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 | |
4af34daa JF |
33 | #include <sys/types.h> |
34 | #include <regex.h> | |
35 | ||
6b68fd24 JF |
36 | #include <locale.h> |
37 | #include <langinfo.h> | |
38 | #include <iconv.h> | |
39 | ||
b801d8b2 | 40 | #include <curses.h> |
b801d8b2 | 41 | |
e2da526d JF |
42 | #if __GNUC__ >= 3 |
43 | #define __NORETURN __attribute__((__noreturn__)) | |
44 | #else | |
45 | #define __NORETURN | |
46 | #endif | |
47 | ||
48 | static void __NORETURN die(const char *err, ...); | |
b801d8b2 | 49 | static void report(const char *msg, ...); |
4a63c884 | 50 | static int read_properties(FILE *pipe, const char *separators, int (*read)(char *, int, char *, int)); |
1ba2ae4b | 51 | static void set_nonblocking_input(bool loading); |
10e290ee | 52 | static size_t utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed); |
6b161b31 JF |
53 | |
54 | #define ABS(x) ((x) >= 0 ? (x) : -(x)) | |
55 | #define MIN(x, y) ((x) < (y) ? (x) : (y)) | |
56 | ||
57 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) | |
58 | #define STRING_SIZE(x) (sizeof(x) - 1) | |
b76c2afc | 59 | |
17482b11 | 60 | #define SIZEOF_STR 1024 /* Default string size. */ |
2e8488b4 | 61 | #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */ |
10446330 | 62 | #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL */ |
54efb62b | 63 | #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */ |
b801d8b2 | 64 | |
2b757533 JF |
65 | /* Size of rev graph with no "padding" columns */ |
66 | #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2)) | |
67 | ||
82e78006 JF |
68 | /* This color name can be used to refer to the default term colors. */ |
69 | #define COLOR_DEFAULT (-1) | |
78c70acd | 70 | |
6b68fd24 JF |
71 | #define ICONV_NONE ((iconv_t) -1) |
72 | ||
82e78006 | 73 | /* The format and size of the date column in the main view. */ |
4c6fabc2 | 74 | #define DATE_FORMAT "%Y-%m-%d %H:%M" |
6b161b31 | 75 | #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ") |
4c6fabc2 | 76 | |
10e290ee JF |
77 | #define AUTHOR_COLS 20 |
78 | ||
a28bcc22 | 79 | /* The default interval between line numbers. */ |
4a2909a7 | 80 | #define NUMBER_INTERVAL 1 |
82e78006 | 81 | |
6706b2ba JF |
82 | #define TABSIZE 8 |
83 | ||
a28bcc22 JF |
84 | #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3) |
85 | ||
8eb62770 JF |
86 | #define TIG_LS_REMOTE \ |
87 | "git ls-remote . 2>/dev/null" | |
88 | ||
89 | #define TIG_DIFF_CMD \ | |
73fb51d5 | 90 | "git show --root --patch-with-stat --find-copies-harder -B -C %s 2>/dev/null" |
8eb62770 JF |
91 | |
92 | #define TIG_LOG_CMD \ | |
8fee6614 | 93 | "git log --cc --stat -n100 %s 2>/dev/null" |
8eb62770 JF |
94 | |
95 | #define TIG_MAIN_CMD \ | |
8fee6614 | 96 | "git log --topo-order --pretty=raw %s 2>/dev/null" |
8eb62770 | 97 | |
e733ee54 JF |
98 | #define TIG_TREE_CMD \ |
99 | "git ls-tree %s %s" | |
100 | ||
101 | #define TIG_BLOB_CMD \ | |
102 | "git cat-file blob %s" | |
103 | ||
8eb62770 JF |
104 | /* XXX: Needs to be defined to the empty string. */ |
105 | #define TIG_HELP_CMD "" | |
106 | #define TIG_PAGER_CMD "" | |
107 | ||
8855ada4 | 108 | /* Some ascii-shorthands fitted into the ncurses namespace. */ |
a28bcc22 JF |
109 | #define KEY_TAB '\t' |
110 | #define KEY_RETURN '\r' | |
4a2909a7 JF |
111 | #define KEY_ESC 27 |
112 | ||
6706b2ba | 113 | |
c34d9c9f | 114 | struct ref { |
468876c9 | 115 | char *name; /* Ref name; tag or head names are shortened. */ |
10446330 | 116 | char id[SIZEOF_REV]; /* Commit SHA1 ID */ |
468876c9 JF |
117 | unsigned int tag:1; /* Is it a tag? */ |
118 | unsigned int next:1; /* For ref lists: are there more refs? */ | |
c34d9c9f JF |
119 | }; |
120 | ||
ff26aa29 | 121 | static struct ref **get_refs(char *id); |
4c6fabc2 | 122 | |
660e09ad JF |
123 | struct int_map { |
124 | const char *name; | |
125 | int namelen; | |
126 | int value; | |
127 | }; | |
128 | ||
129 | static int | |
130 | set_from_int_map(struct int_map *map, size_t map_size, | |
131 | int *value, const char *name, int namelen) | |
132 | { | |
133 | ||
134 | int i; | |
135 | ||
136 | for (i = 0; i < map_size; i++) | |
137 | if (namelen == map[i].namelen && | |
138 | !strncasecmp(name, map[i].name, namelen)) { | |
139 | *value = map[i].value; | |
140 | return OK; | |
141 | } | |
142 | ||
143 | return ERR; | |
144 | } | |
145 | ||
6706b2ba | 146 | |
03a93dbb JF |
147 | /* |
148 | * String helpers | |
149 | */ | |
78c70acd | 150 | |
82e78006 | 151 | static inline void |
9a48919b | 152 | string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen) |
82e78006 | 153 | { |
9a48919b JF |
154 | if (srclen > dstlen - 1) |
155 | srclen = dstlen - 1; | |
03a93dbb | 156 | |
9a48919b JF |
157 | strncpy(dst, src, srclen); |
158 | dst[srclen] = 0; | |
82e78006 JF |
159 | } |
160 | ||
9a48919b JF |
161 | /* Shorthands for safely copying into a fixed buffer. */ |
162 | ||
82e78006 | 163 | #define string_copy(dst, src) \ |
9a48919b JF |
164 | string_ncopy_do(dst, sizeof(dst), src, sizeof(dst)) |
165 | ||
166 | #define string_ncopy(dst, src, srclen) \ | |
167 | string_ncopy_do(dst, sizeof(dst), src, srclen) | |
82e78006 | 168 | |
4a63c884 JF |
169 | static char * |
170 | chomp_string(char *name) | |
171 | { | |
172 | int namelen; | |
173 | ||
174 | while (isspace(*name)) | |
175 | name++; | |
176 | ||
177 | namelen = strlen(name) - 1; | |
178 | while (namelen > 0 && isspace(name[namelen])) | |
179 | name[namelen--] = 0; | |
180 | ||
181 | return name; | |
182 | } | |
183 | ||
cc2d1364 | 184 | static bool |
d65ced0d | 185 | string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...) |
cc2d1364 JF |
186 | { |
187 | va_list args; | |
d65ced0d | 188 | size_t pos = bufpos ? *bufpos : 0; |
cc2d1364 JF |
189 | |
190 | va_start(args, fmt); | |
191 | pos += vsnprintf(buf + pos, bufsize - pos, fmt, args); | |
192 | va_end(args); | |
193 | ||
194 | if (bufpos) | |
195 | *bufpos = pos; | |
196 | ||
197 | return pos >= bufsize ? FALSE : TRUE; | |
198 | } | |
199 | ||
200 | #define string_format(buf, fmt, args...) \ | |
201 | string_nformat(buf, sizeof(buf), NULL, fmt, args) | |
202 | ||
203 | #define string_format_from(buf, from, fmt, args...) \ | |
204 | string_nformat(buf, sizeof(buf), from, fmt, args) | |
6706b2ba | 205 | |
201f5a18 JF |
206 | static int |
207 | string_enum_compare(const char *str1, const char *str2, int len) | |
208 | { | |
209 | size_t i; | |
210 | ||
211 | #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.') | |
212 | ||
213 | /* Diff-Header == DIFF_HEADER */ | |
214 | for (i = 0; i < len; i++) { | |
215 | if (toupper(str1[i]) == toupper(str2[i])) | |
216 | continue; | |
217 | ||
218 | if (string_enum_sep(str1[i]) && | |
219 | string_enum_sep(str2[i])) | |
220 | continue; | |
221 | ||
222 | return str1[i] - str2[i]; | |
223 | } | |
224 | ||
225 | return 0; | |
226 | } | |
227 | ||
03a93dbb JF |
228 | /* Shell quoting |
229 | * | |
230 | * NOTE: The following is a slightly modified copy of the git project's shell | |
231 | * quoting routines found in the quote.c file. | |
232 | * | |
233 | * Help to copy the thing properly quoted for the shell safety. any single | |
234 | * quote is replaced with '\'', any exclamation point is replaced with '\!', | |
235 | * and the whole thing is enclosed in a | |
236 | * | |
237 | * E.g. | |
238 | * original sq_quote result | |
239 | * name ==> name ==> 'name' | |
240 | * a b ==> a b ==> 'a b' | |
241 | * a'b ==> a'\''b ==> 'a'\''b' | |
242 | * a!b ==> a'\!'b ==> 'a'\!'b' | |
243 | */ | |
244 | ||
245 | static size_t | |
17482b11 | 246 | sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src) |
03a93dbb JF |
247 | { |
248 | char c; | |
249 | ||
17482b11 | 250 | #define BUFPUT(x) do { if (bufsize < SIZEOF_STR) buf[bufsize++] = (x); } while (0) |
03a93dbb JF |
251 | |
252 | BUFPUT('\''); | |
253 | while ((c = *src++)) { | |
254 | if (c == '\'' || c == '!') { | |
255 | BUFPUT('\''); | |
256 | BUFPUT('\\'); | |
257 | BUFPUT(c); | |
258 | BUFPUT('\''); | |
259 | } else { | |
260 | BUFPUT(c); | |
261 | } | |
262 | } | |
263 | BUFPUT('\''); | |
264 | ||
265 | return bufsize; | |
266 | } | |
267 | ||
82e78006 | 268 | |
24b5b3e0 JF |
269 | /* |
270 | * User requests | |
271 | */ | |
272 | ||
273 | #define REQ_INFO \ | |
274 | /* XXX: Keep the view request first and in sync with views[]. */ \ | |
275 | REQ_GROUP("View switching") \ | |
276 | REQ_(VIEW_MAIN, "Show main view"), \ | |
277 | REQ_(VIEW_DIFF, "Show diff view"), \ | |
278 | REQ_(VIEW_LOG, "Show log view"), \ | |
e733ee54 JF |
279 | REQ_(VIEW_TREE, "Show tree view"), \ |
280 | REQ_(VIEW_BLOB, "Show blob view"), \ | |
24b5b3e0 JF |
281 | REQ_(VIEW_HELP, "Show help page"), \ |
282 | REQ_(VIEW_PAGER, "Show pager view"), \ | |
283 | \ | |
284 | REQ_GROUP("View manipulation") \ | |
285 | REQ_(ENTER, "Enter current line and scroll"), \ | |
286 | REQ_(NEXT, "Move to next"), \ | |
287 | REQ_(PREVIOUS, "Move to previous"), \ | |
288 | REQ_(VIEW_NEXT, "Move focus to next view"), \ | |
289 | REQ_(VIEW_CLOSE, "Close the current view"), \ | |
290 | REQ_(QUIT, "Close all views and quit"), \ | |
291 | \ | |
292 | REQ_GROUP("Cursor navigation") \ | |
293 | REQ_(MOVE_UP, "Move cursor one line up"), \ | |
294 | REQ_(MOVE_DOWN, "Move cursor one line down"), \ | |
295 | REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \ | |
296 | REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \ | |
297 | REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \ | |
298 | REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \ | |
299 | \ | |
300 | REQ_GROUP("Scrolling") \ | |
301 | REQ_(SCROLL_LINE_UP, "Scroll one line up"), \ | |
302 | REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \ | |
303 | REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \ | |
304 | REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \ | |
305 | \ | |
4af34daa JF |
306 | REQ_GROUP("Searching") \ |
307 | REQ_(SEARCH, "Search the view"), \ | |
308 | REQ_(SEARCH_BACK, "Search backwards in the view"), \ | |
309 | REQ_(FIND_NEXT, "Find next search match"), \ | |
310 | REQ_(FIND_PREV, "Find previous search match"), \ | |
311 | \ | |
24b5b3e0 | 312 | REQ_GROUP("Misc") \ |
1d754561 | 313 | REQ_(NONE, "Do nothing"), \ |
24b5b3e0 | 314 | REQ_(PROMPT, "Bring up the prompt"), \ |
24b5b3e0 JF |
315 | REQ_(SCREEN_REDRAW, "Redraw the screen"), \ |
316 | REQ_(SCREEN_RESIZE, "Resize the screen"), \ | |
317 | REQ_(SHOW_VERSION, "Show version information"), \ | |
318 | REQ_(STOP_LOADING, "Stop all loading views"), \ | |
54efb62b | 319 | REQ_(TOGGLE_LINENO, "Toggle line numbers"), \ |
04e2b7b2 | 320 | REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization") |
24b5b3e0 JF |
321 | |
322 | ||
323 | /* User action requests. */ | |
324 | enum request { | |
325 | #define REQ_GROUP(help) | |
326 | #define REQ_(req, help) REQ_##req | |
327 | ||
328 | /* Offset all requests to avoid conflicts with ncurses getch values. */ | |
329 | REQ_OFFSET = KEY_MAX + 1, | |
04e2b7b2 JF |
330 | REQ_INFO, |
331 | REQ_UNKNOWN, | |
24b5b3e0 JF |
332 | |
333 | #undef REQ_GROUP | |
334 | #undef REQ_ | |
335 | }; | |
336 | ||
337 | struct request_info { | |
338 | enum request request; | |
04e2b7b2 JF |
339 | char *name; |
340 | int namelen; | |
24b5b3e0 JF |
341 | char *help; |
342 | }; | |
343 | ||
344 | static struct request_info req_info[] = { | |
04e2b7b2 JF |
345 | #define REQ_GROUP(help) { 0, NULL, 0, (help) }, |
346 | #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) } | |
24b5b3e0 JF |
347 | REQ_INFO |
348 | #undef REQ_GROUP | |
349 | #undef REQ_ | |
350 | }; | |
351 | ||
04e2b7b2 JF |
352 | static enum request |
353 | get_request(const char *name) | |
354 | { | |
355 | int namelen = strlen(name); | |
356 | int i; | |
357 | ||
358 | for (i = 0; i < ARRAY_SIZE(req_info); i++) | |
359 | if (req_info[i].namelen == namelen && | |
360 | !string_enum_compare(req_info[i].name, name, namelen)) | |
361 | return req_info[i].request; | |
362 | ||
363 | return REQ_UNKNOWN; | |
364 | } | |
365 | ||
366 | ||
8eb62770 JF |
367 | /* |
368 | * Options | |
369 | */ | |
b76c2afc | 370 | |
4b8c01a3 JF |
371 | static const char usage[] = |
372 | VERSION " (" __DATE__ ")\n" | |
373 | "\n" | |
374 | "Usage: tig [options]\n" | |
375 | " or: tig [options] [--] [git log options]\n" | |
376 | " or: tig [options] log [git log options]\n" | |
377 | " or: tig [options] diff [git diff options]\n" | |
378 | " or: tig [options] show [git show options]\n" | |
379 | " or: tig [options] < [git command output]\n" | |
380 | "\n" | |
381 | "Options:\n" | |
382 | " -l Start up in log view\n" | |
383 | " -d Start up in diff view\n" | |
384 | " -n[I], --line-number[=I] Show line numbers with given interval\n" | |
b3c965c9 | 385 | " -b[N], --tab-size[=N] Set number of spaces for tab expansion\n" |
4b8c01a3 JF |
386 | " -- Mark end of tig options\n" |
387 | " -v, --version Show version and exit\n" | |
388 | " -h, --help Show help message and exit\n"; | |
389 | ||
6706b2ba | 390 | /* Option and state variables. */ |
92d30f5c JF |
391 | static bool opt_line_number = FALSE; |
392 | static bool opt_rev_graph = TRUE; | |
393 | static int opt_num_interval = NUMBER_INTERVAL; | |
394 | static int opt_tab_size = TABSIZE; | |
395 | static enum request opt_request = REQ_VIEW_MAIN; | |
396 | static char opt_cmd[SIZEOF_STR] = ""; | |
e733ee54 | 397 | static char opt_path[SIZEOF_STR] = ""; |
92d30f5c JF |
398 | static FILE *opt_pipe = NULL; |
399 | static char opt_encoding[20] = "UTF-8"; | |
400 | static bool opt_utf8 = TRUE; | |
401 | static char opt_codeset[20] = "UTF-8"; | |
402 | static iconv_t opt_iconv = ICONV_NONE; | |
403 | static char opt_search[SIZEOF_STR] = ""; | |
b76c2afc | 404 | |
6dbf6c19 JF |
405 | enum option_type { |
406 | OPT_NONE, | |
407 | OPT_INT, | |
408 | }; | |
409 | ||
410 | static bool | |
411 | check_option(char *opt, char short_name, char *name, enum option_type type, ...) | |
412 | { | |
413 | va_list args; | |
414 | char *value = ""; | |
415 | int *number; | |
416 | ||
417 | if (opt[0] != '-') | |
418 | return FALSE; | |
419 | ||
420 | if (opt[1] == '-') { | |
421 | int namelen = strlen(name); | |
422 | ||
423 | opt += 2; | |
424 | ||
425 | if (strncmp(opt, name, namelen)) | |
426 | return FALSE; | |
427 | ||
428 | if (opt[namelen] == '=') | |
429 | value = opt + namelen + 1; | |
430 | ||
431 | } else { | |
432 | if (!short_name || opt[1] != short_name) | |
433 | return FALSE; | |
434 | value = opt + 2; | |
435 | } | |
436 | ||
437 | va_start(args, type); | |
438 | if (type == OPT_INT) { | |
439 | number = va_arg(args, int *); | |
440 | if (isdigit(*value)) | |
441 | *number = atoi(value); | |
442 | } | |
443 | va_end(args); | |
444 | ||
445 | return TRUE; | |
446 | } | |
447 | ||
b76c2afc | 448 | /* Returns the index of log or diff command or -1 to exit. */ |
8855ada4 | 449 | static bool |
b76c2afc JF |
450 | parse_options(int argc, char *argv[]) |
451 | { | |
452 | int i; | |
453 | ||
454 | for (i = 1; i < argc; i++) { | |
455 | char *opt = argv[i]; | |
456 | ||
6b161b31 | 457 | if (!strcmp(opt, "-l")) { |
4a2909a7 | 458 | opt_request = REQ_VIEW_LOG; |
6b161b31 JF |
459 | continue; |
460 | } | |
b76c2afc | 461 | |
6b161b31 | 462 | if (!strcmp(opt, "-d")) { |
4a2909a7 | 463 | opt_request = REQ_VIEW_DIFF; |
6b161b31 JF |
464 | continue; |
465 | } | |
b76c2afc | 466 | |
6dbf6c19 | 467 | if (check_option(opt, 'n', "line-number", OPT_INT, &opt_num_interval)) { |
6b161b31 JF |
468 | opt_line_number = TRUE; |
469 | continue; | |
470 | } | |
b76c2afc | 471 | |
6dbf6c19 JF |
472 | if (check_option(opt, 'b', "tab-size", OPT_INT, &opt_tab_size)) { |
473 | opt_tab_size = MIN(opt_tab_size, TABSIZE); | |
6706b2ba JF |
474 | continue; |
475 | } | |
476 | ||
6dbf6c19 | 477 | if (check_option(opt, 'v', "version", OPT_NONE)) { |
b76c2afc | 478 | printf("tig version %s\n", VERSION); |
