1 /* Copyright (c) 2006-2008 Jonas Fonseca <fonseca@diku.dk>
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License as
5 * published by the Free Software Foundation; either version 2 of
6 * the License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
19 #define TIG_VERSION "unknown-version"
34 #include <sys/types.h>
45 /* ncurses(3): Must be defined to have extended wide-character functions. */
46 #define _XOPEN_SOURCE_EXTENDED
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
99 /* The default interval between line numbers. */
100 #define NUMBER_INTERVAL 5
104 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
107 #define GIT_CONFIG "git config"
110 #define TIG_LS_REMOTE \
111 "git ls-remote $(git rev-parse --git-dir) 2>/dev/null"
113 #define TIG_DIFF_CMD \
114 "git show --pretty=fuller --no-color --root --patch-with-stat --find-copies-harder -C %s 2>/dev/null"
116 #define TIG_LOG_CMD \
117 "git log --no-color --cc --stat -n100 %s 2>/dev/null"
119 #define TIG_MAIN_CMD \
120 "git log --no-color --topo-order --parents --boundary --pretty=raw %s 2>/dev/null"
122 #define TIG_TREE_CMD \
125 #define TIG_BLOB_CMD \
126 "git cat-file blob %s"
128 /* XXX: Needs to be defined to the empty string. */
129 #define TIG_HELP_CMD ""
130 #define TIG_PAGER_CMD ""
131 #define TIG_STATUS_CMD ""
132 #define TIG_STAGE_CMD ""
133 #define TIG_BLAME_CMD ""
135 /* Some ascii-shorthands fitted into the ncurses namespace. */
137 #define KEY_RETURN '\r'
142 char *name; /* Ref name; tag or head names are shortened. */
143 char id[SIZEOF_REV]; /* Commit SHA1 ID */
144 unsigned int tag:1; /* Is it a tag? */
145 unsigned int ltag:1; /* If so, is the tag local? */
146 unsigned int remote:1; /* Is it a remote ref? */
147 unsigned int next:1; /* For ref lists: are there more refs? */
150 static struct ref **get_refs(char *id);
159 set_from_int_map(struct int_map *map, size_t map_size,
160 int *value, const char *name, int namelen)
165 for (i = 0; i < map_size; i++)
166 if (namelen == map[i].namelen &&
167 !strncasecmp(name, map[i].name, namelen)) {
168 *value = map[i].value;
181 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
183 if (srclen > dstlen - 1)
186 strncpy(dst, src, srclen);
190 /* Shorthands for safely copying into a fixed buffer. */
192 #define string_copy(dst, src) \
193 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
195 #define string_ncopy(dst, src, srclen) \
196 string_ncopy_do(dst, sizeof(dst), src, srclen)
198 #define string_copy_rev(dst, src) \
199 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
201 #define string_add(dst, from, src) \
202 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
205 chomp_string(char *name)
209 while (isspace(*name))
212 namelen = strlen(name) - 1;
213 while (namelen > 0 && isspace(name[namelen]))
220 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
223 size_t pos = bufpos ? *bufpos : 0;
226 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
232 return pos >= bufsize ? FALSE : TRUE;
235 #define string_format(buf, fmt, args...) \
236 string_nformat(buf, sizeof(buf), NULL, fmt, args)
238 #define string_format_from(buf, from, fmt, args...) \
239 string_nformat(buf, sizeof(buf), from, fmt, args)
242 string_enum_compare(const char *str1, const char *str2, int len)
246 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
248 /* Diff-Header == DIFF_HEADER */
249 for (i = 0; i < len; i++) {
250 if (toupper(str1[i]) == toupper(str2[i]))
253 if (string_enum_sep(str1[i]) &&
254 string_enum_sep(str2[i]))
257 return str1[i] - str2[i];
265 * NOTE: The following is a slightly modified copy of the git project's shell
266 * quoting routines found in the quote.c file.
268 * Help to copy the thing properly quoted for the shell safety. any single
269 * quote is replaced with '\'', any exclamation point is replaced with '\!',
270 * and the whole thing is enclosed in a
273 * original sq_quote result
274 * name ==> name ==> 'name'
275 * a b ==> a b ==> 'a b'
276 * a'b ==> a'\''b ==> 'a'\''b'
277 * a!b ==> a'\!'b ==> 'a'\!'b'
281 sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src)
285 #define BUFPUT(x) do { if (bufsize < SIZEOF_STR) buf[bufsize++] = (x); } while (0)
288 while ((c = *src++)) {
289 if (c == '\'' || c == '!') {
300 if (bufsize < SIZEOF_STR)
312 /* XXX: Keep the view request first and in sync with views[]. */ \
313 REQ_GROUP("View switching") \
314 REQ_(VIEW_MAIN, "Show main view"), \
315 REQ_(VIEW_DIFF, "Show diff view"), \
316 REQ_(VIEW_LOG, "Show log view"), \
317 REQ_(VIEW_TREE, "Show tree view"), \
318 REQ_(VIEW_BLOB, "Show blob view"), \
319 REQ_(VIEW_BLAME, "Show blame view"), \
320 REQ_(VIEW_HELP, "Show help page"), \
321 REQ_(VIEW_PAGER, "Show pager view"), \
322 REQ_(VIEW_STATUS, "Show status view"), \
323 REQ_(VIEW_STAGE, "Show stage view"), \
325 REQ_GROUP("View manipulation") \
326 REQ_(ENTER, "Enter current line and scroll"), \
327 REQ_(NEXT, "Move to next"), \
328 REQ_(PREVIOUS, "Move to previous"), \
329 REQ_(VIEW_NEXT, "Move focus to next view"), \
330 REQ_(REFRESH, "Reload and refresh"), \
331 REQ_(VIEW_CLOSE, "Close the current view"), \
332 REQ_(QUIT, "Close all views and quit"), \
334 REQ_GROUP("Cursor navigation") \
335 REQ_(MOVE_UP, "Move cursor one line up"), \
336 REQ_(MOVE_DOWN, "Move cursor one line down"), \
337 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
338 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
339 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
340 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
342 REQ_GROUP("Scrolling") \
343 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
344 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
345 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
346 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
348 REQ_GROUP("Searching") \
349 REQ_(SEARCH, "Search the view"), \
350 REQ_(SEARCH_BACK, "Search backwards in the view"), \
351 REQ_(FIND_NEXT, "Find next search match"), \
352 REQ_(FIND_PREV, "Find previous search match"), \
355 REQ_(PROMPT, "Bring up the prompt"), \
356 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
357 REQ_(SCREEN_RESIZE, "Resize the screen"), \
358 REQ_(SHOW_VERSION, "Show version information"), \
359 REQ_(STOP_LOADING, "Stop all loading views"), \
360 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
361 REQ_(TOGGLE_DATE, "Toggle date display"), \
362 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
363 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
364 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
365 REQ_(STATUS_UPDATE, "Update file status"), \
366 REQ_(STATUS_MERGE, "Merge file using external tool"), \
367 REQ_(TREE_PARENT, "Switch to parent directory in tree view"), \
368 REQ_(EDIT, "Open in editor"), \
369 REQ_(NONE, "Do nothing")
372 /* User action requests. */
374 #define REQ_GROUP(help)
375 #define REQ_(req, help) REQ_##req
377 /* Offset all requests to avoid conflicts with ncurses getch values. */
378 REQ_OFFSET = KEY_MAX + 1,
385 struct request_info {
386 enum request request;
392 static struct request_info req_info[] = {
393 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
394 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
401 get_request(const char *name)
403 int namelen = strlen(name);
406 for (i = 0; i < ARRAY_SIZE(req_info); i++)
407 if (req_info[i].namelen == namelen &&
408 !string_enum_compare(req_info[i].name, name, namelen))
409 return req_info[i].request;
419 static const char usage[] =
420 "tig " TIG_VERSION " (" __DATE__ ")\n"
422 "Usage: tig [options] [revs] [--] [paths]\n"
423 " or: tig show [options] [revs] [--] [paths]\n"
424 " or: tig blame [rev] path\n"
426 " or: tig < [git command output]\n"
429 " -v, --version Show version and exit\n"
430 " -h, --help Show help message and exit";
432 /* Option and state variables. */
433 static bool opt_date = TRUE;
434 static bool opt_author = TRUE;
435 static bool opt_line_number = FALSE;
436 static bool opt_rev_graph = FALSE;
437 static bool opt_show_refs = TRUE;
438 static int opt_num_interval = NUMBER_INTERVAL;
439 static int opt_tab_size = TABSIZE;
440 static enum request opt_request = REQ_VIEW_MAIN;
441 static char opt_cmd[SIZEOF_STR] = "";
442 static char opt_path[SIZEOF_STR] = "";
443 static char opt_file[SIZEOF_STR] = "";
444 static char opt_ref[SIZEOF_REF] = "";
445 static FILE *opt_pipe = NULL;
446 static char opt_encoding[20] = "UTF-8";
447 static bool opt_utf8 = TRUE;
448 static char opt_codeset[20] = "UTF-8";
449 static iconv_t opt_iconv = ICONV_NONE;
450 static char opt_search[SIZEOF_STR] = "";
451 static char opt_cdup[SIZEOF_STR] = "";
452 static char opt_git_dir[SIZEOF_STR] = "";
453 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
454 static char opt_editor[SIZEOF_STR] = "";
462 check_option(char *opt, char short_name, char *name, enum option_type type, ...)
472 int namelen = strlen(name);
476 if (strncmp(opt, name, namelen))
479 if (opt[namelen] == '=')
480 value = opt + namelen + 1;
483 if (!short_name || opt[1] != short_name)
488 va_start(args, type);
489 if (type == OPT_INT) {
490 number = va_arg(args, int *);
492 *number = atoi(value);
499 /* Returns the index of log or diff command or -1 to exit. */
501 parse_options(int argc, char *argv[])
511 subcommand = argv[1];
512 if (!strcmp(subcommand, "status")) {
513 opt_request = REQ_VIEW_STATUS;
515 warn("ignoring arguments after `%s'", subcommand);
518 } else if (!strcmp(subcommand, "blame")) {
519 opt_request = REQ_VIEW_BLAME;
520 if (argc <= 2 || argc > 4)
521 die("invalid number of options to blame\n\n%s", usage);
525 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
529 string_ncopy(opt_file, argv[i], strlen(argv[i]));
532 } else if (!strcmp(subcommand, "show")) {
533 opt_request = REQ_VIEW_DIFF;
535 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
536 opt_request = subcommand[0] == 'l'
537 ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
538 warn("`tig %s' has been deprecated", subcommand);
544 for (i = 1 + !!subcommand; i < argc; i++) {
547 if (opt[0] && opt[0] != '-')
550 if (!strcmp(opt, "--")) {
555 if (check_option(opt, 'v', "version", OPT_NONE)) {
556 printf("tig version %s\n", TIG_VERSION);
560 if (check_option(opt, 'h', "help", OPT_NONE)) {
565 if (!strcmp(opt, "-S")) {
566 warn("`%s' has been deprecated; use `tig status' instead", opt);
567 opt_request = REQ_VIEW_STATUS;
571 if (!strcmp(opt, "-l")) {
572 opt_request = REQ_VIEW_LOG;
573 } else if (!strcmp(opt, "-d")) {
574 opt_request = REQ_VIEW_DIFF;
575 } else if (check_option(opt, 'n', "line-number", OPT_INT, &opt_num_interval)) {
576 opt_line_number = TRUE;
577 } else if (check_option(opt, 'b', "tab-size", OPT_INT, &opt_tab_size)) {
578 opt_tab_size = MIN(opt_tab_size, TABSIZE);
580 if (altargc >= ARRAY_SIZE(altargv))
581 die("maximum number of arguments exceeded");
582 altargv[altargc++] = opt;
586 warn("`%s' has been deprecated", opt);
589 if (!isatty(STDIN_FILENO)) {
590 opt_request = REQ_VIEW_PAGER;
593 } else if (i < argc || altargc > 0) {
597 if (opt_request == REQ_VIEW_MAIN)
598 /* XXX: This is vulnerable to the user overriding
599 * options required for the main view parser. */
600 string_copy(opt_cmd, "git log --no-color --pretty=raw --boundary --parents");
602 string_format(opt_cmd, "git %s", subcommand);
603 buf_size = strlen(opt_cmd);
605 while (buf_size < sizeof(opt_cmd) && alti < altargc) {
606 opt_cmd[buf_size++] = ' ';
607 buf_size = sq_quote(opt_cmd, buf_size, altargv[alti++]);
610 while (buf_size < sizeof(opt_cmd) && i < argc) {
611 opt_cmd[buf_size++] = ' ';
612 buf_size = sq_quote(opt_cmd, buf_size, argv[i++]);
615 if (buf_size >= sizeof(opt_cmd))
616 die("command too long");
618 opt_cmd[buf_size] = 0;
626 * Line-oriented content detection.
