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); |
24b5b3e0 | 46 | static void load_help_page(void); |
6b161b31 JF |
47 | |
48 | #define ABS(x) ((x) >= 0 ? (x) : -(x)) | |
49 | #define MIN(x, y) ((x) < (y) ? (x) : (y)) | |
50 | ||
51 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) | |
52 | #define STRING_SIZE(x) (sizeof(x) - 1) | |
b76c2afc | 53 | |
2e8488b4 JF |
54 | #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */ |
55 | #define SIZEOF_CMD 1024 /* Size of command buffer. */ | |
54efb62b | 56 | #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */ |
b801d8b2 | 57 | |
82e78006 JF |
58 | /* This color name can be used to refer to the default term colors. */ |
59 | #define COLOR_DEFAULT (-1) | |
78c70acd | 60 | |
82e78006 | 61 | /* The format and size of the date column in the main view. */ |
4c6fabc2 | 62 | #define DATE_FORMAT "%Y-%m-%d %H:%M" |
6b161b31 | 63 | #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ") |
4c6fabc2 | 64 | |
10e290ee JF |
65 | #define AUTHOR_COLS 20 |
66 | ||
a28bcc22 | 67 | /* The default interval between line numbers. */ |
4a2909a7 | 68 | #define NUMBER_INTERVAL 1 |
82e78006 | 69 | |
6706b2ba JF |
70 | #define TABSIZE 8 |
71 | ||
a28bcc22 JF |
72 | #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3) |
73 | ||
8eb62770 JF |
74 | #define TIG_LS_REMOTE \ |
75 | "git ls-remote . 2>/dev/null" | |
76 | ||
77 | #define TIG_DIFF_CMD \ | |
78 | "git show --patch-with-stat --find-copies-harder -B -C %s" | |
79 | ||
80 | #define TIG_LOG_CMD \ | |
81 | "git log --cc --stat -n100 %s" | |
82 | ||
83 | #define TIG_MAIN_CMD \ | |
84 | "git log --topo-order --stat --pretty=raw %s" | |
85 | ||
86 | /* XXX: Needs to be defined to the empty string. */ | |
87 | #define TIG_HELP_CMD "" | |
88 | #define TIG_PAGER_CMD "" | |
89 | ||
8855ada4 | 90 | /* Some ascii-shorthands fitted into the ncurses namespace. */ |
a28bcc22 JF |
91 | #define KEY_TAB '\t' |
92 | #define KEY_RETURN '\r' | |
4a2909a7 JF |
93 | #define KEY_ESC 27 |
94 | ||
6706b2ba | 95 | |
c34d9c9f | 96 | struct ref { |
468876c9 JF |
97 | char *name; /* Ref name; tag or head names are shortened. */ |
98 | char id[41]; /* Commit SHA1 ID */ | |
99 | unsigned int tag:1; /* Is it a tag? */ | |
100 | unsigned int next:1; /* For ref lists: are there more refs? */ | |
c34d9c9f JF |
101 | }; |
102 | ||
ff26aa29 | 103 | static struct ref **get_refs(char *id); |
4c6fabc2 | 104 | |
660e09ad JF |
105 | struct int_map { |
106 | const char *name; | |
107 | int namelen; | |
108 | int value; | |
109 | }; | |
110 | ||
111 | static int | |
112 | set_from_int_map(struct int_map *map, size_t map_size, | |
113 | int *value, const char *name, int namelen) | |
114 | { | |
115 | ||
116 | int i; | |
117 | ||
118 | for (i = 0; i < map_size; i++) | |
119 | if (namelen == map[i].namelen && | |
120 | !strncasecmp(name, map[i].name, namelen)) { | |
121 | *value = map[i].value; | |
122 | return OK; | |
123 | } | |
124 | ||
125 | return ERR; | |
126 | } | |
127 | ||
6706b2ba | 128 | |
03a93dbb JF |
129 | /* |
130 | * String helpers | |
131 | */ | |
78c70acd | 132 | |
82e78006 | 133 | static inline void |
4685845e | 134 | string_ncopy(char *dst, const char *src, int dstlen) |
82e78006 JF |
135 | { |
136 | strncpy(dst, src, dstlen - 1); | |
137 | dst[dstlen - 1] = 0; | |
03a93dbb | 138 | |
82e78006 JF |
139 | } |
140 | ||
141 | /* Shorthand for safely copying into a fixed buffer. */ | |
142 | #define string_copy(dst, src) \ | |
143 | string_ncopy(dst, src, sizeof(dst)) | |
144 | ||
4a63c884 JF |
145 | static char * |
146 | chomp_string(char *name) | |
147 | { | |
148 | int namelen; | |
149 | ||
150 | while (isspace(*name)) | |
151 | name++; | |
152 | ||
153 | namelen = strlen(name) - 1; | |
154 | while (namelen > 0 && isspace(name[namelen])) | |
155 | name[namelen--] = 0; | |
156 | ||
157 | return name; | |
158 | } | |
159 | ||
cc2d1364 JF |
160 | static bool |
161 | string_nformat(char *buf, size_t bufsize, int *bufpos, const char *fmt, ...) | |
162 | { | |
163 | va_list args; | |
164 | int pos = bufpos ? *bufpos : 0; | |
165 | ||
166 | va_start(args, fmt); | |
167 | pos += vsnprintf(buf + pos, bufsize - pos, fmt, args); | |
168 | va_end(args); | |
169 | ||
170 | if (bufpos) | |
171 | *bufpos = pos; | |
172 | ||
173 | return pos >= bufsize ? FALSE : TRUE; | |
174 | } | |
175 | ||
176 | #define string_format(buf, fmt, args...) \ | |
177 | string_nformat(buf, sizeof(buf), NULL, fmt, args) | |
178 | ||
179 | #define string_format_from(buf, from, fmt, args...) \ | |
180 | string_nformat(buf, sizeof(buf), from, fmt, args) | |
6706b2ba | 181 | |
03a93dbb JF |
182 | /* Shell quoting |
183 | * | |
184 | * NOTE: The following is a slightly modified copy of the git project's shell | |
185 | * quoting routines found in the quote.c file. | |
186 | * | |
187 | * Help to copy the thing properly quoted for the shell safety. any single | |
188 | * quote is replaced with '\'', any exclamation point is replaced with '\!', | |
189 | * and the whole thing is enclosed in a | |
190 | * | |
191 | * E.g. | |
192 | * original sq_quote result | |
193 | * name ==> name ==> 'name' | |
194 | * a b ==> a b ==> 'a b' | |
195 | * a'b ==> a'\''b ==> 'a'\''b' | |
196 | * a!b ==> a'\!'b ==> 'a'\!'b' | |
197 | */ | |
198 | ||
199 | static size_t | |
200 | sq_quote(char buf[SIZEOF_CMD], size_t bufsize, const char *src) | |
201 | { | |
202 | char c; | |
203 | ||
a9274b95 | 204 | #define BUFPUT(x) do { if (bufsize < SIZEOF_CMD) buf[bufsize++] = (x); } while (0) |
03a93dbb JF |
205 | |
206 | BUFPUT('\''); | |
207 | while ((c = *src++)) { | |
208 | if (c == '\'' || c == '!') { | |
209 | BUFPUT('\''); | |
210 | BUFPUT('\\'); | |
211 | BUFPUT(c); | |
212 | BUFPUT('\''); | |
213 | } else { | |
214 | BUFPUT(c); | |
215 | } | |
216 | } | |
217 | BUFPUT('\''); | |
218 | ||
219 | return bufsize; | |
220 | } | |
221 | ||
82e78006 | 222 | |
24b5b3e0 JF |
223 | /* |
224 | * User requests | |
225 | */ | |
226 | ||
227 | #define REQ_INFO \ | |
228 | /* XXX: Keep the view request first and in sync with views[]. */ \ | |
229 | REQ_GROUP("View switching") \ | |
230 | REQ_(VIEW_MAIN, "Show main view"), \ | |
231 | REQ_(VIEW_DIFF, "Show diff view"), \ | |
232 | REQ_(VIEW_LOG, "Show log view"), \ | |
233 | REQ_(VIEW_HELP, "Show help page"), \ | |
234 | REQ_(VIEW_PAGER, "Show pager view"), \ | |
235 | \ | |
236 | REQ_GROUP("View manipulation") \ | |
237 | REQ_(ENTER, "Enter current line and scroll"), \ | |
238 | REQ_(NEXT, "Move to next"), \ | |
239 | REQ_(PREVIOUS, "Move to previous"), \ | |
240 | REQ_(VIEW_NEXT, "Move focus to next view"), \ | |
241 | REQ_(VIEW_CLOSE, "Close the current view"), \ | |
242 | REQ_(QUIT, "Close all views and quit"), \ | |
243 | \ | |
244 | REQ_GROUP("Cursor navigation") \ | |
245 | REQ_(MOVE_UP, "Move cursor one line up"), \ | |
246 | REQ_(MOVE_DOWN, "Move cursor one line down"), \ | |
247 | REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \ | |
248 | REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \ | |
249 | REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \ | |
250 | REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \ | |
251 | \ | |
252 | REQ_GROUP("Scrolling") \ | |
253 | REQ_(SCROLL_LINE_UP, "Scroll one line up"), \ | |
254 | REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \ | |
255 | REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \ | |
256 | REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \ | |
257 | \ | |
258 | REQ_GROUP("Misc") \ | |
259 | REQ_(PROMPT, "Bring up the prompt"), \ | |
260 | REQ_(SCREEN_UPDATE, "Update the screen"), \ | |
261 | REQ_(SCREEN_REDRAW, "Redraw the screen"), \ | |
262 | REQ_(SCREEN_RESIZE, "Resize the screen"), \ | |
263 | REQ_(SHOW_VERSION, "Show version information"), \ | |
264 | REQ_(STOP_LOADING, "Stop all loading views"), \ | |
54efb62b JF |
265 | REQ_(TOGGLE_LINENO, "Toggle line numbers"), \ |
266 | REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), | |
24b5b3e0 JF |
267 | |
268 | ||
269 | /* User action requests. */ | |
270 | enum request { | |
271 | #define REQ_GROUP(help) | |
272 | #define REQ_(req, help) REQ_##req | |
273 | ||
274 | /* Offset all requests to avoid conflicts with ncurses getch values. */ | |
275 | REQ_OFFSET = KEY_MAX + 1, | |
276 | REQ_INFO | |
277 | ||
278 | #undef REQ_GROUP | |
279 | #undef REQ_ | |
280 | }; | |
281 | ||
282 | struct request_info { | |
283 | enum request request; | |
284 | char *help; | |
285 | }; | |
286 | ||
287 | static struct request_info req_info[] = { | |
288 | #define REQ_GROUP(help) { 0, (help) }, | |
289 | #define REQ_(req, help) { REQ_##req, (help) } | |
290 | REQ_INFO | |
291 | #undef REQ_GROUP | |
292 | #undef REQ_ | |
293 | }; | |
294 | ||
8eb62770 JF |
295 | /* |
296 | * Options | |
297 | */ | |
b76c2afc | 298 | |
4b8c01a3 JF |
299 | static const char usage[] = |
300 | VERSION " (" __DATE__ ")\n" | |
301 | "\n" | |
302 | "Usage: tig [options]\n" | |
303 | " or: tig [options] [--] [git log options]\n" | |
304 | " or: tig [options] log [git log options]\n" | |
305 | " or: tig [options] diff [git diff options]\n" | |
306 | " or: tig [options] show [git show options]\n" | |
307 | " or: tig [options] < [git command output]\n" | |
308 | "\n" | |
309 | "Options:\n" | |
310 | " -l Start up in log view\n" | |
311 | " -d Start up in diff view\n" | |
312 | " -n[I], --line-number[=I] Show line numbers with given interval\n" | |
b3c965c9 | 313 | " -b[N], --tab-size[=N] Set number of spaces for tab expansion\n" |
4b8c01a3 JF |
314 | " -- Mark end of tig options\n" |
315 | " -v, --version Show version and exit\n" | |
316 | " -h, --help Show help message and exit\n"; | |
317 | ||
6706b2ba JF |
318 | /* Option and state variables. */ |
319 | static bool opt_line_number = FALSE; | |
54efb62b | 320 | static bool opt_rev_graph = TRUE; |
2e8488b4 | 321 | static int opt_num_interval = NUMBER_INTERVAL; |
6706b2ba | 322 | static int opt_tab_size = TABSIZE; |
6b161b31 | 323 | static enum request opt_request = REQ_VIEW_MAIN; |
03a93dbb | 324 | static char opt_cmd[SIZEOF_CMD] = ""; |
9989bf60 JF |
325 | static char opt_encoding[20] = ""; |
326 | static bool opt_utf8 = TRUE; | |
6908bdbd | 327 | static FILE *opt_pipe = NULL; |
b76c2afc | 328 | |
6dbf6c19 JF |
329 | enum option_type { |
330 | OPT_NONE, | |
331 | OPT_INT, | |
332 | }; | |
333 | ||
334 | static bool | |
335 | check_option(char *opt, char short_name, char *name, enum option_type type, ...) | |
336 | { | |
337 | va_list args; | |
338 | char *value = ""; | |
339 | int *number; | |
340 | ||
341 | if (opt[0] != '-') | |
342 | return FALSE; | |
343 | ||
344 | if (opt[1] == '-') { | |
345 | int namelen = strlen(name); | |
346 | ||
347 | opt += 2; | |
348 | ||
349 | if (strncmp(opt, name, namelen)) | |
350 | return FALSE; | |
351 | ||
352 | if (opt[namelen] == '=') | |
353 | value = opt + namelen + 1; | |
354 | ||
355 | } else { | |
356 | if (!short_name || opt[1] != short_name) | |
357 | return FALSE; | |
358 | value = opt + 2; | |
359 | } | |
360 | ||
361 | va_start(args, type); | |
362 | if (type == OPT_INT) { | |
363 | number = va_arg(args, int *); | |
364 | if (isdigit(*value)) | |
365 | *number = atoi(value); | |
366 | } | |
367 | va_end(args); | |
368 | ||
369 | return TRUE; | |
370 | } | |
371 | ||
b76c2afc | 372 | /* Returns the index of log or diff command or -1 to exit. */ |
8855ada4 | 373 | static bool |
b76c2afc JF |
374 | parse_options(int argc, char *argv[]) |
375 | { | |
376 | int i; | |
377 | ||
378 | for (i = 1; i < argc; i++) { | |
379 | char *opt = argv[i]; | |
380 | ||
6b161b31 | 381 | if (!strcmp(opt, "-l")) { |
4a2909a7 | 382 | opt_request = REQ_VIEW_LOG; |
