tools/perf/util/color_config.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <linux/kernel.h>
   3 #include "cache.h"
   4 #include "config.h"
   5 #include <stdlib.h>
   6 #include <stdio.h>
   7 #include "color.h"
   8 #include <math.h>
   9 #include <unistd.h>
  10
  11 int perf_config_colorbool(const char *var, const char *value, int stdout_is_tty)
  12 {
  13         if (value) {
  14                 if (!strcasecmp(value, "never"))
  15                         return 0;
  16                 if (!strcasecmp(value, "always"))
  17                         return 1;
  18                 if (!strcasecmp(value, "auto"))
  19                         goto auto_color;
  20         }
  21
  22         /* Missing or explicit false to turn off colorization */
  23         if (!perf_config_bool(var, value))
  24                 return 0;
  25
  26         /* any normal truth value defaults to 'auto' */
  27  auto_color:
  28         if (stdout_is_tty < 0)
  29                 stdout_is_tty = isatty(1);
  30         if (stdout_is_tty || pager_in_use()) {
  31                 char *term = getenv("TERM");
  32                 if (term && strcmp(term, "dumb"))
  33                         return 1;
  34         }
  35         return 0;
  36 }
  37
  38 int perf_color_default_config(const char *var, const char *value,
  39                               void *cb __maybe_unused)
  40 {
  41         if (!strcmp(var, "color.ui")) {
  42                 perf_use_color_default = perf_config_colorbool(var, value, -1);
  43                 return 0;
  44         }
  45
  46         return 0;
  47 }