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);
71 #define ABS(x) ((x) >= 0 ? (x) : -(x))
72 #define MIN(x, y) ((x) < (y) ? (x) : (y))
74 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
75 #define STRING_SIZE(x) (sizeof(x) - 1)
77 #define SIZEOF_STR 1024 /* Default string size. */
78 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
79 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL */
83 #define REVGRAPH_INIT 'I'
84 #define REVGRAPH_MERGE 'M'
85 #define REVGRAPH_BRANCH '+'
86 #define REVGRAPH_COMMIT '*'
87 #define REVGRAPH_BOUND '^'
89 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
91 /* This color name can be used to refer to the default term colors. */
92 #define COLOR_DEFAULT (-1)
94 #define ICONV_NONE ((iconv_t) -1)
96 #define ICONV_CONST /* nothing */
99 /* The format and size of the date column in the main view. */
100 #define DATE_FORMAT "%Y-%m-%d %H:%M"
101 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
103 #define AUTHOR_COLS 20
106 /* The default interval between line numbers. */
107 #define NUMBER_INTERVAL 5
111 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
113 #define NULL_ID "0000000000000000000000000000000000000000"
116 #define GIT_CONFIG "git config"
119 #define TIG_LS_REMOTE \
120 "git ls-remote . 2>/dev/null"
122 #define TIG_DIFF_CMD \
123 "git show --pretty=fuller --no-color --root --patch-with-stat --find-copies-harder -C %s 2>/dev/null"
125 #define TIG_LOG_CMD \
126 "git log --no-color --cc --stat -n100 %s 2>/dev/null"
128 #define TIG_MAIN_CMD \
129 "git log --no-color --topo-order --parents --boundary --pretty=raw %s 2>/dev/null"
131 #define TIG_TREE_CMD \
134 #define TIG_BLOB_CMD \
135 "git cat-file blob %s"
137 /* XXX: Needs to be defined to the empty string. */
138 #define TIG_HELP_CMD ""
139 #define TIG_PAGER_CMD ""
140 #define TIG_STATUS_CMD ""
141 #define TIG_STAGE_CMD ""
142 #define TIG_BLAME_CMD ""
144 /* Some ascii-shorthands fitted into the ncurses namespace. */
146 #define KEY_RETURN '\r'
151 char *name; /* Ref name; tag or head names are shortened. */
152 char id[SIZEOF_REV]; /* Commit SHA1 ID */
153 unsigned int head:1; /* Is it the current HEAD? */
154 unsigned int tag:1; /* Is it a tag? */
155 unsigned int ltag:1; /* If so, is the tag local? */
156 unsigned int remote:1; /* Is it a remote ref? */
157 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
158 unsigned int next:1; /* For ref lists: are there more refs? */
161 static struct ref **get_refs(char *id);
170 set_from_int_map(struct int_map *map, size_t map_size,
171 int *value, const char *name, int namelen)
176 for (i = 0; i < map_size; i++)
177 if (namelen == map[i].namelen &&
178 !strncasecmp(name, map[i].name, namelen)) {
179 *value = map[i].value;
192 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
194 if (srclen > dstlen - 1)
197 strncpy(dst, src, srclen);
201 /* Shorthands for safely copying into a fixed buffer. */
203 #define string_copy(dst, src) \
204 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
206 #define string_ncopy(dst, src, srclen) \
207 string_ncopy_do(dst, sizeof(dst), src, srclen)
209 #define string_copy_rev(dst, src) \
210 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
212 #define string_add(dst, from, src) \
213 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
216 chomp_string(char *name)
220 while (isspace(*name))
223 namelen = strlen(name) - 1;
224 while (namelen > 0 && isspace(name[namelen]))
231 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
234 size_t pos = bufpos ? *bufpos : 0;
237 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
243 return pos >= bufsize ? FALSE : TRUE;
246 #define string_format(buf, fmt, args...) \
247 string_nformat(buf, sizeof(buf), NULL, fmt, args)
249 #define string_format_from(buf, from, fmt, args...) \
250 string_nformat(buf, sizeof(buf), from, fmt, args)
253 string_enum_compare(const char *str1, const char *str2, int len)
257 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
259 /* Diff-Header == DIFF_HEADER */
260 for (i = 0; i < len; i++) {
261 if (toupper(str1[i]) == toupper(str2[i]))
264 if (string_enum_sep(str1[i]) &&
265 string_enum_sep(str2[i]))
268 return str1[i] - str2[i];
276 * NOTE: The following is a slightly modified copy of the git project's shell
277 * quoting routines found in the quote.c file.
279 * Help to copy the thing properly quoted for the shell safety. any single
280 * quote is replaced with '\'', any exclamation point is replaced with '\!',
281 * and the whole thing is enclosed in a
284 * original sq_quote result
285 * name ==> name ==> 'name'
286 * a b ==> a b ==> 'a b'
287 * a'b ==> a'\''b ==> 'a'\''b'
288 * a!b ==> a'\!'b ==> 'a'\!'b'
292 sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src)
296 #define BUFPUT(x) do { if (bufsize < SIZEOF_STR) buf[bufsize++] = (x); } while (0)
299 while ((c = *src++)) {
300 if (c == '\'' || c == '!') {
311 if (bufsize < SIZEOF_STR)
323 /* XXX: Keep the view request first and in sync with views[]. */ \
324 REQ_GROUP("View switching") \
325 REQ_(VIEW_MAIN, "Show main view"), \
326 REQ_(VIEW_DIFF, "Show diff view"), \
327 REQ_(VIEW_LOG, "Show log view"), \
328 REQ_(VIEW_TREE, "Show tree view"), \
329 REQ_(VIEW_BLOB, "Show blob view"), \
330 REQ_(VIEW_BLAME, "Show blame view"), \
331 REQ_(VIEW_HELP, "Show help page"), \
332 REQ_(VIEW_PAGER, "Show pager view"), \
333 REQ_(VIEW_STATUS, "Show status view"), \
334 REQ_(VIEW_STAGE, "Show stage view"), \
336 REQ_GROUP("View manipulation") \
337 REQ_(ENTER, "Enter current line and scroll"), \
338 REQ_(NEXT, "Move to next"), \
339 REQ_(PREVIOUS, "Move to previous"), \
340 REQ_(VIEW_NEXT, "Move focus to next view"), \
341 REQ_(REFRESH, "Reload and refresh"), \
342 REQ_(MAXIMIZE, "Maximize the current view"), \
343 REQ_(VIEW_CLOSE, "Close the current view"), \
344 REQ_(QUIT, "Close all views and quit"), \
346 REQ_GROUP("Cursor navigation") \
347 REQ_(MOVE_UP, "Move cursor one line up"), \
348 REQ_(MOVE_DOWN, "Move cursor one line down"), \
349 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
350 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
351 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
352 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
354 REQ_GROUP("Scrolling") \
355 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
356 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
357 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
358 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
360 REQ_GROUP("Searching") \
361 REQ_(SEARCH, "Search the view"), \
362 REQ_(SEARCH_BACK, "Search backwards in the view"), \
363 REQ_(FIND_NEXT, "Find next search match"), \
364 REQ_(FIND_PREV, "Find previous search match"), \
367 REQ_(PROMPT, "Bring up the prompt"), \
368 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
369 REQ_(SCREEN_RESIZE, "Resize the screen"), \
370 REQ_(SHOW_VERSION, "Show version information"), \
371 REQ_(STOP_LOADING, "Stop all loading views"), \
372 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
373 REQ_(TOGGLE_DATE, "Toggle date display"), \
374 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
375 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
376 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
377 REQ_(STATUS_UPDATE, "Update file status"), \
378 REQ_(STATUS_MERGE, "Merge file using external tool"), \
379 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
380 REQ_(TREE_PARENT, "Switch to parent directory in tree view"), \
381 REQ_(EDIT, "Open in editor"), \
382 REQ_(NONE, "Do nothing")
385 /* User action requests. */
387 #define REQ_GROUP(help)
388 #define REQ_(req, help) REQ_##req
390 /* Offset all requests to avoid conflicts with ncurses getch values. */
391 REQ_OFFSET = KEY_MAX + 1,
398 struct request_info {
399 enum request request;
405 static struct request_info req_info[] = {
406 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
407 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
414 get_request(const char *name)
416 int namelen = strlen(name);
419 for (i = 0; i < ARRAY_SIZE(req_info); i++)
420 if (req_info[i].namelen == namelen &&
421 !string_enum_compare(req_info[i].name, name, namelen))
422 return req_info[i].request;
432 static const char usage[] =
433 "tig " TIG_VERSION " (" __DATE__ ")\n"
435 "Usage: tig [options] [revs] [--] [paths]\n"
436 " or: tig show [options] [revs] [--] [paths]\n"
437 " or: tig blame [rev] path\n"
439 " or: tig < [git command output]\n"
442 " -v, --version Show version and exit\n"
443 " -h, --help Show help message and exit";
445 /* Option and state variables. */
446 static bool opt_date = TRUE;
447 static bool opt_author = TRUE;
448 static bool opt_line_number = FALSE;
449 static bool opt_line_graphics = TRUE;
450 static bool opt_rev_graph = FALSE;
451 static bool opt_show_refs = TRUE;
452 static int opt_num_interval = NUMBER_INTERVAL;
453 static int opt_tab_size = TAB_SIZE;
454 static int opt_author_cols = AUTHOR_COLS-1;
455 static enum request opt_request = REQ_VIEW_MAIN;
456 static char opt_cmd[SIZEOF_STR] = "";
457 static char opt_path[SIZEOF_STR] = "";
458 static char opt_file[SIZEOF_STR] = "";
459 static char opt_ref[SIZEOF_REF] = "";
460 static char opt_head[SIZEOF_REF] = "";
461 static char opt_remote[SIZEOF_REF] = "";
462 static bool opt_no_head = TRUE;
463 static FILE *opt_pipe = NULL;
464 static char opt_encoding[20] = "UTF-8";
465 static bool opt_utf8 = TRUE;
466 static char opt_codeset[20] = "UTF-8";
467 static iconv_t opt_iconv = ICONV_NONE;
468 static char opt_search[SIZEOF_STR] = "";
469 static char opt_cdup[SIZEOF_STR] = "";
470 static char opt_git_dir[SIZEOF_STR] = "";
471 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
472 static char opt_editor[SIZEOF_STR] = "";
475 parse_options(int argc, char *argv[])
479 bool seen_dashdash = FALSE;
482 if (!isatty(STDIN_FILENO)) {
483 opt_request = REQ_VIEW_PAGER;
491 subcommand = argv[1];
492 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
493 opt_request = REQ_VIEW_STATUS;
494 if (!strcmp(subcommand, "-S"))
495 warn("`-S' has been deprecated; use `tig status' instead");
497 warn("ignoring arguments after `%s'", subcommand);
500 } else if (!strcmp(subcommand, "blame")) {
501 opt_request = REQ_VIEW_BLAME;
502 if (argc <= 2 || argc > 4)
503 die("invalid number of options to blame\n\n%s", usage);
507 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
511 string_ncopy(opt_file, argv[i], strlen(argv[i]));
514 } else if (!strcmp(subcommand, "show")) {
515 opt_request = REQ_VIEW_DIFF;
517 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
518 opt_request = subcommand[0] == 'l'
519 ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
520 warn("`tig %s' has been deprecated", subcommand);
527 /* XXX: This is vulnerable to the user overriding
528 * options required for the main view parser. */
529 string_copy(opt_cmd, "git log --no-color --pretty=raw --boundary --parents");
531 string_format(opt_cmd, "git %s", subcommand);
533 buf_size = strlen(opt_cmd);
535 for (i = 1 + !!subcommand; i < argc; i++) {
538 if (seen_dashdash || !strcmp(opt, "--")) {
539 seen_dashdash = TRUE;
541 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
542 printf("tig version %s\n", TIG_VERSION);
545 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
546 printf("%s\n", usage);
550 opt_cmd[buf_size++] = ' ';
551 buf_size = sq_quote(opt_cmd, buf_size, opt);
552 if (buf_size >= sizeof(opt_cmd))
553 die("command too long");
556 opt_cmd[buf_size] = 0;
563 * Line-oriented content detection.
