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] | |
8855ada4 JF |
18 | * tig [options] show [git show options] |
19 | * tig [options] < [git command output] | |
b801d8b2 JF |
20 | * |
21 | * DESCRIPTION | |
22 | * ----------- | |
6706b2ba JF |
23 | * Browse changes in a git repository. Additionally, tig(1) can also act |
24 | * as a pager for output of various git commands. | |
25 | * | |
57bdf034 | 26 | * When browsing repositories, tig(1) uses the underlying git commands |
468876c9 JF |
27 | * to present the user with various views, such as summarized commit log |
28 | * and showing the commit with the log message, diffstat, and the diff. | |
6706b2ba | 29 | * |
468876c9 JF |
30 | * Using tig(1) as a pager, it will display input from stdin and try |
31 | * to colorize it. | |
b801d8b2 JF |
32 | **/ |
33 | ||
b76c2afc | 34 | #ifndef VERSION |
8c11094f | 35 | #define VERSION "tig-0.3" |
b76c2afc JF |
36 | #endif |
37 | ||
8855ada4 JF |
38 | #ifndef DEBUG |
39 | #define NDEBUG | |
40 | #endif | |
41 | ||
22f66b0a | 42 | #include <assert.h> |
4c6fabc2 | 43 | #include <errno.h> |
22f66b0a JF |
44 | #include <ctype.h> |
45 | #include <signal.h> | |
b801d8b2 | 46 | #include <stdarg.h> |
b801d8b2 | 47 | #include <stdio.h> |
22f66b0a | 48 | #include <stdlib.h> |
b801d8b2 | 49 | #include <string.h> |
6908bdbd | 50 | #include <unistd.h> |
b76c2afc | 51 | #include <time.h> |
b801d8b2 JF |
52 | |
53 | #include <curses.h> | |
b801d8b2 JF |
54 | |
55 | static void die(const char *err, ...); | |
56 | static void report(const char *msg, ...); | |
1ba2ae4b | 57 | static void set_nonblocking_input(bool loading); |
6b161b31 JF |
58 | |
59 | #define ABS(x) ((x) >= 0 ? (x) : -(x)) | |
60 | #define MIN(x, y) ((x) < (y) ? (x) : (y)) | |
61 | ||
62 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) | |
63 | #define STRING_SIZE(x) (sizeof(x) - 1) | |
b76c2afc | 64 | |
2e8488b4 JF |
65 | #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */ |
66 | #define SIZEOF_CMD 1024 /* Size of command buffer. */ | |
b801d8b2 | 67 | |
82e78006 JF |
68 | /* This color name can be used to refer to the default term colors. */ |
69 | #define COLOR_DEFAULT (-1) | |
78c70acd | 70 | |
67e48ac5 | 71 | #define TIG_HELP "(d)iff, (l)og, (m)ain, (q)uit, (h)elp" |
468876c9 | 72 | |
82e78006 | 73 | /* The format and size of the date column in the main view. */ |
4c6fabc2 | 74 | #define DATE_FORMAT "%Y-%m-%d %H:%M" |
6b161b31 | 75 | #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ") |
4c6fabc2 | 76 | |
a28bcc22 | 77 | /* The default interval between line numbers. */ |
4a2909a7 | 78 | #define NUMBER_INTERVAL 1 |
82e78006 | 79 | |
6706b2ba JF |
80 | #define TABSIZE 8 |
81 | ||
a28bcc22 JF |
82 | #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3) |
83 | ||
8855ada4 | 84 | /* Some ascii-shorthands fitted into the ncurses namespace. */ |
a28bcc22 JF |
85 | #define KEY_TAB '\t' |
86 | #define KEY_RETURN '\r' | |
4a2909a7 JF |
87 | #define KEY_ESC 27 |
88 | ||
6706b2ba | 89 | |
a28bcc22 | 90 | /* User action requests. */ |
4a2909a7 | 91 | enum request { |
a28bcc22 JF |
92 | /* Offset all requests to avoid conflicts with ncurses getch values. */ |
93 | REQ_OFFSET = KEY_MAX + 1, | |
94 | ||
4a2909a7 | 95 | /* XXX: Keep the view request first and in sync with views[]. */ |
2e8488b4 | 96 | REQ_VIEW_MAIN, |
4a2909a7 JF |
97 | REQ_VIEW_DIFF, |
98 | REQ_VIEW_LOG, | |
2e8488b4 | 99 | REQ_VIEW_HELP, |
6908bdbd | 100 | REQ_VIEW_PAGER, |
4a2909a7 | 101 | |
6b161b31 | 102 | REQ_ENTER, |
03a93dbb JF |
103 | REQ_QUIT, |
104 | REQ_PROMPT, | |
4a2909a7 | 105 | REQ_SCREEN_REDRAW, |
fac7db6c | 106 | REQ_SCREEN_RESIZE, |
4a2909a7 | 107 | REQ_SCREEN_UPDATE, |
03a93dbb JF |
108 | REQ_SHOW_VERSION, |
109 | REQ_STOP_LOADING, | |
4a2909a7 | 110 | REQ_TOGGLE_LINE_NUMBERS, |
03a93dbb | 111 | REQ_VIEW_NEXT, |
4f9b667a | 112 | REQ_VIEW_CLOSE, |
4a2909a7 JF |
113 | |
114 | REQ_MOVE_UP, | |
6706b2ba | 115 | REQ_MOVE_UP_ENTER, |
4a2909a7 | 116 | REQ_MOVE_DOWN, |
6706b2ba | 117 | REQ_MOVE_DOWN_ENTER, |
4a2909a7 JF |
118 | REQ_MOVE_PAGE_UP, |
119 | REQ_MOVE_PAGE_DOWN, | |
120 | REQ_MOVE_FIRST_LINE, | |
121 | REQ_MOVE_LAST_LINE, | |
122 | ||
123 | REQ_SCROLL_LINE_UP, | |
124 | REQ_SCROLL_LINE_DOWN, | |
125 | REQ_SCROLL_PAGE_UP, | |
126 | REQ_SCROLL_PAGE_DOWN, | |
127 | }; | |
128 | ||
c34d9c9f | 129 | struct ref { |
468876c9 JF |
130 | char *name; /* Ref name; tag or head names are shortened. */ |
131 | char id[41]; /* Commit SHA1 ID */ | |
132 | unsigned int tag:1; /* Is it a tag? */ | |
133 | unsigned int next:1; /* For ref lists: are there more refs? */ | |
c34d9c9f JF |
134 | }; |
135 | ||
4c6fabc2 | 136 | struct commit { |
a28bcc22 | 137 | char id[41]; /* SHA1 ID. */ |
6b161b31 | 138 | char title[75]; /* The first line of the commit message. */ |
a28bcc22 JF |
139 | char author[75]; /* The author of the commit. */ |
140 | struct tm time; /* Date from the author ident. */ | |
c34d9c9f | 141 | struct ref **refs; /* Repository references; tags & branch heads. */ |
4c6fabc2 JF |
142 | }; |
143 | ||
6706b2ba | 144 | |
03a93dbb JF |
145 | /* |
146 | * String helpers | |
147 | */ | |
78c70acd | 148 | |
82e78006 | 149 | static inline void |
4685845e | 150 | string_ncopy(char *dst, const char *src, int dstlen) |
82e78006 JF |
151 | { |
152 | strncpy(dst, src, dstlen - 1); | |
153 | dst[dstlen - 1] = 0; | |
03a93dbb | 154 | |
82e78006 JF |
155 | } |
156 | ||
157 | /* Shorthand for safely copying into a fixed buffer. */ | |
158 | #define string_copy(dst, src) \ | |
159 | string_ncopy(dst, src, sizeof(dst)) | |
160 | ||
6706b2ba | 161 | |
03a93dbb JF |
162 | /* Shell quoting |
163 | * | |
164 | * NOTE: The following is a slightly modified copy of the git project's shell | |
165 | * quoting routines found in the quote.c file. | |
166 | * | |
167 | * Help to copy the thing properly quoted for the shell safety. any single | |
168 | * quote is replaced with '\'', any exclamation point is replaced with '\!', | |
169 | * and the whole thing is enclosed in a | |
170 | * | |
171 | * E.g. | |
172 | * original sq_quote result | |
173 | * name ==> name ==> 'name' | |
174 | * a b ==> a b ==> 'a b' | |
175 | * a'b ==> a'\''b ==> 'a'\''b' | |
176 | * a!b ==> a'\!'b ==> 'a'\!'b' | |
177 | */ | |
178 | ||
179 | static size_t | |
180 | sq_quote(char buf[SIZEOF_CMD], size_t bufsize, const char *src) | |
181 | { | |
182 | char c; | |
183 | ||
a9274b95 | 184 | #define BUFPUT(x) do { if (bufsize < SIZEOF_CMD) buf[bufsize++] = (x); } while (0) |
03a93dbb JF |
185 | |
186 | BUFPUT('\''); | |
187 | while ((c = *src++)) { | |
188 | if (c == '\'' || c == '!') { | |
189 | BUFPUT('\''); | |
190 | BUFPUT('\\'); | |
191 | BUFPUT(c); | |
192 | BUFPUT('\''); | |
193 | } else { | |
194 | BUFPUT(c); | |
195 | } | |
196 | } | |
197 | BUFPUT('\''); | |
198 | ||
199 | return bufsize; | |
200 | } | |
201 | ||
82e78006 | 202 | |
b76c2afc JF |
203 | /** |
204 | * OPTIONS | |
205 | * ------- | |
206 | **/ | |
207 | ||
6706b2ba JF |
208 | /* Option and state variables. */ |
209 | static bool opt_line_number = FALSE; | |
2e8488b4 | 210 | static int opt_num_interval = NUMBER_INTERVAL; |
6706b2ba | 211 | static int opt_tab_size = TABSIZE; |
6b161b31 | 212 | static enum request opt_request = REQ_VIEW_MAIN; |
03a93dbb | 213 | static char opt_cmd[SIZEOF_CMD] = ""; |
6908bdbd | 214 | static FILE *opt_pipe = NULL; |
b76c2afc | 215 | |
b76c2afc | 216 | /* Returns the index of log or diff command or -1 to exit. */ |
8855ada4 | 217 | static bool |
b76c2afc JF |
218 | parse_options(int argc, char *argv[]) |
219 | { | |
220 | int i; | |
221 | ||
222 | for (i = 1; i < argc; i++) { | |
223 | char *opt = argv[i]; | |
224 | ||
225 | /** | |
b76c2afc | 226 | * -l:: |
1ba2ae4b | 227 | * Start up in log view using the internal log command. |
b76c2afc | 228 | **/ |
6b161b31 | 229 | if (!strcmp(opt, "-l")) { |
4a2909a7 | 230 | opt_request = REQ_VIEW_LOG; |
6b161b31 JF |
231 | continue; |
232 | } | |
b76c2afc JF |
233 | |
234 | /** | |
235 | * -d:: | |
1ba2ae4b | 236 | * Start up in diff view using the internal diff command. |
b76c2afc | 237 | **/ |
6b161b31 | 238 | if (!strcmp(opt, "-d")) { |
4a2909a7 | 239 | opt_request = REQ_VIEW_DIFF; |
6b161b31 JF |
240 | continue; |
241 | } | |
b76c2afc JF |
242 | |
243 | /** | |
2e8488b4 | 244 | * -n[INTERVAL], --line-number[=INTERVAL]:: |
b76c2afc | 245 | * Prefix line numbers in log and diff view. |
2e8488b4 | 246 | * Optionally, with interval different than each line. |
b76c2afc | 247 | **/ |
6b161b31 | 248 | if (!strncmp(opt, "-n", 2) || |
8855ada4 | 249 | !strncmp(opt, "--line-number", 13)) { |
2e8488b4 JF |
250 | char *num = opt; |
251 | ||
252 | if (opt[1] == 'n') { | |
253 | num = opt + 2; | |
254 | ||
255 | } else if (opt[STRING_SIZE("--line-number")] == '=') { | |
256 | num = opt + STRING_SIZE("--line-number="); | |
257 | } | |
258 | ||
259 | if (isdigit(*num)) | |
260 | opt_num_interval = atoi(num); | |
261 | ||
6b161b31 JF |
262 | opt_line_number = TRUE; |
263 | continue; | |
264 | } | |
b76c2afc JF |
265 | |
266 | /** | |
6706b2ba JF |
267 | * -t[NSPACES], --tab-size[=NSPACES]:: |
268 | * Set the number of spaces tabs should be expanded to. | |
269 | **/ | |
270 | if (!strncmp(opt, "-t", 2) || | |
271 | !strncmp(opt, "--tab-size", 10)) { | |
272 | char *num = opt; | |
273 | ||
274 | if (opt[1] == 't') { | |
275 | num = opt + 2; | |
276 | ||
277 | } else if (opt[STRING_SIZE("--tab-size")] == '=') { | |
278 | num = opt + STRING_SIZE("--tab-size="); | |
279 | } | |
280 | ||
281 | if (isdigit(*num)) | |
282 | opt_tab_size = MIN(atoi(num), TABSIZE); | |
283 | continue; | |
284 | } | |
285 | ||
286 | /** | |
b76c2afc JF |
287 | * -v, --version:: |
288 | * Show version and exit. | |
289 | **/ | |
6b161b31 | 290 | if (!strcmp(opt, "-v") || |
8855ada4 | 291 | !strcmp(opt, "--version")) { |
b76c2afc | 292 | printf("tig version %s\n", VERSION); |
8855ada4 | 293 | return FALSE; |
6b161b31 | 294 | } |
b76c2afc JF |
295 | |
296 | /** | |
03a93dbb | 297 | * \--:: |
0721c53a | 298 | * End of tig(1) options. Useful when specifying command |
d44f34bf | 299 | * options for the main view. Example: |
03a93dbb | 300 | * |
889cb462 | 301 | * $ tig -- --since=1.month |
b76c2afc | 302 | **/ |
6908bdbd JF |
303 | if (!strcmp(opt, "--")) { |
304 | i++; | |
305 | break; | |
306 | } | |
03a93dbb | 307 | |
8855ada4 | 308 | /** |
d44f34bf | 309 | * log [git log options]:: |
8855ada4 JF |
310 | * Open log view using the given git log options. |
311 | * | |
d44f34bf | 312 | * diff [git diff options]:: |
8855ada4 JF |
313 | * Open diff view using the given git diff options. |
314 | * | |
d44f34bf | 315 | * show [git show options]:: |
8855ada4 JF |
316 | * Open diff view using the given git show options. |
