Mercurial > hg > mercurial-crew-with-dirclash

comparison mercurial/util.py @ 2237:4a069064a39b

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reduce memory used by util.opener when making a temp copy of a file.
author Vadim Gelfer <vadim.gelfer@gmail.com>
date Tue, 09 May 2006 11:12:45 -0700
parents 6d3cc2a982f3
children 45aef5ddcdbe 20cf545b4725
comparison
equal deleted inserted replaced
2236:d7f866789d7e 2237:4a069064a39b
683 683
684 def mktempcopy(name): 684 def mktempcopy(name):
685 d, fn = os.path.split(name) 685 d, fn = os.path.split(name)
686 fd, temp = tempfile.mkstemp(prefix='.%s-' % fn, dir=d) 686 fd, temp = tempfile.mkstemp(prefix='.%s-' % fn, dir=d)
687 os.close(fd) 687 os.close(fd)
688 fp = posixfile(temp, "wb") 688 ofp = posixfile(temp, "wb")
689 try: 689 try:
690 try: 690 try:
691 s = posixfile(name, "rb").read() 691 ifp = posixfile(name, "rb")
692 except IOError, inst: 692 except IOError, inst:
693 if not getattr(inst, 'filename', None): 693 if not getattr(inst, 'filename', None):
694 inst.filename = name 694 inst.filename = name
695 raise 695 raise
696 fp.write(s) 696 for chunk in filechunkiter(ifp):
697 ofp.write(chunk)
698 ifp.close()
699 ofp.close()
697 except: 700 except:
698 try: os.unlink(temp) 701 try: os.unlink(temp)
699 except: pass 702 except: pass
700 raise 703 raise
701 fp.close()
702 st = os.lstat(name) 704 st = os.lstat(name)
703 os.chmod(temp, st.st_mode) 705 os.chmod(temp, st.st_mode)
704 return temp 706 return temp
705 707
706 class atomictempfile(posixfile): 708 class atomictempfile(posixfile):