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comparison mercurial/util.py @ 7106:4674706b5b95

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python2.6: use subprocess if available
author Dirkjan Ochtman <dirkjan@ochtman.nl>
date Sun, 05 Oct 2008 21:35:26 +0200
parents 11229144aa01
children 619ebf82cef2
comparison
equal deleted inserted replaced
7105:31837416ef4d 7106:4674706b5b95
46 _sha1 = hashlib.sha1 46 _sha1 = hashlib.sha1
47 except ImportError: 47 except ImportError:
48 import sha 48 import sha
49 _sha1 = sha.sha 49 _sha1 = sha.sha
50 return _sha1(s) 50 return _sha1(s)
51
52 try:
53 import subprocess
54 def popen2(cmd, mode='t', bufsize=-1):
55 p = subprocess.Popen(cmd, shell=True, bufsize=bufsize, close_fds=True,
56 stdin=subprocess.PIPE, stdout=subprocess.PIPE)
57 return p.stdin, p.stdout
58 def popen3(cmd, mode='t', bufsize=-1):
59 p = subprocess.Popen(cmd, shell=True, bufsize=bufsize, close_fds=True,
60 stdin=subprocess.PIPE, stdout=subprocess.PIPE,
61 stderr=subprocess.PIPE)
62 return p.stdin, p.stdout, p.stderr
63 def Popen3(cmd, capturestderr=False, bufsize=-1):
64 stderr = capturestderr and subprocess.PIPE or None
65 p = subprocess.Popen(cmd, shell=True, bufsize=bufsize, close_fds=True,
66 stdin=subprocess.PIPE, stdout=subprocess.PIPE,
67 stderr=stderr)
68 p.fromchild = p.stdout
69 p.tochild = p.stdin
70 p.childerr = p.stderr
71 return p
72 except ImportError:
73 subprocess = None
74 import popen2 as _popen2
75 popen2 = _popen2.popen2
76 Popen3 = _popen2.Popen3
77
51 78
52 try: 79 try:
53 _encoding = os.environ.get("HGENCODING") 80 _encoding = os.environ.get("HGENCODING")
54 if sys.platform == 'darwin' and not _encoding: 81 if sys.platform == 'darwin' and not _encoding:
55 # On darwin, getpreferredencoding ignores the locale environment and 82 # On darwin, getpreferredencoding ignores the locale environment and
181 208
182 return f 209 return f
183 210
184 def pipefilter(s, cmd): 211 def pipefilter(s, cmd):
185 '''filter string S through command CMD, returning its output''' 212 '''filter string S through command CMD, returning its output'''
186 (pin, pout) = os.popen2(cmd, 'b') 213 (pin, pout) = popen2(cmd, 'b')
187 def writer(): 214 def writer():
188 try: 215 try:
189 pin.write(s) 216 pin.write(s)
190 pin.close() 217 pin.close()
191 except IOError, inst: 218 except IOError, inst: