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 JF |
83 | #define TIG_LS_REMOTE \ |
84 | "git ls-remote . 2>/dev/null" | |
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. */ | |
6908bdbd JF |
513 | string_copy(opt_cmd, "git log --stat --pretty=raw"); |
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; | |
527 | ||
528 | } | |
529 | ||
afdc35b3 JF |
530 | if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8")) |
531 | opt_utf8 = FALSE; | |
532 | ||
8855ada4 | 533 | return TRUE; |
b76c2afc JF |
534 | } |
535 | ||
536 | ||
54efb62b JF |
537 | /* |
538 | * Line-oriented content detection. | |
539 | */ | |
540 | ||
2e8488b4 | 541 | #define LINE_INFO \ |
660e09ad | 542 | LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
543 | LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
544 | LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
545 | LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \ | |
660e09ad JF |
546 | LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
547 | LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
548 | LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
549 | LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
550 | LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
551 | LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
552 | LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
553 | LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
554 | LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
555 | LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
6908bdbd | 556 | LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
8855ada4 | 557 | LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
6908bdbd JF |
558 | LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
559 | LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
8855ada4 JF |
560 | LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
561 | LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
7b99a34c | 562 | LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
563 | LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \ |
564 | LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
565 | LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
8855ada4 | 566 | LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
a28bcc22 | 567 | LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
a28bcc22 | 568 | LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
d4d8de8f | 569 | LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
570 | LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \ |
571 | LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \ | |
572 | LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
6b161b31 JF |
573 | LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \ |
574 | LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \ | |
a28bcc22 JF |
575 | LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
576 | LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
577 | LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \ | |
c34d9c9f JF |
578 | LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
579 | LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \ | |
660e09ad | 580 | LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \ |
e733ee54 JF |
581 | LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \ |
582 | LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL) | |
660e09ad | 583 | |
78c70acd | 584 | enum line_type { |
2e8488b4 JF |
585 | #define LINE(type, line, fg, bg, attr) \ |
586 | LINE_##type | |
587 | LINE_INFO | |
588 | #undef LINE | |
78c70acd JF |
589 | }; |
590 | ||
591 | struct line_info { | |
660e09ad JF |
592 | const char *name; /* Option name. */ |
593 | int namelen; /* Size of option name. */ | |
4685845e | 594 | const char *line; /* The start of line to match. */ |
2e8488b4 JF |
595 | int linelen; /* Size of string to match. */ |
596 | int fg, bg, attr; /* Color and text attributes for the lines. */ | |
78c70acd JF |
597 | }; |
598 | ||
2e8488b4 | 599 | static struct line_info line_info[] = { |
78c70acd | 600 | #define LINE(type, line, fg, bg, attr) \ |
660e09ad | 601 | { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) } |
2e8488b4 JF |
602 | LINE_INFO |
603 | #undef LINE | |
78c70acd JF |
604 | }; |
605 | ||
2e8488b4 JF |
606 | static enum line_type |
607 | get_line_type(char *line) | |
78c70acd JF |
608 | { |
609 | int linelen = strlen(line); | |
a28bcc22 | 610 | enum line_type type; |
78c70acd | 611 | |
a28bcc22 | 612 | for (type = 0; type < ARRAY_SIZE(line_info); type++) |
2e8488b4 | 613 | /* Case insensitive search matches Signed-off-by lines better. */ |
a28bcc22 JF |
614 | if (linelen >= line_info[type].linelen && |
615 | !strncasecmp(line_info[type].line, line, line_info[type].linelen)) | |
616 | return type; | |
78c70acd | 617 | |
2e8488b4 | 618 | return LINE_DEFAULT; |
78c70acd JF |
619 | } |
620 | ||
2e8488b4 | 621 | static inline int |
78c70acd JF |
622 | get_line_attr(enum line_type type) |
623 | { | |
2e8488b4 JF |
624 | assert(type < ARRAY_SIZE(line_info)); |
625 | return COLOR_PAIR(type) | line_info[type].attr; | |
78c70acd JF |
626 | } |
627 | ||
660e09ad JF |
628 | static struct line_info * |
629 | get_line_info(char *name, int namelen) | |
630 | { | |
631 | enum line_type type; | |
660e09ad JF |
632 | |
633 | for (type = 0; type < ARRAY_SIZE(line_info); type++) | |
634 | if (namelen == line_info[type].namelen && | |
201f5a18 | 635 | !string_enum_compare(line_info[type].name, name, namelen)) |
660e09ad JF |
636 | return &line_info[type]; |
637 | ||
638 | return NULL; | |
639 | } | |
640 | ||
78c70acd JF |
641 | static void |
642 | init_colors(void) | |
643 | { | |
82e78006 JF |
644 | int default_bg = COLOR_BLACK; |
645 | int default_fg = COLOR_WHITE; | |
a28bcc22 | 646 | enum line_type type; |
78c70acd JF |
647 | |
648 | start_color(); | |
649 | ||
650 | if (use_default_colors() != ERR) { | |
82e78006 JF |
651 | default_bg = -1; |
652 | default_fg = -1; | |
78c70acd JF |
653 | } |
654 | ||
a28bcc22 JF |
655 | for (type = 0; type < ARRAY_SIZE(line_info); type++) { |
656 | struct line_info *info = &line_info[type]; | |
82e78006 JF |
657 | int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg; |
658 | int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg; | |
78c70acd | 659 | |
a28bcc22 | 660 | init_pair(type, fg, bg); |
78c70acd JF |
661 | } |
662 | } | |
663 | ||
fe7233c3 JF |
664 | struct line { |
665 | enum line_type type; | |
3c571d67 JF |
666 | |
667 | /* State flags */ | |
668 | unsigned int selected:1; | |
669 | ||
fe7233c3 JF |
670 | void *data; /* User data */ |
671 | }; | |
672 | ||
78c70acd | 673 | |
1899507c | 674 | /* |
37157fa0 JF |
675 | * Keys |
676 | */ | |
677 | ||
93a97d86 | 678 | struct keybinding { |
37157fa0 | 679 | int alias; |
93a97d86 | 680 | enum request request; |
04e2b7b2 | 681 | struct keybinding *next; |
37157fa0 JF |
682 | }; |
683 | ||
93a97d86 | 684 | static struct keybinding default_keybindings[] = { |
37157fa0 JF |
685 | /* View switching */ |
686 | { 'm', REQ_VIEW_MAIN }, | |
687 | { 'd', REQ_VIEW_DIFF }, | |
688 | { 'l', REQ_VIEW_LOG }, | |
e733ee54 | 689 | { 't', REQ_VIEW_TREE }, |
0001fc34 | 690 | { 'f', REQ_VIEW_BLOB }, |
37157fa0 JF |
691 | { 'p', REQ_VIEW_PAGER }, |
692 | { 'h', REQ_VIEW_HELP }, | |
37157fa0 JF |
693 | |
694 | /* View manipulation */ | |
695 | { 'q', REQ_VIEW_CLOSE }, | |
696 | { KEY_TAB, REQ_VIEW_NEXT }, | |
697 | { KEY_RETURN, REQ_ENTER }, | |
698 | { KEY_UP, REQ_PREVIOUS }, | |
699 | { KEY_DOWN, REQ_NEXT }, | |
700 | ||
701 | /* Cursor navigation */ | |
702 | { 'k', REQ_MOVE_UP }, | |
703 | { 'j', REQ_MOVE_DOWN }, | |
704 | { KEY_HOME, REQ_MOVE_FIRST_LINE }, | |
705 | { KEY_END, REQ_MOVE_LAST_LINE }, | |
706 | { KEY_NPAGE, REQ_MOVE_PAGE_DOWN }, | |
707 | { ' ', REQ_MOVE_PAGE_DOWN }, | |
708 | { KEY_PPAGE, REQ_MOVE_PAGE_UP }, | |
709 | { 'b', REQ_MOVE_PAGE_UP }, | |
710 | { '-', REQ_MOVE_PAGE_UP }, | |
711 | ||
712 | /* Scrolling */ | |
713 | { KEY_IC, REQ_SCROLL_LINE_UP }, | |
714 | { KEY_DC, REQ_SCROLL_LINE_DOWN }, | |
715 | { 'w', REQ_SCROLL_PAGE_UP }, | |
716 | { 's', REQ_SCROLL_PAGE_DOWN }, | |
717 | ||
4af34daa JF |
718 | /* Searching */ |
719 | { '/', REQ_SEARCH }, | |
720 | { '?', REQ_SEARCH_BACK }, | |
721 | { 'n', REQ_FIND_NEXT }, | |
722 | { 'N', REQ_FIND_PREV }, | |
723 | ||
37157fa0 JF |
724 | /* Misc */ |
725 | { 'Q', REQ_QUIT }, | |
726 | { 'z', REQ_STOP_LOADING }, | |
727 | { 'v', REQ_SHOW_VERSION }, | |
728 | { 'r', REQ_SCREEN_REDRAW }, | |
904e68d8 | 729 | { '.', REQ_TOGGLE_LINENO }, |
73fb51d5 | 730 | { 'g', REQ_TOGGLE_REV_GRAPH }, |
37157fa0 JF |
731 | { ':', REQ_PROMPT }, |
732 | ||
733 | /* wgetch() with nodelay() enabled returns ERR when there's no input. */ | |
1d754561 | 734 | { ERR, REQ_NONE }, |
37157fa0 | 735 | |
1d754561 | 736 | /* Using the ncurses SIGWINCH handler. */ |
37157fa0 JF |
737 | { KEY_RESIZE, REQ_SCREEN_RESIZE }, |
738 | }; | |
739 | ||
04e2b7b2 JF |
740 | #define KEYMAP_INFO \ |
741 | KEYMAP_(GENERIC), \ | |
742 | KEYMAP_(MAIN), \ | |
743 | KEYMAP_(DIFF), \ | |
744 | KEYMAP_(LOG), \ | |
e733ee54 JF |
745 | KEYMAP_(TREE), \ |
746 | KEYMAP_(BLOB), \ | |
04e2b7b2 JF |
747 | KEYMAP_(PAGER), \ |
748 | KEYMAP_(HELP) \ | |
749 | ||
750 | enum keymap { | |
751 | #define KEYMAP_(name) KEYMAP_##name | |
752 | KEYMAP_INFO | |
753 | #undef KEYMAP_ | |
754 | }; | |
755 | ||
756 | static struct int_map keymap_table[] = { | |
757 | #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name } | |
758 | KEYMAP_INFO | |
759 | #undef KEYMAP_ | |
760 | }; | |
761 | ||
762 | #define set_keymap(map, name) \ | |
763 | set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name)) | |
764 | ||
765 | static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)]; | |
766 | ||
767 | static void | |
768 | add_keybinding(enum keymap keymap, enum request request, int key) | |
769 | { | |
8b534a13 | 770 | struct keybinding *keybinding; |
04e2b7b2 | 771 | |
8b534a13 | 772 | keybinding = calloc(1, sizeof(*keybinding)); |
04e2b7b2 JF |
773 | if (!keybinding) |
774 | die("Failed to allocate keybinding"); | |
775 | ||
776 | keybinding->alias = key; | |
777 | keybinding->request = request; | |
778 | keybinding->next = keybindings[keymap]; | |
779 | keybindings[keymap] = keybinding; | |
780 | } | |
781 | ||
782 | /* Looks for a key binding first in the given map, then in the generic map, and | |
783 | * lastly in the default keybindings. */ | |
37157fa0 | 784 | static enum request |
04e2b7b2 | 785 | get_keybinding(enum keymap keymap, int key) |
37157fa0 | 786 | { |
04e2b7b2 | 787 | struct keybinding *kbd; |
37157fa0 JF |
788 | int i; |
789 | ||
04e2b7b2 JF |
790 | for (kbd = keybindings[keymap]; kbd; kbd = kbd->next) |
791 | if (kbd->alias == key) | |
792 | return kbd->request; | |
793 | ||
794 | for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next) | |
795 | if (kbd->alias == key) | |
796 | return kbd->request; | |
797 | ||
93a97d86 JF |
798 | for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) |
799 | if (default_keybindings[i].alias == key) | |
800 | return default_keybindings[i].request; | |
37157fa0 JF |
801 | |
802 | return (enum request) key; | |
803 | } | |
804 | ||
93a97d86 | 805 | |
37157fa0 JF |
806 | struct key { |
807 | char *name; | |
808 | int value; | |
809 | }; | |
810 | ||
811 | static struct key key_table[] = { | |
812 | { "Enter", KEY_RETURN }, | |
813 | { "Space", ' ' }, | |
814 | { "Backspace", KEY_BACKSPACE }, | |
815 | { "Tab", KEY_TAB }, | |
816 | { "Escape", KEY_ESC }, | |
817 | { "Left", KEY_LEFT }, | |
818 | { "Right", KEY_RIGHT }, | |
819 | { "Up", KEY_UP }, | |
820 | { "Down", KEY_DOWN }, | |
821 | { "Insert", KEY_IC }, | |
822 | { "Delete", KEY_DC }, | |
74f83ee6 | 823 | { "Hash", '#' }, |
37157fa0 JF |
824 | { "Home", KEY_HOME }, |
825 | { "End", KEY_END }, | |
826 | { "PageUp", KEY_PPAGE }, | |
827 | { "PageDown", KEY_NPAGE }, | |
828 | { "F1", KEY_F(1) }, | |
829 | { "F2", KEY_F(2) }, | |
830 | { "F3", KEY_F(3) }, | |
831 | { "F4", KEY_F(4) }, | |
832 | { "F5", KEY_F(5) }, | |
833 | { "F6", KEY_F(6) }, | |
834 | { "F7", KEY_F(7) }, | |
835 | { "F8", KEY_F(8) }, | |
836 | { "F9", KEY_F(9) }, | |
837 | { "F10", KEY_F(10) }, | |
838 | { "F11", KEY_F(11) }, | |
839 | { "F12", KEY_F(12) }, | |
840 | }; | |
841 | ||
04e2b7b2 JF |
842 | static int |
843 | get_key_value(const char *name) | |
844 | { | |
845 | int i; | |
846 | ||
847 | for (i = 0; i < ARRAY_SIZE(key_table); i++) | |
848 | if (!strcasecmp(key_table[i].name, name)) | |
849 | return key_table[i].value; | |
850 | ||
851 | if (strlen(name) == 1 && isprint(*name)) | |
852 | return (int) *name; | |
853 | ||
854 | return ERR; | |
855 | } | |
856 | ||
37157fa0 JF |
857 | static char * |
858 | get_key(enum request request) | |
859 | { | |
860 | static char buf[BUFSIZ]; | |
861 | static char key_char[] = "'X'"; | |
d65ced0d | 862 | size_t pos = 0; |
37157fa0 JF |
863 | char *sep = " "; |
864 | int i; | |
865 | ||
866 | buf[pos] = 0; | |
867 | ||
93a97d86 JF |
868 | for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) { |
869 | struct keybinding *keybinding = &default_keybindings[i]; | |
37157fa0 JF |
870 | char *seq = NULL; |
871 | int key; | |
872 | ||
93a97d86 | 873 | if (keybinding->request != request) |
37157fa0 JF |
874 | continue; |
875 | ||
876 | for (key = 0; key < ARRAY_SIZE(key_table); key++) | |
93a97d86 | 877 | if (key_table[key].value == keybinding->alias) |
