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;
2888 /* An unknown key will show most commonly used commands. */
2889 report("Unknown key, press 'h' for help");
2902 pager_draw(struct view *view, struct line *line, unsigned int lineno)
2904 char *text = line->data;
2906 if (opt_line_number && draw_lineno(view, lineno))
2909 draw_text(view, line->type, text, TRUE);
2914 add_describe_ref(char *buf, size_t *bufpos, char *commit_id, const char *sep)
2916 char refbuf[SIZEOF_STR];
2920 if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id))
2923 pipe = popen(refbuf, "r");
2927 if ((ref = fgets(refbuf, sizeof(refbuf), pipe)))
2928 ref = chomp_string(ref);
2934 /* This is the only fatal call, since it can "corrupt" the buffer. */
2935 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
2942 add_pager_refs(struct view *view, struct line *line)
2944 char buf[SIZEOF_STR];
2945 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
2947 size_t bufpos = 0, refpos = 0;
2948 const char *sep = "Refs: ";
2949 bool is_tag = FALSE;
2951 assert(line->type == LINE_COMMIT);
2953 refs = get_refs(commit_id);
2955 if (view == VIEW(REQ_VIEW_DIFF))
2956 goto try_add_describe_ref;
2961 struct ref *ref = refs[refpos];
2962 char *fmt = ref->tag ? "%s[%s]" :
2963 ref->remote ? "%s<%s>" : "%s%s";
2965 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
2970 } while (refs[refpos++]->next);
2972 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
2973 try_add_describe_ref:
2974 /* Add <tag>-g<commit_id> "fake" reference. */
2975 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
2982 if (!realloc_lines(view, view->line_size + 1))
2985 add_line_text(view, buf, LINE_PP_REFS);
2989 pager_read(struct view *view, char *data)
2996 line = add_line_text(view, data, get_line_type(data));
3000 if (line->type == LINE_COMMIT &&
3001 (view == VIEW(REQ_VIEW_DIFF) ||
3002 view == VIEW(REQ_VIEW_LOG)))
3003 add_pager_refs(view, line);
3009 pager_request(struct view *view, enum request request, struct line *line)
3013 if (request != REQ_ENTER)
3016 if (line->type == LINE_COMMIT &&
3017 (view == VIEW(REQ_VIEW_LOG) ||
3018 view == VIEW(REQ_VIEW_PAGER))) {
3019 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3023 /* Always scroll the view even if it was split. That way
3024 * you can use Enter to scroll through the log view and
3025 * split open each commit diff. */
3026 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3028 /* FIXME: A minor workaround. Scrolling the view will call report("")
3029 * but if we are scrolling a non-current view this won't properly
3030 * update the view title. */
3032 update_view_title(view);
3038 pager_grep(struct view *view, struct line *line)
3041 char *text = line->data;
3046 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3053 pager_select(struct view *view, struct line *line)
3055 if (line->type == LINE_COMMIT) {
3056 char *text = (char *)line->data + STRING_SIZE("commit ");
3058 if (view != VIEW(REQ_VIEW_PAGER))
3059 string_copy_rev(view->ref, text);
3060 string_copy_rev(ref_commit, text);
3064 static struct view_ops pager_ops = {
3075 log_request(struct view *view, enum request request, struct line *line)
3080 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3083 return pager_request(view, request, line);
3087 static struct view_ops log_ops = {
3103 help_open(struct view *view)
3106 int lines = ARRAY_SIZE(req_info) + 2;
3109 if (view->lines > 0)
3112 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3113 if (!req_info[i].request)
3116 lines += run_requests + 1;
3118 view->line = calloc(lines, sizeof(*view->line));
3122 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3124 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3127 if (req_info[i].request == REQ_NONE)
3130 if (!req_info[i].request) {
3131 add_line_text(view, "", LINE_DEFAULT);
3132 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3136 key = get_key(req_info[i].request);
3138 key = "(no key defined)";
3140 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
3143 add_line_text(view, buf, LINE_DEFAULT);
3147 add_line_text(view, "", LINE_DEFAULT);
3148 add_line_text(view, "External commands:", LINE_DEFAULT);
3151 for (i = 0; i < run_requests; i++) {
3152 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3158 key = get_key_name(req->key);
3160 key = "(no key defined)";
3162 if (!string_format(buf, " %-10s %-14s `%s`",
3163 keymap_table[req->keymap].name,
3167 add_line_text(view, buf, LINE_DEFAULT);
3173 static struct view_ops help_ops = {
3188 struct tree_stack_entry {
3189 struct tree_stack_entry *prev; /* Entry below this in the stack */
3190 unsigned long lineno; /* Line number to restore */
3191 char *name; /* Position of name in opt_path */
3194 /* The top of the path stack. */
3195 static struct tree_stack_entry *tree_stack = NULL;
3196 unsigned long tree_lineno = 0;
3199 pop_tree_stack_entry(void)
3201 struct tree_stack_entry *entry = tree_stack;
3203 tree_lineno = entry->lineno;
3205 tree_stack = entry->prev;
3210 push_tree_stack_entry(char *name, unsigned long lineno)
3212 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3213 size_t pathlen = strlen(opt_path);
3218 entry->prev = tree_stack;
3219 entry->name = opt_path + pathlen;
3222 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3223 pop_tree_stack_entry();
3227 /* Move the current line to the first tree entry. */
3229 entry->lineno = lineno;
3232 /* Parse output from git-ls-tree(1):
3234 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3235 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3236 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3237 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3240 #define SIZEOF_TREE_ATTR \
3241 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3243 #define TREE_UP_FORMAT "040000 tree %s\t.."
