Commit | Line | Data |
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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 | ||
9256ab05 JF |
620 | #define set_color(color, name) \ |
621 | set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name)) | |
660e09ad | 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 | ||
9256ab05 JF |
634 | #define set_attribute(attr, name) \ |
635 | set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name)) | |
660e09ad | 636 | |
3c3801c2 JF |
637 | static int config_lineno; |
638 | static bool config_errors; | |
639 | static char *config_msg; | |
640 | ||
bca8fcaa JF |
641 | /* Reads |
642 | * | |
643 | * object fgcolor bgcolor [attr] | |
644 | * | |
645 | * from the value string. */ | |
660e09ad | 646 | static int |
9256ab05 | 647 | set_option_color(int argc, char *argv[]) |
660e09ad | 648 | { |
bca8fcaa JF |
649 | struct line_info *info; |
650 | ||
9256ab05 JF |
651 | if (argc != 3 && argc != 4) { |
652 | config_msg = "Wrong number of arguments given to color command"; | |
653 | return ERR; | |
654 | } | |
655 | ||
656 | info = get_line_info(argv[0], strlen(argv[0])); | |
bca8fcaa JF |
657 | if (!info) { |
658 | config_msg = "Unknown color name"; | |
659 | return ERR; | |
660 | } | |
660e09ad | 661 | |
9256ab05 | 662 | if (set_color(&info->fg, argv[1]) == ERR) { |
bca8fcaa JF |
663 | config_msg = "Unknown color"; |
664 | return ERR; | |
665 | } | |
660e09ad | 666 | |
9256ab05 | 667 | if (set_color(&info->bg, argv[2]) == ERR) { |
bca8fcaa JF |
668 | config_msg = "Unknown color"; |
669 | return ERR; | |
670 | } | |
660e09ad | 671 | |
9256ab05 | 672 | if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) { |
bca8fcaa JF |
673 | config_msg = "Unknown attribute"; |
674 | return ERR; | |
660e09ad JF |
675 | } |
676 | ||
bca8fcaa JF |
677 | return OK; |
678 | } | |
679 | ||
680 | static int | |
9256ab05 | 681 | set_option(char *opt, char *value) |
bca8fcaa | 682 | { |
9256ab05 JF |
683 | char *argv[16]; |
684 | int valuelen; | |
685 | int argc = 0; | |
686 | ||
687 | /* Tokenize */ | |
688 | while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) { | |
689 | argv[argc++] = value; | |
690 | ||
691 | value += valuelen; | |
692 | if (!*value) | |
693 | break; | |
694 | ||
695 | *value++ = 0; | |
696 | while (isspace(*value)) | |
697 | value++; | |
698 | } | |
699 | ||
700 | if (!strcmp(opt, "color")) | |
701 | return set_option_color(argc, argv); | |
bca8fcaa | 702 | |
660e09ad JF |
703 | return ERR; |
704 | } | |
705 | ||
706 | static int | |
3c3801c2 JF |
707 | read_option(char *opt, int optlen, char *value, int valuelen) |
708 | { | |
709 | config_lineno++; | |
710 | config_msg = "Internal error"; | |
711 | ||
712 | optlen = strcspn(opt, "#;"); | |
713 | if (optlen == 0) { | |
714 | /* The whole line is a commend or empty. */ | |
715 | return OK; | |
716 | ||
717 | } else if (opt[optlen] != 0) { | |
718 | /* Part of the option name is a comment, so the value part | |
719 | * should be ignored. */ | |
720 | valuelen = 0; | |
721 | opt[optlen] = value[valuelen] = 0; | |
722 | } else { | |
723 | /* Else look for comment endings in the value. */ | |
724 | valuelen = strcspn(value, "#;"); | |
725 | value[valuelen] = 0; | |
726 | } | |
727 | ||
9256ab05 | 728 | if (set_option(opt, value) == ERR) { |
3c3801c2 JF |
729 | fprintf(stderr, "Error on line %d, near '%.*s' option: %s\n", |
730 | config_lineno, optlen, opt, config_msg); | |
731 | config_errors = TRUE; | |
732 | } | |
733 | ||
734 | /* Always keep going if errors are encountered. */ | |
735 | return OK; | |
736 | } | |
737 | ||
738 | static int | |
660e09ad JF |
739 | load_options(void) |
740 | { | |
741 | char *home = getenv("HOME"); | |
742 | char buf[1024]; | |
743 | FILE *file; | |
744 | ||
3c3801c2 JF |
745 | config_lineno = 0; |
746 | config_errors = FALSE; | |
747 | ||
cc2d1364 | 748 | if (!home || !string_format(buf, "%s/.tigrc", home)) |
660e09ad JF |
749 | return ERR; |
750 | ||
751 | /* It's ok that the file doesn't exist. */ | |
752 | file = fopen(buf, "r"); | |
753 | if (!file) | |
754 | return OK; | |
755 | ||
3c3801c2 JF |
756 | if (read_properties(file, " \t", read_option) == ERR || |
757 | config_errors == TRUE) | |
758 | fprintf(stderr, "Errors while loading %s.\n", buf); | |
759 | ||
760 | return OK; | |
660e09ad JF |
761 | } |
762 | ||
763 | ||
d839253b | 764 | /* |
468876c9 | 765 | * The viewer |
d839253b | 766 | */ |
c2124ccd JF |
767 | |
768 | struct view; | |
fe7233c3 | 769 | struct view_ops; |
c2124ccd JF |
770 | |
771 | /* The display array of active views and the index of the current view. */ | |
772 | static struct view *display[2]; | |
773 | static unsigned int current_view; | |
774 | ||
775 | #define foreach_view(view, i) \ | |
776 | for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++) | |
777 | ||
9f41488f | 778 | #define displayed_views() (display[1] != NULL ? 2 : 1) |
c2124ccd | 779 | |
d839253b | 780 | /* Current head and commit ID */ |
c2124ccd JF |
781 | static char ref_commit[SIZEOF_REF] = "HEAD"; |
782 | static char ref_head[SIZEOF_REF] = "HEAD"; | |
783 | ||
b801d8b2 | 784 | struct view { |
03a93dbb | 785 | const char *name; /* View name */ |
4685845e TH |
786 | const char *cmd_fmt; /* Default command line format */ |
787 | const char *cmd_env; /* Command line set via environment */ | |
788 | const char *id; /* Points to either of ref_{head,commit} */ | |
6b161b31 | 789 | |
fe7233c3 | 790 | struct view_ops *ops; /* View operations */ |
22f66b0a | 791 | |
03a93dbb | 792 | char cmd[SIZEOF_CMD]; /* Command buffer */ |
49f2b43f JF |
793 | char ref[SIZEOF_REF]; /* Hovered commit reference */ |
794 | char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */ | |
2e8488b4 | 795 | |
8855ada4 JF |
796 | int height, width; /* The width and height of the main window */ |
797 | WINDOW *win; /* The main window */ | |
798 | WINDOW *title; /* The title window living below the main window */ | |
b801d8b2 JF |
799 | |
800 | /* Navigation */ | |
801 | unsigned long offset; /* Offset of the window top */ | |
802 | unsigned long lineno; /* Current line number */ | |
803 | ||
f6da0b66 JF |
804 | /* If non-NULL, points to the view that opened this view. If this view |
805 | * is closed tig will switch back to the parent view. */ | |
806 | struct view *parent; | |
807 | ||
b801d8b2 JF |
808 | /* Buffering */ |
809 | unsigned long lines; /* Total number of lines */ | |
fe7233c3 | 810 | struct line *line; /* Line index */ |
e2c01617 | 811 | unsigned long line_size;/* Total number of allocated lines */ |
8855ada4 | 812 | unsigned int digits; /* Number of digits in the lines member. */ |
b801d8b2 JF |
813 | |
814 | /* Loading */ | |
815 | FILE *pipe; | |
2e8488b4 | 816 | time_t start_time; |
b801d8b2 JF |
817 | }; |
818 | ||
fe7233c3 JF |
819 | struct view_ops { |
820 | /* What type of content being displayed. Used in the title bar. */ | |
821 | const char *type; | |
822 | /* Draw one line; @lineno must be < view->height. */ | |
823 | bool (*draw)(struct view *view, struct line *line, unsigned int lineno); | |
824 | /* Read one line; updates view->line. */ | |
701e4f5d | 825 | bool (*read)(struct view *view, char *data); |
fe7233c3 JF |
826 | /* Depending on view, change display based on current line. */ |
827 | bool (*enter)(struct view *view, struct line *line); | |
828 | }; | |
829 | ||
6b161b31 JF |
830 | static struct view_ops pager_ops; |
831 | static struct view_ops main_ops; | |
a28bcc22 | 832 | |
95d7ddcd JF |
833 | #define VIEW_STR(name, cmd, env, ref, ops) \ |
834 | { name, cmd, #env, ref, ops } | |
1ba2ae4b | 835 | |
95d7ddcd JF |
836 | #define VIEW_(id, name, ops, ref) \ |
837 | VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops) | |
1ba2ae4b | 838 | |
c2124ccd | 839 | |
b801d8b2 | 840 | static struct view views[] = { |
95d7ddcd JF |
841 | VIEW_(MAIN, "main", &main_ops, ref_head), |
842 | VIEW_(DIFF, "diff", &pager_ops, ref_commit), | |
843 | VIEW_(LOG, "log", &pager_ops, ref_head), | |
844 | VIEW_(HELP, "help", &pager_ops, "static"), | |
845 | VIEW_(PAGER, "pager", &pager_ops, "static"), | |
b801d8b2 JF |
846 | }; |
847 | ||
a28bcc22 JF |
848 | #define VIEW(req) (&views[(req) - REQ_OFFSET - 1]) |
849 | ||
4c6fabc2 | 850 | |
fe7233c3 JF |
851 | static bool |
852 | draw_view_line(struct view *view, unsigned int lineno) | |
853 | { | |
854 | if (view->offset + lineno >= view->lines) | |
855 | return FALSE; | |
856 | ||
857 | return view->ops->draw(view, &view->line[view->offset + lineno], lineno); | |
858 | } | |
859 | ||
b801d8b2 | 860 | static void |
82e78006 | 861 | redraw_view_from(struct view *view, int lineno) |
b801d8b2 | 862 | { |
82e78006 | 863 | assert(0 <= lineno && lineno < view->height); |
b801d8b2 | 864 | |
82e78006 | 865 | for (; lineno < view->height; lineno++) { |
fe7233c3 | 866 | if (!draw_view_line(view, lineno)) |
fd85fef1 | 867 | break; |
b801d8b2 JF |
868 | } |
869 | ||
870 | redrawwin(view->win); | |
871 | wrefresh(view->win); | |
872 | } | |
873 | ||
b76c2afc | 874 | static void |
82e78006 JF |
875 | redraw_view(struct view *view) |
