Commit | Line | Data |
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4a2909a7 JF |
1 | /* Copyright (c) 2006 Jonas Fonseca <fonseca@diku.dk> |
2 | * See license info at the bottom. */ | |
b801d8b2 JF |
3 | /** |
4 | * TIG(1) | |
5 | * ====== | |
6 | * | |
7 | * NAME | |
8 | * ---- | |
9 | * tig - text-mode interface for git | |
10 | * | |
11 | * SYNOPSIS | |
12 | * -------- | |
13 | * [verse] | |
03a93dbb JF |
14 | * tig [options] |
15 | * tig [options] [--] [git log options] | |
b76c2afc JF |
16 | * tig [options] log [git log options] |
17 | * tig [options] diff [git diff options] | |
8855ada4 JF |
18 | * tig [options] show [git show options] |
19 | * tig [options] < [git command output] | |
b801d8b2 JF |
20 | * |
21 | * DESCRIPTION | |
22 | * ----------- | |
23 | * Browse changes in a git repository. | |
b801d8b2 JF |
24 | **/ |
25 | ||
b76c2afc JF |
26 | #ifndef VERSION |
27 | #define VERSION "tig-0.1" | |
28 | #endif | |
29 | ||
8855ada4 JF |
30 | #ifndef DEBUG |
31 | #define NDEBUG | |
32 | #endif | |
33 | ||
22f66b0a | 34 | #include <assert.h> |
4c6fabc2 | 35 | #include <errno.h> |
22f66b0a JF |
36 | #include <ctype.h> |
37 | #include <signal.h> | |
b801d8b2 | 38 | #include <stdarg.h> |
b801d8b2 | 39 | #include <stdio.h> |
22f66b0a | 40 | #include <stdlib.h> |
b801d8b2 | 41 | #include <string.h> |
6908bdbd | 42 | #include <unistd.h> |
b76c2afc | 43 | #include <time.h> |
b801d8b2 JF |
44 | |
45 | #include <curses.h> | |
b801d8b2 JF |
46 | |
47 | static void die(const char *err, ...); | |
48 | static void report(const char *msg, ...); | |
1ba2ae4b | 49 | static void set_nonblocking_input(bool loading); |
6b161b31 JF |
50 | |
51 | #define ABS(x) ((x) >= 0 ? (x) : -(x)) | |
52 | #define MIN(x, y) ((x) < (y) ? (x) : (y)) | |
53 | ||
54 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) | |
55 | #define STRING_SIZE(x) (sizeof(x) - 1) | |
b76c2afc | 56 | |
2e8488b4 JF |
57 | #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */ |
58 | #define SIZEOF_CMD 1024 /* Size of command buffer. */ | |
b801d8b2 | 59 | |
82e78006 JF |
60 | /* This color name can be used to refer to the default term colors. */ |
61 | #define COLOR_DEFAULT (-1) | |
78c70acd | 62 | |
82e78006 | 63 | /* The format and size of the date column in the main view. */ |
4c6fabc2 | 64 | #define DATE_FORMAT "%Y-%m-%d %H:%M" |
6b161b31 | 65 | #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ") |
4c6fabc2 | 66 | |
a28bcc22 | 67 | /* The default interval between line numbers. */ |
4a2909a7 | 68 | #define NUMBER_INTERVAL 1 |
82e78006 | 69 | |
a28bcc22 JF |
70 | #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3) |
71 | ||
8855ada4 | 72 | /* Some ascii-shorthands fitted into the ncurses namespace. */ |
a28bcc22 JF |
73 | #define KEY_TAB '\t' |
74 | #define KEY_RETURN '\r' | |
4a2909a7 JF |
75 | #define KEY_ESC 27 |
76 | ||
a28bcc22 | 77 | /* User action requests. */ |
4a2909a7 | 78 | enum request { |
a28bcc22 JF |
79 | /* Offset all requests to avoid conflicts with ncurses getch values. */ |
80 | REQ_OFFSET = KEY_MAX + 1, | |
81 | ||
4a2909a7 | 82 | /* XXX: Keep the view request first and in sync with views[]. */ |
2e8488b4 | 83 | REQ_VIEW_MAIN, |
4a2909a7 JF |
84 | REQ_VIEW_DIFF, |
85 | REQ_VIEW_LOG, | |
2e8488b4 | 86 | REQ_VIEW_HELP, |
6908bdbd | 87 | REQ_VIEW_PAGER, |
4a2909a7 | 88 | |
6b161b31 | 89 | REQ_ENTER, |
03a93dbb JF |
90 | REQ_QUIT, |
91 | REQ_PROMPT, | |
4a2909a7 | 92 | REQ_SCREEN_REDRAW, |
fac7db6c | 93 | REQ_SCREEN_RESIZE, |
4a2909a7 | 94 | REQ_SCREEN_UPDATE, |
03a93dbb JF |
95 | REQ_SHOW_VERSION, |
96 | REQ_STOP_LOADING, | |
4a2909a7 | 97 | REQ_TOGGLE_LINE_NUMBERS, |
03a93dbb | 98 | REQ_VIEW_NEXT, |
4a2909a7 JF |
99 | |
100 | REQ_MOVE_UP, | |
101 | REQ_MOVE_DOWN, | |
102 | REQ_MOVE_PAGE_UP, | |
103 | REQ_MOVE_PAGE_DOWN, | |
104 | REQ_MOVE_FIRST_LINE, | |
105 | REQ_MOVE_LAST_LINE, | |
106 | ||
107 | REQ_SCROLL_LINE_UP, | |
108 | REQ_SCROLL_LINE_DOWN, | |
109 | REQ_SCROLL_PAGE_UP, | |
110 | REQ_SCROLL_PAGE_DOWN, | |
111 | }; | |
112 | ||
4c6fabc2 | 113 | struct commit { |
a28bcc22 | 114 | char id[41]; /* SHA1 ID. */ |
6b161b31 | 115 | char title[75]; /* The first line of the commit message. */ |
a28bcc22 JF |
116 | char author[75]; /* The author of the commit. */ |
117 | struct tm time; /* Date from the author ident. */ | |
4c6fabc2 JF |
118 | }; |
119 | ||
03a93dbb JF |
120 | /* |
121 | * String helpers | |
122 | */ | |
78c70acd | 123 | |
82e78006 JF |
124 | static inline void |
125 | string_ncopy(char *dst, char *src, int dstlen) | |
126 | { | |
127 | strncpy(dst, src, dstlen - 1); | |
128 | dst[dstlen - 1] = 0; | |
03a93dbb | 129 | |
82e78006 JF |
130 | } |
131 | ||
132 | /* Shorthand for safely copying into a fixed buffer. */ | |
133 | #define string_copy(dst, src) \ | |
134 | string_ncopy(dst, src, sizeof(dst)) | |
135 | ||
03a93dbb JF |
136 | /* Shell quoting |
137 | * | |
138 | * NOTE: The following is a slightly modified copy of the git project's shell | |
139 | * quoting routines found in the quote.c file. | |
140 | * | |
141 | * Help to copy the thing properly quoted for the shell safety. any single | |
142 | * quote is replaced with '\'', any exclamation point is replaced with '\!', | |
143 | * and the whole thing is enclosed in a | |
144 | * | |
145 | * E.g. | |
146 | * original sq_quote result | |
147 | * name ==> name ==> 'name' | |
148 | * a b ==> a b ==> 'a b' | |
149 | * a'b ==> a'\''b ==> 'a'\''b' | |
150 | * a!b ==> a'\!'b ==> 'a'\!'b' | |
151 | */ | |
152 | ||
153 | static size_t | |
154 | sq_quote(char buf[SIZEOF_CMD], size_t bufsize, const char *src) | |
155 | { | |
156 | char c; | |
157 | ||
158 | #define BUFPUT(x) ( (bufsize < SIZEOF_CMD) && (buf[bufsize++] = (x)) ) | |
159 | ||
160 | BUFPUT('\''); | |
161 | while ((c = *src++)) { | |
162 | if (c == '\'' || c == '!') { | |
163 | BUFPUT('\''); | |
164 | BUFPUT('\\'); | |
165 | BUFPUT(c); | |
166 | BUFPUT('\''); | |
167 | } else { | |
168 | BUFPUT(c); | |
169 | } | |
170 | } | |
171 | BUFPUT('\''); | |
172 | ||
173 | return bufsize; | |
174 | } | |
175 | ||
82e78006 | 176 | |
b76c2afc JF |
177 | /** |
178 | * OPTIONS | |
179 | * ------- | |
180 | **/ | |
181 | ||
2e8488b4 JF |
182 | static int opt_line_number = FALSE; |
183 | static int opt_num_interval = NUMBER_INTERVAL; | |
6b161b31 | 184 | static enum request opt_request = REQ_VIEW_MAIN; |
03a93dbb | 185 | static char opt_cmd[SIZEOF_CMD] = ""; |
6908bdbd | 186 | static FILE *opt_pipe = NULL; |
b76c2afc | 187 | |
b76c2afc | 188 | /* Returns the index of log or diff command or -1 to exit. */ |
8855ada4 | 189 | static bool |
b76c2afc JF |
190 | parse_options(int argc, char *argv[]) |
191 | { | |
192 | int i; | |
193 | ||
194 | for (i = 1; i < argc; i++) { | |
195 | char *opt = argv[i]; | |
196 | ||
197 | /** | |
b76c2afc | 198 | * -l:: |
1ba2ae4b | 199 | * Start up in log view using the internal log command. |
b76c2afc | 200 | **/ |
6b161b31 | 201 | if (!strcmp(opt, "-l")) { |
4a2909a7 | 202 | opt_request = REQ_VIEW_LOG; |
6b161b31 JF |
203 | continue; |
204 | } | |
b76c2afc JF |
205 | |
206 | /** | |
207 | * -d:: | |
1ba2ae4b | 208 | * Start up in diff view using the internal diff command. |
b76c2afc | 209 | **/ |
6b161b31 | 210 | if (!strcmp(opt, "-d")) { |
4a2909a7 | 211 | opt_request = REQ_VIEW_DIFF; |
6b161b31 JF |
212 | continue; |
213 | } | |
b76c2afc JF |
214 | |
215 | /** | |
2e8488b4 | 216 | * -n[INTERVAL], --line-number[=INTERVAL]:: |
b76c2afc | 217 | * Prefix line numbers in log and diff view. |
2e8488b4 | 218 | * Optionally, with interval different than each line. |
b76c2afc | 219 | **/ |
6b161b31 | 220 | if (!strncmp(opt, "-n", 2) || |
8855ada4 | 221 | !strncmp(opt, "--line-number", 13)) { |
2e8488b4 JF |
222 | char *num = opt; |
223 | ||
224 | if (opt[1] == 'n') { | |
225 | num = opt + 2; | |
226 | ||
227 | } else if (opt[STRING_SIZE("--line-number")] == '=') { | |
228 | num = opt + STRING_SIZE("--line-number="); | |
229 | } | |
230 | ||
231 | if (isdigit(*num)) | |
232 | opt_num_interval = atoi(num); | |
233 | ||
6b161b31 JF |
234 | opt_line_number = TRUE; |
235 | continue; | |
236 | } | |
b76c2afc JF |
237 | |
238 | /** | |
239 | * -v, --version:: | |
240 | * Show version and exit. | |
241 | **/ | |
6b161b31 | 242 | if (!strcmp(opt, "-v") || |
8855ada4 | 243 | !strcmp(opt, "--version")) { |
b76c2afc | 244 | printf("tig version %s\n", VERSION); |
8855ada4 | 245 | return FALSE; |
6b161b31 | 246 | } |
b76c2afc JF |
247 | |
248 | /** | |
03a93dbb | 249 | * \--:: |
889cb462 | 250 | * End of tig(1) options. Useful when specifying commands |
03a93dbb JF |
251 | * for the main view. Example: |
252 | * | |
889cb462 | 253 | * $ tig -- --since=1.month |
b76c2afc | 254 | **/ |
6908bdbd JF |
255 | if (!strcmp(opt, "--")) { |
256 | i++; | |
257 | break; | |
258 | } | |
03a93dbb | 259 | |
8855ada4 JF |
260 | /** |
261 | * log [options]:: | |
262 | * Open log view using the given git log options. | |
263 | * | |
264 | * diff [options]:: | |
265 | * Open diff view using the given git diff options. | |
266 | * | |
267 | * show [options]:: | |
268 | * Open diff view using the given git show options. | |
269 | **/ | |
270 | if (!strcmp(opt, "log") || | |
271 | !strcmp(opt, "diff") || | |
272 | !strcmp(opt, "show")) { | |
273 | opt_request = opt[0] == 'l' | |
274 | ? REQ_VIEW_LOG : REQ_VIEW_DIFF; | |
275 | break; | |
276 | } | |
277 | ||
278 | /* Make stuff like: | |
889cb462 | 279 | * |
03a93dbb JF |
280 | * $ tig tag-1.0..HEAD |
281 | * | |
8855ada4 | 282 | * work. */ |
03a93dbb | 283 | if (opt[0] && opt[0] != '-') |
6908bdbd | 284 | break; |
6b161b31 JF |
285 | |
286 | die("unknown command '%s'", opt); | |
b76c2afc JF |
287 | } |
288 | ||
6908bdbd | 289 | if (!isatty(STDIN_FILENO)) { |
8855ada4 JF |
290 | /** |
291 | * Pager mode | |
292 | * ~~~~~~~~~~ | |
293 | * If stdin is a pipe, any log or diff options will be ignored and the | |
294 | * pager view will be opened loading data from stdin. The pager mode | |
295 | * can be used for colorizing output from various git commands. | |
296 | * | |
297 | * Example on how to colorize the output of git-show(1): | |
298 | * | |
299 | * $ git show | tig | |
300 | **/ | |
6908bdbd JF |
301 | opt_request = REQ_VIEW_PAGER; |
302 | opt_pipe = stdin; | |
303 | ||
304 | } else if (i < argc) { | |
305 | size_t buf_size; | |
306 | ||
8855ada4 JF |
307 | /** |
308 | * Git command options | |
309 | * ~~~~~~~~~~~~~~~~~~~ | |
8855ada4 JF |
310 | * All git command options specified on the command line will |
311 | * be passed to the given command and all will be shell quoted | |
312 | * before used. | |
313 | * | |
314 | * NOTE: It is possible to specify options even for the main | |
eb98559e | 315 | * view. If doing this you should not touch the `--pretty` |
8855ada4 JF |
316 | * option. |
317 | * | |
318 | * Example on how to open the log view and show both author and | |
319 | * committer information: | |
320 | * | |
321 | * $ tig log --pretty=fuller | |
322 | **/ | |
323 | ||
6908bdbd | 324 | if (opt_request == REQ_VIEW_MAIN) |
8855ada4 JF |
325 | /* XXX: This is vulnerable to the user overriding |
326 | * options required for the main view parser. */ | |
6908bdbd JF |
327 | string_copy(opt_cmd, "git log --stat --pretty=raw"); |
328 | else | |
329 | string_copy(opt_cmd, "git"); | |
330 | buf_size = strlen(opt_cmd); | |
331 | ||
332 | while (buf_size < sizeof(opt_cmd) && i < argc) { | |
333 | opt_cmd[buf_size++] = ' '; | |
334 | buf_size = sq_quote(opt_cmd, buf_size, argv[i++]); | |
335 | } | |
336 | ||
337 | if (buf_size >= sizeof(opt_cmd)) | |
338 | die("command too long"); | |
339 | ||
340 | opt_cmd[buf_size] = 0; | |
341 | ||
342 | } | |
343 | ||
8855ada4 | 344 | return TRUE; |
b76c2afc JF |
345 | } |
346 | ||
347 | ||
4a2909a7 JF |
348 | /** |
349 | * KEYS | |
350 | * ---- | |
4a2909a7 JF |
351 | **/ |
352 | ||
353 | #define HELP "(d)iff, (l)og, (m)ain, (q)uit, (v)ersion, (h)elp" | |
354 | ||
355 | struct keymap { | |
356 | int alias; | |
357 | int request; | |
358 | }; | |
359 | ||
360 | struct keymap keymap[] = { | |
6b161b31 JF |
361 | /** |
362 | * View switching | |
363 | * ~~~~~~~~~~~~~~ | |
364 | * d:: | |
365 | * Switch to diff view. | |
366 | * l:: | |
367 | * Switch to log view. | |
368 | * m:: | |
369 | * Switch to main view. | |
8855ada4 JF |
370 | * p:: |
371 | * Switch to pager view. | |
6b161b31 JF |
372 | * h:: |
373 | * Show man page. | |
374 | * Return:: | |
375 | * If in main view split the view | |
376 | * and show the diff in the bottom view. | |
03a93dbb JF |
377 | * Tab:: |
378 | * Switch to next view. | |
6b161b31 JF |
379 | **/ |
380 | { 'm', REQ_VIEW_MAIN }, | |
381 | { 'd', REQ_VIEW_DIFF }, | |
382 | { 'l', REQ_VIEW_LOG }, | |
8855ada4 | 383 | { 'p', REQ_VIEW_PAGER }, |
6b161b31 JF |
384 | { 'h', REQ_VIEW_HELP }, |
385 | ||
03a93dbb | 386 | { KEY_TAB, REQ_VIEW_NEXT }, |
6b161b31 JF |
387 | { KEY_RETURN, REQ_ENTER }, |
388 | ||
389 | /** | |
390 | * Cursor navigation | |
391 | * ~~~~~~~~~~~~~~~~~ | |
392 | * Up, k:: | |
393 | * Move curser one line up. | |
394 | * Down, j:: | |
395 | * Move cursor one line down. | |
396 | * Page Up:: | |
397 | * Move curser one page up. | |
398 | * Page Down:: | |
399 | * Move cursor one page down. | |
400 | * Home:: | |
401 | * Jump to first line. | |
402 | * End:: | |
403 | * Jump to last line. | |
404 | **/ | |
4a2909a7 JF |
405 | { KEY_UP, REQ_MOVE_UP }, |
406 | { 'k', REQ_MOVE_UP }, | |
407 | { KEY_DOWN, REQ_MOVE_DOWN }, | |
408 | { 'j', REQ_MOVE_DOWN }, | |
409 | { KEY_HOME, REQ_MOVE_FIRST_LINE }, | |
410 | { KEY_END, REQ_MOVE_LAST_LINE }, | |
411 | { KEY_NPAGE, REQ_MOVE_PAGE_DOWN }, | |
412 | { KEY_PPAGE, REQ_MOVE_PAGE_UP }, | |
413 | ||
6b161b31 JF |
414 | /** |
415 | * Scrolling | |
416 | * ~~~~~~~~~ | |
417 | * Insert:: | |
418 | * Scroll view one line up. | |
419 | * Delete:: | |
420 | * Scroll view one line down. | |
421 | * w:: | |
422 | * Scroll view one page up. | |
423 | * s:: | |
424 | * Scroll view one page down. | |
425 | **/ | |
a28bcc22 JF |
426 | { KEY_IC, REQ_SCROLL_LINE_UP }, |
427 | { KEY_DC, REQ_SCROLL_LINE_DOWN }, | |
428 | { 'w', REQ_SCROLL_PAGE_UP }, | |
429 | { 's', REQ_SCROLL_PAGE_DOWN }, | |
430 | ||
6b161b31 JF |
431 | /** |
432 | * Misc | |
433 | * ~~~~ | |
434 | * q, Escape:: | |
435 | * Quit | |
436 | * r:: | |
437 | * Redraw screen. | |
438 | * z:: | |
439 | * Stop all background loading. | |
440 | * v:: | |
441 | * Show version. | |
442 | * n:: | |
443 | * Toggle line numbers on/off. | |
03a93dbb | 444 | * ':':: |
8855ada4 JF |
445 | * Open prompt. This allows you to specify what git command to run. |
446 | * Example: | |
447 | * | |
448 | * :log -p | |
449 | * | |
6b161b31 | 450 | **/ |
4a2909a7 JF |
451 | { KEY_ESC, REQ_QUIT }, |
452 | { 'q', REQ_QUIT }, | |
453 | { 'z', REQ_STOP_LOADING }, | |
454 | { 'v', REQ_SHOW_VERSION }, | |
455 | { 'r', REQ_SCREEN_REDRAW }, | |
456 | { 'n', REQ_TOGGLE_LINE_NUMBERS }, | |
03a93dbb | 457 | { ':', REQ_PROMPT }, |
4a2909a7 JF |
458 | |
459 | /* wgetch() with nodelay() enabled returns ERR when there's no input. */ | |
460 | { ERR, REQ_SCREEN_UPDATE }, | |
4b76734f | 461 | |
fac7db6c JF |
462 | /* Use the ncurses SIGWINCH handler. */ |
463 | { KEY_RESIZE, REQ_SCREEN_RESIZE }, | |
4a2909a7 JF |
464 | }; |
465 | ||
6b161b31 JF |
466 | static enum request |
467 | get_request(int key) | |
4a2909a7 JF |
468 | { |
469 | int i; | |
470 | ||
471 | for (i = 0; i < ARRAY_SIZE(keymap); i++) | |
6b161b31 | 472 | if (keymap[i].alias == key) |
4a2909a7 JF |
473 | return keymap[i].request; |
474 | ||
6b161b31 | 475 | return (enum request) key; |
4a2909a7 JF |
476 | } |
477 | ||
478 | ||
b76c2afc JF |
479 | /* |
480 | * Line-oriented content detection. | |
6b161b31 JF |
481 | */ |
482 | ||
2e8488b4 | 483 | #define LINE_INFO \ |
6b161b31 JF |
484 | /* Line type String to match Foreground Background Attributes |
485 | * --------- --------------- ---------- ---------- ---------- */ \ | |
a28bcc22 JF |
