![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
1 /* Copyright (c) 2006-2010 Jonas Fonseca <fonseca@diku.dk>
2 *
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.
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 */
14 #include "tig.h"
15 #include "io.h"
16 #include "graph.h"
18 static void __NORETURN die(const char *err, ...);
19 static void warn(const char *msg, ...);
20 static void report(const char *msg, ...);
23 struct ref {
24 char id[SIZEOF_REV]; /* Commit SHA1 ID */
25 unsigned int head:1; /* Is it the current HEAD? */
26 unsigned int tag:1; /* Is it a tag? */
27 unsigned int ltag:1; /* If so, is the tag local? */
28 unsigned int remote:1; /* Is it a remote ref? */
29 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
30 char name[1]; /* Ref name; tag or head names are shortened. */
31 };
33 struct ref_list {
34 char id[SIZEOF_REV]; /* Commit SHA1 ID */
35 size_t size; /* Number of refs. */
36 struct ref **refs; /* References for this ID. */
37 };
39 static struct ref *get_ref_head();
40 static struct ref_list *get_ref_list(const char *id);
41 static void foreach_ref(bool (*visitor)(void *data, const struct ref *ref), void *data);
42 static int load_refs(void);
44 enum input_status {
45 INPUT_OK,
46 INPUT_SKIP,
47 INPUT_STOP,
48 INPUT_CANCEL
49 };
51 typedef enum input_status (*input_handler)(void *data, char *buf, int c);
53 static char *prompt_input(const char *prompt, input_handler handler, void *data);
54 static bool prompt_yesno(const char *prompt);
56 struct menu_item {
57 int hotkey;
58 const char *text;
59 void *data;
60 };
62 static bool prompt_menu(const char *prompt, const struct menu_item *items, int *selected);
64 enum graphic {
65 GRAPHIC_ASCII = 0,
66 GRAPHIC_DEFAULT,
67 GRAPHIC_UTF8
68 };
70 static const struct enum_map graphic_map[] = {
71 #define GRAPHIC_(name) ENUM_MAP(#name, GRAPHIC_##name)
72 GRAPHIC_(ASCII),
73 GRAPHIC_(DEFAULT),
74 GRAPHIC_(UTF8)
75 #undef GRAPHIC_
76 };
78 #define DATE_INFO \
79 DATE_(NO), \
80 DATE_(DEFAULT), \
81 DATE_(LOCAL), \
82 DATE_(RELATIVE), \
83 DATE_(SHORT)
85 enum date {
86 #define DATE_(name) DATE_##name
87 DATE_INFO
88 #undef DATE_
89 };
91 static const struct enum_map date_map[] = {
92 #define DATE_(name) ENUM_MAP(#name, DATE_##name)
93 DATE_INFO
94 #undef DATE_
95 };
97 struct time {
98 time_t sec;
99 int tz;
100 };
102 static inline int timecmp(const struct time *t1, const struct time *t2)
103 {
104 return t1->sec - t2->sec;
105 }
107 static const char *
108 mkdate(const struct time *time, enum date date)
109 {
110 static char buf[DATE_COLS + 1];
111 static const struct enum_map reldate[] = {
112 { "second", 1, 60 * 2 },
113 { "minute", 60, 60 * 60 * 2 },
114 { "hour", 60 * 60, 60 * 60 * 24 * 2 },
115 { "day", 60 * 60 * 24, 60 * 60 * 24 * 7 * 2 },
116 { "week", 60 * 60 * 24 * 7, 60 * 60 * 24 * 7 * 5 },
117 { "month", 60 * 60 * 24 * 30, 60 * 60 * 24 * 30 * 12 },
118 };
119 struct tm tm;
121 if (!date || !time || !time->sec)
122 return "";
124 if (date == DATE_RELATIVE) {
125 struct timeval now;
126 time_t date = time->sec + time->tz;
127 time_t seconds;
128 int i;
130 gettimeofday(&now, NULL);
131 seconds = now.tv_sec < date ? date - now.tv_sec : now.tv_sec - date;
132 for (i = 0; i < ARRAY_SIZE(reldate); i++) {
133 if (seconds >= reldate[i].value)
134 continue;
136 seconds /= reldate[i].namelen;
137 if (!string_format(buf, "%ld %s%s %s",
138 seconds, reldate[i].name,
139 seconds > 1 ? "s" : "",
140 now.tv_sec >= date ? "ago" : "ahead"))
141 break;
142 return buf;
143 }
144 }
146 if (date == DATE_LOCAL) {
147 time_t date = time->sec + time->tz;
148 localtime_r(&date, &tm);
149 }
150 else {
151 gmtime_r(&time->sec, &tm);
152 }
153 return strftime(buf, sizeof(buf), DATE_FORMAT, &tm) ? buf : NULL;
154 }
157 #define AUTHOR_VALUES \
158 AUTHOR_(NO), \
159 AUTHOR_(FULL), \
160 AUTHOR_(ABBREVIATED)
162 enum author {
163 #define AUTHOR_(name) AUTHOR_##name
164 AUTHOR_VALUES,
165 #undef AUTHOR_
166 AUTHOR_DEFAULT = AUTHOR_FULL
167 };
169 static const struct enum_map author_map[] = {
170 #define AUTHOR_(name) ENUM_MAP(#name, AUTHOR_##name)
171 AUTHOR_VALUES
172 #undef AUTHOR_
173 };
175 static const char *
176 get_author_initials(const char *author)
177 {
178 static char initials[AUTHOR_COLS * 6 + 1];
179 size_t pos = 0;
180 const char *end = strchr(author, '\0');
182 #define is_initial_sep(c) (isspace(c) || ispunct(c) || (c) == '@' || (c) == '-')
184 memset(initials, 0, sizeof(initials));
185 while (author < end) {
186 unsigned char bytes;
187 size_t i;
189 while (is_initial_sep(*author))
190 author++;
192 bytes = utf8_char_length(author, end);
193 if (bytes < sizeof(initials) - 1 - pos) {
194 while (bytes--) {
195 initials[pos++] = *author++;
196 }
197 }
199 for (i = pos; author < end && !is_initial_sep(*author); author++) {
200 if (i < sizeof(initials) - 1)
201 initials[i++] = *author;
202 }
204 initials[i++] = 0;
205 }
207 return initials;
208 }
211 /*
212 * User requests
213 */
215 #define REQ_INFO \
216 /* XXX: Keep the view request first and in sync with views[]. */ \
217 REQ_GROUP("View switching") \
218 REQ_(VIEW_MAIN, "Show main view"), \
219 REQ_(VIEW_DIFF, "Show diff view"), \
220 REQ_(VIEW_LOG, "Show log view"), \
221 REQ_(VIEW_TREE, "Show tree view"), \
222 REQ_(VIEW_BLOB, "Show blob view"), \
223 REQ_(VIEW_BLAME, "Show blame view"), \
224 REQ_(VIEW_BRANCH, "Show branch view"), \
225 REQ_(VIEW_HELP, "Show help page"), \
226 REQ_(VIEW_PAGER, "Show pager view"), \
227 REQ_(VIEW_STATUS, "Show status view"), \
228 REQ_(VIEW_STAGE, "Show stage 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_(PARENT, "Move to parent"), \
235 REQ_(VIEW_NEXT, "Move focus to next view"), \
236 REQ_(REFRESH, "Reload and refresh"), \
237 REQ_(MAXIMIZE, "Maximize the current view"), \
238 REQ_(VIEW_CLOSE, "Close the current view"), \
239 REQ_(QUIT, "Close all views and quit"), \
240 \
241 REQ_GROUP("View specific requests") \
242 REQ_(STATUS_UPDATE, "Update file status"), \
243 REQ_(STATUS_REVERT, "Revert file changes"), \
244 REQ_(STATUS_MERGE, "Merge file using external tool"), \
245 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
246 \
247 REQ_GROUP("Cursor navigation") \
248 REQ_(MOVE_UP, "Move cursor one line up"), \
249 REQ_(MOVE_DOWN, "Move cursor one line down"), \
250 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
251 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
252 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
253 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
254 \
255 REQ_GROUP("Scrolling") \
256 REQ_(SCROLL_FIRST_COL, "Scroll to the first line columns"), \
257 REQ_(SCROLL_LEFT, "Scroll two columns left"), \
258 REQ_(SCROLL_RIGHT, "Scroll two columns right"), \
259 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
260 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
261 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
262 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
263 \
264 REQ_GROUP("Searching") \
265 REQ_(SEARCH, "Search the view"), \
266 REQ_(SEARCH_BACK, "Search backwards in the view"), \
267 REQ_(FIND_NEXT, "Find next search match"), \
268 REQ_(FIND_PREV, "Find previous search match"), \
269 \
270 REQ_GROUP("Option manipulation") \
271 REQ_(OPTIONS, "Open option menu"), \
272 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
273 REQ_(TOGGLE_DATE, "Toggle date display"), \
274 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
275 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
276 REQ_(TOGGLE_GRAPHIC, "Toggle (line) graphics mode"), \
277 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
278 REQ_(TOGGLE_SORT_ORDER, "Toggle ascending/descending sort order"), \
279 REQ_(TOGGLE_SORT_FIELD, "Toggle field to sort by"), \
280 \
281 REQ_GROUP("Misc") \
282 REQ_(PROMPT, "Bring up the prompt"), \
283 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
284 REQ_(SHOW_VERSION, "Show version information"), \
285 REQ_(STOP_LOADING, "Stop all loading views"), \
286 REQ_(EDIT, "Open in editor"), \
287 REQ_(NONE, "Do nothing")
290 /* User action requests. */
291 enum request {
292 #define REQ_GROUP(help)
293 #define REQ_(req, help) REQ_##req
295 /* Offset all requests to avoid conflicts with ncurses getch values. */
296 REQ_UNKNOWN = KEY_MAX + 1,
297 REQ_OFFSET,
298 REQ_INFO
300 #undef REQ_GROUP
301 #undef REQ_
302 };
304 struct request_info {
305 enum request request;
306 const char *name;
307 int namelen;
308 const char *help;
309 };
311 static const struct request_info req_info[] = {
312 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
313 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
314 REQ_INFO
315 #undef REQ_GROUP
316 #undef REQ_
317 };
319 static enum request
320 get_request(const char *name)
321 {
322 int namelen = strlen(name);
323 int i;
325 for (i = 0; i < ARRAY_SIZE(req_info); i++)
326 if (enum_equals(req_info[i], name, namelen))
327 return req_info[i].request;
329 return REQ_UNKNOWN;
330 }
333 /*
334 * Options
335 */
337 /* Option and state variables. */
338 static enum graphic opt_line_graphics = GRAPHIC_DEFAULT;
339 static enum date opt_date = DATE_DEFAULT;
340 static enum author opt_author = AUTHOR_DEFAULT;
341 static bool opt_rev_graph = TRUE;
342 static bool opt_line_number = FALSE;
343 static bool opt_show_refs = TRUE;
344 static bool opt_untracked_dirs_content = TRUE;
345 static int opt_num_interval = 5;
346 static double opt_hscroll = 0.50;
347 static double opt_scale_split_view = 2.0 / 3.0;
348 static int opt_tab_size = 8;
349 static int opt_author_cols = AUTHOR_COLS;
350 static char opt_path[SIZEOF_STR] = "";
351 static char opt_file[SIZEOF_STR] = "";
352 static char opt_ref[SIZEOF_REF] = "";
353 static char opt_head[SIZEOF_REF] = "";
354 static char opt_remote[SIZEOF_REF] = "";
355 static char opt_encoding[20] = "UTF-8";
356 static iconv_t opt_iconv_in = ICONV_NONE;
357 static iconv_t opt_iconv_out = ICONV_NONE;
358 static char opt_search[SIZEOF_STR] = "";
359 static char opt_cdup[SIZEOF_STR] = "";
360 static char opt_prefix[SIZEOF_STR] = "";
361 static char opt_git_dir[SIZEOF_STR] = "";
362 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
363 static char opt_editor[SIZEOF_STR] = "";
364 static FILE *opt_tty = NULL;
365 static const char **opt_diff_argv = NULL;
366 static const char **opt_rev_argv = NULL;
367 static const char **opt_file_argv = NULL;
368 static const char **opt_blame_argv = NULL;
370 #define is_initial_commit() (!get_ref_head())
371 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || (get_ref_head() && !strcmp(rev, get_ref_head()->id)))
374 /*
375 * Line-oriented content detection.
376 */
378 #define LINE_INFO \
379 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
380 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
381 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
382 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
383 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
384 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
385 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
386 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
387 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
388 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
389 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
390 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
391 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
392 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
393 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
394 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
395 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
396 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
397 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
398 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
399 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
400 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
401 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
402 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
403 LINE(AUTHOR, "author ", COLOR_GREEN, COLOR_DEFAULT, 0), \
404 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
405 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
406 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
407 LINE(TESTED, " Tested-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
408 LINE(REVIEWED, " Reviewed-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
409 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
410 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
411 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
412 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
413 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
414 LINE(MODE, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
415 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
416 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
417 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
418 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
419 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
420 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
421 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
422 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
423 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
424 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
425 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
426 LINE(TREE_HEAD, "", COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD), \
427 LINE(TREE_DIR, "", COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), \
428 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
429 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
430 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
431 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
432 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
433 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
434 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
435 LINE(HELP_KEYMAP, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
436 LINE(HELP_GROUP, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
437 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
438 LINE(GRAPH_LINE_0, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
439 LINE(GRAPH_LINE_1, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
440 LINE(GRAPH_LINE_2, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
441 LINE(GRAPH_LINE_3, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
442 LINE(GRAPH_LINE_4, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
443 LINE(GRAPH_LINE_5, "", COLOR_WHITE, COLOR_DEFAULT, 0), \
444 LINE(GRAPH_LINE_6, "", COLOR_RED, COLOR_DEFAULT, 0), \
445 LINE(GRAPH_COMMIT, "", COLOR_BLUE, COLOR_DEFAULT, 0)
447 enum line_type {
448 #define LINE(type, line, fg, bg, attr) \
449 LINE_##type
450 LINE_INFO,
451 LINE_NONE
452 #undef LINE
453 };
455 struct line_info {
456 const char *name; /* Option name. */
457 int namelen; /* Size of option name. */
458 const char *line; /* The start of line to match. */
459 int linelen; /* Size of string to match. */
460 int fg, bg, attr; /* Color and text attributes for the lines. */
461 };
463 static struct line_info line_info[] = {
464 #define LINE(type, line, fg, bg, attr) \
465 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
466 LINE_INFO
467 #undef LINE
468 };
470 static enum line_type
471 get_line_type(const char *line)
472 {
473 int linelen = strlen(line);
474 enum line_type type;
476 for (type = 0; type < ARRAY_SIZE(line_info); type++)
477 /* Case insensitive search matches Signed-off-by lines better. */
478 if (linelen >= line_info[type].linelen &&
479 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
480 return type;
482 return LINE_DEFAULT;
483 }
485 static inline int
486 get_line_attr(enum line_type type)
487 {
488 assert(type < ARRAY_SIZE(line_info));
489 return COLOR_PAIR(type) | line_info[type].attr;
490 }
492 static struct line_info *
493 get_line_info(const char *name)
494 {
495 size_t namelen = strlen(name);
496 enum line_type type;
498 for (type = 0; type < ARRAY_SIZE(line_info); type++)
499 if (enum_equals(line_info[type], name, namelen))
500 return &line_info[type];
502 return NULL;
503 }
505 static void
506 init_colors(void)
507 {
508 int default_bg = line_info[LINE_DEFAULT].bg;
509 int default_fg = line_info[LINE_DEFAULT].fg;
510 enum line_type type;
512 start_color();
514 if (assume_default_colors(default_fg, default_bg) == ERR) {
515 default_bg = COLOR_BLACK;
516 default_fg = COLOR_WHITE;
517 }
519 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
520 struct line_info *info = &line_info[type];
521 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
522 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
524 init_pair(type, fg, bg);
525 }
526 }
528 struct line {
529 enum line_type type;
531 /* State flags */
532 unsigned int selected:1;
533 unsigned int dirty:1;
534 unsigned int cleareol:1;
535 unsigned int other:16;
537 void *data; /* User data */
538 };
541 /*
542 * Keys
543 */
545 struct keybinding {
546 int alias;
547 enum request request;
548 };
550 static struct keybinding default_keybindings[] = {
551 /* View switching */
552 { 'm', REQ_VIEW_MAIN },
553 { 'd', REQ_VIEW_DIFF },
554 { 'l', REQ_VIEW_LOG },
555 { 't', REQ_VIEW_TREE },
556 { 'f', REQ_VIEW_BLOB },
557 { 'B', REQ_VIEW_BLAME },
558 { 'H', REQ_VIEW_BRANCH },
559 { 'p', REQ_VIEW_PAGER },
560 { 'h', REQ_VIEW_HELP },
561 { 'S', REQ_VIEW_STATUS },
562 { 'c', REQ_VIEW_STAGE },
564 /* View manipulation */
565 { 'q', REQ_VIEW_CLOSE },
566 { KEY_TAB, REQ_VIEW_NEXT },
567 { KEY_RETURN, REQ_ENTER },
568 { KEY_UP, REQ_PREVIOUS },
569 { KEY_CTL('P'), REQ_PREVIOUS },
570 { KEY_DOWN, REQ_NEXT },
571 { KEY_CTL('N'), REQ_NEXT },
572 { 'R', REQ_REFRESH },
573 { KEY_F(5), REQ_REFRESH },
574 { 'O', REQ_MAXIMIZE },
576 /* Cursor navigation */
577 { 'k', REQ_MOVE_UP },
578 { 'j', REQ_MOVE_DOWN },
579 { KEY_HOME, REQ_MOVE_FIRST_LINE },
580 { KEY_END, REQ_MOVE_LAST_LINE },
581 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
582 { KEY_CTL('D'), REQ_MOVE_PAGE_DOWN },
583 { ' ', REQ_MOVE_PAGE_DOWN },
584 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
585 { KEY_CTL('U'), REQ_MOVE_PAGE_UP },
586 { 'b', REQ_MOVE_PAGE_UP },
587 { '-', REQ_MOVE_PAGE_UP },
589 /* Scrolling */
590 { '|', REQ_SCROLL_FIRST_COL },
591 { KEY_LEFT, REQ_SCROLL_LEFT },
592 { KEY_RIGHT, REQ_SCROLL_RIGHT },
593 { KEY_IC, REQ_SCROLL_LINE_UP },
594 { KEY_CTL('Y'), REQ_SCROLL_LINE_UP },
595 { KEY_DC, REQ_SCROLL_LINE_DOWN },
596 { KEY_CTL('E'), REQ_SCROLL_LINE_DOWN },
597 { 'w', REQ_SCROLL_PAGE_UP },
598 { 's', REQ_SCROLL_PAGE_DOWN },
600 /* Searching */
601 { '/', REQ_SEARCH },
602 { '?', REQ_SEARCH_BACK },
603 { 'n', REQ_FIND_NEXT },
604 { 'N', REQ_FIND_PREV },
606 /* Misc */
607 { 'Q', REQ_QUIT },
608 { 'z', REQ_STOP_LOADING },
609 { 'v', REQ_SHOW_VERSION },
610 { 'r', REQ_SCREEN_REDRAW },
611 { KEY_CTL('L'), REQ_SCREEN_REDRAW },
612 { 'o', REQ_OPTIONS },
613 { '.', REQ_TOGGLE_LINENO },
614 { 'D', REQ_TOGGLE_DATE },
615 { 'A', REQ_TOGGLE_AUTHOR },
616 { 'g', REQ_TOGGLE_REV_GRAPH },
617 { '~', REQ_TOGGLE_GRAPHIC },
618 { 'F', REQ_TOGGLE_REFS },
619 { 'I', REQ_TOGGLE_SORT_ORDER },
620 { 'i', REQ_TOGGLE_SORT_FIELD },
621 { ':', REQ_PROMPT },
622 { 'u', REQ_STATUS_UPDATE },
623 { '!', REQ_STATUS_REVERT },
624 { 'M', REQ_STATUS_MERGE },
625 { '@', REQ_STAGE_NEXT },
626 { ',', REQ_PARENT },
627 { 'e', REQ_EDIT },
628 };
630 #define KEYMAP_INFO \
631 KEYMAP_(GENERIC), \
632 KEYMAP_(MAIN), \
633 KEYMAP_(DIFF), \
634 KEYMAP_(LOG), \
635 KEYMAP_(TREE), \
636 KEYMAP_(BLOB), \
637 KEYMAP_(BLAME), \
638 KEYMAP_(BRANCH), \
639 KEYMAP_(PAGER), \
640 KEYMAP_(HELP), \
641 KEYMAP_(STATUS), \
642 KEYMAP_(STAGE)
644 enum keymap {
645 #define KEYMAP_(name) KEYMAP_##name
646 KEYMAP_INFO
647 #undef KEYMAP_
648 };
650 static const struct enum_map keymap_table[] = {
651 #define KEYMAP_(name) ENUM_MAP(#name, KEYMAP_##name)
652 KEYMAP_INFO
653 #undef KEYMAP_
654 };
656 #define set_keymap(map, name) map_enum(map, keymap_table, name)
658 struct keybinding_table {
659 struct keybinding *data;
660 size_t size;
661 };
663 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
665 static void
666 add_keybinding(enum keymap keymap, enum request request, int key)
667 {
668 struct keybinding_table *table = &keybindings[keymap];
669 size_t i;
671 for (i = 0; i < keybindings[keymap].size; i++) {
672 if (keybindings[keymap].data[i].alias == key) {
673 keybindings[keymap].data[i].request = request;
674 return;
675 }
676 }
678 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
679 if (!table->data)
680 die("Failed to allocate keybinding");
681 table->data[table->size].alias = key;
682 table->data[table->size++].request = request;
684 if (request == REQ_NONE && keymap == KEYMAP_GENERIC) {
685 int i;
687 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
688 if (default_keybindings[i].alias == key)
689 default_keybindings[i].request = REQ_NONE;
690 }
691 }
693 /* Looks for a key binding first in the given map, then in the generic map, and
694 * lastly in the default keybindings. */
695 static enum request
696 get_keybinding(enum keymap keymap, int key)
697 {
698 size_t i;
700 for (i = 0; i < keybindings[keymap].size; i++)
701 if (keybindings[keymap].data[i].alias == key)
702 return keybindings[keymap].data[i].request;
704 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
705 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
706 return keybindings[KEYMAP_GENERIC].data[i].request;
708 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
709 if (default_keybindings[i].alias == key)
710 return default_keybindings[i].request;
712 return (enum request) key;
713 }
716 struct key {
717 const char *name;
718 int value;
719 };
721 static const struct key key_table[] = {
722 { "Enter", KEY_RETURN },
723 { "Space", ' ' },
724 { "Backspace", KEY_BACKSPACE },
725 { "Tab", KEY_TAB },
726 { "Escape", KEY_ESC },
727 { "Left", KEY_LEFT },
728 { "Right", KEY_RIGHT },
729 { "Up", KEY_UP },
730 { "Down", KEY_DOWN },
731 { "Insert", KEY_IC },
732 { "Delete", KEY_DC },
733 { "Hash", '#' },
734 { "Home", KEY_HOME },
735 { "End", KEY_END },
736 { "PageUp", KEY_PPAGE },
737 { "PageDown", KEY_NPAGE },
738 { "F1", KEY_F(1) },
739 { "F2", KEY_F(2) },
740 { "F3", KEY_F(3) },
741 { "F4", KEY_F(4) },
742 { "F5", KEY_F(5) },
743 { "F6", KEY_F(6) },
744 { "F7", KEY_F(7) },
745 { "F8", KEY_F(8) },
746 { "F9", KEY_F(9) },
747 { "F10", KEY_F(10) },
748 { "F11", KEY_F(11) },
749 { "F12", KEY_F(12) },
750 };
752 static int
753 get_key_value(const char *name)
754 {
755 int i;
757 for (i = 0; i < ARRAY_SIZE(key_table); i++)
758 if (!strcasecmp(key_table[i].name, name))
759 return key_table[i].value;
761 if (strlen(name) == 2 && name[0] == '^' && isprint(*name))
762 return (int)name[1] & 0x1f;
763 if (strlen(name) == 1 && isprint(*name))
764 return (int) *name;
765 return ERR;
766 }
768 static const char *
769 get_key_name(int key_value)
770 {
771 static char key_char[] = "'X'\0";
772 const char *seq = NULL;
773 int key;
775 for (key = 0; key < ARRAY_SIZE(key_table); key++)
776 if (key_table[key].value == key_value)
777 seq = key_table[key].name;
779 if (seq == NULL && key_value < 0x7f) {
780 char *s = key_char + 1;
782 if (key_value >= 0x20) {
783 *s++ = key_value;
784 } else {
785 *s++ = '^';
786 *s++ = 0x40 | (key_value & 0x1f);
787 }
788 *s++ = '\'';
789 *s++ = '\0';
790 seq = key_char;
791 }
793 return seq ? seq : "(no key)";
794 }
796 static bool
797 append_key(char *buf, size_t *pos, const struct keybinding *keybinding)
798 {
799 const char *sep = *pos > 0 ? ", " : "";
800 const char *keyname = get_key_name(keybinding->alias);
802 return string_nformat(buf, BUFSIZ, pos, "%s%s", sep, keyname);
803 }
805 static bool
806 append_keymap_request_keys(char *buf, size_t *pos, enum request request,
807 enum keymap keymap, bool all)
808 {
809 int i;
811 for (i = 0; i < keybindings[keymap].size; i++) {
812 if (keybindings[keymap].data[i].request == request) {
813 if (!append_key(buf, pos, &keybindings[keymap].data[i]))
814 return FALSE;
815 if (!all)
816 break;
817 }
818 }
820 return TRUE;
821 }
823 #define get_key(keymap, request) get_keys(keymap, request, FALSE)
825 static const char *
826 get_keys(enum keymap keymap, enum request request, bool all)
827 {
828 static char buf[BUFSIZ];
829 size_t pos = 0;
830 int i;
832 buf[pos] = 0;
834 if (!append_keymap_request_keys(buf, &pos, request, keymap, all))
835 return "Too many keybindings!";
836 if (pos > 0 && !all)
837 return buf;
839 if (keymap != KEYMAP_GENERIC) {
840 /* Only the generic keymap includes the default keybindings when
841 * listing all keys. */
842 if (all)
843 return buf;
845 if (!append_keymap_request_keys(buf, &pos, request, KEYMAP_GENERIC, all))
846 return "Too many keybindings!";
847 if (pos)
848 return buf;
849 }
851 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
852 if (default_keybindings[i].request == request) {
853 if (!append_key(buf, &pos, &default_keybindings[i]))
854 return "Too many keybindings!";
855 if (!all)
856 return buf;
857 }
858 }
860 return buf;
861 }
863 struct run_request {
864 enum keymap keymap;
865 int key;
866 const char **argv;
867 };
869 static struct run_request *run_request;
870 static size_t run_requests;
872 DEFINE_ALLOCATOR(realloc_run_requests, struct run_request, 8)
874 static enum request
875 add_run_request(enum keymap keymap, int key, const char **argv)
876 {
877 struct run_request *req;
879 if (!realloc_run_requests(&run_request, run_requests, 1))
880 return REQ_NONE;
882 req = &run_request[run_requests];
883 req->keymap = keymap;
884 req->key = key;
885 req->argv = NULL;
887 if (!argv_copy(&req->argv, argv))
888 return REQ_NONE;
890 return REQ_NONE + ++run_requests;
891 }
893 static struct run_request *
894 get_run_request(enum request request)
895 {
896 if (request <= REQ_NONE)
897 return NULL;
898 return &run_request[request - REQ_NONE - 1];
899 }
901 static void
902 add_builtin_run_requests(void)
903 {
904 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
905 const char *checkout[] = { "git", "checkout", "%(branch)", NULL };
906 const char *commit[] = { "git", "commit", NULL };
907 const char *gc[] = { "git", "gc", NULL };
908 struct run_request reqs[] = {
909 { KEYMAP_MAIN, 'C', cherry_pick },
910 { KEYMAP_STATUS, 'C', commit },
911 { KEYMAP_BRANCH, 'C', checkout },
912 { KEYMAP_GENERIC, 'G', gc },
913 };
914 int i;
916 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
917 enum request req = get_keybinding(reqs[i].keymap, reqs[i].key);
919 if (req != reqs[i].key)
920 continue;
921 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argv);
922 if (req != REQ_NONE)
923 add_keybinding(reqs[i].keymap, req, reqs[i].key);
924 }
925 }
927 /*
928 * User config file handling.
