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] | |
b76c2afc JF |
14 | * tig [options] |
15 | * tig [options] log [git log options] | |
16 | * tig [options] diff [git diff options] | |
4c6fabc2 | 17 | * tig [options] < [git log or git diff output] |
b801d8b2 JF |
18 | * |
19 | * DESCRIPTION | |
20 | * ----------- | |
21 | * Browse changes in a git repository. | |
b801d8b2 JF |
22 | **/ |
23 | ||
b801d8b2 JF |
24 | #ifndef DEBUG |
25 | #define NDEBUG | |
26 | #endif | |
27 | ||
b76c2afc JF |
28 | #ifndef VERSION |
29 | #define VERSION "tig-0.1" | |
30 | #endif | |
31 | ||
22f66b0a | 32 | #include <assert.h> |
4c6fabc2 | 33 | #include <errno.h> |
22f66b0a JF |
34 | #include <ctype.h> |
35 | #include <signal.h> | |
b801d8b2 | 36 | #include <stdarg.h> |
b801d8b2 | 37 | #include <stdio.h> |
22f66b0a | 38 | #include <stdlib.h> |
b801d8b2 | 39 | #include <string.h> |
b76c2afc | 40 | #include <time.h> |
b801d8b2 JF |
41 | |
42 | #include <curses.h> | |
b801d8b2 JF |
43 | |
44 | static void die(const char *err, ...); | |
45 | static void report(const char *msg, ...); | |
4a2909a7 | 46 | static void update_title(void); |
b76c2afc | 47 | |
82e78006 JF |
48 | /* Size of symbolic or SHA1 ID. */ |
49 | #define SIZEOF_REF 256 | |
b801d8b2 | 50 | |
82e78006 JF |
51 | /* This color name can be used to refer to the default term colors. */ |
52 | #define COLOR_DEFAULT (-1) | |
78c70acd | 53 | |
82e78006 | 54 | /* The format and size of the date column in the main view. */ |
4c6fabc2 | 55 | #define DATE_FORMAT "%Y-%m-%d %H:%M" |
4a2909a7 | 56 | #define DATE_COLS (STRING_SIZE("2006-04-29 14:21 ")) |
4c6fabc2 | 57 | |
82e78006 | 58 | /* The interval between line numbers. */ |
4a2909a7 | 59 | #define NUMBER_INTERVAL 1 |
82e78006 | 60 | |
4c6fabc2 JF |
61 | #define ABS(x) ((x) >= 0 ? (x) : -(x)) |
62 | #define MIN(x, y) ((x) < (y) ? (x) : (y)) | |
63 | ||
64 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) | |
65 | #define STRING_SIZE(x) (sizeof(x) - 1) | |
66 | ||
4a2909a7 JF |
67 | /* Some ascii-shorthands that fit into the ncurses namespace. */ |
68 | #define KEY_TAB 9 | |
69 | #define KEY_ESC 27 | |
70 | ||
71 | /* User requests. */ | |
72 | enum request { | |
73 | /* XXX: Keep the view request first and in sync with views[]. */ | |
74 | REQ_VIEW_DIFF, | |
75 | REQ_VIEW_LOG, | |
76 | REQ_VIEW_MAIN, | |
77 | ||
78 | REQ_QUIT, | |
79 | REQ_SHOW_VERSION, | |
80 | REQ_STOP_LOADING, | |
81 | REQ_SCREEN_REDRAW, | |
82 | REQ_SCREEN_UPDATE, | |
83 | REQ_TOGGLE_LINE_NUMBERS, | |
84 | ||
85 | REQ_MOVE_UP, | |
86 | REQ_MOVE_DOWN, | |
87 | REQ_MOVE_PAGE_UP, | |
88 | REQ_MOVE_PAGE_DOWN, | |
89 | REQ_MOVE_FIRST_LINE, | |
90 | REQ_MOVE_LAST_LINE, | |
91 | ||
92 | REQ_SCROLL_LINE_UP, | |
93 | REQ_SCROLL_LINE_DOWN, | |
94 | REQ_SCROLL_PAGE_UP, | |
95 | REQ_SCROLL_PAGE_DOWN, | |
96 | }; | |
97 | ||
4c6fabc2 JF |
98 | struct commit { |
99 | char id[41]; | |
100 | char title[75]; | |
101 | char author[75]; | |
102 | struct tm time; | |
103 | }; | |
104 | ||
78c70acd | 105 | |
82e78006 JF |
106 | static inline void |
107 | string_ncopy(char *dst, char *src, int dstlen) | |
108 | { | |
109 | strncpy(dst, src, dstlen - 1); | |
110 | dst[dstlen - 1] = 0; | |
111 | } | |
112 | ||
113 | /* Shorthand for safely copying into a fixed buffer. */ | |
114 | #define string_copy(dst, src) \ | |
115 | string_ncopy(dst, src, sizeof(dst)) | |
116 | ||
117 | ||
b76c2afc JF |
118 | /** |
119 | * OPTIONS | |
120 | * ------- | |
121 | **/ | |
122 | ||
123 | static int opt_line_number; | |
4a2909a7 | 124 | static int opt_request = REQ_VIEW_MAIN; |
b76c2afc | 125 | |
82e78006 JF |
126 | char head_id[SIZEOF_REF] = "HEAD"; |
127 | char commit_id[SIZEOF_REF] = "HEAD"; | |
b76c2afc | 128 | |
b76c2afc JF |
129 | /* Returns the index of log or diff command or -1 to exit. */ |
130 | static int | |
131 | parse_options(int argc, char *argv[]) | |
132 | { | |
133 | int i; | |
134 | ||
135 | for (i = 1; i < argc; i++) { | |
136 | char *opt = argv[i]; | |
137 | ||
138 | /** | |
139 | * log [options]:: | |
140 | * git log options. | |
141 | **/ | |
142 | if (!strcmp(opt, "log")) { | |
4a2909a7 | 143 | opt_request = REQ_VIEW_LOG; |
b76c2afc JF |
144 | return i; |
145 | ||
146 | /** | |
147 | * diff [options]:: | |
148 | * git diff options. | |
149 | **/ | |
150 | } else if (!strcmp(opt, "diff")) { | |
4a2909a7 | 151 | opt_request = REQ_VIEW_DIFF; |
b76c2afc JF |
152 | return i; |
153 | ||
154 | /** | |
155 | * -l:: | |
156 | * Start up in log view. | |
157 | **/ | |
158 | } else if (!strcmp(opt, "-l")) { | |
4a2909a7 | 159 | opt_request = REQ_VIEW_LOG; |
b76c2afc JF |
160 | |
161 | /** | |
162 | * -d:: | |
163 | * Start up in diff view. | |
164 | **/ | |
165 | } else if (!strcmp(opt, "-d")) { | |
4a2909a7 | 166 | opt_request = REQ_VIEW_DIFF; |
b76c2afc JF |
167 | |
168 | /** | |
169 | * -n, --line-number:: | |
170 | * Prefix line numbers in log and diff view. | |
171 | **/ | |
172 | } else if (!strcmp(opt, "-n") || | |
173 | !strcmp(opt, "--line-number")) { | |
174 | opt_line_number = 1; | |
175 | ||
176 | /** | |
177 | * -v, --version:: | |
178 | * Show version and exit. | |
179 | **/ | |
180 | } else if (!strcmp(opt, "-v") || | |
181 | !strcmp(opt, "--version")) { | |
182 | printf("tig version %s\n", VERSION); | |
183 | return -1; | |
184 | ||
185 | /** | |
186 | * ref:: | |
187 | * Commit reference, symbolic or raw SHA1 ID. | |
