Commit | Line | Data |
---|---|---|
4a2909a7 | 1 | /* Copyright (c) 2006 Jonas Fonseca <fonseca@diku.dk> |
192d9a60 | 2 | * |
5cfbde75 JF |
3 | * This program is free software; you can redistribute it and/or |
4 | * modify it under the terms of the GNU General Public License as | |
5 | * published by the Free Software Foundation; either version 2 of | |
6 | * the License, or (at your option) any later version. | |
192d9a60 JF |
7 | * |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | */ | |
b801d8b2 | 13 | |
b76c2afc | 14 | #ifndef VERSION |
8c11094f | 15 | #define VERSION "tig-0.3" |
b76c2afc JF |
16 | #endif |
17 | ||
8855ada4 JF |
18 | #ifndef DEBUG |
19 | #define NDEBUG | |
20 | #endif | |
21 | ||
22f66b0a | 22 | #include <assert.h> |
4c6fabc2 | 23 | #include <errno.h> |
22f66b0a JF |
24 | #include <ctype.h> |
25 | #include <signal.h> | |
b801d8b2 | 26 | #include <stdarg.h> |
b801d8b2 | 27 | #include <stdio.h> |
22f66b0a | 28 | #include <stdlib.h> |
b801d8b2 | 29 | #include <string.h> |
6908bdbd | 30 | #include <unistd.h> |
b76c2afc | 31 | #include <time.h> |
b801d8b2 JF |
32 | |
33 | #include <curses.h> | |
b801d8b2 | 34 | |
e2da526d JF |
35 | #if __GNUC__ >= 3 |
36 | #define __NORETURN __attribute__((__noreturn__)) | |
37 | #else | |
38 | #define __NORETURN | |
39 | #endif | |
40 | ||
41 | static void __NORETURN die(const char *err, ...); | |
b801d8b2 | 42 | static void report(const char *msg, ...); |
4a63c884 | 43 | static int read_properties(FILE *pipe, const char *separators, int (*read)(char *, int, char *, int)); |
1ba2ae4b | 44 | static void set_nonblocking_input(bool loading); |
10e290ee | 45 | static size_t utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed); |
6b161b31 JF |
46 | |
47 | #define ABS(x) ((x) >= 0 ? (x) : -(x)) | |
48 | #define MIN(x, y) ((x) < (y) ? (x) : (y)) | |
49 | ||
50 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) | |
51 | #define STRING_SIZE(x) (sizeof(x) - 1) | |
b76c2afc | 52 | |
2e8488b4 JF |
53 | #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */ |
54 | #define SIZEOF_CMD 1024 /* Size of command buffer. */ | |
54efb62b | 55 | #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */ |
b801d8b2 | 56 | |
82e78006 JF |
57 | /* This color name can be used to refer to the default term colors. */ |
58 | #define COLOR_DEFAULT (-1) | |
78c70acd | 59 | |
82e78006 | 60 | /* The format and size of the date column in the main view. */ |
4c6fabc2 | 61 | #define DATE_FORMAT "%Y-%m-%d %H:%M" |
6b161b31 | 62 | #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ") |
4c6fabc2 | 63 | |
10e290ee JF |
64 | #define AUTHOR_COLS 20 |
65 | ||
a28bcc22 | 66 | /* The default interval between line numbers. */ |
4a2909a7 | 67 | #define NUMBER_INTERVAL 1 |
82e78006 | 68 | |
6706b2ba JF |
69 | #define TABSIZE 8 |
70 | ||
a28bcc22 JF |
71 | #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3) |
72 | ||
8eb62770 JF |
73 | #define TIG_LS_REMOTE \ |
74 | "git ls-remote . 2>/dev/null" | |
75 | ||
76 | #define TIG_DIFF_CMD \ | |
77 | "git show --patch-with-stat --find-copies-harder -B -C %s" | |
78 | ||
79 | #define TIG_LOG_CMD \ | |
80 | "git log --cc --stat -n100 %s" | |
81 | ||
82 | #define TIG_MAIN_CMD \ | |
83 | "git log --topo-order --stat --pretty=raw %s" | |
84 | ||
85 | /* XXX: Needs to be defined to the empty string. */ | |
86 | #define TIG_HELP_CMD "" | |
87 | #define TIG_PAGER_CMD "" | |
88 | ||
8855ada4 | 89 | /* Some ascii-shorthands fitted into the ncurses namespace. */ |
a28bcc22 JF |
90 | #define KEY_TAB '\t' |
91 | #define KEY_RETURN '\r' | |
4a2909a7 JF |
92 | #define KEY_ESC 27 |
93 | ||
6706b2ba | 94 | |
c34d9c9f | 95 | struct ref { |
468876c9 JF |
96 | char *name; /* Ref name; tag or head names are shortened. */ |
97 | char id[41]; /* Commit SHA1 ID */ | |
98 | unsigned int tag:1; /* Is it a tag? */ | |
99 | unsigned int next:1; /* For ref lists: are there more refs? */ | |
c34d9c9f JF |
100 | }; |
101 | ||
ff26aa29 | 102 | static struct ref **get_refs(char *id); |
4c6fabc2 | 103 | |
660e09ad JF |
104 | struct int_map { |
105 | const char *name; | |
106 | int namelen; | |
107 | int value; | |
108 | }; | |
109 | ||
110 | static int | |
111 | set_from_int_map(struct int_map *map, size_t map_size, | |
112 | int *value, const char *name, int namelen) | |
113 | { | |
114 | ||
115 | int i; | |
116 | ||
117 | for (i = 0; i < map_size; i++) | |
118 | if (namelen == map[i].namelen && | |
119 | !strncasecmp(name, map[i].name, namelen)) { | |
120 | *value = map[i].value; | |
121 | return OK; | |
122 | } | |
123 | ||
124 | return ERR; | |
125 | } | |
126 | ||
6706b2ba | 127 | |
03a93dbb JF |
128 | /* |
129 | * String helpers | |
130 | */ | |
78c70acd | 131 | |
82e78006 | 132 | static inline void |
4685845e | 133 | string_ncopy(char *dst, const char *src, int dstlen) |
82e78006 JF |
134 | { |
135 | strncpy(dst, src, dstlen - 1); | |
136 | dst[dstlen - 1] = 0; | |
03a93dbb | 137 | |
82e78006 JF |
138 | } |
139 | ||
140 | /* Shorthand for safely copying into a fixed buffer. */ | |
141 | #define string_copy(dst, src) \ | |
142 | string_ncopy(dst, src, sizeof(dst)) | |
143 | ||
4a63c884 JF |
144 | static char * |
145 | chomp_string(char *name) | |
146 | { | |
147 | int namelen; | |
148 | ||
149 | while (isspace(*name)) | |
150 | name++; | |
151 | ||
152 | namelen = strlen(name) - 1; | |
153 | while (namelen > 0 && isspace(name[namelen])) | |
154 | name[namelen--] = 0; | |
155 | ||
156 | return name; | |
157 | } | |
158 | ||
cc2d1364 JF |
159 | static bool |
160 | string_nformat(char *buf, size_t bufsize, int *bufpos, const char *fmt, ...) | |
161 | { | |
162 | va_list args; | |
163 | int pos = bufpos ? *bufpos : 0; | |
164 | ||
165 | va_start(args, fmt); | |
166 | pos += vsnprintf(buf + pos, bufsize - pos, fmt, args); | |
167 | va_end(args); | |
168 | ||
169 | if (bufpos) | |
170 | *bufpos = pos; | |
171 | ||
172 | return pos >= bufsize ? FALSE : TRUE; | |
173 | } | |
174 | ||
175 | #define string_format(buf, fmt, args...) \ | |
176 | string_nformat(buf, sizeof(buf), NULL, fmt, args) | |
177 | ||
178 | #define string_format_from(buf, from, fmt, args...) \ | |
179 | string_nformat(buf, sizeof(buf), from, fmt, args) | |
6706b2ba | 180 | |
03a93dbb JF |
181 | /* Shell quoting |
182 | * | |
183 | * NOTE: The following is a slightly modified copy of the git project's shell | |
184 | * quoting routines found in the quote.c file. | |
185 | * | |
186 | * Help to copy the thing properly quoted for the shell safety. any single | |
187 | * quote is replaced with '\'', any exclamation point is replaced with '\!', | |
188 | * and the whole thing is enclosed in a | |
189 | * | |
190 | * E.g. | |
191 | * original sq_quote result | |
192 | * name ==> name ==> 'name' | |
193 | * a b ==> a b ==> 'a b' | |
194 | * a'b ==> a'\''b ==> 'a'\''b' | |
195 | * a!b ==> a'\!'b ==> 'a'\!'b' | |
196 | */ | |
197 | ||
198 | static size_t | |
199 | sq_quote(char buf[SIZEOF_CMD], size_t bufsize, const char *src) | |
200 | { | |
201 | char c; | |
202 | ||
a9274b95 | 203 | #define BUFPUT(x) do { if (bufsize < SIZEOF_CMD) buf[bufsize++] = (x); } while (0) |
03a93dbb JF |
204 | |
205 | BUFPUT('\''); | |
206 | while ((c = *src++)) { | |
207 | if (c == '\'' || c == '!') { | |
208 | BUFPUT('\''); | |
209 | BUFPUT('\\'); | |
210 | BUFPUT(c); | |
211 | BUFPUT('\''); | |
212 | } else { | |
213 | BUFPUT(c); | |
214 | } | |
215 | } | |
216 | BUFPUT('\''); | |
217 | ||
218 | return bufsize; | |
219 | } | |
220 | ||
82e78006 | 221 | |
24b5b3e0 JF |
222 | /* |
223 | * User requests | |
224 | */ | |
225 | ||
226 | #define REQ_INFO \ | |
227 | /* XXX: Keep the view request first and in sync with views[]. */ \ | |
228 | REQ_GROUP("View switching") \ | |
229 | REQ_(VIEW_MAIN, "Show main view"), \ | |
230 | REQ_(VIEW_DIFF, "Show diff view"), \ | |
231 | REQ_(VIEW_LOG, "Show log view"), \ | |
232 | REQ_(VIEW_HELP, "Show help page"), \ | |
233 | REQ_(VIEW_PAGER, "Show pager view"), \ | |
234 | \ | |
235 | REQ_GROUP("View manipulation") \ | |
236 | REQ_(ENTER, "Enter current line and scroll"), \ | |
237 | REQ_(NEXT, "Move to next"), \ | |
238 | REQ_(PREVIOUS, "Move to previous"), \ | |
239 | REQ_(VIEW_NEXT, "Move focus to next view"), \ | |
240 | REQ_(VIEW_CLOSE, "Close the current view"), \ | |
241 | REQ_(QUIT, "Close all views and quit"), \ | |
242 | \ | |
243 | REQ_GROUP("Cursor navigation") \ | |
244 | REQ_(MOVE_UP, "Move cursor one line up"), \ | |
245 | REQ_(MOVE_DOWN, "Move cursor one line down"), \ | |
246 | REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \ | |
247 | REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \ | |
248 | REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \ | |
249 | REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \ | |
250 | \ | |
251 | REQ_GROUP("Scrolling") \ | |
252 | REQ_(SCROLL_LINE_UP, "Scroll one line up"), \ | |
253 | REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \ | |
254 | REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \ | |
255 | REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \ | |
256 | \ | |
257 | REQ_GROUP("Misc") \ | |
258 | REQ_(PROMPT, "Bring up the prompt"), \ | |
259 | REQ_(SCREEN_UPDATE, "Update the screen"), \ | |
260 | REQ_(SCREEN_REDRAW, "Redraw the screen"), \ | |
261 | REQ_(SCREEN_RESIZE, "Resize the screen"), \ | |
262 | REQ_(SHOW_VERSION, "Show version information"), \ | |
263 | REQ_(STOP_LOADING, "Stop all loading views"), \ | |
54efb62b JF |
264 | REQ_(TOGGLE_LINENO, "Toggle line numbers"), \ |
265 | REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), | |
24b5b3e0 JF |
266 | |
267 | ||
268 | /* User action requests. */ | |
269 | enum request { | |
270 | #define REQ_GROUP(help) | |
271 | #define REQ_(req, help) REQ_##req | |
272 | ||
273 | /* Offset all requests to avoid conflicts with ncurses getch values. */ | |
274 | REQ_OFFSET = KEY_MAX + 1, | |
275 | REQ_INFO | |
276 | ||
277 | #undef REQ_GROUP | |
278 | #undef REQ_ | |
279 | }; | |
280 | ||
281 | struct request_info { | |
282 | enum request request; | |
283 | char *help; | |
284 | }; | |
285 | ||
286 | static struct request_info req_info[] = { | |
287 | #define REQ_GROUP(help) { 0, (help) }, | |
288 | #define REQ_(req, help) { REQ_##req, (help) } | |
289 | REQ_INFO | |
290 | #undef REQ_GROUP | |
291 | #undef REQ_ | |
292 | }; | |
293 | ||
8eb62770 JF |
294 | /* |
295 | * Options | |
296 | */ | |
b76c2afc | 297 | |
4b8c01a3 JF |
298 | static const char usage[] = |
299 | VERSION " (" __DATE__ ")\n" | |
300 | "\n" | |
301 | "Usage: tig [options]\n" | |
302 | " or: tig [options] [--] [git log options]\n" | |
303 | " or: tig [options] log [git log options]\n" | |
304 | " or: tig [options] diff [git diff options]\n" | |
305 | " or: tig [options] show [git show options]\n" | |
306 | " or: tig [options] < [git command output]\n" | |
307 | "\n" | |
308 | "Options:\n" | |
309 | " -l Start up in log view\n" | |
310 | " -d Start up in diff view\n" | |
311 | " -n[I], --line-number[=I] Show line numbers with given interval\n" | |
b3c965c9 | 312 | " -b[N], --tab-size[=N] Set number of spaces for tab expansion\n" |
4b8c01a3 JF |
313 | " -- Mark end of tig options\n" |
314 | " -v, --version Show version and exit\n" | |
315 | " -h, --help Show help message and exit\n"; | |
316 | ||
6706b2ba JF |
317 | /* Option and state variables. */ |
318 | static bool opt_line_number = FALSE; | |
54efb62b | 319 | static bool opt_rev_graph = TRUE; |
2e8488b4 | 320 | static int opt_num_interval = NUMBER_INTERVAL; |
6706b2ba | 321 | static int opt_tab_size = TABSIZE; |
6b161b31 | 322 | static enum request opt_request = REQ_VIEW_MAIN; |
03a93dbb | 323 | static char opt_cmd[SIZEOF_CMD] = ""; |
9989bf60 JF |
324 | static char opt_encoding[20] = ""; |
325 | static bool opt_utf8 = TRUE; | |
6908bdbd | 326 | static FILE *opt_pipe = NULL; |
b76c2afc | 327 | |
6dbf6c19 JF |
328 | enum option_type { |
329 | OPT_NONE, | |
330 | OPT_INT, | |
331 | }; | |
332 | ||
333 | static bool | |
334 | check_option(char *opt, char short_name, char *name, enum option_type type, ...) | |