929 */
931 #define OPT_ERR_INFO \
932 OPT_ERR_(INTEGER_VALUE_OUT_OF_BOUND, "Integer value out of bound"), \
933 OPT_ERR_(INVALID_STEP_VALUE, "Invalid step value"), \
934 OPT_ERR_(NO_OPTION_VALUE, "No option value"), \
935 OPT_ERR_(NO_VALUE_ASSIGNED, "No value assigned"), \
936 OPT_ERR_(OBSOLETE_REQUEST_NAME, "Obsolete request name"), \
937 OPT_ERR_(OUT_OF_MEMORY, "Out of memory"), \
938 OPT_ERR_(TOO_MANY_OPTION_ARGUMENTS, "Too many option arguments"), \
939 OPT_ERR_(UNKNOWN_ATTRIBUTE, "Unknown attribute"), \
940 OPT_ERR_(UNKNOWN_COLOR, "Unknown color"), \
941 OPT_ERR_(UNKNOWN_COLOR_NAME, "Unknown color name"), \
942 OPT_ERR_(UNKNOWN_KEY, "Unknown key"), \
943 OPT_ERR_(UNKNOWN_KEY_MAP, "Unknown key map"), \
944 OPT_ERR_(UNKNOWN_OPTION_COMMAND, "Unknown option command"), \
945 OPT_ERR_(UNKNOWN_REQUEST_NAME, "Unknown request name"), \
946 OPT_ERR_(UNKNOWN_VARIABLE_NAME, "Unknown variable name"), \
947 OPT_ERR_(UNMATCHED_QUOTATION, "Unmatched quotation"), \
948 OPT_ERR_(WRONG_NUMBER_OF_ARGUMENTS, "Wrong number of arguments"),
950 enum option_code {
951 #define OPT_ERR_(name, msg) OPT_ERR_ ## name
952 OPT_ERR_INFO
953 #undef OPT_ERR_
954 OPT_OK
955 };
957 static const char *option_errors[] = {
958 #define OPT_ERR_(name, msg) msg
959 OPT_ERR_INFO
960 #undef OPT_ERR_
961 };
963 static const struct enum_map color_map[] = {
964 #define COLOR_MAP(name) ENUM_MAP(#name, COLOR_##name)
965 COLOR_MAP(DEFAULT),
966 COLOR_MAP(BLACK),
967 COLOR_MAP(BLUE),
968 COLOR_MAP(CYAN),
969 COLOR_MAP(GREEN),
970 COLOR_MAP(MAGENTA),
971 COLOR_MAP(RED),
972 COLOR_MAP(WHITE),
973 COLOR_MAP(YELLOW),
974 };
976 static const struct enum_map attr_map[] = {
977 #define ATTR_MAP(name) ENUM_MAP(#name, A_##name)
978 ATTR_MAP(NORMAL),
979 ATTR_MAP(BLINK),
980 ATTR_MAP(BOLD),
981 ATTR_MAP(DIM),
982 ATTR_MAP(REVERSE),
983 ATTR_MAP(STANDOUT),
984 ATTR_MAP(UNDERLINE),
985 };
987 #define set_attribute(attr, name) map_enum(attr, attr_map, name)
989 static enum option_code
990 parse_step(double *opt, const char *arg)
991 {
992 *opt = atoi(arg);
993 if (!strchr(arg, '%'))
994 return OPT_OK;
996 /* "Shift down" so 100% and 1 does not conflict. */
997 *opt = (*opt - 1) / 100;
998 if (*opt >= 1.0) {
999 *opt = 0.99;
1000 return OPT_ERR_INVALID_STEP_VALUE;
1001 }
1002 if (*opt < 0.0) {
1003 *opt = 1;
1004 return OPT_ERR_INVALID_STEP_VALUE;
1005 }
1006 return OPT_OK;
1007 }
1009 static enum option_code
1010 parse_int(int *opt, const char *arg, int min, int max)
1011 {
1012 int value = atoi(arg);
1014 if (min <= value && value <= max) {
1015 *opt = value;
1016 return OPT_OK;
1017 }
1019 return OPT_ERR_INTEGER_VALUE_OUT_OF_BOUND;
1020 }
1022 static bool
1023 set_color(int *color, const char *name)
1024 {
1025 if (map_enum(color, color_map, name))
1026 return TRUE;
1027 if (!prefixcmp(name, "color"))
1028 return parse_int(color, name + 5, 0, 255) == OK;
1029 return FALSE;
1030 }
1032 /* Wants: object fgcolor bgcolor [attribute] */
1033 static enum option_code
1034 option_color_command(int argc, const char *argv[])
1035 {
1036 struct line_info *info;
1038 if (argc < 3)
1039 return OPT_ERR_WRONG_NUMBER_OF_ARGUMENTS;
1041 info = get_line_info(argv[0]);
1042 if (!info) {
1043 static const struct enum_map obsolete[] = {
1044 ENUM_MAP("main-delim", LINE_DELIMITER),
1045 ENUM_MAP("main-date", LINE_DATE),
1046 ENUM_MAP("main-author", LINE_AUTHOR),
1047 };
1048 int index;
1050 if (!map_enum(&index, obsolete, argv[0]))
1051 return OPT_ERR_UNKNOWN_COLOR_NAME;
1052 info = &line_info[index];
1053 }
1055 if (!set_color(&info->fg, argv[1]) ||
1056 !set_color(&info->bg, argv[2]))
1057 return OPT_ERR_UNKNOWN_COLOR;
1059 info->attr = 0;
1060 while (argc-- > 3) {
1061 int attr;
1063 if (!set_attribute(&attr, argv[argc]))
1064 return OPT_ERR_UNKNOWN_ATTRIBUTE;
1065 info->attr |= attr;
1066 }
1068 return OPT_OK;
1069 }
1071 static enum option_code
1072 parse_bool(bool *opt, const char *arg)
1073 {
1074 *opt = (!strcmp(arg, "1") || !strcmp(arg, "true") || !strcmp(arg, "yes"))
1075 ? TRUE : FALSE;
1076 return OPT_OK;
1077 }
1079 static enum option_code
1080 parse_enum_do(unsigned int *opt, const char *arg,
1081 const struct enum_map *map, size_t map_size)
1082 {
1083 bool is_true;
1085 assert(map_size > 1);
1087 if (map_enum_do(map, map_size, (int *) opt, arg))
1088 return OPT_OK;
1090 parse_bool(&is_true, arg);
1091 *opt = is_true ? map[1].value : map[0].value;
1092 return OPT_OK;
1093 }
1095 #define parse_enum(opt, arg, map) \
1096 parse_enum_do(opt, arg, map, ARRAY_SIZE(map))
1098 static enum option_code
1099 parse_string(char *opt, const char *arg, size_t optsize)
1100 {
1101 int arglen = strlen(arg);
1103 switch (arg[0]) {
1104 case '\"':
1105 case '\'':
1106 if (arglen == 1 || arg[arglen - 1] != arg[0])
1107 return OPT_ERR_UNMATCHED_QUOTATION;
1108 arg += 1; arglen -= 2;
1109 default:
1110 string_ncopy_do(opt, optsize, arg, arglen);
1111 return OPT_OK;
1112 }
1113 }
1115 static enum option_code
1116 parse_args(const char ***args, const char *argv[])
1117 {
1118 if (*args == NULL && !argv_copy(args, argv))
1119 return OPT_ERR_OUT_OF_MEMORY;
1120 return OPT_OK;
1121 }
1123 /* Wants: name = value */
1124 static enum option_code
1125 option_set_command(int argc, const char *argv[])
1126 {
1127 if (argc < 3)
1128 return OPT_ERR_WRONG_NUMBER_OF_ARGUMENTS;
1130 if (strcmp(argv[1], "="))
1131 return OPT_ERR_NO_VALUE_ASSIGNED;
1133 if (!strcmp(argv[0], "blame-options"))
1134 return parse_args(&opt_blame_argv, argv + 2);
1136 if (argc != 3)
1137 return OPT_ERR_WRONG_NUMBER_OF_ARGUMENTS;
1139 if (!strcmp(argv[0], "show-author"))
1140 return parse_enum(&opt_author, argv[2], author_map);
1142 if (!strcmp(argv[0], "show-date"))
1143 return parse_enum(&opt_date, argv[2], date_map);
1145 if (!strcmp(argv[0], "show-rev-graph"))
1146 return parse_bool(&opt_rev_graph, argv[2]);
1148 if (!strcmp(argv[0], "show-refs"))
1149 return parse_bool(&opt_show_refs, argv[2]);
1151 if (!strcmp(argv[0], "show-line-numbers"))
1152 return parse_bool(&opt_line_number, argv[2]);
1154 if (!strcmp(argv[0], "line-graphics"))
1155 return parse_enum(&opt_line_graphics, argv[2], graphic_map);
1157 if (!strcmp(argv[0], "line-number-interval"))
1158 return parse_int(&opt_num_interval, argv[2], 1, 1024);
1160 if (!strcmp(argv[0], "author-width"))
1161 return parse_int(&opt_author_cols, argv[2], 0, 1024);
1163 if (!strcmp(argv[0], "horizontal-scroll"))
1164 return parse_step(&opt_hscroll, argv[2]);
1166 if (!strcmp(argv[0], "split-view-height"))
1167 return parse_step(&opt_scale_split_view, argv[2]);
1169 if (!strcmp(argv[0], "tab-size"))
1170 return parse_int(&opt_tab_size, argv[2], 1, 1024);
1172 if (!strcmp(argv[0], "commit-encoding"))
1173 return parse_string(opt_encoding, argv[2], sizeof(opt_encoding));
1175 if (!strcmp(argv[0], "status-untracked-dirs"))
1176 return parse_bool(&opt_untracked_dirs_content, argv[2]);
1178 return OPT_ERR_UNKNOWN_VARIABLE_NAME;
1179 }
1181 /* Wants: mode request key */
1182 static enum option_code
1183 option_bind_command(int argc, const char *argv[])
1184 {
1185 enum request request;
1186 int keymap = -1;
1187 int key;
1189 if (argc < 3)
1190 return OPT_ERR_WRONG_NUMBER_OF_ARGUMENTS;
1192 if (!set_keymap(&keymap, argv[0]))
1193 return OPT_ERR_UNKNOWN_KEY_MAP;
1195 key = get_key_value(argv[1]);
1196 if (key == ERR)
1197 return OPT_ERR_UNKNOWN_KEY;
1199 request = get_request(argv[2]);
1200 if (request == REQ_UNKNOWN) {
1201 static const struct enum_map obsolete[] = {
1202 ENUM_MAP("cherry-pick", REQ_NONE),
1203 ENUM_MAP("screen-resize", REQ_NONE),
1204 ENUM_MAP("tree-parent", REQ_PARENT),
1205 };
1206 int alias;
1208 if (map_enum(&alias, obsolete, argv[2])) {
1209 if (alias != REQ_NONE)
1210 add_keybinding(keymap, alias, key);
1211 return OPT_ERR_OBSOLETE_REQUEST_NAME;
1212 }
1213 }
1214 if (request == REQ_UNKNOWN && *argv[2]++ == '!')
1215 request = add_run_request(keymap, key, argv + 2);
1216 if (request == REQ_UNKNOWN)
1217 return OPT_ERR_UNKNOWN_REQUEST_NAME;
1219 add_keybinding(keymap, request, key);
1221 return OPT_OK;
1222 }
1224 static enum option_code
1225 set_option(const char *opt, char *value)
1226 {
1227 const char *argv[SIZEOF_ARG];
1228 int argc = 0;
1230 if (!argv_from_string(argv, &argc, value))
1231 return OPT_ERR_TOO_MANY_OPTION_ARGUMENTS;
1233 if (!strcmp(opt, "color"))
1234 return option_color_command(argc, argv);
1236 if (!strcmp(opt, "set"))
1237 return option_set_command(argc, argv);
1239 if (!strcmp(opt, "bind"))
1240 return option_bind_command(argc, argv);
1242 return OPT_ERR_UNKNOWN_OPTION_COMMAND;
1243 }
1245 struct config_state {
1246 int lineno;
1247 bool errors;
1248 };
1250 static int
1251 read_option(char *opt, size_t optlen, char *value, size_t valuelen, void *data)
1252 {
1253 struct config_state *config = data;
1254 enum option_code status = OPT_ERR_NO_OPTION_VALUE;
1256 config->lineno++;
1258 /* Check for comment markers, since read_properties() will
1259 * only ensure opt and value are split at first " \t". */
1260 optlen = strcspn(opt, "#");
1261 if (optlen == 0)
1262 return OK;
1264 if (opt[optlen] == 0) {
1265 /* Look for comment endings in the value. */
1266 size_t len = strcspn(value, "#");
1268 if (len < valuelen) {
1269 valuelen = len;
1270 value[valuelen] = 0;
1271 }
1273 status = set_option(opt, value);
1274 }
1276 if (status != OPT_OK) {
1277 warn("Error on line %d, near '%.*s': %s",
1278 config->lineno, (int) optlen, opt, option_errors[status]);
1279 config->errors = TRUE;
1280 }
1282 /* Always keep going if errors are encountered. */
1283 return OK;
1284 }
1286 static void
1287 load_option_file(const char *path)
1288 {
1289 struct config_state config = { 0, FALSE };
1290 struct io io;
1292 /* It's OK that the file doesn't exist. */
1293 if (!io_open(&io, "%s", path))
1294 return;
1296 if (io_load(&io, " \t", read_option, &config) == ERR ||
1297 config.errors == TRUE)
1298 warn("Errors while loading %s.", path);
1299 }
1301 static int
1302 load_options(void)
1303 {
1304 const char *home = getenv("HOME");
1305 const char *tigrc_user = getenv("TIGRC_USER");
1306 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1307 const char *tig_diff_opts = getenv("TIG_DIFF_OPTS");
1308 char buf[SIZEOF_STR];
1310 if (!tigrc_system)
1311 tigrc_system = SYSCONFDIR "/tigrc";
1312 load_option_file(tigrc_system);
1314 if (!tigrc_user) {
1315 if (!home || !string_format(buf, "%s/.tigrc", home))
1316 return ERR;
1317 tigrc_user = buf;
1318 }
1319 load_option_file(tigrc_user);
1321 /* Add _after_ loading config files to avoid adding run requests
1322 * that conflict with keybindings. */
1323 add_builtin_run_requests();
1325 if (!opt_diff_argv && tig_diff_opts && *tig_diff_opts) {
1326 static const char *diff_opts[SIZEOF_ARG] = { NULL };
1327 int argc = 0;
1329 if (!string_format(buf, "%s", tig_diff_opts) ||
1330 !argv_from_string(diff_opts, &argc, buf))
1331 die("TIG_DIFF_OPTS contains too many arguments");
1332 else if (!argv_copy(&opt_diff_argv, diff_opts))
1333 die("Failed to format TIG_DIFF_OPTS arguments");
1334 }
1336 return OK;
1337 }
1340 /*
1341 * The viewer
1342 */
1344 struct view;
1345 struct view_ops;
1347 /* The display array of active views and the index of the current view. */
1348 static struct view *display[2];
1349 static WINDOW *display_win[2];
1350 static WINDOW *display_title[2];
1351 static unsigned int current_view;
1353 #define foreach_displayed_view(view, i) \
1354 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1356 #define displayed_views() (display[1] != NULL ? 2 : 1)
1358 /* Current head and commit ID */
1359 static char ref_blob[SIZEOF_REF] = "";
1360 static char ref_commit[SIZEOF_REF] = "HEAD";
1361 static char ref_head[SIZEOF_REF] = "HEAD";
1362 static char ref_branch[SIZEOF_REF] = "";
1364 enum view_type {
1365 VIEW_MAIN,
1366 VIEW_DIFF,
1367 VIEW_LOG,
1368 VIEW_TREE,
1369 VIEW_BLOB,
1370 VIEW_BLAME,
1371 VIEW_BRANCH,
1372 VIEW_HELP,
1373 VIEW_PAGER,
1374 VIEW_STATUS,
1375 VIEW_STAGE,
1376 };
1378 struct view {
1379 enum view_type type; /* View type */
1380 const char *name; /* View name */
1381 const char *id; /* Points to either of ref_{head,commit,blob} */
1383 struct view_ops *ops; /* View operations */
1385 enum keymap keymap; /* What keymap does this view have */
1386 bool git_dir; /* Whether the view requires a git directory. */
1388 char ref[SIZEOF_REF]; /* Hovered commit reference */
1389 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1391 int height, width; /* The width and height of the main window */
1392 WINDOW *win; /* The main window */
1394 /* Navigation */
1395 unsigned long offset; /* Offset of the window top */
1396 unsigned long yoffset; /* Offset from the window side. */
1397 unsigned long lineno; /* Current line number */
1398 unsigned long p_offset; /* Previous offset of the window top */
1399 unsigned long p_yoffset;/* Previous offset from the window side */
1400 unsigned long p_lineno; /* Previous current line number */
1401 bool p_restore; /* Should the previous position be restored. */
1403 /* Searching */
1404 char grep[SIZEOF_STR]; /* Search string */
1405 regex_t *regex; /* Pre-compiled regexp */
1407 /* If non-NULL, points to the view that opened this view. If this view
1408 * is closed tig will switch back to the parent view. */
1409 struct view *parent;
1410 struct view *prev;
1412 /* Buffering */
1413 size_t lines; /* Total number of lines */
1414 struct line *line; /* Line index */
1415 unsigned int digits; /* Number of digits in the lines member. */
1417 /* Drawing */
1418 struct line *curline; /* Line currently being drawn. */
1419 enum line_type curtype; /* Attribute currently used for drawing. */
1420 unsigned long col; /* Column when drawing. */
1421 bool has_scrolled; /* View was scrolled. */
1423 /* Loading */
1424 const char **argv; /* Shell command arguments. */
1425 const char *dir; /* Directory from which to execute. */
1426 struct io io;
1427 struct io *pipe;
1428 time_t start_time;
1429 time_t update_secs;
1430 };
1432 enum open_flags {
1433 OPEN_DEFAULT = 0, /* Use default view switching. */
1434 OPEN_SPLIT = 1, /* Split current view. */
1435 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
1436 OPEN_REFRESH = 16, /* Refresh view using previous command. */
1437 OPEN_PREPARED = 32, /* Open already prepared command. */
1438 };
1440 struct view_ops {
1441 /* What type of content being displayed. Used in the title bar. */
1442 const char *type;
1443 /* Open and reads in all view content. */
1444 bool (*open)(struct view *view, enum open_flags flags);
1445 /* Read one line; updates view->line. */
1446 bool (*read)(struct view *view, char *data);
1447 /* Draw one line; @lineno must be < view->height. */
1448 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1449 /* Depending on view handle a special requests. */
1450 enum request (*request)(struct view *view, enum request request, struct line *line);
1451 /* Search for regexp in a line. */
1452 bool (*grep)(struct view *view, struct line *line);
1453 /* Select line */
1454 void (*select)(struct view *view, struct line *line);
1455 };
1457 static struct view_ops blame_ops;
1458 static struct view_ops blob_ops;
1459 static struct view_ops diff_ops;
1460 static struct view_ops help_ops;
1461 static struct view_ops log_ops;
1462 static struct view_ops main_ops;
1463 static struct view_ops pager_ops;
1464 static struct view_ops stage_ops;
1465 static struct view_ops status_ops;
1466 static struct view_ops tree_ops;
1467 static struct view_ops branch_ops;
1469 #define VIEW_STR(type, name, ref, ops, map, git) \
1470 { type, name, ref, ops, map, git }
1472 #define VIEW_(id, name, ops, git, ref) \
1473 VIEW_STR(VIEW_##id, name, ref, ops, KEYMAP_##id, git)
1475 static struct view views[] = {
1476 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1477 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1478 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1479 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1480 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1481 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1482 VIEW_(BRANCH, "branch", &branch_ops, TRUE, ref_head),
1483 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1484 VIEW_(PAGER, "pager", &pager_ops, FALSE, ""),
1485 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1486 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1487 };
1489 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1491 #define foreach_view(view, i) \
1492 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1494 #define view_is_displayed(view) \
1495 (view == display[0] || view == display[1])
1497 static enum request
1498 view_request(struct view *view, enum request request)
1499 {
1500 if (!view || !view->lines)
1501 return request;
1502 return view->ops->request(view, request, &view->line[view->lineno]);
1503 }
1506 /*
1507 * View drawing.
