1 /* Copyright (c) 2006 Jonas Fonseca <fonseca@diku.dk>
2 * See license info at the bottom. */
9 * tig - text-mode interface for git
15 * tig [options] log [git log options]
16 * tig [options] diff [git diff options]
17 * tig [options] < [git log or git diff output]
21 * Browse changes in a git repository.
29 #define VERSION "tig-0.1"
44 static void die(const char *err, ...);
45 static void report(const char *msg, ...);
47 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
48 #define SIZEOF_CMD 1024 /* Size of command buffer. */
50 /* This color name can be used to refer to the default term colors. */
51 #define COLOR_DEFAULT (-1)
53 /* The format and size of the date column in the main view. */
54 #define DATE_FORMAT "%Y-%m-%d %H:%M"
55 #define DATE_COLS (STRING_SIZE("2006-04-29 14:21 "))
57 /* The default interval between line numbers. */
58 #define NUMBER_INTERVAL 1
60 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
62 #define ABS(x) ((x) >= 0 ? (x) : -(x))
63 #define MIN(x, y) ((x) < (y) ? (x) : (y))
65 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
66 #define STRING_SIZE(x) (sizeof(x) - 1)
68 /* Some ascii-shorthands that fit into the ncurses namespace. */
70 #define KEY_RETURN '\r'
73 /* User action requests. */
75 /* Offset all requests to avoid conflicts with ncurses getch values. */
76 REQ_OFFSET = KEY_MAX + 1,
78 /* XXX: Keep the view request first and in sync with views[]. */
90 REQ_TOGGLE_LINE_NUMBERS,
100 REQ_SCROLL_LINE_DOWN,
102 REQ_SCROLL_PAGE_DOWN,
106 char id[41]; /* SHA1 ID. */
107 char title[75]; /* The first line of the commit message. */
108 char author[75]; /* The author of the commit. */
109 struct tm time; /* Date from the author ident. */
114 string_ncopy(char *dst, char *src, int dstlen)
116 strncpy(dst, src, dstlen - 1);
120 /* Shorthand for safely copying into a fixed buffer. */
121 #define string_copy(dst, src) \
122 string_ncopy(dst, src, sizeof(dst))
130 static int opt_line_number = FALSE;
131 static int opt_num_interval = NUMBER_INTERVAL;
132 static int opt_request = REQ_VIEW_MAIN;
134 char ref_head[SIZEOF_REF] = "HEAD";
135 char ref_commit[SIZEOF_REF] = "HEAD";
137 /* Returns the index of log or diff command or -1 to exit. */
139 parse_options(int argc, char *argv[])
143 for (i = 1; i < argc; i++) {
153 if (!strcmp(opt, "log") ||
154 !strcmp(opt, "diff")) {
155 opt_request = opt[0] == 'l'
156 ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
161 * Start up in log view.
163 } else if (!strcmp(opt, "-l")) {
164 opt_request = REQ_VIEW_LOG;
168 * Start up in diff view.
170 } else if (!strcmp(opt, "-d")) {
171 opt_request = REQ_VIEW_DIFF;
174 * -n[INTERVAL], --line-number[=INTERVAL]::
175 * Prefix line numbers in log and diff view.
176 * Optionally, with interval different than each line.
178 } else if (!strncmp(opt, "-n", 2) ||
179 !strncmp(opt, "--line-number", 13)) {
185 } else if (opt[STRING_SIZE("--line-number")] == '=') {
186 num = opt + STRING_SIZE("--line-number=");
190 opt_num_interval = atoi(num);
196 * Show version and exit.
198 } else if (!strcmp(opt, "-v") ||
199 !strcmp(opt, "--version")) {
200 printf("tig version %s\n", VERSION);
205 * Commit reference, symbolic or raw SHA1 ID.
207 } else if (opt[0] && opt[0] != '-') {
208 string_copy(ref_head, opt);
209 string_copy(ref_commit, opt);
212 die("unknown command '%s'", opt);
233 * stop all background loading
244 #define HELP "(d)iff, (l)og, (m)ain, (q)uit, (v)ersion, (h)elp"
251 struct keymap keymap[] = {
252 /* Cursor navigation */
253 { KEY_UP, REQ_MOVE_UP },
254 { 'k', REQ_MOVE_UP },
255 { KEY_DOWN, REQ_MOVE_DOWN },
256 { 'j', REQ_MOVE_DOWN },
257 { KEY_HOME, REQ_MOVE_FIRST_LINE },
258 { KEY_END, REQ_MOVE_LAST_LINE },
259 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
260 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
263 { KEY_IC, REQ_SCROLL_LINE_UP },
264 { KEY_DC, REQ_SCROLL_LINE_DOWN },
265 { 'w', REQ_SCROLL_PAGE_UP },
266 { 's', REQ_SCROLL_PAGE_DOWN },
268 { KEY_RETURN, REQ_SHOW_COMMIT },
271 { 'm', REQ_VIEW_MAIN },
272 { 'd', REQ_VIEW_DIFF },
273 { 'l', REQ_VIEW_LOG },
274 { 'h', REQ_VIEW_HELP },
277 { KEY_ESC, REQ_QUIT },
279 { 'z', REQ_STOP_LOADING },
280 { 'v', REQ_SHOW_VERSION },
281 { 'r', REQ_SCREEN_REDRAW },
282 { 'n', REQ_TOGGLE_LINE_NUMBERS },
284 /* wgetch() with nodelay() enabled returns ERR when there's no input. */
285 { ERR, REQ_SCREEN_UPDATE },
289 get_request(int request)
293 for (i = 0; i < ARRAY_SIZE(keymap); i++)
294 if (keymap[i].alias == request)
295 return keymap[i].request;
302 * Line-oriented content detection.
304 * Line type String to match Foreground Background Attributes
305 * --------- --------------- ---------- ---------- ---------- */
308 LINE(DIFF, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
309 LINE(INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
310 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
311 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
312 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
313 LINE(DIFF_OLDMODE, "old mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
314 LINE(DIFF_NEWMODE, "new mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
315 LINE(DIFF_COPY, "copy ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
316 LINE(DIFF_RENAME, "rename ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
317 LINE(DIFF_SIM, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
318 LINE(DIFF_DISSIM, "dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
319 /* Pretty print commit header */ \
320 LINE(AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
321 LINE(MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
322 LINE(DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
323 /* Raw commit header */ \
324 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
325 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
326 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
327 LINE(AUTHOR_IDENT, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
328 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
330 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
331 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
333 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
334 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
335 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
336 LINE(TITLE, "", COLOR_WHITE, COLOR_BLUE, 0), \
337 LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
338 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
339 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
340 LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0),
343 #define LINE(type, line, fg, bg, attr) \
350 char *line; /* The start of line to match. */
351 int linelen; /* Size of string to match. */
352 int fg, bg, attr; /* Color and text attributes for the lines. */
355 static struct line_info line_info[] = {
356 #define LINE(type, line, fg, bg, attr) \
357 { (line), STRING_SIZE(line), (fg), (bg), (attr) }
362 static enum line_type
363 get_line_type(char *line)
365 int linelen = strlen(line);
368 for (type = 0; type < ARRAY_SIZE(line_info); type++)
369 /* Case insensitive search matches Signed-off-by lines better. */
370 if (linelen >= line_info[type].linelen &&
371 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
378 get_line_attr(enum line_type type)
380 assert(type < ARRAY_SIZE(line_info));
381 return COLOR_PAIR(type) | line_info[type].attr;
387 int default_bg = COLOR_BLACK;
388 int default_fg = COLOR_WHITE;
393 if (use_default_colors() != ERR) {
398 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
399 struct line_info *info = &line_info[type];
400 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
