Commit | Line | Data |
---|---|---|
4a2909a7 | 1 | /* Copyright (c) 2006 Jonas Fonseca <fonseca@diku.dk> |
192d9a60 | 2 | * |
5cfbde75 JF |
3 | * This program is free software; you can redistribute it and/or |
4 | * modify it under the terms of the GNU General Public License as | |
5 | * published by the Free Software Foundation; either version 2 of | |
6 | * the License, or (at your option) any later version. | |
192d9a60 JF |
7 | * |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | */ | |
b801d8b2 | 13 | |
b76c2afc | 14 | #ifndef VERSION |
8c11094f | 15 | #define VERSION "tig-0.3" |
b76c2afc JF |
16 | #endif |
17 | ||
8855ada4 JF |
18 | #ifndef DEBUG |
19 | #define NDEBUG | |
20 | #endif | |
21 | ||
22f66b0a | 22 | #include <assert.h> |
4c6fabc2 | 23 | #include <errno.h> |
22f66b0a JF |
24 | #include <ctype.h> |
25 | #include <signal.h> | |
b801d8b2 | 26 | #include <stdarg.h> |
b801d8b2 | 27 | #include <stdio.h> |
22f66b0a | 28 | #include <stdlib.h> |
b801d8b2 | 29 | #include <string.h> |
6908bdbd | 30 | #include <unistd.h> |
b76c2afc | 31 | #include <time.h> |
b801d8b2 JF |
32 | |
33 | #include <curses.h> | |
b801d8b2 | 34 | |
e2da526d JF |
35 | #if __GNUC__ >= 3 |
36 | #define __NORETURN __attribute__((__noreturn__)) | |
37 | #else | |
38 | #define __NORETURN | |
39 | #endif | |
40 | ||
41 | static void __NORETURN die(const char *err, ...); | |
b801d8b2 | 42 | static void report(const char *msg, ...); |
4a63c884 | 43 | static int read_properties(FILE *pipe, const char *separators, int (*read)(char *, int, char *, int)); |
1ba2ae4b | 44 | static void set_nonblocking_input(bool loading); |
10e290ee | 45 | static size_t utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed); |
6b161b31 JF |
46 | |
47 | #define ABS(x) ((x) >= 0 ? (x) : -(x)) | |
48 | #define MIN(x, y) ((x) < (y) ? (x) : (y)) | |
49 | ||
50 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) | |
51 | #define STRING_SIZE(x) (sizeof(x) - 1) | |
b76c2afc | 52 | |
2e8488b4 JF |
53 | #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */ |
54 | #define SIZEOF_CMD 1024 /* Size of command buffer. */ | |
54efb62b | 55 | #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */ |
b801d8b2 | 56 | |
82e78006 JF |
57 | /* This color name can be used to refer to the default term colors. */ |
58 | #define COLOR_DEFAULT (-1) | |
78c70acd | 59 | |
82e78006 | 60 | /* The format and size of the date column in the main view. */ |
4c6fabc2 | 61 | #define DATE_FORMAT "%Y-%m-%d %H:%M" |
6b161b31 | 62 | #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ") |
4c6fabc2 | 63 | |
10e290ee JF |
64 | #define AUTHOR_COLS 20 |
65 | ||
a28bcc22 | 66 | /* The default interval between line numbers. */ |
4a2909a7 | 67 | #define NUMBER_INTERVAL 1 |
82e78006 | 68 | |
6706b2ba JF |
69 | #define TABSIZE 8 |
70 | ||
a28bcc22 JF |
71 | #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3) |
72 | ||
8eb62770 JF |
73 | #define TIG_LS_REMOTE \ |
74 | "git ls-remote . 2>/dev/null" | |
75 | ||
76 | #define TIG_DIFF_CMD \ | |
77 | "git show --patch-with-stat --find-copies-harder -B -C %s" | |
78 | ||
79 | #define TIG_LOG_CMD \ | |
80 | "git log --cc --stat -n100 %s" | |
81 | ||
82 | #define TIG_MAIN_CMD \ | |
83 | "git log --topo-order --stat --pretty=raw %s" | |
84 | ||
85 | /* XXX: Needs to be defined to the empty string. */ | |
86 | #define TIG_HELP_CMD "" | |
87 | #define TIG_PAGER_CMD "" | |
88 | ||
8855ada4 | 89 | /* Some ascii-shorthands fitted into the ncurses namespace. */ |
a28bcc22 JF |
90 | #define KEY_TAB '\t' |
91 | #define KEY_RETURN '\r' | |
4a2909a7 JF |
92 | #define KEY_ESC 27 |
93 | ||
6706b2ba | 94 | |
c34d9c9f | 95 | struct ref { |
468876c9 JF |
96 | char *name; /* Ref name; tag or head names are shortened. */ |
97 | char id[41]; /* Commit SHA1 ID */ | |
98 | unsigned int tag:1; /* Is it a tag? */ | |
99 | unsigned int next:1; /* For ref lists: are there more refs? */ | |
c34d9c9f JF |
100 | }; |
101 | ||
ff26aa29 | 102 | static struct ref **get_refs(char *id); |
4c6fabc2 | 103 | |
660e09ad JF |
104 | struct int_map { |
105 | const char *name; | |
106 | int namelen; | |
107 | int value; | |
108 | }; | |
109 | ||
110 | static int | |
111 | set_from_int_map(struct int_map *map, size_t map_size, | |
112 | int *value, const char *name, int namelen) | |
113 | { | |
114 | ||
115 | int i; | |
116 | ||
117 | for (i = 0; i < map_size; i++) | |
118 | if (namelen == map[i].namelen && | |
119 | !strncasecmp(name, map[i].name, namelen)) { | |
120 | *value = map[i].value; | |
121 | return OK; | |
122 | } | |
123 | ||
124 | return ERR; | |
125 | } | |
126 | ||
6706b2ba | 127 | |
03a93dbb JF |
128 | /* |
129 | * String helpers | |
130 | */ | |
78c70acd | 131 | |
82e78006 | 132 | static inline void |
4685845e | 133 | string_ncopy(char *dst, const char *src, int dstlen) |
82e78006 JF |
134 | { |
135 | strncpy(dst, src, dstlen - 1); | |
136 | dst[dstlen - 1] = 0; | |
03a93dbb | 137 | |
82e78006 JF |
138 | } |
139 | ||
140 | /* Shorthand for safely copying into a fixed buffer. */ | |
141 | #define string_copy(dst, src) \ | |
142 | string_ncopy(dst, src, sizeof(dst)) | |
143 | ||
4a63c884 JF |
144 | static char * |
145 | chomp_string(char *name) | |
146 | { | |
147 | int namelen; | |
148 | ||
149 | while (isspace(*name)) | |
150 | name++; | |
151 | ||
152 | namelen = strlen(name) - 1; | |
153 | while (namelen > 0 && isspace(name[namelen])) | |
154 | name[namelen--] = 0; | |
155 | ||
156 | return name; | |
157 | } | |
158 | ||
cc2d1364 JF |
159 | static bool |
160 | string_nformat(char *buf, size_t bufsize, int *bufpos, const char *fmt, ...) | |
161 | { | |
162 | va_list args; | |
163 | int pos = bufpos ? *bufpos : 0; | |
164 | ||
165 | va_start(args, fmt); | |
166 | pos += vsnprintf(buf + pos, bufsize - pos, fmt, args); | |
167 | va_end(args); | |
168 | ||
169 | if (bufpos) | |
170 | *bufpos = pos; | |
171 | ||
172 | return pos >= bufsize ? FALSE : TRUE; | |
173 | } | |
174 | ||
175 | #define string_format(buf, fmt, args...) \ | |
176 | string_nformat(buf, sizeof(buf), NULL, fmt, args) | |
177 | ||
178 | #define string_format_from(buf, from, fmt, args...) \ | |
179 | string_nformat(buf, sizeof(buf), from, fmt, args) | |
6706b2ba | 180 | |
201f5a18 JF |
181 | static int |
182 | string_enum_compare(const char *str1, const char *str2, int len) | |
183 | { | |
184 | size_t i; | |
185 | ||
186 | #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.') | |
187 | ||
188 | /* Diff-Header == DIFF_HEADER */ | |
189 | for (i = 0; i < len; i++) { | |
190 | if (toupper(str1[i]) == toupper(str2[i])) | |
191 | continue; | |
192 | ||
193 | if (string_enum_sep(str1[i]) && | |
194 | string_enum_sep(str2[i])) | |
195 | continue; | |
196 | ||
197 | return str1[i] - str2[i]; | |
198 | } | |
199 | ||
200 | return 0; | |
201 | } | |
202 | ||
03a93dbb JF |
203 | /* Shell quoting |
204 | * | |
205 | * NOTE: The following is a slightly modified copy of the git project's shell | |
206 | * quoting routines found in the quote.c file. | |
207 | * | |
208 | * Help to copy the thing properly quoted for the shell safety. any single | |
209 | * quote is replaced with '\'', any exclamation point is replaced with '\!', | |
210 | * and the whole thing is enclosed in a | |
211 | * | |
212 | * E.g. | |
213 | * original sq_quote result | |
214 | * name ==> name ==> 'name' | |
215 | * a b ==> a b ==> 'a b' | |
216 | * a'b ==> a'\''b ==> 'a'\''b' | |
217 | * a!b ==> a'\!'b ==> 'a'\!'b' | |
218 | */ | |
219 | ||
220 | static size_t | |
221 | sq_quote(char buf[SIZEOF_CMD], size_t bufsize, const char *src) | |
222 | { | |
223 | char c; | |
224 | ||
a9274b95 | 225 | #define BUFPUT(x) do { if (bufsize < SIZEOF_CMD) buf[bufsize++] = (x); } while (0) |
03a93dbb JF |
226 | |
227 | BUFPUT('\''); | |
228 | while ((c = *src++)) { | |
229 | if (c == '\'' || c == '!') { | |
230 | BUFPUT('\''); | |
231 | BUFPUT('\\'); | |
232 | BUFPUT(c); | |
233 | BUFPUT('\''); | |
234 | } else { | |
235 | BUFPUT(c); | |
236 | } | |
237 | } | |
238 | BUFPUT('\''); | |
239 | ||
240 | return bufsize; | |
241 | } | |
242 | ||
82e78006 | 243 | |
24b5b3e0 JF |
244 | /* |
245 | * User requests | |
246 | */ | |
247 | ||
248 | #define REQ_INFO \ | |
249 | /* XXX: Keep the view request first and in sync with views[]. */ \ | |
250 | REQ_GROUP("View switching") \ | |
251 | REQ_(VIEW_MAIN, "Show main view"), \ | |
252 | REQ_(VIEW_DIFF, "Show diff view"), \ | |
253 | REQ_(VIEW_LOG, "Show log view"), \ | |
254 | REQ_(VIEW_HELP, "Show help page"), \ | |
255 | REQ_(VIEW_PAGER, "Show pager view"), \ | |
256 | \ | |
257 | REQ_GROUP("View manipulation") \ | |
258 | REQ_(ENTER, "Enter current line and scroll"), \ | |
259 | REQ_(NEXT, "Move to next"), \ | |
260 | REQ_(PREVIOUS, "Move to previous"), \ | |
261 | REQ_(VIEW_NEXT, "Move focus to next view"), \ | |
262 | REQ_(VIEW_CLOSE, "Close the current view"), \ | |
263 | REQ_(QUIT, "Close all views and quit"), \ | |
264 | \ | |
265 | REQ_GROUP("Cursor navigation") \ | |
266 | REQ_(MOVE_UP, "Move cursor one line up"), \ | |
267 | REQ_(MOVE_DOWN, "Move cursor one line down"), \ | |
268 | REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \ | |
269 | REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \ | |
270 | REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \ | |
271 | REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \ | |
272 | \ | |
273 | REQ_GROUP("Scrolling") \ | |
274 | REQ_(SCROLL_LINE_UP, "Scroll one line up"), \ | |
275 | REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \ | |
276 | REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \ | |
277 | REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \ | |
278 | \ | |
279 | REQ_GROUP("Misc") \ | |
280 | REQ_(PROMPT, "Bring up the prompt"), \ | |
281 | REQ_(SCREEN_UPDATE, "Update the screen"), \ | |
282 | REQ_(SCREEN_REDRAW, "Redraw the screen"), \ | |
283 | REQ_(SCREEN_RESIZE, "Resize the screen"), \ | |
284 | REQ_(SHOW_VERSION, "Show version information"), \ | |
285 | REQ_(STOP_LOADING, "Stop all loading views"), \ | |
54efb62b | 286 | REQ_(TOGGLE_LINENO, "Toggle line numbers"), \ |
04e2b7b2 | 287 | REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization") |
24b5b3e0 JF |
288 | |
289 | ||
290 | /* User action requests. */ | |
291 | enum request { | |
292 | #define REQ_GROUP(help) | |
293 | #define REQ_(req, help) REQ_##req | |
294 | ||
295 | /* Offset all requests to avoid conflicts with ncurses getch values. */ | |
296 | REQ_OFFSET = KEY_MAX + 1, | |
04e2b7b2 JF |
297 | REQ_INFO, |
298 | REQ_UNKNOWN, | |
24b5b3e0 JF |
299 | |
300 | #undef REQ_GROUP | |
301 | #undef REQ_ | |
302 | }; | |
303 | ||
304 | struct request_info { | |
305 | enum request request; | |
04e2b7b2 JF |
306 | char *name; |
307 | int namelen; | |
24b5b3e0 JF |
308 | char *help; |
309 | }; | |
310 | ||
311 | static struct request_info req_info[] = { | |
04e2b7b2 JF |
312 | #define REQ_GROUP(help) { 0, NULL, 0, (help) }, |
313 | #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) } | |
24b5b3e0 JF |
314 | REQ_INFO |
315 | #undef REQ_GROUP | |
316 | #undef REQ_ | |
317 | }; | |
318 | ||
04e2b7b2 JF |
319 | static enum request |
320 | get_request(const char *name) | |
321 | { | |
322 | int namelen = strlen(name); | |
323 | int i; | |
324 | ||
325 | for (i = 0; i < ARRAY_SIZE(req_info); i++) | |
326 | if (req_info[i].namelen == namelen && | |
327 | !string_enum_compare(req_info[i].name, name, namelen)) | |
328 | return req_info[i].request; | |
329 | ||
330 | return REQ_UNKNOWN; | |
331 | } | |
332 | ||
333 | ||
8eb62770 JF |
334 | /* |
335 | * Options | |
336 | */ | |
b76c2afc | 337 | |
4b8c01a3 JF |
338 | static const char usage[] = |
339 | VERSION " (" __DATE__ ")\n" | |
340 | "\n" | |
341 | "Usage: tig [options]\n" | |
342 | " or: tig [options] [--] [git log options]\n" | |
343 | " or: tig [options] log [git log options]\n" | |
344 | " or: tig [options] diff [git diff options]\n" | |
345 | " or: tig [options] show [git show options]\n" | |
346 | " or: tig [options] < [git command output]\n" | |
347 | "\n" | |
348 | "Options:\n" | |
349 | " -l Start up in log view\n" | |
350 | " -d Start up in diff view\n" | |
351 | " -n[I], --line-number[=I] Show line numbers with given interval\n" | |
b3c965c9 | 352 | " -b[N], --tab-size[=N] Set number of spaces for tab expansion\n" |
4b8c01a3 JF |
353 | " -- Mark end of tig options\n" |
354 | " -v, --version Show version and exit\n" | |
355 | " -h, --help Show help message and exit\n"; | |
356 | ||
6706b2ba JF |
357 | /* Option and state variables. */ |
358 | static bool opt_line_number = FALSE; | |
54efb62b | 359 | static bool opt_rev_graph = TRUE; |
2e8488b4 | 360 | static int opt_num_interval = NUMBER_INTERVAL; |
6706b2ba | 361 | static int opt_tab_size = TABSIZE; |
6b161b31 | 362 | static enum request opt_request = REQ_VIEW_MAIN; |
03a93dbb | 363 | static char opt_cmd[SIZEOF_CMD] = ""; |