630 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
631 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
632 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
633 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
634 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
635 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
636 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
637 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
638 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
639 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
640 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
641 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
642 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
643 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
644 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
645 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
646 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
647 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
648 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
649 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
650 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
651 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
652 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
653 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
654 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
655 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
656 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
657 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
658 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
659 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
660 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
661 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
662 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
663 LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
664 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
665 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
666 LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
667 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
668 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
669 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
670 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
671 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
672 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
673 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
674 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
675 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
676 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
677 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
678 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
679 LINE(BLAME_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
680 LINE(BLAME_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
681 LINE(BLAME_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
682 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
683 LINE(BLAME_LINENO, "", COLOR_CYAN, COLOR_DEFAULT, 0)
686 #define LINE(type, line, fg, bg, attr) \
693 const char *name; /* Option name. */
694 int namelen; /* Size of option name. */
695 const char *line; /* The start of line to match. */
696 int linelen; /* Size of string to match. */
697 int fg, bg, attr; /* Color and text attributes for the lines. */
700 static struct line_info line_info[] = {
701 #define LINE(type, line, fg, bg, attr) \
702 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
707 static enum line_type
708 get_line_type(char *line)
710 int linelen = strlen(line);
713 for (type = 0; type < ARRAY_SIZE(line_info); type++)
714 /* Case insensitive search matches Signed-off-by lines better. */
715 if (linelen >= line_info[type].linelen &&
716 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
723 get_line_attr(enum line_type type)
725 assert(type < ARRAY_SIZE(line_info));
726 return COLOR_PAIR(type) | line_info[type].attr;
729 static struct line_info *
730 get_line_info(char *name, int namelen)
734 for (type = 0; type < ARRAY_SIZE(line_info); type++)
735 if (namelen == line_info[type].namelen &&
736 !string_enum_compare(line_info[type].name, name, namelen))
737 return &line_info[type];
745 int default_bg = line_info[LINE_DEFAULT].bg;
746 int default_fg = line_info[LINE_DEFAULT].fg;
751 if (assume_default_colors(default_fg, default_bg) == ERR) {
752 default_bg = COLOR_BLACK;
753 default_fg = COLOR_WHITE;
756 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
757 struct line_info *info = &line_info[type];
758 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
759 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
761 init_pair(type, fg, bg);
769 unsigned int selected:1;
770 unsigned int dirty:1;
772 void *data; /* User data */
782 enum request request;
783 struct keybinding *next;
786 static struct keybinding default_keybindings[] = {
788 { 'm', REQ_VIEW_MAIN },
789 { 'd', REQ_VIEW_DIFF },
790 { 'l', REQ_VIEW_LOG },
791 { 't', REQ_VIEW_TREE },
792 { 'f', REQ_VIEW_BLOB },
793 { 'B', REQ_VIEW_BLAME },
794 { 'p', REQ_VIEW_PAGER },
795 { 'h', REQ_VIEW_HELP },
796 { 'S', REQ_VIEW_STATUS },
797 { 'c', REQ_VIEW_STAGE },
799 /* View manipulation */
800 { 'q', REQ_VIEW_CLOSE },
801 { KEY_TAB, REQ_VIEW_NEXT },
802 { KEY_RETURN, REQ_ENTER },
803 { KEY_UP, REQ_PREVIOUS },
804 { KEY_DOWN, REQ_NEXT },
805 { 'R', REQ_REFRESH },
807 /* Cursor navigation */
808 { 'k', REQ_MOVE_UP },
809 { 'j', REQ_MOVE_DOWN },
810 { KEY_HOME, REQ_MOVE_FIRST_LINE },
811 { KEY_END, REQ_MOVE_LAST_LINE },
812 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
813 { ' ', REQ_MOVE_PAGE_DOWN },
814 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
815 { 'b', REQ_MOVE_PAGE_UP },
816 { '-', REQ_MOVE_PAGE_UP },
819 { KEY_IC, REQ_SCROLL_LINE_UP },
820 { KEY_DC, REQ_SCROLL_LINE_DOWN },
821 { 'w', REQ_SCROLL_PAGE_UP },
822 { 's', REQ_SCROLL_PAGE_DOWN },
826 { '?', REQ_SEARCH_BACK },
827 { 'n', REQ_FIND_NEXT },
828 { 'N', REQ_FIND_PREV },
832 { 'z', REQ_STOP_LOADING },
833 { 'v', REQ_SHOW_VERSION },
834 { 'r', REQ_SCREEN_REDRAW },
835 { '.', REQ_TOGGLE_LINENO },
836 { 'D', REQ_TOGGLE_DATE },
837 { 'A', REQ_TOGGLE_AUTHOR },
838 { 'g', REQ_TOGGLE_REV_GRAPH },
839 { 'F', REQ_TOGGLE_REFS },
841 { 'u', REQ_STATUS_UPDATE },
842 { 'M', REQ_STATUS_MERGE },
843 { ',', REQ_TREE_PARENT },
846 /* Using the ncurses SIGWINCH handler. */
847 { KEY_RESIZE, REQ_SCREEN_RESIZE },
850 #define KEYMAP_INFO \
864 #define KEYMAP_(name) KEYMAP_##name
869 static struct int_map keymap_table[] = {
870 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
875 #define set_keymap(map, name) \
876 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
878 static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)];
881 add_keybinding(enum keymap keymap, enum request request, int key)
883 struct keybinding *keybinding;
885 keybinding = calloc(1, sizeof(*keybinding));
887 die("Failed to allocate keybinding");
889 keybinding->alias = key;
890 keybinding->request = request;
891 keybinding->next = keybindings[keymap];
892 keybindings[keymap] = keybinding;
895 /* Looks for a key binding first in the given map, then in the generic map, and
896 * lastly in the default keybindings. */
898 get_keybinding(enum keymap keymap, int key)
900 struct keybinding *kbd;
903 for (kbd = keybindings[keymap]; kbd; kbd = kbd->next)
904 if (kbd->alias == key)
907 for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next)
908 if (kbd->alias == key)
911 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
912 if (default_keybindings[i].alias == key)
913 return default_keybindings[i].request;
915 return (enum request) key;
924 static struct key key_table[] = {
925 { "Enter", KEY_RETURN },
927 { "Backspace", KEY_BACKSPACE },
929 { "Escape", KEY_ESC },
930 { "Left", KEY_LEFT },
931 { "Right", KEY_RIGHT },
933 { "Down", KEY_DOWN },
934 { "Insert", KEY_IC },
935 { "Delete", KEY_DC },
937 { "Home", KEY_HOME },
939 { "PageUp", KEY_PPAGE },
940 { "PageDown", KEY_NPAGE },
950 { "F10", KEY_F(10) },
951 { "F11", KEY_F(11) },
952 { "F12", KEY_F(12) },
956 get_key_value(const char *name)
960 for (i = 0; i < ARRAY_SIZE(key_table); i++)
961 if (!strcasecmp(key_table[i].name, name))
962 return key_table[i].value;
964 if (strlen(name) == 1 && isprint(*name))
971 get_key_name(int key_value)
973 static char key_char[] = "'X'";
977 for (key = 0; key < ARRAY_SIZE(key_table); key++)
978 if (key_table[key].value == key_value)
979 seq = key_table[key].name;
983 isprint(key_value)) {
984 key_char[1] = (char) key_value;
988 return seq ? seq : "'?'";
992 get_key(enum request request)
994 static char buf[BUFSIZ];
1001 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1002 struct keybinding *keybinding = &default_keybindings[i];
1004 if (keybinding->request != request)
1007 if (!string_format_from(buf, &pos, "%s%s", sep,
1008 get_key_name(keybinding->alias)))
1009 return "Too many keybindings!";
1016 struct run_request {
1019 char cmd[SIZEOF_STR];
1022 static struct run_request *run_request;
1023 static size_t run_requests;
1026 add_run_request(enum keymap keymap, int key, int argc, char **argv)
1028 struct run_request *tmp;
1029 struct run_request req = { keymap, key };
1032 for (bufpos = 0; argc > 0; argc--, argv++)
1033 if (!string_format_from(req.cmd, &bufpos, "%s ", *argv))
1036 req.cmd[bufpos - 1] = 0;
1038 tmp = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1043 run_request[run_requests++] = req;
1045 return REQ_NONE + run_requests;
1048 static struct run_request *
1049 get_run_request(enum request request)
1051 if (request <= REQ_NONE)
1053 return &run_request[request - REQ_NONE - 1];
1057 add_builtin_run_requests(void)
1064 { KEYMAP_MAIN, 'C', { "git cherry-pick %(commit)" } },
1065 { KEYMAP_GENERIC, 'G', { "git gc" } },
1069 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1072 req = add_run_request(reqs[i].keymap, reqs[i].key, 1, reqs[i].argv);
1073 if (req != REQ_NONE)
1074 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1079 * User config file handling.
1082 static struct int_map color_map[] = {
1083 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1095 #define set_color(color, name) \
1096 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1098 static struct int_map attr_map[] = {
1099 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1106 ATTR_MAP(UNDERLINE),
1109 #define set_attribute(attr, name) \
1110 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1112 static int config_lineno;
1113 static bool config_errors;
1114 static char *config_msg;
1116 /* Wants: object fgcolor bgcolor [attr] */
1118 option_color_command(int argc, char *argv[])
1120 struct line_info *info;
1122 if (argc != 3 && argc != 4) {
1123 config_msg = "Wrong number of arguments given to color command";
1127 info = get_line_info(argv[0], strlen(argv[0]));
1129 config_msg = "Unknown color name";
1133 if (set_color(&info->fg, argv[1]) == ERR ||
1134 set_color(&info->bg, argv[2]) == ERR) {
1135 config_msg = "Unknown color";
1139 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1140 config_msg = "Unknown attribute";
1147 static bool parse_bool(const char *s)
1149 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1150 !strcmp(s, "yes")) ? TRUE : FALSE;
1153 /* Wants: name = value */
1155 option_set_command(int argc, char *argv[])
1158 config_msg = "Wrong number of arguments given to set command";
1162 if (strcmp(argv[1], "=")) {
1163 config_msg = "No value assigned";
1167 if (!strcmp(argv[0], "show-author")) {
1168 opt_author = parse_bool(argv[2]);
1172 if (!strcmp(argv[0], "show-date")) {
1173 opt_date = parse_bool(argv[2]);
1177 if (!strcmp(argv[0], "show-rev-graph")) {
1178 opt_rev_graph = parse_bool(argv[2]);
1182 if (!strcmp(argv[0], "show-refs")) {
1183 opt_show_refs = parse_bool(argv[2]);
1187 if (!strcmp(argv[0], "show-line-numbers")) {
1188 opt_line_number = parse_bool(argv[2]);
1192 if (!strcmp(argv[0], "line-number-interval")) {
1193 opt_num_interval = atoi(argv[2]);
1197 if (!strcmp(argv[0], "tab-size")) {
1198 opt_tab_size = atoi(argv[2]);
1202 if (!strcmp(argv[0], "commit-encoding")) {
1203 char *arg = argv[2];
1204 int delimiter = *arg;
1207 switch (delimiter) {
1210 for (arg++, i = 0; arg[i]; i++)
1211 if (arg[i] == delimiter) {
1216 string_ncopy(opt_encoding, arg, strlen(arg));
1221 config_msg = "Unknown variable name";
1225 /* Wants: mode request key */
1227 option_bind_command(int argc, char *argv[])
1229 enum request request;
1234 config_msg = "Wrong number of arguments given to bind command";
1238 if (set_keymap(&keymap, argv[0]) == ERR) {
1239 config_msg = "Unknown key map";
1243 key = get_key_value(argv[1]);
1245 config_msg = "Unknown key";
1249 request = get_request(argv[2]);
1250 if (request == REQ_NONE) {
1251 const char *obsolete[] = { "cherry-pick" };
1252 size_t namelen = strlen(argv[2]);
1255 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1256 if (namelen == strlen(obsolete[i]) &&
1257 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1258 config_msg = "Obsolete request name";
1263 if (request == REQ_NONE && *argv[2]++ == '!')
