1 /* Copyright (c) 2006 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.
15 #define TIG_VERSION "unknown-version"
30 #include <sys/types.h>
46 #define __NORETURN __attribute__((__noreturn__))
51 static void __NORETURN die(const char *err, ...);
52 static void report(const char *msg, ...);
53 static int read_properties(FILE *pipe, const char *separators, int (*read)(char *, size_t, char *, size_t));
54 static void set_nonblocking_input(bool loading);
55 static size_t utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed);
57 #define ABS(x) ((x) >= 0 ? (x) : -(x))
58 #define MIN(x, y) ((x) < (y) ? (x) : (y))
60 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
61 #define STRING_SIZE(x) (sizeof(x) - 1)
63 #define SIZEOF_STR 1024 /* Default string size. */
64 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
65 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL */
69 #define REVGRAPH_INIT 'I'
70 #define REVGRAPH_MERGE 'M'
71 #define REVGRAPH_BRANCH '+'
72 #define REVGRAPH_COMMIT '*'
73 #define REVGRAPH_LINE '|'
75 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
77 /* This color name can be used to refer to the default term colors. */
78 #define COLOR_DEFAULT (-1)
80 #define ICONV_NONE ((iconv_t) -1)
82 /* The format and size of the date column in the main view. */
83 #define DATE_FORMAT "%Y-%m-%d %H:%M"
84 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
86 #define AUTHOR_COLS 20
88 /* The default interval between line numbers. */
89 #define NUMBER_INTERVAL 1
93 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
99 #define TIG_LS_REMOTE \
100 "git ls-remote $(git rev-parse --git-dir) 2>/dev/null"
102 #define TIG_DIFF_CMD \
103 "git show --root --patch-with-stat --find-copies-harder -B -C %s 2>/dev/null"
105 #define TIG_LOG_CMD \
106 "git log --cc --stat -n100 %s 2>/dev/null"
108 #define TIG_MAIN_CMD \
109 "git log --topo-order --pretty=raw %s 2>/dev/null"
111 #define TIG_TREE_CMD \
114 #define TIG_BLOB_CMD \
115 "git cat-file blob %s"
117 /* XXX: Needs to be defined to the empty string. */
118 #define TIG_HELP_CMD ""
119 #define TIG_PAGER_CMD ""
120 #define TIG_STATUS_CMD ""
121 #define TIG_STAGE_CMD ""
123 /* Some ascii-shorthands fitted into the ncurses namespace. */
125 #define KEY_RETURN '\r'
130 char *name; /* Ref name; tag or head names are shortened. */
131 char id[SIZEOF_REV]; /* Commit SHA1 ID */
132 unsigned int tag:1; /* Is it a tag? */
133 unsigned int remote:1; /* Is it a remote ref? */
134 unsigned int next:1; /* For ref lists: are there more refs? */
137 static struct ref **get_refs(char *id);
146 set_from_int_map(struct int_map *map, size_t map_size,
147 int *value, const char *name, int namelen)
152 for (i = 0; i < map_size; i++)
153 if (namelen == map[i].namelen &&
154 !strncasecmp(name, map[i].name, namelen)) {
155 *value = map[i].value;
168 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
170 if (srclen > dstlen - 1)
173 strncpy(dst, src, srclen);
177 /* Shorthands for safely copying into a fixed buffer. */
179 #define string_copy(dst, src) \
180 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
182 #define string_ncopy(dst, src, srclen) \
183 string_ncopy_do(dst, sizeof(dst), src, srclen)
185 #define string_copy_rev(dst, src) \
186 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
188 #define string_add(dst, from, src) \
189 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
192 chomp_string(char *name)
196 while (isspace(*name))
199 namelen = strlen(name) - 1;
200 while (namelen > 0 && isspace(name[namelen]))
207 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
210 size_t pos = bufpos ? *bufpos : 0;
213 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
219 return pos >= bufsize ? FALSE : TRUE;
222 #define string_format(buf, fmt, args...) \
223 string_nformat(buf, sizeof(buf), NULL, fmt, args)
225 #define string_format_from(buf, from, fmt, args...) \
226 string_nformat(buf, sizeof(buf), from, fmt, args)
229 string_enum_compare(const char *str1, const char *str2, int len)
233 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
235 /* Diff-Header == DIFF_HEADER */
236 for (i = 0; i < len; i++) {
237 if (toupper(str1[i]) == toupper(str2[i]))
240 if (string_enum_sep(str1[i]) &&
241 string_enum_sep(str2[i]))
244 return str1[i] - str2[i];
252 * NOTE: The following is a slightly modified copy of the git project's shell
253 * quoting routines found in the quote.c file.
255 * Help to copy the thing properly quoted for the shell safety. any single
256 * quote is replaced with '\'', any exclamation point is replaced with '\!',
257 * and the whole thing is enclosed in a
260 * original sq_quote result
261 * name ==> name ==> 'name'
262 * a b ==> a b ==> 'a b'
263 * a'b ==> a'\''b ==> 'a'\''b'
264 * a!b ==> a'\!'b ==> 'a'\!'b'
268 sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src)
272 #define BUFPUT(x) do { if (bufsize < SIZEOF_STR) buf[bufsize++] = (x); } while (0)
275 while ((c = *src++)) {
276 if (c == '\'' || c == '!') {
287 if (bufsize < SIZEOF_STR)
299 /* XXX: Keep the view request first and in sync with views[]. */ \
300 REQ_GROUP("View switching") \
301 REQ_(VIEW_MAIN, "Show main view"), \
302 REQ_(VIEW_DIFF, "Show diff view"), \
303 REQ_(VIEW_LOG, "Show log view"), \
304 REQ_(VIEW_TREE, "Show tree view"), \
305 REQ_(VIEW_BLOB, "Show blob view"), \
306 REQ_(VIEW_HELP, "Show help page"), \
307 REQ_(VIEW_PAGER, "Show pager view"), \
308 REQ_(VIEW_STATUS, "Show status view"), \
309 REQ_(VIEW_STAGE, "Show stage view"), \
311 REQ_GROUP("View manipulation") \
312 REQ_(ENTER, "Enter current line and scroll"), \
313 REQ_(NEXT, "Move to next"), \
314 REQ_(PREVIOUS, "Move to previous"), \
315 REQ_(VIEW_NEXT, "Move focus to next view"), \
316 REQ_(VIEW_CLOSE, "Close the current view"), \
317 REQ_(QUIT, "Close all views and quit"), \
319 REQ_GROUP("Cursor navigation") \
320 REQ_(MOVE_UP, "Move cursor one line up"), \
321 REQ_(MOVE_DOWN, "Move cursor one line down"), \
322 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
323 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
324 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
325 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
327 REQ_GROUP("Scrolling") \
328 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
329 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
330 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
331 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
333 REQ_GROUP("Searching") \
334 REQ_(SEARCH, "Search the view"), \
335 REQ_(SEARCH_BACK, "Search backwards in the view"), \
336 REQ_(FIND_NEXT, "Find next search match"), \
337 REQ_(FIND_PREV, "Find previous search match"), \
340 REQ_(NONE, "Do nothing"), \
341 REQ_(PROMPT, "Bring up the prompt"), \
342 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
343 REQ_(SCREEN_RESIZE, "Resize the screen"), \
344 REQ_(SHOW_VERSION, "Show version information"), \
345 REQ_(STOP_LOADING, "Stop all loading views"), \
346 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
347 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
348 REQ_(STATUS_UPDATE, "Update file status"), \
349 REQ_(EDIT, "Open in editor")
352 /* User action requests. */
354 #define REQ_GROUP(help)
355 #define REQ_(req, help) REQ_##req
357 /* Offset all requests to avoid conflicts with ncurses getch values. */
358 REQ_OFFSET = KEY_MAX + 1,
366 struct request_info {
367 enum request request;
373 static struct request_info req_info[] = {
374 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
375 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
382 get_request(const char *name)
384 int namelen = strlen(name);
387 for (i = 0; i < ARRAY_SIZE(req_info); i++)
388 if (req_info[i].namelen == namelen &&
389 !string_enum_compare(req_info[i].name, name, namelen))
390 return req_info[i].request;
400 static const char usage[] =
401 "tig " TIG_VERSION " (" __DATE__ ")\n"
403 "Usage: tig [options]\n"
404 " or: tig [options] [--] [git log options]\n"
405 " or: tig [options] log [git log options]\n"
406 " or: tig [options] diff [git diff options]\n"
407 " or: tig [options] show [git show options]\n"
408 " or: tig [options] < [git command output]\n"
411 " -l Start up in log view\n"
412 " -d Start up in diff view\n"
413 " -S Start up in status view\n"
414 " -n[I], --line-number[=I] Show line numbers with given interval\n"
415 " -b[N], --tab-size[=N] Set number of spaces for tab expansion\n"
416 " -- Mark end of tig options\n"
417 " -v, --version Show version and exit\n"
418 " -h, --help Show help message and exit\n";
420 /* Option and state variables. */
421 static bool opt_line_number = FALSE;
422 static bool opt_rev_graph = FALSE;
423 static int opt_num_interval = NUMBER_INTERVAL;
424 static int opt_tab_size = TABSIZE;
425 static enum request opt_request = REQ_VIEW_MAIN;
426 static char opt_cmd[SIZEOF_STR] = "";
427 static char opt_path[SIZEOF_STR] = "";
428 static FILE *opt_pipe = NULL;
429 static char opt_encoding[20] = "UTF-8";
430 static bool opt_utf8 = TRUE;
431 static char opt_codeset[20] = "UTF-8";
432 static iconv_t opt_iconv = ICONV_NONE;
433 static char opt_search[SIZEOF_STR] = "";
434 static char opt_cdup[SIZEOF_STR] = "";
435 static char opt_git_dir[SIZEOF_STR] = "";
436 static char opt_editor[SIZEOF_STR] = "";
444 check_option(char *opt, char short_name, char *name, enum option_type type, ...)
454 int namelen = strlen(name);
458 if (strncmp(opt, name, namelen))
461 if (opt[namelen] == '=')
462 value = opt + namelen + 1;
465 if (!short_name || opt[1] != short_name)
470 va_start(args, type);
471 if (type == OPT_INT) {
472 number = va_arg(args, int *);
474 *number = atoi(value);
481 /* Returns the index of log or diff command or -1 to exit. */
483 parse_options(int argc, char *argv[])
487 for (i = 1; i < argc; i++) {
490 if (!strcmp(opt, "log") ||
491 !strcmp(opt, "diff") ||
492 !strcmp(opt, "show")) {
493 opt_request = opt[0] == 'l'
494 ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
498 if (opt[0] && opt[0] != '-')
501 if (!strcmp(opt, "-l")) {
502 opt_request = REQ_VIEW_LOG;
506 if (!strcmp(opt, "-d")) {
507 opt_request = REQ_VIEW_DIFF;
511 if (!strcmp(opt, "-S")) {
512 opt_request = REQ_VIEW_STATUS;
516 if (check_option(opt, 'n', "line-number", OPT_INT, &opt_num_interval)) {
517 opt_line_number = TRUE;
521 if (check_option(opt, 'b', "tab-size", OPT_INT, &opt_tab_size)) {
522 opt_tab_size = MIN(opt_tab_size, TABSIZE);
526 if (check_option(opt, 'v', "version", OPT_NONE)) {
527 printf("tig version %s\n", TIG_VERSION);
531 if (check_option(opt, 'h', "help", OPT_NONE)) {
536 if (!strcmp(opt, "--")) {
541 die("unknown option '%s'\n\n%s", opt, usage);
544 if (!isatty(STDIN_FILENO)) {
545 opt_request = REQ_VIEW_PAGER;
548 } else if (i < argc) {
551 if (opt_request == REQ_VIEW_MAIN)
552 /* XXX: This is vulnerable to the user overriding
553 * options required for the main view parser. */
554 string_copy(opt_cmd, "git log --pretty=raw");
556 string_copy(opt_cmd, "git");
557 buf_size = strlen(opt_cmd);
559 while (buf_size < sizeof(opt_cmd) && i < argc) {
560 opt_cmd[buf_size++] = ' ';
561 buf_size = sq_quote(opt_cmd, buf_size, argv[i++]);
564 if (buf_size >= sizeof(opt_cmd))
565 die("command too long");
567 opt_cmd[buf_size] = 0;
570 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
578 * Line-oriented content detection.