876 | { | |
877 | wclear(view->win); | |
878 | redraw_view_from(view, 0); | |
879 | } | |
880 | ||
c2124ccd | 881 | |
6b161b31 | 882 | static void |
81030ec8 JF |
883 | update_view_title(struct view *view) |
884 | { | |
885 | if (view == display[current_view]) | |
886 | wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS)); | |
887 | else | |
888 | wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR)); | |
889 | ||
890 | werase(view->title); | |
891 | wmove(view->title, 0, 0); | |
892 | ||
81030ec8 JF |
893 | if (*view->ref) |
894 | wprintw(view->title, "[%s] %s", view->name, view->ref); | |
895 | else | |
896 | wprintw(view->title, "[%s]", view->name); | |
897 | ||
c19f8017 | 898 | if (view->lines || view->pipe) { |
6d9c07af | 899 | unsigned int view_lines = view->offset + view->height; |
c19f8017 | 900 | unsigned int lines = view->lines |
6d9c07af | 901 | ? MIN(view_lines, view->lines) * 100 / view->lines |
c19f8017 JF |
902 | : 0; |
903 | ||
81030ec8 JF |
904 | wprintw(view->title, " - %s %d of %d (%d%%)", |
905 | view->ops->type, | |
906 | view->lineno + 1, | |
907 | view->lines, | |
c19f8017 | 908 | lines); |
81030ec8 JF |
909 | } |
910 | ||
f97f4012 JF |
911 | if (view->pipe) { |
912 | time_t secs = time(NULL) - view->start_time; | |
913 | ||
914 | /* Three git seconds are a long time ... */ | |
915 | if (secs > 2) | |
916 | wprintw(view->title, " %lds", secs); | |
917 | } | |
918 | ||
976447f8 | 919 | wmove(view->title, 0, view->width - 1); |
81030ec8 JF |
920 | wrefresh(view->title); |
921 | } | |
922 | ||
923 | static void | |
6b161b31 | 924 | resize_display(void) |
b76c2afc | 925 | { |
03a93dbb | 926 | int offset, i; |
6b161b31 JF |
927 | struct view *base = display[0]; |
928 | struct view *view = display[1] ? display[1] : display[0]; | |
b76c2afc | 929 | |
6b161b31 | 930 | /* Setup window dimensions */ |
b76c2afc | 931 | |
03a93dbb | 932 | getmaxyx(stdscr, base->height, base->width); |
b76c2afc | 933 | |
6b161b31 | 934 | /* Make room for the status window. */ |
03a93dbb | 935 | base->height -= 1; |
6b161b31 JF |
936 | |
937 | if (view != base) { | |
03a93dbb JF |
938 | /* Horizontal split. */ |
939 | view->width = base->width; | |
6b161b31 JF |
940 | view->height = SCALE_SPLIT_VIEW(base->height); |
941 | base->height -= view->height; | |
942 | ||
943 | /* Make room for the title bar. */ | |
944 | view->height -= 1; | |
945 | } | |
946 | ||
947 | /* Make room for the title bar. */ | |
948 | base->height -= 1; | |
949 | ||
950 | offset = 0; | |
951 | ||
952 | foreach_view (view, i) { | |
b76c2afc | 953 | if (!view->win) { |
c19f8017 | 954 | view->win = newwin(view->height, 0, offset, 0); |
6b161b31 JF |
955 | if (!view->win) |
956 | die("Failed to create %s view", view->name); | |
957 | ||
958 | scrollok(view->win, TRUE); | |
959 | ||
960 | view->title = newwin(1, 0, offset + view->height, 0); | |
961 | if (!view->title) | |
962 | die("Failed to create title window"); | |
963 | ||
964 | } else { | |
c19f8017 | 965 | wresize(view->win, view->height, view->width); |
6b161b31 JF |
966 | mvwin(view->win, offset, 0); |
967 | mvwin(view->title, offset + view->height, 0); | |
a28bcc22 | 968 | } |
a28bcc22 | 969 | |
6b161b31 | 970 | offset += view->height + 1; |
b76c2afc | 971 | } |
6b161b31 | 972 | } |
b76c2afc | 973 | |
6b161b31 | 974 | static void |
20bb5e18 JF |
975 | redraw_display(void) |
976 | { | |
977 | struct view *view; | |
978 | int i; | |
979 | ||
980 | foreach_view (view, i) { | |
981 | redraw_view(view); | |
982 | update_view_title(view); | |
983 | } | |
984 | } | |
985 | ||
85af6284 JF |
986 | static void |
987 | update_display_cursor(void) | |
988 | { | |
989 | struct view *view = display[current_view]; | |
990 | ||
991 | /* Move the cursor to the right-most column of the cursor line. | |
992 | * | |
993 | * XXX: This could turn out to be a bit expensive, but it ensures that | |
994 | * the cursor does not jump around. */ | |
995 | if (view->lines) { | |
996 | wmove(view->win, view->lineno - view->offset, view->width - 1); | |
997 | wrefresh(view->win); | |
998 | } | |
999 | } | |
20bb5e18 | 1000 | |
2e8488b4 JF |
1001 | /* |
1002 | * Navigation | |
1003 | */ | |
1004 | ||
4a2909a7 | 1005 | /* Scrolling backend */ |
b801d8b2 | 1006 | static void |
b3a54cba | 1007 | do_scroll_view(struct view *view, int lines, bool redraw) |
b801d8b2 | 1008 | { |
fd85fef1 JF |
1009 | /* The rendering expects the new offset. */ |
1010 | view->offset += lines; | |
1011 | ||
1012 | assert(0 <= view->offset && view->offset < view->lines); | |
1013 | assert(lines); | |
b801d8b2 | 1014 | |
82e78006 | 1015 | /* Redraw the whole screen if scrolling is pointless. */ |
4c6fabc2 | 1016 | if (view->height < ABS(lines)) { |
b76c2afc JF |
1017 | redraw_view(view); |
1018 | ||
1019 | } else { | |
22f66b0a | 1020 | int line = lines > 0 ? view->height - lines : 0; |
82e78006 | 1021 | int end = line + ABS(lines); |
fd85fef1 JF |
1022 | |
1023 | wscrl(view->win, lines); | |
1024 | ||
22f66b0a | 1025 | for (; line < end; line++) { |
fe7233c3 | 1026 | if (!draw_view_line(view, line)) |
fd85fef1 JF |
1027 | break; |
1028 | } | |
1029 | } | |
1030 | ||
1031 | /* Move current line into the view. */ | |
1032 | if (view->lineno < view->offset) { | |
1033 | view->lineno = view->offset; | |
fe7233c3 | 1034 | draw_view_line(view, 0); |
fd85fef1 JF |
1035 | |
1036 | } else if (view->lineno >= view->offset + view->height) { | |
6706b2ba JF |
1037 | if (view->lineno == view->offset + view->height) { |
1038 | /* Clear the hidden line so it doesn't show if the view | |
1039 | * is scrolled up. */ | |
1040 | wmove(view->win, view->height, 0); | |
1041 | wclrtoeol(view->win); | |
1042 | } | |
fd85fef1 | 1043 | view->lineno = view->offset + view->height - 1; |
fe7233c3 | 1044 | draw_view_line(view, view->lineno - view->offset); |
fd85fef1 JF |
1045 | } |
1046 | ||
4c6fabc2 | 1047 | assert(view->offset <= view->lineno && view->lineno < view->lines); |
fd85fef1 | 1048 | |
b3a54cba JF |
1049 | if (!redraw) |
1050 | return; | |
1051 | ||
fd85fef1 JF |
1052 | redrawwin(view->win); |
1053 | wrefresh(view->win); | |
9d3f5834 | 1054 | report(""); |
fd85fef1 | 1055 | } |
78c70acd | 1056 | |
4a2909a7 | 1057 | /* Scroll frontend */ |
fd85fef1 | 1058 | static void |
6b161b31 | 1059 | scroll_view(struct view *view, enum request request) |
fd85fef1 JF |
1060 | { |
1061 | int lines = 1; | |
b801d8b2 JF |
1062 | |
1063 | switch (request) { | |
4a2909a7 | 1064 | case REQ_SCROLL_PAGE_DOWN: |
fd85fef1 | 1065 | lines = view->height; |
4a2909a7 | 1066 | case REQ_SCROLL_LINE_DOWN: |
b801d8b2 | 1067 | if (view->offset + lines > view->lines) |
bde3653a | 1068 | lines = view->lines - view->offset; |
b801d8b2 | 1069 | |
fd85fef1 | 1070 | if (lines == 0 || view->offset + view->height >= view->lines) { |
eb98559e | 1071 | report("Cannot scroll beyond the last line"); |
b801d8b2 JF |
1072 | return; |
1073 | } | |
1074 | break; | |
1075 | ||
4a2909a7 | 1076 | case REQ_SCROLL_PAGE_UP: |
fd85fef1 | 1077 | lines = view->height; |
4a2909a7 | 1078 | case REQ_SCROLL_LINE_UP: |
b801d8b2 JF |
1079 | if (lines > view->offset) |
1080 | lines = view->offset; | |
1081 | ||
1082 | if (lines == 0) { | |
eb98559e | 1083 | report("Cannot scroll beyond the first line"); |
b801d8b2 JF |
1084 | return; |
1085 | } | |
1086 | ||
fd85fef1 | 1087 | lines = -lines; |
b801d8b2 | 1088 | break; |
03a93dbb | 1089 | |
6b161b31 JF |
1090 | default: |
1091 | die("request %d not handled in switch", request); | |
b801d8b2 JF |
1092 | } |
1093 | ||
b3a54cba | 1094 | do_scroll_view(view, lines, TRUE); |
fd85fef1 | 1095 | } |
b801d8b2 | 1096 | |
4a2909a7 | 1097 | /* Cursor moving */ |
fd85fef1 | 1098 | static void |
b3a54cba | 1099 | move_view(struct view *view, enum request request, bool redraw) |
fd85fef1 JF |
1100 | { |
1101 | int steps; | |
b801d8b2 | 1102 | |
fd85fef1 | 1103 | switch (request) { |
4a2909a7 | 1104 | case REQ_MOVE_FIRST_LINE: |
78c70acd JF |
1105 | steps = -view->lineno; |
1106 | break; | |
1107 | ||
4a2909a7 | 1108 | case REQ_MOVE_LAST_LINE: |
78c70acd JF |
1109 | steps = view->lines - view->lineno - 1; |
1110 | break; | |
1111 | ||
4a2909a7 | 1112 | case REQ_MOVE_PAGE_UP: |
78c70acd JF |
1113 | steps = view->height > view->lineno |
1114 | ? -view->lineno : -view->height; | |
1115 | break; | |
1116 | ||
4a2909a7 | 1117 | case REQ_MOVE_PAGE_DOWN: |
78c70acd JF |
1118 | steps = view->lineno + view->height >= view->lines |
1119 | ? view->lines - view->lineno - 1 : view->height; | |
1120 | break; | |
1121 | ||
4a2909a7 | 1122 | case REQ_MOVE_UP: |
fd85fef1 JF |
1123 | steps = -1; |
1124 | break; | |
b801d8b2 | 1125 | |
4a2909a7 | 1126 | case REQ_MOVE_DOWN: |
fd85fef1 JF |
1127 | steps = 1; |
1128 | break; | |
6b161b31 JF |
1129 | |
1130 | default: | |
1131 | die("request %d not handled in switch", request); | |
78c70acd | 1132 | } |
b801d8b2 | 1133 | |
4c6fabc2 | 1134 | if (steps <= 0 && view->lineno == 0) { |
eb98559e | 1135 | report("Cannot move beyond the first line"); |
78c70acd | 1136 | return; |
b801d8b2 | 1137 | |
