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 | |
2e8488b4 JF |
48 | #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */ |
49 | #define SIZEOF_CMD 1024 /* Size of command buffer. */ | |
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[]. */ | |
2e8488b4 | 74 | REQ_VIEW_MAIN, |
4a2909a7 JF |
75 | REQ_VIEW_DIFF, |
76 | REQ_VIEW_LOG, | |
2e8488b4 | 77 | REQ_VIEW_HELP, |
4a2909a7 JF |
78 | |
79 | REQ_QUIT, | |
80 | REQ_SHOW_VERSION, | |
81 | REQ_STOP_LOADING, | |
82 | REQ_SCREEN_REDRAW, | |
83 | REQ_SCREEN_UPDATE, | |
84 | REQ_TOGGLE_LINE_NUMBERS, | |
85 | ||
86 | REQ_MOVE_UP, | |
87 | REQ_MOVE_DOWN, | |
88 | REQ_MOVE_PAGE_UP, | |
89 | REQ_MOVE_PAGE_DOWN, | |
90 | REQ_MOVE_FIRST_LINE, | |
91 | REQ_MOVE_LAST_LINE, | |
92 | ||
93 | REQ_SCROLL_LINE_UP, | |
94 | REQ_SCROLL_LINE_DOWN, | |
95 | REQ_SCROLL_PAGE_UP, | |
96 | REQ_SCROLL_PAGE_DOWN, | |
97 | }; | |
98 | ||
4c6fabc2 JF |
99 | struct commit { |
100 | char id[41]; | |
101 | char title[75]; | |
102 | char author[75]; | |
103 | struct tm time; | |
104 | }; | |
105 | ||
78c70acd | 106 | |
82e78006 JF |
107 | static inline void |
108 | string_ncopy(char *dst, char *src, int dstlen) | |
109 | { | |
110 | strncpy(dst, src, dstlen - 1); | |
111 | dst[dstlen - 1] = 0; | |
112 | } | |
113 | ||
114 | /* Shorthand for safely copying into a fixed buffer. */ | |
115 | #define string_copy(dst, src) \ | |
116 | string_ncopy(dst, src, sizeof(dst)) | |
117 | ||
118 | ||
b76c2afc JF |
119 | /** |
120 | * OPTIONS | |
121 | * ------- | |
122 | **/ | |
123 | ||
2e8488b4 JF |
124 | static int opt_line_number = FALSE; |
125 | static int opt_num_interval = NUMBER_INTERVAL; | |
126 | static int opt_request = REQ_VIEW_MAIN; | |
b76c2afc | 127 | |
2e8488b4 JF |
128 | char ref_head[SIZEOF_REF] = "HEAD"; |
129 | char ref_commit[SIZEOF_REF] = "HEAD"; | |
b76c2afc | 130 | |
b76c2afc JF |
131 | /* Returns the index of log or diff command or -1 to exit. */ |
132 | static int | |
133 | parse_options(int argc, char *argv[]) | |
134 | { | |
135 | int i; | |
136 | ||
137 | for (i = 1; i < argc; i++) { | |
138 | char *opt = argv[i]; | |
139 | ||
140 | /** | |
141 | * log [options]:: | |
142 | * git log options. | |
2e8488b4 | 143 | * |
b76c2afc JF |
144 | * diff [options]:: |
145 | * git diff options. | |
146 | **/ | |
2e8488b4 JF |
147 | if (!strcmp(opt, "log") || |
148 | !strcmp(opt, "diff")) { | |
149 | opt_request = opt[0] = 'l' | |
150 | ? REQ_VIEW_LOG : REQ_VIEW_DIFF; | |
b76c2afc JF |
151 | return i; |
152 | ||
153 | /** | |
154 | * -l:: | |
155 | * Start up in log view. | |
156 | **/ | |
157 | } else if (!strcmp(opt, "-l")) { | |
4a2909a7 | 158 | opt_request = REQ_VIEW_LOG; |
b76c2afc JF |
159 | |
160 | /** | |
161 | * -d:: | |
162 | * Start up in diff view. | |
163 | **/ | |
164 | } else if (!strcmp(opt, "-d")) { | |
4a2909a7 | 165 | opt_request = REQ_VIEW_DIFF; |
b76c2afc JF |
166 | |
167 | /** | |
2e8488b4 | 168 | * -n[INTERVAL], --line-number[=INTERVAL]:: |
b76c2afc | 169 | * Prefix line numbers in log and diff view. |
2e8488b4 | 170 | * Optionally, with interval different than each line. |
b76c2afc | 171 | **/ |
2e8488b4 JF |
172 | } else if (!strncmp(opt, "-n", 2) || |
173 | !strncmp(opt, "--line-number", 13)) { | |
174 | char *num = opt; | |
175 | ||
176 | if (opt[1] == 'n') { | |
177 | num = opt + 2; | |
178 | ||
179 | } else if (opt[STRING_SIZE("--line-number")] == '=') { | |
180 | num = opt + STRING_SIZE("--line-number="); | |
181 | } | |
182 | ||
183 | if (isdigit(*num)) | |
184 | opt_num_interval = atoi(num); | |
185 | ||
b76c2afc JF |
186 | opt_line_number = 1; |
187 | ||
188 | /** | |
189 | * -v, --version:: | |
190 | * Show version and exit. | |
191 | **/ | |
192 | } else if (!strcmp(opt, "-v") || | |
193 | !strcmp(opt, "--version")) { | |
194 | printf("tig version %s\n", VERSION); | |
195 | return -1; | |
196 | ||
197 | /** | |
198 | * ref:: | |
199 | * Commit reference, symbolic or raw SHA1 ID. | |
200 | **/ | |
201 | } else if (opt[0] && opt[0] != '-') { | |
2e8488b4 JF |
202 | string_copy(ref_head, opt); |
203 | string_copy(ref_commit, opt); | |
b76c2afc JF |
204 | |
205 | } else { | |
4c6fabc2 | 206 | die("unknown command '%s'", opt); |
b76c2afc JF |
207 | } |
208 | } | |
209 | ||
210 | return i; | |
211 | } | |
212 | ||
213 | ||
4a2909a7 JF |
214 | /** |
215 | * KEYS | |
216 | * ---- | |
217 | * | |
218 | * d:: | |
219 | * diff | |
220 | * l:: | |
221 | * log | |
222 | * q:: | |
223 | * quit | |
224 | * r:: | |
225 | * redraw screen | |
226 | * s:: | |
227 | * stop all background loading | |
228 | * j:: | |
229 | * down | |
230 | * k:: | |
231 | * up | |
232 | * h, ?:: | |
233 | * help | |
234 | * v:: | |
235 | * version | |
236 | **/ | |
237 | ||
238 | #define HELP "(d)iff, (l)og, (m)ain, (q)uit, (v)ersion, (h)elp" | |
239 | ||
240 | struct keymap { | |
241 | int alias; | |
242 | int request; | |
243 | }; | |
244 | ||
245 | struct keymap keymap[] = { | |
246 | /* Cursor navigation */ | |
247 | { KEY_UP, REQ_MOVE_UP }, | |
248 | { 'k', REQ_MOVE_UP }, | |
249 | { KEY_DOWN, REQ_MOVE_DOWN }, | |
250 | { 'j', REQ_MOVE_DOWN }, | |
251 | { KEY_HOME, REQ_MOVE_FIRST_LINE }, | |
252 | { KEY_END, REQ_MOVE_LAST_LINE }, | |
253 | { KEY_NPAGE, REQ_MOVE_PAGE_DOWN }, | |
254 | { KEY_PPAGE, REQ_MOVE_PAGE_UP }, | |
255 | ||
256 | /* Scrolling */ | |
257 | { KEY_IC, REQ_SCROLL_LINE_UP }, /* scroll field backward a line */ | |
258 | { KEY_DC, REQ_SCROLL_LINE_DOWN }, /* scroll field forward a line */ | |
259 | { 's', REQ_SCROLL_PAGE_DOWN }, /* scroll field forward a page */ | |
260 | { 'w', REQ_SCROLL_PAGE_UP }, /* scroll field backward a page */ | |
261 | ||
262 | /* View switching */ | |
2e8488b4 | 263 | { 'm', REQ_VIEW_MAIN }, |
4a2909a7 JF |
264 | { 'd', REQ_VIEW_DIFF }, |
265 | { 'l', REQ_VIEW_LOG }, | |
2e8488b4 | 266 | { 'h', REQ_VIEW_HELP }, |
4a2909a7 JF |
267 | |
268 | /* Misc */ | |
269 | { KEY_ESC, REQ_QUIT }, | |
270 | { 'q', REQ_QUIT }, | |
271 | { 'z', REQ_STOP_LOADING }, | |
272 | { 'v', REQ_SHOW_VERSION }, | |
273 | { 'r', REQ_SCREEN_REDRAW }, | |
274 | { 'n', REQ_TOGGLE_LINE_NUMBERS }, | |
275 | ||
276 | /* wgetch() with nodelay() enabled returns ERR when there's no input. */ | |
277 | { ERR, REQ_SCREEN_UPDATE }, | |
278 | }; | |
279 | ||
280 | static int | |
281 | get_request(int request) | |
282 | { | |
283 | int i; | |
284 | ||
285 | for (i = 0; i < ARRAY_SIZE(keymap); i++) | |
286 | if (keymap[i].alias == request) | |
287 | return keymap[i].request; | |
288 | ||
289 | return request; | |
290 | } | |
291 | ||
292 | ||
b76c2afc JF |
293 | /* |
294 | * Line-oriented content detection. | |
295 | */ | |
296 | ||
2e8488b4 JF |
297 | /* Line type String to match Foreground Background Attr |
298 | * --------- --------------- ---------- ---------- ---- */ | |
299 | #define LINE_INFO \ | |
300 | /* Diff markup */ \ | |
301 | LINE(DIFF, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
302 | LINE(INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
303 | LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ | |
304 | LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
305 | LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \ | |
306 | LINE(DIFF_OLDMODE, "old mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
307 | LINE(DIFF_NEWMODE, "new mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
308 | LINE(DIFF_COPY, "copy ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
309 | LINE(DIFF_RENAME, "rename ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
310 | LINE(DIFF_SIM, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
311 | LINE(DIFF_DISSIM, "dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
312 | /* Pretty print commit header */ \ | |
313 | LINE(AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \ | |
314 | LINE(MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
315 | LINE(DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
316 | /* Raw commit header */ \ | |
317 | LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
318 | LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
319 | LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
320 | LINE(AUTHOR_IDENT, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \ | |
321 | LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ | |
322 | /* Misc */ \ | |
323 | LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
324 | LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
325 | /* UI colors */ \ | |
326 | LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \ | |
327 | LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \ | |
328 | LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
329 | LINE(TITLE, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \ | |
330 | LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
331 | LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
332 | LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \ | |
333 | LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), | |
334 | ||
78c70acd | 335 | enum line_type { |
2e8488b4 JF |
336 | #define LINE(type, line, fg, bg, attr) \ |
337 | LINE_##type | |
338 | LINE_INFO | |
339 | #undef LINE | |
78c70acd JF |
340 | }; |
341 | ||
342 | struct line_info { | |
2e8488b4 JF |
343 | enum line_type type; /* Returned when looking up line type. */ |
344 | char *line; /* The start of line to match. */ | |
345 | int linelen; /* Size of string to match. */ | |
346 | int fg, bg, attr; /* Color and text attributes for the lines. */ | |
78c70acd JF |
347 | }; |
348 | ||
2e8488b4 | 349 | static struct line_info line_info[] = { |
78c70acd | 350 | #define LINE(type, line, fg, bg, attr) \ |
4c6fabc2 | 351 | { LINE_##type, (line), STRING_SIZE(line), (fg), (bg), (attr) } |
2e8488b4 JF |
352 | LINE_INFO |
353 | #undef LINE | |
78c70acd JF |
354 | }; |
355 | ||
2e8488b4 JF |
356 | static enum line_type |
357 | get_line_type(char *line) | |
78c70acd JF |
358 | { |
359 | int linelen = strlen(line); | |
360 | int i; | |
361 | ||
2e8488b4 JF |
362 | for (i = 0; i < ARRAY_SIZE(line_info); i++) |
363 | /* Case insensitive search matches Signed-off-by lines better. */ | |
364 | if (linelen >= line_info[i].linelen && | |