335 | { | |
336 | va_list args; | |
337 | char *value = ""; | |
338 | int *number; | |
339 | ||
340 | if (opt[0] != '-') | |
341 | return FALSE; | |
342 | ||
343 | if (opt[1] == '-') { | |
344 | int namelen = strlen(name); | |
345 | ||
346 | opt += 2; | |
347 | ||
348 | if (strncmp(opt, name, namelen)) | |
349 | return FALSE; | |
350 | ||
351 | if (opt[namelen] == '=') | |
352 | value = opt + namelen + 1; | |
353 | ||
354 | } else { | |
355 | if (!short_name || opt[1] != short_name) | |
356 | return FALSE; | |
357 | value = opt + 2; | |
358 | } | |
359 | ||
360 | va_start(args, type); | |
361 | if (type == OPT_INT) { | |
362 | number = va_arg(args, int *); | |
363 | if (isdigit(*value)) | |
364 | *number = atoi(value); | |
365 | } | |
366 | va_end(args); | |
367 | ||
368 | return TRUE; | |
369 | } | |
370 | ||
b76c2afc | 371 | /* Returns the index of log or diff command or -1 to exit. */ |
8855ada4 | 372 | static bool |
b76c2afc JF |
373 | parse_options(int argc, char *argv[]) |
374 | { | |
375 | int i; | |
376 | ||
377 | for (i = 1; i < argc; i++) { | |
378 | char *opt = argv[i]; | |
379 | ||
6b161b31 | 380 | if (!strcmp(opt, "-l")) { |
4a2909a7 | 381 | opt_request = REQ_VIEW_LOG; |
6b161b31 JF |
382 | continue; |
383 | } | |
b76c2afc | 384 | |
6b161b31 | 385 | if (!strcmp(opt, "-d")) { |
4a2909a7 | 386 | opt_request = REQ_VIEW_DIFF; |
6b161b31 JF |
387 | continue; |
388 | } | |
b76c2afc | 389 | |
6dbf6c19 | 390 | if (check_option(opt, 'n', "line-number", OPT_INT, &opt_num_interval)) { |
6b161b31 JF |
391 | opt_line_number = TRUE; |
392 | continue; | |
393 | } | |
b76c2afc | 394 | |
6dbf6c19 JF |
395 | if (check_option(opt, 'b', "tab-size", OPT_INT, &opt_tab_size)) { |
396 | opt_tab_size = MIN(opt_tab_size, TABSIZE); | |
6706b2ba JF |
397 | continue; |
398 | } | |
399 | ||
6dbf6c19 | 400 | if (check_option(opt, 'v', "version", OPT_NONE)) { |
b76c2afc | 401 | printf("tig version %s\n", VERSION); |
8855ada4 | 402 | return FALSE; |
6b161b31 | 403 | } |
b76c2afc | 404 | |
6dbf6c19 | 405 | if (check_option(opt, 'h', "help", OPT_NONE)) { |
4b8c01a3 JF |
406 | printf(usage); |
407 | return FALSE; | |
408 | } | |
409 | ||
6908bdbd JF |
410 | if (!strcmp(opt, "--")) { |
411 | i++; | |
412 | break; | |
413 | } | |
03a93dbb | 414 | |
8855ada4 JF |
415 | if (!strcmp(opt, "log") || |
416 | !strcmp(opt, "diff") || | |
417 | !strcmp(opt, "show")) { | |
418 | opt_request = opt[0] == 'l' | |
419 | ? REQ_VIEW_LOG : REQ_VIEW_DIFF; | |
420 | break; | |
421 | } | |
422 | ||
03a93dbb | 423 | if (opt[0] && opt[0] != '-') |
6908bdbd | 424 | break; |
6b161b31 | 425 | |
bf174187 | 426 | die("unknown option '%s'\n\n%s", opt, usage); |
b76c2afc JF |
427 | } |
428 | ||
6908bdbd | 429 | if (!isatty(STDIN_FILENO)) { |
6908bdbd JF |
430 | opt_request = REQ_VIEW_PAGER; |
431 | opt_pipe = stdin; | |
432 | ||
433 | } else if (i < argc) { | |
434 | size_t buf_size; | |
435 | ||
6908bdbd | 436 | if (opt_request == REQ_VIEW_MAIN) |
8855ada4 JF |
437 | /* XXX: This is vulnerable to the user overriding |
438 | * options required for the main view parser. */ | |
6908bdbd JF |
439 | string_copy(opt_cmd, "git log --stat --pretty=raw"); |
440 | else | |
441 | string_copy(opt_cmd, "git"); | |
442 | buf_size = strlen(opt_cmd); | |
443 | ||
444 | while (buf_size < sizeof(opt_cmd) && i < argc) { | |
445 | opt_cmd[buf_size++] = ' '; | |
446 | buf_size = sq_quote(opt_cmd, buf_size, argv[i++]); | |
447 | } | |
448 | ||
449 | if (buf_size >= sizeof(opt_cmd)) | |
450 | die("command too long"); | |
451 | ||
452 | opt_cmd[buf_size] = 0; | |
453 | ||
454 | } | |
455 | ||
afdc35b3 JF |
456 | if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8")) |
457 | opt_utf8 = FALSE; | |
458 | ||
8855ada4 | 459 | return TRUE; |
b76c2afc JF |
460 | } |
461 | ||
462 | ||
54efb62b JF |
463 | /* |
464 | * Line-oriented content detection. | |
465 | */ | |
466 | ||
2e8488b4 | 467 | #define LINE_INFO \ |
660e09ad | 468 | LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
469 | LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
470 | LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
471 | LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \ | |
660e09ad JF |
472 | LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
473 | LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
474 | LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
475 | LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
476 | LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
477 | LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
478 | LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
479 | LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
480 | LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
481 | LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
6908bdbd | 482 | LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
8855ada4 | 483 | LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
6908bdbd JF |
484 | LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
485 | LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
8855ada4 JF |
486 | LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
487 | LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
7b99a34c | 488 | LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
489 | LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \ |
490 | LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
491 | LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
8855ada4 | 492 | LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
a28bcc22 | 493 | LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
a28bcc22 | 494 | LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
495 | LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \ |
496 | LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \ | |
497 | LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
6b161b31 JF |
498 | LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \ |
499 | LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \ | |
a28bcc22 JF |
500 | LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
501 | LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
502 | LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \ | |
c34d9c9f JF |
503 | LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
504 | LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \ | |
660e09ad | 505 | LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \ |
660e09ad | 506 | |
78c70acd | 507 | enum line_type { |
2e8488b4 JF |
508 | #define LINE(type, line, fg, bg, attr) \ |
509 | LINE_##type | |
510 | LINE_INFO | |
511 | #undef LINE | |
78c70acd JF |
512 | }; |
513 | ||
514 | struct line_info { | |
660e09ad JF |
515 | const char *name; /* Option name. */ |
516 | int namelen; /* Size of option name. */ | |
4685845e | 517 | const char *line; /* The start of line to match. */ |
2e8488b4 JF |
518 | int linelen; /* Size of string to match. */ |
519 | int fg, bg, attr; /* Color and text attributes for the lines. */ | |
78c70acd JF |
520 | }; |
521 | ||
2e8488b4 | 522 | static struct line_info line_info[] = { |
78c70acd | 523 | #define LINE(type, line, fg, bg, attr) \ |
660e09ad | 524 | { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) } |
2e8488b4 JF |
525 | LINE_INFO |
526 | #undef LINE | |
78c70acd JF |
527 | }; |
528 | ||
2e8488b4 JF |
529 | static enum line_type |
530 | get_line_type(char *line) | |
78c70acd JF |
531 | { |
532 | int linelen = strlen(line); | |
a28bcc22 | 533 | enum line_type type; |
78c70acd | 534 | |
a28bcc22 | 535 | for (type = 0; type < ARRAY_SIZE(line_info); type++) |
2e8488b4 | 536 | /* Case insensitive search matches Signed-off-by lines better. */ |
a28bcc22 JF |
537 | if (linelen >= line_info[type].linelen && |
538 | !strncasecmp(line_info[type].line, line, line_info[type].linelen)) | |
539 | return type; | |
78c70acd | 540 | |
2e8488b4 | 541 | return LINE_DEFAULT; |
78c70acd JF |
542 | } |
543 | ||
2e8488b4 | 544 | static inline int |
78c70acd JF |
545 | get_line_attr(enum line_type type) |
546 | { | |
2e8488b4 JF |
547 | assert(type < ARRAY_SIZE(line_info)); |
548 | return COLOR_PAIR(type) | line_info[type].attr; | |
78c70acd JF |
549 | } |
550 | ||
660e09ad JF |
551 | static struct line_info * |
552 | get_line_info(char *name, int namelen) | |
553 | { | |
554 | enum line_type type; | |
555 | int i; | |
556 | ||
557 | /* Diff-Header -> DIFF_HEADER */ | |
558 | for (i = 0; i < namelen; i++) { | |
559 | if (name[i] == '-') | |
560 | name[i] = '_'; | |
561 | else if (name[i] == '.') | |
562 | name[i] = '_'; | |
563 | } | |
564 | ||
565 | for (type = 0; type < ARRAY_SIZE(line_info); type++) | |
566 | if (namelen == line_info[type].namelen && | |
567 | !strncasecmp(line_info[type].name, name, namelen)) | |
568 | return &line_info[type]; | |
569 | ||
570 | return NULL; | |
571 | } | |
572 | ||
78c70acd JF |
573 | static void |
574 | init_colors(void) | |
575 | { | |
82e78006 JF |
576 | int default_bg = COLOR_BLACK; |
577 | int default_fg = COLOR_WHITE; | |
a28bcc22 | 578 | enum line_type type; |
78c70acd JF |
579 | |
580 | start_color(); | |
581 | ||
582 | if (use_default_colors() != ERR) { | |
82e78006 JF |
583 | default_bg = -1; |
584 | default_fg = -1; | |
78c70acd JF |
585 | } |
586 | ||
a28bcc22 JF |
587 | for (type = 0; type < ARRAY_SIZE(line_info); type++) { |
588 | struct line_info *info = &line_info[type]; | |
82e78006 JF |
589 | int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg; |
590 | int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg; | |
78c70acd | 591 | |
a28bcc22 | 592 | init_pair(type, fg, bg); |
78c70acd JF |
593 | } |
594 | } | |
595 | ||
fe7233c3 JF |
596 | struct line { |
597 | enum line_type type; | |
598 | void *data; /* User data */ | |
599 | }; | |
600 | ||
78c70acd | 601 | |
1899507c | 602 | /* |
37157fa0 JF |
603 | * Keys |
604 | */ | |
605 | ||
606 | struct keymap { | |
607 | int alias; | |
608 | int request; | |
609 | }; | |
610 | ||
611 | static struct keymap keymap[] = { | |
612 | /* View switching */ | |
613 | { 'm', REQ_VIEW_MAIN }, | |
614 | { 'd', REQ_VIEW_DIFF }, | |
615 | { 'l', REQ_VIEW_LOG }, | |
616 | { 'p', REQ_VIEW_PAGER }, | |
617 | { 'h', REQ_VIEW_HELP }, | |
618 | { '?', REQ_VIEW_HELP }, | |
619 | ||
620 | /* View manipulation */ | |
621 | { 'q', REQ_VIEW_CLOSE }, | |
622 | { KEY_TAB, REQ_VIEW_NEXT }, | |
623 | { KEY_RETURN, REQ_ENTER }, | |
624 | { KEY_UP, REQ_PREVIOUS }, | |
625 | { KEY_DOWN, REQ_NEXT }, | |
626 | ||
627 | /* Cursor navigation */ | |
628 | { 'k', REQ_MOVE_UP }, | |
629 | { 'j', REQ_MOVE_DOWN }, | |
630 | { KEY_HOME, REQ_MOVE_FIRST_LINE }, | |
631 | { KEY_END, REQ_MOVE_LAST_LINE }, | |
632 | { KEY_NPAGE, REQ_MOVE_PAGE_DOWN }, | |
633 | { ' ', REQ_MOVE_PAGE_DOWN }, | |
634 | { KEY_PPAGE, REQ_MOVE_PAGE_UP }, | |
635 | { 'b', REQ_MOVE_PAGE_UP }, | |
636 | { '-', REQ_MOVE_PAGE_UP }, | |
637 | ||
638 | /* Scrolling */ | |
639 | { KEY_IC, REQ_SCROLL_LINE_UP }, | |
640 | { KEY_DC, REQ_SCROLL_LINE_DOWN }, | |
641 | { 'w', REQ_SCROLL_PAGE_UP }, | |
642 | { 's', REQ_SCROLL_PAGE_DOWN }, | |
643 | ||
644 | /* Misc */ | |
645 | { 'Q', REQ_QUIT }, | |
646 | { 'z', REQ_STOP_LOADING }, | |
647 | { 'v', REQ_SHOW_VERSION }, | |
648 | { 'r', REQ_SCREEN_REDRAW }, | |
649 | { 'n', REQ_TOGGLE_LINENO }, | |
650 | { 'g', REQ_TOGGLE_REV_GRAPH}, | |
651 | { ':', REQ_PROMPT }, | |
652 | ||
653 | /* wgetch() with nodelay() enabled returns ERR when there's no input. */ | |
654 | { ERR, REQ_SCREEN_UPDATE }, | |
655 | ||
656 | /* Use the ncurses SIGWINCH handler. */ | |
657 | { KEY_RESIZE, REQ_SCREEN_RESIZE }, | |
658 | }; | |
659 | ||
660 | static enum request | |
661 | get_request(int key) | |
662 | { | |
663 | int i; | |
664 | ||
665 | for (i = 0; i < ARRAY_SIZE(keymap); i++) | |
666 | if (keymap[i].alias == key) | |
667 | return keymap[i].request; | |
668 | ||
669 | return (enum request) key; | |
670 | } | |
671 | ||
672 | struct key { | |
673 | char *name; | |