567 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
568 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
569 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
570 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
571 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
572 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
573 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
574 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
575 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
576 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
577 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
578 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
579 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
580 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
581 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
582 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
583 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
584 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
585 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
586 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
587 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
588 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
589 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
590 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
591 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
592 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
593 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
594 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
595 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
596 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
597 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
598 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
599 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
600 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
601 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
602 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
603 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
604 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
605 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
606 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
607 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
608 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
609 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
610 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
611 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
612 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
613 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
614 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
615 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
616 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
617 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
618 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
619 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
620 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
623 #define LINE(type, line, fg, bg, attr) \
631 const char *name; /* Option name. */
632 int namelen; /* Size of option name. */
633 const char *line; /* The start of line to match. */
634 int linelen; /* Size of string to match. */
635 int fg, bg, attr; /* Color and text attributes for the lines. */
638 static struct line_info line_info[] = {
639 #define LINE(type, line, fg, bg, attr) \
640 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
645 static enum line_type
646 get_line_type(char *line)
648 int linelen = strlen(line);
651 for (type = 0; type < ARRAY_SIZE(line_info); type++)
652 /* Case insensitive search matches Signed-off-by lines better. */
653 if (linelen >= line_info[type].linelen &&
654 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
661 get_line_attr(enum line_type type)
663 assert(type < ARRAY_SIZE(line_info));
664 return COLOR_PAIR(type) | line_info[type].attr;
667 static struct line_info *
668 get_line_info(char *name)
670 size_t namelen = strlen(name);
673 for (type = 0; type < ARRAY_SIZE(line_info); type++)
674 if (namelen == line_info[type].namelen &&
675 !string_enum_compare(line_info[type].name, name, namelen))
676 return &line_info[type];
684 int default_bg = line_info[LINE_DEFAULT].bg;
685 int default_fg = line_info[LINE_DEFAULT].fg;
690 if (assume_default_colors(default_fg, default_bg) == ERR) {
691 default_bg = COLOR_BLACK;
692 default_fg = COLOR_WHITE;
695 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
696 struct line_info *info = &line_info[type];
697 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
698 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
700 init_pair(type, fg, bg);
708 unsigned int selected:1;
709 unsigned int dirty:1;
711 void *data; /* User data */
721 enum request request;
722 struct keybinding *next;
725 static struct keybinding default_keybindings[] = {
727 { 'm', REQ_VIEW_MAIN },
728 { 'd', REQ_VIEW_DIFF },
729 { 'l', REQ_VIEW_LOG },
730 { 't', REQ_VIEW_TREE },
731 { 'f', REQ_VIEW_BLOB },
732 { 'B', REQ_VIEW_BLAME },
733 { 'p', REQ_VIEW_PAGER },
734 { 'h', REQ_VIEW_HELP },
735 { 'S', REQ_VIEW_STATUS },
736 { 'c', REQ_VIEW_STAGE },
738 /* View manipulation */
739 { 'q', REQ_VIEW_CLOSE },
740 { KEY_TAB, REQ_VIEW_NEXT },
741 { KEY_RETURN, REQ_ENTER },
742 { KEY_UP, REQ_PREVIOUS },
743 { KEY_DOWN, REQ_NEXT },
744 { 'R', REQ_REFRESH },
745 { KEY_F(5), REQ_REFRESH },
746 { 'O', REQ_MAXIMIZE },
748 /* Cursor navigation */
749 { 'k', REQ_MOVE_UP },
750 { 'j', REQ_MOVE_DOWN },
751 { KEY_HOME, REQ_MOVE_FIRST_LINE },
752 { KEY_END, REQ_MOVE_LAST_LINE },
753 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
754 { ' ', REQ_MOVE_PAGE_DOWN },
755 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
756 { 'b', REQ_MOVE_PAGE_UP },
757 { '-', REQ_MOVE_PAGE_UP },
760 { KEY_IC, REQ_SCROLL_LINE_UP },
761 { KEY_DC, REQ_SCROLL_LINE_DOWN },
762 { 'w', REQ_SCROLL_PAGE_UP },
763 { 's', REQ_SCROLL_PAGE_DOWN },
767 { '?', REQ_SEARCH_BACK },
768 { 'n', REQ_FIND_NEXT },
769 { 'N', REQ_FIND_PREV },
773 { 'z', REQ_STOP_LOADING },
774 { 'v', REQ_SHOW_VERSION },
775 { 'r', REQ_SCREEN_REDRAW },
776 { '.', REQ_TOGGLE_LINENO },
777 { 'D', REQ_TOGGLE_DATE },
778 { 'A', REQ_TOGGLE_AUTHOR },
779 { 'g', REQ_TOGGLE_REV_GRAPH },
780 { 'F', REQ_TOGGLE_REFS },
782 { 'u', REQ_STATUS_UPDATE },
783 { 'M', REQ_STATUS_MERGE },
784 { '@', REQ_STAGE_NEXT },
785 { ',', REQ_TREE_PARENT },
788 /* Using the ncurses SIGWINCH handler. */
789 { KEY_RESIZE, REQ_SCREEN_RESIZE },
792 #define KEYMAP_INFO \
806 #define KEYMAP_(name) KEYMAP_##name
811 static struct int_map keymap_table[] = {
812 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
817 #define set_keymap(map, name) \
818 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
820 static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)];
823 add_keybinding(enum keymap keymap, enum request request, int key)
825 struct keybinding *keybinding;
827 keybinding = calloc(1, sizeof(*keybinding));
829 die("Failed to allocate keybinding");
831 keybinding->alias = key;
832 keybinding->request = request;
833 keybinding->next = keybindings[keymap];
834 keybindings[keymap] = keybinding;
837 /* Looks for a key binding first in the given map, then in the generic map, and
838 * lastly in the default keybindings. */
840 get_keybinding(enum keymap keymap, int key)
842 struct keybinding *kbd;
845 for (kbd = keybindings[keymap]; kbd; kbd = kbd->next)
846 if (kbd->alias == key)
849 for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next)
850 if (kbd->alias == key)
853 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
854 if (default_keybindings[i].alias == key)
855 return default_keybindings[i].request;
857 return (enum request) key;
866 static struct key key_table[] = {
867 { "Enter", KEY_RETURN },
869 { "Backspace", KEY_BACKSPACE },
871 { "Escape", KEY_ESC },
872 { "Left", KEY_LEFT },
873 { "Right", KEY_RIGHT },
875 { "Down", KEY_DOWN },
876 { "Insert", KEY_IC },
877 { "Delete", KEY_DC },
879 { "Home", KEY_HOME },
881 { "PageUp", KEY_PPAGE },
882 { "PageDown", KEY_NPAGE },
892 { "F10", KEY_F(10) },
893 { "F11", KEY_F(11) },
894 { "F12", KEY_F(12) },
898 get_key_value(const char *name)
902 for (i = 0; i < ARRAY_SIZE(key_table); i++)
903 if (!strcasecmp(key_table[i].name, name))
904 return key_table[i].value;
906 if (strlen(name) == 1 && isprint(*name))
913 get_key_name(int key_value)
915 static char key_char[] = "'X'";
919 for (key = 0; key < ARRAY_SIZE(key_table); key++)
920 if (key_table[key].value == key_value)
921 seq = key_table[key].name;
925 isprint(key_value)) {
926 key_char[1] = (char) key_value;
930 return seq ? seq : "'?'";
934 get_key(enum request request)
936 static char buf[BUFSIZ];
943 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
944 struct keybinding *keybinding = &default_keybindings[i];
946 if (keybinding->request != request)
949 if (!string_format_from(buf, &pos, "%s%s", sep,
950 get_key_name(keybinding->alias)))
951 return "Too many keybindings!";
961 char cmd[SIZEOF_STR];
964 static struct run_request *run_request;
965 static size_t run_requests;
968 add_run_request(enum keymap keymap, int key, int argc, char **argv)
970 struct run_request *req;
971 char cmd[SIZEOF_STR];
974 for (bufpos = 0; argc > 0; argc--, argv++)
975 if (!string_format_from(cmd, &bufpos, "%s ", *argv))
978 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
983 req = &run_request[run_requests++];
984 string_copy(req->cmd, cmd);
985 req->keymap = keymap;
988 return REQ_NONE + run_requests;
991 static struct run_request *
992 get_run_request(enum request request)
994 if (request <= REQ_NONE)
996 return &run_request[request - REQ_NONE - 1];
1000 add_builtin_run_requests(void)
1007 { KEYMAP_MAIN, 'C', { "git cherry-pick %(commit)" } },
1008 { KEYMAP_GENERIC, 'G', { "git gc" } },
1012 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1015 req = add_run_request(reqs[i].keymap, reqs[i].key, 1, reqs[i].argv);
1016 if (req != REQ_NONE)
1017 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1022 * User config file handling.
1025 static struct int_map color_map[] = {
1026 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1038 #define set_color(color, name) \
1039 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1041 static struct int_map attr_map[] = {
1042 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1049 ATTR_MAP(UNDERLINE),
1052 #define set_attribute(attr, name) \
1053 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1055 static int config_lineno;
1056 static bool config_errors;
1057 static char *config_msg;
1059 /* Wants: object fgcolor bgcolor [attr] */
1061 option_color_command(int argc, char *argv[])
1063 struct line_info *info;
1065 if (argc != 3 && argc != 4) {
1066 config_msg = "Wrong number of arguments given to color command";
1070 info = get_line_info(argv[0]);
1072 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1073 info = get_line_info("delimiter");
1075 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1076 info = get_line_info("date");
1079 config_msg = "Unknown color name";
1084 if (set_color(&info->fg, argv[1]) == ERR ||
1085 set_color(&info->bg, argv[2]) == ERR) {
1086 config_msg = "Unknown color";
1090 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1091 config_msg = "Unknown attribute";
1098 static bool parse_bool(const char *s)
1100 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1101 !strcmp(s, "yes")) ? TRUE : FALSE;
1104 /* Wants: name = value */
1106 option_set_command(int argc, char *argv[])
1109 config_msg = "Wrong number of arguments given to set command";
1113 if (strcmp(argv[1], "=")) {
1114 config_msg = "No value assigned";
1118 if (!strcmp(argv[0], "show-author")) {
1119 opt_author = parse_bool(argv[2]);
1123 if (!strcmp(argv[0], "show-date")) {
1124 opt_date = parse_bool(argv[2]);
1128 if (!strcmp(argv[0], "show-rev-graph")) {
1129 opt_rev_graph = parse_bool(argv[2]);
1133 if (!strcmp(argv[0], "show-refs")) {
1134 opt_show_refs = parse_bool(argv[2]);
1138 if (!strcmp(argv[0], "show-line-numbers")) {
1139 opt_line_number = parse_bool(argv[2]);
1143 if (!strcmp(argv[0], "line-graphics")) {
1144 opt_line_graphics = parse_bool(argv[2]);
1148 if (!strcmp(argv[0], "line-number-interval")) {
1149 opt_num_interval = atoi(argv[2]);
1153 if (!strcmp(argv[0], "author-width")) {
1154 opt_author_cols = atoi(argv[2]);
1158 if (!strcmp(argv[0], "tab-size")) {
1159 opt_tab_size = atoi(argv[2]);
1163 if (!strcmp(argv[0], "commit-encoding")) {
1164 char *arg = argv[2];
1165 int delimiter = *arg;
1168 switch (delimiter) {
1171 for (arg++, i = 0; arg[i]; i++)
1172 if (arg[i] == delimiter) {
1177 string_ncopy(opt_encoding, arg, strlen(arg));
1182 config_msg = "Unknown variable name";
1186 /* Wants: mode request key */
1188 option_bind_command(int argc, char *argv[])
1190 enum request request;
1195 config_msg = "Wrong number of arguments given to bind command";
1199 if (set_keymap(&keymap, argv[0]) == ERR) {
1200 config_msg = "Unknown key map";
1204 key = get_key_value(argv[1]);
1206 config_msg = "Unknown key";
1210 request = get_request(argv[2]);
1211 if (request == REQ_NONE) {
1212 const char *obsolete[] = { "cherry-pick" };
1213 size_t namelen = strlen(argv[2]);
1216 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1217 if (namelen == strlen(obsolete[i]) &&
1218 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1219 config_msg = "Obsolete request name";
1224 if (request == REQ_NONE && *argv[2]++ == '!')
1225 request = add_run_request(keymap, key, argc - 2, argv + 2);
1226 if (request == REQ_NONE) {
1227 config_msg = "Unknown request name";
1231 add_keybinding(keymap, request, key);
1237 set_option(char *opt, char *value)
1244 while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) {
1245 argv[argc++] = value;
1248 /* Nothing more to tokenize or last available token. */
1249 if (!*value || argc >= ARRAY_SIZE(argv))
1253 while (isspace(*value))
1257 if (!strcmp(opt, "color"))
1258 return option_color_command(argc, argv);
1260 if (!strcmp(opt, "set"))
1261 return option_set_command(argc, argv);
1263 if (!strcmp(opt, "bind"))
1264 return option_bind_command(argc, argv);
1266 config_msg = "Unknown option command";
1271 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1276 config_msg = "Internal error";
1278 /* Check for comment markers, since read_properties() will
1279 * only ensure opt and value are split at first " \t". */
1280 optlen = strcspn(opt, "#");
1284 if (opt[optlen] != 0) {
1285 config_msg = "No option value";
1289 /* Look for comment endings in the value. */
1290 size_t len = strcspn(value, "#");
1292 if (len < valuelen) {
1294 value[valuelen] = 0;
1297 status = set_option(opt, value);
1300 if (status == ERR) {
1301 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1302 config_lineno, (int) optlen, opt, config_msg);
1303 config_errors = TRUE;
1306 /* Always keep going if errors are encountered. */
1311 load_option_file(const char *path)
1315 /* It's ok that the file doesn't exist. */
1316 file = fopen(path, "r");
1321 config_errors = FALSE;
1323 if (read_properties(file, " \t", read_option) == ERR ||
1324 config_errors == TRUE)
1325 fprintf(stderr, "Errors while loading %s.\n", path);
1331 char *home = getenv("HOME");
1332 char *tigrc_user = getenv("TIGRC_USER");
1333 char *tigrc_system = getenv("TIGRC_SYSTEM");
1334 char buf[SIZEOF_STR];
1336 add_builtin_run_requests();
1338 if (!tigrc_system) {
1339 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1343 load_option_file(tigrc_system);
1346 if (!home || !string_format(buf, "%s/.tigrc", home))
1350 load_option_file(tigrc_user);
1363 /* The display array of active views and the index of the current view. */
1364 static struct view *display[2];
1365 static unsigned int current_view;
1367 /* Reading from the prompt? */
1368 static bool input_mode = FALSE;
1370 #define foreach_displayed_view(view, i) \
1371 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1373 #define displayed_views() (display[1] != NULL ? 2 : 1)
1375 /* Current head and commit ID */
1376 static char ref_blob[SIZEOF_REF] = "";
1377 static char ref_commit[SIZEOF_REF] = "HEAD";
1378 static char ref_head[SIZEOF_REF] = "HEAD";
1381 const char *name; /* View name */
1382 const char *cmd_fmt; /* Default command line format */
1383 const char *cmd_env; /* Command line set via environment */
1384 const char *id; /* Points to either of ref_{head,commit,blob} */
1386 struct view_ops *ops; /* View operations */
1388 enum keymap keymap; /* What keymap does this view have */
1389 bool git_dir; /* Whether the view requires a git directory. */
1391 char cmd[SIZEOF_STR]; /* Command buffer */
1392 char ref[SIZEOF_REF]; /* Hovered commit reference */
1393 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1395 int height, width; /* The width and height of the main window */