486 | /* Diff markup */ \ |
487 | LINE(DIFF, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
8855ada4 | 488 | LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
489 | LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
490 | LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
491 | LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \ | |
492 | LINE(DIFF_OLDMODE, "old mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
493 | LINE(DIFF_NEWMODE, "new mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
494 | LINE(DIFF_COPY, "copy ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
495 | LINE(DIFF_RENAME, "rename ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
496 | LINE(DIFF_SIM, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
497 | LINE(DIFF_DISSIM, "dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
498 | /* Pretty print commit header */ \ | |
6908bdbd | 499 | LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
8855ada4 | 500 | LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
6908bdbd JF |
501 | LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
502 | LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
8855ada4 JF |
503 | LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
504 | LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
a28bcc22 JF |
505 | /* Raw commit header */ \ |
506 | LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
507 | LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
508 | LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
8855ada4 | 509 | LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
510 | LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
511 | /* Misc */ \ | |
512 | LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
513 | LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
514 | /* UI colors */ \ | |
515 | LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \ | |
516 | LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \ | |
517 | LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
6b161b31 JF |
518 | LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \ |
519 | LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \ | |
a28bcc22 JF |
520 | LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
521 | LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
522 | LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \ | |
523 | LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), | |
2e8488b4 | 524 | |
78c70acd | 525 | enum line_type { |
2e8488b4 JF |
526 | #define LINE(type, line, fg, bg, attr) \ |
527 | LINE_##type | |
528 | LINE_INFO | |
529 | #undef LINE | |
78c70acd JF |
530 | }; |
531 | ||
532 | struct line_info { | |
2e8488b4 JF |
533 | char *line; /* The start of line to match. */ |
534 | int linelen; /* Size of string to match. */ | |
535 | int fg, bg, attr; /* Color and text attributes for the lines. */ | |
78c70acd JF |
536 | }; |
537 | ||
2e8488b4 | 538 | static struct line_info line_info[] = { |
78c70acd | 539 | #define LINE(type, line, fg, bg, attr) \ |
a28bcc22 | 540 | { (line), STRING_SIZE(line), (fg), (bg), (attr) } |
2e8488b4 JF |
541 | LINE_INFO |
542 | #undef LINE | |
78c70acd JF |
543 | }; |
544 | ||
2e8488b4 JF |
545 | static enum line_type |
546 | get_line_type(char *line) | |
78c70acd JF |
547 | { |
548 | int linelen = strlen(line); | |
a28bcc22 | 549 | enum line_type type; |
78c70acd | 550 | |
a28bcc22 | 551 | for (type = 0; type < ARRAY_SIZE(line_info); type++) |
2e8488b4 | 552 | /* Case insensitive search matches Signed-off-by lines better. */ |
a28bcc22 JF |
553 | if (linelen >= line_info[type].linelen && |
554 | !strncasecmp(line_info[type].line, line, line_info[type].linelen)) | |
555 | return type; | |
78c70acd | 556 | |
2e8488b4 | 557 | return LINE_DEFAULT; |
78c70acd JF |
558 | } |
559 | ||
2e8488b4 | 560 | static inline int |
78c70acd JF |
561 | get_line_attr(enum line_type type) |
562 | { | |
2e8488b4 JF |
563 | assert(type < ARRAY_SIZE(line_info)); |
564 | return COLOR_PAIR(type) | line_info[type].attr; | |
78c70acd JF |
565 | } |
566 | ||
567 | static void | |
568 | init_colors(void) | |
569 | { | |
82e78006 JF |
570 | int default_bg = COLOR_BLACK; |
571 | int default_fg = COLOR_WHITE; | |
a28bcc22 | 572 | enum line_type type; |
78c70acd JF |
573 | |
574 | start_color(); | |
575 | ||
576 | if (use_default_colors() != ERR) { | |
82e78006 JF |
577 | default_bg = -1; |
578 | default_fg = -1; | |
78c70acd JF |
579 | } |
580 | ||
a28bcc22 JF |
581 | for (type = 0; type < ARRAY_SIZE(line_info); type++) { |
582 | struct line_info *info = &line_info[type]; | |
82e78006 JF |
583 | int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg; |
584 | int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg; | |
78c70acd | 585 | |
a28bcc22 | 586 | init_pair(type, fg, bg); |
78c70acd JF |
587 | } |
588 | } | |
589 | ||
590 | ||
1ba2ae4b JF |
591 | /** |
592 | * ENVIRONMENT VARIABLES | |
593 | * --------------------- | |
594 | * It is possible to alter which commands are used for the different views. | |
595 | * If for example you prefer commits in the main to be sorted by date and | |
596 | * only show 500 commits, use: | |
597 | * | |
598 | * $ TIG_MAIN_CMD="git log --date-order -n500 --pretty=raw %s" tig | |
599 | * | |
600 | * Or set the variable permanently in your environment. | |
601 | * | |
602 | * Notice, how `%s` is used to specify the commit reference. There can | |
603 | * be a maximum of 5 `%s` ref specifications. | |
604 | * | |
605 | * TIG_DIFF_CMD:: | |
606 | * The command used for the diff view. By default, git show is used | |
607 | * as a backend. | |
608 | * | |
609 | * TIG_LOG_CMD:: | |
610 | * The command used for the log view. | |
611 | * | |
612 | * TIG_MAIN_CMD:: | |
613 | * The command used for the main view. Note, you must always specify | |
614 | * the option: `--pretty=raw` since the main view parser expects to | |
615 | * read that format. | |
616 | **/ | |
617 | ||
618 | #define TIG_DIFF_CMD \ | |
619 | "git show --patch-with-stat --find-copies-harder -B -C %s" | |
620 | ||
621 | #define TIG_LOG_CMD \ | |
622 | "git log --cc --stat -n100 %s" | |
623 | ||
624 | #define TIG_MAIN_CMD \ | |
625 | "git log --topo-order --stat --pretty=raw %s" | |
626 | ||
627 | /* We silently ignore that the following are also exported. */ | |
628 | ||
629 | #define TIG_HELP_CMD \ | |
630 | "man tig 2> /dev/null" | |
631 | ||
632 | #define TIG_PAGER_CMD \ | |
633 | "" | |
634 | ||
635 | ||
b801d8b2 JF |
636 | /* |
637 | * Viewer | |
638 | */ | |
639 | ||
640 | struct view { | |
03a93dbb | 641 | const char *name; /* View name */ |
1ba2ae4b JF |
642 | char *cmd_fmt; /* Default command line format */ |
643 | char *cmd_env; /* Command line set via environment */ | |
03a93dbb JF |
644 | char *id; /* Points to either of ref_{head,commit} */ |
645 | size_t objsize; /* Size of objects in the line index */ | |
6b161b31 JF |
646 | |
647 | struct view_ops { | |
8855ada4 | 648 | /* Draw one line; @lineno must be < view->height. */ |
6b161b31 | 649 | bool (*draw)(struct view *view, unsigned int lineno); |
8855ada4 | 650 | /* Read one line; updates view->line. */ |
6b161b31 | 651 | bool (*read)(struct view *view, char *line); |
8855ada4 | 652 | /* Depending on view, change display based on current line. */ |
6b161b31 JF |
653 | bool (*enter)(struct view *view); |
654 | } *ops; | |
22f66b0a | 655 | |
03a93dbb | 656 | char cmd[SIZEOF_CMD]; /* Command buffer */ |
49f2b43f JF |
657 | char ref[SIZEOF_REF]; /* Hovered commit reference */ |
658 | char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */ | |
2e8488b4 | 659 | |
8855ada4 JF |
660 | int height, width; /* The width and height of the main window */ |
661 | WINDOW *win; /* The main window */ | |
662 | WINDOW *title; /* The title window living below the main window */ | |
b801d8b2 JF |
663 | |
664 | /* Navigation */ | |
665 | unsigned long offset; /* Offset of the window top */ | |
