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 |
0f11e3a9 | 15 | #define VERSION "tig-0.4.git" |
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 | 32 | |
6b68fd24 JF |
33 | #include <locale.h> |
34 | #include <langinfo.h> | |
35 | #include <iconv.h> | |
36 | ||
b801d8b2 | 37 | #include <curses.h> |
b801d8b2 | 38 | |
e2da526d JF |
39 | #if __GNUC__ >= 3 |
40 | #define __NORETURN __attribute__((__noreturn__)) | |
41 | #else | |
42 | #define __NORETURN | |
43 | #endif | |
44 | ||
45 | static void __NORETURN die(const char *err, ...); | |
b801d8b2 | 46 | static void report(const char *msg, ...); |
4a63c884 | 47 | static int read_properties(FILE *pipe, const char *separators, int (*read)(char *, int, char *, int)); |
1ba2ae4b | 48 | static void set_nonblocking_input(bool loading); |
10e290ee | 49 | static size_t utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed); |
6b161b31 JF |
50 | |
51 | #define ABS(x) ((x) >= 0 ? (x) : -(x)) | |
52 | #define MIN(x, y) ((x) < (y) ? (x) : (y)) | |
53 | ||
54 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) | |
55 | #define STRING_SIZE(x) (sizeof(x) - 1) | |
b76c2afc | 56 | |
2e8488b4 JF |
57 | #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */ |
58 | #define SIZEOF_CMD 1024 /* Size of command buffer. */ | |
54efb62b | 59 | #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */ |
b801d8b2 | 60 | |
82e78006 JF |
61 | /* This color name can be used to refer to the default term colors. */ |
62 | #define COLOR_DEFAULT (-1) | |
78c70acd | 63 | |
6b68fd24 JF |
64 | #define ICONV_NONE ((iconv_t) -1) |
65 | ||
82e78006 | 66 | /* The format and size of the date column in the main view. */ |
4c6fabc2 | 67 | #define DATE_FORMAT "%Y-%m-%d %H:%M" |
6b161b31 | 68 | #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ") |
4c6fabc2 | 69 | |
10e290ee JF |
70 | #define AUTHOR_COLS 20 |
71 | ||
a28bcc22 | 72 | /* The default interval between line numbers. */ |
4a2909a7 | 73 | #define NUMBER_INTERVAL 1 |
82e78006 | 74 | |
6706b2ba JF |
75 | #define TABSIZE 8 |
76 | ||
a28bcc22 JF |
77 | #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3) |
78 | ||
8eb62770 JF |
79 | #define TIG_LS_REMOTE \ |
80 | "git ls-remote . 2>/dev/null" | |
81 | ||
82 | #define TIG_DIFF_CMD \ | |
73fb51d5 | 83 | "git show --root --patch-with-stat --find-copies-harder -B -C %s 2>/dev/null" |
8eb62770 JF |
84 | |
85 | #define TIG_LOG_CMD \ | |
8fee6614 | 86 | "git log --cc --stat -n100 %s 2>/dev/null" |
8eb62770 JF |
87 | |
88 | #define TIG_MAIN_CMD \ | |
8fee6614 | 89 | "git log --topo-order --pretty=raw %s 2>/dev/null" |
8eb62770 JF |
90 | |
91 | /* XXX: Needs to be defined to the empty string. */ | |
92 | #define TIG_HELP_CMD "" | |
93 | #define TIG_PAGER_CMD "" | |
94 | ||
8855ada4 | 95 | /* Some ascii-shorthands fitted into the ncurses namespace. */ |
a28bcc22 JF |
96 | #define KEY_TAB '\t' |
97 | #define KEY_RETURN '\r' | |
4a2909a7 JF |
98 | #define KEY_ESC 27 |
99 | ||
6706b2ba | 100 | |
c34d9c9f | 101 | struct ref { |
468876c9 JF |
102 | char *name; /* Ref name; tag or head names are shortened. */ |
103 | char id[41]; /* Commit SHA1 ID */ | |
104 | unsigned int tag:1; /* Is it a tag? */ | |
105 | unsigned int next:1; /* For ref lists: are there more refs? */ | |
c34d9c9f JF |
106 | }; |
107 | ||
ff26aa29 | 108 | static struct ref **get_refs(char *id); |
4c6fabc2 | 109 | |
660e09ad JF |
110 | struct int_map { |
111 | const char *name; | |
112 | int namelen; | |
113 | int value; | |
114 | }; | |
115 | ||
116 | static int | |
117 | set_from_int_map(struct int_map *map, size_t map_size, | |
118 | int *value, const char *name, int namelen) | |
119 | { | |
120 | ||
121 | int i; | |
122 | ||
123 | for (i = 0; i < map_size; i++) | |
124 | if (namelen == map[i].namelen && | |
125 | !strncasecmp(name, map[i].name, namelen)) { | |
126 | *value = map[i].value; | |
127 | return OK; | |
128 | } | |
129 | ||
130 | return ERR; | |
131 | } | |
132 | ||
6706b2ba | 133 | |
03a93dbb JF |
134 | /* |
135 | * String helpers | |
136 | */ | |
78c70acd | 137 | |
82e78006 | 138 | static inline void |
4685845e | 139 | string_ncopy(char *dst, const char *src, int dstlen) |
82e78006 JF |
140 | { |
141 | strncpy(dst, src, dstlen - 1); | |
142 | dst[dstlen - 1] = 0; | |
03a93dbb | 143 | |
82e78006 JF |
144 | } |
145 | ||
146 | /* Shorthand for safely copying into a fixed buffer. */ | |
147 | #define string_copy(dst, src) \ | |
148 | string_ncopy(dst, src, sizeof(dst)) | |
149 | ||
4a63c884 JF |
150 | static char * |
151 | chomp_string(char *name) | |
152 | { | |
153 | int namelen; | |
154 | ||
155 | while (isspace(*name)) | |
156 | name++; | |
157 | ||
158 | namelen = strlen(name) - 1; | |
159 | while (namelen > 0 && isspace(name[namelen])) | |
160 | name[namelen--] = 0; | |
161 | ||
162 | return name; | |
163 | } | |
164 | ||
cc2d1364 JF |
165 | static bool |
166 | string_nformat(char *buf, size_t bufsize, int *bufpos, const char *fmt, ...) | |
167 | { | |
168 | va_list args; | |
169 | int pos = bufpos ? *bufpos : 0; | |
170 | ||
171 | va_start(args, fmt); | |
172 | pos += vsnprintf(buf + pos, bufsize - pos, fmt, args); | |
173 | va_end(args); | |
174 | ||
175 | if (bufpos) | |
176 | *bufpos = pos; | |
177 | ||
178 | return pos >= bufsize ? FALSE : TRUE; | |
179 | } | |
180 | ||
181 | #define string_format(buf, fmt, args...) \ | |
182 | string_nformat(buf, sizeof(buf), NULL, fmt, args) | |
183 | ||
184 | #define string_format_from(buf, from, fmt, args...) \ | |
185 | string_nformat(buf, sizeof(buf), from, fmt, args) | |
6706b2ba | 186 | |
201f5a18 JF |
187 | static int |
188 | string_enum_compare(const char *str1, const char *str2, int len) | |
189 | { | |
190 | size_t i; | |
191 | ||
192 | #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.') | |
193 | ||
194 | /* Diff-Header == DIFF_HEADER */ | |
195 | for (i = 0; i < len; i++) { | |
196 | if (toupper(str1[i]) == toupper(str2[i])) | |
197 | continue; | |
198 | ||
199 | if (string_enum_sep(str1[i]) && | |
200 | string_enum_sep(str2[i])) | |
201 | continue; | |
202 | ||
203 | return str1[i] - str2[i]; | |
204 | } | |
205 | ||
206 | return 0; | |
207 | } | |
208 | ||
03a93dbb JF |
209 | /* Shell quoting |
210 | * | |
211 | * NOTE: The following is a slightly modified copy of the git project's shell | |
212 | * quoting routines found in the quote.c file. | |
213 | * | |
214 | * Help to copy the thing properly quoted for the shell safety. any single | |
215 | * quote is replaced with '\'', any exclamation point is replaced with '\!', | |
216 | * and the whole thing is enclosed in a | |
217 | * | |
218 | * E.g. | |
219 | * original sq_quote result | |
220 | * name ==> name ==> 'name' | |
221 | * a b ==> a b ==> 'a b' | |
222 | * a'b ==> a'\''b ==> 'a'\''b' | |
223 | * a!b ==> a'\!'b ==> 'a'\!'b' | |
224 | */ | |
225 | ||
226 | static size_t | |
227 | sq_quote(char buf[SIZEOF_CMD], size_t bufsize, const char *src) | |
228 | { | |
229 | char c; | |
230 | ||
a9274b95 | 231 | #define BUFPUT(x) do { if (bufsize < SIZEOF_CMD) buf[bufsize++] = (x); } while (0) |
03a93dbb JF |
232 | |
233 | BUFPUT('\''); | |
234 | while ((c = *src++)) { | |
235 | if (c == '\'' || c == '!') { | |
236 | BUFPUT('\''); | |
237 | BUFPUT('\\'); | |
238 | BUFPUT(c); | |
239 | BUFPUT('\''); | |
240 | } else { | |
241 | BUFPUT(c); | |
242 | } | |
243 | } | |
244 | BUFPUT('\''); | |
245 | ||
246 | return bufsize; | |
247 | } | |
248 | ||
82e78006 | 249 | |
24b5b3e0 JF |
250 | /* |
251 | * User requests | |
252 | */ | |
253 | ||
254 | #define REQ_INFO \ | |
255 | /* XXX: Keep the view request first and in sync with views[]. */ \ | |
256 | REQ_GROUP("View switching") \ | |
257 | REQ_(VIEW_MAIN, "Show main view"), \ | |
258 | REQ_(VIEW_DIFF, "Show diff view"), \ | |
259 | REQ_(VIEW_LOG, "Show log view"), \ | |
260 | REQ_(VIEW_HELP, "Show help page"), \ | |
261 | REQ_(VIEW_PAGER, "Show pager view"), \ | |
262 | \ | |
263 | REQ_GROUP("View manipulation") \ | |
264 | REQ_(ENTER, "Enter current line and scroll"), \ | |
265 | REQ_(NEXT, "Move to next"), \ | |
266 | REQ_(PREVIOUS, "Move to previous"), \ | |
267 | REQ_(VIEW_NEXT, "Move focus to next view"), \ | |
268 | REQ_(VIEW_CLOSE, "Close the current view"), \ | |
269 | REQ_(QUIT, "Close all views and quit"), \ | |
270 | \ | |
271 | REQ_GROUP("Cursor navigation") \ | |
272 | REQ_(MOVE_UP, "Move cursor one line up"), \ | |
273 | REQ_(MOVE_DOWN, "Move cursor one line down"), \ | |
274 | REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \ | |
275 | REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \ | |
276 | REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \ | |
277 | REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \ | |
278 | \ | |
279 | REQ_GROUP("Scrolling") \ | |
280 | REQ_(SCROLL_LINE_UP, "Scroll one line up"), \ | |
281 | REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \ | |
282 | REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \ | |
283 | REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \ | |
284 | \ | |
285 | REQ_GROUP("Misc") \ | |
286 | REQ_(PROMPT, "Bring up the prompt"), \ | |
287 | REQ_(SCREEN_UPDATE, "Update the screen"), \ | |
288 | REQ_(SCREEN_REDRAW, "Redraw the screen"), \ | |
289 | REQ_(SCREEN_RESIZE, "Resize the screen"), \ | |
290 | REQ_(SHOW_VERSION, "Show version information"), \ | |
291 | REQ_(STOP_LOADING, "Stop all loading views"), \ | |
54efb62b | 292 | REQ_(TOGGLE_LINENO, "Toggle line numbers"), \ |
04e2b7b2 | 293 | REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization") |
24b5b3e0 JF |
294 | |
295 | ||
296 | /* User action requests. */ | |
297 | enum request { | |
298 | #define REQ_GROUP(help) | |
299 | #define REQ_(req, help) REQ_##req | |
300 | ||
301 | /* Offset all requests to avoid conflicts with ncurses getch values. */ | |
302 | REQ_OFFSET = KEY_MAX + 1, | |
04e2b7b2 JF |
303 | REQ_INFO, |
304 | REQ_UNKNOWN, | |
24b5b3e0 JF |
305 | |
306 | #undef REQ_GROUP | |
307 | #undef REQ_ | |
308 | }; | |
309 | ||
310 | struct request_info { | |
311 | enum request request; | |
04e2b7b2 JF |
312 | char *name; |
313 | int namelen; | |
24b5b3e0 JF |
314 | char *help; |
315 | }; | |
316 | ||
317 | static struct request_info req_info[] = { | |
04e2b7b2 JF |
318 | #define REQ_GROUP(help) { 0, NULL, 0, (help) }, |
319 | #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) } | |
24b5b3e0 JF |
320 | REQ_INFO |
321 | #undef REQ_GROUP | |
322 | #undef REQ_ | |
323 | }; | |
324 | ||
04e2b7b2 JF |
325 | static enum request |
326 | get_request(const char *name) | |
327 | { | |
328 | int namelen = strlen(name); | |
329 | int i; | |
330 | ||
331 | for (i = 0; i < ARRAY_SIZE(req_info); i++) | |
332 | if (req_info[i].namelen == namelen && | |
333 | !string_enum_compare(req_info[i].name, name, namelen)) | |
334 | return req_info[i].request; | |
335 | ||
336 | return REQ_UNKNOWN; | |
337 | } | |
338 | ||
339 | ||
8eb62770 JF |
340 | /* |
341 | * Options | |
342 | */ | |
b76c2afc | 343 | |
4b8c01a3 JF |
344 | static const char usage[] = |
345 | VERSION " (" __DATE__ ")\n" | |
346 | "\n" | |
347 | "Usage: tig [options]\n" | |
348 | " or: tig [options] [--] [git log options]\n" | |
349 | " or: tig [options] log [git log options]\n" | |
350 | " or: tig [options] diff [git diff options]\n" | |
351 | " or: tig [options] show [git show options]\n" | |
352 | " or: tig [options] < [git command output]\n" | |
353 | "\n" | |
354 | "Options:\n" | |
355 | " -l Start up in log view\n" | |
356 | " -d Start up in diff view\n" | |
357 | " -n[I], --line-number[=I] Show line numbers with given interval\n" | |
b3c965c9 | 358 | " -b[N], --tab-size[=N] Set number of spaces for tab expansion\n" |
4b8c01a3 JF |
359 | " -- Mark end of tig options\n" |
360 | " -v, --version Show version and exit\n" | |
361 | " -h, --help Show help message and exit\n"; | |
362 | ||
6706b2ba JF |
363 | /* Option and state variables. */ |
364 | static bool opt_line_number = FALSE; | |
54efb62b | 365 | static bool opt_rev_graph = TRUE; |
2e8488b4 | 366 | static int opt_num_interval = NUMBER_INTERVAL; |
6706b2ba | 367 | static int opt_tab_size = TABSIZE; |
6b161b31 | 368 | static enum request opt_request = REQ_VIEW_MAIN; |
03a93dbb | 369 | static char opt_cmd[SIZEOF_CMD] = ""; |
6908bdbd | 370 | static FILE *opt_pipe = NULL; |
6b68fd24 JF |
371 | static char opt_encoding[20] = "UTF-8"; |
372 | static bool opt_utf8 = TRUE; | |
373 | static char opt_codeset[20] = "UTF-8"; | |
374 | static iconv_t opt_iconv = ICONV_NONE; | |
b76c2afc | 375 | |
6dbf6c19 JF |
376 | enum option_type { |
377 | OPT_NONE, | |
378 | OPT_INT, | |
379 | }; | |
380 | ||
381 | static bool | |
382 | check_option(char *opt, char short_name, char *name, enum option_type type, ...) | |
383 | { | |
384 | va_list args; | |
385 | char *value = ""; | |
386 | int *number; | |
387 | ||
388 | if (opt[0] != '-') | |
389 | return FALSE; | |
390 | ||
391 | if (opt[1] == '-') { | |
392 | int namelen = strlen(name); | |
393 | ||
394 | opt += 2; | |
395 | ||
