Commit | Line | Data |
---|---|---|
b801d8b2 JF |
1 | /** |
2 | * TIG(1) | |
3 | * ====== | |
4 | * | |
5 | * NAME | |
6 | * ---- | |
7 | * tig - text-mode interface for git | |
8 | * | |
9 | * SYNOPSIS | |
10 | * -------- | |
11 | * [verse] | |
12 | * tig | |
13 | * tig log [git log options] | |
14 | * tig diff [git diff options] | |
15 | * tig < [git log or git diff output] | |
16 | * | |
17 | * DESCRIPTION | |
18 | * ----------- | |
19 | * Browse changes in a git repository. | |
20 | * | |
21 | * OPTIONS | |
22 | * ------- | |
23 | * | |
24 | * None. | |
25 | * | |
26 | **/ | |
27 | ||
28 | #define DEBUG | |
29 | ||
30 | #ifndef DEBUG | |
31 | #define NDEBUG | |
32 | #endif | |
33 | ||
22f66b0a JF |
34 | #include <assert.h> |
35 | #include <ctype.h> | |
36 | #include <signal.h> | |
b801d8b2 | 37 | #include <stdarg.h> |
b801d8b2 | 38 | #include <stdio.h> |
22f66b0a | 39 | #include <stdlib.h> |
b801d8b2 | 40 | #include <string.h> |
b801d8b2 JF |
41 | |
42 | #include <curses.h> | |
43 | #include <form.h> | |
44 | ||
45 | static void die(const char *err, ...); | |
46 | static void report(const char *msg, ...); | |
47 | ||
48 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) | |
49 | ||
b801d8b2 | 50 | #define KEY_TAB 9 |
fd85fef1 JF |
51 | #define KEY_ESC 27 |
52 | #define KEY_DEL 127 | |
b801d8b2 JF |
53 | |
54 | #define REQ_OFFSET (MAX_COMMAND + 1) | |
55 | ||
56 | /* Requests for switching between the different views. */ | |
57 | #define REQ_DIFF (REQ_OFFSET + 0) | |
58 | #define REQ_LOG (REQ_OFFSET + 1) | |
59 | #define REQ_MAIN (REQ_OFFSET + 2) | |
22f66b0a | 60 | #define REQ_VIEWS (REQ_OFFSET + 3) |
b801d8b2 JF |
61 | |
62 | #define REQ_QUIT (REQ_OFFSET + 11) | |
63 | #define REQ_VERSION (REQ_OFFSET + 12) | |
64 | #define REQ_STOP (REQ_OFFSET + 13) | |
65 | #define REQ_UPDATE (REQ_OFFSET + 14) | |
66 | #define REQ_REDRAW (REQ_OFFSET + 15) | |
fd85fef1 JF |
67 | #define REQ_FIRST_LINE (REQ_OFFSET + 16) |
68 | #define REQ_LAST_LINE (REQ_OFFSET + 17) | |
b801d8b2 | 69 | |
fd85fef1 | 70 | #define COLOR_CURSOR 42 |
b801d8b2 JF |
71 | |
72 | /** | |
73 | * KEYS | |
74 | * ---- | |
75 | * | |
76 | * d:: | |
77 | * diff | |
78 | * l:: | |
79 | * log | |
80 | * q:: | |
81 | * quit | |
82 | * r:: | |
83 | * redraw screen | |
84 | * s:: | |
85 | * stop all background loading | |
86 | * j:: | |
87 | * down | |
88 | * k:: | |
89 | * up | |
90 | * h, ?:: | |
91 | * help | |
92 | * v:: | |
93 | * version | |
94 | * | |
95 | **/ | |
96 | ||
97 | #define HELP "(d)iff, (l)og, (m)ain, (q)uit, (v)ersion, (h)elp" | |
98 | ||
99 | struct keymap { | |
100 | int alias; | |
101 | int request; | |
102 | }; | |
103 | ||
104 | struct keymap keymap[] = { | |
fd85fef1 | 105 | /* Cursor navigation */ |
b801d8b2 JF |
106 | { KEY_UP, REQ_PREV_LINE }, |
107 | { 'k', REQ_PREV_LINE }, | |
108 | { KEY_DOWN, REQ_NEXT_LINE }, | |
109 | { 'j', REQ_NEXT_LINE }, | |
fd85fef1 JF |
110 | { KEY_HOME, REQ_FIRST_LINE }, |
111 | { KEY_END, REQ_LAST_LINE }, | |
112 | ||
113 | /* Scrolling */ | |
114 | { KEY_IC, REQ_SCR_BLINE }, /* scroll field backward a line */ | |
115 | { KEY_DC, REQ_SCR_FLINE }, /* scroll field forward a line */ | |
116 | { KEY_NPAGE, REQ_SCR_FPAGE }, /* scroll field forward a page */ | |