582 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
583 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
584 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
585 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
586 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
587 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
588 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
589 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
590 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
591 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
592 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
593 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
594 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
595 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
596 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
597 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
598 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
599 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
600 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
601 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
602 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
603 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
604 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
605 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
606 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
607 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
608 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
609 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
610 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
611 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
612 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
613 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
614 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
615 LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
616 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
617 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
618 LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
619 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
620 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
621 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
622 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
623 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
624 LINE(STAT_SECTION, "", COLOR_DEFAULT, COLOR_BLUE, A_BOLD), \
625 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
626 LINE(STAT_STAGED, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
627 LINE(STAT_UNSTAGED,"", COLOR_YELLOW, COLOR_DEFAULT, 0), \
628 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0)
631 #define LINE(type, line, fg, bg, attr) \
638 const char *name; /* Option name. */
639 int namelen; /* Size of option name. */
640 const char *line; /* The start of line to match. */
641 int linelen; /* Size of string to match. */
642 int fg, bg, attr; /* Color and text attributes for the lines. */
645 static struct line_info line_info[] = {
646 #define LINE(type, line, fg, bg, attr) \
647 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
652 static enum line_type
653 get_line_type(char *line)
655 int linelen = strlen(line);
658 for (type = 0; type < ARRAY_SIZE(line_info); type++)
659 /* Case insensitive search matches Signed-off-by lines better. */
660 if (linelen >= line_info[type].linelen &&
661 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
668 get_line_attr(enum line_type type)
670 assert(type < ARRAY_SIZE(line_info));
671 return COLOR_PAIR(type) | line_info[type].attr;
674 static struct line_info *
675 get_line_info(char *name, int namelen)
679 for (type = 0; type < ARRAY_SIZE(line_info); type++)
680 if (namelen == line_info[type].namelen &&
681 !string_enum_compare(line_info[type].name, name, namelen))
682 return &line_info[type];
690 int default_bg = COLOR_BLACK;
691 int default_fg = COLOR_WHITE;
696 if (use_default_colors() != ERR) {
701 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
702 struct line_info *info = &line_info[type];
703 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
704 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
706 init_pair(type, fg, bg);
714 unsigned int selected:1;
716 void *data; /* User data */
726 enum request request;
727 struct keybinding *next;
730 static struct keybinding default_keybindings[] = {
732 { 'm', REQ_VIEW_MAIN },
733 { 'd', REQ_VIEW_DIFF },
734 { 'l', REQ_VIEW_LOG },
735 { 't', REQ_VIEW_TREE },
736 { 'f', REQ_VIEW_BLOB },
737 { 'p', REQ_VIEW_PAGER },
738 { 'h', REQ_VIEW_HELP },
739 { 'S', REQ_VIEW_STATUS },
740 { 'c', REQ_VIEW_STAGE },
742 /* View manipulation */
743 { 'q', REQ_VIEW_CLOSE },
744 { KEY_TAB, REQ_VIEW_NEXT },
745 { KEY_RETURN, REQ_ENTER },
746 { KEY_UP, REQ_PREVIOUS },
747 { KEY_DOWN, REQ_NEXT },
749 /* Cursor navigation */
750 { 'k', REQ_MOVE_UP },
751 { 'j', REQ_MOVE_DOWN },
752 { KEY_HOME, REQ_MOVE_FIRST_LINE },
753 { KEY_END, REQ_MOVE_LAST_LINE },
754 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
755 { ' ', REQ_MOVE_PAGE_DOWN },
756 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
757 { 'b', REQ_MOVE_PAGE_UP },
758 { '-', REQ_MOVE_PAGE_UP },
761 { KEY_IC, REQ_SCROLL_LINE_UP },
762 { KEY_DC, REQ_SCROLL_LINE_DOWN },
763 { 'w', REQ_SCROLL_PAGE_UP },
764 { 's', REQ_SCROLL_PAGE_DOWN },
768 { '?', REQ_SEARCH_BACK },
769 { 'n', REQ_FIND_NEXT },
770 { 'N', REQ_FIND_PREV },
774 { 'z', REQ_STOP_LOADING },
775 { 'v', REQ_SHOW_VERSION },
776 { 'r', REQ_SCREEN_REDRAW },
777 { '.', REQ_TOGGLE_LINENO },
778 { 'g', REQ_TOGGLE_REV_GRAPH },
780 { 'u', REQ_STATUS_UPDATE },
783 /* Using the ncurses SIGWINCH handler. */
784 { KEY_RESIZE, REQ_SCREEN_RESIZE },
787 #define KEYMAP_INFO \
800 #define KEYMAP_(name) KEYMAP_##name
805 static struct int_map keymap_table[] = {
806 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
811 #define set_keymap(map, name) \
812 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
814 static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)];
817 add_keybinding(enum keymap keymap, enum request request, int key)
819 struct keybinding *keybinding;
821 keybinding = calloc(1, sizeof(*keybinding));
823 die("Failed to allocate keybinding");
825 keybinding->alias = key;
826 keybinding->request = request;
827 keybinding->next = keybindings[keymap];
828 keybindings[keymap] = keybinding;
831 /* Looks for a key binding first in the given map, then in the generic map, and
832 * lastly in the default keybindings. */
834 get_keybinding(enum keymap keymap, int key)
836 struct keybinding *kbd;
839 for (kbd = keybindings[keymap]; kbd; kbd = kbd->next)
840 if (kbd->alias == key)
843 for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next)
844 if (kbd->alias == key)
847 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
848 if (default_keybindings[i].alias == key)
849 return default_keybindings[i].request;
851 return (enum request) key;
860 static struct key key_table[] = {
861 { "Enter", KEY_RETURN },
863 { "Backspace", KEY_BACKSPACE },
865 { "Escape", KEY_ESC },
866 { "Left", KEY_LEFT },
867 { "Right", KEY_RIGHT },
869 { "Down", KEY_DOWN },
870 { "Insert", KEY_IC },
871 { "Delete", KEY_DC },
873 { "Home", KEY_HOME },
875 { "PageUp", KEY_PPAGE },
876 { "PageDown", KEY_NPAGE },
886 { "F10", KEY_F(10) },
887 { "F11", KEY_F(11) },
888 { "F12", KEY_F(12) },
892 get_key_value(const char *name)
896 for (i = 0; i < ARRAY_SIZE(key_table); i++)
897 if (!strcasecmp(key_table[i].name, name))
898 return key_table[i].value;
900 if (strlen(name) == 1 && isprint(*name))
907 get_key(enum request request)
909 static char buf[BUFSIZ];
910 static char key_char[] = "'X'";
917 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
918 struct keybinding *keybinding = &default_keybindings[i];
922 if (keybinding->request != request)
925 for (key = 0; key < ARRAY_SIZE(key_table); key++)
926 if (key_table[key].value == keybinding->alias)
927 seq = key_table[key].name;
930 keybinding->alias < 127 &&
931 isprint(keybinding->alias)) {
932 key_char[1] = (char) keybinding->alias;
939 if (!string_format_from(buf, &pos, "%s%s", sep, seq))
940 return "Too many keybindings!";
949 * User config file handling.