365 | !strncasecmp(line_info[i].line, line, line_info[i].linelen)) | |
366 | return line_info[i].type; | |
78c70acd | 367 | |
2e8488b4 | 368 | return LINE_DEFAULT; |
78c70acd JF |
369 | } |
370 | ||
2e8488b4 | 371 | static inline int |
78c70acd JF |
372 | get_line_attr(enum line_type type) |
373 | { | |
2e8488b4 JF |
374 | assert(type < ARRAY_SIZE(line_info)); |
375 | return COLOR_PAIR(type) | line_info[type].attr; | |
78c70acd JF |
376 | } |
377 | ||
378 | static void | |
379 | init_colors(void) | |
380 | { | |
82e78006 JF |
381 | int default_bg = COLOR_BLACK; |
382 | int default_fg = COLOR_WHITE; | |
78c70acd JF |
383 | int i; |
384 | ||
385 | start_color(); | |
386 | ||
387 | if (use_default_colors() != ERR) { | |
82e78006 JF |
388 | default_bg = -1; |
389 | default_fg = -1; | |
78c70acd JF |
390 | } |
391 | ||
392 | for (i = 0; i < ARRAY_SIZE(line_info); i++) { | |
393 | struct line_info *info = &line_info[i]; | |
82e78006 JF |
394 | int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg; |
395 | int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg; | |
78c70acd JF |
396 | |
397 | init_pair(info->type, fg, bg); | |
398 | } | |
399 | } | |
400 | ||
401 | ||
b801d8b2 JF |
402 | /* |
403 | * Viewer | |
404 | */ | |
405 | ||
406 | struct view { | |
407 | char *name; | |
408 | char *cmd; | |
fd85fef1 | 409 | char *id; |
b801d8b2 JF |
410 | |
411 | /* Rendering */ | |
22f66b0a JF |
412 | int (*read)(struct view *, char *); |
413 | int (*draw)(struct view *, unsigned int); | |
414 | size_t objsize; /* Size of objects in the line index */ | |
415 | ||
2e8488b4 JF |
416 | char cmdbuf[SIZEOF_CMD]; |
417 | ||
b801d8b2 | 418 | WINDOW *win; |
fd85fef1 | 419 | int height, width; |
b801d8b2 JF |
420 | |
421 | /* Navigation */ | |
422 | unsigned long offset; /* Offset of the window top */ | |
423 | unsigned long lineno; /* Current line number */ | |
424 | ||
425 | /* Buffering */ | |
426 | unsigned long lines; /* Total number of lines */ | |
22f66b0a | 427 | void **line; /* Line index */ |
b801d8b2 JF |
428 | |
429 | /* Loading */ | |
430 | FILE *pipe; | |
2e8488b4 | 431 | time_t start_time; |
b801d8b2 JF |
432 | }; |
433 | ||
22f66b0a JF |
434 | static int pager_draw(struct view *view, unsigned int lineno); |
435 | static int pager_read(struct view *view, char *line); | |
436 | ||
437 | static int main_draw(struct view *view, unsigned int lineno); | |
438 | static int main_read(struct view *view, char *line); | |
b801d8b2 | 439 | |
fd85fef1 | 440 | #define DIFF_CMD \ |
b801d8b2 JF |
441 | "git log --stat -n1 %s ; echo; " \ |
442 | "git diff --find-copies-harder -B -C %s^ %s" | |
443 | ||
444 | #define LOG_CMD \ | |
9d3f5834 | 445 | "git log --cc --stat -n100 %s" |
b801d8b2 | 446 | |
fd85fef1 JF |
447 | #define MAIN_CMD \ |
448 | "git log --stat --pretty=raw %s" | |
449 | ||
2e8488b4 JF |
450 | #define HELP_CMD \ |
451 | "man tig 2> /dev/null" | |
452 | ||
4c6fabc2 | 453 | /* The status window is used for polling keystrokes. */ |
b801d8b2 | 454 | static WINDOW *status_win; |
78c70acd JF |
455 | static WINDOW *title_win; |
456 | ||
4c6fabc2 JF |
457 | /* The number of loading views. Controls when nodelay should be in effect when |
458 | * polling user input. */ | |
fd85fef1 JF |
459 | static unsigned int nloading; |
460 | ||
b801d8b2 | 461 | static struct view views[] = { |
2e8488b4 JF |
462 | { "main", MAIN_CMD, ref_head, main_read, main_draw, sizeof(struct commit) }, |
463 | { "diff", DIFF_CMD, ref_commit, pager_read, pager_draw, sizeof(char) }, | |
464 | { "log", LOG_CMD, ref_head, pager_read, pager_draw, sizeof(char) }, | |
465 | { "help", HELP_CMD, ref_head, pager_read, pager_draw, sizeof(char) }, | |
b801d8b2 JF |
466 | }; |
467 | ||
4c6fabc2 | 468 | /* The display array of active views and the index of the current view. */ |
b801d8b2 | 469 | static struct view *display[ARRAY_SIZE(views)]; |
4c6fabc2 | 470 | static unsigned int current_view; |
22f66b0a | 471 | |
b801d8b2 JF |
472 | #define foreach_view(view, i) \ |
473 | for (i = 0; i < sizeof(display) && (view = display[i]); i++) | |
474 | ||
4c6fabc2 | 475 | |
b801d8b2 | 476 | static void |
82e78006 | 477 | redraw_view_from(struct view *view, int lineno) |
b801d8b2 | 478 | { |
82e78006 | 479 | assert(0 <= lineno && lineno < view->height); |
b801d8b2 | 480 | |
82e78006 | 481 | for (; lineno < view->height; lineno++) { |
22f66b0a | 482 | if (!view->draw(view, lineno)) |
fd85fef1 | 483 | break; |
b801d8b2 JF |
484 | } |
485 | ||
486 | redrawwin(view->win); | |
487 | wrefresh(view->win); | |
488 | } | |
489 | ||
b76c2afc | 490 | static void |
82e78006 JF |
491 | redraw_view(struct view *view) |
492 | { | |
493 | wclear(view->win); | |
494 | redraw_view_from(view, 0); | |
495 | } | |
496 | ||
497 | static void | |
b76c2afc JF |
498 | resize_view(struct view *view) |
499 | { | |
500 | int lines, cols; | |
501 | ||
502 | getmaxyx(stdscr, lines, cols); | |
503 | ||
504 | if (view->win) { | |
505 | mvwin(view->win, 0, 0); | |
506 | wresize(view->win, lines - 2, cols); | |
507 | ||
508 | } else { | |
509 | view->win = newwin(lines - 2, 0, 0, 0); | |