6908bdbd | 1138 | } else if (steps >= 0 && view->lineno + 1 >= view->lines) { |
eb98559e | 1139 | report("Cannot move beyond the last line"); |
78c70acd | 1140 | return; |
fd85fef1 JF |
1141 | } |
1142 | ||
4c6fabc2 | 1143 | /* Move the current line */ |
fd85fef1 | 1144 | view->lineno += steps; |
4c6fabc2 JF |
1145 | assert(0 <= view->lineno && view->lineno < view->lines); |
1146 | ||
1147 | /* Repaint the old "current" line if we be scrolling */ | |
2e8488b4 JF |
1148 | if (ABS(steps) < view->height) { |
1149 | int prev_lineno = view->lineno - steps - view->offset; | |
1150 | ||
1151 | wmove(view->win, prev_lineno, 0); | |
1152 | wclrtoeol(view->win); | |
fe7233c3 | 1153 | draw_view_line(view, prev_lineno); |
2e8488b4 | 1154 | } |
fd85fef1 | 1155 | |
4c6fabc2 | 1156 | /* Check whether the view needs to be scrolled */ |
fd85fef1 JF |
1157 | if (view->lineno < view->offset || |
1158 | view->lineno >= view->offset + view->height) { | |
1159 | if (steps < 0 && -steps > view->offset) { | |
1160 | steps = -view->offset; | |
b76c2afc JF |
1161 | |
1162 | } else if (steps > 0) { | |
1163 | if (view->lineno == view->lines - 1 && | |
1164 | view->lines > view->height) { | |
1165 | steps = view->lines - view->offset - 1; | |
1166 | if (steps >= view->height) | |
1167 | steps -= view->height - 1; | |
1168 | } | |
b801d8b2 | 1169 | } |
78c70acd | 1170 | |
b3a54cba | 1171 | do_scroll_view(view, steps, redraw); |
fd85fef1 | 1172 | return; |
b801d8b2 JF |
1173 | } |
1174 | ||
4c6fabc2 | 1175 | /* Draw the current line */ |
fe7233c3 | 1176 | draw_view_line(view, view->lineno - view->offset); |
fd85fef1 | 1177 | |
b3a54cba JF |
1178 | if (!redraw) |
1179 | return; | |
1180 | ||
b801d8b2 JF |
1181 | redrawwin(view->win); |
1182 | wrefresh(view->win); | |
9d3f5834 | 1183 | report(""); |
b801d8b2 JF |
1184 | } |
1185 | ||
b801d8b2 | 1186 | |
2e8488b4 JF |
1187 | /* |
1188 | * Incremental updating | |
1189 | */ | |
b801d8b2 | 1190 | |
199d1288 JF |
1191 | static void |
1192 | end_update(struct view *view) | |
1193 | { | |
1194 | if (!view->pipe) | |
1195 | return; | |
1196 | set_nonblocking_input(FALSE); | |
1197 | if (view->pipe == stdin) | |
1198 | fclose(view->pipe); | |
1199 | else | |
1200 | pclose(view->pipe); | |
1201 | view->pipe = NULL; | |
1202 | } | |
1203 | ||
03a93dbb | 1204 | static bool |
b801d8b2 JF |
1205 | begin_update(struct view *view) |
1206 | { | |
4685845e | 1207 | const char *id = view->id; |
fd85fef1 | 1208 | |
199d1288 JF |
1209 | if (view->pipe) |
1210 | end_update(view); | |
1211 | ||
03a93dbb JF |
1212 | if (opt_cmd[0]) { |
1213 | string_copy(view->cmd, opt_cmd); | |
1214 | opt_cmd[0] = 0; | |
8855ada4 JF |
1215 | /* When running random commands, the view ref could have become |
1216 | * invalid so clear it. */ | |
1217 | view->ref[0] = 0; | |
03a93dbb | 1218 | } else { |
4685845e | 1219 | const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt; |
1ba2ae4b | 1220 | |
cc2d1364 | 1221 | if (!string_format(view->cmd, format, id, id, id, id, id)) |
03a93dbb JF |
1222 | return FALSE; |
1223 | } | |
b801d8b2 | 1224 | |
6908bdbd JF |
1225 | /* Special case for the pager view. */ |
1226 | if (opt_pipe) { | |
1227 | view->pipe = opt_pipe; | |
1228 | opt_pipe = NULL; | |
1229 | } else { | |
1230 | view->pipe = popen(view->cmd, "r"); | |
1231 | } | |
1232 | ||
2e8488b4 JF |
1233 | if (!view->pipe) |
1234 | return FALSE; | |
b801d8b2 | 1235 | |
6b161b31 | 1236 | set_nonblocking_input(TRUE); |
b801d8b2 JF |
1237 | |
1238 | view->offset = 0; | |
1239 | view->lines = 0; | |
1240 | view->lineno = 0; | |
49f2b43f | 1241 | string_copy(view->vid, id); |
b801d8b2 | 1242 | |
2e8488b4 JF |
1243 | if (view->line) { |
1244 | int i; | |
1245 | ||
1246 | for (i = 0; i < view->lines; i++) | |
fe7233c3 JF |
1247 | if (view->line[i].data) |
1248 | free(view->line[i].data); | |
2e8488b4 JF |
1249 | |
1250 | free(view->line); | |
1251 | view->line = NULL; | |
1252 | } | |
1253 | ||
1254 | view->start_time = time(NULL); | |
1255 | ||
b801d8b2 JF |
1256 | return TRUE; |
1257 | } | |
1258 | ||
e2c01617 JF |
1259 | static struct line * |
1260 | realloc_lines(struct view *view, size_t line_size) | |
1261 | { | |
1262 | struct line *tmp = realloc(view->line, sizeof(*view->line) * line_size); | |
1263 | ||
1264 | if (!tmp) | |
1265 | return NULL; | |
1266 | ||
1267 | view->line = tmp; | |
1268 | view->line_size = line_size; | |
1269 | return view->line; | |
1270 | } | |
1271 | ||
03a93dbb | 1272 | static bool |
b801d8b2 JF |
1273 | update_view(struct view *view) |
1274 | { | |
1275 | char buffer[BUFSIZ]; | |
1276 | char *line; | |
82e78006 JF |
1277 | /* The number of lines to read. If too low it will cause too much |
1278 | * redrawing (and possible flickering), if too high responsiveness | |
1279 | * will suffer. */ | |
8855ada4 | 1280 | unsigned long lines = view->height; |
82e78006 | 1281 | int redraw_from = -1; |
b801d8b2 JF |
1282 | |
1283 | if (!view->pipe) | |
1284 | return TRUE; | |
1285 | ||
82e78006 JF |
1286 | /* Only redraw if lines are visible. */ |
1287 | if (view->offset + view->height >= view->lines) | |
1288 | redraw_from = view->lines - view->offset; | |
b801d8b2 | 1289 | |
e2c01617 | 1290 | if (!realloc_lines(view, view->lines + lines)) |
b801d8b2 JF |
1291 | goto alloc_error; |
1292 | ||
b801d8b2 | 1293 | while ((line = fgets(buffer, sizeof(buffer), view->pipe))) { |
c34d9c9f | 1294 | int linelen = strlen(line); |
b801d8b2 | 1295 | |
b801d8b2 JF |
1296 | if (linelen) |
1297 | line[linelen - 1] = 0; | |
1298 | ||
701e4f5d | 1299 | if (!view->ops->read(view, line)) |
b801d8b2 | 1300 | goto alloc_error; |
fd85fef1 JF |
1301 | |
1302 | if (lines-- == 1) | |
1303 | break; | |
b801d8b2 JF |
1304 | } |
1305 | ||
8855ada4 JF |
1306 | { |
1307 | int digits; | |
1308 | ||
1309 | lines = view->lines; | |
1310 | for (digits = 0; lines; digits++) | |
1311 | lines /= 10; | |
1312 | ||
1313 | /* Keep the displayed view in sync with line number scaling. */ | |
1314 | if (digits != view->digits) { | |
1315 | view->digits = digits; | |
1316 | redraw_from = 0; | |
1317 | } | |
1318 | } | |
1319 | ||
82e78006 JF |
1320 | if (redraw_from >= 0) { |
1321 | /* If this is an incremental update, redraw the previous line | |
a28bcc22 JF |
1322 | * since for commits some members could have changed when |
1323 | * loading the main view. */ | |
82e78006 JF |
1324 | if (redraw_from > 0) |
1325 | redraw_from--; | |
1326 | ||
1327 | /* Incrementally draw avoids flickering. */ | |
1328 | redraw_view_from(view, redraw_from); | |
4c6fabc2 | 1329 | } |
b801d8b2 | 1330 | |
eb98559e JF |
1331 | /* Update the title _after_ the redraw so that if the redraw picks up a |
1332 | * commit reference in view->ref it'll be available here. */ | |
1333 | update_view_title(view); | |
1334 | ||
b801d8b2 | 1335 | if (ferror(view->pipe)) { |
03a93dbb | 1336 | report("Failed to read: %s", strerror(errno)); |
b801d8b2 JF |
1337 | goto end; |
1338 | ||
1339 | } else if (feof(view->pipe)) { | |
f97f4012 | 1340 | report(""); |
b801d8b2 JF |
1341 | goto end; |
1342 | } | |
1343 | ||
1344 | return TRUE; | |
1345 | ||
1346 | alloc_error: | |
2e8488b4 | 1347 | report("Allocation failure"); |
b801d8b2 JF |
1348 | |
1349 | end: | |
1350 | end_update(view); | |
1351 | return FALSE; | |
1352 | } | |
1353 | ||
49f2b43f JF |
1354 | enum open_flags { |
1355 | OPEN_DEFAULT = 0, /* Use default view switching. */ | |
1356 | OPEN_SPLIT = 1, /* Split current view. */ | |
1357 | OPEN_BACKGROUNDED = 2, /* Backgrounded. */ | |
1358 | OPEN_RELOAD = 4, /* Reload view even if it is the current. */ | |
1359 | }; | |
1360 | ||
6b161b31 | 1361 | static void |
49f2b43f | 1362 | open_view(struct view *prev, enum request request, enum open_flags flags) |
b801d8b2 | 1363 | { |
49f2b43f JF |
1364 | bool backgrounded = !!(flags & OPEN_BACKGROUNDED); |
1365 | bool split = !!(flags & OPEN_SPLIT); | |
1366 | bool reload = !!(flags & OPEN_RELOAD); | |
a28bcc22 | 1367 | struct view *view = VIEW(request); |
9f41488f | 1368 | int nviews = displayed_views(); |
6e950a52 | 1369 | struct view *base_view = display[0]; |
b801d8b2 | 1370 | |
49f2b43f | 1371 | if (view == prev && nviews == 1 && !reload) { |
6b161b31 JF |
1372 | report("Already in %s view", view->name); |
1373 | return; | |
1374 | } | |
b801d8b2 | 1375 | |
2509b112 JF |
1376 | if (view == VIEW(REQ_VIEW_HELP)) { |
1377 | load_help_page(); | |
1378 | ||
1379 | } else if ((reload || strcmp(view->vid, view->id)) && | |
1380 | !begin_update(view)) { | |
6b161b31 JF |
1381 | report("Failed to load %s view", view->name); |
1382 | return; | |
1383 | } | |
a28bcc22 | 1384 | |
6b161b31 | 1385 | if (split) { |
8d741c06 | 1386 | display[1] = view; |
6b161b31 | 1387 | if (!backgrounded) |
8d741c06 | 1388 | current_view = 1; |
6b161b31 JF |
1389 | } else { |
1390 | /* Maximize the current view. */ | |
1391 | memset(display, 0, sizeof(display)); | |
1392 | current_view = 0; | |
1393 | display[current_view] = view; | |
a28bcc22 | 1394 | } |
b801d8b2 | 1395 | |
6e950a52 JF |
1396 | /* Resize the view when switching between split- and full-screen, |
