1 /* Copyright (c) 2006-2008 Jonas Fonseca <fonseca@diku.dk>
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.
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.
19 #define TIG_VERSION "unknown-version"
34 #include <sys/types.h>
45 /* ncurses(3): Must be defined to have extended wide-character functions. */
46 #define _XOPEN_SOURCE_EXTENDED
48 #ifdef HAVE_NCURSESW_NCURSES_H
49 #include <ncursesw/ncurses.h>
51 #ifdef HAVE_NCURSES_NCURSES_H
52 #include <ncurses/ncurses.h>
59 #define __NORETURN __attribute__((__noreturn__))
64 static void __NORETURN die(const char *err, ...);
65 static void warn(const char *msg, ...);
66 static void report(const char *msg, ...);
67 static int read_properties(FILE *pipe, const char *separators, int (*read)(char *, size_t, char *, size_t));
68 static void set_nonblocking_input(bool loading);
69 static size_t utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve);
70 static bool prompt_yesno(const char *prompt);
71 static int load_refs(void);
73 #define ABS(x) ((x) >= 0 ? (x) : -(x))
74 #define MIN(x, y) ((x) < (y) ? (x) : (y))
76 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
77 #define STRING_SIZE(x) (sizeof(x) - 1)
79 #define SIZEOF_STR 1024 /* Default string size. */
80 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
81 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL. */
82 #define SIZEOF_ARG 32 /* Default argument array size. */
86 #define REVGRAPH_INIT 'I'
87 #define REVGRAPH_MERGE 'M'
88 #define REVGRAPH_BRANCH '+'
89 #define REVGRAPH_COMMIT '*'
90 #define REVGRAPH_BOUND '^'
92 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
94 /* This color name can be used to refer to the default term colors. */
95 #define COLOR_DEFAULT (-1)
97 #define ICONV_NONE ((iconv_t) -1)
99 #define ICONV_CONST /* nothing */
102 /* The format and size of the date column in the main view. */
103 #define DATE_FORMAT "%Y-%m-%d %H:%M"
104 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
106 #define AUTHOR_COLS 20
109 /* The default interval between line numbers. */
110 #define NUMBER_INTERVAL 5
114 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
116 #define NULL_ID "0000000000000000000000000000000000000000"
119 #define GIT_CONFIG "config"
122 #define TIG_LS_REMOTE \
123 "git ls-remote . 2>/dev/null"
125 #define TIG_DIFF_CMD \
126 "git show --pretty=fuller --no-color --root --patch-with-stat --find-copies-harder -C %s 2>/dev/null"
128 #define TIG_LOG_CMD \
129 "git log --no-color --cc --stat -n100 %s 2>/dev/null"
131 #define TIG_MAIN_BASE \
132 "git log --no-color --pretty=raw --parents --topo-order"
134 #define TIG_MAIN_CMD \
135 TIG_MAIN_BASE " %s 2>/dev/null"
137 #define TIG_TREE_CMD \
140 #define TIG_BLOB_CMD \
141 "git cat-file blob %s"
143 /* XXX: Needs to be defined to the empty string. */
144 #define TIG_HELP_CMD ""
145 #define TIG_PAGER_CMD ""
146 #define TIG_STATUS_CMD ""
147 #define TIG_STAGE_CMD ""
148 #define TIG_BLAME_CMD ""
150 /* Some ascii-shorthands fitted into the ncurses namespace. */
152 #define KEY_RETURN '\r'
157 char *name; /* Ref name; tag or head names are shortened. */
158 char id[SIZEOF_REV]; /* Commit SHA1 ID */
159 unsigned int head:1; /* Is it the current HEAD? */
160 unsigned int tag:1; /* Is it a tag? */
161 unsigned int ltag:1; /* If so, is the tag local? */
162 unsigned int remote:1; /* Is it a remote ref? */
163 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
164 unsigned int next:1; /* For ref lists: are there more refs? */
167 static struct ref **get_refs(char *id);
176 set_from_int_map(struct int_map *map, size_t map_size,
177 int *value, const char *name, int namelen)
182 for (i = 0; i < map_size; i++)
183 if (namelen == map[i].namelen &&
184 !strncasecmp(name, map[i].name, namelen)) {
185 *value = map[i].value;
198 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
200 if (srclen > dstlen - 1)
203 strncpy(dst, src, srclen);
207 /* Shorthands for safely copying into a fixed buffer. */
209 #define string_copy(dst, src) \
210 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
212 #define string_ncopy(dst, src, srclen) \
213 string_ncopy_do(dst, sizeof(dst), src, srclen)
215 #define string_copy_rev(dst, src) \
216 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
218 #define string_add(dst, from, src) \
219 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
222 chomp_string(char *name)
226 while (isspace(*name))
229 namelen = strlen(name) - 1;
230 while (namelen > 0 && isspace(name[namelen]))
237 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
240 size_t pos = bufpos ? *bufpos : 0;
243 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
249 return pos >= bufsize ? FALSE : TRUE;
252 #define string_format(buf, fmt, args...) \
253 string_nformat(buf, sizeof(buf), NULL, fmt, args)
255 #define string_format_from(buf, from, fmt, args...) \
256 string_nformat(buf, sizeof(buf), from, fmt, args)
259 string_enum_compare(const char *str1, const char *str2, int len)
263 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
265 /* Diff-Header == DIFF_HEADER */
266 for (i = 0; i < len; i++) {
267 if (toupper(str1[i]) == toupper(str2[i]))
270 if (string_enum_sep(str1[i]) &&
271 string_enum_sep(str2[i]))
274 return str1[i] - str2[i];
282 * NOTE: The following is a slightly modified copy of the git project's shell
283 * quoting routines found in the quote.c file.
285 * Help to copy the thing properly quoted for the shell safety. any single
286 * quote is replaced with '\'', any exclamation point is replaced with '\!',
287 * and the whole thing is enclosed in a
290 * original sq_quote result
291 * name ==> name ==> 'name'
292 * a b ==> a b ==> 'a b'
293 * a'b ==> a'\''b ==> 'a'\''b'
294 * a!b ==> a'\!'b ==> 'a'\!'b'
298 sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src)
302 #define BUFPUT(x) do { if (bufsize < SIZEOF_STR) buf[bufsize++] = (x); } while (0)
305 while ((c = *src++)) {
306 if (c == '\'' || c == '!') {
317 if (bufsize < SIZEOF_STR)
329 /* XXX: Keep the view request first and in sync with views[]. */ \
330 REQ_GROUP("View switching") \
331 REQ_(VIEW_MAIN, "Show main view"), \
332 REQ_(VIEW_DIFF, "Show diff view"), \
333 REQ_(VIEW_LOG, "Show log view"), \
334 REQ_(VIEW_TREE, "Show tree view"), \
335 REQ_(VIEW_BLOB, "Show blob view"), \
336 REQ_(VIEW_BLAME, "Show blame view"), \
337 REQ_(VIEW_HELP, "Show help page"), \
338 REQ_(VIEW_PAGER, "Show pager view"), \
339 REQ_(VIEW_STATUS, "Show status view"), \
340 REQ_(VIEW_STAGE, "Show stage view"), \
342 REQ_GROUP("View manipulation") \
343 REQ_(ENTER, "Enter current line and scroll"), \
344 REQ_(NEXT, "Move to next"), \
345 REQ_(PREVIOUS, "Move to previous"), \
346 REQ_(VIEW_NEXT, "Move focus to next view"), \
347 REQ_(REFRESH, "Reload and refresh"), \
348 REQ_(MAXIMIZE, "Maximize the current view"), \
349 REQ_(VIEW_CLOSE, "Close the current view"), \
350 REQ_(QUIT, "Close all views and quit"), \
352 REQ_GROUP("Cursor navigation") \
353 REQ_(MOVE_UP, "Move cursor one line up"), \
354 REQ_(MOVE_DOWN, "Move cursor one line down"), \
355 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
356 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
357 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
358 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
360 REQ_GROUP("Scrolling") \
361 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
362 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
363 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
364 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
366 REQ_GROUP("Searching") \
367 REQ_(SEARCH, "Search the view"), \
368 REQ_(SEARCH_BACK, "Search backwards in the view"), \
369 REQ_(FIND_NEXT, "Find next search match"), \
370 REQ_(FIND_PREV, "Find previous search match"), \
373 REQ_(PROMPT, "Bring up the prompt"), \
374 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
375 REQ_(SCREEN_RESIZE, "Resize the screen"), \
376 REQ_(SHOW_VERSION, "Show version information"), \
377 REQ_(STOP_LOADING, "Stop all loading views"), \
378 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
379 REQ_(TOGGLE_DATE, "Toggle date display"), \
380 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
381 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
382 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
383 REQ_(STATUS_UPDATE, "Update file status"), \
384 REQ_(STATUS_CHECKOUT, "Checkout file"), \
385 REQ_(STATUS_MERGE, "Merge file using external tool"), \
386 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
387 REQ_(TREE_PARENT, "Switch to parent directory in tree view"), \
388 REQ_(EDIT, "Open in editor"), \
389 REQ_(NONE, "Do nothing")
392 /* User action requests. */
394 #define REQ_GROUP(help)
395 #define REQ_(req, help) REQ_##req
397 /* Offset all requests to avoid conflicts with ncurses getch values. */
398 REQ_OFFSET = KEY_MAX + 1,
405 struct request_info {
406 enum request request;
412 static struct request_info req_info[] = {
413 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
414 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
421 get_request(const char *name)
423 int namelen = strlen(name);
426 for (i = 0; i < ARRAY_SIZE(req_info); i++)
427 if (req_info[i].namelen == namelen &&
428 !string_enum_compare(req_info[i].name, name, namelen))
429 return req_info[i].request;
439 static const char usage[] =
440 "tig " TIG_VERSION " (" __DATE__ ")\n"
442 "Usage: tig [options] [revs] [--] [paths]\n"
443 " or: tig show [options] [revs] [--] [paths]\n"
444 " or: tig blame [rev] path\n"
446 " or: tig < [git command output]\n"
449 " -v, --version Show version and exit\n"
450 " -h, --help Show help message and exit";
452 /* Option and state variables. */
453 static bool opt_date = TRUE;
454 static bool opt_author = TRUE;
455 static bool opt_line_number = FALSE;
456 static bool opt_line_graphics = TRUE;
457 static bool opt_rev_graph = FALSE;
458 static bool opt_show_refs = TRUE;
459 static int opt_num_interval = NUMBER_INTERVAL;
460 static int opt_tab_size = TAB_SIZE;
461 static int opt_author_cols = AUTHOR_COLS-1;
462 static char opt_cmd[SIZEOF_STR] = "";
463 static char opt_path[SIZEOF_STR] = "";
464 static char opt_file[SIZEOF_STR] = "";
465 static char opt_ref[SIZEOF_REF] = "";
466 static char opt_head[SIZEOF_REF] = "";
467 static char opt_remote[SIZEOF_REF] = "";
468 static bool opt_no_head = TRUE;
469 static FILE *opt_pipe = NULL;
470 static char opt_encoding[20] = "UTF-8";
471 static bool opt_utf8 = TRUE;
472 static char opt_codeset[20] = "UTF-8";
473 static iconv_t opt_iconv = ICONV_NONE;
474 static char opt_search[SIZEOF_STR] = "";
475 static char opt_cdup[SIZEOF_STR] = "";
476 static char opt_git_dir[SIZEOF_STR] = "";
477 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
478 static char opt_editor[SIZEOF_STR] = "";
481 parse_options(int argc, char *argv[])
483 enum request request = REQ_VIEW_MAIN;
486 bool seen_dashdash = FALSE;
489 if (!isatty(STDIN_FILENO)) {
491 return REQ_VIEW_PAGER;
495 return REQ_VIEW_MAIN;
497 subcommand = argv[1];
498 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
499 if (!strcmp(subcommand, "-S"))
500 warn("`-S' has been deprecated; use `tig status' instead");
502 warn("ignoring arguments after `%s'", subcommand);
503 return REQ_VIEW_STATUS;
505 } else if (!strcmp(subcommand, "blame")) {
506 if (argc <= 2 || argc > 4)
507 die("invalid number of options to blame\n\n%s", usage);
511 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
515 string_ncopy(opt_file, argv[i], strlen(argv[i]));
516 return REQ_VIEW_BLAME;
518 } else if (!strcmp(subcommand, "show")) {
519 request = REQ_VIEW_DIFF;
521 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
522 request = subcommand[0] == 'l' ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
523 warn("`tig %s' has been deprecated", subcommand);
530 /* XXX: This is vulnerable to the user overriding
531 * options required for the main view parser. */
532 string_copy(opt_cmd, TIG_MAIN_BASE);
534 string_format(opt_cmd, "git %s", subcommand);
536 buf_size = strlen(opt_cmd);
538 for (i = 1 + !!subcommand; i < argc; i++) {
541 if (seen_dashdash || !strcmp(opt, "--")) {
542 seen_dashdash = TRUE;
544 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
545 printf("tig version %s\n", TIG_VERSION);
548 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
549 printf("%s\n", usage);
553 opt_cmd[buf_size++] = ' ';
554 buf_size = sq_quote(opt_cmd, buf_size, opt);
555 if (buf_size >= sizeof(opt_cmd))
556 die("command too long");
559 opt_cmd[buf_size] = 0;
566 * Line-oriented content detection.
