mirror of
https://github.com/Sneed-Group/Poodletooth-iLand
synced 2024-12-25 12:42:41 -06:00
42 lines
1.1 KiB
Python
42 lines
1.1 KiB
Python
|
"""Read and cache directory listings.
|
||
|
|
|
||
|
|
The listdir() routine returns a sorted list of the files in a directory,
|
||
|
|
using a cache to avoid reading the directory more often than necessary.
|
||
|
|
The annotate() routine appends slashes to directories."""
|
||
|
|
from warnings import warnpy3k
|
||
|
|
warnpy3k("the dircache module has been removed in Python 3.0", stacklevel=2)
|
||
|
|
del warnpy3k
|
||
|
|
|
||
|
|
import os
|
||
|
|
|
||
|
|
__all__ = ["listdir", "opendir", "annotate", "reset"]
|
||
|
|
|
||
|
|
cache = {}
|
||
|
|
|
||
|
|
def reset():
|
||
|
|
"""Reset the cache completely."""
|
||
|
|
global cache
|
||
|
|
cache = {}
|
||
|
|
|
||
|
|
def listdir(path):
|
||
|
|
"""List directory contents, using cache."""
|
||
|
|
try:
|
||
|
|
cached_mtime, list = cache[path]
|
||
|
|
del cache[path]
|
||
|
|
except KeyError:
|
||
|
|
cached_mtime, list = -1, []
|
||
|
|
mtime = os.stat(path).st_mtime
|
||
|
|
if mtime != cached_mtime:
|
||
|
|
list = os.listdir(path)
|
||
|
|
list.sort()
|
||
|
|
cache[path] = mtime, list
|
||
|
|
return list
|
||
|
|
|
||
|
|
opendir = listdir # XXX backward compatibility
|
||
|
|
|
||
|
|
def annotate(head, list):
|
||
|
|
"""Add '/' suffixes to directories."""
|
||
|
|
for i in range(len(list)):
|
||
|
|
if os.path.isdir(os.path.join(head, list[i])):
|
||
|
|
list[i] = list[i] + '/'
|