117 | { KEY_PPAGE, REQ_SCR_BPAGE }, /* scroll field backward a page */ | |
118 | { 'w', REQ_SCR_FHPAGE }, /* scroll field forward half page */ | |
119 | { 's', REQ_SCR_BHPAGE }, /* scroll field backward half page */ | |
b801d8b2 JF |
120 | |
121 | { 'd', REQ_DIFF }, | |
122 | { 'l', REQ_LOG }, | |
123 | { 'm', REQ_MAIN }, | |
124 | ||
125 | /* No input from wgetch() with nodelay() enabled. */ | |
126 | { ERR, REQ_UPDATE }, | |
127 | ||
128 | { KEY_ESC, REQ_QUIT }, | |
129 | { 'q', REQ_QUIT }, | |
130 | { 's', REQ_STOP }, | |
131 | { 'v', REQ_VERSION }, | |
132 | { 'r', REQ_REDRAW }, | |
133 | }; | |
134 | ||
135 | static int | |
136 | get_request(int request) | |
137 | { | |
138 | int i; | |
139 | ||
140 | for (i = 0; i < ARRAY_SIZE(keymap); i++) | |
141 | if (keymap[i].alias == request) | |
142 | return keymap[i].request; | |
143 | ||
144 | return request; | |
145 | } | |
146 | ||
147 | ||
148 | /* | |
149 | * Viewer | |
150 | */ | |
151 | ||
152 | struct view { | |
153 | char *name; | |
154 | char *cmd; | |
fd85fef1 | 155 | char *id; |
b801d8b2 | 156 | |
22f66b0a | 157 | |
b801d8b2 | 158 | /* Rendering */ |
22f66b0a JF |
159 | int (*read)(struct view *, char *); |
160 | int (*draw)(struct view *, unsigned int); | |
161 | size_t objsize; /* Size of objects in the line index */ | |
162 | ||
b801d8b2 | 163 | WINDOW *win; |
fd85fef1 | 164 | int height, width; |
b801d8b2 JF |
165 | |
166 | /* Navigation */ | |
167 | unsigned long offset; /* Offset of the window top */ | |
168 | unsigned long lineno; /* Current line number */ | |
169 | ||
170 | /* Buffering */ | |
171 | unsigned long lines; /* Total number of lines */ | |
22f66b0a | 172 | void **line; /* Line index */ |
b801d8b2 JF |
173 | |
174 | /* Loading */ | |
175 | FILE *pipe; | |
176 | }; | |
177 | ||
22f66b0a JF |
178 | struct commit { |
179 | char id[41]; | |
180 | char title[75]; | |
181 | }; | |
182 | ||
183 | static int pager_draw(struct view *view, unsigned int lineno); | |
184 | static int pager_read(struct view *view, char *line); | |
185 | ||
186 | static int main_draw(struct view *view, unsigned int lineno); | |
187 | static int main_read(struct view *view, char *line); | |
b801d8b2 | 188 | |
fd85fef1 | 189 | #define DIFF_CMD \ |
b801d8b2 JF |
190 | "git log --stat -n1 %s ; echo; " \ |
191 | "git diff --find-copies-harder -B -C %s^ %s" | |
192 | ||
193 | #define LOG_CMD \ | |
194 | "git log --stat -n100 %s" | |
195 | ||
fd85fef1 JF |
196 | #define MAIN_CMD \ |
197 | "git log --stat --pretty=raw %s" | |
198 | ||
b801d8b2 JF |
199 | /* The status window at the bottom. Used for polling keystrokes. */ |
200 | static WINDOW *status_win; | |
201 | ||
fd85fef1 | 202 | #define SIZEOF_ID 1024 |
22f66b0a | 203 | #define SIZEOF_VIEWS (REQ_VIEWS - REQ_OFFSET) |
fd85fef1 JF |
204 | |
205 | char head_id[SIZEOF_ID] = "HEAD"; | |
206 | char commit_id[SIZEOF_ID] = "HEAD"; | |
207 | ||
208 | static unsigned int current_view; | |
209 | static unsigned int nloading; | |
210 | ||
22f66b0a JF |
211 | static struct view views[]; |
212 | static struct view *display[]; | |
213 | ||
b801d8b2 | 214 | static struct view views[] = { |
22f66b0a JF |
215 | { "diff", DIFF_CMD, commit_id, pager_read, pager_draw, sizeof(char) }, |
