hosts.py 文件源码

def _map_path(self, source):
        result = {}
        cwd = os.getcwd()
        if isinstance(source, (str, path)):
            dest = os.path.abspath(os.path.expanduser(source))
            # we use samefile to avoid problems with case-insensitive file system #522
            # we also use the "cwd" name to avoid wrong case for cwd. For example,
            # if the cwd = '/Users/user/Project'
            # then, dest = '/USERS/USER/PROJECT/a.txt'
            # would be converted to '/Users/user/Project/a.txt' before path mapping
            if os.path.exists(dest[:len(cwd)]) and os.path.samefile(dest[:len(cwd)], cwd):
                dest = cwd + dest[len(cwd):]
            matched = [k for k in self.path_map.keys() if os.path.exists(dest[:len(k)]) and os.path.samefile(dest[:len(k)], k)]
            if matched:
                # pick the longest key that matches
                k = max(matched, key=len)
                dest = self.path_map[k] + dest[len(k):]
            else:
                env.logger.warning(
                    f'Path {source} is not under any specified paths of localhost and is mapped to {dest} on remote host.')
            result[source] = dest.replace('\\', '/')
        elif isinstance(source, (Sequence, set)):
            for src in source:
                result.update(self._map_path(src))
        else:
            env.logger.debug(f'Ignore unmappable source {source}')
            return {source: source}
        return result

    #
    # Interface functions
    #