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 VERSION "unknown-version"
30 #include <sys/types.h>
44 #define __NORETURN __attribute__((__noreturn__))
49 static void __NORETURN die(const char *err, ...);
50 static void report(const char *msg, ...);
51 static int read_properties(FILE *pipe, const char *separators, int (*read)(char *, size_t, char *, size_t));
52 static void set_nonblocking_input(bool loading);
53 static size_t utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed);
55 #define ABS(x) ((x) >= 0 ? (x) : -(x))
56 #define MIN(x, y) ((x) < (y) ? (x) : (y))
58 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
59 #define STRING_SIZE(x) (sizeof(x) - 1)
61 #define SIZEOF_STR 1024 /* Default string size. */
62 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
63 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL */
67 #define REVGRAPH_INIT 'I'
68 #define REVGRAPH_MERGE 'M'
69 #define REVGRAPH_BRANCH '+'
70 #define REVGRAPH_COMMIT '*'
71 #define REVGRAPH_LINE '|'
73 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
75 /* This color name can be used to refer to the default term colors. */
76 #define COLOR_DEFAULT (-1)
78 #define ICONV_NONE ((iconv_t) -1)
80 /* The format and size of the date column in the main view. */
81 #define DATE_FORMAT "%Y-%m-%d %H:%M"
82 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
84 #define AUTHOR_COLS 20
86 /* The default interval between line numbers. */
87 #define NUMBER_INTERVAL 1
91 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
93 #define TIG_LS_REMOTE \
94 "git ls-remote $(git rev-parse --git-dir) 2>/dev/null"
96 #define TIG_DIFF_CMD \
97 "git show --root --patch-with-stat --find-copies-harder -B -C %s 2>/dev/null"
100 "git log --cc --stat -n100 %s 2>/dev/null"
102 #define TIG_MAIN_CMD \
103 "git log --topo-order --pretty=raw %s 2>/dev/null"
105 #define TIG_TREE_CMD \
108 #define TIG_BLOB_CMD \
109 "git cat-file blob %s"
111 /* XXX: Needs to be defined to the empty string. */
112 #define TIG_HELP_CMD ""
113 #define TIG_PAGER_CMD ""
114 #define TIG_STATUS_CMD ""
116 /* Some ascii-shorthands fitted into the ncurses namespace. */
118 #define KEY_RETURN '\r'
123 char *name; /* Ref name; tag or head names are shortened. */
124 char id[SIZEOF_REV]; /* Commit SHA1 ID */
125 unsigned int tag:1; /* Is it a tag? */
126 unsigned int remote:1; /* Is it a remote ref? */
127 unsigned int next:1; /* For ref lists: are there more refs? */
130 static struct ref **get_refs(char *id);
139 set_from_int_map(struct int_map *map, size_t map_size,
140 int *value, const char *name, int namelen)
145 for (i = 0; i < map_size; i++)
146 if (namelen == map[i].namelen &&
147 !strncasecmp(name, map[i].name, namelen)) {
148 *value = map[i].value;
161 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
163 if (srclen > dstlen - 1)
166 strncpy(dst, src, srclen);
170 /* Shorthands for safely copying into a fixed buffer. */
172 #define string_copy(dst, src) \
173 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
175 #define string_ncopy(dst, src, srclen) \
176 string_ncopy_do(dst, sizeof(dst), src, srclen)
178 #define string_copy_rev(dst, src) \
179 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
181 #define string_add(dst, from, src) \
182 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
185 chomp_string(char *name)
189 while (isspace(*name))
192 namelen = strlen(name) - 1;
193 while (namelen > 0 && isspace(name[namelen]))
200 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
203 size_t pos = bufpos ? *bufpos : 0;
206 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
212 return pos >= bufsize ? FALSE : TRUE;
215 #define string_format(buf, fmt, args...) \
216 string_nformat(buf, sizeof(buf), NULL, fmt, args)
218 #define string_format_from(buf, from, fmt, args...) \
219 string_nformat(buf, sizeof(buf), from, fmt, args)
222 string_enum_compare(const char *str1, const char *str2, int len)
226 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
228 /* Diff-Header == DIFF_HEADER */
229 for (i = 0; i < len; i++) {
230 if (toupper(str1[i]) == toupper(str2[i]))
233 if (string_enum_sep(str1[i]) &&
234 string_enum_sep(str2[i]))
237 return str1[i] - str2[i];
245 * NOTE: The following is a slightly modified copy of the git project's shell
246 * quoting routines found in the quote.c file.
248 * Help to copy the thing properly quoted for the shell safety. any single
249 * quote is replaced with '\'', any exclamation point is replaced with '\!',
250 * and the whole thing is enclosed in a
253 * original sq_quote result
254 * name ==> name ==> 'name'
255 * a b ==> a b ==> 'a b'
256 * a'b ==> a'\''b ==> 'a'\''b'
257 * a!b ==> a'\!'b ==> 'a'\!'b'
261 sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src)
265 #define BUFPUT(x) do { if (bufsize < SIZEOF_STR) buf[bufsize++] = (x); } while (0)
268 while ((c = *src++)) {
269 if (c == '\'' || c == '!') {
280 if (bufsize < SIZEOF_STR)
292 /* XXX: Keep the view request first and in sync with views[]. */ \
293 REQ_GROUP("View switching") \
294 REQ_(VIEW_MAIN, "Show main view"), \
295 REQ_(VIEW_DIFF, "Show diff view"), \
296 REQ_(VIEW_LOG, "Show log view"), \
297 REQ_(VIEW_TREE, "Show tree view"), \
298 REQ_(VIEW_BLOB, "Show blob view"), \
299 REQ_(VIEW_HELP, "Show help page"), \
300 REQ_(VIEW_PAGER, "Show pager view"), \
301 REQ_(VIEW_STATUS, "Show status view"), \
303 REQ_GROUP("View manipulation") \
304 REQ_(ENTER, "Enter current line and scroll"), \
305 REQ_(NEXT, "Move to next"), \
306 REQ_(PREVIOUS, "Move to previous"), \
307 REQ_(VIEW_NEXT, "Move focus to next view"), \
308 REQ_(VIEW_CLOSE, "Close the current view"), \
309 REQ_(QUIT, "Close all views and quit"), \
311 REQ_GROUP("Cursor navigation") \
312 REQ_(MOVE_UP, "Move cursor one line up"), \
313 REQ_(MOVE_DOWN, "Move cursor one line down"), \
314 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
315 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
316 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
317 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
319 REQ_GROUP("Scrolling") \
320 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
321 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
322 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
323 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
325 REQ_GROUP("Searching") \
326 REQ_(SEARCH, "Search the view"), \
327 REQ_(SEARCH_BACK, "Search backwards in the view"), \
328 REQ_(FIND_NEXT, "Find next search match"), \
329 REQ_(FIND_PREV, "Find previous search match"), \
332 REQ_(NONE, "Do nothing"), \
333 REQ_(PROMPT, "Bring up the prompt"), \
334 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
335 REQ_(SCREEN_RESIZE, "Resize the screen"), \
336 REQ_(SHOW_VERSION, "Show version information"), \
337 REQ_(STOP_LOADING, "Stop all loading views"), \
338 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
339 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
340 REQ_(STATUS_UPDATE, "Update file status"), \
341 REQ_(EDIT, "Open in editor")
344 /* User action requests. */
346 #define REQ_GROUP(help)
347 #define REQ_(req, help) REQ_##req
349 /* Offset all requests to avoid conflicts with ncurses getch values. */
350 REQ_OFFSET = KEY_MAX + 1,
358 struct request_info {
359 enum request request;
365 static struct request_info req_info[] = {
366 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
367 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
374 get_request(const char *name)
376 int namelen = strlen(name);
379 for (i = 0; i < ARRAY_SIZE(req_info); i++)
380 if (req_info[i].namelen == namelen &&
381 !string_enum_compare(req_info[i].name, name, namelen))
382 return req_info[i].request;
392 static const char usage[] =
393 "tig " VERSION " (" __DATE__ ")\n"
395 "Usage: tig [options]\n"
396 " or: tig [options] [--] [git log options]\n"
397 " or: tig [options] log [git log options]\n"
398 " or: tig [options] diff [git diff options]\n"
399 " or: tig [options] show [git show options]\n"
400 " or: tig [options] < [git command output]\n"
403 " -l Start up in log view\n"
404 " -d Start up in diff view\n"
405 " -S Start up in status view\n"
406 " -n[I], --line-number[=I] Show line numbers with given interval\n"
407 " -b[N], --tab-size[=N] Set number of spaces for tab expansion\n"
408 " -- Mark end of tig options\n"
409 " -v, --version Show version and exit\n"
410 " -h, --help Show help message and exit\n";
412 /* Option and state variables. */
413 static bool opt_line_number = FALSE;
414 static bool opt_rev_graph = FALSE;
415 static int opt_num_interval = NUMBER_INTERVAL;
416 static int opt_tab_size = TABSIZE;
417 static enum request opt_request = REQ_VIEW_MAIN;
418 static char opt_cmd[SIZEOF_STR] = "";
419 static char opt_path[SIZEOF_STR] = "";
420 static FILE *opt_pipe = NULL;
421 static char opt_encoding[20] = "UTF-8";
422 static bool opt_utf8 = TRUE;
423 static char opt_codeset[20] = "UTF-8";
424 static iconv_t opt_iconv = ICONV_NONE;
425 static char opt_search[SIZEOF_STR] = "";
426 static char opt_cdup[SIZEOF_STR] = "";
427 static char opt_git_dir[SIZEOF_STR] = "";
428 static char opt_editor[SIZEOF_STR] = "";
436 check_option(char *opt, char short_name, char *name, enum option_type type, ...)
446 int namelen = strlen(name);
450 if (strncmp(opt, name, namelen))
453 if (opt[namelen] == '=')
454 value = opt + namelen + 1;
457 if (!short_name || opt[1] != short_name)
462 va_start(args, type);
463 if (type == OPT_INT) {
464 number = va_arg(args, int *);
466 *number = atoi(value);
473 /* Returns the index of log or diff command or -1 to exit. */
475 parse_options(int argc, char *argv[])
479 for (i = 1; i < argc; i++) {
482 if (!strcmp(opt, "log") ||
483 !strcmp(opt, "diff") ||
484 !strcmp(opt, "show")) {
485 opt_request = opt[0] == 'l'
486 ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
490 if (opt[0] && opt[0] != '-')
493 if (!strcmp(opt, "-l")) {
494 opt_request = REQ_VIEW_LOG;
498 if (!strcmp(opt, "-d")) {
499 opt_request = REQ_VIEW_DIFF;
503 if (!strcmp(opt, "-S")) {
504 opt_request = REQ_VIEW_STATUS;
508 if (check_option(opt, 'n', "line-number", OPT_INT, &opt_num_interval)) {
509 opt_line_number = TRUE;
513 if (check_option(opt, 'b', "tab-size", OPT_INT, &opt_tab_size)) {
514 opt_tab_size = MIN(opt_tab_size, TABSIZE);
518 if (check_option(opt, 'v', "version", OPT_NONE)) {
519 printf("tig version %s\n", VERSION);
523 if (check_option(opt, 'h', "help", OPT_NONE)) {
528 if (!strcmp(opt, "--")) {
533 die("unknown option '%s'\n\n%s", opt, usage);
536 if (!isatty(STDIN_FILENO)) {
537 opt_request = REQ_VIEW_PAGER;
540 } else if (i < argc) {
543 if (opt_request == REQ_VIEW_MAIN)
544 /* XXX: This is vulnerable to the user overriding
545 * options required for the main view parser. */
546 string_copy(opt_cmd, "git log --pretty=raw");
548 string_copy(opt_cmd, "git");
549 buf_size = strlen(opt_cmd);
551 while (buf_size < sizeof(opt_cmd) && i < argc) {
552 opt_cmd[buf_size++] = ' ';
553 buf_size = sq_quote(opt_cmd, buf_size, argv[i++]);
556 if (buf_size >= sizeof(opt_cmd))
557 die("command too long");
559 opt_cmd[buf_size] = 0;
562 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
570 * Line-oriented content detection.
