Commit | Line | Data |
---|---|---|
4a2909a7 | 1 | /* Copyright (c) 2006 Jonas Fonseca <fonseca@diku.dk> |
192d9a60 | 2 | * |
5cfbde75 JF |
3 | * This program is free software; you can redistribute it and/or |
4 | * modify it under the terms of the GNU General Public License as | |
5 | * published by the Free Software Foundation; either version 2 of | |
6 | * the License, or (at your option) any later version. | |
192d9a60 JF |
7 | * |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | */ | |
b801d8b2 | 13 | |
b76c2afc | 14 | #ifndef VERSION |
8c11094f | 15 | #define VERSION "tig-0.3" |
b76c2afc JF |
16 | #endif |
17 | ||
8855ada4 JF |
18 | #ifndef DEBUG |
19 | #define NDEBUG | |
20 | #endif | |
21 | ||
22f66b0a | 22 | #include <assert.h> |
4c6fabc2 | 23 | #include <errno.h> |
22f66b0a JF |
24 | #include <ctype.h> |
25 | #include <signal.h> | |
b801d8b2 | 26 | #include <stdarg.h> |
b801d8b2 | 27 | #include <stdio.h> |
22f66b0a | 28 | #include <stdlib.h> |
b801d8b2 | 29 | #include <string.h> |
6908bdbd | 30 | #include <unistd.h> |
b76c2afc | 31 | #include <time.h> |
b801d8b2 JF |
32 | |
33 | #include <curses.h> | |
b801d8b2 JF |
34 | |
35 | static void die(const char *err, ...); | |
36 | static void report(const char *msg, ...); | |
4a63c884 | 37 | static int read_properties(FILE *pipe, const char *separators, int (*read)(char *, int, char *, int)); |
1ba2ae4b | 38 | static void set_nonblocking_input(bool loading); |
10e290ee | 39 | static size_t utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed); |
24b5b3e0 | 40 | static void load_help_page(void); |
6b161b31 JF |
41 | |
42 | #define ABS(x) ((x) >= 0 ? (x) : -(x)) | |
43 | #define MIN(x, y) ((x) < (y) ? (x) : (y)) | |
44 | ||
45 | #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0])) | |
46 | #define STRING_SIZE(x) (sizeof(x) - 1) | |
b76c2afc | 47 | |
2e8488b4 JF |
48 | #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */ |
49 | #define SIZEOF_CMD 1024 /* Size of command buffer. */ | |
b801d8b2 | 50 | |
82e78006 JF |
51 | /* This color name can be used to refer to the default term colors. */ |
52 | #define COLOR_DEFAULT (-1) | |
78c70acd | 53 | |
82e78006 | 54 | /* The format and size of the date column in the main view. */ |
4c6fabc2 | 55 | #define DATE_FORMAT "%Y-%m-%d %H:%M" |
6b161b31 | 56 | #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ") |
4c6fabc2 | 57 | |
10e290ee JF |
58 | #define AUTHOR_COLS 20 |
59 | ||
a28bcc22 | 60 | /* The default interval between line numbers. */ |
4a2909a7 | 61 | #define NUMBER_INTERVAL 1 |
82e78006 | 62 | |
6706b2ba JF |
63 | #define TABSIZE 8 |
64 | ||
a28bcc22 JF |
65 | #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3) |
66 | ||
8eb62770 JF |
67 | #define TIG_LS_REMOTE \ |
68 | "git ls-remote . 2>/dev/null" | |
69 | ||
70 | #define TIG_DIFF_CMD \ | |
71 | "git show --patch-with-stat --find-copies-harder -B -C %s" | |
72 | ||
73 | #define TIG_LOG_CMD \ | |
74 | "git log --cc --stat -n100 %s" | |
75 | ||
76 | #define TIG_MAIN_CMD \ | |
77 | "git log --topo-order --stat --pretty=raw %s" | |
78 | ||
79 | /* XXX: Needs to be defined to the empty string. */ | |
80 | #define TIG_HELP_CMD "" | |
81 | #define TIG_PAGER_CMD "" | |
82 | ||
8855ada4 | 83 | /* Some ascii-shorthands fitted into the ncurses namespace. */ |
a28bcc22 JF |
84 | #define KEY_TAB '\t' |
85 | #define KEY_RETURN '\r' | |
4a2909a7 JF |
86 | #define KEY_ESC 27 |
87 | ||
6706b2ba | 88 | |
c34d9c9f | 89 | struct ref { |
468876c9 JF |
90 | char *name; /* Ref name; tag or head names are shortened. */ |
91 | char id[41]; /* Commit SHA1 ID */ | |
92 | unsigned int tag:1; /* Is it a tag? */ | |
93 | unsigned int next:1; /* For ref lists: are there more refs? */ | |
c34d9c9f JF |
94 | }; |
95 | ||
ff26aa29 | 96 | static struct ref **get_refs(char *id); |
4c6fabc2 | 97 | |
660e09ad JF |
98 | struct int_map { |
99 | const char *name; | |
100 | int namelen; | |
101 | int value; | |
102 | }; | |
103 | ||
104 | static int | |
105 | set_from_int_map(struct int_map *map, size_t map_size, | |
106 | int *value, const char *name, int namelen) | |
107 | { | |
108 | ||
109 | int i; | |
110 | ||
111 | for (i = 0; i < map_size; i++) | |
112 | if (namelen == map[i].namelen && | |
113 | !strncasecmp(name, map[i].name, namelen)) { | |
114 | *value = map[i].value; | |
115 | return OK; | |
116 | } | |
117 | ||
118 | return ERR; | |
119 | } | |
120 | ||
6706b2ba | 121 | |
03a93dbb JF |
122 | /* |
123 | * String helpers | |
124 | */ | |
78c70acd | 125 | |
82e78006 | 126 | static inline void |
4685845e | 127 | string_ncopy(char *dst, const char *src, int dstlen) |
82e78006 JF |
128 | { |
129 | strncpy(dst, src, dstlen - 1); | |
130 | dst[dstlen - 1] = 0; | |
03a93dbb | 131 | |
82e78006 JF |
132 | } |
133 | ||
134 | /* Shorthand for safely copying into a fixed buffer. */ | |
135 | #define string_copy(dst, src) \ | |
136 | string_ncopy(dst, src, sizeof(dst)) | |
137 | ||
4a63c884 JF |
138 | static char * |
139 | chomp_string(char *name) | |
140 | { | |
141 | int namelen; | |
142 | ||
143 | while (isspace(*name)) | |
144 | name++; | |
145 | ||
146 | namelen = strlen(name) - 1; | |
147 | while (namelen > 0 && isspace(name[namelen])) | |
148 | name[namelen--] = 0; | |
149 | ||
150 | return name; | |
151 | } | |
152 | ||
cc2d1364 JF |
153 | static bool |
154 | string_nformat(char *buf, size_t bufsize, int *bufpos, const char *fmt, ...) | |
155 | { | |
156 | va_list args; | |
157 | int pos = bufpos ? *bufpos : 0; | |
158 | ||
159 | va_start(args, fmt); | |
160 | pos += vsnprintf(buf + pos, bufsize - pos, fmt, args); | |
161 | va_end(args); | |
162 | ||
163 | if (bufpos) | |
164 | *bufpos = pos; | |
165 | ||
166 | return pos >= bufsize ? FALSE : TRUE; | |
167 | } | |
168 | ||
169 | #define string_format(buf, fmt, args...) \ | |
170 | string_nformat(buf, sizeof(buf), NULL, fmt, args) | |
171 | ||
172 | #define string_format_from(buf, from, fmt, args...) \ | |
173 | string_nformat(buf, sizeof(buf), from, fmt, args) | |
6706b2ba | 174 | |
03a93dbb JF |
175 | /* Shell quoting |
176 | * | |
177 | * NOTE: The following is a slightly modified copy of the git project's shell | |
178 | * quoting routines found in the quote.c file. | |
179 | * | |
180 | * Help to copy the thing properly quoted for the shell safety. any single | |
181 | * quote is replaced with '\'', any exclamation point is replaced with '\!', | |
182 | * and the whole thing is enclosed in a | |
183 | * | |
184 | * E.g. | |
185 | * original sq_quote result | |
186 | * name ==> name ==> 'name' | |
187 | * a b ==> a b ==> 'a b' | |
188 | * a'b ==> a'\''b ==> 'a'\''b' | |
189 | * a!b ==> a'\!'b ==> 'a'\!'b' | |
190 | */ | |
191 | ||
192 | static size_t | |
193 | sq_quote(char buf[SIZEOF_CMD], size_t bufsize, const char *src) | |
194 | { | |
195 | char c; | |
196 | ||
a9274b95 | 197 | #define BUFPUT(x) do { if (bufsize < SIZEOF_CMD) buf[bufsize++] = (x); } while (0) |
03a93dbb JF |
198 | |
199 | BUFPUT('\''); | |
200 | while ((c = *src++)) { | |
201 | if (c == '\'' || c == '!') { | |
202 | BUFPUT('\''); | |
203 | BUFPUT('\\'); | |
204 | BUFPUT(c); | |
205 | BUFPUT('\''); | |
206 | } else { | |
207 | BUFPUT(c); | |
208 | } | |
209 | } | |
210 | BUFPUT('\''); | |
211 | ||
212 | return bufsize; | |
213 | } | |
214 | ||
82e78006 | 215 | |
24b5b3e0 JF |
216 | /* |
217 | * User requests | |
218 | */ | |
219 | ||
220 | #define REQ_INFO \ | |
221 | /* XXX: Keep the view request first and in sync with views[]. */ \ | |
222 | REQ_GROUP("View switching") \ | |
223 | REQ_(VIEW_MAIN, "Show main view"), \ | |
224 | REQ_(VIEW_DIFF, "Show diff view"), \ | |
225 | REQ_(VIEW_LOG, "Show log view"), \ | |
226 | REQ_(VIEW_HELP, "Show help page"), \ | |
227 | REQ_(VIEW_PAGER, "Show pager view"), \ | |
228 | \ | |
229 | REQ_GROUP("View manipulation") \ | |
230 | REQ_(ENTER, "Enter current line and scroll"), \ | |
231 | REQ_(NEXT, "Move to next"), \ | |
232 | REQ_(PREVIOUS, "Move to previous"), \ | |
233 | REQ_(VIEW_NEXT, "Move focus to next view"), \ | |
234 | REQ_(VIEW_CLOSE, "Close the current view"), \ | |
235 | REQ_(QUIT, "Close all views and quit"), \ | |
236 | \ | |
237 | REQ_GROUP("Cursor navigation") \ | |
238 | REQ_(MOVE_UP, "Move cursor one line up"), \ | |
239 | REQ_(MOVE_DOWN, "Move cursor one line down"), \ | |
240 | REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \ | |
241 | REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \ | |
242 | REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \ | |
243 | REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \ | |
244 | \ | |
245 | REQ_GROUP("Scrolling") \ | |
246 | REQ_(SCROLL_LINE_UP, "Scroll one line up"), \ | |
247 | REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \ | |
248 | REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \ | |
249 | REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \ | |
250 | \ | |
251 | REQ_GROUP("Misc") \ | |
252 | REQ_(PROMPT, "Bring up the prompt"), \ | |
253 | REQ_(SCREEN_UPDATE, "Update the screen"), \ | |
254 | REQ_(SCREEN_REDRAW, "Redraw the screen"), \ | |
255 | REQ_(SCREEN_RESIZE, "Resize the screen"), \ | |
256 | REQ_(SHOW_VERSION, "Show version information"), \ | |
257 | REQ_(STOP_LOADING, "Stop all loading views"), \ | |
258 | REQ_(TOGGLE_LINENO, "Toggle line numbers"), | |
259 | ||
260 | ||
261 | /* User action requests. */ | |
262 | enum request { | |
263 | #define REQ_GROUP(help) | |
264 | #define REQ_(req, help) REQ_##req | |
265 | ||
266 | /* Offset all requests to avoid conflicts with ncurses getch values. */ | |
267 | REQ_OFFSET = KEY_MAX + 1, | |
268 | REQ_INFO | |
269 | ||
270 | #undef REQ_GROUP | |
271 | #undef REQ_ | |
272 | }; | |
273 | ||
274 | struct request_info { | |
275 | enum request request; | |
276 | char *help; | |
277 | }; | |
278 | ||
279 | static struct request_info req_info[] = { | |
280 | #define REQ_GROUP(help) { 0, (help) }, | |
281 | #define REQ_(req, help) { REQ_##req, (help) } | |
282 | REQ_INFO | |
283 | #undef REQ_GROUP | |
284 | #undef REQ_ | |
285 | }; | |
286 | ||
8eb62770 JF |
287 | /* |
288 | * Options | |
289 | */ | |
b76c2afc | 290 | |
4b8c01a3 JF |
291 | static const char usage[] = |
292 | VERSION " (" __DATE__ ")\n" | |
293 | "\n" | |
294 | "Usage: tig [options]\n" | |
295 | " or: tig [options] [--] [git log options]\n" | |
296 | " or: tig [options] log [git log options]\n" | |
297 | " or: tig [options] diff [git diff options]\n" | |
298 | " or: tig [options] show [git show options]\n" | |
299 | " or: tig [options] < [git command output]\n" | |
300 | "\n" | |
301 | "Options:\n" | |
302 | " -l Start up in log view\n" | |
303 | " -d Start up in diff view\n" | |
304 | " -n[I], --line-number[=I] Show line numbers with given interval\n" | |
b3c965c9 | 305 | " -b[N], --tab-size[=N] Set number of spaces for tab expansion\n" |
4b8c01a3 JF |
306 | " -- Mark end of tig options\n" |
307 | " -v, --version Show version and exit\n" | |
308 | " -h, --help Show help message and exit\n"; | |
309 | ||
6706b2ba JF |
310 | /* Option and state variables. */ |
311 | static bool opt_line_number = FALSE; | |
2e8488b4 | 312 | static int opt_num_interval = NUMBER_INTERVAL; |
6706b2ba | 313 | static int opt_tab_size = TABSIZE; |
6b161b31 | 314 | static enum request opt_request = REQ_VIEW_MAIN; |
03a93dbb | 315 | static char opt_cmd[SIZEOF_CMD] = ""; |
9989bf60 JF |
316 | static char opt_encoding[20] = ""; |
317 | static bool opt_utf8 = TRUE; | |
6908bdbd | 318 | static FILE *opt_pipe = NULL; |
b76c2afc | 319 | |
6dbf6c19 JF |
320 | enum option_type { |
321 | OPT_NONE, | |
322 | OPT_INT, | |
323 | }; | |
324 | ||
325 | static bool | |
326 | check_option(char *opt, char short_name, char *name, enum option_type type, ...) | |
327 | { | |