674 | int value; | |
675 | }; | |
676 | ||
677 | static struct key key_table[] = { | |
678 | { "Enter", KEY_RETURN }, | |
679 | { "Space", ' ' }, | |
680 | { "Backspace", KEY_BACKSPACE }, | |
681 | { "Tab", KEY_TAB }, | |
682 | { "Escape", KEY_ESC }, | |
683 | { "Left", KEY_LEFT }, | |
684 | { "Right", KEY_RIGHT }, | |
685 | { "Up", KEY_UP }, | |
686 | { "Down", KEY_DOWN }, | |
687 | { "Insert", KEY_IC }, | |
688 | { "Delete", KEY_DC }, | |
689 | { "Home", KEY_HOME }, | |
690 | { "End", KEY_END }, | |
691 | { "PageUp", KEY_PPAGE }, | |
692 | { "PageDown", KEY_NPAGE }, | |
693 | { "F1", KEY_F(1) }, | |
694 | { "F2", KEY_F(2) }, | |
695 | { "F3", KEY_F(3) }, | |
696 | { "F4", KEY_F(4) }, | |
697 | { "F5", KEY_F(5) }, | |
698 | { "F6", KEY_F(6) }, | |
699 | { "F7", KEY_F(7) }, | |
700 | { "F8", KEY_F(8) }, | |
701 | { "F9", KEY_F(9) }, | |
702 | { "F10", KEY_F(10) }, | |
703 | { "F11", KEY_F(11) }, | |
704 | { "F12", KEY_F(12) }, | |
705 | }; | |
706 | ||
707 | static char * | |
708 | get_key(enum request request) | |
709 | { | |
710 | static char buf[BUFSIZ]; | |
711 | static char key_char[] = "'X'"; | |
712 | int pos = 0; | |
713 | char *sep = " "; | |
714 | int i; | |
715 | ||
716 | buf[pos] = 0; | |
717 | ||
718 | for (i = 0; i < ARRAY_SIZE(keymap); i++) { | |
719 | char *seq = NULL; | |
720 | int key; | |
721 | ||
722 | if (keymap[i].request != request) | |
723 | continue; | |
724 | ||
725 | for (key = 0; key < ARRAY_SIZE(key_table); key++) | |
726 | if (key_table[key].value == keymap[i].alias) | |
727 | seq = key_table[key].name; | |
728 | ||
729 | if (seq == NULL && | |
730 | keymap[i].alias < 127 && | |
731 | isprint(keymap[i].alias)) { | |
732 | key_char[1] = (char) keymap[i].alias; | |
733 | seq = key_char; | |
734 | } | |
735 | ||
736 | if (!seq) | |
737 | seq = "'?'"; | |
738 | ||
739 | if (!string_format_from(buf, &pos, "%s%s", sep, seq)) | |
740 | return "Too many keybindings!"; | |
741 | sep = ", "; | |
742 | } | |
743 | ||
744 | return buf; | |
745 | } | |
746 | ||
747 | ||
748 | /* | |
1899507c JF |
749 | * User config file handling. |
750 | */ | |
751 | ||
5dc795f2 JF |
752 | static struct int_map color_map[] = { |
753 | #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name } | |
754 | COLOR_MAP(DEFAULT), | |
755 | COLOR_MAP(BLACK), | |
756 | COLOR_MAP(BLUE), | |
757 | COLOR_MAP(CYAN), | |
758 | COLOR_MAP(GREEN), | |
759 | COLOR_MAP(MAGENTA), | |
760 | COLOR_MAP(RED), | |
761 | COLOR_MAP(WHITE), | |
762 | COLOR_MAP(YELLOW), | |
763 | }; | |
764 | ||
9256ab05 JF |
765 | #define set_color(color, name) \ |
766 | set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name)) | |
660e09ad | 767 | |
5dc795f2 JF |
768 | static struct int_map attr_map[] = { |
769 | #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name } | |
770 | ATTR_MAP(NORMAL), | |
771 | ATTR_MAP(BLINK), | |
772 | ATTR_MAP(BOLD), | |
773 | ATTR_MAP(DIM), | |
774 | ATTR_MAP(REVERSE), | |
775 | ATTR_MAP(STANDOUT), | |
776 | ATTR_MAP(UNDERLINE), | |
777 | }; | |
778 | ||
9256ab05 JF |
779 | #define set_attribute(attr, name) \ |
780 | set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name)) | |
660e09ad | 781 | |
3c3801c2 JF |
782 | static int config_lineno; |
783 | static bool config_errors; | |
784 | static char *config_msg; | |
785 | ||
5bfd96c7 | 786 | /* Wants: object fgcolor bgcolor [attr] */ |
660e09ad | 787 | static int |
5bfd96c7 | 788 | option_color_command(int argc, char *argv[]) |
660e09ad | 789 | { |
bca8fcaa JF |
790 | struct line_info *info; |
791 | ||
9256ab05 JF |
792 | if (argc != 3 && argc != 4) { |
793 | config_msg = "Wrong number of arguments given to color command"; | |
794 | return ERR; | |
795 | } | |
796 | ||
797 | info = get_line_info(argv[0], strlen(argv[0])); | |
bca8fcaa JF |
798 | if (!info) { |
799 | config_msg = "Unknown color name"; | |
800 | return ERR; | |
801 | } | |
660e09ad | 802 | |
9256ab05 | 803 | if (set_color(&info->fg, argv[1]) == ERR) { |
bca8fcaa JF |
804 | config_msg = "Unknown color"; |
805 | return ERR; | |
806 | } | |
660e09ad | 807 | |
9256ab05 | 808 | if (set_color(&info->bg, argv[2]) == ERR) { |
bca8fcaa JF |
809 | config_msg = "Unknown color"; |
810 | return ERR; | |
811 | } | |
660e09ad | 812 | |
9256ab05 | 813 | if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) { |
bca8fcaa JF |
814 | config_msg = "Unknown attribute"; |
815 | return ERR; | |
660e09ad JF |
816 | } |
817 | ||
bca8fcaa JF |
818 | return OK; |
819 | } | |
820 | ||
5bfd96c7 JF |
821 | /* Wants: name = value */ |
822 | static int | |
823 | option_set_command(int argc, char *argv[]) | |
824 | { | |
825 | if (argc != 3) { | |
826 | config_msg = "Wrong number of arguments given to set command"; | |
827 | return ERR; | |
828 | } | |
829 | ||
830 | if (strcmp(argv[1], "=")) { | |
831 | config_msg = "No value assigned"; | |
832 | return ERR; | |
833 | } | |
834 | ||
835 | if (!strcmp(argv[0], "show-rev-graph")) { | |
836 | opt_rev_graph = (!strcmp(argv[2], "1") || | |
837 | !strcmp(argv[2], "true") || | |
838 | !strcmp(argv[2], "yes")); | |
839 | return OK; | |
840 | } | |
841 | ||
842 | if (!strcmp(argv[0], "line-number-interval")) { | |
843 | opt_num_interval = atoi(argv[2]); | |
844 | return OK; | |
845 | } | |
846 | ||
847 | if (!strcmp(argv[0], "tab-size")) { | |
848 | opt_tab_size = atoi(argv[2]); | |
849 | return OK; | |
850 | } | |
851 | ||
852 | if (!strcmp(argv[0], "encoding")) { | |
853 | string_copy(opt_encoding, argv[2]); | |
854 | return OK; | |
855 | } | |
856 | ||
857 | return ERR; | |
858 | } | |
859 | ||
bca8fcaa | 860 | static int |
9256ab05 | 861 | set_option(char *opt, char *value) |
bca8fcaa | 862 | { |
9256ab05 JF |
863 | char *argv[16]; |
864 | int valuelen; | |
865 | int argc = 0; | |
866 | ||
867 | /* Tokenize */ | |
868 | while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) { | |
869 | argv[argc++] = value; | |
870 | ||
871 | value += valuelen; | |
872 | if (!*value) | |
873 | break; | |
874 | ||
875 | *value++ = 0; | |
876 | while (isspace(*value)) | |
877 | value++; | |
878 | } | |
879 | ||
880 | if (!strcmp(opt, "color")) | |
5bfd96c7 JF |
881 | return option_color_command(argc, argv); |
882 | ||
883 | if (!strcmp(opt, "set")) | |
884 | return option_set_command(argc, argv); | |
bca8fcaa | 885 | |
660e09ad JF |
886 | return ERR; |
887 | } | |
888 | ||
889 | static int | |
3c3801c2 JF |
890 | read_option(char *opt, int optlen, char *value, int valuelen) |
891 | { | |
892 | config_lineno++; | |
893 | config_msg = "Internal error"; | |
894 | ||
895 | optlen = strcspn(opt, "#;"); | |
896 | if (optlen == 0) { | |
897 | /* The whole line is a commend or empty. */ | |
898 | return OK; | |
899 | ||
900 | } else if (opt[optlen] != 0) { | |
901 | /* Part of the option name is a comment, so the value part | |
902 | * should be ignored. */ | |
903 | valuelen = 0; | |
904 | opt[optlen] = value[valuelen] = 0; | |
905 | } else { | |
906 | /* Else look for comment endings in the value. */ | |
907 | valuelen = strcspn(value, "#;"); | |
908 | value[valuelen] = 0; | |
909 | } | |
910 | ||
9256ab05 | 911 | if (set_option(opt, value) == ERR) { |
3c3801c2 JF |
912 | fprintf(stderr, "Error on line %d, near '%.*s' option: %s\n", |
913 | config_lineno, optlen, opt, config_msg); | |
914 | config_errors = TRUE; | |
915 | } | |
916 | ||
917 | /* Always keep going if errors are encountered. */ | |
918 | return OK; | |
919 | } | |
920 | ||
921 | static int | |
660e09ad JF |
922 | load_options(void) |
923 | { | |
924 | char *home = getenv("HOME"); | |
925 | char buf[1024]; | |
926 | FILE *file; | |
927 | ||
3c3801c2 JF |
928 | config_lineno = 0; |
929 | config_errors = FALSE; | |
930 | ||
cc2d1364 | 931 | if (!home || !string_format(buf, "%s/.tigrc", home)) |
660e09ad JF |
932 | return ERR; |
933 | ||
934 | /* It's ok that the file doesn't exist. */ | |
935 | file = fopen(buf, "r"); | |
936 | if (!file) | |
937 | return OK; | |
938 | ||
3c3801c2 JF |
939 | if (read_properties(file, " \t", read_option) == ERR || |
940 | config_errors == TRUE) | |
941 | fprintf(stderr, "Errors while loading %s.\n", buf); | |
942 | ||
943 | return OK; | |
660e09ad JF |
944 | } |
945 | ||
946 | ||
d839253b | 947 | /* |
468876c9 | 948 | * The viewer |
d839253b | 949 | */ |
c2124ccd JF |
950 | |
951 | struct view; | |
fe7233c3 | 952 | struct view_ops; |
c2124ccd JF |
953 | |
954 | /* The display array of active views and the index of the current view. */ | |
955 | static struct view *display[2]; | |
956 | static unsigned int current_view; | |
957 | ||
958 | #define foreach_view(view, i) \ | |
959 | for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++) | |
960 | ||
9f41488f | 961 | #define displayed_views() (display[1] != NULL ? 2 : 1) |
c2124ccd | 962 | |
d839253b | 963 | /* Current head and commit ID */ |
c2124ccd JF |
964 | static char ref_commit[SIZEOF_REF] = "HEAD"; |
965 | static char ref_head[SIZEOF_REF] = "HEAD"; | |
966 | ||
b801d8b2 | 967 | struct view { |
03a93dbb | 968 | const char *name; /* View name */ |
4685845e TH |
969 | const char *cmd_fmt; /* Default command line format */ |
970 | const char *cmd_env; /* Command line set via environment */ | |
971 | const char *id; /* Points to either of ref_{head,commit} */ | |
6b161b31 | 972 | |
fe7233c3 | 973 | struct view_ops *ops; /* View operations */ |
22f66b0a | 974 | |
03a93dbb | 975 | char cmd[SIZEOF_CMD]; /* Command buffer */ |
49f2b43f JF |
976 | char ref[SIZEOF_REF]; /* Hovered commit reference */ |
977 | char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */ | |
2e8488b4 | 978 | |
8855ada4 JF |
979 | int height, width; /* The width and height of the main window */ |
980 | WINDOW *win; /* The main window */ | |
981 | WINDOW *title; /* The title window living below the main window */ | |
b801d8b2 JF |
982 | |
983 | /* Navigation */ | |
984 | unsigned long offset; /* Offset of the window top */ | |
985 | unsigned long lineno; /* Current line number */ | |
986 | ||
f6da0b66 JF |
987 | /* If non-NULL, points to the view that opened this view. If this view |
988 | * is closed tig will switch back to the parent view. */ | |
989 | struct view *parent; | |
990 | ||
b801d8b2 JF |
991 | /* Buffering */ |
992 | unsigned long lines; /* Total number of lines */ | |
fe7233c3 | 993 | struct line *line; /* Line index */ |
e2c01617 | 994 | unsigned long line_size;/* Total number of allocated lines */ |
8855ada4 | 995 | unsigned int digits; /* Number of digits in the lines member. */ |
b801d8b2 JF |
996 | |
997 | /* Loading */ | |
998 | FILE *pipe; | |
2e8488b4 | 999 | time_t start_time; |
b801d8b2 JF |
1000 | }; |
1001 | ||
fe7233c3 JF |
1002 | struct view_ops { |
1003 | /* What type of content being displayed. Used in the title bar. */ | |
1004 | const char *type; | |
1005 | /* Draw one line; @lineno must be < view->height. */ | |
1006 | bool (*draw)(struct view *view, struct line *line, unsigned int lineno); | |
1007 | /* Read one line; updates view->line. */ | |
701e4f5d | 1008 | bool (*read)(struct view *view, char *data); |
fe7233c3 JF |
1009 | /* Depending on view, change display based on current line. */ |
1010 | bool (*enter)(struct view *view, struct line *line); | |
1011 | }; | |
1012 | ||
6b161b31 JF |
1013 | static struct view_ops pager_ops; |
1014 | static struct view_ops main_ops; | |
a28bcc22 | 1015 | |
95d7ddcd JF |
1016 | #define VIEW_STR(name, cmd, env, ref, ops) \ |
1017 | { name, cmd, #env, ref, ops } | |
1ba2ae4b | 1018 | |
95d7ddcd JF |
1019 | #define VIEW_(id, name, ops, ref) \ |
1020 | VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops) | |
1ba2ae4b | 1021 | |
c2124ccd | 1022 | |
b801d8b2 | 1023 | static struct view views[] = { |
95d7ddcd JF |
1024 | VIEW_(MAIN, "main", &main_ops, ref_head), |
1025 | VIEW_(DIFF, "diff", &pager_ops, ref_commit), | |
1026 | VIEW_(LOG, "log", &pager_ops, ref_head), | |
1027 | VIEW_(HELP, "help", &pager_ops, "static"), | |
1028 | VIEW_(PAGER, "pager", &pager_ops, "static"), | |
b801d8b2 JF |
1029 | }; |
1030 | ||
a28bcc22 JF |
