Commit | Line | Data |
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4a2909a7 JF |
1 | /* Copyright (c) 2006 Jonas Fonseca <fonseca@diku.dk> |
2 | * See license info at the bottom. */ | |
b801d8b2 JF |
3 | /** |
4 | * TIG(1) | |
5 | * ====== | |
6 | * | |
7 | * NAME | |
8 | * ---- | |
9 | * tig - text-mode interface for git | |
10 | * | |
11 | * SYNOPSIS | |
12 | * -------- | |
13 | * [verse] | |
03a93dbb JF |
14 | * tig [options] |
15 | * tig [options] [--] [git log options] | |
b76c2afc JF |
16 | * tig [options] log [git log options] |
17 | * tig [options] diff [git diff options] | |
4c6fabc2 | 18 | * tig [options] < [git log or git diff output] |
b801d8b2 JF |
19 | * |
20 | * DESCRIPTION | |
21 | * ----------- | |
22 | * Browse changes in a git repository. | |
b801d8b2 JF |
23 | **/ |
24 | ||
b801d8b2 JF |
25 | #ifndef DEBUG |
26 | #define NDEBUG | |
27 | #endif | |
28 | ||
b76c2afc JF |
29 | #ifndef VERSION |
30 | #define VERSION "tig-0.1" | |
31 | #endif | |
32 | ||
22f66b0a | 33 | #include <assert.h> |
4c6fabc2 | 34 | #include <errno.h> |
22f66b0a JF |
35 | #include <ctype.h> |
36 | #include <signal.h> | |
b801d8b2 | 37 | #include <stdarg.h> |
b801d8b2 | 38 | #include <stdio.h> |
22f66b0a | 39 | #include <stdlib.h> |
b801d8b2 | 40 | #include <string.h> |
6908bdbd | 41 | #include <unistd.h> |
b76c2afc | 42 | #include <time.h> |
b801d8b2 JF |
43 | |
44 | #include <curses.h> | |
b801d8b2 JF |
45 | |
46 | static void die(const char *err, ...); | |
47 | static void report(const char *msg, ...); | |
6b161b31 JF |
48 | static void set_nonblocking_input(int boolean); |
49 | ||
50 | #define ABS(x) ((x) >= 0 ? (x) : -(x)) | |
51 | #define MIN(x, y) ((x) < (y) ? (x) : (y)) | |
52 | ||
53 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) | |
54 | #define STRING_SIZE(x) (sizeof(x) - 1) | |
b76c2afc | 55 | |
2e8488b4 JF |
56 | #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */ |
57 | #define SIZEOF_CMD 1024 /* Size of command buffer. */ | |
b801d8b2 | 58 | |
82e78006 JF |
59 | /* This color name can be used to refer to the default term colors. */ |
60 | #define COLOR_DEFAULT (-1) | |
78c70acd | 61 | |
82e78006 | 62 | /* The format and size of the date column in the main view. */ |
4c6fabc2 | 63 | #define DATE_FORMAT "%Y-%m-%d %H:%M" |
6b161b31 | 64 | #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ") |
4c6fabc2 | 65 | |
a28bcc22 | 66 | /* The default interval between line numbers. */ |
4a2909a7 | 67 | #define NUMBER_INTERVAL 1 |
82e78006 | 68 | |
a28bcc22 JF |
69 | #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3) |
70 | ||
4a2909a7 | 71 | /* Some ascii-shorthands that fit into the ncurses namespace. */ |
a28bcc22 JF |
72 | #define KEY_TAB '\t' |
73 | #define KEY_RETURN '\r' | |
4a2909a7 JF |
74 | #define KEY_ESC 27 |
75 | ||
a28bcc22 | 76 | /* User action requests. */ |
4a2909a7 | 77 | enum request { |
a28bcc22 JF |
78 | /* Offset all requests to avoid conflicts with ncurses getch values. */ |
79 | REQ_OFFSET = KEY_MAX + 1, | |
80 | ||
4a2909a7 | 81 | /* XXX: Keep the view request first and in sync with views[]. */ |
2e8488b4 | 82 | REQ_VIEW_MAIN, |
4a2909a7 JF |
83 | REQ_VIEW_DIFF, |
84 | REQ_VIEW_LOG, | |
2e8488b4 | 85 | REQ_VIEW_HELP, |
6908bdbd | 86 | REQ_VIEW_PAGER, |
4a2909a7 | 87 | |
6b161b31 | 88 | REQ_ENTER, |
03a93dbb JF |
89 | REQ_QUIT, |
90 | REQ_PROMPT, | |
4a2909a7 JF |
91 | REQ_SCREEN_REDRAW, |
92 | REQ_SCREEN_UPDATE, | |
03a93dbb JF |
93 | REQ_SHOW_VERSION, |
94 | REQ_STOP_LOADING, | |
4a2909a7 | 95 | REQ_TOGGLE_LINE_NUMBERS, |
03a93dbb | 96 | REQ_VIEW_NEXT, |
4a2909a7 JF |
97 | |
98 | REQ_MOVE_UP, | |
99 | REQ_MOVE_DOWN, | |
100 | REQ_MOVE_PAGE_UP, | |
101 | REQ_MOVE_PAGE_DOWN, | |
102 | REQ_MOVE_FIRST_LINE, | |
103 | REQ_MOVE_LAST_LINE, | |
104 | ||
105 | REQ_SCROLL_LINE_UP, | |
106 | REQ_SCROLL_LINE_DOWN, | |
107 | REQ_SCROLL_PAGE_UP, | |
108 | REQ_SCROLL_PAGE_DOWN, | |
109 | }; | |
110 | ||
4c6fabc2 | 111 | struct commit { |
a28bcc22 | 112 | char id[41]; /* SHA1 ID. */ |
6b161b31 | 113 | char title[75]; /* The first line of the commit message. */ |
a28bcc22 JF |
114 | char author[75]; /* The author of the commit. */ |
115 | struct tm time; /* Date from the author ident. */ | |
4c6fabc2 JF |
116 | }; |
117 | ||
03a93dbb JF |
118 | /* |
119 | * String helpers | |
120 | */ | |
78c70acd | 121 | |
82e78006 JF |
122 | static inline void |
123 | string_ncopy(char *dst, char *src, int dstlen) | |
124 | { | |
125 | strncpy(dst, src, dstlen - 1); | |
126 | dst[dstlen - 1] = 0; | |
03a93dbb | 127 | |
82e78006 JF |
128 | } |
129 | ||
130 | /* Shorthand for safely copying into a fixed buffer. */ | |
131 | #define string_copy(dst, src) \ | |
132 | string_ncopy(dst, src, sizeof(dst)) | |
133 | ||
03a93dbb JF |
134 | /* Shell quoting |
135 | * | |
136 | * NOTE: The following is a slightly modified copy of the git project's shell | |
137 | * quoting routines found in the quote.c file. | |
138 | * | |
139 | * Help to copy the thing properly quoted for the shell safety. any single | |
140 | * quote is replaced with '\'', any exclamation point is replaced with '\!', | |
141 | * and the whole thing is enclosed in a | |
142 | * | |
143 | * E.g. | |
144 | * original sq_quote result | |
145 | * name ==> name ==> 'name' | |
146 | * a b ==> a b ==> 'a b' | |
147 | * a'b ==> a'\''b ==> 'a'\''b' | |
148 | * a!b ==> a'\!'b ==> 'a'\!'b' | |
149 | */ | |
150 | ||
151 | static size_t | |
152 | sq_quote(char buf[SIZEOF_CMD], size_t bufsize, const char *src) | |
153 | { | |
154 | char c; | |
155 | ||
156 | #define BUFPUT(x) ( (bufsize < SIZEOF_CMD) && (buf[bufsize++] = (x)) ) | |
157 | ||
158 | BUFPUT('\''); | |
159 | while ((c = *src++)) { | |
160 | if (c == '\'' || c == '!') { | |
161 | BUFPUT('\''); | |
162 | BUFPUT('\\'); | |
163 | BUFPUT(c); | |
164 | BUFPUT('\''); | |
165 | } else { | |
166 | BUFPUT(c); | |
167 | } | |
168 | } | |
169 | BUFPUT('\''); | |
170 | ||
171 | return bufsize; | |
172 | } | |
173 | ||
82e78006 | 174 | |
b76c2afc JF |
175 | /** |
176 | * OPTIONS | |
177 | * ------- | |
178 | **/ | |
179 | ||
2e8488b4 JF |
180 | static int opt_line_number = FALSE; |
181 | static int opt_num_interval = NUMBER_INTERVAL; | |
6b161b31 | 182 | static enum request opt_request = REQ_VIEW_MAIN; |
03a93dbb | 183 | static char opt_cmd[SIZEOF_CMD] = ""; |
6908bdbd | 184 | static FILE *opt_pipe = NULL; |
b76c2afc | 185 | |
b76c2afc JF |
186 | /* Returns the index of log or diff command or -1 to exit. */ |
187 | static int | |
188 | parse_options(int argc, char *argv[]) | |
189 | { | |
190 | int i; | |
191 | ||
192 | for (i = 1; i < argc; i++) { | |
193 | char *opt = argv[i]; | |
194 | ||
195 | /** | |
196 | * log [options]:: | |
197 | * git log options. | |
2e8488b4 | 198 | * |
b76c2afc JF |
199 | * diff [options]:: |
200 | * git diff options. | |
201 | **/ | |
2e8488b4 JF |
202 | if (!strcmp(opt, "log") || |
203 | !strcmp(opt, "diff")) { | |
a28bcc22 | 204 | opt_request = opt[0] == 'l' |
2e8488b4 | 205 | ? REQ_VIEW_LOG : REQ_VIEW_DIFF; |
6908bdbd | 206 | break; |
6b161b31 | 207 | } |
b76c2afc JF |
208 | |
209 | /** | |
210 | * -l:: | |
211 | * Start up in log view. | |
212 | **/ | |
6b161b31 | 213 | if (!strcmp(opt, "-l")) { |
4a2909a7 | 214 | opt_request = REQ_VIEW_LOG; |
6b161b31 JF |
215 | continue; |