1508 */
1510 static inline void
1511 set_view_attr(struct view *view, enum line_type type)
1512 {
1513 if (!view->curline->selected && view->curtype != type) {
1514 (void) wattrset(view->win, get_line_attr(type));
1515 wchgat(view->win, -1, 0, type, NULL);
1516 view->curtype = type;
1517 }
1518 }
1520 #define VIEW_MAX_LEN(view) ((view)->width + (view)->yoffset - (view)->col)
1522 static bool
1523 draw_chars(struct view *view, enum line_type type, const char *string,
1524 int max_len, bool use_tilde)
1525 {
1526 static char out_buffer[BUFSIZ * 2];
1527 int len = 0;
1528 int col = 0;
1529 int trimmed = FALSE;
1530 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1532 if (max_len <= 0)
1533 return VIEW_MAX_LEN(view) <= 0;
1535 len = utf8_length(&string, skip, &col, max_len, &trimmed, use_tilde, opt_tab_size);
1537 set_view_attr(view, type);
1538 if (len > 0) {
1539 if (opt_iconv_out != ICONV_NONE) {
1540 ICONV_CONST char *inbuf = (ICONV_CONST char *) string;
1541 size_t inlen = len + 1;
1543 char *outbuf = out_buffer;
1544 size_t outlen = sizeof(out_buffer);
1546 size_t ret;
1548 ret = iconv(opt_iconv_out, &inbuf, &inlen, &outbuf, &outlen);
1549 if (ret != (size_t) -1) {
1550 string = out_buffer;
1551 len = sizeof(out_buffer) - outlen;
1552 }
1553 }
1555 waddnstr(view->win, string, len);
1557 if (trimmed && use_tilde) {
1558 set_view_attr(view, LINE_DELIMITER);
1559 waddch(view->win, '~');
1560 col++;
1561 }
1562 }
1564 view->col += col;
1565 return VIEW_MAX_LEN(view) <= 0;
1566 }
1568 static bool
1569 draw_space(struct view *view, enum line_type type, int max, int spaces)
1570 {
1571 static char space[] = " ";
1573 spaces = MIN(max, spaces);
1575 while (spaces > 0) {
1576 int len = MIN(spaces, sizeof(space) - 1);
1578 if (draw_chars(view, type, space, len, FALSE))
1579 return TRUE;
1580 spaces -= len;
1581 }
1583 return VIEW_MAX_LEN(view) <= 0;
1584 }
1586 static bool
1587 draw_text(struct view *view, enum line_type type, const char *string)
1588 {
1589 char text[SIZEOF_STR];
1591 do {
1592 size_t pos = string_expand(text, sizeof(text), string, opt_tab_size);
1594 if (draw_chars(view, type, text, VIEW_MAX_LEN(view), TRUE))
1595 return TRUE;
1596 string += pos;
1597 } while (*string);
1599 return VIEW_MAX_LEN(view) <= 0;
1600 }
1602 static bool
1603 draw_graphic(struct view *view, enum line_type type, const chtype graphic[], size_t size, bool separator)
1604 {
1605 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1606 int max = VIEW_MAX_LEN(view);
1607 int i;
1609 if (max < size)
1610 size = max;
1612 set_view_attr(view, type);
1613 /* Using waddch() instead of waddnstr() ensures that
1614 * they'll be rendered correctly for the cursor line. */
1615 for (i = skip; i < size; i++)
1616 waddch(view->win, graphic[i]);
1618 view->col += size;
1619 if (separator) {
1620 if (size < max && skip <= size)
1621 waddch(view->win, ' ');
1622 view->col++;
1623 }
1625 return VIEW_MAX_LEN(view) <= 0;
1626 }
1628 static bool
1629 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1630 {
1631 int max = MIN(VIEW_MAX_LEN(view), len);
1632 int col = view->col;
1634 if (!text)
1635 return draw_space(view, type, max, max);
1637 return draw_chars(view, type, text, max - 1, trim)
1638 || draw_space(view, LINE_DEFAULT, max - (view->col - col), max);
1639 }
1641 static bool
1642 draw_date(struct view *view, struct time *time)
1643 {
1644 const char *date = mkdate(time, opt_date);
1645 int cols = opt_date == DATE_SHORT ? DATE_SHORT_COLS : DATE_COLS;
1647 return draw_field(view, LINE_DATE, date, cols, FALSE);
1648 }
1650 static bool
1651 draw_author(struct view *view, const char *author)
1652 {
1653 bool trim = opt_author_cols == 0 || opt_author_cols > 5;
1654 bool abbreviate = opt_author == AUTHOR_ABBREVIATED || !trim;
1656 if (abbreviate && author)
1657 author = get_author_initials(author);
1659 return draw_field(view, LINE_AUTHOR, author, opt_author_cols, trim);
1660 }
1662 static bool
1663 draw_mode(struct view *view, mode_t mode)
1664 {
1665 const char *str;
1667 if (S_ISDIR(mode))
1668 str = "drwxr-xr-x";
1669 else if (S_ISLNK(mode))
1670 str = "lrwxrwxrwx";
1671 else if (S_ISGITLINK(mode))
1672 str = "m---------";
1673 else if (S_ISREG(mode) && mode & S_IXUSR)
1674 str = "-rwxr-xr-x";
1675 else if (S_ISREG(mode))
1676 str = "-rw-r--r--";
1677 else
1678 str = "----------";
1680 return draw_field(view, LINE_MODE, str, STRING_SIZE("-rw-r--r-- "), FALSE);
1681 }
1683 static bool
1684 draw_lineno(struct view *view, unsigned int lineno)
1685 {
1686 char number[10];
1687 int digits3 = view->digits < 3 ? 3 : view->digits;
1688 int max = MIN(VIEW_MAX_LEN(view), digits3);
1689 char *text = NULL;
1690 chtype separator = opt_line_graphics ? ACS_VLINE : '|';
1692 lineno += view->offset + 1;
1693 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1694 static char fmt[] = "%1ld";
1696 fmt[1] = '0' + (view->digits <= 9 ? digits3 : 1);
1697 if (string_format(number, fmt, lineno))
1698 text = number;
1699 }
1700 if (text)
1701 draw_chars(view, LINE_LINE_NUMBER, text, max, TRUE);
1702 else
1703 draw_space(view, LINE_LINE_NUMBER, max, digits3);
1704 return draw_graphic(view, LINE_DEFAULT, &separator, 1, TRUE);
1705 }
1707 static bool
1708 draw_view_line(struct view *view, unsigned int lineno)
1709 {
1710 struct line *line;
1711 bool selected = (view->offset + lineno == view->lineno);
1713 assert(view_is_displayed(view));
1715 if (view->offset + lineno >= view->lines)
1716 return FALSE;
1718 line = &view->line[view->offset + lineno];
1720 wmove(view->win, lineno, 0);
1721 if (line->cleareol)
1722 wclrtoeol(view->win);
1723 view->col = 0;
1724 view->curline = line;
1725 view->curtype = LINE_NONE;
1726 line->selected = FALSE;
1727 line->dirty = line->cleareol = 0;
1729 if (selected) {
1730 set_view_attr(view, LINE_CURSOR);
1731 line->selected = TRUE;
1732 view->ops->select(view, line);
1733 }
1735 return view->ops->draw(view, line, lineno);
1736 }
1738 static void
1739 redraw_view_dirty(struct view *view)
1740 {
1741 bool dirty = FALSE;
1742 int lineno;
1744 for (lineno = 0; lineno < view->height; lineno++) {
1745 if (view->offset + lineno >= view->lines)
1746 break;
1747 if (!view->line[view->offset + lineno].dirty)
1748 continue;
1749 dirty = TRUE;
1750 if (!draw_view_line(view, lineno))
1751 break;
1752 }
1754 if (!dirty)
1755 return;
1756 wnoutrefresh(view->win);
1757 }
1759 static void
1760 redraw_view_from(struct view *view, int lineno)
1761 {
1762 assert(0 <= lineno && lineno < view->height);
1764 for (; lineno < view->height; lineno++) {
1765 if (!draw_view_line(view, lineno))
1766 break;
1767 }
1769 wnoutrefresh(view->win);
1770 }
1772 static void
1773 redraw_view(struct view *view)
1774 {
1775 werase(view->win);
1776 redraw_view_from(view, 0);
1777 }
1780 static void
1781 update_view_title(struct view *view)
1782 {
1783 char buf[SIZEOF_STR];
1784 char state[SIZEOF_STR];
1785 size_t bufpos = 0, statelen = 0;
1786 WINDOW *window = display[0] == view ? display_title[0] : display_title[1];
1788 assert(view_is_displayed(view));
1790 if (view->type != VIEW_STATUS && view->lines) {
1791 unsigned int view_lines = view->offset + view->height;
1792 unsigned int lines = view->lines
1793 ? MIN(view_lines, view->lines) * 100 / view->lines
1794 : 0;
1796 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
1797 view->ops->type,
1798 view->lineno + 1,
1799 view->lines,
1800 lines);
1802 }
1804 if (view->pipe) {
1805 time_t secs = time(NULL) - view->start_time;
1807 /* Three git seconds are a long time ... */
1808 if (secs > 2)
1809 string_format_from(state, &statelen, " loading %lds", secs);
1810 }
1812 string_format_from(buf, &bufpos, "[%s]", view->name);
1813 if (*view->ref && bufpos < view->width) {
1814 size_t refsize = strlen(view->ref);
1815 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
1817 if (minsize < view->width)
1818 refsize = view->width - minsize + 7;
1819 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
1820 }
1822 if (statelen && bufpos < view->width) {
1823 string_format_from(buf, &bufpos, "%s", state);
1824 }
1826 if (view == display[current_view])
1827 wbkgdset(window, get_line_attr(LINE_TITLE_FOCUS));
1828 else
1829 wbkgdset(window, get_line_attr(LINE_TITLE_BLUR));
1831 mvwaddnstr(window, 0, 0, buf, bufpos);
1832 wclrtoeol(window);
1833 wnoutrefresh(window);
1834 }
1836 static int
1837 apply_step(double step, int value)
1838 {
1839 if (step >= 1)
1840 return (int) step;
1841 value *= step + 0.01;
1842 return value ? value : 1;
1843 }
1845 static void
1846 resize_display(void)
1847 {
1848 int offset, i;
1849 struct view *base = display[0];
1850 struct view *view = display[1] ? display[1] : display[0];
1852 /* Setup window dimensions */
1854 getmaxyx(stdscr, base->height, base->width);
1856 /* Make room for the status window. */
1857 base->height -= 1;
1859 if (view != base) {
1860 /* Horizontal split. */
1861 view->width = base->width;
1862 view->height = apply_step(opt_scale_split_view, base->height);
1863 view->height = MAX(view->height, MIN_VIEW_HEIGHT);
1864 view->height = MIN(view->height, base->height - MIN_VIEW_HEIGHT);
1865 base->height -= view->height;
1867 /* Make room for the title bar. */
1868 view->height -= 1;
1869 }
1871 /* Make room for the title bar. */
1872 base->height -= 1;
1874 offset = 0;
1876 foreach_displayed_view (view, i) {
1877 if (!display_win[i]) {
1878 display_win[i] = newwin(view->height, view->width, offset, 0);
1879 if (!display_win[i])
1880 die("Failed to create %s view", view->name);
1882 scrollok(display_win[i], FALSE);
1884 display_title[i] = newwin(1, view->width, offset + view->height, 0);
1885 if (!display_title[i])
1886 die("Failed to create title window");
1888 } else {
1889 wresize(display_win[i], view->height, view->width);
1890 mvwin(display_win[i], offset, 0);
1891 mvwin(display_title[i], offset + view->height, 0);
1892 }
1894 view->win = display_win[i];
1896 offset += view->height + 1;
1897 }
1898 }
1900 static void
1901 redraw_display(bool clear)
1902 {
1903 struct view *view;
1904 int i;
1906 foreach_displayed_view (view, i) {
1907 if (clear)
1908 wclear(view->win);
1909 redraw_view(view);
1910 update_view_title(view);
1911 }
1912 }
1915 /*
1916 * Option management
1917 */
1919 #define TOGGLE_MENU \
1920 TOGGLE_(LINENO, '.', "line numbers", &opt_line_number, NULL) \
1921 TOGGLE_(DATE, 'D', "dates", &opt_date, date_map) \
1922 TOGGLE_(AUTHOR, 'A', "author names", &opt_author, author_map) \
1923 TOGGLE_(GRAPHIC, '~', "graphics", &opt_line_graphics, graphic_map) \
1924 TOGGLE_(REV_GRAPH, 'g', "revision graph", &opt_rev_graph, NULL) \
1925 TOGGLE_(REFS, 'F', "reference display", &opt_show_refs, NULL)
1927 static void
1928 toggle_option(enum request request)
1929 {
1930 const struct {
1931 enum request request;
1932 const struct enum_map *map;
1933 size_t map_size;
1934 } data[] = {
1935 #define TOGGLE_(id, key, help, value, map) { REQ_TOGGLE_ ## id, map, ARRAY_SIZE(map) },
1936 TOGGLE_MENU
1937 #undef TOGGLE_
1938 };
1939 const struct menu_item menu[] = {
1940 #define TOGGLE_(id, key, help, value, map) { key, help, value },
1941 TOGGLE_MENU
1942 #undef TOGGLE_
1943 { 0 }
1944 };
1945 int i = 0;
1947 if (request == REQ_OPTIONS) {
1948 if (!prompt_menu("Toggle option", menu, &i))
1949 return;
1950 } else {
1951 while (i < ARRAY_SIZE(data) && data[i].request != request)
1952 i++;
1953 if (i >= ARRAY_SIZE(data))
1954 die("Invalid request (%d)", request);
1955 }
1957 if (data[i].map != NULL) {
1958 unsigned int *opt = menu[i].data;
1960 *opt = (*opt + 1) % data[i].map_size;
1961 redraw_display(FALSE);
1962 report("Displaying %s %s", enum_name(data[i].map[*opt]), menu[i].text);
1964 } else {
1965 bool *option = menu[i].data;
1967 *option = !*option;
1968 redraw_display(FALSE);
1969 report("%sabling %s", *option ? "En" : "Dis", menu[i].text);
1970 }
1971 }
1973 static void
1974 maximize_view(struct view *view)
1975 {
1976 memset(display, 0, sizeof(display));
1977 current_view = 0;
1978 display[current_view] = view;
1979 resize_display();
1980 redraw_display(FALSE);
1981 report("");
1982 }
1985 /*
1986 * Navigation
1987 */
1989 static bool
1990 goto_view_line(struct view *view, unsigned long offset, unsigned long lineno)
1991 {
1992 if (lineno >= view->lines)
1993 lineno = view->lines > 0 ? view->lines - 1 : 0;
1995 if (offset > lineno || offset + view->height <= lineno) {
1996 unsigned long half = view->height / 2;
1998 if (lineno > half)
1999 offset = lineno - half;
2000 else
2001 offset = 0;
2002 }
2004 if (offset != view->offset || lineno != view->lineno) {
2005 view->offset = offset;
2006 view->lineno = lineno;
2007 return TRUE;
2008 }
2010 return FALSE;
2011 }
2013 /* Scrolling backend */
2014 static void
2015 do_scroll_view(struct view *view, int lines)
2016 {
2017 bool redraw_current_line = FALSE;
2019 /* The rendering expects the new offset. */
2020 view->offset += lines;
2022 assert(0 <= view->offset && view->offset < view->lines);
2023 assert(lines);
2025 /* Move current line into the view. */
2026 if (view->lineno < view->offset) {
2027 view->lineno = view->offset;
2028 redraw_current_line = TRUE;
2029 } else if (view->lineno >= view->offset + view->height) {
2030 view->lineno = view->offset + view->height - 1;
2031 redraw_current_line = TRUE;
2032 }
2034 assert(view->offset <= view->lineno && view->lineno < view->lines);
2036 /* Redraw the whole screen if scrolling is pointless. */
2037 if (view->height < ABS(lines)) {
2038 redraw_view(view);
2040 } else {
2041 int line = lines > 0 ? view->height - lines : 0;
2042 int end = line + ABS(lines);
2044 scrollok(view->win, TRUE);
2045 wscrl(view->win, lines);
2046 scrollok(view->win, FALSE);
2048 while (line < end && draw_view_line(view, line))
2049 line++;
2051 if (redraw_current_line)
2052 draw_view_line(view, view->lineno - view->offset);
2053 wnoutrefresh(view->win);
2054 }
2056 view->has_scrolled = TRUE;
2057 report("");
2058 }
2060 /* Scroll frontend */
2061 static void
2062 scroll_view(struct view *view, enum request request)
2063 {
2064 int lines = 1;
2066 assert(view_is_displayed(view));
2068 switch (request) {
2069 case REQ_SCROLL_FIRST_COL:
2070 view->yoffset = 0;
2071 redraw_view_from(view, 0);
2072 report("");
2073 return;
2074 case REQ_SCROLL_LEFT:
2075 if (view->yoffset == 0) {
2076 report("Cannot scroll beyond the first column");
2077 return;
2078 }
2079 if (view->yoffset <= apply_step(opt_hscroll, view->width))
2080 view->yoffset = 0;
2081 else
2082 view->yoffset -= apply_step(opt_hscroll, view->width);
2083 redraw_view_from(view, 0);
2084 report("");
2085 return;
2086 case REQ_SCROLL_RIGHT:
2087 view->yoffset += apply_step(opt_hscroll, view->width);
2088 redraw_view(view);
2089 report("");
2090 return;
2091 case REQ_SCROLL_PAGE_DOWN:
2092 lines = view->height;
2093 case REQ_SCROLL_LINE_DOWN:
2094 if (view->offset + lines > view->lines)
2095 lines = view->lines - view->offset;
2097 if (lines == 0 || view->offset + view->height >= view->lines) {
2098 report("Cannot scroll beyond the last line");
2099 return;
2100 }
2101 break;
2103 case REQ_SCROLL_PAGE_UP:
2104 lines = view->height;
2105 case REQ_SCROLL_LINE_UP:
2106 if (lines > view->offset)
2107 lines = view->offset;
2109 if (lines == 0) {
2110 report("Cannot scroll beyond the first line");
2111 return;
2112 }
2114 lines = -lines;
2115 break;
2117 default:
2118 die("request %d not handled in switch", request);
2119 }
2121 do_scroll_view(view, lines);
2122 }
2124 /* Cursor moving */
2125 static void
2126 move_view(struct view *view, enum request request)
2127 {
2128 int scroll_steps = 0;
2129 int steps;
2131 switch (request) {
2132 case REQ_MOVE_FIRST_LINE:
2133 steps = -view->lineno;
2134 break;
2136 case REQ_MOVE_LAST_LINE:
2137 steps = view->lines - view->lineno - 1;
2138 break;
2140 case REQ_MOVE_PAGE_UP:
2141 steps = view->height > view->lineno
2142 ? -view->lineno : -view->height;
2143 break;
2145 case REQ_MOVE_PAGE_DOWN:
2146 steps = view->lineno + view->height >= view->lines
2147 ? view->lines - view->lineno - 1 : view->height;
2148 break;
2150 case REQ_MOVE_UP:
2151 steps = -1;
2152 break;
2154 case REQ_MOVE_DOWN:
2155 steps = 1;
2156 break;
2158 default:
2159 die("request %d not handled in switch", request);
2160 }
2162 if (steps <= 0 && view->lineno == 0) {
2163 report("Cannot move beyond the first line");
2164 return;
2166 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2167 report("Cannot move beyond the last line");
2168 return;
2169 }
2171 /* Move the current line */
2172 view->lineno += steps;
2173 assert(0 <= view->lineno && view->lineno < view->lines);
2175 /* Check whether the view needs to be scrolled */
2176 if (view->lineno < view->offset ||
2177 view->lineno >= view->offset + view->height) {
2178 scroll_steps = steps;
2179 if (steps < 0 && -steps > view->offset) {
2180 scroll_steps = -view->offset;
2182 } else if (steps > 0) {
2183 if (view->lineno == view->lines - 1 &&
2184 view->lines > view->height) {
2185 scroll_steps = view->lines - view->offset - 1;
2186 if (scroll_steps >= view->height)
2187 scroll_steps -= view->height - 1;
2188 }
2189 }
2190 }
2192 if (!view_is_displayed(view)) {
2193 view->offset += scroll_steps;
2194 assert(0 <= view->offset && view->offset < view->lines);
2195 view->ops->select(view, &view->line[view->lineno]);
2196 return;
2197 }
2199 /* Repaint the old "current" line if we be scrolling */
2200 if (ABS(steps) < view->height)
2201 draw_view_line(view, view->lineno - steps - view->offset);
2203 if (scroll_steps) {
2204 do_scroll_view(view, scroll_steps);
2205 return;
2206 }
2208 /* Draw the current line */
2209 draw_view_line(view, view->lineno - view->offset);
2211 wnoutrefresh(view->win);
2212 report("");
2213 }
2216 /*
2217 * Searching
2218 */
2220 static void search_view(struct view *view, enum request request);
2222 static bool
2223 grep_text(struct view *view, const char *text[])
2224 {
2225 regmatch_t pmatch;
2226 size_t i;
2228 for (i = 0; text[i]; i++)
2229 if (*text[i] &&
2230 regexec(view->regex, text[i], 1, &pmatch, 0) != REG_NOMATCH)
2231 return TRUE;
2232 return FALSE;
2233 }
2235 static void
2236 select_view_line(struct view *view, unsigned long lineno)
2237 {
2238 unsigned long old_lineno = view->lineno;
2239 unsigned long old_offset = view->offset;
2241 if (goto_view_line(view, view->offset, lineno)) {
2242 if (view_is_displayed(view)) {
2243 if (old_offset != view->offset) {
2244 redraw_view(view);
2245 } else {
2246 draw_view_line(view, old_lineno - view->offset);
2247 draw_view_line(view, view->lineno - view->offset);
2248 wnoutrefresh(view->win);
2249 }
2250 } else {
2251 view->ops->select(view, &view->line[view->lineno]);
2252 }
2253 }
2254 }
2256 static void
2257 find_next(struct view *view, enum request request)
2258 {
2259 unsigned long lineno = view->lineno;
2260 int direction;
2262 if (!*view->grep) {
2263 if (!*opt_search)
2264 report("No previous search");
2265 else
2266 search_view(view, request);
2267 return;
2268 }
2270 switch (request) {
2271 case REQ_SEARCH:
2272 case REQ_FIND_NEXT:
2273 direction = 1;
2274 break;
2276 case REQ_SEARCH_BACK:
2277 case REQ_FIND_PREV:
2278 direction = -1;
2279 break;
2281 default:
2282 return;
2283 }
2285 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2286 lineno += direction;
2288 /* Note, lineno is unsigned long so will wrap around in which case it
2289 * will become bigger than view->lines. */
2290 for (; lineno < view->lines; lineno += direction) {
2291 if (view->ops->grep(view, &view->line[lineno])) {
2292 select_view_line(view, lineno);
2293 report("Line %ld matches '%s'", lineno + 1, view->grep);
2294 return;
2295 }
2296 }
2298 report("No match found for '%s'", view->grep);
2299 }
2301 static void
2302 search_view(struct view *view, enum request request)
2303 {
2304 int regex_err;
2306 if (view->regex) {
2307 regfree(view->regex);
2308 *view->grep = 0;
2309 } else {
2310 view->regex = calloc(1, sizeof(*view->regex));
2311 if (!view->regex)
2312 return;
2313 }
2315 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2316 if (regex_err != 0) {
2317 char buf[SIZEOF_STR] = "unknown error";
2319 regerror(regex_err, view->regex, buf, sizeof(buf));
2320 report("Search failed: %s", buf);
2321 return;
2322 }
2324 string_copy(view->grep, opt_search);
2326 find_next(view, request);
2327 }
2329 /*
2330 * Incremental updating
2331 */
2333 static void
2334 reset_view(struct view *view)
2335 {
2336 int i;
2338 for (i = 0; i < view->lines; i++)
2339 free(view->line[i].data);
2340 free(view->line);
2342 view->p_offset = view->offset;
2343 view->p_yoffset = view->yoffset;
2344 view->p_lineno = view->lineno;
2346 view->line = NULL;
2347 view->offset = 0;
2348 view->yoffset = 0;
2349 view->lines = 0;
2350 view->lineno = 0;
2351 view->vid[0] = 0;
2352 view->update_secs = 0;
2353 }
2355 static const char *
2356 format_arg(const char *name)
2357 {
2358 static struct {
2359 const char *name;
2360 size_t namelen;
2361 const char *value;
2362 const char *value_if_empty;
2363 } vars[] = {
2364 #define FORMAT_VAR(name, value, value_if_empty) \
2365 { name, STRING_SIZE(name), value, value_if_empty }
2366 FORMAT_VAR("%(directory)", opt_path, "."),
2367 FORMAT_VAR("%(file)", opt_file, ""),
2368 FORMAT_VAR("%(ref)", opt_ref, "HEAD"),
2369 FORMAT_VAR("%(head)", ref_head, ""),
2370 FORMAT_VAR("%(commit)", ref_commit, ""),
2371 FORMAT_VAR("%(blob)", ref_blob, ""),
2372 FORMAT_VAR("%(branch)", ref_branch, ""),
2373 };
2374 int i;
2376 for (i = 0; i < ARRAY_SIZE(vars); i++)
2377 if (!strncmp(name, vars[i].name, vars[i].namelen))
2378 return *vars[i].value ? vars[i].value : vars[i].value_if_empty;
2380 report("Unknown replacement: `%s`", name);
2381 return NULL;
2382 }
2384 static bool
2385 format_argv(const char ***dst_argv, const char *src_argv[], bool replace, bool first)
2386 {
2387 char buf[SIZEOF_STR];
2388 int argc;
2390 argv_free(*dst_argv);
2392 for (argc = 0; src_argv[argc]; argc++) {
2393 const char *arg = src_argv[argc];
2394 size_t bufpos = 0;
2396 if (!strcmp(arg, "%(fileargs)")) {
2397 if (!argv_append_array(dst_argv, opt_file_argv))
2398 break;
2399 continue;
2401 } else if (!strcmp(arg, "%(diffargs)")) {
2402 if (!argv_append_array(dst_argv, opt_diff_argv))
2403 break;
2404 continue;
2406 } else if (!strcmp(arg, "%(blameargs)")) {
2407 if (!argv_append_array(dst_argv, opt_blame_argv))
2408 break;
2409 continue;
2411 } else if (!strcmp(arg, "%(revargs)") ||