9989bf60 JF |
364 | static char opt_encoding[20] = ""; |
365 | static bool opt_utf8 = TRUE; | |
6908bdbd | 366 | static FILE *opt_pipe = NULL; |
b76c2afc | 367 | |
6dbf6c19 JF |
368 | enum option_type { |
369 | OPT_NONE, | |
370 | OPT_INT, | |
371 | }; | |
372 | ||
373 | static bool | |
374 | check_option(char *opt, char short_name, char *name, enum option_type type, ...) | |
375 | { | |
376 | va_list args; | |
377 | char *value = ""; | |
378 | int *number; | |
379 | ||
380 | if (opt[0] != '-') | |
381 | return FALSE; | |
382 | ||
383 | if (opt[1] == '-') { | |
384 | int namelen = strlen(name); | |
385 | ||
386 | opt += 2; | |
387 | ||
388 | if (strncmp(opt, name, namelen)) | |
389 | return FALSE; | |
390 | ||
391 | if (opt[namelen] == '=') | |
392 | value = opt + namelen + 1; | |
393 | ||
394 | } else { | |
395 | if (!short_name || opt[1] != short_name) | |
396 | return FALSE; | |
397 | value = opt + 2; | |
398 | } | |
399 | ||
400 | va_start(args, type); | |
401 | if (type == OPT_INT) { | |
402 | number = va_arg(args, int *); | |
403 | if (isdigit(*value)) | |
404 | *number = atoi(value); | |
405 | } | |
406 | va_end(args); | |
407 | ||
408 | return TRUE; | |
409 | } | |
410 | ||
b76c2afc | 411 | /* Returns the index of log or diff command or -1 to exit. */ |
8855ada4 | 412 | static bool |
b76c2afc JF |
413 | parse_options(int argc, char *argv[]) |
414 | { | |
415 | int i; | |
416 | ||
417 | for (i = 1; i < argc; i++) { | |
418 | char *opt = argv[i]; | |
419 | ||
6b161b31 | 420 | if (!strcmp(opt, "-l")) { |
4a2909a7 | 421 | opt_request = REQ_VIEW_LOG; |
6b161b31 JF |
422 | continue; |
423 | } | |
b76c2afc | 424 | |
6b161b31 | 425 | if (!strcmp(opt, "-d")) { |
4a2909a7 | 426 | opt_request = REQ_VIEW_DIFF; |
6b161b31 JF |
427 | continue; |
428 | } | |
b76c2afc | 429 | |
6dbf6c19 | 430 | if (check_option(opt, 'n', "line-number", OPT_INT, &opt_num_interval)) { |
6b161b31 JF |
431 | opt_line_number = TRUE; |
432 | continue; | |
433 | } | |
b76c2afc | 434 | |
6dbf6c19 JF |
435 | if (check_option(opt, 'b', "tab-size", OPT_INT, &opt_tab_size)) { |
436 | opt_tab_size = MIN(opt_tab_size, TABSIZE); | |
6706b2ba JF |
437 | continue; |
438 | } | |
439 | ||
6dbf6c19 | 440 | if (check_option(opt, 'v', "version", OPT_NONE)) { |
b76c2afc | 441 | printf("tig version %s\n", VERSION); |
8855ada4 | 442 | return FALSE; |
6b161b31 | 443 | } |
b76c2afc | 444 | |
6dbf6c19 | 445 | if (check_option(opt, 'h', "help", OPT_NONE)) { |
4b8c01a3 JF |
446 | printf(usage); |
447 | return FALSE; | |
448 | } | |
449 | ||
6908bdbd JF |
450 | if (!strcmp(opt, "--")) { |
451 | i++; | |
452 | break; | |
453 | } | |
03a93dbb | 454 | |
8855ada4 JF |
455 | if (!strcmp(opt, "log") || |
456 | !strcmp(opt, "diff") || | |
457 | !strcmp(opt, "show")) { | |
458 | opt_request = opt[0] == 'l' | |
459 | ? REQ_VIEW_LOG : REQ_VIEW_DIFF; | |
460 | break; | |
461 | } | |
462 | ||
03a93dbb | 463 | if (opt[0] && opt[0] != '-') |
6908bdbd | 464 | break; |
6b161b31 | 465 | |
bf174187 | 466 | die("unknown option '%s'\n\n%s", opt, usage); |
b76c2afc JF |
467 | } |
468 | ||
6908bdbd | 469 | if (!isatty(STDIN_FILENO)) { |
6908bdbd JF |
470 | opt_request = REQ_VIEW_PAGER; |
471 | opt_pipe = stdin; | |
472 | ||
473 | } else if (i < argc) { | |
474 | size_t buf_size; | |
475 | ||
6908bdbd | 476 | if (opt_request == REQ_VIEW_MAIN) |
8855ada4 JF |
477 | /* XXX: This is vulnerable to the user overriding |
478 | * options required for the main view parser. */ | |
6908bdbd JF |
479 | string_copy(opt_cmd, "git log --stat --pretty=raw"); |
480 | else | |
481 | string_copy(opt_cmd, "git"); | |
482 | buf_size = strlen(opt_cmd); | |
483 | ||
484 | while (buf_size < sizeof(opt_cmd) && i < argc) { | |
485 | opt_cmd[buf_size++] = ' '; | |
486 | buf_size = sq_quote(opt_cmd, buf_size, argv[i++]); | |
487 | } | |
488 | ||
489 | if (buf_size >= sizeof(opt_cmd)) | |
490 | die("command too long"); | |
491 | ||
492 | opt_cmd[buf_size] = 0; | |
493 | ||
494 | } | |
495 | ||
afdc35b3 JF |
496 | if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8")) |
497 | opt_utf8 = FALSE; | |
498 | ||
8855ada4 | 499 | return TRUE; |
b76c2afc JF |
500 | } |
501 | ||
502 | ||
54efb62b JF |
503 | /* |
504 | * Line-oriented content detection. | |
505 | */ | |
506 | ||
2e8488b4 | 507 | #define LINE_INFO \ |
660e09ad | 508 | LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
509 | LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
510 | LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
511 | LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \ | |
660e09ad JF |
512 | LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
513 | LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
514 | LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
515 | LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
516 | LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
517 | LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
518 | LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
519 | LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
520 | LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
521 | LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
6908bdbd | 522 | LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
8855ada4 | 523 | LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
6908bdbd JF |
524 | LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
525 | LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
8855ada4 JF |
526 | LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
527 | LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
7b99a34c | 528 | LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
529 | LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \ |
530 | LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
531 | LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
8855ada4 | 532 | LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
a28bcc22 | 533 | LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
a28bcc22 | 534 | LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
535 | LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \ |
536 | LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \ | |
537 | LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
6b161b31 JF |
538 | LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \ |
539 | LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \ | |
a28bcc22 JF |
540 | LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
541 | LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
542 | LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \ | |
c34d9c9f JF |
543 | LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
544 | LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \ | |
660e09ad | 545 | LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \ |
660e09ad | 546 | |
78c70acd | 547 | enum line_type { |
2e8488b4 JF |
548 | #define LINE(type, line, fg, bg, attr) \ |
549 | LINE_##type | |
550 | LINE_INFO | |
551 | #undef LINE | |
78c70acd JF |
552 | }; |
553 | ||
554 | struct line_info { | |
660e09ad JF |
555 | const char *name; /* Option name. */ |
556 | int namelen; /* Size of option name. */ | |
4685845e | 557 | const char *line; /* The start of line to match. */ |
2e8488b4 JF |
558 | int linelen; /* Size of string to match. */ |
559 | int fg, bg, attr; /* Color and text attributes for the lines. */ | |
78c70acd JF |
560 | }; |
561 | ||
2e8488b4 | 562 | static struct line_info line_info[] = { |
78c70acd | 563 | #define LINE(type, line, fg, bg, attr) \ |
660e09ad | 564 | { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) } |
2e8488b4 JF |
565 | LINE_INFO |
566 | #undef LINE | |
78c70acd JF |
567 | }; |
568 | ||
2e8488b4 JF |
569 | static enum line_type |
570 | get_line_type(char *line) | |
78c70acd JF |
571 | { |
572 | int linelen = strlen(line); | |
a28bcc22 | 573 | enum line_type type; |
78c70acd | 574 | |
a28bcc22 | 575 | for (type = 0; type < ARRAY_SIZE(line_info); type++) |
2e8488b4 | 576 | /* Case insensitive search matches Signed-off-by lines better. */ |
a28bcc22 JF |
577 | if (linelen >= line_info[type].linelen && |
578 | !strncasecmp(line_info[type].line, line, line_info[type].linelen)) | |
579 | return type; | |
78c70acd | 580 | |
2e8488b4 | 581 | return LINE_DEFAULT; |
78c70acd JF |
582 | } |
583 | ||
2e8488b4 | 584 | static inline int |
78c70acd JF |
585 | get_line_attr(enum line_type type) |
586 | { | |
2e8488b4 JF |
587 | assert(type < ARRAY_SIZE(line_info)); |
588 | return COLOR_PAIR(type) | line_info[type].attr; | |
78c70acd JF |
589 | } |
590 | ||
660e09ad JF |
591 | static struct line_info * |
592 | get_line_info(char *name, int namelen) | |
593 | { | |
594 | enum line_type type; | |
660e09ad JF |
595 | |
596 | for (type = 0; type < ARRAY_SIZE(line_info); type++) | |
597 | if (namelen == line_info[type].namelen && | |
201f5a18 | 598 | !string_enum_compare(line_info[type].name, name, namelen)) |
660e09ad JF |
599 | return &line_info[type]; |
600 | ||
601 | return NULL; | |
602 | } | |
603 | ||
78c70acd JF |
604 | static void |
605 | init_colors(void) | |
606 | { | |
82e78006 JF |
607 | int default_bg = COLOR_BLACK; |
608 | int default_fg = COLOR_WHITE; | |
a28bcc22 | 609 | enum line_type type; |
78c70acd JF |
610 | |
611 | start_color(); | |
612 | ||
613 | if (use_default_colors() != ERR) { | |
82e78006 JF |
614 | default_bg = -1; |
615 | default_fg = -1; | |
78c70acd JF |
616 | } |
617 | ||
a28bcc22 JF |
618 | for (type = 0; type < ARRAY_SIZE(line_info); type++) { |
619 | struct line_info *info = &line_info[type]; | |
82e78006 JF |
620 | int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg; |
621 | int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg; | |
78c70acd | 622 | |
a28bcc22 | 623 | init_pair(type, fg, bg); |
78c70acd JF |
624 | } |
625 | } | |
626 | ||
fe7233c3 JF |
627 | struct line { |
628 | enum line_type type; | |
629 | void *data; /* User data */ | |
630 | }; | |
631 | ||
78c70acd | 632 | |
1899507c | 633 | /* |
37157fa0 JF |
634 | * Keys |
635 | */ | |
636 | ||
93a97d86 | 637 | struct keybinding { |
37157fa0 | 638 | int alias; |
93a97d86 | 639 | enum request request; |
04e2b7b2 | 640 | struct keybinding *next; |
37157fa0 JF |
641 | }; |
642 | ||
93a97d86 | 643 | static struct keybinding default_keybindings[] = { |
37157fa0 JF |
644 | /* View switching */ |
645 | { 'm', REQ_VIEW_MAIN }, | |
646 | { 'd', REQ_VIEW_DIFF }, | |
647 | { 'l', REQ_VIEW_LOG }, | |
648 | { 'p', REQ_VIEW_PAGER }, | |
649 | { 'h', REQ_VIEW_HELP }, | |
650 | { '?', REQ_VIEW_HELP }, | |
651 | ||
652 | /* View manipulation */ | |
653 | { 'q', REQ_VIEW_CLOSE }, | |
654 | { KEY_TAB, REQ_VIEW_NEXT }, | |
655 | { KEY_RETURN, REQ_ENTER }, | |
656 | { KEY_UP, REQ_PREVIOUS }, | |
657 | { KEY_DOWN, REQ_NEXT }, | |
658 | ||
659 | /* Cursor navigation */ | |
660 | { 'k', REQ_MOVE_UP }, | |
661 | { 'j', REQ_MOVE_DOWN }, | |
662 | { KEY_HOME, REQ_MOVE_FIRST_LINE }, | |
663 | { KEY_END, REQ_MOVE_LAST_LINE }, | |
664 | { KEY_NPAGE, REQ_MOVE_PAGE_DOWN }, | |
665 | { ' ', REQ_MOVE_PAGE_DOWN }, | |
666 | { KEY_PPAGE, REQ_MOVE_PAGE_UP }, | |
667 | { 'b', REQ_MOVE_PAGE_UP }, | |
668 | { '-', REQ_MOVE_PAGE_UP }, | |
669 | ||
670 | /* Scrolling */ | |
671 | { KEY_IC, REQ_SCROLL_LINE_UP }, | |
672 | { KEY_DC, REQ_SCROLL_LINE_DOWN }, | |
673 | { 'w', REQ_SCROLL_PAGE_UP }, | |
674 | { 's', REQ_SCROLL_PAGE_DOWN }, | |
675 | ||
676 | /* Misc */ | |
677 | { 'Q', REQ_QUIT }, | |
678 | { 'z', REQ_STOP_LOADING }, | |
679 | { 'v', REQ_SHOW_VERSION }, | |
680 | { 'r', REQ_SCREEN_REDRAW }, | |
681 | { 'n', REQ_TOGGLE_LINENO }, | |
682 | { 'g', REQ_TOGGLE_REV_GRAPH}, | |
683 | { ':', REQ_PROMPT }, | |
684 | ||
685 | /* wgetch() with nodelay() enabled returns ERR when there's no input. */ | |
686 | { ERR, REQ_SCREEN_UPDATE }, | |
687 | ||
688 | /* Use the ncurses SIGWINCH handler. */ | |
689 | { KEY_RESIZE, REQ_SCREEN_RESIZE }, | |
690 | }; | |
691 | ||
04e2b7b2 JF |
692 | #define KEYMAP_INFO \ |
693 | KEYMAP_(GENERIC), \ | |
694 | KEYMAP_(MAIN), \ | |
695 | KEYMAP_(DIFF), \ | |
696 | KEYMAP_(LOG), \ | |
697 | KEYMAP_(PAGER), \ | |
698 | KEYMAP_(HELP) \ | |
699 | ||
700 | enum keymap { | |
701 | #define KEYMAP_(name) KEYMAP_##name | |
702 | KEYMAP_INFO | |
703 | #undef KEYMAP_ | |
704 | }; | |
705 | ||
706 | static struct int_map keymap_table[] = { | |
707 | #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name } | |
708 | KEYMAP_INFO | |
709 | #undef KEYMAP_ | |
710 | }; | |
711 | ||
712 | #define set_keymap(map, name) \ | |
713 | set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name)) | |
714 | ||
715 | static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)]; | |
716 | ||
717 | static void | |
718 | add_keybinding(enum keymap keymap, enum request request, int key) | |
719 | { | |
720 | struct keybinding *keybinding; | |