188 | **/ | |
189 | } else if (opt[0] && opt[0] != '-') { | |
82e78006 JF |
190 | string_copy(head_id, opt); |
191 | string_copy(commit_id, opt); | |
b76c2afc JF |
192 | |
193 | } else { | |
4c6fabc2 | 194 | die("unknown command '%s'", opt); |
b76c2afc JF |
195 | } |
196 | } | |
197 | ||
198 | return i; | |
199 | } | |
200 | ||
201 | ||
4a2909a7 JF |
202 | /** |
203 | * KEYS | |
204 | * ---- | |
205 | * | |
206 | * d:: | |
207 | * diff | |
208 | * l:: | |
209 | * log | |
210 | * q:: | |
211 | * quit | |
212 | * r:: | |
213 | * redraw screen | |
214 | * s:: | |
215 | * stop all background loading | |
216 | * j:: | |
217 | * down | |
218 | * k:: | |
219 | * up | |
220 | * h, ?:: | |
221 | * help | |
222 | * v:: | |
223 | * version | |
224 | **/ | |
225 | ||
226 | #define HELP "(d)iff, (l)og, (m)ain, (q)uit, (v)ersion, (h)elp" | |
227 | ||
228 | struct keymap { | |
229 | int alias; | |
230 | int request; | |
231 | }; | |
232 | ||
233 | struct keymap keymap[] = { | |
234 | /* Cursor navigation */ | |
235 | { KEY_UP, REQ_MOVE_UP }, | |
236 | { 'k', REQ_MOVE_UP }, | |
237 | { KEY_DOWN, REQ_MOVE_DOWN }, | |
238 | { 'j', REQ_MOVE_DOWN }, | |
239 | { KEY_HOME, REQ_MOVE_FIRST_LINE }, | |
240 | { KEY_END, REQ_MOVE_LAST_LINE }, | |
241 | { KEY_NPAGE, REQ_MOVE_PAGE_DOWN }, | |
242 | { KEY_PPAGE, REQ_MOVE_PAGE_UP }, | |
243 | ||
244 | /* Scrolling */ | |
245 | { KEY_IC, REQ_SCROLL_LINE_UP }, /* scroll field backward a line */ | |
246 | { KEY_DC, REQ_SCROLL_LINE_DOWN }, /* scroll field forward a line */ | |
247 | { 's', REQ_SCROLL_PAGE_DOWN }, /* scroll field forward a page */ | |
248 | { 'w', REQ_SCROLL_PAGE_UP }, /* scroll field backward a page */ | |
249 | ||
250 | /* View switching */ | |
251 | { 'd', REQ_VIEW_DIFF }, | |
252 | { 'l', REQ_VIEW_LOG }, | |
253 | { 'm', REQ_VIEW_MAIN }, | |
254 | ||
255 | /* Misc */ | |
256 | { KEY_ESC, REQ_QUIT }, | |
257 | { 'q', REQ_QUIT }, | |
258 | { 'z', REQ_STOP_LOADING }, | |
259 | { 'v', REQ_SHOW_VERSION }, | |
260 | { 'r', REQ_SCREEN_REDRAW }, | |
261 | { 'n', REQ_TOGGLE_LINE_NUMBERS }, | |
262 | ||
263 | /* wgetch() with nodelay() enabled returns ERR when there's no input. */ | |
264 | { ERR, REQ_SCREEN_UPDATE }, | |
265 | }; | |
266 | ||
267 | static int | |
268 | get_request(int request) | |
269 | { | |
270 | int i; | |
271 | ||
272 | for (i = 0; i < ARRAY_SIZE(keymap); i++) | |
273 | if (keymap[i].alias == request) | |
274 | return keymap[i].request; | |
275 | ||
276 | return request; | |
277 | } | |
278 | ||
279 | ||
b76c2afc JF |
280 | /* |
281 | * Line-oriented content detection. | |
282 | */ | |
283 | ||
78c70acd | 284 | enum line_type { |
b76c2afc | 285 | LINE_DEFAULT, |
78c70acd | 286 | LINE_AUTHOR, |
b76c2afc | 287 | LINE_AUTHOR_IDENT, |
78c70acd | 288 | LINE_COMMIT, |
b76c2afc JF |
289 | LINE_COMMITTER, |
290 | LINE_CURSOR, | |
78c70acd JF |
291 | LINE_DATE, |
292 | LINE_DIFF, | |
293 | LINE_DIFF_ADD, | |
78c70acd | 294 | LINE_DIFF_CHUNK, |
b76c2afc JF |
295 | LINE_DIFF_COPY, |
296 | LINE_DIFF_DEL, | |
297 | LINE_DIFF_DISSIM, | |
298 | LINE_DIFF_NEWMODE, | |
299 | LINE_DIFF_OLDMODE, | |
300 | LINE_DIFF_RENAME, | |
301 | LINE_DIFF_SIM, | |
78c70acd JF |
302 | LINE_DIFF_TREE, |
303 | LINE_INDEX, | |
b76c2afc JF |
304 | LINE_MAIN_AUTHOR, |
305 | LINE_MAIN_COMMIT, | |
306 | LINE_MAIN_DATE, | |
307 | LINE_MAIN_DELIM, | |
308 | LINE_MERGE, | |
78c70acd | 309 | LINE_PARENT, |
4c6fabc2 | 310 | LINE_SIGNOFF, |
78c70acd JF |
311 | LINE_STATUS, |
312 | LINE_TITLE, | |
b76c2afc | 313 | LINE_TREE, |
78c70acd JF |
314 | }; |
315 | ||
316 | struct line_info { | |
317 | enum line_type type; | |
318 | char *line; | |
319 | int linelen; | |
320 | ||
321 | int fg; | |
322 | int bg; | |
323 | int attr; | |
324 | }; | |
325 | ||
326 | #define LINE(type, line, fg, bg, attr) \ | |
4c6fabc2 | 327 | { LINE_##type, (line), STRING_SIZE(line), (fg), (bg), (attr) } |
78c70acd JF |
328 | |
329 | static struct line_info line_info[] = { | |
b76c2afc | 330 | /* Diff markup */ |
82e78006 JF |
331 | LINE(DIFF, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), |
332 | LINE(INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), | |
333 | LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), | |
334 | LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), | |
335 | LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), | |
336 | LINE(DIFF_OLDMODE, "old mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), | |
337 | LINE(DIFF_NEWMODE, "new mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), | |
338 | LINE(DIFF_COPY, "copy ", COLOR_YELLOW, COLOR_DEFAULT, 0), | |
339 | LINE(DIFF_RENAME, "rename ", COLOR_YELLOW, COLOR_DEFAULT, 0), | |
340 | LINE(DIFF_SIM, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), | |
341 | LINE(DIFF_DISSIM, "dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), | |
b76c2afc JF |
342 | |
343 | /* Pretty print commit header */ | |
82e78006 JF |
344 | LINE(AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), |
345 | LINE(MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), | |
346 | LINE(DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), | |
b76c2afc JF |
347 | |
348 | /* Raw commit header */ | |
82e78006 JF |
349 | LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), |
350 | LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), | |
351 | LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), | |
