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