8855ada4 | 479 | return FALSE; |
6b161b31 | 480 | } |
b76c2afc | 481 | |
6dbf6c19 | 482 | if (check_option(opt, 'h', "help", OPT_NONE)) { |
4b8c01a3 JF |
483 | printf(usage); |
484 | return FALSE; | |
485 | } | |
486 | ||
6908bdbd JF |
487 | if (!strcmp(opt, "--")) { |
488 | i++; | |
489 | break; | |
490 | } | |
03a93dbb | 491 | |
8855ada4 JF |
492 | if (!strcmp(opt, "log") || |
493 | !strcmp(opt, "diff") || | |
494 | !strcmp(opt, "show")) { | |
495 | opt_request = opt[0] == 'l' | |
496 | ? REQ_VIEW_LOG : REQ_VIEW_DIFF; | |
497 | break; | |
498 | } | |
499 | ||
03a93dbb | 500 | if (opt[0] && opt[0] != '-') |
6908bdbd | 501 | break; |
6b161b31 | 502 | |
bf174187 | 503 | die("unknown option '%s'\n\n%s", opt, usage); |
b76c2afc JF |
504 | } |
505 | ||
6908bdbd | 506 | if (!isatty(STDIN_FILENO)) { |
6908bdbd JF |
507 | opt_request = REQ_VIEW_PAGER; |
508 | opt_pipe = stdin; | |
509 | ||
510 | } else if (i < argc) { | |
511 | size_t buf_size; | |
512 | ||
6908bdbd | 513 | if (opt_request == REQ_VIEW_MAIN) |
8855ada4 JF |
514 | /* XXX: This is vulnerable to the user overriding |
515 | * options required for the main view parser. */ | |
6908bdbd JF |
516 | string_copy(opt_cmd, "git log --stat --pretty=raw"); |
517 | else | |
518 | string_copy(opt_cmd, "git"); | |
519 | buf_size = strlen(opt_cmd); | |
520 | ||
521 | while (buf_size < sizeof(opt_cmd) && i < argc) { | |
522 | opt_cmd[buf_size++] = ' '; | |
523 | buf_size = sq_quote(opt_cmd, buf_size, argv[i++]); | |
524 | } | |
525 | ||
526 | if (buf_size >= sizeof(opt_cmd)) | |
527 | die("command too long"); | |
528 | ||
529 | opt_cmd[buf_size] = 0; | |
530 | ||
531 | } | |
532 | ||
afdc35b3 JF |
533 | if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8")) |
534 | opt_utf8 = FALSE; | |
535 | ||
8855ada4 | 536 | return TRUE; |
b76c2afc JF |
537 | } |
538 | ||
539 | ||
54efb62b JF |
540 | /* |
541 | * Line-oriented content detection. | |
542 | */ | |
543 | ||
2e8488b4 | 544 | #define LINE_INFO \ |
660e09ad | 545 | LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
546 | LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
547 | LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
548 | LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \ | |
660e09ad JF |
549 | LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
550 | LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
551 | LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
552 | LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
553 | LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
554 | LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
555 | LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
556 | LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
557 | LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
558 | LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
6908bdbd | 559 | LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
8855ada4 | 560 | LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
6908bdbd JF |
561 | LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
562 | LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
8855ada4 JF |
563 | LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
564 | LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
7b99a34c | 565 | LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
566 | LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \ |
567 | LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
568 | LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
8855ada4 | 569 | LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
a28bcc22 | 570 | LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
a28bcc22 | 571 | LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
d4d8de8f | 572 | LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
573 | LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \ |
574 | LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \ | |
575 | LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
6b161b31 JF |
576 | LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \ |
577 | LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \ | |
a28bcc22 JF |
578 | LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
579 | LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
580 | LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \ | |
c34d9c9f JF |
581 | LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
582 | LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \ | |
660e09ad | 583 | LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \ |
e733ee54 JF |
584 | LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \ |
585 | LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL) | |
660e09ad | 586 | |
78c70acd | 587 | enum line_type { |
2e8488b4 JF |
588 | #define LINE(type, line, fg, bg, attr) \ |
589 | LINE_##type | |
590 | LINE_INFO | |
591 | #undef LINE | |
78c70acd JF |
592 | }; |
593 | ||
594 | struct line_info { | |
660e09ad JF |
595 | const char *name; /* Option name. */ |
596 | int namelen; /* Size of option name. */ | |
4685845e | 597 | const char *line; /* The start of line to match. */ |
2e8488b4 JF |
598 | int linelen; /* Size of string to match. */ |
599 | int fg, bg, attr; /* Color and text attributes for the lines. */ | |
78c70acd JF |
600 | }; |
601 | ||
2e8488b4 | 602 | static struct line_info line_info[] = { |
78c70acd | 603 | #define LINE(type, line, fg, bg, attr) \ |
660e09ad | 604 | { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) } |
2e8488b4 JF |
605 | LINE_INFO |
606 | #undef LINE | |
78c70acd JF |
607 | }; |
608 | ||
2e8488b4 JF |
609 | static enum line_type |
610 | get_line_type(char *line) | |
78c70acd JF |
611 | { |
612 | int linelen = strlen(line); | |
a28bcc22 | 613 | enum line_type type; |
78c70acd | 614 | |
a28bcc22 | 615 | for (type = 0; type < ARRAY_SIZE(line_info); type++) |
2e8488b4 | 616 | /* Case insensitive search matches Signed-off-by lines better. */ |
a28bcc22 JF |
617 | if (linelen >= line_info[type].linelen && |
618 | !strncasecmp(line_info[type].line, line, line_info[type].linelen)) | |
619 | return type; | |
78c70acd | 620 | |
2e8488b4 | 621 | return LINE_DEFAULT; |
78c70acd JF |
622 | } |
623 | ||
2e8488b4 | 624 | static inline int |
78c70acd JF |
625 | get_line_attr(enum line_type type) |
626 | { | |
2e8488b4 JF |
627 | assert(type < ARRAY_SIZE(line_info)); |
628 | return COLOR_PAIR(type) | line_info[type].attr; | |
78c70acd JF |
629 | } |
630 | ||
660e09ad JF |
631 | static struct line_info * |
632 | get_line_info(char *name, int namelen) | |
633 | { | |
634 | enum line_type type; | |
660e09ad JF |
635 | |
636 | for (type = 0; type < ARRAY_SIZE(line_info); type++) | |
637 | if (namelen == line_info[type].namelen && | |
201f5a18 | 638 | !string_enum_compare(line_info[type].name, name, namelen)) |
660e09ad JF |
639 | return &line_info[type]; |
640 | ||
641 | return NULL; | |
642 | } | |
643 | ||
78c70acd JF |
644 | static void |
645 | init_colors(void) | |
646 | { | |
82e78006 JF |
647 | int default_bg = COLOR_BLACK; |
648 | int default_fg = COLOR_WHITE; | |
a28bcc22 | 649 | enum line_type type; |
78c70acd JF |
650 | |
651 | start_color(); | |
652 | ||
653 | if (use_default_colors() != ERR) { | |
82e78006 JF |
654 | default_bg = -1; |
655 | default_fg = -1; | |
78c70acd JF |
656 | } |
657 | ||
a28bcc22 JF |
658 | for (type = 0; type < ARRAY_SIZE(line_info); type++) { |
659 | struct line_info *info = &line_info[type]; | |
82e78006 JF |
660 | int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg; |
661 | int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg; | |
78c70acd | 662 | |
a28bcc22 | 663 | init_pair(type, fg, bg); |
78c70acd JF |
664 | } |
665 | } | |
666 | ||
fe7233c3 JF |
667 | struct line { |
668 | enum line_type type; | |
3c571d67 JF |
669 | |
670 | /* State flags */ | |
671 | unsigned int selected:1; | |
672 | ||
fe7233c3 JF |
673 | void *data; /* User data */ |
674 | }; | |
675 | ||
78c70acd | 676 | |
1899507c | 677 | /* |
37157fa0 JF |
678 | * Keys |
679 | */ | |
680 | ||
93a97d86 | 681 | struct keybinding { |
37157fa0 | 682 | int alias; |
93a97d86 | 683 | enum request request; |
04e2b7b2 | 684 | struct keybinding *next; |
37157fa0 JF |
685 | }; |
686 | ||
93a97d86 | 687 | static struct keybinding default_keybindings[] = { |
37157fa0 JF |
688 | /* View switching */ |
689 | { 'm', REQ_VIEW_MAIN }, | |
690 | { 'd', REQ_VIEW_DIFF }, | |
691 | { 'l', REQ_VIEW_LOG }, | |
e733ee54 | 692 | { 't', REQ_VIEW_TREE }, |
0001fc34 | 693 | { 'f', REQ_VIEW_BLOB }, |
37157fa0 JF |
694 | { 'p', REQ_VIEW_PAGER }, |
695 | { 'h', REQ_VIEW_HELP }, | |
37157fa0 JF |
696 | |
697 | /* View manipulation */ | |
698 | { 'q', REQ_VIEW_CLOSE }, | |
699 | { KEY_TAB, REQ_VIEW_NEXT }, | |
700 | { KEY_RETURN, REQ_ENTER }, | |
701 | { KEY_UP, REQ_PREVIOUS }, | |
702 | { KEY_DOWN, REQ_NEXT }, | |
703 | ||
704 | /* Cursor navigation */ | |
705 | { 'k', REQ_MOVE_UP }, | |
706 | { 'j', REQ_MOVE_DOWN }, | |
707 | { KEY_HOME, REQ_MOVE_FIRST_LINE }, | |
708 | { KEY_END, REQ_MOVE_LAST_LINE }, | |
709 | { KEY_NPAGE, REQ_MOVE_PAGE_DOWN }, | |
710 | { ' ', REQ_MOVE_PAGE_DOWN }, | |
711 | { KEY_PPAGE, REQ_MOVE_PAGE_UP }, | |
712 | { 'b', REQ_MOVE_PAGE_UP }, | |
713 | { '-', REQ_MOVE_PAGE_UP }, | |
714 | ||
715 | /* Scrolling */ | |
716 | { KEY_IC, REQ_SCROLL_LINE_UP }, | |
717 | { KEY_DC, REQ_SCROLL_LINE_DOWN }, | |
718 | { 'w', REQ_SCROLL_PAGE_UP }, | |
719 | { 's', REQ_SCROLL_PAGE_DOWN }, | |
720 | ||
4af34daa JF |
721 | /* Searching */ |
722 | { '/', REQ_SEARCH }, | |
723 | { '?', REQ_SEARCH_BACK }, | |
724 | { 'n', REQ_FIND_NEXT }, | |
725 | { 'N', REQ_FIND_PREV }, | |
726 | ||
37157fa0 JF |
727 | /* Misc */ |
728 | { 'Q', REQ_QUIT }, | |
729 | { 'z', REQ_STOP_LOADING }, | |
730 | { 'v', REQ_SHOW_VERSION }, | |
731 | { 'r', REQ_SCREEN_REDRAW }, | |
904e68d8 | 732 | { '.', REQ_TOGGLE_LINENO }, |
73fb51d5 | 733 | { 'g', REQ_TOGGLE_REV_GRAPH }, |
37157fa0 JF |
734 | { ':', REQ_PROMPT }, |
735 | ||
736 | /* wgetch() with nodelay() enabled returns ERR when there's no input. */ | |
1d754561 | 737 | { ERR, REQ_NONE }, |
37157fa0 | 738 | |
1d754561 | 739 | /* Using the ncurses SIGWINCH handler. */ |
37157fa0 JF |
740 | { KEY_RESIZE, REQ_SCREEN_RESIZE }, |
741 | }; | |
742 | ||
04e2b7b2 JF |
743 | #define KEYMAP_INFO \ |
744 | KEYMAP_(GENERIC), \ | |
745 | KEYMAP_(MAIN), \ | |
746 | KEYMAP_(DIFF), \ | |
747 | KEYMAP_(LOG), \ | |
e733ee54 JF |
748 | KEYMAP_(TREE), \ |
749 | KEYMAP_(BLOB), \ | |
04e2b7b2 JF |
750 | KEYMAP_(PAGER), \ |
751 | KEYMAP_(HELP) \ | |
752 | ||
753 | enum keymap { | |
754 | #define KEYMAP_(name) KEYMAP_##name | |
755 | KEYMAP_INFO | |
756 | #undef KEYMAP_ | |
757 | }; | |
758 | ||
759 | static struct int_map keymap_table[] = { | |
760 | #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name } | |
761 | KEYMAP_INFO | |
762 | #undef KEYMAP_ | |
763 | }; | |
764 | ||
765 | #define set_keymap(map, name) \ | |
766 | set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name)) | |
767 | ||
768 | static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)]; | |
769 | ||
770 | static void | |
771 | add_keybinding(enum keymap keymap, enum request request, int key) | |
772 | { | |
773 | struct keybinding *keybinding; | |
774 | ||
775 | keybinding = calloc(1, sizeof(*keybinding)); | |
776 | if (!keybinding) | |
777 | die("Failed to allocate keybinding"); | |
778 | ||
779 | keybinding->alias = key; | |
780 | keybinding->request = request; | |
781 | keybinding->next = keybindings[keymap]; | |
782 | keybindings[keymap] = keybinding; | |
783 | } | |
784 | ||
785 | /* Looks for a key binding first in the given map, then in the generic map, and | |
786 | * lastly in the default keybindings. */ | |
37157fa0 | 787 | static enum request |
04e2b7b2 | 788 | get_keybinding(enum keymap keymap, int key) |
37157fa0 | 789 | { |
04e2b7b2 | 790 | struct keybinding *kbd; |
37157fa0 JF |
791 | int i; |
792 | ||
04e2b7b2 JF |
793 | for (kbd = keybindings[keymap]; kbd; kbd = kbd->next) |
794 | if (kbd->alias == key) | |
795 | return kbd->request; | |
796 | ||
797 | for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next) | |
798 | if (kbd->alias == key) | |
799 | return kbd->request; | |
800 | ||
93a97d86 JF |
801 | for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) |
802 | if (default_keybindings[i].alias == key) | |
803 | return default_keybindings[i].request; | |
37157fa0 JF |
804 | |
805 | return (enum request) key; | |
806 | } | |
807 | ||
93a97d86 | 808 | |
37157fa0 JF |
809 | struct key { |
810 | char *name; | |
811 | int value; | |
812 | }; | |
813 | ||
814 | static struct key key_table[] = { | |
815 | { "Enter", KEY_RETURN }, | |
816 | { "Space", ' ' }, | |
817 | { "Backspace", KEY_BACKSPACE }, | |
818 | { "Tab", KEY_TAB }, | |
819 | { "Escape", KEY_ESC }, | |
820 | { "Left", KEY_LEFT }, | |
821 | { "Right", KEY_RIGHT }, | |
822 | { "Up", KEY_UP }, | |
823 | { "Down", KEY_DOWN }, | |
824 | { "Insert", KEY_IC }, | |
825 | { "Delete", KEY_DC }, | |
74f83ee6 | 826 | { "Hash", '#' }, |
37157fa0 JF |
827 | { "Home", KEY_HOME }, |
828 | { "End", KEY_END }, | |
829 | { "PageUp", KEY_PPAGE }, | |
830 | { "PageDown", KEY_NPAGE }, | |
831 | { "F1", KEY_F(1) }, | |
832 | { "F2", KEY_F(2) }, | |
833 | { "F3", KEY_F(3) }, | |
834 | { "F4", KEY_F(4) }, | |
835 | { "F5", KEY_F(5) }, | |
836 | { "F6", KEY_F(6) }, | |
837 | { "F7", KEY_F(7) }, | |
838 | { "F8", KEY_F(8) }, | |
839 | { "F9", KEY_F(9) }, | |
840 | { "F10", KEY_F(10) }, | |
841 | { "F11", KEY_F(11) }, | |
842 | { "F12", KEY_F(12) }, | |
843 | }; | |
844 | ||
04e2b7b2 JF |
845 | static int |
846 | get_key_value(const char *name) | |
847 | { | |
848 | int i; | |
849 | ||
850 | for (i = 0; i < ARRAY_SIZE(key_table); i++) | |
851 | if (!strcasecmp(key_table[i].name, name)) | |
852 | return key_table[i].value; | |
853 | ||
854 | if (strlen(name) == 1 && isprint(*name)) | |
855 | return (int) *name; | |
856 | ||
857 | return ERR; | |
858 | } | |
859 | ||
37157fa0 JF |
860 | static char * |
861 | get_key(enum request request) | |
862 | { | |
863 | static char buf[BUFSIZ]; | |
864 | static char key_char[] = "'X'"; | |
d65ced0d | 865 | size_t pos = 0; |
37157fa0 JF |
866 | char *sep = " "; |
867 | int i; | |
868 | ||
869 | buf[pos] = 0; | |
870 | ||
93a97d86 JF |
871 | for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) { |
872 | struct keybinding *keybinding = &default_keybindings[i]; | |
37157fa0 JF |
873 | char *seq = NULL; |
874 | int key; | |
875 | ||
93a97d86 | 876 | if (keybinding->request != request) |
37157fa0 JF |
877 | continue; |
878 | ||
879 | for (key = 0; key < ARRAY_SIZE(key_table); key++) | |
93a97d86 | 880 | if (key_table[key].value == keybinding->alias) |
37157fa0 JF |
881 | seq = key_table[key].name; |
882 | ||
883 | if (seq == NULL && | |
93a97d86 JF |
884 | keybinding->alias < 127 && |
885 | isprint(keybinding->alias)) { | |
886 | key_char[1] = (char) keybinding->alias; | |
37157fa0 JF |
887 | seq = key_char; |
888 | } | |
889 | ||
890 | if (!seq) | |
891 | seq = "'?'"; | |
892 | ||
893 | if (!string_format_from(buf, &pos, "%s%s", sep, seq)) | |
894 | return "Too many keybindings!"; | |
895 | sep = ", "; | |
896 | } | |
897 | ||
898 | return buf; | |
899 | } | |
900 | ||
901 | ||
902 | /* | |
1899507c JF |
903 | * User config file handling. |
904 | */ | |
905 | ||
5dc795f2 JF |
906 | static struct int_map color_map[] = { |
907 | #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name } | |
908 | COLOR_MAP(DEFAULT), | |
909 | COLOR_MAP(BLACK), | |
910 | COLOR_MAP(BLUE), | |
911 | COLOR_MAP(CYAN), | |
912 | COLOR_MAP(GREEN), | |
913 | COLOR_MAP(MAGENTA), | |
914 | COLOR_MAP(RED), | |
915 | COLOR_MAP(WHITE), | |
916 | COLOR_MAP(YELLOW), | |
917 | }; | |
918 | ||
9256ab05 JF |
919 | #define set_color(color, name) \ |
