Commit | Line | Data |
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8fc0321f IM |
1 | #include "cache.h" |
2 | #include "color.h" | |
3 | ||
13d0ab5e | 4 | int perf_use_color_default = -1; |
8fc0321f IM |
5 | |
6 | static int parse_color(const char *name, int len) | |
7 | { | |
8 | static const char * const color_names[] = { | |
9 | "normal", "black", "red", "green", "yellow", | |
10 | "blue", "magenta", "cyan", "white" | |
11 | }; | |
12 | char *end; | |
13 | int i; | |
f37a291c IM |
14 | |
15 | for (i = 0; i < (int)ARRAY_SIZE(color_names); i++) { | |
8fc0321f IM |
16 | const char *str = color_names[i]; |
17 | if (!strncasecmp(name, str, len) && !str[len]) | |
18 | return i - 1; | |
19 | } | |
20 | i = strtol(name, &end, 10); | |
21 | if (end - name == len && i >= -1 && i <= 255) | |
22 | return i; | |
23 | return -2; | |
24 | } | |
25 | ||
26 | static int parse_attr(const char *name, int len) | |
27 | { | |
28 | static const int attr_values[] = { 1, 2, 4, 5, 7 }; | |
29 | static const char * const attr_names[] = { | |
30 | "bold", "dim", "ul", "blink", "reverse" | |
31 | }; | |
f37a291c IM |
32 | unsigned int i; |
33 | ||
8fc0321f IM |
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]; | |
38 | } | |
39 | return -1; | |
40 | } | |
41 | ||
42 | void color_parse(const char *value, const char *var, char *dst) | |
43 | { | |
44 | color_parse_mem(value, strlen(value), var, dst); | |
45 | } | |
46 | ||
47 | void color_parse_mem(const char *value, int value_len, const char *var, | |
48 | char *dst) | |
49 | { | |
50 | const char *ptr = value; | |
51 | int len = value_len; | |
52 | int attr = -1; | |
53 | int fg = -2; | |
54 | int bg = -2; | |
55 | ||
56 | if (!strncasecmp(value, "reset", len)) { | |
57 | strcpy(dst, PERF_COLOR_RESET); | |
58 | return; | |
59 | } | |
60 | ||
61 | /* [fg [bg]] [attr] */ | |
62 | while (len > 0) { | |
63 | const char *word = ptr; | |
64 | int val, wordlen = 0; | |
65 | ||
66 | while (len > 0 && !isspace(word[wordlen])) { | |
67 | wordlen++; | |
68 | len--; | |
69 | } | |
70 | ||
71 | ptr = word + wordlen; | |
72 | while (len > 0 && isspace(*ptr)) { | |
73 | ptr++; | |
74 | len--; | |
75 | } | |
76 | ||
77 | val = parse_color(word, wordlen); | |
78 | if (val >= -1) { | |
79 | if (fg == -2) { | |
80 | fg = val; | |
81 | continue; | |
82 | } | |
83 | if (bg == -2) { | |
84 | bg = val; | |
85 | continue; | |
86 | } | |
87 | goto bad; | |
88 | } | |
89 | val = parse_attr(word, wordlen); | |
90 | if (val < 0 || attr != -1) | |
91 | goto bad; | |
92 | attr = val; | |
93 | } | |
94 | ||
95 | if (attr >= 0 || fg >= 0 || bg >= 0) { | |
96 | int sep = 0; | |
97 | ||
98 | *dst++ = '\033'; | |
99 | *dst++ = '['; | |
100 | if (attr >= 0) { | |
101 | *dst++ = '0' + attr; | |
102 | sep++; | |
103 | } | |
104 | if (fg >= 0) { | |
105 | if (sep++) | |
106 | *dst++ = ';'; | |
107 | if (fg < 8) { | |
108 | *dst++ = '3'; | |
109 | *dst++ = '0' + fg; | |
110 | } else { | |
111 | dst += sprintf(dst, "38;5;%d", fg); | |
112 | } | |
113 | } | |
114 | if (bg >= 0) { | |
115 | if (sep++) | |
116 | *dst++ = ';'; | |
117 | if (bg < 8) { | |
118 | *dst++ = '4'; | |
119 | *dst++ = '0' + bg; | |
120 | } else { | |
121 | dst += sprintf(dst, "48;5;%d", bg); | |
122 | } | |
123 | } | |
124 | *dst++ = 'm'; | |
125 | } | |
126 | *dst = 0; | |
127 | return; | |
128 | bad: | |
129 | die("bad color value '%.*s' for variable '%s'", value_len, value, var); | |
130 | } | |
131 | ||
132 | int perf_config_colorbool(const char *var, const char *value, int stdout_is_tty) | |
133 | { | |
134 | if (value) { | |
135 | if (!strcasecmp(value, "never")) | |
136 | return 0; | |
137 | if (!strcasecmp(value, "always")) | |
138 | return 1; | |
139 | if (!strcasecmp(value, "auto")) | |
140 | goto auto_color; | |
141 | } | |
142 | ||
