1 /* Copyright (c) 2006-2007 Jonas Fonseca <fonseca@diku.dk>
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License as
5 * published by the Free Software Foundation; either version 2 of
6 * the License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
19 #define TIG_VERSION "unknown-version"
34 #include <sys/types.h>
48 #define __NORETURN __attribute__((__noreturn__))
53 static void __NORETURN die(const char *err, ...);
54 static void report(const char *msg, ...);
55 static int read_properties(FILE *pipe, const char *separators, int (*read)(char *, size_t, char *, size_t));
56 static void set_nonblocking_input(bool loading);
57 static size_t utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed);
59 #define ABS(x) ((x) >= 0 ? (x) : -(x))
60 #define MIN(x, y) ((x) < (y) ? (x) : (y))
62 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
63 #define STRING_SIZE(x) (sizeof(x) - 1)
65 #define SIZEOF_STR 1024 /* Default string size. */
66 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
67 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL */
71 #define REVGRAPH_INIT 'I'
72 #define REVGRAPH_MERGE 'M'
73 #define REVGRAPH_BRANCH '+'
74 #define REVGRAPH_COMMIT '*'
75 #define REVGRAPH_LINE '|'
77 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
79 /* This color name can be used to refer to the default term colors. */
80 #define COLOR_DEFAULT (-1)
82 #define ICONV_NONE ((iconv_t) -1)
84 #define ICONV_CONST /* nothing */
87 /* The format and size of the date column in the main view. */
88 #define DATE_FORMAT "%Y-%m-%d %H:%M"
89 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
91 #define AUTHOR_COLS 20
93 /* The default interval between line numbers. */
94 #define NUMBER_INTERVAL 1
98 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
101 #define GIT_CONFIG "git config"
104 #define TIG_LS_REMOTE \
105 "git ls-remote $(git rev-parse --git-dir) 2>/dev/null"
107 #define TIG_DIFF_CMD \
108 "git show --root --patch-with-stat --find-copies-harder -B -C %s 2>/dev/null"
110 #define TIG_LOG_CMD \
111 "git log --cc --stat -n100 %s 2>/dev/null"
113 #define TIG_MAIN_CMD \
114 "git log --topo-order --pretty=raw %s 2>/dev/null"
116 #define TIG_TREE_CMD \
119 #define TIG_BLOB_CMD \
120 "git cat-file blob %s"
122 /* XXX: Needs to be defined to the empty string. */
123 #define TIG_HELP_CMD ""
124 #define TIG_PAGER_CMD ""
125 #define TIG_STATUS_CMD ""
126 #define TIG_STAGE_CMD ""
128 /* Some ascii-shorthands fitted into the ncurses namespace. */
130 #define KEY_RETURN '\r'
135 char *name; /* Ref name; tag or head names are shortened. */
136 char id[SIZEOF_REV]; /* Commit SHA1 ID */
137 unsigned int tag:1; /* Is it a tag? */
138 unsigned int remote:1; /* Is it a remote ref? */
139 unsigned int next:1; /* For ref lists: are there more refs? */
142 static struct ref **get_refs(char *id);
151 set_from_int_map(struct int_map *map, size_t map_size,
152 int *value, const char *name, int namelen)
157 for (i = 0; i < map_size; i++)
158 if (namelen == map[i].namelen &&
159 !strncasecmp(name, map[i].name, namelen)) {
160 *value = map[i].value;
173 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
175 if (srclen > dstlen - 1)
178 strncpy(dst, src, srclen);
182 /* Shorthands for safely copying into a fixed buffer. */
184 #define string_copy(dst, src) \
185 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
187 #define string_ncopy(dst, src, srclen) \
188 string_ncopy_do(dst, sizeof(dst), src, srclen)
190 #define string_copy_rev(dst, src) \
191 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
193 #define string_add(dst, from, src) \
194 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
197 chomp_string(char *name)
201 while (isspace(*name))
204 namelen = strlen(name) - 1;
205 while (namelen > 0 && isspace(name[namelen]))
212 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
215 size_t pos = bufpos ? *bufpos : 0;
218 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
224 return pos >= bufsize ? FALSE : TRUE;
227 #define string_format(buf, fmt, args...) \
228 string_nformat(buf, sizeof(buf), NULL, fmt, args)
230 #define string_format_from(buf, from, fmt, args...) \
231 string_nformat(buf, sizeof(buf), from, fmt, args)
234 string_enum_compare(const char *str1, const char *str2, int len)
238 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
240 /* Diff-Header == DIFF_HEADER */
241 for (i = 0; i < len; i++) {
242 if (toupper(str1[i]) == toupper(str2[i]))
245 if (string_enum_sep(str1[i]) &&
246 string_enum_sep(str2[i]))
249 return str1[i] - str2[i];
257 * NOTE: The following is a slightly modified copy of the git project's shell
258 * quoting routines found in the quote.c file.
260 * Help to copy the thing properly quoted for the shell safety. any single
261 * quote is replaced with '\'', any exclamation point is replaced with '\!',
262 * and the whole thing is enclosed in a
265 * original sq_quote result
266 * name ==> name ==> 'name'
267 * a b ==> a b ==> 'a b'
268 * a'b ==> a'\''b ==> 'a'\''b'
269 * a!b ==> a'\!'b ==> 'a'\!'b'
273 sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src)
277 #define BUFPUT(x) do { if (bufsize < SIZEOF_STR) buf[bufsize++] = (x); } while (0)
280 while ((c = *src++)) {
281 if (c == '\'' || c == '!') {
292 if (bufsize < SIZEOF_STR)
304 /* XXX: Keep the view request first and in sync with views[]. */ \
305 REQ_GROUP("View switching") \
306 REQ_(VIEW_MAIN, "Show main view"), \
307 REQ_(VIEW_DIFF, "Show diff view"), \
308 REQ_(VIEW_LOG, "Show log view"), \
309 REQ_(VIEW_TREE, "Show tree view"), \
310 REQ_(VIEW_BLOB, "Show blob view"), \
311 REQ_(VIEW_HELP, "Show help page"), \
312 REQ_(VIEW_PAGER, "Show pager view"), \
313 REQ_(VIEW_STATUS, "Show status view"), \
314 REQ_(VIEW_STAGE, "Show stage view"), \
316 REQ_GROUP("View manipulation") \
317 REQ_(ENTER, "Enter current line and scroll"), \
318 REQ_(NEXT, "Move to next"), \
319 REQ_(PREVIOUS, "Move to previous"), \
320 REQ_(VIEW_NEXT, "Move focus to next view"), \
321 REQ_(REFRESH, "Reload and refresh"), \
322 REQ_(VIEW_CLOSE, "Close the current view"), \
323 REQ_(QUIT, "Close all views and quit"), \
325 REQ_GROUP("Cursor navigation") \
326 REQ_(MOVE_UP, "Move cursor one line up"), \
327 REQ_(MOVE_DOWN, "Move cursor one line down"), \
328 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
329 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
330 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
331 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
333 REQ_GROUP("Scrolling") \
334 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
335 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
336 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
337 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
339 REQ_GROUP("Searching") \
340 REQ_(SEARCH, "Search the view"), \
341 REQ_(SEARCH_BACK, "Search backwards in the view"), \
342 REQ_(FIND_NEXT, "Find next search match"), \
343 REQ_(FIND_PREV, "Find previous search match"), \
346 REQ_(PROMPT, "Bring up the prompt"), \
347 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
348 REQ_(SCREEN_RESIZE, "Resize the screen"), \
349 REQ_(SHOW_VERSION, "Show version information"), \
350 REQ_(STOP_LOADING, "Stop all loading views"), \
351 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
352 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
353 REQ_(STATUS_UPDATE, "Update file status"), \
354 REQ_(STATUS_MERGE, "Merge file using external tool"), \
355 REQ_(EDIT, "Open in editor"), \
356 REQ_(CHERRY_PICK, "Cherry-pick commit to current branch"), \
357 REQ_(NONE, "Do nothing")
360 /* User action requests. */
362 #define REQ_GROUP(help)
363 #define REQ_(req, help) REQ_##req
365 /* Offset all requests to avoid conflicts with ncurses getch values. */
366 REQ_OFFSET = KEY_MAX + 1,
373 struct request_info {
374 enum request request;
380 static struct request_info req_info[] = {
381 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
382 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
389 get_request(const char *name)
391 int namelen = strlen(name);
394 for (i = 0; i < ARRAY_SIZE(req_info); i++)
395 if (req_info[i].namelen == namelen &&
396 !string_enum_compare(req_info[i].name, name, namelen))
397 return req_info[i].request;
407 static const char usage[] =
408 "tig " TIG_VERSION " (" __DATE__ ")\n"
410 "Usage: tig [options]\n"
411 " or: tig [options] [--] [git log options]\n"
412 " or: tig [options] log [git log options]\n"
413 " or: tig [options] diff [git diff options]\n"
414 " or: tig [options] show [git show options]\n"
415 " or: tig [options] < [git command output]\n"
418 " -l Start up in log view\n"
419 " -d Start up in diff view\n"
420 " -S Start up in status view\n"
421 " -n[I], --line-number[=I] Show line numbers with given interval\n"
422 " -b[N], --tab-size[=N] Set number of spaces for tab expansion\n"
423 " -- Mark end of tig options\n"
424 " -v, --version Show version and exit\n"
425 " -h, --help Show help message and exit\n";
427 /* Option and state variables. */
428 static bool opt_line_number = FALSE;
429 static bool opt_rev_graph = FALSE;
430 static int opt_num_interval = NUMBER_INTERVAL;
431 static int opt_tab_size = TABSIZE;
432 static enum request opt_request = REQ_VIEW_MAIN;
433 static char opt_cmd[SIZEOF_STR] = "";
434 static char opt_path[SIZEOF_STR] = "";
435 static FILE *opt_pipe = NULL;
436 static char opt_encoding[20] = "UTF-8";
437 static bool opt_utf8 = TRUE;
438 static char opt_codeset[20] = "UTF-8";
439 static iconv_t opt_iconv = ICONV_NONE;
440 static char opt_search[SIZEOF_STR] = "";
441 static char opt_cdup[SIZEOF_STR] = "";
442 static char opt_git_dir[SIZEOF_STR] = "";
443 static char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
444 static char opt_editor[SIZEOF_STR] = "";
452 check_option(char *opt, char short_name, char *name, enum option_type type, ...)