570 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
571 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
572 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
573 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
574 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
575 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
576 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
577 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
578 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
579 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
580 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
581 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
582 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
583 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
584 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
585 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
586 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
587 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
588 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
589 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
590 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
591 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
592 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
593 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
594 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
595 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
596 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
597 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
598 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
599 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
600 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
601 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
602 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
603 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
604 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
605 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
606 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
607 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
608 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
609 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
610 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
611 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
612 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
613 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
614 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
615 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
616 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
617 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
618 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
619 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
620 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
621 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
622 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
623 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
626 #define LINE(type, line, fg, bg, attr) \
634 const char *name; /* Option name. */
635 int namelen; /* Size of option name. */
636 const char *line; /* The start of line to match. */
637 int linelen; /* Size of string to match. */
638 int fg, bg, attr; /* Color and text attributes for the lines. */
641 static struct line_info line_info[] = {
642 #define LINE(type, line, fg, bg, attr) \
643 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
648 static enum line_type
649 get_line_type(const char *line)
651 int linelen = strlen(line);
654 for (type = 0; type < ARRAY_SIZE(line_info); type++)
655 /* Case insensitive search matches Signed-off-by lines better. */
656 if (linelen >= line_info[type].linelen &&
657 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
664 get_line_attr(enum line_type type)
666 assert(type < ARRAY_SIZE(line_info));
667 return COLOR_PAIR(type) | line_info[type].attr;
670 static struct line_info *
671 get_line_info(const char *name)
673 size_t namelen = strlen(name);
676 for (type = 0; type < ARRAY_SIZE(line_info); type++)
677 if (namelen == line_info[type].namelen &&
678 !string_enum_compare(line_info[type].name, name, namelen))
679 return &line_info[type];
687 int default_bg = line_info[LINE_DEFAULT].bg;
688 int default_fg = line_info[LINE_DEFAULT].fg;
693 if (assume_default_colors(default_fg, default_bg) == ERR) {
694 default_bg = COLOR_BLACK;
695 default_fg = COLOR_WHITE;
698 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
699 struct line_info *info = &line_info[type];
700 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
701 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
703 init_pair(type, fg, bg);
711 unsigned int selected:1;
712 unsigned int dirty:1;
714 void *data; /* User data */
724 enum request request;
725 struct keybinding *next;
728 static struct keybinding default_keybindings[] = {
730 { 'm', REQ_VIEW_MAIN },
731 { 'd', REQ_VIEW_DIFF },
732 { 'l', REQ_VIEW_LOG },
733 { 't', REQ_VIEW_TREE },
734 { 'f', REQ_VIEW_BLOB },
735 { 'B', REQ_VIEW_BLAME },
736 { 'p', REQ_VIEW_PAGER },
737 { 'h', REQ_VIEW_HELP },
738 { 'S', REQ_VIEW_STATUS },
739 { 'c', REQ_VIEW_STAGE },
741 /* View manipulation */
742 { 'q', REQ_VIEW_CLOSE },
743 { KEY_TAB, REQ_VIEW_NEXT },
744 { KEY_RETURN, REQ_ENTER },
745 { KEY_UP, REQ_PREVIOUS },
746 { KEY_DOWN, REQ_NEXT },
747 { 'R', REQ_REFRESH },
748 { KEY_F(5), REQ_REFRESH },
749 { 'O', REQ_MAXIMIZE },
751 /* Cursor navigation */
752 { 'k', REQ_MOVE_UP },
753 { 'j', REQ_MOVE_DOWN },
754 { KEY_HOME, REQ_MOVE_FIRST_LINE },
755 { KEY_END, REQ_MOVE_LAST_LINE },
756 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
757 { ' ', REQ_MOVE_PAGE_DOWN },
758 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
759 { 'b', REQ_MOVE_PAGE_UP },
760 { '-', REQ_MOVE_PAGE_UP },
763 { KEY_IC, REQ_SCROLL_LINE_UP },
764 { KEY_DC, REQ_SCROLL_LINE_DOWN },
765 { 'w', REQ_SCROLL_PAGE_UP },
766 { 's', REQ_SCROLL_PAGE_DOWN },
770 { '?', REQ_SEARCH_BACK },
771 { 'n', REQ_FIND_NEXT },
772 { 'N', REQ_FIND_PREV },
776 { 'z', REQ_STOP_LOADING },
777 { 'v', REQ_SHOW_VERSION },
778 { 'r', REQ_SCREEN_REDRAW },
779 { '.', REQ_TOGGLE_LINENO },
780 { 'D', REQ_TOGGLE_DATE },
781 { 'A', REQ_TOGGLE_AUTHOR },
782 { 'g', REQ_TOGGLE_REV_GRAPH },
783 { 'F', REQ_TOGGLE_REFS },
785 { 'u', REQ_STATUS_UPDATE },
786 { '!', REQ_STATUS_CHECKOUT },
787 { 'M', REQ_STATUS_MERGE },
788 { '@', REQ_STAGE_NEXT },
789 { ',', REQ_TREE_PARENT },
792 /* Using the ncurses SIGWINCH handler. */
793 { KEY_RESIZE, REQ_SCREEN_RESIZE },
796 #define KEYMAP_INFO \
810 #define KEYMAP_(name) KEYMAP_##name
815 static struct int_map keymap_table[] = {
816 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
821 #define set_keymap(map, name) \
822 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
824 static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)];
827 add_keybinding(enum keymap keymap, enum request request, int key)
829 struct keybinding *keybinding;
831 keybinding = calloc(1, sizeof(*keybinding));
833 die("Failed to allocate keybinding");
835 keybinding->alias = key;
836 keybinding->request = request;
837 keybinding->next = keybindings[keymap];
838 keybindings[keymap] = keybinding;
841 /* Looks for a key binding first in the given map, then in the generic map, and
842 * lastly in the default keybindings. */
844 get_keybinding(enum keymap keymap, int key)
846 struct keybinding *kbd;
849 for (kbd = keybindings[keymap]; kbd; kbd = kbd->next)
850 if (kbd->alias == key)
853 for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next)
854 if (kbd->alias == key)
857 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
858 if (default_keybindings[i].alias == key)
859 return default_keybindings[i].request;
861 return (enum request) key;
870 static struct key key_table[] = {
871 { "Enter", KEY_RETURN },
873 { "Backspace", KEY_BACKSPACE },
875 { "Escape", KEY_ESC },
876 { "Left", KEY_LEFT },
877 { "Right", KEY_RIGHT },
879 { "Down", KEY_DOWN },
880 { "Insert", KEY_IC },
881 { "Delete", KEY_DC },
883 { "Home", KEY_HOME },
885 { "PageUp", KEY_PPAGE },
886 { "PageDown", KEY_NPAGE },
896 { "F10", KEY_F(10) },
897 { "F11", KEY_F(11) },
898 { "F12", KEY_F(12) },
902 get_key_value(const char *name)
906 for (i = 0; i < ARRAY_SIZE(key_table); i++)
907 if (!strcasecmp(key_table[i].name, name))
908 return key_table[i].value;
910 if (strlen(name) == 1 && isprint(*name))
917 get_key_name(int key_value)
919 static char key_char[] = "'X'";
923 for (key = 0; key < ARRAY_SIZE(key_table); key++)
924 if (key_table[key].value == key_value)
925 seq = key_table[key].name;
929 isprint(key_value)) {
930 key_char[1] = (char) key_value;
934 return seq ? seq : "'?'";
938 get_key(enum request request)
940 static char buf[BUFSIZ];
947 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
948 struct keybinding *keybinding = &default_keybindings[i];
950 if (keybinding->request != request)
953 if (!string_format_from(buf, &pos, "%s%s", sep,
954 get_key_name(keybinding->alias)))
955 return "Too many keybindings!";
965 char cmd[SIZEOF_STR];
968 static struct run_request *run_request;
969 static size_t run_requests;
972 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
974 struct run_request *req;
975 char cmd[SIZEOF_STR];
978 for (bufpos = 0; argc > 0; argc--, argv++)
979 if (!string_format_from(cmd, &bufpos, "%s ", *argv))
982 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
987 req = &run_request[run_requests++];
988 string_copy(req->cmd, cmd);
989 req->keymap = keymap;
992 return REQ_NONE + run_requests;
995 static struct run_request *
996 get_run_request(enum request request)
998 if (request <= REQ_NONE)
1000 return &run_request[request - REQ_NONE - 1];
1004 add_builtin_run_requests(void)
1009 const char *argv[1];
1011 { KEYMAP_MAIN, 'C', { "git cherry-pick %(commit)" } },
1012 { KEYMAP_GENERIC, 'G', { "git gc" } },
1016 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1019 req = add_run_request(reqs[i].keymap, reqs[i].key, 1, reqs[i].argv);
1020 if (req != REQ_NONE)
1021 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1026 * User config file handling.
1029 static struct int_map color_map[] = {
1030 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1042 #define set_color(color, name) \
1043 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1045 static struct int_map attr_map[] = {
1046 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1053 ATTR_MAP(UNDERLINE),
1056 #define set_attribute(attr, name) \
1057 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1059 static int config_lineno;
1060 static bool config_errors;
1061 static char *config_msg;
1063 /* Wants: object fgcolor bgcolor [attr] */
1065 option_color_command(int argc, const char *argv[])
1067 struct line_info *info;
1069 if (argc != 3 && argc != 4) {
1070 config_msg = "Wrong number of arguments given to color command";
1074 info = get_line_info(argv[0]);
1076 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1077 info = get_line_info("delimiter");
1079 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1080 info = get_line_info("date");
1083 config_msg = "Unknown color name";
1088 if (set_color(&info->fg, argv[1]) == ERR ||
1089 set_color(&info->bg, argv[2]) == ERR) {
1090 config_msg = "Unknown color";
1094 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1095 config_msg = "Unknown attribute";
1102 static bool parse_bool(const char *s)
1104 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1105 !strcmp(s, "yes")) ? TRUE : FALSE;
1109 parse_int(const char *s, int default_value, int min, int max)
1111 int value = atoi(s);
1113 return (value < min || value > max) ? default_value : value;
1116 /* Wants: name = value */
1118 option_set_command(int argc, const char *argv[])
1121 config_msg = "Wrong number of arguments given to set command";
1125 if (strcmp(argv[1], "=")) {
1126 config_msg = "No value assigned";
1130 if (!strcmp(argv[0], "show-author")) {
1131 opt_author = parse_bool(argv[2]);
1135 if (!strcmp(argv[0], "show-date")) {
1136 opt_date = parse_bool(argv[2]);
1140 if (!strcmp(argv[0], "show-rev-graph")) {
1141 opt_rev_graph = parse_bool(argv[2]);
1145 if (!strcmp(argv[0], "show-refs")) {
1146 opt_show_refs = parse_bool(argv[2]);
1150 if (!strcmp(argv[0], "show-line-numbers")) {
1151 opt_line_number = parse_bool(argv[2]);
1155 if (!strcmp(argv[0], "line-graphics")) {
1156 opt_line_graphics = parse_bool(argv[2]);
1160 if (!strcmp(argv[0], "line-number-interval")) {
1161 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1165 if (!strcmp(argv[0], "author-width")) {
1166 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1170 if (!strcmp(argv[0], "tab-size")) {
1171 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1175 if (!strcmp(argv[0], "commit-encoding")) {
1176 const char *arg = argv[2];
1177 int arglen = strlen(arg);
1182 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1183 config_msg = "Unmatched quotation";
1186 arg += 1; arglen -= 2;
1188 string_ncopy(opt_encoding, arg, strlen(arg));
1193 config_msg = "Unknown variable name";
1197 /* Wants: mode request key */
1199 option_bind_command(int argc, const char *argv[])
1201 enum request request;
1206 config_msg = "Wrong number of arguments given to bind command";
1210 if (set_keymap(&keymap, argv[0]) == ERR) {
1211 config_msg = "Unknown key map";
1215 key = get_key_value(argv[1]);
1217 config_msg = "Unknown key";
1221 request = get_request(argv[2]);
1222 if (request == REQ_NONE) {
1223 const char *obsolete[] = { "cherry-pick" };
1224 size_t namelen = strlen(argv[2]);
1227 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1228 if (namelen == strlen(obsolete[i]) &&
1229 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1230 config_msg = "Obsolete request name";
1235 if (request == REQ_NONE && *argv[2]++ == '!')
