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