396 | if (strncmp(opt, name, namelen)) | |
397 | return FALSE; | |
398 | ||
399 | if (opt[namelen] == '=') | |
400 | value = opt + namelen + 1; | |
401 | ||
402 | } else { | |
403 | if (!short_name || opt[1] != short_name) | |
404 | return FALSE; | |
405 | value = opt + 2; | |
406 | } | |
407 | ||
408 | va_start(args, type); | |
409 | if (type == OPT_INT) { | |
410 | number = va_arg(args, int *); | |
411 | if (isdigit(*value)) | |
412 | *number = atoi(value); | |
413 | } | |
414 | va_end(args); | |
415 | ||
416 | return TRUE; | |
417 | } | |
418 | ||
b76c2afc | 419 | /* Returns the index of log or diff command or -1 to exit. */ |
8855ada4 | 420 | static bool |
b76c2afc JF |
421 | parse_options(int argc, char *argv[]) |
422 | { | |
423 | int i; | |
424 | ||
425 | for (i = 1; i < argc; i++) { | |
426 | char *opt = argv[i]; | |
427 | ||
6b161b31 | 428 | if (!strcmp(opt, "-l")) { |
4a2909a7 | 429 | opt_request = REQ_VIEW_LOG; |
6b161b31 JF |
430 | continue; |
431 | } | |
b76c2afc | 432 | |
6b161b31 | 433 | if (!strcmp(opt, "-d")) { |
4a2909a7 | 434 | opt_request = REQ_VIEW_DIFF; |
6b161b31 JF |
435 | continue; |
436 | } | |
b76c2afc | 437 | |
6dbf6c19 | 438 | if (check_option(opt, 'n', "line-number", OPT_INT, &opt_num_interval)) { |
6b161b31 JF |
439 | opt_line_number = TRUE; |
440 | continue; | |
441 | } | |
b76c2afc | 442 | |
6dbf6c19 JF |
443 | if (check_option(opt, 'b', "tab-size", OPT_INT, &opt_tab_size)) { |
444 | opt_tab_size = MIN(opt_tab_size, TABSIZE); | |
6706b2ba JF |
445 | continue; |
446 | } | |
447 | ||
6dbf6c19 | 448 | if (check_option(opt, 'v', "version", OPT_NONE)) { |
b76c2afc | 449 | printf("tig version %s\n", VERSION); |
8855ada4 | 450 | return FALSE; |
6b161b31 | 451 | } |
b76c2afc | 452 | |
6dbf6c19 | 453 | if (check_option(opt, 'h', "help", OPT_NONE)) { |
4b8c01a3 JF |
454 | printf(usage); |
455 | return FALSE; | |
456 | } | |
457 | ||
6908bdbd JF |
458 | if (!strcmp(opt, "--")) { |
459 | i++; | |
460 | break; | |
461 | } | |
03a93dbb | 462 | |
8855ada4 JF |
463 | if (!strcmp(opt, "log") || |
464 | !strcmp(opt, "diff") || | |
465 | !strcmp(opt, "show")) { | |
466 | opt_request = opt[0] == 'l' | |
467 | ? REQ_VIEW_LOG : REQ_VIEW_DIFF; | |
468 | break; | |
469 | } | |
470 | ||
03a93dbb | 471 | if (opt[0] && opt[0] != '-') |
6908bdbd | 472 | break; |
6b161b31 | 473 | |
bf174187 | 474 | die("unknown option '%s'\n\n%s", opt, usage); |
b76c2afc JF |
475 | } |
476 | ||
6908bdbd | 477 | if (!isatty(STDIN_FILENO)) { |
6908bdbd JF |
478 | opt_request = REQ_VIEW_PAGER; |
479 | opt_pipe = stdin; | |
480 | ||
481 | } else if (i < argc) { | |
482 | size_t buf_size; | |
483 | ||
6908bdbd | 484 | if (opt_request == REQ_VIEW_MAIN) |
8855ada4 JF |
485 | /* XXX: This is vulnerable to the user overriding |
486 | * options required for the main view parser. */ | |
6908bdbd JF |
487 | string_copy(opt_cmd, "git log --stat --pretty=raw"); |
488 | else | |
489 | string_copy(opt_cmd, "git"); | |
490 | buf_size = strlen(opt_cmd); | |
491 | ||
492 | while (buf_size < sizeof(opt_cmd) && i < argc) { | |
493 | opt_cmd[buf_size++] = ' '; | |
494 | buf_size = sq_quote(opt_cmd, buf_size, argv[i++]); | |
495 | } | |
496 | ||
497 | if (buf_size >= sizeof(opt_cmd)) | |
498 | die("command too long"); | |
499 | ||
500 | opt_cmd[buf_size] = 0; | |
501 | ||
502 | } | |
503 | ||
afdc35b3 JF |
504 | if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8")) |
505 | opt_utf8 = FALSE; | |
506 | ||
8855ada4 | 507 | return TRUE; |
b76c2afc JF |
508 | } |
509 | ||
510 | ||
54efb62b JF |
511 | /* |
512 | * Line-oriented content detection. | |
513 | */ | |
514 | ||
2e8488b4 | 515 | #define LINE_INFO \ |
660e09ad | 516 | LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
517 | LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
518 | LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
519 | LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \ | |
660e09ad JF |
520 | LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
521 | LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
522 | LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
523 | LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
524 | LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
525 | LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
526 | LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
527 | LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
528 | LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
529 | LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
6908bdbd | 530 | LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
8855ada4 | 531 | LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
6908bdbd JF |
532 | LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
533 | LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
8855ada4 JF |
534 | LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
535 | LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
7b99a34c | 536 | LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
537 | LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \ |
538 | LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
539 | LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
8855ada4 | 540 | LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
a28bcc22 | 541 | LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
a28bcc22 | 542 | LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
543 | LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \ |
544 | LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \ | |
545 | LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
6b161b31 JF |
546 | LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \ |
547 | LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \ | |
a28bcc22 JF |
548 | LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
549 | LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
550 | LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \ | |
c34d9c9f JF |
551 | LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
552 | LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \ | |
660e09ad | 553 | LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \ |
660e09ad | 554 | |
78c70acd | 555 | enum line_type { |
2e8488b4 JF |
556 | #define LINE(type, line, fg, bg, attr) \ |
557 | LINE_##type | |
558 | LINE_INFO | |
559 | #undef LINE | |
78c70acd JF |
560 | }; |
561 | ||
562 | struct line_info { | |
660e09ad JF |
563 | const char *name; /* Option name. */ |
564 | int namelen; /* Size of option name. */ | |
4685845e | 565 | const char *line; /* The start of line to match. */ |
2e8488b4 JF |
566 | int linelen; /* Size of string to match. */ |
567 | int fg, bg, attr; /* Color and text attributes for the lines. */ | |
78c70acd JF |
568 | }; |
569 | ||
2e8488b4 | 570 | static struct line_info line_info[] = { |
78c70acd | 571 | #define LINE(type, line, fg, bg, attr) \ |
660e09ad | 572 | { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) } |
2e8488b4 JF |
573 | LINE_INFO |
574 | #undef LINE | |
78c70acd JF |
575 | }; |
576 | ||
2e8488b4 JF |
577 | static enum line_type |
578 | get_line_type(char *line) | |
78c70acd JF |
579 | { |
580 | int linelen = strlen(line); | |
a28bcc22 | 581 | enum line_type type; |
78c70acd | 582 | |
a28bcc22 | 583 | for (type = 0; type < ARRAY_SIZE(line_info); type++) |
2e8488b4 | 584 | /* Case insensitive search matches Signed-off-by lines better. */ |
a28bcc22 JF |
585 | if (linelen >= line_info[type].linelen && |
586 | !strncasecmp(line_info[type].line, line, line_info[type].linelen)) | |
587 | return type; | |
78c70acd | 588 | |
2e8488b4 | 589 | return LINE_DEFAULT; |
78c70acd JF |
590 | } |
591 | ||
2e8488b4 | 592 | static inline int |
78c70acd JF |
593 | get_line_attr(enum line_type type) |
594 | { | |
2e8488b4 JF |
595 | assert(type < ARRAY_SIZE(line_info)); |
596 | return COLOR_PAIR(type) | line_info[type].attr; | |
78c70acd JF |
597 | } |
598 | ||
660e09ad JF |
599 | static struct line_info * |
600 | get_line_info(char *name, int namelen) | |
601 | { | |
602 | enum line_type type; | |
660e09ad JF |
603 | |
604 | for (type = 0; type < ARRAY_SIZE(line_info); type++) | |
605 | if (namelen == line_info[type].namelen && | |
201f5a18 | 606 | !string_enum_compare(line_info[type].name, name, namelen)) |
660e09ad JF |
607 | return &line_info[type]; |
608 | ||
609 | return NULL; | |
610 | } | |
611 | ||
78c70acd JF |
612 | static void |
613 | init_colors(void) | |
614 | { | |
82e78006 JF |
615 | int default_bg = COLOR_BLACK; |
616 | int default_fg = COLOR_WHITE; | |
a28bcc22 | 617 | enum line_type type; |
78c70acd JF |
618 | |
619 | start_color(); | |
620 | ||
621 | if (use_default_colors() != ERR) { | |
82e78006 JF |
622 | default_bg = -1; |
623 | default_fg = -1; | |
78c70acd JF |
624 | } |
625 | ||
a28bcc22 JF |
626 | for (type = 0; type < ARRAY_SIZE(line_info); type++) { |
627 | struct line_info *info = &line_info[type]; | |
82e78006 JF |
628 | int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg; |
629 | int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg; | |
78c70acd | 630 | |
a28bcc22 | 631 | init_pair(type, fg, bg); |
78c70acd JF |
632 | } |
633 | } | |
634 | ||
fe7233c3 JF |
635 | struct line { |
636 | enum line_type type; | |
637 | void *data; /* User data */ | |
638 | }; | |
639 | ||
78c70acd | 640 | |
1899507c | 641 | /* |
37157fa0 JF |
642 | * Keys |
643 | */ | |
644 | ||
93a97d86 | 645 | struct keybinding { |
37157fa0 | 646 | int alias; |
93a97d86 | 647 | enum request request; |
04e2b7b2 | 648 | struct keybinding *next; |
37157fa0 JF |
649 | }; |
650 | ||
93a97d86 | 651 | static struct keybinding default_keybindings[] = { |
37157fa0 JF |
652 | /* View switching */ |
653 | { 'm', REQ_VIEW_MAIN }, | |
654 | { 'd', REQ_VIEW_DIFF }, | |
655 | { 'l', REQ_VIEW_LOG }, | |
656 | { 'p', REQ_VIEW_PAGER }, | |
657 | { 'h', REQ_VIEW_HELP }, | |
658 | { '?', REQ_VIEW_HELP }, | |
659 | ||
660 | /* View manipulation */ | |
661 | { 'q', REQ_VIEW_CLOSE }, | |
662 | { KEY_TAB, REQ_VIEW_NEXT }, | |
663 | { KEY_RETURN, REQ_ENTER }, | |
664 | { KEY_UP, REQ_PREVIOUS }, | |
665 | { KEY_DOWN, REQ_NEXT }, | |
666 | ||
667 | /* Cursor navigation */ | |
668 | { 'k', REQ_MOVE_UP }, | |
669 | { 'j', REQ_MOVE_DOWN }, | |
670 | { KEY_HOME, REQ_MOVE_FIRST_LINE }, | |
671 | { KEY_END, REQ_MOVE_LAST_LINE }, | |
672 | { KEY_NPAGE, REQ_MOVE_PAGE_DOWN }, | |
673 | { ' ', REQ_MOVE_PAGE_DOWN }, | |
674 | { KEY_PPAGE, REQ_MOVE_PAGE_UP }, | |
675 | { 'b', REQ_MOVE_PAGE_UP }, | |
676 | { '-', REQ_MOVE_PAGE_UP }, | |
677 | ||
678 | /* Scrolling */ | |
679 | { KEY_IC, REQ_SCROLL_LINE_UP }, | |
680 | { KEY_DC, REQ_SCROLL_LINE_DOWN }, | |
681 | { 'w', REQ_SCROLL_PAGE_UP }, | |
682 | { 's', REQ_SCROLL_PAGE_DOWN }, | |
683 | ||
684 | /* Misc */ | |
685 | { 'Q', REQ_QUIT }, | |
686 | { 'z', REQ_STOP_LOADING }, | |
687 | { 'v', REQ_SHOW_VERSION }, | |
688 | { 'r', REQ_SCREEN_REDRAW }, | |
689 | { 'n', REQ_TOGGLE_LINENO }, | |
73fb51d5 | 690 | { 'g', REQ_TOGGLE_REV_GRAPH }, |
37157fa0 JF |
691 | { ':', REQ_PROMPT }, |
692 | ||
693 | /* wgetch() with nodelay() enabled returns ERR when there's no input. */ | |
694 | { ERR, REQ_SCREEN_UPDATE }, | |
695 | ||
696 | /* Use the ncurses SIGWINCH handler. */ | |
697 | { KEY_RESIZE, REQ_SCREEN_RESIZE }, | |
698 | }; | |
699 | ||
04e2b7b2 JF |
700 | #define KEYMAP_INFO \ |
701 | KEYMAP_(GENERIC), \ | |
702 | KEYMAP_(MAIN), \ | |
703 | KEYMAP_(DIFF), \ | |
704 | KEYMAP_(LOG), \ | |
705 | KEYMAP_(PAGER), \ | |
706 | KEYMAP_(HELP) \ | |
707 | ||
708 | enum keymap { | |
709 | #define KEYMAP_(name) KEYMAP_##name | |
710 | KEYMAP_INFO | |
711 | #undef KEYMAP_ | |
712 | }; | |
713 | ||
714 | static struct int_map keymap_table[] = { | |
715 | #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name } | |
716 | KEYMAP_INFO | |
717 | #undef KEYMAP_ | |
718 | }; | |
719 | ||
720 | #define set_keymap(map, name) \ | |
721 | set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name)) | |
722 | ||
723 | static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)]; | |
724 | ||
725 | static void | |
726 | add_keybinding(enum keymap keymap, enum request request, int key) | |
727 | { | |
728 | struct keybinding *keybinding; | |
729 | ||
730 | keybinding = calloc(1, sizeof(*keybinding)); | |
731 | if (!keybinding) | |
732 | die("Failed to allocate keybinding"); | |
733 | ||
734 | keybinding->alias = key; | |
735 | keybinding->request = request; | |
736 | keybinding->next = keybindings[keymap]; | |
737 | keybindings[keymap] = keybinding; | |
738 | } | |
739 | ||
740 | /* Looks for a key binding first in the given map, then in the generic map, and | |
741 | * lastly in the default keybindings. */ | |
37157fa0 | 742 | static enum request |
04e2b7b2 | 743 | get_keybinding(enum keymap keymap, int key) |
37157fa0 | 744 | { |
04e2b7b2 | 745 | struct keybinding *kbd; |
37157fa0 JF |
746 | int i; |
747 | ||
04e2b7b2 JF |
748 | for (kbd = keybindings[keymap]; kbd; kbd = kbd->next) |
749 | if (kbd->alias == key) | |