1236 request = add_run_request(keymap, key, argc - 2, argv + 2);
1237 if (request == REQ_NONE) {
1238 config_msg = "Unknown request name";
1242 add_keybinding(keymap, request, key);
1248 set_option(char *opt, char *value)
1250 const char *argv[SIZEOF_ARG];
1255 while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) {
1256 argv[argc++] = value;
1259 /* Nothing more to tokenize or last available token. */
1260 if (!*value || argc >= ARRAY_SIZE(argv))
1264 while (isspace(*value))
1268 if (!strcmp(opt, "color"))
1269 return option_color_command(argc, argv);
1271 if (!strcmp(opt, "set"))
1272 return option_set_command(argc, argv);
1274 if (!strcmp(opt, "bind"))
1275 return option_bind_command(argc, argv);
1277 config_msg = "Unknown option command";
1282 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1287 config_msg = "Internal error";
1289 /* Check for comment markers, since read_properties() will
1290 * only ensure opt and value are split at first " \t". */
1291 optlen = strcspn(opt, "#");
1295 if (opt[optlen] != 0) {
1296 config_msg = "No option value";
1300 /* Look for comment endings in the value. */
1301 size_t len = strcspn(value, "#");
1303 if (len < valuelen) {
1305 value[valuelen] = 0;
1308 status = set_option(opt, value);
1311 if (status == ERR) {
1312 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1313 config_lineno, (int) optlen, opt, config_msg);
1314 config_errors = TRUE;
1317 /* Always keep going if errors are encountered. */
1322 load_option_file(const char *path)
1326 /* It's ok that the file doesn't exist. */
1327 file = fopen(path, "r");
1332 config_errors = FALSE;
1334 if (read_properties(file, " \t", read_option) == ERR ||
1335 config_errors == TRUE)
1336 fprintf(stderr, "Errors while loading %s.\n", path);
1342 char *home = getenv("HOME");
1343 char *tigrc_user = getenv("TIGRC_USER");
1344 char *tigrc_system = getenv("TIGRC_SYSTEM");
1345 char buf[SIZEOF_STR];
1347 add_builtin_run_requests();
1349 if (!tigrc_system) {
1350 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1354 load_option_file(tigrc_system);
1357 if (!home || !string_format(buf, "%s/.tigrc", home))
1361 load_option_file(tigrc_user);
1374 /* The display array of active views and the index of the current view. */
1375 static struct view *display[2];
1376 static unsigned int current_view;
1378 /* Reading from the prompt? */
1379 static bool input_mode = FALSE;
1381 #define foreach_displayed_view(view, i) \
1382 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1384 #define displayed_views() (display[1] != NULL ? 2 : 1)
1386 /* Current head and commit ID */
1387 static char ref_blob[SIZEOF_REF] = "";
1388 static char ref_commit[SIZEOF_REF] = "HEAD";
1389 static char ref_head[SIZEOF_REF] = "HEAD";
1392 const char *name; /* View name */
1393 const char *cmd_fmt; /* Default command line format */
1394 const char *cmd_env; /* Command line set via environment */
1395 const char *id; /* Points to either of ref_{head,commit,blob} */
1397 struct view_ops *ops; /* View operations */
1399 enum keymap keymap; /* What keymap does this view have */
1400 bool git_dir; /* Whether the view requires a git directory. */
1402 char cmd[SIZEOF_STR]; /* Command buffer */
1403 char ref[SIZEOF_REF]; /* Hovered commit reference */
1404 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1406 int height, width; /* The width and height of the main window */
1407 WINDOW *win; /* The main window */
1408 WINDOW *title; /* The title window living below the main window */
1411 unsigned long offset; /* Offset of the window top */
1412 unsigned long lineno; /* Current line number */
1415 char grep[SIZEOF_STR]; /* Search string */
1416 regex_t *regex; /* Pre-compiled regex */
1418 /* If non-NULL, points to the view that opened this view. If this view
1419 * is closed tig will switch back to the parent view. */
1420 struct view *parent;
1423 size_t lines; /* Total number of lines */
1424 struct line *line; /* Line index */
1425 size_t line_alloc; /* Total number of allocated lines */
1426 size_t line_size; /* Total number of used lines */
1427 unsigned int digits; /* Number of digits in the lines member. */
1430 struct line *curline; /* Line currently being drawn. */
1431 enum line_type curtype; /* Attribute currently used for drawing. */
1432 unsigned long col; /* Column when drawing. */
1440 /* What type of content being displayed. Used in the title bar. */
1442 /* Open and reads in all view content. */
1443 bool (*open)(struct view *view);
1444 /* Read one line; updates view->line. */
1445 bool (*read)(struct view *view, char *data);
1446 /* Draw one line; @lineno must be < view->height. */
1447 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1448 /* Depending on view handle a special requests. */
1449 enum request (*request)(struct view *view, enum request request, struct line *line);
1450 /* Search for regex in a line. */
1451 bool (*grep)(struct view *view, struct line *line);
1453 void (*select)(struct view *view, struct line *line);
1456 static struct view_ops blame_ops;
1457 static struct view_ops blob_ops;
1458 static struct view_ops help_ops;
1459 static struct view_ops log_ops;
1460 static struct view_ops main_ops;
1461 static struct view_ops pager_ops;
1462 static struct view_ops stage_ops;
1463 static struct view_ops status_ops;
1464 static struct view_ops tree_ops;
1466 #define VIEW_STR(name, cmd, env, ref, ops, map, git) \
1467 { name, cmd, #env, ref, ops, map, git }
1469 #define VIEW_(id, name, ops, git, ref) \
1470 VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1473 static struct view views[] = {
1474 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1475 VIEW_(DIFF, "diff", &pager_ops, TRUE, ref_commit),
1476 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1477 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1478 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1479 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1480 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1481 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1482 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1483 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1486 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1487 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1489 #define foreach_view(view, i) \
1490 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1492 #define view_is_displayed(view) \
1493 (view == display[0] || view == display[1])
1500 static int line_graphics[] = {
1501 /* LINE_GRAPHIC_VLINE: */ '|'
1505 set_view_attr(struct view *view, enum line_type type)
1507 if (!view->curline->selected && view->curtype != type) {
1508 wattrset(view->win, get_line_attr(type));
1509 wchgat(view->win, -1, 0, type, NULL);
1510 view->curtype = type;
1515 draw_chars(struct view *view, enum line_type type, const char *string,
1516 int max_len, bool use_tilde)
1520 int trimmed = FALSE;
1526 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1528 col = len = strlen(string);
1529 if (len > max_len) {
1533 col = len = max_len;
1538 set_view_attr(view, type);
1539 waddnstr(view->win, string, len);
1540 if (trimmed && use_tilde) {
1541 set_view_attr(view, LINE_DELIMITER);
1542 waddch(view->win, '~');
1550 draw_space(struct view *view, enum line_type type, int max, int spaces)
1552 static char space[] = " ";
1555 spaces = MIN(max, spaces);
1557 while (spaces > 0) {
1558 int len = MIN(spaces, sizeof(space) - 1);
1560 col += draw_chars(view, type, space, spaces, FALSE);
1568 draw_lineno(struct view *view, unsigned int lineno)
1571 int digits3 = view->digits < 3 ? 3 : view->digits;
1572 int max_number = MIN(digits3, STRING_SIZE(number));
1573 int max = view->width - view->col;
1576 if (max < max_number)
1579 lineno += view->offset + 1;
1580 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1581 static char fmt[] = "%1ld";
1583 if (view->digits <= 9)
1584 fmt[1] = '0' + digits3;
1586 if (!string_format(number, fmt, lineno))
1588 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1590 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1594 set_view_attr(view, LINE_DEFAULT);
1595 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1600 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1603 return view->width - view->col <= 0;
1607 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1609 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1610 return view->width - view->col <= 0;
1614 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1616 int max = view->width - view->col;
1622 set_view_attr(view, type);
1623 /* Using waddch() instead of waddnstr() ensures that
1624 * they'll be rendered correctly for the cursor line. */
1625 for (i = 0; i < size; i++)
1626 waddch(view->win, graphic[i]);
1630 waddch(view->win, ' ');
1634 return view->width - view->col <= 0;
1638 draw_field(struct view *view, enum line_type type, char *text, int len, bool trim)
1640 int max = MIN(view->width - view->col, len);
1644 col = draw_chars(view, type, text, max - 1, trim);
1646 col = draw_space(view, type, max - 1, max - 1);
1648 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1649 return view->width - view->col <= 0;
1653 draw_date(struct view *view, struct tm *time)
1655 char buf[DATE_COLS];
1660 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1661 date = timelen ? buf : NULL;
1663 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1667 draw_view_line(struct view *view, unsigned int lineno)
1670 bool selected = (view->offset + lineno == view->lineno);
1673 assert(view_is_displayed(view));
1675 if (view->offset + lineno >= view->lines)
1678 line = &view->line[view->offset + lineno];
1680 wmove(view->win, lineno, 0);
1682 view->curline = line;
1683 view->curtype = LINE_NONE;
1684 line->selected = FALSE;
1687 set_view_attr(view, LINE_CURSOR);
1688 line->selected = TRUE;
1689 view->ops->select(view, line);
1690 } else if (line->selected) {
1691 wclrtoeol(view->win);
1694 scrollok(view->win, FALSE);
1695 draw_ok = view->ops->draw(view, line, lineno);
1696 scrollok(view->win, TRUE);
1702 redraw_view_dirty(struct view *view)
1707 for (lineno = 0; lineno < view->height; lineno++) {
1708 struct line *line = &view->line[view->offset + lineno];
1714 if (!draw_view_line(view, lineno))
1720 redrawwin(view->win);
1722 wnoutrefresh(view->win);
1724 wrefresh(view->win);
1728 redraw_view_from(struct view *view, int lineno)
1730 assert(0 <= lineno && lineno < view->height);
1732 for (; lineno < view->height; lineno++) {
1733 if (!draw_view_line(view, lineno))
1737 redrawwin(view->win);
1739 wnoutrefresh(view->win);
1741 wrefresh(view->win);
1745 redraw_view(struct view *view)
1748 redraw_view_from(view, 0);
1753 update_view_title(struct view *view)
1755 char buf[SIZEOF_STR];
1756 char state[SIZEOF_STR];
1757 size_t bufpos = 0, statelen = 0;
1759 assert(view_is_displayed(view));
1761 if (view != VIEW(REQ_VIEW_STATUS) && (view->lines || view->pipe)) {
1762 unsigned int view_lines = view->offset + view->height;
1763 unsigned int lines = view->lines
1764 ? MIN(view_lines, view->lines) * 100 / view->lines
1767 string_format_from(state, &statelen, "- %s %d of %d (%d%%)",
1774 time_t secs = time(NULL) - view->start_time;
1776 /* Three git seconds are a long time ... */
1778 string_format_from(state, &statelen, " %lds", secs);
1782 string_format_from(buf, &bufpos, "[%s]", view->name);
1783 if (*view->ref && bufpos < view->width) {
1784 size_t refsize = strlen(view->ref);
1785 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
1787 if (minsize < view->width)
1788 refsize = view->width - minsize + 7;
1789 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
1792 if (statelen && bufpos < view->width) {
1793 string_format_from(buf, &bufpos, " %s", state);
1796 if (view == display[current_view])
1797 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
1799 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
1801 mvwaddnstr(view->title, 0, 0, buf, bufpos);
1802 wclrtoeol(view->title);
1803 wmove(view->title, 0, view->width - 1);
1806 wnoutrefresh(view->title);
1808 wrefresh(view->title);
1812 resize_display(void)
1815 struct view *base = display[0];
1816 struct view *view = display[1] ? display[1] : display[0];
1818 /* Setup window dimensions */
1820 getmaxyx(stdscr, base->height, base->width);
1822 /* Make room for the status window. */
1826 /* Horizontal split. */
1827 view->width = base->width;
1828 view->height = SCALE_SPLIT_VIEW(base->height);
1829 base->height -= view->height;
1831 /* Make room for the title bar. */
1835 /* Make room for the title bar. */
1840 foreach_displayed_view (view, i) {
1842 view->win = newwin(view->height, 0, offset, 0);
1844 die("Failed to create %s view", view->name);
1846 scrollok(view->win, TRUE);
1848 view->title = newwin(1, 0, offset + view->height, 0);
1850 die("Failed to create title window");
1853 wresize(view->win, view->height, view->width);
1854 mvwin(view->win, offset, 0);
1855 mvwin(view->title, offset + view->height, 0);
1858 offset += view->height + 1;
1863 redraw_display(void)
1868 foreach_displayed_view (view, i) {
1870 update_view_title(view);
1875 update_display_cursor(struct view *view)
1877 /* Move the cursor to the right-most column of the cursor line.
1879 * XXX: This could turn out to be a bit expensive, but it ensures that
1880 * the cursor does not jump around. */
1882 wmove(view->win, view->lineno - view->offset, view->width - 1);
1883 wrefresh(view->win);
1891 /* Scrolling backend */
1893 do_scroll_view(struct view *view, int lines)
1895 bool redraw_current_line = FALSE;
1897 /* The rendering expects the new offset. */
1898 view->offset += lines;
1900 assert(0 <= view->offset && view->offset < view->lines);
1903 /* Move current line into the view. */
1904 if (view->lineno < view->offset) {
1905 view->lineno = view->offset;
1906 redraw_current_line = TRUE;
1907 } else if (view->lineno >= view->offset + view->height) {
1908 view->lineno = view->offset + view->height - 1;
1909 redraw_current_line = TRUE;
1912 assert(view->offset <= view->lineno && view->lineno < view->lines);
1914 /* Redraw the whole screen if scrolling is pointless. */
1915 if (view->height < ABS(lines)) {
1919 int line = lines > 0 ? view->height - lines : 0;
1920 int end = line + ABS(lines);
1922 wscrl(view->win, lines);
1924 for (; line < end; line++) {
1925 if (!draw_view_line(view, line))
1929 if (redraw_current_line)
1930 draw_view_line(view, view->lineno - view->offset);
1933 redrawwin(view->win);
1934 wrefresh(view->win);
1938 /* Scroll frontend */
1940 scroll_view(struct view *view, enum request request)
1944 assert(view_is_displayed(view));
1947 case REQ_SCROLL_PAGE_DOWN:
1948 lines = view->height;
1949 case REQ_SCROLL_LINE_DOWN:
1950 if (view->offset + lines > view->lines)
1951 lines = view->lines - view->offset;
1953 if (lines == 0 || view->offset + view->height >= view->lines) {
1954 report("Cannot scroll beyond the last line");
1959 case REQ_SCROLL_PAGE_UP:
1960 lines = view->height;
1961 case REQ_SCROLL_LINE_UP:
1962 if (lines > view->offset)
1963 lines = view->offset;
1966 report("Cannot scroll beyond the first line");
1974 die("request %d not handled in switch", request);
1977 do_scroll_view(view, lines);
1982 move_view(struct view *view, enum request request)
1984 int scroll_steps = 0;
1988 case REQ_MOVE_FIRST_LINE:
1989 steps = -view->lineno;
1992 case REQ_MOVE_LAST_LINE:
1993 steps = view->lines - view->lineno - 1;
1996 case REQ_MOVE_PAGE_UP:
1997 steps = view->height > view->lineno
1998 ? -view->lineno : -view->height;
2001 case REQ_MOVE_PAGE_DOWN:
2002 steps = view->lineno + view->height >= view->lines
2003 ? view->lines - view->lineno - 1 : view->height;
2015 die("request %d not handled in switch", request);
2018 if (steps <= 0 && view->lineno == 0) {
2019 report("Cannot move beyond the first line");
2022 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2023 report("Cannot move beyond the last line");
2027 /* Move the current line */
2028 view->lineno += steps;
2029 assert(0 <= view->lineno && view->lineno < view->lines);
2031 /* Check whether the view needs to be scrolled */
2032 if (view->lineno < view->offset ||
2033 view->lineno >= view->offset + view->height) {
2034 scroll_steps = steps;
2035 if (steps < 0 && -steps > view->offset) {
2036 scroll_steps = -view->offset;
2038 } else if (steps > 0) {
2039 if (view->lineno == view->lines - 1 &&
2040 view->lines > view->height) {
2041 scroll_steps = view->lines - view->offset - 1;
2042 if (scroll_steps >= view->height)
2043 scroll_steps -= view->height - 1;
2048 if (!view_is_displayed(view)) {
2049 view->offset += scroll_steps;
2050 assert(0 <= view->offset && view->offset < view->lines);
2051 view->ops->select(view, &view->line[view->lineno]);
2055 /* Repaint the old "current" line if we be scrolling */
2056 if (ABS(steps) < view->height)
2057 draw_view_line(view, view->lineno - steps - view->offset);
2060 do_scroll_view(view, scroll_steps);
2064 /* Draw the current line */
2065 draw_view_line(view, view->lineno - view->offset);
2067 redrawwin(view->win);
2068 wrefresh(view->win);
2077 static void search_view(struct view *view, enum request request);
2080 find_next_line(struct view *view, unsigned long lineno, struct line *line)
2082 assert(view_is_displayed(view));
2084 if (!view->ops->grep(view, line))
2087 if (lineno - view->offset >= view->height) {
2088 view->offset = lineno;
2089 view->lineno = lineno;
2093 unsigned long old_lineno = view->lineno - view->offset;
2095 view->lineno = lineno;
2096 draw_view_line(view, old_lineno);
2098 draw_view_line(view, view->lineno - view->offset);
2099 redrawwin(view->win);
2100 wrefresh(view->win);
2103 report("Line %ld matches '%s'", lineno + 1, view->grep);
2108 find_next(struct view *view, enum request request)
2110 unsigned long lineno = view->lineno;
2115 report("No previous search");
2117 search_view(view, request);
2127 case REQ_SEARCH_BACK:
2136 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2137 lineno += direction;
2139 /* Note, lineno is unsigned long so will wrap around in which case it
2140 * will become bigger than view->lines. */
2141 for (; lineno < view->lines; lineno += direction) {
2142 struct line *line = &view->line[lineno];
2144 if (find_next_line(view, lineno, line))
2148 report("No match found for '%s'", view->grep);
2152 search_view(struct view *view, enum request request)
2157 regfree(view->regex);
2160 view->regex = calloc(1, sizeof(*view->regex));
2165 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2166 if (regex_err != 0) {
2167 char buf[SIZEOF_STR] = "unknown error";
2169 regerror(regex_err, view->regex, buf, sizeof(buf));
2170 report("Search failed: %s", buf);
2174 string_copy(view->grep, opt_search);
2176 find_next(view, request);
2180 * Incremental updating