6b161b31 JF |
383 | continue; |
384 | } | |
b76c2afc | 385 | |
6b161b31 | 386 | if (!strcmp(opt, "-d")) { |
4a2909a7 | 387 | opt_request = REQ_VIEW_DIFF; |
6b161b31 JF |
388 | continue; |
389 | } | |
b76c2afc | 390 | |
6dbf6c19 | 391 | if (check_option(opt, 'n', "line-number", OPT_INT, &opt_num_interval)) { |
6b161b31 JF |
392 | opt_line_number = TRUE; |
393 | continue; | |
394 | } | |
b76c2afc | 395 | |
6dbf6c19 JF |
396 | if (check_option(opt, 'b', "tab-size", OPT_INT, &opt_tab_size)) { |
397 | opt_tab_size = MIN(opt_tab_size, TABSIZE); | |
6706b2ba JF |
398 | continue; |
399 | } | |
400 | ||
6dbf6c19 | 401 | if (check_option(opt, 'v', "version", OPT_NONE)) { |
b76c2afc | 402 | printf("tig version %s\n", VERSION); |
8855ada4 | 403 | return FALSE; |
6b161b31 | 404 | } |
b76c2afc | 405 | |
6dbf6c19 | 406 | if (check_option(opt, 'h', "help", OPT_NONE)) { |
4b8c01a3 JF |
407 | printf(usage); |
408 | return FALSE; | |
409 | } | |
410 | ||
6908bdbd JF |
411 | if (!strcmp(opt, "--")) { |
412 | i++; | |
413 | break; | |
414 | } | |
03a93dbb | 415 | |
8855ada4 JF |
416 | if (!strcmp(opt, "log") || |
417 | !strcmp(opt, "diff") || | |
418 | !strcmp(opt, "show")) { | |
419 | opt_request = opt[0] == 'l' | |
420 | ? REQ_VIEW_LOG : REQ_VIEW_DIFF; | |
421 | break; | |
422 | } | |
423 | ||
03a93dbb | 424 | if (opt[0] && opt[0] != '-') |
6908bdbd | 425 | break; |
6b161b31 | 426 | |
bf174187 | 427 | die("unknown option '%s'\n\n%s", opt, usage); |
b76c2afc JF |
428 | } |
429 | ||
6908bdbd | 430 | if (!isatty(STDIN_FILENO)) { |
6908bdbd JF |
431 | opt_request = REQ_VIEW_PAGER; |
432 | opt_pipe = stdin; | |
433 | ||
434 | } else if (i < argc) { | |
435 | size_t buf_size; | |
436 | ||
6908bdbd | 437 | if (opt_request == REQ_VIEW_MAIN) |
8855ada4 JF |
438 | /* XXX: This is vulnerable to the user overriding |
439 | * options required for the main view parser. */ | |
6908bdbd JF |
440 | string_copy(opt_cmd, "git log --stat --pretty=raw"); |
441 | else | |
442 | string_copy(opt_cmd, "git"); | |
443 | buf_size = strlen(opt_cmd); | |
444 | ||
445 | while (buf_size < sizeof(opt_cmd) && i < argc) { | |
446 | opt_cmd[buf_size++] = ' '; | |
447 | buf_size = sq_quote(opt_cmd, buf_size, argv[i++]); | |
448 | } | |
449 | ||
450 | if (buf_size >= sizeof(opt_cmd)) | |
451 | die("command too long"); | |
452 | ||
453 | opt_cmd[buf_size] = 0; | |
454 | ||
455 | } | |
456 | ||
afdc35b3 JF |
457 | if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8")) |
458 | opt_utf8 = FALSE; | |
459 | ||
8855ada4 | 460 | return TRUE; |
b76c2afc JF |
461 | } |
462 | ||
463 | ||
54efb62b JF |
464 | /* |
465 | * Line-oriented content detection. | |
466 | */ | |
467 | ||
2e8488b4 | 468 | #define LINE_INFO \ |
660e09ad | 469 | LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
470 | LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
471 | LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
472 | LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \ | |
660e09ad JF |
473 | LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
474 | LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
475 | LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
476 | LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
477 | LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
478 | LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
479 | LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
480 | LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
481 | LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
482 | LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
6908bdbd | 483 | LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
8855ada4 | 484 | LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
6908bdbd JF |
485 | LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
486 | LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
8855ada4 JF |
487 | LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
488 | LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
7b99a34c | 489 | LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
490 | LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \ |
491 | LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
492 | LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
8855ada4 | 493 | LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
a28bcc22 | 494 | LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
a28bcc22 | 495 | LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
496 | LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \ |
497 | LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \ | |
498 | LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
6b161b31 JF |
499 | LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \ |
500 | LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \ | |
a28bcc22 JF |
501 | LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
502 | LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
503 | LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \ | |
c34d9c9f JF |
504 | LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
505 | LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \ | |
660e09ad | 506 | LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \ |
660e09ad | 507 | |
78c70acd | 508 | enum line_type { |
2e8488b4 JF |
509 | #define LINE(type, line, fg, bg, attr) \ |
510 | LINE_##type | |
511 | LINE_INFO | |
512 | #undef LINE | |
78c70acd JF |
513 | }; |
514 | ||
515 | struct line_info { | |
660e09ad JF |
516 | const char *name; /* Option name. */ |
517 | int namelen; /* Size of option name. */ | |
4685845e | 518 | const char *line; /* The start of line to match. */ |
2e8488b4 JF |
519 | int linelen; /* Size of string to match. */ |
520 | int fg, bg, attr; /* Color and text attributes for the lines. */ | |
78c70acd JF |
521 | }; |
522 | ||
2e8488b4 | 523 | static struct line_info line_info[] = { |
78c70acd | 524 | #define LINE(type, line, fg, bg, attr) \ |
660e09ad | 525 | { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) } |
2e8488b4 JF |
526 | LINE_INFO |
527 | #undef LINE | |
78c70acd JF |
528 | }; |
529 | ||
2e8488b4 JF |
530 | static enum line_type |
531 | get_line_type(char *line) | |
78c70acd JF |
532 | { |
533 | int linelen = strlen(line); | |
a28bcc22 | 534 | enum line_type type; |
78c70acd | 535 | |
a28bcc22 | 536 | for (type = 0; type < ARRAY_SIZE(line_info); type++) |
2e8488b4 | 537 | /* Case insensitive search matches Signed-off-by lines better. */ |
a28bcc22 JF |
538 | if (linelen >= line_info[type].linelen && |
539 | !strncasecmp(line_info[type].line, line, line_info[type].linelen)) | |
540 | return type; | |
78c70acd | 541 | |
2e8488b4 | 542 | return LINE_DEFAULT; |
78c70acd JF |
543 | } |
544 | ||
2e8488b4 | 545 | static inline int |
78c70acd JF |
546 | get_line_attr(enum line_type type) |
547 | { | |
2e8488b4 JF |
548 | assert(type < ARRAY_SIZE(line_info)); |
549 | return COLOR_PAIR(type) | line_info[type].attr; | |
78c70acd JF |
550 | } |
551 | ||
660e09ad JF |
552 | static struct line_info * |
553 | get_line_info(char *name, int namelen) | |
554 | { | |
555 | enum line_type type; | |
556 | int i; | |
557 | ||
558 | /* Diff-Header -> DIFF_HEADER */ | |
559 | for (i = 0; i < namelen; i++) { | |
560 | if (name[i] == '-') | |
561 | name[i] = '_'; | |
562 | else if (name[i] == '.') | |
563 | name[i] = '_'; | |
564 | } | |
565 | ||
566 | for (type = 0; type < ARRAY_SIZE(line_info); type++) | |
567 | if (namelen == line_info[type].namelen && | |
568 | !strncasecmp(line_info[type].name, name, namelen)) | |
569 | return &line_info[type]; | |
570 | ||
571 | return NULL; | |
572 | } | |
573 | ||
78c70acd JF |
574 | static void |
575 | init_colors(void) | |
576 | { | |
82e78006 JF |
577 | int default_bg = COLOR_BLACK; |
578 | int default_fg = COLOR_WHITE; | |
a28bcc22 | 579 | enum line_type type; |
78c70acd JF |
580 | |
581 | start_color(); | |
582 | ||
583 | if (use_default_colors() != ERR) { | |
82e78006 JF |
584 | default_bg = -1; |
585 | default_fg = -1; | |
78c70acd JF |
586 | } |
587 | ||
a28bcc22 JF |
588 | for (type = 0; type < ARRAY_SIZE(line_info); type++) { |
589 | struct line_info *info = &line_info[type]; | |
82e78006 JF |
590 | int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg; |
591 | int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg; | |
78c70acd | 592 | |
a28bcc22 | 593 | init_pair(type, fg, bg); |
78c70acd JF |
594 | } |
595 | } | |
596 | ||
fe7233c3 JF |
597 | struct line { |
598 | enum line_type type; | |
599 | void *data; /* User data */ | |
600 | }; | |
601 | ||
78c70acd | 602 | |
1899507c JF |
603 | /* |
604 | * User config file handling. | |
605 | */ | |
606 | ||
5dc795f2 JF |
607 | static struct int_map color_map[] = { |
608 | #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name } | |
609 | COLOR_MAP(DEFAULT), | |
610 | COLOR_MAP(BLACK), | |
611 | COLOR_MAP(BLUE), | |
612 | COLOR_MAP(CYAN), | |
613 | COLOR_MAP(GREEN), | |
614 | COLOR_MAP(MAGENTA), | |
615 | COLOR_MAP(RED), | |
616 | COLOR_MAP(WHITE), | |
617 | COLOR_MAP(YELLOW), | |
618 | }; | |
619 | ||
660e09ad JF |
620 | #define set_color(color, name, namelen) \ |
621 | set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, namelen) | |
622 | ||
5dc795f2 JF |
623 | static struct int_map attr_map[] = { |
624 | #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name } | |
625 | ATTR_MAP(NORMAL), | |
626 | ATTR_MAP(BLINK), | |
627 | ATTR_MAP(BOLD), | |
628 | ATTR_MAP(DIM), | |
629 | ATTR_MAP(REVERSE), | |
630 | ATTR_MAP(STANDOUT), | |
631 | ATTR_MAP(UNDERLINE), | |
632 | }; | |
633 | ||
660e09ad JF |
634 | #define set_attribute(attr, name, namelen) \ |
635 | set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, namelen) | |
636 | ||
3c3801c2 JF |
637 | static int config_lineno; |
638 | static bool config_errors; | |
639 | static char *config_msg; | |
640 | ||
660e09ad | 641 | static int |
3c3801c2 | 642 | set_option(char *opt, int optlen, char *value, int valuelen) |
660e09ad | 643 | { |
660e09ad JF |
644 | /* Reads: "color" object fgcolor bgcolor [attr] */ |
645 | if (!strcmp(opt, "color")) { | |
646 | struct line_info *info; | |
647 | ||
648 | value = chomp_string(value); | |
649 | valuelen = strcspn(value, " \t"); | |
650 | info = get_line_info(value, valuelen); | |
3c3801c2 JF |
651 | if (!info) { |
652 | config_msg = "Unknown color name"; | |
660e09ad | 653 | return ERR; |
3c3801c2 | 654 | } |
660e09ad JF |
655 | |
656 | value = chomp_string(value + valuelen); | |
657 | valuelen = strcspn(value, " \t"); | |
3c3801c2 JF |
658 | if (set_color(&info->fg, value, valuelen) == ERR) { |
659 | config_msg = "Unknown color"; | |
660e09ad | 660 | return ERR; |
3c3801c2 | 661 | } |
660e09ad JF |
662 | |
663 | value = chomp_string(value + valuelen); | |
664 | valuelen = strcspn(value, " \t"); | |
3c3801c2 JF |
665 | if (set_color(&info->bg, value, valuelen) == ERR) { |
666 | config_msg = "Unknown color"; | |
660e09ad | 667 | return ERR; |
3c3801c2 | 668 | } |
660e09ad JF |
669 | |
670 | value = chomp_string(value + valuelen); | |
671 | if (*value && | |
3c3801c2 JF |
672 | set_attribute(&info->attr, value, strlen(value)) == ERR) { |
673 | config_msg = "Unknown attribute"; | |
660e09ad | 674 | return ERR; |
3c3801c2 | 675 | } |
660e09ad JF |
676 | |
677 | return OK; | |
678 | } | |
679 | ||
680 | return ERR; | |
681 | } | |
682 | ||
683 | static int | |
3c3801c2 JF |
684 | read_option(char *opt, int optlen, char *value, int valuelen) |
685 | { | |
686 | config_lineno++; | |
687 | config_msg = "Internal error"; | |
688 | ||
689 | optlen = strcspn(opt, "#;"); | |
690 | if (optlen == 0) { | |