3246 tree_compare_entry(enum line_type type1, char *name1,
3247 enum line_type type2, char *name2)
3249 if (type1 != type2) {
3250 if (type1 == LINE_TREE_DIR)
3255 return strcmp(name1, name2);
3259 tree_path(struct line *line)
3261 char *path = line->data;
3263 return path + SIZEOF_TREE_ATTR;
3267 tree_read(struct view *view, char *text)
3269 size_t textlen = text ? strlen(text) : 0;
3270 char buf[SIZEOF_STR];
3272 enum line_type type;
3273 bool first_read = view->lines == 0;
3277 if (textlen <= SIZEOF_TREE_ATTR)
3280 type = text[STRING_SIZE("100644 ")] == 't'
3281 ? LINE_TREE_DIR : LINE_TREE_FILE;
3284 /* Add path info line */
3285 if (!string_format(buf, "Directory path /%s", opt_path) ||
3286 !realloc_lines(view, view->line_size + 1) ||
3287 !add_line_text(view, buf, LINE_DEFAULT))
3290 /* Insert "link" to parent directory. */
3292 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
3293 !realloc_lines(view, view->line_size + 1) ||
3294 !add_line_text(view, buf, LINE_TREE_DIR))
3299 /* Strip the path part ... */
3301 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3302 size_t striplen = strlen(opt_path);
3303 char *path = text + SIZEOF_TREE_ATTR;
3305 if (pathlen > striplen)
3306 memmove(path, path + striplen,
3307 pathlen - striplen + 1);
3310 /* Skip "Directory ..." and ".." line. */
3311 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
3312 struct line *line = &view->line[pos];
3313 char *path1 = tree_path(line);
3314 char *path2 = text + SIZEOF_TREE_ATTR;
3315 int cmp = tree_compare_entry(line->type, path1, type, path2);
3320 text = strdup(text);
3324 if (view->lines > pos)
3325 memmove(&view->line[pos + 1], &view->line[pos],
3326 (view->lines - pos) * sizeof(*line));
3328 line = &view->line[pos];
3335 if (!add_line_text(view, text, type))
3338 if (tree_lineno > view->lineno) {
3339 view->lineno = tree_lineno;
3347 tree_request(struct view *view, enum request request, struct line *line)
3349 enum open_flags flags;
3351 if (request == REQ_VIEW_BLAME) {
3352 char *filename = tree_path(line);
3354 if (line->type == LINE_TREE_DIR) {
3355 report("Cannot show blame for directory %s", opt_path);
3359 string_copy(opt_ref, view->vid);
3360 string_format(opt_file, "%s%s", opt_path, filename);
3363 if (request == REQ_TREE_PARENT) {
3366 request = REQ_ENTER;
3367 line = &view->line[1];
3369 /* quit view if at top of tree */
3370 return REQ_VIEW_CLOSE;
3373 if (request != REQ_ENTER)
3376 /* Cleanup the stack if the tree view is at a different tree. */
3377 while (!*opt_path && tree_stack)
3378 pop_tree_stack_entry();
3380 switch (line->type) {
3382 /* Depending on whether it is a subdir or parent (updir?) link
3383 * mangle the path buffer. */
3384 if (line == &view->line[1] && *opt_path) {
3385 pop_tree_stack_entry();
3388 char *basename = tree_path(line);
3390 push_tree_stack_entry(basename, view->lineno);
3393 /* Trees and subtrees share the same ID, so they are not not
3394 * unique like blobs. */
3395 flags = OPEN_RELOAD;
3396 request = REQ_VIEW_TREE;
3399 case LINE_TREE_FILE:
3400 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3401 request = REQ_VIEW_BLOB;
3408 open_view(view, request, flags);
3409 if (request == REQ_VIEW_TREE) {
3410 view->lineno = tree_lineno;
3417 tree_select(struct view *view, struct line *line)
3419 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3421 if (line->type == LINE_TREE_FILE) {
3422 string_copy_rev(ref_blob, text);
3424 } else if (line->type != LINE_TREE_DIR) {
3428 string_copy_rev(view->ref, text);
3431 static struct view_ops tree_ops = {
3442 blob_read(struct view *view, char *line)
3446 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3449 static struct view_ops blob_ops = {
3462 * Loading the blame view is a two phase job:
3464 * 1. File content is read either using opt_file from the
3465 * filesystem or using git-cat-file.
3466 * 2. Then blame information is incrementally added by
3467 * reading output from git-blame.
3470 struct blame_commit {
3471 char id[SIZEOF_REV]; /* SHA1 ID. */
3472 char title[128]; /* First line of the commit message. */
3473 char author[75]; /* Author of the commit. */
3474 struct tm time; /* Date from the author ident. */
3475 char filename[128]; /* Name of file. */
3479 struct blame_commit *commit;
3480 unsigned int header:1;
3484 #define BLAME_CAT_FILE_CMD "git cat-file blob %s:%s"
3485 #define BLAME_INCREMENTAL_CMD "git blame --incremental %s %s"
3488 blame_open(struct view *view)
3490 char path[SIZEOF_STR];
3491 char ref[SIZEOF_STR] = "";
3493 if (sq_quote(path, 0, opt_file) >= sizeof(path))
3496 if (*opt_ref && sq_quote(ref, 0, opt_ref) >= sizeof(ref))
3500 if (!string_format(view->cmd, BLAME_CAT_FILE_CMD, ref, path))
3503 view->pipe = fopen(opt_file, "r");
3505 !string_format(view->cmd, BLAME_CAT_FILE_CMD, "HEAD", path))
3510 view->pipe = popen(view->cmd, "r");
3514 if (!string_format(view->cmd, BLAME_INCREMENTAL_CMD, ref, path))
3517 string_format(view->ref, "%s ...", opt_file);
3518 string_copy_rev(view->vid, opt_file);
3519 set_nonblocking_input(TRUE);
3524 for (i = 0; i < view->lines; i++)
3525 free(view->line[i].data);
3529 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
3530 view->offset = view->lines = view->lineno = 0;
3532 view->start_time = time(NULL);
3537 static struct blame_commit *
3538 get_blame_commit(struct view *view, const char *id)
3542 for (i = 0; i < view->lines; i++) {
3543 struct blame *blame = view->line[i].data;
3548 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3549 return blame->commit;
3553 struct blame_commit *commit = calloc(1, sizeof(*commit));
3556 string_ncopy(commit->id, id, SIZEOF_REV);
3562 parse_number(char **posref, size_t *number, size_t min, size_t max)
3564 char *pos = *posref;
3567 pos = strchr(pos + 1, ' ');
3568 if (!pos || !isdigit(pos[1]))
3570 *number = atoi(pos + 1);
3571 if (*number < min || *number > max)
3578 static struct blame_commit *
3579 parse_blame_commit(struct view *view, char *text, int *blamed)
3581 struct blame_commit *commit;
3582 struct blame *blame;
3583 char *pos = text + SIZEOF_REV - 1;
3587 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3590 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3591 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3594 commit = get_blame_commit(view, text);
3600 struct line *line = &view->line[lineno + group - 1];
3603 blame->commit = commit;
3604 blame->header = !group;
3612 blame_read_file(struct view *view, char *line)
3617 if (view->lines > 0)
3618 pipe = popen(view->cmd, "r");
3619 else if (!view->parent)
3620 die("No blame exist for %s", view->vid);
3623 report("Failed to load blame data");
3632 size_t linelen = strlen(line);
3633 struct blame *blame = malloc(sizeof(*blame) + linelen);
3635 blame->commit = NULL;
3636 strncpy(blame->text, line, linelen);
3637 blame->text[linelen] = 0;
3638 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3643 match_blame_header(const char *name, char **line)
3645 size_t namelen = strlen(name);
3646 bool matched = !strncmp(name, *line, namelen);
3655 blame_read(struct view *view, char *line)
3657 static struct blame_commit *commit = NULL;
3658 static int blamed = 0;
3659 static time_t author_time;
3662 return blame_read_file(view, line);
3668 string_format(view->ref, "%s", view->vid);
3669 if (view_is_displayed(view)) {
3670 update_view_title(view);