1396 WINDOW *win; /* The main window */
1397 WINDOW *title; /* The title window living below the main window */
1400 unsigned long offset; /* Offset of the window top */
1401 unsigned long lineno; /* Current line number */
1404 char grep[SIZEOF_STR]; /* Search string */
1405 regex_t *regex; /* Pre-compiled regex */
1407 /* If non-NULL, points to the view that opened this view. If this view
1408 * is closed tig will switch back to the parent view. */
1409 struct view *parent;
1412 size_t lines; /* Total number of lines */
1413 struct line *line; /* Line index */
1414 size_t line_alloc; /* Total number of allocated lines */
1415 size_t line_size; /* Total number of used lines */
1416 unsigned int digits; /* Number of digits in the lines member. */
1419 struct line *curline; /* Line currently being drawn. */
1420 enum line_type curtype; /* Attribute currently used for drawing. */
1421 unsigned long col; /* Column when drawing. */
1429 /* What type of content being displayed. Used in the title bar. */
1431 /* Open and reads in all view content. */
1432 bool (*open)(struct view *view);
1433 /* Read one line; updates view->line. */
1434 bool (*read)(struct view *view, char *data);
1435 /* Draw one line; @lineno must be < view->height. */
1436 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1437 /* Depending on view handle a special requests. */
1438 enum request (*request)(struct view *view, enum request request, struct line *line);
1439 /* Search for regex in a line. */
1440 bool (*grep)(struct view *view, struct line *line);
1442 void (*select)(struct view *view, struct line *line);
1445 static struct view_ops pager_ops;
1446 static struct view_ops main_ops;
1447 static struct view_ops tree_ops;
1448 static struct view_ops blob_ops;
1449 static struct view_ops blame_ops;
1450 static struct view_ops help_ops;
1451 static struct view_ops status_ops;
1452 static struct view_ops stage_ops;
1454 #define VIEW_STR(name, cmd, env, ref, ops, map, git) \
1455 { name, cmd, #env, ref, ops, map, git }
1457 #define VIEW_(id, name, ops, git, ref) \
1458 VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1461 static struct view views[] = {
1462 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1463 VIEW_(DIFF, "diff", &pager_ops, TRUE, ref_commit),
1464 VIEW_(LOG, "log", &pager_ops, TRUE, ref_head),
1465 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1466 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1467 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1468 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1469 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1470 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1471 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1474 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1475 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1477 #define foreach_view(view, i) \
1478 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1480 #define view_is_displayed(view) \
1481 (view == display[0] || view == display[1])
1488 static int line_graphics[] = {
1489 /* LINE_GRAPHIC_VLINE: */ '|'
1493 set_view_attr(struct view *view, enum line_type type)
1495 if (!view->curline->selected && view->curtype != type) {
1496 wattrset(view->win, get_line_attr(type));
1497 wchgat(view->win, -1, 0, type, NULL);
1498 view->curtype = type;
1503 draw_chars(struct view *view, enum line_type type, const char *string,
1504 int max_len, bool use_tilde)
1508 int trimmed = FALSE;
1514 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1516 col = len = strlen(string);
1517 if (len > max_len) {
1521 col = len = max_len;
1526 set_view_attr(view, type);
1527 waddnstr(view->win, string, len);
1528 if (trimmed && use_tilde) {
1529 set_view_attr(view, LINE_DELIMITER);
1530 waddch(view->win, '~');
1538 draw_space(struct view *view, enum line_type type, int max, int spaces)
1540 static char space[] = " ";
1543 spaces = MIN(max, spaces);
1545 while (spaces > 0) {
1546 int len = MIN(spaces, sizeof(space) - 1);
1548 col += draw_chars(view, type, space, spaces, FALSE);
1556 draw_lineno(struct view *view, unsigned int lineno)
1559 int digits3 = view->digits < 3 ? 3 : view->digits;
1560 int max_number = MIN(digits3, STRING_SIZE(number));
1561 int max = view->width - view->col;
1564 if (max < max_number)
1567 lineno += view->offset + 1;
1568 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1569 static char fmt[] = "%1ld";
1571 if (view->digits <= 9)
1572 fmt[1] = '0' + digits3;
1574 if (!string_format(number, fmt, lineno))
1576 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1578 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1582 set_view_attr(view, LINE_DEFAULT);
1583 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1588 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1591 return view->width - view->col <= 0;
1595 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1597 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1598 return view->width - view->col <= 0;
1602 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1604 int max = view->width - view->col;
1610 set_view_attr(view, type);
1611 /* Using waddch() instead of waddnstr() ensures that
1612 * they'll be rendered correctly for the cursor line. */
1613 for (i = 0; i < size; i++)
1614 waddch(view->win, graphic[i]);
1618 waddch(view->win, ' ');
1622 return view->width - view->col <= 0;
1626 draw_field(struct view *view, enum line_type type, char *text, int len, bool trim)
1628 int max = MIN(view->width - view->col, len);
1632 col = draw_chars(view, type, text, max - 1, trim);
1634 col = draw_space(view, type, max - 1, max - 1);
1636 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1637 return view->width - view->col <= 0;
1641 draw_date(struct view *view, struct tm *time)
1643 char buf[DATE_COLS];
1648 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1649 date = timelen ? buf : NULL;
1651 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1655 draw_view_line(struct view *view, unsigned int lineno)
1658 bool selected = (view->offset + lineno == view->lineno);
1661 assert(view_is_displayed(view));
1663 if (view->offset + lineno >= view->lines)
1666 line = &view->line[view->offset + lineno];
1668 wmove(view->win, lineno, 0);
1670 view->curline = line;
1671 view->curtype = LINE_NONE;
1672 line->selected = FALSE;
1675 set_view_attr(view, LINE_CURSOR);
1676 line->selected = TRUE;
1677 view->ops->select(view, line);
1678 } else if (line->selected) {
1679 wclrtoeol(view->win);
1682 scrollok(view->win, FALSE);
1683 draw_ok = view->ops->draw(view, line, lineno);
1684 scrollok(view->win, TRUE);
1690 redraw_view_dirty(struct view *view)
1695 for (lineno = 0; lineno < view->height; lineno++) {
1696 struct line *line = &view->line[view->offset + lineno];
1702 if (!draw_view_line(view, lineno))
1708 redrawwin(view->win);
1710 wnoutrefresh(view->win);
1712 wrefresh(view->win);
1716 redraw_view_from(struct view *view, int lineno)
1718 assert(0 <= lineno && lineno < view->height);
1720 for (; lineno < view->height; lineno++) {
1721 if (!draw_view_line(view, lineno))
1725 redrawwin(view->win);
1727 wnoutrefresh(view->win);
1729 wrefresh(view->win);
1733 redraw_view(struct view *view)
1736 redraw_view_from(view, 0);
1741 update_view_title(struct view *view)
1743 char buf[SIZEOF_STR];
1744 char state[SIZEOF_STR];
1745 size_t bufpos = 0, statelen = 0;
1747 assert(view_is_displayed(view));
1749 if (view != VIEW(REQ_VIEW_STATUS) && (view->lines || view->pipe)) {
1750 unsigned int view_lines = view->offset + view->height;
1751 unsigned int lines = view->lines
1752 ? MIN(view_lines, view->lines) * 100 / view->lines
1755 string_format_from(state, &statelen, "- %s %d of %d (%d%%)",
1762 time_t secs = time(NULL) - view->start_time;
1764 /* Three git seconds are a long time ... */
1766 string_format_from(state, &statelen, " %lds", secs);
1770 string_format_from(buf, &bufpos, "[%s]", view->name);
1771 if (*view->ref && bufpos < view->width) {
1772 size_t refsize = strlen(view->ref);
1773 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
1775 if (minsize < view->width)
1776 refsize = view->width - minsize + 7;
1777 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
1780 if (statelen && bufpos < view->width) {
1781 string_format_from(buf, &bufpos, " %s", state);
1784 if (view == display[current_view])
1785 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
1787 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
1789 mvwaddnstr(view->title, 0, 0, buf, bufpos);
1790 wclrtoeol(view->title);
1791 wmove(view->title, 0, view->width - 1);
1794 wnoutrefresh(view->title);
1796 wrefresh(view->title);
1800 resize_display(void)
1803 struct view *base = display[0];
1804 struct view *view = display[1] ? display[1] : display[0];
1806 /* Setup window dimensions */
1808 getmaxyx(stdscr, base->height, base->width);
1810 /* Make room for the status window. */
1814 /* Horizontal split. */
1815 view->width = base->width;
1816 view->height = SCALE_SPLIT_VIEW(base->height);
1817 base->height -= view->height;
1819 /* Make room for the title bar. */
1823 /* Make room for the title bar. */
1828 foreach_displayed_view (view, i) {
1830 view->win = newwin(view->height, 0, offset, 0);
1832 die("Failed to create %s view", view->name);
1834 scrollok(view->win, TRUE);
1836 view->title = newwin(1, 0, offset + view->height, 0);
1838 die("Failed to create title window");
1841 wresize(view->win, view->height, view->width);
1842 mvwin(view->win, offset, 0);
1843 mvwin(view->title, offset + view->height, 0);
1846 offset += view->height + 1;
1851 redraw_display(void)
1856 foreach_displayed_view (view, i) {
1858 update_view_title(view);
1863 update_display_cursor(struct view *view)
1865 /* Move the cursor to the right-most column of the cursor line.
1867 * XXX: This could turn out to be a bit expensive, but it ensures that
1868 * the cursor does not jump around. */
1870 wmove(view->win, view->lineno - view->offset, view->width - 1);
1871 wrefresh(view->win);
1879 /* Scrolling backend */
1881 do_scroll_view(struct view *view, int lines)
1883 bool redraw_current_line = FALSE;
1885 /* The rendering expects the new offset. */
1886 view->offset += lines;
1888 assert(0 <= view->offset && view->offset < view->lines);
1891 /* Move current line into the view. */
1892 if (view->lineno < view->offset) {
1893 view->lineno = view->offset;
1894 redraw_current_line = TRUE;
1895 } else if (view->lineno >= view->offset + view->height) {
1896 view->lineno = view->offset + view->height - 1;
1897 redraw_current_line = TRUE;
1900 assert(view->offset <= view->lineno && view->lineno < view->lines);
1902 /* Redraw the whole screen if scrolling is pointless. */
1903 if (view->height < ABS(lines)) {
1907 int line = lines > 0 ? view->height - lines : 0;
1908 int end = line + ABS(lines);
1910 wscrl(view->win, lines);
1912 for (; line < end; line++) {
1913 if (!draw_view_line(view, line))
1917 if (redraw_current_line)
1918 draw_view_line(view, view->lineno - view->offset);
1921 redrawwin(view->win);
1922 wrefresh(view->win);
1926 /* Scroll frontend */
1928 scroll_view(struct view *view, enum request request)
1932 assert(view_is_displayed(view));
1935 case REQ_SCROLL_PAGE_DOWN:
1936 lines = view->height;
1937 case REQ_SCROLL_LINE_DOWN:
1938 if (view->offset + lines > view->lines)
1939 lines = view->lines - view->offset;
1941 if (lines == 0 || view->offset + view->height >= view->lines) {
1942 report("Cannot scroll beyond the last line");
1947 case REQ_SCROLL_PAGE_UP:
1948 lines = view->height;
1949 case REQ_SCROLL_LINE_UP:
1950 if (lines > view->offset)
1951 lines = view->offset;
1954 report("Cannot scroll beyond the first line");
1962 die("request %d not handled in switch", request);
1965 do_scroll_view(view, lines);
1970 move_view(struct view *view, enum request request)
1972 int scroll_steps = 0;
1976 case REQ_MOVE_FIRST_LINE:
1977 steps = -view->lineno;
1980 case REQ_MOVE_LAST_LINE:
1981 steps = view->lines - view->lineno - 1;
1984 case REQ_MOVE_PAGE_UP:
1985 steps = view->height > view->lineno
1986 ? -view->lineno : -view->height;
1989 case REQ_MOVE_PAGE_DOWN:
1990 steps = view->lineno + view->height >= view->lines
1991 ? view->lines - view->lineno - 1 : view->height;
2003 die("request %d not handled in switch", request);
2006 if (steps <= 0 && view->lineno == 0) {
2007 report("Cannot move beyond the first line");
2010 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2011 report("Cannot move beyond the last line");
2015 /* Move the current line */
2016 view->lineno += steps;
2017 assert(0 <= view->lineno && view->lineno < view->lines);
2019 /* Check whether the view needs to be scrolled */
2020 if (view->lineno < view->offset ||
2021 view->lineno >= view->offset + view->height) {
2022 scroll_steps = steps;
2023 if (steps < 0 && -steps > view->offset) {
2024 scroll_steps = -view->offset;
2026 } else if (steps > 0) {
2027 if (view->lineno == view->lines - 1 &&
2028 view->lines > view->height) {
2029 scroll_steps = view->lines - view->offset - 1;
2030 if (scroll_steps >= view->height)
2031 scroll_steps -= view->height - 1;
2036 if (!view_is_displayed(view)) {
2037 view->offset += scroll_steps;
2038 assert(0 <= view->offset && view->offset < view->lines);
2039 view->ops->select(view, &view->line[view->lineno]);
2043 /* Repaint the old "current" line if we be scrolling */
2044 if (ABS(steps) < view->height)
2045 draw_view_line(view, view->lineno - steps - view->offset);
2048 do_scroll_view(view, scroll_steps);
2052 /* Draw the current line */
2053 draw_view_line(view, view->lineno - view->offset);
2055 redrawwin(view->win);
2056 wrefresh(view->win);
2065 static void search_view(struct view *view, enum request request);
2068 find_next_line(struct view *view, unsigned long lineno, struct line *line)
2070 assert(view_is_displayed(view));
2072 if (!view->ops->grep(view, line))
2075 if (lineno - view->offset >= view->height) {
2076 view->offset = lineno;
2077 view->lineno = lineno;
2081 unsigned long old_lineno = view->lineno - view->offset;
2083 view->lineno = lineno;
2084 draw_view_line(view, old_lineno);
2086 draw_view_line(view, view->lineno - view->offset);
2087 redrawwin(view->win);
2088 wrefresh(view->win);
2091 report("Line %ld matches '%s'", lineno + 1, view->grep);
2096 find_next(struct view *view, enum request request)
2098 unsigned long lineno = view->lineno;
2103 report("No previous search");
2105 search_view(view, request);
2115 case REQ_SEARCH_BACK:
2124 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2125 lineno += direction;
2127 /* Note, lineno is unsigned long so will wrap around in which case it
2128 * will become bigger than view->lines. */
2129 for (; lineno < view->lines; lineno += direction) {
2130 struct line *line = &view->line[lineno];
2132 if (find_next_line(view, lineno, line))
2136 report("No match found for '%s'", view->grep);
2140 search_view(struct view *view, enum request request)
2145 regfree(view->regex);
2148 view->regex = calloc(1, sizeof(*view->regex));
2153 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2154 if (regex_err != 0) {
2155 char buf[SIZEOF_STR] = "unknown error";
2157 regerror(regex_err, view->regex, buf, sizeof(buf));
2158 report("Search failed: %s", buf);
2162 string_copy(view->grep, opt_search);
2164 find_next(view, request);
2168 * Incremental updating
2172 end_update(struct view *view, bool force)
2176 while (!view->ops->read(view, NULL))
2179 set_nonblocking_input(FALSE);
2180 if (view->pipe == stdin)
2188 begin_update(struct view *view)
2191 string_copy(view->cmd, opt_cmd);
2193 /* When running random commands, initially show the
2194 * command in the title. However, it maybe later be
2195 * overwritten if a commit line is selected. */
2196 if (view == VIEW(REQ_VIEW_PAGER))
2197 string_copy(view->ref, view->cmd);
2201 } else if (view == VIEW(REQ_VIEW_TREE)) {
2202 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2203 char path[SIZEOF_STR];
2205 if (strcmp(view->vid, view->id))
2206 opt_path[0] = path[0] = 0;
2207 else if (sq_quote(path, 0, opt_path) >= sizeof(path))
2210 if (!string_format(view->cmd, format, view->id, path))
2214 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2215 const char *id = view->id;
2217 if (!string_format(view->cmd, format, id, id, id, id, id))
2220 /* Put the current ref_* value to the view title ref
2221 * member. This is needed by the blob view. Most other
2222 * views sets it automatically after loading because the
2223 * first line is a commit line. */
2224 string_copy_rev(view->ref, view->id);
2227 /* Special case for the pager view. */
2229 view->pipe = opt_pipe;
2232 view->pipe = popen(view->cmd, "r");
2238 set_nonblocking_input(TRUE);
2243 string_copy_rev(view->vid, view->id);
2248 for (i = 0; i < view->lines; i++)
2249 if (view->line[i].data)