37157fa0 JF |
878 | seq = key_table[key].name; |
879 | ||
880 | if (seq == NULL && | |
93a97d86 JF |
881 | keybinding->alias < 127 && |
882 | isprint(keybinding->alias)) { | |
883 | key_char[1] = (char) keybinding->alias; | |
37157fa0 JF |
884 | seq = key_char; |
885 | } | |
886 | ||
887 | if (!seq) | |
888 | seq = "'?'"; | |
889 | ||
890 | if (!string_format_from(buf, &pos, "%s%s", sep, seq)) | |
891 | return "Too many keybindings!"; | |
892 | sep = ", "; | |
893 | } | |
894 | ||
895 | return buf; | |
896 | } | |
897 | ||
898 | ||
899 | /* | |
1899507c JF |
900 | * User config file handling. |
901 | */ | |
902 | ||
5dc795f2 JF |
903 | static struct int_map color_map[] = { |
904 | #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name } | |
905 | COLOR_MAP(DEFAULT), | |
906 | COLOR_MAP(BLACK), | |
907 | COLOR_MAP(BLUE), | |
908 | COLOR_MAP(CYAN), | |
909 | COLOR_MAP(GREEN), | |
910 | COLOR_MAP(MAGENTA), | |
911 | COLOR_MAP(RED), | |
912 | COLOR_MAP(WHITE), | |
913 | COLOR_MAP(YELLOW), | |
914 | }; | |
915 | ||
9256ab05 JF |
916 | #define set_color(color, name) \ |
917 | set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name)) | |
660e09ad | 918 | |
5dc795f2 JF |
919 | static struct int_map attr_map[] = { |
920 | #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name } | |
921 | ATTR_MAP(NORMAL), | |
922 | ATTR_MAP(BLINK), | |
923 | ATTR_MAP(BOLD), | |
924 | ATTR_MAP(DIM), | |
925 | ATTR_MAP(REVERSE), | |
926 | ATTR_MAP(STANDOUT), | |
927 | ATTR_MAP(UNDERLINE), | |
928 | }; | |
929 | ||
9256ab05 JF |
930 | #define set_attribute(attr, name) \ |
931 | set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name)) | |
660e09ad | 932 | |
3c3801c2 JF |
933 | static int config_lineno; |
934 | static bool config_errors; | |
935 | static char *config_msg; | |
936 | ||
5bfd96c7 | 937 | /* Wants: object fgcolor bgcolor [attr] */ |
660e09ad | 938 | static int |
5bfd96c7 | 939 | option_color_command(int argc, char *argv[]) |
660e09ad | 940 | { |
bca8fcaa JF |
941 | struct line_info *info; |
942 | ||
9256ab05 JF |
943 | if (argc != 3 && argc != 4) { |
944 | config_msg = "Wrong number of arguments given to color command"; | |
945 | return ERR; | |
946 | } | |
947 | ||
948 | info = get_line_info(argv[0], strlen(argv[0])); | |
bca8fcaa JF |
949 | if (!info) { |
950 | config_msg = "Unknown color name"; | |
951 | return ERR; | |
952 | } | |
660e09ad | 953 | |
a3653368 JF |
954 | if (set_color(&info->fg, argv[1]) == ERR || |
955 | set_color(&info->bg, argv[2]) == ERR) { | |
bca8fcaa JF |
956 | config_msg = "Unknown color"; |
957 | return ERR; | |
958 | } | |
660e09ad | 959 | |
9256ab05 | 960 | if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) { |
bca8fcaa JF |
961 | config_msg = "Unknown attribute"; |
962 | return ERR; | |
660e09ad JF |
963 | } |
964 | ||
bca8fcaa JF |
965 | return OK; |
966 | } | |
967 | ||
5bfd96c7 JF |
968 | /* Wants: name = value */ |
969 | static int | |
970 | option_set_command(int argc, char *argv[]) | |
971 | { | |
972 | if (argc != 3) { | |
973 | config_msg = "Wrong number of arguments given to set command"; | |
974 | return ERR; | |
975 | } | |
976 | ||
977 | if (strcmp(argv[1], "=")) { | |
978 | config_msg = "No value assigned"; | |
979 | return ERR; | |
980 | } | |
981 | ||
982 | if (!strcmp(argv[0], "show-rev-graph")) { | |
983 | opt_rev_graph = (!strcmp(argv[2], "1") || | |
984 | !strcmp(argv[2], "true") || | |
985 | !strcmp(argv[2], "yes")); | |
986 | return OK; | |
987 | } | |
988 | ||
989 | if (!strcmp(argv[0], "line-number-interval")) { | |
990 | opt_num_interval = atoi(argv[2]); | |
991 | return OK; | |
992 | } | |
993 | ||
994 | if (!strcmp(argv[0], "tab-size")) { | |
995 | opt_tab_size = atoi(argv[2]); | |
996 | return OK; | |
997 | } | |
998 | ||
cb7267ee | 999 | if (!strcmp(argv[0], "commit-encoding")) { |
3cc9a4d4 JF |
1000 | char *arg = argv[2]; |
1001 | int delimiter = *arg; | |
1002 | int i; | |
1003 | ||
1004 | switch (delimiter) { | |
1005 | case '"': | |
1006 | case '\'': | |
1007 | for (arg++, i = 0; arg[i]; i++) | |
1008 | if (arg[i] == delimiter) { | |
1009 | arg[i] = 0; | |
1010 | break; | |
1011 | } | |
1012 | default: | |
1013 | string_copy(opt_encoding, arg); | |
1014 | return OK; | |
1015 | } | |
5bfd96c7 JF |
1016 | } |
1017 | ||
a3653368 | 1018 | config_msg = "Unknown variable name"; |
5bfd96c7 JF |
1019 | return ERR; |
1020 | } | |
1021 | ||
04e2b7b2 JF |
1022 | /* Wants: mode request key */ |
1023 | static int | |
1024 | option_bind_command(int argc, char *argv[]) | |
1025 | { | |
1026 | enum request request; | |
1027 | int keymap; | |
1028 | int key; | |
1029 | ||
1030 | if (argc != 3) { | |
1031 | config_msg = "Wrong number of arguments given to bind command"; | |
1032 | return ERR; | |
1033 | } | |
1034 | ||
1035 | if (set_keymap(&keymap, argv[0]) == ERR) { | |
1036 | config_msg = "Unknown key map"; | |
1037 | return ERR; | |
1038 | } | |
1039 | ||
1040 | key = get_key_value(argv[1]); | |
1041 | if (key == ERR) { | |
1042 | config_msg = "Unknown key"; | |
1043 | return ERR; | |
1044 | } | |
1045 | ||
1046 | request = get_request(argv[2]); | |
1047 | if (request == REQ_UNKNOWN) { | |
1048 | config_msg = "Unknown request name"; | |
1049 | return ERR; | |
1050 | } | |
1051 | ||
1052 | add_keybinding(keymap, request, key); | |
1053 | ||
1054 | return OK; | |
1055 | } | |
1056 | ||
bca8fcaa | 1057 | static int |
9256ab05 | 1058 | set_option(char *opt, char *value) |
bca8fcaa | 1059 | { |
9256ab05 JF |
1060 | char *argv[16]; |
1061 | int valuelen; | |
1062 | int argc = 0; | |
1063 | ||
1064 | /* Tokenize */ | |
1065 | while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) { | |
1066 | argv[argc++] = value; | |
1067 | ||
1068 | value += valuelen; | |
1069 | if (!*value) | |
1070 | break; | |
1071 | ||
1072 | *value++ = 0; | |
1073 | while (isspace(*value)) | |
1074 | value++; | |
1075 | } | |
1076 | ||
1077 | if (!strcmp(opt, "color")) | |
5bfd96c7 JF |
1078 | return option_color_command(argc, argv); |
1079 | ||
1080 | if (!strcmp(opt, "set")) | |
1081 | return option_set_command(argc, argv); | |
bca8fcaa | 1082 | |
04e2b7b2 JF |
1083 | if (!strcmp(opt, "bind")) |
1084 | return option_bind_command(argc, argv); | |
1085 | ||
a3653368 | 1086 | config_msg = "Unknown option command"; |
660e09ad JF |
1087 | return ERR; |
1088 | } | |
1089 | ||
1090 | static int | |
3c3801c2 JF |
1091 | read_option(char *opt, int optlen, char *value, int valuelen) |
1092 | { | |
a3653368 JF |
1093 | int status = OK; |
1094 | ||
3c3801c2 JF |
1095 | config_lineno++; |
1096 | config_msg = "Internal error"; | |
1097 | ||
a3653368 JF |
1098 | /* Check for comment markers, since read_properties() will |
1099 | * only ensure opt and value are split at first " \t". */ | |
74f83ee6 | 1100 | optlen = strcspn(opt, "#"); |
a3653368 | 1101 | if (optlen == 0) |
3c3801c2 JF |
1102 | return OK; |
1103 | ||
a3653368 JF |
1104 | if (opt[optlen] != 0) { |
1105 | config_msg = "No option value"; | |
1106 | status = ERR; | |
1107 | ||
1108 | } else { | |
1109 | /* Look for comment endings in the value. */ | |
74f83ee6 | 1110 | int len = strcspn(value, "#"); |
a3653368 JF |
1111 | |
1112 | if (len < valuelen) { | |
1113 | valuelen = len; | |
1114 | value[valuelen] = 0; | |
1115 | } | |
1116 | ||
1117 | status = set_option(opt, value); | |
3c3801c2 JF |
1118 | } |
1119 | ||
a3653368 JF |
1120 | if (status == ERR) { |
1121 | fprintf(stderr, "Error on line %d, near '%.*s': %s\n", | |
3c3801c2 JF |
1122 | config_lineno, optlen, opt, config_msg); |
1123 | config_errors = TRUE; | |
1124 | } | |
1125 | ||
1126 | /* Always keep going if errors are encountered. */ | |
1127 | return OK; | |
1128 | } | |
1129 | ||
1130 | static int | |
660e09ad JF |
1131 | load_options(void) |
1132 | { | |
1133 | char *home = getenv("HOME"); | |
17482b11 | 1134 | char buf[SIZEOF_STR]; |
660e09ad JF |
1135 | FILE *file; |
1136 | ||
3c3801c2 JF |
1137 | config_lineno = 0; |
1138 | config_errors = FALSE; | |
1139 | ||
cc2d1364 | 1140 | if (!home || !string_format(buf, "%s/.tigrc", home)) |
660e09ad JF |
1141 | return ERR; |
1142 | ||
1143 | /* It's ok that the file doesn't exist. */ | |
1144 | file = fopen(buf, "r"); | |
1145 | if (!file) | |
1146 | return OK; | |
1147 | ||
3c3801c2 JF |
1148 | if (read_properties(file, " \t", read_option) == ERR || |
1149 | config_errors == TRUE) | |
1150 | fprintf(stderr, "Errors while loading %s.\n", buf); | |
1151 | ||
1152 | return OK; | |
660e09ad JF |
1153 | } |
1154 | ||
1155 | ||
d839253b | 1156 | /* |
468876c9 | 1157 | * The viewer |
d839253b | 1158 | */ |
c2124ccd JF |
1159 | |
1160 | struct view; | |
fe7233c3 | 1161 | struct view_ops; |
c2124ccd JF |
1162 | |
1163 | /* The display array of active views and the index of the current view. */ | |
1164 | static struct view *display[2]; | |
1165 | static unsigned int current_view; | |
1166 | ||
ab4af23e JF |
1167 | /* Reading from the prompt? */ |
1168 | static bool input_mode = FALSE; | |
1169 | ||
33c4f9ea | 1170 | #define foreach_displayed_view(view, i) \ |
c2124ccd JF |
1171 | for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++) |
1172 | ||
9f41488f | 1173 | #define displayed_views() (display[1] != NULL ? 2 : 1) |
c2124ccd | 1174 | |
d839253b | 1175 | /* Current head and commit ID */ |
e733ee54 | 1176 | static char ref_blob[SIZEOF_REF] = ""; |
c2124ccd JF |
1177 | static char ref_commit[SIZEOF_REF] = "HEAD"; |
1178 | static char ref_head[SIZEOF_REF] = "HEAD"; | |
1179 | ||
b801d8b2 | 1180 | struct view { |
03a93dbb | 1181 | const char *name; /* View name */ |
4685845e TH |
1182 | const char *cmd_fmt; /* Default command line format */ |
1183 | const char *cmd_env; /* Command line set via environment */ | |
e733ee54 | 1184 | const char *id; /* Points to either of ref_{head,commit,blob} */ |
6b161b31 | 1185 | |
fe7233c3 | 1186 | struct view_ops *ops; /* View operations */ |
22f66b0a | 1187 | |
04e2b7b2 JF |
1188 | enum keymap keymap; /* What keymap does this view have */ |
1189 | ||
17482b11 | 1190 | char cmd[SIZEOF_STR]; /* Command buffer */ |
49f2b43f JF |
1191 | char ref[SIZEOF_REF]; /* Hovered commit reference */ |
1192 | char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */ | |
2e8488b4 | 1193 | |
8855ada4 JF |
1194 | int height, width; /* The width and height of the main window */ |
1195 | WINDOW *win; /* The main window */ | |
1196 | WINDOW *title; /* The title window living below the main window */ | |
b801d8b2 JF |
1197 | |
1198 | /* Navigation */ | |
1199 | unsigned long offset; /* Offset of the window top */ | |
1200 | unsigned long lineno; /* Current line number */ | |
1201 | ||
4af34daa JF |
1202 | /* Searching */ |
1203 | char grep[SIZEOF_STR]; /* Search string */ | |
b77b2cb8 | 1204 | regex_t *regex; /* Pre-compiled regex */ |
4af34daa | 1205 | |
f6da0b66 JF |
1206 | /* If non-NULL, points to the view that opened this view. If this view |
1207 | * is closed tig will switch back to the parent view. */ | |
1208 | struct view *parent; | |
1209 | ||
b801d8b2 JF |
1210 | /* Buffering */ |
1211 | unsigned long lines; /* Total number of lines */ | |
fe7233c3 | 1212 | struct line *line; /* Line index */ |
e2c01617 | 1213 | unsigned long line_size;/* Total number of allocated lines */ |
8855ada4 | 1214 | unsigned int digits; /* Number of digits in the lines member. */ |
b801d8b2 JF |
1215 | |
1216 | /* Loading */ | |
1217 | FILE *pipe; | |
2e8488b4 | 1218 | time_t start_time; |
b801d8b2 JF |
1219 | }; |
1220 | ||
fe7233c3 JF |
1221 | struct view_ops { |
1222 | /* What type of content being displayed. Used in the title bar. */ | |
1223 | const char *type; | |
1224 | /* Draw one line; @lineno must be < view->height. */ | |
5dcf8064 | 1225 | bool (*draw)(struct view *view, struct line *line, unsigned int lineno, bool selected); |
fe7233c3 | 1226 | /* Read one line; updates view->line. */ |
701e4f5d | 1227 | bool (*read)(struct view *view, char *data); |
fe7233c3 JF |
1228 | /* Depending on view, change display based on current line. */ |
1229 | bool (*enter)(struct view *view, struct line *line); | |
4af34daa JF |
1230 | /* Search for regex in a line. */ |
1231 | bool (*grep)(struct view *view, struct line *line); | |
d720de4b JF |
1232 | /* Select line */ |
1233 | void (*select)(struct view *view, struct line *line); | |
fe7233c3 JF |
1234 | }; |
1235 | ||
6b161b31 JF |
1236 | static struct view_ops pager_ops; |
1237 | static struct view_ops main_ops; | |
e733ee54 JF |
1238 | static struct view_ops tree_ops; |
1239 | static struct view_ops blob_ops; | |
a28bcc22 | 1240 | |
04e2b7b2 JF |
1241 | #define VIEW_STR(name, cmd, env, ref, ops, map) \ |
1242 | { name, cmd, #env, ref, ops, map} | |
1ba2ae4b | 1243 | |
95d7ddcd | 1244 | #define VIEW_(id, name, ops, ref) \ |
04e2b7b2 | 1245 | VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id) |
1ba2ae4b | 1246 | |
c2124ccd | 1247 | |
b801d8b2 | 1248 | static struct view views[] = { |
95d7ddcd JF |
1249 | VIEW_(MAIN, "main", &main_ops, ref_head), |
1250 | VIEW_(DIFF, "diff", &pager_ops, ref_commit), | |
1251 | VIEW_(LOG, "log", &pager_ops, ref_head), | |
e733ee54 JF |
1252 | VIEW_(TREE, "tree", &tree_ops, ref_commit), |
1253 | VIEW_(BLOB, "blob", &blob_ops, ref_blob), | |
95d7ddcd JF |
1254 | VIEW_(HELP, "help", &pager_ops, "static"), |
1255 | VIEW_(PAGER, "pager", &pager_ops, "static"), | |
b801d8b2 JF |
1256 | }; |
1257 | ||
a28bcc22 JF |
1258 | #define VIEW(req) (&views[(req) - REQ_OFFSET - 1]) |
1259 | ||
699ae55b JF |
