1 /* Copyright (c) 2006-2007 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
51 #define __NORETURN __attribute__((__noreturn__))
56 static void __NORETURN die(const char *err, ...);
57 static void warn(const char *msg, ...);
58 static void report(const char *msg, ...);
59 static int read_properties(FILE *pipe, const char *separators, int (*read)(char *, size_t, char *, size_t));
60 static void set_nonblocking_input(bool loading);
61 static size_t utf8_length(const char *string, size_t max_width, int *trimmed, bool reserve);
63 #define ABS(x) ((x) >= 0 ? (x) : -(x))
64 #define MIN(x, y) ((x) < (y) ? (x) : (y))
66 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
67 #define STRING_SIZE(x) (sizeof(x) - 1)
69 #define SIZEOF_STR 1024 /* Default string size. */
70 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
71 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL */
75 #define REVGRAPH_INIT 'I'
76 #define REVGRAPH_MERGE 'M'
77 #define REVGRAPH_BRANCH '+'
78 #define REVGRAPH_COMMIT '*'
79 #define REVGRAPH_BOUND '^'
80 #define REVGRAPH_LINE '|'
82 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
84 /* This color name can be used to refer to the default term colors. */
85 #define COLOR_DEFAULT (-1)
87 #define ICONV_NONE ((iconv_t) -1)
89 #define ICONV_CONST /* nothing */
92 /* The format and size of the date column in the main view. */
93 #define DATE_FORMAT "%Y-%m-%d %H:%M"
94 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
96 #define AUTHOR_COLS 20
98 /* The default interval between line numbers. */
99 #define NUMBER_INTERVAL 1
103 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
106 #define GIT_CONFIG "git config"
109 #define TIG_LS_REMOTE \
110 "git ls-remote $(git rev-parse --git-dir) 2>/dev/null"
112 #define TIG_DIFF_CMD \
113 "git show --pretty=fuller --no-color --root --patch-with-stat --find-copies-harder -C %s 2>/dev/null"
115 #define TIG_LOG_CMD \
116 "git log --no-color --cc --stat -n100 %s 2>/dev/null"
118 #define TIG_MAIN_CMD \
119 "git log --no-color --topo-order --parents --boundary --pretty=raw %s 2>/dev/null"
121 #define TIG_TREE_CMD \
124 #define TIG_BLOB_CMD \
125 "git cat-file blob %s"
127 /* XXX: Needs to be defined to the empty string. */
128 #define TIG_HELP_CMD ""
129 #define TIG_PAGER_CMD ""
130 #define TIG_STATUS_CMD ""
131 #define TIG_STAGE_CMD ""
133 /* Some ascii-shorthands fitted into the ncurses namespace. */
135 #define KEY_RETURN '\r'
140 char *name; /* Ref name; tag or head names are shortened. */
141 char id[SIZEOF_REV]; /* Commit SHA1 ID */
142 unsigned int tag:1; /* Is it a tag? */
143 unsigned int ltag:1; /* If so, is the tag local? */
144 unsigned int remote:1; /* Is it a remote ref? */
145 unsigned int next:1; /* For ref lists: are there more refs? */
148 static struct ref **get_refs(char *id);
157 set_from_int_map(struct int_map *map, size_t map_size,
158 int *value, const char *name, int namelen)
163 for (i = 0; i < map_size; i++)
164 if (namelen == map[i].namelen &&
165 !strncasecmp(name, map[i].name, namelen)) {
166 *value = map[i].value;
179 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
181 if (srclen > dstlen - 1)
184 strncpy(dst, src, srclen);
188 /* Shorthands for safely copying into a fixed buffer. */
190 #define string_copy(dst, src) \
191 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
193 #define string_ncopy(dst, src, srclen) \
194 string_ncopy_do(dst, sizeof(dst), src, srclen)
196 #define string_copy_rev(dst, src) \
197 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
199 #define string_add(dst, from, src) \
200 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
203 chomp_string(char *name)
207 while (isspace(*name))
210 namelen = strlen(name) - 1;
211 while (namelen > 0 && isspace(name[namelen]))
218 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
221 size_t pos = bufpos ? *bufpos : 0;
224 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
230 return pos >= bufsize ? FALSE : TRUE;
233 #define string_format(buf, fmt, args...) \
234 string_nformat(buf, sizeof(buf), NULL, fmt, args)
236 #define string_format_from(buf, from, fmt, args...) \
237 string_nformat(buf, sizeof(buf), from, fmt, args)
240 string_enum_compare(const char *str1, const char *str2, int len)
244 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
246 /* Diff-Header == DIFF_HEADER */
247 for (i = 0; i < len; i++) {
248 if (toupper(str1[i]) == toupper(str2[i]))
251 if (string_enum_sep(str1[i]) &&
252 string_enum_sep(str2[i]))
255 return str1[i] - str2[i];
263 * NOTE: The following is a slightly modified copy of the git project's shell
264 * quoting routines found in the quote.c file.
266 * Help to copy the thing properly quoted for the shell safety. any single
267 * quote is replaced with '\'', any exclamation point is replaced with '\!',
268 * and the whole thing is enclosed in a
271 * original sq_quote result
272 * name ==> name ==> 'name'
273 * a b ==> a b ==> 'a b'
274 * a'b ==> a'\''b ==> 'a'\''b'
275 * a!b ==> a'\!'b ==> 'a'\!'b'
279 sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src)
283 #define BUFPUT(x) do { if (bufsize < SIZEOF_STR) buf[bufsize++] = (x); } while (0)
286 while ((c = *src++)) {
287 if (c == '\'' || c == '!') {
298 if (bufsize < SIZEOF_STR)
310 /* XXX: Keep the view request first and in sync with views[]. */ \
311 REQ_GROUP("View switching") \
312 REQ_(VIEW_MAIN, "Show main view"), \
313 REQ_(VIEW_DIFF, "Show diff view"), \
314 REQ_(VIEW_LOG, "Show log view"), \
315 REQ_(VIEW_TREE, "Show tree view"), \
316 REQ_(VIEW_BLOB, "Show blob view"), \
317 REQ_(VIEW_HELP, "Show help page"), \
318 REQ_(VIEW_PAGER, "Show pager view"), \
319 REQ_(VIEW_STATUS, "Show status view"), \
320 REQ_(VIEW_STAGE, "Show stage view"), \
322 REQ_GROUP("View manipulation") \
323 REQ_(ENTER, "Enter current line and scroll"), \
324 REQ_(NEXT, "Move to next"), \
325 REQ_(PREVIOUS, "Move to previous"), \
326 REQ_(VIEW_NEXT, "Move focus to next view"), \
327 REQ_(REFRESH, "Reload and refresh"), \
328 REQ_(VIEW_CLOSE, "Close the current view"), \
329 REQ_(QUIT, "Close all views and quit"), \
331 REQ_GROUP("Cursor navigation") \
332 REQ_(MOVE_UP, "Move cursor one line up"), \
333 REQ_(MOVE_DOWN, "Move cursor one line down"), \
334 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
335 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
336 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
337 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
339 REQ_GROUP("Scrolling") \
340 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
341 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
342 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
343 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
345 REQ_GROUP("Searching") \
346 REQ_(SEARCH, "Search the view"), \
347 REQ_(SEARCH_BACK, "Search backwards in the view"), \
348 REQ_(FIND_NEXT, "Find next search match"), \
349 REQ_(FIND_PREV, "Find previous search match"), \
352 REQ_(PROMPT, "Bring up the prompt"), \
353 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
354 REQ_(SCREEN_RESIZE, "Resize the screen"), \
355 REQ_(SHOW_VERSION, "Show version information"), \
356 REQ_(STOP_LOADING, "Stop all loading views"), \
357 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
358 REQ_(TOGGLE_DATE, "Toggle date display"), \
359 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
360 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
361 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
362 REQ_(STATUS_UPDATE, "Update file status"), \
363 REQ_(STATUS_MERGE, "Merge file using external tool"), \
364 REQ_(TREE_PARENT, "Switch to parent directory in tree view"), \
365 REQ_(EDIT, "Open in editor"), \
366 REQ_(NONE, "Do nothing")
369 /* User action requests. */
371 #define REQ_GROUP(help)
372 #define REQ_(req, help) REQ_##req
374 /* Offset all requests to avoid conflicts with ncurses getch values. */
375 REQ_OFFSET = KEY_MAX + 1,
382 struct request_info {
383 enum request request;
389 static struct request_info req_info[] = {
390 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
391 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
398 get_request(const char *name)
400 int namelen = strlen(name);
403 for (i = 0; i < ARRAY_SIZE(req_info); i++)
404 if (req_info[i].namelen == namelen &&
405 !string_enum_compare(req_info[i].name, name, namelen))
406 return req_info[i].request;
416 static const char usage[] =
417 "tig " TIG_VERSION " (" __DATE__ ")\n"
419 "Usage: tig [options] [revs] [--] [paths]\n"
420 " or: tig show [options] [revs] [--] [paths]\n"
422 " or: tig < [git command output]\n"
425 " -v, --version Show version and exit\n"
426 " -h, --help Show help message and exit\n";
428 /* Option and state variables. */
429 static bool opt_date = TRUE;
430 static bool opt_author = TRUE;
431 static bool opt_line_number = FALSE;
432 static bool opt_rev_graph = FALSE;
433 static bool opt_show_refs = TRUE;
434 static int opt_num_interval = NUMBER_INTERVAL;
435 static int opt_tab_size = TABSIZE;
436 static enum request opt_request = REQ_VIEW_MAIN;
437 static char opt_cmd[SIZEOF_STR] = "";
438 static char opt_path[SIZEOF_STR] = "";
439 static FILE *opt_pipe = NULL;
440 static char opt_encoding[20] = "UTF-8";
441 static bool opt_utf8 = TRUE;
442 static char opt_codeset[20] = "UTF-8";
443 static iconv_t opt_iconv = ICONV_NONE;
444 static char opt_search[SIZEOF_STR] = "";
445 static char opt_cdup[SIZEOF_STR] = "";
446 static char opt_git_dir[SIZEOF_STR] = "";
447 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
448 static char opt_editor[SIZEOF_STR] = "";
456 check_option(char *opt, char short_name, char *name, enum option_type type, ...)
466 int namelen = strlen(name);
470 if (strncmp(opt, name, namelen))
473 if (opt[namelen] == '=')
474 value = opt + namelen + 1;
477 if (!short_name || opt[1] != short_name)
482 va_start(args, type);
483 if (type == OPT_INT) {
484 number = va_arg(args, int *);
486 *number = atoi(value);
493 /* Returns the index of log or diff command or -1 to exit. */
495 parse_options(int argc, char *argv[])
499 char *subcommand = NULL;
502 for (i = 1; i < argc; i++) {
505 if (!strcmp(opt, "log") ||
506 !strcmp(opt, "diff")) {
508 opt_request = opt[0] == 'l'
509 ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
510 warn("`tig %s' has been deprecated", opt);
514 if (!strcmp(opt, "show")) {
516 opt_request = REQ_VIEW_DIFF;
520 if (!strcmp(opt, "status")) {
522 opt_request = REQ_VIEW_STATUS;
526 if (opt[0] && opt[0] != '-')
529 if (!strcmp(opt, "--")) {
534 if (check_option(opt, 'v', "version", OPT_NONE)) {
535 printf("tig version %s\n", TIG_VERSION);
539 if (check_option(opt, 'h', "help", OPT_NONE)) {
544 if (!strcmp(opt, "-S")) {
545 warn("`%s' has been deprecated; use `tig status' instead", opt);
546 opt_request = REQ_VIEW_STATUS;
550 if (!strcmp(opt, "-l")) {
551 opt_request = REQ_VIEW_LOG;
552 } else if (!strcmp(opt, "-d")) {
553 opt_request = REQ_VIEW_DIFF;
554 } else if (check_option(opt, 'n', "line-number", OPT_INT, &opt_num_interval)) {
555 opt_line_number = TRUE;
556 } else if (check_option(opt, 'b', "tab-size", OPT_INT, &opt_tab_size)) {
557 opt_tab_size = MIN(opt_tab_size, TABSIZE);
559 if (altargc >= ARRAY_SIZE(altargv))
560 die("maximum number of arguments exceeded");
561 altargv[altargc++] = opt;
565 warn("`%s' has been deprecated", opt);
568 /* Check that no 'alt' arguments occured before a subcommand. */
569 if (subcommand && i < argc && altargc > 0)
570 die("unknown arguments before `%s'", argv[i]);
572 if (!isatty(STDIN_FILENO)) {
573 opt_request = REQ_VIEW_PAGER;
576 } else if (opt_request == REQ_VIEW_STATUS) {
578 warn("ignoring arguments after `%s'", argv[i]);
580 } else if (i < argc || altargc > 0) {
584 if (opt_request == REQ_VIEW_MAIN)
585 /* XXX: This is vulnerable to the user overriding
586 * options required for the main view parser. */
587 string_copy(opt_cmd, "git log --no-color --pretty=raw --boundary --parents");
589 string_copy(opt_cmd, "git");
590 buf_size = strlen(opt_cmd);
592 while (buf_size < sizeof(opt_cmd) && alti < altargc) {
593 opt_cmd[buf_size++] = ' ';
594 buf_size = sq_quote(opt_cmd, buf_size, altargv[alti++]);
597 while (buf_size < sizeof(opt_cmd) && i < argc) {
598 opt_cmd[buf_size++] = ' ';
599 buf_size = sq_quote(opt_cmd, buf_size, argv[i++]);
602 if (buf_size >= sizeof(opt_cmd))
603 die("command too long");
605 opt_cmd[buf_size] = 0;
613 * Line-oriented content detection.
