mmcv.utils.path 源代码

# Copyright (c) OpenMMLab. All rights reserved.
import os
import os.path as osp
from pathlib import Path

from .misc import is_str

def is_filepath(x):
    return is_str(x) or isinstance(x, Path)

def fopen(filepath, *args, **kwargs):
    if is_str(filepath):
        return open(filepath, *args, **kwargs)
    elif isinstance(filepath, Path):
        return*args, **kwargs)
    raise ValueError('`filepath` should be a string or a Path')

def check_file_exist(filename, msg_tmpl='file "{}" does not exist'):
    if not osp.isfile(filename):
        raise FileNotFoundError(msg_tmpl.format(filename))

def mkdir_or_exist(dir_name, mode=0o777):
    if dir_name == '':
    dir_name = osp.expanduser(dir_name)
    os.makedirs(dir_name, mode=mode, exist_ok=True)

def symlink(src, dst, overwrite=True, **kwargs):
    if os.path.lexists(dst) and overwrite:
    os.symlink(src, dst, **kwargs)

[文档]def scandir(dir_path, suffix=None, recursive=False): """Scan a directory to find the interested files. Args: dir_path (str | obj:`Path`): Path of the directory. suffix (str | tuple(str), optional): File suffix that we are interested in. Default: None. recursive (bool, optional): If set to True, recursively scan the directory. Default: False. Returns: A generator for all the interested files with relative paths. """ if isinstance(dir_path, (str, Path)): dir_path = str(dir_path) else: raise TypeError('"dir_path" must be a string or Path object') if (suffix is not None) and not isinstance(suffix, (str, tuple)): raise TypeError('"suffix" must be a string or tuple of strings') root = dir_path def _scandir(dir_path, suffix, recursive): for entry in os.scandir(dir_path): if not'.') and entry.is_file(): rel_path = osp.relpath(entry.path, root) if suffix is None or rel_path.endswith(suffix): yield rel_path elif recursive and os.path.isdir(entry.path): # scan recursively if entry.path is a directory yield from _scandir( entry.path, suffix=suffix, recursive=recursive) return _scandir(dir_path, suffix=suffix, recursive=recursive)
def find_vcs_root(path, markers=('.git', )): """Finds the root directory (including itself) of specified markers. Args: path (str): Path of directory or file. markers (list[str], optional): List of file or directory names. Returns: The directory contained one of the markers or None if not found. """ if osp.isfile(path): path = osp.dirname(path) prev, cur = None, osp.abspath(osp.expanduser(path)) while cur != prev: if any(osp.exists(osp.join(cur, marker)) for marker in markers): return cur prev, cur = cur, osp.split(cur)[0] return None
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