2184 end_update(struct view *view, bool force)
2188 while (!view->ops->read(view, NULL))
2191 set_nonblocking_input(FALSE);
2192 if (view->pipe == stdin)
2200 begin_update(struct view *view, bool refresh)
2203 string_copy(view->cmd, opt_cmd);
2205 /* When running random commands, initially show the
2206 * command in the title. However, it maybe later be
2207 * overwritten if a commit line is selected. */
2208 if (view == VIEW(REQ_VIEW_PAGER))
2209 string_copy(view->ref, view->cmd);
2213 } else if (view == VIEW(REQ_VIEW_TREE)) {
2214 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2215 char path[SIZEOF_STR];
2217 if (strcmp(view->vid, view->id))
2218 opt_path[0] = path[0] = 0;
2219 else if (sq_quote(path, 0, opt_path) >= sizeof(path))
2222 if (!string_format(view->cmd, format, view->id, path))
2225 } else if (!refresh) {
2226 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2227 const char *id = view->id;
2229 if (!string_format(view->cmd, format, id, id, id, id, id))
2232 /* Put the current ref_* value to the view title ref
2233 * member. This is needed by the blob view. Most other
2234 * views sets it automatically after loading because the
2235 * first line is a commit line. */
2236 string_copy_rev(view->ref, view->id);
2239 /* Special case for the pager view. */
2241 view->pipe = opt_pipe;
2244 view->pipe = popen(view->cmd, "r");
2250 set_nonblocking_input(TRUE);
2255 string_copy_rev(view->vid, view->id);
2260 for (i = 0; i < view->lines; i++)
2261 if (view->line[i].data)
2262 free(view->line[i].data);
2268 view->start_time = time(NULL);
2273 #define ITEM_CHUNK_SIZE 256
2275 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2277 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2278 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2280 if (mem == NULL || num_chunks != num_chunks_new) {
2281 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2282 mem = realloc(mem, *size * item_size);
2288 static struct line *
2289 realloc_lines(struct view *view, size_t line_size)
2291 size_t alloc = view->line_alloc;
2292 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2293 sizeof(*view->line));
2299 view->line_alloc = alloc;
2300 view->line_size = line_size;
2305 update_view(struct view *view)
2307 char in_buffer[BUFSIZ];
2308 char out_buffer[BUFSIZ * 2];
2310 /* The number of lines to read. If too low it will cause too much
2311 * redrawing (and possible flickering), if too high responsiveness
2313 unsigned long lines = view->height;
2314 int redraw_from = -1;
2319 /* Only redraw if lines are visible. */
2320 if (view->offset + view->height >= view->lines)
2321 redraw_from = view->lines - view->offset;
2323 /* FIXME: This is probably not perfect for backgrounded views. */
2324 if (!realloc_lines(view, view->lines + lines))
2327 while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) {
2328 size_t linelen = strlen(line);
2331 line[linelen - 1] = 0;
2333 if (opt_iconv != ICONV_NONE) {
2334 ICONV_CONST char *inbuf = line;
2335 size_t inlen = linelen;
2337 char *outbuf = out_buffer;
2338 size_t outlen = sizeof(out_buffer);
2342 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2343 if (ret != (size_t) -1) {
2345 linelen = strlen(out_buffer);
2349 if (!view->ops->read(view, line))
2359 lines = view->lines;
2360 for (digits = 0; lines; digits++)
2363 /* Keep the displayed view in sync with line number scaling. */
2364 if (digits != view->digits) {
2365 view->digits = digits;
2370 if (!view_is_displayed(view))
2373 if (view == VIEW(REQ_VIEW_TREE)) {
2374 /* Clear the view and redraw everything since the tree sorting
2375 * might have rearranged things. */
2378 } else if (redraw_from >= 0) {
2379 /* If this is an incremental update, redraw the previous line
2380 * since for commits some members could have changed when
2381 * loading the main view. */
2382 if (redraw_from > 0)
2385 /* Since revision graph visualization requires knowledge
2386 * about the parent commit, it causes a further one-off
2387 * needed to be redrawn for incremental updates. */
2388 if (redraw_from > 0 && opt_rev_graph)
2391 /* Incrementally draw avoids flickering. */
2392 redraw_view_from(view, redraw_from);
2395 if (view == VIEW(REQ_VIEW_BLAME))
2396 redraw_view_dirty(view);
2398 /* Update the title _after_ the redraw so that if the redraw picks up a
2399 * commit reference in view->ref it'll be available here. */
2400 update_view_title(view);
2403 if (ferror(view->pipe) && errno != 0) {
2404 report("Failed to read: %s", strerror(errno));
2405 end_update(view, TRUE);
2407 } else if (feof(view->pipe)) {
2409 end_update(view, FALSE);
2415 report("Allocation failure");
2416 end_update(view, TRUE);
2420 static struct line *
2421 add_line_data(struct view *view, void *data, enum line_type type)
2423 struct line *line = &view->line[view->lines++];
2425 memset(line, 0, sizeof(*line));
2432 static struct line *
2433 add_line_text(struct view *view, char *data, enum line_type type)
2436 data = strdup(data);
2438 return data ? add_line_data(view, data, type) : NULL;
2447 OPEN_DEFAULT = 0, /* Use default view switching. */
2448 OPEN_SPLIT = 1, /* Split current view. */
2449 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2450 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2451 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2452 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2456 open_view(struct view *prev, enum request request, enum open_flags flags)
2458 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2459 bool split = !!(flags & OPEN_SPLIT);
2460 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH));
2461 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2462 struct view *view = VIEW(request);
2463 int nviews = displayed_views();
2464 struct view *base_view = display[0];
2466 if (view == prev && nviews == 1 && !reload) {
2467 report("Already in %s view", view->name);
2471 if (view->git_dir && !opt_git_dir[0]) {
2472 report("The %s view is disabled in pager view", view->name);
2480 } else if (!nomaximize) {
2481 /* Maximize the current view. */
2482 memset(display, 0, sizeof(display));
2484 display[current_view] = view;
2487 /* Resize the view when switching between split- and full-screen,
2488 * or when switching between two different full-screen views. */
2489 if (nviews != displayed_views() ||
2490 (nviews == 1 && base_view != display[0]))
2494 end_update(view, TRUE);
2496 if (view->ops->open) {
2497 if (!view->ops->open(view)) {
2498 report("Failed to load %s view", view->name);
2502 } else if ((reload || strcmp(view->vid, view->id)) &&
2503 !begin_update(view, flags & OPEN_REFRESH)) {
2504 report("Failed to load %s view", view->name);
2508 if (split && prev->lineno - prev->offset >= prev->height) {
2509 /* Take the title line into account. */
2510 int lines = prev->lineno - prev->offset - prev->height + 1;
2512 /* Scroll the view that was split if the current line is
2513 * outside the new limited view. */
2514 do_scroll_view(prev, lines);
2517 if (prev && view != prev) {
2518 if (split && !backgrounded) {
2519 /* "Blur" the previous view. */
2520 update_view_title(prev);
2523 view->parent = prev;
2526 if (view->pipe && view->lines == 0) {
2527 /* Clear the old view and let the incremental updating refill
2536 /* If the view is backgrounded the above calls to report()
2537 * won't redraw the view title. */
2539 update_view_title(view);
2543 run_confirm(const char *cmd, const char *prompt)
2545 bool confirmation = prompt_yesno(prompt);
2550 return confirmation;
2554 open_external_viewer(const char *cmd)
2556 def_prog_mode(); /* save current tty modes */
2557 endwin(); /* restore original tty modes */
2559 fprintf(stderr, "Press Enter to continue");
2566 open_mergetool(const char *file)
2568 char cmd[SIZEOF_STR];
2569 char file_sq[SIZEOF_STR];
2571 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2572 string_format(cmd, "git mergetool %s", file_sq)) {
2573 open_external_viewer(cmd);
2578 open_editor(bool from_root, const char *file)
2580 char cmd[SIZEOF_STR];
2581 char file_sq[SIZEOF_STR];
2583 char *prefix = from_root ? opt_cdup : "";
2585 editor = getenv("GIT_EDITOR");
2586 if (!editor && *opt_editor)
2587 editor = opt_editor;
2589 editor = getenv("VISUAL");
2591 editor = getenv("EDITOR");
2595 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2596 string_format(cmd, "%s %s%s", editor, prefix, file_sq)) {
2597 open_external_viewer(cmd);
2602 open_run_request(enum request request)
2604 struct run_request *req = get_run_request(request);
2605 char buf[SIZEOF_STR * 2];
2610 report("Unknown run request");
2618 char *next = strstr(cmd, "%(");
2619 int len = next - cmd;
2626 } else if (!strncmp(next, "%(head)", 7)) {
2629 } else if (!strncmp(next, "%(commit)", 9)) {
2632 } else if (!strncmp(next, "%(blob)", 7)) {
2636 report("Unknown replacement in run request: `%s`", req->cmd);
2640 if (!string_format_from(buf, &bufpos, "%.*s%s", len, cmd, value))
2644 next = strchr(next, ')') + 1;
2648 open_external_viewer(buf);
2652 * User request switch noodle
2656 view_driver(struct view *view, enum request request)
2660 if (request == REQ_NONE) {
2665 if (request > REQ_NONE) {
2666 open_run_request(request);
2667 /* FIXME: When all views can refresh always do this. */
2668 if (view == VIEW(REQ_VIEW_STATUS) ||
2669 view == VIEW(REQ_VIEW_MAIN) ||
2670 view == VIEW(REQ_VIEW_LOG) ||
2671 view == VIEW(REQ_VIEW_STAGE))
2672 request = REQ_REFRESH;
2677 if (view && view->lines) {
2678 request = view->ops->request(view, request, &view->line[view->lineno]);
2679 if (request == REQ_NONE)
2686 case REQ_MOVE_PAGE_UP:
2687 case REQ_MOVE_PAGE_DOWN:
2688 case REQ_MOVE_FIRST_LINE:
2689 case REQ_MOVE_LAST_LINE:
2690 move_view(view, request);
2693 case REQ_SCROLL_LINE_DOWN:
2694 case REQ_SCROLL_LINE_UP:
2695 case REQ_SCROLL_PAGE_DOWN:
2696 case REQ_SCROLL_PAGE_UP:
2697 scroll_view(view, request);
2700 case REQ_VIEW_BLAME:
2702 report("No file chosen, press %s to open tree view",
2703 get_key(REQ_VIEW_TREE));
2706 open_view(view, request, OPEN_DEFAULT);
2711 report("No file chosen, press %s to open tree view",
2712 get_key(REQ_VIEW_TREE));
2715 open_view(view, request, OPEN_DEFAULT);
2718 case REQ_VIEW_PAGER:
2719 if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2720 report("No pager content, press %s to run command from prompt",
2721 get_key(REQ_PROMPT));
2724 open_view(view, request, OPEN_DEFAULT);
2727 case REQ_VIEW_STAGE:
2728 if (!VIEW(REQ_VIEW_STAGE)->lines) {
2729 report("No stage content, press %s to open the status view and choose file",
2730 get_key(REQ_VIEW_STATUS));
2733 open_view(view, request, OPEN_DEFAULT);
2736 case REQ_VIEW_STATUS:
2737 if (opt_is_inside_work_tree == FALSE) {
2738 report("The status view requires a working tree");
2741 open_view(view, request, OPEN_DEFAULT);
2749 open_view(view, request, OPEN_DEFAULT);
2754 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2756 if ((view == VIEW(REQ_VIEW_DIFF) &&
2757 view->parent == VIEW(REQ_VIEW_MAIN)) ||
2758 (view == VIEW(REQ_VIEW_DIFF) &&
2759 view->parent == VIEW(REQ_VIEW_BLAME)) ||
2760 (view == VIEW(REQ_VIEW_STAGE) &&
2761 view->parent == VIEW(REQ_VIEW_STATUS)) ||
2762 (view == VIEW(REQ_VIEW_BLOB) &&
2763 view->parent == VIEW(REQ_VIEW_TREE))) {
2766 view = view->parent;
2767 line = view->lineno;
2768 move_view(view, request);
2769 if (view_is_displayed(view))
2770 update_view_title(view);
2771 if (line != view->lineno)
2772 view->ops->request(view, REQ_ENTER,
2773 &view->line[view->lineno]);
2776 move_view(view, request);
2782 int nviews = displayed_views();
2783 int next_view = (current_view + 1) % nviews;
2785 if (next_view == current_view) {
2786 report("Only one view is displayed");
2790 current_view = next_view;
2791 /* Blur out the title of the previous view. */
2792 update_view_title(view);
2797 report("Refreshing is not yet supported for the %s view", view->name);
2801 if (displayed_views() == 2)
2802 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
2805 case REQ_TOGGLE_LINENO:
2806 opt_line_number = !opt_line_number;
2810 case REQ_TOGGLE_DATE:
2811 opt_date = !opt_date;
2815 case REQ_TOGGLE_AUTHOR:
2816 opt_author = !opt_author;
2820 case REQ_TOGGLE_REV_GRAPH:
2821 opt_rev_graph = !opt_rev_graph;
2825 case REQ_TOGGLE_REFS:
2826 opt_show_refs = !opt_show_refs;
2831 case REQ_SEARCH_BACK:
2832 search_view(view, request);
2837 find_next(view, request);
2840 case REQ_STOP_LOADING:
2841 for (i = 0; i < ARRAY_SIZE(views); i++) {
2844 report("Stopped loading the %s view", view->name),
2845 end_update(view, TRUE);
2849 case REQ_SHOW_VERSION:
2850 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
2853 case REQ_SCREEN_RESIZE:
2856 case REQ_SCREEN_REDRAW:
2861 report("Nothing to edit");
2865 report("Nothing to enter");
2868 case REQ_VIEW_CLOSE:
2869 /* XXX: Mark closed views by letting view->parent point to the
2870 * view itself. Parents to closed view should never be
2873 view->parent->parent != view->parent) {
2874 memset(display, 0, sizeof(display));
2876 display[current_view] = view->parent;
2877 view->parent = view;
2887 /* An unknown key will show most commonly used commands. */
2888 report("Unknown key, press 'h' for help");
2901 pager_draw(struct view *view, struct line *line, unsigned int lineno)
2903 char *text = line->data;
2905 if (opt_line_number && draw_lineno(view, lineno))
2908 draw_text(view, line->type, text, TRUE);
2913 add_describe_ref(char *buf, size_t *bufpos, char *commit_id, const char *sep)
2915 char refbuf[SIZEOF_STR];
2919 if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id))
2922 pipe = popen(refbuf, "r");
2926 if ((ref = fgets(refbuf, sizeof(refbuf), pipe)))
2927 ref = chomp_string(ref);
2933 /* This is the only fatal call, since it can "corrupt" the buffer. */
2934 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
2941 add_pager_refs(struct view *view, struct line *line)
2943 char buf[SIZEOF_STR];
2944 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
2946 size_t bufpos = 0, refpos = 0;
2947 const char *sep = "Refs: ";
2948 bool is_tag = FALSE;
2950 assert(line->type == LINE_COMMIT);
2952 refs = get_refs(commit_id);
2954 if (view == VIEW(REQ_VIEW_DIFF))
2955 goto try_add_describe_ref;
2960 struct ref *ref = refs[refpos];
2961 char *fmt = ref->tag ? "%s[%s]" :
2962 ref->remote ? "%s<%s>" : "%s%s";
2964 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
2969 } while (refs[refpos++]->next);
2971 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
2972 try_add_describe_ref:
2973 /* Add <tag>-g<commit_id> "fake" reference. */
2974 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
2981 if (!realloc_lines(view, view->line_size + 1))
2984 add_line_text(view, buf, LINE_PP_REFS);
2988 pager_read(struct view *view, char *data)
2995 line = add_line_text(view, data, get_line_type(data));
2999 if (line->type == LINE_COMMIT &&
3000 (view == VIEW(REQ_VIEW_DIFF) ||
3001 view == VIEW(REQ_VIEW_LOG)))
3002 add_pager_refs(view, line);
3008 pager_request(struct view *view, enum request request, struct line *line)
3012 if (request != REQ_ENTER)
3015 if (line->type == LINE_COMMIT &&
3016 (view == VIEW(REQ_VIEW_LOG) ||
3017 view == VIEW(REQ_VIEW_PAGER))) {
3018 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3022 /* Always scroll the view even if it was split. That way
3023 * you can use Enter to scroll through the log view and
3024 * split open each commit diff. */
3025 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3027 /* FIXME: A minor workaround. Scrolling the view will call report("")
3028 * but if we are scrolling a non-current view this won't properly
3029 * update the view title. */
3031 update_view_title(view);
3037 pager_grep(struct view *view, struct line *line)
3040 char *text = line->data;
3045 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3052 pager_select(struct view *view, struct line *line)
3054 if (line->type == LINE_COMMIT) {
3055 char *text = (char *)line->data + STRING_SIZE("commit ");
3057 if (view != VIEW(REQ_VIEW_PAGER))
3058 string_copy_rev(view->ref, text);
3059 string_copy_rev(ref_commit, text);
3063 static struct view_ops pager_ops = {
3074 log_request(struct view *view, enum request request, struct line *line)
3079 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3082 return pager_request(view, request, line);
3086 static struct view_ops log_ops = {
3102 help_open(struct view *view)
3105 int lines = ARRAY_SIZE(req_info) + 2;
3108 if (view->lines > 0)
3111 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3112 if (!req_info[i].request)
3115 lines += run_requests + 1;
3117 view->line = calloc(lines, sizeof(*view->line));
3121 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3123 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3126 if (req_info[i].request == REQ_NONE)
3129 if (!req_info[i].request) {
3130 add_line_text(view, "", LINE_DEFAULT);
3131 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3135 key = get_key(req_info[i].request);
3137 key = "(no key defined)";
3139 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
3142 add_line_text(view, buf, LINE_DEFAULT);
3146 add_line_text(view, "", LINE_DEFAULT);
3147 add_line_text(view, "External commands:", LINE_DEFAULT);
3150 for (i = 0; i < run_requests; i++) {
3151 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3157 key = get_key_name(req->key);
3159 key = "(no key defined)";
3161 if (!string_format(buf, " %-10s %-14s `%s`",
3162 keymap_table[req->keymap].name,
3166 add_line_text(view, buf, LINE_DEFAULT);
3172 static struct view_ops help_ops = {
3187 struct tree_stack_entry {
3188 struct tree_stack_entry *prev; /* Entry below this in the stack */
3189 unsigned long lineno; /* Line number to restore */
3190 char *name; /* Position of name in opt_path */
3193 /* The top of the path stack. */
3194 static struct tree_stack_entry *tree_stack = NULL;
3195 unsigned long tree_lineno = 0;
3198 pop_tree_stack_entry(void)
3200 struct tree_stack_entry *entry = tree_stack;
3202 tree_lineno = entry->lineno;
3204 tree_stack = entry->prev;
3209 push_tree_stack_entry(char *name, unsigned long lineno)
3211 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3212 size_t pathlen = strlen(opt_path);
3217 entry->prev = tree_stack;
3218 entry->name = opt_path + pathlen;
3221 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3222 pop_tree_stack_entry();
3226 /* Move the current line to the first tree entry. */
3228 entry->lineno = lineno;
3231 /* Parse output from git-ls-tree(1):
3233 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3234 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3235 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3236 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3239 #define SIZEOF_TREE_ATTR \
3240 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3242 #define TREE_UP_FORMAT "040000 tree %s\t.."