1260 | #define foreach_view(view, i) \ |
1261 | for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++) | |
1262 | ||
1263 | #define view_is_displayed(view) \ | |
1264 | (view == display[0] || view == display[1]) | |
4c6fabc2 | 1265 | |
fe7233c3 JF |
1266 | static bool |
1267 | draw_view_line(struct view *view, unsigned int lineno) | |
1268 | { | |
d720de4b | 1269 | struct line *line; |
5dcf8064 | 1270 | bool selected = (view->offset + lineno == view->lineno); |
4887d44e | 1271 | bool draw_ok; |
d720de4b | 1272 | |
699ae55b JF |
1273 | assert(view_is_displayed(view)); |
1274 | ||
fe7233c3 JF |
1275 | if (view->offset + lineno >= view->lines) |
1276 | return FALSE; | |
1277 | ||
d720de4b JF |
1278 | line = &view->line[view->offset + lineno]; |
1279 | ||
3c571d67 JF |
1280 | if (selected) { |
1281 | line->selected = TRUE; | |
d720de4b | 1282 | view->ops->select(view, line); |
3c571d67 JF |
1283 | } else if (line->selected) { |
1284 | line->selected = FALSE; | |
1285 | wmove(view->win, lineno, 0); | |
1286 | wclrtoeol(view->win); | |
1287 | } | |
d720de4b | 1288 | |
4887d44e JF |
1289 | scrollok(view->win, FALSE); |
1290 | draw_ok = view->ops->draw(view, line, lineno, selected); | |
1291 | scrollok(view->win, TRUE); | |
1292 | ||
1293 | return draw_ok; | |
fe7233c3 JF |
1294 | } |
1295 | ||
b801d8b2 | 1296 | static void |
82e78006 | 1297 | redraw_view_from(struct view *view, int lineno) |
b801d8b2 | 1298 | { |
82e78006 | 1299 | assert(0 <= lineno && lineno < view->height); |
b801d8b2 | 1300 | |
82e78006 | 1301 | for (; lineno < view->height; lineno++) { |
fe7233c3 | 1302 | if (!draw_view_line(view, lineno)) |
fd85fef1 | 1303 | break; |
b801d8b2 JF |
1304 | } |
1305 | ||
1306 | redrawwin(view->win); | |
ab4af23e JF |
1307 | if (input_mode) |
1308 | wnoutrefresh(view->win); | |
1309 | else | |
1310 | wrefresh(view->win); | |
b801d8b2 JF |
1311 | } |
1312 | ||
b76c2afc | 1313 | static void |
82e78006 JF |
1314 | redraw_view(struct view *view) |
1315 | { | |
1316 | wclear(view->win); | |
1317 | redraw_view_from(view, 0); | |
1318 | } | |
1319 | ||
c2124ccd | 1320 | |
6b161b31 | 1321 | static void |
81030ec8 JF |
1322 | update_view_title(struct view *view) |
1323 | { | |
3c112a88 | 1324 | char buf[SIZEOF_STR]; |
71d1c7db JF |
1325 | char state[SIZEOF_STR]; |
1326 | size_t bufpos = 0, statelen = 0; | |
81030ec8 | 1327 | |
3c112a88 | 1328 | assert(view_is_displayed(view)); |
81030ec8 | 1329 | |
c19f8017 | 1330 | if (view->lines || view->pipe) { |
6d9c07af | 1331 | unsigned int view_lines = view->offset + view->height; |
c19f8017 | 1332 | unsigned int lines = view->lines |
6d9c07af | 1333 | ? MIN(view_lines, view->lines) * 100 / view->lines |
c19f8017 JF |
1334 | : 0; |
1335 | ||
71d1c7db | 1336 | string_format_from(state, &statelen, "- %s %d of %d (%d%%)", |
3c112a88 JF |
1337 | view->ops->type, |
1338 | view->lineno + 1, | |
1339 | view->lines, | |
1340 | lines); | |
81030ec8 | 1341 | |
5becf244 JF |
1342 | if (view->pipe) { |
1343 | time_t secs = time(NULL) - view->start_time; | |
f97f4012 | 1344 | |
5becf244 JF |
1345 | /* Three git seconds are a long time ... */ |
1346 | if (secs > 2) | |
71d1c7db | 1347 | string_format_from(state, &statelen, " %lds", secs); |
5becf244 | 1348 | } |
f97f4012 JF |
1349 | } |
1350 | ||
71d1c7db JF |
1351 | string_format_from(buf, &bufpos, "[%s]", view->name); |
1352 | if (*view->ref && bufpos < view->width) { | |
1353 | size_t refsize = strlen(view->ref); | |
1354 | size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen; | |
1355 | ||
1356 | if (minsize < view->width) | |
1357 | refsize = view->width - minsize + 7; | |
1358 | string_format_from(buf, &bufpos, " %.*s", refsize, view->ref); | |
1359 | } | |
1360 | ||
1361 | if (statelen && bufpos < view->width) { | |
1362 | string_format_from(buf, &bufpos, " %s", state); | |
1363 | } | |
1364 | ||
3c112a88 JF |
1365 | if (view == display[current_view]) |
1366 | wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS)); | |
1367 | else | |
1368 | wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR)); | |
1369 | ||
3c112a88 | 1370 | mvwaddnstr(view->title, 0, 0, buf, bufpos); |
390a8262 | 1371 | wclrtoeol(view->title); |
976447f8 | 1372 | wmove(view->title, 0, view->width - 1); |
ab4af23e JF |
1373 | |
1374 | if (input_mode) | |
1375 | wnoutrefresh(view->title); | |
1376 | else | |
1377 | wrefresh(view->title); | |
81030ec8 JF |
1378 | } |
1379 | ||
1380 | static void | |
6b161b31 | 1381 | resize_display(void) |
b76c2afc | 1382 | { |
03a93dbb | 1383 | int offset, i; |
6b161b31 JF |
1384 | struct view *base = display[0]; |
1385 | struct view *view = display[1] ? display[1] : display[0]; | |
b76c2afc | 1386 | |
6b161b31 | 1387 | /* Setup window dimensions */ |
b76c2afc | 1388 | |
03a93dbb | 1389 | getmaxyx(stdscr, base->height, base->width); |
b76c2afc | 1390 | |
6b161b31 | 1391 | /* Make room for the status window. */ |
03a93dbb | 1392 | base->height -= 1; |
6b161b31 JF |
1393 | |
1394 | if (view != base) { | |
03a93dbb JF |
1395 | /* Horizontal split. */ |
1396 | view->width = base->width; | |
6b161b31 JF |
1397 | view->height = SCALE_SPLIT_VIEW(base->height); |
1398 | base->height -= view->height; | |
1399 | ||
1400 | /* Make room for the title bar. */ | |
1401 | view->height -= 1; | |
1402 | } | |
1403 | ||
1404 | /* Make room for the title bar. */ | |
1405 | base->height -= 1; | |
1406 | ||
1407 | offset = 0; | |
1408 | ||
33c4f9ea | 1409 | foreach_displayed_view (view, i) { |
b76c2afc | 1410 | if (!view->win) { |
c19f8017 | 1411 | view->win = newwin(view->height, 0, offset, 0); |
6b161b31 JF |
1412 | if (!view->win) |
1413 | die("Failed to create %s view", view->name); | |
1414 | ||
1415 | scrollok(view->win, TRUE); | |
1416 | ||
1417 | view->title = newwin(1, 0, offset + view->height, 0); | |
1418 | if (!view->title) | |
1419 | die("Failed to create title window"); | |
1420 | ||
1421 | } else { | |
c19f8017 | 1422 | wresize(view->win, view->height, view->width); |
6b161b31 JF |
1423 | mvwin(view->win, offset, 0); |
1424 | mvwin(view->title, offset + view->height, 0); | |
a28bcc22 | 1425 | } |
a28bcc22 | 1426 | |
6b161b31 | 1427 | offset += view->height + 1; |
b76c2afc | 1428 | } |
6b161b31 | 1429 | } |
b76c2afc | 1430 | |
6b161b31 | 1431 | static void |
20bb5e18 JF |
1432 | redraw_display(void) |
1433 | { | |
1434 | struct view *view; | |
1435 | int i; | |
1436 | ||
33c4f9ea | 1437 | foreach_displayed_view (view, i) { |
20bb5e18 JF |
1438 | redraw_view(view); |
1439 | update_view_title(view); | |
1440 | } | |
1441 | } | |
1442 | ||
85af6284 | 1443 | static void |
2bee3bde | 1444 | update_display_cursor(struct view *view) |
85af6284 | 1445 | { |
85af6284 JF |
1446 | /* Move the cursor to the right-most column of the cursor line. |
1447 | * | |
1448 | * XXX: This could turn out to be a bit expensive, but it ensures that | |
1449 | * the cursor does not jump around. */ | |
1450 | if (view->lines) { | |
1451 | wmove(view->win, view->lineno - view->offset, view->width - 1); | |
1452 | wrefresh(view->win); | |
1453 | } | |
1454 | } | |
20bb5e18 | 1455 | |
2e8488b4 JF |
1456 | /* |
1457 | * Navigation | |
1458 | */ | |
1459 | ||
4a2909a7 | 1460 | /* Scrolling backend */ |
b801d8b2 | 1461 | static void |
8c317212 | 1462 | do_scroll_view(struct view *view, int lines) |
b801d8b2 | 1463 | { |
a0087dd5 JF |
1464 | bool redraw_current_line = FALSE; |
1465 | ||
fd85fef1 JF |
1466 | /* The rendering expects the new offset. */ |
1467 | view->offset += lines; | |
1468 | ||
1469 | assert(0 <= view->offset && view->offset < view->lines); | |
1470 | assert(lines); | |
b801d8b2 | 1471 | |
a0087dd5 JF |
1472 | /* Move current line into the view. */ |
1473 | if (view->lineno < view->offset) { | |
1474 | view->lineno = view->offset; | |
1475 | redraw_current_line = TRUE; | |
1476 | } else if (view->lineno >= view->offset + view->height) { | |
1477 | view->lineno = view->offset + view->height - 1; | |
1478 | redraw_current_line = TRUE; | |
1479 | } | |
1480 | ||
1481 | assert(view->offset <= view->lineno && view->lineno < view->lines); | |
1482 | ||
82e78006 | 1483 | /* Redraw the whole screen if scrolling is pointless. */ |
4c6fabc2 | 1484 | if (view->height < ABS(lines)) { |
b76c2afc JF |
1485 | redraw_view(view); |
1486 | ||
1487 | } else { | |
22f66b0a | 1488 | int line = lines > 0 ? view->height - lines : 0; |
82e78006 | 1489 | int end = line + ABS(lines); |
fd85fef1 JF |
1490 | |
1491 | wscrl(view->win, lines); | |
1492 | ||
22f66b0a | 1493 | for (; line < end; line++) { |
fe7233c3 | 1494 | if (!draw_view_line(view, line)) |
fd85fef1 JF |
1495 | break; |
1496 | } | |
fd85fef1 | 1497 | |
a0087dd5 JF |
1498 | if (redraw_current_line) |
1499 | draw_view_line(view, view->lineno - view->offset); | |
fd85fef1 JF |
1500 | } |
1501 | ||
fd85fef1 JF |
1502 | redrawwin(view->win); |
1503 | wrefresh(view->win); | |
9d3f5834 | 1504 | report(""); |
fd85fef1 | 1505 | } |
78c70acd | 1506 | |
4a2909a7 | 1507 | /* Scroll frontend */ |
fd85fef1 | 1508 | static void |
6b161b31 | 1509 | scroll_view(struct view *view, enum request request) |
fd85fef1 JF |
1510 | { |
1511 | int lines = 1; | |
b801d8b2 | 1512 | |
8c317212 JF |
1513 | assert(view_is_displayed(view)); |
1514 | ||
b801d8b2 | 1515 | switch (request) { |
4a2909a7 | 1516 | case REQ_SCROLL_PAGE_DOWN: |
fd85fef1 | 1517 | lines = view->height; |
4a2909a7 | 1518 | case REQ_SCROLL_LINE_DOWN: |
b801d8b2 | 1519 | if (view->offset + lines > view->lines) |
bde3653a | 1520 | lines = view->lines - view->offset; |
b801d8b2 | 1521 | |
fd85fef1 | 1522 | if (lines == 0 || view->offset + view->height >= view->lines) { |
eb98559e | 1523 | report("Cannot scroll beyond the last line"); |
b801d8b2 JF |
1524 | return; |
1525 | } | |
1526 | break; | |
1527 | ||
4a2909a7 | 1528 | case REQ_SCROLL_PAGE_UP: |
fd85fef1 | 1529 | lines = view->height; |
4a2909a7 | 1530 | case REQ_SCROLL_LINE_UP: |
b801d8b2 JF |
1531 | if (lines > view->offset) |
1532 | lines = view->offset; | |
1533 | ||
1534 | if (lines == 0) { | |
eb98559e | 1535 | report("Cannot scroll beyond the first line"); |
b801d8b2 JF |
1536 | return; |
1537 | } | |
1538 | ||
fd85fef1 | 1539 | lines = -lines; |
b801d8b2 | 1540 | break; |
03a93dbb | 1541 | |
6b161b31 JF |
1542 | default: |
1543 | die("request %d not handled in switch", request); | |
b801d8b2 JF |
1544 | } |
1545 | ||
8c317212 | 1546 | do_scroll_view(view, lines); |
fd85fef1 | 1547 | } |
b801d8b2 | 1548 | |
4a2909a7 | 1549 | /* Cursor moving */ |
fd85fef1 | 1550 | static void |
8522ecc7 | 1551 | move_view(struct view *view, enum request request) |
fd85fef1 | 1552 | { |
dfaa6c81 | 1553 | int scroll_steps = 0; |
fd85fef1 | 1554 | int steps; |
b801d8b2 | 1555 | |
fd85fef1 | 1556 | switch (request) { |
4a2909a7 | 1557 | case REQ_MOVE_FIRST_LINE: |
78c70acd JF |
1558 | steps = -view->lineno; |
1559 | break; | |
1560 | ||
4a2909a7 | 1561 | case REQ_MOVE_LAST_LINE: |
78c70acd JF |
1562 | steps = view->lines - view->lineno - 1; |
1563 | break; | |
1564 | ||
4a2909a7 | 1565 | case REQ_MOVE_PAGE_UP: |
78c70acd JF |
1566 | steps = view->height > view->lineno |
1567 | ? -view->lineno : -view->height; | |
1568 | break; | |
1569 | ||
4a2909a7 | 1570 | case REQ_MOVE_PAGE_DOWN: |
78c70acd JF |
1571 | steps = view->lineno + view->height >= view->lines |
1572 | ? view->lines - view->lineno - 1 : view->height; | |
1573 | break; | |
1574 | ||
4a2909a7 | 1575 | case REQ_MOVE_UP: |
fd85fef1 JF |
1576 | steps = -1; |
1577 | break; | |
b801d8b2 | 1578 | |
4a2909a7 | 1579 | case REQ_MOVE_DOWN: |
fd85fef1 JF |
1580 | steps = 1; |
1581 | break; | |
6b161b31 JF |
1582 | |
1583 | default: | |
1584 | die("request %d not handled in switch", request); | |
78c70acd | 1585 | } |
b801d8b2 | 1586 | |
4c6fabc2 | 1587 | if (steps <= 0 && view->lineno == 0) { |
eb98559e | 1588 | report("Cannot move beyond the first line"); |
78c70acd | 1589 | return; |
b801d8b2 | 1590 | |
6908bdbd | 1591 | } else if (steps >= 0 && view->lineno + 1 >= view->lines) { |
eb98559e | 1592 | report("Cannot move beyond the last line"); |
78c70acd | 1593 | return; |
fd85fef1 JF |
1594 | } |
1595 | ||
4c6fabc2 | 1596 | /* Move the current line */ |
fd85fef1 | 1597 | view->lineno += steps; |
4c6fabc2 JF |
1598 | assert(0 <= view->lineno && view->lineno < view->lines); |
1599 | ||
4c6fabc2 | 1600 | /* Check whether the view needs to be scrolled */ |
fd85fef1 JF |
1601 | if (view->lineno < view->offset || |
1602 | view->lineno >= view->offset + view->height) { | |
dfaa6c81 | 1603 | scroll_steps = steps; |
fd85fef1 | 1604 | if (steps < 0 && -steps > view->offset) { |
dfaa6c81 | 1605 | scroll_steps = -view->offset; |
b76c2afc JF |
1606 | |
1607 | } else if (steps > 0) { | |
1608 | if (view->lineno == view->lines - 1 && | |
1609 | view->lines > view->height) { | |
dfaa6c81 JF |
1610 | scroll_steps = view->lines - view->offset - 1; |
1611 | if (scroll_steps >= view->height) | |
1612 | scroll_steps -= view->height - 1; | |
b76c2afc | 1613 | } |
b801d8b2 | 1614 | } |
8522ecc7 JF |
1615 | } |
1616 | ||
1617 | if (!view_is_displayed(view)) { | |
1618 | view->offset += steps; | |
1619 | view->ops->select(view, &view->line[view->lineno]); | |
1620 | return; | |
1621 | } | |
1622 | ||
1623 | /* Repaint the old "current" line if we be scrolling */ | |
1624 | if (ABS(steps) < view->height) | |
1625 | draw_view_line(view, view->lineno - steps - view->offset); | |
1626 | ||
dfaa6c81 JF |
1627 | if (scroll_steps) { |
1628 | do_scroll_view(view, scroll_steps); | |
