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 |
d27080b3 | 15 | #define VERSION "tig-0.5.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 | |
82e78006 JF |
65 | /* This color name can be used to refer to the default term colors. */ |
66 | #define COLOR_DEFAULT (-1) | |
78c70acd | 67 | |
6b68fd24 JF |
68 | #define ICONV_NONE ((iconv_t) -1) |
69 | ||
82e78006 | 70 | /* The format and size of the date column in the main view. */ |
4c6fabc2 | 71 | #define DATE_FORMAT "%Y-%m-%d %H:%M" |
6b161b31 | 72 | #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ") |
4c6fabc2 | 73 | |
10e290ee JF |
74 | #define AUTHOR_COLS 20 |
75 | ||
a28bcc22 | 76 | /* The default interval between line numbers. */ |
4a2909a7 | 77 | #define NUMBER_INTERVAL 1 |
82e78006 | 78 | |
6706b2ba JF |
79 | #define TABSIZE 8 |
80 | ||
a28bcc22 JF |
81 | #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3) |
82 | ||
8eb62770 | 83 | #define TIG_LS_REMOTE \ |
337d7377 | 84 | "git ls-remote $(git rev-parse --git-dir) 2>/dev/null" |
8eb62770 JF |
85 | |
86 | #define TIG_DIFF_CMD \ | |
73fb51d5 | 87 | "git show --root --patch-with-stat --find-copies-harder -B -C %s 2>/dev/null" |
8eb62770 JF |
88 | |
89 | #define TIG_LOG_CMD \ | |
8fee6614 | 90 | "git log --cc --stat -n100 %s 2>/dev/null" |
8eb62770 JF |
91 | |
92 | #define TIG_MAIN_CMD \ | |
8fee6614 | 93 | "git log --topo-order --pretty=raw %s 2>/dev/null" |
8eb62770 | 94 | |
e733ee54 JF |
95 | #define TIG_TREE_CMD \ |
96 | "git ls-tree %s %s" | |
97 | ||
98 | #define TIG_BLOB_CMD \ | |
99 | "git cat-file blob %s" | |
100 | ||
8eb62770 JF |
101 | /* XXX: Needs to be defined to the empty string. */ |
102 | #define TIG_HELP_CMD "" | |
103 | #define TIG_PAGER_CMD "" | |
104 | ||
8855ada4 | 105 | /* Some ascii-shorthands fitted into the ncurses namespace. */ |
a28bcc22 JF |
106 | #define KEY_TAB '\t' |
107 | #define KEY_RETURN '\r' | |
4a2909a7 JF |
108 | #define KEY_ESC 27 |
109 | ||
6706b2ba | 110 | |
c34d9c9f | 111 | struct ref { |
468876c9 | 112 | char *name; /* Ref name; tag or head names are shortened. */ |
10446330 | 113 | char id[SIZEOF_REV]; /* Commit SHA1 ID */ |
468876c9 JF |
114 | unsigned int tag:1; /* Is it a tag? */ |
115 | unsigned int next:1; /* For ref lists: are there more refs? */ | |
c34d9c9f JF |
116 | }; |
117 | ||
ff26aa29 | 118 | static struct ref **get_refs(char *id); |
4c6fabc2 | 119 | |
660e09ad JF |
120 | struct int_map { |
121 | const char *name; | |
122 | int namelen; | |
123 | int value; | |
124 | }; | |
125 | ||
126 | static int | |
127 | set_from_int_map(struct int_map *map, size_t map_size, | |
128 | int *value, const char *name, int namelen) | |
129 | { | |
130 | ||
131 | int i; | |
132 | ||
133 | for (i = 0; i < map_size; i++) | |
134 | if (namelen == map[i].namelen && | |
135 | !strncasecmp(name, map[i].name, namelen)) { | |
136 | *value = map[i].value; | |
137 | return OK; | |
138 | } | |
139 | ||
140 | return ERR; | |
141 | } | |
142 | ||
6706b2ba | 143 | |
03a93dbb JF |
144 | /* |
145 | * String helpers | |
146 | */ | |
78c70acd | 147 | |
82e78006 | 148 | static inline void |
9a48919b | 149 | string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen) |
82e78006 | 150 | { |
9a48919b JF |
151 | if (srclen > dstlen - 1) |
152 | srclen = dstlen - 1; | |
03a93dbb | 153 | |
9a48919b JF |
154 | strncpy(dst, src, srclen); |
155 | dst[srclen] = 0; | |
82e78006 JF |
156 | } |
157 | ||
9a48919b JF |
158 | /* Shorthands for safely copying into a fixed buffer. */ |
159 | ||
82e78006 | 160 | #define string_copy(dst, src) \ |
9a48919b JF |
161 | string_ncopy_do(dst, sizeof(dst), src, sizeof(dst)) |
162 | ||
163 | #define string_ncopy(dst, src, srclen) \ | |
164 | string_ncopy_do(dst, sizeof(dst), src, srclen) | |
82e78006 | 165 | |
4a63c884 JF |
166 | static char * |
167 | chomp_string(char *name) | |
168 | { | |
169 | int namelen; | |
170 | ||
171 | while (isspace(*name)) | |
172 | name++; | |
173 | ||
174 | namelen = strlen(name) - 1; | |
175 | while (namelen > 0 && isspace(name[namelen])) | |
176 | name[namelen--] = 0; | |
177 | ||
178 | return name; | |
179 | } | |
180 | ||
cc2d1364 | 181 | static bool |
d65ced0d | 182 | string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...) |
cc2d1364 JF |
183 | { |
184 | va_list args; | |
d65ced0d | 185 | size_t pos = bufpos ? *bufpos : 0; |
cc2d1364 JF |
186 | |
187 | va_start(args, fmt); | |
188 | pos += vsnprintf(buf + pos, bufsize - pos, fmt, args); | |
189 | va_end(args); | |
190 | ||
191 | if (bufpos) | |
192 | *bufpos = pos; | |
193 | ||
194 | return pos >= bufsize ? FALSE : TRUE; | |
195 | } | |
196 | ||
197 | #define string_format(buf, fmt, args...) \ | |
198 | string_nformat(buf, sizeof(buf), NULL, fmt, args) | |
199 | ||
200 | #define string_format_from(buf, from, fmt, args...) \ | |
201 | string_nformat(buf, sizeof(buf), from, fmt, args) | |
6706b2ba | 202 | |
201f5a18 JF |
203 | static int |
204 | string_enum_compare(const char *str1, const char *str2, int len) | |
205 | { | |
206 | size_t i; | |
207 | ||
208 | #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.') | |
209 | ||
210 | /* Diff-Header == DIFF_HEADER */ | |
211 | for (i = 0; i < len; i++) { | |
212 | if (toupper(str1[i]) == toupper(str2[i])) | |
213 | continue; | |
214 | ||
215 | if (string_enum_sep(str1[i]) && | |
216 | string_enum_sep(str2[i])) | |
217 | continue; | |
218 | ||
219 | return str1[i] - str2[i]; | |
220 | } | |
221 | ||
222 | return 0; | |
223 | } | |
224 | ||
03a93dbb JF |
225 | /* Shell quoting |
226 | * | |
227 | * NOTE: The following is a slightly modified copy of the git project's shell | |
228 | * quoting routines found in the quote.c file. | |
229 | * | |
230 | * Help to copy the thing properly quoted for the shell safety. any single | |
231 | * quote is replaced with '\'', any exclamation point is replaced with '\!', | |
232 | * and the whole thing is enclosed in a | |
233 | * | |
234 | * E.g. | |
235 | * original sq_quote result | |
236 | * name ==> name ==> 'name' | |
237 | * a b ==> a b ==> 'a b' | |
238 | * a'b ==> a'\''b ==> 'a'\''b' | |
239 | * a!b ==> a'\!'b ==> 'a'\!'b' | |
240 | */ | |
241 | ||
242 | static size_t | |
17482b11 | 243 | sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src) |
03a93dbb JF |
244 | { |
245 | char c; | |
246 | ||
17482b11 | 247 | #define BUFPUT(x) do { if (bufsize < SIZEOF_STR) buf[bufsize++] = (x); } while (0) |
03a93dbb JF |
248 | |
249 | BUFPUT('\''); | |
250 | while ((c = *src++)) { | |
251 | if (c == '\'' || c == '!') { | |
252 | BUFPUT('\''); | |
253 | BUFPUT('\\'); | |
254 | BUFPUT(c); | |
255 | BUFPUT('\''); | |
256 | } else { | |
257 | BUFPUT(c); | |
258 | } | |
259 | } | |
260 | BUFPUT('\''); | |
261 | ||
262 | return bufsize; | |
263 | } | |
264 | ||
82e78006 | 265 | |
24b5b3e0 JF |
266 | /* |
267 | * User requests | |
268 | */ | |
269 | ||
270 | #define REQ_INFO \ | |
271 | /* XXX: Keep the view request first and in sync with views[]. */ \ | |
272 | REQ_GROUP("View switching") \ | |
273 | REQ_(VIEW_MAIN, "Show main view"), \ | |
274 | REQ_(VIEW_DIFF, "Show diff view"), \ | |
275 | REQ_(VIEW_LOG, "Show log view"), \ | |
e733ee54 JF |
276 | REQ_(VIEW_TREE, "Show tree view"), \ |
277 | REQ_(VIEW_BLOB, "Show blob view"), \ | |
24b5b3e0 JF |
278 | REQ_(VIEW_HELP, "Show help page"), \ |
279 | REQ_(VIEW_PAGER, "Show pager view"), \ | |
280 | \ | |
281 | REQ_GROUP("View manipulation") \ | |
282 | REQ_(ENTER, "Enter current line and scroll"), \ | |
283 | REQ_(NEXT, "Move to next"), \ | |
284 | REQ_(PREVIOUS, "Move to previous"), \ | |
285 | REQ_(VIEW_NEXT, "Move focus to next view"), \ | |
286 | REQ_(VIEW_CLOSE, "Close the current view"), \ | |
287 | REQ_(QUIT, "Close all views and quit"), \ | |
288 | \ | |
289 | REQ_GROUP("Cursor navigation") \ | |
290 | REQ_(MOVE_UP, "Move cursor one line up"), \ | |
291 | REQ_(MOVE_DOWN, "Move cursor one line down"), \ | |
292 | REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \ | |
293 | REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \ | |
294 | REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \ | |
295 | REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \ | |
296 | \ | |
297 | REQ_GROUP("Scrolling") \ | |
298 | REQ_(SCROLL_LINE_UP, "Scroll one line up"), \ | |
299 | REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \ | |
300 | REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \ | |
301 | REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \ | |
302 | \ | |
4af34daa JF |
303 | REQ_GROUP("Searching") \ |
304 | REQ_(SEARCH, "Search the view"), \ | |
305 | REQ_(SEARCH_BACK, "Search backwards in the view"), \ | |
306 | REQ_(FIND_NEXT, "Find next search match"), \ | |
307 | REQ_(FIND_PREV, "Find previous search match"), \ | |
308 | \ | |
24b5b3e0 | 309 | REQ_GROUP("Misc") \ |
1d754561 | 310 | REQ_(NONE, "Do nothing"), \ |
24b5b3e0 | 311 | REQ_(PROMPT, "Bring up the prompt"), \ |
24b5b3e0 JF |
312 | REQ_(SCREEN_REDRAW, "Redraw the screen"), \ |
313 | REQ_(SCREEN_RESIZE, "Resize the screen"), \ | |
314 | REQ_(SHOW_VERSION, "Show version information"), \ | |
315 | REQ_(STOP_LOADING, "Stop all loading views"), \ | |
54efb62b | 316 | REQ_(TOGGLE_LINENO, "Toggle line numbers"), \ |
04e2b7b2 | 317 | REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization") |
24b5b3e0 JF |
318 | |
319 | ||
320 | /* User action requests. */ | |
321 | enum request { | |
322 | #define REQ_GROUP(help) | |
323 | #define REQ_(req, help) REQ_##req | |
324 | ||
325 | /* Offset all requests to avoid conflicts with ncurses getch values. */ | |
326 | REQ_OFFSET = KEY_MAX + 1, | |
04e2b7b2 JF |
327 | REQ_INFO, |
328 | REQ_UNKNOWN, | |
24b5b3e0 JF |
329 | |
330 | #undef REQ_GROUP | |
331 | #undef REQ_ | |
332 | }; | |
333 | ||
334 | struct request_info { | |
335 | enum request request; | |
04e2b7b2 JF |
336 | char *name; |
337 | int namelen; | |
24b5b3e0 JF |
338 | char *help; |
339 | }; | |
340 | ||
341 | static struct request_info req_info[] = { | |
04e2b7b2 JF |
342 | #define REQ_GROUP(help) { 0, NULL, 0, (help) }, |
343 | #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) } | |
24b5b3e0 JF |
344 | REQ_INFO |
345 | #undef REQ_GROUP | |
346 | #undef REQ_ | |
347 | }; | |
348 | ||
04e2b7b2 JF |
349 | static enum request |
350 | get_request(const char *name) | |
351 | { | |
352 | int namelen = strlen(name); | |
353 | int i; | |
354 | ||
355 | for (i = 0; i < ARRAY_SIZE(req_info); i++) | |
356 | if (req_info[i].namelen == namelen && | |
357 | !string_enum_compare(req_info[i].name, name, namelen)) | |
358 | return req_info[i].request; | |
359 | ||
360 | return REQ_UNKNOWN; | |
361 | } | |
362 | ||
363 | ||
8eb62770 JF |
364 | /* |
365 | * Options | |
366 | */ | |
b76c2afc | 367 | |
4b8c01a3 JF |
368 | static const char usage[] = |
369 | VERSION " (" __DATE__ ")\n" | |
370 | "\n" | |
371 | "Usage: tig [options]\n" | |
372 | " or: tig [options] [--] [git log options]\n" | |
373 | " or: tig [options] log [git log options]\n" | |
374 | " or: tig [options] diff [git diff options]\n" | |
375 | " or: tig [options] show [git show options]\n" | |
376 | " or: tig [options] < [git command output]\n" | |
377 | "\n" | |
378 | "Options:\n" | |
379 | " -l Start up in log view\n" | |
380 | " -d Start up in diff view\n" | |
381 | " -n[I], --line-number[=I] Show line numbers with given interval\n" | |
b3c965c9 | 382 | " -b[N], --tab-size[=N] Set number of spaces for tab expansion\n" |
4b8c01a3 JF |
383 | " -- Mark end of tig options\n" |
384 | " -v, --version Show version and exit\n" | |
385 | " -h, --help Show help message and exit\n"; | |
386 | ||
6706b2ba | 387 | /* Option and state variables. */ |
92d30f5c JF |
388 | static bool opt_line_number = FALSE; |
389 | static bool opt_rev_graph = TRUE; | |
390 | static int opt_num_interval = NUMBER_INTERVAL; | |
391 | static int opt_tab_size = TABSIZE; | |
392 | static enum request opt_request = REQ_VIEW_MAIN; | |
393 | static char opt_cmd[SIZEOF_STR] = ""; | |
e733ee54 | 394 | static char opt_path[SIZEOF_STR] = ""; |
92d30f5c JF |
395 | static FILE *opt_pipe = NULL; |
396 | static char opt_encoding[20] = "UTF-8"; | |
397 | static bool opt_utf8 = TRUE; | |
398 | static char opt_codeset[20] = "UTF-8"; | |
399 | static iconv_t opt_iconv = ICONV_NONE; | |
400 | static char opt_search[SIZEOF_STR] = ""; | |
b76c2afc | 401 | |
6dbf6c19 JF |
402 | enum option_type { |
403 | OPT_NONE, | |
404 | OPT_INT, | |
405 | }; | |
406 | ||
407 | static bool | |
408 | check_option(char *opt, char short_name, char *name, enum option_type type, ...) | |
409 | { | |
410 | va_list args; | |
411 | char *value = ""; | |
412 | int *number; | |
413 | ||
414 | if (opt[0] != '-') | |
415 | return FALSE; | |
416 | ||
417 | if (opt[1] == '-') { | |
418 | int namelen = strlen(name); | |
419 | ||
420 | opt += 2; | |
421 | ||
422 | if (strncmp(opt, name, namelen)) | |
423 | return FALSE; | |
424 | ||
425 | if (opt[namelen] == '=') | |
426 | value = opt + namelen + 1; | |
427 | ||
428 | } else { | |
429 | if (!short_name || opt[1] != short_name) | |
430 | return FALSE; | |
431 | value = opt + 2; | |
432 | } | |
433 | ||
434 | va_start(args, type); | |
435 | if (type == OPT_INT) { | |
436 | number = va_arg(args, int *); | |
437 | if (isdigit(*value)) | |
438 | *number = atoi(value); | |
439 | } | |
440 | va_end(args); | |
441 | ||
442 | return TRUE; | |
443 | } | |
444 | ||
b76c2afc | 445 | /* Returns the index of log or diff command or -1 to exit. */ |
8855ada4 | 446 | static bool |
b76c2afc JF |
447 | parse_options(int argc, char *argv[]) |
448 | { | |
449 | int i; | |
450 | ||
451 | for (i = 1; i < argc; i++) { | |
452 | char *opt = argv[i]; | |
453 | ||
3621d94e JF |
454 | if (!strcmp(opt, "log") || |
455 | !strcmp(opt, "diff") || | |
456 | !strcmp(opt, "show")) { | |
457 | opt_request = opt[0] == 'l' | |
458 | ? REQ_VIEW_LOG : REQ_VIEW_DIFF; | |
459 | break; | |
460 | } | |
461 | ||
8d27b36e JF |
462 | if (opt[0] && opt[0] != '-') |
463 | break; | |
464 | ||
6b161b31 | 465 | if (!strcmp(opt, "-l")) { |
4a2909a7 | 466 | opt_request = REQ_VIEW_LOG; |
6b161b31 JF |
467 | continue; |
468 | } | |
b76c2afc | 469 | |
6b161b31 | 470 | if (!strcmp(opt, "-d")) { |
4a2909a7 | 471 | opt_request = REQ_VIEW_DIFF; |
6b161b31 JF |
472 | continue; |
473 | } | |
b76c2afc | 474 | |
6dbf6c19 | 475 | if (check_option(opt, 'n', "line-number", OPT_INT, &opt_num_interval)) { |
6b161b31 JF |
476 | opt_line_number = TRUE; |
477 | continue; | |
478 | } | |
b76c2afc | 479 | |
6dbf6c19 JF |
480 | if (check_option(opt, 'b', "tab-size", OPT_INT, &opt_tab_size)) { |
481 | opt_tab_size = MIN(opt_tab_size, TABSIZE); | |
6706b2ba JF |
482 | continue; |
483 | } | |
484 | ||
6dbf6c19 | 485 | if (check_option(opt, 'v', "version", OPT_NONE)) { |
b76c2afc | 486 | printf("tig version %s\n", VERSION); |
8855ada4 | 487 | return FALSE; |
6b161b31 | 488 | } |
b76c2afc | 489 | |
6dbf6c19 | 490 | if (check_option(opt, 'h', "help", OPT_NONE)) { |
4b8c01a3 JF |
491 | printf(usage); |
492 | return FALSE; | |
493 | } | |
494 | ||
6908bdbd JF |
495 | if (!strcmp(opt, "--")) { |
496 | i++; | |
497 | break; | |
498 | } | |
03a93dbb | 499 | |
bf174187 | 500 | die("unknown option '%s'\n\n%s", opt, usage); |
b76c2afc JF |
501 | } |
502 | ||
6908bdbd | 503 | if (!isatty(STDIN_FILENO)) { |
6908bdbd JF |
504 | opt_request = REQ_VIEW_PAGER; |
505 | opt_pipe = stdin; | |
506 | ||
507 | } else if (i < argc) { | |
508 | size_t buf_size; | |
509 | ||
6908bdbd | 510 | if (opt_request == REQ_VIEW_MAIN) |