3245 tree_compare_entry(enum line_type type1, char *name1,
3246 enum line_type type2, char *name2)
3248 if (type1 != type2) {
3249 if (type1 == LINE_TREE_DIR)
3254 return strcmp(name1, name2);
3258 tree_path(struct line *line)
3260 char *path = line->data;
3262 return path + SIZEOF_TREE_ATTR;
3266 tree_read(struct view *view, char *text)
3268 size_t textlen = text ? strlen(text) : 0;
3269 char buf[SIZEOF_STR];
3271 enum line_type type;
3272 bool first_read = view->lines == 0;
3276 if (textlen <= SIZEOF_TREE_ATTR)
3279 type = text[STRING_SIZE("100644 ")] == 't'
3280 ? LINE_TREE_DIR : LINE_TREE_FILE;
3283 /* Add path info line */
3284 if (!string_format(buf, "Directory path /%s", opt_path) ||
3285 !realloc_lines(view, view->line_size + 1) ||
3286 !add_line_text(view, buf, LINE_DEFAULT))
3289 /* Insert "link" to parent directory. */
3291 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
3292 !realloc_lines(view, view->line_size + 1) ||
3293 !add_line_text(view, buf, LINE_TREE_DIR))
3298 /* Strip the path part ... */
3300 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3301 size_t striplen = strlen(opt_path);
3302 char *path = text + SIZEOF_TREE_ATTR;
3304 if (pathlen > striplen)
3305 memmove(path, path + striplen,
3306 pathlen - striplen + 1);
3309 /* Skip "Directory ..." and ".." line. */
3310 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
3311 struct line *line = &view->line[pos];
3312 char *path1 = tree_path(line);
3313 char *path2 = text + SIZEOF_TREE_ATTR;
3314 int cmp = tree_compare_entry(line->type, path1, type, path2);
3319 text = strdup(text);
3323 if (view->lines > pos)
3324 memmove(&view->line[pos + 1], &view->line[pos],
3325 (view->lines - pos) * sizeof(*line));
3327 line = &view->line[pos];
3334 if (!add_line_text(view, text, type))
3337 if (tree_lineno > view->lineno) {
3338 view->lineno = tree_lineno;
3346 tree_request(struct view *view, enum request request, struct line *line)
3348 enum open_flags flags;
3350 if (request == REQ_VIEW_BLAME) {
3351 char *filename = tree_path(line);
3353 if (line->type == LINE_TREE_DIR) {
3354 report("Cannot show blame for directory %s", opt_path);
3358 string_copy(opt_ref, view->vid);
3359 string_format(opt_file, "%s%s", opt_path, filename);
3362 if (request == REQ_TREE_PARENT) {
3365 request = REQ_ENTER;
3366 line = &view->line[1];
3368 /* quit view if at top of tree */
3369 return REQ_VIEW_CLOSE;
3372 if (request != REQ_ENTER)
3375 /* Cleanup the stack if the tree view is at a different tree. */
3376 while (!*opt_path && tree_stack)
3377 pop_tree_stack_entry();
3379 switch (line->type) {
3381 /* Depending on whether it is a subdir or parent (updir?) link
3382 * mangle the path buffer. */
3383 if (line == &view->line[1] && *opt_path) {
3384 pop_tree_stack_entry();
3387 char *basename = tree_path(line);
3389 push_tree_stack_entry(basename, view->lineno);
3392 /* Trees and subtrees share the same ID, so they are not not
3393 * unique like blobs. */
3394 flags = OPEN_RELOAD;
3395 request = REQ_VIEW_TREE;
3398 case LINE_TREE_FILE:
3399 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3400 request = REQ_VIEW_BLOB;
3407 open_view(view, request, flags);
3408 if (request == REQ_VIEW_TREE) {
3409 view->lineno = tree_lineno;
3416 tree_select(struct view *view, struct line *line)
3418 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3420 if (line->type == LINE_TREE_FILE) {
3421 string_copy_rev(ref_blob, text);
3423 } else if (line->type != LINE_TREE_DIR) {
3427 string_copy_rev(view->ref, text);
3430 static struct view_ops tree_ops = {
3441 blob_read(struct view *view, char *line)
3445 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3448 static struct view_ops blob_ops = {
3461 * Loading the blame view is a two phase job:
3463 * 1. File content is read either using opt_file from the
3464 * filesystem or using git-cat-file.
3465 * 2. Then blame information is incrementally added by
3466 * reading output from git-blame.
3469 struct blame_commit {
3470 char id[SIZEOF_REV]; /* SHA1 ID. */
3471 char title[128]; /* First line of the commit message. */
3472 char author[75]; /* Author of the commit. */
3473 struct tm time; /* Date from the author ident. */
3474 char filename[128]; /* Name of file. */
3478 struct blame_commit *commit;
3479 unsigned int header:1;
3483 #define BLAME_CAT_FILE_CMD "git cat-file blob %s:%s"
3484 #define BLAME_INCREMENTAL_CMD "git blame --incremental %s %s"
3487 blame_open(struct view *view)
3489 char path[SIZEOF_STR];
3490 char ref[SIZEOF_STR] = "";
3492 if (sq_quote(path, 0, opt_file) >= sizeof(path))
3495 if (*opt_ref && sq_quote(ref, 0, opt_ref) >= sizeof(ref))
3499 if (!string_format(view->cmd, BLAME_CAT_FILE_CMD, ref, path))
3502 view->pipe = fopen(opt_file, "r");
3504 !string_format(view->cmd, BLAME_CAT_FILE_CMD, "HEAD", path))
3509 view->pipe = popen(view->cmd, "r");
3513 if (!string_format(view->cmd, BLAME_INCREMENTAL_CMD, ref, path))
3516 string_format(view->ref, "%s ...", opt_file);
3517 string_copy_rev(view->vid, opt_file);
3518 set_nonblocking_input(TRUE);
3523 for (i = 0; i < view->lines; i++)
3524 free(view->line[i].data);
3528 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
3529 view->offset = view->lines = view->lineno = 0;
3531 view->start_time = time(NULL);
3536 static struct blame_commit *
3537 get_blame_commit(struct view *view, const char *id)
3541 for (i = 0; i < view->lines; i++) {
3542 struct blame *blame = view->line[i].data;
3547 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3548 return blame->commit;
3552 struct blame_commit *commit = calloc(1, sizeof(*commit));
3555 string_ncopy(commit->id, id, SIZEOF_REV);
3561 parse_number(char **posref, size_t *number, size_t min, size_t max)
3563 char *pos = *posref;
3566 pos = strchr(pos + 1, ' ');
3567 if (!pos || !isdigit(pos[1]))
3569 *number = atoi(pos + 1);
3570 if (*number < min || *number > max)
3577 static struct blame_commit *
3578 parse_blame_commit(struct view *view, char *text, int *blamed)
3580 struct blame_commit *commit;
3581 struct blame *blame;
3582 char *pos = text + SIZEOF_REV - 1;
3586 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3589 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3590 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3593 commit = get_blame_commit(view, text);
3599 struct line *line = &view->line[lineno + group - 1];
3602 blame->commit = commit;
3603 blame->header = !group;
3611 blame_read_file(struct view *view, char *line)
3616 if (view->lines > 0)
3617 pipe = popen(view->cmd, "r");
3618 else if (!view->parent)
3619 die("No blame exist for %s", view->vid);
3622 report("Failed to load blame data");
3631 size_t linelen = strlen(line);
3632 struct blame *blame = malloc(sizeof(*blame) + linelen);
3634 blame->commit = NULL;
3635 strncpy(blame->text, line, linelen);
3636 blame->text[linelen] = 0;
3637 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3642 match_blame_header(const char *name, char **line)
3644 size_t namelen = strlen(name);
3645 bool matched = !strncmp(name, *line, namelen);
3654 blame_read(struct view *view, char *line)
3656 static struct blame_commit *commit = NULL;
3657 static int blamed = 0;
3658 static time_t author_time;
3661 return blame_read_file(view, line);
3667 string_format(view->ref, "%s", view->vid);
3668 if (view_is_displayed(view)) {
3669 update_view_title(view);
3670 redraw_view_from(view, 0);
3676 commit = parse_blame_commit(view, line, &blamed);
3677 string_format(view->ref, "%s %2d%%", view->vid,
3678 blamed * 100 / view->lines);
3680 } else if (match_blame_header("author ", &line)) {
3681 string_ncopy(commit->author, line, strlen(line));
3683 } else if (match_blame_header("author-time ", &line)) {
3684 author_time = (time_t) atol(line);
3686 } else if (match_blame_header("author-tz ", &line)) {
3689 tz = ('0' - line[1]) * 60 * 60 * 10;
3690 tz += ('0' - line[2]) * 60 * 60;
3691 tz += ('0' - line[3]) * 60;
3692 tz += ('0' - line[4]) * 60;
3698 gmtime_r(&author_time, &commit->time);
3700 } else if (match_blame_header("summary ", &line)) {
3701 string_ncopy(commit->title, line, strlen(line));
3703 } else if (match_blame_header("filename ", &line)) {
3704 string_ncopy(commit->filename, line, strlen(line));
3712 blame_draw(struct view *view, struct line *line, unsigned int lineno)
3714 struct blame *blame = line->data;
3715 struct tm *time = NULL;
3716 char *id = NULL, *author = NULL;
3718 if (blame->commit && *blame->commit->filename) {
3719 id = blame->commit->id;
3720 author = blame->commit->author;
3721 time = &blame->commit->time;
3724 if (opt_date && draw_date(view, time))
3728 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
3731 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
3734 if (draw_lineno(view, lineno))
3737 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
3742 blame_request(struct view *view, enum request request, struct line *line)
3744 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3745 struct blame *blame = line->data;
3749 if (!blame->commit) {
3750 report("No commit loaded yet");
3754 if (!strcmp(blame->commit->id, NULL_ID)) {
3755 char path[SIZEOF_STR];
3757 if (sq_quote(path, 0, view->vid) >= sizeof(path))
3759 string_format(opt_cmd, "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s 2>/dev/null", path);
3762 open_view(view, REQ_VIEW_DIFF, flags);
3773 blame_grep(struct view *view, struct line *line)
3775 struct blame *blame = line->data;
3776 struct blame_commit *commit = blame->commit;
3779 #define MATCH(text, on) \
3780 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3783 char buf[DATE_COLS + 1];
3785 if (MATCH(commit->title, 1) ||
3786 MATCH(commit->author, opt_author) ||
3787 MATCH(commit->id, opt_date))
3790 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
3795 return MATCH(blame->text, 1);
3801 blame_select(struct view *view, struct line *line)
3803 struct blame *blame = line->data;
3804 struct blame_commit *commit = blame->commit;
3809 if (!strcmp(commit->id, NULL_ID))
3810 string_ncopy(ref_commit, "HEAD", 4);
3812 string_copy_rev(ref_commit, commit->id);
3815 static struct view_ops blame_ops = {
3833 char rev[SIZEOF_REV];
3834 char name[SIZEOF_STR];
3838 char rev[SIZEOF_REV];
3839 char name[SIZEOF_STR];
3843 static char status_onbranch[SIZEOF_STR];
3844 static struct status stage_status;
3845 static enum line_type stage_line_type;
3846 static size_t stage_chunks;
3847 static int *stage_chunk;
3849 /* This should work even for the "On branch" line. */
3851 status_has_none(struct view *view, struct line *line)
3853 return line < view->line + view->lines && !line[1].data;
3856 /* Get fields from the diff line:
3857 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3860 status_get_diff(struct status *file, char *buf, size_t bufsize)
3862 char *old_mode = buf + 1;
3863 char *new_mode = buf + 8;
3864 char *old_rev = buf + 15;
3865 char *new_rev = buf + 56;
3866 char *status = buf + 97;
3869 old_mode[-1] != ':' ||
3870 new_mode[-1] != ' ' ||
3871 old_rev[-1] != ' ' ||
3872 new_rev[-1] != ' ' ||
3876 file->status = *status;
3878 string_copy_rev(file->old.rev, old_rev);
3879 string_copy_rev(file->new.rev, new_rev);
3881 file->old.mode = strtoul(old_mode, NULL, 8);
3882 file->new.mode = strtoul(new_mode, NULL, 8);
3884 file->old.name[0] = file->new.name[0] = 0;
3890 status_run(struct view *view, const char cmd[], char status, enum line_type type)
3892 struct status *file = NULL;
3893 struct status *unmerged = NULL;
3894 char buf[SIZEOF_STR * 4];
3898 pipe = popen(cmd, "r");
3902 add_line_data(view, NULL, type);
3904 while (!feof(pipe) && !ferror(pipe)) {
3908 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3911 bufsize += readsize;
3913 /* Process while we have NUL chars. */
3914 while ((sep = memchr(buf, 0, bufsize))) {
3915 size_t sepsize = sep - buf + 1;
3918 if (!realloc_lines(view, view->line_size + 1))
3921 file = calloc(1, sizeof(*file));
3925 add_line_data(view, file, type);
3928 /* Parse diff info part. */
3930 file->status = status;
3932 string_copy(file->old.rev, NULL_ID);
3934 } else if (!file->status) {
3935 if (!status_get_diff(file, buf, sepsize))
3939 memmove(buf, sep + 1, bufsize);
3941 sep = memchr(buf, 0, bufsize);
3944 sepsize = sep - buf + 1;
3946 /* Collapse all 'M'odified entries that
3947 * follow a associated 'U'nmerged entry.