617 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
618 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
619 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
620 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
621 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
622 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
623 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
624 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
625 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
626 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
627 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
628 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
629 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
630 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
631 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
632 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
633 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
634 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
635 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
636 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
637 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
638 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
639 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
640 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
641 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
642 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
643 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
644 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
645 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
646 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
647 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
648 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
649 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
650 LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
651 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
652 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
653 LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
654 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
655 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
656 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
657 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
658 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
659 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
660 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
661 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
662 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
663 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
664 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
665 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0)
668 #define LINE(type, line, fg, bg, attr) \
675 const char *name; /* Option name. */
676 int namelen; /* Size of option name. */
677 const char *line; /* The start of line to match. */
678 int linelen; /* Size of string to match. */
679 int fg, bg, attr; /* Color and text attributes for the lines. */
682 static struct line_info line_info[] = {
683 #define LINE(type, line, fg, bg, attr) \
684 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
689 static enum line_type
690 get_line_type(char *line)
692 int linelen = strlen(line);
695 for (type = 0; type < ARRAY_SIZE(line_info); type++)
696 /* Case insensitive search matches Signed-off-by lines better. */
697 if (linelen >= line_info[type].linelen &&
698 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
705 get_line_attr(enum line_type type)
707 assert(type < ARRAY_SIZE(line_info));
708 return COLOR_PAIR(type) | line_info[type].attr;
711 static struct line_info *
712 get_line_info(char *name, int namelen)
716 for (type = 0; type < ARRAY_SIZE(line_info); type++)
717 if (namelen == line_info[type].namelen &&
718 !string_enum_compare(line_info[type].name, name, namelen))
719 return &line_info[type];
727 int default_bg = line_info[LINE_DEFAULT].bg;
728 int default_fg = line_info[LINE_DEFAULT].fg;
733 if (assume_default_colors(default_fg, default_bg) == ERR) {
734 default_bg = COLOR_BLACK;
735 default_fg = COLOR_WHITE;
738 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
739 struct line_info *info = &line_info[type];
740 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
741 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
743 init_pair(type, fg, bg);
751 unsigned int selected:1;
753 void *data; /* User data */
763 enum request request;
764 struct keybinding *next;
767 static struct keybinding default_keybindings[] = {
769 { 'm', REQ_VIEW_MAIN },
770 { 'd', REQ_VIEW_DIFF },
771 { 'l', REQ_VIEW_LOG },
772 { 't', REQ_VIEW_TREE },
773 { 'f', REQ_VIEW_BLOB },
774 { 'p', REQ_VIEW_PAGER },
775 { 'h', REQ_VIEW_HELP },
776 { 'S', REQ_VIEW_STATUS },
777 { 'c', REQ_VIEW_STAGE },
779 /* View manipulation */
780 { 'q', REQ_VIEW_CLOSE },
781 { KEY_TAB, REQ_VIEW_NEXT },
782 { KEY_RETURN, REQ_ENTER },
783 { KEY_UP, REQ_PREVIOUS },
784 { KEY_DOWN, REQ_NEXT },
785 { 'R', REQ_REFRESH },
787 /* Cursor navigation */
788 { 'k', REQ_MOVE_UP },
789 { 'j', REQ_MOVE_DOWN },
790 { KEY_HOME, REQ_MOVE_FIRST_LINE },
791 { KEY_END, REQ_MOVE_LAST_LINE },
792 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
793 { ' ', REQ_MOVE_PAGE_DOWN },
794 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
795 { 'b', REQ_MOVE_PAGE_UP },
796 { '-', REQ_MOVE_PAGE_UP },
799 { KEY_IC, REQ_SCROLL_LINE_UP },
800 { KEY_DC, REQ_SCROLL_LINE_DOWN },
801 { 'w', REQ_SCROLL_PAGE_UP },
802 { 's', REQ_SCROLL_PAGE_DOWN },
806 { '?', REQ_SEARCH_BACK },
807 { 'n', REQ_FIND_NEXT },
808 { 'N', REQ_FIND_PREV },
812 { 'z', REQ_STOP_LOADING },
813 { 'v', REQ_SHOW_VERSION },
814 { 'r', REQ_SCREEN_REDRAW },
815 { '.', REQ_TOGGLE_LINENO },
816 { 'D', REQ_TOGGLE_DATE },
817 { 'A', REQ_TOGGLE_AUTHOR },
818 { 'g', REQ_TOGGLE_REV_GRAPH },
819 { 'F', REQ_TOGGLE_REFS },
821 { 'u', REQ_STATUS_UPDATE },
822 { 'M', REQ_STATUS_MERGE },
823 { ',', REQ_TREE_PARENT },
826 /* Using the ncurses SIGWINCH handler. */
827 { KEY_RESIZE, REQ_SCREEN_RESIZE },
830 #define KEYMAP_INFO \
843 #define KEYMAP_(name) KEYMAP_##name
848 static struct int_map keymap_table[] = {
849 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
854 #define set_keymap(map, name) \
855 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
857 static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)];
860 add_keybinding(enum keymap keymap, enum request request, int key)
862 struct keybinding *keybinding;
864 keybinding = calloc(1, sizeof(*keybinding));
866 die("Failed to allocate keybinding");
868 keybinding->alias = key;
869 keybinding->request = request;
870 keybinding->next = keybindings[keymap];
871 keybindings[keymap] = keybinding;
874 /* Looks for a key binding first in the given map, then in the generic map, and
875 * lastly in the default keybindings. */
877 get_keybinding(enum keymap keymap, int key)
879 struct keybinding *kbd;
882 for (kbd = keybindings[keymap]; kbd; kbd = kbd->next)
883 if (kbd->alias == key)
886 for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next)
887 if (kbd->alias == key)
890 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
891 if (default_keybindings[i].alias == key)
892 return default_keybindings[i].request;
894 return (enum request) key;
903 static struct key key_table[] = {
904 { "Enter", KEY_RETURN },
906 { "Backspace", KEY_BACKSPACE },
908 { "Escape", KEY_ESC },
909 { "Left", KEY_LEFT },
910 { "Right", KEY_RIGHT },
912 { "Down", KEY_DOWN },
913 { "Insert", KEY_IC },
914 { "Delete", KEY_DC },
916 { "Home", KEY_HOME },
918 { "PageUp", KEY_PPAGE },
919 { "PageDown", KEY_NPAGE },
929 { "F10", KEY_F(10) },
930 { "F11", KEY_F(11) },
931 { "F12", KEY_F(12) },
935 get_key_value(const char *name)
939 for (i = 0; i < ARRAY_SIZE(key_table); i++)
940 if (!strcasecmp(key_table[i].name, name))
941 return key_table[i].value;
943 if (strlen(name) == 1 && isprint(*name))
950 get_key_name(int key_value)
952 static char key_char[] = "'X'";
956 for (key = 0; key < ARRAY_SIZE(key_table); key++)
957 if (key_table[key].value == key_value)
958 seq = key_table[key].name;
962 isprint(key_value)) {
963 key_char[1] = (char) key_value;
967 return seq ? seq : "'?'";
971 get_key(enum request request)
973 static char buf[BUFSIZ];
980 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
981 struct keybinding *keybinding = &default_keybindings[i];
983 if (keybinding->request != request)
986 if (!string_format_from(buf, &pos, "%s%s", sep,
987 get_key_name(keybinding->alias)))
988 return "Too many keybindings!";
998 char cmd[SIZEOF_STR];
1001 static struct run_request *run_request;
1002 static size_t run_requests;
1005 add_run_request(enum keymap keymap, int key, int argc, char **argv)
1007 struct run_request *tmp;
1008 struct run_request req = { keymap, key };
1011 for (bufpos = 0; argc > 0; argc--, argv++)
1012 if (!string_format_from(req.cmd, &bufpos, "%s ", *argv))
1015 req.cmd[bufpos - 1] = 0;
1017 tmp = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1022 run_request[run_requests++] = req;
1024 return REQ_NONE + run_requests;
1027 static struct run_request *
1028 get_run_request(enum request request)
1030 if (request <= REQ_NONE)
1032 return &run_request[request - REQ_NONE - 1];
1036 add_builtin_run_requests(void)
1043 { KEYMAP_MAIN, 'C', { "git cherry-pick %(commit)" } },
1044 { KEYMAP_GENERIC, 'G', { "git gc" } },
1048 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1051 req = add_run_request(reqs[i].keymap, reqs[i].key, 1, reqs[i].argv);
1052 if (req != REQ_NONE)
1053 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1058 * User config file handling.
1061 static struct int_map color_map[] = {
1062 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1074 #define set_color(color, name) \
1075 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1077 static struct int_map attr_map[] = {
1078 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1085 ATTR_MAP(UNDERLINE),
1088 #define set_attribute(attr, name) \
1089 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1091 static int config_lineno;
1092 static bool config_errors;
1093 static char *config_msg;
1095 /* Wants: object fgcolor bgcolor [attr] */
1097 option_color_command(int argc, char *argv[])
1099 struct line_info *info;
1101 if (argc != 3 && argc != 4) {
1102 config_msg = "Wrong number of arguments given to color command";
1106 info = get_line_info(argv[0], strlen(argv[0]));
1108 config_msg = "Unknown color name";
1112 if (set_color(&info->fg, argv[1]) == ERR ||
1113 set_color(&info->bg, argv[2]) == ERR) {
1114 config_msg = "Unknown color";
1118 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1119 config_msg = "Unknown attribute";
1126 static bool parse_bool(const char *s)
1128 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1129 !strcmp(s, "yes")) ? TRUE : FALSE;
1132 /* Wants: name = value */
1134 option_set_command(int argc, char *argv[])
1137 config_msg = "Wrong number of arguments given to set command";
1141 if (strcmp(argv[1], "=")) {
1142 config_msg = "No value assigned";
1146 if (!strcmp(argv[0], "show-author")) {
1147 opt_author = parse_bool(argv[2]);
1151 if (!strcmp(argv[0], "show-date")) {
1152 opt_date = parse_bool(argv[2]);
1156 if (!strcmp(argv[0], "show-rev-graph")) {
1157 opt_rev_graph = parse_bool(argv[2]);
1161 if (!strcmp(argv[0], "show-refs")) {
1162 opt_show_refs = parse_bool(argv[2]);
1166 if (!strcmp(argv[0], "show-line-numbers")) {
1167 opt_line_number = parse_bool(argv[2]);
1171 if (!strcmp(argv[0], "line-number-interval")) {
1172 opt_num_interval = atoi(argv[2]);
1176 if (!strcmp(argv[0], "tab-size")) {
1177 opt_tab_size = atoi(argv[2]);
1181 if (!strcmp(argv[0], "commit-encoding")) {
1182 char *arg = argv[2];
1183 int delimiter = *arg;
1186 switch (delimiter) {
1189 for (arg++, i = 0; arg[i]; i++)
1190 if (arg[i] == delimiter) {
1195 string_ncopy(opt_encoding, arg, strlen(arg));
1200 config_msg = "Unknown variable name";
1204 /* Wants: mode request key */
1206 option_bind_command(int argc, char *argv[])
1208 enum request request;
1213 config_msg = "Wrong number of arguments given to bind command";
1217 if (set_keymap(&keymap, argv[0]) == ERR) {
1218 config_msg = "Unknown key map";
1222 key = get_key_value(argv[1]);
1224 config_msg = "Unknown key";
1228 request = get_request(argv[2]);
1229 if (request == REQ_NONE) {
1230 const char *obsolete[] = { "cherry-pick" };
1231 size_t namelen = strlen(argv[2]);
1234 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1235 if (namelen == strlen(obsolete[i]) &&
1236 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1237 config_msg = "Obsolete request name";
1242 if (request == REQ_NONE && *argv[2]++ == '!')