691 | /* The whole line is a commend or empty. */ | |
692 | return OK; | |
693 | ||
694 | } else if (opt[optlen] != 0) { | |
695 | /* Part of the option name is a comment, so the value part | |
696 | * should be ignored. */ | |
697 | valuelen = 0; | |
698 | opt[optlen] = value[valuelen] = 0; | |
699 | } else { | |
700 | /* Else look for comment endings in the value. */ | |
701 | valuelen = strcspn(value, "#;"); | |
702 | value[valuelen] = 0; | |
703 | } | |
704 | ||
705 | if (set_option(opt, optlen, value, valuelen) == ERR) { | |
706 | fprintf(stderr, "Error on line %d, near '%.*s' option: %s\n", | |
707 | config_lineno, optlen, opt, config_msg); | |
708 | config_errors = TRUE; | |
709 | } | |
710 | ||
711 | /* Always keep going if errors are encountered. */ | |
712 | return OK; | |
713 | } | |
714 | ||
715 | static int | |
660e09ad JF |
716 | load_options(void) |
717 | { | |
718 | char *home = getenv("HOME"); | |
719 | char buf[1024]; | |
720 | FILE *file; | |
721 | ||
3c3801c2 JF |
722 | config_lineno = 0; |
723 | config_errors = FALSE; | |
724 | ||
cc2d1364 | 725 | if (!home || !string_format(buf, "%s/.tigrc", home)) |
660e09ad JF |
726 | return ERR; |
727 | ||
728 | /* It's ok that the file doesn't exist. */ | |
729 | file = fopen(buf, "r"); | |
730 | if (!file) | |
731 | return OK; | |
732 | ||
3c3801c2 JF |
733 | if (read_properties(file, " \t", read_option) == ERR || |
734 | config_errors == TRUE) | |
735 | fprintf(stderr, "Errors while loading %s.\n", buf); | |
736 | ||
737 | return OK; | |
660e09ad JF |
738 | } |
739 | ||
740 | ||
d839253b | 741 | /* |
468876c9 | 742 | * The viewer |
d839253b | 743 | */ |
c2124ccd JF |
744 | |
745 | struct view; | |
fe7233c3 | 746 | struct view_ops; |
c2124ccd JF |
747 | |
748 | /* The display array of active views and the index of the current view. */ | |
749 | static struct view *display[2]; | |
750 | static unsigned int current_view; | |
751 | ||
752 | #define foreach_view(view, i) \ | |
753 | for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++) | |
754 | ||
9f41488f | 755 | #define displayed_views() (display[1] != NULL ? 2 : 1) |
c2124ccd | 756 | |
d839253b | 757 | /* Current head and commit ID */ |
c2124ccd JF |
758 | static char ref_commit[SIZEOF_REF] = "HEAD"; |
759 | static char ref_head[SIZEOF_REF] = "HEAD"; | |
760 | ||
b801d8b2 | 761 | struct view { |
03a93dbb | 762 | const char *name; /* View name */ |
4685845e TH |
763 | const char *cmd_fmt; /* Default command line format */ |
764 | const char *cmd_env; /* Command line set via environment */ | |
765 | const char *id; /* Points to either of ref_{head,commit} */ | |
6b161b31 | 766 | |
fe7233c3 | 767 | struct view_ops *ops; /* View operations */ |
22f66b0a | 768 | |
03a93dbb | 769 | char cmd[SIZEOF_CMD]; /* Command buffer */ |
49f2b43f JF |
770 | char ref[SIZEOF_REF]; /* Hovered commit reference */ |
771 | char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */ | |
2e8488b4 | 772 | |
8855ada4 JF |
773 | int height, width; /* The width and height of the main window */ |
774 | WINDOW *win; /* The main window */ | |
775 | WINDOW *title; /* The title window living below the main window */ | |
b801d8b2 JF |
776 | |
777 | /* Navigation */ | |
778 | unsigned long offset; /* Offset of the window top */ | |
779 | unsigned long lineno; /* Current line number */ | |
780 | ||
f6da0b66 JF |
781 | /* If non-NULL, points to the view that opened this view. If this view |
782 | * is closed tig will switch back to the parent view. */ | |
783 | struct view *parent; | |
784 | ||
b801d8b2 JF |
785 | /* Buffering */ |
786 | unsigned long lines; /* Total number of lines */ | |
fe7233c3 | 787 | struct line *line; /* Line index */ |
e2c01617 | 788 | unsigned long line_size;/* Total number of allocated lines */ |
8855ada4 | 789 | unsigned int digits; /* Number of digits in the lines member. */ |
b801d8b2 JF |
790 | |
791 | /* Loading */ | |
792 | FILE *pipe; | |
2e8488b4 | 793 | time_t start_time; |
b801d8b2 JF |
794 | }; |
795 | ||
fe7233c3 JF |
796 | struct view_ops { |
797 | /* What type of content being displayed. Used in the title bar. */ | |
798 | const char *type; | |
799 | /* Draw one line; @lineno must be < view->height. */ | |
800 | bool (*draw)(struct view *view, struct line *line, unsigned int lineno); | |
801 | /* Read one line; updates view->line. */ | |
701e4f5d | 802 | bool (*read)(struct view *view, char *data); |
fe7233c3 JF |
803 | /* Depending on view, change display based on current line. */ |
804 | bool (*enter)(struct view *view, struct line *line); | |
805 | }; | |
806 | ||
6b161b31 JF |
807 | static struct view_ops pager_ops; |
808 | static struct view_ops main_ops; | |
a28bcc22 | 809 | |
95d7ddcd JF |
810 | #define VIEW_STR(name, cmd, env, ref, ops) \ |
811 | { name, cmd, #env, ref, ops } | |
1ba2ae4b | 812 | |
95d7ddcd JF |
813 | #define VIEW_(id, name, ops, ref) \ |
814 | VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops) | |
1ba2ae4b | 815 | |
c2124ccd | 816 | |
b801d8b2 | 817 | static struct view views[] = { |
95d7ddcd JF |
818 | VIEW_(MAIN, "main", &main_ops, ref_head), |
819 | VIEW_(DIFF, "diff", &pager_ops, ref_commit), | |
820 | VIEW_(LOG, "log", &pager_ops, ref_head), | |
821 | VIEW_(HELP, "help", &pager_ops, "static"), | |
822 | VIEW_(PAGER, "pager", &pager_ops, "static"), | |
b801d8b2 JF |
823 | }; |
824 | ||
a28bcc22 JF |
825 | #define VIEW(req) (&views[(req) - REQ_OFFSET - 1]) |
826 | ||
4c6fabc2 | 827 | |
fe7233c3 JF |
828 | static bool |
829 | draw_view_line(struct view *view, unsigned int lineno) | |
830 | { | |
831 | if (view->offset + lineno >= view->lines) | |
832 | return FALSE; | |
833 | ||
834 | return view->ops->draw(view, &view->line[view->offset + lineno], lineno); | |
835 | } | |
836 | ||
b801d8b2 | 837 | static void |
82e78006 | 838 | redraw_view_from(struct view *view, int lineno) |
b801d8b2 | 839 | { |
82e78006 | 840 | assert(0 <= lineno && lineno < view->height); |
b801d8b2 | 841 | |
82e78006 | 842 | for (; lineno < view->height; lineno++) { |
fe7233c3 | 843 | if (!draw_view_line(view, lineno)) |
fd85fef1 | 844 | break; |
b801d8b2 JF |
845 | } |
846 | ||
847 | redrawwin(view->win); | |
848 | wrefresh(view->win); | |
849 | } | |
850 | ||
b76c2afc | 851 | static void |
82e78006 JF |
852 | redraw_view(struct view *view) |
853 | { | |
854 | wclear(view->win); | |
855 | redraw_view_from(view, 0); | |
856 | } | |
857 | ||
c2124ccd | 858 | |
6b161b31 | 859 | static void |
81030ec8 JF |
860 | update_view_title(struct view *view) |
861 | { | |
862 | if (view == display[current_view]) | |
863 | wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS)); | |
864 | else | |
865 | wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR)); | |
866 | ||
867 | werase(view->title); | |
868 | wmove(view->title, 0, 0); | |
869 | ||
81030ec8 JF |
870 | if (*view->ref) |
871 | wprintw(view->title, "[%s] %s", view->name, view->ref); | |
872 | else | |
873 | wprintw(view->title, "[%s]", view->name); | |
874 | ||
c19f8017 | 875 | if (view->lines || view->pipe) { |
6d9c07af | 876 | unsigned int view_lines = view->offset + view->height; |
c19f8017 | 877 | unsigned int lines = view->lines |
6d9c07af | 878 | ? MIN(view_lines, view->lines) * 100 / view->lines |
c19f8017 JF |
879 | : 0; |
880 | ||
81030ec8 JF |
881 | wprintw(view->title, " - %s %d of %d (%d%%)", |
882 | view->ops->type, | |
883 | view->lineno + 1, | |
884 | view->lines, | |
c19f8017 | 885 | lines); |
81030ec8 JF |
886 | } |
887 | ||
f97f4012 JF |
888 | if (view->pipe) { |
889 | time_t secs = time(NULL) - view->start_time; | |
890 | ||
891 | /* Three git seconds are a long time ... */ | |
892 | if (secs > 2) | |
893 | wprintw(view->title, " %lds", secs); | |
894 | } | |
895 | ||
976447f8 | 896 | wmove(view->title, 0, view->width - 1); |
81030ec8 JF |
897 | wrefresh(view->title); |
898 | } | |
899 | ||
900 | static void | |
6b161b31 | 901 | resize_display(void) |
b76c2afc | 902 | { |
03a93dbb | 903 | int offset, i; |
6b161b31 JF |
904 | struct view *base = display[0]; |
905 | struct view *view = display[1] ? display[1] : display[0]; | |
b76c2afc | 906 | |
6b161b31 | 907 | /* Setup window dimensions */ |
b76c2afc | 908 | |
03a93dbb | 909 | getmaxyx(stdscr, base->height, base->width); |
b76c2afc | 910 | |
6b161b31 | 911 | /* Make room for the status window. */ |
03a93dbb | 912 | base->height -= 1; |
6b161b31 JF |
913 | |
914 | if (view != base) { | |
03a93dbb JF |
915 | /* Horizontal split. */ |
916 | view->width = base->width; | |
6b161b31 JF |
917 | view->height = SCALE_SPLIT_VIEW(base->height); |
918 | base->height -= view->height; | |
919 | ||
920 | /* Make room for the title bar. */ | |
921 | view->height -= 1; | |
922 | } | |
923 | ||
924 | /* Make room for the title bar. */ | |
925 | base->height -= 1; | |
926 | ||
927 | offset = 0; | |
928 | ||
929 | foreach_view (view, i) { | |
b76c2afc | 930 | if (!view->win) { |
c19f8017 | 931 | view->win = newwin(view->height, 0, offset, 0); |
6b161b31 JF |
932 | if (!view->win) |
933 | die("Failed to create %s view", view->name); | |
934 | ||
935 | scrollok(view->win, TRUE); | |
936 | ||
937 | view->title = newwin(1, 0, offset + view->height, 0); | |
938 | if (!view->title) | |
939 | die("Failed to create title window"); | |
940 | ||
941 | } else { | |
c19f8017 | 942 | wresize(view->win, view->height, view->width); |
6b161b31 JF |
943 | mvwin(view->win, offset, 0); |
944 | mvwin(view->title, offset + view->height, 0); | |
a28bcc22 | 945 | } |
a28bcc22 | 946 | |
6b161b31 | 947 | offset += view->height + 1; |
b76c2afc | 948 | } |
6b161b31 | 949 | } |
b76c2afc | 950 | |
6b161b31 | 951 | static void |
20bb5e18 JF |
952 | redraw_display(void) |
953 | { | |
954 | struct view *view; | |
955 | int i; | |
956 | ||
957 | foreach_view (view, i) { | |
958 | redraw_view(view); | |
959 | update_view_title(view); | |
960 | } | |
961 | } | |
962 | ||
85af6284 JF |
963 | static void |
964 | update_display_cursor(void) | |
965 | { | |
966 | struct view *view = display[current_view]; | |
967 | ||
968 | /* Move the cursor to the right-most column of the cursor line. | |
969 | * | |
970 | * XXX: This could turn out to be a bit expensive, but it ensures that | |
971 | * the cursor does not jump around. */ | |
972 | if (view->lines) { | |
973 | wmove(view->win, view->lineno - view->offset, view->width - 1); | |
974 | wrefresh(view->win); | |
975 | } | |
976 | } | |
20bb5e18 | 977 | |
2e8488b4 JF |
978 | /* |
979 | * Navigation | |
980 | */ | |
981 | ||
4a2909a7 | 982 | /* Scrolling backend */ |
b801d8b2 | 983 | static void |
b3a54cba | 984 | do_scroll_view(struct view *view, int lines, bool redraw) |
b801d8b2 | 985 | { |
fd85fef1 JF |
986 | /* The rendering expects the new offset. */ |
987 | view->offset += lines; | |
988 | ||
989 | assert(0 <= view->offset && view->offset < view->lines); | |
990 | assert(lines); | |
b801d8b2 | 991 | |
82e78006 | 992 | /* Redraw the whole screen if scrolling is pointless. */ |
4c6fabc2 | 993 | if (view->height < ABS(lines)) { |
b76c2afc JF |
994 | redraw_view(view); |
995 | ||
996 | } else { | |
22f66b0a | 997 | int line = lines > 0 ? view->height - lines : 0; |
82e78006 | 998 | int end = line + ABS(lines); |
fd85fef1 JF |
999 | |
1000 | wscrl(view->win, lines); | |
1001 | ||
22f66b0a | 1002 | for (; line < end; line++) { |
fe7233c3 | 1003 | if (!draw_view_line(view, line)) |
fd85fef1 JF |
1004 | break; |
1005 | } | |
1006 | } | |
1007 | ||
1008 | /* Move current line into the view. */ | |
1009 | if (view->lineno < view->offset) { | |
1010 | view->lineno = view->offset; | |
fe7233c3 | 1011 | draw_view_line(view, 0); |
fd85fef1 JF |
1012 | |