216 | { "log", LOG_CMD, head_id, pager_read, pager_draw, sizeof(struct commit) }, | |
217 | { "main", MAIN_CMD, head_id, main_read, main_draw }, | |
b801d8b2 JF |
218 | }; |
219 | ||
220 | static struct view *display[ARRAY_SIZE(views)]; | |
b801d8b2 | 221 | |
22f66b0a | 222 | |
b801d8b2 JF |
223 | #define foreach_view(view, i) \ |
224 | for (i = 0; i < sizeof(display) && (view = display[i]); i++) | |
225 | ||
226 | static void | |
227 | redraw_view(struct view *view) | |
228 | { | |
229 | int lineno; | |
b801d8b2 JF |
230 | |
231 | wclear(view->win); | |
232 | wmove(view->win, 0, 0); | |
233 | ||
fd85fef1 | 234 | for (lineno = 0; lineno < view->height; lineno++) { |
22f66b0a | 235 | if (!view->draw(view, lineno)) |
fd85fef1 | 236 | break; |
b801d8b2 JF |
237 | } |
238 | ||
239 | redrawwin(view->win); | |
240 | wrefresh(view->win); | |
241 | } | |
242 | ||
243 | /* FIXME: Fix percentage. */ | |
244 | static void | |
245 | report_position(struct view *view, int all) | |
246 | { | |
247 | report(all ? "line %d of %d (%d%%) viewing from %d" | |
248 | : "line %d of %d", | |
249 | view->lineno + 1, | |
250 | view->lines, | |
251 | view->lines ? view->offset * 100 / view->lines : 0, | |
252 | view->offset); | |
253 | } | |
254 | ||
255 | static void | |
fd85fef1 | 256 | move_view(struct view *view, int lines) |
b801d8b2 | 257 | { |
fd85fef1 JF |
258 | /* The rendering expects the new offset. */ |
259 | view->offset += lines; | |
260 | ||
261 | assert(0 <= view->offset && view->offset < view->lines); | |
262 | assert(lines); | |
b801d8b2 | 263 | |
fd85fef1 | 264 | { |
22f66b0a JF |
265 | int line = lines > 0 ? view->height - lines : 0; |
266 | int end = line + (lines > 0 ? lines : -lines); | |
fd85fef1 JF |
267 | |
268 | wscrl(view->win, lines); | |
269 | ||
22f66b0a JF |
270 | for (; line < end; line++) { |
271 | if (!view->draw(view, line)) | |
fd85fef1 JF |
272 | break; |
273 | } | |
274 | } | |
275 | ||
276 | /* Move current line into the view. */ | |
277 | if (view->lineno < view->offset) { | |
278 | view->lineno = view->offset; | |
22f66b0a | 279 | view->draw(view, 0); |
fd85fef1 JF |
280 | |
281 | } else if (view->lineno >= view->offset + view->height) { | |
282 | view->lineno = view->offset + view->height - 1; | |
22f66b0a | 283 | view->draw(view, view->lineno - view->offset); |
fd85fef1 JF |
284 | } |
285 | ||
286 | assert(view->offset <= view->lineno && view->lineno <= view->lines); | |
287 | ||
288 | redrawwin(view->win); | |
289 | wrefresh(view->win); | |
290 | ||
291 | report_position(view, lines); | |
292 | } | |
293 | static void | |
294 | scroll_view(struct view *view, int request) | |
295 | { | |
296 | int lines = 1; | |
b801d8b2 JF |
297 | |
298 | switch (request) { | |
fd85fef1 JF |
299 | case REQ_SCR_FPAGE: |
300 | lines = view->height; | |
301 | case REQ_SCR_FLINE: | |
b801d8b2 | 302 | if (view->offset + lines > view->lines) |
bde3653a | 303 | lines = view->lines - view->offset; |
b801d8b2 | 304 | |
fd85fef1 | 305 | if (lines == 0 || view->offset + view->height >= view->lines) { |
b801d8b2 JF |
306 | report("already at last line"); |
307 | return; | |
308 | } | |
309 | break; | |
310 | ||
fd85fef1 JF |
311 | case REQ_SCR_BPAGE: |
