test_datafs.py 文件源码

def update_and_hash(arch, contents):
    '''
    Save contents to archive ``arch`` and return the DataAPI's hash value
    '''

    f = tempfile.NamedTemporaryFile(delete=False)

    try:
        f.write(contents)
        f.close()

        apihash = arch.api.hash_file(f.name)['checksum']
        arch.update(f.name)

    finally:
        os.remove(f.name)

    return apihash