721 | ||
722 | keybinding = calloc(1, sizeof(*keybinding)); | |
723 | if (!keybinding) | |
724 | die("Failed to allocate keybinding"); | |
725 | ||
726 | keybinding->alias = key; | |
727 | keybinding->request = request; | |
728 | keybinding->next = keybindings[keymap]; | |
729 | keybindings[keymap] = keybinding; | |
730 | } | |
731 | ||
732 | /* Looks for a key binding first in the given map, then in the generic map, and | |
733 | * lastly in the default keybindings. */ | |
37157fa0 | 734 | static enum request |
04e2b7b2 | 735 | get_keybinding(enum keymap keymap, int key) |
37157fa0 | 736 | { |
04e2b7b2 | 737 | struct keybinding *kbd; |
37157fa0 JF |
738 | int i; |
739 | ||
04e2b7b2 JF |
740 | for (kbd = keybindings[keymap]; kbd; kbd = kbd->next) |
741 | if (kbd->alias == key) | |
742 | return kbd->request; | |
743 | ||
744 | for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next) | |
745 | if (kbd->alias == key) | |
746 | return kbd->request; | |
747 | ||
93a97d86 JF |
748 | for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) |
749 | if (default_keybindings[i].alias == key) | |
750 | return default_keybindings[i].request; | |
37157fa0 JF |
751 | |
752 | return (enum request) key; | |
753 | } | |
754 | ||
93a97d86 | 755 | |
37157fa0 JF |
756 | struct key { |
757 | char *name; | |
758 | int value; | |
759 | }; | |
760 | ||
761 | static struct key key_table[] = { | |
762 | { "Enter", KEY_RETURN }, | |
763 | { "Space", ' ' }, | |
764 | { "Backspace", KEY_BACKSPACE }, | |
765 | { "Tab", KEY_TAB }, | |
766 | { "Escape", KEY_ESC }, | |
767 | { "Left", KEY_LEFT }, | |
768 | { "Right", KEY_RIGHT }, | |
769 | { "Up", KEY_UP }, | |
770 | { "Down", KEY_DOWN }, | |
771 | { "Insert", KEY_IC }, | |
772 | { "Delete", KEY_DC }, | |
74f83ee6 | 773 | { "Hash", '#' }, |
37157fa0 JF |
774 | { "Home", KEY_HOME }, |
775 | { "End", KEY_END }, | |
776 | { "PageUp", KEY_PPAGE }, | |
777 | { "PageDown", KEY_NPAGE }, | |
778 | { "F1", KEY_F(1) }, | |
779 | { "F2", KEY_F(2) }, | |
780 | { "F3", KEY_F(3) }, | |
781 | { "F4", KEY_F(4) }, | |
782 | { "F5", KEY_F(5) }, | |
783 | { "F6", KEY_F(6) }, | |
784 | { "F7", KEY_F(7) }, | |
785 | { "F8", KEY_F(8) }, | |
786 | { "F9", KEY_F(9) }, | |
787 | { "F10", KEY_F(10) }, | |
788 | { "F11", KEY_F(11) }, | |
789 | { "F12", KEY_F(12) }, | |
790 | }; | |
791 | ||
04e2b7b2 JF |
792 | static int |
793 | get_key_value(const char *name) | |
794 | { | |
795 | int i; | |
796 | ||
797 | for (i = 0; i < ARRAY_SIZE(key_table); i++) | |
798 | if (!strcasecmp(key_table[i].name, name)) | |
799 | return key_table[i].value; | |
800 | ||
801 | if (strlen(name) == 1 && isprint(*name)) | |
802 | return (int) *name; | |
803 | ||
804 | return ERR; | |
805 | } | |
806 | ||
37157fa0 JF |
807 | static char * |
808 | get_key(enum request request) | |
809 | { | |
810 | static char buf[BUFSIZ]; | |
811 | static char key_char[] = "'X'"; | |
812 | int pos = 0; | |
813 | char *sep = " "; | |
814 | int i; | |
815 | ||
816 | buf[pos] = 0; | |
817 | ||
93a97d86 JF |
818 | for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) { |
819 | struct keybinding *keybinding = &default_keybindings[i]; | |
37157fa0 JF |
820 | char *seq = NULL; |
821 | int key; | |
822 | ||
93a97d86 | 823 | if (keybinding->request != request) |
37157fa0 JF |
824 | continue; |
825 | ||
826 | for (key = 0; key < ARRAY_SIZE(key_table); key++) | |
93a97d86 | 827 | if (key_table[key].value == keybinding->alias) |
37157fa0 JF |
828 | seq = key_table[key].name; |
829 | ||
830 | if (seq == NULL && | |
93a97d86 JF |
831 | keybinding->alias < 127 && |
832 | isprint(keybinding->alias)) { | |
833 | key_char[1] = (char) keybinding->alias; | |
37157fa0 JF |
834 | seq = key_char; |
835 | } | |
836 | ||
837 | if (!seq) | |
838 | seq = "'?'"; | |
839 | ||
840 | if (!string_format_from(buf, &pos, "%s%s", sep, seq)) | |
841 | return "Too many keybindings!"; | |
842 | sep = ", "; | |
843 | } | |
844 | ||
845 | return buf; | |
846 | } | |
847 | ||
848 | ||
849 | /* | |
1899507c JF |
850 | * User config file handling. |
851 | */ | |
852 | ||
5dc795f2 JF |
853 | static struct int_map color_map[] = { |
854 | #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name } | |
855 | COLOR_MAP(DEFAULT), | |
856 | COLOR_MAP(BLACK), | |
857 | COLOR_MAP(BLUE), | |
858 | COLOR_MAP(CYAN), | |
859 | COLOR_MAP(GREEN), | |
860 | COLOR_MAP(MAGENTA), | |
861 | COLOR_MAP(RED), | |
862 | COLOR_MAP(WHITE), | |
863 | COLOR_MAP(YELLOW), | |
864 | }; | |
865 | ||
9256ab05 JF |
866 | #define set_color(color, name) \ |
867 | set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name)) | |
660e09ad | 868 | |
5dc795f2 JF |
869 | static struct int_map attr_map[] = { |
870 | #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name } | |
871 | ATTR_MAP(NORMAL), | |
872 | ATTR_MAP(BLINK), | |
873 | ATTR_MAP(BOLD), | |
874 | ATTR_MAP(DIM), | |
875 | ATTR_MAP(REVERSE), | |
876 | ATTR_MAP(STANDOUT), | |
877 | ATTR_MAP(UNDERLINE), | |
878 | }; | |
879 | ||
9256ab05 JF |
880 | #define set_attribute(attr, name) \ |
881 | set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name)) | |
660e09ad | 882 | |
3c3801c2 JF |
883 | static int config_lineno; |
884 | static bool config_errors; | |
885 | static char *config_msg; | |
886 | ||
5bfd96c7 | 887 | /* Wants: object fgcolor bgcolor [attr] */ |
660e09ad | 888 | static int |
5bfd96c7 | 889 | option_color_command(int argc, char *argv[]) |
660e09ad | 890 | { |
bca8fcaa JF |
891 | struct line_info *info; |
892 | ||
9256ab05 JF |
893 | if (argc != 3 && argc != 4) { |
894 | config_msg = "Wrong number of arguments given to color command"; | |
895 | return ERR; | |
896 | } | |
897 | ||
898 | info = get_line_info(argv[0], strlen(argv[0])); | |
bca8fcaa JF |
899 | if (!info) { |
900 | config_msg = "Unknown color name"; | |
901 | return ERR; | |
902 | } | |
660e09ad | 903 | |
a3653368 JF |
904 | if (set_color(&info->fg, argv[1]) == ERR || |
905 | set_color(&info->bg, argv[2]) == ERR) { | |
bca8fcaa JF |
906 | config_msg = "Unknown color"; |
907 | return ERR; | |
908 | } | |
660e09ad | 909 | |
9256ab05 | 910 | if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) { |
bca8fcaa JF |
911 | config_msg = "Unknown attribute"; |
912 | return ERR; | |
660e09ad JF |
913 | } |
914 | ||
bca8fcaa JF |
915 | return OK; |
916 | } | |
917 | ||
5bfd96c7 JF |
918 | /* Wants: name = value */ |
919 | static int | |
920 | option_set_command(int argc, char *argv[]) | |
921 | { | |
922 | if (argc != 3) { | |
923 | config_msg = "Wrong number of arguments given to set command"; | |
924 | return ERR; | |
925 | } | |
926 | ||
927 | if (strcmp(argv[1], "=")) { | |
928 | config_msg = "No value assigned"; | |
929 | return ERR; | |
930 | } | |
931 | ||
932 | if (!strcmp(argv[0], "show-rev-graph")) { | |
933 | opt_rev_graph = (!strcmp(argv[2], "1") || | |
934 | !strcmp(argv[2], "true") || | |
935 | !strcmp(argv[2], "yes")); | |
936 | return OK; | |
937 | } | |
938 | ||
939 | if (!strcmp(argv[0], "line-number-interval")) { | |
940 | opt_num_interval = atoi(argv[2]); | |
941 | return OK; | |
942 | } | |
943 | ||
944 | if (!strcmp(argv[0], "tab-size")) { | |
945 | opt_tab_size = atoi(argv[2]); | |
946 | return OK; | |
947 | } | |
948 | ||
cb7267ee | 949 | if (!strcmp(argv[0], "commit-encoding")) { |
3cc9a4d4 JF |
950 | char *arg = argv[2]; |
951 | int delimiter = *arg; | |
952 | int i; | |
953 | ||
954 | switch (delimiter) { | |
955 | case '"': | |
956 | case '\'': | |
957 | for (arg++, i = 0; arg[i]; i++) | |
958 | if (arg[i] == delimiter) { | |
959 | arg[i] = 0; | |
960 | break; | |
961 | } | |
962 | default: | |
963 | string_copy(opt_encoding, arg); | |
964 | return OK; | |
965 | } | |
5bfd96c7 JF |
966 | } |
967 | ||
a3653368 | 968 | config_msg = "Unknown variable name"; |
5bfd96c7 JF |
969 | return ERR; |
970 | } | |
971 | ||
04e2b7b2 JF |
972 | /* Wants: mode request key */ |
973 | static int | |
974 | option_bind_command(int argc, char *argv[]) | |
975 | { | |
976 | enum request request; | |
977 | int keymap; | |
978 | int key; | |
979 | ||
980 | if (argc != 3) { | |
981 | config_msg = "Wrong number of arguments given to bind command"; | |
982 | return ERR; | |
983 | } | |
984 | ||
985 | if (set_keymap(&keymap, argv[0]) == ERR) { | |
986 | config_msg = "Unknown key map"; | |
987 | return ERR; | |
988 | } | |
989 | ||
990 | key = get_key_value(argv[1]); | |
991 | if (key == ERR) { | |
992 | config_msg = "Unknown key"; | |
993 | return ERR; | |
994 | } | |
995 | ||
996 | request = get_request(argv[2]); | |
997 | if (request == REQ_UNKNOWN) { | |
998 | config_msg = "Unknown request name"; | |
999 | return ERR; | |
1000 | } | |
1001 | ||
1002 | add_keybinding(keymap, request, key); | |
1003 | ||
1004 | return OK; | |
1005 | } | |
1006 | ||
bca8fcaa | 1007 | static int |
9256ab05 | 1008 | set_option(char *opt, char *value) |
bca8fcaa | 1009 | { |
9256ab05 JF |
1010 | char *argv[16]; |
1011 | int valuelen; | |
1012 | int argc = 0; | |
1013 | ||
1014 | /* Tokenize */ | |
1015 | while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) { | |
1016 | argv[argc++] = value; | |
1017 | ||
1018 | value += valuelen; | |
1019 | if (!*value) | |
1020 | break; | |
1021 | ||
1022 | *value++ = 0; | |
1023 | while (isspace(*value)) | |
1024 | value++; | |
1025 | } | |
1026 | ||
1027 | if (!strcmp(opt, "color")) | |
5bfd96c7 JF |
1028 | return option_color_command(argc, argv); |
1029 | ||
1030 | if (!strcmp(opt, "set")) | |
1031 | return option_set_command(argc, argv); | |
bca8fcaa | 1032 | |
04e2b7b2 JF |
1033 | if (!strcmp(opt, "bind")) |
1034 | return option_bind_command(argc, argv); | |
1035 | ||
a3653368 | 1036 | config_msg = "Unknown option command"; |
660e09ad JF |
1037 | return ERR; |
1038 | } | |
1039 | ||
1040 | static int | |
3c3801c2 JF |
1041 | read_option(char *opt, int optlen, char *value, int valuelen) |
1042 | { | |
a3653368 JF |
1043 | int status = OK; |
1044 | ||
3c3801c2 JF |
1045 | config_lineno++; |
1046 | config_msg = "Internal error"; | |
1047 | ||
a3653368 JF |
1048 | /* Check for comment markers, since read_properties() will |
1049 | * only ensure opt and value are split at first " \t". */ | |
74f83ee6 | 1050 | optlen = strcspn(opt, "#"); |
a3653368 | 1051 | if (optlen == 0) |
3c3801c2 JF |
1052 | return OK; |
1053 | ||
a3653368 JF |
1054 | if (opt[optlen] != 0) { |
1055 | config_msg = "No option value"; | |
1056 | status = ERR; | |
1057 | ||
1058 | } else { | |
1059 | /* Look for comment endings in the value. */ | |
74f83ee6 | 1060 | int len = strcspn(value, "#"); |
a3653368 JF |
1061 | |
1062 | if (len < valuelen) { | |
1063 | valuelen = len; | |
1064 | value[valuelen] = 0; | |
1065 | } | |
1066 | ||
1067 | status = set_option(opt, value); | |
3c3801c2 JF |
1068 | } |
1069 | ||
a3653368 JF |
1070 | if (status == ERR) { |
1071 | fprintf(stderr, "Error on line %d, near '%.*s': %s\n", | |
3c3801c2 JF |
1072 | config_lineno, optlen, opt, config_msg); |
1073 | config_errors = TRUE; | |
1074 | } | |
1075 | ||
1076 | /* Always keep going if errors are encountered. */ | |
1077 | return OK; | |
1078 | } | |
1079 | ||
1080 | static int | |
660e09ad JF |
1081 | load_options(void) |
1082 | { | |
1083 | char *home = getenv("HOME"); | |
1084 | char buf[1024]; | |
1085 | FILE *file; | |
1086 | ||
3c3801c2 JF |
1087 | config_lineno = 0; |
1088 | config_errors = FALSE; | |
1089 | ||
cc2d1364 | 1090 | if (!home || !string_format(buf, "%s/.tigrc", home)) |
660e09ad JF |
1091 | return ERR; |
1092 | ||
1093 | /* It's ok that the file doesn't exist. */ | |
1094 | file = fopen(buf, "r"); | |
1095 | if (!file) | |
1096 | return OK; | |
1097 | ||
3c3801c2 JF |
1098 | if (read_properties(file, " \t", read_option) == ERR || |
1099 | config_errors == TRUE) | |
1100 | fprintf(stderr, "Errors while loading %s.\n", buf); | |
1101 | ||
1102 | return OK; | |
660e09ad JF |
1103 | } |
1104 | ||
1105 | ||
d839253b | 1106 | /* |
468876c9 | 1107 | * The viewer |
d839253b | 1108 | */ |
c2124ccd JF |
1109 | |
1110 | struct view; | |
fe7233c3 | 1111 | struct view_ops; |
c2124ccd JF |
1112 | |
1113 | /* The display array of active views and the index of the current view. */ | |
1114 | static struct view *display[2]; | |
1115 | static unsigned int current_view; | |
1116 | ||
1117 | #define foreach_view(view, i) \ | |
1118 | for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++) | |
1119 | ||
9f41488f | 1120 | #define displayed_views() (display[1] != NULL ? 2 : 1) |
c2124ccd | 1121 | |
d839253b | 1122 | /* Current head and commit ID */ |
c2124ccd JF |
1123 | static char ref_commit[SIZEOF_REF] = "HEAD"; |
1124 | static char ref_head[SIZEOF_REF] = "HEAD"; | |
1125 | ||
b801d8b2 | 1126 | struct view { |
03a93dbb | 1127 | const char *name; /* View name */ |
4685845e TH |
1128 | const char *cmd_fmt; /* Default command line format */ |
