How do I find if a branch has been merged to any branch (not just a specific one)

Question

I'm trying to clean up some branches in a fairly large project. We essentially have master, a bunch of release branches (of which only the most recent is maintained), and feature/bug fix branches off each release.

The process is normally bugfix/feature-branch -> current-release-branch -> master

Now I can see there's quite a few old feature/bugfix branches that are ahead of master - but what I want to do is find if they were at least merged to a release branch.

Then I can at least clean up all feature/bugfix branches which have been merged to release branches, leaving me to only manually work out a) what's missing in master that's on release-branches, and b) any feature branches that were never merged at all.

Answer 1

git branch -a --merged {commit} to list all branches that are reachable from specified commit --no-merged to list all non reachable branches

That's what you need.

http://git-scm.com/docs/git-branch

"With --contains, shows only the branches that contain the named commit (in other words, the branches whose tip commits are descendants of the named commit). With --merged, only branches merged into the named commit (i.e. the branches whose tip commits are reachable from the named commit) will be listed. With --no-merged only branches not merged into the named commit will be listed. If the argument is missing it defaults to HEAD (i.e. the tip of the current branch)."

Answer 2

As simple as

git branch -a --contains <id>

Where <id> might be a changeset iв, a tag name or a branch name