317 | **/ | |
318 | if (!strcmp(opt, "log") || | |
319 | !strcmp(opt, "diff") || | |
320 | !strcmp(opt, "show")) { | |
321 | opt_request = opt[0] == 'l' | |
322 | ? REQ_VIEW_LOG : REQ_VIEW_DIFF; | |
323 | break; | |
324 | } | |
325 | ||
d44f34bf | 326 | /** |
57bdf034 | 327 | * [git log options]:: |
d44f34bf JF |
328 | * tig(1) will stop the option parsing when the first |
329 | * command line parameter not starting with "-" is | |
57bdf034 JF |
330 | * encountered. All options including this one will be |
331 | * passed to git log when loading the main view. | |
332 | * This makes it possible to say: | |
889cb462 | 333 | * |
03a93dbb | 334 | * $ tig tag-1.0..HEAD |
d44f34bf | 335 | **/ |
03a93dbb | 336 | if (opt[0] && opt[0] != '-') |
6908bdbd | 337 | break; |
6b161b31 JF |
338 | |
339 | die("unknown command '%s'", opt); | |
b76c2afc JF |
340 | } |
341 | ||
6908bdbd | 342 | if (!isatty(STDIN_FILENO)) { |
8855ada4 JF |
343 | /** |
344 | * Pager mode | |
345 | * ~~~~~~~~~~ | |
346 | * If stdin is a pipe, any log or diff options will be ignored and the | |
347 | * pager view will be opened loading data from stdin. The pager mode | |
348 | * can be used for colorizing output from various git commands. | |
349 | * | |
350 | * Example on how to colorize the output of git-show(1): | |
351 | * | |
352 | * $ git show | tig | |
353 | **/ | |
6908bdbd JF |
354 | opt_request = REQ_VIEW_PAGER; |
355 | opt_pipe = stdin; | |
356 | ||
357 | } else if (i < argc) { | |
358 | size_t buf_size; | |
359 | ||
8855ada4 JF |
360 | /** |
361 | * Git command options | |
362 | * ~~~~~~~~~~~~~~~~~~~ | |
8855ada4 JF |
363 | * All git command options specified on the command line will |
364 | * be passed to the given command and all will be shell quoted | |
468876c9 | 365 | * before they are passed to the shell. |
8855ada4 | 366 | * |
468876c9 JF |
367 | * NOTE: If you specify options for the main view, you should |
368 | * not use the `--pretty` option as this option will be set | |
369 | * automatically to the format expected by the main view. | |
8855ada4 JF |
370 | * |
371 | * Example on how to open the log view and show both author and | |
372 | * committer information: | |
373 | * | |
374 | * $ tig log --pretty=fuller | |
468876c9 | 375 | * |
0721c53a JF |
376 | * See the <<refspec, "Specifying revisions">> section below |
377 | * for an introduction to revision options supported by the git | |
378 | * commands. For details on specific git command options, refer | |
379 | * to the man page of the command in question. | |
8855ada4 JF |
380 | **/ |
381 | ||
6908bdbd | 382 | if (opt_request == REQ_VIEW_MAIN) |
8855ada4 JF |
383 | /* XXX: This is vulnerable to the user overriding |
384 | * options required for the main view parser. */ | |
6908bdbd JF |
385 | string_copy(opt_cmd, "git log --stat --pretty=raw"); |
386 | else | |
387 | string_copy(opt_cmd, "git"); | |
388 | buf_size = strlen(opt_cmd); | |
389 | ||
390 | while (buf_size < sizeof(opt_cmd) && i < argc) { | |
391 | opt_cmd[buf_size++] = ' '; | |
392 | buf_size = sq_quote(opt_cmd, buf_size, argv[i++]); | |
393 | } | |
394 | ||
395 | if (buf_size >= sizeof(opt_cmd)) | |
396 | die("command too long"); | |
397 | ||
398 | opt_cmd[buf_size] = 0; | |
399 | ||
400 | } | |
401 | ||
8855ada4 | 402 | return TRUE; |
b76c2afc JF |
403 | } |
404 | ||
405 | ||
406 | /* | |
407 | * Line-oriented content detection. | |
6b161b31 JF |
408 | */ |
409 | ||
2e8488b4 | 410 | #define LINE_INFO \ |
6b161b31 JF |
411 | /* Line type String to match Foreground Background Attributes |
412 | * --------- --------------- ---------- ---------- ---------- */ \ | |
a28bcc22 JF |
413 | /* Diff markup */ \ |
414 | LINE(DIFF, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
8855ada4 | 415 | LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
416 | LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
417 | LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
418 | LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \ | |
3af8774e JF |
419 | LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
420 | LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
a28bcc22 JF |
421 | LINE(DIFF_COPY, "copy ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
422 | LINE(DIFF_RENAME, "rename ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
423 | LINE(DIFF_SIM, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
424 | LINE(DIFF_DISSIM, "dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
425 | /* Pretty print commit header */ \ | |
6908bdbd | 426 | LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
8855ada4 | 427 | LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
6908bdbd JF |
428 | LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
429 | LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
8855ada4 JF |
430 | LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
431 | LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
a28bcc22 JF |
432 | /* Raw commit header */ \ |
433 | LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
434 | LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
435 | LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
8855ada4 | 436 | LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
437 | LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
438 | /* Misc */ \ | |
439 | LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
440 | LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
441 | /* UI colors */ \ | |
442 | LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \ | |
443 | LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \ | |
444 | LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
6b161b31 JF |
445 | LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \ |
446 | LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \ | |
a28bcc22 JF |
447 | LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
448 | LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
449 | LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \ | |
c34d9c9f JF |
450 | LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
451 | LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \ | |
452 | LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), | |
2e8488b4 | 453 | |
78c70acd | 454 | enum line_type { |
2e8488b4 JF |
455 | #define LINE(type, line, fg, bg, attr) \ |
456 | LINE_##type | |
457 | LINE_INFO | |
458 | #undef LINE | |
78c70acd JF |
459 | }; |
460 | ||
461 | struct line_info { | |
4685845e | 462 | const char *line; /* The start of line to match. */ |
2e8488b4 JF |
463 | int linelen; /* Size of string to match. */ |
464 | int fg, bg, attr; /* Color and text attributes for the lines. */ | |
78c70acd JF |
465 | }; |
466 | ||
2e8488b4 | 467 | static struct line_info line_info[] = { |
78c70acd | 468 | #define LINE(type, line, fg, bg, attr) \ |
a28bcc22 | 469 | { (line), STRING_SIZE(line), (fg), (bg), (attr) } |
2e8488b4 JF |
470 | LINE_INFO |
471 | #undef LINE | |
78c70acd JF |
472 | }; |
473 | ||
2e8488b4 JF |
474 | static enum line_type |
475 | get_line_type(char *line) | |
78c70acd JF |
476 | { |
477 | int linelen = strlen(line); | |
a28bcc22 | 478 | enum line_type type; |
78c70acd | 479 | |
a28bcc22 | 480 | for (type = 0; type < ARRAY_SIZE(line_info); type++) |
2e8488b4 | 481 | /* Case insensitive search matches Signed-off-by lines better. */ |
a28bcc22 JF |
482 | if (linelen >= line_info[type].linelen && |
483 | !strncasecmp(line_info[type].line, line, line_info[type].linelen)) | |
484 | return type; | |
78c70acd | 485 | |
2e8488b4 | 486 | return LINE_DEFAULT; |
78c70acd JF |
487 | } |
488 | ||
2e8488b4 | 489 | static inline int |
78c70acd JF |
490 | get_line_attr(enum line_type type) |
491 | { | |
2e8488b4 JF |
492 | assert(type < ARRAY_SIZE(line_info)); |
493 | return COLOR_PAIR(type) | line_info[type].attr; | |
78c70acd JF |
494 | } |
495 | ||
496 | static void | |
497 | init_colors(void) | |
498 | { | |
82e78006 JF |
499 | int default_bg = COLOR_BLACK; |
500 | int default_fg = COLOR_WHITE; | |
a28bcc22 | 501 | enum line_type type; |
78c70acd JF |
502 | |
503 | start_color(); | |
504 | ||
505 | if (use_default_colors() != ERR) { | |
82e78006 JF |
506 | default_bg = -1; |
507 | default_fg = -1; | |
78c70acd JF |
508 | } |
509 | ||
a28bcc22 JF |
510 | for (type = 0; type < ARRAY_SIZE(line_info); type++) { |
511 | struct line_info *info = &line_info[type]; | |
82e78006 JF |
512 | int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg; |
513 | int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg; | |
78c70acd | 514 | |
a28bcc22 | 515 | init_pair(type, fg, bg); |
78c70acd JF |
516 | } |
517 | } | |
518 | ||
519 | ||
1ba2ae4b JF |
520 | /** |
521 | * ENVIRONMENT VARIABLES | |
522 | * --------------------- | |
c34d9c9f JF |
523 | * Several options related to the interface with git can be configured |
524 | * via environment options. | |
525 | * | |
526 | * Repository references | |
527 | * ~~~~~~~~~~~~~~~~~~~~~ | |
528 | * Commits that are referenced by tags and branch heads will be marked | |
529 | * by the reference name surrounded by '[' and ']': | |
530 | * | |
468876c9 | 531 | * 2006-03-26 19:42 Petr Baudis | [cogito-0.17.1] Cogito 0.17.1 |
c34d9c9f JF |
532 | * |
533 | * If you want to filter out certain directories under `.git/refs/`, say | |
534 | * `tmp` you can do it by setting the following variable: | |
535 | * | |
6706b2ba | 536 | * $ TIG_LS_REMOTE="git ls-remote . | sed /\/tmp\//d" tig |
c34d9c9f JF |
537 | * |
538 | * Or set the variable permanently in your environment. | |
539 | * | |
540 | * TIG_LS_REMOTE:: | |
6706b2ba JF |
541 | * Set command for retrieving all repository references. The command |
542 | * should output data in the same format as git-ls-remote(1). | |
c34d9c9f JF |
543 | **/ |
544 | ||
545 | #define TIG_LS_REMOTE \ | |
1b4b0bd9 | 546 | "git ls-remote . 2>/dev/null" |
c34d9c9f JF |
547 | |
548 | /** | |
0721c53a | 549 | * [[view-commands]] |
c34d9c9f JF |
550 | * View commands |
551 | * ~~~~~~~~~~~~~ | |
1ba2ae4b | 552 | * It is possible to alter which commands are used for the different views. |
6706b2ba JF |
553 | * If for example you prefer commits in the main view to be sorted by date |
554 | * and only show 500 commits, use: | |
1ba2ae4b JF |
555 | * |
556 | * $ TIG_MAIN_CMD="git log --date-order -n500 --pretty=raw %s" tig | |
557 | * | |
558 | * Or set the variable permanently in your environment. | |
559 | * | |
560 | * Notice, how `%s` is used to specify the commit reference. There can | |
561 | * be a maximum of 5 `%s` ref specifications. | |
562 | * | |
563 | * TIG_DIFF_CMD:: | |
564 | * The command used for the diff view. By default, git show is used | |