462 int namelen = strlen(name);
466 if (strncmp(opt, name, namelen))
469 if (opt[namelen] == '=')
470 value = opt + namelen + 1;
473 if (!short_name || opt[1] != short_name)
478 va_start(args, type);
479 if (type == OPT_INT) {
480 number = va_arg(args, int *);
482 *number = atoi(value);
489 /* Returns the index of log or diff command or -1 to exit. */
491 parse_options(int argc, char *argv[])
495 for (i = 1; i < argc; i++) {
498 if (!strcmp(opt, "log") ||
499 !strcmp(opt, "diff") ||
500 !strcmp(opt, "show")) {
501 opt_request = opt[0] == 'l'
502 ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
506 if (opt[0] && opt[0] != '-')
509 if (!strcmp(opt, "-l")) {
510 opt_request = REQ_VIEW_LOG;
514 if (!strcmp(opt, "-d")) {
515 opt_request = REQ_VIEW_DIFF;
519 if (!strcmp(opt, "-S")) {
520 opt_request = REQ_VIEW_STATUS;
524 if (check_option(opt, 'n', "line-number", OPT_INT, &opt_num_interval)) {
525 opt_line_number = TRUE;
529 if (check_option(opt, 'b', "tab-size", OPT_INT, &opt_tab_size)) {
530 opt_tab_size = MIN(opt_tab_size, TABSIZE);
534 if (check_option(opt, 'v', "version", OPT_NONE)) {
535 printf("tig version %s\n", TIG_VERSION);
539 if (check_option(opt, 'h', "help", OPT_NONE)) {
544 if (!strcmp(opt, "--")) {
549 die("unknown option '%s'\n\n%s", opt, usage);
552 if (!isatty(STDIN_FILENO)) {
553 opt_request = REQ_VIEW_PAGER;
556 } else if (i < argc) {
559 if (opt_request == REQ_VIEW_MAIN)
560 /* XXX: This is vulnerable to the user overriding
561 * options required for the main view parser. */
562 string_copy(opt_cmd, "git log --pretty=raw");
564 string_copy(opt_cmd, "git");
565 buf_size = strlen(opt_cmd);
567 while (buf_size < sizeof(opt_cmd) && i < argc) {
568 opt_cmd[buf_size++] = ' ';
569 buf_size = sq_quote(opt_cmd, buf_size, argv[i++]);
572 if (buf_size >= sizeof(opt_cmd))
573 die("command too long");
575 opt_cmd[buf_size] = 0;
578 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
586 * Line-oriented content detection.
590 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
591 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
592 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
593 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
594 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
595 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
596 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
597 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
598 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
599 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
600 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
601 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
602 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
603 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
604 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
605 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
606 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
607 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
608 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
609 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
610 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
611 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
612 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
613 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
614 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
615 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
616 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
617 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
618 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
619 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
620 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
621 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
622 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
623 LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
624 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
625 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
626 LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
627 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
628 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
629 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
630 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
631 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
632 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
633 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
634 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
635 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
636 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0)
639 #define LINE(type, line, fg, bg, attr) \
646 const char *name; /* Option name. */
647 int namelen; /* Size of option name. */
648 const char *line; /* The start of line to match. */
649 int linelen; /* Size of string to match. */
650 int fg, bg, attr; /* Color and text attributes for the lines. */
653 static struct line_info line_info[] = {
654 #define LINE(type, line, fg, bg, attr) \
655 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
660 static enum line_type
661 get_line_type(char *line)
663 int linelen = strlen(line);
666 for (type = 0; type < ARRAY_SIZE(line_info); type++)
667 /* Case insensitive search matches Signed-off-by lines better. */
668 if (linelen >= line_info[type].linelen &&
669 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
676 get_line_attr(enum line_type type)
678 assert(type < ARRAY_SIZE(line_info));
679 return COLOR_PAIR(type) | line_info[type].attr;
682 static struct line_info *
683 get_line_info(char *name, int namelen)
687 for (type = 0; type < ARRAY_SIZE(line_info); type++)
688 if (namelen == line_info[type].namelen &&
689 !string_enum_compare(line_info[type].name, name, namelen))
690 return &line_info[type];
698 int default_bg = COLOR_BLACK;
699 int default_fg = COLOR_WHITE;
704 if (use_default_colors() != ERR) {
709 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
710 struct line_info *info = &line_info[type];
711 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
712 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
714 init_pair(type, fg, bg);
722 unsigned int selected:1;
724 void *data; /* User data */
734 enum request request;
735 struct keybinding *next;
738 static struct keybinding default_keybindings[] = {
740 { 'm', REQ_VIEW_MAIN },
741 { 'd', REQ_VIEW_DIFF },
742 { 'l', REQ_VIEW_LOG },
743 { 't', REQ_VIEW_TREE },
744 { 'f', REQ_VIEW_BLOB },
745 { 'p', REQ_VIEW_PAGER },
746 { 'h', REQ_VIEW_HELP },
747 { 'S', REQ_VIEW_STATUS },
748 { 'c', REQ_VIEW_STAGE },
750 /* View manipulation */
751 { 'q', REQ_VIEW_CLOSE },
752 { KEY_TAB, REQ_VIEW_NEXT },
753 { KEY_RETURN, REQ_ENTER },
754 { KEY_UP, REQ_PREVIOUS },