2250 free(view->line[i].data);
2256 view->start_time = time(NULL);
2261 #define ITEM_CHUNK_SIZE 256
2263 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2265 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2266 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2268 if (mem == NULL || num_chunks != num_chunks_new) {
2269 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2270 mem = realloc(mem, *size * item_size);
2276 static struct line *
2277 realloc_lines(struct view *view, size_t line_size)
2279 size_t alloc = view->line_alloc;
2280 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2281 sizeof(*view->line));
2287 view->line_alloc = alloc;
2288 view->line_size = line_size;
2293 update_view(struct view *view)
2295 char in_buffer[BUFSIZ];
2296 char out_buffer[BUFSIZ * 2];
2298 /* The number of lines to read. If too low it will cause too much
2299 * redrawing (and possible flickering), if too high responsiveness
2301 unsigned long lines = view->height;
2302 int redraw_from = -1;
2307 /* Only redraw if lines are visible. */
2308 if (view->offset + view->height >= view->lines)
2309 redraw_from = view->lines - view->offset;
2311 /* FIXME: This is probably not perfect for backgrounded views. */
2312 if (!realloc_lines(view, view->lines + lines))
2315 while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) {
2316 size_t linelen = strlen(line);
2319 line[linelen - 1] = 0;
2321 if (opt_iconv != ICONV_NONE) {
2322 ICONV_CONST char *inbuf = line;
2323 size_t inlen = linelen;
2325 char *outbuf = out_buffer;
2326 size_t outlen = sizeof(out_buffer);
2330 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2331 if (ret != (size_t) -1) {
2333 linelen = strlen(out_buffer);
2337 if (!view->ops->read(view, line))
2347 lines = view->lines;
2348 for (digits = 0; lines; digits++)
2351 /* Keep the displayed view in sync with line number scaling. */
2352 if (digits != view->digits) {
2353 view->digits = digits;
2358 if (!view_is_displayed(view))
2361 if (view == VIEW(REQ_VIEW_TREE)) {
2362 /* Clear the view and redraw everything since the tree sorting
2363 * might have rearranged things. */
2366 } else if (redraw_from >= 0) {
2367 /* If this is an incremental update, redraw the previous line
2368 * since for commits some members could have changed when
2369 * loading the main view. */
2370 if (redraw_from > 0)
2373 /* Since revision graph visualization requires knowledge
2374 * about the parent commit, it causes a further one-off
2375 * needed to be redrawn for incremental updates. */
2376 if (redraw_from > 0 && opt_rev_graph)
2379 /* Incrementally draw avoids flickering. */
2380 redraw_view_from(view, redraw_from);
2383 if (view == VIEW(REQ_VIEW_BLAME))
2384 redraw_view_dirty(view);
2386 /* Update the title _after_ the redraw so that if the redraw picks up a
2387 * commit reference in view->ref it'll be available here. */
2388 update_view_title(view);
2391 if (ferror(view->pipe)) {
2392 report("Failed to read: %s", strerror(errno));
2393 end_update(view, TRUE);
2395 } else if (feof(view->pipe)) {
2397 end_update(view, FALSE);
2403 report("Allocation failure");
2404 end_update(view, TRUE);
2408 static struct line *
2409 add_line_data(struct view *view, void *data, enum line_type type)
2411 struct line *line = &view->line[view->lines++];
2413 memset(line, 0, sizeof(*line));
2420 static struct line *
2421 add_line_text(struct view *view, char *data, enum line_type type)
2424 data = strdup(data);
2426 return data ? add_line_data(view, data, type) : NULL;
2435 OPEN_DEFAULT = 0, /* Use default view switching. */
2436 OPEN_SPLIT = 1, /* Split current view. */
2437 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2438 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2439 OPEN_NOMAXIMIZE = 8 /* Do not maximize the current view. */
2443 open_view(struct view *prev, enum request request, enum open_flags flags)
2445 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2446 bool split = !!(flags & OPEN_SPLIT);
2447 bool reload = !!(flags & OPEN_RELOAD);
2448 bool nomaximize = !!(flags & OPEN_NOMAXIMIZE);
2449 struct view *view = VIEW(request);
2450 int nviews = displayed_views();
2451 struct view *base_view = display[0];
2453 if (view == prev && nviews == 1 && !reload) {
2454 report("Already in %s view", view->name);
2458 if (view->git_dir && !opt_git_dir[0]) {
2459 report("The %s view is disabled in pager view", view->name);
2467 } else if (!nomaximize) {
2468 /* Maximize the current view. */
2469 memset(display, 0, sizeof(display));
2471 display[current_view] = view;
2474 /* Resize the view when switching between split- and full-screen,
2475 * or when switching between two different full-screen views. */
2476 if (nviews != displayed_views() ||
2477 (nviews == 1 && base_view != display[0]))
2481 end_update(view, TRUE);
2483 if (view->ops->open) {
2484 if (!view->ops->open(view)) {
2485 report("Failed to load %s view", view->name);
2489 } else if ((reload || strcmp(view->vid, view->id)) &&
2490 !begin_update(view)) {
2491 report("Failed to load %s view", view->name);
2495 if (split && prev->lineno - prev->offset >= prev->height) {
2496 /* Take the title line into account. */
2497 int lines = prev->lineno - prev->offset - prev->height + 1;
2499 /* Scroll the view that was split if the current line is
2500 * outside the new limited view. */
2501 do_scroll_view(prev, lines);
2504 if (prev && view != prev) {
2505 if (split && !backgrounded) {
2506 /* "Blur" the previous view. */
2507 update_view_title(prev);
2510 view->parent = prev;
2513 if (view->pipe && view->lines == 0) {
2514 /* Clear the old view and let the incremental updating refill
2523 /* If the view is backgrounded the above calls to report()
2524 * won't redraw the view title. */
2526 update_view_title(view);
2530 open_external_viewer(const char *cmd)
2532 def_prog_mode(); /* save current tty modes */
2533 endwin(); /* restore original tty modes */
2535 fprintf(stderr, "Press Enter to continue");
2542 open_mergetool(const char *file)
2544 char cmd[SIZEOF_STR];
2545 char file_sq[SIZEOF_STR];
2547 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2548 string_format(cmd, "git mergetool %s", file_sq)) {
2549 open_external_viewer(cmd);
2554 open_editor(bool from_root, const char *file)
2556 char cmd[SIZEOF_STR];
2557 char file_sq[SIZEOF_STR];
2559 char *prefix = from_root ? opt_cdup : "";
2561 editor = getenv("GIT_EDITOR");
2562 if (!editor && *opt_editor)
2563 editor = opt_editor;
2565 editor = getenv("VISUAL");
2567 editor = getenv("EDITOR");
2571 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2572 string_format(cmd, "%s %s%s", editor, prefix, file_sq)) {
2573 open_external_viewer(cmd);
2578 open_run_request(enum request request)
2580 struct run_request *req = get_run_request(request);
2581 char buf[SIZEOF_STR * 2];
2586 report("Unknown run request");
2594 char *next = strstr(cmd, "%(");
2595 int len = next - cmd;
2602 } else if (!strncmp(next, "%(head)", 7)) {
2605 } else if (!strncmp(next, "%(commit)", 9)) {
2608 } else if (!strncmp(next, "%(blob)", 7)) {
2612 report("Unknown replacement in run request: `%s`", req->cmd);
2616 if (!string_format_from(buf, &bufpos, "%.*s%s", len, cmd, value))
2620 next = strchr(next, ')') + 1;
2624 open_external_viewer(buf);
2628 * User request switch noodle
2632 view_driver(struct view *view, enum request request)
2636 if (request == REQ_NONE) {
2641 if (request > REQ_NONE) {
2642 open_run_request(request);
2643 /* FIXME: When all views can refresh always do this. */
2644 if (view == VIEW(REQ_VIEW_STATUS) ||
2645 view == VIEW(REQ_VIEW_STAGE))
2646 request = REQ_REFRESH;
2651 if (view && view->lines) {
2652 request = view->ops->request(view, request, &view->line[view->lineno]);
2653 if (request == REQ_NONE)
2660 case REQ_MOVE_PAGE_UP:
2661 case REQ_MOVE_PAGE_DOWN:
2662 case REQ_MOVE_FIRST_LINE:
2663 case REQ_MOVE_LAST_LINE:
2664 move_view(view, request);
2667 case REQ_SCROLL_LINE_DOWN:
2668 case REQ_SCROLL_LINE_UP:
2669 case REQ_SCROLL_PAGE_DOWN:
2670 case REQ_SCROLL_PAGE_UP:
2671 scroll_view(view, request);
2674 case REQ_VIEW_BLAME:
2676 report("No file chosen, press %s to open tree view",
2677 get_key(REQ_VIEW_TREE));
2680 open_view(view, request, OPEN_DEFAULT);
2685 report("No file chosen, press %s to open tree view",
2686 get_key(REQ_VIEW_TREE));
2689 open_view(view, request, OPEN_DEFAULT);
2692 case REQ_VIEW_PAGER:
2693 if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2694 report("No pager content, press %s to run command from prompt",
2695 get_key(REQ_PROMPT));
2698 open_view(view, request, OPEN_DEFAULT);
2701 case REQ_VIEW_STAGE:
2702 if (!VIEW(REQ_VIEW_STAGE)->lines) {
2703 report("No stage content, press %s to open the status view and choose file",
2704 get_key(REQ_VIEW_STATUS));
2707 open_view(view, request, OPEN_DEFAULT);
2710 case REQ_VIEW_STATUS:
2711 if (opt_is_inside_work_tree == FALSE) {
2712 report("The status view requires a working tree");
2715 open_view(view, request, OPEN_DEFAULT);
2723 open_view(view, request, OPEN_DEFAULT);
2728 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2730 if ((view == VIEW(REQ_VIEW_DIFF) &&
2731 view->parent == VIEW(REQ_VIEW_MAIN)) ||
2732 (view == VIEW(REQ_VIEW_DIFF) &&
2733 view->parent == VIEW(REQ_VIEW_BLAME)) ||
2734 (view == VIEW(REQ_VIEW_STAGE) &&
2735 view->parent == VIEW(REQ_VIEW_STATUS)) ||
2736 (view == VIEW(REQ_VIEW_BLOB) &&
2737 view->parent == VIEW(REQ_VIEW_TREE))) {
2740 view = view->parent;
2741 line = view->lineno;
2742 move_view(view, request);
2743 if (view_is_displayed(view))
2744 update_view_title(view);
2745 if (line != view->lineno)
2746 view->ops->request(view, REQ_ENTER,
2747 &view->line[view->lineno]);
2750 move_view(view, request);
2756 int nviews = displayed_views();
2757 int next_view = (current_view + 1) % nviews;
2759 if (next_view == current_view) {
2760 report("Only one view is displayed");
2764 current_view = next_view;
2765 /* Blur out the title of the previous view. */
2766 update_view_title(view);
2771 report("Refreshing is not yet supported for the %s view", view->name);
2775 if (displayed_views() == 2)
2776 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
2779 case REQ_TOGGLE_LINENO:
2780 opt_line_number = !opt_line_number;
2784 case REQ_TOGGLE_DATE:
2785 opt_date = !opt_date;
2789 case REQ_TOGGLE_AUTHOR:
2790 opt_author = !opt_author;
2794 case REQ_TOGGLE_REV_GRAPH:
2795 opt_rev_graph = !opt_rev_graph;
2799 case REQ_TOGGLE_REFS:
2800 opt_show_refs = !opt_show_refs;
2805 /* Always reload^Wrerun commands from the prompt. */
2806 open_view(view, opt_request, OPEN_RELOAD);
2810 case REQ_SEARCH_BACK:
2811 search_view(view, request);
2816 find_next(view, request);
2819 case REQ_STOP_LOADING:
2820 for (i = 0; i < ARRAY_SIZE(views); i++) {
2823 report("Stopped loading the %s view", view->name),
2824 end_update(view, TRUE);
2828 case REQ_SHOW_VERSION:
2829 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
2832 case REQ_SCREEN_RESIZE:
2835 case REQ_SCREEN_REDRAW:
2840 report("Nothing to edit");
2845 report("Nothing to enter");
2849 case REQ_VIEW_CLOSE:
2850 /* XXX: Mark closed views by letting view->parent point to the
2851 * view itself. Parents to closed view should never be
2854 view->parent->parent != view->parent) {
2855 memset(display, 0, sizeof(display));
2857 display[current_view] = view->parent;
2858 view->parent = view;
2868 /* An unknown key will show most commonly used commands. */
2869 report("Unknown key, press 'h' for help");
2882 pager_draw(struct view *view, struct line *line, unsigned int lineno)
2884 char *text = line->data;
2886 if (opt_line_number && draw_lineno(view, lineno))
2889 draw_text(view, line->type, text, TRUE);
2894 add_describe_ref(char *buf, size_t *bufpos, char *commit_id, const char *sep)
2896 char refbuf[SIZEOF_STR];
2900 if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id))
2903 pipe = popen(refbuf, "r");
2907 if ((ref = fgets(refbuf, sizeof(refbuf), pipe)))
2908 ref = chomp_string(ref);
2914 /* This is the only fatal call, since it can "corrupt" the buffer. */
2915 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
2922 add_pager_refs(struct view *view, struct line *line)
2924 char buf[SIZEOF_STR];
2925 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
2927 size_t bufpos = 0, refpos = 0;
2928 const char *sep = "Refs: ";
2929 bool is_tag = FALSE;
2931 assert(line->type == LINE_COMMIT);
2933 refs = get_refs(commit_id);
2935 if (view == VIEW(REQ_VIEW_DIFF))
2936 goto try_add_describe_ref;
2941 struct ref *ref = refs[refpos];
2942 char *fmt = ref->tag ? "%s[%s]" :
2943 ref->remote ? "%s<%s>" : "%s%s";
2945 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
2950 } while (refs[refpos++]->next);
2952 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
2953 try_add_describe_ref:
2954 /* Add <tag>-g<commit_id> "fake" reference. */
2955 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
2962 if (!realloc_lines(view, view->line_size + 1))
2965 add_line_text(view, buf, LINE_PP_REFS);
2969 pager_read(struct view *view, char *data)
2976 line = add_line_text(view, data, get_line_type(data));
2980 if (line->type == LINE_COMMIT &&
2981 (view == VIEW(REQ_VIEW_DIFF) ||
2982 view == VIEW(REQ_VIEW_LOG)))
2983 add_pager_refs(view, line);
2989 pager_request(struct view *view, enum request request, struct line *line)
2993 if (request != REQ_ENTER)
2996 if (line->type == LINE_COMMIT &&
2997 (view == VIEW(REQ_VIEW_LOG) ||
2998 view == VIEW(REQ_VIEW_PAGER))) {
2999 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3003 /* Always scroll the view even if it was split. That way
3004 * you can use Enter to scroll through the log view and
3005 * split open each commit diff. */
3006 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3008 /* FIXME: A minor workaround. Scrolling the view will call report("")
3009 * but if we are scrolling a non-current view this won't properly
3010 * update the view title. */
3012 update_view_title(view);
3018 pager_grep(struct view *view, struct line *line)
3021 char *text = line->data;
3026 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3033 pager_select(struct view *view, struct line *line)
3035 if (line->type == LINE_COMMIT) {
3036 char *text = (char *)line->data + STRING_SIZE("commit ");
3038 if (view != VIEW(REQ_VIEW_PAGER))
3039 string_copy_rev(view->ref, text);
3040 string_copy_rev(ref_commit, text);
3044 static struct view_ops pager_ops = {
3060 help_open(struct view *view)
3063 int lines = ARRAY_SIZE(req_info) + 2;
3066 if (view->lines > 0)
3069 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3070 if (!req_info[i].request)
3073 lines += run_requests + 1;
3075 view->line = calloc(lines, sizeof(*view->line));
3079 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3081 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3084 if (req_info[i].request == REQ_NONE)
3087 if (!req_info[i].request) {
3088 add_line_text(view, "", LINE_DEFAULT);
3089 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3093 key = get_key(req_info[i].request);
3095 key = "(no key defined)";
3097 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
3100 add_line_text(view, buf, LINE_DEFAULT);
3104 add_line_text(view, "", LINE_DEFAULT);
3105 add_line_text(view, "External commands:", LINE_DEFAULT);
3108 for (i = 0; i < run_requests; i++) {
3109 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3115 key = get_key_name(req->key);
3117 key = "(no key defined)";
3119 if (!string_format(buf, " %-10s %-14s `%s`",
3120 keymap_table[req->keymap].name,
3124 add_line_text(view, buf, LINE_DEFAULT);
3130 static struct view_ops help_ops = {
3145 struct tree_stack_entry {
3146 struct tree_stack_entry *prev; /* Entry below this in the stack */
3147 unsigned long lineno; /* Line number to restore */
3148 char *name; /* Position of name in opt_path */
3151 /* The top of the path stack. */
3152 static struct tree_stack_entry *tree_stack = NULL;
3153 unsigned long tree_lineno = 0;
3156 pop_tree_stack_entry(void)
3158 struct tree_stack_entry *entry = tree_stack;
3160 tree_lineno = entry->lineno;
3162 tree_stack = entry->prev;
3167 push_tree_stack_entry(char *name, unsigned long lineno)
3169 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3170 size_t pathlen = strlen(opt_path);
3175 entry->prev = tree_stack;
3176 entry->name = opt_path + pathlen;
3179 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3180 pop_tree_stack_entry();
3184 /* Move the current line to the first tree entry. */
3186 entry->lineno = lineno;
3189 /* Parse output from git-ls-tree(1):
3191 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3192 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3193 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3194 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3197 #define SIZEOF_TREE_ATTR \
3198 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3200 #define TREE_UP_FORMAT "040000 tree %s\t.."