1243 request = add_run_request(keymap, key, argc - 2, argv + 2);
1244 if (request == REQ_NONE) {
1245 config_msg = "Unknown request name";
1249 add_keybinding(keymap, request, key);
1255 set_option(char *opt, char *value)
1262 while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) {
1263 argv[argc++] = value;
1266 /* Nothing more to tokenize or last available token. */
1267 if (!*value || argc >= ARRAY_SIZE(argv))
1271 while (isspace(*value))
1275 if (!strcmp(opt, "color"))
1276 return option_color_command(argc, argv);
1278 if (!strcmp(opt, "set"))
1279 return option_set_command(argc, argv);
1281 if (!strcmp(opt, "bind"))
1282 return option_bind_command(argc, argv);
1284 config_msg = "Unknown option command";
1289 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1294 config_msg = "Internal error";
1296 /* Check for comment markers, since read_properties() will
1297 * only ensure opt and value are split at first " \t". */
1298 optlen = strcspn(opt, "#");
1302 if (opt[optlen] != 0) {
1303 config_msg = "No option value";
1307 /* Look for comment endings in the value. */
1308 size_t len = strcspn(value, "#");
1310 if (len < valuelen) {
1312 value[valuelen] = 0;
1315 status = set_option(opt, value);
1318 if (status == ERR) {
1319 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1320 config_lineno, (int) optlen, opt, config_msg);
1321 config_errors = TRUE;
1324 /* Always keep going if errors are encountered. */
1329 load_option_file(const char *path)
1333 /* It's ok that the file doesn't exist. */
1334 file = fopen(path, "r");
1339 config_errors = FALSE;
1341 if (read_properties(file, " \t", read_option) == ERR ||
1342 config_errors == TRUE)
1343 fprintf(stderr, "Errors while loading %s.\n", path);
1349 char *home = getenv("HOME");
1350 char *tigrc_user = getenv("TIGRC_USER");
1351 char *tigrc_system = getenv("TIGRC_SYSTEM");
1352 char buf[SIZEOF_STR];
1354 add_builtin_run_requests();
1356 if (!tigrc_system) {
1357 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1361 load_option_file(tigrc_system);
1364 if (!home || !string_format(buf, "%s/.tigrc", home))
1368 load_option_file(tigrc_user);
1381 /* The display array of active views and the index of the current view. */
1382 static struct view *display[2];
1383 static unsigned int current_view;
1385 /* Reading from the prompt? */
1386 static bool input_mode = FALSE;
1388 #define foreach_displayed_view(view, i) \
1389 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1391 #define displayed_views() (display[1] != NULL ? 2 : 1)
1393 /* Current head and commit ID */
1394 static char ref_blob[SIZEOF_REF] = "";
1395 static char ref_commit[SIZEOF_REF] = "HEAD";
1396 static char ref_head[SIZEOF_REF] = "HEAD";
1399 const char *name; /* View name */
1400 const char *cmd_fmt; /* Default command line format */
1401 const char *cmd_env; /* Command line set via environment */
1402 const char *id; /* Points to either of ref_{head,commit,blob} */
1404 struct view_ops *ops; /* View operations */
1406 enum keymap keymap; /* What keymap does this view have */
1408 char cmd[SIZEOF_STR]; /* Command buffer */
1409 char ref[SIZEOF_REF]; /* Hovered commit reference */
1410 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1412 int height, width; /* The width and height of the main window */
1413 WINDOW *win; /* The main window */
1414 WINDOW *title; /* The title window living below the main window */
1417 unsigned long offset; /* Offset of the window top */
1418 unsigned long lineno; /* Current line number */
1421 char grep[SIZEOF_STR]; /* Search string */
1422 regex_t *regex; /* Pre-compiled regex */
1424 /* If non-NULL, points to the view that opened this view. If this view
1425 * is closed tig will switch back to the parent view. */
1426 struct view *parent;
1429 size_t lines; /* Total number of lines */
1430 struct line *line; /* Line index */
1431 size_t line_alloc; /* Total number of allocated lines */
1432 size_t line_size; /* Total number of used lines */
1433 unsigned int digits; /* Number of digits in the lines member. */
1441 /* What type of content being displayed. Used in the title bar. */
1443 /* Open and reads in all view content. */
1444 bool (*open)(struct view *view);
1445 /* Read one line; updates view->line. */
1446 bool (*read)(struct view *view, char *data);
1447 /* Draw one line; @lineno must be < view->height. */
1448 bool (*draw)(struct view *view, struct line *line, unsigned int lineno, bool selected);
1449 /* Depending on view handle a special requests. */
1450 enum request (*request)(struct view *view, enum request request, struct line *line);
1451 /* Search for regex in a line. */
1452 bool (*grep)(struct view *view, struct line *line);
1454 void (*select)(struct view *view, struct line *line);
1457 static struct view_ops pager_ops;
1458 static struct view_ops main_ops;
1459 static struct view_ops tree_ops;
1460 static struct view_ops blob_ops;
1461 static struct view_ops help_ops;
1462 static struct view_ops status_ops;
1463 static struct view_ops stage_ops;
1465 #define VIEW_STR(name, cmd, env, ref, ops, map) \
1466 { name, cmd, #env, ref, ops, map}
1468 #define VIEW_(id, name, ops, ref) \
1469 VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id)
1472 static struct view views[] = {
1473 VIEW_(MAIN, "main", &main_ops, ref_head),
1474 VIEW_(DIFF, "diff", &pager_ops, ref_commit),
1475 VIEW_(LOG, "log", &pager_ops, ref_head),
1476 VIEW_(TREE, "tree", &tree_ops, ref_commit),
1477 VIEW_(BLOB, "blob", &blob_ops, ref_blob),
1478 VIEW_(HELP, "help", &help_ops, ""),
1479 VIEW_(PAGER, "pager", &pager_ops, "stdin"),
1480 VIEW_(STATUS, "status", &status_ops, ""),
1481 VIEW_(STAGE, "stage", &stage_ops, ""),
1484 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1486 #define foreach_view(view, i) \
1487 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1489 #define view_is_displayed(view) \
1490 (view == display[0] || view == display[1])
1493 draw_text(struct view *view, const char *string, int max_len, int col,
1494 bool use_tilde, int tilde_attr)
1497 int trimmed = FALSE;
1503 len = utf8_length(string, max_len, &trimmed, use_tilde);
1505 len = strlen(string);
1506 if (len > max_len) {
1515 waddnstr(view->win, string, len);
1516 if (trimmed && use_tilde) {
1517 if (tilde_attr != -1)
1518 wattrset(view->win, tilde_attr);
1519 waddch(view->win, '~');
1527 draw_view_line(struct view *view, unsigned int lineno)
1530 bool selected = (view->offset + lineno == view->lineno);
1533 assert(view_is_displayed(view));
1535 if (view->offset + lineno >= view->lines)
1538 line = &view->line[view->offset + lineno];
1541 line->selected = TRUE;
1542 view->ops->select(view, line);
1543 } else if (line->selected) {
1544 line->selected = FALSE;
1545 wmove(view->win, lineno, 0);
1546 wclrtoeol(view->win);
1549 scrollok(view->win, FALSE);
1550 draw_ok = view->ops->draw(view, line, lineno, selected);
1551 scrollok(view->win, TRUE);
1557 redraw_view_from(struct view *view, int lineno)
1559 assert(0 <= lineno && lineno < view->height);
1561 for (; lineno < view->height; lineno++) {
1562 if (!draw_view_line(view, lineno))
1566 redrawwin(view->win);
1568 wnoutrefresh(view->win);
1570 wrefresh(view->win);
1574 redraw_view(struct view *view)
1577 redraw_view_from(view, 0);
1582 update_view_title(struct view *view)
1584 char buf[SIZEOF_STR];
1585 char state[SIZEOF_STR];
1586 size_t bufpos = 0, statelen = 0;
1588 assert(view_is_displayed(view));
1590 if (view != VIEW(REQ_VIEW_STATUS) && (view->lines || view->pipe)) {
1591 unsigned int view_lines = view->offset + view->height;
1592 unsigned int lines = view->lines
1593 ? MIN(view_lines, view->lines) * 100 / view->lines
1596 string_format_from(state, &statelen, "- %s %d of %d (%d%%)",
1603 time_t secs = time(NULL) - view->start_time;
1605 /* Three git seconds are a long time ... */
1607 string_format_from(state, &statelen, " %lds", secs);
1611 string_format_from(buf, &bufpos, "[%s]", view->name);
1612 if (*view->ref && bufpos < view->width) {
1613 size_t refsize = strlen(view->ref);
1614 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
1616 if (minsize < view->width)
1617 refsize = view->width - minsize + 7;
1618 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
1621 if (statelen && bufpos < view->width) {
1622 string_format_from(buf, &bufpos, " %s", state);
1625 if (view == display[current_view])
1626 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
1628 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
1630 mvwaddnstr(view->title, 0, 0, buf, bufpos);
1631 wclrtoeol(view->title);
1632 wmove(view->title, 0, view->width - 1);
1635 wnoutrefresh(view->title);
1637 wrefresh(view->title);
1641 resize_display(void)
1644 struct view *base = display[0];
1645 struct view *view = display[1] ? display[1] : display[0];
1647 /* Setup window dimensions */
1649 getmaxyx(stdscr, base->height, base->width);
1651 /* Make room for the status window. */
1655 /* Horizontal split. */
1656 view->width = base->width;
1657 view->height = SCALE_SPLIT_VIEW(base->height);
1658 base->height -= view->height;
1660 /* Make room for the title bar. */
1664 /* Make room for the title bar. */
1669 foreach_displayed_view (view, i) {
1671 view->win = newwin(view->height, 0, offset, 0);
1673 die("Failed to create %s view", view->name);
1675 scrollok(view->win, TRUE);
1677 view->title = newwin(1, 0, offset + view->height, 0);
1679 die("Failed to create title window");
1682 wresize(view->win, view->height, view->width);
1683 mvwin(view->win, offset, 0);
1684 mvwin(view->title, offset + view->height, 0);
1687 offset += view->height + 1;
1692 redraw_display(void)
1697 foreach_displayed_view (view, i) {
1699 update_view_title(view);
1704 update_display_cursor(struct view *view)
1706 /* Move the cursor to the right-most column of the cursor line.