2412 (first && !strcmp(arg, "%(commit)"))) {
2413 if (!argv_append_array(dst_argv, opt_rev_argv))
2414 break;
2415 continue;
2416 }
2418 while (arg) {
2419 char *next = strstr(arg, "%(");
2420 int len = next - arg;
2421 const char *value;
2423 if (!next || !replace) {
2424 len = strlen(arg);
2425 value = "";
2427 } else {
2428 value = format_arg(next);
2430 if (!value) {
2431 return FALSE;
2432 }
2433 }
2435 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2436 return FALSE;
2438 arg = next && replace ? strchr(next, ')') + 1 : NULL;
2439 }
2441 if (!argv_append(dst_argv, buf))
2442 break;
2443 }
2445 return src_argv[argc] == NULL;
2446 }
2448 static bool
2449 restore_view_position(struct view *view)
2450 {
2451 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2452 return FALSE;
2454 /* Changing the view position cancels the restoring. */
2455 /* FIXME: Changing back to the first line is not detected. */
2456 if (view->offset != 0 || view->lineno != 0) {
2457 view->p_restore = FALSE;
2458 return FALSE;
2459 }
2461 if (goto_view_line(view, view->p_offset, view->p_lineno) &&
2462 view_is_displayed(view))
2463 werase(view->win);
2465 view->yoffset = view->p_yoffset;
2466 view->p_restore = FALSE;
2468 return TRUE;
2469 }
2471 static void
2472 end_update(struct view *view, bool force)
2473 {
2474 if (!view->pipe)
2475 return;
2476 while (!view->ops->read(view, NULL))
2477 if (!force)
2478 return;
2479 if (force)
2480 io_kill(view->pipe);
2481 io_done(view->pipe);
2482 view->pipe = NULL;
2483 }
2485 static void
2486 setup_update(struct view *view, const char *vid)
2487 {
2488 reset_view(view);
2489 string_copy_rev(view->vid, vid);
2490 view->pipe = &view->io;
2491 view->start_time = time(NULL);
2492 }
2494 static bool
2495 prepare_io(struct view *view, const char *dir, const char *argv[], bool replace)
2496 {
2497 view->dir = dir;
2498 return format_argv(&view->argv, argv, replace, !view->prev);
2499 }
2501 static bool
2502 prepare_update(struct view *view, const char *argv[], const char *dir)
2503 {
2504 if (view->pipe)
2505 end_update(view, TRUE);
2506 return prepare_io(view, dir, argv, FALSE);
2507 }
2509 static bool
2510 start_update(struct view *view, const char **argv, const char *dir)
2511 {
2512 if (view->pipe)
2513 io_done(view->pipe);
2514 return prepare_io(view, dir, argv, FALSE) &&
2515 io_run(&view->io, IO_RD, dir, view->argv);
2516 }
2518 static bool
2519 prepare_update_file(struct view *view, const char *name)
2520 {
2521 if (view->pipe)
2522 end_update(view, TRUE);
2523 argv_free(view->argv);
2524 return io_open(&view->io, "%s/%s", opt_cdup[0] ? opt_cdup : ".", name);
2525 }
2527 static bool
2528 begin_update(struct view *view, const char *dir, const char **argv, enum open_flags flags)
2529 {
2530 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2531 bool refresh = flags & (OPEN_REFRESH | OPEN_PREPARED);
2533 if (!reload && !strcmp(view->vid, view->id))
2534 return TRUE;
2536 if (view->pipe)
2537 end_update(view, TRUE);
2539 if (!refresh) {
2540 if (!prepare_io(view, dir, argv, TRUE))
2541 return FALSE;
2543 /* Put the current ref_* value to the view title ref
2544 * member. This is needed by the blob view. Most other
2545 * views sets it automatically after loading because the
2546 * first line is a commit line. */
2547 string_copy_rev(view->ref, view->id);
2548 }
2550 if (view->argv && view->argv[0] &&
2551 !io_run(&view->io, IO_RD, view->dir, view->argv))
2552 return FALSE;
2554 setup_update(view, view->id);
2556 return TRUE;
2557 }
2559 static bool
2560 view_open(struct view *view, enum open_flags flags)
2561 {
2562 return begin_update(view, NULL, NULL, flags);
2563 }
2565 static bool
2566 update_view(struct view *view)
2567 {
2568 char out_buffer[BUFSIZ * 2];
2569 char *line;
2570 /* Clear the view and redraw everything since the tree sorting
2571 * might have rearranged things. */
2572 bool redraw = view->lines == 0;
2573 bool can_read = TRUE;
2575 if (!view->pipe)
2576 return TRUE;
2578 if (!io_can_read(view->pipe, FALSE)) {
2579 if (view->lines == 0 && view_is_displayed(view)) {
2580 time_t secs = time(NULL) - view->start_time;
2582 if (secs > 1 && secs > view->update_secs) {
2583 if (view->update_secs == 0)
2584 redraw_view(view);
2585 update_view_title(view);
2586 view->update_secs = secs;
2587 }
2588 }
2589 return TRUE;
2590 }
2592 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2593 if (opt_iconv_in != ICONV_NONE) {
2594 ICONV_CONST char *inbuf = line;
2595 size_t inlen = strlen(line) + 1;
2597 char *outbuf = out_buffer;
2598 size_t outlen = sizeof(out_buffer);
2600 size_t ret;
2602 ret = iconv(opt_iconv_in, &inbuf, &inlen, &outbuf, &outlen);
2603 if (ret != (size_t) -1)
2604 line = out_buffer;
2605 }
2607 if (!view->ops->read(view, line)) {
2608 report("Allocation failure");
2609 end_update(view, TRUE);
2610 return FALSE;
2611 }
2612 }
2614 {
2615 unsigned long lines = view->lines;
2616 int digits;
2618 for (digits = 0; lines; digits++)
2619 lines /= 10;
2621 /* Keep the displayed view in sync with line number scaling. */
2622 if (digits != view->digits) {
2623 view->digits = digits;
2624 if (opt_line_number || view->type == VIEW_BLAME)
2625 redraw = TRUE;
2626 }
2627 }
2629 if (io_error(view->pipe)) {
2630 report("Failed to read: %s", io_strerror(view->pipe));
2631 end_update(view, TRUE);
2633 } else if (io_eof(view->pipe)) {
2634 if (view_is_displayed(view))
2635 report("");
2636 end_update(view, FALSE);
2637 }
2639 if (restore_view_position(view))
2640 redraw = TRUE;
2642 if (!view_is_displayed(view))
2643 return TRUE;
2645 if (redraw)
2646 redraw_view_from(view, 0);
2647 else
2648 redraw_view_dirty(view);
2650 /* Update the title _after_ the redraw so that if the redraw picks up a
2651 * commit reference in view->ref it'll be available here. */
2652 update_view_title(view);
2653 return TRUE;
2654 }
2656 DEFINE_ALLOCATOR(realloc_lines, struct line, 256)
2658 static struct line *
2659 add_line_data(struct view *view, void *data, enum line_type type)
2660 {
2661 struct line *line;
2663 if (!realloc_lines(&view->line, view->lines, 1))
2664 return NULL;
2666 line = &view->line[view->lines++];
2667 memset(line, 0, sizeof(*line));
2668 line->type = type;
2669 line->data = data;
2670 line->dirty = 1;
2672 return line;
2673 }
2675 static struct line *
2676 add_line_text(struct view *view, const char *text, enum line_type type)
2677 {
2678 char *data = text ? strdup(text) : NULL;
2680 return data ? add_line_data(view, data, type) : NULL;
2681 }
2683 static struct line *
2684 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2685 {
2686 char buf[SIZEOF_STR];
2687 va_list args;
2689 va_start(args, fmt);
2690 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2691 buf[0] = 0;
2692 va_end(args);
2694 return buf[0] ? add_line_text(view, buf, type) : NULL;
2695 }
2697 /*
2698 * View opening
2699 */
2701 static void
2702 open_view(struct view *prev, enum request request, enum open_flags flags)
2703 {
2704 bool split = !!(flags & OPEN_SPLIT);
2705 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2706 bool nomaximize = !!(flags & OPEN_REFRESH);
2707 struct view *view = VIEW(request);
2708 int nviews = displayed_views();
2709 struct view *base_view = display[0];
2711 if (view == prev && nviews == 1 && !reload) {
2712 report("Already in %s view", view->name);
2713 return;
2714 }
2716 if (view->git_dir && !opt_git_dir[0]) {
2717 report("The %s view is disabled in pager view", view->name);
2718 return;
2719 }
2721 if (split) {
2722 display[1] = view;
2723 current_view = 1;
2724 view->parent = prev;
2725 } else if (!nomaximize) {
2726 /* Maximize the current view. */
2727 memset(display, 0, sizeof(display));
2728 current_view = 0;
2729 display[current_view] = view;
2730 }
2732 /* No prev signals that this is the first loaded view. */
2733 if (prev && view != prev) {
2734 view->prev = prev;
2735 }
2737 /* Resize the view when switching between split- and full-screen,
2738 * or when switching between two different full-screen views. */
2739 if (nviews != displayed_views() ||
2740 (nviews == 1 && base_view != display[0]))
2741 resize_display();
2743 if (view->ops->open) {
2744 if (view->pipe)
2745 end_update(view, TRUE);
2746 if (!view->ops->open(view, flags)) {
2747 report("Failed to load %s view", view->name);
2748 return;
2749 }
2750 restore_view_position(view);
2751 }
2753 if (split && prev->lineno - prev->offset >= prev->height) {
2754 /* Take the title line into account. */
2755 int lines = prev->lineno - prev->offset - prev->height + 1;
2757 /* Scroll the view that was split if the current line is
2758 * outside the new limited view. */
2759 do_scroll_view(prev, lines);
2760 }
2762 if (prev && view != prev && split && view_is_displayed(prev)) {
2763 /* "Blur" the previous view. */
2764 update_view_title(prev);
2765 }
2767 if (view->pipe && view->lines == 0) {
2768 /* Clear the old view and let the incremental updating refill
2769 * the screen. */
2770 werase(view->win);
2771 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
2772 report("");
2773 } else if (view_is_displayed(view)) {
2774 redraw_view(view);
2775 report("");
2776 }
2777 }
2779 static void
2780 open_external_viewer(const char *argv[], const char *dir)
2781 {
2782 def_prog_mode(); /* save current tty modes */
2783 endwin(); /* restore original tty modes */
2784 io_run_fg(argv, dir);
2785 fprintf(stderr, "Press Enter to continue");
2786 getc(opt_tty);
2787 reset_prog_mode();
2788 redraw_display(TRUE);
2789 }
2791 static void
2792 open_mergetool(const char *file)
2793 {
2794 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
2796 open_external_viewer(mergetool_argv, opt_cdup);
2797 }
2799 static void
2800 open_editor(const char *file)
2801 {
2802 const char *editor_argv[] = { "vi", file, NULL };
2803 const char *editor;
2805 editor = getenv("GIT_EDITOR");
2806 if (!editor && *opt_editor)
2807 editor = opt_editor;
2808 if (!editor)
2809 editor = getenv("VISUAL");
2810 if (!editor)
2811 editor = getenv("EDITOR");
2812 if (!editor)
2813 editor = "vi";
2815 editor_argv[0] = editor;
2816 open_external_viewer(editor_argv, opt_cdup);
2817 }
2819 static void
2820 open_run_request(enum request request)
2821 {
2822 struct run_request *req = get_run_request(request);
2823 const char **argv = NULL;
2825 if (!req) {
2826 report("Unknown run request");
2827 return;
2828 }
2830 if (format_argv(&argv, req->argv, TRUE, FALSE))
2831 open_external_viewer(argv, NULL);
2832 if (argv)
2833 argv_free(argv);
2834 free(argv);
2835 }
2837 /*
2838 * User request switch noodle
2839 */
2841 static int
2842 view_driver(struct view *view, enum request request)
2843 {
2844 int i;
2846 if (request == REQ_NONE)
2847 return TRUE;
2849 if (request > REQ_NONE) {
2850 open_run_request(request);
2851 view_request(view, REQ_REFRESH);
2852 return TRUE;
2853 }
2855 request = view_request(view, request);
2856 if (request == REQ_NONE)
2857 return TRUE;
2859 switch (request) {
2860 case REQ_MOVE_UP:
2861 case REQ_MOVE_DOWN:
2862 case REQ_MOVE_PAGE_UP:
2863 case REQ_MOVE_PAGE_DOWN:
2864 case REQ_MOVE_FIRST_LINE:
2865 case REQ_MOVE_LAST_LINE:
2866 move_view(view, request);
2867 break;
2869 case REQ_SCROLL_FIRST_COL:
2870 case REQ_SCROLL_LEFT:
2871 case REQ_SCROLL_RIGHT:
2872 case REQ_SCROLL_LINE_DOWN:
2873 case REQ_SCROLL_LINE_UP:
2874 case REQ_SCROLL_PAGE_DOWN:
2875 case REQ_SCROLL_PAGE_UP:
2876 scroll_view(view, request);
2877 break;
2879 case REQ_VIEW_BLAME:
2880 if (!opt_file[0]) {
2881 report("No file chosen, press %s to open tree view",
2882 get_key(view->keymap, REQ_VIEW_TREE));
2883 break;
2884 }
2885 open_view(view, request, OPEN_DEFAULT);
2886 break;
2888 case REQ_VIEW_BLOB:
2889 if (!ref_blob[0]) {
2890 report("No file chosen, press %s to open tree view",
2891 get_key(view->keymap, REQ_VIEW_TREE));
2892 break;
2893 }
2894 open_view(view, request, OPEN_DEFAULT);
2895 break;
2897 case REQ_VIEW_PAGER:
2898 if (view == NULL) {
2899 if (!io_open(&VIEW(REQ_VIEW_PAGER)->io, ""))
2900 die("Failed to open stdin");
2901 open_view(view, request, OPEN_PREPARED);
2902 break;
2903 }
2905 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2906 report("No pager content, press %s to run command from prompt",
2907 get_key(view->keymap, REQ_PROMPT));
2908 break;
2909 }
2910 open_view(view, request, OPEN_DEFAULT);
2911 break;
2913 case REQ_VIEW_STAGE:
2914 if (!VIEW(REQ_VIEW_STAGE)->lines) {
2915 report("No stage content, press %s to open the status view and choose file",
2916 get_key(view->keymap, REQ_VIEW_STATUS));
2917 break;
2918 }
2919 open_view(view, request, OPEN_DEFAULT);
2920 break;
2922 case REQ_VIEW_STATUS:
2923 if (opt_is_inside_work_tree == FALSE) {
2924 report("The status view requires a working tree");
2925 break;
2926 }
2927 open_view(view, request, OPEN_DEFAULT);
2928 break;
2930 case REQ_VIEW_MAIN:
2931 case REQ_VIEW_DIFF:
2932 case REQ_VIEW_LOG:
2933 case REQ_VIEW_TREE:
2934 case REQ_VIEW_HELP:
2935 case REQ_VIEW_BRANCH:
2936 open_view(view, request, OPEN_DEFAULT);
2937 break;
2939 case REQ_NEXT:
2940 case REQ_PREVIOUS:
2941 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2943 if (view->parent) {
2944 int line;
2946 view = view->parent;
2947 line = view->lineno;
2948 move_view(view, request);
2949 if (view_is_displayed(view))
2950 update_view_title(view);
2951 if (line != view->lineno)
2952 view_request(view, REQ_ENTER);
2953 } else {
2954 move_view(view, request);
2955 }
2956 break;
2958 case REQ_VIEW_NEXT:
2959 {
2960 int nviews = displayed_views();
2961 int next_view = (current_view + 1) % nviews;
2963 if (next_view == current_view) {
2964 report("Only one view is displayed");
2965 break;
2966 }
2968 current_view = next_view;
2969 /* Blur out the title of the previous view. */
2970 update_view_title(view);
2971 report("");
2972 break;
2973 }
2974 case REQ_REFRESH:
2975 report("Refreshing is not yet supported for the %s view", view->name);
2976 break;
2978 case REQ_MAXIMIZE:
2979 if (displayed_views() == 2)
2980 maximize_view(view);
2981 break;
2983 case REQ_OPTIONS:
2984 case REQ_TOGGLE_LINENO:
2985 case REQ_TOGGLE_DATE:
2986 case REQ_TOGGLE_AUTHOR:
2987 case REQ_TOGGLE_GRAPHIC:
2988 case REQ_TOGGLE_REV_GRAPH:
2989 case REQ_TOGGLE_REFS:
2990 toggle_option(request);
2991 break;
2993 case REQ_TOGGLE_SORT_FIELD:
2994 case REQ_TOGGLE_SORT_ORDER:
2995 report("Sorting is not yet supported for the %s view", view->name);
2996 break;
2998 case REQ_SEARCH:
2999 case REQ_SEARCH_BACK:
3000 search_view(view, request);
3001 break;
3003 case REQ_FIND_NEXT:
3004 case REQ_FIND_PREV:
3005 find_next(view, request);
3006 break;
3008 case REQ_STOP_LOADING:
3009 foreach_view(view, i) {
3010 if (view->pipe)
3011 report("Stopped loading the %s view", view->name),
3012 end_update(view, TRUE);
3013 }
3014 break;
3016 case REQ_SHOW_VERSION:
3017 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3018 return TRUE;
3020 case REQ_SCREEN_REDRAW:
3021 redraw_display(TRUE);
3022 break;
3024 case REQ_EDIT:
3025 report("Nothing to edit");
3026 break;
3028 case REQ_ENTER:
3029 report("Nothing to enter");
3030 break;
3032 case REQ_VIEW_CLOSE:
3033 /* XXX: Mark closed views by letting view->prev point to the
3034 * view itself. Parents to closed view should never be
3035 * followed. */
3036 if (view->prev && view->prev != view) {
3037 maximize_view(view->prev);
3038 view->prev = view;
3039 break;
3040 }
3041 /* Fall-through */
3042 case REQ_QUIT:
3043 return FALSE;
3045 default:
3046 report("Unknown key, press %s for help",
3047 get_key(view->keymap, REQ_VIEW_HELP));
3048 return TRUE;
3049 }
3051 return TRUE;
3052 }
3055 /*
3056 * View backend utilities
3057 */
3059 enum sort_field {
3060 ORDERBY_NAME,
3061 ORDERBY_DATE,
3062 ORDERBY_AUTHOR,
3063 };
3065 struct sort_state {
3066 const enum sort_field *fields;
3067 size_t size, current;
3068 bool reverse;
3069 };
3071 #define SORT_STATE(fields) { fields, ARRAY_SIZE(fields), 0 }
3072 #define get_sort_field(state) ((state).fields[(state).current])
3073 #define sort_order(state, result) ((state).reverse ? -(result) : (result))
3075 static void
3076 sort_view(struct view *view, enum request request, struct sort_state *state,
3077 int (*compare)(const void *, const void *))
3078 {
3079 switch (request) {
3080 case REQ_TOGGLE_SORT_FIELD:
3081 state->current = (state->current + 1) % state->size;
3082 break;
3084 case REQ_TOGGLE_SORT_ORDER:
3085 state->reverse = !state->reverse;
3086 break;
3087 default:
3088 die("Not a sort request");
3089 }
3091 qsort(view->line, view->lines, sizeof(*view->line), compare);
3092 redraw_view(view);
3093 }
3095 DEFINE_ALLOCATOR(realloc_authors, const char *, 256)
3097 /* Small author cache to reduce memory consumption. It uses binary
3098 * search to lookup or find place to position new entries. No entries
3099 * are ever freed. */
3100 static const char *
3101 get_author(const char *name)
3102 {
3103 static const char **authors;
3104 static size_t authors_size;
3105 int from = 0, to = authors_size - 1;
3107 while (from <= to) {
3108 size_t pos = (to + from) / 2;
3109 int cmp = strcmp(name, authors[pos]);
3111 if (!cmp)
3112 return authors[pos];
3114 if (cmp < 0)
3115 to = pos - 1;
3116 else
3117 from = pos + 1;
3118 }
3120 if (!realloc_authors(&authors, authors_size, 1))
3121 return NULL;
3122 name = strdup(name);
3123 if (!name)
3124 return NULL;
3126 memmove(authors + from + 1, authors + from, (authors_size - from) * sizeof(*authors));
3127 authors[from] = name;
3128 authors_size++;
3130 return name;
3131 }
3133 static void
3134 parse_timesec(struct time *time, const char *sec)
3135 {
3136 time->sec = (time_t) atol(sec);
3137 }
3139 static void
3140 parse_timezone(struct time *time, const char *zone)
3141 {
3142 long tz;
3144 tz = ('0' - zone[1]) * 60 * 60 * 10;
3145 tz += ('0' - zone[2]) * 60 * 60;
3146 tz += ('0' - zone[3]) * 60 * 10;
3147 tz += ('0' - zone[4]) * 60;
3149 if (zone[0] == '-')
3150 tz = -tz;
3152 time->tz = tz;
3153 time->sec -= tz;
3154 }
3156 /* Parse author lines where the name may be empty:
3157 * author <email@address.tld> 1138474660 +0100
3158 */
3159 static void
3160 parse_author_line(char *ident, const char **author, struct time *time)
3161 {
3162 char *nameend = strchr(ident, '<');
3163 char *emailend = strchr(ident, '>');
3165 if (nameend && emailend)
3166 *nameend = *emailend = 0;
3167 ident = chomp_string(ident);
3168 if (!*ident) {
3169 if (nameend)
3170 ident = chomp_string(nameend + 1);
3171 if (!*ident)
3172 ident = "Unknown";
3173 }
3175 *author = get_author(ident);
3177 /* Parse epoch and timezone */
3178 if (emailend && emailend[1] == ' ') {
3179 char *secs = emailend + 2;
3180 char *zone = strchr(secs, ' ');
3182 parse_timesec(time, secs);
3184 if (zone && strlen(zone) == STRING_SIZE(" +0700"))
3185 parse_timezone(time, zone + 1);
3186 }
3187 }
3189 /*
3190 * Pager backend
3191 */
3193 static bool
3194 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3195 {
3196 if (opt_line_number && draw_lineno(view, lineno))
3197 return TRUE;
3199 draw_text(view, line->type, line->data);
3200 return TRUE;
3201 }
3203 static bool
3204 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3205 {
3206 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3207 char ref[SIZEOF_STR];
3209 if (!io_run_buf(describe_argv, ref, sizeof(ref)) || !*ref)
3210 return TRUE;
3212 /* This is the only fatal call, since it can "corrupt" the buffer. */
3213 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3214 return FALSE;
3216 return TRUE;
3217 }
3219 static void
3220 add_pager_refs(struct view *view, struct line *line)
3221 {
3222 char buf[SIZEOF_STR];
3223 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3224 struct ref_list *list;
3225 size_t bufpos = 0, i;
3226 const char *sep = "Refs: ";
3227 bool is_tag = FALSE;
3229 assert(line->type == LINE_COMMIT);
3231 list = get_ref_list(commit_id);
3232 if (!list) {
3233 if (view->type == VIEW_DIFF)
3234 goto try_add_describe_ref;
3235 return;
3236 }
3238 for (i = 0; i < list->size; i++) {
3239 struct ref *ref = list->refs[i];
3240 const char *fmt = ref->tag ? "%s[%s]" :
3241 ref->remote ? "%s<%s>" : "%s%s";
3243 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3244 return;
3245 sep = ", ";
3246 if (ref->tag)
3247 is_tag = TRUE;
3248 }
3250 if (!is_tag && view->type == VIEW_DIFF) {
3251 try_add_describe_ref:
3252 /* Add <tag>-g<commit_id> "fake" reference. */
3253 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3254 return;
3255 }
3257 if (bufpos == 0)
3258 return;
3260 add_line_text(view, buf, LINE_PP_REFS);
3261 }
3263 static bool
3264 pager_read(struct view *view, char *data)
3265 {
3266 struct line *line;
3268 if (!data)
3269 return TRUE;
3271 line = add_line_text(view, data, get_line_type(data));
3272 if (!line)
3273 return FALSE;
3275 if (line->type == LINE_COMMIT &&
3276 (view->type == VIEW_DIFF ||
3277 view->type == VIEW_LOG))
3278 add_pager_refs(view, line);
3280 return TRUE;
3281 }
3283 static enum request
3284 pager_request(struct view *view, enum request request, struct line *line)
3285 {
3286 int split = 0;
3288 if (request != REQ_ENTER)
3289 return request;
3291 if (line->type == LINE_COMMIT &&
3292 (view->type == VIEW_LOG ||
3293 view->type == VIEW_PAGER)) {
3294 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3295 split = 1;
3296 }
3298 /* Always scroll the view even if it was split. That way
3299 * you can use Enter to scroll through the log view and
3300 * split open each commit diff. */
3301 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3303 /* FIXME: A minor workaround. Scrolling the view will call report("")
3304 * but if we are scrolling a non-current view this won't properly
3305 * update the view title. */
3306 if (split)
3307 update_view_title(view);
3309 return REQ_NONE;
3310 }
3312 static bool
3313 pager_grep(struct view *view, struct line *line)
3314 {
3315 const char *text[] = { line->data, NULL };
3317 return grep_text(view, text);
3318 }
3320 static void
3321 pager_select(struct view *view, struct line *line)
3322 {
3323 if (line->type == LINE_COMMIT) {
3324 char *text = (char *)line->data + STRING_SIZE("commit ");
3326 if (view->type != VIEW_PAGER)
3327 string_copy_rev(view->ref, text);
3328 string_copy_rev(ref_commit, text);
3329 }
3330 }
3332 static struct view_ops pager_ops = {
3333 "line",
3334 view_open,
3335 pager_read,
3336 pager_draw,
3337 pager_request,
3338 pager_grep,
3339 pager_select,
3340 };
3342 static bool