666 | unsigned long lineno; /* Current line number */ | |
667 | ||
668 | /* Buffering */ | |
669 | unsigned long lines; /* Total number of lines */ | |
8855ada4 JF |
670 | void **line; /* Line index; each line contains user data */ |
671 | unsigned int digits; /* Number of digits in the lines member. */ | |
b801d8b2 JF |
672 | |
673 | /* Loading */ | |
674 | FILE *pipe; | |
2e8488b4 | 675 | time_t start_time; |
b801d8b2 JF |
676 | }; |
677 | ||
6b161b31 JF |
678 | static struct view_ops pager_ops; |
679 | static struct view_ops main_ops; | |
a28bcc22 | 680 | |
49f2b43f JF |
681 | char ref_head[SIZEOF_REF] = "HEAD"; |
682 | char ref_commit[SIZEOF_REF] = "HEAD"; | |
683 | ||
1ba2ae4b JF |
684 | #define VIEW_STR(name, cmd, env, ref, objsize, ops) \ |
685 | { name, cmd, #env, ref, objsize, ops } | |
686 | ||
687 | #define VIEW_(id, name, ops, ref, objsize) \ | |
688 | VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, objsize, ops) | |
689 | ||
b801d8b2 | 690 | static struct view views[] = { |
1ba2ae4b JF |
691 | VIEW_(MAIN, "main", &main_ops, ref_head, sizeof(struct commit)), |
692 | VIEW_(DIFF, "diff", &pager_ops, ref_commit, sizeof(char)), | |
693 | VIEW_(LOG, "log", &pager_ops, ref_head, sizeof(char)), | |
694 | VIEW_(HELP, "help", &pager_ops, ref_head, sizeof(char)), | |
695 | VIEW_(PAGER, "pager", &pager_ops, "static", sizeof(char)), | |
b801d8b2 JF |
696 | }; |
697 | ||
a28bcc22 JF |
698 | #define VIEW(req) (&views[(req) - REQ_OFFSET - 1]) |
699 | ||
4c6fabc2 | 700 | /* The display array of active views and the index of the current view. */ |
6b161b31 | 701 | static struct view *display[2]; |
4c6fabc2 | 702 | static unsigned int current_view; |
22f66b0a | 703 | |
b801d8b2 | 704 | #define foreach_view(view, i) \ |
6b161b31 | 705 | for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++) |
b801d8b2 | 706 | |
4c6fabc2 | 707 | |
b801d8b2 | 708 | static void |
82e78006 | 709 | redraw_view_from(struct view *view, int lineno) |
b801d8b2 | 710 | { |
82e78006 | 711 | assert(0 <= lineno && lineno < view->height); |
b801d8b2 | 712 | |
82e78006 | 713 | for (; lineno < view->height; lineno++) { |
6b161b31 | 714 | if (!view->ops->draw(view, lineno)) |
fd85fef1 | 715 | break; |
b801d8b2 JF |
716 | } |
717 | ||
718 | redrawwin(view->win); | |
719 | wrefresh(view->win); | |
720 | } | |
721 | ||
b76c2afc | 722 | static void |
82e78006 JF |
723 | redraw_view(struct view *view) |
724 | { | |
725 | wclear(view->win); | |
726 | redraw_view_from(view, 0); | |
727 | } | |
728 | ||
6b161b31 JF |
729 | static void |
730 | resize_display(void) | |
b76c2afc | 731 | { |
03a93dbb | 732 | int offset, i; |
6b161b31 JF |
733 | struct view *base = display[0]; |
734 | struct view *view = display[1] ? display[1] : display[0]; | |
b76c2afc | 735 | |
6b161b31 | 736 | /* Setup window dimensions */ |
b76c2afc | 737 | |
03a93dbb | 738 | getmaxyx(stdscr, base->height, base->width); |
b76c2afc | 739 | |
6b161b31 | 740 | /* Make room for the status window. */ |
03a93dbb | 741 | base->height -= 1; |
6b161b31 JF |
742 | |
743 | if (view != base) { | |
03a93dbb JF |
744 | /* Horizontal split. */ |
745 | view->width = base->width; | |
6b161b31 JF |
746 | view->height = SCALE_SPLIT_VIEW(base->height); |
747 | base->height -= view->height; | |
748 | ||
749 | /* Make room for the title bar. */ | |
750 | view->height -= 1; | |
751 | } | |
752 | ||
753 | /* Make room for the title bar. */ | |
754 | base->height -= 1; | |
755 | ||
756 | offset = 0; | |
757 | ||
758 | foreach_view (view, i) { | |
b76c2afc | 759 | if (!view->win) { |
6b161b31 JF |
760 | view->win = newwin(view->height, 0, offset, 0); |
761 | if (!view->win) | |
762 | die("Failed to create %s view", view->name); | |
763 | ||
764 | scrollok(view->win, TRUE); | |
765 | ||
766 | view->title = newwin(1, 0, offset + view->height, 0); | |
767 | if (!view->title) | |
768 | die("Failed to create title window"); | |
769 | ||
770 | } else { | |
771 | wresize(view->win, view->height, view->width); | |
772 | mvwin(view->win, offset, 0); | |
773 | mvwin(view->title, offset + view->height, 0); | |
774 | wrefresh(view->win); | |
a28bcc22 | 775 | } |
a28bcc22 | 776 | |
6b161b31 | 777 | offset += view->height + 1; |
b76c2afc | 778 | } |
6b161b31 | 779 | } |
b76c2afc | 780 | |
6b161b31 JF |
781 | static void |
782 | update_view_title(struct view *view) | |
783 | { | |
784 | if (view == display[current_view]) | |
785 | wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS)); | |
786 | else | |
787 | wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR)); | |
a28bcc22 | 788 | |
6b161b31 JF |
789 | werase(view->title); |
790 | wmove(view->title, 0, 0); | |
b76c2afc | 791 | |
6b161b31 | 792 | /* [main] ref: 334b506... - commit 6 of 4383 (0%) */ |
6908bdbd JF |
793 | |
794 | if (*view->ref) | |
795 | wprintw(view->title, "[%s] ref: %s", view->name, view->ref); | |
796 | else | |
797 | wprintw(view->title, "[%s]", view->name); | |
798 | ||
6b161b31 JF |
799 | if (view->lines) { |
800 | char *type = view == VIEW(REQ_VIEW_MAIN) ? "commit" : "line"; | |
801 | ||
802 | wprintw(view->title, " - %s %d of %d (%d%%)", | |
803 | type, | |
804 | view->lineno + 1, | |
805 | view->lines, | |
806 | (view->lineno + 1) * 100 / view->lines); | |
807 | } | |
808 | ||
809 | wrefresh(view->title); | |
810 | } | |
78c70acd | 811 | |
2e8488b4 JF |
812 | /* |
813 | * Navigation | |
814 | */ | |
815 | ||
4a2909a7 | 816 | /* Scrolling backend */ |
b801d8b2 | 817 | static void |
4a2909a7 | 818 | do_scroll_view(struct view *view, int lines) |
b801d8b2 | 819 | { |
fd85fef1 JF |
820 | /* The rendering expects the new offset. */ |
821 | view->offset += lines; | |
822 | ||
823 | assert(0 <= view->offset && view->offset < view->lines); | |
824 | assert(lines); | |
b801d8b2 | 825 | |
82e78006 | 826 | /* Redraw the whole screen if scrolling is pointless. */ |
4c6fabc2 | 827 | if (view->height < ABS(lines)) { |
b76c2afc JF |
828 | redraw_view(view); |
829 | ||
830 | } else { | |
22f66b0a | 831 | int line = lines > 0 ? view->height - lines : 0; |
82e78006 | 832 | int end = line + ABS(lines); |
fd85fef1 JF |
833 | |
834 | wscrl(view->win, lines); | |
835 | ||
22f66b0a | 836 | for (; line < end; line++) { |
6b161b31 | 837 | if (!view->ops->draw(view, line)) |
fd85fef1 JF |
838 | break; |
839 | } | |
840 | } | |
841 | ||
842 | /* Move current line into the view. */ | |
843 | if (view->lineno < view->offset) { | |
844 | view->lineno = view->offset; | |
6b161b31 | 845 | view->ops->draw(view, 0); |
fd85fef1 JF |
846 | |
847 | } else if (view->lineno >= view->offset + view->height) { | |
848 | view->lineno = view->offset + view->height - 1; | |
6b161b31 | 849 | view->ops->draw(view, view->lineno - view->offset); |
fd85fef1 JF |
850 | } |
851 | ||
4c6fabc2 | 852 | assert(view->offset <= view->lineno && view->lineno < view->lines); |
fd85fef1 JF |
853 | |
854 | redrawwin(view->win); | |
855 | wrefresh(view->win); | |
9d3f5834 | 856 | report(""); |
fd85fef1 | 857 | } |
78c70acd | 858 | |
4a2909a7 | 859 | /* Scroll frontend */ |
fd85fef1 | 860 | static void |
6b161b31 | 861 | scroll_view(struct view *view, enum request request) |
fd85fef1 JF |
862 | { |
863 | int lines = 1; | |
b801d8b2 JF |
864 | |
865 | switch (request) { | |
4a2909a7 | 866 | case REQ_SCROLL_PAGE_DOWN: |
fd85fef1 | 867 | lines = view->height; |
4a2909a7 | 868 | case REQ_SCROLL_LINE_DOWN: |
b801d8b2 | 869 | if (view->offset + lines > view->lines) |
bde3653a | 870 | lines = view->lines - view->offset; |
b801d8b2 | 871 | |
fd85fef1 | 872 | if (lines == 0 || view->offset + view->height >= view->lines) { |
eb98559e | 873 | report("Cannot scroll beyond the last line"); |
b801d8b2 JF |
874 | return; |
875 | } | |
876 | break; | |
877 | ||
4a2909a7 | 878 | case REQ_SCROLL_PAGE_UP: |
fd85fef1 | 879 | lines = view->height; |
4a2909a7 | 880 | case REQ_SCROLL_LINE_UP: |
b801d8b2 JF |
881 | if (lines > view->offset) |
882 | lines = view->offset; | |
883 | ||
884 | if (lines == 0) { | |