1708 * XXX: This could turn out to be a bit expensive, but it ensures that
1709 * the cursor does not jump around. */
1711 wmove(view->win, view->lineno - view->offset, view->width - 1);
1712 wrefresh(view->win);
1720 /* Scrolling backend */
1722 do_scroll_view(struct view *view, int lines)
1724 bool redraw_current_line = FALSE;
1726 /* The rendering expects the new offset. */
1727 view->offset += lines;
1729 assert(0 <= view->offset && view->offset < view->lines);
1732 /* Move current line into the view. */
1733 if (view->lineno < view->offset) {
1734 view->lineno = view->offset;
1735 redraw_current_line = TRUE;
1736 } else if (view->lineno >= view->offset + view->height) {
1737 view->lineno = view->offset + view->height - 1;
1738 redraw_current_line = TRUE;
1741 assert(view->offset <= view->lineno && view->lineno < view->lines);
1743 /* Redraw the whole screen if scrolling is pointless. */
1744 if (view->height < ABS(lines)) {
1748 int line = lines > 0 ? view->height - lines : 0;
1749 int end = line + ABS(lines);
1751 wscrl(view->win, lines);
1753 for (; line < end; line++) {
1754 if (!draw_view_line(view, line))
1758 if (redraw_current_line)
1759 draw_view_line(view, view->lineno - view->offset);
1762 redrawwin(view->win);
1763 wrefresh(view->win);
1767 /* Scroll frontend */
1769 scroll_view(struct view *view, enum request request)
1773 assert(view_is_displayed(view));
1776 case REQ_SCROLL_PAGE_DOWN:
1777 lines = view->height;
1778 case REQ_SCROLL_LINE_DOWN:
1779 if (view->offset + lines > view->lines)
1780 lines = view->lines - view->offset;
1782 if (lines == 0 || view->offset + view->height >= view->lines) {
1783 report("Cannot scroll beyond the last line");
1788 case REQ_SCROLL_PAGE_UP:
1789 lines = view->height;
1790 case REQ_SCROLL_LINE_UP:
1791 if (lines > view->offset)
1792 lines = view->offset;
1795 report("Cannot scroll beyond the first line");
1803 die("request %d not handled in switch", request);
1806 do_scroll_view(view, lines);
1811 move_view(struct view *view, enum request request)
1813 int scroll_steps = 0;
1817 case REQ_MOVE_FIRST_LINE:
1818 steps = -view->lineno;
1821 case REQ_MOVE_LAST_LINE:
1822 steps = view->lines - view->lineno - 1;
1825 case REQ_MOVE_PAGE_UP:
1826 steps = view->height > view->lineno
1827 ? -view->lineno : -view->height;
1830 case REQ_MOVE_PAGE_DOWN:
1831 steps = view->lineno + view->height >= view->lines
1832 ? view->lines - view->lineno - 1 : view->height;
1844 die("request %d not handled in switch", request);
1847 if (steps <= 0 && view->lineno == 0) {
1848 report("Cannot move beyond the first line");
1851 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
1852 report("Cannot move beyond the last line");
1856 /* Move the current line */
1857 view->lineno += steps;
1858 assert(0 <= view->lineno && view->lineno < view->lines);
1860 /* Check whether the view needs to be scrolled */
1861 if (view->lineno < view->offset ||
1862 view->lineno >= view->offset + view->height) {
1863 scroll_steps = steps;
1864 if (steps < 0 && -steps > view->offset) {
1865 scroll_steps = -view->offset;
1867 } else if (steps > 0) {
1868 if (view->lineno == view->lines - 1 &&
1869 view->lines > view->height) {
1870 scroll_steps = view->lines - view->offset - 1;
1871 if (scroll_steps >= view->height)
1872 scroll_steps -= view->height - 1;
1877 if (!view_is_displayed(view)) {
1878 view->offset += scroll_steps;
1879 assert(0 <= view->offset && view->offset < view->lines);
1880 view->ops->select(view, &view->line[view->lineno]);
1884 /* Repaint the old "current" line if we be scrolling */
1885 if (ABS(steps) < view->height)
1886 draw_view_line(view, view->lineno - steps - view->offset);
1889 do_scroll_view(view, scroll_steps);
1893 /* Draw the current line */
1894 draw_view_line(view, view->lineno - view->offset);
1896 redrawwin(view->win);
1897 wrefresh(view->win);
1906 static void search_view(struct view *view, enum request request);
1909 find_next_line(struct view *view, unsigned long lineno, struct line *line)
1911 assert(view_is_displayed(view));
1913 if (!view->ops->grep(view, line))
1916 if (lineno - view->offset >= view->height) {
1917 view->offset = lineno;
1918 view->lineno = lineno;
1922 unsigned long old_lineno = view->lineno - view->offset;
1924 view->lineno = lineno;
1925 draw_view_line(view, old_lineno);
1927 draw_view_line(view, view->lineno - view->offset);
1928 redrawwin(view->win);
1929 wrefresh(view->win);
1932 report("Line %ld matches '%s'", lineno + 1, view->grep);
1937 find_next(struct view *view, enum request request)
1939 unsigned long lineno = view->lineno;
1944 report("No previous search");
1946 search_view(view, request);
1956 case REQ_SEARCH_BACK:
1965 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
1966 lineno += direction;
1968 /* Note, lineno is unsigned long so will wrap around in which case it
1969 * will become bigger than view->lines. */
1970 for (; lineno < view->lines; lineno += direction) {
1971 struct line *line = &view->line[lineno];
1973 if (find_next_line(view, lineno, line))
1977 report("No match found for '%s'", view->grep);
1981 search_view(struct view *view, enum request request)
1986 regfree(view->regex);
1989 view->regex = calloc(1, sizeof(*view->regex));
1994 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
1995 if (regex_err != 0) {
1996 char buf[SIZEOF_STR] = "unknown error";
1998 regerror(regex_err, view->regex, buf, sizeof(buf));
1999 report("Search failed: %s", buf);
2003 string_copy(view->grep, opt_search);
2005 find_next(view, request);
2009 * Incremental updating
2013 end_update(struct view *view)
2017 set_nonblocking_input(FALSE);
2018 if (view->pipe == stdin)
2026 begin_update(struct view *view)
2032 string_copy(view->cmd, opt_cmd);
2034 /* When running random commands, initially show the
2035 * command in the title. However, it maybe later be
2036 * overwritten if a commit line is selected. */
2037 if (view == VIEW(REQ_VIEW_PAGER))
2038 string_copy(view->ref, view->cmd);
2042 } else if (view == VIEW(REQ_VIEW_TREE)) {
2043 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2044 char path[SIZEOF_STR];
2046 if (strcmp(view->vid, view->id))
2047 opt_path[0] = path[0] = 0;
2048 else if (sq_quote(path, 0, opt_path) >= sizeof(path))
2051 if (!string_format(view->cmd, format, view->id, path))
2055 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2056 const char *id = view->id;
2058 if (!string_format(view->cmd, format, id, id, id, id, id))
2061 /* Put the current ref_* value to the view title ref
2062 * member. This is needed by the blob view. Most other
2063 * views sets it automatically after loading because the
2064 * first line is a commit line. */
2065 string_copy_rev(view->ref, view->id);
2068 /* Special case for the pager view. */
2070 view->pipe = opt_pipe;
2073 view->pipe = popen(view->cmd, "r");
2079 set_nonblocking_input(TRUE);
2084 string_copy_rev(view->vid, view->id);
2089 for (i = 0; i < view->lines; i++)
2090 if (view->line[i].data)
2091 free(view->line[i].data);
2097 view->start_time = time(NULL);
2102 #define ITEM_CHUNK_SIZE 256
2104 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2106 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2107 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2109 if (mem == NULL || num_chunks != num_chunks_new) {
2110 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2111 mem = realloc(mem, *size * item_size);
2117 static struct line *
2118 realloc_lines(struct view *view, size_t line_size)
2120 size_t alloc = view->line_alloc;
2121 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2122 sizeof(*view->line));
2128 view->line_alloc = alloc;
2129 view->line_size = line_size;
2134 update_view(struct view *view)
2136 char in_buffer[BUFSIZ];
2137 char out_buffer[BUFSIZ * 2];
2139 /* The number of lines to read. If too low it will cause too much
2140 * redrawing (and possible flickering), if too high responsiveness
2142 unsigned long lines = view->height;
2143 int redraw_from = -1;
2148 /* Only redraw if lines are visible. */
2149 if (view->offset + view->height >= view->lines)
2150 redraw_from = view->lines - view->offset;
2152 /* FIXME: This is probably not perfect for backgrounded views. */
2153 if (!realloc_lines(view, view->lines + lines))
2156 while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) {
2157 size_t linelen = strlen(line);
2160 line[linelen - 1] = 0;
2162 if (opt_iconv != ICONV_NONE) {
2163 ICONV_CONST char *inbuf = line;
2164 size_t inlen = linelen;
2166 char *outbuf = out_buffer;
2167 size_t outlen = sizeof(out_buffer);
2171 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2172 if (ret != (size_t) -1) {
2174 linelen = strlen(out_buffer);
2178 if (!view->ops->read(view, line))
2188 lines = view->lines;
2189 for (digits = 0; lines; digits++)
2192 /* Keep the displayed view in sync with line number scaling. */
2193 if (digits != view->digits) {
2194 view->digits = digits;
2199 if (!view_is_displayed(view))
2202 if (view == VIEW(REQ_VIEW_TREE)) {
2203 /* Clear the view and redraw everything since the tree sorting
2204 * might have rearranged things. */
2207 } else if (redraw_from >= 0) {
2208 /* If this is an incremental update, redraw the previous line
2209 * since for commits some members could have changed when
2210 * loading the main view. */
2211 if (redraw_from > 0)
2214 /* Since revision graph visualization requires knowledge
2215 * about the parent commit, it causes a further one-off
2216 * needed to be redrawn for incremental updates. */
2217 if (redraw_from > 0 && opt_rev_graph)
2220 /* Incrementally draw avoids flickering. */
2221 redraw_view_from(view, redraw_from);
2224 /* Update the title _after_ the redraw so that if the redraw picks up a
2225 * commit reference in view->ref it'll be available here. */
2226 update_view_title(view);
2229 if (ferror(view->pipe)) {
2230 report("Failed to read: %s", strerror(errno));
2233 } else if (feof(view->pipe)) {
2241 report("Allocation failure");
2244 view->ops->read(view, NULL);
2249 static struct line *
2250 add_line_data(struct view *view, void *data, enum line_type type)
2252 struct line *line = &view->line[view->lines++];
2254 memset(line, 0, sizeof(*line));
2261 static struct line *
2262 add_line_text(struct view *view, char *data, enum line_type type)
2265 data = strdup(data);
2267 return data ? add_line_data(view, data, type) : NULL;
2276 OPEN_DEFAULT = 0, /* Use default view switching. */
2277 OPEN_SPLIT = 1, /* Split current view. */
2278 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2279 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2283 open_view(struct view *prev, enum request request, enum open_flags flags)
2285 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2286 bool split = !!(flags & OPEN_SPLIT);
2287 bool reload = !!(flags & OPEN_RELOAD);
2288 struct view *view = VIEW(request);
2289 int nviews = displayed_views();
2290 struct view *base_view = display[0];
2292 if (view == prev && nviews == 1 && !reload) {
2293 report("Already in %s view", view->name);
2297 if (view->ops->open) {
2298 if (!view->ops->open(view)) {
2299 report("Failed to load %s view", view->name);
2303 } else if ((reload || strcmp(view->vid, view->id)) &&
2304 !begin_update(view)) {
2305 report("Failed to load %s view", view->name);
2314 /* Maximize the current view. */
2315 memset(display, 0, sizeof(display));
2317 display[current_view] = view;
2320 /* Resize the view when switching between split- and full-screen,
2321 * or when switching between two different full-screen views. */
2322 if (nviews != displayed_views() ||
2323 (nviews == 1 && base_view != display[0]))
2326 if (split && prev->lineno - prev->offset >= prev->height) {
2327 /* Take the title line into account. */
2328 int lines = prev->lineno - prev->offset - prev->height + 1;
2330 /* Scroll the view that was split if the current line is
2331 * outside the new limited view. */
2332 do_scroll_view(prev, lines);
2335 if (prev && view != prev) {
2336 if (split && !backgrounded) {
2337 /* "Blur" the previous view. */
2338 update_view_title(prev);
2341 view->parent = prev;
2344 if (view->pipe && view->lines == 0) {
2345 /* Clear the old view and let the incremental updating refill
2354 /* If the view is backgrounded the above calls to report()
2355 * won't redraw the view title. */
2357 update_view_title(view);
2361 open_external_viewer(const char *cmd)
2363 def_prog_mode(); /* save current tty modes */
2364 endwin(); /* restore original tty modes */
2366 fprintf(stderr, "Press Enter to continue");
2373 open_mergetool(const char *file)
2375 char cmd[SIZEOF_STR];
2376 char file_sq[SIZEOF_STR];
2378 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2379 string_format(cmd, "git mergetool %s", file_sq)) {
2380 open_external_viewer(cmd);
2385 open_editor(bool from_root, const char *file)
2387 char cmd[SIZEOF_STR];
2388 char file_sq[SIZEOF_STR];
2390 char *prefix = from_root ? opt_cdup : "";
2392 editor = getenv("GIT_EDITOR");
2393 if (!editor && *opt_editor)
2394 editor = opt_editor;
2396 editor = getenv("VISUAL");
2398 editor = getenv("EDITOR");
2402 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2403 string_format(cmd, "%s %s%s", editor, prefix, file_sq)) {
2404 open_external_viewer(cmd);
2409 open_run_request(enum request request)
2411 struct run_request *req = get_run_request(request);
2412 char buf[SIZEOF_STR * 2];
2417 report("Unknown run request");
2425 char *next = strstr(cmd, "%(");
2426 int len = next - cmd;
2433 } else if (!strncmp(next, "%(head)", 7)) {
2436 } else if (!strncmp(next, "%(commit)", 9)) {
2439 } else if (!strncmp(next, "%(blob)", 7)) {
2443 report("Unknown replacement in run request: `%s`", req->cmd);
2447 if (!string_format_from(buf, &bufpos, "%.*s%s", len, cmd, value))
2451 next = strchr(next, ')') + 1;
2455 open_external_viewer(buf);
2459 * User request switch noodle
2463 view_driver(struct view *view, enum request request)
2467 if (request == REQ_NONE) {
2472 if (request > REQ_NONE) {
2473 open_run_request(request);
2477 if (view && view->lines) {
2478 request = view->ops->request(view, request, &view->line[view->lineno]);
2479 if (request == REQ_NONE)
2486 case REQ_MOVE_PAGE_UP:
2487 case REQ_MOVE_PAGE_DOWN:
2488 case REQ_MOVE_FIRST_LINE:
2489 case REQ_MOVE_LAST_LINE:
2490 move_view(view, request);
2493 case REQ_SCROLL_LINE_DOWN:
2494 case REQ_SCROLL_LINE_UP:
2495 case REQ_SCROLL_PAGE_DOWN:
2496 case REQ_SCROLL_PAGE_UP:
2497 scroll_view(view, request);
2502 report("No file chosen, press %s to open tree view",
2503 get_key(REQ_VIEW_TREE));
2506 open_view(view, request, OPEN_DEFAULT);
