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comparison mercurial/scmposix.py @ 30311:80708959161a

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scmutil: narrow ImportError handling in termwidth() The array module must exist. It's sufficient to suppress the ImportError of termios. Also salvaged the comment why we have to handle AttributeError, from 7002bb17cc5e.
author Yuya Nishihara <yuya@tcha.org>
date Thu, 20 Oct 2016 21:50:29 +0900
parents 5c379b1f56c7
children 1ad1c5017043
comparison
equal deleted inserted replaced
30310:5c379b1f56c7 30311:80708959161a
1 from __future__ import absolute_import 1 from __future__ import absolute_import
2 2
3 import array
3 import errno 4 import errno
4 import fcntl 5 import fcntl
5 import os 6 import os
6 import sys 7 import sys
7 8
41 else: 42 else:
42 return [os.path.expanduser('~/.hgrc')] 43 return [os.path.expanduser('~/.hgrc')]
43 44
44 def termwidth(ui): 45 def termwidth(ui):
45 try: 46 try:
46 import array
47 import termios 47 import termios
48 TIOCGWINSZ = termios.TIOCGWINSZ # unavailable on IRIX (issue3449)
49 except (AttributeError, ImportError):
50 return 80
51 if True:
48 for dev in (ui.ferr, ui.fout, ui.fin): 52 for dev in (ui.ferr, ui.fout, ui.fin):
49 try: 53 try:
50 try: 54 try:
51 fd = dev.fileno() 55 fd = dev.fileno()
52 except AttributeError: 56 except AttributeError:
53 continue 57 continue
54 if not os.isatty(fd): 58 if not os.isatty(fd):
55 continue 59 continue
56 try: 60 if True:
57 arri = fcntl.ioctl(fd, termios.TIOCGWINSZ, '\0' * 8) 61 arri = fcntl.ioctl(fd, TIOCGWINSZ, '\0' * 8)
58 width = array.array('h', arri)[1] 62 width = array.array('h', arri)[1]
59 if width > 0: 63 if width > 0:
60 return width 64 return width
61 except AttributeError:
62 pass
63 except ValueError: 65 except ValueError:
64 pass 66 pass
65 except IOError as e: 67 except IOError as e:
66 if e[0] == errno.EINVAL: 68 if e[0] == errno.EINVAL:
67 pass 69 pass
68 else: 70 else:
69 raise 71 raise
70 except ImportError:
71 pass
72 return 80 72 return 80