1013 | } else if (view->lineno >= view->offset + view->height) { | |
6706b2ba JF |
1014 | if (view->lineno == view->offset + view->height) { |
1015 | /* Clear the hidden line so it doesn't show if the view | |
1016 | * is scrolled up. */ | |
1017 | wmove(view->win, view->height, 0); | |
1018 | wclrtoeol(view->win); | |
1019 | } | |
fd85fef1 | 1020 | view->lineno = view->offset + view->height - 1; |
fe7233c3 | 1021 | draw_view_line(view, view->lineno - view->offset); |
fd85fef1 JF |
1022 | } |
1023 | ||
4c6fabc2 | 1024 | assert(view->offset <= view->lineno && view->lineno < view->lines); |
fd85fef1 | 1025 | |
b3a54cba JF |
1026 | if (!redraw) |
1027 | return; | |
1028 | ||
fd85fef1 JF |
1029 | redrawwin(view->win); |
1030 | wrefresh(view->win); | |
9d3f5834 | 1031 | report(""); |
fd85fef1 | 1032 | } |
78c70acd | 1033 | |
4a2909a7 | 1034 | /* Scroll frontend */ |
fd85fef1 | 1035 | static void |
6b161b31 | 1036 | scroll_view(struct view *view, enum request request) |
fd85fef1 JF |
1037 | { |
1038 | int lines = 1; | |
b801d8b2 JF |
1039 | |
1040 | switch (request) { | |
4a2909a7 | 1041 | case REQ_SCROLL_PAGE_DOWN: |
fd85fef1 | 1042 | lines = view->height; |
4a2909a7 | 1043 | case REQ_SCROLL_LINE_DOWN: |
b801d8b2 | 1044 | if (view->offset + lines > view->lines) |
bde3653a | 1045 | lines = view->lines - view->offset; |
b801d8b2 | 1046 | |
fd85fef1 | 1047 | if (lines == 0 || view->offset + view->height >= view->lines) { |
eb98559e | 1048 | report("Cannot scroll beyond the last line"); |
b801d8b2 JF |
1049 | return; |
1050 | } | |
1051 | break; | |
1052 | ||
4a2909a7 | 1053 | case REQ_SCROLL_PAGE_UP: |
fd85fef1 | 1054 | lines = view->height; |
4a2909a7 | 1055 | case REQ_SCROLL_LINE_UP: |
b801d8b2 JF |
1056 | if (lines > view->offset) |
1057 | lines = view->offset; | |
1058 | ||
1059 | if (lines == 0) { | |
eb98559e | 1060 | report("Cannot scroll beyond the first line"); |
b801d8b2 JF |
1061 | return; |
1062 | } | |
1063 | ||
fd85fef1 | 1064 | lines = -lines; |
b801d8b2 | 1065 | break; |
03a93dbb | 1066 | |
6b161b31 JF |
1067 | default: |
1068 | die("request %d not handled in switch", request); | |
b801d8b2 JF |
1069 | } |
1070 | ||
b3a54cba | 1071 | do_scroll_view(view, lines, TRUE); |
fd85fef1 | 1072 | } |
b801d8b2 | 1073 | |
4a2909a7 | 1074 | /* Cursor moving */ |
fd85fef1 | 1075 | static void |
b3a54cba | 1076 | move_view(struct view *view, enum request request, bool redraw) |
fd85fef1 JF |
1077 | { |
1078 | int steps; | |
b801d8b2 | 1079 | |
fd85fef1 | 1080 | switch (request) { |
4a2909a7 | 1081 | case REQ_MOVE_FIRST_LINE: |
78c70acd JF |
1082 | steps = -view->lineno; |
1083 | break; | |
1084 | ||
4a2909a7 | 1085 | case REQ_MOVE_LAST_LINE: |
78c70acd JF |
1086 | steps = view->lines - view->lineno - 1; |
1087 | break; | |
1088 | ||
4a2909a7 | 1089 | case REQ_MOVE_PAGE_UP: |
78c70acd JF |
1090 | steps = view->height > view->lineno |
1091 | ? -view->lineno : -view->height; | |
1092 | break; | |
1093 | ||
4a2909a7 | 1094 | case REQ_MOVE_PAGE_DOWN: |
78c70acd JF |
1095 | steps = view->lineno + view->height >= view->lines |
1096 | ? view->lines - view->lineno - 1 : view->height; | |
1097 | break; | |
1098 | ||
4a2909a7 | 1099 | case REQ_MOVE_UP: |
fd85fef1 JF |
1100 | steps = -1; |
1101 | break; | |
b801d8b2 | 1102 | |
4a2909a7 | 1103 | case REQ_MOVE_DOWN: |
fd85fef1 JF |
1104 | steps = 1; |
1105 | break; | |
6b161b31 JF |
1106 | |
1107 | default: | |
1108 | die("request %d not handled in switch", request); | |
78c70acd | 1109 | } |
b801d8b2 | 1110 | |
4c6fabc2 | 1111 | if (steps <= 0 && view->lineno == 0) { |
eb98559e | 1112 | report("Cannot move beyond the first line"); |
78c70acd | 1113 | return; |
b801d8b2 | 1114 | |
6908bdbd | 1115 | } else if (steps >= 0 && view->lineno + 1 >= view->lines) { |
eb98559e | 1116 | report("Cannot move beyond the last line"); |
78c70acd | 1117 | return; |
fd85fef1 JF |
1118 | } |
1119 | ||
4c6fabc2 | 1120 | /* Move the current line */ |
fd85fef1 | 1121 | view->lineno += steps; |
4c6fabc2 JF |
1122 | assert(0 <= view->lineno && view->lineno < view->lines); |
1123 | ||
1124 | /* Repaint the old "current" line if we be scrolling */ | |
2e8488b4 JF |
1125 | if (ABS(steps) < view->height) { |
1126 | int prev_lineno = view->lineno - steps - view->offset; | |
1127 | ||
1128 | wmove(view->win, prev_lineno, 0); | |
1129 | wclrtoeol(view->win); | |
fe7233c3 | 1130 | draw_view_line(view, prev_lineno); |
2e8488b4 | 1131 | } |
fd85fef1 | 1132 | |
4c6fabc2 | 1133 | /* Check whether the view needs to be scrolled */ |
fd85fef1 JF |
1134 | if (view->lineno < view->offset || |
1135 | view->lineno >= view->offset + view->height) { | |
1136 | if (steps < 0 && -steps > view->offset) { | |
1137 | steps = -view->offset; | |
b76c2afc JF |
1138 | |
1139 | } else if (steps > 0) { | |
1140 | if (view->lineno == view->lines - 1 && | |
1141 | view->lines > view->height) { | |
1142 | steps = view->lines - view->offset - 1; | |
1143 | if (steps >= view->height) | |
1144 | steps -= view->height - 1; | |
1145 | } | |
b801d8b2 | 1146 | } |
78c70acd | 1147 | |
b3a54cba | 1148 | do_scroll_view(view, steps, redraw); |
fd85fef1 | 1149 | return; |
b801d8b2 JF |
1150 | } |
1151 | ||
4c6fabc2 | 1152 | /* Draw the current line */ |
fe7233c3 | 1153 | draw_view_line(view, view->lineno - view->offset); |
fd85fef1 | 1154 | |
b3a54cba JF |
1155 | if (!redraw) |
1156 | return; | |
1157 | ||
b801d8b2 JF |
1158 | redrawwin(view->win); |
1159 | wrefresh(view->win); | |
9d3f5834 | 1160 | report(""); |
b801d8b2 JF |
1161 | } |
1162 | ||
b801d8b2 | 1163 | |
2e8488b4 JF |
1164 | /* |
1165 | * Incremental updating | |
1166 | */ | |
b801d8b2 | 1167 | |
199d1288 JF |
1168 | static void |
1169 | end_update(struct view *view) | |
1170 | { | |
1171 | if (!view->pipe) | |
1172 | return; | |
1173 | set_nonblocking_input(FALSE); | |
1174 | if (view->pipe == stdin) | |
1175 | fclose(view->pipe); | |
1176 | else | |
1177 | pclose(view->pipe); | |
1178 | view->pipe = NULL; | |
1179 | } | |
1180 | ||
03a93dbb | 1181 | static bool |
b801d8b2 JF |
1182 | begin_update(struct view *view) |
1183 | { | |
4685845e | 1184 | const char *id = view->id; |
fd85fef1 | 1185 | |
199d1288 JF |
1186 | if (view->pipe) |
1187 | end_update(view); | |
1188 | ||
03a93dbb JF |
1189 | if (opt_cmd[0]) { |
1190 | string_copy(view->cmd, opt_cmd); | |
1191 | opt_cmd[0] = 0; | |
8855ada4 JF |
1192 | /* When running random commands, the view ref could have become |
1193 | * invalid so clear it. */ | |
1194 | view->ref[0] = 0; | |
03a93dbb | 1195 | } else { |
4685845e | 1196 | const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt; |
1ba2ae4b | 1197 | |
cc2d1364 | 1198 | if (!string_format(view->cmd, format, id, id, id, id, id)) |
03a93dbb JF |
1199 | return FALSE; |
1200 | } | |
b801d8b2 | 1201 | |
6908bdbd JF |
1202 | /* Special case for the pager view. */ |
1203 | if (opt_pipe) { | |
1204 | view->pipe = opt_pipe; | |
1205 | opt_pipe = NULL; | |
1206 | } else { | |
1207 | view->pipe = popen(view->cmd, "r"); | |
1208 | } | |
1209 | ||
2e8488b4 JF |
1210 | if (!view->pipe) |
1211 | return FALSE; | |
b801d8b2 | 1212 | |
6b161b31 | 1213 | set_nonblocking_input(TRUE); |
b801d8b2 JF |
1214 | |
1215 | view->offset = 0; | |
1216 | view->lines = 0; | |
1217 | view->lineno = 0; | |
49f2b43f | 1218 | string_copy(view->vid, id); |
b801d8b2 | 1219 | |
2e8488b4 JF |
1220 | if (view->line) { |
1221 | int i; | |
1222 | ||
1223 | for (i = 0; i < view->lines; i++) | |
fe7233c3 JF |
1224 | if (view->line[i].data) |
1225 | free(view->line[i].data); | |
2e8488b4 JF |
1226 | |
1227 | free(view->line); | |
1228 | view->line = NULL; | |
1229 | } | |
1230 | ||
1231 | view->start_time = time(NULL); | |
1232 | ||
b801d8b2 JF |
1233 | return TRUE; |
1234 | } | |
1235 | ||
e2c01617 JF |
1236 | static struct line * |
1237 | realloc_lines(struct view *view, size_t line_size) | |
1238 | { | |
1239 | struct line *tmp = realloc(view->line, sizeof(*view->line) * line_size); | |
1240 | ||
1241 | if (!tmp) | |
1242 | return NULL; | |
1243 | ||
1244 | view->line = tmp; | |
1245 | view->line_size = line_size; | |
1246 | return view->line; | |
1247 | } | |
1248 | ||
03a93dbb | 1249 | static bool |
b801d8b2 JF |
1250 | update_view(struct view *view) |
1251 | { | |
1252 | char buffer[BUFSIZ]; | |
1253 | char *line; | |
82e78006 JF |
1254 | /* The number of lines to read. If too low it will cause too much |
1255 | * redrawing (and possible flickering), if too high responsiveness | |
1256 | * will suffer. */ | |
8855ada4 | 1257 | unsigned long lines = view->height; |
82e78006 | 1258 | int redraw_from = -1; |
b801d8b2 JF |
1259 | |
1260 | if (!view->pipe) | |
1261 | return TRUE; | |
1262 | ||
82e78006 JF |
1263 | /* Only redraw if lines are visible. */ |
1264 | if (view->offset + view->height >= view->lines) | |
1265 | redraw_from = view->lines - view->offset; | |
b801d8b2 | 1266 | |
e2c01617 | 1267 | if (!realloc_lines(view, view->lines + lines)) |
b801d8b2 JF |
1268 | goto alloc_error; |
1269 | ||
b801d8b2 | 1270 | while ((line = fgets(buffer, sizeof(buffer), view->pipe))) { |
c34d9c9f | 1271 | int linelen = strlen(line); |
b801d8b2 | 1272 | |
b801d8b2 JF |
1273 | if (linelen) |
1274 | line[linelen - 1] = 0; | |
1275 | ||
701e4f5d | 1276 | if (!view->ops->read(view, line)) |
b801d8b2 | 1277 | goto alloc_error; |
fd85fef1 JF |
1278 | |
1279 | if (lines-- == 1) | |
1280 | break; | |
b801d8b2 JF |
1281 | } |
1282 | ||
8855ada4 JF |
1283 | { |
1284 | int digits; | |
1285 | ||
1286 | lines = view->lines; | |
1287 | for (digits = 0; lines; digits++) | |
1288 | lines /= 10; | |
1289 | ||
1290 | /* Keep the displayed view in sync with line number scaling. */ | |
1291 | if (digits != view->digits) { | |
1292 | view->digits = digits; | |
1293 | redraw_from = 0; | |
1294 | } | |
1295 | } | |
1296 | ||
82e78006 JF |
1297 | if (redraw_from >= 0) { |
1298 | /* If this is an incremental update, redraw the previous line | |
a28bcc22 JF |
1299 | * since for commits some members could have changed when |
1300 | * loading the main view. */ | |
82e78006 JF |
1301 | if (redraw_from > 0) |
1302 | redraw_from--; | |
1303 | ||
1304 | /* Incrementally draw avoids flickering. */ | |
1305 | redraw_view_from(view, redraw_from); | |
4c6fabc2 | 1306 | } |
b801d8b2 | 1307 | |
eb98559e JF |
1308 | /* Update the title _after_ the redraw so that if the redraw picks up a |
1309 | * commit reference in view->ref it'll be available here. */ | |
1310 | update_view_title(view); | |
1311 | ||
b801d8b2 | 1312 | if (ferror(view->pipe)) { |
03a93dbb | 1313 | report("Failed to read: %s", strerror(errno)); |
b801d8b2 JF |
1314 | goto end; |
1315 | ||
1316 | } else if (feof(view->pipe)) { | |
f97f4012 | 1317 | report(""); |
b801d8b2 JF |
1318 | goto end; |
1319 | } | |
1320 | ||
1321 | return TRUE; | |
1322 | ||
1323 | alloc_error: | |
2e8488b4 | 1324 | report("Allocation failure"); |
b801d8b2 JF |
1325 | |
1326 | end: | |
1327 | end_update(view); | |
1328 | return FALSE; | |
1329 | } | |
1330 | ||
49f2b43f JF |
1331 | enum open_flags { |
1332 | OPEN_DEFAULT = 0, /* Use default view switching. */ | |
1333 | OPEN_SPLIT = 1, /* Split current view. */ | |
1334 | OPEN_BACKGROUNDED = 2, /* Backgrounded. */ | |
1335 | OPEN_RELOAD = 4, /* Reload view even if it is the current. */ | |
1336 | }; | |
1337 | ||
6b161b31 | 1338 | static void |
49f2b43f | 1339 | open_view(struct view *prev, enum request request, enum open_flags flags) |
b801d8b2 | 1340 | { |
49f2b43f JF |
1341 | bool backgrounded = !!(flags & OPEN_BACKGROUNDED); |
1342 | bool split = !!(flags & OPEN_SPLIT); | |
1343 | bool reload = !!(flags & OPEN_RELOAD); | |
a28bcc22 | 1344 | struct view *view = VIEW(request); |