fd85fef1 | 1629 | return; |
b801d8b2 JF |
1630 | } |
1631 | ||
4c6fabc2 | 1632 | /* Draw the current line */ |
fe7233c3 | 1633 | draw_view_line(view, view->lineno - view->offset); |
fd85fef1 | 1634 | |
b801d8b2 JF |
1635 | redrawwin(view->win); |
1636 | wrefresh(view->win); | |
9d3f5834 | 1637 | report(""); |
b801d8b2 JF |
1638 | } |
1639 | ||
b801d8b2 | 1640 | |
2e8488b4 | 1641 | /* |
4af34daa JF |
1642 | * Searching |
1643 | */ | |
1644 | ||
c02d8fce | 1645 | static void search_view(struct view *view, enum request request); |
4af34daa JF |
1646 | |
1647 | static bool | |
1648 | find_next_line(struct view *view, unsigned long lineno, struct line *line) | |
1649 | { | |
699ae55b JF |
1650 | assert(view_is_displayed(view)); |
1651 | ||
4af34daa JF |
1652 | if (!view->ops->grep(view, line)) |
1653 | return FALSE; | |
1654 | ||
1655 | if (lineno - view->offset >= view->height) { | |
1656 | view->offset = lineno; | |
1657 | view->lineno = lineno; | |
1658 | redraw_view(view); | |
1659 | ||
1660 | } else { | |
1661 | unsigned long old_lineno = view->lineno - view->offset; | |
1662 | ||
1663 | view->lineno = lineno; | |
4af34daa JF |
1664 | draw_view_line(view, old_lineno); |
1665 | ||
1666 | draw_view_line(view, view->lineno - view->offset); | |
1667 | redrawwin(view->win); | |
1668 | wrefresh(view->win); | |
1669 | } | |
1670 | ||
1671 | report("Line %ld matches '%s'", lineno + 1, view->grep); | |
1672 | return TRUE; | |
1673 | } | |
1674 | ||
1675 | static void | |
1676 | find_next(struct view *view, enum request request) | |
1677 | { | |
1678 | unsigned long lineno = view->lineno; | |
1679 | int direction; | |
1680 | ||
1681 | if (!*view->grep) { | |
1682 | if (!*opt_search) | |
1683 | report("No previous search"); | |
1684 | else | |
c02d8fce | 1685 | search_view(view, request); |
4af34daa JF |
1686 | return; |
1687 | } | |
1688 | ||
1689 | switch (request) { | |
1690 | case REQ_SEARCH: | |
1691 | case REQ_FIND_NEXT: | |
1692 | direction = 1; | |
1693 | break; | |
1694 | ||
1695 | case REQ_SEARCH_BACK: | |
1696 | case REQ_FIND_PREV: | |
1697 | direction = -1; | |
1698 | break; | |
1699 | ||
1700 | default: | |
1701 | return; | |
1702 | } | |
1703 | ||
1704 | if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV) | |
1705 | lineno += direction; | |
1706 | ||
1707 | /* Note, lineno is unsigned long so will wrap around in which case it | |
1708 | * will become bigger than view->lines. */ | |
1709 | for (; lineno < view->lines; lineno += direction) { | |
1710 | struct line *line = &view->line[lineno]; | |
1711 | ||
1712 | if (find_next_line(view, lineno, line)) | |
1713 | return; | |
1714 | } | |
1715 | ||
1716 | report("No match found for '%s'", view->grep); | |
1717 | } | |
1718 | ||
1719 | static void | |
c02d8fce | 1720 | search_view(struct view *view, enum request request) |
4af34daa JF |
1721 | { |
1722 | int regex_err; | |
1723 | ||
b77b2cb8 JF |
1724 | if (view->regex) { |
1725 | regfree(view->regex); | |
4af34daa | 1726 | *view->grep = 0; |
b77b2cb8 JF |
1727 | } else { |
1728 | view->regex = calloc(1, sizeof(*view->regex)); | |
1729 | if (!view->regex) | |
1730 | return; | |
4af34daa JF |
1731 | } |
1732 | ||
c02d8fce | 1733 | regex_err = regcomp(view->regex, opt_search, REG_EXTENDED); |
4af34daa JF |
1734 | if (regex_err != 0) { |
1735 | char buf[SIZEOF_STR] = "unknown error"; | |
1736 | ||
b77b2cb8 | 1737 | regerror(regex_err, view->regex, buf, sizeof(buf)); |
e9cacd58 | 1738 | report("Search failed: %s", buf); |
4af34daa JF |
1739 | return; |
1740 | } | |
1741 | ||
c02d8fce | 1742 | string_copy(view->grep, opt_search); |
4af34daa JF |
1743 | |
1744 | find_next(view, request); | |
1745 | } | |
1746 | ||
1747 | /* | |
2e8488b4 JF |
1748 | * Incremental updating |
1749 | */ | |
b801d8b2 | 1750 | |
199d1288 JF |
1751 | static void |
1752 | end_update(struct view *view) | |
1753 | { | |
1754 | if (!view->pipe) | |
1755 | return; | |
1756 | set_nonblocking_input(FALSE); | |
1757 | if (view->pipe == stdin) | |
1758 | fclose(view->pipe); | |
1759 | else | |
1760 | pclose(view->pipe); | |
1761 | view->pipe = NULL; | |
1762 | } | |
1763 | ||
03a93dbb | 1764 | static bool |
b801d8b2 JF |
1765 | begin_update(struct view *view) |
1766 | { | |
4685845e | 1767 | const char *id = view->id; |
fd85fef1 | 1768 | |
199d1288 JF |
1769 | if (view->pipe) |
1770 | end_update(view); | |
1771 | ||
03a93dbb JF |
1772 | if (opt_cmd[0]) { |
1773 | string_copy(view->cmd, opt_cmd); | |
1774 | opt_cmd[0] = 0; | |
8855ada4 JF |
1775 | /* When running random commands, the view ref could have become |
1776 | * invalid so clear it. */ | |
1777 | view->ref[0] = 0; | |
e733ee54 JF |
1778 | |
1779 | } else if (view == VIEW(REQ_VIEW_TREE)) { | |
1780 | const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt; | |
1781 | ||
1782 | if (strcmp(view->vid, view->id)) | |
1783 | opt_path[0] = 0; | |
1784 | ||
4ea4ce91 | 1785 | if (!string_format(view->cmd, format, id, opt_path)) |
e733ee54 JF |
1786 | return FALSE; |
1787 | ||
03a93dbb | 1788 | } else { |
4685845e | 1789 | const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt; |
1ba2ae4b | 1790 | |
cc2d1364 | 1791 | if (!string_format(view->cmd, format, id, id, id, id, id)) |
03a93dbb JF |
1792 | return FALSE; |
1793 | } | |
b801d8b2 | 1794 | |
6908bdbd JF |
1795 | /* Special case for the pager view. */ |
1796 | if (opt_pipe) { | |
1797 | view->pipe = opt_pipe; | |
1798 | opt_pipe = NULL; | |
1799 | } else { | |
1800 | view->pipe = popen(view->cmd, "r"); | |
1801 | } | |
1802 | ||
2e8488b4 JF |
1803 | if (!view->pipe) |
1804 | return FALSE; | |
b801d8b2 | 1805 | |
6b161b31 | 1806 | set_nonblocking_input(TRUE); |
b801d8b2 JF |
1807 | |
1808 | view->offset = 0; | |
1809 | view->lines = 0; | |
1810 | view->lineno = 0; | |
49f2b43f | 1811 | string_copy(view->vid, id); |
b801d8b2 | 1812 | |
2e8488b4 JF |
1813 | if (view->line) { |
1814 | int i; | |
1815 | ||
1816 | for (i = 0; i < view->lines; i++) | |
fe7233c3 JF |
1817 | if (view->line[i].data) |
1818 | free(view->line[i].data); | |
2e8488b4 JF |
1819 | |
1820 | free(view->line); | |
1821 | view->line = NULL; | |
1822 | } | |
1823 | ||
1824 | view->start_time = time(NULL); | |
1825 | ||
b801d8b2 JF |
1826 | return TRUE; |
1827 | } | |
1828 | ||
e2c01617 JF |
1829 | static struct line * |
1830 | realloc_lines(struct view *view, size_t line_size) | |
1831 | { | |
1832 | struct line *tmp = realloc(view->line, sizeof(*view->line) * line_size); | |
1833 | ||
1834 | if (!tmp) | |
1835 | return NULL; | |
1836 | ||
1837 | view->line = tmp; | |
1838 | view->line_size = line_size; | |
1839 | return view->line; | |
1840 | } | |
1841 | ||
03a93dbb | 1842 | static bool |
b801d8b2 JF |
1843 | update_view(struct view *view) |
1844 | { | |
6b68fd24 JF |
1845 | char in_buffer[BUFSIZ]; |
1846 | char out_buffer[BUFSIZ * 2]; | |
b801d8b2 | 1847 | char *line; |
82e78006 JF |
1848 | /* The number of lines to read. If too low it will cause too much |
1849 | * redrawing (and possible flickering), if too high responsiveness | |
1850 | * will suffer. */ | |
8855ada4 | 1851 | unsigned long lines = view->height; |
82e78006 | 1852 | int redraw_from = -1; |
b801d8b2 JF |
1853 | |
1854 | if (!view->pipe) | |
1855 | return TRUE; | |
1856 | ||
82e78006 JF |
1857 | /* Only redraw if lines are visible. */ |
1858 | if (view->offset + view->height >= view->lines) | |
1859 | redraw_from = view->lines - view->offset; | |
b801d8b2 | 1860 | |
699ae55b | 1861 | /* FIXME: This is probably not perfect for backgrounded views. */ |
e2c01617 | 1862 | if (!realloc_lines(view, view->lines + lines)) |
b801d8b2 JF |
1863 | goto alloc_error; |
1864 | ||
6b68fd24 JF |
1865 | while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) { |
1866 | size_t linelen = strlen(line); | |
b801d8b2 | 1867 | |
b801d8b2 JF |
1868 | if (linelen) |
1869 | line[linelen - 1] = 0; | |
1870 | ||
6b68fd24 JF |
1871 | if (opt_iconv != ICONV_NONE) { |
1872 | char *inbuf = line; | |
1873 | size_t inlen = linelen; | |
1874 | ||
1875 | char *outbuf = out_buffer; | |
1876 | size_t outlen = sizeof(out_buffer); | |
1877 | ||
1878 | size_t ret; | |
1879 | ||
1880 | ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen); | |
1881 | if (ret != (size_t) -1) { | |
1882 | line = out_buffer; | |
1883 | linelen = strlen(out_buffer); | |
1884 | } | |
1885 | } | |
1886 | ||
701e4f5d | 1887 | if (!view->ops->read(view, line)) |
b801d8b2 | 1888 | goto alloc_error; |
fd85fef1 JF |
1889 | |
1890 | if (lines-- == 1) | |
1891 | break; | |
b801d8b2 JF |
1892 | } |
1893 | ||
8855ada4 JF |
1894 | { |
1895 | int digits; | |
1896 | ||
1897 | lines = view->lines; | |
1898 | for (digits = 0; lines; digits++) | |
1899 | lines /= 10; | |
1900 | ||
1901 | /* Keep the displayed view in sync with line number scaling. */ | |
1902 | if (digits != view->digits) { | |
1903 | view->digits = digits; | |
1904 | redraw_from = 0; | |
1905 | } | |
1906 | } | |
1907 | ||
699ae55b JF |
1908 | if (!view_is_displayed(view)) |
1909 | goto check_pipe; | |
1910 | ||
e733ee54 JF |
1911 | if (view == VIEW(REQ_VIEW_TREE)) { |
1912 | /* Clear the view and redraw everything since the tree sorting | |
1913 | * might have rearranged things. */ | |
1914 | redraw_view(view); | |
1915 | ||
1916 | } else if (redraw_from >= 0) { | |
82e78006 | 1917 | /* If this is an incremental update, redraw the previous line |
a28bcc22 JF |
1918 | * since for commits some members could have changed when |
1919 | * loading the main view. */ | |
82e78006 JF |
1920 | if (redraw_from > 0) |
1921 | redraw_from--; | |
1922 | ||
1923 | /* Incrementally draw avoids flickering. */ | |
1924 | redraw_view_from(view, redraw_from); | |
4c6fabc2 | 1925 | } |
b801d8b2 | 1926 | |
eb98559e JF |
1927 | /* Update the title _after_ the redraw so that if the redraw picks up a |
1928 | * commit reference in view->ref it'll be available here. */ | |
1929 | update_view_title(view); | |
1930 | ||
699ae55b | 1931 | check_pipe: |
b801d8b2 | 1932 | if (ferror(view->pipe)) { |
03a93dbb | 1933 | report("Failed to read: %s", strerror(errno)); |
b801d8b2 JF |
1934 | goto end; |
1935 | ||
1936 | } else if (feof(view->pipe)) { | |
f97f4012 | 1937 | report(""); |
b801d8b2 JF |
1938 | goto end; |
1939 | } | |
1940 | ||
1941 | return TRUE; | |
1942 | ||
1943 | alloc_error: | |
2e8488b4 | 1944 | report("Allocation failure"); |
b801d8b2 JF |
1945 | |
1946 | end: | |
1947 | end_update(view); | |
1948 | return FALSE; | |
1949 | } | |
1950 | ||
79d445ca | 1951 | |
e10154d5 JF |
1952 | /* |
1953 | * View opening | |
1954 | */ | |
1955 | ||
79d445ca JF |
1956 | static void open_help_view(struct view *view) |
1957 | { | |
1958 | char buf[BUFSIZ]; | |
1959 | int lines = ARRAY_SIZE(req_info) + 2; | |
1960 | int i; | |
1961 | ||
1962 | if (view->lines > 0) | |
1963 | return; | |
1964 | ||
1965 | for (i = 0; i < ARRAY_SIZE(req_info); i++) | |
1966 | if (!req_info[i].request) | |
1967 | lines++; | |
1968 | ||
1969 | view->line = calloc(lines, sizeof(*view->line)); | |
1970 | if (!view->line) { | |
1971 | report("Allocation failure"); | |
1972 | return; | |
1973 | } | |
1974 | ||
1975 | view->ops->read(view, "Quick reference for tig keybindings:"); | |
1976 | ||
1977 | for (i = 0; i < ARRAY_SIZE(req_info); i++) { | |
1978 | char *key; | |
1979 | ||
1980 | if (!req_info[i].request) { | |
1981 | view->ops->read(view, ""); | |
1982 | view->ops->read(view, req_info[i].help); | |
1983 | continue; | |
1984 | } | |
1985 | ||
1986 | key = get_key(req_info[i].request); | |
1987 | if (!string_format(buf, "%-25s %s", key, req_info[i].help)) | |
1988 | continue; | |
1989 | ||
1990 | view->ops->read(view, buf); | |
1991 | } | |
1992 | } | |
1993 | ||
49f2b43f JF |
1994 | enum open_flags { |
1995 | OPEN_DEFAULT = 0, /* Use default view switching. */ | |
1996 | OPEN_SPLIT = 1, /* Split current view. */ | |
1997 | OPEN_BACKGROUNDED = 2, /* Backgrounded. */ | |
1998 | OPEN_RELOAD = 4, /* Reload view even if it is the current. */ | |
1999 | }; | |
2000 | ||
6b161b31 | 2001 | static void |
49f2b43f | 2002 | open_view(struct view *prev, enum request request, enum open_flags flags) |
b801d8b2 | 2003 | { |
49f2b43f JF |
2004 | bool backgrounded = !!(flags & OPEN_BACKGROUNDED); |
2005 | bool split = !!(flags & OPEN_SPLIT); | |
2006 | bool reload = !!(flags & OPEN_RELOAD); | |
a28bcc22 | 2007 | struct view *view = VIEW(request); |
9f41488f | 2008 | int nviews = displayed_views(); |
6e950a52 | 2009 | struct view *base_view = display[0]; |
b801d8b2 | 2010 | |
49f2b43f | 2011 | if (view == prev && nviews == 1 && !reload) { |
6b161b31 JF |
2012 | report("Already in %s view", view->name); |
2013 | return; | |
2014 | } | |
b801d8b2 | 2015 | |
2509b112 | 2016 | if (view == VIEW(REQ_VIEW_HELP)) { |
79d445ca | 2017 | open_help_view(view); |
2509b112 JF |
2018 | |
2019 | } else if ((reload || strcmp(view->vid, view->id)) && | |
2020 | !begin_update(view)) { | |
6b161b31 JF |
2021 | report("Failed to load %s view", view->name); |
2022 | return; | |
2023 | } | |
a28bcc22 | 2024 | |
6b161b31 | 2025 | if (split) { |
8d741c06 | 2026 | display[1] = view; |
6b161b31 | 2027 | if (!backgrounded) |
8d741c06 | 2028 | current_view = 1; |
6b161b31 JF |
2029 | } else { |
2030 | /* Maximize the current view. */ | |
2031 | memset(display, 0, sizeof(display)); | |
2032 | current_view = 0; | |
2033 | display[current_view] = view; | |
a28bcc22 | 2034 | } |
b801d8b2 | 2035 | |
6e950a52 JF |
2036 | /* Resize the view when switching between split- and full-screen, |