920 | set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name)) | |
660e09ad | 921 | |
5dc795f2 JF |
922 | static struct int_map attr_map[] = { |
923 | #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name } | |
924 | ATTR_MAP(NORMAL), | |
925 | ATTR_MAP(BLINK), | |
926 | ATTR_MAP(BOLD), | |
927 | ATTR_MAP(DIM), | |
928 | ATTR_MAP(REVERSE), | |
929 | ATTR_MAP(STANDOUT), | |
930 | ATTR_MAP(UNDERLINE), | |
931 | }; | |
932 | ||
9256ab05 JF |
933 | #define set_attribute(attr, name) \ |
934 | set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name)) | |
660e09ad | 935 | |
3c3801c2 JF |
936 | static int config_lineno; |
937 | static bool config_errors; | |
938 | static char *config_msg; | |
939 | ||
5bfd96c7 | 940 | /* Wants: object fgcolor bgcolor [attr] */ |
660e09ad | 941 | static int |
5bfd96c7 | 942 | option_color_command(int argc, char *argv[]) |
660e09ad | 943 | { |
bca8fcaa JF |
944 | struct line_info *info; |
945 | ||
9256ab05 JF |
946 | if (argc != 3 && argc != 4) { |
947 | config_msg = "Wrong number of arguments given to color command"; | |
948 | return ERR; | |
949 | } | |
950 | ||
951 | info = get_line_info(argv[0], strlen(argv[0])); | |
bca8fcaa JF |
952 | if (!info) { |
953 | config_msg = "Unknown color name"; | |
954 | return ERR; | |
955 | } | |
660e09ad | 956 | |
a3653368 JF |
957 | if (set_color(&info->fg, argv[1]) == ERR || |
958 | set_color(&info->bg, argv[2]) == ERR) { | |
bca8fcaa JF |
959 | config_msg = "Unknown color"; |
960 | return ERR; | |
961 | } | |
660e09ad | 962 | |
9256ab05 | 963 | if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) { |
bca8fcaa JF |
964 | config_msg = "Unknown attribute"; |
965 | return ERR; | |
660e09ad JF |
966 | } |
967 | ||
bca8fcaa JF |
968 | return OK; |
969 | } | |
970 | ||
5bfd96c7 JF |
971 | /* Wants: name = value */ |
972 | static int | |
973 | option_set_command(int argc, char *argv[]) | |
974 | { | |
975 | if (argc != 3) { | |
976 | config_msg = "Wrong number of arguments given to set command"; | |
977 | return ERR; | |
978 | } | |
979 | ||
980 | if (strcmp(argv[1], "=")) { | |
981 | config_msg = "No value assigned"; | |
982 | return ERR; | |
983 | } | |
984 | ||
985 | if (!strcmp(argv[0], "show-rev-graph")) { | |
986 | opt_rev_graph = (!strcmp(argv[2], "1") || | |
987 | !strcmp(argv[2], "true") || | |
988 | !strcmp(argv[2], "yes")); | |
989 | return OK; | |
990 | } | |
991 | ||
992 | if (!strcmp(argv[0], "line-number-interval")) { | |
993 | opt_num_interval = atoi(argv[2]); | |
994 | return OK; | |
995 | } | |
996 | ||
997 | if (!strcmp(argv[0], "tab-size")) { | |
998 | opt_tab_size = atoi(argv[2]); | |
999 | return OK; | |
1000 | } | |
1001 | ||
cb7267ee | 1002 | if (!strcmp(argv[0], "commit-encoding")) { |
3cc9a4d4 JF |
1003 | char *arg = argv[2]; |
1004 | int delimiter = *arg; | |
1005 | int i; | |
1006 | ||
1007 | switch (delimiter) { | |
1008 | case '"': | |
1009 | case '\'': | |
1010 | for (arg++, i = 0; arg[i]; i++) | |
1011 | if (arg[i] == delimiter) { | |
1012 | arg[i] = 0; | |
1013 | break; | |
1014 | } | |
1015 | default: | |
1016 | string_copy(opt_encoding, arg); | |
1017 | return OK; | |
1018 | } | |
5bfd96c7 JF |
1019 | } |
1020 | ||
a3653368 | 1021 | config_msg = "Unknown variable name"; |
5bfd96c7 JF |
1022 | return ERR; |
1023 | } | |
1024 | ||
04e2b7b2 JF |
1025 | /* Wants: mode request key */ |
1026 | static int | |
1027 | option_bind_command(int argc, char *argv[]) | |
1028 | { | |
1029 | enum request request; | |
1030 | int keymap; | |
1031 | int key; | |
1032 | ||
1033 | if (argc != 3) { | |
1034 | config_msg = "Wrong number of arguments given to bind command"; | |
1035 | return ERR; | |
1036 | } | |
1037 | ||
1038 | if (set_keymap(&keymap, argv[0]) == ERR) { | |
1039 | config_msg = "Unknown key map"; | |
1040 | return ERR; | |
1041 | } | |
1042 | ||
1043 | key = get_key_value(argv[1]); | |
1044 | if (key == ERR) { | |
1045 | config_msg = "Unknown key"; | |
1046 | return ERR; | |
1047 | } | |
1048 | ||
1049 | request = get_request(argv[2]); | |
1050 | if (request == REQ_UNKNOWN) { | |
1051 | config_msg = "Unknown request name"; | |
1052 | return ERR; | |
1053 | } | |
1054 | ||
1055 | add_keybinding(keymap, request, key); | |
1056 | ||
1057 | return OK; | |
1058 | } | |
1059 | ||
bca8fcaa | 1060 | static int |
9256ab05 | 1061 | set_option(char *opt, char *value) |
bca8fcaa | 1062 | { |
9256ab05 JF |
1063 | char *argv[16]; |
1064 | int valuelen; | |
1065 | int argc = 0; | |
1066 | ||
1067 | /* Tokenize */ | |
1068 | while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) { | |
1069 | argv[argc++] = value; | |
1070 | ||
1071 | value += valuelen; | |
1072 | if (!*value) | |
1073 | break; | |
1074 | ||
1075 | *value++ = 0; | |
1076 | while (isspace(*value)) | |
1077 | value++; | |
1078 | } | |
1079 | ||
1080 | if (!strcmp(opt, "color")) | |
5bfd96c7 JF |
1081 | return option_color_command(argc, argv); |
1082 | ||
1083 | if (!strcmp(opt, "set")) | |
1084 | return option_set_command(argc, argv); | |
bca8fcaa | 1085 | |
04e2b7b2 JF |
1086 | if (!strcmp(opt, "bind")) |
1087 | return option_bind_command(argc, argv); | |
1088 | ||
a3653368 | 1089 | config_msg = "Unknown option command"; |
660e09ad JF |
1090 | return ERR; |
1091 | } | |
1092 | ||
1093 | static int | |
3c3801c2 JF |
1094 | read_option(char *opt, int optlen, char *value, int valuelen) |
1095 | { | |
a3653368 JF |
1096 | int status = OK; |
1097 | ||
3c3801c2 JF |
1098 | config_lineno++; |
1099 | config_msg = "Internal error"; | |
1100 | ||
a3653368 JF |
1101 | /* Check for comment markers, since read_properties() will |
1102 | * only ensure opt and value are split at first " \t". */ | |
74f83ee6 | 1103 | optlen = strcspn(opt, "#"); |
a3653368 | 1104 | if (optlen == 0) |
3c3801c2 JF |
1105 | return OK; |
1106 | ||
a3653368 JF |
1107 | if (opt[optlen] != 0) { |
1108 | config_msg = "No option value"; | |
1109 | status = ERR; | |
1110 | ||
1111 | } else { | |
1112 | /* Look for comment endings in the value. */ | |
74f83ee6 | 1113 | int len = strcspn(value, "#"); |
a3653368 JF |
1114 | |
1115 | if (len < valuelen) { | |
1116 | valuelen = len; | |
1117 | value[valuelen] = 0; | |
1118 | } | |
1119 | ||
1120 | status = set_option(opt, value); | |
3c3801c2 JF |
1121 | } |
1122 | ||
a3653368 JF |
1123 | if (status == ERR) { |
1124 | fprintf(stderr, "Error on line %d, near '%.*s': %s\n", | |
3c3801c2 JF |
1125 | config_lineno, optlen, opt, config_msg); |
1126 | config_errors = TRUE; | |
1127 | } | |
1128 | ||
1129 | /* Always keep going if errors are encountered. */ | |
1130 | return OK; | |
1131 | } | |
1132 | ||
1133 | static int | |
660e09ad JF |
1134 | load_options(void) |
1135 | { | |
1136 | char *home = getenv("HOME"); | |
17482b11 | 1137 | char buf[SIZEOF_STR]; |
660e09ad JF |
1138 | FILE *file; |
1139 | ||
3c3801c2 JF |
1140 | config_lineno = 0; |
1141 | config_errors = FALSE; | |
1142 | ||
cc2d1364 | 1143 | if (!home || !string_format(buf, "%s/.tigrc", home)) |
660e09ad JF |
1144 | return ERR; |
1145 | ||
1146 | /* It's ok that the file doesn't exist. */ | |
1147 | file = fopen(buf, "r"); | |
1148 | if (!file) | |
1149 | return OK; | |
1150 | ||
3c3801c2 JF |
1151 | if (read_properties(file, " \t", read_option) == ERR || |
1152 | config_errors == TRUE) | |
1153 | fprintf(stderr, "Errors while loading %s.\n", buf); | |
1154 | ||
1155 | return OK; | |
660e09ad JF |
1156 | } |
1157 | ||
1158 | ||
d839253b | 1159 | /* |
468876c9 | 1160 | * The viewer |
d839253b | 1161 | */ |
c2124ccd JF |
1162 | |
1163 | struct view; | |
fe7233c3 | 1164 | struct view_ops; |
c2124ccd JF |
1165 | |
1166 | /* The display array of active views and the index of the current view. */ | |
1167 | static struct view *display[2]; | |
1168 | static unsigned int current_view; | |
1169 | ||
33c4f9ea | 1170 | #define foreach_displayed_view(view, i) \ |
c2124ccd JF |
1171 | for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++) |
1172 | ||
9f41488f | 1173 | #define displayed_views() (display[1] != NULL ? 2 : 1) |
c2124ccd | 1174 | |
d839253b | 1175 | /* Current head and commit ID */ |
e733ee54 | 1176 | static char ref_blob[SIZEOF_REF] = ""; |
c2124ccd JF |
1177 | static char ref_commit[SIZEOF_REF] = "HEAD"; |
1178 | static char ref_head[SIZEOF_REF] = "HEAD"; | |
1179 | ||
b801d8b2 | 1180 | struct view { |
03a93dbb | 1181 | const char *name; /* View name */ |
4685845e TH |
1182 | const char *cmd_fmt; /* Default command line format */ |
1183 | const char *cmd_env; /* Command line set via environment */ | |
e733ee54 | 1184 | const char *id; /* Points to either of ref_{head,commit,blob} */ |
6b161b31 | 1185 | |
fe7233c3 | 1186 | struct view_ops *ops; /* View operations */ |
22f66b0a | 1187 | |
04e2b7b2 JF |
1188 | enum keymap keymap; /* What keymap does this view have */ |
1189 | ||
17482b11 | 1190 | char cmd[SIZEOF_STR]; /* Command buffer */ |
49f2b43f JF |
1191 | char ref[SIZEOF_REF]; /* Hovered commit reference */ |
1192 | char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */ | |
2e8488b4 | 1193 | |
8855ada4 JF |
1194 | int height, width; /* The width and height of the main window */ |
1195 | WINDOW *win; /* The main window */ | |
1196 | WINDOW *title; /* The title window living below the main window */ | |
b801d8b2 JF |
1197 | |
1198 | /* Navigation */ | |
1199 | unsigned long offset; /* Offset of the window top */ | |
1200 | unsigned long lineno; /* Current line number */ | |
1201 | ||
4af34daa JF |
1202 | /* Searching */ |
1203 | char grep[SIZEOF_STR]; /* Search string */ | |
b77b2cb8 | 1204 | regex_t *regex; /* Pre-compiled regex */ |
4af34daa | 1205 | |
f6da0b66 JF |
1206 | /* If non-NULL, points to the view that opened this view. If this view |
1207 | * is closed tig will switch back to the parent view. */ | |
1208 | struct view *parent; | |
1209 | ||
b801d8b2 JF |
1210 | /* Buffering */ |
1211 | unsigned long lines; /* Total number of lines */ | |
fe7233c3 | 1212 | struct line *line; /* Line index */ |
e2c01617 | 1213 | unsigned long line_size;/* Total number of allocated lines */ |
8855ada4 | 1214 | unsigned int digits; /* Number of digits in the lines member. */ |
b801d8b2 JF |
1215 | |
1216 | /* Loading */ | |
1217 | FILE *pipe; | |
2e8488b4 | 1218 | time_t start_time; |
b801d8b2 JF |
1219 | }; |
1220 | ||
fe7233c3 JF |
1221 | struct view_ops { |
1222 | /* What type of content being displayed. Used in the title bar. */ | |
1223 | const char *type; | |
1224 | /* Draw one line; @lineno must be < view->height. */ | |
5dcf8064 | 1225 | bool (*draw)(struct view *view, struct line *line, unsigned int lineno, bool selected); |
fe7233c3 | 1226 | /* Read one line; updates view->line. */ |
701e4f5d | 1227 | bool (*read)(struct view *view, char *data); |
fe7233c3 JF |
1228 | /* Depending on view, change display based on current line. */ |
1229 | bool (*enter)(struct view *view, struct line *line); | |
4af34daa JF |
1230 | /* Search for regex in a line. */ |
1231 | bool (*grep)(struct view *view, struct line *line); | |
d720de4b JF |
1232 | /* Select line */ |
1233 | void (*select)(struct view *view, struct line *line); | |
fe7233c3 JF |
1234 | }; |
1235 | ||
6b161b31 JF |
1236 | static struct view_ops pager_ops; |
1237 | static struct view_ops main_ops; | |
e733ee54 JF |
1238 | static struct view_ops tree_ops; |
1239 | static struct view_ops blob_ops; | |
a28bcc22 | 1240 | |
04e2b7b2 JF |
1241 | #define VIEW_STR(name, cmd, env, ref, ops, map) \ |
1242 | { name, cmd, #env, ref, ops, map} | |
1ba2ae4b | 1243 | |
95d7ddcd | 1244 | #define VIEW_(id, name, ops, ref) \ |
04e2b7b2 | 1245 | VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id) |
1ba2ae4b | 1246 | |
c2124ccd | 1247 | |
b801d8b2 | 1248 | static struct view views[] = { |
95d7ddcd JF |
1249 | VIEW_(MAIN, "main", &main_ops, ref_head), |
1250 | VIEW_(DIFF, "diff", &pager_ops, ref_commit), | |
1251 | VIEW_(LOG, "log", &pager_ops, ref_head), | |
e733ee54 JF |
1252 | VIEW_(TREE, "tree", &tree_ops, ref_commit), |
1253 | VIEW_(BLOB, "blob", &blob_ops, ref_blob), | |
95d7ddcd JF |
1254 | VIEW_(HELP, "help", &pager_ops, "static"), |
1255 | VIEW_(PAGER, "pager", &pager_ops, "static"), | |
b801d8b2 JF |
1256 | }; |
1257 | ||
a28bcc22 JF |
1258 | #define VIEW(req) (&views[(req) - REQ_OFFSET - 1]) |
1259 | ||
699ae55b JF |
1260 | #define foreach_view(view, i) \ |
1261 | for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++) | |
1262 | ||
1263 | #define view_is_displayed(view) \ | |
1264 | (view == display[0] || view == display[1]) | |
4c6fabc2 | 1265 | |
fe7233c3 JF |
1266 | static bool |
1267 | draw_view_line(struct view *view, unsigned int lineno) | |
1268 | { | |
d720de4b | 1269 | struct line *line; |
5dcf8064 | 1270 | bool selected = (view->offset + lineno == view->lineno); |
d720de4b | 1271 | |
699ae55b JF |
1272 | assert(view_is_displayed(view)); |
1273 | ||
fe7233c3 JF |
1274 | if (view->offset + lineno >= view->lines) |
1275 | return FALSE; | |
1276 | ||
d720de4b JF |
1277 | line = &view->line[view->offset + lineno]; |
1278 | ||
3c571d67 JF |
1279 | if (selected) { |
1280 | line->selected = TRUE; | |
d720de4b | 1281 | view->ops->select(view, line); |
3c571d67 JF |
1282 | } else if (line->selected) { |
1283 | line->selected = FALSE; | |
1284 | wmove(view->win, lineno, 0); | |
1285 | wclrtoeol(view->win); | |
1286 | } | |
d720de4b | 1287 | |
5dcf8064 | 1288 | return view->ops->draw(view, line, lineno, selected); |
fe7233c3 JF |
1289 | } |
1290 | ||
b801d8b2 | 1291 | static void |
82e78006 | 1292 | redraw_view_from(struct view *view, int lineno) |
b801d8b2 | 1293 | { |
82e78006 | 1294 | assert(0 <= lineno && lineno < view->height); |
b801d8b2 | 1295 | |
82e78006 | 1296 | for (; lineno < view->height; lineno++) { |
fe7233c3 | 1297 | if (!draw_view_line(view, lineno)) |
fd85fef1 | 1298 | break; |
b801d8b2 JF |
1299 | } |
1300 | ||
1301 | redrawwin(view->win); | |
1302 | wrefresh(view->win); | |
1303 | } | |
1304 | ||
b76c2afc | 1305 | static void |
82e78006 JF |
1306 | redraw_view(struct view *view) |
1307 | { | |
1308 | wclear(view->win); | |
1309 | redraw_view_from(view, 0); | |
1310 | } | |
1311 | ||
c2124ccd | 1312 | |
6b161b31 | 1313 | static void |
81030ec8 JF |
1314 | update_view_title(struct view *view) |
1315 | { | |
699ae55b JF |
1316 | assert(view_is_displayed(view)); |
1317 | ||
81030ec8 JF |
1318 | if (view == display[current_view]) |
1319 | wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS)); | |
1320 | else | |
1321 | wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR)); | |
1322 | ||
1323 | werase(view->title); | |
1324 | wmove(view->title, 0, 0); | |
1325 | ||
81030ec8 JF |
1326 | if (*view->ref) |
1327 | wprintw(view->title, "[%s] %s", view->name, view->ref); | |
1328 | else | |
1329 | wprintw(view->title, "[%s]", view->name); | |
1330 | ||
c19f8017 | 1331 | if (view->lines || view->pipe) { |
6d9c07af | 1332 | unsigned int view_lines = view->offset + view->height; |
c19f8017 | 1333 | unsigned int lines = view->lines |
6d9c07af | 1334 | ? MIN(view_lines, view->lines) * 100 / view->lines |
c19f8017 JF |
1335 | : 0; |
1336 | ||
81030ec8 JF |
1337 | wprintw(view->title, " - %s %d of %d (%d%%)", |
1338 | view->ops->type, | |
1339 | view->lineno + 1, | |
1340 | view->lines, | |
c19f8017 | 1341 | lines); |
81030ec8 JF |
1342 | } |
1343 | ||
f97f4012 JF |
1344 | if (view->pipe) { |
1345 | time_t secs = time(NULL) - view->start_time; | |
1346 | ||
1347 | /* Three git seconds are a long time ... */ | |
1348 | if (secs > 2) | |
1349 | wprintw(view->title, " %lds", secs); | |
1350 | } | |
1351 | ||
976447f8 | 1352 | wmove(view->title, 0, view->width - 1); |
81030ec8 JF |
1353 | wrefresh(view->title); |
1354 | } | |
1355 | ||
1356 | static void | |
6b161b31 | 1357 | resize_display(void) |
b76c2afc | 1358 | { |
03a93dbb | 1359 | int offset, i; |
6b161b31 JF |
1360 | struct view *base = display[0]; |
