Simple dump task for fabric

fabile.py

# Simple environment
env.project_name = 'my_project'
env.project_path = '/home/user/{project_name}'.format(**env)
env.environment = 'dev'  # 'dev' || 'prod'
env.dump_path = '{project_path}/db'.format(**env)

@task
def dump(filename=None):
    """Generate and download a db dump."""
    # ensure remote dump_path exists
    run("mkdir -p {}".format(env.dump_path))

    # build filename
    import time
    timestamp = time.strftime("%Y%m%d-%H%M%S", time.gmtime())
    filename = filename or "db_{}.dump".format(timestamp)

    # generate dump
    filepath = '{}/{}'.format(env.dump_path, filename)
    cmd('pg_dump {} > {}'.format(env.project_name, filepath))

    # download dump
    get(remote_path=filepath, local_path='db/{}/{}'.format(env.environment,
                                                           filename))