574 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
575 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
576 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
577 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
578 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
579 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
580 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
581 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
582 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
583 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
584 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
585 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
586 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
587 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
588 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
589 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
590 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
591 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
592 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
593 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
594 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
595 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
596 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
597 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
598 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
599 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
600 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
601 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
602 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
603 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
604 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
605 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
606 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
607 LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
608 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
609 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
610 LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
611 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
612 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
613 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
614 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
615 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
616 LINE(STAT_SECTION, "", COLOR_DEFAULT, COLOR_BLUE, A_BOLD), \
617 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
618 LINE(STAT_STAGED, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
619 LINE(STAT_UNSTAGED,"", COLOR_YELLOW, COLOR_DEFAULT, 0), \
620 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0)
623 #define LINE(type, line, fg, bg, attr) \
630 const char *name; /* Option name. */
631 int namelen; /* Size of option name. */
632 const char *line; /* The start of line to match. */
633 int linelen; /* Size of string to match. */
634 int fg, bg, attr; /* Color and text attributes for the lines. */
637 static struct line_info line_info[] = {
638 #define LINE(type, line, fg, bg, attr) \
639 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
644 static enum line_type
645 get_line_type(char *line)
647 int linelen = strlen(line);
650 for (type = 0; type < ARRAY_SIZE(line_info); type++)
651 /* Case insensitive search matches Signed-off-by lines better. */
652 if (linelen >= line_info[type].linelen &&
653 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
660 get_line_attr(enum line_type type)
662 assert(type < ARRAY_SIZE(line_info));
663 return COLOR_PAIR(type) | line_info[type].attr;
666 static struct line_info *
667 get_line_info(char *name, int namelen)
671 for (type = 0; type < ARRAY_SIZE(line_info); type++)
672 if (namelen == line_info[type].namelen &&
673 !string_enum_compare(line_info[type].name, name, namelen))
674 return &line_info[type];
682 int default_bg = COLOR_BLACK;
683 int default_fg = COLOR_WHITE;
688 if (use_default_colors() != ERR) {
693 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
694 struct line_info *info = &line_info[type];
695 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
696 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
698 init_pair(type, fg, bg);
706 unsigned int selected:1;
708 void *data; /* User data */
718 enum request request;
719 struct keybinding *next;
722 static struct keybinding default_keybindings[] = {
724 { 'm', REQ_VIEW_MAIN },
725 { 'd', REQ_VIEW_DIFF },
726 { 'l', REQ_VIEW_LOG },
727 { 't', REQ_VIEW_TREE },
728 { 'f', REQ_VIEW_BLOB },
729 { 'p', REQ_VIEW_PAGER },
730 { 'h', REQ_VIEW_HELP },
731 { 'S', REQ_VIEW_STATUS },
733 /* View manipulation */
734 { 'q', REQ_VIEW_CLOSE },
735 { KEY_TAB, REQ_VIEW_NEXT },
736 { KEY_RETURN, REQ_ENTER },
737 { KEY_UP, REQ_PREVIOUS },
738 { KEY_DOWN, REQ_NEXT },
740 /* Cursor navigation */
741 { 'k', REQ_MOVE_UP },
742 { 'j', REQ_MOVE_DOWN },
743 { KEY_HOME, REQ_MOVE_FIRST_LINE },
744 { KEY_END, REQ_MOVE_LAST_LINE },
745 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
746 { ' ', REQ_MOVE_PAGE_DOWN },
747 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
748 { 'b', REQ_MOVE_PAGE_UP },
749 { '-', REQ_MOVE_PAGE_UP },
752 { KEY_IC, REQ_SCROLL_LINE_UP },
753 { KEY_DC, REQ_SCROLL_LINE_DOWN },
754 { 'w', REQ_SCROLL_PAGE_UP },
755 { 's', REQ_SCROLL_PAGE_DOWN },
759 { '?', REQ_SEARCH_BACK },
760 { 'n', REQ_FIND_NEXT },
761 { 'N', REQ_FIND_PREV },
765 { 'z', REQ_STOP_LOADING },
766 { 'v', REQ_SHOW_VERSION },
767 { 'r', REQ_SCREEN_REDRAW },
768 { '.', REQ_TOGGLE_LINENO },
769 { 'g', REQ_TOGGLE_REV_GRAPH },
771 { 'u', REQ_STATUS_UPDATE },
774 /* Using the ncurses SIGWINCH handler. */
775 { KEY_RESIZE, REQ_SCREEN_RESIZE },
778 #define KEYMAP_INFO \
790 #define KEYMAP_(name) KEYMAP_##name
795 static struct int_map keymap_table[] = {
796 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
801 #define set_keymap(map, name) \
802 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
804 static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)];
807 add_keybinding(enum keymap keymap, enum request request, int key)
809 struct keybinding *keybinding;
811 keybinding = calloc(1, sizeof(*keybinding));
813 die("Failed to allocate keybinding");
815 keybinding->alias = key;
816 keybinding->request = request;
817 keybinding->next = keybindings[keymap];
818 keybindings[keymap] = keybinding;
821 /* Looks for a key binding first in the given map, then in the generic map, and
822 * lastly in the default keybindings. */
824 get_keybinding(enum keymap keymap, int key)
826 struct keybinding *kbd;
829 for (kbd = keybindings[keymap]; kbd; kbd = kbd->next)
830 if (kbd->alias == key)
833 for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next)
834 if (kbd->alias == key)
837 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
838 if (default_keybindings[i].alias == key)
839 return default_keybindings[i].request;
841 return (enum request) key;
850 static struct key key_table[] = {
851 { "Enter", KEY_RETURN },
853 { "Backspace", KEY_BACKSPACE },
855 { "Escape", KEY_ESC },
856 { "Left", KEY_LEFT },
857 { "Right", KEY_RIGHT },
859 { "Down", KEY_DOWN },
860 { "Insert", KEY_IC },
861 { "Delete", KEY_DC },
863 { "Home", KEY_HOME },
865 { "PageUp", KEY_PPAGE },
866 { "PageDown", KEY_NPAGE },
876 { "F10", KEY_F(10) },
877 { "F11", KEY_F(11) },
878 { "F12", KEY_F(12) },
882 get_key_value(const char *name)
886 for (i = 0; i < ARRAY_SIZE(key_table); i++)
887 if (!strcasecmp(key_table[i].name, name))
888 return key_table[i].value;
890 if (strlen(name) == 1 && isprint(*name))
897 get_key(enum request request)
899 static char buf[BUFSIZ];
900 static char key_char[] = "'X'";
907 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
908 struct keybinding *keybinding = &default_keybindings[i];
912 if (keybinding->request != request)
915 for (key = 0; key < ARRAY_SIZE(key_table); key++)
916 if (key_table[key].value == keybinding->alias)
917 seq = key_table[key].name;
920 keybinding->alias < 127 &&
921 isprint(keybinding->alias)) {
922 key_char[1] = (char) keybinding->alias;
929 if (!string_format_from(buf, &pos, "%s%s", sep, seq))
930 return "Too many keybindings!";
939 * User config file handling.