312 | lines = view->height; | |
313 | case REQ_SCR_BLINE: | |
b801d8b2 JF |
314 | if (lines > view->offset) |
315 | lines = view->offset; | |
316 | ||
317 | if (lines == 0) { | |
318 | report("already at first line"); | |
319 | return; | |
320 | } | |
321 | ||
fd85fef1 | 322 | lines = -lines; |
b801d8b2 | 323 | break; |
b801d8b2 JF |
324 | } |
325 | ||
fd85fef1 JF |
326 | move_view(view, lines); |
327 | } | |
b801d8b2 | 328 | |
b801d8b2 | 329 | |
fd85fef1 JF |
330 | static void |
331 | navigate_view(struct view *view, int request) | |
332 | { | |
333 | int steps; | |
b801d8b2 | 334 | |
fd85fef1 JF |
335 | switch (request) { |
336 | case REQ_PREV_LINE: | |
337 | if (view->lineno == 0) { | |
338 | report("already at first line"); | |
339 | return; | |
340 | } | |
341 | steps = -1; | |
342 | break; | |
b801d8b2 | 343 | |
fd85fef1 JF |
344 | case REQ_NEXT_LINE: |
345 | if (view->lineno + 1 >= view->lines) { | |
346 | report("already at last line"); | |
347 | return; | |
348 | } | |
349 | steps = 1; | |
350 | break; | |
b801d8b2 | 351 | |
fd85fef1 JF |
352 | case REQ_FIRST_LINE: |
353 | steps = -view->lineno; | |
354 | break; | |
b801d8b2 | 355 | |
fd85fef1 JF |
356 | case REQ_LAST_LINE: |
357 | steps = view->lines - view->lineno - 1; | |
358 | } | |
359 | ||
360 | view->lineno += steps; | |
22f66b0a | 361 | view->draw(view, view->lineno - steps - view->offset); |
fd85fef1 JF |
362 | |
363 | if (view->lineno < view->offset || | |
364 | view->lineno >= view->offset + view->height) { | |
365 | if (steps < 0 && -steps > view->offset) { | |
366 | steps = -view->offset; | |
b801d8b2 | 367 | } |
fd85fef1 JF |
368 | move_view(view, steps); |
369 | return; | |
b801d8b2 JF |
370 | } |
371 | ||
22f66b0a | 372 | view->draw(view, view->lineno - view->offset); |
fd85fef1 | 373 | |
b801d8b2 JF |
374 | redrawwin(view->win); |
375 | wrefresh(view->win); | |
376 | ||
fd85fef1 | 377 | report_position(view, view->height); |
b801d8b2 JF |
378 | } |
379 | ||
380 | static void | |
381 | resize_view(struct view *view) | |
382 | { | |
383 | int lines, cols; | |
384 | ||
385 | getmaxyx(stdscr, lines, cols); | |
386 | ||
387 | if (view->win) { | |
388 | mvwin(view->win, 0, 0); | |
389 | wresize(view->win, lines - 1, cols); | |
390 | ||
391 | } else { | |
392 | view->win = newwin(lines - 1, 0, 0, 0); | |
393 | if (!view->win) { | |
fd85fef1 | 394 | report("failed to create %s view", view->name); |
b801d8b2 JF |
395 | return; |
396 | } | |
397 | scrollok(view->win, TRUE); | |
398 | } | |
fd85fef1 JF |
399 | |
400 | getmaxyx(view->win, view->height, view->width); | |
b801d8b2 JF |
401 | } |
402 | ||
403 | ||
404 | static bool | |
405 | begin_update(struct view *view) | |
406 | { | |
407 | char buf[1024]; | |
408 | ||
409 | if (view->cmd) { | |
fd85fef1 JF |
410 | char *id = view->id; |
411 | ||
412 | if (snprintf(buf, sizeof(buf), view->cmd, id, id, id) < sizeof(buf)) | |
b801d8b2 JF |
413 | view->pipe = popen(buf, "r"); |
414 | ||
415 | if (!view->pipe) | |
416 | return FALSE; | |
417 | ||
418 | if (nloading++ == 0) | |
419 | nodelay(status_win, TRUE); | |
420 | } | |
421 | ||
422 | display[current_view] = view; | |
423 | ||
424 | view->offset = 0; | |
425 | view->lines = 0; | |