1129 | const char *cmd_env; /* Command line set via environment */ | |
1130 | const char *id; /* Points to either of ref_{head,commit} */ | |
6b161b31 | 1131 | |
fe7233c3 | 1132 | struct view_ops *ops; /* View operations */ |
22f66b0a | 1133 | |
04e2b7b2 JF |
1134 | enum keymap keymap; /* What keymap does this view have */ |
1135 | ||
03a93dbb | 1136 | char cmd[SIZEOF_CMD]; /* Command buffer */ |
49f2b43f JF |
1137 | char ref[SIZEOF_REF]; /* Hovered commit reference */ |
1138 | char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */ | |
2e8488b4 | 1139 | |
8855ada4 JF |
1140 | int height, width; /* The width and height of the main window */ |
1141 | WINDOW *win; /* The main window */ | |
1142 | WINDOW *title; /* The title window living below the main window */ | |
b801d8b2 JF |
1143 | |
1144 | /* Navigation */ | |
1145 | unsigned long offset; /* Offset of the window top */ | |
1146 | unsigned long lineno; /* Current line number */ | |
1147 | ||
f6da0b66 JF |
1148 | /* If non-NULL, points to the view that opened this view. If this view |
1149 | * is closed tig will switch back to the parent view. */ | |
1150 | struct view *parent; | |
1151 | ||
b801d8b2 JF |
1152 | /* Buffering */ |
1153 | unsigned long lines; /* Total number of lines */ | |
fe7233c3 | 1154 | struct line *line; /* Line index */ |
e2c01617 | 1155 | unsigned long line_size;/* Total number of allocated lines */ |
8855ada4 | 1156 | unsigned int digits; /* Number of digits in the lines member. */ |
b801d8b2 JF |
1157 | |
1158 | /* Loading */ | |
1159 | FILE *pipe; | |
2e8488b4 | 1160 | time_t start_time; |
b801d8b2 JF |
1161 | }; |
1162 | ||
fe7233c3 JF |
1163 | struct view_ops { |
1164 | /* What type of content being displayed. Used in the title bar. */ | |
1165 | const char *type; | |
1166 | /* Draw one line; @lineno must be < view->height. */ | |
1167 | bool (*draw)(struct view *view, struct line *line, unsigned int lineno); | |
1168 | /* Read one line; updates view->line. */ | |
701e4f5d | 1169 | bool (*read)(struct view *view, char *data); |
fe7233c3 JF |
1170 | /* Depending on view, change display based on current line. */ |
1171 | bool (*enter)(struct view *view, struct line *line); | |
1172 | }; | |
1173 | ||
6b161b31 JF |
1174 | static struct view_ops pager_ops; |
1175 | static struct view_ops main_ops; | |
a28bcc22 | 1176 | |
04e2b7b2 JF |
1177 | #define VIEW_STR(name, cmd, env, ref, ops, map) \ |
1178 | { name, cmd, #env, ref, ops, map} | |
1ba2ae4b | 1179 | |
95d7ddcd | 1180 | #define VIEW_(id, name, ops, ref) \ |
04e2b7b2 | 1181 | VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id) |
1ba2ae4b | 1182 | |
c2124ccd | 1183 | |
b801d8b2 | 1184 | static struct view views[] = { |
95d7ddcd JF |
1185 | VIEW_(MAIN, "main", &main_ops, ref_head), |
1186 | VIEW_(DIFF, "diff", &pager_ops, ref_commit), | |
1187 | VIEW_(LOG, "log", &pager_ops, ref_head), | |
1188 | VIEW_(HELP, "help", &pager_ops, "static"), | |
1189 | VIEW_(PAGER, "pager", &pager_ops, "static"), | |
b801d8b2 JF |
1190 | }; |
1191 | ||
a28bcc22 JF |
1192 | #define VIEW(req) (&views[(req) - REQ_OFFSET - 1]) |
1193 | ||
4c6fabc2 | 1194 | |
fe7233c3 JF |
1195 | static bool |
1196 | draw_view_line(struct view *view, unsigned int lineno) | |
1197 | { | |
1198 | if (view->offset + lineno >= view->lines) | |
1199 | return FALSE; | |
1200 | ||
1201 | return view->ops->draw(view, &view->line[view->offset + lineno], lineno); | |
1202 | } | |
1203 | ||
b801d8b2 | 1204 | static void |
82e78006 | 1205 | redraw_view_from(struct view *view, int lineno) |
b801d8b2 | 1206 | { |
82e78006 | 1207 | assert(0 <= lineno && lineno < view->height); |
b801d8b2 | 1208 | |
82e78006 | 1209 | for (; lineno < view->height; lineno++) { |
fe7233c3 | 1210 | if (!draw_view_line(view, lineno)) |
fd85fef1 | 1211 | break; |
b801d8b2 JF |
1212 | } |
1213 | ||
1214 | redrawwin(view->win); | |
1215 | wrefresh(view->win); | |
1216 | } | |
1217 | ||
b76c2afc | 1218 | static void |
82e78006 JF |
1219 | redraw_view(struct view *view) |
1220 | { | |
1221 | wclear(view->win); | |
1222 | redraw_view_from(view, 0); | |
1223 | } | |
1224 | ||
c2124ccd | 1225 | |
6b161b31 | 1226 | static void |
81030ec8 JF |
1227 | update_view_title(struct view *view) |
1228 | { | |
1229 | if (view == display[current_view]) | |
1230 | wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS)); | |
1231 | else | |
1232 | wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR)); | |
1233 | ||
1234 | werase(view->title); | |
1235 | wmove(view->title, 0, 0); | |
1236 | ||
81030ec8 JF |
1237 | if (*view->ref) |
1238 | wprintw(view->title, "[%s] %s", view->name, view->ref); | |
1239 | else | |
1240 | wprintw(view->title, "[%s]", view->name); | |
1241 | ||
c19f8017 | 1242 | if (view->lines || view->pipe) { |
6d9c07af | 1243 | unsigned int view_lines = view->offset + view->height; |
c19f8017 | 1244 | unsigned int lines = view->lines |
6d9c07af | 1245 | ? MIN(view_lines, view->lines) * 100 / view->lines |
c19f8017 JF |
1246 | : 0; |
1247 | ||
81030ec8 JF |
1248 | wprintw(view->title, " - %s %d of %d (%d%%)", |
1249 | view->ops->type, | |
1250 | view->lineno + 1, | |
1251 | view->lines, | |
c19f8017 | 1252 | lines); |
81030ec8 JF |
1253 | } |
1254 | ||
f97f4012 JF |
1255 | if (view->pipe) { |
1256 | time_t secs = time(NULL) - view->start_time; | |
1257 | ||
1258 | /* Three git seconds are a long time ... */ | |
1259 | if (secs > 2) | |
1260 | wprintw(view->title, " %lds", secs); | |
1261 | } | |
1262 | ||
976447f8 | 1263 | wmove(view->title, 0, view->width - 1); |
81030ec8 JF |
1264 | wrefresh(view->title); |
1265 | } | |
1266 | ||
1267 | static void | |
6b161b31 | 1268 | resize_display(void) |
b76c2afc | 1269 | { |
03a93dbb | 1270 | int offset, i; |
6b161b31 JF |
1271 | struct view *base = display[0]; |
1272 | struct view *view = display[1] ? display[1] : display[0]; | |
b76c2afc | 1273 | |
6b161b31 | 1274 | /* Setup window dimensions */ |
b76c2afc | 1275 | |
03a93dbb | 1276 | getmaxyx(stdscr, base->height, base->width); |
b76c2afc | 1277 | |
6b161b31 | 1278 | /* Make room for the status window. */ |
03a93dbb | 1279 | base->height -= 1; |
6b161b31 JF |
1280 | |
1281 | if (view != base) { | |
03a93dbb JF |
1282 | /* Horizontal split. */ |
1283 | view->width = base->width; | |
6b161b31 JF |
1284 | view->height = SCALE_SPLIT_VIEW(base->height); |
1285 | base->height -= view->height; | |
1286 | ||
1287 | /* Make room for the title bar. */ | |
1288 | view->height -= 1; | |
1289 | } | |
1290 | ||
1291 | /* Make room for the title bar. */ | |
1292 | base->height -= 1; | |
1293 | ||
1294 | offset = 0; | |
1295 | ||
1296 | foreach_view (view, i) { | |
b76c2afc | 1297 | if (!view->win) { |
c19f8017 | 1298 | view->win = newwin(view->height, 0, offset, 0); |
6b161b31 JF |
1299 | if (!view->win) |
1300 | die("Failed to create %s view", view->name); | |
1301 | ||
1302 | scrollok(view->win, TRUE); | |
1303 | ||
1304 | view->title = newwin(1, 0, offset + view->height, 0); | |
1305 | if (!view->title) | |
1306 | die("Failed to create title window"); | |
1307 | ||
1308 | } else { | |
c19f8017 | 1309 | wresize(view->win, view->height, view->width); |
6b161b31 JF |
1310 | mvwin(view->win, offset, 0); |
1311 | mvwin(view->title, offset + view->height, 0); | |
a28bcc22 | 1312 | } |
a28bcc22 | 1313 | |
6b161b31 | 1314 | offset += view->height + 1; |
b76c2afc | 1315 | } |
6b161b31 | 1316 | } |
b76c2afc | 1317 | |
6b161b31 | 1318 | static void |
20bb5e18 JF |
1319 | redraw_display(void) |
1320 | { | |
1321 | struct view *view; | |
1322 | int i; | |
1323 | ||
1324 | foreach_view (view, i) { | |
1325 | redraw_view(view); | |
1326 | update_view_title(view); | |
1327 | } | |
1328 | } | |
1329 | ||
85af6284 JF |
1330 | static void |
1331 | update_display_cursor(void) | |
1332 | { | |
1333 | struct view *view = display[current_view]; | |
1334 | ||
1335 | /* Move the cursor to the right-most column of the cursor line. | |
1336 | * | |
1337 | * XXX: This could turn out to be a bit expensive, but it ensures that | |
1338 | * the cursor does not jump around. */ | |
1339 | if (view->lines) { | |
1340 | wmove(view->win, view->lineno - view->offset, view->width - 1); | |
1341 | wrefresh(view->win); | |
1342 | } | |
1343 | } | |
20bb5e18 | 1344 | |
2e8488b4 JF |
1345 | /* |
1346 | * Navigation | |
1347 | */ | |
1348 | ||
4a2909a7 | 1349 | /* Scrolling backend */ |
b801d8b2 | 1350 | static void |
b3a54cba | 1351 | do_scroll_view(struct view *view, int lines, bool redraw) |
b801d8b2 | 1352 | { |
fd85fef1 JF |
1353 | /* The rendering expects the new offset. */ |
1354 | view->offset += lines; | |
1355 | ||
1356 | assert(0 <= view->offset && view->offset < view->lines); | |
1357 | assert(lines); | |
b801d8b2 | 1358 | |
82e78006 | 1359 | /* Redraw the whole screen if scrolling is pointless. */ |
4c6fabc2 | 1360 | if (view->height < ABS(lines)) { |
b76c2afc JF |
1361 | redraw_view(view); |
1362 | ||
1363 | } else { | |
22f66b0a | 1364 | int line = lines > 0 ? view->height - lines : 0; |
82e78006 | 1365 | int end = line + ABS(lines); |
fd85fef1 JF |
1366 | |
1367 | wscrl(view->win, lines); | |
1368 | ||
22f66b0a | 1369 | for (; line < end; line++) { |
fe7233c3 | 1370 | if (!draw_view_line(view, line)) |
fd85fef1 JF |
1371 | break; |
1372 | } | |
1373 | } | |
1374 | ||
1375 | /* Move current line into the view. */ | |
1376 | if (view->lineno < view->offset) { | |
1377 | view->lineno = view->offset; | |
fe7233c3 | 1378 | draw_view_line(view, 0); |
fd85fef1 JF |
1379 | |
1380 | } else if (view->lineno >= view->offset + view->height) { | |
6706b2ba JF |
1381 | if (view->lineno == view->offset + view->height) { |
1382 | /* Clear the hidden line so it doesn't show if the view | |
1383 | * is scrolled up. */ | |
1384 | wmove(view->win, view->height, 0); | |
1385 | wclrtoeol(view->win); | |
1386 | } | |
fd85fef1 | 1387 | view->lineno = view->offset + view->height - 1; |
fe7233c3 | 1388 | draw_view_line(view, view->lineno - view->offset); |
fd85fef1 JF |
1389 | } |
1390 | ||
4c6fabc2 | 1391 | assert(view->offset <= view->lineno && view->lineno < view->lines); |
fd85fef1 | 1392 | |
b3a54cba JF |
1393 | if (!redraw) |
1394 | return; | |
1395 | ||
fd85fef1 JF |
1396 | redrawwin(view->win); |
1397 | wrefresh(view->win); | |
9d3f5834 | 1398 | report(""); |
fd85fef1 | 1399 | } |
78c70acd | 1400 | |
4a2909a7 | 1401 | /* Scroll frontend */ |
fd85fef1 | 1402 | static void |
6b161b31 | 1403 | scroll_view(struct view *view, enum request request) |
fd85fef1 JF |
1404 | { |
1405 | int lines = 1; | |
b801d8b2 JF |
1406 | |
1407 | switch (request) { | |
4a2909a7 | 1408 | case REQ_SCROLL_PAGE_DOWN: |
fd85fef1 | 1409 | lines = view->height; |
4a2909a7 | 1410 | case REQ_SCROLL_LINE_DOWN: |
b801d8b2 | 1411 | if (view->offset + lines > view->lines) |
bde3653a | 1412 | lines = view->lines - view->offset; |
b801d8b2 | 1413 | |
fd85fef1 | 1414 | if (lines == 0 || view->offset + view->height >= view->lines) { |
eb98559e | 1415 | report("Cannot scroll beyond the last line"); |
b801d8b2 JF |
1416 | return; |
1417 | } | |
1418 | break; | |
1419 | ||
4a2909a7 | 1420 | case REQ_SCROLL_PAGE_UP: |
fd85fef1 | 1421 | lines = view->height; |
4a2909a7 | 1422 | case REQ_SCROLL_LINE_UP: |
b801d8b2 JF |
1423 | if (lines > view->offset) |
1424 | lines = view->offset; | |
1425 | ||
1426 | if (lines == 0) { | |
eb98559e | 1427 | report("Cannot scroll beyond the first line"); |
b801d8b2 JF |
1428 | return; |
1429 | } | |
1430 | ||
fd85fef1 | 1431 | lines = -lines; |
b801d8b2 | 1432 | break; |
03a93dbb | 1433 | |
6b161b31 JF |
1434 | default: |
1435 | die("request %d not handled in switch", request); | |
b801d8b2 JF |
1436 | } |
1437 | ||
b3a54cba | 1438 | do_scroll_view(view, lines, TRUE); |
fd85fef1 | 1439 | } |
b801d8b2 | 1440 | |
4a2909a7 | 1441 | /* Cursor moving */ |
fd85fef1 | 1442 | static void |
b3a54cba | 1443 | move_view(struct view *view, enum request request, bool redraw) |
fd85fef1 JF |
1444 | { |
1445 | int steps; | |
b801d8b2 | 1446 | |
fd85fef1 | 1447 | switch (request) { |
4a2909a7 | 1448 | case REQ_MOVE_FIRST_LINE: |
78c70acd JF |
1449 | steps = -view->lineno; |
1450 | break; | |
1451 | ||
4a2909a7 | 1452 | case REQ_MOVE_LAST_LINE: |
78c70acd JF |
1453 | steps = view->lines - view->lineno - 1; |
1454 | break; | |
1455 | ||
4a2909a7 | 1456 | case REQ_MOVE_PAGE_UP: |
78c70acd JF |
1457 | steps = view->height > view->lineno |
1458 | ? -view->lineno : -view->height; | |
1459 | break; | |
1460 | ||
4a2909a7 | 1461 | case REQ_MOVE_PAGE_DOWN: |
78c70acd JF |
1462 | steps = view->lineno + view->height >= view->lines |
1463 | ? view->lines - view->lineno - 1 : view->height; | |
1464 | break; | |
1465 | ||
4a2909a7 | 1466 | case REQ_MOVE_UP: |
fd85fef1 JF |
1467 | steps = -1; |
1468 | break; | |
b801d8b2 | 1469 | |
4a2909a7 | 1470 | case REQ_MOVE_DOWN: |
fd85fef1 JF |
1471 | steps = 1; |
1472 | break; | |
6b161b31 JF |