eb98559e | 885 | report("Cannot scroll beyond the first line"); |
b801d8b2 JF |
886 | return; |
887 | } | |
888 | ||
fd85fef1 | 889 | lines = -lines; |
b801d8b2 | 890 | break; |
03a93dbb | 891 | |
6b161b31 JF |
892 | default: |
893 | die("request %d not handled in switch", request); | |
b801d8b2 JF |
894 | } |
895 | ||
4a2909a7 | 896 | do_scroll_view(view, lines); |
fd85fef1 | 897 | } |
b801d8b2 | 898 | |
4a2909a7 | 899 | /* Cursor moving */ |
fd85fef1 | 900 | static void |
6b161b31 | 901 | move_view(struct view *view, enum request request) |
fd85fef1 JF |
902 | { |
903 | int steps; | |
b801d8b2 | 904 | |
fd85fef1 | 905 | switch (request) { |
4a2909a7 | 906 | case REQ_MOVE_FIRST_LINE: |
78c70acd JF |
907 | steps = -view->lineno; |
908 | break; | |
909 | ||
4a2909a7 | 910 | case REQ_MOVE_LAST_LINE: |
78c70acd JF |
911 | steps = view->lines - view->lineno - 1; |
912 | break; | |
913 | ||
4a2909a7 | 914 | case REQ_MOVE_PAGE_UP: |
78c70acd JF |
915 | steps = view->height > view->lineno |
916 | ? -view->lineno : -view->height; | |
917 | break; | |
918 | ||
4a2909a7 | 919 | case REQ_MOVE_PAGE_DOWN: |
78c70acd JF |
920 | steps = view->lineno + view->height >= view->lines |
921 | ? view->lines - view->lineno - 1 : view->height; | |
922 | break; | |
923 | ||
4a2909a7 | 924 | case REQ_MOVE_UP: |
fd85fef1 JF |
925 | steps = -1; |
926 | break; | |
b801d8b2 | 927 | |
4a2909a7 | 928 | case REQ_MOVE_DOWN: |
fd85fef1 JF |
929 | steps = 1; |
930 | break; | |
6b161b31 JF |
931 | |
932 | default: | |
933 | die("request %d not handled in switch", request); | |
78c70acd | 934 | } |
b801d8b2 | 935 | |
4c6fabc2 | 936 | if (steps <= 0 && view->lineno == 0) { |
eb98559e | 937 | report("Cannot move beyond the first line"); |
78c70acd | 938 | return; |
b801d8b2 | 939 | |
6908bdbd | 940 | } else if (steps >= 0 && view->lineno + 1 >= view->lines) { |
eb98559e | 941 | report("Cannot move beyond the last line"); |
78c70acd | 942 | return; |
fd85fef1 JF |
943 | } |
944 | ||
4c6fabc2 | 945 | /* Move the current line */ |
fd85fef1 | 946 | view->lineno += steps; |
4c6fabc2 JF |
947 | assert(0 <= view->lineno && view->lineno < view->lines); |
948 | ||
949 | /* Repaint the old "current" line if we be scrolling */ | |
2e8488b4 JF |
950 | if (ABS(steps) < view->height) { |
951 | int prev_lineno = view->lineno - steps - view->offset; | |
952 | ||
953 | wmove(view->win, prev_lineno, 0); | |
954 | wclrtoeol(view->win); | |
03a93dbb | 955 | view->ops->draw(view, prev_lineno); |
2e8488b4 | 956 | } |
fd85fef1 | 957 | |
4c6fabc2 | 958 | /* Check whether the view needs to be scrolled */ |
fd85fef1 JF |
959 | if (view->lineno < view->offset || |
960 | view->lineno >= view->offset + view->height) { | |
961 | if (steps < 0 && -steps > view->offset) { | |
962 | steps = -view->offset; | |
b76c2afc JF |
963 | |
964 | } else if (steps > 0) { | |
965 | if (view->lineno == view->lines - 1 && | |
966 | view->lines > view->height) { | |
967 | steps = view->lines - view->offset - 1; | |
968 | if (steps >= view->height) | |
969 | steps -= view->height - 1; | |
970 | } | |
b801d8b2 | 971 | } |
78c70acd | 972 | |
4a2909a7 | 973 | do_scroll_view(view, steps); |
fd85fef1 | 974 | return; |
b801d8b2 JF |
975 | } |
976 | ||
4c6fabc2 | 977 | /* Draw the current line */ |
6b161b31 | 978 | view->ops->draw(view, view->lineno - view->offset); |
fd85fef1 | 979 | |
b801d8b2 JF |
980 | redrawwin(view->win); |
981 | wrefresh(view->win); | |
9d3f5834 | 982 | report(""); |
b801d8b2 JF |
983 | } |
984 | ||
b801d8b2 | 985 | |
2e8488b4 JF |
986 | /* |
987 | * Incremental updating | |
988 | */ | |
b801d8b2 | 989 | |
03a93dbb | 990 | static bool |
b801d8b2 JF |
991 | begin_update(struct view *view) |
992 | { | |
2e8488b4 | 993 | char *id = view->id; |
fd85fef1 | 994 | |
03a93dbb JF |
995 | if (opt_cmd[0]) { |
996 | string_copy(view->cmd, opt_cmd); | |
997 | opt_cmd[0] = 0; | |
8855ada4 JF |
998 | /* When running random commands, the view ref could have become |
999 | * invalid so clear it. */ | |
1000 | view->ref[0] = 0; | |
03a93dbb | 1001 | } else { |
1ba2ae4b JF |
1002 | char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt; |
1003 | ||
1004 | if (snprintf(view->cmd, sizeof(view->cmd), format, | |
1005 | id, id, id, id, id) >= sizeof(view->cmd)) | |
03a93dbb JF |
1006 | return FALSE; |
1007 | } | |
b801d8b2 | 1008 | |
6908bdbd JF |
1009 | /* Special case for the pager view. */ |
1010 | if (opt_pipe) { | |
1011 | view->pipe = opt_pipe; | |
1012 | opt_pipe = NULL; | |
1013 | } else { | |
1014 | view->pipe = popen(view->cmd, "r"); | |
1015 | } | |
1016 | ||
2e8488b4 JF |
1017 | if (!view->pipe) |
1018 | return FALSE; | |
b801d8b2 | 1019 | |
6b161b31 | 1020 | set_nonblocking_input(TRUE); |
b801d8b2 JF |
1021 | |
1022 | view->offset = 0; | |
1023 | view->lines = 0; | |
1024 | view->lineno = 0; | |
49f2b43f | 1025 | string_copy(view->vid, id); |
b801d8b2 | 1026 | |
2e8488b4 JF |
1027 | if (view->line) { |
1028 | int i; | |
1029 | ||
1030 | for (i = 0; i < view->lines; i++) | |
1031 | if (view->line[i]) | |
1032 | free(view->line[i]); | |
1033 | ||
1034 | free(view->line); | |
1035 | view->line = NULL; | |
1036 | } | |
1037 | ||
1038 | view->start_time = time(NULL); | |
1039 | ||
b801d8b2 JF |
1040 | return TRUE; |
1041 | } | |
1042 | ||
1043 | static void | |
1044 | end_update(struct view *view) | |
1045 | { | |
03a93dbb JF |
1046 | if (!view->pipe) |
1047 | return; | |
6b161b31 | 1048 | set_nonblocking_input(FALSE); |
80ce96ea JF |
1049 | if (view->pipe == stdin) |
1050 | fclose(view->pipe); | |
1051 | else | |
1052 | pclose(view->pipe); | |
2e8488b4 | 1053 | view->pipe = NULL; |
b801d8b2 JF |
1054 | } |
1055 | ||
03a93dbb | 1056 | static bool |
b801d8b2 JF |
1057 | update_view(struct view *view) |
1058 | { | |
1059 | char buffer[BUFSIZ]; | |
1060 | char *line; | |
22f66b0a | 1061 | void **tmp; |
82e78006 JF |
1062 | /* The number of lines to read. If too low it will cause too much |
1063 | * redrawing (and possible flickering), if too high responsiveness | |
1064 | * will suffer. */ | |
8855ada4 | 1065 | unsigned long lines = view->height; |
82e78006 | 1066 | int redraw_from = -1; |
b801d8b2 JF |
1067 | |
1068 | if (!view->pipe) | |
1069 | return TRUE; | |
1070 | ||
82e78006 JF |
1071 | /* Only redraw if lines are visible. */ |
1072 | if (view->offset + view->height >= view->lines) | |
1073 | redraw_from = view->lines - view->offset; | |
b801d8b2 JF |
1074 | |
1075 | tmp = realloc(view->line, sizeof(*view->line) * (view->lines + lines)); | |
1076 | if (!tmp) | |
1077 | goto alloc_error; | |
1078 | ||
1079 | view->line = tmp; | |
1080 | ||
1081 | while ((line = fgets(buffer, sizeof(buffer), view->pipe))) { | |
1082 | int linelen; | |
1083 | ||
b801d8b2 JF |
1084 | linelen = strlen(line); |
1085 | if (linelen) | |
1086 | line[linelen - 1] = 0; | |
1087 | ||
6b161b31 | 1088 | if (!view->ops->read(view, line)) |
b801d8b2 | 1089 | goto alloc_error; |
fd85fef1 JF |
1090 | |
1091 | if (lines-- == 1) | |
1092 | break; | |
b801d8b2 JF |
1093 | } |
1094 | ||
8855ada4 JF |
1095 | { |
1096 | int digits; | |
1097 | ||
1098 | lines = view->lines; | |
1099 | for (digits = 0; lines; digits++) | |
1100 | lines /= 10; | |
1101 | ||
1102 | /* Keep the displayed view in sync with line number scaling. */ | |
1103 | if (digits != view->digits) { | |
1104 | view->digits = digits; | |
1105 | redraw_from = 0; | |
1106 | } | |
1107 | } | |
1108 | ||
82e78006 JF |
1109 | if (redraw_from >= 0) { |
1110 | /* If this is an incremental update, redraw the previous line | |
a28bcc22 JF |
1111 | * since for commits some members could have changed when |
1112 | * loading the main view. */ | |
82e78006 JF |
1113 | if (redraw_from > 0) |
1114 | redraw_from--; | |
1115 | ||
1116 | /* Incrementally draw avoids flickering. */ | |
1117 | redraw_view_from(view, redraw_from); | |
4c6fabc2 | 1118 | } |
b801d8b2 | 1119 | |
eb98559e JF |
1120 | /* Update the title _after_ the redraw so that if the redraw picks up a |
