '040000'
+      end
+    end
+
+    context "unauthorized user" do
+      it "should not return project commits" do
+        get api("/projects/#{project.id}/repository/tree")
+        response.status.should == 401
+      end
+    end
+  end
+
   describe "GET /projects/:id/repository/commits/:sha/blob" do
     it "should get the raw file contents" do
       get api("/projects/#{project.id}/repository/commits/master/blob?filepath=README.md", user)