952 static struct int_map color_map[] = {
953 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
965 #define set_color(color, name) \
966 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
968 static struct int_map attr_map[] = {
969 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
979 #define set_attribute(attr, name) \
980 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
982 static int config_lineno;
983 static bool config_errors;
984 static char *config_msg;
986 /* Wants: object fgcolor bgcolor [attr] */
988 option_color_command(int argc, char *argv[])
990 struct line_info *info;
992 if (argc != 3 && argc != 4) {
993 config_msg = "Wrong number of arguments given to color command";
997 info = get_line_info(argv[0], strlen(argv[0]));
999 config_msg = "Unknown color name";
1003 if (set_color(&info->fg, argv[1]) == ERR ||
1004 set_color(&info->bg, argv[2]) == ERR) {
1005 config_msg = "Unknown color";
1009 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1010 config_msg = "Unknown attribute";
1017 /* Wants: name = value */
1019 option_set_command(int argc, char *argv[])
1022 config_msg = "Wrong number of arguments given to set command";
1026 if (strcmp(argv[1], "=")) {
1027 config_msg = "No value assigned";
1031 if (!strcmp(argv[0], "show-rev-graph")) {
1032 opt_rev_graph = (!strcmp(argv[2], "1") ||
1033 !strcmp(argv[2], "true") ||
1034 !strcmp(argv[2], "yes"));
1038 if (!strcmp(argv[0], "line-number-interval")) {
1039 opt_num_interval = atoi(argv[2]);
1043 if (!strcmp(argv[0], "tab-size")) {
1044 opt_tab_size = atoi(argv[2]);
1048 if (!strcmp(argv[0], "commit-encoding")) {
1049 char *arg = argv[2];
1050 int delimiter = *arg;
1053 switch (delimiter) {
1056 for (arg++, i = 0; arg[i]; i++)
1057 if (arg[i] == delimiter) {
1062 string_ncopy(opt_encoding, arg, strlen(arg));
1067 config_msg = "Unknown variable name";
1071 /* Wants: mode request key */
1073 option_bind_command(int argc, char *argv[])
1075 enum request request;
1080 config_msg = "Wrong number of arguments given to bind command";
1084 if (set_keymap(&keymap, argv[0]) == ERR) {
1085 config_msg = "Unknown key map";
1089 key = get_key_value(argv[1]);
1091 config_msg = "Unknown key";
1095 request = get_request(argv[2]);
1096 if (request == REQ_UNKNOWN) {
1097 config_msg = "Unknown request name";
1101 add_keybinding(keymap, request, key);
1107 set_option(char *opt, char *value)
1114 while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) {
1115 argv[argc++] = value;
1122 while (isspace(*value))
1126 if (!strcmp(opt, "color"))
1127 return option_color_command(argc, argv);
1129 if (!strcmp(opt, "set"))
1130 return option_set_command(argc, argv);
1132 if (!strcmp(opt, "bind"))
1133 return option_bind_command(argc, argv);
1135 config_msg = "Unknown option command";
1140 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1145 config_msg = "Internal error";
1147 /* Check for comment markers, since read_properties() will
1148 * only ensure opt and value are split at first " \t". */
1149 optlen = strcspn(opt, "#");
1153 if (opt[optlen] != 0) {
1154 config_msg = "No option value";
1158 /* Look for comment endings in the value. */
1159 size_t len = strcspn(value, "#");
1161 if (len < valuelen) {
1163 value[valuelen] = 0;
1166 status = set_option(opt, value);
1169 if (status == ERR) {
1170 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1171 config_lineno, (int) optlen, opt, config_msg);
1172 config_errors = TRUE;
1175 /* Always keep going if errors are encountered. */
1182 char *home = getenv("HOME");
1183 char buf[SIZEOF_STR];
1187 config_errors = FALSE;
1189 if (!home || !string_format(buf, "%s/.tigrc", home))
1192 /* It's ok that the file doesn't exist. */
1193 file = fopen(buf, "r");
1197 if (read_properties(file, " \t", read_option) == ERR ||
1198 config_errors == TRUE)
1199 fprintf(stderr, "Errors while loading %s.\n", buf);
1212 /* The display array of active views and the index of the current view. */
1213 static struct view *display[2];
1214 static unsigned int current_view;
1216 /* Reading from the prompt? */
1217 static bool input_mode = FALSE;
1219 #define foreach_displayed_view(view, i) \
1220 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1222 #define displayed_views() (display[1] != NULL ? 2 : 1)
1224 /* Current head and commit ID */
1225 static char ref_blob[SIZEOF_REF] = "";
1226 static char ref_commit[SIZEOF_REF] = "HEAD";
1227 static char ref_head[SIZEOF_REF] = "HEAD";
1230 const char *name; /* View name */
1231 const char *cmd_fmt; /* Default command line format */
1232 const char *cmd_env; /* Command line set via environment */
1233 const char *id; /* Points to either of ref_{head,commit,blob} */
1235 struct view_ops *ops; /* View operations */
1237 enum keymap keymap; /* What keymap does this view have */
1239 char cmd[SIZEOF_STR]; /* Command buffer */
1240 char ref[SIZEOF_REF]; /* Hovered commit reference */
1241 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1243 int height, width; /* The width and height of the main window */
1244 WINDOW *win; /* The main window */
1245 WINDOW *title; /* The title window living below the main window */
1248 unsigned long offset; /* Offset of the window top */
1249 unsigned long lineno; /* Current line number */
1252 char grep[SIZEOF_STR]; /* Search string */
1253 regex_t *regex; /* Pre-compiled regex */
1255 /* If non-NULL, points to the view that opened this view. If this view
1256 * is closed tig will switch back to the parent view. */
1257 struct view *parent;
1260 unsigned long lines; /* Total number of lines */
1261 struct line *line; /* Line index */
1262 unsigned long line_size;/* Total number of allocated lines */
1263 unsigned int digits; /* Number of digits in the lines member. */
1271 /* What type of content being displayed. Used in the title bar. */
1273 /* Open and reads in all view content. */
1274 bool (*open)(struct view *view);
1275 /* Read one line; updates view->line. */
1276 bool (*read)(struct view *view, char *data);
1277 /* Draw one line; @lineno must be < view->height. */
1278 bool (*draw)(struct view *view, struct line *line, unsigned int lineno, bool selected);
1279 /* Depending on view handle a special requests. */
1280 enum request (*request)(struct view *view, enum request request, struct line *line);
1281 /* Search for regex in a line. */
1282 bool (*grep)(struct view *view, struct line *line);
1284 void (*select)(struct view *view, struct line *line);
1287 static struct view_ops pager_ops;
1288 static struct view_ops main_ops;
1289 static struct view_ops tree_ops;
1290 static struct view_ops blob_ops;
1291 static struct view_ops help_ops;
1292 static struct view_ops status_ops;
1293 static struct view_ops stage_ops;
1295 #define VIEW_STR(name, cmd, env, ref, ops, map) \
1296 { name, cmd, #env, ref, ops, map}
1298 #define VIEW_(id, name, ops, ref) \
1299 VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id)
1302 static struct view views[] = {
1303 VIEW_(MAIN, "main", &main_ops, ref_head),
1304 VIEW_(DIFF, "diff", &pager_ops, ref_commit),
1305 VIEW_(LOG, "log", &pager_ops, ref_head),
1306 VIEW_(TREE, "tree", &tree_ops, ref_commit),
1307 VIEW_(BLOB, "blob", &blob_ops, ref_blob),
1308 VIEW_(HELP, "help", &help_ops, ""),
1309 VIEW_(PAGER, "pager", &pager_ops, "stdin"),
1310 VIEW_(STATUS, "status", &status_ops, ""),
1311 VIEW_(STAGE, "stage", &stage_ops, ""),
1314 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1316 #define foreach_view(view, i) \
1317 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1319 #define view_is_displayed(view) \
1320 (view == display[0] || view == display[1])
1323 draw_view_line(struct view *view, unsigned int lineno)
1326 bool selected = (view->offset + lineno == view->lineno);
1329 assert(view_is_displayed(view));
1331 if (view->offset + lineno >= view->lines)
1334 line = &view->line[view->offset + lineno];
1337 line->selected = TRUE;
1338 view->ops->select(view, line);
1339 } else if (line->selected) {
1340 line->selected = FALSE;
1341 wmove(view->win, lineno, 0);
1342 wclrtoeol(view->win);
1345 scrollok(view->win, FALSE);
1346 draw_ok = view->ops->draw(view, line, lineno, selected);
1347 scrollok(view->win, TRUE);
1353 redraw_view_from(struct view *view, int lineno)
1355 assert(0 <= lineno && lineno < view->height);
1357 for (; lineno < view->height; lineno++) {
1358 if (!draw_view_line(view, lineno))
1362 redrawwin(view->win);
1364 wnoutrefresh(view->win);
1366 wrefresh(view->win);
1370 redraw_view(struct view *view)
1373 redraw_view_from(view, 0);
1378 update_view_title(struct view *view)
1380 char buf[SIZEOF_STR];
1381 char state[SIZEOF_STR];
1382 size_t bufpos = 0, statelen = 0;
1384 assert(view_is_displayed(view));
1386 if (view != VIEW(REQ_VIEW_STATUS) && (view->lines || view->pipe)) {
1387 unsigned int view_lines = view->offset + view->height;
1388 unsigned int lines = view->lines
1389 ? MIN(view_lines, view->lines) * 100 / view->lines
1392 string_format_from(state, &statelen, "- %s %d of %d (%d%%)",
1399 time_t secs = time(NULL) - view->start_time;
1401 /* Three git seconds are a long time ... */
1403 string_format_from(state, &statelen, " %lds", secs);
1407 string_format_from(buf, &bufpos, "[%s]", view->name);
1408 if (*view->ref && bufpos < view->width) {
1409 size_t refsize = strlen(view->ref);
1410 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
1412 if (minsize < view->width)
1413 refsize = view->width - minsize + 7;
1414 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
1417 if (statelen && bufpos < view->width) {
1418 string_format_from(buf, &bufpos, " %s", state);
1421 if (view == display[current_view])
1422 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
1424 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
1426 mvwaddnstr(view->title, 0, 0, buf, bufpos);
1427 wclrtoeol(view->title);
1428 wmove(view->title, 0, view->width - 1);
1431 wnoutrefresh(view->title);
1433 wrefresh(view->title);
1437 resize_display(void)
1440 struct view *base = display[0];
1441 struct view *view = display[1] ? display[1] : display[0];
1443 /* Setup window dimensions */
1445 getmaxyx(stdscr, base->height, base->width);
1447 /* Make room for the status window. */
1451 /* Horizontal split. */
1452 view->width = base->width;
1453 view->height = SCALE_SPLIT_VIEW(base->height);
1454 base->height -= view->height;
1456 /* Make room for the title bar. */
1460 /* Make room for the title bar. */
1465 foreach_displayed_view (view, i) {
1467 view->win = newwin(view->height, 0, offset, 0);
1469 die("Failed to create %s view", view->name);
1471 scrollok(view->win, TRUE);
1473 view->title = newwin(1, 0, offset + view->height, 0);
1475 die("Failed to create title window");
1478 wresize(view->win, view->height, view->width);
1479 mvwin(view->win, offset, 0);
1480 mvwin(view->title, offset + view->height, 0);
1483 offset += view->height + 1;
1488 redraw_display(void)
1493 foreach_displayed_view (view, i) {
1495 update_view_title(view);
1500 update_display_cursor(struct view *view)
1502 /* Move the cursor to the right-most column of the cursor line.