3949 if (file->status == 'U') {
3952 } else if (unmerged) {
3953 int collapse = !strcmp(buf, unmerged->new.name);
3964 /* Grab the old name for rename/copy. */
3965 if (!*file->old.name &&
3966 (file->status == 'R' || file->status == 'C')) {
3967 sepsize = sep - buf + 1;
3968 string_ncopy(file->old.name, buf, sepsize);
3970 memmove(buf, sep + 1, bufsize);
3972 sep = memchr(buf, 0, bufsize);
3975 sepsize = sep - buf + 1;
3978 /* git-ls-files just delivers a NUL separated
3979 * list of file names similar to the second half
3980 * of the git-diff-* output. */
3981 string_ncopy(file->new.name, buf, sepsize);
3982 if (!*file->old.name)
3983 string_copy(file->old.name, file->new.name);
3985 memmove(buf, sep + 1, bufsize);
3996 if (!view->line[view->lines - 1].data)
3997 add_line_data(view, NULL, LINE_STAT_NONE);
4003 /* Don't show unmerged entries in the staged section. */
4004 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD"
4005 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
4006 #define STATUS_LIST_OTHER_CMD \
4007 "git ls-files -z --others --exclude-standard"
4008 #define STATUS_LIST_NO_HEAD_CMD \
4009 "git ls-files -z --cached --exclude-standard"
4011 #define STATUS_DIFF_INDEX_SHOW_CMD \
4012 "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null"
4014 #define STATUS_DIFF_FILES_SHOW_CMD \
4015 "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null"
4017 #define STATUS_DIFF_NO_HEAD_SHOW_CMD \
4018 "git diff --no-color --patch-with-stat /dev/null %s 2>/dev/null"
4020 /* First parse staged info using git-diff-index(1), then parse unstaged
4021 * info using git-diff-files(1), and finally untracked files using
4022 * git-ls-files(1). */
4024 status_open(struct view *view)
4026 unsigned long prev_lineno = view->lineno;
4029 for (i = 0; i < view->lines; i++)
4030 free(view->line[i].data);
4032 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
4035 if (!realloc_lines(view, view->line_size + 7))
4038 add_line_data(view, NULL, LINE_STAT_HEAD);
4040 string_copy(status_onbranch, "Initial commit");
4041 else if (!*opt_head)
4042 string_copy(status_onbranch, "Not currently on any branch");
4043 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4046 system("git update-index -q --refresh >/dev/null 2>/dev/null");
4049 !status_run(view, STATUS_LIST_NO_HEAD_CMD, 'A', LINE_STAT_STAGED))
4051 else if (!status_run(view, STATUS_DIFF_INDEX_CMD, 0, LINE_STAT_STAGED))
4054 if (!status_run(view, STATUS_DIFF_FILES_CMD, 0, LINE_STAT_UNSTAGED) ||
4055 !status_run(view, STATUS_LIST_OTHER_CMD, '?', LINE_STAT_UNTRACKED))
4058 /* If all went well restore the previous line number to stay in
4059 * the context or select a line with something that can be
4061 if (prev_lineno >= view->lines)
4062 prev_lineno = view->lines - 1;
4063 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4065 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4068 /* If the above fails, always skip the "On branch" line. */
4069 if (prev_lineno < view->lines)
4070 view->lineno = prev_lineno;
4074 if (view->lineno < view->offset)
4075 view->offset = view->lineno;
4076 else if (view->offset + view->height <= view->lineno)
4077 view->offset = view->lineno - view->height + 1;
4083 status_draw(struct view *view, struct line *line, unsigned int lineno)
4085 struct status *status = line->data;
4086 enum line_type type;
4090 switch (line->type) {
4091 case LINE_STAT_STAGED:
4092 type = LINE_STAT_SECTION;
4093 text = "Changes to be committed:";
4096 case LINE_STAT_UNSTAGED:
4097 type = LINE_STAT_SECTION;
4098 text = "Changed but not updated:";
4101 case LINE_STAT_UNTRACKED:
4102 type = LINE_STAT_SECTION;
4103 text = "Untracked files:";
4106 case LINE_STAT_NONE:
4107 type = LINE_DEFAULT;
4108 text = " (no files)";
4111 case LINE_STAT_HEAD:
4112 type = LINE_STAT_HEAD;
4113 text = status_onbranch;
4120 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4122 buf[0] = status->status;
4123 if (draw_text(view, line->type, buf, TRUE))
4125 type = LINE_DEFAULT;
4126 text = status->new.name;
4129 draw_text(view, type, text, TRUE);
4134 status_enter(struct view *view, struct line *line)
4136 struct status *status = line->data;
4137 char oldpath[SIZEOF_STR] = "";
4138 char newpath[SIZEOF_STR] = "";
4141 enum open_flags split;
4143 if (line->type == LINE_STAT_NONE ||
4144 (!status && line[1].type == LINE_STAT_NONE)) {
4145 report("No file to diff");
4150 if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath))
4152 /* Diffs for unmerged entries are empty when pasing the
4153 * new path, so leave it empty. */
4154 if (status->status != 'U' &&
4155 sq_quote(newpath, 0, status->new.name) >= sizeof(newpath))
4160 line->type != LINE_STAT_UNTRACKED &&
4161 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
4164 switch (line->type) {
4165 case LINE_STAT_STAGED:
4167 if (!string_format_from(opt_cmd, &cmdsize,
4168 STATUS_DIFF_NO_HEAD_SHOW_CMD,
4172 if (!string_format_from(opt_cmd, &cmdsize,
4173 STATUS_DIFF_INDEX_SHOW_CMD,
4179 info = "Staged changes to %s";
4181 info = "Staged changes";
4184 case LINE_STAT_UNSTAGED:
4185 if (!string_format_from(opt_cmd, &cmdsize,
4186 STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath))
4189 info = "Unstaged changes to %s";
4191 info = "Unstaged changes";
4194 case LINE_STAT_UNTRACKED:
4199 report("No file to show");
4203 opt_pipe = fopen(status->new.name, "r");
4204 info = "Untracked file %s";
4207 case LINE_STAT_HEAD:
4211 die("line type %d not handled in switch", line->type);
4214 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4215 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | split);
4216 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4218 stage_status = *status;
4220 memset(&stage_status, 0, sizeof(stage_status));
4223 stage_line_type = line->type;
4225 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4232 status_exists(struct status *status, enum line_type type)
4234 struct view *view = VIEW(REQ_VIEW_STATUS);
4237 for (line = view->line; line < view->line + view->lines; line++) {
4238 struct status *pos = line->data;
4240 if (line->type == type && pos &&
4241 !strcmp(status->new.name, pos->new.name))
4250 status_update_prepare(enum line_type type)
4252 char cmd[SIZEOF_STR];
4256 type != LINE_STAT_UNTRACKED &&
4257 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4261 case LINE_STAT_STAGED:
4262 string_add(cmd, cmdsize, "git update-index -z --index-info");
4265 case LINE_STAT_UNSTAGED:
4266 case LINE_STAT_UNTRACKED:
4267 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
4271 die("line type %d not handled in switch", type);
4274 return popen(cmd, "w");
4278 status_update_write(FILE *pipe, struct status *status, enum line_type type)
4280 char buf[SIZEOF_STR];
4285 case LINE_STAT_STAGED:
4286 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4289 status->old.name, 0))
4293 case LINE_STAT_UNSTAGED:
4294 case LINE_STAT_UNTRACKED:
4295 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4300 die("line type %d not handled in switch", type);
4303 while (!ferror(pipe) && written < bufsize) {
4304 written += fwrite(buf + written, 1, bufsize - written, pipe);
4307 return written == bufsize;
4311 status_update_file(struct status *status, enum line_type type)
4313 FILE *pipe = status_update_prepare(type);
4319 result = status_update_write(pipe, status, type);
4325 status_update_files(struct view *view, struct line *line)
4327 FILE *pipe = status_update_prepare(line->type);
4329 struct line *pos = view->line + view->lines;
4336 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4339 for (file = 0, done = 0; result && file < files; line++, file++) {
4340 int almost_done = file * 100 / files;
4342 if (almost_done > done) {
4344 string_format(view->ref, "updating file %u of %u (%d%% done)",
4346 update_view_title(view);
4348 result = status_update_write(pipe, line->data, line->type);
4356 status_update(struct view *view)
4358 struct line *line = &view->line[view->lineno];
4360 assert(view->lines);
4363 /* This should work even for the "On branch" line. */
4364 if (line < view->line + view->lines && !line[1].data) {
4365 report("Nothing to update");
4369 if (!status_update_files(view, line + 1)) {
4370 report("Failed to update file status");
4374 } else if (!status_update_file(line->data, line->type)) {
4375 report("Failed to update file status");
4383 status_checkout(struct status *status, enum line_type type, bool has_none)
4385 if (!status || type != LINE_STAT_UNSTAGED) {
4386 if (type == LINE_STAT_STAGED) {
4387 report("Cannot checkout staged files");
4388 } else if (type == LINE_STAT_UNTRACKED) {
4389 report("Cannot checkout untracked files");
4390 } else if (has_none) {
4391 report("Nothing to checkout");
4393 report("Cannot checkout multiple files");
4398 char cmd[SIZEOF_STR];
4399 char file_sq[SIZEOF_STR];
4401 if (sq_quote(file_sq, 0, status->old.name) >= sizeof(file_sq) ||
4402 !string_format(cmd, "git checkout %s%s", opt_cdup, file_sq))
4405 return run_confirm(cmd, "Are you sure you want to overwrite any changes?");
4410 status_request(struct view *view, enum request request, struct line *line)
4412 struct status *status = line->data;
4415 case REQ_STATUS_UPDATE:
4416 if (!status_update(view))
4420 case REQ_STATUS_CHECKOUT:
4421 if (!status_checkout(status, line->type, status_has_none(view, line)))
4425 case REQ_STATUS_MERGE:
4426 if (!status || status->status != 'U') {
4427 report("Merging only possible for files with unmerged status ('U').");
4430 open_mergetool(status->new.name);
4437 open_editor(status->status != '?', status->new.name);
4440 case REQ_VIEW_BLAME:
4442 string_copy(opt_file, status->new.name);
4448 /* After returning the status view has been split to
4449 * show the stage view. No further reloading is
4451 status_enter(view, line);
4455 /* Simply reload the view. */
4462 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4468 status_select(struct view *view, struct line *line)
4470 struct status *status = line->data;
4471 char file[SIZEOF_STR] = "all files";
4475 if (status && !string_format(file, "'%s'", status->new.name))
4478 if (!status && line[1].type == LINE_STAT_NONE)
4481 switch (line->type) {
4482 case LINE_STAT_STAGED:
4483 text = "Press %s to unstage %s for commit";
4486 case LINE_STAT_UNSTAGED:
4487 text = "Press %s to stage %s for commit";
4490 case LINE_STAT_UNTRACKED:
4491 text = "Press %s to stage %s for addition";
4494 case LINE_STAT_HEAD:
4495 case LINE_STAT_NONE:
4496 text = "Nothing to update";
4500 die("line type %d not handled in switch", line->type);
4503 if (status && status->status == 'U') {
4504 text = "Press %s to resolve conflict in %s";
4505 key = get_key(REQ_STATUS_MERGE);
4508 key = get_key(REQ_STATUS_UPDATE);
4511 string_format(view->ref, text, key, file);
4515 status_grep(struct view *view, struct line *line)
4517 struct status *status = line->data;
4518 enum { S_STATUS, S_NAME, S_END } state;
4525 for (state = S_STATUS; state < S_END; state++) {
4529 case S_NAME: text = status->new.name; break;
4531 buf[0] = status->status;
4539 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4546 static struct view_ops status_ops = {
4558 stage_diff_line(FILE *pipe, struct line *line)
4560 char *buf = line->data;
4561 size_t bufsize = strlen(buf);
4564 while (!ferror(pipe) && written < bufsize) {
4565 written += fwrite(buf + written, 1, bufsize - written, pipe);
4570 return written == bufsize;
4574 stage_diff_write(FILE *pipe, struct line *line, struct line *end)
4576 while (line < end) {
4577 if (!stage_diff_line(pipe, line++))
4579 if (line->type == LINE_DIFF_CHUNK ||
4580 line->type == LINE_DIFF_HEADER)
4587 static struct line *
4588 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4590 for (; view->line < line; line--)
4591 if (line->type == type)
4598 stage_update_chunk(struct view *view, struct line *chunk)
4600 char cmd[SIZEOF_STR];
4602 struct line *diff_hdr;
4605 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4610 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4613 if (!string_format_from(cmd, &cmdsize,
4614 "git apply --whitespace=nowarn --cached %s - && "
4615 "git update-index -q --unmerged --refresh 2>/dev/null",
4616 stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
4619 pipe = popen(cmd, "w");
4623 if (!stage_diff_write(pipe, diff_hdr, chunk) ||
4624 !stage_diff_write(pipe, chunk, view->line + view->lines))
4629 return chunk ? TRUE : FALSE;
4633 stage_update(struct view *view, struct line *line)
4635 struct line *chunk = NULL;
4637 if (!opt_no_head && stage_line_type != LINE_STAT_UNTRACKED)
4638 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4641 if (!stage_update_chunk(view, chunk)) {
