charm_helpers_sync.py 文件源码

def sync(src, dest, module, opts=None):

    # Sync charmhelpers/__init__.py for bootstrap code.
    sync_pyfile(_src_path(src, '__init__'), dest)

    # Sync other __init__.py files in the path leading to module.
    m = []
    steps = module.split('.')[:-1]
    while steps:
        m.append(steps.pop(0))
        init = '.'.join(m + ['__init__'])
        sync_pyfile(_src_path(src, init),
                    os.path.dirname(_dest_path(dest, init)))

    # Sync the module, or maybe a .py file.
    if os.path.isdir(_src_path(src, module)):
        sync_directory(_src_path(src, module), _dest_path(dest, module), opts)
    elif _is_pyfile(_src_path(src, module)):
        sync_pyfile(_src_path(src, module),
                    os.path.dirname(_dest_path(dest, module)))
    else:
        logging.warn('Could not sync: %s. Neither a pyfile or directory, '
                     'does it even exist?' % module)