1504 * XXX: This could turn out to be a bit expensive, but it ensures that
1505 * the cursor does not jump around. */
1507 wmove(view->win, view->lineno - view->offset, view->width - 1);
1508 wrefresh(view->win);
1516 /* Scrolling backend */
1518 do_scroll_view(struct view *view, int lines)
1520 bool redraw_current_line = FALSE;
1522 /* The rendering expects the new offset. */
1523 view->offset += lines;
1525 assert(0 <= view->offset && view->offset < view->lines);
1528 /* Move current line into the view. */
1529 if (view->lineno < view->offset) {
1530 view->lineno = view->offset;
1531 redraw_current_line = TRUE;
1532 } else if (view->lineno >= view->offset + view->height) {
1533 view->lineno = view->offset + view->height - 1;
1534 redraw_current_line = TRUE;
1537 assert(view->offset <= view->lineno && view->lineno < view->lines);
1539 /* Redraw the whole screen if scrolling is pointless. */
1540 if (view->height < ABS(lines)) {
1544 int line = lines > 0 ? view->height - lines : 0;
1545 int end = line + ABS(lines);
1547 wscrl(view->win, lines);
1549 for (; line < end; line++) {
1550 if (!draw_view_line(view, line))
1554 if (redraw_current_line)
1555 draw_view_line(view, view->lineno - view->offset);
1558 redrawwin(view->win);
1559 wrefresh(view->win);
1563 /* Scroll frontend */
1565 scroll_view(struct view *view, enum request request)
1569 assert(view_is_displayed(view));
1572 case REQ_SCROLL_PAGE_DOWN:
1573 lines = view->height;
1574 case REQ_SCROLL_LINE_DOWN:
1575 if (view->offset + lines > view->lines)
1576 lines = view->lines - view->offset;
1578 if (lines == 0 || view->offset + view->height >= view->lines) {
1579 report("Cannot scroll beyond the last line");
1584 case REQ_SCROLL_PAGE_UP:
1585 lines = view->height;
1586 case REQ_SCROLL_LINE_UP:
1587 if (lines > view->offset)
1588 lines = view->offset;
1591 report("Cannot scroll beyond the first line");
1599 die("request %d not handled in switch", request);
1602 do_scroll_view(view, lines);
1607 move_view(struct view *view, enum request request)
1609 int scroll_steps = 0;
1613 case REQ_MOVE_FIRST_LINE:
1614 steps = -view->lineno;
1617 case REQ_MOVE_LAST_LINE:
1618 steps = view->lines - view->lineno - 1;
1621 case REQ_MOVE_PAGE_UP:
1622 steps = view->height > view->lineno
1623 ? -view->lineno : -view->height;
1626 case REQ_MOVE_PAGE_DOWN:
1627 steps = view->lineno + view->height >= view->lines
1628 ? view->lines - view->lineno - 1 : view->height;
1640 die("request %d not handled in switch", request);
1643 if (steps <= 0 && view->lineno == 0) {
1644 report("Cannot move beyond the first line");
1647 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
1648 report("Cannot move beyond the last line");
1652 /* Move the current line */
1653 view->lineno += steps;
1654 assert(0 <= view->lineno && view->lineno < view->lines);
1656 /* Check whether the view needs to be scrolled */
1657 if (view->lineno < view->offset ||
1658 view->lineno >= view->offset + view->height) {
1659 scroll_steps = steps;
1660 if (steps < 0 && -steps > view->offset) {
1661 scroll_steps = -view->offset;
1663 } else if (steps > 0) {
1664 if (view->lineno == view->lines - 1 &&
1665 view->lines > view->height) {
1666 scroll_steps = view->lines - view->offset - 1;
1667 if (scroll_steps >= view->height)
1668 scroll_steps -= view->height - 1;
1673 if (!view_is_displayed(view)) {
1674 view->offset += scroll_steps;
1675 assert(0 <= view->offset && view->offset < view->lines);
1676 view->ops->select(view, &view->line[view->lineno]);
1680 /* Repaint the old "current" line if we be scrolling */
1681 if (ABS(steps) < view->height)
1682 draw_view_line(view, view->lineno - steps - view->offset);
1685 do_scroll_view(view, scroll_steps);
1689 /* Draw the current line */
1690 draw_view_line(view, view->lineno - view->offset);
1692 redrawwin(view->win);
1693 wrefresh(view->win);
1702 static void search_view(struct view *view, enum request request);
1705 find_next_line(struct view *view, unsigned long lineno, struct line *line)
1707 assert(view_is_displayed(view));
1709 if (!view->ops->grep(view, line))
1712 if (lineno - view->offset >= view->height) {
1713 view->offset = lineno;
1714 view->lineno = lineno;
1718 unsigned long old_lineno = view->lineno - view->offset;
1720 view->lineno = lineno;
1721 draw_view_line(view, old_lineno);
1723 draw_view_line(view, view->lineno - view->offset);
1724 redrawwin(view->win);
1725 wrefresh(view->win);
1728 report("Line %ld matches '%s'", lineno + 1, view->grep);
1733 find_next(struct view *view, enum request request)
1735 unsigned long lineno = view->lineno;
1740 report("No previous search");
1742 search_view(view, request);
1752 case REQ_SEARCH_BACK:
1761 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
1762 lineno += direction;
1764 /* Note, lineno is unsigned long so will wrap around in which case it
1765 * will become bigger than view->lines. */
1766 for (; lineno < view->lines; lineno += direction) {
1767 struct line *line = &view->line[lineno];
1769 if (find_next_line(view, lineno, line))
1773 report("No match found for '%s'", view->grep);
1777 search_view(struct view *view, enum request request)
1782 regfree(view->regex);
1785 view->regex = calloc(1, sizeof(*view->regex));
1790 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
1791 if (regex_err != 0) {
1792 char buf[SIZEOF_STR] = "unknown error";
1794 regerror(regex_err, view->regex, buf, sizeof(buf));
1795 report("Search failed: %s", buf);
1799 string_copy(view->grep, opt_search);
1801 find_next(view, request);
1805 * Incremental updating
1809 end_update(struct view *view)
1813 set_nonblocking_input(FALSE);
1814 if (view->pipe == stdin)
1822 begin_update(struct view *view)
1828 string_copy(view->cmd, opt_cmd);
1830 /* When running random commands, initially show the
1831 * command in the title. However, it maybe later be
1832 * overwritten if a commit line is selected. */
1833 if (view == VIEW(REQ_VIEW_PAGER))
1834 string_copy(view->ref, view->cmd);
1838 } else if (view == VIEW(REQ_VIEW_TREE)) {
1839 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
1840 char path[SIZEOF_STR];
1842 if (strcmp(view->vid, view->id))
1843 opt_path[0] = path[0] = 0;
1844 else if (sq_quote(path, 0, opt_path) >= sizeof(path))
1847 if (!string_format(view->cmd, format, view->id, path))
1851 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
1852 const char *id = view->id;
1854 if (!string_format(view->cmd, format, id, id, id, id, id))
1857 /* Put the current ref_* value to the view title ref
1858 * member. This is needed by the blob view. Most other
1859 * views sets it automatically after loading because the
1860 * first line is a commit line. */
1861 string_copy_rev(view->ref, view->id);
1864 /* Special case for the pager view. */
1866 view->pipe = opt_pipe;
1869 view->pipe = popen(view->cmd, "r");
1875 set_nonblocking_input(TRUE);
1880 string_copy_rev(view->vid, view->id);
1885 for (i = 0; i < view->lines; i++)
1886 if (view->line[i].data)
1887 free(view->line[i].data);
1893 view->start_time = time(NULL);
1898 static struct line *
1899 realloc_lines(struct view *view, size_t line_size)
1901 struct line *tmp = realloc(view->line, sizeof(*view->line) * line_size);
1907 view->line_size = line_size;
1912 update_view(struct view *view)
1914 char in_buffer[BUFSIZ];
1915 char out_buffer[BUFSIZ * 2];
1917 /* The number of lines to read. If too low it will cause too much
1918 * redrawing (and possible flickering), if too high responsiveness
1920 unsigned long lines = view->height;
1921 int redraw_from = -1;
1926 /* Only redraw if lines are visible. */
1927 if (view->offset + view->height >= view->lines)
1928 redraw_from = view->lines - view->offset;
1930 /* FIXME: This is probably not perfect for backgrounded views. */
1931 if (!realloc_lines(view, view->lines + lines))
1934 while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) {
1935 size_t linelen = strlen(line);
1938 line[linelen - 1] = 0;
1940 if (opt_iconv != ICONV_NONE) {
1941 ICONV_INBUF_TYPE inbuf = line;
1942 size_t inlen = linelen;
1944 char *outbuf = out_buffer;
1945 size_t outlen = sizeof(out_buffer);
1949 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
1950 if (ret != (size_t) -1) {
1952 linelen = strlen(out_buffer);
1956 if (!view->ops->read(view, line))
1966 lines = view->lines;
1967 for (digits = 0; lines; digits++)
1970 /* Keep the displayed view in sync with line number scaling. */
1971 if (digits != view->digits) {
1972 view->digits = digits;
1977 if (!view_is_displayed(view))
1980 if (view == VIEW(REQ_VIEW_TREE)) {
1981 /* Clear the view and redraw everything since the tree sorting
1982 * might have rearranged things. */
1985 } else if (redraw_from >= 0) {
1986 /* If this is an incremental update, redraw the previous line
1987 * since for commits some members could have changed when
1988 * loading the main view. */
1989 if (redraw_from > 0)
1992 /* Since revision graph visualization requires knowledge
1993 * about the parent commit, it causes a further one-off
1994 * needed to be redrawn for incremental updates. */
1995 if (redraw_from > 0 && opt_rev_graph)
1998 /* Incrementally draw avoids flickering. */
1999 redraw_view_from(view, redraw_from);
2002 /* Update the title _after_ the redraw so that if the redraw picks up a
2003 * commit reference in view->ref it'll be available here. */
2004 update_view_title(view);
2007 if (ferror(view->pipe)) {
2008 report("Failed to read: %s", strerror(errno));
2011 } else if (feof(view->pipe)) {
2019 report("Allocation failure");
2022 view->ops->read(view, NULL);
2027 static struct line *
2028 add_line_data(struct view *view, void *data, enum line_type type)
2030 struct line *line = &view->line[view->lines++];
2032 memset(line, 0, sizeof(*line));
2039 static struct line *
2040 add_line_text(struct view *view, char *data, enum line_type type)
2043 data = strdup(data);
2045 return data ? add_line_data(view, data, type) : NULL;
2054 OPEN_DEFAULT = 0, /* Use default view switching. */
2055 OPEN_SPLIT = 1, /* Split current view. */
2056 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2057 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2061 open_view(struct view *prev, enum request request, enum open_flags flags)
2063 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2064 bool split = !!(flags & OPEN_SPLIT);
2065 bool reload = !!(flags & OPEN_RELOAD);
2066 struct view *view = VIEW(request);
2067 int nviews = displayed_views();
2068 struct view *base_view = display[0];
2070 if (view == prev && nviews == 1 && !reload) {
2071 report("Already in %s view", view->name);
2075 if (view->ops->open) {
2076 if (!view->ops->open(view)) {
2077 report("Failed to load %s view", view->name);
2081 } else if ((reload || strcmp(view->vid, view->id)) &&
2082 !begin_update(view)) {