565 | * as a backend. | |
566 | * | |
567 | * TIG_LOG_CMD:: | |
6706b2ba JF |
568 | * The command used for the log view. If you prefer to have both |
569 | * author and committer shown in the log view be sure to pass | |
570 | * `--pretty=fuller` to git log. | |
1ba2ae4b JF |
571 | * |
572 | * TIG_MAIN_CMD:: | |
573 | * The command used for the main view. Note, you must always specify | |
574 | * the option: `--pretty=raw` since the main view parser expects to | |
575 | * read that format. | |
576 | **/ | |
577 | ||
578 | #define TIG_DIFF_CMD \ | |
579 | "git show --patch-with-stat --find-copies-harder -B -C %s" | |
580 | ||
581 | #define TIG_LOG_CMD \ | |
582 | "git log --cc --stat -n100 %s" | |
583 | ||
584 | #define TIG_MAIN_CMD \ | |
585 | "git log --topo-order --stat --pretty=raw %s" | |
586 | ||
0721c53a | 587 | /* ... silently ignore that the following are also exported. */ |
1ba2ae4b JF |
588 | |
589 | #define TIG_HELP_CMD \ | |
1b4b0bd9 | 590 | "man tig 2>/dev/null" |
1ba2ae4b JF |
591 | |
592 | #define TIG_PAGER_CMD \ | |
593 | "" | |
594 | ||
c2124ccd | 595 | |
468876c9 JF |
596 | /** |
597 | * The viewer | |
598 | * ---------- | |
c2124ccd JF |
599 | * The display consists of a status window on the last line of the screen and |
600 | * one or more views. The default is to only show one view at the time but it | |
601 | * is possible to split both the main and log view to also show the commit | |
602 | * diff. | |
468876c9 | 603 | * |
c2124ccd JF |
604 | * If you are in the log view and press 'Enter' when the current line is a |
605 | * commit line, such as: | |
468876c9 | 606 | * |
c2124ccd | 607 | * commit 4d55caff4cc89335192f3e566004b4ceef572521 |
468876c9 | 608 | * |
c2124ccd JF |
609 | * You will split the view so that the log view is displayed in the top window |
610 | * and the diff view in the bottom window. You can switch between the two | |
611 | * views by pressing 'Tab'. To maximize the log view again, simply press 'l'. | |
612 | **/ | |
613 | ||
614 | struct view; | |
615 | ||
616 | /* The display array of active views and the index of the current view. */ | |
617 | static struct view *display[2]; | |
618 | static unsigned int current_view; | |
619 | ||
620 | #define foreach_view(view, i) \ | |
621 | for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++) | |
622 | ||
623 | ||
624 | /** | |
625 | * Current head and commit ID | |
626 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
627 | * The viewer keeps track of both what head and commit ID you are currently | |
628 | * viewing. The commit ID will follow the cursor line and change everytime time | |
629 | * you highlight a different commit. Whenever you reopen the diff view it | |
630 | * will be reloaded, if the commit ID changed. | |
468876c9 | 631 | * |
c2124ccd JF |
632 | * The head ID is used when opening the main and log view to indicate from |
633 | * what revision to show history. | |
468876c9 | 634 | **/ |
b801d8b2 | 635 | |
c2124ccd JF |
636 | static char ref_commit[SIZEOF_REF] = "HEAD"; |
637 | static char ref_head[SIZEOF_REF] = "HEAD"; | |
638 | ||
639 | ||
b801d8b2 | 640 | struct view { |
03a93dbb | 641 | const char *name; /* View name */ |
4685845e TH |
642 | const char *cmd_fmt; /* Default command line format */ |
643 | const char *cmd_env; /* Command line set via environment */ | |
644 | const char *id; /* Points to either of ref_{head,commit} */ | |
03a93dbb | 645 | size_t objsize; /* Size of objects in the line index */ |
6b161b31 JF |
646 | |
647 | struct view_ops { | |
6734f6b9 JF |
648 | /* What type of content being displayed. Used in the |
649 | * title bar. */ | |
4685845e | 650 | const char *type; |
8855ada4 | 651 | /* Draw one line; @lineno must be < view->height. */ |
6b161b31 | 652 | bool (*draw)(struct view *view, unsigned int lineno); |
8855ada4 | 653 | /* Read one line; updates view->line. */ |
6b161b31 | 654 | bool (*read)(struct view *view, char *line); |
8855ada4 | 655 | /* Depending on view, change display based on current line. */ |
6b161b31 JF |
656 | bool (*enter)(struct view *view); |
657 | } *ops; | |
22f66b0a | 658 | |
03a93dbb | 659 | char cmd[SIZEOF_CMD]; /* Command buffer */ |
49f2b43f JF |
660 | char ref[SIZEOF_REF]; /* Hovered commit reference */ |
661 | char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */ | |
2e8488b4 | 662 | |
8855ada4 JF |
663 | int height, width; /* The width and height of the main window */ |
664 | WINDOW *win; /* The main window */ | |
665 | WINDOW *title; /* The title window living below the main window */ | |
b801d8b2 JF |
666 | |
667 | /* Navigation */ | |
668 | unsigned long offset; /* Offset of the window top */ | |
669 | unsigned long lineno; /* Current line number */ | |
670 | ||
671 | /* Buffering */ | |
672 | unsigned long lines; /* Total number of lines */ | |
8855ada4 JF |
673 | void **line; /* Line index; each line contains user data */ |
674 | unsigned int digits; /* Number of digits in the lines member. */ | |
b801d8b2 JF |
675 | |
676 | /* Loading */ | |
677 | FILE *pipe; | |
2e8488b4 | 678 | time_t start_time; |
b801d8b2 JF |
679 | }; |
680 | ||
6b161b31 JF |
681 | static struct view_ops pager_ops; |
682 | static struct view_ops main_ops; | |
a28bcc22 | 683 | |
1ba2ae4b JF |
684 | #define VIEW_STR(name, cmd, env, ref, objsize, ops) \ |
685 | { name, cmd, #env, ref, objsize, ops } | |
686 | ||
687 | #define VIEW_(id, name, ops, ref, objsize) \ | |
688 | VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, objsize, ops) | |
689 | ||
c2124ccd JF |
690 | /** |
691 | * Views | |
692 | * ~~~~~ | |
693 | * tig(1) presents various 'views' of a repository. Each view is based on output | |
694 | * from an external command, most often 'git log', 'git diff', or 'git show'. | |
695 | * | |
696 | * The main view:: | |
697 | * Is the default view, and it shows a one line summary of each commit | |
698 | * in the chosen list of revisions. The summary includes commit date, | |
699 | * author, and the first line of the log message. Additionally, any | |
700 | * repository references, such as tags, will be shown. | |
701 | * | |
702 | * The log view:: | |
703 | * Presents a more rich view of the revision log showing the whole log | |
704 | * message and the diffstat. | |
705 | * | |
706 | * The diff view:: | |
707 | * Shows either the diff of the current working tree, that is, what | |
708 | * has changed since the last commit, or the commit diff complete | |
709 | * with log message, diffstat and diff. | |
710 | * | |
711 | * The pager view:: | |
712 | * Is used for displaying both input from stdin and output from git | |
713 | * commands entered in the internal prompt. | |
714 | * | |
715 | * The help view:: | |
716 | * Displays the information from the tig(1) man page. For the help view | |
717 | * to work you need to have the tig(1) man page installed. | |
718 | **/ | |
719 | ||
b801d8b2 | 720 | static struct view views[] = { |
1ba2ae4b JF |
721 | VIEW_(MAIN, "main", &main_ops, ref_head, sizeof(struct commit)), |
722 | VIEW_(DIFF, "diff", &pager_ops, ref_commit, sizeof(char)), | |
723 | VIEW_(LOG, "log", &pager_ops, ref_head, sizeof(char)), | |
c2124ccd | 724 | VIEW_(HELP, "help", &pager_ops, "static", sizeof(char)), |
1ba2ae4b | 725 | VIEW_(PAGER, "pager", &pager_ops, "static", sizeof(char)), |
b801d8b2 JF |
726 | }; |
727 | ||
a28bcc22 JF |
728 | #define VIEW(req) (&views[(req) - REQ_OFFSET - 1]) |
729 | ||
4c6fabc2 | 730 | |
b801d8b2 | 731 | static void |
82e78006 | 732 | redraw_view_from(struct view *view, int lineno) |
b801d8b2 | 733 | { |
82e78006 | 734 | assert(0 <= lineno && lineno < view->height); |
b801d8b2 | 735 | |
82e78006 | 736 | for (; lineno < view->height; lineno++) { |
6b161b31 | 737 | if (!view->ops->draw(view, lineno)) |
fd85fef1 | 738 | break; |
b801d8b2 JF |
739 | } |
740 | ||
741 | redrawwin(view->win); | |
742 | wrefresh(view->win); | |
743 | } | |
744 | ||
b76c2afc | 745 | static void |
82e78006 JF |
746 | redraw_view(struct view *view) |
747 | { | |
748 | wclear(view->win); | |
749 | redraw_view_from(view, 0); | |
750 | } | |
751 | ||
c2124ccd JF |
752 | |
753 | /** | |
754 | * Title windows | |
755 | * ~~~~~~~~~~~~~ | |
756 | * Each view has a title window which shows the name of the view, current | |
757 | * commit ID if available, and where the view is positioned: | |
758 | * | |
759 | * [main] c622eefaa485995320bc743431bae0d497b1d875 - commit 1 of 61 (1%) | |
760 | * | |
761 | * By default, the title of the current view is highlighted using bold font. | |
762 | **/ | |
763 | ||
6b161b31 | 764 | static void |
81030ec8 JF |
765 | update_view_title(struct view *view) |
766 | { | |
767 | if (view == display[current_view]) | |
768 | wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS)); | |
769 | else | |
770 | wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR)); | |
771 | ||
772 | werase(view->title); | |
773 | wmove(view->title, 0, 0); | |
774 | ||
81030ec8 JF |
775 | if (*view->ref) |
776 | wprintw(view->title, "[%s] %s", view->name, view->ref); | |
777 | else | |
778 | wprintw(view->title, "[%s]", view->name); | |
779 | ||
780 | if (view->lines) { | |
781 | wprintw(view->title, " - %s %d of %d (%d%%)", | |
782 | view->ops->type, | |
783 | view->lineno + 1, | |
784 | view->lines, | |
785 | (view->lineno + 1) * 100 / view->lines); | |
786 | } | |
787 | ||
788 | wrefresh(view->title); | |
789 | } | |
790 | ||
791 | static void | |
6b161b31 | 792 | resize_display(void) |
b76c2afc | 793 | { |
03a93dbb | 794 | int offset, i; |
6b161b31 JF |
795 | struct view *base = display[0]; |
796 | struct view *view = display[1] ? display[1] : display[0]; | |
b76c2afc | 797 | |
6b161b31 | 798 | /* Setup window dimensions */ |
b76c2afc | 799 | |
03a93dbb | 800 | getmaxyx(stdscr, base->height, base->width); |
b76c2afc | 801 | |
6b161b31 | 802 | /* Make room for the status window. */ |
03a93dbb | 803 | base->height -= 1; |
6b161b31 JF |
804 | |
805 | if (view != base) { | |
03a93dbb JF |
806 | /* Horizontal split. */ |
807 | view->width = base->width; | |
6b161b31 JF |
808 | view->height = SCALE_SPLIT_VIEW(base->height); |
809 | base->height -= view->height; | |
810 | ||
811 | /* Make room for the title bar. */ | |
812 | view->height -= 1; | |
813 | } | |
814 | ||
815 | /* Make room for the title bar. */ | |
816 | base->height -= 1; | |
817 | ||
818 | offset = 0; | |
819 | ||
820 | foreach_view (view, i) { | |
4d55caff JF |
821 | /* Keep the height of all view->win windows one larger than is |
822 | * required so that the cursor can wrap-around on the last line | |
823 | * without scrolling the window. */ | |
b76c2afc | 824 | if (!view->win) { |
6706b2ba | 825 | view->win = newwin(view->height + 1, 0, offset, 0); |