1361 | struct view *view = display[1] ? display[1] : display[0]; | |
b76c2afc | 1362 | |
6b161b31 | 1363 | /* Setup window dimensions */ |
b76c2afc | 1364 | |
03a93dbb | 1365 | getmaxyx(stdscr, base->height, base->width); |
b76c2afc | 1366 | |
6b161b31 | 1367 | /* Make room for the status window. */ |
03a93dbb | 1368 | base->height -= 1; |
6b161b31 JF |
1369 | |
1370 | if (view != base) { | |
03a93dbb JF |
1371 | /* Horizontal split. */ |
1372 | view->width = base->width; | |
6b161b31 JF |
1373 | view->height = SCALE_SPLIT_VIEW(base->height); |
1374 | base->height -= view->height; | |
1375 | ||
1376 | /* Make room for the title bar. */ | |
1377 | view->height -= 1; | |
1378 | } | |
1379 | ||
1380 | /* Make room for the title bar. */ | |
1381 | base->height -= 1; | |
1382 | ||
1383 | offset = 0; | |
1384 | ||
33c4f9ea | 1385 | foreach_displayed_view (view, i) { |
b76c2afc | 1386 | if (!view->win) { |
c19f8017 | 1387 | view->win = newwin(view->height, 0, offset, 0); |
6b161b31 JF |
1388 | if (!view->win) |
1389 | die("Failed to create %s view", view->name); | |
1390 | ||
1391 | scrollok(view->win, TRUE); | |
1392 | ||
1393 | view->title = newwin(1, 0, offset + view->height, 0); | |
1394 | if (!view->title) | |
1395 | die("Failed to create title window"); | |
1396 | ||
1397 | } else { | |
c19f8017 | 1398 | wresize(view->win, view->height, view->width); |
6b161b31 JF |
1399 | mvwin(view->win, offset, 0); |
1400 | mvwin(view->title, offset + view->height, 0); | |
a28bcc22 | 1401 | } |
a28bcc22 | 1402 | |
6b161b31 | 1403 | offset += view->height + 1; |
b76c2afc | 1404 | } |
6b161b31 | 1405 | } |
b76c2afc | 1406 | |
6b161b31 | 1407 | static void |
20bb5e18 JF |
1408 | redraw_display(void) |
1409 | { | |
1410 | struct view *view; | |
1411 | int i; | |
1412 | ||
33c4f9ea | 1413 | foreach_displayed_view (view, i) { |
20bb5e18 JF |
1414 | redraw_view(view); |
1415 | update_view_title(view); | |
1416 | } | |
1417 | } | |
1418 | ||
85af6284 JF |
1419 | static void |
1420 | update_display_cursor(void) | |
1421 | { | |
1422 | struct view *view = display[current_view]; | |
1423 | ||
1424 | /* Move the cursor to the right-most column of the cursor line. | |
1425 | * | |
1426 | * XXX: This could turn out to be a bit expensive, but it ensures that | |
1427 | * the cursor does not jump around. */ | |
1428 | if (view->lines) { | |
1429 | wmove(view->win, view->lineno - view->offset, view->width - 1); | |
1430 | wrefresh(view->win); | |
1431 | } | |
1432 | } | |
20bb5e18 | 1433 | |
2e8488b4 JF |
1434 | /* |
1435 | * Navigation | |
1436 | */ | |
1437 | ||
4a2909a7 | 1438 | /* Scrolling backend */ |
b801d8b2 | 1439 | static void |
8c317212 | 1440 | do_scroll_view(struct view *view, int lines) |
b801d8b2 | 1441 | { |
a0087dd5 JF |
1442 | bool redraw_current_line = FALSE; |
1443 | ||
fd85fef1 JF |
1444 | /* The rendering expects the new offset. */ |
1445 | view->offset += lines; | |
1446 | ||
1447 | assert(0 <= view->offset && view->offset < view->lines); | |
1448 | assert(lines); | |
b801d8b2 | 1449 | |
a0087dd5 JF |
1450 | /* Move current line into the view. */ |
1451 | if (view->lineno < view->offset) { | |
1452 | view->lineno = view->offset; | |
1453 | redraw_current_line = TRUE; | |
1454 | } else if (view->lineno >= view->offset + view->height) { | |
1455 | view->lineno = view->offset + view->height - 1; | |
1456 | redraw_current_line = TRUE; | |
1457 | } | |
1458 | ||
1459 | assert(view->offset <= view->lineno && view->lineno < view->lines); | |
1460 | ||
82e78006 | 1461 | /* Redraw the whole screen if scrolling is pointless. */ |
4c6fabc2 | 1462 | if (view->height < ABS(lines)) { |
b76c2afc JF |
1463 | redraw_view(view); |
1464 | ||
1465 | } else { | |
22f66b0a | 1466 | int line = lines > 0 ? view->height - lines : 0; |
82e78006 | 1467 | int end = line + ABS(lines); |
fd85fef1 JF |
1468 | |
1469 | wscrl(view->win, lines); | |
1470 | ||
22f66b0a | 1471 | for (; line < end; line++) { |
fe7233c3 | 1472 | if (!draw_view_line(view, line)) |
fd85fef1 JF |
1473 | break; |
1474 | } | |
fd85fef1 | 1475 | |
a0087dd5 JF |
1476 | if (redraw_current_line) |
1477 | draw_view_line(view, view->lineno - view->offset); | |
fd85fef1 JF |
1478 | } |
1479 | ||
fd85fef1 JF |
1480 | redrawwin(view->win); |
1481 | wrefresh(view->win); | |
9d3f5834 | 1482 | report(""); |
fd85fef1 | 1483 | } |
78c70acd | 1484 | |
4a2909a7 | 1485 | /* Scroll frontend */ |
fd85fef1 | 1486 | static void |
6b161b31 | 1487 | scroll_view(struct view *view, enum request request) |
fd85fef1 JF |
1488 | { |
1489 | int lines = 1; | |
b801d8b2 | 1490 | |
8c317212 JF |
1491 | assert(view_is_displayed(view)); |
1492 | ||
b801d8b2 | 1493 | switch (request) { |
4a2909a7 | 1494 | case REQ_SCROLL_PAGE_DOWN: |
fd85fef1 | 1495 | lines = view->height; |
4a2909a7 | 1496 | case REQ_SCROLL_LINE_DOWN: |
b801d8b2 | 1497 | if (view->offset + lines > view->lines) |
bde3653a | 1498 | lines = view->lines - view->offset; |
b801d8b2 | 1499 | |
fd85fef1 | 1500 | if (lines == 0 || view->offset + view->height >= view->lines) { |
eb98559e | 1501 | report("Cannot scroll beyond the last line"); |
b801d8b2 JF |
1502 | return; |
1503 | } | |
1504 | break; | |
1505 | ||
4a2909a7 | 1506 | case REQ_SCROLL_PAGE_UP: |
fd85fef1 | 1507 | lines = view->height; |
4a2909a7 | 1508 | case REQ_SCROLL_LINE_UP: |
b801d8b2 JF |
1509 | if (lines > view->offset) |
1510 | lines = view->offset; | |
1511 | ||
1512 | if (lines == 0) { | |
eb98559e | 1513 | report("Cannot scroll beyond the first line"); |
b801d8b2 JF |
1514 | return; |
1515 | } | |
1516 | ||
fd85fef1 | 1517 | lines = -lines; |
b801d8b2 | 1518 | break; |
03a93dbb | 1519 | |
6b161b31 JF |
1520 | default: |
1521 | die("request %d not handled in switch", request); | |
b801d8b2 JF |
1522 | } |
1523 | ||
8c317212 | 1524 | do_scroll_view(view, lines); |
fd85fef1 | 1525 | } |
b801d8b2 | 1526 | |
4a2909a7 | 1527 | /* Cursor moving */ |
fd85fef1 | 1528 | static void |
8522ecc7 | 1529 | move_view(struct view *view, enum request request) |
fd85fef1 | 1530 | { |
dfaa6c81 | 1531 | int scroll_steps = 0; |
fd85fef1 | 1532 | int steps; |
b801d8b2 | 1533 | |
fd85fef1 | 1534 | switch (request) { |
4a2909a7 | 1535 | case REQ_MOVE_FIRST_LINE: |
78c70acd JF |
1536 | steps = -view->lineno; |
1537 | break; | |
1538 | ||
4a2909a7 | 1539 | case REQ_MOVE_LAST_LINE: |
78c70acd JF |
1540 | steps = view->lines - view->lineno - 1; |
1541 | break; | |
1542 | ||
4a2909a7 | 1543 | case REQ_MOVE_PAGE_UP: |
78c70acd JF |
1544 | steps = view->height > view->lineno |
1545 | ? -view->lineno : -view->height; | |
1546 | break; | |
1547 | ||
4a2909a7 | 1548 | case REQ_MOVE_PAGE_DOWN: |
78c70acd JF |
1549 | steps = view->lineno + view->height >= view->lines |
1550 | ? view->lines - view->lineno - 1 : view->height; | |
1551 | break; | |
1552 | ||
4a2909a7 | 1553 | case REQ_MOVE_UP: |
fd85fef1 JF |
1554 | steps = -1; |
1555 | break; | |
b801d8b2 | 1556 | |
4a2909a7 | 1557 | case REQ_MOVE_DOWN: |
fd85fef1 JF |
1558 | steps = 1; |
1559 | break; | |
6b161b31 JF |
1560 | |
1561 | default: | |
1562 | die("request %d not handled in switch", request); | |
78c70acd | 1563 | } |
b801d8b2 | 1564 | |
4c6fabc2 | 1565 | if (steps <= 0 && view->lineno == 0) { |
eb98559e | 1566 | report("Cannot move beyond the first line"); |
78c70acd | 1567 | return; |
b801d8b2 | 1568 | |
6908bdbd | 1569 | } else if (steps >= 0 && view->lineno + 1 >= view->lines) { |
eb98559e | 1570 | report("Cannot move beyond the last line"); |
78c70acd | 1571 | return; |
fd85fef1 JF |
1572 | } |
1573 | ||
4c6fabc2 | 1574 | /* Move the current line */ |
fd85fef1 | 1575 | view->lineno += steps; |
4c6fabc2 JF |
1576 | assert(0 <= view->lineno && view->lineno < view->lines); |
1577 | ||
4c6fabc2 | 1578 | /* Check whether the view needs to be scrolled */ |
fd85fef1 JF |
1579 | if (view->lineno < view->offset || |
1580 | view->lineno >= view->offset + view->height) { | |
dfaa6c81 | 1581 | scroll_steps = steps; |
fd85fef1 | 1582 | if (steps < 0 && -steps > view->offset) { |
dfaa6c81 | 1583 | scroll_steps = -view->offset; |
b76c2afc JF |
1584 | |
1585 | } else if (steps > 0) { | |
1586 | if (view->lineno == view->lines - 1 && | |
1587 | view->lines > view->height) { | |
dfaa6c81 JF |
1588 | scroll_steps = view->lines - view->offset - 1; |
1589 | if (scroll_steps >= view->height) | |
1590 | scroll_steps -= view->height - 1; | |
b76c2afc | 1591 | } |
b801d8b2 | 1592 | } |
8522ecc7 JF |
1593 | } |
1594 | ||
1595 | if (!view_is_displayed(view)) { | |
1596 | view->offset += steps; | |
1597 | view->ops->select(view, &view->line[view->lineno]); | |
1598 | return; | |
1599 | } | |
1600 | ||
1601 | /* Repaint the old "current" line if we be scrolling */ | |
1602 | if (ABS(steps) < view->height) | |
1603 | draw_view_line(view, view->lineno - steps - view->offset); | |
1604 | ||
dfaa6c81 JF |
1605 | if (scroll_steps) { |
1606 | do_scroll_view(view, scroll_steps); | |
fd85fef1 | 1607 | return; |
b801d8b2 JF |
1608 | } |
1609 | ||
4c6fabc2 | 1610 | /* Draw the current line */ |
fe7233c3 | 1611 | draw_view_line(view, view->lineno - view->offset); |
fd85fef1 | 1612 | |
b801d8b2 JF |
1613 | redrawwin(view->win); |
1614 | wrefresh(view->win); | |
9d3f5834 | 1615 | report(""); |
b801d8b2 JF |
1616 | } |
1617 | ||
b801d8b2 | 1618 | |
2e8488b4 | 1619 | /* |
4af34daa JF |
1620 | * Searching |
1621 | */ | |
1622 | ||
c02d8fce | 1623 | static void search_view(struct view *view, enum request request); |
4af34daa JF |
1624 | |
1625 | static bool | |
1626 | find_next_line(struct view *view, unsigned long lineno, struct line *line) | |
1627 | { | |
699ae55b JF |
1628 | assert(view_is_displayed(view)); |
1629 | ||
4af34daa JF |
1630 | if (!view->ops->grep(view, line)) |
1631 | return FALSE; | |
1632 | ||
1633 | if (lineno - view->offset >= view->height) { | |
1634 | view->offset = lineno; | |
1635 | view->lineno = lineno; | |
1636 | redraw_view(view); | |
1637 | ||
1638 | } else { | |
1639 | unsigned long old_lineno = view->lineno - view->offset; | |
1640 | ||
1641 | view->lineno = lineno; | |
4af34daa JF |
1642 | draw_view_line(view, old_lineno); |
1643 | ||
1644 | draw_view_line(view, view->lineno - view->offset); | |
1645 | redrawwin(view->win); | |
1646 | wrefresh(view->win); | |
1647 | } | |
1648 | ||
1649 | report("Line %ld matches '%s'", lineno + 1, view->grep); | |
1650 | return TRUE; | |
1651 | } | |
1652 | ||
1653 | static void | |
1654 | find_next(struct view *view, enum request request) | |
1655 | { | |
1656 | unsigned long lineno = view->lineno; | |
1657 | int direction; | |
1658 | ||
1659 | if (!*view->grep) { | |
1660 | if (!*opt_search) | |
1661 | report("No previous search"); | |
1662 | else | |
c02d8fce | 1663 | search_view(view, request); |
4af34daa JF |
1664 | return; |
1665 | } | |
1666 | ||
1667 | switch (request) { | |
1668 | case REQ_SEARCH: | |
1669 | case REQ_FIND_NEXT: | |
1670 | direction = 1; | |
1671 | break; | |
1672 | ||
1673 | case REQ_SEARCH_BACK: | |
1674 | case REQ_FIND_PREV: | |
1675 | direction = -1; | |
1676 | break; | |
1677 | ||
1678 | default: | |
1679 | return; | |
1680 | } | |
1681 | ||
1682 | if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV) | |
1683 | lineno += direction; | |
1684 | ||
1685 | /* Note, lineno is unsigned long so will wrap around in which case it | |
1686 | * will become bigger than view->lines. */ | |
1687 | for (; lineno < view->lines; lineno += direction) { | |
1688 | struct line *line = &view->line[lineno]; | |
1689 | ||
1690 | if (find_next_line(view, lineno, line)) | |
1691 | return; | |
1692 | } | |
1693 | ||
1694 | report("No match found for '%s'", view->grep); | |
1695 | } | |
1696 | ||
1697 | static void | |
c02d8fce | 1698 | search_view(struct view *view, enum request request) |
4af34daa JF |
1699 | { |
1700 | int regex_err; | |
1701 | ||
b77b2cb8 JF |
1702 | if (view->regex) { |
1703 | regfree(view->regex); | |
4af34daa | 1704 | *view->grep = 0; |
b77b2cb8 JF |
1705 | } else { |
1706 | view->regex = calloc(1, sizeof(*view->regex)); | |
1707 | if (!view->regex) | |
1708 | return; | |
4af34daa JF |
1709 | } |
1710 | ||
c02d8fce | 1711 | regex_err = regcomp(view->regex, opt_search, REG_EXTENDED); |
4af34daa JF |
1712 | if (regex_err != 0) { |
1713 | char buf[SIZEOF_STR] = "unknown error"; | |
1714 | ||
b77b2cb8 | 1715 | regerror(regex_err, view->regex, buf, sizeof(buf)); |
e9cacd58 | 1716 | report("Search failed: %s", buf); |
4af34daa JF |
1717 | return; |
1718 | } | |
1719 | ||
c02d8fce | 1720 | string_copy(view->grep, opt_search); |
4af34daa JF |
1721 | |
1722 | find_next(view, request); | |
1723 | } | |
1724 | ||
1725 | /* | |
2e8488b4 JF |
1726 | * Incremental updating |
1727 | */ | |
b801d8b2 | 1728 | |
199d1288 JF |
1729 | static void |
1730 | end_update(struct view *view) | |
1731 | { | |
1732 | if (!view->pipe) | |
1733 | return; | |
1734 | set_nonblocking_input(FALSE); | |
1735 | if (view->pipe == stdin) | |
1736 | fclose(view->pipe); | |
1737 | else | |
1738 | pclose(view->pipe); | |
1739 | view->pipe = NULL; | |
1740 | } | |
1741 | ||
03a93dbb | 1742 | static bool |
b801d8b2 JF |
1743 | begin_update(struct view *view) |
1744 | { | |
4685845e | 1745 | const char *id = view->id; |
fd85fef1 | 1746 | |
199d1288 JF |
1747 | if (view->pipe) |
1748 | end_update(view); | |
1749 | ||
03a93dbb JF |
1750 | if (opt_cmd[0]) { |
1751 | string_copy(view->cmd, opt_cmd); | |
1752 | opt_cmd[0] = 0; | |
8855ada4 JF |
1753 | /* When running random commands, the view ref could have become |
1754 | * invalid so clear it. */ | |
1755 | view->ref[0] = 0; | |
e733ee54 JF |
1756 | |
1757 | } else if (view == VIEW(REQ_VIEW_TREE)) { | |
1758 | const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt; | |
1759 | ||
1760 | if (strcmp(view->vid, view->id)) | |
1761 | opt_path[0] = 0; | |
1762 | ||
4ea4ce91 | 1763 | if (!string_format(view->cmd, format, id, opt_path)) |
e733ee54 JF |
1764 | return FALSE; |
1765 | ||
03a93dbb | 1766 | } else { |
4685845e | 1767 | const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt; |
1ba2ae4b | 1768 | |
cc2d1364 | 1769 | if (!string_format(view->cmd, format, id, id, id, id, id)) |
03a93dbb JF |
1770 | return FALSE; |
1771 | } | |
b801d8b2 | 1772 | |
6908bdbd JF |
1773 | /* Special case for the pager view. */ |
1774 | if (opt_pipe) { | |
1775 | view->pipe = opt_pipe; | |
1776 | opt_pipe = NULL; | |
1777 | } else { | |
1778 | view->pipe = popen(view->cmd, "r"); | |
1779 | } | |
1780 | ||
2e8488b4 JF |
1781 | if (!view->pipe) |
1782 | return FALSE; | |
b801d8b2 | 1783 | |
6b161b31 | 1784 | set_nonblocking_input(TRUE); |
b801d8b2 JF |
1785 | |
1786 | view->offset = 0; | |
1787 | view->lines = 0; | |
1788 | view->lineno = 0; | |
49f2b43f | 1789 | string_copy(view->vid, id); |
b801d8b2 | 1790 | |
2e8488b4 JF |
1791 | if (view->line) { |
1792 | int i; | |
1793 | ||
1794 | for (i = 0; i < view->lines; i++) | |
fe7233c3 JF |
1795 | if (view->line[i].data) |
1796 | free(view->line[i].data); | |
2e8488b4 JF |
1797 | |
1798 | free(view->line); | |
1799 | view->line = NULL; | |
1800 | } | |
1801 | ||
1802 | view->start_time = time(NULL); | |
1803 | ||
b801d8b2 JF |
1804 | return TRUE; |
1805 | } | |
1806 | ||
e2c01617 JF |
1807 | static struct line * |
1808 | realloc_lines(struct view *view, size_t line_size) | |
1809 | { | |
1810 | struct line *tmp = realloc(view->line, sizeof(*view->line) * line_size); | |
1811 | ||
1812 | if (!tmp) | |
1813 | return NULL; | |
1814 | ||
1815 | view->line = tmp; | |
1816 | view->line_size = line_size; | |
1817 | return view->line; | |
1818 | } | |
1819 | ||
03a93dbb | 1820 | static bool |
b801d8b2 JF |
1821 | update_view(struct view *view) |
1822 | { | |
6b68fd24 JF |
1823 | char in_buffer[BUFSIZ]; |
1824 | char out_buffer[BUFSIZ * 2]; | |
b801d8b2 | 1825 | char *line; |
82e78006 JF |
1826 | /* The number of lines to read. If too low it will cause too much |
