Commit | Line | Data |
---|---|---|
4a2909a7 | 1 | /* Copyright (c) 2006 Jonas Fonseca <fonseca@diku.dk> |
192d9a60 | 2 | * |
5cfbde75 JF |
3 | * This program is free software; you can redistribute it and/or |
4 | * modify it under the terms of the GNU General Public License as | |
5 | * published by the Free Software Foundation; either version 2 of | |
6 | * the License, or (at your option) any later version. | |
192d9a60 JF |
7 | * |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | */ | |
b801d8b2 JF |
13 | /** |
14 | * TIG(1) | |
15 | * ====== | |
16 | * | |
17 | * NAME | |
18 | * ---- | |
19 | * tig - text-mode interface for git | |
20 | * | |
21 | * SYNOPSIS | |
22 | * -------- | |
23 | * [verse] | |
03a93dbb JF |
24 | * tig [options] |
25 | * tig [options] [--] [git log options] | |
b76c2afc JF |
26 | * tig [options] log [git log options] |
27 | * tig [options] diff [git diff options] | |
8855ada4 JF |
28 | * tig [options] show [git show options] |
29 | * tig [options] < [git command output] | |
b801d8b2 JF |
30 | * |
31 | * DESCRIPTION | |
32 | * ----------- | |
6706b2ba JF |
33 | * Browse changes in a git repository. Additionally, tig(1) can also act |
34 | * as a pager for output of various git commands. | |
35 | * | |
57bdf034 | 36 | * When browsing repositories, tig(1) uses the underlying git commands |
468876c9 JF |
37 | * to present the user with various views, such as summarized commit log |
38 | * and showing the commit with the log message, diffstat, and the diff. | |
6706b2ba | 39 | * |
468876c9 JF |
40 | * Using tig(1) as a pager, it will display input from stdin and try |
41 | * to colorize it. | |
b801d8b2 JF |
42 | **/ |
43 | ||
b76c2afc | 44 | #ifndef VERSION |
8c11094f | 45 | #define VERSION "tig-0.3" |
b76c2afc JF |
46 | #endif |
47 | ||
8855ada4 JF |
48 | #ifndef DEBUG |
49 | #define NDEBUG | |
50 | #endif | |
51 | ||
22f66b0a | 52 | #include <assert.h> |
4c6fabc2 | 53 | #include <errno.h> |
22f66b0a JF |
54 | #include <ctype.h> |
55 | #include <signal.h> | |
b801d8b2 | 56 | #include <stdarg.h> |
b801d8b2 | 57 | #include <stdio.h> |
22f66b0a | 58 | #include <stdlib.h> |
b801d8b2 | 59 | #include <string.h> |
6908bdbd | 60 | #include <unistd.h> |
b76c2afc | 61 | #include <time.h> |
b801d8b2 JF |
62 | |
63 | #include <curses.h> | |
b801d8b2 JF |
64 | |
65 | static void die(const char *err, ...); | |
66 | static void report(const char *msg, ...); | |
4a63c884 | 67 | static int read_properties(FILE *pipe, const char *separators, int (*read)(char *, int, char *, int)); |
1ba2ae4b | 68 | static void set_nonblocking_input(bool loading); |
10e290ee | 69 | static size_t utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed); |
6b161b31 JF |
70 | |
71 | #define ABS(x) ((x) >= 0 ? (x) : -(x)) | |
72 | #define MIN(x, y) ((x) < (y) ? (x) : (y)) | |
73 | ||
74 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) | |
75 | #define STRING_SIZE(x) (sizeof(x) - 1) | |
b76c2afc | 76 | |
2e8488b4 JF |
77 | #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */ |
78 | #define SIZEOF_CMD 1024 /* Size of command buffer. */ | |
b801d8b2 | 79 | |
82e78006 JF |
80 | /* This color name can be used to refer to the default term colors. */ |
81 | #define COLOR_DEFAULT (-1) | |
78c70acd | 82 | |
67e48ac5 | 83 | #define TIG_HELP "(d)iff, (l)og, (m)ain, (q)uit, (h)elp" |
468876c9 | 84 | |
82e78006 | 85 | /* The format and size of the date column in the main view. */ |
4c6fabc2 | 86 | #define DATE_FORMAT "%Y-%m-%d %H:%M" |
6b161b31 | 87 | #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ") |
4c6fabc2 | 88 | |
10e290ee JF |
89 | #define AUTHOR_COLS 20 |
90 | ||
a28bcc22 | 91 | /* The default interval between line numbers. */ |
4a2909a7 | 92 | #define NUMBER_INTERVAL 1 |
82e78006 | 93 | |
6706b2ba JF |
94 | #define TABSIZE 8 |
95 | ||
a28bcc22 JF |
96 | #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3) |
97 | ||
8855ada4 | 98 | /* Some ascii-shorthands fitted into the ncurses namespace. */ |
a28bcc22 JF |
99 | #define KEY_TAB '\t' |
100 | #define KEY_RETURN '\r' | |
4a2909a7 JF |
101 | #define KEY_ESC 27 |
102 | ||
6706b2ba | 103 | |
a28bcc22 | 104 | /* User action requests. */ |
4a2909a7 | 105 | enum request { |
a28bcc22 JF |
106 | /* Offset all requests to avoid conflicts with ncurses getch values. */ |
107 | REQ_OFFSET = KEY_MAX + 1, | |
108 | ||
4a2909a7 | 109 | /* XXX: Keep the view request first and in sync with views[]. */ |
2e8488b4 | 110 | REQ_VIEW_MAIN, |
4a2909a7 JF |
111 | REQ_VIEW_DIFF, |
112 | REQ_VIEW_LOG, | |
2e8488b4 | 113 | REQ_VIEW_HELP, |
6908bdbd | 114 | REQ_VIEW_PAGER, |
4a2909a7 | 115 | |
6b161b31 | 116 | REQ_ENTER, |
03a93dbb JF |
117 | REQ_QUIT, |
118 | REQ_PROMPT, | |
4a2909a7 | 119 | REQ_SCREEN_REDRAW, |
fac7db6c | 120 | REQ_SCREEN_RESIZE, |
4a2909a7 | 121 | REQ_SCREEN_UPDATE, |
03a93dbb JF |
122 | REQ_SHOW_VERSION, |
123 | REQ_STOP_LOADING, | |
4a2909a7 | 124 | REQ_TOGGLE_LINE_NUMBERS, |
03a93dbb | 125 | REQ_VIEW_NEXT, |
4f9b667a | 126 | REQ_VIEW_CLOSE, |
b3a54cba JF |
127 | REQ_NEXT, |
128 | REQ_PREVIOUS, | |
4a2909a7 JF |
129 | |
130 | REQ_MOVE_UP, | |
131 | REQ_MOVE_DOWN, | |
132 | REQ_MOVE_PAGE_UP, | |
133 | REQ_MOVE_PAGE_DOWN, | |
134 | REQ_MOVE_FIRST_LINE, | |
135 | REQ_MOVE_LAST_LINE, | |
136 | ||
137 | REQ_SCROLL_LINE_UP, | |
138 | REQ_SCROLL_LINE_DOWN, | |
139 | REQ_SCROLL_PAGE_UP, | |
140 | REQ_SCROLL_PAGE_DOWN, | |
141 | }; | |
142 | ||
c34d9c9f | 143 | struct ref { |
468876c9 JF |
144 | char *name; /* Ref name; tag or head names are shortened. */ |
145 | char id[41]; /* Commit SHA1 ID */ | |
146 | unsigned int tag:1; /* Is it a tag? */ | |
147 | unsigned int next:1; /* For ref lists: are there more refs? */ | |
c34d9c9f JF |
148 | }; |
149 | ||
ff26aa29 | 150 | static struct ref **get_refs(char *id); |
4c6fabc2 | 151 | |
660e09ad JF |
152 | struct int_map { |
153 | const char *name; | |
154 | int namelen; | |
155 | int value; | |
156 | }; | |
157 | ||
158 | static int | |
159 | set_from_int_map(struct int_map *map, size_t map_size, | |
160 | int *value, const char *name, int namelen) | |
161 | { | |
162 | ||
163 | int i; | |
164 | ||
165 | for (i = 0; i < map_size; i++) | |
166 | if (namelen == map[i].namelen && | |
167 | !strncasecmp(name, map[i].name, namelen)) { | |
168 | *value = map[i].value; | |
169 | return OK; | |
170 | } | |
171 | ||
172 | return ERR; | |
173 | } | |
174 | ||
6706b2ba | 175 | |
03a93dbb JF |
176 | /* |
177 | * String helpers | |
178 | */ | |
78c70acd | 179 | |
82e78006 | 180 | static inline void |
4685845e | 181 | string_ncopy(char *dst, const char *src, int dstlen) |
82e78006 JF |
182 | { |
183 | strncpy(dst, src, dstlen - 1); | |
184 | dst[dstlen - 1] = 0; | |
03a93dbb | 185 | |
82e78006 JF |
186 | } |
187 | ||
188 | /* Shorthand for safely copying into a fixed buffer. */ | |
189 | #define string_copy(dst, src) \ | |
190 | string_ncopy(dst, src, sizeof(dst)) | |
191 | ||
4a63c884 JF |
192 | static char * |
193 | chomp_string(char *name) | |
194 | { | |
195 | int namelen; | |
196 | ||
197 | while (isspace(*name)) | |
198 | name++; | |
199 | ||
200 | namelen = strlen(name) - 1; | |
201 | while (namelen > 0 && isspace(name[namelen])) | |
202 | name[namelen--] = 0; | |
203 | ||
204 | return name; | |
205 | } | |
206 | ||
6706b2ba | 207 | |
03a93dbb JF |
208 | /* Shell quoting |
209 | * | |
210 | * NOTE: The following is a slightly modified copy of the git project's shell | |
211 | * quoting routines found in the quote.c file. | |
212 | * | |
213 | * Help to copy the thing properly quoted for the shell safety. any single | |
214 | * quote is replaced with '\'', any exclamation point is replaced with '\!', | |
215 | * and the whole thing is enclosed in a | |
216 | * | |
217 | * E.g. | |
218 | * original sq_quote result | |
219 | * name ==> name ==> 'name' | |
220 | * a b ==> a b ==> 'a b' | |
221 | * a'b ==> a'\''b ==> 'a'\''b' | |
222 | * a!b ==> a'\!'b ==> 'a'\!'b' | |
223 | */ | |
224 | ||
225 | static size_t | |
226 | sq_quote(char buf[SIZEOF_CMD], size_t bufsize, const char *src) | |
227 | { | |
228 | char c; | |
229 | ||
a9274b95 | 230 | #define BUFPUT(x) do { if (bufsize < SIZEOF_CMD) buf[bufsize++] = (x); } while (0) |
03a93dbb JF |
231 | |
232 | BUFPUT('\''); | |
233 | while ((c = *src++)) { | |
234 | if (c == '\'' || c == '!') { | |
235 | BUFPUT('\''); | |
236 | BUFPUT('\\'); | |
237 | BUFPUT(c); | |
238 | BUFPUT('\''); | |
239 | } else { | |
240 | BUFPUT(c); | |
241 | } | |
242 | } | |
243 | BUFPUT('\''); | |
244 | ||
245 | return bufsize; | |
246 | } | |
247 | ||
82e78006 | 248 | |
b76c2afc JF |
249 | /** |
250 | * OPTIONS | |
251 | * ------- | |
252 | **/ | |
253 | ||
4b8c01a3 JF |
254 | static const char usage[] = |
255 | VERSION " (" __DATE__ ")\n" | |
256 | "\n" | |
257 | "Usage: tig [options]\n" | |
258 | " or: tig [options] [--] [git log options]\n" | |
259 | " or: tig [options] log [git log options]\n" | |
260 | " or: tig [options] diff [git diff options]\n" | |
261 | " or: tig [options] show [git show options]\n" | |
262 | " or: tig [options] < [git command output]\n" | |
263 | "\n" | |
264 | "Options:\n" | |
265 | " -l Start up in log view\n" | |
266 | " -d Start up in diff view\n" | |
267 | " -n[I], --line-number[=I] Show line numbers with given interval\n" | |
b3c965c9 | 268 | " -b[N], --tab-size[=N] Set number of spaces for tab expansion\n" |
4b8c01a3 JF |
269 | " -- Mark end of tig options\n" |
270 | " -v, --version Show version and exit\n" | |
271 | " -h, --help Show help message and exit\n"; | |
272 | ||
6706b2ba JF |
273 | /* Option and state variables. */ |
274 | static bool opt_line_number = FALSE; | |
2e8488b4 | 275 | static int opt_num_interval = NUMBER_INTERVAL; |
6706b2ba | 276 | static int opt_tab_size = TABSIZE; |
6b161b31 | 277 | static enum request opt_request = REQ_VIEW_MAIN; |
03a93dbb | 278 | static char opt_cmd[SIZEOF_CMD] = ""; |
9989bf60 JF |
279 | static char opt_encoding[20] = ""; |
280 | static bool opt_utf8 = TRUE; | |
6908bdbd | 281 | static FILE *opt_pipe = NULL; |
b76c2afc | 282 | |
b76c2afc | 283 | /* Returns the index of log or diff command or -1 to exit. */ |
8855ada4 | 284 | static bool |
b76c2afc JF |
285 | parse_options(int argc, char *argv[]) |
286 | { | |
287 | int i; | |
288 | ||
289 | for (i = 1; i < argc; i++) { | |
290 | char *opt = argv[i]; | |
291 | ||
292 | /** | |
b76c2afc | 293 | * -l:: |
1ba2ae4b | 294 | * Start up in log view using the internal log command. |
b76c2afc | 295 | **/ |
6b161b31 | 296 | if (!strcmp(opt, "-l")) { |
4a2909a7 | 297 | opt_request = REQ_VIEW_LOG; |
6b161b31 JF |
298 | continue; |
299 | } | |
b76c2afc JF |
300 | |
301 | /** | |
302 | * -d:: | |
1ba2ae4b | 303 | * Start up in diff view using the internal diff command. |
b76c2afc | 304 | **/ |
6b161b31 | 305 | if (!strcmp(opt, "-d")) { |
4a2909a7 | 306 | opt_request = REQ_VIEW_DIFF; |
6b161b31 JF |
307 | continue; |
308 | } | |
b76c2afc JF |
309 | |
310 | /** | |
2e8488b4 | 311 | * -n[INTERVAL], --line-number[=INTERVAL]:: |
b76c2afc | 312 | * Prefix line numbers in log and diff view. |
2e8488b4 | 313 | * Optionally, with interval different than each line. |
b76c2afc | 314 | **/ |
6b161b31 | 315 | if (!strncmp(opt, "-n", 2) || |
8855ada4 | 316 | !strncmp(opt, "--line-number", 13)) { |
2e8488b4 JF |
317 | char *num = opt; |
318 | ||
319 | if (opt[1] == 'n') { | |
320 | num = opt + 2; | |
321 | ||
322 | } else if (opt[STRING_SIZE("--line-number")] == '=') { | |
323 | num = opt + STRING_SIZE("--line-number="); | |
324 | } | |
325 | ||
326 | if (isdigit(*num)) | |
327 | opt_num_interval = atoi(num); | |
328 | ||
6b161b31 JF |
329 | opt_line_number = TRUE; |
330 | continue; | |
331 | } | |
b76c2afc JF |
332 | |
333 | /** | |
380ec161 | 334 | * -b[NSPACES], --tab-size[=NSPACES]:: |
6706b2ba JF |
335 | * Set the number of spaces tabs should be expanded to. |
336 | **/ | |
380ec161 | 337 | if (!strncmp(opt, "-b", 2) || |
6706b2ba JF |
338 | !strncmp(opt, "--tab-size", 10)) { |
339 | char *num = opt; | |
340 | ||
380ec161 | 341 | if (opt[1] == 'b') { |
6706b2ba JF |
342 | num = opt + 2; |
343 | ||
344 | } else if (opt[STRING_SIZE("--tab-size")] == '=') { | |
345 | num = opt + STRING_SIZE("--tab-size="); | |
346 | } | |
347 | ||
348 | if (isdigit(*num)) | |
349 | opt_tab_size = MIN(atoi(num), TABSIZE); | |
350 | continue; | |
351 | } | |
352 | ||
353 | /** | |
b76c2afc JF |
354 | * -v, --version:: |
355 | * Show version and exit. | |
356 | **/ | |
6b161b31 | 357 | if (!strcmp(opt, "-v") || |
8855ada4 | 358 | !strcmp(opt, "--version")) { |
b76c2afc | 359 | printf("tig version %s\n", VERSION); |
8855ada4 | 360 | return FALSE; |
6b161b31 | 361 | } |
b76c2afc JF |
362 | |
363 | /** | |
4b8c01a3 JF |
364 | * -h, --help:: |
365 | * Show help message and exit. | |
366 | **/ | |
367 | if (!strcmp(opt, "-h") || | |
368 | !strcmp(opt, "--help")) { | |
369 | printf(usage); | |
370 | return FALSE; | |
371 | } | |
372 | ||
373 | /** | |
03a93dbb | 374 | * \--:: |
0721c53a | 375 | * End of tig(1) options. Useful when specifying command |
d44f34bf | 376 | * options for the main view. Example: |
03a93dbb | 377 | * |
889cb462 | 378 | * $ tig -- --since=1.month |
b76c2afc | 379 | **/ |
6908bdbd JF |
380 | if (!strcmp(opt, "--")) { |
381 | i++; | |
382 | break; | |
383 | } | |
03a93dbb | 384 | |
8855ada4 | 385 | /** |
d44f34bf | 386 | * log [git log options]:: |
8855ada4 JF |
387 | * Open log view using the given git log options. |
388 | * | |
d44f34bf | 389 | * diff [git diff options]:: |
8855ada4 JF |
390 | * Open diff view using the given git diff options. |
391 | * | |
d44f34bf | 392 | * show [git show options]:: |
8855ada4 JF |
393 | * Open diff view using the given git show options. |
394 | **/ | |
395 | if (!strcmp(opt, "log") || | |
396 | !strcmp(opt, "diff") || | |
397 | !strcmp(opt, "show")) { | |
398 | opt_request = opt[0] == 'l' | |
399 | ? REQ_VIEW_LOG : REQ_VIEW_DIFF; | |
400 | break; | |
401 | } | |
402 | ||
