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git-receive-pack - Receive what is pushed into it
'git-receive-pack' <directory>
Invoked by 'git-send-pack' and updates the repository with the
information fed from the remote end.
This command is usually not invoked directly by the end user.
The UI for the protocol is on the 'git-send-pack' side, and the
program pair is meant to be used to push updates to remote
repository. For pull operations, see 'git-fetch-pack'.
The command allows for creation and fast forwarding of sha1 refs
(heads/tags) on the remote end (strictly speaking, it is the
local end receive-pack runs, but to the user who is sitting at
the send-pack end, it is updating the remote. Confused?)
and executable, it is called with three parameters:
object names for the refname before and after the update. Note
should match what is recorded in refname.
The hook should exit with non-zero status if it wants to
disallow updating the named ref. Otherwise it should exit with
Using this hook, it is easy to generate mails on updates to
the local repository. This example script sends a mail with
the commits pushed to the repository:
# mail out commit update information.
echo "Created a new ref, with the following commits:"
git-rev-list --pretty "$2"
echo "New commits:"
git-rev-list --pretty "$3" "^$2"
fi |
mail -s "Changes to ref $1" commit-list@mydomain
exit 0
Another hook $GIT_DIR/hooks/post-update, if exists and
executable, is called with the list of refs that have been
updated. This can be used to implement repository wide cleanup
task if needed. The exit code from this hook invocation is
ignored; the only thing left for git-receive-pack to do at that
point is to exit itself anyway. This hook can be used, for
example, to run "git-update-server-info" if the repository is
packed and is served via a dumb transport.
exec git-update-server-info
There are other real-world examples of using update and
post-update hooks found in the Documentation/howto directory.
The repository to sync into.
Written by Linus Torvalds <>
Documentation by Junio C Hamano.
Part of the gitlink:git[7] suite