mirror of https://github.com/tLDP/python-tldp
a bunch of filesystem stat()ing functions
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@ -6,13 +6,15 @@ import os
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import io
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import sys
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import errno
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import operator
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import subprocess
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import functools
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from tempfile import mkstemp
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import logging
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def getLogger(**opts):
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level = opts.get('level', logging.INFO)
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level = opts.get('level', logging.DEBUG)
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logging.basicConfig(stream=sys.stderr, level=level)
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logger = logging.getLogger()
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return logger
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@ -24,7 +26,7 @@ def execute(cmd, stdin=None, stdout=None, stderr=None,
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logdir=None, env=os.environ):
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prefix = os.path.basename(cmd[0]) + '.' + str(os.getpid()) + '-'
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if logdir is None:
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if logdir is None:
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raise Exception("Missing required parameter: logdir.")
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if not os.path.isdir(logdir):
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@ -90,5 +92,47 @@ def getfileset(dirname):
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return q
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def statfiles(absdir, fileset):
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statinfo = dict()
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for fname in fileset:
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try:
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statinfo[fname] = os.stat(os.path.join(absdir, fname))
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except OSError as e:
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if e.errno != errno.ENOENT: # -- ho-hum, race condition
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raise e
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return statinfo
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def att_statinfo(statinfo, attr='st_mtime', func=max):
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x = func([getattr(v, attr) for v in statinfo.values()])
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return x
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max_size = functools.partial(att_statinfo, attr='st_size', func=max)
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min_size = functools.partial(att_statinfo, attr='st_size', func=min)
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max_mtime = functools.partial(att_statinfo, attr='st_mtime', func=max)
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min_mtime = functools.partial(att_statinfo, attr='st_mtime', func=min)
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max_ctime = functools.partial(att_statinfo, attr='st_ctime', func=max)
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min_ctime = functools.partial(att_statinfo, attr='st_ctime', func=min)
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max_atime = functools.partial(att_statinfo, attr='st_atime', func=max)
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min_atime = functools.partial(att_statinfo, attr='st_atime', func=min)
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def sieve(operand, statinfo, attr='st_mtime', func=operator.gt):
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result = set()
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for fname, stbuf in statinfo.items():
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if func(getattr(stbuf, attr), operand):
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result.add(fname)
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return result
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mtime_gt = functools.partial(sieve, attr='st_mtime', func=operator.gt)
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mtime_lt = functools.partial(sieve, attr='st_mtime', func=operator.lt)
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size_gt = functools.partial(sieve, attr='st_size', func=operator.gt)
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size_lt = functools.partial(sieve, attr='st_size', func=operator.lt)
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#
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# -- end of file
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