352 | LINE(AUTHOR_IDENT, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), | |
353 | LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), | |
b76c2afc | 354 | |
4c6fabc2 | 355 | /* Misc */ |
82e78006 JF |
356 | LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), |
357 | LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), | |
b76c2afc JF |
358 | |
359 | /* UI colors */ | |
82e78006 | 360 | LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), |
b76c2afc | 361 | LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), |
82e78006 | 362 | LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), |
9d3f5834 | 363 | LINE(TITLE, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), |
82e78006 JF |
364 | LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), |
365 | LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), | |
366 | LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), | |
367 | LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), | |
78c70acd JF |
368 | }; |
369 | ||
370 | static struct line_info * | |
371 | get_line_info(char *line) | |
372 | { | |
373 | int linelen = strlen(line); | |
374 | int i; | |
375 | ||
376 | for (i = 0; i < ARRAY_SIZE(line_info); i++) { | |
377 | if (linelen < line_info[i].linelen | |
4c6fabc2 | 378 | || strncasecmp(line_info[i].line, line, line_info[i].linelen)) |
78c70acd JF |
379 | continue; |
380 | ||
381 | return &line_info[i]; | |
382 | } | |
383 | ||
384 | return NULL; | |
385 | } | |
386 | ||
387 | static enum line_type | |
388 | get_line_type(char *line) | |
389 | { | |
390 | struct line_info *info = get_line_info(line); | |
391 | ||
b76c2afc | 392 | return info ? info->type : LINE_DEFAULT; |
78c70acd JF |
393 | } |
394 | ||
395 | static int | |
396 | get_line_attr(enum line_type type) | |
397 | { | |
398 | int i; | |
399 | ||
400 | for (i = 0; i < ARRAY_SIZE(line_info); i++) | |
401 | if (line_info[i].type == type) | |
402 | return COLOR_PAIR(line_info[i].type) | line_info[i].attr; | |
403 | ||
404 | return A_NORMAL; | |
405 | } | |
406 | ||
407 | static void | |
408 | init_colors(void) | |
409 | { | |
82e78006 JF |
410 | int default_bg = COLOR_BLACK; |
411 | int default_fg = COLOR_WHITE; | |
78c70acd JF |
412 | int i; |
413 | ||
414 | start_color(); | |
415 | ||
416 | if (use_default_colors() != ERR) { | |
82e78006 JF |
417 | default_bg = -1; |
418 | default_fg = -1; | |
78c70acd JF |
419 | } |
420 | ||
421 | for (i = 0; i < ARRAY_SIZE(line_info); i++) { | |
422 | struct line_info *info = &line_info[i]; | |
82e78006 JF |
423 | int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg; |
424 | int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg; | |
78c70acd JF |
425 | |
426 | init_pair(info->type, fg, bg); | |
427 | } | |
428 | } | |
429 | ||
430 | ||
b801d8b2 JF |
431 | /* |
432 | * Viewer | |
433 | */ | |
434 | ||
435 | struct view { | |
436 | char *name; | |
437 | char *cmd; | |
fd85fef1 | 438 | char *id; |
b801d8b2 | 439 | |
22f66b0a | 440 | |
b801d8b2 | 441 | /* Rendering */ |
22f66b0a JF |
442 | int (*read)(struct view *, char *); |
443 | int (*draw)(struct view *, unsigned int); | |
444 | size_t objsize; /* Size of objects in the line index */ | |
445 | ||
b801d8b2 | 446 | WINDOW *win; |
fd85fef1 | 447 | int height, width; |
b801d8b2 JF |
448 | |
449 | /* Navigation */ | |
450 | unsigned long offset; /* Offset of the window top */ | |
451 | unsigned long lineno; /* Current line number */ | |
452 | ||
453 | /* Buffering */ | |
454 | unsigned long lines; /* Total number of lines */ | |
22f66b0a | 455 | void **line; /* Line index */ |
b801d8b2 JF |
456 | |
457 | /* Loading */ | |
458 | FILE *pipe; | |
459 | }; | |
460 | ||
22f66b0a JF |
461 | static int pager_draw(struct view *view, unsigned int lineno); |
462 | static int pager_read(struct view *view, char *line); | |
463 | ||
464 | static int main_draw(struct view *view, unsigned int lineno); | |
465 | static int main_read(struct view *view, char *line); | |
b801d8b2 | 466 | |
fd85fef1 | 467 | #define DIFF_CMD \ |
b801d8b2 JF |
468 | "git log --stat -n1 %s ; echo; " \ |
469 | "git diff --find-copies-harder -B -C %s^ %s" | |
470 | ||
471 | #define LOG_CMD \ | |
9d3f5834 | 472 | "git log --cc --stat -n100 %s" |
b801d8b2 | 473 | |
fd85fef1 JF |
474 | #define MAIN_CMD \ |
475 | "git log --stat --pretty=raw %s" | |
476 | ||
4c6fabc2 | 477 | /* The status window is used for polling keystrokes. */ |
b801d8b2 | 478 | static WINDOW *status_win; |
78c70acd JF |
479 | static WINDOW *title_win; |
480 | ||
4c6fabc2 JF |
481 | /* The number of loading views. Controls when nodelay should be in effect when |
482 | * polling user input. */ | |
fd85fef1 JF |
483 | static unsigned int nloading; |
484 | ||
b801d8b2 | 485 | static struct view views[] = { |
22f66b0a | 486 | { "diff", DIFF_CMD, commit_id, pager_read, pager_draw, sizeof(char) }, |
78c70acd JF |
487 | { "log", LOG_CMD, head_id, pager_read, pager_draw, sizeof(char) }, |
488 | { "main", MAIN_CMD, head_id, main_read, main_draw, sizeof(struct commit) }, | |
b801d8b2 JF |
489 | }; |
490 | ||
4c6fabc2 | 491 | /* The display array of active views and the index of the current view. */ |
b801d8b2 | 492 | static struct view *display[ARRAY_SIZE(views)]; |
4c6fabc2 | 493 | static unsigned int current_view; |
22f66b0a | 494 | |
b801d8b2 JF |
495 | #define foreach_view(view, i) \ |