1827 | * redrawing (and possible flickering), if too high responsiveness | |
1828 | * will suffer. */ | |
8855ada4 | 1829 | unsigned long lines = view->height; |
82e78006 | 1830 | int redraw_from = -1; |
b801d8b2 JF |
1831 | |
1832 | if (!view->pipe) | |
1833 | return TRUE; | |
1834 | ||
82e78006 JF |
1835 | /* Only redraw if lines are visible. */ |
1836 | if (view->offset + view->height >= view->lines) | |
1837 | redraw_from = view->lines - view->offset; | |
b801d8b2 | 1838 | |
699ae55b | 1839 | /* FIXME: This is probably not perfect for backgrounded views. */ |
e2c01617 | 1840 | if (!realloc_lines(view, view->lines + lines)) |
b801d8b2 JF |
1841 | goto alloc_error; |
1842 | ||
6b68fd24 JF |
1843 | while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) { |
1844 | size_t linelen = strlen(line); | |
b801d8b2 | 1845 | |
b801d8b2 JF |
1846 | if (linelen) |
1847 | line[linelen - 1] = 0; | |
1848 | ||
6b68fd24 JF |
1849 | if (opt_iconv != ICONV_NONE) { |
1850 | char *inbuf = line; | |
1851 | size_t inlen = linelen; | |
1852 | ||
1853 | char *outbuf = out_buffer; | |
1854 | size_t outlen = sizeof(out_buffer); | |
1855 | ||
1856 | size_t ret; | |
1857 | ||
1858 | ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen); | |
1859 | if (ret != (size_t) -1) { | |
1860 | line = out_buffer; | |
1861 | linelen = strlen(out_buffer); | |
1862 | } | |
1863 | } | |
1864 | ||
701e4f5d | 1865 | if (!view->ops->read(view, line)) |
b801d8b2 | 1866 | goto alloc_error; |
fd85fef1 JF |
1867 | |
1868 | if (lines-- == 1) | |
1869 | break; | |
b801d8b2 JF |
1870 | } |
1871 | ||
8855ada4 JF |
1872 | { |
1873 | int digits; | |
1874 | ||
1875 | lines = view->lines; | |
1876 | for (digits = 0; lines; digits++) | |
1877 | lines /= 10; | |
1878 | ||
1879 | /* Keep the displayed view in sync with line number scaling. */ | |
1880 | if (digits != view->digits) { | |
1881 | view->digits = digits; | |
1882 | redraw_from = 0; | |
1883 | } | |
1884 | } | |
1885 | ||
699ae55b JF |
1886 | if (!view_is_displayed(view)) |
1887 | goto check_pipe; | |
1888 | ||
e733ee54 JF |
1889 | if (view == VIEW(REQ_VIEW_TREE)) { |
1890 | /* Clear the view and redraw everything since the tree sorting | |
1891 | * might have rearranged things. */ | |
1892 | redraw_view(view); | |
1893 | ||
1894 | } else if (redraw_from >= 0) { | |
82e78006 | 1895 | /* If this is an incremental update, redraw the previous line |
a28bcc22 JF |
1896 | * since for commits some members could have changed when |
1897 | * loading the main view. */ | |
82e78006 JF |
1898 | if (redraw_from > 0) |
1899 | redraw_from--; | |
1900 | ||
1901 | /* Incrementally draw avoids flickering. */ | |
1902 | redraw_view_from(view, redraw_from); | |
4c6fabc2 | 1903 | } |
b801d8b2 | 1904 | |
eb98559e JF |
1905 | /* Update the title _after_ the redraw so that if the redraw picks up a |
1906 | * commit reference in view->ref it'll be available here. */ | |
1907 | update_view_title(view); | |
1908 | ||
699ae55b | 1909 | check_pipe: |
b801d8b2 | 1910 | if (ferror(view->pipe)) { |
03a93dbb | 1911 | report("Failed to read: %s", strerror(errno)); |
b801d8b2 JF |
1912 | goto end; |
1913 | ||
1914 | } else if (feof(view->pipe)) { | |
f97f4012 | 1915 | report(""); |
b801d8b2 JF |
1916 | goto end; |
1917 | } | |
1918 | ||
1919 | return TRUE; | |
1920 | ||
1921 | alloc_error: | |
2e8488b4 | 1922 | report("Allocation failure"); |
b801d8b2 JF |
1923 | |
1924 | end: | |
1925 | end_update(view); | |
1926 | return FALSE; | |
1927 | } | |
1928 | ||
79d445ca | 1929 | |
e10154d5 JF |
1930 | /* |
1931 | * View opening | |
1932 | */ | |
1933 | ||
79d445ca JF |
1934 | static void open_help_view(struct view *view) |
1935 | { | |
1936 | char buf[BUFSIZ]; | |
1937 | int lines = ARRAY_SIZE(req_info) + 2; | |
1938 | int i; | |
1939 | ||
1940 | if (view->lines > 0) | |
1941 | return; | |
1942 | ||
1943 | for (i = 0; i < ARRAY_SIZE(req_info); i++) | |
1944 | if (!req_info[i].request) | |
1945 | lines++; | |
1946 | ||
1947 | view->line = calloc(lines, sizeof(*view->line)); | |
1948 | if (!view->line) { | |
1949 | report("Allocation failure"); | |
1950 | return; | |
1951 | } | |
1952 | ||
1953 | view->ops->read(view, "Quick reference for tig keybindings:"); | |
1954 | ||
1955 | for (i = 0; i < ARRAY_SIZE(req_info); i++) { | |
1956 | char *key; | |
1957 | ||
1958 | if (!req_info[i].request) { | |
1959 | view->ops->read(view, ""); | |
1960 | view->ops->read(view, req_info[i].help); | |
1961 | continue; | |
1962 | } | |
1963 | ||
1964 | key = get_key(req_info[i].request); | |
1965 | if (!string_format(buf, "%-25s %s", key, req_info[i].help)) | |
1966 | continue; | |
1967 | ||
1968 | view->ops->read(view, buf); | |
1969 | } | |
1970 | } | |
1971 | ||
49f2b43f JF |
1972 | enum open_flags { |
1973 | OPEN_DEFAULT = 0, /* Use default view switching. */ | |
1974 | OPEN_SPLIT = 1, /* Split current view. */ | |
1975 | OPEN_BACKGROUNDED = 2, /* Backgrounded. */ | |
1976 | OPEN_RELOAD = 4, /* Reload view even if it is the current. */ | |
1977 | }; | |
1978 | ||
6b161b31 | 1979 | static void |
49f2b43f | 1980 | open_view(struct view *prev, enum request request, enum open_flags flags) |
b801d8b2 | 1981 | { |
49f2b43f JF |
1982 | bool backgrounded = !!(flags & OPEN_BACKGROUNDED); |
1983 | bool split = !!(flags & OPEN_SPLIT); | |
1984 | bool reload = !!(flags & OPEN_RELOAD); | |
a28bcc22 | 1985 | struct view *view = VIEW(request); |
9f41488f | 1986 | int nviews = displayed_views(); |
6e950a52 | 1987 | struct view *base_view = display[0]; |
b801d8b2 | 1988 | |
49f2b43f | 1989 | if (view == prev && nviews == 1 && !reload) { |
6b161b31 JF |
1990 | report("Already in %s view", view->name); |
1991 | return; | |
1992 | } | |
b801d8b2 | 1993 | |
2509b112 | 1994 | if (view == VIEW(REQ_VIEW_HELP)) { |
79d445ca | 1995 | open_help_view(view); |
2509b112 JF |
1996 | |
1997 | } else if ((reload || strcmp(view->vid, view->id)) && | |
1998 | !begin_update(view)) { | |
6b161b31 JF |
1999 | report("Failed to load %s view", view->name); |
2000 | return; | |
2001 | } | |
a28bcc22 | 2002 | |
6b161b31 | 2003 | if (split) { |
8d741c06 | 2004 | display[1] = view; |
6b161b31 | 2005 | if (!backgrounded) |
8d741c06 | 2006 | current_view = 1; |
6b161b31 JF |
2007 | } else { |
2008 | /* Maximize the current view. */ | |
2009 | memset(display, 0, sizeof(display)); | |
2010 | current_view = 0; | |
2011 | display[current_view] = view; | |
a28bcc22 | 2012 | } |
b801d8b2 | 2013 | |
6e950a52 JF |
2014 | /* Resize the view when switching between split- and full-screen, |
2015 | * or when switching between two different full-screen views. */ | |
2016 | if (nviews != displayed_views() || | |
2017 | (nviews == 1 && base_view != display[0])) | |
a006db63 | 2018 | resize_display(); |
b801d8b2 | 2019 | |
a8891802 | 2020 | if (split && prev->lineno - prev->offset >= prev->height) { |
03a93dbb | 2021 | /* Take the title line into account. */ |
eb98559e | 2022 | int lines = prev->lineno - prev->offset - prev->height + 1; |
03a93dbb JF |
2023 | |
2024 | /* Scroll the view that was split if the current line is | |
2025 | * outside the new limited view. */ | |
8c317212 | 2026 | do_scroll_view(prev, lines); |
03a93dbb JF |
2027 | } |
2028 | ||
6b161b31 | 2029 | if (prev && view != prev) { |
9b995f0c | 2030 | if (split && !backgrounded) { |
f0b3ab80 JF |
2031 | /* "Blur" the previous view. */ |
2032 | update_view_title(prev); | |
9f396969 | 2033 | } |
f0b3ab80 | 2034 | |
f6da0b66 | 2035 | view->parent = prev; |
b801d8b2 JF |
2036 | } |
2037 | ||
9f396969 | 2038 | if (view->pipe && view->lines == 0) { |
03a93dbb JF |
2039 | /* Clear the old view and let the incremental updating refill |
2040 | * the screen. */ | |
2041 | wclear(view->win); | |
f97f4012 | 2042 | report(""); |
03a93dbb JF |
2043 | } else { |
2044 | redraw_view(view); | |
24b5b3e0 | 2045 | report(""); |
03a93dbb | 2046 | } |
6706b2ba JF |
2047 | |
2048 | /* If the view is backgrounded the above calls to report() | |
2049 | * won't redraw the view title. */ | |
2050 | if (backgrounded) | |
2051 | update_view_title(view); | |
b801d8b2 JF |
2052 | } |
2053 | ||
2054 | ||
6b161b31 JF |
2055 | /* |
2056 | * User request switch noodle | |
2057 | */ | |
2058 | ||
b801d8b2 | 2059 | static int |
6b161b31 | 2060 | view_driver(struct view *view, enum request request) |
b801d8b2 | 2061 | { |
b801d8b2 JF |
2062 | int i; |
2063 | ||
2064 | switch (request) { | |
4a2909a7 JF |
2065 | case REQ_MOVE_UP: |
2066 | case REQ_MOVE_DOWN: | |
2067 | case REQ_MOVE_PAGE_UP: | |
2068 | case REQ_MOVE_PAGE_DOWN: | |
2069 | case REQ_MOVE_FIRST_LINE: | |
2070 | case REQ_MOVE_LAST_LINE: | |
8522ecc7 | 2071 | move_view(view, request); |
fd85fef1 JF |
2072 | break; |
2073 | ||
4a2909a7 JF |
2074 | case REQ_SCROLL_LINE_DOWN: |
2075 | case REQ_SCROLL_LINE_UP: | |
2076 | case REQ_SCROLL_PAGE_DOWN: | |
2077 | case REQ_SCROLL_PAGE_UP: | |
a28bcc22 | 2078 | scroll_view(view, request); |
b801d8b2 JF |
2079 | break; |
2080 | ||
e733ee54 JF |
2081 | case REQ_VIEW_BLOB: |
2082 | if (!ref_blob[0]) { | |
2083 | report("No file chosen, press 't' to open tree view"); | |
2084 | break; | |
2085 | } | |
2086 | /* Fall-through */ | |
4a2909a7 | 2087 | case REQ_VIEW_MAIN: |
4a2909a7 | 2088 | case REQ_VIEW_DIFF: |
2e8488b4 | 2089 | case REQ_VIEW_LOG: |
e733ee54 | 2090 | case REQ_VIEW_TREE: |
2e8488b4 | 2091 | case REQ_VIEW_HELP: |
6908bdbd | 2092 | case REQ_VIEW_PAGER: |
49f2b43f | 2093 | open_view(view, request, OPEN_DEFAULT); |
b801d8b2 JF |
2094 | break; |
2095 | ||
b3a54cba JF |
2096 | case REQ_NEXT: |
2097 | case REQ_PREVIOUS: | |
2098 | request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP; | |
2099 | ||
e733ee54 JF |
2100 | if ((view == VIEW(REQ_VIEW_DIFF) && |
2101 | view->parent == VIEW(REQ_VIEW_MAIN)) || | |
2102 | (view == VIEW(REQ_VIEW_BLOB) && | |
2103 | view->parent == VIEW(REQ_VIEW_TREE))) { | |
b3a54cba | 2104 | view = view->parent; |
8522ecc7 JF |
2105 | move_view(view, request); |
2106 | if (view_is_displayed(view)) | |
f0b3ab80 | 2107 | update_view_title(view); |
b3a54cba | 2108 | } else { |
8522ecc7 | 2109 | move_view(view, request); |
b3a54cba JF |
2110 | break; |
2111 | } | |
6706b2ba JF |
2112 | /* Fall-through */ |
2113 | ||
6b161b31 | 2114 | case REQ_ENTER: |
6908bdbd JF |
2115 | if (!view->lines) { |
2116 | report("Nothing to enter"); | |
2117 | break; | |
2118 | } | |
fe7233c3 | 2119 | return view->ops->enter(view, &view->line[view->lineno]); |
6b161b31 | 2120 | |
03a93dbb JF |
2121 | case REQ_VIEW_NEXT: |
2122 | { | |
9f41488f | 2123 | int nviews = displayed_views(); |
03a93dbb JF |
2124 | int next_view = (current_view + 1) % nviews; |
2125 | ||
2126 | if (next_view == current_view) { | |
2127 | report("Only one view is displayed"); | |
2128 | break; | |
2129 | } | |
2130 | ||
2131 | current_view = next_view; | |
2132 | /* Blur out the title of the previous view. */ | |
2133 | update_view_title(view); | |
6734f6b9 | 2134 | report(""); |
03a93dbb JF |
2135 | break; |
2136 | } | |
24b5b3e0 | 2137 | case REQ_TOGGLE_LINENO: |
b76c2afc | 2138 | opt_line_number = !opt_line_number; |
20bb5e18 | 2139 | redraw_display(); |
b801d8b2 JF |
2140 | break; |
2141 | ||
54efb62b JF |
2142 | case REQ_TOGGLE_REV_GRAPH: |
2143 | opt_rev_graph = !opt_rev_graph; | |
2144 | redraw_display(); | |
2145 | break; | |
2146 | ||
03a93dbb | 2147 | case REQ_PROMPT: |
8855ada4 | 2148 | /* Always reload^Wrerun commands from the prompt. */ |
49f2b43f | 2149 | open_view(view, opt_request, OPEN_RELOAD); |
03a93dbb JF |
2150 | break; |
2151 | ||
4af34daa JF |
2152 | case REQ_SEARCH: |
2153 | case REQ_SEARCH_BACK: | |
c02d8fce | 2154 | search_view(view, request); |
4af34daa JF |
2155 | break; |
2156 | ||
2157 | case REQ_FIND_NEXT: | |
2158 | case REQ_FIND_PREV: | |
2159 | find_next(view, request); | |
2160 | break; | |
2161 | ||
4a2909a7 | 2162 | case REQ_STOP_LOADING: |
59a45d3a JF |
2163 | for (i = 0; i < ARRAY_SIZE(views); i++) { |
2164 | view = &views[i]; | |
2e8488b4 | 2165 | if (view->pipe) |
6a7bb912 | 2166 | report("Stopped loading the %s view", view->name), |
03a93dbb JF |
2167 | end_update(view); |
2168 | } | |
b801d8b2 JF |
2169 | break; |
2170 | ||
4a2909a7 | 2171 | case REQ_SHOW_VERSION: |
6cb291b7 | 2172 | report("%s (built %s)", VERSION, __DATE__); |
b801d8b2 JF |
2173 | return TRUE; |
2174 | ||
fac7db6c JF |
2175 | case REQ_SCREEN_RESIZE: |
2176 | resize_display(); | |
2177 | /* Fall-through */ | |
4a2909a7 | 2178 | case REQ_SCREEN_REDRAW: |
20bb5e18 | 2179 | redraw_display(); |
4a2909a7 JF |
2180 | break; |
2181 | ||
1d754561 | 2182 | case REQ_NONE: |
b801d8b2 JF |
2183 | doupdate(); |
2184 | return TRUE; | |
2185 | ||
4f9b667a | 2186 | case REQ_VIEW_CLOSE: |
2fcf5401 JF |
2187 | /* XXX: Mark closed views by letting view->parent point to the |
2188 | * view itself. Parents to closed view should never be | |
2189 | * followed. */ | |
2190 | if (view->parent && | |
2191 | view->parent->parent != view->parent) { | |
4f9b667a JF |
2192 | memset(display, 0, sizeof(display)); |
2193 | current_view = 0; | |
f6da0b66 | 2194 | display[current_view] = view->parent; |
2fcf5401 | 2195 | view->parent = view; |
4f9b667a JF |
2196 | resize_display(); |
2197 | redraw_display(); | |
2198 | break; | |
2199 | } | |
2200 | /* Fall-through */ | |
b801d8b2 JF |
2201 | case REQ_QUIT: |
2202 | return FALSE; | |
2203 | ||
2204 | default: | |
2e8488b4 | 2205 | /* An unknown key will show most commonly used commands. */ |
468876c9 | 2206 | report("Unknown key, press 'h' for help"); |
b801d8b2 JF |
2207 | return TRUE; |
2208 | } | |
2209 | ||
2210 | return TRUE; | |
2211 | } | |
2212 | ||
2213 | ||
2214 | /* | |
ff26aa29 | 2215 | * Pager backend |
b801d8b2 JF |
2216 | */ |
2217 | ||
6b161b31 | 2218 | static bool |
5dcf8064 | 2219 | pager_draw(struct view *view, struct line *line, unsigned int lineno, bool selected) |
b801d8b2 | 2220 | { |
fe7233c3 JF |
2221 | char *text = line->data; |
2222 | enum line_type type = line->type; | |
2223 | int textlen = strlen(text); | |
78c70acd | 2224 | int attr; |
b801d8b2 | 2225 | |
6706b2ba JF |
2226 | wmove(view->win, lineno, 0); |
2227 | ||
5dcf8064 | 2228 | if (selected) { |
78c70acd | 2229 | type = LINE_CURSOR; |
6706b2ba | 2230 | wchgat(view->win, -1, 0, type, NULL); |
fd85fef1 JF |
2231 | } |
2232 | ||
78c70acd | 2233 | attr = get_line_attr(type); |
b801d8b2 | 2234 | wattrset(view->win, attr); |
b76c2afc | 2235 | |
6706b2ba JF |
2236 | if (opt_line_number || opt_tab_size < TABSIZE) { |
2237 | static char spaces[] = " "; | |
2238 | int col_offset = 0, col = 0; | |
2239 | ||
2240 | if (opt_line_number) { | |
2241 | unsigned long real_lineno = view->offset + lineno + 1; | |
82e78006 | 2242 | |
6706b2ba JF |
2243 | if (real_lineno == 1 || |
2244 | (real_lineno % opt_num_interval) == 0) { | |
2245 | wprintw(view->win, "%.*d", view->digits, real_lineno); | |
8855ada4 | 2246 | |
6706b2ba JF |
2247 | } else { |
2248 | waddnstr(view->win, spaces, | |
2249 | MIN(view->digits, STRING_SIZE(spaces))); | |
2250 | } | |
2251 | waddstr(view->win, ": "); | |
2252 | col_offset = view->digits + 2; | |
2253 | } | |
8855ada4 | 2254 | |
fe7233c3 | 2255 | while (text && col_offset + col < view->width) { |
6706b2ba | 2256 | int cols_max = view->width - col_offset - col; |
fe7233c3 | 2257 | char *pos = text; |
6706b2ba | 2258 | int cols; |
4c6fabc2 | 2259 | |
fe7233c3 JF |
2260 | if (*text == '\t') { |
2261 | text++; | |
6706b2ba | 2262 | assert(sizeof(spaces) > TABSIZE); |
fe7233c3 | 2263 | pos = spaces; |
6706b2ba | 2264 | cols = opt_tab_size - (col % opt_tab_size); |
82e78006 | 2265 | |
b76c2afc | 2266 | } else { |
fe7233c3 JF |
2267 | text = strchr(text, '\t'); |
2268 | cols = line ? text - pos : strlen(pos); | |
b76c2afc | 2269 | } |
6706b2ba | 2270 | |
fe7233c3 | 2271 | waddnstr(view->win, pos, MIN(cols, cols_max)); |