426 | view->lineno = 0; | |
427 | ||
428 | return TRUE; | |
429 | } | |
430 | ||
431 | static void | |
432 | end_update(struct view *view) | |
433 | { | |
434 | wattrset(view->win, A_NORMAL); | |
435 | pclose(view->pipe); | |
436 | view->pipe = NULL; | |
437 | ||
438 | if (nloading-- == 1) | |
439 | nodelay(status_win, FALSE); | |
440 | } | |
441 | ||
442 | static int | |
443 | update_view(struct view *view) | |
444 | { | |
445 | char buffer[BUFSIZ]; | |
446 | char *line; | |
22f66b0a | 447 | void **tmp; |
b801d8b2 | 448 | int redraw; |
fd85fef1 | 449 | int lines = view->height; |
b801d8b2 JF |
450 | |
451 | if (!view->pipe) | |
452 | return TRUE; | |
453 | ||
fd85fef1 | 454 | /* Only redraw after the first reading session. */ |
22f66b0a JF |
455 | /* FIXME: ... and possibly more. */ |
456 | redraw = view->height > view->lines; | |
b801d8b2 JF |
457 | |
458 | tmp = realloc(view->line, sizeof(*view->line) * (view->lines + lines)); | |
459 | if (!tmp) | |
460 | goto alloc_error; | |
461 | ||
462 | view->line = tmp; | |
463 | ||
464 | while ((line = fgets(buffer, sizeof(buffer), view->pipe))) { | |
465 | int linelen; | |
466 | ||
b801d8b2 JF |
467 | linelen = strlen(line); |
468 | if (linelen) | |
469 | line[linelen - 1] = 0; | |
470 | ||
22f66b0a | 471 | if (!view->read(view, line)) |
b801d8b2 | 472 | goto alloc_error; |
fd85fef1 JF |
473 | |
474 | if (lines-- == 1) | |
475 | break; | |
b801d8b2 JF |
476 | } |
477 | ||
478 | if (redraw) | |
479 | redraw_view(view); | |
480 | ||
481 | if (ferror(view->pipe)) { | |
fd85fef1 | 482 | report("failed to read %s", view->cmd); |
b801d8b2 JF |
483 | goto end; |
484 | ||
485 | } else if (feof(view->pipe)) { | |
486 | report_position(view, 0); | |
487 | goto end; | |
488 | } | |
489 | ||
490 | return TRUE; | |
491 | ||
492 | alloc_error: | |
fd85fef1 | 493 | report("allocation failure"); |
b801d8b2 JF |
494 | |
495 | end: | |
496 | end_update(view); | |
497 | return FALSE; | |
498 | } | |
499 | ||
500 | ||
501 | static struct view * | |
502 | switch_view(struct view *prev, int request) | |
503 | { | |
504 | struct view *view = &views[request - REQ_OFFSET]; | |
505 | struct view *displayed; | |
506 | int i; | |
507 | ||
508 | if (view == prev) { | |
509 | foreach_view (displayed, i) ; | |
510 | ||
511 | if (i == 1) | |
fd85fef1 | 512 | report("already in %s view", view->name); |
b801d8b2 JF |
513 | else |
514 | report("FIXME: Maximize"); | |
515 | ||
516 | return view; | |
517 | ||
518 | } else { | |
519 | foreach_view (displayed, i) { | |
520 | if (view == displayed) { | |
521 | current_view = i; | |
fd85fef1 | 522 | report("new current view"); |
b801d8b2 JF |
523 | return view; |
524 | } | |
525 | } | |
526 | } | |
527 | ||
528 | if (!view->win) | |
529 | resize_view(view); | |
530 | ||
531 | /* Reload */ | |
532 | ||
533 | if (view->line) { | |
534 | for (i = 0; i < view->lines; i++) | |
535 | if (view->line[i]) | |
536 | free(view->line[i]); | |
537 | ||
538 | free(view->line); | |
539 | view->line = NULL; | |
540 | } | |
541 | ||
542 | if (prev && prev->pipe) | |
543 | end_update(prev); | |
544 | ||
545 | if (begin_update(view)) { | |
546 | if (!view->cmd) | |
547 | report("%s", HELP); | |
548 | else | |