6b161b31 JF |
826 | if (!view->win) |
827 | die("Failed to create %s view", view->name); | |
828 | ||
829 | scrollok(view->win, TRUE); | |
830 | ||
831 | view->title = newwin(1, 0, offset + view->height, 0); | |
832 | if (!view->title) | |
833 | die("Failed to create title window"); | |
834 | ||
835 | } else { | |
6706b2ba | 836 | wresize(view->win, view->height + 1, view->width); |
6b161b31 JF |
837 | mvwin(view->win, offset, 0); |
838 | mvwin(view->title, offset + view->height, 0); | |
839 | wrefresh(view->win); | |
a28bcc22 | 840 | } |
a28bcc22 | 841 | |
6b161b31 | 842 | offset += view->height + 1; |
b76c2afc | 843 | } |
6b161b31 | 844 | } |
b76c2afc | 845 | |
6b161b31 | 846 | static void |
20bb5e18 JF |
847 | redraw_display(void) |
848 | { | |
849 | struct view *view; | |
850 | int i; | |
851 | ||
852 | foreach_view (view, i) { | |
853 | redraw_view(view); | |
854 | update_view_title(view); | |
855 | } | |
856 | } | |
857 | ||
858 | ||
2e8488b4 JF |
859 | /* |
860 | * Navigation | |
861 | */ | |
862 | ||
4a2909a7 | 863 | /* Scrolling backend */ |
b801d8b2 | 864 | static void |
4a2909a7 | 865 | do_scroll_view(struct view *view, int lines) |
b801d8b2 | 866 | { |
fd85fef1 JF |
867 | /* The rendering expects the new offset. */ |
868 | view->offset += lines; | |
869 | ||
870 | assert(0 <= view->offset && view->offset < view->lines); | |
871 | assert(lines); | |
b801d8b2 | 872 | |
82e78006 | 873 | /* Redraw the whole screen if scrolling is pointless. */ |
4c6fabc2 | 874 | if (view->height < ABS(lines)) { |
b76c2afc JF |
875 | redraw_view(view); |
876 | ||
877 | } else { | |
22f66b0a | 878 | int line = lines > 0 ? view->height - lines : 0; |
82e78006 | 879 | int end = line + ABS(lines); |
fd85fef1 JF |
880 | |
881 | wscrl(view->win, lines); | |
882 | ||
22f66b0a | 883 | for (; line < end; line++) { |
6b161b31 | 884 | if (!view->ops->draw(view, line)) |
fd85fef1 JF |
885 | break; |
886 | } | |
887 | } | |
888 | ||
889 | /* Move current line into the view. */ | |
890 | if (view->lineno < view->offset) { | |
891 | view->lineno = view->offset; | |
6b161b31 | 892 | view->ops->draw(view, 0); |
fd85fef1 JF |
893 | |
894 | } else if (view->lineno >= view->offset + view->height) { | |
6706b2ba JF |
895 | if (view->lineno == view->offset + view->height) { |
896 | /* Clear the hidden line so it doesn't show if the view | |
897 | * is scrolled up. */ | |
898 | wmove(view->win, view->height, 0); | |
899 | wclrtoeol(view->win); | |
900 | } | |
fd85fef1 | 901 | view->lineno = view->offset + view->height - 1; |
6b161b31 | 902 | view->ops->draw(view, view->lineno - view->offset); |
fd85fef1 JF |
903 | } |
904 | ||
4c6fabc2 | 905 | assert(view->offset <= view->lineno && view->lineno < view->lines); |
fd85fef1 JF |
906 | |
907 | redrawwin(view->win); | |
908 | wrefresh(view->win); | |
9d3f5834 | 909 | report(""); |
fd85fef1 | 910 | } |
78c70acd | 911 | |
4a2909a7 | 912 | /* Scroll frontend */ |
fd85fef1 | 913 | static void |
6b161b31 | 914 | scroll_view(struct view *view, enum request request) |
fd85fef1 JF |
915 | { |
916 | int lines = 1; | |
b801d8b2 JF |
917 | |
918 | switch (request) { | |
4a2909a7 | 919 | case REQ_SCROLL_PAGE_DOWN: |
fd85fef1 | 920 | lines = view->height; |
4a2909a7 | 921 | case REQ_SCROLL_LINE_DOWN: |
b801d8b2 | 922 | if (view->offset + lines > view->lines) |
bde3653a | 923 | lines = view->lines - view->offset; |
b801d8b2 | 924 | |
fd85fef1 | 925 | if (lines == 0 || view->offset + view->height >= view->lines) { |
eb98559e | 926 | report("Cannot scroll beyond the last line"); |
b801d8b2 JF |
927 | return; |
928 | } | |
929 | break; | |
930 | ||
4a2909a7 | 931 | case REQ_SCROLL_PAGE_UP: |
fd85fef1 | 932 | lines = view->height; |
4a2909a7 | 933 | case REQ_SCROLL_LINE_UP: |
b801d8b2 JF |
934 | if (lines > view->offset) |
935 | lines = view->offset; | |
936 | ||
937 | if (lines == 0) { | |
eb98559e | 938 | report("Cannot scroll beyond the first line"); |
b801d8b2 JF |
939 | return; |
940 | } | |
941 | ||
fd85fef1 | 942 | lines = -lines; |
b801d8b2 | 943 | break; |
03a93dbb | 944 | |
6b161b31 JF |
945 | default: |
946 | die("request %d not handled in switch", request); | |
b801d8b2 JF |
947 | } |
948 | ||
4a2909a7 | 949 | do_scroll_view(view, lines); |
fd85fef1 | 950 | } |
b801d8b2 | 951 | |
4a2909a7 | 952 | /* Cursor moving */ |
fd85fef1 | 953 | static void |
6b161b31 | 954 | move_view(struct view *view, enum request request) |
fd85fef1 JF |
955 | { |
956 | int steps; | |
b801d8b2 | 957 | |
fd85fef1 | 958 | switch (request) { |
4a2909a7 | 959 | case REQ_MOVE_FIRST_LINE: |
78c70acd JF |
960 | steps = -view->lineno; |
961 | break; | |
962 | ||
4a2909a7 | 963 | case REQ_MOVE_LAST_LINE: |
78c70acd JF |
964 | steps = view->lines - view->lineno - 1; |
965 | break; | |
966 | ||
4a2909a7 | 967 | case REQ_MOVE_PAGE_UP: |
78c70acd JF |
968 | steps = view->height > view->lineno |
969 | ? -view->lineno : -view->height; | |
970 | break; | |
971 | ||
4a2909a7 | 972 | case REQ_MOVE_PAGE_DOWN: |
78c70acd JF |
973 | steps = view->lineno + view->height >= view->lines |
974 | ? view->lines - view->lineno - 1 : view->height; | |
975 | break; | |
976 | ||
4a2909a7 | 977 | case REQ_MOVE_UP: |
6706b2ba | 978 | case REQ_MOVE_UP_ENTER: |
fd85fef1 JF |
979 | steps = -1; |
980 | break; | |
b801d8b2 | 981 | |
4a2909a7 | 982 | case REQ_MOVE_DOWN: |
6706b2ba | 983 | case REQ_MOVE_DOWN_ENTER: |
fd85fef1 JF |
984 | steps = 1; |
985 | break; | |
6b161b31 JF |
986 | |
987 | default: | |
988 | die("request %d not handled in switch", request); | |
78c70acd | 989 | } |
b801d8b2 | 990 | |
4c6fabc2 | 991 | if (steps <= 0 && view->lineno == 0) { |
eb98559e | 992 | report("Cannot move beyond the first line"); |
78c70acd | 993 | return; |
b801d8b2 | 994 | |
6908bdbd | 995 | } else if (steps >= 0 && view->lineno + 1 >= view->lines) { |
eb98559e | 996 | report("Cannot move beyond the last line"); |
78c70acd | 997 | return; |
fd85fef1 JF |
998 | } |
999 | ||
4c6fabc2 | 1000 | /* Move the current line */ |
fd85fef1 | 1001 | view->lineno += steps; |
4c6fabc2 JF |
1002 | assert(0 <= view->lineno && view->lineno < view->lines); |
1003 | ||
1004 | /* Repaint the old "current" line if we be scrolling */ | |
2e8488b4 JF |
1005 | if (ABS(steps) < view->height) { |
1006 | int prev_lineno = view->lineno - steps - view->offset; | |
1007 | ||
1008 | wmove(view->win, prev_lineno, 0); | |
1009 | wclrtoeol(view->win); | |
03a93dbb | 1010 | view->ops->draw(view, prev_lineno); |
2e8488b4 | 1011 | } |
fd85fef1 | 1012 | |
4c6fabc2 | 1013 | /* Check whether the view needs to be scrolled */ |
fd85fef1 JF |
1014 | if (view->lineno < view->offset || |
1015 | view->lineno >= view->offset + view->height) { | |
1016 | if (steps < 0 && -steps > view->offset) { | |
1017 | steps = -view->offset; | |
b76c2afc JF |
1018 | |
1019 | } else if (steps > 0) { | |
1020 | if (view->lineno == view->lines - 1 && | |
1021 | view->lines > view->height) { | |
1022 | steps = view->lines - view->offset - 1; | |
1023 | if (steps >= view->height) | |
1024 | steps -= view->height - 1; | |
1025 | } | |
b801d8b2 | 1026 | } |
78c70acd | 1027 | |
4a2909a7 | 1028 | do_scroll_view(view, steps); |
fd85fef1 | 1029 | return; |
b801d8b2 JF |
1030 | } |
1031 | ||
4c6fabc2 | 1032 | /* Draw the current line */ |
6b161b31 | 1033 | view->ops->draw(view, view->lineno - view->offset); |
fd85fef1 | 1034 | |
b801d8b2 JF |
1035 | redrawwin(view->win); |
1036 | wrefresh(view->win); | |
9d3f5834 | 1037 | report(""); |
b801d8b2 JF |
1038 | } |
1039 | ||
b801d8b2 | 1040 | |
2e8488b4 JF |
1041 | /* |
1042 | * Incremental updating | |
1043 | */ | |
b801d8b2 | 1044 | |
03a93dbb | 1045 | static bool |
b801d8b2 JF |
1046 | begin_update(struct view *view) |
1047 | { | |
4685845e | 1048 | const char *id = view->id; |
fd85fef1 | 1049 | |
03a93dbb JF |
1050 | if (opt_cmd[0]) { |
1051 | string_copy(view->cmd, opt_cmd); | |
1052 | opt_cmd[0] = 0; | |
8855ada4 JF |
1053 | /* When running random commands, the view ref could have become |
1054 | * invalid so clear it. */ | |
1055 | view->ref[0] = 0; | |
03a93dbb | 1056 | } else { |
4685845e | 1057 | const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt; |
1ba2ae4b JF |
1058 | |
1059 | if (snprintf(view->cmd, sizeof(view->cmd), format, | |
1060 | id, id, id, id, id) >= sizeof(view->cmd)) | |
03a93dbb JF |
1061 | return FALSE; |
1062 | } | |
b801d8b2 | 1063 | |
6908bdbd JF |
1064 | /* Special case for the pager view. */ |
1065 | if (opt_pipe) { | |
1066 | view->pipe = opt_pipe; | |
1067 | opt_pipe = NULL; | |
1068 | } else { | |
1069 | view->pipe = popen(view->cmd, "r"); | |
1070 | } | |
1071 | ||
2e8488b4 JF |
1072 | if (!view->pipe) |
1073 | return FALSE; | |
b801d8b2 | 1074 | |
6b161b31 | 1075 | set_nonblocking_input(TRUE); |
b801d8b2 JF |
1076 | |
1077 | view->offset = 0; | |
1078 | view->lines = 0; | |
1079 | view->lineno = 0; | |
49f2b43f | 1080 | string_copy(view->vid, id); |
b801d8b2 | 1081 | |
2e8488b4 JF |
1082 | if (view->line) { |
1083 | int i; | |
1084 | ||
1085 | for (i = 0; i < view->lines; i++) | |
1086 | if (view->line[i]) | |
1087 | free(view->line[i]); | |
1088 | ||
1089 | free(view->line); | |
1090 | view->line = NULL; | |
1091 | } | |
1092 | ||
1093 | view->start_time = time(NULL); | |
1094 | ||
b801d8b2 JF |
1095 | return TRUE; |
1096 | } | |
1097 | ||
1098 | static void | |
1099 | end_update(struct view *view) | |
1100 | { | |
03a93dbb JF |
1101 | if (!view->pipe) |
1102 | return; | |
6b161b31 | 1103 | set_nonblocking_input(FALSE); |
80ce96ea JF |
1104 | if (view->pipe == stdin) |
1105 | fclose(view->pipe); | |
1106 | else | |
1107 | pclose(view->pipe); | |
2e8488b4 | 1108 | view->pipe = NULL; |
b801d8b2 JF |
1109 | } |
1110 | ||
03a93dbb | 1111 | static bool |
b801d8b2 JF |
1112 | update_view(struct view *view) |
1113 | { | |
1114 | char buffer[BUFSIZ]; | |
1115 | char *line; | |
22f66b0a | 1116 | void **tmp; |
82e78006 JF |
1117 | /* The number of lines to read. If too low it will cause too much |
1118 | * redrawing (and possible flickering), if too high responsiveness | |
1119 | * will suffer. */ | |
8855ada4 | 1120 | unsigned long lines = view->height; |
82e78006 | 1121 | int redraw_from = -1; |
b801d8b2 JF |
1122 | |
1123 | if (!view->pipe) | |
1124 | return TRUE; | |
1125 | ||
82e78006 JF |
1126 | /* Only redraw if lines are visible. */ |
1127 | if (view->offset + view->height >= view->lines) | |
1128 | redraw_from = view->lines - view->offset; | |
b801d8b2 JF |
1129 | |
1130 | tmp = realloc(view->line, sizeof(*view->line) * (view->lines + lines)); | |
1131 | if (!tmp) | |
1132 | goto alloc_error; | |
1133 | ||
1134 | view->line = tmp; | |
1135 | ||
1136 | while ((line = fgets(buffer, sizeof(buffer), view->pipe))) { | |