496 | for (i = 0; i < sizeof(display) && (view = display[i]); i++) | |
497 | ||
4c6fabc2 | 498 | |
b801d8b2 | 499 | static void |
82e78006 | 500 | redraw_view_from(struct view *view, int lineno) |
b801d8b2 | 501 | { |
82e78006 | 502 | assert(0 <= lineno && lineno < view->height); |
b801d8b2 | 503 | |
82e78006 | 504 | for (; lineno < view->height; lineno++) { |
22f66b0a | 505 | if (!view->draw(view, lineno)) |
fd85fef1 | 506 | break; |
b801d8b2 JF |
507 | } |
508 | ||
509 | redrawwin(view->win); | |
510 | wrefresh(view->win); | |
511 | } | |
512 | ||
b76c2afc | 513 | static void |
82e78006 JF |
514 | redraw_view(struct view *view) |
515 | { | |
516 | wclear(view->win); | |
517 | redraw_view_from(view, 0); | |
518 | } | |
519 | ||
520 | static void | |
b76c2afc JF |
521 | resize_view(struct view *view) |
522 | { | |
523 | int lines, cols; | |
524 | ||
525 | getmaxyx(stdscr, lines, cols); | |
526 | ||
527 | if (view->win) { | |
528 | mvwin(view->win, 0, 0); | |
529 | wresize(view->win, lines - 2, cols); | |
530 | ||
531 | } else { | |
532 | view->win = newwin(lines - 2, 0, 0, 0); | |
533 | if (!view->win) { | |
534 | report("failed to create %s view", view->name); | |
535 | return; | |
536 | } | |
537 | scrollok(view->win, TRUE); | |
538 | } | |
539 | ||
540 | getmaxyx(view->win, view->height, view->width); | |
541 | } | |
542 | ||
78c70acd | 543 | |
4a2909a7 | 544 | /* Scrolling backend */ |
b801d8b2 | 545 | static void |
4a2909a7 | 546 | do_scroll_view(struct view *view, int lines) |
b801d8b2 | 547 | { |
fd85fef1 JF |
548 | /* The rendering expects the new offset. */ |
549 | view->offset += lines; | |
550 | ||
551 | assert(0 <= view->offset && view->offset < view->lines); | |
552 | assert(lines); | |
b801d8b2 | 553 | |
82e78006 | 554 | /* Redraw the whole screen if scrolling is pointless. */ |
4c6fabc2 | 555 | if (view->height < ABS(lines)) { |
b76c2afc JF |
556 | redraw_view(view); |
557 | ||
558 | } else { | |
22f66b0a | 559 | int line = lines > 0 ? view->height - lines : 0; |
82e78006 | 560 | int end = line + ABS(lines); |
fd85fef1 JF |
561 | |
562 | wscrl(view->win, lines); | |
563 | ||
22f66b0a JF |
564 | for (; line < end; line++) { |
565 | if (!view->draw(view, line)) | |
fd85fef1 JF |
566 | break; |
567 | } | |
568 | } | |
569 | ||
570 | /* Move current line into the view. */ | |
571 | if (view->lineno < view->offset) { | |
572 | view->lineno = view->offset; | |
22f66b0a | 573 | view->draw(view, 0); |
fd85fef1 JF |
574 | |
575 | } else if (view->lineno >= view->offset + view->height) { | |
576 | view->lineno = view->offset + view->height - 1; | |
22f66b0a | 577 | view->draw(view, view->lineno - view->offset); |
fd85fef1 JF |
578 | } |
579 | ||
4c6fabc2 | 580 | assert(view->offset <= view->lineno && view->lineno < view->lines); |
fd85fef1 JF |
581 | |
582 | redrawwin(view->win); | |
583 | wrefresh(view->win); | |
9d3f5834 | 584 | report(""); |
fd85fef1 | 585 | } |
78c70acd | 586 | |
4a2909a7 | 587 | /* Scroll frontend */ |
fd85fef1 JF |
588 | static void |
589 | scroll_view(struct view *view, int request) | |
590 | { | |
591 | int lines = 1; | |
b801d8b2 JF |
592 | |
593 | switch (request) { | |
4a2909a7 | 594 | case REQ_SCROLL_PAGE_DOWN: |
fd85fef1 | 595 | lines = view->height; |
4a2909a7 | 596 | case REQ_SCROLL_LINE_DOWN: |
b801d8b2 | 597 | if (view->offset + lines > view->lines) |
bde3653a | 598 | lines = view->lines - view->offset; |
b801d8b2 | 599 | |
fd85fef1 | 600 | if (lines == 0 || view->offset + view->height >= view->lines) { |
b801d8b2 JF |
601 | report("already at last line"); |
602 | return; | |
603 | } | |
604 | break; | |
605 | ||
4a2909a7 | 606 | case REQ_SCROLL_PAGE_UP: |
fd85fef1 | 607 | lines = view->height; |
4a2909a7 | 608 | case REQ_SCROLL_LINE_UP: |
b801d8b2 JF |
609 | if (lines > view->offset) |
610 | lines = view->offset; | |
611 | ||
612 | if (lines == 0) { | |
613 | report("already at first line"); | |
614 | return; | |
615 | } | |
616 | ||
fd85fef1 | 617 | lines = -lines; |
b801d8b2 | 618 | break; |
b801d8b2 JF |
619 | } |
620 | ||
4a2909a7 | 621 | do_scroll_view(view, lines); |
fd85fef1 | 622 | } |
b801d8b2 | 623 | |
4a2909a7 | 624 | /* Cursor moving */ |
fd85fef1 | 625 | static void |
4a2909a7 | 626 | move_view(struct view *view, int request) |
fd85fef1 JF |
627 | { |
628 | int steps; | |
b801d8b2 | 629 | |
fd85fef1 | 630 | switch (request) { |
4a2909a7 | 631 | case REQ_MOVE_FIRST_LINE: |
78c70acd JF |
632 | steps = -view->lineno; |
633 | break; | |
634 | ||
4a2909a7 | 635 | case REQ_MOVE_LAST_LINE: |
78c70acd JF |
636 | steps = view->lines - view->lineno - 1; |
637 | break; | |
638 | ||
4a2909a7 | 639 | case REQ_MOVE_PAGE_UP: |
78c70acd JF |
640 | steps = view->height > view->lineno |
641 | ? -view->lineno : -view->height; | |
642 | break; | |
643 | ||
4a2909a7 | 644 | case REQ_MOVE_PAGE_DOWN: |
78c70acd JF |
645 | steps = view->lineno + view->height >= view->lines |
646 | ? view->lines - view->lineno - 1 : view->height; | |
647 | break; | |
648 | ||
4a2909a7 | 649 | case REQ_MOVE_UP: |
fd85fef1 JF |
650 | steps = -1; |
651 | break; | |
b801d8b2 | 652 | |
4a2909a7 | 653 | case REQ_MOVE_DOWN: |
fd85fef1 JF |
654 | steps = 1; |
655 | break; | |
78c70acd | 656 | } |
b801d8b2 | 657 | |
4c6fabc2 | 658 | if (steps <= 0 && view->lineno == 0) { |
78c70acd JF |
659 | report("already at first line"); |
660 | return; | |
b801d8b2 | 661 | |