216 | } | |
b76c2afc JF |
217 | |
218 | /** | |
219 | * -d:: | |
220 | * Start up in diff view. | |
221 | **/ | |
6b161b31 | 222 | if (!strcmp(opt, "-d")) { |
4a2909a7 | 223 | opt_request = REQ_VIEW_DIFF; |
6b161b31 JF |
224 | continue; |
225 | } | |
b76c2afc JF |
226 | |
227 | /** | |
2e8488b4 | 228 | * -n[INTERVAL], --line-number[=INTERVAL]:: |
b76c2afc | 229 | * Prefix line numbers in log and diff view. |
2e8488b4 | 230 | * Optionally, with interval different than each line. |
b76c2afc | 231 | **/ |
6b161b31 | 232 | if (!strncmp(opt, "-n", 2) || |
2e8488b4 JF |
233 | !strncmp(opt, "--line-number", 13)) { |
234 | char *num = opt; | |
235 | ||
236 | if (opt[1] == 'n') { | |
237 | num = opt + 2; | |
238 | ||
239 | } else if (opt[STRING_SIZE("--line-number")] == '=') { | |
240 | num = opt + STRING_SIZE("--line-number="); | |
241 | } | |
242 | ||
243 | if (isdigit(*num)) | |
244 | opt_num_interval = atoi(num); | |
245 | ||
6b161b31 JF |
246 | opt_line_number = TRUE; |
247 | continue; | |
248 | } | |
b76c2afc JF |
249 | |
250 | /** | |
251 | * -v, --version:: | |
252 | * Show version and exit. | |
253 | **/ | |
6b161b31 | 254 | if (!strcmp(opt, "-v") || |
b76c2afc JF |
255 | !strcmp(opt, "--version")) { |
256 | printf("tig version %s\n", VERSION); | |
257 | return -1; | |
6b161b31 | 258 | } |
b76c2afc JF |
259 | |
260 | /** | |
03a93dbb | 261 | * \--:: |
889cb462 | 262 | * End of tig(1) options. Useful when specifying commands |
03a93dbb JF |
263 | * for the main view. Example: |
264 | * | |
889cb462 | 265 | * $ tig -- --since=1.month |
b76c2afc | 266 | **/ |
6908bdbd JF |
267 | if (!strcmp(opt, "--")) { |
268 | i++; | |
269 | break; | |
270 | } | |
03a93dbb JF |
271 | |
272 | /* Make stuff like: | |
889cb462 | 273 | * |
03a93dbb JF |
274 | * $ tig tag-1.0..HEAD |
275 | * | |
276 | * work. | |
277 | */ | |
278 | if (opt[0] && opt[0] != '-') | |
6908bdbd | 279 | break; |
6b161b31 JF |
280 | |
281 | die("unknown command '%s'", opt); | |
b76c2afc JF |
282 | } |
283 | ||
889cb462 JF |
284 | /** |
285 | * Pager mode | |
286 | * ~~~~~~~~~~ | |
287 | * If stdin is a pipe, any log or diff options will be ignored and the | |
288 | * pager view will be opened loading data from stdin. The pager mode | |
289 | * can be used for colorizing output from various git commands. | |
290 | * | |
291 | * Example on how to colorize the output of git-show(1): | |
292 | * | |
293 | * $ git show | tig | |
294 | **/ | |
6908bdbd | 295 | if (!isatty(STDIN_FILENO)) { |
6908bdbd JF |
296 | opt_request = REQ_VIEW_PAGER; |
297 | opt_pipe = stdin; | |
298 | ||
299 | } else if (i < argc) { | |
300 | size_t buf_size; | |
301 | ||
302 | /* XXX: This is vulnerable to the user overriding options | |
303 | * required for the main view parser. */ | |
304 | if (opt_request == REQ_VIEW_MAIN) | |
305 | string_copy(opt_cmd, "git log --stat --pretty=raw"); | |
306 | else | |
307 | string_copy(opt_cmd, "git"); | |
308 | buf_size = strlen(opt_cmd); | |
309 | ||
310 | while (buf_size < sizeof(opt_cmd) && i < argc) { | |
311 | opt_cmd[buf_size++] = ' '; | |
312 | buf_size = sq_quote(opt_cmd, buf_size, argv[i++]); | |
313 | } | |
314 | ||
315 | if (buf_size >= sizeof(opt_cmd)) | |
316 | die("command too long"); | |
317 | ||
318 | opt_cmd[buf_size] = 0; | |
319 | ||
320 | } | |
321 | ||
b76c2afc JF |
322 | return i; |
323 | } | |
324 | ||
325 | ||
4a2909a7 JF |
326 | /** |
327 | * KEYS | |
328 | * ---- | |
4a2909a7 JF |
329 | **/ |
330 | ||
331 | #define HELP "(d)iff, (l)og, (m)ain, (q)uit, (v)ersion, (h)elp" | |
332 | ||
333 | struct keymap { | |
334 | int alias; | |
335 | int request; | |
336 | }; | |
337 | ||
338 | struct keymap keymap[] = { | |
6b161b31 JF |
339 | /** |
340 | * View switching | |
341 | * ~~~~~~~~~~~~~~ | |
342 | * d:: | |
343 | * Switch to diff view. | |
344 | * l:: | |
345 | * Switch to log view. | |
346 | * m:: | |
347 | * Switch to main view. | |
348 | * h:: | |
349 | * Show man page. | |
350 | * Return:: | |
351 | * If in main view split the view | |
352 | * and show the diff in the bottom view. | |
03a93dbb JF |
353 | * Tab:: |
354 | * Switch to next view. | |
6b161b31 JF |
355 | **/ |
356 | { 'm', REQ_VIEW_MAIN }, | |
357 | { 'd', REQ_VIEW_DIFF }, | |
358 | { 'l', REQ_VIEW_LOG }, | |
359 | { 'h', REQ_VIEW_HELP }, | |
360 | ||
03a93dbb | 361 | { KEY_TAB, REQ_VIEW_NEXT }, |
6b161b31 JF |
362 | { KEY_RETURN, REQ_ENTER }, |
363 | ||
364 | /** | |
365 | * Cursor navigation | |
366 | * ~~~~~~~~~~~~~~~~~ | |
367 | * Up, k:: | |
368 | * Move curser one line up. | |
369 | * Down, j:: | |
370 | * Move cursor one line down. | |
371 | * Page Up:: | |
372 | * Move curser one page up. | |
373 | * Page Down:: | |
374 | * Move cursor one page down. | |
375 | * Home:: | |
376 | * Jump to first line. | |
377 | * End:: | |
378 | * Jump to last line. | |
379 | **/ | |
4a2909a7 JF |
380 | { KEY_UP, REQ_MOVE_UP }, |
381 | { 'k', REQ_MOVE_UP }, | |
382 | { KEY_DOWN, REQ_MOVE_DOWN }, | |
383 | { 'j', REQ_MOVE_DOWN }, | |
384 | { KEY_HOME, REQ_MOVE_FIRST_LINE }, | |
385 | { KEY_END, REQ_MOVE_LAST_LINE }, | |
386 | { KEY_NPAGE, REQ_MOVE_PAGE_DOWN }, | |
387 | { KEY_PPAGE, REQ_MOVE_PAGE_UP }, | |
388 | ||
6b161b31 JF |
389 | /** |
390 | * Scrolling | |
391 | * ~~~~~~~~~ | |
392 | * Insert:: | |
393 | * Scroll view one line up. | |
394 | * Delete:: | |
395 | * Scroll view one line down. | |
396 | * w:: | |
397 | * Scroll view one page up. | |
398 | * s:: | |
399 | * Scroll view one page down. | |
400 | **/ | |
a28bcc22 JF |
401 | { KEY_IC, REQ_SCROLL_LINE_UP }, |
402 | { KEY_DC, REQ_SCROLL_LINE_DOWN }, | |
403 | { 'w', REQ_SCROLL_PAGE_UP }, | |
404 | { 's', REQ_SCROLL_PAGE_DOWN }, | |
405 | ||
6b161b31 JF |
406 | /** |
407 | * Misc | |
408 | * ~~~~ | |
409 | * q, Escape:: | |
410 | * Quit | |
411 | * r:: | |
412 | * Redraw screen. | |
413 | * z:: | |
414 | * Stop all background loading. | |
415 | * v:: | |
416 | * Show version. | |
417 | * n:: | |
418 | * Toggle line numbers on/off. | |
03a93dbb JF |
419 | * ':':: |
420 | * Open prompt. | |
6b161b31 | 421 | **/ |
4a2909a7 JF |
422 | { KEY_ESC, REQ_QUIT }, |
423 | { 'q', REQ_QUIT }, | |
424 | { 'z', REQ_STOP_LOADING }, | |
425 | { 'v', REQ_SHOW_VERSION }, | |
426 | { 'r', REQ_SCREEN_REDRAW }, | |
427 | { 'n', REQ_TOGGLE_LINE_NUMBERS }, | |
03a93dbb | 428 | { ':', REQ_PROMPT }, |
4a2909a7 JF |
429 | |
430 | /* wgetch() with nodelay() enabled returns ERR when there's no input. */ | |
431 | { ERR, REQ_SCREEN_UPDATE }, | |
432 | }; | |
433 | ||
6b161b31 JF |
434 | static enum request |
435 | get_request(int key) | |
4a2909a7 JF |
436 | { |
437 | int i; | |
438 | ||
439 | for (i = 0; i < ARRAY_SIZE(keymap); i++) | |
6b161b31 | 440 | if (keymap[i].alias == key) |
4a2909a7 JF |
441 | return keymap[i].request; |
442 | ||
6b161b31 | 443 | return (enum request) key; |
4a2909a7 JF |
444 | } |
445 | ||
446 | ||
b76c2afc JF |
447 | /* |
448 | * Line-oriented content detection. | |
6b161b31 JF |
449 | */ |
450 | ||
2e8488b4 | 451 | #define LINE_INFO \ |
6b161b31 JF |
452 | /* Line type String to match Foreground Background Attributes |
453 | * --------- --------------- ---------- ---------- ---------- */ \ | |
a28bcc22 JF |
454 | /* Diff markup */ \ |
455 | LINE(DIFF, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
456 | LINE(INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
457 | LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ | |
458 | LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
459 | LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \ | |
460 | LINE(DIFF_OLDMODE, "old mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
461 | LINE(DIFF_NEWMODE, "new mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
462 | LINE(DIFF_COPY, "copy ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
463 | LINE(DIFF_RENAME, "rename ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
464 | LINE(DIFF_SIM, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
465 | LINE(DIFF_DISSIM, "dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
466 | /* Pretty print commit header */ \ | |
6908bdbd JF |
467 | LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
468 | LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
469 | LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
470 | LINE(PP_COMMIT, "Commit: ", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
a28bcc22 JF |
471 | /* Raw commit header */ \ |
472 | LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
473 | LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
474 | LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
475 | LINE(AUTHOR_IDENT, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \ | |
476 | LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ | |
477 | /* Misc */ \ | |
478 | LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
479 | LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
480 | /* UI colors */ \ | |
481 | LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \ | |
482 | LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \ | |
483 | LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
6b161b31 JF |
484 | LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \ |
485 | LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \ | |
a28bcc22 JF |
486 | LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
487 | LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
488 | LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \ | |
489 | LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), | |
2e8488b4 | 490 | |
78c70acd | 491 | enum line_type { |
2e8488b4 JF |
492 | #define LINE(type, line, fg, bg, attr) \ |
493 | LINE_##type | |
494 | LINE_INFO | |
495 | #undef LINE | |
78c70acd JF |
496 | }; |
497 | ||
498 | struct line_info { | |
2e8488b4 JF |
499 | char *line; /* The start of line to match. */ |
500 | int linelen; /* Size of string to match. */ | |
501 | int fg, bg, attr; /* Color and text attributes for the lines. */ | |
78c70acd JF |
502 | }; |
503 | ||
2e8488b4 | 504 | static struct line_info line_info[] = { |
78c70acd | 505 | #define LINE(type, line, fg, bg, attr) \ |
a28bcc22 | 506 | { (line), STRING_SIZE(line), (fg), (bg), (attr) } |
2e8488b4 JF |
507 | LINE_INFO |
508 | #undef LINE | |
78c70acd JF |
509 | }; |
510 | ||
2e8488b4 JF |
511 | static enum line_type |
512 | get_line_type(char *line) | |
78c70acd JF |
513 | { |
514 | int linelen = strlen(line); | |
a28bcc22 | 515 | enum line_type type; |
78c70acd | 516 | |
a28bcc22 | 517 | for (type = 0; type < ARRAY_SIZE(line_info); type++) |
2e8488b4 | 518 | /* Case insensitive search matches Signed-off-by lines better. */ |
a28bcc22 JF |
519 | if (linelen >= line_info[type].linelen && |
520 | !strncasecmp(line_info[type].line, line, line_info[type].linelen)) | |
521 | return type; | |
78c70acd | 522 | |
2e8488b4 | 523 | return LINE_DEFAULT; |
78c70acd JF |
524 | } |
525 | ||
2e8488b4 | 526 | static inline int |
78c70acd JF |
527 | get_line_attr(enum line_type type) |
528 | { | |
2e8488b4 JF |
529 | assert(type < ARRAY_SIZE(line_info)); |
530 | return COLOR_PAIR(type) | line_info[type].attr; | |
78c70acd JF |
531 | } |
532 | ||
533 | static void | |
534 | init_colors(void) | |
535 | { | |
82e78006 JF |
536 | int default_bg = COLOR_BLACK; |
537 | int default_fg = COLOR_WHITE; | |
a28bcc22 | 538 | enum line_type type; |
78c70acd JF |
539 | |
540 | start_color(); | |
541 | ||
542 | if (use_default_colors() != ERR) { | |
82e78006 JF |
543 | default_bg = -1; |
544 | default_fg = -1; | |
78c70acd JF |
545 | } |
546 | ||
a28bcc22 JF |
547 | for (type = 0; type < ARRAY_SIZE(line_info); type++) { |
548 | struct line_info *info = &line_info[type]; | |
82e78006 JF |
549 | int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg; |
550 | int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg; | |
78c70acd | 551 | |
a28bcc22 | 552 | init_pair(type, fg, bg); |
78c70acd JF |
553 | } |
554 | } | |
555 | ||
556 | ||
b801d8b2 JF |
557 | /* |
558 | * Viewer | |
559 | */ | |
560 | ||
561 | struct view { | |
03a93dbb | 562 | const char *name; /* View name */ |
49f2b43f | 563 | const char *cmdfmt; /* Default command line format */ |
03a93dbb JF |
564 | char *id; /* Points to either of ref_{head,commit} */ |
565 | size_t objsize; /* Size of objects in the line index */ | |
6b161b31 JF |
566 | |
567 | struct view_ops { | |
568 | bool (*draw)(struct view *view, unsigned int lineno); | |
569 | bool (*read)(struct view *view, char *line); | |
570 | bool (*enter)(struct view *view); | |
571 | } *ops; | |
22f66b0a | 572 | |
03a93dbb | 573 | char cmd[SIZEOF_CMD]; /* Command buffer */ |
49f2b43f JF |
574 | char ref[SIZEOF_REF]; /* Hovered commit reference */ |
575 | char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */ | |
2e8488b4 | 576 | |
b801d8b2 | 577 | WINDOW *win; |
a28bcc22 | 578 | WINDOW *title; |
fd85fef1 | 579 | int height, width; |
b801d8b2 JF |
580 | |
581 | /* Navigation */ | |
582 | unsigned long offset; /* Offset of the window top */ | |
583 | unsigned long lineno; /* Current line number */ | |
584 | ||
585 | /* Buffering */ | |
586 | unsigned long lines; /* Total number of lines */ | |
22f66b0a | 587 | void **line; /* Line index */ |
b801d8b2 JF |
588 | |
589 | /* Loading */ | |
590 | FILE *pipe; | |
2e8488b4 | 591 | time_t start_time; |
b801d8b2 JF |
592 | }; |
593 | ||
6b161b31 JF |
594 | static struct view_ops pager_ops; |
595 | static struct view_ops main_ops; | |
a28bcc22 | 596 | |
fd85fef1 | 597 | #define DIFF_CMD \ |
b801d8b2 JF |
598 | "git log --stat -n1 %s ; echo; " \ |
599 | "git diff --find-copies-harder -B -C %s^ %s" | |
600 | ||
601 | #define LOG_CMD \ | |
9d3f5834 | 602 | "git log --cc --stat -n100 %s" |
b801d8b2 | 603 | |
fd85fef1 JF |
604 | #define MAIN_CMD \ |
605 | "git log --stat --pretty=raw %s" | |
606 | ||
2e8488b4 JF |
607 | #define HELP_CMD \ |
608 | "man tig 2> /dev/null" | |
609 | ||
49f2b43f JF |
610 | char ref_head[SIZEOF_REF] = "HEAD"; |
611 | char ref_commit[SIZEOF_REF] = "HEAD"; | |
612 | ||
b801d8b2 | 613 | static struct view views[] = { |
6908bdbd JF |
614 | { "main", MAIN_CMD, ref_head, sizeof(struct commit), &main_ops }, |
615 | { "diff", DIFF_CMD, ref_commit, sizeof(char), &pager_ops }, | |
616 | { "log", LOG_CMD, ref_head, sizeof(char), &pager_ops }, | |
617 | { "help", HELP_CMD, ref_head, sizeof(char), &pager_ops }, | |
618 | { "pager", "cat", ref_head, sizeof(char), &pager_ops }, | |
b801d8b2 JF |
619 | }; |
620 | ||
a28bcc22 JF |
621 | #define VIEW(req) (&views[(req) - REQ_OFFSET - 1]) |
622 | ||
