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guix/etc/git/pre-push
Leo Famulari 69a77ffab2
etc: Git pre-push hook: Don't allow pushes to Savannah.
* etc/git/pre-push: Throw an error when pushing to savannah.gnu.org.

Change-Id: I1fefa4d93daf0f2887168c54a244b9be5d220665
2025-06-08 17:46:34 -04:00

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#!/bin/sh
# This hook script prevents the user from pushing to the project's Git repo if
# any of the new commits' OpenPGP signatures cannot be verified, if a commit is
# signed with an unauthorized key, or if the channel news file is malformed
# (which would break the build).
# Called by "git push" after it has checked the remote status, but before
# anything has been pushed. If this script exits with a non-zero status nothing
# will be pushed.
#
# This hook is called with the following parameters:
#
# $1 -- Name of the remote to which the push is being done
# $2 -- URL to which the push is being done
#
# If pushing without using a named remote those arguments will be equal.
#
# Information about the commits which are being pushed is supplied as lines to
# the standard input in the form:
#
# <local ref> <local sha1> <remote ref> <remote sha1>
# This is the "empty hash" used by Git when pushing a branch deletion.
z40=0000000000000000000000000000000000000000
perform_checks() {
set -e
guix git authenticate
exec make check-channel-news
exit 127
}
main() {
while read local_ref local_hash remote_ref remote_hash
do
# When deleting a remote branch, no commits are pushed to the remote,
# and thus there are no signatures or news updates to be verified.
if [ "$local_hash" != $z40 ]
then
# Skip the hook when performing a pull-request.
case "$remote_ref" in
refs/for/*)
exit 0
;;
esac
# Only perform checks when pushing to upstream.
case "$2" in
*savannah.gnu.org*)
printf "ERROR: The repositories on Savannah are read-only mirrors of our repos at <https://codeberg.org/guix>.\n" 1>&2
exit 1
;;
*.gnu.org*)
perform_checks
;;
# HTTPS Git remote.
*codeberg.org/guix/*)
perform_checks
;;
# SSH Git remote.
*codeberg.org:guix/*)
perform_checks
;;
*)
exit 0
;;
esac
fi
done
exit 0
}
main "$@"