1031 | #define VIEW(req) (&views[(req) - REQ_OFFSET - 1]) |
1032 | ||
4c6fabc2 | 1033 | |
fe7233c3 JF |
1034 | static bool |
1035 | draw_view_line(struct view *view, unsigned int lineno) | |
1036 | { | |
1037 | if (view->offset + lineno >= view->lines) | |
1038 | return FALSE; | |
1039 | ||
1040 | return view->ops->draw(view, &view->line[view->offset + lineno], lineno); | |
1041 | } | |
1042 | ||
b801d8b2 | 1043 | static void |
82e78006 | 1044 | redraw_view_from(struct view *view, int lineno) |
b801d8b2 | 1045 | { |
82e78006 | 1046 | assert(0 <= lineno && lineno < view->height); |
b801d8b2 | 1047 | |
82e78006 | 1048 | for (; lineno < view->height; lineno++) { |
fe7233c3 | 1049 | if (!draw_view_line(view, lineno)) |
fd85fef1 | 1050 | break; |
b801d8b2 JF |
1051 | } |
1052 | ||
1053 | redrawwin(view->win); | |
1054 | wrefresh(view->win); | |
1055 | } | |
1056 | ||
b76c2afc | 1057 | static void |
82e78006 JF |
1058 | redraw_view(struct view *view) |
1059 | { | |
1060 | wclear(view->win); | |
1061 | redraw_view_from(view, 0); | |
1062 | } | |
1063 | ||
c2124ccd | 1064 | |
6b161b31 | 1065 | static void |
81030ec8 JF |
1066 | update_view_title(struct view *view) |
1067 | { | |
1068 | if (view == display[current_view]) | |
1069 | wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS)); | |
1070 | else | |
1071 | wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR)); | |
1072 | ||
1073 | werase(view->title); | |
1074 | wmove(view->title, 0, 0); | |
1075 | ||
81030ec8 JF |
1076 | if (*view->ref) |
1077 | wprintw(view->title, "[%s] %s", view->name, view->ref); | |
1078 | else | |
1079 | wprintw(view->title, "[%s]", view->name); | |
1080 | ||
c19f8017 | 1081 | if (view->lines || view->pipe) { |
6d9c07af | 1082 | unsigned int view_lines = view->offset + view->height; |
c19f8017 | 1083 | unsigned int lines = view->lines |
6d9c07af | 1084 | ? MIN(view_lines, view->lines) * 100 / view->lines |
c19f8017 JF |
1085 | : 0; |
1086 | ||
81030ec8 JF |
1087 | wprintw(view->title, " - %s %d of %d (%d%%)", |
1088 | view->ops->type, | |
1089 | view->lineno + 1, | |
1090 | view->lines, | |
c19f8017 | 1091 | lines); |
81030ec8 JF |
1092 | } |
1093 | ||
f97f4012 JF |
1094 | if (view->pipe) { |
1095 | time_t secs = time(NULL) - view->start_time; | |
1096 | ||
1097 | /* Three git seconds are a long time ... */ | |
1098 | if (secs > 2) | |
1099 | wprintw(view->title, " %lds", secs); | |
1100 | } | |
1101 | ||
976447f8 | 1102 | wmove(view->title, 0, view->width - 1); |
81030ec8 JF |
1103 | wrefresh(view->title); |
1104 | } | |
1105 | ||
1106 | static void | |
6b161b31 | 1107 | resize_display(void) |
b76c2afc | 1108 | { |
03a93dbb | 1109 | int offset, i; |
6b161b31 JF |
1110 | struct view *base = display[0]; |
1111 | struct view *view = display[1] ? display[1] : display[0]; | |
b76c2afc | 1112 | |
6b161b31 | 1113 | /* Setup window dimensions */ |
b76c2afc | 1114 | |
03a93dbb | 1115 | getmaxyx(stdscr, base->height, base->width); |
b76c2afc | 1116 | |
6b161b31 | 1117 | /* Make room for the status window. */ |
03a93dbb | 1118 | base->height -= 1; |
6b161b31 JF |
1119 | |
1120 | if (view != base) { | |
03a93dbb JF |
1121 | /* Horizontal split. */ |
1122 | view->width = base->width; | |
6b161b31 JF |
1123 | view->height = SCALE_SPLIT_VIEW(base->height); |
1124 | base->height -= view->height; | |
1125 | ||
1126 | /* Make room for the title bar. */ | |
1127 | view->height -= 1; | |
1128 | } | |
1129 | ||
1130 | /* Make room for the title bar. */ | |
1131 | base->height -= 1; | |
1132 | ||
1133 | offset = 0; | |
1134 | ||
1135 | foreach_view (view, i) { | |
b76c2afc | 1136 | if (!view->win) { |
c19f8017 | 1137 | view->win = newwin(view->height, 0, offset, 0); |
6b161b31 JF |
1138 | if (!view->win) |
1139 | die("Failed to create %s view", view->name); | |
1140 | ||
1141 | scrollok(view->win, TRUE); | |
1142 | ||
1143 | view->title = newwin(1, 0, offset + view->height, 0); | |
1144 | if (!view->title) | |
1145 | die("Failed to create title window"); | |
1146 | ||
1147 | } else { | |
c19f8017 | 1148 | wresize(view->win, view->height, view->width); |
6b161b31 JF |
1149 | mvwin(view->win, offset, 0); |
1150 | mvwin(view->title, offset + view->height, 0); | |
a28bcc22 | 1151 | } |
a28bcc22 | 1152 | |
6b161b31 | 1153 | offset += view->height + 1; |
b76c2afc | 1154 | } |
6b161b31 | 1155 | } |
b76c2afc | 1156 | |
6b161b31 | 1157 | static void |
20bb5e18 JF |
1158 | redraw_display(void) |
1159 | { | |
1160 | struct view *view; | |
1161 | int i; | |
1162 | ||
1163 | foreach_view (view, i) { | |
1164 | redraw_view(view); | |
1165 | update_view_title(view); | |
1166 | } | |
1167 | } | |
1168 | ||
85af6284 JF |
1169 | static void |
1170 | update_display_cursor(void) | |
1171 | { | |
1172 | struct view *view = display[current_view]; | |
1173 | ||
1174 | /* Move the cursor to the right-most column of the cursor line. | |
1175 | * | |
1176 | * XXX: This could turn out to be a bit expensive, but it ensures that | |
1177 | * the cursor does not jump around. */ | |
1178 | if (view->lines) { | |
1179 | wmove(view->win, view->lineno - view->offset, view->width - 1); | |
1180 | wrefresh(view->win); | |
1181 | } | |
1182 | } | |
20bb5e18 | 1183 | |
2e8488b4 JF |
1184 | /* |
1185 | * Navigation | |
1186 | */ | |
1187 | ||
4a2909a7 | 1188 | /* Scrolling backend */ |
b801d8b2 | 1189 | static void |
b3a54cba | 1190 | do_scroll_view(struct view *view, int lines, bool redraw) |
b801d8b2 | 1191 | { |
fd85fef1 JF |
1192 | /* The rendering expects the new offset. */ |
1193 | view->offset += lines; | |
1194 | ||
1195 | assert(0 <= view->offset && view->offset < view->lines); | |
1196 | assert(lines); | |
b801d8b2 | 1197 | |
82e78006 | 1198 | /* Redraw the whole screen if scrolling is pointless. */ |
4c6fabc2 | 1199 | if (view->height < ABS(lines)) { |
b76c2afc JF |
1200 | redraw_view(view); |
1201 | ||
1202 | } else { | |
22f66b0a | 1203 | int line = lines > 0 ? view->height - lines : 0; |
82e78006 | 1204 | int end = line + ABS(lines); |
fd85fef1 JF |
1205 | |
1206 | wscrl(view->win, lines); | |
1207 | ||
22f66b0a | 1208 | for (; line < end; line++) { |
fe7233c3 | 1209 | if (!draw_view_line(view, line)) |
fd85fef1 JF |
1210 | break; |
1211 | } | |
1212 | } | |
1213 | ||
1214 | /* Move current line into the view. */ | |
1215 | if (view->lineno < view->offset) { | |
1216 | view->lineno = view->offset; | |
fe7233c3 | 1217 | draw_view_line(view, 0); |
fd85fef1 JF |
1218 | |
1219 | } else if (view->lineno >= view->offset + view->height) { | |
6706b2ba JF |
1220 | if (view->lineno == view->offset + view->height) { |
1221 | /* Clear the hidden line so it doesn't show if the view | |
1222 | * is scrolled up. */ | |
1223 | wmove(view->win, view->height, 0); | |
1224 | wclrtoeol(view->win); | |
1225 | } | |
fd85fef1 | 1226 | view->lineno = view->offset + view->height - 1; |
fe7233c3 | 1227 | draw_view_line(view, view->lineno - view->offset); |
fd85fef1 JF |
1228 | } |
1229 | ||
4c6fabc2 | 1230 | assert(view->offset <= view->lineno && view->lineno < view->lines); |
fd85fef1 | 1231 | |
b3a54cba JF |
1232 | if (!redraw) |
1233 | return; | |
1234 | ||
fd85fef1 JF |
1235 | redrawwin(view->win); |
1236 | wrefresh(view->win); | |
9d3f5834 | 1237 | report(""); |
fd85fef1 | 1238 | } |
78c70acd | 1239 | |
4a2909a7 | 1240 | /* Scroll frontend */ |
fd85fef1 | 1241 | static void |
6b161b31 | 1242 | scroll_view(struct view *view, enum request request) |
fd85fef1 JF |
1243 | { |
1244 | int lines = 1; | |
b801d8b2 JF |
1245 | |
1246 | switch (request) { | |
4a2909a7 | 1247 | case REQ_SCROLL_PAGE_DOWN: |
fd85fef1 | 1248 | lines = view->height; |
4a2909a7 | 1249 | case REQ_SCROLL_LINE_DOWN: |
b801d8b2 | 1250 | if (view->offset + lines > view->lines) |
bde3653a | 1251 | lines = view->lines - view->offset; |
b801d8b2 | 1252 | |
fd85fef1 | 1253 | if (lines == 0 || view->offset + view->height >= view->lines) { |
eb98559e | 1254 | report("Cannot scroll beyond the last line"); |
b801d8b2 JF |
1255 | return; |
1256 | } | |
1257 | break; | |
1258 | ||
4a2909a7 | 1259 | case REQ_SCROLL_PAGE_UP: |
fd85fef1 | 1260 | lines = view->height; |
4a2909a7 | 1261 | case REQ_SCROLL_LINE_UP: |
b801d8b2 JF |
1262 | if (lines > view->offset) |
1263 | lines = view->offset; | |
1264 | ||
1265 | if (lines == 0) { | |
eb98559e | 1266 | report("Cannot scroll beyond the first line"); |
b801d8b2 JF |
1267 | return; |
1268 | } | |
1269 | ||
fd85fef1 | 1270 | lines = -lines; |
b801d8b2 | 1271 | break; |
03a93dbb | 1272 | |
6b161b31 JF |
1273 | default: |
1274 | die("request %d not handled in switch", request); | |
b801d8b2 JF |
1275 | } |
1276 | ||
b3a54cba | 1277 | do_scroll_view(view, lines, TRUE); |
fd85fef1 | 1278 | } |
b801d8b2 | 1279 | |
4a2909a7 | 1280 | /* Cursor moving */ |
fd85fef1 | 1281 | static void |
b3a54cba | 1282 | move_view(struct view *view, enum request request, bool redraw) |
fd85fef1 JF |
1283 | { |
1284 | int steps; | |
b801d8b2 | 1285 | |
fd85fef1 | 1286 | switch (request) { |
4a2909a7 | 1287 | case REQ_MOVE_FIRST_LINE: |
78c70acd JF |
1288 | steps = -view->lineno; |
1289 | break; | |
1290 | ||
4a2909a7 | 1291 | case REQ_MOVE_LAST_LINE: |
78c70acd JF |
1292 | steps = view->lines - view->lineno - 1; |
1293 | break; | |
1294 | ||
4a2909a7 | 1295 | case REQ_MOVE_PAGE_UP: |
78c70acd JF |
1296 | steps = view->height > view->lineno |
1297 | ? -view->lineno : -view->height; | |
1298 | break; | |
1299 | ||
4a2909a7 | 1300 | case REQ_MOVE_PAGE_DOWN: |
78c70acd JF |
1301 | steps = view->lineno + view->height >= view->lines |
1302 | ? view->lines - view->lineno - 1 : view->height; | |
1303 | break; | |
1304 | ||
4a2909a7 | 1305 | case REQ_MOVE_UP: |
fd85fef1 JF |
1306 | steps = -1; |
1307 | break; | |
b801d8b2 | 1308 | |
4a2909a7 | 1309 | case REQ_MOVE_DOWN: |
fd85fef1 JF |
1310 | steps = 1; |
1311 | break; | |
6b161b31 JF |
1312 | |
1313 | default: | |
1314 | die("request %d not handled in switch", request); | |
78c70acd | 1315 | } |
b801d8b2 | 1316 | |
4c6fabc2 | 1317 | if (steps <= 0 && view->lineno == 0) { |
eb98559e | 1318 | report("Cannot move beyond the first line"); |
78c70acd | 1319 | return; |
b801d8b2 | 1320 | |
6908bdbd | 1321 | } else if (steps >= 0 && view->lineno + 1 >= view->lines) { |
eb98559e | 1322 | report("Cannot move beyond the last line"); |
78c70acd | 1323 | return; |
fd85fef1 JF |
1324 | } |
1325 | ||
4c6fabc2 | 1326 | /* Move the current line */ |
fd85fef1 | 1327 | view->lineno += steps; |
4c6fabc2 JF |
1328 | assert(0 <= view->lineno && view->lineno < view->lines); |
1329 | ||
1330 | /* Repaint the old "current" line if we be scrolling */ | |
2e8488b4 JF |
1331 | if (ABS(steps) < view->height) { |
1332 | int prev_lineno = view->lineno - steps - view->offset; | |
1333 | ||
1334 | wmove(view->win, prev_lineno, 0); | |
1335 | wclrtoeol(view->win); | |
fe7233c3 | 1336 | draw_view_line(view, prev_lineno); |
2e8488b4 | 1337 | } |
fd85fef1 | 1338 | |
4c6fabc2 | 1339 | /* Check whether the view needs to be scrolled */ |
fd85fef1 JF |
1340 | if (view->lineno < view->offset || |
1341 | view->lineno >= view->offset + view->height) { | |
1342 | if (steps < 0 && -steps > view->offset) { | |
1343 | steps = -view->offset; | |
b76c2afc JF |
1344 | |
1345 | } else if (steps > 0) { | |
1346 | if (view->lineno == view->lines - 1 && | |
1347 | view->lines > view->height) { | |
1348 | steps = view->lines - view->offset - 1; | |
1349 | if (steps >= view->height) | |
1350 | steps -= view->height - 1; | |
1351 | } | |
b801d8b2 | 1352 | } |
78c70acd | 1353 | |
b3a54cba | 1354 | do_scroll_view(view, steps, redraw); |
fd85fef1 | 1355 | return; |
b801d8b2 JF |
1356 | } |
1357 | ||
4c6fabc2 | 1358 | /* Draw the current line */ |
fe7233c3 | 1359 | draw_view_line(view, view->lineno - view->offset); |
fd85fef1 | 1360 | |
b3a54cba JF |
1361 | if (!redraw) |
1362 | return; | |
1363 | ||
b801d8b2 JF |
1364 | redrawwin(view->win); |
1365 | wrefresh(view->win); | |
9d3f5834 | 1366 | report(""); |
b801d8b2 JF |
1367 | } |
1368 | ||
b801d8b2 | 1369 | |
2e8488b4 JF |
1370 | /* |