4c6fabc2 | 662 | } else if (steps >= 0 && view->lineno + 1 == view->lines) { |
78c70acd JF |
663 | report("already at last line"); |
664 | return; | |
fd85fef1 JF |
665 | } |
666 | ||
4c6fabc2 | 667 | /* Move the current line */ |
fd85fef1 | 668 | view->lineno += steps; |
4c6fabc2 JF |
669 | assert(0 <= view->lineno && view->lineno < view->lines); |
670 | ||
671 | /* Repaint the old "current" line if we be scrolling */ | |
672 | if (ABS(steps) < view->height) | |
673 | view->draw(view, view->lineno - steps - view->offset); | |
fd85fef1 | 674 | |
4c6fabc2 | 675 | /* Check whether the view needs to be scrolled */ |
fd85fef1 JF |
676 | if (view->lineno < view->offset || |
677 | view->lineno >= view->offset + view->height) { | |
678 | if (steps < 0 && -steps > view->offset) { | |
679 | steps = -view->offset; | |
b76c2afc JF |
680 | |
681 | } else if (steps > 0) { | |
682 | if (view->lineno == view->lines - 1 && | |
683 | view->lines > view->height) { | |
684 | steps = view->lines - view->offset - 1; | |
685 | if (steps >= view->height) | |
686 | steps -= view->height - 1; | |
687 | } | |
b801d8b2 | 688 | } |
78c70acd | 689 | |
4a2909a7 | 690 | do_scroll_view(view, steps); |
fd85fef1 | 691 | return; |
b801d8b2 JF |
692 | } |
693 | ||
4c6fabc2 | 694 | /* Draw the current line */ |
22f66b0a | 695 | view->draw(view, view->lineno - view->offset); |
fd85fef1 | 696 | |
b801d8b2 JF |
697 | redrawwin(view->win); |
698 | wrefresh(view->win); | |
9d3f5834 | 699 | report(""); |
b801d8b2 JF |
700 | } |
701 | ||
b801d8b2 JF |
702 | |
703 | ||
704 | static bool | |
705 | begin_update(struct view *view) | |
706 | { | |
707 | char buf[1024]; | |
708 | ||
709 | if (view->cmd) { | |
fd85fef1 JF |
710 | char *id = view->id; |
711 | ||
712 | if (snprintf(buf, sizeof(buf), view->cmd, id, id, id) < sizeof(buf)) | |
b801d8b2 JF |
713 | view->pipe = popen(buf, "r"); |
714 | ||
715 | if (!view->pipe) | |
716 | return FALSE; | |
717 | ||
718 | if (nloading++ == 0) | |
719 | nodelay(status_win, TRUE); | |
720 | } | |
721 | ||
722 | display[current_view] = view; | |
723 | ||
724 | view->offset = 0; | |
725 | view->lines = 0; | |
726 | view->lineno = 0; | |
727 | ||
728 | return TRUE; | |
729 | } | |
730 | ||
731 | static void | |
732 | end_update(struct view *view) | |
733 | { | |
734 | wattrset(view->win, A_NORMAL); | |
735 | pclose(view->pipe); | |
736 | view->pipe = NULL; | |
737 | ||
738 | if (nloading-- == 1) | |
739 | nodelay(status_win, FALSE); | |
740 | } | |
741 | ||
742 | static int | |
743 | update_view(struct view *view) | |
744 | { | |
745 | char buffer[BUFSIZ]; | |
746 | char *line; | |
22f66b0a | 747 | void **tmp; |
82e78006 JF |
748 | /* The number of lines to read. If too low it will cause too much |
749 | * redrawing (and possible flickering), if too high responsiveness | |
750 | * will suffer. */ | |
fd85fef1 | 751 | int lines = view->height; |
82e78006 | 752 | int redraw_from = -1; |
b801d8b2 JF |
753 | |
754 | if (!view->pipe) | |
755 | return TRUE; | |
756 | ||
82e78006 JF |
757 | /* Only redraw if lines are visible. */ |
758 | if (view->offset + view->height >= view->lines) | |
759 | redraw_from = view->lines - view->offset; | |
b801d8b2 JF |
760 | |
761 | tmp = realloc(view->line, sizeof(*view->line) * (view->lines + lines)); | |
762 | if (!tmp) | |
763 | goto alloc_error; | |
764 | ||
765 | view->line = tmp; | |
766 | ||
767 | while ((line = fgets(buffer, sizeof(buffer), view->pipe))) { | |
768 | int linelen; | |
769 | ||
b801d8b2 JF |
770 | linelen = strlen(line); |
771 | if (linelen) | |
772 | line[linelen - 1] = 0; | |
773 | ||
22f66b0a | 774 | if (!view->read(view, line)) |
b801d8b2 | 775 | goto alloc_error; |
fd85fef1 JF |
776 | |
777 | if (lines-- == 1) | |
778 | break; | |
b801d8b2 JF |
779 | } |
780 | ||
4a2909a7 JF |
781 | /* CPU hogilicious! */ |
782 | update_title(); | |
783 | ||
82e78006 JF |
784 | if (redraw_from >= 0) { |
785 | /* If this is an incremental update, redraw the previous line | |
786 | * since for commits some members could have changed. */ | |
787 | if (redraw_from > 0) | |
788 | redraw_from--; | |
789 | ||
790 | /* Incrementally draw avoids flickering. */ | |
791 | redraw_view_from(view, redraw_from); | |
4c6fabc2 | 792 | } |
b801d8b2 JF |
793 | |
794 | if (ferror(view->pipe)) { | |
4c6fabc2 | 795 | report("failed to read %s: %s", view->cmd, strerror(errno)); |
b801d8b2 JF |
796 | goto end; |
797 | ||
798 | } else if (feof(view->pipe)) { | |
9d3f5834 | 799 | report("loaded %d lines", view->lines); |
b801d8b2 JF |
800 | goto end; |
801 | } | |
802 | ||
803 | return TRUE; | |
804 | ||
805 | alloc_error: | |
fd85fef1 | 806 | report("allocation failure"); |
b801d8b2 JF |
807 | |
808 | end: | |
809 | end_update(view); | |
810 | return FALSE; | |
811 | } | |
812 | ||
813 | ||
814 | static struct view * | |
815 | switch_view(struct view *prev, int request) | |
816 | { | |
4a2909a7 | 817 | struct view *view = &views[request]; |
b801d8b2 JF |
818 | struct view *displayed; |
819 | int i; | |
820 | ||
821 | if (view == prev) { | |
822 | foreach_view (displayed, i) ; | |
823 | ||
824 | if (i == 1) | |
fd85fef1 | 825 | report("already in %s view", view->name); |
b801d8b2 JF |
826 | else |
827 | report("FIXME: Maximize"); | |
828 | ||
829 | return view; | |
830 | ||
831 | } else { | |
832 | foreach_view (displayed, i) { | |
833 | if (view == displayed) { | |
834 | current_view = i; | |
