diff -r 49a8625b8cac -r 2f7a38f336f4 mercurial/windows.py --- a/mercurial/windows.py Tue Jan 12 15:12:53 2010 +0100 +++ b/mercurial/windows.py Fri Apr 10 21:20:25 2009 +0200 @@ -7,7 +7,7 @@ from i18n import _ import osutil, error -import errno, msvcrt, os, re, sys, random +import errno, msvcrt, os, re, sys, random, subprocess nulldev = 'NUL:' umask = 002 @@ -321,6 +321,37 @@ pass os.rename(src, dst) +def spawndetached(args): + # No standard library function really spawns a fully detached + # process under win32 because they allocate pipes or other objects + # to handle standard streams communications. Passing these objects + # to the child process requires handle inheritance to be enabled + # which makes really detached processes impossible. + class STARTUPINFO: + dwFlags = subprocess.STARTF_USESHOWWINDOW + hStdInput = None + hStdOutput = None + hStdError = None + wShowWindow = subprocess.SW_HIDE + + args = subprocess.list2cmdline(args) + # Not running the command in shell mode makes python26 hang when + # writing to hgweb output socket. + comspec = os.environ.get("COMSPEC", "cmd.exe") + args = comspec + " /c " + args + hp, ht, pid, tid = subprocess.CreateProcess( + None, args, + # no special security + None, None, + # Do not inherit handles + 0, + # DETACHED_PROCESS + 0x00000008, + os.environ, + os.getcwd(), + STARTUPINFO()) + return pid + try: # override functions with win32 versions if possible from win32 import *