401 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
403 init_pair(type, fg, bg);
418 int (*read)(struct view *, char *);
419 int (*draw)(struct view *, unsigned int);
420 size_t objsize; /* Size of objects in the line index */
422 char cmdbuf[SIZEOF_CMD];
429 unsigned long offset; /* Offset of the window top */
430 unsigned long lineno; /* Current line number */
433 unsigned long lines; /* Total number of lines */
434 void **line; /* Line index */
441 static int pager_draw(struct view *view, unsigned int lineno);
442 static int pager_read(struct view *view, char *line);
444 static int main_draw(struct view *view, unsigned int lineno);
445 static int main_read(struct view *view, char *line);
447 static void update_title(struct view *view);
450 "git log --stat -n1 %s ; echo; " \
451 "git diff --find-copies-harder -B -C %s^ %s"
454 "git log --cc --stat -n100 %s"
457 "git log --stat --pretty=raw %s"
460 "man tig 2> /dev/null"
462 /* The status window is used for polling keystrokes. */
463 static WINDOW *status_win;
465 /* The number of loading views. Controls when nodelay should be in effect when
466 * polling user input. */
467 static unsigned int nloading;
469 static struct view views[] = {
470 { "main", MAIN_CMD, ref_head, main_read, main_draw, sizeof(struct commit) },
471 { "diff", DIFF_CMD, ref_commit, pager_read, pager_draw, sizeof(char) },
472 { "log", LOG_CMD, ref_head, pager_read, pager_draw, sizeof(char) },
473 { "help", HELP_CMD, ref_head, pager_read, pager_draw, sizeof(char) },
476 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
478 /* The display array of active views and the index of the current view. */
479 static struct view *display[ARRAY_SIZE(views)];
480 static unsigned int current_view;
482 #define foreach_view(view, i) \
483 for (i = 0; i < sizeof(display) && (view = display[i]); i++)
487 redraw_view_from(struct view *view, int lineno)
489 assert(0 <= lineno && lineno < view->height);
491 for (; lineno < view->height; lineno++) {
492 if (!view->draw(view, lineno))
496 redrawwin(view->win);
501 redraw_view(struct view *view)
504 redraw_view_from(view, 0);
508 resize_view(struct view *view)
512 getmaxyx(stdscr, lines, cols);
515 mvwin(view->win, 0, 0);
516 wresize(view->win, lines - 2, cols);
519 view->win = newwin(lines - 2, 0, 0, 0);
521 report("Failed to create %s view", view->name);
524 scrollok(view->win, TRUE);
526 view->title = newwin(1, 0, lines - 2, 0);
530 report("Failed to create title window");
533 wbkgdset(view->title, get_line_attr(LINE_TITLE));
537 getmaxyx(view->win, view->height, view->width);
547 /* Scrolling backend */
549 do_scroll_view(struct view *view, int lines)
551 /* The rendering expects the new offset. */
552 view->offset += lines;
554 assert(0 <= view->offset && view->offset < view->lines);
557 /* Redraw the whole screen if scrolling is pointless. */
558 if (view->height < ABS(lines)) {
562 int line = lines > 0 ? view->height - lines : 0;
563 int end = line + ABS(lines);
565 wscrl(view->win, lines);
567 for (; line < end; line++) {
568 if (!view->draw(view, line))
573 /* Move current line into the view. */
574 if (view->lineno < view->offset) {
575 view->lineno = view->offset;
578 } else if (view->lineno >= view->offset + view->height) {
579 view->lineno = view->offset + view->height - 1;
580 view->draw(view, view->lineno - view->offset);
583 assert(view->offset <= view->lineno && view->lineno < view->lines);
585 redrawwin(view->win);
590 /* Scroll frontend */
592 scroll_view(struct view *view, int request)
597 case REQ_SCROLL_PAGE_DOWN:
598 lines = view->height;
599 case REQ_SCROLL_LINE_DOWN:
600 if (view->offset + lines > view->lines)
601 lines = view->lines - view->offset;
603 if (lines == 0 || view->offset + view->height >= view->lines) {
604 report("Already at last line");
609 case REQ_SCROLL_PAGE_UP:
610 lines = view->height;
611 case REQ_SCROLL_LINE_UP:
612 if (lines > view->offset)
613 lines = view->offset;
616 report("Already at first line");
624 do_scroll_view(view, lines);
629 move_view(struct view *view, int request)
634 case REQ_MOVE_FIRST_LINE:
635 steps = -view->lineno;
638 case REQ_MOVE_LAST_LINE:
639 steps = view->lines - view->lineno - 1;
642 case REQ_MOVE_PAGE_UP:
643 steps = view->height > view->lineno
644 ? -view->lineno : -view->height;
647 case REQ_MOVE_PAGE_DOWN:
648 steps = view->lineno + view->height >= view->lines
649 ? view->lines - view->lineno - 1 : view->height;
