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comparison mercurial/util.py @ 1609:c50bddfbc812

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eliminate backtrace when piping output on windows. this fixes issue 54.
author Vadim Gelfer <vadim.gelfer@gmail.com>
date Mon, 02 Jan 2006 15:25:33 -0800
parents a329e0fda2ae
children 84e9b3484ff6
comparison
equal deleted inserted replaced
1608:722fd16f6f8c 1609:c50bddfbc812
11 """ 11 """
12 12
13 import os, errno 13 import os, errno
14 from i18n import gettext as _ 14 from i18n import gettext as _
15 from demandload import * 15 from demandload import *
16 demandload(globals(), "re cStringIO shutil popen2 sys tempfile threading time") 16 demandload(globals(), "cStringIO errno popen2 re shutil sys tempfile")
17 demandload(globals(), "threading time")
17 18
18 def pipefilter(s, cmd): 19 def pipefilter(s, cmd):
19 '''filter string S through command CMD, returning its output''' 20 '''filter string S through command CMD, returning its output'''
20 (pout, pin) = popen2.popen2(cmd, -1, 'b') 21 (pout, pin) = popen2.popen2(cmd, -1, 'b')
21 def writer(): 22 def writer():
440 441
441 # Platform specific variants 442 # Platform specific variants
442 if os.name == 'nt': 443 if os.name == 'nt':
443 demandload(globals(), "msvcrt") 444 demandload(globals(), "msvcrt")
444 nulldev = 'NUL:' 445 nulldev = 'NUL:'
445 446
447 class winstdout:
448 '''stdout on windows misbehaves if sent through a pipe'''
449
450 def __init__(self, fp):
451 self.fp = fp
452
453 def __getattr__(self, key):
454 return getattr(self.fp, key)
455
456 def close(self):
457 try:
458 self.fp.close()
459 except: pass
460
461 def write(self, s):
462 try:
463 return self.fp.write(s)
464 except IOError, inst:
465 if inst.errno != 0: raise
466 self.close()
467 raise IOError(errno.EPIPE, 'Broken pipe')
468
469 sys.stdout = winstdout(sys.stdout)
470
446 try: 471 try:
447 import win32api, win32process 472 import win32api, win32process
448 filename = win32process.GetModuleFileNameEx(win32api.GetCurrentProcess(), 0) 473 filename = win32process.GetModuleFileNameEx(win32api.GetCurrentProcess(), 0)
449 systemrc = os.path.join(os.path.dirname(filename), 'mercurial.ini') 474 systemrc = os.path.join(os.path.dirname(filename), 'mercurial.ini')
450 475
451 except ImportError: 476 except ImportError:
452 systemrc = r'c:\mercurial\mercurial.ini' 477 systemrc = r'c:\mercurial\mercurial.ini'
453 pass 478 pass
454 479
455 rcpath = (systemrc, 480 rcpath = (systemrc,