750 | return kbd->request; | |
751 | ||
752 | for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next) | |
753 | if (kbd->alias == key) | |
754 | return kbd->request; | |
755 | ||
93a97d86 JF |
756 | for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) |
757 | if (default_keybindings[i].alias == key) | |
758 | return default_keybindings[i].request; | |
37157fa0 JF |
759 | |
760 | return (enum request) key; | |
761 | } | |
762 | ||
93a97d86 | 763 | |
37157fa0 JF |
764 | struct key { |
765 | char *name; | |
766 | int value; | |
767 | }; | |
768 | ||
769 | static struct key key_table[] = { | |
770 | { "Enter", KEY_RETURN }, | |
771 | { "Space", ' ' }, | |
772 | { "Backspace", KEY_BACKSPACE }, | |
773 | { "Tab", KEY_TAB }, | |
774 | { "Escape", KEY_ESC }, | |
775 | { "Left", KEY_LEFT }, | |
776 | { "Right", KEY_RIGHT }, | |
777 | { "Up", KEY_UP }, | |
778 | { "Down", KEY_DOWN }, | |
779 | { "Insert", KEY_IC }, | |
780 | { "Delete", KEY_DC }, | |
74f83ee6 | 781 | { "Hash", '#' }, |
37157fa0 JF |
782 | { "Home", KEY_HOME }, |
783 | { "End", KEY_END }, | |
784 | { "PageUp", KEY_PPAGE }, | |
785 | { "PageDown", KEY_NPAGE }, | |
786 | { "F1", KEY_F(1) }, | |
787 | { "F2", KEY_F(2) }, | |
788 | { "F3", KEY_F(3) }, | |
789 | { "F4", KEY_F(4) }, | |
790 | { "F5", KEY_F(5) }, | |
791 | { "F6", KEY_F(6) }, | |
792 | { "F7", KEY_F(7) }, | |
793 | { "F8", KEY_F(8) }, | |
794 | { "F9", KEY_F(9) }, | |
795 | { "F10", KEY_F(10) }, | |
796 | { "F11", KEY_F(11) }, | |
797 | { "F12", KEY_F(12) }, | |
798 | }; | |
799 | ||
04e2b7b2 JF |
800 | static int |
801 | get_key_value(const char *name) | |
802 | { | |
803 | int i; | |
804 | ||
805 | for (i = 0; i < ARRAY_SIZE(key_table); i++) | |
806 | if (!strcasecmp(key_table[i].name, name)) | |
807 | return key_table[i].value; | |
808 | ||
809 | if (strlen(name) == 1 && isprint(*name)) | |
810 | return (int) *name; | |
811 | ||
812 | return ERR; | |
813 | } | |
814 | ||
37157fa0 JF |
815 | static char * |
816 | get_key(enum request request) | |
817 | { | |
818 | static char buf[BUFSIZ]; | |
819 | static char key_char[] = "'X'"; | |
820 | int pos = 0; | |
821 | char *sep = " "; | |
822 | int i; | |
823 | ||
824 | buf[pos] = 0; | |
825 | ||
93a97d86 JF |
826 | for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) { |
827 | struct keybinding *keybinding = &default_keybindings[i]; | |
37157fa0 JF |
828 | char *seq = NULL; |
829 | int key; | |
830 | ||
93a97d86 | 831 | if (keybinding->request != request) |
37157fa0 JF |
832 | continue; |
833 | ||
834 | for (key = 0; key < ARRAY_SIZE(key_table); key++) | |
93a97d86 | 835 | if (key_table[key].value == keybinding->alias) |
37157fa0 JF |
836 | seq = key_table[key].name; |
837 | ||
838 | if (seq == NULL && | |
93a97d86 JF |
839 | keybinding->alias < 127 && |
840 | isprint(keybinding->alias)) { | |
841 | key_char[1] = (char) keybinding->alias; | |
37157fa0 JF |
842 | seq = key_char; |
843 | } | |
844 | ||
845 | if (!seq) | |
846 | seq = "'?'"; | |
847 | ||
848 | if (!string_format_from(buf, &pos, "%s%s", sep, seq)) | |
849 | return "Too many keybindings!"; | |
850 | sep = ", "; | |
851 | } | |
852 | ||
853 | return buf; | |
854 | } | |
855 | ||
856 | ||
857 | /* | |
1899507c JF |
858 | * User config file handling. |
859 | */ | |
860 | ||
5dc795f2 JF |
861 | static struct int_map color_map[] = { |
862 | #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name } | |
863 | COLOR_MAP(DEFAULT), | |
864 | COLOR_MAP(BLACK), | |
865 | COLOR_MAP(BLUE), | |
866 | COLOR_MAP(CYAN), | |
867 | COLOR_MAP(GREEN), | |
868 | COLOR_MAP(MAGENTA), | |
869 | COLOR_MAP(RED), | |
870 | COLOR_MAP(WHITE), | |
871 | COLOR_MAP(YELLOW), | |
872 | }; | |
873 | ||
9256ab05 JF |
874 | #define set_color(color, name) \ |
875 | set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name)) | |
660e09ad | 876 | |
5dc795f2 JF |
877 | static struct int_map attr_map[] = { |
878 | #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name } | |
879 | ATTR_MAP(NORMAL), | |
880 | ATTR_MAP(BLINK), | |
881 | ATTR_MAP(BOLD), | |
882 | ATTR_MAP(DIM), | |
883 | ATTR_MAP(REVERSE), | |
884 | ATTR_MAP(STANDOUT), | |
885 | ATTR_MAP(UNDERLINE), | |
886 | }; | |
887 | ||
9256ab05 JF |
888 | #define set_attribute(attr, name) \ |
889 | set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name)) | |
660e09ad | 890 | |
3c3801c2 JF |
891 | static int config_lineno; |
892 | static bool config_errors; | |
893 | static char *config_msg; | |
894 | ||
5bfd96c7 | 895 | /* Wants: object fgcolor bgcolor [attr] */ |
660e09ad | 896 | static int |
5bfd96c7 | 897 | option_color_command(int argc, char *argv[]) |
660e09ad | 898 | { |
bca8fcaa JF |
899 | struct line_info *info; |
900 | ||
9256ab05 JF |
901 | if (argc != 3 && argc != 4) { |
902 | config_msg = "Wrong number of arguments given to color command"; | |
903 | return ERR; | |
904 | } | |
905 | ||
906 | info = get_line_info(argv[0], strlen(argv[0])); | |
bca8fcaa JF |
907 | if (!info) { |
908 | config_msg = "Unknown color name"; | |
909 | return ERR; | |
910 | } | |
660e09ad | 911 | |
a3653368 JF |
912 | if (set_color(&info->fg, argv[1]) == ERR || |
913 | set_color(&info->bg, argv[2]) == ERR) { | |
bca8fcaa JF |
914 | config_msg = "Unknown color"; |
915 | return ERR; | |
916 | } | |
660e09ad | 917 | |
9256ab05 | 918 | if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) { |
bca8fcaa JF |
919 | config_msg = "Unknown attribute"; |
920 | return ERR; | |
660e09ad JF |
921 | } |
922 | ||
bca8fcaa JF |
923 | return OK; |
924 | } | |
925 | ||
5bfd96c7 JF |
926 | /* Wants: name = value */ |
927 | static int | |
928 | option_set_command(int argc, char *argv[]) | |
929 | { | |
930 | if (argc != 3) { | |
931 | config_msg = "Wrong number of arguments given to set command"; | |
932 | return ERR; | |
933 | } | |
934 | ||
935 | if (strcmp(argv[1], "=")) { | |
936 | config_msg = "No value assigned"; | |
937 | return ERR; | |
938 | } | |
939 | ||
940 | if (!strcmp(argv[0], "show-rev-graph")) { | |
941 | opt_rev_graph = (!strcmp(argv[2], "1") || | |
942 | !strcmp(argv[2], "true") || | |
943 | !strcmp(argv[2], "yes")); | |
944 | return OK; | |
945 | } | |
946 | ||
947 | if (!strcmp(argv[0], "line-number-interval")) { | |
948 | opt_num_interval = atoi(argv[2]); | |
949 | return OK; | |
950 | } | |
951 | ||
952 | if (!strcmp(argv[0], "tab-size")) { | |
953 | opt_tab_size = atoi(argv[2]); | |
954 | return OK; | |
955 | } | |
956 | ||
cb7267ee | 957 | if (!strcmp(argv[0], "commit-encoding")) { |
3cc9a4d4 JF |
958 | char *arg = argv[2]; |
959 | int delimiter = *arg; | |
960 | int i; | |
961 | ||
962 | switch (delimiter) { | |
963 | case '"': | |
964 | case '\'': | |
965 | for (arg++, i = 0; arg[i]; i++) | |
966 | if (arg[i] == delimiter) { | |
967 | arg[i] = 0; | |
968 | break; | |
969 | } | |
970 | default: | |
971 | string_copy(opt_encoding, arg); | |
972 | return OK; | |
973 | } | |
5bfd96c7 JF |
974 | } |
975 | ||
a3653368 | 976 | config_msg = "Unknown variable name"; |
5bfd96c7 JF |
977 | return ERR; |
978 | } | |
979 | ||
04e2b7b2 JF |
980 | /* Wants: mode request key */ |
981 | static int | |
982 | option_bind_command(int argc, char *argv[]) | |
983 | { | |
984 | enum request request; | |
985 | int keymap; | |
986 | int key; | |
987 | ||
988 | if (argc != 3) { | |
989 | config_msg = "Wrong number of arguments given to bind command"; | |
990 | return ERR; | |
991 | } | |
992 | ||
993 | if (set_keymap(&keymap, argv[0]) == ERR) { | |
994 | config_msg = "Unknown key map"; | |
995 | return ERR; | |
996 | } | |
997 | ||
998 | key = get_key_value(argv[1]); | |
999 | if (key == ERR) { | |
1000 | config_msg = "Unknown key"; | |
1001 | return ERR; | |
1002 | } | |
1003 | ||
1004 | request = get_request(argv[2]); | |
1005 | if (request == REQ_UNKNOWN) { | |
1006 | config_msg = "Unknown request name"; | |
1007 | return ERR; | |
1008 | } | |
1009 | ||
1010 | add_keybinding(keymap, request, key); | |
1011 | ||
1012 | return OK; | |
1013 | } | |
1014 | ||
bca8fcaa | 1015 | static int |
9256ab05 | 1016 | set_option(char *opt, char *value) |
bca8fcaa | 1017 | { |
9256ab05 JF |
1018 | char *argv[16]; |
1019 | int valuelen; | |
1020 | int argc = 0; | |
1021 | ||
1022 | /* Tokenize */ | |
1023 | while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) { | |
1024 | argv[argc++] = value; | |
1025 | ||
1026 | value += valuelen; | |
1027 | if (!*value) | |
1028 | break; | |
1029 | ||
1030 | *value++ = 0; | |
1031 | while (isspace(*value)) | |
1032 | value++; | |
1033 | } | |
1034 | ||
1035 | if (!strcmp(opt, "color")) | |
5bfd96c7 JF |
1036 | return option_color_command(argc, argv); |
1037 | ||
1038 | if (!strcmp(opt, "set")) | |
1039 | return option_set_command(argc, argv); | |
bca8fcaa | 1040 | |
04e2b7b2 JF |
1041 | if (!strcmp(opt, "bind")) |
1042 | return option_bind_command(argc, argv); | |
1043 | ||
a3653368 | 1044 | config_msg = "Unknown option command"; |
660e09ad JF |
1045 | return ERR; |
1046 | } | |
1047 | ||
1048 | static int | |
3c3801c2 JF |
1049 | read_option(char *opt, int optlen, char *value, int valuelen) |
1050 | { | |
a3653368 JF |
1051 | int status = OK; |
1052 | ||
3c3801c2 JF |
1053 | config_lineno++; |
1054 | config_msg = "Internal error"; | |
1055 | ||
a3653368 JF |
1056 | /* Check for comment markers, since read_properties() will |
1057 | * only ensure opt and value are split at first " \t". */ | |
74f83ee6 | 1058 | optlen = strcspn(opt, "#"); |
a3653368 | 1059 | if (optlen == 0) |
3c3801c2 JF |
1060 | return OK; |
1061 | ||
a3653368 JF |
1062 | if (opt[optlen] != 0) { |
1063 | config_msg = "No option value"; | |
1064 | status = ERR; | |
1065 | ||
1066 | } else { | |
1067 | /* Look for comment endings in the value. */ | |
74f83ee6 | 1068 | int len = strcspn(value, "#"); |
a3653368 JF |
1069 | |
1070 | if (len < valuelen) { | |
1071 | valuelen = len; | |
1072 | value[valuelen] = 0; | |
1073 | } | |
1074 | ||
1075 | status = set_option(opt, value); | |
3c3801c2 JF |
1076 | } |
1077 | ||
a3653368 JF |
1078 | if (status == ERR) { |
1079 | fprintf(stderr, "Error on line %d, near '%.*s': %s\n", | |
3c3801c2 JF |
1080 | config_lineno, optlen, opt, config_msg); |
1081 | config_errors = TRUE; | |
1082 | } | |
1083 | ||
1084 | /* Always keep going if errors are encountered. */ | |
1085 | return OK; | |
1086 | } | |
1087 | ||
1088 | static int | |
660e09ad JF |
1089 | load_options(void) |
1090 | { | |
1091 | char *home = getenv("HOME"); | |
1092 | char buf[1024]; | |
1093 | FILE *file; | |
1094 | ||
3c3801c2 JF |
1095 | config_lineno = 0; |
1096 | config_errors = FALSE; | |
1097 | ||
cc2d1364 | 1098 | if (!home || !string_format(buf, "%s/.tigrc", home)) |
660e09ad JF |
1099 | return ERR; |
1100 | ||
1101 | /* It's ok that the file doesn't exist. */ | |
1102 | file = fopen(buf, "r"); | |
1103 | if (!file) | |
1104 | return OK; | |
1105 | ||
3c3801c2 JF |
1106 | if (read_properties(file, " \t", read_option) == ERR || |
1107 | config_errors == TRUE) | |
1108 | fprintf(stderr, "Errors while loading %s.\n", buf); | |
1109 | ||
1110 | return OK; | |
660e09ad JF |
1111 | } |
1112 | ||
1113 | ||
d839253b | 1114 | /* |
468876c9 | 1115 | * The viewer |
d839253b | 1116 | */ |
c2124ccd JF |
1117 | |
1118 | struct view; | |
fe7233c3 | 1119 | struct view_ops; |
c2124ccd JF |
1120 | |
1121 | /* The display array of active views and the index of the current view. */ | |
1122 | static struct view *display[2]; | |
1123 | static unsigned int current_view; | |
1124 | ||
1125 | #define foreach_view(view, i) \ | |
1126 | for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++) | |
1127 | ||
9f41488f | 1128 | #define displayed_views() (display[1] != NULL ? 2 : 1) |
c2124ccd | 1129 | |
d839253b | 1130 | /* Current head and commit ID */ |
c2124ccd JF |
1131 | static char ref_commit[SIZEOF_REF] = "HEAD"; |
1132 | static char ref_head[SIZEOF_REF] = "HEAD"; | |
1133 | ||
b801d8b2 | 1134 | struct view { |
03a93dbb | 1135 | const char *name; /* View name */ |
4685845e TH |
1136 | const char *cmd_fmt; /* Default command line format */ |
1137 | const char *cmd_env; /* Command line set via environment */ | |
1138 | const char *id; /* Points to either of ref_{head,commit} */ | |
6b161b31 | 1139 | |
fe7233c3 | 1140 | struct view_ops *ops; /* View operations */ |
22f66b0a | 1141 | |
04e2b7b2 JF |
1142 | enum keymap keymap; /* What keymap does this view have */ |
1143 | ||
03a93dbb | 1144 | char cmd[SIZEOF_CMD]; /* Command buffer */ |
49f2b43f JF |
1145 | char ref[SIZEOF_REF]; /* Hovered commit reference */ |
1146 | char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */ | |
2e8488b4 | 1147 | |
8855ada4 JF |
1148 | int height, width; /* The width and height of the main window */ |
1149 | WINDOW *win; /* The main window */ | |
1150 | WINDOW *title; /* The title window living below the main window */ | |
b801d8b2 JF |
1151 | |
1152 | /* Navigation */ | |
1153 | unsigned long offset; /* Offset of the window top */ | |
1154 | unsigned long lineno; /* Current line number */ | |