549 | report("loading..."); | |
550 | } | |
551 | ||
552 | return view; | |
553 | } | |
554 | ||
555 | ||
556 | /* Process a keystroke */ | |
557 | static int | |
558 | view_driver(struct view *view, int key) | |
559 | { | |
560 | int request = get_request(key); | |
561 | int i; | |
562 | ||
563 | switch (request) { | |
564 | case REQ_NEXT_LINE: | |
b801d8b2 | 565 | case REQ_PREV_LINE: |
fd85fef1 JF |
566 | case REQ_FIRST_LINE: |
567 | case REQ_LAST_LINE: | |
568 | if (view) | |
569 | navigate_view(view, request); | |
570 | break; | |
571 | ||
572 | case REQ_SCR_FLINE: | |
573 | case REQ_SCR_BLINE: | |
574 | case REQ_SCR_FPAGE: | |
575 | case REQ_SCR_BPAGE: | |
b801d8b2 JF |
576 | if (view) |
577 | scroll_view(view, request); | |
578 | break; | |
579 | ||
580 | case REQ_MAIN: | |
581 | case REQ_LOG: | |
582 | case REQ_DIFF: | |
583 | view = switch_view(view, request); | |
584 | break; | |
585 | ||
586 | case REQ_REDRAW: | |
587 | redraw_view(view); | |
588 | break; | |
589 | ||
590 | case REQ_STOP: | |
591 | foreach_view (view, i) { | |
592 | if (view->pipe) { | |
593 | end_update(view); | |
594 | scroll_view(view, 0); | |
595 | } | |
596 | } | |
597 | break; | |
598 | ||
599 | case REQ_VERSION: | |
600 | report("version %s", VERSION); | |
601 | return TRUE; | |
602 | ||
603 | case REQ_UPDATE: | |
604 | doupdate(); | |
605 | return TRUE; | |
606 | ||
607 | case REQ_QUIT: | |
608 | return FALSE; | |
609 | ||
610 | default: | |
611 | report(HELP); | |
612 | return TRUE; | |
613 | } | |
614 | ||
615 | return TRUE; | |
616 | } | |
617 | ||
618 | ||
619 | /* | |
620 | * Rendering | |
621 | */ | |
622 | ||
623 | #define ATTR(line, attr) { (line), sizeof(line) - 1, (attr) } | |
624 | ||
625 | struct attr { | |
626 | char *line; | |
627 | int linelen; | |
628 | int attr; | |
629 | }; | |
630 | ||
631 | static struct attr attrs[] = { | |
632 | ATTR("commit ", COLOR_PAIR(COLOR_GREEN)), | |
633 | ATTR("Author: ", COLOR_PAIR(COLOR_CYAN)), | |
634 | ATTR("Date: ", COLOR_PAIR(COLOR_YELLOW)), | |
635 | ATTR("diff --git ", COLOR_PAIR(COLOR_YELLOW)), | |
636 | ATTR("diff-tree ", COLOR_PAIR(COLOR_BLUE)), | |
637 | ATTR("index ", COLOR_PAIR(COLOR_BLUE)), | |
638 | ATTR("-", COLOR_PAIR(COLOR_RED)), | |
639 | ATTR("+", COLOR_PAIR(COLOR_GREEN)), | |
640 | ATTR("@", COLOR_PAIR(COLOR_MAGENTA)), | |
641 | }; | |
642 | ||
643 | static int | |
22f66b0a | 644 | pager_draw(struct view *view, unsigned int lineno) |
b801d8b2 JF |
645 | { |
646 | char *line; | |
647 | int linelen; | |
648 | int attr = A_NORMAL; | |
649 | int i; | |
650 | ||
fd85fef1 JF |
651 | if (view->offset + lineno >= view->lines) |
652 | return FALSE; | |
653 | ||
b801d8b2 JF |
654 | line = view->line[view->offset + lineno]; |
655 | if (!line) return FALSE; | |
656 | ||
657 | linelen = strlen(line); | |
658 | ||
659 | for (i = 0; i < ARRAY_SIZE(attrs); i++) { | |
660 | if (linelen < attrs[i].linelen | |
661 | || strncmp(attrs[i].line, line, attrs[i].linelen)) | |
662 | continue; | |
663 | ||
664 | attr = attrs[i].attr; | |
665 | break; | |
666 | } | |
667 | ||
fd85fef1 JF |
668 | if (view->offset + lineno == view->lineno) { |
669 | if (i == 0) | |
670 | strncpy(commit_id, line + 7, SIZEOF_ID); | |