1397 | * or when switching between two different full-screen views. */ | |
1398 | if (nviews != displayed_views() || | |
1399 | (nviews == 1 && base_view != display[0])) | |
a006db63 | 1400 | resize_display(); |
b801d8b2 | 1401 | |
a8891802 | 1402 | if (split && prev->lineno - prev->offset >= prev->height) { |
03a93dbb | 1403 | /* Take the title line into account. */ |
eb98559e | 1404 | int lines = prev->lineno - prev->offset - prev->height + 1; |
03a93dbb JF |
1405 | |
1406 | /* Scroll the view that was split if the current line is | |
1407 | * outside the new limited view. */ | |
b3a54cba | 1408 | do_scroll_view(prev, lines, TRUE); |
03a93dbb JF |
1409 | } |
1410 | ||
6b161b31 | 1411 | if (prev && view != prev) { |
9b995f0c | 1412 | if (split && !backgrounded) { |
f0b3ab80 JF |
1413 | /* "Blur" the previous view. */ |
1414 | update_view_title(prev); | |
9f396969 | 1415 | } |
f0b3ab80 | 1416 | |
f6da0b66 | 1417 | view->parent = prev; |
b801d8b2 JF |
1418 | } |
1419 | ||
9f396969 | 1420 | if (view->pipe && view->lines == 0) { |
03a93dbb JF |
1421 | /* Clear the old view and let the incremental updating refill |
1422 | * the screen. */ | |
1423 | wclear(view->win); | |
f97f4012 | 1424 | report(""); |
03a93dbb JF |
1425 | } else { |
1426 | redraw_view(view); | |
24b5b3e0 | 1427 | report(""); |
03a93dbb | 1428 | } |
6706b2ba JF |
1429 | |
1430 | /* If the view is backgrounded the above calls to report() | |
1431 | * won't redraw the view title. */ | |
1432 | if (backgrounded) | |
1433 | update_view_title(view); | |
b801d8b2 JF |
1434 | } |
1435 | ||
1436 | ||
6b161b31 JF |
1437 | /* |
1438 | * User request switch noodle | |
1439 | */ | |
1440 | ||
b801d8b2 | 1441 | static int |
6b161b31 | 1442 | view_driver(struct view *view, enum request request) |
b801d8b2 | 1443 | { |
b801d8b2 JF |
1444 | int i; |
1445 | ||
1446 | switch (request) { | |
4a2909a7 JF |
1447 | case REQ_MOVE_UP: |
1448 | case REQ_MOVE_DOWN: | |
1449 | case REQ_MOVE_PAGE_UP: | |
1450 | case REQ_MOVE_PAGE_DOWN: | |
1451 | case REQ_MOVE_FIRST_LINE: | |
1452 | case REQ_MOVE_LAST_LINE: | |
b3a54cba | 1453 | move_view(view, request, TRUE); |
fd85fef1 JF |
1454 | break; |
1455 | ||
4a2909a7 JF |
1456 | case REQ_SCROLL_LINE_DOWN: |
1457 | case REQ_SCROLL_LINE_UP: | |
1458 | case REQ_SCROLL_PAGE_DOWN: | |
1459 | case REQ_SCROLL_PAGE_UP: | |
a28bcc22 | 1460 | scroll_view(view, request); |
b801d8b2 JF |
1461 | break; |
1462 | ||
4a2909a7 | 1463 | case REQ_VIEW_MAIN: |
4a2909a7 | 1464 | case REQ_VIEW_DIFF: |
2e8488b4 JF |
1465 | case REQ_VIEW_LOG: |
1466 | case REQ_VIEW_HELP: | |
6908bdbd | 1467 | case REQ_VIEW_PAGER: |
49f2b43f | 1468 | open_view(view, request, OPEN_DEFAULT); |
b801d8b2 JF |
1469 | break; |
1470 | ||
b3a54cba JF |
1471 | case REQ_NEXT: |
1472 | case REQ_PREVIOUS: | |
1473 | request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP; | |
1474 | ||
1475 | if (view == VIEW(REQ_VIEW_DIFF) && | |
1476 | view->parent == VIEW(REQ_VIEW_MAIN)) { | |
f0b3ab80 | 1477 | bool redraw = display[1] == view; |
b3a54cba JF |
1478 | |
1479 | view = view->parent; | |
1480 | move_view(view, request, redraw); | |
f0b3ab80 JF |
1481 | if (redraw) |
1482 | update_view_title(view); | |
b3a54cba JF |
1483 | } else { |
1484 | move_view(view, request, TRUE); | |
1485 | break; | |
1486 | } | |
6706b2ba JF |
1487 | /* Fall-through */ |
1488 | ||
6b161b31 | 1489 | case REQ_ENTER: |
6908bdbd JF |
1490 | if (!view->lines) { |
1491 | report("Nothing to enter"); | |
1492 | break; | |
1493 | } | |
fe7233c3 | 1494 | return view->ops->enter(view, &view->line[view->lineno]); |
6b161b31 | 1495 | |
03a93dbb JF |
1496 | case REQ_VIEW_NEXT: |
1497 | { | |
9f41488f | 1498 | int nviews = displayed_views(); |
03a93dbb JF |
1499 | int next_view = (current_view + 1) % nviews; |
1500 | ||
1501 | if (next_view == current_view) { | |
1502 | report("Only one view is displayed"); | |
1503 | break; | |
1504 | } | |
1505 | ||
1506 | current_view = next_view; | |
1507 | /* Blur out the title of the previous view. */ | |
1508 | update_view_title(view); | |
6734f6b9 | 1509 | report(""); |
03a93dbb JF |
1510 | break; |
1511 | } | |
24b5b3e0 | 1512 | case REQ_TOGGLE_LINENO: |
b76c2afc | 1513 | opt_line_number = !opt_line_number; |
20bb5e18 | 1514 | redraw_display(); |
b801d8b2 JF |
1515 | break; |
1516 | ||
54efb62b JF |
1517 | case REQ_TOGGLE_REV_GRAPH: |
1518 | opt_rev_graph = !opt_rev_graph; | |
1519 | redraw_display(); | |
1520 | break; | |
1521 | ||
03a93dbb | 1522 | case REQ_PROMPT: |
8855ada4 | 1523 | /* Always reload^Wrerun commands from the prompt. */ |
49f2b43f | 1524 | open_view(view, opt_request, OPEN_RELOAD); |
03a93dbb JF |
1525 | break; |
1526 | ||
4a2909a7 | 1527 | case REQ_STOP_LOADING: |
59a45d3a JF |
1528 | for (i = 0; i < ARRAY_SIZE(views); i++) { |
1529 | view = &views[i]; | |
2e8488b4 | 1530 | if (view->pipe) |
6a7bb912 | 1531 | report("Stopped loading the %s view", view->name), |
03a93dbb JF |
1532 | end_update(view); |
1533 | } | |
b801d8b2 JF |
1534 | break; |
1535 | ||
4a2909a7 | 1536 | case REQ_SHOW_VERSION: |
6cb291b7 | 1537 | report("%s (built %s)", VERSION, __DATE__); |
b801d8b2 JF |
1538 | return TRUE; |
1539 | ||
fac7db6c JF |
1540 | case REQ_SCREEN_RESIZE: |
1541 | resize_display(); | |
1542 | /* Fall-through */ | |
4a2909a7 | 1543 | case REQ_SCREEN_REDRAW: |
20bb5e18 | 1544 | redraw_display(); |
4a2909a7 JF |
1545 | break; |
1546 | ||
1547 | case REQ_SCREEN_UPDATE: | |
b801d8b2 JF |
1548 | doupdate(); |
1549 | return TRUE; | |
1550 | ||
4f9b667a | 1551 | case REQ_VIEW_CLOSE: |
2fcf5401 JF |
1552 | /* XXX: Mark closed views by letting view->parent point to the |
1553 | * view itself. Parents to closed view should never be | |
1554 | * followed. */ | |
1555 | if (view->parent && | |
1556 | view->parent->parent != view->parent) { | |
4f9b667a JF |
1557 | memset(display, 0, sizeof(display)); |
1558 | current_view = 0; | |
f6da0b66 | 1559 | display[current_view] = view->parent; |
2fcf5401 | 1560 | view->parent = view; |
4f9b667a JF |
1561 | resize_display(); |
1562 | redraw_display(); | |
1563 | break; | |
1564 | } | |
1565 | /* Fall-through */ | |
b801d8b2 JF |
1566 | case REQ_QUIT: |
1567 | return FALSE; | |
1568 | ||
1569 | default: | |
2e8488b4 | 1570 | /* An unknown key will show most commonly used commands. */ |
468876c9 | 1571 | report("Unknown key, press 'h' for help"); |
b801d8b2 JF |
1572 | return TRUE; |
1573 | } | |
1574 | ||
1575 | return TRUE; | |
1576 | } | |
1577 | ||
1578 | ||
1579 | /* | |
ff26aa29 | 1580 | * Pager backend |
b801d8b2 JF |
1581 | */ |
1582 | ||
6b161b31 | 1583 | static bool |
fe7233c3 | 1584 | pager_draw(struct view *view, struct line *line, unsigned int lineno) |
b801d8b2 | 1585 | { |
fe7233c3 JF |
1586 | char *text = line->data; |
1587 | enum line_type type = line->type; | |
1588 | int textlen = strlen(text); | |
78c70acd | 1589 | int attr; |
b801d8b2 | 1590 | |
6706b2ba JF |
1591 | wmove(view->win, lineno, 0); |
1592 | ||
fd85fef1 | 1593 | if (view->offset + lineno == view->lineno) { |
8855ada4 | 1594 | if (type == LINE_COMMIT) { |
fe7233c3 | 1595 | string_copy(view->ref, text + 7); |
03a93dbb JF |
1596 | string_copy(ref_commit, view->ref); |
1597 | } | |
8855ada4 | 1598 | |
78c70acd | 1599 | type = LINE_CURSOR; |
6706b2ba | 1600 | wchgat(view->win, -1, 0, type, NULL); |
fd85fef1 JF |
1601 | } |
1602 | ||
78c70acd | 1603 | attr = get_line_attr(type); |
b801d8b2 | 1604 | wattrset(view->win, attr); |
b76c2afc | 1605 | |
6706b2ba JF |
1606 | if (opt_line_number || opt_tab_size < TABSIZE) { |
1607 | static char spaces[] = " "; | |
1608 | int col_offset = 0, col = 0; | |
1609 | ||
1610 | if (opt_line_number) { | |
1611 | unsigned long real_lineno = view->offset + lineno + 1; | |
82e78006 | 1612 | |
6706b2ba JF |
1613 | if (real_lineno == 1 || |
1614 | (real_lineno % opt_num_interval) == 0) { | |
1615 | wprintw(view->win, "%.*d", view->digits, real_lineno); | |
8855ada4 | 1616 | |
6706b2ba JF |
1617 | } else { |
1618 | waddnstr(view->win, spaces, | |
1619 | MIN(view->digits, STRING_SIZE(spaces))); | |
1620 | } | |
1621 | waddstr(view->win, ": "); | |
1622 | col_offset = view->digits + 2; | |
1623 | } | |
8855ada4 | 1624 | |
fe7233c3 | 1625 | while (text && col_offset + col < view->width) { |
6706b2ba | 1626 | int cols_max = view->width - col_offset - col; |
fe7233c3 | 1627 | char *pos = text; |
6706b2ba | 1628 | int cols; |
4c6fabc2 | 1629 | |
fe7233c3 JF |
1630 | if (*text == '\t') { |
1631 | text++; | |
6706b2ba | 1632 | assert(sizeof(spaces) > TABSIZE); |
fe7233c3 | 1633 | pos = spaces; |
6706b2ba | 1634 | cols = opt_tab_size - (col % opt_tab_size); |
82e78006 | 1635 | |
b76c2afc | 1636 | } else { |
fe7233c3 JF |
1637 | text = strchr(text, '\t'); |
1638 | cols = line ? text - pos : strlen(pos); | |
b76c2afc | 1639 | } |
6706b2ba | 1640 | |
fe7233c3 | 1641 | waddnstr(view->win, pos, MIN(cols, cols_max)); |
6706b2ba | 1642 | col += cols; |
b76c2afc | 1643 | } |
b76c2afc JF |
1644 | |
1645 | } else { | |
6706b2ba | 1646 | int col = 0, pos = 0; |
b801d8b2 | 1647 | |
fe7233c3 JF |
1648 | for (; pos < textlen && col < view->width; pos++, col++) |