510 | if (!view->win) { | |
2e8488b4 | 511 | report("Failed to create %s view", view->name); |
b76c2afc JF |
512 | return; |
513 | } | |
514 | scrollok(view->win, TRUE); | |
515 | } | |
516 | ||
517 | getmaxyx(view->win, view->height, view->width); | |
518 | } | |
519 | ||
78c70acd | 520 | |
2e8488b4 JF |
521 | /* |
522 | * Navigation | |
523 | */ | |
524 | ||
4a2909a7 | 525 | /* Scrolling backend */ |
b801d8b2 | 526 | static void |
4a2909a7 | 527 | do_scroll_view(struct view *view, int lines) |
b801d8b2 | 528 | { |
fd85fef1 JF |
529 | /* The rendering expects the new offset. */ |
530 | view->offset += lines; | |
531 | ||
532 | assert(0 <= view->offset && view->offset < view->lines); | |
533 | assert(lines); | |
b801d8b2 | 534 | |
82e78006 | 535 | /* Redraw the whole screen if scrolling is pointless. */ |
4c6fabc2 | 536 | if (view->height < ABS(lines)) { |
b76c2afc JF |
537 | redraw_view(view); |
538 | ||
539 | } else { | |
22f66b0a | 540 | int line = lines > 0 ? view->height - lines : 0; |
82e78006 | 541 | int end = line + ABS(lines); |
fd85fef1 JF |
542 | |
543 | wscrl(view->win, lines); | |
544 | ||
22f66b0a JF |
545 | for (; line < end; line++) { |
546 | if (!view->draw(view, line)) | |
fd85fef1 JF |
547 | break; |
548 | } | |
549 | } | |
550 | ||
551 | /* Move current line into the view. */ | |
552 | if (view->lineno < view->offset) { | |
553 | view->lineno = view->offset; | |
22f66b0a | 554 | view->draw(view, 0); |
fd85fef1 JF |
555 | |
556 | } else if (view->lineno >= view->offset + view->height) { | |
557 | view->lineno = view->offset + view->height - 1; | |
22f66b0a | 558 | view->draw(view, view->lineno - view->offset); |
fd85fef1 JF |
559 | } |
560 | ||
4c6fabc2 | 561 | assert(view->offset <= view->lineno && view->lineno < view->lines); |
fd85fef1 JF |
562 | |
563 | redrawwin(view->win); | |
564 | wrefresh(view->win); | |
9d3f5834 | 565 | report(""); |
fd85fef1 | 566 | } |
78c70acd | 567 | |
4a2909a7 | 568 | /* Scroll frontend */ |
fd85fef1 JF |
569 | static void |
570 | scroll_view(struct view *view, int request) | |
571 | { | |
572 | int lines = 1; | |
b801d8b2 JF |
573 | |
574 | switch (request) { | |
4a2909a7 | 575 | case REQ_SCROLL_PAGE_DOWN: |
fd85fef1 | 576 | lines = view->height; |
4a2909a7 | 577 | case REQ_SCROLL_LINE_DOWN: |
b801d8b2 | 578 | if (view->offset + lines > view->lines) |
bde3653a | 579 | lines = view->lines - view->offset; |
b801d8b2 | 580 | |
fd85fef1 | 581 | if (lines == 0 || view->offset + view->height >= view->lines) { |
2e8488b4 | 582 | report("Already at last line"); |
b801d8b2 JF |
583 | return; |
584 | } | |
585 | break; | |
586 | ||
4a2909a7 | 587 | case REQ_SCROLL_PAGE_UP: |
fd85fef1 | 588 | lines = view->height; |
4a2909a7 | 589 | case REQ_SCROLL_LINE_UP: |
b801d8b2 JF |
590 | if (lines > view->offset) |
591 | lines = view->offset; | |
592 | ||
593 | if (lines == 0) { | |
2e8488b4 | 594 | report("Already at first line"); |
b801d8b2 JF |
595 | return; |
596 | } | |
597 | ||
fd85fef1 | 598 | lines = -lines; |
b801d8b2 | 599 | break; |
b801d8b2 JF |
600 | } |
601 | ||
4a2909a7 | 602 | do_scroll_view(view, lines); |
fd85fef1 | 603 | } |
b801d8b2 | 604 | |
4a2909a7 | 605 | /* Cursor moving */ |
fd85fef1 | 606 | static void |
4a2909a7 | 607 | move_view(struct view *view, int request) |
fd85fef1 JF |
608 | { |
609 | int steps; | |
b801d8b2 | 610 | |
fd85fef1 | 611 | switch (request) { |
4a2909a7 | 612 | case REQ_MOVE_FIRST_LINE: |
78c70acd JF |
613 | steps = -view->lineno; |
614 | break; | |
615 | ||
4a2909a7 | 616 | case REQ_MOVE_LAST_LINE: |
78c70acd JF |
617 | steps = view->lines - view->lineno - 1; |
618 | break; | |
619 | ||
4a2909a7 | 620 | case REQ_MOVE_PAGE_UP: |
78c70acd JF |
621 | steps = view->height > view->lineno |
622 | ? -view->lineno : -view->height; | |
623 | break; | |
624 | ||
4a2909a7 | 625 | case REQ_MOVE_PAGE_DOWN: |
78c70acd JF |
626 | steps = view->lineno + view->height >= view->lines |
627 | ? view->lines - view->lineno - 1 : view->height; | |
628 | break; | |
629 | ||
4a2909a7 | 630 | case REQ_MOVE_UP: |
fd85fef1 JF |
631 | steps = -1; |
632 | break; | |
b801d8b2 | 633 | |
4a2909a7 | 634 | case REQ_MOVE_DOWN: |
fd85fef1 JF |
635 | steps = 1; |
636 | break; | |
78c70acd | 637 | } |
b801d8b2 | 638 | |
4c6fabc2 | 639 | if (steps <= 0 && view->lineno == 0) { |
2e8488b4 | 640 | report("Already at first line"); |
78c70acd | 641 | return; |
b801d8b2 | 642 | |
4c6fabc2 | 643 | } else if (steps >= 0 && view->lineno + 1 == view->lines) { |
2e8488b4 | 644 | report("Already at last line"); |
78c70acd | 645 | return; |
fd85fef1 JF |
646 | } |
647 | ||
4c6fabc2 | 648 | /* Move the current line */ |
fd85fef1 | 649 | view->lineno += steps; |
4c6fabc2 JF |
650 | assert(0 <= view->lineno && view->lineno < view->lines); |
651 | ||
652 | /* Repaint the old "current" line if we be scrolling */ | |
2e8488b4 JF |
653 | if (ABS(steps) < view->height) { |
654 | int prev_lineno = view->lineno - steps - view->offset; | |
655 | ||
656 | wmove(view->win, prev_lineno, 0); | |
657 | wclrtoeol(view->win); | |
4c6fabc2 | 658 | view->draw(view, view->lineno - steps - view->offset); |