3203 tree_compare_entry(enum line_type type1, char *name1,
3204 enum line_type type2, char *name2)
3206 if (type1 != type2) {
3207 if (type1 == LINE_TREE_DIR)
3212 return strcmp(name1, name2);
3216 tree_path(struct line *line)
3218 char *path = line->data;
3220 return path + SIZEOF_TREE_ATTR;
3224 tree_read(struct view *view, char *text)
3226 size_t textlen = text ? strlen(text) : 0;
3227 char buf[SIZEOF_STR];
3229 enum line_type type;
3230 bool first_read = view->lines == 0;
3234 if (textlen <= SIZEOF_TREE_ATTR)
3237 type = text[STRING_SIZE("100644 ")] == 't'
3238 ? LINE_TREE_DIR : LINE_TREE_FILE;
3241 /* Add path info line */
3242 if (!string_format(buf, "Directory path /%s", opt_path) ||
3243 !realloc_lines(view, view->line_size + 1) ||
3244 !add_line_text(view, buf, LINE_DEFAULT))
3247 /* Insert "link" to parent directory. */
3249 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
3250 !realloc_lines(view, view->line_size + 1) ||
3251 !add_line_text(view, buf, LINE_TREE_DIR))
3256 /* Strip the path part ... */
3258 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3259 size_t striplen = strlen(opt_path);
3260 char *path = text + SIZEOF_TREE_ATTR;
3262 if (pathlen > striplen)
3263 memmove(path, path + striplen,
3264 pathlen - striplen + 1);
3267 /* Skip "Directory ..." and ".." line. */
3268 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
3269 struct line *line = &view->line[pos];
3270 char *path1 = tree_path(line);
3271 char *path2 = text + SIZEOF_TREE_ATTR;
3272 int cmp = tree_compare_entry(line->type, path1, type, path2);
3277 text = strdup(text);
3281 if (view->lines > pos)
3282 memmove(&view->line[pos + 1], &view->line[pos],
3283 (view->lines - pos) * sizeof(*line));
3285 line = &view->line[pos];
3292 if (!add_line_text(view, text, type))
3295 if (tree_lineno > view->lineno) {
3296 view->lineno = tree_lineno;
3304 tree_request(struct view *view, enum request request, struct line *line)
3306 enum open_flags flags;
3308 if (request == REQ_VIEW_BLAME) {
3309 char *filename = tree_path(line);
3311 if (line->type == LINE_TREE_DIR) {
3312 report("Cannot show blame for directory %s", opt_path);
3316 string_copy(opt_ref, view->vid);
3317 string_format(opt_file, "%s%s", opt_path, filename);
3320 if (request == REQ_TREE_PARENT) {
3323 request = REQ_ENTER;
3324 line = &view->line[1];
3326 /* quit view if at top of tree */
3327 return REQ_VIEW_CLOSE;
3330 if (request != REQ_ENTER)
3333 /* Cleanup the stack if the tree view is at a different tree. */
3334 while (!*opt_path && tree_stack)
3335 pop_tree_stack_entry();
3337 switch (line->type) {
3339 /* Depending on whether it is a subdir or parent (updir?) link
3340 * mangle the path buffer. */
3341 if (line == &view->line[1] && *opt_path) {
3342 pop_tree_stack_entry();
3345 char *basename = tree_path(line);
3347 push_tree_stack_entry(basename, view->lineno);
3350 /* Trees and subtrees share the same ID, so they are not not
3351 * unique like blobs. */
3352 flags = OPEN_RELOAD;
3353 request = REQ_VIEW_TREE;
3356 case LINE_TREE_FILE:
3357 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3358 request = REQ_VIEW_BLOB;
3365 open_view(view, request, flags);
3366 if (request == REQ_VIEW_TREE) {
3367 view->lineno = tree_lineno;
3374 tree_select(struct view *view, struct line *line)
3376 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3378 if (line->type == LINE_TREE_FILE) {
3379 string_copy_rev(ref_blob, text);
3381 } else if (line->type != LINE_TREE_DIR) {
3385 string_copy_rev(view->ref, text);
3388 static struct view_ops tree_ops = {
3399 blob_read(struct view *view, char *line)
3403 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3406 static struct view_ops blob_ops = {
3419 * Loading the blame view is a two phase job:
3421 * 1. File content is read either using opt_file from the
3422 * filesystem or using git-cat-file.
3423 * 2. Then blame information is incrementally added by
3424 * reading output from git-blame.
3427 struct blame_commit {
3428 char id[SIZEOF_REV]; /* SHA1 ID. */
3429 char title[128]; /* First line of the commit message. */
3430 char author[75]; /* Author of the commit. */
3431 struct tm time; /* Date from the author ident. */
3432 char filename[128]; /* Name of file. */
3436 struct blame_commit *commit;
3437 unsigned int header:1;
3441 #define BLAME_CAT_FILE_CMD "git cat-file blob %s:%s"
3442 #define BLAME_INCREMENTAL_CMD "git blame --incremental %s %s"
3445 blame_open(struct view *view)
3447 char path[SIZEOF_STR];
3448 char ref[SIZEOF_STR] = "";
3450 if (sq_quote(path, 0, opt_file) >= sizeof(path))
3453 if (*opt_ref && sq_quote(ref, 0, opt_ref) >= sizeof(ref))
3457 if (!string_format(view->cmd, BLAME_CAT_FILE_CMD, ref, path))
3460 view->pipe = fopen(opt_file, "r");
3462 !string_format(view->cmd, BLAME_CAT_FILE_CMD, "HEAD", path))
3467 view->pipe = popen(view->cmd, "r");
3471 if (!string_format(view->cmd, BLAME_INCREMENTAL_CMD, ref, path))
3474 string_format(view->ref, "%s ...", opt_file);
3475 string_copy_rev(view->vid, opt_file);
3476 set_nonblocking_input(TRUE);
3481 for (i = 0; i < view->lines; i++)
3482 free(view->line[i].data);
3486 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
3487 view->offset = view->lines = view->lineno = 0;
3489 view->start_time = time(NULL);
3494 static struct blame_commit *
3495 get_blame_commit(struct view *view, const char *id)
3499 for (i = 0; i < view->lines; i++) {
3500 struct blame *blame = view->line[i].data;
3505 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3506 return blame->commit;
3510 struct blame_commit *commit = calloc(1, sizeof(*commit));
3513 string_ncopy(commit->id, id, SIZEOF_REV);
3519 parse_number(char **posref, size_t *number, size_t min, size_t max)
3521 char *pos = *posref;
3524 pos = strchr(pos + 1, ' ');
3525 if (!pos || !isdigit(pos[1]))
3527 *number = atoi(pos + 1);
3528 if (*number < min || *number > max)
3535 static struct blame_commit *
3536 parse_blame_commit(struct view *view, char *text, int *blamed)
3538 struct blame_commit *commit;
3539 struct blame *blame;
3540 char *pos = text + SIZEOF_REV - 1;
3544 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3547 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3548 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3551 commit = get_blame_commit(view, text);
3557 struct line *line = &view->line[lineno + group - 1];
3560 blame->commit = commit;
3561 blame->header = !group;
3569 blame_read_file(struct view *view, char *line)
3574 if (view->lines > 0)
3575 pipe = popen(view->cmd, "r");
3576 else if (!view->parent)
3577 die("No blame exist for %s", view->vid);
3580 report("Failed to load blame data");
3589 size_t linelen = strlen(line);
3590 struct blame *blame = malloc(sizeof(*blame) + linelen);
3592 blame->commit = NULL;
3593 strncpy(blame->text, line, linelen);
3594 blame->text[linelen] = 0;
3595 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3600 match_blame_header(const char *name, char **line)
3602 size_t namelen = strlen(name);
3603 bool matched = !strncmp(name, *line, namelen);
3612 blame_read(struct view *view, char *line)
3614 static struct blame_commit *commit = NULL;
3615 static int blamed = 0;
3616 static time_t author_time;
3619 return blame_read_file(view, line);
3625 string_format(view->ref, "%s", view->vid);
3626 if (view_is_displayed(view)) {
3627 update_view_title(view);
3628 redraw_view_from(view, 0);
3634 commit = parse_blame_commit(view, line, &blamed);
3635 string_format(view->ref, "%s %2d%%", view->vid,
3636 blamed * 100 / view->lines);
3638 } else if (match_blame_header("author ", &line)) {
3639 string_ncopy(commit->author, line, strlen(line));
3641 } else if (match_blame_header("author-time ", &line)) {
3642 author_time = (time_t) atol(line);
3644 } else if (match_blame_header("author-tz ", &line)) {
3647 tz = ('0' - line[1]) * 60 * 60 * 10;
3648 tz += ('0' - line[2]) * 60 * 60;
3649 tz += ('0' - line[3]) * 60;
3650 tz += ('0' - line[4]) * 60;
3656 gmtime_r(&author_time, &commit->time);
3658 } else if (match_blame_header("summary ", &line)) {
3659 string_ncopy(commit->title, line, strlen(line));
3661 } else if (match_blame_header("filename ", &line)) {
3662 string_ncopy(commit->filename, line, strlen(line));
3670 blame_draw(struct view *view, struct line *line, unsigned int lineno)
3672 struct blame *blame = line->data;
3673 struct tm *time = NULL;
3674 char *id = NULL, *author = NULL;
3676 if (blame->commit && *blame->commit->filename) {
3677 id = blame->commit->id;
3678 author = blame->commit->author;
3679 time = &blame->commit->time;
3682 if (opt_date && draw_date(view, time))
3686 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
3689 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
3692 if (draw_lineno(view, lineno))
3695 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
3700 blame_request(struct view *view, enum request request, struct line *line)
3702 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3703 struct blame *blame = line->data;
3707 if (!blame->commit) {
3708 report("No commit loaded yet");
3712 if (!strcmp(blame->commit->id, NULL_ID)) {
3713 char path[SIZEOF_STR];
3715 if (sq_quote(path, 0, view->vid) >= sizeof(path))
3717 string_format(opt_cmd, "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s 2>/dev/null", path);
3720 open_view(view, REQ_VIEW_DIFF, flags);
3731 blame_grep(struct view *view, struct line *line)
3733 struct blame *blame = line->data;
3734 struct blame_commit *commit = blame->commit;
3737 #define MATCH(text, on) \
3738 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3741 char buf[DATE_COLS + 1];
3743 if (MATCH(commit->title, 1) ||
3744 MATCH(commit->author, opt_author) ||
3745 MATCH(commit->id, opt_date))
3748 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
3753 return MATCH(blame->text, 1);
3759 blame_select(struct view *view, struct line *line)
3761 struct blame *blame = line->data;
3762 struct blame_commit *commit = blame->commit;
3767 if (!strcmp(commit->id, NULL_ID))
3768 string_ncopy(ref_commit, "HEAD", 4);
3770 string_copy_rev(ref_commit, commit->id);
3773 static struct view_ops blame_ops = {
3791 char rev[SIZEOF_REV];
3792 char name[SIZEOF_STR];
3796 char rev[SIZEOF_REV];
3797 char name[SIZEOF_STR];
3801 static char status_onbranch[SIZEOF_STR];
3802 static struct status stage_status;
3803 static enum line_type stage_line_type;
3804 static size_t stage_chunks;
3805 static int *stage_chunk;
3807 /* Get fields from the diff line:
3808 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3811 status_get_diff(struct status *file, char *buf, size_t bufsize)
3813 char *old_mode = buf + 1;
3814 char *new_mode = buf + 8;
3815 char *old_rev = buf + 15;
3816 char *new_rev = buf + 56;
3817 char *status = buf + 97;
3820 old_mode[-1] != ':' ||
3821 new_mode[-1] != ' ' ||
3822 old_rev[-1] != ' ' ||
3823 new_rev[-1] != ' ' ||
3827 file->status = *status;
3829 string_copy_rev(file->old.rev, old_rev);
3830 string_copy_rev(file->new.rev, new_rev);
3832 file->old.mode = strtoul(old_mode, NULL, 8);
3833 file->new.mode = strtoul(new_mode, NULL, 8);
3835 file->old.name[0] = file->new.name[0] = 0;
3841 status_run(struct view *view, const char cmd[], char status, enum line_type type)
3843 struct status *file = NULL;
3844 struct status *unmerged = NULL;
3845 char buf[SIZEOF_STR * 4];
3849 pipe = popen(cmd, "r");
3853 add_line_data(view, NULL, type);
3855 while (!feof(pipe) && !ferror(pipe)) {
3859 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3862 bufsize += readsize;
3864 /* Process while we have NUL chars. */
3865 while ((sep = memchr(buf, 0, bufsize))) {
3866 size_t sepsize = sep - buf + 1;
3869 if (!realloc_lines(view, view->line_size + 1))
3872 file = calloc(1, sizeof(*file));
3876 add_line_data(view, file, type);
3879 /* Parse diff info part. */
3881 file->status = status;
3883 string_copy(file->old.rev, NULL_ID);
3885 } else if (!file->status) {
3886 if (!status_get_diff(file, buf, sepsize))
3890 memmove(buf, sep + 1, bufsize);
3892 sep = memchr(buf, 0, bufsize);
3895 sepsize = sep - buf + 1;
3897 /* Collapse all 'M'odified entries that
3898 * follow a associated 'U'nmerged entry.