d44f34bf | 403 | /** |
57bdf034 | 404 | * [git log options]:: |
d44f34bf JF |
405 | * tig(1) will stop the option parsing when the first |
406 | * command line parameter not starting with "-" is | |
57bdf034 JF |
407 | * encountered. All options including this one will be |
408 | * passed to git log when loading the main view. | |
409 | * This makes it possible to say: | |
889cb462 | 410 | * |
03a93dbb | 411 | * $ tig tag-1.0..HEAD |
d44f34bf | 412 | **/ |
03a93dbb | 413 | if (opt[0] && opt[0] != '-') |
6908bdbd | 414 | break; |
6b161b31 JF |
415 | |
416 | die("unknown command '%s'", opt); | |
b76c2afc JF |
417 | } |
418 | ||
6908bdbd | 419 | if (!isatty(STDIN_FILENO)) { |
8855ada4 JF |
420 | /** |
421 | * Pager mode | |
422 | * ~~~~~~~~~~ | |
423 | * If stdin is a pipe, any log or diff options will be ignored and the | |
424 | * pager view will be opened loading data from stdin. The pager mode | |
425 | * can be used for colorizing output from various git commands. | |
426 | * | |
427 | * Example on how to colorize the output of git-show(1): | |
428 | * | |
429 | * $ git show | tig | |
430 | **/ | |
6908bdbd JF |
431 | opt_request = REQ_VIEW_PAGER; |
432 | opt_pipe = stdin; | |
433 | ||
434 | } else if (i < argc) { | |
435 | size_t buf_size; | |
436 | ||
8855ada4 JF |
437 | /** |
438 | * Git command options | |
439 | * ~~~~~~~~~~~~~~~~~~~ | |
8855ada4 JF |
440 | * All git command options specified on the command line will |
441 | * be passed to the given command and all will be shell quoted | |
468876c9 | 442 | * before they are passed to the shell. |
8855ada4 | 443 | * |
468876c9 JF |
444 | * NOTE: If you specify options for the main view, you should |
445 | * not use the `--pretty` option as this option will be set | |
446 | * automatically to the format expected by the main view. | |
8855ada4 JF |
447 | * |
448 | * Example on how to open the log view and show both author and | |
449 | * committer information: | |
450 | * | |
451 | * $ tig log --pretty=fuller | |
468876c9 | 452 | * |
0721c53a JF |
453 | * See the <<refspec, "Specifying revisions">> section below |
454 | * for an introduction to revision options supported by the git | |
455 | * commands. For details on specific git command options, refer | |
456 | * to the man page of the command in question. | |
8855ada4 JF |
457 | **/ |
458 | ||
6908bdbd | 459 | if (opt_request == REQ_VIEW_MAIN) |
8855ada4 JF |
460 | /* XXX: This is vulnerable to the user overriding |
461 | * options required for the main view parser. */ | |
6908bdbd JF |
462 | string_copy(opt_cmd, "git log --stat --pretty=raw"); |
463 | else | |
464 | string_copy(opt_cmd, "git"); | |
465 | buf_size = strlen(opt_cmd); | |
466 | ||
467 | while (buf_size < sizeof(opt_cmd) && i < argc) { | |
468 | opt_cmd[buf_size++] = ' '; | |
469 | buf_size = sq_quote(opt_cmd, buf_size, argv[i++]); | |
470 | } | |
471 | ||
472 | if (buf_size >= sizeof(opt_cmd)) | |
473 | die("command too long"); | |
474 | ||
475 | opt_cmd[buf_size] = 0; | |
476 | ||
477 | } | |
478 | ||
afdc35b3 JF |
479 | if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8")) |
480 | opt_utf8 = FALSE; | |
481 | ||
8855ada4 | 482 | return TRUE; |
b76c2afc JF |
483 | } |
484 | ||
485 | ||
219ee52a JF |
486 | /** |
487 | * ENVIRONMENT VARIABLES | |
488 | * --------------------- | |
489 | * Several options related to the interface with git can be configured | |
490 | * via environment options. | |
491 | * | |
492 | * Repository references | |
493 | * ~~~~~~~~~~~~~~~~~~~~~ | |
494 | * Commits that are referenced by tags and branch heads will be marked | |
495 | * by the reference name surrounded by '[' and ']': | |
496 | * | |
497 | * 2006-03-26 19:42 Petr Baudis | [cogito-0.17.1] Cogito 0.17.1 | |
498 | * | |
499 | * If you want to filter out certain directories under `.git/refs/`, say | |
500 | * `tmp` you can do it by setting the following variable: | |
501 | * | |
502 | * $ TIG_LS_REMOTE="git ls-remote . | sed /\/tmp\//d" tig | |
503 | * | |
504 | * Or set the variable permanently in your environment. | |
505 | * | |
506 | * TIG_LS_REMOTE:: | |
507 | * Set command for retrieving all repository references. The command | |
508 | * should output data in the same format as git-ls-remote(1). | |
509 | **/ | |
510 | ||
511 | #define TIG_LS_REMOTE \ | |
512 | "git ls-remote . 2>/dev/null" | |
513 | ||
514 | /** | |
55565c51 JF |
515 | * [[history-commands]] |
516 | * History commands | |
517 | * ~~~~~~~~~~~~~~~~ | |
219ee52a JF |
518 | * It is possible to alter which commands are used for the different views. |
519 | * If for example you prefer commits in the main view to be sorted by date | |
520 | * and only show 500 commits, use: | |
521 | * | |
522 | * $ TIG_MAIN_CMD="git log --date-order -n500 --pretty=raw %s" tig | |
523 | * | |
524 | * Or set the variable permanently in your environment. | |
525 | * | |
526 | * Notice, how `%s` is used to specify the commit reference. There can | |
527 | * be a maximum of 5 `%s` ref specifications. | |
528 | * | |
529 | * TIG_DIFF_CMD:: | |
530 | * The command used for the diff view. By default, git show is used | |
531 | * as a backend. | |
532 | * | |
533 | * TIG_LOG_CMD:: | |
534 | * The command used for the log view. If you prefer to have both | |
535 | * author and committer shown in the log view be sure to pass | |
536 | * `--pretty=fuller` to git log. | |
537 | * | |
538 | * TIG_MAIN_CMD:: | |
539 | * The command used for the main view. Note, you must always specify | |
540 | * the option: `--pretty=raw` since the main view parser expects to | |
541 | * read that format. | |
542 | **/ | |
543 | ||
544 | #define TIG_DIFF_CMD \ | |
545 | "git show --patch-with-stat --find-copies-harder -B -C %s" | |
546 | ||
547 | #define TIG_LOG_CMD \ | |
548 | "git log --cc --stat -n100 %s" | |
549 | ||
550 | #define TIG_MAIN_CMD \ | |
551 | "git log --topo-order --stat --pretty=raw %s" | |
552 | ||
553 | /* ... silently ignore that the following are also exported. */ | |
554 | ||
555 | #define TIG_HELP_CMD \ | |
556 | "man tig 2>/dev/null" | |
557 | ||
558 | #define TIG_PAGER_CMD \ | |
559 | "" | |
560 | ||
561 | ||
660e09ad JF |
562 | /** |
563 | * FILES | |
564 | * ----- | |
565 | * '~/.tig':: | |
566 | * User configuration file. See "<<config-options, Configuration options>>" | |
567 | * section for examples. | |
568 | * | |
569 | * '.git/config':: | |
570 | * Repository config file. Read on startup with the help of | |
571 | * git-repo-config(1). | |
572 | **/ | |
573 | /** | |
574 | * [[config-options]] | |
575 | * User Configuration file | |
576 | * ----------------------- | |
577 | * You can permanently set an option by putting it in the `~/.tig` file. | |
578 | * The file consists of a series of 'commands'. Each | |
579 | * line of the file may contain only one command. | |
580 | * | |
581 | * The hash mark ('#'), or semi-colon (';') is used as a 'comment' character. | |
582 | * All text after the comment character to the end of the line is ignored. | |
583 | * You can use comments to annotate your initialization file. | |
584 | * | |
bec81df9 | 585 | * Some sample options: |
660e09ad | 586 | * |
bec81df9 JF |
587 | * ========================================================================== |
588 | * # Diff colors | |
589 | * color diff-header yellow default | |
590 | * color diff-index blue default | |
591 | * color diff-chunk magenta default | |
592 | * # UI colors | |
593 | * color title-blur white blue | |
594 | * color title-focus white blue bold | |
595 | * ========================================================================== | |
660e09ad | 596 | * |
bec81df9 JF |
597 | * [[color-options]] |
598 | * Color options | |
599 | * ~~~~~~~~~~~~~ | |
600 | * Color options control highlighting and the user interface styles. | |
660e09ad | 601 | * If your terminal supports color, these commands can be used to assign |
bec81df9 JF |
602 | * foreground/backgound combinations to certain areas. Optionally, an |
603 | * attribute can be given as the last parameter. The syntax is: | |
660e09ad | 604 | * |
bec81df9 JF |
605 | * [verse] |
606 | * .......................................................................... | |
607 | * *color* 'area' 'fgcolor' 'bgcolor' '[attributes]' | |
608 | * .......................................................................... | |
660e09ad | 609 | * |
bec81df9 JF |
610 | * Valid colors include: *white*, *black*, *green*, *magenta*, *blue*, *cyan*, |
611 | * *yellow*, *red*, *default*. Use *default* to refer to the default terminal | |
660e09ad JF |
612 | * colors. |
613 | **/ | |
614 | ||
615 | static struct int_map color_map[] = { | |
616 | #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name } | |
617 | COLOR_MAP(DEFAULT), | |
618 | COLOR_MAP(BLACK), | |
619 | COLOR_MAP(BLUE), | |
620 | COLOR_MAP(CYAN), | |
621 | COLOR_MAP(GREEN), | |
622 | COLOR_MAP(MAGENTA), | |
623 | COLOR_MAP(RED), | |
624 | COLOR_MAP(WHITE), | |
625 | COLOR_MAP(YELLOW), | |
626 | }; | |
627 | ||
628 | /** | |
bec81df9 JF |
629 | * Valid attributes include: *normal*, *blink*, *bold*, *dim*, *reverse*, *standout*, |
630 | * and *underline*. Note, not all attributes may be supported by the terminal. | |
660e09ad JF |
631 | **/ |
632 | ||
633 | static struct int_map attr_map[] = { | |
634 | #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name } | |
635 | ATTR_MAP(NORMAL), | |
636 | ATTR_MAP(BLINK), | |
637 | ATTR_MAP(BOLD), | |
638 | ATTR_MAP(DIM), | |
639 | ATTR_MAP(REVERSE), | |
640 | ATTR_MAP(STANDOUT), | |
641 | ATTR_MAP(UNDERLINE), | |
642 | }; | |
643 | ||
644 | /** | |
bec81df9 JF |
645 | * Valid area names are described below. Note, all names are case-insensitive, |
646 | * and you may use '-', '_', and '.' interchangeably. So "Diff-Header", | |
647 | * "DIFF_HEADER", and "diff.header" are the same. | |
660e09ad JF |
648 | * |
649 | * -- | |
650 | **/ | |
2e8488b4 | 651 | #define LINE_INFO \ |
660e09ad JF |
652 | /** |
653 | * Diff markup:: | |
654 | * | |
bec81df9 | 655 | * Options concerning diff start, chunks and lines added and deleted. |
660e09ad | 656 | * |
bec81df9 | 657 | * *diff-header*, *diff-chunk*, *diff-add*, *diff-del* |
660e09ad JF |
658 | **/ \ |
659 | LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
a28bcc22 JF |
660 | LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
661 | LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
662 | LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \ | |
660e09ad JF |
663 | /** |
664 | * Enhanced git diff markup:: | |
665 | * | |
666 | * Extra diff information emitted by the git diff machinery, such as mode | |
667 | * changes, rename detection, and similarity. | |
668 | * | |
bec81df9 JF |
669 | * *diff-oldmode*, *diff-newmode*, *diff-copy-from*, *diff-copy-to*, |
670 | * *diff-rename-from*, *diff-rename-to*, *diff-similarity* *diff-dissimilarity* | |
671 | * *diff-tree*, *diff-index* | |
660e09ad JF |
672 | **/ \ |
673 | LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
674 | LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
675 | LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
676 | LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
677 | LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
678 | LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
679 | LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
680 | LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
681 | LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
682 | LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
683 | /** | |
684 | * Pretty print commit headers:: | |
685 | * | |
686 | * Commit diffs and the revision logs are usually formatted using pretty | |
687 | * printed headers , unless `--pretty=raw` was given. This includes lines, | |
688 | * such as merge info, commit ID, and author and comitter date. | |
689 | * | |
bec81df9 | 690 | * *pp-author*, *pp-commit*, *pp-merge*, *pp-date*, *pp-adate*, *pp-cdate* |
660e09ad | 691 | **/ \ |
6908bdbd | 692 | LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
8855ada4 | 693 | LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
6908bdbd JF |
694 | LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
695 | LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
8855ada4 JF |
696 | LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
697 | LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
660e09ad JF |
698 | /** |
699 | * Raw commit header:: | |
700 | * | |
701 | * Usually shown when `--pretty=raw` is given, however 'commit' is pretty | |
702 | * much omnipresent. | |
703 | * | |
bec81df9 | 704 | * *commit*, *parent*, *tree*, *author*, *committer* |
660e09ad | 705 | **/ \ |
a28bcc22 JF |
706 | LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \ |
707 | LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
708 | LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
8855ada4 | 709 | LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
a28bcc22 | 710 | LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
660e09ad JF |
711 | /** |
712 | * Commit message:: | |
713 | * | |
714 | * For now only `Signed-off-by lines` are colorized. | |
715 | * | |
bec81df9 | 716 | * *signoff* |
660e09ad | 717 | **/ \ |
a28bcc22 | 718 | LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
660e09ad JF |
719 | /** |
720 | * UI colors:: | |
721 | * | |
bec81df9 | 722 | * Colors for text not matching any of the above: *default* |
660e09ad | 723 | * |
bec81df9 | 724 | * Status window colors: *status* |
660e09ad | 725 | * |
bec81df9 | 726 | * Title window colors: *title-blur*, *title-focus* |
660e09ad | 727 | * |
bec81df9 | 728 | * Cursor line colors: *cursor* |
660e09ad | 729 | * |
bec81df9 JF |
730 | * Main view specific: *main-date*, *main-author*, *main-commit*, *main-delim*, |
731 | * *main-tag*, *main-ref* | |
660e09ad | 732 | **/ \ |
a28bcc22 JF |