3343 log_open(struct view *view, enum open_flags flags)
3344 {
3345 static const char *log_argv[] = {
3346 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3347 };
3349 return begin_update(view, NULL, log_argv, flags);
3350 }
3352 static enum request
3353 log_request(struct view *view, enum request request, struct line *line)
3354 {
3355 switch (request) {
3356 case REQ_REFRESH:
3357 load_refs();
3358 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3359 return REQ_NONE;
3360 default:
3361 return pager_request(view, request, line);
3362 }
3363 }
3365 static struct view_ops log_ops = {
3366 "line",
3367 log_open,
3368 pager_read,
3369 pager_draw,
3370 log_request,
3371 pager_grep,
3372 pager_select,
3373 };
3375 static bool
3376 diff_open(struct view *view, enum open_flags flags)
3377 {
3378 static const char *diff_argv[] = {
3379 "git", "show", "--pretty=fuller", "--no-color", "--root",
3380 "--patch-with-stat", "--find-copies-harder", "-C",
3381 "%(diffargs)", "%(commit)", "--", "%(fileargs)", NULL
3382 };
3384 return begin_update(view, NULL, diff_argv, flags);
3385 }
3387 static bool
3388 diff_read(struct view *view, char *data)
3389 {
3390 if (!data) {
3391 /* Fall back to retry if no diff will be shown. */
3392 if (view->lines == 0 && opt_file_argv) {
3393 int pos = argv_size(view->argv)
3394 - argv_size(opt_file_argv) - 1;
3396 if (pos > 0 && !strcmp(view->argv[pos], "--")) {
3397 for (; view->argv[pos]; pos++) {
3398 free((void *) view->argv[pos]);
3399 view->argv[pos] = NULL;
3400 }
3402 if (view->pipe)
3403 io_done(view->pipe);
3404 if (io_run(&view->io, IO_RD, view->dir, view->argv))
3405 return FALSE;
3406 }
3407 }
3408 return TRUE;
3409 }
3411 return pager_read(view, data);
3412 }
3414 static struct view_ops diff_ops = {
3415 "line",
3416 diff_open,
3417 diff_read,
3418 pager_draw,
3419 pager_request,
3420 pager_grep,
3421 pager_select,
3422 };
3424 /*
3425 * Help backend
3426 */
3428 static bool help_keymap_hidden[ARRAY_SIZE(keymap_table)];
3430 static bool
3431 help_open_keymap_title(struct view *view, enum keymap keymap)
3432 {
3433 struct line *line;
3435 line = add_line_format(view, LINE_HELP_KEYMAP, "[%c] %s bindings",
3436 help_keymap_hidden[keymap] ? '+' : '-',
3437 enum_name(keymap_table[keymap]));
3438 if (line)
3439 line->other = keymap;
3441 return help_keymap_hidden[keymap];
3442 }
3444 static void
3445 help_open_keymap(struct view *view, enum keymap keymap)
3446 {
3447 const char *group = NULL;
3448 char buf[SIZEOF_STR];
3449 size_t bufpos;
3450 bool add_title = TRUE;
3451 int i;
3453 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3454 const char *key = NULL;
3456 if (req_info[i].request == REQ_NONE)
3457 continue;
3459 if (!req_info[i].request) {
3460 group = req_info[i].help;
3461 continue;
3462 }
3464 key = get_keys(keymap, req_info[i].request, TRUE);
3465 if (!key || !*key)
3466 continue;
3468 if (add_title && help_open_keymap_title(view, keymap))
3469 return;
3470 add_title = FALSE;
3472 if (group) {
3473 add_line_text(view, group, LINE_HELP_GROUP);
3474 group = NULL;
3475 }
3477 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s", key,
3478 enum_name(req_info[i]), req_info[i].help);
3479 }
3481 group = "External commands:";
3483 for (i = 0; i < run_requests; i++) {
3484 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3485 const char *key;
3486 int argc;
3488 if (!req || req->keymap != keymap)
3489 continue;
3491 key = get_key_name(req->key);
3492 if (!*key)
3493 key = "(no key defined)";
3495 if (add_title && help_open_keymap_title(view, keymap))
3496 return;
3497 if (group) {
3498 add_line_text(view, group, LINE_HELP_GROUP);
3499 group = NULL;
3500 }
3502 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3503 if (!string_format_from(buf, &bufpos, "%s%s",
3504 argc ? " " : "", req->argv[argc]))
3505 return;
3507 add_line_format(view, LINE_DEFAULT, " %-25s `%s`", key, buf);
3508 }
3509 }
3511 static bool
3512 help_open(struct view *view, enum open_flags flags)
3513 {
3514 enum keymap keymap;
3516 reset_view(view);
3517 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3518 add_line_text(view, "", LINE_DEFAULT);
3520 for (keymap = 0; keymap < ARRAY_SIZE(keymap_table); keymap++)
3521 help_open_keymap(view, keymap);
3523 return TRUE;
3524 }
3526 static enum request
3527 help_request(struct view *view, enum request request, struct line *line)
3528 {
3529 switch (request) {
3530 case REQ_ENTER:
3531 if (line->type == LINE_HELP_KEYMAP) {
3532 help_keymap_hidden[line->other] =
3533 !help_keymap_hidden[line->other];
3534 view->p_restore = TRUE;
3535 open_view(view, REQ_VIEW_HELP, OPEN_REFRESH);
3536 }
3538 return REQ_NONE;
3539 default:
3540 return pager_request(view, request, line);
3541 }
3542 }
3544 static struct view_ops help_ops = {
3545 "line",
3546 help_open,
3547 NULL,
3548 pager_draw,
3549 help_request,
3550 pager_grep,
3551 pager_select,
3552 };
3555 /*
3556 * Tree backend
3557 */
3559 struct tree_stack_entry {
3560 struct tree_stack_entry *prev; /* Entry below this in the stack */
3561 unsigned long lineno; /* Line number to restore */
3562 char *name; /* Position of name in opt_path */
3563 };
3565 /* The top of the path stack. */
3566 static struct tree_stack_entry *tree_stack = NULL;
3567 unsigned long tree_lineno = 0;
3569 static void
3570 pop_tree_stack_entry(void)
3571 {
3572 struct tree_stack_entry *entry = tree_stack;
3574 tree_lineno = entry->lineno;
3575 entry->name[0] = 0;
3576 tree_stack = entry->prev;
3577 free(entry);
3578 }
3580 static void
3581 push_tree_stack_entry(const char *name, unsigned long lineno)
3582 {
3583 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3584 size_t pathlen = strlen(opt_path);
3586 if (!entry)
3587 return;
3589 entry->prev = tree_stack;
3590 entry->name = opt_path + pathlen;
3591 tree_stack = entry;
3593 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3594 pop_tree_stack_entry();
3595 return;
3596 }
3598 /* Move the current line to the first tree entry. */
3599 tree_lineno = 1;
3600 entry->lineno = lineno;
3601 }
3603 /* Parse output from git-ls-tree(1):
3604 *
3605 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3606 */
3608 #define SIZEOF_TREE_ATTR \
3609 STRING_SIZE("100644 blob f931e1d229c3e185caad4449bf5b66ed72462657\t")
3611 #define SIZEOF_TREE_MODE \
3612 STRING_SIZE("100644 ")
3614 #define TREE_ID_OFFSET \
3615 STRING_SIZE("100644 blob ")
3617 struct tree_entry {
3618 char id[SIZEOF_REV];
3619 mode_t mode;
3620 struct time time; /* Date from the author ident. */
3621 const char *author; /* Author of the commit. */
3622 char name[1];
3623 };
3625 static const char *
3626 tree_path(const struct line *line)
3627 {
3628 return ((struct tree_entry *) line->data)->name;
3629 }
3631 static int
3632 tree_compare_entry(const struct line *line1, const struct line *line2)
3633 {
3634 if (line1->type != line2->type)
3635 return line1->type == LINE_TREE_DIR ? -1 : 1;
3636 return strcmp(tree_path(line1), tree_path(line2));
3637 }
3639 static const enum sort_field tree_sort_fields[] = {
3640 ORDERBY_NAME, ORDERBY_DATE, ORDERBY_AUTHOR
3641 };
3642 static struct sort_state tree_sort_state = SORT_STATE(tree_sort_fields);
3644 static int
3645 tree_compare(const void *l1, const void *l2)
3646 {
3647 const struct line *line1 = (const struct line *) l1;
3648 const struct line *line2 = (const struct line *) l2;
3649 const struct tree_entry *entry1 = ((const struct line *) l1)->data;
3650 const struct tree_entry *entry2 = ((const struct line *) l2)->data;
3652 if (line1->type == LINE_TREE_HEAD)
3653 return -1;
3654 if (line2->type == LINE_TREE_HEAD)
3655 return 1;
3657 switch (get_sort_field(tree_sort_state)) {
3658 case ORDERBY_DATE:
3659 return sort_order(tree_sort_state, timecmp(&entry1->time, &entry2->time));
3661 case ORDERBY_AUTHOR:
3662 return sort_order(tree_sort_state, strcmp(entry1->author, entry2->author));
3664 case ORDERBY_NAME:
3665 default:
3666 return sort_order(tree_sort_state, tree_compare_entry(line1, line2));
3667 }
3668 }
3671 static struct line *
3672 tree_entry(struct view *view, enum line_type type, const char *path,
3673 const char *mode, const char *id)
3674 {
3675 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3676 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3678 if (!entry || !line) {
3679 free(entry);
3680 return NULL;
3681 }
3683 strncpy(entry->name, path, strlen(path));
3684 if (mode)
3685 entry->mode = strtoul(mode, NULL, 8);
3686 if (id)
3687 string_copy_rev(entry->id, id);
3689 return line;
3690 }
3692 static bool
3693 tree_read_date(struct view *view, char *text, bool *read_date)
3694 {
3695 static const char *author_name;
3696 static struct time author_time;
3698 if (!text && *read_date) {
3699 *read_date = FALSE;
3700 return TRUE;
3702 } else if (!text) {
3703 char *path = *opt_path ? opt_path : ".";
3704 /* Find next entry to process */
3705 const char *log_file[] = {
3706 "git", "log", "--no-color", "--pretty=raw",
3707 "--cc", "--raw", view->id, "--", path, NULL
3708 };
3710 if (!view->lines) {
3711 tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL);
3712 report("Tree is empty");
3713 return TRUE;
3714 }
3716 if (!start_update(view, log_file, opt_cdup)) {
3717 report("Failed to load tree data");
3718 return TRUE;
3719 }
3721 *read_date = TRUE;
3722 return FALSE;
3724 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3725 parse_author_line(text + STRING_SIZE("author "),
3726 &author_name, &author_time);
3728 } else if (*text == ':') {
3729 char *pos;
3730 size_t annotated = 1;
3731 size_t i;
3733 pos = strchr(text, '\t');
3734 if (!pos)
3735 return TRUE;
3736 text = pos + 1;
3737 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3738 text += strlen(opt_path);
3739 pos = strchr(text, '/');
3740 if (pos)
3741 *pos = 0;
3743 for (i = 1; i < view->lines; i++) {
3744 struct line *line = &view->line[i];
3745 struct tree_entry *entry = line->data;
3747 annotated += !!entry->author;
3748 if (entry->author || strcmp(entry->name, text))
3749 continue;
3751 entry->author = author_name;
3752 entry->time = author_time;
3753 line->dirty = 1;
3754 break;
3755 }
3757 if (annotated == view->lines)
3758 io_kill(view->pipe);
3759 }
3760 return TRUE;
3761 }
3763 static bool
3764 tree_read(struct view *view, char *text)
3765 {
3766 static bool read_date = FALSE;
3767 struct tree_entry *data;
3768 struct line *entry, *line;
3769 enum line_type type;
3770 size_t textlen = text ? strlen(text) : 0;
3771 char *path = text + SIZEOF_TREE_ATTR;
3773 if (read_date || !text)
3774 return tree_read_date(view, text, &read_date);
3776 if (textlen <= SIZEOF_TREE_ATTR)
3777 return FALSE;
3778 if (view->lines == 0 &&
3779 !tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL))
3780 return FALSE;
3782 /* Strip the path part ... */
3783 if (*opt_path) {
3784 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3785 size_t striplen = strlen(opt_path);
3787 if (pathlen > striplen)
3788 memmove(path, path + striplen,
3789 pathlen - striplen + 1);
3791 /* Insert "link" to parent directory. */
3792 if (view->lines == 1 &&
3793 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3794 return FALSE;
3795 }
3797 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3798 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3799 if (!entry)
3800 return FALSE;
3801 data = entry->data;
3803 /* Skip "Directory ..." and ".." line. */
3804 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3805 if (tree_compare_entry(line, entry) <= 0)
3806 continue;
3808 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3810 line->data = data;
3811 line->type = type;
3812 for (; line <= entry; line++)
3813 line->dirty = line->cleareol = 1;
3814 return TRUE;
3815 }
3817 if (tree_lineno > view->lineno) {
3818 view->lineno = tree_lineno;
3819 tree_lineno = 0;
3820 }
3822 return TRUE;
3823 }
3825 static bool
3826 tree_draw(struct view *view, struct line *line, unsigned int lineno)
3827 {
3828 struct tree_entry *entry = line->data;
3830 if (line->type == LINE_TREE_HEAD) {
3831 if (draw_text(view, line->type, "Directory path /"))
3832 return TRUE;
3833 } else {
3834 if (draw_mode(view, entry->mode))
3835 return TRUE;
3837 if (opt_author && draw_author(view, entry->author))
3838 return TRUE;
3840 if (opt_date && draw_date(view, &entry->time))
3841 return TRUE;
3842 }
3844 draw_text(view, line->type, entry->name);
3845 return TRUE;
3846 }
3848 static void
3849 open_blob_editor(const char *id)
3850 {
3851 const char *blob_argv[] = { "git", "cat-file", "blob", id, NULL };
3852 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
3853 int fd = mkstemp(file);
3855 if (fd == -1)
3856 report("Failed to create temporary file");
3857 else if (!io_run_append(blob_argv, fd))
3858 report("Failed to save blob data to file");
3859 else
3860 open_editor(file);
3861 if (fd != -1)
3862 unlink(file);
3863 }
3865 static enum request
3866 tree_request(struct view *view, enum request request, struct line *line)
3867 {
3868 enum open_flags flags;
3869 struct tree_entry *entry = line->data;
3871 switch (request) {
3872 case REQ_VIEW_BLAME:
3873 if (line->type != LINE_TREE_FILE) {
3874 report("Blame only supported for files");
3875 return REQ_NONE;
3876 }
3878 string_copy(opt_ref, view->vid);
3879 return request;
3881 case REQ_EDIT:
3882 if (line->type != LINE_TREE_FILE) {
3883 report("Edit only supported for files");
3884 } else if (!is_head_commit(view->vid)) {
3885 open_blob_editor(entry->id);
3886 } else {
3887 open_editor(opt_file);
3888 }
3889 return REQ_NONE;
3891 case REQ_TOGGLE_SORT_FIELD:
3892 case REQ_TOGGLE_SORT_ORDER:
3893 sort_view(view, request, &tree_sort_state, tree_compare);
3894 return REQ_NONE;
3896 case REQ_PARENT:
3897 if (!*opt_path) {
3898 /* quit view if at top of tree */
3899 return REQ_VIEW_CLOSE;
3900 }
3901 /* fake 'cd ..' */
3902 line = &view->line[1];
3903 break;
3905 case REQ_ENTER:
3906 break;
3908 default:
3909 return request;
3910 }
3912 /* Cleanup the stack if the tree view is at a different tree. */
3913 while (!*opt_path && tree_stack)
3914 pop_tree_stack_entry();
3916 switch (line->type) {
3917 case LINE_TREE_DIR:
3918 /* Depending on whether it is a subdirectory or parent link
3919 * mangle the path buffer. */
3920 if (line == &view->line[1] && *opt_path) {
3921 pop_tree_stack_entry();
3923 } else {
3924 const char *basename = tree_path(line);
3926 push_tree_stack_entry(basename, view->lineno);
3927 }
3929 /* Trees and subtrees share the same ID, so they are not not
3930 * unique like blobs. */
3931 flags = OPEN_RELOAD;
3932 request = REQ_VIEW_TREE;
3933 break;
3935 case LINE_TREE_FILE:
3936 flags = view_is_displayed(view) ? OPEN_SPLIT : OPEN_DEFAULT;
3937 request = REQ_VIEW_BLOB;
3938 break;
3940 default:
3941 return REQ_NONE;
3942 }
3944 open_view(view, request, flags);
3945 if (request == REQ_VIEW_TREE)
3946 view->lineno = tree_lineno;
3948 return REQ_NONE;
3949 }
3951 static bool
3952 tree_grep(struct view *view, struct line *line)
3953 {
3954 struct tree_entry *entry = line->data;
3955 const char *text[] = {
3956 entry->name,
3957 opt_author ? entry->author : "",
3958 mkdate(&entry->time, opt_date),
3959 NULL
3960 };
3962 return grep_text(view, text);
3963 }
3965 static void
3966 tree_select(struct view *view, struct line *line)
3967 {
3968 struct tree_entry *entry = line->data;
3970 if (line->type == LINE_TREE_FILE) {
3971 string_copy_rev(ref_blob, entry->id);
3972 string_format(opt_file, "%s%s", opt_path, tree_path(line));
3974 } else if (line->type != LINE_TREE_DIR) {
3975 return;
3976 }
3978 string_copy_rev(view->ref, entry->id);
3979 }
3981 static bool
3982 tree_open(struct view *view, enum open_flags flags)
3983 {
3984 static const char *tree_argv[] = {
3985 "git", "ls-tree", "%(commit)", "%(directory)", NULL
3986 };
3988 if (view->lines == 0 && opt_prefix[0]) {
3989 char *pos = opt_prefix;
3991 while (pos && *pos) {
3992 char *end = strchr(pos, '/');
3994 if (end)
3995 *end = 0;
3996 push_tree_stack_entry(pos, 0);
3997 pos = end;
3998 if (end) {
3999 *end = '/';
4000 pos++;
4001 }
4002 }
4004 } else if (strcmp(view->vid, view->id)) {
4005 opt_path[0] = 0;
4006 }
4008 return begin_update(view, opt_cdup, tree_argv, flags);
4009 }
4011 static struct view_ops tree_ops = {
4012 "file",
4013 tree_open,
4014 tree_read,
4015 tree_draw,
4016 tree_request,
4017 tree_grep,
4018 tree_select,
4019 };
4021 static bool
4022 blob_open(struct view *view, enum open_flags flags)
4023 {
4024 static const char *blob_argv[] = {
4025 "git", "cat-file", "blob", "%(blob)", NULL
4026 };
4028 return begin_update(view, NULL, blob_argv, flags);
4029 }
4031 static bool
4032 blob_read(struct view *view, char *line)
4033 {
4034 if (!line)
4035 return TRUE;
4036 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4037 }
4039 static enum request
4040 blob_request(struct view *view, enum request request, struct line *line)
4041 {
4042 switch (request) {
4043 case REQ_EDIT:
4044 open_blob_editor(view->vid);
4045 return REQ_NONE;
4046 default:
4047 return pager_request(view, request, line);
4048 }
4049 }
4051 static struct view_ops blob_ops = {
4052 "line",
4053 blob_open,
4054 blob_read,
4055 pager_draw,
4056 blob_request,
4057 pager_grep,
4058 pager_select,
4059 };
4061 /*
4062 * Blame backend
4063 *
4064 * Loading the blame view is a two phase job:
4065 *
4066 * 1. File content is read either using opt_file from the
4067 * filesystem or using git-cat-file.
4068 * 2. Then blame information is incrementally added by
4069 * reading output from git-blame.
4070 */
4072 struct blame_commit {
4073 char id[SIZEOF_REV]; /* SHA1 ID. */
4074 char title[128]; /* First line of the commit message. */
4075 const char *author; /* Author of the commit. */
4076 struct time time; /* Date from the author ident. */
4077 char filename[128]; /* Name of file. */
4078 char parent_id[SIZEOF_REV]; /* Parent/previous SHA1 ID. */
4079 char parent_filename[128]; /* Parent/previous name of file. */
4080 };
4082 struct blame {
4083 struct blame_commit *commit;
4084 unsigned long lineno;
4085 char text[1];
4086 };
4088 static bool
4089 blame_open(struct view *view, enum open_flags flags)
4090 {
4091 char path[SIZEOF_STR];
4092 size_t i;
4094 if (!view->prev && *opt_prefix) {
4095 string_copy(path, opt_file);
4096 if (!string_format(opt_file, "%s%s", opt_prefix, path))
4097 return FALSE;
4098 }
4100 if (*opt_ref || !io_open(&view->io, "%s%s", opt_cdup, opt_file)) {
4101 const char *blame_cat_file_argv[] = {
4102 "git", "cat-file", "blob", path, NULL
4103 };
4105 if (!string_format(path, "%s:%s", opt_ref, opt_file) ||
4106 !start_update(view, blame_cat_file_argv, opt_cdup))
4107 return FALSE;
4108 }
4110 /* First pass: remove multiple references to the same commit. */
4111 for (i = 0; i < view->lines; i++) {
4112 struct blame *blame = view->line[i].data;
4114 if (blame->commit && blame->commit->id[0])
4115 blame->commit->id[0] = 0;
4116 else
4117 blame->commit = NULL;
4118 }
4120 /* Second pass: free existing references. */
4121 for (i = 0; i < view->lines; i++) {
4122 struct blame *blame = view->line[i].data;
4124 if (blame->commit)
4125 free(blame->commit);
4126 }
4128 setup_update(view, opt_file);
4129 string_format(view->ref, "%s ...", opt_file);
4131 return TRUE;
4132 }
4134 static struct blame_commit *
4135 get_blame_commit(struct view *view, const char *id)
4136 {
4137 size_t i;
4139 for (i = 0; i < view->lines; i++) {
4140 struct blame *blame = view->line[i].data;
4142 if (!blame->commit)
4143 continue;
4145 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4146 return blame->commit;
4147 }
4149 {
4150 struct blame_commit *commit = calloc(1, sizeof(*commit));
4152 if (commit)
4153 string_ncopy(commit->id, id, SIZEOF_REV);
4154 return commit;
4155 }
4156 }
4158 static bool
4159 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4160 {
4161 const char *pos = *posref;
4163 *posref = NULL;
4164 pos = strchr(pos + 1, ' ');
4165 if (!pos || !isdigit(pos[1]))
4166 return FALSE;
4167 *number = atoi(pos + 1);
4168 if (*number < min || *number > max)
4169 return FALSE;
4171 *posref = pos;
4172 return TRUE;
4173 }
4175 static struct blame_commit *
4176 parse_blame_commit(struct view *view, const char *text, int *blamed)
4177 {
4178 struct blame_commit *commit;
4179 struct blame *blame;
4180 const char *pos = text + SIZEOF_REV - 2;
4181 size_t orig_lineno = 0;
4182 size_t lineno;
4183 size_t group;
4185 if (strlen(text) <= SIZEOF_REV || pos[1] != ' ')
4186 return NULL;
4188 if (!parse_number(&pos, &orig_lineno, 1, 9999999) ||
4189 !parse_number(&pos, &lineno, 1, view->lines) ||
4190 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4191 return NULL;
4193 commit = get_blame_commit(view, text);
4194 if (!commit)
4195 return NULL;
4197 *blamed += group;
4198 while (group--) {
4199 struct line *line = &view->line[lineno + group - 1];
4201 blame = line->data;
4202 blame->commit = commit;
4203 blame->lineno = orig_lineno + group - 1;
4204 line->dirty = 1;
4205 }
4207 return commit;
4208 }
4210 static bool
4211 blame_read_file(struct view *view, const char *line, bool *read_file)
4212 {
4213 if (!line) {
4214 const char *blame_argv[] = {
4215 "git", "blame", "%(blameargs)", "--incremental",
4216 *opt_ref ? opt_ref : "--incremental", "--", opt_file, NULL
4217 };
4219 if (view->lines == 0 && !view->prev)
4220 die("No blame exist for %s", view->vid);
4222 if (view->lines == 0 || !start_update(view, blame_argv, opt_cdup)) {
4223 report("Failed to load blame data");
4224 return TRUE;
4225 }
4227 *read_file = FALSE;
4228 return FALSE;
4230 } else {
4231 size_t linelen = strlen(line);
4232 struct blame *blame = malloc(sizeof(*blame) + linelen);
4234 if (!blame)
4235 return FALSE;
4237 blame->commit = NULL;
4238 strncpy(blame->text, line, linelen);
4239 blame->text[linelen] = 0;
4240 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4241 }
4242 }
4244 static bool
4245 match_blame_header(const char *name, char **line)
4246 {
4247 size_t namelen = strlen(name);
4248 bool matched = !strncmp(name, *line, namelen);
4250 if (matched)
4251 *line += namelen;
4253 return matched;
4254 }
4256 static bool
4257 blame_read(struct view *view, char *line)
4258 {
4259 static struct blame_commit *commit = NULL;
4260 static int blamed = 0;
4261 static bool read_file = TRUE;
4263 if (read_file)
4264 return blame_read_file(view, line, &read_file);
4266 if (!line) {
4267 /* Reset all! */
4268 commit = NULL;