6706b2ba | 2272 | col += cols; |
b76c2afc | 2273 | } |
b76c2afc JF |
2274 | |
2275 | } else { | |
6706b2ba | 2276 | int col = 0, pos = 0; |
b801d8b2 | 2277 | |
fe7233c3 JF |
2278 | for (; pos < textlen && col < view->width; pos++, col++) |
2279 | if (text[pos] == '\t') | |
6706b2ba JF |
2280 | col += TABSIZE - (col % TABSIZE) - 1; |
2281 | ||
fe7233c3 | 2282 | waddnstr(view->win, text, pos); |
6706b2ba | 2283 | } |
2e8488b4 | 2284 | |
b801d8b2 JF |
2285 | return TRUE; |
2286 | } | |
2287 | ||
dc23c0e3 | 2288 | static bool |
d65ced0d | 2289 | add_describe_ref(char *buf, size_t *bufpos, char *commit_id, const char *sep) |
dc23c0e3 | 2290 | { |
17482b11 | 2291 | char refbuf[SIZEOF_STR]; |
dc23c0e3 JF |
2292 | char *ref = NULL; |
2293 | FILE *pipe; | |
2294 | ||
2295 | if (!string_format(refbuf, "git describe %s", commit_id)) | |
2296 | return TRUE; | |
2297 | ||
2298 | pipe = popen(refbuf, "r"); | |
2299 | if (!pipe) | |
2300 | return TRUE; | |
2301 | ||
2302 | if ((ref = fgets(refbuf, sizeof(refbuf), pipe))) | |
2303 | ref = chomp_string(ref); | |
2304 | pclose(pipe); | |
2305 | ||
2306 | if (!ref || !*ref) | |
2307 | return TRUE; | |
2308 | ||
2309 | /* This is the only fatal call, since it can "corrupt" the buffer. */ | |
17482b11 | 2310 | if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref)) |
dc23c0e3 JF |
2311 | return FALSE; |
2312 | ||
2313 | return TRUE; | |
2314 | } | |
2315 | ||
7b99a34c JF |
2316 | static void |
2317 | add_pager_refs(struct view *view, struct line *line) | |
2318 | { | |
17482b11 | 2319 | char buf[SIZEOF_STR]; |
c9ca1ec3 | 2320 | char *commit_id = line->data + STRING_SIZE("commit "); |
7b99a34c | 2321 | struct ref **refs; |
d65ced0d | 2322 | size_t bufpos = 0, refpos = 0; |
7b99a34c | 2323 | const char *sep = "Refs: "; |
dc23c0e3 | 2324 | bool is_tag = FALSE; |
7b99a34c JF |
2325 | |
2326 | assert(line->type == LINE_COMMIT); | |
2327 | ||
c9ca1ec3 | 2328 | refs = get_refs(commit_id); |
dc23c0e3 JF |
2329 | if (!refs) { |
2330 | if (view == VIEW(REQ_VIEW_DIFF)) | |
2331 | goto try_add_describe_ref; | |
7b99a34c | 2332 | return; |
dc23c0e3 | 2333 | } |
7b99a34c JF |
2334 | |
2335 | do { | |
cc2d1364 JF |
2336 | struct ref *ref = refs[refpos]; |
2337 | char *fmt = ref->tag ? "%s[%s]" : "%s%s"; | |
7b99a34c | 2338 | |
cc2d1364 JF |
2339 | if (!string_format_from(buf, &bufpos, fmt, sep, ref->name)) |
2340 | return; | |
7b99a34c | 2341 | sep = ", "; |
dc23c0e3 JF |
2342 | if (ref->tag) |
2343 | is_tag = TRUE; | |
7b99a34c JF |
2344 | } while (refs[refpos++]->next); |
2345 | ||
dc23c0e3 JF |
2346 | if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) { |
2347 | try_add_describe_ref: | |
d42c8a35 | 2348 | /* Add <tag>-g<commit_id> "fake" reference. */ |
dc23c0e3 JF |
2349 | if (!add_describe_ref(buf, &bufpos, commit_id, sep)) |
2350 | return; | |
2351 | } | |
2352 | ||
d42c8a35 JF |
2353 | if (bufpos == 0) |
2354 | return; | |
2355 | ||
cc2d1364 | 2356 | if (!realloc_lines(view, view->line_size + 1)) |
7b99a34c JF |
2357 | return; |
2358 | ||
2359 | line = &view->line[view->lines]; | |
2360 | line->data = strdup(buf); | |
2361 | if (!line->data) | |
2362 | return; | |
2363 | ||
2364 | line->type = LINE_PP_REFS; | |
2365 | view->lines++; | |
2366 | } | |
2367 | ||
6b161b31 | 2368 | static bool |
701e4f5d | 2369 | pager_read(struct view *view, char *data) |
22f66b0a | 2370 | { |
7b99a34c | 2371 | struct line *line = &view->line[view->lines]; |
22f66b0a | 2372 | |
7b99a34c JF |
2373 | line->data = strdup(data); |
2374 | if (!line->data) | |
2375 | return FALSE; | |
fe7233c3 | 2376 | |
7b99a34c | 2377 | line->type = get_line_type(line->data); |
22f66b0a | 2378 | view->lines++; |
7b99a34c JF |
2379 | |
2380 | if (line->type == LINE_COMMIT && | |
2381 | (view == VIEW(REQ_VIEW_DIFF) || | |
2382 | view == VIEW(REQ_VIEW_LOG))) | |
2383 | add_pager_refs(view, line); | |
2384 | ||
22f66b0a JF |
2385 | return TRUE; |
2386 | } | |
2387 | ||
6b161b31 | 2388 | static bool |
fe7233c3 | 2389 | pager_enter(struct view *view, struct line *line) |
6b161b31 | 2390 | { |
91e8e277 | 2391 | int split = 0; |
6b161b31 | 2392 | |
9fbbd28f JF |
2393 | if (line->type == LINE_COMMIT && |
2394 | (view == VIEW(REQ_VIEW_LOG) || | |
2395 | view == VIEW(REQ_VIEW_PAGER))) { | |
91e8e277 JF |
2396 | open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT); |
2397 | split = 1; | |
67e48ac5 JF |
2398 | } |
2399 | ||
91e8e277 JF |
2400 | /* Always scroll the view even if it was split. That way |
2401 | * you can use Enter to scroll through the log view and | |
2402 | * split open each commit diff. */ | |
2403 | scroll_view(view, REQ_SCROLL_LINE_DOWN); | |
2404 | ||
2405 | /* FIXME: A minor workaround. Scrolling the view will call report("") | |
9d82d824 JF |
2406 | * but if we are scrolling a non-current view this won't properly |
2407 | * update the view title. */ | |
91e8e277 JF |
2408 | if (split) |
2409 | update_view_title(view); | |
6b161b31 JF |
2410 | |
2411 | return TRUE; | |
2412 | } | |
2413 | ||
4af34daa JF |
2414 | static bool |
2415 | pager_grep(struct view *view, struct line *line) | |
2416 | { | |
2417 | regmatch_t pmatch; | |
2418 | char *text = line->data; | |
2419 | ||
2420 | if (!*text) | |
2421 | return FALSE; | |
2422 | ||
b77b2cb8 | 2423 | if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH) |
4af34daa JF |
2424 | return FALSE; |
2425 | ||
2426 | return TRUE; | |
2427 | } | |
2428 | ||
d720de4b JF |
2429 | static void |
2430 | pager_select(struct view *view, struct line *line) | |
2431 | { | |
2432 | if (line->type == LINE_COMMIT) { | |
2433 | char *text = line->data; | |
2434 | ||
5dcf8064 | 2435 | string_copy(view->ref, text + STRING_SIZE("commit ")); |
d720de4b JF |
2436 | string_copy(ref_commit, view->ref); |
2437 | } | |
2438 | } | |
2439 | ||
6b161b31 | 2440 | static struct view_ops pager_ops = { |
6734f6b9 | 2441 | "line", |
6b161b31 JF |
2442 | pager_draw, |
2443 | pager_read, | |
2444 | pager_enter, | |
4af34daa | 2445 | pager_grep, |
d720de4b | 2446 | pager_select, |
6b161b31 JF |
2447 | }; |
2448 | ||
80ce96ea | 2449 | |
ff26aa29 | 2450 | /* |
e733ee54 JF |
2451 | * Tree backend |
2452 | */ | |
2453 | ||
4795d620 | 2454 | /* Parse output from git-ls-tree(1): |
e733ee54 JF |
2455 | * |
2456 | * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile | |
2457 | * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README | |
2458 | * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c | |
2459 | * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf | |
2460 | */ | |
2461 | ||
2462 | #define SIZEOF_TREE_ATTR \ | |
2463 | STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t") | |
2464 | ||
2465 | #define TREE_UP_FORMAT "040000 tree %s\t.." | |
2466 | ||
2467 | static int | |
2468 | tree_compare_entry(enum line_type type1, char *name1, | |
2469 | enum line_type type2, char *name2) | |
2470 | { | |
2471 | if (type1 != type2) { | |
2472 | if (type1 == LINE_TREE_DIR) | |
2473 | return -1; | |
2474 | return 1; | |
2475 | } | |
2476 | ||
2477 | return strcmp(name1, name2); | |
2478 | } | |
2479 | ||
2480 | static bool | |
2481 | tree_read(struct view *view, char *text) | |
2482 | { | |
2483 | size_t textlen = strlen(text); | |
2484 | char buf[SIZEOF_STR]; | |
2485 | unsigned long pos; | |
2486 | enum line_type type; | |
f88a5319 | 2487 | bool first_read = view->lines == 0; |
e733ee54 JF |
2488 | |
2489 | if (textlen <= SIZEOF_TREE_ATTR) | |
2490 | return FALSE; | |
2491 | ||
2492 | type = text[STRING_SIZE("100644 ")] == 't' | |
2493 | ? LINE_TREE_DIR : LINE_TREE_FILE; | |
2494 | ||
f88a5319 | 2495 | if (first_read) { |
e733ee54 | 2496 | /* Add path info line */ |
4ea4ce91 | 2497 | if (string_format(buf, "Directory path /%s", opt_path) && |
e733ee54 JF |
2498 | realloc_lines(view, view->line_size + 1) && |
2499 | pager_read(view, buf)) | |
2500 | view->line[view->lines - 1].type = LINE_DEFAULT; | |
2501 | else | |
2502 | return FALSE; | |
2503 | ||
2504 | /* Insert "link" to parent directory. */ | |
2505 | if (*opt_path && | |
4ea4ce91 | 2506 | string_format(buf, TREE_UP_FORMAT, view->ref) && |
e733ee54 JF |
2507 | realloc_lines(view, view->line_size + 1) && |
2508 | pager_read(view, buf)) | |
2509 | view->line[view->lines - 1].type = LINE_TREE_DIR; | |
2510 | else if (*opt_path) | |
2511 | return FALSE; | |
2512 | } | |
2513 | ||
2514 | /* Strip the path part ... */ | |
2515 | if (*opt_path) { | |
2516 | size_t pathlen = textlen - SIZEOF_TREE_ATTR; | |
2517 | size_t striplen = strlen(opt_path); | |
2518 | char *path = text + SIZEOF_TREE_ATTR; | |
2519 | ||
2520 | if (pathlen > striplen) | |
2521 | memmove(path, path + striplen, | |
2522 | pathlen - striplen + 1); | |
2523 | } | |
2524 | ||
2525 | /* Skip "Directory ..." and ".." line. */ | |
2526 | for (pos = 1 + !!*opt_path; pos < view->lines; pos++) { | |
2527 | struct line *line = &view->line[pos]; | |
2528 | char *path1 = ((char *) line->data) + SIZEOF_TREE_ATTR; | |
2529 | char *path2 = text + SIZEOF_TREE_ATTR; | |
2530 | int cmp = tree_compare_entry(line->type, path1, type, path2); | |
2531 | ||
2532 | if (cmp <= 0) | |
2533 | continue; | |
2534 | ||
2535 | text = strdup(text); | |
2536 | if (!text) | |
2537 | return FALSE; | |
2538 | ||
2539 | if (view->lines > pos) | |
2540 | memmove(&view->line[pos + 1], &view->line[pos], | |
2541 | (view->lines - pos) * sizeof(*line)); | |
2542 | ||
2543 | line = &view->line[pos]; | |
2544 | line->data = text; | |
2545 | line->type = type; | |
2546 | view->lines++; | |
2547 | return TRUE; | |
2548 | } | |
2549 | ||
2550 | if (!pager_read(view, text)) | |
2551 | return FALSE; | |
2552 | ||
f88a5319 JF |
2553 | /* Move the current line to the first tree entry. */ |
2554 | if (first_read) | |
2555 | view->lineno++; | |
2556 | ||
e733ee54 JF |
2557 | view->line[view->lines - 1].type = type; |
2558 | return TRUE; | |
2559 | } | |
2560 | ||
2561 | static bool | |
2562 | tree_enter(struct view *view, struct line *line) | |
2563 | { | |
2b42e5d6 | 2564 | enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT; |
e733ee54 JF |
2565 | enum request request; |
2566 | ||
2567 | switch (line->type) { | |
2568 | case LINE_TREE_DIR: | |
2569 | /* Depending on whether it is a subdir or parent (updir?) link | |
2570 | * mangle the path buffer. */ | |
2571 | if (line == &view->line[1] && *opt_path) { | |
2572 | size_t path_len = strlen(opt_path); | |
2573 | char *dirsep = opt_path + path_len - 1; | |
2574 | ||
2575 | while (dirsep > opt_path && dirsep[-1] != '/') | |
2576 | dirsep--; | |
2577 | ||
2578 | dirsep[0] = 0; | |
2579 | ||
2580 | } else { | |
d65ced0d | 2581 | size_t pathlen = strlen(opt_path); |
4ea4ce91 | 2582 | size_t origlen = pathlen; |
4795d620 | 2583 | char *data = line->data; |
e733ee54 JF |
2584 | char *basename = data + SIZEOF_TREE_ATTR; |
2585 | ||
4038038f | 2586 | if (!string_format_from(opt_path, &pathlen, "%s/", basename)) { |
4ea4ce91 JF |
2587 | opt_path[origlen] = 0; |
2588 | return TRUE; | |
2589 | } | |
e733ee54 JF |
2590 | } |
2591 | ||
2592 | /* Trees and subtrees share the same ID, so they are not not | |
2593 | * unique like blobs. */ | |
2594 | flags |= OPEN_RELOAD; | |
2595 | request = REQ_VIEW_TREE; | |
2596 | break; | |
2597 | ||
2598 | case LINE_TREE_FILE: | |
e733ee54 JF |
2599 | request = REQ_VIEW_BLOB; |
2600 | break; | |
2601 | ||
2602 | default: | |
2603 | return TRUE; | |
2604 | } | |
2605 | ||
2606 | open_view(view, request, flags); | |
2607 | ||
e733ee54 JF |
2608 | return TRUE; |
2609 | } | |
2610 | ||
d720de4b JF |
2611 | static void |
2612 | tree_select(struct view *view, struct line *line) | |
2613 | { | |
73c76ef5 JF |
2614 | char *text = line->data; |
2615 | ||
2616 | text += STRING_SIZE("100644 blob "); | |
2617 | ||
2618 | if (line->type == LINE_TREE_FILE) { | |
2619 | string_ncopy(ref_blob, text, 40); | |
2620 | /* Also update the blob view's ref, since all there must always | |
2621 | * be in sync. */ | |
2622 | string_copy(VIEW(REQ_VIEW_BLOB)->ref, ref_blob); | |
d720de4b | 2623 | |
ebbaf4fe JF |
2624 | } else if (line->type != LINE_TREE_DIR) { |
2625 | return; | |
d720de4b | 2626 | } |
ebbaf4fe JF |
2627 | |
2628 | string_ncopy(view->ref, text, 40); | |
d720de4b JF |
2629 | } |
2630 | ||
e733ee54 JF |
2631 | static struct view_ops tree_ops = { |
2632 | "file", | |
2633 | pager_draw, | |
2634 | tree_read, | |
2635 | tree_enter, | |
2636 | pager_grep, | |
d720de4b | 2637 | tree_select, |
e733ee54 JF |
2638 | }; |
2639 | ||
2640 | static bool | |
2641 | blob_read(struct view *view, char *line) | |
2642 | { | |
2643 | bool state = pager_read(view, line); | |
2644 | ||
2645 | if (state == TRUE) | |
2646 | view->line[view->lines - 1].type = LINE_DEFAULT; | |
2647 | ||
2648 | return state; | |
2649 | } | |
2650 | ||
2651 | static struct view_ops blob_ops = { | |
2652 | "line", | |
2653 | pager_draw, | |
2654 | blob_read, | |
2655 | pager_enter, | |
2656 | pager_grep, | |
d720de4b | 2657 | pager_select, |
e733ee54 JF |
2658 | }; |
2659 | ||
2660 | ||
2661 | /* | |
ff26aa29 JF |
2662 | * Main view backend |
2663 | */ | |
2664 | ||
2665 | struct commit { | |
10446330 | 2666 | char id[SIZEOF_REV]; /* SHA1 ID. */ |
54efb62b JF |
2667 | char title[75]; /* First line of the commit message. */ |
2668 | char author[75]; /* Author of the commit. */ | |
2669 | struct tm time; /* Date from the author ident. */ | |
2670 | struct ref **refs; /* Repository references. */ | |
2671 | chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */ | |
2672 | size_t graph_size; /* The width of the graph array. */ | |
ff26aa29 | 2673 | }; |
c34d9c9f | 2674 | |
6b161b31 | 2675 | static bool |
5dcf8064 | 2676 | main_draw(struct view *view, struct line *line, unsigned int lineno, bool selected) |
22f66b0a | 2677 | { |
2e8488b4 | 2678 | char buf[DATE_COLS + 1]; |
fe7233c3 | 2679 | struct commit *commit = line->data; |
78c70acd | 2680 | enum line_type type; |
6706b2ba | 2681 | int col = 0; |
b76c2afc | 2682 | size_t timelen; |
10e290ee | 2683 | size_t authorlen; |
9989bf60 | 2684 | int trimmed = 1; |
22f66b0a | 2685 | |
4c6fabc2 JF |
2686 | if (!*commit->author) |
2687 | return FALSE; | |
22f66b0a | 2688 | |
6706b2ba JF |
2689 | wmove(view->win, lineno, col); |
2690 | ||
5dcf8064 | 2691 | if (selected) { |
78c70acd | 2692 | type = LINE_CURSOR; |
6706b2ba JF |
2693 | wattrset(view->win, get_line_attr(type)); |
2694 | wchgat(view->win, -1, 0, type, NULL); | |
2695 | ||
78c70acd | 2696 | } else { |
b76c2afc | 2697 | type = LINE_MAIN_COMMIT; |
6706b2ba | 2698 | wattrset(view->win, get_line_attr(LINE_MAIN_DATE)); |
b76c2afc JF |
2699 | } |
2700 | ||
4c6fabc2 | 2701 | timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time); |
b76c2afc | 2702 | waddnstr(view->win, buf, timelen); |
4c6fabc2 | 2703 | waddstr(view->win, " "); |
b76c2afc | 2704 | |
6706b2ba JF |
2705 | col += DATE_COLS; |
2706 | wmove(view->win, lineno, col); | |
2707 | if (type != LINE_CURSOR) | |
2708 | wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR)); | |
b76c2afc | 2709 | |
9989bf60 JF |
2710 | if (opt_utf8) { |
2711 | authorlen = utf8_length(commit->author, AUTHOR_COLS - 2, &col, &trimmed); | |
2712 | } else { | |
2713 | authorlen = strlen(commit->author); | |
2714 | if (authorlen > AUTHOR_COLS - 2) { | |
2715 | authorlen = AUTHOR_COLS - 2; | |
2716 | trimmed = 1; | |
2717 | } | |
2718 | } | |
10e290ee JF |
2719 | |
2720 | if (trimmed) { | |
2721 | waddnstr(view->win, commit->author, authorlen); | |
6706b2ba JF |
2722 | if (type != LINE_CURSOR) |
2723 | wattrset(view->win, get_line_attr(LINE_MAIN_DELIM)); | |
b76c2afc JF |
2724 | waddch(view->win, '~'); |
2725 | } else { | |
2726 | waddstr(view->win, commit->author); | |
22f66b0a JF |
2727 | } |
2728 | ||
10e290ee | 2729 | col += AUTHOR_COLS; |
6706b2ba JF |
2730 | if (type != LINE_CURSOR) |
2731 | wattrset(view->win, A_NORMAL); | |
2732 | ||
54efb62b JF |
