On 28/04/2014 10:09, Johan Herland wrote:
On Mon, Apr 28, 2014 at 11:01 AM, Jeremy Morton<ad...@game-point.net>  wrote:
On 28/04/2014 07:45, Christian Couder wrote:
Yes, it's possible. Yesterday, I sent the following patch:

[RFC/PATCH 2/2] trailer: add examples to the documentation

and it shows a commit-msg hook to do something like that:

$ cat>.git/hooks/commit-msg<<EOF
git interpret-trailers --trim-empty --trailer "git-version: \$(git
describe)" "\$1">   "\$1.new"
mv "\$1.new" "\$1"
$ chmod +x .git/hooks/commit-msg

I think you just need to use the following if you want the branch
instead of the git version:

git interpret-trailers --trim-empty --trailer "git-branch: \$(git name-rev
--name-only HEAD)" "\$1">   "\$1.new"

It could even be simpler if there was an option (which has already
been discussed) that made it possible to modify the file in
place. This way one would not need the 'mv "\$1.new" "\$1"' command.

This is certainly going in the right direction, but it's still implemented
as a hook on a per-repo basis.  Do you foresee a point in the future where
these trailers could be added through simple one-liners in someone's global
.gitconfig file?  That's where I'd really like to get to.

It's a hack, but it works surprisingly well in practice (assuming that
you and your co-workers all agree that this is an acceptable

  1. Write the hook script and add it to your project (in a git-hooks
subdir or something)

  2. Add a post-checkout hook to install the first hook and the
post-checkout hook itself into the user's .git/hooks/ dir.

  3. Tell your co-workers to run the post-checkout hook script manually
the first time. After that, the script should take care of updating
itself and any hooks that you add to the project.


I don't understand why the co-workers need to run the post-checkout hook script manually the first time?

Best regards,
Jeremy Morton (Jez)
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