4c6fabc2 | 623 | /* The display array of active views and the index of the current view. */ |
6b161b31 | 624 | static struct view *display[2]; |
4c6fabc2 | 625 | static unsigned int current_view; |
22f66b0a | 626 | |
b801d8b2 | 627 | #define foreach_view(view, i) \ |
6b161b31 | 628 | for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++) |
b801d8b2 | 629 | |
4c6fabc2 | 630 | |
b801d8b2 | 631 | static void |
82e78006 | 632 | redraw_view_from(struct view *view, int lineno) |
b801d8b2 | 633 | { |
82e78006 | 634 | assert(0 <= lineno && lineno < view->height); |
b801d8b2 | 635 | |
82e78006 | 636 | for (; lineno < view->height; lineno++) { |
6b161b31 | 637 | if (!view->ops->draw(view, lineno)) |
fd85fef1 | 638 | break; |
b801d8b2 JF |
639 | } |
640 | ||
641 | redrawwin(view->win); | |
642 | wrefresh(view->win); | |
643 | } | |
644 | ||
b76c2afc | 645 | static void |
82e78006 JF |
646 | redraw_view(struct view *view) |
647 | { | |
648 | wclear(view->win); | |
649 | redraw_view_from(view, 0); | |
650 | } | |
651 | ||
6b161b31 JF |
652 | static void |
653 | resize_display(void) | |
b76c2afc | 654 | { |
03a93dbb | 655 | int offset, i; |
6b161b31 JF |
656 | struct view *base = display[0]; |
657 | struct view *view = display[1] ? display[1] : display[0]; | |
b76c2afc | 658 | |
6b161b31 | 659 | /* Setup window dimensions */ |
b76c2afc | 660 | |
03a93dbb | 661 | getmaxyx(stdscr, base->height, base->width); |
b76c2afc | 662 | |
6b161b31 | 663 | /* Make room for the status window. */ |
03a93dbb | 664 | base->height -= 1; |
6b161b31 JF |
665 | |
666 | if (view != base) { | |
03a93dbb JF |
667 | /* Horizontal split. */ |
668 | view->width = base->width; | |
6b161b31 JF |
669 | view->height = SCALE_SPLIT_VIEW(base->height); |
670 | base->height -= view->height; | |
671 | ||
672 | /* Make room for the title bar. */ | |
673 | view->height -= 1; | |
674 | } | |
675 | ||
676 | /* Make room for the title bar. */ | |
677 | base->height -= 1; | |
678 | ||
679 | offset = 0; | |
680 | ||
681 | foreach_view (view, i) { | |
b76c2afc | 682 | if (!view->win) { |
6b161b31 JF |
683 | view->win = newwin(view->height, 0, offset, 0); |
684 | if (!view->win) | |
685 | die("Failed to create %s view", view->name); | |
686 | ||
687 | scrollok(view->win, TRUE); | |
688 | ||
689 | view->title = newwin(1, 0, offset + view->height, 0); | |
690 | if (!view->title) | |
691 | die("Failed to create title window"); | |
692 | ||
693 | } else { | |
694 | wresize(view->win, view->height, view->width); | |
695 | mvwin(view->win, offset, 0); | |
696 | mvwin(view->title, offset + view->height, 0); | |
697 | wrefresh(view->win); | |
a28bcc22 | 698 | } |
a28bcc22 | 699 | |
6b161b31 | 700 | offset += view->height + 1; |
b76c2afc | 701 | } |
6b161b31 | 702 | } |
b76c2afc | 703 | |
6b161b31 JF |
704 | static void |
705 | update_view_title(struct view *view) | |
706 | { | |
707 | if (view == display[current_view]) | |
708 | wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS)); | |
709 | else | |
710 | wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR)); | |
a28bcc22 | 711 | |
6b161b31 JF |
712 | werase(view->title); |
713 | wmove(view->title, 0, 0); | |
b76c2afc | 714 | |
6b161b31 | 715 | /* [main] ref: 334b506... - commit 6 of 4383 (0%) */ |
6908bdbd JF |
716 | |
717 | if (*view->ref) | |
718 | wprintw(view->title, "[%s] ref: %s", view->name, view->ref); | |
719 | else | |
720 | wprintw(view->title, "[%s]", view->name); | |
721 | ||
6b161b31 JF |
722 | if (view->lines) { |
723 | char *type = view == VIEW(REQ_VIEW_MAIN) ? "commit" : "line"; | |
724 | ||
725 | wprintw(view->title, " - %s %d of %d (%d%%)", | |
726 | type, | |
727 | view->lineno + 1, | |
728 | view->lines, | |
729 | (view->lineno + 1) * 100 / view->lines); | |
730 | } | |
731 | ||
732 | wrefresh(view->title); | |
733 | } | |
78c70acd | 734 | |
2e8488b4 JF |
735 | /* |
736 | * Navigation | |
737 | */ | |
738 | ||
4a2909a7 | 739 | /* Scrolling backend */ |
b801d8b2 | 740 | static void |
4a2909a7 | 741 | do_scroll_view(struct view *view, int lines) |
b801d8b2 | 742 | { |
fd85fef1 JF |
743 | /* The rendering expects the new offset. */ |
744 | view->offset += lines; | |
745 | ||
746 | assert(0 <= view->offset && view->offset < view->lines); | |
747 | assert(lines); | |
b801d8b2 | 748 | |
82e78006 | 749 | /* Redraw the whole screen if scrolling is pointless. */ |
4c6fabc2 | 750 | if (view->height < ABS(lines)) { |
b76c2afc JF |
751 | redraw_view(view); |
752 | ||
753 | } else { | |
22f66b0a | 754 | int line = lines > 0 ? view->height - lines : 0; |
82e78006 | 755 | int end = line + ABS(lines); |
fd85fef1 JF |
756 | |
757 | wscrl(view->win, lines); | |
758 | ||
22f66b0a | 759 | for (; line < end; line++) { |
6b161b31 | 760 | if (!view->ops->draw(view, line)) |
fd85fef1 JF |
761 | break; |
762 | } | |
763 | } | |
764 | ||
765 | /* Move current line into the view. */ | |
766 | if (view->lineno < view->offset) { | |
767 | view->lineno = view->offset; | |
6b161b31 | 768 | view->ops->draw(view, 0); |
fd85fef1 JF |
769 | |
770 | } else if (view->lineno >= view->offset + view->height) { | |
771 | view->lineno = view->offset + view->height - 1; | |
6b161b31 | 772 | view->ops->draw(view, view->lineno - view->offset); |
fd85fef1 JF |
773 | } |
774 | ||
4c6fabc2 | 775 | assert(view->offset <= view->lineno && view->lineno < view->lines); |
fd85fef1 JF |
776 | |
777 | redrawwin(view->win); | |
778 | wrefresh(view->win); | |
9d3f5834 | 779 | report(""); |
fd85fef1 | 780 | } |
78c70acd | 781 | |
4a2909a7 | 782 | /* Scroll frontend */ |
fd85fef1 | 783 | static void |
6b161b31 | 784 | scroll_view(struct view *view, enum request request) |
fd85fef1 JF |
785 | { |
786 | int lines = 1; | |
b801d8b2 JF |
787 | |
788 | switch (request) { | |
4a2909a7 | 789 | case REQ_SCROLL_PAGE_DOWN: |
fd85fef1 | 790 | lines = view->height; |
4a2909a7 | 791 | case REQ_SCROLL_LINE_DOWN: |
b801d8b2 | 792 | if (view->offset + lines > view->lines) |
bde3653a | 793 | lines = view->lines - view->offset; |
b801d8b2 | 794 | |
fd85fef1 | 795 | if (lines == 0 || view->offset + view->height >= view->lines) { |
03a93dbb | 796 | report("Already on last line"); |
b801d8b2 JF |
797 | return; |
798 | } | |
799 | break; | |
800 | ||
4a2909a7 | 801 | case REQ_SCROLL_PAGE_UP: |
fd85fef1 | 802 | lines = view->height; |
4a2909a7 | 803 | case REQ_SCROLL_LINE_UP: |
b801d8b2 JF |
804 | if (lines > view->offset) |
805 | lines = view->offset; | |
806 | ||
807 | if (lines == 0) { | |
03a93dbb | 808 | report("Already on first line"); |
b801d8b2 JF |
809 | return; |
810 | } | |
811 | ||
fd85fef1 | 812 | lines = -lines; |
b801d8b2 | 813 | break; |
03a93dbb | 814 | |
6b161b31 JF |
815 | default: |
816 | die("request %d not handled in switch", request); | |
b801d8b2 JF |
817 | } |
818 | ||
4a2909a7 | 819 | do_scroll_view(view, lines); |
fd85fef1 | 820 | } |
b801d8b2 | 821 | |
4a2909a7 | 822 | /* Cursor moving */ |
fd85fef1 | 823 | static void |
6b161b31 | 824 | move_view(struct view *view, enum request request) |
fd85fef1 JF |
825 | { |
826 | int steps; | |
b801d8b2 | 827 | |
fd85fef1 | 828 | switch (request) { |
4a2909a7 | 829 | case REQ_MOVE_FIRST_LINE: |
78c70acd JF |
830 | steps = -view->lineno; |
831 | break; | |
832 | ||
4a2909a7 | 833 | case REQ_MOVE_LAST_LINE: |