3671 redraw_view_from(view, 0);
3677 commit = parse_blame_commit(view, line, &blamed);
3678 string_format(view->ref, "%s %2d%%", view->vid,
3679 blamed * 100 / view->lines);
3681 } else if (match_blame_header("author ", &line)) {
3682 string_ncopy(commit->author, line, strlen(line));
3684 } else if (match_blame_header("author-time ", &line)) {
3685 author_time = (time_t) atol(line);
3687 } else if (match_blame_header("author-tz ", &line)) {
3690 tz = ('0' - line[1]) * 60 * 60 * 10;
3691 tz += ('0' - line[2]) * 60 * 60;
3692 tz += ('0' - line[3]) * 60;
3693 tz += ('0' - line[4]) * 60;
3699 gmtime_r(&author_time, &commit->time);
3701 } else if (match_blame_header("summary ", &line)) {
3702 string_ncopy(commit->title, line, strlen(line));
3704 } else if (match_blame_header("filename ", &line)) {
3705 string_ncopy(commit->filename, line, strlen(line));
3713 blame_draw(struct view *view, struct line *line, unsigned int lineno)
3715 struct blame *blame = line->data;
3716 struct tm *time = NULL;
3717 char *id = NULL, *author = NULL;
3719 if (blame->commit && *blame->commit->filename) {
3720 id = blame->commit->id;
3721 author = blame->commit->author;
3722 time = &blame->commit->time;
3725 if (opt_date && draw_date(view, time))
3729 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
3732 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
3735 if (draw_lineno(view, lineno))
3738 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
3743 blame_request(struct view *view, enum request request, struct line *line)
3745 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3746 struct blame *blame = line->data;
3750 if (!blame->commit) {
3751 report("No commit loaded yet");
3755 if (!strcmp(blame->commit->id, NULL_ID)) {
3756 char path[SIZEOF_STR];
3758 if (sq_quote(path, 0, view->vid) >= sizeof(path))
3760 string_format(opt_cmd, "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s 2>/dev/null", path);
3763 open_view(view, REQ_VIEW_DIFF, flags);
3774 blame_grep(struct view *view, struct line *line)
3776 struct blame *blame = line->data;
3777 struct blame_commit *commit = blame->commit;
3780 #define MATCH(text, on) \
3781 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3784 char buf[DATE_COLS + 1];
3786 if (MATCH(commit->title, 1) ||
3787 MATCH(commit->author, opt_author) ||
3788 MATCH(commit->id, opt_date))
3791 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
3796 return MATCH(blame->text, 1);
3802 blame_select(struct view *view, struct line *line)
3804 struct blame *blame = line->data;
3805 struct blame_commit *commit = blame->commit;
3810 if (!strcmp(commit->id, NULL_ID))
3811 string_ncopy(ref_commit, "HEAD", 4);
3813 string_copy_rev(ref_commit, commit->id);
3816 static struct view_ops blame_ops = {
3834 char rev[SIZEOF_REV];
3835 char name[SIZEOF_STR];
3839 char rev[SIZEOF_REV];
3840 char name[SIZEOF_STR];
3844 static char status_onbranch[SIZEOF_STR];
3845 static struct status stage_status;
3846 static enum line_type stage_line_type;
3847 static size_t stage_chunks;
3848 static int *stage_chunk;
3850 /* This should work even for the "On branch" line. */
3852 status_has_none(struct view *view, struct line *line)
3854 return line < view->line + view->lines && !line[1].data;
3857 /* Get fields from the diff line:
3858 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3861 status_get_diff(struct status *file, char *buf, size_t bufsize)
3863 char *old_mode = buf + 1;
3864 char *new_mode = buf + 8;
3865 char *old_rev = buf + 15;
3866 char *new_rev = buf + 56;
3867 char *status = buf + 97;
3870 old_mode[-1] != ':' ||
3871 new_mode[-1] != ' ' ||
3872 old_rev[-1] != ' ' ||
3873 new_rev[-1] != ' ' ||
3877 file->status = *status;
3879 string_copy_rev(file->old.rev, old_rev);
3880 string_copy_rev(file->new.rev, new_rev);
3882 file->old.mode = strtoul(old_mode, NULL, 8);
3883 file->new.mode = strtoul(new_mode, NULL, 8);
3885 file->old.name[0] = file->new.name[0] = 0;
3891 status_run(struct view *view, const char cmd[], char status, enum line_type type)
3893 struct status *file = NULL;
3894 struct status *unmerged = NULL;
3895 char buf[SIZEOF_STR * 4];
3899 pipe = popen(cmd, "r");
3903 add_line_data(view, NULL, type);
3905 while (!feof(pipe) && !ferror(pipe)) {
3909 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3912 bufsize += readsize;
3914 /* Process while we have NUL chars. */
3915 while ((sep = memchr(buf, 0, bufsize))) {
3916 size_t sepsize = sep - buf + 1;
3919 if (!realloc_lines(view, view->line_size + 1))
3922 file = calloc(1, sizeof(*file));
3926 add_line_data(view, file, type);
3929 /* Parse diff info part. */
3931 file->status = status;
3933 string_copy(file->old.rev, NULL_ID);
3935 } else if (!file->status) {
3936 if (!status_get_diff(file, buf, sepsize))
3940 memmove(buf, sep + 1, bufsize);
3942 sep = memchr(buf, 0, bufsize);
3945 sepsize = sep - buf + 1;
3947 /* Collapse all 'M'odified entries that
3948 * follow a associated 'U'nmerged entry.
3950 if (file->status == 'U') {
3953 } else if (unmerged) {
3954 int collapse = !strcmp(buf, unmerged->new.name);
3965 /* Grab the old name for rename/copy. */
3966 if (!*file->old.name &&
3967 (file->status == 'R' || file->status == 'C')) {
3968 sepsize = sep - buf + 1;
3969 string_ncopy(file->old.name, buf, sepsize);
3971 memmove(buf, sep + 1, bufsize);
3973 sep = memchr(buf, 0, bufsize);
3976 sepsize = sep - buf + 1;
3979 /* git-ls-files just delivers a NUL separated
3980 * list of file names similar to the second half
3981 * of the git-diff-* output. */
3982 string_ncopy(file->new.name, buf, sepsize);
3983 if (!*file->old.name)
3984 string_copy(file->old.name, file->new.name);
3986 memmove(buf, sep + 1, bufsize);
3997 if (!view->line[view->lines - 1].data)
3998 add_line_data(view, NULL, LINE_STAT_NONE);
4004 /* Don't show unmerged entries in the staged section. */
4005 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD"
4006 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
4007 #define STATUS_LIST_OTHER_CMD \
4008 "git ls-files -z --others --exclude-standard"
4009 #define STATUS_LIST_NO_HEAD_CMD \
4010 "git ls-files -z --cached --exclude-standard"
4012 #define STATUS_DIFF_INDEX_SHOW_CMD \
4013 "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null"
4015 #define STATUS_DIFF_FILES_SHOW_CMD \
4016 "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null"
4018 #define STATUS_DIFF_NO_HEAD_SHOW_CMD \
4019 "git diff --no-color --patch-with-stat /dev/null %s 2>/dev/null"
4021 /* First parse staged info using git-diff-index(1), then parse unstaged
4022 * info using git-diff-files(1), and finally untracked files using
4023 * git-ls-files(1). */
4025 status_open(struct view *view)
4027 unsigned long prev_lineno = view->lineno;
4030 for (i = 0; i < view->lines; i++)
4031 free(view->line[i].data);
4033 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
4036 if (!realloc_lines(view, view->line_size + 7))
4039 add_line_data(view, NULL, LINE_STAT_HEAD);
4041 string_copy(status_onbranch, "Initial commit");
4042 else if (!*opt_head)
4043 string_copy(status_onbranch, "Not currently on any branch");
4044 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4047 system("git update-index -q --refresh >/dev/null 2>/dev/null");
4050 if (!status_run(view, STATUS_LIST_NO_HEAD_CMD, 'A', LINE_STAT_STAGED))
4052 } else if (!status_run(view, STATUS_DIFF_INDEX_CMD, 0, LINE_STAT_STAGED)) {