2037 | * or when switching between two different full-screen views. */ | |
2038 | if (nviews != displayed_views() || | |
2039 | (nviews == 1 && base_view != display[0])) | |
a006db63 | 2040 | resize_display(); |
b801d8b2 | 2041 | |
a8891802 | 2042 | if (split && prev->lineno - prev->offset >= prev->height) { |
03a93dbb | 2043 | /* Take the title line into account. */ |
eb98559e | 2044 | int lines = prev->lineno - prev->offset - prev->height + 1; |
03a93dbb JF |
2045 | |
2046 | /* Scroll the view that was split if the current line is | |
2047 | * outside the new limited view. */ | |
8c317212 | 2048 | do_scroll_view(prev, lines); |
03a93dbb JF |
2049 | } |
2050 | ||
6b161b31 | 2051 | if (prev && view != prev) { |
9b995f0c | 2052 | if (split && !backgrounded) { |
f0b3ab80 JF |
2053 | /* "Blur" the previous view. */ |
2054 | update_view_title(prev); | |
9f396969 | 2055 | } |
f0b3ab80 | 2056 | |
f6da0b66 | 2057 | view->parent = prev; |
b801d8b2 JF |
2058 | } |
2059 | ||
9f396969 | 2060 | if (view->pipe && view->lines == 0) { |
03a93dbb JF |
2061 | /* Clear the old view and let the incremental updating refill |
2062 | * the screen. */ | |
2063 | wclear(view->win); | |
f97f4012 | 2064 | report(""); |
03a93dbb JF |
2065 | } else { |
2066 | redraw_view(view); | |
24b5b3e0 | 2067 | report(""); |
03a93dbb | 2068 | } |
6706b2ba JF |
2069 | |
2070 | /* If the view is backgrounded the above calls to report() | |
2071 | * won't redraw the view title. */ | |
2072 | if (backgrounded) | |
2073 | update_view_title(view); | |
b801d8b2 JF |
2074 | } |
2075 | ||
2076 | ||
6b161b31 JF |
2077 | /* |
2078 | * User request switch noodle | |
2079 | */ | |
2080 | ||
b801d8b2 | 2081 | static int |
6b161b31 | 2082 | view_driver(struct view *view, enum request request) |
b801d8b2 | 2083 | { |
b801d8b2 JF |
2084 | int i; |
2085 | ||
2086 | switch (request) { | |
4a2909a7 JF |
2087 | case REQ_MOVE_UP: |
2088 | case REQ_MOVE_DOWN: | |
2089 | case REQ_MOVE_PAGE_UP: | |
2090 | case REQ_MOVE_PAGE_DOWN: | |
2091 | case REQ_MOVE_FIRST_LINE: | |
2092 | case REQ_MOVE_LAST_LINE: | |
8522ecc7 | 2093 | move_view(view, request); |
fd85fef1 JF |
2094 | break; |
2095 | ||
4a2909a7 JF |
2096 | case REQ_SCROLL_LINE_DOWN: |
2097 | case REQ_SCROLL_LINE_UP: | |
2098 | case REQ_SCROLL_PAGE_DOWN: | |
2099 | case REQ_SCROLL_PAGE_UP: | |
a28bcc22 | 2100 | scroll_view(view, request); |
b801d8b2 JF |
2101 | break; |
2102 | ||
e733ee54 JF |
2103 | case REQ_VIEW_BLOB: |
2104 | if (!ref_blob[0]) { | |
2105 | report("No file chosen, press 't' to open tree view"); | |
2106 | break; | |
2107 | } | |
2108 | /* Fall-through */ | |
4a2909a7 | 2109 | case REQ_VIEW_MAIN: |
4a2909a7 | 2110 | case REQ_VIEW_DIFF: |
2e8488b4 | 2111 | case REQ_VIEW_LOG: |
e733ee54 | 2112 | case REQ_VIEW_TREE: |
2e8488b4 | 2113 | case REQ_VIEW_HELP: |
6908bdbd | 2114 | case REQ_VIEW_PAGER: |
49f2b43f | 2115 | open_view(view, request, OPEN_DEFAULT); |
b801d8b2 JF |
2116 | break; |
2117 | ||
b3a54cba JF |
2118 | case REQ_NEXT: |
2119 | case REQ_PREVIOUS: | |
2120 | request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP; | |
2121 | ||
e733ee54 JF |
2122 | if ((view == VIEW(REQ_VIEW_DIFF) && |
2123 | view->parent == VIEW(REQ_VIEW_MAIN)) || | |
2124 | (view == VIEW(REQ_VIEW_BLOB) && | |
2125 | view->parent == VIEW(REQ_VIEW_TREE))) { | |
b3a54cba | 2126 | view = view->parent; |
8522ecc7 JF |
2127 | move_view(view, request); |
2128 | if (view_is_displayed(view)) | |
f0b3ab80 | 2129 | update_view_title(view); |
b3a54cba | 2130 | } else { |
8522ecc7 | 2131 | move_view(view, request); |
b3a54cba JF |
2132 | break; |
2133 | } | |
6706b2ba JF |
2134 | /* Fall-through */ |
2135 | ||
6b161b31 | 2136 | case REQ_ENTER: |
6908bdbd JF |
2137 | if (!view->lines) { |
2138 | report("Nothing to enter"); | |
2139 | break; | |
2140 | } | |
fe7233c3 | 2141 | return view->ops->enter(view, &view->line[view->lineno]); |
6b161b31 | 2142 | |
03a93dbb JF |
2143 | case REQ_VIEW_NEXT: |
2144 | { | |
9f41488f | 2145 | int nviews = displayed_views(); |
03a93dbb JF |
2146 | int next_view = (current_view + 1) % nviews; |
2147 | ||
2148 | if (next_view == current_view) { | |
2149 | report("Only one view is displayed"); | |
2150 | break; | |
2151 | } | |
2152 | ||
2153 | current_view = next_view; | |
2154 | /* Blur out the title of the previous view. */ | |
2155 | update_view_title(view); | |
6734f6b9 | 2156 | report(""); |
03a93dbb JF |
2157 | break; |
2158 | } | |
24b5b3e0 | 2159 | case REQ_TOGGLE_LINENO: |
b76c2afc | 2160 | opt_line_number = !opt_line_number; |
20bb5e18 | 2161 | redraw_display(); |
b801d8b2 JF |
2162 | break; |
2163 | ||
54efb62b JF |
2164 | case REQ_TOGGLE_REV_GRAPH: |
2165 | opt_rev_graph = !opt_rev_graph; | |
2166 | redraw_display(); | |
2167 | break; | |
2168 | ||
03a93dbb | 2169 | case REQ_PROMPT: |
8855ada4 | 2170 | /* Always reload^Wrerun commands from the prompt. */ |
49f2b43f | 2171 | open_view(view, opt_request, OPEN_RELOAD); |
03a93dbb JF |
2172 | break; |
2173 | ||
4af34daa JF |
2174 | case REQ_SEARCH: |
2175 | case REQ_SEARCH_BACK: | |
c02d8fce | 2176 | search_view(view, request); |
4af34daa JF |
2177 | break; |
2178 | ||
2179 | case REQ_FIND_NEXT: | |
2180 | case REQ_FIND_PREV: | |
2181 | find_next(view, request); | |
2182 | break; | |
2183 | ||
4a2909a7 | 2184 | case REQ_STOP_LOADING: |
59a45d3a JF |
2185 | for (i = 0; i < ARRAY_SIZE(views); i++) { |
2186 | view = &views[i]; | |
2e8488b4 | 2187 | if (view->pipe) |
6a7bb912 | 2188 | report("Stopped loading the %s view", view->name), |
03a93dbb JF |
2189 | end_update(view); |
2190 | } | |
b801d8b2 JF |
2191 | break; |
2192 | ||
4a2909a7 | 2193 | case REQ_SHOW_VERSION: |
6cb291b7 | 2194 | report("%s (built %s)", VERSION, __DATE__); |
b801d8b2 JF |
2195 | return TRUE; |
2196 | ||
fac7db6c JF |
2197 | case REQ_SCREEN_RESIZE: |
2198 | resize_display(); | |
2199 | /* Fall-through */ | |
4a2909a7 | 2200 | case REQ_SCREEN_REDRAW: |
20bb5e18 | 2201 | redraw_display(); |
4a2909a7 JF |
2202 | break; |
2203 | ||
1d754561 | 2204 | case REQ_NONE: |
b801d8b2 JF |
2205 | doupdate(); |
2206 | return TRUE; | |
2207 | ||
4f9b667a | 2208 | case REQ_VIEW_CLOSE: |
2fcf5401 JF |
2209 | /* XXX: Mark closed views by letting view->parent point to the |
2210 | * view itself. Parents to closed view should never be | |
2211 | * followed. */ | |
2212 | if (view->parent && | |
2213 | view->parent->parent != view->parent) { | |
4f9b667a JF |
2214 | memset(display, 0, sizeof(display)); |
2215 | current_view = 0; | |
f6da0b66 | 2216 | display[current_view] = view->parent; |
2fcf5401 | 2217 | view->parent = view; |
4f9b667a JF |
2218 | resize_display(); |
2219 | redraw_display(); | |
2220 | break; | |
2221 | } | |
2222 | /* Fall-through */ | |
b801d8b2 JF |
2223 | case REQ_QUIT: |
2224 | return FALSE; | |
2225 | ||
2226 | default: | |
2e8488b4 | 2227 | /* An unknown key will show most commonly used commands. */ |
468876c9 | 2228 | report("Unknown key, press 'h' for help"); |
b801d8b2 JF |
2229 | return TRUE; |
2230 | } | |
2231 | ||
2232 | return TRUE; | |
2233 | } | |
2234 | ||
2235 | ||
2236 | /* | |
ff26aa29 | 2237 | * Pager backend |
b801d8b2 JF |
2238 | */ |
2239 | ||
6b161b31 | 2240 | static bool |
5dcf8064 | 2241 | pager_draw(struct view *view, struct line *line, unsigned int lineno, bool selected) |
b801d8b2 | 2242 | { |
fe7233c3 JF |
2243 | char *text = line->data; |
2244 | enum line_type type = line->type; | |
2245 | int textlen = strlen(text); | |
78c70acd | 2246 | int attr; |
b801d8b2 | 2247 | |
6706b2ba JF |
2248 | wmove(view->win, lineno, 0); |
2249 | ||
5dcf8064 | 2250 | if (selected) { |
78c70acd | 2251 | type = LINE_CURSOR; |
6706b2ba | 2252 | wchgat(view->win, -1, 0, type, NULL); |
fd85fef1 JF |
2253 | } |
2254 | ||
78c70acd | 2255 | attr = get_line_attr(type); |
b801d8b2 | 2256 | wattrset(view->win, attr); |
b76c2afc | 2257 | |
6706b2ba JF |
2258 | if (opt_line_number || opt_tab_size < TABSIZE) { |
2259 | static char spaces[] = " "; | |
2260 | int col_offset = 0, col = 0; | |
2261 | ||
2262 | if (opt_line_number) { | |
2263 | unsigned long real_lineno = view->offset + lineno + 1; | |
82e78006 | 2264 | |
6706b2ba JF |
2265 | if (real_lineno == 1 || |
2266 | (real_lineno % opt_num_interval) == 0) { | |
2267 | wprintw(view->win, "%.*d", view->digits, real_lineno); | |
8855ada4 | 2268 | |
6706b2ba JF |
2269 | } else { |
2270 | waddnstr(view->win, spaces, | |
2271 | MIN(view->digits, STRING_SIZE(spaces))); | |
2272 | } | |
2273 | waddstr(view->win, ": "); | |
2274 | col_offset = view->digits + 2; | |
2275 | } | |
8855ada4 | 2276 | |
fe7233c3 | 2277 | while (text && col_offset + col < view->width) { |
6706b2ba | 2278 | int cols_max = view->width - col_offset - col; |
fe7233c3 | 2279 | char *pos = text; |
6706b2ba | 2280 | int cols; |
4c6fabc2 | 2281 | |
fe7233c3 JF |
2282 | if (*text == '\t') { |
2283 | text++; | |
6706b2ba | 2284 | assert(sizeof(spaces) > TABSIZE); |
fe7233c3 | 2285 | pos = spaces; |
6706b2ba | 2286 | cols = opt_tab_size - (col % opt_tab_size); |
82e78006 | 2287 | |
b76c2afc | 2288 | } else { |
fe7233c3 JF |
2289 | text = strchr(text, '\t'); |
2290 | cols = line ? text - pos : strlen(pos); | |
b76c2afc | 2291 | } |
6706b2ba | 2292 | |
fe7233c3 | 2293 | waddnstr(view->win, pos, MIN(cols, cols_max)); |
6706b2ba | 2294 | col += cols; |
b76c2afc | 2295 | } |
b76c2afc JF |
2296 | |
2297 | } else { | |
6706b2ba | 2298 | int col = 0, pos = 0; |
b801d8b2 | 2299 | |
fe7233c3 JF |
2300 | for (; pos < textlen && col < view->width; pos++, col++) |
2301 | if (text[pos] == '\t') | |
6706b2ba JF |
2302 | col += TABSIZE - (col % TABSIZE) - 1; |
2303 | ||
fe7233c3 | 2304 | waddnstr(view->win, text, pos); |
6706b2ba | 2305 | } |
2e8488b4 | 2306 | |
b801d8b2 JF |
2307 | return TRUE; |
2308 | } | |
2309 | ||
dc23c0e3 | 2310 | static bool |
d65ced0d | 2311 | add_describe_ref(char *buf, size_t *bufpos, char *commit_id, const char *sep) |
dc23c0e3 | 2312 | { |
17482b11 | 2313 | char refbuf[SIZEOF_STR]; |
dc23c0e3 JF |
2314 | char *ref = NULL; |
2315 | FILE *pipe; | |
2316 | ||
2317 | if (!string_format(refbuf, "git describe %s", commit_id)) | |
2318 | return TRUE; | |
2319 | ||
2320 | pipe = popen(refbuf, "r"); | |
2321 | if (!pipe) | |
2322 | return TRUE; | |
2323 | ||
2324 | if ((ref = fgets(refbuf, sizeof(refbuf), pipe))) | |
2325 | ref = chomp_string(ref); | |
2326 | pclose(pipe); | |
2327 | ||
2328 | if (!ref || !*ref) | |
2329 | return TRUE; | |
2330 | ||
2331 | /* This is the only fatal call, since it can "corrupt" the buffer. */ | |
17482b11 | 2332 | if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref)) |
dc23c0e3 JF |
2333 | return FALSE; |
2334 | ||
2335 | return TRUE; | |
2336 | } | |
2337 | ||
7b99a34c JF |
2338 | static void |
2339 | add_pager_refs(struct view *view, struct line *line) | |
2340 | { | |
17482b11 | 2341 | char buf[SIZEOF_STR]; |
c9ca1ec3 | 2342 | char *commit_id = line->data + STRING_SIZE("commit "); |
7b99a34c | 2343 | struct ref **refs; |
d65ced0d | 2344 | size_t bufpos = 0, refpos = 0; |
7b99a34c | 2345 | const char *sep = "Refs: "; |
dc23c0e3 | 2346 | bool is_tag = FALSE; |
7b99a34c JF |
2347 | |
2348 | assert(line->type == LINE_COMMIT); | |
2349 | ||
c9ca1ec3 | 2350 | refs = get_refs(commit_id); |
dc23c0e3 JF |
2351 | if (!refs) { |
2352 | if (view == VIEW(REQ_VIEW_DIFF)) | |
2353 | goto try_add_describe_ref; | |
7b99a34c | 2354 | return; |
dc23c0e3 | 2355 | } |
7b99a34c JF |
2356 | |
2357 | do { | |
cc2d1364 JF |
2358 | struct ref *ref = refs[refpos]; |
2359 | char *fmt = ref->tag ? "%s[%s]" : "%s%s"; | |
7b99a34c | 2360 | |
cc2d1364 JF |
2361 | if (!string_format_from(buf, &bufpos, fmt, sep, ref->name)) |
2362 | return; | |
7b99a34c | 2363 | sep = ", "; |
dc23c0e3 JF |
2364 | if (ref->tag) |
2365 | is_tag = TRUE; | |
7b99a34c JF |
2366 | } while (refs[refpos++]->next); |
2367 | ||
dc23c0e3 JF |
2368 | if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) { |
2369 | try_add_describe_ref: | |
d42c8a35 | 2370 | /* Add <tag>-g<commit_id> "fake" reference. */ |
dc23c0e3 JF |
2371 | if (!add_describe_ref(buf, &bufpos, commit_id, sep)) |
2372 | return; | |
2373 | } | |
2374 | ||
d42c8a35 JF |
2375 | if (bufpos == 0) |
2376 | return; | |
2377 | ||
cc2d1364 | 2378 | if (!realloc_lines(view, view->line_size + 1)) |
7b99a34c JF |
2379 | return; |
2380 | ||
2381 | line = &view->line[view->lines]; | |
2382 | line->data = strdup(buf); | |
2383 | if (!line->data) | |
2384 | return; | |
2385 | ||
2386 | line->type = LINE_PP_REFS; | |
2387 | view->lines++; | |
2388 | } | |
2389 | ||
6b161b31 | 2390 | static bool |
701e4f5d | 2391 | pager_read(struct view *view, char *data) |
22f66b0a | 2392 | { |
7b99a34c | 2393 | struct line *line = &view->line[view->lines]; |
22f66b0a | 2394 | |
7b99a34c JF |
2395 | line->data = strdup(data); |
2396 | if (!line->data) | |
2397 | return FALSE; | |
fe7233c3 | 2398 | |
7b99a34c | 2399 | line->type = get_line_type(line->data); |
22f66b0a | 2400 | view->lines++; |
7b99a34c JF |
2401 | |
2402 | if (line->type == LINE_COMMIT && | |
2403 | (view == VIEW(REQ_VIEW_DIFF) || | |
2404 | view == VIEW(REQ_VIEW_LOG))) | |
2405 | add_pager_refs(view, line); | |
2406 | ||
22f66b0a JF |
2407 | return TRUE; |
2408 | } | |
2409 | ||
6b161b31 | 2410 | static bool |
fe7233c3 | 2411 | pager_enter(struct view *view, struct line *line) |
6b161b31 | 2412 | { |
91e8e277 | 2413 | int split = 0; |
6b161b31 | 2414 | |
9fbbd28f JF |
2415 | if (line->type == LINE_COMMIT && |
