OpenProject plugin makes integration with Gitlab:

• creates Merge Request on changing task status to defined as 'merger request' (you can define trigger task by your own)
• sends message to OpenProject after Merge Request in GinLab merged to master

Branch in GitLab should looks like:

:branchname_:taskid

e.g. mybranch_12, dev_1234, etc.

taskid - used to find corresponded work package in OpenProject.

To include the new plugin into OpenProject, you have to add it into Gemfile.plugins like any other OpenProject plugin.

group :opf_plugins do
  gem "openproject-pm2gitlab", git: "https://github.com/zaproo/pm2gitlab.git", :branch => "master"
end

After that run

bundle install
rake db:migrate

More information about OpenProject plugins you can get here.

After installing plugin go to administration plugins page and set up your base gitlab url, access token, tokens for incoming hooks and openproject to gitlab user map table. You should also fill in specific settings for each project.

• sends message to task after Merge Request merged to master in GitLab

http://[your-openproject-domain]/pm2gitlab/merge_request