home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Freelog 116
/
FreelogNo116-JuilletSeptembre2013.iso
/
Bureautique
/
gImageReader
/
gimagereader_0.9-1_win32.exe
/
bin
/
distutils
/
dep_util.pyc
(
.txt
)
< prev
next >
Wrap
Python Compiled Bytecode
|
2011-03-24
|
3KB
|
81 lines
# Source Generated with Decompyle++
# File: in.pyc (Python 2.7)
'''distutils.dep_util
Utility functions for simple, timestamp-based dependency of files
and groups of files; also, function based entirely on such
timestamp dependency analysis.'''
__revision__ = '$Id: dep_util.py 76746 2009-12-10 15:29:03Z tarek.ziade $'
import os
from distutils.errors import DistutilsFileError
def newer(source, target):
'''Tells if the target is newer than the source.
Return true if \'source\' exists and is more recently modified than
\'target\', or if \'source\' exists and \'target\' doesn\'t.
Return false if both exist and \'target\' is the same age or younger
than \'source\'. Raise DistutilsFileError if \'source\' does not exist.
Note that this test is not very accurate: files created in the same second
will have the same "age".
'''
if not os.path.exists(source):
raise DistutilsFileError("file '%s' does not exist" % os.path.abspath(source))
if not os.path.exists(target):
return True
return None.stat(source).st_mtime > os.stat(target).st_mtime
def newer_pairwise(sources, targets):
"""Walk two filename lists in parallel, testing if each source is newer
than its corresponding target. Return a pair of lists (sources,
targets) where source is newer than target, according to the semantics
of 'newer()'.
"""
if len(sources) != len(targets):
raise ValueError, "'sources' and 'targets' must be same length"
n_sources = []
n_targets = []
for source, target in zip(sources, targets):
if newer(source, target):
n_sources.append(source)
n_targets.append(target)
continue
return (n_sources, n_targets)
def newer_group(sources, target, missing = 'error'):
'''Return true if \'target\' is out-of-date with respect to any file
listed in \'sources\'.
In other words, if \'target\' exists and is newer
than every file in \'sources\', return false; otherwise return true.
\'missing\' controls what we do when a source file is missing; the
default ("error") is to blow up with an OSError from inside \'stat()\';
if it is "ignore", we silently drop any missing source files; if it is
"newer", any missing source files make us assume that \'target\' is
out-of-date (this is handy in "dry-run" mode: it\'ll make you pretend to
carry out commands that wouldn\'t work because inputs are missing, but
that doesn\'t matter because you\'re not actually going to run the
commands).
'''
if not os.path.exists(target):
return True
target_mtime = None.stat(target).st_mtime
for source in sources:
if not os.path.exists(source):
if missing == 'error':
pass
elif missing == 'ignore':
continue
elif missing == 'newer':
return True
if os.stat(source).st_mtime > target_mtime:
return True
return False