78c70acd JF |
834 | steps = view->lines - view->lineno - 1; |
835 | break; | |
836 | ||
4a2909a7 | 837 | case REQ_MOVE_PAGE_UP: |
78c70acd JF |
838 | steps = view->height > view->lineno |
839 | ? -view->lineno : -view->height; | |
840 | break; | |
841 | ||
4a2909a7 | 842 | case REQ_MOVE_PAGE_DOWN: |
78c70acd JF |
843 | steps = view->lineno + view->height >= view->lines |
844 | ? view->lines - view->lineno - 1 : view->height; | |
845 | break; | |
846 | ||
4a2909a7 | 847 | case REQ_MOVE_UP: |
fd85fef1 JF |
848 | steps = -1; |
849 | break; | |
b801d8b2 | 850 | |
4a2909a7 | 851 | case REQ_MOVE_DOWN: |
fd85fef1 JF |
852 | steps = 1; |
853 | break; | |
6b161b31 JF |
854 | |
855 | default: | |
856 | die("request %d not handled in switch", request); | |
78c70acd | 857 | } |
b801d8b2 | 858 | |
4c6fabc2 | 859 | if (steps <= 0 && view->lineno == 0) { |
03a93dbb | 860 | report("Already on first line"); |
78c70acd | 861 | return; |
b801d8b2 | 862 | |
6908bdbd | 863 | } else if (steps >= 0 && view->lineno + 1 >= view->lines) { |
03a93dbb | 864 | report("Already on last line"); |
78c70acd | 865 | return; |
fd85fef1 JF |
866 | } |
867 | ||
4c6fabc2 | 868 | /* Move the current line */ |
fd85fef1 | 869 | view->lineno += steps; |
4c6fabc2 JF |
870 | assert(0 <= view->lineno && view->lineno < view->lines); |
871 | ||
872 | /* Repaint the old "current" line if we be scrolling */ | |
2e8488b4 JF |
873 | if (ABS(steps) < view->height) { |
874 | int prev_lineno = view->lineno - steps - view->offset; | |
875 | ||
876 | wmove(view->win, prev_lineno, 0); | |
877 | wclrtoeol(view->win); | |
03a93dbb | 878 | view->ops->draw(view, prev_lineno); |
2e8488b4 | 879 | } |
fd85fef1 | 880 | |
4c6fabc2 | 881 | /* Check whether the view needs to be scrolled */ |
fd85fef1 JF |
882 | if (view->lineno < view->offset || |
883 | view->lineno >= view->offset + view->height) { | |
884 | if (steps < 0 && -steps > view->offset) { | |
885 | steps = -view->offset; | |
b76c2afc JF |
886 | |
887 | } else if (steps > 0) { | |
888 | if (view->lineno == view->lines - 1 && | |
889 | view->lines > view->height) { | |
890 | steps = view->lines - view->offset - 1; | |
891 | if (steps >= view->height) | |
892 | steps -= view->height - 1; | |
893 | } | |
b801d8b2 | 894 | } |
78c70acd | 895 | |
4a2909a7 | 896 | do_scroll_view(view, steps); |
fd85fef1 | 897 | return; |
b801d8b2 JF |
898 | } |
899 | ||
4c6fabc2 | 900 | /* Draw the current line */ |
6b161b31 | 901 | view->ops->draw(view, view->lineno - view->offset); |
fd85fef1 | 902 | |
b801d8b2 JF |
903 | redrawwin(view->win); |
904 | wrefresh(view->win); | |
9d3f5834 | 905 | report(""); |
b801d8b2 JF |
906 | } |
907 | ||
b801d8b2 | 908 | |
2e8488b4 JF |
909 | /* |
910 | * Incremental updating | |
911 | */ | |
b801d8b2 | 912 | |
03a93dbb | 913 | static bool |
b801d8b2 JF |
914 | begin_update(struct view *view) |
915 | { | |
2e8488b4 | 916 | char *id = view->id; |
fd85fef1 | 917 | |
03a93dbb JF |
918 | if (opt_cmd[0]) { |
919 | string_copy(view->cmd, opt_cmd); | |
920 | opt_cmd[0] = 0; | |
921 | } else { | |
49f2b43f | 922 | if (snprintf(view->cmd, sizeof(view->cmd), view->cmdfmt, |
03a93dbb JF |
923 | id, id, id) >= sizeof(view->cmd)) |
924 | return FALSE; | |
925 | } | |
b801d8b2 | 926 | |
6908bdbd JF |
927 | /* Special case for the pager view. */ |
928 | if (opt_pipe) { | |
929 | view->pipe = opt_pipe; | |
930 | opt_pipe = NULL; | |
931 | } else { | |
932 | view->pipe = popen(view->cmd, "r"); | |
933 | } | |
934 | ||
2e8488b4 JF |
935 | if (!view->pipe) |
936 | return FALSE; | |
b801d8b2 | 937 | |
6b161b31 | 938 | set_nonblocking_input(TRUE); |
b801d8b2 JF |
939 | |
940 | view->offset = 0; | |
941 | view->lines = 0; | |
942 | view->lineno = 0; | |
49f2b43f | 943 | string_copy(view->vid, id); |
b801d8b2 | 944 | |
2e8488b4 JF |
945 | if (view->line) { |
946 | int i; | |
947 | ||
948 | for (i = 0; i < view->lines; i++) | |
949 | if (view->line[i]) | |
950 | free(view->line[i]); | |
951 | ||
952 | free(view->line); | |
953 | view->line = NULL; | |
954 | } | |
955 | ||
956 | view->start_time = time(NULL); | |
957 | ||
b801d8b2 JF |
958 | return TRUE; |
959 | } | |
960 | ||
961 | static void | |
962 | end_update(struct view *view) | |
963 | { | |
03a93dbb JF |
964 | if (!view->pipe) |
965 | return; | |
6b161b31 | 966 | set_nonblocking_input(FALSE); |
2e8488b4 JF |
967 | pclose(view->pipe); |
968 | view->pipe = NULL; | |
b801d8b2 JF |
969 | } |
970 | ||
03a93dbb | 971 | static bool |
b801d8b2 JF |
972 | update_view(struct view *view) |
973 | { | |
974 | char buffer[BUFSIZ]; | |
975 | char *line; | |
22f66b0a | 976 | void **tmp; |
82e78006 JF |
977 | /* The number of lines to read. If too low it will cause too much |
978 | * redrawing (and possible flickering), if too high responsiveness | |
979 | * will suffer. */ | |
fd85fef1 | 980 | int lines = view->height; |
82e78006 | 981 | int redraw_from = -1; |
b801d8b2 JF |
982 | |
983 | if (!view->pipe) | |
984 | return TRUE; | |
985 | ||
82e78006 JF |
986 | /* Only redraw if lines are visible. */ |
987 | if (view->offset + view->height >= view->lines) | |
988 | redraw_from = view->lines - view->offset; | |
b801d8b2 JF |
989 | |
990 | tmp = realloc(view->line, sizeof(*view->line) * (view->lines + lines)); | |
991 | if (!tmp) | |
992 | goto alloc_error; | |
993 | ||
994 | view->line = tmp; | |
995 | ||
996 | while ((line = fgets(buffer, sizeof(buffer), view->pipe))) { | |
997 | int linelen; | |
998 | ||
b801d8b2 JF |
999 | linelen = strlen(line); |
1000 | if (linelen) | |
1001 | line[linelen - 1] = 0; | |
1002 | ||
6b161b31 | 1003 | if (!view->ops->read(view, line)) |
b801d8b2 | 1004 | goto alloc_error; |
fd85fef1 JF |
1005 | |
1006 | if (lines-- == 1) | |
1007 | break; | |
b801d8b2 JF |
1008 | } |
1009 | ||
4a2909a7 | 1010 | /* CPU hogilicious! */ |
6b161b31 | 1011 | update_view_title(view); |
4a2909a7 | 1012 | |
82e78006 JF |
1013 | if (redraw_from >= 0) { |
1014 | /* If this is an incremental update, redraw the previous line | |
a28bcc22 JF |
1015 | * since for commits some members could have changed when |
1016 | * loading the main view. */ | |
82e78006 JF |
1017 | if (redraw_from > 0) |
1018 | redraw_from--; | |
1019 | ||
1020 | /* Incrementally draw avoids flickering. */ | |
1021 | redraw_view_from(view, redraw_from); | |
4c6fabc2 | 1022 | } |
b801d8b2 JF |
1023 | |
1024 | if (ferror(view->pipe)) { | |
03a93dbb | 1025 | report("Failed to read: %s", strerror(errno)); |
b801d8b2 JF |
1026 | goto end; |
1027 | ||
1028 | } else if (feof(view->pipe)) { | |
2e8488b4 JF |
1029 | time_t secs = time(NULL) - view->start_time; |
1030 | ||
a28bcc22 JF |
1031 | if (view == VIEW(REQ_VIEW_HELP)) { |
1032 | report("%s", HELP); | |
2e8488b4 JF |
1033 | goto end; |
1034 | } | |
1035 | ||
1036 | report("Loaded %d lines in %ld second%s", view->lines, secs, | |
1037 | secs == 1 ? "" : "s"); | |
b801d8b2 JF |
1038 | goto end; |
1039 | } | |
1040 | ||
1041 | return TRUE; | |
1042 | ||
1043 | alloc_error: | |
2e8488b4 | 1044 | report("Allocation failure"); |
b801d8b2 JF |
1045 | |
1046 | end: | |
1047 | end_update(view); | |
1048 | return FALSE; | |
1049 | } | |
1050 | ||
49f2b43f JF |
1051 | enum open_flags { |
1052 | OPEN_DEFAULT = 0, /* Use default view switching. */ | |
1053 | OPEN_SPLIT = 1, /* Split current view. */ | |