733 | LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \ |
734 | LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \ | |
735 | LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
6b161b31 JF |
736 | LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \ |
737 | LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \ | |
a28bcc22 JF |
738 | LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
739 | LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
740 | LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \ | |
c34d9c9f JF |
741 | LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
742 | LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \ | |
660e09ad JF |
743 | LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \ |
744 | /** | |
745 | * -- | |
746 | **/ | |
747 | ||
748 | ||
749 | /* | |
750 | * Line-oriented content detection. | |
751 | */ | |
2e8488b4 | 752 | |
78c70acd | 753 | enum line_type { |
2e8488b4 JF |
754 | #define LINE(type, line, fg, bg, attr) \ |
755 | LINE_##type | |
756 | LINE_INFO | |
757 | #undef LINE | |
78c70acd JF |
758 | }; |
759 | ||
760 | struct line_info { | |
660e09ad JF |
761 | const char *name; /* Option name. */ |
762 | int namelen; /* Size of option name. */ | |
4685845e | 763 | const char *line; /* The start of line to match. */ |
2e8488b4 JF |
764 | int linelen; /* Size of string to match. */ |
765 | int fg, bg, attr; /* Color and text attributes for the lines. */ | |
78c70acd JF |
766 | }; |
767 | ||
2e8488b4 | 768 | static struct line_info line_info[] = { |
78c70acd | 769 | #define LINE(type, line, fg, bg, attr) \ |
660e09ad | 770 | { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) } |
2e8488b4 JF |
771 | LINE_INFO |
772 | #undef LINE | |
78c70acd JF |
773 | }; |
774 | ||
2e8488b4 JF |
775 | static enum line_type |
776 | get_line_type(char *line) | |
78c70acd JF |
777 | { |
778 | int linelen = strlen(line); | |
a28bcc22 | 779 | enum line_type type; |
78c70acd | 780 | |
a28bcc22 | 781 | for (type = 0; type < ARRAY_SIZE(line_info); type++) |
2e8488b4 | 782 | /* Case insensitive search matches Signed-off-by lines better. */ |
a28bcc22 JF |
783 | if (linelen >= line_info[type].linelen && |
784 | !strncasecmp(line_info[type].line, line, line_info[type].linelen)) | |
785 | return type; | |
78c70acd | 786 | |
2e8488b4 | 787 | return LINE_DEFAULT; |
78c70acd JF |
788 | } |
789 | ||
2e8488b4 | 790 | static inline int |
78c70acd JF |
791 | get_line_attr(enum line_type type) |
792 | { | |
2e8488b4 JF |
793 | assert(type < ARRAY_SIZE(line_info)); |
794 | return COLOR_PAIR(type) | line_info[type].attr; | |
78c70acd JF |
795 | } |
796 | ||
660e09ad JF |
797 | static struct line_info * |
798 | get_line_info(char *name, int namelen) | |
799 | { | |
800 | enum line_type type; | |
801 | int i; | |
802 | ||
803 | /* Diff-Header -> DIFF_HEADER */ | |
804 | for (i = 0; i < namelen; i++) { | |
805 | if (name[i] == '-') | |
806 | name[i] = '_'; | |
807 | else if (name[i] == '.') | |
808 | name[i] = '_'; | |
809 | } | |
810 | ||
811 | for (type = 0; type < ARRAY_SIZE(line_info); type++) | |
812 | if (namelen == line_info[type].namelen && | |
813 | !strncasecmp(line_info[type].name, name, namelen)) | |
814 | return &line_info[type]; | |
815 | ||
816 | return NULL; | |
817 | } | |
818 | ||
78c70acd JF |
819 | static void |
820 | init_colors(void) | |
821 | { | |
82e78006 JF |
822 | int default_bg = COLOR_BLACK; |
823 | int default_fg = COLOR_WHITE; | |
a28bcc22 | 824 | enum line_type type; |
78c70acd JF |
825 | |
826 | start_color(); | |
827 | ||
828 | if (use_default_colors() != ERR) { | |
82e78006 JF |
829 | default_bg = -1; |
830 | default_fg = -1; | |
78c70acd JF |
831 | } |
832 | ||
a28bcc22 JF |
833 | for (type = 0; type < ARRAY_SIZE(line_info); type++) { |
834 | struct line_info *info = &line_info[type]; | |
82e78006 JF |
835 | int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg; |
836 | int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg; | |
78c70acd | 837 | |
a28bcc22 | 838 | init_pair(type, fg, bg); |
78c70acd JF |
839 | } |
840 | } | |
841 | ||
fe7233c3 JF |
842 | struct line { |
843 | enum line_type type; | |
844 | void *data; /* User data */ | |
845 | }; | |
846 | ||
78c70acd | 847 | |
1899507c JF |
848 | /* |
849 | * User config file handling. | |
850 | */ | |
851 | ||
660e09ad JF |
852 | #define set_color(color, name, namelen) \ |
853 | set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, namelen) | |
854 | ||
855 | #define set_attribute(attr, name, namelen) \ | |
856 | set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, namelen) | |
857 | ||
858 | static int | |
859 | read_option(char *opt, int optlen, char *value, int valuelen) | |
860 | { | |
861 | optlen = strcspn(opt, "#;"); | |
1899507c | 862 | if (optlen == 0) { |
660e09ad JF |
863 | /* The whole line is a comment. */ |
864 | return OK; | |
865 | ||
1899507c | 866 | } else if (opt[optlen] != 0) { |
660e09ad JF |
867 | /* Part of the option name is a comment, so the value part |
868 | * should be ignored. */ | |
869 | valuelen = 0; | |
1899507c JF |
870 | opt[optlen] = value[valuelen] = 0; |
871 | } else { | |
660e09ad JF |
872 | /* Else look for comment endings in the value. */ |
873 | valuelen = strcspn(value, "#;"); | |
1899507c JF |
874 | value[valuelen] = 0; |
875 | } | |
660e09ad JF |
876 | |
877 | /* Reads: "color" object fgcolor bgcolor [attr] */ | |
878 | if (!strcmp(opt, "color")) { | |
879 | struct line_info *info; | |
880 | ||
881 | value = chomp_string(value); | |
882 | valuelen = strcspn(value, " \t"); | |
883 | info = get_line_info(value, valuelen); | |
884 | if (!info) | |
885 | return ERR; | |
886 | ||
887 | value = chomp_string(value + valuelen); | |
888 | valuelen = strcspn(value, " \t"); | |
889 | if (set_color(&info->fg, value, valuelen) == ERR) | |
890 | return ERR; | |
891 | ||
892 | value = chomp_string(value + valuelen); | |
893 | valuelen = strcspn(value, " \t"); | |
894 | if (set_color(&info->bg, value, valuelen) == ERR) | |
895 | return ERR; | |
896 | ||
897 | value = chomp_string(value + valuelen); | |
898 | if (*value && | |
899 | set_attribute(&info->attr, value, strlen(value)) == ERR) | |
900 | return ERR; | |
901 | ||
902 | return OK; | |
903 | } | |
904 | ||
905 | return ERR; | |
906 | } | |
907 | ||
908 | static int | |
909 | load_options(void) | |
910 | { | |
911 | char *home = getenv("HOME"); | |
912 | char buf[1024]; | |
913 | FILE *file; | |
914 | ||
915 | if (!home || | |
916 | snprintf(buf, sizeof(buf), "%s/.tig", home) >= sizeof(buf)) | |
917 | return ERR; | |
918 | ||
919 | /* It's ok that the file doesn't exist. */ | |
920 | file = fopen(buf, "r"); | |
921 | if (!file) | |
922 | return OK; | |
923 | ||
924 | return read_properties(file, " \t", read_option); | |
925 | } | |
926 | ||
927 | ||
1ba2ae4b | 928 | /** |
468876c9 JF |
929 | * The viewer |
930 | * ---------- | |
c2124ccd JF |
931 | * The display consists of a status window on the last line of the screen and |
932 | * one or more views. The default is to only show one view at the time but it | |
933 | * is possible to split both the main and log view to also show the commit | |
934 | * diff. | |
468876c9 | 935 | * |
c2124ccd JF |
936 | * If you are in the log view and press 'Enter' when the current line is a |
937 | * commit line, such as: | |
468876c9 | 938 | * |
c2124ccd | 939 | * commit 4d55caff4cc89335192f3e566004b4ceef572521 |
468876c9 | 940 | * |
c2124ccd JF |
941 | * You will split the view so that the log view is displayed in the top window |
942 | * and the diff view in the bottom window. You can switch between the two | |
943 | * views by pressing 'Tab'. To maximize the log view again, simply press 'l'. | |
944 | **/ | |
945 | ||
946 | struct view; | |
fe7233c3 | 947 | struct view_ops; |
c2124ccd JF |
948 | |
949 | /* The display array of active views and the index of the current view. */ | |
950 | static struct view *display[2]; | |
951 | static unsigned int current_view; | |
952 | ||
953 | #define foreach_view(view, i) \ | |
954 | for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++) | |
955 | ||
9f41488f | 956 | #define displayed_views() (display[1] != NULL ? 2 : 1) |
c2124ccd JF |
957 | |
958 | /** | |
959 | * Current head and commit ID | |
960 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
961 | * The viewer keeps track of both what head and commit ID you are currently | |
962 | * viewing. The commit ID will follow the cursor line and change everytime time | |
963 | * you highlight a different commit. Whenever you reopen the diff view it | |
964 | * will be reloaded, if the commit ID changed. | |
468876c9 | 965 | * |
c2124ccd JF |
966 | * The head ID is used when opening the main and log view to indicate from |
967 | * what revision to show history. | |
468876c9 | 968 | **/ |
b801d8b2 | 969 | |
c2124ccd JF |
970 | static char ref_commit[SIZEOF_REF] = "HEAD"; |
971 | static char ref_head[SIZEOF_REF] = "HEAD"; | |
972 | ||
b801d8b2 | 973 | struct view { |
03a93dbb | 974 | const char *name; /* View name */ |
4685845e TH |
975 | const char *cmd_fmt; /* Default command line format */ |
976 | const char *cmd_env; /* Command line set via environment */ | |
977 | const char *id; /* Points to either of ref_{head,commit} */ | |
6b161b31 | 978 | |
fe7233c3 | 979 | struct view_ops *ops; /* View operations */ |
22f66b0a | 980 | |
03a93dbb | 981 | char cmd[SIZEOF_CMD]; /* Command buffer */ |
49f2b43f JF |
982 | char ref[SIZEOF_REF]; /* Hovered commit reference */ |
983 | char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */ | |
2e8488b4 | 984 | |
8855ada4 JF |
985 | int height, width; /* The width and height of the main window */ |
986 | WINDOW *win; /* The main window */ | |
987 | WINDOW *title; /* The title window living below the main window */ | |
b801d8b2 JF |
988 | |
989 | /* Navigation */ | |
990 | unsigned long offset; /* Offset of the window top */ | |
991 | unsigned long lineno; /* Current line number */ | |
992 | ||
f6da0b66 JF |
993 | /* If non-NULL, points to the view that opened this view. If this view |
994 | * is closed tig will switch back to the parent view. */ | |
995 | struct view *parent; | |
996 | ||
b801d8b2 JF |
997 | /* Buffering */ |
998 | unsigned long lines; /* Total number of lines */ | |
fe7233c3 | 999 | struct line *line; /* Line index */ |
8855ada4 | 1000 | unsigned int digits; /* Number of digits in the lines member. */ |
b801d8b2 JF |
1001 | |
1002 | /* Loading */ | |
1003 | FILE *pipe; | |
2e8488b4 | 1004 | time_t start_time; |
b801d8b2 JF |
1005 | }; |
1006 | ||
fe7233c3 JF |
1007 | struct view_ops { |
1008 | /* What type of content being displayed. Used in the title bar. */ | |
1009 | const char *type; | |
1010 | /* Draw one line; @lineno must be < view->height. */ | |
1011 | bool (*draw)(struct view *view, struct line *line, unsigned int lineno); | |
1012 | /* Read one line; updates view->line. */ | |
1013 | bool (*read)(struct view *view, struct line *prev, char *data); | |
1014 | /* Depending on view, change display based on current line. */ | |
1015 | bool (*enter)(struct view *view, struct line *line); | |
1016 | }; | |
1017 | ||
6b161b31 JF |
1018 | static struct view_ops pager_ops; |
1019 | static struct view_ops main_ops; | |
a28bcc22 | 1020 | |
95d7ddcd JF |
1021 | #define VIEW_STR(name, cmd, env, ref, ops) \ |
1022 | { name, cmd, #env, ref, ops } | |
1ba2ae4b | 1023 | |
95d7ddcd JF |
1024 | #define VIEW_(id, name, ops, ref) \ |
1025 | VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops) | |
1ba2ae4b | 1026 | |
c2124ccd JF |
1027 | /** |
1028 | * Views | |
1029 | * ~~~~~ | |
1030 | * tig(1) presents various 'views' of a repository. Each view is based on output | |
1031 | * from an external command, most often 'git log', 'git diff', or 'git show'. | |
1032 | * | |
1033 | * The main view:: | |
1034 | * Is the default view, and it shows a one line summary of each commit | |
1035 | * in the chosen list of revisions. The summary includes commit date, | |
1036 | * author, and the first line of the log message. Additionally, any | |
1037 | * repository references, such as tags, will be shown. | |
1038 | * | |
1039 | * The log view:: | |
1040 | * Presents a more rich view of the revision log showing the whole log | |
1041 | * message and the diffstat. | |
1042 | * | |
1043 | * The diff view:: | |
1044 | * Shows either the diff of the current working tree, that is, what | |
1045 | * has changed since the last commit, or the commit diff complete | |
1046 | * with log message, diffstat and diff. | |
1047 | * | |
1048 | * The pager view:: | |
1049 | * Is used for displaying both input from stdin and output from git | |
1050 | * commands entered in the internal prompt. | |
1051 | * | |
1052 | * The help view:: | |
1053 | * Displays the information from the tig(1) man page. For the help view | |
1054 | * to work you need to have the tig(1) man page installed. | |
1055 | **/ | |
1056 | ||
b801d8b2 | 1057 | static struct view views[] = { |
95d7ddcd JF |
1058 | VIEW_(MAIN, "main", &main_ops, ref_head), |
1059 | VIEW_(DIFF, "diff", &pager_ops, ref_commit), | |
1060 | VIEW_(LOG, "log", &pager_ops, ref_head), | |
1061 | VIEW_(HELP, "help", &pager_ops, "static"), | |
1062 | VIEW_(PAGER, "pager", &pager_ops, "static"), | |
b801d8b2 JF |
1063 | }; |
1064 | ||
a28bcc22 JF |
1065 | #define VIEW(req) (&views[(req) - REQ_OFFSET - 1]) |
1066 | ||
4c6fabc2 | 1067 | |
fe7233c3 JF |
1068 | static bool |
1069 | draw_view_line(struct view *view, unsigned int lineno) | |
1070 | { | |
1071 | if (view->offset + lineno >= view->lines) | |
1072 | return FALSE; | |
1073 | ||
1074 | return view->ops->draw(view, &view->line[view->offset + lineno], lineno); | |
1075 | } | |
1076 | ||
b801d8b2 | 1077 | static void |
82e78006 | 1078 | redraw_view_from(struct view *view, int lineno) |
b801d8b2 | 1079 | { |
82e78006 | 1080 | assert(0 <= lineno && lineno < view->height); |