1649 | if (text[pos] == '\t') | |
6706b2ba JF |
1650 | col += TABSIZE - (col % TABSIZE) - 1; |
1651 | ||
fe7233c3 | 1652 | waddnstr(view->win, text, pos); |
6706b2ba | 1653 | } |
2e8488b4 | 1654 | |
b801d8b2 JF |
1655 | return TRUE; |
1656 | } | |
1657 | ||
7b99a34c JF |
1658 | static void |
1659 | add_pager_refs(struct view *view, struct line *line) | |
1660 | { | |
1661 | char buf[1024]; | |
1662 | char *data = line->data; | |
1663 | struct ref **refs; | |
1664 | int bufpos = 0, refpos = 0; | |
1665 | const char *sep = "Refs: "; | |
1666 | ||
1667 | assert(line->type == LINE_COMMIT); | |
1668 | ||
1669 | refs = get_refs(data + STRING_SIZE("commit ")); | |
1670 | if (!refs) | |
1671 | return; | |
1672 | ||
1673 | do { | |
cc2d1364 JF |
1674 | struct ref *ref = refs[refpos]; |
1675 | char *fmt = ref->tag ? "%s[%s]" : "%s%s"; | |
7b99a34c | 1676 | |
cc2d1364 JF |
1677 | if (!string_format_from(buf, &bufpos, fmt, sep, ref->name)) |
1678 | return; | |
7b99a34c JF |
1679 | sep = ", "; |
1680 | } while (refs[refpos++]->next); | |
1681 | ||
cc2d1364 | 1682 | if (!realloc_lines(view, view->line_size + 1)) |
7b99a34c JF |
1683 | return; |
1684 | ||
1685 | line = &view->line[view->lines]; | |
1686 | line->data = strdup(buf); | |
1687 | if (!line->data) | |
1688 | return; | |
1689 | ||
1690 | line->type = LINE_PP_REFS; | |
1691 | view->lines++; | |
1692 | } | |
1693 | ||
6b161b31 | 1694 | static bool |
701e4f5d | 1695 | pager_read(struct view *view, char *data) |
22f66b0a | 1696 | { |
7b99a34c | 1697 | struct line *line = &view->line[view->lines]; |
22f66b0a | 1698 | |
7b99a34c JF |
1699 | line->data = strdup(data); |
1700 | if (!line->data) | |
1701 | return FALSE; | |
fe7233c3 | 1702 | |
7b99a34c | 1703 | line->type = get_line_type(line->data); |
22f66b0a | 1704 | view->lines++; |
7b99a34c JF |
1705 | |
1706 | if (line->type == LINE_COMMIT && | |
1707 | (view == VIEW(REQ_VIEW_DIFF) || | |
1708 | view == VIEW(REQ_VIEW_LOG))) | |
1709 | add_pager_refs(view, line); | |
1710 | ||
22f66b0a JF |
1711 | return TRUE; |
1712 | } | |
1713 | ||
6b161b31 | 1714 | static bool |
fe7233c3 | 1715 | pager_enter(struct view *view, struct line *line) |
6b161b31 | 1716 | { |
91e8e277 | 1717 | int split = 0; |
6b161b31 | 1718 | |
9fbbd28f JF |
1719 | if (line->type == LINE_COMMIT && |
1720 | (view == VIEW(REQ_VIEW_LOG) || | |
1721 | view == VIEW(REQ_VIEW_PAGER))) { | |
91e8e277 JF |
1722 | open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT); |
1723 | split = 1; | |
67e48ac5 JF |
1724 | } |
1725 | ||
91e8e277 JF |
1726 | /* Always scroll the view even if it was split. That way |
1727 | * you can use Enter to scroll through the log view and | |
1728 | * split open each commit diff. */ | |
1729 | scroll_view(view, REQ_SCROLL_LINE_DOWN); | |
1730 | ||
1731 | /* FIXME: A minor workaround. Scrolling the view will call report("") | |
9d82d824 JF |
1732 | * but if we are scrolling a non-current view this won't properly |
1733 | * update the view title. */ | |
91e8e277 JF |
1734 | if (split) |
1735 | update_view_title(view); | |
6b161b31 JF |
1736 | |
1737 | return TRUE; | |
1738 | } | |
1739 | ||
6b161b31 | 1740 | static struct view_ops pager_ops = { |
6734f6b9 | 1741 | "line", |
6b161b31 JF |
1742 | pager_draw, |
1743 | pager_read, | |
1744 | pager_enter, | |
1745 | }; | |
1746 | ||
80ce96ea | 1747 | |
ff26aa29 JF |
1748 | /* |
1749 | * Main view backend | |
1750 | */ | |
1751 | ||
1752 | struct commit { | |
54efb62b JF |
1753 | char id[41]; /* SHA1 ID. */ |
1754 | char title[75]; /* First line of the commit message. */ | |
1755 | char author[75]; /* Author of the commit. */ | |
1756 | struct tm time; /* Date from the author ident. */ | |
1757 | struct ref **refs; /* Repository references. */ | |
1758 | chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */ | |
1759 | size_t graph_size; /* The width of the graph array. */ | |
ff26aa29 | 1760 | }; |
c34d9c9f | 1761 | |
6b161b31 | 1762 | static bool |
fe7233c3 | 1763 | main_draw(struct view *view, struct line *line, unsigned int lineno) |
22f66b0a | 1764 | { |
2e8488b4 | 1765 | char buf[DATE_COLS + 1]; |
fe7233c3 | 1766 | struct commit *commit = line->data; |
78c70acd | 1767 | enum line_type type; |
6706b2ba | 1768 | int col = 0; |
b76c2afc | 1769 | size_t timelen; |
10e290ee | 1770 | size_t authorlen; |
9989bf60 | 1771 | int trimmed = 1; |
22f66b0a | 1772 | |
4c6fabc2 JF |
1773 | if (!*commit->author) |
1774 | return FALSE; | |
22f66b0a | 1775 | |
6706b2ba JF |
1776 | wmove(view->win, lineno, col); |
1777 | ||
22f66b0a | 1778 | if (view->offset + lineno == view->lineno) { |
03a93dbb | 1779 | string_copy(view->ref, commit->id); |
49f2b43f | 1780 | string_copy(ref_commit, view->ref); |
78c70acd | 1781 | type = LINE_CURSOR; |
6706b2ba JF |
1782 | wattrset(view->win, get_line_attr(type)); |
1783 | wchgat(view->win, -1, 0, type, NULL); | |
1784 | ||
78c70acd | 1785 | } else { |
b76c2afc | 1786 | type = LINE_MAIN_COMMIT; |
6706b2ba | 1787 | wattrset(view->win, get_line_attr(LINE_MAIN_DATE)); |
b76c2afc JF |
1788 | } |
1789 | ||
4c6fabc2 | 1790 | timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time); |
b76c2afc | 1791 | waddnstr(view->win, buf, timelen); |
4c6fabc2 | 1792 | waddstr(view->win, " "); |
b76c2afc | 1793 | |
6706b2ba JF |
1794 | col += DATE_COLS; |
1795 | wmove(view->win, lineno, col); | |
1796 | if (type != LINE_CURSOR) | |
1797 | wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR)); | |
b76c2afc | 1798 | |
9989bf60 JF |
1799 | if (opt_utf8) { |
1800 | authorlen = utf8_length(commit->author, AUTHOR_COLS - 2, &col, &trimmed); | |
1801 | } else { | |
1802 | authorlen = strlen(commit->author); | |
1803 | if (authorlen > AUTHOR_COLS - 2) { | |
1804 | authorlen = AUTHOR_COLS - 2; | |
1805 | trimmed = 1; | |
1806 | } | |
1807 | } | |
10e290ee JF |
1808 | |
1809 | if (trimmed) { | |
1810 | waddnstr(view->win, commit->author, authorlen); | |
6706b2ba JF |
1811 | if (type != LINE_CURSOR) |
1812 | wattrset(view->win, get_line_attr(LINE_MAIN_DELIM)); | |
b76c2afc JF |
1813 | waddch(view->win, '~'); |
1814 | } else { | |
1815 | waddstr(view->win, commit->author); | |
22f66b0a JF |
1816 | } |
1817 | ||
10e290ee | 1818 | col += AUTHOR_COLS; |
6706b2ba JF |
1819 | if (type != LINE_CURSOR) |
1820 | wattrset(view->win, A_NORMAL); | |
1821 | ||
54efb62b JF |
1822 | if (opt_rev_graph && commit->graph_size) { |
1823 | size_t i; | |
1824 | ||
1825 | wmove(view->win, lineno, col); | |
1826 | /* Using waddch() instead of waddnstr() ensures that | |
1827 | * they'll be rendered correctly for the cursor line. */ | |
1828 | for (i = 0; i < commit->graph_size; i++) | |
1829 | waddch(view->win, commit->graph[i]); | |
1830 | ||
1831 | col += commit->graph_size + 1; | |
1832 | } | |
1833 | ||
1834 | wmove(view->win, lineno, col); | |
c34d9c9f JF |
1835 | |
1836 | if (commit->refs) { | |
1837 | size_t i = 0; | |
1838 | ||
1839 | do { | |
6706b2ba JF |
1840 | if (type == LINE_CURSOR) |
1841 | ; | |
1842 | else if (commit->refs[i]->tag) | |
c34d9c9f JF |
1843 | wattrset(view->win, get_line_attr(LINE_MAIN_TAG)); |
1844 | else | |
1845 | wattrset(view->win, get_line_attr(LINE_MAIN_REF)); | |
1846 | waddstr(view->win, "["); | |
1847 | waddstr(view->win, commit->refs[i]->name); | |
1848 | waddstr(view->win, "]"); | |
6706b2ba JF |
1849 | if (type != LINE_CURSOR) |
1850 | wattrset(view->win, A_NORMAL); | |
c34d9c9f | 1851 | waddstr(view->win, " "); |
6706b2ba | 1852 | col += strlen(commit->refs[i]->name) + STRING_SIZE("[] "); |
c34d9c9f JF |
1853 | } while (commit->refs[i++]->next); |
1854 | } | |
1855 | ||
6706b2ba JF |
1856 | if (type != LINE_CURSOR) |
1857 | wattrset(view->win, get_line_attr(type)); | |
1858 | ||
1859 | { | |
1860 | int titlelen = strlen(commit->title); | |
1861 | ||
1862 | if (col + titlelen > view->width) | |
1863 | titlelen = view->width - col; | |
1864 | ||
1865 | waddnstr(view->win, commit->title, titlelen); | |
1866 | } | |
22f66b0a JF |
1867 | |
1868 | return TRUE; | |
1869 | } | |
1870 | ||
4c6fabc2 | 1871 | /* Reads git log --pretty=raw output and parses it into the commit struct. */ |
6b161b31 | 1872 | static bool |
701e4f5d | 1873 | main_read(struct view *view, char *line) |
22f66b0a | 1874 | { |
78c70acd | 1875 | enum line_type type = get_line_type(line); |
701e4f5d JF |
1876 | struct commit *commit = view->lines |
1877 | ? view->line[view->lines - 1].data : NULL; | |
22f66b0a | 1878 | |
78c70acd JF |
1879 | switch (type) { |
1880 | case LINE_COMMIT: | |
22f66b0a JF |
1881 | commit = calloc(1, sizeof(struct commit)); |
1882 | if (!commit) | |
1883 | return FALSE; | |
1884 | ||
4c6fabc2 | 1885 | line += STRING_SIZE("commit "); |
b76c2afc | 1886 | |
fe7233c3 | 1887 | view->line[view->lines++].data = commit; |
82e78006 | 1888 | string_copy(commit->id, line); |
c34d9c9f | 1889 | commit->refs = get_refs(commit->id); |
54efb62b | 1890 | commit->graph[commit->graph_size++] = ACS_LTEE; |
78c70acd | 1891 | break; |
22f66b0a | 1892 | |
8855ada4 | 1893 | case LINE_AUTHOR: |
b76c2afc | 1894 | { |
4c6fabc2 | 1895 | char *ident = line + STRING_SIZE("author "); |
b76c2afc JF |