661 if (steps <= 0 && view->lineno == 0) {
662 report("Already at first line");
665 } else if (steps >= 0 && view->lineno + 1 == view->lines) {
666 report("Already at last line");
670 /* Move the current line */
671 view->lineno += steps;
672 assert(0 <= view->lineno && view->lineno < view->lines);
674 /* Repaint the old "current" line if we be scrolling */
675 if (ABS(steps) < view->height) {
676 int prev_lineno = view->lineno - steps - view->offset;
678 wmove(view->win, prev_lineno, 0);
679 wclrtoeol(view->win);
680 view->draw(view, view->lineno - steps - view->offset);
683 /* Check whether the view needs to be scrolled */
684 if (view->lineno < view->offset ||
685 view->lineno >= view->offset + view->height) {
686 if (steps < 0 && -steps > view->offset) {
687 steps = -view->offset;
689 } else if (steps > 0) {
690 if (view->lineno == view->lines - 1 &&
691 view->lines > view->height) {
692 steps = view->lines - view->offset - 1;
693 if (steps >= view->height)
694 steps -= view->height - 1;
698 do_scroll_view(view, steps);
702 /* Draw the current line */
703 view->draw(view, view->lineno - view->offset);
705 redrawwin(view->win);
712 * Incremental updating
716 begin_update(struct view *view)
720 if (snprintf(view->cmdbuf, sizeof(view->cmdbuf), view->cmd,
721 id, id, id) < sizeof(view->cmdbuf))
722 view->pipe = popen(view->cmdbuf, "r");
728 nodelay(status_win, TRUE);
737 for (i = 0; i < view->lines; i++)
745 view->start_time = time(NULL);
751 end_update(struct view *view)
754 nodelay(status_win, FALSE);
761 update_view(struct view *view)
766 /* The number of lines to read. If too low it will cause too much
767 * redrawing (and possible flickering), if too high responsiveness
769 int lines = view->height;
770 int redraw_from = -1;
775 /* Only redraw if lines are visible. */
776 if (view->offset + view->height >= view->lines)
777 redraw_from = view->lines - view->offset;
779 tmp = realloc(view->line, sizeof(*view->line) * (view->lines + lines));
785 while ((line = fgets(buffer, sizeof(buffer), view->pipe))) {
788 linelen = strlen(line);
790 line[linelen - 1] = 0;
792 if (!view->read(view, line))
799 /* CPU hogilicious! */
802 if (redraw_from >= 0) {
803 /* If this is an incremental update, redraw the previous line
804 * since for commits some members could have changed when
805 * loading the main view. */
809 /* Incrementally draw avoids flickering. */
810 redraw_view_from(view, redraw_from);
813 if (ferror(view->pipe)) {
814 report("Failed to read %s: %s", view->cmd, strerror(errno));
817 } else if (feof(view->pipe)) {
818 time_t secs = time(NULL) - view->start_time;
820 if (view == VIEW(REQ_VIEW_HELP)) {
825 report("Loaded %d lines in %ld second%s", view->lines, secs,
826 secs == 1 ? "" : "s");
833 report("Allocation failure");
841 switch_view(struct view *prev, int request)
843 struct view *view = VIEW(request);
844 struct view *displayed;
847 if (!view->win && !resize_view(view))
851 foreach_view (displayed, i)
855 report("Already in %s view", view->name);
859 report("FIXME: Maximize");
863 foreach_view (displayed, i) {
864 if (view == displayed) {
866 /* Blur out the title of the previous view. */
868 report("Switching to %s view", view->name);
873 /* Split to diff view */
875 SCALE_SPLIT_VIEW(prev->height) > 3 &&
876 prev == VIEW(REQ_VIEW_MAIN) &&
877 view == VIEW(REQ_VIEW_DIFF)) {
878 view->height = SCALE_SPLIT_VIEW(prev->height) - 1;
879 prev->height -= view->height + 1;
881 wresize(prev->win, prev->height, prev->width);
882 mvwin(prev->title, prev->height, 0);
884 wresize(view->win, view->height, view->width);
885 mvwin(view->win, prev->height + 1, 0);
886 mvwin(view->title, prev->height + 1 + view->height, 0);
893 /* Continue loading split views in the background. */
894 if (prev && prev->pipe && current_view < 1)
897 if (begin_update(view)) {
898 /* Clear the old view and let the incremental updating refill
900 display[current_view] = view;
902 report("Loading...");
909 /* Process keystrokes */
911 view_driver(struct view *view, int key)
913 int request = get_request(key);
921 case REQ_MOVE_PAGE_UP:
922 case REQ_MOVE_PAGE_DOWN:
923 case REQ_MOVE_FIRST_LINE:
924 case REQ_MOVE_LAST_LINE:
925 move_view(view, request);
928 case REQ_SCROLL_LINE_DOWN:
929 case REQ_SCROLL_LINE_UP:
930 case REQ_SCROLL_PAGE_DOWN:
931 case REQ_SCROLL_PAGE_UP:
932 scroll_view(view, request);
939 view = switch_view(view, request);
942 case REQ_TOGGLE_LINE_NUMBERS:
943 opt_line_number = !opt_line_number;
947 case REQ_STOP_LOADING:
948 foreach_view (view, i)
953 case REQ_SHOW_VERSION:
954 report("Version: %s", VERSION);
957 case REQ_SCREEN_REDRAW:
961 case REQ_SCREEN_UPDATE:
969 /* An unknown key will show most commonly used commands. */
983 pager_draw(struct view *view, unsigned int lineno)
990 if (view->offset + lineno >= view->lines)
993 line = view->line[view->offset + lineno];
994 type = get_line_type(line);
996 if (view->offset + lineno == view->lineno) {
997 if (type == LINE_COMMIT)
998 string_copy(ref_commit, line + 7);
1002 attr = get_line_attr(type);
1003 wattrset(view->win, attr);
1005 linelen = strlen(line);
1006 linelen = MIN(linelen, view->width);
1008 if (opt_line_number) {
1009 unsigned int real_lineno = view->offset + lineno + 1;
1012 if (real_lineno == 1 || (real_lineno % opt_num_interval) == 0)
1013 mvwprintw(view->win, lineno, 0, "%4d: ", real_lineno);
1015 mvwaddstr(view->win, lineno, 0, " : ");
1018 if (*line == '\t') {
1019 waddnstr(view->win, " ", 8 - (col % 8));
1020 col += 8 - (col % 8);
1024 char *tab = strchr(line, '\t');
1027 waddnstr(view->win, line, tab - line);
1029 waddstr(view->win, line);
1034 waddstr(view->win, line);
1038 /* NOTE: Code for only highlighting the text on the cursor line.
1039 * Kept since I've not yet decided whether to highlight the
1040 * entire line or not. --fonseca */
1041 /* No empty lines makes cursor drawing and clearing implicit. */
1043 line = " ", linelen = 1;
1045 mvwaddnstr(view->win, lineno, 0, line, linelen);
1048 /* Paint the rest of the line if it's the cursor line. */
1049 if (type == LINE_CURSOR)
1050 wchgat(view->win, -1, 0, type, NULL);
1056 pager_read(struct view *view, char *line)
1058 view->line[view->lines] = strdup(line);
1059 if (!view->line[view->lines])
1067 main_draw(struct view *view, unsigned int lineno)
1069 char buf[DATE_COLS + 1];
1070 struct commit *commit;
1071 enum line_type type;
1075 if (view->offset + lineno >= view->lines)
1078 commit = view->line[view->offset + lineno];
1079 if (!*commit->author)
1082 if (view->offset + lineno == view->lineno) {
1083 string_copy(ref_commit, commit->id);
1086 type = LINE_MAIN_COMMIT;
1089 wmove(view->win, lineno, cols);
1090 wattrset(view->win, get_line_attr(LINE_MAIN_DATE));
1092 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time);
1093 waddnstr(view->win, buf, timelen);
1094 waddstr(view->win, " ");
1097 wmove(view->win, lineno, cols);
1098 wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR));
1100 if (strlen(commit->author) > 19) {
1101 waddnstr(view->win, commit->author, 18);
1102 wattrset(view->win, get_line_attr(LINE_MAIN_DELIM));
1103 waddch(view->win, '~');
1105 waddstr(view->win, commit->author);
1109 wattrset(view->win, A_NORMAL);
1110 mvwaddch(view->win, lineno, cols, ACS_LTEE);
1111 wattrset(view->win, get_line_attr(type));
1112 mvwaddstr(view->win, lineno, cols + 2, commit->title);
1113 wattrset(view->win, A_NORMAL);
1118 /* Reads git log --pretty=raw output and parses it into the commit struct. */
1120 main_read(struct view *view, char *line)
1122 enum line_type type = get_line_type(line);
1123 struct commit *commit;
1127 commit = calloc(1, sizeof(struct commit));
1131 line += STRING_SIZE("commit ");
1133 view->line[view->lines++] = commit;
1134 string_copy(commit->id, line);
1137 case LINE_AUTHOR_IDENT:
1139 char *ident = line + STRING_SIZE("author ");
1140 char *end = strchr(ident, '<');
1143 for (; end > ident && isspace(end[-1]); end--) ;
1147 commit = view->line[view->lines - 1];
1148 string_copy(commit->author, ident);
1150 /* Parse epoch and timezone */
1152 char *secs = strchr(end + 1, '>');
1156 if (!secs || secs[1] != ' ')
1160 time = (time_t) atol(secs);
1161 zone = strchr(secs, ' ');
1162 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
1166 tz = ('0' - zone[1]) * 60 * 60 * 10;
1167 tz += ('0' - zone[2]) * 60 * 60;
1168 tz += ('0' - zone[3]) * 60;
1169 tz += ('0' - zone[4]) * 60;
1176 gmtime_r(&time, &commit->time);
1181 /* We should only ever end up here if there has already been a
1182 * commit line, however, be safe. */
1183 if (view->lines == 0)
1186 /* Fill in the commit title if it has not already been set. */
1187 commit = view->line[view->lines - 1];
1188 if (commit->title[0])
1191 /* Require titles to start with a non-space character at the
1192 * offset used by git log. */
1193 if (strncmp(line, " ", 4) ||
1197 string_copy(commit->title, line + 4);
1215 /* FIXME: Shutdown gracefully. */
1220 static void die(const char *err, ...)