c34d9c9f | 1137 | int linelen = strlen(line); |
b801d8b2 | 1138 | |
b801d8b2 JF |
1139 | if (linelen) |
1140 | line[linelen - 1] = 0; | |
1141 | ||
6b161b31 | 1142 | if (!view->ops->read(view, line)) |
b801d8b2 | 1143 | goto alloc_error; |
fd85fef1 JF |
1144 | |
1145 | if (lines-- == 1) | |
1146 | break; | |
b801d8b2 JF |
1147 | } |
1148 | ||
8855ada4 JF |
1149 | { |
1150 | int digits; | |
1151 | ||
1152 | lines = view->lines; | |
1153 | for (digits = 0; lines; digits++) | |
1154 | lines /= 10; | |
1155 | ||
1156 | /* Keep the displayed view in sync with line number scaling. */ | |
1157 | if (digits != view->digits) { | |
1158 | view->digits = digits; | |
1159 | redraw_from = 0; | |
1160 | } | |
1161 | } | |
1162 | ||
82e78006 JF |
1163 | if (redraw_from >= 0) { |
1164 | /* If this is an incremental update, redraw the previous line | |
a28bcc22 JF |
1165 | * since for commits some members could have changed when |
1166 | * loading the main view. */ | |
82e78006 JF |
1167 | if (redraw_from > 0) |
1168 | redraw_from--; | |
1169 | ||
1170 | /* Incrementally draw avoids flickering. */ | |
1171 | redraw_view_from(view, redraw_from); | |
4c6fabc2 | 1172 | } |
b801d8b2 | 1173 | |
eb98559e JF |
1174 | /* Update the title _after_ the redraw so that if the redraw picks up a |
1175 | * commit reference in view->ref it'll be available here. */ | |
1176 | update_view_title(view); | |
1177 | ||
b801d8b2 | 1178 | if (ferror(view->pipe)) { |
03a93dbb | 1179 | report("Failed to read: %s", strerror(errno)); |
b801d8b2 JF |
1180 | goto end; |
1181 | ||
1182 | } else if (feof(view->pipe)) { | |
2e8488b4 JF |
1183 | time_t secs = time(NULL) - view->start_time; |
1184 | ||
a28bcc22 | 1185 | if (view == VIEW(REQ_VIEW_HELP)) { |
4685845e | 1186 | const char *msg = TIG_HELP; |
468876c9 JF |
1187 | |
1188 | if (view->lines == 0) { | |
1189 | /* Slightly ugly, but abusing view->ref keeps | |
1190 | * the error message. */ | |
1191 | string_copy(view->ref, "No help available"); | |
1192 | msg = "The tig(1) manpage is not installed"; | |
1193 | } | |
1194 | ||
1195 | report("%s", msg); | |
2e8488b4 JF |
1196 | goto end; |
1197 | } | |
1198 | ||
1199 | report("Loaded %d lines in %ld second%s", view->lines, secs, | |
1200 | secs == 1 ? "" : "s"); | |
b801d8b2 JF |
1201 | goto end; |
1202 | } | |
1203 | ||
1204 | return TRUE; | |
1205 | ||
1206 | alloc_error: | |
2e8488b4 | 1207 | report("Allocation failure"); |
b801d8b2 JF |
1208 | |
1209 | end: | |
1210 | end_update(view); | |
1211 | return FALSE; | |
1212 | } | |
1213 | ||
49f2b43f JF |
1214 | enum open_flags { |
1215 | OPEN_DEFAULT = 0, /* Use default view switching. */ | |
1216 | OPEN_SPLIT = 1, /* Split current view. */ | |
1217 | OPEN_BACKGROUNDED = 2, /* Backgrounded. */ | |
1218 | OPEN_RELOAD = 4, /* Reload view even if it is the current. */ | |
1219 | }; | |
1220 | ||
6b161b31 | 1221 | static void |
49f2b43f | 1222 | open_view(struct view *prev, enum request request, enum open_flags flags) |
b801d8b2 | 1223 | { |
49f2b43f JF |
1224 | bool backgrounded = !!(flags & OPEN_BACKGROUNDED); |
1225 | bool split = !!(flags & OPEN_SPLIT); | |
1226 | bool reload = !!(flags & OPEN_RELOAD); | |
a28bcc22 | 1227 | struct view *view = VIEW(request); |
b801d8b2 | 1228 | struct view *displayed; |
6b161b31 JF |
1229 | int nviews; |
1230 | ||
03a93dbb | 1231 | /* Cycle between displayed views and count the views. */ |
6b161b31 | 1232 | foreach_view (displayed, nviews) { |
03a93dbb JF |
1233 | if (prev != view && |
1234 | view == displayed && | |
8855ada4 | 1235 | !strcmp(view->vid, prev->vid)) { |
6b161b31 JF |
1236 | current_view = nviews; |
1237 | /* Blur out the title of the previous view. */ | |
1238 | update_view_title(prev); | |
6734f6b9 | 1239 | report(""); |
6b161b31 | 1240 | return; |
a28bcc22 | 1241 | } |
6b161b31 | 1242 | } |
b801d8b2 | 1243 | |
49f2b43f | 1244 | if (view == prev && nviews == 1 && !reload) { |
6b161b31 JF |
1245 | report("Already in %s view", view->name); |
1246 | return; | |
1247 | } | |
b801d8b2 | 1248 | |
8855ada4 | 1249 | if ((reload || strcmp(view->vid, view->id)) && |
03a93dbb | 1250 | !begin_update(view)) { |
6b161b31 JF |
1251 | report("Failed to load %s view", view->name); |
1252 | return; | |
1253 | } | |
a28bcc22 | 1254 | |
6b161b31 JF |
1255 | if (split) { |
1256 | display[current_view + 1] = view; | |
1257 | if (!backgrounded) | |
a28bcc22 | 1258 | current_view++; |
6b161b31 JF |
1259 | } else { |
1260 | /* Maximize the current view. */ | |
1261 | memset(display, 0, sizeof(display)); | |
1262 | current_view = 0; | |
1263 | display[current_view] = view; | |
a28bcc22 | 1264 | } |
b801d8b2 | 1265 | |
6b161b31 | 1266 | resize_display(); |
b801d8b2 | 1267 | |
a8891802 | 1268 | if (split && prev->lineno - prev->offset >= prev->height) { |
03a93dbb | 1269 | /* Take the title line into account. */ |
eb98559e | 1270 | int lines = prev->lineno - prev->offset - prev->height + 1; |
03a93dbb JF |
1271 | |
1272 | /* Scroll the view that was split if the current line is | |
1273 | * outside the new limited view. */ | |
1274 | do_scroll_view(prev, lines); | |
1275 | } | |
1276 | ||
6b161b31 JF |
1277 | if (prev && view != prev) { |
1278 | /* "Blur" the previous view. */ | |
6706b2ba JF |
1279 | if (!backgrounded) |
1280 | update_view_title(prev); | |
6b161b31 JF |
1281 | |
1282 | /* Continue loading split views in the background. */ | |
03a93dbb | 1283 | if (!split) |
6b161b31 | 1284 | end_update(prev); |
b801d8b2 JF |
1285 | } |
1286 | ||
03a93dbb JF |
1287 | if (view->pipe) { |
1288 | /* Clear the old view and let the incremental updating refill | |
1289 | * the screen. */ | |
1290 | wclear(view->win); | |
1291 | report("Loading..."); | |
1292 | } else { | |
1293 | redraw_view(view); | |
468876c9 JF |
1294 | if (view == VIEW(REQ_VIEW_HELP)) |
1295 | report("%s", TIG_HELP); | |
1296 | else | |
1297 | report(""); | |
03a93dbb | 1298 | } |
6706b2ba JF |
1299 | |
1300 | /* If the view is backgrounded the above calls to report() | |
1301 | * won't redraw the view title. */ | |
1302 | if (backgrounded) | |
1303 | update_view_title(view); | |
b801d8b2 JF |
1304 | } |
1305 | ||
1306 | ||
6b161b31 JF |
1307 | /* |
1308 | * User request switch noodle | |
1309 | */ | |
1310 | ||
b801d8b2 | 1311 | static int |
6b161b31 | 1312 | view_driver(struct view *view, enum request request) |
b801d8b2 | 1313 | { |
b801d8b2 JF |
1314 | int i; |
1315 | ||
1316 | switch (request) { | |
4a2909a7 JF |
1317 | case REQ_MOVE_UP: |
1318 | case REQ_MOVE_DOWN: | |
1319 | case REQ_MOVE_PAGE_UP: | |
1320 | case REQ_MOVE_PAGE_DOWN: | |
1321 | case REQ_MOVE_FIRST_LINE: | |
1322 | case REQ_MOVE_LAST_LINE: | |
a28bcc22 | 1323 | move_view(view, request); |
fd85fef1 JF |
1324 | break; |
1325 | ||
4a2909a7 JF |
1326 | case REQ_SCROLL_LINE_DOWN: |
1327 | case REQ_SCROLL_LINE_UP: | |
1328 | case REQ_SCROLL_PAGE_DOWN: | |
1329 | case REQ_SCROLL_PAGE_UP: | |
a28bcc22 | 1330 | scroll_view(view, request); |
b801d8b2 JF |
1331 | break; |
1332 | ||
4a2909a7 | 1333 | case REQ_VIEW_MAIN: |
4a2909a7 | 1334 | case REQ_VIEW_DIFF: |
2e8488b4 JF |
1335 | case REQ_VIEW_LOG: |
1336 | case REQ_VIEW_HELP: | |
6908bdbd | 1337 | case REQ_VIEW_PAGER: |
49f2b43f | 1338 | open_view(view, request, OPEN_DEFAULT); |
b801d8b2 JF |
1339 | break; |
1340 | ||
6706b2ba JF |
1341 | case REQ_MOVE_UP_ENTER: |
1342 | case REQ_MOVE_DOWN_ENTER: | |
1343 | move_view(view, request); | |
1344 | /* Fall-through */ | |
1345 | ||
6b161b31 | 1346 | case REQ_ENTER: |
6908bdbd JF |
1347 | if (!view->lines) { |
1348 | report("Nothing to enter"); | |
1349 | break; | |
1350 | } | |
6b161b31 JF |
1351 | return view->ops->enter(view); |
1352 | ||
03a93dbb JF |
1353 | case REQ_VIEW_NEXT: |
1354 | { | |
1355 | int nviews = display[1] ? 2 : 1; | |
1356 | int next_view = (current_view + 1) % nviews; | |
1357 | ||
1358 | if (next_view == current_view) { | |
1359 | report("Only one view is displayed"); | |
1360 | break; | |
1361 | } | |
1362 | ||
1363 | current_view = next_view; | |
1364 | /* Blur out the title of the previous view. */ | |
1365 | update_view_title(view); | |
6734f6b9 | 1366 | report(""); |
03a93dbb JF |
1367 | break; |
1368 | } | |
4a2909a7 | 1369 | case REQ_TOGGLE_LINE_NUMBERS: |
b76c2afc | 1370 | opt_line_number = !opt_line_number; |
20bb5e18 | 1371 | redraw_display(); |
b801d8b2 JF |
1372 | break; |
1373 | ||
03a93dbb | 1374 | case REQ_PROMPT: |
8855ada4 | 1375 | /* Always reload^Wrerun commands from the prompt. */ |
49f2b43f | 1376 | open_view(view, opt_request, OPEN_RELOAD); |
03a93dbb JF |
1377 | break; |
1378 | ||
4a2909a7 | 1379 | case REQ_STOP_LOADING: |
03a93dbb | 1380 | foreach_view (view, i) { |
2e8488b4 | 1381 | if (view->pipe) |
6706b2ba | 1382 | report("Stopped loaded the %s view", view->name), |
03a93dbb JF |
1383 | end_update(view); |
1384 | } | |
b801d8b2 JF |
1385 | break; |
1386 | ||
4a2909a7 | 1387 | case REQ_SHOW_VERSION: |
2e8488b4 | 1388 | report("Version: %s", VERSION); |
b801d8b2 JF |
1389 | return TRUE; |
1390 | ||
fac7db6c JF |
1391 | case REQ_SCREEN_RESIZE: |
1392 | resize_display(); | |
1393 | /* Fall-through */ | |
4a2909a7 | 1394 | case REQ_SCREEN_REDRAW: |
20bb5e18 | 1395 | redraw_display(); |
4a2909a7 JF |
1396 | break; |
1397 | ||
1398 | case REQ_SCREEN_UPDATE: | |
b801d8b2 JF |
1399 | doupdate(); |
1400 | return TRUE; | |
1401 | ||
4f9b667a JF |
1402 | case REQ_VIEW_CLOSE: |
1403 | if (display[1]) { | |
1404 | view = display[(current_view + 1) % ARRAY_SIZE(display)]; | |
1405 | memset(display, 0, sizeof(display)); | |
1406 | current_view = 0; | |
1407 | display[current_view] = view; | |
1408 | resize_display(); | |
1409 | redraw_display(); | |
1410 | break; | |
1411 | } | |
1412 | /* Fall-through */ | |
b801d8b2 JF |
1413 | case REQ_QUIT: |
1414 | return FALSE; | |
1415 | ||
1416 | default: | |
2e8488b4 | 1417 | /* An unknown key will show most commonly used commands. */ |
468876c9 | 1418 | report("Unknown key, press 'h' for help"); |
b801d8b2 JF |
1419 | return TRUE; |
1420 | } | |
1421 | ||
1422 | return TRUE; | |
1423 | } | |
1424 | ||
1425 | ||
1426 | /* | |
6b161b31 | 1427 | * View backend handlers |
b801d8b2 JF |
1428 | */ |
1429 | ||
6b161b31 | 1430 | static bool |
22f66b0a | 1431 | pager_draw(struct view *view, unsigned int lineno) |
b801d8b2 | 1432 | { |
78c70acd | 1433 | enum line_type type; |
b801d8b2 | 1434 | char *line; |
4c6fabc2 | 1435 | int linelen; |
78c70acd | 1436 | int attr; |
b801d8b2 | 1437 | |
fd85fef1 JF |
1438 | if (view->offset + lineno >= view->lines) |
1439 | return FALSE; | |
1440 | ||
b801d8b2 | 1441 | line = view->line[view->offset + lineno]; |
78c70acd | 1442 | type = get_line_type(line); |
b801d8b2 | 1443 | |
6706b2ba JF |
1444 | wmove(view->win, lineno, 0); |