1371 | * Incremental updating | |
1372 | */ | |
b801d8b2 | 1373 | |
199d1288 JF |
1374 | static void |
1375 | end_update(struct view *view) | |
1376 | { | |
1377 | if (!view->pipe) | |
1378 | return; | |
1379 | set_nonblocking_input(FALSE); | |
1380 | if (view->pipe == stdin) | |
1381 | fclose(view->pipe); | |
1382 | else | |
1383 | pclose(view->pipe); | |
1384 | view->pipe = NULL; | |
1385 | } | |
1386 | ||
03a93dbb | 1387 | static bool |
b801d8b2 JF |
1388 | begin_update(struct view *view) |
1389 | { | |
4685845e | 1390 | const char *id = view->id; |
fd85fef1 | 1391 | |
199d1288 JF |
1392 | if (view->pipe) |
1393 | end_update(view); | |
1394 | ||
03a93dbb JF |
1395 | if (opt_cmd[0]) { |
1396 | string_copy(view->cmd, opt_cmd); | |
1397 | opt_cmd[0] = 0; | |
8855ada4 JF |
1398 | /* When running random commands, the view ref could have become |
1399 | * invalid so clear it. */ | |
1400 | view->ref[0] = 0; | |
03a93dbb | 1401 | } else { |
4685845e | 1402 | const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt; |
1ba2ae4b | 1403 | |
cc2d1364 | 1404 | if (!string_format(view->cmd, format, id, id, id, id, id)) |
03a93dbb JF |
1405 | return FALSE; |
1406 | } | |
b801d8b2 | 1407 | |
6908bdbd JF |
1408 | /* Special case for the pager view. */ |
1409 | if (opt_pipe) { | |
1410 | view->pipe = opt_pipe; | |
1411 | opt_pipe = NULL; | |
1412 | } else { | |
1413 | view->pipe = popen(view->cmd, "r"); | |
1414 | } | |
1415 | ||
2e8488b4 JF |
1416 | if (!view->pipe) |
1417 | return FALSE; | |
b801d8b2 | 1418 | |
6b161b31 | 1419 | set_nonblocking_input(TRUE); |
b801d8b2 JF |
1420 | |
1421 | view->offset = 0; | |
1422 | view->lines = 0; | |
1423 | view->lineno = 0; | |
49f2b43f | 1424 | string_copy(view->vid, id); |
b801d8b2 | 1425 | |
2e8488b4 JF |
1426 | if (view->line) { |
1427 | int i; | |
1428 | ||
1429 | for (i = 0; i < view->lines; i++) | |
fe7233c3 JF |
1430 | if (view->line[i].data) |
1431 | free(view->line[i].data); | |
2e8488b4 JF |
1432 | |
1433 | free(view->line); | |
1434 | view->line = NULL; | |
1435 | } | |
1436 | ||
1437 | view->start_time = time(NULL); | |
1438 | ||
b801d8b2 JF |
1439 | return TRUE; |
1440 | } | |
1441 | ||
e2c01617 JF |
1442 | static struct line * |
1443 | realloc_lines(struct view *view, size_t line_size) | |
1444 | { | |
1445 | struct line *tmp = realloc(view->line, sizeof(*view->line) * line_size); | |
1446 | ||
1447 | if (!tmp) | |
1448 | return NULL; | |
1449 | ||
1450 | view->line = tmp; | |
1451 | view->line_size = line_size; | |
1452 | return view->line; | |
1453 | } | |
1454 | ||
03a93dbb | 1455 | static bool |
b801d8b2 JF |
1456 | update_view(struct view *view) |
1457 | { | |
1458 | char buffer[BUFSIZ]; | |
1459 | char *line; | |
82e78006 JF |
1460 | /* The number of lines to read. If too low it will cause too much |
1461 | * redrawing (and possible flickering), if too high responsiveness | |
1462 | * will suffer. */ | |
8855ada4 | 1463 | unsigned long lines = view->height; |
82e78006 | 1464 | int redraw_from = -1; |
b801d8b2 JF |
1465 | |
1466 | if (!view->pipe) | |
1467 | return TRUE; | |
1468 | ||
82e78006 JF |
1469 | /* Only redraw if lines are visible. */ |
1470 | if (view->offset + view->height >= view->lines) | |
1471 | redraw_from = view->lines - view->offset; | |
b801d8b2 | 1472 | |
e2c01617 | 1473 | if (!realloc_lines(view, view->lines + lines)) |
b801d8b2 JF |
1474 | goto alloc_error; |
1475 | ||
b801d8b2 | 1476 | while ((line = fgets(buffer, sizeof(buffer), view->pipe))) { |
c34d9c9f | 1477 | int linelen = strlen(line); |
b801d8b2 | 1478 | |
b801d8b2 JF |
1479 | if (linelen) |
1480 | line[linelen - 1] = 0; | |
1481 | ||
701e4f5d | 1482 | if (!view->ops->read(view, line)) |
b801d8b2 | 1483 | goto alloc_error; |
fd85fef1 JF |
1484 | |
1485 | if (lines-- == 1) | |
1486 | break; | |
b801d8b2 JF |
1487 | } |
1488 | ||
8855ada4 JF |
1489 | { |
1490 | int digits; | |
1491 | ||
1492 | lines = view->lines; | |
1493 | for (digits = 0; lines; digits++) | |
1494 | lines /= 10; | |
1495 | ||
1496 | /* Keep the displayed view in sync with line number scaling. */ | |
1497 | if (digits != view->digits) { | |
1498 | view->digits = digits; | |
1499 | redraw_from = 0; | |
1500 | } | |
1501 | } | |
1502 | ||
82e78006 JF |
1503 | if (redraw_from >= 0) { |
1504 | /* If this is an incremental update, redraw the previous line | |
a28bcc22 JF |
1505 | * since for commits some members could have changed when |
1506 | * loading the main view. */ | |
82e78006 JF |
1507 | if (redraw_from > 0) |
1508 | redraw_from--; | |
1509 | ||
1510 | /* Incrementally draw avoids flickering. */ | |
1511 | redraw_view_from(view, redraw_from); | |
4c6fabc2 | 1512 | } |
b801d8b2 | 1513 | |
eb98559e JF |
1514 | /* Update the title _after_ the redraw so that if the redraw picks up a |
1515 | * commit reference in view->ref it'll be available here. */ | |
1516 | update_view_title(view); | |
1517 | ||
b801d8b2 | 1518 | if (ferror(view->pipe)) { |
03a93dbb | 1519 | report("Failed to read: %s", strerror(errno)); |
b801d8b2 JF |
1520 | goto end; |
1521 | ||
1522 | } else if (feof(view->pipe)) { | |
f97f4012 | 1523 | report(""); |
b801d8b2 JF |
1524 | goto end; |
1525 | } | |
1526 | ||
1527 | return TRUE; | |
1528 | ||
1529 | alloc_error: | |
2e8488b4 | 1530 | report("Allocation failure"); |
b801d8b2 JF |
1531 | |
1532 | end: | |
1533 | end_update(view); | |
1534 | return FALSE; | |
1535 | } | |
1536 | ||
79d445ca JF |
1537 | |
1538 | static void open_help_view(struct view *view) | |
1539 | { | |
1540 | char buf[BUFSIZ]; | |
1541 | int lines = ARRAY_SIZE(req_info) + 2; | |
1542 | int i; | |
1543 | ||
1544 | if (view->lines > 0) | |
1545 | return; | |
1546 | ||
1547 | for (i = 0; i < ARRAY_SIZE(req_info); i++) | |
1548 | if (!req_info[i].request) | |
1549 | lines++; | |
1550 | ||
1551 | view->line = calloc(lines, sizeof(*view->line)); | |
1552 | if (!view->line) { | |
1553 | report("Allocation failure"); | |
1554 | return; | |
1555 | } | |
1556 | ||
1557 | view->ops->read(view, "Quick reference for tig keybindings:"); | |
1558 | ||
1559 | for (i = 0; i < ARRAY_SIZE(req_info); i++) { | |
1560 | char *key; | |
1561 | ||
1562 | if (!req_info[i].request) { | |
1563 | view->ops->read(view, ""); | |
1564 | view->ops->read(view, req_info[i].help); | |
1565 | continue; | |
1566 | } | |
1567 | ||
1568 | key = get_key(req_info[i].request); | |
1569 | if (!string_format(buf, "%-25s %s", key, req_info[i].help)) | |
1570 | continue; | |
1571 | ||
1572 | view->ops->read(view, buf); | |
1573 | } | |
1574 | } | |
1575 | ||
1576 | ||
49f2b43f JF |
1577 | enum open_flags { |
1578 | OPEN_DEFAULT = 0, /* Use default view switching. */ | |
1579 | OPEN_SPLIT = 1, /* Split current view. */ | |
1580 | OPEN_BACKGROUNDED = 2, /* Backgrounded. */ | |
1581 | OPEN_RELOAD = 4, /* Reload view even if it is the current. */ | |
1582 | }; | |
1583 | ||
6b161b31 | 1584 | static void |
49f2b43f | 1585 | open_view(struct view *prev, enum request request, enum open_flags flags) |
b801d8b2 | 1586 | { |
49f2b43f JF |
1587 | bool backgrounded = !!(flags & OPEN_BACKGROUNDED); |
1588 | bool split = !!(flags & OPEN_SPLIT); | |
1589 | bool reload = !!(flags & OPEN_RELOAD); | |
a28bcc22 | 1590 | struct view *view = VIEW(request); |
9f41488f | 1591 | int nviews = displayed_views(); |
6e950a52 | 1592 | struct view *base_view = display[0]; |
b801d8b2 | 1593 | |
49f2b43f | 1594 | if (view == prev && nviews == 1 && !reload) { |
6b161b31 JF |
1595 | report("Already in %s view", view->name); |
1596 | return; | |
1597 | } | |
b801d8b2 | 1598 | |
2509b112 | 1599 | if (view == VIEW(REQ_VIEW_HELP)) { |
79d445ca | 1600 | open_help_view(view); |
2509b112 JF |
1601 | |
1602 | } else if ((reload || strcmp(view->vid, view->id)) && | |
1603 | !begin_update(view)) { | |
6b161b31 JF |
1604 | report("Failed to load %s view", view->name); |
1605 | return; | |
1606 | } | |
a28bcc22 | 1607 | |
6b161b31 | 1608 | if (split) { |
8d741c06 | 1609 | display[1] = view; |
6b161b31 | 1610 | if (!backgrounded) |
8d741c06 | 1611 | current_view = 1; |
6b161b31 JF |
1612 | } else { |
1613 | /* Maximize the current view. */ | |
1614 | memset(display, 0, sizeof(display)); | |
1615 | current_view = 0; | |
1616 | display[current_view] = view; | |
a28bcc22 | 1617 | } |
b801d8b2 | 1618 | |
6e950a52 JF |
1619 | /* Resize the view when switching between split- and full-screen, |
1620 | * or when switching between two different full-screen views. */ | |
1621 | if (nviews != displayed_views() || | |
1622 | (nviews == 1 && base_view != display[0])) | |
a006db63 | 1623 | resize_display(); |
b801d8b2 | 1624 | |
a8891802 | 1625 | if (split && prev->lineno - prev->offset >= prev->height) { |
03a93dbb | 1626 | /* Take the title line into account. */ |
eb98559e | 1627 | int lines = prev->lineno - prev->offset - prev->height + 1; |
03a93dbb JF |
1628 | |
1629 | /* Scroll the view that was split if the current line is | |
1630 | * outside the new limited view. */ | |
b3a54cba | 1631 | do_scroll_view(prev, lines, TRUE); |
03a93dbb JF |
1632 | } |
1633 | ||
6b161b31 | 1634 | if (prev && view != prev) { |
9b995f0c | 1635 | if (split && !backgrounded) { |
f0b3ab80 JF |
1636 | /* "Blur" the previous view. */ |
1637 | update_view_title(prev); | |
9f396969 | 1638 | } |
f0b3ab80 | 1639 | |
f6da0b66 | 1640 | view->parent = prev; |
b801d8b2 JF |
1641 | } |
1642 | ||
9f396969 | 1643 | if (view->pipe && view->lines == 0) { |
03a93dbb JF |
1644 | /* Clear the old view and let the incremental updating refill |
1645 | * the screen. */ | |
1646 | wclear(view->win); | |
f97f4012 | 1647 | report(""); |
03a93dbb JF |
1648 | } else { |
1649 | redraw_view(view); | |
24b5b3e0 | 1650 | report(""); |
03a93dbb | 1651 | } |
6706b2ba JF |
1652 | |
1653 | /* If the view is backgrounded the above calls to report() | |
1654 | * won't redraw the view title. */ | |
1655 | if (backgrounded) | |
1656 | update_view_title(view); | |
b801d8b2 JF |
1657 | } |
1658 | ||
1659 | ||
6b161b31 JF |
1660 | /* |
1661 | * User request switch noodle | |
1662 | */ | |
1663 | ||
b801d8b2 | 1664 | static int |
6b161b31 | 1665 | view_driver(struct view *view, enum request request) |
b801d8b2 | 1666 | { |
b801d8b2 JF |
1667 | int i; |
1668 | ||
1669 | switch (request) { | |
4a2909a7 JF |
1670 | case REQ_MOVE_UP: |
1671 | case REQ_MOVE_DOWN: | |
1672 | case REQ_MOVE_PAGE_UP: | |
1673 | case REQ_MOVE_PAGE_DOWN: | |
1674 | case REQ_MOVE_FIRST_LINE: | |
1675 | case REQ_MOVE_LAST_LINE: | |
b3a54cba | 1676 | move_view(view, request, TRUE); |
fd85fef1 JF |
1677 | break; |
1678 | ||
4a2909a7 JF |
1679 | case REQ_SCROLL_LINE_DOWN: |
1680 | case REQ_SCROLL_LINE_UP: | |
1681 | case REQ_SCROLL_PAGE_DOWN: | |
1682 | case REQ_SCROLL_PAGE_UP: | |
a28bcc22 | 1683 | scroll_view(view, request); |
b801d8b2 JF |
1684 | break; |
1685 | ||
4a2909a7 | 1686 | case REQ_VIEW_MAIN: |
4a2909a7 | 1687 | case REQ_VIEW_DIFF: |
2e8488b4 JF |
1688 | case REQ_VIEW_LOG: |
1689 | case REQ_VIEW_HELP: | |
6908bdbd | 1690 | case REQ_VIEW_PAGER: |
49f2b43f | 1691 | open_view(view, request, OPEN_DEFAULT); |
b801d8b2 JF |
1692 | break; |
1693 | ||
b3a54cba JF |
1694 | case REQ_NEXT: |
1695 | case REQ_PREVIOUS: | |
1696 | request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP; | |
1697 | ||
1698 | if (view == VIEW(REQ_VIEW_DIFF) && | |
1699 | view->parent == VIEW(REQ_VIEW_MAIN)) { | |
f0b3ab80 | 1700 | bool redraw = display[1] == view; |
b3a54cba JF |
1701 | |
1702 | view = view->parent; | |
1703 | move_view(view, request, redraw); | |
f0b3ab80 JF |
1704 | if (redraw) |
1705 | update_view_title(view); | |
b3a54cba JF |
1706 | } else { |
1707 | move_view(view, request, TRUE); | |
1708 | break; | |
1709 | } | |
6706b2ba JF |
1710 | /* Fall-through */ |
1711 | ||
6b161b31 | 1712 | case REQ_ENTER: |
6908bdbd JF |
1713 | if (!view->lines) { |
1714 | report("Nothing to enter"); | |
1715 | break; | |
1716 | } | |
fe7233c3 | 1717 | return view->ops->enter(view, &view->line[view->lineno]); |
6b161b31 | 1718 | |
03a93dbb JF |
1719 | case REQ_VIEW_NEXT: |