328 | va_list args; | |
329 | char *value = ""; | |
330 | int *number; | |
331 | ||
332 | if (opt[0] != '-') | |
333 | return FALSE; | |
334 | ||
335 | if (opt[1] == '-') { | |
336 | int namelen = strlen(name); | |
337 | ||
338 | opt += 2; | |
339 | ||
340 | if (strncmp(opt, name, namelen)) | |
341 | return FALSE; | |
342 | ||
343 | if (opt[namelen] == '=') | |
344 | value = opt + namelen + 1; | |
345 | ||
346 | } else { | |
347 | if (!short_name || opt[1] != short_name) | |
348 | return FALSE; | |
349 | value = opt + 2; | |
350 | } | |
351 | ||
352 | va_start(args, type); | |
353 | if (type == OPT_INT) { | |
354 | number = va_arg(args, int *); | |
355 | if (isdigit(*value)) | |
356 | *number = atoi(value); | |
357 | } | |
358 | va_end(args); | |
359 | ||
360 | return TRUE; | |
361 | } | |
362 | ||
b76c2afc | 363 | /* Returns the index of log or diff command or -1 to exit. */ |
8855ada4 | 364 | static bool |
b76c2afc JF |
365 | parse_options(int argc, char *argv[]) |
366 | { | |
367 | int i; | |
368 | ||
369 | for (i = 1; i < argc; i++) { | |
370 | char *opt = argv[i]; | |
371 | ||
6b161b31 | 372 | if (!strcmp(opt, "-l")) { |
4a2909a7 | 373 | opt_request = REQ_VIEW_LOG; |
6b161b31 JF |
374 | continue; |
375 | } | |
b76c2afc | 376 | |
6b161b31 | 377 | if (!strcmp(opt, "-d")) { |
4a2909a7 | 378 | opt_request = REQ_VIEW_DIFF; |
6b161b31 JF |
379 | continue; |
380 | } | |
b76c2afc | 381 | |
6dbf6c19 | 382 | if (check_option(opt, 'n', "line-number", OPT_INT, &opt_num_interval)) { |
6b161b31 JF |
383 | opt_line_number = TRUE; |
384 | continue; | |
385 | } | |
b76c2afc | 386 | |
6dbf6c19 JF |
387 | if (check_option(opt, 'b', "tab-size", OPT_INT, &opt_tab_size)) { |
388 | opt_tab_size = MIN(opt_tab_size, TABSIZE); | |
6706b2ba JF |
389 | continue; |
390 | } | |
391 | ||
6dbf6c19 | 392 | if (check_option(opt, 'v', "version", OPT_NONE)) { |
b76c2afc | 393 | printf("tig version %s\n", VERSION); |
8855ada4 | 394 | return FALSE; |
6b161b31 | 395 | } |
b76c2afc | 396 | |
6dbf6c19 | 397 | if (check_option(opt, 'h', "help", OPT_NONE)) { |
4b8c01a3 JF |
398 | printf(usage); |
399 | return FALSE; | |
400 | } | |
401 | ||
6908bdbd JF |
402 | if (!strcmp(opt, "--")) { |
403 | i++; | |
404 | break; | |
405 | } | |
03a93dbb | 406 | |
8855ada4 JF |
407 | if (!strcmp(opt, "log") || |
408 | !strcmp(opt, "diff") || | |
409 | !strcmp(opt, "show")) { | |
410 | opt_request = opt[0] == 'l' | |
411 | ? REQ_VIEW_LOG : REQ_VIEW_DIFF; | |
412 | break; | |
413 | } | |
414 | ||
03a93dbb | 415 | if (opt[0] && opt[0] != '-') |
6908bdbd | 416 | break; |
6b161b31 JF |
417 | |
418 | die("unknown command '%s'", opt); | |
b76c2afc JF |
419 | } |
420 | ||
6908bdbd | 421 | if (!isatty(STDIN_FILENO)) { |
6908bdbd JF |
422 | opt_request = REQ_VIEW_PAGER; |
423 | opt_pipe = stdin; | |
424 | ||
425 | } else if (i < argc) { | |
426 | size_t buf_size; | |
427 | ||
6908bdbd | 428 | if (opt_request == REQ_VIEW_MAIN) |
8855ada4 JF |
429 | /* XXX: This is vulnerable to the user overriding |
430 | * options required for the main view parser. */ | |
6908bdbd JF |
431 | string_copy(opt_cmd, "git log --stat --pretty=raw"); |
432 | else | |
433 | string_copy(opt_cmd, "git"); | |
434 | buf_size = strlen(opt_cmd); | |
435 | ||
436 | while (buf_size < sizeof(opt_cmd) && i < argc) { | |
437 | opt_cmd[buf_size++] = ' '; | |
438 | buf_size = sq_quote(opt_cmd, buf_size, argv[i++]); | |
439 | } | |
440 | ||
441 | if (buf_size >= sizeof(opt_cmd)) | |
442 | die("command too long"); | |
443 | ||
444 | opt_cmd[buf_size] = 0; | |
445 | ||
446 | } | |
447 | ||
afdc35b3 JF |
448 | if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8")) |
449 | opt_utf8 = FALSE; | |
450 | ||
8855ada4 | 451 | return TRUE; |
b76c2afc JF |
452 | } |
453 | ||
454 | ||
660e09ad JF |
455 | static struct int_map color_map[] = { |
456 | #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name } | |
457 | COLOR_MAP(DEFAULT), | |
458 | COLOR_MAP(BLACK), | |
459 | COLOR_MAP(BLUE), | |
460 | COLOR_MAP(CYAN), | |
461 | COLOR_MAP(GREEN), | |
462 | COLOR_MAP(MAGENTA), | |
463 | COLOR_MAP(RED), | |
464 | COLOR_MAP(WHITE), | |
465 | COLOR_MAP(YELLOW), | |
466 | }; | |
467 | ||
660e09ad JF |
468 | static struct int_map attr_map[] = { |
469 | #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name } | |
470 | ATTR_MAP(NORMAL), | |
471 | ATTR_MAP(BLINK), | |
472 | ATTR_MAP(BOLD), | |
473 | ATTR_MAP(DIM), | |
474 | ATTR_MAP(REVERSE), | |
475 | ATTR_MAP(STANDOUT), | |
476 | ATTR_MAP(UNDERLINE), | |
477 | }; | |
478 | ||
2e8488b4 | 479 | #define LINE_INFO \ |
660e09ad | 480 | LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
481 | LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
482 | LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
483 | LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \ | |
660e09ad JF |
484 | LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
485 | LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
486 | LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
487 | LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
488 | LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
489 | LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
490 | LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
491 | LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
492 | LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
493 | LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
6908bdbd | 494 | LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
8855ada4 | 495 | LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
6908bdbd JF |
496 | LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
497 | LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
8855ada4 JF |
498 | LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
499 | LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \ | |
7b99a34c | 500 | LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
501 | LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \ |
502 | LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
503 | LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \ | |
8855ada4 | 504 | LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \ |
a28bcc22 | 505 | LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
a28bcc22 | 506 | LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \ |
a28bcc22 JF |
507 | LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \ |
508 | LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \ | |
509 | LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
6b161b31 JF |
510 | LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \ |
511 | LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \ | |
a28bcc22 JF |
512 | LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \ |
513 | LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \ | |
514 | LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \ | |
c34d9c9f JF |
515 | LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \ |
516 | LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \ | |
660e09ad | 517 | LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \ |
660e09ad JF |
518 | |
519 | ||
520 | /* | |
521 | * Line-oriented content detection. | |
522 | */ | |
2e8488b4 | 523 | |
78c70acd | 524 | enum line_type { |
2e8488b4 JF |
525 | #define LINE(type, line, fg, bg, attr) \ |
526 | LINE_##type | |
527 | LINE_INFO | |
528 | #undef LINE | |
78c70acd JF |
529 | }; |
530 | ||
531 | struct line_info { | |
660e09ad JF |
532 | const char *name; /* Option name. */ |
533 | int namelen; /* Size of option name. */ | |
4685845e | 534 | const char *line; /* The start of line to match. */ |
2e8488b4 JF |
535 | int linelen; /* Size of string to match. */ |
536 | int fg, bg, attr; /* Color and text attributes for the lines. */ | |
78c70acd JF |
537 | }; |
538 | ||
2e8488b4 | 539 | static struct line_info line_info[] = { |
78c70acd | 540 | #define LINE(type, line, fg, bg, attr) \ |
660e09ad | 541 | { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) } |
2e8488b4 JF |
542 | LINE_INFO |
543 | #undef LINE | |
78c70acd JF |
544 | }; |
545 | ||
2e8488b4 JF |
546 | static enum line_type |
547 | get_line_type(char *line) | |
78c70acd JF |
548 | { |
549 | int linelen = strlen(line); | |
a28bcc22 | 550 | enum line_type type; |
78c70acd | 551 | |
a28bcc22 | 552 | for (type = 0; type < ARRAY_SIZE(line_info); type++) |
2e8488b4 | 553 | /* Case insensitive search matches Signed-off-by lines better. */ |
a28bcc22 JF |
554 | if (linelen >= line_info[type].linelen && |
555 | !strncasecmp(line_info[type].line, line, line_info[type].linelen)) | |
556 | return type; | |
78c70acd | 557 | |
2e8488b4 | 558 | return LINE_DEFAULT; |
78c70acd JF |
559 | } |
560 | ||
2e8488b4 | 561 | static inline int |
78c70acd JF |
562 | get_line_attr(enum line_type type) |
563 | { | |
2e8488b4 JF |
564 | assert(type < ARRAY_SIZE(line_info)); |
565 | return COLOR_PAIR(type) | line_info[type].attr; | |
78c70acd JF |
566 | } |
567 | ||
660e09ad JF |
568 | static struct line_info * |
569 | get_line_info(char *name, int namelen) | |
570 | { | |
571 | enum line_type type; | |
572 | int i; | |
573 | ||
574 | /* Diff-Header -> DIFF_HEADER */ | |
575 | for (i = 0; i < namelen; i++) { | |
576 | if (name[i] == '-') | |
577 | name[i] = '_'; | |
578 | else if (name[i] == '.') | |
579 | name[i] = '_'; | |
580 | } | |
581 | ||
582 | for (type = 0; type < ARRAY_SIZE(line_info); type++) | |
583 | if (namelen == line_info[type].namelen && | |
584 | !strncasecmp(line_info[type].name, name, namelen)) | |
585 | return &line_info[type]; | |
586 | ||
587 | return NULL; | |
588 | } | |
589 | ||
78c70acd JF |
590 | static void |
591 | init_colors(void) | |
592 | { | |
82e78006 JF |
593 | int default_bg = COLOR_BLACK; |
594 | int default_fg = COLOR_WHITE; | |
a28bcc22 | 595 | enum line_type type; |
78c70acd JF |
596 | |
597 | start_color(); | |
598 | ||
599 | if (use_default_colors() != ERR) { | |
82e78006 JF |
600 | default_bg = -1; |
601 | default_fg = -1; | |
78c70acd JF |
602 | } |
603 | ||
a28bcc22 JF |
604 | for (type = 0; type < ARRAY_SIZE(line_info); type++) { |
605 | struct line_info *info = &line_info[type]; | |
82e78006 JF |
606 | int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg; |
607 | int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg; | |
78c70acd | 608 | |
a28bcc22 | 609 | init_pair(type, fg, bg); |
78c70acd JF |
610 | } |
611 | } | |
612 | ||
fe7233c3 JF |
613 | struct line { |
614 | enum line_type type; | |
615 | void *data; /* User data */ | |
616 | }; | |
617 | ||
78c70acd | 618 | |
1899507c JF |
619 | /* |
620 | * User config file handling. | |
621 | */ | |
622 | ||
660e09ad JF |
623 | #define set_color(color, name, namelen) \ |
624 | set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, namelen) | |
625 | ||
626 | #define set_attribute(attr, name, namelen) \ | |
627 | set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, namelen) | |
628 | ||
3c3801c2 JF |
629 | static int config_lineno; |
630 | static bool config_errors; | |
631 | static char *config_msg; | |
632 | ||
660e09ad | 633 | static int |
3c3801c2 | 634 | set_option(char *opt, int optlen, char *value, int valuelen) |
660e09ad | 635 | { |
660e09ad JF |
636 | /* Reads: "color" object fgcolor bgcolor [attr] */ |
637 | if (!strcmp(opt, "color")) { | |
638 | struct line_info *info; | |
639 | ||
640 | value = chomp_string(value); | |
641 | valuelen = strcspn(value, " \t"); | |
642 | info = get_line_info(value, valuelen); | |
3c3801c2 JF |
643 | if (!info) { |
644 | config_msg = "Unknown color name"; | |
660e09ad | 645 | return ERR; |
3c3801c2 | 646 | } |
660e09ad JF |
647 | |
648 | value = chomp_string(value + valuelen); | |