942 static struct int_map color_map[] = {
943 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
955 #define set_color(color, name) \
956 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
958 static struct int_map attr_map[] = {
959 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
969 #define set_attribute(attr, name) \
970 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
972 static int config_lineno;
973 static bool config_errors;
974 static char *config_msg;
976 /* Wants: object fgcolor bgcolor [attr] */
978 option_color_command(int argc, char *argv[])
980 struct line_info *info;
982 if (argc != 3 && argc != 4) {
983 config_msg = "Wrong number of arguments given to color command";
987 info = get_line_info(argv[0], strlen(argv[0]));
989 config_msg = "Unknown color name";
993 if (set_color(&info->fg, argv[1]) == ERR ||
994 set_color(&info->bg, argv[2]) == ERR) {
995 config_msg = "Unknown color";
999 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1000 config_msg = "Unknown attribute";
1007 /* Wants: name = value */
1009 option_set_command(int argc, char *argv[])
1012 config_msg = "Wrong number of arguments given to set command";
1016 if (strcmp(argv[1], "=")) {
1017 config_msg = "No value assigned";
1021 if (!strcmp(argv[0], "show-rev-graph")) {
1022 opt_rev_graph = (!strcmp(argv[2], "1") ||
1023 !strcmp(argv[2], "true") ||
1024 !strcmp(argv[2], "yes"));
1028 if (!strcmp(argv[0], "line-number-interval")) {
1029 opt_num_interval = atoi(argv[2]);
1033 if (!strcmp(argv[0], "tab-size")) {
1034 opt_tab_size = atoi(argv[2]);
1038 if (!strcmp(argv[0], "commit-encoding")) {
1039 char *arg = argv[2];
1040 int delimiter = *arg;
1043 switch (delimiter) {
1046 for (arg++, i = 0; arg[i]; i++)
1047 if (arg[i] == delimiter) {
1052 string_ncopy(opt_encoding, arg, strlen(arg));
1057 config_msg = "Unknown variable name";
1061 /* Wants: mode request key */
1063 option_bind_command(int argc, char *argv[])
1065 enum request request;
1070 config_msg = "Wrong number of arguments given to bind command";
1074 if (set_keymap(&keymap, argv[0]) == ERR) {
1075 config_msg = "Unknown key map";
1079 key = get_key_value(argv[1]);
1081 config_msg = "Unknown key";
1085 request = get_request(argv[2]);
1086 if (request == REQ_UNKNOWN) {
1087 config_msg = "Unknown request name";
1091 add_keybinding(keymap, request, key);
1097 set_option(char *opt, char *value)
1104 while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) {
1105 argv[argc++] = value;
1112 while (isspace(*value))
1116 if (!strcmp(opt, "color"))
1117 return option_color_command(argc, argv);
1119 if (!strcmp(opt, "set"))
1120 return option_set_command(argc, argv);
1122 if (!strcmp(opt, "bind"))
1123 return option_bind_command(argc, argv);
1125 config_msg = "Unknown option command";
1130 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1135 config_msg = "Internal error";
1137 /* Check for comment markers, since read_properties() will
1138 * only ensure opt and value are split at first " \t". */
1139 optlen = strcspn(opt, "#");
1143 if (opt[optlen] != 0) {
1144 config_msg = "No option value";
1148 /* Look for comment endings in the value. */
1149 size_t len = strcspn(value, "#");
1151 if (len < valuelen) {
1153 value[valuelen] = 0;
1156 status = set_option(opt, value);
1159 if (status == ERR) {
1160 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1161 config_lineno, (int) optlen, opt, config_msg);
1162 config_errors = TRUE;
1165 /* Always keep going if errors are encountered. */
1172 char *home = getenv("HOME");
1173 char buf[SIZEOF_STR];
1177 config_errors = FALSE;
1179 if (!home || !string_format(buf, "%s/.tigrc", home))
1182 /* It's ok that the file doesn't exist. */
1183 file = fopen(buf, "r");
1187 if (read_properties(file, " \t", read_option) == ERR ||
1188 config_errors == TRUE)
1189 fprintf(stderr, "Errors while loading %s.\n", buf);
1202 /* The display array of active views and the index of the current view. */
1203 static struct view *display[2];
1204 static unsigned int current_view;
1206 /* Reading from the prompt? */
1207 static bool input_mode = FALSE;
1209 #define foreach_displayed_view(view, i) \
1210 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1212 #define displayed_views() (display[1] != NULL ? 2 : 1)
1214 /* Current head and commit ID */
1215 static char ref_blob[SIZEOF_REF] = "";
1216 static char ref_commit[SIZEOF_REF] = "HEAD";
1217 static char ref_head[SIZEOF_REF] = "HEAD";
1220 const char *name; /* View name */
1221 const char *cmd_fmt; /* Default command line format */
1222 const char *cmd_env; /* Command line set via environment */
1223 const char *id; /* Points to either of ref_{head,commit,blob} */
1225 struct view_ops *ops; /* View operations */
1227 enum keymap keymap; /* What keymap does this view have */
1229 char cmd[SIZEOF_STR]; /* Command buffer */
1230 char ref[SIZEOF_REF]; /* Hovered commit reference */
1231 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1233 int height, width; /* The width and height of the main window */
1234 WINDOW *win; /* The main window */
1235 WINDOW *title; /* The title window living below the main window */
1238 unsigned long offset; /* Offset of the window top */
1239 unsigned long lineno; /* Current line number */
1242 char grep[SIZEOF_STR]; /* Search string */
1243 regex_t *regex; /* Pre-compiled regex */
1245 /* If non-NULL, points to the view that opened this view. If this view
1246 * is closed tig will switch back to the parent view. */
1247 struct view *parent;
1250 unsigned long lines; /* Total number of lines */
1251 struct line *line; /* Line index */
1252 unsigned long line_size;/* Total number of allocated lines */
1253 unsigned int digits; /* Number of digits in the lines member. */
1261 /* What type of content being displayed. Used in the title bar. */
1263 /* Open and reads in all view content. */
1264 bool (*open)(struct view *view);
1265 /* Read one line; updates view->line. */
1266 bool (*read)(struct view *view, char *data);
1267 /* Draw one line; @lineno must be < view->height. */
1268 bool (*draw)(struct view *view, struct line *line, unsigned int lineno, bool selected);
1269 /* Depending on view handle a special requests. */
1270 enum request (*request)(struct view *view, enum request request, struct line *line);
1271 /* Search for regex in a line. */
1272 bool (*grep)(struct view *view, struct line *line);
1274 void (*select)(struct view *view, struct line *line);
1277 static struct view_ops pager_ops;
1278 static struct view_ops main_ops;
1279 static struct view_ops tree_ops;
1280 static struct view_ops blob_ops;
1281 static struct view_ops help_ops;
1282 static struct view_ops status_ops;
1284 #define VIEW_STR(name, cmd, env, ref, ops, map) \
1285 { name, cmd, #env, ref, ops, map}
1287 #define VIEW_(id, name, ops, ref) \
1288 VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id)
1291 static struct view views[] = {
1292 VIEW_(MAIN, "main", &main_ops, ref_head),
1293 VIEW_(DIFF, "diff", &pager_ops, ref_commit),
1294 VIEW_(LOG, "log", &pager_ops, ref_head),
1295 VIEW_(TREE, "tree", &tree_ops, ref_commit),
1296 VIEW_(BLOB, "blob", &blob_ops, ref_blob),
1297 VIEW_(HELP, "help", &help_ops, ""),
1298 VIEW_(PAGER, "pager", &pager_ops, "stdin"),
1299 VIEW_(STATUS, "status", &status_ops, ""),
1302 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1304 #define foreach_view(view, i) \
1305 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1307 #define view_is_displayed(view) \
1308 (view == display[0] || view == display[1])
1311 draw_view_line(struct view *view, unsigned int lineno)
1314 bool selected = (view->offset + lineno == view->lineno);
1317 assert(view_is_displayed(view));
1319 if (view->offset + lineno >= view->lines)
1322 line = &view->line[view->offset + lineno];
1325 line->selected = TRUE;
1326 view->ops->select(view, line);
1327 } else if (line->selected) {
1328 line->selected = FALSE;
1329 wmove(view->win, lineno, 0);
1330 wclrtoeol(view->win);
1333 scrollok(view->win, FALSE);
1334 draw_ok = view->ops->draw(view, line, lineno, selected);
1335 scrollok(view->win, TRUE);
1341 redraw_view_from(struct view *view, int lineno)
1343 assert(0 <= lineno && lineno < view->height);
1345 for (; lineno < view->height; lineno++) {
1346 if (!draw_view_line(view, lineno))
1350 redrawwin(view->win);
1352 wnoutrefresh(view->win);
1354 wrefresh(view->win);
1358 redraw_view(struct view *view)
1361 redraw_view_from(view, 0);
1366 update_view_title(struct view *view)
1368 char buf[SIZEOF_STR];
1369 char state[SIZEOF_STR];
1370 size_t bufpos = 0, statelen = 0;
1372 assert(view_is_displayed(view));
1374 if (!VIEW(REQ_VIEW_STATUS) && (view->lines || view->pipe)) {
1375 unsigned int view_lines = view->offset + view->height;
1376 unsigned int lines = view->lines
1377 ? MIN(view_lines, view->lines) * 100 / view->lines
1380 string_format_from(state, &statelen, "- %s %d of %d (%d%%)",
1387 time_t secs = time(NULL) - view->start_time;
1389 /* Three git seconds are a long time ... */
1391 string_format_from(state, &statelen, " %lds", secs);
1395 string_format_from(buf, &bufpos, "[%s]", view->name);
1396 if (*view->ref && bufpos < view->width) {
1397 size_t refsize = strlen(view->ref);
1398 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
1400 if (minsize < view->width)
1401 refsize = view->width - minsize + 7;
1402 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
1405 if (statelen && bufpos < view->width) {
1406 string_format_from(buf, &bufpos, " %s", state);
1409 if (view == display[current_view])
1410 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
1412 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
1414 mvwaddnstr(view->title, 0, 0, buf, bufpos);
1415 wclrtoeol(view->title);
1416 wmove(view->title, 0, view->width - 1);
1419 wnoutrefresh(view->title);
1421 wrefresh(view->title);
1425 resize_display(void)
1428 struct view *base = display[0];
1429 struct view *view = display[1] ? display[1] : display[0];
1431 /* Setup window dimensions */
1433 getmaxyx(stdscr, base->height, base->width);
1435 /* Make room for the status window. */
1439 /* Horizontal split. */
1440 view->width = base->width;
1441 view->height = SCALE_SPLIT_VIEW(base->height);
1442 base->height -= view->height;
1444 /* Make room for the title bar. */
1448 /* Make room for the title bar. */
1453 foreach_displayed_view (view, i) {
1455 view->win = newwin(view->height, 0, offset, 0);
1457 die("Failed to create %s view", view->name);
1459 scrollok(view->win, TRUE);
1461 view->title = newwin(1, 0, offset + view->height, 0);
1463 die("Failed to create title window");
1466 wresize(view->win, view->height, view->width);
1467 mvwin(view->win, offset, 0);
1468 mvwin(view->title, offset + view->height, 0);
1471 offset += view->height + 1;
1476 redraw_display(void)
1481 foreach_displayed_view (view, i) {
1483 update_view_title(view);
1488 update_display_cursor(struct view *view)
1490 /* Move the cursor to the right-most column of the cursor line.