1473 | |
1474 | default: | |
1475 | die("request %d not handled in switch", request); | |
78c70acd | 1476 | } |
b801d8b2 | 1477 | |
4c6fabc2 | 1478 | if (steps <= 0 && view->lineno == 0) { |
eb98559e | 1479 | report("Cannot move beyond the first line"); |
78c70acd | 1480 | return; |
b801d8b2 | 1481 | |
6908bdbd | 1482 | } else if (steps >= 0 && view->lineno + 1 >= view->lines) { |
eb98559e | 1483 | report("Cannot move beyond the last line"); |
78c70acd | 1484 | return; |
fd85fef1 JF |
1485 | } |
1486 | ||
4c6fabc2 | 1487 | /* Move the current line */ |
fd85fef1 | 1488 | view->lineno += steps; |
4c6fabc2 JF |
1489 | assert(0 <= view->lineno && view->lineno < view->lines); |
1490 | ||
1491 | /* Repaint the old "current" line if we be scrolling */ | |
2e8488b4 JF |
1492 | if (ABS(steps) < view->height) { |
1493 | int prev_lineno = view->lineno - steps - view->offset; | |
1494 | ||
1495 | wmove(view->win, prev_lineno, 0); | |
1496 | wclrtoeol(view->win); | |
fe7233c3 | 1497 | draw_view_line(view, prev_lineno); |
2e8488b4 | 1498 | } |
fd85fef1 | 1499 | |
4c6fabc2 | 1500 | /* Check whether the view needs to be scrolled */ |
fd85fef1 JF |
1501 | if (view->lineno < view->offset || |
1502 | view->lineno >= view->offset + view->height) { | |
1503 | if (steps < 0 && -steps > view->offset) { | |
1504 | steps = -view->offset; | |
b76c2afc JF |
1505 | |
1506 | } else if (steps > 0) { | |
1507 | if (view->lineno == view->lines - 1 && | |
1508 | view->lines > view->height) { | |
1509 | steps = view->lines - view->offset - 1; | |
1510 | if (steps >= view->height) | |
1511 | steps -= view->height - 1; | |
1512 | } | |
b801d8b2 | 1513 | } |
78c70acd | 1514 | |
b3a54cba | 1515 | do_scroll_view(view, steps, redraw); |
fd85fef1 | 1516 | return; |
b801d8b2 JF |
1517 | } |
1518 | ||
4c6fabc2 | 1519 | /* Draw the current line */ |
fe7233c3 | 1520 | draw_view_line(view, view->lineno - view->offset); |
fd85fef1 | 1521 | |
b3a54cba JF |
1522 | if (!redraw) |
1523 | return; | |
1524 | ||
b801d8b2 JF |
1525 | redrawwin(view->win); |
1526 | wrefresh(view->win); | |
9d3f5834 | 1527 | report(""); |
b801d8b2 JF |
1528 | } |
1529 | ||
b801d8b2 | 1530 | |
2e8488b4 JF |
1531 | /* |
1532 | * Incremental updating | |
1533 | */ | |
b801d8b2 | 1534 | |
199d1288 JF |
1535 | static void |
1536 | end_update(struct view *view) | |
1537 | { | |
1538 | if (!view->pipe) | |
1539 | return; | |
1540 | set_nonblocking_input(FALSE); | |
1541 | if (view->pipe == stdin) | |
1542 | fclose(view->pipe); | |
1543 | else | |
1544 | pclose(view->pipe); | |
1545 | view->pipe = NULL; | |
1546 | } | |
1547 | ||
03a93dbb | 1548 | static bool |
b801d8b2 JF |
1549 | begin_update(struct view *view) |
1550 | { | |
4685845e | 1551 | const char *id = view->id; |
fd85fef1 | 1552 | |
199d1288 JF |
1553 | if (view->pipe) |
1554 | end_update(view); | |
1555 | ||
03a93dbb JF |
1556 | if (opt_cmd[0]) { |
1557 | string_copy(view->cmd, opt_cmd); | |
1558 | opt_cmd[0] = 0; | |
8855ada4 JF |
1559 | /* When running random commands, the view ref could have become |
1560 | * invalid so clear it. */ | |
1561 | view->ref[0] = 0; | |
03a93dbb | 1562 | } else { |
4685845e | 1563 | const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt; |
1ba2ae4b | 1564 | |
cc2d1364 | 1565 | if (!string_format(view->cmd, format, id, id, id, id, id)) |
03a93dbb JF |
1566 | return FALSE; |
1567 | } | |
b801d8b2 | 1568 | |
6908bdbd JF |
1569 | /* Special case for the pager view. */ |
1570 | if (opt_pipe) { | |
1571 | view->pipe = opt_pipe; | |
1572 | opt_pipe = NULL; | |
1573 | } else { | |
1574 | view->pipe = popen(view->cmd, "r"); | |
1575 | } | |
1576 | ||
2e8488b4 JF |
1577 | if (!view->pipe) |
1578 | return FALSE; | |
b801d8b2 | 1579 | |
6b161b31 | 1580 | set_nonblocking_input(TRUE); |
b801d8b2 JF |
1581 | |
1582 | view->offset = 0; | |
1583 | view->lines = 0; | |
1584 | view->lineno = 0; | |
49f2b43f | 1585 | string_copy(view->vid, id); |
b801d8b2 | 1586 | |
2e8488b4 JF |
1587 | if (view->line) { |
1588 | int i; | |
1589 | ||
1590 | for (i = 0; i < view->lines; i++) | |
fe7233c3 JF |
1591 | if (view->line[i].data) |
1592 | free(view->line[i].data); | |
2e8488b4 JF |
1593 | |
1594 | free(view->line); | |
1595 | view->line = NULL; | |
1596 | } | |
1597 | ||
1598 | view->start_time = time(NULL); | |
1599 | ||
b801d8b2 JF |
1600 | return TRUE; |
1601 | } | |
1602 | ||
e2c01617 JF |
1603 | static struct line * |
1604 | realloc_lines(struct view *view, size_t line_size) | |
1605 | { | |
1606 | struct line *tmp = realloc(view->line, sizeof(*view->line) * line_size); | |
1607 | ||
1608 | if (!tmp) | |
1609 | return NULL; | |
1610 | ||
1611 | view->line = tmp; | |
1612 | view->line_size = line_size; | |
1613 | return view->line; | |
1614 | } | |
1615 | ||
03a93dbb | 1616 | static bool |
b801d8b2 JF |
1617 | update_view(struct view *view) |
1618 | { | |
1619 | char buffer[BUFSIZ]; | |
1620 | char *line; | |
82e78006 JF |
1621 | /* The number of lines to read. If too low it will cause too much |
1622 | * redrawing (and possible flickering), if too high responsiveness | |
1623 | * will suffer. */ | |
8855ada4 | 1624 | unsigned long lines = view->height; |
82e78006 | 1625 | int redraw_from = -1; |
b801d8b2 JF |
1626 | |
1627 | if (!view->pipe) | |
1628 | return TRUE; | |
1629 | ||
82e78006 JF |
1630 | /* Only redraw if lines are visible. */ |
1631 | if (view->offset + view->height >= view->lines) | |
1632 | redraw_from = view->lines - view->offset; | |
b801d8b2 | 1633 | |
e2c01617 | 1634 | if (!realloc_lines(view, view->lines + lines)) |
b801d8b2 JF |
1635 | goto alloc_error; |
1636 | ||
b801d8b2 | 1637 | while ((line = fgets(buffer, sizeof(buffer), view->pipe))) { |
c34d9c9f | 1638 | int linelen = strlen(line); |
b801d8b2 | 1639 | |
b801d8b2 JF |
1640 | if (linelen) |
1641 | line[linelen - 1] = 0; | |
1642 | ||
701e4f5d | 1643 | if (!view->ops->read(view, line)) |
b801d8b2 | 1644 | goto alloc_error; |
fd85fef1 JF |
1645 | |
1646 | if (lines-- == 1) | |
1647 | break; | |
b801d8b2 JF |
1648 | } |
1649 | ||
8855ada4 JF |
1650 | { |
1651 | int digits; | |
1652 | ||
1653 | lines = view->lines; | |
1654 | for (digits = 0; lines; digits++) | |
1655 | lines /= 10; | |
1656 | ||
1657 | /* Keep the displayed view in sync with line number scaling. */ | |
1658 | if (digits != view->digits) { | |
1659 | view->digits = digits; | |
1660 | redraw_from = 0; | |
1661 | } | |
1662 | } | |
1663 | ||
82e78006 JF |
1664 | if (redraw_from >= 0) { |
1665 | /* If this is an incremental update, redraw the previous line | |
a28bcc22 JF |
1666 | * since for commits some members could have changed when |
1667 | * loading the main view. */ | |
82e78006 JF |
1668 | if (redraw_from > 0) |
1669 | redraw_from--; | |
1670 | ||
1671 | /* Incrementally draw avoids flickering. */ | |
1672 | redraw_view_from(view, redraw_from); | |
4c6fabc2 | 1673 | } |
b801d8b2 | 1674 | |
eb98559e JF |
1675 | /* Update the title _after_ the redraw so that if the redraw picks up a |
1676 | * commit reference in view->ref it'll be available here. */ | |
1677 | update_view_title(view); | |
1678 | ||
b801d8b2 | 1679 | if (ferror(view->pipe)) { |
03a93dbb | 1680 | report("Failed to read: %s", strerror(errno)); |
b801d8b2 JF |
1681 | goto end; |
1682 | ||
1683 | } else if (feof(view->pipe)) { | |
f97f4012 | 1684 | report(""); |
b801d8b2 JF |
1685 | goto end; |
1686 | } | |
1687 | ||
1688 | return TRUE; | |
1689 | ||
1690 | alloc_error: | |
2e8488b4 | 1691 | report("Allocation failure"); |
b801d8b2 JF |
1692 | |
1693 | end: | |
1694 | end_update(view); | |
1695 | return FALSE; | |
1696 | } | |
1697 | ||
79d445ca | 1698 | |
e10154d5 JF |
1699 | /* |
1700 | * View opening | |
1701 | */ | |
1702 | ||
79d445ca JF |
1703 | static void open_help_view(struct view *view) |
1704 | { | |
1705 | char buf[BUFSIZ]; | |
1706 | int lines = ARRAY_SIZE(req_info) + 2; | |
1707 | int i; | |
1708 | ||
1709 | if (view->lines > 0) | |
1710 | return; | |
1711 | ||
1712 | for (i = 0; i < ARRAY_SIZE(req_info); i++) | |
1713 | if (!req_info[i].request) | |
1714 | lines++; | |
1715 | ||
1716 | view->line = calloc(lines, sizeof(*view->line)); | |
1717 | if (!view->line) { | |
1718 | report("Allocation failure"); | |
1719 | return; | |
1720 | } | |
1721 | ||
1722 | view->ops->read(view, "Quick reference for tig keybindings:"); | |
1723 | ||
1724 | for (i = 0; i < ARRAY_SIZE(req_info); i++) { | |
1725 | char *key; | |
1726 | ||
1727 | if (!req_info[i].request) { | |
1728 | view->ops->read(view, ""); | |
1729 | view->ops->read(view, req_info[i].help); | |
1730 | continue; | |
1731 | } | |
1732 | ||
1733 | key = get_key(req_info[i].request); | |
1734 | if (!string_format(buf, "%-25s %s", key, req_info[i].help)) | |
1735 | continue; | |
1736 | ||
1737 | view->ops->read(view, buf); | |
1738 | } | |
1739 | } | |
1740 | ||
49f2b43f JF |
1741 | enum open_flags { |
1742 | OPEN_DEFAULT = 0, /* Use default view switching. */ | |
1743 | OPEN_SPLIT = 1, /* Split current view. */ | |
1744 | OPEN_BACKGROUNDED = 2, /* Backgrounded. */ | |
1745 | OPEN_RELOAD = 4, /* Reload view even if it is the current. */ | |
1746 | }; | |
1747 | ||
6b161b31 | 1748 | static void |
49f2b43f | 1749 | open_view(struct view *prev, enum request request, enum open_flags flags) |
b801d8b2 | 1750 | { |
49f2b43f JF |
1751 | bool backgrounded = !!(flags & OPEN_BACKGROUNDED); |
1752 | bool split = !!(flags & OPEN_SPLIT); | |
1753 | bool reload = !!(flags & OPEN_RELOAD); | |
a28bcc22 | 1754 | struct view *view = VIEW(request); |
9f41488f | 1755 | int nviews = displayed_views(); |
6e950a52 | 1756 | struct view *base_view = display[0]; |
b801d8b2 | 1757 | |
49f2b43f | 1758 | if (view == prev && nviews == 1 && !reload) { |
6b161b31 JF |
1759 | report("Already in %s view", view->name); |
1760 | return; | |
1761 | } | |
b801d8b2 | 1762 | |
2509b112 | 1763 | if (view == VIEW(REQ_VIEW_HELP)) { |
79d445ca | 1764 | open_help_view(view); |
2509b112 JF |
1765 | |
1766 | } else if ((reload || strcmp(view->vid, view->id)) && | |
1767 | !begin_update(view)) { | |
6b161b31 JF |
1768 | report("Failed to load %s view", view->name); |
1769 | return; | |
1770 | } | |
a28bcc22 | 1771 | |
6b161b31 | 1772 | if (split) { |
8d741c06 | 1773 | display[1] = view; |
6b161b31 | 1774 | if (!backgrounded) |
8d741c06 | 1775 | current_view = 1; |
6b161b31 JF |
1776 | } else { |
1777 | /* Maximize the current view. */ | |
1778 | memset(display, 0, sizeof(display)); | |
1779 | current_view = 0; | |
1780 | display[current_view] = view; | |
a28bcc22 | 1781 | } |
b801d8b2 | 1782 | |
6e950a52 JF |
1783 | /* Resize the view when switching between split- and full-screen, |
1784 | * or when switching between two different full-screen views. */ | |
1785 | if (nviews != displayed_views() || | |
1786 | (nviews == 1 && base_view != display[0])) | |
a006db63 | 1787 | resize_display(); |
b801d8b2 | 1788 | |
a8891802 | 1789 | if (split && prev->lineno - prev->offset >= prev->height) { |
03a93dbb | 1790 | /* Take the title line into account. */ |
eb98559e | 1791 | int lines = prev->lineno - prev->offset - prev->height + 1; |
03a93dbb JF |
1792 | |
1793 | /* Scroll the view that was split if the current line is | |
1794 | * outside the new limited view. */ | |
b3a54cba | 1795 | do_scroll_view(prev, lines, TRUE); |
03a93dbb JF |
1796 | } |
1797 | ||
6b161b31 | 1798 | if (prev && view != prev) { |
9b995f0c | 1799 | if (split && !backgrounded) { |
f0b3ab80 JF |
1800 | /* "Blur" the previous view. */ |
1801 | update_view_title(prev); | |
9f396969 | 1802 | } |
f0b3ab80 | 1803 | |
f6da0b66 | 1804 | view->parent = prev; |
b801d8b2 JF |
1805 | } |
1806 | ||
9f396969 | 1807 | if (view->pipe && view->lines == 0) { |
03a93dbb JF |
1808 | /* Clear the old view and let the incremental updating refill |
1809 | * the screen. */ | |
1810 | wclear(view->win); | |
f97f4012 | 1811 | report(""); |
03a93dbb JF |
1812 | } else { |
1813 | redraw_view(view); | |
24b5b3e0 | 1814 | report(""); |
03a93dbb | 1815 | } |
6706b2ba JF |
1816 | |
1817 | /* If the view is backgrounded the above calls to report() | |
1818 | * won't redraw the view title. */ | |
1819 | if (backgrounded) | |
1820 | update_view_title(view); | |
b801d8b2 JF |
1821 | } |
1822 | ||
1823 | ||
6b161b31 JF |
1824 | /* |
1825 | * User request switch noodle | |
1826 | */ | |
1827 | ||
b801d8b2 | 1828 | static int |
6b161b31 | 1829 | view_driver(struct view *view, enum request request) |
b801d8b2 | 1830 | { |
b801d8b2 JF |
1831 | int i; |
1832 | ||
1833 | switch (request) { | |
4a2909a7 JF |
1834 | case REQ_MOVE_UP: |
1835 | case REQ_MOVE_DOWN: | |
1836 | case REQ_MOVE_PAGE_UP: | |
1837 | case REQ_MOVE_PAGE_DOWN: | |
1838 | case REQ_MOVE_FIRST_LINE: | |
1839 | case REQ_MOVE_LAST_LINE: | |
b3a54cba | 1840 | move_view(view, request, TRUE); |
fd85fef1 JF |
1841 | break; |
1842 | ||
4a2909a7 JF |