1054 | OPEN_BACKGROUNDED = 2, /* Backgrounded. */ | |
1055 | OPEN_RELOAD = 4, /* Reload view even if it is the current. */ | |
1056 | }; | |
1057 | ||
6b161b31 | 1058 | static void |
49f2b43f | 1059 | open_view(struct view *prev, enum request request, enum open_flags flags) |
b801d8b2 | 1060 | { |
49f2b43f JF |
1061 | bool backgrounded = !!(flags & OPEN_BACKGROUNDED); |
1062 | bool split = !!(flags & OPEN_SPLIT); | |
1063 | bool reload = !!(flags & OPEN_RELOAD); | |
a28bcc22 | 1064 | struct view *view = VIEW(request); |
b801d8b2 | 1065 | struct view *displayed; |
6b161b31 JF |
1066 | int nviews; |
1067 | ||
03a93dbb | 1068 | /* Cycle between displayed views and count the views. */ |
6b161b31 | 1069 | foreach_view (displayed, nviews) { |
03a93dbb JF |
1070 | if (prev != view && |
1071 | view == displayed && | |
1072 | !strcmp(view->id, prev->id)) { | |
6b161b31 JF |
1073 | current_view = nviews; |
1074 | /* Blur out the title of the previous view. */ | |
1075 | update_view_title(prev); | |
1076 | report("Switching to %s view", view->name); | |
1077 | return; | |
a28bcc22 | 1078 | } |
6b161b31 | 1079 | } |
b801d8b2 | 1080 | |
49f2b43f | 1081 | if (view == prev && nviews == 1 && !reload) { |
6b161b31 JF |
1082 | report("Already in %s view", view->name); |
1083 | return; | |
1084 | } | |
b801d8b2 | 1085 | |
49f2b43f | 1086 | if (strcmp(view->vid, view->id) && |
03a93dbb | 1087 | !begin_update(view)) { |
6b161b31 JF |
1088 | report("Failed to load %s view", view->name); |
1089 | return; | |
1090 | } | |
a28bcc22 | 1091 | |
6b161b31 JF |
1092 | if (split) { |
1093 | display[current_view + 1] = view; | |
1094 | if (!backgrounded) | |
a28bcc22 | 1095 | current_view++; |
6b161b31 JF |
1096 | } else { |
1097 | /* Maximize the current view. */ | |
1098 | memset(display, 0, sizeof(display)); | |
1099 | current_view = 0; | |
1100 | display[current_view] = view; | |
a28bcc22 | 1101 | } |
b801d8b2 | 1102 | |
6b161b31 | 1103 | resize_display(); |
b801d8b2 | 1104 | |
03a93dbb JF |
1105 | if (split && prev->lineno - prev->offset > prev->height) { |
1106 | /* Take the title line into account. */ | |
1107 | int lines = prev->lineno - prev->height + 1; | |
1108 | ||
1109 | /* Scroll the view that was split if the current line is | |
1110 | * outside the new limited view. */ | |
1111 | do_scroll_view(prev, lines); | |
1112 | } | |
1113 | ||
6b161b31 JF |
1114 | if (prev && view != prev) { |
1115 | /* "Blur" the previous view. */ | |
1116 | update_view_title(prev); | |
1117 | ||
1118 | /* Continue loading split views in the background. */ | |
03a93dbb | 1119 | if (!split) |
6b161b31 | 1120 | end_update(prev); |
b801d8b2 JF |
1121 | } |
1122 | ||
03a93dbb JF |
1123 | if (view->pipe) { |
1124 | /* Clear the old view and let the incremental updating refill | |
1125 | * the screen. */ | |
1126 | wclear(view->win); | |
1127 | report("Loading..."); | |
1128 | } else { | |
1129 | redraw_view(view); | |
1130 | report(""); | |
1131 | } | |
b801d8b2 JF |
1132 | } |
1133 | ||
1134 | ||
6b161b31 JF |
1135 | /* |
1136 | * User request switch noodle | |
1137 | */ | |
1138 | ||
b801d8b2 | 1139 | static int |
6b161b31 | 1140 | view_driver(struct view *view, enum request request) |
b801d8b2 | 1141 | { |
b801d8b2 JF |
1142 | int i; |
1143 | ||
1144 | switch (request) { | |
4a2909a7 JF |
1145 | case REQ_MOVE_UP: |
1146 | case REQ_MOVE_DOWN: | |
1147 | case REQ_MOVE_PAGE_UP: | |
1148 | case REQ_MOVE_PAGE_DOWN: | |
1149 | case REQ_MOVE_FIRST_LINE: | |
1150 | case REQ_MOVE_LAST_LINE: | |
a28bcc22 | 1151 | move_view(view, request); |
fd85fef1 JF |
1152 | break; |
1153 | ||
4a2909a7 JF |
1154 | case REQ_SCROLL_LINE_DOWN: |
1155 | case REQ_SCROLL_LINE_UP: | |
1156 | case REQ_SCROLL_PAGE_DOWN: | |
1157 | case REQ_SCROLL_PAGE_UP: | |
a28bcc22 | 1158 | scroll_view(view, request); |
b801d8b2 JF |
1159 | break; |
1160 | ||
4a2909a7 | 1161 | case REQ_VIEW_MAIN: |
4a2909a7 | 1162 | case REQ_VIEW_DIFF: |
2e8488b4 JF |
1163 | case REQ_VIEW_LOG: |
1164 | case REQ_VIEW_HELP: | |
6908bdbd | 1165 | case REQ_VIEW_PAGER: |
49f2b43f | 1166 | open_view(view, request, OPEN_DEFAULT); |
b801d8b2 JF |
1167 | break; |
1168 | ||
6b161b31 | 1169 | case REQ_ENTER: |
6908bdbd JF |
1170 | if (!view->lines) { |
1171 | report("Nothing to enter"); | |
1172 | break; | |
1173 | } | |
6b161b31 JF |
1174 | return view->ops->enter(view); |
1175 | ||
03a93dbb JF |
1176 | case REQ_VIEW_NEXT: |
1177 | { | |
1178 | int nviews = display[1] ? 2 : 1; | |
1179 | int next_view = (current_view + 1) % nviews; | |
1180 | ||
1181 | if (next_view == current_view) { | |
1182 | report("Only one view is displayed"); | |
1183 | break; | |
1184 | } | |
1185 | ||
1186 | current_view = next_view; | |
1187 | /* Blur out the title of the previous view. */ | |
1188 | update_view_title(view); | |
1189 | report("Switching to %s view", display[current_view]->name); | |
1190 | break; | |
1191 | } | |
4a2909a7 | 1192 | case REQ_TOGGLE_LINE_NUMBERS: |
b76c2afc | 1193 | opt_line_number = !opt_line_number; |
a28bcc22 | 1194 | redraw_view(view); |
b801d8b2 JF |
1195 | break; |
1196 | ||
03a93dbb | 1197 | case REQ_PROMPT: |
49f2b43f | 1198 | open_view(view, opt_request, OPEN_RELOAD); |
03a93dbb JF |
1199 | break; |
1200 | ||
4a2909a7 | 1201 | case REQ_STOP_LOADING: |
03a93dbb | 1202 | foreach_view (view, i) { |
2e8488b4 | 1203 | if (view->pipe) |
03a93dbb JF |
1204 | report("Stopped loaded of %s view", view->name), |
1205 | end_update(view); | |
1206 | } | |
b801d8b2 JF |
1207 | break; |
1208 | ||
4a2909a7 | 1209 | case REQ_SHOW_VERSION: |
2e8488b4 | 1210 | report("Version: %s", VERSION); |
b801d8b2 JF |
1211 | return TRUE; |
1212 | ||
4a2909a7 JF |
1213 | case REQ_SCREEN_REDRAW: |
1214 | redraw_view(view); | |
1215 | break; | |
1216 | ||
1217 | case REQ_SCREEN_UPDATE: | |
b801d8b2 JF |
1218 | doupdate(); |
1219 | return TRUE; | |
1220 | ||
1221 | case REQ_QUIT: | |
1222 | return FALSE; | |
1223 | ||
1224 | default: | |
2e8488b4 | 1225 | /* An unknown key will show most commonly used commands. */ |
a28bcc22 | 1226 | report("%s", HELP); |
b801d8b2 JF |
1227 | return TRUE; |
1228 | } | |
1229 | ||
1230 | return TRUE; | |
1231 | } | |
1232 | ||
1233 | ||
1234 | /* | |
6b161b31 | 1235 | * View backend handlers |
b801d8b2 JF |
1236 | */ |
1237 | ||
6b161b31 | 1238 | static bool |
22f66b0a | 1239 | pager_draw(struct view *view, unsigned int lineno) |
b801d8b2 | 1240 | { |
78c70acd | 1241 | enum line_type type; |
b801d8b2 | 1242 | char *line; |
4c6fabc2 | 1243 | int linelen; |
78c70acd | 1244 | int attr; |
b801d8b2 | 1245 | |
fd85fef1 JF |
1246 | if (view->offset + lineno >= view->lines) |
1247 | return FALSE; | |
1248 | ||
b801d8b2 | 1249 | line = view->line[view->offset + lineno]; |
78c70acd | 1250 | type = get_line_type(line); |
b801d8b2 | 1251 | |
fd85fef1 | 1252 | if (view->offset + lineno == view->lineno) { |
6908bdbd JF |
1253 | switch (type) { |
1254 | case LINE_COMMIT: | |
03a93dbb JF |
1255 | string_copy(view->ref, line + 7); |
1256 | string_copy(ref_commit, view->ref); | |
6908bdbd JF |
1257 | break; |
1258 | case LINE_PP_COMMIT: | |
1259 | string_copy(view->ref, line + 8); | |
1260 | string_copy(ref_commit, view->ref); | |
1261 | default: | |
1262 | break; | |
03a93dbb | 1263 | } |