8855ada4 JF |
511 | /* XXX: This is vulnerable to the user overriding |
512 | * options required for the main view parser. */ | |
832a47c4 | 513 | string_copy(opt_cmd, "git log --pretty=raw"); |
6908bdbd JF |
514 | else |
515 | string_copy(opt_cmd, "git"); | |
516 | buf_size = strlen(opt_cmd); | |
517 | ||
518 | while (buf_size < sizeof(opt_cmd) && i < argc) { | |
519 | opt_cmd[buf_size++] = ' '; | |
520 | buf_size = sq_quote(opt_cmd, buf_size, argv[i++]); | |
521 | } | |
522 | ||
523 | if (buf_size >= sizeof(opt_cmd)) | |
524 | die("command too long"); | |
525 | ||
526 | opt_cmd[buf_size] = 0; | |
6908bdbd JF |
527 | } |
528 | ||
afdc35b3 JF |
529 | if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8")) |
530 | opt_utf8 = FALSE; | |
531 | ||
8855ada4 | 532 | return TRUE; |
b76c2afc JF |
533 | } |
534 | ||
535 | ||
54efb62b JF |
536 | /* |
537 | * Line-oriented content detection. | |
538 | */ | |
539 | ||
2e8488b4 | 540 | #define LINE_INFO \ |
660e09ad | 541 | LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
542 | LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
543 | LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
544 | LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \ | |
660e09ad JF |
545 | LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
546 | LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
547 | LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
548 | LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
549 | LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
550 | LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
551 | LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
552 | LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
553 | LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
554 | LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
6908bdbd | 555 | LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
8855ada4 | 556 | LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
6908bdbd JF |
557 | LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
558 | LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
8855ada4 JF |
559 | LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
560 | LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
7b99a34c | 561 | LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
562 | LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \ |
563 | LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
564 | LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
8855ada4 | 565 | LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
a28bcc22 | 566 | LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
a28bcc22 | 567 | LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
d4d8de8f | 568 | LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
569 | LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \ |
570 | LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \ | |
571 | LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
6b161b31 JF |
572 | LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \ |
573 | LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \ | |
a28bcc22 JF |
574 | LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
575 | LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
576 | LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \ | |
c34d9c9f JF |
577 | LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
578 | LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \ | |
660e09ad | 579 | LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \ |
e733ee54 JF |
580 | LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \ |
581 | LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL) | |
660e09ad | 582 | |
78c70acd | 583 | enum line_type { |
2e8488b4 JF |
584 | #define LINE(type, line, fg, bg, attr) \ |
585 | LINE_##type | |
586 | LINE_INFO | |
587 | #undef LINE | |
78c70acd JF |
588 | }; |
589 | ||
590 | struct line_info { | |
660e09ad JF |
591 | const char *name; /* Option name. */ |
592 | int namelen; /* Size of option name. */ | |
4685845e | 593 | const char *line; /* The start of line to match. */ |
2e8488b4 JF |
594 | int linelen; /* Size of string to match. */ |
595 | int fg, bg, attr; /* Color and text attributes for the lines. */ | |
78c70acd JF |
596 | }; |
597 | ||
2e8488b4 | 598 | static struct line_info line_info[] = { |
78c70acd | 599 | #define LINE(type, line, fg, bg, attr) \ |
660e09ad | 600 | { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) } |
2e8488b4 JF |
601 | LINE_INFO |
602 | #undef LINE | |
78c70acd JF |
603 | }; |
604 | ||
2e8488b4 JF |
605 | static enum line_type |
606 | get_line_type(char *line) | |
78c70acd JF |
607 | { |
608 | int linelen = strlen(line); | |
a28bcc22 | 609 | enum line_type type; |
78c70acd | 610 | |
a28bcc22 | 611 | for (type = 0; type < ARRAY_SIZE(line_info); type++) |
2e8488b4 | 612 | /* Case insensitive search matches Signed-off-by lines better. */ |
a28bcc22 JF |
613 | if (linelen >= line_info[type].linelen && |
614 | !strncasecmp(line_info[type].line, line, line_info[type].linelen)) | |
615 | return type; | |
78c70acd | 616 | |
2e8488b4 | 617 | return LINE_DEFAULT; |
78c70acd JF |
618 | } |
619 | ||
2e8488b4 | 620 | static inline int |
78c70acd JF |
621 | get_line_attr(enum line_type type) |
622 | { | |
2e8488b4 JF |
623 | assert(type < ARRAY_SIZE(line_info)); |
624 | return COLOR_PAIR(type) | line_info[type].attr; | |
78c70acd JF |
625 | } |
626 | ||
660e09ad JF |
627 | static struct line_info * |
628 | get_line_info(char *name, int namelen) | |
629 | { | |
630 | enum line_type type; | |
660e09ad JF |
631 | |
632 | for (type = 0; type < ARRAY_SIZE(line_info); type++) | |
633 | if (namelen == line_info[type].namelen && | |
201f5a18 | 634 | !string_enum_compare(line_info[type].name, name, namelen)) |
660e09ad JF |
635 | return &line_info[type]; |
636 | ||
637 | return NULL; | |
638 | } | |
639 | ||
78c70acd JF |
640 | static void |
641 | init_colors(void) | |
642 | { | |
82e78006 JF |
643 | int default_bg = COLOR_BLACK; |
644 | int default_fg = COLOR_WHITE; | |
a28bcc22 | 645 | enum line_type type; |
78c70acd JF |
646 | |
647 | start_color(); | |
648 | ||
649 | if (use_default_colors() != ERR) { | |
82e78006 JF |
650 | default_bg = -1; |
651 | default_fg = -1; | |
78c70acd JF |
652 | } |
653 | ||
a28bcc22 JF |
654 | for (type = 0; type < ARRAY_SIZE(line_info); type++) { |
655 | struct line_info *info = &line_info[type]; | |
82e78006 JF |
656 | int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg; |
657 | int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg; | |
78c70acd | 658 | |
a28bcc22 | 659 | init_pair(type, fg, bg); |
78c70acd JF |
660 | } |
661 | } | |
662 | ||
fe7233c3 JF |
663 | struct line { |
664 | enum line_type type; | |
3c571d67 JF |
665 | |
666 | /* State flags */ | |
667 | unsigned int selected:1; | |
668 | ||
fe7233c3 JF |
669 | void *data; /* User data */ |
670 | }; | |
671 | ||
78c70acd | 672 | |
1899507c | 673 | /* |
37157fa0 JF |
674 | * Keys |
675 | */ | |
676 | ||
93a97d86 | 677 | struct keybinding { |
37157fa0 | 678 | int alias; |
93a97d86 | 679 | enum request request; |
04e2b7b2 | 680 | struct keybinding *next; |
37157fa0 JF |
681 | }; |
682 | ||
93a97d86 | 683 | static struct keybinding default_keybindings[] = { |
37157fa0 JF |
684 | /* View switching */ |
685 | { 'm', REQ_VIEW_MAIN }, | |
686 | { 'd', REQ_VIEW_DIFF }, | |
687 | { 'l', REQ_VIEW_LOG }, | |
e733ee54 | 688 | { 't', REQ_VIEW_TREE }, |
0001fc34 | 689 | { 'f', REQ_VIEW_BLOB }, |
37157fa0 JF |
690 | { 'p', REQ_VIEW_PAGER }, |
691 | { 'h', REQ_VIEW_HELP }, | |
37157fa0 JF |
692 | |
693 | /* View manipulation */ | |
694 | { 'q', REQ_VIEW_CLOSE }, | |
695 | { KEY_TAB, REQ_VIEW_NEXT }, | |
696 | { KEY_RETURN, REQ_ENTER }, | |
697 | { KEY_UP, REQ_PREVIOUS }, | |
698 | { KEY_DOWN, REQ_NEXT }, | |
699 | ||
700 | /* Cursor navigation */ | |
701 | { 'k', REQ_MOVE_UP }, | |
702 | { 'j', REQ_MOVE_DOWN }, | |
703 | { KEY_HOME, REQ_MOVE_FIRST_LINE }, | |
704 | { KEY_END, REQ_MOVE_LAST_LINE }, | |
705 | { KEY_NPAGE, REQ_MOVE_PAGE_DOWN }, | |
706 | { ' ', REQ_MOVE_PAGE_DOWN }, | |
707 | { KEY_PPAGE, REQ_MOVE_PAGE_UP }, | |
708 | { 'b', REQ_MOVE_PAGE_UP }, | |
709 | { '-', REQ_MOVE_PAGE_UP }, | |
710 | ||
711 | /* Scrolling */ | |
712 | { KEY_IC, REQ_SCROLL_LINE_UP }, | |
713 | { KEY_DC, REQ_SCROLL_LINE_DOWN }, | |
714 | { 'w', REQ_SCROLL_PAGE_UP }, | |
715 | { 's', REQ_SCROLL_PAGE_DOWN }, | |
716 | ||
4af34daa JF |
717 | /* Searching */ |
718 | { '/', REQ_SEARCH }, | |
719 | { '?', REQ_SEARCH_BACK }, | |
720 | { 'n', REQ_FIND_NEXT }, | |
721 | { 'N', REQ_FIND_PREV }, | |
722 | ||
37157fa0 JF |
723 | /* Misc */ |
724 | { 'Q', REQ_QUIT }, | |
725 | { 'z', REQ_STOP_LOADING }, | |
726 | { 'v', REQ_SHOW_VERSION }, | |
727 | { 'r', REQ_SCREEN_REDRAW }, | |
904e68d8 | 728 | { '.', REQ_TOGGLE_LINENO }, |
73fb51d5 | 729 | { 'g', REQ_TOGGLE_REV_GRAPH }, |
37157fa0 JF |
730 | { ':', REQ_PROMPT }, |
731 | ||
1d754561 | 732 | /* Using the ncurses SIGWINCH handler. */ |
37157fa0 JF |
733 | { KEY_RESIZE, REQ_SCREEN_RESIZE }, |
734 | }; | |
735 | ||
04e2b7b2 JF |
736 | #define KEYMAP_INFO \ |
737 | KEYMAP_(GENERIC), \ | |
738 | KEYMAP_(MAIN), \ | |
739 | KEYMAP_(DIFF), \ | |
740 | KEYMAP_(LOG), \ | |
e733ee54 JF |
741 | KEYMAP_(TREE), \ |
742 | KEYMAP_(BLOB), \ | |
04e2b7b2 JF |
743 | KEYMAP_(PAGER), \ |
744 | KEYMAP_(HELP) \ | |
745 | ||
746 | enum keymap { | |
747 | #define KEYMAP_(name) KEYMAP_##name | |
748 | KEYMAP_INFO | |
749 | #undef KEYMAP_ | |
750 | }; | |
751 | ||
752 | static struct int_map keymap_table[] = { | |
753 | #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name } | |
754 | KEYMAP_INFO | |
755 | #undef KEYMAP_ | |
756 | }; | |
757 | ||
758 | #define set_keymap(map, name) \ | |
759 | set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name)) | |
760 | ||
761 | static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)]; | |
762 | ||
763 | static void | |
764 | add_keybinding(enum keymap keymap, enum request request, int key) | |
765 | { | |
8b534a13 | 766 | struct keybinding *keybinding; |
04e2b7b2 | 767 | |
8b534a13 | 768 | keybinding = calloc(1, sizeof(*keybinding)); |
04e2b7b2 JF |
769 | if (!keybinding) |
770 | die("Failed to allocate keybinding"); | |
771 | ||
772 | keybinding->alias = key; | |
773 | keybinding->request = request; | |
774 | keybinding->next = keybindings[keymap]; | |
775 | keybindings[keymap] = keybinding; | |
776 | } | |
777 | ||
778 | /* Looks for a key binding first in the given map, then in the generic map, and | |
779 | * lastly in the default keybindings. */ | |
37157fa0 | 780 | static enum request |
04e2b7b2 | 781 | get_keybinding(enum keymap keymap, int key) |
37157fa0 | 782 | { |
04e2b7b2 | 783 | struct keybinding *kbd; |
37157fa0 JF |
784 | int i; |
785 | ||
04e2b7b2 JF |
786 | for (kbd = keybindings[keymap]; kbd; kbd = kbd->next) |
787 | if (kbd->alias == key) | |
788 | return kbd->request; | |
789 | ||
790 | for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next) | |
791 | if (kbd->alias == key) | |
792 | return kbd->request; | |
793 | ||
93a97d86 JF |
794 | for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) |
795 | if (default_keybindings[i].alias == key) | |
796 | return default_keybindings[i].request; | |
37157fa0 JF |
797 | |
798 | return (enum request) key; | |
799 | } | |
800 | ||
93a97d86 | 801 | |
37157fa0 JF |
802 | struct key { |
803 | char *name; | |
804 | int value; | |
805 | }; | |
806 | ||
807 | static struct key key_table[] = { | |
808 | { "Enter", KEY_RETURN }, | |
809 | { "Space", ' ' }, | |
810 | { "Backspace", KEY_BACKSPACE }, | |
811 | { "Tab", KEY_TAB }, | |
812 | { "Escape", KEY_ESC }, | |
813 | { "Left", KEY_LEFT }, | |
814 | { "Right", KEY_RIGHT }, | |
815 | { "Up", KEY_UP }, | |
816 | { "Down", KEY_DOWN }, | |
817 | { "Insert", KEY_IC }, | |
818 | { "Delete", KEY_DC }, | |
74f83ee6 | 819 | { "Hash", '#' }, |
37157fa0 JF |
820 | { "Home", KEY_HOME }, |
821 | { "End", KEY_END }, | |
822 | { "PageUp", KEY_PPAGE }, | |
823 | { "PageDown", KEY_NPAGE }, | |
824 | { "F1", KEY_F(1) }, | |
825 | { "F2", KEY_F(2) }, | |
826 | { "F3", KEY_F(3) }, | |
827 | { "F4", KEY_F(4) }, | |
828 | { "F5", KEY_F(5) }, | |
829 | { "F6", KEY_F(6) }, | |
830 | { "F7", KEY_F(7) }, | |
831 | { "F8", KEY_F(8) }, | |
832 | { "F9", KEY_F(9) }, | |
833 | { "F10", KEY_F(10) }, | |
834 | { "F11", KEY_F(11) }, | |
835 | { "F12", KEY_F(12) }, | |
836 | }; | |
837 | ||
04e2b7b2 JF |
838 | static int |
839 | get_key_value(const char *name) | |
840 | { | |
841 | int i; | |
842 | ||
843 | for (i = 0; i < ARRAY_SIZE(key_table); i++) | |
844 | if (!strcasecmp(key_table[i].name, name)) | |
845 | return key_table[i].value; | |
846 | ||
847 | if (strlen(name) == 1 && isprint(*name)) | |
848 | return (int) *name; | |
849 | ||
850 | return ERR; | |
851 | } | |
852 | ||
37157fa0 JF |
853 | static char * |
854 | get_key(enum request request) | |
855 | { | |
856 | static char buf[BUFSIZ]; | |
857 | static char key_char[] = "'X'"; | |
d65ced0d | 858 | size_t pos = 0; |
37157fa0 JF |
859 | char *sep = " "; |
860 | int i; | |
861 | ||
862 | buf[pos] = 0; | |
863 | ||
93a97d86 JF |
864 | for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) { |
865 | struct keybinding *keybinding = &default_keybindings[i]; | |
37157fa0 JF |
866 | char *seq = NULL; |
867 | int key; | |
868 | ||
93a97d86 | 869 | if (keybinding->request != request) |
37157fa0 JF |
870 | continue; |
871 | ||
872 | for (key = 0; key < ARRAY_SIZE(key_table); key++) | |
93a97d86 | 873 | if (key_table[key].value == keybinding->alias) |
37157fa0 JF |
874 | seq = key_table[key].name; |
875 | ||
876 | if (seq == NULL && | |
93a97d86 JF |
877 | keybinding->alias < 127 && |
878 | isprint(keybinding->alias)) { | |
879 | key_char[1] = (char) keybinding->alias; | |
37157fa0 JF |
880 | seq = key_char; |
881 | } | |
882 | ||
883 | if (!seq) | |
884 | seq = "'?'"; | |
885 | ||
886 | if (!string_format_from(buf, &pos, "%s%s", sep, seq)) | |
887 | return "Too many keybindings!"; | |
888 | sep = ", "; | |
889 | } | |
890 | ||
891 | return buf; | |
892 | } | |
893 | ||
894 | ||
895 | /* | |
1899507c JF |
896 | * User config file handling. |
897 | */ | |
898 | ||
5dc795f2 JF |
899 | static struct int_map color_map[] = { |
900 | #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name } | |
901 | COLOR_MAP(DEFAULT), | |
902 | COLOR_MAP(BLACK), | |
903 | COLOR_MAP(BLUE), | |
904 | COLOR_MAP(CYAN), | |
905 | COLOR_MAP(GREEN), | |
906 | COLOR_MAP(MAGENTA), | |
907 | COLOR_MAP(RED), | |
908 | COLOR_MAP(WHITE), | |
909 | COLOR_MAP(YELLOW), | |
910 | }; | |
911 | ||
9256ab05 JF |
912 | #define set_color(color, name) \ |
913 | set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name)) | |
660e09ad | 914 | |
5dc795f2 JF |
915 | static struct int_map attr_map[] = { |
916 | #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name } | |
917 | ATTR_MAP(NORMAL), | |
918 | ATTR_MAP(BLINK), | |
919 | ATTR_MAP(BOLD), | |
920 | ATTR_MAP(DIM), | |
921 | ATTR_MAP(REVERSE), | |
922 | ATTR_MAP(STANDOUT), | |
923 | ATTR_MAP(UNDERLINE), | |
924 | }; | |
925 | ||
9256ab05 JF |
926 | #define set_attribute(attr, name) \ |
927 | set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name)) | |
660e09ad | 928 | |
3c3801c2 JF |
929 | static int config_lineno; |
930 | static bool config_errors; | |
931 | static char *config_msg; | |
932 | ||
5bfd96c7 | 933 | /* Wants: object fgcolor bgcolor [attr] */ |