1121 | * commit reference in view->ref it'll be available here. */ | |
1122 | update_view_title(view); | |
1123 | ||
b801d8b2 | 1124 | if (ferror(view->pipe)) { |
03a93dbb | 1125 | report("Failed to read: %s", strerror(errno)); |
b801d8b2 JF |
1126 | goto end; |
1127 | ||
1128 | } else if (feof(view->pipe)) { | |
2e8488b4 JF |
1129 | time_t secs = time(NULL) - view->start_time; |
1130 | ||
a28bcc22 JF |
1131 | if (view == VIEW(REQ_VIEW_HELP)) { |
1132 | report("%s", HELP); | |
2e8488b4 JF |
1133 | goto end; |
1134 | } | |
1135 | ||
1136 | report("Loaded %d lines in %ld second%s", view->lines, secs, | |
1137 | secs == 1 ? "" : "s"); | |
b801d8b2 JF |
1138 | goto end; |
1139 | } | |
1140 | ||
1141 | return TRUE; | |
1142 | ||
1143 | alloc_error: | |
2e8488b4 | 1144 | report("Allocation failure"); |
b801d8b2 JF |
1145 | |
1146 | end: | |
1147 | end_update(view); | |
1148 | return FALSE; | |
1149 | } | |
1150 | ||
49f2b43f JF |
1151 | enum open_flags { |
1152 | OPEN_DEFAULT = 0, /* Use default view switching. */ | |
1153 | OPEN_SPLIT = 1, /* Split current view. */ | |
1154 | OPEN_BACKGROUNDED = 2, /* Backgrounded. */ | |
1155 | OPEN_RELOAD = 4, /* Reload view even if it is the current. */ | |
1156 | }; | |
1157 | ||
6b161b31 | 1158 | static void |
49f2b43f | 1159 | open_view(struct view *prev, enum request request, enum open_flags flags) |
b801d8b2 | 1160 | { |
49f2b43f JF |
1161 | bool backgrounded = !!(flags & OPEN_BACKGROUNDED); |
1162 | bool split = !!(flags & OPEN_SPLIT); | |
1163 | bool reload = !!(flags & OPEN_RELOAD); | |
a28bcc22 | 1164 | struct view *view = VIEW(request); |
b801d8b2 | 1165 | struct view *displayed; |
6b161b31 JF |
1166 | int nviews; |
1167 | ||
03a93dbb | 1168 | /* Cycle between displayed views and count the views. */ |
6b161b31 | 1169 | foreach_view (displayed, nviews) { |
03a93dbb JF |
1170 | if (prev != view && |
1171 | view == displayed && | |
8855ada4 | 1172 | !strcmp(view->vid, prev->vid)) { |
6b161b31 JF |
1173 | current_view = nviews; |
1174 | /* Blur out the title of the previous view. */ | |
1175 | update_view_title(prev); | |
1176 | report("Switching to %s view", view->name); | |
1177 | return; | |
a28bcc22 | 1178 | } |
6b161b31 | 1179 | } |
b801d8b2 | 1180 | |
49f2b43f | 1181 | if (view == prev && nviews == 1 && !reload) { |
6b161b31 JF |
1182 | report("Already in %s view", view->name); |
1183 | return; | |
1184 | } | |
b801d8b2 | 1185 | |
8855ada4 | 1186 | if ((reload || strcmp(view->vid, view->id)) && |
03a93dbb | 1187 | !begin_update(view)) { |
6b161b31 JF |
1188 | report("Failed to load %s view", view->name); |
1189 | return; | |
1190 | } | |
a28bcc22 | 1191 | |
6b161b31 JF |
1192 | if (split) { |
1193 | display[current_view + 1] = view; | |
1194 | if (!backgrounded) | |
a28bcc22 | 1195 | current_view++; |
6b161b31 JF |
1196 | } else { |
1197 | /* Maximize the current view. */ | |
1198 | memset(display, 0, sizeof(display)); | |
1199 | current_view = 0; | |
1200 | display[current_view] = view; | |
a28bcc22 | 1201 | } |
b801d8b2 | 1202 | |
6b161b31 | 1203 | resize_display(); |
b801d8b2 | 1204 | |
a8891802 | 1205 | if (split && prev->lineno - prev->offset >= prev->height) { |
03a93dbb | 1206 | /* Take the title line into account. */ |
eb98559e | 1207 | int lines = prev->lineno - prev->offset - prev->height + 1; |
03a93dbb JF |
1208 | |
1209 | /* Scroll the view that was split if the current line is | |
1210 | * outside the new limited view. */ | |
1211 | do_scroll_view(prev, lines); | |
1212 | } | |
1213 | ||
6b161b31 JF |
1214 | if (prev && view != prev) { |
1215 | /* "Blur" the previous view. */ | |
1216 | update_view_title(prev); | |
1217 | ||
1218 | /* Continue loading split views in the background. */ | |
03a93dbb | 1219 | if (!split) |
6b161b31 | 1220 | end_update(prev); |
b801d8b2 JF |
1221 | } |
1222 | ||
03a93dbb JF |
1223 | if (view->pipe) { |
1224 | /* Clear the old view and let the incremental updating refill | |
1225 | * the screen. */ | |
1226 | wclear(view->win); | |
1227 | report("Loading..."); | |
1228 | } else { | |
1229 | redraw_view(view); | |
1230 | report(""); | |
1231 | } | |
b801d8b2 JF |
1232 | } |
1233 | ||
1234 | ||
6b161b31 JF |
1235 | /* |
1236 | * User request switch noodle | |
1237 | */ | |
1238 | ||
b801d8b2 | 1239 | static int |
6b161b31 | 1240 | view_driver(struct view *view, enum request request) |
b801d8b2 | 1241 | { |
b801d8b2 JF |
1242 | int i; |
1243 | ||
1244 | switch (request) { | |
4a2909a7 JF |
1245 | case REQ_MOVE_UP: |
1246 | case REQ_MOVE_DOWN: | |
1247 | case REQ_MOVE_PAGE_UP: | |
1248 | case REQ_MOVE_PAGE_DOWN: | |
1249 | case REQ_MOVE_FIRST_LINE: | |
1250 | case REQ_MOVE_LAST_LINE: | |
a28bcc22 | 1251 | move_view(view, request); |
fd85fef1 JF |
1252 | break; |
1253 | ||
4a2909a7 JF |
1254 | case REQ_SCROLL_LINE_DOWN: |
1255 | case REQ_SCROLL_LINE_UP: | |
1256 | case REQ_SCROLL_PAGE_DOWN: | |
1257 | case REQ_SCROLL_PAGE_UP: | |
a28bcc22 | 1258 | scroll_view(view, request); |
b801d8b2 JF |
1259 | break; |
1260 | ||
4a2909a7 | 1261 | case REQ_VIEW_MAIN: |
4a2909a7 | 1262 | case REQ_VIEW_DIFF: |
2e8488b4 JF |
1263 | case REQ_VIEW_LOG: |
1264 | case REQ_VIEW_HELP: | |
6908bdbd | 1265 | case REQ_VIEW_PAGER: |
49f2b43f | 1266 | open_view(view, request, OPEN_DEFAULT); |
b801d8b2 JF |
1267 | break; |
1268 | ||
6b161b31 | 1269 | case REQ_ENTER: |
6908bdbd JF |
1270 | if (!view->lines) { |
1271 | report("Nothing to enter"); | |
1272 | break; | |
1273 | } | |
6b161b31 JF |
1274 | return view->ops->enter(view); |
1275 | ||
03a93dbb JF |
1276 | case REQ_VIEW_NEXT: |
1277 | { | |
1278 | int nviews = display[1] ? 2 : 1; | |
1279 | int next_view = (current_view + 1) % nviews; | |
1280 | ||
1281 | if (next_view == current_view) { | |
1282 | report("Only one view is displayed"); | |
1283 | break; | |
1284 | } | |
1285 | ||
1286 | current_view = next_view; | |
1287 | /* Blur out the title of the previous view. */ | |
1288 | update_view_title(view); | |
1289 | report("Switching to %s view", display[current_view]->name); | |
1290 | break; | |
1291 | } | |
4a2909a7 | 1292 | case REQ_TOGGLE_LINE_NUMBERS: |
b76c2afc | 1293 | opt_line_number = !opt_line_number; |
a28bcc22 | 1294 | redraw_view(view); |
b801d8b2 JF |
1295 | break; |
1296 | ||
03a93dbb | 1297 | case REQ_PROMPT: |
8855ada4 | 1298 | /* Always reload^Wrerun commands from the prompt. */ |
49f2b43f | 1299 | open_view(view, opt_request, OPEN_RELOAD); |
03a93dbb JF |
1300 | break; |
1301 | ||
4a2909a7 | 1302 | case REQ_STOP_LOADING: |
03a93dbb | 1303 | foreach_view (view, i) { |
2e8488b4 | 1304 | if (view->pipe) |
03a93dbb JF |
1305 | report("Stopped loaded of %s view", view->name), |
1306 | end_update(view); | |
1307 | } | |
b801d8b2 JF |
1308 | break; |
1309 | ||
4a2909a7 | 1310 | case REQ_SHOW_VERSION: |
2e8488b4 | 1311 | report("Version: %s", VERSION); |
b801d8b2 JF |
1312 | return TRUE; |
1313 | ||
fac7db6c JF |
1314 | case REQ_SCREEN_RESIZE: |
1315 | resize_display(); | |
1316 | /* Fall-through */ | |
4a2909a7 | 1317 | case REQ_SCREEN_REDRAW: |
eb98559e JF |
1318 | foreach_view (view, i) { |
1319 | redraw_view(view); | |
1320 | update_view_title(view); | |
1321 | } | |
4a2909a7 JF |
1322 | break; |
1323 | ||
1324 | case REQ_SCREEN_UPDATE: | |
b801d8b2 JF |
1325 | doupdate(); |
1326 | return TRUE; | |
1327 | ||
1328 | case REQ_QUIT: | |
1329 | return FALSE; | |
1330 | ||
1331 | default: | |
2e8488b4 | 1332 | /* An unknown key will show most commonly used commands. */ |
a28bcc22 | 1333 | report("%s", HELP); |
b801d8b2 JF |
1334 | return TRUE; |
1335 | } | |
1336 | ||
1337 | return TRUE; | |
1338 | } | |
1339 | ||
1340 | ||
1341 | /* | |
6b161b31 | 1342 | * View backend handlers |
b801d8b2 JF |
1343 | */ |
1344 | ||
6b161b31 | 1345 | static bool |
22f66b0a | 1346 | pager_draw(struct view *view, unsigned int lineno) |
b801d8b2 | 1347 | { |
78c70acd | 1348 | enum line_type type; |
b801d8b2 | 1349 | char *line; |
4c6fabc2 | 1350 | int linelen; |
78c70acd | 1351 | int attr; |
