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Viewing changes to bzrlib/osutils.py

  • Committer: Canonical.com Patch Queue Manager
  • Date: 2006-02-22 07:59:56 UTC
  • mfrom: (1553.5.33 bzr.mbp.locks)
  • Revision ID: pqm@pqm.ubuntu.com-20060222075956-fb281c427e571da6
add LockDir and related fixes

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bzrlib/osutils.py
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    import random
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    base = os.path.basename(new)
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    dirname = os.path.dirname(new)
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    tmp_name = u'tmp.%s.%.9f.%d.%d' % (base, time.time(), os.getpid(), random.randint(0, 0x7FFFFFFF))
 
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    tmp_name = u'tmp.%s.%.9f.%d.%s' % (base, time.time(), os.getpid(), rand_chars(10))
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    tmp_name = pathjoin(dirname, tmp_name)
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    # Rename the file out of the way, but keep track if it didn't exist
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    """Return size of given open file."""
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    return os.fstat(f.fileno())[ST_SIZE]
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# Define rand_bytes based on platform.
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try:
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    # Python 2.4 and later have os.urandom,
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                n -= 1
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            return s
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ALNUM = '0123456789abcdefghijklmnopqrstuvwxyz'
 
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def rand_chars(num):
 
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    """Return a random string of num alphanumeric characters
 
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    The result only contains lowercase chars because it may be used on 
 
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    case-insensitive filesystems.
 
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    """
 
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    s = ''
 
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    for raw_byte in rand_bytes(num):
 
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        s += ALNUM[ord(raw_byte) % 36]
 
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    return s
 
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## TODO: We could later have path objects that remember their list
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## decomposition (might be too tricksy though.)
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