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posix: workaround lack of TIOCGWINSZ on Irix (issue3449)

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On an Irix 6.5.24 system, TIOCGWINSZ is not available. This means that
any usage of the "hg" tool that looks up the terminal size (e.g. "hg
help") will fail with an AttributeError.

A simple work-around is just to wrap this block in mercurial/posix.py
with a try/except so that it ends up using the default 80 characters
width.
This commit is contained in:
Mark Round 2012-05-14 13:25:42 +01:00
parent dbfb64e582
commit 7b5857715d
1 changed files with 7 additions and 4 deletions
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11
mercurial/posix.py
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@ -409,10 +409,13 @@ def termwidth():
continue
if not os.isatty(fd):
continue
arri = fcntl.ioctl(fd, termios.TIOCGWINSZ, '\0' * 8)
width = array.array('h', arri)[1]
if width > 0:
return width
try:
arri = fcntl.ioctl(fd, termios.TIOCGWINSZ, '\0' * 8)
width = array.array('h', arri)[1]
if width > 0:
return width
except AttributeError:
pass
except ValueError:
pass
except IOError, e: