Add api support for raw blob search

See issue
http://feedback.gitlab.com/forums/176466-general/suggestions/4566001-expose-raw-object-search-via-the-gitlab-api

doc/api/repositories.md

@@ -343,9 +343,9 @@ Parameters:
 ```
 
 
-## Raw blob content
+## Raw file content
 
-Get the raw file contents for a file.
+Get the raw file contents for a file by commit sha and path.
 
 ```
 GET /projects/:id/repository/blobs/:sha
@@ -358,6 +358,20 @@ Parameters:
 + `filepath` (required) - The path the file
 
 
+## Raw blob content
+
+Get the raw file contents for a blob by blob sha.
+
+```
+GET /projects/:id/repository/raw_blobs/:sha
+```
+
+Parameters:
+
++ `id` (required) - The ID of a project
++ `sha` (required) - The blob sha
+
+
 ## Get file archive
 
 Get a an archive of the repository

lib/api/repositories.rb

@@ -177,6 +177,28 @@ module API
         present blob.data
       end
 
+      # Get a raw blob contents by blob sha
+      #
+      # Parameters:
+      #   id (required) - The ID of a project
+      #   sha (required) - The blob's sha
+      # Example Request:
+      #   GET /projects/:id/repository/raw_blobs/:sha
+      get ":id/repository/raw_blobs/:sha" do
+        ref = params[:sha]
+
+        repo = user_project.repository
+
+        blob = Gitlab::Git::Blob.raw(repo, ref)
+
+        not_found! "Blob" unless blob
+
+        env['api.format'] = :txt
+
+        content_type blob.mime_type
+        present blob.data
+      end
+
       # Get a an archive of the repository
       #
       # Parameters:

spec/requests/api/repositories_spec.rb

@@ -225,6 +225,13 @@ describe API::API do
     end
   end
 
+  describe "GET /projects/:id/repository/raw_blobs/:sha" do
+    it "should get the raw file contents" do
+      get api("/projects/#{project.id}/repository/raw_blobs/d1aff2896d99d7acc4d9780fbb716b113c45ecf7", user)
+      response.status.should == 200
+    end
+  end
+
   describe "GET /projects/:id/repository/archive/:sha" do
     it "should get the archive" do
       get api("/projects/#{project.id}/repository/archive", user)