visualstudio_py_debugger.py 文件源码

def breakpoint_path_match(vs_path, local_path):
    vs_path_norm = path.normcase(vs_path)
    local_path_norm = path.normcase(local_path)
    if local_path_to_vs_path.get(local_path_norm) == vs_path_norm:
        return True

    # Walk the local filesystem from local_path up, matching agains win_path component by component,
    # and stop when we no longer see an __init__.py. This should give a reasonably close approximation
    # of matching the package name.
    while True:
        local_path, local_name = path.split(local_path)
        vs_path, vs_name = ntpath.split(vs_path)
        # Match the last component in the path. If one or both components are unavailable, then
        # we have reached the root on the corresponding path without successfully matching.
        if not local_name or not vs_name or path.normcase(local_name) != path.normcase(vs_name):
            return False
        # If we have an __init__.py, this module was inside the package, and we still need to match
        # thatpackage, so walk up one level and keep matching. Otherwise, we've walked as far as we
        # needed to, and matched all names on our way, so this is a match.
        if not path.exists(path.join(local_path, '__init__.py')):
            break

    local_path_to_vs_path[local_path_norm] = vs_path_norm
    return True