649 | valuelen = strcspn(value, " \t"); | |
3c3801c2 JF |
650 | if (set_color(&info->fg, value, valuelen) == ERR) { |
651 | config_msg = "Unknown color"; | |
660e09ad | 652 | return ERR; |
3c3801c2 | 653 | } |
660e09ad JF |
654 | |
655 | value = chomp_string(value + valuelen); | |
656 | valuelen = strcspn(value, " \t"); | |
3c3801c2 JF |
657 | if (set_color(&info->bg, value, valuelen) == ERR) { |
658 | config_msg = "Unknown color"; | |
660e09ad | 659 | return ERR; |
3c3801c2 | 660 | } |
660e09ad JF |
661 | |
662 | value = chomp_string(value + valuelen); | |
663 | if (*value && | |
3c3801c2 JF |
664 | set_attribute(&info->attr, value, strlen(value)) == ERR) { |
665 | config_msg = "Unknown attribute"; | |
660e09ad | 666 | return ERR; |
3c3801c2 | 667 | } |
660e09ad JF |
668 | |
669 | return OK; | |
670 | } | |
671 | ||
672 | return ERR; | |
673 | } | |
674 | ||
675 | static int | |
3c3801c2 JF |
676 | read_option(char *opt, int optlen, char *value, int valuelen) |
677 | { | |
678 | config_lineno++; | |
679 | config_msg = "Internal error"; | |
680 | ||
681 | optlen = strcspn(opt, "#;"); | |
682 | if (optlen == 0) { | |
683 | /* The whole line is a commend or empty. */ | |
684 | return OK; | |
685 | ||
686 | } else if (opt[optlen] != 0) { | |
687 | /* Part of the option name is a comment, so the value part | |
688 | * should be ignored. */ | |
689 | valuelen = 0; | |
690 | opt[optlen] = value[valuelen] = 0; | |
691 | } else { | |
692 | /* Else look for comment endings in the value. */ | |
693 | valuelen = strcspn(value, "#;"); | |
694 | value[valuelen] = 0; | |
695 | } | |
696 | ||
697 | if (set_option(opt, optlen, value, valuelen) == ERR) { | |
698 | fprintf(stderr, "Error on line %d, near '%.*s' option: %s\n", | |
699 | config_lineno, optlen, opt, config_msg); | |
700 | config_errors = TRUE; | |
701 | } | |
702 | ||
703 | /* Always keep going if errors are encountered. */ | |
704 | return OK; | |
705 | } | |
706 | ||
707 | static int | |
660e09ad JF |
708 | load_options(void) |
709 | { | |
710 | char *home = getenv("HOME"); | |
711 | char buf[1024]; | |
712 | FILE *file; | |
713 | ||
3c3801c2 JF |
714 | config_lineno = 0; |
715 | config_errors = FALSE; | |
716 | ||
cc2d1364 | 717 | if (!home || !string_format(buf, "%s/.tigrc", home)) |
660e09ad JF |
718 | return ERR; |
719 | ||
720 | /* It's ok that the file doesn't exist. */ | |
721 | file = fopen(buf, "r"); | |
722 | if (!file) | |
723 | return OK; | |
724 | ||
3c3801c2 JF |
725 | if (read_properties(file, " \t", read_option) == ERR || |
726 | config_errors == TRUE) | |
727 | fprintf(stderr, "Errors while loading %s.\n", buf); | |
728 | ||
729 | return OK; | |
660e09ad JF |
730 | } |
731 | ||
732 | ||
d839253b | 733 | /* |
468876c9 | 734 | * The viewer |
d839253b | 735 | */ |
c2124ccd JF |
736 | |
737 | struct view; | |
fe7233c3 | 738 | struct view_ops; |
c2124ccd JF |
739 | |
740 | /* The display array of active views and the index of the current view. */ | |
741 | static struct view *display[2]; | |
742 | static unsigned int current_view; | |
743 | ||
744 | #define foreach_view(view, i) \ | |
745 | for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++) | |
746 | ||
9f41488f | 747 | #define displayed_views() (display[1] != NULL ? 2 : 1) |
c2124ccd | 748 | |
d839253b | 749 | /* Current head and commit ID */ |
c2124ccd JF |
750 | static char ref_commit[SIZEOF_REF] = "HEAD"; |
751 | static char ref_head[SIZEOF_REF] = "HEAD"; | |
752 | ||
b801d8b2 | 753 | struct view { |
03a93dbb | 754 | const char *name; /* View name */ |
4685845e TH |
755 | const char *cmd_fmt; /* Default command line format */ |
756 | const char *cmd_env; /* Command line set via environment */ | |
757 | const char *id; /* Points to either of ref_{head,commit} */ | |
6b161b31 | 758 | |
fe7233c3 | 759 | struct view_ops *ops; /* View operations */ |
22f66b0a | 760 | |
03a93dbb | 761 | char cmd[SIZEOF_CMD]; /* Command buffer */ |
49f2b43f JF |
762 | char ref[SIZEOF_REF]; /* Hovered commit reference */ |
763 | char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */ | |
2e8488b4 | 764 | |
8855ada4 JF |
765 | int height, width; /* The width and height of the main window */ |
766 | WINDOW *win; /* The main window */ | |
767 | WINDOW *title; /* The title window living below the main window */ | |
b801d8b2 JF |
768 | |
769 | /* Navigation */ | |
770 | unsigned long offset; /* Offset of the window top */ | |
771 | unsigned long lineno; /* Current line number */ | |
772 | ||
f6da0b66 JF |
773 | /* If non-NULL, points to the view that opened this view. If this view |
774 | * is closed tig will switch back to the parent view. */ | |
775 | struct view *parent; | |
776 | ||
b801d8b2 JF |
777 | /* Buffering */ |
778 | unsigned long lines; /* Total number of lines */ | |
fe7233c3 | 779 | struct line *line; /* Line index */ |
e2c01617 | 780 | unsigned long line_size;/* Total number of allocated lines */ |
8855ada4 | 781 | unsigned int digits; /* Number of digits in the lines member. */ |
b801d8b2 JF |
782 | |
783 | /* Loading */ | |
784 | FILE *pipe; | |
2e8488b4 | 785 | time_t start_time; |
b801d8b2 JF |
786 | }; |
787 | ||
fe7233c3 JF |
788 | struct view_ops { |
789 | /* What type of content being displayed. Used in the title bar. */ | |
790 | const char *type; | |
791 | /* Draw one line; @lineno must be < view->height. */ | |
792 | bool (*draw)(struct view *view, struct line *line, unsigned int lineno); | |
793 | /* Read one line; updates view->line. */ | |
701e4f5d | 794 | bool (*read)(struct view *view, char *data); |
fe7233c3 JF |
795 | /* Depending on view, change display based on current line. */ |
796 | bool (*enter)(struct view *view, struct line *line); | |
797 | }; | |
798 | ||
6b161b31 JF |
799 | static struct view_ops pager_ops; |
800 | static struct view_ops main_ops; | |
a28bcc22 | 801 | |
95d7ddcd JF |
802 | #define VIEW_STR(name, cmd, env, ref, ops) \ |
803 | { name, cmd, #env, ref, ops } | |
1ba2ae4b | 804 | |
95d7ddcd JF |
805 | #define VIEW_(id, name, ops, ref) \ |
806 | VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops) | |
1ba2ae4b | 807 | |
c2124ccd | 808 | |
b801d8b2 | 809 | static struct view views[] = { |
95d7ddcd JF |
810 | VIEW_(MAIN, "main", &main_ops, ref_head), |
811 | VIEW_(DIFF, "diff", &pager_ops, ref_commit), | |
812 | VIEW_(LOG, "log", &pager_ops, ref_head), | |
813 | VIEW_(HELP, "help", &pager_ops, "static"), | |
814 | VIEW_(PAGER, "pager", &pager_ops, "static"), | |
b801d8b2 JF |
815 | }; |
816 | ||
a28bcc22 JF |
817 | #define VIEW(req) (&views[(req) - REQ_OFFSET - 1]) |
818 | ||
4c6fabc2 | 819 | |
fe7233c3 JF |
820 | static bool |
821 | draw_view_line(struct view *view, unsigned int lineno) | |
822 | { | |
823 | if (view->offset + lineno >= view->lines) | |
824 | return FALSE; | |
825 | ||
826 | return view->ops->draw(view, &view->line[view->offset + lineno], lineno); | |
827 | } | |
828 | ||
b801d8b2 | 829 | static void |
82e78006 | 830 | redraw_view_from(struct view *view, int lineno) |
b801d8b2 | 831 | { |
82e78006 | 832 | assert(0 <= lineno && lineno < view->height); |
b801d8b2 | 833 | |
82e78006 | 834 | for (; lineno < view->height; lineno++) { |
fe7233c3 | 835 | if (!draw_view_line(view, lineno)) |
fd85fef1 | 836 | break; |
b801d8b2 JF |
837 | } |
838 | ||
839 | redrawwin(view->win); | |
840 | wrefresh(view->win); | |
841 | } | |
842 | ||
b76c2afc | 843 | static void |
82e78006 JF |
844 | redraw_view(struct view *view) |
845 | { | |
846 | wclear(view->win); | |
847 | redraw_view_from(view, 0); | |
848 | } | |
849 | ||
c2124ccd | 850 | |
6b161b31 | 851 | static void |
81030ec8 JF |
852 | update_view_title(struct view *view) |
853 | { | |
854 | if (view == display[current_view]) | |
855 | wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS)); | |
856 | else | |
857 | wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR)); | |
858 | ||
859 | werase(view->title); | |
860 | wmove(view->title, 0, 0); | |
861 | ||
81030ec8 JF |
862 | if (*view->ref) |
863 | wprintw(view->title, "[%s] %s", view->name, view->ref); | |
864 | else | |
865 | wprintw(view->title, "[%s]", view->name); | |
866 | ||
c19f8017 JF |
867 | if (view->lines || view->pipe) { |
868 | unsigned int lines = view->lines | |
869 | ? (view->lineno + 1) * 100 / view->lines | |
870 | : 0; | |
871 | ||
81030ec8 JF |
872 | wprintw(view->title, " - %s %d of %d (%d%%)", |
873 | view->ops->type, | |
874 | view->lineno + 1, | |
875 | view->lines, | |
c19f8017 | 876 | lines); |
81030ec8 JF |
877 | } |
878 | ||
f97f4012 JF |
879 | if (view->pipe) { |
880 | time_t secs = time(NULL) - view->start_time; | |
881 | ||
882 | /* Three git seconds are a long time ... */ | |
883 | if (secs > 2) | |
884 | wprintw(view->title, " %lds", secs); | |
885 | } | |
886 | ||
976447f8 | 887 | wmove(view->title, 0, view->width - 1); |
81030ec8 JF |
888 | wrefresh(view->title); |
889 | } | |
890 | ||
891 | static void | |
6b161b31 | 892 | resize_display(void) |
b76c2afc | 893 | { |
03a93dbb | 894 | int offset, i; |
6b161b31 JF |
895 | struct view *base = display[0]; |
896 | struct view *view = display[1] ? display[1] : display[0]; | |
b76c2afc | 897 | |
6b161b31 | 898 | /* Setup window dimensions */ |
b76c2afc | 899 | |
03a93dbb | 900 | getmaxyx(stdscr, base->height, base->width); |
b76c2afc | 901 | |
6b161b31 | 902 | /* Make room for the status window. */ |
03a93dbb | 903 | base->height -= 1; |
6b161b31 JF |
904 | |
905 | if (view != base) { | |
03a93dbb JF |
906 | /* Horizontal split. */ |
907 | view->width = base->width; | |
6b161b31 JF |
908 | view->height = SCALE_SPLIT_VIEW(base->height); |
909 | base->height -= view->height; | |
910 | ||
911 | /* Make room for the title bar. */ | |
912 | view->height -= 1; | |
913 | } | |
914 | ||
915 | /* Make room for the title bar. */ | |
916 | base->height -= 1; | |
917 | ||
918 | offset = 0; | |
919 | ||
920 | foreach_view (view, i) { | |
b76c2afc | 921 | if (!view->win) { |
c19f8017 | 922 | view->win = newwin(view->height, 0, offset, 0); |
6b161b31 JF |
923 | if (!view->win) |
924 | die("Failed to create %s view", view->name); | |
925 | ||
926 | scrollok(view->win, TRUE); | |
927 | ||
928 | view->title = newwin(1, 0, offset + view->height, 0); | |
929 | if (!view->title) | |
930 | die("Failed to create title window"); | |
931 | ||
932 | } else { | |
c19f8017 | 933 | wresize(view->win, view->height, view->width); |
6b161b31 JF |
934 | mvwin(view->win, offset, 0); |
935 | mvwin(view->title, offset + view->height, 0); | |
a28bcc22 | 936 | } |
a28bcc22 | 937 | |
6b161b31 | 938 | offset += view->height + 1; |
b76c2afc | 939 | } |
6b161b31 | 940 | } |
b76c2afc | 941 | |
6b161b31 | 942 | static void |
20bb5e18 JF |
943 | redraw_display(void) |
944 | { | |
945 | struct view *view; | |
946 | int i; | |
947 | ||
948 | foreach_view (view, i) { | |
949 | redraw_view(view); | |
950 | update_view_title(view); | |
951 | } | |
952 | } | |
953 | ||
85af6284 JF |
954 | static void |
955 | update_display_cursor(void) | |
956 | { | |
957 | struct view *view = display[current_view]; | |
958 | ||
959 | /* Move the cursor to the right-most column of the cursor line. | |
960 | * | |
961 | * XXX: This could turn out to be a bit expensive, but it ensures that | |
962 | * the cursor does not jump around. */ | |
963 | if (view->lines) { | |
964 | wmove(view->win, view->lineno - view->offset, view->width - 1); | |
965 | wrefresh(view->win); | |
966 | } | |
967 | } | |
20bb5e18 | 968 | |
2e8488b4 JF |
969 | /* |
970 | * Navigation | |
971 | */ | |
972 | ||
4a2909a7 | 973 | /* Scrolling backend */ |
b801d8b2 | 974 | static void |
b3a54cba | 975 | do_scroll_view(struct view *view, int lines, bool redraw) |
b801d8b2 | 976 | { |
fd85fef1 JF |
977 | /* The rendering expects the new offset. */ |
