4 int perf_use_color_default = -1;
6 static int parse_color(const char *name, int len)
8 static const char * const color_names[] = {
9 "normal", "black", "red", "green", "yellow",
10 "blue", "magenta", "cyan", "white"
15 for (i = 0; i < (int)ARRAY_SIZE(color_names); i++) {
16 const char *str = color_names[i];
17 if (!strncasecmp(name, str, len) && !str[len])
20 i = strtol(name, &end, 10);
21 if (end - name == len && i >= -1 && i <= 255)
26 static int parse_attr(const char *name, int len)
28 static const int attr_values[] = { 1, 2, 4, 5, 7 };
29 static const char * const attr_names[] = {
30 "bold", "dim", "ul", "blink", "reverse"
34 for (i = 0; i < ARRAY_SIZE(attr_names); i++) {
35 const char *str = attr_names[i];
36 if (!strncasecmp(name, str, len) && !str[len])
37 return attr_values[i];
42 void color_parse(const char *value, const char *var, char *dst)
44 color_parse_mem(value, strlen(value), var, dst);
47 void color_parse_mem(const char *value, int value_len, const char *var,
50 const char *ptr = value;
56 if (!strncasecmp(value, "reset", len)) {
57 strcpy(dst, PERF_COLOR_RESET);
61 /* [fg [bg]] [attr] */
63 const char *word = ptr;
66 while (len > 0 && !isspace(word[wordlen])) {
72 while (len > 0 && isspace(*ptr)) {
77 val = parse_color(word, wordlen);
89 val = parse_attr(word, wordlen);
90 if (val < 0 || attr != -1)
95 if (attr >= 0 || fg >= 0 || bg >= 0) {
111 dst += sprintf(dst, "38;5;%d", fg);
121 dst += sprintf(dst, "48;5;%d", bg);
129 die("bad color value '%.*s' for variable '%s'", value_len, value, var);
132 int perf_config_colorbool(const char *var, const char *value, int stdout_is_tty)
135 if (!strcasecmp(value, "never"))
137 if (!strcasecmp(value, "always"))
139 if (!strcasecmp(value, "auto"))
143 /* Missing or explicit false to turn off colorization */
144 if (!perf_config_bool(var, value))
147 /* any normal truth value defaults to 'auto' */
149 if (stdout_is_tty < 0)
150 stdout_is_tty = isatty(1);
151 if (stdout_is_tty || (pager_in_use() && pager_use_color)) {
152 char *term = getenv("TERM");
153 if (term && strcmp(term, "dumb"))
159 int perf_color_default_config(const char *var, const char *value, void *cb)
161 if (!strcmp(var, "color.ui")) {
162 perf_use_color_default = perf_config_colorbool(var, value, -1);
166 return perf_default_config(var, value, cb);
169 static int __color_vfprintf(FILE *fp, const char *color, const char *fmt,
170 va_list args, const char *trail)
177 if (perf_use_color_default < 0) {
178 if (isatty(1) || pager_in_use())
179 perf_use_color_default = 1;
181 perf_use_color_default = 0;
184 if (perf_use_color_default && *color)
185 r += fprintf(fp, "%s", color);
186 r += vfprintf(fp, fmt, args);
187 if (perf_use_color_default && *color)
188 r += fprintf(fp, "%s", PERF_COLOR_RESET);
190 r += fprintf(fp, "%s", trail);
194 int color_vfprintf(FILE *fp, const char *color, const char *fmt, va_list args)
196 return __color_vfprintf(fp, color, fmt, args, NULL);
200 int color_fprintf(FILE *fp, const char *color, const char *fmt, ...)
206 r = color_vfprintf(fp, color, fmt, args);
211 int color_fprintf_ln(FILE *fp, const char *color, const char *fmt, ...)
216 r = __color_vfprintf(fp, color, fmt, args, "\n");
222 * This function splits the buffer by newlines and colors the lines individually.
224 * Returns 0 on success.
226 int color_fwrite_lines(FILE *fp, const char *color,
227 size_t count, const char *buf)
230 return fwrite(buf, count, 1, fp) != 1;
233 char *p = memchr(buf, '\n', count);
235 if (p != buf && (fputs(color, fp) < 0 ||
236 fwrite(buf, p ? (size_t)(p - buf) : count, 1, fp) != 1 ||
237 fputs(PERF_COLOR_RESET, fp) < 0))
241 if (fputc('\n', fp) < 0)
243 count -= p + 1 - buf;
249 const char *get_percent_color(double percent)
251 const char *color = PERF_COLOR_NORMAL;
254 * We color high-overhead entries in red, mid-overhead
255 * entries in green - and keep the low overhead places
258 if (percent >= MIN_RED)
259 color = PERF_COLOR_RED;
261 if (percent > MIN_GREEN)
262 color = PERF_COLOR_GREEN;
267 int percent_color_fprintf(FILE *fp, const char *fmt, double percent)
272 color = get_percent_color(percent);
273 r = color_fprintf(fp, color, fmt, percent);