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