b801d8b2 | 1081 | |
82e78006 | 1082 | for (; lineno < view->height; lineno++) { |
fe7233c3 | 1083 | if (!draw_view_line(view, lineno)) |
fd85fef1 | 1084 | break; |
b801d8b2 JF |
1085 | } |
1086 | ||
1087 | redrawwin(view->win); | |
1088 | wrefresh(view->win); | |
1089 | } | |
1090 | ||
b76c2afc | 1091 | static void |
82e78006 JF |
1092 | redraw_view(struct view *view) |
1093 | { | |
1094 | wclear(view->win); | |
1095 | redraw_view_from(view, 0); | |
1096 | } | |
1097 | ||
c2124ccd JF |
1098 | |
1099 | /** | |
1100 | * Title windows | |
1101 | * ~~~~~~~~~~~~~ | |
1102 | * Each view has a title window which shows the name of the view, current | |
1103 | * commit ID if available, and where the view is positioned: | |
1104 | * | |
1105 | * [main] c622eefaa485995320bc743431bae0d497b1d875 - commit 1 of 61 (1%) | |
1106 | * | |
1107 | * By default, the title of the current view is highlighted using bold font. | |
9a666315 JF |
1108 | * For long loading views (taking over 3 seconds) the time since loading |
1109 | * started will be appended: | |
1110 | * | |
1111 | * [main] 77d9e40fbcea3238015aea403e06f61542df9a31 - commit 1 of 779 (0%) 5s | |
c2124ccd JF |
1112 | **/ |
1113 | ||
6b161b31 | 1114 | static void |
81030ec8 JF |
1115 | update_view_title(struct view *view) |
1116 | { | |
1117 | if (view == display[current_view]) | |
1118 | wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS)); | |
1119 | else | |
1120 | wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR)); | |
1121 | ||
1122 | werase(view->title); | |
1123 | wmove(view->title, 0, 0); | |
1124 | ||
81030ec8 JF |
1125 | if (*view->ref) |
1126 | wprintw(view->title, "[%s] %s", view->name, view->ref); | |
1127 | else | |
1128 | wprintw(view->title, "[%s]", view->name); | |
1129 | ||
c19f8017 JF |
1130 | if (view->lines || view->pipe) { |
1131 | unsigned int lines = view->lines | |
1132 | ? (view->lineno + 1) * 100 / view->lines | |
1133 | : 0; | |
1134 | ||
81030ec8 JF |
1135 | wprintw(view->title, " - %s %d of %d (%d%%)", |
1136 | view->ops->type, | |
1137 | view->lineno + 1, | |
1138 | view->lines, | |
c19f8017 | 1139 | lines); |
81030ec8 JF |
1140 | } |
1141 | ||
f97f4012 JF |
1142 | if (view->pipe) { |
1143 | time_t secs = time(NULL) - view->start_time; | |
1144 | ||
1145 | /* Three git seconds are a long time ... */ | |
1146 | if (secs > 2) | |
1147 | wprintw(view->title, " %lds", secs); | |
1148 | } | |
1149 | ||
976447f8 | 1150 | wmove(view->title, 0, view->width - 1); |
81030ec8 JF |
1151 | wrefresh(view->title); |
1152 | } | |
1153 | ||
1154 | static void | |
6b161b31 | 1155 | resize_display(void) |
b76c2afc | 1156 | { |
03a93dbb | 1157 | int offset, i; |
6b161b31 JF |
1158 | struct view *base = display[0]; |
1159 | struct view *view = display[1] ? display[1] : display[0]; | |
b76c2afc | 1160 | |
6b161b31 | 1161 | /* Setup window dimensions */ |
b76c2afc | 1162 | |
03a93dbb | 1163 | getmaxyx(stdscr, base->height, base->width); |
b76c2afc | 1164 | |
6b161b31 | 1165 | /* Make room for the status window. */ |
03a93dbb | 1166 | base->height -= 1; |
6b161b31 JF |
1167 | |
1168 | if (view != base) { | |
03a93dbb JF |
1169 | /* Horizontal split. */ |
1170 | view->width = base->width; | |
6b161b31 JF |
1171 | view->height = SCALE_SPLIT_VIEW(base->height); |
1172 | base->height -= view->height; | |
1173 | ||
1174 | /* Make room for the title bar. */ | |
1175 | view->height -= 1; | |
1176 | } | |
1177 | ||
1178 | /* Make room for the title bar. */ | |
1179 | base->height -= 1; | |
1180 | ||
1181 | offset = 0; | |
1182 | ||
1183 | foreach_view (view, i) { | |
b76c2afc | 1184 | if (!view->win) { |
c19f8017 | 1185 | view->win = newwin(view->height, 0, offset, 0); |
6b161b31 JF |
1186 | if (!view->win) |
1187 | die("Failed to create %s view", view->name); | |
1188 | ||
1189 | scrollok(view->win, TRUE); | |
1190 | ||
1191 | view->title = newwin(1, 0, offset + view->height, 0); | |
1192 | if (!view->title) | |
1193 | die("Failed to create title window"); | |
1194 | ||
1195 | } else { | |
c19f8017 | 1196 | wresize(view->win, view->height, view->width); |
6b161b31 JF |
1197 | mvwin(view->win, offset, 0); |
1198 | mvwin(view->title, offset + view->height, 0); | |
a28bcc22 | 1199 | } |
a28bcc22 | 1200 | |
6b161b31 | 1201 | offset += view->height + 1; |
b76c2afc | 1202 | } |
6b161b31 | 1203 | } |
b76c2afc | 1204 | |
6b161b31 | 1205 | static void |
20bb5e18 JF |
1206 | redraw_display(void) |
1207 | { | |
1208 | struct view *view; | |
1209 | int i; | |
1210 | ||
1211 | foreach_view (view, i) { | |
1212 | redraw_view(view); | |
1213 | update_view_title(view); | |
1214 | } | |
1215 | } | |
1216 | ||
85af6284 JF |
1217 | static void |
1218 | update_display_cursor(void) | |
1219 | { | |
1220 | struct view *view = display[current_view]; | |
1221 | ||
1222 | /* Move the cursor to the right-most column of the cursor line. | |
1223 | * | |
1224 | * XXX: This could turn out to be a bit expensive, but it ensures that | |
1225 | * the cursor does not jump around. */ | |
1226 | if (view->lines) { | |
1227 | wmove(view->win, view->lineno - view->offset, view->width - 1); | |
1228 | wrefresh(view->win); | |
1229 | } | |
1230 | } | |
20bb5e18 | 1231 | |
2e8488b4 JF |
1232 | /* |
1233 | * Navigation | |
1234 | */ | |
1235 | ||
4a2909a7 | 1236 | /* Scrolling backend */ |
b801d8b2 | 1237 | static void |
b3a54cba | 1238 | do_scroll_view(struct view *view, int lines, bool redraw) |
b801d8b2 | 1239 | { |
fd85fef1 JF |
1240 | /* The rendering expects the new offset. */ |
1241 | view->offset += lines; | |
1242 | ||
1243 | assert(0 <= view->offset && view->offset < view->lines); | |
1244 | assert(lines); | |
b801d8b2 | 1245 | |
82e78006 | 1246 | /* Redraw the whole screen if scrolling is pointless. */ |
4c6fabc2 | 1247 | if (view->height < ABS(lines)) { |
b76c2afc JF |
1248 | redraw_view(view); |
1249 | ||
1250 | } else { | |
22f66b0a | 1251 | int line = lines > 0 ? view->height - lines : 0; |
82e78006 | 1252 | int end = line + ABS(lines); |
fd85fef1 JF |
1253 | |
1254 | wscrl(view->win, lines); | |
1255 | ||
22f66b0a | 1256 | for (; line < end; line++) { |
fe7233c3 | 1257 | if (!draw_view_line(view, line)) |
fd85fef1 JF |
1258 | break; |
1259 | } | |
1260 | } | |
1261 | ||
1262 | /* Move current line into the view. */ | |
1263 | if (view->lineno < view->offset) { | |
1264 | view->lineno = view->offset; | |
fe7233c3 | 1265 | draw_view_line(view, 0); |
fd85fef1 JF |
1266 | |
1267 | } else if (view->lineno >= view->offset + view->height) { | |
6706b2ba JF |
1268 | if (view->lineno == view->offset + view->height) { |
1269 | /* Clear the hidden line so it doesn't show if the view | |
1270 | * is scrolled up. */ | |
1271 | wmove(view->win, view->height, 0); | |
1272 | wclrtoeol(view->win); | |
1273 | } | |
fd85fef1 | 1274 | view->lineno = view->offset + view->height - 1; |
fe7233c3 | 1275 | draw_view_line(view, view->lineno - view->offset); |
fd85fef1 JF |
1276 | } |
1277 | ||
4c6fabc2 | 1278 | assert(view->offset <= view->lineno && view->lineno < view->lines); |
fd85fef1 | 1279 | |
b3a54cba JF |
1280 | if (!redraw) |
1281 | return; | |
1282 | ||
fd85fef1 JF |
1283 | redrawwin(view->win); |
1284 | wrefresh(view->win); | |
9d3f5834 | 1285 | report(""); |
fd85fef1 | 1286 | } |
78c70acd | 1287 | |
4a2909a7 | 1288 | /* Scroll frontend */ |
fd85fef1 | 1289 | static void |
6b161b31 | 1290 | scroll_view(struct view *view, enum request request) |
fd85fef1 JF |
1291 | { |
1292 | int lines = 1; | |
b801d8b2 JF |
1293 | |
1294 | switch (request) { | |
4a2909a7 | 1295 | case REQ_SCROLL_PAGE_DOWN: |
fd85fef1 | 1296 | lines = view->height; |
4a2909a7 | 1297 | case REQ_SCROLL_LINE_DOWN: |
b801d8b2 | 1298 | if (view->offset + lines > view->lines) |
bde3653a | 1299 | lines = view->lines - view->offset; |
b801d8b2 | 1300 | |
fd85fef1 | 1301 | if (lines == 0 || view->offset + view->height >= view->lines) { |
eb98559e | 1302 | report("Cannot scroll beyond the last line"); |
b801d8b2 JF |
1303 | return; |
1304 | } | |
1305 | break; | |
1306 | ||
4a2909a7 | 1307 | case REQ_SCROLL_PAGE_UP: |
fd85fef1 | 1308 | lines = view->height; |
4a2909a7 | 1309 | case REQ_SCROLL_LINE_UP: |
b801d8b2 JF |
1310 | if (lines > view->offset) |
1311 | lines = view->offset; | |
1312 | ||
1313 | if (lines == 0) { | |
eb98559e | 1314 | report("Cannot scroll beyond the first line"); |
b801d8b2 JF |
1315 | return; |
1316 | } | |
1317 | ||
fd85fef1 | 1318 | lines = -lines; |
b801d8b2 | 1319 | break; |
03a93dbb | 1320 | |
6b161b31 JF |
1321 | default: |
1322 | die("request %d not handled in switch", request); | |
b801d8b2 JF |
1323 | } |
1324 | ||
b3a54cba | 1325 | do_scroll_view(view, lines, TRUE); |
fd85fef1 | 1326 | } |
b801d8b2 | 1327 | |
4a2909a7 | 1328 | /* Cursor moving */ |
fd85fef1 | 1329 | static void |
b3a54cba | 1330 | move_view(struct view *view, enum request request, bool redraw) |
fd85fef1 JF |
1331 | { |
1332 | int steps; | |
b801d8b2 | 1333 | |
fd85fef1 | 1334 | switch (request) { |
4a2909a7 | 1335 | case REQ_MOVE_FIRST_LINE: |
78c70acd JF |
1336 | steps = -view->lineno; |
1337 | break; | |
1338 | ||
4a2909a7 | 1339 | case REQ_MOVE_LAST_LINE: |
78c70acd JF |
1340 | steps = view->lines - view->lineno - 1; |
1341 | break; | |
1342 | ||
4a2909a7 | 1343 | case REQ_MOVE_PAGE_UP: |
78c70acd JF |
1344 | steps = view->height > view->lineno |
1345 | ? -view->lineno : -view->height; | |
1346 | break; | |
1347 | ||
4a2909a7 | 1348 | case REQ_MOVE_PAGE_DOWN: |
78c70acd JF |
1349 | steps = view->lineno + view->height >= view->lines |
1350 | ? view->lines - view->lineno - 1 : view->height; | |
1351 | break; | |
1352 | ||
4a2909a7 | 1353 | case REQ_MOVE_UP: |
fd85fef1 JF |
1354 | steps = -1; |
1355 | break; | |
b801d8b2 | 1356 | |
4a2909a7 | 1357 | case REQ_MOVE_DOWN: |
fd85fef1 JF |
1358 | steps = 1; |
1359 | break; | |
6b161b31 JF |
1360 | |
1361 | default: | |
1362 | die("request %d not handled in switch", request); | |
78c70acd | 1363 | } |
b801d8b2 | 1364 | |
4c6fabc2 | 1365 | if (steps <= 0 && view->lineno == 0) { |
eb98559e | 1366 | report("Cannot move beyond the first line"); |
78c70acd | 1367 | return; |
b801d8b2 | 1368 | |
6908bdbd | 1369 | } else if (steps >= 0 && view->lineno + 1 >= view->lines) { |
eb98559e | 1370 | report("Cannot move beyond the last line"); |
78c70acd | 1371 | return; |
fd85fef1 JF |
1372 | } |
1373 | ||
4c6fabc2 | 1374 | /* Move the current line */ |
fd85fef1 | 1375 | view->lineno += steps; |
4c6fabc2 JF |
1376 | assert(0 <= view->lineno && view->lineno < view->lines); |
1377 | ||
1378 | /* Repaint the old "current" line if we be scrolling */ | |
2e8488b4 JF |
1379 | if (ABS(steps) < view->height) { |
1380 | int prev_lineno = view->lineno - steps - view->offset; | |
1381 | ||
1382 | wmove(view->win, prev_lineno, 0); | |
1383 | wclrtoeol(view->win); | |
fe7233c3 | 1384 | draw_view_line(view, prev_lineno); |
2e8488b4 | 1385 | } |
fd85fef1 | 1386 | |
4c6fabc2 | 1387 | /* Check whether the view needs to be scrolled */ |
fd85fef1 JF |
1388 | if (view->lineno < view->offset || |
1389 | view->lineno >= view->offset + view->height) { | |
1390 | if (steps < 0 && -steps > view->offset) { | |
1391 | steps = -view->offset; | |
b76c2afc JF |
1392 | |
1393 | } else if (steps > 0) { | |
1394 | if (view->lineno == view->lines - 1 && | |
1395 | view->lines > view->height) { | |
1396 | steps = view->lines - view->offset - 1; | |
1397 | if (steps >= view->height) | |
1398 | steps -= view->height - 1; | |
1399 | } | |
b801d8b2 | 1400 | } |
78c70acd | 1401 | |
b3a54cba | 1402 | do_scroll_view(view, steps, redraw); |
fd85fef1 | 1403 | return; |
b801d8b2 JF |
1404 | } |
1405 | ||
4c6fabc2 | 1406 | /* Draw the current line */ |
fe7233c3 | 1407 | draw_view_line(view, view->lineno - view->offset); |
fd85fef1 | 1408 | |
b3a54cba JF |
1409 | if (!redraw) |
1410 | return; | |
1411 | ||
b801d8b2 JF |
1412 | redrawwin(view->win); |
1413 | wrefresh(view->win); | |
9d3f5834 | 1414 | report(""); |
b801d8b2 JF |
1415 | } |
1416 | ||
b801d8b2 | 1417 | |
2e8488b4 JF |
1418 | /* |
1419 | * Incremental updating | |
1420 | */ | |
b801d8b2 | 1421 | |
199d1288 JF |
1422 | static void |
1423 | end_update(struct view *view) | |
1424 | { | |
1425 | if (!view->pipe) | |
1426 | return; | |
1427 | set_nonblocking_input(FALSE); | |
1428 | if (view->pipe == stdin) | |
1429 | fclose(view->pipe); | |
1430 | else | |
1431 | pclose(view->pipe); | |
1432 | view->pipe = NULL; | |
1433 | } | |
1434 | ||
03a93dbb | 1435 | static bool |
b801d8b2 JF |
1436 | begin_update(struct view *view) |
1437 | { | |
4685845e | 1438 | const char *id = view->id; |
fd85fef1 | 1439 | |
199d1288 JF |
1440 | if (view->pipe) |
1441 | end_update(view); | |
1442 | ||
03a93dbb JF |
1443 | if (opt_cmd[0]) { |
1444 | string_copy(view->cmd, opt_cmd); | |
1445 | opt_cmd[0] = 0; | |
8855ada4 JF |
1446 | /* When running random commands, the view ref could have become |
1447 | * invalid so clear it. */ | |
1448 | view->ref[0] = 0; | |
03a93dbb | 1449 | } else { |
4685845e | 1450 | const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt; |
1ba2ae4b JF |
1451 | |
1452 | if (snprintf(view->cmd, sizeof(view->cmd), format, | |
1453 | id, id, id, id, id) >= sizeof(view->cmd)) | |
03a93dbb JF |
1454 | return FALSE; |
1455 | } | |
b801d8b2 | 1456 | |
6908bdbd JF |
1457 | /* Special case for the pager view. */ |
1458 | if (opt_pipe) { | |
1459 | view->pipe = opt_pipe; | |
1460 | opt_pipe = NULL; | |
1461 | } else { | |
1462 | view->pipe = popen(view->cmd, "r"); | |
1463 | } | |
1464 | ||
2e8488b4 JF |
1465 | if (!view->pipe) |
1466 | return FALSE; | |
b801d8b2 | 1467 | |
6b161b31 | 1468 | set_nonblocking_input(TRUE); |
b801d8b2 JF |
1469 | |
1470 | view->offset = 0; | |
1471 | view->lines = 0; | |
1472 | view->lineno = 0; | |
49f2b43f | 1473 | string_copy(view->vid, id); |
b801d8b2 | 1474 | |
2e8488b4 JF |
1475 | if (view->line) { |
1476 | int i; | |
1477 | ||
