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comparison mercurial/patch.py @ 5477:bff41174563f

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Only set mode of new patch if the target file was removed before. If the file is writable by the user, but owned by a different user, the chmod will otherwise fail with "Operation not permitted". Additionally make very sure that the file is only written if either the number of links is <= 1 or the file was successfully removed. Maybe this minimal COW code should be replaced by something from util.
author Thomas Arendsen Hein <thomas@intevation.de>
date Thu, 25 Oct 2007 19:40:56 +0200
parents 9b469bdb1ce1
children 003d1f174fe1
comparison
equal deleted inserted replaced
5476:b3afa6725082 5477:bff41174563f
7 # of the GNU General Public License, incorporated herein by reference. 7 # of the GNU General Public License, incorporated herein by reference.
8 8
9 from i18n import _ 9 from i18n import _
10 from node import * 10 from node import *
11 import base85, cmdutil, mdiff, util, context, revlog, diffhelpers 11 import base85, cmdutil, mdiff, util, context, revlog, diffhelpers
12 import cStringIO, email.Parser, os, popen2, re, sha 12 import cStringIO, email.Parser, os, popen2, re, sha, errno
13 import sys, tempfile, zlib 13 import sys, tempfile, zlib
14 14
15 class PatchError(Exception): 15 class PatchError(Exception):
16 pass 16 pass
17 17
400 if not dest: 400 if not dest:
401 dest = self.fname 401 dest = self.fname
402 st = None 402 st = None
403 try: 403 try:
404 st = os.lstat(dest) 404 st = os.lstat(dest)
405 if st.st_nlink > 1: 405 except OSError, inst:
406 os.unlink(dest) 406 if inst.errno != errno.ENOENT:
407 except: pass 407 raise
408 if st and st.st_nlink > 1:
409 os.unlink(dest)
408 fp = file(dest, 'wb') 410 fp = file(dest, 'wb')
409 if st: 411 if st and st.st_nlink > 1:
410 os.chmod(dest, st.st_mode) 412 os.chmod(dest, st.st_mode)
411 fp.writelines(self.lines) 413 fp.writelines(self.lines)
412 fp.close() 414 fp.close()
413 415
414 def close(self): 416 def close(self):