78c70acd | 1264 | type = LINE_CURSOR; |
fd85fef1 JF |
1265 | } |
1266 | ||
78c70acd | 1267 | attr = get_line_attr(type); |
b801d8b2 | 1268 | wattrset(view->win, attr); |
b76c2afc | 1269 | |
4c6fabc2 JF |
1270 | linelen = strlen(line); |
1271 | linelen = MIN(linelen, view->width); | |
1272 | ||
b76c2afc | 1273 | if (opt_line_number) { |
82e78006 | 1274 | unsigned int real_lineno = view->offset + lineno + 1; |
a28bcc22 | 1275 | int col = 0; |
82e78006 | 1276 | |
2e8488b4 | 1277 | if (real_lineno == 1 || (real_lineno % opt_num_interval) == 0) |
82e78006 | 1278 | mvwprintw(view->win, lineno, 0, "%4d: ", real_lineno); |
4c6fabc2 | 1279 | else |
82e78006 | 1280 | mvwaddstr(view->win, lineno, 0, " : "); |
4c6fabc2 | 1281 | |
b76c2afc JF |
1282 | while (line) { |
1283 | if (*line == '\t') { | |
82e78006 JF |
1284 | waddnstr(view->win, " ", 8 - (col % 8)); |
1285 | col += 8 - (col % 8); | |
b76c2afc | 1286 | line++; |
82e78006 | 1287 | |
b76c2afc JF |
1288 | } else { |
1289 | char *tab = strchr(line, '\t'); | |
1290 | ||
1291 | if (tab) | |
1292 | waddnstr(view->win, line, tab - line); | |
1293 | else | |
1294 | waddstr(view->win, line); | |
82e78006 | 1295 | col += tab - line; |
b76c2afc JF |
1296 | line = tab; |
1297 | } | |
1298 | } | |
1299 | waddstr(view->win, line); | |
1300 | ||
1301 | } else { | |
2e8488b4 JF |
1302 | #if 0 |
1303 | /* NOTE: Code for only highlighting the text on the cursor line. | |
1304 | * Kept since I've not yet decided whether to highlight the | |
1305 | * entire line or not. --fonseca */ | |
b76c2afc JF |
1306 | /* No empty lines makes cursor drawing and clearing implicit. */ |
1307 | if (!*line) | |
4c6fabc2 | 1308 | line = " ", linelen = 1; |
2e8488b4 | 1309 | #endif |
4c6fabc2 | 1310 | mvwaddnstr(view->win, lineno, 0, line, linelen); |
b76c2afc | 1311 | } |
b801d8b2 | 1312 | |
2e8488b4 JF |
1313 | /* Paint the rest of the line if it's the cursor line. */ |
1314 | if (type == LINE_CURSOR) | |
1315 | wchgat(view->win, -1, 0, type, NULL); | |
1316 | ||
b801d8b2 JF |
1317 | return TRUE; |
1318 | } | |
1319 | ||
6b161b31 | 1320 | static bool |
22f66b0a JF |
1321 | pager_read(struct view *view, char *line) |
1322 | { | |
1323 | view->line[view->lines] = strdup(line); | |
1324 | if (!view->line[view->lines]) | |
1325 | return FALSE; | |
1326 | ||
1327 | view->lines++; | |
1328 | return TRUE; | |
1329 | } | |
1330 | ||
6b161b31 JF |
1331 | static bool |
1332 | pager_enter(struct view *view) | |
1333 | { | |
1334 | char *line = view->line[view->lineno]; | |
1335 | ||
1336 | if (get_line_type(line) == LINE_COMMIT) { | |
49f2b43f | 1337 | open_view(view, REQ_VIEW_DIFF, OPEN_DEFAULT); |
6b161b31 JF |
1338 | } |
1339 | ||
1340 | return TRUE; | |
1341 | } | |
1342 | ||
1343 | ||
1344 | static struct view_ops pager_ops = { | |
1345 | pager_draw, | |
1346 | pager_read, | |
1347 | pager_enter, | |
1348 | }; | |
1349 | ||
1350 | static bool | |
22f66b0a JF |
1351 | main_draw(struct view *view, unsigned int lineno) |
1352 | { | |
2e8488b4 | 1353 | char buf[DATE_COLS + 1]; |
22f66b0a | 1354 | struct commit *commit; |
78c70acd | 1355 | enum line_type type; |
b76c2afc JF |
1356 | int cols = 0; |
1357 | size_t timelen; | |
22f66b0a JF |
1358 | |
1359 | if (view->offset + lineno >= view->lines) | |
1360 | return FALSE; | |
1361 | ||
1362 | commit = view->line[view->offset + lineno]; | |
4c6fabc2 JF |
1363 | if (!*commit->author) |
1364 | return FALSE; | |
22f66b0a | 1365 | |
22f66b0a | 1366 | if (view->offset + lineno == view->lineno) { |
03a93dbb | 1367 | string_copy(view->ref, commit->id); |
49f2b43f | 1368 | string_copy(ref_commit, view->ref); |
78c70acd JF |
1369 | type = LINE_CURSOR; |
1370 | } else { | |
b76c2afc JF |
1371 | type = LINE_MAIN_COMMIT; |
1372 | } | |
1373 | ||
1374 | wmove(view->win, lineno, cols); | |
1375 | wattrset(view->win, get_line_attr(LINE_MAIN_DATE)); | |
1376 | ||
4c6fabc2 | 1377 | timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time); |
b76c2afc | 1378 | waddnstr(view->win, buf, timelen); |
4c6fabc2 | 1379 | waddstr(view->win, " "); |
b76c2afc | 1380 | |
4c6fabc2 | 1381 | cols += DATE_COLS; |
b76c2afc JF |
1382 | wmove(view->win, lineno, cols); |
1383 | wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR)); | |
1384 | ||
1385 | if (strlen(commit->author) > 19) { | |
1386 | waddnstr(view->win, commit->author, 18); | |
1387 | wattrset(view->win, get_line_attr(LINE_MAIN_DELIM)); | |
1388 | waddch(view->win, '~'); | |
1389 | } else { | |
1390 | waddstr(view->win, commit->author); | |
22f66b0a JF |
1391 | } |
1392 | ||
b76c2afc JF |
1393 | cols += 20; |
1394 | wattrset(view->win, A_NORMAL); | |
1395 | mvwaddch(view->win, lineno, cols, ACS_LTEE); | |
78c70acd | 1396 | wattrset(view->win, get_line_attr(type)); |
b76c2afc | 1397 | mvwaddstr(view->win, lineno, cols + 2, commit->title); |
22f66b0a JF |
1398 | wattrset(view->win, A_NORMAL); |
1399 | ||
1400 | return TRUE; | |
1401 | } | |
1402 | ||
4c6fabc2 | 1403 | /* Reads git log --pretty=raw output and parses it into the commit struct. */ |
6b161b31 | 1404 | static bool |
22f66b0a JF |
1405 | main_read(struct view *view, char *line) |
1406 | { | |
78c70acd JF |
1407 | enum line_type type = get_line_type(line); |
1408 | struct commit *commit; | |
22f66b0a | 1409 | |
78c70acd JF |
1410 | switch (type) { |
1411 | case LINE_COMMIT: | |
22f66b0a JF |
1412 | commit = calloc(1, sizeof(struct commit)); |
1413 | if (!commit) | |
1414 | return FALSE; | |
1415 | ||
4c6fabc2 | 1416 | line += STRING_SIZE("commit "); |
b76c2afc | 1417 | |
22f66b0a | 1418 | view->line[view->lines++] = commit; |
82e78006 | 1419 | string_copy(commit->id, line); |
78c70acd | 1420 | break; |
22f66b0a | 1421 | |
b76c2afc JF |
1422 | case LINE_AUTHOR_IDENT: |
1423 | { | |
4c6fabc2 | 1424 | char *ident = line + STRING_SIZE("author "); |
b76c2afc JF |
1425 | char *end = strchr(ident, '<'); |
1426 | ||
1427 | if (end) { | |
1428 | for (; end > ident && isspace(end[-1]); end--) ; | |
1429 | *end = 0; | |
1430 | } | |
1431 | ||
1432 | commit = view->line[view->lines - 1]; | |
82e78006 | 1433 | string_copy(commit->author, ident); |
b76c2afc | 1434 | |
4c6fabc2 | 1435 | /* Parse epoch and timezone */ |
b76c2afc JF |
1436 | if (end) { |
1437 | char *secs = strchr(end + 1, '>'); | |
1438 | char *zone; | |
1439 | time_t time; | |
1440 | ||
1441 | if (!secs || secs[1] != ' ') | |
1442 | break; | |
1443 | ||
1444 | secs += 2; | |
1445 | time = (time_t) atol(secs); | |
1446 | zone = strchr(secs, ' '); | |
4c6fabc2 | 1447 | if (zone && strlen(zone) == STRING_SIZE(" +0700")) { |
b76c2afc JF |
1448 | long tz; |
1449 | ||
1450 | zone++; | |
1451 | tz = ('0' - zone[1]) * 60 * 60 * 10; | |
1452 | tz += ('0' - zone[2]) * 60 * 60; | |
1453 | tz += ('0' - zone[3]) * 60; | |
1454 | tz += ('0' - zone[4]) * 60; | |
1455 | ||
1456 | if (zone[0] == '-') | |
1457 | tz = -tz; | |
1458 | ||
1459 | time -= tz; | |
1460 | } | |
1461 | gmtime_r(&time, &commit->time); | |
1462 | } | |
1463 | break; | |
1464 | } | |
78c70acd | 1465 | default: |
2e8488b4 JF |
1466 | /* We should only ever end up here if there has already been a |
1467 | * commit line, however, be safe. */ | |
1468 | if (view->lines == 0) | |
1469 | break; | |
1470 | ||
1471 | /* Fill in the commit title if it has not already been set. */ | |
