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Merge branch 'zj/term-columns' into maint
* zj/term-columns: pager: find out the terminal width before spawning the pager
This commit is contained in:
commit
c17ff2a361
1
cache.h
1
cache.h
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@ -1176,6 +1176,7 @@ extern void setup_pager(void);
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extern const char *pager_program;
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extern int pager_in_use(void);
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extern int pager_use_color;
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extern int term_columns(void);
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extern const char *editor_program;
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extern const char *askpass_program;
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22
help.c
22
help.c
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@ -5,28 +5,6 @@
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#include "help.h"
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#include "common-cmds.h"
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/* most GUI terminals set COLUMNS (although some don't export it) */
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static int term_columns(void)
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{
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char *col_string = getenv("COLUMNS");
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int n_cols;
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if (col_string && (n_cols = atoi(col_string)) > 0)
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return n_cols;
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#ifdef TIOCGWINSZ
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{
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struct winsize ws;
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if (!ioctl(1, TIOCGWINSZ, &ws)) {
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if (ws.ws_col)
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return ws.ws_col;
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}
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}
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#endif
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return 80;
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}
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void add_cmdname(struct cmdnames *cmds, const char *name, int len)
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{
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struct cmdname *ent = xmalloc(sizeof(*ent) + len + 1);
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37
pager.c
37
pager.c
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@ -76,6 +76,12 @@ void setup_pager(void)
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if (!pager)
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return;
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/*
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* force computing the width of the terminal before we redirect
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* the standard output to the pager.
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*/
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(void) term_columns();
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setenv("GIT_PAGER_IN_USE", "true", 1);
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/* spawn the pager */
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@ -110,3 +116,34 @@ int pager_in_use(void)
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env = getenv("GIT_PAGER_IN_USE");
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return env ? git_config_bool("GIT_PAGER_IN_USE", env) : 0;
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}
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/*
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* Return cached value (if set) or $COLUMNS environment variable (if
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* set and positive) or ioctl(1, TIOCGWINSZ).ws_col (if positive),
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* and default to 80 if all else fails.
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*/
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int term_columns(void)
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{
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static int term_columns_at_startup;
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char *col_string;
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int n_cols;
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if (term_columns_at_startup)
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return term_columns_at_startup;
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term_columns_at_startup = 80;
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col_string = getenv("COLUMNS");
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if (col_string && (n_cols = atoi(col_string)) > 0)
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term_columns_at_startup = n_cols;
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#ifdef TIOCGWINSZ
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else {
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struct winsize ws;
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if (!ioctl(1, TIOCGWINSZ, &ws) && ws.ws_col)
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term_columns_at_startup = ws.ws_col;
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}
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#endif
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return term_columns_at_startup;
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}
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