#!/bin/bash
#
# Sample git post-receive hook for /srv/git/prism-v2.git on the VPS.
#
# Install:
#   sudo cp /var/www/prism-v2/scripts/post-receive.sample /srv/git/prism-v2.git/hooks/post-receive
#   sudo chmod +x /srv/git/prism-v2.git/hooks/post-receive
#
# Required sudoers entry so the git user can restart services without a password.
# Adjust GIT_USER if your git is owned by a different account.
#   GIT_USER ALL=(root) NOPASSWD: /var/www/prism-v2/scripts/deploy.sh

set -euo pipefail

BRANCH="master"
WEB_DIR="/var/www/prism-v2"
GIT_DIR="/srv/git/prism-v2.git"
LOG="/var/log/git-deploy.log"

exec >> "$LOG" 2>&1

while read -r oldrev newrev refname; do
    if [ "$refname" = "refs/heads/$BRANCH" ]; then
        echo "$(date -Is): Checking out $BRANCH to $WEB_DIR"
        sudo -u www-data git --work-tree="$WEB_DIR" --git-dir="$GIT_DIR" checkout -f "$BRANCH"

        echo "$(date -Is): Running deploy.sh"
        sudo "$WEB_DIR/scripts/deploy.sh"

        echo "$(date -Is): Done."
    fi
done