* upstream/master:
Ensure we have a project with a repo in GitlabMarkdownHelper specs
Revert "Make sure TraceReader uses Encoding.default_external"
Make sure TraceReader uses Encoding.default_external
Update CONTRIBUTING.md after merging "up-for-grabs" and "Accepting Merge Requests" [ci skip]
Use `:empty_project` where possible in finder specs
Use `empty_project` where possible in controller specs
Use `:empty_project` where possible in helper specs
Don’t count tasks that are not defined as list items correctly
Use a project factory with a repository where necessary
Use `:empty_project` where possible throughout spec/lib
Use hashrocket for dasherized attribute
Remove markdown file extension and add anchor to link
Fixed builds info link on project settings page
Factories with a project association use `:empty_project` by default
Update enviroments.md the example for deleting an environment is missing the "s" in environments. curl --request DELETE --header "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" "https://gitlab.example.com/api/v3/projects/1/environments/1" wil 404
1. When a merge request is being merged, save the merge commit SHA in
the `in_progress_merge_commit_sha` database column.
2. The `pre-receive` hook looks for any locked (in progress) merge
request with `in_progress_merge_commit_sha` matching the `newrev` it
is passed.
3. If it finds a matching MR, the merge is legitimate.
4. Update `git_access_spec` to test the behaviour we added here. Also
refactored this spec a bit to make it easier to add more contexts / conditions.