1445 | ||
fd85fef1 | 1446 | if (view->offset + lineno == view->lineno) { |
8855ada4 | 1447 | if (type == LINE_COMMIT) { |
03a93dbb JF |
1448 | string_copy(view->ref, line + 7); |
1449 | string_copy(ref_commit, view->ref); | |
1450 | } | |
8855ada4 | 1451 | |
78c70acd | 1452 | type = LINE_CURSOR; |
6706b2ba | 1453 | wchgat(view->win, -1, 0, type, NULL); |
fd85fef1 JF |
1454 | } |
1455 | ||
78c70acd | 1456 | attr = get_line_attr(type); |
b801d8b2 | 1457 | wattrset(view->win, attr); |
b76c2afc | 1458 | |
4c6fabc2 | 1459 | linelen = strlen(line); |
4c6fabc2 | 1460 | |
6706b2ba JF |
1461 | if (opt_line_number || opt_tab_size < TABSIZE) { |
1462 | static char spaces[] = " "; | |
1463 | int col_offset = 0, col = 0; | |
1464 | ||
1465 | if (opt_line_number) { | |
1466 | unsigned long real_lineno = view->offset + lineno + 1; | |
82e78006 | 1467 | |
6706b2ba JF |
1468 | if (real_lineno == 1 || |
1469 | (real_lineno % opt_num_interval) == 0) { | |
1470 | wprintw(view->win, "%.*d", view->digits, real_lineno); | |
8855ada4 | 1471 | |
6706b2ba JF |
1472 | } else { |
1473 | waddnstr(view->win, spaces, | |
1474 | MIN(view->digits, STRING_SIZE(spaces))); | |
1475 | } | |
1476 | waddstr(view->win, ": "); | |
1477 | col_offset = view->digits + 2; | |
1478 | } | |
8855ada4 | 1479 | |
6706b2ba JF |
1480 | while (line && col_offset + col < view->width) { |
1481 | int cols_max = view->width - col_offset - col; | |
1482 | char *text = line; | |
1483 | int cols; | |
4c6fabc2 | 1484 | |
b76c2afc | 1485 | if (*line == '\t') { |
6706b2ba | 1486 | assert(sizeof(spaces) > TABSIZE); |
b76c2afc | 1487 | line++; |
6706b2ba JF |
1488 | text = spaces; |
1489 | cols = opt_tab_size - (col % opt_tab_size); | |
82e78006 | 1490 | |
b76c2afc | 1491 | } else { |
6706b2ba JF |
1492 | line = strchr(line, '\t'); |
1493 | cols = line ? line - text : strlen(text); | |
b76c2afc | 1494 | } |
6706b2ba JF |
1495 | |
1496 | waddnstr(view->win, text, MIN(cols, cols_max)); | |
1497 | col += cols; | |
b76c2afc | 1498 | } |
b76c2afc JF |
1499 | |
1500 | } else { | |
6706b2ba | 1501 | int col = 0, pos = 0; |
b801d8b2 | 1502 | |
6706b2ba JF |
1503 | for (; pos < linelen && col < view->width; pos++, col++) |
1504 | if (line[pos] == '\t') | |
1505 | col += TABSIZE - (col % TABSIZE) - 1; | |
1506 | ||
1507 | waddnstr(view->win, line, pos); | |
1508 | } | |
2e8488b4 | 1509 | |
b801d8b2 JF |
1510 | return TRUE; |
1511 | } | |
1512 | ||
6b161b31 | 1513 | static bool |
22f66b0a JF |
1514 | pager_read(struct view *view, char *line) |
1515 | { | |
6706b2ba JF |
1516 | /* Compress empty lines in the help view. */ |
1517 | if (view == VIEW(REQ_VIEW_HELP) && | |
1518 | !*line && | |
1519 | view->lines && | |
1520 | !*((char *) view->line[view->lines - 1])) | |
1521 | return TRUE; | |
1522 | ||
22f66b0a JF |
1523 | view->line[view->lines] = strdup(line); |
1524 | if (!view->line[view->lines]) | |
1525 | return FALSE; | |
1526 | ||
1527 | view->lines++; | |
1528 | return TRUE; | |
1529 | } | |
1530 | ||
6b161b31 JF |
1531 | static bool |
1532 | pager_enter(struct view *view) | |
1533 | { | |
1534 | char *line = view->line[view->lineno]; | |
1535 | ||
67e48ac5 JF |
1536 | if (view == VIEW(REQ_VIEW_DIFF)) { |
1537 | scroll_view(view, REQ_SCROLL_LINE_DOWN); | |
1538 | return TRUE; | |
1539 | } | |
1540 | ||
6b161b31 | 1541 | if (get_line_type(line) == LINE_COMMIT) { |
6706b2ba JF |
1542 | if (view == VIEW(REQ_VIEW_LOG)) |
1543 | open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT | OPEN_BACKGROUNDED); | |
1544 | else | |
1545 | open_view(view, REQ_VIEW_DIFF, OPEN_DEFAULT); | |
6b161b31 JF |
1546 | } |
1547 | ||
1548 | return TRUE; | |
1549 | } | |
1550 | ||
6b161b31 | 1551 | static struct view_ops pager_ops = { |
6734f6b9 | 1552 | "line", |
6b161b31 JF |
1553 | pager_draw, |
1554 | pager_read, | |
1555 | pager_enter, | |
1556 | }; | |
1557 | ||
80ce96ea | 1558 | |
c34d9c9f JF |
1559 | static struct ref **get_refs(char *id); |
1560 | ||
6b161b31 | 1561 | static bool |
22f66b0a JF |
1562 | main_draw(struct view *view, unsigned int lineno) |
1563 | { | |
2e8488b4 | 1564 | char buf[DATE_COLS + 1]; |
22f66b0a | 1565 | struct commit *commit; |
78c70acd | 1566 | enum line_type type; |
6706b2ba | 1567 | int col = 0; |
b76c2afc | 1568 | size_t timelen; |
22f66b0a JF |
1569 | |
1570 | if (view->offset + lineno >= view->lines) | |
1571 | return FALSE; | |
1572 | ||
1573 | commit = view->line[view->offset + lineno]; | |
4c6fabc2 JF |
1574 | if (!*commit->author) |
1575 | return FALSE; | |
22f66b0a | 1576 | |
6706b2ba JF |
1577 | wmove(view->win, lineno, col); |
1578 | ||
22f66b0a | 1579 | if (view->offset + lineno == view->lineno) { |
03a93dbb | 1580 | string_copy(view->ref, commit->id); |
49f2b43f | 1581 | string_copy(ref_commit, view->ref); |
78c70acd | 1582 | type = LINE_CURSOR; |
6706b2ba JF |
1583 | wattrset(view->win, get_line_attr(type)); |
1584 | wchgat(view->win, -1, 0, type, NULL); | |
1585 | ||
78c70acd | 1586 | } else { |
b76c2afc | 1587 | type = LINE_MAIN_COMMIT; |
6706b2ba | 1588 | wattrset(view->win, get_line_attr(LINE_MAIN_DATE)); |
b76c2afc JF |
1589 | } |
1590 | ||
4c6fabc2 | 1591 | timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time); |
b76c2afc | 1592 | waddnstr(view->win, buf, timelen); |
4c6fabc2 | 1593 | waddstr(view->win, " "); |
b76c2afc | 1594 | |
6706b2ba JF |
1595 | col += DATE_COLS; |
1596 | wmove(view->win, lineno, col); | |
1597 | if (type != LINE_CURSOR) | |
1598 | wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR)); | |
b76c2afc JF |
1599 | |
1600 | if (strlen(commit->author) > 19) { | |
1601 | waddnstr(view->win, commit->author, 18); | |
6706b2ba JF |
1602 | if (type != LINE_CURSOR) |
1603 | wattrset(view->win, get_line_attr(LINE_MAIN_DELIM)); | |
b76c2afc JF |
1604 | waddch(view->win, '~'); |
1605 | } else { | |
1606 | waddstr(view->win, commit->author); | |
22f66b0a JF |
1607 | } |
1608 | ||
6706b2ba JF |
1609 | col += 20; |
1610 | if (type != LINE_CURSOR) | |
1611 | wattrset(view->win, A_NORMAL); | |
1612 | ||
1613 | mvwaddch(view->win, lineno, col, ACS_LTEE); | |
1614 | wmove(view->win, lineno, col + 2); | |
1615 | col += 2; | |
c34d9c9f JF |
1616 | |
1617 | if (commit->refs) { | |
1618 | size_t i = 0; | |
1619 | ||
1620 | do { | |
6706b2ba JF |
1621 | if (type == LINE_CURSOR) |
1622 | ; | |
1623 | else if (commit->refs[i]->tag) | |
c34d9c9f JF |
1624 | wattrset(view->win, get_line_attr(LINE_MAIN_TAG)); |
1625 | else | |
1626 | wattrset(view->win, get_line_attr(LINE_MAIN_REF)); | |
1627 | waddstr(view->win, "["); | |
1628 | waddstr(view->win, commit->refs[i]->name); | |
1629 | waddstr(view->win, "]"); | |
6706b2ba JF |
1630 | if (type != LINE_CURSOR) |
1631 | wattrset(view->win, A_NORMAL); | |
c34d9c9f | 1632 | waddstr(view->win, " "); |
6706b2ba | 1633 | col += strlen(commit->refs[i]->name) + STRING_SIZE("[] "); |
c34d9c9f JF |
1634 | } while (commit->refs[i++]->next); |
1635 | } | |
1636 | ||
6706b2ba JF |
1637 | if (type != LINE_CURSOR) |
1638 | wattrset(view->win, get_line_attr(type)); | |
1639 | ||
1640 | { | |
1641 | int titlelen = strlen(commit->title); | |
1642 | ||
1643 | if (col + titlelen > view->width) | |
1644 | titlelen = view->width - col; | |
1645 | ||
1646 | waddnstr(view->win, commit->title, titlelen); | |
1647 | } | |
22f66b0a JF |
1648 | |
1649 | return TRUE; | |
1650 | } | |
1651 | ||
4c6fabc2 | 1652 | /* Reads git log --pretty=raw output and parses it into the commit struct. */ |
6b161b31 | 1653 | static bool |
22f66b0a JF |
1654 | main_read(struct view *view, char *line) |
1655 | { | |
78c70acd JF |
1656 | enum line_type type = get_line_type(line); |
1657 | struct commit *commit; | |
22f66b0a | 1658 | |
78c70acd JF |
1659 | switch (type) { |
1660 | case LINE_COMMIT: | |
22f66b0a JF |
1661 | commit = calloc(1, sizeof(struct commit)); |
1662 | if (!commit) | |
1663 | return FALSE; | |
1664 | ||
4c6fabc2 | 1665 | line += STRING_SIZE("commit "); |
b76c2afc | 1666 | |
22f66b0a | 1667 | view->line[view->lines++] = commit; |
82e78006 | 1668 | string_copy(commit->id, line); |
c34d9c9f | 1669 | commit->refs = get_refs(commit->id); |
78c70acd | 1670 | break; |
22f66b0a | 1671 | |
8855ada4 | 1672 | case LINE_AUTHOR: |
b76c2afc | 1673 | { |
4c6fabc2 | 1674 | char *ident = line + STRING_SIZE("author "); |
b76c2afc JF |
1675 | char *end = strchr(ident, '<'); |
1676 | ||
1677 | if (end) { | |
1678 | for (; end > ident && isspace(end[-1]); end--) ; | |
1679 | *end = 0; | |
1680 | } | |
1681 | ||
1682 | commit = view->line[view->lines - 1]; | |
82e78006 | 1683 | string_copy(commit->author, ident); |
b76c2afc | 1684 | |
4c6fabc2 | 1685 | /* Parse epoch and timezone */ |
b76c2afc JF |
1686 | if (end) { |
1687 | char *secs = strchr(end + 1, '>'); | |
1688 | char *zone; | |
1689 | time_t time; | |
1690 | ||
1691 | if (!secs || secs[1] != ' ') | |
1692 | break; | |
1693 | ||
1694 | secs += 2; | |
1695 | time = (time_t) atol(secs); | |
1696 | zone = strchr(secs, ' '); | |
4c6fabc2 | 1697 | if (zone && strlen(zone) == STRING_SIZE(" +0700")) { |
b76c2afc JF |
1698 | long tz; |
1699 | ||
1700 | zone++; | |
1701 | tz = ('0' - zone[1]) * 60 * 60 * 10; | |
1702 | tz += ('0' - zone[2]) * 60 * 60; | |
1703 | tz += ('0' - zone[3]) * 60; | |
1704 | tz += ('0' - zone[4]) * 60; | |
1705 | ||
1706 | if (zone[0] == '-') | |
1707 | tz = -tz; | |
1708 | ||
1709 | time -= tz; | |
1710 | } | |
1711 | gmtime_r(&time, &commit->time); | |
1712 | } | |
1713 | break; | |
1714 | } | |
78c70acd | 1715 | default: |
2e8488b4 JF |
1716 | /* We should only ever end up here if there has already been a |
1717 | * commit line, however, be safe. */ | |
1718 | if (view->lines == 0) | |
1719 | break; | |
1720 | ||
1721 | /* Fill in the commit title if it has not already been set. */ | |
78c70acd | 1722 | commit = view->line[view->lines - 1]; |
2e8488b4 JF |
1723 | if (commit->title[0]) |
1724 | break; | |
1725 | ||
1726 | /* Require titles to start with a non-space character at the | |
1727 | * offset used by git log. */ | |
eb98559e JF |
1728 | /* FIXME: More gracefull handling of titles; append "..." to |
1729 | * shortened titles, etc. */ | |
2e8488b4 | 1730 | if (strncmp(line, " ", 4) || |
eb98559e | 1731 | isspace(line[4])) |
82e78006 JF |
1732 | break; |
1733 | ||
1734 | string_copy(commit->title, line + 4); | |
22f66b0a JF |
1735 | } |
1736 | ||
1737 | return TRUE; | |
1738 | } | |
1739 | ||
6b161b31 JF |
1740 | static bool |
1741 | main_enter(struct view *view) | |
b801d8b2 | 1742 | { |
49f2b43f | 1743 | open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT | OPEN_BACKGROUNDED); |
6b161b31 | 1744 | return TRUE; |
b801d8b2 JF |
1745 | } |
1746 | ||
6b161b31 | 1747 | static struct view_ops main_ops = { |
