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Make "git help" react to window size correctly 

Currently the git "show commands" function will react to the environment
variable COLUMNS, or just default to a width of 80 characters.

That's just soo eighties. Nobody sane sets COLUMNS any more, unless they
need to support some stone-age software from before the age of steam
engines, SIGWINCH and TIOCGWINSZ.

So get with the new century, and use TIOCGWINSZ to get the terminal size.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Linus Torvalds 2005-12-18 12:15:58 -08:00 committed by Junio C Hamano
parent d808111ebd
commit ea77e675e5
1 changed files with 11 additions and 0 deletions
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11
git.c
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@ -8,6 +8,7 @@
#include <errno.h>
#include <limits.h>
#include <stdarg.h>
#include <sys/ioctl.h>
#include "git-compat-util.h"
#ifndef PATH_MAX
@ -26,6 +27,16 @@ static int term_columns(void)
if (col_string && (n_cols = atoi(col_string)) > 0)
return n_cols;
#ifdef TIOCGWINSZ
{
struct winsize ws;
if (!ioctl(1, TIOCGWINSZ, &ws)) {
if (ws.ws_col)
return ws.ws_col;
}
}
#endif
return 80;
}