978 | view->offset += lines; | |
979 | ||
980 | assert(0 <= view->offset && view->offset < view->lines); | |
981 | assert(lines); | |
b801d8b2 | 982 | |
82e78006 | 983 | /* Redraw the whole screen if scrolling is pointless. */ |
4c6fabc2 | 984 | if (view->height < ABS(lines)) { |
b76c2afc JF |
985 | redraw_view(view); |
986 | ||
987 | } else { | |
22f66b0a | 988 | int line = lines > 0 ? view->height - lines : 0; |
82e78006 | 989 | int end = line + ABS(lines); |
fd85fef1 JF |
990 | |
991 | wscrl(view->win, lines); | |
992 | ||
22f66b0a | 993 | for (; line < end; line++) { |
fe7233c3 | 994 | if (!draw_view_line(view, line)) |
fd85fef1 JF |
995 | break; |
996 | } | |
997 | } | |
998 | ||
999 | /* Move current line into the view. */ | |
1000 | if (view->lineno < view->offset) { | |
1001 | view->lineno = view->offset; | |
fe7233c3 | 1002 | draw_view_line(view, 0); |
fd85fef1 JF |
1003 | |
1004 | } else if (view->lineno >= view->offset + view->height) { | |
6706b2ba JF |
1005 | if (view->lineno == view->offset + view->height) { |
1006 | /* Clear the hidden line so it doesn't show if the view | |
1007 | * is scrolled up. */ | |
1008 | wmove(view->win, view->height, 0); | |
1009 | wclrtoeol(view->win); | |
1010 | } | |
fd85fef1 | 1011 | view->lineno = view->offset + view->height - 1; |
fe7233c3 | 1012 | draw_view_line(view, view->lineno - view->offset); |
fd85fef1 JF |
1013 | } |
1014 | ||
4c6fabc2 | 1015 | assert(view->offset <= view->lineno && view->lineno < view->lines); |
fd85fef1 | 1016 | |
b3a54cba JF |
1017 | if (!redraw) |
1018 | return; | |
1019 | ||
fd85fef1 JF |
1020 | redrawwin(view->win); |
1021 | wrefresh(view->win); | |
9d3f5834 | 1022 | report(""); |
fd85fef1 | 1023 | } |
78c70acd | 1024 | |
4a2909a7 | 1025 | /* Scroll frontend */ |
fd85fef1 | 1026 | static void |
6b161b31 | 1027 | scroll_view(struct view *view, enum request request) |
fd85fef1 JF |
1028 | { |
1029 | int lines = 1; | |
b801d8b2 JF |
1030 | |
1031 | switch (request) { | |
4a2909a7 | 1032 | case REQ_SCROLL_PAGE_DOWN: |
fd85fef1 | 1033 | lines = view->height; |
4a2909a7 | 1034 | case REQ_SCROLL_LINE_DOWN: |
b801d8b2 | 1035 | if (view->offset + lines > view->lines) |
bde3653a | 1036 | lines = view->lines - view->offset; |
b801d8b2 | 1037 | |
fd85fef1 | 1038 | if (lines == 0 || view->offset + view->height >= view->lines) { |
eb98559e | 1039 | report("Cannot scroll beyond the last line"); |
b801d8b2 JF |
1040 | return; |
1041 | } | |
1042 | break; | |
1043 | ||
4a2909a7 | 1044 | case REQ_SCROLL_PAGE_UP: |
fd85fef1 | 1045 | lines = view->height; |
4a2909a7 | 1046 | case REQ_SCROLL_LINE_UP: |
b801d8b2 JF |
1047 | if (lines > view->offset) |
1048 | lines = view->offset; | |
1049 | ||
1050 | if (lines == 0) { | |
eb98559e | 1051 | report("Cannot scroll beyond the first line"); |
b801d8b2 JF |
1052 | return; |
1053 | } | |
1054 | ||
fd85fef1 | 1055 | lines = -lines; |
b801d8b2 | 1056 | break; |
03a93dbb | 1057 | |
6b161b31 JF |
1058 | default: |
1059 | die("request %d not handled in switch", request); | |
b801d8b2 JF |
1060 | } |
1061 | ||
b3a54cba | 1062 | do_scroll_view(view, lines, TRUE); |
fd85fef1 | 1063 | } |
b801d8b2 | 1064 | |
4a2909a7 | 1065 | /* Cursor moving */ |
fd85fef1 | 1066 | static void |
b3a54cba | 1067 | move_view(struct view *view, enum request request, bool redraw) |
fd85fef1 JF |
1068 | { |
1069 | int steps; | |
b801d8b2 | 1070 | |
fd85fef1 | 1071 | switch (request) { |
4a2909a7 | 1072 | case REQ_MOVE_FIRST_LINE: |
78c70acd JF |
1073 | steps = -view->lineno; |
1074 | break; | |
1075 | ||
4a2909a7 | 1076 | case REQ_MOVE_LAST_LINE: |
78c70acd JF |
1077 | steps = view->lines - view->lineno - 1; |
1078 | break; | |
1079 | ||
4a2909a7 | 1080 | case REQ_MOVE_PAGE_UP: |
78c70acd JF |
1081 | steps = view->height > view->lineno |
1082 | ? -view->lineno : -view->height; | |
1083 | break; | |
1084 | ||
4a2909a7 | 1085 | case REQ_MOVE_PAGE_DOWN: |
78c70acd JF |
1086 | steps = view->lineno + view->height >= view->lines |
1087 | ? view->lines - view->lineno - 1 : view->height; | |
1088 | break; | |
1089 | ||
4a2909a7 | 1090 | case REQ_MOVE_UP: |
fd85fef1 JF |
1091 | steps = -1; |
1092 | break; | |
b801d8b2 | 1093 | |
4a2909a7 | 1094 | case REQ_MOVE_DOWN: |
fd85fef1 JF |
1095 | steps = 1; |
1096 | break; | |
6b161b31 JF |
1097 | |
1098 | default: | |
1099 | die("request %d not handled in switch", request); | |
78c70acd | 1100 | } |
b801d8b2 | 1101 | |
4c6fabc2 | 1102 | if (steps <= 0 && view->lineno == 0) { |
eb98559e | 1103 | report("Cannot move beyond the first line"); |
78c70acd | 1104 | return; |
b801d8b2 | 1105 | |
6908bdbd | 1106 | } else if (steps >= 0 && view->lineno + 1 >= view->lines) { |
eb98559e | 1107 | report("Cannot move beyond the last line"); |
78c70acd | 1108 | return; |
fd85fef1 JF |
1109 | } |
1110 | ||
4c6fabc2 | 1111 | /* Move the current line */ |
fd85fef1 | 1112 | view->lineno += steps; |
4c6fabc2 JF |
1113 | assert(0 <= view->lineno && view->lineno < view->lines); |
1114 | ||
1115 | /* Repaint the old "current" line if we be scrolling */ | |
2e8488b4 JF |
1116 | if (ABS(steps) < view->height) { |
1117 | int prev_lineno = view->lineno - steps - view->offset; | |
1118 | ||
1119 | wmove(view->win, prev_lineno, 0); | |
1120 | wclrtoeol(view->win); | |
fe7233c3 | 1121 | draw_view_line(view, prev_lineno); |
2e8488b4 | 1122 | } |
fd85fef1 | 1123 | |
4c6fabc2 | 1124 | /* Check whether the view needs to be scrolled */ |
fd85fef1 JF |
1125 | if (view->lineno < view->offset || |
1126 | view->lineno >= view->offset + view->height) { | |
1127 | if (steps < 0 && -steps > view->offset) { | |
1128 | steps = -view->offset; | |
b76c2afc JF |
1129 | |
1130 | } else if (steps > 0) { | |
1131 | if (view->lineno == view->lines - 1 && | |
1132 | view->lines > view->height) { | |
1133 | steps = view->lines - view->offset - 1; | |
1134 | if (steps >= view->height) | |
1135 | steps -= view->height - 1; | |
1136 | } | |
b801d8b2 | 1137 | } |
78c70acd | 1138 | |
b3a54cba | 1139 | do_scroll_view(view, steps, redraw); |
fd85fef1 | 1140 | return; |
b801d8b2 JF |
1141 | } |
1142 | ||
4c6fabc2 | 1143 | /* Draw the current line */ |
fe7233c3 | 1144 | draw_view_line(view, view->lineno - view->offset); |
fd85fef1 | 1145 | |
b3a54cba JF |
1146 | if (!redraw) |
1147 | return; | |
1148 | ||
b801d8b2 JF |
1149 | redrawwin(view->win); |
1150 | wrefresh(view->win); | |
9d3f5834 | 1151 | report(""); |
b801d8b2 JF |
1152 | } |
1153 | ||
b801d8b2 | 1154 | |
2e8488b4 JF |
1155 | /* |
1156 | * Incremental updating | |
1157 | */ | |
b801d8b2 | 1158 | |
199d1288 JF |
1159 | static void |
1160 | end_update(struct view *view) | |
1161 | { | |
1162 | if (!view->pipe) | |
1163 | return; | |
1164 | set_nonblocking_input(FALSE); | |
1165 | if (view->pipe == stdin) | |
1166 | fclose(view->pipe); | |
1167 | else | |
1168 | pclose(view->pipe); | |
1169 | view->pipe = NULL; | |
1170 | } | |
1171 | ||
03a93dbb | 1172 | static bool |
b801d8b2 JF |
1173 | begin_update(struct view *view) |
1174 | { | |
4685845e | 1175 | const char *id = view->id; |
fd85fef1 | 1176 | |
199d1288 JF |
1177 | if (view->pipe) |
1178 | end_update(view); | |
1179 | ||
03a93dbb JF |
1180 | if (opt_cmd[0]) { |
1181 | string_copy(view->cmd, opt_cmd); | |
1182 | opt_cmd[0] = 0; | |
8855ada4 JF |
1183 | /* When running random commands, the view ref could have become |
1184 | * invalid so clear it. */ | |
1185 | view->ref[0] = 0; | |
03a93dbb | 1186 | } else { |
4685845e | 1187 | const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt; |
1ba2ae4b | 1188 | |
cc2d1364 | 1189 | if (!string_format(view->cmd, format, id, id, id, id, id)) |
03a93dbb JF |
1190 | return FALSE; |
1191 | } | |
b801d8b2 | 1192 | |
6908bdbd JF |
1193 | /* Special case for the pager view. */ |
1194 | if (opt_pipe) { | |
1195 | view->pipe = opt_pipe; | |
1196 | opt_pipe = NULL; | |
1197 | } else { | |
1198 | view->pipe = popen(view->cmd, "r"); | |
1199 | } | |
1200 | ||
2e8488b4 JF |
1201 | if (!view->pipe) |
1202 | return FALSE; | |
b801d8b2 | 1203 | |
6b161b31 | 1204 | set_nonblocking_input(TRUE); |
b801d8b2 JF |
1205 | |
1206 | view->offset = 0; | |
1207 | view->lines = 0; | |
1208 | view->lineno = 0; | |
49f2b43f | 1209 | string_copy(view->vid, id); |
b801d8b2 | 1210 | |
2e8488b4 JF |
1211 | if (view->line) { |
1212 | int i; | |
1213 | ||
1214 | for (i = 0; i < view->lines; i++) | |
fe7233c3 JF |
1215 | if (view->line[i].data) |
1216 | free(view->line[i].data); | |
2e8488b4 JF |
1217 | |
1218 | free(view->line); | |
1219 | view->line = NULL; | |
1220 | } | |
1221 | ||
1222 | view->start_time = time(NULL); | |
1223 | ||
b801d8b2 JF |
1224 | return TRUE; |
1225 | } | |
1226 | ||
e2c01617 JF |
1227 | static struct line * |
1228 | realloc_lines(struct view *view, size_t line_size) | |
1229 | { | |
1230 | struct line *tmp = realloc(view->line, sizeof(*view->line) * line_size); | |
1231 | ||
1232 | if (!tmp) | |
1233 | return NULL; | |
1234 | ||
1235 | view->line = tmp; | |
1236 | view->line_size = line_size; | |
1237 | return view->line; | |
1238 | } | |
1239 | ||
03a93dbb | 1240 | static bool |
b801d8b2 JF |
1241 | update_view(struct view *view) |
1242 | { | |
1243 | char buffer[BUFSIZ]; | |
1244 | char *line; | |
82e78006 JF |
1245 | /* The number of lines to read. If too low it will cause too much |
1246 | * redrawing (and possible flickering), if too high responsiveness | |
1247 | * will suffer. */ | |
8855ada4 | 1248 | unsigned long lines = view->height; |
82e78006 | 1249 | int redraw_from = -1; |
b801d8b2 JF |
1250 | |
1251 | if (!view->pipe) | |
1252 | return TRUE; | |
1253 | ||
82e78006 JF |
1254 | /* Only redraw if lines are visible. */ |
1255 | if (view->offset + view->height >= view->lines) | |
1256 | redraw_from = view->lines - view->offset; | |
b801d8b2 | 1257 | |
e2c01617 | 1258 | if (!realloc_lines(view, view->lines + lines)) |
b801d8b2 JF |
1259 | goto alloc_error; |
1260 | ||
b801d8b2 | 1261 | while ((line = fgets(buffer, sizeof(buffer), view->pipe))) { |
c34d9c9f | 1262 | int linelen = strlen(line); |
b801d8b2 | 1263 | |
b801d8b2 JF |
1264 | if (linelen) |
1265 | line[linelen - 1] = 0; | |
1266 | ||
701e4f5d | 1267 | if (!view->ops->read(view, line)) |
b801d8b2 | 1268 | goto alloc_error; |
fd85fef1 JF |
1269 | |
1270 | if (lines-- == 1) | |
1271 | break; | |
b801d8b2 JF |
1272 | } |
1273 | ||
8855ada4 JF |
1274 | { |
1275 | int digits; | |
1276 | ||
1277 | lines = view->lines; | |
1278 | for (digits = 0; lines; digits++) | |
1279 | lines /= 10; | |
1280 | ||
1281 | /* Keep the displayed view in sync with line number scaling. */ | |
1282 | if (digits != view->digits) { | |
1283 | view->digits = digits; | |
1284 | redraw_from = 0; | |
1285 | } | |
1286 | } | |
1287 | ||
82e78006 JF |
1288 | if (redraw_from >= 0) { |
1289 | /* If this is an incremental update, redraw the previous line | |
a28bcc22 JF |
1290 | * since for commits some members could have changed when |
1291 | * loading the main view. */ | |
82e78006 JF |
1292 | if (redraw_from > 0) |
1293 | redraw_from--; | |
1294 | ||
1295 | /* Incrementally draw avoids flickering. */ | |
1296 | redraw_view_from(view, redraw_from); | |
4c6fabc2 | 1297 | } |
b801d8b2 | 1298 | |
eb98559e JF |
1299 | /* Update the title _after_ the redraw so that if the redraw picks up a |
1300 | * commit reference in view->ref it'll be available here. */ | |
1301 | update_view_title(view); | |
1302 | ||
b801d8b2 | 1303 | if (ferror(view->pipe)) { |
03a93dbb | 1304 | report("Failed to read: %s", strerror(errno)); |
b801d8b2 JF |
1305 | goto end; |
1306 | ||
1307 | } else if (feof(view->pipe)) { | |
f97f4012 | 1308 | report(""); |
b801d8b2 JF |
1309 | goto end; |
1310 | } | |
1311 | ||
1312 | return TRUE; | |
1313 | ||