6734f6b9 | 1748 | "commit", |
6b161b31 JF |
1749 | main_draw, |
1750 | main_read, | |
1751 | main_enter, | |
1752 | }; | |
2e8488b4 | 1753 | |
c34d9c9f | 1754 | |
468876c9 JF |
1755 | /** |
1756 | * KEYS | |
1757 | * ---- | |
1758 | * Below the default key bindings are shown. | |
1759 | **/ | |
1760 | ||
1761 | struct keymap { | |
1762 | int alias; | |
1763 | int request; | |
1764 | }; | |
1765 | ||
3a91b75e | 1766 | static struct keymap keymap[] = { |
468876c9 JF |
1767 | /** |
1768 | * View switching | |
1769 | * ~~~~~~~~~~~~~~ | |
1770 | * m:: | |
1771 | * Switch to main view. | |
1772 | * d:: | |
1773 | * Switch to diff view. | |
1774 | * l:: | |
1775 | * Switch to log view. | |
1776 | * p:: | |
1777 | * Switch to pager view. | |
1778 | * h:: | |
1779 | * Show man page. | |
4f9b667a JF |
1780 | * q:: |
1781 | * Close view if multiple views are open, else quit. | |
67e48ac5 JF |
1782 | * Enter:: |
1783 | * This key is "context sensitive" depending on what view you are | |
1784 | * currently in. When in log view on a commit line or in the main | |
1785 | * view, split the view and show the commit diff. In the diff view | |
1786 | * pressing Enter will simply scroll the view one line down. | |
468876c9 JF |
1787 | * Tab:: |
1788 | * Switch to next view. | |
1789 | **/ | |
1790 | { 'm', REQ_VIEW_MAIN }, | |
1791 | { 'd', REQ_VIEW_DIFF }, | |
1792 | { 'l', REQ_VIEW_LOG }, | |
1793 | { 'p', REQ_VIEW_PAGER }, | |
1794 | { 'h', REQ_VIEW_HELP }, | |
1795 | ||
4f9b667a | 1796 | { 'q', REQ_VIEW_CLOSE }, |
468876c9 JF |
1797 | { KEY_TAB, REQ_VIEW_NEXT }, |
1798 | { KEY_RETURN, REQ_ENTER }, | |
1799 | ||
1800 | /** | |
1801 | * Cursor navigation | |
1802 | * ~~~~~~~~~~~~~~~~~ | |
1803 | * Up:: | |
57bdf034 | 1804 | * Move cursor one line up. |
468876c9 JF |
1805 | * Down:: |
1806 | * Move cursor one line down. | |
1807 | * k:: | |
57bdf034 | 1808 | * Move cursor one line up and enter. When used in the main view |
468876c9 JF |
1809 | * this will always show the diff of the current commit in the |
1810 | * split diff view. | |
1811 | * j:: | |
1812 | * Move cursor one line down and enter. | |
1813 | * PgUp:: | |
c622eefa | 1814 | * b:: |
57bdf034 | 1815 | * Move cursor one page up. |
468876c9 | 1816 | * PgDown:: |
c622eefa | 1817 | * Space:: |
468876c9 JF |
1818 | * Move cursor one page down. |
1819 | * Home:: | |
1820 | * Jump to first line. | |
1821 | * End:: | |
1822 | * Jump to last line. | |
1823 | **/ | |
1824 | { KEY_UP, REQ_MOVE_UP }, | |
1825 | { KEY_DOWN, REQ_MOVE_DOWN }, | |
1826 | { 'k', REQ_MOVE_UP_ENTER }, | |
1827 | { 'j', REQ_MOVE_DOWN_ENTER }, | |
1828 | { KEY_HOME, REQ_MOVE_FIRST_LINE }, | |
1829 | { KEY_END, REQ_MOVE_LAST_LINE }, | |
1830 | { KEY_NPAGE, REQ_MOVE_PAGE_DOWN }, | |
c622eefa | 1831 | { ' ', REQ_MOVE_PAGE_DOWN }, |
468876c9 | 1832 | { KEY_PPAGE, REQ_MOVE_PAGE_UP }, |
c622eefa | 1833 | { 'b', REQ_MOVE_PAGE_UP }, |
468876c9 JF |
1834 | |
1835 | /** | |
1836 | * Scrolling | |
1837 | * ~~~~~~~~~ | |
1838 | * Insert:: | |
1839 | * Scroll view one line up. | |
1840 | * Delete:: | |
1841 | * Scroll view one line down. | |
1842 | * w:: | |
1843 | * Scroll view one page up. | |
1844 | * s:: | |
1845 | * Scroll view one page down. | |
1846 | **/ | |
1847 | { KEY_IC, REQ_SCROLL_LINE_UP }, | |
1848 | { KEY_DC, REQ_SCROLL_LINE_DOWN }, | |
1849 | { 'w', REQ_SCROLL_PAGE_UP }, | |
1850 | { 's', REQ_SCROLL_PAGE_DOWN }, | |
1851 | ||
1852 | /** | |
1853 | * Misc | |
1854 | * ~~~~ | |
d9d1c722 JF |
1855 | * Q:: |
1856 | * Quit. | |
468876c9 JF |
1857 | * r:: |
1858 | * Redraw screen. | |
1859 | * z:: | |
1860 | * Stop all background loading. This can be useful if you use | |
1861 | * tig(1) in a repository with a long history without limiting | |
0721c53a | 1862 | * the revision log. |
468876c9 JF |
1863 | * v:: |
1864 | * Show version. | |
1865 | * n:: | |
1866 | * Toggle line numbers on/off. | |
1867 | * ':':: | |
1868 | * Open prompt. This allows you to specify what git command | |
1869 | * to run. Example: | |
1870 | * | |
1871 | * :log -p | |
1872 | **/ | |
d9d1c722 | 1873 | { 'Q', REQ_QUIT }, |
468876c9 JF |
1874 | { 'z', REQ_STOP_LOADING }, |
1875 | { 'v', REQ_SHOW_VERSION }, | |
1876 | { 'r', REQ_SCREEN_REDRAW }, | |
1877 | { 'n', REQ_TOGGLE_LINE_NUMBERS }, | |
1878 | { ':', REQ_PROMPT }, | |
1879 | ||
1880 | /* wgetch() with nodelay() enabled returns ERR when there's no input. */ | |
1881 | { ERR, REQ_SCREEN_UPDATE }, | |
1882 | ||
1883 | /* Use the ncurses SIGWINCH handler. */ | |
1884 | { KEY_RESIZE, REQ_SCREEN_RESIZE }, | |
1885 | }; | |
1886 | ||
1887 | static enum request | |
1888 | get_request(int key) | |
1889 | { | |
1890 | int i; | |
1891 | ||
1892 | for (i = 0; i < ARRAY_SIZE(keymap); i++) | |
1893 | if (keymap[i].alias == key) | |
1894 | return keymap[i].request; | |
1895 | ||
1896 | return (enum request) key; | |
1897 | } | |
1898 | ||
1899 | ||
6b161b31 JF |
1900 | /* |
1901 | * Status management | |
1902 | */ | |
2e8488b4 | 1903 | |
8855ada4 JF |
1904 | /* Whether or not the curses interface has been initialized. */ |
1905 | bool cursed = FALSE; | |
1906 | ||
6b161b31 JF |
1907 | /* The status window is used for polling keystrokes. */ |
1908 | static WINDOW *status_win; | |
4a2909a7 | 1909 | |
2e8488b4 | 1910 | /* Update status and title window. */ |
4a2909a7 JF |
1911 | static void |
1912 | report(const char *msg, ...) | |
1913 | { | |
6706b2ba JF |
1914 | static bool empty = TRUE; |
1915 | struct view *view = display[current_view]; | |
b76c2afc | 1916 | |
6706b2ba JF |
1917 | if (!empty || *msg) { |
1918 | va_list args; | |
4a2909a7 | 1919 | |
6706b2ba | 1920 | va_start(args, msg); |
4b76734f | 1921 | |
6706b2ba JF |
1922 | werase(status_win); |
1923 | wmove(status_win, 0, 0); | |
1924 | if (*msg) { | |
1925 | vwprintw(status_win, msg, args); | |
1926 | empty = FALSE; | |
1927 | } else { | |
1928 | empty = TRUE; | |
1929 | } | |
1930 | wrefresh(status_win); | |
b801d8b2 | 1931 | |
6706b2ba JF |
1932 | va_end(args); |
1933 | } | |
1934 | ||
1935 | update_view_title(view); | |
1936 | ||
1937 | /* Move the cursor to the right-most column of the cursor line. | |
1938 | * | |
1939 | * XXX: This could turn out to be a bit expensive, but it ensures that | |
1940 | * the cursor does not jump around. */ | |
1941 | if (view->lines) { | |
1942 | wmove(view->win, view->lineno - view->offset, view->width - 1); | |
1943 | wrefresh(view->win); | |
1944 | } | |
b801d8b2 JF |
1945 | } |
1946 | ||
6b161b31 JF |
1947 | /* Controls when nodelay should be in effect when polling user input. */ |
1948 | static void | |
1ba2ae4b | 1949 | set_nonblocking_input(bool loading) |
b801d8b2 | 1950 | { |
6706b2ba | 1951 | static unsigned int loading_views; |
b801d8b2 | 1952 | |
6706b2ba JF |
1953 | if ((loading == FALSE && loading_views-- == 1) || |
1954 | (loading == TRUE && loading_views++ == 0)) | |
1ba2ae4b | 1955 | nodelay(status_win, loading); |
6b161b31 JF |
1956 | } |
1957 | ||
1958 | static void | |
1959 | init_display(void) | |
1960 | { | |
1961 | int x, y; | |
b76c2afc | 1962 | |
6908bdbd JF |
1963 | /* Initialize the curses library */ |
1964 | if (isatty(STDIN_FILENO)) { | |
8855ada4 | 1965 | cursed = !!initscr(); |
6908bdbd JF |
1966 | } else { |
1967 | /* Leave stdin and stdout alone when acting as a pager. */ | |
1968 | FILE *io = fopen("/dev/tty", "r+"); | |
1969 | ||
8855ada4 | 1970 | cursed = !!newterm(NULL, io, io); |
6908bdbd JF |
1971 | } |
1972 | ||
8855ada4 JF |
1973 | if (!cursed) |
1974 | die("Failed to initialize curses"); | |
1975 | ||
2e8488b4 JF |
1976 | nonl(); /* Tell curses not to do NL->CR/NL on output */ |
1977 | cbreak(); /* Take input chars one at a time, no wait for \n */ | |
1978 | noecho(); /* Don't echo input */ | |
b801d8b2 | 1979 | leaveok(stdscr, TRUE); |
b801d8b2 JF |
1980 | |
1981 | if (has_colors()) | |
1982 | init_colors(); | |
1983 | ||
1984 | getmaxyx(stdscr, y, x); | |
1985 | status_win = newwin(1, 0, y - 1, 0); | |
1986 | if (!status_win) | |
1987 | die("Failed to create status window"); | |
1988 | ||
1989 | /* Enable keyboard mapping */ | |
1990 | keypad(status_win, TRUE); | |
78c70acd | 1991 | wbkgdset(status_win, get_line_attr(LINE_STATUS)); |
6b161b31 JF |
1992 | } |
1993 | ||
c34d9c9f JF |
1994 | |
1995 | /* | |
1996 | * Repository references | |
1997 | */ | |
1998 | ||
1999 | static struct ref *refs; | |
3a91b75e | 2000 | static size_t refs_size; |
c34d9c9f JF |
2001 | |
2002 | static struct ref ** | |
2003 | get_refs(char *id) | |
2004 | { | |
2005 | struct ref **id_refs = NULL; | |
2006 | size_t id_refs_size = 0; | |
2007 | size_t i; | |
2008 | ||
2009 | for (i = 0; i < refs_size; i++) { | |
2010 | struct ref **tmp; | |
2011 | ||
2012 | if (strcmp(id, refs[i].id)) | |
2013 | continue; | |
2014 | ||
2015 | tmp = realloc(id_refs, (id_refs_size + 1) * sizeof(*id_refs)); | |
2016 | if (!tmp) { | |
2017 | if (id_refs) | |
2018 | free(id_refs); | |
2019 | return NULL; | |
2020 | } | |
2021 | ||
2022 | id_refs = tmp; | |
3af8774e | 2023 | if (id_refs_size > 0) |
c34d9c9f | 2024 | id_refs[id_refs_size - 1]->next = 1; |
3af8774e JF |
2025 | id_refs[id_refs_size] = &refs[i]; |
2026 | ||
2027 | /* XXX: The properties of the commit chains ensures that we can | |
2028 | * safely modify the shared ref. The repo references will | |
2029 | * always be similar for the same id. */ | |
2030 | id_refs[id_refs_size]->next = 0; | |
2031 | id_refs_size++; | |
c34d9c9f JF |
2032 | } |
2033 | ||
2034 | return id_refs; | |
2035 | } | |
2036 | ||
2037 | static int | |
2038 | load_refs(void) | |
2039 | { | |
4685845e TH |
2040 | const char *cmd_env = getenv("TIG_LS_REMOTE"); |
2041 | const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE; | |
c34d9c9f JF |
2042 | FILE *pipe = popen(cmd, "r"); |
2043 | char buffer[BUFSIZ]; | |
2044 | char *line; | |
2045 | ||
2046 | if (!pipe) | |
2047 | return ERR; | |
2048 | ||
2049 | while ((line = fgets(buffer, sizeof(buffer), pipe))) { | |
2050 | char *name = strchr(line, '\t'); | |
2051 | struct ref *ref; | |
2052 | int namelen; | |
2053 | bool tag = FALSE; | |
6734f6b9 | 2054 | bool tag_commit = FALSE; |
c34d9c9f JF |
2055 | |
2056 | if (!name) | |
2057 | continue; | |
2058 | ||
2059 | *name++ = 0; | |
2060 | namelen = strlen(name) - 1; | |
6706b2ba JF |
2061 | |
2062 | /* Commits referenced by tags has "^{}" appended. */ | |
c34d9c9f JF |
2063 | if (name[namelen - 1] == '}') { |
2064 | while (namelen > 0 && name[namelen] != '^') | |
2065 | namelen--; | |
6734f6b9 JF |
2066 | if (namelen > 0) |
2067 | tag_commit = TRUE; | |
c34d9c9f JF |
2068 | } |
2069 | name[namelen] = 0; | |
2070 | ||
2071 | if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) { | |
6734f6b9 JF |
2072 | if (!tag_commit) |
2073 | continue; | |