1478 | for (i = 0; i < view->lines; i++) | |
fe7233c3 JF |
1479 | if (view->line[i].data) |
1480 | free(view->line[i].data); | |
2e8488b4 JF |
1481 | |
1482 | free(view->line); | |
1483 | view->line = NULL; | |
1484 | } | |
1485 | ||
1486 | view->start_time = time(NULL); | |
1487 | ||
b801d8b2 JF |
1488 | return TRUE; |
1489 | } | |
1490 | ||
03a93dbb | 1491 | static bool |
b801d8b2 JF |
1492 | update_view(struct view *view) |
1493 | { | |
1494 | char buffer[BUFSIZ]; | |
1495 | char *line; | |
fe7233c3 | 1496 | struct line *tmp; |
82e78006 JF |
1497 | /* The number of lines to read. If too low it will cause too much |
1498 | * redrawing (and possible flickering), if too high responsiveness | |
1499 | * will suffer. */ | |
8855ada4 | 1500 | unsigned long lines = view->height; |
82e78006 | 1501 | int redraw_from = -1; |
b801d8b2 JF |
1502 | |
1503 | if (!view->pipe) | |
1504 | return TRUE; | |
1505 | ||
82e78006 JF |
1506 | /* Only redraw if lines are visible. */ |
1507 | if (view->offset + view->height >= view->lines) | |
1508 | redraw_from = view->lines - view->offset; | |
b801d8b2 JF |
1509 | |
1510 | tmp = realloc(view->line, sizeof(*view->line) * (view->lines + lines)); | |
1511 | if (!tmp) | |
1512 | goto alloc_error; | |
1513 | ||
1514 | view->line = tmp; | |
1515 | ||
1516 | while ((line = fgets(buffer, sizeof(buffer), view->pipe))) { | |
c34d9c9f | 1517 | int linelen = strlen(line); |
b801d8b2 | 1518 | |
fe7233c3 JF |
1519 | struct line *prev = view->lines |
1520 | ? &view->line[view->lines - 1] | |
1521 | : NULL; | |
1522 | ||
b801d8b2 JF |
1523 | if (linelen) |
1524 | line[linelen - 1] = 0; | |
1525 | ||
fe7233c3 | 1526 | if (!view->ops->read(view, prev, line)) |
b801d8b2 | 1527 | goto alloc_error; |
fd85fef1 JF |
1528 | |
1529 | if (lines-- == 1) | |
1530 | break; | |
b801d8b2 JF |
1531 | } |
1532 | ||
8855ada4 JF |
1533 | { |
1534 | int digits; | |
1535 | ||
1536 | lines = view->lines; | |
1537 | for (digits = 0; lines; digits++) | |
1538 | lines /= 10; | |
1539 | ||
1540 | /* Keep the displayed view in sync with line number scaling. */ | |
1541 | if (digits != view->digits) { | |
1542 | view->digits = digits; | |
1543 | redraw_from = 0; | |
1544 | } | |
1545 | } | |
1546 | ||
82e78006 JF |
1547 | if (redraw_from >= 0) { |
1548 | /* If this is an incremental update, redraw the previous line | |
a28bcc22 JF |
1549 | * since for commits some members could have changed when |
1550 | * loading the main view. */ | |
82e78006 JF |
1551 | if (redraw_from > 0) |
1552 | redraw_from--; | |
1553 | ||
1554 | /* Incrementally draw avoids flickering. */ | |
1555 | redraw_view_from(view, redraw_from); | |
4c6fabc2 | 1556 | } |
b801d8b2 | 1557 | |
eb98559e JF |
1558 | /* Update the title _after_ the redraw so that if the redraw picks up a |
1559 | * commit reference in view->ref it'll be available here. */ | |
1560 | update_view_title(view); | |
1561 | ||
b801d8b2 | 1562 | if (ferror(view->pipe)) { |
03a93dbb | 1563 | report("Failed to read: %s", strerror(errno)); |
b801d8b2 JF |
1564 | goto end; |
1565 | ||
1566 | } else if (feof(view->pipe)) { | |
a28bcc22 | 1567 | if (view == VIEW(REQ_VIEW_HELP)) { |
4685845e | 1568 | const char *msg = TIG_HELP; |
468876c9 JF |
1569 | |
1570 | if (view->lines == 0) { | |
1571 | /* Slightly ugly, but abusing view->ref keeps | |
1572 | * the error message. */ | |
1573 | string_copy(view->ref, "No help available"); | |
1574 | msg = "The tig(1) manpage is not installed"; | |
1575 | } | |
1576 | ||
1577 | report("%s", msg); | |
2e8488b4 JF |
1578 | goto end; |
1579 | } | |
1580 | ||
f97f4012 | 1581 | report(""); |
b801d8b2 JF |
1582 | goto end; |
1583 | } | |
1584 | ||
1585 | return TRUE; | |
1586 | ||
1587 | alloc_error: | |
2e8488b4 | 1588 | report("Allocation failure"); |
b801d8b2 JF |
1589 | |
1590 | end: | |
1591 | end_update(view); | |
1592 | return FALSE; | |
1593 | } | |
1594 | ||
49f2b43f JF |
1595 | enum open_flags { |
1596 | OPEN_DEFAULT = 0, /* Use default view switching. */ | |
1597 | OPEN_SPLIT = 1, /* Split current view. */ | |
1598 | OPEN_BACKGROUNDED = 2, /* Backgrounded. */ | |
1599 | OPEN_RELOAD = 4, /* Reload view even if it is the current. */ | |
1600 | }; | |
1601 | ||
6b161b31 | 1602 | static void |
49f2b43f | 1603 | open_view(struct view *prev, enum request request, enum open_flags flags) |
b801d8b2 | 1604 | { |
49f2b43f JF |
1605 | bool backgrounded = !!(flags & OPEN_BACKGROUNDED); |
1606 | bool split = !!(flags & OPEN_SPLIT); | |
1607 | bool reload = !!(flags & OPEN_RELOAD); | |
a28bcc22 | 1608 | struct view *view = VIEW(request); |
9f41488f | 1609 | int nviews = displayed_views(); |
6e950a52 | 1610 | struct view *base_view = display[0]; |
b801d8b2 | 1611 | |
49f2b43f | 1612 | if (view == prev && nviews == 1 && !reload) { |
6b161b31 JF |
1613 | report("Already in %s view", view->name); |
1614 | return; | |
1615 | } | |
b801d8b2 | 1616 | |
8855ada4 | 1617 | if ((reload || strcmp(view->vid, view->id)) && |
03a93dbb | 1618 | !begin_update(view)) { |
6b161b31 JF |
1619 | report("Failed to load %s view", view->name); |
1620 | return; | |
1621 | } | |
a28bcc22 | 1622 | |
6b161b31 JF |
1623 | if (split) { |
1624 | display[current_view + 1] = view; | |
1625 | if (!backgrounded) | |
a28bcc22 | 1626 | current_view++; |
6b161b31 JF |
1627 | } else { |
1628 | /* Maximize the current view. */ | |
1629 | memset(display, 0, sizeof(display)); | |
1630 | current_view = 0; | |
1631 | display[current_view] = view; | |
a28bcc22 | 1632 | } |
b801d8b2 | 1633 | |
6e950a52 JF |
1634 | /* Resize the view when switching between split- and full-screen, |
1635 | * or when switching between two different full-screen views. */ | |
1636 | if (nviews != displayed_views() || | |
1637 | (nviews == 1 && base_view != display[0])) | |
a006db63 | 1638 | resize_display(); |
b801d8b2 | 1639 | |
a8891802 | 1640 | if (split && prev->lineno - prev->offset >= prev->height) { |
03a93dbb | 1641 | /* Take the title line into account. */ |
eb98559e | 1642 | int lines = prev->lineno - prev->offset - prev->height + 1; |
03a93dbb JF |
1643 | |
1644 | /* Scroll the view that was split if the current line is | |
1645 | * outside the new limited view. */ | |
b3a54cba | 1646 | do_scroll_view(prev, lines, TRUE); |
03a93dbb JF |
1647 | } |
1648 | ||
6b161b31 | 1649 | if (prev && view != prev) { |
9b995f0c | 1650 | if (split && !backgrounded) { |
f0b3ab80 JF |
1651 | /* "Blur" the previous view. */ |
1652 | update_view_title(prev); | |
9f396969 | 1653 | } |
f0b3ab80 | 1654 | |
f6da0b66 | 1655 | view->parent = prev; |
b801d8b2 JF |
1656 | } |
1657 | ||
9f396969 | 1658 | if (view->pipe && view->lines == 0) { |
03a93dbb JF |
1659 | /* Clear the old view and let the incremental updating refill |
1660 | * the screen. */ | |
1661 | wclear(view->win); | |
f97f4012 | 1662 | report(""); |
03a93dbb JF |
1663 | } else { |
1664 | redraw_view(view); | |
468876c9 JF |
1665 | if (view == VIEW(REQ_VIEW_HELP)) |
1666 | report("%s", TIG_HELP); | |
1667 | else | |
1668 | report(""); | |
03a93dbb | 1669 | } |
6706b2ba JF |
1670 | |
1671 | /* If the view is backgrounded the above calls to report() | |
1672 | * won't redraw the view title. */ | |
1673 | if (backgrounded) | |
1674 | update_view_title(view); | |
b801d8b2 JF |
1675 | } |
1676 | ||
1677 | ||
6b161b31 JF |
1678 | /* |
1679 | * User request switch noodle | |
1680 | */ | |
1681 | ||
b801d8b2 | 1682 | static int |
6b161b31 | 1683 | view_driver(struct view *view, enum request request) |
b801d8b2 | 1684 | { |
b801d8b2 JF |
1685 | int i; |
1686 | ||
1687 | switch (request) { | |
4a2909a7 JF |
1688 | case REQ_MOVE_UP: |
1689 | case REQ_MOVE_DOWN: | |
1690 | case REQ_MOVE_PAGE_UP: | |
1691 | case REQ_MOVE_PAGE_DOWN: | |
1692 | case REQ_MOVE_FIRST_LINE: | |
1693 | case REQ_MOVE_LAST_LINE: | |
b3a54cba | 1694 | move_view(view, request, TRUE); |
fd85fef1 JF |
1695 | break; |
1696 | ||
4a2909a7 JF |
1697 | case REQ_SCROLL_LINE_DOWN: |
1698 | case REQ_SCROLL_LINE_UP: | |
1699 | case REQ_SCROLL_PAGE_DOWN: | |
1700 | case REQ_SCROLL_PAGE_UP: | |
a28bcc22 | 1701 | scroll_view(view, request); |
b801d8b2 JF |
1702 | break; |
1703 | ||
4a2909a7 | 1704 | case REQ_VIEW_MAIN: |
4a2909a7 | 1705 | case REQ_VIEW_DIFF: |
2e8488b4 JF |
1706 | case REQ_VIEW_LOG: |
1707 | case REQ_VIEW_HELP: | |
6908bdbd | 1708 | case REQ_VIEW_PAGER: |
49f2b43f | 1709 | open_view(view, request, OPEN_DEFAULT); |
b801d8b2 JF |
1710 | break; |
1711 | ||
b3a54cba JF |
1712 | case REQ_NEXT: |
1713 | case REQ_PREVIOUS: | |
1714 | request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP; | |
1715 | ||
1716 | if (view == VIEW(REQ_VIEW_DIFF) && | |
1717 | view->parent == VIEW(REQ_VIEW_MAIN)) { | |
f0b3ab80 | 1718 | bool redraw = display[1] == view; |
b3a54cba JF |
1719 | |
1720 | view = view->parent; | |
1721 | move_view(view, request, redraw); | |
f0b3ab80 JF |
1722 | if (redraw) |
1723 | update_view_title(view); | |
b3a54cba JF |
1724 | } else { |
1725 | move_view(view, request, TRUE); | |
1726 | break; | |
1727 | } | |
6706b2ba JF |
1728 | /* Fall-through */ |
1729 | ||
6b161b31 | 1730 | case REQ_ENTER: |
6908bdbd JF |
1731 | if (!view->lines) { |
1732 | report("Nothing to enter"); | |
1733 | break; | |
1734 | } | |
fe7233c3 | 1735 | return view->ops->enter(view, &view->line[view->lineno]); |
6b161b31 | 1736 | |
03a93dbb JF |
1737 | case REQ_VIEW_NEXT: |
1738 | { | |
9f41488f | 1739 | int nviews = displayed_views(); |
03a93dbb JF |
1740 | int next_view = (current_view + 1) % nviews; |
1741 | ||
1742 | if (next_view == current_view) { | |
1743 | report("Only one view is displayed"); | |
1744 | break; | |
1745 | } | |
1746 | ||
1747 | current_view = next_view; | |
1748 | /* Blur out the title of the previous view. */ | |
1749 | update_view_title(view); | |
6734f6b9 | 1750 | report(""); |
03a93dbb JF |
1751 | break; |
1752 | } | |
4a2909a7 | 1753 | case REQ_TOGGLE_LINE_NUMBERS: |
b76c2afc | 1754 | opt_line_number = !opt_line_number; |
20bb5e18 | 1755 | redraw_display(); |
b801d8b2 JF |
1756 | break; |
1757 | ||
03a93dbb | 1758 | case REQ_PROMPT: |
8855ada4 | 1759 | /* Always reload^Wrerun commands from the prompt. */ |
49f2b43f | 1760 | open_view(view, opt_request, OPEN_RELOAD); |
03a93dbb JF |
1761 | break; |
1762 | ||
4a2909a7 | 1763 | case REQ_STOP_LOADING: |
59a45d3a JF |
1764 | for (i = 0; i < ARRAY_SIZE(views); i++) { |
1765 | view = &views[i]; | |
2e8488b4 | 1766 | if (view->pipe) |
6a7bb912 | 1767 | report("Stopped loading the %s view", view->name), |
03a93dbb JF |
1768 | end_update(view); |
1769 | } | |
b801d8b2 JF |
1770 | break; |
1771 | ||
4a2909a7 | 1772 | case REQ_SHOW_VERSION: |
6cb291b7 | 1773 | report("%s (built %s)", VERSION, __DATE__); |
b801d8b2 JF |
1774 | return TRUE; |
1775 | ||
fac7db6c JF |
1776 | case REQ_SCREEN_RESIZE: |
1777 | resize_display(); | |
1778 | /* Fall-through */ | |
4a2909a7 | 1779 | case REQ_SCREEN_REDRAW: |
20bb5e18 | 1780 | redraw_display(); |
4a2909a7 JF |
1781 | break; |
1782 | ||
1783 | case REQ_SCREEN_UPDATE: | |
b801d8b2 JF |
1784 | doupdate(); |
1785 | return TRUE; | |
1786 | ||
4f9b667a | 1787 | case REQ_VIEW_CLOSE: |
2fcf5401 JF |
1788 | /* XXX: Mark closed views by letting view->parent point to the |
1789 | * view itself. Parents to closed view should never be | |
1790 | * followed. */ | |
1791 | if (view->parent && | |
1792 | view->parent->parent != view->parent) { | |
4f9b667a JF |
1793 | memset(display, 0, sizeof(display)); |
1794 | current_view = 0; | |
f6da0b66 | 1795 | display[current_view] = view->parent; |
2fcf5401 | 1796 | view->parent = view; |
4f9b667a JF |
1797 | resize_display(); |
1798 | redraw_display(); | |
1799 | break; | |
1800 | } | |
1801 | /* Fall-through */ | |
b801d8b2 JF |
1802 | case REQ_QUIT: |
1803 | return FALSE; | |
1804 | ||
1805 | default: | |
2e8488b4 | 1806 | /* An unknown key will show most commonly used commands. */ |
468876c9 | 1807 | report("Unknown key, press 'h' for help"); |
b801d8b2 JF |
1808 | return TRUE; |
1809 | } | |
1810 | ||
1811 | return TRUE; | |
1812 | } | |
1813 | ||
1814 | ||
1815 | /* | |
ff26aa29 | 1816 | * Pager backend |
b801d8b2 JF |
1817 | */ |
1818 | ||
6b161b31 | 1819 | static bool |
fe7233c3 | 1820 | pager_draw(struct view *view, struct line *line, unsigned int lineno) |
b801d8b2 | 1821 | { |
fe7233c3 JF |
1822 | char *text = line->data; |
1823 | enum line_type type = line->type; | |
1824 | int textlen = strlen(text); | |
78c70acd | 1825 | int attr; |
b801d8b2 | 1826 | |
6706b2ba JF |
1827 | wmove(view->win, lineno, 0); |
1828 | ||
fd85fef1 | 1829 | if (view->offset + lineno == view->lineno) { |
8855ada4 | 1830 | if (type == LINE_COMMIT) { |
fe7233c3 | 1831 | string_copy(view->ref, text + 7); |
03a93dbb JF |
1832 | string_copy(ref_commit, view->ref); |
1833 | } | |
8855ada4 | 1834 | |
78c70acd | 1835 | type = LINE_CURSOR; |
6706b2ba | 1836 | wchgat(view->win, -1, 0, type, NULL); |
fd85fef1 JF |
1837 | } |
1838 | ||
78c70acd | 1839 | attr = get_line_attr(type); |
b801d8b2 | 1840 | wattrset(view->win, attr); |
b76c2afc | 1841 | |
6706b2ba JF |
1842 | if (opt_line_number || opt_tab_size < TABSIZE) { |
1843 | static char spaces[] = " "; | |
1844 | int col_offset = 0, col = 0; | |
1845 | ||
1846 | if (opt_line_number) { | |
1847 | unsigned long real_lineno = view->offset + lineno + 1; | |
82e78006 | 1848 | |
6706b2ba JF |
1849 | if (real_lineno == 1 || |
1850 | (real_lineno % opt_num_interval) == 0) { | |
1851 | wprintw(view->win, "%.*d", view->digits, real_lineno); | |
8855ada4 | 1852 | |
6706b2ba JF |
1853 | } else { |
1854 | waddnstr(view->win, spaces, | |
1855 | MIN(view->digits, STRING_SIZE(spaces))); | |
1856 | } | |
1857 | waddstr(view->win, ": "); | |
1858 | col_offset = view->digits + 2; | |
1859 | } | |
8855ada4 | 1860 | |
fe7233c3 | 1861 | while (text && col_offset + col < view->width) { |
6706b2ba | 1862 | int cols_max = view->width - col_offset - col; |
fe7233c3 | 1863 | char *pos = text; |
6706b2ba | 1864 | int cols; |