1896 | char *end = strchr(ident, '<'); |
1897 | ||
701e4f5d | 1898 | if (!commit) |
fe7233c3 JF |
1899 | break; |
1900 | ||
b76c2afc JF |
1901 | if (end) { |
1902 | for (; end > ident && isspace(end[-1]); end--) ; | |
1903 | *end = 0; | |
1904 | } | |
1905 | ||
82e78006 | 1906 | string_copy(commit->author, ident); |
b76c2afc | 1907 | |
4c6fabc2 | 1908 | /* Parse epoch and timezone */ |
b76c2afc JF |
1909 | if (end) { |
1910 | char *secs = strchr(end + 1, '>'); | |
1911 | char *zone; | |
1912 | time_t time; | |
1913 | ||
1914 | if (!secs || secs[1] != ' ') | |
1915 | break; | |
1916 | ||
1917 | secs += 2; | |
1918 | time = (time_t) atol(secs); | |
1919 | zone = strchr(secs, ' '); | |
4c6fabc2 | 1920 | if (zone && strlen(zone) == STRING_SIZE(" +0700")) { |
b76c2afc JF |
1921 | long tz; |
1922 | ||
1923 | zone++; | |
1924 | tz = ('0' - zone[1]) * 60 * 60 * 10; | |
1925 | tz += ('0' - zone[2]) * 60 * 60; | |
1926 | tz += ('0' - zone[3]) * 60; | |
1927 | tz += ('0' - zone[4]) * 60; | |
1928 | ||
1929 | if (zone[0] == '-') | |
1930 | tz = -tz; | |
1931 | ||
1932 | time -= tz; | |
1933 | } | |
1934 | gmtime_r(&time, &commit->time); | |
1935 | } | |
1936 | break; | |
1937 | } | |
78c70acd | 1938 | default: |
701e4f5d | 1939 | if (!commit) |
2e8488b4 JF |
1940 | break; |
1941 | ||
1942 | /* Fill in the commit title if it has not already been set. */ | |
2e8488b4 JF |
1943 | if (commit->title[0]) |
1944 | break; | |
1945 | ||
1946 | /* Require titles to start with a non-space character at the | |
1947 | * offset used by git log. */ | |
eb98559e JF |
1948 | /* FIXME: More gracefull handling of titles; append "..." to |
1949 | * shortened titles, etc. */ | |
2e8488b4 | 1950 | if (strncmp(line, " ", 4) || |
eb98559e | 1951 | isspace(line[4])) |
82e78006 JF |
1952 | break; |
1953 | ||
1954 | string_copy(commit->title, line + 4); | |
22f66b0a JF |
1955 | } |
1956 | ||
1957 | return TRUE; | |
1958 | } | |
1959 | ||
6b161b31 | 1960 | static bool |
fe7233c3 | 1961 | main_enter(struct view *view, struct line *line) |
b801d8b2 | 1962 | { |
b3a54cba JF |
1963 | enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT; |
1964 | ||
1965 | open_view(view, REQ_VIEW_DIFF, flags); | |
6b161b31 | 1966 | return TRUE; |
b801d8b2 JF |
1967 | } |
1968 | ||
6b161b31 | 1969 | static struct view_ops main_ops = { |
6734f6b9 | 1970 | "commit", |
6b161b31 JF |
1971 | main_draw, |
1972 | main_read, | |
1973 | main_enter, | |
1974 | }; | |
2e8488b4 | 1975 | |
c34d9c9f | 1976 | |
d839253b JF |
1977 | /* |
1978 | * Keys | |
1979 | */ | |
468876c9 JF |
1980 | |
1981 | struct keymap { | |
1982 | int alias; | |
1983 | int request; | |
1984 | }; | |
1985 | ||
3a91b75e | 1986 | static struct keymap keymap[] = { |
d839253b | 1987 | /* View switching */ |
b3a54cba JF |
1988 | { 'm', REQ_VIEW_MAIN }, |
1989 | { 'd', REQ_VIEW_DIFF }, | |
1990 | { 'l', REQ_VIEW_LOG }, | |
1991 | { 'p', REQ_VIEW_PAGER }, | |
1992 | { 'h', REQ_VIEW_HELP }, | |
24b5b3e0 | 1993 | { '?', REQ_VIEW_HELP }, |
b3a54cba | 1994 | |
d839253b | 1995 | /* View manipulation */ |
4f9b667a | 1996 | { 'q', REQ_VIEW_CLOSE }, |
468876c9 JF |
1997 | { KEY_TAB, REQ_VIEW_NEXT }, |
1998 | { KEY_RETURN, REQ_ENTER }, | |
b3a54cba JF |
1999 | { KEY_UP, REQ_PREVIOUS }, |
2000 | { KEY_DOWN, REQ_NEXT }, | |
468876c9 | 2001 | |
d839253b | 2002 | /* Cursor navigation */ |
b3a54cba JF |
2003 | { 'k', REQ_MOVE_UP }, |
2004 | { 'j', REQ_MOVE_DOWN }, | |
468876c9 JF |
2005 | { KEY_HOME, REQ_MOVE_FIRST_LINE }, |
2006 | { KEY_END, REQ_MOVE_LAST_LINE }, | |
2007 | { KEY_NPAGE, REQ_MOVE_PAGE_DOWN }, | |
c622eefa | 2008 | { ' ', REQ_MOVE_PAGE_DOWN }, |
468876c9 | 2009 | { KEY_PPAGE, REQ_MOVE_PAGE_UP }, |
c622eefa | 2010 | { 'b', REQ_MOVE_PAGE_UP }, |
0df811cb | 2011 | { '-', REQ_MOVE_PAGE_UP }, |
468876c9 | 2012 | |
d839253b | 2013 | /* Scrolling */ |
468876c9 JF |
2014 | { KEY_IC, REQ_SCROLL_LINE_UP }, |
2015 | { KEY_DC, REQ_SCROLL_LINE_DOWN }, | |
2016 | { 'w', REQ_SCROLL_PAGE_UP }, | |
2017 | { 's', REQ_SCROLL_PAGE_DOWN }, | |
2018 | ||
d839253b | 2019 | /* Misc */ |
d9d1c722 | 2020 | { 'Q', REQ_QUIT }, |
468876c9 JF |
2021 | { 'z', REQ_STOP_LOADING }, |
2022 | { 'v', REQ_SHOW_VERSION }, | |
2023 | { 'r', REQ_SCREEN_REDRAW }, | |
24b5b3e0 | 2024 | { 'n', REQ_TOGGLE_LINENO }, |
54efb62b | 2025 | { 'g', REQ_TOGGLE_REV_GRAPH}, |
468876c9 JF |
2026 | { ':', REQ_PROMPT }, |
2027 | ||
2028 | /* wgetch() with nodelay() enabled returns ERR when there's no input. */ | |
2029 | { ERR, REQ_SCREEN_UPDATE }, | |
2030 | ||
2031 | /* Use the ncurses SIGWINCH handler. */ | |
2032 | { KEY_RESIZE, REQ_SCREEN_RESIZE }, | |
2033 | }; | |
2034 | ||
2035 | static enum request | |
2036 | get_request(int key) | |
2037 | { | |
2038 | int i; | |
2039 | ||
2040 | for (i = 0; i < ARRAY_SIZE(keymap); i++) | |
2041 | if (keymap[i].alias == key) | |
2042 | return keymap[i].request; | |
2043 | ||
2044 | return (enum request) key; | |
2045 | } | |
2046 | ||
24b5b3e0 JF |
2047 | struct key { |
2048 | char *name; | |
2049 | int value; | |
2050 | }; | |
2051 | ||
2052 | static struct key key_table[] = { | |
2053 | { "Enter", KEY_RETURN }, | |
2054 | { "Space", ' ' }, | |
2055 | { "Backspace", KEY_BACKSPACE }, | |
2056 | { "Tab", KEY_TAB }, | |
2057 | { "Escape", KEY_ESC }, | |
2058 | { "Left", KEY_LEFT }, | |
2059 | { "Right", KEY_RIGHT }, | |
2060 | { "Up", KEY_UP }, | |
2061 | { "Down", KEY_DOWN }, | |
2062 | { "Insert", KEY_IC }, | |
2063 | { "Delete", KEY_DC }, | |
2064 | { "Home", KEY_HOME }, | |
2065 | { "End", KEY_END }, | |
2066 | { "PageUp", KEY_PPAGE }, | |
2067 | { "PageDown", KEY_NPAGE }, | |
2068 | { "F1", KEY_F(1) }, | |
2069 | { "F2", KEY_F(2) }, | |
2070 | { "F3", KEY_F(3) }, | |
2071 | { "F4", KEY_F(4) }, | |
2072 | { "F5", KEY_F(5) }, | |
2073 | { "F6", KEY_F(6) }, | |
2074 | { "F7", KEY_F(7) }, | |
2075 | { "F8", KEY_F(8) }, | |
2076 | { "F9", KEY_F(9) }, | |
2077 | { "F10", KEY_F(10) }, | |
2078 | { "F11", KEY_F(11) }, | |
2079 | { "F12", KEY_F(12) }, | |
2080 | }; | |
2081 | ||
2082 | static char * | |
2083 | get_key(enum request request) | |
2084 | { | |
2085 | static char buf[BUFSIZ]; | |
2086 | static char key_char[] = "'X'"; | |
2087 | int pos = 0; | |
2088 | char *sep = " "; | |
2089 | int i; | |
2090 | ||
2091 | buf[pos] = 0; | |
2092 | ||
2093 | for (i = 0; i < ARRAY_SIZE(keymap); i++) { | |
2094 | char *seq = NULL; | |
2095 | int key; | |
2096 | ||
2097 | if (keymap[i].request != request) | |
2098 | continue; | |
2099 | ||
2100 | for (key = 0; key < ARRAY_SIZE(key_table); key++) | |
2101 | if (key_table[key].value == keymap[i].alias) | |
2102 | seq = key_table[key].name; | |
2103 | ||
2104 | if (seq == NULL && | |
2105 | keymap[i].alias < 127 && | |
2106 | isprint(keymap[i].alias)) { | |
2107 | key_char[1] = (char) keymap[i].alias; | |
2108 | seq = key_char; | |
2109 | } | |
2110 | ||
2111 | if (!seq) | |
2112 | seq = "'?'"; | |
2113 | ||
cc2d1364 | 2114 | if (!string_format_from(buf, &pos, "%s%s", sep, seq)) |
24b5b3e0 JF |
2115 | return "Too many keybindings!"; |
2116 | sep = ", "; | |
2117 | } | |
2118 | ||
2119 | return buf; | |
2120 | } | |
2121 | ||
2122 | static void load_help_page(void) | |
2123 | { | |
2124 | char buf[BUFSIZ]; | |
2125 | struct view *view = VIEW(REQ_VIEW_HELP); | |
2126 | int lines = ARRAY_SIZE(req_info) + 2; | |
2127 | int i; | |
2128 | ||
2129 | if (view->lines > 0) | |
2130 | return; | |
2131 | ||
2132 | for (i = 0; i < ARRAY_SIZE(req_info); i++) | |
2133 | if (!req_info[i].request) | |
2134 | lines++; | |
2135 | ||
2136 | view->line = calloc(lines, sizeof(*view->line)); | |
2137 | if (!view->line) { | |
2138 | report("Allocation failure"); | |
2139 | return; | |
2140 | } | |
2141 | ||
701e4f5d | 2142 | pager_read(view, "Quick reference for tig keybindings:"); |
24b5b3e0 JF |
2143 | |
2144 | for (i = 0; i < ARRAY_SIZE(req_info); i++) { | |
2145 | char *key; | |
2146 | ||
2147 | if (!req_info[i].request) { | |
701e4f5d JF |
2148 | pager_read(view, ""); |
2149 | pager_read(view, req_info[i].help); | |
24b5b3e0 JF |
2150 | continue; |
2151 | } | |
2152 | ||
2153 | key = get_key(req_info[i].request); | |
fff1780f | 2154 | if (!string_format(buf, "%-25s %s", key, req_info[i].help)) |
24b5b3e0 JF |
2155 | continue; |
2156 | ||
701e4f5d | 2157 | pager_read(view, buf); |
24b5b3e0 JF |
2158 | } |
2159 | } | |
2160 | ||
468876c9 | 2161 | |
6b161b31 | 2162 | /* |
10e290ee JF |
2163 | * Unicode / UTF-8 handling |
2164 | * | |
2165 | * NOTE: Much of the following code for dealing with unicode is derived from | |
2166 | * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is | |
2167 | * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28. | |
2168 | */ | |
2169 | ||
2170 | /* I've (over)annotated a lot of code snippets because I am not entirely | |
2171 | * confident that the approach taken by this small UTF-8 interface is correct. | |
2172 | * --jonas */ | |
2173 | ||
2174 | static inline int | |
2175 | unicode_width(unsigned long c) | |
2176 | { | |
2177 | if (c >= 0x1100 && | |
2178 | (c <= 0x115f /* Hangul Jamo */ | |
2179 | || c == 0x2329 | |
2180 | || c == 0x232a | |