1492 * XXX: This could turn out to be a bit expensive, but it ensures that
1493 * the cursor does not jump around. */
1495 wmove(view->win, view->lineno - view->offset, view->width - 1);
1496 wrefresh(view->win);
1504 /* Scrolling backend */
1506 do_scroll_view(struct view *view, int lines)
1508 bool redraw_current_line = FALSE;
1510 /* The rendering expects the new offset. */
1511 view->offset += lines;
1513 assert(0 <= view->offset && view->offset < view->lines);
1516 /* Move current line into the view. */
1517 if (view->lineno < view->offset) {
1518 view->lineno = view->offset;
1519 redraw_current_line = TRUE;
1520 } else if (view->lineno >= view->offset + view->height) {
1521 view->lineno = view->offset + view->height - 1;
1522 redraw_current_line = TRUE;
1525 assert(view->offset <= view->lineno && view->lineno < view->lines);
1527 /* Redraw the whole screen if scrolling is pointless. */
1528 if (view->height < ABS(lines)) {
1532 int line = lines > 0 ? view->height - lines : 0;
1533 int end = line + ABS(lines);
1535 wscrl(view->win, lines);
1537 for (; line < end; line++) {
1538 if (!draw_view_line(view, line))
1542 if (redraw_current_line)
1543 draw_view_line(view, view->lineno - view->offset);
1546 redrawwin(view->win);
1547 wrefresh(view->win);
1551 /* Scroll frontend */
1553 scroll_view(struct view *view, enum request request)
1557 assert(view_is_displayed(view));
1560 case REQ_SCROLL_PAGE_DOWN:
1561 lines = view->height;
1562 case REQ_SCROLL_LINE_DOWN:
1563 if (view->offset + lines > view->lines)
1564 lines = view->lines - view->offset;
1566 if (lines == 0 || view->offset + view->height >= view->lines) {
1567 report("Cannot scroll beyond the last line");
1572 case REQ_SCROLL_PAGE_UP:
1573 lines = view->height;
1574 case REQ_SCROLL_LINE_UP:
1575 if (lines > view->offset)
1576 lines = view->offset;
1579 report("Cannot scroll beyond the first line");
1587 die("request %d not handled in switch", request);
1590 do_scroll_view(view, lines);
1595 move_view(struct view *view, enum request request)
1597 int scroll_steps = 0;
1601 case REQ_MOVE_FIRST_LINE:
1602 steps = -view->lineno;
1605 case REQ_MOVE_LAST_LINE:
1606 steps = view->lines - view->lineno - 1;
1609 case REQ_MOVE_PAGE_UP:
1610 steps = view->height > view->lineno
1611 ? -view->lineno : -view->height;
1614 case REQ_MOVE_PAGE_DOWN:
1615 steps = view->lineno + view->height >= view->lines
1616 ? view->lines - view->lineno - 1 : view->height;
1628 die("request %d not handled in switch", request);
1631 if (steps <= 0 && view->lineno == 0) {
1632 report("Cannot move beyond the first line");
1635 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
1636 report("Cannot move beyond the last line");
1640 /* Move the current line */
1641 view->lineno += steps;
1642 assert(0 <= view->lineno && view->lineno < view->lines);
1644 /* Check whether the view needs to be scrolled */
1645 if (view->lineno < view->offset ||
1646 view->lineno >= view->offset + view->height) {
1647 scroll_steps = steps;
1648 if (steps < 0 && -steps > view->offset) {
1649 scroll_steps = -view->offset;
1651 } else if (steps > 0) {
1652 if (view->lineno == view->lines - 1 &&
1653 view->lines > view->height) {
1654 scroll_steps = view->lines - view->offset - 1;
1655 if (scroll_steps >= view->height)
1656 scroll_steps -= view->height - 1;
1661 if (!view_is_displayed(view)) {
1662 view->offset += scroll_steps;
1663 assert(0 <= view->offset && view->offset < view->lines);
1664 view->ops->select(view, &view->line[view->lineno]);
1668 /* Repaint the old "current" line if we be scrolling */
1669 if (ABS(steps) < view->height)
1670 draw_view_line(view, view->lineno - steps - view->offset);
1673 do_scroll_view(view, scroll_steps);
1677 /* Draw the current line */
1678 draw_view_line(view, view->lineno - view->offset);
1680 redrawwin(view->win);
1681 wrefresh(view->win);
1690 static void search_view(struct view *view, enum request request);
1693 find_next_line(struct view *view, unsigned long lineno, struct line *line)
1695 assert(view_is_displayed(view));
1697 if (!view->ops->grep(view, line))
1700 if (lineno - view->offset >= view->height) {
1701 view->offset = lineno;
1702 view->lineno = lineno;
1706 unsigned long old_lineno = view->lineno - view->offset;
1708 view->lineno = lineno;
1709 draw_view_line(view, old_lineno);
1711 draw_view_line(view, view->lineno - view->offset);
1712 redrawwin(view->win);
1713 wrefresh(view->win);
1716 report("Line %ld matches '%s'", lineno + 1, view->grep);
1721 find_next(struct view *view, enum request request)
1723 unsigned long lineno = view->lineno;
1728 report("No previous search");
1730 search_view(view, request);
1740 case REQ_SEARCH_BACK:
1749 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
1750 lineno += direction;
1752 /* Note, lineno is unsigned long so will wrap around in which case it
1753 * will become bigger than view->lines. */
1754 for (; lineno < view->lines; lineno += direction) {
1755 struct line *line = &view->line[lineno];
1757 if (find_next_line(view, lineno, line))
1761 report("No match found for '%s'", view->grep);
1765 search_view(struct view *view, enum request request)
1770 regfree(view->regex);
1773 view->regex = calloc(1, sizeof(*view->regex));
1778 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
1779 if (regex_err != 0) {
1780 char buf[SIZEOF_STR] = "unknown error";
1782 regerror(regex_err, view->regex, buf, sizeof(buf));
1783 report("Search failed: %s", buf);
1787 string_copy(view->grep, opt_search);
1789 find_next(view, request);
1793 * Incremental updating
1797 end_update(struct view *view)
1801 set_nonblocking_input(FALSE);
1802 if (view->pipe == stdin)
1810 begin_update(struct view *view)
1816 string_copy(view->cmd, opt_cmd);
1818 /* When running random commands, initially show the
1819 * command in the title. However, it maybe later be
1820 * overwritten if a commit line is selected. */
1821 string_copy(view->ref, view->cmd);
1823 } else if (view == VIEW(REQ_VIEW_TREE)) {
1824 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
1825 char path[SIZEOF_STR];
1827 if (strcmp(view->vid, view->id))
1828 opt_path[0] = path[0] = 0;
1829 else if (sq_quote(path, 0, opt_path) >= sizeof(path))
1832 if (!string_format(view->cmd, format, view->id, path))
1836 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
1837 const char *id = view->id;
1839 if (!string_format(view->cmd, format, id, id, id, id, id))
1842 /* Put the current ref_* value to the view title ref
1843 * member. This is needed by the blob view. Most other
1844 * views sets it automatically after loading because the
1845 * first line is a commit line. */
1846 string_copy_rev(view->ref, view->id);
1849 /* Special case for the pager view. */
1851 view->pipe = opt_pipe;
1854 view->pipe = popen(view->cmd, "r");
1860 set_nonblocking_input(TRUE);
1865 string_copy_rev(view->vid, view->id);
1870 for (i = 0; i < view->lines; i++)
1871 if (view->line[i].data)
1872 free(view->line[i].data);
1878 view->start_time = time(NULL);
1883 static struct line *
1884 realloc_lines(struct view *view, size_t line_size)
1886 struct line *tmp = realloc(view->line, sizeof(*view->line) * line_size);
1892 view->line_size = line_size;
1897 update_view(struct view *view)
1899 char in_buffer[BUFSIZ];
1900 char out_buffer[BUFSIZ * 2];
1902 /* The number of lines to read. If too low it will cause too much
1903 * redrawing (and possible flickering), if too high responsiveness
1905 unsigned long lines = view->height;
1906 int redraw_from = -1;
1911 /* Only redraw if lines are visible. */
1912 if (view->offset + view->height >= view->lines)
1913 redraw_from = view->lines - view->offset;
1915 /* FIXME: This is probably not perfect for backgrounded views. */
1916 if (!realloc_lines(view, view->lines + lines))
1919 while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) {
1920 size_t linelen = strlen(line);
1923 line[linelen - 1] = 0;
1925 if (opt_iconv != ICONV_NONE) {
1927 size_t inlen = linelen;
1929 char *outbuf = out_buffer;
1930 size_t outlen = sizeof(out_buffer);
1934 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
1935 if (ret != (size_t) -1) {
1937 linelen = strlen(out_buffer);
1941 if (!view->ops->read(view, line))
1951 lines = view->lines;
1952 for (digits = 0; lines; digits++)
1955 /* Keep the displayed view in sync with line number scaling. */
1956 if (digits != view->digits) {
1957 view->digits = digits;
1962 if (!view_is_displayed(view))
1965 if (view == VIEW(REQ_VIEW_TREE)) {
1966 /* Clear the view and redraw everything since the tree sorting
1967 * might have rearranged things. */
1970 } else if (redraw_from >= 0) {
1971 /* If this is an incremental update, redraw the previous line
1972 * since for commits some members could have changed when
1973 * loading the main view. */
1974 if (redraw_from > 0)
1977 /* Since revision graph visualization requires knowledge
1978 * about the parent commit, it causes a further one-off
1979 * needed to be redrawn for incremental updates. */
1980 if (redraw_from > 0 && opt_rev_graph)
1983 /* Incrementally draw avoids flickering. */
1984 redraw_view_from(view, redraw_from);
1987 /* Update the title _after_ the redraw so that if the redraw picks up a
1988 * commit reference in view->ref it'll be available here. */
1989 update_view_title(view);
1992 if (ferror(view->pipe)) {
1993 report("Failed to read: %s", strerror(errno));
1996 } else if (feof(view->pipe)) {
2004 report("Allocation failure");
2007 view->ops->read(view, NULL);
2012 static struct line *
2013 add_line_data(struct view *view, void *data, enum line_type type)
2015 struct line *line = &view->line[view->lines++];
2017 memset(line, 0, sizeof(*line));
2024 static struct line *
2025 add_line_text(struct view *view, char *data, enum line_type type)
2028 data = strdup(data);
2030 return data ? add_line_data(view, data, type) : NULL;
2039 OPEN_DEFAULT = 0, /* Use default view switching. */
2040 OPEN_SPLIT = 1, /* Split current view. */
2041 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2042 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2046 open_view(struct view *prev, enum request request, enum open_flags flags)
2048 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2049 bool split = !!(flags & OPEN_SPLIT);
2050 bool reload = !!(flags & OPEN_RELOAD);
2051 struct view *view = VIEW(request);
2052 int nviews = displayed_views();
2053 struct view *base_view = display[0];
2055 if (view == prev && nviews == 1 && !reload) {
2056 report("Already in %s view", view->name);
2060 if (view->ops->open) {
2061 if (!view->ops->open(view)) {
2062 report("Failed to load %s view", view->name);
2066 } else if ((reload || strcmp(view->vid, view->id)) &&
2067 !begin_update(view)) {
2068 report("Failed to load %s view", view->name);
2077 /* Maximize the current view. */
2078 memset(display, 0, sizeof(display));
2080 display[current_view] = view;
2083 /* Resize the view when switching between split- and full-screen,
2084 * or when switching between two different full-screen views. */
2085 if (nviews != displayed_views() ||
2086 (nviews == 1 && base_view != display[0]))