4c6fabc2 | 1865 | |
fe7233c3 JF |
1866 | if (*text == '\t') { |
1867 | text++; | |
6706b2ba | 1868 | assert(sizeof(spaces) > TABSIZE); |
fe7233c3 | 1869 | pos = spaces; |
6706b2ba | 1870 | cols = opt_tab_size - (col % opt_tab_size); |
82e78006 | 1871 | |
b76c2afc | 1872 | } else { |
fe7233c3 JF |
1873 | text = strchr(text, '\t'); |
1874 | cols = line ? text - pos : strlen(pos); | |
b76c2afc | 1875 | } |
6706b2ba | 1876 | |
fe7233c3 | 1877 | waddnstr(view->win, pos, MIN(cols, cols_max)); |
6706b2ba | 1878 | col += cols; |
b76c2afc | 1879 | } |
b76c2afc JF |
1880 | |
1881 | } else { | |
6706b2ba | 1882 | int col = 0, pos = 0; |
b801d8b2 | 1883 | |
fe7233c3 JF |
1884 | for (; pos < textlen && col < view->width; pos++, col++) |
1885 | if (text[pos] == '\t') | |
6706b2ba JF |
1886 | col += TABSIZE - (col % TABSIZE) - 1; |
1887 | ||
fe7233c3 | 1888 | waddnstr(view->win, text, pos); |
6706b2ba | 1889 | } |
2e8488b4 | 1890 | |
b801d8b2 JF |
1891 | return TRUE; |
1892 | } | |
1893 | ||
6b161b31 | 1894 | static bool |
fe7233c3 | 1895 | pager_read(struct view *view, struct line *prev, char *line) |
22f66b0a | 1896 | { |
6706b2ba JF |
1897 | /* Compress empty lines in the help view. */ |
1898 | if (view == VIEW(REQ_VIEW_HELP) && | |
fe7233c3 | 1899 | !*line && prev && !*((char *) prev->data)) |
6706b2ba JF |
1900 | return TRUE; |
1901 | ||
fe7233c3 JF |
1902 | view->line[view->lines].data = strdup(line); |
1903 | if (!view->line[view->lines].data) | |
22f66b0a JF |
1904 | return FALSE; |
1905 | ||
fe7233c3 JF |
1906 | view->line[view->lines].type = get_line_type(line); |
1907 | ||
22f66b0a JF |
1908 | view->lines++; |
1909 | return TRUE; | |
1910 | } | |
1911 | ||
6b161b31 | 1912 | static bool |
fe7233c3 | 1913 | pager_enter(struct view *view, struct line *line) |
6b161b31 | 1914 | { |
91e8e277 | 1915 | int split = 0; |
6b161b31 | 1916 | |
9fbbd28f JF |
1917 | if (line->type == LINE_COMMIT && |
1918 | (view == VIEW(REQ_VIEW_LOG) || | |
1919 | view == VIEW(REQ_VIEW_PAGER))) { | |
91e8e277 JF |
1920 | open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT); |
1921 | split = 1; | |
67e48ac5 JF |
1922 | } |
1923 | ||
91e8e277 JF |
1924 | /* Always scroll the view even if it was split. That way |
1925 | * you can use Enter to scroll through the log view and | |
1926 | * split open each commit diff. */ | |
1927 | scroll_view(view, REQ_SCROLL_LINE_DOWN); | |
1928 | ||
1929 | /* FIXME: A minor workaround. Scrolling the view will call report("") | |
9d82d824 JF |
1930 | * but if we are scrolling a non-current view this won't properly |
1931 | * update the view title. */ | |
91e8e277 JF |
1932 | if (split) |
1933 | update_view_title(view); | |
6b161b31 JF |
1934 | |
1935 | return TRUE; | |
1936 | } | |
1937 | ||
6b161b31 | 1938 | static struct view_ops pager_ops = { |
6734f6b9 | 1939 | "line", |
6b161b31 JF |
1940 | pager_draw, |
1941 | pager_read, | |
1942 | pager_enter, | |
1943 | }; | |
1944 | ||
80ce96ea | 1945 | |
ff26aa29 JF |
1946 | /* |
1947 | * Main view backend | |
1948 | */ | |
1949 | ||
1950 | struct commit { | |
1951 | char id[41]; /* SHA1 ID. */ | |
1952 | char title[75]; /* The first line of the commit message. */ | |
1953 | char author[75]; /* The author of the commit. */ | |
1954 | struct tm time; /* Date from the author ident. */ | |
1955 | struct ref **refs; /* Repository references; tags & branch heads. */ | |
1956 | }; | |
c34d9c9f | 1957 | |
6b161b31 | 1958 | static bool |
fe7233c3 | 1959 | main_draw(struct view *view, struct line *line, unsigned int lineno) |
22f66b0a | 1960 | { |
2e8488b4 | 1961 | char buf[DATE_COLS + 1]; |
fe7233c3 | 1962 | struct commit *commit = line->data; |
78c70acd | 1963 | enum line_type type; |
6706b2ba | 1964 | int col = 0; |
b76c2afc | 1965 | size_t timelen; |
10e290ee | 1966 | size_t authorlen; |
9989bf60 | 1967 | int trimmed = 1; |
22f66b0a | 1968 | |
4c6fabc2 JF |
1969 | if (!*commit->author) |
1970 | return FALSE; | |
22f66b0a | 1971 | |
6706b2ba JF |
1972 | wmove(view->win, lineno, col); |
1973 | ||
22f66b0a | 1974 | if (view->offset + lineno == view->lineno) { |
03a93dbb | 1975 | string_copy(view->ref, commit->id); |
49f2b43f | 1976 | string_copy(ref_commit, view->ref); |
78c70acd | 1977 | type = LINE_CURSOR; |
6706b2ba JF |
1978 | wattrset(view->win, get_line_attr(type)); |
1979 | wchgat(view->win, -1, 0, type, NULL); | |
1980 | ||
78c70acd | 1981 | } else { |
b76c2afc | 1982 | type = LINE_MAIN_COMMIT; |
6706b2ba | 1983 | wattrset(view->win, get_line_attr(LINE_MAIN_DATE)); |
b76c2afc JF |
1984 | } |
1985 | ||
4c6fabc2 | 1986 | timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time); |
b76c2afc | 1987 | waddnstr(view->win, buf, timelen); |
4c6fabc2 | 1988 | waddstr(view->win, " "); |
b76c2afc | 1989 | |
6706b2ba JF |
1990 | col += DATE_COLS; |
1991 | wmove(view->win, lineno, col); | |
1992 | if (type != LINE_CURSOR) | |
1993 | wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR)); | |
b76c2afc | 1994 | |
9989bf60 JF |
1995 | if (opt_utf8) { |
1996 | authorlen = utf8_length(commit->author, AUTHOR_COLS - 2, &col, &trimmed); | |
1997 | } else { | |
1998 | authorlen = strlen(commit->author); | |
1999 | if (authorlen > AUTHOR_COLS - 2) { | |
2000 | authorlen = AUTHOR_COLS - 2; | |
2001 | trimmed = 1; | |
2002 | } | |
2003 | } | |
10e290ee JF |
2004 | |
2005 | if (trimmed) { | |
2006 | waddnstr(view->win, commit->author, authorlen); | |
6706b2ba JF |
2007 | if (type != LINE_CURSOR) |
2008 | wattrset(view->win, get_line_attr(LINE_MAIN_DELIM)); | |
b76c2afc JF |
2009 | waddch(view->win, '~'); |
2010 | } else { | |
2011 | waddstr(view->win, commit->author); | |
22f66b0a JF |
2012 | } |
2013 | ||
10e290ee | 2014 | col += AUTHOR_COLS; |
6706b2ba JF |
2015 | if (type != LINE_CURSOR) |
2016 | wattrset(view->win, A_NORMAL); | |
2017 | ||
2018 | mvwaddch(view->win, lineno, col, ACS_LTEE); | |
2019 | wmove(view->win, lineno, col + 2); | |
2020 | col += 2; | |
c34d9c9f JF |
2021 | |
2022 | if (commit->refs) { | |
2023 | size_t i = 0; | |
2024 | ||
2025 | do { | |
6706b2ba JF |
2026 | if (type == LINE_CURSOR) |
2027 | ; | |
2028 | else if (commit->refs[i]->tag) | |
c34d9c9f JF |
2029 | wattrset(view->win, get_line_attr(LINE_MAIN_TAG)); |
2030 | else | |
2031 | wattrset(view->win, get_line_attr(LINE_MAIN_REF)); | |
2032 | waddstr(view->win, "["); | |
2033 | waddstr(view->win, commit->refs[i]->name); | |
2034 | waddstr(view->win, "]"); | |
6706b2ba JF |
2035 | if (type != LINE_CURSOR) |
2036 | wattrset(view->win, A_NORMAL); | |
c34d9c9f | 2037 | waddstr(view->win, " "); |
6706b2ba | 2038 | col += strlen(commit->refs[i]->name) + STRING_SIZE("[] "); |
c34d9c9f JF |
2039 | } while (commit->refs[i++]->next); |
2040 | } | |
2041 | ||
6706b2ba JF |
2042 | if (type != LINE_CURSOR) |
2043 | wattrset(view->win, get_line_attr(type)); | |
2044 | ||
2045 | { | |
2046 | int titlelen = strlen(commit->title); | |
2047 | ||
2048 | if (col + titlelen > view->width) | |
2049 | titlelen = view->width - col; | |
2050 | ||
2051 | waddnstr(view->win, commit->title, titlelen); | |
2052 | } | |
22f66b0a JF |
2053 | |
2054 | return TRUE; | |
2055 | } | |
2056 | ||
4c6fabc2 | 2057 | /* Reads git log --pretty=raw output and parses it into the commit struct. */ |
6b161b31 | 2058 | static bool |
fe7233c3 | 2059 | main_read(struct view *view, struct line *prev, char *line) |
22f66b0a | 2060 | { |
78c70acd JF |
2061 | enum line_type type = get_line_type(line); |
2062 | struct commit *commit; | |
22f66b0a | 2063 | |
78c70acd JF |
2064 | switch (type) { |
2065 | case LINE_COMMIT: | |
22f66b0a JF |
2066 | commit = calloc(1, sizeof(struct commit)); |
2067 | if (!commit) | |
2068 | return FALSE; | |
2069 | ||
4c6fabc2 | 2070 | line += STRING_SIZE("commit "); |
b76c2afc | 2071 | |
fe7233c3 | 2072 | view->line[view->lines++].data = commit; |
82e78006 | 2073 | string_copy(commit->id, line); |
c34d9c9f | 2074 | commit->refs = get_refs(commit->id); |
78c70acd | 2075 | break; |
22f66b0a | 2076 | |
8855ada4 | 2077 | case LINE_AUTHOR: |
b76c2afc | 2078 | { |
4c6fabc2 | 2079 | char *ident = line + STRING_SIZE("author "); |
b76c2afc JF |
2080 | char *end = strchr(ident, '<'); |
2081 | ||
fe7233c3 JF |
2082 | if (!prev) |
2083 | break; | |
2084 | ||
2085 | commit = prev->data; | |
2086 | ||
b76c2afc JF |
2087 | if (end) { |
2088 | for (; end > ident && isspace(end[-1]); end--) ; | |
2089 | *end = 0; | |
2090 | } | |
2091 | ||
82e78006 | 2092 | string_copy(commit->author, ident); |
b76c2afc | 2093 | |
4c6fabc2 | 2094 | /* Parse epoch and timezone */ |
b76c2afc JF |
2095 | if (end) { |
2096 | char *secs = strchr(end + 1, '>'); | |
2097 | char *zone; | |
2098 | time_t time; | |
2099 | ||
2100 | if (!secs || secs[1] != ' ') | |
2101 | break; | |
2102 | ||
2103 | secs += 2; | |
2104 | time = (time_t) atol(secs); | |
2105 | zone = strchr(secs, ' '); | |
4c6fabc2 | 2106 | if (zone && strlen(zone) == STRING_SIZE(" +0700")) { |
b76c2afc JF |
2107 | long tz; |
2108 | ||
2109 | zone++; | |
2110 | tz = ('0' - zone[1]) * 60 * 60 * 10; | |
2111 | tz += ('0' - zone[2]) * 60 * 60; | |
2112 | tz += ('0' - zone[3]) * 60; | |
2113 | tz += ('0' - zone[4]) * 60; | |
2114 | ||
2115 | if (zone[0] == '-') | |
2116 | tz = -tz; | |
2117 | ||
2118 | time -= tz; | |
2119 | } | |
2120 | gmtime_r(&time, &commit->time); | |
2121 | } | |
2122 | break; | |
2123 | } | |
78c70acd | 2124 | default: |
fe7233c3 | 2125 | if (!prev) |
2e8488b4 JF |
2126 | break; |
2127 | ||
fe7233c3 JF |
2128 | commit = prev->data; |
2129 | ||
2e8488b4 | 2130 | /* Fill in the commit title if it has not already been set. */ |
2e8488b4 JF |
2131 | if (commit->title[0]) |
2132 | break; | |
2133 | ||
2134 | /* Require titles to start with a non-space character at the | |
2135 | * offset used by git log. */ | |
eb98559e JF |
2136 | /* FIXME: More gracefull handling of titles; append "..." to |
2137 | * shortened titles, etc. */ | |
2e8488b4 | 2138 | if (strncmp(line, " ", 4) || |
eb98559e | 2139 | isspace(line[4])) |
82e78006 JF |
2140 | break; |
2141 | ||
2142 | string_copy(commit->title, line + 4); | |
22f66b0a JF |
2143 | } |
2144 | ||
2145 | return TRUE; | |
2146 | } | |
2147 | ||
6b161b31 | 2148 | static bool |
fe7233c3 | 2149 | main_enter(struct view *view, struct line *line) |
b801d8b2 | 2150 | { |
b3a54cba JF |
2151 | enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT; |
2152 | ||
2153 | open_view(view, REQ_VIEW_DIFF, flags); | |
6b161b31 | 2154 | return TRUE; |
b801d8b2 JF |
2155 | } |
2156 | ||
6b161b31 | 2157 | static struct view_ops main_ops = { |
6734f6b9 | 2158 | "commit", |
6b161b31 JF |
2159 | main_draw, |
2160 | main_read, | |
2161 | main_enter, | |
2162 | }; | |
2e8488b4 | 2163 | |
c34d9c9f | 2164 | |
468876c9 JF |
2165 | /** |
2166 | * KEYS | |
2167 | * ---- | |
2168 | * Below the default key bindings are shown. | |
2169 | **/ | |
2170 | ||
2171 | struct keymap { | |
2172 | int alias; | |
2173 | int request; | |
2174 | }; | |
2175 | ||
3a91b75e | 2176 | static struct keymap keymap[] = { |
468876c9 JF |
2177 | /** |
2178 | * View switching | |
2179 | * ~~~~~~~~~~~~~~ | |
2180 | * m:: | |
2181 | * Switch to main view. | |
2182 | * d:: | |
2183 | * Switch to diff view. | |
2184 | * l:: | |
2185 | * Switch to log view. | |
2186 | * p:: | |
2187 | * Switch to pager view. | |
2188 | * h:: | |
2189 | * Show man page. | |
b3a54cba JF |
2190 | **/ |
2191 | { 'm', REQ_VIEW_MAIN }, | |
2192 | { 'd', REQ_VIEW_DIFF }, | |
2193 | { 'l', REQ_VIEW_LOG }, | |
2194 | { 'p', REQ_VIEW_PAGER }, | |
2195 | { 'h', REQ_VIEW_HELP }, | |
2196 | ||
2197 | /** | |
2198 | * View manipulation | |
2199 | * ~~~~~~~~~~~~~~~~~ | |
4f9b667a | 2200 | * q:: |
f6da0b66 JF |
2201 | * Close view, if multiple views are open it will jump back to the |
2202 | * previous view in the view stack. If it is the last open view it | |
2203 | * will quit. Use 'Q' to quit all views at once. | |
67e48ac5 JF |
2204 | * Enter:: |
2205 | * This key is "context sensitive" depending on what view you are | |
2206 | * currently in. When in log view on a commit line or in the main | |
2207 | * view, split the view and show the commit diff. In the diff view | |
2208 | * pressing Enter will simply scroll the view one line down. | |
468876c9 JF |
2209 | * Tab:: |
2210 | * Switch to next view. | |
b3a54cba JF |
2211 | * Up:: |
2212 | * This key is "context sensitive" and will move the cursor one | |
2213 | * line up. However, uf you opened a diff view from the main view | |
2214 | * (split- or full-screen) it will change the cursor to point to | |
2215 | * the previous commit in the main view and update the diff view | |
2216 | * to display it. | |
2217 | * Down:: | |
2218 | * Similar to 'Up' but will move down. | |
468876c9 | 2219 | **/ |
4f9b667a | 2220 | { 'q', REQ_VIEW_CLOSE }, |
468876c9 JF |
2221 | { KEY_TAB, REQ_VIEW_NEXT }, |
2222 | { KEY_RETURN, REQ_ENTER }, | |
b3a54cba JF |
2223 | { KEY_UP, REQ_PREVIOUS }, |
2224 | { KEY_DOWN, REQ_NEXT }, | |
468876c9 JF |
2225 | |
2226 | /** | |
2227 | * Cursor navigation | |
2228 | * ~~~~~~~~~~~~~~~~~ | |
b3a54cba | 2229 | * j:: |
57bdf034 | 2230 | * Move cursor one line up. |
468876c9 | 2231 | * k:: |
b3a54cba | 2232 | * Move cursor one line down. |
468876c9 | 2233 | * PgUp:: |
c622eefa | 2234 | * b:: |
0df811cb | 2235 | * -:: |
57bdf034 | 2236 | * Move cursor one page up. |
468876c9 | 2237 | * PgDown:: |
c622eefa | 2238 | * Space:: |
468876c9 JF |
2239 | * Move cursor one page down. |
2240 | * Home:: | |
2241 | * Jump to first line. | |
2242 | * End:: | |
2243 | * Jump to last line. | |
2244 | **/ | |
b3a54cba JF |
2245 | { 'k', REQ_MOVE_UP }, |
2246 | { 'j', REQ_MOVE_DOWN }, | |
468876c9 JF |
2247 | { KEY_HOME, REQ_MOVE_FIRST_LINE }, |
2248 | { KEY_END, REQ_MOVE_LAST_LINE }, | |
2249 | { KEY_NPAGE, REQ_MOVE_PAGE_DOWN }, | |
c622eefa | 2250 | { ' ', REQ_MOVE_PAGE_DOWN }, |
468876c9 | 2251 | { KEY_PPAGE, REQ_MOVE_PAGE_UP }, |
c622eefa | 2252 | { 'b', REQ_MOVE_PAGE_UP }, |