1264 request = add_run_request(keymap, key, argc - 2, argv + 2);
1265 if (request == REQ_NONE) {
1266 config_msg = "Unknown request name";
1270 add_keybinding(keymap, request, key);
1276 set_option(char *opt, char *value)
1283 while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) {
1284 argv[argc++] = value;
1287 /* Nothing more to tokenize or last available token. */
1288 if (!*value || argc >= ARRAY_SIZE(argv))
1292 while (isspace(*value))
1296 if (!strcmp(opt, "color"))
1297 return option_color_command(argc, argv);
1299 if (!strcmp(opt, "set"))
1300 return option_set_command(argc, argv);
1302 if (!strcmp(opt, "bind"))
1303 return option_bind_command(argc, argv);
1305 config_msg = "Unknown option command";
1310 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1315 config_msg = "Internal error";
1317 /* Check for comment markers, since read_properties() will
1318 * only ensure opt and value are split at first " \t". */
1319 optlen = strcspn(opt, "#");
1323 if (opt[optlen] != 0) {
1324 config_msg = "No option value";
1328 /* Look for comment endings in the value. */
1329 size_t len = strcspn(value, "#");
1331 if (len < valuelen) {
1333 value[valuelen] = 0;
1336 status = set_option(opt, value);
1339 if (status == ERR) {
1340 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1341 config_lineno, (int) optlen, opt, config_msg);
1342 config_errors = TRUE;
1345 /* Always keep going if errors are encountered. */
1350 load_option_file(const char *path)
1354 /* It's ok that the file doesn't exist. */
1355 file = fopen(path, "r");
1360 config_errors = FALSE;
1362 if (read_properties(file, " \t", read_option) == ERR ||
1363 config_errors == TRUE)
1364 fprintf(stderr, "Errors while loading %s.\n", path);
1370 char *home = getenv("HOME");
1371 char *tigrc_user = getenv("TIGRC_USER");
1372 char *tigrc_system = getenv("TIGRC_SYSTEM");
1373 char buf[SIZEOF_STR];
1375 add_builtin_run_requests();
1377 if (!tigrc_system) {
1378 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1382 load_option_file(tigrc_system);
1385 if (!home || !string_format(buf, "%s/.tigrc", home))
1389 load_option_file(tigrc_user);
1402 /* The display array of active views and the index of the current view. */
1403 static struct view *display[2];
1404 static unsigned int current_view;
1406 /* Reading from the prompt? */
1407 static bool input_mode = FALSE;
1409 #define foreach_displayed_view(view, i) \
1410 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1412 #define displayed_views() (display[1] != NULL ? 2 : 1)
1414 /* Current head and commit ID */
1415 static char ref_blob[SIZEOF_REF] = "";
1416 static char ref_commit[SIZEOF_REF] = "HEAD";
1417 static char ref_head[SIZEOF_REF] = "HEAD";
1420 const char *name; /* View name */
1421 const char *cmd_fmt; /* Default command line format */
1422 const char *cmd_env; /* Command line set via environment */
1423 const char *id; /* Points to either of ref_{head,commit,blob} */
1425 struct view_ops *ops; /* View operations */
1427 enum keymap keymap; /* What keymap does this view have */
1429 char cmd[SIZEOF_STR]; /* Command buffer */
1430 char ref[SIZEOF_REF]; /* Hovered commit reference */
1431 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1433 int height, width; /* The width and height of the main window */
1434 WINDOW *win; /* The main window */
1435 WINDOW *title; /* The title window living below the main window */
1438 unsigned long offset; /* Offset of the window top */
1439 unsigned long lineno; /* Current line number */
1442 char grep[SIZEOF_STR]; /* Search string */
1443 regex_t *regex; /* Pre-compiled regex */
1445 /* If non-NULL, points to the view that opened this view. If this view
1446 * is closed tig will switch back to the parent view. */
1447 struct view *parent;
1450 size_t lines; /* Total number of lines */
1451 struct line *line; /* Line index */
1452 size_t line_alloc; /* Total number of allocated lines */
1453 size_t line_size; /* Total number of used lines */
1454 unsigned int digits; /* Number of digits in the lines member. */
1462 /* What type of content being displayed. Used in the title bar. */
1464 /* Open and reads in all view content. */
1465 bool (*open)(struct view *view);
1466 /* Read one line; updates view->line. */
1467 bool (*read)(struct view *view, char *data);
1468 /* Draw one line; @lineno must be < view->height. */
1469 bool (*draw)(struct view *view, struct line *line, unsigned int lineno, bool selected);
1470 /* Depending on view handle a special requests. */
1471 enum request (*request)(struct view *view, enum request request, struct line *line);
1472 /* Search for regex in a line. */
1473 bool (*grep)(struct view *view, struct line *line);
1475 void (*select)(struct view *view, struct line *line);
1478 static struct view_ops pager_ops;
1479 static struct view_ops main_ops;
1480 static struct view_ops tree_ops;
1481 static struct view_ops blob_ops;
1482 static struct view_ops blame_ops;
1483 static struct view_ops help_ops;
1484 static struct view_ops status_ops;
1485 static struct view_ops stage_ops;
1487 #define VIEW_STR(name, cmd, env, ref, ops, map) \
1488 { name, cmd, #env, ref, ops, map}
1490 #define VIEW_(id, name, ops, ref) \
1491 VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id)
1494 static struct view views[] = {
1495 VIEW_(MAIN, "main", &main_ops, ref_head),
1496 VIEW_(DIFF, "diff", &pager_ops, ref_commit),
1497 VIEW_(LOG, "log", &pager_ops, ref_head),
1498 VIEW_(TREE, "tree", &tree_ops, ref_commit),
1499 VIEW_(BLOB, "blob", &blob_ops, ref_blob),
1500 VIEW_(BLAME, "blame", &blame_ops, ref_commit),
1501 VIEW_(HELP, "help", &help_ops, ""),
1502 VIEW_(PAGER, "pager", &pager_ops, "stdin"),
1503 VIEW_(STATUS, "status", &status_ops, ""),
1504 VIEW_(STAGE, "stage", &stage_ops, ""),
1507 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1509 #define foreach_view(view, i) \
1510 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1512 #define view_is_displayed(view) \
1513 (view == display[0] || view == display[1])
1516 draw_text(struct view *view, const char *string, int max_len,
1517 bool use_tilde, int tilde_attr)
1520 int trimmed = FALSE;
1526 len = utf8_length(string, max_len, &trimmed, use_tilde);
1528 len = strlen(string);
1529 if (len > max_len) {
1538 waddnstr(view->win, string, len);
1539 if (trimmed && use_tilde) {
1540 if (tilde_attr != -1)
1541 wattrset(view->win, tilde_attr);
1542 waddch(view->win, '~');
1550 draw_view_line(struct view *view, unsigned int lineno)
1553 bool selected = (view->offset + lineno == view->lineno);
1556 assert(view_is_displayed(view));
1558 if (view->offset + lineno >= view->lines)
1561 line = &view->line[view->offset + lineno];
1564 line->selected = TRUE;
1565 view->ops->select(view, line);
1566 } else if (line->selected) {
1567 line->selected = FALSE;
1568 wmove(view->win, lineno, 0);
1569 wclrtoeol(view->win);
1572 scrollok(view->win, FALSE);
1573 draw_ok = view->ops->draw(view, line, lineno, selected);
1574 scrollok(view->win, TRUE);
1580 redraw_view_dirty(struct view *view)
1585 for (lineno = 0; lineno < view->height; lineno++) {
1586 struct line *line = &view->line[view->offset + lineno];
1592 if (!draw_view_line(view, lineno))
1598 redrawwin(view->win);
1600 wnoutrefresh(view->win);
1602 wrefresh(view->win);
1606 redraw_view_from(struct view *view, int lineno)
1608 assert(0 <= lineno && lineno < view->height);
1610 for (; lineno < view->height; lineno++) {
1611 if (!draw_view_line(view, lineno))
1615 redrawwin(view->win);
1617 wnoutrefresh(view->win);
1619 wrefresh(view->win);
1623 redraw_view(struct view *view)
1626 redraw_view_from(view, 0);
1631 update_view_title(struct view *view)
1633 char buf[SIZEOF_STR];
1634 char state[SIZEOF_STR];
1635 size_t bufpos = 0, statelen = 0;
1637 assert(view_is_displayed(view));
1639 if (view != VIEW(REQ_VIEW_STATUS) && (view->lines || view->pipe)) {
1640 unsigned int view_lines = view->offset + view->height;
1641 unsigned int lines = view->lines
1642 ? MIN(view_lines, view->lines) * 100 / view->lines
1645 string_format_from(state, &statelen, "- %s %d of %d (%d%%)",
1652 time_t secs = time(NULL) - view->start_time;
1654 /* Three git seconds are a long time ... */
1656 string_format_from(state, &statelen, " %lds", secs);
1660 string_format_from(buf, &bufpos, "[%s]", view->name);
1661 if (*view->ref && bufpos < view->width) {
1662 size_t refsize = strlen(view->ref);
1663 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
1665 if (minsize < view->width)
1666 refsize = view->width - minsize + 7;
1667 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
1670 if (statelen && bufpos < view->width) {
1671 string_format_from(buf, &bufpos, " %s", state);
1674 if (view == display[current_view])
1675 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
1677 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
1679 mvwaddnstr(view->title, 0, 0, buf, bufpos);
1680 wclrtoeol(view->title);
1681 wmove(view->title, 0, view->width - 1);
1684 wnoutrefresh(view->title);
1686 wrefresh(view->title);
1690 resize_display(void)
1693 struct view *base = display[0];
1694 struct view *view = display[1] ? display[1] : display[0];
1696 /* Setup window dimensions */
1698 getmaxyx(stdscr, base->height, base->width);
1700 /* Make room for the status window. */
1704 /* Horizontal split. */
1705 view->width = base->width;
1706 view->height = SCALE_SPLIT_VIEW(base->height);
1707 base->height -= view->height;
1709 /* Make room for the title bar. */
1713 /* Make room for the title bar. */
1718 foreach_displayed_view (view, i) {
1720 view->win = newwin(view->height, 0, offset, 0);
1722 die("Failed to create %s view", view->name);
1724 scrollok(view->win, TRUE);
1726 view->title = newwin(1, 0, offset + view->height, 0);
1728 die("Failed to create title window");
1731 wresize(view->win, view->height, view->width);
1732 mvwin(view->win, offset, 0);
1733 mvwin(view->title, offset + view->height, 0);
1736 offset += view->height + 1;
1741 redraw_display(void)
1746 foreach_displayed_view (view, i) {
1748 update_view_title(view);
1753 update_display_cursor(struct view *view)
1755 /* Move the cursor to the right-most column of the cursor line.
1757 * XXX: This could turn out to be a bit expensive, but it ensures that
1758 * the cursor does not jump around. */
1760 wmove(view->win, view->lineno - view->offset, view->width - 1);
1761 wrefresh(view->win);
1769 /* Scrolling backend */
1771 do_scroll_view(struct view *view, int lines)
1773 bool redraw_current_line = FALSE;
1775 /* The rendering expects the new offset. */
1776 view->offset += lines;
1778 assert(0 <= view->offset && view->offset < view->lines);
1781 /* Move current line into the view. */
1782 if (view->lineno < view->offset) {
1783 view->lineno = view->offset;
1784 redraw_current_line = TRUE;
1785 } else if (view->lineno >= view->offset + view->height) {
1786 view->lineno = view->offset + view->height - 1;
1787 redraw_current_line = TRUE;
1790 assert(view->offset <= view->lineno && view->lineno < view->lines);
1792 /* Redraw the whole screen if scrolling is pointless. */
1793 if (view->height < ABS(lines)) {
1797 int line = lines > 0 ? view->height - lines : 0;
1798 int end = line + ABS(lines);
1800 wscrl(view->win, lines);
1802 for (; line < end; line++) {
1803 if (!draw_view_line(view, line))
1807 if (redraw_current_line)
1808 draw_view_line(view, view->lineno - view->offset);
1811 redrawwin(view->win);
1812 wrefresh(view->win);
1816 /* Scroll frontend */
1818 scroll_view(struct view *view, enum request request)
1822 assert(view_is_displayed(view));
1825 case REQ_SCROLL_PAGE_DOWN:
1826 lines = view->height;
1827 case REQ_SCROLL_LINE_DOWN:
1828 if (view->offset + lines > view->lines)
1829 lines = view->lines - view->offset;
1831 if (lines == 0 || view->offset + view->height >= view->lines) {
1832 report("Cannot scroll beyond the last line");
1837 case REQ_SCROLL_PAGE_UP:
1838 lines = view->height;
1839 case REQ_SCROLL_LINE_UP:
1840 if (lines > view->offset)
1841 lines = view->offset;
1844 report("Cannot scroll beyond the first line");
1852 die("request %d not handled in switch", request);
1855 do_scroll_view(view, lines);
1860 move_view(struct view *view, enum request request)
1862 int scroll_steps = 0;
1866 case REQ_MOVE_FIRST_LINE:
1867 steps = -view->lineno;
1870 case REQ_MOVE_LAST_LINE:
1871 steps = view->lines - view->lineno - 1;
1874 case REQ_MOVE_PAGE_UP:
1875 steps = view->height > view->lineno
1876 ? -view->lineno : -view->height;
1879 case REQ_MOVE_PAGE_DOWN:
1880 steps = view->lineno + view->height >= view->lines
1881 ? view->lines - view->lineno - 1 : view->height;
1893 die("request %d not handled in switch", request);
1896 if (steps <= 0 && view->lineno == 0) {
1897 report("Cannot move beyond the first line");
1900 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
1901 report("Cannot move beyond the last line");
1905 /* Move the current line */
1906 view->lineno += steps;
1907 assert(0 <= view->lineno && view->lineno < view->lines);
1909 /* Check whether the view needs to be scrolled */
1910 if (view->lineno < view->offset ||
1911 view->lineno >= view->offset + view->height) {
1912 scroll_steps = steps;
1913 if (steps < 0 && -steps > view->offset) {
1914 scroll_steps = -view->offset;
1916 } else if (steps > 0) {
1917 if (view->lineno == view->lines - 1 &&
1918 view->lines > view->height) {
1919 scroll_steps = view->lines - view->offset - 1;
1920 if (scroll_steps >= view->height)
1921 scroll_steps -= view->height - 1;
1926 if (!view_is_displayed(view)) {
1927 view->offset += scroll_steps;
1928 assert(0 <= view->offset && view->offset < view->lines);
1929 view->ops->select(view, &view->line[view->lineno]);
1933 /* Repaint the old "current" line if we be scrolling */
1934 if (ABS(steps) < view->height)
1935 draw_view_line(view, view->lineno - steps - view->offset);
1938 do_scroll_view(view, scroll_steps);
1942 /* Draw the current line */
1943 draw_view_line(view, view->lineno - view->offset);
1945 redrawwin(view->win);
1946 wrefresh(view->win);
1955 static void search_view(struct view *view, enum request request);