2733 | if (opt_rev_graph && commit->graph_size) { |
2734 | size_t i; | |
2735 | ||
2736 | wmove(view->win, lineno, col); | |
2737 | /* Using waddch() instead of waddnstr() ensures that | |
2738 | * they'll be rendered correctly for the cursor line. */ | |
2739 | for (i = 0; i < commit->graph_size; i++) | |
2740 | waddch(view->win, commit->graph[i]); | |
2741 | ||
2742 | col += commit->graph_size + 1; | |
2743 | } | |
2744 | ||
2745 | wmove(view->win, lineno, col); | |
c34d9c9f JF |
2746 | |
2747 | if (commit->refs) { | |
2748 | size_t i = 0; | |
2749 | ||
2750 | do { | |
6706b2ba JF |
2751 | if (type == LINE_CURSOR) |
2752 | ; | |
2753 | else if (commit->refs[i]->tag) | |
c34d9c9f JF |
2754 | wattrset(view->win, get_line_attr(LINE_MAIN_TAG)); |
2755 | else | |
2756 | wattrset(view->win, get_line_attr(LINE_MAIN_REF)); | |
2757 | waddstr(view->win, "["); | |
2758 | waddstr(view->win, commit->refs[i]->name); | |
2759 | waddstr(view->win, "]"); | |
6706b2ba JF |
2760 | if (type != LINE_CURSOR) |
2761 | wattrset(view->win, A_NORMAL); | |
c34d9c9f | 2762 | waddstr(view->win, " "); |
6706b2ba | 2763 | col += strlen(commit->refs[i]->name) + STRING_SIZE("[] "); |
c34d9c9f JF |
2764 | } while (commit->refs[i++]->next); |
2765 | } | |
2766 | ||
6706b2ba JF |
2767 | if (type != LINE_CURSOR) |
2768 | wattrset(view->win, get_line_attr(type)); | |
2769 | ||
2770 | { | |
2771 | int titlelen = strlen(commit->title); | |
2772 | ||
2773 | if (col + titlelen > view->width) | |
2774 | titlelen = view->width - col; | |
2775 | ||
2776 | waddnstr(view->win, commit->title, titlelen); | |
2777 | } | |
22f66b0a JF |
2778 | |
2779 | return TRUE; | |
2780 | } | |
2781 | ||
2b757533 JF |
2782 | |
2783 | struct rev_stack { | |
2784 | char rev[SIZEOF_REVITEMS][SIZEOF_REV]; | |
2785 | size_t size; | |
2786 | }; | |
2787 | ||
2788 | /* The current stack of revisions on the graph. */ | |
2789 | static struct rev_stack graph_stacks[2]; | |
2790 | static unsigned int graph_stack_no; | |
2791 | ||
2792 | /* Parents of the commit being visualized. */ | |
2793 | static struct rev_stack graph_parents; | |
2794 | ||
2795 | static void | |
2796 | push_rev_stack(struct rev_stack *stack, char *parent) | |
2797 | { | |
2798 | fprintf(stderr, " (%s)", parent); | |
2799 | ||
2800 | /* Combine duplicate parents lines. */ | |
2801 | if (stack->size > 0 && | |
2802 | !strncmp(stack->rev[stack->size - 1], parent, SIZEOF_REV)) | |
2803 | return; | |
2804 | ||
2805 | if (stack->size < SIZEOF_REVITEMS) { | |
2806 | string_ncopy(stack->rev[stack->size++], parent, SIZEOF_REV); | |
2807 | } | |
2808 | } | |
2809 | ||
2810 | void | |
2811 | update_rev_graph(struct commit *commit) | |
2812 | { | |
2813 | struct rev_stack *stack = &graph_stacks[graph_stack_no++ & 1]; | |
2814 | struct rev_stack *graph = &graph_stacks[graph_stack_no & 1]; | |
1dcb3bec | 2815 | chtype symbol; |
2b757533 JF |
2816 | size_t stackpos = 0; |
2817 | size_t i; | |
2818 | ||
2819 | // FIXME: Initial commit ... assert(rev_graph_commit == commit); | |
2820 | fprintf(stderr, "\n%p <%s> ", graph, commit->id); | |
2821 | ||
2822 | /* First traverse all lines of revisions up to the active one. */ | |
2823 | for (stackpos = 0; stackpos < stack->size; stackpos++) { | |
2824 | if (!strcmp(stack->rev[stackpos], commit->id)) { | |
1dcb3bec | 2825 | while (stackpos + 1 < stack->size && |
2b757533 JF |
2826 | !strcmp(stack->rev[stackpos + 1], commit->id)) |
2827 | stackpos++; | |
2828 | break; | |
2829 | } | |
2830 | ||
2831 | push_rev_stack(graph, stack->rev[stackpos]); | |
2832 | commit->graph[commit->graph_size++] = ACS_VLINE; | |
2833 | commit->graph[commit->graph_size++] = ' '; | |
2834 | } | |
2835 | ||
2836 | assert(commit->graph_size < ARRAY_SIZE(commit->graph)); | |
2837 | ||
2838 | for (i = 0; i < graph_parents.size; i++) | |
2839 | push_rev_stack(graph, graph_parents.rev[i]); | |
2840 | ||
2841 | /* Place the symbol for this commit. */ | |
2842 | if (graph_parents.size == 0) | |
1dcb3bec | 2843 | symbol = 'I'; |
2b757533 | 2844 | else if (graph_parents.size > 1) |
1dcb3bec | 2845 | symbol = 'M'; |
2b757533 | 2846 | else if (stackpos >= stack->size) |
1dcb3bec | 2847 | symbol = '+'; |
2b757533 | 2848 | else |
1dcb3bec JF |
2849 | symbol = '*'; |
2850 | ||
2851 | commit->graph[commit->graph_size++] = symbol; | |
2b757533 JF |
2852 | |
2853 | stackpos++; | |
2854 | ||
2855 | /* FIXME: Moving branches left and right when collapsing a branch. */ | |
2856 | while (stackpos < stack->size) { | |
2857 | push_rev_stack(graph, stack->rev[stackpos++]); | |
2858 | commit->graph[commit->graph_size++] = ' '; | |
2859 | commit->graph[commit->graph_size++] = ACS_VLINE; | |
2860 | } | |
2861 | ||
2862 | stack->size = graph_parents.size = 0; | |
2863 | } | |
2864 | ||
4c6fabc2 | 2865 | /* Reads git log --pretty=raw output and parses it into the commit struct. */ |
6b161b31 | 2866 | static bool |
701e4f5d | 2867 | main_read(struct view *view, char *line) |
22f66b0a | 2868 | { |
78c70acd | 2869 | enum line_type type = get_line_type(line); |
701e4f5d JF |
2870 | struct commit *commit = view->lines |
2871 | ? view->line[view->lines - 1].data : NULL; | |
22f66b0a | 2872 | |
78c70acd JF |
2873 | switch (type) { |
2874 | case LINE_COMMIT: | |
22f66b0a JF |
2875 | commit = calloc(1, sizeof(struct commit)); |
2876 | if (!commit) | |
2877 | return FALSE; | |
2878 | ||
4c6fabc2 | 2879 | line += STRING_SIZE("commit "); |
b76c2afc | 2880 | |
fe7233c3 | 2881 | view->line[view->lines++].data = commit; |
82e78006 | 2882 | string_copy(commit->id, line); |
c34d9c9f | 2883 | commit->refs = get_refs(commit->id); |
2b757533 JF |
2884 | fprintf(stderr, "\n%p [%s]", &graph_stacks[graph_stack_no], commit->id); |
2885 | break; | |
2886 | ||
2887 | case LINE_PARENT: | |
2888 | if (commit) { | |
2889 | line += STRING_SIZE("parent "); | |
2890 | push_rev_stack(&graph_parents, line); | |
2891 | } | |
78c70acd | 2892 | break; |
22f66b0a | 2893 | |
8855ada4 | 2894 | case LINE_AUTHOR: |
b76c2afc | 2895 | { |
4c6fabc2 | 2896 | char *ident = line + STRING_SIZE("author "); |
b76c2afc JF |
2897 | char *end = strchr(ident, '<'); |
2898 | ||
701e4f5d | 2899 | if (!commit) |
fe7233c3 JF |
2900 | break; |
2901 | ||
2b757533 JF |
2902 | update_rev_graph(commit); |
2903 | ||
b76c2afc | 2904 | if (end) { |
cbbf2d1b JF |
2905 | char *email = end + 1; |
2906 | ||
b76c2afc | 2907 | for (; end > ident && isspace(end[-1]); end--) ; |
cbbf2d1b JF |
2908 | |
2909 | if (end == ident && *email) { | |
2910 | ident = email; | |
2911 | end = strchr(ident, '>'); | |
2912 | for (; end > ident && isspace(end[-1]); end--) ; | |
2913 | } | |
b76c2afc JF |
2914 | *end = 0; |
2915 | } | |
2916 | ||
cbbf2d1b JF |
2917 | /* End is NULL or ident meaning there's no author. */ |
2918 | if (end <= ident) | |
2919 | ident = "Unknown"; | |
2920 | ||
82e78006 | 2921 | string_copy(commit->author, ident); |
b76c2afc | 2922 | |
4c6fabc2 | 2923 | /* Parse epoch and timezone */ |
b76c2afc JF |
2924 | if (end) { |
2925 | char *secs = strchr(end + 1, '>'); | |
2926 | char *zone; | |
2927 | time_t time; | |
2928 | ||
2929 | if (!secs || secs[1] != ' ') | |
2930 | break; | |
2931 | ||
2932 | secs += 2; | |
2933 | time = (time_t) atol(secs); | |
2934 | zone = strchr(secs, ' '); | |
4c6fabc2 | 2935 | if (zone && strlen(zone) == STRING_SIZE(" +0700")) { |
b76c2afc JF |
2936 | long tz; |
2937 | ||
2938 | zone++; | |
2939 | tz = ('0' - zone[1]) * 60 * 60 * 10; | |
2940 | tz += ('0' - zone[2]) * 60 * 60; | |
2941 | tz += ('0' - zone[3]) * 60; | |
2942 | tz += ('0' - zone[4]) * 60; | |
2943 | ||
2944 | if (zone[0] == '-') | |
2945 | tz = -tz; | |
2946 | ||
2947 | time -= tz; | |
2948 | } | |
2949 | gmtime_r(&time, &commit->time); | |
2950 | } | |
2951 | break; | |
2952 | } | |
78c70acd | 2953 | default: |
701e4f5d | 2954 | if (!commit) |
2e8488b4 JF |
2955 | break; |
2956 | ||
2957 | /* Fill in the commit title if it has not already been set. */ | |
2e8488b4 JF |
2958 | if (commit->title[0]) |
2959 | break; | |
2960 | ||
2961 | /* Require titles to start with a non-space character at the | |
2962 | * offset used by git log. */ | |
eb98559e JF |
2963 | /* FIXME: More gracefull handling of titles; append "..." to |
2964 | * shortened titles, etc. */ | |
2e8488b4 | 2965 | if (strncmp(line, " ", 4) || |
eb98559e | 2966 | isspace(line[4])) |
82e78006 JF |
2967 | break; |
2968 | ||
2969 | string_copy(commit->title, line + 4); | |
22f66b0a JF |
2970 | } |
2971 | ||
2972 | return TRUE; | |
2973 | } | |
2974 | ||
6b161b31 | 2975 | static bool |
fe7233c3 | 2976 | main_enter(struct view *view, struct line *line) |
b801d8b2 | 2977 | { |
b3a54cba JF |
2978 | enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT; |
2979 | ||
2980 | open_view(view, REQ_VIEW_DIFF, flags); | |
6b161b31 | 2981 | return TRUE; |
b801d8b2 JF |
2982 | } |
2983 | ||
4af34daa JF |
2984 | static bool |
2985 | main_grep(struct view *view, struct line *line) | |
2986 | { | |
2987 | struct commit *commit = line->data; | |
2988 | enum { S_TITLE, S_AUTHOR, S_DATE, S_END } state; | |
2989 | char buf[DATE_COLS + 1]; | |
2990 | regmatch_t pmatch; | |
2991 | ||
2992 | for (state = S_TITLE; state < S_END; state++) { | |
2993 | char *text; | |
2994 | ||
2995 | switch (state) { | |
2996 | case S_TITLE: text = commit->title; break; | |
2997 | case S_AUTHOR: text = commit->author; break; | |
2998 | case S_DATE: | |
2999 | if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time)) | |
3000 | continue; | |
3001 | text = buf; | |
3002 | break; | |
3003 | ||
3004 | default: | |
3005 | return FALSE; | |
3006 | } | |
3007 | ||
b77b2cb8 | 3008 | if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH) |
4af34daa JF |
3009 | return TRUE; |
3010 | } | |
3011 | ||
3012 | return FALSE; | |
3013 | } | |
3014 | ||
d720de4b JF |
3015 | static void |
3016 | main_select(struct view *view, struct line *line) | |
3017 | { | |
3018 | struct commit *commit = line->data; | |
3019 | ||
3020 | string_copy(view->ref, commit->id); | |
3021 | string_copy(ref_commit, view->ref); | |
3022 | } | |
3023 | ||
6b161b31 | 3024 | static struct view_ops main_ops = { |
6734f6b9 | 3025 | "commit", |
6b161b31 JF |
3026 | main_draw, |
3027 | main_read, | |
3028 | main_enter, | |
4af34daa | 3029 | main_grep, |
d720de4b | 3030 | main_select, |
6b161b31 | 3031 | }; |
2e8488b4 | 3032 | |
c34d9c9f | 3033 | |
6b161b31 | 3034 | /* |
10e290ee JF |
3035 | * Unicode / UTF-8 handling |
3036 | * | |
3037 | * NOTE: Much of the following code for dealing with unicode is derived from | |
3038 | * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is | |
3039 | * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28. | |
3040 | */ | |
3041 | ||
3042 | /* I've (over)annotated a lot of code snippets because I am not entirely | |
3043 | * confident that the approach taken by this small UTF-8 interface is correct. | |
3044 | * --jonas */ | |
3045 | ||
3046 | static inline int | |
3047 | unicode_width(unsigned long c) | |
3048 | { | |
3049 | if (c >= 0x1100 && | |
3050 | (c <= 0x115f /* Hangul Jamo */ | |
3051 | || c == 0x2329 | |
3052 | || c == 0x232a | |
3053 | || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f) | |
f97f4012 | 3054 | /* CJK ... Yi */ |
10e290ee JF |
3055 | || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */ |
3056 | || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */ | |
3057 | || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */ | |
3058 | || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */ | |
3059 | || (c >= 0xffe0 && c <= 0xffe6) | |
3060 | || (c >= 0x20000 && c <= 0x2fffd) | |
3061 | || (c >= 0x30000 && c <= 0x3fffd))) | |
3062 | return 2; | |
3063 | ||
3064 | return 1; | |
3065 | } | |
3066 | ||
3067 | /* Number of bytes used for encoding a UTF-8 character indexed by first byte. | |
3068 | * Illegal bytes are set one. */ | |
3069 | static const unsigned char utf8_bytes[256] = { | |
3070 | 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, | |
3071 | 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, | |
3072 | 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, | |
3073 | 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, | |
3074 | 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, | |
3075 | 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, | |
3076 | 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, | |
3077 | 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, | |
3078 | }; | |
3079 | ||
3080 | /* Decode UTF-8 multi-byte representation into a unicode character. */ | |
3081 | static inline unsigned long | |
3082 | utf8_to_unicode(const char *string, size_t length) | |
3083 | { | |
3084 | unsigned long unicode; | |
3085 | ||
3086 | switch (length) { | |
3087 | case 1: | |
3088 | unicode = string[0]; | |
3089 | break; | |
3090 | case 2: | |
3091 | unicode = (string[0] & 0x1f) << 6; | |
3092 | unicode += (string[1] & 0x3f); | |
3093 | break; | |
3094 | case 3: | |
3095 | unicode = (string[0] & 0x0f) << 12; | |
3096 | unicode += ((string[1] & 0x3f) << 6); | |
3097 | unicode += (string[2] & 0x3f); | |
3098 | break; | |
3099 | case 4: | |
3100 | unicode = (string[0] & 0x0f) << 18; | |
3101 | unicode += ((string[1] & 0x3f) << 12); | |
3102 | unicode += ((string[2] & 0x3f) << 6); | |
3103 | unicode += (string[3] & 0x3f); | |
3104 | break; | |
3105 | case 5: | |
3106 | unicode = (string[0] & 0x0f) << 24; | |
3107 | unicode += ((string[1] & 0x3f) << 18); | |
3108 | unicode += ((string[2] & 0x3f) << 12); | |
3109 | unicode += ((string[3] & 0x3f) << 6); | |
3110 | unicode += (string[4] & 0x3f); | |
3111 | break; | |
68b6e0eb | 3112 | case 6: |
10e290ee JF |
3113 | unicode = (string[0] & 0x01) << 30; |
3114 | unicode += ((string[1] & 0x3f) << 24); | |
3115 | unicode += ((string[2] & 0x3f) << 18); | |
3116 | unicode += ((string[3] & 0x3f) << 12); | |
3117 | unicode += ((string[4] & 0x3f) << 6); | |
3118 | unicode += (string[5] & 0x3f); | |
3119 | break; | |
3120 | default: | |
3121 | die("Invalid unicode length"); | |
3122 | } | |
3123 | ||
3124 | /* Invalid characters could return the special 0xfffd value but NUL | |
3125 | * should be just as good. */ | |
3126 | return unicode > 0xffff ? 0 : unicode; | |
3127 | } | |
3128 | ||
3129 | /* Calculates how much of string can be shown within the given maximum width | |
3130 | * and sets trimmed parameter to non-zero value if all of string could not be | |
3131 | * shown. | |
3132 | * | |
3133 | * Additionally, adds to coloffset how many many columns to move to align with | |
3134 | * the expected position. Takes into account how multi-byte and double-width | |
3135 | * characters will effect the cursor position. | |
3136 | * | |
3137 | * Returns the number of bytes to output from string to satisfy max_width. */ | |
3138 | static size_t | |
3139 | utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed) | |
3140 | { | |
3141 | const char *start = string; | |
3142 | const char *end = strchr(string, '\0'); | |
3143 | size_t mbwidth = 0; | |
3144 | size_t width = 0; | |
3145 | ||
3146 | *trimmed = 0; | |
3147 | ||
3148 | while (string < end) { | |
3149 | int c = *(unsigned char *) string; | |
3150 | unsigned char bytes = utf8_bytes[c]; | |
3151 | size_t ucwidth; | |
3152 | unsigned long unicode; | |
3153 | ||
3154 | if (string + bytes > end) | |
3155 | break; | |
3156 | ||
3157 | /* Change representation to figure out whether | |
3158 | * it is a single- or double-width character. */ | |
3159 | ||
3160 | unicode = utf8_to_unicode(string, bytes); | |
3161 | /* FIXME: Graceful handling of invalid unicode character. */ | |
3162 | if (!unicode) | |
3163 | break; | |
3164 | ||
3165 | ucwidth = unicode_width(unicode); | |
3166 | width += ucwidth; | |
3167 | if (width > max_width) { | |
3168 | *trimmed = 1; | |
3169 | break; | |
3170 | } | |
3171 | ||
