First try

hooks/update_site.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# This script is invoked by adnanh/webhook when a matching hook is triggered.
+# It updates the git checkout in /app/site to origin/$GIT_BRANCH.
+# Hugo server runs separately and watches the files, so no explicit hugo build is required.
+
+REPO_DIR="/app/site"
+GIT_BRANCH="${GIT_BRANCH:-main}"
+
+if [ ! -d "$REPO_DIR/.git" ]; then
+  echo "Repository not found at $REPO_DIR; nothing to update."
+  exit 1
+fi
+
+echo "Updating repository in $REPO_DIR to origin/$GIT_BRANCH"
+cd "$REPO_DIR"
+
+# Fetch and reset
+git fetch origin "$GIT_BRANCH" --depth=1 || true
+git reset --hard "origin/$GIT_BRANCH"
+
+# Optionally, you can clear caches or perform other tasks here.
+echo "Update completed at $(date -u +%Y-%m-%dT%H:%M:%SZ)"
+exit 0