c34d9c9f JF |
2074 | name += STRING_SIZE("refs/tags/"); |
2075 | tag = TRUE; | |
3af8774e JF |
2076 | |
2077 | } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) { | |
2078 | name += STRING_SIZE("refs/heads/"); | |
2079 | ||
2080 | } else if (!strcmp(name, "HEAD")) { | |
2081 | continue; | |
c34d9c9f JF |
2082 | } |
2083 | ||
2084 | refs = realloc(refs, sizeof(*refs) * (refs_size + 1)); | |
2085 | if (!refs) | |
2086 | return ERR; | |
2087 | ||
2088 | ref = &refs[refs_size++]; | |
2089 | ref->tag = tag; | |
2090 | ref->name = strdup(name); | |
2091 | if (!ref->name) | |
2092 | return ERR; | |
2093 | ||
2094 | string_copy(ref->id, line); | |
2095 | } | |
2096 | ||
2097 | if (ferror(pipe)) | |
2098 | return ERR; | |
2099 | ||
2100 | pclose(pipe); | |
2101 | ||
1b4b0bd9 JF |
2102 | if (refs_size == 0) |
2103 | die("Not a git repository"); | |
2104 | ||
c34d9c9f JF |
2105 | return OK; |
2106 | } | |
2107 | ||
6b161b31 JF |
2108 | /* |
2109 | * Main | |
2110 | */ | |
2111 | ||
b5c9e67f TH |
2112 | #if __GNUC__ >= 3 |
2113 | #define __NORETURN __attribute__((__noreturn__)) | |
2114 | #else | |
2115 | #define __NORETURN | |
2116 | #endif | |
2117 | ||
2118 | static void __NORETURN | |
6b161b31 JF |
2119 | quit(int sig) |
2120 | { | |
8855ada4 JF |
2121 | /* XXX: Restore tty modes and let the OS cleanup the rest! */ |
2122 | if (cursed) | |
2123 | endwin(); | |
6b161b31 JF |
2124 | exit(0); |
2125 | } | |
2126 | ||
c6704a4e JF |
2127 | static void __NORETURN |
2128 | die(const char *err, ...) | |
6b161b31 JF |
2129 | { |
2130 | va_list args; | |
2131 | ||
2132 | endwin(); | |
2133 | ||
2134 | va_start(args, err); | |
2135 | fputs("tig: ", stderr); | |
2136 | vfprintf(stderr, err, args); | |
2137 | fputs("\n", stderr); | |
2138 | va_end(args); | |
2139 | ||
2140 | exit(1); | |
2141 | } | |
2142 | ||
2143 | int | |
2144 | main(int argc, char *argv[]) | |
2145 | { | |
1ba2ae4b | 2146 | struct view *view; |
6b161b31 | 2147 | enum request request; |
1ba2ae4b | 2148 | size_t i; |
6b161b31 JF |
2149 | |
2150 | signal(SIGINT, quit); | |
2151 | ||
8855ada4 | 2152 | if (!parse_options(argc, argv)) |
6b161b31 JF |
2153 | return 0; |
2154 | ||
c34d9c9f JF |
2155 | if (load_refs() == ERR) |
2156 | die("Failed to load refs."); | |
2157 | ||
1ba2ae4b JF |
2158 | for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++) |
2159 | view->cmd_env = getenv(view->cmd_env); | |
2160 | ||
6b161b31 JF |
2161 | request = opt_request; |
2162 | ||
2163 | init_display(); | |
b801d8b2 JF |
2164 | |
2165 | while (view_driver(display[current_view], request)) { | |
6b161b31 | 2166 | int key; |
b801d8b2 JF |
2167 | int i; |
2168 | ||
6b161b31 JF |
2169 | foreach_view (view, i) |
2170 | update_view(view); | |
b801d8b2 JF |
2171 | |
2172 | /* Refresh, accept single keystroke of input */ | |
6b161b31 JF |
2173 | key = wgetch(status_win); |
2174 | request = get_request(key); | |
03a93dbb | 2175 | |
6706b2ba | 2176 | /* Some low-level request handling. This keeps access to |
fac7db6c JF |
2177 | * status_win restricted. */ |
2178 | switch (request) { | |
2179 | case REQ_PROMPT: | |
6908bdbd JF |
2180 | report(":"); |
2181 | /* Temporarily switch to line-oriented and echoed | |
2182 | * input. */ | |
03a93dbb JF |
2183 | nocbreak(); |
2184 | echo(); | |
49f2b43f JF |
2185 | |
2186 | if (wgetnstr(status_win, opt_cmd + 4, sizeof(opt_cmd) - 4) == OK) { | |
2187 | memcpy(opt_cmd, "git ", 4); | |
2188 | opt_request = REQ_VIEW_PAGER; | |
2189 | } else { | |
2190 | request = ERR; | |
2191 | } | |
2192 | ||
6908bdbd JF |
2193 | noecho(); |
2194 | cbreak(); | |
fac7db6c JF |
2195 | break; |
2196 | ||
2197 | case REQ_SCREEN_RESIZE: | |
2198 | { | |
2199 | int height, width; | |
2200 | ||
2201 | getmaxyx(stdscr, height, width); | |
2202 | ||
2203 | /* Resize the status view and let the view driver take | |
2204 | * care of resizing the displayed views. */ | |
2205 | wresize(status_win, 1, width); | |
2206 | mvwin(status_win, height - 1, 0); | |
2207 | wrefresh(status_win); | |
2208 | break; | |
2209 | } | |
2210 | default: | |
2211 | break; | |
03a93dbb | 2212 | } |
b801d8b2 JF |
2213 | } |
2214 | ||
2215 | quit(0); | |
2216 | ||
2217 | return 0; | |
2218 | } | |
2219 | ||
2220 | /** | |
0721c53a | 2221 | * [[refspec]] |
3a11b38f JF |
2222 | * Revision specification |
2223 | * ---------------------- | |
0721c53a | 2224 | * This section describes various ways to specify what revisions to display |
3a11b38f JF |
2225 | * or otherwise limit the view to. tig(1) does not itself parse the described |
2226 | * revision options so refer to the relevant git man pages for futher | |
2227 | * information. Relevant man pages besides git-log(1) are git-diff(1) and | |
2228 | * git-rev-list(1). | |
468876c9 | 2229 | * |
3a11b38f JF |
2230 | * You can tune the interaction with git by making use of the options |
2231 | * explained in this section. For example, by configuring the environment | |
2232 | * variables described in the <<view-commands, "View commands">> section. | |
2233 | * | |
2234 | * Limit by path name | |
2235 | * ~~~~~~~~~~~~~~~~~~ | |
ab46037d JF |
2236 | * If you are interested only in those revisions that made changes to a |
2237 | * specific file (or even several files) list the files like this: | |
2238 | * | |
c760e6ba | 2239 | * $ tig log Makefile README |
ab46037d JF |
2240 | * |
2241 | * To avoid ambiguity with repository references such as tag name, be sure | |
2242 | * to separate file names from other git options using "\--". So if you | |
2243 | * have a file named 'master' it will clash with the reference named | |
2244 | * 'master', and thus you will have to use: | |
2245 | * | |
1b4b0bd9 | 2246 | * $ tig log -- master |
ab46037d JF |
2247 | * |
2248 | * NOTE: For the main view, avoiding ambiguity will in some cases require | |
2249 | * you to specify two "\--" options. The first will make tig(1) stop | |
2250 | * option processing and the latter will be passed to git log. | |
2251 | * | |
468876c9 JF |
2252 | * Limit by date or number |
2253 | * ~~~~~~~~~~~~~~~~~~~~~~~ | |
2254 | * To speed up interaction with git, you can limit the amount of commits | |
2255 | * to show both for the log and main view. Either limit by date using | |
2256 | * e.g. `--since=1.month` or limit by the number of commits using `-n400`. | |
2257 | * | |
3a11b38f JF |
2258 | * If you are only interested in changed that happened between two dates |
2259 | * you can use: | |
2260 | * | |
c760e6ba | 2261 | * $ tig -- --after="May 5th" --before="2006-05-16 15:44" |
468876c9 | 2262 | * |
c760e6ba JF |
2263 | * NOTE: If you want to avoid having to quote dates containing spaces you |
2264 | * can use "." instead, e.g. `--after=May.5th`. | |
3a11b38f JF |
2265 | * |
2266 | * Limiting by commit ranges | |
2267 | * ~~~~~~~~~~~~~~~~~~~~~~~~~ | |
468876c9 JF |
2268 | * Alternatively, commits can be limited to a specific range, such as |
2269 | * "all commits between 'tag-1.0' and 'tag-2.0'". For example: | |
2270 | * | |
2271 | * $ tig log tag-1.0..tag-2.0 | |
2272 | * | |
2273 | * This way of commit limiting makes it trivial to only browse the commits | |
2274 | * which haven't been pushed to a remote branch. Assuming 'origin' is your | |
2275 | * upstream remote branch, using: | |
2276 | * | |
2277 | * $ tig log origin..HEAD | |
2278 | * | |
2279 | * will list what will be pushed to the remote branch. Optionally, the ending | |
2280 | * 'HEAD' can be left out since it is implied. | |
2281 | * | |
2282 | * Limiting by reachability | |
2283 | * ~~~~~~~~~~~~~~~~~~~~~~~~ | |
2284 | * Git interprets the range specifier "tag-1.0..tag-2.0" as | |
2285 | * "all commits reachable from 'tag-2.0' but not from 'tag-1.0'". | |
3a11b38f JF |
2286 | * Where reachability refers to what commits are ancestors (or part of the |
2287 | * history) of the branch or tagged revision in question. | |
2288 | * | |
468876c9 JF |
2289 | * If you prefer to specify which commit to preview in this way use the |
2290 | * following: | |
2291 | * | |
2292 | * $ tig log tag-2.0 ^tag-1.0 | |
2293 | * | |
57bdf034 JF |
2294 | * You can think of '^' as a negation operator. Using this alternate syntax, |
2295 | * it is possible to further prune commits by specifying multiple branch | |
2296 | * cut offs. | |
468876c9 | 2297 | * |
3a11b38f JF |
2298 | * Combining revisions specification |
2299 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
2300 | * Revisions options can to some degree be combined, which makes it possible | |
2301 | * to say "show at most 20 commits from within the last month that changed | |
2302 | * files under the Documentation/ directory." | |
2303 | * | |
2304 | * $ tig -- --since=1.month -n20 -- Documentation/ | |
2305 | * | |
2306 | * Examining all repository references | |
2307 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
2308 | * In some cases, it can be useful to query changes across all references | |
2309 | * in a repository. An example is to ask "did any line of development in | |
2310 | * this repository change a particular file within the last week". This | |
2311 | * can be accomplished using: | |
2312 | * | |
2313 | * $ tig -- --all --since=1.week -- Makefile | |
2314 | * | |
6706b2ba JF |
2315 | * BUGS |
2316 | * ---- | |
2317 | * Known bugs and problems: | |
2318 | * | |
2319 | * - If the screen width is very small the main view can draw | |
468876c9 JF |
2320 | * outside the current view causing bad wrapping. Same goes |
2321 | * for title and status windows. | |
6706b2ba | 2322 | * |
4c6fabc2 JF |
2323 | * TODO |
2324 | * ---- | |
2325 | * Features that should be explored. | |
2326 | * | |
fac7db6c | 2327 | * - Searching. |
4c6fabc2 JF |
2328 | * |
2329 | * - Locale support. | |
2330 | * | |
b801d8b2 JF |
2331 | * COPYRIGHT |
2332 | * --------- | |
4a2909a7 | 2333 | * Copyright (c) Jonas Fonseca <fonseca@diku.dk>, 2006 |
b801d8b2 JF |
2334 | * |
2335 | * This program is free software; you can redistribute it and/or modify | |
2336 | * it under the terms of the GNU General Public License as published by | |
2337 | * the Free Software Foundation; either version 2 of the License, or | |
2338 | * (at your option) any later version. | |
2339 | * | |
2340 | * SEE ALSO | |
2341 | * -------- | |
4c6fabc2 | 2342 | * [verse] |
b801d8b2 JF |
2343 | * link:http://www.kernel.org/pub/software/scm/git/docs/[git(7)], |
2344 | * link:http://www.kernel.org/pub/software/scm/cogito/docs/[cogito(7)] | |
4c6fabc2 | 2345 | * gitk(1): git repository browser written using tcl/tk, |
c6704a4e | 2346 | * qgit(1): git repository browser written using c++/Qt, |
4c6fabc2 | 2347 | * gitview(1): git repository browser written using python/gtk. |
b801d8b2 | 2348 | **/ |