4056 if (!status_run(view, STATUS_DIFF_FILES_CMD, 0, LINE_STAT_UNSTAGED) ||
4057 !status_run(view, STATUS_LIST_OTHER_CMD, '?', LINE_STAT_UNTRACKED))
4060 /* If all went well restore the previous line number to stay in
4061 * the context or select a line with something that can be
4063 if (prev_lineno >= view->lines)
4064 prev_lineno = view->lines - 1;
4065 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4067 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4070 /* If the above fails, always skip the "On branch" line. */
4071 if (prev_lineno < view->lines)
4072 view->lineno = prev_lineno;
4076 if (view->lineno < view->offset)
4077 view->offset = view->lineno;
4078 else if (view->offset + view->height <= view->lineno)
4079 view->offset = view->lineno - view->height + 1;
4085 status_draw(struct view *view, struct line *line, unsigned int lineno)
4087 struct status *status = line->data;
4088 enum line_type type;
4092 switch (line->type) {
4093 case LINE_STAT_STAGED:
4094 type = LINE_STAT_SECTION;
4095 text = "Changes to be committed:";
4098 case LINE_STAT_UNSTAGED:
4099 type = LINE_STAT_SECTION;
4100 text = "Changed but not updated:";
4103 case LINE_STAT_UNTRACKED:
4104 type = LINE_STAT_SECTION;
4105 text = "Untracked files:";
4108 case LINE_STAT_NONE:
4109 type = LINE_DEFAULT;
4110 text = " (no files)";
4113 case LINE_STAT_HEAD:
4114 type = LINE_STAT_HEAD;
4115 text = status_onbranch;
4122 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4124 buf[0] = status->status;
4125 if (draw_text(view, line->type, buf, TRUE))
4127 type = LINE_DEFAULT;
4128 text = status->new.name;
4131 draw_text(view, type, text, TRUE);
4136 status_enter(struct view *view, struct line *line)
4138 struct status *status = line->data;
4139 char oldpath[SIZEOF_STR] = "";
4140 char newpath[SIZEOF_STR] = "";
4143 enum open_flags split;
4145 if (line->type == LINE_STAT_NONE ||
4146 (!status && line[1].type == LINE_STAT_NONE)) {
4147 report("No file to diff");
4152 if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath))
4154 /* Diffs for unmerged entries are empty when pasing the
4155 * new path, so leave it empty. */
4156 if (status->status != 'U' &&
4157 sq_quote(newpath, 0, status->new.name) >= sizeof(newpath))
4162 line->type != LINE_STAT_UNTRACKED &&
4163 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
4166 switch (line->type) {
4167 case LINE_STAT_STAGED:
4169 if (!string_format_from(opt_cmd, &cmdsize,
4170 STATUS_DIFF_NO_HEAD_SHOW_CMD,
4174 if (!string_format_from(opt_cmd, &cmdsize,
4175 STATUS_DIFF_INDEX_SHOW_CMD,
4181 info = "Staged changes to %s";
4183 info = "Staged changes";
4186 case LINE_STAT_UNSTAGED:
4187 if (!string_format_from(opt_cmd, &cmdsize,
4188 STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath))
4191 info = "Unstaged changes to %s";
4193 info = "Unstaged changes";
4196 case LINE_STAT_UNTRACKED:
4201 report("No file to show");
4205 opt_pipe = fopen(status->new.name, "r");
4206 info = "Untracked file %s";
4209 case LINE_STAT_HEAD:
4213 die("line type %d not handled in switch", line->type);
4216 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4217 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | split);
4218 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4220 stage_status = *status;
4222 memset(&stage_status, 0, sizeof(stage_status));
4225 stage_line_type = line->type;
4227 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4234 status_exists(struct status *status, enum line_type type)
4236 struct view *view = VIEW(REQ_VIEW_STATUS);
4239 for (line = view->line; line < view->line + view->lines; line++) {
4240 struct status *pos = line->data;
4242 if (line->type == type && pos &&
4243 !strcmp(status->new.name, pos->new.name))
4252 status_update_prepare(enum line_type type)
4254 char cmd[SIZEOF_STR];
4258 type != LINE_STAT_UNTRACKED &&
4259 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4263 case LINE_STAT_STAGED:
4264 string_add(cmd, cmdsize, "git update-index -z --index-info");
4267 case LINE_STAT_UNSTAGED:
4268 case LINE_STAT_UNTRACKED:
4269 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
4273 die("line type %d not handled in switch", type);
4276 return popen(cmd, "w");
4280 status_update_write(FILE *pipe, struct status *status, enum line_type type)
4282 char buf[SIZEOF_STR];
4287 case LINE_STAT_STAGED:
4288 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4291 status->old.name, 0))
4295 case LINE_STAT_UNSTAGED:
4296 case LINE_STAT_UNTRACKED:
4297 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4302 die("line type %d not handled in switch", type);
4305 while (!ferror(pipe) && written < bufsize) {
4306 written += fwrite(buf + written, 1, bufsize - written, pipe);
4309 return written == bufsize;
4313 status_update_file(struct status *status, enum line_type type)
4315 FILE *pipe = status_update_prepare(type);
4321 result = status_update_write(pipe, status, type);
4327 status_update_files(struct view *view, struct line *line)
4329 FILE *pipe = status_update_prepare(line->type);
4331 struct line *pos = view->line + view->lines;
4338 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4341 for (file = 0, done = 0; result && file < files; line++, file++) {
4342 int almost_done = file * 100 / files;
4344 if (almost_done > done) {
4346 string_format(view->ref, "updating file %u of %u (%d%% done)",
4348 update_view_title(view);
4350 result = status_update_write(pipe, line->data, line->type);
4358 status_update(struct view *view)
4360 struct line *line = &view->line[view->lineno];
4362 assert(view->lines);
4365 /* This should work even for the "On branch" line. */
4366 if (line < view->line + view->lines && !line[1].data) {
4367 report("Nothing to update");
4371 if (!status_update_files(view, line + 1)) {
4372 report("Failed to update file status");
4376 } else if (!status_update_file(line->data, line->type)) {
4377 report("Failed to update file status");
4385 status_checkout(struct status *status, enum line_type type, bool has_none)
4387 if (!status || type != LINE_STAT_UNSTAGED) {
4388 if (type == LINE_STAT_STAGED) {
4389 report("Cannot checkout staged files");
4390 } else if (type == LINE_STAT_UNTRACKED) {
4391 report("Cannot checkout untracked files");
4392 } else if (has_none) {
4393 report("Nothing to checkout");
4395 report("Cannot checkout multiple files");
4400 char cmd[SIZEOF_STR];
4401 char file_sq[SIZEOF_STR];
4403 if (sq_quote(file_sq, 0, status->old.name) >= sizeof(file_sq) ||
4404 !string_format(cmd, "git checkout %s%s", opt_cdup, file_sq))
4407 return run_confirm(cmd, "Are you sure you want to overwrite any changes?");
4412 status_request(struct view *view, enum request request, struct line *line)
4414 struct status *status = line->data;
4417 case REQ_STATUS_UPDATE:
4418 if (!status_update(view))
4422 case REQ_STATUS_CHECKOUT:
4423 if (!status_checkout(status, line->type, status_has_none(view, line)))
4427 case REQ_STATUS_MERGE:
4428 if (!status || status->status != 'U') {
4429 report("Merging only possible for files with unmerged status ('U').");
4432 open_mergetool(status->new.name);
4439 open_editor(status->status != '?', status->new.name);
4442 case REQ_VIEW_BLAME:
4444 string_copy(opt_file, status->new.name);
4450 /* After returning the status view has been split to
4451 * show the stage view. No further reloading is