2181 | || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f) | |
f97f4012 | 2182 | /* CJK ... Yi */ |
10e290ee JF |
2183 | || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */ |
2184 | || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */ | |
2185 | || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */ | |
2186 | || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */ | |
2187 | || (c >= 0xffe0 && c <= 0xffe6) | |
2188 | || (c >= 0x20000 && c <= 0x2fffd) | |
2189 | || (c >= 0x30000 && c <= 0x3fffd))) | |
2190 | return 2; | |
2191 | ||
2192 | return 1; | |
2193 | } | |
2194 | ||
2195 | /* Number of bytes used for encoding a UTF-8 character indexed by first byte. | |
2196 | * Illegal bytes are set one. */ | |
2197 | static const unsigned char utf8_bytes[256] = { | |
2198 | 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, | |
2199 | 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, | |
2200 | 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, | |
2201 | 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, | |
2202 | 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, | |
2203 | 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, | |
2204 | 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, | |
2205 | 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, | |
2206 | }; | |
2207 | ||
2208 | /* Decode UTF-8 multi-byte representation into a unicode character. */ | |
2209 | static inline unsigned long | |
2210 | utf8_to_unicode(const char *string, size_t length) | |
2211 | { | |
2212 | unsigned long unicode; | |
2213 | ||
2214 | switch (length) { | |
2215 | case 1: | |
2216 | unicode = string[0]; | |
2217 | break; | |
2218 | case 2: | |
2219 | unicode = (string[0] & 0x1f) << 6; | |
2220 | unicode += (string[1] & 0x3f); | |
2221 | break; | |
2222 | case 3: | |
2223 | unicode = (string[0] & 0x0f) << 12; | |
2224 | unicode += ((string[1] & 0x3f) << 6); | |
2225 | unicode += (string[2] & 0x3f); | |
2226 | break; | |
2227 | case 4: | |
2228 | unicode = (string[0] & 0x0f) << 18; | |
2229 | unicode += ((string[1] & 0x3f) << 12); | |
2230 | unicode += ((string[2] & 0x3f) << 6); | |
2231 | unicode += (string[3] & 0x3f); | |
2232 | break; | |
2233 | case 5: | |
2234 | unicode = (string[0] & 0x0f) << 24; | |
2235 | unicode += ((string[1] & 0x3f) << 18); | |
2236 | unicode += ((string[2] & 0x3f) << 12); | |
2237 | unicode += ((string[3] & 0x3f) << 6); | |
2238 | unicode += (string[4] & 0x3f); | |
2239 | break; | |
68b6e0eb | 2240 | case 6: |
10e290ee JF |
2241 | unicode = (string[0] & 0x01) << 30; |
2242 | unicode += ((string[1] & 0x3f) << 24); | |
2243 | unicode += ((string[2] & 0x3f) << 18); | |
2244 | unicode += ((string[3] & 0x3f) << 12); | |
2245 | unicode += ((string[4] & 0x3f) << 6); | |
2246 | unicode += (string[5] & 0x3f); | |
2247 | break; | |
2248 | default: | |
2249 | die("Invalid unicode length"); | |
2250 | } | |
2251 | ||
2252 | /* Invalid characters could return the special 0xfffd value but NUL | |
2253 | * should be just as good. */ | |
2254 | return unicode > 0xffff ? 0 : unicode; | |
2255 | } | |
2256 | ||
2257 | /* Calculates how much of string can be shown within the given maximum width | |
2258 | * and sets trimmed parameter to non-zero value if all of string could not be | |
2259 | * shown. | |
2260 | * | |
2261 | * Additionally, adds to coloffset how many many columns to move to align with | |
2262 | * the expected position. Takes into account how multi-byte and double-width | |
2263 | * characters will effect the cursor position. | |
2264 | * | |
2265 | * Returns the number of bytes to output from string to satisfy max_width. */ | |
2266 | static size_t | |
2267 | utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed) | |
2268 | { | |
2269 | const char *start = string; | |
2270 | const char *end = strchr(string, '\0'); | |
2271 | size_t mbwidth = 0; | |
2272 | size_t width = 0; | |
2273 | ||
2274 | *trimmed = 0; | |
2275 | ||
2276 | while (string < end) { | |
2277 | int c = *(unsigned char *) string; | |
2278 | unsigned char bytes = utf8_bytes[c]; | |
2279 | size_t ucwidth; | |
2280 | unsigned long unicode; | |
2281 | ||
2282 | if (string + bytes > end) | |
2283 | break; | |
2284 | ||
2285 | /* Change representation to figure out whether | |
2286 | * it is a single- or double-width character. */ | |
2287 | ||
2288 | unicode = utf8_to_unicode(string, bytes); | |
2289 | /* FIXME: Graceful handling of invalid unicode character. */ | |
2290 | if (!unicode) | |
2291 | break; | |
2292 | ||
2293 | ucwidth = unicode_width(unicode); | |
2294 | width += ucwidth; | |
2295 | if (width > max_width) { | |
2296 | *trimmed = 1; | |
2297 | break; | |
2298 | } | |
2299 | ||
2300 | /* The column offset collects the differences between the | |
2301 | * number of bytes encoding a character and the number of | |
2302 | * columns will be used for rendering said character. | |
2303 | * | |
2304 | * So if some character A is encoded in 2 bytes, but will be | |
2305 | * represented on the screen using only 1 byte this will and up | |
2306 | * adding 1 to the multi-byte column offset. | |
2307 | * | |
2308 | * Assumes that no double-width character can be encoding in | |
2309 | * less than two bytes. */ | |
2310 | if (bytes > ucwidth) | |
2311 | mbwidth += bytes - ucwidth; | |
2312 | ||
2313 | string += bytes; | |
2314 | } | |
2315 | ||
2316 | *coloffset += mbwidth; | |
2317 | ||
2318 | return string - start; | |
2319 | } | |
2320 | ||
2321 | ||
2322 | /* | |
6b161b31 JF |
2323 | * Status management |
2324 | */ | |
2e8488b4 | 2325 | |
8855ada4 | 2326 | /* Whether or not the curses interface has been initialized. */ |
68b6e0eb | 2327 | static bool cursed = FALSE; |
8855ada4 | 2328 | |
6b161b31 JF |
2329 | /* The status window is used for polling keystrokes. */ |
2330 | static WINDOW *status_win; | |
4a2909a7 | 2331 | |
2e8488b4 | 2332 | /* Update status and title window. */ |
4a2909a7 JF |
2333 | static void |
2334 | report(const char *msg, ...) | |
2335 | { | |
6706b2ba JF |
2336 | static bool empty = TRUE; |
2337 | struct view *view = display[current_view]; | |
b76c2afc | 2338 | |
6706b2ba JF |
2339 | if (!empty || *msg) { |
2340 | va_list args; | |
4a2909a7 | 2341 | |
6706b2ba | 2342 | va_start(args, msg); |
4b76734f | 2343 | |
6706b2ba JF |
2344 | werase(status_win); |
2345 | wmove(status_win, 0, 0); | |
2346 | if (*msg) { | |
2347 | vwprintw(status_win, msg, args); | |
2348 | empty = FALSE; | |
2349 | } else { | |
2350 | empty = TRUE; | |
2351 | } | |
2352 | wrefresh(status_win); | |
b801d8b2 | 2353 | |
6706b2ba JF |
2354 | va_end(args); |
2355 | } | |
2356 | ||
2357 | update_view_title(view); | |
85af6284 | 2358 | update_display_cursor(); |
b801d8b2 JF |
2359 | } |
2360 | ||
6b161b31 JF |
2361 | /* Controls when nodelay should be in effect when polling user input. */ |
2362 | static void | |
1ba2ae4b | 2363 | set_nonblocking_input(bool loading) |
b801d8b2 | 2364 | { |
6706b2ba | 2365 | static unsigned int loading_views; |
b801d8b2 | 2366 | |
6706b2ba JF |
2367 | if ((loading == FALSE && loading_views-- == 1) || |
2368 | (loading == TRUE && loading_views++ == 0)) | |
1ba2ae4b | 2369 | nodelay(status_win, loading); |
6b161b31 JF |
2370 | } |
2371 | ||
2372 | static void | |
2373 | init_display(void) | |
2374 | { | |
2375 | int x, y; | |
b76c2afc | 2376 | |
6908bdbd JF |
2377 | /* Initialize the curses library */ |
2378 | if (isatty(STDIN_FILENO)) { | |
8855ada4 | 2379 | cursed = !!initscr(); |
6908bdbd JF |
2380 | } else { |
2381 | /* Leave stdin and stdout alone when acting as a pager. */ | |
2382 | FILE *io = fopen("/dev/tty", "r+"); | |
2383 | ||
8855ada4 | 2384 | cursed = !!newterm(NULL, io, io); |
6908bdbd JF |
2385 | } |
2386 | ||
8855ada4 JF |
2387 | if (!cursed) |
2388 | die("Failed to initialize curses"); | |
2389 | ||
2e8488b4 JF |
2390 | nonl(); /* Tell curses not to do NL->CR/NL on output */ |
2391 | cbreak(); /* Take input chars one at a time, no wait for \n */ | |
2392 | noecho(); /* Don't echo input */ | |
b801d8b2 | 2393 | leaveok(stdscr, TRUE); |
b801d8b2 JF |
2394 | |
2395 | if (has_colors()) | |
2396 | init_colors(); | |
2397 | ||
2398 | getmaxyx(stdscr, y, x); | |
2399 | status_win = newwin(1, 0, y - 1, 0); | |
2400 | if (!status_win) | |
2401 | die("Failed to create status window"); | |
2402 | ||
2403 | /* Enable keyboard mapping */ | |
2404 | keypad(status_win, TRUE); | |
78c70acd | 2405 | wbkgdset(status_win, get_line_attr(LINE_STATUS)); |
6b161b31 JF |
2406 | } |
2407 | ||
c34d9c9f JF |
2408 | |
2409 | /* | |
2410 | * Repository references | |
2411 | */ | |
2412 | ||
2413 | static struct ref *refs; | |
3a91b75e | 2414 | static size_t refs_size; |
c34d9c9f | 2415 | |
1307df1a JF |
2416 | /* Id <-> ref store */ |
2417 | static struct ref ***id_refs; | |
2418 | static size_t id_refs_size; | |
2419 | ||
c34d9c9f JF |
2420 | static struct ref ** |
2421 | get_refs(char *id) | |
2422 | { | |
1307df1a JF |
2423 | struct ref ***tmp_id_refs; |
2424 | struct ref **ref_list = NULL; | |
2425 | size_t ref_list_size = 0; | |
c34d9c9f JF |
2426 | size_t i; |
