User:F.trott/Patching Composer-managed extensions on GitHub

First-time Setup

• If the packages were already obtained without specifying the prefer-source flag for composer, delete the "vendor" directory
• From the MW installation directory:
  • Ensure all packages you want to work on are set to install development versions in composer.json
    • Usually you just specify "dev-master" as package version
  • Install everything from source: composer update --prefer-source
• Fork the extension on GitHub.com
• From the extension directory:
  • Add your fork as remote: git remote add fork git@github.com:username/extensionname.git
  • Set your fork as default upstream: git push -u fork

Every time you want to submit a new patch

• From the extension directory:
  • Check out local master branch (if necessary): git checkout master
  • Grab and merge origin remote's master into local: git pull origin master
• Hack away
• From the extension directory:
  • Commit changes: git commit -a
  • Push to fork: git push
• Open a merge request on GitHub.com and hope for the best. Good luck.