cockpit/tools/git-hook-pre-push

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#!/bin/sh
set -eu
if [ -t 2 ]; then
red="\e[1;31m"
green="\e[1;32m"
blue="\e[1;34m"
grey="\e[0m"
else
red=""
green=""
blue=""
grey=""
fi
post_commit_hook="$(realpath -m "$0"/../git-hook-post-commit)"
fail=''
# cf. man 5 githooks
# <local ref> SP <local object name> SP <remote ref> SP <remote object name> LF
while read local_ref local_object_name remote_ref remote_object_name; do
# never check commits already on origin
opts='^origin'
# if we have the commit that the remote branch pointed to before, exclude it as well
opts="${opts} $(git rev-parse --not --quiet --verify "${remote_object_name}^{commit}" || true)"
# check the object being pushed (if it's not null)
opts="${opts} $(git rev-parse --quiet --verify "${local_object_name}^{commit}" || true)"
# compute the list of commits to check
commits="$(git rev-list ${opts})"
[ -z "${commits}" ] && continue
printf "${blue}Performing pre-push checks for %s:${grey}\n" "${remote_ref}" >&2
for commit in ${commits}; do
subject="$(git show --no-patch --format='%h %s' "${commit}" --)"
if output="$("${post_commit_hook}" "${commit}")" && test -z "${output}"; then
printf " - ${green}%s${grey}\n" "${subject}"
else
printf " - ${red}%s${grey}${output:+:}\n" "${subject}"
printf "%s" "${output}" | sed 's/^/ /;$a\\'
fail=1
fi
done
done
exit "${fail:-0}"