4269 blamed = 0;
4270 read_file = TRUE;
4271 string_format(view->ref, "%s", view->vid);
4272 if (view_is_displayed(view)) {
4273 update_view_title(view);
4274 redraw_view_from(view, 0);
4275 }
4276 return TRUE;
4277 }
4279 if (!commit) {
4280 commit = parse_blame_commit(view, line, &blamed);
4281 string_format(view->ref, "%s %2d%%", view->vid,
4282 view->lines ? blamed * 100 / view->lines : 0);
4284 } else if (match_blame_header("author ", &line)) {
4285 commit->author = get_author(line);
4287 } else if (match_blame_header("author-time ", &line)) {
4288 parse_timesec(&commit->time, line);
4290 } else if (match_blame_header("author-tz ", &line)) {
4291 parse_timezone(&commit->time, line);
4293 } else if (match_blame_header("summary ", &line)) {
4294 string_ncopy(commit->title, line, strlen(line));
4296 } else if (match_blame_header("previous ", &line)) {
4297 if (strlen(line) <= SIZEOF_REV)
4298 return FALSE;
4299 string_copy_rev(commit->parent_id, line);
4300 line += SIZEOF_REV;
4301 string_ncopy(commit->parent_filename, line, strlen(line));
4303 } else if (match_blame_header("filename ", &line)) {
4304 string_ncopy(commit->filename, line, strlen(line));
4305 commit = NULL;
4306 }
4308 return TRUE;
4309 }
4311 static bool
4312 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4313 {
4314 struct blame *blame = line->data;
4315 struct time *time = NULL;
4316 const char *id = NULL, *author = NULL;
4318 if (blame->commit && *blame->commit->filename) {
4319 id = blame->commit->id;
4320 author = blame->commit->author;
4321 time = &blame->commit->time;
4322 }
4324 if (opt_date && draw_date(view, time))
4325 return TRUE;
4327 if (opt_author && draw_author(view, author))
4328 return TRUE;
4330 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4331 return TRUE;
4333 if (draw_lineno(view, lineno))
4334 return TRUE;
4336 draw_text(view, LINE_DEFAULT, blame->text);
4337 return TRUE;
4338 }
4340 static bool
4341 check_blame_commit(struct blame *blame, bool check_null_id)
4342 {
4343 if (!blame->commit)
4344 report("Commit data not loaded yet");
4345 else if (check_null_id && !strcmp(blame->commit->id, NULL_ID))
4346 report("No commit exist for the selected line");
4347 else
4348 return TRUE;
4349 return FALSE;
4350 }
4352 static void
4353 setup_blame_parent_line(struct view *view, struct blame *blame)
4354 {
4355 char from[SIZEOF_REF + SIZEOF_STR];
4356 char to[SIZEOF_REF + SIZEOF_STR];
4357 const char *diff_tree_argv[] = {
4358 "git", "diff", "--no-textconv", "--no-extdiff", "--no-color",
4359 "-U0", from, to, "--", NULL
4360 };
4361 struct io io;
4362 int parent_lineno = -1;
4363 int blamed_lineno = -1;
4364 char *line;
4366 if (!string_format(from, "%s:%s", opt_ref, opt_file) ||
4367 !string_format(to, "%s:%s", blame->commit->id, blame->commit->filename) ||
4368 !io_run(&io, IO_RD, NULL, diff_tree_argv))
4369 return;
4371 while ((line = io_get(&io, '\n', TRUE))) {
4372 if (*line == '@') {
4373 char *pos = strchr(line, '+');
4375 parent_lineno = atoi(line + 4);
4376 if (pos)
4377 blamed_lineno = atoi(pos + 1);
4379 } else if (*line == '+' && parent_lineno != -1) {
4380 if (blame->lineno == blamed_lineno - 1 &&
4381 !strcmp(blame->text, line + 1)) {
4382 view->lineno = parent_lineno ? parent_lineno - 1 : 0;
4383 break;
4384 }
4385 blamed_lineno++;
4386 }
4387 }
4389 io_done(&io);
4390 }
4392 static enum request
4393 blame_request(struct view *view, enum request request, struct line *line)
4394 {
4395 enum open_flags flags = view_is_displayed(view) ? OPEN_SPLIT : OPEN_DEFAULT;
4396 struct blame *blame = line->data;
4398 switch (request) {
4399 case REQ_VIEW_BLAME:
4400 if (check_blame_commit(blame, TRUE)) {
4401 string_copy(opt_ref, blame->commit->id);
4402 string_copy(opt_file, blame->commit->filename);
4403 if (blame->lineno)
4404 view->lineno = blame->lineno;
4405 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4406 }
4407 break;
4409 case REQ_PARENT:
4410 if (!check_blame_commit(blame, TRUE))
4411 break;
4412 if (!*blame->commit->parent_id) {
4413 report("The selected commit has no parents");
4414 } else {
4415 string_copy_rev(opt_ref, blame->commit->parent_id);
4416 string_copy(opt_file, blame->commit->parent_filename);
4417 setup_blame_parent_line(view, blame);
4418 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4419 }
4420 break;
4422 case REQ_ENTER:
4423 if (!check_blame_commit(blame, FALSE))
4424 break;
4426 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4427 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4428 break;
4430 if (!strcmp(blame->commit->id, NULL_ID)) {
4431 struct view *diff = VIEW(REQ_VIEW_DIFF);
4432 const char *diff_index_argv[] = {
4433 "git", "diff-index", "--root", "--patch-with-stat",
4434 "-C", "-M", "HEAD", "--", view->vid, NULL
4435 };
4437 if (!*blame->commit->parent_id) {
4438 diff_index_argv[1] = "diff";
4439 diff_index_argv[2] = "--no-color";
4440 diff_index_argv[6] = "--";
4441 diff_index_argv[7] = "/dev/null";
4442 }
4444 if (!prepare_update(diff, diff_index_argv, NULL)) {
4445 report("Failed to allocate diff command");
4446 break;
4447 }
4448 flags |= OPEN_PREPARED;
4449 }
4451 open_view(view, REQ_VIEW_DIFF, flags);
4452 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4453 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4454 break;
4456 default:
4457 return request;
4458 }
4460 return REQ_NONE;
4461 }
4463 static bool
4464 blame_grep(struct view *view, struct line *line)
4465 {
4466 struct blame *blame = line->data;
4467 struct blame_commit *commit = blame->commit;
4468 const char *text[] = {
4469 blame->text,
4470 commit ? commit->title : "",
4471 commit ? commit->id : "",
4472 commit && opt_author ? commit->author : "",
4473 commit ? mkdate(&commit->time, opt_date) : "",
4474 NULL
4475 };
4477 return grep_text(view, text);
4478 }
4480 static void
4481 blame_select(struct view *view, struct line *line)
4482 {
4483 struct blame *blame = line->data;
4484 struct blame_commit *commit = blame->commit;
4486 if (!commit)
4487 return;
4489 if (!strcmp(commit->id, NULL_ID))
4490 string_ncopy(ref_commit, "HEAD", 4);
4491 else
4492 string_copy_rev(ref_commit, commit->id);
4493 }
4495 static struct view_ops blame_ops = {
4496 "line",
4497 blame_open,
4498 blame_read,
4499 blame_draw,
4500 blame_request,
4501 blame_grep,
4502 blame_select,
4503 };
4505 /*
4506 * Branch backend
4507 */
4509 struct branch {
4510 const char *author; /* Author of the last commit. */
4511 struct time time; /* Date of the last activity. */
4512 const struct ref *ref; /* Name and commit ID information. */
4513 };
4515 static const struct ref branch_all;
4517 static const enum sort_field branch_sort_fields[] = {
4518 ORDERBY_NAME, ORDERBY_DATE, ORDERBY_AUTHOR
4519 };
4520 static struct sort_state branch_sort_state = SORT_STATE(branch_sort_fields);
4522 static int
4523 branch_compare(const void *l1, const void *l2)
4524 {
4525 const struct branch *branch1 = ((const struct line *) l1)->data;
4526 const struct branch *branch2 = ((const struct line *) l2)->data;
4528 switch (get_sort_field(branch_sort_state)) {
4529 case ORDERBY_DATE:
4530 return sort_order(branch_sort_state, timecmp(&branch1->time, &branch2->time));
4532 case ORDERBY_AUTHOR:
4533 return sort_order(branch_sort_state, strcmp(branch1->author, branch2->author));
4535 case ORDERBY_NAME:
4536 default:
4537 return sort_order(branch_sort_state, strcmp(branch1->ref->name, branch2->ref->name));
4538 }
4539 }
4541 static bool
4542 branch_draw(struct view *view, struct line *line, unsigned int lineno)
4543 {
4544 struct branch *branch = line->data;
4545 enum line_type type = branch->ref->head ? LINE_MAIN_HEAD : LINE_DEFAULT;
4547 if (opt_date && draw_date(view, &branch->time))
4548 return TRUE;
4550 if (opt_author && draw_author(view, branch->author))
4551 return TRUE;
4553 draw_text(view, type, branch->ref == &branch_all ? "All branches" : branch->ref->name);
4554 return TRUE;
4555 }
4557 static enum request
4558 branch_request(struct view *view, enum request request, struct line *line)
4559 {
4560 struct branch *branch = line->data;
4562 switch (request) {
4563 case REQ_REFRESH:
4564 load_refs();
4565 open_view(view, REQ_VIEW_BRANCH, OPEN_REFRESH);
4566 return REQ_NONE;
4568 case REQ_TOGGLE_SORT_FIELD:
4569 case REQ_TOGGLE_SORT_ORDER:
4570 sort_view(view, request, &branch_sort_state, branch_compare);
4571 return REQ_NONE;
4573 case REQ_ENTER:
4574 {
4575 const struct ref *ref = branch->ref;
4576 const char *all_branches_argv[] = {
4577 "git", "log", "--no-color", "--pretty=raw", "--parents",
4578 "--topo-order",
4579 ref == &branch_all ? "--all" : ref->name, NULL
4580 };
4581 struct view *main_view = VIEW(REQ_VIEW_MAIN);
4583 if (!prepare_update(main_view, all_branches_argv, NULL))
4584 report("Failed to load view of all branches");
4585 else
4586 open_view(view, REQ_VIEW_MAIN, OPEN_PREPARED | OPEN_SPLIT);
4587 return REQ_NONE;
4588 }
4589 default:
4590 return request;
4591 }
4592 }
4594 static bool
4595 branch_read(struct view *view, char *line)
4596 {
4597 static char id[SIZEOF_REV];
4598 struct branch *reference;
4599 size_t i;
4601 if (!line)
4602 return TRUE;
4604 switch (get_line_type(line)) {
4605 case LINE_COMMIT:
4606 string_copy_rev(id, line + STRING_SIZE("commit "));
4607 return TRUE;
4609 case LINE_AUTHOR:
4610 for (i = 0, reference = NULL; i < view->lines; i++) {
4611 struct branch *branch = view->line[i].data;
4613 if (strcmp(branch->ref->id, id))
4614 continue;
4616 view->line[i].dirty = TRUE;
4617 if (reference) {
4618 branch->author = reference->author;
4619 branch->time = reference->time;
4620 continue;
4621 }
4623 parse_author_line(line + STRING_SIZE("author "),
4624 &branch->author, &branch->time);
4625 reference = branch;
4626 }
4627 return TRUE;
4629 default:
4630 return TRUE;
4631 }
4633 }
4635 static bool
4636 branch_open_visitor(void *data, const struct ref *ref)
4637 {
4638 struct view *view = data;
4639 struct branch *branch;
4641 if (ref->tag || ref->ltag || ref->remote)
4642 return TRUE;
4644 branch = calloc(1, sizeof(*branch));
4645 if (!branch)
4646 return FALSE;
4648 branch->ref = ref;
4649 return !!add_line_data(view, branch, LINE_DEFAULT);
4650 }
4652 static bool
4653 branch_open(struct view *view, enum open_flags flags)
4654 {
4655 const char *branch_log[] = {
4656 "git", "log", "--no-color", "--pretty=raw",
4657 "--simplify-by-decoration", "--all", NULL
4658 };
4660 if (!start_update(view, branch_log, NULL)) {
4661 report("Failed to load branch data");
4662 return TRUE;
4663 }
4665 setup_update(view, view->id);
4666 branch_open_visitor(view, &branch_all);
4667 foreach_ref(branch_open_visitor, view);
4668 view->p_restore = TRUE;
4670 return TRUE;
4671 }
4673 static bool
4674 branch_grep(struct view *view, struct line *line)
4675 {
4676 struct branch *branch = line->data;
4677 const char *text[] = {
4678 branch->ref->name,
4679 branch->author,
4680 NULL
4681 };
4683 return grep_text(view, text);
4684 }
4686 static void
4687 branch_select(struct view *view, struct line *line)
4688 {
4689 struct branch *branch = line->data;
4691 string_copy_rev(view->ref, branch->ref->id);
4692 string_copy_rev(ref_commit, branch->ref->id);
4693 string_copy_rev(ref_head, branch->ref->id);
4694 string_copy_rev(ref_branch, branch->ref->name);
4695 }
4697 static struct view_ops branch_ops = {
4698 "branch",
4699 branch_open,
4700 branch_read,
4701 branch_draw,
4702 branch_request,
4703 branch_grep,
4704 branch_select,
4705 };
4707 /*
4708 * Status backend
4709 */
4711 struct status {
4712 char status;
4713 struct {
4714 mode_t mode;
4715 char rev[SIZEOF_REV];
4716 char name[SIZEOF_STR];
4717 } old;
4718 struct {
4719 mode_t mode;
4720 char rev[SIZEOF_REV];
4721 char name[SIZEOF_STR];
4722 } new;
4723 };
4725 static char status_onbranch[SIZEOF_STR];
4726 static struct status stage_status;
4727 static enum line_type stage_line_type;
4728 static size_t stage_chunks;
4729 static int *stage_chunk;
4731 DEFINE_ALLOCATOR(realloc_ints, int, 32)
4733 /* This should work even for the "On branch" line. */
4734 static inline bool
4735 status_has_none(struct view *view, struct line *line)
4736 {
4737 return line < view->line + view->lines && !line[1].data;
4738 }
4740 /* Get fields from the diff line:
4741 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4742 */
4743 static inline bool
4744 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4745 {
4746 const char *old_mode = buf + 1;
4747 const char *new_mode = buf + 8;
4748 const char *old_rev = buf + 15;
4749 const char *new_rev = buf + 56;
4750 const char *status = buf + 97;
4752 if (bufsize < 98 ||
4753 old_mode[-1] != ':' ||
4754 new_mode[-1] != ' ' ||
4755 old_rev[-1] != ' ' ||
4756 new_rev[-1] != ' ' ||
4757 status[-1] != ' ')
4758 return FALSE;
4760 file->status = *status;
4762 string_copy_rev(file->old.rev, old_rev);
4763 string_copy_rev(file->new.rev, new_rev);
4765 file->old.mode = strtoul(old_mode, NULL, 8);
4766 file->new.mode = strtoul(new_mode, NULL, 8);
4768 file->old.name[0] = file->new.name[0] = 0;
4770 return TRUE;
4771 }
4773 static bool
4774 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4775 {
4776 struct status *unmerged = NULL;
4777 char *buf;
4778 struct io io;
4780 if (!io_run(&io, IO_RD, opt_cdup, argv))
4781 return FALSE;
4783 add_line_data(view, NULL, type);
4785 while ((buf = io_get(&io, 0, TRUE))) {
4786 struct status *file = unmerged;
4788 if (!file) {
4789 file = calloc(1, sizeof(*file));
4790 if (!file || !add_line_data(view, file, type))
4791 goto error_out;
4792 }
4794 /* Parse diff info part. */
4795 if (status) {
4796 file->status = status;
4797 if (status == 'A')
4798 string_copy(file->old.rev, NULL_ID);
4800 } else if (!file->status || file == unmerged) {
4801 if (!status_get_diff(file, buf, strlen(buf)))
4802 goto error_out;
4804 buf = io_get(&io, 0, TRUE);
4805 if (!buf)
4806 break;
4808 /* Collapse all modified entries that follow an
4809 * associated unmerged entry. */
4810 if (unmerged == file) {
4811 unmerged->status = 'U';
4812 unmerged = NULL;
4813 } else if (file->status == 'U') {
4814 unmerged = file;
4815 }
4816 }
4818 /* Grab the old name for rename/copy. */
4819 if (!*file->old.name &&
4820 (file->status == 'R' || file->status == 'C')) {
4821 string_ncopy(file->old.name, buf, strlen(buf));
4823 buf = io_get(&io, 0, TRUE);
4824 if (!buf)
4825 break;
4826 }
4828 /* git-ls-files just delivers a NUL separated list of
4829 * file names similar to the second half of the
4830 * git-diff-* output. */
4831 string_ncopy(file->new.name, buf, strlen(buf));
4832 if (!*file->old.name)
4833 string_copy(file->old.name, file->new.name);
4834 file = NULL;
4835 }
4837 if (io_error(&io)) {
4838 error_out:
4839 io_done(&io);
4840 return FALSE;
4841 }
4843 if (!view->line[view->lines - 1].data)
4844 add_line_data(view, NULL, LINE_STAT_NONE);
4846 io_done(&io);
4847 return TRUE;
4848 }
4850 /* Don't show unmerged entries in the staged section. */
4851 static const char *status_diff_index_argv[] = {
4852 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4853 "--cached", "-M", "HEAD", NULL
4854 };
4856 static const char *status_diff_files_argv[] = {
4857 "git", "diff-files", "-z", NULL
4858 };
4860 static const char *status_list_other_argv[] = {
4861 "git", "ls-files", "-z", "--others", "--exclude-standard", opt_prefix, NULL, NULL,
4862 };
4864 static const char *status_list_no_head_argv[] = {
4865 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4866 };
4868 static const char *update_index_argv[] = {
4869 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4870 };
4872 /* Restore the previous line number to stay in the context or select a
4873 * line with something that can be updated. */
4874 static void
4875 status_restore(struct view *view)
4876 {
4877 if (view->p_lineno >= view->lines)
4878 view->p_lineno = view->lines - 1;
4879 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4880 view->p_lineno++;
4881 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4882 view->p_lineno--;
4884 /* If the above fails, always skip the "On branch" line. */
4885 if (view->p_lineno < view->lines)
4886 view->lineno = view->p_lineno;
4887 else
4888 view->lineno = 1;
4890 if (view->lineno < view->offset)
4891 view->offset = view->lineno;
4892 else if (view->offset + view->height <= view->lineno)
4893 view->offset = view->lineno - view->height + 1;
4895 view->p_restore = FALSE;
4896 }
4898 static void
4899 status_update_onbranch(void)
4900 {
4901 static const char *paths[][2] = {
4902 { "rebase-apply/rebasing", "Rebasing" },
4903 { "rebase-apply/applying", "Applying mailbox" },
4904 { "rebase-apply/", "Rebasing mailbox" },
4905 { "rebase-merge/interactive", "Interactive rebase" },
4906 { "rebase-merge/", "Rebase merge" },
4907 { "MERGE_HEAD", "Merging" },
4908 { "BISECT_LOG", "Bisecting" },
4909 { "HEAD", "On branch" },
4910 };
4911 char buf[SIZEOF_STR];
4912 struct stat stat;
4913 int i;
4915 if (is_initial_commit()) {
4916 string_copy(status_onbranch, "Initial commit");
4917 return;
4918 }
4920 for (i = 0; i < ARRAY_SIZE(paths); i++) {
4921 char *head = opt_head;
4923 if (!string_format(buf, "%s/%s", opt_git_dir, paths[i][0]) ||
4924 lstat(buf, &stat) < 0)
4925 continue;
4927 if (!*opt_head) {
4928 struct io io;
4930 if (io_open(&io, "%s/rebase-merge/head-name", opt_git_dir) &&
4931 io_read_buf(&io, buf, sizeof(buf))) {
4932 head = buf;
4933 if (!prefixcmp(head, "refs/heads/"))
4934 head += STRING_SIZE("refs/heads/");
4935 }
4936 }
4938 if (!string_format(status_onbranch, "%s %s", paths[i][1], head))
4939 string_copy(status_onbranch, opt_head);
4940 return;
4941 }
4943 string_copy(status_onbranch, "Not currently on any branch");
4944 }
4946 /* First parse staged info using git-diff-index(1), then parse unstaged
4947 * info using git-diff-files(1), and finally untracked files using
4948 * git-ls-files(1). */
4949 static bool
4950 status_open(struct view *view, enum open_flags flags)
4951 {
4952 reset_view(view);
4954 add_line_data(view, NULL, LINE_STAT_HEAD);
4955 status_update_onbranch();
4957 io_run_bg(update_index_argv);
4959 if (is_initial_commit()) {
4960 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4961 return FALSE;
4962 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4963 return FALSE;
4964 }
4966 if (!opt_untracked_dirs_content)
4967 status_list_other_argv[ARRAY_SIZE(status_list_other_argv) - 2] = "--directory";
4969 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4970 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4971 return FALSE;
4973 /* Restore the exact position or use the specialized restore
4974 * mode? */
4975 if (!view->p_restore)
4976 status_restore(view);
4977 return TRUE;
4978 }
4980 static bool
4981 status_draw(struct view *view, struct line *line, unsigned int lineno)
4982 {
4983 struct status *status = line->data;
4984 enum line_type type;
4985 const char *text;
4987 if (!status) {
4988 switch (line->type) {
4989 case LINE_STAT_STAGED:
4990 type = LINE_STAT_SECTION;
4991 text = "Changes to be committed:";
4992 break;
4994 case LINE_STAT_UNSTAGED:
4995 type = LINE_STAT_SECTION;
4996 text = "Changed but not updated:";
4997 break;
4999 case LINE_STAT_UNTRACKED:
5000 type = LINE_STAT_SECTION;
5001 text = "Untracked files:";
5002 break;
5004 case LINE_STAT_NONE:
5005 type = LINE_DEFAULT;
5006 text = " (no files)";
5007 break;
5009 case LINE_STAT_HEAD:
5010 type = LINE_STAT_HEAD;
5011 text = status_onbranch;
5012 break;
5014 default:
5015 return FALSE;
5016 }
5017 } else {
5018 static char buf[] = { '?', ' ', ' ', ' ', 0 };
5020 buf[0] = status->status;
5021 if (draw_text(view, line->type, buf))
5022 return TRUE;
5023 type = LINE_DEFAULT;
5024 text = status->new.name;
5025 }
5027 draw_text(view, type, text);
5028 return TRUE;
5029 }
5031 static enum request
5032 status_load_error(struct view *view, struct view *stage, const char *path)
5033 {
5034 if (displayed_views() == 2 || display[current_view] != view)
5035 maximize_view(view);
5036 report("Failed to load '%s': %s", path, io_strerror(&stage->io));
5037 return REQ_NONE;
5038 }
5040 static enum request
5041 status_enter(struct view *view, struct line *line)
5042 {
5043 struct status *status = line->data;
5044 const char *oldpath = status ? status->old.name : NULL;
5045 /* Diffs for unmerged entries are empty when passing the new
5046 * path, so leave it empty. */
5047 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
5048 const char *info;
5049 enum open_flags split;
5050 struct view *stage = VIEW(REQ_VIEW_STAGE);
5052 if (line->type == LINE_STAT_NONE ||
5053 (!status && line[1].type == LINE_STAT_NONE)) {
5054 report("No file to diff");
5055 return REQ_NONE;
5056 }
5058 switch (line->type) {
5059 case LINE_STAT_STAGED:
5060 if (is_initial_commit()) {
5061 const char *no_head_diff_argv[] = {
5062 "git", "diff", "--no-color", "--patch-with-stat",
5063 "--", "/dev/null", newpath, NULL
5064 };
5066 if (!prepare_update(stage, no_head_diff_argv, opt_cdup))
5067 return status_load_error(view, stage, newpath);
5068 } else {
5069 const char *index_show_argv[] = {
5070 "git", "diff-index", "--root", "--patch-with-stat",
5071 "-C", "-M", "--cached", "HEAD", "--",
5072 oldpath, newpath, NULL
5073 };
5075 if (!prepare_update(stage, index_show_argv, opt_cdup))
5076 return status_load_error(view, stage, newpath);
5077 }
5079 if (status)
5080 info = "Staged changes to %s";
5081 else
5082 info = "Staged changes";
5083 break;
5085 case LINE_STAT_UNSTAGED:
5086 {
5087 const char *files_show_argv[] = {
5088 "git", "diff-files", "--root", "--patch-with-stat",
5089 "-C", "-M", "--", oldpath, newpath, NULL
5090 };
5092 if (!prepare_update(stage, files_show_argv, opt_cdup))
5093 return status_load_error(view, stage, newpath);
5094 if (status)
5095 info = "Unstaged changes to %s";
5096 else
5097 info = "Unstaged changes";
5098 break;
5099 }
5100 case LINE_STAT_UNTRACKED:
5101 if (!newpath) {
5102 report("No file to show");
5103 return REQ_NONE;
5104 }
5106 if (!suffixcmp(status->new.name, -1, "/")) {
5107 report("Cannot display a directory");
5108 return REQ_NONE;
5109 }
5111 if (!prepare_update_file(stage, newpath))
5112 return status_load_error(view, stage, newpath);
5113 info = "Untracked file %s";
5114 break;
5116 case LINE_STAT_HEAD:
5117 return REQ_NONE;
5119 default:
5120 die("line type %d not handled in switch", line->type);
5121 }
5123 split = view_is_displayed(view) ? OPEN_SPLIT : OPEN_DEFAULT;