3900 if (file->status == 'U') {
3903 } else if (unmerged) {
3904 int collapse = !strcmp(buf, unmerged->new.name);
3915 /* Grab the old name for rename/copy. */
3916 if (!*file->old.name &&
3917 (file->status == 'R' || file->status == 'C')) {
3918 sepsize = sep - buf + 1;
3919 string_ncopy(file->old.name, buf, sepsize);
3921 memmove(buf, sep + 1, bufsize);
3923 sep = memchr(buf, 0, bufsize);
3926 sepsize = sep - buf + 1;
3929 /* git-ls-files just delivers a NUL separated
3930 * list of file names similar to the second half
3931 * of the git-diff-* output. */
3932 string_ncopy(file->new.name, buf, sepsize);
3933 if (!*file->old.name)
3934 string_copy(file->old.name, file->new.name);
3936 memmove(buf, sep + 1, bufsize);
3947 if (!view->line[view->lines - 1].data)
3948 add_line_data(view, NULL, LINE_STAT_NONE);
3954 /* Don't show unmerged entries in the staged section. */
3955 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD"
3956 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
3957 #define STATUS_LIST_OTHER_CMD \
3958 "git ls-files -z --others --exclude-per-directory=.gitignore"
3959 #define STATUS_LIST_NO_HEAD_CMD \
3960 "git ls-files -z --cached --exclude-per-directory=.gitignore"
3962 #define STATUS_DIFF_INDEX_SHOW_CMD \
3963 "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null"
3965 #define STATUS_DIFF_FILES_SHOW_CMD \
3966 "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null"
3968 #define STATUS_DIFF_NO_HEAD_SHOW_CMD \
3969 "git diff --no-color --patch-with-stat /dev/null %s 2>/dev/null"
3971 /* First parse staged info using git-diff-index(1), then parse unstaged
3972 * info using git-diff-files(1), and finally untracked files using
3973 * git-ls-files(1). */
3975 status_open(struct view *view)
3977 struct stat statbuf;
3978 char exclude[SIZEOF_STR];
3979 char indexcmd[SIZEOF_STR] = STATUS_DIFF_INDEX_CMD;
3980 char othercmd[SIZEOF_STR] = STATUS_LIST_OTHER_CMD;
3981 unsigned long prev_lineno = view->lineno;
3982 char indexstatus = 0;
3985 for (i = 0; i < view->lines; i++)
3986 free(view->line[i].data);
3988 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
3991 if (!realloc_lines(view, view->line_size + 7))
3994 add_line_data(view, NULL, LINE_STAT_HEAD);
3996 string_copy(status_onbranch, "Initial commit");
3997 else if (!*opt_head)
3998 string_copy(status_onbranch, "Not currently on any branch");
3999 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4003 string_copy(indexcmd, STATUS_LIST_NO_HEAD_CMD);
4007 if (!string_format(exclude, "%s/info/exclude", opt_git_dir))
4010 if (stat(exclude, &statbuf) >= 0) {
4011 size_t cmdsize = strlen(othercmd);
4013 if (!string_format_from(othercmd, &cmdsize, " %s", "--exclude-from=") ||
4014 sq_quote(othercmd, cmdsize, exclude) >= sizeof(othercmd))
4017 cmdsize = strlen(indexcmd);
4019 (!string_format_from(indexcmd, &cmdsize, " %s", "--exclude-from=") ||
4020 sq_quote(indexcmd, cmdsize, exclude) >= sizeof(indexcmd)))
4024 system("git update-index -q --refresh >/dev/null 2>/dev/null");
4026 if (!status_run(view, indexcmd, indexstatus, LINE_STAT_STAGED) ||
4027 !status_run(view, STATUS_DIFF_FILES_CMD, 0, LINE_STAT_UNSTAGED) ||
4028 !status_run(view, othercmd, '?', LINE_STAT_UNTRACKED))
4031 /* If all went well restore the previous line number to stay in
4032 * the context or select a line with something that can be
4034 if (prev_lineno >= view->lines)
4035 prev_lineno = view->lines - 1;
4036 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4038 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4041 /* If the above fails, always skip the "On branch" line. */
4042 if (prev_lineno < view->lines)
4043 view->lineno = prev_lineno;
4047 if (view->lineno < view->offset)
4048 view->offset = view->lineno;
4049 else if (view->offset + view->height <= view->lineno)
4050 view->offset = view->lineno - view->height + 1;
4056 status_draw(struct view *view, struct line *line, unsigned int lineno)
4058 struct status *status = line->data;
4059 enum line_type type;
4063 switch (line->type) {
4064 case LINE_STAT_STAGED:
4065 type = LINE_STAT_SECTION;
4066 text = "Changes to be committed:";
4069 case LINE_STAT_UNSTAGED:
4070 type = LINE_STAT_SECTION;
4071 text = "Changed but not updated:";
4074 case LINE_STAT_UNTRACKED:
4075 type = LINE_STAT_SECTION;
4076 text = "Untracked files:";
4079 case LINE_STAT_NONE:
4080 type = LINE_DEFAULT;
4081 text = " (no files)";
4084 case LINE_STAT_HEAD:
4085 type = LINE_STAT_HEAD;
4086 text = status_onbranch;
4093 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4095 buf[0] = status->status;
4096 if (draw_text(view, line->type, buf, TRUE))
4098 type = LINE_DEFAULT;
4099 text = status->new.name;
4102 draw_text(view, type, text, TRUE);
4107 status_enter(struct view *view, struct line *line)
4109 struct status *status = line->data;
4110 char oldpath[SIZEOF_STR] = "";
4111 char newpath[SIZEOF_STR] = "";
4114 enum open_flags split;
4116 if (line->type == LINE_STAT_NONE ||
4117 (!status && line[1].type == LINE_STAT_NONE)) {
4118 report("No file to diff");
4123 if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath))
4125 /* Diffs for unmerged entries are empty when pasing the
4126 * new path, so leave it empty. */
4127 if (status->status != 'U' &&
4128 sq_quote(newpath, 0, status->new.name) >= sizeof(newpath))
4133 line->type != LINE_STAT_UNTRACKED &&
4134 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
4137 switch (line->type) {
4138 case LINE_STAT_STAGED:
4140 if (!string_format_from(opt_cmd, &cmdsize,
4141 STATUS_DIFF_NO_HEAD_SHOW_CMD,
4145 if (!string_format_from(opt_cmd, &cmdsize,
4146 STATUS_DIFF_INDEX_SHOW_CMD,
4152 info = "Staged changes to %s";
4154 info = "Staged changes";
4157 case LINE_STAT_UNSTAGED:
4158 if (!string_format_from(opt_cmd, &cmdsize,
4159 STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath))
4162 info = "Unstaged changes to %s";
4164 info = "Unstaged changes";
4167 case LINE_STAT_UNTRACKED:
4172 report("No file to show");
4176 opt_pipe = fopen(status->new.name, "r");
4177 info = "Untracked file %s";
4180 case LINE_STAT_HEAD:
4184 die("line type %d not handled in switch", line->type);
4187 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4188 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | split);
4189 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4191 stage_status = *status;
4193 memset(&stage_status, 0, sizeof(stage_status));
4196 stage_line_type = line->type;
4198 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4205 status_exists(struct status *status, enum line_type type)
4207 struct view *view = VIEW(REQ_VIEW_STATUS);
4210 for (line = view->line; line < view->line + view->lines; line++) {
4211 struct status *pos = line->data;
4213 if (line->type == type && pos &&
4214 !strcmp(status->new.name, pos->new.name))
4223 status_update_prepare(enum line_type type)
4225 char cmd[SIZEOF_STR];
4229 type != LINE_STAT_UNTRACKED &&
4230 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4234 case LINE_STAT_STAGED:
4235 string_add(cmd, cmdsize, "git update-index -z --index-info");
4238 case LINE_STAT_UNSTAGED:
4239 case LINE_STAT_UNTRACKED:
4240 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
4244 die("line type %d not handled in switch", type);
4247 return popen(cmd, "w");
4251 status_update_write(FILE *pipe, struct status *status, enum line_type type)
4253 char buf[SIZEOF_STR];
4258 case LINE_STAT_STAGED:
4259 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4262 status->old.name, 0))
4266 case LINE_STAT_UNSTAGED:
4267 case LINE_STAT_UNTRACKED:
4268 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4273 die("line type %d not handled in switch", type);
4276 while (!ferror(pipe) && written < bufsize) {
4277 written += fwrite(buf + written, 1, bufsize - written, pipe);
4280 return written == bufsize;
4284 status_update_file(struct status *status, enum line_type type)
4286 FILE *pipe = status_update_prepare(type);
4292 result = status_update_write(pipe, status, type);
4298 status_update_files(struct view *view, struct line *line)
4300 FILE *pipe = status_update_prepare(line->type);
4302 struct line *pos = view->line + view->lines;
4309 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4312 for (file = 0, done = 0; result && file < files; line++, file++) {
4313 int almost_done = file * 100 / files;
4315 if (almost_done > done) {
4317 string_format(view->ref, "updating file %u of %u (%d%% done)",
4319 update_view_title(view);
4321 result = status_update_write(pipe, line->data, line->type);
4329 status_update(struct view *view)
4331 struct line *line = &view->line[view->lineno];
4333 assert(view->lines);
4336 /* This should work even for the "On branch" line. */
4337 if (line < view->line + view->lines && !line[1].data) {
4338 report("Nothing to update");
4342 if (!status_update_files(view, line + 1)) {
4343 report("Failed to update file status");
4347 } else if (!status_update_file(line->data, line->type)) {
4348 report("Failed to update file status");
4356 status_request(struct view *view, enum request request, struct line *line)
4358 struct status *status = line->data;
4361 case REQ_STATUS_UPDATE:
4362 if (!status_update(view))
4366 case REQ_STATUS_MERGE:
4367 if (!status || status->status != 'U') {
4368 report("Merging only possible for files with unmerged status ('U').");
4371 open_mergetool(status->new.name);
4378 open_editor(status->status != '?', status->new.name);
4381 case REQ_VIEW_BLAME:
4383 string_copy(opt_file, status->new.name);
4389 /* After returning the status view has been split to
4390 * show the stage view. No further reloading is
4392 status_enter(view, line);
4396 /* Simply reload the view. */
4403 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4409 status_select(struct view *view, struct line *line)
4411 struct status *status = line->data;
4412 char file[SIZEOF_STR] = "all files";
4416 if (status && !string_format(file, "'%s'", status->new.name))
4419 if (!status && line[1].type == LINE_STAT_NONE)
4422 switch (line->type) {
4423 case LINE_STAT_STAGED:
4424 text = "Press %s to unstage %s for commit";
4427 case LINE_STAT_UNSTAGED:
4428 text = "Press %s to stage %s for commit";
4431 case LINE_STAT_UNTRACKED:
4432 text = "Press %s to stage %s for addition";
4435 case LINE_STAT_HEAD:
4436 case LINE_STAT_NONE:
4437 text = "Nothing to update";
4441 die("line type %d not handled in switch", line->type);
4444 if (status && status->status == 'U') {
4445 text = "Press %s to resolve conflict in %s";
4446 key = get_key(REQ_STATUS_MERGE);
4449 key = get_key(REQ_STATUS_UPDATE);
4452 string_format(view->ref, text, key, file);
4456 status_grep(struct view *view, struct line *line)
4458 struct status *status = line->data;
4459 enum { S_STATUS, S_NAME, S_END } state;
4466 for (state = S_STATUS; state < S_END; state++) {
4470 case S_NAME: text = status->new.name; break;
4472 buf[0] = status->status;
4480 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4487 static struct view_ops status_ops = {
4499 stage_diff_line(FILE *pipe, struct line *line)
4501 char *buf = line->data;
4502 size_t bufsize = strlen(buf);
4505 while (!ferror(pipe) && written < bufsize) {
4506 written += fwrite(buf + written, 1, bufsize - written, pipe);
4511 return written == bufsize;
4515 stage_diff_write(FILE *pipe, struct line *line, struct line *end)
4517 while (line < end) {
4518 if (!stage_diff_line(pipe, line++))
4520 if (line->type == LINE_DIFF_CHUNK ||
4521 line->type == LINE_DIFF_HEADER)
4528 static struct line *
4529 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4531 for (; view->line < line; line--)
4532 if (line->type == type)
4539 stage_update_chunk(struct view *view, struct line *chunk)
4541 char cmd[SIZEOF_STR];
4543 struct line *diff_hdr;
4546 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4551 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4554 if (!string_format_from(cmd, &cmdsize,
4555 "git apply --whitespace=nowarn --cached %s - && "
4556 "git update-index -q --unmerged --refresh 2>/dev/null",
4557 stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
4560 pipe = popen(cmd, "w");
4564 if (!stage_diff_write(pipe, diff_hdr, chunk) ||
4565 !stage_diff_write(pipe, chunk, view->line + view->lines))
4570 return chunk ? TRUE : FALSE;
4574 stage_update(struct view *view, struct line *line)
4576 struct line *chunk = NULL;
