Flask Github post-receive hook

app.py

@app.route('/post-receive-hook', methods=['GET', 'POST'])
def post_receive_hook():
    if request.method == "POST" and request.form['payload']:
        payload = json.loads(request.form['payload'])
        pprint(payload)
        output = subprocess.Popen('sh /home/user/post-receive-script.sh'.split(), stdout=subprocess.PIPE).communicate()[0]
        print output  # for debugging
        return "Hi!"
    else:
        abort(404)

post-receive-script.sh

cd /home/user/project-git-repo
git reset --hard HEAD
git pull
touch "/etc/uwsgi/apps-available/project.ini"  # restart uwsgi emperor