2089 if (split && prev->lineno - prev->offset >= prev->height) {
2090 /* Take the title line into account. */
2091 int lines = prev->lineno - prev->offset - prev->height + 1;
2093 /* Scroll the view that was split if the current line is
2094 * outside the new limited view. */
2095 do_scroll_view(prev, lines);
2098 if (prev && view != prev) {
2099 if (split && !backgrounded) {
2100 /* "Blur" the previous view. */
2101 update_view_title(prev);
2104 view->parent = prev;
2107 if (view->pipe && view->lines == 0) {
2108 /* Clear the old view and let the incremental updating refill
2117 /* If the view is backgrounded the above calls to report()
2118 * won't redraw the view title. */
2120 update_view_title(view);
2124 open_editor(struct view *view, char *file)
2126 char cmd[SIZEOF_STR];
2127 char file_sq[SIZEOF_STR];
2130 editor = getenv("GIT_EDITOR");
2131 if (!editor && *opt_editor)
2132 editor = opt_editor;
2134 editor = getenv("VISUAL");
2136 editor = getenv("EDITOR");
2140 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2141 string_format(cmd, "%s %s", editor, file_sq)) {
2142 def_prog_mode(); /* save current tty modes */
2143 endwin(); /* restore original tty modes */
2151 * User request switch noodle
2155 view_driver(struct view *view, enum request request)
2159 if (view && view->lines) {
2160 request = view->ops->request(view, request, &view->line[view->lineno]);
2161 if (request == REQ_NONE)
2168 case REQ_MOVE_PAGE_UP:
2169 case REQ_MOVE_PAGE_DOWN:
2170 case REQ_MOVE_FIRST_LINE:
2171 case REQ_MOVE_LAST_LINE:
2172 move_view(view, request);
2175 case REQ_SCROLL_LINE_DOWN:
2176 case REQ_SCROLL_LINE_UP:
2177 case REQ_SCROLL_PAGE_DOWN:
2178 case REQ_SCROLL_PAGE_UP:
2179 scroll_view(view, request);
2184 report("No file chosen, press %s to open tree view",
2185 get_key(REQ_VIEW_TREE));
2188 open_view(view, request, OPEN_DEFAULT);
2191 case REQ_VIEW_PAGER:
2192 if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2193 report("No pager content, press %s to run command from prompt",
2194 get_key(REQ_PROMPT));
2197 open_view(view, request, OPEN_DEFAULT);
2205 case REQ_VIEW_STATUS:
2206 open_view(view, request, OPEN_DEFAULT);
2211 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2213 if ((view == VIEW(REQ_VIEW_DIFF) &&
2214 view->parent == VIEW(REQ_VIEW_MAIN)) ||
2215 (view == VIEW(REQ_VIEW_BLOB) &&
2216 view->parent == VIEW(REQ_VIEW_TREE))) {
2219 view = view->parent;
2220 line = view->lineno;
2221 move_view(view, request);
2222 if (view_is_displayed(view))
2223 update_view_title(view);
2224 if (line == view->lineno)
2227 move_view(view, request);
2235 int nviews = displayed_views();
2236 int next_view = (current_view + 1) % nviews;
2238 if (next_view == current_view) {
2239 report("Only one view is displayed");
2243 current_view = next_view;
2244 /* Blur out the title of the previous view. */
2245 update_view_title(view);
2249 case REQ_TOGGLE_LINENO:
2250 opt_line_number = !opt_line_number;
2254 case REQ_TOGGLE_REV_GRAPH:
2255 opt_rev_graph = !opt_rev_graph;
2260 /* Always reload^Wrerun commands from the prompt. */
2261 open_view(view, opt_request, OPEN_RELOAD);
2265 case REQ_SEARCH_BACK:
2266 search_view(view, request);
2271 find_next(view, request);
2274 case REQ_STOP_LOADING:
2275 for (i = 0; i < ARRAY_SIZE(views); i++) {
2278 report("Stopped loading the %s view", view->name),
2283 case REQ_SHOW_VERSION:
2284 report("tig-%s (built %s)", VERSION, __DATE__);
2287 case REQ_SCREEN_RESIZE:
2290 case REQ_SCREEN_REDRAW:
2295 report("Nothing to edit");
2301 case REQ_VIEW_CLOSE:
2302 /* XXX: Mark closed views by letting view->parent point to the
2303 * view itself. Parents to closed view should never be
2306 view->parent->parent != view->parent) {
2307 memset(display, 0, sizeof(display));
2309 display[current_view] = view->parent;
2310 view->parent = view;
2320 /* An unknown key will show most commonly used commands. */
2321 report("Unknown key, press 'h' for help");
2334 pager_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
2336 char *text = line->data;
2337 enum line_type type = line->type;
2338 int textlen = strlen(text);
2341 wmove(view->win, lineno, 0);
2345 wchgat(view->win, -1, 0, type, NULL);
2348 attr = get_line_attr(type);
2349 wattrset(view->win, attr);
2351 if (opt_line_number || opt_tab_size < TABSIZE) {
2352 static char spaces[] = " ";
2353 int col_offset = 0, col = 0;
2355 if (opt_line_number) {
2356 unsigned long real_lineno = view->offset + lineno + 1;
2358 if (real_lineno == 1 ||
2359 (real_lineno % opt_num_interval) == 0) {
2360 wprintw(view->win, "%.*d", view->digits, real_lineno);
2363 waddnstr(view->win, spaces,
2364 MIN(view->digits, STRING_SIZE(spaces)));
2366 waddstr(view->win, ": ");
2367 col_offset = view->digits + 2;
2370 while (text && col_offset + col < view->width) {
2371 int cols_max = view->width - col_offset - col;
2375 if (*text == '\t') {
2377 assert(sizeof(spaces) > TABSIZE);
2379 cols = opt_tab_size - (col % opt_tab_size);
2382 text = strchr(text, '\t');
2383 cols = line ? text - pos : strlen(pos);
2386 waddnstr(view->win, pos, MIN(cols, cols_max));
2391 int col = 0, pos = 0;
2393 for (; pos < textlen && col < view->width; pos++, col++)
2394 if (text[pos] == '\t')
2395 col += TABSIZE - (col % TABSIZE) - 1;
2397 waddnstr(view->win, text, pos);
2404 add_describe_ref(char *buf, size_t *bufpos, char *commit_id, const char *sep)
2406 char refbuf[SIZEOF_STR];
2410 if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id))
2413 pipe = popen(refbuf, "r");
2417 if ((ref = fgets(refbuf, sizeof(refbuf), pipe)))
2418 ref = chomp_string(ref);
2424 /* This is the only fatal call, since it can "corrupt" the buffer. */
2425 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
2432 add_pager_refs(struct view *view, struct line *line)
2434 char buf[SIZEOF_STR];
2435 char *commit_id = line->data + STRING_SIZE("commit ");
2437 size_t bufpos = 0, refpos = 0;
2438 const char *sep = "Refs: ";
2439 bool is_tag = FALSE;
2441 assert(line->type == LINE_COMMIT);
2443 refs = get_refs(commit_id);
2445 if (view == VIEW(REQ_VIEW_DIFF))
2446 goto try_add_describe_ref;
2451 struct ref *ref = refs[refpos];
2452 char *fmt = ref->tag ? "%s[%s]" :
2453 ref->remote ? "%s<%s>" : "%s%s";
2455 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
2460 } while (refs[refpos++]->next);
2462 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
2463 try_add_describe_ref:
2464 /* Add <tag>-g<commit_id> "fake" reference. */
2465 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
2472 if (!realloc_lines(view, view->line_size + 1))
2475 add_line_text(view, buf, LINE_PP_REFS);
2479 pager_read(struct view *view, char *data)
2486 line = add_line_text(view, data, get_line_type(data));
2490 if (line->type == LINE_COMMIT &&
2491 (view == VIEW(REQ_VIEW_DIFF) ||
2492 view == VIEW(REQ_VIEW_LOG)))
2493 add_pager_refs(view, line);
2499 pager_request(struct view *view, enum request request, struct line *line)
2503 if (request != REQ_ENTER)
2506 if (line->type == LINE_COMMIT &&
2507 (view == VIEW(REQ_VIEW_LOG) ||
2508 view == VIEW(REQ_VIEW_PAGER))) {
2509 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
2513 /* Always scroll the view even if it was split. That way
2514 * you can use Enter to scroll through the log view and
2515 * split open each commit diff. */
2516 scroll_view(view, REQ_SCROLL_LINE_DOWN);
2518 /* FIXME: A minor workaround. Scrolling the view will call report("")
2519 * but if we are scrolling a non-current view this won't properly
2520 * update the view title. */
2522 update_view_title(view);
2528 pager_grep(struct view *view, struct line *line)
2531 char *text = line->data;
2536 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
2543 pager_select(struct view *view, struct line *line)
2545 if (line->type == LINE_COMMIT) {
2546 char *text = line->data + STRING_SIZE("commit ");
2548 if (view != VIEW(REQ_VIEW_PAGER))
2549 string_copy_rev(view->ref, text);
2550 string_copy_rev(ref_commit, text);
2554 static struct view_ops pager_ops = {
2570 help_open(struct view *view)
2573 int lines = ARRAY_SIZE(req_info) + 2;
2576 if (view->lines > 0)
2579 for (i = 0; i < ARRAY_SIZE(req_info); i++)
2580 if (!req_info[i].request)
2583 view->line = calloc(lines, sizeof(*view->line));
2587 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
2589 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
2592 if (!req_info[i].request) {
2593 add_line_text(view, "", LINE_DEFAULT);
2594 add_line_text(view, req_info[i].help, LINE_DEFAULT);
2598 key = get_key(req_info[i].request);
2599 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
2602 add_line_text(view, buf, LINE_DEFAULT);
2608 static struct view_ops help_ops = {
2623 /* Parse output from git-ls-tree(1):
2625 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
2626 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
2627 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
2628 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
2631 #define SIZEOF_TREE_ATTR \
2632 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
2634 #define TREE_UP_FORMAT "040000 tree %s\t.."
2637 tree_compare_entry(enum line_type type1, char *name1,
2638 enum line_type type2, char *name2)
2640 if (type1 != type2) {
2641 if (type1 == LINE_TREE_DIR)
2646 return strcmp(name1, name2);
2650 tree_read(struct view *view, char *text)
2652 size_t textlen = text ? strlen(text) : 0;
2653 char buf[SIZEOF_STR];
2655 enum line_type type;
2656 bool first_read = view->lines == 0;
2658 if (textlen <= SIZEOF_TREE_ATTR)
2661 type = text[STRING_SIZE("100644 ")] == 't'
2662 ? LINE_TREE_DIR : LINE_TREE_FILE;
2665 /* Add path info line */
2666 if (!string_format(buf, "Directory path /%s", opt_path) ||
2667 !realloc_lines(view, view->line_size + 1) ||
2668 !add_line_text(view, buf, LINE_DEFAULT))
2671 /* Insert "link" to parent directory. */
2673 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
2674 !realloc_lines(view, view->line_size + 1) ||
2675 !add_line_text(view, buf, LINE_TREE_DIR))
2680 /* Strip the path part ... */
2682 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
2683 size_t striplen = strlen(opt_path);
2684 char *path = text + SIZEOF_TREE_ATTR;
2686 if (pathlen > striplen)
2687 memmove(path, path + striplen,
2688 pathlen - striplen + 1);
2691 /* Skip "Directory ..." and ".." line. */
2692 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
2693 struct line *line = &view->line[pos];
2694 char *path1 = ((char *) line->data) + SIZEOF_TREE_ATTR;
2695 char *path2 = text + SIZEOF_TREE_ATTR;
2696 int cmp = tree_compare_entry(line->type, path1, type, path2);
2701 text = strdup(text);
2705 if (view->lines > pos)
2706 memmove(&view->line[pos + 1], &view->line[pos],
2707 (view->lines - pos) * sizeof(*line));
2709 line = &view->line[pos];
2716 if (!add_line_text(view, text, type))
2719 /* Move the current line to the first tree entry. */
2727 tree_request(struct view *view, enum request request, struct line *line)
2729 enum open_flags flags;
2731 if (request != REQ_ENTER)
2734 switch (line->type) {