1958 find_next_line(struct view *view, unsigned long lineno, struct line *line)
1960 assert(view_is_displayed(view));
1962 if (!view->ops->grep(view, line))
1965 if (lineno - view->offset >= view->height) {
1966 view->offset = lineno;
1967 view->lineno = lineno;
1971 unsigned long old_lineno = view->lineno - view->offset;
1973 view->lineno = lineno;
1974 draw_view_line(view, old_lineno);
1976 draw_view_line(view, view->lineno - view->offset);
1977 redrawwin(view->win);
1978 wrefresh(view->win);
1981 report("Line %ld matches '%s'", lineno + 1, view->grep);
1986 find_next(struct view *view, enum request request)
1988 unsigned long lineno = view->lineno;
1993 report("No previous search");
1995 search_view(view, request);
2005 case REQ_SEARCH_BACK:
2014 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2015 lineno += direction;
2017 /* Note, lineno is unsigned long so will wrap around in which case it
2018 * will become bigger than view->lines. */
2019 for (; lineno < view->lines; lineno += direction) {
2020 struct line *line = &view->line[lineno];
2022 if (find_next_line(view, lineno, line))
2026 report("No match found for '%s'", view->grep);
2030 search_view(struct view *view, enum request request)
2035 regfree(view->regex);
2038 view->regex = calloc(1, sizeof(*view->regex));
2043 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2044 if (regex_err != 0) {
2045 char buf[SIZEOF_STR] = "unknown error";
2047 regerror(regex_err, view->regex, buf, sizeof(buf));
2048 report("Search failed: %s", buf);
2052 string_copy(view->grep, opt_search);
2054 find_next(view, request);
2058 * Incremental updating
2062 end_update(struct view *view)
2066 set_nonblocking_input(FALSE);
2067 if (view->pipe == stdin)
2075 begin_update(struct view *view)
2081 string_copy(view->cmd, opt_cmd);
2083 /* When running random commands, initially show the
2084 * command in the title. However, it maybe later be
2085 * overwritten if a commit line is selected. */
2086 if (view == VIEW(REQ_VIEW_PAGER))
2087 string_copy(view->ref, view->cmd);
2091 } else if (view == VIEW(REQ_VIEW_TREE)) {
2092 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2093 char path[SIZEOF_STR];
2095 if (strcmp(view->vid, view->id))
2096 opt_path[0] = path[0] = 0;
2097 else if (sq_quote(path, 0, opt_path) >= sizeof(path))
2100 if (!string_format(view->cmd, format, view->id, path))
2104 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2105 const char *id = view->id;
2107 if (!string_format(view->cmd, format, id, id, id, id, id))
2110 /* Put the current ref_* value to the view title ref
2111 * member. This is needed by the blob view. Most other
2112 * views sets it automatically after loading because the
2113 * first line is a commit line. */
2114 string_copy_rev(view->ref, view->id);
2117 /* Special case for the pager view. */
2119 view->pipe = opt_pipe;
2122 view->pipe = popen(view->cmd, "r");
2128 set_nonblocking_input(TRUE);
2133 string_copy_rev(view->vid, view->id);
2138 for (i = 0; i < view->lines; i++)
2139 if (view->line[i].data)
2140 free(view->line[i].data);
2146 view->start_time = time(NULL);
2151 #define ITEM_CHUNK_SIZE 256
2153 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2155 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2156 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2158 if (mem == NULL || num_chunks != num_chunks_new) {
2159 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2160 mem = realloc(mem, *size * item_size);
2166 static struct line *
2167 realloc_lines(struct view *view, size_t line_size)
2169 size_t alloc = view->line_alloc;
2170 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2171 sizeof(*view->line));
2177 view->line_alloc = alloc;
2178 view->line_size = line_size;
2183 update_view(struct view *view)
2185 char in_buffer[BUFSIZ];
2186 char out_buffer[BUFSIZ * 2];
2188 /* The number of lines to read. If too low it will cause too much
2189 * redrawing (and possible flickering), if too high responsiveness
2191 unsigned long lines = view->height;
2192 int redraw_from = -1;
2197 /* Only redraw if lines are visible. */
2198 if (view->offset + view->height >= view->lines)
2199 redraw_from = view->lines - view->offset;
2201 /* FIXME: This is probably not perfect for backgrounded views. */
2202 if (!realloc_lines(view, view->lines + lines))
2205 while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) {
2206 size_t linelen = strlen(line);
2209 line[linelen - 1] = 0;
2211 if (opt_iconv != ICONV_NONE) {
2212 ICONV_CONST char *inbuf = line;
2213 size_t inlen = linelen;
2215 char *outbuf = out_buffer;
2216 size_t outlen = sizeof(out_buffer);
2220 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2221 if (ret != (size_t) -1) {
2223 linelen = strlen(out_buffer);
2227 if (!view->ops->read(view, line))
2237 lines = view->lines;
2238 for (digits = 0; lines; digits++)
2241 /* Keep the displayed view in sync with line number scaling. */
2242 if (digits != view->digits) {
2243 view->digits = digits;
2248 if (!view_is_displayed(view))
2251 if (view == VIEW(REQ_VIEW_TREE)) {
2252 /* Clear the view and redraw everything since the tree sorting
2253 * might have rearranged things. */
2257 } else if (redraw_from >= 0) {
2258 /* If this is an incremental update, redraw the previous line
2259 * since for commits some members could have changed when
2260 * loading the main view. */
2261 if (redraw_from > 0)
2264 /* Since revision graph visualization requires knowledge
2265 * about the parent commit, it causes a further one-off
2266 * needed to be redrawn for incremental updates. */
2267 if (redraw_from > 0 && opt_rev_graph)
2270 /* Incrementally draw avoids flickering. */
2271 redraw_view_from(view, redraw_from);
2274 if (view == VIEW(REQ_VIEW_BLAME))
2275 redraw_view_dirty(view);
2277 /* Update the title _after_ the redraw so that if the redraw picks up a
2278 * commit reference in view->ref it'll be available here. */
2279 update_view_title(view);
2282 if (ferror(view->pipe)) {
2283 report("Failed to read: %s", strerror(errno));
2286 } else if (feof(view->pipe)) {
2294 report("Allocation failure");
2297 if (view->ops->read(view, NULL))
2302 static struct line *
2303 add_line_data(struct view *view, void *data, enum line_type type)
2305 struct line *line = &view->line[view->lines++];
2307 memset(line, 0, sizeof(*line));
2314 static struct line *
2315 add_line_text(struct view *view, char *data, enum line_type type)
2318 data = strdup(data);
2320 return data ? add_line_data(view, data, type) : NULL;
2329 OPEN_DEFAULT = 0, /* Use default view switching. */
2330 OPEN_SPLIT = 1, /* Split current view. */
2331 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2332 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2336 open_view(struct view *prev, enum request request, enum open_flags flags)
2338 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2339 bool split = !!(flags & OPEN_SPLIT);
2340 bool reload = !!(flags & OPEN_RELOAD);
2341 struct view *view = VIEW(request);
2342 int nviews = displayed_views();
2343 struct view *base_view = display[0];
2345 if (view == prev && nviews == 1 && !reload) {
2346 report("Already in %s view", view->name);
2350 if (view->ops->open) {
2351 if (!view->ops->open(view)) {
2352 report("Failed to load %s view", view->name);
2356 } else if ((reload || strcmp(view->vid, view->id)) &&
2357 !begin_update(view)) {
2358 report("Failed to load %s view", view->name);
2367 /* Maximize the current view. */
2368 memset(display, 0, sizeof(display));
2370 display[current_view] = view;
2373 /* Resize the view when switching between split- and full-screen,
2374 * or when switching between two different full-screen views. */
2375 if (nviews != displayed_views() ||
2376 (nviews == 1 && base_view != display[0]))
2379 if (split && prev->lineno - prev->offset >= prev->height) {
2380 /* Take the title line into account. */
2381 int lines = prev->lineno - prev->offset - prev->height + 1;
2383 /* Scroll the view that was split if the current line is
2384 * outside the new limited view. */
2385 do_scroll_view(prev, lines);
2388 if (prev && view != prev) {
2389 if (split && !backgrounded) {
2390 /* "Blur" the previous view. */
2391 update_view_title(prev);
2394 view->parent = prev;
2397 if (view->pipe && view->lines == 0) {
2398 /* Clear the old view and let the incremental updating refill
2407 /* If the view is backgrounded the above calls to report()
2408 * won't redraw the view title. */
2410 update_view_title(view);
2414 open_external_viewer(const char *cmd)
2416 def_prog_mode(); /* save current tty modes */
2417 endwin(); /* restore original tty modes */
2419 fprintf(stderr, "Press Enter to continue");
2426 open_mergetool(const char *file)
2428 char cmd[SIZEOF_STR];
2429 char file_sq[SIZEOF_STR];
2431 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2432 string_format(cmd, "git mergetool %s", file_sq)) {
2433 open_external_viewer(cmd);
2438 open_editor(bool from_root, const char *file)
2440 char cmd[SIZEOF_STR];
2441 char file_sq[SIZEOF_STR];
2443 char *prefix = from_root ? opt_cdup : "";
2445 editor = getenv("GIT_EDITOR");
2446 if (!editor && *opt_editor)
2447 editor = opt_editor;
2449 editor = getenv("VISUAL");
2451 editor = getenv("EDITOR");
2455 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2456 string_format(cmd, "%s %s%s", editor, prefix, file_sq)) {
2457 open_external_viewer(cmd);
2462 open_run_request(enum request request)
2464 struct run_request *req = get_run_request(request);
2465 char buf[SIZEOF_STR * 2];
2470 report("Unknown run request");
2478 char *next = strstr(cmd, "%(");
2479 int len = next - cmd;
2486 } else if (!strncmp(next, "%(head)", 7)) {
2489 } else if (!strncmp(next, "%(commit)", 9)) {
2492 } else if (!strncmp(next, "%(blob)", 7)) {
2496 report("Unknown replacement in run request: `%s`", req->cmd);
2500 if (!string_format_from(buf, &bufpos, "%.*s%s", len, cmd, value))
2504 next = strchr(next, ')') + 1;
2508 open_external_viewer(buf);
2512 * User request switch noodle
2516 view_driver(struct view *view, enum request request)
2520 if (request == REQ_NONE) {
2525 if (request > REQ_NONE) {
2526 open_run_request(request);
2530 if (view && view->lines) {
2531 request = view->ops->request(view, request, &view->line[view->lineno]);
2532 if (request == REQ_NONE)
2539 case REQ_MOVE_PAGE_UP:
2540 case REQ_MOVE_PAGE_DOWN:
2541 case REQ_MOVE_FIRST_LINE:
2542 case REQ_MOVE_LAST_LINE:
2543 move_view(view, request);
2546 case REQ_SCROLL_LINE_DOWN:
2547 case REQ_SCROLL_LINE_UP:
2548 case REQ_SCROLL_PAGE_DOWN:
2549 case REQ_SCROLL_PAGE_UP:
2550 scroll_view(view, request);
2553 case REQ_VIEW_BLAME:
2555 report("No file chosen, press %s to open tree view",
2556 get_key(REQ_VIEW_TREE));
2559 open_view(view, request, OPEN_DEFAULT);
2564 report("No file chosen, press %s to open tree view",
2565 get_key(REQ_VIEW_TREE));
2568 open_view(view, request, OPEN_DEFAULT);
2571 case REQ_VIEW_PAGER:
2572 if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2573 report("No pager content, press %s to run command from prompt",
2574 get_key(REQ_PROMPT));
2577 open_view(view, request, OPEN_DEFAULT);
2580 case REQ_VIEW_STAGE:
2581 if (!VIEW(REQ_VIEW_STAGE)->lines) {
2582 report("No stage content, press %s to open the status view and choose file",
2583 get_key(REQ_VIEW_STATUS));
2586 open_view(view, request, OPEN_DEFAULT);
2589 case REQ_VIEW_STATUS:
2590 if (opt_is_inside_work_tree == FALSE) {
2591 report("The status view requires a working tree");
2594 open_view(view, request, OPEN_DEFAULT);
2602 open_view(view, request, OPEN_DEFAULT);
2607 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2609 if ((view == VIEW(REQ_VIEW_DIFF) &&
2610 view->parent == VIEW(REQ_VIEW_MAIN)) ||
2611 (view == VIEW(REQ_VIEW_DIFF) &&
2612 view->parent == VIEW(REQ_VIEW_BLAME)) ||
2613 (view == VIEW(REQ_VIEW_STAGE) &&
2614 view->parent == VIEW(REQ_VIEW_STATUS)) ||
2615 (view == VIEW(REQ_VIEW_BLOB) &&
2616 view->parent == VIEW(REQ_VIEW_TREE))) {
2619 view = view->parent;
2620 line = view->lineno;
2621 move_view(view, request);
2622 if (view_is_displayed(view))
2623 update_view_title(view);
2624 if (line != view->lineno)
2625 view->ops->request(view, REQ_ENTER,
2626 &view->line[view->lineno]);
2629 move_view(view, request);
2635 int nviews = displayed_views();
2636 int next_view = (current_view + 1) % nviews;
2638 if (next_view == current_view) {
2639 report("Only one view is displayed");
2643 current_view = next_view;
2644 /* Blur out the title of the previous view. */
2645 update_view_title(view);
2650 report("Refreshing is not yet supported for the %s view", view->name);
2653 case REQ_TOGGLE_LINENO:
2654 opt_line_number = !opt_line_number;
2658 case REQ_TOGGLE_DATE:
2659 opt_date = !opt_date;
2663 case REQ_TOGGLE_AUTHOR:
2664 opt_author = !opt_author;
2668 case REQ_TOGGLE_REV_GRAPH:
2669 opt_rev_graph = !opt_rev_graph;
2673 case REQ_TOGGLE_REFS:
2674 opt_show_refs = !opt_show_refs;
2679 /* Always reload^Wrerun commands from the prompt. */
2680 open_view(view, opt_request, OPEN_RELOAD);
2684 case REQ_SEARCH_BACK:
2685 search_view(view, request);
2690 find_next(view, request);
2693 case REQ_STOP_LOADING:
2694 for (i = 0; i < ARRAY_SIZE(views); i++) {
2697 report("Stopped loading the %s view", view->name),
2702 case REQ_SHOW_VERSION:
2703 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
2706 case REQ_SCREEN_RESIZE:
2709 case REQ_SCREEN_REDRAW:
2714 report("Nothing to edit");
2719 report("Nothing to enter");
2723 case REQ_VIEW_CLOSE:
2724 /* XXX: Mark closed views by letting view->parent point to the
2725 * view itself. Parents to closed view should never be
2728 view->parent->parent != view->parent) {
2729 memset(display, 0, sizeof(display));
2731 display[current_view] = view->parent;
2732 view->parent = view;
2742 /* An unknown key will show most commonly used commands. */
2743 report("Unknown key, press 'h' for help");
2756 pager_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
2758 char *text = line->data;
2759 enum line_type type = line->type;
2762 wmove(view->win, lineno, 0);