78c70acd | 1472 | commit = view->line[view->lines - 1]; |
2e8488b4 JF |
1473 | if (commit->title[0]) |
1474 | break; | |
1475 | ||
1476 | /* Require titles to start with a non-space character at the | |
1477 | * offset used by git log. */ | |
1478 | if (strncmp(line, " ", 4) || | |
82e78006 JF |
1479 | isspace(line[5])) |
1480 | break; | |
1481 | ||
1482 | string_copy(commit->title, line + 4); | |
22f66b0a JF |
1483 | } |
1484 | ||
1485 | return TRUE; | |
1486 | } | |
1487 | ||
6b161b31 JF |
1488 | static bool |
1489 | main_enter(struct view *view) | |
b801d8b2 | 1490 | { |
49f2b43f | 1491 | open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT | OPEN_BACKGROUNDED); |
6b161b31 | 1492 | return TRUE; |
b801d8b2 JF |
1493 | } |
1494 | ||
6b161b31 JF |
1495 | static struct view_ops main_ops = { |
1496 | main_draw, | |
1497 | main_read, | |
1498 | main_enter, | |
1499 | }; | |
2e8488b4 | 1500 | |
6b161b31 JF |
1501 | /* |
1502 | * Status management | |
1503 | */ | |
2e8488b4 | 1504 | |
6b161b31 JF |
1505 | /* The status window is used for polling keystrokes. */ |
1506 | static WINDOW *status_win; | |
4a2909a7 | 1507 | |
2e8488b4 | 1508 | /* Update status and title window. */ |
4a2909a7 JF |
1509 | static void |
1510 | report(const char *msg, ...) | |
1511 | { | |
1512 | va_list args; | |
b76c2afc | 1513 | |
b801d8b2 JF |
1514 | va_start(args, msg); |
1515 | ||
2e8488b4 JF |
1516 | /* Update the title window first, so the cursor ends up in the status |
1517 | * window. */ | |
6b161b31 | 1518 | update_view_title(display[current_view]); |
4a2909a7 | 1519 | |
b801d8b2 JF |
1520 | werase(status_win); |
1521 | wmove(status_win, 0, 0); | |
b801d8b2 JF |
1522 | vwprintw(status_win, msg, args); |
1523 | wrefresh(status_win); | |
1524 | ||
1525 | va_end(args); | |
b801d8b2 JF |
1526 | } |
1527 | ||
6b161b31 JF |
1528 | /* Controls when nodelay should be in effect when polling user input. */ |
1529 | static void | |
1530 | set_nonblocking_input(int loading) | |
b801d8b2 | 1531 | { |
6b161b31 JF |
1532 | /* The number of loading views. */ |
1533 | static unsigned int nloading; | |
b801d8b2 | 1534 | |
6b161b31 JF |
1535 | if (loading == TRUE) { |
1536 | if (nloading++ == 0) | |
1537 | nodelay(status_win, TRUE); | |
1538 | return; | |
82e78006 | 1539 | } |
b76c2afc | 1540 | |
6b161b31 JF |
1541 | if (nloading-- == 1) |
1542 | nodelay(status_win, FALSE); | |
1543 | } | |
1544 | ||
1545 | static void | |
1546 | init_display(void) | |
1547 | { | |
1548 | int x, y; | |
b76c2afc | 1549 | |
6908bdbd JF |
1550 | /* Initialize the curses library */ |
1551 | if (isatty(STDIN_FILENO)) { | |
1552 | initscr(); | |
1553 | } else { | |
1554 | /* Leave stdin and stdout alone when acting as a pager. */ | |
1555 | FILE *io = fopen("/dev/tty", "r+"); | |
1556 | ||
1557 | newterm(NULL, io, io); | |
1558 | } | |
1559 | ||
2e8488b4 JF |
1560 | nonl(); /* Tell curses not to do NL->CR/NL on output */ |
1561 | cbreak(); /* Take input chars one at a time, no wait for \n */ | |
1562 | noecho(); /* Don't echo input */ | |
b801d8b2 | 1563 | leaveok(stdscr, TRUE); |
b801d8b2 JF |
1564 | |
1565 | if (has_colors()) | |
1566 | init_colors(); | |
1567 | ||
1568 | getmaxyx(stdscr, y, x); | |
1569 | status_win = newwin(1, 0, y - 1, 0); | |
1570 | if (!status_win) | |
1571 | die("Failed to create status window"); | |
1572 | ||
1573 | /* Enable keyboard mapping */ | |
1574 | keypad(status_win, TRUE); | |
78c70acd | 1575 | wbkgdset(status_win, get_line_attr(LINE_STATUS)); |
6b161b31 JF |
1576 | } |
1577 | ||
1578 | /* | |
1579 | * Main | |
1580 | */ | |
1581 | ||
1582 | static void | |
1583 | quit(int sig) | |
1584 | { | |
1585 | if (status_win) | |
1586 | delwin(status_win); | |
1587 | endwin(); | |
1588 | ||
1589 | /* FIXME: Shutdown gracefully. */ | |
1590 | ||
1591 | exit(0); | |
1592 | } | |
1593 | ||
1594 | static void die(const char *err, ...) | |
1595 | { | |
1596 | va_list args; | |
1597 | ||
1598 | endwin(); | |
1599 | ||
1600 | va_start(args, err); | |
1601 | fputs("tig: ", stderr); | |
1602 | vfprintf(stderr, err, args); | |
1603 | fputs("\n", stderr); | |
1604 | va_end(args); | |
1605 | ||
1606 | exit(1); | |
1607 | } | |
1608 | ||
1609 | int | |
1610 | main(int argc, char *argv[]) | |
1611 | { | |
1612 | enum request request; | |
03a93dbb | 1613 | int git_arg; |
6b161b31 JF |
1614 | |
1615 | signal(SIGINT, quit); | |
1616 | ||
03a93dbb JF |
1617 | git_arg = parse_options(argc, argv); |
1618 | if (git_arg < 0) | |
6b161b31 JF |
1619 | return 0; |
1620 | ||
6b161b31 JF |
1621 | request = opt_request; |
1622 | ||
1623 | init_display(); | |
b801d8b2 JF |
1624 | |
1625 | while (view_driver(display[current_view], request)) { | |
1626 | struct view *view; | |
6b161b31 | 1627 | int key; |
b801d8b2 JF |
1628 | int i; |
1629 | ||
6b161b31 JF |
1630 | foreach_view (view, i) |
1631 | update_view(view); | |
b801d8b2 JF |
1632 | |
1633 | /* Refresh, accept single keystroke of input */ | |
6b161b31 JF |
1634 | key = wgetch(status_win); |
1635 | request = get_request(key); | |
03a93dbb JF |
1636 | |
1637 | if (request == REQ_PROMPT) { | |
6908bdbd JF |
1638 | report(":"); |
1639 | /* Temporarily switch to line-oriented and echoed | |
1640 | * input. */ | |
03a93dbb JF |
1641 | nocbreak(); |
1642 | echo(); | |
49f2b43f JF |
1643 | |
1644 | if (wgetnstr(status_win, opt_cmd + 4, sizeof(opt_cmd) - 4) == OK) { | |
1645 | memcpy(opt_cmd, "git ", 4); | |
1646 | opt_request = REQ_VIEW_PAGER; | |
1647 | } else { | |
1648 | request = ERR; | |
1649 | } | |
1650 | ||
6908bdbd JF |
1651 | noecho(); |
1652 | cbreak(); | |
03a93dbb | 1653 | } |
b801d8b2 JF |
1654 | } |
1655 | ||
1656 | quit(0); | |
1657 | ||
1658 | return 0; | |
1659 | } | |
1660 | ||
1661 | /** | |
4c6fabc2 JF |
1662 | * TODO |
1663 | * ---- | |
1664 | * Features that should be explored. | |
1665 | * | |
82e78006 JF |
1666 | * - Dynamic scaling of line number indentation. |
1667 | * | |
82e78006 JF |
1668 | * - Internal command line (exmode-inspired) which allows to specify what git |
1669 | * log or git diff command to run. Example: | |
4c6fabc2 JF |
1670 | * |
1671 | * :log -p | |
1672 | * | |
03a93dbb JF |
1673 | * - Terminal resizing support. I am yet to figure out whether catching |
1674 | * SIGWINCH is preferred over using ncurses' built-in support for resizing. | |
4c6fabc2 JF |
1675 | * |
1676 | * - Locale support. | |
1677 | * | |
b801d8b2 JF |
1678 | * COPYRIGHT |
1679 | * --------- | |
4a2909a7 | 1680 | * Copyright (c) Jonas Fonseca <fonseca@diku.dk>, 2006 |
b801d8b2 JF |
1681 | * |
1682 | * This program is free software; you can redistribute it and/or modify | |
1683 | * it under the terms of the GNU General Public License as published by | |
1684 | * the Free Software Foundation; either version 2 of the License, or | |
1685 | * (at your option) any later version. | |
1686 | * | |
1687 | * SEE ALSO | |
1688 | * -------- | |
4c6fabc2 | 1689 | * [verse] |
b801d8b2 JF |
1690 | * link:http://www.kernel.org/pub/software/scm/git/docs/[git(7)], |
1691 | * link:http://www.kernel.org/pub/software/scm/cogito/docs/[cogito(7)] | |
4c6fabc2 JF |
1692 | * gitk(1): git repository browser written using tcl/tk, |
1693 | * gitview(1): git repository browser written using python/gtk. | |
b801d8b2 | 1694 | **/ |