755 { KEY_DOWN, REQ_NEXT },
756 { 'R', REQ_REFRESH },
758 /* Cursor navigation */
759 { 'k', REQ_MOVE_UP },
760 { 'j', REQ_MOVE_DOWN },
761 { KEY_HOME, REQ_MOVE_FIRST_LINE },
762 { KEY_END, REQ_MOVE_LAST_LINE },
763 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
764 { ' ', REQ_MOVE_PAGE_DOWN },
765 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
766 { 'b', REQ_MOVE_PAGE_UP },
767 { '-', REQ_MOVE_PAGE_UP },
770 { KEY_IC, REQ_SCROLL_LINE_UP },
771 { KEY_DC, REQ_SCROLL_LINE_DOWN },
772 { 'w', REQ_SCROLL_PAGE_UP },
773 { 's', REQ_SCROLL_PAGE_DOWN },
777 { '?', REQ_SEARCH_BACK },
778 { 'n', REQ_FIND_NEXT },
779 { 'N', REQ_FIND_PREV },
783 { 'z', REQ_STOP_LOADING },
784 { 'v', REQ_SHOW_VERSION },
785 { 'r', REQ_SCREEN_REDRAW },
786 { '.', REQ_TOGGLE_LINENO },
787 { 'g', REQ_TOGGLE_REV_GRAPH },
789 { 'u', REQ_STATUS_UPDATE },
790 { 'M', REQ_STATUS_MERGE },
792 { 'C', REQ_CHERRY_PICK },
794 /* Using the ncurses SIGWINCH handler. */
795 { KEY_RESIZE, REQ_SCREEN_RESIZE },
798 #define KEYMAP_INFO \
811 #define KEYMAP_(name) KEYMAP_##name
816 static struct int_map keymap_table[] = {
817 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
822 #define set_keymap(map, name) \
823 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
825 static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)];
828 add_keybinding(enum keymap keymap, enum request request, int key)
830 struct keybinding *keybinding;
832 keybinding = calloc(1, sizeof(*keybinding));
834 die("Failed to allocate keybinding");
836 keybinding->alias = key;
837 keybinding->request = request;
838 keybinding->next = keybindings[keymap];
839 keybindings[keymap] = keybinding;
842 /* Looks for a key binding first in the given map, then in the generic map, and
843 * lastly in the default keybindings. */
845 get_keybinding(enum keymap keymap, int key)
847 struct keybinding *kbd;
850 for (kbd = keybindings[keymap]; kbd; kbd = kbd->next)
851 if (kbd->alias == key)
854 for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next)
855 if (kbd->alias == key)
858 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
859 if (default_keybindings[i].alias == key)
860 return default_keybindings[i].request;
862 return (enum request) key;
871 static struct key key_table[] = {
872 { "Enter", KEY_RETURN },
874 { "Backspace", KEY_BACKSPACE },
876 { "Escape", KEY_ESC },
877 { "Left", KEY_LEFT },
878 { "Right", KEY_RIGHT },
880 { "Down", KEY_DOWN },
881 { "Insert", KEY_IC },
882 { "Delete", KEY_DC },
884 { "Home", KEY_HOME },
886 { "PageUp", KEY_PPAGE },
887 { "PageDown", KEY_NPAGE },
897 { "F10", KEY_F(10) },
898 { "F11", KEY_F(11) },
899 { "F12", KEY_F(12) },
903 get_key_value(const char *name)
907 for (i = 0; i < ARRAY_SIZE(key_table); i++)
908 if (!strcasecmp(key_table[i].name, name))
909 return key_table[i].value;
911 if (strlen(name) == 1 && isprint(*name))
918 get_key_name(int key_value)
920 static char key_char[] = "'X'";
924 for (key = 0; key < ARRAY_SIZE(key_table); key++)
925 if (key_table[key].value == key_value)
926 seq = key_table[key].name;
930 isprint(key_value)) {
931 key_char[1] = (char) key_value;
935 return seq ? seq : "'?'";
939 get_key(enum request request)
941 static char buf[BUFSIZ];
942 static char key_char[] = "'X'";
949 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
950 struct keybinding *keybinding = &default_keybindings[i];
954 if (keybinding->request != request)
957 for (key = 0; key < ARRAY_SIZE(key_table); key++)
958 if (key_table[key].value == keybinding->alias)
959 seq = key_table[key].name;
962 keybinding->alias < 127 &&
963 isprint(keybinding->alias)) {
964 key_char[1] = (char) keybinding->alias;
971 if (!string_format_from(buf, &pos, "%s%s", sep, seq))
972 return "Too many keybindings!";
982 char cmd[SIZEOF_STR];
985 static struct run_request *run_request;
986 static size_t run_requests;
989 add_run_request(enum keymap keymap, int key, int argc, char **argv)
991 struct run_request *tmp;
992 struct run_request req = { keymap, key };
995 for (bufpos = 0; argc > 0; argc--, argv++)
996 if (!string_format_from(req.cmd, &bufpos, "%s ", *argv))
999 req.cmd[bufpos - 1] = 0;
1001 tmp = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1006 run_request[run_requests++] = req;
1008 return REQ_NONE + run_requests;
1011 static struct run_request *
1012 get_run_request(enum request request)
1014 if (request <= REQ_NONE)
1016 return &run_request[request - REQ_NONE - 1];
1020 * User config file handling.
1023 static struct int_map color_map[] = {
1024 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1036 #define set_color(color, name) \
1037 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1039 static struct int_map attr_map[] = {
1040 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1047 ATTR_MAP(UNDERLINE),
1050 #define set_attribute(attr, name) \
1051 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1053 static int config_lineno;
1054 static bool config_errors;
1055 static char *config_msg;
1057 /* Wants: object fgcolor bgcolor [attr] */
1059 option_color_command(int argc, char *argv[])
1061 struct line_info *info;
1063 if (argc != 3 && argc != 4) {
1064 config_msg = "Wrong number of arguments given to color command";
1068 info = get_line_info(argv[0], strlen(argv[0]));
1070 config_msg = "Unknown color name";
1074 if (set_color(&info->fg, argv[1]) == ERR ||
1075 set_color(&info->bg, argv[2]) == ERR) {
1076 config_msg = "Unknown color";
1080 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1081 config_msg = "Unknown attribute";
1088 /* Wants: name = value */
1090 option_set_command(int argc, char *argv[])
1093 config_msg = "Wrong number of arguments given to set command";
1097 if (strcmp(argv[1], "=")) {
1098 config_msg = "No value assigned";
1102 if (!strcmp(argv[0], "show-rev-graph")) {
1103 opt_rev_graph = (!strcmp(argv[2], "1") ||
1104 !strcmp(argv[2], "true") ||
1105 !strcmp(argv[2], "yes"));
1109 if (!strcmp(argv[0], "line-number-interval")) {
1110 opt_num_interval = atoi(argv[2]);
1114 if (!strcmp(argv[0], "tab-size")) {
1115 opt_tab_size = atoi(argv[2]);
1119 if (!strcmp(argv[0], "commit-encoding")) {
1120 char *arg = argv[2];
1121 int delimiter = *arg;
1124 switch (delimiter) {
1127 for (arg++, i = 0; arg[i]; i++)
1128 if (arg[i] == delimiter) {
1133 string_ncopy(opt_encoding, arg, strlen(arg));
1138 config_msg = "Unknown variable name";
1142 /* Wants: mode request key */
1144 option_bind_command(int argc, char *argv[])
1146 enum request request;
1151 config_msg = "Wrong number of arguments given to bind command";
1155 if (set_keymap(&keymap, argv[0]) == ERR) {
1156 config_msg = "Unknown key map";
1160 key = get_key_value(argv[1]);
1162 config_msg = "Unknown key";
1166 request = get_request(argv[2]);
1167 if (request == REQ_NONE && *argv[2]++ == '!')