9f41488f | 1345 | int nviews = displayed_views(); |
6e950a52 | 1346 | struct view *base_view = display[0]; |
b801d8b2 | 1347 | |
49f2b43f | 1348 | if (view == prev && nviews == 1 && !reload) { |
6b161b31 JF |
1349 | report("Already in %s view", view->name); |
1350 | return; | |
1351 | } | |
b801d8b2 | 1352 | |
2509b112 JF |
1353 | if (view == VIEW(REQ_VIEW_HELP)) { |
1354 | load_help_page(); | |
1355 | ||
1356 | } else if ((reload || strcmp(view->vid, view->id)) && | |
1357 | !begin_update(view)) { | |
6b161b31 JF |
1358 | report("Failed to load %s view", view->name); |
1359 | return; | |
1360 | } | |
a28bcc22 | 1361 | |
6b161b31 | 1362 | if (split) { |
8d741c06 | 1363 | display[1] = view; |
6b161b31 | 1364 | if (!backgrounded) |
8d741c06 | 1365 | current_view = 1; |
6b161b31 JF |
1366 | } else { |
1367 | /* Maximize the current view. */ | |
1368 | memset(display, 0, sizeof(display)); | |
1369 | current_view = 0; | |
1370 | display[current_view] = view; | |
a28bcc22 | 1371 | } |
b801d8b2 | 1372 | |
6e950a52 JF |
1373 | /* Resize the view when switching between split- and full-screen, |
1374 | * or when switching between two different full-screen views. */ | |
1375 | if (nviews != displayed_views() || | |
1376 | (nviews == 1 && base_view != display[0])) | |
a006db63 | 1377 | resize_display(); |
b801d8b2 | 1378 | |
a8891802 | 1379 | if (split && prev->lineno - prev->offset >= prev->height) { |
03a93dbb | 1380 | /* Take the title line into account. */ |
eb98559e | 1381 | int lines = prev->lineno - prev->offset - prev->height + 1; |
03a93dbb JF |
1382 | |
1383 | /* Scroll the view that was split if the current line is | |
1384 | * outside the new limited view. */ | |
b3a54cba | 1385 | do_scroll_view(prev, lines, TRUE); |
03a93dbb JF |
1386 | } |
1387 | ||
6b161b31 | 1388 | if (prev && view != prev) { |
9b995f0c | 1389 | if (split && !backgrounded) { |
f0b3ab80 JF |
1390 | /* "Blur" the previous view. */ |
1391 | update_view_title(prev); | |
9f396969 | 1392 | } |
f0b3ab80 | 1393 | |
f6da0b66 | 1394 | view->parent = prev; |
b801d8b2 JF |
1395 | } |
1396 | ||
9f396969 | 1397 | if (view->pipe && view->lines == 0) { |
03a93dbb JF |
1398 | /* Clear the old view and let the incremental updating refill |
1399 | * the screen. */ | |
1400 | wclear(view->win); | |
f97f4012 | 1401 | report(""); |
03a93dbb JF |
1402 | } else { |
1403 | redraw_view(view); | |
24b5b3e0 | 1404 | report(""); |
03a93dbb | 1405 | } |
6706b2ba JF |
1406 | |
1407 | /* If the view is backgrounded the above calls to report() | |
1408 | * won't redraw the view title. */ | |
1409 | if (backgrounded) | |
1410 | update_view_title(view); | |
b801d8b2 JF |
1411 | } |
1412 | ||
1413 | ||
6b161b31 JF |
1414 | /* |
1415 | * User request switch noodle | |
1416 | */ | |
1417 | ||
b801d8b2 | 1418 | static int |
6b161b31 | 1419 | view_driver(struct view *view, enum request request) |
b801d8b2 | 1420 | { |
b801d8b2 JF |
1421 | int i; |
1422 | ||
1423 | switch (request) { | |
4a2909a7 JF |
1424 | case REQ_MOVE_UP: |
1425 | case REQ_MOVE_DOWN: | |
1426 | case REQ_MOVE_PAGE_UP: | |
1427 | case REQ_MOVE_PAGE_DOWN: | |
1428 | case REQ_MOVE_FIRST_LINE: | |
1429 | case REQ_MOVE_LAST_LINE: | |
b3a54cba | 1430 | move_view(view, request, TRUE); |
fd85fef1 JF |
1431 | break; |
1432 | ||
4a2909a7 JF |
1433 | case REQ_SCROLL_LINE_DOWN: |
1434 | case REQ_SCROLL_LINE_UP: | |
1435 | case REQ_SCROLL_PAGE_DOWN: | |
1436 | case REQ_SCROLL_PAGE_UP: | |
a28bcc22 | 1437 | scroll_view(view, request); |
b801d8b2 JF |
1438 | break; |
1439 | ||
4a2909a7 | 1440 | case REQ_VIEW_MAIN: |
4a2909a7 | 1441 | case REQ_VIEW_DIFF: |
2e8488b4 JF |
1442 | case REQ_VIEW_LOG: |
1443 | case REQ_VIEW_HELP: | |
6908bdbd | 1444 | case REQ_VIEW_PAGER: |
49f2b43f | 1445 | open_view(view, request, OPEN_DEFAULT); |
b801d8b2 JF |
1446 | break; |
1447 | ||
b3a54cba JF |
1448 | case REQ_NEXT: |
1449 | case REQ_PREVIOUS: | |
1450 | request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP; | |
1451 | ||
1452 | if (view == VIEW(REQ_VIEW_DIFF) && | |
1453 | view->parent == VIEW(REQ_VIEW_MAIN)) { | |
f0b3ab80 | 1454 | bool redraw = display[1] == view; |
b3a54cba JF |
1455 | |
1456 | view = view->parent; | |
1457 | move_view(view, request, redraw); | |
f0b3ab80 JF |
1458 | if (redraw) |
1459 | update_view_title(view); | |
b3a54cba JF |
1460 | } else { |
1461 | move_view(view, request, TRUE); | |
1462 | break; | |
1463 | } | |
6706b2ba JF |
1464 | /* Fall-through */ |
1465 | ||
6b161b31 | 1466 | case REQ_ENTER: |
6908bdbd JF |
1467 | if (!view->lines) { |
1468 | report("Nothing to enter"); | |
1469 | break; | |
1470 | } | |
fe7233c3 | 1471 | return view->ops->enter(view, &view->line[view->lineno]); |
6b161b31 | 1472 | |
03a93dbb JF |
1473 | case REQ_VIEW_NEXT: |
1474 | { | |
9f41488f | 1475 | int nviews = displayed_views(); |
03a93dbb JF |
1476 | int next_view = (current_view + 1) % nviews; |
1477 | ||
1478 | if (next_view == current_view) { | |
1479 | report("Only one view is displayed"); | |
1480 | break; | |
1481 | } | |
1482 | ||
1483 | current_view = next_view; | |
1484 | /* Blur out the title of the previous view. */ | |
1485 | update_view_title(view); | |
6734f6b9 | 1486 | report(""); |
03a93dbb JF |
1487 | break; |
1488 | } | |
24b5b3e0 | 1489 | case REQ_TOGGLE_LINENO: |
b76c2afc | 1490 | opt_line_number = !opt_line_number; |
20bb5e18 | 1491 | redraw_display(); |
b801d8b2 JF |
1492 | break; |
1493 | ||
54efb62b JF |
1494 | case REQ_TOGGLE_REV_GRAPH: |
1495 | opt_rev_graph = !opt_rev_graph; | |
1496 | redraw_display(); | |
1497 | break; | |
1498 | ||
03a93dbb | 1499 | case REQ_PROMPT: |
8855ada4 | 1500 | /* Always reload^Wrerun commands from the prompt. */ |
49f2b43f | 1501 | open_view(view, opt_request, OPEN_RELOAD); |
03a93dbb JF |
1502 | break; |
1503 | ||
4a2909a7 | 1504 | case REQ_STOP_LOADING: |
59a45d3a JF |
1505 | for (i = 0; i < ARRAY_SIZE(views); i++) { |
1506 | view = &views[i]; | |
2e8488b4 | 1507 | if (view->pipe) |
6a7bb912 | 1508 | report("Stopped loading the %s view", view->name), |
03a93dbb JF |
1509 | end_update(view); |
1510 | } | |
b801d8b2 JF |
1511 | break; |
1512 | ||
4a2909a7 | 1513 | case REQ_SHOW_VERSION: |
6cb291b7 | 1514 | report("%s (built %s)", VERSION, __DATE__); |
b801d8b2 JF |
1515 | return TRUE; |
1516 | ||
fac7db6c JF |
1517 | case REQ_SCREEN_RESIZE: |
1518 | resize_display(); | |
1519 | /* Fall-through */ | |
4a2909a7 | 1520 | case REQ_SCREEN_REDRAW: |
20bb5e18 | 1521 | redraw_display(); |
4a2909a7 JF |
1522 | break; |
1523 | ||
1524 | case REQ_SCREEN_UPDATE: | |
b801d8b2 JF |
1525 | doupdate(); |
1526 | return TRUE; | |
1527 | ||
4f9b667a | 1528 | case REQ_VIEW_CLOSE: |
2fcf5401 JF |
1529 | /* XXX: Mark closed views by letting view->parent point to the |
1530 | * view itself. Parents to closed view should never be | |
1531 | * followed. */ | |
1532 | if (view->parent && | |
1533 | view->parent->parent != view->parent) { | |
4f9b667a JF |
1534 | memset(display, 0, sizeof(display)); |
1535 | current_view = 0; | |
f6da0b66 | 1536 | display[current_view] = view->parent; |
2fcf5401 | 1537 | view->parent = view; |
4f9b667a JF |
1538 | resize_display(); |
1539 | redraw_display(); | |
1540 | break; | |
1541 | } | |
1542 | /* Fall-through */ | |
b801d8b2 JF |
1543 | case REQ_QUIT: |
1544 | return FALSE; | |
1545 | ||
1546 | default: | |
2e8488b4 | 1547 | /* An unknown key will show most commonly used commands. */ |
468876c9 | 1548 | report("Unknown key, press 'h' for help"); |
b801d8b2 JF |
1549 | return TRUE; |
1550 | } | |
1551 | ||
1552 | return TRUE; | |
1553 | } | |
1554 | ||
1555 | ||
1556 | /* | |
ff26aa29 | 1557 | * Pager backend |
b801d8b2 JF |
1558 | */ |
1559 | ||
6b161b31 | 1560 | static bool |
fe7233c3 | 1561 | pager_draw(struct view *view, struct line *line, unsigned int lineno) |
b801d8b2 | 1562 | { |
fe7233c3 JF |
1563 | char *text = line->data; |
1564 | enum line_type type = line->type; | |
1565 | int textlen = strlen(text); | |
78c70acd | 1566 | int attr; |
b801d8b2 | 1567 | |
6706b2ba JF |
1568 | wmove(view->win, lineno, 0); |
1569 | ||
fd85fef1 | 1570 | if (view->offset + lineno == view->lineno) { |
8855ada4 | 1571 | if (type == LINE_COMMIT) { |
fe7233c3 | 1572 | string_copy(view->ref, text + 7); |
03a93dbb JF |
1573 | string_copy(ref_commit, view->ref); |
1574 | } | |
8855ada4 | 1575 | |
78c70acd | 1576 | type = LINE_CURSOR; |
6706b2ba | 1577 | wchgat(view->win, -1, 0, type, NULL); |
fd85fef1 JF |
1578 | } |
1579 | ||
78c70acd | 1580 | attr = get_line_attr(type); |
b801d8b2 | 1581 | wattrset(view->win, attr); |
b76c2afc | 1582 | |
6706b2ba JF |
1583 | if (opt_line_number || opt_tab_size < TABSIZE) { |
1584 | static char spaces[] = " "; | |
1585 | int col_offset = 0, col = 0; | |
1586 | ||
1587 | if (opt_line_number) { | |
1588 | unsigned long real_lineno = view->offset + lineno + 1; | |
82e78006 | 1589 | |
6706b2ba JF |
1590 | if (real_lineno == 1 || |
1591 | (real_lineno % opt_num_interval) == 0) { | |
1592 | wprintw(view->win, "%.*d", view->digits, real_lineno); | |
8855ada4 | 1593 | |
6706b2ba JF |
1594 | } else { |
1595 | waddnstr(view->win, spaces, | |
1596 | MIN(view->digits, STRING_SIZE(spaces))); | |
1597 | } | |
1598 | waddstr(view->win, ": "); | |
1599 | col_offset = view->digits + 2; | |
1600 | } | |
8855ada4 | 1601 | |
fe7233c3 | 1602 | while (text && col_offset + col < view->width) { |
6706b2ba | 1603 | int cols_max = view->width - col_offset - col; |
fe7233c3 | 1604 | char *pos = text; |
6706b2ba | 1605 | int cols; |
4c6fabc2 | 1606 | |
fe7233c3 JF |
1607 | if (*text == '\t') { |
1608 | text++; | |
6706b2ba | 1609 | assert(sizeof(spaces) > TABSIZE); |
fe7233c3 | 1610 | pos = spaces; |
6706b2ba | 1611 | cols = opt_tab_size - (col % opt_tab_size); |
82e78006 | 1612 | |
b76c2afc | 1613 | } else { |
fe7233c3 JF |
1614 | text = strchr(text, '\t'); |
1615 | cols = line ? text - pos : strlen(pos); | |
b76c2afc | 1616 | } |
6706b2ba | 1617 | |
fe7233c3 | 1618 | waddnstr(view->win, pos, MIN(cols, cols_max)); |
6706b2ba | 1619 | col += cols; |
b76c2afc | 1620 | } |
b76c2afc JF |
1621 | |
1622 | } else { | |
6706b2ba | 1623 | int col = 0, pos = 0; |
b801d8b2 | 1624 | |
fe7233c3 JF |
1625 | for (; pos < textlen && col < view->width; pos++, col++) |
1626 | if (text[pos] == '\t') | |
6706b2ba JF |
1627 | col += TABSIZE - (col % TABSIZE) - 1; |
1628 | ||
fe7233c3 | 1629 | waddnstr(view->win, text, pos); |
6706b2ba | 1630 | } |
2e8488b4 | 1631 | |
b801d8b2 JF |
1632 | return TRUE; |
1633 | } | |
1634 | ||
7b99a34c JF |
1635 | static void |
1636 | add_pager_refs(struct view *view, struct line *line) | |
1637 | { | |
1638 | char buf[1024]; | |
1639 | char *data = line->data; | |
1640 | struct ref **refs; | |
1641 | int bufpos = 0, refpos = 0; | |
1642 | const char *sep = "Refs: "; | |
1643 | ||
1644 | assert(line->type == LINE_COMMIT); | |
1645 | ||
1646 | refs = get_refs(data + STRING_SIZE("commit ")); | |
1647 | if (!refs) | |
1648 | return; | |
1649 | ||
1650 | do { | |
cc2d1364 JF |
1651 | struct ref *ref = refs[refpos]; |
1652 | char *fmt = ref->tag ? "%s[%s]" : "%s%s"; | |
7b99a34c | 1653 | |
cc2d1364 JF |
1654 | if (!string_format_from(buf, &bufpos, fmt, sep, ref->name)) |
1655 | return; | |
7b99a34c JF |
1656 | sep = ", "; |
1657 | } while (refs[refpos++]->next); | |
1658 | ||
cc2d1364 | 1659 | if (!realloc_lines(view, view->line_size + 1)) |
7b99a34c JF |
1660 | return; |
1661 | ||
1662 | line = &view->line[view->lines]; | |
1663 | line->data = strdup(buf); | |
1664 | if (!line->data) | |
1665 | return; | |
1666 | ||
1667 | line->type = LINE_PP_REFS; | |
1668 | view->lines++; | |
1669 | } | |
1670 | ||
6b161b31 | 1671 | static bool |