671 | attr = COLOR_PAIR(COLOR_CURSOR) | A_BOLD; | |
672 | } | |
673 | ||
b801d8b2 | 674 | wattrset(view->win, attr); |
fd85fef1 JF |
675 | //mvwprintw(view->win, lineno, 0, "%4d: %s", view->offset + lineno, line); |
676 | mvwaddstr(view->win, lineno, 0, line); | |
b801d8b2 JF |
677 | |
678 | return TRUE; | |
679 | } | |
680 | ||
22f66b0a JF |
681 | static int |
682 | pager_read(struct view *view, char *line) | |
683 | { | |
684 | view->line[view->lines] = strdup(line); | |
685 | if (!view->line[view->lines]) | |
686 | return FALSE; | |
687 | ||
688 | view->lines++; | |
689 | return TRUE; | |
690 | } | |
691 | ||
692 | static int | |
693 | main_draw(struct view *view, unsigned int lineno) | |
694 | { | |
695 | struct commit *commit; | |
696 | int attr = A_NORMAL; | |
697 | ||
698 | if (view->offset + lineno >= view->lines) | |
699 | return FALSE; | |
700 | ||
701 | commit = view->line[view->offset + lineno]; | |
702 | if (!commit) return FALSE; | |
703 | ||
704 | attr = attrs[0].attr; | |
705 | ||
706 | if (view->offset + lineno == view->lineno) { | |
707 | strncpy(commit_id, commit->id, SIZEOF_ID); | |
708 | attr = COLOR_PAIR(COLOR_CURSOR) | A_BOLD; | |
709 | } | |
710 | ||
711 | mvwaddch(view->win, lineno, 0, ACS_LTEE); | |
712 | wattrset(view->win, attr); | |
713 | mvwaddstr(view->win, lineno, 2, commit->title); | |
714 | wattrset(view->win, A_NORMAL); | |
715 | ||
716 | return TRUE; | |
717 | } | |
718 | ||
719 | static int | |
720 | main_read(struct view *view, char *line) | |
721 | { | |
722 | int linelen = strlen(line); | |
723 | int i; | |
724 | ||
725 | for (i = 0; i < ARRAY_SIZE(attrs); i++) { | |
726 | if (linelen < attrs[i].linelen | |
727 | || strncmp(attrs[i].line, line, attrs[i].linelen)) | |
728 | continue; | |
729 | break; | |
730 | } | |
731 | ||
732 | if (i == 0) { | |
733 | struct commit *commit; | |
734 | ||
735 | commit = calloc(1, sizeof(struct commit)); | |
736 | if (!commit) | |
737 | return FALSE; | |
738 | ||
739 | view->line[view->lines++] = commit; | |
740 | ||
741 | strncpy(commit->id, line + 7, 41); | |
742 | ||
743 | } else { | |
744 | struct commit *commit = view->line[view->lines - 1]; | |
745 | ||
746 | if (!commit->title[0] && | |
747 | linelen > 5 && | |
748 | !strncmp(line, " ", 4) && | |
749 | !isspace(line[5])) | |
750 | strncpy(commit->title, line + 4, sizeof(commit->title)); | |
751 | } | |
752 | ||
753 | return TRUE; | |
754 | } | |
755 | ||
756 | ||
b801d8b2 JF |
757 | /* |
758 | * Main | |
759 | */ | |
760 | ||
761 | static void | |
762 | quit(int sig) | |
763 | { | |
764 | if (status_win) | |
765 | delwin(status_win); | |
766 | endwin(); | |
767 | ||
768 | /* FIXME: Shutdown gracefully. */ | |
769 | ||
770 | exit(0); | |
771 | } | |
772 | ||
773 | static void die(const char *err, ...) | |
774 | { | |
775 | va_list args; | |
776 | ||
777 | endwin(); | |
778 | ||
779 | va_start(args, err); | |
780 | fputs("tig: ", stderr); | |
781 | vfprintf(stderr, err, args); | |
782 | fputs("\n", stderr); | |
783 | va_end(args); | |
784 | ||
785 | exit(1); | |
786 | } | |
787 | ||
788 | static void | |
789 | report(const char *msg, ...) | |
790 | { | |
791 | va_list args; | |
792 | ||
793 | va_start(args, msg); | |
794 | ||
795 | werase(status_win); | |