3172 | /* The column offset collects the differences between the | |
3173 | * number of bytes encoding a character and the number of | |
3174 | * columns will be used for rendering said character. | |
3175 | * | |
3176 | * So if some character A is encoded in 2 bytes, but will be | |
3177 | * represented on the screen using only 1 byte this will and up | |
3178 | * adding 1 to the multi-byte column offset. | |
3179 | * | |
3180 | * Assumes that no double-width character can be encoding in | |
3181 | * less than two bytes. */ | |
3182 | if (bytes > ucwidth) | |
3183 | mbwidth += bytes - ucwidth; | |
3184 | ||
3185 | string += bytes; | |
3186 | } | |
3187 | ||
3188 | *coloffset += mbwidth; | |
3189 | ||
3190 | return string - start; | |
3191 | } | |
3192 | ||
3193 | ||
3194 | /* | |
6b161b31 JF |
3195 | * Status management |
3196 | */ | |
2e8488b4 | 3197 | |
8855ada4 | 3198 | /* Whether or not the curses interface has been initialized. */ |
68b6e0eb | 3199 | static bool cursed = FALSE; |
8855ada4 | 3200 | |
6b161b31 JF |
3201 | /* The status window is used for polling keystrokes. */ |
3202 | static WINDOW *status_win; | |
4a2909a7 | 3203 | |
2e8488b4 | 3204 | /* Update status and title window. */ |
4a2909a7 JF |
3205 | static void |
3206 | report(const char *msg, ...) | |
3207 | { | |
6706b2ba JF |
3208 | static bool empty = TRUE; |
3209 | struct view *view = display[current_view]; | |
b76c2afc | 3210 | |
6706b2ba JF |
3211 | if (!empty || *msg) { |
3212 | va_list args; | |
4a2909a7 | 3213 | |
6706b2ba | 3214 | va_start(args, msg); |
4b76734f | 3215 | |
6706b2ba JF |
3216 | werase(status_win); |
3217 | wmove(status_win, 0, 0); | |
3218 | if (*msg) { | |
3219 | vwprintw(status_win, msg, args); | |
3220 | empty = FALSE; | |
3221 | } else { | |
3222 | empty = TRUE; | |
3223 | } | |
3224 | wrefresh(status_win); | |
b801d8b2 | 3225 | |
6706b2ba JF |
3226 | va_end(args); |
3227 | } | |
3228 | ||
3229 | update_view_title(view); | |
85af6284 | 3230 | update_display_cursor(); |
b801d8b2 JF |
3231 | } |
3232 | ||
6b161b31 JF |
3233 | /* Controls when nodelay should be in effect when polling user input. */ |
3234 | static void | |
1ba2ae4b | 3235 | set_nonblocking_input(bool loading) |
b801d8b2 | 3236 | { |
6706b2ba | 3237 | static unsigned int loading_views; |
b801d8b2 | 3238 | |
6706b2ba JF |
3239 | if ((loading == FALSE && loading_views-- == 1) || |
3240 | (loading == TRUE && loading_views++ == 0)) | |
1ba2ae4b | 3241 | nodelay(status_win, loading); |
6b161b31 JF |
3242 | } |
3243 | ||
3244 | static void | |
3245 | init_display(void) | |
3246 | { | |
3247 | int x, y; | |
b76c2afc | 3248 | |
6908bdbd JF |
3249 | /* Initialize the curses library */ |
3250 | if (isatty(STDIN_FILENO)) { | |
8855ada4 | 3251 | cursed = !!initscr(); |
6908bdbd JF |
3252 | } else { |
3253 | /* Leave stdin and stdout alone when acting as a pager. */ | |
3254 | FILE *io = fopen("/dev/tty", "r+"); | |
3255 | ||
e6f60674 JF |
3256 | if (!io) |
3257 | die("Failed to open /dev/tty"); | |
8855ada4 | 3258 | cursed = !!newterm(NULL, io, io); |
6908bdbd JF |
3259 | } |
3260 | ||
8855ada4 JF |
3261 | if (!cursed) |
3262 | die("Failed to initialize curses"); | |
3263 | ||
2e8488b4 JF |
3264 | nonl(); /* Tell curses not to do NL->CR/NL on output */ |
3265 | cbreak(); /* Take input chars one at a time, no wait for \n */ | |
3266 | noecho(); /* Don't echo input */ | |
b801d8b2 | 3267 | leaveok(stdscr, TRUE); |
b801d8b2 JF |
3268 | |
3269 | if (has_colors()) | |
3270 | init_colors(); | |
3271 | ||
3272 | getmaxyx(stdscr, y, x); | |
3273 | status_win = newwin(1, 0, y - 1, 0); | |
3274 | if (!status_win) | |
3275 | die("Failed to create status window"); | |
3276 | ||
3277 | /* Enable keyboard mapping */ | |
3278 | keypad(status_win, TRUE); | |
78c70acd | 3279 | wbkgdset(status_win, get_line_attr(LINE_STATUS)); |
6b161b31 JF |
3280 | } |
3281 | ||
4af34daa | 3282 | static char * |
cb9e48c1 | 3283 | read_prompt(const char *prompt) |
ef5404a4 JF |
3284 | { |
3285 | enum { READING, STOP, CANCEL } status = READING; | |
9e21ce5c | 3286 | static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")]; |
ef5404a4 JF |
3287 | int pos = 0; |
3288 | ||
3289 | while (status == READING) { | |
3290 | struct view *view; | |
3291 | int i, key; | |
3292 | ||
699ae55b | 3293 | foreach_view (view, i) |
ef5404a4 JF |
3294 | update_view(view); |
3295 | ||
cb9e48c1 | 3296 | report("%s%.*s", prompt, pos, buf); |
ef5404a4 JF |
3297 | /* Refresh, accept single keystroke of input */ |
3298 | key = wgetch(status_win); | |
3299 | switch (key) { | |
3300 | case KEY_RETURN: | |
3301 | case KEY_ENTER: | |
3302 | case '\n': | |
3303 | status = pos ? STOP : CANCEL; | |
3304 | break; | |
3305 | ||
3306 | case KEY_BACKSPACE: | |
3307 | if (pos > 0) | |
3308 | pos--; | |
3309 | else | |
3310 | status = CANCEL; | |
3311 | break; | |
3312 | ||
3313 | case KEY_ESC: | |
3314 | status = CANCEL; | |
3315 | break; | |
3316 | ||
3317 | case ERR: | |
3318 | break; | |
3319 | ||
3320 | default: | |
3321 | if (pos >= sizeof(buf)) { | |
3322 | report("Input string too long"); | |
9e21ce5c | 3323 | return NULL; |
ef5404a4 JF |
3324 | } |
3325 | ||
3326 | if (isprint(key)) | |
3327 | buf[pos++] = (char) key; | |
3328 | } | |
3329 | } | |
3330 | ||
3331 | if (status == CANCEL) { | |
3332 | /* Clear the status window */ | |
3333 | report(""); | |
9e21ce5c | 3334 | return NULL; |
ef5404a4 JF |
3335 | } |
3336 | ||
3337 | buf[pos++] = 0; | |
ef5404a4 | 3338 | |
9e21ce5c | 3339 | return buf; |
ef5404a4 | 3340 | } |
c34d9c9f JF |
3341 | |
3342 | /* | |
3343 | * Repository references | |
3344 | */ | |
3345 | ||
3346 | static struct ref *refs; | |
3a91b75e | 3347 | static size_t refs_size; |
c34d9c9f | 3348 | |
1307df1a JF |
3349 | /* Id <-> ref store */ |
3350 | static struct ref ***id_refs; | |
3351 | static size_t id_refs_size; | |
3352 | ||
c34d9c9f JF |
3353 | static struct ref ** |
3354 | get_refs(char *id) | |
3355 | { | |
1307df1a JF |
3356 | struct ref ***tmp_id_refs; |
3357 | struct ref **ref_list = NULL; | |
3358 | size_t ref_list_size = 0; | |
c34d9c9f JF |
3359 | size_t i; |
3360 | ||
1307df1a JF |
3361 | for (i = 0; i < id_refs_size; i++) |
3362 | if (!strcmp(id, id_refs[i][0]->id)) | |
3363 | return id_refs[i]; | |
3364 | ||
3365 | tmp_id_refs = realloc(id_refs, (id_refs_size + 1) * sizeof(*id_refs)); | |
3366 | if (!tmp_id_refs) | |
3367 | return NULL; | |
3368 | ||
3369 | id_refs = tmp_id_refs; | |
3370 | ||
c34d9c9f JF |
3371 | for (i = 0; i < refs_size; i++) { |
3372 | struct ref **tmp; | |
3373 | ||
3374 | if (strcmp(id, refs[i].id)) | |
3375 | continue; | |
3376 | ||
1307df1a | 3377 | tmp = realloc(ref_list, (ref_list_size + 1) * sizeof(*ref_list)); |
c34d9c9f | 3378 | if (!tmp) { |
1307df1a JF |
3379 | if (ref_list) |
3380 | free(ref_list); | |
c34d9c9f JF |
3381 | return NULL; |
3382 | } | |
3383 | ||
1307df1a JF |
3384 | ref_list = tmp; |
3385 | if (ref_list_size > 0) | |
3386 | ref_list[ref_list_size - 1]->next = 1; | |
3387 | ref_list[ref_list_size] = &refs[i]; | |
3af8774e JF |
3388 | |
3389 | /* XXX: The properties of the commit chains ensures that we can | |
3390 | * safely modify the shared ref. The repo references will | |
3391 | * always be similar for the same id. */ | |
1307df1a JF |
3392 | ref_list[ref_list_size]->next = 0; |
3393 | ref_list_size++; | |
c34d9c9f JF |
3394 | } |
3395 | ||
1307df1a JF |
3396 | if (ref_list) |
3397 | id_refs[id_refs_size++] = ref_list; | |
3398 | ||
3399 | return ref_list; | |
c34d9c9f JF |
3400 | } |
3401 | ||
3402 | static int | |
d0cea5f9 | 3403 | read_ref(char *id, int idlen, char *name, int namelen) |
c34d9c9f | 3404 | { |
d0cea5f9 JF |
3405 | struct ref *ref; |
3406 | bool tag = FALSE; | |
d0cea5f9 | 3407 | |
8b0297ae JF |
3408 | if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) { |
3409 | /* Commits referenced by tags has "^{}" appended. */ | |
3410 | if (name[namelen - 1] != '}') | |
3411 | return OK; | |
3412 | ||
d0cea5f9 JF |
3413 | while (namelen > 0 && name[namelen] != '^') |
3414 | namelen--; | |
c34d9c9f | 3415 | |
d0cea5f9 | 3416 | tag = TRUE; |
8b0297ae JF |
3417 | namelen -= STRING_SIZE("refs/tags/"); |
3418 | name += STRING_SIZE("refs/tags/"); | |
c34d9c9f | 3419 | |
d0cea5f9 | 3420 | } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) { |
8b0297ae JF |
3421 | namelen -= STRING_SIZE("refs/heads/"); |
3422 | name += STRING_SIZE("refs/heads/"); | |
c34d9c9f | 3423 | |
d0cea5f9 JF |
3424 | } else if (!strcmp(name, "HEAD")) { |
3425 | return OK; | |
3426 | } | |
6706b2ba | 3427 | |
d0cea5f9 JF |
3428 | refs = realloc(refs, sizeof(*refs) * (refs_size + 1)); |
3429 | if (!refs) | |
3430 | return ERR; | |
c34d9c9f | 3431 | |
d0cea5f9 | 3432 | ref = &refs[refs_size++]; |
8b0297ae | 3433 | ref->name = malloc(namelen + 1); |
d0cea5f9 JF |
3434 | if (!ref->name) |
3435 | return ERR; | |
3af8774e | 3436 | |
8b0297ae JF |
3437 | strncpy(ref->name, name, namelen); |
3438 | ref->name[namelen] = 0; | |
d0cea5f9 JF |
3439 | ref->tag = tag; |
3440 | string_copy(ref->id, id); | |
3af8774e | 3441 | |
d0cea5f9 JF |
3442 | return OK; |
3443 | } | |
c34d9c9f | 3444 | |
d0cea5f9 JF |
3445 | static int |
3446 | load_refs(void) | |
3447 | { | |
3448 | const char *cmd_env = getenv("TIG_LS_REMOTE"); | |
3449 | const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE; | |
c34d9c9f | 3450 | |
4a63c884 | 3451 | return read_properties(popen(cmd, "r"), "\t", read_ref); |
d0cea5f9 | 3452 | } |
c34d9c9f | 3453 | |
d0cea5f9 | 3454 | static int |
14c778a6 | 3455 | read_repo_config_option(char *name, int namelen, char *value, int valuelen) |
d0cea5f9 | 3456 | { |
22913179 | 3457 | if (!strcmp(name, "i18n.commitencoding")) |
d0cea5f9 | 3458 | string_copy(opt_encoding, value); |
c34d9c9f | 3459 | |
c34d9c9f JF |
3460 | return OK; |
3461 | } | |
3462 | ||
4670cf89 | 3463 | static int |
14c778a6 | 3464 | load_repo_config(void) |
4670cf89 | 3465 | { |
66749723 | 3466 | return read_properties(popen("git repo-config --list", "r"), |
14c778a6 | 3467 | "=", read_repo_config_option); |
d0cea5f9 JF |
3468 | } |
3469 | ||
3470 | static int | |
4a63c884 | 3471 | read_properties(FILE *pipe, const char *separators, |
d0cea5f9 JF |
3472 | int (*read_property)(char *, int, char *, int)) |
3473 | { | |
4670cf89 JF |
3474 | char buffer[BUFSIZ]; |
3475 | char *name; | |
d0cea5f9 | 3476 | int state = OK; |
4670cf89 JF |
3477 | |
3478 | if (!pipe) | |
3479 | return ERR; | |
3480 | ||
d0cea5f9 | 3481 | while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) { |
4a63c884 JF |
3482 | char *value; |
3483 | size_t namelen; | |
3484 | size_t valuelen; | |
4670cf89 | 3485 | |
4a63c884 JF |
3486 | name = chomp_string(name); |
3487 | namelen = strcspn(name, separators); | |
3488 | ||
3489 | if (name[namelen]) { | |
3490 | name[namelen] = 0; | |
3491 | value = chomp_string(name + namelen + 1); | |
d0cea5f9 | 3492 | valuelen = strlen(value); |
4670cf89 | 3493 | |
d0cea5f9 | 3494 | } else { |
d0cea5f9 JF |
3495 | value = ""; |
3496 | valuelen = 0; | |
4670cf89 | 3497 | } |
d0cea5f9 | 3498 | |
3c3801c2 | 3499 | state = read_property(name, namelen, value, valuelen); |
4670cf89 JF |
3500 | } |
3501 | ||
d0cea5f9 JF |
3502 | if (state != ERR && ferror(pipe)) |
3503 | state = ERR; | |
4670cf89 JF |
3504 | |
3505 | pclose(pipe); | |
3506 | ||
d0cea5f9 | 3507 | return state; |
4670cf89 JF |
3508 | } |
3509 | ||
d0cea5f9 | 3510 | |
6b161b31 JF |
3511 | /* |
3512 | * Main | |
3513 | */ | |
3514 | ||
b5c9e67f | 3515 | static void __NORETURN |
6b161b31 JF |
3516 | quit(int sig) |
3517 | { | |
8855ada4 JF |
3518 | /* XXX: Restore tty modes and let the OS cleanup the rest! */ |
3519 | if (cursed) | |
3520 | endwin(); | |
6b161b31 JF |
3521 | exit(0); |
3522 | } | |
3523 | ||
c6704a4e JF |
3524 | static void __NORETURN |
3525 | die(const char *err, ...) | |
6b161b31 JF |
3526 | { |
3527 | va_list args; | |
3528 | ||
3529 | endwin(); | |
3530 | ||
3531 | va_start(args, err); | |
3532 | fputs("tig: ", stderr); | |
3533 | vfprintf(stderr, err, args); | |
3534 | fputs("\n", stderr); | |
3535 | va_end(args); | |
3536 | ||
3537 | exit(1); | |
3538 | } | |
3539 | ||
3540 | int | |
3541 | main(int argc, char *argv[]) | |
3542 | { | |
1ba2ae4b | 3543 | struct view *view; |
6b161b31 | 3544 | enum request request; |
1ba2ae4b | 3545 | size_t i; |
6b161b31 JF |
3546 | |
3547 | signal(SIGINT, quit); | |
3548 | ||
6b68fd24 JF |
3549 | if (setlocale(LC_ALL, "")) { |
3550 | string_copy(opt_codeset, nl_langinfo(CODESET)); | |
3551 | } | |
3552 | ||
660e09ad JF |
3553 | if (load_options() == ERR) |
3554 | die("Failed to load user config."); | |
3555 | ||
3556 | /* Load the repo config file so options can be overwritten from | |
afdc35b3 | 3557 | * the command line. */ |
14c778a6 | 3558 | if (load_repo_config() == ERR) |
afdc35b3 JF |
3559 | die("Failed to load repo config."); |
3560 | ||
8855ada4 | 3561 | if (!parse_options(argc, argv)) |
6b161b31 JF |
3562 | return 0; |
3563 | ||
6b68fd24 JF |
3564 | if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) { |
3565 | opt_iconv = iconv_open(opt_codeset, opt_encoding); | |
20f4b4a3 | 3566 | if (opt_iconv == ICONV_NONE) |
6b68fd24 JF |
3567 | die("Failed to initialize character set conversion"); |
3568 | } | |
3569 | ||
c34d9c9f JF |
3570 | if (load_refs() == ERR) |
3571 | die("Failed to load refs."); | |
3572 | ||
7bb55251 JF |
3573 | /* Require a git repository unless when running in pager mode. */ |
3574 | if (refs_size == 0 && opt_request != REQ_VIEW_PAGER) | |
3575 | die("Not a git repository"); | |
3576 | ||
1ba2ae4b JF |
3577 | for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++) |
3578 | view->cmd_env = getenv(view->cmd_env); | |
3579 | ||
6b161b31 JF |
3580 | request = opt_request; |
3581 | ||
3582 | init_display(); | |
b801d8b2 JF |
3583 | |
3584 | while (view_driver(display[current_view], request)) { | |
6b161b31 | 3585 | int key; |
b801d8b2 JF |
3586 | int i; |
3587 | ||
699ae55b | 3588 | foreach_view (view, i) |
6b161b31 | 3589 | update_view(view); |
b801d8b2 JF |
3590 | |
3591 | /* Refresh, accept single keystroke of input */ | |
6b161b31 | 3592 | key = wgetch(status_win); |
04e2b7b2 JF |
3593 | |
3594 | request = get_keybinding(display[current_view]->keymap, key); | |
03a93dbb | 3595 | |
6706b2ba | 3596 | /* Some low-level request handling. This keeps access to |
fac7db6c JF |
3597 | * status_win restricted. */ |
3598 | switch (request) { | |
3599 | case REQ_PROMPT: | |
9e21ce5c JF |
3600 | { |
3601 | char *cmd = read_prompt(":"); | |
3602 | ||
3603 | if (cmd && string_format(opt_cmd, "git %s", cmd)) { | |
3604 | if (strncmp(cmd, "show", 4) && isspace(cmd[4])) { | |
3605 | opt_request = REQ_VIEW_DIFF; | |
3606 | } else { | |
3607 | opt_request = REQ_VIEW_PAGER; | |
3608 | } | |
3609 | break; | |
3610 | } | |
fac7db6c | 3611 | |
1d754561 | 3612 | request = REQ_NONE; |
9e21ce5c JF |
3613 | break; |
3614 | } | |
4af34daa JF |
3615 | case REQ_SEARCH: |
3616 | case REQ_SEARCH_BACK: | |
3617 | { | |
3618 | const char *prompt = request == REQ_SEARCH | |
3619 | ? "/" : "?"; | |
3620 | char *search = read_prompt(prompt); | |
3621 | ||
3622 | if (search) | |
3623 | string_copy(opt_search, search); | |
3624 | else | |
3625 | request = REQ_NONE; | |
3626 | break; | |
3627 | } | |
fac7db6c JF |
3628 | case REQ_SCREEN_RESIZE: |
3629 | { | |
3630 | int height, width; | |
3631 | ||
3632 | getmaxyx(stdscr, height, width); | |
3633 | ||
3634 | /* Resize the status view and let the view driver take | |
3635 | * care of resizing the displayed views. */ | |
3636 | wresize(status_win, 1, width); | |
3637 | mvwin(status_win, height - 1, 0); | |
3638 | wrefresh(status_win); | |
3639 | break; | |
3640 | } | |
3641 | default: | |
3642 | break; | |
03a93dbb | 3643 | } |
b801d8b2 JF |
3644 | } |
3645 | ||
3646 | quit(0); | |
3647 | ||
3648 | return 0; | |
3649 | } |