2e8488b4 | 659 | } |
fd85fef1 | 660 | |
4c6fabc2 | 661 | /* Check whether the view needs to be scrolled */ |
fd85fef1 JF |
662 | if (view->lineno < view->offset || |
663 | view->lineno >= view->offset + view->height) { | |
664 | if (steps < 0 && -steps > view->offset) { | |
665 | steps = -view->offset; | |
b76c2afc JF |
666 | |
667 | } else if (steps > 0) { | |
668 | if (view->lineno == view->lines - 1 && | |
669 | view->lines > view->height) { | |
670 | steps = view->lines - view->offset - 1; | |
671 | if (steps >= view->height) | |
672 | steps -= view->height - 1; | |
673 | } | |
b801d8b2 | 674 | } |
78c70acd | 675 | |
4a2909a7 | 676 | do_scroll_view(view, steps); |
fd85fef1 | 677 | return; |
b801d8b2 JF |
678 | } |
679 | ||
4c6fabc2 | 680 | /* Draw the current line */ |
22f66b0a | 681 | view->draw(view, view->lineno - view->offset); |
fd85fef1 | 682 | |
b801d8b2 JF |
683 | redrawwin(view->win); |
684 | wrefresh(view->win); | |
9d3f5834 | 685 | report(""); |
b801d8b2 JF |
686 | } |
687 | ||
b801d8b2 | 688 | |
2e8488b4 JF |
689 | /* |
690 | * Incremental updating | |
691 | */ | |
b801d8b2 JF |
692 | |
693 | static bool | |
694 | begin_update(struct view *view) | |
695 | { | |
2e8488b4 | 696 | char *id = view->id; |
fd85fef1 | 697 | |
2e8488b4 JF |
698 | if (snprintf(view->cmdbuf, sizeof(view->cmdbuf), view->cmd, |
699 | id, id, id) < sizeof(view->cmdbuf)) | |
700 | view->pipe = popen(view->cmdbuf, "r"); | |
b801d8b2 | 701 | |
2e8488b4 JF |
702 | if (!view->pipe) |
703 | return FALSE; | |
b801d8b2 | 704 | |
2e8488b4 JF |
705 | if (nloading++ == 0) |
706 | nodelay(status_win, TRUE); | |
b801d8b2 JF |
707 | |
708 | view->offset = 0; | |
709 | view->lines = 0; | |
710 | view->lineno = 0; | |
711 | ||
2e8488b4 JF |
712 | if (view->line) { |
713 | int i; | |
714 | ||
715 | for (i = 0; i < view->lines; i++) | |
716 | if (view->line[i]) | |
717 | free(view->line[i]); | |
718 | ||
719 | free(view->line); | |
720 | view->line = NULL; | |
721 | } | |
722 | ||
723 | view->start_time = time(NULL); | |
724 | ||
b801d8b2 JF |
725 | return TRUE; |
726 | } | |
727 | ||
728 | static void | |
729 | end_update(struct view *view) | |
730 | { | |
b801d8b2 JF |
731 | if (nloading-- == 1) |
732 | nodelay(status_win, FALSE); | |
2e8488b4 JF |
733 | |
734 | pclose(view->pipe); | |
735 | view->pipe = NULL; | |
b801d8b2 JF |
736 | } |
737 | ||
738 | static int | |
739 | update_view(struct view *view) | |
740 | { | |
741 | char buffer[BUFSIZ]; | |
742 | char *line; | |
22f66b0a | 743 | void **tmp; |
82e78006 JF |
744 | /* The number of lines to read. If too low it will cause too much |
745 | * redrawing (and possible flickering), if too high responsiveness | |
746 | * will suffer. */ | |
fd85fef1 | 747 | int lines = view->height; |
82e78006 | 748 | int redraw_from = -1; |
b801d8b2 JF |
749 | |
750 | if (!view->pipe) | |
751 | return TRUE; | |
752 | ||
82e78006 JF |
753 | /* Only redraw if lines are visible. */ |
754 | if (view->offset + view->height >= view->lines) | |
755 | redraw_from = view->lines - view->offset; | |
b801d8b2 JF |
756 | |
757 | tmp = realloc(view->line, sizeof(*view->line) * (view->lines + lines)); | |
758 | if (!tmp) | |
759 | goto alloc_error; | |
760 | ||
761 | view->line = tmp; | |
762 | ||
763 | while ((line = fgets(buffer, sizeof(buffer), view->pipe))) { | |
764 | int linelen; | |
765 | ||
b801d8b2 JF |
766 | linelen = strlen(line); |
767 | if (linelen) | |
768 | line[linelen - 1] = 0; | |
769 | ||
22f66b0a | 770 | if (!view->read(view, line)) |
b801d8b2 | 771 | goto alloc_error; |
fd85fef1 JF |
772 | |
773 | if (lines-- == 1) | |
774 | break; | |
b801d8b2 JF |
775 | } |
776 | ||
4a2909a7 JF |
777 | /* CPU hogilicious! */ |
778 | update_title(); | |
779 | ||
82e78006 JF |
780 | if (redraw_from >= 0) { |
781 | /* If this is an incremental update, redraw the previous line | |
782 | * since for commits some members could have changed. */ | |
783 | if (redraw_from > 0) | |
784 | redraw_from--; | |
785 | ||
786 | /* Incrementally draw avoids flickering. */ | |
787 | redraw_view_from(view, redraw_from); | |
4c6fabc2 | 788 | } |
b801d8b2 JF |
789 | |
790 | if (ferror(view->pipe)) { | |
2e8488b4 | 791 | report("Failed to read %s: %s", view->cmd, strerror(errno)); |
b801d8b2 JF |
792 | goto end; |
793 | ||
794 | } else if (feof(view->pipe)) { | |
2e8488b4 JF |
795 | time_t secs = time(NULL) - view->start_time; |
796 | ||
797 | if (view == &views[REQ_VIEW_HELP]){ | |
798 | report(HELP); | |
799 | goto end; | |
800 | } | |
801 | ||
802 | report("Loaded %d lines in %ld second%s", view->lines, secs, | |
803 | secs == 1 ? "" : "s"); | |
b801d8b2 JF |
804 | goto end; |
805 | } | |
806 | ||
807 | return TRUE; | |
808 | ||
809 | alloc_error: | |
2e8488b4 | 810 | report("Allocation failure"); |
b801d8b2 JF |
811 | |
812 | end: | |
813 | end_update(view); | |
814 | return FALSE; | |
815 | } | |
816 | ||
b801d8b2 JF |
817 | static struct view * |
818 | switch_view(struct view *prev, int request) | |
819 | { | |
4a2909a7 | 820 | struct view *view = &views[request]; |
b801d8b2 JF |