2083 report("Failed to load %s view", view->name);
2092 /* Maximize the current view. */
2093 memset(display, 0, sizeof(display));
2095 display[current_view] = view;
2098 /* Resize the view when switching between split- and full-screen,
2099 * or when switching between two different full-screen views. */
2100 if (nviews != displayed_views() ||
2101 (nviews == 1 && base_view != display[0]))
2104 if (split && prev->lineno - prev->offset >= prev->height) {
2105 /* Take the title line into account. */
2106 int lines = prev->lineno - prev->offset - prev->height + 1;
2108 /* Scroll the view that was split if the current line is
2109 * outside the new limited view. */
2110 do_scroll_view(prev, lines);
2113 if (prev && view != prev) {
2114 if (split && !backgrounded) {
2115 /* "Blur" the previous view. */
2116 update_view_title(prev);
2119 view->parent = prev;
2122 if (view->pipe && view->lines == 0) {
2123 /* Clear the old view and let the incremental updating refill
2132 /* If the view is backgrounded the above calls to report()
2133 * won't redraw the view title. */
2135 update_view_title(view);
2139 open_editor(struct view *view, char *file)
2141 char cmd[SIZEOF_STR];
2142 char file_sq[SIZEOF_STR];
2145 editor = getenv("GIT_EDITOR");
2146 if (!editor && *opt_editor)
2147 editor = opt_editor;
2149 editor = getenv("VISUAL");
2151 editor = getenv("EDITOR");
2155 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2156 string_format(cmd, "%s %s", editor, file_sq)) {
2157 def_prog_mode(); /* save current tty modes */
2158 endwin(); /* restore original tty modes */
2166 * User request switch noodle
2170 view_driver(struct view *view, enum request request)
2174 if (view && view->lines) {
2175 request = view->ops->request(view, request, &view->line[view->lineno]);
2176 if (request == REQ_NONE)
2183 case REQ_MOVE_PAGE_UP:
2184 case REQ_MOVE_PAGE_DOWN:
2185 case REQ_MOVE_FIRST_LINE:
2186 case REQ_MOVE_LAST_LINE:
2187 move_view(view, request);
2190 case REQ_SCROLL_LINE_DOWN:
2191 case REQ_SCROLL_LINE_UP:
2192 case REQ_SCROLL_PAGE_DOWN:
2193 case REQ_SCROLL_PAGE_UP:
2194 scroll_view(view, request);
2199 report("No file chosen, press %s to open tree view",
2200 get_key(REQ_VIEW_TREE));
2203 open_view(view, request, OPEN_DEFAULT);
2206 case REQ_VIEW_PAGER:
2207 if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2208 report("No pager content, press %s to run command from prompt",
2209 get_key(REQ_PROMPT));
2212 open_view(view, request, OPEN_DEFAULT);
2215 case REQ_VIEW_STAGE:
2216 if (!VIEW(REQ_VIEW_STAGE)->lines) {
2217 report("No stage content, press %s to open the status view and choose file",
2218 get_key(REQ_VIEW_STATUS));
2221 open_view(view, request, OPEN_DEFAULT);
2229 case REQ_VIEW_STATUS:
2230 open_view(view, request, OPEN_DEFAULT);
2235 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2237 if ((view == VIEW(REQ_VIEW_DIFF) &&
2238 view->parent == VIEW(REQ_VIEW_MAIN)) ||
2239 (view == VIEW(REQ_VIEW_STAGE) &&
2240 view->parent == VIEW(REQ_VIEW_STATUS)) ||
2241 (view == VIEW(REQ_VIEW_BLOB) &&
2242 view->parent == VIEW(REQ_VIEW_TREE))) {
2245 view = view->parent;
2246 line = view->lineno;
2247 move_view(view, request);
2248 if (view_is_displayed(view))
2249 update_view_title(view);
2250 if (line != view->lineno)
2251 view->ops->request(view, REQ_ENTER,
2252 &view->line[view->lineno]);
2255 move_view(view, request);
2261 int nviews = displayed_views();
2262 int next_view = (current_view + 1) % nviews;
2264 if (next_view == current_view) {
2265 report("Only one view is displayed");
2269 current_view = next_view;
2270 /* Blur out the title of the previous view. */
2271 update_view_title(view);
2275 case REQ_TOGGLE_LINENO:
2276 opt_line_number = !opt_line_number;
2280 case REQ_TOGGLE_REV_GRAPH:
2281 opt_rev_graph = !opt_rev_graph;
2286 /* Always reload^Wrerun commands from the prompt. */
2287 open_view(view, opt_request, OPEN_RELOAD);
2291 case REQ_SEARCH_BACK:
2292 search_view(view, request);
2297 find_next(view, request);
2300 case REQ_STOP_LOADING:
2301 for (i = 0; i < ARRAY_SIZE(views); i++) {
2304 report("Stopped loading the %s view", view->name),
2309 case REQ_SHOW_VERSION:
2310 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
2313 case REQ_SCREEN_RESIZE:
2316 case REQ_SCREEN_REDRAW:
2321 report("Nothing to edit");
2325 report("Nothing to enter");
2332 case REQ_VIEW_CLOSE:
2333 /* XXX: Mark closed views by letting view->parent point to the
2334 * view itself. Parents to closed view should never be
2337 view->parent->parent != view->parent) {
2338 memset(display, 0, sizeof(display));
2340 display[current_view] = view->parent;
2341 view->parent = view;
2351 /* An unknown key will show most commonly used commands. */
2352 report("Unknown key, press 'h' for help");
2365 pager_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
2367 char *text = line->data;
2368 enum line_type type = line->type;
2369 int textlen = strlen(text);
2372 wmove(view->win, lineno, 0);
2376 wchgat(view->win, -1, 0, type, NULL);
2379 attr = get_line_attr(type);
2380 wattrset(view->win, attr);
2382 if (opt_line_number || opt_tab_size < TABSIZE) {
2383 static char spaces[] = " ";
2384 int col_offset = 0, col = 0;
2386 if (opt_line_number) {
2387 unsigned long real_lineno = view->offset + lineno + 1;
2389 if (real_lineno == 1 ||
2390 (real_lineno % opt_num_interval) == 0) {
2391 wprintw(view->win, "%.*d", view->digits, real_lineno);
2394 waddnstr(view->win, spaces,
2395 MIN(view->digits, STRING_SIZE(spaces)));
2397 waddstr(view->win, ": ");
2398 col_offset = view->digits + 2;
2401 while (text && col_offset + col < view->width) {
2402 int cols_max = view->width - col_offset - col;
2406 if (*text == '\t') {
2408 assert(sizeof(spaces) > TABSIZE);
2410 cols = opt_tab_size - (col % opt_tab_size);
2413 text = strchr(text, '\t');
2414 cols = line ? text - pos : strlen(pos);
2417 waddnstr(view->win, pos, MIN(cols, cols_max));
2422 int col = 0, pos = 0;
2424 for (; pos < textlen && col < view->width; pos++, col++)
2425 if (text[pos] == '\t')
2426 col += TABSIZE - (col % TABSIZE) - 1;
2428 waddnstr(view->win, text, pos);
2435 add_describe_ref(char *buf, size_t *bufpos, char *commit_id, const char *sep)
2437 char refbuf[SIZEOF_STR];
2441 if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id))
2444 pipe = popen(refbuf, "r");
2448 if ((ref = fgets(refbuf, sizeof(refbuf), pipe)))
2449 ref = chomp_string(ref);
2455 /* This is the only fatal call, since it can "corrupt" the buffer. */
2456 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
2463 add_pager_refs(struct view *view, struct line *line)
2465 char buf[SIZEOF_STR];
2466 char *commit_id = line->data + STRING_SIZE("commit ");
2468 size_t bufpos = 0, refpos = 0;
2469 const char *sep = "Refs: ";
2470 bool is_tag = FALSE;
2472 assert(line->type == LINE_COMMIT);
2474 refs = get_refs(commit_id);
2476 if (view == VIEW(REQ_VIEW_DIFF))
2477 goto try_add_describe_ref;
2482 struct ref *ref = refs[refpos];
2483 char *fmt = ref->tag ? "%s[%s]" :
2484 ref->remote ? "%s<%s>" : "%s%s";
2486 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
2491 } while (refs[refpos++]->next);
2493 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
2494 try_add_describe_ref:
2495 /* Add <tag>-g<commit_id> "fake" reference. */
2496 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
2503 if (!realloc_lines(view, view->line_size + 1))
2506 add_line_text(view, buf, LINE_PP_REFS);
2510 pager_read(struct view *view, char *data)
2517 line = add_line_text(view, data, get_line_type(data));
2521 if (line->type == LINE_COMMIT &&
2522 (view == VIEW(REQ_VIEW_DIFF) ||
2523 view == VIEW(REQ_VIEW_LOG)))
2524 add_pager_refs(view, line);
2530 pager_request(struct view *view, enum request request, struct line *line)
2534 if (request != REQ_ENTER)
2537 if (line->type == LINE_COMMIT &&
2538 (view == VIEW(REQ_VIEW_LOG) ||
2539 view == VIEW(REQ_VIEW_PAGER))) {
2540 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
2544 /* Always scroll the view even if it was split. That way
2545 * you can use Enter to scroll through the log view and
2546 * split open each commit diff. */
2547 scroll_view(view, REQ_SCROLL_LINE_DOWN);
2549 /* FIXME: A minor workaround. Scrolling the view will call report("")
2550 * but if we are scrolling a non-current view this won't properly
2551 * update the view title. */
2553 update_view_title(view);
2559 pager_grep(struct view *view, struct line *line)
2562 char *text = line->data;
2567 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
2574 pager_select(struct view *view, struct line *line)
2576 if (line->type == LINE_COMMIT) {
2577 char *text = line->data + STRING_SIZE("commit ");
2579 if (view != VIEW(REQ_VIEW_PAGER))
2580 string_copy_rev(view->ref, text);
2581 string_copy_rev(ref_commit, text);
2585 static struct view_ops pager_ops = {
2601 help_open(struct view *view)
2604 int lines = ARRAY_SIZE(req_info) + 2;
2607 if (view->lines > 0)
2610 for (i = 0; i < ARRAY_SIZE(req_info); i++)
2611 if (!req_info[i].request)
2614 view->line = calloc(lines, sizeof(*view->line));
2618 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
2620 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
2623 if (!req_info[i].request) {
2624 add_line_text(view, "", LINE_DEFAULT);
2625 add_line_text(view, req_info[i].help, LINE_DEFAULT);
2629 key = get_key(req_info[i].request);
2630 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
2633 add_line_text(view, buf, LINE_DEFAULT);
2639 static struct view_ops help_ops = {
2654 struct tree_stack_entry {
2655 struct tree_stack_entry *prev; /* Entry below this in the stack */
2656 unsigned long lineno; /* Line number to restore */
2657 char *name; /* Position of name in opt_path */
2660 /* The top of the path stack. */
2661 static struct tree_stack_entry *tree_stack = NULL;
2662 unsigned long tree_lineno = 0;
2665 pop_tree_stack_entry(void)
2667 struct tree_stack_entry *entry = tree_stack;
2669 tree_lineno = entry->lineno;
2671 tree_stack = entry->prev;
2676 push_tree_stack_entry(char *name, unsigned long lineno)
2678 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
2679 size_t pathlen = strlen(opt_path);
2684 entry->prev = tree_stack;
2685 entry->name = opt_path + pathlen;
2688 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
2689 pop_tree_stack_entry();
2693 /* Move the current line to the first tree entry. */
2695 entry->lineno = lineno;
2698 /* Parse output from git-ls-tree(1):
2700 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
2701 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
2702 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
2703 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
2706 #define SIZEOF_TREE_ATTR \
2707 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
2709 #define TREE_UP_FORMAT "040000 tree %s\t.."