1843 | case REQ_SCROLL_LINE_DOWN: |
1844 | case REQ_SCROLL_LINE_UP: | |
1845 | case REQ_SCROLL_PAGE_DOWN: | |
1846 | case REQ_SCROLL_PAGE_UP: | |
a28bcc22 | 1847 | scroll_view(view, request); |
b801d8b2 JF |
1848 | break; |
1849 | ||
4a2909a7 | 1850 | case REQ_VIEW_MAIN: |
4a2909a7 | 1851 | case REQ_VIEW_DIFF: |
2e8488b4 JF |
1852 | case REQ_VIEW_LOG: |
1853 | case REQ_VIEW_HELP: | |
6908bdbd | 1854 | case REQ_VIEW_PAGER: |
49f2b43f | 1855 | open_view(view, request, OPEN_DEFAULT); |
b801d8b2 JF |
1856 | break; |
1857 | ||
b3a54cba JF |
1858 | case REQ_NEXT: |
1859 | case REQ_PREVIOUS: | |
1860 | request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP; | |
1861 | ||
1862 | if (view == VIEW(REQ_VIEW_DIFF) && | |
1863 | view->parent == VIEW(REQ_VIEW_MAIN)) { | |
f0b3ab80 | 1864 | bool redraw = display[1] == view; |
b3a54cba JF |
1865 | |
1866 | view = view->parent; | |
1867 | move_view(view, request, redraw); | |
f0b3ab80 JF |
1868 | if (redraw) |
1869 | update_view_title(view); | |
b3a54cba JF |
1870 | } else { |
1871 | move_view(view, request, TRUE); | |
1872 | break; | |
1873 | } | |
6706b2ba JF |
1874 | /* Fall-through */ |
1875 | ||
6b161b31 | 1876 | case REQ_ENTER: |
6908bdbd JF |
1877 | if (!view->lines) { |
1878 | report("Nothing to enter"); | |
1879 | break; | |
1880 | } | |
fe7233c3 | 1881 | return view->ops->enter(view, &view->line[view->lineno]); |
6b161b31 | 1882 | |
03a93dbb JF |
1883 | case REQ_VIEW_NEXT: |
1884 | { | |
9f41488f | 1885 | int nviews = displayed_views(); |
03a93dbb JF |
1886 | int next_view = (current_view + 1) % nviews; |
1887 | ||
1888 | if (next_view == current_view) { | |
1889 | report("Only one view is displayed"); | |
1890 | break; | |
1891 | } | |
1892 | ||
1893 | current_view = next_view; | |
1894 | /* Blur out the title of the previous view. */ | |
1895 | update_view_title(view); | |
6734f6b9 | 1896 | report(""); |
03a93dbb JF |
1897 | break; |
1898 | } | |
24b5b3e0 | 1899 | case REQ_TOGGLE_LINENO: |
b76c2afc | 1900 | opt_line_number = !opt_line_number; |
20bb5e18 | 1901 | redraw_display(); |
b801d8b2 JF |
1902 | break; |
1903 | ||
54efb62b JF |
1904 | case REQ_TOGGLE_REV_GRAPH: |
1905 | opt_rev_graph = !opt_rev_graph; | |
1906 | redraw_display(); | |
1907 | break; | |
1908 | ||
03a93dbb | 1909 | case REQ_PROMPT: |
8855ada4 | 1910 | /* Always reload^Wrerun commands from the prompt. */ |
49f2b43f | 1911 | open_view(view, opt_request, OPEN_RELOAD); |
03a93dbb JF |
1912 | break; |
1913 | ||
4a2909a7 | 1914 | case REQ_STOP_LOADING: |
59a45d3a JF |
1915 | for (i = 0; i < ARRAY_SIZE(views); i++) { |
1916 | view = &views[i]; | |
2e8488b4 | 1917 | if (view->pipe) |
6a7bb912 | 1918 | report("Stopped loading the %s view", view->name), |
03a93dbb JF |
1919 | end_update(view); |
1920 | } | |
b801d8b2 JF |
1921 | break; |
1922 | ||
4a2909a7 | 1923 | case REQ_SHOW_VERSION: |
6cb291b7 | 1924 | report("%s (built %s)", VERSION, __DATE__); |
b801d8b2 JF |
1925 | return TRUE; |
1926 | ||
fac7db6c JF |
1927 | case REQ_SCREEN_RESIZE: |
1928 | resize_display(); | |
1929 | /* Fall-through */ | |
4a2909a7 | 1930 | case REQ_SCREEN_REDRAW: |
20bb5e18 | 1931 | redraw_display(); |
4a2909a7 JF |
1932 | break; |
1933 | ||
1934 | case REQ_SCREEN_UPDATE: | |
b801d8b2 JF |
1935 | doupdate(); |
1936 | return TRUE; | |
1937 | ||
4f9b667a | 1938 | case REQ_VIEW_CLOSE: |
2fcf5401 JF |
1939 | /* XXX: Mark closed views by letting view->parent point to the |
1940 | * view itself. Parents to closed view should never be | |
1941 | * followed. */ | |
1942 | if (view->parent && | |
1943 | view->parent->parent != view->parent) { | |
4f9b667a JF |
1944 | memset(display, 0, sizeof(display)); |
1945 | current_view = 0; | |
f6da0b66 | 1946 | display[current_view] = view->parent; |
2fcf5401 | 1947 | view->parent = view; |
4f9b667a JF |
1948 | resize_display(); |
1949 | redraw_display(); | |
1950 | break; | |
1951 | } | |
1952 | /* Fall-through */ | |
b801d8b2 JF |
1953 | case REQ_QUIT: |
1954 | return FALSE; | |
1955 | ||
1956 | default: | |
2e8488b4 | 1957 | /* An unknown key will show most commonly used commands. */ |
468876c9 | 1958 | report("Unknown key, press 'h' for help"); |
b801d8b2 JF |
1959 | return TRUE; |
1960 | } | |
1961 | ||
1962 | return TRUE; | |
1963 | } | |
1964 | ||
1965 | ||
1966 | /* | |
ff26aa29 | 1967 | * Pager backend |
b801d8b2 JF |
1968 | */ |
1969 | ||
6b161b31 | 1970 | static bool |
fe7233c3 | 1971 | pager_draw(struct view *view, struct line *line, unsigned int lineno) |
b801d8b2 | 1972 | { |
fe7233c3 JF |
1973 | char *text = line->data; |
1974 | enum line_type type = line->type; | |
1975 | int textlen = strlen(text); | |
78c70acd | 1976 | int attr; |
b801d8b2 | 1977 | |
6706b2ba JF |
1978 | wmove(view->win, lineno, 0); |
1979 | ||
fd85fef1 | 1980 | if (view->offset + lineno == view->lineno) { |
8855ada4 | 1981 | if (type == LINE_COMMIT) { |
fe7233c3 | 1982 | string_copy(view->ref, text + 7); |
03a93dbb JF |
1983 | string_copy(ref_commit, view->ref); |
1984 | } | |
8855ada4 | 1985 | |
78c70acd | 1986 | type = LINE_CURSOR; |
6706b2ba | 1987 | wchgat(view->win, -1, 0, type, NULL); |
fd85fef1 JF |
1988 | } |
1989 | ||
78c70acd | 1990 | attr = get_line_attr(type); |
b801d8b2 | 1991 | wattrset(view->win, attr); |
b76c2afc | 1992 | |
6706b2ba JF |
1993 | if (opt_line_number || opt_tab_size < TABSIZE) { |
1994 | static char spaces[] = " "; | |
1995 | int col_offset = 0, col = 0; | |
1996 | ||
1997 | if (opt_line_number) { | |
1998 | unsigned long real_lineno = view->offset + lineno + 1; | |
82e78006 | 1999 | |
6706b2ba JF |
2000 | if (real_lineno == 1 || |
2001 | (real_lineno % opt_num_interval) == 0) { | |
2002 | wprintw(view->win, "%.*d", view->digits, real_lineno); | |
8855ada4 | 2003 | |
6706b2ba JF |
2004 | } else { |
2005 | waddnstr(view->win, spaces, | |
2006 | MIN(view->digits, STRING_SIZE(spaces))); | |
2007 | } | |
2008 | waddstr(view->win, ": "); | |
2009 | col_offset = view->digits + 2; | |
2010 | } | |
8855ada4 | 2011 | |
fe7233c3 | 2012 | while (text && col_offset + col < view->width) { |
6706b2ba | 2013 | int cols_max = view->width - col_offset - col; |
fe7233c3 | 2014 | char *pos = text; |
6706b2ba | 2015 | int cols; |
4c6fabc2 | 2016 | |
fe7233c3 JF |
2017 | if (*text == '\t') { |
2018 | text++; | |
6706b2ba | 2019 | assert(sizeof(spaces) > TABSIZE); |
fe7233c3 | 2020 | pos = spaces; |
6706b2ba | 2021 | cols = opt_tab_size - (col % opt_tab_size); |
82e78006 | 2022 | |
b76c2afc | 2023 | } else { |
fe7233c3 JF |
2024 | text = strchr(text, '\t'); |
2025 | cols = line ? text - pos : strlen(pos); | |
b76c2afc | 2026 | } |
6706b2ba | 2027 | |
fe7233c3 | 2028 | waddnstr(view->win, pos, MIN(cols, cols_max)); |
6706b2ba | 2029 | col += cols; |
b76c2afc | 2030 | } |
b76c2afc JF |
2031 | |
2032 | } else { | |
6706b2ba | 2033 | int col = 0, pos = 0; |
b801d8b2 | 2034 | |
fe7233c3 JF |
2035 | for (; pos < textlen && col < view->width; pos++, col++) |
2036 | if (text[pos] == '\t') | |
6706b2ba JF |
2037 | col += TABSIZE - (col % TABSIZE) - 1; |
2038 | ||
fe7233c3 | 2039 | waddnstr(view->win, text, pos); |
6706b2ba | 2040 | } |
2e8488b4 | 2041 | |
b801d8b2 JF |
2042 | return TRUE; |
2043 | } | |
2044 | ||
7b99a34c JF |
2045 | static void |
2046 | add_pager_refs(struct view *view, struct line *line) | |
2047 | { | |
2048 | char buf[1024]; | |
2049 | char *data = line->data; | |
2050 | struct ref **refs; | |
2051 | int bufpos = 0, refpos = 0; | |
2052 | const char *sep = "Refs: "; | |
2053 | ||
2054 | assert(line->type == LINE_COMMIT); | |
2055 | ||
2056 | refs = get_refs(data + STRING_SIZE("commit ")); | |
2057 | if (!refs) | |
2058 | return; | |
2059 | ||
2060 | do { | |
cc2d1364 JF |
2061 | struct ref *ref = refs[refpos]; |
2062 | char *fmt = ref->tag ? "%s[%s]" : "%s%s"; | |
7b99a34c | 2063 | |
cc2d1364 JF |
2064 | if (!string_format_from(buf, &bufpos, fmt, sep, ref->name)) |
2065 | return; | |
7b99a34c JF |
2066 | sep = ", "; |
2067 | } while (refs[refpos++]->next); | |
2068 | ||
cc2d1364 | 2069 | if (!realloc_lines(view, view->line_size + 1)) |
7b99a34c JF |
2070 | return; |
2071 | ||
2072 | line = &view->line[view->lines]; | |
2073 | line->data = strdup(buf); | |
2074 | if (!line->data) | |
2075 | return; | |
2076 | ||
2077 | line->type = LINE_PP_REFS; | |
2078 | view->lines++; | |
2079 | } | |
2080 | ||
6b161b31 | 2081 | static bool |
701e4f5d | 2082 | pager_read(struct view *view, char *data) |
22f66b0a | 2083 | { |
7b99a34c | 2084 | struct line *line = &view->line[view->lines]; |
22f66b0a | 2085 | |
7b99a34c JF |
2086 | line->data = strdup(data); |
2087 | if (!line->data) | |
2088 | return FALSE; | |
fe7233c3 | 2089 | |
7b99a34c | 2090 | line->type = get_line_type(line->data); |
22f66b0a | 2091 | view->lines++; |
7b99a34c JF |
2092 | |
2093 | if (line->type == LINE_COMMIT && | |
2094 | (view == VIEW(REQ_VIEW_DIFF) || | |
2095 | view == VIEW(REQ_VIEW_LOG))) | |
2096 | add_pager_refs(view, line); | |
2097 | ||
22f66b0a JF |
2098 | return TRUE; |
2099 | } | |
2100 | ||
6b161b31 | 2101 | static bool |
fe7233c3 | 2102 | pager_enter(struct view *view, struct line *line) |
6b161b31 | 2103 | { |
91e8e277 | 2104 | int split = 0; |
6b161b31 | 2105 | |
9fbbd28f JF |
2106 | if (line->type == LINE_COMMIT && |
2107 | (view == VIEW(REQ_VIEW_LOG) || | |
2108 | view == VIEW(REQ_VIEW_PAGER))) { | |
91e8e277 JF |
2109 | open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT); |
2110 | split = 1; | |
67e48ac5 JF |
2111 | } |
2112 | ||
91e8e277 JF |
2113 | /* Always scroll the view even if it was split. That way |
2114 | * you can use Enter to scroll through the log view and | |
2115 | * split open each commit diff. */ | |
2116 | scroll_view(view, REQ_SCROLL_LINE_DOWN); | |
2117 | ||
2118 | /* FIXME: A minor workaround. Scrolling the view will call report("") | |
9d82d824 JF |
2119 | * but if we are scrolling a non-current view this won't properly |
2120 | * update the view title. */ | |
91e8e277 JF |
2121 | if (split) |
2122 | update_view_title(view); | |
6b161b31 JF |
2123 | |
2124 | return TRUE; | |
2125 | } | |
2126 | ||
6b161b31 | 2127 | static struct view_ops pager_ops = { |
6734f6b9 | 2128 | "line", |
6b161b31 JF |
2129 | pager_draw, |
2130 | pager_read, | |
2131 | pager_enter, | |
2132 | }; | |
2133 | ||
80ce96ea | 2134 | |
ff26aa29 JF |
2135 | /* |
2136 | * Main view backend | |
2137 | */ | |
2138 | ||
2139 | struct commit { | |
54efb62b JF |
2140 | char id[41]; /* SHA1 ID. */ |
2141 | char title[75]; /* First line of the commit message. */ | |
2142 | char author[75]; /* Author of the commit. */ | |
2143 | struct tm time; /* Date from the author ident. */ | |
2144 | struct ref **refs; /* Repository references. */ | |
2145 | chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */ | |
2146 | size_t graph_size; /* The width of the graph array. */ | |
ff26aa29 | 2147 | }; |
c34d9c9f | 2148 | |
6b161b31 | 2149 | static bool |
fe7233c3 | 2150 | main_draw(struct view *view, struct line *line, unsigned int lineno) |
22f66b0a | 2151 | { |
2e8488b4 | 2152 | char buf[DATE_COLS + 1]; |
fe7233c3 | 2153 | struct commit *commit = line->data; |
78c70acd | 2154 | enum line_type type; |
6706b2ba | 2155 | int col = 0; |
b76c2afc | 2156 | size_t timelen; |
10e290ee | 2157 | size_t authorlen; |
9989bf60 | 2158 | int trimmed = 1; |
22f66b0a | 2159 | |
4c6fabc2 JF |
2160 | if (!*commit->author) |
2161 | return FALSE; | |
22f66b0a | 2162 | |
6706b2ba JF |
2163 | wmove(view->win, lineno, col); |
2164 | ||
22f66b0a | 2165 | if (view->offset + lineno == view->lineno) { |
03a93dbb | 2166 | string_copy(view->ref, commit->id); |
49f2b43f | 2167 | string_copy(ref_commit, view->ref); |
78c70acd | 2168 | type = LINE_CURSOR; |
6706b2ba JF |
2169 | wattrset(view->win, get_line_attr(type)); |
2170 | wchgat(view->win, -1, 0, type, NULL); | |
2171 | ||
78c70acd | 2172 | } else { |
b76c2afc | 2173 | type = LINE_MAIN_COMMIT; |
6706b2ba | 2174 | wattrset(view->win, get_line_attr(LINE_MAIN_DATE)); |
b76c2afc JF |
2175 | } |
2176 | ||
4c6fabc2 | 2177 | timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time); |
b76c2afc | 2178 | waddnstr(view->win, buf, timelen); |
4c6fabc2 | 2179 | waddstr(view->win, " "); |
b76c2afc | 2180 | |
6706b2ba JF |
2181 | col += DATE_COLS; |
2182 | wmove(view->win, lineno, col); | |
2183 | if (type != LINE_CURSOR) | |
2184 | wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR)); | |
b76c2afc | 2185 | |
9989bf60 JF |
2186 | if (opt_utf8) { |
2187 | authorlen = utf8_length(commit->author, AUTHOR_COLS - 2, &col, &trimmed); | |
2188 | } else { | |
2189 | authorlen = strlen(commit->author); | |
2190 | if (authorlen > AUTHOR_COLS - 2) { | |
2191 | authorlen = AUTHOR_COLS - 2; | |
2192 | trimmed = 1; | |
2193 | } | |
2194 | } | |
10e290ee JF |
2195 | |
2196 | if (trimmed) { | |
2197 | waddnstr(view->win, commit->author, authorlen); | |
6706b2ba JF |
2198 | if (type != LINE_CURSOR) |