821 | struct view *displayed; |
822 | int i; | |
823 | ||
2e8488b4 JF |
824 | if (prev && prev->pipe) |
825 | end_update(prev); | |
826 | ||
b801d8b2 JF |
827 | if (view == prev) { |
828 | foreach_view (displayed, i) ; | |
829 | ||
830 | if (i == 1) | |
2e8488b4 | 831 | report("Already in %s view", view->name); |
b801d8b2 JF |
832 | else |
833 | report("FIXME: Maximize"); | |
834 | ||
835 | return view; | |
836 | ||
837 | } else { | |
838 | foreach_view (displayed, i) { | |
839 | if (view == displayed) { | |
840 | current_view = i; | |
fd85fef1 | 841 | report("new current view"); |
b801d8b2 JF |
842 | return view; |
843 | } | |
844 | } | |
845 | } | |
846 | ||
847 | if (!view->win) | |
848 | resize_view(view); | |
849 | ||
850 | /* Reload */ | |
851 | ||
b801d8b2 | 852 | if (begin_update(view)) { |
2e8488b4 JF |
853 | /* Clear the old view and let the incremental updating refill |
854 | * the screen. */ | |
855 | display[current_view] = view; | |
856 | wclear(view->win); | |
857 | report("Loading..."); | |
b801d8b2 JF |
858 | } |
859 | ||
860 | return view; | |
861 | } | |
862 | ||
863 | ||
4a2909a7 | 864 | /* Process keystrokes */ |
b801d8b2 JF |
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) { | |
4a2909a7 JF |
872 | case REQ_MOVE_UP: |
873 | case REQ_MOVE_DOWN: | |
874 | case REQ_MOVE_PAGE_UP: | |
875 | case REQ_MOVE_PAGE_DOWN: | |
876 | case REQ_MOVE_FIRST_LINE: | |
877 | case REQ_MOVE_LAST_LINE: | |
fd85fef1 | 878 | if (view) |
4a2909a7 | 879 | move_view(view, request); |
fd85fef1 JF |
880 | break; |
881 | ||
4a2909a7 JF |
882 | case REQ_SCROLL_LINE_DOWN: |
883 | case REQ_SCROLL_LINE_UP: | |
884 | case REQ_SCROLL_PAGE_DOWN: | |
885 | case REQ_SCROLL_PAGE_UP: | |
b801d8b2 JF |
886 | if (view) |
887 | scroll_view(view, request); | |
888 | break; | |
889 | ||
4a2909a7 | 890 | case REQ_VIEW_MAIN: |
4a2909a7 | 891 | case REQ_VIEW_DIFF: |
2e8488b4 JF |
892 | case REQ_VIEW_LOG: |
893 | case REQ_VIEW_HELP: | |
b801d8b2 JF |
894 | view = switch_view(view, request); |
895 | break; | |
896 | ||
4a2909a7 | 897 | case REQ_TOGGLE_LINE_NUMBERS: |
b76c2afc | 898 | opt_line_number = !opt_line_number; |
4a2909a7 JF |
899 | if (view) |
900 | redraw_view(view); | |
b801d8b2 JF |
901 | break; |
902 | ||
4a2909a7 | 903 | case REQ_STOP_LOADING: |
2e8488b4 JF |
904 | foreach_view (view, i) |
905 | if (view->pipe) | |
b801d8b2 | 906 | end_update(view); |
b801d8b2 JF |
907 | break; |
908 | ||
4a2909a7 | 909 | case REQ_SHOW_VERSION: |
2e8488b4 | 910 | report("Version: %s", VERSION); |
b801d8b2 JF |
911 | return TRUE; |
912 | ||
4a2909a7 JF |
913 | case REQ_SCREEN_REDRAW: |
914 | redraw_view(view); | |
915 | break; | |
916 | ||
917 | case REQ_SCREEN_UPDATE: | |
b801d8b2 JF |
918 | doupdate(); |
919 | return TRUE; | |
920 | ||
921 | case REQ_QUIT: | |
922 | return FALSE; | |
923 | ||
924 | default: | |
2e8488b4 | 925 | /* An unknown key will show most commonly used commands. */ |
b801d8b2 JF |
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) |
2e8488b4 | 954 | string_copy(ref_commit, 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 | ||
2e8488b4 | 968 | if (real_lineno == 1 || (real_lineno % opt_num_interval) == 0) |
82e78006 | 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 { | |
2e8488b4 JF |
993 | #if 0 |
994 | /* NOTE: Code for only highlighting the text on the cursor line. | |
995 | * Kept since I've not yet decided whether to highlight the | |
996 | * entire line or not. --fonseca */ | |
b76c2afc JF |
997 | /* No empty lines makes cursor drawing and clearing implicit. */ |
998 | if (!*line) | |
4c6fabc2 | 999 | line = " ", linelen = 1; |
2e8488b4 | 1000 | #endif |
4c6fabc2 | 1001 | mvwaddnstr(view->win, lineno, 0, line, linelen); |
b76c2afc | 1002 | } |
b801d8b2 | 1003 | |
2e8488b4 JF |
1004 | /* Paint the rest of the line if it's the cursor line. */ |
1005 | if (type == LINE_CURSOR) | |
1006 | wchgat(view->win, -1, 0, type, NULL); | |
1007 | ||
b801d8b2 JF |
1008 | return TRUE; |
1009 | } | |
1010 | ||
22f66b0a JF |
1011 | static int |
1012 | pager_read(struct view *view, char *line) | |
1013 | { | |
1014 | view->line[view->lines] = strdup(line); | |
1015 | if (!view->line[view->lines]) | |
1016 | return FALSE; | |
1017 | ||
1018 | view->lines++; | |
1019 | return TRUE; | |
1020 | } | |
1021 | ||
1022 | static int | |
1023 | main_draw(struct view *view, unsigned int lineno) | |
1024 | { | |
2e8488b4 | 1025 | char buf[DATE_COLS + 1]; |
22f66b0a | 1026 | struct commit *commit; |
78c70acd | 1027 | enum line_type type; |
b76c2afc JF |
1028 | int cols = 0; |
1029 | size_t timelen; | |
22f66b0a JF |
1030 | |
1031 | if (view->offset + lineno >= view->lines) | |
1032 | return FALSE; | |
1033 | ||
1034 | commit = view->line[view->offset + lineno]; | |
4c6fabc2 JF |
1035 | if (!*commit->author) |
1036 | return FALSE; | |
22f66b0a | 1037 | |
22f66b0a | 1038 | if (view->offset + lineno == view->lineno) { |
2e8488b4 | 1039 | string_copy(ref_commit, commit->id); |
78c70acd JF |
1040 | type = LINE_CURSOR; |
1041 | } else { | |
b76c2afc JF |
1042 | type = LINE_MAIN_COMMIT; |