4453 status_enter(view, line);
4457 /* Simply reload the view. */
4464 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4470 status_select(struct view *view, struct line *line)
4472 struct status *status = line->data;
4473 char file[SIZEOF_STR] = "all files";
4477 if (status && !string_format(file, "'%s'", status->new.name))
4480 if (!status && line[1].type == LINE_STAT_NONE)
4483 switch (line->type) {
4484 case LINE_STAT_STAGED:
4485 text = "Press %s to unstage %s for commit";
4488 case LINE_STAT_UNSTAGED:
4489 text = "Press %s to stage %s for commit";
4492 case LINE_STAT_UNTRACKED:
4493 text = "Press %s to stage %s for addition";
4496 case LINE_STAT_HEAD:
4497 case LINE_STAT_NONE:
4498 text = "Nothing to update";
4502 die("line type %d not handled in switch", line->type);
4505 if (status && status->status == 'U') {
4506 text = "Press %s to resolve conflict in %s";
4507 key = get_key(REQ_STATUS_MERGE);
4510 key = get_key(REQ_STATUS_UPDATE);
4513 string_format(view->ref, text, key, file);
4517 status_grep(struct view *view, struct line *line)
4519 struct status *status = line->data;
4520 enum { S_STATUS, S_NAME, S_END } state;
4527 for (state = S_STATUS; state < S_END; state++) {
4531 case S_NAME: text = status->new.name; break;
4533 buf[0] = status->status;
4541 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4548 static struct view_ops status_ops = {
4560 stage_diff_line(FILE *pipe, struct line *line)
4562 char *buf = line->data;
4563 size_t bufsize = strlen(buf);
4566 while (!ferror(pipe) && written < bufsize) {
4567 written += fwrite(buf + written, 1, bufsize - written, pipe);
4572 return written == bufsize;
4576 stage_diff_write(FILE *pipe, struct line *line, struct line *end)
4578 while (line < end) {
4579 if (!stage_diff_line(pipe, line++))
4581 if (line->type == LINE_DIFF_CHUNK ||
4582 line->type == LINE_DIFF_HEADER)
4589 static struct line *
4590 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4592 for (; view->line < line; line--)
4593 if (line->type == type)
4600 stage_update_chunk(struct view *view, struct line *chunk)
4602 char cmd[SIZEOF_STR];
4604 struct line *diff_hdr;
4607 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4612 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4615 if (!string_format_from(cmd, &cmdsize,
4616 "git apply --whitespace=nowarn --cached %s - && "
4617 "git update-index -q --unmerged --refresh 2>/dev/null",
4618 stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
4621 pipe = popen(cmd, "w");
4625 if (!stage_diff_write(pipe, diff_hdr, chunk) ||
4626 !stage_diff_write(pipe, chunk, view->line + view->lines))
4631 return chunk ? TRUE : FALSE;
4635 stage_update(struct view *view, struct line *line)
4637 struct line *chunk = NULL;
4639 if (!opt_no_head && stage_line_type != LINE_STAT_UNTRACKED)
4640 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4643 if (!stage_update_chunk(view, chunk)) {
4644 report("Failed to apply chunk");
4648 } else if (!stage_status.status) {
4649 view = VIEW(REQ_VIEW_STATUS);
4651 for (line = view->line; line < view->line + view->lines; line++)
4652 if (line->type == stage_line_type)
4655 if (!status_update_files(view, line + 1)) {
4656 report("Failed to update files");
4660 } else if (!status_update_file(&stage_status, stage_line_type)) {
4661 report("Failed to update file");
4669 stage_next(struct view *view, struct line *line)
4673 if (!stage_chunks) {
4674 static size_t alloc = 0;
4677 for (line = view->line; line < view->line + view->lines; line++) {
4678 if (line->type != LINE_DIFF_CHUNK)
4681 tmp = realloc_items(stage_chunk, &alloc,
4682 stage_chunks, sizeof(*tmp));
4684 report("Allocation failure");
4689 stage_chunk[stage_chunks++] = line - view->line;
4693 for (i = 0; i < stage_chunks; i++) {
4694 if (stage_chunk[i] > view->lineno) {
4695 do_scroll_view(view, stage_chunk[i] - view->lineno);
4696 report("Chunk %d of %d", i + 1, stage_chunks);
4701 report("No next chunk found");
4705 stage_request(struct view *view, enum request request, struct line *line)
4708 case REQ_STATUS_UPDATE:
4709 if (!stage_update(view, line))
4713 case REQ_STATUS_CHECKOUT:
4714 if (!status_checkout(stage_status.status ? &stage_status : NULL,
4715 stage_line_type, FALSE))
4719 case REQ_STAGE_NEXT:
4720 if (stage_line_type == LINE_STAT_UNTRACKED) {
4721 report("File is untracked; press %s to add",
4722 get_key(REQ_STATUS_UPDATE));
4725 stage_next(view, line);
4729 if (!stage_status.new.name[0])
4732 open_editor(stage_status.status != '?', stage_status.new.name);
4736 /* Reload everything ... */
4739 case REQ_VIEW_BLAME:
4740 if (stage_status.new.name[0]) {
4741 string_copy(opt_file, stage_status.new.name);
4747 return pager_request(view, request, line);
4753 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4755 /* Check whether the staged entry still exists, and close the
4756 * stage view if it doesn't. */
4757 if (!status_exists(&stage_status, stage_line_type))
4758 return REQ_VIEW_CLOSE;
4760 if (stage_line_type == LINE_STAT_UNTRACKED)
4761 opt_pipe = fopen(stage_status.new.name, "r");
4762 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
4767 static struct view_ops stage_ops = {
4783 char id[SIZEOF_REV]; /* SHA1 ID. */
4784 char title[128]; /* First line of the commit message. */
4785 char author[75]; /* Author of the commit. */
4786 struct tm time; /* Date from the author ident. */
4787 struct ref **refs; /* Repository references. */
4788 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
4789 size_t graph_size; /* The width of the graph array. */
4790 bool has_parents; /* Rewritten --parents seen. */
4793 /* Size of rev graph with no "padding" columns */
4794 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
4797 struct rev_graph *prev, *next, *parents;
4798 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
4800 struct commit *commit;
4802 unsigned int boundary:1;
4805 /* Parents of the commit being visualized. */
4806 static struct rev_graph graph_parents[4];
4808 /* The current stack of revisions on the graph. */
4809 static struct rev_graph graph_stacks[4] = {
4810 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
4811 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
4812 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
4813 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
4817 graph_parent_is_merge(struct rev_graph *graph)
4819 return graph->parents->size > 1;
4823 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
4825 struct commit *commit = graph->commit;
4827 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
4828 commit->graph[commit->graph_size++] = symbol;
4832 clear_rev_graph(struct rev_graph *graph)
4834 graph->boundary = 0;
4835 graph->size = graph->pos = 0;
4836 graph->commit = NULL;
4837 memset(graph->parents, 0, sizeof(*graph->parents));
4841 done_rev_graph(struct rev_graph *graph)
4843 if (graph_parent_is_merge(graph) &&
4844 graph->pos < graph->size - 1 &&
4845 graph->next->size == graph->size + graph->parents->size - 1) {
4846 size_t i = graph->pos + graph->parents->size - 1;
4848 graph->commit->graph_size = i * 2;
4849 while (i < graph->next->size - 1) {
4850 append_to_rev_graph(graph, ' ');
4851 append_to_rev_graph(graph, '\\');
4856 clear_rev_graph(graph);
4860 push_rev_graph(struct rev_graph *graph, char *parent)
4864 /* "Collapse" duplicate parents lines.