2736 /* Depending on whether it is a subdir or parent (updir?) link
2737 * mangle the path buffer. */
2738 if (line == &view->line[1] && *opt_path) {
2739 size_t path_len = strlen(opt_path);
2740 char *dirsep = opt_path + path_len - 1;
2742 while (dirsep > opt_path && dirsep[-1] != '/')
2748 size_t pathlen = strlen(opt_path);
2749 size_t origlen = pathlen;
2750 char *data = line->data;
2751 char *basename = data + SIZEOF_TREE_ATTR;
2753 if (!string_format_from(opt_path, &pathlen, "%s/", basename)) {
2754 opt_path[origlen] = 0;
2759 /* Trees and subtrees share the same ID, so they are not not
2760 * unique like blobs. */
2761 flags = OPEN_RELOAD;
2762 request = REQ_VIEW_TREE;
2765 case LINE_TREE_FILE:
2766 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
2767 request = REQ_VIEW_BLOB;
2774 open_view(view, request, flags);
2780 tree_select(struct view *view, struct line *line)
2782 char *text = line->data + STRING_SIZE("100644 blob ");
2784 if (line->type == LINE_TREE_FILE) {
2785 string_copy_rev(ref_blob, text);
2787 } else if (line->type != LINE_TREE_DIR) {
2791 string_copy_rev(view->ref, text);
2794 static struct view_ops tree_ops = {
2805 blob_read(struct view *view, char *line)
2807 return add_line_text(view, line, LINE_DEFAULT);
2810 static struct view_ops blob_ops = {
2829 char rev[SIZEOF_REV];
2833 char rev[SIZEOF_REV];
2835 char name[SIZEOF_STR];
2838 /* Get fields from the diff line:
2839 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
2842 status_get_diff(struct status *file, char *buf, size_t bufsize)
2844 char *old_mode = buf + 1;
2845 char *new_mode = buf + 8;
2846 char *old_rev = buf + 15;
2847 char *new_rev = buf + 56;
2848 char *status = buf + 97;
2850 if (bufsize != 99 ||
2851 old_mode[-1] != ':' ||
2852 new_mode[-1] != ' ' ||
2853 old_rev[-1] != ' ' ||
2854 new_rev[-1] != ' ' ||
2858 file->status = *status;
2860 string_copy_rev(file->old.rev, old_rev);
2861 string_copy_rev(file->new.rev, new_rev);
2863 file->old.mode = strtoul(old_mode, NULL, 8);
2864 file->new.mode = strtoul(new_mode, NULL, 8);
2872 status_run(struct view *view, const char cmd[], bool diff, enum line_type type)
2874 struct status *file = NULL;
2875 char buf[SIZEOF_STR * 4];
2879 pipe = popen(cmd, "r");
2883 add_line_data(view, NULL, type);
2885 while (!feof(pipe) && !ferror(pipe)) {
2889 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
2892 bufsize += readsize;
2894 /* Process while we have NUL chars. */
2895 while ((sep = memchr(buf, 0, bufsize))) {
2896 size_t sepsize = sep - buf + 1;
2899 if (!realloc_lines(view, view->line_size + 1))
2902 file = calloc(1, sizeof(*file));
2906 add_line_data(view, file, type);
2909 /* Parse diff info part. */
2913 } else if (!file->status) {
2914 if (!status_get_diff(file, buf, sepsize))
2918 memmove(buf, sep + 1, bufsize);
2920 sep = memchr(buf, 0, bufsize);
2923 sepsize = sep - buf + 1;
2926 /* git-ls-files just delivers a NUL separated
2927 * list of file names similar to the second half
2928 * of the git-diff-* output. */
2929 string_ncopy(file->name, buf, sepsize);
2931 memmove(buf, sep + 1, bufsize);
2942 if (!view->line[view->lines - 1].data)
2943 add_line_data(view, NULL, LINE_STAT_NONE);
2949 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --cached HEAD"
2950 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
2951 #define STATUS_LIST_OTHER_CMD \
2952 "git ls-files -z --others --exclude-per-directory=.gitignore"
2954 #define STATUS_DIFF_SHOW_CMD \
2955 "git diff --root --patch-with-stat --find-copies-harder -B -C %s -- %s 2>/dev/null"
2957 /* First parse staged info using git-diff-index(1), then parse unstaged
2958 * info using git-diff-files(1), and finally untracked files using
2959 * git-ls-files(1). */
2961 status_open(struct view *view)
2963 struct stat statbuf;
2964 char exclude[SIZEOF_STR];
2965 char cmd[SIZEOF_STR];
2968 for (i = 0; i < view->lines; i++)
2969 free(view->line[i].data);
2971 view->lines = view->line_size = 0;
2974 if (!realloc_lines(view, view->line_size + 6))
2977 if (!string_format(exclude, "%s/info/exclude", opt_git_dir))
2980 string_copy(cmd, STATUS_LIST_OTHER_CMD);
2982 if (stat(exclude, &statbuf) >= 0) {
2983 size_t cmdsize = strlen(cmd);
2985 if (!string_format_from(cmd, &cmdsize, " %s", "--exclude-from=") ||
2986 sq_quote(cmd, cmdsize, exclude) >= sizeof(cmd))
2990 if (!status_run(view, STATUS_DIFF_INDEX_CMD, TRUE, LINE_STAT_STAGED) ||
2991 !status_run(view, STATUS_DIFF_FILES_CMD, TRUE, LINE_STAT_UNSTAGED) ||
2992 !status_run(view, cmd, FALSE, LINE_STAT_UNTRACKED))
2999 status_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
3001 struct status *status = line->data;
3003 wmove(view->win, lineno, 0);
3006 wattrset(view->win, get_line_attr(LINE_CURSOR));
3007 wchgat(view->win, -1, 0, LINE_CURSOR, NULL);
3009 } else if (!status && line->type != LINE_STAT_NONE) {
3010 wattrset(view->win, get_line_attr(LINE_STAT_SECTION));
3011 wchgat(view->win, -1, 0, LINE_STAT_SECTION, NULL);
3014 wattrset(view->win, get_line_attr(line->type));
3020 switch (line->type) {
3021 case LINE_STAT_STAGED:
3022 text = "Changes to be committed:";
3025 case LINE_STAT_UNSTAGED:
3026 text = "Changed but not updated:";
3029 case LINE_STAT_UNTRACKED:
3030 text = "Untracked files:";
3033 case LINE_STAT_NONE:
3034 text = " (no files)";
3041 waddstr(view->win, text);
3045 waddch(view->win, status->status);
3047 wattrset(view->win, A_NORMAL);
3048 wmove(view->win, lineno, 4);
3049 waddstr(view->win, status->name);
3055 status_enter(struct view *view, struct line *line)
3057 struct status *status = line->data;
3058 char path[SIZEOF_STR] = "";
3062 if (line->type == LINE_STAT_NONE ||
3063 (!status && line[1].type == LINE_STAT_NONE)) {
3064 report("No file to diff");
3068 if (status && sq_quote(path, 0, status->name) >= sizeof(path))
3072 line->type != LINE_STAT_UNTRACKED &&
3073 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
3076 switch (line->type) {
3077 case LINE_STAT_STAGED:
3078 if (!string_format_from(opt_cmd, &cmdsize, STATUS_DIFF_SHOW_CMD,
3082 info = "Staged changes to %s";
3084 info = "Staged changes";
3087 case LINE_STAT_UNSTAGED:
3088 if (!string_format_from(opt_cmd, &cmdsize, STATUS_DIFF_SHOW_CMD,
3092 info = "Unstaged changes to %s";
3094 info = "Unstaged changes";
3097 case LINE_STAT_UNTRACKED:
3103 report("No file to show");
3107 opt_pipe = fopen(status->name, "r");
3108 info = "Untracked file %s";
3115 open_view(view, REQ_VIEW_DIFF, OPEN_RELOAD | OPEN_SPLIT);
3116 if (view_is_displayed(VIEW(REQ_VIEW_DIFF))) {
3117 string_format(VIEW(REQ_VIEW_DIFF)->ref, info, status->name);
3125 status_update_file(struct view *view, struct status *status, enum line_type type)
3127 char cmd[SIZEOF_STR];
3128 char buf[SIZEOF_STR];
3135 type != LINE_STAT_UNTRACKED &&
3136 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
3140 case LINE_STAT_STAGED:
3141 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
3147 string_add(cmd, cmdsize, "git update-index -z --index-info");
3150 case LINE_STAT_UNSTAGED:
3151 case LINE_STAT_UNTRACKED:
3152 if (!string_format_from(buf, &bufsize, "%s%c", status->name, 0))
3155 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
3162 pipe = popen(cmd, "w");
3166 while (!ferror(pipe) && written < bufsize) {
3167 written += fwrite(buf + written, 1, bufsize - written, pipe);
3172 if (written != bufsize)
3179 status_update(struct view *view)
3181 struct line *line = &view->line[view->lineno];
3183 assert(view->lines);
3186 while (++line < view->line + view->lines && line->data) {
3187 if (!status_update_file(view, line->data, line->type))
3188 report("Failed to update file status");
3191 if (!line[-1].data) {
3192 report("Nothing to update");
3196 } else if (!status_update_file(view, line->data, line->type)) {
3197 report("Failed to update file status");
3200 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
3204 status_request(struct view *view, enum request request, struct line *line)
3206 struct status *status = line->data;
3209 case REQ_STATUS_UPDATE:
3210 status_update(view);
3217 open_editor(view, status->name);
3221 status_enter(view, line);
3232 status_select(struct view *view, struct line *line)
3234 struct status *status = line->data;
3235 char file[SIZEOF_STR] = "all files";
3238 if (status && !string_format(file, "'%s'", status->name))
3241 if (!status && line[1].type == LINE_STAT_NONE)
3244 switch (line->type) {
3245 case LINE_STAT_STAGED:
3246 text = "Press %s to unstage %s for commit";
3249 case LINE_STAT_UNSTAGED:
3250 text = "Press %s to stage %s for commit";
3253 case LINE_STAT_UNTRACKED:
3254 text = "Press %s to stage %s for addition";
3257 case LINE_STAT_NONE:
3258 text = "Nothing to update";
3265 string_format(view->ref, text, get_key(REQ_STATUS_UPDATE), file);
3269 status_grep(struct view *view, struct line *line)
3271 struct status *status = line->data;
3272 enum { S_STATUS, S_NAME, S_END } state;
3279 for (state = S_STATUS; state < S_END; state++) {
3283 case S_NAME: text = status->name; break;
3285 buf[0] = status->status;
3293 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3300 static struct view_ops status_ops = {
3316 char id[SIZEOF_REV]; /* SHA1 ID. */
3317 char title[128]; /* First line of the commit message. */
3318 char author[75]; /* Author of the commit. */
3319 struct tm time; /* Date from the author ident. */
3320 struct ref **refs; /* Repository references. */
3321 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
3322 size_t graph_size; /* The width of the graph array. */
3325 /* Size of rev graph with no "padding" columns */
3326 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
3329 struct rev_graph *prev, *next, *parents;
3330 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
3332 struct commit *commit;
3336 /* Parents of the commit being visualized. */
3337 static struct rev_graph graph_parents[4];
3339 /* The current stack of revisions on the graph. */
3340 static struct rev_graph graph_stacks[4] = {
3341 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
3342 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
3343 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
3344 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
3348 graph_parent_is_merge(struct rev_graph *graph)
3350 return graph->parents->size > 1;
3354 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
3356 struct commit *commit = graph->commit;
3358 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
3359 commit->graph[commit->graph_size++] = symbol;
3363 done_rev_graph(struct rev_graph *graph)
3365 if (graph_parent_is_merge(graph) &&
3366 graph->pos < graph->size - 1 &&
3367 graph->next->size == graph->size + graph->parents->size - 1) {
3368 size_t i = graph->pos + graph->parents->size - 1;
3370 graph->commit->graph_size = i * 2;
3371 while (i < graph->next->size - 1) {
3372 append_to_rev_graph(graph, ' ');
3373 append_to_rev_graph(graph, '\\');
3378 graph->size = graph->pos = 0;
3379 graph->commit = NULL;
3380 memset(graph->parents, 0, sizeof(*graph->parents));
3384 push_rev_graph(struct rev_graph *graph, char *parent)
3388 /* "Collapse" duplicate parents lines.