1226 va_start(args, err);
1227 fputs("tig: ", stderr);
1228 vfprintf(stderr, err, args);
1229 fputs("\n", stderr);
1236 update_title(struct view *view)
1238 werase(view->title);
1239 wmove(view->title, 0, 0);
1241 if (view == &views[current_view])
1242 wattrset(view->title, A_BOLD);
1244 wattrset(view->title, A_NORMAL);
1246 /* [main] ref: 334b506... - line 6 of 4383 (0%) */
1247 wprintw(view->title, "[%s] ref: %s", view->name, ref_commit);
1249 wprintw(view->title, " - line %d of %d (%d%%)",
1252 (view->lineno + 1) * 100 / view->lines);
1255 wrefresh(view->title);
1258 /* Update status and title window. */
1260 report(const char *msg, ...)
1264 va_start(args, msg);
1266 /* Update the title window first, so the cursor ends up in the status
1268 update_title(display[current_view]);
1271 wmove(status_win, 0, 0);
1272 vwprintw(status_win, msg, args);
1273 wrefresh(status_win);
1279 main(int argc, char *argv[])
1285 signal(SIGINT, quit);
1287 git_cmd = parse_options(argc, argv);
1290 if (git_cmd < argc) {
1291 die("Too many options");
1294 request = opt_request;
1296 initscr(); /* Initialize the curses library */
1297 nonl(); /* Tell curses not to do NL->CR/NL on output */
1298 cbreak(); /* Take input chars one at a time, no wait for \n */
1299 noecho(); /* Don't echo input */
1300 leaveok(stdscr, TRUE);
1305 getmaxyx(stdscr, y, x);
1306 status_win = newwin(1, 0, y - 1, 0);
1308 die("Failed to create status window");
1310 /* Enable keyboard mapping */
1311 keypad(status_win, TRUE);
1312 wbkgdset(status_win, get_line_attr(LINE_STATUS));
1314 while (view_driver(display[current_view], request)) {
1318 foreach_view (view, i) {
1324 /* Refresh, accept single keystroke of input */
1325 request = wgetch(status_win);
1326 if (request == KEY_RESIZE) {
1329 getmaxyx(stdscr, lines, cols);
1331 mvwin(status_win, lines - 1, 0);
1332 wresize(status_win, 1, cols - 1);
1344 * Features that should be explored.
1346 * - Dynamic scaling of line number indentation.
1348 * - Proper command line handling; ability to take the command that should be
1353 * - Internal command line (exmode-inspired) which allows to specify what git
1354 * log or git diff command to run. Example:
1358 * - Proper resizing support. I am yet to figure out whether catching SIGWINCH
1359 * is preferred over using ncurses' built-in support for resizing.
1365 * Copyright (c) Jonas Fonseca <fonseca@diku.dk>, 2006
1367 * This program is free software; you can redistribute it and/or modify
1368 * it under the terms of the GNU General Public License as published by
1369 * the Free Software Foundation; either version 2 of the License, or
1370 * (at your option) any later version.
1375 * link:http://www.kernel.org/pub/software/scm/git/docs/[git(7)],
1376 * link:http://www.kernel.org/pub/software/scm/cogito/docs/[cogito(7)]
1377 * gitk(1): git repository browser written using tcl/tk,
1378 * gitview(1): git repository browser written using python/gtk.