701e4f5d | 1672 | pager_read(struct view *view, char *data) |
22f66b0a | 1673 | { |
7b99a34c | 1674 | struct line *line = &view->line[view->lines]; |
22f66b0a | 1675 | |
7b99a34c JF |
1676 | line->data = strdup(data); |
1677 | if (!line->data) | |
1678 | return FALSE; | |
fe7233c3 | 1679 | |
7b99a34c | 1680 | line->type = get_line_type(line->data); |
22f66b0a | 1681 | view->lines++; |
7b99a34c JF |
1682 | |
1683 | if (line->type == LINE_COMMIT && | |
1684 | (view == VIEW(REQ_VIEW_DIFF) || | |
1685 | view == VIEW(REQ_VIEW_LOG))) | |
1686 | add_pager_refs(view, line); | |
1687 | ||
22f66b0a JF |
1688 | return TRUE; |
1689 | } | |
1690 | ||
6b161b31 | 1691 | static bool |
fe7233c3 | 1692 | pager_enter(struct view *view, struct line *line) |
6b161b31 | 1693 | { |
91e8e277 | 1694 | int split = 0; |
6b161b31 | 1695 | |
9fbbd28f JF |
1696 | if (line->type == LINE_COMMIT && |
1697 | (view == VIEW(REQ_VIEW_LOG) || | |
1698 | view == VIEW(REQ_VIEW_PAGER))) { | |
91e8e277 JF |
1699 | open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT); |
1700 | split = 1; | |
67e48ac5 JF |
1701 | } |
1702 | ||
91e8e277 JF |
1703 | /* Always scroll the view even if it was split. That way |
1704 | * you can use Enter to scroll through the log view and | |
1705 | * split open each commit diff. */ | |
1706 | scroll_view(view, REQ_SCROLL_LINE_DOWN); | |
1707 | ||
1708 | /* FIXME: A minor workaround. Scrolling the view will call report("") | |
9d82d824 JF |
1709 | * but if we are scrolling a non-current view this won't properly |
1710 | * update the view title. */ | |
91e8e277 JF |
1711 | if (split) |
1712 | update_view_title(view); | |
6b161b31 JF |
1713 | |
1714 | return TRUE; | |
1715 | } | |
1716 | ||
6b161b31 | 1717 | static struct view_ops pager_ops = { |
6734f6b9 | 1718 | "line", |
6b161b31 JF |
1719 | pager_draw, |
1720 | pager_read, | |
1721 | pager_enter, | |
1722 | }; | |
1723 | ||
80ce96ea | 1724 | |
ff26aa29 JF |
1725 | /* |
1726 | * Main view backend | |
1727 | */ | |
1728 | ||
1729 | struct commit { | |
54efb62b JF |
1730 | char id[41]; /* SHA1 ID. */ |
1731 | char title[75]; /* First line of the commit message. */ | |
1732 | char author[75]; /* Author of the commit. */ | |
1733 | struct tm time; /* Date from the author ident. */ | |
1734 | struct ref **refs; /* Repository references. */ | |
1735 | chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */ | |
1736 | size_t graph_size; /* The width of the graph array. */ | |
ff26aa29 | 1737 | }; |
c34d9c9f | 1738 | |
6b161b31 | 1739 | static bool |
fe7233c3 | 1740 | main_draw(struct view *view, struct line *line, unsigned int lineno) |
22f66b0a | 1741 | { |
2e8488b4 | 1742 | char buf[DATE_COLS + 1]; |
fe7233c3 | 1743 | struct commit *commit = line->data; |
78c70acd | 1744 | enum line_type type; |
6706b2ba | 1745 | int col = 0; |
b76c2afc | 1746 | size_t timelen; |
10e290ee | 1747 | size_t authorlen; |
9989bf60 | 1748 | int trimmed = 1; |
22f66b0a | 1749 | |
4c6fabc2 JF |
1750 | if (!*commit->author) |
1751 | return FALSE; | |
22f66b0a | 1752 | |
6706b2ba JF |
1753 | wmove(view->win, lineno, col); |
1754 | ||
22f66b0a | 1755 | if (view->offset + lineno == view->lineno) { |
03a93dbb | 1756 | string_copy(view->ref, commit->id); |
49f2b43f | 1757 | string_copy(ref_commit, view->ref); |
78c70acd | 1758 | type = LINE_CURSOR; |
6706b2ba JF |
1759 | wattrset(view->win, get_line_attr(type)); |
1760 | wchgat(view->win, -1, 0, type, NULL); | |
1761 | ||
78c70acd | 1762 | } else { |
b76c2afc | 1763 | type = LINE_MAIN_COMMIT; |
6706b2ba | 1764 | wattrset(view->win, get_line_attr(LINE_MAIN_DATE)); |
b76c2afc JF |
1765 | } |
1766 | ||
4c6fabc2 | 1767 | timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time); |
b76c2afc | 1768 | waddnstr(view->win, buf, timelen); |
4c6fabc2 | 1769 | waddstr(view->win, " "); |
b76c2afc | 1770 | |
6706b2ba JF |
1771 | col += DATE_COLS; |
1772 | wmove(view->win, lineno, col); | |
1773 | if (type != LINE_CURSOR) | |
1774 | wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR)); | |
b76c2afc | 1775 | |
9989bf60 JF |
1776 | if (opt_utf8) { |
1777 | authorlen = utf8_length(commit->author, AUTHOR_COLS - 2, &col, &trimmed); | |
1778 | } else { | |
1779 | authorlen = strlen(commit->author); | |
1780 | if (authorlen > AUTHOR_COLS - 2) { | |
1781 | authorlen = AUTHOR_COLS - 2; | |
1782 | trimmed = 1; | |
1783 | } | |
1784 | } | |
10e290ee JF |
1785 | |
1786 | if (trimmed) { | |
1787 | waddnstr(view->win, commit->author, authorlen); | |
6706b2ba JF |
1788 | if (type != LINE_CURSOR) |
1789 | wattrset(view->win, get_line_attr(LINE_MAIN_DELIM)); | |
b76c2afc JF |
1790 | waddch(view->win, '~'); |
1791 | } else { | |
1792 | waddstr(view->win, commit->author); | |
22f66b0a JF |
1793 | } |
1794 | ||
10e290ee | 1795 | col += AUTHOR_COLS; |
6706b2ba JF |
1796 | if (type != LINE_CURSOR) |
1797 | wattrset(view->win, A_NORMAL); | |
1798 | ||
54efb62b JF |
1799 | if (opt_rev_graph && commit->graph_size) { |
1800 | size_t i; | |
1801 | ||
1802 | wmove(view->win, lineno, col); | |
1803 | /* Using waddch() instead of waddnstr() ensures that | |
1804 | * they'll be rendered correctly for the cursor line. */ | |
1805 | for (i = 0; i < commit->graph_size; i++) | |
1806 | waddch(view->win, commit->graph[i]); | |
1807 | ||
1808 | col += commit->graph_size + 1; | |
1809 | } | |
1810 | ||
1811 | wmove(view->win, lineno, col); | |
c34d9c9f JF |
1812 | |
1813 | if (commit->refs) { | |
1814 | size_t i = 0; | |
1815 | ||
1816 | do { | |
6706b2ba JF |
1817 | if (type == LINE_CURSOR) |
1818 | ; | |
1819 | else if (commit->refs[i]->tag) | |
c34d9c9f JF |
1820 | wattrset(view->win, get_line_attr(LINE_MAIN_TAG)); |
1821 | else | |
1822 | wattrset(view->win, get_line_attr(LINE_MAIN_REF)); | |
1823 | waddstr(view->win, "["); | |
1824 | waddstr(view->win, commit->refs[i]->name); | |
1825 | waddstr(view->win, "]"); | |
6706b2ba JF |
1826 | if (type != LINE_CURSOR) |
1827 | wattrset(view->win, A_NORMAL); | |
c34d9c9f | 1828 | waddstr(view->win, " "); |
6706b2ba | 1829 | col += strlen(commit->refs[i]->name) + STRING_SIZE("[] "); |
c34d9c9f JF |
1830 | } while (commit->refs[i++]->next); |
1831 | } | |
1832 | ||
6706b2ba JF |
1833 | if (type != LINE_CURSOR) |
1834 | wattrset(view->win, get_line_attr(type)); | |
1835 | ||
1836 | { | |
1837 | int titlelen = strlen(commit->title); | |
1838 | ||
1839 | if (col + titlelen > view->width) | |
1840 | titlelen = view->width - col; | |
1841 | ||
1842 | waddnstr(view->win, commit->title, titlelen); | |
1843 | } | |
22f66b0a JF |
1844 | |
1845 | return TRUE; | |
1846 | } | |
1847 | ||
4c6fabc2 | 1848 | /* Reads git log --pretty=raw output and parses it into the commit struct. */ |
6b161b31 | 1849 | static bool |
701e4f5d | 1850 | main_read(struct view *view, char *line) |
22f66b0a | 1851 | { |
78c70acd | 1852 | enum line_type type = get_line_type(line); |
701e4f5d JF |
1853 | struct commit *commit = view->lines |
1854 | ? view->line[view->lines - 1].data : NULL; | |
22f66b0a | 1855 | |
78c70acd JF |
1856 | switch (type) { |
1857 | case LINE_COMMIT: | |
22f66b0a JF |
1858 | commit = calloc(1, sizeof(struct commit)); |
1859 | if (!commit) | |
1860 | return FALSE; | |
1861 | ||
4c6fabc2 | 1862 | line += STRING_SIZE("commit "); |
b76c2afc | 1863 | |
fe7233c3 | 1864 | view->line[view->lines++].data = commit; |
82e78006 | 1865 | string_copy(commit->id, line); |
c34d9c9f | 1866 | commit->refs = get_refs(commit->id); |
54efb62b | 1867 | commit->graph[commit->graph_size++] = ACS_LTEE; |
78c70acd | 1868 | break; |
22f66b0a | 1869 | |
8855ada4 | 1870 | case LINE_AUTHOR: |
b76c2afc | 1871 | { |
4c6fabc2 | 1872 | char *ident = line + STRING_SIZE("author "); |
b76c2afc JF |
1873 | char *end = strchr(ident, '<'); |
1874 | ||
701e4f5d | 1875 | if (!commit) |
fe7233c3 JF |
1876 | break; |
1877 | ||
b76c2afc JF |
1878 | if (end) { |
1879 | for (; end > ident && isspace(end[-1]); end--) ; | |
1880 | *end = 0; | |
1881 | } | |
1882 | ||
82e78006 | 1883 | string_copy(commit->author, ident); |
b76c2afc | 1884 | |
4c6fabc2 | 1885 | /* Parse epoch and timezone */ |
b76c2afc JF |
1886 | if (end) { |
1887 | char *secs = strchr(end + 1, '>'); | |
1888 | char *zone; | |
1889 | time_t time; | |
1890 | ||
1891 | if (!secs || secs[1] != ' ') | |
1892 | break; | |
1893 | ||
1894 | secs += 2; | |
1895 | time = (time_t) atol(secs); | |
1896 | zone = strchr(secs, ' '); | |
4c6fabc2 | 1897 | if (zone && strlen(zone) == STRING_SIZE(" +0700")) { |
b76c2afc JF |
1898 | long tz; |
1899 | ||
1900 | zone++; | |
1901 | tz = ('0' - zone[1]) * 60 * 60 * 10; | |
1902 | tz += ('0' - zone[2]) * 60 * 60; | |
1903 | tz += ('0' - zone[3]) * 60; | |
1904 | tz += ('0' - zone[4]) * 60; | |
1905 | ||
1906 | if (zone[0] == '-') | |
1907 | tz = -tz; | |
1908 | ||
1909 | time -= tz; | |
1910 | } | |
1911 | gmtime_r(&time, &commit->time); | |
1912 | } | |
1913 | break; | |
1914 | } | |
78c70acd | 1915 | default: |
701e4f5d | 1916 | if (!commit) |
2e8488b4 JF |
1917 | break; |
1918 | ||
1919 | /* Fill in the commit title if it has not already been set. */ | |
2e8488b4 JF |
1920 | if (commit->title[0]) |
1921 | break; | |
1922 | ||
1923 | /* Require titles to start with a non-space character at the | |
1924 | * offset used by git log. */ | |
eb98559e JF |
1925 | /* FIXME: More gracefull handling of titles; append "..." to |
1926 | * shortened titles, etc. */ | |
2e8488b4 | 1927 | if (strncmp(line, " ", 4) || |
eb98559e | 1928 | isspace(line[4])) |
82e78006 JF |
1929 | break; |
1930 | ||
1931 | string_copy(commit->title, line + 4); | |
22f66b0a JF |
1932 | } |
1933 | ||
1934 | return TRUE; | |
1935 | } | |
1936 | ||
6b161b31 | 1937 | static bool |
fe7233c3 | 1938 | main_enter(struct view *view, struct line *line) |
b801d8b2 | 1939 | { |
b3a54cba JF |
1940 | enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT; |
1941 | ||
1942 | open_view(view, REQ_VIEW_DIFF, flags); | |
6b161b31 | 1943 | return TRUE; |
b801d8b2 JF |
1944 | } |
1945 | ||
6b161b31 | 1946 | static struct view_ops main_ops = { |
6734f6b9 | 1947 | "commit", |
6b161b31 JF |
1948 | main_draw, |
1949 | main_read, | |
1950 | main_enter, | |
1951 | }; | |
2e8488b4 | 1952 | |
c34d9c9f | 1953 | |
d839253b JF |
1954 | /* |
1955 | * Keys | |
1956 | */ | |
468876c9 JF |
1957 | |
1958 | struct keymap { | |
1959 | int alias; | |
1960 | int request; | |
1961 | }; | |
1962 | ||
3a91b75e | 1963 | static struct keymap keymap[] = { |
d839253b | 1964 | /* View switching */ |
b3a54cba JF |
1965 | { 'm', REQ_VIEW_MAIN }, |
1966 | { 'd', REQ_VIEW_DIFF }, | |
1967 | { 'l', REQ_VIEW_LOG }, | |
1968 | { 'p', REQ_VIEW_PAGER }, | |
1969 | { 'h', REQ_VIEW_HELP }, | |
24b5b3e0 | 1970 | { '?', REQ_VIEW_HELP }, |
b3a54cba | 1971 | |
d839253b | 1972 | /* View manipulation */ |
4f9b667a | 1973 | { 'q', REQ_VIEW_CLOSE }, |
468876c9 JF |
1974 | { KEY_TAB, REQ_VIEW_NEXT }, |
1975 | { KEY_RETURN, REQ_ENTER }, | |
b3a54cba JF |
1976 | { KEY_UP, REQ_PREVIOUS }, |
1977 | { KEY_DOWN, REQ_NEXT }, | |
468876c9 | 1978 | |
d839253b | 1979 | /* Cursor navigation */ |
b3a54cba JF |
1980 | { 'k', REQ_MOVE_UP }, |
1981 | { 'j', REQ_MOVE_DOWN }, | |
468876c9 JF |
1982 | { KEY_HOME, REQ_MOVE_FIRST_LINE }, |
1983 | { KEY_END, REQ_MOVE_LAST_LINE }, | |
1984 | { KEY_NPAGE, REQ_MOVE_PAGE_DOWN }, | |
c622eefa | 1985 | { ' ', REQ_MOVE_PAGE_DOWN }, |
468876c9 | 1986 | { KEY_PPAGE, REQ_MOVE_PAGE_UP }, |
c622eefa | 1987 | { 'b', REQ_MOVE_PAGE_UP }, |
0df811cb | 1988 | { '-', REQ_MOVE_PAGE_UP }, |
468876c9 | 1989 | |
d839253b | 1990 | /* Scrolling */ |
468876c9 JF |
1991 | { KEY_IC, REQ_SCROLL_LINE_UP }, |
1992 | { KEY_DC, REQ_SCROLL_LINE_DOWN }, | |
1993 | { 'w', REQ_SCROLL_PAGE_UP }, | |