4578 if (!opt_no_head && stage_line_type != LINE_STAT_UNTRACKED)
4579 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4582 if (!stage_update_chunk(view, chunk)) {
4583 report("Failed to apply chunk");
4587 } else if (!stage_status.status) {
4588 view = VIEW(REQ_VIEW_STATUS);
4590 for (line = view->line; line < view->line + view->lines; line++)
4591 if (line->type == stage_line_type)
4594 if (!status_update_files(view, line + 1)) {
4595 report("Failed to update files");
4599 } else if (!status_update_file(&stage_status, stage_line_type)) {
4600 report("Failed to update file");
4608 stage_next(struct view *view, struct line *line)
4612 if (!stage_chunks) {
4613 static size_t alloc = 0;
4616 for (line = view->line; line < view->line + view->lines; line++) {
4617 if (line->type != LINE_DIFF_CHUNK)
4620 tmp = realloc_items(stage_chunk, &alloc,
4621 stage_chunks, sizeof(*tmp));
4623 report("Allocation failure");
4628 stage_chunk[stage_chunks++] = line - view->line;
4632 for (i = 0; i < stage_chunks; i++) {
4633 if (stage_chunk[i] > view->lineno) {
4634 do_scroll_view(view, stage_chunk[i] - view->lineno);
4635 report("Chunk %d of %d", i + 1, stage_chunks);
4640 report("No next chunk found");
4644 stage_request(struct view *view, enum request request, struct line *line)
4647 case REQ_STATUS_UPDATE:
4648 if (!stage_update(view, line))
4652 case REQ_STAGE_NEXT:
4653 if (stage_line_type == LINE_STAT_UNTRACKED) {
4654 report("File is untracked; press %s to add",
4655 get_key(REQ_STATUS_UPDATE));
4658 stage_next(view, line);
4662 if (!stage_status.new.name[0])
4665 open_editor(stage_status.status != '?', stage_status.new.name);
4669 /* Reload everything ... */
4672 case REQ_VIEW_BLAME:
4673 if (stage_status.new.name[0]) {
4674 string_copy(opt_file, stage_status.new.name);
4680 return pager_request(view, request, line);
4686 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4688 /* Check whether the staged entry still exists, and close the
4689 * stage view if it doesn't. */
4690 if (!status_exists(&stage_status, stage_line_type))
4691 return REQ_VIEW_CLOSE;
4693 if (stage_line_type == LINE_STAT_UNTRACKED)
4694 opt_pipe = fopen(stage_status.new.name, "r");
4696 string_copy(opt_cmd, view->cmd);
4697 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4702 static struct view_ops stage_ops = {
4718 char id[SIZEOF_REV]; /* SHA1 ID. */
4719 char title[128]; /* First line of the commit message. */
4720 char author[75]; /* Author of the commit. */
4721 struct tm time; /* Date from the author ident. */
4722 struct ref **refs; /* Repository references. */
4723 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
4724 size_t graph_size; /* The width of the graph array. */
4725 bool has_parents; /* Rewritten --parents seen. */
4728 /* Size of rev graph with no "padding" columns */
4729 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
4732 struct rev_graph *prev, *next, *parents;
4733 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
4735 struct commit *commit;
4737 unsigned int boundary:1;
4740 /* Parents of the commit being visualized. */
4741 static struct rev_graph graph_parents[4];
4743 /* The current stack of revisions on the graph. */
4744 static struct rev_graph graph_stacks[4] = {
4745 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
4746 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
4747 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
4748 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
4752 graph_parent_is_merge(struct rev_graph *graph)
4754 return graph->parents->size > 1;
4758 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
4760 struct commit *commit = graph->commit;
4762 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
4763 commit->graph[commit->graph_size++] = symbol;
4767 done_rev_graph(struct rev_graph *graph)
4769 if (graph_parent_is_merge(graph) &&
4770 graph->pos < graph->size - 1 &&
4771 graph->next->size == graph->size + graph->parents->size - 1) {
4772 size_t i = graph->pos + graph->parents->size - 1;
4774 graph->commit->graph_size = i * 2;
4775 while (i < graph->next->size - 1) {
4776 append_to_rev_graph(graph, ' ');
4777 append_to_rev_graph(graph, '\\');
4782 graph->size = graph->pos = 0;
4783 graph->commit = NULL;
4784 memset(graph->parents, 0, sizeof(*graph->parents));
4788 push_rev_graph(struct rev_graph *graph, char *parent)
4792 /* "Collapse" duplicate parents lines.
4794 * FIXME: This needs to also update update the drawn graph but
4795 * for now it just serves as a method for pruning graph lines. */
4796 for (i = 0; i < graph->size; i++)
4797 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
4800 if (graph->size < SIZEOF_REVITEMS) {
4801 string_copy_rev(graph->rev[graph->size++], parent);
4806 get_rev_graph_symbol(struct rev_graph *graph)
4810 if (graph->boundary)
4811 symbol = REVGRAPH_BOUND;
4812 else if (graph->parents->size == 0)
4813 symbol = REVGRAPH_INIT;
4814 else if (graph_parent_is_merge(graph))
4815 symbol = REVGRAPH_MERGE;
4816 else if (graph->pos >= graph->size)
4817 symbol = REVGRAPH_BRANCH;
4819 symbol = REVGRAPH_COMMIT;
4825 draw_rev_graph(struct rev_graph *graph)
4828 chtype separator, line;
4830 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
4831 static struct rev_filler fillers[] = {
4837 chtype symbol = get_rev_graph_symbol(graph);
4838 struct rev_filler *filler;
4841 if (opt_line_graphics)
4842 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
4844 filler = &fillers[DEFAULT];
4846 for (i = 0; i < graph->pos; i++) {
4847 append_to_rev_graph(graph, filler->line);
4848 if (graph_parent_is_merge(graph->prev) &&
4849 graph->prev->pos == i)
4850 filler = &fillers[RSHARP];
4852 append_to_rev_graph(graph, filler->separator);
4855 /* Place the symbol for this revision. */
4856 append_to_rev_graph(graph, symbol);
4858 if (graph->prev->size > graph->size)
4859 filler = &fillers[RDIAG];
4861 filler = &fillers[DEFAULT];
4865 for (; i < graph->size; i++) {
4866 append_to_rev_graph(graph, filler->separator);
4867 append_to_rev_graph(graph, filler->line);
4868 if (graph_parent_is_merge(graph->prev) &&
4869 i < graph->prev->pos + graph->parents->size)
4870 filler = &fillers[RSHARP];
4871 if (graph->prev->size > graph->size)
4872 filler = &fillers[LDIAG];
4875 if (graph->prev->size > graph->size) {
4876 append_to_rev_graph(graph, filler->separator);
4877 if (filler->line != ' ')
4878 append_to_rev_graph(graph, filler->line);
4882 /* Prepare the next rev graph */
4884 prepare_rev_graph(struct rev_graph *graph)
4888 /* First, traverse all lines of revisions up to the active one. */
4889 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
4890 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
4893 push_rev_graph(graph->next, graph->rev[graph->pos]);
4896 /* Interleave the new revision parent(s). */
4897 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
4898 push_rev_graph(graph->next, graph->parents->rev[i]);
4900 /* Lastly, put any remaining revisions. */
4901 for (i = graph->pos + 1; i < graph->size; i++)
4902 push_rev_graph(graph->next, graph->rev[i]);
4906 update_rev_graph(struct rev_graph *graph)
4908 /* If this is the finalizing update ... */
4910 prepare_rev_graph(graph);
4912 /* Graph visualization needs a one rev look-ahead,
4913 * so the first update doesn't visualize anything. */
4914 if (!graph->prev->commit)
4917 draw_rev_graph(graph->prev);
4918 done_rev_graph(graph->prev->prev);
4927 main_draw(struct view *view, struct line *line, unsigned int lineno)
4929 struct commit *commit = line->data;
4931 if (!*commit->author)
4934 if (opt_date && draw_date(view, &commit->time))
4938 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
4941 if (opt_rev_graph && commit->graph_size &&
4942 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
4945 if (opt_show_refs && commit->refs) {
4949 enum line_type type;
4951 if (commit->refs[i]->head)
4952 type = LINE_MAIN_HEAD;
4953 else if (commit->refs[i]->ltag)
4954 type = LINE_MAIN_LOCAL_TAG;
4955 else if (commit->refs[i]->tag)
4956 type = LINE_MAIN_TAG;
4957 else if (commit->refs[i]->tracked)
4958 type = LINE_MAIN_TRACKED;
4959 else if (commit->refs[i]->remote)
4960 type = LINE_MAIN_REMOTE;
4962 type = LINE_MAIN_REF;
4964 if (draw_text(view, type, "[", TRUE) ||
4965 draw_text(view, type, commit->refs[i]->name, TRUE) ||
4966 draw_text(view, type, "]", TRUE))
4969 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
4971 } while (commit->refs[i++]->next);
4974 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
4978 /* Reads git log --pretty=raw output and parses it into the commit struct. */
4980 main_read(struct view *view, char *line)
4982 static struct rev_graph *graph = graph_stacks;
4983 enum line_type type;
4984 struct commit *commit;
4987 if (!view->lines && !view->parent)
4988 die("No revisions match the given arguments.");
4989 update_rev_graph(graph);
4993 type = get_line_type(line);
4994 if (type == LINE_COMMIT) {
4995 commit = calloc(1, sizeof(struct commit));
4999 line += STRING_SIZE("commit ");
5001 graph->boundary = 1;
5005 string_copy_rev(commit->id, line);
5006 commit->refs = get_refs(commit->id);
5007 graph->commit = commit;
5008 add_line_data(view, commit, LINE_MAIN_COMMIT);
5010 while ((line = strchr(line, ' '))) {
5012 push_rev_graph(graph->parents, line);
5013 commit->has_parents = TRUE;
5020 commit = view->line[view->lines - 1].data;
5024 if (commit->has_parents)
5026 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5031 /* Parse author lines where the name may be empty:
5032 * author <email@address.tld> 1138474660 +0100
5034 char *ident = line + STRING_SIZE("author ");
5035 char *nameend = strchr(ident, '<');
5036 char *emailend = strchr(ident, '>');
5038 if (!nameend || !emailend)
5041 update_rev_graph(graph);
5042 graph = graph->next;
5044 *nameend = *emailend = 0;
5045 ident = chomp_string(ident);
5047 ident = chomp_string(nameend + 1);
5052 string_ncopy(commit->author, ident, strlen(ident));
5054 /* Parse epoch and timezone */
5055 if (emailend[1] == ' ') {
5056 char *secs = emailend + 2;
5057 char *zone = strchr(secs, ' ');
5058 time_t time = (time_t) atol(secs);
5060 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5064 tz = ('0' - zone[1]) * 60 * 60 * 10;
5065 tz += ('0' - zone[2]) * 60 * 60;
5066 tz += ('0' - zone[3]) * 60;
5067 tz += ('0' - zone[4]) * 60;
5075 gmtime_r(&time, &commit->time);
5080 /* Fill in the commit title if it has not already been set. */
5081 if (commit->title[0])
5084 /* Require titles to start with a non-space character at the
5085 * offset used by git log. */
5086 if (strncmp(line, " ", 4))
5089 /* Well, if the title starts with a whitespace character,
5090 * try to be forgiving. Otherwise we end up with no title. */
5091 while (isspace(*line))
5095 /* FIXME: More graceful handling of titles; append "..." to
5096 * shortened titles, etc. */
5098 string_ncopy(commit->title, line, strlen(line));
5105 main_request(struct view *view, enum request request, struct line *line)
5107 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5109 if (request == REQ_ENTER)
5110 open_view(view, REQ_VIEW_DIFF, flags);
5118 grep_refs(struct ref **refs, regex_t *regex)
5126 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5128 } while (refs[i++]->next);
5134 main_grep(struct view *view, struct line *line)
5136 struct commit *commit = line->data;
5137 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5138 char buf[DATE_COLS + 1];
5141 for (state = S_TITLE; state < S_END; state++) {
5145 case S_TITLE: text = commit->title; break;
5149 text = commit->author;
5154 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5161 if (grep_refs(commit->refs, view->regex) == TRUE)
5168 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5176 main_select(struct view *view, struct line *line)
5178 struct commit *commit = line->data;
5180 string_copy_rev(view->ref, commit->id);
5181 string_copy_rev(ref_commit, view->ref);
5184 static struct view_ops main_ops = {
5196 * Unicode / UTF-8 handling
5198 * NOTE: Much of the following code for dealing with unicode is derived from
5199 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5200 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5203 /* I've (over)annotated a lot of code snippets because I am not entirely
5204 * confident that the approach taken by this small UTF-8 interface is correct.