660e09ad | 934 | static int |
5bfd96c7 | 935 | option_color_command(int argc, char *argv[]) |
660e09ad | 936 | { |
bca8fcaa JF |
937 | struct line_info *info; |
938 | ||
9256ab05 JF |
939 | if (argc != 3 && argc != 4) { |
940 | config_msg = "Wrong number of arguments given to color command"; | |
941 | return ERR; | |
942 | } | |
943 | ||
944 | info = get_line_info(argv[0], strlen(argv[0])); | |
bca8fcaa JF |
945 | if (!info) { |
946 | config_msg = "Unknown color name"; | |
947 | return ERR; | |
948 | } | |
660e09ad | 949 | |
a3653368 JF |
950 | if (set_color(&info->fg, argv[1]) == ERR || |
951 | set_color(&info->bg, argv[2]) == ERR) { | |
bca8fcaa JF |
952 | config_msg = "Unknown color"; |
953 | return ERR; | |
954 | } | |
660e09ad | 955 | |
9256ab05 | 956 | if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) { |
bca8fcaa JF |
957 | config_msg = "Unknown attribute"; |
958 | return ERR; | |
660e09ad JF |
959 | } |
960 | ||
bca8fcaa JF |
961 | return OK; |
962 | } | |
963 | ||
5bfd96c7 JF |
964 | /* Wants: name = value */ |
965 | static int | |
966 | option_set_command(int argc, char *argv[]) | |
967 | { | |
968 | if (argc != 3) { | |
969 | config_msg = "Wrong number of arguments given to set command"; | |
970 | return ERR; | |
971 | } | |
972 | ||
973 | if (strcmp(argv[1], "=")) { | |
974 | config_msg = "No value assigned"; | |
975 | return ERR; | |
976 | } | |
977 | ||
978 | if (!strcmp(argv[0], "show-rev-graph")) { | |
979 | opt_rev_graph = (!strcmp(argv[2], "1") || | |
980 | !strcmp(argv[2], "true") || | |
981 | !strcmp(argv[2], "yes")); | |
982 | return OK; | |
983 | } | |
984 | ||
985 | if (!strcmp(argv[0], "line-number-interval")) { | |
986 | opt_num_interval = atoi(argv[2]); | |
987 | return OK; | |
988 | } | |
989 | ||
990 | if (!strcmp(argv[0], "tab-size")) { | |
991 | opt_tab_size = atoi(argv[2]); | |
992 | return OK; | |
993 | } | |
994 | ||
cb7267ee | 995 | if (!strcmp(argv[0], "commit-encoding")) { |
3cc9a4d4 JF |
996 | char *arg = argv[2]; |
997 | int delimiter = *arg; | |
998 | int i; | |
999 | ||
1000 | switch (delimiter) { | |
1001 | case '"': | |
1002 | case '\'': | |
1003 | for (arg++, i = 0; arg[i]; i++) | |
1004 | if (arg[i] == delimiter) { | |
1005 | arg[i] = 0; | |
1006 | break; | |
1007 | } | |
1008 | default: | |
1009 | string_copy(opt_encoding, arg); | |
1010 | return OK; | |
1011 | } | |
5bfd96c7 JF |
1012 | } |
1013 | ||
a3653368 | 1014 | config_msg = "Unknown variable name"; |
5bfd96c7 JF |
1015 | return ERR; |
1016 | } | |
1017 | ||
04e2b7b2 JF |
1018 | /* Wants: mode request key */ |
1019 | static int | |
1020 | option_bind_command(int argc, char *argv[]) | |
1021 | { | |
1022 | enum request request; | |
1023 | int keymap; | |
1024 | int key; | |
1025 | ||
1026 | if (argc != 3) { | |
1027 | config_msg = "Wrong number of arguments given to bind command"; | |
1028 | return ERR; | |
1029 | } | |
1030 | ||
1031 | if (set_keymap(&keymap, argv[0]) == ERR) { | |
1032 | config_msg = "Unknown key map"; | |
1033 | return ERR; | |
1034 | } | |
1035 | ||
1036 | key = get_key_value(argv[1]); | |
1037 | if (key == ERR) { | |
1038 | config_msg = "Unknown key"; | |
1039 | return ERR; | |
1040 | } | |
1041 | ||
1042 | request = get_request(argv[2]); | |
1043 | if (request == REQ_UNKNOWN) { | |
1044 | config_msg = "Unknown request name"; | |
1045 | return ERR; | |
1046 | } | |
1047 | ||
1048 | add_keybinding(keymap, request, key); | |
1049 | ||
1050 | return OK; | |
1051 | } | |
1052 | ||
bca8fcaa | 1053 | static int |
9256ab05 | 1054 | set_option(char *opt, char *value) |
bca8fcaa | 1055 | { |
9256ab05 JF |
1056 | char *argv[16]; |
1057 | int valuelen; | |
1058 | int argc = 0; | |
1059 | ||
1060 | /* Tokenize */ | |
1061 | while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) { | |
1062 | argv[argc++] = value; | |
1063 | ||
1064 | value += valuelen; | |
1065 | if (!*value) | |
1066 | break; | |
1067 | ||
1068 | *value++ = 0; | |
1069 | while (isspace(*value)) | |
1070 | value++; | |
1071 | } | |
1072 | ||
1073 | if (!strcmp(opt, "color")) | |
5bfd96c7 JF |
1074 | return option_color_command(argc, argv); |
1075 | ||
1076 | if (!strcmp(opt, "set")) | |
1077 | return option_set_command(argc, argv); | |
bca8fcaa | 1078 | |
04e2b7b2 JF |
1079 | if (!strcmp(opt, "bind")) |
1080 | return option_bind_command(argc, argv); | |
1081 | ||
a3653368 | 1082 | config_msg = "Unknown option command"; |
660e09ad JF |
1083 | return ERR; |
1084 | } | |
1085 | ||
1086 | static int | |
3c3801c2 JF |
1087 | read_option(char *opt, int optlen, char *value, int valuelen) |
1088 | { | |
a3653368 JF |
1089 | int status = OK; |
1090 | ||
3c3801c2 JF |
1091 | config_lineno++; |
1092 | config_msg = "Internal error"; | |
1093 | ||
a3653368 JF |
1094 | /* Check for comment markers, since read_properties() will |
1095 | * only ensure opt and value are split at first " \t". */ | |
74f83ee6 | 1096 | optlen = strcspn(opt, "#"); |
a3653368 | 1097 | if (optlen == 0) |
3c3801c2 JF |
1098 | return OK; |
1099 | ||
a3653368 JF |
1100 | if (opt[optlen] != 0) { |
1101 | config_msg = "No option value"; | |
1102 | status = ERR; | |
1103 | ||
1104 | } else { | |
1105 | /* Look for comment endings in the value. */ | |
74f83ee6 | 1106 | int len = strcspn(value, "#"); |
a3653368 JF |
1107 | |
1108 | if (len < valuelen) { | |
1109 | valuelen = len; | |
1110 | value[valuelen] = 0; | |
1111 | } | |
1112 | ||
1113 | status = set_option(opt, value); | |
3c3801c2 JF |
1114 | } |
1115 | ||
a3653368 JF |
1116 | if (status == ERR) { |
1117 | fprintf(stderr, "Error on line %d, near '%.*s': %s\n", | |
3c3801c2 JF |
1118 | config_lineno, optlen, opt, config_msg); |
1119 | config_errors = TRUE; | |
1120 | } | |
1121 | ||
1122 | /* Always keep going if errors are encountered. */ | |
1123 | return OK; | |
1124 | } | |
1125 | ||
1126 | static int | |
660e09ad JF |
1127 | load_options(void) |
1128 | { | |
1129 | char *home = getenv("HOME"); | |
17482b11 | 1130 | char buf[SIZEOF_STR]; |
660e09ad JF |
1131 | FILE *file; |
1132 | ||
3c3801c2 JF |
1133 | config_lineno = 0; |
1134 | config_errors = FALSE; | |
1135 | ||
cc2d1364 | 1136 | if (!home || !string_format(buf, "%s/.tigrc", home)) |
660e09ad JF |
1137 | return ERR; |
1138 | ||
1139 | /* It's ok that the file doesn't exist. */ | |
1140 | file = fopen(buf, "r"); | |
1141 | if (!file) | |
1142 | return OK; | |
1143 | ||
3c3801c2 JF |
1144 | if (read_properties(file, " \t", read_option) == ERR || |
1145 | config_errors == TRUE) | |
1146 | fprintf(stderr, "Errors while loading %s.\n", buf); | |
1147 | ||
1148 | return OK; | |
660e09ad JF |
1149 | } |
1150 | ||
1151 | ||
d839253b | 1152 | /* |
468876c9 | 1153 | * The viewer |
d839253b | 1154 | */ |
c2124ccd JF |
1155 | |
1156 | struct view; | |
fe7233c3 | 1157 | struct view_ops; |
c2124ccd JF |
1158 | |
1159 | /* The display array of active views and the index of the current view. */ | |
1160 | static struct view *display[2]; | |
1161 | static unsigned int current_view; | |
1162 | ||
ab4af23e JF |
1163 | /* Reading from the prompt? */ |
1164 | static bool input_mode = FALSE; | |
1165 | ||
33c4f9ea | 1166 | #define foreach_displayed_view(view, i) \ |
c2124ccd JF |
1167 | for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++) |
1168 | ||
9f41488f | 1169 | #define displayed_views() (display[1] != NULL ? 2 : 1) |
c2124ccd | 1170 | |
d839253b | 1171 | /* Current head and commit ID */ |
e733ee54 | 1172 | static char ref_blob[SIZEOF_REF] = ""; |
c2124ccd JF |
1173 | static char ref_commit[SIZEOF_REF] = "HEAD"; |
1174 | static char ref_head[SIZEOF_REF] = "HEAD"; | |
1175 | ||
b801d8b2 | 1176 | struct view { |
03a93dbb | 1177 | const char *name; /* View name */ |
4685845e TH |
1178 | const char *cmd_fmt; /* Default command line format */ |
1179 | const char *cmd_env; /* Command line set via environment */ | |
e733ee54 | 1180 | const char *id; /* Points to either of ref_{head,commit,blob} */ |
6b161b31 | 1181 | |
fe7233c3 | 1182 | struct view_ops *ops; /* View operations */ |
22f66b0a | 1183 | |
04e2b7b2 JF |
1184 | enum keymap keymap; /* What keymap does this view have */ |
1185 | ||
17482b11 | 1186 | char cmd[SIZEOF_STR]; /* Command buffer */ |
49f2b43f JF |
1187 | char ref[SIZEOF_REF]; /* Hovered commit reference */ |
1188 | char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */ | |
2e8488b4 | 1189 | |
8855ada4 JF |
1190 | int height, width; /* The width and height of the main window */ |
1191 | WINDOW *win; /* The main window */ | |
1192 | WINDOW *title; /* The title window living below the main window */ | |
b801d8b2 JF |
1193 | |
1194 | /* Navigation */ | |
1195 | unsigned long offset; /* Offset of the window top */ | |
1196 | unsigned long lineno; /* Current line number */ | |
1197 | ||
4af34daa JF |
1198 | /* Searching */ |
1199 | char grep[SIZEOF_STR]; /* Search string */ | |
b77b2cb8 | 1200 | regex_t *regex; /* Pre-compiled regex */ |
4af34daa | 1201 | |
f6da0b66 JF |
1202 | /* If non-NULL, points to the view that opened this view. If this view |
1203 | * is closed tig will switch back to the parent view. */ | |
1204 | struct view *parent; | |
1205 | ||
b801d8b2 JF |
1206 | /* Buffering */ |
1207 | unsigned long lines; /* Total number of lines */ | |
fe7233c3 | 1208 | struct line *line; /* Line index */ |
e2c01617 | 1209 | unsigned long line_size;/* Total number of allocated lines */ |
8855ada4 | 1210 | unsigned int digits; /* Number of digits in the lines member. */ |
b801d8b2 JF |
1211 | |
1212 | /* Loading */ | |
1213 | FILE *pipe; | |
2e8488b4 | 1214 | time_t start_time; |
b801d8b2 JF |
1215 | }; |
1216 | ||
fe7233c3 JF |
1217 | struct view_ops { |
1218 | /* What type of content being displayed. Used in the title bar. */ | |
1219 | const char *type; | |
1220 | /* Draw one line; @lineno must be < view->height. */ | |
5dcf8064 | 1221 | bool (*draw)(struct view *view, struct line *line, unsigned int lineno, bool selected); |
fe7233c3 | 1222 | /* Read one line; updates view->line. */ |
701e4f5d | 1223 | bool (*read)(struct view *view, char *data); |
fe7233c3 JF |
1224 | /* Depending on view, change display based on current line. */ |
1225 | bool (*enter)(struct view *view, struct line *line); | |
4af34daa JF |
1226 | /* Search for regex in a line. */ |
1227 | bool (*grep)(struct view *view, struct line *line); | |
d720de4b JF |
1228 | /* Select line */ |
1229 | void (*select)(struct view *view, struct line *line); | |
fe7233c3 JF |
1230 | }; |
1231 | ||
6b161b31 JF |
1232 | static struct view_ops pager_ops; |
1233 | static struct view_ops main_ops; | |
e733ee54 JF |
1234 | static struct view_ops tree_ops; |
1235 | static struct view_ops blob_ops; | |
a28bcc22 | 1236 | |
04e2b7b2 JF |
1237 | #define VIEW_STR(name, cmd, env, ref, ops, map) \ |
1238 | { name, cmd, #env, ref, ops, map} | |
1ba2ae4b | 1239 | |
95d7ddcd | 1240 | #define VIEW_(id, name, ops, ref) \ |
04e2b7b2 | 1241 | VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id) |
1ba2ae4b | 1242 | |
c2124ccd | 1243 | |
b801d8b2 | 1244 | static struct view views[] = { |
95d7ddcd JF |
1245 | VIEW_(MAIN, "main", &main_ops, ref_head), |
1246 | VIEW_(DIFF, "diff", &pager_ops, ref_commit), | |
1247 | VIEW_(LOG, "log", &pager_ops, ref_head), | |
e733ee54 JF |
1248 | VIEW_(TREE, "tree", &tree_ops, ref_commit), |
1249 | VIEW_(BLOB, "blob", &blob_ops, ref_blob), | |
95d7ddcd JF |
1250 | VIEW_(HELP, "help", &pager_ops, "static"), |
1251 | VIEW_(PAGER, "pager", &pager_ops, "static"), | |
b801d8b2 JF |
1252 | }; |
1253 | ||
a28bcc22 JF |
1254 | #define VIEW(req) (&views[(req) - REQ_OFFSET - 1]) |
1255 | ||
699ae55b JF |
1256 | #define foreach_view(view, i) \ |
1257 | for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++) | |
1258 | ||
1259 | #define view_is_displayed(view) \ | |
1260 | (view == display[0] || view == display[1]) | |
4c6fabc2 | 1261 | |
fe7233c3 JF |
1262 | static bool |
1263 | draw_view_line(struct view *view, unsigned int lineno) | |
1264 | { | |
d720de4b | 1265 | struct line *line; |
5dcf8064 | 1266 | bool selected = (view->offset + lineno == view->lineno); |
4887d44e | 1267 | bool draw_ok; |
d720de4b | 1268 | |
699ae55b JF |
1269 | assert(view_is_displayed(view)); |
1270 | ||
fe7233c3 JF |
1271 | if (view->offset + lineno >= view->lines) |
1272 | return FALSE; | |
1273 | ||
d720de4b JF |
1274 | line = &view->line[view->offset + lineno]; |
1275 | ||
3c571d67 JF |
1276 | if (selected) { |
1277 | line->selected = TRUE; | |
d720de4b | 1278 | view->ops->select(view, line); |
3c571d67 JF |
1279 | } else if (line->selected) { |
1280 | line->selected = FALSE; | |
1281 | wmove(view->win, lineno, 0); | |
1282 | wclrtoeol(view->win); | |
1283 | } | |
d720de4b | 1284 | |
4887d44e JF |
1285 | scrollok(view->win, FALSE); |
1286 | draw_ok = view->ops->draw(view, line, lineno, selected); | |
1287 | scrollok(view->win, TRUE); | |
1288 | ||
1289 | return draw_ok; | |
fe7233c3 JF |
1290 | } |
1291 | ||
b801d8b2 | 1292 | static void |
82e78006 | 1293 | redraw_view_from(struct view *view, int lineno) |
b801d8b2 | 1294 | { |
82e78006 | 1295 | assert(0 <= lineno && lineno < view->height); |
b801d8b2 | 1296 | |
82e78006 | 1297 | for (; lineno < view->height; lineno++) { |
fe7233c3 | 1298 | if (!draw_view_line(view, lineno)) |
fd85fef1 | 1299 | break; |
b801d8b2 JF |
1300 | } |
1301 | ||
1302 | redrawwin(view->win); | |
ab4af23e JF |
1303 | if (input_mode) |
1304 | wnoutrefresh(view->win); | |
1305 | else | |
1306 | wrefresh(view->win); | |
b801d8b2 JF |
1307 | } |
1308 | ||
b76c2afc | 1309 | static void |
82e78006 JF |
1310 | redraw_view(struct view *view) |
1311 | { | |
1312 | wclear(view->win); | |
1313 | redraw_view_from(view, 0); | |
1314 | } | |
1315 | ||
c2124ccd | 1316 | |
6b161b31 | 1317 | static void |
81030ec8 JF |
1318 | update_view_title(struct view *view) |
1319 | { | |
3c112a88 | 1320 | char buf[SIZEOF_STR]; |
71d1c7db JF |
1321 | char state[SIZEOF_STR]; |
1322 | size_t bufpos = 0, statelen = 0; | |
81030ec8 | 1323 | |
3c112a88 | 1324 | assert(view_is_displayed(view)); |
81030ec8 | 1325 | |
c19f8017 | 1326 | if (view->lines || view->pipe) { |
6d9c07af | 1327 | unsigned int view_lines = view->offset + view->height; |
c19f8017 | 1328 | unsigned int lines = view->lines |
6d9c07af | 1329 | ? MIN(view_lines, view->lines) * 100 / view->lines |
c19f8017 JF |
1330 | : 0; |
1331 | ||
71d1c7db | 1332 | string_format_from(state, &statelen, "- %s %d of %d (%d%%)", |
3c112a88 JF |
1333 | view->ops->type, |
1334 | view->lineno + 1, | |
1335 | view->lines, | |
1336 | lines); | |
81030ec8 | 1337 | |
5becf244 JF |
1338 | if (view->pipe) { |
1339 | time_t secs = time(NULL) - view->start_time; | |
f97f4012 | 1340 | |
5becf244 JF |
1341 | /* Three git seconds are a long time ... */ |
1342 | if (secs > 2) | |
71d1c7db | 1343 | string_format_from(state, &statelen, " %lds", secs); |
5becf244 | 1344 | } |
f97f4012 JF |
1345 | } |
1346 | ||
71d1c7db JF |
1347 | string_format_from(buf, &bufpos, "[%s]", view->name); |
1348 | if (*view->ref && bufpos < view->width) { | |
1349 | size_t refsize = strlen(view->ref); | |
1350 | size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen; | |
1351 | ||
1352 | if (minsize < view->width) | |
1353 | refsize = view->width - minsize + 7; | |
1354 | string_format_from(buf, &bufpos, " %.*s", refsize, view->ref); | |
1355 | } | |
1356 | ||
1357 | if (statelen && bufpos < view->width) { | |
1358 | string_format_from(buf, &bufpos, " %s", state); | |
1359 | } | |
1360 | ||
3c112a88 JF |
