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# -*- coding: utf-8 -*-
"""
sphinx.util.osutil
~~~~~~~~~~~~~~~~~~
Operating system-related utility functions for Sphinx.
:copyright: Copyright 2007-2011 by the Sphinx team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import os
import re
import sys
import time
import errno
import shutil
from os import path
# Errnos that we need.
EEXIST = getattr(errno, 'EEXIST', 0)
ENOENT = getattr(errno, 'ENOENT', 0)
EPIPE = getattr(errno, 'EPIPE', 0)
# SEP separates path elements in the canonical file names
#
# Define SEP as a manifest constant, not so much because we expect it to change
# in the future as to avoid the suspicion that a stray "/" in the code is a
# hangover from more *nix-oriented origins.
SEP = "/"
def os_path(canonicalpath):
return canonicalpath.replace(SEP, path.sep)
def relative_uri(base, to):
"""Return a relative URL from ``base`` to ``to``."""
if to.startswith(SEP):
return to
b2 = base.split(SEP)
t2 = to.split(SEP)
# remove common segments
for x, y in zip(b2, t2):
if x != y:
break
b2.pop(0)
t2.pop(0)
return ('..' + SEP) * (len(b2)-1) + SEP.join(t2)
def ensuredir(path):
"""Ensure that a path exists."""
try:
os.makedirs(path)
except OSError, err:
# 0 for Jython/Win32
if err.errno not in [0, EEXIST]:
raise
def walk(top, topdown=True, followlinks=False):
"""Backport of os.walk from 2.6, where the *followlinks* argument was
added.
"""
names = os.listdir(top)
dirs, nondirs = [], []
for name in names:
if path.isdir(path.join(top, name)):
dirs.append(name)
else:
nondirs.append(name)
if topdown:
yield top, dirs, nondirs
for name in dirs:
fullpath = path.join(top, name)
if followlinks or not path.islink(fullpath):
for x in walk(fullpath, topdown, followlinks):
yield x
if not topdown:
yield top, dirs, nondirs
def mtimes_of_files(dirnames, suffix):
for dirname in dirnames:
for root, dirs, files in os.walk(dirname):
for sfile in files:
if sfile.endswith(suffix):
try:
yield path.getmtime(path.join(root, sfile))
except EnvironmentError:
pass
def movefile(source, dest):
"""Move a file, removing the destination if it exists."""
if os.path.exists(dest):
try:
os.unlink(dest)
except OSError:
pass
os.rename(source, dest)
def copytimes(source, dest):
"""Copy a file's modification times."""
st = os.stat(source)
if hasattr(os, 'utime'):
os.utime(dest, (st.st_atime, st.st_mtime))
def copyfile(source, dest):
"""Copy a file and its modification times, if possible."""
shutil.copyfile(source, dest)
try:
# don't do full copystat because the source may be read-only
copytimes(source, dest)
except OSError:
pass
no_fn_re = re.compile(r'[^a-zA-Z0-9_-]')
def make_filename(string):
return no_fn_re.sub('', string)
if sys.version_info < (3, 0):
def ustrftime(format, *args):
# strftime for unicode strings
return time.strftime(unicode(format).encode('utf-8'), *args) \
.decode('utf-8')
else:
ustrftime = time.strftime
|