2509 case REQ_VIEW_PAGER:
2510 if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2511 report("No pager content, press %s to run command from prompt",
2512 get_key(REQ_PROMPT));
2515 open_view(view, request, OPEN_DEFAULT);
2518 case REQ_VIEW_STAGE:
2519 if (!VIEW(REQ_VIEW_STAGE)->lines) {
2520 report("No stage content, press %s to open the status view and choose file",
2521 get_key(REQ_VIEW_STATUS));
2524 open_view(view, request, OPEN_DEFAULT);
2527 case REQ_VIEW_STATUS:
2528 if (opt_is_inside_work_tree == FALSE) {
2529 report("The status view requires a working tree");
2532 open_view(view, request, OPEN_DEFAULT);
2540 open_view(view, request, OPEN_DEFAULT);
2545 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2547 if ((view == VIEW(REQ_VIEW_DIFF) &&
2548 view->parent == VIEW(REQ_VIEW_MAIN)) ||
2549 (view == VIEW(REQ_VIEW_STAGE) &&
2550 view->parent == VIEW(REQ_VIEW_STATUS)) ||
2551 (view == VIEW(REQ_VIEW_BLOB) &&
2552 view->parent == VIEW(REQ_VIEW_TREE))) {
2555 view = view->parent;
2556 line = view->lineno;
2557 move_view(view, request);
2558 if (view_is_displayed(view))
2559 update_view_title(view);
2560 if (line != view->lineno)
2561 view->ops->request(view, REQ_ENTER,
2562 &view->line[view->lineno]);
2565 move_view(view, request);
2571 int nviews = displayed_views();
2572 int next_view = (current_view + 1) % nviews;
2574 if (next_view == current_view) {
2575 report("Only one view is displayed");
2579 current_view = next_view;
2580 /* Blur out the title of the previous view. */
2581 update_view_title(view);
2586 report("Refreshing is not yet supported for the %s view", view->name);
2589 case REQ_TOGGLE_LINENO:
2590 opt_line_number = !opt_line_number;
2594 case REQ_TOGGLE_DATE:
2595 opt_date = !opt_date;
2599 case REQ_TOGGLE_AUTHOR:
2600 opt_author = !opt_author;
2604 case REQ_TOGGLE_REV_GRAPH:
2605 opt_rev_graph = !opt_rev_graph;
2609 case REQ_TOGGLE_REFS:
2610 opt_show_refs = !opt_show_refs;
2615 /* Always reload^Wrerun commands from the prompt. */
2616 open_view(view, opt_request, OPEN_RELOAD);
2620 case REQ_SEARCH_BACK:
2621 search_view(view, request);
2626 find_next(view, request);
2629 case REQ_STOP_LOADING:
2630 for (i = 0; i < ARRAY_SIZE(views); i++) {
2633 report("Stopped loading the %s view", view->name),
2638 case REQ_SHOW_VERSION:
2639 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
2642 case REQ_SCREEN_RESIZE:
2645 case REQ_SCREEN_REDRAW:
2650 report("Nothing to edit");
2655 report("Nothing to enter");
2659 case REQ_VIEW_CLOSE:
2660 /* XXX: Mark closed views by letting view->parent point to the
2661 * view itself. Parents to closed view should never be
2664 view->parent->parent != view->parent) {
2665 memset(display, 0, sizeof(display));
2667 display[current_view] = view->parent;
2668 view->parent = view;
2678 /* An unknown key will show most commonly used commands. */
2679 report("Unknown key, press 'h' for help");
2692 pager_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
2694 char *text = line->data;
2695 enum line_type type = line->type;
2698 wmove(view->win, lineno, 0);
2702 wchgat(view->win, -1, 0, type, NULL);
2705 attr = get_line_attr(type);
2706 wattrset(view->win, attr);
2708 if (opt_line_number || opt_tab_size < TABSIZE) {
2709 static char spaces[] = " ";
2710 int col_offset = 0, col = 0;
2712 if (opt_line_number) {
2713 unsigned long real_lineno = view->offset + lineno + 1;
2715 if (real_lineno == 1 ||
2716 (real_lineno % opt_num_interval) == 0) {
2717 wprintw(view->win, "%.*d", view->digits, real_lineno);
2720 waddnstr(view->win, spaces,
2721 MIN(view->digits, STRING_SIZE(spaces)));
2723 waddstr(view->win, ": ");
2724 col_offset = view->digits + 2;
2727 while (text && col_offset + col < view->width) {
2728 int cols_max = view->width - col_offset - col;
2732 if (*text == '\t') {
2734 assert(sizeof(spaces) > TABSIZE);
2736 cols = opt_tab_size - (col % opt_tab_size);
2739 text = strchr(text, '\t');
2740 cols = line ? text - pos : strlen(pos);
2743 waddnstr(view->win, pos, MIN(cols, cols_max));
2748 int tilde_attr = get_line_attr(LINE_MAIN_DELIM);
2750 draw_text(view, text, view->width, 0, TRUE, tilde_attr);
2757 add_describe_ref(char *buf, size_t *bufpos, char *commit_id, const char *sep)
2759 char refbuf[SIZEOF_STR];
2763 if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id))
2766 pipe = popen(refbuf, "r");
2770 if ((ref = fgets(refbuf, sizeof(refbuf), pipe)))
2771 ref = chomp_string(ref);
2777 /* This is the only fatal call, since it can "corrupt" the buffer. */
2778 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
2785 add_pager_refs(struct view *view, struct line *line)
2787 char buf[SIZEOF_STR];
2788 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
2790 size_t bufpos = 0, refpos = 0;
2791 const char *sep = "Refs: ";
2792 bool is_tag = FALSE;
2794 assert(line->type == LINE_COMMIT);
2796 refs = get_refs(commit_id);
2798 if (view == VIEW(REQ_VIEW_DIFF))
2799 goto try_add_describe_ref;
2804 struct ref *ref = refs[refpos];
2805 char *fmt = ref->tag ? "%s[%s]" :
2806 ref->remote ? "%s<%s>" : "%s%s";
2808 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
2813 } while (refs[refpos++]->next);
2815 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
2816 try_add_describe_ref:
2817 /* Add <tag>-g<commit_id> "fake" reference. */
2818 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
2825 if (!realloc_lines(view, view->line_size + 1))
2828 add_line_text(view, buf, LINE_PP_REFS);
2832 pager_read(struct view *view, char *data)
2839 line = add_line_text(view, data, get_line_type(data));
2843 if (line->type == LINE_COMMIT &&
2844 (view == VIEW(REQ_VIEW_DIFF) ||
2845 view == VIEW(REQ_VIEW_LOG)))
2846 add_pager_refs(view, line);
2852 pager_request(struct view *view, enum request request, struct line *line)
2856 if (request != REQ_ENTER)
2859 if (line->type == LINE_COMMIT &&
2860 (view == VIEW(REQ_VIEW_LOG) ||
2861 view == VIEW(REQ_VIEW_PAGER))) {
2862 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
2866 /* Always scroll the view even if it was split. That way
2867 * you can use Enter to scroll through the log view and
2868 * split open each commit diff. */
2869 scroll_view(view, REQ_SCROLL_LINE_DOWN);
2871 /* FIXME: A minor workaround. Scrolling the view will call report("")
2872 * but if we are scrolling a non-current view this won't properly
2873 * update the view title. */
2875 update_view_title(view);
2881 pager_grep(struct view *view, struct line *line)
2884 char *text = line->data;
2889 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
2896 pager_select(struct view *view, struct line *line)
2898 if (line->type == LINE_COMMIT) {
2899 char *text = (char *)line->data + STRING_SIZE("commit ");
2901 if (view != VIEW(REQ_VIEW_PAGER))
2902 string_copy_rev(view->ref, text);
2903 string_copy_rev(ref_commit, text);
2907 static struct view_ops pager_ops = {
2923 help_open(struct view *view)
2926 int lines = ARRAY_SIZE(req_info) + 2;
2929 if (view->lines > 0)
2932 for (i = 0; i < ARRAY_SIZE(req_info); i++)
2933 if (!req_info[i].request)
2936 lines += run_requests + 1;
2938 view->line = calloc(lines, sizeof(*view->line));
2942 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
2944 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
2947 if (req_info[i].request == REQ_NONE)
2950 if (!req_info[i].request) {
2951 add_line_text(view, "", LINE_DEFAULT);
2952 add_line_text(view, req_info[i].help, LINE_DEFAULT);
2956 key = get_key(req_info[i].request);
2958 key = "(no key defined)";
2960 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
2963 add_line_text(view, buf, LINE_DEFAULT);
2967 add_line_text(view, "", LINE_DEFAULT);
2968 add_line_text(view, "External commands:", LINE_DEFAULT);
2971 for (i = 0; i < run_requests; i++) {
2972 struct run_request *req = get_run_request(REQ_NONE + i + 1);
2978 key = get_key_name(req->key);
2980 key = "(no key defined)";
2982 if (!string_format(buf, " %-10s %-14s `%s`",
2983 keymap_table[req->keymap].name,
2987 add_line_text(view, buf, LINE_DEFAULT);
2993 static struct view_ops help_ops = {
3008 struct tree_stack_entry {
3009 struct tree_stack_entry *prev; /* Entry below this in the stack */
3010 unsigned long lineno; /* Line number to restore */
3011 char *name; /* Position of name in opt_path */
3014 /* The top of the path stack. */
3015 static struct tree_stack_entry *tree_stack = NULL;
3016 unsigned long tree_lineno = 0;
3019 pop_tree_stack_entry(void)
3021 struct tree_stack_entry *entry = tree_stack;
3023 tree_lineno = entry->lineno;
3025 tree_stack = entry->prev;
3030 push_tree_stack_entry(char *name, unsigned long lineno)
3032 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3033 size_t pathlen = strlen(opt_path);
3038 entry->prev = tree_stack;
3039 entry->name = opt_path + pathlen;
3042 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3043 pop_tree_stack_entry();
3047 /* Move the current line to the first tree entry. */
3049 entry->lineno = lineno;
3052 /* Parse output from git-ls-tree(1):
3054 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3055 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3056 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3057 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3060 #define SIZEOF_TREE_ATTR \
3061 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3063 #define TREE_UP_FORMAT "040000 tree %s\t.."
3066 tree_compare_entry(enum line_type type1, char *name1,
3067 enum line_type type2, char *name2)
3069 if (type1 != type2) {
3070 if (type1 == LINE_TREE_DIR)
3075 return strcmp(name1, name2);
3079 tree_read(struct view *view, char *text)
3081 size_t textlen = text ? strlen(text) : 0;
3082 char buf[SIZEOF_STR];
3084 enum line_type type;
3085 bool first_read = view->lines == 0;
3087 if (textlen <= SIZEOF_TREE_ATTR)
3090 type = text[STRING_SIZE("100644 ")] == 't'
3091 ? LINE_TREE_DIR : LINE_TREE_FILE;
3094 /* Add path info line */
3095 if (!string_format(buf, "Directory path /%s", opt_path) ||
3096 !realloc_lines(view, view->line_size + 1) ||
3097 !add_line_text(view, buf, LINE_DEFAULT))
3100 /* Insert "link" to parent directory. */
3102 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
3103 !realloc_lines(view, view->line_size + 1) ||
3104 !add_line_text(view, buf, LINE_TREE_DIR))
3109 /* Strip the path part ... */
3111 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3112 size_t striplen = strlen(opt_path);
3113 char *path = text + SIZEOF_TREE_ATTR;
3115 if (pathlen > striplen)
3116 memmove(path, path + striplen,
3117 pathlen - striplen + 1);
3120 /* Skip "Directory ..." and ".." line. */
3121 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
3122 struct line *line = &view->line[pos];
3123 char *path1 = ((char *) line->data) + SIZEOF_TREE_ATTR;
3124 char *path2 = text + SIZEOF_TREE_ATTR;
3125 int cmp = tree_compare_entry(line->type, path1, type, path2);
3130 text = strdup(text);
3134 if (view->lines > pos)
3135 memmove(&view->line[pos + 1], &view->line[pos],
3136 (view->lines - pos) * sizeof(*line));
3138 line = &view->line[pos];
3145 if (!add_line_text(view, text, type))
3148 if (tree_lineno > view->lineno) {
3149 view->lineno = tree_lineno;
3157 tree_request(struct view *view, enum request request, struct line *line)
3159 enum open_flags flags;
3161 if (request == REQ_TREE_PARENT) {
3164 request = REQ_ENTER;
3165 line = &view->line[1];
3167 /* quit view if at top of tree */
3168 return REQ_VIEW_CLOSE;
3171 if (request != REQ_ENTER)
3174 /* Cleanup the stack if the tree view is at a different tree. */
3175 while (!*opt_path && tree_stack)
3176 pop_tree_stack_entry();
3178 switch (line->type) {
3180 /* Depending on whether it is a subdir or parent (updir?) link
3181 * mangle the path buffer. */
3182 if (line == &view->line[1] && *opt_path) {
3183 pop_tree_stack_entry();
3186 char *data = line->data;
3187 char *basename = data + SIZEOF_TREE_ATTR;
3189 push_tree_stack_entry(basename, view->lineno);
3192 /* Trees and subtrees share the same ID, so they are not not
3193 * unique like blobs. */
3194 flags = OPEN_RELOAD;
3195 request = REQ_VIEW_TREE;
3198 case LINE_TREE_FILE:
3199 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3200 request = REQ_VIEW_BLOB;
3207 open_view(view, request, flags);
3208 if (request == REQ_VIEW_TREE) {
3209 view->lineno = tree_lineno;
3216 tree_select(struct view *view, struct line *line)
3218 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3220 if (line->type == LINE_TREE_FILE) {
3221 string_copy_rev(ref_blob, text);
3223 } else if (line->type != LINE_TREE_DIR) {
3227 string_copy_rev(view->ref, text);
3230 static struct view_ops tree_ops = {
3241 blob_read(struct view *view, char *line)
3243 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3246 static struct view_ops blob_ops = {
3265 char rev[SIZEOF_REV];
3266 char name[SIZEOF_STR];
3270 char rev[SIZEOF_REV];
3271 char name[SIZEOF_STR];
3275 static struct status stage_status;
3276 static enum line_type stage_line_type;
3278 /* Get fields from the diff line:
3279 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3282 status_get_diff(struct status *file, char *buf, size_t bufsize)
3284 char *old_mode = buf + 1;
3285 char *new_mode = buf + 8;
3286 char *old_rev = buf + 15;
3287 char *new_rev = buf + 56;
3288 char *status = buf + 97;
3291 old_mode[-1] != ':' ||
3292 new_mode[-1] != ' ' ||
3293 old_rev[-1] != ' ' ||
3294 new_rev[-1] != ' ' ||
3298 file->status = *status;
3300 string_copy_rev(file->old.rev, old_rev);
3301 string_copy_rev(file->new.rev, new_rev);
3303 file->old.mode = strtoul(old_mode, NULL, 8);
3304 file->new.mode = strtoul(new_mode, NULL, 8);
3306 file->old.name[0] = file->new.name[0] = 0;
3312 status_run(struct view *view, const char cmd[], bool diff, enum line_type type)
3314 struct status *file = NULL;
3315 struct status *unmerged = NULL;
3316 char buf[SIZEOF_STR * 4];
3320 pipe = popen(cmd, "r");
3324 add_line_data(view, NULL, type);
3326 while (!feof(pipe) && !ferror(pipe)) {
3330 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3333 bufsize += readsize;
3335 /* Process while we have NUL chars. */
3336 while ((sep = memchr(buf, 0, bufsize))) {
3337 size_t sepsize = sep - buf + 1;
3340 if (!realloc_lines(view, view->line_size + 1))
3343 file = calloc(1, sizeof(*file));
3347 add_line_data(view, file, type);
3350 /* Parse diff info part. */
3354 } else if (!file->status) {
3355 if (!status_get_diff(file, buf, sepsize))
3359 memmove(buf, sep + 1, bufsize);
3361 sep = memchr(buf, 0, bufsize);
3364 sepsize = sep - buf + 1;
3366 /* Collapse all 'M'odified entries that
3367 * follow a associated 'U'nmerged entry.