1314 | alloc_error: | |
2e8488b4 | 1315 | report("Allocation failure"); |
b801d8b2 JF |
1316 | |
1317 | end: | |
1318 | end_update(view); | |
1319 | return FALSE; | |
1320 | } | |
1321 | ||
49f2b43f JF |
1322 | enum open_flags { |
1323 | OPEN_DEFAULT = 0, /* Use default view switching. */ | |
1324 | OPEN_SPLIT = 1, /* Split current view. */ | |
1325 | OPEN_BACKGROUNDED = 2, /* Backgrounded. */ | |
1326 | OPEN_RELOAD = 4, /* Reload view even if it is the current. */ | |
1327 | }; | |
1328 | ||
6b161b31 | 1329 | static void |
49f2b43f | 1330 | open_view(struct view *prev, enum request request, enum open_flags flags) |
b801d8b2 | 1331 | { |
49f2b43f JF |
1332 | bool backgrounded = !!(flags & OPEN_BACKGROUNDED); |
1333 | bool split = !!(flags & OPEN_SPLIT); | |
1334 | bool reload = !!(flags & OPEN_RELOAD); | |
a28bcc22 | 1335 | struct view *view = VIEW(request); |
9f41488f | 1336 | int nviews = displayed_views(); |
6e950a52 | 1337 | struct view *base_view = display[0]; |
b801d8b2 | 1338 | |
49f2b43f | 1339 | if (view == prev && nviews == 1 && !reload) { |
6b161b31 JF |
1340 | report("Already in %s view", view->name); |
1341 | return; | |
1342 | } | |
b801d8b2 | 1343 | |
8855ada4 | 1344 | if ((reload || strcmp(view->vid, view->id)) && |
03a93dbb | 1345 | !begin_update(view)) { |
6b161b31 JF |
1346 | report("Failed to load %s view", view->name); |
1347 | return; | |
1348 | } | |
a28bcc22 | 1349 | |
6b161b31 | 1350 | if (split) { |
8d741c06 | 1351 | display[1] = view; |
6b161b31 | 1352 | if (!backgrounded) |
8d741c06 | 1353 | current_view = 1; |
6b161b31 JF |
1354 | } else { |
1355 | /* Maximize the current view. */ | |
1356 | memset(display, 0, sizeof(display)); | |
1357 | current_view = 0; | |
1358 | display[current_view] = view; | |
a28bcc22 | 1359 | } |
b801d8b2 | 1360 | |
6e950a52 JF |
1361 | /* Resize the view when switching between split- and full-screen, |
1362 | * or when switching between two different full-screen views. */ | |
1363 | if (nviews != displayed_views() || | |
1364 | (nviews == 1 && base_view != display[0])) | |
a006db63 | 1365 | resize_display(); |
b801d8b2 | 1366 | |
a8891802 | 1367 | if (split && prev->lineno - prev->offset >= prev->height) { |
03a93dbb | 1368 | /* Take the title line into account. */ |
eb98559e | 1369 | int lines = prev->lineno - prev->offset - prev->height + 1; |
03a93dbb JF |
1370 | |
1371 | /* Scroll the view that was split if the current line is | |
1372 | * outside the new limited view. */ | |
b3a54cba | 1373 | do_scroll_view(prev, lines, TRUE); |
03a93dbb JF |
1374 | } |
1375 | ||
6b161b31 | 1376 | if (prev && view != prev) { |
9b995f0c | 1377 | if (split && !backgrounded) { |
f0b3ab80 JF |
1378 | /* "Blur" the previous view. */ |
1379 | update_view_title(prev); | |
9f396969 | 1380 | } |
f0b3ab80 | 1381 | |
f6da0b66 | 1382 | view->parent = prev; |
b801d8b2 JF |
1383 | } |
1384 | ||
24b5b3e0 JF |
1385 | if (view == VIEW(REQ_VIEW_HELP)) |
1386 | load_help_page(); | |
1387 | ||
9f396969 | 1388 | if (view->pipe && view->lines == 0) { |
03a93dbb JF |
1389 | /* Clear the old view and let the incremental updating refill |
1390 | * the screen. */ | |
1391 | wclear(view->win); | |
f97f4012 | 1392 | report(""); |
03a93dbb JF |
1393 | } else { |
1394 | redraw_view(view); | |
24b5b3e0 | 1395 | report(""); |
03a93dbb | 1396 | } |
6706b2ba JF |
1397 | |
1398 | /* If the view is backgrounded the above calls to report() | |
1399 | * won't redraw the view title. */ | |
1400 | if (backgrounded) | |
1401 | update_view_title(view); | |
b801d8b2 JF |
1402 | } |
1403 | ||
1404 | ||
6b161b31 JF |
1405 | /* |
1406 | * User request switch noodle | |
1407 | */ | |
1408 | ||
b801d8b2 | 1409 | static int |
6b161b31 | 1410 | view_driver(struct view *view, enum request request) |
b801d8b2 | 1411 | { |
b801d8b2 JF |
1412 | int i; |
1413 | ||
1414 | switch (request) { | |
4a2909a7 JF |
1415 | case REQ_MOVE_UP: |
1416 | case REQ_MOVE_DOWN: | |
1417 | case REQ_MOVE_PAGE_UP: | |
1418 | case REQ_MOVE_PAGE_DOWN: | |
1419 | case REQ_MOVE_FIRST_LINE: | |
1420 | case REQ_MOVE_LAST_LINE: | |
b3a54cba | 1421 | move_view(view, request, TRUE); |
fd85fef1 JF |
1422 | break; |
1423 | ||
4a2909a7 JF |
1424 | case REQ_SCROLL_LINE_DOWN: |
1425 | case REQ_SCROLL_LINE_UP: | |
1426 | case REQ_SCROLL_PAGE_DOWN: | |
1427 | case REQ_SCROLL_PAGE_UP: | |
a28bcc22 | 1428 | scroll_view(view, request); |
b801d8b2 JF |
1429 | break; |
1430 | ||
4a2909a7 | 1431 | case REQ_VIEW_MAIN: |
4a2909a7 | 1432 | case REQ_VIEW_DIFF: |
2e8488b4 JF |
1433 | case REQ_VIEW_LOG: |
1434 | case REQ_VIEW_HELP: | |
6908bdbd | 1435 | case REQ_VIEW_PAGER: |
49f2b43f | 1436 | open_view(view, request, OPEN_DEFAULT); |
b801d8b2 JF |
1437 | break; |
1438 | ||
b3a54cba JF |
1439 | case REQ_NEXT: |
1440 | case REQ_PREVIOUS: | |
1441 | request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP; | |
1442 | ||
1443 | if (view == VIEW(REQ_VIEW_DIFF) && | |
1444 | view->parent == VIEW(REQ_VIEW_MAIN)) { | |
f0b3ab80 | 1445 | bool redraw = display[1] == view; |
b3a54cba JF |
1446 | |
1447 | view = view->parent; | |
1448 | move_view(view, request, redraw); | |
f0b3ab80 JF |
1449 | if (redraw) |
1450 | update_view_title(view); | |
b3a54cba JF |
1451 | } else { |
1452 | move_view(view, request, TRUE); | |
1453 | break; | |
1454 | } | |
6706b2ba JF |
1455 | /* Fall-through */ |
1456 | ||
6b161b31 | 1457 | case REQ_ENTER: |
6908bdbd JF |
1458 | if (!view->lines) { |
1459 | report("Nothing to enter"); | |
1460 | break; | |
1461 | } | |
fe7233c3 | 1462 | return view->ops->enter(view, &view->line[view->lineno]); |
6b161b31 | 1463 | |
03a93dbb JF |
1464 | case REQ_VIEW_NEXT: |
1465 | { | |
9f41488f | 1466 | int nviews = displayed_views(); |
03a93dbb JF |
1467 | int next_view = (current_view + 1) % nviews; |
1468 | ||
1469 | if (next_view == current_view) { | |
1470 | report("Only one view is displayed"); | |
1471 | break; | |
1472 | } | |
1473 | ||
1474 | current_view = next_view; | |
1475 | /* Blur out the title of the previous view. */ | |
1476 | update_view_title(view); | |
6734f6b9 | 1477 | report(""); |
03a93dbb JF |
1478 | break; |
1479 | } | |
24b5b3e0 | 1480 | case REQ_TOGGLE_LINENO: |
b76c2afc | 1481 | opt_line_number = !opt_line_number; |
20bb5e18 | 1482 | redraw_display(); |
b801d8b2 JF |
1483 | break; |
1484 | ||
03a93dbb | 1485 | case REQ_PROMPT: |
8855ada4 | 1486 | /* Always reload^Wrerun commands from the prompt. */ |
49f2b43f | 1487 | open_view(view, opt_request, OPEN_RELOAD); |
03a93dbb JF |
1488 | break; |
1489 | ||
4a2909a7 | 1490 | case REQ_STOP_LOADING: |
59a45d3a JF |
1491 | for (i = 0; i < ARRAY_SIZE(views); i++) { |
1492 | view = &views[i]; | |
2e8488b4 | 1493 | if (view->pipe) |
6a7bb912 | 1494 | report("Stopped loading the %s view", view->name), |
03a93dbb JF |
1495 | end_update(view); |
1496 | } | |
b801d8b2 JF |
1497 | break; |
1498 | ||
4a2909a7 | 1499 | case REQ_SHOW_VERSION: |
6cb291b7 | 1500 | report("%s (built %s)", VERSION, __DATE__); |
b801d8b2 JF |
1501 | return TRUE; |
1502 | ||
fac7db6c JF |
1503 | case REQ_SCREEN_RESIZE: |
1504 | resize_display(); | |
1505 | /* Fall-through */ | |
4a2909a7 | 1506 | case REQ_SCREEN_REDRAW: |
20bb5e18 | 1507 | redraw_display(); |
4a2909a7 JF |
1508 | break; |
1509 | ||
1510 | case REQ_SCREEN_UPDATE: | |
b801d8b2 JF |
1511 | doupdate(); |
1512 | return TRUE; | |
1513 | ||
4f9b667a | 1514 | case REQ_VIEW_CLOSE: |
2fcf5401 JF |
1515 | /* XXX: Mark closed views by letting view->parent point to the |
1516 | * view itself. Parents to closed view should never be | |
1517 | * followed. */ | |
1518 | if (view->parent && | |
1519 | view->parent->parent != view->parent) { | |
4f9b667a JF |
1520 | memset(display, 0, sizeof(display)); |
1521 | current_view = 0; | |
f6da0b66 | 1522 | display[current_view] = view->parent; |
2fcf5401 | 1523 | view->parent = view; |
4f9b667a JF |
1524 | resize_display(); |
1525 | redraw_display(); | |
1526 | break; | |
1527 | } | |
1528 | /* Fall-through */ | |
b801d8b2 JF |
1529 | case REQ_QUIT: |
1530 | return FALSE; | |
1531 | ||
1532 | default: | |
2e8488b4 | 1533 | /* An unknown key will show most commonly used commands. */ |
468876c9 | 1534 | report("Unknown key, press 'h' for help"); |
b801d8b2 JF |
1535 | return TRUE; |
1536 | } | |
1537 | ||
1538 | return TRUE; | |
1539 | } | |
1540 | ||
1541 | ||
1542 | /* | |
ff26aa29 | 1543 | * Pager backend |
b801d8b2 JF |
1544 | */ |
1545 | ||
6b161b31 | 1546 | static bool |
fe7233c3 | 1547 | pager_draw(struct view *view, struct line *line, unsigned int lineno) |
b801d8b2 | 1548 | { |
fe7233c3 JF |
1549 | char *text = line->data; |
1550 | enum line_type type = line->type; | |
1551 | int textlen = strlen(text); | |
78c70acd | 1552 | int attr; |
b801d8b2 | 1553 | |
6706b2ba JF |
1554 | wmove(view->win, lineno, 0); |
1555 | ||
fd85fef1 | 1556 | if (view->offset + lineno == view->lineno) { |
8855ada4 | 1557 | if (type == LINE_COMMIT) { |
fe7233c3 | 1558 | string_copy(view->ref, text + 7); |
03a93dbb JF |
1559 | string_copy(ref_commit, view->ref); |
1560 | } | |
8855ada4 | 1561 | |
78c70acd | 1562 | type = LINE_CURSOR; |
6706b2ba | 1563 | wchgat(view->win, -1, 0, type, NULL); |
fd85fef1 JF |
1564 | } |
1565 | ||
78c70acd | 1566 | attr = get_line_attr(type); |
b801d8b2 | 1567 | wattrset(view->win, attr); |
b76c2afc | 1568 | |
6706b2ba JF |
1569 | if (opt_line_number || opt_tab_size < TABSIZE) { |
1570 | static char spaces[] = " "; | |
1571 | int col_offset = 0, col = 0; | |
1572 | ||
1573 | if (opt_line_number) { | |
1574 | unsigned long real_lineno = view->offset + lineno + 1; | |
82e78006 | 1575 | |
6706b2ba JF |
1576 | if (real_lineno == 1 || |
1577 | (real_lineno % opt_num_interval) == 0) { | |
1578 | wprintw(view->win, "%.*d", view->digits, real_lineno); | |
8855ada4 | 1579 | |
6706b2ba JF |
1580 | } else { |
1581 | waddnstr(view->win, spaces, | |
1582 | MIN(view->digits, STRING_SIZE(spaces))); | |
1583 | } | |
1584 | waddstr(view->win, ": "); | |
1585 | col_offset = view->digits + 2; | |
1586 | } | |
8855ada4 | 1587 | |
fe7233c3 | 1588 | while (text && col_offset + col < view->width) { |
6706b2ba | 1589 | int cols_max = view->width - col_offset - col; |
fe7233c3 | 1590 | char *pos = text; |
6706b2ba | 1591 | int cols; |
4c6fabc2 | 1592 | |
fe7233c3 JF |
1593 | if (*text == '\t') { |
1594 | text++; | |
6706b2ba | 1595 | assert(sizeof(spaces) > TABSIZE); |
fe7233c3 | 1596 | pos = spaces; |
6706b2ba | 1597 | cols = opt_tab_size - (col % opt_tab_size); |
82e78006 | 1598 | |
b76c2afc | 1599 | } else { |
fe7233c3 JF |
1600 | text = strchr(text, '\t'); |
1601 | cols = line ? text - pos : strlen(pos); | |
b76c2afc | 1602 | } |
6706b2ba | 1603 | |
fe7233c3 | 1604 | waddnstr(view->win, pos, MIN(cols, cols_max)); |
6706b2ba | 1605 | col += cols; |
b76c2afc | 1606 | } |
b76c2afc JF |
1607 | |
1608 | } else { | |
6706b2ba | 1609 | int col = 0, pos = 0; |
b801d8b2 | 1610 | |
fe7233c3 JF |
1611 | for (; pos < textlen && col < view->width; pos++, col++) |
1612 | if (text[pos] == '\t') | |
6706b2ba JF |
1613 | col += TABSIZE - (col % TABSIZE) - 1; |
1614 | ||
fe7233c3 | 1615 | waddnstr(view->win, text, pos); |
6706b2ba | 1616 | } |
2e8488b4 | 1617 | |
b801d8b2 JF |
1618 | return TRUE; |
1619 | } | |
1620 | ||
7b99a34c JF |
1621 | static void |
1622 | add_pager_refs(struct view *view, struct line *line) | |
1623 | { | |
1624 | char buf[1024]; | |
1625 | char *data = line->data; | |
1626 | struct ref **refs; | |
1627 | int bufpos = 0, refpos = 0; | |
1628 | const char *sep = "Refs: "; | |
1629 | ||
1630 | assert(line->type == LINE_COMMIT); | |
1631 | ||
1632 | refs = get_refs(data + STRING_SIZE("commit ")); | |
1633 | if (!refs) | |
1634 | return; | |
1635 | ||
1636 | do { | |
cc2d1364 JF |