4642 report("Failed to apply chunk");
4646 } else if (!stage_status.status) {
4647 view = VIEW(REQ_VIEW_STATUS);
4649 for (line = view->line; line < view->line + view->lines; line++)
4650 if (line->type == stage_line_type)
4653 if (!status_update_files(view, line + 1)) {
4654 report("Failed to update files");
4658 } else if (!status_update_file(&stage_status, stage_line_type)) {
4659 report("Failed to update file");
4667 stage_next(struct view *view, struct line *line)
4671 if (!stage_chunks) {
4672 static size_t alloc = 0;
4675 for (line = view->line; line < view->line + view->lines; line++) {
4676 if (line->type != LINE_DIFF_CHUNK)
4679 tmp = realloc_items(stage_chunk, &alloc,
4680 stage_chunks, sizeof(*tmp));
4682 report("Allocation failure");
4687 stage_chunk[stage_chunks++] = line - view->line;
4691 for (i = 0; i < stage_chunks; i++) {
4692 if (stage_chunk[i] > view->lineno) {
4693 do_scroll_view(view, stage_chunk[i] - view->lineno);
4694 report("Chunk %d of %d", i + 1, stage_chunks);
4699 report("No next chunk found");
4703 stage_request(struct view *view, enum request request, struct line *line)
4706 case REQ_STATUS_UPDATE:
4707 if (!stage_update(view, line))
4711 case REQ_STATUS_CHECKOUT:
4712 if (!status_checkout(stage_status.status ? &stage_status : NULL,
4713 stage_line_type, FALSE))
4717 case REQ_STAGE_NEXT:
4718 if (stage_line_type == LINE_STAT_UNTRACKED) {
4719 report("File is untracked; press %s to add",
4720 get_key(REQ_STATUS_UPDATE));
4723 stage_next(view, line);
4727 if (!stage_status.new.name[0])
4730 open_editor(stage_status.status != '?', stage_status.new.name);
4734 /* Reload everything ... */
4737 case REQ_VIEW_BLAME:
4738 if (stage_status.new.name[0]) {
4739 string_copy(opt_file, stage_status.new.name);
4745 return pager_request(view, request, line);
4751 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4753 /* Check whether the staged entry still exists, and close the
4754 * stage view if it doesn't. */
4755 if (!status_exists(&stage_status, stage_line_type))
4756 return REQ_VIEW_CLOSE;
4758 if (stage_line_type == LINE_STAT_UNTRACKED)
4759 opt_pipe = fopen(stage_status.new.name, "r");
4760 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
4765 static struct view_ops stage_ops = {
4781 char id[SIZEOF_REV]; /* SHA1 ID. */
4782 char title[128]; /* First line of the commit message. */
4783 char author[75]; /* Author of the commit. */
4784 struct tm time; /* Date from the author ident. */
4785 struct ref **refs; /* Repository references. */
4786 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
4787 size_t graph_size; /* The width of the graph array. */
4788 bool has_parents; /* Rewritten --parents seen. */
4791 /* Size of rev graph with no "padding" columns */
4792 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
4795 struct rev_graph *prev, *next, *parents;
4796 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
4798 struct commit *commit;
4800 unsigned int boundary:1;
4803 /* Parents of the commit being visualized. */
4804 static struct rev_graph graph_parents[4];
4806 /* The current stack of revisions on the graph. */
4807 static struct rev_graph graph_stacks[4] = {
4808 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
4809 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
4810 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
4811 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
4815 graph_parent_is_merge(struct rev_graph *graph)
4817 return graph->parents->size > 1;
4821 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
4823 struct commit *commit = graph->commit;
4825 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
4826 commit->graph[commit->graph_size++] = symbol;
4830 clear_rev_graph(struct rev_graph *graph)
4832 graph->boundary = 0;
4833 graph->size = graph->pos = 0;
4834 graph->commit = NULL;
4835 memset(graph->parents, 0, sizeof(*graph->parents));
4839 done_rev_graph(struct rev_graph *graph)
4841 if (graph_parent_is_merge(graph) &&
4842 graph->pos < graph->size - 1 &&
4843 graph->next->size == graph->size + graph->parents->size - 1) {
4844 size_t i = graph->pos + graph->parents->size - 1;
4846 graph->commit->graph_size = i * 2;
4847 while (i < graph->next->size - 1) {
4848 append_to_rev_graph(graph, ' ');
4849 append_to_rev_graph(graph, '\\');
4854 clear_rev_graph(graph);
4858 push_rev_graph(struct rev_graph *graph, char *parent)
4862 /* "Collapse" duplicate parents lines.
4864 * FIXME: This needs to also update update the drawn graph but
4865 * for now it just serves as a method for pruning graph lines. */
4866 for (i = 0; i < graph->size; i++)
4867 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
4870 if (graph->size < SIZEOF_REVITEMS) {
4871 string_copy_rev(graph->rev[graph->size++], parent);
4876 get_rev_graph_symbol(struct rev_graph *graph)
4880 if (graph->boundary)
4881 symbol = REVGRAPH_BOUND;
4882 else if (graph->parents->size == 0)
4883 symbol = REVGRAPH_INIT;
4884 else if (graph_parent_is_merge(graph))
4885 symbol = REVGRAPH_MERGE;
4886 else if (graph->pos >= graph->size)
4887 symbol = REVGRAPH_BRANCH;
4889 symbol = REVGRAPH_COMMIT;
4895 draw_rev_graph(struct rev_graph *graph)
4898 chtype separator, line;
4900 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
4901 static struct rev_filler fillers[] = {
4907 chtype symbol = get_rev_graph_symbol(graph);
4908 struct rev_filler *filler;
4911 if (opt_line_graphics)
4912 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
4914 filler = &fillers[DEFAULT];
4916 for (i = 0; i < graph->pos; i++) {
4917 append_to_rev_graph(graph, filler->line);
4918 if (graph_parent_is_merge(graph->prev) &&
4919 graph->prev->pos == i)
4920 filler = &fillers[RSHARP];
4922 append_to_rev_graph(graph, filler->separator);
4925 /* Place the symbol for this revision. */
4926 append_to_rev_graph(graph, symbol);
4928 if (graph->prev->size > graph->size)
4929 filler = &fillers[RDIAG];
4931 filler = &fillers[DEFAULT];
4935 for (; i < graph->size; i++) {
4936 append_to_rev_graph(graph, filler->separator);
4937 append_to_rev_graph(graph, filler->line);
4938 if (graph_parent_is_merge(graph->prev) &&
4939 i < graph->prev->pos + graph->parents->size)
4940 filler = &fillers[RSHARP];
4941 if (graph->prev->size > graph->size)
4942 filler = &fillers[LDIAG];
4945 if (graph->prev->size > graph->size) {
4946 append_to_rev_graph(graph, filler->separator);
4947 if (filler->line != ' ')
4948 append_to_rev_graph(graph, filler->line);
4952 /* Prepare the next rev graph */
4954 prepare_rev_graph(struct rev_graph *graph)
4958 /* First, traverse all lines of revisions up to the active one. */
4959 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
4960 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
4963 push_rev_graph(graph->next, graph->rev[graph->pos]);
4966 /* Interleave the new revision parent(s). */
4967 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
4968 push_rev_graph(graph->next, graph->parents->rev[i]);
4970 /* Lastly, put any remaining revisions. */
4971 for (i = graph->pos + 1; i < graph->size; i++)
4972 push_rev_graph(graph->next, graph->rev[i]);
4976 update_rev_graph(struct rev_graph *graph)
4978 /* If this is the finalizing update ... */
4980 prepare_rev_graph(graph);
4982 /* Graph visualization needs a one rev look-ahead,
4983 * so the first update doesn't visualize anything. */
4984 if (!graph->prev->commit)
4987 draw_rev_graph(graph->prev);
4988 done_rev_graph(graph->prev->prev);
4997 main_draw(struct view *view, struct line *line, unsigned int lineno)
4999 struct commit *commit = line->data;
5001 if (!*commit->author)
5004 if (opt_date && draw_date(view, &commit->time))
5008 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5011 if (opt_rev_graph && commit->graph_size &&
5012 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5015 if (opt_show_refs && commit->refs) {
5019 enum line_type type;
5021 if (commit->refs[i]->head)
5022 type = LINE_MAIN_HEAD;
5023 else if (commit->refs[i]->ltag)
5024 type = LINE_MAIN_LOCAL_TAG;
5025 else if (commit->refs[i]->tag)
5026 type = LINE_MAIN_TAG;
5027 else if (commit->refs[i]->tracked)
5028 type = LINE_MAIN_TRACKED;
5029 else if (commit->refs[i]->remote)
5030 type = LINE_MAIN_REMOTE;
5032 type = LINE_MAIN_REF;
5034 if (draw_text(view, type, "[", TRUE) ||
5035 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5036 draw_text(view, type, "]", TRUE))
5039 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5041 } while (commit->refs[i++]->next);
5044 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5048 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5050 main_read(struct view *view, char *line)
5052 static struct rev_graph *graph = graph_stacks;
5053 enum line_type type;
5054 struct commit *commit;
5059 if (!view->lines && !view->parent)
5060 die("No revisions match the given arguments.");
5061 if (view->lines > 0) {
5062 commit = view->line[view->lines - 1].data;
5063 if (!*commit->author) {
5066 graph->commit = NULL;
5069 update_rev_graph(graph);
5071 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5072 clear_rev_graph(&graph_stacks[i]);
5076 type = get_line_type(line);
5077 if (type == LINE_COMMIT) {
5078 commit = calloc(1, sizeof(struct commit));
5082 line += STRING_SIZE("commit ");
5084 graph->boundary = 1;
5088 string_copy_rev(commit->id, line);
5089 commit->refs = get_refs(commit->id);
5090 graph->commit = commit;
5091 add_line_data(view, commit, LINE_MAIN_COMMIT);
5093 while ((line = strchr(line, ' '))) {
5095 push_rev_graph(graph->parents, line);
5096 commit->has_parents = TRUE;
5103 commit = view->line[view->lines - 1].data;
5107 if (commit->has_parents)
5109 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5114 /* Parse author lines where the name may be empty:
5115 * author <email@address.tld> 1138474660 +0100
5117 char *ident = line + STRING_SIZE("author ");
5118 char *nameend = strchr(ident, '<');
5119 char *emailend = strchr(ident, '>');
5121 if (!nameend || !emailend)
5124 update_rev_graph(graph);
5125 graph = graph->next;
5127 *nameend = *emailend = 0;
5128 ident = chomp_string(ident);
5130 ident = chomp_string(nameend + 1);
5135 string_ncopy(commit->author, ident, strlen(ident));
5137 /* Parse epoch and timezone */
5138 if (emailend[1] == ' ') {
5139 char *secs = emailend + 2;
5140 char *zone = strchr(secs, ' ');
5141 time_t time = (time_t) atol(secs);
5143 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5147 tz = ('0' - zone[1]) * 60 * 60 * 10;
5148 tz += ('0' - zone[2]) * 60 * 60;
5149 tz += ('0' - zone[3]) * 60;
5150 tz += ('0' - zone[4]) * 60;
5158 gmtime_r(&time, &commit->time);
5163 /* Fill in the commit title if it has not already been set. */
5164 if (commit->title[0])
5167 /* Require titles to start with a non-space character at the
5168 * offset used by git log. */
5169 if (strncmp(line, " ", 4))
5172 /* Well, if the title starts with a whitespace character,
5173 * try to be forgiving. Otherwise we end up with no title. */
5174 while (isspace(*line))
5178 /* FIXME: More graceful handling of titles; append "..." to
5179 * shortened titles, etc. */
5181 string_ncopy(commit->title, line, strlen(line));
5188 main_request(struct view *view, enum request request, struct line *line)
5190 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5194 open_view(view, REQ_VIEW_DIFF, flags);
5198 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5208 grep_refs(struct ref **refs, regex_t *regex)
5216 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5218 } while (refs[i++]->next);
5224 main_grep(struct view *view, struct line *line)
5226 struct commit *commit = line->data;
5227 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5228 char buf[DATE_COLS + 1];
5231 for (state = S_TITLE; state < S_END; state++) {
5235 case S_TITLE: text = commit->title; break;
5239 text = commit->author;
5244 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5251 if (grep_refs(commit->refs, view->regex) == TRUE)
5258 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5266 main_select(struct view *view, struct line *line)
5268 struct commit *commit = line->data;
5270 string_copy_rev(view->ref, commit->id);
5271 string_copy_rev(ref_commit, view->ref);
5274 static struct view_ops main_ops = {
5286 * Unicode / UTF-8 handling
5288 * NOTE: Much of the following code for dealing with unicode is derived from
5289 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5290 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5293 /* I've (over)annotated a lot of code snippets because I am not entirely
5294 * confident that the approach taken by this small UTF-8 interface is correct.