1168 request = add_run_request(keymap, key, argc - 2, argv + 2);
1169 if (request == REQ_NONE) {
1170 config_msg = "Unknown request name";
1174 add_keybinding(keymap, request, key);
1180 set_option(char *opt, char *value)
1187 while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) {
1188 argv[argc++] = value;
1195 while (isspace(*value))
1199 if (!strcmp(opt, "color"))
1200 return option_color_command(argc, argv);
1202 if (!strcmp(opt, "set"))
1203 return option_set_command(argc, argv);
1205 if (!strcmp(opt, "bind"))
1206 return option_bind_command(argc, argv);
1208 config_msg = "Unknown option command";
1213 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1218 config_msg = "Internal error";
1220 /* Check for comment markers, since read_properties() will
1221 * only ensure opt and value are split at first " \t". */
1222 optlen = strcspn(opt, "#");
1226 if (opt[optlen] != 0) {
1227 config_msg = "No option value";
1231 /* Look for comment endings in the value. */
1232 size_t len = strcspn(value, "#");
1234 if (len < valuelen) {
1236 value[valuelen] = 0;
1239 status = set_option(opt, value);
1242 if (status == ERR) {
1243 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1244 config_lineno, (int) optlen, opt, config_msg);
1245 config_errors = TRUE;
1248 /* Always keep going if errors are encountered. */
1255 char *home = getenv("HOME");
1256 char buf[SIZEOF_STR];
1260 config_errors = FALSE;
1262 if (!home || !string_format(buf, "%s/.tigrc", home))
1265 /* It's ok that the file doesn't exist. */
1266 file = fopen(buf, "r");
1270 if (read_properties(file, " \t", read_option) == ERR ||
1271 config_errors == TRUE)
1272 fprintf(stderr, "Errors while loading %s.\n", buf);
1285 /* The display array of active views and the index of the current view. */
1286 static struct view *display[2];
1287 static unsigned int current_view;
1289 /* Reading from the prompt? */
1290 static bool input_mode = FALSE;
1292 #define foreach_displayed_view(view, i) \
1293 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1295 #define displayed_views() (display[1] != NULL ? 2 : 1)
1297 /* Current head and commit ID */
1298 static char ref_blob[SIZEOF_REF] = "";
1299 static char ref_commit[SIZEOF_REF] = "HEAD";
1300 static char ref_head[SIZEOF_REF] = "HEAD";
1303 const char *name; /* View name */
1304 const char *cmd_fmt; /* Default command line format */
1305 const char *cmd_env; /* Command line set via environment */
1306 const char *id; /* Points to either of ref_{head,commit,blob} */
1308 struct view_ops *ops; /* View operations */
1310 enum keymap keymap; /* What keymap does this view have */
1312 char cmd[SIZEOF_STR]; /* Command buffer */
1313 char ref[SIZEOF_REF]; /* Hovered commit reference */
1314 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1316 int height, width; /* The width and height of the main window */
1317 WINDOW *win; /* The main window */
1318 WINDOW *title; /* The title window living below the main window */
1321 unsigned long offset; /* Offset of the window top */
1322 unsigned long lineno; /* Current line number */
1325 char grep[SIZEOF_STR]; /* Search string */
1326 regex_t *regex; /* Pre-compiled regex */
1328 /* If non-NULL, points to the view that opened this view. If this view
1329 * is closed tig will switch back to the parent view. */
1330 struct view *parent;
1333 unsigned long lines; /* Total number of lines */
1334 struct line *line; /* Line index */
1335 unsigned long line_size;/* Total number of allocated lines */
1336 unsigned int digits; /* Number of digits in the lines member. */
1344 /* What type of content being displayed. Used in the title bar. */
1346 /* Open and reads in all view content. */
1347 bool (*open)(struct view *view);
1348 /* Read one line; updates view->line. */
1349 bool (*read)(struct view *view, char *data);
1350 /* Draw one line; @lineno must be < view->height. */
1351 bool (*draw)(struct view *view, struct line *line, unsigned int lineno, bool selected);
1352 /* Depending on view handle a special requests. */
1353 enum request (*request)(struct view *view, enum request request, struct line *line);
1354 /* Search for regex in a line. */
1355 bool (*grep)(struct view *view, struct line *line);
1357 void (*select)(struct view *view, struct line *line);
1360 static struct view_ops pager_ops;
1361 static struct view_ops main_ops;
1362 static struct view_ops tree_ops;
1363 static struct view_ops blob_ops;
1364 static struct view_ops help_ops;
1365 static struct view_ops status_ops;
1366 static struct view_ops stage_ops;
1368 #define VIEW_STR(name, cmd, env, ref, ops, map) \
1369 { name, cmd, #env, ref, ops, map}
1371 #define VIEW_(id, name, ops, ref) \
1372 VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id)
1375 static struct view views[] = {
1376 VIEW_(MAIN, "main", &main_ops, ref_head),
1377 VIEW_(DIFF, "diff", &pager_ops, ref_commit),
1378 VIEW_(LOG, "log", &pager_ops, ref_head),
1379 VIEW_(TREE, "tree", &tree_ops, ref_commit),
1380 VIEW_(BLOB, "blob", &blob_ops, ref_blob),
1381 VIEW_(HELP, "help", &help_ops, ""),
1382 VIEW_(PAGER, "pager", &pager_ops, "stdin"),
1383 VIEW_(STATUS, "status", &status_ops, ""),
1384 VIEW_(STAGE, "stage", &stage_ops, ""),
1387 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1389 #define foreach_view(view, i) \
1390 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1392 #define view_is_displayed(view) \
1393 (view == display[0] || view == display[1])
1396 draw_view_line(struct view *view, unsigned int lineno)
1399 bool selected = (view->offset + lineno == view->lineno);
1402 assert(view_is_displayed(view));
1404 if (view->offset + lineno >= view->lines)
1407 line = &view->line[view->offset + lineno];
1410 line->selected = TRUE;
1411 view->ops->select(view, line);
1412 } else if (line->selected) {
1413 line->selected = FALSE;
1414 wmove(view->win, lineno, 0);
1415 wclrtoeol(view->win);
1418 scrollok(view->win, FALSE);
1419 draw_ok = view->ops->draw(view, line, lineno, selected);
1420 scrollok(view->win, TRUE);
1426 redraw_view_from(struct view *view, int lineno)
1428 assert(0 <= lineno && lineno < view->height);
1430 for (; lineno < view->height; lineno++) {
1431 if (!draw_view_line(view, lineno))
1435 redrawwin(view->win);
1437 wnoutrefresh(view->win);
1439 wrefresh(view->win);
1443 redraw_view(struct view *view)
1446 redraw_view_from(view, 0);
1451 update_view_title(struct view *view)
1453 char buf[SIZEOF_STR];
1454 char state[SIZEOF_STR];
1455 size_t bufpos = 0, statelen = 0;
1457 assert(view_is_displayed(view));
1459 if (view != VIEW(REQ_VIEW_STATUS) && (view->lines || view->pipe)) {
1460 unsigned int view_lines = view->offset + view->height;
1461 unsigned int lines = view->lines
1462 ? MIN(view_lines, view->lines) * 100 / view->lines
1465 string_format_from(state, &statelen, "- %s %d of %d (%d%%)",
1472 time_t secs = time(NULL) - view->start_time;
1474 /* Three git seconds are a long time ... */
1476 string_format_from(state, &statelen, " %lds", secs);
1480 string_format_from(buf, &bufpos, "[%s]", view->name);
1481 if (*view->ref && bufpos < view->width) {
1482 size_t refsize = strlen(view->ref);
1483 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
1485 if (minsize < view->width)
1486 refsize = view->width - minsize + 7;
1487 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
1490 if (statelen && bufpos < view->width) {
1491 string_format_from(buf, &bufpos, " %s", state);
1494 if (view == display[current_view])
1495 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
1497 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
1499 mvwaddnstr(view->title, 0, 0, buf, bufpos);
1500 wclrtoeol(view->title);
1501 wmove(view->title, 0, view->width - 1);
1504 wnoutrefresh(view->title);
1506 wrefresh(view->title);
1510 resize_display(void)
1513 struct view *base = display[0];
1514 struct view *view = display[1] ? display[1] : display[0];
1516 /* Setup window dimensions */
1518 getmaxyx(stdscr, base->height, base->width);
1520 /* Make room for the status window. */
1524 /* Horizontal split. */
1525 view->width = base->width;
1526 view->height = SCALE_SPLIT_VIEW(base->height);
1527 base->height -= view->height;
1529 /* Make room for the title bar. */
1533 /* Make room for the title bar. */
1538 foreach_displayed_view (view, i) {
1540 view->win = newwin(view->height, 0, offset, 0);
1542 die("Failed to create %s view", view->name);
1544 scrollok(view->win, TRUE);
1546 view->title = newwin(1, 0, offset + view->height, 0);
1548 die("Failed to create title window");
1551 wresize(view->win, view->height, view->width);
1552 mvwin(view->win, offset, 0);
1553 mvwin(view->title, offset + view->height, 0);
1556 offset += view->height + 1;
1561 redraw_display(void)
1566 foreach_displayed_view (view, i) {
1568 update_view_title(view);
1573 update_display_cursor(struct view *view)
1575 /* Move the cursor to the right-most column of the cursor line.