0df811cb | 2253 | { '-', REQ_MOVE_PAGE_UP }, |
468876c9 JF |
2254 | |
2255 | /** | |
2256 | * Scrolling | |
2257 | * ~~~~~~~~~ | |
2258 | * Insert:: | |
2259 | * Scroll view one line up. | |
2260 | * Delete:: | |
2261 | * Scroll view one line down. | |
2262 | * w:: | |
2263 | * Scroll view one page up. | |
2264 | * s:: | |
2265 | * Scroll view one page down. | |
2266 | **/ | |
2267 | { KEY_IC, REQ_SCROLL_LINE_UP }, | |
2268 | { KEY_DC, REQ_SCROLL_LINE_DOWN }, | |
2269 | { 'w', REQ_SCROLL_PAGE_UP }, | |
2270 | { 's', REQ_SCROLL_PAGE_DOWN }, | |
2271 | ||
2272 | /** | |
2273 | * Misc | |
2274 | * ~~~~ | |
d9d1c722 JF |
2275 | * Q:: |
2276 | * Quit. | |
468876c9 JF |
2277 | * r:: |
2278 | * Redraw screen. | |
2279 | * z:: | |
2280 | * Stop all background loading. This can be useful if you use | |
2281 | * tig(1) in a repository with a long history without limiting | |
0721c53a | 2282 | * the revision log. |
468876c9 JF |
2283 | * v:: |
2284 | * Show version. | |
2285 | * n:: | |
2286 | * Toggle line numbers on/off. | |
2287 | * ':':: | |
2288 | * Open prompt. This allows you to specify what git command | |
2289 | * to run. Example: | |
2290 | * | |
2291 | * :log -p | |
2292 | **/ | |
d9d1c722 | 2293 | { 'Q', REQ_QUIT }, |
468876c9 JF |
2294 | { 'z', REQ_STOP_LOADING }, |
2295 | { 'v', REQ_SHOW_VERSION }, | |
2296 | { 'r', REQ_SCREEN_REDRAW }, | |
2297 | { 'n', REQ_TOGGLE_LINE_NUMBERS }, | |
2298 | { ':', REQ_PROMPT }, | |
2299 | ||
2300 | /* wgetch() with nodelay() enabled returns ERR when there's no input. */ | |
2301 | { ERR, REQ_SCREEN_UPDATE }, | |
2302 | ||
2303 | /* Use the ncurses SIGWINCH handler. */ | |
2304 | { KEY_RESIZE, REQ_SCREEN_RESIZE }, | |
2305 | }; | |
2306 | ||
2307 | static enum request | |
2308 | get_request(int key) | |
2309 | { | |
2310 | int i; | |
2311 | ||
2312 | for (i = 0; i < ARRAY_SIZE(keymap); i++) | |
2313 | if (keymap[i].alias == key) | |
2314 | return keymap[i].request; | |
2315 | ||
2316 | return (enum request) key; | |
2317 | } | |
2318 | ||
2319 | ||
6b161b31 | 2320 | /* |
10e290ee JF |
2321 | * Unicode / UTF-8 handling |
2322 | * | |
2323 | * NOTE: Much of the following code for dealing with unicode is derived from | |
2324 | * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is | |
2325 | * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28. | |
2326 | */ | |
2327 | ||
2328 | /* I've (over)annotated a lot of code snippets because I am not entirely | |
2329 | * confident that the approach taken by this small UTF-8 interface is correct. | |
2330 | * --jonas */ | |
2331 | ||
2332 | static inline int | |
2333 | unicode_width(unsigned long c) | |
2334 | { | |
2335 | if (c >= 0x1100 && | |
2336 | (c <= 0x115f /* Hangul Jamo */ | |
2337 | || c == 0x2329 | |
2338 | || c == 0x232a | |
2339 | || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f) | |
f97f4012 | 2340 | /* CJK ... Yi */ |
10e290ee JF |
2341 | || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */ |
2342 | || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */ | |
2343 | || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */ | |
2344 | || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */ | |
2345 | || (c >= 0xffe0 && c <= 0xffe6) | |
2346 | || (c >= 0x20000 && c <= 0x2fffd) | |
2347 | || (c >= 0x30000 && c <= 0x3fffd))) | |
2348 | return 2; | |
2349 | ||
2350 | return 1; | |
2351 | } | |
2352 | ||
2353 | /* Number of bytes used for encoding a UTF-8 character indexed by first byte. | |
2354 | * Illegal bytes are set one. */ | |
2355 | static const unsigned char utf8_bytes[256] = { | |
2356 | 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, | |
2357 | 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, | |
2358 | 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, | |
2359 | 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, | |
2360 | 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, | |
2361 | 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, | |
2362 | 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, | |
2363 | 3,3,3,3,3,3,3,3, 3,3,3,3,3,3,3,3, 4,4,4,4,4,4,4,4, 5,5,5,5,6,6,1,1, | |
2364 | }; | |
2365 | ||
2366 | /* Decode UTF-8 multi-byte representation into a unicode character. */ | |
2367 | static inline unsigned long | |
2368 | utf8_to_unicode(const char *string, size_t length) | |
2369 | { | |
2370 | unsigned long unicode; | |
2371 | ||
2372 | switch (length) { | |
2373 | case 1: | |
2374 | unicode = string[0]; | |
2375 | break; | |
2376 | case 2: | |
2377 | unicode = (string[0] & 0x1f) << 6; | |
2378 | unicode += (string[1] & 0x3f); | |
2379 | break; | |
2380 | case 3: | |
2381 | unicode = (string[0] & 0x0f) << 12; | |
2382 | unicode += ((string[1] & 0x3f) << 6); | |
2383 | unicode += (string[2] & 0x3f); | |
2384 | break; | |
2385 | case 4: | |
2386 | unicode = (string[0] & 0x0f) << 18; | |
2387 | unicode += ((string[1] & 0x3f) << 12); | |
2388 | unicode += ((string[2] & 0x3f) << 6); | |
2389 | unicode += (string[3] & 0x3f); | |
2390 | break; | |
2391 | case 5: | |
2392 | unicode = (string[0] & 0x0f) << 24; | |
2393 | unicode += ((string[1] & 0x3f) << 18); | |
2394 | unicode += ((string[2] & 0x3f) << 12); | |
2395 | unicode += ((string[3] & 0x3f) << 6); | |
2396 | unicode += (string[4] & 0x3f); | |
2397 | break; | |
68b6e0eb | 2398 | case 6: |
10e290ee JF |
2399 | unicode = (string[0] & 0x01) << 30; |
2400 | unicode += ((string[1] & 0x3f) << 24); | |
2401 | unicode += ((string[2] & 0x3f) << 18); | |
2402 | unicode += ((string[3] & 0x3f) << 12); | |
2403 | unicode += ((string[4] & 0x3f) << 6); | |
2404 | unicode += (string[5] & 0x3f); | |
2405 | break; | |
2406 | default: | |
2407 | die("Invalid unicode length"); | |
2408 | } | |
2409 | ||
2410 | /* Invalid characters could return the special 0xfffd value but NUL | |
2411 | * should be just as good. */ | |
2412 | return unicode > 0xffff ? 0 : unicode; | |
2413 | } | |
2414 | ||
2415 | /* Calculates how much of string can be shown within the given maximum width | |
2416 | * and sets trimmed parameter to non-zero value if all of string could not be | |
2417 | * shown. | |
2418 | * | |
2419 | * Additionally, adds to coloffset how many many columns to move to align with | |
2420 | * the expected position. Takes into account how multi-byte and double-width | |
2421 | * characters will effect the cursor position. | |
2422 | * | |
2423 | * Returns the number of bytes to output from string to satisfy max_width. */ | |
2424 | static size_t | |
2425 | utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed) | |
2426 | { | |
2427 | const char *start = string; | |
2428 | const char *end = strchr(string, '\0'); | |
2429 | size_t mbwidth = 0; | |
2430 | size_t width = 0; | |
2431 | ||
2432 | *trimmed = 0; | |
2433 | ||
2434 | while (string < end) { | |
2435 | int c = *(unsigned char *) string; | |
2436 | unsigned char bytes = utf8_bytes[c]; | |
2437 | size_t ucwidth; | |
2438 | unsigned long unicode; | |
2439 | ||
2440 | if (string + bytes > end) | |
2441 | break; | |
2442 | ||
2443 | /* Change representation to figure out whether | |
2444 | * it is a single- or double-width character. */ | |
2445 | ||
2446 | unicode = utf8_to_unicode(string, bytes); | |
2447 | /* FIXME: Graceful handling of invalid unicode character. */ | |
2448 | if (!unicode) | |
2449 | break; | |
2450 | ||
2451 | ucwidth = unicode_width(unicode); | |
2452 | width += ucwidth; | |
2453 | if (width > max_width) { | |
2454 | *trimmed = 1; | |
2455 | break; | |
2456 | } | |
2457 | ||
2458 | /* The column offset collects the differences between the | |
2459 | * number of bytes encoding a character and the number of | |
2460 | * columns will be used for rendering said character. | |
2461 | * | |
2462 | * So if some character A is encoded in 2 bytes, but will be | |
2463 | * represented on the screen using only 1 byte this will and up | |
2464 | * adding 1 to the multi-byte column offset. | |
2465 | * | |
2466 | * Assumes that no double-width character can be encoding in | |
2467 | * less than two bytes. */ | |
2468 | if (bytes > ucwidth) | |
2469 | mbwidth += bytes - ucwidth; | |
2470 | ||
2471 | string += bytes; | |
2472 | } | |
2473 | ||
2474 | *coloffset += mbwidth; | |
2475 | ||
2476 | return string - start; | |
2477 | } | |
2478 | ||
2479 | ||
2480 | /* | |
6b161b31 JF |
2481 | * Status management |
2482 | */ | |
2e8488b4 | 2483 | |
8855ada4 | 2484 | /* Whether or not the curses interface has been initialized. */ |
68b6e0eb | 2485 | static bool cursed = FALSE; |
8855ada4 | 2486 | |
6b161b31 JF |
2487 | /* The status window is used for polling keystrokes. */ |
2488 | static WINDOW *status_win; | |
4a2909a7 | 2489 | |
2e8488b4 | 2490 | /* Update status and title window. */ |
4a2909a7 JF |
2491 | static void |
2492 | report(const char *msg, ...) | |
2493 | { | |
6706b2ba JF |
2494 | static bool empty = TRUE; |
2495 | struct view *view = display[current_view]; | |
b76c2afc | 2496 | |
6706b2ba JF |
2497 | if (!empty || *msg) { |
2498 | va_list args; | |
4a2909a7 | 2499 | |
6706b2ba | 2500 | va_start(args, msg); |
4b76734f | 2501 | |
6706b2ba JF |
2502 | werase(status_win); |
2503 | wmove(status_win, 0, 0); | |
2504 | if (*msg) { | |
2505 | vwprintw(status_win, msg, args); | |
2506 | empty = FALSE; | |
2507 | } else { | |
2508 | empty = TRUE; | |
2509 | } | |
2510 | wrefresh(status_win); | |
b801d8b2 | 2511 | |
6706b2ba JF |
2512 | va_end(args); |
2513 | } | |
2514 | ||
2515 | update_view_title(view); | |
85af6284 | 2516 | update_display_cursor(); |
b801d8b2 JF |
2517 | } |
2518 | ||
6b161b31 JF |
2519 | /* Controls when nodelay should be in effect when polling user input. */ |
2520 | static void | |
1ba2ae4b | 2521 | set_nonblocking_input(bool loading) |
b801d8b2 | 2522 | { |
6706b2ba | 2523 | static unsigned int loading_views; |
b801d8b2 | 2524 | |
6706b2ba JF |
2525 | if ((loading == FALSE && loading_views-- == 1) || |
2526 | (loading == TRUE && loading_views++ == 0)) | |
1ba2ae4b | 2527 | nodelay(status_win, loading); |
6b161b31 JF |
2528 | } |
2529 | ||
2530 | static void | |
2531 | init_display(void) | |
2532 | { | |
2533 | int x, y; | |
b76c2afc | 2534 | |
6908bdbd JF |
2535 | /* Initialize the curses library */ |
2536 | if (isatty(STDIN_FILENO)) { | |
8855ada4 | 2537 | cursed = !!initscr(); |
6908bdbd JF |
2538 | } else { |
2539 | /* Leave stdin and stdout alone when acting as a pager. */ | |
2540 | FILE *io = fopen("/dev/tty", "r+"); | |
2541 | ||
8855ada4 | 2542 | cursed = !!newterm(NULL, io, io); |
6908bdbd JF |
2543 | } |
2544 | ||
8855ada4 JF |
2545 | if (!cursed) |
2546 | die("Failed to initialize curses"); | |
2547 | ||
2e8488b4 JF |
2548 | nonl(); /* Tell curses not to do NL->CR/NL on output */ |
2549 | cbreak(); /* Take input chars one at a time, no wait for \n */ | |
2550 | noecho(); /* Don't echo input */ | |
b801d8b2 | 2551 | leaveok(stdscr, TRUE); |
b801d8b2 JF |
2552 | |
2553 | if (has_colors()) | |
2554 | init_colors(); | |
2555 | ||
2556 | getmaxyx(stdscr, y, x); | |
2557 | status_win = newwin(1, 0, y - 1, 0); | |
2558 | if (!status_win) | |
2559 | die("Failed to create status window"); | |
2560 | ||
2561 | /* Enable keyboard mapping */ | |
2562 | keypad(status_win, TRUE); | |
78c70acd | 2563 | wbkgdset(status_win, get_line_attr(LINE_STATUS)); |
6b161b31 JF |
2564 | } |
2565 | ||
c34d9c9f JF |
2566 | |
2567 | /* | |
2568 | * Repository references | |
2569 | */ | |
2570 | ||
2571 | static struct ref *refs; | |
3a91b75e | 2572 | static size_t refs_size; |
c34d9c9f | 2573 | |
1307df1a JF |
2574 | /* Id <-> ref store */ |
2575 | static struct ref ***id_refs; | |
2576 | static size_t id_refs_size; | |
2577 | ||
c34d9c9f JF |
2578 | static struct ref ** |
2579 | get_refs(char *id) | |
2580 | { | |
1307df1a JF |
2581 | struct ref ***tmp_id_refs; |
2582 | struct ref **ref_list = NULL; | |
2583 | size_t ref_list_size = 0; | |
c34d9c9f JF |
2584 | size_t i; |
2585 | ||
1307df1a JF |
2586 | for (i = 0; i < id_refs_size; i++) |
2587 | if (!strcmp(id, id_refs[i][0]->id)) | |
2588 | return id_refs[i]; | |
2589 | ||
2590 | tmp_id_refs = realloc(id_refs, (id_refs_size + 1) * sizeof(*id_refs)); | |
2591 | if (!tmp_id_refs) | |
2592 | return NULL; | |
2593 | ||
2594 | id_refs = tmp_id_refs; | |
2595 | ||
c34d9c9f JF |
2596 | for (i = 0; i < refs_size; i++) { |
2597 | struct ref **tmp; | |
2598 | ||
2599 | if (strcmp(id, refs[i].id)) | |
2600 | continue; | |
2601 | ||
1307df1a | 2602 | tmp = realloc(ref_list, (ref_list_size + 1) * sizeof(*ref_list)); |
c34d9c9f | 2603 | if (!tmp) { |
1307df1a JF |
2604 | if (ref_list) |
2605 | free(ref_list); | |
c34d9c9f JF |
2606 | return NULL; |
2607 | } | |
2608 | ||
1307df1a JF |
2609 | ref_list = tmp; |
2610 | if (ref_list_size > 0) | |
2611 | ref_list[ref_list_size - 1]->next = 1; | |
2612 | ref_list[ref_list_size] = &refs[i]; | |
3af8774e JF |
2613 | |
2614 | /* XXX: The properties of the commit chains ensures that we can | |
2615 | * safely modify the shared ref. The repo references will | |
2616 | * always be similar for the same id. */ | |
1307df1a JF |
2617 | ref_list[ref_list_size]->next = 0; |
2618 | ref_list_size++; | |
c34d9c9f JF |
2619 | } |
2620 | ||
1307df1a JF |
2621 | if (ref_list) |
2622 | id_refs[id_refs_size++] = ref_list; | |
2623 | ||
2624 | return ref_list; | |
c34d9c9f JF |
2625 | } |
2626 | ||
2627 | static int | |
d0cea5f9 | 2628 | read_ref(char *id, int idlen, char *name, int namelen) |
c34d9c9f | 2629 | { |
d0cea5f9 JF |
2630 | struct ref *ref; |
2631 | bool tag = FALSE; | |
2632 | bool tag_commit = FALSE; | |
2633 | ||
2634 | /* Commits referenced by tags has "^{}" appended. */ | |
2635 | if (name[namelen - 1] == '}') { | |
2636 | while (namelen > 0 && name[namelen] != '^') | |
2637 | namelen--; | |
2638 | if (namelen > 0) | |
2639 | tag_commit = TRUE; | |
2640 | name[namelen] = 0; | |
2641 | } | |
c34d9c9f | 2642 | |
d0cea5f9 JF |
2643 | if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) { |