3390 * FIXME: This needs to also update update the drawn graph but
3391 * for now it just serves as a method for pruning graph lines. */
3392 for (i = 0; i < graph->size; i++)
3393 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
3396 if (graph->size < SIZEOF_REVITEMS) {
3397 string_copy_rev(graph->rev[graph->size++], parent);
3402 get_rev_graph_symbol(struct rev_graph *graph)
3406 if (graph->parents->size == 0)
3407 symbol = REVGRAPH_INIT;
3408 else if (graph_parent_is_merge(graph))
3409 symbol = REVGRAPH_MERGE;
3410 else if (graph->pos >= graph->size)
3411 symbol = REVGRAPH_BRANCH;
3413 symbol = REVGRAPH_COMMIT;
3419 draw_rev_graph(struct rev_graph *graph)
3422 chtype separator, line;
3424 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
3425 static struct rev_filler fillers[] = {
3426 { ' ', REVGRAPH_LINE },
3431 chtype symbol = get_rev_graph_symbol(graph);
3432 struct rev_filler *filler;
3435 filler = &fillers[DEFAULT];
3437 for (i = 0; i < graph->pos; i++) {
3438 append_to_rev_graph(graph, filler->line);
3439 if (graph_parent_is_merge(graph->prev) &&
3440 graph->prev->pos == i)
3441 filler = &fillers[RSHARP];
3443 append_to_rev_graph(graph, filler->separator);
3446 /* Place the symbol for this revision. */
3447 append_to_rev_graph(graph, symbol);
3449 if (graph->prev->size > graph->size)
3450 filler = &fillers[RDIAG];
3452 filler = &fillers[DEFAULT];
3456 for (; i < graph->size; i++) {
3457 append_to_rev_graph(graph, filler->separator);
3458 append_to_rev_graph(graph, filler->line);
3459 if (graph_parent_is_merge(graph->prev) &&
3460 i < graph->prev->pos + graph->parents->size)
3461 filler = &fillers[RSHARP];
3462 if (graph->prev->size > graph->size)
3463 filler = &fillers[LDIAG];
3466 if (graph->prev->size > graph->size) {
3467 append_to_rev_graph(graph, filler->separator);
3468 if (filler->line != ' ')
3469 append_to_rev_graph(graph, filler->line);
3473 /* Prepare the next rev graph */
3475 prepare_rev_graph(struct rev_graph *graph)
3479 /* First, traverse all lines of revisions up to the active one. */
3480 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
3481 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
3484 push_rev_graph(graph->next, graph->rev[graph->pos]);
3487 /* Interleave the new revision parent(s). */
3488 for (i = 0; i < graph->parents->size; i++)
3489 push_rev_graph(graph->next, graph->parents->rev[i]);
3491 /* Lastly, put any remaining revisions. */
3492 for (i = graph->pos + 1; i < graph->size; i++)
3493 push_rev_graph(graph->next, graph->rev[i]);
3497 update_rev_graph(struct rev_graph *graph)
3499 /* If this is the finalizing update ... */
3501 prepare_rev_graph(graph);
3503 /* Graph visualization needs a one rev look-ahead,
3504 * so the first update doesn't visualize anything. */
3505 if (!graph->prev->commit)
3508 draw_rev_graph(graph->prev);
3509 done_rev_graph(graph->prev->prev);
3518 main_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
3520 char buf[DATE_COLS + 1];
3521 struct commit *commit = line->data;
3522 enum line_type type;
3528 if (!*commit->author)
3531 wmove(view->win, lineno, col);
3535 wattrset(view->win, get_line_attr(type));
3536 wchgat(view->win, -1, 0, type, NULL);
3539 type = LINE_MAIN_COMMIT;
3540 wattrset(view->win, get_line_attr(LINE_MAIN_DATE));
3543 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time);
3544 waddnstr(view->win, buf, timelen);
3545 waddstr(view->win, " ");
3548 wmove(view->win, lineno, col);
3549 if (type != LINE_CURSOR)
3550 wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR));
3553 authorlen = utf8_length(commit->author, AUTHOR_COLS - 2, &col, &trimmed);
3555 authorlen = strlen(commit->author);
3556 if (authorlen > AUTHOR_COLS - 2) {
3557 authorlen = AUTHOR_COLS - 2;
3563 waddnstr(view->win, commit->author, authorlen);
3564 if (type != LINE_CURSOR)
3565 wattrset(view->win, get_line_attr(LINE_MAIN_DELIM));
3566 waddch(view->win, '~');
3568 waddstr(view->win, commit->author);
3572 if (type != LINE_CURSOR)
3573 wattrset(view->win, A_NORMAL);
3575 if (opt_rev_graph && commit->graph_size) {
3578 wmove(view->win, lineno, col);
3579 /* Using waddch() instead of waddnstr() ensures that
3580 * they'll be rendered correctly for the cursor line. */
3581 for (i = 0; i < commit->graph_size; i++)
3582 waddch(view->win, commit->graph[i]);
3584 waddch(view->win, ' ');
3585 col += commit->graph_size + 1;
3588 wmove(view->win, lineno, col);
3594 if (type == LINE_CURSOR)
3596 else if (commit->refs[i]->tag)
3597 wattrset(view->win, get_line_attr(LINE_MAIN_TAG));
3598 else if (commit->refs[i]->remote)
3599 wattrset(view->win, get_line_attr(LINE_MAIN_REMOTE));
3601 wattrset(view->win, get_line_attr(LINE_MAIN_REF));
3602 waddstr(view->win, "[");
3603 waddstr(view->win, commit->refs[i]->name);
3604 waddstr(view->win, "]");
3605 if (type != LINE_CURSOR)
3606 wattrset(view->win, A_NORMAL);
3607 waddstr(view->win, " ");
3608 col += strlen(commit->refs[i]->name) + STRING_SIZE("[] ");
3609 } while (commit->refs[i++]->next);
3612 if (type != LINE_CURSOR)
3613 wattrset(view->win, get_line_attr(type));
3616 int titlelen = strlen(commit->title);
3618 if (col + titlelen > view->width)
3619 titlelen = view->width - col;
3621 waddnstr(view->win, commit->title, titlelen);
3627 /* Reads git log --pretty=raw output and parses it into the commit struct. */
3629 main_read(struct view *view, char *line)
3631 static struct rev_graph *graph = graph_stacks;
3632 enum line_type type;
3633 struct commit *commit;
3636 update_rev_graph(graph);
3640 type = get_line_type(line);
3641 if (type == LINE_COMMIT) {
3642 commit = calloc(1, sizeof(struct commit));
3646 string_copy_rev(commit->id, line + STRING_SIZE("commit "));
3647 commit->refs = get_refs(commit->id);
3648 graph->commit = commit;
3649 add_line_data(view, commit, LINE_MAIN_COMMIT);
3655 commit = view->line[view->lines - 1].data;
3659 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
3664 /* Parse author lines where the name may be empty:
3665 * author <email@address.tld> 1138474660 +0100
3667 char *ident = line + STRING_SIZE("author ");
3668 char *nameend = strchr(ident, '<');
3669 char *emailend = strchr(ident, '>');
3671 if (!nameend || !emailend)
3674 update_rev_graph(graph);
3675 graph = graph->next;
3677 *nameend = *emailend = 0;
3678 ident = chomp_string(ident);
3680 ident = chomp_string(nameend + 1);
3685 string_ncopy(commit->author, ident, strlen(ident));
3687 /* Parse epoch and timezone */
3688 if (emailend[1] == ' ') {
3689 char *secs = emailend + 2;
3690 char *zone = strchr(secs, ' ');
3691 time_t time = (time_t) atol(secs);
3693 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
3697 tz = ('0' - zone[1]) * 60 * 60 * 10;
3698 tz += ('0' - zone[2]) * 60 * 60;
3699 tz += ('0' - zone[3]) * 60;
3700 tz += ('0' - zone[4]) * 60;
3708 gmtime_r(&time, &commit->time);
3713 /* Fill in the commit title if it has not already been set. */
3714 if (commit->title[0])
3717 /* Require titles to start with a non-space character at the
3718 * offset used by git log. */
3719 if (strncmp(line, " ", 4))
3722 /* Well, if the title starts with a whitespace character,
3723 * try to be forgiving. Otherwise we end up with no title. */
3724 while (isspace(*line))
3728 /* FIXME: More graceful handling of titles; append "..." to
3729 * shortened titles, etc. */
3731 string_ncopy(commit->title, line, strlen(line));
3738 main_request(struct view *view, enum request request, struct line *line)
3740 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3742 if (request == REQ_ENTER)
3743 open_view(view, REQ_VIEW_DIFF, flags);
3751 main_grep(struct view *view, struct line *line)
3753 struct commit *commit = line->data;
3754 enum { S_TITLE, S_AUTHOR, S_DATE, S_END } state;
3755 char buf[DATE_COLS + 1];
3758 for (state = S_TITLE; state < S_END; state++) {
3762 case S_TITLE: text = commit->title; break;
3763 case S_AUTHOR: text = commit->author; break;
3765 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
3774 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3782 main_select(struct view *view, struct line *line)
3784 struct commit *commit = line->data;
3786 string_copy_rev(view->ref, commit->id);
3787 string_copy_rev(ref_commit, view->ref);
3790 static struct view_ops main_ops = {
3802 * Unicode / UTF-8 handling
3804 * NOTE: Much of the following code for dealing with unicode is derived from
3805 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
3806 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
3809 /* I've (over)annotated a lot of code snippets because I am not entirely
3810 * confident that the approach taken by this small UTF-8 interface is correct.
3814 unicode_width(unsigned long c)
3817 (c <= 0x115f /* Hangul Jamo */
3820 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
3822 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
3823 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
3824 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
3825 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
3826 || (c >= 0xffe0 && c <= 0xffe6)
3827 || (c >= 0x20000 && c <= 0x2fffd)
3828 || (c >= 0x30000 && c <= 0x3fffd)))
3834 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
3835 * Illegal bytes are set one. */
3836 static const unsigned char utf8_bytes[256] = {
3837 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,
3838 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,
3839 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,
3840 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,
3841 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,
3842 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,
3843 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,
3844 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,
3847 /* Decode UTF-8 multi-byte representation into a unicode character. */
3848 static inline unsigned long
3849 utf8_to_unicode(const char *string, size_t length)
3851 unsigned long unicode;
3855 unicode = string[0];
3858 unicode = (string[0] & 0x1f) << 6;
3859 unicode += (string[1] & 0x3f);
3862 unicode = (string[0] & 0x0f) << 12;
3863 unicode += ((string[1] & 0x3f) << 6);
3864 unicode += (string[2] & 0x3f);
3867 unicode = (string[0] & 0x0f) << 18;
3868 unicode += ((string[1] & 0x3f) << 12);
3869 unicode += ((string[2] & 0x3f) << 6);
3870 unicode += (string[3] & 0x3f);
3873 unicode = (string[0] & 0x0f) << 24;
3874 unicode += ((string[1] & 0x3f) << 18);
3875 unicode += ((string[2] & 0x3f) << 12);
3876 unicode += ((string[3] & 0x3f) << 6);
3877 unicode += (string[4] & 0x3f);
3880 unicode = (string[0] & 0x01) << 30;
3881 unicode += ((string[1] & 0x3f) << 24);
3882 unicode += ((string[2] & 0x3f) << 18);
3883 unicode += ((string[3] & 0x3f) << 12);
3884 unicode += ((string[4] & 0x3f) << 6);
3885 unicode += (string[5] & 0x3f);
3888 die("Invalid unicode length");
3891 /* Invalid characters could return the special 0xfffd value but NUL
3892 * should be just as good. */
3893 return unicode > 0xffff ? 0 : unicode;
3896 /* Calculates how much of string can be shown within the given maximum width
3897 * and sets trimmed parameter to non-zero value if all of string could not be
3900 * Additionally, adds to coloffset how many many columns to move to align with
3901 * the expected position. Takes into account how multi-byte and double-width
3902 * characters will effect the cursor position.