1577 * XXX: This could turn out to be a bit expensive, but it ensures that
1578 * the cursor does not jump around. */
1580 wmove(view->win, view->lineno - view->offset, view->width - 1);
1581 wrefresh(view->win);
1589 /* Scrolling backend */
1591 do_scroll_view(struct view *view, int lines)
1593 bool redraw_current_line = FALSE;
1595 /* The rendering expects the new offset. */
1596 view->offset += lines;
1598 assert(0 <= view->offset && view->offset < view->lines);
1601 /* Move current line into the view. */
1602 if (view->lineno < view->offset) {
1603 view->lineno = view->offset;
1604 redraw_current_line = TRUE;
1605 } else if (view->lineno >= view->offset + view->height) {
1606 view->lineno = view->offset + view->height - 1;
1607 redraw_current_line = TRUE;
1610 assert(view->offset <= view->lineno && view->lineno < view->lines);
1612 /* Redraw the whole screen if scrolling is pointless. */
1613 if (view->height < ABS(lines)) {
1617 int line = lines > 0 ? view->height - lines : 0;
1618 int end = line + ABS(lines);
1620 wscrl(view->win, lines);
1622 for (; line < end; line++) {
1623 if (!draw_view_line(view, line))
1627 if (redraw_current_line)
1628 draw_view_line(view, view->lineno - view->offset);
1631 redrawwin(view->win);
1632 wrefresh(view->win);
1636 /* Scroll frontend */
1638 scroll_view(struct view *view, enum request request)
1642 assert(view_is_displayed(view));
1645 case REQ_SCROLL_PAGE_DOWN:
1646 lines = view->height;
1647 case REQ_SCROLL_LINE_DOWN:
1648 if (view->offset + lines > view->lines)
1649 lines = view->lines - view->offset;
1651 if (lines == 0 || view->offset + view->height >= view->lines) {
1652 report("Cannot scroll beyond the last line");
1657 case REQ_SCROLL_PAGE_UP:
1658 lines = view->height;
1659 case REQ_SCROLL_LINE_UP:
1660 if (lines > view->offset)
1661 lines = view->offset;
1664 report("Cannot scroll beyond the first line");
1672 die("request %d not handled in switch", request);
1675 do_scroll_view(view, lines);
1680 move_view(struct view *view, enum request request)
1682 int scroll_steps = 0;
1686 case REQ_MOVE_FIRST_LINE:
1687 steps = -view->lineno;
1690 case REQ_MOVE_LAST_LINE:
1691 steps = view->lines - view->lineno - 1;
1694 case REQ_MOVE_PAGE_UP:
1695 steps = view->height > view->lineno
1696 ? -view->lineno : -view->height;
1699 case REQ_MOVE_PAGE_DOWN:
1700 steps = view->lineno + view->height >= view->lines
1701 ? view->lines - view->lineno - 1 : view->height;
1713 die("request %d not handled in switch", request);
1716 if (steps <= 0 && view->lineno == 0) {
1717 report("Cannot move beyond the first line");
1720 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
1721 report("Cannot move beyond the last line");
1725 /* Move the current line */
1726 view->lineno += steps;
1727 assert(0 <= view->lineno && view->lineno < view->lines);
1729 /* Check whether the view needs to be scrolled */
1730 if (view->lineno < view->offset ||
1731 view->lineno >= view->offset + view->height) {
1732 scroll_steps = steps;
1733 if (steps < 0 && -steps > view->offset) {
1734 scroll_steps = -view->offset;
1736 } else if (steps > 0) {
1737 if (view->lineno == view->lines - 1 &&
1738 view->lines > view->height) {
1739 scroll_steps = view->lines - view->offset - 1;
1740 if (scroll_steps >= view->height)
1741 scroll_steps -= view->height - 1;
1746 if (!view_is_displayed(view)) {
1747 view->offset += scroll_steps;
1748 assert(0 <= view->offset && view->offset < view->lines);
1749 view->ops->select(view, &view->line[view->lineno]);
1753 /* Repaint the old "current" line if we be scrolling */
1754 if (ABS(steps) < view->height)
1755 draw_view_line(view, view->lineno - steps - view->offset);
1758 do_scroll_view(view, scroll_steps);
1762 /* Draw the current line */
1763 draw_view_line(view, view->lineno - view->offset);
1765 redrawwin(view->win);
1766 wrefresh(view->win);
1775 static void search_view(struct view *view, enum request request);
1778 find_next_line(struct view *view, unsigned long lineno, struct line *line)
1780 assert(view_is_displayed(view));
1782 if (!view->ops->grep(view, line))
1785 if (lineno - view->offset >= view->height) {
1786 view->offset = lineno;
1787 view->lineno = lineno;
1791 unsigned long old_lineno = view->lineno - view->offset;
1793 view->lineno = lineno;
1794 draw_view_line(view, old_lineno);
1796 draw_view_line(view, view->lineno - view->offset);
1797 redrawwin(view->win);
1798 wrefresh(view->win);
1801 report("Line %ld matches '%s'", lineno + 1, view->grep);
1806 find_next(struct view *view, enum request request)
1808 unsigned long lineno = view->lineno;
1813 report("No previous search");
1815 search_view(view, request);
1825 case REQ_SEARCH_BACK:
1834 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
1835 lineno += direction;
1837 /* Note, lineno is unsigned long so will wrap around in which case it
1838 * will become bigger than view->lines. */
1839 for (; lineno < view->lines; lineno += direction) {
1840 struct line *line = &view->line[lineno];
1842 if (find_next_line(view, lineno, line))
1846 report("No match found for '%s'", view->grep);
1850 search_view(struct view *view, enum request request)
1855 regfree(view->regex);
1858 view->regex = calloc(1, sizeof(*view->regex));
1863 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
1864 if (regex_err != 0) {
1865 char buf[SIZEOF_STR] = "unknown error";
1867 regerror(regex_err, view->regex, buf, sizeof(buf));
1868 report("Search failed: %s", buf);
1872 string_copy(view->grep, opt_search);
1874 find_next(view, request);
1878 * Incremental updating
1882 end_update(struct view *view)
1886 set_nonblocking_input(FALSE);
1887 if (view->pipe == stdin)
1895 begin_update(struct view *view)
1901 string_copy(view->cmd, opt_cmd);
1903 /* When running random commands, initially show the
1904 * command in the title. However, it maybe later be
1905 * overwritten if a commit line is selected. */
1906 if (view == VIEW(REQ_VIEW_PAGER))
1907 string_copy(view->ref, view->cmd);
1911 } else if (view == VIEW(REQ_VIEW_TREE)) {
1912 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
1913 char path[SIZEOF_STR];
1915 if (strcmp(view->vid, view->id))
1916 opt_path[0] = path[0] = 0;
1917 else if (sq_quote(path, 0, opt_path) >= sizeof(path))
1920 if (!string_format(view->cmd, format, view->id, path))
1924 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
1925 const char *id = view->id;
1927 if (!string_format(view->cmd, format, id, id, id, id, id))
1930 /* Put the current ref_* value to the view title ref
1931 * member. This is needed by the blob view. Most other
1932 * views sets it automatically after loading because the
1933 * first line is a commit line. */
1934 string_copy_rev(view->ref, view->id);
1937 /* Special case for the pager view. */
1939 view->pipe = opt_pipe;
1942 view->pipe = popen(view->cmd, "r");
1948 set_nonblocking_input(TRUE);
1953 string_copy_rev(view->vid, view->id);
1958 for (i = 0; i < view->lines; i++)
1959 if (view->line[i].data)
1960 free(view->line[i].data);
1966 view->start_time = time(NULL);
1971 static struct line *
1972 realloc_lines(struct view *view, size_t line_size)
1974 struct line *tmp = realloc(view->line, sizeof(*view->line) * line_size);
1980 view->line_size = line_size;
1985 update_view(struct view *view)
1987 char in_buffer[BUFSIZ];
1988 char out_buffer[BUFSIZ * 2];
1990 /* The number of lines to read. If too low it will cause too much
1991 * redrawing (and possible flickering), if too high responsiveness
1993 unsigned long lines = view->height;
1994 int redraw_from = -1;
1999 /* Only redraw if lines are visible. */
2000 if (view->offset + view->height >= view->lines)
2001 redraw_from = view->lines - view->offset;
2003 /* FIXME: This is probably not perfect for backgrounded views. */
2004 if (!realloc_lines(view, view->lines + lines))