1361 | if (view == display[current_view]) |
1362 | wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS)); | |
1363 | else | |
1364 | wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR)); | |
1365 | ||
3c112a88 | 1366 | mvwaddnstr(view->title, 0, 0, buf, bufpos); |
390a8262 | 1367 | wclrtoeol(view->title); |
976447f8 | 1368 | wmove(view->title, 0, view->width - 1); |
ab4af23e JF |
1369 | |
1370 | if (input_mode) | |
1371 | wnoutrefresh(view->title); | |
1372 | else | |
1373 | wrefresh(view->title); | |
81030ec8 JF |
1374 | } |
1375 | ||
1376 | static void | |
6b161b31 | 1377 | resize_display(void) |
b76c2afc | 1378 | { |
03a93dbb | 1379 | int offset, i; |
6b161b31 JF |
1380 | struct view *base = display[0]; |
1381 | struct view *view = display[1] ? display[1] : display[0]; | |
b76c2afc | 1382 | |
6b161b31 | 1383 | /* Setup window dimensions */ |
b76c2afc | 1384 | |
03a93dbb | 1385 | getmaxyx(stdscr, base->height, base->width); |
b76c2afc | 1386 | |
6b161b31 | 1387 | /* Make room for the status window. */ |
03a93dbb | 1388 | base->height -= 1; |
6b161b31 JF |
1389 | |
1390 | if (view != base) { | |
03a93dbb JF |
1391 | /* Horizontal split. */ |
1392 | view->width = base->width; | |
6b161b31 JF |
1393 | view->height = SCALE_SPLIT_VIEW(base->height); |
1394 | base->height -= view->height; | |
1395 | ||
1396 | /* Make room for the title bar. */ | |
1397 | view->height -= 1; | |
1398 | } | |
1399 | ||
1400 | /* Make room for the title bar. */ | |
1401 | base->height -= 1; | |
1402 | ||
1403 | offset = 0; | |
1404 | ||
33c4f9ea | 1405 | foreach_displayed_view (view, i) { |
b76c2afc | 1406 | if (!view->win) { |
c19f8017 | 1407 | view->win = newwin(view->height, 0, offset, 0); |
6b161b31 JF |
1408 | if (!view->win) |
1409 | die("Failed to create %s view", view->name); | |
1410 | ||
1411 | scrollok(view->win, TRUE); | |
1412 | ||
1413 | view->title = newwin(1, 0, offset + view->height, 0); | |
1414 | if (!view->title) | |
1415 | die("Failed to create title window"); | |
1416 | ||
1417 | } else { | |
c19f8017 | 1418 | wresize(view->win, view->height, view->width); |
6b161b31 JF |
1419 | mvwin(view->win, offset, 0); |
1420 | mvwin(view->title, offset + view->height, 0); | |
a28bcc22 | 1421 | } |
a28bcc22 | 1422 | |
6b161b31 | 1423 | offset += view->height + 1; |
b76c2afc | 1424 | } |
6b161b31 | 1425 | } |
b76c2afc | 1426 | |
6b161b31 | 1427 | static void |
20bb5e18 JF |
1428 | redraw_display(void) |
1429 | { | |
1430 | struct view *view; | |
1431 | int i; | |
1432 | ||
33c4f9ea | 1433 | foreach_displayed_view (view, i) { |
20bb5e18 JF |
1434 | redraw_view(view); |
1435 | update_view_title(view); | |
1436 | } | |
1437 | } | |
1438 | ||
85af6284 | 1439 | static void |
2bee3bde | 1440 | update_display_cursor(struct view *view) |
85af6284 | 1441 | { |
85af6284 JF |
1442 | /* Move the cursor to the right-most column of the cursor line. |
1443 | * | |
1444 | * XXX: This could turn out to be a bit expensive, but it ensures that | |
1445 | * the cursor does not jump around. */ | |
1446 | if (view->lines) { | |
1447 | wmove(view->win, view->lineno - view->offset, view->width - 1); | |
1448 | wrefresh(view->win); | |
1449 | } | |
1450 | } | |
20bb5e18 | 1451 | |
2e8488b4 JF |
1452 | /* |
1453 | * Navigation | |
1454 | */ | |
1455 | ||
4a2909a7 | 1456 | /* Scrolling backend */ |
b801d8b2 | 1457 | static void |
8c317212 | 1458 | do_scroll_view(struct view *view, int lines) |
b801d8b2 | 1459 | { |
a0087dd5 JF |
1460 | bool redraw_current_line = FALSE; |
1461 | ||
fd85fef1 JF |
1462 | /* The rendering expects the new offset. */ |
1463 | view->offset += lines; | |
1464 | ||
1465 | assert(0 <= view->offset && view->offset < view->lines); | |
1466 | assert(lines); | |
b801d8b2 | 1467 | |
a0087dd5 JF |
1468 | /* Move current line into the view. */ |
1469 | if (view->lineno < view->offset) { | |
1470 | view->lineno = view->offset; | |
1471 | redraw_current_line = TRUE; | |
1472 | } else if (view->lineno >= view->offset + view->height) { | |
1473 | view->lineno = view->offset + view->height - 1; | |
1474 | redraw_current_line = TRUE; | |
1475 | } | |
1476 | ||
1477 | assert(view->offset <= view->lineno && view->lineno < view->lines); | |
1478 | ||
82e78006 | 1479 | /* Redraw the whole screen if scrolling is pointless. */ |
4c6fabc2 | 1480 | if (view->height < ABS(lines)) { |
b76c2afc JF |
1481 | redraw_view(view); |
1482 | ||
1483 | } else { | |
22f66b0a | 1484 | int line = lines > 0 ? view->height - lines : 0; |
82e78006 | 1485 | int end = line + ABS(lines); |
fd85fef1 JF |
1486 | |
1487 | wscrl(view->win, lines); | |
1488 | ||
22f66b0a | 1489 | for (; line < end; line++) { |
fe7233c3 | 1490 | if (!draw_view_line(view, line)) |
fd85fef1 JF |
1491 | break; |
1492 | } | |
fd85fef1 | 1493 | |
a0087dd5 JF |
1494 | if (redraw_current_line) |
1495 | draw_view_line(view, view->lineno - view->offset); | |
fd85fef1 JF |
1496 | } |
1497 | ||
fd85fef1 JF |
1498 | redrawwin(view->win); |
1499 | wrefresh(view->win); | |
9d3f5834 | 1500 | report(""); |
fd85fef1 | 1501 | } |
78c70acd | 1502 | |
4a2909a7 | 1503 | /* Scroll frontend */ |
fd85fef1 | 1504 | static void |
6b161b31 | 1505 | scroll_view(struct view *view, enum request request) |
fd85fef1 JF |
1506 | { |
1507 | int lines = 1; | |
b801d8b2 | 1508 | |
8c317212 JF |
1509 | assert(view_is_displayed(view)); |
1510 | ||
b801d8b2 | 1511 | switch (request) { |
4a2909a7 | 1512 | case REQ_SCROLL_PAGE_DOWN: |
fd85fef1 | 1513 | lines = view->height; |
4a2909a7 | 1514 | case REQ_SCROLL_LINE_DOWN: |
b801d8b2 | 1515 | if (view->offset + lines > view->lines) |
bde3653a | 1516 | lines = view->lines - view->offset; |
b801d8b2 | 1517 | |
fd85fef1 | 1518 | if (lines == 0 || view->offset + view->height >= view->lines) { |
eb98559e | 1519 | report("Cannot scroll beyond the last line"); |
b801d8b2 JF |
1520 | return; |
1521 | } | |
1522 | break; | |
1523 | ||
4a2909a7 | 1524 | case REQ_SCROLL_PAGE_UP: |
fd85fef1 | 1525 | lines = view->height; |
4a2909a7 | 1526 | case REQ_SCROLL_LINE_UP: |
b801d8b2 JF |
1527 | if (lines > view->offset) |
1528 | lines = view->offset; | |
1529 | ||
1530 | if (lines == 0) { | |
eb98559e | 1531 | report("Cannot scroll beyond the first line"); |
b801d8b2 JF |
1532 | return; |
1533 | } | |
1534 | ||
fd85fef1 | 1535 | lines = -lines; |
b801d8b2 | 1536 | break; |
03a93dbb | 1537 | |
6b161b31 JF |
1538 | default: |
1539 | die("request %d not handled in switch", request); | |
b801d8b2 JF |
1540 | } |
1541 | ||
8c317212 | 1542 | do_scroll_view(view, lines); |
fd85fef1 | 1543 | } |
b801d8b2 | 1544 | |
4a2909a7 | 1545 | /* Cursor moving */ |
fd85fef1 | 1546 | static void |
8522ecc7 | 1547 | move_view(struct view *view, enum request request) |
fd85fef1 | 1548 | { |
dfaa6c81 | 1549 | int scroll_steps = 0; |
fd85fef1 | 1550 | int steps; |
b801d8b2 | 1551 | |
fd85fef1 | 1552 | switch (request) { |
4a2909a7 | 1553 | case REQ_MOVE_FIRST_LINE: |
78c70acd JF |
1554 | steps = -view->lineno; |
1555 | break; | |
1556 | ||
4a2909a7 | 1557 | case REQ_MOVE_LAST_LINE: |
78c70acd JF |
1558 | steps = view->lines - view->lineno - 1; |
1559 | break; | |
1560 | ||
4a2909a7 | 1561 | case REQ_MOVE_PAGE_UP: |
78c70acd JF |
1562 | steps = view->height > view->lineno |
1563 | ? -view->lineno : -view->height; | |
1564 | break; | |
1565 | ||
4a2909a7 | 1566 | case REQ_MOVE_PAGE_DOWN: |
78c70acd JF |
1567 | steps = view->lineno + view->height >= view->lines |
1568 | ? view->lines - view->lineno - 1 : view->height; | |
1569 | break; | |
1570 | ||
4a2909a7 | 1571 | case REQ_MOVE_UP: |
fd85fef1 JF |
1572 | steps = -1; |
1573 | break; | |
b801d8b2 | 1574 | |
4a2909a7 | 1575 | case REQ_MOVE_DOWN: |
fd85fef1 JF |
1576 | steps = 1; |
1577 | break; | |
6b161b31 JF |
1578 | |
1579 | default: | |
1580 | die("request %d not handled in switch", request); | |
78c70acd | 1581 | } |
b801d8b2 | 1582 | |
4c6fabc2 | 1583 | if (steps <= 0 && view->lineno == 0) { |
eb98559e | 1584 | report("Cannot move beyond the first line"); |
78c70acd | 1585 | return; |
b801d8b2 | 1586 | |
6908bdbd | 1587 | } else if (steps >= 0 && view->lineno + 1 >= view->lines) { |
eb98559e | 1588 | report("Cannot move beyond the last line"); |
78c70acd | 1589 | return; |
fd85fef1 JF |
1590 | } |
1591 | ||
4c6fabc2 | 1592 | /* Move the current line */ |
fd85fef1 | 1593 | view->lineno += steps; |
4c6fabc2 JF |
1594 | assert(0 <= view->lineno && view->lineno < view->lines); |
1595 | ||
4c6fabc2 | 1596 | /* Check whether the view needs to be scrolled */ |
fd85fef1 JF |
1597 | if (view->lineno < view->offset || |
1598 | view->lineno >= view->offset + view->height) { | |
dfaa6c81 | 1599 | scroll_steps = steps; |
fd85fef1 | 1600 | if (steps < 0 && -steps > view->offset) { |
dfaa6c81 | 1601 | scroll_steps = -view->offset; |
b76c2afc JF |
1602 | |
1603 | } else if (steps > 0) { | |
1604 | if (view->lineno == view->lines - 1 && | |
1605 | view->lines > view->height) { | |
dfaa6c81 JF |
1606 | scroll_steps = view->lines - view->offset - 1; |
1607 | if (scroll_steps >= view->height) | |
1608 | scroll_steps -= view->height - 1; | |
b76c2afc | 1609 | } |
b801d8b2 | 1610 | } |
8522ecc7 JF |
1611 | } |
1612 | ||
1613 | if (!view_is_displayed(view)) { | |
1614 | view->offset += steps; | |
1615 | view->ops->select(view, &view->line[view->lineno]); | |
1616 | return; | |
1617 | } | |
1618 | ||
1619 | /* Repaint the old "current" line if we be scrolling */ | |
1620 | if (ABS(steps) < view->height) | |
1621 | draw_view_line(view, view->lineno - steps - view->offset); | |
1622 | ||
dfaa6c81 JF |
1623 | if (scroll_steps) { |
1624 | do_scroll_view(view, scroll_steps); | |
fd85fef1 | 1625 | return; |
b801d8b2 JF |
1626 | } |
1627 | ||
4c6fabc2 | 1628 | /* Draw the current line */ |
fe7233c3 | 1629 | draw_view_line(view, view->lineno - view->offset); |
fd85fef1 | 1630 | |
b801d8b2 JF |
1631 | redrawwin(view->win); |
1632 | wrefresh(view->win); | |
9d3f5834 | 1633 | report(""); |
b801d8b2 JF |
1634 | } |
1635 | ||
b801d8b2 | 1636 | |
2e8488b4 | 1637 | /* |
4af34daa JF |
1638 | * Searching |
1639 | */ | |
1640 | ||
c02d8fce | 1641 | static void search_view(struct view *view, enum request request); |
4af34daa JF |
1642 | |
1643 | static bool | |
1644 | find_next_line(struct view *view, unsigned long lineno, struct line *line) | |
1645 | { | |
699ae55b JF |
1646 | assert(view_is_displayed(view)); |
1647 | ||
4af34daa JF |
1648 | if (!view->ops->grep(view, line)) |
1649 | return FALSE; | |
1650 | ||
1651 | if (lineno - view->offset >= view->height) { | |
1652 | view->offset = lineno; | |
1653 | view->lineno = lineno; | |
1654 | redraw_view(view); | |
1655 | ||
1656 | } else { | |
1657 | unsigned long old_lineno = view->lineno - view->offset; | |
1658 | ||
1659 | view->lineno = lineno; | |
4af34daa JF |
1660 | draw_view_line(view, old_lineno); |
1661 | ||
1662 | draw_view_line(view, view->lineno - view->offset); | |
1663 | redrawwin(view->win); | |
1664 | wrefresh(view->win); | |
1665 | } | |
1666 | ||
1667 | report("Line %ld matches '%s'", lineno + 1, view->grep); | |
1668 | return TRUE; | |
1669 | } | |
1670 | ||
1671 | static void | |
1672 | find_next(struct view *view, enum request request) | |
1673 | { | |
1674 | unsigned long lineno = view->lineno; | |
1675 | int direction; | |
1676 | ||
1677 | if (!*view->grep) { | |
1678 | if (!*opt_search) | |
1679 | report("No previous search"); | |
1680 | else | |
c02d8fce | 1681 | search_view(view, request); |
4af34daa JF |
1682 | return; |
1683 | } | |
1684 | ||
1685 | switch (request) { | |
1686 | case REQ_SEARCH: | |
1687 | case REQ_FIND_NEXT: | |
1688 | direction = 1; | |
1689 | break; | |
1690 | ||
1691 | case REQ_SEARCH_BACK: | |
1692 | case REQ_FIND_PREV: | |
1693 | direction = -1; | |
1694 | break; | |
1695 | ||
1696 | default: | |
1697 | return; | |
1698 | } | |
1699 | ||
1700 | if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV) | |
1701 | lineno += direction; | |
1702 | ||
1703 | /* Note, lineno is unsigned long so will wrap around in which case it | |
1704 | * will become bigger than view->lines. */ | |
1705 | for (; lineno < view->lines; lineno += direction) { | |
1706 | struct line *line = &view->line[lineno]; | |
1707 | ||
1708 | if (find_next_line(view, lineno, line)) | |
1709 | return; | |
1710 | } | |
1711 | ||
1712 | report("No match found for '%s'", view->grep); | |
1713 | } | |
1714 | ||
1715 | static void | |
c02d8fce | 1716 | search_view(struct view *view, enum request request) |
4af34daa JF |
1717 | { |
1718 | int regex_err; | |
1719 | ||
b77b2cb8 JF |
1720 | if (view->regex) { |
1721 | regfree(view->regex); | |
4af34daa | 1722 | *view->grep = 0; |
b77b2cb8 JF |
1723 | } else { |
1724 | view->regex = calloc(1, sizeof(*view->regex)); | |
1725 | if (!view->regex) | |
1726 | return; | |
4af34daa JF |
1727 | } |
1728 | ||
c02d8fce | 1729 | regex_err = regcomp(view->regex, opt_search, REG_EXTENDED); |
4af34daa JF |
1730 | if (regex_err != 0) { |
1731 | char buf[SIZEOF_STR] = "unknown error"; | |
1732 | ||
b77b2cb8 | 1733 | regerror(regex_err, view->regex, buf, sizeof(buf)); |
e9cacd58 | 1734 | report("Search failed: %s", buf); |
4af34daa JF |
1735 | return; |
1736 | } | |
1737 | ||
c02d8fce | 1738 | string_copy(view->grep, opt_search); |
4af34daa JF |
1739 | |
1740 | find_next(view, request); | |
1741 | } | |
1742 | ||
1743 | /* | |
2e8488b4 JF |
1744 | * Incremental updating |
1745 | */ | |
b801d8b2 | 1746 | |
199d1288 JF |
1747 | static void |
1748 | end_update(struct view *view) | |
1749 | { | |
1750 | if (!view->pipe) | |
1751 | return; | |
1752 | set_nonblocking_input(FALSE); | |
1753 | if (view->pipe == stdin) | |
1754 | fclose(view->pipe); | |
1755 | else | |
1756 | pclose(view->pipe); | |
1757 | view->pipe = NULL; | |
1758 | } | |
1759 | ||
03a93dbb | 1760 | static bool |
b801d8b2 JF |
1761 | begin_update(struct view *view) |
1762 | { | |
4685845e | 1763 | const char *id = view->id; |
fd85fef1 | 1764 | |
199d1288 JF |
1765 | if (view->pipe) |
1766 | end_update(view); | |
1767 | ||
03a93dbb JF |
1768 | if (opt_cmd[0]) { |
1769 | string_copy(view->cmd, opt_cmd); | |
1770 | opt_cmd[0] = 0; | |
8855ada4 JF |
1771 | /* When running random commands, the view ref could have become |
1772 | * invalid so clear it. */ | |
1773 | view->ref[0] = 0; | |
e733ee54 JF |
1774 | |
1775 | } else if (view == VIEW(REQ_VIEW_TREE)) { | |
1776 | const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt; | |
1777 | ||
1778 | if (strcmp(view->vid, view->id)) | |
1779 | opt_path[0] = 0; | |
1780 | ||
4ea4ce91 | 1781 | if (!string_format(view->cmd, format, id, opt_path)) |
e733ee54 JF |
1782 | return FALSE; |
1783 | ||
03a93dbb | 1784 | } else { |
4685845e | 1785 | const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt; |
1ba2ae4b | 1786 | |
cc2d1364 | 1787 | if (!string_format(view->cmd, format, id, id, id, id, id)) |
03a93dbb JF |
1788 | return FALSE; |
1789 | } | |
b801d8b2 | 1790 | |
6908bdbd JF |
1791 | /* Special case for the pager view. */ |
1792 | if (opt_pipe) { | |
1793 | view->pipe = opt_pipe; | |
1794 | opt_pipe = NULL; | |
1795 | } else { | |
1796 | view->pipe = popen(view->cmd, "r"); | |
1797 | } | |
1798 | ||
2e8488b4 JF |
1799 | if (!view->pipe) |
1800 | return FALSE; | |
b801d8b2 | 1801 | |
6b161b31 | 1802 | set_nonblocking_input(TRUE); |
b801d8b2 JF |
1803 | |
1804 | view->offset = 0; | |
1805 | view->lines = 0; | |
1806 | view->lineno = 0; | |
49f2b43f | 1807 | string_copy(view->vid, id); |
b801d8b2 | 1808 | |
2e8488b4 JF |