1720 | { | |
9f41488f | 1721 | int nviews = displayed_views(); |
03a93dbb JF |
1722 | int next_view = (current_view + 1) % nviews; |
1723 | ||
1724 | if (next_view == current_view) { | |
1725 | report("Only one view is displayed"); | |
1726 | break; | |
1727 | } | |
1728 | ||
1729 | current_view = next_view; | |
1730 | /* Blur out the title of the previous view. */ | |
1731 | update_view_title(view); | |
6734f6b9 | 1732 | report(""); |
03a93dbb JF |
1733 | break; |
1734 | } | |
24b5b3e0 | 1735 | case REQ_TOGGLE_LINENO: |
b76c2afc | 1736 | opt_line_number = !opt_line_number; |
20bb5e18 | 1737 | redraw_display(); |
b801d8b2 JF |
1738 | break; |
1739 | ||
54efb62b JF |
1740 | case REQ_TOGGLE_REV_GRAPH: |
1741 | opt_rev_graph = !opt_rev_graph; | |
1742 | redraw_display(); | |
1743 | break; | |
1744 | ||
03a93dbb | 1745 | case REQ_PROMPT: |
8855ada4 | 1746 | /* Always reload^Wrerun commands from the prompt. */ |
49f2b43f | 1747 | open_view(view, opt_request, OPEN_RELOAD); |
03a93dbb JF |
1748 | break; |
1749 | ||
4a2909a7 | 1750 | case REQ_STOP_LOADING: |
59a45d3a JF |
1751 | for (i = 0; i < ARRAY_SIZE(views); i++) { |
1752 | view = &views[i]; | |
2e8488b4 | 1753 | if (view->pipe) |
6a7bb912 | 1754 | report("Stopped loading the %s view", view->name), |
03a93dbb JF |
1755 | end_update(view); |
1756 | } | |
b801d8b2 JF |
1757 | break; |
1758 | ||
4a2909a7 | 1759 | case REQ_SHOW_VERSION: |
6cb291b7 | 1760 | report("%s (built %s)", VERSION, __DATE__); |
b801d8b2 JF |
1761 | return TRUE; |
1762 | ||
fac7db6c JF |
1763 | case REQ_SCREEN_RESIZE: |
1764 | resize_display(); | |
1765 | /* Fall-through */ | |
4a2909a7 | 1766 | case REQ_SCREEN_REDRAW: |
20bb5e18 | 1767 | redraw_display(); |
4a2909a7 JF |
1768 | break; |
1769 | ||
1770 | case REQ_SCREEN_UPDATE: | |
b801d8b2 JF |
1771 | doupdate(); |
1772 | return TRUE; | |
1773 | ||
4f9b667a | 1774 | case REQ_VIEW_CLOSE: |
2fcf5401 JF |
1775 | /* XXX: Mark closed views by letting view->parent point to the |
1776 | * view itself. Parents to closed view should never be | |
1777 | * followed. */ | |
1778 | if (view->parent && | |
1779 | view->parent->parent != view->parent) { | |
4f9b667a JF |
1780 | memset(display, 0, sizeof(display)); |
1781 | current_view = 0; | |
f6da0b66 | 1782 | display[current_view] = view->parent; |
2fcf5401 | 1783 | view->parent = view; |
4f9b667a JF |
1784 | resize_display(); |
1785 | redraw_display(); | |
1786 | break; | |
1787 | } | |
1788 | /* Fall-through */ | |
b801d8b2 JF |
1789 | case REQ_QUIT: |
1790 | return FALSE; | |
1791 | ||
1792 | default: | |
2e8488b4 | 1793 | /* An unknown key will show most commonly used commands. */ |
468876c9 | 1794 | report("Unknown key, press 'h' for help"); |
b801d8b2 JF |
1795 | return TRUE; |
1796 | } | |
1797 | ||
1798 | return TRUE; | |
1799 | } | |
1800 | ||
1801 | ||
1802 | /* | |
ff26aa29 | 1803 | * Pager backend |
b801d8b2 JF |
1804 | */ |
1805 | ||
6b161b31 | 1806 | static bool |
fe7233c3 | 1807 | pager_draw(struct view *view, struct line *line, unsigned int lineno) |
b801d8b2 | 1808 | { |
fe7233c3 JF |
1809 | char *text = line->data; |
1810 | enum line_type type = line->type; | |
1811 | int textlen = strlen(text); | |
78c70acd | 1812 | int attr; |
b801d8b2 | 1813 | |
6706b2ba JF |
1814 | wmove(view->win, lineno, 0); |
1815 | ||
fd85fef1 | 1816 | if (view->offset + lineno == view->lineno) { |
8855ada4 | 1817 | if (type == LINE_COMMIT) { |
fe7233c3 | 1818 | string_copy(view->ref, text + 7); |
03a93dbb JF |
1819 | string_copy(ref_commit, view->ref); |
1820 | } | |
8855ada4 | 1821 | |
78c70acd | 1822 | type = LINE_CURSOR; |
6706b2ba | 1823 | wchgat(view->win, -1, 0, type, NULL); |
fd85fef1 JF |
1824 | } |
1825 | ||
78c70acd | 1826 | attr = get_line_attr(type); |
b801d8b2 | 1827 | wattrset(view->win, attr); |
b76c2afc | 1828 | |
6706b2ba JF |
1829 | if (opt_line_number || opt_tab_size < TABSIZE) { |
1830 | static char spaces[] = " "; | |
1831 | int col_offset = 0, col = 0; | |
1832 | ||
1833 | if (opt_line_number) { | |
1834 | unsigned long real_lineno = view->offset + lineno + 1; | |
82e78006 | 1835 | |
6706b2ba JF |
1836 | if (real_lineno == 1 || |
1837 | (real_lineno % opt_num_interval) == 0) { | |
1838 | wprintw(view->win, "%.*d", view->digits, real_lineno); | |
8855ada4 | 1839 | |
6706b2ba JF |
1840 | } else { |
1841 | waddnstr(view->win, spaces, | |
1842 | MIN(view->digits, STRING_SIZE(spaces))); | |
1843 | } | |
1844 | waddstr(view->win, ": "); | |
1845 | col_offset = view->digits + 2; | |
1846 | } | |
8855ada4 | 1847 | |
fe7233c3 | 1848 | while (text && col_offset + col < view->width) { |
6706b2ba | 1849 | int cols_max = view->width - col_offset - col; |
fe7233c3 | 1850 | char *pos = text; |
6706b2ba | 1851 | int cols; |
4c6fabc2 | 1852 | |
fe7233c3 JF |
1853 | if (*text == '\t') { |
1854 | text++; | |
6706b2ba | 1855 | assert(sizeof(spaces) > TABSIZE); |
fe7233c3 | 1856 | pos = spaces; |
6706b2ba | 1857 | cols = opt_tab_size - (col % opt_tab_size); |
82e78006 | 1858 | |
b76c2afc | 1859 | } else { |
fe7233c3 JF |
1860 | text = strchr(text, '\t'); |
1861 | cols = line ? text - pos : strlen(pos); | |
b76c2afc | 1862 | } |
6706b2ba | 1863 | |
fe7233c3 | 1864 | waddnstr(view->win, pos, MIN(cols, cols_max)); |
6706b2ba | 1865 | col += cols; |
b76c2afc | 1866 | } |
b76c2afc JF |
1867 | |
1868 | } else { | |
6706b2ba | 1869 | int col = 0, pos = 0; |
b801d8b2 | 1870 | |
fe7233c3 JF |
1871 | for (; pos < textlen && col < view->width; pos++, col++) |
1872 | if (text[pos] == '\t') | |
6706b2ba JF |
1873 | col += TABSIZE - (col % TABSIZE) - 1; |
1874 | ||
fe7233c3 | 1875 | waddnstr(view->win, text, pos); |
6706b2ba | 1876 | } |
2e8488b4 | 1877 | |
b801d8b2 JF |
1878 | return TRUE; |
1879 | } | |
1880 | ||
7b99a34c JF |
1881 | static void |
1882 | add_pager_refs(struct view *view, struct line *line) | |
1883 | { | |
1884 | char buf[1024]; | |
1885 | char *data = line->data; | |
1886 | struct ref **refs; | |
1887 | int bufpos = 0, refpos = 0; | |
1888 | const char *sep = "Refs: "; | |
1889 | ||
1890 | assert(line->type == LINE_COMMIT); | |
1891 | ||
1892 | refs = get_refs(data + STRING_SIZE("commit ")); | |
1893 | if (!refs) | |
1894 | return; | |
1895 | ||
1896 | do { | |
cc2d1364 JF |
1897 | struct ref *ref = refs[refpos]; |
1898 | char *fmt = ref->tag ? "%s[%s]" : "%s%s"; | |
7b99a34c | 1899 | |
cc2d1364 JF |
1900 | if (!string_format_from(buf, &bufpos, fmt, sep, ref->name)) |
1901 | return; | |
7b99a34c JF |
1902 | sep = ", "; |
1903 | } while (refs[refpos++]->next); | |
1904 | ||
cc2d1364 | 1905 | if (!realloc_lines(view, view->line_size + 1)) |
7b99a34c JF |
1906 | return; |
1907 | ||
1908 | line = &view->line[view->lines]; | |
1909 | line->data = strdup(buf); | |
1910 | if (!line->data) | |
1911 | return; | |
1912 | ||
1913 | line->type = LINE_PP_REFS; | |
1914 | view->lines++; | |
1915 | } | |
1916 | ||
6b161b31 | 1917 | static bool |
701e4f5d | 1918 | pager_read(struct view *view, char *data) |
22f66b0a | 1919 | { |
7b99a34c | 1920 | struct line *line = &view->line[view->lines]; |
22f66b0a | 1921 | |
7b99a34c JF |
1922 | line->data = strdup(data); |
1923 | if (!line->data) | |
1924 | return FALSE; | |
fe7233c3 | 1925 | |
7b99a34c | 1926 | line->type = get_line_type(line->data); |
22f66b0a | 1927 | view->lines++; |
7b99a34c JF |
1928 | |
1929 | if (line->type == LINE_COMMIT && | |
1930 | (view == VIEW(REQ_VIEW_DIFF) || | |
1931 | view == VIEW(REQ_VIEW_LOG))) | |
1932 | add_pager_refs(view, line); | |
1933 | ||
22f66b0a JF |
1934 | return TRUE; |
1935 | } | |
1936 | ||
6b161b31 | 1937 | static bool |
fe7233c3 | 1938 | pager_enter(struct view *view, struct line *line) |
6b161b31 | 1939 | { |
91e8e277 | 1940 | int split = 0; |
6b161b31 | 1941 | |
9fbbd28f JF |
1942 | if (line->type == LINE_COMMIT && |
1943 | (view == VIEW(REQ_VIEW_LOG) || | |
1944 | view == VIEW(REQ_VIEW_PAGER))) { | |
91e8e277 JF |
1945 | open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT); |
1946 | split = 1; | |
67e48ac5 JF |
1947 | } |
1948 | ||
91e8e277 JF |
1949 | /* Always scroll the view even if it was split. That way |
1950 | * you can use Enter to scroll through the log view and | |
1951 | * split open each commit diff. */ | |
1952 | scroll_view(view, REQ_SCROLL_LINE_DOWN); | |
1953 | ||
1954 | /* FIXME: A minor workaround. Scrolling the view will call report("") | |
9d82d824 JF |
1955 | * but if we are scrolling a non-current view this won't properly |
1956 | * update the view title. */ | |
91e8e277 JF |
1957 | if (split) |
1958 | update_view_title(view); | |
6b161b31 JF |
1959 | |
1960 | return TRUE; | |
1961 | } | |
1962 | ||
6b161b31 | 1963 | static struct view_ops pager_ops = { |
6734f6b9 | 1964 | "line", |
6b161b31 JF |
1965 | pager_draw, |
1966 | pager_read, | |
1967 | pager_enter, | |
1968 | }; | |
1969 | ||
80ce96ea | 1970 | |
ff26aa29 JF |
1971 | /* |
1972 | * Main view backend | |
1973 | */ | |
1974 | ||
1975 | struct commit { | |
54efb62b JF |
1976 | char id[41]; /* SHA1 ID. */ |
1977 | char title[75]; /* First line of the commit message. */ | |
1978 | char author[75]; /* Author of the commit. */ | |
1979 | struct tm time; /* Date from the author ident. */ | |
1980 | struct ref **refs; /* Repository references. */ | |
1981 | chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */ | |
1982 | size_t graph_size; /* The width of the graph array. */ | |
ff26aa29 | 1983 | }; |
c34d9c9f | 1984 | |
6b161b31 | 1985 | static bool |
fe7233c3 | 1986 | main_draw(struct view *view, struct line *line, unsigned int lineno) |
22f66b0a | 1987 | { |
2e8488b4 | 1988 | char buf[DATE_COLS + 1]; |
fe7233c3 | 1989 | struct commit *commit = line->data; |
78c70acd | 1990 | enum line_type type; |
6706b2ba | 1991 | int col = 0; |
b76c2afc | 1992 | size_t timelen; |
10e290ee | 1993 | size_t authorlen; |
9989bf60 | 1994 | int trimmed = 1; |
22f66b0a | 1995 | |
4c6fabc2 JF |
1996 | if (!*commit->author) |
1997 | return FALSE; | |
22f66b0a | 1998 | |
6706b2ba JF |
1999 | wmove(view->win, lineno, col); |
2000 | ||
22f66b0a | 2001 | if (view->offset + lineno == view->lineno) { |
03a93dbb | 2002 | string_copy(view->ref, commit->id); |
49f2b43f | 2003 | string_copy(ref_commit, view->ref); |
78c70acd | 2004 | type = LINE_CURSOR; |
6706b2ba JF |
2005 | wattrset(view->win, get_line_attr(type)); |
2006 | wchgat(view->win, -1, 0, type, NULL); | |
2007 | ||
78c70acd | 2008 | } else { |
b76c2afc | 2009 | type = LINE_MAIN_COMMIT; |
6706b2ba | 2010 | wattrset(view->win, get_line_attr(LINE_MAIN_DATE)); |
b76c2afc JF |
2011 | } |
2012 | ||
4c6fabc2 | 2013 | timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time); |
b76c2afc | 2014 | waddnstr(view->win, buf, timelen); |
4c6fabc2 | 2015 | waddstr(view->win, " "); |
b76c2afc | 2016 | |
6706b2ba JF |
2017 | col += DATE_COLS; |
2018 | wmove(view->win, lineno, col); | |
2019 | if (type != LINE_CURSOR) | |
2020 | wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR)); | |
b76c2afc | 2021 | |
9989bf60 JF |
2022 | if (opt_utf8) { |
2023 | authorlen = utf8_length(commit->author, AUTHOR_COLS - 2, &col, &trimmed); | |
2024 | } else { | |
2025 | authorlen = strlen(commit->author); | |
2026 | if (authorlen > AUTHOR_COLS - 2) { | |
2027 | authorlen = AUTHOR_COLS - 2; | |
2028 | trimmed = 1; | |
2029 | } | |
2030 | } | |
10e290ee JF |
2031 | |
2032 | if (trimmed) { | |
2033 | waddnstr(view->win, commit->author, authorlen); | |
6706b2ba JF |
2034 | if (type != LINE_CURSOR) |
2035 | wattrset(view->win, get_line_attr(LINE_MAIN_DELIM)); | |
b76c2afc JF |
2036 | waddch(view->win, '~'); |
2037 | } else { | |
2038 | waddstr(view->win, commit->author); | |
22f66b0a JF |
2039 | } |
2040 | ||
10e290ee | 2041 | col += AUTHOR_COLS; |
6706b2ba JF |
2042 | if (type != LINE_CURSOR) |
2043 | wattrset(view->win, A_NORMAL); | |
2044 | ||
54efb62b JF |
2045 | if (opt_rev_graph && commit->graph_size) { |
2046 | size_t i; | |
2047 | ||
2048 | wmove(view->win, lineno, col); | |
2049 | /* Using waddch() instead of waddnstr() ensures that | |
