#!/bin/sh
#
# post-merge hook — after `git pull`/merge, refresh the Gitea fallback.
#
# Installed via `scripts/install-git-hooks.sh` (git core.hooksPath = scripts/hooks).
# GitHub merges (e.g. a squash-merged PR) happen server-side, so a local
# `git pull` on prod is the moment to bring the Gitea mirror along.
#
# args: $1 = 1 when the merge was a squash, otherwise 0

if [ "${GRIDLINE_MIRROR_RUNNING:-}" = "1" ]; then
  exit 0
fi

branch="$(git symbolic-ref --short -q HEAD)" || exit 0
case "$branch" in
  prod|main) ;;
  *) exit 0 ;;
esac

root="$(git rev-parse --show-toplevel)" || exit 0
GRIDLINE_MIRROR_RUNNING=1 sh "$root/scripts/mirror-gitea.sh" ||
  echo "post-merge: warning: Gitea mirror was not updated" >&2

exit 0