796 | wmove(status_win, 0, 0); | |
797 | ||
fd85fef1 | 798 | #if 0 |
b801d8b2 | 799 | if (display[current_view]) |
fd85fef1 JF |
800 | wprintw(status_win, "%s %4s: ", commit_id, display[current_view]->name); |
801 | #endif | |
b801d8b2 JF |
802 | vwprintw(status_win, msg, args); |
803 | wrefresh(status_win); | |
804 | ||
805 | va_end(args); | |
806 | } | |
807 | ||
808 | static void | |
809 | init_colors(void) | |
810 | { | |
811 | int bg = COLOR_BLACK; | |
812 | ||
813 | start_color(); | |
814 | ||
815 | if (use_default_colors() != ERR) | |
816 | bg = -1; | |
817 | ||
818 | init_pair(COLOR_BLACK, COLOR_BLACK, bg); | |
819 | init_pair(COLOR_GREEN, COLOR_GREEN, bg); | |
820 | init_pair(COLOR_RED, COLOR_RED, bg); | |
821 | init_pair(COLOR_CYAN, COLOR_CYAN, bg); | |
822 | init_pair(COLOR_WHITE, COLOR_WHITE, bg); | |
823 | init_pair(COLOR_MAGENTA, COLOR_MAGENTA, bg); | |
824 | init_pair(COLOR_BLUE, COLOR_BLUE, bg); | |
825 | init_pair(COLOR_YELLOW, COLOR_YELLOW, bg); | |
fd85fef1 | 826 | init_pair(COLOR_CURSOR, COLOR_WHITE, COLOR_GREEN); |
b801d8b2 JF |
827 | } |
828 | ||
829 | int | |
830 | main(int argc, char *argv[]) | |
831 | { | |
832 | int request = REQ_MAIN; | |
833 | int x, y; | |
834 | ||
835 | signal(SIGINT, quit); | |
836 | ||
837 | initscr(); /* initialize the curses library */ | |
838 | nonl(); /* tell curses not to do NL->CR/NL on output */ | |
839 | cbreak(); /* take input chars one at a time, no wait for \n */ | |
840 | noecho(); /* don't echo input */ | |
841 | leaveok(stdscr, TRUE); | |
842 | /* curs_set(0); */ | |
843 | ||
844 | if (has_colors()) | |
845 | init_colors(); | |
846 | ||
847 | getmaxyx(stdscr, y, x); | |
848 | status_win = newwin(1, 0, y - 1, 0); | |
849 | if (!status_win) | |
850 | die("Failed to create status window"); | |
851 | ||
852 | /* Enable keyboard mapping */ | |
853 | keypad(status_win, TRUE); | |
854 | wattrset(status_win, COLOR_PAIR(COLOR_GREEN)); | |
855 | ||
856 | while (view_driver(display[current_view], request)) { | |
857 | struct view *view; | |
858 | int i; | |
859 | ||
860 | foreach_view (view, i) { | |
861 | if (view->pipe) { | |
862 | update_view(view); | |
863 | } | |
864 | } | |
865 | ||
866 | /* Refresh, accept single keystroke of input */ | |
867 | request = wgetch(status_win); | |
868 | if (request == KEY_RESIZE) { | |
869 | int lines, cols; | |
870 | ||
871 | getmaxyx(stdscr, lines, cols); | |
872 | mvwin(status_win, lines - 1, 0); | |
873 | wresize(status_win, 1, cols - 1); | |
874 | } | |
875 | } | |
876 | ||
877 | quit(0); | |
878 | ||
879 | return 0; | |
880 | } | |
881 | ||
882 | /** | |
883 | * COPYRIGHT | |
884 | * --------- | |
885 | * Copyright (c) Jonas Fonseca, 2006 | |
886 | * | |
887 | * This program is free software; you can redistribute it and/or modify | |
888 | * it under the terms of the GNU General Public License as published by | |
889 | * the Free Software Foundation; either version 2 of the License, or | |
890 | * (at your option) any later version. | |
891 | * | |
892 | * SEE ALSO | |
893 | * -------- | |
894 | * link:http://www.kernel.org/pub/software/scm/git/docs/[git(7)], | |
895 | * link:http://www.kernel.org/pub/software/scm/cogito/docs/[cogito(7)] | |
896 | **/ |