Hooks

[Jelmer Vernooij]

On Fri, Dec 11, 2020 at 02:51:20PM +0000, Sam Bull wrote:
> Can anybody provide an example of some simple hooks?
> 
> I tried looking at documentation, but didn't get anywhere.
> 
> For example, a pre-commit hook which returns false and blocks the commit and a
> hook that runs an arbitrary command after a pull/merge would be great.

Was the documentation that you looked at
https://www.breezy-vcs.org/doc/en/user-guide/hooks.html ?

You should be able to raise an exception from a pre-commit hook to
prevent the commit from going through.

There is a 'post_merge' hook that gets run after merge operations,
which gets called with a Merger object.

Something like this should work:

import breezy.merge

def merge_hook(merger):
    subprocess.check_call("arbitrary command", cwd=merger.working_tree.basedir)

breezy.merge.Merger.hooks.install_named_hook('post_merge', merge_hook)

Jelmer

-- 
Jelmer Vernooij <jelmer at jelmer.uk>
PGP Key: https://www.jelmer.uk/D729A457.asc