2007 while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) {
2008 size_t linelen = strlen(line);
2011 line[linelen - 1] = 0;
2013 if (opt_iconv != ICONV_NONE) {
2014 ICONV_CONST char *inbuf = line;
2015 size_t inlen = linelen;
2017 char *outbuf = out_buffer;
2018 size_t outlen = sizeof(out_buffer);
2022 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2023 if (ret != (size_t) -1) {
2025 linelen = strlen(out_buffer);
2029 if (!view->ops->read(view, line))
2039 lines = view->lines;
2040 for (digits = 0; lines; digits++)
2043 /* Keep the displayed view in sync with line number scaling. */
2044 if (digits != view->digits) {
2045 view->digits = digits;
2050 if (!view_is_displayed(view))
2053 if (view == VIEW(REQ_VIEW_TREE)) {
2054 /* Clear the view and redraw everything since the tree sorting
2055 * might have rearranged things. */
2058 } else if (redraw_from >= 0) {
2059 /* If this is an incremental update, redraw the previous line
2060 * since for commits some members could have changed when
2061 * loading the main view. */
2062 if (redraw_from > 0)
2065 /* Since revision graph visualization requires knowledge
2066 * about the parent commit, it causes a further one-off
2067 * needed to be redrawn for incremental updates. */
2068 if (redraw_from > 0 && opt_rev_graph)
2071 /* Incrementally draw avoids flickering. */
2072 redraw_view_from(view, redraw_from);
2075 /* Update the title _after_ the redraw so that if the redraw picks up a
2076 * commit reference in view->ref it'll be available here. */
2077 update_view_title(view);
2080 if (ferror(view->pipe)) {
2081 report("Failed to read: %s", strerror(errno));
2084 } else if (feof(view->pipe)) {
2092 report("Allocation failure");
2095 view->ops->read(view, NULL);
2100 static struct line *
2101 add_line_data(struct view *view, void *data, enum line_type type)
2103 struct line *line = &view->line[view->lines++];
2105 memset(line, 0, sizeof(*line));
2112 static struct line *
2113 add_line_text(struct view *view, char *data, enum line_type type)
2116 data = strdup(data);
2118 return data ? add_line_data(view, data, type) : NULL;
2127 OPEN_DEFAULT = 0, /* Use default view switching. */
2128 OPEN_SPLIT = 1, /* Split current view. */
2129 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2130 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2134 open_view(struct view *prev, enum request request, enum open_flags flags)
2136 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2137 bool split = !!(flags & OPEN_SPLIT);
2138 bool reload = !!(flags & OPEN_RELOAD);
2139 struct view *view = VIEW(request);
2140 int nviews = displayed_views();
2141 struct view *base_view = display[0];
2143 if (view == prev && nviews == 1 && !reload) {
2144 report("Already in %s view", view->name);
2148 if (view->ops->open) {
2149 if (!view->ops->open(view)) {
2150 report("Failed to load %s view", view->name);
2154 } else if ((reload || strcmp(view->vid, view->id)) &&
2155 !begin_update(view)) {
2156 report("Failed to load %s view", view->name);
2165 /* Maximize the current view. */
2166 memset(display, 0, sizeof(display));
2168 display[current_view] = view;
2171 /* Resize the view when switching between split- and full-screen,
2172 * or when switching between two different full-screen views. */
2173 if (nviews != displayed_views() ||
2174 (nviews == 1 && base_view != display[0]))
2177 if (split && prev->lineno - prev->offset >= prev->height) {
2178 /* Take the title line into account. */
2179 int lines = prev->lineno - prev->offset - prev->height + 1;
2181 /* Scroll the view that was split if the current line is
2182 * outside the new limited view. */
2183 do_scroll_view(prev, lines);
2186 if (prev && view != prev) {
2187 if (split && !backgrounded) {
2188 /* "Blur" the previous view. */
2189 update_view_title(prev);
2192 view->parent = prev;
2195 if (view->pipe && view->lines == 0) {
2196 /* Clear the old view and let the incremental updating refill
2205 /* If the view is backgrounded the above calls to report()
2206 * won't redraw the view title. */
2208 update_view_title(view);
2212 open_external_viewer(const char *cmd)
2214 def_prog_mode(); /* save current tty modes */
2215 endwin(); /* restore original tty modes */
2217 fprintf(stderr, "Press Enter to continue");
2224 open_mergetool(const char *file)
2226 char cmd[SIZEOF_STR];
2227 char file_sq[SIZEOF_STR];
2229 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2230 string_format(cmd, "git mergetool %s", file_sq)) {
2231 open_external_viewer(cmd);
2236 open_editor(bool from_root, const char *file)
2238 char cmd[SIZEOF_STR];
2239 char file_sq[SIZEOF_STR];
2241 char *prefix = from_root ? opt_cdup : "";
2243 editor = getenv("GIT_EDITOR");
2244 if (!editor && *opt_editor)
2245 editor = opt_editor;
2247 editor = getenv("VISUAL");
2249 editor = getenv("EDITOR");
2253 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2254 string_format(cmd, "%s %s%s", editor, prefix, file_sq)) {
2255 open_external_viewer(cmd);
2260 open_run_request(enum request request)
2262 struct run_request *req = get_run_request(request);
2263 char buf[SIZEOF_STR * 2];
2268 report("Unknown run request");
2276 char *next = strstr(cmd, "%(");
2277 int len = next - cmd;
2284 } else if (!strncmp(next, "%(head)", 7)) {
2287 } else if (!strncmp(next, "%(commit)", 9)) {
2290 } else if (!strncmp(next, "%(blob)", 7)) {
2294 report("Unknown replacement in run request: `%s`", req->cmd);
2298 if (!string_format_from(buf, &bufpos, "%.*s%s", len, cmd, value))
2302 next = strchr(next, ')') + 1;
2306 open_external_viewer(buf);
2310 * User request switch noodle
2314 view_driver(struct view *view, enum request request)
2318 if (request == REQ_NONE) {
2323 if (request > REQ_NONE) {
2324 open_run_request(request);
2328 if (view && view->lines) {
2329 request = view->ops->request(view, request, &view->line[view->lineno]);
2330 if (request == REQ_NONE)
2337 case REQ_MOVE_PAGE_UP:
2338 case REQ_MOVE_PAGE_DOWN:
2339 case REQ_MOVE_FIRST_LINE:
2340 case REQ_MOVE_LAST_LINE:
2341 move_view(view, request);
2344 case REQ_SCROLL_LINE_DOWN:
2345 case REQ_SCROLL_LINE_UP:
2346 case REQ_SCROLL_PAGE_DOWN:
2347 case REQ_SCROLL_PAGE_UP:
2348 scroll_view(view, request);
2353 report("No file chosen, press %s to open tree view",
2354 get_key(REQ_VIEW_TREE));
2357 open_view(view, request, OPEN_DEFAULT);
2360 case REQ_VIEW_PAGER:
2361 if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2362 report("No pager content, press %s to run command from prompt",
2363 get_key(REQ_PROMPT));
2366 open_view(view, request, OPEN_DEFAULT);
2369 case REQ_VIEW_STAGE:
2370 if (!VIEW(REQ_VIEW_STAGE)->lines) {
2371 report("No stage content, press %s to open the status view and choose file",
2372 get_key(REQ_VIEW_STATUS));
2375 open_view(view, request, OPEN_DEFAULT);
2378 case REQ_VIEW_STATUS:
2379 if (opt_is_inside_work_tree == FALSE) {
2380 report("The status view requires a working tree");
2383 open_view(view, request, OPEN_DEFAULT);
2391 open_view(view, request, OPEN_DEFAULT);
2396 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2398 if ((view == VIEW(REQ_VIEW_DIFF) &&
2399 view->parent == VIEW(REQ_VIEW_MAIN)) ||
2400 (view == VIEW(REQ_VIEW_STAGE) &&
2401 view->parent == VIEW(REQ_VIEW_STATUS)) ||
2402 (view == VIEW(REQ_VIEW_BLOB) &&
2403 view->parent == VIEW(REQ_VIEW_TREE))) {
2406 view = view->parent;
2407 line = view->lineno;
2408 move_view(view, request);
2409 if (view_is_displayed(view))
2410 update_view_title(view);
2411 if (line != view->lineno)
2412 view->ops->request(view, REQ_ENTER,
2413 &view->line[view->lineno]);
2416 move_view(view, request);
2422 int nviews = displayed_views();
2423 int next_view = (current_view + 1) % nviews;
2425 if (next_view == current_view) {
2426 report("Only one view is displayed");
2430 current_view = next_view;
2431 /* Blur out the title of the previous view. */
