ci/util.py

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#
#   http://www.apache.org/licenses/LICENSE-2.0
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import os
import contextlib

def get_mxnet_root() -> str:
    curpath = os.path.abspath(os.path.dirname(__file__))

    def is_mxnet_root(path: str) -> bool:
        return os.path.exists(os.path.join(path, ".mxnet_root"))

    while not is_mxnet_root(curpath):
        parent = os.path.abspath(os.path.join(curpath, os.pardir))
        if parent == curpath:
            raise RuntimeError("Got to the root and couldn't find a parent folder with .mxnet_root")
        curpath = parent
    return curpath

@contextlib.contextmanager
def remember_cwd():
    '''
    Restore current directory when exiting context
    '''
    curdir = os.getcwd()
    try: yield
    finally: os.chdir(curdir)