2050 | * they'll be rendered correctly for the cursor line. */ | |
2051 | for (i = 0; i < commit->graph_size; i++) | |
2052 | waddch(view->win, commit->graph[i]); | |
2053 | ||
2054 | col += commit->graph_size + 1; | |
2055 | } | |
2056 | ||
2057 | wmove(view->win, lineno, col); | |
c34d9c9f JF |
2058 | |
2059 | if (commit->refs) { | |
2060 | size_t i = 0; | |
2061 | ||
2062 | do { | |
6706b2ba JF |
2063 | if (type == LINE_CURSOR) |
2064 | ; | |
2065 | else if (commit->refs[i]->tag) | |
c34d9c9f JF |
2066 | wattrset(view->win, get_line_attr(LINE_MAIN_TAG)); |
2067 | else | |
2068 | wattrset(view->win, get_line_attr(LINE_MAIN_REF)); | |
2069 | waddstr(view->win, "["); | |
2070 | waddstr(view->win, commit->refs[i]->name); | |
2071 | waddstr(view->win, "]"); | |
6706b2ba JF |
2072 | if (type != LINE_CURSOR) |
2073 | wattrset(view->win, A_NORMAL); | |
c34d9c9f | 2074 | waddstr(view->win, " "); |
6706b2ba | 2075 | col += strlen(commit->refs[i]->name) + STRING_SIZE("[] "); |
c34d9c9f JF |
2076 | } while (commit->refs[i++]->next); |
2077 | } | |
2078 | ||
6706b2ba JF |
2079 | if (type != LINE_CURSOR) |
2080 | wattrset(view->win, get_line_attr(type)); | |
2081 | ||
2082 | { | |
2083 | int titlelen = strlen(commit->title); | |
2084 | ||
2085 | if (col + titlelen > view->width) | |
2086 | titlelen = view->width - col; | |
2087 | ||
2088 | waddnstr(view->win, commit->title, titlelen); | |
2089 | } | |
22f66b0a JF |
2090 | |
2091 | return TRUE; | |
2092 | } | |
2093 | ||
4c6fabc2 | 2094 | /* Reads git log --pretty=raw output and parses it into the commit struct. */ |
6b161b31 | 2095 | static bool |
701e4f5d | 2096 | main_read(struct view *view, char *line) |
22f66b0a | 2097 | { |
78c70acd | 2098 | enum line_type type = get_line_type(line); |
701e4f5d JF |
2099 | struct commit *commit = view->lines |
2100 | ? view->line[view->lines - 1].data : NULL; | |
22f66b0a | 2101 | |
78c70acd JF |
2102 | switch (type) { |
2103 | case LINE_COMMIT: | |
22f66b0a JF |
2104 | commit = calloc(1, sizeof(struct commit)); |
2105 | if (!commit) | |
2106 | return FALSE; | |
2107 | ||
4c6fabc2 | 2108 | line += STRING_SIZE("commit "); |
b76c2afc | 2109 | |
fe7233c3 | 2110 | view->line[view->lines++].data = commit; |
82e78006 | 2111 | string_copy(commit->id, line); |
c34d9c9f | 2112 | commit->refs = get_refs(commit->id); |
54efb62b | 2113 | commit->graph[commit->graph_size++] = ACS_LTEE; |
78c70acd | 2114 | break; |
22f66b0a | 2115 | |
8855ada4 | 2116 | case LINE_AUTHOR: |
b76c2afc | 2117 | { |
4c6fabc2 | 2118 | char *ident = line + STRING_SIZE("author "); |
b76c2afc JF |
2119 | char *end = strchr(ident, '<'); |
2120 | ||
701e4f5d | 2121 | if (!commit) |
fe7233c3 JF |
2122 | break; |
2123 | ||
b76c2afc JF |
2124 | if (end) { |
2125 | for (; end > ident && isspace(end[-1]); end--) ; | |
2126 | *end = 0; | |
2127 | } | |
2128 | ||
82e78006 | 2129 | string_copy(commit->author, ident); |
b76c2afc | 2130 | |
4c6fabc2 | 2131 | /* Parse epoch and timezone */ |
b76c2afc JF |
2132 | if (end) { |
2133 | char *secs = strchr(end + 1, '>'); | |
2134 | char *zone; | |
2135 | time_t time; | |
2136 | ||
2137 | if (!secs || secs[1] != ' ') | |
2138 | break; | |
2139 | ||
2140 | secs += 2; | |
2141 | time = (time_t) atol(secs); | |
2142 | zone = strchr(secs, ' '); | |
4c6fabc2 | 2143 | if (zone && strlen(zone) == STRING_SIZE(" +0700")) { |
b76c2afc JF |
2144 | long tz; |
2145 | ||
2146 | zone++; | |
2147 | tz = ('0' - zone[1]) * 60 * 60 * 10; | |
2148 | tz += ('0' - zone[2]) * 60 * 60; | |
2149 | tz += ('0' - zone[3]) * 60; | |
2150 | tz += ('0' - zone[4]) * 60; | |
2151 | ||
2152 | if (zone[0] == '-') | |
2153 | tz = -tz; | |
2154 | ||
2155 | time -= tz; | |
2156 | } | |
2157 | gmtime_r(&time, &commit->time); | |
2158 | } | |
2159 | break; | |
2160 | } | |
78c70acd | 2161 | default: |
701e4f5d | 2162 | if (!commit) |
2e8488b4 JF |
2163 | break; |
2164 | ||
2165 | /* Fill in the commit title if it has not already been set. */ | |
2e8488b4 JF |
2166 | if (commit->title[0]) |
2167 | break; | |
2168 | ||
2169 | /* Require titles to start with a non-space character at the | |
2170 | * offset used by git log. */ | |
eb98559e JF |
2171 | /* FIXME: More gracefull handling of titles; append "..." to |
2172 | * shortened titles, etc. */ | |
2e8488b4 | 2173 | if (strncmp(line, " ", 4) || |
eb98559e | 2174 | isspace(line[4])) |
82e78006 JF |
2175 | break; |
2176 | ||
2177 | string_copy(commit->title, line + 4); | |
22f66b0a JF |
2178 | } |
2179 | ||
2180 | return TRUE; | |
2181 | } | |
2182 | ||
6b161b31 | 2183 | static bool |
fe7233c3 | 2184 | main_enter(struct view *view, struct line *line) |
b801d8b2 | 2185 | { |
b3a54cba JF |
2186 | enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT; |
2187 | ||
2188 | open_view(view, REQ_VIEW_DIFF, flags); | |
6b161b31 | 2189 | return TRUE; |
b801d8b2 JF |
2190 | } |
2191 | ||
6b161b31 | 2192 | static struct view_ops main_ops = { |
6734f6b9 | 2193 | "commit", |
6b161b31 JF |
2194 | main_draw, |
2195 | main_read, | |
2196 | main_enter, | |
2197 | }; | |
2e8488b4 | 2198 | |
c34d9c9f | 2199 | |
6b161b31 | 2200 | /* |
10e290ee JF |
2201 | * Unicode / UTF-8 handling |
2202 | * | |
2203 | * NOTE: Much of the following code for dealing with unicode is derived from | |
2204 | * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is | |
2205 | * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28. | |
2206 | */ | |
2207 | ||
2208 | /* I've (over)annotated a lot of code snippets because I am not entirely | |
2209 | * confident that the approach taken by this small UTF-8 interface is correct. | |
2210 | * --jonas */ | |
2211 | ||
2212 | static inline int | |
2213 | unicode_width(unsigned long c) | |
2214 | { | |
2215 | if (c >= 0x1100 && | |
2216 | (c <= 0x115f /* Hangul Jamo */ | |
2217 | || c == 0x2329 | |
2218 | || c == 0x232a | |
2219 | || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f) | |
f97f4012 | 2220 | /* CJK ... Yi */ |
10e290ee JF |
2221 | || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */ |
2222 | || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */ | |
2223 | || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */ | |
2224 | || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */ | |
2225 | || (c >= 0xffe0 && c <= 0xffe6) | |
2226 | || (c >= 0x20000 && c <= 0x2fffd) | |
2227 | || (c >= 0x30000 && c <= 0x3fffd))) | |
2228 | return 2; | |
2229 | ||
2230 | return 1; | |
2231 | } | |
2232 | ||
2233 | /* Number of bytes used for encoding a UTF-8 character indexed by first byte. | |
2234 | * Illegal bytes are set one. */ | |
2235 | static const unsigned char utf8_bytes[256] = { | |
2236 | 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, | |
2237 | 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, | |
2238 | 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, | |
2239 | 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, | |
2240 | 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, | |
2241 | 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, | |
2242 | 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, | |
2243 | 3,3,3,3,3,3,3,3, 3,3,3,3,3,3,3,3, 4,4,4,4,4,4,4,4, 5,5,5,5,6,6,1,1, | |
2244 | }; | |
2245 | ||
2246 | /* Decode UTF-8 multi-byte representation into a unicode character. */ | |
2247 | static inline unsigned long | |
2248 | utf8_to_unicode(const char *string, size_t length) | |
2249 | { | |
2250 | unsigned long unicode; | |
2251 | ||
2252 | switch (length) { | |
2253 | case 1: | |
2254 | unicode = string[0]; | |
2255 | break; | |
2256 | case 2: | |
2257 | unicode = (string[0] & 0x1f) << 6; | |
2258 | unicode += (string[1] & 0x3f); | |
2259 | break; | |
2260 | case 3: | |
2261 | unicode = (string[0] & 0x0f) << 12; | |
2262 | unicode += ((string[1] & 0x3f) << 6); | |
2263 | unicode += (string[2] & 0x3f); | |
2264 | break; | |
2265 | case 4: | |
2266 | unicode = (string[0] & 0x0f) << 18; | |
2267 | unicode += ((string[1] & 0x3f) << 12); | |
2268 | unicode += ((string[2] & 0x3f) << 6); | |
2269 | unicode += (string[3] & 0x3f); | |
2270 | break; | |
2271 | case 5: | |
2272 | unicode = (string[0] & 0x0f) << 24; | |
2273 | unicode += ((string[1] & 0x3f) << 18); | |
2274 | unicode += ((string[2] & 0x3f) << 12); | |
2275 | unicode += ((string[3] & 0x3f) << 6); | |
2276 | unicode += (string[4] & 0x3f); | |
2277 | break; | |
68b6e0eb | 2278 | case 6: |
10e290ee JF |
2279 | unicode = (string[0] & 0x01) << 30; |
2280 | unicode += ((string[1] & 0x3f) << 24); | |
2281 | unicode += ((string[2] & 0x3f) << 18); | |
2282 | unicode += ((string[3] & 0x3f) << 12); | |
2283 | unicode += ((string[4] & 0x3f) << 6); | |
2284 | unicode += (string[5] & 0x3f); | |
2285 | break; | |
2286 | default: | |
2287 | die("Invalid unicode length"); | |
2288 | } | |
2289 | ||
2290 | /* Invalid characters could return the special 0xfffd value but NUL | |
2291 | * should be just as good. */ | |
2292 | return unicode > 0xffff ? 0 : unicode; | |
2293 | } | |
2294 | ||
2295 | /* Calculates how much of string can be shown within the given maximum width | |
2296 | * and sets trimmed parameter to non-zero value if all of string could not be | |
2297 | * shown. | |
2298 | * | |
2299 | * Additionally, adds to coloffset how many many columns to move to align with | |
2300 | * the expected position. Takes into account how multi-byte and double-width | |
2301 | * characters will effect the cursor position. | |
2302 | * | |
2303 | * Returns the number of bytes to output from string to satisfy max_width. */ | |
2304 | static size_t | |
2305 | utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed) | |
2306 | { | |
2307 | const char *start = string; | |
2308 | const char *end = strchr(string, '\0'); | |
2309 | size_t mbwidth = 0; | |
2310 | size_t width = 0; | |
2311 | ||
2312 | *trimmed = 0; | |
2313 | ||
2314 | while (string < end) { | |
2315 | int c = *(unsigned char *) string; | |
2316 | unsigned char bytes = utf8_bytes[c]; | |
2317 | size_t ucwidth; | |
2318 | unsigned long unicode; | |
2319 | ||
2320 | if (string + bytes > end) | |
2321 | break; | |
2322 | ||
2323 | /* Change representation to figure out whether | |
2324 | * it is a single- or double-width character. */ | |
2325 | ||
2326 | unicode = utf8_to_unicode(string, bytes); | |
2327 | /* FIXME: Graceful handling of invalid unicode character. */ | |
2328 | if (!unicode) | |
2329 | break; | |
2330 | ||
2331 | ucwidth = unicode_width(unicode); | |
2332 | width += ucwidth; | |
2333 | if (width > max_width) { | |
2334 | *trimmed = 1; | |
2335 | break; | |
2336 | } | |
2337 | ||
2338 | /* The column offset collects the differences between the | |
2339 | * number of bytes encoding a character and the number of | |
2340 | * columns will be used for rendering said character. | |
2341 | * | |
2342 | * So if some character A is encoded in 2 bytes, but will be | |
2343 | * represented on the screen using only 1 byte this will and up | |
2344 | * adding 1 to the multi-byte column offset. | |
2345 | * | |
2346 | * Assumes that no double-width character can be encoding in | |
2347 | * less than two bytes. */ | |
2348 | if (bytes > ucwidth) | |
2349 | mbwidth += bytes - ucwidth; | |
2350 | ||
2351 | string += bytes; | |
2352 | } | |
2353 | ||
2354 | *coloffset += mbwidth; | |
2355 | ||
2356 | return string - start; | |
2357 | } | |
2358 | ||
2359 | ||
2360 | /* | |
6b161b31 JF |
2361 | * Status management |
2362 | */ | |
2e8488b4 | 2363 | |
8855ada4 | 2364 | /* Whether or not the curses interface has been initialized. */ |
68b6e0eb | 2365 | static bool cursed = FALSE; |
8855ada4 | 2366 | |
6b161b31 JF |
2367 | /* The status window is used for polling keystrokes. */ |
2368 | static WINDOW *status_win; | |
4a2909a7 | 2369 | |
2e8488b4 | 2370 | /* Update status and title window. */ |
4a2909a7 JF |
2371 | static void |
2372 | report(const char *msg, ...) | |
2373 | { | |
6706b2ba JF |
2374 | static bool empty = TRUE; |
2375 | struct view *view = display[current_view]; | |
b76c2afc | 2376 | |
6706b2ba JF |
2377 | if (!empty || *msg) { |