fd85fef1 | 835 | report("new current view"); |
b801d8b2 JF |
836 | return view; |
837 | } | |
838 | } | |
839 | } | |
840 | ||
841 | if (!view->win) | |
842 | resize_view(view); | |
843 | ||
844 | /* Reload */ | |
845 | ||
846 | if (view->line) { | |
847 | for (i = 0; i < view->lines; i++) | |
848 | if (view->line[i]) | |
849 | free(view->line[i]); | |
850 | ||
851 | free(view->line); | |
852 | view->line = NULL; | |
853 | } | |
854 | ||
855 | if (prev && prev->pipe) | |
856 | end_update(prev); | |
857 | ||
858 | if (begin_update(view)) { | |
82e78006 | 859 | if (!view->cmd) { |
b801d8b2 | 860 | report("%s", HELP); |
82e78006 JF |
861 | } else { |
862 | /* Clear the old view and let the incremental updating | |
863 | * refill the screen. */ | |
864 | wclear(view->win); | |
b801d8b2 | 865 | report("loading..."); |
82e78006 | 866 | } |
b801d8b2 JF |
867 | } |
868 | ||
869 | return view; | |
870 | } | |
871 | ||
872 | ||
4a2909a7 | 873 | /* Process keystrokes */ |
b801d8b2 JF |
874 | static int |
875 | view_driver(struct view *view, int key) | |
876 | { | |
877 | int request = get_request(key); | |
878 | int i; | |
879 | ||
880 | switch (request) { | |
4a2909a7 JF |
881 | case REQ_MOVE_UP: |
882 | case REQ_MOVE_DOWN: | |
883 | case REQ_MOVE_PAGE_UP: | |
884 | case REQ_MOVE_PAGE_DOWN: | |
885 | case REQ_MOVE_FIRST_LINE: | |
886 | case REQ_MOVE_LAST_LINE: | |
fd85fef1 | 887 | if (view) |
4a2909a7 | 888 | move_view(view, request); |
fd85fef1 JF |
889 | break; |
890 | ||
4a2909a7 JF |
891 | case REQ_SCROLL_LINE_DOWN: |
892 | case REQ_SCROLL_LINE_UP: | |
893 | case REQ_SCROLL_PAGE_DOWN: | |
894 | case REQ_SCROLL_PAGE_UP: | |
b801d8b2 JF |
895 | if (view) |
896 | scroll_view(view, request); | |
897 | break; | |
898 | ||
4a2909a7 JF |
899 | case REQ_VIEW_MAIN: |
900 | case REQ_VIEW_LOG: | |
901 | case REQ_VIEW_DIFF: | |
b801d8b2 JF |
902 | view = switch_view(view, request); |
903 | break; | |
904 | ||
4a2909a7 | 905 | case REQ_TOGGLE_LINE_NUMBERS: |
b76c2afc | 906 | opt_line_number = !opt_line_number; |
4a2909a7 JF |
907 | if (view) |
908 | redraw_view(view); | |
b801d8b2 JF |
909 | break; |
910 | ||
4a2909a7 | 911 | case REQ_STOP_LOADING: |
b801d8b2 JF |
912 | foreach_view (view, i) { |
913 | if (view->pipe) { | |
914 | end_update(view); | |
4a2909a7 | 915 | //scroll_view(view, 0); |
b801d8b2 JF |
916 | } |
917 | } | |
918 | break; | |
919 | ||
4a2909a7 | 920 | case REQ_SHOW_VERSION: |
b801d8b2 JF |
921 | report("version %s", VERSION); |
922 | return TRUE; | |
923 | ||
4a2909a7 JF |
924 | case REQ_SCREEN_REDRAW: |
925 | redraw_view(view); | |
926 | break; | |
927 | ||
928 | case REQ_SCREEN_UPDATE: | |
b801d8b2 JF |
929 | doupdate(); |
930 | return TRUE; | |
931 | ||
932 | case REQ_QUIT: | |
933 | return FALSE; | |
934 | ||
935 | default: | |
936 | report(HELP); | |
937 | return TRUE; | |
938 | } | |
939 | ||
940 | return TRUE; | |
941 | } | |
942 | ||
943 | ||
944 | /* | |
945 | * Rendering | |
946 | */ | |
947 | ||
b801d8b2 | 948 | static int |
22f66b0a | 949 | pager_draw(struct view *view, unsigned int lineno) |
b801d8b2 | 950 | { |
78c70acd | 951 | enum line_type type; |
b801d8b2 | 952 | char *line; |
4c6fabc2 | 953 | int linelen; |
78c70acd | 954 | int attr; |
b801d8b2 | 955 | |
fd85fef1 JF |
956 | if (view->offset + lineno >= view->lines) |
957 | return FALSE; | |
958 | ||
b801d8b2 | 959 | line = view->line[view->offset + lineno]; |
78c70acd | 960 | type = get_line_type(line); |
b801d8b2 | 961 | |
fd85fef1 | 962 | if (view->offset + lineno == view->lineno) { |
78c70acd | 963 | if (type == LINE_COMMIT) |
82e78006 | 964 | string_copy(commit_id, line + 7); |
78c70acd | 965 | type = LINE_CURSOR; |
fd85fef1 JF |
966 | } |
967 | ||
78c70acd | 968 | attr = get_line_attr(type); |
b801d8b2 | 969 | wattrset(view->win, attr); |
b76c2afc | 970 | |
4c6fabc2 JF |
971 | linelen = strlen(line); |
972 | linelen = MIN(linelen, view->width); | |
973 | ||
b76c2afc | 974 | if (opt_line_number) { |
82e78006 JF |
975 | unsigned int real_lineno = view->offset + lineno + 1; |
976 | int col = 1; | |
977 | ||
978 | if (real_lineno == 1 || (real_lineno % NUMBER_INTERVAL) == 0) | |
979 | mvwprintw(view->win, lineno, 0, "%4d: ", real_lineno); | |
4c6fabc2 | 980 | else |
82e78006 | 981 | mvwaddstr(view->win, lineno, 0, " : "); |
4c6fabc2 | 982 | |
b76c2afc JF |
983 | while (line) { |
984 | if (*line == '\t') { | |
82e78006 JF |
985 | waddnstr(view->win, " ", 8 - (col % 8)); |
986 | col += 8 - (col % 8); | |
b76c2afc | 987 | line++; |
82e78006 | 988 | |
b76c2afc JF |
989 | } else { |
990 | char *tab = strchr(line, '\t'); | |
991 | ||
992 | if (tab) | |
993 | waddnstr(view->win, line, tab - line); | |
994 | else | |
995 | waddstr(view->win, line); | |
82e78006 | 996 | col += tab - line; |
b76c2afc JF |
997 | line = tab; |
998 | } | |
999 | } | |
1000 | waddstr(view->win, line); | |
1001 | ||
1002 | } else { | |
1003 | /* No empty lines makes cursor drawing and clearing implicit. */ | |
1004 | if (!*line) | |
4c6fabc2 JF |
1005 | line = " ", linelen = 1; |
1006 | mvwaddnstr(view->win, lineno, 0, line, linelen); | |
b76c2afc | 1007 | } |
b801d8b2 JF |
1008 | |
1009 | return TRUE; | |
1010 | } | |
1011 | ||
22f66b0a JF |
1012 | static int |
1013 | pager_read(struct view *view, char *line) | |
1014 | { | |
1015 | view->line[view->lines] = strdup(line); | |
1016 | if (!view->line[view->lines]) | |
1017 | return FALSE; | |