1994 | { 's', REQ_SCROLL_PAGE_DOWN }, | |
1995 | ||
d839253b | 1996 | /* Misc */ |
d9d1c722 | 1997 | { 'Q', REQ_QUIT }, |
468876c9 JF |
1998 | { 'z', REQ_STOP_LOADING }, |
1999 | { 'v', REQ_SHOW_VERSION }, | |
2000 | { 'r', REQ_SCREEN_REDRAW }, | |
24b5b3e0 | 2001 | { 'n', REQ_TOGGLE_LINENO }, |
54efb62b | 2002 | { 'g', REQ_TOGGLE_REV_GRAPH}, |
468876c9 JF |
2003 | { ':', REQ_PROMPT }, |
2004 | ||
2005 | /* wgetch() with nodelay() enabled returns ERR when there's no input. */ | |
2006 | { ERR, REQ_SCREEN_UPDATE }, | |
2007 | ||
2008 | /* Use the ncurses SIGWINCH handler. */ | |
2009 | { KEY_RESIZE, REQ_SCREEN_RESIZE }, | |
2010 | }; | |
2011 | ||
2012 | static enum request | |
2013 | get_request(int key) | |
2014 | { | |
2015 | int i; | |
2016 | ||
2017 | for (i = 0; i < ARRAY_SIZE(keymap); i++) | |
2018 | if (keymap[i].alias == key) | |
2019 | return keymap[i].request; | |
2020 | ||
2021 | return (enum request) key; | |
2022 | } | |
2023 | ||
24b5b3e0 JF |
2024 | struct key { |
2025 | char *name; | |
2026 | int value; | |
2027 | }; | |
2028 | ||
2029 | static struct key key_table[] = { | |
2030 | { "Enter", KEY_RETURN }, | |
2031 | { "Space", ' ' }, | |
2032 | { "Backspace", KEY_BACKSPACE }, | |
2033 | { "Tab", KEY_TAB }, | |
2034 | { "Escape", KEY_ESC }, | |
2035 | { "Left", KEY_LEFT }, | |
2036 | { "Right", KEY_RIGHT }, | |
2037 | { "Up", KEY_UP }, | |
2038 | { "Down", KEY_DOWN }, | |
2039 | { "Insert", KEY_IC }, | |
2040 | { "Delete", KEY_DC }, | |
2041 | { "Home", KEY_HOME }, | |
2042 | { "End", KEY_END }, | |
2043 | { "PageUp", KEY_PPAGE }, | |
2044 | { "PageDown", KEY_NPAGE }, | |
2045 | { "F1", KEY_F(1) }, | |
2046 | { "F2", KEY_F(2) }, | |
2047 | { "F3", KEY_F(3) }, | |
2048 | { "F4", KEY_F(4) }, | |
2049 | { "F5", KEY_F(5) }, | |
2050 | { "F6", KEY_F(6) }, | |
2051 | { "F7", KEY_F(7) }, | |
2052 | { "F8", KEY_F(8) }, | |
2053 | { "F9", KEY_F(9) }, | |
2054 | { "F10", KEY_F(10) }, | |
2055 | { "F11", KEY_F(11) }, | |
2056 | { "F12", KEY_F(12) }, | |
2057 | }; | |
2058 | ||
2059 | static char * | |
2060 | get_key(enum request request) | |
2061 | { | |
2062 | static char buf[BUFSIZ]; | |
2063 | static char key_char[] = "'X'"; | |
2064 | int pos = 0; | |
2065 | char *sep = " "; | |
2066 | int i; | |
2067 | ||
2068 | buf[pos] = 0; | |
2069 | ||
2070 | for (i = 0; i < ARRAY_SIZE(keymap); i++) { | |
2071 | char *seq = NULL; | |
2072 | int key; | |
2073 | ||
2074 | if (keymap[i].request != request) | |
2075 | continue; | |
2076 | ||
2077 | for (key = 0; key < ARRAY_SIZE(key_table); key++) | |
2078 | if (key_table[key].value == keymap[i].alias) | |
2079 | seq = key_table[key].name; | |
2080 | ||
2081 | if (seq == NULL && | |
2082 | keymap[i].alias < 127 && | |
2083 | isprint(keymap[i].alias)) { | |
2084 | key_char[1] = (char) keymap[i].alias; | |
2085 | seq = key_char; | |
2086 | } | |
2087 | ||
2088 | if (!seq) | |
2089 | seq = "'?'"; | |
2090 | ||
cc2d1364 | 2091 | if (!string_format_from(buf, &pos, "%s%s", sep, seq)) |
24b5b3e0 JF |
2092 | return "Too many keybindings!"; |
2093 | sep = ", "; | |
2094 | } | |
2095 | ||
2096 | return buf; | |
2097 | } | |
2098 | ||
2099 | static void load_help_page(void) | |
2100 | { | |
2101 | char buf[BUFSIZ]; | |
2102 | struct view *view = VIEW(REQ_VIEW_HELP); | |
2103 | int lines = ARRAY_SIZE(req_info) + 2; | |
2104 | int i; | |
2105 | ||
2106 | if (view->lines > 0) | |
2107 | return; | |
2108 | ||
2109 | for (i = 0; i < ARRAY_SIZE(req_info); i++) | |
2110 | if (!req_info[i].request) | |
2111 | lines++; | |
2112 | ||
2113 | view->line = calloc(lines, sizeof(*view->line)); | |
2114 | if (!view->line) { | |
2115 | report("Allocation failure"); | |
2116 | return; | |
2117 | } | |
2118 | ||
701e4f5d | 2119 | pager_read(view, "Quick reference for tig keybindings:"); |
24b5b3e0 JF |
2120 | |
2121 | for (i = 0; i < ARRAY_SIZE(req_info); i++) { | |
2122 | char *key; | |
2123 | ||
2124 | if (!req_info[i].request) { | |
701e4f5d JF |
2125 | pager_read(view, ""); |
2126 | pager_read(view, req_info[i].help); | |
24b5b3e0 JF |
2127 | continue; |
2128 | } | |
2129 | ||
2130 | key = get_key(req_info[i].request); | |
fff1780f | 2131 | if (!string_format(buf, "%-25s %s", key, req_info[i].help)) |
24b5b3e0 JF |
2132 | continue; |
2133 | ||
701e4f5d | 2134 | pager_read(view, buf); |
24b5b3e0 JF |
2135 | } |
2136 | } | |
2137 | ||
468876c9 | 2138 | |
6b161b31 | 2139 | /* |
10e290ee JF |
2140 | * Unicode / UTF-8 handling |
2141 | * | |
2142 | * NOTE: Much of the following code for dealing with unicode is derived from | |
2143 | * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is | |
2144 | * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28. | |
2145 | */ | |
2146 | ||
2147 | /* I've (over)annotated a lot of code snippets because I am not entirely | |
2148 | * confident that the approach taken by this small UTF-8 interface is correct. | |
2149 | * --jonas */ | |
2150 | ||
2151 | static inline int | |
2152 | unicode_width(unsigned long c) | |
2153 | { | |
2154 | if (c >= 0x1100 && | |
2155 | (c <= 0x115f /* Hangul Jamo */ | |
2156 | || c == 0x2329 | |
2157 | || c == 0x232a | |
2158 | || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f) | |
f97f4012 | 2159 | /* CJK ... Yi */ |
10e290ee JF |
2160 | || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */ |
2161 | || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */ | |
2162 | || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */ | |
2163 | || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */ | |
2164 | || (c >= 0xffe0 && c <= 0xffe6) | |
2165 | || (c >= 0x20000 && c <= 0x2fffd) | |
2166 | || (c >= 0x30000 && c <= 0x3fffd))) | |
2167 | return 2; | |
2168 | ||
2169 | return 1; | |
2170 | } | |
2171 | ||
2172 | /* Number of bytes used for encoding a UTF-8 character indexed by first byte. | |
2173 | * Illegal bytes are set one. */ | |
2174 | static const unsigned char utf8_bytes[256] = { | |
2175 | 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, | |
2176 | 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, | |
2177 | 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, | |
2178 | 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, | |
2179 | 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, | |
2180 | 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, | |
2181 | 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, | |
2182 | 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, | |
2183 | }; | |
2184 | ||
2185 | /* Decode UTF-8 multi-byte representation into a unicode character. */ | |
2186 | static inline unsigned long | |
2187 | utf8_to_unicode(const char *string, size_t length) | |
2188 | { | |
2189 | unsigned long unicode; | |
2190 | ||
2191 | switch (length) { | |
2192 | case 1: | |
2193 | unicode = string[0]; | |
2194 | break; | |
2195 | case 2: | |
2196 | unicode = (string[0] & 0x1f) << 6; | |
2197 | unicode += (string[1] & 0x3f); | |
2198 | break; | |
2199 | case 3: | |
2200 | unicode = (string[0] & 0x0f) << 12; | |
2201 | unicode += ((string[1] & 0x3f) << 6); | |
2202 | unicode += (string[2] & 0x3f); | |
2203 | break; | |
2204 | case 4: | |
2205 | unicode = (string[0] & 0x0f) << 18; | |
2206 | unicode += ((string[1] & 0x3f) << 12); | |
2207 | unicode += ((string[2] & 0x3f) << 6); | |
2208 | unicode += (string[3] & 0x3f); | |
2209 | break; | |
2210 | case 5: | |
2211 | unicode = (string[0] & 0x0f) << 24; | |
2212 | unicode += ((string[1] & 0x3f) << 18); | |
2213 | unicode += ((string[2] & 0x3f) << 12); | |
2214 | unicode += ((string[3] & 0x3f) << 6); | |
2215 | unicode += (string[4] & 0x3f); | |
2216 | break; | |
68b6e0eb | 2217 | case 6: |
10e290ee JF |
2218 | unicode = (string[0] & 0x01) << 30; |
2219 | unicode += ((string[1] & 0x3f) << 24); | |
2220 | unicode += ((string[2] & 0x3f) << 18); | |
2221 | unicode += ((string[3] & 0x3f) << 12); | |
2222 | unicode += ((string[4] & 0x3f) << 6); | |
2223 | unicode += (string[5] & 0x3f); | |
2224 | break; | |
2225 | default: | |
2226 | die("Invalid unicode length"); | |
2227 | } | |
2228 | ||
2229 | /* Invalid characters could return the special 0xfffd value but NUL | |
2230 | * should be just as good. */ | |
2231 | return unicode > 0xffff ? 0 : unicode; | |
2232 | } | |
2233 | ||
2234 | /* Calculates how much of string can be shown within the given maximum width | |
2235 | * and sets trimmed parameter to non-zero value if all of string could not be | |
2236 | * shown. | |
2237 | * | |
2238 | * Additionally, adds to coloffset how many many columns to move to align with | |
2239 | * the expected position. Takes into account how multi-byte and double-width | |
2240 | * characters will effect the cursor position. | |
2241 | * | |
2242 | * Returns the number of bytes to output from string to satisfy max_width. */ | |
2243 | static size_t | |
2244 | utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed) | |
2245 | { | |
2246 | const char *start = string; | |
2247 | const char *end = strchr(string, '\0'); | |
2248 | size_t mbwidth = 0; | |
2249 | size_t width = 0; | |
2250 | ||
2251 | *trimmed = 0; | |
2252 | ||
2253 | while (string < end) { | |
2254 | int c = *(unsigned char *) string; | |
2255 | unsigned char bytes = utf8_bytes[c]; | |
2256 | size_t ucwidth; | |
2257 | unsigned long unicode; | |
2258 | ||
2259 | if (string + bytes > end) | |
2260 | break; | |
2261 | ||
2262 | /* Change representation to figure out whether | |
2263 | * it is a single- or double-width character. */ | |
2264 | ||
2265 | unicode = utf8_to_unicode(string, bytes); | |
2266 | /* FIXME: Graceful handling of invalid unicode character. */ | |
2267 | if (!unicode) | |
2268 | break; | |
2269 | ||
2270 | ucwidth = unicode_width(unicode); | |
2271 | width += ucwidth; | |
2272 | if (width > max_width) { | |
2273 | *trimmed = 1; | |
2274 | break; | |
2275 | } | |
2276 | ||
2277 | /* The column offset collects the differences between the | |
2278 | * number of bytes encoding a character and the number of | |
2279 | * columns will be used for rendering said character. | |
2280 | * | |
2281 | * So if some character A is encoded in 2 bytes, but will be | |
2282 | * represented on the screen using only 1 byte this will and up | |
2283 | * adding 1 to the multi-byte column offset. | |
2284 | * | |
2285 | * Assumes that no double-width character can be encoding in | |
2286 | * less than two bytes. */ | |
2287 | if (bytes > ucwidth) | |
2288 | mbwidth += bytes - ucwidth; | |
2289 | ||
2290 | string += bytes; | |
2291 | } | |
2292 | ||
2293 | *coloffset += mbwidth; | |
2294 | ||
2295 | return string - start; | |
2296 | } | |
2297 | ||
2298 | ||
2299 | /* | |
6b161b31 JF |
2300 | * Status management |
2301 | */ | |
2e8488b4 | 2302 | |
8855ada4 | 2303 | /* Whether or not the curses interface has been initialized. */ |
68b6e0eb | 2304 | static bool cursed = FALSE; |
8855ada4 | 2305 | |
6b161b31 JF |
2306 | /* The status window is used for polling keystrokes. */ |
2307 | static WINDOW *status_win; | |
4a2909a7 | 2308 | |
2e8488b4 | 2309 | /* Update status and title window. */ |
4a2909a7 JF |
2310 | static void |
2311 | report(const char *msg, ...) | |
2312 | { | |
6706b2ba JF |
2313 | static bool empty = TRUE; |
2314 | struct view *view = display[current_view]; | |
b76c2afc | 2315 | |
6706b2ba JF |
2316 | if (!empty || *msg) { |
2317 | va_list args; | |
4a2909a7 | 2318 | |
6706b2ba | 2319 | va_start(args, msg); |
4b76734f | 2320 | |
6706b2ba JF |
2321 | werase(status_win); |
2322 | wmove(status_win, 0, 0); | |
2323 | if (*msg) { | |
2324 | vwprintw(status_win, msg, args); | |
2325 | empty = FALSE; | |
2326 | } else { | |
2327 | empty = TRUE; | |
2328 | } | |
