color_config.c

 1// SPDX-License-Identifier: GPL-2.0
 2#include <linux/kernel.h>
 3#include <subcmd/pager.h>
 4#include <string.h>
 5#include "config.h"
 6#include <stdlib.h>
 7#include <stdio.h>
 8#include "color.h"
 9#include <math.h>
10#include <unistd.h>
11
12int perf_config_colorbool(const char *var, const char *value, int stdout_is_tty)
13{
14	if (value) {
15		if (!strcasecmp(value, "never"))
16			return 0;
17		if (!strcasecmp(value, "always"))
18			return 1;
19		if (!strcasecmp(value, "auto"))
20			goto auto_color;
21	}
22
23	/* Missing or explicit false to turn off colorization */
24	if (!perf_config_bool(var, value))
25		return 0;
26
27	/* any normal truth value defaults to 'auto' */
28 auto_color:
29	if (stdout_is_tty < 0)
30		stdout_is_tty = isatty(1);
31	if (stdout_is_tty || pager_in_use()) {
32		char *term = getenv("TERM");
33		if (term && strcmp(term, "dumb"))
34			return 1;
35	}
36	return 0;
37}