2432 update_view_title(view);
2437 report("Refreshing is not yet supported for the %s view", view->name);
2440 case REQ_TOGGLE_LINENO:
2441 opt_line_number = !opt_line_number;
2445 case REQ_TOGGLE_REV_GRAPH:
2446 opt_rev_graph = !opt_rev_graph;
2451 /* Always reload^Wrerun commands from the prompt. */
2452 open_view(view, opt_request, OPEN_RELOAD);
2456 case REQ_SEARCH_BACK:
2457 search_view(view, request);
2462 find_next(view, request);
2465 case REQ_STOP_LOADING:
2466 for (i = 0; i < ARRAY_SIZE(views); i++) {
2469 report("Stopped loading the %s view", view->name),
2474 case REQ_SHOW_VERSION:
2475 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
2478 case REQ_SCREEN_RESIZE:
2481 case REQ_SCREEN_REDRAW:
2486 report("Nothing to edit");
2489 case REQ_CHERRY_PICK:
2490 report("Nothing to cherry-pick");
2494 report("Nothing to enter");
2498 case REQ_VIEW_CLOSE:
2499 /* XXX: Mark closed views by letting view->parent point to the
2500 * view itself. Parents to closed view should never be
2503 view->parent->parent != view->parent) {
2504 memset(display, 0, sizeof(display));
2506 display[current_view] = view->parent;
2507 view->parent = view;
2517 /* An unknown key will show most commonly used commands. */
2518 report("Unknown key, press 'h' for help");
2531 pager_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
2533 char *text = line->data;
2534 enum line_type type = line->type;
2535 int textlen = strlen(text);
2538 wmove(view->win, lineno, 0);
2542 wchgat(view->win, -1, 0, type, NULL);
2545 attr = get_line_attr(type);
2546 wattrset(view->win, attr);
2548 if (opt_line_number || opt_tab_size < TABSIZE) {
2549 static char spaces[] = " ";
2550 int col_offset = 0, col = 0;
2552 if (opt_line_number) {
2553 unsigned long real_lineno = view->offset + lineno + 1;
2555 if (real_lineno == 1 ||
2556 (real_lineno % opt_num_interval) == 0) {
2557 wprintw(view->win, "%.*d", view->digits, real_lineno);
2560 waddnstr(view->win, spaces,
2561 MIN(view->digits, STRING_SIZE(spaces)));
2563 waddstr(view->win, ": ");
2564 col_offset = view->digits + 2;
2567 while (text && col_offset + col < view->width) {
2568 int cols_max = view->width - col_offset - col;
2572 if (*text == '\t') {
2574 assert(sizeof(spaces) > TABSIZE);
2576 cols = opt_tab_size - (col % opt_tab_size);
2579 text = strchr(text, '\t');
2580 cols = line ? text - pos : strlen(pos);
2583 waddnstr(view->win, pos, MIN(cols, cols_max));
2588 int col = 0, pos = 0;
2590 for (; pos < textlen && col < view->width; pos++, col++)
2591 if (text[pos] == '\t')
2592 col += TABSIZE - (col % TABSIZE) - 1;
2594 waddnstr(view->win, text, pos);
2601 add_describe_ref(char *buf, size_t *bufpos, char *commit_id, const char *sep)
2603 char refbuf[SIZEOF_STR];
2607 if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id))
2610 pipe = popen(refbuf, "r");
2614 if ((ref = fgets(refbuf, sizeof(refbuf), pipe)))
2615 ref = chomp_string(ref);
2621 /* This is the only fatal call, since it can "corrupt" the buffer. */
2622 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
2629 add_pager_refs(struct view *view, struct line *line)
2631 char buf[SIZEOF_STR];
2632 char *commit_id = line->data + STRING_SIZE("commit ");
2634 size_t bufpos = 0, refpos = 0;
2635 const char *sep = "Refs: ";
2636 bool is_tag = FALSE;
2638 assert(line->type == LINE_COMMIT);
2640 refs = get_refs(commit_id);
2642 if (view == VIEW(REQ_VIEW_DIFF))
2643 goto try_add_describe_ref;
2648 struct ref *ref = refs[refpos];
2649 char *fmt = ref->tag ? "%s[%s]" :
2650 ref->remote ? "%s<%s>" : "%s%s";
2652 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
2657 } while (refs[refpos++]->next);
2659 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
2660 try_add_describe_ref:
2661 /* Add <tag>-g<commit_id> "fake" reference. */
2662 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
2669 if (!realloc_lines(view, view->line_size + 1))
2672 add_line_text(view, buf, LINE_PP_REFS);
2676 pager_read(struct view *view, char *data)
2683 line = add_line_text(view, data, get_line_type(data));
2687 if (line->type == LINE_COMMIT &&
2688 (view == VIEW(REQ_VIEW_DIFF) ||
2689 view == VIEW(REQ_VIEW_LOG)))
2690 add_pager_refs(view, line);
2696 pager_request(struct view *view, enum request request, struct line *line)
2700 if (request != REQ_ENTER)
2703 if (line->type == LINE_COMMIT &&
2704 (view == VIEW(REQ_VIEW_LOG) ||
2705 view == VIEW(REQ_VIEW_PAGER))) {
2706 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
2710 /* Always scroll the view even if it was split. That way
2711 * you can use Enter to scroll through the log view and
2712 * split open each commit diff. */
2713 scroll_view(view, REQ_SCROLL_LINE_DOWN);
2715 /* FIXME: A minor workaround. Scrolling the view will call report("")
2716 * but if we are scrolling a non-current view this won't properly
2717 * update the view title. */
2719 update_view_title(view);
2725 pager_grep(struct view *view, struct line *line)
2728 char *text = line->data;
2733 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
2740 pager_select(struct view *view, struct line *line)
2742 if (line->type == LINE_COMMIT) {
2743 char *text = line->data + STRING_SIZE("commit ");
2745 if (view != VIEW(REQ_VIEW_PAGER))
2746 string_copy_rev(view->ref, text);
2747 string_copy_rev(ref_commit, text);
2751 static struct view_ops pager_ops = {
2767 help_open(struct view *view)
2770 int lines = ARRAY_SIZE(req_info) + 2;
2773 if (view->lines > 0)
2776 for (i = 0; i < ARRAY_SIZE(req_info); i++)
2777 if (!req_info[i].request)
2780 lines += run_requests + 1;
2782 view->line = calloc(lines, sizeof(*view->line));
2786 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
2788 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
2791 if (req_info[i].request == REQ_NONE)
2794 if (!req_info[i].request) {
2795 add_line_text(view, "", LINE_DEFAULT);
2796 add_line_text(view, req_info[i].help, LINE_DEFAULT);
2800 key = get_key(req_info[i].request);
2802 key = "(no key defined)";
2804 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
2807 add_line_text(view, buf, LINE_DEFAULT);
2811 add_line_text(view, "", LINE_DEFAULT);
2812 add_line_text(view, "External commands:", LINE_DEFAULT);
2815 for (i = 0; i < run_requests; i++) {
2816 struct run_request *req = get_run_request(REQ_NONE + i + 1);
2822 key = get_key_name(req->key);
2824 key = "(no key defined)";
2826 if (!string_format(buf, " %-10s %-14s `%s`",
2827 keymap_table[req->keymap].name,
2831 add_line_text(view, buf, LINE_DEFAULT);
2837 static struct view_ops help_ops = {
2852 struct tree_stack_entry {
2853 struct tree_stack_entry *prev; /* Entry below this in the stack */
2854 unsigned long lineno; /* Line number to restore */
2855 char *name; /* Position of name in opt_path */
2858 /* The top of the path stack. */
2859 static struct tree_stack_entry *tree_stack = NULL;
2860 unsigned long tree_lineno = 0;
2863 pop_tree_stack_entry(void)
2865 struct tree_stack_entry *entry = tree_stack;
2867 tree_lineno = entry->lineno;
2869 tree_stack = entry->prev;
2874 push_tree_stack_entry(char *name, unsigned long lineno)
2876 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
2877 size_t pathlen = strlen(opt_path);
2882 entry->prev = tree_stack;
2883 entry->name = opt_path + pathlen;
2886 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
2887 pop_tree_stack_entry();
2891 /* Move the current line to the first tree entry. */
2893 entry->lineno = lineno;
2896 /* Parse output from git-ls-tree(1):
2898 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
2899 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
2900 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
2901 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
2904 #define SIZEOF_TREE_ATTR \
2905 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
2907 #define TREE_UP_FORMAT "040000 tree %s\t.."