1155 | ||
f6da0b66 JF |
1156 | /* If non-NULL, points to the view that opened this view. If this view |
1157 | * is closed tig will switch back to the parent view. */ | |
1158 | struct view *parent; | |
1159 | ||
b801d8b2 JF |
1160 | /* Buffering */ |
1161 | unsigned long lines; /* Total number of lines */ | |
fe7233c3 | 1162 | struct line *line; /* Line index */ |
e2c01617 | 1163 | unsigned long line_size;/* Total number of allocated lines */ |
8855ada4 | 1164 | unsigned int digits; /* Number of digits in the lines member. */ |
b801d8b2 JF |
1165 | |
1166 | /* Loading */ | |
1167 | FILE *pipe; | |
2e8488b4 | 1168 | time_t start_time; |
b801d8b2 JF |
1169 | }; |
1170 | ||
fe7233c3 JF |
1171 | struct view_ops { |
1172 | /* What type of content being displayed. Used in the title bar. */ | |
1173 | const char *type; | |
1174 | /* Draw one line; @lineno must be < view->height. */ | |
1175 | bool (*draw)(struct view *view, struct line *line, unsigned int lineno); | |
1176 | /* Read one line; updates view->line. */ | |
701e4f5d | 1177 | bool (*read)(struct view *view, char *data); |
fe7233c3 JF |
1178 | /* Depending on view, change display based on current line. */ |
1179 | bool (*enter)(struct view *view, struct line *line); | |
1180 | }; | |
1181 | ||
6b161b31 JF |
1182 | static struct view_ops pager_ops; |
1183 | static struct view_ops main_ops; | |
a28bcc22 | 1184 | |
04e2b7b2 JF |
1185 | #define VIEW_STR(name, cmd, env, ref, ops, map) \ |
1186 | { name, cmd, #env, ref, ops, map} | |
1ba2ae4b | 1187 | |
95d7ddcd | 1188 | #define VIEW_(id, name, ops, ref) \ |
04e2b7b2 | 1189 | VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id) |
1ba2ae4b | 1190 | |
c2124ccd | 1191 | |
b801d8b2 | 1192 | static struct view views[] = { |
95d7ddcd JF |
1193 | VIEW_(MAIN, "main", &main_ops, ref_head), |
1194 | VIEW_(DIFF, "diff", &pager_ops, ref_commit), | |
1195 | VIEW_(LOG, "log", &pager_ops, ref_head), | |
1196 | VIEW_(HELP, "help", &pager_ops, "static"), | |
1197 | VIEW_(PAGER, "pager", &pager_ops, "static"), | |
b801d8b2 JF |
1198 | }; |
1199 | ||
a28bcc22 JF |
1200 | #define VIEW(req) (&views[(req) - REQ_OFFSET - 1]) |
1201 | ||
4c6fabc2 | 1202 | |
fe7233c3 JF |
1203 | static bool |
1204 | draw_view_line(struct view *view, unsigned int lineno) | |
1205 | { | |
1206 | if (view->offset + lineno >= view->lines) | |
1207 | return FALSE; | |
1208 | ||
1209 | return view->ops->draw(view, &view->line[view->offset + lineno], lineno); | |
1210 | } | |
1211 | ||
b801d8b2 | 1212 | static void |
82e78006 | 1213 | redraw_view_from(struct view *view, int lineno) |
b801d8b2 | 1214 | { |
82e78006 | 1215 | assert(0 <= lineno && lineno < view->height); |
b801d8b2 | 1216 | |
82e78006 | 1217 | for (; lineno < view->height; lineno++) { |
fe7233c3 | 1218 | if (!draw_view_line(view, lineno)) |
fd85fef1 | 1219 | break; |
b801d8b2 JF |
1220 | } |
1221 | ||
1222 | redrawwin(view->win); | |
1223 | wrefresh(view->win); | |
1224 | } | |
1225 | ||
b76c2afc | 1226 | static void |
82e78006 JF |
1227 | redraw_view(struct view *view) |
1228 | { | |
1229 | wclear(view->win); | |
1230 | redraw_view_from(view, 0); | |
1231 | } | |
1232 | ||
c2124ccd | 1233 | |
6b161b31 | 1234 | static void |
81030ec8 JF |
1235 | update_view_title(struct view *view) |
1236 | { | |
1237 | if (view == display[current_view]) | |
1238 | wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS)); | |
1239 | else | |
1240 | wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR)); | |
1241 | ||
1242 | werase(view->title); | |
1243 | wmove(view->title, 0, 0); | |
1244 | ||
81030ec8 JF |
1245 | if (*view->ref) |
1246 | wprintw(view->title, "[%s] %s", view->name, view->ref); | |
1247 | else | |
1248 | wprintw(view->title, "[%s]", view->name); | |
1249 | ||
c19f8017 | 1250 | if (view->lines || view->pipe) { |
6d9c07af | 1251 | unsigned int view_lines = view->offset + view->height; |
c19f8017 | 1252 | unsigned int lines = view->lines |
6d9c07af | 1253 | ? MIN(view_lines, view->lines) * 100 / view->lines |
c19f8017 JF |
1254 | : 0; |
1255 | ||
81030ec8 JF |
1256 | wprintw(view->title, " - %s %d of %d (%d%%)", |
1257 | view->ops->type, | |
1258 | view->lineno + 1, | |
1259 | view->lines, | |
c19f8017 | 1260 | lines); |
81030ec8 JF |
1261 | } |
1262 | ||
f97f4012 JF |
1263 | if (view->pipe) { |
1264 | time_t secs = time(NULL) - view->start_time; | |
1265 | ||
1266 | /* Three git seconds are a long time ... */ | |
1267 | if (secs > 2) | |
1268 | wprintw(view->title, " %lds", secs); | |
1269 | } | |
1270 | ||
976447f8 | 1271 | wmove(view->title, 0, view->width - 1); |
81030ec8 JF |
1272 | wrefresh(view->title); |
1273 | } | |
1274 | ||
1275 | static void | |
6b161b31 | 1276 | resize_display(void) |
b76c2afc | 1277 | { |
03a93dbb | 1278 | int offset, i; |
6b161b31 JF |
1279 | struct view *base = display[0]; |
1280 | struct view *view = display[1] ? display[1] : display[0]; | |
b76c2afc | 1281 | |
6b161b31 | 1282 | /* Setup window dimensions */ |
b76c2afc | 1283 | |
03a93dbb | 1284 | getmaxyx(stdscr, base->height, base->width); |
b76c2afc | 1285 | |
6b161b31 | 1286 | /* Make room for the status window. */ |
03a93dbb | 1287 | base->height -= 1; |
6b161b31 JF |
1288 | |
1289 | if (view != base) { | |
03a93dbb JF |
1290 | /* Horizontal split. */ |
1291 | view->width = base->width; | |
6b161b31 JF |
1292 | view->height = SCALE_SPLIT_VIEW(base->height); |
1293 | base->height -= view->height; | |
1294 | ||
1295 | /* Make room for the title bar. */ | |
1296 | view->height -= 1; | |
1297 | } | |
1298 | ||
1299 | /* Make room for the title bar. */ | |
1300 | base->height -= 1; | |
1301 | ||
1302 | offset = 0; | |
1303 | ||
1304 | foreach_view (view, i) { | |
b76c2afc | 1305 | if (!view->win) { |
c19f8017 | 1306 | view->win = newwin(view->height, 0, offset, 0); |
6b161b31 JF |
1307 | if (!view->win) |
1308 | die("Failed to create %s view", view->name); | |
1309 | ||
1310 | scrollok(view->win, TRUE); | |
1311 | ||
1312 | view->title = newwin(1, 0, offset + view->height, 0); | |
1313 | if (!view->title) | |
1314 | die("Failed to create title window"); | |
1315 | ||
1316 | } else { | |
c19f8017 | 1317 | wresize(view->win, view->height, view->width); |
6b161b31 JF |
1318 | mvwin(view->win, offset, 0); |
1319 | mvwin(view->title, offset + view->height, 0); | |
a28bcc22 | 1320 | } |
a28bcc22 | 1321 | |
6b161b31 | 1322 | offset += view->height + 1; |
b76c2afc | 1323 | } |
6b161b31 | 1324 | } |
b76c2afc | 1325 | |
6b161b31 | 1326 | static void |
20bb5e18 JF |
1327 | redraw_display(void) |
1328 | { | |
1329 | struct view *view; | |
1330 | int i; | |
1331 | ||
1332 | foreach_view (view, i) { | |
1333 | redraw_view(view); | |
1334 | update_view_title(view); | |
1335 | } | |
1336 | } | |
1337 | ||
85af6284 JF |
1338 | static void |
1339 | update_display_cursor(void) | |
1340 | { | |
1341 | struct view *view = display[current_view]; | |
1342 | ||
1343 | /* Move the cursor to the right-most column of the cursor line. | |
1344 | * | |
1345 | * XXX: This could turn out to be a bit expensive, but it ensures that | |
1346 | * the cursor does not jump around. */ | |
1347 | if (view->lines) { | |
1348 | wmove(view->win, view->lineno - view->offset, view->width - 1); | |
1349 | wrefresh(view->win); | |
1350 | } | |
1351 | } | |
20bb5e18 | 1352 | |
2e8488b4 JF |
1353 | /* |
1354 | * Navigation | |
1355 | */ | |
1356 | ||
4a2909a7 | 1357 | /* Scrolling backend */ |
b801d8b2 | 1358 | static void |
b3a54cba | 1359 | do_scroll_view(struct view *view, int lines, bool redraw) |
b801d8b2 | 1360 | { |
fd85fef1 JF |
1361 | /* The rendering expects the new offset. */ |
1362 | view->offset += lines; | |
1363 | ||
1364 | assert(0 <= view->offset && view->offset < view->lines); | |
1365 | assert(lines); | |
b801d8b2 | 1366 | |
82e78006 | 1367 | /* Redraw the whole screen if scrolling is pointless. */ |
4c6fabc2 | 1368 | if (view->height < ABS(lines)) { |
b76c2afc JF |
1369 | redraw_view(view); |
1370 | ||
1371 | } else { | |
22f66b0a | 1372 | int line = lines > 0 ? view->height - lines : 0; |
82e78006 | 1373 | int end = line + ABS(lines); |
fd85fef1 JF |
1374 | |
1375 | wscrl(view->win, lines); | |
1376 | ||
22f66b0a | 1377 | for (; line < end; line++) { |
fe7233c3 | 1378 | if (!draw_view_line(view, line)) |
fd85fef1 JF |
1379 | break; |
1380 | } | |
1381 | } | |
1382 | ||
1383 | /* Move current line into the view. */ | |
1384 | if (view->lineno < view->offset) { | |
1385 | view->lineno = view->offset; | |
fe7233c3 | 1386 | draw_view_line(view, 0); |
fd85fef1 JF |
1387 | |
1388 | } else if (view->lineno >= view->offset + view->height) { | |
6706b2ba JF |
1389 | if (view->lineno == view->offset + view->height) { |
1390 | /* Clear the hidden line so it doesn't show if the view | |
1391 | * is scrolled up. */ | |
1392 | wmove(view->win, view->height, 0); | |
1393 | wclrtoeol(view->win); | |
1394 | } | |
fd85fef1 | 1395 | view->lineno = view->offset + view->height - 1; |
fe7233c3 | 1396 | draw_view_line(view, view->lineno - view->offset); |
fd85fef1 JF |
1397 | } |
1398 | ||
4c6fabc2 | 1399 | assert(view->offset <= view->lineno && view->lineno < view->lines); |
fd85fef1 | 1400 | |
b3a54cba JF |
1401 | if (!redraw) |
1402 | return; | |
1403 | ||
fd85fef1 JF |
1404 | redrawwin(view->win); |
1405 | wrefresh(view->win); | |
9d3f5834 | 1406 | report(""); |
fd85fef1 | 1407 | } |
78c70acd | 1408 | |
4a2909a7 | 1409 | /* Scroll frontend */ |
fd85fef1 | 1410 | static void |
6b161b31 | 1411 | scroll_view(struct view *view, enum request request) |
fd85fef1 JF |
1412 | { |
1413 | int lines = 1; | |
b801d8b2 JF |
1414 | |
1415 | switch (request) { | |
4a2909a7 | 1416 | case REQ_SCROLL_PAGE_DOWN: |
fd85fef1 | 1417 | lines = view->height; |
4a2909a7 | 1418 | case REQ_SCROLL_LINE_DOWN: |
b801d8b2 | 1419 | if (view->offset + lines > view->lines) |
bde3653a | 1420 | lines = view->lines - view->offset; |
b801d8b2 | 1421 | |
fd85fef1 | 1422 | if (lines == 0 || view->offset + view->height >= view->lines) { |
eb98559e | 1423 | report("Cannot scroll beyond the last line"); |
b801d8b2 JF |
1424 | return; |
1425 | } | |
1426 | break; | |
1427 | ||
4a2909a7 | 1428 | case REQ_SCROLL_PAGE_UP: |
fd85fef1 | 1429 | lines = view->height; |
4a2909a7 | 1430 | case REQ_SCROLL_LINE_UP: |
b801d8b2 JF |
1431 | if (lines > view->offset) |
1432 | lines = view->offset; | |
1433 | ||
1434 | if (lines == 0) { | |
eb98559e | 1435 | report("Cannot scroll beyond the first line"); |
b801d8b2 JF |
1436 | return; |
1437 | } | |
1438 | ||
fd85fef1 | 1439 | lines = -lines; |
b801d8b2 | 1440 | break; |
03a93dbb | 1441 | |
6b161b31 JF |
1442 | default: |
1443 | die("request %d not handled in switch", request); | |
b801d8b2 JF |
1444 | } |
1445 | ||
b3a54cba | 1446 | do_scroll_view(view, lines, TRUE); |
fd85fef1 | 1447 | } |
b801d8b2 | 1448 | |
4a2909a7 | 1449 | /* Cursor moving */ |
fd85fef1 | 1450 | static void |
b3a54cba | 1451 | move_view(struct view *view, enum request request, bool redraw) |
fd85fef1 JF |
1452 | { |
1453 | int steps; | |
b801d8b2 | 1454 | |
fd85fef1 | 1455 | switch (request) { |
4a2909a7 | 1456 | case REQ_MOVE_FIRST_LINE: |
78c70acd JF |
1457 | steps = -view->lineno; |
1458 | break; | |
1459 | ||
4a2909a7 | 1460 | case REQ_MOVE_LAST_LINE: |
78c70acd JF |
1461 | steps = view->lines - view->lineno - 1; |
1462 | break; | |
1463 | ||
4a2909a7 | 1464 | case REQ_MOVE_PAGE_UP: |
78c70acd JF |
1465 | steps = view->height > view->lineno |
1466 | ? -view->lineno : -view->height; | |
1467 | break; | |
1468 | ||
4a2909a7 | 1469 | case REQ_MOVE_PAGE_DOWN: |
78c70acd JF |
1470 | steps = view->lineno + view->height >= view->lines |
1471 | ? view->lines - view->lineno - 1 : view->height; | |
1472 | break; | |
1473 | ||
4a2909a7 | 1474 | case REQ_MOVE_UP: |
fd85fef1 JF |
1475 | steps = -1; |
1476 | break; | |
b801d8b2 | 1477 | |
4a2909a7 | 1478 | case REQ_MOVE_DOWN: |
fd85fef1 JF |
1479 | steps = 1; |
1480 | break; | |
6b161b31 JF |
1481 | |
1482 | default: | |
1483 | die("request %d not handled in switch", request); | |
78c70acd | 1484 | } |
b801d8b2 | 1485 | |
4c6fabc2 | 1486 | if (steps <= 0 && view->lineno == 0) { |
eb98559e | 1487 | report("Cannot move beyond the first line"); |
78c70acd | 1488 | return; |
b801d8b2 | 1489 | |
6908bdbd | 1490 | } else if (steps >= 0 && view->lineno + 1 >= view->lines) { |
eb98559e | 1491 | report("Cannot move beyond the last line"); |
78c70acd | 1492 | return; |
fd85fef1 JF |
1493 | } |
1494 | ||
4c6fabc2 | 1495 | /* Move the current line */ |
fd85fef1 | 1496 | view->lineno += steps; |
4c6fabc2 JF |
1497 | assert(0 <= view->lineno && view->lineno < view->lines); |
1498 | ||
1499 | /* Repaint the old "current" line if we be scrolling */ | |
2e8488b4 JF |
1500 | if (ABS(steps) < view->height) { |
1501 | int prev_lineno = view->lineno - steps - view->offset; | |
1502 | ||
1503 | wmove(view->win, prev_lineno, 0); | |
1504 | wclrtoeol(view->win); | |
fe7233c3 | 1505 | draw_view_line(view, prev_lineno); |
2e8488b4 | 1506 | } |
fd85fef1 | 1507 | |