5124 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
5125 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
5126 if (status) {
5127 stage_status = *status;
5128 } else {
5129 memset(&stage_status, 0, sizeof(stage_status));
5130 }
5132 stage_line_type = line->type;
5133 stage_chunks = 0;
5134 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
5135 }
5137 return REQ_NONE;
5138 }
5140 static bool
5141 status_exists(struct status *status, enum line_type type)
5142 {
5143 struct view *view = VIEW(REQ_VIEW_STATUS);
5144 unsigned long lineno;
5146 for (lineno = 0; lineno < view->lines; lineno++) {
5147 struct line *line = &view->line[lineno];
5148 struct status *pos = line->data;
5150 if (line->type != type)
5151 continue;
5152 if (!pos && (!status || !status->status) && line[1].data) {
5153 select_view_line(view, lineno);
5154 return TRUE;
5155 }
5156 if (pos && !strcmp(status->new.name, pos->new.name)) {
5157 select_view_line(view, lineno);
5158 return TRUE;
5159 }
5160 }
5162 return FALSE;
5163 }
5166 static bool
5167 status_update_prepare(struct io *io, enum line_type type)
5168 {
5169 const char *staged_argv[] = {
5170 "git", "update-index", "-z", "--index-info", NULL
5171 };
5172 const char *others_argv[] = {
5173 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
5174 };
5176 switch (type) {
5177 case LINE_STAT_STAGED:
5178 return io_run(io, IO_WR, opt_cdup, staged_argv);
5180 case LINE_STAT_UNSTAGED:
5181 case LINE_STAT_UNTRACKED:
5182 return io_run(io, IO_WR, opt_cdup, others_argv);
5184 default:
5185 die("line type %d not handled in switch", type);
5186 return FALSE;
5187 }
5188 }
5190 static bool
5191 status_update_write(struct io *io, struct status *status, enum line_type type)
5192 {
5193 char buf[SIZEOF_STR];
5194 size_t bufsize = 0;
5196 switch (type) {
5197 case LINE_STAT_STAGED:
5198 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
5199 status->old.mode,
5200 status->old.rev,
5201 status->old.name, 0))
5202 return FALSE;
5203 break;
5205 case LINE_STAT_UNSTAGED:
5206 case LINE_STAT_UNTRACKED:
5207 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
5208 return FALSE;
5209 break;
5211 default:
5212 die("line type %d not handled in switch", type);
5213 }
5215 return io_write(io, buf, bufsize);
5216 }
5218 static bool
5219 status_update_file(struct status *status, enum line_type type)
5220 {
5221 struct io io;
5222 bool result;
5224 if (!status_update_prepare(&io, type))
5225 return FALSE;
5227 result = status_update_write(&io, status, type);
5228 return io_done(&io) && result;
5229 }
5231 static bool
5232 status_update_files(struct view *view, struct line *line)
5233 {
5234 char buf[sizeof(view->ref)];
5235 struct io io;
5236 bool result = TRUE;
5237 struct line *pos = view->line + view->lines;
5238 int files = 0;
5239 int file, done;
5240 int cursor_y = -1, cursor_x = -1;
5242 if (!status_update_prepare(&io, line->type))
5243 return FALSE;
5245 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5246 files++;
5248 string_copy(buf, view->ref);
5249 getsyx(cursor_y, cursor_x);
5250 for (file = 0, done = 5; result && file < files; line++, file++) {
5251 int almost_done = file * 100 / files;
5253 if (almost_done > done) {
5254 done = almost_done;
5255 string_format(view->ref, "updating file %u of %u (%d%% done)",
5256 file, files, done);
5257 update_view_title(view);
5258 setsyx(cursor_y, cursor_x);
5259 doupdate();
5260 }
5261 result = status_update_write(&io, line->data, line->type);
5262 }
5263 string_copy(view->ref, buf);
5265 return io_done(&io) && result;
5266 }
5268 static bool
5269 status_update(struct view *view)
5270 {
5271 struct line *line = &view->line[view->lineno];
5273 assert(view->lines);
5275 if (!line->data) {
5276 /* This should work even for the "On branch" line. */
5277 if (line < view->line + view->lines && !line[1].data) {
5278 report("Nothing to update");
5279 return FALSE;
5280 }
5282 if (!status_update_files(view, line + 1)) {
5283 report("Failed to update file status");
5284 return FALSE;
5285 }
5287 } else if (!status_update_file(line->data, line->type)) {
5288 report("Failed to update file status");
5289 return FALSE;
5290 }
5292 return TRUE;
5293 }
5295 static bool
5296 status_revert(struct status *status, enum line_type type, bool has_none)
5297 {
5298 if (!status || type != LINE_STAT_UNSTAGED) {
5299 if (type == LINE_STAT_STAGED) {
5300 report("Cannot revert changes to staged files");
5301 } else if (type == LINE_STAT_UNTRACKED) {
5302 report("Cannot revert changes to untracked files");
5303 } else if (has_none) {
5304 report("Nothing to revert");
5305 } else {
5306 report("Cannot revert changes to multiple files");
5307 }
5309 } else if (prompt_yesno("Are you sure you want to revert changes?")) {
5310 char mode[10] = "100644";
5311 const char *reset_argv[] = {
5312 "git", "update-index", "--cacheinfo", mode,
5313 status->old.rev, status->old.name, NULL
5314 };
5315 const char *checkout_argv[] = {
5316 "git", "checkout", "--", status->old.name, NULL
5317 };
5319 if (status->status == 'U') {
5320 string_format(mode, "%5o", status->old.mode);
5322 if (status->old.mode == 0 && status->new.mode == 0) {
5323 reset_argv[2] = "--force-remove";
5324 reset_argv[3] = status->old.name;
5325 reset_argv[4] = NULL;
5326 }
5328 if (!io_run_fg(reset_argv, opt_cdup))
5329 return FALSE;
5330 if (status->old.mode == 0 && status->new.mode == 0)
5331 return TRUE;
5332 }
5334 return io_run_fg(checkout_argv, opt_cdup);
5335 }
5337 return FALSE;
5338 }
5340 static enum request
5341 status_request(struct view *view, enum request request, struct line *line)
5342 {
5343 struct status *status = line->data;
5345 switch (request) {
5346 case REQ_STATUS_UPDATE:
5347 if (!status_update(view))
5348 return REQ_NONE;
5349 break;
5351 case REQ_STATUS_REVERT:
5352 if (!status_revert(status, line->type, status_has_none(view, line)))
5353 return REQ_NONE;
5354 break;
5356 case REQ_STATUS_MERGE:
5357 if (!status || status->status != 'U') {
5358 report("Merging only possible for files with unmerged status ('U').");
5359 return REQ_NONE;
5360 }
5361 open_mergetool(status->new.name);
5362 break;
5364 case REQ_EDIT:
5365 if (!status)
5366 return request;
5367 if (status->status == 'D') {
5368 report("File has been deleted.");
5369 return REQ_NONE;
5370 }
5372 open_editor(status->new.name);
5373 break;
5375 case REQ_VIEW_BLAME:
5376 if (status)
5377 opt_ref[0] = 0;
5378 return request;
5380 case REQ_ENTER:
5381 /* After returning the status view has been split to
5382 * show the stage view. No further reloading is
5383 * necessary. */
5384 return status_enter(view, line);
5386 case REQ_REFRESH:
5387 /* Simply reload the view. */
5388 break;
5390 default:
5391 return request;
5392 }
5394 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5396 return REQ_NONE;
5397 }
5399 static void
5400 status_select(struct view *view, struct line *line)
5401 {
5402 struct status *status = line->data;
5403 char file[SIZEOF_STR] = "all files";
5404 const char *text;
5405 const char *key;
5407 if (status && !string_format(file, "'%s'", status->new.name))
5408 return;
5410 if (!status && line[1].type == LINE_STAT_NONE)
5411 line++;
5413 switch (line->type) {
5414 case LINE_STAT_STAGED:
5415 text = "Press %s to unstage %s for commit";
5416 break;
5418 case LINE_STAT_UNSTAGED:
5419 text = "Press %s to stage %s for commit";
5420 break;
5422 case LINE_STAT_UNTRACKED:
5423 text = "Press %s to stage %s for addition";
5424 break;
5426 case LINE_STAT_HEAD:
5427 case LINE_STAT_NONE:
5428 text = "Nothing to update";
5429 break;
5431 default:
5432 die("line type %d not handled in switch", line->type);
5433 }
5435 if (status && status->status == 'U') {
5436 text = "Press %s to resolve conflict in %s";
5437 key = get_key(KEYMAP_STATUS, REQ_STATUS_MERGE);
5439 } else {
5440 key = get_key(KEYMAP_STATUS, REQ_STATUS_UPDATE);
5441 }
5443 string_format(view->ref, text, key, file);
5444 if (status)
5445 string_copy(opt_file, status->new.name);
5446 }
5448 static bool
5449 status_grep(struct view *view, struct line *line)
5450 {
5451 struct status *status = line->data;
5453 if (status) {
5454 const char buf[2] = { status->status, 0 };
5455 const char *text[] = { status->new.name, buf, NULL };
5457 return grep_text(view, text);
5458 }
5460 return FALSE;
5461 }
5463 static struct view_ops status_ops = {
5464 "file",
5465 status_open,
5466 NULL,
5467 status_draw,
5468 status_request,
5469 status_grep,
5470 status_select,
5471 };
5474 static bool
5475 stage_diff_write(struct io *io, struct line *line, struct line *end)
5476 {
5477 while (line < end) {
5478 if (!io_write(io, line->data, strlen(line->data)) ||
5479 !io_write(io, "\n", 1))
5480 return FALSE;
5481 line++;
5482 if (line->type == LINE_DIFF_CHUNK ||
5483 line->type == LINE_DIFF_HEADER)
5484 break;
5485 }
5487 return TRUE;
5488 }
5490 static struct line *
5491 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5492 {
5493 for (; view->line < line; line--)
5494 if (line->type == type)
5495 return line;
5497 return NULL;
5498 }
5500 static bool
5501 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5502 {
5503 const char *apply_argv[SIZEOF_ARG] = {
5504 "git", "apply", "--whitespace=nowarn", NULL
5505 };
5506 struct line *diff_hdr;
5507 struct io io;
5508 int argc = 3;
5510 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5511 if (!diff_hdr)
5512 return FALSE;
5514 if (!revert)
5515 apply_argv[argc++] = "--cached";
5516 if (revert || stage_line_type == LINE_STAT_STAGED)
5517 apply_argv[argc++] = "-R";
5518 apply_argv[argc++] = "-";
5519 apply_argv[argc++] = NULL;
5520 if (!io_run(&io, IO_WR, opt_cdup, apply_argv))
5521 return FALSE;
5523 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5524 !stage_diff_write(&io, chunk, view->line + view->lines))
5525 chunk = NULL;
5527 io_done(&io);
5528 io_run_bg(update_index_argv);
5530 return chunk ? TRUE : FALSE;
5531 }
5533 static bool
5534 stage_update(struct view *view, struct line *line)
5535 {
5536 struct line *chunk = NULL;
5538 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5539 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5541 if (chunk) {
5542 if (!stage_apply_chunk(view, chunk, FALSE)) {
5543 report("Failed to apply chunk");
5544 return FALSE;
5545 }
5547 } else if (!stage_status.status) {
5548 view = VIEW(REQ_VIEW_STATUS);
5550 for (line = view->line; line < view->line + view->lines; line++)
5551 if (line->type == stage_line_type)
5552 break;
5554 if (!status_update_files(view, line + 1)) {
5555 report("Failed to update files");
5556 return FALSE;
5557 }
5559 } else if (!status_update_file(&stage_status, stage_line_type)) {
5560 report("Failed to update file");
5561 return FALSE;
5562 }
5564 return TRUE;
5565 }
5567 static bool
5568 stage_revert(struct view *view, struct line *line)
5569 {
5570 struct line *chunk = NULL;
5572 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5573 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5575 if (chunk) {
5576 if (!prompt_yesno("Are you sure you want to revert changes?"))
5577 return FALSE;
5579 if (!stage_apply_chunk(view, chunk, TRUE)) {
5580 report("Failed to revert chunk");
5581 return FALSE;
5582 }
5583 return TRUE;
5585 } else {
5586 return status_revert(stage_status.status ? &stage_status : NULL,
5587 stage_line_type, FALSE);
5588 }
5589 }
5592 static void
5593 stage_next(struct view *view, struct line *line)
5594 {
5595 int i;
5597 if (!stage_chunks) {
5598 for (line = view->line; line < view->line + view->lines; line++) {
5599 if (line->type != LINE_DIFF_CHUNK)
5600 continue;
5602 if (!realloc_ints(&stage_chunk, stage_chunks, 1)) {
5603 report("Allocation failure");
5604 return;
5605 }
5607 stage_chunk[stage_chunks++] = line - view->line;
5608 }
5609 }
5611 for (i = 0; i < stage_chunks; i++) {
5612 if (stage_chunk[i] > view->lineno) {
5613 do_scroll_view(view, stage_chunk[i] - view->lineno);
5614 report("Chunk %d of %d", i + 1, stage_chunks);
5615 return;
5616 }
5617 }
5619 report("No next chunk found");
5620 }
5622 static enum request
5623 stage_request(struct view *view, enum request request, struct line *line)
5624 {
5625 switch (request) {
5626 case REQ_STATUS_UPDATE:
5627 if (!stage_update(view, line))
5628 return REQ_NONE;
5629 break;
5631 case REQ_STATUS_REVERT:
5632 if (!stage_revert(view, line))
5633 return REQ_NONE;
5634 break;
5636 case REQ_STAGE_NEXT:
5637 if (stage_line_type == LINE_STAT_UNTRACKED) {
5638 report("File is untracked; press %s to add",
5639 get_key(KEYMAP_STAGE, REQ_STATUS_UPDATE));
5640 return REQ_NONE;
5641 }
5642 stage_next(view, line);
5643 return REQ_NONE;
5645 case REQ_EDIT:
5646 if (!stage_status.new.name[0])
5647 return request;
5648 if (stage_status.status == 'D') {
5649 report("File has been deleted.");
5650 return REQ_NONE;
5651 }
5653 open_editor(stage_status.new.name);
5654 break;
5656 case REQ_REFRESH:
5657 /* Reload everything ... */
5658 break;
5660 case REQ_VIEW_BLAME:
5661 if (stage_status.new.name[0]) {
5662 string_copy(opt_file, stage_status.new.name);
5663 opt_ref[0] = 0;
5664 }
5665 return request;
5667 case REQ_ENTER:
5668 return pager_request(view, request, line);
5670 default:
5671 return request;
5672 }
5674 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5675 open_view(view, REQ_VIEW_STATUS, OPEN_REFRESH);
5677 /* Check whether the staged entry still exists, and close the
5678 * stage view if it doesn't. */
5679 if (!status_exists(&stage_status, stage_line_type)) {
5680 status_restore(VIEW(REQ_VIEW_STATUS));
5681 return REQ_VIEW_CLOSE;
5682 }
5684 if (stage_line_type == LINE_STAT_UNTRACKED) {
5685 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5686 report("Cannot display a directory");
5687 return REQ_NONE;
5688 }
5690 if (!prepare_update_file(view, stage_status.new.name)) {
5691 report("Failed to open file: %s", strerror(errno));
5692 return REQ_NONE;
5693 }
5694 }
5695 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5697 return REQ_NONE;
5698 }
5700 static struct view_ops stage_ops = {
5701 "line",
5702 view_open,
5703 pager_read,
5704 pager_draw,
5705 stage_request,
5706 pager_grep,
5707 pager_select,
5708 };
5711 /*
5712 * Revision graph
5713 */
5715 static const enum line_type graph_colors[] = {
5716 LINE_GRAPH_LINE_0,
5717 LINE_GRAPH_LINE_1,
5718 LINE_GRAPH_LINE_2,
5719 LINE_GRAPH_LINE_3,
5720 LINE_GRAPH_LINE_4,
5721 LINE_GRAPH_LINE_5,
5722 LINE_GRAPH_LINE_6,
5723 };
5725 static enum line_type get_graph_color(struct graph_symbol *symbol)
5726 {
5727 if (symbol->commit)
5728 return LINE_GRAPH_COMMIT;
5729 assert(symbol->color < ARRAY_SIZE(graph_colors));
5730 return graph_colors[symbol->color];
5731 }
5733 static bool
5734 draw_graph_utf8(struct view *view, struct graph_symbol *symbol, enum line_type color, bool first)
5735 {
5736 const char *chars = graph_symbol_to_utf8(symbol);
5738 return draw_text(view, color, chars + !!first);
5739 }
5741 static bool
5742 draw_graph_ascii(struct view *view, struct graph_symbol *symbol, enum line_type color, bool first)
5743 {
5744 const char *chars = graph_symbol_to_ascii(symbol);
5746 return draw_text(view, color, chars + !!first);
5747 }
5749 static bool
5750 draw_graph_chtype(struct view *view, struct graph_symbol *symbol, enum line_type color, bool first)
5751 {
5752 const chtype *chars = graph_symbol_to_chtype(symbol);
5754 return draw_graphic(view, color, chars + !!first, 2 - !!first, FALSE);
5755 }
5757 typedef bool (*draw_graph_fn)(struct view *, struct graph_symbol *, enum line_type, bool);
5759 static bool draw_graph(struct view *view, struct graph_canvas *canvas)
5760 {
5761 static const draw_graph_fn fns[] = {
5762 draw_graph_ascii,
5763 draw_graph_chtype,
5764 draw_graph_utf8
5765 };
5766 draw_graph_fn fn = fns[opt_line_graphics];
5767 int i;
5769 for (i = 0; i < canvas->size; i++) {
5770 struct graph_symbol *symbol = &canvas->symbols[i];
5771 enum line_type color = get_graph_color(symbol);
5773 if (fn(view, symbol, color, i == 0))
5774 return TRUE;
5775 }
5777 return draw_text(view, LINE_MAIN_REVGRAPH, " ");
5778 }
5780 /*
5781 * Main view backend
5782 */
5784 struct commit {
5785 char id[SIZEOF_REV]; /* SHA1 ID. */
5786 char title[128]; /* First line of the commit message. */
5787 const char *author; /* Author of the commit. */
5788 struct time time; /* Date from the author ident. */
5789 struct ref_list *refs; /* Repository references. */
5790 struct graph_canvas graph; /* Ancestry chain graphics. */
5791 };
5793 static bool
5794 main_open(struct view *view, enum open_flags flags)
5795 {
5796 static const char *main_argv[] = {
5797 "git", "log", "--no-color", "--pretty=raw", "--parents",
5798 "--topo-order", "%(diffargs)", "%(revargs)",
5799 "--", "%(fileargs)", NULL
5800 };
5802 return begin_update(view, NULL, main_argv, flags);
5803 }
5805 static bool
5806 main_draw(struct view *view, struct line *line, unsigned int lineno)
5807 {
5808 struct commit *commit = line->data;
5810 if (!commit->author)
5811 return FALSE;
5813 if (opt_date && draw_date(view, &commit->time))
5814 return TRUE;
5816 if (opt_author && draw_author(view, commit->author))
5817 return TRUE;
5819 if (opt_rev_graph && draw_graph(view, &commit->graph))
5820 return TRUE;
5822 if (opt_show_refs && commit->refs) {
5823 size_t i;
5825 for (i = 0; i < commit->refs->size; i++) {
5826 struct ref *ref = commit->refs->refs[i];
5827 enum line_type type;
5829 if (ref->head)
5830 type = LINE_MAIN_HEAD;
5831 else if (ref->ltag)
5832 type = LINE_MAIN_LOCAL_TAG;
5833 else if (ref->tag)
5834 type = LINE_MAIN_TAG;
5835 else if (ref->tracked)
5836 type = LINE_MAIN_TRACKED;
5837 else if (ref->remote)
5838 type = LINE_MAIN_REMOTE;
5839 else
5840 type = LINE_MAIN_REF;
5842 if (draw_text(view, type, "[") ||
5843 draw_text(view, type, ref->name) ||
5844 draw_text(view, type, "]"))
5845 return TRUE;
5847 if (draw_text(view, LINE_DEFAULT, " "))
5848 return TRUE;
5849 }
5850 }
5852 draw_text(view, LINE_DEFAULT, commit->title);
5853 return TRUE;
5854 }
5856 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5857 static bool
5858 main_read(struct view *view, char *line)
5859 {
5860 static struct graph graph;
5861 enum line_type type;
5862 struct commit *commit;
5864 if (!line) {
5865 if (!view->lines && !view->prev)
5866 die("No revisions match the given arguments.");
5867 if (view->lines > 0) {
5868 commit = view->line[view->lines - 1].data;
5869 view->line[view->lines - 1].dirty = 1;
5870 if (!commit->author) {
5871 view->lines--;
5872 free(commit);
5873 }
5874 }
5876 done_graph(&graph);
5877 return TRUE;
5878 }
5880 type = get_line_type(line);
5881 if (type == LINE_COMMIT) {
5882 bool is_boundary;
5884 commit = calloc(1, sizeof(struct commit));
5885 if (!commit)
5886 return FALSE;
5888 line += STRING_SIZE("commit ");
5889 is_boundary = *line == '-';
5890 if (is_boundary)
5891 line++;
5893 string_copy_rev(commit->id, line);
5894 commit->refs = get_ref_list(commit->id);
5895 add_line_data(view, commit, LINE_MAIN_COMMIT);
5896 graph_add_commit(&graph, &commit->graph, commit->id, line, is_boundary);
5897 return TRUE;
5898 }
5900 if (!view->lines)
5901 return TRUE;
5902 commit = view->line[view->lines - 1].data;
5904 switch (type) {
5905 case LINE_PARENT:
5906 if (!graph.has_parents)
5907 graph_add_parent(&graph, line + STRING_SIZE("parent "));
5908 break;
5910 case LINE_AUTHOR:
5911 parse_author_line(line + STRING_SIZE("author "),
5912 &commit->author, &commit->time);
5913 graph_render_parents(&graph);
5914 break;
5916 default:
5917 /* Fill in the commit title if it has not already been set. */
5918 if (commit->title[0])
5919 break;
5921 /* Require titles to start with a non-space character at the
5922 * offset used by git log. */
5923 if (strncmp(line, " ", 4))
5924 break;
5925 line += 4;
5926 /* Well, if the title starts with a whitespace character,
5927 * try to be forgiving. Otherwise we end up with no title. */
5928 while (isspace(*line))
5929 line++;
5930 if (*line == '\0')
5931 break;
5932 /* FIXME: More graceful handling of titles; append "..." to
5933 * shortened titles, etc. */
5935 string_expand(commit->title, sizeof(commit->title), line, 1);
5936 view->line[view->lines - 1].dirty = 1;
5937 }
5939 return TRUE;
5940 }
5942 static enum request
5943 main_request(struct view *view, enum request request, struct line *line)
5944 {
5945 enum open_flags flags = view_is_displayed(view) ? OPEN_SPLIT : OPEN_DEFAULT;
5947 switch (request) {
5948 case REQ_ENTER:
5949 if (view_is_displayed(view) && display[0] != view)
5950 maximize_view(view);
5951 open_view(view, REQ_VIEW_DIFF, flags);
5952 break;
5953 case REQ_REFRESH:
5954 load_refs();
5955 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5956 break;
5957 default:
5958 return request;
5959 }
5961 return REQ_NONE;
5962 }
5964 static bool
5965 grep_refs(struct ref_list *list, regex_t *regex)
5966 {
5967 regmatch_t pmatch;
5968 size_t i;
5970 if (!opt_show_refs || !list)
5971 return FALSE;
5973 for (i = 0; i < list->size; i++) {
5974 if (regexec(regex, list->refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5975 return TRUE;
5976 }
5978 return FALSE;
5979 }
5981 static bool
5982 main_grep(struct view *view, struct line *line)
5983 {
5984 struct commit *commit = line->data;
5985 const char *text[] = {
5986 commit->title,
5987 opt_author ? commit->author : "",
5988 mkdate(&commit->time, opt_date),
5989 NULL
5990 };
5992 return grep_text(view, text) || grep_refs(commit->refs, view->regex);
5993 }
5995 static void
5996 main_select(struct view *view, struct line *line)
5997 {
5998 struct commit *commit = line->data;
6000 string_copy_rev(view->ref, commit->id);
6001 string_copy_rev(ref_commit, view->ref);
6002 }
6004 static struct view_ops main_ops = {
6005 "commit",
6006 main_open,
6007 main_read,
6008 main_draw,
6009 main_request,
6010 main_grep,
6011 main_select,
6012 };
6015 /*
6016 * Status management
6017 */
6019 /* Whether or not the curses interface has been initialized. */
6020 static bool cursed = FALSE;
6022 /* Terminal hacks and workarounds. */
6023 static bool use_scroll_redrawwin;
6024 static bool use_scroll_status_wclear;
6026 /* The status window is used for polling keystrokes. */
6027 static WINDOW *status_win;
6029 /* Reading from the prompt? */
6030 static bool input_mode = FALSE;
6032 static bool status_empty = FALSE;
6034 /* Update status and title window. */
6035 static void
6036 report(const char *msg, ...)