2199 | wattrset(view->win, get_line_attr(LINE_MAIN_DELIM)); | |
b76c2afc JF |
2200 | waddch(view->win, '~'); |
2201 | } else { | |
2202 | waddstr(view->win, commit->author); | |
22f66b0a JF |
2203 | } |
2204 | ||
10e290ee | 2205 | col += AUTHOR_COLS; |
6706b2ba JF |
2206 | if (type != LINE_CURSOR) |
2207 | wattrset(view->win, A_NORMAL); | |
2208 | ||
54efb62b JF |
2209 | if (opt_rev_graph && commit->graph_size) { |
2210 | size_t i; | |
2211 | ||
2212 | wmove(view->win, lineno, col); | |
2213 | /* Using waddch() instead of waddnstr() ensures that | |
2214 | * they'll be rendered correctly for the cursor line. */ | |
2215 | for (i = 0; i < commit->graph_size; i++) | |
2216 | waddch(view->win, commit->graph[i]); | |
2217 | ||
2218 | col += commit->graph_size + 1; | |
2219 | } | |
2220 | ||
2221 | wmove(view->win, lineno, col); | |
c34d9c9f JF |
2222 | |
2223 | if (commit->refs) { | |
2224 | size_t i = 0; | |
2225 | ||
2226 | do { | |
6706b2ba JF |
2227 | if (type == LINE_CURSOR) |
2228 | ; | |
2229 | else if (commit->refs[i]->tag) | |
c34d9c9f JF |
2230 | wattrset(view->win, get_line_attr(LINE_MAIN_TAG)); |
2231 | else | |
2232 | wattrset(view->win, get_line_attr(LINE_MAIN_REF)); | |
2233 | waddstr(view->win, "["); | |
2234 | waddstr(view->win, commit->refs[i]->name); | |
2235 | waddstr(view->win, "]"); | |
6706b2ba JF |
2236 | if (type != LINE_CURSOR) |
2237 | wattrset(view->win, A_NORMAL); | |
c34d9c9f | 2238 | waddstr(view->win, " "); |
6706b2ba | 2239 | col += strlen(commit->refs[i]->name) + STRING_SIZE("[] "); |
c34d9c9f JF |
2240 | } while (commit->refs[i++]->next); |
2241 | } | |
2242 | ||
6706b2ba JF |
2243 | if (type != LINE_CURSOR) |
2244 | wattrset(view->win, get_line_attr(type)); | |
2245 | ||
2246 | { | |
2247 | int titlelen = strlen(commit->title); | |
2248 | ||
2249 | if (col + titlelen > view->width) | |
2250 | titlelen = view->width - col; | |
2251 | ||
2252 | waddnstr(view->win, commit->title, titlelen); | |
2253 | } | |
22f66b0a JF |
2254 | |
2255 | return TRUE; | |
2256 | } | |
2257 | ||
4c6fabc2 | 2258 | /* Reads git log --pretty=raw output and parses it into the commit struct. */ |
6b161b31 | 2259 | static bool |
701e4f5d | 2260 | main_read(struct view *view, char *line) |
22f66b0a | 2261 | { |
78c70acd | 2262 | enum line_type type = get_line_type(line); |
701e4f5d JF |
2263 | struct commit *commit = view->lines |
2264 | ? view->line[view->lines - 1].data : NULL; | |
22f66b0a | 2265 | |
78c70acd JF |
2266 | switch (type) { |
2267 | case LINE_COMMIT: | |
22f66b0a JF |
2268 | commit = calloc(1, sizeof(struct commit)); |
2269 | if (!commit) | |
2270 | return FALSE; | |
2271 | ||
4c6fabc2 | 2272 | line += STRING_SIZE("commit "); |
b76c2afc | 2273 | |
fe7233c3 | 2274 | view->line[view->lines++].data = commit; |
82e78006 | 2275 | string_copy(commit->id, line); |
c34d9c9f | 2276 | commit->refs = get_refs(commit->id); |
54efb62b | 2277 | commit->graph[commit->graph_size++] = ACS_LTEE; |
78c70acd | 2278 | break; |
22f66b0a | 2279 | |
8855ada4 | 2280 | case LINE_AUTHOR: |
b76c2afc | 2281 | { |
4c6fabc2 | 2282 | char *ident = line + STRING_SIZE("author "); |
b76c2afc JF |
2283 | char *end = strchr(ident, '<'); |
2284 | ||
701e4f5d | 2285 | if (!commit) |
fe7233c3 JF |
2286 | break; |
2287 | ||
b76c2afc JF |
2288 | if (end) { |
2289 | for (; end > ident && isspace(end[-1]); end--) ; | |
2290 | *end = 0; | |
2291 | } | |
2292 | ||
82e78006 | 2293 | string_copy(commit->author, ident); |
b76c2afc | 2294 | |
4c6fabc2 | 2295 | /* Parse epoch and timezone */ |
b76c2afc JF |
2296 | if (end) { |
2297 | char *secs = strchr(end + 1, '>'); | |
2298 | char *zone; | |
2299 | time_t time; | |
2300 | ||
2301 | if (!secs || secs[1] != ' ') | |
2302 | break; | |
2303 | ||
2304 | secs += 2; | |
2305 | time = (time_t) atol(secs); | |
2306 | zone = strchr(secs, ' '); | |
4c6fabc2 | 2307 | if (zone && strlen(zone) == STRING_SIZE(" +0700")) { |
b76c2afc JF |
2308 | long tz; |
2309 | ||
2310 | zone++; | |
2311 | tz = ('0' - zone[1]) * 60 * 60 * 10; | |
2312 | tz += ('0' - zone[2]) * 60 * 60; | |
2313 | tz += ('0' - zone[3]) * 60; | |
2314 | tz += ('0' - zone[4]) * 60; | |
2315 | ||
2316 | if (zone[0] == '-') | |
2317 | tz = -tz; | |
2318 | ||
2319 | time -= tz; | |
2320 | } | |
2321 | gmtime_r(&time, &commit->time); | |
2322 | } | |
2323 | break; | |
2324 | } | |
78c70acd | 2325 | default: |
701e4f5d | 2326 | if (!commit) |
2e8488b4 JF |
2327 | break; |
2328 | ||
2329 | /* Fill in the commit title if it has not already been set. */ | |
2e8488b4 JF |
2330 | if (commit->title[0]) |
2331 | break; | |
2332 | ||
2333 | /* Require titles to start with a non-space character at the | |
2334 | * offset used by git log. */ | |
eb98559e JF |
2335 | /* FIXME: More gracefull handling of titles; append "..." to |
2336 | * shortened titles, etc. */ | |
2e8488b4 | 2337 | if (strncmp(line, " ", 4) || |
eb98559e | 2338 | isspace(line[4])) |
82e78006 JF |
2339 | break; |
2340 | ||
2341 | string_copy(commit->title, line + 4); | |
22f66b0a JF |
2342 | } |
2343 | ||
2344 | return TRUE; | |
2345 | } | |
2346 | ||
6b161b31 | 2347 | static bool |
fe7233c3 | 2348 | main_enter(struct view *view, struct line *line) |
b801d8b2 | 2349 | { |
b3a54cba JF |
2350 | enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT; |
2351 | ||
2352 | open_view(view, REQ_VIEW_DIFF, flags); | |
6b161b31 | 2353 | return TRUE; |
b801d8b2 JF |
2354 | } |
2355 | ||
6b161b31 | 2356 | static struct view_ops main_ops = { |
6734f6b9 | 2357 | "commit", |
6b161b31 JF |
2358 | main_draw, |
2359 | main_read, | |
2360 | main_enter, | |
2361 | }; | |
2e8488b4 | 2362 | |
c34d9c9f | 2363 | |
6b161b31 | 2364 | /* |
10e290ee JF |
2365 | * Unicode / UTF-8 handling |
2366 | * | |
2367 | * NOTE: Much of the following code for dealing with unicode is derived from | |
2368 | * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is | |
2369 | * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28. | |
2370 | */ | |
2371 | ||
2372 | /* I've (over)annotated a lot of code snippets because I am not entirely | |
2373 | * confident that the approach taken by this small UTF-8 interface is correct. | |
2374 | * --jonas */ | |
2375 | ||
2376 | static inline int | |
2377 | unicode_width(unsigned long c) | |
2378 | { | |
2379 | if (c >= 0x1100 && | |
2380 | (c <= 0x115f /* Hangul Jamo */ | |
2381 | || c == 0x2329 | |
2382 | || c == 0x232a | |
2383 | || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f) | |
f97f4012 | 2384 | /* CJK ... Yi */ |
10e290ee JF |
2385 | || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */ |
2386 | || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */ | |
2387 | || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */ | |
2388 | || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */ | |
2389 | || (c >= 0xffe0 && c <= 0xffe6) | |
2390 | || (c >= 0x20000 && c <= 0x2fffd) | |
2391 | || (c >= 0x30000 && c <= 0x3fffd))) | |
2392 | return 2; | |
2393 | ||
2394 | return 1; | |
2395 | } | |
2396 | ||
2397 | /* Number of bytes used for encoding a UTF-8 character indexed by first byte. | |
2398 | * Illegal bytes are set one. */ | |
2399 | static const unsigned char utf8_bytes[256] = { | |
2400 | 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, | |
2401 | 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, | |
2402 | 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, | |
2403 | 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, | |
2404 | 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, | |
2405 | 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, | |
2406 | 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, | |
2407 | 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, | |
2408 | }; | |
2409 | ||
2410 | /* Decode UTF-8 multi-byte representation into a unicode character. */ | |
2411 | static inline unsigned long | |
2412 | utf8_to_unicode(const char *string, size_t length) | |
2413 | { | |
2414 | unsigned long unicode; | |
2415 | ||
2416 | switch (length) { | |
2417 | case 1: | |
2418 | unicode = string[0]; | |
2419 | break; | |
2420 | case 2: | |
2421 | unicode = (string[0] & 0x1f) << 6; | |
2422 | unicode += (string[1] & 0x3f); | |
2423 | break; | |
2424 | case 3: | |
2425 | unicode = (string[0] & 0x0f) << 12; | |
2426 | unicode += ((string[1] & 0x3f) << 6); | |
2427 | unicode += (string[2] & 0x3f); | |
2428 | break; | |
2429 | case 4: | |
2430 | unicode = (string[0] & 0x0f) << 18; | |
2431 | unicode += ((string[1] & 0x3f) << 12); | |
2432 | unicode += ((string[2] & 0x3f) << 6); | |
2433 | unicode += (string[3] & 0x3f); | |
2434 | break; | |
2435 | case 5: | |
2436 | unicode = (string[0] & 0x0f) << 24; | |
2437 | unicode += ((string[1] & 0x3f) << 18); | |
2438 | unicode += ((string[2] & 0x3f) << 12); | |
2439 | unicode += ((string[3] & 0x3f) << 6); | |
2440 | unicode += (string[4] & 0x3f); | |
2441 | break; | |
68b6e0eb | 2442 | case 6: |
10e290ee JF |
2443 | unicode = (string[0] & 0x01) << 30; |
2444 | unicode += ((string[1] & 0x3f) << 24); | |
2445 | unicode += ((string[2] & 0x3f) << 18); | |
2446 | unicode += ((string[3] & 0x3f) << 12); | |
2447 | unicode += ((string[4] & 0x3f) << 6); | |
2448 | unicode += (string[5] & 0x3f); | |
2449 | break; | |
2450 | default: | |
2451 | die("Invalid unicode length"); | |
2452 | } | |
2453 | ||
2454 | /* Invalid characters could return the special 0xfffd value but NUL | |
2455 | * should be just as good. */ | |
2456 | return unicode > 0xffff ? 0 : unicode; | |
2457 | } | |
2458 | ||
2459 | /* Calculates how much of string can be shown within the given maximum width | |
2460 | * and sets trimmed parameter to non-zero value if all of string could not be | |
2461 | * shown. | |
2462 | * | |
2463 | * Additionally, adds to coloffset how many many columns to move to align with | |
2464 | * the expected position. Takes into account how multi-byte and double-width | |
2465 | * characters will effect the cursor position. | |
2466 | * | |
2467 | * Returns the number of bytes to output from string to satisfy max_width. */ | |
2468 | static size_t | |
2469 | utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed) | |
2470 | { | |
2471 | const char *start = string; | |
2472 | const char *end = strchr(string, '\0'); | |
2473 | size_t mbwidth = 0; | |
2474 | size_t width = 0; | |
2475 | ||
2476 | *trimmed = 0; | |
2477 | ||
2478 | while (string < end) { | |
2479 | int c = *(unsigned char *) string; | |
2480 | unsigned char bytes = utf8_bytes[c]; | |
2481 | size_t ucwidth; | |
2482 | unsigned long unicode; | |
2483 | ||
2484 | if (string + bytes > end) | |
2485 | break; | |
2486 | ||
2487 | /* Change representation to figure out whether | |
2488 | * it is a single- or double-width character. */ | |
2489 | ||
2490 | unicode = utf8_to_unicode(string, bytes); | |
2491 | /* FIXME: Graceful handling of invalid unicode character. */ | |
2492 | if (!unicode) | |
2493 | break; | |
2494 | ||
2495 | ucwidth = unicode_width(unicode); | |
2496 | width += ucwidth; | |
2497 | if (width > max_width) { | |
2498 | *trimmed = 1; | |
2499 | break; | |
2500 | } | |
2501 | ||
2502 | /* The column offset collects the differences between the | |
2503 | * number of bytes encoding a character and the number of | |
2504 | * columns will be used for rendering said character. | |
2505 | * | |
2506 | * So if some character A is encoded in 2 bytes, but will be | |
2507 | * represented on the screen using only 1 byte this will and up | |
2508 | * adding 1 to the multi-byte column offset. | |
2509 | * | |
2510 | * Assumes that no double-width character can be encoding in | |
2511 | * less than two bytes. */ | |
2512 | if (bytes > ucwidth) | |
2513 | mbwidth += bytes - ucwidth; | |
2514 | ||
2515 | string += bytes; | |
2516 | } | |
2517 | ||
2518 | *coloffset += mbwidth; | |
2519 | ||
2520 | return string - start; | |
2521 | } | |
2522 | ||
2523 | ||
2524 | /* | |
6b161b31 JF |
2525 | * Status management |
2526 | */ | |
2e8488b4 | 2527 | |
8855ada4 | 2528 | /* Whether or not the curses interface has been initialized. */ |
68b6e0eb | 2529 | static bool cursed = FALSE; |
8855ada4 | 2530 | |
6b161b31 JF |
2531 | /* The status window is used for polling keystrokes. */ |
2532 | static WINDOW *status_win; | |
4a2909a7 | 2533 | |
2e8488b4 | 2534 | /* Update status and title window. */ |
4a2909a7 JF |
2535 | static void |
2536 | report(const char *msg, ...) | |
2537 | { | |
6706b2ba JF |
2538 | static bool empty = TRUE; |
2539 | struct view *view = display[current_view]; | |
b76c2afc | 2540 | |
6706b2ba JF |
2541 | if (!empty || *msg) { |
2542 | va_list args; | |
4a2909a7 | 2543 | |
6706b2ba | 2544 | va_start(args, msg); |
4b76734f | 2545 | |
6706b2ba JF |
2546 | werase(status_win); |
2547 | wmove(status_win, 0, 0); | |
2548 | if (*msg) { | |
2549 | vwprintw(status_win, msg, args); | |