2712 tree_compare_entry(enum line_type type1, char *name1,
2713 enum line_type type2, char *name2)
2715 if (type1 != type2) {
2716 if (type1 == LINE_TREE_DIR)
2721 return strcmp(name1, name2);
2725 tree_read(struct view *view, char *text)
2727 size_t textlen = text ? strlen(text) : 0;
2728 char buf[SIZEOF_STR];
2730 enum line_type type;
2731 bool first_read = view->lines == 0;
2733 if (textlen <= SIZEOF_TREE_ATTR)
2736 type = text[STRING_SIZE("100644 ")] == 't'
2737 ? LINE_TREE_DIR : LINE_TREE_FILE;
2740 /* Add path info line */
2741 if (!string_format(buf, "Directory path /%s", opt_path) ||
2742 !realloc_lines(view, view->line_size + 1) ||
2743 !add_line_text(view, buf, LINE_DEFAULT))
2746 /* Insert "link" to parent directory. */
2748 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
2749 !realloc_lines(view, view->line_size + 1) ||
2750 !add_line_text(view, buf, LINE_TREE_DIR))
2755 /* Strip the path part ... */
2757 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
2758 size_t striplen = strlen(opt_path);
2759 char *path = text + SIZEOF_TREE_ATTR;
2761 if (pathlen > striplen)
2762 memmove(path, path + striplen,
2763 pathlen - striplen + 1);
2766 /* Skip "Directory ..." and ".." line. */
2767 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
2768 struct line *line = &view->line[pos];
2769 char *path1 = ((char *) line->data) + SIZEOF_TREE_ATTR;
2770 char *path2 = text + SIZEOF_TREE_ATTR;
2771 int cmp = tree_compare_entry(line->type, path1, type, path2);
2776 text = strdup(text);
2780 if (view->lines > pos)
2781 memmove(&view->line[pos + 1], &view->line[pos],
2782 (view->lines - pos) * sizeof(*line));
2784 line = &view->line[pos];
2791 if (!add_line_text(view, text, type))
2794 if (tree_lineno > view->lineno) {
2795 view->lineno = tree_lineno;
2803 tree_request(struct view *view, enum request request, struct line *line)
2805 enum open_flags flags;
2807 if (request != REQ_ENTER)
2810 /* Cleanup the stack if the tree view is at a different tree. */
2811 while (!*opt_path && tree_stack)
2812 pop_tree_stack_entry();
2814 switch (line->type) {
2816 /* Depending on whether it is a subdir or parent (updir?) link
2817 * mangle the path buffer. */
2818 if (line == &view->line[1] && *opt_path) {
2819 pop_tree_stack_entry();
2822 char *data = line->data;
2823 char *basename = data + SIZEOF_TREE_ATTR;
2825 push_tree_stack_entry(basename, view->lineno);
2828 /* Trees and subtrees share the same ID, so they are not not
2829 * unique like blobs. */
2830 flags = OPEN_RELOAD;
2831 request = REQ_VIEW_TREE;
2834 case LINE_TREE_FILE:
2835 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
2836 request = REQ_VIEW_BLOB;
2843 open_view(view, request, flags);
2844 if (request == REQ_VIEW_TREE) {
2845 view->lineno = tree_lineno;
2852 tree_select(struct view *view, struct line *line)
2854 char *text = line->data + STRING_SIZE("100644 blob ");
2856 if (line->type == LINE_TREE_FILE) {
2857 string_copy_rev(ref_blob, text);
2859 } else if (line->type != LINE_TREE_DIR) {
2863 string_copy_rev(view->ref, text);
2866 static struct view_ops tree_ops = {
2877 blob_read(struct view *view, char *line)
2879 return add_line_text(view, line, LINE_DEFAULT);
2882 static struct view_ops blob_ops = {
2901 char rev[SIZEOF_REV];
2905 char rev[SIZEOF_REV];
2907 char name[SIZEOF_STR];
2910 /* Get fields from the diff line:
2911 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
2914 status_get_diff(struct status *file, char *buf, size_t bufsize)
2916 char *old_mode = buf + 1;
2917 char *new_mode = buf + 8;
2918 char *old_rev = buf + 15;
2919 char *new_rev = buf + 56;
2920 char *status = buf + 97;
2922 if (bufsize != 99 ||
2923 old_mode[-1] != ':' ||
2924 new_mode[-1] != ' ' ||
2925 old_rev[-1] != ' ' ||
2926 new_rev[-1] != ' ' ||
2930 file->status = *status;
2932 string_copy_rev(file->old.rev, old_rev);
2933 string_copy_rev(file->new.rev, new_rev);
2935 file->old.mode = strtoul(old_mode, NULL, 8);
2936 file->new.mode = strtoul(new_mode, NULL, 8);
2944 status_run(struct view *view, const char cmd[], bool diff, enum line_type type)
2946 struct status *file = NULL;
2947 char buf[SIZEOF_STR * 4];
2951 pipe = popen(cmd, "r");
2955 add_line_data(view, NULL, type);
2957 while (!feof(pipe) && !ferror(pipe)) {
2961 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
2964 bufsize += readsize;
2966 /* Process while we have NUL chars. */
2967 while ((sep = memchr(buf, 0, bufsize))) {
2968 size_t sepsize = sep - buf + 1;
2971 if (!realloc_lines(view, view->line_size + 1))
2974 file = calloc(1, sizeof(*file));
2978 add_line_data(view, file, type);
2981 /* Parse diff info part. */
2985 } else if (!file->status) {
2986 if (!status_get_diff(file, buf, sepsize))
2990 memmove(buf, sep + 1, bufsize);
2992 sep = memchr(buf, 0, bufsize);
2995 sepsize = sep - buf + 1;
2998 /* git-ls-files just delivers a NUL separated
2999 * list of file names similar to the second half
3000 * of the git-diff-* output. */
3001 string_ncopy(file->name, buf, sepsize);
3003 memmove(buf, sep + 1, bufsize);
3014 if (!view->line[view->lines - 1].data)
3015 add_line_data(view, NULL, LINE_STAT_NONE);
3021 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --cached HEAD"
3022 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
3023 #define STATUS_LIST_OTHER_CMD \
3024 "git ls-files -z --others --exclude-per-directory=.gitignore"
3026 #define STATUS_DIFF_SHOW_CMD \
3027 "git diff --root --patch-with-stat --find-copies-harder -B -C %s -- %s 2>/dev/null"
3029 /* First parse staged info using git-diff-index(1), then parse unstaged
3030 * info using git-diff-files(1), and finally untracked files using
3031 * git-ls-files(1). */
3033 status_open(struct view *view)
3035 struct stat statbuf;
3036 char exclude[SIZEOF_STR];
3037 char cmd[SIZEOF_STR];
3040 for (i = 0; i < view->lines; i++)
3041 free(view->line[i].data);
3043 view->lines = view->line_size = 0;
3046 if (!realloc_lines(view, view->line_size + 6))
3049 if (!string_format(exclude, "%s/info/exclude", opt_git_dir))
3052 string_copy(cmd, STATUS_LIST_OTHER_CMD);
3054 if (stat(exclude, &statbuf) >= 0) {
3055 size_t cmdsize = strlen(cmd);
3057 if (!string_format_from(cmd, &cmdsize, " %s", "--exclude-from=") ||
3058 sq_quote(cmd, cmdsize, exclude) >= sizeof(cmd))
3062 if (!status_run(view, STATUS_DIFF_INDEX_CMD, TRUE, LINE_STAT_STAGED) ||
3063 !status_run(view, STATUS_DIFF_FILES_CMD, TRUE, LINE_STAT_UNSTAGED) ||
3064 !status_run(view, cmd, FALSE, LINE_STAT_UNTRACKED))
3071 status_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
3073 struct status *status = line->data;
3075 wmove(view->win, lineno, 0);
3078 wattrset(view->win, get_line_attr(LINE_CURSOR));
3079 wchgat(view->win, -1, 0, LINE_CURSOR, NULL);
3081 } else if (!status && line->type != LINE_STAT_NONE) {
3082 wattrset(view->win, get_line_attr(LINE_STAT_SECTION));
3083 wchgat(view->win, -1, 0, LINE_STAT_SECTION, NULL);
3086 wattrset(view->win, get_line_attr(line->type));
3092 switch (line->type) {
3093 case LINE_STAT_STAGED:
3094 text = "Changes to be committed:";
3097 case LINE_STAT_UNSTAGED:
3098 text = "Changed but not updated:";
3101 case LINE_STAT_UNTRACKED:
3102 text = "Untracked files:";
3105 case LINE_STAT_NONE:
3106 text = " (no files)";
3113 waddstr(view->win, text);
3117 waddch(view->win, status->status);
3119 wattrset(view->win, A_NORMAL);
3120 wmove(view->win, lineno, 4);
3121 waddstr(view->win, status->name);
3127 status_enter(struct view *view, struct line *line)
3129 struct status *status = line->data;
3130 char path[SIZEOF_STR] = "";
3134 if (line->type == LINE_STAT_NONE ||
3135 (!status && line[1].type == LINE_STAT_NONE)) {
3136 report("No file to diff");
3140 if (status && sq_quote(path, 0, status->name) >= sizeof(path))
3144 line->type != LINE_STAT_UNTRACKED &&
3145 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
3148 switch (line->type) {
3149 case LINE_STAT_STAGED:
3150 if (!string_format_from(opt_cmd, &cmdsize, STATUS_DIFF_SHOW_CMD,
3154 info = "Staged changes to %s";
3156 info = "Staged changes";
3159 case LINE_STAT_UNSTAGED:
3160 if (!string_format_from(opt_cmd, &cmdsize, STATUS_DIFF_SHOW_CMD,
3164 info = "Unstaged changes to %s";
3166 info = "Unstaged changes";
3169 case LINE_STAT_UNTRACKED:
3175 report("No file to show");
3179 opt_pipe = fopen(status->name, "r");
3180 info = "Untracked file %s";
3187 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | OPEN_SPLIT);
3188 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
3189 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, status->name);
3197 status_update_file(struct view *view, struct status *status, enum line_type type)
3199 char cmd[SIZEOF_STR];
3200 char buf[SIZEOF_STR];
3207 type != LINE_STAT_UNTRACKED &&
3208 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
3212 case LINE_STAT_STAGED:
3213 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
3219 string_add(cmd, cmdsize, "git update-index -z --index-info");
3222 case LINE_STAT_UNSTAGED:
3223 case LINE_STAT_UNTRACKED:
3224 if (!string_format_from(buf, &bufsize, "%s%c", status->name, 0))
3227 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
3234 pipe = popen(cmd, "w");
3238 while (!ferror(pipe) && written < bufsize) {
3239 written += fwrite(buf + written, 1, bufsize - written, pipe);
3244 if (written != bufsize)
3251 status_update(struct view *view)
3253 struct line *line = &view->line[view->lineno];
3255 assert(view->lines);
3258 while (++line < view->line + view->lines && line->data) {
3259 if (!status_update_file(view, line->data, line->type))
3260 report("Failed to update file status");
3263 if (!line[-1].data) {
3264 report("Nothing to update");
3268 } else if (!status_update_file(view, line->data, line->type)) {
3269 report("Failed to update file status");
3272 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
3276 status_request(struct view *view, enum request request, struct line *line)
3278 struct status *status = line->data;
3281 case REQ_STATUS_UPDATE:
3282 status_update(view);
3289 open_editor(view, status->name);
3293 status_enter(view, line);
3304 status_select(struct view *view, struct line *line)
3306 struct status *status = line->data;
3307 char file[SIZEOF_STR] = "all files";
3310 if (status && !string_format(file, "'%s'", status->name))
3313 if (!status && line[1].type == LINE_STAT_NONE)
3316 switch (line->type) {
3317 case LINE_STAT_STAGED:
3318 text = "Press %s to unstage %s for commit";
3321 case LINE_STAT_UNSTAGED:
3322 text = "Press %s to stage %s for commit";
3325 case LINE_STAT_UNTRACKED:
3326 text = "Press %s to stage %s for addition";
3329 case LINE_STAT_NONE:
3330 text = "Nothing to update";
3337 string_format(view->ref, text, get_key(REQ_STATUS_UPDATE), file);
3341 status_grep(struct view *view, struct line *line)
3343 struct status *status = line->data;
3344 enum { S_STATUS, S_NAME, S_END } state;
3351 for (state = S_STATUS; state < S_END; state++) {
3355 case S_NAME: text = status->name; break;
3357 buf[0] = status->status;
3365 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3372 static struct view_ops status_ops = {
3382 static struct view_ops stage_ops = {
3397 char id[SIZEOF_REV]; /* SHA1 ID. */
3398 char title[128]; /* First line of the commit message. */
3399 char author[75]; /* Author of the commit. */
3400 struct tm time; /* Date from the author ident. */
3401 struct ref **refs; /* Repository references. */
3402 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
3403 size_t graph_size; /* The width of the graph array. */
3406 /* Size of rev graph with no "padding" columns */
3407 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
3410 struct rev_graph *prev, *next, *parents;
3411 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
3413 struct commit *commit;
3417 /* Parents of the commit being visualized. */
3418 static struct rev_graph graph_parents[4];
3420 /* The current stack of revisions on the graph. */
3421 static struct rev_graph graph_stacks[4] = {
3422 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
3423 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
3424 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
3425 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
3429 graph_parent_is_merge(struct rev_graph *graph)
3431 return graph->parents->size > 1;
3435 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
3437 struct commit *commit = graph->commit;
3439 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
3440 commit->graph[commit->graph_size++] = symbol;
3444 done_rev_graph(struct rev_graph *graph)
3446 if (graph_parent_is_merge(graph) &&
3447 graph->pos < graph->size - 1 &&
3448 graph->next->size == graph->size + graph->parents->size - 1) {
3449 size_t i = graph->pos + graph->parents->size - 1;
3451 graph->commit->graph_size = i * 2;
3452 while (i < graph->next->size - 1) {
3453 append_to_rev_graph(graph, ' ');
3454 append_to_rev_graph(graph, '\\');
3459 graph->size = graph->pos = 0;
3460 graph->commit = NULL;
3461 memset(graph->parents, 0, sizeof(*graph->parents));
3465 push_rev_graph(struct rev_graph *graph, char *parent)
3469 /* "Collapse" duplicate parents lines.
