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- # Source Generated with Decompyle++
- # File: in.pyo (Python 2.4)
-
- '''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,v 1.7 2004/11/10 22:23:14 loewis Exp $'
- import os
- from distutils.errors import DistutilsFileError
-
- def newer(source, target):
- """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.
- """
- if not os.path.exists(source):
- raise DistutilsFileError, "file '%s' does not exist" % source
-
- if not os.path.exists(target):
- return 1
-
- ST_MTIME = ST_MTIME
- import stat
- mtime1 = os.stat(source)[ST_MTIME]
- mtime2 = os.stat(target)[ST_MTIME]
- return mtime1 > mtime2
-
-
- 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 i in range(len(sources)):
- if newer(sources[i], targets[i]):
- n_sources.append(sources[i])
- n_targets.append(targets[i])
- 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- '''Return true if \'target\' is out-of-date with respect to any file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- out-of-date (this is handy in "dry-run" mode: it\'ll make you pretend to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 1
-
- ST_MTIME = ST_MTIME
- import stat
- target_mtime = os.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 1
-
-
- source_mtime = os.stat(source)[ST_MTIME]
- if source_mtime > target_mtime:
- return 1
- continue
- else:
- return 0
-
-