3369 if (file->status == 'U') {
3372 } else if (unmerged) {
3373 int collapse = !strcmp(buf, unmerged->new.name);
3384 /* Grab the old name for rename/copy. */
3385 if (!*file->old.name &&
3386 (file->status == 'R' || file->status == 'C')) {
3387 sepsize = sep - buf + 1;
3388 string_ncopy(file->old.name, buf, sepsize);
3390 memmove(buf, sep + 1, bufsize);
3392 sep = memchr(buf, 0, bufsize);
3395 sepsize = sep - buf + 1;
3398 /* git-ls-files just delivers a NUL separated
3399 * list of file names similar to the second half
3400 * of the git-diff-* output. */
3401 string_ncopy(file->new.name, buf, sepsize);
3402 if (!*file->old.name)
3403 string_copy(file->old.name, file->new.name);
3405 memmove(buf, sep + 1, bufsize);
3416 if (!view->line[view->lines - 1].data)
3417 add_line_data(view, NULL, LINE_STAT_NONE);
3423 /* Don't show unmerged entries in the staged section. */
3424 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD"
3425 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
3426 #define STATUS_LIST_OTHER_CMD \
3427 "git ls-files -z --others --exclude-per-directory=.gitignore"
3429 #define STATUS_DIFF_INDEX_SHOW_CMD \
3430 "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null"
3432 #define STATUS_DIFF_FILES_SHOW_CMD \
3433 "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null"
3435 /* First parse staged info using git-diff-index(1), then parse unstaged
3436 * info using git-diff-files(1), and finally untracked files using
3437 * git-ls-files(1). */
3439 status_open(struct view *view)
3441 struct stat statbuf;
3442 char exclude[SIZEOF_STR];
3443 char cmd[SIZEOF_STR];
3444 unsigned long prev_lineno = view->lineno;
3447 for (i = 0; i < view->lines; i++)
3448 free(view->line[i].data);
3450 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
3453 if (!realloc_lines(view, view->line_size + 6))
3456 if (!string_format(exclude, "%s/info/exclude", opt_git_dir))
3459 string_copy(cmd, STATUS_LIST_OTHER_CMD);
3461 if (stat(exclude, &statbuf) >= 0) {
3462 size_t cmdsize = strlen(cmd);
3464 if (!string_format_from(cmd, &cmdsize, " %s", "--exclude-from=") ||
3465 sq_quote(cmd, cmdsize, exclude) >= sizeof(cmd))
3469 system("git update-index -q --refresh");
3471 if (!status_run(view, STATUS_DIFF_INDEX_CMD, TRUE, LINE_STAT_STAGED) ||
3472 !status_run(view, STATUS_DIFF_FILES_CMD, TRUE, LINE_STAT_UNSTAGED) ||
3473 !status_run(view, cmd, FALSE, LINE_STAT_UNTRACKED))
3476 /* If all went well restore the previous line number to stay in
3478 if (prev_lineno < view->lines)
3479 view->lineno = prev_lineno;
3481 view->lineno = view->lines - 1;
3487 status_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
3489 struct status *status = line->data;
3490 int tilde_attr = get_line_attr(LINE_MAIN_DELIM);
3492 wmove(view->win, lineno, 0);
3495 wattrset(view->win, get_line_attr(LINE_CURSOR));
3496 wchgat(view->win, -1, 0, LINE_CURSOR, NULL);
3499 } else if (!status && line->type != LINE_STAT_NONE) {
3500 wattrset(view->win, get_line_attr(LINE_STAT_SECTION));
3501 wchgat(view->win, -1, 0, LINE_STAT_SECTION, NULL);
3504 wattrset(view->win, get_line_attr(line->type));
3510 switch (line->type) {
3511 case LINE_STAT_STAGED:
3512 text = "Changes to be committed:";
3515 case LINE_STAT_UNSTAGED:
3516 text = "Changed but not updated:";
3519 case LINE_STAT_UNTRACKED:
3520 text = "Untracked files:";
3523 case LINE_STAT_NONE:
3524 text = " (no files)";
3531 draw_text(view, text, view->width, 0, TRUE, tilde_attr);
3535 waddch(view->win, status->status);
3537 wattrset(view->win, A_NORMAL);
3538 wmove(view->win, lineno, 4);
3539 if (view->width < 5)
3542 draw_text(view, status->new.name, view->width - 5, 5, TRUE, tilde_attr);
3547 status_enter(struct view *view, struct line *line)
3549 struct status *status = line->data;
3550 char oldpath[SIZEOF_STR] = "";
3551 char newpath[SIZEOF_STR] = "";
3555 if (line->type == LINE_STAT_NONE ||
3556 (!status && line[1].type == LINE_STAT_NONE)) {
3557 report("No file to diff");
3562 if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath))
3564 /* Diffs for unmerged entries are empty when pasing the
3565 * new path, so leave it empty. */
3566 if (status->status != 'U' &&
3567 sq_quote(newpath, 0, status->new.name) >= sizeof(newpath))
3572 line->type != LINE_STAT_UNTRACKED &&
3573 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
3576 switch (line->type) {
3577 case LINE_STAT_STAGED:
3578 if (!string_format_from(opt_cmd, &cmdsize,
3579 STATUS_DIFF_INDEX_SHOW_CMD, oldpath, newpath))
3582 info = "Staged changes to %s";
3584 info = "Staged changes";
3587 case LINE_STAT_UNSTAGED:
3588 if (!string_format_from(opt_cmd, &cmdsize,
3589 STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath))
3592 info = "Unstaged changes to %s";
3594 info = "Unstaged changes";
3597 case LINE_STAT_UNTRACKED:
3603 report("No file to show");
3607 opt_pipe = fopen(status->new.name, "r");
3608 info = "Untracked file %s";
3612 die("line type %d not handled in switch", line->type);
3615 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | OPEN_SPLIT);
3616 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
3618 stage_status = *status;
3620 memset(&stage_status, 0, sizeof(stage_status));
3623 stage_line_type = line->type;
3624 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
3632 status_update_file(struct view *view, struct status *status, enum line_type type)
3634 char cmd[SIZEOF_STR];
3635 char buf[SIZEOF_STR];
3642 type != LINE_STAT_UNTRACKED &&
3643 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
3647 case LINE_STAT_STAGED:
3648 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
3651 status->old.name, 0))
3654 string_add(cmd, cmdsize, "git update-index -z --index-info");
3657 case LINE_STAT_UNSTAGED:
3658 case LINE_STAT_UNTRACKED:
3659 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
3662 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
3666 die("line type %d not handled in switch", type);
3669 pipe = popen(cmd, "w");
3673 while (!ferror(pipe) && written < bufsize) {
3674 written += fwrite(buf + written, 1, bufsize - written, pipe);
3679 if (written != bufsize)
3686 status_update(struct view *view)
3688 struct line *line = &view->line[view->lineno];
3690 assert(view->lines);
3693 while (++line < view->line + view->lines && line->data) {
3694 if (!status_update_file(view, line->data, line->type))
3695 report("Failed to update file status");
3698 if (!line[-1].data) {
3699 report("Nothing to update");
3703 } else if (!status_update_file(view, line->data, line->type)) {
3704 report("Failed to update file status");
3709 status_request(struct view *view, enum request request, struct line *line)
3711 struct status *status = line->data;
3714 case REQ_STATUS_UPDATE:
3715 status_update(view);
3718 case REQ_STATUS_MERGE:
3719 if (!status || status->status != 'U') {
3720 report("Merging only possible for files with unmerged status ('U').");
3723 open_mergetool(status->new.name);
3730 open_editor(status->status != '?', status->new.name);
3734 /* After returning the status view has been split to
3735 * show the stage view. No further reloading is
3737 status_enter(view, line);
3741 /* Simply reload the view. */
3748 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
3754 status_select(struct view *view, struct line *line)
3756 struct status *status = line->data;
3757 char file[SIZEOF_STR] = "all files";
3761 if (status && !string_format(file, "'%s'", status->new.name))
3764 if (!status && line[1].type == LINE_STAT_NONE)
3767 switch (line->type) {
3768 case LINE_STAT_STAGED:
3769 text = "Press %s to unstage %s for commit";
3772 case LINE_STAT_UNSTAGED:
3773 text = "Press %s to stage %s for commit";
3776 case LINE_STAT_UNTRACKED:
3777 text = "Press %s to stage %s for addition";
3780 case LINE_STAT_NONE:
3781 text = "Nothing to update";
3785 die("line type %d not handled in switch", line->type);
3788 if (status && status->status == 'U') {
3789 text = "Press %s to resolve conflict in %s";
3790 key = get_key(REQ_STATUS_MERGE);
3793 key = get_key(REQ_STATUS_UPDATE);
3796 string_format(view->ref, text, key, file);
3800 status_grep(struct view *view, struct line *line)
3802 struct status *status = line->data;
3803 enum { S_STATUS, S_NAME, S_END } state;
3810 for (state = S_STATUS; state < S_END; state++) {
3814 case S_NAME: text = status->new.name; break;
3816 buf[0] = status->status;
3824 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3831 static struct view_ops status_ops = {
3843 stage_diff_line(FILE *pipe, struct line *line)
3845 char *buf = line->data;
3846 size_t bufsize = strlen(buf);
3849 while (!ferror(pipe) && written < bufsize) {
3850 written += fwrite(buf + written, 1, bufsize - written, pipe);
3855 return written == bufsize;
3858 static struct line *
3859 stage_diff_hdr(struct view *view, struct line *line)
3861 int diff_hdr_dir = line->type == LINE_DIFF_CHUNK ? -1 : 1;
3862 struct line *diff_hdr;
3864 if (line->type == LINE_DIFF_CHUNK)
3865 diff_hdr = line - 1;
3867 diff_hdr = view->line + 1;
3869 while (diff_hdr > view->line && diff_hdr < view->line + view->lines) {
3870 if (diff_hdr->type == LINE_DIFF_HEADER)
3873 diff_hdr += diff_hdr_dir;
3880 stage_update_chunk(struct view *view, struct line *line)
3882 char cmd[SIZEOF_STR];
3884 struct line *diff_hdr, *diff_chunk, *diff_end;
3887 diff_hdr = stage_diff_hdr(view, line);
3892 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
3895 if (!string_format_from(cmd, &cmdsize,
3896 "git apply --cached %s - && "
3897 "git update-index -q --unmerged --refresh 2>/dev/null",
3898 stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
3901 pipe = popen(cmd, "w");
3905 diff_end = view->line + view->lines;
3906 if (line->type != LINE_DIFF_CHUNK) {
3907 diff_chunk = diff_hdr;
3910 for (diff_chunk = line + 1; diff_chunk < diff_end; diff_chunk++)
3911 if (diff_chunk->type == LINE_DIFF_CHUNK ||
3912 diff_chunk->type == LINE_DIFF_HEADER)
3913 diff_end = diff_chunk;
3917 while (diff_hdr->type != LINE_DIFF_CHUNK) {
3918 switch (diff_hdr->type) {
3919 case LINE_DIFF_HEADER:
3920 case LINE_DIFF_INDEX:
3930 if (!stage_diff_line(pipe, diff_hdr++)) {
3937 while (diff_chunk < diff_end && stage_diff_line(pipe, diff_chunk))
3942 if (diff_chunk != diff_end)
3949 stage_update(struct view *view, struct line *line)
3951 if (stage_line_type != LINE_STAT_UNTRACKED &&
3952 (line->type == LINE_DIFF_CHUNK || !stage_status.status)) {
3953 if (!stage_update_chunk(view, line)) {
3954 report("Failed to apply chunk");
3958 } else if (!status_update_file(view, &stage_status, stage_line_type)) {
3959 report("Failed to update file");
3963 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
3965 view = VIEW(REQ_VIEW_STATUS);
3966 if (view_is_displayed(view))
3967 status_enter(view, &view->line[view->lineno]);
3971 stage_request(struct view *view, enum request request, struct line *line)
3974 case REQ_STATUS_UPDATE:
3975 stage_update(view, line);
3979 if (!stage_status.new.name[0])
3982 open_editor(stage_status.status != '?', stage_status.new.name);
3986 pager_request(view, request, line);
3996 static struct view_ops stage_ops = {
4012 char id[SIZEOF_REV]; /* SHA1 ID. */
4013 char title[128]; /* First line of the commit message. */
4014 char author[75]; /* Author of the commit. */
4015 struct tm time; /* Date from the author ident. */
4016 struct ref **refs; /* Repository references. */
4017 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
4018 size_t graph_size; /* The width of the graph array. */
4019 bool has_parents; /* Rewritten --parents seen. */
4022 /* Size of rev graph with no "padding" columns */
4023 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
4026 struct rev_graph *prev, *next, *parents;
4027 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
4029 struct commit *commit;
4031 unsigned int boundary:1;
4034 /* Parents of the commit being visualized. */
4035 static struct rev_graph graph_parents[4];
4037 /* The current stack of revisions on the graph. */
4038 static struct rev_graph graph_stacks[4] = {
4039 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
4040 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
4041 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
4042 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
4046 graph_parent_is_merge(struct rev_graph *graph)
4048 return graph->parents->size > 1;
4052 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
4054 struct commit *commit = graph->commit;
4056 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
4057 commit->graph[commit->graph_size++] = symbol;
4061 done_rev_graph(struct rev_graph *graph)
4063 if (graph_parent_is_merge(graph) &&
4064 graph->pos < graph->size - 1 &&
4065 graph->next->size == graph->size + graph->parents->size - 1) {
4066 size_t i = graph->pos + graph->parents->size - 1;
4068 graph->commit->graph_size = i * 2;
4069 while (i < graph->next->size - 1) {
4070 append_to_rev_graph(graph, ' ');
4071 append_to_rev_graph(graph, '\\');
4076 graph->size = graph->pos = 0;
4077 graph->commit = NULL;
4078 memset(graph->parents, 0, sizeof(*graph->parents));
4082 push_rev_graph(struct rev_graph *graph, char *parent)
4086 /* "Collapse" duplicate parents lines.