3471 * FIXME: This needs to also update update the drawn graph but
3472 * for now it just serves as a method for pruning graph lines. */
3473 for (i = 0; i < graph->size; i++)
3474 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
3477 if (graph->size < SIZEOF_REVITEMS) {
3478 string_copy_rev(graph->rev[graph->size++], parent);
3483 get_rev_graph_symbol(struct rev_graph *graph)
3487 if (graph->parents->size == 0)
3488 symbol = REVGRAPH_INIT;
3489 else if (graph_parent_is_merge(graph))
3490 symbol = REVGRAPH_MERGE;
3491 else if (graph->pos >= graph->size)
3492 symbol = REVGRAPH_BRANCH;
3494 symbol = REVGRAPH_COMMIT;
3500 draw_rev_graph(struct rev_graph *graph)
3503 chtype separator, line;
3505 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
3506 static struct rev_filler fillers[] = {
3507 { ' ', REVGRAPH_LINE },
3512 chtype symbol = get_rev_graph_symbol(graph);
3513 struct rev_filler *filler;
3516 filler = &fillers[DEFAULT];
3518 for (i = 0; i < graph->pos; i++) {
3519 append_to_rev_graph(graph, filler->line);
3520 if (graph_parent_is_merge(graph->prev) &&
3521 graph->prev->pos == i)
3522 filler = &fillers[RSHARP];
3524 append_to_rev_graph(graph, filler->separator);
3527 /* Place the symbol for this revision. */
3528 append_to_rev_graph(graph, symbol);
3530 if (graph->prev->size > graph->size)
3531 filler = &fillers[RDIAG];
3533 filler = &fillers[DEFAULT];
3537 for (; i < graph->size; i++) {
3538 append_to_rev_graph(graph, filler->separator);
3539 append_to_rev_graph(graph, filler->line);
3540 if (graph_parent_is_merge(graph->prev) &&
3541 i < graph->prev->pos + graph->parents->size)
3542 filler = &fillers[RSHARP];
3543 if (graph->prev->size > graph->size)
3544 filler = &fillers[LDIAG];
3547 if (graph->prev->size > graph->size) {
3548 append_to_rev_graph(graph, filler->separator);
3549 if (filler->line != ' ')
3550 append_to_rev_graph(graph, filler->line);
3554 /* Prepare the next rev graph */
3556 prepare_rev_graph(struct rev_graph *graph)
3560 /* First, traverse all lines of revisions up to the active one. */
3561 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
3562 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
3565 push_rev_graph(graph->next, graph->rev[graph->pos]);
3568 /* Interleave the new revision parent(s). */
3569 for (i = 0; i < graph->parents->size; i++)
3570 push_rev_graph(graph->next, graph->parents->rev[i]);
3572 /* Lastly, put any remaining revisions. */
3573 for (i = graph->pos + 1; i < graph->size; i++)
3574 push_rev_graph(graph->next, graph->rev[i]);
3578 update_rev_graph(struct rev_graph *graph)
3580 /* If this is the finalizing update ... */
3582 prepare_rev_graph(graph);
3584 /* Graph visualization needs a one rev look-ahead,
3585 * so the first update doesn't visualize anything. */
3586 if (!graph->prev->commit)
3589 draw_rev_graph(graph->prev);
3590 done_rev_graph(graph->prev->prev);
3599 main_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
3601 char buf[DATE_COLS + 1];
3602 struct commit *commit = line->data;
3603 enum line_type type;
3609 if (!*commit->author)
3612 wmove(view->win, lineno, col);
3616 wattrset(view->win, get_line_attr(type));
3617 wchgat(view->win, -1, 0, type, NULL);
3620 type = LINE_MAIN_COMMIT;
3621 wattrset(view->win, get_line_attr(LINE_MAIN_DATE));
3624 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time);
3625 waddnstr(view->win, buf, timelen);
3626 waddstr(view->win, " ");
3629 wmove(view->win, lineno, col);
3630 if (type != LINE_CURSOR)
3631 wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR));
3634 authorlen = utf8_length(commit->author, AUTHOR_COLS - 2, &col, &trimmed);
3636 authorlen = strlen(commit->author);
3637 if (authorlen > AUTHOR_COLS - 2) {
3638 authorlen = AUTHOR_COLS - 2;
3644 waddnstr(view->win, commit->author, authorlen);
3645 if (type != LINE_CURSOR)
3646 wattrset(view->win, get_line_attr(LINE_MAIN_DELIM));
3647 waddch(view->win, '~');
3649 waddstr(view->win, commit->author);
3653 if (type != LINE_CURSOR)
3654 wattrset(view->win, A_NORMAL);
3656 if (opt_rev_graph && commit->graph_size) {
3659 wmove(view->win, lineno, col);
3660 /* Using waddch() instead of waddnstr() ensures that
3661 * they'll be rendered correctly for the cursor line. */
3662 for (i = 0; i < commit->graph_size; i++)
3663 waddch(view->win, commit->graph[i]);
3665 waddch(view->win, ' ');
3666 col += commit->graph_size + 1;
3669 wmove(view->win, lineno, col);
3675 if (type == LINE_CURSOR)
3677 else if (commit->refs[i]->tag)
3678 wattrset(view->win, get_line_attr(LINE_MAIN_TAG));
3679 else if (commit->refs[i]->remote)
3680 wattrset(view->win, get_line_attr(LINE_MAIN_REMOTE));
3682 wattrset(view->win, get_line_attr(LINE_MAIN_REF));
3683 waddstr(view->win, "[");
3684 waddstr(view->win, commit->refs[i]->name);
3685 waddstr(view->win, "]");
3686 if (type != LINE_CURSOR)
3687 wattrset(view->win, A_NORMAL);
3688 waddstr(view->win, " ");
3689 col += strlen(commit->refs[i]->name) + STRING_SIZE("[] ");
3690 } while (commit->refs[i++]->next);
3693 if (type != LINE_CURSOR)
3694 wattrset(view->win, get_line_attr(type));
3697 int titlelen = strlen(commit->title);
3699 if (col + titlelen > view->width)
3700 titlelen = view->width - col;
3702 waddnstr(view->win, commit->title, titlelen);
3708 /* Reads git log --pretty=raw output and parses it into the commit struct. */
3710 main_read(struct view *view, char *line)
3712 static struct rev_graph *graph = graph_stacks;
3713 enum line_type type;
3714 struct commit *commit;
3717 update_rev_graph(graph);
3721 type = get_line_type(line);
3722 if (type == LINE_COMMIT) {
3723 commit = calloc(1, sizeof(struct commit));
3727 string_copy_rev(commit->id, line + STRING_SIZE("commit "));
3728 commit->refs = get_refs(commit->id);
3729 graph->commit = commit;
3730 add_line_data(view, commit, LINE_MAIN_COMMIT);
3736 commit = view->line[view->lines - 1].data;
3740 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
3745 /* Parse author lines where the name may be empty:
3746 * author <email@address.tld> 1138474660 +0100
3748 char *ident = line + STRING_SIZE("author ");
3749 char *nameend = strchr(ident, '<');
3750 char *emailend = strchr(ident, '>');
3752 if (!nameend || !emailend)
3755 update_rev_graph(graph);
3756 graph = graph->next;
3758 *nameend = *emailend = 0;
3759 ident = chomp_string(ident);
3761 ident = chomp_string(nameend + 1);
3766 string_ncopy(commit->author, ident, strlen(ident));
3768 /* Parse epoch and timezone */
3769 if (emailend[1] == ' ') {
3770 char *secs = emailend + 2;
3771 char *zone = strchr(secs, ' ');
3772 time_t time = (time_t) atol(secs);
3774 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
3778 tz = ('0' - zone[1]) * 60 * 60 * 10;
3779 tz += ('0' - zone[2]) * 60 * 60;
3780 tz += ('0' - zone[3]) * 60;
3781 tz += ('0' - zone[4]) * 60;
3789 gmtime_r(&time, &commit->time);
3794 /* Fill in the commit title if it has not already been set. */
3795 if (commit->title[0])
3798 /* Require titles to start with a non-space character at the
3799 * offset used by git log. */
3800 if (strncmp(line, " ", 4))
3803 /* Well, if the title starts with a whitespace character,
3804 * try to be forgiving. Otherwise we end up with no title. */
3805 while (isspace(*line))
3809 /* FIXME: More graceful handling of titles; append "..." to
3810 * shortened titles, etc. */
3812 string_ncopy(commit->title, line, strlen(line));
3819 main_request(struct view *view, enum request request, struct line *line)
3821 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3823 if (request == REQ_ENTER)
3824 open_view(view, REQ_VIEW_DIFF, flags);
3832 main_grep(struct view *view, struct line *line)
3834 struct commit *commit = line->data;
3835 enum { S_TITLE, S_AUTHOR, S_DATE, S_END } state;
3836 char buf[DATE_COLS + 1];
3839 for (state = S_TITLE; state < S_END; state++) {
3843 case S_TITLE: text = commit->title; break;
3844 case S_AUTHOR: text = commit->author; break;
3846 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
3855 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3863 main_select(struct view *view, struct line *line)
3865 struct commit *commit = line->data;
3867 string_copy_rev(view->ref, commit->id);
3868 string_copy_rev(ref_commit, view->ref);
3871 static struct view_ops main_ops = {
3883 * Unicode / UTF-8 handling
3885 * NOTE: Much of the following code for dealing with unicode is derived from
3886 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
3887 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
3890 /* I've (over)annotated a lot of code snippets because I am not entirely
3891 * confident that the approach taken by this small UTF-8 interface is correct.
3895 unicode_width(unsigned long c)
3898 (c <= 0x115f /* Hangul Jamo */
3901 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
3903 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
3904 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
3905 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
3906 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
3907 || (c >= 0xffe0 && c <= 0xffe6)
3908 || (c >= 0x20000 && c <= 0x2fffd)
3909 || (c >= 0x30000 && c <= 0x3fffd)))
3915 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
3916 * Illegal bytes are set one. */
3917 static const unsigned char utf8_bytes[256] = {
3918 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,
3919 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,
3920 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,
3921 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,
3922 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,
3923 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,
3924 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,
3925 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,
3928 /* Decode UTF-8 multi-byte representation into a unicode character. */
3929 static inline unsigned long
3930 utf8_to_unicode(const char *string, size_t length)
3932 unsigned long unicode;
3936 unicode = string[0];
3939 unicode = (string[0] & 0x1f) << 6;
3940 unicode += (string[1] & 0x3f);
3943 unicode = (string[0] & 0x0f) << 12;
3944 unicode += ((string[1] & 0x3f) << 6);
3945 unicode += (string[2] & 0x3f);
3948 unicode = (string[0] & 0x0f) << 18;
3949 unicode += ((string[1] & 0x3f) << 12);
3950 unicode += ((string[2] & 0x3f) << 6);
3951 unicode += (string[3] & 0x3f);
3954 unicode = (string[0] & 0x0f) << 24;
3955 unicode += ((string[1] & 0x3f) << 18);
3956 unicode += ((string[2] & 0x3f) << 12);
3957 unicode += ((string[3] & 0x3f) << 6);
3958 unicode += (string[4] & 0x3f);
3961 unicode = (string[0] & 0x01) << 30;
3962 unicode += ((string[1] & 0x3f) << 24);
3963 unicode += ((string[2] & 0x3f) << 18);
3964 unicode += ((string[3] & 0x3f) << 12);
3965 unicode += ((string[4] & 0x3f) << 6);
3966 unicode += (string[5] & 0x3f);
3969 die("Invalid unicode length");
3972 /* Invalid characters could return the special 0xfffd value but NUL
3973 * should be just as good. */
3974 return unicode > 0xffff ? 0 : unicode;
3977 /* Calculates how much of string can be shown within the given maximum width
3978 * and sets trimmed parameter to non-zero value if all of string could not be
3981 * Additionally, adds to coloffset how many many columns to move to align with
3982 * the expected position. Takes into account how multi-byte and double-width
3983 * characters will effect the cursor position.