1637 | struct ref *ref = refs[refpos]; |
1638 | char *fmt = ref->tag ? "%s[%s]" : "%s%s"; | |
7b99a34c | 1639 | |
cc2d1364 JF |
1640 | if (!string_format_from(buf, &bufpos, fmt, sep, ref->name)) |
1641 | return; | |
7b99a34c JF |
1642 | sep = ", "; |
1643 | } while (refs[refpos++]->next); | |
1644 | ||
cc2d1364 | 1645 | if (!realloc_lines(view, view->line_size + 1)) |
7b99a34c JF |
1646 | return; |
1647 | ||
1648 | line = &view->line[view->lines]; | |
1649 | line->data = strdup(buf); | |
1650 | if (!line->data) | |
1651 | return; | |
1652 | ||
1653 | line->type = LINE_PP_REFS; | |
1654 | view->lines++; | |
1655 | } | |
1656 | ||
6b161b31 | 1657 | static bool |
701e4f5d | 1658 | pager_read(struct view *view, char *data) |
22f66b0a | 1659 | { |
7b99a34c | 1660 | struct line *line = &view->line[view->lines]; |
22f66b0a | 1661 | |
7b99a34c JF |
1662 | line->data = strdup(data); |
1663 | if (!line->data) | |
1664 | return FALSE; | |
fe7233c3 | 1665 | |
7b99a34c | 1666 | line->type = get_line_type(line->data); |
22f66b0a | 1667 | view->lines++; |
7b99a34c JF |
1668 | |
1669 | if (line->type == LINE_COMMIT && | |
1670 | (view == VIEW(REQ_VIEW_DIFF) || | |
1671 | view == VIEW(REQ_VIEW_LOG))) | |
1672 | add_pager_refs(view, line); | |
1673 | ||
22f66b0a JF |
1674 | return TRUE; |
1675 | } | |
1676 | ||
6b161b31 | 1677 | static bool |
fe7233c3 | 1678 | pager_enter(struct view *view, struct line *line) |
6b161b31 | 1679 | { |
91e8e277 | 1680 | int split = 0; |
6b161b31 | 1681 | |
9fbbd28f JF |
1682 | if (line->type == LINE_COMMIT && |
1683 | (view == VIEW(REQ_VIEW_LOG) || | |
1684 | view == VIEW(REQ_VIEW_PAGER))) { | |
91e8e277 JF |
1685 | open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT); |
1686 | split = 1; | |
67e48ac5 JF |
1687 | } |
1688 | ||
91e8e277 JF |
1689 | /* Always scroll the view even if it was split. That way |
1690 | * you can use Enter to scroll through the log view and | |
1691 | * split open each commit diff. */ | |
1692 | scroll_view(view, REQ_SCROLL_LINE_DOWN); | |
1693 | ||
1694 | /* FIXME: A minor workaround. Scrolling the view will call report("") | |
9d82d824 JF |
1695 | * but if we are scrolling a non-current view this won't properly |
1696 | * update the view title. */ | |
91e8e277 JF |
1697 | if (split) |
1698 | update_view_title(view); | |
6b161b31 JF |
1699 | |
1700 | return TRUE; | |
1701 | } | |
1702 | ||
6b161b31 | 1703 | static struct view_ops pager_ops = { |
6734f6b9 | 1704 | "line", |
6b161b31 JF |
1705 | pager_draw, |
1706 | pager_read, | |
1707 | pager_enter, | |
1708 | }; | |
1709 | ||
80ce96ea | 1710 | |
ff26aa29 JF |
1711 | /* |
1712 | * Main view backend | |
1713 | */ | |
1714 | ||
1715 | struct commit { | |
1716 | char id[41]; /* SHA1 ID. */ | |
1717 | char title[75]; /* The first line of the commit message. */ | |
1718 | char author[75]; /* The author of the commit. */ | |
1719 | struct tm time; /* Date from the author ident. */ | |
1720 | struct ref **refs; /* Repository references; tags & branch heads. */ | |
1721 | }; | |
c34d9c9f | 1722 | |
6b161b31 | 1723 | static bool |
fe7233c3 | 1724 | main_draw(struct view *view, struct line *line, unsigned int lineno) |
22f66b0a | 1725 | { |
2e8488b4 | 1726 | char buf[DATE_COLS + 1]; |
fe7233c3 | 1727 | struct commit *commit = line->data; |
78c70acd | 1728 | enum line_type type; |
6706b2ba | 1729 | int col = 0; |
b76c2afc | 1730 | size_t timelen; |
10e290ee | 1731 | size_t authorlen; |
9989bf60 | 1732 | int trimmed = 1; |
22f66b0a | 1733 | |
4c6fabc2 JF |
1734 | if (!*commit->author) |
1735 | return FALSE; | |
22f66b0a | 1736 | |
6706b2ba JF |
1737 | wmove(view->win, lineno, col); |
1738 | ||
22f66b0a | 1739 | if (view->offset + lineno == view->lineno) { |
03a93dbb | 1740 | string_copy(view->ref, commit->id); |
49f2b43f | 1741 | string_copy(ref_commit, view->ref); |
78c70acd | 1742 | type = LINE_CURSOR; |
6706b2ba JF |
1743 | wattrset(view->win, get_line_attr(type)); |
1744 | wchgat(view->win, -1, 0, type, NULL); | |
1745 | ||
78c70acd | 1746 | } else { |
b76c2afc | 1747 | type = LINE_MAIN_COMMIT; |
6706b2ba | 1748 | wattrset(view->win, get_line_attr(LINE_MAIN_DATE)); |
b76c2afc JF |
1749 | } |
1750 | ||
4c6fabc2 | 1751 | timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time); |
b76c2afc | 1752 | waddnstr(view->win, buf, timelen); |
4c6fabc2 | 1753 | waddstr(view->win, " "); |
b76c2afc | 1754 | |
6706b2ba JF |
1755 | col += DATE_COLS; |
1756 | wmove(view->win, lineno, col); | |
1757 | if (type != LINE_CURSOR) | |
1758 | wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR)); | |
b76c2afc | 1759 | |
9989bf60 JF |
1760 | if (opt_utf8) { |
1761 | authorlen = utf8_length(commit->author, AUTHOR_COLS - 2, &col, &trimmed); | |
1762 | } else { | |
1763 | authorlen = strlen(commit->author); | |
1764 | if (authorlen > AUTHOR_COLS - 2) { | |
1765 | authorlen = AUTHOR_COLS - 2; | |
1766 | trimmed = 1; | |
1767 | } | |
1768 | } | |
10e290ee JF |
1769 | |
1770 | if (trimmed) { | |
1771 | waddnstr(view->win, commit->author, authorlen); | |
6706b2ba JF |
1772 | if (type != LINE_CURSOR) |
1773 | wattrset(view->win, get_line_attr(LINE_MAIN_DELIM)); | |
b76c2afc JF |
1774 | waddch(view->win, '~'); |
1775 | } else { | |
1776 | waddstr(view->win, commit->author); | |
22f66b0a JF |
1777 | } |
1778 | ||
10e290ee | 1779 | col += AUTHOR_COLS; |
6706b2ba JF |
1780 | if (type != LINE_CURSOR) |
1781 | wattrset(view->win, A_NORMAL); | |
1782 | ||
1783 | mvwaddch(view->win, lineno, col, ACS_LTEE); | |
1784 | wmove(view->win, lineno, col + 2); | |
1785 | col += 2; | |
c34d9c9f JF |
1786 | |
1787 | if (commit->refs) { | |
1788 | size_t i = 0; | |
1789 | ||
1790 | do { | |
6706b2ba JF |
1791 | if (type == LINE_CURSOR) |
1792 | ; | |
1793 | else if (commit->refs[i]->tag) | |
c34d9c9f JF |
1794 | wattrset(view->win, get_line_attr(LINE_MAIN_TAG)); |
1795 | else | |
1796 | wattrset(view->win, get_line_attr(LINE_MAIN_REF)); | |
1797 | waddstr(view->win, "["); | |
1798 | waddstr(view->win, commit->refs[i]->name); | |
1799 | waddstr(view->win, "]"); | |
6706b2ba JF |
1800 | if (type != LINE_CURSOR) |
1801 | wattrset(view->win, A_NORMAL); | |
c34d9c9f | 1802 | waddstr(view->win, " "); |
6706b2ba | 1803 | col += strlen(commit->refs[i]->name) + STRING_SIZE("[] "); |
c34d9c9f JF |
1804 | } while (commit->refs[i++]->next); |
1805 | } | |
1806 | ||
6706b2ba JF |
1807 | if (type != LINE_CURSOR) |
1808 | wattrset(view->win, get_line_attr(type)); | |
1809 | ||
1810 | { | |
1811 | int titlelen = strlen(commit->title); | |
1812 | ||
1813 | if (col + titlelen > view->width) | |
1814 | titlelen = view->width - col; | |
1815 | ||
1816 | waddnstr(view->win, commit->title, titlelen); | |
1817 | } | |
22f66b0a JF |
1818 | |
1819 | return TRUE; | |
1820 | } | |
1821 | ||
4c6fabc2 | 1822 | /* Reads git log --pretty=raw output and parses it into the commit struct. */ |
6b161b31 | 1823 | static bool |
701e4f5d | 1824 | main_read(struct view *view, char *line) |
22f66b0a | 1825 | { |
78c70acd | 1826 | enum line_type type = get_line_type(line); |
701e4f5d JF |
1827 | struct commit *commit = view->lines |
1828 | ? view->line[view->lines - 1].data : NULL; | |
22f66b0a | 1829 | |
78c70acd JF |
1830 | switch (type) { |
1831 | case LINE_COMMIT: | |
22f66b0a JF |
1832 | commit = calloc(1, sizeof(struct commit)); |
1833 | if (!commit) | |
1834 | return FALSE; | |
1835 | ||
4c6fabc2 | 1836 | line += STRING_SIZE("commit "); |
b76c2afc | 1837 | |
fe7233c3 | 1838 | view->line[view->lines++].data = commit; |
82e78006 | 1839 | string_copy(commit->id, line); |
c34d9c9f | 1840 | commit->refs = get_refs(commit->id); |
78c70acd | 1841 | break; |
22f66b0a | 1842 | |
8855ada4 | 1843 | case LINE_AUTHOR: |
b76c2afc | 1844 | { |
4c6fabc2 | 1845 | char *ident = line + STRING_SIZE("author "); |
b76c2afc JF |
1846 | char *end = strchr(ident, '<'); |
1847 | ||
701e4f5d | 1848 | if (!commit) |
fe7233c3 JF |
1849 | break; |
1850 | ||
b76c2afc JF |
1851 | if (end) { |
1852 | for (; end > ident && isspace(end[-1]); end--) ; | |
1853 | *end = 0; | |
1854 | } | |
1855 | ||
82e78006 | 1856 | string_copy(commit->author, ident); |
b76c2afc | 1857 | |
4c6fabc2 | 1858 | /* Parse epoch and timezone */ |
b76c2afc JF |
1859 | if (end) { |
1860 | char *secs = strchr(end + 1, '>'); | |
1861 | char *zone; | |
1862 | time_t time; | |
1863 | ||
1864 | if (!secs || secs[1] != ' ') | |
1865 | break; | |
1866 | ||
1867 | secs += 2; | |
1868 | time = (time_t) atol(secs); | |
1869 | zone = strchr(secs, ' '); | |
4c6fabc2 | 1870 | if (zone && strlen(zone) == STRING_SIZE(" +0700")) { |
b76c2afc JF |
1871 | long tz; |
1872 | ||
1873 | zone++; | |
1874 | tz = ('0' - zone[1]) * 60 * 60 * 10; | |
1875 | tz += ('0' - zone[2]) * 60 * 60; | |
1876 | tz += ('0' - zone[3]) * 60; | |
1877 | tz += ('0' - zone[4]) * 60; | |
1878 | ||
1879 | if (zone[0] == '-') | |
1880 | tz = -tz; | |
1881 | ||
1882 | time -= tz; | |
1883 | } | |
1884 | gmtime_r(&time, &commit->time); | |
1885 | } | |
1886 | break; | |
1887 | } | |
78c70acd | 1888 | default: |
701e4f5d | 1889 | if (!commit) |
2e8488b4 JF |
1890 | break; |
1891 | ||
1892 | /* Fill in the commit title if it has not already been set. */ | |
2e8488b4 JF |
1893 | if (commit->title[0]) |
1894 | break; | |
1895 | ||
1896 | /* Require titles to start with a non-space character at the | |
1897 | * offset used by git log. */ | |
eb98559e JF |
1898 | /* FIXME: More gracefull handling of titles; append "..." to |
1899 | * shortened titles, etc. */ | |
2e8488b4 | 1900 | if (strncmp(line, " ", 4) || |
eb98559e | 1901 | isspace(line[4])) |
82e78006 JF |
1902 | break; |
1903 | ||
1904 | string_copy(commit->title, line + 4); | |
22f66b0a JF |
1905 | } |
1906 | ||
1907 | return TRUE; | |
1908 | } | |
1909 | ||
6b161b31 | 1910 | static bool |
fe7233c3 | 1911 | main_enter(struct view *view, struct line *line) |
b801d8b2 | 1912 | { |
b3a54cba JF |
1913 | enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT; |
1914 | ||
1915 | open_view(view, REQ_VIEW_DIFF, flags); | |
6b161b31 | 1916 | return TRUE; |
b801d8b2 JF |
1917 | } |
1918 | ||
6b161b31 | 1919 | static struct view_ops main_ops = { |
6734f6b9 | 1920 | "commit", |
6b161b31 JF |
1921 | main_draw, |
1922 | main_read, | |
1923 | main_enter, | |
1924 | }; | |
2e8488b4 | 1925 | |
c34d9c9f | 1926 | |
d839253b JF |
1927 | /* |
1928 | * Keys | |
1929 | */ | |
468876c9 JF |
1930 | |
1931 | struct keymap { | |
1932 | int alias; | |
1933 | int request; | |
1934 | }; | |
1935 | ||
3a91b75e | 1936 | static struct keymap keymap[] = { |
d839253b | 1937 | /* View switching */ |
b3a54cba JF |
1938 | { 'm', REQ_VIEW_MAIN }, |
1939 | { 'd', REQ_VIEW_DIFF }, | |
1940 | { 'l', REQ_VIEW_LOG }, | |
1941 | { 'p', REQ_VIEW_PAGER }, | |
1942 | { 'h', REQ_VIEW_HELP }, | |
24b5b3e0 | 1943 | { '?', REQ_VIEW_HELP }, |
b3a54cba | 1944 | |
d839253b | 1945 | /* View manipulation */ |
4f9b667a | 1946 | { 'q', REQ_VIEW_CLOSE }, |
468876c9 JF |
1947 | { KEY_TAB, REQ_VIEW_NEXT }, |
1948 | { KEY_RETURN, REQ_ENTER }, | |
b3a54cba JF |
1949 | { KEY_UP, REQ_PREVIOUS }, |
1950 | { KEY_DOWN, REQ_NEXT }, | |
468876c9 | 1951 | |
d839253b | 1952 | /* Cursor navigation */ |
b3a54cba JF |
1953 | { 'k', REQ_MOVE_UP }, |
1954 | { 'j', REQ_MOVE_DOWN }, | |
468876c9 JF |
1955 | { KEY_HOME, REQ_MOVE_FIRST_LINE }, |
1956 | { KEY_END, REQ_MOVE_LAST_LINE }, | |
1957 | { KEY_NPAGE, REQ_MOVE_PAGE_DOWN }, | |
c622eefa | 1958 | { ' ', REQ_MOVE_PAGE_DOWN }, |
468876c9 | 1959 | { KEY_PPAGE, REQ_MOVE_PAGE_UP }, |
c622eefa | 1960 | { 'b', REQ_MOVE_PAGE_UP }, |
0df811cb | 1961 | { '-', REQ_MOVE_PAGE_UP }, |
468876c9 | 1962 | |
d839253b | 1963 | /* Scrolling */ |
468876c9 JF |
1964 | { KEY_IC, REQ_SCROLL_LINE_UP }, |
1965 | { KEY_DC, REQ_SCROLL_LINE_DOWN }, | |