4088 * FIXME: This needs to also update update the drawn graph but
4089 * for now it just serves as a method for pruning graph lines. */
4090 for (i = 0; i < graph->size; i++)
4091 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
4094 if (graph->size < SIZEOF_REVITEMS) {
4095 string_copy_rev(graph->rev[graph->size++], parent);
4100 get_rev_graph_symbol(struct rev_graph *graph)
4104 if (graph->boundary)
4105 symbol = REVGRAPH_BOUND;
4106 else if (graph->parents->size == 0)
4107 symbol = REVGRAPH_INIT;
4108 else if (graph_parent_is_merge(graph))
4109 symbol = REVGRAPH_MERGE;
4110 else if (graph->pos >= graph->size)
4111 symbol = REVGRAPH_BRANCH;
4113 symbol = REVGRAPH_COMMIT;
4119 draw_rev_graph(struct rev_graph *graph)
4122 chtype separator, line;
4124 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
4125 static struct rev_filler fillers[] = {
4126 { ' ', REVGRAPH_LINE },
4131 chtype symbol = get_rev_graph_symbol(graph);
4132 struct rev_filler *filler;
4135 filler = &fillers[DEFAULT];
4137 for (i = 0; i < graph->pos; i++) {
4138 append_to_rev_graph(graph, filler->line);
4139 if (graph_parent_is_merge(graph->prev) &&
4140 graph->prev->pos == i)
4141 filler = &fillers[RSHARP];
4143 append_to_rev_graph(graph, filler->separator);
4146 /* Place the symbol for this revision. */
4147 append_to_rev_graph(graph, symbol);
4149 if (graph->prev->size > graph->size)
4150 filler = &fillers[RDIAG];
4152 filler = &fillers[DEFAULT];
4156 for (; i < graph->size; i++) {
4157 append_to_rev_graph(graph, filler->separator);
4158 append_to_rev_graph(graph, filler->line);
4159 if (graph_parent_is_merge(graph->prev) &&
4160 i < graph->prev->pos + graph->parents->size)
4161 filler = &fillers[RSHARP];
4162 if (graph->prev->size > graph->size)
4163 filler = &fillers[LDIAG];
4166 if (graph->prev->size > graph->size) {
4167 append_to_rev_graph(graph, filler->separator);
4168 if (filler->line != ' ')
4169 append_to_rev_graph(graph, filler->line);
4173 /* Prepare the next rev graph */
4175 prepare_rev_graph(struct rev_graph *graph)
4179 /* First, traverse all lines of revisions up to the active one. */
4180 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
4181 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
4184 push_rev_graph(graph->next, graph->rev[graph->pos]);
4187 /* Interleave the new revision parent(s). */
4188 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
4189 push_rev_graph(graph->next, graph->parents->rev[i]);
4191 /* Lastly, put any remaining revisions. */
4192 for (i = graph->pos + 1; i < graph->size; i++)
4193 push_rev_graph(graph->next, graph->rev[i]);
4197 update_rev_graph(struct rev_graph *graph)
4199 /* If this is the finalizing update ... */
4201 prepare_rev_graph(graph);
4203 /* Graph visualization needs a one rev look-ahead,
4204 * so the first update doesn't visualize anything. */
4205 if (!graph->prev->commit)
4208 draw_rev_graph(graph->prev);
4209 done_rev_graph(graph->prev->prev);
4218 main_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
4220 char buf[DATE_COLS + 1];
4221 struct commit *commit = line->data;
4222 enum line_type type;
4228 if (!*commit->author)
4231 space = view->width;
4232 wmove(view->win, lineno, col);
4236 wattrset(view->win, get_line_attr(type));
4237 wchgat(view->win, -1, 0, type, NULL);
4240 type = LINE_MAIN_COMMIT;
4241 wattrset(view->win, get_line_attr(LINE_MAIN_DATE));
4242 tilde_attr = get_line_attr(LINE_MAIN_DELIM);
4248 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time);
4250 view, buf, view->width - col, col, FALSE, tilde_attr);
4252 view, " ", view->width - col - n, col + n, FALSE,
4256 wmove(view->win, lineno, col);
4257 if (col >= view->width)
4260 if (type != LINE_CURSOR)
4261 wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR));
4266 max_len = view->width - col;
4267 if (max_len > AUTHOR_COLS - 1)
4268 max_len = AUTHOR_COLS - 1;
4270 view, commit->author, max_len, col, TRUE, tilde_attr);
4272 if (col >= view->width)
4276 if (opt_rev_graph && commit->graph_size) {
4277 size_t graph_size = view->width - col;
4280 if (type != LINE_CURSOR)
4281 wattrset(view->win, get_line_attr(LINE_MAIN_REVGRAPH));
4282 wmove(view->win, lineno, col);
4283 if (graph_size > commit->graph_size)
4284 graph_size = commit->graph_size;
4285 /* Using waddch() instead of waddnstr() ensures that
4286 * they'll be rendered correctly for the cursor line. */
4287 for (i = 0; i < graph_size; i++)
4288 waddch(view->win, commit->graph[i]);
4290 col += commit->graph_size + 1;
4291 if (col >= view->width)
4293 waddch(view->win, ' ');
4295 if (type != LINE_CURSOR)
4296 wattrset(view->win, A_NORMAL);
4298 wmove(view->win, lineno, col);
4300 if (opt_show_refs && commit->refs) {
4304 if (type == LINE_CURSOR)
4306 else if (commit->refs[i]->ltag)
4307 wattrset(view->win, get_line_attr(LINE_MAIN_LOCAL_TAG));
4308 else if (commit->refs[i]->tag)
4309 wattrset(view->win, get_line_attr(LINE_MAIN_TAG));
4310 else if (commit->refs[i]->remote)
4311 wattrset(view->win, get_line_attr(LINE_MAIN_REMOTE));
4313 wattrset(view->win, get_line_attr(LINE_MAIN_REF));
4316 view, "[", view->width - col, col, TRUE,
4319 view, commit->refs[i]->name, view->width - col,
4320 col, TRUE, tilde_attr);
4322 view, "]", view->width - col, col, TRUE,
4324 if (type != LINE_CURSOR)
4325 wattrset(view->win, A_NORMAL);
4327 view, " ", view->width - col, col, TRUE,
4329 if (col >= view->width)
4331 } while (commit->refs[i++]->next);
4334 if (type != LINE_CURSOR)
4335 wattrset(view->win, get_line_attr(type));
4338 view, commit->title, view->width - col, col, TRUE, tilde_attr);
4343 /* Reads git log --pretty=raw output and parses it into the commit struct. */
4345 main_read(struct view *view, char *line)
4347 static struct rev_graph *graph = graph_stacks;
4348 enum line_type type;
4349 struct commit *commit;
4352 update_rev_graph(graph);
4356 type = get_line_type(line);
4357 if (type == LINE_COMMIT) {
4358 commit = calloc(1, sizeof(struct commit));
4362 line += STRING_SIZE("commit ");
4364 graph->boundary = 1;
4368 string_copy_rev(commit->id, line);
4369 commit->refs = get_refs(commit->id);
4370 graph->commit = commit;
4371 add_line_data(view, commit, LINE_MAIN_COMMIT);
4373 while ((line = strchr(line, ' '))) {
4375 push_rev_graph(graph->parents, line);
4376 commit->has_parents = TRUE;
4383 commit = view->line[view->lines - 1].data;
4387 if (commit->has_parents)
4389 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
4394 /* Parse author lines where the name may be empty:
4395 * author <email@address.tld> 1138474660 +0100
4397 char *ident = line + STRING_SIZE("author ");
4398 char *nameend = strchr(ident, '<');
4399 char *emailend = strchr(ident, '>');
4401 if (!nameend || !emailend)
4404 update_rev_graph(graph);
4405 graph = graph->next;
4407 *nameend = *emailend = 0;
4408 ident = chomp_string(ident);
4410 ident = chomp_string(nameend + 1);
4415 string_ncopy(commit->author, ident, strlen(ident));
4417 /* Parse epoch and timezone */
4418 if (emailend[1] == ' ') {
4419 char *secs = emailend + 2;
4420 char *zone = strchr(secs, ' ');
4421 time_t time = (time_t) atol(secs);
4423 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
4427 tz = ('0' - zone[1]) * 60 * 60 * 10;
4428 tz += ('0' - zone[2]) * 60 * 60;
4429 tz += ('0' - zone[3]) * 60;
4430 tz += ('0' - zone[4]) * 60;
4438 gmtime_r(&time, &commit->time);
4443 /* Fill in the commit title if it has not already been set. */
4444 if (commit->title[0])
4447 /* Require titles to start with a non-space character at the
4448 * offset used by git log. */
4449 if (strncmp(line, " ", 4))
4452 /* Well, if the title starts with a whitespace character,
4453 * try to be forgiving. Otherwise we end up with no title. */
4454 while (isspace(*line))
4458 /* FIXME: More graceful handling of titles; append "..." to
4459 * shortened titles, etc. */
4461 string_ncopy(commit->title, line, strlen(line));
4468 main_request(struct view *view, enum request request, struct line *line)
4470 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4472 if (request == REQ_ENTER)
4473 open_view(view, REQ_VIEW_DIFF, flags);
4481 main_grep(struct view *view, struct line *line)
4483 struct commit *commit = line->data;
4484 enum { S_TITLE, S_AUTHOR, S_DATE, S_END } state;
4485 char buf[DATE_COLS + 1];
4488 for (state = S_TITLE; state < S_END; state++) {
4492 case S_TITLE: text = commit->title; break;
4493 case S_AUTHOR: text = commit->author; break;
4495 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
4504 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4512 main_select(struct view *view, struct line *line)
4514 struct commit *commit = line->data;
4516 string_copy_rev(view->ref, commit->id);
4517 string_copy_rev(ref_commit, view->ref);
4520 static struct view_ops main_ops = {
4532 * Unicode / UTF-8 handling
4534 * NOTE: Much of the following code for dealing with unicode is derived from
4535 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
4536 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
4539 /* I've (over)annotated a lot of code snippets because I am not entirely
4540 * confident that the approach taken by this small UTF-8 interface is correct.