1043 | } | |
1044 | ||
1045 | wmove(view->win, lineno, cols); | |
1046 | wattrset(view->win, get_line_attr(LINE_MAIN_DATE)); | |
1047 | ||
4c6fabc2 | 1048 | timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time); |
b76c2afc | 1049 | waddnstr(view->win, buf, timelen); |
4c6fabc2 | 1050 | waddstr(view->win, " "); |
b76c2afc | 1051 | |
4c6fabc2 | 1052 | cols += DATE_COLS; |
b76c2afc JF |
1053 | wmove(view->win, lineno, cols); |
1054 | wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR)); | |
1055 | ||
1056 | if (strlen(commit->author) > 19) { | |
1057 | waddnstr(view->win, commit->author, 18); | |
1058 | wattrset(view->win, get_line_attr(LINE_MAIN_DELIM)); | |
1059 | waddch(view->win, '~'); | |
1060 | } else { | |
1061 | waddstr(view->win, commit->author); | |
22f66b0a JF |
1062 | } |
1063 | ||
b76c2afc JF |
1064 | cols += 20; |
1065 | wattrset(view->win, A_NORMAL); | |
1066 | mvwaddch(view->win, lineno, cols, ACS_LTEE); | |
78c70acd | 1067 | wattrset(view->win, get_line_attr(type)); |
b76c2afc | 1068 | mvwaddstr(view->win, lineno, cols + 2, commit->title); |
22f66b0a JF |
1069 | wattrset(view->win, A_NORMAL); |
1070 | ||
1071 | return TRUE; | |
1072 | } | |
1073 | ||
4c6fabc2 | 1074 | /* Reads git log --pretty=raw output and parses it into the commit struct. */ |
22f66b0a JF |
1075 | static int |
1076 | main_read(struct view *view, char *line) | |
1077 | { | |
78c70acd JF |
1078 | enum line_type type = get_line_type(line); |
1079 | struct commit *commit; | |
22f66b0a | 1080 | |
78c70acd JF |
1081 | switch (type) { |
1082 | case LINE_COMMIT: | |
22f66b0a JF |
1083 | commit = calloc(1, sizeof(struct commit)); |
1084 | if (!commit) | |
1085 | return FALSE; | |
1086 | ||
4c6fabc2 | 1087 | line += STRING_SIZE("commit "); |
b76c2afc | 1088 | |
22f66b0a | 1089 | view->line[view->lines++] = commit; |
82e78006 | 1090 | string_copy(commit->id, line); |
78c70acd | 1091 | break; |
22f66b0a | 1092 | |
b76c2afc JF |
1093 | case LINE_AUTHOR_IDENT: |
1094 | { | |
4c6fabc2 | 1095 | char *ident = line + STRING_SIZE("author "); |
b76c2afc JF |
1096 | char *end = strchr(ident, '<'); |
1097 | ||
1098 | if (end) { | |
1099 | for (; end > ident && isspace(end[-1]); end--) ; | |
1100 | *end = 0; | |
1101 | } | |
1102 | ||
1103 | commit = view->line[view->lines - 1]; | |
82e78006 | 1104 | string_copy(commit->author, ident); |
b76c2afc | 1105 | |
4c6fabc2 | 1106 | /* Parse epoch and timezone */ |
b76c2afc JF |
1107 | if (end) { |
1108 | char *secs = strchr(end + 1, '>'); | |
1109 | char *zone; | |
1110 | time_t time; | |
1111 | ||
1112 | if (!secs || secs[1] != ' ') | |
1113 | break; | |
1114 | ||
1115 | secs += 2; | |
1116 | time = (time_t) atol(secs); | |
1117 | zone = strchr(secs, ' '); | |
4c6fabc2 | 1118 | if (zone && strlen(zone) == STRING_SIZE(" +0700")) { |
b76c2afc JF |
1119 | long tz; |
1120 | ||
1121 | zone++; | |
1122 | tz = ('0' - zone[1]) * 60 * 60 * 10; | |
1123 | tz += ('0' - zone[2]) * 60 * 60; | |
1124 | tz += ('0' - zone[3]) * 60; | |
1125 | tz += ('0' - zone[4]) * 60; | |
1126 | ||
1127 | if (zone[0] == '-') | |
1128 | tz = -tz; | |
1129 | ||
1130 | time -= tz; | |
1131 | } | |
1132 | gmtime_r(&time, &commit->time); | |
1133 | } | |
1134 | break; | |
1135 | } | |
78c70acd | 1136 | default: |
2e8488b4 JF |
1137 | /* We should only ever end up here if there has already been a |
1138 | * commit line, however, be safe. */ | |
1139 | if (view->lines == 0) | |
1140 | break; | |
1141 | ||
1142 | /* Fill in the commit title if it has not already been set. */ | |
78c70acd | 1143 | commit = view->line[view->lines - 1]; |
2e8488b4 JF |
1144 | if (commit->title[0]) |
1145 | break; | |
1146 | ||
1147 | /* Require titles to start with a non-space character at the | |
1148 | * offset used by git log. */ | |
1149 | if (strncmp(line, " ", 4) || | |
82e78006 JF |
1150 | isspace(line[5])) |
1151 | break; | |
1152 | ||
1153 | string_copy(commit->title, line + 4); | |
22f66b0a JF |
1154 | } |
1155 | ||
1156 | return TRUE; | |
1157 | } | |
1158 | ||
1159 | ||
b801d8b2 JF |
1160 | /* |
1161 | * Main | |
1162 | */ | |
1163 | ||
1164 | static void | |
1165 | quit(int sig) | |
1166 | { | |
1167 | if (status_win) | |
1168 | delwin(status_win); | |
78c70acd JF |
1169 | if (title_win) |
1170 | delwin(title_win); | |
b801d8b2 JF |
1171 | endwin(); |
1172 | ||
1173 | /* FIXME: Shutdown gracefully. */ | |
1174 | ||
1175 | exit(0); | |
1176 | } | |
1177 | ||
1178 | static void die(const char *err, ...) | |
1179 | { | |
1180 | va_list args; | |
1181 | ||
1182 | endwin(); | |
1183 | ||
1184 | va_start(args, err); | |
1185 | fputs("tig: ", stderr); | |
1186 | vfprintf(stderr, err, args); | |
1187 | fputs("\n", stderr); | |
1188 | va_end(args); | |
1189 | ||
1190 | exit(1); | |
1191 | } | |
1192 | ||
1193 | static void | |
4a2909a7 | 1194 | update_title(void) |
b801d8b2 | 1195 | { |
9d3f5834 | 1196 | struct view *view = display[current_view]; |
b801d8b2 | 1197 | |
2e8488b4 JF |
1198 | assert(view); |
1199 | ||
b76c2afc JF |
1200 | werase(title_win); |
1201 | wmove(title_win, 0, 0); | |
2e8488b4 JF |
1202 | |