4c6fabc2 | 1508 | /* Check whether the view needs to be scrolled */ |
fd85fef1 JF |
1509 | if (view->lineno < view->offset || |
1510 | view->lineno >= view->offset + view->height) { | |
1511 | if (steps < 0 && -steps > view->offset) { | |
1512 | steps = -view->offset; | |
b76c2afc JF |
1513 | |
1514 | } else if (steps > 0) { | |
1515 | if (view->lineno == view->lines - 1 && | |
1516 | view->lines > view->height) { | |
1517 | steps = view->lines - view->offset - 1; | |
1518 | if (steps >= view->height) | |
1519 | steps -= view->height - 1; | |
1520 | } | |
b801d8b2 | 1521 | } |
78c70acd | 1522 | |
b3a54cba | 1523 | do_scroll_view(view, steps, redraw); |
fd85fef1 | 1524 | return; |
b801d8b2 JF |
1525 | } |
1526 | ||
4c6fabc2 | 1527 | /* Draw the current line */ |
fe7233c3 | 1528 | draw_view_line(view, view->lineno - view->offset); |
fd85fef1 | 1529 | |
b3a54cba JF |
1530 | if (!redraw) |
1531 | return; | |
1532 | ||
b801d8b2 JF |
1533 | redrawwin(view->win); |
1534 | wrefresh(view->win); | |
9d3f5834 | 1535 | report(""); |
b801d8b2 JF |
1536 | } |
1537 | ||
b801d8b2 | 1538 | |
2e8488b4 JF |
1539 | /* |
1540 | * Incremental updating | |
1541 | */ | |
b801d8b2 | 1542 | |
199d1288 JF |
1543 | static void |
1544 | end_update(struct view *view) | |
1545 | { | |
1546 | if (!view->pipe) | |
1547 | return; | |
1548 | set_nonblocking_input(FALSE); | |
1549 | if (view->pipe == stdin) | |
1550 | fclose(view->pipe); | |
1551 | else | |
1552 | pclose(view->pipe); | |
1553 | view->pipe = NULL; | |
1554 | } | |
1555 | ||
03a93dbb | 1556 | static bool |
b801d8b2 JF |
1557 | begin_update(struct view *view) |
1558 | { | |
4685845e | 1559 | const char *id = view->id; |
fd85fef1 | 1560 | |
199d1288 JF |
1561 | if (view->pipe) |
1562 | end_update(view); | |
1563 | ||
03a93dbb JF |
1564 | if (opt_cmd[0]) { |
1565 | string_copy(view->cmd, opt_cmd); | |
1566 | opt_cmd[0] = 0; | |
8855ada4 JF |
1567 | /* When running random commands, the view ref could have become |
1568 | * invalid so clear it. */ | |
1569 | view->ref[0] = 0; | |
03a93dbb | 1570 | } else { |
4685845e | 1571 | const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt; |
1ba2ae4b | 1572 | |
cc2d1364 | 1573 | if (!string_format(view->cmd, format, id, id, id, id, id)) |
03a93dbb JF |
1574 | return FALSE; |
1575 | } | |
b801d8b2 | 1576 | |
6908bdbd JF |
1577 | /* Special case for the pager view. */ |
1578 | if (opt_pipe) { | |
1579 | view->pipe = opt_pipe; | |
1580 | opt_pipe = NULL; | |
1581 | } else { | |
1582 | view->pipe = popen(view->cmd, "r"); | |
1583 | } | |
1584 | ||
2e8488b4 JF |
1585 | if (!view->pipe) |
1586 | return FALSE; | |
b801d8b2 | 1587 | |
6b161b31 | 1588 | set_nonblocking_input(TRUE); |
b801d8b2 JF |
1589 | |
1590 | view->offset = 0; | |
1591 | view->lines = 0; | |
1592 | view->lineno = 0; | |
49f2b43f | 1593 | string_copy(view->vid, id); |
b801d8b2 | 1594 | |
2e8488b4 JF |
1595 | if (view->line) { |
1596 | int i; | |
1597 | ||
1598 | for (i = 0; i < view->lines; i++) | |
fe7233c3 JF |
1599 | if (view->line[i].data) |
1600 | free(view->line[i].data); | |
2e8488b4 JF |
1601 | |
1602 | free(view->line); | |
1603 | view->line = NULL; | |
1604 | } | |
1605 | ||
1606 | view->start_time = time(NULL); | |
1607 | ||
b801d8b2 JF |
1608 | return TRUE; |
1609 | } | |
1610 | ||
e2c01617 JF |
1611 | static struct line * |
1612 | realloc_lines(struct view *view, size_t line_size) | |
1613 | { | |
1614 | struct line *tmp = realloc(view->line, sizeof(*view->line) * line_size); | |
1615 | ||
1616 | if (!tmp) | |
1617 | return NULL; | |
1618 | ||
1619 | view->line = tmp; | |
1620 | view->line_size = line_size; | |
1621 | return view->line; | |
1622 | } | |
1623 | ||
03a93dbb | 1624 | static bool |
b801d8b2 JF |
1625 | update_view(struct view *view) |
1626 | { | |
6b68fd24 JF |
1627 | char in_buffer[BUFSIZ]; |
1628 | char out_buffer[BUFSIZ * 2]; | |
b801d8b2 | 1629 | char *line; |
82e78006 JF |
1630 | /* The number of lines to read. If too low it will cause too much |
1631 | * redrawing (and possible flickering), if too high responsiveness | |
1632 | * will suffer. */ | |
8855ada4 | 1633 | unsigned long lines = view->height; |
82e78006 | 1634 | int redraw_from = -1; |
b801d8b2 JF |
1635 | |
1636 | if (!view->pipe) | |
1637 | return TRUE; | |
1638 | ||
82e78006 JF |
1639 | /* Only redraw if lines are visible. */ |
1640 | if (view->offset + view->height >= view->lines) | |
1641 | redraw_from = view->lines - view->offset; | |
b801d8b2 | 1642 | |
e2c01617 | 1643 | if (!realloc_lines(view, view->lines + lines)) |
b801d8b2 JF |
1644 | goto alloc_error; |
1645 | ||
6b68fd24 JF |
1646 | while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) { |
1647 | size_t linelen = strlen(line); | |
b801d8b2 | 1648 | |
b801d8b2 JF |
1649 | if (linelen) |
1650 | line[linelen - 1] = 0; | |
1651 | ||
6b68fd24 JF |
1652 | if (opt_iconv != ICONV_NONE) { |
1653 | char *inbuf = line; | |
1654 | size_t inlen = linelen; | |
1655 | ||
1656 | char *outbuf = out_buffer; | |
1657 | size_t outlen = sizeof(out_buffer); | |
1658 | ||
1659 | size_t ret; | |
1660 | ||
1661 | ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen); | |
1662 | if (ret != (size_t) -1) { | |
1663 | line = out_buffer; | |
1664 | linelen = strlen(out_buffer); | |
1665 | } | |
1666 | } | |
1667 | ||
701e4f5d | 1668 | if (!view->ops->read(view, line)) |
b801d8b2 | 1669 | goto alloc_error; |
fd85fef1 JF |
1670 | |
1671 | if (lines-- == 1) | |
1672 | break; | |
b801d8b2 JF |
1673 | } |
1674 | ||
8855ada4 JF |
1675 | { |
1676 | int digits; | |
1677 | ||
1678 | lines = view->lines; | |
1679 | for (digits = 0; lines; digits++) | |
1680 | lines /= 10; | |
1681 | ||
1682 | /* Keep the displayed view in sync with line number scaling. */ | |
1683 | if (digits != view->digits) { | |
1684 | view->digits = digits; | |
1685 | redraw_from = 0; | |
1686 | } | |
1687 | } | |
1688 | ||
82e78006 JF |
1689 | if (redraw_from >= 0) { |
1690 | /* If this is an incremental update, redraw the previous line | |
a28bcc22 JF |
1691 | * since for commits some members could have changed when |
1692 | * loading the main view. */ | |
82e78006 JF |
1693 | if (redraw_from > 0) |
1694 | redraw_from--; | |
1695 | ||
1696 | /* Incrementally draw avoids flickering. */ | |
1697 | redraw_view_from(view, redraw_from); | |
4c6fabc2 | 1698 | } |
b801d8b2 | 1699 | |
eb98559e JF |
1700 | /* Update the title _after_ the redraw so that if the redraw picks up a |
1701 | * commit reference in view->ref it'll be available here. */ | |
1702 | update_view_title(view); | |
1703 | ||
b801d8b2 | 1704 | if (ferror(view->pipe)) { |
03a93dbb | 1705 | report("Failed to read: %s", strerror(errno)); |
b801d8b2 JF |
1706 | goto end; |
1707 | ||
1708 | } else if (feof(view->pipe)) { | |
f97f4012 | 1709 | report(""); |
b801d8b2 JF |
1710 | goto end; |
1711 | } | |
1712 | ||
1713 | return TRUE; | |
1714 | ||
1715 | alloc_error: | |
2e8488b4 | 1716 | report("Allocation failure"); |
b801d8b2 JF |
1717 | |
1718 | end: | |
1719 | end_update(view); | |
1720 | return FALSE; | |
1721 | } | |
1722 | ||
79d445ca | 1723 | |
e10154d5 JF |
1724 | /* |
1725 | * View opening | |
1726 | */ | |
1727 | ||
79d445ca JF |
1728 | static void open_help_view(struct view *view) |
1729 | { | |
1730 | char buf[BUFSIZ]; | |
1731 | int lines = ARRAY_SIZE(req_info) + 2; | |
1732 | int i; | |
1733 | ||
1734 | if (view->lines > 0) | |
1735 | return; | |
1736 | ||
1737 | for (i = 0; i < ARRAY_SIZE(req_info); i++) | |
1738 | if (!req_info[i].request) | |
1739 | lines++; | |
1740 | ||
1741 | view->line = calloc(lines, sizeof(*view->line)); | |
1742 | if (!view->line) { | |
1743 | report("Allocation failure"); | |
1744 | return; | |
1745 | } | |
1746 | ||
1747 | view->ops->read(view, "Quick reference for tig keybindings:"); | |
1748 | ||
1749 | for (i = 0; i < ARRAY_SIZE(req_info); i++) { | |
1750 | char *key; | |
1751 | ||
1752 | if (!req_info[i].request) { | |
1753 | view->ops->read(view, ""); | |
1754 | view->ops->read(view, req_info[i].help); | |
1755 | continue; | |
1756 | } | |
1757 | ||
1758 | key = get_key(req_info[i].request); | |
1759 | if (!string_format(buf, "%-25s %s", key, req_info[i].help)) | |
1760 | continue; | |
1761 | ||
1762 | view->ops->read(view, buf); | |
1763 | } | |
1764 | } | |
1765 | ||
49f2b43f JF |
1766 | enum open_flags { |
1767 | OPEN_DEFAULT = 0, /* Use default view switching. */ | |
1768 | OPEN_SPLIT = 1, /* Split current view. */ | |
1769 | OPEN_BACKGROUNDED = 2, /* Backgrounded. */ | |
1770 | OPEN_RELOAD = 4, /* Reload view even if it is the current. */ | |
1771 | }; | |
1772 | ||
6b161b31 | 1773 | static void |
49f2b43f | 1774 | open_view(struct view *prev, enum request request, enum open_flags flags) |
b801d8b2 | 1775 | { |
49f2b43f JF |
1776 | bool backgrounded = !!(flags & OPEN_BACKGROUNDED); |
1777 | bool split = !!(flags & OPEN_SPLIT); | |
1778 | bool reload = !!(flags & OPEN_RELOAD); | |
a28bcc22 | 1779 | struct view *view = VIEW(request); |
9f41488f | 1780 | int nviews = displayed_views(); |
6e950a52 | 1781 | struct view *base_view = display[0]; |
b801d8b2 | 1782 | |
49f2b43f | 1783 | if (view == prev && nviews == 1 && !reload) { |
6b161b31 JF |
1784 | report("Already in %s view", view->name); |
1785 | return; | |
1786 | } | |
b801d8b2 | 1787 | |
2509b112 | 1788 | if (view == VIEW(REQ_VIEW_HELP)) { |
79d445ca | 1789 | open_help_view(view); |
2509b112 JF |
1790 | |
1791 | } else if ((reload || strcmp(view->vid, view->id)) && | |
1792 | !begin_update(view)) { | |
6b161b31 JF |
1793 | report("Failed to load %s view", view->name); |
1794 | return; | |
1795 | } | |
a28bcc22 | 1796 | |
6b161b31 | 1797 | if (split) { |
8d741c06 | 1798 | display[1] = view; |
6b161b31 | 1799 | if (!backgrounded) |
8d741c06 | 1800 | current_view = 1; |
6b161b31 JF |
1801 | } else { |
1802 | /* Maximize the current view. */ | |
1803 | memset(display, 0, sizeof(display)); | |
1804 | current_view = 0; | |
1805 | display[current_view] = view; | |
a28bcc22 | 1806 | } |
b801d8b2 | 1807 | |
6e950a52 JF |
1808 | /* Resize the view when switching between split- and full-screen, |
1809 | * or when switching between two different full-screen views. */ | |
1810 | if (nviews != displayed_views() || | |
1811 | (nviews == 1 && base_view != display[0])) | |
a006db63 | 1812 | resize_display(); |
b801d8b2 | 1813 | |
a8891802 | 1814 | if (split && prev->lineno - prev->offset >= prev->height) { |
03a93dbb | 1815 | /* Take the title line into account. */ |
eb98559e | 1816 | int lines = prev->lineno - prev->offset - prev->height + 1; |
03a93dbb JF |
1817 | |
1818 | /* Scroll the view that was split if the current line is | |
1819 | * outside the new limited view. */ | |
b3a54cba | 1820 | do_scroll_view(prev, lines, TRUE); |
03a93dbb JF |
1821 | } |
1822 | ||
6b161b31 | 1823 | if (prev && view != prev) { |
9b995f0c | 1824 | if (split && !backgrounded) { |
f0b3ab80 JF |
1825 | /* "Blur" the previous view. */ |
1826 | update_view_title(prev); | |
9f396969 | 1827 | } |
f0b3ab80 | 1828 | |
f6da0b66 | 1829 | view->parent = prev; |
b801d8b2 JF |
1830 | } |
1831 | ||
9f396969 | 1832 | if (view->pipe && view->lines == 0) { |
03a93dbb JF |
1833 | /* Clear the old view and let the incremental updating refill |
1834 | * the screen. */ | |
1835 | wclear(view->win); | |
f97f4012 | 1836 | report(""); |
03a93dbb JF |
1837 | } else { |
1838 | redraw_view(view); | |
24b5b3e0 | 1839 | report(""); |
03a93dbb | 1840 | } |
6706b2ba JF |
1841 | |
1842 | /* If the view is backgrounded the above calls to report() | |
1843 | * won't redraw the view title. */ | |
1844 | if (backgrounded) | |
1845 | update_view_title(view); | |
b801d8b2 JF |
1846 | } |
1847 | ||
1848 | ||
6b161b31 JF |
1849 | /* |
1850 | * User request switch noodle | |
1851 | */ | |
1852 | ||
b801d8b2 | 1853 | static int |
6b161b31 | 1854 | view_driver(struct view *view, enum request request) |
b801d8b2 | 1855 | { |
b801d8b2 JF |
1856 | int i; |
1857 | ||
1858 | switch (request) { | |
4a2909a7 JF |
1859 | case REQ_MOVE_UP: |
1860 | case REQ_MOVE_DOWN: | |
1861 | case REQ_MOVE_PAGE_UP: | |
1862 | case REQ_MOVE_PAGE_DOWN: | |
1863 | case REQ_MOVE_FIRST_LINE: | |
1864 | case REQ_MOVE_LAST_LINE: | |
b3a54cba | 1865 | move_view(view, request, TRUE); |
fd85fef1 JF |
1866 | break; |
1867 | ||
4a2909a7 JF |
1868 | case REQ_SCROLL_LINE_DOWN: |
1869 | case REQ_SCROLL_LINE_UP: | |
1870 | case REQ_SCROLL_PAGE_DOWN: | |
1871 | case REQ_SCROLL_PAGE_UP: | |
a28bcc22 | 1872 | scroll_view(view, request); |
b801d8b2 JF |
1873 | break; |
1874 | ||
4a2909a7 | 1875 | case REQ_VIEW_MAIN: |
4a2909a7 | 1876 | case REQ_VIEW_DIFF: |
2e8488b4 JF |
1877 | case REQ_VIEW_LOG: |
1878 | case REQ_VIEW_HELP: | |
6908bdbd | 1879 | case REQ_VIEW_PAGER: |
49f2b43f | 1880 | open_view(view, request, OPEN_DEFAULT); |
b801d8b2 JF |
1881 | break; |
1882 | ||
b3a54cba JF |
1883 | case REQ_NEXT: |
1884 | case REQ_PREVIOUS: | |
1885 | request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP; | |
1886 | ||