4544 unicode_width(unsigned long c)
4547 (c <= 0x115f /* Hangul Jamo */
4550 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
4552 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
4553 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
4554 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
4555 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
4556 || (c >= 0xffe0 && c <= 0xffe6)
4557 || (c >= 0x20000 && c <= 0x2fffd)
4558 || (c >= 0x30000 && c <= 0x3fffd)))
4562 return opt_tab_size;
4567 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
4568 * Illegal bytes are set one. */
4569 static const unsigned char utf8_bytes[256] = {
4570 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,
4571 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,
4572 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,
4573 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,
4574 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,
4575 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,
4576 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,
4577 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,
4580 /* Decode UTF-8 multi-byte representation into a unicode character. */
4581 static inline unsigned long
4582 utf8_to_unicode(const char *string, size_t length)
4584 unsigned long unicode;
4588 unicode = string[0];
4591 unicode = (string[0] & 0x1f) << 6;
4592 unicode += (string[1] & 0x3f);
4595 unicode = (string[0] & 0x0f) << 12;
4596 unicode += ((string[1] & 0x3f) << 6);
4597 unicode += (string[2] & 0x3f);
4600 unicode = (string[0] & 0x0f) << 18;
4601 unicode += ((string[1] & 0x3f) << 12);
4602 unicode += ((string[2] & 0x3f) << 6);
4603 unicode += (string[3] & 0x3f);
4606 unicode = (string[0] & 0x0f) << 24;
4607 unicode += ((string[1] & 0x3f) << 18);
4608 unicode += ((string[2] & 0x3f) << 12);
4609 unicode += ((string[3] & 0x3f) << 6);
4610 unicode += (string[4] & 0x3f);
4613 unicode = (string[0] & 0x01) << 30;
4614 unicode += ((string[1] & 0x3f) << 24);
4615 unicode += ((string[2] & 0x3f) << 18);
4616 unicode += ((string[3] & 0x3f) << 12);
4617 unicode += ((string[4] & 0x3f) << 6);
4618 unicode += (string[5] & 0x3f);
4621 die("Invalid unicode length");
4624 /* Invalid characters could return the special 0xfffd value but NUL
4625 * should be just as good. */
4626 return unicode > 0xffff ? 0 : unicode;
4629 /* Calculates how much of string can be shown within the given maximum width
4630 * and sets trimmed parameter to non-zero value if all of string could not be
4631 * shown. If the reserve flag is TRUE, it will reserve at least one
4632 * trailing character, which can be useful when drawing a delimiter.
4634 * Returns the number of bytes to output from string to satisfy max_width. */
4636 utf8_length(const char *string, size_t max_width, int *trimmed, bool reserve)
4638 const char *start = string;
4639 const char *end = strchr(string, '\0');
4640 unsigned char last_bytes = 0;
4645 while (string < end) {
4646 int c = *(unsigned char *) string;
4647 unsigned char bytes = utf8_bytes[c];
4649 unsigned long unicode;
4651 if (string + bytes > end)
4654 /* Change representation to figure out whether
4655 * it is a single- or double-width character. */
4657 unicode = utf8_to_unicode(string, bytes);
4658 /* FIXME: Graceful handling of invalid unicode character. */
4662 ucwidth = unicode_width(unicode);
4664 if (width > max_width) {
4666 if (reserve && width - ucwidth == max_width) {
4667 string -= last_bytes;
4676 return string - start;
4684 /* Whether or not the curses interface has been initialized. */
4685 static bool cursed = FALSE;
4687 /* The status window is used for polling keystrokes. */
4688 static WINDOW *status_win;
4690 static bool status_empty = TRUE;
4692 /* Update status and title window. */
4694 report(const char *msg, ...)
4696 struct view *view = display[current_view];
4702 char buf[SIZEOF_STR];
4705 va_start(args, msg);
4706 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
4707 buf[sizeof(buf) - 1] = 0;
4708 buf[sizeof(buf) - 2] = '.';
4709 buf[sizeof(buf) - 3] = '.';
4710 buf[sizeof(buf) - 4] = '.';
4716 if (!status_empty || *msg) {
4719 va_start(args, msg);
4721 wmove(status_win, 0, 0);
4723 vwprintw(status_win, msg, args);
4724 status_empty = FALSE;
4726 status_empty = TRUE;
4728 wclrtoeol(status_win);
4729 wrefresh(status_win);
4734 update_view_title(view);
4735 update_display_cursor(view);
4738 /* Controls when nodelay should be in effect when polling user input. */
4740 set_nonblocking_input(bool loading)
4742 static unsigned int loading_views;
4744 if ((loading == FALSE && loading_views-- == 1) ||
4745 (loading == TRUE && loading_views++ == 0))
4746 nodelay(status_win, loading);
4754 /* Initialize the curses library */
4755 if (isatty(STDIN_FILENO)) {
4756 cursed = !!initscr();
4758 /* Leave stdin and stdout alone when acting as a pager. */
4759 FILE *io = fopen("/dev/tty", "r+");
4762 die("Failed to open /dev/tty");
4763 cursed = !!newterm(NULL, io, io);
4767 die("Failed to initialize curses");
4769 nonl(); /* Tell curses not to do NL->CR/NL on output */
4770 cbreak(); /* Take input chars one at a time, no wait for \n */
4771 noecho(); /* Don't echo input */
4772 leaveok(stdscr, TRUE);
4777 getmaxyx(stdscr, y, x);
4778 status_win = newwin(1, 0, y - 1, 0);
4780 die("Failed to create status window");
4782 /* Enable keyboard mapping */
4783 keypad(status_win, TRUE);
4784 wbkgdset(status_win, get_line_attr(LINE_STATUS));
4788 read_prompt(const char *prompt)
4790 enum { READING, STOP, CANCEL } status = READING;
4791 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
4794 while (status == READING) {
4800 foreach_view (view, i)
4805 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
4806 wclrtoeol(status_win);
4808 /* Refresh, accept single keystroke of input */
4809 key = wgetch(status_win);
4814 status = pos ? STOP : CANCEL;
4832 if (pos >= sizeof(buf)) {
4833 report("Input string too long");
4838 buf[pos++] = (char) key;
4842 /* Clear the status window */
4843 status_empty = FALSE;
4846 if (status == CANCEL)
4855 * Repository references
4858 static struct ref *refs = NULL;
4859 static size_t refs_alloc = 0;
4860 static size_t refs_size = 0;
4862 /* Id <-> ref store */
4863 static struct ref ***id_refs = NULL;
4864 static size_t id_refs_alloc = 0;
4865 static size_t id_refs_size = 0;
4867 static struct ref **
4870 struct ref ***tmp_id_refs;
4871 struct ref **ref_list = NULL;
4872 size_t ref_list_alloc = 0;
4873 size_t ref_list_size = 0;
4876 for (i = 0; i < id_refs_size; i++)
4877 if (!strcmp(id, id_refs[i][0]->id))
4880 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
4885 id_refs = tmp_id_refs;
4887 for (i = 0; i < refs_size; i++) {
4890 if (strcmp(id, refs[i].id))
4893 tmp = realloc_items(ref_list, &ref_list_alloc,
4894 ref_list_size + 1, sizeof(*ref_list));
4902 if (ref_list_size > 0)
4903 ref_list[ref_list_size - 1]->next = 1;
4904 ref_list[ref_list_size] = &refs[i];
4906 /* XXX: The properties of the commit chains ensures that we can
4907 * safely modify the shared ref. The repo references will
4908 * always be similar for the same id. */
4909 ref_list[ref_list_size]->next = 0;
4914 id_refs[id_refs_size++] = ref_list;
4920 read_ref(char *id, size_t idlen, char *name, size_t namelen)
4925 bool remote = FALSE;
4926 bool check_replace = FALSE;
4928 if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) {
4929 if (!strcmp(name + namelen - 3, "^{}")) {
4932 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
4933 check_replace = TRUE;
4939 namelen -= STRING_SIZE("refs/tags/");
4940 name += STRING_SIZE("refs/tags/");
4942 } else if (!strncmp(name, "refs/remotes/", STRING_SIZE("refs/remotes/"))) {
4944 namelen -= STRING_SIZE("refs/remotes/");
4945 name += STRING_SIZE("refs/remotes/");
4947 } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
4948 namelen -= STRING_SIZE("refs/heads/");
4949 name += STRING_SIZE("refs/heads/");
4951 } else if (!strcmp(name, "HEAD")) {
4955 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
4956 /* it's an annotated tag, replace the previous sha1 with the
4957 * resolved commit id; relies on the fact git-ls-remote lists
4958 * the commit id of an annotated tag right beofre the commit id
4960 refs[refs_size - 1].ltag = ltag;
4961 string_copy_rev(refs[refs_size - 1].id, id);
4965 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
4969 ref = &refs[refs_size++];
4970 ref->name = malloc(namelen + 1);
4974 strncpy(ref->name, name, namelen);
4975 ref->name[namelen] = 0;
4978 ref->remote = remote;
4979 string_copy_rev(ref->id, id);
4987 const char *cmd_env = getenv("TIG_LS_REMOTE");
4988 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
4990 return read_properties(popen(cmd, "r"), "\t", read_ref);
4994 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
4996 if (!strcmp(name, "i18n.commitencoding"))
4997 string_ncopy(opt_encoding, value, valuelen);
4999 if (!strcmp(name, "core.editor"))
5000 string_ncopy(opt_editor, value, valuelen);
5006 load_repo_config(void)
5008 return read_properties(popen(GIT_CONFIG " --list", "r"),
5009 "=", read_repo_config_option);
5013 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
5015 if (!opt_git_dir[0]) {
5016 string_ncopy(opt_git_dir, name, namelen);
5018 } else if (opt_is_inside_work_tree == -1) {
5019 /* This can be 3 different values depending on the
5020 * version of git being used. If git-rev-parse does not
5021 * understand --is-inside-work-tree it will simply echo
5022 * the option else either "true" or "false" is printed.
5023 * Default to true for the unknown case. */
5024 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
5027 string_ncopy(opt_cdup, name, namelen);
5033 /* XXX: The line outputted by "--show-cdup" can be empty so the option
5034 * must be the last one! */
5036 load_repo_info(void)
5038 return read_properties(popen("git rev-parse --git-dir --is-inside-work-tree --show-cdup 2>/dev/null", "r"),
5039 "=", read_repo_info);
5043 read_properties(FILE *pipe, const char *separators,
5044 int (*read_property)(char *, size_t, char *, size_t))
5046 char buffer[BUFSIZ];
5053 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
5058 name = chomp_string(name);
5059 namelen = strcspn(name, separators);
5061 if (name[namelen]) {
5063 value = chomp_string(name + namelen + 1);
5064 valuelen = strlen(value);
5071 state = read_property(name, namelen, value, valuelen);
5074 if (state != ERR && ferror(pipe))
5087 static void __NORETURN
5090 /* XXX: Restore tty modes and let the OS cleanup the rest! */
5096 static void __NORETURN
5097 die(const char *err, ...)
5103 va_start(args, err);
5104 fputs("tig: ", stderr);
5105 vfprintf(stderr, err, args);
5106 fputs("\n", stderr);
5113 warn(const char *msg, ...)
5117 va_start(args, msg);
5118 fputs("tig warning: ", stderr);
5119 vfprintf(stderr, msg, args);
5120 fputs("\n", stderr);
5125 main(int argc, char *argv[])
5128 enum request request;
5131 signal(SIGINT, quit);
5133 if (setlocale(LC_ALL, "")) {
5134 char *codeset = nl_langinfo(CODESET);
5136 string_ncopy(opt_codeset, codeset, strlen(codeset));
5139 if (load_repo_info() == ERR)
5140 die("Failed to load repo info.");
5142 if (load_options() == ERR)
5143 die("Failed to load user config.");
5145 /* Load the repo config file so options can be overwritten from
5146 * the command line. */
5147 if (load_repo_config() == ERR)
5148 die("Failed to load repo config.");
5150 if (!parse_options(argc, argv))
5153 /* Require a git repository unless when running in pager mode. */
5154 if (!opt_git_dir[0])
5155 die("Not a git repository");
5157 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
5160 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
5161 opt_iconv = iconv_open(opt_codeset, opt_encoding);
5162 if (opt_iconv == ICONV_NONE)
5163 die("Failed to initialize character set conversion");
5166 if (load_refs() == ERR)
5167 die("Failed to load refs.");
5169 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
5170 view->cmd_env = getenv(view->cmd_env);
5172 request = opt_request;
5176 while (view_driver(display[current_view], request)) {
5180 foreach_view (view, i)
5183 /* Refresh, accept single keystroke of input */
5184 key = wgetch(status_win);
5186 /* wgetch() with nodelay() enabled returns ERR when there's no
5193 request = get_keybinding(display[current_view]->keymap, key);
5195 /* Some low-level request handling. This keeps access to
5196 * status_win restricted. */
5200 char *cmd = read_prompt(":");
5202 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
5203 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
5204 opt_request = REQ_VIEW_DIFF;
5206 opt_request = REQ_VIEW_PAGER;
5215 case REQ_SEARCH_BACK:
5217 const char *prompt = request == REQ_SEARCH
5219 char *search = read_prompt(prompt);
5222 string_ncopy(opt_search, search, strlen(search));
5227 case REQ_SCREEN_RESIZE:
5231 getmaxyx(stdscr, height, width);
5233 /* Resize the status view and let the view driver take
5234 * care of resizing the displayed views. */
5235 wresize(status_win, 1, width);
5236 mvwin(status_win, height - 1, 0);
5237 wrefresh(status_win);