2550 | empty = FALSE; | |
2551 | } else { | |
2552 | empty = TRUE; | |
2553 | } | |
2554 | wrefresh(status_win); | |
b801d8b2 | 2555 | |
6706b2ba JF |
2556 | va_end(args); |
2557 | } | |
2558 | ||
2559 | update_view_title(view); | |
85af6284 | 2560 | update_display_cursor(); |
b801d8b2 JF |
2561 | } |
2562 | ||
6b161b31 JF |
2563 | /* Controls when nodelay should be in effect when polling user input. */ |
2564 | static void | |
1ba2ae4b | 2565 | set_nonblocking_input(bool loading) |
b801d8b2 | 2566 | { |
6706b2ba | 2567 | static unsigned int loading_views; |
b801d8b2 | 2568 | |
6706b2ba JF |
2569 | if ((loading == FALSE && loading_views-- == 1) || |
2570 | (loading == TRUE && loading_views++ == 0)) | |
1ba2ae4b | 2571 | nodelay(status_win, loading); |
6b161b31 JF |
2572 | } |
2573 | ||
2574 | static void | |
2575 | init_display(void) | |
2576 | { | |
2577 | int x, y; | |
b76c2afc | 2578 | |
6908bdbd JF |
2579 | /* Initialize the curses library */ |
2580 | if (isatty(STDIN_FILENO)) { | |
8855ada4 | 2581 | cursed = !!initscr(); |
6908bdbd JF |
2582 | } else { |
2583 | /* Leave stdin and stdout alone when acting as a pager. */ | |
2584 | FILE *io = fopen("/dev/tty", "r+"); | |
2585 | ||
8855ada4 | 2586 | cursed = !!newterm(NULL, io, io); |
6908bdbd JF |
2587 | } |
2588 | ||
8855ada4 JF |
2589 | if (!cursed) |
2590 | die("Failed to initialize curses"); | |
2591 | ||
2e8488b4 JF |
2592 | nonl(); /* Tell curses not to do NL->CR/NL on output */ |
2593 | cbreak(); /* Take input chars one at a time, no wait for \n */ | |
2594 | noecho(); /* Don't echo input */ | |
b801d8b2 | 2595 | leaveok(stdscr, TRUE); |
b801d8b2 JF |
2596 | |
2597 | if (has_colors()) | |
2598 | init_colors(); | |
2599 | ||
2600 | getmaxyx(stdscr, y, x); | |
2601 | status_win = newwin(1, 0, y - 1, 0); | |
2602 | if (!status_win) | |
2603 | die("Failed to create status window"); | |
2604 | ||
2605 | /* Enable keyboard mapping */ | |
2606 | keypad(status_win, TRUE); | |
78c70acd | 2607 | wbkgdset(status_win, get_line_attr(LINE_STATUS)); |
6b161b31 JF |
2608 | } |
2609 | ||
ef5404a4 JF |
2610 | static int |
2611 | read_prompt(void) | |
2612 | { | |
2613 | enum { READING, STOP, CANCEL } status = READING; | |
2614 | char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")]; | |
2615 | int pos = 0; | |
2616 | ||
2617 | while (status == READING) { | |
2618 | struct view *view; | |
2619 | int i, key; | |
2620 | ||
2621 | foreach_view (view, i) | |
2622 | update_view(view); | |
2623 | ||
2624 | report(":%.*s", pos, buf); | |
2625 | /* Refresh, accept single keystroke of input */ | |
2626 | key = wgetch(status_win); | |
2627 | switch (key) { | |
2628 | case KEY_RETURN: | |
2629 | case KEY_ENTER: | |
2630 | case '\n': | |
2631 | status = pos ? STOP : CANCEL; | |
2632 | break; | |
2633 | ||
2634 | case KEY_BACKSPACE: | |
2635 | if (pos > 0) | |
2636 | pos--; | |
2637 | else | |
2638 | status = CANCEL; | |
2639 | break; | |
2640 | ||
2641 | case KEY_ESC: | |
2642 | status = CANCEL; | |
2643 | break; | |
2644 | ||
2645 | case ERR: | |
2646 | break; | |
2647 | ||
2648 | default: | |
2649 | if (pos >= sizeof(buf)) { | |
2650 | report("Input string too long"); | |
2651 | return ERR; | |
2652 | } | |
2653 | ||
2654 | if (isprint(key)) | |
2655 | buf[pos++] = (char) key; | |
2656 | } | |
2657 | } | |
2658 | ||
2659 | if (status == CANCEL) { | |
2660 | /* Clear the status window */ | |
2661 | report(""); | |
2662 | return ERR; | |
2663 | } | |
2664 | ||
2665 | buf[pos++] = 0; | |
2666 | if (!string_format(opt_cmd, "git %s", buf)) | |
2667 | return ERR; | |
2668 | opt_request = REQ_VIEW_PAGER; | |
2669 | ||
2670 | return OK; | |
2671 | } | |
c34d9c9f JF |
2672 | |
2673 | /* | |
2674 | * Repository references | |
2675 | */ | |
2676 | ||
2677 | static struct ref *refs; | |
3a91b75e | 2678 | static size_t refs_size; |
c34d9c9f | 2679 | |
1307df1a JF |
2680 | /* Id <-> ref store */ |
2681 | static struct ref ***id_refs; | |
2682 | static size_t id_refs_size; | |
2683 | ||
c34d9c9f JF |
2684 | static struct ref ** |
2685 | get_refs(char *id) | |
2686 | { | |
1307df1a JF |
2687 | struct ref ***tmp_id_refs; |
2688 | struct ref **ref_list = NULL; | |
2689 | size_t ref_list_size = 0; | |
c34d9c9f JF |
2690 | size_t i; |
2691 | ||
1307df1a JF |
2692 | for (i = 0; i < id_refs_size; i++) |
2693 | if (!strcmp(id, id_refs[i][0]->id)) | |
2694 | return id_refs[i]; | |
2695 | ||
2696 | tmp_id_refs = realloc(id_refs, (id_refs_size + 1) * sizeof(*id_refs)); | |
2697 | if (!tmp_id_refs) | |
2698 | return NULL; | |
2699 | ||
2700 | id_refs = tmp_id_refs; | |
2701 | ||
c34d9c9f JF |
2702 | for (i = 0; i < refs_size; i++) { |
2703 | struct ref **tmp; | |
2704 | ||
2705 | if (strcmp(id, refs[i].id)) | |
2706 | continue; | |
2707 | ||
1307df1a | 2708 | tmp = realloc(ref_list, (ref_list_size + 1) * sizeof(*ref_list)); |
c34d9c9f | 2709 | if (!tmp) { |
1307df1a JF |
2710 | if (ref_list) |
2711 | free(ref_list); | |
c34d9c9f JF |
2712 | return NULL; |
2713 | } | |
2714 | ||
1307df1a JF |
2715 | ref_list = tmp; |
2716 | if (ref_list_size > 0) | |
2717 | ref_list[ref_list_size - 1]->next = 1; | |
2718 | ref_list[ref_list_size] = &refs[i]; | |
3af8774e JF |
2719 | |
2720 | /* XXX: The properties of the commit chains ensures that we can | |
2721 | * safely modify the shared ref. The repo references will | |
2722 | * always be similar for the same id. */ | |
1307df1a JF |
2723 | ref_list[ref_list_size]->next = 0; |
2724 | ref_list_size++; | |
c34d9c9f JF |
2725 | } |
2726 | ||
1307df1a JF |
2727 | if (ref_list) |
2728 | id_refs[id_refs_size++] = ref_list; | |
2729 | ||
2730 | return ref_list; | |
c34d9c9f JF |
2731 | } |
2732 | ||
2733 | static int | |
d0cea5f9 | 2734 | read_ref(char *id, int idlen, char *name, int namelen) |
c34d9c9f | 2735 | { |
d0cea5f9 JF |
2736 | struct ref *ref; |
2737 | bool tag = FALSE; | |
d0cea5f9 | 2738 | |
8b0297ae JF |
2739 | if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) { |
2740 | /* Commits referenced by tags has "^{}" appended. */ | |
2741 | if (name[namelen - 1] != '}') | |
2742 | return OK; | |
2743 | ||
d0cea5f9 JF |
2744 | while (namelen > 0 && name[namelen] != '^') |
2745 | namelen--; | |
c34d9c9f | 2746 | |
d0cea5f9 | 2747 | tag = TRUE; |
8b0297ae JF |
2748 | namelen -= STRING_SIZE("refs/tags/"); |
2749 | name += STRING_SIZE("refs/tags/"); | |
c34d9c9f | 2750 | |
d0cea5f9 | 2751 | } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) { |
8b0297ae JF |
2752 | namelen -= STRING_SIZE("refs/heads/"); |
2753 | name += STRING_SIZE("refs/heads/"); | |
c34d9c9f | 2754 | |
d0cea5f9 JF |
2755 | } else if (!strcmp(name, "HEAD")) { |
2756 | return OK; | |
2757 | } | |
6706b2ba | 2758 | |
d0cea5f9 JF |
2759 | refs = realloc(refs, sizeof(*refs) * (refs_size + 1)); |
2760 | if (!refs) | |
2761 | return ERR; | |
c34d9c9f | 2762 | |
d0cea5f9 | 2763 | ref = &refs[refs_size++]; |
8b0297ae | 2764 | ref->name = malloc(namelen + 1); |
d0cea5f9 JF |
2765 | if (!ref->name) |
2766 | return ERR; | |
3af8774e | 2767 | |
8b0297ae JF |
2768 | strncpy(ref->name, name, namelen); |
2769 | ref->name[namelen] = 0; | |
d0cea5f9 JF |
2770 | ref->tag = tag; |
2771 | string_copy(ref->id, id); | |
3af8774e | 2772 | |
d0cea5f9 JF |
2773 | return OK; |
2774 | } | |
c34d9c9f | 2775 | |
d0cea5f9 JF |
2776 | static int |
2777 | load_refs(void) | |
2778 | { | |
2779 | const char *cmd_env = getenv("TIG_LS_REMOTE"); | |
2780 | const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE; | |
c34d9c9f | 2781 | |
4a63c884 | 2782 | return read_properties(popen(cmd, "r"), "\t", read_ref); |
d0cea5f9 | 2783 | } |
c34d9c9f | 2784 | |
d0cea5f9 | 2785 | static int |
14c778a6 | 2786 | read_repo_config_option(char *name, int namelen, char *value, int valuelen) |
d0cea5f9 | 2787 | { |
22913179 | 2788 | if (!strcmp(name, "i18n.commitencoding")) |
d0cea5f9 | 2789 | string_copy(opt_encoding, value); |
c34d9c9f | 2790 | |
c34d9c9f JF |
2791 | return OK; |
2792 | } | |
2793 | ||
4670cf89 | 2794 | static int |
14c778a6 | 2795 | load_repo_config(void) |
4670cf89 | 2796 | { |
66749723 | 2797 | return read_properties(popen("git repo-config --list", "r"), |
14c778a6 | 2798 | "=", read_repo_config_option); |
d0cea5f9 JF |
2799 | } |
2800 | ||
2801 | static int | |
4a63c884 | 2802 | read_properties(FILE *pipe, const char *separators, |
d0cea5f9 JF |
2803 | int (*read_property)(char *, int, char *, int)) |
2804 | { | |
4670cf89 JF |
2805 | char buffer[BUFSIZ]; |
2806 | char *name; | |
d0cea5f9 | 2807 | int state = OK; |
4670cf89 JF |
2808 | |
2809 | if (!pipe) | |
2810 | return ERR; | |
2811 | ||
d0cea5f9 | 2812 | while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) { |
4a63c884 JF |
2813 | char *value; |
2814 | size_t namelen; | |
2815 | size_t valuelen; | |
4670cf89 | 2816 | |
4a63c884 JF |
2817 | name = chomp_string(name); |
2818 | namelen = strcspn(name, separators); | |
2819 | ||
2820 | if (name[namelen]) { | |
2821 | name[namelen] = 0; | |
2822 | value = chomp_string(name + namelen + 1); | |
d0cea5f9 | 2823 | valuelen = strlen(value); |
4670cf89 | 2824 | |
d0cea5f9 | 2825 | } else { |
d0cea5f9 JF |
2826 | value = ""; |
2827 | valuelen = 0; | |
4670cf89 | 2828 | } |
d0cea5f9 | 2829 | |
3c3801c2 | 2830 | state = read_property(name, namelen, value, valuelen); |
4670cf89 JF |
2831 | } |
2832 | ||
d0cea5f9 JF |
2833 | if (state != ERR && ferror(pipe)) |
2834 | state = ERR; | |
4670cf89 JF |
2835 | |
2836 | pclose(pipe); | |
2837 | ||
d0cea5f9 | 2838 | return state; |
4670cf89 JF |
2839 | } |
2840 | ||
d0cea5f9 | 2841 | |
6b161b31 JF |
2842 | /* |
2843 | * Main | |
2844 | */ | |
2845 | ||
b5c9e67f | 2846 | static void __NORETURN |
6b161b31 JF |
2847 | quit(int sig) |
2848 | { | |
8855ada4 JF |
2849 | /* XXX: Restore tty modes and let the OS cleanup the rest! */ |
2850 | if (cursed) | |
2851 | endwin(); | |
6b161b31 JF |
2852 | exit(0); |
2853 | } | |
2854 | ||
c6704a4e JF |
2855 | static void __NORETURN |
2856 | die(const char *err, ...) | |
6b161b31 JF |
2857 | { |
2858 | va_list args; | |
2859 | ||
2860 | endwin(); | |
2861 | ||
2862 | va_start(args, err); | |
2863 | fputs("tig: ", stderr); | |
2864 | vfprintf(stderr, err, args); | |
2865 | fputs("\n", stderr); | |
2866 | va_end(args); | |
2867 | ||
2868 | exit(1); | |
2869 | } | |
2870 | ||
2871 | int | |
2872 | main(int argc, char *argv[]) | |
2873 | { | |
1ba2ae4b | 2874 | struct view *view; |
6b161b31 | 2875 | enum request request; |
1ba2ae4b | 2876 | size_t i; |
6b161b31 JF |
2877 | |
2878 | signal(SIGINT, quit); | |
2879 | ||
660e09ad JF |
2880 | if (load_options() == ERR) |
2881 | die("Failed to load user config."); | |
2882 | ||
2883 | /* Load the repo config file so options can be overwritten from | |
afdc35b3 | 2884 | * the command line. */ |
14c778a6 | 2885 | if (load_repo_config() == ERR) |
afdc35b3 JF |
2886 | die("Failed to load repo config."); |
2887 | ||
8855ada4 | 2888 | if (!parse_options(argc, argv)) |
6b161b31 JF |
2889 | return 0; |
2890 | ||
c34d9c9f JF |
2891 | if (load_refs() == ERR) |
2892 | die("Failed to load refs."); | |
2893 | ||
7bb55251 JF |
2894 | /* Require a git repository unless when running in pager mode. */ |
2895 | if (refs_size == 0 && opt_request != REQ_VIEW_PAGER) | |
2896 | die("Not a git repository"); | |
2897 | ||
1ba2ae4b JF |
2898 | for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++) |
2899 | view->cmd_env = getenv(view->cmd_env); | |
2900 | ||
6b161b31 JF |
2901 | request = opt_request; |
2902 | ||
2903 | init_display(); | |
b801d8b2 JF |
2904 | |
2905 | while (view_driver(display[current_view], request)) { | |
6b161b31 | 2906 | int key; |
b801d8b2 JF |
2907 | int i; |
2908 | ||
6b161b31 JF |
2909 | foreach_view (view, i) |
2910 | update_view(view); | |
b801d8b2 JF |
2911 | |
2912 | /* Refresh, accept single keystroke of input */ | |
6b161b31 | 2913 | key = wgetch(status_win); |
04e2b7b2 JF |
2914 | |
2915 | request = get_keybinding(display[current_view]->keymap, key); | |
03a93dbb | 2916 | |
6706b2ba | 2917 | /* Some low-level request handling. This keeps access to |
fac7db6c JF |
2918 | * status_win restricted. */ |
2919 | switch (request) { | |
2920 | case REQ_PROMPT: | |
ef5404a4 | 2921 | if (read_prompt() == ERR) |
6a7bb912 | 2922 | request = REQ_SCREEN_UPDATE; |
fac7db6c JF |
2923 | break; |
2924 | ||
2925 | case REQ_SCREEN_RESIZE: | |
2926 | { | |
2927 | int height, width; | |
2928 | ||
2929 | getmaxyx(stdscr, height, width); | |
2930 | ||
2931 | /* Resize the status view and let the view driver take | |
2932 | * care of resizing the displayed views. */ | |
2933 | wresize(status_win, 1, width); | |
2934 | mvwin(status_win, height - 1, 0); | |
2935 | wrefresh(status_win); | |
2936 | break; | |
2937 | } | |
2938 | default: | |
2939 | break; | |
03a93dbb | 2940 | } |
b801d8b2 JF |
2941 | } |
2942 | ||
2943 | quit(0); | |
2944 | ||
2945 | return 0; | |
2946 | } |