4866 * FIXME: This needs to also update update the drawn graph but
4867 * for now it just serves as a method for pruning graph lines. */
4868 for (i = 0; i < graph->size; i++)
4869 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
4872 if (graph->size < SIZEOF_REVITEMS) {
4873 string_copy_rev(graph->rev[graph->size++], parent);
4878 get_rev_graph_symbol(struct rev_graph *graph)
4882 if (graph->boundary)
4883 symbol = REVGRAPH_BOUND;
4884 else if (graph->parents->size == 0)
4885 symbol = REVGRAPH_INIT;
4886 else if (graph_parent_is_merge(graph))
4887 symbol = REVGRAPH_MERGE;
4888 else if (graph->pos >= graph->size)
4889 symbol = REVGRAPH_BRANCH;
4891 symbol = REVGRAPH_COMMIT;
4897 draw_rev_graph(struct rev_graph *graph)
4900 chtype separator, line;
4902 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
4903 static struct rev_filler fillers[] = {
4909 chtype symbol = get_rev_graph_symbol(graph);
4910 struct rev_filler *filler;
4913 if (opt_line_graphics)
4914 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
4916 filler = &fillers[DEFAULT];
4918 for (i = 0; i < graph->pos; i++) {
4919 append_to_rev_graph(graph, filler->line);
4920 if (graph_parent_is_merge(graph->prev) &&
4921 graph->prev->pos == i)
4922 filler = &fillers[RSHARP];
4924 append_to_rev_graph(graph, filler->separator);
4927 /* Place the symbol for this revision. */
4928 append_to_rev_graph(graph, symbol);
4930 if (graph->prev->size > graph->size)
4931 filler = &fillers[RDIAG];
4933 filler = &fillers[DEFAULT];
4937 for (; i < graph->size; i++) {
4938 append_to_rev_graph(graph, filler->separator);
4939 append_to_rev_graph(graph, filler->line);
4940 if (graph_parent_is_merge(graph->prev) &&
4941 i < graph->prev->pos + graph->parents->size)
4942 filler = &fillers[RSHARP];
4943 if (graph->prev->size > graph->size)
4944 filler = &fillers[LDIAG];
4947 if (graph->prev->size > graph->size) {
4948 append_to_rev_graph(graph, filler->separator);
4949 if (filler->line != ' ')
4950 append_to_rev_graph(graph, filler->line);
4954 /* Prepare the next rev graph */
4956 prepare_rev_graph(struct rev_graph *graph)
4960 /* First, traverse all lines of revisions up to the active one. */
4961 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
4962 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
4965 push_rev_graph(graph->next, graph->rev[graph->pos]);
4968 /* Interleave the new revision parent(s). */
4969 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
4970 push_rev_graph(graph->next, graph->parents->rev[i]);
4972 /* Lastly, put any remaining revisions. */
4973 for (i = graph->pos + 1; i < graph->size; i++)
4974 push_rev_graph(graph->next, graph->rev[i]);
4978 update_rev_graph(struct rev_graph *graph)
4980 /* If this is the finalizing update ... */
4982 prepare_rev_graph(graph);
4984 /* Graph visualization needs a one rev look-ahead,
4985 * so the first update doesn't visualize anything. */
4986 if (!graph->prev->commit)
4989 draw_rev_graph(graph->prev);
4990 done_rev_graph(graph->prev->prev);
4999 main_draw(struct view *view, struct line *line, unsigned int lineno)
5001 struct commit *commit = line->data;
5003 if (!*commit->author)
5006 if (opt_date && draw_date(view, &commit->time))
5010 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5013 if (opt_rev_graph && commit->graph_size &&
5014 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5017 if (opt_show_refs && commit->refs) {
5021 enum line_type type;
5023 if (commit->refs[i]->head)
5024 type = LINE_MAIN_HEAD;
5025 else if (commit->refs[i]->ltag)
5026 type = LINE_MAIN_LOCAL_TAG;
5027 else if (commit->refs[i]->tag)
5028 type = LINE_MAIN_TAG;
5029 else if (commit->refs[i]->tracked)
5030 type = LINE_MAIN_TRACKED;
5031 else if (commit->refs[i]->remote)
5032 type = LINE_MAIN_REMOTE;
5034 type = LINE_MAIN_REF;
5036 if (draw_text(view, type, "[", TRUE) ||
5037 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5038 draw_text(view, type, "]", TRUE))
5041 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5043 } while (commit->refs[i++]->next);
5046 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5050 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5052 main_read(struct view *view, char *line)
5054 static struct rev_graph *graph = graph_stacks;
5055 enum line_type type;
5056 struct commit *commit;
5061 if (!view->lines && !view->parent)
5062 die("No revisions match the given arguments.");
5063 if (view->lines > 0) {
5064 commit = view->line[view->lines - 1].data;
5065 if (!*commit->author) {
5068 graph->commit = NULL;
5071 update_rev_graph(graph);
5073 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5074 clear_rev_graph(&graph_stacks[i]);
5078 type = get_line_type(line);
5079 if (type == LINE_COMMIT) {
5080 commit = calloc(1, sizeof(struct commit));
5084 line += STRING_SIZE("commit ");
5086 graph->boundary = 1;
5090 string_copy_rev(commit->id, line);
5091 commit->refs = get_refs(commit->id);
5092 graph->commit = commit;
5093 add_line_data(view, commit, LINE_MAIN_COMMIT);
5095 while ((line = strchr(line, ' '))) {
5097 push_rev_graph(graph->parents, line);
5098 commit->has_parents = TRUE;
5105 commit = view->line[view->lines - 1].data;
5109 if (commit->has_parents)
5111 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5116 /* Parse author lines where the name may be empty:
5117 * author <email@address.tld> 1138474660 +0100
5119 char *ident = line + STRING_SIZE("author ");
5120 char *nameend = strchr(ident, '<');
5121 char *emailend = strchr(ident, '>');
5123 if (!nameend || !emailend)
5126 update_rev_graph(graph);
5127 graph = graph->next;
5129 *nameend = *emailend = 0;
5130 ident = chomp_string(ident);
5132 ident = chomp_string(nameend + 1);
5137 string_ncopy(commit->author, ident, strlen(ident));
5139 /* Parse epoch and timezone */
5140 if (emailend[1] == ' ') {
5141 char *secs = emailend + 2;
5142 char *zone = strchr(secs, ' ');
5143 time_t time = (time_t) atol(secs);
5145 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5149 tz = ('0' - zone[1]) * 60 * 60 * 10;
5150 tz += ('0' - zone[2]) * 60 * 60;
5151 tz += ('0' - zone[3]) * 60;
5152 tz += ('0' - zone[4]) * 60;
5160 gmtime_r(&time, &commit->time);
5165 /* Fill in the commit title if it has not already been set. */
5166 if (commit->title[0])
5169 /* Require titles to start with a non-space character at the
5170 * offset used by git log. */
5171 if (strncmp(line, " ", 4))
5174 /* Well, if the title starts with a whitespace character,
5175 * try to be forgiving. Otherwise we end up with no title. */
5176 while (isspace(*line))
5180 /* FIXME: More graceful handling of titles; append "..." to
5181 * shortened titles, etc. */
5183 string_ncopy(commit->title, line, strlen(line));
5190 main_request(struct view *view, enum request request, struct line *line)
5192 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5196 open_view(view, REQ_VIEW_DIFF, flags);
5200 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5210 grep_refs(struct ref **refs, regex_t *regex)
5218 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5220 } while (refs[i++]->next);
5226 main_grep(struct view *view, struct line *line)
5228 struct commit *commit = line->data;
5229 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5230 char buf[DATE_COLS + 1];
5233 for (state = S_TITLE; state < S_END; state++) {
5237 case S_TITLE: text = commit->title; break;
5241 text = commit->author;
5246 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5253 if (grep_refs(commit->refs, view->regex) == TRUE)
5260 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5268 main_select(struct view *view, struct line *line)
5270 struct commit *commit = line->data;
5272 string_copy_rev(view->ref, commit->id);
5273 string_copy_rev(ref_commit, view->ref);
5276 static struct view_ops main_ops = {
5288 * Unicode / UTF-8 handling
5290 * NOTE: Much of the following code for dealing with unicode is derived from
5291 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5292 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5295 /* I've (over)annotated a lot of code snippets because I am not entirely
5296 * confident that the approach taken by this small UTF-8 interface is correct.