1018 | ||
1019 | view->lines++; | |
1020 | return TRUE; | |
1021 | } | |
1022 | ||
1023 | static int | |
1024 | main_draw(struct view *view, unsigned int lineno) | |
1025 | { | |
b76c2afc | 1026 | char buf[21]; |
22f66b0a | 1027 | struct commit *commit; |
78c70acd | 1028 | enum line_type type; |
b76c2afc JF |
1029 | int cols = 0; |
1030 | size_t timelen; | |
22f66b0a JF |
1031 | |
1032 | if (view->offset + lineno >= view->lines) | |
1033 | return FALSE; | |
1034 | ||
1035 | commit = view->line[view->offset + lineno]; | |
4c6fabc2 JF |
1036 | if (!*commit->author) |
1037 | return FALSE; | |
22f66b0a | 1038 | |
22f66b0a | 1039 | if (view->offset + lineno == view->lineno) { |
82e78006 | 1040 | string_copy(commit_id, commit->id); |
78c70acd JF |
1041 | type = LINE_CURSOR; |
1042 | } else { | |
b76c2afc JF |
1043 | type = LINE_MAIN_COMMIT; |
1044 | } | |
1045 | ||
1046 | wmove(view->win, lineno, cols); | |
1047 | wattrset(view->win, get_line_attr(LINE_MAIN_DATE)); | |
1048 | ||
4c6fabc2 | 1049 | timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time); |
b76c2afc | 1050 | waddnstr(view->win, buf, timelen); |
4c6fabc2 | 1051 | waddstr(view->win, " "); |
b76c2afc | 1052 | |
4c6fabc2 | 1053 | cols += DATE_COLS; |
b76c2afc JF |
1054 | wmove(view->win, lineno, cols); |
1055 | wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR)); | |
1056 | ||
1057 | if (strlen(commit->author) > 19) { | |
1058 | waddnstr(view->win, commit->author, 18); | |
1059 | wattrset(view->win, get_line_attr(LINE_MAIN_DELIM)); | |
1060 | waddch(view->win, '~'); | |
1061 | } else { | |
1062 | waddstr(view->win, commit->author); | |
22f66b0a JF |
1063 | } |
1064 | ||
b76c2afc JF |
1065 | cols += 20; |
1066 | wattrset(view->win, A_NORMAL); | |
1067 | mvwaddch(view->win, lineno, cols, ACS_LTEE); | |
78c70acd | 1068 | wattrset(view->win, get_line_attr(type)); |
b76c2afc | 1069 | mvwaddstr(view->win, lineno, cols + 2, commit->title); |
22f66b0a JF |
1070 | wattrset(view->win, A_NORMAL); |
1071 | ||
1072 | return TRUE; | |
1073 | } | |
1074 | ||
4c6fabc2 | 1075 | /* Reads git log --pretty=raw output and parses it into the commit struct. */ |
22f66b0a JF |
1076 | static int |
1077 | main_read(struct view *view, char *line) | |
1078 | { | |
78c70acd JF |
1079 | enum line_type type = get_line_type(line); |
1080 | struct commit *commit; | |
22f66b0a | 1081 | |
78c70acd JF |
1082 | switch (type) { |
1083 | case LINE_COMMIT: | |
22f66b0a JF |
1084 | commit = calloc(1, sizeof(struct commit)); |
1085 | if (!commit) | |
1086 | return FALSE; | |
1087 | ||
4c6fabc2 | 1088 | line += STRING_SIZE("commit "); |
b76c2afc | 1089 | |
22f66b0a | 1090 | view->line[view->lines++] = commit; |
82e78006 | 1091 | string_copy(commit->id, line); |
78c70acd | 1092 | break; |
22f66b0a | 1093 | |
b76c2afc JF |
1094 | case LINE_AUTHOR_IDENT: |
1095 | { | |
4c6fabc2 | 1096 | char *ident = line + STRING_SIZE("author "); |
b76c2afc JF |
1097 | char *end = strchr(ident, '<'); |
1098 | ||
1099 | if (end) { | |
1100 | for (; end > ident && isspace(end[-1]); end--) ; | |
1101 | *end = 0; | |
1102 | } | |
1103 | ||
1104 | commit = view->line[view->lines - 1]; | |
82e78006 | 1105 | string_copy(commit->author, ident); |
b76c2afc | 1106 | |
4c6fabc2 | 1107 | /* Parse epoch and timezone */ |
b76c2afc JF |
1108 | if (end) { |
1109 | char *secs = strchr(end + 1, '>'); | |
1110 | char *zone; | |
1111 | time_t time; | |
1112 | ||
1113 | if (!secs || secs[1] != ' ') | |
1114 | break; | |
1115 | ||
1116 | secs += 2; | |
1117 | time = (time_t) atol(secs); | |
1118 | zone = strchr(secs, ' '); | |
4c6fabc2 | 1119 | if (zone && strlen(zone) == STRING_SIZE(" +0700")) { |
b76c2afc JF |
1120 | long tz; |
1121 | ||
1122 | zone++; | |
1123 | tz = ('0' - zone[1]) * 60 * 60 * 10; | |
1124 | tz += ('0' - zone[2]) * 60 * 60; | |
1125 | tz += ('0' - zone[3]) * 60; | |
1126 | tz += ('0' - zone[4]) * 60; | |
1127 | ||
1128 | if (zone[0] == '-') | |
1129 | tz = -tz; | |
1130 | ||
1131 | time -= tz; | |
1132 | } | |
1133 | gmtime_r(&time, &commit->time); | |
1134 | } | |
1135 | break; | |
1136 | } | |
78c70acd | 1137 | default: |
4c6fabc2 | 1138 | /* Fill in the commit title */ |
78c70acd | 1139 | commit = view->line[view->lines - 1]; |
82e78006 JF |
1140 | if (commit->title[0] || |
1141 | strncmp(line, " ", 4) || | |
1142 | isspace(line[5])) | |
1143 | break; | |
1144 | ||
1145 | string_copy(commit->title, line + 4); | |
22f66b0a JF |
1146 | } |
1147 | ||
1148 | return TRUE; | |
1149 | } | |
1150 | ||
1151 | ||
b801d8b2 JF |
1152 | /* |
1153 | * Main | |
1154 | */ | |
1155 | ||
1156 | static void | |
1157 | quit(int sig) | |
1158 | { | |
1159 | if (status_win) | |
1160 | delwin(status_win); | |
78c70acd JF |
1161 | if (title_win) |
1162 | delwin(title_win); | |
b801d8b2 JF |
1163 | endwin(); |
1164 | ||
1165 | /* FIXME: Shutdown gracefully. */ | |
1166 | ||
1167 | exit(0); | |
1168 | } | |
1169 | ||
1170 | static void die(const char *err, ...) | |
1171 | { | |
1172 | va_list args; | |
1173 | ||
1174 | endwin(); | |
1175 | ||
1176 | va_start(args, err); | |
1177 | fputs("tig: ", stderr); | |
1178 | vfprintf(stderr, err, args); | |
1179 | fputs("\n", stderr); | |
1180 | va_end(args); | |
1181 | ||
1182 | exit(1); | |
1183 | } | |
1184 | ||
1185 | static void | |
4a2909a7 | 1186 | update_title(void) |
b801d8b2 | 1187 | { |
9d3f5834 | 1188 | struct view *view = display[current_view]; |