2416 | (view == VIEW(REQ_VIEW_LOG) || | |
2417 | view == VIEW(REQ_VIEW_PAGER))) { | |
91e8e277 JF |
2418 | open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT); |
2419 | split = 1; | |
67e48ac5 JF |
2420 | } |
2421 | ||
91e8e277 JF |
2422 | /* Always scroll the view even if it was split. That way |
2423 | * you can use Enter to scroll through the log view and | |
2424 | * split open each commit diff. */ | |
2425 | scroll_view(view, REQ_SCROLL_LINE_DOWN); | |
2426 | ||
2427 | /* FIXME: A minor workaround. Scrolling the view will call report("") | |
9d82d824 JF |
2428 | * but if we are scrolling a non-current view this won't properly |
2429 | * update the view title. */ | |
91e8e277 JF |
2430 | if (split) |
2431 | update_view_title(view); | |
6b161b31 JF |
2432 | |
2433 | return TRUE; | |
2434 | } | |
2435 | ||
4af34daa JF |
2436 | static bool |
2437 | pager_grep(struct view *view, struct line *line) | |
2438 | { | |
2439 | regmatch_t pmatch; | |
2440 | char *text = line->data; | |
2441 | ||
2442 | if (!*text) | |
2443 | return FALSE; | |
2444 | ||
b77b2cb8 | 2445 | if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH) |
4af34daa JF |
2446 | return FALSE; |
2447 | ||
2448 | return TRUE; | |
2449 | } | |
2450 | ||
d720de4b JF |
2451 | static void |
2452 | pager_select(struct view *view, struct line *line) | |
2453 | { | |
2454 | if (line->type == LINE_COMMIT) { | |
2455 | char *text = line->data; | |
2456 | ||
5dcf8064 | 2457 | string_copy(view->ref, text + STRING_SIZE("commit ")); |
d720de4b JF |
2458 | string_copy(ref_commit, view->ref); |
2459 | } | |
2460 | } | |
2461 | ||
6b161b31 | 2462 | static struct view_ops pager_ops = { |
6734f6b9 | 2463 | "line", |
6b161b31 JF |
2464 | pager_draw, |
2465 | pager_read, | |
2466 | pager_enter, | |
4af34daa | 2467 | pager_grep, |
d720de4b | 2468 | pager_select, |
6b161b31 JF |
2469 | }; |
2470 | ||
80ce96ea | 2471 | |
ff26aa29 | 2472 | /* |
e733ee54 JF |
2473 | * Tree backend |
2474 | */ | |
2475 | ||
4795d620 | 2476 | /* Parse output from git-ls-tree(1): |
e733ee54 JF |
2477 | * |
2478 | * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile | |
2479 | * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README | |
2480 | * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c | |
2481 | * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf | |
2482 | */ | |
2483 | ||
2484 | #define SIZEOF_TREE_ATTR \ | |
2485 | STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t") | |
2486 | ||
2487 | #define TREE_UP_FORMAT "040000 tree %s\t.." | |
2488 | ||
2489 | static int | |
2490 | tree_compare_entry(enum line_type type1, char *name1, | |
2491 | enum line_type type2, char *name2) | |
2492 | { | |
2493 | if (type1 != type2) { | |
2494 | if (type1 == LINE_TREE_DIR) | |
2495 | return -1; | |
2496 | return 1; | |
2497 | } | |
2498 | ||
2499 | return strcmp(name1, name2); | |
2500 | } | |
2501 | ||
2502 | static bool | |
2503 | tree_read(struct view *view, char *text) | |
2504 | { | |
2505 | size_t textlen = strlen(text); | |
2506 | char buf[SIZEOF_STR]; | |
2507 | unsigned long pos; | |
2508 | enum line_type type; | |
f88a5319 | 2509 | bool first_read = view->lines == 0; |
e733ee54 JF |
2510 | |
2511 | if (textlen <= SIZEOF_TREE_ATTR) | |
2512 | return FALSE; | |
2513 | ||
2514 | type = text[STRING_SIZE("100644 ")] == 't' | |
2515 | ? LINE_TREE_DIR : LINE_TREE_FILE; | |
2516 | ||
f88a5319 | 2517 | if (first_read) { |
e733ee54 | 2518 | /* Add path info line */ |
4ea4ce91 | 2519 | if (string_format(buf, "Directory path /%s", opt_path) && |
e733ee54 JF |
2520 | realloc_lines(view, view->line_size + 1) && |
2521 | pager_read(view, buf)) | |
2522 | view->line[view->lines - 1].type = LINE_DEFAULT; | |
2523 | else | |
2524 | return FALSE; | |
2525 | ||
2526 | /* Insert "link" to parent directory. */ | |
2527 | if (*opt_path && | |
4ea4ce91 | 2528 | string_format(buf, TREE_UP_FORMAT, view->ref) && |
e733ee54 JF |
2529 | realloc_lines(view, view->line_size + 1) && |
2530 | pager_read(view, buf)) | |
2531 | view->line[view->lines - 1].type = LINE_TREE_DIR; | |
2532 | else if (*opt_path) | |
2533 | return FALSE; | |
2534 | } | |
2535 | ||
2536 | /* Strip the path part ... */ | |
2537 | if (*opt_path) { | |
2538 | size_t pathlen = textlen - SIZEOF_TREE_ATTR; | |
2539 | size_t striplen = strlen(opt_path); | |
2540 | char *path = text + SIZEOF_TREE_ATTR; | |
2541 | ||
2542 | if (pathlen > striplen) | |
2543 | memmove(path, path + striplen, | |
2544 | pathlen - striplen + 1); | |
2545 | } | |
2546 | ||
2547 | /* Skip "Directory ..." and ".." line. */ | |
2548 | for (pos = 1 + !!*opt_path; pos < view->lines; pos++) { | |
2549 | struct line *line = &view->line[pos]; | |
2550 | char *path1 = ((char *) line->data) + SIZEOF_TREE_ATTR; | |
2551 | char *path2 = text + SIZEOF_TREE_ATTR; | |
2552 | int cmp = tree_compare_entry(line->type, path1, type, path2); | |
2553 | ||
2554 | if (cmp <= 0) | |
2555 | continue; | |
2556 | ||
2557 | text = strdup(text); | |
2558 | if (!text) | |
2559 | return FALSE; | |
2560 | ||
2561 | if (view->lines > pos) | |
2562 | memmove(&view->line[pos + 1], &view->line[pos], | |
2563 | (view->lines - pos) * sizeof(*line)); | |
2564 | ||
2565 | line = &view->line[pos]; | |
2566 | line->data = text; | |
2567 | line->type = type; | |
2568 | view->lines++; | |
2569 | return TRUE; | |
2570 | } | |
2571 | ||
2572 | if (!pager_read(view, text)) | |
2573 | return FALSE; | |
2574 | ||
f88a5319 JF |
2575 | /* Move the current line to the first tree entry. */ |
2576 | if (first_read) | |
2577 | view->lineno++; | |
2578 | ||
e733ee54 JF |
2579 | view->line[view->lines - 1].type = type; |
2580 | return TRUE; | |
2581 | } | |
2582 | ||
2583 | static bool | |
2584 | tree_enter(struct view *view, struct line *line) | |
2585 | { | |
2b42e5d6 | 2586 | enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT; |
e733ee54 JF |
2587 | enum request request; |
2588 | ||
2589 | switch (line->type) { | |
2590 | case LINE_TREE_DIR: | |
2591 | /* Depending on whether it is a subdir or parent (updir?) link | |
2592 | * mangle the path buffer. */ | |
2593 | if (line == &view->line[1] && *opt_path) { | |
2594 | size_t path_len = strlen(opt_path); | |
2595 | char *dirsep = opt_path + path_len - 1; | |
2596 | ||
2597 | while (dirsep > opt_path && dirsep[-1] != '/') | |
2598 | dirsep--; | |
2599 | ||
2600 | dirsep[0] = 0; | |
2601 | ||
2602 | } else { | |
d65ced0d | 2603 | size_t pathlen = strlen(opt_path); |
4ea4ce91 | 2604 | size_t origlen = pathlen; |
4795d620 | 2605 | char *data = line->data; |
e733ee54 JF |
2606 | char *basename = data + SIZEOF_TREE_ATTR; |
2607 | ||
4038038f | 2608 | if (!string_format_from(opt_path, &pathlen, "%s/", basename)) { |
4ea4ce91 JF |
2609 | opt_path[origlen] = 0; |
2610 | return TRUE; | |
2611 | } | |
e733ee54 JF |
2612 | } |
2613 | ||
2614 | /* Trees and subtrees share the same ID, so they are not not | |
2615 | * unique like blobs. */ | |
2616 | flags |= OPEN_RELOAD; | |
2617 | request = REQ_VIEW_TREE; | |
2618 | break; | |
2619 | ||
2620 | case LINE_TREE_FILE: | |
e733ee54 JF |
2621 | request = REQ_VIEW_BLOB; |
2622 | break; | |
2623 | ||
2624 | default: | |
2625 | return TRUE; | |
2626 | } | |
2627 | ||
2628 | open_view(view, request, flags); | |
2629 | ||
e733ee54 JF |
2630 | return TRUE; |
2631 | } | |
2632 | ||
d720de4b JF |
2633 | static void |
2634 | tree_select(struct view *view, struct line *line) | |
2635 | { | |
73c76ef5 JF |
2636 | char *text = line->data; |
2637 | ||
2638 | text += STRING_SIZE("100644 blob "); | |
2639 | ||
2640 | if (line->type == LINE_TREE_FILE) { | |
2641 | string_ncopy(ref_blob, text, 40); | |
2642 | /* Also update the blob view's ref, since all there must always | |
2643 | * be in sync. */ | |
2644 | string_copy(VIEW(REQ_VIEW_BLOB)->ref, ref_blob); | |
d720de4b | 2645 | |
ebbaf4fe JF |
2646 | } else if (line->type != LINE_TREE_DIR) { |
2647 | return; | |
d720de4b | 2648 | } |
ebbaf4fe JF |
2649 | |
2650 | string_ncopy(view->ref, text, 40); | |
d720de4b JF |
2651 | } |
2652 | ||
e733ee54 JF |
2653 | static struct view_ops tree_ops = { |
2654 | "file", | |
2655 | pager_draw, | |
2656 | tree_read, | |
2657 | tree_enter, | |
2658 | pager_grep, | |
d720de4b | 2659 | tree_select, |
e733ee54 JF |
2660 | }; |
2661 | ||
2662 | static bool | |
2663 | blob_read(struct view *view, char *line) | |
2664 | { | |
2665 | bool state = pager_read(view, line); | |
2666 | ||
2667 | if (state == TRUE) | |
2668 | view->line[view->lines - 1].type = LINE_DEFAULT; | |
2669 | ||
2670 | return state; | |
2671 | } | |
2672 | ||
2673 | static struct view_ops blob_ops = { | |
2674 | "line", | |
2675 | pager_draw, | |
2676 | blob_read, | |
2677 | pager_enter, | |
2678 | pager_grep, | |
d720de4b | 2679 | pager_select, |
e733ee54 JF |
2680 | }; |
2681 | ||
2682 | ||
2683 | /* | |
ff26aa29 JF |
2684 | * Main view backend |
2685 | */ | |
2686 | ||
2687 | struct commit { | |
10446330 | 2688 | char id[SIZEOF_REV]; /* SHA1 ID. */ |
54efb62b JF |
2689 | char title[75]; /* First line of the commit message. */ |
2690 | char author[75]; /* Author of the commit. */ | |
2691 | struct tm time; /* Date from the author ident. */ | |
2692 | struct ref **refs; /* Repository references. */ | |
2693 | chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */ | |
2694 | size_t graph_size; /* The width of the graph array. */ | |
ff26aa29 | 2695 | }; |
c34d9c9f | 2696 | |
6b161b31 | 2697 | static bool |
5dcf8064 | 2698 | main_draw(struct view *view, struct line *line, unsigned int lineno, bool selected) |
22f66b0a | 2699 | { |
2e8488b4 | 2700 | char buf[DATE_COLS + 1]; |
fe7233c3 | 2701 | struct commit *commit = line->data; |
78c70acd | 2702 | enum line_type type; |
6706b2ba | 2703 | int col = 0; |
b76c2afc | 2704 | size_t timelen; |
10e290ee | 2705 | size_t authorlen; |
9989bf60 | 2706 | int trimmed = 1; |
22f66b0a | 2707 | |
4c6fabc2 JF |
2708 | if (!*commit->author) |
2709 | return FALSE; | |
22f66b0a | 2710 | |
6706b2ba JF |
2711 | wmove(view->win, lineno, col); |
2712 | ||
5dcf8064 | 2713 | if (selected) { |
78c70acd | 2714 | type = LINE_CURSOR; |
6706b2ba JF |
2715 | wattrset(view->win, get_line_attr(type)); |
2716 | wchgat(view->win, -1, 0, type, NULL); | |
2717 | ||
78c70acd | 2718 | } else { |
b76c2afc | 2719 | type = LINE_MAIN_COMMIT; |
6706b2ba | 2720 | wattrset(view->win, get_line_attr(LINE_MAIN_DATE)); |
b76c2afc JF |
2721 | } |
2722 | ||
4c6fabc2 | 2723 | timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time); |
b76c2afc | 2724 | waddnstr(view->win, buf, timelen); |
4c6fabc2 | 2725 | waddstr(view->win, " "); |
b76c2afc | 2726 | |
6706b2ba JF |
2727 | col += DATE_COLS; |
2728 | wmove(view->win, lineno, col); | |
2729 | if (type != LINE_CURSOR) | |
2730 | wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR)); | |
b76c2afc | 2731 | |
9989bf60 JF |
2732 | if (opt_utf8) { |
2733 | authorlen = utf8_length(commit->author, AUTHOR_COLS - 2, &col, &trimmed); | |
2734 | } else { | |
2735 | authorlen = strlen(commit->author); | |
2736 | if (authorlen > AUTHOR_COLS - 2) { | |
2737 | authorlen = AUTHOR_COLS - 2; | |
2738 | trimmed = 1; | |
2739 | } | |
2740 | } | |
10e290ee JF |
2741 | |
2742 | if (trimmed) { | |
2743 | waddnstr(view->win, commit->author, authorlen); | |
6706b2ba JF |
2744 | if (type != LINE_CURSOR) |
2745 | wattrset(view->win, get_line_attr(LINE_MAIN_DELIM)); | |
b76c2afc JF |
2746 | waddch(view->win, '~'); |
2747 | } else { | |
2748 | waddstr(view->win, commit->author); | |
22f66b0a JF |
2749 | } |
2750 | ||
10e290ee | 2751 | col += AUTHOR_COLS; |
6706b2ba JF |
2752 | if (type != LINE_CURSOR) |
2753 | wattrset(view->win, A_NORMAL); | |
2754 | ||
54efb62b JF |
2755 | if (opt_rev_graph && commit->graph_size) { |
2756 | size_t i; | |
2757 | ||
2758 | wmove(view->win, lineno, col); | |
2759 | /* Using waddch() instead of waddnstr() ensures that | |
2760 | * they'll be rendered correctly for the cursor line. */ | |
2761 | for (i = 0; i < commit->graph_size; i++) | |
2762 | waddch(view->win, commit->graph[i]); | |
2763 | ||
2764 | col += commit->graph_size + 1; | |
2765 | } | |
2766 | ||
2767 | wmove(view->win, lineno, col); | |
c34d9c9f JF |
2768 | |
2769 | if (commit->refs) { | |
2770 | size_t i = 0; | |
2771 | ||
2772 | do { | |
6706b2ba JF |
2773 | if (type == LINE_CURSOR) |
2774 | ; | |
2775 | else if (commit->refs[i]->tag) | |
c34d9c9f JF |
2776 | wattrset(view->win, get_line_attr(LINE_MAIN_TAG)); |
2777 | else | |
2778 | wattrset(view->win, get_line_attr(LINE_MAIN_REF)); | |
2779 | waddstr(view->win, "["); | |
2780 | waddstr(view->win, commit->refs[i]->name); | |
2781 | waddstr(view->win, "]"); | |
6706b2ba JF |
2782 | if (type != LINE_CURSOR) |
2783 | wattrset(view->win, A_NORMAL); | |
c34d9c9f | 2784 | waddstr(view->win, " "); |
6706b2ba | 2785 | col += strlen(commit->refs[i]->name) + STRING_SIZE("[] "); |
c34d9c9f JF |
2786 | } while (commit->refs[i++]->next); |
2787 | } | |
2788 | ||
6706b2ba JF |
2789 | if (type != LINE_CURSOR) |
2790 | wattrset(view->win, get_line_attr(type)); | |
2791 | ||
2792 | { | |
2793 | int titlelen = strlen(commit->title); | |
2794 | ||
2795 | if (col + titlelen > view->width) | |
2796 | titlelen = view->width - col; | |
2797 | ||
2798 | waddnstr(view->win, commit->title, titlelen); | |
2799 | } | |
22f66b0a JF |
2800 | |
2801 | return TRUE; | |
2802 | } | |
2803 | ||
4c6fabc2 | 2804 | /* Reads git log --pretty=raw output and parses it into the commit struct. */ |
6b161b31 | 2805 | static bool |
