updating project api to include raw blob contents and single branch

Gemfile

 source "http://rubygems.org"
 
 gem "rails", "3.2.5"
-gem "rake", "0.8.7"
 
 # Supported DBs
 gem "sqlite3"
@@ -19,7 +18,7 @@ gem 'yaml_db',       :git => "https://github.com/gitlabhq/yaml_db.git"
 gem 'grack',         :git => "https://github.com/gitlabhq/grack.git"
 gem "linguist", "~> 1.0.0", :git => "https://github.com/gitlabhq/linguist.git"
 
-gem "grape"
+gem "grape", "~> 0.2.1"
 gem "stamp"
 gem "kaminari"
 gem "haml-rails"

Gemfile.lock

@@ -170,7 +170,7 @@ GEM
     gherkin (2.11.0)
       json (>= 1.4.6)
     git (1.2.5)
-    grape (0.2.0)
+    grape (0.2.1)
       hashie (~> 1.2)
       multi_json
       multi_xml
@@ -263,7 +263,7 @@ GEM
       rdoc (~> 3.4)
       thor (>= 0.14.6, < 2.0)
     raindrops (0.9.0)
-    rake (0.8.7)
+    rake (0.9.2.2)
     raphael-rails (1.5.2)
     rdoc (3.12)
       json (~> 1.4)
@@ -392,7 +392,7 @@ DEPENDENCIES
   git
   gitolite!
   grack!
-  grape
+  grape (~> 0.2.1)
   grit!
   haml-rails
   httparty
@@ -410,7 +410,6 @@ DEPENDENCIES
   pygments.rb!
   rails (= 3.2.5)
   rails-footnotes
-  rake (= 0.8.7)
   raphael-rails (= 1.5.2)
   redcarpet (~> 2.1.1)
   resque (~> 1.20.0)

doc/api/projects.md

@@ -129,6 +129,43 @@ Parameters:
 ]
 ```
 
+Get a single project repository branch.
+
+```
+GET /projects/:id/repository/branches/:branch
+```
+
+Parameters:
+
++ `id` (required) - The ID or code name of a project
++ `branch` (required) - The name of the branch
+
+```json
+{
+  "name": "master",
+  "commit": {
+    "id": "7b5c3cc8be40ee161ae89a06bba6229da1032a0c",
+    "parents": [
+      {
+        "id": "4ad91d3c1144c406e50c7b33bae684bd6837faf8"
+      }
+    ],
+    "tree": "46e82de44b1061621357f24c05515327f2795a95",
+    "message": "add projects API",
+    "author": {
+      "name": "John Smith",
+      "email": "john@example.com"
+    },
+    "committer": {
+      "name": "John Smith",
+      "email": "john@example.com"
+    },
+    "authored_date": "2012-06-27T05:51:39-07:00",
+    "committed_date": "2012-06-28T03:44:20-07:00"
+  }
+}
+```
+
 ## Project repository tags
 
 Get a list of project repository tags sorted by name in reverse alphabetical order.
@@ -268,3 +305,19 @@ Parameters:
 + `snippet_id` (required) - The ID of a project's snippet
 
 Status code `200` will be returned on success.
+
+## Raw blob content
+
+Get the raw file contents for a file.
+
+```
+GET /projects/:id/repository/commits/:sha/blob
+```
+
+Parameters:
+
++ `id` (required) - The ID or code name of a project
++ `sha` (required) - The commit or branch name
++ `filepath` (required) - The path th the file 
+
+Will return the raw file contents.

lib/api/projects.rb

@@ -33,6 +33,18 @@ module Gitlab
         present user_project.repo.heads.sort_by(&:name), :with => Entities::RepoObject
       end
 
+      # Get a single branch
+      #
+      # Parameters:
+      #   id (required) - The ID or code name of a project
+      #   branch_id (required) - The name of the branch
+      # Example Request:
+      #   GET /projects/:id/repository/branches/:branch_id
+      get ":id/repository/branches/:branch_id" do
+        @branch = user_project.repo.heads.find { |item| item.name == params[:branch_id] }
+        present @branch, :with => Entities::RepoObject
+      end
+
       # Get a project repository tags
       #
       # Parameters:
@@ -131,6 +143,34 @@ module Gitlab
         @snippet = user_project.snippets.find(params[:snippet_id])
         present @snippet.content
       end
+
+      # Get a raw file contents
+      #
+      # Parameters:
+      #   id (required) - The ID or code name of a project
+      #   sha (required) - The commit or branch name 
+      #   filepath (required) - The path to the file to display
+      # Example Request:
+      #   GET /projects/:id/repository/commits/:sha/blob
+      get ":id/repository/commits/:sha/blob" do
+        ref = params[:sha]
+
+        commit = user_project.commit ref
+        error!('404 Commit Not Found', 404) unless commit
+        
+        tree = Tree.new commit.tree, user_project, ref, params[:filepath]
+        error!('404 File Not Found', 404) unless tree.try(:tree)
+        
+        if tree.text?
+          encoding = Gitlab::Encode.detect_encoding(tree.data)
+          content_type encoding ? "text/plain; charset=#{encoding}" : "text/plain"
+        else
+          content_type tree.mime_type
+        end
+
+        present tree.data
+      end
+
     end
   end
 end

spec/api/projects_spec.rb

@@ -53,6 +53,16 @@ describe Gitlab::API do
     end
   end
 
+  describe "GET /projects/:id/repository/branches/:branch" do
+    it "should return the branch information for a single branch" do
+      get "#{api_prefix}/projects/#{project.code}/repository/branches/new_design?private_token=#{user.private_token}"
+      response.status.should == 200
+
+      json_response['name'].should == 'new_design'
+      json_response['commit']['id'].should == '621491c677087aa243f165eab467bfdfbee00be1'
+    end
+  end
+
   describe "GET /projects/:id/repository/tags" do
     it "should return an array of project tags" do
       get "#{api_prefix}/projects/#{project.code}/repository/tags?private_token=#{user.private_token}"
@@ -93,7 +103,7 @@ describe Gitlab::API do
     it "should delete existing project snippet" do
       expect {
         delete "#{api_prefix}/projects/#{project.code}/snippets/#{snippet.id}?private_token=#{user.private_token}"
-      }.should change { Snippet.count }.by(-1)
+      }.to change { Snippet.count }.by(-1)
     end
   end
 
@@ -103,4 +113,24 @@ describe Gitlab::API do
       response.status.should == 200
     end
   end
+
+  describe "GET /projects/:id/:sha/blob" do
+    it "should get the raw file contents" do
+      get "#{api_prefix}/projects/#{project.code}/repository/commits/master/blob?filepath=README.md&private_token=#{user.private_token}"
+      
+      response.status.should == 200
+    end
+
+    it "should return 404 for invalid branch_name" do
+      get "#{api_prefix}/projects/#{project.code}/repository/commits/invalid_branch_name/blob?filepath=README.md&private_token=#{user.private_token}"
+      
+      response.status.should == 404
+    end
+
+    it "should return 404 for invalid file" do
+      get "#{api_prefix}/projects/#{project.code}/repository/commits/master/blob?filepath=README.invalid&private_token=#{user.private_token}"
+      
+      response.status.should == 404
+    end
+  end
 end