mirror of
https://github.com/python/cpython.git
synced 2025-10-30 18:07:37 +00:00
baf0603493
Sjoerd writes: This version of freeze creates one file per Python module, instead of one humongous file for all Python modules. bkfile: new module to used to write files with backups. No new file is produced if the new contents is identical to the old. New option "-x excluded-module" for modulefinder test program. New option "-i filename" for freeze main program to include a list of options in place of the -i option.
50 lines
1.4 KiB
Python
50 lines
1.4 KiB
Python
_orig_open = open
|
|
|
|
class _BkFile:
|
|
def __init__(self, file, mode, bufsize):
|
|
import os
|
|
self.__filename = file
|
|
self.__backup = file + '~'
|
|
try:
|
|
os.unlink(self.__backup)
|
|
except os.error:
|
|
pass
|
|
try:
|
|
os.rename(file, self.__backup)
|
|
except os.error:
|
|
self.__backup = None
|
|
self.__file = _orig_open(file, mode, bufsize)
|
|
self.closed = self.__file.closed
|
|
self.fileno = self.__file.fileno
|
|
self.flush = self.__file.flush
|
|
self.isatty = self.__file.isatty
|
|
self.mode = self.__file.mode
|
|
self.name = self.__file.name
|
|
self.read = self.__file.read
|
|
self.readinto = self.__file.readinto
|
|
self.readline = self.__file.readline
|
|
self.readlines = self.__file.readlines
|
|
self.seek = self.__file.seek
|
|
self.softspace = self.__file.softspace
|
|
self.tell = self.__file.tell
|
|
self.truncate = self.__file.truncate
|
|
self.write = self.__file.write
|
|
self.writelines = self.__file.writelines
|
|
|
|
def close(self):
|
|
self.__file.close()
|
|
if self.__backup is None:
|
|
return
|
|
import cmp
|
|
# don't use cmp.cmp because of NFS bugs :-( and
|
|
# anyway, the stat mtime values differ so do_cmp will
|
|
# most likely be called anyway
|
|
if cmp.do_cmp(self.__backup, self.__filename):
|
|
import os
|
|
os.unlink(self.__filename)
|
|
os.rename(self.__backup, self.__filename)
|
|
|
|
def open(file, mode = 'r', bufsize = -1):
|
|
if 'w' not in mode:
|
|
return _orig_open(file, mode, bufsize)
|
|
return _BkFile(file, mode, bufsize)
|