143 | /* Missing or explicit false to turn off colorization */ | |
144 | if (!perf_config_bool(var, value)) | |
145 | return 0; | |
146 | ||
147 | /* any normal truth value defaults to 'auto' */ | |
148 | auto_color: | |
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")) | |
154 | return 1; | |
155 | } | |
156 | return 0; | |
157 | } | |
158 | ||
159 | int perf_color_default_config(const char *var, const char *value, void *cb) | |
160 | { | |
161 | if (!strcmp(var, "color.ui")) { | |
162 | perf_use_color_default = perf_config_colorbool(var, value, -1); | |
163 | return 0; | |
164 | } | |
165 | ||
166 | return perf_default_config(var, value, cb); | |
167 | } | |
168 | ||
169 | static int color_vfprintf(FILE *fp, const char *color, const char *fmt, | |
170 | va_list args, const char *trail) | |
171 | { | |
172 | int r = 0; | |
173 | ||
13d0ab5e IM |
174 | /* |
175 | * Auto-detect: | |
176 | */ | |
177 | if (perf_use_color_default < 0) { | |
178 | if (isatty(1) || pager_in_use()) | |
179 | perf_use_color_default = 1; | |
180 | else | |
181 | perf_use_color_default = 0; | |
182 | } | |
183 | ||
184 | if (perf_use_color_default && *color) | |
8fc0321f IM |
185 | r += fprintf(fp, "%s", color); |
186 | r += vfprintf(fp, fmt, args); | |
13d0ab5e | 187 | if (perf_use_color_default && *color) |
8fc0321f IM |
188 | r += fprintf(fp, "%s", PERF_COLOR_RESET); |
189 | if (trail) | |
190 | r += fprintf(fp, "%s", trail); | |
191 | return r; | |
192 | } | |
193 | ||
194 | ||
195 | ||
196 | int color_fprintf(FILE *fp, const char *color, const char *fmt, ...) | |
197 | { | |
198 | va_list args; | |
199 | int r; | |
13d0ab5e | 200 | |
8fc0321f IM |
201 | va_start(args, fmt); |
202 | r = color_vfprintf(fp, color, fmt, args, NULL); | |
203 | va_end(args); | |
204 | return r; | |
205 | } | |
206 | ||
207 | int color_fprintf_ln(FILE *fp, const char *color, const char *fmt, ...) | |
208 | { | |
209 | va_list args; | |
210 | int r; | |
211 | va_start(args, fmt); | |
212 | r = color_vfprintf(fp, color, fmt, args, "\n"); | |
213 | va_end(args); | |
214 | return r; | |
215 | } | |
216 | ||
217 | /* | |
218 | * This function splits the buffer by newlines and colors the lines individually. | |
219 | * | |
220 | * Returns 0 on success. | |
221 | */ | |
222 | int color_fwrite_lines(FILE *fp, const char *color, | |
223 | size_t count, const char *buf) | |
224 | { | |
225 | if (!*color) | |
226 | return fwrite(buf, count, 1, fp) != 1; | |
f37a291c | 227 | |
8fc0321f IM |
228 | while (count) { |
229 | char *p = memchr(buf, '\n', count); | |
f37a291c | 230 | |
8fc0321f | 231 | if (p != buf && (fputs(color, fp) < 0 || |
f37a291c | 232 | fwrite(buf, p ? (size_t)(p - buf) : count, 1, fp) != 1 || |
8fc0321f IM |
233 | fputs(PERF_COLOR_RESET, fp) < 0)) |
234 | return -1; | |
235 | if (!p) | |
236 | return 0; | |
237 | if (fputc('\n', fp) < 0) | |
238 | return -1; | |
239 | count -= p + 1 - buf; | |
240 | buf = p + 1; | |
241 | } | |
242 | return 0; | |
243 | } | |
244 | ||
1e11fd82 FW |
245 | char *get_percent_color(double percent) |
246 | { | |
247 | char *color = PERF_COLOR_NORMAL; | |
248 | ||
249 | /* | |
250 | * We color high-overhead entries in red, mid-overhead | |
251 | * entries in green - and keep the low overhead places | |
252 | * normal: | |
253 | */ | |
254 | if (percent >= MIN_RED) | |
255 | color = PERF_COLOR_RED; | |
256 | else { | |
257 | if (percent > MIN_GREEN) | |
258 | color = PERF_COLOR_GREEN; | |
259 | } | |
260 | return color; | |
261 | } | |
8fc0321f | 262 | |
1e11fd82 FW |
263 | int percent_color_fprintf(FILE *fp, const char *fmt, double percent) |
264 | { | |
265 | int r; | |
266 | char *color; | |
267 | ||
268 | color = get_percent_color(percent); | |
269 | r = color_fprintf(fp, color, fmt, percent); | |
270 | ||
271 | return r; | |
272 | } |