1809 | if (view->line) { |
1810 | int i; | |
1811 | ||
1812 | for (i = 0; i < view->lines; i++) | |
fe7233c3 JF |
1813 | if (view->line[i].data) |
1814 | free(view->line[i].data); | |
2e8488b4 JF |
1815 | |
1816 | free(view->line); | |
1817 | view->line = NULL; | |
1818 | } | |
1819 | ||
1820 | view->start_time = time(NULL); | |
1821 | ||
b801d8b2 JF |
1822 | return TRUE; |
1823 | } | |
1824 | ||
e2c01617 JF |
1825 | static struct line * |
1826 | realloc_lines(struct view *view, size_t line_size) | |
1827 | { | |
1828 | struct line *tmp = realloc(view->line, sizeof(*view->line) * line_size); | |
1829 | ||
1830 | if (!tmp) | |
1831 | return NULL; | |
1832 | ||
1833 | view->line = tmp; | |
1834 | view->line_size = line_size; | |
1835 | return view->line; | |
1836 | } | |
1837 | ||
03a93dbb | 1838 | static bool |
b801d8b2 JF |
1839 | update_view(struct view *view) |
1840 | { | |
6b68fd24 JF |
1841 | char in_buffer[BUFSIZ]; |
1842 | char out_buffer[BUFSIZ * 2]; | |
b801d8b2 | 1843 | char *line; |
82e78006 JF |
1844 | /* The number of lines to read. If too low it will cause too much |
1845 | * redrawing (and possible flickering), if too high responsiveness | |
1846 | * will suffer. */ | |
8855ada4 | 1847 | unsigned long lines = view->height; |
82e78006 | 1848 | int redraw_from = -1; |
b801d8b2 JF |
1849 | |
1850 | if (!view->pipe) | |
1851 | return TRUE; | |
1852 | ||
82e78006 JF |
1853 | /* Only redraw if lines are visible. */ |
1854 | if (view->offset + view->height >= view->lines) | |
1855 | redraw_from = view->lines - view->offset; | |
b801d8b2 | 1856 | |
699ae55b | 1857 | /* FIXME: This is probably not perfect for backgrounded views. */ |
e2c01617 | 1858 | if (!realloc_lines(view, view->lines + lines)) |
b801d8b2 JF |
1859 | goto alloc_error; |
1860 | ||
6b68fd24 JF |
1861 | while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) { |
1862 | size_t linelen = strlen(line); | |
b801d8b2 | 1863 | |
b801d8b2 JF |
1864 | if (linelen) |
1865 | line[linelen - 1] = 0; | |
1866 | ||
6b68fd24 JF |
1867 | if (opt_iconv != ICONV_NONE) { |
1868 | char *inbuf = line; | |
1869 | size_t inlen = linelen; | |
1870 | ||
1871 | char *outbuf = out_buffer; | |
1872 | size_t outlen = sizeof(out_buffer); | |
1873 | ||
1874 | size_t ret; | |
1875 | ||
7361622d | 1876 | ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen); |
6b68fd24 JF |
1877 | if (ret != (size_t) -1) { |
1878 | line = out_buffer; | |
1879 | linelen = strlen(out_buffer); | |
1880 | } | |
1881 | } | |
1882 | ||
701e4f5d | 1883 | if (!view->ops->read(view, line)) |
b801d8b2 | 1884 | goto alloc_error; |
fd85fef1 JF |
1885 | |
1886 | if (lines-- == 1) | |
1887 | break; | |
b801d8b2 JF |
1888 | } |
1889 | ||
8855ada4 JF |
1890 | { |
1891 | int digits; | |
1892 | ||
1893 | lines = view->lines; | |
1894 | for (digits = 0; lines; digits++) | |
1895 | lines /= 10; | |
1896 | ||
1897 | /* Keep the displayed view in sync with line number scaling. */ | |
1898 | if (digits != view->digits) { | |
1899 | view->digits = digits; | |
1900 | redraw_from = 0; | |
1901 | } | |
1902 | } | |
1903 | ||
699ae55b JF |
1904 | if (!view_is_displayed(view)) |
1905 | goto check_pipe; | |
1906 | ||
e733ee54 JF |
1907 | if (view == VIEW(REQ_VIEW_TREE)) { |
1908 | /* Clear the view and redraw everything since the tree sorting | |
1909 | * might have rearranged things. */ | |
1910 | redraw_view(view); | |
1911 | ||
1912 | } else if (redraw_from >= 0) { | |
82e78006 | 1913 | /* If this is an incremental update, redraw the previous line |
a28bcc22 JF |
1914 | * since for commits some members could have changed when |
1915 | * loading the main view. */ | |
82e78006 JF |
1916 | if (redraw_from > 0) |
1917 | redraw_from--; | |
1918 | ||
1919 | /* Incrementally draw avoids flickering. */ | |
1920 | redraw_view_from(view, redraw_from); | |
4c6fabc2 | 1921 | } |
b801d8b2 | 1922 | |
eb98559e JF |
1923 | /* Update the title _after_ the redraw so that if the redraw picks up a |
1924 | * commit reference in view->ref it'll be available here. */ | |
1925 | update_view_title(view); | |
1926 | ||
699ae55b | 1927 | check_pipe: |
b801d8b2 | 1928 | if (ferror(view->pipe)) { |
03a93dbb | 1929 | report("Failed to read: %s", strerror(errno)); |
b801d8b2 JF |
1930 | goto end; |
1931 | ||
1932 | } else if (feof(view->pipe)) { | |
f97f4012 | 1933 | report(""); |
b801d8b2 JF |
1934 | goto end; |
1935 | } | |
1936 | ||
1937 | return TRUE; | |
1938 | ||
1939 | alloc_error: | |
2e8488b4 | 1940 | report("Allocation failure"); |
b801d8b2 JF |
1941 | |
1942 | end: | |
1943 | end_update(view); | |
1944 | return FALSE; | |
1945 | } | |
1946 | ||
79d445ca | 1947 | |
e10154d5 JF |
1948 | /* |
1949 | * View opening | |
1950 | */ | |
1951 | ||
79d445ca JF |
1952 | static void open_help_view(struct view *view) |
1953 | { | |
1954 | char buf[BUFSIZ]; | |
1955 | int lines = ARRAY_SIZE(req_info) + 2; | |
1956 | int i; | |
1957 | ||
1958 | if (view->lines > 0) | |
1959 | return; | |
1960 | ||
1961 | for (i = 0; i < ARRAY_SIZE(req_info); i++) | |
1962 | if (!req_info[i].request) | |
1963 | lines++; | |
1964 | ||
1965 | view->line = calloc(lines, sizeof(*view->line)); | |
1966 | if (!view->line) { | |
1967 | report("Allocation failure"); | |
1968 | return; | |
1969 | } | |
1970 | ||
1971 | view->ops->read(view, "Quick reference for tig keybindings:"); | |
1972 | ||
1973 | for (i = 0; i < ARRAY_SIZE(req_info); i++) { | |
1974 | char *key; | |
1975 | ||
1976 | if (!req_info[i].request) { | |
1977 | view->ops->read(view, ""); | |
1978 | view->ops->read(view, req_info[i].help); | |
1979 | continue; | |
1980 | } | |
1981 | ||
1982 | key = get_key(req_info[i].request); | |
1983 | if (!string_format(buf, "%-25s %s", key, req_info[i].help)) | |
1984 | continue; | |
1985 | ||
1986 | view->ops->read(view, buf); | |
1987 | } | |
1988 | } | |
1989 | ||
49f2b43f JF |
1990 | enum open_flags { |
1991 | OPEN_DEFAULT = 0, /* Use default view switching. */ | |
1992 | OPEN_SPLIT = 1, /* Split current view. */ | |
1993 | OPEN_BACKGROUNDED = 2, /* Backgrounded. */ | |
1994 | OPEN_RELOAD = 4, /* Reload view even if it is the current. */ | |
1995 | }; | |
1996 | ||
6b161b31 | 1997 | static void |
49f2b43f | 1998 | open_view(struct view *prev, enum request request, enum open_flags flags) |
b801d8b2 | 1999 | { |
49f2b43f JF |
2000 | bool backgrounded = !!(flags & OPEN_BACKGROUNDED); |
2001 | bool split = !!(flags & OPEN_SPLIT); | |
2002 | bool reload = !!(flags & OPEN_RELOAD); | |
a28bcc22 | 2003 | struct view *view = VIEW(request); |
9f41488f | 2004 | int nviews = displayed_views(); |
6e950a52 | 2005 | struct view *base_view = display[0]; |
b801d8b2 | 2006 | |
49f2b43f | 2007 | if (view == prev && nviews == 1 && !reload) { |
6b161b31 JF |
2008 | report("Already in %s view", view->name); |
2009 | return; | |
2010 | } | |
b801d8b2 | 2011 | |
2509b112 | 2012 | if (view == VIEW(REQ_VIEW_HELP)) { |
79d445ca | 2013 | open_help_view(view); |
2509b112 JF |
2014 | |
2015 | } else if ((reload || strcmp(view->vid, view->id)) && | |
2016 | !begin_update(view)) { | |
6b161b31 JF |
2017 | report("Failed to load %s view", view->name); |
2018 | return; | |
2019 | } | |
a28bcc22 | 2020 | |
6b161b31 | 2021 | if (split) { |
8d741c06 | 2022 | display[1] = view; |
6b161b31 | 2023 | if (!backgrounded) |
8d741c06 | 2024 | current_view = 1; |
6b161b31 JF |
2025 | } else { |
2026 | /* Maximize the current view. */ | |
2027 | memset(display, 0, sizeof(display)); | |
2028 | current_view = 0; | |
2029 | display[current_view] = view; | |
a28bcc22 | 2030 | } |
b801d8b2 | 2031 | |
6e950a52 JF |
2032 | /* Resize the view when switching between split- and full-screen, |
2033 | * or when switching between two different full-screen views. */ | |
2034 | if (nviews != displayed_views() || | |
2035 | (nviews == 1 && base_view != display[0])) | |
a006db63 | 2036 | resize_display(); |
b801d8b2 | 2037 | |
a8891802 | 2038 | if (split && prev->lineno - prev->offset >= prev->height) { |
03a93dbb | 2039 | /* Take the title line into account. */ |
eb98559e | 2040 | int lines = prev->lineno - prev->offset - prev->height + 1; |
03a93dbb JF |
2041 | |
2042 | /* Scroll the view that was split if the current line is | |
2043 | * outside the new limited view. */ | |
8c317212 | 2044 | do_scroll_view(prev, lines); |
03a93dbb JF |
2045 | } |
2046 | ||
6b161b31 | 2047 | if (prev && view != prev) { |
9b995f0c | 2048 | if (split && !backgrounded) { |
f0b3ab80 JF |
2049 | /* "Blur" the previous view. */ |
2050 | update_view_title(prev); | |
9f396969 | 2051 | } |
f0b3ab80 | 2052 | |
f6da0b66 | 2053 | view->parent = prev; |
b801d8b2 JF |
2054 | } |
2055 | ||
9f396969 | 2056 | if (view->pipe && view->lines == 0) { |
03a93dbb JF |
2057 | /* Clear the old view and let the incremental updating refill |
2058 | * the screen. */ | |
2059 | wclear(view->win); | |
f97f4012 | 2060 | report(""); |
03a93dbb JF |
2061 | } else { |
2062 | redraw_view(view); | |
24b5b3e0 | 2063 | report(""); |
03a93dbb | 2064 | } |
6706b2ba JF |
2065 | |
2066 | /* If the view is backgrounded the above calls to report() | |
2067 | * won't redraw the view title. */ | |
2068 | if (backgrounded) | |
2069 | update_view_title(view); | |
b801d8b2 JF |
2070 | } |
2071 | ||
2072 | ||
6b161b31 JF |
2073 | /* |
2074 | * User request switch noodle | |
2075 | */ | |
2076 | ||
b801d8b2 | 2077 | static int |
6b161b31 | 2078 | view_driver(struct view *view, enum request request) |
b801d8b2 | 2079 | { |
b801d8b2 JF |
2080 | int i; |
2081 | ||
2082 | switch (request) { | |
4a2909a7 JF |
2083 | case REQ_MOVE_UP: |
2084 | case REQ_MOVE_DOWN: | |
2085 | case REQ_MOVE_PAGE_UP: | |
2086 | case REQ_MOVE_PAGE_DOWN: | |
2087 | case REQ_MOVE_FIRST_LINE: | |
2088 | case REQ_MOVE_LAST_LINE: | |
8522ecc7 | 2089 | move_view(view, request); |
fd85fef1 JF |
2090 | break; |
2091 | ||
4a2909a7 JF |
2092 | case REQ_SCROLL_LINE_DOWN: |
2093 | case REQ_SCROLL_LINE_UP: | |
2094 | case REQ_SCROLL_PAGE_DOWN: | |
2095 | case REQ_SCROLL_PAGE_UP: | |
a28bcc22 | 2096 | scroll_view(view, request); |
b801d8b2 JF |
2097 | break; |
2098 | ||
e733ee54 JF |
2099 | case REQ_VIEW_BLOB: |
2100 | if (!ref_blob[0]) { | |
2101 | report("No file chosen, press 't' to open tree view"); | |
2102 | break; | |
2103 | } | |
2104 | /* Fall-through */ | |
4a2909a7 | 2105 | case REQ_VIEW_MAIN: |
4a2909a7 | 2106 | case REQ_VIEW_DIFF: |
2e8488b4 | 2107 | case REQ_VIEW_LOG: |
e733ee54 | 2108 | case REQ_VIEW_TREE: |
2e8488b4 | 2109 | case REQ_VIEW_HELP: |
6908bdbd | 2110 | case REQ_VIEW_PAGER: |
49f2b43f | 2111 | open_view(view, request, OPEN_DEFAULT); |
b801d8b2 JF |
2112 | break; |
2113 | ||
b3a54cba JF |
2114 | case REQ_NEXT: |
2115 | case REQ_PREVIOUS: | |
2116 | request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP; | |
2117 | ||
e733ee54 JF |
2118 | if ((view == VIEW(REQ_VIEW_DIFF) && |
2119 | view->parent == VIEW(REQ_VIEW_MAIN)) || | |
2120 | (view == VIEW(REQ_VIEW_BLOB) && | |
2121 | view->parent == VIEW(REQ_VIEW_TREE))) { | |
b3a54cba | 2122 | view = view->parent; |
8522ecc7 JF |
2123 | move_view(view, request); |
2124 | if (view_is_displayed(view)) | |
f0b3ab80 | 2125 | update_view_title(view); |
b3a54cba | 2126 | } else { |
8522ecc7 | 2127 | move_view(view, request); |
b3a54cba JF |
2128 | break; |
2129 | } | |
6706b2ba JF |
2130 | /* Fall-through */ |
2131 | ||
6b161b31 | 2132 | case REQ_ENTER: |
6908bdbd JF |
2133 | if (!view->lines) { |
2134 | report("Nothing to enter"); | |
2135 | break; | |
2136 | } | |
fe7233c3 | 2137 | return view->ops->enter(view, &view->line[view->lineno]); |
6b161b31 | 2138 | |
03a93dbb JF |
2139 | case REQ_VIEW_NEXT: |
2140 | { | |
9f41488f | 2141 | int nviews = displayed_views(); |
03a93dbb JF |
2142 | int next_view = (current_view + 1) % nviews; |
2143 | ||
2144 | if (next_view == current_view) { | |
2145 | report("Only one view is displayed"); | |
2146 | break; | |
2147 | } | |
2148 | ||
2149 | current_view = next_view; | |
2150 | /* Blur out the title of the previous view. */ | |
2151 | update_view_title(view); | |
6734f6b9 | 2152 | report(""); |
03a93dbb JF |
2153 | break; |
2154 | } | |
24b5b3e0 | 2155 | case REQ_TOGGLE_LINENO: |
b76c2afc | 2156 | opt_line_number = !opt_line_number; |
20bb5e18 | 2157 | redraw_display(); |
b801d8b2 JF |
2158 | break; |
2159 | ||
54efb62b JF |
2160 | case REQ_TOGGLE_REV_GRAPH: |
2161 | opt_rev_graph = !opt_rev_graph; | |
2162 | redraw_display(); | |
2163 | break; | |
2164 | ||
03a93dbb | 2165 | case REQ_PROMPT: |
8855ada4 | 2166 | /* Always reload^Wrerun commands from the prompt. */ |
49f2b43f | 2167 | open_view(view, opt_request, OPEN_RELOAD); |
03a93dbb JF |
2168 | break; |
2169 | ||
4af34daa JF |
2170 | case REQ_SEARCH: |
2171 | case REQ_SEARCH_BACK: | |
c02d8fce | 2172 | search_view(view, request); |
4af34daa JF |
2173 | break; |
2174 | ||
2175 | case REQ_FIND_NEXT: | |
2176 | case REQ_FIND_PREV: | |
2177 | find_next(view, request); | |
2178 | break; | |
2179 | ||
4a2909a7 | 2180 | case REQ_STOP_LOADING: |
59a45d3a JF |
2181 | for (i = 0; i < ARRAY_SIZE(views); i++) { |
2182 | view = &views[i]; | |
2e8488b4 | 2183 | if (view->pipe) |
6a7bb912 | 2184 | report("Stopped loading the %s view", view->name), |
03a93dbb JF |
2185 | end_update(view); |
2186 | } | |
b801d8b2 JF |
2187 | break; |
2188 | ||
4a2909a7 | 2189 | case REQ_SHOW_VERSION: |
6cb291b7 | 2190 | report("%s (built %s)", VERSION, __DATE__); |
b801d8b2 JF |
2191 | return TRUE; |
2192 | ||
fac7db6c JF |
2193 | case REQ_SCREEN_RESIZE: |
2194 | resize_display(); | |
2195 | /* Fall-through */ | |
4a2909a7 | 2196 | case REQ_SCREEN_REDRAW: |
20bb5e18 | 2197 | redraw_display(); |
4a2909a7 JF |
2198 | break; |
2199 | ||
1d754561 | 2200 | case REQ_NONE: |
b801d8b2 JF |
2201 | doupdate(); |
2202 | return TRUE; | |
2203 | ||
4f9b667a | 2204 | case REQ_VIEW_CLOSE: |
2fcf5401 JF |
2205 | /* XXX: Mark closed views by letting view->parent point to the |
2206 | * view itself. Parents to closed view should never be | |
2207 | * followed. */ | |
2208 | if (view->parent && | |
2209 | view->parent->parent != view->parent) { | |
4f9b667a JF |
2210 | memset(display, 0, sizeof(display)); |
2211 | current_view = 0; | |
f6da0b66 | 2212 | display[current_view] = view->parent; |
2fcf5401 | 2213 | view->parent = view; |
4f9b667a JF |
2214 | resize_display(); |
2215 | redraw_display(); | |
2216 | break; | |
2217 | } | |
2218 | /* Fall-through */ | |
b801d8b2 JF |
2219 | case REQ_QUIT: |
2220 | return FALSE; | |
2221 | ||
2222 | default: | |
2e8488b4 | 2223 | /* An unknown key will show most commonly used commands. */ |
468876c9 | 2224 | report("Unknown key, press 'h' for help"); |
b801d8b2 JF |
2225 | return TRUE; |
2226 | } | |
2227 | ||
2228 | return TRUE; | |
2229 | } | |
2230 | ||
2231 | ||
2232 | /* | |
ff26aa29 | 2233 | * Pager backend |
b801d8b2 JF |
2234 | */ |
2235 | ||
6b161b31 | 2236 | static bool |
5dcf8064 | 2237 | pager_draw(struct view *view, struct line *line, unsigned int lineno, bool selected) |
b801d8b2 | 2238 | { |
fe7233c3 JF |
2239 | char *text = line->data; |
2240 | enum line_type type = line->type; | |
2241 | int textlen = strlen(text); | |
78c70acd | 2242 | int attr; |
b801d8b2 | 2243 | |
6706b2ba JF |
2244 | wmove(view->win, lineno, 0); |
2245 | ||
5dcf8064 | 2246 | if (selected) { |
78c70acd | 2247 | type = LINE_CURSOR; |
6706b2ba | 2248 | wchgat(view->win, -1, 0, type, NULL); |
fd85fef1 JF |
2249 | } |
2250 | ||
78c70acd | 2251 | attr = get_line_attr(type); |
b801d8b2 | 2252 | wattrset(view->win, attr); |