3985 * Returns the number of bytes to output from string to satisfy max_width. */
3987 utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed)
3989 const char *start = string;
3990 const char *end = strchr(string, '\0');
3996 while (string < end) {
3997 int c = *(unsigned char *) string;
3998 unsigned char bytes = utf8_bytes[c];
4000 unsigned long unicode;
4002 if (string + bytes > end)
4005 /* Change representation to figure out whether
4006 * it is a single- or double-width character. */
4008 unicode = utf8_to_unicode(string, bytes);
4009 /* FIXME: Graceful handling of invalid unicode character. */
4013 ucwidth = unicode_width(unicode);
4015 if (width > max_width) {
4020 /* The column offset collects the differences between the
4021 * number of bytes encoding a character and the number of
4022 * columns will be used for rendering said character.
4024 * So if some character A is encoded in 2 bytes, but will be
4025 * represented on the screen using only 1 byte this will and up
4026 * adding 1 to the multi-byte column offset.
4028 * Assumes that no double-width character can be encoding in
4029 * less than two bytes. */
4030 if (bytes > ucwidth)
4031 mbwidth += bytes - ucwidth;
4036 *coloffset += mbwidth;
4038 return string - start;
4046 /* Whether or not the curses interface has been initialized. */
4047 static bool cursed = FALSE;
4049 /* The status window is used for polling keystrokes. */
4050 static WINDOW *status_win;
4052 static bool status_empty = TRUE;
4054 /* Update status and title window. */
4056 report(const char *msg, ...)
4058 struct view *view = display[current_view];
4063 if (!status_empty || *msg) {
4066 va_start(args, msg);
4068 wmove(status_win, 0, 0);
4070 vwprintw(status_win, msg, args);
4071 status_empty = FALSE;
4073 status_empty = TRUE;
4075 wclrtoeol(status_win);
4076 wrefresh(status_win);
4081 update_view_title(view);
4082 update_display_cursor(view);
4085 /* Controls when nodelay should be in effect when polling user input. */
4087 set_nonblocking_input(bool loading)
4089 static unsigned int loading_views;
4091 if ((loading == FALSE && loading_views-- == 1) ||
4092 (loading == TRUE && loading_views++ == 0))
4093 nodelay(status_win, loading);
4101 /* Initialize the curses library */
4102 if (isatty(STDIN_FILENO)) {
4103 cursed = !!initscr();
4105 /* Leave stdin and stdout alone when acting as a pager. */
4106 FILE *io = fopen("/dev/tty", "r+");
4109 die("Failed to open /dev/tty");
4110 cursed = !!newterm(NULL, io, io);
4114 die("Failed to initialize curses");
4116 nonl(); /* Tell curses not to do NL->CR/NL on output */
4117 cbreak(); /* Take input chars one at a time, no wait for \n */
4118 noecho(); /* Don't echo input */
4119 leaveok(stdscr, TRUE);
4124 getmaxyx(stdscr, y, x);
4125 status_win = newwin(1, 0, y - 1, 0);
4127 die("Failed to create status window");
4129 /* Enable keyboard mapping */
4130 keypad(status_win, TRUE);
4131 wbkgdset(status_win, get_line_attr(LINE_STATUS));
4135 read_prompt(const char *prompt)
4137 enum { READING, STOP, CANCEL } status = READING;
4138 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
4141 while (status == READING) {
4147 foreach_view (view, i)
4152 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
4153 wclrtoeol(status_win);
4155 /* Refresh, accept single keystroke of input */
4156 key = wgetch(status_win);
4161 status = pos ? STOP : CANCEL;
4179 if (pos >= sizeof(buf)) {
4180 report("Input string too long");
4185 buf[pos++] = (char) key;
4189 /* Clear the status window */
4190 status_empty = FALSE;
4193 if (status == CANCEL)
4202 * Repository references
4205 static struct ref *refs;
4206 static size_t refs_size;
4208 /* Id <-> ref store */
4209 static struct ref ***id_refs;
4210 static size_t id_refs_size;
4212 static struct ref **
4215 struct ref ***tmp_id_refs;
4216 struct ref **ref_list = NULL;
4217 size_t ref_list_size = 0;
4220 for (i = 0; i < id_refs_size; i++)
4221 if (!strcmp(id, id_refs[i][0]->id))
4224 tmp_id_refs = realloc(id_refs, (id_refs_size + 1) * sizeof(*id_refs));
4228 id_refs = tmp_id_refs;
4230 for (i = 0; i < refs_size; i++) {
4233 if (strcmp(id, refs[i].id))
4236 tmp = realloc(ref_list, (ref_list_size + 1) * sizeof(*ref_list));
4244 if (ref_list_size > 0)
4245 ref_list[ref_list_size - 1]->next = 1;
4246 ref_list[ref_list_size] = &refs[i];
4248 /* XXX: The properties of the commit chains ensures that we can
4249 * safely modify the shared ref. The repo references will
4250 * always be similar for the same id. */
4251 ref_list[ref_list_size]->next = 0;
4256 id_refs[id_refs_size++] = ref_list;
4262 read_ref(char *id, size_t idlen, char *name, size_t namelen)
4266 bool remote = FALSE;
4268 if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) {
4269 /* Commits referenced by tags has "^{}" appended. */
4270 if (name[namelen - 1] != '}')
4273 while (namelen > 0 && name[namelen] != '^')
4277 namelen -= STRING_SIZE("refs/tags/");
4278 name += STRING_SIZE("refs/tags/");
4280 } else if (!strncmp(name, "refs/remotes/", STRING_SIZE("refs/remotes/"))) {
4282 namelen -= STRING_SIZE("refs/remotes/");
4283 name += STRING_SIZE("refs/remotes/");
4285 } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
4286 namelen -= STRING_SIZE("refs/heads/");
4287 name += STRING_SIZE("refs/heads/");
4289 } else if (!strcmp(name, "HEAD")) {
4293 refs = realloc(refs, sizeof(*refs) * (refs_size + 1));
4297 ref = &refs[refs_size++];
4298 ref->name = malloc(namelen + 1);
4302 strncpy(ref->name, name, namelen);
4303 ref->name[namelen] = 0;
4305 ref->remote = remote;
4306 string_copy_rev(ref->id, id);
4314 const char *cmd_env = getenv("TIG_LS_REMOTE");
4315 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
4317 return read_properties(popen(cmd, "r"), "\t", read_ref);
4321 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
4323 if (!strcmp(name, "i18n.commitencoding"))
4324 string_ncopy(opt_encoding, value, valuelen);
4326 if (!strcmp(name, "core.editor"))
4327 string_ncopy(opt_editor, value, valuelen);
4333 load_repo_config(void)
4335 return read_properties(popen(GIT_CONFIG " --list", "r"),
4336 "=", read_repo_config_option);
4340 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
4342 if (!opt_git_dir[0])
4343 string_ncopy(opt_git_dir, name, namelen);
4345 string_ncopy(opt_cdup, name, namelen);
4349 /* XXX: The line outputted by "--show-cdup" can be empty so the option
4350 * must be the last one! */
4352 load_repo_info(void)
4354 return read_properties(popen("git rev-parse --git-dir --show-cdup 2>/dev/null", "r"),
4355 "=", read_repo_info);
4359 read_properties(FILE *pipe, const char *separators,
4360 int (*read_property)(char *, size_t, char *, size_t))
4362 char buffer[BUFSIZ];
4369 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
4374 name = chomp_string(name);
4375 namelen = strcspn(name, separators);
4377 if (name[namelen]) {
4379 value = chomp_string(name + namelen + 1);
4380 valuelen = strlen(value);
4387 state = read_property(name, namelen, value, valuelen);
4390 if (state != ERR && ferror(pipe))
4403 static void __NORETURN
4406 /* XXX: Restore tty modes and let the OS cleanup the rest! */
4412 static void __NORETURN
4413 die(const char *err, ...)
4419 va_start(args, err);
4420 fputs("tig: ", stderr);
4421 vfprintf(stderr, err, args);
4422 fputs("\n", stderr);
4429 main(int argc, char *argv[])
4432 enum request request;
4435 signal(SIGINT, quit);
4437 if (setlocale(LC_ALL, "")) {
4438 char *codeset = nl_langinfo(CODESET);
4440 string_ncopy(opt_codeset, codeset, strlen(codeset));
4443 if (load_repo_info() == ERR)
4444 die("Failed to load repo info.");
4446 /* Require a git repository unless when running in pager mode. */
4447 if (!opt_git_dir[0])
4448 die("Not a git repository");
4450 if (load_options() == ERR)
4451 die("Failed to load user config.");
4453 /* Load the repo config file so options can be overwritten from
4454 * the command line. */
4455 if (load_repo_config() == ERR)
4456 die("Failed to load repo config.");
4458 if (!parse_options(argc, argv))
4461 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
4462 opt_iconv = iconv_open(opt_codeset, opt_encoding);
4463 if (opt_iconv == ICONV_NONE)
4464 die("Failed to initialize character set conversion");
4467 if (load_refs() == ERR)
4468 die("Failed to load refs.");
4470 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
4471 view->cmd_env = getenv(view->cmd_env);
4473 request = opt_request;
4477 while (view_driver(display[current_view], request)) {
4481 foreach_view (view, i)
4484 /* Refresh, accept single keystroke of input */
4485 key = wgetch(status_win);
4487 /* wgetch() with nodelay() enabled returns ERR when there's no
4494 request = get_keybinding(display[current_view]->keymap, key);
4496 /* Some low-level request handling. This keeps access to
4497 * status_win restricted. */
4501 char *cmd = read_prompt(":");
4503 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
4504 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
4505 opt_request = REQ_VIEW_DIFF;
4507 opt_request = REQ_VIEW_PAGER;
4516 case REQ_SEARCH_BACK:
4518 const char *prompt = request == REQ_SEARCH
4520 char *search = read_prompt(prompt);
4523 string_ncopy(opt_search, search, strlen(search));
4528 case REQ_SCREEN_RESIZE:
4532 getmaxyx(stdscr, height, width);
4534 /* Resize the status view and let the view driver take
4535 * care of resizing the displayed views. */
4536 wresize(status_win, 1, width);
4537 mvwin(status_win, height - 1, 0);
4538 wrefresh(status_win);