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comparison mercurial/util.py @ 26450:1138e1d05207

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util.system: compare fileno to see if it needs stdout redirection Future patches will reopen stdout to be line-buffered, so sys.stdout may be different object than sys.__stdout__.
author Yuya Nishihara <yuya@tcha.org>
date Sat, 03 Oct 2015 14:57:24 +0900
parents 127b59787fd5
children a3f7e5461dbd
comparison
equal deleted inserted replaced
26449:89b7a7883aee 26450:1138e1d05207
728 def _sethgexecutable(path): 728 def _sethgexecutable(path):
729 """set location of the 'hg' executable""" 729 """set location of the 'hg' executable"""
730 global _hgexecutable 730 global _hgexecutable
731 _hgexecutable = path 731 _hgexecutable = path
732 732
733 def _isstdout(f):
734 fileno = getattr(f, 'fileno', None)
735 return fileno and fileno() == sys.__stdout__.fileno()
736
733 def system(cmd, environ=None, cwd=None, onerr=None, errprefix=None, out=None): 737 def system(cmd, environ=None, cwd=None, onerr=None, errprefix=None, out=None):
734 '''enhanced shell command execution. 738 '''enhanced shell command execution.
735 run with environment maybe modified, maybe in different dir. 739 run with environment maybe modified, maybe in different dir.
736 740
737 if command fails and onerr is None, return status, else raise onerr 741 if command fails and onerr is None, return status, else raise onerr
763 rc = os.system(cmd) 767 rc = os.system(cmd)
764 else: 768 else:
765 env = dict(os.environ) 769 env = dict(os.environ)
766 env.update((k, py2shell(v)) for k, v in environ.iteritems()) 770 env.update((k, py2shell(v)) for k, v in environ.iteritems())
767 env['HG'] = hgexecutable() 771 env['HG'] = hgexecutable()
768 if out is None or out == sys.__stdout__: 772 if out is None or _isstdout(out):
769 rc = subprocess.call(cmd, shell=True, close_fds=closefds, 773 rc = subprocess.call(cmd, shell=True, close_fds=closefds,
770 env=env, cwd=cwd) 774 env=env, cwd=cwd)
771 else: 775 else:
772 proc = subprocess.Popen(cmd, shell=True, close_fds=closefds, 776 proc = subprocess.Popen(cmd, shell=True, close_fds=closefds,
773 env=env, cwd=cwd, stdout=subprocess.PIPE, 777 env=env, cwd=cwd, stdout=subprocess.PIPE,