2766 wchgat(view->win, -1, 0, type, NULL);
2769 attr = get_line_attr(type);
2770 wattrset(view->win, attr);
2772 if (opt_line_number || opt_tab_size < TABSIZE) {
2773 static char spaces[] = " ";
2774 int col_offset = 0, col = 0;
2776 if (opt_line_number) {
2777 unsigned long real_lineno = view->offset + lineno + 1;
2779 if (real_lineno == 1 ||
2780 (real_lineno % opt_num_interval) == 0) {
2781 wprintw(view->win, "%.*d", view->digits, real_lineno);
2784 waddnstr(view->win, spaces,
2785 MIN(view->digits, STRING_SIZE(spaces)));
2787 waddstr(view->win, ": ");
2788 col_offset = view->digits + 2;
2791 while (text && col_offset + col < view->width) {
2792 int cols_max = view->width - col_offset - col;
2796 if (*text == '\t') {
2798 assert(sizeof(spaces) > TABSIZE);
2800 cols = opt_tab_size - (col % opt_tab_size);
2803 text = strchr(text, '\t');
2804 cols = line ? text - pos : strlen(pos);
2807 waddnstr(view->win, pos, MIN(cols, cols_max));
2812 int tilde_attr = get_line_attr(LINE_MAIN_DELIM);
2814 draw_text(view, text, view->width, TRUE, tilde_attr);
2821 add_describe_ref(char *buf, size_t *bufpos, char *commit_id, const char *sep)
2823 char refbuf[SIZEOF_STR];
2827 if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id))
2830 pipe = popen(refbuf, "r");
2834 if ((ref = fgets(refbuf, sizeof(refbuf), pipe)))
2835 ref = chomp_string(ref);
2841 /* This is the only fatal call, since it can "corrupt" the buffer. */
2842 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
2849 add_pager_refs(struct view *view, struct line *line)
2851 char buf[SIZEOF_STR];
2852 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
2854 size_t bufpos = 0, refpos = 0;
2855 const char *sep = "Refs: ";
2856 bool is_tag = FALSE;
2858 assert(line->type == LINE_COMMIT);
2860 refs = get_refs(commit_id);
2862 if (view == VIEW(REQ_VIEW_DIFF))
2863 goto try_add_describe_ref;
2868 struct ref *ref = refs[refpos];
2869 char *fmt = ref->tag ? "%s[%s]" :
2870 ref->remote ? "%s<%s>" : "%s%s";
2872 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
2877 } while (refs[refpos++]->next);
2879 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
2880 try_add_describe_ref:
2881 /* Add <tag>-g<commit_id> "fake" reference. */
2882 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
2889 if (!realloc_lines(view, view->line_size + 1))
2892 add_line_text(view, buf, LINE_PP_REFS);
2896 pager_read(struct view *view, char *data)
2903 line = add_line_text(view, data, get_line_type(data));
2907 if (line->type == LINE_COMMIT &&
2908 (view == VIEW(REQ_VIEW_DIFF) ||
2909 view == VIEW(REQ_VIEW_LOG)))
2910 add_pager_refs(view, line);
2916 pager_request(struct view *view, enum request request, struct line *line)
2920 if (request != REQ_ENTER)
2923 if (line->type == LINE_COMMIT &&
2924 (view == VIEW(REQ_VIEW_LOG) ||
2925 view == VIEW(REQ_VIEW_PAGER))) {
2926 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
2930 /* Always scroll the view even if it was split. That way
2931 * you can use Enter to scroll through the log view and
2932 * split open each commit diff. */
2933 scroll_view(view, REQ_SCROLL_LINE_DOWN);
2935 /* FIXME: A minor workaround. Scrolling the view will call report("")
2936 * but if we are scrolling a non-current view this won't properly
2937 * update the view title. */
2939 update_view_title(view);
2945 pager_grep(struct view *view, struct line *line)
2948 char *text = line->data;
2953 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
2960 pager_select(struct view *view, struct line *line)
2962 if (line->type == LINE_COMMIT) {
2963 char *text = (char *)line->data + STRING_SIZE("commit ");
2965 if (view != VIEW(REQ_VIEW_PAGER))
2966 string_copy_rev(view->ref, text);
2967 string_copy_rev(ref_commit, text);
2971 static struct view_ops pager_ops = {
2987 help_open(struct view *view)
2990 int lines = ARRAY_SIZE(req_info) + 2;
2993 if (view->lines > 0)
2996 for (i = 0; i < ARRAY_SIZE(req_info); i++)
2997 if (!req_info[i].request)
3000 lines += run_requests + 1;
3002 view->line = calloc(lines, sizeof(*view->line));
3006 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3008 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3011 if (req_info[i].request == REQ_NONE)
3014 if (!req_info[i].request) {
3015 add_line_text(view, "", LINE_DEFAULT);
3016 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3020 key = get_key(req_info[i].request);
3022 key = "(no key defined)";
3024 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
3027 add_line_text(view, buf, LINE_DEFAULT);
3031 add_line_text(view, "", LINE_DEFAULT);
3032 add_line_text(view, "External commands:", LINE_DEFAULT);
3035 for (i = 0; i < run_requests; i++) {
3036 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3042 key = get_key_name(req->key);
3044 key = "(no key defined)";
3046 if (!string_format(buf, " %-10s %-14s `%s`",
3047 keymap_table[req->keymap].name,
3051 add_line_text(view, buf, LINE_DEFAULT);
3057 static struct view_ops help_ops = {
3072 struct tree_stack_entry {
3073 struct tree_stack_entry *prev; /* Entry below this in the stack */
3074 unsigned long lineno; /* Line number to restore */
3075 char *name; /* Position of name in opt_path */
3078 /* The top of the path stack. */
3079 static struct tree_stack_entry *tree_stack = NULL;
3080 unsigned long tree_lineno = 0;
3083 pop_tree_stack_entry(void)
3085 struct tree_stack_entry *entry = tree_stack;
3087 tree_lineno = entry->lineno;
3089 tree_stack = entry->prev;
3094 push_tree_stack_entry(char *name, unsigned long lineno)
3096 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3097 size_t pathlen = strlen(opt_path);
3102 entry->prev = tree_stack;
3103 entry->name = opt_path + pathlen;
3106 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3107 pop_tree_stack_entry();
3111 /* Move the current line to the first tree entry. */
3113 entry->lineno = lineno;
3116 /* Parse output from git-ls-tree(1):
3118 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3119 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3120 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3121 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3124 #define SIZEOF_TREE_ATTR \
3125 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3127 #define TREE_UP_FORMAT "040000 tree %s\t.."
3130 tree_compare_entry(enum line_type type1, char *name1,
3131 enum line_type type2, char *name2)
3133 if (type1 != type2) {
3134 if (type1 == LINE_TREE_DIR)
3139 return strcmp(name1, name2);
3143 tree_path(struct line *line)
3145 char *path = line->data;
3147 return path + SIZEOF_TREE_ATTR;
3151 tree_read(struct view *view, char *text)
3153 size_t textlen = text ? strlen(text) : 0;
3154 char buf[SIZEOF_STR];
3156 enum line_type type;
3157 bool first_read = view->lines == 0;
3161 if (textlen <= SIZEOF_TREE_ATTR)
3164 type = text[STRING_SIZE("100644 ")] == 't'
3165 ? LINE_TREE_DIR : LINE_TREE_FILE;
3168 /* Add path info line */
3169 if (!string_format(buf, "Directory path /%s", opt_path) ||
3170 !realloc_lines(view, view->line_size + 1) ||
3171 !add_line_text(view, buf, LINE_DEFAULT))
3174 /* Insert "link" to parent directory. */
3176 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
3177 !realloc_lines(view, view->line_size + 1) ||
3178 !add_line_text(view, buf, LINE_TREE_DIR))
3183 /* Strip the path part ... */
3185 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3186 size_t striplen = strlen(opt_path);
3187 char *path = text + SIZEOF_TREE_ATTR;
3189 if (pathlen > striplen)
3190 memmove(path, path + striplen,
3191 pathlen - striplen + 1);
3194 /* Skip "Directory ..." and ".." line. */
3195 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
3196 struct line *line = &view->line[pos];
3197 char *path1 = tree_path(line);
3198 char *path2 = text + SIZEOF_TREE_ATTR;
3199 int cmp = tree_compare_entry(line->type, path1, type, path2);
3204 text = strdup(text);
3208 if (view->lines > pos)
3209 memmove(&view->line[pos + 1], &view->line[pos],
3210 (view->lines - pos) * sizeof(*line));
3212 line = &view->line[pos];
3219 if (!add_line_text(view, text, type))
3222 if (tree_lineno > view->lineno) {
3223 view->lineno = tree_lineno;
3231 tree_request(struct view *view, enum request request, struct line *line)
3233 enum open_flags flags;
3235 if (request == REQ_VIEW_BLAME) {
3236 char *filename = tree_path(line);
3238 if (line->type == LINE_TREE_DIR) {
3239 report("Cannot show blame for directory %s", opt_path);
3243 string_copy(opt_ref, ref_commit);
3244 string_ncopy(opt_file, filename, strlen(filename));
3247 if (request == REQ_TREE_PARENT) {
3250 request = REQ_ENTER;
3251 line = &view->line[1];
3253 /* quit view if at top of tree */
3254 return REQ_VIEW_CLOSE;
3257 if (request != REQ_ENTER)
3260 /* Cleanup the stack if the tree view is at a different tree. */
3261 while (!*opt_path && tree_stack)
3262 pop_tree_stack_entry();
3264 switch (line->type) {
3266 /* Depending on whether it is a subdir or parent (updir?) link
3267 * mangle the path buffer. */
3268 if (line == &view->line[1] && *opt_path) {
3269 pop_tree_stack_entry();
3272 char *basename = tree_path(line);
3274 push_tree_stack_entry(basename, view->lineno);
3277 /* Trees and subtrees share the same ID, so they are not not
3278 * unique like blobs. */
3279 flags = OPEN_RELOAD;
3280 request = REQ_VIEW_TREE;
3283 case LINE_TREE_FILE:
3284 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3285 request = REQ_VIEW_BLOB;
3292 open_view(view, request, flags);
3293 if (request == REQ_VIEW_TREE) {
3294 view->lineno = tree_lineno;
3301 tree_select(struct view *view, struct line *line)
3303 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3305 if (line->type == LINE_TREE_FILE) {
3306 string_copy_rev(ref_blob, text);
3308 } else if (line->type != LINE_TREE_DIR) {
3312 string_copy_rev(view->ref, text);
3315 static struct view_ops tree_ops = {
3326 blob_read(struct view *view, char *line)
3330 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3333 static struct view_ops blob_ops = {
3346 * Loading the blame view is a two phase job:
3348 * 1. File content is read either using opt_file from the
3349 * filesystem or using git-cat-file.
3350 * 2. Then blame information is incrementally added by
3351 * reading output from git-blame.
3354 struct blame_commit {
3355 char id[SIZEOF_REV]; /* SHA1 ID. */
3356 char title[128]; /* First line of the commit message. */
3357 char author[75]; /* Author of the commit. */
3358 struct tm time; /* Date from the author ident. */
3359 char filename[128]; /* Name of file. */
3363 struct blame_commit *commit;
3364 unsigned int header:1;
3368 #define BLAME_CAT_FILE_CMD "git cat-file blob %s:%s"
3369 #define BLAME_INCREMENTAL_CMD "git blame --incremental %s %s"
3372 blame_open(struct view *view)
3374 char path[SIZEOF_STR];
3375 char ref[SIZEOF_STR] = "";
3377 if (sq_quote(path, 0, opt_file) >= sizeof(path))
3380 if (*opt_ref && sq_quote(ref, 0, opt_ref) >= sizeof(ref))
3384 if (!string_format(view->cmd, BLAME_CAT_FILE_CMD, ref, path))
3387 view->pipe = fopen(opt_file, "r");
3389 !string_format(view->cmd, BLAME_CAT_FILE_CMD, "HEAD", path))
3394 view->pipe = popen(view->cmd, "r");
3398 if (!string_format(view->cmd, BLAME_INCREMENTAL_CMD, ref, path))
3401 string_format(view->ref, "%s ...", opt_file);
3402 string_copy_rev(view->vid, opt_file);
3403 set_nonblocking_input(TRUE);
3408 for (i = 0; i < view->lines; i++)
3409 free(view->line[i].data);
3413 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
3414 view->offset = view->lines = view->lineno = 0;
3416 view->start_time = time(NULL);
3421 static struct blame_commit *
3422 get_blame_commit(struct view *view, const char *id)
3426 for (i = 0; i < view->lines; i++) {
3427 struct blame *blame = view->line[i].data;
3432 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3433 return blame->commit;
3437 struct blame_commit *commit = calloc(1, sizeof(*commit));
3440 string_ncopy(commit->id, id, SIZEOF_REV);
3446 parse_number(char **posref, size_t *number, size_t min, size_t max)
3448 char *pos = *posref;
3451 pos = strchr(pos + 1, ' ');
3452 if (!pos || !isdigit(pos[1]))
3454 *number = atoi(pos + 1);
3455 if (*number < min || *number > max)
3462 static struct blame_commit *
3463 parse_blame_commit(struct view *view, char *text, int *blamed)
3465 struct blame_commit *commit;
3466 struct blame *blame;
3467 char *pos = text + SIZEOF_REV - 1;
3471 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3474 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3475 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3478 commit = get_blame_commit(view, text);
3484 struct line *line = &view->line[lineno + group - 1];
3487 blame->commit = commit;
3496 blame_read_file(struct view *view, char *line)
3501 if (view->lines > 0)
3502 pipe = popen(view->cmd, "r");
3505 report("Failed to load blame data");
3514 size_t linelen = strlen(line);
3515 struct blame *blame = malloc(sizeof(*blame) + linelen);
3520 blame->commit = NULL;
3521 strncpy(blame->text, line, linelen);
3522 blame->text[linelen] = 0;
3523 return add_line_data(view, blame, LINE_BLAME_COMMIT) != NULL;
3528 match_blame_header(const char *name, char **line)
3530 size_t namelen = strlen(name);
3531 bool matched = !strncmp(name, *line, namelen);
3540 blame_read(struct view *view, char *line)
3542 static struct blame_commit *commit = NULL;
3543 static int blamed = 0;
3544 static time_t author_time;
3547 return blame_read_file(view, line);
3553 string_format(view->ref, "%s", view->vid);
3554 if (view_is_displayed(view)) {
3555 update_view_title(view);
3556 redraw_view_from(view, 0);
3562 commit = parse_blame_commit(view, line, &blamed);
3563 string_format(view->ref, "%s %2d%%", view->vid,
3564 blamed * 100 / view->lines);
3566 } else if (match_blame_header("author ", &line)) {
3567 string_ncopy(commit->author, line, strlen(line));
3569 } else if (match_blame_header("author-time ", &line)) {
3570 author_time = (time_t) atol(line);
3572 } else if (match_blame_header("author-tz ", &line)) {
3575 tz = ('0' - line[1]) * 60 * 60 * 10;
3576 tz += ('0' - line[2]) * 60 * 60;
3577 tz += ('0' - line[3]) * 60;
