mirror of
https://github.com/python/cpython.git
synced 2024-11-28 16:45:42 +01:00
66 lines
1.9 KiB
Python
Executable File
66 lines
1.9 KiB
Python
Executable File
#! /usr/bin/env python
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# Check that all ".pyc" files exist and are up-to-date
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# Uses module 'os'
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import sys
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import os
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from stat import ST_MTIME
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import imp
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def main():
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silent = 0
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verbose = 0
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if sys.argv[1:]:
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if sys.argv[1] == '-v':
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verbose = 1
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elif sys.argv[1] == '-s':
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silent = 1
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MAGIC = imp.get_magic()
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if not silent:
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print 'Using MAGIC word', repr(MAGIC)
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for dirname in sys.path:
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try:
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names = os.listdir(dirname)
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except os.error:
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print 'Cannot list directory', repr(dirname)
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continue
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if not silent:
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print 'Checking ', repr(dirname), '...'
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names.sort()
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for name in names:
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if name[-3:] == '.py':
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name = os.path.join(dirname, name)
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try:
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st = os.stat(name)
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except os.error:
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print 'Cannot stat', repr(name)
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continue
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if verbose:
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print 'Check', repr(name), '...'
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name_c = name + 'c'
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try:
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f = open(name_c, 'r')
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except IOError:
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print 'Cannot open', repr(name_c)
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continue
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magic_str = f.read(4)
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mtime_str = f.read(4)
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f.close()
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if magic_str <> MAGIC:
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print 'Bad MAGIC word in ".pyc" file',
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print repr(name_c)
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continue
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mtime = get_long(mtime_str)
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if mtime == 0 or mtime == -1:
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print 'Bad ".pyc" file', repr(name_c)
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elif mtime <> st[ST_MTIME]:
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print 'Out-of-date ".pyc" file',
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print repr(name_c)
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def get_long(s):
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if len(s) <> 4:
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return -1
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return ord(s[0]) + (ord(s[1])<<8) + (ord(s[2])<<16) + (ord(s[3])<<24)
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main()
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