Question

Is there a way to trigger a hook after a new branch has been checked out in Git?

Answer 1

If one of these hooks won’t do it I’d be amazed:

https://schacon.github.io/git/githooks.html

Maybe this one:

post-checkout

This hook is invoked when a
git-checkout is run after having
updated the worktree. The hook is
given three parameters: the ref of the
previous HEAD, the ref of the new HEAD
(which may or may not have changed),
and a flag indicating whether the
checkout was a branch checkout
(changing branches, flag=1) or a file
checkout (retrieving a file from the
index, flag=0). This hook cannot
affect the outcome of git-checkout.