3578 tz += ('0' - line[4]) * 60;
3584 gmtime_r(&author_time, &commit->time);
3586 } else if (match_blame_header("summary ", &line)) {
3587 string_ncopy(commit->title, line, strlen(line));
3589 } else if (match_blame_header("filename ", &line)) {
3590 string_ncopy(commit->filename, line, strlen(line));
3598 blame_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
3600 int tilde_attr = -1;
3601 struct blame *blame = line->data;
3604 wmove(view->win, lineno, 0);
3607 wattrset(view->win, get_line_attr(LINE_CURSOR));
3608 wchgat(view->win, -1, 0, LINE_CURSOR, NULL);
3610 wattrset(view->win, A_NORMAL);
3611 tilde_attr = get_line_attr(LINE_MAIN_DELIM);
3618 wattrset(view->win, get_line_attr(LINE_MAIN_DATE));
3619 if (blame->commit) {
3620 char buf[DATE_COLS + 1];
3623 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &blame->commit->time);
3624 n = draw_text(view, buf, view->width - col, FALSE, tilde_attr);
3625 draw_text(view, " ", view->width - col - n, FALSE, tilde_attr);
3629 wmove(view->win, lineno, col);
3630 if (col >= view->width)
3635 int max = MIN(AUTHOR_COLS - 1, view->width - col);
3638 wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR));
3640 draw_text(view, blame->commit->author, max, TRUE, tilde_attr);
3642 if (col >= view->width)
3644 wmove(view->win, lineno, col);
3648 int max = MIN(ID_COLS - 1, view->width - col);
3651 wattrset(view->win, get_line_attr(LINE_BLAME_ID));
3653 draw_text(view, blame->commit->id, max, FALSE, -1);
3655 if (col >= view->width)
3657 wmove(view->win, lineno, col);
3661 unsigned long real_lineno = view->offset + lineno + 1;
3662 char number[10] = " ";
3663 int max = MIN(view->digits, STRING_SIZE(number));
3664 bool showtrimmed = FALSE;
3666 if (real_lineno == 1 ||
3667 (real_lineno % opt_num_interval) == 0) {
3668 char fmt[] = "%1ld";
3670 if (view->digits <= 9)
3671 fmt[1] = '0' + view->digits;
3673 if (!string_format(number, fmt, real_lineno))
3678 if (max > view->width - col)
3679 max = view->width - col;
3681 wattrset(view->win, get_line_attr(LINE_BLAME_LINENO));
3682 col += draw_text(view, number, max, showtrimmed, tilde_attr);
3683 if (col >= view->width)
3688 wattrset(view->win, A_NORMAL);
3690 if (col >= view->width)
3692 waddch(view->win, ACS_VLINE);
3694 if (col >= view->width)
3696 waddch(view->win, ' ');
3698 col += draw_text(view, blame->text, view->width - col, TRUE, tilde_attr);
3704 blame_request(struct view *view, enum request request, struct line *line)
3706 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3707 struct blame *blame = line->data;
3711 if (!blame->commit) {
3712 report("No commit loaded yet");
3716 if (!strcmp(blame->commit->id, "0000000000000000000000000000000000000000")) {
3717 char path[SIZEOF_STR];
3719 if (sq_quote(path, 0, view->vid) >= sizeof(path))
3721 string_format(opt_cmd, "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s 2>/dev/null", path);
3724 open_view(view, REQ_VIEW_DIFF, flags);
3735 blame_grep(struct view *view, struct line *line)
3737 struct blame *blame = line->data;
3738 struct blame_commit *commit = blame->commit;
3741 #define MATCH(text) \
3742 (*text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3745 char buf[DATE_COLS + 1];
3747 if (MATCH(commit->title) ||
3748 MATCH(commit->author) ||
3752 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
3757 return MATCH(blame->text);
3763 blame_select(struct view *view, struct line *line)
3765 struct blame *blame = line->data;
3766 struct blame_commit *commit = blame->commit;
3771 if (!strcmp(commit->id, "0000000000000000000000000000000000000000"))
3772 string_ncopy(ref_commit, "HEAD", 4);
3774 string_copy_rev(ref_commit, commit->id);
3777 static struct view_ops blame_ops = {
3795 char rev[SIZEOF_REV];
3796 char name[SIZEOF_STR];
3800 char rev[SIZEOF_REV];
3801 char name[SIZEOF_STR];
3805 static struct status stage_status;
3806 static enum line_type stage_line_type;
3808 /* Get fields from the diff line:
3809 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3812 status_get_diff(struct status *file, char *buf, size_t bufsize)
3814 char *old_mode = buf + 1;
3815 char *new_mode = buf + 8;
3816 char *old_rev = buf + 15;
3817 char *new_rev = buf + 56;
3818 char *status = buf + 97;
3821 old_mode[-1] != ':' ||
3822 new_mode[-1] != ' ' ||
3823 old_rev[-1] != ' ' ||
3824 new_rev[-1] != ' ' ||
3828 file->status = *status;
3830 string_copy_rev(file->old.rev, old_rev);
3831 string_copy_rev(file->new.rev, new_rev);
3833 file->old.mode = strtoul(old_mode, NULL, 8);
3834 file->new.mode = strtoul(new_mode, NULL, 8);
3836 file->old.name[0] = file->new.name[0] = 0;
3842 status_run(struct view *view, const char cmd[], bool diff, enum line_type type)
3844 struct status *file = NULL;
3845 struct status *unmerged = NULL;
3846 char buf[SIZEOF_STR * 4];
3850 pipe = popen(cmd, "r");
3854 add_line_data(view, NULL, type);
3856 while (!feof(pipe) && !ferror(pipe)) {
3860 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3863 bufsize += readsize;
3865 /* Process while we have NUL chars. */
3866 while ((sep = memchr(buf, 0, bufsize))) {
3867 size_t sepsize = sep - buf + 1;
3870 if (!realloc_lines(view, view->line_size + 1))
3873 file = calloc(1, sizeof(*file));
3877 add_line_data(view, file, type);
3880 /* Parse diff info part. */
3884 } else if (!file->status) {
3885 if (!status_get_diff(file, buf, sepsize))
3889 memmove(buf, sep + 1, bufsize);
3891 sep = memchr(buf, 0, bufsize);
3894 sepsize = sep - buf + 1;
3896 /* Collapse all 'M'odified entries that
3897 * follow a associated 'U'nmerged entry.
3899 if (file->status == 'U') {
3902 } else if (unmerged) {
3903 int collapse = !strcmp(buf, unmerged->new.name);
3914 /* Grab the old name for rename/copy. */
3915 if (!*file->old.name &&
3916 (file->status == 'R' || file->status == 'C')) {
3917 sepsize = sep - buf + 1;
3918 string_ncopy(file->old.name, buf, sepsize);
3920 memmove(buf, sep + 1, bufsize);
3922 sep = memchr(buf, 0, bufsize);
3925 sepsize = sep - buf + 1;
3928 /* git-ls-files just delivers a NUL separated
3929 * list of file names similar to the second half
3930 * of the git-diff-* output. */
3931 string_ncopy(file->new.name, buf, sepsize);
3932 if (!*file->old.name)
3933 string_copy(file->old.name, file->new.name);
3935 memmove(buf, sep + 1, bufsize);
3946 if (!view->line[view->lines - 1].data)
3947 add_line_data(view, NULL, LINE_STAT_NONE);
3953 /* Don't show unmerged entries in the staged section. */
3954 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD"
3955 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
3956 #define STATUS_LIST_OTHER_CMD \
3957 "git ls-files -z --others --exclude-per-directory=.gitignore"
3959 #define STATUS_DIFF_INDEX_SHOW_CMD \
3960 "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null"
3962 #define STATUS_DIFF_FILES_SHOW_CMD \
3963 "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null"
3965 /* First parse staged info using git-diff-index(1), then parse unstaged
3966 * info using git-diff-files(1), and finally untracked files using
3967 * git-ls-files(1). */
3969 status_open(struct view *view)
3971 struct stat statbuf;
3972 char exclude[SIZEOF_STR];
3973 char cmd[SIZEOF_STR];
3974 unsigned long prev_lineno = view->lineno;
3977 for (i = 0; i < view->lines; i++)
3978 free(view->line[i].data);
3980 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
3983 if (!realloc_lines(view, view->line_size + 6))
3986 if (!string_format(exclude, "%s/info/exclude", opt_git_dir))
3989 string_copy(cmd, STATUS_LIST_OTHER_CMD);
3991 if (stat(exclude, &statbuf) >= 0) {
3992 size_t cmdsize = strlen(cmd);
3994 if (!string_format_from(cmd, &cmdsize, " %s", "--exclude-from=") ||
3995 sq_quote(cmd, cmdsize, exclude) >= sizeof(cmd))
3999 system("git update-index -q --refresh");
4001 if (!status_run(view, STATUS_DIFF_INDEX_CMD, TRUE, LINE_STAT_STAGED) ||
4002 !status_run(view, STATUS_DIFF_FILES_CMD, TRUE, LINE_STAT_UNSTAGED) ||
4003 !status_run(view, cmd, FALSE, LINE_STAT_UNTRACKED))
4006 /* If all went well restore the previous line number to stay in
4008 if (prev_lineno < view->lines)
4009 view->lineno = prev_lineno;
4011 view->lineno = view->lines - 1;
4017 status_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
4019 struct status *status = line->data;
4020 int tilde_attr = get_line_attr(LINE_MAIN_DELIM);
4022 wmove(view->win, lineno, 0);
4025 wattrset(view->win, get_line_attr(LINE_CURSOR));
4026 wchgat(view->win, -1, 0, LINE_CURSOR, NULL);
4029 } else if (!status && line->type != LINE_STAT_NONE) {
4030 wattrset(view->win, get_line_attr(LINE_STAT_SECTION));
4031 wchgat(view->win, -1, 0, LINE_STAT_SECTION, NULL);
4034 wattrset(view->win, get_line_attr(line->type));
4040 switch (line->type) {
4041 case LINE_STAT_STAGED:
4042 text = "Changes to be committed:";
4045 case LINE_STAT_UNSTAGED:
4046 text = "Changed but not updated:";
4049 case LINE_STAT_UNTRACKED:
4050 text = "Untracked files:";
4053 case LINE_STAT_NONE:
4054 text = " (no files)";
4061 draw_text(view, text, view->width, TRUE, tilde_attr);
4065 waddch(view->win, status->status);
4067 wattrset(view->win, A_NORMAL);
4068 wmove(view->win, lineno, 4);
4069 if (view->width < 5)
4072 draw_text(view, status->new.name, view->width - 5, TRUE, tilde_attr);
4077 status_enter(struct view *view, struct line *line)
4079 struct status *status = line->data;
4080 char oldpath[SIZEOF_STR] = "";
4081 char newpath[SIZEOF_STR] = "";
4085 if (line->type == LINE_STAT_NONE ||
4086 (!status && line[1].type == LINE_STAT_NONE)) {
4087 report("No file to diff");
4092 if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath))
4094 /* Diffs for unmerged entries are empty when pasing the
4095 * new path, so leave it empty. */
4096 if (status->status != 'U' &&
4097 sq_quote(newpath, 0, status->new.name) >= sizeof(newpath))
4102 line->type != LINE_STAT_UNTRACKED &&
4103 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
4106 switch (line->type) {
4107 case LINE_STAT_STAGED:
4108 if (!string_format_from(opt_cmd, &cmdsize,
4109 STATUS_DIFF_INDEX_SHOW_CMD, oldpath, newpath))
4112 info = "Staged changes to %s";
4114 info = "Staged changes";
4117 case LINE_STAT_UNSTAGED:
4118 if (!string_format_from(opt_cmd, &cmdsize,
4119 STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath))
4122 info = "Unstaged changes to %s";
4124 info = "Unstaged changes";
4127 case LINE_STAT_UNTRACKED:
4133 report("No file to show");
4137 opt_pipe = fopen(status->new.name, "r");
4138 info = "Untracked file %s";
4142 die("line type %d not handled in switch", line->type);
4145 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | OPEN_SPLIT);
4146 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4148 stage_status = *status;
4150 memset(&stage_status, 0, sizeof(stage_status));
4153 stage_line_type = line->type;
4154 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4162 status_update_file(struct view *view, struct status *status, enum line_type type)
4164 char cmd[SIZEOF_STR];
4165 char buf[SIZEOF_STR];
4172 type != LINE_STAT_UNTRACKED &&
4173 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4177 case LINE_STAT_STAGED:
4178 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4181 status->old.name, 0))
4184 string_add(cmd, cmdsize, "git update-index -z --index-info");
4187 case LINE_STAT_UNSTAGED:
4188 case LINE_STAT_UNTRACKED:
4189 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4192 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
4196 die("line type %d not handled in switch", type);
4199 pipe = popen(cmd, "w");
4203 while (!ferror(pipe) && written < bufsize) {
4204 written += fwrite(buf + written, 1, bufsize - written, pipe);
4209 if (written != bufsize)
4216 status_update(struct view *view)
4218 struct line *line = &view->line[view->lineno];
4220 assert(view->lines);
4223 while (++line < view->line + view->lines && line->data) {
4224 if (!status_update_file(view, line->data, line->type))
4225 report("Failed to update file status");
4228 if (!line[-1].data) {
4229 report("Nothing to update");
4233 } else if (!status_update_file(view, line->data, line->type)) {
4234 report("Failed to update file status");
4239 status_request(struct view *view, enum request request, struct line *line)
4241 struct status *status = line->data;
4244 case REQ_STATUS_UPDATE:
4245 status_update(view);
4248 case REQ_STATUS_MERGE:
4249 if (!status || status->status != 'U') {
4250 report("Merging only possible for files with unmerged status ('U').");
4253 open_mergetool(status->new.name);
4260 open_editor(status->status != '?', status->new.name);
4263 case REQ_VIEW_BLAME:
4265 string_copy(opt_file, status->new.name);
4271 /* After returning the status view has been split to
4272 * show the stage view. No further reloading is
4274 status_enter(view, line);
4278 /* Simply reload the view. */
4285 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4291 status_select(struct view *view, struct line *line)
4293 struct status *status = line->data;
4294 char file[SIZEOF_STR] = "all files";
4298 if (status && !string_format(file, "'%s'", status->new.name))
4301 if (!status && line[1].type == LINE_STAT_NONE)
4304 switch (line->type) {
4305 case LINE_STAT_STAGED:
4306 text = "Press %s to unstage %s for commit";
4309 case LINE_STAT_UNSTAGED:
4310 text = "Press %s to stage %s for commit";
4313 case LINE_STAT_UNTRACKED:
4314 text = "Press %s to stage %s for addition";
4317 case LINE_STAT_NONE:
4318 text = "Nothing to update";
4322 die("line type %d not handled in switch", line->type);
4325 if (status && status->status == 'U') {
4326 text = "Press %s to resolve conflict in %s";
4327 key = get_key(REQ_STATUS_MERGE);
4330 key = get_key(REQ_STATUS_UPDATE);
4333 string_format(view->ref, text, key, file);
4337 status_grep(struct view *view, struct line *line)
4339 struct status *status = line->data;
4340 enum { S_STATUS, S_NAME, S_END } state;
4347 for (state = S_STATUS; state < S_END; state++) {
4351 case S_NAME: text = status->new.name; break;
4353 buf[0] = status->status;
4361 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4368 static struct view_ops status_ops = {
