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pager: don't page stderr if it's being redirected (issue2541)

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This commit is contained in:
Brodie Rao 2011-01-04 00:24:34 +11:00
parent 62ca9f7af6
commit 2fb8bf1f24
1 changed files with 5 additions and 2 deletions
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7
hgext/pager.py
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@ -59,14 +59,17 @@ from mercurial.i18n import _
def _runpager(p):
if not hasattr(os, 'fork'):
sys.stderr = sys.stdout = util.popen(p, 'wb')
sys.stdout = util.popen(p, 'wb')
if sys.stderr.isatty():
sys.stderr = sys.stdout
return
fdin, fdout = os.pipe()
pid = os.fork()
if pid == 0:
os.close(fdin)
os.dup2(fdout, sys.stdout.fileno())
os.dup2(fdout, sys.stderr.fileno())
if sys.stderr.isatty():
os.dup2(fdout, sys.stderr.fileno())
os.close(fdout)
return
os.dup2(fdin, sys.stdin.fileno())