701e4f5d | 2806 | main_read(struct view *view, char *line) |
22f66b0a | 2807 | { |
78c70acd | 2808 | enum line_type type = get_line_type(line); |
701e4f5d JF |
2809 | struct commit *commit = view->lines |
2810 | ? view->line[view->lines - 1].data : NULL; | |
22f66b0a | 2811 | |
78c70acd JF |
2812 | switch (type) { |
2813 | case LINE_COMMIT: | |
22f66b0a JF |
2814 | commit = calloc(1, sizeof(struct commit)); |
2815 | if (!commit) | |
2816 | return FALSE; | |
2817 | ||
4c6fabc2 | 2818 | line += STRING_SIZE("commit "); |
b76c2afc | 2819 | |
fe7233c3 | 2820 | view->line[view->lines++].data = commit; |
82e78006 | 2821 | string_copy(commit->id, line); |
c34d9c9f | 2822 | commit->refs = get_refs(commit->id); |
54efb62b | 2823 | commit->graph[commit->graph_size++] = ACS_LTEE; |
78c70acd | 2824 | break; |
22f66b0a | 2825 | |
8855ada4 | 2826 | case LINE_AUTHOR: |
b76c2afc | 2827 | { |
4c6fabc2 | 2828 | char *ident = line + STRING_SIZE("author "); |
b76c2afc JF |
2829 | char *end = strchr(ident, '<'); |
2830 | ||
701e4f5d | 2831 | if (!commit) |
fe7233c3 JF |
2832 | break; |
2833 | ||
b76c2afc | 2834 | if (end) { |
cbbf2d1b JF |
2835 | char *email = end + 1; |
2836 | ||
b76c2afc | 2837 | for (; end > ident && isspace(end[-1]); end--) ; |
cbbf2d1b JF |
2838 | |
2839 | if (end == ident && *email) { | |
2840 | ident = email; | |
2841 | end = strchr(ident, '>'); | |
2842 | for (; end > ident && isspace(end[-1]); end--) ; | |
2843 | } | |
b76c2afc JF |
2844 | *end = 0; |
2845 | } | |
2846 | ||
cbbf2d1b JF |
2847 | /* End is NULL or ident meaning there's no author. */ |
2848 | if (end <= ident) | |
2849 | ident = "Unknown"; | |
2850 | ||
82e78006 | 2851 | string_copy(commit->author, ident); |
b76c2afc | 2852 | |
4c6fabc2 | 2853 | /* Parse epoch and timezone */ |
b76c2afc JF |
2854 | if (end) { |
2855 | char *secs = strchr(end + 1, '>'); | |
2856 | char *zone; | |
2857 | time_t time; | |
2858 | ||
2859 | if (!secs || secs[1] != ' ') | |
2860 | break; | |
2861 | ||
2862 | secs += 2; | |
2863 | time = (time_t) atol(secs); | |
2864 | zone = strchr(secs, ' '); | |
4c6fabc2 | 2865 | if (zone && strlen(zone) == STRING_SIZE(" +0700")) { |
b76c2afc JF |
2866 | long tz; |
2867 | ||
2868 | zone++; | |
2869 | tz = ('0' - zone[1]) * 60 * 60 * 10; | |
2870 | tz += ('0' - zone[2]) * 60 * 60; | |
2871 | tz += ('0' - zone[3]) * 60; | |
2872 | tz += ('0' - zone[4]) * 60; | |
2873 | ||
2874 | if (zone[0] == '-') | |
2875 | tz = -tz; | |
2876 | ||
2877 | time -= tz; | |
2878 | } | |
2879 | gmtime_r(&time, &commit->time); | |
2880 | } | |
2881 | break; | |
2882 | } | |
78c70acd | 2883 | default: |
701e4f5d | 2884 | if (!commit) |
2e8488b4 JF |
2885 | break; |
2886 | ||
2887 | /* Fill in the commit title if it has not already been set. */ | |
2e8488b4 JF |
2888 | if (commit->title[0]) |
2889 | break; | |
2890 | ||
2891 | /* Require titles to start with a non-space character at the | |
2892 | * offset used by git log. */ | |
eb98559e JF |
2893 | /* FIXME: More gracefull handling of titles; append "..." to |
2894 | * shortened titles, etc. */ | |
2e8488b4 | 2895 | if (strncmp(line, " ", 4) || |
eb98559e | 2896 | isspace(line[4])) |
82e78006 JF |
2897 | break; |
2898 | ||
2899 | string_copy(commit->title, line + 4); | |
22f66b0a JF |
2900 | } |
2901 | ||
2902 | return TRUE; | |
2903 | } | |
2904 | ||
6b161b31 | 2905 | static bool |
fe7233c3 | 2906 | main_enter(struct view *view, struct line *line) |
b801d8b2 | 2907 | { |
b3a54cba JF |
2908 | enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT; |
2909 | ||
2910 | open_view(view, REQ_VIEW_DIFF, flags); | |
6b161b31 | 2911 | return TRUE; |
b801d8b2 JF |
2912 | } |
2913 | ||
4af34daa JF |
2914 | static bool |
2915 | main_grep(struct view *view, struct line *line) | |
2916 | { | |
2917 | struct commit *commit = line->data; | |
2918 | enum { S_TITLE, S_AUTHOR, S_DATE, S_END } state; | |
2919 | char buf[DATE_COLS + 1]; | |
2920 | regmatch_t pmatch; | |
2921 | ||
2922 | for (state = S_TITLE; state < S_END; state++) { | |
2923 | char *text; | |
2924 | ||
2925 | switch (state) { | |
2926 | case S_TITLE: text = commit->title; break; | |
2927 | case S_AUTHOR: text = commit->author; break; | |
2928 | case S_DATE: | |
2929 | if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time)) | |
2930 | continue; | |
2931 | text = buf; | |
2932 | break; | |
2933 | ||
2934 | default: | |
2935 | return FALSE; | |
2936 | } | |
2937 | ||
b77b2cb8 | 2938 | if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH) |
4af34daa JF |
2939 | return TRUE; |
2940 | } | |
2941 | ||
2942 | return FALSE; | |
2943 | } | |
2944 | ||
d720de4b JF |
2945 | static void |
2946 | main_select(struct view *view, struct line *line) | |
2947 | { | |
2948 | struct commit *commit = line->data; | |
2949 | ||
2950 | string_copy(view->ref, commit->id); | |
2951 | string_copy(ref_commit, view->ref); | |
2952 | } | |
2953 | ||
6b161b31 | 2954 | static struct view_ops main_ops = { |
6734f6b9 | 2955 | "commit", |
6b161b31 JF |
2956 | main_draw, |
2957 | main_read, | |
2958 | main_enter, | |
4af34daa | 2959 | main_grep, |
d720de4b | 2960 | main_select, |
6b161b31 | 2961 | }; |
2e8488b4 | 2962 | |
c34d9c9f | 2963 | |
6b161b31 | 2964 | /* |
10e290ee JF |
2965 | * Unicode / UTF-8 handling |
2966 | * | |
2967 | * NOTE: Much of the following code for dealing with unicode is derived from | |
2968 | * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is | |
2969 | * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28. | |
2970 | */ | |
2971 | ||
2972 | /* I've (over)annotated a lot of code snippets because I am not entirely | |
2973 | * confident that the approach taken by this small UTF-8 interface is correct. | |
2974 | * --jonas */ | |
2975 | ||
2976 | static inline int | |
2977 | unicode_width(unsigned long c) | |
2978 | { | |
2979 | if (c >= 0x1100 && | |
2980 | (c <= 0x115f /* Hangul Jamo */ | |
2981 | || c == 0x2329 | |
2982 | || c == 0x232a | |
2983 | || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f) | |
f97f4012 | 2984 | /* CJK ... Yi */ |
10e290ee JF |
2985 | || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */ |
2986 | || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */ | |
2987 | || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */ | |
2988 | || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */ | |
2989 | || (c >= 0xffe0 && c <= 0xffe6) | |
2990 | || (c >= 0x20000 && c <= 0x2fffd) | |
2991 | || (c >= 0x30000 && c <= 0x3fffd))) | |
2992 | return 2; | |
2993 | ||
2994 | return 1; | |
2995 | } | |
2996 | ||
2997 | /* Number of bytes used for encoding a UTF-8 character indexed by first byte. | |
2998 | * Illegal bytes are set one. */ | |
2999 | static const unsigned char utf8_bytes[256] = { | |
3000 | 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, | |
3001 | 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, | |
3002 | 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, | |
3003 | 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, | |
3004 | 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, | |
3005 | 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, | |
3006 | 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, | |
3007 | 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, | |
3008 | }; | |
3009 | ||
3010 | /* Decode UTF-8 multi-byte representation into a unicode character. */ | |
3011 | static inline unsigned long | |
3012 | utf8_to_unicode(const char *string, size_t length) | |
3013 | { | |
3014 | unsigned long unicode; | |
3015 | ||
3016 | switch (length) { | |
3017 | case 1: | |
3018 | unicode = string[0]; | |
3019 | break; | |
3020 | case 2: | |
3021 | unicode = (string[0] & 0x1f) << 6; | |
3022 | unicode += (string[1] & 0x3f); | |
3023 | break; | |
3024 | case 3: | |
3025 | unicode = (string[0] & 0x0f) << 12; | |
3026 | unicode += ((string[1] & 0x3f) << 6); | |
3027 | unicode += (string[2] & 0x3f); | |
3028 | break; | |
3029 | case 4: | |
3030 | unicode = (string[0] & 0x0f) << 18; | |
3031 | unicode += ((string[1] & 0x3f) << 12); | |
3032 | unicode += ((string[2] & 0x3f) << 6); | |
3033 | unicode += (string[3] & 0x3f); | |
3034 | break; | |
3035 | case 5: | |
3036 | unicode = (string[0] & 0x0f) << 24; | |
3037 | unicode += ((string[1] & 0x3f) << 18); | |
3038 | unicode += ((string[2] & 0x3f) << 12); | |
3039 | unicode += ((string[3] & 0x3f) << 6); | |
3040 | unicode += (string[4] & 0x3f); | |
3041 | break; | |
68b6e0eb | 3042 | case 6: |
10e290ee JF |
3043 | unicode = (string[0] & 0x01) << 30; |
3044 | unicode += ((string[1] & 0x3f) << 24); | |
3045 | unicode += ((string[2] & 0x3f) << 18); | |
3046 | unicode += ((string[3] & 0x3f) << 12); | |
3047 | unicode += ((string[4] & 0x3f) << 6); | |
3048 | unicode += (string[5] & 0x3f); | |
3049 | break; | |
3050 | default: | |
3051 | die("Invalid unicode length"); | |
3052 | } | |
3053 | ||
3054 | /* Invalid characters could return the special 0xfffd value but NUL | |
3055 | * should be just as good. */ | |
3056 | return unicode > 0xffff ? 0 : unicode; | |
3057 | } | |
3058 | ||
3059 | /* Calculates how much of string can be shown within the given maximum width | |
3060 | * and sets trimmed parameter to non-zero value if all of string could not be | |
3061 | * shown. | |
3062 | * | |
3063 | * Additionally, adds to coloffset how many many columns to move to align with | |
3064 | * the expected position. Takes into account how multi-byte and double-width | |
3065 | * characters will effect the cursor position. | |
3066 | * | |
3067 | * Returns the number of bytes to output from string to satisfy max_width. */ | |
3068 | static size_t | |
3069 | utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed) | |
3070 | { | |
3071 | const char *start = string; | |
3072 | const char *end = strchr(string, '\0'); | |
3073 | size_t mbwidth = 0; | |
3074 | size_t width = 0; | |
3075 | ||
3076 | *trimmed = 0; | |
3077 | ||
3078 | while (string < end) { | |
3079 | int c = *(unsigned char *) string; | |
3080 | unsigned char bytes = utf8_bytes[c]; | |
3081 | size_t ucwidth; | |
3082 | unsigned long unicode; | |
3083 | ||
3084 | if (string + bytes > end) | |
3085 | break; | |
3086 | ||
3087 | /* Change representation to figure out whether | |
3088 | * it is a single- or double-width character. */ | |
3089 | ||
3090 | unicode = utf8_to_unicode(string, bytes); | |
3091 | /* FIXME: Graceful handling of invalid unicode character. */ | |
3092 | if (!unicode) | |
3093 | break; | |
3094 | ||
3095 | ucwidth = unicode_width(unicode); | |
3096 | width += ucwidth; | |
3097 | if (width > max_width) { | |
3098 | *trimmed = 1; | |
3099 | break; | |
3100 | } | |
3101 | ||
3102 | /* The column offset collects the differences between the | |
3103 | * number of bytes encoding a character and the number of | |
3104 | * columns will be used for rendering said character. | |
3105 | * | |
3106 | * So if some character A is encoded in 2 bytes, but will be | |
3107 | * represented on the screen using only 1 byte this will and up | |
3108 | * adding 1 to the multi-byte column offset. | |
3109 | * | |
3110 | * Assumes that no double-width character can be encoding in | |
3111 | * less than two bytes. */ | |
3112 | if (bytes > ucwidth) | |
3113 | mbwidth += bytes - ucwidth; | |
3114 | ||
3115 | string += bytes; | |
3116 | } | |
3117 | ||
3118 | *coloffset += mbwidth; | |
3119 | ||
3120 | return string - start; | |
3121 | } | |
3122 | ||
3123 | ||
3124 | /* | |
6b161b31 JF |
3125 | * Status management |
3126 | */ | |
2e8488b4 | 3127 | |
8855ada4 | 3128 | /* Whether or not the curses interface has been initialized. */ |
68b6e0eb | 3129 | static bool cursed = FALSE; |
8855ada4 | 3130 | |
6b161b31 JF |
3131 | /* The status window is used for polling keystrokes. */ |
3132 | static WINDOW *status_win; | |
4a2909a7 | 3133 | |
21be28fb JF |
3134 | static bool status_empty = TRUE; |
3135 | ||
2e8488b4 | 3136 | /* Update status and title window. */ |
4a2909a7 JF |
3137 | static void |
3138 | report(const char *msg, ...) | |
3139 | { | |
6706b2ba | 3140 | struct view *view = display[current_view]; |
b76c2afc | 3141 | |
ab4af23e JF |
3142 | if (input_mode) |
3143 | return; | |
3144 | ||
21be28fb | 3145 | if (!status_empty || *msg) { |
6706b2ba | 3146 | va_list args; |
4a2909a7 | 3147 | |
6706b2ba | 3148 | va_start(args, msg); |
4b76734f | 3149 | |
6706b2ba JF |
3150 | wmove(status_win, 0, 0); |
3151 | if (*msg) { | |
3152 | vwprintw(status_win, msg, args); | |
21be28fb | 3153 | status_empty = FALSE; |
6706b2ba | 3154 | } else { |
21be28fb | 3155 | status_empty = TRUE; |
6706b2ba | 3156 | } |
390a8262 | 3157 | wclrtoeol(status_win); |
6706b2ba | 3158 | wrefresh(status_win); |
b801d8b2 | 3159 | |
6706b2ba JF |
3160 | va_end(args); |
3161 | } | |
3162 | ||
3163 | update_view_title(view); | |
2bee3bde | 3164 | update_display_cursor(view); |
b801d8b2 JF |
3165 | } |
3166 | ||
6b161b31 JF |
3167 | /* Controls when nodelay should be in effect when polling user input. */ |
3168 | static void | |
1ba2ae4b | 3169 | set_nonblocking_input(bool loading) |
b801d8b2 | 3170 | { |
6706b2ba | 3171 | static unsigned int loading_views; |
b801d8b2 | 3172 | |
6706b2ba JF |
3173 | if ((loading == FALSE && loading_views-- == 1) || |
3174 | (loading == TRUE && loading_views++ == 0)) | |
1ba2ae4b | 3175 | nodelay(status_win, loading); |
6b161b31 JF |
3176 | } |
3177 | ||
3178 | static void | |
3179 | init_display(void) | |
3180 | { | |
3181 | int x, y; | |
b76c2afc | 3182 | |