4380 stage_diff_line(FILE *pipe, struct line *line)
4382 char *buf = line->data;
4383 size_t bufsize = strlen(buf);
4386 while (!ferror(pipe) && written < bufsize) {
4387 written += fwrite(buf + written, 1, bufsize - written, pipe);
4392 return written == bufsize;
4395 static struct line *
4396 stage_diff_hdr(struct view *view, struct line *line)
4398 int diff_hdr_dir = line->type == LINE_DIFF_CHUNK ? -1 : 1;
4399 struct line *diff_hdr;
4401 if (line->type == LINE_DIFF_CHUNK)
4402 diff_hdr = line - 1;
4404 diff_hdr = view->line + 1;
4406 while (diff_hdr > view->line && diff_hdr < view->line + view->lines) {
4407 if (diff_hdr->type == LINE_DIFF_HEADER)
4410 diff_hdr += diff_hdr_dir;
4417 stage_update_chunk(struct view *view, struct line *line)
4419 char cmd[SIZEOF_STR];
4421 struct line *diff_hdr, *diff_chunk, *diff_end;
4424 diff_hdr = stage_diff_hdr(view, line);
4429 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4432 if (!string_format_from(cmd, &cmdsize,
4433 "git apply --cached %s - && "
4434 "git update-index -q --unmerged --refresh 2>/dev/null",
4435 stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
4438 pipe = popen(cmd, "w");
4442 diff_end = view->line + view->lines;
4443 if (line->type != LINE_DIFF_CHUNK) {
4444 diff_chunk = diff_hdr;
4447 for (diff_chunk = line + 1; diff_chunk < diff_end; diff_chunk++)
4448 if (diff_chunk->type == LINE_DIFF_CHUNK ||
4449 diff_chunk->type == LINE_DIFF_HEADER)
4450 diff_end = diff_chunk;
4454 while (diff_hdr->type != LINE_DIFF_CHUNK) {
4455 switch (diff_hdr->type) {
4456 case LINE_DIFF_HEADER:
4457 case LINE_DIFF_INDEX:
4467 if (!stage_diff_line(pipe, diff_hdr++)) {
4474 while (diff_chunk < diff_end && stage_diff_line(pipe, diff_chunk))
4479 if (diff_chunk != diff_end)
4486 stage_update(struct view *view, struct line *line)
4488 if (stage_line_type != LINE_STAT_UNTRACKED &&
4489 (line->type == LINE_DIFF_CHUNK || !stage_status.status)) {
4490 if (!stage_update_chunk(view, line)) {
4491 report("Failed to apply chunk");
4495 } else if (!status_update_file(view, &stage_status, stage_line_type)) {
4496 report("Failed to update file");
4500 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4502 view = VIEW(REQ_VIEW_STATUS);
4503 if (view_is_displayed(view))
4504 status_enter(view, &view->line[view->lineno]);
4508 stage_request(struct view *view, enum request request, struct line *line)
4511 case REQ_STATUS_UPDATE:
4512 stage_update(view, line);
4516 if (!stage_status.new.name[0])
4519 open_editor(stage_status.status != '?', stage_status.new.name);
4522 case REQ_VIEW_BLAME:
4523 if (stage_status.new.name[0]) {
4524 string_copy(opt_file, stage_status.new.name);
4530 pager_request(view, request, line);
4540 static struct view_ops stage_ops = {
4556 char id[SIZEOF_REV]; /* SHA1 ID. */
4557 char title[128]; /* First line of the commit message. */
4558 char author[75]; /* Author of the commit. */
4559 struct tm time; /* Date from the author ident. */
4560 struct ref **refs; /* Repository references. */
4561 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
4562 size_t graph_size; /* The width of the graph array. */
4563 bool has_parents; /* Rewritten --parents seen. */
4566 /* Size of rev graph with no "padding" columns */
4567 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
4570 struct rev_graph *prev, *next, *parents;
4571 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
4573 struct commit *commit;
4575 unsigned int boundary:1;
4578 /* Parents of the commit being visualized. */
4579 static struct rev_graph graph_parents[4];
4581 /* The current stack of revisions on the graph. */
4582 static struct rev_graph graph_stacks[4] = {
4583 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
4584 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
4585 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
4586 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
4590 graph_parent_is_merge(struct rev_graph *graph)
4592 return graph->parents->size > 1;
4596 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
4598 struct commit *commit = graph->commit;
4600 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
4601 commit->graph[commit->graph_size++] = symbol;
4605 done_rev_graph(struct rev_graph *graph)
4607 if (graph_parent_is_merge(graph) &&
4608 graph->pos < graph->size - 1 &&
4609 graph->next->size == graph->size + graph->parents->size - 1) {
4610 size_t i = graph->pos + graph->parents->size - 1;
4612 graph->commit->graph_size = i * 2;
4613 while (i < graph->next->size - 1) {
4614 append_to_rev_graph(graph, ' ');
4615 append_to_rev_graph(graph, '\\');
4620 graph->size = graph->pos = 0;
4621 graph->commit = NULL;
4622 memset(graph->parents, 0, sizeof(*graph->parents));
4626 push_rev_graph(struct rev_graph *graph, char *parent)
4630 /* "Collapse" duplicate parents lines.
4632 * FIXME: This needs to also update update the drawn graph but
4633 * for now it just serves as a method for pruning graph lines. */
4634 for (i = 0; i < graph->size; i++)
4635 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
4638 if (graph->size < SIZEOF_REVITEMS) {
4639 string_copy_rev(graph->rev[graph->size++], parent);
4644 get_rev_graph_symbol(struct rev_graph *graph)
4648 if (graph->boundary)
4649 symbol = REVGRAPH_BOUND;
4650 else if (graph->parents->size == 0)
4651 symbol = REVGRAPH_INIT;
4652 else if (graph_parent_is_merge(graph))
4653 symbol = REVGRAPH_MERGE;
4654 else if (graph->pos >= graph->size)
4655 symbol = REVGRAPH_BRANCH;
4657 symbol = REVGRAPH_COMMIT;
4663 draw_rev_graph(struct rev_graph *graph)
4666 chtype separator, line;
4668 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
4669 static struct rev_filler fillers[] = {
4670 { ' ', REVGRAPH_LINE },
4675 chtype symbol = get_rev_graph_symbol(graph);
4676 struct rev_filler *filler;
4679 filler = &fillers[DEFAULT];
4681 for (i = 0; i < graph->pos; i++) {
4682 append_to_rev_graph(graph, filler->line);
4683 if (graph_parent_is_merge(graph->prev) &&
4684 graph->prev->pos == i)
4685 filler = &fillers[RSHARP];
4687 append_to_rev_graph(graph, filler->separator);
4690 /* Place the symbol for this revision. */
4691 append_to_rev_graph(graph, symbol);
4693 if (graph->prev->size > graph->size)
4694 filler = &fillers[RDIAG];
4696 filler = &fillers[DEFAULT];
4700 for (; i < graph->size; i++) {
4701 append_to_rev_graph(graph, filler->separator);
4702 append_to_rev_graph(graph, filler->line);
4703 if (graph_parent_is_merge(graph->prev) &&
4704 i < graph->prev->pos + graph->parents->size)
4705 filler = &fillers[RSHARP];
4706 if (graph->prev->size > graph->size)
4707 filler = &fillers[LDIAG];
4710 if (graph->prev->size > graph->size) {
4711 append_to_rev_graph(graph, filler->separator);
4712 if (filler->line != ' ')
4713 append_to_rev_graph(graph, filler->line);
4717 /* Prepare the next rev graph */
4719 prepare_rev_graph(struct rev_graph *graph)
4723 /* First, traverse all lines of revisions up to the active one. */
4724 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
4725 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
4728 push_rev_graph(graph->next, graph->rev[graph->pos]);
4731 /* Interleave the new revision parent(s). */
4732 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
4733 push_rev_graph(graph->next, graph->parents->rev[i]);
4735 /* Lastly, put any remaining revisions. */
4736 for (i = graph->pos + 1; i < graph->size; i++)
4737 push_rev_graph(graph->next, graph->rev[i]);
4741 update_rev_graph(struct rev_graph *graph)
4743 /* If this is the finalizing update ... */
4745 prepare_rev_graph(graph);
4747 /* Graph visualization needs a one rev look-ahead,
4748 * so the first update doesn't visualize anything. */
4749 if (!graph->prev->commit)
4752 draw_rev_graph(graph->prev);
4753 done_rev_graph(graph->prev->prev);
4762 main_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
4764 char buf[DATE_COLS + 1];
4765 struct commit *commit = line->data;
4766 enum line_type type;
4772 if (!*commit->author)
4775 space = view->width;
4776 wmove(view->win, lineno, col);
4780 wattrset(view->win, get_line_attr(type));
4781 wchgat(view->win, -1, 0, type, NULL);
4784 type = LINE_MAIN_COMMIT;
4785 wattrset(view->win, get_line_attr(LINE_MAIN_DATE));
4786 tilde_attr = get_line_attr(LINE_MAIN_DELIM);
4792 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time);
4793 n = draw_text(view, buf, view->width - col, FALSE, tilde_attr);
4794 draw_text(view, " ", view->width - col - n, FALSE, tilde_attr);
4797 wmove(view->win, lineno, col);
4798 if (col >= view->width)
4801 if (type != LINE_CURSOR)
4802 wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR));
4807 max_len = view->width - col;
4808 if (max_len > AUTHOR_COLS - 1)
4809 max_len = AUTHOR_COLS - 1;
4810 draw_text(view, commit->author, max_len, TRUE, tilde_attr);
4812 if (col >= view->width)
4816 if (opt_rev_graph && commit->graph_size) {
4817 size_t graph_size = view->width - col;
4820 if (type != LINE_CURSOR)
4821 wattrset(view->win, get_line_attr(LINE_MAIN_REVGRAPH));
4822 wmove(view->win, lineno, col);
4823 if (graph_size > commit->graph_size)
4824 graph_size = commit->graph_size;
4825 /* Using waddch() instead of waddnstr() ensures that
4826 * they'll be rendered correctly for the cursor line. */
4827 for (i = 0; i < graph_size; i++)
4828 waddch(view->win, commit->graph[i]);
4830 col += commit->graph_size + 1;
4831 if (col >= view->width)
4833 waddch(view->win, ' ');
4835 if (type != LINE_CURSOR)
4836 wattrset(view->win, A_NORMAL);
4838 wmove(view->win, lineno, col);
4840 if (opt_show_refs && commit->refs) {
4844 if (type == LINE_CURSOR)
4846 else if (commit->refs[i]->ltag)
4847 wattrset(view->win, get_line_attr(LINE_MAIN_LOCAL_TAG));
4848 else if (commit->refs[i]->tag)
4849 wattrset(view->win, get_line_attr(LINE_MAIN_TAG));
4850 else if (commit->refs[i]->remote)
4851 wattrset(view->win, get_line_attr(LINE_MAIN_REMOTE));
4853 wattrset(view->win, get_line_attr(LINE_MAIN_REF));
4855 col += draw_text(view, "[", view->width - col, TRUE, tilde_attr);
4856 col += draw_text(view, commit->refs[i]->name, view->width - col,
4858 col += draw_text(view, "]", view->width - col, TRUE, tilde_attr);
4859 if (type != LINE_CURSOR)
4860 wattrset(view->win, A_NORMAL);
4861 col += draw_text(view, " ", view->width - col, TRUE, tilde_attr);
4862 if (col >= view->width)
4864 } while (commit->refs[i++]->next);
4867 if (type != LINE_CURSOR)
4868 wattrset(view->win, get_line_attr(type));
4870 draw_text(view, commit->title, view->width - col, TRUE, tilde_attr);
4874 /* Reads git log --pretty=raw output and parses it into the commit struct. */
4876 main_read(struct view *view, char *line)
4878 static struct rev_graph *graph = graph_stacks;
4879 enum line_type type;
4880 struct commit *commit;
4883 update_rev_graph(graph);
4887 type = get_line_type(line);
4888 if (type == LINE_COMMIT) {
4889 commit = calloc(1, sizeof(struct commit));
4893 line += STRING_SIZE("commit ");
4895 graph->boundary = 1;
4899 string_copy_rev(commit->id, line);
4900 commit->refs = get_refs(commit->id);
4901 graph->commit = commit;
4902 add_line_data(view, commit, LINE_MAIN_COMMIT);
4904 while ((line = strchr(line, ' '))) {
4906 push_rev_graph(graph->parents, line);
4907 commit->has_parents = TRUE;
4914 commit = view->line[view->lines - 1].data;
4918 if (commit->has_parents)
4920 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
4925 /* Parse author lines where the name may be empty:
4926 * author <email@address.tld> 1138474660 +0100
4928 char *ident = line + STRING_SIZE("author ");
4929 char *nameend = strchr(ident, '<');
4930 char *emailend = strchr(ident, '>');
4932 if (!nameend || !emailend)
4935 update_rev_graph(graph);
4936 graph = graph->next;
4938 *nameend = *emailend = 0;
4939 ident = chomp_string(ident);
4941 ident = chomp_string(nameend + 1);
4946 string_ncopy(commit->author, ident, strlen(ident));
4948 /* Parse epoch and timezone */
4949 if (emailend[1] == ' ') {
4950 char *secs = emailend + 2;
4951 char *zone = strchr(secs, ' ');
4952 time_t time = (time_t) atol(secs);
4954 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
4958 tz = ('0' - zone[1]) * 60 * 60 * 10;
4959 tz += ('0' - zone[2]) * 60 * 60;
4960 tz += ('0' - zone[3]) * 60;
4961 tz += ('0' - zone[4]) * 60;
4969 gmtime_r(&time, &commit->time);
4974 /* Fill in the commit title if it has not already been set. */
4975 if (commit->title[0])
4978 /* Require titles to start with a non-space character at the
4979 * offset used by git log. */
4980 if (strncmp(line, " ", 4))
4983 /* Well, if the title starts with a whitespace character,
4984 * try to be forgiving. Otherwise we end up with no title. */
4985 while (isspace(*line))
4989 /* FIXME: More graceful handling of titles; append "..." to
4990 * shortened titles, etc. */
4992 string_ncopy(commit->title, line, strlen(line));
4999 main_request(struct view *view, enum request request, struct line *line)
5001 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5003 if (request == REQ_ENTER)
5004 open_view(view, REQ_VIEW_DIFF, flags);
5012 main_grep(struct view *view, struct line *line)
5014 struct commit *commit = line->data;
5015 enum { S_TITLE, S_AUTHOR, S_DATE, S_END } state;
5016 char buf[DATE_COLS + 1];
5019 for (state = S_TITLE; state < S_END; state++) {
5023 case S_TITLE: text = commit->title; break;
5024 case S_AUTHOR: text = commit->author; break;
5026 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5035 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5043 main_select(struct view *view, struct line *line)
5045 struct commit *commit = line->data;
5047 string_copy_rev(view->ref, commit->id);
5048 string_copy_rev(ref_commit, view->ref);
5051 static struct view_ops main_ops = {
5063 * Unicode / UTF-8 handling
5065 * NOTE: Much of the following code for dealing with unicode is derived from
5066 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5067 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5070 /* I've (over)annotated a lot of code snippets because I am not entirely
5071 * confident that the approach taken by this small UTF-8 interface is correct.