5300 unicode_width(unsigned long c)
5303 (c <= 0x115f /* Hangul Jamo */
5306 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5308 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5309 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5310 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5311 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5312 || (c >= 0xffe0 && c <= 0xffe6)
5313 || (c >= 0x20000 && c <= 0x2fffd)
5314 || (c >= 0x30000 && c <= 0x3fffd)))
5318 return opt_tab_size;
5323 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5324 * Illegal bytes are set one. */
5325 static const unsigned char utf8_bytes[256] = {
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 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,
5331 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,
5332 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,
5333 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,
5336 /* Decode UTF-8 multi-byte representation into a unicode character. */
5337 static inline unsigned long
5338 utf8_to_unicode(const char *string, size_t length)
5340 unsigned long unicode;
5344 unicode = string[0];
5347 unicode = (string[0] & 0x1f) << 6;
5348 unicode += (string[1] & 0x3f);
5351 unicode = (string[0] & 0x0f) << 12;
5352 unicode += ((string[1] & 0x3f) << 6);
5353 unicode += (string[2] & 0x3f);
5356 unicode = (string[0] & 0x0f) << 18;
5357 unicode += ((string[1] & 0x3f) << 12);
5358 unicode += ((string[2] & 0x3f) << 6);
5359 unicode += (string[3] & 0x3f);
5362 unicode = (string[0] & 0x0f) << 24;
5363 unicode += ((string[1] & 0x3f) << 18);
5364 unicode += ((string[2] & 0x3f) << 12);
5365 unicode += ((string[3] & 0x3f) << 6);
5366 unicode += (string[4] & 0x3f);
5369 unicode = (string[0] & 0x01) << 30;
5370 unicode += ((string[1] & 0x3f) << 24);
5371 unicode += ((string[2] & 0x3f) << 18);
5372 unicode += ((string[3] & 0x3f) << 12);
5373 unicode += ((string[4] & 0x3f) << 6);
5374 unicode += (string[5] & 0x3f);
5377 die("Invalid unicode length");
5380 /* Invalid characters could return the special 0xfffd value but NUL
5381 * should be just as good. */
5382 return unicode > 0xffff ? 0 : unicode;
5385 /* Calculates how much of string can be shown within the given maximum width
5386 * and sets trimmed parameter to non-zero value if all of string could not be
5387 * shown. If the reserve flag is TRUE, it will reserve at least one
5388 * trailing character, which can be useful when drawing a delimiter.
5390 * Returns the number of bytes to output from string to satisfy max_width. */
5392 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5394 const char *start = string;
5395 const char *end = strchr(string, '\0');
5396 unsigned char last_bytes = 0;
5397 size_t last_ucwidth = 0;
5402 while (string < end) {
5403 int c = *(unsigned char *) string;
5404 unsigned char bytes = utf8_bytes[c];
5406 unsigned long unicode;
5408 if (string + bytes > end)
5411 /* Change representation to figure out whether
5412 * it is a single- or double-width character. */
5414 unicode = utf8_to_unicode(string, bytes);
5415 /* FIXME: Graceful handling of invalid unicode character. */
5419 ucwidth = unicode_width(unicode);
5421 if (*width > max_width) {
5424 if (reserve && *width == max_width) {
5425 string -= last_bytes;
5426 *width -= last_ucwidth;
5433 last_ucwidth = ucwidth;
5436 return string - start;
5444 /* Whether or not the curses interface has been initialized. */
5445 static bool cursed = FALSE;
5447 /* The status window is used for polling keystrokes. */
5448 static WINDOW *status_win;
5450 static bool status_empty = TRUE;
5452 /* Update status and title window. */
5454 report(const char *msg, ...)
5456 struct view *view = display[current_view];
5462 char buf[SIZEOF_STR];
5465 va_start(args, msg);
5466 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5467 buf[sizeof(buf) - 1] = 0;
5468 buf[sizeof(buf) - 2] = '.';
5469 buf[sizeof(buf) - 3] = '.';
5470 buf[sizeof(buf) - 4] = '.';
5476 if (!status_empty || *msg) {
5479 va_start(args, msg);
5481 wmove(status_win, 0, 0);
5483 vwprintw(status_win, msg, args);
5484 status_empty = FALSE;
5486 status_empty = TRUE;
5488 wclrtoeol(status_win);
5489 wrefresh(status_win);
5494 update_view_title(view);
5495 update_display_cursor(view);
5498 /* Controls when nodelay should be in effect when polling user input. */
5500 set_nonblocking_input(bool loading)
5502 static unsigned int loading_views;
5504 if ((loading == FALSE && loading_views-- == 1) ||
5505 (loading == TRUE && loading_views++ == 0))
5506 nodelay(status_win, loading);
5514 /* Initialize the curses library */
5515 if (isatty(STDIN_FILENO)) {
5516 cursed = !!initscr();
5518 /* Leave stdin and stdout alone when acting as a pager. */
5519 FILE *io = fopen("/dev/tty", "r+");
5522 die("Failed to open /dev/tty");
5523 cursed = !!newterm(NULL, io, io);
5527 die("Failed to initialize curses");
5529 nonl(); /* Tell curses not to do NL->CR/NL on output */
5530 cbreak(); /* Take input chars one at a time, no wait for \n */
5531 noecho(); /* Don't echo input */
5532 leaveok(stdscr, TRUE);
5537 getmaxyx(stdscr, y, x);
5538 status_win = newwin(1, 0, y - 1, 0);
5540 die("Failed to create status window");
5542 /* Enable keyboard mapping */
5543 keypad(status_win, TRUE);
5544 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5546 TABSIZE = opt_tab_size;
5547 if (opt_line_graphics) {
5548 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5553 prompt_yesno(const char *prompt)
5555 enum { WAIT, STOP, CANCEL } status = WAIT;
5556 bool answer = FALSE;
5558 while (status == WAIT) {
5564 foreach_view (view, i)
5569 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
5570 wclrtoeol(status_win);
5572 /* Refresh, accept single keystroke of input */
5573 key = wgetch(status_win);
5597 /* Clear the status window */
5598 status_empty = FALSE;
5605 read_prompt(const char *prompt)
5607 enum { READING, STOP, CANCEL } status = READING;
5608 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
5611 while (status == READING) {
5617 foreach_view (view, i)
5622 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5623 wclrtoeol(status_win);
5625 /* Refresh, accept single keystroke of input */
5626 key = wgetch(status_win);
5631 status = pos ? STOP : CANCEL;
5649 if (pos >= sizeof(buf)) {
5650 report("Input string too long");
5655 buf[pos++] = (char) key;
5659 /* Clear the status window */
5660 status_empty = FALSE;
5663 if (status == CANCEL)
5672 * Repository references
5675 static struct ref *refs = NULL;
5676 static size_t refs_alloc = 0;
5677 static size_t refs_size = 0;
5679 /* Id <-> ref store */
5680 static struct ref ***id_refs = NULL;
5681 static size_t id_refs_alloc = 0;
5682 static size_t id_refs_size = 0;
5684 static struct ref **
5687 struct ref ***tmp_id_refs;
5688 struct ref **ref_list = NULL;
5689 size_t ref_list_alloc = 0;
5690 size_t ref_list_size = 0;
5693 for (i = 0; i < id_refs_size; i++)
5694 if (!strcmp(id, id_refs[i][0]->id))
5697 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
5702 id_refs = tmp_id_refs;
5704 for (i = 0; i < refs_size; i++) {
5707 if (strcmp(id, refs[i].id))
5710 tmp = realloc_items(ref_list, &ref_list_alloc,
5711 ref_list_size + 1, sizeof(*ref_list));
5719 if (ref_list_size > 0)
5720 ref_list[ref_list_size - 1]->next = 1;
5721 ref_list[ref_list_size] = &refs[i];
5723 /* XXX: The properties of the commit chains ensures that we can
5724 * safely modify the shared ref. The repo references will