5208 unicode_width(unsigned long c)
5211 (c <= 0x115f /* Hangul Jamo */
5214 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5216 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5217 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5218 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5219 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5220 || (c >= 0xffe0 && c <= 0xffe6)
5221 || (c >= 0x20000 && c <= 0x2fffd)
5222 || (c >= 0x30000 && c <= 0x3fffd)))
5226 return opt_tab_size;
5231 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5232 * Illegal bytes are set one. */
5233 static const unsigned char utf8_bytes[256] = {
5234 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,
5235 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,
5236 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,
5237 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,
5238 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,
5239 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,
5240 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,
5241 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,
5244 /* Decode UTF-8 multi-byte representation into a unicode character. */
5245 static inline unsigned long
5246 utf8_to_unicode(const char *string, size_t length)
5248 unsigned long unicode;
5252 unicode = string[0];
5255 unicode = (string[0] & 0x1f) << 6;
5256 unicode += (string[1] & 0x3f);
5259 unicode = (string[0] & 0x0f) << 12;
5260 unicode += ((string[1] & 0x3f) << 6);
5261 unicode += (string[2] & 0x3f);
5264 unicode = (string[0] & 0x0f) << 18;
5265 unicode += ((string[1] & 0x3f) << 12);
5266 unicode += ((string[2] & 0x3f) << 6);
5267 unicode += (string[3] & 0x3f);
5270 unicode = (string[0] & 0x0f) << 24;
5271 unicode += ((string[1] & 0x3f) << 18);
5272 unicode += ((string[2] & 0x3f) << 12);
5273 unicode += ((string[3] & 0x3f) << 6);
5274 unicode += (string[4] & 0x3f);
5277 unicode = (string[0] & 0x01) << 30;
5278 unicode += ((string[1] & 0x3f) << 24);
5279 unicode += ((string[2] & 0x3f) << 18);
5280 unicode += ((string[3] & 0x3f) << 12);
5281 unicode += ((string[4] & 0x3f) << 6);
5282 unicode += (string[5] & 0x3f);
5285 die("Invalid unicode length");
5288 /* Invalid characters could return the special 0xfffd value but NUL
5289 * should be just as good. */
5290 return unicode > 0xffff ? 0 : unicode;
5293 /* Calculates how much of string can be shown within the given maximum width
5294 * and sets trimmed parameter to non-zero value if all of string could not be
5295 * shown. If the reserve flag is TRUE, it will reserve at least one
5296 * trailing character, which can be useful when drawing a delimiter.
5298 * Returns the number of bytes to output from string to satisfy max_width. */
5300 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5302 const char *start = string;
5303 const char *end = strchr(string, '\0');
5304 unsigned char last_bytes = 0;
5305 size_t last_ucwidth = 0;
5310 while (string < end) {
5311 int c = *(unsigned char *) string;
5312 unsigned char bytes = utf8_bytes[c];
5314 unsigned long unicode;
5316 if (string + bytes > end)
5319 /* Change representation to figure out whether
5320 * it is a single- or double-width character. */
5322 unicode = utf8_to_unicode(string, bytes);
5323 /* FIXME: Graceful handling of invalid unicode character. */
5327 ucwidth = unicode_width(unicode);
5329 if (*width > max_width) {
5332 if (reserve && *width == max_width) {
5333 string -= last_bytes;
5334 *width -= last_ucwidth;
5341 last_ucwidth = ucwidth;
5344 return string - start;
5352 /* Whether or not the curses interface has been initialized. */
5353 static bool cursed = FALSE;
5355 /* The status window is used for polling keystrokes. */
5356 static WINDOW *status_win;
5358 static bool status_empty = TRUE;
5360 /* Update status and title window. */
5362 report(const char *msg, ...)
5364 struct view *view = display[current_view];
5370 char buf[SIZEOF_STR];
5373 va_start(args, msg);
5374 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5375 buf[sizeof(buf) - 1] = 0;
5376 buf[sizeof(buf) - 2] = '.';
5377 buf[sizeof(buf) - 3] = '.';
5378 buf[sizeof(buf) - 4] = '.';
5384 if (!status_empty || *msg) {
5387 va_start(args, msg);
5389 wmove(status_win, 0, 0);
5391 vwprintw(status_win, msg, args);
5392 status_empty = FALSE;
5394 status_empty = TRUE;
5396 wclrtoeol(status_win);
5397 wrefresh(status_win);
5402 update_view_title(view);
5403 update_display_cursor(view);
5406 /* Controls when nodelay should be in effect when polling user input. */
5408 set_nonblocking_input(bool loading)
5410 static unsigned int loading_views;
5412 if ((loading == FALSE && loading_views-- == 1) ||
5413 (loading == TRUE && loading_views++ == 0))
5414 nodelay(status_win, loading);
5422 /* Initialize the curses library */
5423 if (isatty(STDIN_FILENO)) {
5424 cursed = !!initscr();
5426 /* Leave stdin and stdout alone when acting as a pager. */
5427 FILE *io = fopen("/dev/tty", "r+");
5430 die("Failed to open /dev/tty");
5431 cursed = !!newterm(NULL, io, io);
5435 die("Failed to initialize curses");
5437 nonl(); /* Tell curses not to do NL->CR/NL on output */
5438 cbreak(); /* Take input chars one at a time, no wait for \n */
5439 noecho(); /* Don't echo input */
5440 leaveok(stdscr, TRUE);
5445 getmaxyx(stdscr, y, x);
5446 status_win = newwin(1, 0, y - 1, 0);
5448 die("Failed to create status window");
5450 /* Enable keyboard mapping */
5451 keypad(status_win, TRUE);
5452 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5454 TABSIZE = opt_tab_size;
5455 if (opt_line_graphics) {
5456 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5461 read_prompt(const char *prompt)
5463 enum { READING, STOP, CANCEL } status = READING;
5464 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
5467 while (status == READING) {
5473 foreach_view (view, i)
5478 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5479 wclrtoeol(status_win);
5481 /* Refresh, accept single keystroke of input */
5482 key = wgetch(status_win);
5487 status = pos ? STOP : CANCEL;
5505 if (pos >= sizeof(buf)) {
5506 report("Input string too long");
5511 buf[pos++] = (char) key;
5515 /* Clear the status window */
5516 status_empty = FALSE;
5519 if (status == CANCEL)
5528 * Repository references
5531 static struct ref *refs = NULL;
5532 static size_t refs_alloc = 0;
5533 static size_t refs_size = 0;
5535 /* Id <-> ref store */
5536 static struct ref ***id_refs = NULL;
5537 static size_t id_refs_alloc = 0;
5538 static size_t id_refs_size = 0;
5540 static struct ref **
5543 struct ref ***tmp_id_refs;
5544 struct ref **ref_list = NULL;
5545 size_t ref_list_alloc = 0;
5546 size_t ref_list_size = 0;
5549 for (i = 0; i < id_refs_size; i++)
5550 if (!strcmp(id, id_refs[i][0]->id))
5553 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
5558 id_refs = tmp_id_refs;
5560 for (i = 0; i < refs_size; i++) {
5563 if (strcmp(id, refs[i].id))
5566 tmp = realloc_items(ref_list, &ref_list_alloc,
5567 ref_list_size + 1, sizeof(*ref_list));
5575 if (ref_list_size > 0)
5576 ref_list[ref_list_size - 1]->next = 1;
5577 ref_list[ref_list_size] = &refs[i];
5579 /* XXX: The properties of the commit chains ensures that we can
5580 * safely modify the shared ref. The repo references will
5581 * always be similar for the same id. */
5582 ref_list[ref_list_size]->next = 0;
5587 id_refs[id_refs_size++] = ref_list;
5593 read_ref(char *id, size_t idlen, char *name, size_t namelen)
5598 bool remote = FALSE;
5599 bool tracked = FALSE;
5600 bool check_replace = FALSE;
5603 if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) {
5604 if (!strcmp(name + namelen - 3, "^{}")) {
5607 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
5608 check_replace = TRUE;
5614 namelen -= STRING_SIZE("refs/tags/");
5615 name += STRING_SIZE("refs/tags/");
5617 } else if (!strncmp(name, "refs/remotes/", STRING_SIZE("refs/remotes/"))) {
5619 namelen -= STRING_SIZE("refs/remotes/");
5620 name += STRING_SIZE("refs/remotes/");
5621 tracked = !strcmp(opt_remote, name);
5623 } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5624 namelen -= STRING_SIZE("refs/heads/");
5625 name += STRING_SIZE("refs/heads/");
5626 head = !strncmp(opt_head, name, namelen);
5628 } else if (!strcmp(name, "HEAD")) {
5629 opt_no_head = FALSE;
5633 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
5634 /* it's an annotated tag, replace the previous sha1 with the
5635 * resolved commit id; relies on the fact git-ls-remote lists
5636 * the commit id of an annotated tag right beofre the commit id
5638 refs[refs_size - 1].ltag = ltag;
5639 string_copy_rev(refs[refs_size - 1].id, id);
5643 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
5647 ref = &refs[refs_size++];
5648 ref->name = malloc(namelen + 1);
5652 strncpy(ref->name, name, namelen);
5653 ref->name[namelen] = 0;
5657 ref->remote = remote;
5658 ref->tracked = tracked;
5659 string_copy_rev(ref->id, id);
5667 const char *cmd_env = getenv("TIG_LS_REMOTE");
5668 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
5670 return read_properties(popen(cmd, "r"), "\t", read_ref);
5674 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
5676 if (!strcmp(name, "i18n.commitencoding"))
5677 string_ncopy(opt_encoding, value, valuelen);
5679 if (!strcmp(name, "core.editor"))
5680 string_ncopy(opt_editor, value, valuelen);
5682 /* branch.<head>.remote */
5684 !strncmp(name, "branch.", 7) &&
5685 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5686 !strcmp(name + 7 + strlen(opt_head), ".remote"))
5687 string_ncopy(opt_remote, value, valuelen);
5689 if (*opt_head && *opt_remote &&
5690 !strncmp(name, "branch.", 7) &&
5691 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5692 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
5693 size_t from = strlen(opt_remote);
5695 if (!strncmp(value, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5696 value += STRING_SIZE("refs/heads/");
5697 valuelen -= STRING_SIZE("refs/heads/");
5700 if (!string_format_from(opt_remote, &from, "/%s", value))
5708 load_git_config(void)
5710 return read_properties(popen(GIT_CONFIG " --list", "r"),
5711 "=", read_repo_config_option);
5715 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
5717 if (!opt_git_dir[0]) {
5718 string_ncopy(opt_git_dir, name, namelen);
5720 } else if (opt_is_inside_work_tree == -1) {
5721 /* This can be 3 different values depending on the
5722 * version of git being used. If git-rev-parse does not
5723 * understand --is-inside-work-tree it will simply echo
5724 * the option else either "true" or "false" is printed.
5725 * Default to true for the unknown case. */
5726 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
5728 } else if (opt_cdup[0] == ' ') {
5729 string_ncopy(opt_cdup, name, namelen);
5731 if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5732 namelen -= STRING_SIZE("refs/heads/");
5733 name += STRING_SIZE("refs/heads/");
5734 string_ncopy(opt_head, name, namelen);
5742 load_repo_info(void)
5745 FILE *pipe = popen("(git rev-parse --git-dir --is-inside-work-tree "
5746 " --show-cdup; git symbolic-ref HEAD) 2>/dev/null", "r");
5748 /* XXX: The line outputted by "--show-cdup" can be empty so
5749 * initialize it to something invalid to make it possible to
5750 * detect whether it has been set or not. */
5753 result = read_properties(pipe, "=", read_repo_info);
5754 if (opt_cdup[0] == ' ')
5761 read_properties(FILE *pipe, const char *separators,
5762 int (*read_property)(char *, size_t, char *, size_t))
5764 char buffer[BUFSIZ];
5771 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
5776 name = chomp_string(name);
5777 namelen = strcspn(name, separators);
5779 if (name[namelen]) {
5781 value = chomp_string(name + namelen + 1);
5782 valuelen = strlen(value);
5789 state = read_property(name, namelen, value, valuelen);
5792 if (state != ERR && ferror(pipe))
5805 static void __NORETURN
5808 /* XXX: Restore tty modes and let the OS cleanup the rest! */
5814 static void __NORETURN
5815 die(const char *err, ...)
5821 va_start(args, err);
5822 fputs("tig: ", stderr);
5823 vfprintf(stderr, err, args);
5824 fputs("\n", stderr);
5831 warn(const char *msg, ...)
5835 va_start(args, msg);
5836 fputs("tig warning: ", stderr);
5837 vfprintf(stderr, msg, args);
5838 fputs("\n", stderr);
5843 main(int argc, char *argv[])
5846 enum request request;
5849 signal(SIGINT, quit);
5851 if (setlocale(LC_ALL, "")) {
5852 char *codeset = nl_langinfo(CODESET);
5854 string_ncopy(opt_codeset, codeset, strlen(codeset));
5857 if (load_repo_info() == ERR)
5858 die("Failed to load repo info.");
5860 if (load_options() == ERR)
5861 die("Failed to load user config.");
5863 if (load_git_config() == ERR)
5864 die("Failed to load repo config.");
5866 if (!parse_options(argc, argv))
5869 /* Require a git repository unless when running in pager mode. */
5870 if (!opt_git_dir[0] && opt_request != REQ_VIEW_PAGER)
5871 die("Not a git repository");
5873 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
5876 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
5877 opt_iconv = iconv_open(opt_codeset, opt_encoding);
5878 if (opt_iconv == ICONV_NONE)
5879 die("Failed to initialize character set conversion");
5882 if (*opt_git_dir && load_refs() == ERR)
5883 die("Failed to load refs.");
5885 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
5886 view->cmd_env = getenv(view->cmd_env);
5888 request = opt_request;
5892 while (view_driver(display[current_view], request)) {
5896 foreach_view (view, i)
5899 /* Refresh, accept single keystroke of input */
5900 key = wgetch(status_win);
5902 /* wgetch() with nodelay() enabled returns ERR when there's no
5909 request = get_keybinding(display[current_view]->keymap, key);
5911 /* Some low-level request handling. This keeps access to
5912 * status_win restricted. */
5916 char *cmd = read_prompt(":");
5918 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
5919 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
5920 opt_request = REQ_VIEW_DIFF;
5922 opt_request = REQ_VIEW_PAGER;
5931 case REQ_SEARCH_BACK:
5933 const char *prompt = request == REQ_SEARCH
5935 char *search = read_prompt(prompt);
5938 string_ncopy(opt_search, search, strlen(search));
5943 case REQ_SCREEN_RESIZE:
5947 getmaxyx(stdscr, height, width);
5949 /* Resize the status view and let the view driver take
5950 * care of resizing the displayed views. */
5951 wresize(status_win, 1, width);
5952 mvwin(status_win, height - 1, 0);
5953 wrefresh(status_win);