1887 | if (view == VIEW(REQ_VIEW_DIFF) && | |
1888 | view->parent == VIEW(REQ_VIEW_MAIN)) { | |
f0b3ab80 | 1889 | bool redraw = display[1] == view; |
b3a54cba JF |
1890 | |
1891 | view = view->parent; | |
1892 | move_view(view, request, redraw); | |
f0b3ab80 JF |
1893 | if (redraw) |
1894 | update_view_title(view); | |
b3a54cba JF |
1895 | } else { |
1896 | move_view(view, request, TRUE); | |
1897 | break; | |
1898 | } | |
6706b2ba JF |
1899 | /* Fall-through */ |
1900 | ||
6b161b31 | 1901 | case REQ_ENTER: |
6908bdbd JF |
1902 | if (!view->lines) { |
1903 | report("Nothing to enter"); | |
1904 | break; | |
1905 | } | |
fe7233c3 | 1906 | return view->ops->enter(view, &view->line[view->lineno]); |
6b161b31 | 1907 | |
03a93dbb JF |
1908 | case REQ_VIEW_NEXT: |
1909 | { | |
9f41488f | 1910 | int nviews = displayed_views(); |
03a93dbb JF |
1911 | int next_view = (current_view + 1) % nviews; |
1912 | ||
1913 | if (next_view == current_view) { | |
1914 | report("Only one view is displayed"); | |
1915 | break; | |
1916 | } | |
1917 | ||
1918 | current_view = next_view; | |
1919 | /* Blur out the title of the previous view. */ | |
1920 | update_view_title(view); | |
6734f6b9 | 1921 | report(""); |
03a93dbb JF |
1922 | break; |
1923 | } | |
24b5b3e0 | 1924 | case REQ_TOGGLE_LINENO: |
b76c2afc | 1925 | opt_line_number = !opt_line_number; |
20bb5e18 | 1926 | redraw_display(); |
b801d8b2 JF |
1927 | break; |
1928 | ||
54efb62b JF |
1929 | case REQ_TOGGLE_REV_GRAPH: |
1930 | opt_rev_graph = !opt_rev_graph; | |
1931 | redraw_display(); | |
1932 | break; | |
1933 | ||
03a93dbb | 1934 | case REQ_PROMPT: |
8855ada4 | 1935 | /* Always reload^Wrerun commands from the prompt. */ |
49f2b43f | 1936 | open_view(view, opt_request, OPEN_RELOAD); |
03a93dbb JF |
1937 | break; |
1938 | ||
4a2909a7 | 1939 | case REQ_STOP_LOADING: |
59a45d3a JF |
1940 | for (i = 0; i < ARRAY_SIZE(views); i++) { |
1941 | view = &views[i]; | |
2e8488b4 | 1942 | if (view->pipe) |
6a7bb912 | 1943 | report("Stopped loading the %s view", view->name), |
03a93dbb JF |
1944 | end_update(view); |
1945 | } | |
b801d8b2 JF |
1946 | break; |
1947 | ||
4a2909a7 | 1948 | case REQ_SHOW_VERSION: |
6cb291b7 | 1949 | report("%s (built %s)", VERSION, __DATE__); |
b801d8b2 JF |
1950 | return TRUE; |
1951 | ||
fac7db6c JF |
1952 | case REQ_SCREEN_RESIZE: |
1953 | resize_display(); | |
1954 | /* Fall-through */ | |
4a2909a7 | 1955 | case REQ_SCREEN_REDRAW: |
20bb5e18 | 1956 | redraw_display(); |
4a2909a7 JF |
1957 | break; |
1958 | ||
1959 | case REQ_SCREEN_UPDATE: | |
b801d8b2 JF |
1960 | doupdate(); |
1961 | return TRUE; | |
1962 | ||
4f9b667a | 1963 | case REQ_VIEW_CLOSE: |
2fcf5401 JF |
1964 | /* XXX: Mark closed views by letting view->parent point to the |
1965 | * view itself. Parents to closed view should never be | |
1966 | * followed. */ | |
1967 | if (view->parent && | |
1968 | view->parent->parent != view->parent) { | |
4f9b667a JF |
1969 | memset(display, 0, sizeof(display)); |
1970 | current_view = 0; | |
f6da0b66 | 1971 | display[current_view] = view->parent; |
2fcf5401 | 1972 | view->parent = view; |
4f9b667a JF |
1973 | resize_display(); |
1974 | redraw_display(); | |
1975 | break; | |
1976 | } | |
1977 | /* Fall-through */ | |
b801d8b2 JF |
1978 | case REQ_QUIT: |
1979 | return FALSE; | |
1980 | ||
1981 | default: | |
2e8488b4 | 1982 | /* An unknown key will show most commonly used commands. */ |
468876c9 | 1983 | report("Unknown key, press 'h' for help"); |
b801d8b2 JF |
1984 | return TRUE; |
1985 | } | |
1986 | ||
1987 | return TRUE; | |
1988 | } | |
1989 | ||
1990 | ||
1991 | /* | |
ff26aa29 | 1992 | * Pager backend |
b801d8b2 JF |
1993 | */ |
1994 | ||
6b161b31 | 1995 | static bool |
fe7233c3 | 1996 | pager_draw(struct view *view, struct line *line, unsigned int lineno) |
b801d8b2 | 1997 | { |
fe7233c3 JF |
1998 | char *text = line->data; |
1999 | enum line_type type = line->type; | |
2000 | int textlen = strlen(text); | |
78c70acd | 2001 | int attr; |
b801d8b2 | 2002 | |
6706b2ba JF |
2003 | wmove(view->win, lineno, 0); |
2004 | ||
fd85fef1 | 2005 | if (view->offset + lineno == view->lineno) { |
8855ada4 | 2006 | if (type == LINE_COMMIT) { |
fe7233c3 | 2007 | string_copy(view->ref, text + 7); |
03a93dbb JF |
2008 | string_copy(ref_commit, view->ref); |
2009 | } | |
8855ada4 | 2010 | |
78c70acd | 2011 | type = LINE_CURSOR; |
6706b2ba | 2012 | wchgat(view->win, -1, 0, type, NULL); |
fd85fef1 JF |
2013 | } |
2014 | ||
78c70acd | 2015 | attr = get_line_attr(type); |
b801d8b2 | 2016 | wattrset(view->win, attr); |
b76c2afc | 2017 | |
6706b2ba JF |
2018 | if (opt_line_number || opt_tab_size < TABSIZE) { |
2019 | static char spaces[] = " "; | |
2020 | int col_offset = 0, col = 0; | |
2021 | ||
2022 | if (opt_line_number) { | |
2023 | unsigned long real_lineno = view->offset + lineno + 1; | |
82e78006 | 2024 | |
6706b2ba JF |
2025 | if (real_lineno == 1 || |
2026 | (real_lineno % opt_num_interval) == 0) { | |
2027 | wprintw(view->win, "%.*d", view->digits, real_lineno); | |
8855ada4 | 2028 | |
6706b2ba JF |
2029 | } else { |
2030 | waddnstr(view->win, spaces, | |
2031 | MIN(view->digits, STRING_SIZE(spaces))); | |
2032 | } | |
2033 | waddstr(view->win, ": "); | |
2034 | col_offset = view->digits + 2; | |
2035 | } | |
8855ada4 | 2036 | |
fe7233c3 | 2037 | while (text && col_offset + col < view->width) { |
6706b2ba | 2038 | int cols_max = view->width - col_offset - col; |
fe7233c3 | 2039 | char *pos = text; |
6706b2ba | 2040 | int cols; |
4c6fabc2 | 2041 | |
fe7233c3 JF |
2042 | if (*text == '\t') { |
2043 | text++; | |
6706b2ba | 2044 | assert(sizeof(spaces) > TABSIZE); |
fe7233c3 | 2045 | pos = spaces; |
6706b2ba | 2046 | cols = opt_tab_size - (col % opt_tab_size); |
82e78006 | 2047 | |
b76c2afc | 2048 | } else { |
fe7233c3 JF |
2049 | text = strchr(text, '\t'); |
2050 | cols = line ? text - pos : strlen(pos); | |
b76c2afc | 2051 | } |
6706b2ba | 2052 | |
fe7233c3 | 2053 | waddnstr(view->win, pos, MIN(cols, cols_max)); |
6706b2ba | 2054 | col += cols; |
b76c2afc | 2055 | } |
b76c2afc JF |
2056 | |
2057 | } else { | |
6706b2ba | 2058 | int col = 0, pos = 0; |
b801d8b2 | 2059 | |
fe7233c3 JF |
2060 | for (; pos < textlen && col < view->width; pos++, col++) |
2061 | if (text[pos] == '\t') | |
6706b2ba JF |
2062 | col += TABSIZE - (col % TABSIZE) - 1; |
2063 | ||
fe7233c3 | 2064 | waddnstr(view->win, text, pos); |
6706b2ba | 2065 | } |
2e8488b4 | 2066 | |
b801d8b2 JF |
2067 | return TRUE; |
2068 | } | |
2069 | ||
7b99a34c JF |
2070 | static void |
2071 | add_pager_refs(struct view *view, struct line *line) | |
2072 | { | |
2073 | char buf[1024]; | |
c9ca1ec3 | 2074 | char *commit_id = line->data + STRING_SIZE("commit "); |
7b99a34c JF |
2075 | struct ref **refs; |
2076 | int bufpos = 0, refpos = 0; | |
2077 | const char *sep = "Refs: "; | |
2078 | ||
2079 | assert(line->type == LINE_COMMIT); | |
2080 | ||
c9ca1ec3 | 2081 | refs = get_refs(commit_id); |
7b99a34c JF |
2082 | if (!refs) |
2083 | return; | |
2084 | ||
2085 | do { | |
cc2d1364 JF |
2086 | struct ref *ref = refs[refpos]; |
2087 | char *fmt = ref->tag ? "%s[%s]" : "%s%s"; | |
7b99a34c | 2088 | |
cc2d1364 JF |
2089 | if (!string_format_from(buf, &bufpos, fmt, sep, ref->name)) |
2090 | return; | |
7b99a34c JF |
2091 | sep = ", "; |
2092 | } while (refs[refpos++]->next); | |
2093 | ||
cc2d1364 | 2094 | if (!realloc_lines(view, view->line_size + 1)) |
7b99a34c JF |
2095 | return; |
2096 | ||
2097 | line = &view->line[view->lines]; | |
2098 | line->data = strdup(buf); | |
2099 | if (!line->data) | |
2100 | return; | |
2101 | ||
2102 | line->type = LINE_PP_REFS; | |
2103 | view->lines++; | |
2104 | } | |
2105 | ||
6b161b31 | 2106 | static bool |
701e4f5d | 2107 | pager_read(struct view *view, char *data) |
22f66b0a | 2108 | { |
7b99a34c | 2109 | struct line *line = &view->line[view->lines]; |
22f66b0a | 2110 | |
7b99a34c JF |
2111 | line->data = strdup(data); |
2112 | if (!line->data) | |
2113 | return FALSE; | |
fe7233c3 | 2114 | |
7b99a34c | 2115 | line->type = get_line_type(line->data); |
22f66b0a | 2116 | view->lines++; |
7b99a34c JF |
2117 | |
2118 | if (line->type == LINE_COMMIT && | |
2119 | (view == VIEW(REQ_VIEW_DIFF) || | |
2120 | view == VIEW(REQ_VIEW_LOG))) | |
2121 | add_pager_refs(view, line); | |
2122 | ||
22f66b0a JF |
2123 | return TRUE; |
2124 | } | |
2125 | ||
6b161b31 | 2126 | static bool |
fe7233c3 | 2127 | pager_enter(struct view *view, struct line *line) |
6b161b31 | 2128 | { |
91e8e277 | 2129 | int split = 0; |
6b161b31 | 2130 | |
9fbbd28f JF |
2131 | if (line->type == LINE_COMMIT && |
2132 | (view == VIEW(REQ_VIEW_LOG) || | |
2133 | view == VIEW(REQ_VIEW_PAGER))) { | |
91e8e277 JF |
2134 | open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT); |
2135 | split = 1; | |
67e48ac5 JF |
2136 | } |
2137 | ||
91e8e277 JF |
2138 | /* Always scroll the view even if it was split. That way |
2139 | * you can use Enter to scroll through the log view and | |
2140 | * split open each commit diff. */ | |
2141 | scroll_view(view, REQ_SCROLL_LINE_DOWN); | |
2142 | ||
2143 | /* FIXME: A minor workaround. Scrolling the view will call report("") | |
9d82d824 JF |
2144 | * but if we are scrolling a non-current view this won't properly |
2145 | * update the view title. */ | |
91e8e277 JF |
2146 | if (split) |
2147 | update_view_title(view); | |
6b161b31 JF |
2148 | |
2149 | return TRUE; | |
2150 | } | |
2151 | ||
6b161b31 | 2152 | static struct view_ops pager_ops = { |
6734f6b9 | 2153 | "line", |
6b161b31 JF |
2154 | pager_draw, |
2155 | pager_read, | |
2156 | pager_enter, | |
2157 | }; | |
2158 | ||
80ce96ea | 2159 | |
ff26aa29 JF |
2160 | /* |
2161 | * Main view backend | |
2162 | */ | |
2163 | ||
2164 | struct commit { | |
54efb62b JF |
2165 | char id[41]; /* SHA1 ID. */ |
2166 | char title[75]; /* First line of the commit message. */ | |
2167 | char author[75]; /* Author of the commit. */ | |
2168 | struct tm time; /* Date from the author ident. */ | |
2169 | struct ref **refs; /* Repository references. */ | |
2170 | chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */ | |
2171 | size_t graph_size; /* The width of the graph array. */ | |
ff26aa29 | 2172 | }; |
c34d9c9f | 2173 | |
6b161b31 | 2174 | static bool |
fe7233c3 | 2175 | main_draw(struct view *view, struct line *line, unsigned int lineno) |
22f66b0a | 2176 | { |
2e8488b4 | 2177 | char buf[DATE_COLS + 1]; |
fe7233c3 | 2178 | struct commit *commit = line->data; |
78c70acd | 2179 | enum line_type type; |
6706b2ba | 2180 | int col = 0; |
b76c2afc | 2181 | size_t timelen; |
10e290ee | 2182 | size_t authorlen; |
9989bf60 | 2183 | int trimmed = 1; |
22f66b0a | 2184 | |
4c6fabc2 JF |
2185 | if (!*commit->author) |
2186 | return FALSE; | |
22f66b0a | 2187 | |
6706b2ba JF |
2188 | wmove(view->win, lineno, col); |
2189 | ||
22f66b0a | 2190 | if (view->offset + lineno == view->lineno) { |
03a93dbb | 2191 | string_copy(view->ref, commit->id); |
49f2b43f | 2192 | string_copy(ref_commit, view->ref); |
78c70acd | 2193 | type = LINE_CURSOR; |
6706b2ba JF |
2194 | wattrset(view->win, get_line_attr(type)); |
2195 | wchgat(view->win, -1, 0, type, NULL); | |
2196 | ||
78c70acd | 2197 | } else { |
b76c2afc | 2198 | type = LINE_MAIN_COMMIT; |
6706b2ba | 2199 | wattrset(view->win, get_line_attr(LINE_MAIN_DATE)); |
b76c2afc JF |
2200 | } |
2201 | ||
4c6fabc2 | 2202 | timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time); |
b76c2afc | 2203 | waddnstr(view->win, buf, timelen); |
4c6fabc2 | 2204 | waddstr(view->win, " "); |
b76c2afc | 2205 | |
6706b2ba JF |
2206 | col += DATE_COLS; |
2207 | wmove(view->win, lineno, col); | |
2208 | if (type != LINE_CURSOR) | |
2209 | wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR)); | |
b76c2afc | 2210 | |
9989bf60 JF |
2211 | if (opt_utf8) { |
2212 | authorlen = utf8_length(commit->author, AUTHOR_COLS - 2, &col, &trimmed); | |
2213 | } else { | |
2214 | authorlen = strlen(commit->author); | |
2215 | if (authorlen > AUTHOR_COLS - 2) { | |
2216 | authorlen = AUTHOR_COLS - 2; | |
2217 | trimmed = 1; | |
2218 | } | |
2219 | } | |
10e290ee JF |
2220 | |
2221 | if (trimmed) { | |
2222 | waddnstr(view->win, commit->author, authorlen); | |
6706b2ba JF |
2223 | if (type != LINE_CURSOR) |
2224 | wattrset(view->win, get_line_attr(LINE_MAIN_DELIM)); | |
b76c2afc JF |
2225 | waddch(view->win, '~'); |
2226 | } else { | |
2227 | waddstr(view->win, commit->author); | |
22f66b0a JF |
2228 | } |
2229 | ||
10e290ee | 2230 | col += AUTHOR_COLS; |
6706b2ba JF |
2231 | if (type != LINE_CURSOR) |
2232 | wattrset(view->win, A_NORMAL); | |
2233 | ||
54efb62b JF |
2234 | if (opt_rev_graph && commit->graph_size) { |
2235 | size_t i; | |
2236 | ||
2237 | wmove(view->win, lineno, col); | |
2238 | /* Using waddch() instead of waddnstr() ensures that | |
2239 | * they'll be rendered correctly for the cursor line. */ | |
2240 | for (i = 0; i < commit->graph_size; i++) | |
2241 | waddch(view->win, commit->graph[i]); | |
2242 | ||
2243 | col += commit->graph_size + 1; | |