b76c2afc | 2253 | |
6706b2ba JF |
2254 | if (opt_line_number || opt_tab_size < TABSIZE) { |
2255 | static char spaces[] = " "; | |
2256 | int col_offset = 0, col = 0; | |
2257 | ||
2258 | if (opt_line_number) { | |
2259 | unsigned long real_lineno = view->offset + lineno + 1; | |
82e78006 | 2260 | |
6706b2ba JF |
2261 | if (real_lineno == 1 || |
2262 | (real_lineno % opt_num_interval) == 0) { | |
2263 | wprintw(view->win, "%.*d", view->digits, real_lineno); | |
8855ada4 | 2264 | |
6706b2ba JF |
2265 | } else { |
2266 | waddnstr(view->win, spaces, | |
2267 | MIN(view->digits, STRING_SIZE(spaces))); | |
2268 | } | |
2269 | waddstr(view->win, ": "); | |
2270 | col_offset = view->digits + 2; | |
2271 | } | |
8855ada4 | 2272 | |
fe7233c3 | 2273 | while (text && col_offset + col < view->width) { |
6706b2ba | 2274 | int cols_max = view->width - col_offset - col; |
fe7233c3 | 2275 | char *pos = text; |
6706b2ba | 2276 | int cols; |
4c6fabc2 | 2277 | |
fe7233c3 JF |
2278 | if (*text == '\t') { |
2279 | text++; | |
6706b2ba | 2280 | assert(sizeof(spaces) > TABSIZE); |
fe7233c3 | 2281 | pos = spaces; |
6706b2ba | 2282 | cols = opt_tab_size - (col % opt_tab_size); |
82e78006 | 2283 | |
b76c2afc | 2284 | } else { |
fe7233c3 JF |
2285 | text = strchr(text, '\t'); |
2286 | cols = line ? text - pos : strlen(pos); | |
b76c2afc | 2287 | } |
6706b2ba | 2288 | |
fe7233c3 | 2289 | waddnstr(view->win, pos, MIN(cols, cols_max)); |
6706b2ba | 2290 | col += cols; |
b76c2afc | 2291 | } |
b76c2afc JF |
2292 | |
2293 | } else { | |
6706b2ba | 2294 | int col = 0, pos = 0; |
b801d8b2 | 2295 | |
fe7233c3 JF |
2296 | for (; pos < textlen && col < view->width; pos++, col++) |
2297 | if (text[pos] == '\t') | |
6706b2ba JF |
2298 | col += TABSIZE - (col % TABSIZE) - 1; |
2299 | ||
fe7233c3 | 2300 | waddnstr(view->win, text, pos); |
6706b2ba | 2301 | } |
2e8488b4 | 2302 | |
b801d8b2 JF |
2303 | return TRUE; |
2304 | } | |
2305 | ||
dc23c0e3 | 2306 | static bool |
d65ced0d | 2307 | add_describe_ref(char *buf, size_t *bufpos, char *commit_id, const char *sep) |
dc23c0e3 | 2308 | { |
17482b11 | 2309 | char refbuf[SIZEOF_STR]; |
dc23c0e3 JF |
2310 | char *ref = NULL; |
2311 | FILE *pipe; | |
2312 | ||
d3c345f7 | 2313 | if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id)) |
dc23c0e3 JF |
2314 | return TRUE; |
2315 | ||
2316 | pipe = popen(refbuf, "r"); | |
2317 | if (!pipe) | |
2318 | return TRUE; | |
2319 | ||
2320 | if ((ref = fgets(refbuf, sizeof(refbuf), pipe))) | |
2321 | ref = chomp_string(ref); | |
2322 | pclose(pipe); | |
2323 | ||
2324 | if (!ref || !*ref) | |
2325 | return TRUE; | |
2326 | ||
2327 | /* This is the only fatal call, since it can "corrupt" the buffer. */ | |
17482b11 | 2328 | if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref)) |
dc23c0e3 JF |
2329 | return FALSE; |
2330 | ||
2331 | return TRUE; | |
2332 | } | |
2333 | ||
7b99a34c JF |
2334 | static void |
2335 | add_pager_refs(struct view *view, struct line *line) | |
2336 | { | |
17482b11 | 2337 | char buf[SIZEOF_STR]; |
c9ca1ec3 | 2338 | char *commit_id = line->data + STRING_SIZE("commit "); |
7b99a34c | 2339 | struct ref **refs; |
d65ced0d | 2340 | size_t bufpos = 0, refpos = 0; |
7b99a34c | 2341 | const char *sep = "Refs: "; |
dc23c0e3 | 2342 | bool is_tag = FALSE; |
7b99a34c JF |
2343 | |
2344 | assert(line->type == LINE_COMMIT); | |
2345 | ||
c9ca1ec3 | 2346 | refs = get_refs(commit_id); |
dc23c0e3 JF |
2347 | if (!refs) { |
2348 | if (view == VIEW(REQ_VIEW_DIFF)) | |
2349 | goto try_add_describe_ref; | |
7b99a34c | 2350 | return; |
dc23c0e3 | 2351 | } |
7b99a34c JF |
2352 | |
2353 | do { | |
cc2d1364 JF |
2354 | struct ref *ref = refs[refpos]; |
2355 | char *fmt = ref->tag ? "%s[%s]" : "%s%s"; | |
7b99a34c | 2356 | |
cc2d1364 JF |
2357 | if (!string_format_from(buf, &bufpos, fmt, sep, ref->name)) |
2358 | return; | |
7b99a34c | 2359 | sep = ", "; |
dc23c0e3 JF |
2360 | if (ref->tag) |
2361 | is_tag = TRUE; | |
7b99a34c JF |
2362 | } while (refs[refpos++]->next); |
2363 | ||
dc23c0e3 JF |
2364 | if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) { |
2365 | try_add_describe_ref: | |
d42c8a35 | 2366 | /* Add <tag>-g<commit_id> "fake" reference. */ |
dc23c0e3 JF |
2367 | if (!add_describe_ref(buf, &bufpos, commit_id, sep)) |
2368 | return; | |
2369 | } | |
2370 | ||
d42c8a35 JF |
2371 | if (bufpos == 0) |
2372 | return; | |
2373 | ||
cc2d1364 | 2374 | if (!realloc_lines(view, view->line_size + 1)) |
7b99a34c JF |
2375 | return; |
2376 | ||
2377 | line = &view->line[view->lines]; | |
2378 | line->data = strdup(buf); | |
2379 | if (!line->data) | |
2380 | return; | |
2381 | ||
2382 | line->type = LINE_PP_REFS; | |
2383 | view->lines++; | |
2384 | } | |
2385 | ||
6b161b31 | 2386 | static bool |
701e4f5d | 2387 | pager_read(struct view *view, char *data) |
22f66b0a | 2388 | { |
7b99a34c | 2389 | struct line *line = &view->line[view->lines]; |
22f66b0a | 2390 | |
7b99a34c JF |
2391 | line->data = strdup(data); |
2392 | if (!line->data) | |
2393 | return FALSE; | |
fe7233c3 | 2394 | |
7b99a34c | 2395 | line->type = get_line_type(line->data); |
22f66b0a | 2396 | view->lines++; |
7b99a34c JF |
2397 | |
2398 | if (line->type == LINE_COMMIT && | |
2399 | (view == VIEW(REQ_VIEW_DIFF) || | |
2400 | view == VIEW(REQ_VIEW_LOG))) | |
2401 | add_pager_refs(view, line); | |
2402 | ||
22f66b0a JF |
2403 | return TRUE; |
2404 | } | |
2405 | ||
6b161b31 | 2406 | static bool |
fe7233c3 | 2407 | pager_enter(struct view *view, struct line *line) |
6b161b31 | 2408 | { |
91e8e277 | 2409 | int split = 0; |
6b161b31 | 2410 | |
9fbbd28f JF |
2411 | if (line->type == LINE_COMMIT && |
2412 | (view == VIEW(REQ_VIEW_LOG) || | |
2413 | view == VIEW(REQ_VIEW_PAGER))) { | |
91e8e277 JF |
2414 | open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT); |
2415 | split = 1; | |
67e48ac5 JF |
2416 | } |
2417 | ||
91e8e277 JF |
2418 | /* Always scroll the view even if it was split. That way |
2419 | * you can use Enter to scroll through the log view and | |
2420 | * split open each commit diff. */ | |
2421 | scroll_view(view, REQ_SCROLL_LINE_DOWN); | |
2422 | ||
2423 | /* FIXME: A minor workaround. Scrolling the view will call report("") | |
9d82d824 JF |
2424 | * but if we are scrolling a non-current view this won't properly |
2425 | * update the view title. */ | |
91e8e277 JF |
2426 | if (split) |
2427 | update_view_title(view); | |
6b161b31 JF |
2428 | |
2429 | return TRUE; | |
2430 | } | |
2431 | ||
4af34daa JF |
2432 | static bool |
2433 | pager_grep(struct view *view, struct line *line) | |
2434 | { | |
2435 | regmatch_t pmatch; | |
2436 | char *text = line->data; | |
2437 | ||
2438 | if (!*text) | |
2439 | return FALSE; | |
2440 | ||
b77b2cb8 | 2441 | if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH) |
4af34daa JF |
2442 | return FALSE; |
2443 | ||
2444 | return TRUE; | |
2445 | } | |
2446 | ||
d720de4b JF |
2447 | static void |
2448 | pager_select(struct view *view, struct line *line) | |
2449 | { | |
2450 | if (line->type == LINE_COMMIT) { | |
2451 | char *text = line->data; | |
2452 | ||
5dcf8064 | 2453 | string_copy(view->ref, text + STRING_SIZE("commit ")); |
d720de4b JF |
2454 | string_copy(ref_commit, view->ref); |
2455 | } | |
2456 | } | |
2457 | ||
6b161b31 | 2458 | static struct view_ops pager_ops = { |
6734f6b9 | 2459 | "line", |
6b161b31 JF |
2460 | pager_draw, |
2461 | pager_read, | |
2462 | pager_enter, | |
4af34daa | 2463 | pager_grep, |
d720de4b | 2464 | pager_select, |
6b161b31 JF |
2465 | }; |
2466 | ||
80ce96ea | 2467 | |
ff26aa29 | 2468 | /* |
e733ee54 JF |
2469 | * Tree backend |
2470 | */ | |
2471 | ||
4795d620 | 2472 | /* Parse output from git-ls-tree(1): |
e733ee54 JF |
2473 | * |
2474 | * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile | |
2475 | * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README | |
2476 | * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c | |
2477 | * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf | |
2478 | */ | |
2479 | ||
2480 | #define SIZEOF_TREE_ATTR \ | |
2481 | STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t") | |
2482 | ||
2483 | #define TREE_UP_FORMAT "040000 tree %s\t.." | |
2484 | ||
2485 | static int | |
2486 | tree_compare_entry(enum line_type type1, char *name1, | |
2487 | enum line_type type2, char *name2) | |
2488 | { | |
2489 | if (type1 != type2) { | |
2490 | if (type1 == LINE_TREE_DIR) | |
2491 | return -1; | |
2492 | return 1; | |
2493 | } | |
2494 | ||
2495 | return strcmp(name1, name2); | |
2496 | } | |
2497 | ||
2498 | static bool | |
2499 | tree_read(struct view *view, char *text) | |
2500 | { | |
2501 | size_t textlen = strlen(text); | |
2502 | char buf[SIZEOF_STR]; | |
2503 | unsigned long pos; | |
2504 | enum line_type type; | |
f88a5319 | 2505 | bool first_read = view->lines == 0; |
e733ee54 JF |
2506 | |
2507 | if (textlen <= SIZEOF_TREE_ATTR) | |
2508 | return FALSE; | |
2509 | ||
2510 | type = text[STRING_SIZE("100644 ")] == 't' | |
2511 | ? LINE_TREE_DIR : LINE_TREE_FILE; | |
2512 | ||
f88a5319 | 2513 | if (first_read) { |
e733ee54 | 2514 | /* Add path info line */ |
4ea4ce91 | 2515 | if (string_format(buf, "Directory path /%s", opt_path) && |
e733ee54 JF |
2516 | realloc_lines(view, view->line_size + 1) && |
2517 | pager_read(view, buf)) | |
2518 | view->line[view->lines - 1].type = LINE_DEFAULT; | |
2519 | else | |
2520 | return FALSE; | |
2521 | ||
2522 | /* Insert "link" to parent directory. */ | |
2523 | if (*opt_path && | |
4ea4ce91 | 2524 | string_format(buf, TREE_UP_FORMAT, view->ref) && |
e733ee54 JF |
2525 | realloc_lines(view, view->line_size + 1) && |
2526 | pager_read(view, buf)) | |
2527 | view->line[view->lines - 1].type = LINE_TREE_DIR; | |
2528 | else if (*opt_path) | |
2529 | return FALSE; | |
2530 | } | |
2531 | ||
2532 | /* Strip the path part ... */ | |
2533 | if (*opt_path) { | |
2534 | size_t pathlen = textlen - SIZEOF_TREE_ATTR; | |
2535 | size_t striplen = strlen(opt_path); | |
2536 | char *path = text + SIZEOF_TREE_ATTR; | |
2537 | ||
2538 | if (pathlen > striplen) | |
2539 | memmove(path, path + striplen, | |
2540 | pathlen - striplen + 1); | |
2541 | } | |
2542 | ||
2543 | /* Skip "Directory ..." and ".." line. */ | |
2544 | for (pos = 1 + !!*opt_path; pos < view->lines; pos++) { | |
2545 | struct line *line = &view->line[pos]; | |
2546 | char *path1 = ((char *) line->data) + SIZEOF_TREE_ATTR; | |
2547 | char *path2 = text + SIZEOF_TREE_ATTR; | |
2548 | int cmp = tree_compare_entry(line->type, path1, type, path2); | |
2549 | ||
2550 | if (cmp <= 0) | |
2551 | continue; | |
2552 | ||
2553 | text = strdup(text); | |
2554 | if (!text) | |
2555 | return FALSE; | |
2556 | ||
2557 | if (view->lines > pos) | |
2558 | memmove(&view->line[pos + 1], &view->line[pos], | |
2559 | (view->lines - pos) * sizeof(*line)); | |
2560 | ||
2561 | line = &view->line[pos]; | |
2562 | line->data = text; | |
2563 | line->type = type; | |
2564 | view->lines++; | |
2565 | return TRUE; | |
2566 | } | |
2567 | ||
2568 | if (!pager_read(view, text)) | |
2569 | return FALSE; | |
2570 | ||
f88a5319 JF |
2571 | /* Move the current line to the first tree entry. */ |
2572 | if (first_read) | |
2573 | view->lineno++; | |
2574 | ||
e733ee54 JF |
2575 | view->line[view->lines - 1].type = type; |
2576 | return TRUE; | |
2577 | } | |
2578 | ||
2579 | static bool | |
2580 | tree_enter(struct view *view, struct line *line) | |
2581 | { | |
aac64c17 | 2582 | enum open_flags flags; |
e733ee54 JF |
2583 | enum request request; |
2584 | ||
2585 | switch (line->type) { | |
2586 | case LINE_TREE_DIR: | |
2587 | /* Depending on whether it is a subdir or parent (updir?) link | |
2588 | * mangle the path buffer. */ | |
2589 | if (line == &view->line[1] && *opt_path) { | |
2590 | size_t path_len = strlen(opt_path); | |
2591 | char *dirsep = opt_path + path_len - 1; | |
2592 | ||
2593 | while (dirsep > opt_path && dirsep[-1] != '/') | |
2594 | dirsep--; | |
2595 | ||
2596 | dirsep[0] = 0; | |
2597 | ||
2598 | } else { | |
d65ced0d | 2599 | size_t pathlen = strlen(opt_path); |
4ea4ce91 | 2600 | size_t origlen = pathlen; |
4795d620 | 2601 | char *data = line->data; |
e733ee54 JF |
2602 | char *basename = data + SIZEOF_TREE_ATTR; |
2603 | ||
4038038f | 2604 | if (!string_format_from(opt_path, &pathlen, "%s/", basename)) { |
4ea4ce91 JF |
2605 | opt_path[origlen] = 0; |
2606 | return TRUE; | |
2607 | } | |
e733ee54 JF |
2608 | } |
2609 | ||
2610 | /* Trees and subtrees share the same ID, so they are not not | |
2611 | * unique like blobs. */ | |
aac64c17 | 2612 | flags = OPEN_RELOAD; |
e733ee54 JF |
2613 | request = REQ_VIEW_TREE; |
2614 | break; | |
2615 | ||
2616 | case LINE_TREE_FILE: | |
aac64c17 | 2617 | flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT; |
e733ee54 JF |
2618 | request = REQ_VIEW_BLOB; |
2619 | break; | |
2620 | ||
2621 | default: | |
2622 | return TRUE; | |
2623 | } | |
2624 | ||
2625 | open_view(view, request, flags); | |
2626 | ||
e733ee54 JF |
2627 | return TRUE; |
2628 | } | |
2629 | ||
d720de4b JF |
2630 | static void |
2631 | tree_select(struct view *view, struct line *line) | |
2632 | { | |
73c76ef5 JF |
2633 | char *text = line->data; |
2634 | ||
2635 | text += STRING_SIZE("100644 blob "); | |
2636 | ||
2637 | if (line->type == LINE_TREE_FILE) { | |
2638 | string_ncopy(ref_blob, text, 40); | |
2639 | /* Also update the blob view's ref, since all there must always | |
2640 | * be in sync. */ | |
2641 | string_copy(VIEW(REQ_VIEW_BLOB)->ref, ref_blob); | |
d720de4b | 2642 | |
ebbaf4fe JF |
2643 | } else if (line->type != LINE_TREE_DIR) { |
2644 | return; | |
d720de4b | 2645 | } |
ebbaf4fe JF |
2646 | |
2647 | string_ncopy(view->ref, text, 40); | |
d720de4b JF |
2648 | } |
2649 | ||
e733ee54 JF |
2650 | static struct view_ops tree_ops = { |
2651 | "file", | |
2652 | pager_draw, | |
2653 | tree_read, | |
2654 | tree_enter, | |
2655 | pager_grep, | |
d720de4b | 2656 | tree_select, |
e733ee54 JF |
2657 | }; |
2658 | ||
2659 | static bool | |
2660 | blob_read(struct view *view, char *line) | |
2661 | { | |
2662 | bool state = pager_read(view, line); | |
2663 | ||
2664 | if (state == TRUE) | |
2665 | view->line[view->lines - 1].type = LINE_DEFAULT; | |
2666 | ||
2667 | return state; | |
2668 | } | |
2669 | ||
2670 | static struct view_ops blob_ops = { | |
2671 | "line", | |
2672 | pager_draw, | |
2673 | blob_read, | |
2674 | pager_enter, | |
2675 | pager_grep, | |
d720de4b | 2676 | pager_select, |
e733ee54 JF |
2677 | }; |
2678 | ||
2679 | ||
2680 | /* | |
ff26aa29 JF |
2681 | * Main view backend |
2682 | */ | |
2683 | ||
2684 | struct commit { | |
10446330 | 2685 | char id[SIZEOF_REV]; /* SHA1 ID. */ |
aea510c8 | 2686 | char title[128]; /* First line of the commit message. */ |
54efb62b JF |
2687 | char author[75]; /* Author of the commit. */ |
2688 | struct tm time; /* Date from the author ident. */ | |
2689 | struct ref **refs; /* Repository references. */ | |
2690 | chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */ | |
2691 | size_t graph_size; /* The width of the graph array. */ | |
ff26aa29 | 2692 | }; |
c34d9c9f | 2693 | |
6b161b31 | 2694 | static bool |
5dcf8064 | 2695 | main_draw(struct view *view, struct line *line, unsigned int lineno, bool selected) |
22f66b0a | 2696 | { |
2e8488b4 | 2697 | char buf[DATE_COLS + 1]; |
fe7233c3 | 2698 | struct commit *commit = line->data; |
78c70acd | 2699 | enum line_type type; |
6706b2ba | 2700 | int col = 0; |