5075 unicode_width(unsigned long c)
5078 (c <= 0x115f /* Hangul Jamo */
5081 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5083 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5084 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5085 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5086 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5087 || (c >= 0xffe0 && c <= 0xffe6)
5088 || (c >= 0x20000 && c <= 0x2fffd)
5089 || (c >= 0x30000 && c <= 0x3fffd)))
5093 return opt_tab_size;
5098 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5099 * Illegal bytes are set one. */
5100 static const unsigned char utf8_bytes[256] = {
5101 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,
5102 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,
5103 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,
5104 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,
5105 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,
5106 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,
5107 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,
5108 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,
5111 /* Decode UTF-8 multi-byte representation into a unicode character. */
5112 static inline unsigned long
5113 utf8_to_unicode(const char *string, size_t length)
5115 unsigned long unicode;
5119 unicode = string[0];
5122 unicode = (string[0] & 0x1f) << 6;
5123 unicode += (string[1] & 0x3f);
5126 unicode = (string[0] & 0x0f) << 12;
5127 unicode += ((string[1] & 0x3f) << 6);
5128 unicode += (string[2] & 0x3f);
5131 unicode = (string[0] & 0x0f) << 18;
5132 unicode += ((string[1] & 0x3f) << 12);
5133 unicode += ((string[2] & 0x3f) << 6);
5134 unicode += (string[3] & 0x3f);
5137 unicode = (string[0] & 0x0f) << 24;
5138 unicode += ((string[1] & 0x3f) << 18);
5139 unicode += ((string[2] & 0x3f) << 12);
5140 unicode += ((string[3] & 0x3f) << 6);
5141 unicode += (string[4] & 0x3f);
5144 unicode = (string[0] & 0x01) << 30;
5145 unicode += ((string[1] & 0x3f) << 24);
5146 unicode += ((string[2] & 0x3f) << 18);
5147 unicode += ((string[3] & 0x3f) << 12);
5148 unicode += ((string[4] & 0x3f) << 6);
5149 unicode += (string[5] & 0x3f);
5152 die("Invalid unicode length");
5155 /* Invalid characters could return the special 0xfffd value but NUL
5156 * should be just as good. */
5157 return unicode > 0xffff ? 0 : unicode;
5160 /* Calculates how much of string can be shown within the given maximum width
5161 * and sets trimmed parameter to non-zero value if all of string could not be
5162 * shown. If the reserve flag is TRUE, it will reserve at least one
5163 * trailing character, which can be useful when drawing a delimiter.
5165 * Returns the number of bytes to output from string to satisfy max_width. */
5167 utf8_length(const char *string, size_t max_width, int *trimmed, bool reserve)
5169 const char *start = string;
5170 const char *end = strchr(string, '\0');
5171 unsigned char last_bytes = 0;
5176 while (string < end) {
5177 int c = *(unsigned char *) string;
5178 unsigned char bytes = utf8_bytes[c];
5180 unsigned long unicode;
5182 if (string + bytes > end)
5185 /* Change representation to figure out whether
5186 * it is a single- or double-width character. */
5188 unicode = utf8_to_unicode(string, bytes);
5189 /* FIXME: Graceful handling of invalid unicode character. */
5193 ucwidth = unicode_width(unicode);
5195 if (width > max_width) {
5197 if (reserve && width - ucwidth == max_width) {
5198 string -= last_bytes;
5207 return string - start;
5215 /* Whether or not the curses interface has been initialized. */
5216 static bool cursed = FALSE;
5218 /* The status window is used for polling keystrokes. */
5219 static WINDOW *status_win;
5221 static bool status_empty = TRUE;
5223 /* Update status and title window. */
5225 report(const char *msg, ...)
5227 struct view *view = display[current_view];
5233 char buf[SIZEOF_STR];
5236 va_start(args, msg);
5237 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5238 buf[sizeof(buf) - 1] = 0;
5239 buf[sizeof(buf) - 2] = '.';
5240 buf[sizeof(buf) - 3] = '.';
5241 buf[sizeof(buf) - 4] = '.';
5247 if (!status_empty || *msg) {
5250 va_start(args, msg);
5252 wmove(status_win, 0, 0);
5254 vwprintw(status_win, msg, args);
5255 status_empty = FALSE;
5257 status_empty = TRUE;
5259 wclrtoeol(status_win);
5260 wrefresh(status_win);
5265 update_view_title(view);
5266 update_display_cursor(view);
5269 /* Controls when nodelay should be in effect when polling user input. */
5271 set_nonblocking_input(bool loading)
5273 static unsigned int loading_views;
5275 if ((loading == FALSE && loading_views-- == 1) ||
5276 (loading == TRUE && loading_views++ == 0))
5277 nodelay(status_win, loading);
5285 /* Initialize the curses library */
5286 if (isatty(STDIN_FILENO)) {
5287 cursed = !!initscr();
5289 /* Leave stdin and stdout alone when acting as a pager. */
5290 FILE *io = fopen("/dev/tty", "r+");
5293 die("Failed to open /dev/tty");
5294 cursed = !!newterm(NULL, io, io);
5298 die("Failed to initialize curses");
5300 nonl(); /* Tell curses not to do NL->CR/NL on output */
5301 cbreak(); /* Take input chars one at a time, no wait for \n */
5302 noecho(); /* Don't echo input */
5303 leaveok(stdscr, TRUE);
5308 getmaxyx(stdscr, y, x);
5309 status_win = newwin(1, 0, y - 1, 0);
5311 die("Failed to create status window");
5313 /* Enable keyboard mapping */
5314 keypad(status_win, TRUE);
5315 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5319 read_prompt(const char *prompt)
5321 enum { READING, STOP, CANCEL } status = READING;
5322 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
5325 while (status == READING) {
5331 foreach_view (view, i)
5336 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5337 wclrtoeol(status_win);
5339 /* Refresh, accept single keystroke of input */
5340 key = wgetch(status_win);
5345 status = pos ? STOP : CANCEL;
5363 if (pos >= sizeof(buf)) {
5364 report("Input string too long");
5369 buf[pos++] = (char) key;
5373 /* Clear the status window */
5374 status_empty = FALSE;
5377 if (status == CANCEL)
5386 * Repository references
5389 static struct ref *refs = NULL;
5390 static size_t refs_alloc = 0;
5391 static size_t refs_size = 0;
5393 /* Id <-> ref store */
5394 static struct ref ***id_refs = NULL;
5395 static size_t id_refs_alloc = 0;
5396 static size_t id_refs_size = 0;
5398 static struct ref **
5401 struct ref ***tmp_id_refs;
5402 struct ref **ref_list = NULL;
5403 size_t ref_list_alloc = 0;
5404 size_t ref_list_size = 0;
5407 for (i = 0; i < id_refs_size; i++)
5408 if (!strcmp(id, id_refs[i][0]->id))
5411 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
5416 id_refs = tmp_id_refs;
5418 for (i = 0; i < refs_size; i++) {
5421 if (strcmp(id, refs[i].id))
5424 tmp = realloc_items(ref_list, &ref_list_alloc,
5425 ref_list_size + 1, sizeof(*ref_list));
5433 if (ref_list_size > 0)
5434 ref_list[ref_list_size - 1]->next = 1;
5435 ref_list[ref_list_size] = &refs[i];
5437 /* XXX: The properties of the commit chains ensures that we can
5438 * safely modify the shared ref. The repo references will
5439 * always be similar for the same id. */
5440 ref_list[ref_list_size]->next = 0;
5445 id_refs[id_refs_size++] = ref_list;
5451 read_ref(char *id, size_t idlen, char *name, size_t namelen)
5456 bool remote = FALSE;
5457 bool check_replace = FALSE;
5459 if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) {
5460 if (!strcmp(name + namelen - 3, "^{}")) {
5463 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
5464 check_replace = TRUE;
5470 namelen -= STRING_SIZE("refs/tags/");
5471 name += STRING_SIZE("refs/tags/");
5473 } else if (!strncmp(name, "refs/remotes/", STRING_SIZE("refs/remotes/"))) {
5475 namelen -= STRING_SIZE("refs/remotes/");
5476 name += STRING_SIZE("refs/remotes/");
5478 } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5479 namelen -= STRING_SIZE("refs/heads/");
5480 name += STRING_SIZE("refs/heads/");
5482 } else if (!strcmp(name, "HEAD")) {
5486 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
5487 /* it's an annotated tag, replace the previous sha1 with the
5488 * resolved commit id; relies on the fact git-ls-remote lists
5489 * the commit id of an annotated tag right beofre the commit id
5491 refs[refs_size - 1].ltag = ltag;
5492 string_copy_rev(refs[refs_size - 1].id, id);
5496 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
5500 ref = &refs[refs_size++];
5501 ref->name = malloc(namelen + 1);
5505 strncpy(ref->name, name, namelen);
5506 ref->name[namelen] = 0;
5509 ref->remote = remote;
5510 string_copy_rev(ref->id, id);
5518 const char *cmd_env = getenv("TIG_LS_REMOTE");
5519 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
5521 return read_properties(popen(cmd, "r"), "\t", read_ref);
5525 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
5527 if (!strcmp(name, "i18n.commitencoding"))
5528 string_ncopy(opt_encoding, value, valuelen);
5530 if (!strcmp(name, "core.editor"))
5531 string_ncopy(opt_editor, value, valuelen);
5537 load_repo_config(void)
5539 return read_properties(popen(GIT_CONFIG " --list", "r"),
5540 "=", read_repo_config_option);
5544 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
5546 if (!opt_git_dir[0]) {
5547 string_ncopy(opt_git_dir, name, namelen);
5549 } else if (opt_is_inside_work_tree == -1) {
5550 /* This can be 3 different values depending on the
5551 * version of git being used. If git-rev-parse does not
5552 * understand --is-inside-work-tree it will simply echo
5553 * the option else either "true" or "false" is printed.
5554 * Default to true for the unknown case. */
5555 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
5558 string_ncopy(opt_cdup, name, namelen);
5564 /* XXX: The line outputted by "--show-cdup" can be empty so the option
5565 * must be the last one! */
5567 load_repo_info(void)
5569 return read_properties(popen("git rev-parse --git-dir --is-inside-work-tree --show-cdup 2>/dev/null", "r"),
5570 "=", read_repo_info);
5574 read_properties(FILE *pipe, const char *separators,
5575 int (*read_property)(char *, size_t, char *, size_t))
5577 char buffer[BUFSIZ];
5584 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
5589 name = chomp_string(name);
5590 namelen = strcspn(name, separators);
5592 if (name[namelen]) {
5594 value = chomp_string(name + namelen + 1);
5595 valuelen = strlen(value);
5602 state = read_property(name, namelen, value, valuelen);
5605 if (state != ERR && ferror(pipe))
5618 static void __NORETURN
5621 /* XXX: Restore tty modes and let the OS cleanup the rest! */
5627 static void __NORETURN
5628 die(const char *err, ...)
5634 va_start(args, err);
5635 fputs("tig: ", stderr);
5636 vfprintf(stderr, err, args);
5637 fputs("\n", stderr);
5644 warn(const char *msg, ...)
5648 va_start(args, msg);
5649 fputs("tig warning: ", stderr);
5650 vfprintf(stderr, msg, args);
5651 fputs("\n", stderr);
5656 main(int argc, char *argv[])
5659 enum request request;
5662 signal(SIGINT, quit);
5664 if (setlocale(LC_ALL, "")) {
5665 char *codeset = nl_langinfo(CODESET);
5667 string_ncopy(opt_codeset, codeset, strlen(codeset));
5670 if (load_repo_info() == ERR)
5671 die("Failed to load repo info.");
5673 if (load_options() == ERR)
5674 die("Failed to load user config.");
5676 /* Load the repo config file so options can be overwritten from
5677 * the command line. */
5678 if (load_repo_config() == ERR)
5679 die("Failed to load repo config.");
5681 if (!parse_options(argc, argv))
5684 /* Require a git repository unless when running in pager mode. */
5685 if (!opt_git_dir[0])
5686 die("Not a git repository");
5688 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
5691 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
5692 opt_iconv = iconv_open(opt_codeset, opt_encoding);
5693 if (opt_iconv == ICONV_NONE)
5694 die("Failed to initialize character set conversion");
5697 if (load_refs() == ERR)
5698 die("Failed to load refs.");
5700 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
5701 view->cmd_env = getenv(view->cmd_env);
5703 request = opt_request;
5707 while (view_driver(display[current_view], request)) {
5711 foreach_view (view, i)
5714 /* Refresh, accept single keystroke of input */
5715 key = wgetch(status_win);
5717 /* wgetch() with nodelay() enabled returns ERR when there's no
5724 request = get_keybinding(display[current_view]->keymap, key);
5726 /* Some low-level request handling. This keeps access to
5727 * status_win restricted. */
5731 char *cmd = read_prompt(":");
5733 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
5734 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
5735 opt_request = REQ_VIEW_DIFF;
5737 opt_request = REQ_VIEW_PAGER;
5746 case REQ_SEARCH_BACK:
5748 const char *prompt = request == REQ_SEARCH
5750 char *search = read_prompt(prompt);
5753 string_ncopy(opt_search, search, strlen(search));
5758 case REQ_SCREEN_RESIZE:
5762 getmaxyx(stdscr, height, width);
5764 /* Resize the status view and let the view driver take
5765 * care of resizing the displayed views. */
5766 wresize(status_win, 1, width);
5767 mvwin(status_win, height - 1, 0);
5768 wrefresh(status_win);