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Guess the console columns in the general case by trying stderr and then stdout

This commit is contained in:
Thomas Nagy 2013-11-10 06:02:04 +01:00
parent a2691d82dd
commit cc6de0b989
1 changed files with 5 additions and 5 deletions
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10
waflib/Logs.py
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@ -93,16 +93,15 @@ try:
except ImportError:
pass
else:
if got_tty:
for stream in (sys.stderr, sys.stdout):
def get_term_cols_real():
"""
Private use only.
"""
dummy_lines, cols = struct.unpack("HHHH", \
fcntl.ioctl(sys.stderr.fileno(),termios.TIOCGWINSZ , \
struct.pack("HHHH", 0, 0, 0, 0)))[:2]
stuff = fcntl.ioctl(stream.fileno(), termios.TIOCGWINSZ, struct.pack("HHHH", 0, 0, 0, 0))
dummy_lines, cols = struct.unpack("HHHH", stuff)[:2]
return cols
# try the function once to see if it really works
try:
get_term_cols_real()
@ -110,6 +109,7 @@ else:
pass
else:
get_term_cols = get_term_cols_real
break
get_term_cols.__doc__ = """
Get the console width in characters.