cpython/Tools/scripts/checkpyc.py

67 lines
2.0 KiB
Python
Raw Normal View History

#! /usr/bin/env python3
1991-12-18 09:38:27 -04:00
# Check that all ".pyc" files exist and are up-to-date
1992-03-30 07:15:26 -04:00
# Uses module 'os'
1991-12-18 09:38:27 -04:00
import sys
1992-03-30 07:15:26 -04:00
import os
1991-12-18 09:38:27 -04:00
from stat import ST_MTIME
import imp
1991-12-18 09:38:27 -04:00
def main():
2001-01-17 04:48:39 -04:00
silent = 0
verbose = 0
if sys.argv[1:]:
if sys.argv[1] == '-v':
verbose = 1
elif sys.argv[1] == '-s':
silent = 1
MAGIC = imp.get_magic()
if not silent:
print('Using MAGIC word', repr(MAGIC))
2001-01-17 04:48:39 -04:00
for dirname in sys.path:
try:
names = os.listdir(dirname)
except os.error:
print('Cannot list directory', repr(dirname))
2001-01-17 04:48:39 -04:00
continue
if not silent:
print('Checking ', repr(dirname), '...')
2001-01-17 04:48:39 -04:00
names.sort()
for name in names:
if name[-3:] == '.py':
name = os.path.join(dirname, name)
try:
st = os.stat(name)
except os.error:
print('Cannot stat', repr(name))
2001-01-17 04:48:39 -04:00
continue
if verbose:
print('Check', repr(name), '...')
2001-01-17 04:48:39 -04:00
name_c = name + 'c'
try:
f = open(name_c, 'r')
except IOError:
print('Cannot open', repr(name_c))
2001-01-17 04:48:39 -04:00
continue
magic_str = f.read(4)
mtime_str = f.read(4)
f.close()
2008-05-16 12:23:30 -03:00
if magic_str != MAGIC:
print('Bad MAGIC word in ".pyc" file', end=' ')
print(repr(name_c))
2001-01-17 04:48:39 -04:00
continue
mtime = get_long(mtime_str)
if mtime == 0 or mtime == -1:
print('Bad ".pyc" file', repr(name_c))
2008-05-16 12:23:30 -03:00
elif mtime != st[ST_MTIME]:
print('Out-of-date ".pyc" file', end=' ')
print(repr(name_c))
1991-12-18 09:38:27 -04:00
def get_long(s):
2008-05-16 12:23:30 -03:00
if len(s) != 4:
2001-01-17 04:48:39 -04:00
return -1
return ord(s[0]) + (ord(s[1])<<8) + (ord(s[2])<<16) + (ord(s[3])<<24)
1991-12-18 09:38:27 -04:00
if __name__ == '__main__':
main()