1966 | { 'w', REQ_SCROLL_PAGE_UP }, | |
1967 | { 's', REQ_SCROLL_PAGE_DOWN }, | |
1968 | ||
d839253b | 1969 | /* Misc */ |
d9d1c722 | 1970 | { 'Q', REQ_QUIT }, |
468876c9 JF |
1971 | { 'z', REQ_STOP_LOADING }, |
1972 | { 'v', REQ_SHOW_VERSION }, | |
1973 | { 'r', REQ_SCREEN_REDRAW }, | |
24b5b3e0 | 1974 | { 'n', REQ_TOGGLE_LINENO }, |
468876c9 JF |
1975 | { ':', REQ_PROMPT }, |
1976 | ||
1977 | /* wgetch() with nodelay() enabled returns ERR when there's no input. */ | |
1978 | { ERR, REQ_SCREEN_UPDATE }, | |
1979 | ||
1980 | /* Use the ncurses SIGWINCH handler. */ | |
1981 | { KEY_RESIZE, REQ_SCREEN_RESIZE }, | |
1982 | }; | |
1983 | ||
1984 | static enum request | |
1985 | get_request(int key) | |
1986 | { | |
1987 | int i; | |
1988 | ||
1989 | for (i = 0; i < ARRAY_SIZE(keymap); i++) | |
1990 | if (keymap[i].alias == key) | |
1991 | return keymap[i].request; | |
1992 | ||
1993 | return (enum request) key; | |
1994 | } | |
1995 | ||
24b5b3e0 JF |
1996 | struct key { |
1997 | char *name; | |
1998 | int value; | |
1999 | }; | |
2000 | ||
2001 | static struct key key_table[] = { | |
2002 | { "Enter", KEY_RETURN }, | |
2003 | { "Space", ' ' }, | |
2004 | { "Backspace", KEY_BACKSPACE }, | |
2005 | { "Tab", KEY_TAB }, | |
2006 | { "Escape", KEY_ESC }, | |
2007 | { "Left", KEY_LEFT }, | |
2008 | { "Right", KEY_RIGHT }, | |
2009 | { "Up", KEY_UP }, | |
2010 | { "Down", KEY_DOWN }, | |
2011 | { "Insert", KEY_IC }, | |
2012 | { "Delete", KEY_DC }, | |
2013 | { "Home", KEY_HOME }, | |
2014 | { "End", KEY_END }, | |
2015 | { "PageUp", KEY_PPAGE }, | |
2016 | { "PageDown", KEY_NPAGE }, | |
2017 | { "F1", KEY_F(1) }, | |
2018 | { "F2", KEY_F(2) }, | |
2019 | { "F3", KEY_F(3) }, | |
2020 | { "F4", KEY_F(4) }, | |
2021 | { "F5", KEY_F(5) }, | |
2022 | { "F6", KEY_F(6) }, | |
2023 | { "F7", KEY_F(7) }, | |
2024 | { "F8", KEY_F(8) }, | |
2025 | { "F9", KEY_F(9) }, | |
2026 | { "F10", KEY_F(10) }, | |
2027 | { "F11", KEY_F(11) }, | |
2028 | { "F12", KEY_F(12) }, | |
2029 | }; | |
2030 | ||
2031 | static char * | |
2032 | get_key(enum request request) | |
2033 | { | |
2034 | static char buf[BUFSIZ]; | |
2035 | static char key_char[] = "'X'"; | |
2036 | int pos = 0; | |
2037 | char *sep = " "; | |
2038 | int i; | |
2039 | ||
2040 | buf[pos] = 0; | |
2041 | ||
2042 | for (i = 0; i < ARRAY_SIZE(keymap); i++) { | |
2043 | char *seq = NULL; | |
2044 | int key; | |
2045 | ||
2046 | if (keymap[i].request != request) | |
2047 | continue; | |
2048 | ||
2049 | for (key = 0; key < ARRAY_SIZE(key_table); key++) | |
2050 | if (key_table[key].value == keymap[i].alias) | |
2051 | seq = key_table[key].name; | |
2052 | ||
2053 | if (seq == NULL && | |
2054 | keymap[i].alias < 127 && | |
2055 | isprint(keymap[i].alias)) { | |
2056 | key_char[1] = (char) keymap[i].alias; | |
2057 | seq = key_char; | |
2058 | } | |
2059 | ||
2060 | if (!seq) | |
2061 | seq = "'?'"; | |
2062 | ||
cc2d1364 | 2063 | if (!string_format_from(buf, &pos, "%s%s", sep, seq)) |
24b5b3e0 JF |
2064 | return "Too many keybindings!"; |
2065 | sep = ", "; | |
2066 | } | |
2067 | ||
2068 | return buf; | |
2069 | } | |
2070 | ||
2071 | static void load_help_page(void) | |
2072 | { | |
2073 | char buf[BUFSIZ]; | |
2074 | struct view *view = VIEW(REQ_VIEW_HELP); | |
2075 | int lines = ARRAY_SIZE(req_info) + 2; | |
2076 | int i; | |
2077 | ||
2078 | if (view->lines > 0) | |
2079 | return; | |
2080 | ||
2081 | for (i = 0; i < ARRAY_SIZE(req_info); i++) | |
2082 | if (!req_info[i].request) | |
2083 | lines++; | |
2084 | ||
2085 | view->line = calloc(lines, sizeof(*view->line)); | |
2086 | if (!view->line) { | |
2087 | report("Allocation failure"); | |
2088 | return; | |
2089 | } | |
2090 | ||
701e4f5d | 2091 | pager_read(view, "Quick reference for tig keybindings:"); |
24b5b3e0 JF |
2092 | |
2093 | for (i = 0; i < ARRAY_SIZE(req_info); i++) { | |
2094 | char *key; | |
2095 | ||
2096 | if (!req_info[i].request) { | |
701e4f5d JF |
2097 | pager_read(view, ""); |
2098 | pager_read(view, req_info[i].help); | |
24b5b3e0 JF |
2099 | continue; |
2100 | } | |
2101 | ||
2102 | key = get_key(req_info[i].request); | |
fff1780f | 2103 | if (!string_format(buf, "%-25s %s", key, req_info[i].help)) |
24b5b3e0 JF |
2104 | continue; |
2105 | ||
701e4f5d | 2106 | pager_read(view, buf); |
24b5b3e0 JF |
2107 | } |
2108 | } | |
2109 | ||
468876c9 | 2110 | |
6b161b31 | 2111 | /* |
10e290ee JF |
2112 | * Unicode / UTF-8 handling |
2113 | * | |
2114 | * NOTE: Much of the following code for dealing with unicode is derived from | |
2115 | * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is | |
2116 | * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28. | |
2117 | */ | |
2118 | ||
2119 | /* I've (over)annotated a lot of code snippets because I am not entirely | |
2120 | * confident that the approach taken by this small UTF-8 interface is correct. | |
2121 | * --jonas */ | |
2122 | ||
2123 | static inline int | |
2124 | unicode_width(unsigned long c) | |
2125 | { | |
2126 | if (c >= 0x1100 && | |
2127 | (c <= 0x115f /* Hangul Jamo */ | |
2128 | || c == 0x2329 | |
2129 | || c == 0x232a | |
2130 | || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f) | |
f97f4012 | 2131 | /* CJK ... Yi */ |
10e290ee JF |
2132 | || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */ |
2133 | || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */ | |
2134 | || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */ | |
2135 | || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */ | |
2136 | || (c >= 0xffe0 && c <= 0xffe6) | |
2137 | || (c >= 0x20000 && c <= 0x2fffd) | |
2138 | || (c >= 0x30000 && c <= 0x3fffd))) | |
2139 | return 2; | |
2140 | ||
2141 | return 1; | |
2142 | } | |
2143 | ||
2144 | /* Number of bytes used for encoding a UTF-8 character indexed by first byte. | |
2145 | * Illegal bytes are set one. */ | |
2146 | static const unsigned char utf8_bytes[256] = { | |
2147 | 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, | |
2148 | 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, | |
2149 | 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, | |
2150 | 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, | |
2151 | 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, | |
2152 | 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, | |
2153 | 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, | |
2154 | 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, | |
2155 | }; | |
2156 | ||
2157 | /* Decode UTF-8 multi-byte representation into a unicode character. */ | |
2158 | static inline unsigned long | |
2159 | utf8_to_unicode(const char *string, size_t length) | |
2160 | { | |
2161 | unsigned long unicode; | |
2162 | ||
2163 | switch (length) { | |
2164 | case 1: | |
2165 | unicode = string[0]; | |
2166 | break; | |
2167 | case 2: | |
2168 | unicode = (string[0] & 0x1f) << 6; | |
2169 | unicode += (string[1] & 0x3f); | |
2170 | break; | |
2171 | case 3: | |
2172 | unicode = (string[0] & 0x0f) << 12; | |
2173 | unicode += ((string[1] & 0x3f) << 6); | |
2174 | unicode += (string[2] & 0x3f); | |
2175 | break; | |
2176 | case 4: | |
2177 | unicode = (string[0] & 0x0f) << 18; | |
2178 | unicode += ((string[1] & 0x3f) << 12); | |
2179 | unicode += ((string[2] & 0x3f) << 6); | |
2180 | unicode += (string[3] & 0x3f); | |
2181 | break; | |
2182 | case 5: | |
2183 | unicode = (string[0] & 0x0f) << 24; | |
2184 | unicode += ((string[1] & 0x3f) << 18); | |
2185 | unicode += ((string[2] & 0x3f) << 12); | |
2186 | unicode += ((string[3] & 0x3f) << 6); | |
2187 | unicode += (string[4] & 0x3f); | |
2188 | break; | |
68b6e0eb | 2189 | case 6: |
10e290ee JF |
2190 | unicode = (string[0] & 0x01) << 30; |
2191 | unicode += ((string[1] & 0x3f) << 24); | |
2192 | unicode += ((string[2] & 0x3f) << 18); | |
2193 | unicode += ((string[3] & 0x3f) << 12); | |
2194 | unicode += ((string[4] & 0x3f) << 6); | |
2195 | unicode += (string[5] & 0x3f); | |
2196 | break; | |
2197 | default: | |
2198 | die("Invalid unicode length"); | |
2199 | } | |
2200 | ||
2201 | /* Invalid characters could return the special 0xfffd value but NUL | |
2202 | * should be just as good. */ | |
2203 | return unicode > 0xffff ? 0 : unicode; | |
2204 | } | |
2205 | ||
2206 | /* Calculates how much of string can be shown within the given maximum width | |
2207 | * and sets trimmed parameter to non-zero value if all of string could not be | |
2208 | * shown. | |
2209 | * | |
2210 | * Additionally, adds to coloffset how many many columns to move to align with | |
2211 | * the expected position. Takes into account how multi-byte and double-width | |
2212 | * characters will effect the cursor position. | |
2213 | * | |
2214 | * Returns the number of bytes to output from string to satisfy max_width. */ | |
2215 | static size_t | |
2216 | utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed) | |
2217 | { | |
2218 | const char *start = string; | |
2219 | const char *end = strchr(string, '\0'); | |
2220 | size_t mbwidth = 0; | |
2221 | size_t width = 0; | |
2222 | ||
2223 | *trimmed = 0; | |
2224 | ||
2225 | while (string < end) { | |
2226 | int c = *(unsigned char *) string; | |
2227 | unsigned char bytes = utf8_bytes[c]; | |
2228 | size_t ucwidth; | |
2229 | unsigned long unicode; | |
2230 | ||
2231 | if (string + bytes > end) | |
2232 | break; | |
2233 | ||
2234 | /* Change representation to figure out whether | |
2235 | * it is a single- or double-width character. */ | |
2236 | ||
2237 | unicode = utf8_to_unicode(string, bytes); | |
2238 | /* FIXME: Graceful handling of invalid unicode character. */ | |
2239 | if (!unicode) | |
2240 | break; | |
2241 | ||
2242 | ucwidth = unicode_width(unicode); | |
2243 | width += ucwidth; | |
2244 | if (width > max_width) { | |
2245 | *trimmed = 1; | |
2246 | break; | |
2247 | } | |
2248 | ||
2249 | /* The column offset collects the differences between the | |
2250 | * number of bytes encoding a character and the number of | |
2251 | * columns will be used for rendering said character. | |
2252 | * | |
2253 | * So if some character A is encoded in 2 bytes, but will be | |
2254 | * represented on the screen using only 1 byte this will and up | |
2255 | * adding 1 to the multi-byte column offset. | |
2256 | * | |
2257 | * Assumes that no double-width character can be encoding in | |
2258 | * less than two bytes. */ | |
2259 | if (bytes > ucwidth) | |
2260 | mbwidth += bytes - ucwidth; | |
2261 | ||
2262 | string += bytes; | |
2263 | } | |
2264 | ||
2265 | *coloffset += mbwidth; | |
2266 | ||
2267 | return string - start; | |
2268 | } | |
2269 | ||
2270 | ||
2271 | /* | |
6b161b31 JF |
2272 | * Status management |
2273 | */ | |
2e8488b4 | 2274 | |
8855ada4 | 2275 | /* Whether or not the curses interface has been initialized. */ |
68b6e0eb | 2276 | static bool cursed = FALSE; |
8855ada4 | 2277 | |
6b161b31 JF |
2278 | /* The status window is used for polling keystrokes. */ |
2279 | static WINDOW *status_win; | |
4a2909a7 | 2280 | |
2e8488b4 | 2281 | /* Update status and title window. */ |
4a2909a7 JF |
2282 | static void |
2283 | report(const char *msg, ...) | |
2284 | { | |
6706b2ba JF |
2285 | static bool empty = TRUE; |
2286 | struct view *view = display[current_view]; | |
b76c2afc | 2287 | |
6706b2ba JF |
2288 | if (!empty || *msg) { |
2289 | va_list args; | |
4a2909a7 | 2290 | |
6706b2ba | 2291 | va_start(args, msg); |
4b76734f | 2292 | |
6706b2ba JF |
2293 | werase(status_win); |
2294 | wmove(status_win, 0, 0); | |
2295 | if (*msg) { | |
2296 | vwprintw(status_win, msg, args); | |
2297 | empty = FALSE; | |
2298 | } else { | |
2299 | empty = TRUE; | |
2300 | } | |
2301 | wrefresh(status_win); | |
b801d8b2 | 2302 | |
6706b2ba JF |
2303 | va_end(args); |
2304 | } | |