2644 | if (!tag_commit) | |
2645 | return OK; | |
2646 | name += STRING_SIZE("refs/tags/"); | |
2647 | tag = TRUE; | |
c34d9c9f | 2648 | |
d0cea5f9 JF |
2649 | } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) { |
2650 | name += STRING_SIZE("refs/heads/"); | |
c34d9c9f | 2651 | |
d0cea5f9 JF |
2652 | } else if (!strcmp(name, "HEAD")) { |
2653 | return OK; | |
2654 | } | |
6706b2ba | 2655 | |
d0cea5f9 JF |
2656 | refs = realloc(refs, sizeof(*refs) * (refs_size + 1)); |
2657 | if (!refs) | |
2658 | return ERR; | |
c34d9c9f | 2659 | |
d0cea5f9 JF |
2660 | ref = &refs[refs_size++]; |
2661 | ref->name = strdup(name); | |
2662 | if (!ref->name) | |
2663 | return ERR; | |
3af8774e | 2664 | |
d0cea5f9 JF |
2665 | ref->tag = tag; |
2666 | string_copy(ref->id, id); | |
3af8774e | 2667 | |
d0cea5f9 JF |
2668 | return OK; |
2669 | } | |
c34d9c9f | 2670 | |
d0cea5f9 JF |
2671 | static int |
2672 | load_refs(void) | |
2673 | { | |
2674 | const char *cmd_env = getenv("TIG_LS_REMOTE"); | |
2675 | const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE; | |
c34d9c9f | 2676 | |
4a63c884 | 2677 | return read_properties(popen(cmd, "r"), "\t", read_ref); |
d0cea5f9 | 2678 | } |
c34d9c9f | 2679 | |
d0cea5f9 | 2680 | static int |
14c778a6 | 2681 | read_repo_config_option(char *name, int namelen, char *value, int valuelen) |
d0cea5f9 JF |
2682 | { |
2683 | if (!strcmp(name, "i18n.commitencoding")) { | |
2684 | string_copy(opt_encoding, value); | |
c34d9c9f JF |
2685 | } |
2686 | ||
c34d9c9f JF |
2687 | return OK; |
2688 | } | |
2689 | ||
4670cf89 | 2690 | static int |
14c778a6 | 2691 | load_repo_config(void) |
4670cf89 | 2692 | { |
66749723 | 2693 | return read_properties(popen("git repo-config --list", "r"), |
14c778a6 | 2694 | "=", read_repo_config_option); |
d0cea5f9 JF |
2695 | } |
2696 | ||
2697 | static int | |
4a63c884 | 2698 | read_properties(FILE *pipe, const char *separators, |
d0cea5f9 JF |
2699 | int (*read_property)(char *, int, char *, int)) |
2700 | { | |
4670cf89 JF |
2701 | char buffer[BUFSIZ]; |
2702 | char *name; | |
d0cea5f9 | 2703 | int state = OK; |
4670cf89 JF |
2704 | |
2705 | if (!pipe) | |
2706 | return ERR; | |
2707 | ||
d0cea5f9 | 2708 | while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) { |
4a63c884 JF |
2709 | char *value; |
2710 | size_t namelen; | |
2711 | size_t valuelen; | |
4670cf89 | 2712 | |
4a63c884 JF |
2713 | name = chomp_string(name); |
2714 | namelen = strcspn(name, separators); | |
2715 | ||
2716 | if (name[namelen]) { | |
2717 | name[namelen] = 0; | |
2718 | value = chomp_string(name + namelen + 1); | |
d0cea5f9 | 2719 | valuelen = strlen(value); |
4670cf89 | 2720 | |
d0cea5f9 | 2721 | } else { |
d0cea5f9 JF |
2722 | value = ""; |
2723 | valuelen = 0; | |
4670cf89 | 2724 | } |
d0cea5f9 | 2725 | |
9d82d824 JF |
2726 | if (namelen) |
2727 | state = read_property(name, namelen, value, valuelen); | |
4670cf89 JF |
2728 | } |
2729 | ||
d0cea5f9 JF |
2730 | if (state != ERR && ferror(pipe)) |
2731 | state = ERR; | |
4670cf89 JF |
2732 | |
2733 | pclose(pipe); | |
2734 | ||
d0cea5f9 | 2735 | return state; |
4670cf89 JF |
2736 | } |
2737 | ||
d0cea5f9 | 2738 | |
6b161b31 JF |
2739 | /* |
2740 | * Main | |
2741 | */ | |
2742 | ||
b5c9e67f TH |
2743 | #if __GNUC__ >= 3 |
2744 | #define __NORETURN __attribute__((__noreturn__)) | |
2745 | #else | |
2746 | #define __NORETURN | |
2747 | #endif | |
2748 | ||
2749 | static void __NORETURN | |
6b161b31 JF |
2750 | quit(int sig) |
2751 | { | |
8855ada4 JF |
2752 | /* XXX: Restore tty modes and let the OS cleanup the rest! */ |
2753 | if (cursed) | |
2754 | endwin(); | |
6b161b31 JF |
2755 | exit(0); |
2756 | } | |
2757 | ||
c6704a4e JF |
2758 | static void __NORETURN |
2759 | die(const char *err, ...) | |
6b161b31 JF |
2760 | { |
2761 | va_list args; | |
2762 | ||
2763 | endwin(); | |
2764 | ||
2765 | va_start(args, err); | |
2766 | fputs("tig: ", stderr); | |
2767 | vfprintf(stderr, err, args); | |
2768 | fputs("\n", stderr); | |
2769 | va_end(args); | |
2770 | ||
2771 | exit(1); | |
2772 | } | |
2773 | ||
2774 | int | |
2775 | main(int argc, char *argv[]) | |
2776 | { | |
1ba2ae4b | 2777 | struct view *view; |
6b161b31 | 2778 | enum request request; |
1ba2ae4b | 2779 | size_t i; |
6b161b31 JF |
2780 | |
2781 | signal(SIGINT, quit); | |
2782 | ||
660e09ad JF |
2783 | if (load_options() == ERR) |
2784 | die("Failed to load user config."); | |
2785 | ||
2786 | /* Load the repo config file so options can be overwritten from | |
afdc35b3 | 2787 | * the command line. */ |
14c778a6 | 2788 | if (load_repo_config() == ERR) |
afdc35b3 JF |
2789 | die("Failed to load repo config."); |
2790 | ||
8855ada4 | 2791 | if (!parse_options(argc, argv)) |
6b161b31 JF |
2792 | return 0; |
2793 | ||
c34d9c9f JF |
2794 | if (load_refs() == ERR) |
2795 | die("Failed to load refs."); | |
2796 | ||
7bb55251 JF |
2797 | /* Require a git repository unless when running in pager mode. */ |
2798 | if (refs_size == 0 && opt_request != REQ_VIEW_PAGER) | |
2799 | die("Not a git repository"); | |
2800 | ||
1ba2ae4b JF |
2801 | for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++) |
2802 | view->cmd_env = getenv(view->cmd_env); | |
2803 | ||
6b161b31 JF |
2804 | request = opt_request; |
2805 | ||
2806 | init_display(); | |
b801d8b2 JF |
2807 | |
2808 | while (view_driver(display[current_view], request)) { | |
6b161b31 | 2809 | int key; |
b801d8b2 JF |
2810 | int i; |
2811 | ||
6b161b31 JF |
2812 | foreach_view (view, i) |
2813 | update_view(view); | |
b801d8b2 JF |
2814 | |
2815 | /* Refresh, accept single keystroke of input */ | |
6b161b31 JF |
2816 | key = wgetch(status_win); |
2817 | request = get_request(key); | |
03a93dbb | 2818 | |
6706b2ba | 2819 | /* Some low-level request handling. This keeps access to |
fac7db6c JF |
2820 | * status_win restricted. */ |
2821 | switch (request) { | |
2822 | case REQ_PROMPT: | |
6908bdbd JF |
2823 | report(":"); |
2824 | /* Temporarily switch to line-oriented and echoed | |
2825 | * input. */ | |
03a93dbb JF |
2826 | nocbreak(); |
2827 | echo(); | |
49f2b43f JF |
2828 | |
2829 | if (wgetnstr(status_win, opt_cmd + 4, sizeof(opt_cmd) - 4) == OK) { | |
2830 | memcpy(opt_cmd, "git ", 4); | |
2831 | opt_request = REQ_VIEW_PAGER; | |
2832 | } else { | |
6a7bb912 JF |
2833 | report("Prompt interrupted by loading view, " |
2834 | "press 'z' to stop loading views"); | |
2835 | request = REQ_SCREEN_UPDATE; | |
49f2b43f JF |
2836 | } |
2837 | ||
6908bdbd JF |
2838 | noecho(); |
2839 | cbreak(); | |
fac7db6c JF |
2840 | break; |
2841 | ||
2842 | case REQ_SCREEN_RESIZE: | |
2843 | { | |
2844 | int height, width; | |
2845 | ||
2846 | getmaxyx(stdscr, height, width); | |
2847 | ||
2848 | /* Resize the status view and let the view driver take | |
2849 | * care of resizing the displayed views. */ | |
2850 | wresize(status_win, 1, width); | |
2851 | mvwin(status_win, height - 1, 0); | |
2852 | wrefresh(status_win); | |
2853 | break; | |
2854 | } | |
2855 | default: | |
2856 | break; | |
03a93dbb | 2857 | } |
b801d8b2 JF |
2858 | } |
2859 | ||
2860 | quit(0); | |
2861 | ||
2862 | return 0; | |
2863 | } | |
2864 | ||
2865 | /** | |
0721c53a | 2866 | * [[refspec]] |
3a11b38f JF |
2867 | * Revision specification |
2868 | * ---------------------- | |
0721c53a | 2869 | * This section describes various ways to specify what revisions to display |
3a11b38f JF |
2870 | * or otherwise limit the view to. tig(1) does not itself parse the described |
2871 | * revision options so refer to the relevant git man pages for futher | |
2872 | * information. Relevant man pages besides git-log(1) are git-diff(1) and | |
2873 | * git-rev-list(1). | |
468876c9 | 2874 | * |
3a11b38f JF |
2875 | * You can tune the interaction with git by making use of the options |
2876 | * explained in this section. For example, by configuring the environment | |
55565c51 JF |
2877 | * variables described in the <<history-commands, "History commands">> |
2878 | * section. | |
3a11b38f JF |
2879 | * |
2880 | * Limit by path name | |
2881 | * ~~~~~~~~~~~~~~~~~~ | |
ab46037d JF |
2882 | * If you are interested only in those revisions that made changes to a |
2883 | * specific file (or even several files) list the files like this: | |
2884 | * | |
c760e6ba | 2885 | * $ tig log Makefile README |
ab46037d JF |
2886 | * |
2887 | * To avoid ambiguity with repository references such as tag name, be sure | |
2888 | * to separate file names from other git options using "\--". So if you | |
2889 | * have a file named 'master' it will clash with the reference named | |
2890 | * 'master', and thus you will have to use: | |
2891 | * | |
1b4b0bd9 | 2892 | * $ tig log -- master |
ab46037d JF |
2893 | * |
2894 | * NOTE: For the main view, avoiding ambiguity will in some cases require | |
2895 | * you to specify two "\--" options. The first will make tig(1) stop | |
2896 | * option processing and the latter will be passed to git log. | |
2897 | * | |
468876c9 JF |
2898 | * Limit by date or number |
2899 | * ~~~~~~~~~~~~~~~~~~~~~~~ | |
2900 | * To speed up interaction with git, you can limit the amount of commits | |
2901 | * to show both for the log and main view. Either limit by date using | |
2902 | * e.g. `--since=1.month` or limit by the number of commits using `-n400`. | |
2903 | * | |
3a11b38f JF |
2904 | * If you are only interested in changed that happened between two dates |
2905 | * you can use: | |
2906 | * | |
c760e6ba | 2907 | * $ tig -- --after="May 5th" --before="2006-05-16 15:44" |
468876c9 | 2908 | * |
c760e6ba JF |
2909 | * NOTE: If you want to avoid having to quote dates containing spaces you |
2910 | * can use "." instead, e.g. `--after=May.5th`. | |
3a11b38f JF |
2911 | * |
2912 | * Limiting by commit ranges | |
2913 | * ~~~~~~~~~~~~~~~~~~~~~~~~~ | |
468876c9 JF |
2914 | * Alternatively, commits can be limited to a specific range, such as |
2915 | * "all commits between 'tag-1.0' and 'tag-2.0'". For example: | |
2916 | * | |
2917 | * $ tig log tag-1.0..tag-2.0 | |
2918 | * | |
2919 | * This way of commit limiting makes it trivial to only browse the commits | |
2920 | * which haven't been pushed to a remote branch. Assuming 'origin' is your | |
2921 | * upstream remote branch, using: | |
2922 | * | |
2923 | * $ tig log origin..HEAD | |
2924 | * | |
2925 | * will list what will be pushed to the remote branch. Optionally, the ending | |
2926 | * 'HEAD' can be left out since it is implied. | |
2927 | * | |
2928 | * Limiting by reachability | |
2929 | * ~~~~~~~~~~~~~~~~~~~~~~~~ | |
2930 | * Git interprets the range specifier "tag-1.0..tag-2.0" as | |
2931 | * "all commits reachable from 'tag-2.0' but not from 'tag-1.0'". | |
3a11b38f JF |
2932 | * Where reachability refers to what commits are ancestors (or part of the |
2933 | * history) of the branch or tagged revision in question. | |
2934 | * | |
468876c9 JF |
2935 | * If you prefer to specify which commit to preview in this way use the |
2936 | * following: | |
2937 | * | |
2938 | * $ tig log tag-2.0 ^tag-1.0 | |
2939 | * | |
57bdf034 JF |
2940 | * You can think of '^' as a negation operator. Using this alternate syntax, |
2941 | * it is possible to further prune commits by specifying multiple branch | |
2942 | * cut offs. | |
468876c9 | 2943 | * |
3a11b38f JF |
2944 | * Combining revisions specification |
2945 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
2946 | * Revisions options can to some degree be combined, which makes it possible | |
2947 | * to say "show at most 20 commits from within the last month that changed | |
2948 | * files under the Documentation/ directory." | |
2949 | * | |
2950 | * $ tig -- --since=1.month -n20 -- Documentation/ | |
2951 | * | |
2952 | * Examining all repository references | |
2953 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
2954 | * In some cases, it can be useful to query changes across all references | |
2955 | * in a repository. An example is to ask "did any line of development in | |
2956 | * this repository change a particular file within the last week". This | |
2957 | * can be accomplished using: | |
2958 | * | |
2959 | * $ tig -- --all --since=1.week -- Makefile | |
2960 | * | |
6706b2ba JF |
2961 | * BUGS |
2962 | * ---- | |
2963 | * Known bugs and problems: | |
2964 | * | |
10e290ee JF |
2965 | * - In it's current state tig is pretty much UTF-8 only. |
2966 | * | |
6706b2ba | 2967 | * - If the screen width is very small the main view can draw |
468876c9 JF |
2968 | * outside the current view causing bad wrapping. Same goes |
2969 | * for title and status windows. | |
6706b2ba | 2970 | * |
c19f8017 JF |
2971 | * - The cursor can wrap-around on the last line and cause the |
2972 | * window to scroll. | |
2973 | * | |
6a7bb912 JF |
2974 | * - The prompt doesn't work while loading. |
2975 | * | |
4c6fabc2 JF |
2976 | * TODO |
2977 | * ---- | |
2978 | * Features that should be explored. | |
2979 | * | |
fac7db6c | 2980 | * - Searching. |
4c6fabc2 JF |
2981 | * |
2982 | * - Locale support. | |
2983 | * | |
b801d8b2 JF |
2984 | * COPYRIGHT |
2985 | * --------- | |
192d9a60 | 2986 | * Copyright (c) 2006 Jonas Fonseca <fonseca@diku.dk> |
b801d8b2 JF |
2987 | * |
2988 | * This program is free software; you can redistribute it and/or modify | |
2989 | * it under the terms of the GNU General Public License as published by | |
2990 | * the Free Software Foundation; either version 2 of the License, or | |
2991 | * (at your option) any later version. | |
2992 | * | |
2993 | * SEE ALSO | |
2994 | * -------- | |
f84f9d28 JF |
2995 | * - link:http://www.kernel.org/pub/software/scm/git/docs/[git(7)], |
2996 | * - link:http://www.kernel.org/pub/software/scm/cogito/docs/[cogito(7)] | |
2997 | * | |
2998 | * Other git repository browsers: | |
5cfbde75 | 2999 | * |
f84f9d28 JF |
3000 | * - gitk(1) |
3001 | * - qgit(1) | |
3002 | * - gitview(1) | |
b801d8b2 | 3003 | **/ |