DeveloperGuide

Commits

Setting up developer access to the repository: WesnothRepository#Commit_access
Register to commit mailing list: https://mail.gna.org/listinfo/wesnoth-commits or get the list moderator to approve commit messages from you otherwise
Trunk should compile and work after commit
Few small commits are better than a big one (hard to review), so when possible split it in working parts with info about where you are going
Be on #wesnoth-dev IRC channel and coordinate with other developers. Bots report commits and some devs may ask you a question about it.
Don't forget changelogs: changelog for any (significant enough) changes and player_changelog for changes visible to users.
Always check your changes before commit (see WesnothRepository#Reviewing your changes).
Commit message:
- Mention any change, especially if some are unrelated to the main one (but you should use separated commits for this).
- Mention "bug #1234" for automatic cc to that gna bug number
- Mention a developer's IRC name will ping him on IRC (when the bot report it), and if he's not there, he may see it on the IRC logs

Change status of fixed bugs to "Fixed" when committed
Change status of fixed bugs to "Closed" when released, see ReportingBugs#Bug_protocol for details
Check if there is new bugs relevant to your code and if any, assign them to you.