6908bdbd JF |
3183 | /* Initialize the curses library */ |
3184 | if (isatty(STDIN_FILENO)) { | |
8855ada4 | 3185 | cursed = !!initscr(); |
6908bdbd JF |
3186 | } else { |
3187 | /* Leave stdin and stdout alone when acting as a pager. */ | |
3188 | FILE *io = fopen("/dev/tty", "r+"); | |
3189 | ||
e6f60674 JF |
3190 | if (!io) |
3191 | die("Failed to open /dev/tty"); | |
8855ada4 | 3192 | cursed = !!newterm(NULL, io, io); |
6908bdbd JF |
3193 | } |
3194 | ||
8855ada4 JF |
3195 | if (!cursed) |
3196 | die("Failed to initialize curses"); | |
3197 | ||
2e8488b4 JF |
3198 | nonl(); /* Tell curses not to do NL->CR/NL on output */ |
3199 | cbreak(); /* Take input chars one at a time, no wait for \n */ | |
3200 | noecho(); /* Don't echo input */ | |
b801d8b2 | 3201 | leaveok(stdscr, TRUE); |
b801d8b2 JF |
3202 | |
3203 | if (has_colors()) | |
3204 | init_colors(); | |
3205 | ||
3206 | getmaxyx(stdscr, y, x); | |
3207 | status_win = newwin(1, 0, y - 1, 0); | |
3208 | if (!status_win) | |
3209 | die("Failed to create status window"); | |
3210 | ||
3211 | /* Enable keyboard mapping */ | |
3212 | keypad(status_win, TRUE); | |
78c70acd | 3213 | wbkgdset(status_win, get_line_attr(LINE_STATUS)); |
6b161b31 JF |
3214 | } |
3215 | ||
4af34daa | 3216 | static char * |
cb9e48c1 | 3217 | read_prompt(const char *prompt) |
ef5404a4 JF |
3218 | { |
3219 | enum { READING, STOP, CANCEL } status = READING; | |
9e21ce5c | 3220 | static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")]; |
ef5404a4 JF |
3221 | int pos = 0; |
3222 | ||
3223 | while (status == READING) { | |
3224 | struct view *view; | |
3225 | int i, key; | |
3226 | ||
ab4af23e JF |
3227 | input_mode = TRUE; |
3228 | ||
699ae55b | 3229 | foreach_view (view, i) |
ef5404a4 JF |
3230 | update_view(view); |
3231 | ||
ab4af23e JF |
3232 | input_mode = FALSE; |
3233 | ||
3234 | mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf); | |
3235 | wclrtoeol(status_win); | |
3236 | ||
ef5404a4 JF |
3237 | /* Refresh, accept single keystroke of input */ |
3238 | key = wgetch(status_win); | |
3239 | switch (key) { | |
3240 | case KEY_RETURN: | |
3241 | case KEY_ENTER: | |
3242 | case '\n': | |
3243 | status = pos ? STOP : CANCEL; | |
3244 | break; | |
3245 | ||
3246 | case KEY_BACKSPACE: | |
3247 | if (pos > 0) | |
3248 | pos--; | |
3249 | else | |
3250 | status = CANCEL; | |
3251 | break; | |
3252 | ||
3253 | case KEY_ESC: | |
3254 | status = CANCEL; | |
3255 | break; | |
3256 | ||
3257 | case ERR: | |
3258 | break; | |
3259 | ||
3260 | default: | |
3261 | if (pos >= sizeof(buf)) { | |
3262 | report("Input string too long"); | |
9e21ce5c | 3263 | return NULL; |
ef5404a4 JF |
3264 | } |
3265 | ||
3266 | if (isprint(key)) | |
3267 | buf[pos++] = (char) key; | |
3268 | } | |
3269 | } | |
3270 | ||
7a06ebdf JF |
3271 | /* Clear the status window */ |
3272 | status_empty = FALSE; | |
3273 | report(""); | |
3274 | ||
3275 | if (status == CANCEL) | |
9e21ce5c | 3276 | return NULL; |
ef5404a4 JF |
3277 | |
3278 | buf[pos++] = 0; | |
ef5404a4 | 3279 | |
9e21ce5c | 3280 | return buf; |
ef5404a4 | 3281 | } |
c34d9c9f JF |
3282 | |
3283 | /* | |
3284 | * Repository references | |
3285 | */ | |
3286 | ||
3287 | static struct ref *refs; | |
3a91b75e | 3288 | static size_t refs_size; |
c34d9c9f | 3289 | |
1307df1a JF |
3290 | /* Id <-> ref store */ |
3291 | static struct ref ***id_refs; | |
3292 | static size_t id_refs_size; | |
3293 | ||
c34d9c9f JF |
3294 | static struct ref ** |
3295 | get_refs(char *id) | |
3296 | { | |
1307df1a JF |
3297 | struct ref ***tmp_id_refs; |
3298 | struct ref **ref_list = NULL; | |
3299 | size_t ref_list_size = 0; | |
c34d9c9f JF |
3300 | size_t i; |
3301 | ||
1307df1a JF |
3302 | for (i = 0; i < id_refs_size; i++) |
3303 | if (!strcmp(id, id_refs[i][0]->id)) | |
3304 | return id_refs[i]; | |
3305 | ||
3306 | tmp_id_refs = realloc(id_refs, (id_refs_size + 1) * sizeof(*id_refs)); | |
3307 | if (!tmp_id_refs) | |
3308 | return NULL; | |
3309 | ||
3310 | id_refs = tmp_id_refs; | |
3311 | ||
c34d9c9f JF |
3312 | for (i = 0; i < refs_size; i++) { |
3313 | struct ref **tmp; | |
3314 | ||
3315 | if (strcmp(id, refs[i].id)) | |
3316 | continue; | |
3317 | ||
1307df1a | 3318 | tmp = realloc(ref_list, (ref_list_size + 1) * sizeof(*ref_list)); |
c34d9c9f | 3319 | if (!tmp) { |
1307df1a JF |
3320 | if (ref_list) |
3321 | free(ref_list); | |
c34d9c9f JF |
3322 | return NULL; |
3323 | } | |
3324 | ||
1307df1a JF |
3325 | ref_list = tmp; |
3326 | if (ref_list_size > 0) | |
3327 | ref_list[ref_list_size - 1]->next = 1; | |
3328 | ref_list[ref_list_size] = &refs[i]; | |
3af8774e JF |
3329 | |
3330 | /* XXX: The properties of the commit chains ensures that we can | |
3331 | * safely modify the shared ref. The repo references will | |
3332 | * always be similar for the same id. */ | |
1307df1a JF |
3333 | ref_list[ref_list_size]->next = 0; |
3334 | ref_list_size++; | |
c34d9c9f JF |
3335 | } |
3336 | ||
1307df1a JF |
3337 | if (ref_list) |
3338 | id_refs[id_refs_size++] = ref_list; | |
3339 | ||
3340 | return ref_list; | |
c34d9c9f JF |
3341 | } |
3342 | ||
3343 | static int | |
d0cea5f9 | 3344 | read_ref(char *id, int idlen, char *name, int namelen) |
c34d9c9f | 3345 | { |
d0cea5f9 JF |
3346 | struct ref *ref; |
3347 | bool tag = FALSE; | |
d0cea5f9 | 3348 | |
8b0297ae JF |
3349 | if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) { |
3350 | /* Commits referenced by tags has "^{}" appended. */ | |
3351 | if (name[namelen - 1] != '}') | |
3352 | return OK; | |
3353 | ||
d0cea5f9 JF |
3354 | while (namelen > 0 && name[namelen] != '^') |
3355 | namelen--; | |
c34d9c9f | 3356 | |
d0cea5f9 | 3357 | tag = TRUE; |
8b0297ae JF |
3358 | namelen -= STRING_SIZE("refs/tags/"); |
3359 | name += STRING_SIZE("refs/tags/"); | |
c34d9c9f | 3360 | |
d0cea5f9 | 3361 | } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) { |
8b0297ae JF |
3362 | namelen -= STRING_SIZE("refs/heads/"); |
3363 | name += STRING_SIZE("refs/heads/"); | |
c34d9c9f | 3364 | |
d0cea5f9 JF |
3365 | } else if (!strcmp(name, "HEAD")) { |
3366 | return OK; | |
3367 | } | |
6706b2ba | 3368 | |
d0cea5f9 JF |
3369 | refs = realloc(refs, sizeof(*refs) * (refs_size + 1)); |
3370 | if (!refs) | |
3371 | return ERR; | |
c34d9c9f | 3372 | |
d0cea5f9 | 3373 | ref = &refs[refs_size++]; |
8b0297ae | 3374 | ref->name = malloc(namelen + 1); |
d0cea5f9 JF |
3375 | if (!ref->name) |
3376 | return ERR; | |
3af8774e | 3377 | |
8b0297ae JF |
3378 | strncpy(ref->name, name, namelen); |
3379 | ref->name[namelen] = 0; | |
d0cea5f9 JF |
3380 | ref->tag = tag; |
3381 | string_copy(ref->id, id); | |
3af8774e | 3382 | |
d0cea5f9 JF |
3383 | return OK; |
3384 | } | |
c34d9c9f | 3385 | |
d0cea5f9 JF |
3386 | static int |
3387 | load_refs(void) | |
3388 | { | |
3389 | const char *cmd_env = getenv("TIG_LS_REMOTE"); | |
3390 | const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE; | |
c34d9c9f | 3391 | |
4a63c884 | 3392 | return read_properties(popen(cmd, "r"), "\t", read_ref); |
d0cea5f9 | 3393 | } |
c34d9c9f | 3394 | |
d0cea5f9 | 3395 | static int |
14c778a6 | 3396 | read_repo_config_option(char *name, int namelen, char *value, int valuelen) |
d0cea5f9 | 3397 | { |
22913179 | 3398 | if (!strcmp(name, "i18n.commitencoding")) |
d0cea5f9 | 3399 | string_copy(opt_encoding, value); |
c34d9c9f | 3400 | |
c34d9c9f JF |
3401 | return OK; |
3402 | } | |
3403 | ||
4670cf89 | 3404 | static int |
14c778a6 | 3405 | load_repo_config(void) |
4670cf89 | 3406 | { |
66749723 | 3407 | return read_properties(popen("git repo-config --list", "r"), |
14c778a6 | 3408 | "=", read_repo_config_option); |
d0cea5f9 JF |
3409 | } |
3410 | ||
3411 | static int | |
4a63c884 | 3412 | read_properties(FILE *pipe, const char *separators, |
d0cea5f9 JF |
3413 | int (*read_property)(char *, int, char *, int)) |
3414 | { | |
4670cf89 JF |
3415 | char buffer[BUFSIZ]; |
3416 | char *name; | |
d0cea5f9 | 3417 | int state = OK; |
4670cf89 JF |
3418 | |
3419 | if (!pipe) | |
3420 | return ERR; | |
3421 | ||
d0cea5f9 | 3422 | while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) { |
4a63c884 JF |
3423 | char *value; |
3424 | size_t namelen; | |
3425 | size_t valuelen; | |
4670cf89 | 3426 | |
4a63c884 JF |
3427 | name = chomp_string(name); |
3428 | namelen = strcspn(name, separators); | |
3429 | ||
3430 | if (name[namelen]) { | |
3431 | name[namelen] = 0; | |
3432 | value = chomp_string(name + namelen + 1); | |
d0cea5f9 | 3433 | valuelen = strlen(value); |
4670cf89 | 3434 | |
d0cea5f9 | 3435 | } else { |
d0cea5f9 JF |
3436 | value = ""; |
3437 | valuelen = 0; | |
4670cf89 | 3438 | } |
d0cea5f9 | 3439 | |
3c3801c2 | 3440 | state = read_property(name, namelen, value, valuelen); |
4670cf89 JF |
3441 | } |
3442 | ||
d0cea5f9 JF |
3443 | if (state != ERR && ferror(pipe)) |
3444 | state = ERR; | |
4670cf89 JF |
3445 | |
3446 | pclose(pipe); | |
3447 | ||
d0cea5f9 | 3448 | return state; |
4670cf89 JF |
3449 | } |
3450 | ||
d0cea5f9 | 3451 | |
6b161b31 JF |
3452 | /* |
3453 | * Main | |
3454 | */ | |
3455 | ||
b5c9e67f | 3456 | static void __NORETURN |
6b161b31 JF |
3457 | quit(int sig) |
3458 | { | |
8855ada4 JF |
3459 | /* XXX: Restore tty modes and let the OS cleanup the rest! */ |
3460 | if (cursed) | |
3461 | endwin(); | |
6b161b31 JF |
3462 | exit(0); |
3463 | } | |
3464 | ||
c6704a4e JF |
3465 | static void __NORETURN |
3466 | die(const char *err, ...) | |
6b161b31 JF |
3467 | { |
3468 | va_list args; | |
3469 | ||
3470 | endwin(); | |
3471 | ||
3472 | va_start(args, err); | |
3473 | fputs("tig: ", stderr); | |
3474 | vfprintf(stderr, err, args); | |
3475 | fputs("\n", stderr); | |
3476 | va_end(args); | |
3477 | ||
3478 | exit(1); | |
3479 | } | |
3480 | ||
3481 | int | |
3482 | main(int argc, char *argv[]) | |
3483 | { | |
1ba2ae4b | 3484 | struct view *view; |
6b161b31 | 3485 | enum request request; |
1ba2ae4b | 3486 | size_t i; |
6b161b31 JF |
3487 | |
3488 | signal(SIGINT, quit); | |
3489 | ||
6b68fd24 JF |
3490 | if (setlocale(LC_ALL, "")) { |
3491 | string_copy(opt_codeset, nl_langinfo(CODESET)); | |
3492 | } | |
3493 | ||
660e09ad JF |
3494 | if (load_options() == ERR) |
3495 | die("Failed to load user config."); | |
3496 | ||
3497 | /* Load the repo config file so options can be overwritten from | |
afdc35b3 | 3498 | * the command line. */ |
14c778a6 | 3499 | if (load_repo_config() == ERR) |
afdc35b3 JF |
3500 | die("Failed to load repo config."); |
3501 | ||
8855ada4 | 3502 | if (!parse_options(argc, argv)) |
6b161b31 JF |
3503 | return 0; |
3504 | ||
6b68fd24 JF |
3505 | if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) { |
3506 | opt_iconv = iconv_open(opt_codeset, opt_encoding); | |
20f4b4a3 | 3507 | if (opt_iconv == ICONV_NONE) |
6b68fd24 JF |
3508 | die("Failed to initialize character set conversion"); |
3509 | } | |
3510 | ||
c34d9c9f JF |
3511 | if (load_refs() == ERR) |
3512 | die("Failed to load refs."); | |
3513 | ||
7bb55251 JF |
3514 | /* Require a git repository unless when running in pager mode. */ |
3515 | if (refs_size == 0 && opt_request != REQ_VIEW_PAGER) | |
3516 | die("Not a git repository"); | |
3517 | ||
1ba2ae4b JF |
3518 | for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++) |
3519 | view->cmd_env = getenv(view->cmd_env); | |
3520 | ||
6b161b31 JF |
3521 | request = opt_request; |
3522 | ||
3523 | init_display(); | |
b801d8b2 JF |
3524 | |
3525 | while (view_driver(display[current_view], request)) { | |
6b161b31 | 3526 | int key; |
b801d8b2 JF |
3527 | int i; |
3528 | ||
699ae55b | 3529 | foreach_view (view, i) |
6b161b31 | 3530 | update_view(view); |
b801d8b2 JF |
3531 | |
3532 | /* Refresh, accept single keystroke of input */ | |
6b161b31 | 3533 | key = wgetch(status_win); |
8b534a13 JF |
3534 | if (key == ERR) |
3535 | continue; | |
04e2b7b2 JF |
3536 | |
3537 | request = get_keybinding(display[current_view]->keymap, key); | |
03a93dbb | 3538 | |
6706b2ba | 3539 | /* Some low-level request handling. This keeps access to |
fac7db6c JF |
3540 | * status_win restricted. */ |
3541 | switch (request) { | |
3542 | case REQ_PROMPT: | |
9e21ce5c JF |
3543 | { |
3544 | char *cmd = read_prompt(":"); | |
3545 | ||
3546 | if (cmd && string_format(opt_cmd, "git %s", cmd)) { | |
3547 | if (strncmp(cmd, "show", 4) && isspace(cmd[4])) { | |
3548 | opt_request = REQ_VIEW_DIFF; | |
3549 | } else { | |
3550 | opt_request = REQ_VIEW_PAGER; | |
3551 | } | |
3552 | break; | |
3553 | } | |
fac7db6c | 3554 | |
1d754561 | 3555 | request = REQ_NONE; |
9e21ce5c JF |
3556 | break; |
3557 | } | |
4af34daa JF |
3558 | case REQ_SEARCH: |
3559 | case REQ_SEARCH_BACK: | |
3560 | { | |
3561 | const char *prompt = request == REQ_SEARCH | |
3562 | ? "/" : "?"; | |
3563 | char *search = read_prompt(prompt); | |
3564 | ||
3565 | if (search) | |
3566 | string_copy(opt_search, search); | |
3567 | else | |
3568 | request = REQ_NONE; | |
3569 | break; | |
3570 | } | |
fac7db6c JF |
3571 | case REQ_SCREEN_RESIZE: |
3572 | { | |
3573 | int height, width; | |
3574 | ||
3575 | getmaxyx(stdscr, height, width); | |
3576 | ||
3577 | /* Resize the status view and let the view driver take | |
3578 | * care of resizing the displayed views. */ | |
3579 | wresize(status_win, 1, width); | |
3580 | mvwin(status_win, height - 1, 0); | |
3581 | wrefresh(status_win); | |
3582 | break; | |
3583 | } | |
3584 | default: | |
3585 | break; | |
03a93dbb | 3586 | } |
b801d8b2 JF |
3587 | } |
3588 | ||
3589 | quit(0); | |
3590 | ||
3591 | return 0; | |
3592 | } |