2329 | wrefresh(status_win); | |
b801d8b2 | 2330 | |
6706b2ba JF |
2331 | va_end(args); |
2332 | } | |
2333 | ||
2334 | update_view_title(view); | |
85af6284 | 2335 | update_display_cursor(); |
b801d8b2 JF |
2336 | } |
2337 | ||
6b161b31 JF |
2338 | /* Controls when nodelay should be in effect when polling user input. */ |
2339 | static void | |
1ba2ae4b | 2340 | set_nonblocking_input(bool loading) |
b801d8b2 | 2341 | { |
6706b2ba | 2342 | static unsigned int loading_views; |
b801d8b2 | 2343 | |
6706b2ba JF |
2344 | if ((loading == FALSE && loading_views-- == 1) || |
2345 | (loading == TRUE && loading_views++ == 0)) | |
1ba2ae4b | 2346 | nodelay(status_win, loading); |
6b161b31 JF |
2347 | } |
2348 | ||
2349 | static void | |
2350 | init_display(void) | |
2351 | { | |
2352 | int x, y; | |
b76c2afc | 2353 | |
6908bdbd JF |
2354 | /* Initialize the curses library */ |
2355 | if (isatty(STDIN_FILENO)) { | |
8855ada4 | 2356 | cursed = !!initscr(); |
6908bdbd JF |
2357 | } else { |
2358 | /* Leave stdin and stdout alone when acting as a pager. */ | |
2359 | FILE *io = fopen("/dev/tty", "r+"); | |
2360 | ||
8855ada4 | 2361 | cursed = !!newterm(NULL, io, io); |
6908bdbd JF |
2362 | } |
2363 | ||
8855ada4 JF |
2364 | if (!cursed) |
2365 | die("Failed to initialize curses"); | |
2366 | ||
2e8488b4 JF |
2367 | nonl(); /* Tell curses not to do NL->CR/NL on output */ |
2368 | cbreak(); /* Take input chars one at a time, no wait for \n */ | |
2369 | noecho(); /* Don't echo input */ | |
b801d8b2 | 2370 | leaveok(stdscr, TRUE); |
b801d8b2 JF |
2371 | |
2372 | if (has_colors()) | |
2373 | init_colors(); | |
2374 | ||
2375 | getmaxyx(stdscr, y, x); | |
2376 | status_win = newwin(1, 0, y - 1, 0); | |
2377 | if (!status_win) | |
2378 | die("Failed to create status window"); | |
2379 | ||
2380 | /* Enable keyboard mapping */ | |
2381 | keypad(status_win, TRUE); | |
78c70acd | 2382 | wbkgdset(status_win, get_line_attr(LINE_STATUS)); |
6b161b31 JF |
2383 | } |
2384 | ||
c34d9c9f JF |
2385 | |
2386 | /* | |
2387 | * Repository references | |
2388 | */ | |
2389 | ||
2390 | static struct ref *refs; | |
3a91b75e | 2391 | static size_t refs_size; |
c34d9c9f | 2392 | |
1307df1a JF |
2393 | /* Id <-> ref store */ |
2394 | static struct ref ***id_refs; | |
2395 | static size_t id_refs_size; | |
2396 | ||
c34d9c9f JF |
2397 | static struct ref ** |
2398 | get_refs(char *id) | |
2399 | { | |
1307df1a JF |
2400 | struct ref ***tmp_id_refs; |
2401 | struct ref **ref_list = NULL; | |
2402 | size_t ref_list_size = 0; | |
c34d9c9f JF |
2403 | size_t i; |
2404 | ||
1307df1a JF |
2405 | for (i = 0; i < id_refs_size; i++) |
2406 | if (!strcmp(id, id_refs[i][0]->id)) | |
2407 | return id_refs[i]; | |
2408 | ||
2409 | tmp_id_refs = realloc(id_refs, (id_refs_size + 1) * sizeof(*id_refs)); | |
2410 | if (!tmp_id_refs) | |
2411 | return NULL; | |
2412 | ||
2413 | id_refs = tmp_id_refs; | |
2414 | ||
c34d9c9f JF |
2415 | for (i = 0; i < refs_size; i++) { |
2416 | struct ref **tmp; | |
2417 | ||
2418 | if (strcmp(id, refs[i].id)) | |
2419 | continue; | |
2420 | ||
1307df1a | 2421 | tmp = realloc(ref_list, (ref_list_size + 1) * sizeof(*ref_list)); |
c34d9c9f | 2422 | if (!tmp) { |
1307df1a JF |
2423 | if (ref_list) |
2424 | free(ref_list); | |
c34d9c9f JF |
2425 | return NULL; |
2426 | } | |
2427 | ||
1307df1a JF |
2428 | ref_list = tmp; |
2429 | if (ref_list_size > 0) | |
2430 | ref_list[ref_list_size - 1]->next = 1; | |
2431 | ref_list[ref_list_size] = &refs[i]; | |
3af8774e JF |
2432 | |
2433 | /* XXX: The properties of the commit chains ensures that we can | |
2434 | * safely modify the shared ref. The repo references will | |
2435 | * always be similar for the same id. */ | |
1307df1a JF |
2436 | ref_list[ref_list_size]->next = 0; |
2437 | ref_list_size++; | |
c34d9c9f JF |
2438 | } |
2439 | ||
1307df1a JF |
2440 | if (ref_list) |
2441 | id_refs[id_refs_size++] = ref_list; | |
2442 | ||
2443 | return ref_list; | |
c34d9c9f JF |
2444 | } |
2445 | ||
2446 | static int | |
d0cea5f9 | 2447 | read_ref(char *id, int idlen, char *name, int namelen) |
c34d9c9f | 2448 | { |
d0cea5f9 JF |
2449 | struct ref *ref; |
2450 | bool tag = FALSE; | |
d0cea5f9 | 2451 | |
8b0297ae JF |
2452 | if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) { |
2453 | /* Commits referenced by tags has "^{}" appended. */ | |
2454 | if (name[namelen - 1] != '}') | |
2455 | return OK; | |
2456 | ||
d0cea5f9 JF |
2457 | while (namelen > 0 && name[namelen] != '^') |
2458 | namelen--; | |
c34d9c9f | 2459 | |
d0cea5f9 | 2460 | tag = TRUE; |
8b0297ae JF |
2461 | namelen -= STRING_SIZE("refs/tags/"); |
2462 | name += STRING_SIZE("refs/tags/"); | |
c34d9c9f | 2463 | |
d0cea5f9 | 2464 | } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) { |
8b0297ae JF |
2465 | namelen -= STRING_SIZE("refs/heads/"); |
2466 | name += STRING_SIZE("refs/heads/"); | |
c34d9c9f | 2467 | |
d0cea5f9 JF |
2468 | } else if (!strcmp(name, "HEAD")) { |
2469 | return OK; | |
2470 | } | |
6706b2ba | 2471 | |
d0cea5f9 JF |
2472 | refs = realloc(refs, sizeof(*refs) * (refs_size + 1)); |
2473 | if (!refs) | |
2474 | return ERR; | |
c34d9c9f | 2475 | |
d0cea5f9 | 2476 | ref = &refs[refs_size++]; |
8b0297ae | 2477 | ref->name = malloc(namelen + 1); |
d0cea5f9 JF |
2478 | if (!ref->name) |
2479 | return ERR; | |
3af8774e | 2480 | |
8b0297ae JF |
2481 | strncpy(ref->name, name, namelen); |
2482 | ref->name[namelen] = 0; | |
d0cea5f9 JF |
2483 | ref->tag = tag; |
2484 | string_copy(ref->id, id); | |
3af8774e | 2485 | |
d0cea5f9 JF |
2486 | return OK; |
2487 | } | |
c34d9c9f | 2488 | |
d0cea5f9 JF |
2489 | static int |
2490 | load_refs(void) | |
2491 | { | |
2492 | const char *cmd_env = getenv("TIG_LS_REMOTE"); | |
2493 | const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE; | |
c34d9c9f | 2494 | |
4a63c884 | 2495 | return read_properties(popen(cmd, "r"), "\t", read_ref); |
d0cea5f9 | 2496 | } |
c34d9c9f | 2497 | |
d0cea5f9 | 2498 | static int |
14c778a6 | 2499 | read_repo_config_option(char *name, int namelen, char *value, int valuelen) |
d0cea5f9 | 2500 | { |
22913179 | 2501 | if (!strcmp(name, "i18n.commitencoding")) |
d0cea5f9 | 2502 | string_copy(opt_encoding, value); |
c34d9c9f | 2503 | |
c34d9c9f JF |
2504 | return OK; |
2505 | } | |
2506 | ||
4670cf89 | 2507 | static int |
14c778a6 | 2508 | load_repo_config(void) |
4670cf89 | 2509 | { |
66749723 | 2510 | return read_properties(popen("git repo-config --list", "r"), |
14c778a6 | 2511 | "=", read_repo_config_option); |
d0cea5f9 JF |
2512 | } |
2513 | ||
2514 | static int | |
4a63c884 | 2515 | read_properties(FILE *pipe, const char *separators, |
d0cea5f9 JF |
2516 | int (*read_property)(char *, int, char *, int)) |
2517 | { | |
4670cf89 JF |
2518 | char buffer[BUFSIZ]; |
2519 | char *name; | |
d0cea5f9 | 2520 | int state = OK; |
4670cf89 JF |
2521 | |
2522 | if (!pipe) | |
2523 | return ERR; | |
2524 | ||
d0cea5f9 | 2525 | while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) { |
4a63c884 JF |
2526 | char *value; |
2527 | size_t namelen; | |
2528 | size_t valuelen; | |
4670cf89 | 2529 | |
4a63c884 JF |
2530 | name = chomp_string(name); |
2531 | namelen = strcspn(name, separators); | |
2532 | ||
2533 | if (name[namelen]) { | |
2534 | name[namelen] = 0; | |
2535 | value = chomp_string(name + namelen + 1); | |
d0cea5f9 | 2536 | valuelen = strlen(value); |
4670cf89 | 2537 | |
d0cea5f9 | 2538 | } else { |
d0cea5f9 JF |
2539 | value = ""; |
2540 | valuelen = 0; | |
4670cf89 | 2541 | } |
d0cea5f9 | 2542 | |
3c3801c2 | 2543 | state = read_property(name, namelen, value, valuelen); |
4670cf89 JF |
2544 | } |
2545 | ||
d0cea5f9 JF |
2546 | if (state != ERR && ferror(pipe)) |
2547 | state = ERR; | |
4670cf89 JF |
2548 | |
2549 | pclose(pipe); | |
2550 | ||
d0cea5f9 | 2551 | return state; |
4670cf89 JF |
2552 | } |
2553 | ||
d0cea5f9 | 2554 | |
6b161b31 JF |
2555 | /* |
2556 | * Main | |
2557 | */ | |
2558 | ||
b5c9e67f | 2559 | static void __NORETURN |
6b161b31 JF |
2560 | quit(int sig) |
2561 | { | |
8855ada4 JF |
2562 | /* XXX: Restore tty modes and let the OS cleanup the rest! */ |
2563 | if (cursed) | |
2564 | endwin(); | |
6b161b31 JF |
2565 | exit(0); |
2566 | } | |
2567 | ||
c6704a4e JF |
2568 | static void __NORETURN |
2569 | die(const char *err, ...) | |
6b161b31 JF |
2570 | { |
2571 | va_list args; | |
2572 | ||
2573 | endwin(); | |
2574 | ||
2575 | va_start(args, err); | |
2576 | fputs("tig: ", stderr); | |
2577 | vfprintf(stderr, err, args); | |
2578 | fputs("\n", stderr); | |
2579 | va_end(args); | |
2580 | ||
2581 | exit(1); | |
2582 | } | |
2583 | ||
2584 | int | |
2585 | main(int argc, char *argv[]) | |
2586 | { | |
1ba2ae4b | 2587 | struct view *view; |
6b161b31 | 2588 | enum request request; |
1ba2ae4b | 2589 | size_t i; |
6b161b31 JF |
2590 | |
2591 | signal(SIGINT, quit); | |
2592 | ||
660e09ad JF |
2593 | if (load_options() == ERR) |
2594 | die("Failed to load user config."); | |
2595 | ||
2596 | /* Load the repo config file so options can be overwritten from | |
afdc35b3 | 2597 | * the command line. */ |
14c778a6 | 2598 | if (load_repo_config() == ERR) |
afdc35b3 JF |
2599 | die("Failed to load repo config."); |
2600 | ||
8855ada4 | 2601 | if (!parse_options(argc, argv)) |
6b161b31 JF |
2602 | return 0; |
2603 | ||
c34d9c9f JF |
2604 | if (load_refs() == ERR) |
2605 | die("Failed to load refs."); | |
2606 | ||
7bb55251 JF |
2607 | /* Require a git repository unless when running in pager mode. */ |
2608 | if (refs_size == 0 && opt_request != REQ_VIEW_PAGER) | |
2609 | die("Not a git repository"); | |
2610 | ||
1ba2ae4b JF |
2611 | for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++) |
2612 | view->cmd_env = getenv(view->cmd_env); | |
2613 | ||
6b161b31 JF |
2614 | request = opt_request; |
2615 | ||
2616 | init_display(); | |
b801d8b2 JF |
2617 | |
2618 | while (view_driver(display[current_view], request)) { | |
6b161b31 | 2619 | int key; |
b801d8b2 JF |
2620 | int i; |
2621 | ||
6b161b31 JF |
2622 | foreach_view (view, i) |
2623 | update_view(view); | |
b801d8b2 JF |
2624 | |
2625 | /* Refresh, accept single keystroke of input */ | |
6b161b31 JF |
2626 | key = wgetch(status_win); |
2627 | request = get_request(key); | |
03a93dbb | 2628 | |
6706b2ba | 2629 | /* Some low-level request handling. This keeps access to |
fac7db6c JF |
2630 | * status_win restricted. */ |
2631 | switch (request) { | |
2632 | case REQ_PROMPT: | |
6908bdbd JF |
2633 | report(":"); |
2634 | /* Temporarily switch to line-oriented and echoed | |
2635 | * input. */ | |
03a93dbb JF |
2636 | nocbreak(); |
2637 | echo(); | |
49f2b43f JF |
2638 | |
2639 | if (wgetnstr(status_win, opt_cmd + 4, sizeof(opt_cmd) - 4) == OK) { | |
2640 | memcpy(opt_cmd, "git ", 4); | |
2641 | opt_request = REQ_VIEW_PAGER; | |
2642 | } else { | |
6a7bb912 JF |
2643 | report("Prompt interrupted by loading view, " |
2644 | "press 'z' to stop loading views"); | |
2645 | request = REQ_SCREEN_UPDATE; | |
49f2b43f JF |
2646 | } |
2647 | ||
6908bdbd JF |
2648 | noecho(); |
2649 | cbreak(); | |
fac7db6c JF |
2650 | break; |
2651 | ||
2652 | case REQ_SCREEN_RESIZE: | |
2653 | { | |
2654 | int height, width; | |
2655 | ||
2656 | getmaxyx(stdscr, height, width); | |
2657 | ||
2658 | /* Resize the status view and let the view driver take | |
2659 | * care of resizing the displayed views. */ | |
2660 | wresize(status_win, 1, width); | |
2661 | mvwin(status_win, height - 1, 0); | |
2662 | wrefresh(status_win); | |
2663 | break; | |
2664 | } | |
2665 | default: | |
2666 | break; | |
03a93dbb | 2667 | } |
b801d8b2 JF |
2668 | } |
2669 | ||
2670 | quit(0); | |
2671 | ||
2672 | return 0; | |
2673 | } |