Re: Post-receive hook for "git pull"

From: Stefan Monnier <monnier@iro.umontreal.ca>
Date: Feb 12, 2016, 13:39 UTC
Message-ID: <jwvlh6qt5i6.fsf-monnier+gmane.comp.version-control.git@gnu.org>
In-Reply-To: <xmqqio4am3uk.fsf@gitster.mtv.corp.google.com>

Show 9 quoted lines

>> I have a system here where it can be quite common to have thousands of
>> branches in the remote repository, and where I'd like to update some
>> local state according to the appearance of new branches (or updates of
>> pre-existing ones).
>> Currently, I use a "git for-each-ref" after pulling and then check (for
>> each one of those refs) if an update is warranted, but this can get slow
>> with that many branches.  Is there some way to get something like the
>> post-receive hook to be run for "git pull", so that the script gets told
>> directly which (remote tracking) branches have been modified/created?

> I do not think there is.  But you could easily script along the
> lines of...

Show 5 quoted lines

>     #!/bin/sh
>     git for-each-ref | sort >prestate
>     git pull "$@"
>     git for-each-ref | sort >poststate
>     comm -12 prestate poststate

Right, it kinda works, but it can break down in case of concurrent operations.

I really wish there was a way to get something like the post-receive hook to be called everytime new commits are added, regardless if it's due to a push, a pull, a commit, a fast-import, ...

        Stefan