b801d8b2 | 1189 | |
b76c2afc JF |
1190 | werase(title_win); |
1191 | wmove(title_win, 0, 0); | |
9d3f5834 | 1192 | if (view) { |
4a2909a7 | 1193 | /* [main] ref: 334b506... - line 6 of 4383 (0%) */ |
9d3f5834 JF |
1194 | wprintw(title_win, "[%s] ref: %s", view->name, commit_id); |
1195 | ||
1196 | if (view->lines) { | |
1197 | wprintw(title_win, " - line %d of %d (%d%%)", | |
1198 | view->lineno + 1, | |
1199 | view->lines, | |
1200 | view->lines ? (view->lineno + 1) * 100 / view->lines : 0); | |
1201 | } | |
1202 | } else { | |
1203 | wprintw(title_win, "commit %s", commit_id); | |
1204 | } | |
b76c2afc | 1205 | wrefresh(title_win); |
4a2909a7 JF |
1206 | } |
1207 | ||
1208 | /* Status and title window updater. */ | |
1209 | static void | |
1210 | report(const char *msg, ...) | |
1211 | { | |
1212 | va_list args; | |
b76c2afc | 1213 | |
b801d8b2 JF |
1214 | va_start(args, msg); |
1215 | ||
4a2909a7 JF |
1216 | update_title(); |
1217 | ||
b801d8b2 JF |
1218 | werase(status_win); |
1219 | wmove(status_win, 0, 0); | |
1220 | ||
fd85fef1 | 1221 | #if 0 |
b801d8b2 | 1222 | if (display[current_view]) |
fd85fef1 JF |
1223 | wprintw(status_win, "%s %4s: ", commit_id, display[current_view]->name); |
1224 | #endif | |
b801d8b2 JF |
1225 | vwprintw(status_win, msg, args); |
1226 | wrefresh(status_win); | |
1227 | ||
1228 | va_end(args); | |
b801d8b2 JF |
1229 | } |
1230 | ||
1231 | int | |
1232 | main(int argc, char *argv[]) | |
1233 | { | |
b801d8b2 | 1234 | int x, y; |
b76c2afc JF |
1235 | int request; |
1236 | int git_cmd; | |
b801d8b2 JF |
1237 | |
1238 | signal(SIGINT, quit); | |
1239 | ||
b76c2afc JF |
1240 | git_cmd = parse_options(argc, argv); |
1241 | if (git_cmd < 0) | |
1242 | return 0; | |
82e78006 JF |
1243 | if (git_cmd < argc) { |
1244 | die("opts"); | |
1245 | } | |
b76c2afc JF |
1246 | |
1247 | request = opt_request; | |
1248 | ||
b801d8b2 JF |
1249 | initscr(); /* initialize the curses library */ |
1250 | nonl(); /* tell curses not to do NL->CR/NL on output */ | |
1251 | cbreak(); /* take input chars one at a time, no wait for \n */ | |
1252 | noecho(); /* don't echo input */ | |
1253 | leaveok(stdscr, TRUE); | |
1254 | /* curs_set(0); */ | |
1255 | ||
1256 | if (has_colors()) | |
1257 | init_colors(); | |
1258 | ||
1259 | getmaxyx(stdscr, y, x); | |
1260 | status_win = newwin(1, 0, y - 1, 0); | |
1261 | if (!status_win) | |
1262 | die("Failed to create status window"); | |
1263 | ||
78c70acd JF |
1264 | title_win = newwin(1, 0, y - 2, 0); |
1265 | if (!title_win) | |
1266 | die("Failed to create title window"); | |
1267 | ||
b801d8b2 JF |
1268 | /* Enable keyboard mapping */ |
1269 | keypad(status_win, TRUE); | |
78c70acd JF |
1270 | wbkgdset(status_win, get_line_attr(LINE_STATUS)); |
1271 | wbkgdset(title_win, get_line_attr(LINE_TITLE)); | |
b801d8b2 JF |
1272 | |
1273 | while (view_driver(display[current_view], request)) { | |
1274 | struct view *view; | |
1275 | int i; | |
1276 | ||
1277 | foreach_view (view, i) { | |
1278 | if (view->pipe) { | |
1279 | update_view(view); | |
1280 | } | |
1281 | } | |
1282 | ||
1283 | /* Refresh, accept single keystroke of input */ | |
1284 | request = wgetch(status_win); | |
1285 | if (request == KEY_RESIZE) { | |
1286 | int lines, cols; | |
1287 | ||
1288 | getmaxyx(stdscr, lines, cols); | |
78c70acd | 1289 | |
b801d8b2 JF |
1290 | mvwin(status_win, lines - 1, 0); |
1291 | wresize(status_win, 1, cols - 1); | |
78c70acd JF |
1292 | |
1293 | mvwin(title_win, lines - 2, 0); | |
1294 | wresize(title_win, 1, cols - 1); | |
b801d8b2 JF |
1295 | } |
1296 | } | |
1297 | ||
1298 | quit(0); | |
1299 | ||
1300 | return 0; | |
1301 | } | |
1302 | ||
1303 | /** | |
4c6fabc2 JF |
1304 | * TODO |
1305 | * ---- | |
1306 | * Features that should be explored. | |
1307 | * | |
82e78006 JF |
1308 | * - Dynamic scaling of line number indentation. |
1309 | * | |
1310 | * - Proper command line handling; ability to take the command that should be | |
1311 | * shown. Example: | |
4c6fabc2 JF |
1312 | * |
1313 | * $ tig log -p | |
1314 | * | |
82e78006 JF |
1315 | * - Internal command line (exmode-inspired) which allows to specify what git |
1316 | * log or git diff command to run. Example: | |
4c6fabc2 JF |
1317 | * |
1318 | * :log -p | |
1319 | * | |
1320 | * - Proper resizing support. I am yet to figure out whether catching SIGWINCH | |
1321 | * is preferred over using ncurses' built-in support for resizing. | |
1322 | * | |
1323 | * - Locale support. | |
1324 | * | |
b801d8b2 JF |
1325 | * COPYRIGHT |
1326 | * --------- | |
4a2909a7 | 1327 | * Copyright (c) Jonas Fonseca <fonseca@diku.dk>, 2006 |
b801d8b2 JF |
1328 | * |
1329 | * This program is free software; you can redistribute it and/or modify | |
1330 | * it under the terms of the GNU General Public License as published by | |
1331 | * the Free Software Foundation; either version 2 of the License, or | |
1332 | * (at your option) any later version. | |
1333 | * | |
1334 | * SEE ALSO | |
1335 | * -------- | |
4c6fabc2 | 1336 | * [verse] |
b801d8b2 JF |
1337 | * link:http://www.kernel.org/pub/software/scm/git/docs/[git(7)], |
1338 | * link:http://www.kernel.org/pub/software/scm/cogito/docs/[cogito(7)] | |
4c6fabc2 JF |
1339 | * gitk(1): git repository browser written using tcl/tk, |
1340 | * gitview(1): git repository browser written using python/gtk. | |
b801d8b2 | 1341 | **/ |