Merge Request on forked projects

The good:

 - You can do a merge request for a forked commit and it will merge properly (i.e. it does work).
 - Push events take into account merge requests on forked projects
 - Tests around merge_actions now present, spinach, and other rspec tests
 - Satellites now clean themselves up rather then recreate

The questionable:

 - Events only know about target projects
 - Project's merge requests only hold on to MR's where they are the target
 - All operations performed in the satellite

The bad:

  -  Duplication between project's repositories and satellites (e.g. commits_between)

(for reference: http://feedback.gitlab.com/forums/176466-general/suggestions/3456722-merge-requests-between-projects-repos)

Fixes:

Make test repos/satellites only create when needed
-Spinach/Rspec now only initialize test directory, and setup stubs (things that are relatively cheap)
-project_with_code, source_project_with_code, and target_project_with_code now create/destroy their repos individually
-fixed remote removal
-How to merge renders properly
-Update emails to show project/branches
-Edit MR doesn't set target branch
-Fix some failures on editing/creating merge requests, added a test
-Added back a test around merge request observer
-Clean up project_transfer_spec, Remove duplicate enable/disable observers
-Ensure satellite lock files are cleaned up, Attempted to add some testing around these as well
-Signifant speed ups for tests
-Update formatting ordering in notes_on_merge_requests
-Remove wiki schema update
Fixes for search/search results
-Search results was using by_project for a list of projects, updated this to use in_projects
-updated search results to reference the correct (target) project
-udpated search results to print both sides of the merge request

Change-Id: I19407990a0950945cc95d62089cbcc6262dab1a8

1 files changed, 9 insertions, 4 deletions

diff --git a/lib/api/merge_requests.rb b/lib/api/merge_requests.rb
index 861a4f4d159..72fdb774fc1 100644
--- a/lib/api/merge_requests.rb
+++ b/lib/api/merge_requests.rb
@@ -51,9 +51,10 @@ module API
       #
       # Parameters:
       #
-      #   id (required)            - The ID of a project
+      #   id (required)            - The ID of a project - this will be the source of the merge request
       #   source_branch (required) - The source branch
       #   target_branch (required) - The target branch
+      #   target_project           - The target project of the merge request defaults to the :id of the project
       #   assignee_id              - Assignee user ID
       #   title (required)         - Title of MR
       #
@@ -63,11 +64,15 @@ module API
       post ":id/merge_requests" do
         authorize! :write_merge_request, user_project
         required_attributes! [:source_branch, :target_branch, :title]
-
-        attrs = attributes_for_keys [:source_branch, :target_branch, :assignee_id, :title]
+        attrs = attributes_for_keys [:source_branch, :target_branch, :assignee_id, :title, :target_project_id]
         merge_request = user_project.merge_requests.new(attrs)
         merge_request.author = current_user
-
+        merge_request.source_project = user_project
+        if !attrs[:target_project_id].nil? && user_project.forked? && user_project.forked_from_project.id.to_s == attrs[:target_project_id]
+          merge_request.target_project = Project.find_by_id(attrs[:target_project_id])
+        elsif attrs[:target_project].nil?
+          merge_request.target_project = user_project
+        end
         if merge_request.save
           merge_request.reload_code
           present merge_request, with: Entities::MergeRequest