b801d8b2 | 1352 | |
fd85fef1 JF |
1353 | if (view->offset + lineno >= view->lines) |
1354 | return FALSE; | |
1355 | ||
b801d8b2 | 1356 | line = view->line[view->offset + lineno]; |
78c70acd | 1357 | type = get_line_type(line); |
b801d8b2 | 1358 | |
fd85fef1 | 1359 | if (view->offset + lineno == view->lineno) { |
8855ada4 | 1360 | if (type == LINE_COMMIT) { |
03a93dbb JF |
1361 | string_copy(view->ref, line + 7); |
1362 | string_copy(ref_commit, view->ref); | |
1363 | } | |
8855ada4 | 1364 | |
78c70acd | 1365 | type = LINE_CURSOR; |
fd85fef1 JF |
1366 | } |
1367 | ||
78c70acd | 1368 | attr = get_line_attr(type); |
b801d8b2 | 1369 | wattrset(view->win, attr); |
b76c2afc | 1370 | |
4c6fabc2 JF |
1371 | linelen = strlen(line); |
1372 | linelen = MIN(linelen, view->width); | |
1373 | ||
b76c2afc | 1374 | if (opt_line_number) { |
8855ada4 JF |
1375 | static char indent[] = " "; |
1376 | unsigned long real_lineno = view->offset + lineno + 1; | |
a28bcc22 | 1377 | int col = 0; |
82e78006 | 1378 | |
2e8488b4 | 1379 | if (real_lineno == 1 || (real_lineno % opt_num_interval) == 0) |
8855ada4 JF |
1380 | mvwprintw(view->win, lineno, 0, "%.*d", view->digits, real_lineno); |
1381 | ||
1382 | else if (view->digits < sizeof(indent)) | |
1383 | mvwaddnstr(view->win, lineno, 0, indent, view->digits); | |
1384 | ||
1385 | waddstr(view->win, ": "); | |
4c6fabc2 | 1386 | |
b76c2afc JF |
1387 | while (line) { |
1388 | if (*line == '\t') { | |
82e78006 JF |
1389 | waddnstr(view->win, " ", 8 - (col % 8)); |
1390 | col += 8 - (col % 8); | |
b76c2afc | 1391 | line++; |
82e78006 | 1392 | |
b76c2afc JF |
1393 | } else { |
1394 | char *tab = strchr(line, '\t'); | |
1395 | ||
1396 | if (tab) | |
1397 | waddnstr(view->win, line, tab - line); | |
1398 | else | |
1399 | waddstr(view->win, line); | |
82e78006 | 1400 | col += tab - line; |
b76c2afc JF |
1401 | line = tab; |
1402 | } | |
1403 | } | |
1404 | waddstr(view->win, line); | |
1405 | ||
1406 | } else { | |
2e8488b4 JF |
1407 | #if 0 |
1408 | /* NOTE: Code for only highlighting the text on the cursor line. | |
1409 | * Kept since I've not yet decided whether to highlight the | |
1410 | * entire line or not. --fonseca */ | |
b76c2afc JF |
1411 | /* No empty lines makes cursor drawing and clearing implicit. */ |
1412 | if (!*line) | |
4c6fabc2 | 1413 | line = " ", linelen = 1; |
2e8488b4 | 1414 | #endif |
4c6fabc2 | 1415 | mvwaddnstr(view->win, lineno, 0, line, linelen); |
b76c2afc | 1416 | } |
b801d8b2 | 1417 | |
2e8488b4 JF |
1418 | /* Paint the rest of the line if it's the cursor line. */ |
1419 | if (type == LINE_CURSOR) | |
1420 | wchgat(view->win, -1, 0, type, NULL); | |
1421 | ||
b801d8b2 JF |
1422 | return TRUE; |
1423 | } | |
1424 | ||
6b161b31 | 1425 | static bool |
22f66b0a JF |
1426 | pager_read(struct view *view, char *line) |
1427 | { | |
1428 | view->line[view->lines] = strdup(line); | |
1429 | if (!view->line[view->lines]) | |
1430 | return FALSE; | |
1431 | ||
1432 | view->lines++; | |
1433 | return TRUE; | |
1434 | } | |
1435 | ||
6b161b31 JF |
1436 | static bool |
1437 | pager_enter(struct view *view) | |
1438 | { | |
1439 | char *line = view->line[view->lineno]; | |
1440 | ||
1441 | if (get_line_type(line) == LINE_COMMIT) { | |
49f2b43f | 1442 | open_view(view, REQ_VIEW_DIFF, OPEN_DEFAULT); |
6b161b31 JF |
1443 | } |
1444 | ||
1445 | return TRUE; | |
1446 | } | |
1447 | ||
6b161b31 JF |
1448 | static struct view_ops pager_ops = { |
1449 | pager_draw, | |
1450 | pager_read, | |
1451 | pager_enter, | |
1452 | }; | |
1453 | ||
80ce96ea | 1454 | |
6b161b31 | 1455 | static bool |
22f66b0a JF |
1456 | main_draw(struct view *view, unsigned int lineno) |
1457 | { | |
2e8488b4 | 1458 | char buf[DATE_COLS + 1]; |
22f66b0a | 1459 | struct commit *commit; |
78c70acd | 1460 | enum line_type type; |
b76c2afc JF |
1461 | int cols = 0; |
1462 | size_t timelen; | |
22f66b0a JF |
1463 | |
1464 | if (view->offset + lineno >= view->lines) | |
1465 | return FALSE; | |
1466 | ||
1467 | commit = view->line[view->offset + lineno]; | |
4c6fabc2 JF |
1468 | if (!*commit->author) |
1469 | return FALSE; | |
22f66b0a | 1470 | |
22f66b0a | 1471 | if (view->offset + lineno == view->lineno) { |
03a93dbb | 1472 | string_copy(view->ref, commit->id); |
49f2b43f | 1473 | string_copy(ref_commit, view->ref); |
78c70acd JF |
1474 | type = LINE_CURSOR; |
1475 | } else { | |
b76c2afc JF |
1476 | type = LINE_MAIN_COMMIT; |
1477 | } | |
1478 | ||
1479 | wmove(view->win, lineno, cols); | |
1480 | wattrset(view->win, get_line_attr(LINE_MAIN_DATE)); | |
1481 | ||
4c6fabc2 | 1482 | timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time); |
b76c2afc | 1483 | waddnstr(view->win, buf, timelen); |
4c6fabc2 | 1484 | waddstr(view->win, " "); |
b76c2afc | 1485 | |
4c6fabc2 | 1486 | cols += DATE_COLS; |
b76c2afc JF |
1487 | wmove(view->win, lineno, cols); |
1488 | wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR)); | |
1489 | ||
1490 | if (strlen(commit->author) > 19) { | |
1491 | waddnstr(view->win, commit->author, 18); | |
1492 | wattrset(view->win, get_line_attr(LINE_MAIN_DELIM)); | |
1493 | waddch(view->win, '~'); | |
1494 | } else { | |
1495 | waddstr(view->win, commit->author); | |
22f66b0a JF |
1496 | } |
1497 | ||
b76c2afc JF |
1498 | cols += 20; |
1499 | wattrset(view->win, A_NORMAL); | |
1500 | mvwaddch(view->win, lineno, cols, ACS_LTEE); | |
78c70acd | 1501 | wattrset(view->win, get_line_attr(type)); |
b76c2afc | 1502 | mvwaddstr(view->win, lineno, cols + 2, commit->title); |
22f66b0a JF |
1503 | wattrset(view->win, A_NORMAL); |
1504 | ||
1505 | return TRUE; | |
1506 | } | |
1507 | ||
4c6fabc2 | 1508 | /* Reads git log --pretty=raw output and parses it into the commit struct. */ |
6b161b31 | 1509 | static bool |
22f66b0a JF |
1510 | main_read(struct view *view, char *line) |
1511 | { | |
78c70acd JF |
1512 | enum line_type type = get_line_type(line); |
1513 | struct commit *commit; | |
22f66b0a | 1514 | |
78c70acd JF |
1515 | switch (type) { |
1516 | case LINE_COMMIT: | |
22f66b0a JF |
1517 | commit = calloc(1, sizeof(struct commit)); |
1518 | if (!commit) | |
1519 | return FALSE; | |
1520 | ||
4c6fabc2 | 1521 | line += STRING_SIZE("commit "); |
b76c2afc | 1522 | |
22f66b0a | 1523 | view->line[view->lines++] = commit; |
82e78006 | 1524 | string_copy(commit->id, line); |
78c70acd | 1525 | break; |
22f66b0a | 1526 | |
8855ada4 | 1527 | case LINE_AUTHOR: |
b76c2afc | 1528 | { |
4c6fabc2 | 1529 | char *ident = line + STRING_SIZE("author "); |
b76c2afc JF |
1530 | char *end = strchr(ident, '<'); |
1531 | ||
1532 | if (end) { | |
1533 | for (; end > ident && isspace(end[-1]); end--) ; | |
1534 | *end = 0; | |
1535 | } | |
1536 | ||
1537 | commit = view->line[view->lines - 1]; | |
82e78006 | 1538 | string_copy(commit->author, ident); |
b76c2afc | 1539 | |
4c6fabc2 | 1540 | /* Parse epoch and timezone */ |
b76c2afc JF |
1541 | if (end) { |
1542 | char *secs = strchr(end + 1, '>'); | |
1543 | char *zone; | |
1544 | time_t time; | |
1545 | ||
1546 | if (!secs || secs[1] != ' ') | |
1547 | break; | |
1548 | ||
1549 | secs += 2; | |
1550 | time = (time_t) atol(secs); | |
1551 | zone = strchr(secs, ' '); | |
4c6fabc2 | 1552 | if (zone && strlen(zone) == STRING_SIZE(" +0700")) { |
b76c2afc JF |
1553 | long tz; |
1554 | ||
1555 | zone++; | |
1556 | tz = ('0' - zone[1]) * 60 * 60 * 10; | |
1557 | tz += ('0' - zone[2]) * 60 * 60; | |
1558 | tz += ('0' - zone[3]) * 60; | |
1559 | tz += ('0' - zone[4]) * 60; | |
1560 | ||
1561 | if (zone[0] == '-') | |
1562 | tz = -tz; | |
1563 | ||
1564 | time -= tz; | |
1565 | } | |
1566 | gmtime_r(&time, &commit->time); | |
1567 | } | |
1568 | break; | |
1569 | } | |
78c70acd | 1570 | default: |
2e8488b4 JF |
1571 | /* We should only ever end up here if there has already been a |
1572 | * commit line, however, be safe. */ | |
1573 | if (view->lines == 0) | |
1574 | break; | |
1575 | ||
1576 | /* Fill in the commit title if it has not already been set. */ | |
