Add support for various archive formats.

Used mime-types gem instead of hardcoding content types.
Allow multiple extensions in archive route (.tar.gz, .tar.bz2).
Change content disposition from infile(?) to attachment for api.
Fixed api would return “archive” instead of {project}-{hash}.{ext}

app/controllers/projects/repositories_controller.rb

@@ -16,7 +16,7 @@ class Projects::RepositoriesController < Projects::ApplicationController
     storage_path = Rails.root.join("tmp", "repositories")
-    file_path = @repository.archive_repo(params[:ref], storage_path)
+    file_path = @repository.archive_repo(params[:ref], storage_path, params[:format].downcase)
     if file_path
       # Send file to user

config/routes.rb

@@ -217,7 +217,7 @@ Gitlab::Application.routes.draw do
       resource :repository, only: [:show] do
         member do
           get "stats"
-          get "archive"
+          get "archive", constraints: { format: Gitlab::Regex.archive_formats_regex }
         end
       end

lib/api/repositories.rb

+require 'mime/types'
+
 module API
   # Projects API
   class Repositories < Grape::API
@@ -206,18 +208,20 @@ module API
       #   sha (optional) - the commit sha to download defaults to the tip of the default branch
       # Example Request:
       #   GET /projects/:id/repository/archive
-      get ":id/repository/archive" do
+      get ":id/repository/archive", requirements: { format: Gitlab::Regex.archive_formats_regex } do
         authorize! :download_code, user_project
         repo = user_project.repository
         ref = params[:sha]
+        format = params[:format]
         storage_path = Rails.root.join("tmp", "repositories")
-        file_path = repo.archive_repo(ref, storage_path)
+        file_path = repo.archive_repo(ref, storage_path, format)
         if file_path && File.exists?(file_path)
           data = File.open(file_path, 'rb').read
-          header "Content-Disposition:", " infile; filename=\"#{File.basename(file_path)}\""
-          content_type 'application/x-gzip'
+          header["Content-Disposition"] = "attachment; filename=\"#{File.basename(file_path)}\""
+
+          content_type MIME::Types.type_for(file_path).first.content_type
           env['api.format'] = :binary

lib/gitlab/regex.rb

@@ -17,6 +17,11 @@ module Gitlab
     def path_regex
       default_regex
     end
+    
+    def archive_formats_regex
+      #|zip|tar|    tar.gz    |         tar.bz2         |
+      /(zip|tar|tar\.gz|tgz|gz|tar\.bz2|tbz|tbz2|tb2|bz2)/
+    end
     def git_reference_regex
       # Valid git ref regex, see:

spec/requests/api/repositories_spec.rb

 require 'spec_helper'
+require 'mime/types'
 describe API::API do
   include ApiHelpers
@@ -232,11 +233,29 @@ describe API::API do
     end
   end
-  describe "GET /projects/:id/repository/archive/:sha" do
+  describe "GET /projects/:id/repository/archive(.:format)?:sha" do
     it "should get the archive" do
       get api("/projects/#{project.id}/repository/archive", user)
+      repo_name = project.repository.name.gsub("\.git", "")
       response.status.should == 200
-      response.content_type.should == 'application/x-gzip'
+      response.headers['Content-Disposition'].should =~ /filename\=\"#{repo_name}\-[^\.]+\.tar.gz\"/
+      response.content_type.should == MIME::Types.type_for('file.tar.gz').first.content_type
+    end
+
+    it "should get the archive.zip" do
+      get api("/projects/#{project.id}/repository/archive.zip", user)
+      repo_name = project.repository.name.gsub("\.git", "")
+      response.status.should == 200
+      response.headers['Content-Disposition'].should =~ /filename\=\"#{repo_name}\-[^\.]+\.zip\"/
+      response.content_type.should == MIME::Types.type_for('file.zip').first.content_type
+    end
+
+    it "should get the archive.tar.bz2" do
+      get api("/projects/#{project.id}/repository/archive.tar.bz2", user)
+      repo_name = project.repository.name.gsub("\.git", "")
+      response.status.should == 200
+      response.headers['Content-Disposition'].should =~ /filename\=\"#{repo_name}\-[^\.]+\.tar.bz2\"/
+      response.content_type.should == MIME::Types.type_for('file.tar.bz2').first.content_type
     end
     it "should return 404 for invalid sha" do

spec/routing/project_routing_spec.rb

@@ -130,6 +130,14 @@ describe Projects::RepositoriesController, "routing" do
     get("/gitlab/gitlabhq/repository/archive").should route_to('projects/repositories#archive', project_id: 'gitlab/gitlabhq')
   end
+  it "to #archive format:zip" do
+    get("/gitlab/gitlabhq/repository/archive.zip").should route_to('projects/repositories#archive', project_id: 'gitlab/gitlabhq', format: 'zip')
+  end
+
+  it "to #archive format:tar.bz2" do
+    get("/gitlab/gitlabhq/repository/archive.tar.bz2").should route_to('projects/repositories#archive', project_id: 'gitlab/gitlabhq', format: 'tar.bz2')
+  end
+
   it "to #show" do
     get("/gitlab/gitlabhq/repository").should route_to('projects/repositories#show', project_id: 'gitlab/gitlabhq')
   end