b76c2afc | 2701 | size_t timelen; |
10e290ee | 2702 | size_t authorlen; |
9989bf60 | 2703 | int trimmed = 1; |
22f66b0a | 2704 | |
4c6fabc2 JF |
2705 | if (!*commit->author) |
2706 | return FALSE; | |
22f66b0a | 2707 | |
6706b2ba JF |
2708 | wmove(view->win, lineno, col); |
2709 | ||
5dcf8064 | 2710 | if (selected) { |
78c70acd | 2711 | type = LINE_CURSOR; |
6706b2ba JF |
2712 | wattrset(view->win, get_line_attr(type)); |
2713 | wchgat(view->win, -1, 0, type, NULL); | |
2714 | ||
78c70acd | 2715 | } else { |
b76c2afc | 2716 | type = LINE_MAIN_COMMIT; |
6706b2ba | 2717 | wattrset(view->win, get_line_attr(LINE_MAIN_DATE)); |
b76c2afc JF |
2718 | } |
2719 | ||
4c6fabc2 | 2720 | timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time); |
b76c2afc | 2721 | waddnstr(view->win, buf, timelen); |
4c6fabc2 | 2722 | waddstr(view->win, " "); |
b76c2afc | 2723 | |
6706b2ba JF |
2724 | col += DATE_COLS; |
2725 | wmove(view->win, lineno, col); | |
2726 | if (type != LINE_CURSOR) | |
2727 | wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR)); | |
b76c2afc | 2728 | |
9989bf60 JF |
2729 | if (opt_utf8) { |
2730 | authorlen = utf8_length(commit->author, AUTHOR_COLS - 2, &col, &trimmed); | |
2731 | } else { | |
2732 | authorlen = strlen(commit->author); | |
2733 | if (authorlen > AUTHOR_COLS - 2) { | |
2734 | authorlen = AUTHOR_COLS - 2; | |
2735 | trimmed = 1; | |
2736 | } | |
2737 | } | |
10e290ee JF |
2738 | |
2739 | if (trimmed) { | |
2740 | waddnstr(view->win, commit->author, authorlen); | |
6706b2ba JF |
2741 | if (type != LINE_CURSOR) |
2742 | wattrset(view->win, get_line_attr(LINE_MAIN_DELIM)); | |
b76c2afc JF |
2743 | waddch(view->win, '~'); |
2744 | } else { | |
2745 | waddstr(view->win, commit->author); | |
22f66b0a JF |
2746 | } |
2747 | ||
10e290ee | 2748 | col += AUTHOR_COLS; |
6706b2ba JF |
2749 | if (type != LINE_CURSOR) |
2750 | wattrset(view->win, A_NORMAL); | |
2751 | ||
54efb62b JF |
2752 | if (opt_rev_graph && commit->graph_size) { |
2753 | size_t i; | |
2754 | ||
2755 | wmove(view->win, lineno, col); | |
2756 | /* Using waddch() instead of waddnstr() ensures that | |
2757 | * they'll be rendered correctly for the cursor line. */ | |
2758 | for (i = 0; i < commit->graph_size; i++) | |
2759 | waddch(view->win, commit->graph[i]); | |
2760 | ||
2761 | col += commit->graph_size + 1; | |
2762 | } | |
2763 | ||
2764 | wmove(view->win, lineno, col); | |
c34d9c9f JF |
2765 | |
2766 | if (commit->refs) { | |
2767 | size_t i = 0; | |
2768 | ||
2769 | do { | |
6706b2ba JF |
2770 | if (type == LINE_CURSOR) |
2771 | ; | |
2772 | else if (commit->refs[i]->tag) | |
c34d9c9f JF |
2773 | wattrset(view->win, get_line_attr(LINE_MAIN_TAG)); |
2774 | else | |
2775 | wattrset(view->win, get_line_attr(LINE_MAIN_REF)); | |
2776 | waddstr(view->win, "["); | |
2777 | waddstr(view->win, commit->refs[i]->name); | |
2778 | waddstr(view->win, "]"); | |
6706b2ba JF |
2779 | if (type != LINE_CURSOR) |
2780 | wattrset(view->win, A_NORMAL); | |
c34d9c9f | 2781 | waddstr(view->win, " "); |
6706b2ba | 2782 | col += strlen(commit->refs[i]->name) + STRING_SIZE("[] "); |
c34d9c9f JF |
2783 | } while (commit->refs[i++]->next); |
2784 | } | |
2785 | ||
6706b2ba JF |
2786 | if (type != LINE_CURSOR) |
2787 | wattrset(view->win, get_line_attr(type)); | |
2788 | ||
2789 | { | |
2790 | int titlelen = strlen(commit->title); | |
2791 | ||
2792 | if (col + titlelen > view->width) | |
2793 | titlelen = view->width - col; | |
2794 | ||
2795 | waddnstr(view->win, commit->title, titlelen); | |
2796 | } | |
22f66b0a JF |
2797 | |
2798 | return TRUE; | |
2799 | } | |
2800 | ||
4c6fabc2 | 2801 | /* Reads git log --pretty=raw output and parses it into the commit struct. */ |
6b161b31 | 2802 | static bool |
701e4f5d | 2803 | main_read(struct view *view, char *line) |
22f66b0a | 2804 | { |
78c70acd | 2805 | enum line_type type = get_line_type(line); |
701e4f5d JF |
2806 | struct commit *commit = view->lines |
2807 | ? view->line[view->lines - 1].data : NULL; | |
22f66b0a | 2808 | |
78c70acd JF |
2809 | switch (type) { |
2810 | case LINE_COMMIT: | |
22f66b0a JF |
2811 | commit = calloc(1, sizeof(struct commit)); |
2812 | if (!commit) | |
2813 | return FALSE; | |
2814 | ||
4c6fabc2 | 2815 | line += STRING_SIZE("commit "); |
b76c2afc | 2816 | |
fe7233c3 | 2817 | view->line[view->lines++].data = commit; |
82e78006 | 2818 | string_copy(commit->id, line); |
c34d9c9f | 2819 | commit->refs = get_refs(commit->id); |
54efb62b | 2820 | commit->graph[commit->graph_size++] = ACS_LTEE; |
78c70acd | 2821 | break; |
22f66b0a | 2822 | |
8855ada4 | 2823 | case LINE_AUTHOR: |
b76c2afc | 2824 | { |
19c3ac60 JF |
2825 | /* Parse author lines where the name may be empty: |
2826 | * author <email@address.tld> 1138474660 +0100 | |
2827 | */ | |
4c6fabc2 | 2828 | char *ident = line + STRING_SIZE("author "); |
19c3ac60 JF |
2829 | char *nameend = strchr(ident, '<'); |
2830 | char *emailend = strchr(ident, '>'); | |
b76c2afc | 2831 | |
19c3ac60 | 2832 | if (!commit || !nameend || !emailend) |
fe7233c3 JF |
2833 | break; |
2834 | ||
19c3ac60 JF |
2835 | *nameend = *emailend = 0; |
2836 | ident = chomp_string(ident); | |
2837 | if (!*ident) { | |
2838 | ident = chomp_string(nameend + 1); | |
2839 | if (!*ident) | |
2840 | ident = "Unknown"; | |
b76c2afc JF |
2841 | } |
2842 | ||
82e78006 | 2843 | string_copy(commit->author, ident); |
b76c2afc | 2844 | |
4c6fabc2 | 2845 | /* Parse epoch and timezone */ |
19c3ac60 JF |
2846 | if (emailend[1] == ' ') { |
2847 | char *secs = emailend + 2; | |
2848 | char *zone = strchr(secs, ' '); | |
2849 | time_t time = (time_t) atol(secs); | |
b76c2afc | 2850 | |
4c6fabc2 | 2851 | if (zone && strlen(zone) == STRING_SIZE(" +0700")) { |
b76c2afc JF |
2852 | long tz; |
2853 | ||
2854 | zone++; | |
2855 | tz = ('0' - zone[1]) * 60 * 60 * 10; | |
2856 | tz += ('0' - zone[2]) * 60 * 60; | |
2857 | tz += ('0' - zone[3]) * 60; | |
2858 | tz += ('0' - zone[4]) * 60; | |
2859 | ||
2860 | if (zone[0] == '-') | |
2861 | tz = -tz; | |
2862 | ||
2863 | time -= tz; | |
2864 | } | |
19c3ac60 | 2865 | |
b76c2afc JF |
2866 | gmtime_r(&time, &commit->time); |
2867 | } | |
2868 | break; | |
2869 | } | |
78c70acd | 2870 | default: |
701e4f5d | 2871 | if (!commit) |
2e8488b4 JF |
2872 | break; |
2873 | ||
2874 | /* Fill in the commit title if it has not already been set. */ | |
2e8488b4 JF |
2875 | if (commit->title[0]) |
2876 | break; | |
2877 | ||
2878 | /* Require titles to start with a non-space character at the | |
2879 | * offset used by git log. */ | |
9073c64a JF |
2880 | if (strncmp(line, " ", 4)) |
2881 | break; | |
2882 | line += 4; | |
2883 | /* Well, if the title starts with a whitespace character, | |
2884 | * try to be forgiving. Otherwise we end up with no title. */ | |
2885 | while (isspace(*line)) | |
2886 | line++; | |
2887 | if (*line == '\0') | |
82e78006 | 2888 | break; |
9073c64a JF |
2889 | /* FIXME: More graceful handling of titles; append "..." to |
2890 | * shortened titles, etc. */ | |
82e78006 | 2891 | |
9073c64a | 2892 | string_copy(commit->title, line); |
22f66b0a JF |
2893 | } |
2894 | ||
2895 | return TRUE; | |
2896 | } | |
2897 | ||
6b161b31 | 2898 | static bool |
fe7233c3 | 2899 | main_enter(struct view *view, struct line *line) |
b801d8b2 | 2900 | { |
b3a54cba JF |
2901 | enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT; |
2902 | ||
2903 | open_view(view, REQ_VIEW_DIFF, flags); | |
6b161b31 | 2904 | return TRUE; |
b801d8b2 JF |
2905 | } |
2906 | ||
4af34daa JF |
2907 | static bool |
2908 | main_grep(struct view *view, struct line *line) | |
2909 | { | |
2910 | struct commit *commit = line->data; | |
2911 | enum { S_TITLE, S_AUTHOR, S_DATE, S_END } state; | |
2912 | char buf[DATE_COLS + 1]; | |
2913 | regmatch_t pmatch; | |
2914 | ||
2915 | for (state = S_TITLE; state < S_END; state++) { | |
2916 | char *text; | |
2917 | ||
2918 | switch (state) { | |
2919 | case S_TITLE: text = commit->title; break; | |
2920 | case S_AUTHOR: text = commit->author; break; | |
2921 | case S_DATE: | |
2922 | if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time)) | |
2923 | continue; | |
2924 | text = buf; | |
2925 | break; | |
2926 | ||
2927 | default: | |
2928 | return FALSE; | |
2929 | } | |
2930 | ||
b77b2cb8 | 2931 | if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH) |
4af34daa JF |
2932 | return TRUE; |
2933 | } | |
2934 | ||
2935 | return FALSE; | |
2936 | } | |
2937 | ||
d720de4b JF |
2938 | static void |
2939 | main_select(struct view *view, struct line *line) | |
2940 | { | |
2941 | struct commit *commit = line->data; | |
2942 | ||
2943 | string_copy(view->ref, commit->id); | |
2944 | string_copy(ref_commit, view->ref); | |
2945 | } | |
2946 | ||
6b161b31 | 2947 | static struct view_ops main_ops = { |
6734f6b9 | 2948 | "commit", |
6b161b31 JF |
2949 | main_draw, |
2950 | main_read, | |
2951 | main_enter, | |
4af34daa | 2952 | main_grep, |
d720de4b | 2953 | main_select, |
6b161b31 | 2954 | }; |
2e8488b4 | 2955 | |
c34d9c9f | 2956 | |
6b161b31 | 2957 | /* |
10e290ee JF |
2958 | * Unicode / UTF-8 handling |
2959 | * | |
2960 | * NOTE: Much of the following code for dealing with unicode is derived from | |
2961 | * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is | |
2962 | * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28. | |
2963 | */ | |
2964 | ||
2965 | /* I've (over)annotated a lot of code snippets because I am not entirely | |
2966 | * confident that the approach taken by this small UTF-8 interface is correct. | |
2967 | * --jonas */ | |
2968 | ||
2969 | static inline int | |
2970 | unicode_width(unsigned long c) | |
2971 | { | |
2972 | if (c >= 0x1100 && | |
2973 | (c <= 0x115f /* Hangul Jamo */ | |
2974 | || c == 0x2329 | |
2975 | || c == 0x232a | |
2976 | || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f) | |
f97f4012 | 2977 | /* CJK ... Yi */ |
10e290ee JF |
2978 | || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */ |
2979 | || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */ | |
2980 | || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */ | |
2981 | || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */ | |
2982 | || (c >= 0xffe0 && c <= 0xffe6) | |
2983 | || (c >= 0x20000 && c <= 0x2fffd) | |
2984 | || (c >= 0x30000 && c <= 0x3fffd))) | |
2985 | return 2; | |
2986 | ||
2987 | return 1; | |
2988 | } | |
2989 | ||
2990 | /* Number of bytes used for encoding a UTF-8 character indexed by first byte. | |
2991 | * Illegal bytes are set one. */ | |
2992 | static const unsigned char utf8_bytes[256] = { | |
2993 | 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, | |
2994 | 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, | |
2995 | 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, | |
2996 | 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, | |
2997 | 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, | |
2998 | 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, | |
2999 | 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, | |
3000 | 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, | |
3001 | }; | |
3002 | ||
3003 | /* Decode UTF-8 multi-byte representation into a unicode character. */ | |
3004 | static inline unsigned long | |
3005 | utf8_to_unicode(const char *string, size_t length) | |
3006 | { | |
3007 | unsigned long unicode; | |
3008 | ||
3009 | switch (length) { | |
3010 | case 1: | |
3011 | unicode = string[0]; | |
3012 | break; | |
3013 | case 2: | |
3014 | unicode = (string[0] & 0x1f) << 6; | |
3015 | unicode += (string[1] & 0x3f); | |
3016 | break; | |
3017 | case 3: | |
3018 | unicode = (string[0] & 0x0f) << 12; | |
3019 | unicode += ((string[1] & 0x3f) << 6); | |
3020 | unicode += (string[2] & 0x3f); | |
3021 | break; | |
3022 | case 4: | |
3023 | unicode = (string[0] & 0x0f) << 18; | |
3024 | unicode += ((string[1] & 0x3f) << 12); | |
3025 | unicode += ((string[2] & 0x3f) << 6); | |
3026 | unicode += (string[3] & 0x3f); | |
3027 | break; | |
3028 | case 5: | |
3029 | unicode = (string[0] & 0x0f) << 24; | |
3030 | unicode += ((string[1] & 0x3f) << 18); | |
3031 | unicode += ((string[2] & 0x3f) << 12); | |
3032 | unicode += ((string[3] & 0x3f) << 6); | |
3033 | unicode += (string[4] & 0x3f); | |
3034 | break; | |
68b6e0eb | 3035 | case 6: |
10e290ee JF |
3036 | unicode = (string[0] & 0x01) << 30; |
3037 | unicode += ((string[1] & 0x3f) << 24); | |
3038 | unicode += ((string[2] & 0x3f) << 18); | |
3039 | unicode += ((string[3] & 0x3f) << 12); | |
3040 | unicode += ((string[4] & 0x3f) << 6); | |
3041 | unicode += (string[5] & 0x3f); | |
3042 | break; | |
3043 | default: | |
3044 | die("Invalid unicode length"); | |
3045 | } | |
3046 | ||
3047 | /* Invalid characters could return the special 0xfffd value but NUL | |
3048 | * should be just as good. */ | |
3049 | return unicode > 0xffff ? 0 : unicode; | |
3050 | } | |
3051 | ||
3052 | /* Calculates how much of string can be shown within the given maximum width | |
3053 | * and sets trimmed parameter to non-zero value if all of string could not be | |
3054 | * shown. | |
3055 | * | |
3056 | * Additionally, adds to coloffset how many many columns to move to align with | |
3057 | * the expected position. Takes into account how multi-byte and double-width | |
3058 | * characters will effect the cursor position. | |
3059 | * | |
3060 | * Returns the number of bytes to output from string to satisfy max_width. */ | |
3061 | static size_t | |
3062 | utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed) | |
3063 | { | |
3064 | const char *start = string; | |
3065 | const char *end = strchr(string, '\0'); | |
3066 | size_t mbwidth = 0; | |
3067 | size_t width = 0; | |
3068 | ||
3069 | *trimmed = 0; | |
3070 | ||
3071 | while (string < end) { | |
3072 | int c = *(unsigned char *) string; | |
3073 | unsigned char bytes = utf8_bytes[c]; | |
3074 | size_t ucwidth; | |
3075 | unsigned long unicode; | |
3076 | ||
3077 | if (string + bytes > end) | |
3078 | break; | |
3079 | ||
3080 | /* Change representation to figure out whether | |
3081 | * it is a single- or double-width character. */ | |
3082 | ||
3083 | unicode = utf8_to_unicode(string, bytes); | |
3084 | /* FIXME: Graceful handling of invalid unicode character. */ | |
3085 | if (!unicode) | |
3086 | break; | |
3087 | ||
3088 | ucwidth = unicode_width(unicode); | |
3089 | width += ucwidth; | |
3090 | if (width > max_width) { | |
3091 | *trimmed = 1; | |
3092 | break; | |
3093 | } | |
3094 | ||
3095 | /* The column offset collects the differences between the | |
3096 | * number of bytes encoding a character and the number of | |
3097 | * columns will be used for rendering said character. | |
3098 | * | |
3099 | * So if some character A is encoded in 2 bytes, but will be | |
3100 | * represented on the screen using only 1 byte this will and up | |
3101 | * adding 1 to the multi-byte column offset. | |
3102 | * | |
3103 | * Assumes that no double-width character can be encoding in | |
3104 | * less than two bytes. */ | |
3105 | if (bytes > ucwidth) | |
3106 | mbwidth += bytes - ucwidth; | |
3107 | ||
3108 | string += bytes; | |
3109 | } | |
3110 | ||
3111 | *coloffset += mbwidth; | |
3112 | ||
3113 | return string - start; | |
3114 | } | |
3115 | ||
3116 | ||
3117 | /* | |
6b161b31 JF |
3118 | * Status management |
3119 | */ | |
2e8488b4 | 3120 | |
8855ada4 | 3121 | /* Whether or not the curses interface has been initialized. */ |
68b6e0eb | 3122 | static bool cursed = FALSE; |