2427 | ||
1307df1a JF |
2428 | for (i = 0; i < id_refs_size; i++) |
2429 | if (!strcmp(id, id_refs[i][0]->id)) | |
2430 | return id_refs[i]; | |
2431 | ||
2432 | tmp_id_refs = realloc(id_refs, (id_refs_size + 1) * sizeof(*id_refs)); | |
2433 | if (!tmp_id_refs) | |
2434 | return NULL; | |
2435 | ||
2436 | id_refs = tmp_id_refs; | |
2437 | ||
c34d9c9f JF |
2438 | for (i = 0; i < refs_size; i++) { |
2439 | struct ref **tmp; | |
2440 | ||
2441 | if (strcmp(id, refs[i].id)) | |
2442 | continue; | |
2443 | ||
1307df1a | 2444 | tmp = realloc(ref_list, (ref_list_size + 1) * sizeof(*ref_list)); |
c34d9c9f | 2445 | if (!tmp) { |
1307df1a JF |
2446 | if (ref_list) |
2447 | free(ref_list); | |
c34d9c9f JF |
2448 | return NULL; |
2449 | } | |
2450 | ||
1307df1a JF |
2451 | ref_list = tmp; |
2452 | if (ref_list_size > 0) | |
2453 | ref_list[ref_list_size - 1]->next = 1; | |
2454 | ref_list[ref_list_size] = &refs[i]; | |
3af8774e JF |
2455 | |
2456 | /* XXX: The properties of the commit chains ensures that we can | |
2457 | * safely modify the shared ref. The repo references will | |
2458 | * always be similar for the same id. */ | |
1307df1a JF |
2459 | ref_list[ref_list_size]->next = 0; |
2460 | ref_list_size++; | |
c34d9c9f JF |
2461 | } |
2462 | ||
1307df1a JF |
2463 | if (ref_list) |
2464 | id_refs[id_refs_size++] = ref_list; | |
2465 | ||
2466 | return ref_list; | |
c34d9c9f JF |
2467 | } |
2468 | ||
2469 | static int | |
d0cea5f9 | 2470 | read_ref(char *id, int idlen, char *name, int namelen) |
c34d9c9f | 2471 | { |
d0cea5f9 JF |
2472 | struct ref *ref; |
2473 | bool tag = FALSE; | |
d0cea5f9 | 2474 | |
8b0297ae JF |
2475 | if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) { |
2476 | /* Commits referenced by tags has "^{}" appended. */ | |
2477 | if (name[namelen - 1] != '}') | |
2478 | return OK; | |
2479 | ||
d0cea5f9 JF |
2480 | while (namelen > 0 && name[namelen] != '^') |
2481 | namelen--; | |
c34d9c9f | 2482 | |
d0cea5f9 | 2483 | tag = TRUE; |
8b0297ae JF |
2484 | namelen -= STRING_SIZE("refs/tags/"); |
2485 | name += STRING_SIZE("refs/tags/"); | |
c34d9c9f | 2486 | |
d0cea5f9 | 2487 | } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) { |
8b0297ae JF |
2488 | namelen -= STRING_SIZE("refs/heads/"); |
2489 | name += STRING_SIZE("refs/heads/"); | |
c34d9c9f | 2490 | |
d0cea5f9 JF |
2491 | } else if (!strcmp(name, "HEAD")) { |
2492 | return OK; | |
2493 | } | |
6706b2ba | 2494 | |
d0cea5f9 JF |
2495 | refs = realloc(refs, sizeof(*refs) * (refs_size + 1)); |
2496 | if (!refs) | |
2497 | return ERR; | |
c34d9c9f | 2498 | |
d0cea5f9 | 2499 | ref = &refs[refs_size++]; |
8b0297ae | 2500 | ref->name = malloc(namelen + 1); |
d0cea5f9 JF |
2501 | if (!ref->name) |
2502 | return ERR; | |
3af8774e | 2503 | |
8b0297ae JF |
2504 | strncpy(ref->name, name, namelen); |
2505 | ref->name[namelen] = 0; | |
d0cea5f9 JF |
2506 | ref->tag = tag; |
2507 | string_copy(ref->id, id); | |
3af8774e | 2508 | |
d0cea5f9 JF |
2509 | return OK; |
2510 | } | |
c34d9c9f | 2511 | |
d0cea5f9 JF |
2512 | static int |
2513 | load_refs(void) | |
2514 | { | |
2515 | const char *cmd_env = getenv("TIG_LS_REMOTE"); | |
2516 | const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE; | |
c34d9c9f | 2517 | |
4a63c884 | 2518 | return read_properties(popen(cmd, "r"), "\t", read_ref); |
d0cea5f9 | 2519 | } |
c34d9c9f | 2520 | |
d0cea5f9 | 2521 | static int |
14c778a6 | 2522 | read_repo_config_option(char *name, int namelen, char *value, int valuelen) |
d0cea5f9 | 2523 | { |
22913179 | 2524 | if (!strcmp(name, "i18n.commitencoding")) |
d0cea5f9 | 2525 | string_copy(opt_encoding, value); |
c34d9c9f | 2526 | |
c34d9c9f JF |
2527 | return OK; |
2528 | } | |
2529 | ||
4670cf89 | 2530 | static int |
14c778a6 | 2531 | load_repo_config(void) |
4670cf89 | 2532 | { |
66749723 | 2533 | return read_properties(popen("git repo-config --list", "r"), |
14c778a6 | 2534 | "=", read_repo_config_option); |
d0cea5f9 JF |
2535 | } |
2536 | ||
2537 | static int | |
4a63c884 | 2538 | read_properties(FILE *pipe, const char *separators, |
d0cea5f9 JF |
2539 | int (*read_property)(char *, int, char *, int)) |
2540 | { | |
4670cf89 JF |
2541 | char buffer[BUFSIZ]; |
2542 | char *name; | |
d0cea5f9 | 2543 | int state = OK; |
4670cf89 JF |
2544 | |
2545 | if (!pipe) | |
2546 | return ERR; | |
2547 | ||
d0cea5f9 | 2548 | while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) { |
4a63c884 JF |
2549 | char *value; |
2550 | size_t namelen; | |
2551 | size_t valuelen; | |
4670cf89 | 2552 | |
4a63c884 JF |
2553 | name = chomp_string(name); |
2554 | namelen = strcspn(name, separators); | |
2555 | ||
2556 | if (name[namelen]) { | |
2557 | name[namelen] = 0; | |
2558 | value = chomp_string(name + namelen + 1); | |
d0cea5f9 | 2559 | valuelen = strlen(value); |
4670cf89 | 2560 | |
d0cea5f9 | 2561 | } else { |
d0cea5f9 JF |
2562 | value = ""; |
2563 | valuelen = 0; | |
4670cf89 | 2564 | } |
d0cea5f9 | 2565 | |
3c3801c2 | 2566 | state = read_property(name, namelen, value, valuelen); |
4670cf89 JF |
2567 | } |
2568 | ||
d0cea5f9 JF |
2569 | if (state != ERR && ferror(pipe)) |
2570 | state = ERR; | |
4670cf89 JF |
2571 | |
2572 | pclose(pipe); | |
2573 | ||
d0cea5f9 | 2574 | return state; |
4670cf89 JF |
2575 | } |
2576 | ||
d0cea5f9 | 2577 | |
6b161b31 JF |
2578 | /* |
2579 | * Main | |
2580 | */ | |
2581 | ||
b5c9e67f | 2582 | static void __NORETURN |
6b161b31 JF |
2583 | quit(int sig) |
2584 | { | |
8855ada4 JF |
2585 | /* XXX: Restore tty modes and let the OS cleanup the rest! */ |
2586 | if (cursed) | |
2587 | endwin(); | |
6b161b31 JF |
2588 | exit(0); |
2589 | } | |
2590 | ||
c6704a4e JF |
2591 | static void __NORETURN |
2592 | die(const char *err, ...) | |
6b161b31 JF |
2593 | { |
2594 | va_list args; | |
2595 | ||
2596 | endwin(); | |
2597 | ||
2598 | va_start(args, err); | |
2599 | fputs("tig: ", stderr); | |
2600 | vfprintf(stderr, err, args); | |
2601 | fputs("\n", stderr); | |
2602 | va_end(args); | |
2603 | ||
2604 | exit(1); | |
2605 | } | |
2606 | ||
2607 | int | |
2608 | main(int argc, char *argv[]) | |
2609 | { | |
1ba2ae4b | 2610 | struct view *view; |
6b161b31 | 2611 | enum request request; |
1ba2ae4b | 2612 | size_t i; |
6b161b31 JF |
2613 | |
2614 | signal(SIGINT, quit); | |
2615 | ||
660e09ad JF |
2616 | if (load_options() == ERR) |
2617 | die("Failed to load user config."); | |
2618 | ||
2619 | /* Load the repo config file so options can be overwritten from | |
afdc35b3 | 2620 | * the command line. */ |
14c778a6 | 2621 | if (load_repo_config() == ERR) |
afdc35b3 JF |
2622 | die("Failed to load repo config."); |
2623 | ||
8855ada4 | 2624 | if (!parse_options(argc, argv)) |
6b161b31 JF |
2625 | return 0; |
2626 | ||
c34d9c9f JF |
2627 | if (load_refs() == ERR) |
2628 | die("Failed to load refs."); | |
2629 | ||
7bb55251 JF |
2630 | /* Require a git repository unless when running in pager mode. */ |
2631 | if (refs_size == 0 && opt_request != REQ_VIEW_PAGER) | |
2632 | die("Not a git repository"); | |
2633 | ||
1ba2ae4b JF |
2634 | for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++) |
2635 | view->cmd_env = getenv(view->cmd_env); | |
2636 | ||
6b161b31 JF |
2637 | request = opt_request; |
2638 | ||
2639 | init_display(); | |
b801d8b2 JF |
2640 | |
2641 | while (view_driver(display[current_view], request)) { | |
6b161b31 | 2642 | int key; |
b801d8b2 JF |
2643 | int i; |
2644 | ||
6b161b31 JF |
2645 | foreach_view (view, i) |
2646 | update_view(view); | |
b801d8b2 JF |
2647 | |
2648 | /* Refresh, accept single keystroke of input */ | |
6b161b31 JF |
2649 | key = wgetch(status_win); |
2650 | request = get_request(key); | |
03a93dbb | 2651 | |
6706b2ba | 2652 | /* Some low-level request handling. This keeps access to |
fac7db6c JF |
2653 | * status_win restricted. */ |
2654 | switch (request) { | |
2655 | case REQ_PROMPT: | |
6908bdbd JF |
2656 | report(":"); |
2657 | /* Temporarily switch to line-oriented and echoed | |
2658 | * input. */ | |
03a93dbb JF |
2659 | nocbreak(); |
2660 | echo(); | |
49f2b43f JF |
2661 | |
2662 | if (wgetnstr(status_win, opt_cmd + 4, sizeof(opt_cmd) - 4) == OK) { | |
2663 | memcpy(opt_cmd, "git ", 4); | |
2664 | opt_request = REQ_VIEW_PAGER; | |
2665 | } else { | |
6a7bb912 JF |
2666 | report("Prompt interrupted by loading view, " |
2667 | "press 'z' to stop loading views"); | |
2668 | request = REQ_SCREEN_UPDATE; | |
49f2b43f JF |
2669 | } |
2670 | ||
6908bdbd JF |
2671 | noecho(); |
2672 | cbreak(); | |
fac7db6c JF |
2673 | break; |
2674 | ||
2675 | case REQ_SCREEN_RESIZE: | |
2676 | { | |
2677 | int height, width; | |
2678 | ||
2679 | getmaxyx(stdscr, height, width); | |
2680 | ||
2681 | /* Resize the status view and let the view driver take | |
2682 | * care of resizing the displayed views. */ | |
2683 | wresize(status_win, 1, width); | |
2684 | mvwin(status_win, height - 1, 0); | |
2685 | wrefresh(status_win); | |
2686 | break; | |
2687 | } | |
2688 | default: | |
2689 | break; | |
03a93dbb | 2690 | } |
b801d8b2 JF |
2691 | } |
2692 | ||
2693 | quit(0); | |
2694 | ||
2695 | return 0; | |
2696 | } |