Setup global git hooks that forward to local hooks

setup-global-git-hooks.sh

#!/bin/sh
# This script sets up global git hooks (for global actions), that by default forward to local repository hooks if they exist.
# You can then edit these global hooks (make sure to keep the forwarding logic !)

HOOKS="applypatch-msg fsmonitor-watchman prepare-commit-msg pre-receive update post-update pre-commit pre-push push-to-checkout commit-msg pre-applypatch pre-merge-commit pre-rebase sendemail-validate"
HOOKS_DIR="$HOME/.config/git/hooks"

mkdir -p "$HOOKS_DIR"
git config --global core.hooksPath "$HOOKS_DIR"

for hook in $HOOKS; do
    if [ -f "$HOOKS_DIR/$hook" ]; then
        echo "Warning: $HOOKS_DIR/$hook already exists, skipping..."
        continue
    fi

DATA='''#!/bin/sh
# Keep this snippet after your global hook. It will have no effect (but not crash) if set in local hooks
LOCAL_HOOK=$(realpath ./.git/hooks/$(basename "$0"))
if [ -x "$LOCAL_HOOK" ] && [ "$LOCAL_HOOK" != "$(realpath $0)" ]; then
"$LOCAL_HOOK" "$@"
fi
'''

    echo "$DATA" > "$HOOKS_DIR/$hook"
    chmod +x "$HOOKS_DIR/$hook"
done

echo "Global git hooks have been set up in $HOOKS_DIR"