1203 | /* [main] ref: 334b506... - line 6 of 4383 (0%) */ | |
1204 | wprintw(title_win, "[%s] ref: %s", view->name, ref_commit); | |
1205 | if (view->lines) { | |
1206 | wprintw(title_win, " - line %d of %d (%d%%)", | |
1207 | view->lineno + 1, | |
1208 | view->lines, | |
1209 | (view->lineno + 1) * 100 / view->lines); | |
9d3f5834 | 1210 | } |
2e8488b4 | 1211 | |
b76c2afc | 1212 | wrefresh(title_win); |
4a2909a7 JF |
1213 | } |
1214 | ||
2e8488b4 | 1215 | /* Update status and title window. */ |
4a2909a7 JF |
1216 | static void |
1217 | report(const char *msg, ...) | |
1218 | { | |
1219 | va_list args; | |
b76c2afc | 1220 | |
b801d8b2 JF |
1221 | va_start(args, msg); |
1222 | ||
2e8488b4 JF |
1223 | /* Update the title window first, so the cursor ends up in the status |
1224 | * window. */ | |
4a2909a7 JF |
1225 | update_title(); |
1226 | ||
b801d8b2 JF |
1227 | werase(status_win); |
1228 | wmove(status_win, 0, 0); | |
b801d8b2 JF |
1229 | vwprintw(status_win, msg, args); |
1230 | wrefresh(status_win); | |
1231 | ||
1232 | va_end(args); | |
b801d8b2 JF |
1233 | } |
1234 | ||
1235 | int | |
1236 | main(int argc, char *argv[]) | |
1237 | { | |
b801d8b2 | 1238 | int x, y; |
b76c2afc JF |
1239 | int request; |
1240 | int git_cmd; | |
b801d8b2 JF |
1241 | |
1242 | signal(SIGINT, quit); | |
1243 | ||
b76c2afc JF |
1244 | git_cmd = parse_options(argc, argv); |
1245 | if (git_cmd < 0) | |
1246 | return 0; | |
82e78006 | 1247 | if (git_cmd < argc) { |
2e8488b4 | 1248 | die("Too many options"); |
82e78006 | 1249 | } |
b76c2afc JF |
1250 | |
1251 | request = opt_request; | |
1252 | ||
2e8488b4 JF |
1253 | initscr(); /* Initialize the curses library */ |
1254 | nonl(); /* Tell curses not to do NL->CR/NL on output */ | |
1255 | cbreak(); /* Take input chars one at a time, no wait for \n */ | |
1256 | noecho(); /* Don't echo input */ | |
b801d8b2 | 1257 | leaveok(stdscr, TRUE); |
b801d8b2 JF |
1258 | |
1259 | if (has_colors()) | |
1260 | init_colors(); | |
1261 | ||
1262 | getmaxyx(stdscr, y, x); | |
1263 | status_win = newwin(1, 0, y - 1, 0); | |
1264 | if (!status_win) | |
1265 | die("Failed to create status window"); | |
1266 | ||
78c70acd JF |
1267 | title_win = newwin(1, 0, y - 2, 0); |
1268 | if (!title_win) | |
1269 | die("Failed to create title window"); | |
1270 | ||
b801d8b2 JF |
1271 | /* Enable keyboard mapping */ |
1272 | keypad(status_win, TRUE); | |
78c70acd JF |
1273 | wbkgdset(status_win, get_line_attr(LINE_STATUS)); |
1274 | wbkgdset(title_win, get_line_attr(LINE_TITLE)); | |
b801d8b2 JF |
1275 | |
1276 | while (view_driver(display[current_view], request)) { | |
1277 | struct view *view; | |
1278 | int i; | |
1279 | ||
1280 | foreach_view (view, i) { | |
1281 | if (view->pipe) { | |
1282 | update_view(view); | |
1283 | } | |
1284 | } | |
1285 | ||
1286 | /* Refresh, accept single keystroke of input */ | |
1287 | request = wgetch(status_win); | |
1288 | if (request == KEY_RESIZE) { | |
1289 | int lines, cols; | |
1290 | ||
1291 | getmaxyx(stdscr, lines, cols); | |
78c70acd | 1292 | |
b801d8b2 JF |
1293 | mvwin(status_win, lines - 1, 0); |
1294 | wresize(status_win, 1, cols - 1); | |
78c70acd JF |
1295 | |
1296 | mvwin(title_win, lines - 2, 0); | |
1297 | wresize(title_win, 1, cols - 1); | |
b801d8b2 JF |
1298 | } |
1299 | } | |
1300 | ||
1301 | quit(0); | |
1302 | ||
1303 | return 0; | |
1304 | } | |
1305 | ||
1306 | /** | |
4c6fabc2 JF |
1307 | * TODO |
1308 | * ---- | |
1309 | * Features that should be explored. | |
1310 | * | |
82e78006 JF |
1311 | * - Dynamic scaling of line number indentation. |
1312 | * | |
1313 | * - Proper command line handling; ability to take the command that should be | |
1314 | * shown. Example: | |
4c6fabc2 JF |
1315 | * |
1316 | * $ tig log -p | |
1317 | * | |
82e78006 JF |
1318 | * - Internal command line (exmode-inspired) which allows to specify what git |
1319 | * log or git diff command to run. Example: | |
4c6fabc2 JF |
1320 | * |
1321 | * :log -p | |
1322 | * | |
1323 | * - Proper resizing support. I am yet to figure out whether catching SIGWINCH | |
1324 | * is preferred over using ncurses' built-in support for resizing. | |
1325 | * | |
1326 | * - Locale support. | |
1327 | * | |
b801d8b2 JF |
1328 | * COPYRIGHT |
1329 | * --------- | |
4a2909a7 | 1330 | * Copyright (c) Jonas Fonseca <fonseca@diku.dk>, 2006 |
b801d8b2 JF |
1331 | * |
1332 | * This program is free software; you can redistribute it and/or modify | |
1333 | * it under the terms of the GNU General Public License as published by | |
1334 | * the Free Software Foundation; either version 2 of the License, or | |
1335 | * (at your option) any later version. | |
1336 | * | |
1337 | * SEE ALSO | |
1338 | * -------- | |
4c6fabc2 | 1339 | * [verse] |
b801d8b2 JF |
1340 | * link:http://www.kernel.org/pub/software/scm/git/docs/[git(7)], |
1341 | * link:http://www.kernel.org/pub/software/scm/cogito/docs/[cogito(7)] | |
4c6fabc2 JF |
1342 | * gitk(1): git repository browser written using tcl/tk, |
1343 | * gitview(1): git repository browser written using python/gtk. | |
b801d8b2 | 1344 | **/ |