2378 | va_list args; | |
4a2909a7 | 2379 | |
6706b2ba | 2380 | va_start(args, msg); |
4b76734f | 2381 | |
6706b2ba JF |
2382 | werase(status_win); |
2383 | wmove(status_win, 0, 0); | |
2384 | if (*msg) { | |
2385 | vwprintw(status_win, msg, args); | |
2386 | empty = FALSE; | |
2387 | } else { | |
2388 | empty = TRUE; | |
2389 | } | |
2390 | wrefresh(status_win); | |
b801d8b2 | 2391 | |
6706b2ba JF |
2392 | va_end(args); |
2393 | } | |
2394 | ||
2395 | update_view_title(view); | |
85af6284 | 2396 | update_display_cursor(); |
b801d8b2 JF |
2397 | } |
2398 | ||
6b161b31 JF |
2399 | /* Controls when nodelay should be in effect when polling user input. */ |
2400 | static void | |
1ba2ae4b | 2401 | set_nonblocking_input(bool loading) |
b801d8b2 | 2402 | { |
6706b2ba | 2403 | static unsigned int loading_views; |
b801d8b2 | 2404 | |
6706b2ba JF |
2405 | if ((loading == FALSE && loading_views-- == 1) || |
2406 | (loading == TRUE && loading_views++ == 0)) | |
1ba2ae4b | 2407 | nodelay(status_win, loading); |
6b161b31 JF |
2408 | } |
2409 | ||
2410 | static void | |
2411 | init_display(void) | |
2412 | { | |
2413 | int x, y; | |
b76c2afc | 2414 | |
6908bdbd JF |
2415 | /* Initialize the curses library */ |
2416 | if (isatty(STDIN_FILENO)) { | |
8855ada4 | 2417 | cursed = !!initscr(); |
6908bdbd JF |
2418 | } else { |
2419 | /* Leave stdin and stdout alone when acting as a pager. */ | |
2420 | FILE *io = fopen("/dev/tty", "r+"); | |
2421 | ||
8855ada4 | 2422 | cursed = !!newterm(NULL, io, io); |
6908bdbd JF |
2423 | } |
2424 | ||
8855ada4 JF |
2425 | if (!cursed) |
2426 | die("Failed to initialize curses"); | |
2427 | ||
2e8488b4 JF |
2428 | nonl(); /* Tell curses not to do NL->CR/NL on output */ |
2429 | cbreak(); /* Take input chars one at a time, no wait for \n */ | |
2430 | noecho(); /* Don't echo input */ | |
b801d8b2 | 2431 | leaveok(stdscr, TRUE); |
b801d8b2 JF |
2432 | |
2433 | if (has_colors()) | |
2434 | init_colors(); | |
2435 | ||
2436 | getmaxyx(stdscr, y, x); | |
2437 | status_win = newwin(1, 0, y - 1, 0); | |
2438 | if (!status_win) | |
2439 | die("Failed to create status window"); | |
2440 | ||
2441 | /* Enable keyboard mapping */ | |
2442 | keypad(status_win, TRUE); | |
78c70acd | 2443 | wbkgdset(status_win, get_line_attr(LINE_STATUS)); |
6b161b31 JF |
2444 | } |
2445 | ||
c34d9c9f JF |
2446 | |
2447 | /* | |
2448 | * Repository references | |
2449 | */ | |
2450 | ||
2451 | static struct ref *refs; | |
3a91b75e | 2452 | static size_t refs_size; |
c34d9c9f | 2453 | |
1307df1a JF |
2454 | /* Id <-> ref store */ |
2455 | static struct ref ***id_refs; | |
2456 | static size_t id_refs_size; | |
2457 | ||
c34d9c9f JF |
2458 | static struct ref ** |
2459 | get_refs(char *id) | |
2460 | { | |
1307df1a JF |
2461 | struct ref ***tmp_id_refs; |
2462 | struct ref **ref_list = NULL; | |
2463 | size_t ref_list_size = 0; | |
c34d9c9f JF |
2464 | size_t i; |
2465 | ||
1307df1a JF |
2466 | for (i = 0; i < id_refs_size; i++) |
2467 | if (!strcmp(id, id_refs[i][0]->id)) | |
2468 | return id_refs[i]; | |
2469 | ||
2470 | tmp_id_refs = realloc(id_refs, (id_refs_size + 1) * sizeof(*id_refs)); | |
2471 | if (!tmp_id_refs) | |
2472 | return NULL; | |
2473 | ||
2474 | id_refs = tmp_id_refs; | |
2475 | ||
c34d9c9f JF |
2476 | for (i = 0; i < refs_size; i++) { |
2477 | struct ref **tmp; | |
2478 | ||
2479 | if (strcmp(id, refs[i].id)) | |
2480 | continue; | |
2481 | ||
1307df1a | 2482 | tmp = realloc(ref_list, (ref_list_size + 1) * sizeof(*ref_list)); |
c34d9c9f | 2483 | if (!tmp) { |
1307df1a JF |
2484 | if (ref_list) |
2485 | free(ref_list); | |
c34d9c9f JF |
2486 | return NULL; |
2487 | } | |
2488 | ||
1307df1a JF |
2489 | ref_list = tmp; |
2490 | if (ref_list_size > 0) | |
2491 | ref_list[ref_list_size - 1]->next = 1; | |
2492 | ref_list[ref_list_size] = &refs[i]; | |
3af8774e JF |
2493 | |
2494 | /* XXX: The properties of the commit chains ensures that we can | |
2495 | * safely modify the shared ref. The repo references will | |
2496 | * always be similar for the same id. */ | |
1307df1a JF |
2497 | ref_list[ref_list_size]->next = 0; |
2498 | ref_list_size++; | |
c34d9c9f JF |
2499 | } |
2500 | ||
1307df1a JF |
2501 | if (ref_list) |
2502 | id_refs[id_refs_size++] = ref_list; | |
2503 | ||
2504 | return ref_list; | |
c34d9c9f JF |
2505 | } |
2506 | ||
2507 | static int | |
d0cea5f9 | 2508 | read_ref(char *id, int idlen, char *name, int namelen) |
c34d9c9f | 2509 | { |
d0cea5f9 JF |
2510 | struct ref *ref; |
2511 | bool tag = FALSE; | |
d0cea5f9 | 2512 | |
8b0297ae JF |
2513 | if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) { |
2514 | /* Commits referenced by tags has "^{}" appended. */ | |
2515 | if (name[namelen - 1] != '}') | |
2516 | return OK; | |
2517 | ||
d0cea5f9 JF |
2518 | while (namelen > 0 && name[namelen] != '^') |
2519 | namelen--; | |
c34d9c9f | 2520 | |
d0cea5f9 | 2521 | tag = TRUE; |
8b0297ae JF |
2522 | namelen -= STRING_SIZE("refs/tags/"); |
2523 | name += STRING_SIZE("refs/tags/"); | |
c34d9c9f | 2524 | |
d0cea5f9 | 2525 | } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) { |
8b0297ae JF |
2526 | namelen -= STRING_SIZE("refs/heads/"); |
2527 | name += STRING_SIZE("refs/heads/"); | |
c34d9c9f | 2528 | |
d0cea5f9 JF |
2529 | } else if (!strcmp(name, "HEAD")) { |
2530 | return OK; | |
2531 | } | |
6706b2ba | 2532 | |
d0cea5f9 JF |
2533 | refs = realloc(refs, sizeof(*refs) * (refs_size + 1)); |
2534 | if (!refs) | |
2535 | return ERR; | |
c34d9c9f | 2536 | |
d0cea5f9 | 2537 | ref = &refs[refs_size++]; |
8b0297ae | 2538 | ref->name = malloc(namelen + 1); |
d0cea5f9 JF |
2539 | if (!ref->name) |
2540 | return ERR; | |
3af8774e | 2541 | |
8b0297ae JF |
2542 | strncpy(ref->name, name, namelen); |
2543 | ref->name[namelen] = 0; | |
d0cea5f9 JF |
2544 | ref->tag = tag; |
2545 | string_copy(ref->id, id); | |
3af8774e | 2546 | |
d0cea5f9 JF |
2547 | return OK; |
2548 | } | |
c34d9c9f | 2549 | |
d0cea5f9 JF |
2550 | static int |
2551 | load_refs(void) | |
2552 | { | |
2553 | const char *cmd_env = getenv("TIG_LS_REMOTE"); | |
2554 | const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE; | |
c34d9c9f | 2555 | |
4a63c884 | 2556 | return read_properties(popen(cmd, "r"), "\t", read_ref); |
d0cea5f9 | 2557 | } |
c34d9c9f | 2558 | |
d0cea5f9 | 2559 | static int |
14c778a6 | 2560 | read_repo_config_option(char *name, int namelen, char *value, int valuelen) |
d0cea5f9 | 2561 | { |
22913179 | 2562 | if (!strcmp(name, "i18n.commitencoding")) |
d0cea5f9 | 2563 | string_copy(opt_encoding, value); |
c34d9c9f | 2564 | |
c34d9c9f JF |
2565 | return OK; |
2566 | } | |
2567 | ||
4670cf89 | 2568 | static int |
14c778a6 | 2569 | load_repo_config(void) |
4670cf89 | 2570 | { |
66749723 | 2571 | return read_properties(popen("git repo-config --list", "r"), |
14c778a6 | 2572 | "=", read_repo_config_option); |
d0cea5f9 JF |
2573 | } |
2574 | ||
2575 | static int | |
4a63c884 | 2576 | read_properties(FILE *pipe, const char *separators, |
d0cea5f9 JF |
2577 | int (*read_property)(char *, int, char *, int)) |
2578 | { | |
4670cf89 JF |
2579 | char buffer[BUFSIZ]; |
2580 | char *name; | |
d0cea5f9 | 2581 | int state = OK; |
4670cf89 JF |
2582 | |
2583 | if (!pipe) | |
2584 | return ERR; | |
2585 | ||
d0cea5f9 | 2586 | while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) { |
4a63c884 JF |
2587 | char *value; |
2588 | size_t namelen; | |
2589 | size_t valuelen; | |
4670cf89 | 2590 | |
4a63c884 JF |
2591 | name = chomp_string(name); |
2592 | namelen = strcspn(name, separators); | |
2593 | ||
2594 | if (name[namelen]) { | |
2595 | name[namelen] = 0; | |
2596 | value = chomp_string(name + namelen + 1); | |
d0cea5f9 | 2597 | valuelen = strlen(value); |
4670cf89 | 2598 | |
d0cea5f9 | 2599 | } else { |
d0cea5f9 JF |
2600 | value = ""; |
2601 | valuelen = 0; | |
4670cf89 | 2602 | } |
d0cea5f9 | 2603 | |
3c3801c2 | 2604 | state = read_property(name, namelen, value, valuelen); |
4670cf89 JF |
2605 | } |
2606 | ||
d0cea5f9 JF |
2607 | if (state != ERR && ferror(pipe)) |
2608 | state = ERR; | |
4670cf89 JF |
2609 | |
2610 | pclose(pipe); | |
2611 | ||
d0cea5f9 | 2612 | return state; |
4670cf89 JF |
2613 | } |
2614 | ||
d0cea5f9 | 2615 | |
6b161b31 JF |
2616 | /* |
2617 | * Main | |
2618 | */ | |
2619 | ||
b5c9e67f | 2620 | static void __NORETURN |
6b161b31 JF |
2621 | quit(int sig) |
2622 | { | |
8855ada4 JF |
2623 | /* XXX: Restore tty modes and let the OS cleanup the rest! */ |
2624 | if (cursed) | |
2625 | endwin(); | |
6b161b31 JF |
2626 | exit(0); |
2627 | } | |
2628 | ||
c6704a4e JF |
2629 | static void __NORETURN |
2630 | die(const char *err, ...) | |
6b161b31 JF |
2631 | { |
2632 | va_list args; | |
2633 | ||
2634 | endwin(); | |
2635 | ||
2636 | va_start(args, err); | |
2637 | fputs("tig: ", stderr); | |
2638 | vfprintf(stderr, err, args); | |
2639 | fputs("\n", stderr); | |
2640 | va_end(args); | |
2641 | ||
2642 | exit(1); | |
2643 | } | |
2644 | ||
2645 | int | |
2646 | main(int argc, char *argv[]) | |
2647 | { | |
1ba2ae4b | 2648 | struct view *view; |
6b161b31 | 2649 | enum request request; |
1ba2ae4b | 2650 | size_t i; |
6b161b31 JF |
2651 | |
2652 | signal(SIGINT, quit); | |
2653 | ||
660e09ad JF |
2654 | if (load_options() == ERR) |
2655 | die("Failed to load user config."); | |
2656 | ||
2657 | /* Load the repo config file so options can be overwritten from | |
afdc35b3 | 2658 | * the command line. */ |
14c778a6 | 2659 | if (load_repo_config() == ERR) |
afdc35b3 JF |
2660 | die("Failed to load repo config."); |
2661 | ||
8855ada4 | 2662 | if (!parse_options(argc, argv)) |
6b161b31 JF |
2663 | return 0; |
2664 | ||
c34d9c9f JF |
2665 | if (load_refs() == ERR) |
2666 | die("Failed to load refs."); | |
2667 | ||
7bb55251 JF |
2668 | /* Require a git repository unless when running in pager mode. */ |
2669 | if (refs_size == 0 && opt_request != REQ_VIEW_PAGER) | |
2670 | die("Not a git repository"); | |
2671 | ||
1ba2ae4b JF |
2672 | for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++) |
2673 | view->cmd_env = getenv(view->cmd_env); | |
2674 | ||
6b161b31 JF |
2675 | request = opt_request; |
2676 | ||
2677 | init_display(); | |
b801d8b2 JF |
2678 | |
2679 | while (view_driver(display[current_view], request)) { | |
6b161b31 | 2680 | int key; |
b801d8b2 JF |
2681 | int i; |
2682 | ||
6b161b31 JF |
2683 | foreach_view (view, i) |
2684 | update_view(view); | |
b801d8b2 JF |
2685 | |
2686 | /* Refresh, accept single keystroke of input */ | |
6b161b31 JF |
2687 | key = wgetch(status_win); |
2688 | request = get_request(key); | |
03a93dbb | 2689 | |
6706b2ba | 2690 | /* Some low-level request handling. This keeps access to |
fac7db6c JF |
2691 | * status_win restricted. */ |
2692 | switch (request) { | |
2693 | case REQ_PROMPT: | |
6908bdbd JF |
2694 | report(":"); |
2695 | /* Temporarily switch to line-oriented and echoed | |
2696 | * input. */ | |
03a93dbb JF |
2697 | nocbreak(); |
2698 | echo(); | |
49f2b43f JF |
2699 | |
2700 | if (wgetnstr(status_win, opt_cmd + 4, sizeof(opt_cmd) - 4) == OK) { | |
2701 | memcpy(opt_cmd, "git ", 4); | |
2702 | opt_request = REQ_VIEW_PAGER; | |
2703 | } else { | |
6a7bb912 JF |
2704 | report("Prompt interrupted by loading view, " |
2705 | "press 'z' to stop loading views"); | |
2706 | request = REQ_SCREEN_UPDATE; | |
49f2b43f JF |
2707 | } |
2708 | ||
6908bdbd JF |
2709 | noecho(); |
2710 | cbreak(); | |
fac7db6c JF |
2711 | break; |
2712 | ||
2713 | case REQ_SCREEN_RESIZE: | |
2714 | { | |
2715 | int height, width; | |
2716 | ||
2717 | getmaxyx(stdscr, height, width); | |
2718 | ||
2719 | /* Resize the status view and let the view driver take | |
2720 | * care of resizing the displayed views. */ | |
2721 | wresize(status_win, 1, width); | |
2722 | mvwin(status_win, height - 1, 0); | |
2723 | wrefresh(status_win); | |
2724 | break; | |
2725 | } | |
2726 | default: | |
2727 | break; | |
03a93dbb | 2728 | } |
b801d8b2 JF |
2729 | } |
2730 | ||
2731 | quit(0); | |
2732 | ||
2733 | return 0; | |
2734 | } |