2305 | ||
2306 | update_view_title(view); | |
85af6284 | 2307 | update_display_cursor(); |
b801d8b2 JF |
2308 | } |
2309 | ||
6b161b31 JF |
2310 | /* Controls when nodelay should be in effect when polling user input. */ |
2311 | static void | |
1ba2ae4b | 2312 | set_nonblocking_input(bool loading) |
b801d8b2 | 2313 | { |
6706b2ba | 2314 | static unsigned int loading_views; |
b801d8b2 | 2315 | |
6706b2ba JF |
2316 | if ((loading == FALSE && loading_views-- == 1) || |
2317 | (loading == TRUE && loading_views++ == 0)) | |
1ba2ae4b | 2318 | nodelay(status_win, loading); |
6b161b31 JF |
2319 | } |
2320 | ||
2321 | static void | |
2322 | init_display(void) | |
2323 | { | |
2324 | int x, y; | |
b76c2afc | 2325 | |
6908bdbd JF |
2326 | /* Initialize the curses library */ |
2327 | if (isatty(STDIN_FILENO)) { | |
8855ada4 | 2328 | cursed = !!initscr(); |
6908bdbd JF |
2329 | } else { |
2330 | /* Leave stdin and stdout alone when acting as a pager. */ | |
2331 | FILE *io = fopen("/dev/tty", "r+"); | |
2332 | ||
8855ada4 | 2333 | cursed = !!newterm(NULL, io, io); |
6908bdbd JF |
2334 | } |
2335 | ||
8855ada4 JF |
2336 | if (!cursed) |
2337 | die("Failed to initialize curses"); | |
2338 | ||
2e8488b4 JF |
2339 | nonl(); /* Tell curses not to do NL->CR/NL on output */ |
2340 | cbreak(); /* Take input chars one at a time, no wait for \n */ | |
2341 | noecho(); /* Don't echo input */ | |
b801d8b2 | 2342 | leaveok(stdscr, TRUE); |
b801d8b2 JF |
2343 | |
2344 | if (has_colors()) | |
2345 | init_colors(); | |
2346 | ||
2347 | getmaxyx(stdscr, y, x); | |
2348 | status_win = newwin(1, 0, y - 1, 0); | |
2349 | if (!status_win) | |
2350 | die("Failed to create status window"); | |
2351 | ||
2352 | /* Enable keyboard mapping */ | |
2353 | keypad(status_win, TRUE); | |
78c70acd | 2354 | wbkgdset(status_win, get_line_attr(LINE_STATUS)); |
6b161b31 JF |
2355 | } |
2356 | ||
c34d9c9f JF |
2357 | |
2358 | /* | |
2359 | * Repository references | |
2360 | */ | |
2361 | ||
2362 | static struct ref *refs; | |
3a91b75e | 2363 | static size_t refs_size; |
c34d9c9f | 2364 | |
1307df1a JF |
2365 | /* Id <-> ref store */ |
2366 | static struct ref ***id_refs; | |
2367 | static size_t id_refs_size; | |
2368 | ||
c34d9c9f JF |
2369 | static struct ref ** |
2370 | get_refs(char *id) | |
2371 | { | |
1307df1a JF |
2372 | struct ref ***tmp_id_refs; |
2373 | struct ref **ref_list = NULL; | |
2374 | size_t ref_list_size = 0; | |
c34d9c9f JF |
2375 | size_t i; |
2376 | ||
1307df1a JF |
2377 | for (i = 0; i < id_refs_size; i++) |
2378 | if (!strcmp(id, id_refs[i][0]->id)) | |
2379 | return id_refs[i]; | |
2380 | ||
2381 | tmp_id_refs = realloc(id_refs, (id_refs_size + 1) * sizeof(*id_refs)); | |
2382 | if (!tmp_id_refs) | |
2383 | return NULL; | |
2384 | ||
2385 | id_refs = tmp_id_refs; | |
2386 | ||
c34d9c9f JF |
2387 | for (i = 0; i < refs_size; i++) { |
2388 | struct ref **tmp; | |
2389 | ||
2390 | if (strcmp(id, refs[i].id)) | |
2391 | continue; | |
2392 | ||
1307df1a | 2393 | tmp = realloc(ref_list, (ref_list_size + 1) * sizeof(*ref_list)); |
c34d9c9f | 2394 | if (!tmp) { |
1307df1a JF |
2395 | if (ref_list) |
2396 | free(ref_list); | |
c34d9c9f JF |
2397 | return NULL; |
2398 | } | |
2399 | ||
1307df1a JF |
2400 | ref_list = tmp; |
2401 | if (ref_list_size > 0) | |
2402 | ref_list[ref_list_size - 1]->next = 1; | |
2403 | ref_list[ref_list_size] = &refs[i]; | |
3af8774e JF |
2404 | |
2405 | /* XXX: The properties of the commit chains ensures that we can | |
2406 | * safely modify the shared ref. The repo references will | |
2407 | * always be similar for the same id. */ | |
1307df1a JF |
2408 | ref_list[ref_list_size]->next = 0; |
2409 | ref_list_size++; | |
c34d9c9f JF |
2410 | } |
2411 | ||
1307df1a JF |
2412 | if (ref_list) |
2413 | id_refs[id_refs_size++] = ref_list; | |
2414 | ||
2415 | return ref_list; | |
c34d9c9f JF |
2416 | } |
2417 | ||
2418 | static int | |
d0cea5f9 | 2419 | read_ref(char *id, int idlen, char *name, int namelen) |
c34d9c9f | 2420 | { |
d0cea5f9 JF |
2421 | struct ref *ref; |
2422 | bool tag = FALSE; | |
d0cea5f9 | 2423 | |
8b0297ae JF |
2424 | if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) { |
2425 | /* Commits referenced by tags has "^{}" appended. */ | |
2426 | if (name[namelen - 1] != '}') | |
2427 | return OK; | |
2428 | ||
d0cea5f9 JF |
2429 | while (namelen > 0 && name[namelen] != '^') |
2430 | namelen--; | |
c34d9c9f | 2431 | |
d0cea5f9 | 2432 | tag = TRUE; |
8b0297ae JF |
2433 | namelen -= STRING_SIZE("refs/tags/"); |
2434 | name += STRING_SIZE("refs/tags/"); | |
c34d9c9f | 2435 | |
d0cea5f9 | 2436 | } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) { |
8b0297ae JF |
2437 | namelen -= STRING_SIZE("refs/heads/"); |
2438 | name += STRING_SIZE("refs/heads/"); | |
c34d9c9f | 2439 | |
d0cea5f9 JF |
2440 | } else if (!strcmp(name, "HEAD")) { |
2441 | return OK; | |
2442 | } | |
6706b2ba | 2443 | |
d0cea5f9 JF |
2444 | refs = realloc(refs, sizeof(*refs) * (refs_size + 1)); |
2445 | if (!refs) | |
2446 | return ERR; | |
c34d9c9f | 2447 | |
d0cea5f9 | 2448 | ref = &refs[refs_size++]; |
8b0297ae | 2449 | ref->name = malloc(namelen + 1); |
d0cea5f9 JF |
2450 | if (!ref->name) |
2451 | return ERR; | |
3af8774e | 2452 | |
8b0297ae JF |
2453 | strncpy(ref->name, name, namelen); |
2454 | ref->name[namelen] = 0; | |
d0cea5f9 JF |
2455 | ref->tag = tag; |
2456 | string_copy(ref->id, id); | |
3af8774e | 2457 | |
d0cea5f9 JF |
2458 | return OK; |
2459 | } | |
c34d9c9f | 2460 | |
d0cea5f9 JF |
2461 | static int |
2462 | load_refs(void) | |
2463 | { | |
2464 | const char *cmd_env = getenv("TIG_LS_REMOTE"); | |
2465 | const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE; | |
c34d9c9f | 2466 | |
4a63c884 | 2467 | return read_properties(popen(cmd, "r"), "\t", read_ref); |
d0cea5f9 | 2468 | } |
c34d9c9f | 2469 | |
d0cea5f9 | 2470 | static int |
14c778a6 | 2471 | read_repo_config_option(char *name, int namelen, char *value, int valuelen) |
d0cea5f9 | 2472 | { |
22913179 | 2473 | if (!strcmp(name, "i18n.commitencoding")) |
d0cea5f9 | 2474 | string_copy(opt_encoding, value); |
c34d9c9f | 2475 | |
c34d9c9f JF |
2476 | return OK; |
2477 | } | |
2478 | ||
4670cf89 | 2479 | static int |
14c778a6 | 2480 | load_repo_config(void) |
4670cf89 | 2481 | { |
66749723 | 2482 | return read_properties(popen("git repo-config --list", "r"), |
14c778a6 | 2483 | "=", read_repo_config_option); |
d0cea5f9 JF |
2484 | } |
2485 | ||
2486 | static int | |
4a63c884 | 2487 | read_properties(FILE *pipe, const char *separators, |
d0cea5f9 JF |
2488 | int (*read_property)(char *, int, char *, int)) |
2489 | { | |
4670cf89 JF |
2490 | char buffer[BUFSIZ]; |
2491 | char *name; | |
d0cea5f9 | 2492 | int state = OK; |
4670cf89 JF |
2493 | |
2494 | if (!pipe) | |
2495 | return ERR; | |
2496 | ||
d0cea5f9 | 2497 | while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) { |
4a63c884 JF |
2498 | char *value; |
2499 | size_t namelen; | |
2500 | size_t valuelen; | |
4670cf89 | 2501 | |
4a63c884 JF |
2502 | name = chomp_string(name); |
2503 | namelen = strcspn(name, separators); | |
2504 | ||
2505 | if (name[namelen]) { | |
2506 | name[namelen] = 0; | |
2507 | value = chomp_string(name + namelen + 1); | |
d0cea5f9 | 2508 | valuelen = strlen(value); |
4670cf89 | 2509 | |
d0cea5f9 | 2510 | } else { |
d0cea5f9 JF |
2511 | value = ""; |
2512 | valuelen = 0; | |
4670cf89 | 2513 | } |
d0cea5f9 | 2514 | |
3c3801c2 | 2515 | state = read_property(name, namelen, value, valuelen); |
4670cf89 JF |
2516 | } |
2517 | ||
d0cea5f9 JF |
2518 | if (state != ERR && ferror(pipe)) |
2519 | state = ERR; | |
4670cf89 JF |
2520 | |
2521 | pclose(pipe); | |
2522 | ||
d0cea5f9 | 2523 | return state; |
4670cf89 JF |
2524 | } |
2525 | ||
d0cea5f9 | 2526 | |
6b161b31 JF |
2527 | /* |
2528 | * Main | |
2529 | */ | |
2530 | ||
b5c9e67f TH |
2531 | #if __GNUC__ >= 3 |
2532 | #define __NORETURN __attribute__((__noreturn__)) | |
2533 | #else | |
2534 | #define __NORETURN | |
2535 | #endif | |
2536 | ||
2537 | static void __NORETURN | |
6b161b31 JF |
2538 | quit(int sig) |
2539 | { | |
8855ada4 JF |
2540 | /* XXX: Restore tty modes and let the OS cleanup the rest! */ |
2541 | if (cursed) | |
2542 | endwin(); | |
6b161b31 JF |
2543 | exit(0); |
2544 | } | |
2545 | ||
c6704a4e JF |
2546 | static void __NORETURN |
2547 | die(const char *err, ...) | |
6b161b31 JF |
2548 | { |
2549 | va_list args; | |
2550 | ||
2551 | endwin(); | |
2552 | ||
2553 | va_start(args, err); | |
2554 | fputs("tig: ", stderr); | |
2555 | vfprintf(stderr, err, args); | |
2556 | fputs("\n", stderr); | |
2557 | va_end(args); | |
2558 | ||
2559 | exit(1); | |
2560 | } | |
2561 | ||
2562 | int | |
2563 | main(int argc, char *argv[]) | |
2564 | { | |
1ba2ae4b | 2565 | struct view *view; |
6b161b31 | 2566 | enum request request; |
1ba2ae4b | 2567 | size_t i; |
6b161b31 JF |
2568 | |
2569 | signal(SIGINT, quit); | |
2570 | ||
660e09ad JF |
2571 | if (load_options() == ERR) |
2572 | die("Failed to load user config."); | |
2573 | ||
2574 | /* Load the repo config file so options can be overwritten from | |
afdc35b3 | 2575 | * the command line. */ |
14c778a6 | 2576 | if (load_repo_config() == ERR) |
afdc35b3 JF |
2577 | die("Failed to load repo config."); |
2578 | ||
8855ada4 | 2579 | if (!parse_options(argc, argv)) |
6b161b31 JF |
2580 | return 0; |
2581 | ||
c34d9c9f JF |
2582 | if (load_refs() == ERR) |
2583 | die("Failed to load refs."); | |
2584 | ||
7bb55251 JF |
2585 | /* Require a git repository unless when running in pager mode. */ |
2586 | if (refs_size == 0 && opt_request != REQ_VIEW_PAGER) | |
2587 | die("Not a git repository"); | |
2588 | ||
1ba2ae4b JF |
2589 | for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++) |
2590 | view->cmd_env = getenv(view->cmd_env); | |
2591 | ||
6b161b31 JF |
2592 | request = opt_request; |
2593 | ||
2594 | init_display(); | |
b801d8b2 JF |
2595 | |
2596 | while (view_driver(display[current_view], request)) { | |
6b161b31 | 2597 | int key; |
b801d8b2 JF |
2598 | int i; |
2599 | ||
6b161b31 JF |
2600 | foreach_view (view, i) |
2601 | update_view(view); | |
b801d8b2 JF |
2602 | |
2603 | /* Refresh, accept single keystroke of input */ | |
6b161b31 JF |
2604 | key = wgetch(status_win); |
2605 | request = get_request(key); | |
03a93dbb | 2606 | |
6706b2ba | 2607 | /* Some low-level request handling. This keeps access to |
fac7db6c JF |
2608 | * status_win restricted. */ |
2609 | switch (request) { | |
2610 | case REQ_PROMPT: | |
6908bdbd JF |
2611 | report(":"); |
2612 | /* Temporarily switch to line-oriented and echoed | |
2613 | * input. */ | |
03a93dbb JF |
2614 | nocbreak(); |
2615 | echo(); | |
49f2b43f JF |
2616 | |
2617 | if (wgetnstr(status_win, opt_cmd + 4, sizeof(opt_cmd) - 4) == OK) { | |
2618 | memcpy(opt_cmd, "git ", 4); | |
2619 | opt_request = REQ_VIEW_PAGER; | |
2620 | } else { | |
6a7bb912 JF |
2621 | report("Prompt interrupted by loading view, " |
2622 | "press 'z' to stop loading views"); | |
2623 | request = REQ_SCREEN_UPDATE; | |
49f2b43f JF |
2624 | } |
2625 | ||
6908bdbd JF |
2626 | noecho(); |
2627 | cbreak(); | |
fac7db6c JF |
2628 | break; |
2629 | ||
2630 | case REQ_SCREEN_RESIZE: | |
2631 | { | |
2632 | int height, width; | |
2633 | ||
2634 | getmaxyx(stdscr, height, width); | |
2635 | ||
2636 | /* Resize the status view and let the view driver take | |
2637 | * care of resizing the displayed views. */ | |
2638 | wresize(status_win, 1, width); | |
2639 | mvwin(status_win, height - 1, 0); | |
2640 | wrefresh(status_win); | |
2641 | break; | |
2642 | } | |
2643 | default: | |
2644 | break; | |
03a93dbb | 2645 | } |
b801d8b2 JF |
2646 | } |
2647 | ||
2648 | quit(0); | |
2649 | ||
2650 | return 0; | |
2651 | } |