5725 * always be similar for the same id. */
5726 ref_list[ref_list_size]->next = 0;
5731 id_refs[id_refs_size++] = ref_list;
5737 read_ref(char *id, size_t idlen, char *name, size_t namelen)
5742 bool remote = FALSE;
5743 bool tracked = FALSE;
5744 bool check_replace = FALSE;
5747 if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) {
5748 if (!strcmp(name + namelen - 3, "^{}")) {
5751 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
5752 check_replace = TRUE;
5758 namelen -= STRING_SIZE("refs/tags/");
5759 name += STRING_SIZE("refs/tags/");
5761 } else if (!strncmp(name, "refs/remotes/", STRING_SIZE("refs/remotes/"))) {
5763 namelen -= STRING_SIZE("refs/remotes/");
5764 name += STRING_SIZE("refs/remotes/");
5765 tracked = !strcmp(opt_remote, name);
5767 } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5768 namelen -= STRING_SIZE("refs/heads/");
5769 name += STRING_SIZE("refs/heads/");
5770 head = !strncmp(opt_head, name, namelen);
5772 } else if (!strcmp(name, "HEAD")) {
5773 opt_no_head = FALSE;
5777 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
5778 /* it's an annotated tag, replace the previous sha1 with the
5779 * resolved commit id; relies on the fact git-ls-remote lists
5780 * the commit id of an annotated tag right beofre the commit id
5782 refs[refs_size - 1].ltag = ltag;
5783 string_copy_rev(refs[refs_size - 1].id, id);
5787 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
5791 ref = &refs[refs_size++];
5792 ref->name = malloc(namelen + 1);
5796 strncpy(ref->name, name, namelen);
5797 ref->name[namelen] = 0;
5801 ref->remote = remote;
5802 ref->tracked = tracked;
5803 string_copy_rev(ref->id, id);
5811 const char *cmd_env = getenv("TIG_LS_REMOTE");
5812 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
5817 while (refs_size > 0)
5818 free(refs[--refs_size].name);
5819 while (id_refs_size > 0)
5820 free(id_refs[--id_refs_size]);
5822 return read_properties(popen(cmd, "r"), "\t", read_ref);
5826 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
5828 if (!strcmp(name, "i18n.commitencoding"))
5829 string_ncopy(opt_encoding, value, valuelen);
5831 if (!strcmp(name, "core.editor"))
5832 string_ncopy(opt_editor, value, valuelen);
5834 /* branch.<head>.remote */
5836 !strncmp(name, "branch.", 7) &&
5837 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5838 !strcmp(name + 7 + strlen(opt_head), ".remote"))
5839 string_ncopy(opt_remote, value, valuelen);
5841 if (*opt_head && *opt_remote &&
5842 !strncmp(name, "branch.", 7) &&
5843 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5844 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
5845 size_t from = strlen(opt_remote);
5847 if (!strncmp(value, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5848 value += STRING_SIZE("refs/heads/");
5849 valuelen -= STRING_SIZE("refs/heads/");
5852 if (!string_format_from(opt_remote, &from, "/%s", value))
5860 load_git_config(void)
5862 return read_properties(popen("git " GIT_CONFIG " --list", "r"),
5863 "=", read_repo_config_option);
5867 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
5869 if (!opt_git_dir[0]) {
5870 string_ncopy(opt_git_dir, name, namelen);
5872 } else if (opt_is_inside_work_tree == -1) {
5873 /* This can be 3 different values depending on the
5874 * version of git being used. If git-rev-parse does not
5875 * understand --is-inside-work-tree it will simply echo
5876 * the option else either "true" or "false" is printed.
5877 * Default to true for the unknown case. */
5878 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
5880 } else if (opt_cdup[0] == ' ') {
5881 string_ncopy(opt_cdup, name, namelen);
5883 if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5884 namelen -= STRING_SIZE("refs/heads/");
5885 name += STRING_SIZE("refs/heads/");
5886 string_ncopy(opt_head, name, namelen);
5894 load_repo_info(void)
5897 FILE *pipe = popen("(git rev-parse --git-dir --is-inside-work-tree "
5898 " --show-cdup; git symbolic-ref HEAD) 2>/dev/null", "r");
5900 /* XXX: The line outputted by "--show-cdup" can be empty so
5901 * initialize it to something invalid to make it possible to
5902 * detect whether it has been set or not. */
5905 result = read_properties(pipe, "=", read_repo_info);
5906 if (opt_cdup[0] == ' ')
5913 read_properties(FILE *pipe, const char *separators,
5914 int (*read_property)(char *, size_t, char *, size_t))
5916 char buffer[BUFSIZ];
5923 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
5928 name = chomp_string(name);
5929 namelen = strcspn(name, separators);
5931 if (name[namelen]) {
5933 value = chomp_string(name + namelen + 1);
5934 valuelen = strlen(value);
5941 state = read_property(name, namelen, value, valuelen);
5944 if (state != ERR && ferror(pipe))
5957 static void __NORETURN
5960 /* XXX: Restore tty modes and let the OS cleanup the rest! */
5966 static void __NORETURN
5967 die(const char *err, ...)
5973 va_start(args, err);
5974 fputs("tig: ", stderr);
5975 vfprintf(stderr, err, args);
5976 fputs("\n", stderr);
5983 warn(const char *msg, ...)
5987 va_start(args, msg);
5988 fputs("tig warning: ", stderr);
5989 vfprintf(stderr, msg, args);
5990 fputs("\n", stderr);
5995 main(int argc, char *argv[])
5998 enum request request;
6001 signal(SIGINT, quit);
6003 if (setlocale(LC_ALL, "")) {
6004 char *codeset = nl_langinfo(CODESET);
6006 string_ncopy(opt_codeset, codeset, strlen(codeset));
6009 if (load_repo_info() == ERR)
6010 die("Failed to load repo info.");
6012 if (load_options() == ERR)
6013 die("Failed to load user config.");
6015 if (load_git_config() == ERR)
6016 die("Failed to load repo config.");
6018 request = parse_options(argc, argv);
6019 if (request == REQ_NONE)
6022 /* Require a git repository unless when running in pager mode. */
6023 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6024 die("Not a git repository");
6026 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6029 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6030 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6031 if (opt_iconv == ICONV_NONE)
6032 die("Failed to initialize character set conversion");
6035 if (load_refs() == ERR)
6036 die("Failed to load refs.");
6038 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
6039 view->cmd_env = getenv(view->cmd_env);
6043 while (view_driver(display[current_view], request)) {
6047 foreach_view (view, i)
6050 /* Refresh, accept single keystroke of input */
6051 key = wgetch(status_win);
6053 /* wgetch() with nodelay() enabled returns ERR when there's no
6060 request = get_keybinding(display[current_view]->keymap, key);
6062 /* Some low-level request handling. This keeps access to
6063 * status_win restricted. */
6067 char *cmd = read_prompt(":");
6069 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
6070 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
6071 request = REQ_VIEW_DIFF;
6073 request = REQ_VIEW_PAGER;
6076 /* Always reload^Wrerun commands from the prompt. */
6077 open_view(view, request, OPEN_RELOAD);
6084 case REQ_SEARCH_BACK:
6086 const char *prompt = request == REQ_SEARCH
6088 char *search = read_prompt(prompt);
6091 string_ncopy(opt_search, search, strlen(search));
6096 case REQ_SCREEN_RESIZE:
6100 getmaxyx(stdscr, height, width);
6102 /* Resize the status view and let the view driver take
6103 * care of resizing the displayed views. */
6104 wresize(status_win, 1, width);
6105 mvwin(status_win, height - 1, 0);
6106 wrefresh(status_win);