5298 unicode_width(unsigned long c)
5301 (c <= 0x115f /* Hangul Jamo */
5304 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5306 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5307 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5308 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5309 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5310 || (c >= 0xffe0 && c <= 0xffe6)
5311 || (c >= 0x20000 && c <= 0x2fffd)
5312 || (c >= 0x30000 && c <= 0x3fffd)))
5316 return opt_tab_size;
5321 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5322 * Illegal bytes are set one. */
5323 static const unsigned char utf8_bytes[256] = {
5324 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5325 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5326 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5327 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5328 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5329 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5330 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,
5331 3,3,3,3,3,3,3,3, 3,3,3,3,3,3,3,3, 4,4,4,4,4,4,4,4, 5,5,5,5,6,6,1,1,
5334 /* Decode UTF-8 multi-byte representation into a unicode character. */
5335 static inline unsigned long
5336 utf8_to_unicode(const char *string, size_t length)
5338 unsigned long unicode;
5342 unicode = string[0];
5345 unicode = (string[0] & 0x1f) << 6;
5346 unicode += (string[1] & 0x3f);
5349 unicode = (string[0] & 0x0f) << 12;
5350 unicode += ((string[1] & 0x3f) << 6);
5351 unicode += (string[2] & 0x3f);
5354 unicode = (string[0] & 0x0f) << 18;
5355 unicode += ((string[1] & 0x3f) << 12);
5356 unicode += ((string[2] & 0x3f) << 6);
5357 unicode += (string[3] & 0x3f);
5360 unicode = (string[0] & 0x0f) << 24;
5361 unicode += ((string[1] & 0x3f) << 18);
5362 unicode += ((string[2] & 0x3f) << 12);
5363 unicode += ((string[3] & 0x3f) << 6);
5364 unicode += (string[4] & 0x3f);
5367 unicode = (string[0] & 0x01) << 30;
5368 unicode += ((string[1] & 0x3f) << 24);
5369 unicode += ((string[2] & 0x3f) << 18);
5370 unicode += ((string[3] & 0x3f) << 12);
5371 unicode += ((string[4] & 0x3f) << 6);
5372 unicode += (string[5] & 0x3f);
5375 die("Invalid unicode length");
5378 /* Invalid characters could return the special 0xfffd value but NUL
5379 * should be just as good. */
5380 return unicode > 0xffff ? 0 : unicode;
5383 /* Calculates how much of string can be shown within the given maximum width
5384 * and sets trimmed parameter to non-zero value if all of string could not be
5385 * shown. If the reserve flag is TRUE, it will reserve at least one
5386 * trailing character, which can be useful when drawing a delimiter.
5388 * Returns the number of bytes to output from string to satisfy max_width. */
5390 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5392 const char *start = string;
5393 const char *end = strchr(string, '\0');
5394 unsigned char last_bytes = 0;
5395 size_t last_ucwidth = 0;
5400 while (string < end) {
5401 int c = *(unsigned char *) string;
5402 unsigned char bytes = utf8_bytes[c];
5404 unsigned long unicode;
5406 if (string + bytes > end)
5409 /* Change representation to figure out whether
5410 * it is a single- or double-width character. */
5412 unicode = utf8_to_unicode(string, bytes);
5413 /* FIXME: Graceful handling of invalid unicode character. */
5417 ucwidth = unicode_width(unicode);
5419 if (*width > max_width) {
5422 if (reserve && *width == max_width) {
5423 string -= last_bytes;
5424 *width -= last_ucwidth;
5431 last_ucwidth = ucwidth;
5434 return string - start;
5442 /* Whether or not the curses interface has been initialized. */
5443 static bool cursed = FALSE;
5445 /* The status window is used for polling keystrokes. */
5446 static WINDOW *status_win;
5448 static bool status_empty = TRUE;
5450 /* Update status and title window. */
5452 report(const char *msg, ...)
5454 struct view *view = display[current_view];
5460 char buf[SIZEOF_STR];
5463 va_start(args, msg);
5464 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5465 buf[sizeof(buf) - 1] = 0;
5466 buf[sizeof(buf) - 2] = '.';
5467 buf[sizeof(buf) - 3] = '.';
5468 buf[sizeof(buf) - 4] = '.';
5474 if (!status_empty || *msg) {
5477 va_start(args, msg);
5479 wmove(status_win, 0, 0);
5481 vwprintw(status_win, msg, args);
5482 status_empty = FALSE;
5484 status_empty = TRUE;
5486 wclrtoeol(status_win);
5487 wrefresh(status_win);
5492 update_view_title(view);
5493 update_display_cursor(view);
5496 /* Controls when nodelay should be in effect when polling user input. */
5498 set_nonblocking_input(bool loading)
5500 static unsigned int loading_views;
5502 if ((loading == FALSE && loading_views-- == 1) ||
5503 (loading == TRUE && loading_views++ == 0))
5504 nodelay(status_win, loading);
5512 /* Initialize the curses library */
5513 if (isatty(STDIN_FILENO)) {
5514 cursed = !!initscr();
5516 /* Leave stdin and stdout alone when acting as a pager. */
5517 FILE *io = fopen("/dev/tty", "r+");
5520 die("Failed to open /dev/tty");
5521 cursed = !!newterm(NULL, io, io);
5525 die("Failed to initialize curses");
5527 nonl(); /* Tell curses not to do NL->CR/NL on output */
5528 cbreak(); /* Take input chars one at a time, no wait for \n */
5529 noecho(); /* Don't echo input */
5530 leaveok(stdscr, TRUE);
5535 getmaxyx(stdscr, y, x);
5536 status_win = newwin(1, 0, y - 1, 0);
5538 die("Failed to create status window");
5540 /* Enable keyboard mapping */
5541 keypad(status_win, TRUE);
5542 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5544 TABSIZE = opt_tab_size;
5545 if (opt_line_graphics) {
5546 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5551 prompt_yesno(const char *prompt)
5553 enum { WAIT, STOP, CANCEL } status = WAIT;
5554 bool answer = FALSE;
5556 while (status == WAIT) {
5562 foreach_view (view, i)
5567 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
5568 wclrtoeol(status_win);
5570 /* Refresh, accept single keystroke of input */
5571 key = wgetch(status_win);
5595 /* Clear the status window */
5596 status_empty = FALSE;
5603 read_prompt(const char *prompt)
5605 enum { READING, STOP, CANCEL } status = READING;
5606 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
5609 while (status == READING) {
5615 foreach_view (view, i)
5620 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5621 wclrtoeol(status_win);
5623 /* Refresh, accept single keystroke of input */
5624 key = wgetch(status_win);
5629 status = pos ? STOP : CANCEL;
5647 if (pos >= sizeof(buf)) {
5648 report("Input string too long");
5653 buf[pos++] = (char) key;
5657 /* Clear the status window */
5658 status_empty = FALSE;
5661 if (status == CANCEL)
5670 * Repository references
5673 static struct ref *refs = NULL;
5674 static size_t refs_alloc = 0;
5675 static size_t refs_size = 0;
5677 /* Id <-> ref store */
5678 static struct ref ***id_refs = NULL;
5679 static size_t id_refs_alloc = 0;
5680 static size_t id_refs_size = 0;
5682 static struct ref **
5685 struct ref ***tmp_id_refs;
5686 struct ref **ref_list = NULL;
5687 size_t ref_list_alloc = 0;
5688 size_t ref_list_size = 0;
5691 for (i = 0; i < id_refs_size; i++)
5692 if (!strcmp(id, id_refs[i][0]->id))
5695 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
5700 id_refs = tmp_id_refs;
5702 for (i = 0; i < refs_size; i++) {
5705 if (strcmp(id, refs[i].id))
5708 tmp = realloc_items(ref_list, &ref_list_alloc,
5709 ref_list_size + 1, sizeof(*ref_list));
5717 if (ref_list_size > 0)
5718 ref_list[ref_list_size - 1]->next = 1;
5719 ref_list[ref_list_size] = &refs[i];
5721 /* XXX: The properties of the commit chains ensures that we can
5722 * safely modify the shared ref. The repo references will
5723 * always be similar for the same id. */
5724 ref_list[ref_list_size]->next = 0;
5729 id_refs[id_refs_size++] = ref_list;
5735 read_ref(char *id, size_t idlen, char *name, size_t namelen)
5740 bool remote = FALSE;
5741 bool tracked = FALSE;
5742 bool check_replace = FALSE;
5745 if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) {
5746 if (!strcmp(name + namelen - 3, "^{}")) {
5749 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
5750 check_replace = TRUE;
5756 namelen -= STRING_SIZE("refs/tags/");
5757 name += STRING_SIZE("refs/tags/");
5759 } else if (!strncmp(name, "refs/remotes/", STRING_SIZE("refs/remotes/"))) {
5761 namelen -= STRING_SIZE("refs/remotes/");
5762 name += STRING_SIZE("refs/remotes/");
5763 tracked = !strcmp(opt_remote, name);
5765 } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5766 namelen -= STRING_SIZE("refs/heads/");
5767 name += STRING_SIZE("refs/heads/");
5768 head = !strncmp(opt_head, name, namelen);
5770 } else if (!strcmp(name, "HEAD")) {
5771 opt_no_head = FALSE;
5775 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
5776 /* it's an annotated tag, replace the previous sha1 with the
5777 * resolved commit id; relies on the fact git-ls-remote lists
5778 * the commit id of an annotated tag right beofre the commit id
5780 refs[refs_size - 1].ltag = ltag;
5781 string_copy_rev(refs[refs_size - 1].id, id);
5785 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
5789 ref = &refs[refs_size++];
5790 ref->name = malloc(namelen + 1);
5794 strncpy(ref->name, name, namelen);
5795 ref->name[namelen] = 0;
5799 ref->remote = remote;
5800 ref->tracked = tracked;
5801 string_copy_rev(ref->id, id);
5809 const char *cmd_env = getenv("TIG_LS_REMOTE");
5810 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
5815 while (refs_size > 0)
5816 free(refs[--refs_size].name);
5817 while (id_refs_size > 0)
5818 free(id_refs[--id_refs_size]);
5820 return read_properties(popen(cmd, "r"), "\t", read_ref);
5824 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
5826 if (!strcmp(name, "i18n.commitencoding"))
5827 string_ncopy(opt_encoding, value, valuelen);
5829 if (!strcmp(name, "core.editor"))
5830 string_ncopy(opt_editor, value, valuelen);
5832 /* branch.<head>.remote */
5834 !strncmp(name, "branch.", 7) &&
5835 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5836 !strcmp(name + 7 + strlen(opt_head), ".remote"))
5837 string_ncopy(opt_remote, value, valuelen);
5839 if (*opt_head && *opt_remote &&
5840 !strncmp(name, "branch.", 7) &&
5841 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5842 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
5843 size_t from = strlen(opt_remote);
5845 if (!strncmp(value, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5846 value += STRING_SIZE("refs/heads/");
5847 valuelen -= STRING_SIZE("refs/heads/");
5850 if (!string_format_from(opt_remote, &from, "/%s", value))
5858 load_git_config(void)
5860 return read_properties(popen("git " GIT_CONFIG " --list", "r"),
5861 "=", read_repo_config_option);
5865 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
5867 if (!opt_git_dir[0]) {
5868 string_ncopy(opt_git_dir, name, namelen);
5870 } else if (opt_is_inside_work_tree == -1) {
5871 /* This can be 3 different values depending on the
5872 * version of git being used. If git-rev-parse does not
5873 * understand --is-inside-work-tree it will simply echo
5874 * the option else either "true" or "false" is printed.
5875 * Default to true for the unknown case. */
5876 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
5878 } else if (opt_cdup[0] == ' ') {
5879 string_ncopy(opt_cdup, name, namelen);
5881 if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5882 namelen -= STRING_SIZE("refs/heads/");
5883 name += STRING_SIZE("refs/heads/");
5884 string_ncopy(opt_head, name, namelen);
5892 load_repo_info(void)
5895 FILE *pipe = popen("(git rev-parse --git-dir --is-inside-work-tree "
5896 " --show-cdup; git symbolic-ref HEAD) 2>/dev/null", "r");
5898 /* XXX: The line outputted by "--show-cdup" can be empty so
5899 * initialize it to something invalid to make it possible to
5900 * detect whether it has been set or not. */
5903 result = read_properties(pipe, "=", read_repo_info);
5904 if (opt_cdup[0] == ' ')
5911 read_properties(FILE *pipe, const char *separators,
5912 int (*read_property)(char *, size_t, char *, size_t))
5914 char buffer[BUFSIZ];
5921 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
5926 name = chomp_string(name);
5927 namelen = strcspn(name, separators);
5929 if (name[namelen]) {
5931 value = chomp_string(name + namelen + 1);
5932 valuelen = strlen(value);
5939 state = read_property(name, namelen, value, valuelen);
5942 if (state != ERR && ferror(pipe))
5955 static void __NORETURN
5958 /* XXX: Restore tty modes and let the OS cleanup the rest! */
5964 static void __NORETURN
5965 die(const char *err, ...)
5971 va_start(args, err);
5972 fputs("tig: ", stderr);
5973 vfprintf(stderr, err, args);
5974 fputs("\n", stderr);
5981 warn(const char *msg, ...)
5985 va_start(args, msg);
5986 fputs("tig warning: ", stderr);
5987 vfprintf(stderr, msg, args);
5988 fputs("\n", stderr);
5993 main(int argc, char *argv[])
5996 enum request request;
5999 signal(SIGINT, quit);
6001 if (setlocale(LC_ALL, "")) {
6002 char *codeset = nl_langinfo(CODESET);
6004 string_ncopy(opt_codeset, codeset, strlen(codeset));
6007 if (load_repo_info() == ERR)
6008 die("Failed to load repo info.");
6010 if (load_options() == ERR)
6011 die("Failed to load user config.");
6013 if (load_git_config() == ERR)
6014 die("Failed to load repo config.");
6016 request = parse_options(argc, argv);
6017 if (request == REQ_NONE)
6020 /* Require a git repository unless when running in pager mode. */
6021 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6022 die("Not a git repository");
6024 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6027 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6028 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6029 if (opt_iconv == ICONV_NONE)
6030 die("Failed to initialize character set conversion");
6033 if (load_refs() == ERR)
6034 die("Failed to load refs.");
6036 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
6037 view->cmd_env = getenv(view->cmd_env);
6041 while (view_driver(display[current_view], request)) {
6045 foreach_view (view, i)
6048 /* Refresh, accept single keystroke of input */
6049 key = wgetch(status_win);
6051 /* wgetch() with nodelay() enabled returns ERR when there's no
6058 request = get_keybinding(display[current_view]->keymap, key);
6060 /* Some low-level request handling. This keeps access to
6061 * status_win restricted. */
6065 char *cmd = read_prompt(":");
6067 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
6068 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
6069 request = REQ_VIEW_DIFF;
6071 request = REQ_VIEW_PAGER;
6074 /* Always reload^Wrerun commands from the prompt. */
6075 open_view(view, request, OPEN_RELOAD);
6082 case REQ_SEARCH_BACK:
6084 const char *prompt = request == REQ_SEARCH
6086 char *search = read_prompt(prompt);
6089 string_ncopy(opt_search, search, strlen(search));
6094 case REQ_SCREEN_RESIZE:
6098 getmaxyx(stdscr, height, width);
6100 /* Resize the status view and let the view driver take
6101 * care of resizing the displayed views. */
6102 wresize(status_win, 1, width);
6103 mvwin(status_win, height - 1, 0);
6104 wrefresh(status_win);