2244 | } | |
2245 | ||
2246 | wmove(view->win, lineno, col); | |
c34d9c9f JF |
2247 | |
2248 | if (commit->refs) { | |
2249 | size_t i = 0; | |
2250 | ||
2251 | do { | |
6706b2ba JF |
2252 | if (type == LINE_CURSOR) |
2253 | ; | |
2254 | else if (commit->refs[i]->tag) | |
c34d9c9f JF |
2255 | wattrset(view->win, get_line_attr(LINE_MAIN_TAG)); |
2256 | else | |
2257 | wattrset(view->win, get_line_attr(LINE_MAIN_REF)); | |
2258 | waddstr(view->win, "["); | |
2259 | waddstr(view->win, commit->refs[i]->name); | |
2260 | waddstr(view->win, "]"); | |
6706b2ba JF |
2261 | if (type != LINE_CURSOR) |
2262 | wattrset(view->win, A_NORMAL); | |
c34d9c9f | 2263 | waddstr(view->win, " "); |
6706b2ba | 2264 | col += strlen(commit->refs[i]->name) + STRING_SIZE("[] "); |
c34d9c9f JF |
2265 | } while (commit->refs[i++]->next); |
2266 | } | |
2267 | ||
6706b2ba JF |
2268 | if (type != LINE_CURSOR) |
2269 | wattrset(view->win, get_line_attr(type)); | |
2270 | ||
2271 | { | |
2272 | int titlelen = strlen(commit->title); | |
2273 | ||
2274 | if (col + titlelen > view->width) | |
2275 | titlelen = view->width - col; | |
2276 | ||
2277 | waddnstr(view->win, commit->title, titlelen); | |
2278 | } | |
22f66b0a JF |
2279 | |
2280 | return TRUE; | |
2281 | } | |
2282 | ||
4c6fabc2 | 2283 | /* Reads git log --pretty=raw output and parses it into the commit struct. */ |
6b161b31 | 2284 | static bool |
701e4f5d | 2285 | main_read(struct view *view, char *line) |
22f66b0a | 2286 | { |
78c70acd | 2287 | enum line_type type = get_line_type(line); |
701e4f5d JF |
2288 | struct commit *commit = view->lines |
2289 | ? view->line[view->lines - 1].data : NULL; | |
22f66b0a | 2290 | |
78c70acd JF |
2291 | switch (type) { |
2292 | case LINE_COMMIT: | |
22f66b0a JF |
2293 | commit = calloc(1, sizeof(struct commit)); |
2294 | if (!commit) | |
2295 | return FALSE; | |
2296 | ||
4c6fabc2 | 2297 | line += STRING_SIZE("commit "); |
b76c2afc | 2298 | |
fe7233c3 | 2299 | view->line[view->lines++].data = commit; |
82e78006 | 2300 | string_copy(commit->id, line); |
c34d9c9f | 2301 | commit->refs = get_refs(commit->id); |
54efb62b | 2302 | commit->graph[commit->graph_size++] = ACS_LTEE; |
78c70acd | 2303 | break; |
22f66b0a | 2304 | |
8855ada4 | 2305 | case LINE_AUTHOR: |
b76c2afc | 2306 | { |
4c6fabc2 | 2307 | char *ident = line + STRING_SIZE("author "); |
b76c2afc JF |
2308 | char *end = strchr(ident, '<'); |
2309 | ||
701e4f5d | 2310 | if (!commit) |
fe7233c3 JF |
2311 | break; |
2312 | ||
b76c2afc | 2313 | if (end) { |
cbbf2d1b JF |
2314 | char *email = end + 1; |
2315 | ||
b76c2afc | 2316 | for (; end > ident && isspace(end[-1]); end--) ; |
cbbf2d1b JF |
2317 | |
2318 | if (end == ident && *email) { | |
2319 | ident = email; | |
2320 | end = strchr(ident, '>'); | |
2321 | for (; end > ident && isspace(end[-1]); end--) ; | |
2322 | } | |
b76c2afc JF |
2323 | *end = 0; |
2324 | } | |
2325 | ||
cbbf2d1b JF |
2326 | /* End is NULL or ident meaning there's no author. */ |
2327 | if (end <= ident) | |
2328 | ident = "Unknown"; | |
2329 | ||
82e78006 | 2330 | string_copy(commit->author, ident); |
b76c2afc | 2331 | |
4c6fabc2 | 2332 | /* Parse epoch and timezone */ |
b76c2afc JF |
2333 | if (end) { |
2334 | char *secs = strchr(end + 1, '>'); | |
2335 | char *zone; | |
2336 | time_t time; | |
2337 | ||
2338 | if (!secs || secs[1] != ' ') | |
2339 | break; | |
2340 | ||
2341 | secs += 2; | |
2342 | time = (time_t) atol(secs); | |
2343 | zone = strchr(secs, ' '); | |
4c6fabc2 | 2344 | if (zone && strlen(zone) == STRING_SIZE(" +0700")) { |
b76c2afc JF |
2345 | long tz; |
2346 | ||
2347 | zone++; | |
2348 | tz = ('0' - zone[1]) * 60 * 60 * 10; | |
2349 | tz += ('0' - zone[2]) * 60 * 60; | |
2350 | tz += ('0' - zone[3]) * 60; | |
2351 | tz += ('0' - zone[4]) * 60; | |
2352 | ||
2353 | if (zone[0] == '-') | |
2354 | tz = -tz; | |
2355 | ||
2356 | time -= tz; | |
2357 | } | |
2358 | gmtime_r(&time, &commit->time); | |
2359 | } | |
2360 | break; | |
2361 | } | |
78c70acd | 2362 | default: |
701e4f5d | 2363 | if (!commit) |
2e8488b4 JF |
2364 | break; |
2365 | ||
2366 | /* Fill in the commit title if it has not already been set. */ | |
2e8488b4 JF |
2367 | if (commit->title[0]) |
2368 | break; | |
2369 | ||
2370 | /* Require titles to start with a non-space character at the | |
2371 | * offset used by git log. */ | |
eb98559e JF |
2372 | /* FIXME: More gracefull handling of titles; append "..." to |
2373 | * shortened titles, etc. */ | |
2e8488b4 | 2374 | if (strncmp(line, " ", 4) || |
eb98559e | 2375 | isspace(line[4])) |
82e78006 JF |
2376 | break; |
2377 | ||
2378 | string_copy(commit->title, line + 4); | |
22f66b0a JF |
2379 | } |
2380 | ||
2381 | return TRUE; | |
2382 | } | |
2383 | ||
6b161b31 | 2384 | static bool |
fe7233c3 | 2385 | main_enter(struct view *view, struct line *line) |
b801d8b2 | 2386 | { |
b3a54cba JF |
2387 | enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT; |
2388 | ||
2389 | open_view(view, REQ_VIEW_DIFF, flags); | |
6b161b31 | 2390 | return TRUE; |
b801d8b2 JF |
2391 | } |
2392 | ||
6b161b31 | 2393 | static struct view_ops main_ops = { |
6734f6b9 | 2394 | "commit", |
6b161b31 JF |
2395 | main_draw, |
2396 | main_read, | |
2397 | main_enter, | |
2398 | }; | |
2e8488b4 | 2399 | |
c34d9c9f | 2400 | |
6b161b31 | 2401 | /* |
10e290ee JF |
2402 | * Unicode / UTF-8 handling |
2403 | * | |
2404 | * NOTE: Much of the following code for dealing with unicode is derived from | |
2405 | * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is | |
2406 | * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28. | |
2407 | */ | |
2408 | ||
2409 | /* I've (over)annotated a lot of code snippets because I am not entirely | |
2410 | * confident that the approach taken by this small UTF-8 interface is correct. | |
2411 | * --jonas */ | |
2412 | ||
2413 | static inline int | |
2414 | unicode_width(unsigned long c) | |
2415 | { | |
2416 | if (c >= 0x1100 && | |
2417 | (c <= 0x115f /* Hangul Jamo */ | |
2418 | || c == 0x2329 | |
2419 | || c == 0x232a | |
2420 | || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f) | |
f97f4012 | 2421 | /* CJK ... Yi */ |
10e290ee JF |
2422 | || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */ |
2423 | || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */ | |
2424 | || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */ | |
2425 | || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */ | |
2426 | || (c >= 0xffe0 && c <= 0xffe6) | |
2427 | || (c >= 0x20000 && c <= 0x2fffd) | |
2428 | || (c >= 0x30000 && c <= 0x3fffd))) | |
2429 | return 2; | |
2430 | ||
2431 | return 1; | |
2432 | } | |
2433 | ||
2434 | /* Number of bytes used for encoding a UTF-8 character indexed by first byte. | |
2435 | * Illegal bytes are set one. */ | |
2436 | static const unsigned char utf8_bytes[256] = { | |
2437 | 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, | |
2438 | 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, | |
2439 | 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, | |
2440 | 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, | |
2441 | 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, | |
2442 | 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, | |
2443 | 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, | |
2444 | 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, | |
2445 | }; | |
2446 | ||
2447 | /* Decode UTF-8 multi-byte representation into a unicode character. */ | |
2448 | static inline unsigned long | |
2449 | utf8_to_unicode(const char *string, size_t length) | |
2450 | { | |
2451 | unsigned long unicode; | |
2452 | ||
2453 | switch (length) { | |
2454 | case 1: | |
2455 | unicode = string[0]; | |
2456 | break; | |
2457 | case 2: | |
2458 | unicode = (string[0] & 0x1f) << 6; | |
2459 | unicode += (string[1] & 0x3f); | |
2460 | break; | |
2461 | case 3: | |
2462 | unicode = (string[0] & 0x0f) << 12; | |
2463 | unicode += ((string[1] & 0x3f) << 6); | |
2464 | unicode += (string[2] & 0x3f); | |
2465 | break; | |
2466 | case 4: | |
2467 | unicode = (string[0] & 0x0f) << 18; | |
2468 | unicode += ((string[1] & 0x3f) << 12); | |
2469 | unicode += ((string[2] & 0x3f) << 6); | |
2470 | unicode += (string[3] & 0x3f); | |
2471 | break; | |
2472 | case 5: | |
2473 | unicode = (string[0] & 0x0f) << 24; | |
2474 | unicode += ((string[1] & 0x3f) << 18); | |
2475 | unicode += ((string[2] & 0x3f) << 12); | |
2476 | unicode += ((string[3] & 0x3f) << 6); | |
2477 | unicode += (string[4] & 0x3f); | |
2478 | break; | |
68b6e0eb | 2479 | case 6: |
10e290ee JF |
2480 | unicode = (string[0] & 0x01) << 30; |
2481 | unicode += ((string[1] & 0x3f) << 24); | |
2482 | unicode += ((string[2] & 0x3f) << 18); | |
2483 | unicode += ((string[3] & 0x3f) << 12); | |
2484 | unicode += ((string[4] & 0x3f) << 6); | |
2485 | unicode += (string[5] & 0x3f); | |
2486 | break; | |
2487 | default: | |
2488 | die("Invalid unicode length"); | |
2489 | } | |
2490 | ||
2491 | /* Invalid characters could return the special 0xfffd value but NUL | |
2492 | * should be just as good. */ | |
2493 | return unicode > 0xffff ? 0 : unicode; | |
2494 | } | |
2495 | ||
2496 | /* Calculates how much of string can be shown within the given maximum width | |
2497 | * and sets trimmed parameter to non-zero value if all of string could not be | |
2498 | * shown. | |
2499 | * | |
2500 | * Additionally, adds to coloffset how many many columns to move to align with | |
2501 | * the expected position. Takes into account how multi-byte and double-width | |
2502 | * characters will effect the cursor position. | |
2503 | * | |
2504 | * Returns the number of bytes to output from string to satisfy max_width. */ | |
2505 | static size_t | |
2506 | utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed) | |
2507 | { | |
2508 | const char *start = string; | |
2509 | const char *end = strchr(string, '\0'); | |
2510 | size_t mbwidth = 0; | |
2511 | size_t width = 0; | |
2512 | ||
2513 | *trimmed = 0; | |
2514 | ||
2515 | while (string < end) { | |
2516 | int c = *(unsigned char *) string; | |
2517 | unsigned char bytes = utf8_bytes[c]; | |
2518 | size_t ucwidth; | |
2519 | unsigned long unicode; | |
2520 | ||
2521 | if (string + bytes > end) | |
2522 | break; | |
2523 | ||
2524 | /* Change representation to figure out whether | |
2525 | * it is a single- or double-width character. */ | |
2526 | ||
2527 | unicode = utf8_to_unicode(string, bytes); | |
2528 | /* FIXME: Graceful handling of invalid unicode character. */ | |
2529 | if (!unicode) | |
2530 | break; | |
2531 | ||
2532 | ucwidth = unicode_width(unicode); | |
2533 | width += ucwidth; | |
2534 | if (width > max_width) { | |
2535 | *trimmed = 1; | |
2536 | break; | |
2537 | } | |
2538 | ||
2539 | /* The column offset collects the differences between the | |
2540 | * number of bytes encoding a character and the number of | |
2541 | * columns will be used for rendering said character. | |
2542 | * | |
2543 | * So if some character A is encoded in 2 bytes, but will be | |
2544 | * represented on the screen using only 1 byte this will and up | |
2545 | * adding 1 to the multi-byte column offset. | |
2546 | * | |
2547 | * Assumes that no double-width character can be encoding in | |
2548 | * less than two bytes. */ | |
2549 | if (bytes > ucwidth) | |
2550 | mbwidth += bytes - ucwidth; | |
2551 | ||
2552 | string += bytes; | |
2553 | } | |
2554 | ||
2555 | *coloffset += mbwidth; | |
2556 | ||
2557 | return string - start; | |
2558 | } | |
2559 | ||
2560 | ||
2561 | /* | |
6b161b31 JF |
2562 | * Status management |
2563 | */ | |
2e8488b4 | 2564 | |
8855ada4 | 2565 | /* Whether or not the curses interface has been initialized. */ |
68b6e0eb | 2566 | static bool cursed = FALSE; |
8855ada4 | 2567 | |
6b161b31 JF |
2568 | /* The status window is used for polling keystrokes. */ |
2569 | static WINDOW *status_win; | |
4a2909a7 | 2570 | |
2e8488b4 | 2571 | /* Update status and title window. */ |
4a2909a7 JF |
2572 | static void |
2573 | report(const char *msg, ...) | |
2574 | { | |
6706b2ba JF |
2575 | static bool empty = TRUE; |
2576 | struct view *view = display[current_view]; | |
b76c2afc | 2577 | |
6706b2ba JF |
2578 | if (!empty || *msg) { |
2579 | va_list args; | |
4a2909a7 | 2580 | |
6706b2ba | 2581 | va_start(args, msg); |
4b76734f | 2582 | |
6706b2ba JF |
2583 | werase(status_win); |
2584 | wmove(status_win, 0, 0); | |
2585 | if (*msg) { | |
2586 | vwprintw(status_win, msg, args); | |
2587 | empty = FALSE; | |
2588 | } else { | |
2589 | empty = TRUE; | |
2590 | } | |
2591 | wrefresh(status_win); | |
b801d8b2 | 2592 | |
6706b2ba JF |
2593 | va_end(args); |
2594 | } | |
2595 | ||
2596 | update_view_title(view); | |
85af6284 | 2597 | update_display_cursor(); |
b801d8b2 JF |
2598 | } |
2599 | ||
6b161b31 JF |
2600 | /* Controls when nodelay should be in effect when polling user input. */ |
2601 | static void | |
1ba2ae4b | 2602 | set_nonblocking_input(bool loading) |