6037 {
6038 struct view *view = display[current_view];
6040 if (input_mode)
6041 return;
6043 if (!view) {
6044 char buf[SIZEOF_STR];
6045 va_list args;
6047 va_start(args, msg);
6048 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6049 buf[sizeof(buf) - 1] = 0;
6050 buf[sizeof(buf) - 2] = '.';
6051 buf[sizeof(buf) - 3] = '.';
6052 buf[sizeof(buf) - 4] = '.';
6053 }
6054 va_end(args);
6055 die("%s", buf);
6056 }
6058 if (!status_empty || *msg) {
6059 va_list args;
6061 va_start(args, msg);
6063 wmove(status_win, 0, 0);
6064 if (view->has_scrolled && use_scroll_status_wclear)
6065 wclear(status_win);
6066 if (*msg) {
6067 vwprintw(status_win, msg, args);
6068 status_empty = FALSE;
6069 } else {
6070 status_empty = TRUE;
6071 }
6072 wclrtoeol(status_win);
6073 wnoutrefresh(status_win);
6075 va_end(args);
6076 }
6078 update_view_title(view);
6079 }
6081 static void
6082 init_display(void)
6083 {
6084 const char *term;
6085 int x, y;
6087 /* Initialize the curses library */
6088 if (isatty(STDIN_FILENO)) {
6089 cursed = !!initscr();
6090 opt_tty = stdin;
6091 } else {
6092 /* Leave stdin and stdout alone when acting as a pager. */
6093 opt_tty = fopen("/dev/tty", "r+");
6094 if (!opt_tty)
6095 die("Failed to open /dev/tty");
6096 cursed = !!newterm(NULL, opt_tty, opt_tty);
6097 }
6099 if (!cursed)
6100 die("Failed to initialize curses");
6102 nonl(); /* Disable conversion and detect newlines from input. */
6103 cbreak(); /* Take input chars one at a time, no wait for \n */
6104 noecho(); /* Don't echo input */
6105 leaveok(stdscr, FALSE);
6107 if (has_colors())
6108 init_colors();
6110 getmaxyx(stdscr, y, x);
6111 status_win = newwin(1, x, y - 1, 0);
6112 if (!status_win)
6113 die("Failed to create status window");
6115 /* Enable keyboard mapping */
6116 keypad(status_win, TRUE);
6117 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6119 #if defined(NCURSES_VERSION_PATCH) && (NCURSES_VERSION_PATCH >= 20080119)
6120 set_tabsize(opt_tab_size);
6121 #else
6122 TABSIZE = opt_tab_size;
6123 #endif
6125 term = getenv("XTERM_VERSION") ? NULL : getenv("COLORTERM");
6126 if (term && !strcmp(term, "gnome-terminal")) {
6127 /* In the gnome-terminal-emulator, the message from
6128 * scrolling up one line when impossible followed by
6129 * scrolling down one line causes corruption of the
6130 * status line. This is fixed by calling wclear. */
6131 use_scroll_status_wclear = TRUE;
6132 use_scroll_redrawwin = FALSE;
6134 } else if (term && !strcmp(term, "xrvt-xpm")) {
6135 /* No problems with full optimizations in xrvt-(unicode)
6136 * and aterm. */
6137 use_scroll_status_wclear = use_scroll_redrawwin = FALSE;
6139 } else {
6140 /* When scrolling in (u)xterm the last line in the
6141 * scrolling direction will update slowly. */
6142 use_scroll_redrawwin = TRUE;
6143 use_scroll_status_wclear = FALSE;
6144 }
6145 }
6147 static int
6148 get_input(int prompt_position)
6149 {
6150 struct view *view;
6151 int i, key, cursor_y, cursor_x;
6153 if (prompt_position)
6154 input_mode = TRUE;
6156 while (TRUE) {
6157 bool loading = FALSE;
6159 foreach_view (view, i) {
6160 update_view(view);
6161 if (view_is_displayed(view) && view->has_scrolled &&
6162 use_scroll_redrawwin)
6163 redrawwin(view->win);
6164 view->has_scrolled = FALSE;
6165 if (view->pipe)
6166 loading = TRUE;
6167 }
6169 /* Update the cursor position. */
6170 if (prompt_position) {
6171 getbegyx(status_win, cursor_y, cursor_x);
6172 cursor_x = prompt_position;
6173 } else {
6174 view = display[current_view];
6175 getbegyx(view->win, cursor_y, cursor_x);
6176 cursor_x = view->width - 1;
6177 cursor_y += view->lineno - view->offset;
6178 }
6179 setsyx(cursor_y, cursor_x);
6181 /* Refresh, accept single keystroke of input */
6182 doupdate();
6183 nodelay(status_win, loading);
6184 key = wgetch(status_win);
6186 /* wgetch() with nodelay() enabled returns ERR when
6187 * there's no input. */
6188 if (key == ERR) {
6190 } else if (key == KEY_RESIZE) {
6191 int height, width;
6193 getmaxyx(stdscr, height, width);
6195 wresize(status_win, 1, width);
6196 mvwin(status_win, height - 1, 0);
6197 wnoutrefresh(status_win);
6198 resize_display();
6199 redraw_display(TRUE);
6201 } else {
6202 input_mode = FALSE;
6203 return key;
6204 }
6205 }
6206 }
6208 static char *
6209 prompt_input(const char *prompt, input_handler handler, void *data)
6210 {
6211 enum input_status status = INPUT_OK;
6212 static char buf[SIZEOF_STR];
6213 size_t pos = 0;
6215 buf[pos] = 0;
6217 while (status == INPUT_OK || status == INPUT_SKIP) {
6218 int key;
6220 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6221 wclrtoeol(status_win);
6223 key = get_input(pos + 1);
6224 switch (key) {
6225 case KEY_RETURN:
6226 case KEY_ENTER:
6227 case '\n':
6228 status = pos ? INPUT_STOP : INPUT_CANCEL;
6229 break;
6231 case KEY_BACKSPACE:
6232 if (pos > 0)
6233 buf[--pos] = 0;
6234 else
6235 status = INPUT_CANCEL;
6236 break;
6238 case KEY_ESC:
6239 status = INPUT_CANCEL;
6240 break;
6242 default:
6243 if (pos >= sizeof(buf)) {
6244 report("Input string too long");
6245 return NULL;
6246 }
6248 status = handler(data, buf, key);
6249 if (status == INPUT_OK)
6250 buf[pos++] = (char) key;
6251 }
6252 }
6254 /* Clear the status window */
6255 status_empty = FALSE;
6256 report("");
6258 if (status == INPUT_CANCEL)
6259 return NULL;
6261 buf[pos++] = 0;
6263 return buf;
6264 }
6266 static enum input_status
6267 prompt_yesno_handler(void *data, char *buf, int c)
6268 {
6269 if (c == 'y' || c == 'Y')
6270 return INPUT_STOP;
6271 if (c == 'n' || c == 'N')
6272 return INPUT_CANCEL;
6273 return INPUT_SKIP;
6274 }
6276 static bool
6277 prompt_yesno(const char *prompt)
6278 {
6279 char prompt2[SIZEOF_STR];
6281 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6282 return FALSE;
6284 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6285 }
6287 static enum input_status
6288 read_prompt_handler(void *data, char *buf, int c)
6289 {
6290 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6291 }
6293 static char *
6294 read_prompt(const char *prompt)
6295 {
6296 return prompt_input(prompt, read_prompt_handler, NULL);
6297 }
6299 static bool prompt_menu(const char *prompt, const struct menu_item *items, int *selected)
6300 {
6301 enum input_status status = INPUT_OK;
6302 int size = 0;
6304 while (items[size].text)
6305 size++;
6307 while (status == INPUT_OK) {
6308 const struct menu_item *item = &items[*selected];
6309 int key;
6310 int i;
6312 mvwprintw(status_win, 0, 0, "%s (%d of %d) ",
6313 prompt, *selected + 1, size);
6314 if (item->hotkey)
6315 wprintw(status_win, "[%c] ", (char) item->hotkey);
6316 wprintw(status_win, "%s", item->text);
6317 wclrtoeol(status_win);
6319 key = get_input(COLS - 1);
6320 switch (key) {
6321 case KEY_RETURN:
6322 case KEY_ENTER:
6323 case '\n':
6324 status = INPUT_STOP;
6325 break;
6327 case KEY_LEFT:
6328 case KEY_UP:
6329 *selected = *selected - 1;
6330 if (*selected < 0)
6331 *selected = size - 1;
6332 break;
6334 case KEY_RIGHT:
6335 case KEY_DOWN:
6336 *selected = (*selected + 1) % size;
6337 break;
6339 case KEY_ESC:
6340 status = INPUT_CANCEL;
6341 break;
6343 default:
6344 for (i = 0; items[i].text; i++)
6345 if (items[i].hotkey == key) {
6346 *selected = i;
6347 status = INPUT_STOP;
6348 break;
6349 }
6350 }
6351 }
6353 /* Clear the status window */
6354 status_empty = FALSE;
6355 report("");
6357 return status != INPUT_CANCEL;
6358 }
6360 /*
6361 * Repository properties
6362 */
6364 static struct ref **refs = NULL;
6365 static size_t refs_size = 0;
6366 static struct ref *refs_head = NULL;
6368 static struct ref_list **ref_lists = NULL;
6369 static size_t ref_lists_size = 0;
6371 DEFINE_ALLOCATOR(realloc_refs, struct ref *, 256)
6372 DEFINE_ALLOCATOR(realloc_refs_list, struct ref *, 8)
6373 DEFINE_ALLOCATOR(realloc_ref_lists, struct ref_list *, 8)
6375 static int
6376 compare_refs(const void *ref1_, const void *ref2_)
6377 {
6378 const struct ref *ref1 = *(const struct ref **)ref1_;
6379 const struct ref *ref2 = *(const struct ref **)ref2_;
6381 if (ref1->tag != ref2->tag)
6382 return ref2->tag - ref1->tag;
6383 if (ref1->ltag != ref2->ltag)
6384 return ref2->ltag - ref2->ltag;
6385 if (ref1->head != ref2->head)
6386 return ref2->head - ref1->head;
6387 if (ref1->tracked != ref2->tracked)
6388 return ref2->tracked - ref1->tracked;
6389 if (ref1->remote != ref2->remote)
6390 return ref2->remote - ref1->remote;
6391 return strcmp(ref1->name, ref2->name);
6392 }
6394 static void
6395 foreach_ref(bool (*visitor)(void *data, const struct ref *ref), void *data)
6396 {
6397 size_t i;
6399 for (i = 0; i < refs_size; i++)
6400 if (!visitor(data, refs[i]))
6401 break;
6402 }
6404 static struct ref *
6405 get_ref_head()
6406 {
6407 return refs_head;
6408 }
6410 static struct ref_list *
6411 get_ref_list(const char *id)
6412 {
6413 struct ref_list *list;
6414 size_t i;
6416 for (i = 0; i < ref_lists_size; i++)
6417 if (!strcmp(id, ref_lists[i]->id))
6418 return ref_lists[i];
6420 if (!realloc_ref_lists(&ref_lists, ref_lists_size, 1))
6421 return NULL;
6422 list = calloc(1, sizeof(*list));
6423 if (!list)
6424 return NULL;
6426 for (i = 0; i < refs_size; i++) {
6427 if (!strcmp(id, refs[i]->id) &&
6428 realloc_refs_list(&list->refs, list->size, 1))
6429 list->refs[list->size++] = refs[i];
6430 }
6432 if (!list->refs) {
6433 free(list);
6434 return NULL;
6435 }
6437 qsort(list->refs, list->size, sizeof(*list->refs), compare_refs);
6438 ref_lists[ref_lists_size++] = list;
6439 return list;
6440 }
6442 static int
6443 read_ref(char *id, size_t idlen, char *name, size_t namelen, void *data)
6444 {
6445 struct ref *ref = NULL;
6446 bool tag = FALSE;
6447 bool ltag = FALSE;
6448 bool remote = FALSE;
6449 bool tracked = FALSE;
6450 bool head = FALSE;
6451 int from = 0, to = refs_size - 1;
6453 if (!prefixcmp(name, "refs/tags/")) {
6454 if (!suffixcmp(name, namelen, "^{}")) {
6455 namelen -= 3;
6456 name[namelen] = 0;
6457 } else {
6458 ltag = TRUE;
6459 }
6461 tag = TRUE;
6462 namelen -= STRING_SIZE("refs/tags/");
6463 name += STRING_SIZE("refs/tags/");
6465 } else if (!prefixcmp(name, "refs/remotes/")) {
6466 remote = TRUE;
6467 namelen -= STRING_SIZE("refs/remotes/");
6468 name += STRING_SIZE("refs/remotes/");
6469 tracked = !strcmp(opt_remote, name);
6471 } else if (!prefixcmp(name, "refs/heads/")) {
6472 namelen -= STRING_SIZE("refs/heads/");
6473 name += STRING_SIZE("refs/heads/");
6474 if (!strncmp(opt_head, name, namelen))
6475 return OK;
6477 } else if (!strcmp(name, "HEAD")) {
6478 head = TRUE;
6479 if (*opt_head) {
6480 namelen = strlen(opt_head);
6481 name = opt_head;
6482 }
6483 }
6485 /* If we are reloading or it's an annotated tag, replace the
6486 * previous SHA1 with the resolved commit id; relies on the fact
6487 * git-ls-remote lists the commit id of an annotated tag right
6488 * before the commit id it points to. */
6489 while (from <= to) {
6490 size_t pos = (to + from) / 2;
6491 int cmp = strcmp(name, refs[pos]->name);
6493 if (!cmp) {
6494 ref = refs[pos];
6495 break;
6496 }
6498 if (cmp < 0)
6499 to = pos - 1;
6500 else
6501 from = pos + 1;
6502 }
6504 if (!ref) {
6505 if (!realloc_refs(&refs, refs_size, 1))
6506 return ERR;
6507 ref = calloc(1, sizeof(*ref) + namelen);
6508 if (!ref)
6509 return ERR;
6510 memmove(refs + from + 1, refs + from,
6511 (refs_size - from) * sizeof(*refs));
6512 refs[from] = ref;
6513 strncpy(ref->name, name, namelen);
6514 refs_size++;
6515 }
6517 ref->head = head;
6518 ref->tag = tag;
6519 ref->ltag = ltag;
6520 ref->remote = remote;
6521 ref->tracked = tracked;
6522 string_copy_rev(ref->id, id);
6524 if (head)
6525 refs_head = ref;
6526 return OK;
6527 }
6529 static int
6530 load_refs(void)
6531 {
6532 const char *head_argv[] = {
6533 "git", "symbolic-ref", "HEAD", NULL
6534 };
6535 static const char *ls_remote_argv[SIZEOF_ARG] = {
6536 "git", "ls-remote", opt_git_dir, NULL
6537 };
6538 static bool init = FALSE;
6539 size_t i;
6541 if (!init) {
6542 if (!argv_from_env(ls_remote_argv, "TIG_LS_REMOTE"))
6543 die("TIG_LS_REMOTE contains too many arguments");
6544 init = TRUE;
6545 }
6547 if (!*opt_git_dir)
6548 return OK;
6550 if (io_run_buf(head_argv, opt_head, sizeof(opt_head)) &&
6551 !prefixcmp(opt_head, "refs/heads/")) {
6552 char *offset = opt_head + STRING_SIZE("refs/heads/");
6554 memmove(opt_head, offset, strlen(offset) + 1);
6555 }
6557 refs_head = NULL;
6558 for (i = 0; i < refs_size; i++)
6559 refs[i]->id[0] = 0;
6561 if (io_run_load(ls_remote_argv, "\t", read_ref, NULL) == ERR)
6562 return ERR;
6564 /* Update the ref lists to reflect changes. */
6565 for (i = 0; i < ref_lists_size; i++) {
6566 struct ref_list *list = ref_lists[i];
6567 size_t old, new;
6569 for (old = new = 0; old < list->size; old++)
6570 if (!strcmp(list->id, list->refs[old]->id))
6571 list->refs[new++] = list->refs[old];
6572 list->size = new;
6573 }
6575 return OK;
6576 }
6578 static void
6579 set_remote_branch(const char *name, const char *value, size_t valuelen)
6580 {
6581 if (!strcmp(name, ".remote")) {
6582 string_ncopy(opt_remote, value, valuelen);
6584 } else if (*opt_remote && !strcmp(name, ".merge")) {
6585 size_t from = strlen(opt_remote);
6587 if (!prefixcmp(value, "refs/heads/"))
6588 value += STRING_SIZE("refs/heads/");
6590 if (!string_format_from(opt_remote, &from, "/%s", value))
6591 opt_remote[0] = 0;
6592 }
6593 }
6595 static void
6596 set_repo_config_option(char *name, char *value, enum option_code (*cmd)(int, const char **))
6597 {
6598 const char *argv[SIZEOF_ARG] = { name, "=" };
6599 int argc = 1 + (cmd == option_set_command);
6600 enum option_code error;
6602 if (!argv_from_string(argv, &argc, value))
6603 error = OPT_ERR_TOO_MANY_OPTION_ARGUMENTS;
6604 else
6605 error = cmd(argc, argv);
6607 if (error != OPT_OK)
6608 warn("Option 'tig.%s': %s", name, option_errors[error]);
6609 }
6611 static bool
6612 set_environment_variable(const char *name, const char *value)
6613 {
6614 size_t len = strlen(name) + 1 + strlen(value) + 1;
6615 char *env = malloc(len);
6617 if (env &&
6618 string_nformat(env, len, NULL, "%s=%s", name, value) &&
6619 putenv(env) == 0)
6620 return TRUE;
6621 free(env);
6622 return FALSE;
6623 }
6625 static void
6626 set_work_tree(const char *value)
6627 {
6628 char cwd[SIZEOF_STR];
6630 if (!getcwd(cwd, sizeof(cwd)))
6631 die("Failed to get cwd path: %s", strerror(errno));
6632 if (chdir(opt_git_dir) < 0)
6633 die("Failed to chdir(%s): %s", strerror(errno));
6634 if (!getcwd(opt_git_dir, sizeof(opt_git_dir)))
6635 die("Failed to get git path: %s", strerror(errno));
6636 if (chdir(cwd) < 0)
6637 die("Failed to chdir(%s): %s", cwd, strerror(errno));
6638 if (chdir(value) < 0)
6639 die("Failed to chdir(%s): %s", value, strerror(errno));
6640 if (!getcwd(cwd, sizeof(cwd)))
6641 die("Failed to get cwd path: %s", strerror(errno));
6642 if (!set_environment_variable("GIT_WORK_TREE", cwd))
6643 die("Failed to set GIT_WORK_TREE to '%s'", cwd);
6644 if (!set_environment_variable("GIT_DIR", opt_git_dir))
6645 die("Failed to set GIT_DIR to '%s'", opt_git_dir);
6646 opt_is_inside_work_tree = TRUE;
6647 }
6649 static int
6650 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen, void *data)
6651 {
6652 if (!strcmp(name, "i18n.commitencoding"))
6653 string_ncopy(opt_encoding, value, valuelen);
6655 else if (!strcmp(name, "core.editor"))
6656 string_ncopy(opt_editor, value, valuelen);
6658 else if (!strcmp(name, "core.worktree"))
6659 set_work_tree(value);
6661 else if (!prefixcmp(name, "tig.color."))
6662 set_repo_config_option(name + 10, value, option_color_command);
6664 else if (!prefixcmp(name, "tig.bind."))
6665 set_repo_config_option(name + 9, value, option_bind_command);
6667 else if (!prefixcmp(name, "tig."))
6668 set_repo_config_option(name + 4, value, option_set_command);
6670 else if (*opt_head && !prefixcmp(name, "branch.") &&
6671 !strncmp(name + 7, opt_head, strlen(opt_head)))
6672 set_remote_branch(name + 7 + strlen(opt_head), value, valuelen);
6674 return OK;
6675 }
6677 static int
6678 load_git_config(void)
6679 {
6680 const char *config_list_argv[] = { "git", "config", "--list", NULL };
6682 return io_run_load(config_list_argv, "=", read_repo_config_option, NULL);
6683 }
6685 static int
6686 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen, void *data)
6687 {
6688 if (!opt_git_dir[0]) {
6689 string_ncopy(opt_git_dir, name, namelen);
6691 } else if (opt_is_inside_work_tree == -1) {
6692 /* This can be 3 different values depending on the
6693 * version of git being used. If git-rev-parse does not
6694 * understand --is-inside-work-tree it will simply echo
6695 * the option else either "true" or "false" is printed.
6696 * Default to true for the unknown case. */
6697 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6699 } else if (*name == '.') {
6700 string_ncopy(opt_cdup, name, namelen);
6702 } else {
6703 string_ncopy(opt_prefix, name, namelen);
6704 }
6706 return OK;
6707 }
6709 static int
6710 load_repo_info(void)
6711 {
6712 const char *rev_parse_argv[] = {
6713 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6714 "--show-cdup", "--show-prefix", NULL
6715 };
6717 return io_run_load(rev_parse_argv, "=", read_repo_info, NULL);
6718 }
6721 /*
6722 * Main
6723 */
6725 static const char usage[] =
6726 "tig " TIG_VERSION " (" __DATE__ ")\n"
6727 "\n"
6728 "Usage: tig [options] [revs] [--] [paths]\n"
6729 " or: tig show [options] [revs] [--] [paths]\n"
6730 " or: tig blame [options] [rev] [--] path\n"
6731 " or: tig status\n"
6732 " or: tig < [git command output]\n"
6733 "\n"
6734 "Options:\n"
6735 " -v, --version Show version and exit\n"
6736 " -h, --help Show help message and exit";
6738 static void __NORETURN
6739 quit(int sig)
6740 {
6741 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6742 if (cursed)
6743 endwin();
6744 exit(0);
6745 }
6747 static void __NORETURN
6748 die(const char *err, ...)
6749 {
6750 va_list args;
6752 endwin();
6754 va_start(args, err);
6755 fputs("tig: ", stderr);
6756 vfprintf(stderr, err, args);
6757 fputs("\n", stderr);
6758 va_end(args);
6760 exit(1);
6761 }
6763 static void
6764 warn(const char *msg, ...)
6765 {
6766 va_list args;
6768 va_start(args, msg);
6769 fputs("tig warning: ", stderr);
6770 vfprintf(stderr, msg, args);
6771 fputs("\n", stderr);
6772 va_end(args);
6773 }
6775 static int
6776 read_filter_args(char *name, size_t namelen, char *value, size_t valuelen, void *data)
6777 {
6778 const char ***filter_args = data;
6780 return argv_append(filter_args, name) ? OK : ERR;
6781 }
6783 static void
6784 filter_rev_parse(const char ***args, const char *arg1, const char *arg2, const char *argv[])
6785 {
6786 const char *rev_parse_argv[SIZEOF_ARG] = { "git", "rev-parse", arg1, arg2 };
6787 const char **all_argv = NULL;
6789 if (!argv_append_array(&all_argv, rev_parse_argv) ||
6790 !argv_append_array(&all_argv, argv) ||
6791 !io_run_load(all_argv, "\n", read_filter_args, args) == ERR)
6792 die("Failed to split arguments");
6793 argv_free(all_argv);
6794 free(all_argv);
6795 }
6797 static void
6798 filter_options(const char *argv[])
6799 {
6800 filter_rev_parse(&opt_file_argv, "--no-revs", "--no-flags", argv);
6801 filter_rev_parse(&opt_diff_argv, "--no-revs", "--flags", argv);
6802 filter_rev_parse(&opt_rev_argv, "--symbolic", "--revs-only", argv);
6803 }
6805 static enum request
6806 parse_options(int argc, const char *argv[])
6807 {
6808 enum request request = REQ_VIEW_MAIN;
6809 const char *subcommand;
6810 bool seen_dashdash = FALSE;
6811 const char **filter_argv = NULL;
6812 int i;
6814 if (!isatty(STDIN_FILENO))
6815 return REQ_VIEW_PAGER;
6817 if (argc <= 1)
6818 return REQ_VIEW_MAIN;
6820 subcommand = argv[1];
6821 if (!strcmp(subcommand, "status")) {
6822 if (argc > 2)
6823 warn("ignoring arguments after `%s'", subcommand);
6824 return REQ_VIEW_STATUS;
6826 } else if (!strcmp(subcommand, "blame")) {
6827 filter_rev_parse(&opt_file_argv, "--no-revs", "--no-flags", argv + 2);
6828 filter_rev_parse(&opt_blame_argv, "--no-revs", "--flags", argv + 2);
6829 filter_rev_parse(&opt_rev_argv, "--symbolic", "--revs-only", argv + 2);
6831 if (!opt_file_argv || opt_file_argv[1] || (opt_rev_argv && opt_rev_argv[1]))
6832 die("invalid number of options to blame\n\n%s", usage);
6834 if (opt_rev_argv) {
6835 string_ncopy(opt_ref, opt_rev_argv[0], strlen(opt_rev_argv[0]));
6836 }
6838 string_ncopy(opt_file, opt_file_argv[0], strlen(opt_file_argv[0]));
6839 return REQ_VIEW_BLAME;
6841 } else if (!strcmp(subcommand, "show")) {
6842 request = REQ_VIEW_DIFF;
6844 } else {
6845 subcommand = NULL;
6846 }
6848 for (i = 1 + !!subcommand; i < argc; i++) {
6849 const char *opt = argv[i];
6851 if (seen_dashdash) {
6852 argv_append(&opt_file_argv, opt);
6853 continue;
6855 } else if (!strcmp(opt, "--")) {
6856 seen_dashdash = TRUE;
6857 continue;
6859 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
6860 printf("tig version %s\n", TIG_VERSION);
6861 quit(0);
6863 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
6864 printf("%s\n", usage);
6865 quit(0);
6867 } else if (!strcmp(opt, "--all")) {
6868 argv_append(&opt_rev_argv, opt);
6869 continue;
6870 }
6872 if (!argv_append(&filter_argv, opt))
6873 die("command too long");
6874 }
6876 if (filter_argv)
6877 filter_options(filter_argv);
6879 return request;
6880 }
6882 int
6883 main(int argc, const char *argv[])
6884 {
6885 const char *codeset = "UTF-8";
6886 enum request request = parse_options(argc, argv);
6887 struct view *view;
6889 signal(SIGINT, quit);
6890 signal(SIGPIPE, SIG_IGN);
6892 if (setlocale(LC_ALL, "")) {
6893 codeset = nl_langinfo(CODESET);
6894 }
6896 if (load_repo_info() == ERR)
6897 die("Failed to load repo info.");
6899 if (load_options() == ERR)
6900 die("Failed to load user config.");
6902 if (load_git_config() == ERR)
6903 die("Failed to load repo config.");
6905 /* Require a git repository unless when running in pager mode. */
6906 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6907 die("Not a git repository");
6909 if (*opt_encoding && strcmp(codeset, "UTF-8")) {
6910 opt_iconv_in = iconv_open("UTF-8", opt_encoding);
6911 if (opt_iconv_in == ICONV_NONE)
6912 die("Failed to initialize character set conversion");
6913 }
6915 if (codeset && strcmp(codeset, "UTF-8")) {
6916 opt_iconv_out = iconv_open(codeset, "UTF-8");
6917 if (opt_iconv_out == ICONV_NONE)
6918 die("Failed to initialize character set conversion");
6919 }
6921 if (load_refs() == ERR)
6922 die("Failed to load refs.");
6924 init_display();
6926 while (view_driver(display[current_view], request)) {
6927 int key = get_input(0);
6929 view = display[current_view];
6930 request = get_keybinding(view->keymap, key);
6932 /* Some low-level request handling. This keeps access to
6933 * status_win restricted. */
6934 switch (request) {
6935 case REQ_NONE:
6936 report("Unknown key, press %s for help",
6937 get_key(view->keymap, REQ_VIEW_HELP));
6938 break;
6939 case REQ_PROMPT:
6940 {
6941 char *cmd = read_prompt(":");
6943 if (cmd && isdigit(*cmd)) {
6944 int lineno = view->lineno + 1;
6946 if (parse_int(&lineno, cmd, 1, view->lines + 1) == OK) {
6947 select_view_line(view, lineno - 1);
6948 report("");
6949 } else {
6950 report("Unable to parse '%s' as a line number", cmd);
6951 }
6953 } else if (cmd) {
6954 struct view *next = VIEW(REQ_VIEW_PAGER);
6955 const char *argv[SIZEOF_ARG] = { "git" };
6956 int argc = 1;
6958 /* When running random commands, initially show the
6959 * command in the title. However, it maybe later be
6960 * overwritten if a commit line is selected. */
6961 string_ncopy(next->ref, cmd, strlen(cmd));
6963 if (!argv_from_string(argv, &argc, cmd)) {
6964 report("Too many arguments");
6965 } else if (!prepare_update(next, argv, NULL)) {
6966 report("Failed to format command");
6967 } else {
6968 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6969 }
6970 }
6972 request = REQ_NONE;
6973 break;
6974 }
6975 case REQ_SEARCH:
6976 case REQ_SEARCH_BACK:
6977 {
6978 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6979 char *search = read_prompt(prompt);
6981 if (search)
6982 string_ncopy(opt_search, search, strlen(search));
6983 else if (*opt_search)
6984 request = request == REQ_SEARCH ?
6985 REQ_FIND_NEXT :
6986 REQ_FIND_PREV;
6987 else
6988 request = REQ_NONE;
6989 break;
6990 }
6991 default:
6992 break;
6993 }
6994 }
6996 quit(0);
6998 return 0;
6999 }