3904 * Returns the number of bytes to output from string to satisfy max_width. */
3906 utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed)
3908 const char *start = string;
3909 const char *end = strchr(string, '\0');
3915 while (string < end) {
3916 int c = *(unsigned char *) string;
3917 unsigned char bytes = utf8_bytes[c];
3919 unsigned long unicode;
3921 if (string + bytes > end)
3924 /* Change representation to figure out whether
3925 * it is a single- or double-width character. */
3927 unicode = utf8_to_unicode(string, bytes);
3928 /* FIXME: Graceful handling of invalid unicode character. */
3932 ucwidth = unicode_width(unicode);
3934 if (width > max_width) {
3939 /* The column offset collects the differences between the
3940 * number of bytes encoding a character and the number of
3941 * columns will be used for rendering said character.
3943 * So if some character A is encoded in 2 bytes, but will be
3944 * represented on the screen using only 1 byte this will and up
3945 * adding 1 to the multi-byte column offset.
3947 * Assumes that no double-width character can be encoding in
3948 * less than two bytes. */
3949 if (bytes > ucwidth)
3950 mbwidth += bytes - ucwidth;
3955 *coloffset += mbwidth;
3957 return string - start;
3965 /* Whether or not the curses interface has been initialized. */
3966 static bool cursed = FALSE;
3968 /* The status window is used for polling keystrokes. */
3969 static WINDOW *status_win;
3971 static bool status_empty = TRUE;
3973 /* Update status and title window. */
3975 report(const char *msg, ...)
3977 struct view *view = display[current_view];
3982 if (!status_empty || *msg) {
3985 va_start(args, msg);
3987 wmove(status_win, 0, 0);
3989 vwprintw(status_win, msg, args);
3990 status_empty = FALSE;
3992 status_empty = TRUE;
3994 wclrtoeol(status_win);
3995 wrefresh(status_win);
4000 update_view_title(view);
4001 update_display_cursor(view);
4004 /* Controls when nodelay should be in effect when polling user input. */
4006 set_nonblocking_input(bool loading)
4008 static unsigned int loading_views;
4010 if ((loading == FALSE && loading_views-- == 1) ||
4011 (loading == TRUE && loading_views++ == 0))
4012 nodelay(status_win, loading);
4020 /* Initialize the curses library */
4021 if (isatty(STDIN_FILENO)) {
4022 cursed = !!initscr();
4024 /* Leave stdin and stdout alone when acting as a pager. */
4025 FILE *io = fopen("/dev/tty", "r+");
4028 die("Failed to open /dev/tty");
4029 cursed = !!newterm(NULL, io, io);
4033 die("Failed to initialize curses");
4035 nonl(); /* Tell curses not to do NL->CR/NL on output */
4036 cbreak(); /* Take input chars one at a time, no wait for \n */
4037 noecho(); /* Don't echo input */
4038 leaveok(stdscr, TRUE);
4043 getmaxyx(stdscr, y, x);
4044 status_win = newwin(1, 0, y - 1, 0);
4046 die("Failed to create status window");
4048 /* Enable keyboard mapping */
4049 keypad(status_win, TRUE);
4050 wbkgdset(status_win, get_line_attr(LINE_STATUS));
4054 read_prompt(const char *prompt)
4056 enum { READING, STOP, CANCEL } status = READING;
4057 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
4060 while (status == READING) {
4066 foreach_view (view, i)
4071 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
4072 wclrtoeol(status_win);
4074 /* Refresh, accept single keystroke of input */
4075 key = wgetch(status_win);
4080 status = pos ? STOP : CANCEL;
4098 if (pos >= sizeof(buf)) {
4099 report("Input string too long");
4104 buf[pos++] = (char) key;
4108 /* Clear the status window */
4109 status_empty = FALSE;
4112 if (status == CANCEL)
4121 * Repository references
4124 static struct ref *refs;
4125 static size_t refs_size;
4127 /* Id <-> ref store */
4128 static struct ref ***id_refs;
4129 static size_t id_refs_size;
4131 static struct ref **
4134 struct ref ***tmp_id_refs;
4135 struct ref **ref_list = NULL;
4136 size_t ref_list_size = 0;
4139 for (i = 0; i < id_refs_size; i++)
4140 if (!strcmp(id, id_refs[i][0]->id))
4143 tmp_id_refs = realloc(id_refs, (id_refs_size + 1) * sizeof(*id_refs));
4147 id_refs = tmp_id_refs;
4149 for (i = 0; i < refs_size; i++) {
4152 if (strcmp(id, refs[i].id))
4155 tmp = realloc(ref_list, (ref_list_size + 1) * sizeof(*ref_list));
4163 if (ref_list_size > 0)
4164 ref_list[ref_list_size - 1]->next = 1;
4165 ref_list[ref_list_size] = &refs[i];
4167 /* XXX: The properties of the commit chains ensures that we can
4168 * safely modify the shared ref. The repo references will
4169 * always be similar for the same id. */
4170 ref_list[ref_list_size]->next = 0;
4175 id_refs[id_refs_size++] = ref_list;
4181 read_ref(char *id, size_t idlen, char *name, size_t namelen)
4185 bool remote = FALSE;
4187 if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) {
4188 /* Commits referenced by tags has "^{}" appended. */
4189 if (name[namelen - 1] != '}')
4192 while (namelen > 0 && name[namelen] != '^')
4196 namelen -= STRING_SIZE("refs/tags/");
4197 name += STRING_SIZE("refs/tags/");
4199 } else if (!strncmp(name, "refs/remotes/", STRING_SIZE("refs/remotes/"))) {
4201 namelen -= STRING_SIZE("refs/remotes/");
4202 name += STRING_SIZE("refs/remotes/");
4204 } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
4205 namelen -= STRING_SIZE("refs/heads/");
4206 name += STRING_SIZE("refs/heads/");
4208 } else if (!strcmp(name, "HEAD")) {
4212 refs = realloc(refs, sizeof(*refs) * (refs_size + 1));
4216 ref = &refs[refs_size++];
4217 ref->name = malloc(namelen + 1);
4221 strncpy(ref->name, name, namelen);
4222 ref->name[namelen] = 0;
4224 ref->remote = remote;
4225 string_copy_rev(ref->id, id);
4233 const char *cmd_env = getenv("TIG_LS_REMOTE");
4234 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
4236 return read_properties(popen(cmd, "r"), "\t", read_ref);
4240 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
4242 if (!strcmp(name, "i18n.commitencoding"))
4243 string_ncopy(opt_encoding, value, valuelen);
4245 if (!strcmp(name, "core.editor"))
4246 string_ncopy(opt_editor, value, valuelen);
4252 load_repo_config(void)
4254 return read_properties(popen("git repo-config --list", "r"),
4255 "=", read_repo_config_option);
4259 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
4261 if (!opt_git_dir[0])
4262 string_ncopy(opt_git_dir, name, namelen);
4264 string_ncopy(opt_cdup, name, namelen);
4268 /* XXX: The line outputted by "--show-cdup" can be empty so the option
4269 * must be the last one! */
4271 load_repo_info(void)
4273 return read_properties(popen("git rev-parse --git-dir --show-cdup 2>/dev/null", "r"),
4274 "=", read_repo_info);
4278 read_properties(FILE *pipe, const char *separators,
4279 int (*read_property)(char *, size_t, char *, size_t))
4281 char buffer[BUFSIZ];
4288 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
4293 name = chomp_string(name);
4294 namelen = strcspn(name, separators);
4296 if (name[namelen]) {
4298 value = chomp_string(name + namelen + 1);
4299 valuelen = strlen(value);
4306 state = read_property(name, namelen, value, valuelen);
4309 if (state != ERR && ferror(pipe))
4322 static void __NORETURN
4325 /* XXX: Restore tty modes and let the OS cleanup the rest! */
4331 static void __NORETURN
4332 die(const char *err, ...)
4338 va_start(args, err);
4339 fputs("tig: ", stderr);
4340 vfprintf(stderr, err, args);
4341 fputs("\n", stderr);
4348 main(int argc, char *argv[])
4351 enum request request;
4354 signal(SIGINT, quit);
4356 if (setlocale(LC_ALL, "")) {
4357 char *codeset = nl_langinfo(CODESET);
4359 string_ncopy(opt_codeset, codeset, strlen(codeset));
4362 if (load_repo_info() == ERR)
4363 die("Failed to load repo info.");
4365 /* Require a git repository unless when running in pager mode. */
4366 if (!opt_git_dir[0])
4367 die("Not a git repository");
4369 if (load_options() == ERR)
4370 die("Failed to load user config.");
4372 /* Load the repo config file so options can be overwritten from
4373 * the command line. */
4374 if (load_repo_config() == ERR)
4375 die("Failed to load repo config.");
4377 if (!parse_options(argc, argv))
4380 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
4381 opt_iconv = iconv_open(opt_codeset, opt_encoding);
4382 if (opt_iconv == ICONV_NONE)
4383 die("Failed to initialize character set conversion");
4386 if (load_refs() == ERR)
4387 die("Failed to load refs.");
4389 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
4390 view->cmd_env = getenv(view->cmd_env);
4392 request = opt_request;
4396 while (view_driver(display[current_view], request)) {
4400 foreach_view (view, i)
4403 /* Refresh, accept single keystroke of input */
4404 key = wgetch(status_win);
4406 /* wgetch() with nodelay() enabled returns ERR when there's no
4413 request = get_keybinding(display[current_view]->keymap, key);
4415 /* Some low-level request handling. This keeps access to
4416 * status_win restricted. */
4420 char *cmd = read_prompt(":");
4422 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
4423 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
4424 opt_request = REQ_VIEW_DIFF;
4426 opt_request = REQ_VIEW_PAGER;
4435 case REQ_SEARCH_BACK:
4437 const char *prompt = request == REQ_SEARCH
4439 char *search = read_prompt(prompt);
4442 string_ncopy(opt_search, search, strlen(search));
4447 case REQ_SCREEN_RESIZE:
4451 getmaxyx(stdscr, height, width);
4453 /* Resize the status view and let the view driver take
4454 * care of resizing the displayed views. */
4455 wresize(status_win, 1, width);
4456 mvwin(status_win, height - 1, 0);
4457 wrefresh(status_win);