b801d8b2 | 2603 | { |
6706b2ba | 2604 | static unsigned int loading_views; |
b801d8b2 | 2605 | |
6706b2ba JF |
2606 | if ((loading == FALSE && loading_views-- == 1) || |
2607 | (loading == TRUE && loading_views++ == 0)) | |
1ba2ae4b | 2608 | nodelay(status_win, loading); |
6b161b31 JF |
2609 | } |
2610 | ||
2611 | static void | |
2612 | init_display(void) | |
2613 | { | |
2614 | int x, y; | |
b76c2afc | 2615 | |
6908bdbd JF |
2616 | /* Initialize the curses library */ |
2617 | if (isatty(STDIN_FILENO)) { | |
8855ada4 | 2618 | cursed = !!initscr(); |
6908bdbd JF |
2619 | } else { |
2620 | /* Leave stdin and stdout alone when acting as a pager. */ | |
2621 | FILE *io = fopen("/dev/tty", "r+"); | |
2622 | ||
e6f60674 JF |
2623 | if (!io) |
2624 | die("Failed to open /dev/tty"); | |
8855ada4 | 2625 | cursed = !!newterm(NULL, io, io); |
6908bdbd JF |
2626 | } |
2627 | ||
8855ada4 JF |
2628 | if (!cursed) |
2629 | die("Failed to initialize curses"); | |
2630 | ||
2e8488b4 JF |
2631 | nonl(); /* Tell curses not to do NL->CR/NL on output */ |
2632 | cbreak(); /* Take input chars one at a time, no wait for \n */ | |
2633 | noecho(); /* Don't echo input */ | |
b801d8b2 | 2634 | leaveok(stdscr, TRUE); |
b801d8b2 JF |
2635 | |
2636 | if (has_colors()) | |
2637 | init_colors(); | |
2638 | ||
2639 | getmaxyx(stdscr, y, x); | |
2640 | status_win = newwin(1, 0, y - 1, 0); | |
2641 | if (!status_win) | |
2642 | die("Failed to create status window"); | |
2643 | ||
2644 | /* Enable keyboard mapping */ | |
2645 | keypad(status_win, TRUE); | |
78c70acd | 2646 | wbkgdset(status_win, get_line_attr(LINE_STATUS)); |
6b161b31 JF |
2647 | } |
2648 | ||
ef5404a4 JF |
2649 | static int |
2650 | read_prompt(void) | |
2651 | { | |
2652 | enum { READING, STOP, CANCEL } status = READING; | |
2653 | char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")]; | |
2654 | int pos = 0; | |
2655 | ||
2656 | while (status == READING) { | |
2657 | struct view *view; | |
2658 | int i, key; | |
2659 | ||
2660 | foreach_view (view, i) | |
2661 | update_view(view); | |
2662 | ||
2663 | report(":%.*s", pos, buf); | |
2664 | /* Refresh, accept single keystroke of input */ | |
2665 | key = wgetch(status_win); | |
2666 | switch (key) { | |
2667 | case KEY_RETURN: | |
2668 | case KEY_ENTER: | |
2669 | case '\n': | |
2670 | status = pos ? STOP : CANCEL; | |
2671 | break; | |
2672 | ||
2673 | case KEY_BACKSPACE: | |
2674 | if (pos > 0) | |
2675 | pos--; | |
2676 | else | |
2677 | status = CANCEL; | |
2678 | break; | |
2679 | ||
2680 | case KEY_ESC: | |
2681 | status = CANCEL; | |
2682 | break; | |
2683 | ||
2684 | case ERR: | |
2685 | break; | |
2686 | ||
2687 | default: | |
2688 | if (pos >= sizeof(buf)) { | |
2689 | report("Input string too long"); | |
2690 | return ERR; | |
2691 | } | |
2692 | ||
2693 | if (isprint(key)) | |
2694 | buf[pos++] = (char) key; | |
2695 | } | |
2696 | } | |
2697 | ||
2698 | if (status == CANCEL) { | |
2699 | /* Clear the status window */ | |
2700 | report(""); | |
2701 | return ERR; | |
2702 | } | |
2703 | ||
2704 | buf[pos++] = 0; | |
2705 | if (!string_format(opt_cmd, "git %s", buf)) | |
2706 | return ERR; | |
efa092c4 JF |
2707 | if (strncmp(buf, "show", 4) && isspace(buf[4])) |
2708 | opt_request = REQ_VIEW_DIFF; | |
2709 | else | |
2710 | opt_request = REQ_VIEW_PAGER; | |
ef5404a4 JF |
2711 | |
2712 | return OK; | |
2713 | } | |
c34d9c9f JF |
2714 | |
2715 | /* | |
2716 | * Repository references | |
2717 | */ | |
2718 | ||
2719 | static struct ref *refs; | |
3a91b75e | 2720 | static size_t refs_size; |
c34d9c9f | 2721 | |
1307df1a JF |
2722 | /* Id <-> ref store */ |
2723 | static struct ref ***id_refs; | |
2724 | static size_t id_refs_size; | |
2725 | ||
c34d9c9f JF |
2726 | static struct ref ** |
2727 | get_refs(char *id) | |
2728 | { | |
1307df1a JF |
2729 | struct ref ***tmp_id_refs; |
2730 | struct ref **ref_list = NULL; | |
2731 | size_t ref_list_size = 0; | |
c34d9c9f JF |
2732 | size_t i; |
2733 | ||
1307df1a JF |
2734 | for (i = 0; i < id_refs_size; i++) |
2735 | if (!strcmp(id, id_refs[i][0]->id)) | |
2736 | return id_refs[i]; | |
2737 | ||
2738 | tmp_id_refs = realloc(id_refs, (id_refs_size + 1) * sizeof(*id_refs)); | |
2739 | if (!tmp_id_refs) | |
2740 | return NULL; | |
2741 | ||
2742 | id_refs = tmp_id_refs; | |
2743 | ||
c34d9c9f JF |
2744 | for (i = 0; i < refs_size; i++) { |
2745 | struct ref **tmp; | |
2746 | ||
2747 | if (strcmp(id, refs[i].id)) | |
2748 | continue; | |
2749 | ||
1307df1a | 2750 | tmp = realloc(ref_list, (ref_list_size + 1) * sizeof(*ref_list)); |
c34d9c9f | 2751 | if (!tmp) { |
1307df1a JF |
2752 | if (ref_list) |
2753 | free(ref_list); | |
c34d9c9f JF |
2754 | return NULL; |
2755 | } | |
2756 | ||
1307df1a JF |
2757 | ref_list = tmp; |
2758 | if (ref_list_size > 0) | |
2759 | ref_list[ref_list_size - 1]->next = 1; | |
2760 | ref_list[ref_list_size] = &refs[i]; | |
3af8774e JF |
2761 | |
2762 | /* XXX: The properties of the commit chains ensures that we can | |
2763 | * safely modify the shared ref. The repo references will | |
2764 | * always be similar for the same id. */ | |
1307df1a JF |
2765 | ref_list[ref_list_size]->next = 0; |
2766 | ref_list_size++; | |
c34d9c9f JF |
2767 | } |
2768 | ||
1307df1a JF |
2769 | if (ref_list) |
2770 | id_refs[id_refs_size++] = ref_list; | |
2771 | ||
2772 | return ref_list; | |
c34d9c9f JF |
2773 | } |
2774 | ||
2775 | static int | |
d0cea5f9 | 2776 | read_ref(char *id, int idlen, char *name, int namelen) |
c34d9c9f | 2777 | { |
d0cea5f9 JF |
2778 | struct ref *ref; |
2779 | bool tag = FALSE; | |
d0cea5f9 | 2780 | |
8b0297ae JF |
2781 | if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) { |
2782 | /* Commits referenced by tags has "^{}" appended. */ | |
2783 | if (name[namelen - 1] != '}') | |
2784 | return OK; | |
2785 | ||
d0cea5f9 JF |
2786 | while (namelen > 0 && name[namelen] != '^') |
2787 | namelen--; | |
c34d9c9f | 2788 | |
d0cea5f9 | 2789 | tag = TRUE; |
8b0297ae JF |
2790 | namelen -= STRING_SIZE("refs/tags/"); |
2791 | name += STRING_SIZE("refs/tags/"); | |
c34d9c9f | 2792 | |
d0cea5f9 | 2793 | } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) { |
8b0297ae JF |
2794 | namelen -= STRING_SIZE("refs/heads/"); |
2795 | name += STRING_SIZE("refs/heads/"); | |
c34d9c9f | 2796 | |
d0cea5f9 JF |
2797 | } else if (!strcmp(name, "HEAD")) { |
2798 | return OK; | |
2799 | } | |
6706b2ba | 2800 | |
d0cea5f9 JF |
2801 | refs = realloc(refs, sizeof(*refs) * (refs_size + 1)); |
2802 | if (!refs) | |
2803 | return ERR; | |
c34d9c9f | 2804 | |
d0cea5f9 | 2805 | ref = &refs[refs_size++]; |
8b0297ae | 2806 | ref->name = malloc(namelen + 1); |
d0cea5f9 JF |
2807 | if (!ref->name) |
2808 | return ERR; | |
3af8774e | 2809 | |
8b0297ae JF |
2810 | strncpy(ref->name, name, namelen); |
2811 | ref->name[namelen] = 0; | |
d0cea5f9 JF |
2812 | ref->tag = tag; |
2813 | string_copy(ref->id, id); | |
3af8774e | 2814 | |
d0cea5f9 JF |
2815 | return OK; |
2816 | } | |
c34d9c9f | 2817 | |
d0cea5f9 JF |
2818 | static int |
2819 | load_refs(void) | |
2820 | { | |
2821 | const char *cmd_env = getenv("TIG_LS_REMOTE"); | |
2822 | const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE; | |
c34d9c9f | 2823 | |
4a63c884 | 2824 | return read_properties(popen(cmd, "r"), "\t", read_ref); |
d0cea5f9 | 2825 | } |
c34d9c9f | 2826 | |
d0cea5f9 | 2827 | static int |
14c778a6 | 2828 | read_repo_config_option(char *name, int namelen, char *value, int valuelen) |
d0cea5f9 | 2829 | { |
22913179 | 2830 | if (!strcmp(name, "i18n.commitencoding")) |
d0cea5f9 | 2831 | string_copy(opt_encoding, value); |
c34d9c9f | 2832 | |
c34d9c9f JF |
2833 | return OK; |
2834 | } | |
2835 | ||
4670cf89 | 2836 | static int |
14c778a6 | 2837 | load_repo_config(void) |
4670cf89 | 2838 | { |
66749723 | 2839 | return read_properties(popen("git repo-config --list", "r"), |
14c778a6 | 2840 | "=", read_repo_config_option); |
d0cea5f9 JF |
2841 | } |
2842 | ||
2843 | static int | |
4a63c884 | 2844 | read_properties(FILE *pipe, const char *separators, |
d0cea5f9 JF |
2845 | int (*read_property)(char *, int, char *, int)) |
2846 | { | |
4670cf89 JF |
2847 | char buffer[BUFSIZ]; |
2848 | char *name; | |
d0cea5f9 | 2849 | int state = OK; |
4670cf89 JF |
2850 | |
2851 | if (!pipe) | |
2852 | return ERR; | |
2853 | ||
d0cea5f9 | 2854 | while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) { |
4a63c884 JF |
2855 | char *value; |
2856 | size_t namelen; | |
2857 | size_t valuelen; | |
4670cf89 | 2858 | |
4a63c884 JF |
2859 | name = chomp_string(name); |
2860 | namelen = strcspn(name, separators); | |
2861 | ||
2862 | if (name[namelen]) { | |
2863 | name[namelen] = 0; | |
2864 | value = chomp_string(name + namelen + 1); | |
d0cea5f9 | 2865 | valuelen = strlen(value); |
4670cf89 | 2866 | |
d0cea5f9 | 2867 | } else { |
d0cea5f9 JF |
2868 | value = ""; |
2869 | valuelen = 0; | |
4670cf89 | 2870 | } |
d0cea5f9 | 2871 | |
3c3801c2 | 2872 | state = read_property(name, namelen, value, valuelen); |
4670cf89 JF |
2873 | } |
2874 | ||
d0cea5f9 JF |
2875 | if (state != ERR && ferror(pipe)) |
2876 | state = ERR; | |
4670cf89 JF |
2877 | |
2878 | pclose(pipe); | |
2879 | ||
d0cea5f9 | 2880 | return state; |
4670cf89 JF |
2881 | } |
2882 | ||
d0cea5f9 | 2883 | |
6b161b31 JF |
2884 | /* |
2885 | * Main | |
2886 | */ | |
2887 | ||
b5c9e67f | 2888 | static void __NORETURN |
6b161b31 JF |
2889 | quit(int sig) |
2890 | { | |
8855ada4 JF |
2891 | /* XXX: Restore tty modes and let the OS cleanup the rest! */ |
2892 | if (cursed) | |
2893 | endwin(); | |
6b161b31 JF |
2894 | exit(0); |
2895 | } | |
2896 | ||
c6704a4e JF |
2897 | static void __NORETURN |
2898 | die(const char *err, ...) | |
6b161b31 JF |
2899 | { |
2900 | va_list args; | |
2901 | ||
2902 | endwin(); | |
2903 | ||
2904 | va_start(args, err); | |
2905 | fputs("tig: ", stderr); | |
2906 | vfprintf(stderr, err, args); | |
2907 | fputs("\n", stderr); | |
2908 | va_end(args); | |
2909 | ||
2910 | exit(1); | |
2911 | } | |
2912 | ||
2913 | int | |
2914 | main(int argc, char *argv[]) | |
2915 | { | |
1ba2ae4b | 2916 | struct view *view; |
6b161b31 | 2917 | enum request request; |
1ba2ae4b | 2918 | size_t i; |
6b161b31 JF |
2919 | |
2920 | signal(SIGINT, quit); | |
2921 | ||
6b68fd24 JF |
2922 | if (setlocale(LC_ALL, "")) { |
2923 | string_copy(opt_codeset, nl_langinfo(CODESET)); | |
2924 | } | |
2925 | ||
660e09ad JF |
2926 | if (load_options() == ERR) |
2927 | die("Failed to load user config."); | |
2928 | ||
2929 | /* Load the repo config file so options can be overwritten from | |
afdc35b3 | 2930 | * the command line. */ |
14c778a6 | 2931 | if (load_repo_config() == ERR) |
afdc35b3 JF |
2932 | die("Failed to load repo config."); |
2933 | ||
8855ada4 | 2934 | if (!parse_options(argc, argv)) |
6b161b31 JF |
2935 | return 0; |
2936 | ||
6b68fd24 JF |
2937 | if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) { |
2938 | opt_iconv = iconv_open(opt_codeset, opt_encoding); | |
2939 | if (opt_iconv == (iconv_t) -1) | |
2940 | die("Failed to initialize character set conversion"); | |
2941 | } | |
2942 | ||
c34d9c9f JF |
2943 | if (load_refs() == ERR) |
2944 | die("Failed to load refs."); | |
2945 | ||
7bb55251 JF |
2946 | /* Require a git repository unless when running in pager mode. */ |
2947 | if (refs_size == 0 && opt_request != REQ_VIEW_PAGER) | |
2948 | die("Not a git repository"); | |
2949 | ||
1ba2ae4b JF |
2950 | for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++) |
2951 | view->cmd_env = getenv(view->cmd_env); | |
2952 | ||
6b161b31 JF |
2953 | request = opt_request; |
2954 | ||
2955 | init_display(); | |
b801d8b2 JF |
2956 | |
2957 | while (view_driver(display[current_view], request)) { | |
6b161b31 | 2958 | int key; |
b801d8b2 JF |
2959 | int i; |
2960 | ||
6b161b31 JF |
2961 | foreach_view (view, i) |
2962 | update_view(view); | |
b801d8b2 JF |
2963 | |
2964 | /* Refresh, accept single keystroke of input */ | |
6b161b31 | 2965 | key = wgetch(status_win); |
04e2b7b2 JF |
2966 | |
2967 | request = get_keybinding(display[current_view]->keymap, key); | |
03a93dbb | 2968 | |
6706b2ba | 2969 | /* Some low-level request handling. This keeps access to |
fac7db6c JF |
2970 | * status_win restricted. */ |
2971 | switch (request) { | |
2972 | case REQ_PROMPT: | |
ef5404a4 | 2973 | if (read_prompt() == ERR) |
6a7bb912 | 2974 | request = REQ_SCREEN_UPDATE; |
fac7db6c JF |
2975 | break; |
2976 | ||
2977 | case REQ_SCREEN_RESIZE: | |
2978 | { | |
2979 | int height, width; | |
2980 | ||
2981 | getmaxyx(stdscr, height, width); | |
2982 | ||
2983 | /* Resize the status view and let the view driver take | |
2984 | * care of resizing the displayed views. */ | |
2985 | wresize(status_win, 1, width); | |
2986 | mvwin(status_win, height - 1, 0); | |
2987 | wrefresh(status_win); | |
2988 | break; | |
2989 | } | |
2990 | default: | |
2991 | break; | |
03a93dbb | 2992 | } |
b801d8b2 JF |
2993 | } |
2994 | ||
2995 | quit(0); | |
2996 | ||
2997 | return 0; | |
2998 | } |