8855ada4 | 3123 | |
6b161b31 JF |
3124 | /* The status window is used for polling keystrokes. */ |
3125 | static WINDOW *status_win; | |
4a2909a7 | 3126 | |
21be28fb JF |
3127 | static bool status_empty = TRUE; |
3128 | ||
2e8488b4 | 3129 | /* Update status and title window. */ |
4a2909a7 JF |
3130 | static void |
3131 | report(const char *msg, ...) | |
3132 | { | |
6706b2ba | 3133 | struct view *view = display[current_view]; |
b76c2afc | 3134 | |
ab4af23e JF |
3135 | if (input_mode) |
3136 | return; | |
3137 | ||
21be28fb | 3138 | if (!status_empty || *msg) { |
6706b2ba | 3139 | va_list args; |
4a2909a7 | 3140 | |
6706b2ba | 3141 | va_start(args, msg); |
4b76734f | 3142 | |
6706b2ba JF |
3143 | wmove(status_win, 0, 0); |
3144 | if (*msg) { | |
3145 | vwprintw(status_win, msg, args); | |
21be28fb | 3146 | status_empty = FALSE; |
6706b2ba | 3147 | } else { |
21be28fb | 3148 | status_empty = TRUE; |
6706b2ba | 3149 | } |
390a8262 | 3150 | wclrtoeol(status_win); |
6706b2ba | 3151 | wrefresh(status_win); |
b801d8b2 | 3152 | |
6706b2ba JF |
3153 | va_end(args); |
3154 | } | |
3155 | ||
3156 | update_view_title(view); | |
2bee3bde | 3157 | update_display_cursor(view); |
b801d8b2 JF |
3158 | } |
3159 | ||
6b161b31 JF |
3160 | /* Controls when nodelay should be in effect when polling user input. */ |
3161 | static void | |
1ba2ae4b | 3162 | set_nonblocking_input(bool loading) |
b801d8b2 | 3163 | { |
6706b2ba | 3164 | static unsigned int loading_views; |
b801d8b2 | 3165 | |
6706b2ba JF |
3166 | if ((loading == FALSE && loading_views-- == 1) || |
3167 | (loading == TRUE && loading_views++ == 0)) | |
1ba2ae4b | 3168 | nodelay(status_win, loading); |
6b161b31 JF |
3169 | } |
3170 | ||
3171 | static void | |
3172 | init_display(void) | |
3173 | { | |
3174 | int x, y; | |
b76c2afc | 3175 | |
6908bdbd JF |
3176 | /* Initialize the curses library */ |
3177 | if (isatty(STDIN_FILENO)) { | |
8855ada4 | 3178 | cursed = !!initscr(); |
6908bdbd JF |
3179 | } else { |
3180 | /* Leave stdin and stdout alone when acting as a pager. */ | |
3181 | FILE *io = fopen("/dev/tty", "r+"); | |
3182 | ||
e6f60674 JF |
3183 | if (!io) |
3184 | die("Failed to open /dev/tty"); | |
8855ada4 | 3185 | cursed = !!newterm(NULL, io, io); |
6908bdbd JF |
3186 | } |
3187 | ||
8855ada4 JF |
3188 | if (!cursed) |
3189 | die("Failed to initialize curses"); | |
3190 | ||
2e8488b4 JF |
3191 | nonl(); /* Tell curses not to do NL->CR/NL on output */ |
3192 | cbreak(); /* Take input chars one at a time, no wait for \n */ | |
3193 | noecho(); /* Don't echo input */ | |
b801d8b2 | 3194 | leaveok(stdscr, TRUE); |
b801d8b2 JF |
3195 | |
3196 | if (has_colors()) | |
3197 | init_colors(); | |
3198 | ||
3199 | getmaxyx(stdscr, y, x); | |
3200 | status_win = newwin(1, 0, y - 1, 0); | |
3201 | if (!status_win) | |
3202 | die("Failed to create status window"); | |
3203 | ||
3204 | /* Enable keyboard mapping */ | |
3205 | keypad(status_win, TRUE); | |
78c70acd | 3206 | wbkgdset(status_win, get_line_attr(LINE_STATUS)); |
6b161b31 JF |
3207 | } |
3208 | ||
4af34daa | 3209 | static char * |
cb9e48c1 | 3210 | read_prompt(const char *prompt) |
ef5404a4 JF |
3211 | { |
3212 | enum { READING, STOP, CANCEL } status = READING; | |
9e21ce5c | 3213 | static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")]; |
ef5404a4 JF |
3214 | int pos = 0; |
3215 | ||
3216 | while (status == READING) { | |
3217 | struct view *view; | |
3218 | int i, key; | |
3219 | ||
ab4af23e JF |
3220 | input_mode = TRUE; |
3221 | ||
699ae55b | 3222 | foreach_view (view, i) |
ef5404a4 JF |
3223 | update_view(view); |
3224 | ||
ab4af23e JF |
3225 | input_mode = FALSE; |
3226 | ||
3227 | mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf); | |
3228 | wclrtoeol(status_win); | |
3229 | ||
ef5404a4 JF |
3230 | /* Refresh, accept single keystroke of input */ |
3231 | key = wgetch(status_win); | |
3232 | switch (key) { | |
3233 | case KEY_RETURN: | |
3234 | case KEY_ENTER: | |
3235 | case '\n': | |
3236 | status = pos ? STOP : CANCEL; | |
3237 | break; | |
3238 | ||
3239 | case KEY_BACKSPACE: | |
3240 | if (pos > 0) | |
3241 | pos--; | |
3242 | else | |
3243 | status = CANCEL; | |
3244 | break; | |
3245 | ||
3246 | case KEY_ESC: | |
3247 | status = CANCEL; | |
3248 | break; | |
3249 | ||
3250 | case ERR: | |
3251 | break; | |
3252 | ||
3253 | default: | |
3254 | if (pos >= sizeof(buf)) { | |
3255 | report("Input string too long"); | |
9e21ce5c | 3256 | return NULL; |
ef5404a4 JF |
3257 | } |
3258 | ||
3259 | if (isprint(key)) | |
3260 | buf[pos++] = (char) key; | |
3261 | } | |
3262 | } | |
3263 | ||
7a06ebdf JF |
3264 | /* Clear the status window */ |
3265 | status_empty = FALSE; | |
3266 | report(""); | |
3267 | ||
3268 | if (status == CANCEL) | |
9e21ce5c | 3269 | return NULL; |
ef5404a4 JF |
3270 | |
3271 | buf[pos++] = 0; | |
ef5404a4 | 3272 | |
9e21ce5c | 3273 | return buf; |
ef5404a4 | 3274 | } |
c34d9c9f JF |
3275 | |
3276 | /* | |
3277 | * Repository references | |
3278 | */ | |
3279 | ||
3280 | static struct ref *refs; | |
3a91b75e | 3281 | static size_t refs_size; |
c34d9c9f | 3282 | |
1307df1a JF |
3283 | /* Id <-> ref store */ |
3284 | static struct ref ***id_refs; | |
3285 | static size_t id_refs_size; | |
3286 | ||
c34d9c9f JF |
3287 | static struct ref ** |
3288 | get_refs(char *id) | |
3289 | { | |
1307df1a JF |
3290 | struct ref ***tmp_id_refs; |
3291 | struct ref **ref_list = NULL; | |
3292 | size_t ref_list_size = 0; | |
c34d9c9f JF |
3293 | size_t i; |
3294 | ||
1307df1a JF |
3295 | for (i = 0; i < id_refs_size; i++) |
3296 | if (!strcmp(id, id_refs[i][0]->id)) | |
3297 | return id_refs[i]; | |
3298 | ||
3299 | tmp_id_refs = realloc(id_refs, (id_refs_size + 1) * sizeof(*id_refs)); | |
3300 | if (!tmp_id_refs) | |
3301 | return NULL; | |
3302 | ||
3303 | id_refs = tmp_id_refs; | |
3304 | ||
c34d9c9f JF |
3305 | for (i = 0; i < refs_size; i++) { |
3306 | struct ref **tmp; | |
3307 | ||
3308 | if (strcmp(id, refs[i].id)) | |
3309 | continue; | |
3310 | ||
1307df1a | 3311 | tmp = realloc(ref_list, (ref_list_size + 1) * sizeof(*ref_list)); |
c34d9c9f | 3312 | if (!tmp) { |
1307df1a JF |
3313 | if (ref_list) |
3314 | free(ref_list); | |
c34d9c9f JF |
3315 | return NULL; |
3316 | } | |
3317 | ||
1307df1a JF |
3318 | ref_list = tmp; |
3319 | if (ref_list_size > 0) | |
3320 | ref_list[ref_list_size - 1]->next = 1; | |
3321 | ref_list[ref_list_size] = &refs[i]; | |
3af8774e JF |
3322 | |
3323 | /* XXX: The properties of the commit chains ensures that we can | |
3324 | * safely modify the shared ref. The repo references will | |
3325 | * always be similar for the same id. */ | |
1307df1a JF |
3326 | ref_list[ref_list_size]->next = 0; |
3327 | ref_list_size++; | |
c34d9c9f JF |
3328 | } |
3329 | ||
1307df1a JF |
3330 | if (ref_list) |
3331 | id_refs[id_refs_size++] = ref_list; | |
3332 | ||
3333 | return ref_list; | |
c34d9c9f JF |
3334 | } |
3335 | ||
3336 | static int | |
d0cea5f9 | 3337 | read_ref(char *id, int idlen, char *name, int namelen) |
c34d9c9f | 3338 | { |
d0cea5f9 JF |
3339 | struct ref *ref; |
3340 | bool tag = FALSE; | |
d0cea5f9 | 3341 | |
8b0297ae JF |
3342 | if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) { |
3343 | /* Commits referenced by tags has "^{}" appended. */ | |
3344 | if (name[namelen - 1] != '}') | |
3345 | return OK; | |
3346 | ||
d0cea5f9 JF |
3347 | while (namelen > 0 && name[namelen] != '^') |
3348 | namelen--; | |
c34d9c9f | 3349 | |
d0cea5f9 | 3350 | tag = TRUE; |
8b0297ae JF |
3351 | namelen -= STRING_SIZE("refs/tags/"); |
3352 | name += STRING_SIZE("refs/tags/"); | |
c34d9c9f | 3353 | |
d0cea5f9 | 3354 | } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) { |
8b0297ae JF |
3355 | namelen -= STRING_SIZE("refs/heads/"); |
3356 | name += STRING_SIZE("refs/heads/"); | |
c34d9c9f | 3357 | |
d0cea5f9 JF |
3358 | } else if (!strcmp(name, "HEAD")) { |
3359 | return OK; | |
3360 | } | |
6706b2ba | 3361 | |
d0cea5f9 JF |
3362 | refs = realloc(refs, sizeof(*refs) * (refs_size + 1)); |
3363 | if (!refs) | |
3364 | return ERR; | |
c34d9c9f | 3365 | |
d0cea5f9 | 3366 | ref = &refs[refs_size++]; |
8b0297ae | 3367 | ref->name = malloc(namelen + 1); |
d0cea5f9 JF |
3368 | if (!ref->name) |
3369 | return ERR; | |
3af8774e | 3370 | |
8b0297ae JF |
3371 | strncpy(ref->name, name, namelen); |
3372 | ref->name[namelen] = 0; | |
d0cea5f9 JF |
3373 | ref->tag = tag; |
3374 | string_copy(ref->id, id); | |
3af8774e | 3375 | |
d0cea5f9 JF |
3376 | return OK; |
3377 | } | |
c34d9c9f | 3378 | |
d0cea5f9 JF |
3379 | static int |
3380 | load_refs(void) | |
3381 | { | |
3382 | const char *cmd_env = getenv("TIG_LS_REMOTE"); | |
3383 | const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE; | |
c34d9c9f | 3384 | |
4a63c884 | 3385 | return read_properties(popen(cmd, "r"), "\t", read_ref); |
d0cea5f9 | 3386 | } |
c34d9c9f | 3387 | |
d0cea5f9 | 3388 | static int |
14c778a6 | 3389 | read_repo_config_option(char *name, int namelen, char *value, int valuelen) |
d0cea5f9 | 3390 | { |
22913179 | 3391 | if (!strcmp(name, "i18n.commitencoding")) |
d0cea5f9 | 3392 | string_copy(opt_encoding, value); |
c34d9c9f | 3393 | |
c34d9c9f JF |
3394 | return OK; |
3395 | } | |
3396 | ||
4670cf89 | 3397 | static int |
14c778a6 | 3398 | load_repo_config(void) |
4670cf89 | 3399 | { |
66749723 | 3400 | return read_properties(popen("git repo-config --list", "r"), |
14c778a6 | 3401 | "=", read_repo_config_option); |
d0cea5f9 JF |
3402 | } |
3403 | ||
3404 | static int | |
4a63c884 | 3405 | read_properties(FILE *pipe, const char *separators, |
d0cea5f9 JF |
3406 | int (*read_property)(char *, int, char *, int)) |
3407 | { | |
4670cf89 JF |
3408 | char buffer[BUFSIZ]; |
3409 | char *name; | |
d0cea5f9 | 3410 | int state = OK; |
4670cf89 JF |
3411 | |
3412 | if (!pipe) | |
3413 | return ERR; | |
3414 | ||
d0cea5f9 | 3415 | while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) { |
4a63c884 JF |
3416 | char *value; |
3417 | size_t namelen; | |
3418 | size_t valuelen; | |
4670cf89 | 3419 | |
4a63c884 JF |
3420 | name = chomp_string(name); |
3421 | namelen = strcspn(name, separators); | |
3422 | ||
3423 | if (name[namelen]) { | |
3424 | name[namelen] = 0; | |
3425 | value = chomp_string(name + namelen + 1); | |
d0cea5f9 | 3426 | valuelen = strlen(value); |
4670cf89 | 3427 | |
d0cea5f9 | 3428 | } else { |
d0cea5f9 JF |
3429 | value = ""; |
3430 | valuelen = 0; | |
4670cf89 | 3431 | } |
d0cea5f9 | 3432 | |
3c3801c2 | 3433 | state = read_property(name, namelen, value, valuelen); |
4670cf89 JF |
3434 | } |
3435 | ||
d0cea5f9 JF |
3436 | if (state != ERR && ferror(pipe)) |
3437 | state = ERR; | |
4670cf89 JF |
3438 | |
3439 | pclose(pipe); | |
3440 | ||
d0cea5f9 | 3441 | return state; |
4670cf89 JF |
3442 | } |
3443 | ||
d0cea5f9 | 3444 | |
6b161b31 JF |
3445 | /* |
3446 | * Main | |
3447 | */ | |
3448 | ||
b5c9e67f | 3449 | static void __NORETURN |
6b161b31 JF |
3450 | quit(int sig) |
3451 | { | |
8855ada4 JF |
3452 | /* XXX: Restore tty modes and let the OS cleanup the rest! */ |
3453 | if (cursed) | |
3454 | endwin(); | |
6b161b31 JF |
3455 | exit(0); |
3456 | } | |
3457 | ||
c6704a4e JF |
3458 | static void __NORETURN |
3459 | die(const char *err, ...) | |
6b161b31 JF |
3460 | { |
3461 | va_list args; | |
3462 | ||
3463 | endwin(); | |
3464 | ||
3465 | va_start(args, err); | |
3466 | fputs("tig: ", stderr); | |
3467 | vfprintf(stderr, err, args); | |
3468 | fputs("\n", stderr); | |
3469 | va_end(args); | |
3470 | ||
3471 | exit(1); | |
3472 | } | |
3473 | ||
3474 | int | |
3475 | main(int argc, char *argv[]) | |
3476 | { | |
1ba2ae4b | 3477 | struct view *view; |
6b161b31 | 3478 | enum request request; |
1ba2ae4b | 3479 | size_t i; |
6b161b31 JF |
3480 | |
3481 | signal(SIGINT, quit); | |
3482 | ||
6b68fd24 JF |
3483 | if (setlocale(LC_ALL, "")) { |
3484 | string_copy(opt_codeset, nl_langinfo(CODESET)); | |
3485 | } | |
3486 | ||
660e09ad JF |
3487 | if (load_options() == ERR) |
3488 | die("Failed to load user config."); | |
3489 | ||
3490 | /* Load the repo config file so options can be overwritten from | |
afdc35b3 | 3491 | * the command line. */ |
14c778a6 | 3492 | if (load_repo_config() == ERR) |
afdc35b3 JF |
3493 | die("Failed to load repo config."); |
3494 | ||
8855ada4 | 3495 | if (!parse_options(argc, argv)) |
6b161b31 JF |
3496 | return 0; |
3497 | ||
6b68fd24 JF |
3498 | if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) { |
3499 | opt_iconv = iconv_open(opt_codeset, opt_encoding); | |
20f4b4a3 | 3500 | if (opt_iconv == ICONV_NONE) |
6b68fd24 JF |
3501 | die("Failed to initialize character set conversion"); |
3502 | } | |
3503 | ||
c34d9c9f JF |
3504 | if (load_refs() == ERR) |
3505 | die("Failed to load refs."); | |
3506 | ||
7bb55251 JF |
3507 | /* Require a git repository unless when running in pager mode. */ |
3508 | if (refs_size == 0 && opt_request != REQ_VIEW_PAGER) | |
3509 | die("Not a git repository"); | |
3510 | ||
1ba2ae4b JF |
3511 | for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++) |
3512 | view->cmd_env = getenv(view->cmd_env); | |
3513 | ||
6b161b31 JF |
3514 | request = opt_request; |
3515 | ||
3516 | init_display(); | |
b801d8b2 JF |
3517 | |
3518 | while (view_driver(display[current_view], request)) { | |
6b161b31 | 3519 | int key; |
b801d8b2 JF |
3520 | int i; |
3521 | ||
699ae55b | 3522 | foreach_view (view, i) |
6b161b31 | 3523 | update_view(view); |
b801d8b2 JF |
3524 | |
3525 | /* Refresh, accept single keystroke of input */ | |
6b161b31 | 3526 | key = wgetch(status_win); |
cf4d82e6 JF |
3527 | |
3528 | /* wgetch() with nodelay() enabled returns ERR when there's no | |
3529 | * input. */ | |
3530 | if (key == ERR) { | |
3531 | request = REQ_NONE; | |
8b534a13 | 3532 | continue; |
cf4d82e6 | 3533 | } |
04e2b7b2 JF |
3534 | |
3535 | request = get_keybinding(display[current_view]->keymap, key); | |
03a93dbb | 3536 | |
6706b2ba | 3537 | /* Some low-level request handling. This keeps access to |
fac7db6c JF |
3538 | * status_win restricted. */ |
3539 | switch (request) { | |
3540 | case REQ_PROMPT: | |
9e21ce5c JF |
3541 | { |
3542 | char *cmd = read_prompt(":"); | |
3543 | ||
3544 | if (cmd && string_format(opt_cmd, "git %s", cmd)) { | |
3545 | if (strncmp(cmd, "show", 4) && isspace(cmd[4])) { | |
3546 | opt_request = REQ_VIEW_DIFF; | |
3547 | } else { | |
3548 | opt_request = REQ_VIEW_PAGER; | |
3549 | } | |
3550 | break; | |
3551 | } | |
fac7db6c | 3552 | |
1d754561 | 3553 | request = REQ_NONE; |
9e21ce5c JF |
3554 | break; |
3555 | } | |
4af34daa JF |
3556 | case REQ_SEARCH: |
3557 | case REQ_SEARCH_BACK: | |
3558 | { | |
3559 | const char *prompt = request == REQ_SEARCH | |
3560 | ? "/" : "?"; | |
3561 | char *search = read_prompt(prompt); | |
3562 | ||
3563 | if (search) | |
3564 | string_copy(opt_search, search); | |
3565 | else | |
3566 | request = REQ_NONE; | |
3567 | break; | |
3568 | } | |
fac7db6c JF |
3569 | case REQ_SCREEN_RESIZE: |
3570 | { | |
3571 | int height, width; | |
3572 | ||
3573 | getmaxyx(stdscr, height, width); | |
3574 | ||
3575 | /* Resize the status view and let the view driver take | |
3576 | * care of resizing the displayed views. */ | |
3577 | wresize(status_win, 1, width); | |
3578 | mvwin(status_win, height - 1, 0); | |
3579 | wrefresh(status_win); | |
3580 | break; | |
3581 | } | |
3582 | default: | |
3583 | break; | |
03a93dbb | 3584 | } |
b801d8b2 JF |
3585 | } |
3586 | ||
3587 | quit(0); | |
3588 | ||
3589 | return 0; | |
3590 | } |