78c70acd | 1577 | commit = view->line[view->lines - 1]; |
2e8488b4 JF |
1578 | if (commit->title[0]) |
1579 | break; | |
1580 | ||
1581 | /* Require titles to start with a non-space character at the | |
1582 | * offset used by git log. */ | |
eb98559e JF |
1583 | /* FIXME: More gracefull handling of titles; append "..." to |
1584 | * shortened titles, etc. */ | |
2e8488b4 | 1585 | if (strncmp(line, " ", 4) || |
eb98559e | 1586 | isspace(line[4])) |
82e78006 JF |
1587 | break; |
1588 | ||
1589 | string_copy(commit->title, line + 4); | |
22f66b0a JF |
1590 | } |
1591 | ||
1592 | return TRUE; | |
1593 | } | |
1594 | ||
6b161b31 JF |
1595 | static bool |
1596 | main_enter(struct view *view) | |
b801d8b2 | 1597 | { |
49f2b43f | 1598 | open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT | OPEN_BACKGROUNDED); |
6b161b31 | 1599 | return TRUE; |
b801d8b2 JF |
1600 | } |
1601 | ||
6b161b31 JF |
1602 | static struct view_ops main_ops = { |
1603 | main_draw, | |
1604 | main_read, | |
1605 | main_enter, | |
1606 | }; | |
2e8488b4 | 1607 | |
6b161b31 JF |
1608 | /* |
1609 | * Status management | |
1610 | */ | |
2e8488b4 | 1611 | |
8855ada4 JF |
1612 | /* Whether or not the curses interface has been initialized. */ |
1613 | bool cursed = FALSE; | |
1614 | ||
6b161b31 JF |
1615 | /* The status window is used for polling keystrokes. */ |
1616 | static WINDOW *status_win; | |
4a2909a7 | 1617 | |
2e8488b4 | 1618 | /* Update status and title window. */ |
4a2909a7 JF |
1619 | static void |
1620 | report(const char *msg, ...) | |
1621 | { | |
1622 | va_list args; | |
b76c2afc | 1623 | |
2e8488b4 JF |
1624 | /* Update the title window first, so the cursor ends up in the status |
1625 | * window. */ | |
6b161b31 | 1626 | update_view_title(display[current_view]); |
4a2909a7 | 1627 | |
4b76734f JF |
1628 | va_start(args, msg); |
1629 | ||
b801d8b2 JF |
1630 | werase(status_win); |
1631 | wmove(status_win, 0, 0); | |
4b76734f JF |
1632 | if (*msg) |
1633 | vwprintw(status_win, msg, args); | |
b801d8b2 JF |
1634 | wrefresh(status_win); |
1635 | ||
1636 | va_end(args); | |
b801d8b2 JF |
1637 | } |
1638 | ||
6b161b31 JF |
1639 | /* Controls when nodelay should be in effect when polling user input. */ |
1640 | static void | |
1ba2ae4b | 1641 | set_nonblocking_input(bool loading) |
b801d8b2 | 1642 | { |
6b161b31 JF |
1643 | /* The number of loading views. */ |
1644 | static unsigned int nloading; | |
b801d8b2 | 1645 | |
1ba2ae4b JF |
1646 | if ((loading == FALSE && nloading-- == 1) || |
1647 | (loading == TRUE && nloading++ == 0)) | |
1648 | nodelay(status_win, loading); | |
6b161b31 JF |
1649 | } |
1650 | ||
1651 | static void | |
1652 | init_display(void) | |
1653 | { | |
1654 | int x, y; | |
b76c2afc | 1655 | |
6908bdbd JF |
1656 | /* Initialize the curses library */ |
1657 | if (isatty(STDIN_FILENO)) { | |
8855ada4 | 1658 | cursed = !!initscr(); |
6908bdbd JF |
1659 | } else { |
1660 | /* Leave stdin and stdout alone when acting as a pager. */ | |
1661 | FILE *io = fopen("/dev/tty", "r+"); | |
1662 | ||
8855ada4 | 1663 | cursed = !!newterm(NULL, io, io); |
6908bdbd JF |
1664 | } |
1665 | ||
8855ada4 JF |
1666 | if (!cursed) |
1667 | die("Failed to initialize curses"); | |
1668 | ||
2e8488b4 JF |
1669 | nonl(); /* Tell curses not to do NL->CR/NL on output */ |
1670 | cbreak(); /* Take input chars one at a time, no wait for \n */ | |
1671 | noecho(); /* Don't echo input */ | |
b801d8b2 | 1672 | leaveok(stdscr, TRUE); |
b801d8b2 JF |
1673 | |
1674 | if (has_colors()) | |
1675 | init_colors(); | |
1676 | ||
1677 | getmaxyx(stdscr, y, x); | |
1678 | status_win = newwin(1, 0, y - 1, 0); | |
1679 | if (!status_win) | |
1680 | die("Failed to create status window"); | |
1681 | ||
1682 | /* Enable keyboard mapping */ | |
1683 | keypad(status_win, TRUE); | |
78c70acd | 1684 | wbkgdset(status_win, get_line_attr(LINE_STATUS)); |
6b161b31 JF |
1685 | } |
1686 | ||
1687 | /* | |
1688 | * Main | |
1689 | */ | |
1690 | ||
1691 | static void | |
1692 | quit(int sig) | |
1693 | { | |
8855ada4 JF |
1694 | /* XXX: Restore tty modes and let the OS cleanup the rest! */ |
1695 | if (cursed) | |
1696 | endwin(); | |
6b161b31 JF |
1697 | exit(0); |
1698 | } | |
1699 | ||
1700 | static void die(const char *err, ...) | |
1701 | { | |
1702 | va_list args; | |
1703 | ||
1704 | endwin(); | |
1705 | ||
1706 | va_start(args, err); | |
1707 | fputs("tig: ", stderr); | |
1708 | vfprintf(stderr, err, args); | |
1709 | fputs("\n", stderr); | |
1710 | va_end(args); | |
1711 | ||
1712 | exit(1); | |
1713 | } | |
1714 | ||
1715 | int | |
1716 | main(int argc, char *argv[]) | |
1717 | { | |
1ba2ae4b | 1718 | struct view *view; |
6b161b31 | 1719 | enum request request; |
1ba2ae4b | 1720 | size_t i; |
6b161b31 JF |
1721 | |
1722 | signal(SIGINT, quit); | |
1723 | ||
8855ada4 | 1724 | if (!parse_options(argc, argv)) |
6b161b31 JF |
1725 | return 0; |
1726 | ||
1ba2ae4b JF |
1727 | for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++) |
1728 | view->cmd_env = getenv(view->cmd_env); | |
1729 | ||
6b161b31 JF |
1730 | request = opt_request; |
1731 | ||
1732 | init_display(); | |
b801d8b2 JF |
1733 | |
1734 | while (view_driver(display[current_view], request)) { | |
6b161b31 | 1735 | int key; |
b801d8b2 JF |
1736 | int i; |
1737 | ||
6b161b31 JF |
1738 | foreach_view (view, i) |
1739 | update_view(view); | |
b801d8b2 JF |
1740 | |
1741 | /* Refresh, accept single keystroke of input */ | |
6b161b31 JF |
1742 | key = wgetch(status_win); |
1743 | request = get_request(key); | |
03a93dbb | 1744 | |
fac7db6c JF |
1745 | /* Some low-level request handling. This keeps handling of |
1746 | * status_win restricted. */ | |
1747 | switch (request) { | |
1748 | case REQ_PROMPT: | |
6908bdbd JF |
1749 | report(":"); |
1750 | /* Temporarily switch to line-oriented and echoed | |
1751 | * input. */ | |
03a93dbb JF |
1752 | nocbreak(); |
1753 | echo(); | |
49f2b43f JF |
1754 | |
1755 | if (wgetnstr(status_win, opt_cmd + 4, sizeof(opt_cmd) - 4) == OK) { | |
1756 | memcpy(opt_cmd, "git ", 4); | |
1757 | opt_request = REQ_VIEW_PAGER; | |
1758 | } else { | |
1759 | request = ERR; | |
1760 | } | |
1761 | ||
6908bdbd JF |
1762 | noecho(); |
1763 | cbreak(); | |
fac7db6c JF |
1764 | break; |
1765 | ||
1766 | case REQ_SCREEN_RESIZE: | |
1767 | { | |
1768 | int height, width; | |
1769 | ||
1770 | getmaxyx(stdscr, height, width); | |
1771 | ||
1772 | /* Resize the status view and let the view driver take | |
1773 | * care of resizing the displayed views. */ | |
1774 | wresize(status_win, 1, width); | |
1775 | mvwin(status_win, height - 1, 0); | |
1776 | wrefresh(status_win); | |
1777 | break; | |
1778 | } | |
1779 | default: | |
1780 | break; | |
03a93dbb | 1781 | } |
b801d8b2 JF |
1782 | } |
1783 | ||
1784 | quit(0); | |
1785 | ||
1786 | return 0; | |
1787 | } | |
1788 | ||
1789 | /** | |
4c6fabc2 JF |
1790 | * TODO |
1791 | * ---- | |
1792 | * Features that should be explored. | |
1793 | * | |
fac7db6c | 1794 | * - Searching. |
4c6fabc2 JF |
1795 | * |
1796 | * - Locale support. | |
1797 | * | |
b801d8b2 JF |
1798 | * COPYRIGHT |
1799 | * --------- | |
4a2909a7 | 1800 | * Copyright (c) Jonas Fonseca <fonseca@diku.dk>, 2006 |
b801d8b2 JF |
1801 | * |
1802 | * This program is free software; you can redistribute it and/or modify | |
1803 | * it under the terms of the GNU General Public License as published by | |
1804 | * the Free Software Foundation; either version 2 of the License, or | |
1805 | * (at your option) any later version. | |
1806 | * | |
1807 | * SEE ALSO | |
1808 | * -------- | |
4c6fabc2 | 1809 | * [verse] |
b801d8b2 JF |
1810 | * link:http://www.kernel.org/pub/software/scm/git/docs/[git(7)], |
1811 | * link:http://www.kernel.org/pub/software/scm/cogito/docs/[cogito(7)] | |
4c6fabc2 JF |
1812 | * gitk(1): git repository browser written using tcl/tk, |
1813 | * gitview(1): git repository browser written using python/gtk. | |
b801d8b2 | 1814 | **/ |