2910 tree_compare_entry(enum line_type type1, char *name1,
2911 enum line_type type2, char *name2)
2913 if (type1 != type2) {
2914 if (type1 == LINE_TREE_DIR)
2919 return strcmp(name1, name2);
2923 tree_read(struct view *view, char *text)
2925 size_t textlen = text ? strlen(text) : 0;
2926 char buf[SIZEOF_STR];
2928 enum line_type type;
2929 bool first_read = view->lines == 0;
2931 if (textlen <= SIZEOF_TREE_ATTR)
2934 type = text[STRING_SIZE("100644 ")] == 't'
2935 ? LINE_TREE_DIR : LINE_TREE_FILE;
2938 /* Add path info line */
2939 if (!string_format(buf, "Directory path /%s", opt_path) ||
2940 !realloc_lines(view, view->line_size + 1) ||
2941 !add_line_text(view, buf, LINE_DEFAULT))
2944 /* Insert "link" to parent directory. */
2946 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
2947 !realloc_lines(view, view->line_size + 1) ||
2948 !add_line_text(view, buf, LINE_TREE_DIR))
2953 /* Strip the path part ... */
2955 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
2956 size_t striplen = strlen(opt_path);
2957 char *path = text + SIZEOF_TREE_ATTR;
2959 if (pathlen > striplen)
2960 memmove(path, path + striplen,
2961 pathlen - striplen + 1);
2964 /* Skip "Directory ..." and ".." line. */
2965 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
2966 struct line *line = &view->line[pos];
2967 char *path1 = ((char *) line->data) + SIZEOF_TREE_ATTR;
2968 char *path2 = text + SIZEOF_TREE_ATTR;
2969 int cmp = tree_compare_entry(line->type, path1, type, path2);
2974 text = strdup(text);
2978 if (view->lines > pos)
2979 memmove(&view->line[pos + 1], &view->line[pos],
2980 (view->lines - pos) * sizeof(*line));
2982 line = &view->line[pos];
2989 if (!add_line_text(view, text, type))
2992 if (tree_lineno > view->lineno) {
2993 view->lineno = tree_lineno;
3001 tree_request(struct view *view, enum request request, struct line *line)
3003 enum open_flags flags;
3005 if (request != REQ_ENTER)
3008 /* Cleanup the stack if the tree view is at a different tree. */
3009 while (!*opt_path && tree_stack)
3010 pop_tree_stack_entry();
3012 switch (line->type) {
3014 /* Depending on whether it is a subdir or parent (updir?) link
3015 * mangle the path buffer. */
3016 if (line == &view->line[1] && *opt_path) {
3017 pop_tree_stack_entry();
3020 char *data = line->data;
3021 char *basename = data + SIZEOF_TREE_ATTR;
3023 push_tree_stack_entry(basename, view->lineno);
3026 /* Trees and subtrees share the same ID, so they are not not
3027 * unique like blobs. */
3028 flags = OPEN_RELOAD;
3029 request = REQ_VIEW_TREE;
3032 case LINE_TREE_FILE:
3033 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3034 request = REQ_VIEW_BLOB;
3041 open_view(view, request, flags);
3042 if (request == REQ_VIEW_TREE) {
3043 view->lineno = tree_lineno;
3050 tree_select(struct view *view, struct line *line)
3052 char *text = line->data + STRING_SIZE("100644 blob ");
3054 if (line->type == LINE_TREE_FILE) {
3055 string_copy_rev(ref_blob, text);
3057 } else if (line->type != LINE_TREE_DIR) {
3061 string_copy_rev(view->ref, text);
3064 static struct view_ops tree_ops = {
3075 blob_read(struct view *view, char *line)
3077 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3080 static struct view_ops blob_ops = {
3099 char rev[SIZEOF_REV];
3103 char rev[SIZEOF_REV];
3105 char name[SIZEOF_STR];
3108 static struct status stage_status;
3109 static enum line_type stage_line_type;
3111 /* Get fields from the diff line:
3112 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3115 status_get_diff(struct status *file, char *buf, size_t bufsize)
3117 char *old_mode = buf + 1;
3118 char *new_mode = buf + 8;
3119 char *old_rev = buf + 15;
3120 char *new_rev = buf + 56;
3121 char *status = buf + 97;
3123 if (bufsize != 99 ||
3124 old_mode[-1] != ':' ||
3125 new_mode[-1] != ' ' ||
3126 old_rev[-1] != ' ' ||
3127 new_rev[-1] != ' ' ||
3131 file->status = *status;
3133 string_copy_rev(file->old.rev, old_rev);
3134 string_copy_rev(file->new.rev, new_rev);
3136 file->old.mode = strtoul(old_mode, NULL, 8);
3137 file->new.mode = strtoul(new_mode, NULL, 8);
3145 status_run(struct view *view, const char cmd[], bool diff, enum line_type type)
3147 struct status *file = NULL;
3148 struct status *unmerged = NULL;
3149 char buf[SIZEOF_STR * 4];
3153 pipe = popen(cmd, "r");
3157 add_line_data(view, NULL, type);
3159 while (!feof(pipe) && !ferror(pipe)) {
3163 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3166 bufsize += readsize;
3168 /* Process while we have NUL chars. */
3169 while ((sep = memchr(buf, 0, bufsize))) {
3170 size_t sepsize = sep - buf + 1;
3173 if (!realloc_lines(view, view->line_size + 1))
3176 file = calloc(1, sizeof(*file));
3180 add_line_data(view, file, type);
3183 /* Parse diff info part. */
3187 } else if (!file->status) {
3188 if (!status_get_diff(file, buf, sepsize))
3192 memmove(buf, sep + 1, bufsize);
3194 sep = memchr(buf, 0, bufsize);
3197 sepsize = sep - buf + 1;
3199 /* Collapse all 'M'odified entries that
3200 * follow a associated 'U'nmerged entry.
3202 if (file->status == 'U') {
3205 } else if (unmerged) {
3206 int collapse = !strcmp(buf, unmerged->name);
3217 /* git-ls-files just delivers a NUL separated
3218 * list of file names similar to the second half
3219 * of the git-diff-* output. */
3220 string_ncopy(file->name, buf, sepsize);
3222 memmove(buf, sep + 1, bufsize);
3233 if (!view->line[view->lines - 1].data)
3234 add_line_data(view, NULL, LINE_STAT_NONE);
3240 /* Don't show unmerged entries in the staged section. */
3241 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached HEAD"
3242 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
3243 #define STATUS_LIST_OTHER_CMD \
3244 "git ls-files -z --others --exclude-per-directory=.gitignore"
3246 #define STATUS_DIFF_SHOW_CMD \
3247 "git diff --root --patch-with-stat --find-copies-harder -B -C %s -- %s 2>/dev/null"
3249 /* First parse staged info using git-diff-index(1), then parse unstaged
3250 * info using git-diff-files(1), and finally untracked files using
3251 * git-ls-files(1). */
3253 status_open(struct view *view)
3255 struct stat statbuf;
3256 char exclude[SIZEOF_STR];
3257 char cmd[SIZEOF_STR];
3258 unsigned long prev_lineno = view->lineno;
3261 for (i = 0; i < view->lines; i++)
3262 free(view->line[i].data);
3264 view->lines = view->line_size = view->lineno = 0;
3267 if (!realloc_lines(view, view->line_size + 6))
3270 if (!string_format(exclude, "%s/info/exclude", opt_git_dir))
3273 string_copy(cmd, STATUS_LIST_OTHER_CMD);
3275 if (stat(exclude, &statbuf) >= 0) {
3276 size_t cmdsize = strlen(cmd);
3278 if (!string_format_from(cmd, &cmdsize, " %s", "--exclude-from=") ||
3279 sq_quote(cmd, cmdsize, exclude) >= sizeof(cmd))
3283 if (!status_run(view, STATUS_DIFF_INDEX_CMD, TRUE, LINE_STAT_STAGED) ||
3284 !status_run(view, STATUS_DIFF_FILES_CMD, TRUE, LINE_STAT_UNSTAGED) ||
3285 !status_run(view, cmd, FALSE, LINE_STAT_UNTRACKED))
3288 /* If all went well restore the previous line number to stay in
3290 if (prev_lineno < view->lines)
3291 view->lineno = prev_lineno;
3293 view->lineno = view->lines - 1;
3299 status_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
3301 struct status *status = line->data;
3303 wmove(view->win, lineno, 0);
3306 wattrset(view->win, get_line_attr(LINE_CURSOR));
3307 wchgat(view->win, -1, 0, LINE_CURSOR, NULL);
3309 } else if (!status && line->type != LINE_STAT_NONE) {
3310 wattrset(view->win, get_line_attr(LINE_STAT_SECTION));
3311 wchgat(view->win, -1, 0, LINE_STAT_SECTION, NULL);
3314 wattrset(view->win, get_line_attr(line->type));
3320 switch (line->type) {
3321 case LINE_STAT_STAGED:
3322 text = "Changes to be committed:";
3325 case LINE_STAT_UNSTAGED:
3326 text = "Changed but not updated:";
3329 case LINE_STAT_UNTRACKED:
3330 text = "Untracked files:";
3333 case LINE_STAT_NONE:
3334 text = " (no files)";
3341 waddstr(view->win, text);
3345 waddch(view->win, status->status);
3347 wattrset(view->win, A_NORMAL);
3348 wmove(view->win, lineno, 4);
3349 waddstr(view->win, status->name);
3355 status_enter(struct view *view, struct line *line)
3357 struct status *status = line->data;
3358 char path[SIZEOF_STR] = "";
3362 if (line->type == LINE_STAT_NONE ||
3363 (!status && line[1].type == LINE_STAT_NONE)) {
3364 report("No file to diff");
3368 if (status && sq_quote(path, 0, status->name) >= sizeof(path))
3372 line->type != LINE_STAT_UNTRACKED &&
3373 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
3376 switch (line->type) {
3377 case LINE_STAT_STAGED:
3378 if (!string_format_from(opt_cmd, &cmdsize, STATUS_DIFF_SHOW_CMD,
3382 info = "Staged changes to %s";
3384 info = "Staged changes";
3387 case LINE_STAT_UNSTAGED:
3388 if (!string_format_from(opt_cmd, &cmdsize, STATUS_DIFF_SHOW_CMD,
3392 info = "Unstaged changes to %s";
3394 info = "Unstaged changes";
3397 case LINE_STAT_UNTRACKED:
3403 report("No file to show");
3407 opt_pipe = fopen(status->name, "r");
3408 info = "Untracked file %s";
3415 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | OPEN_SPLIT);
3416 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
3418 stage_status = *status;
3420 memset(&stage_status, 0, sizeof(stage_status));
3423 stage_line_type = line->type;
3424 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.name);
3432 status_update_file(struct view *view, struct status *status, enum line_type type)
3434 char cmd[SIZEOF_STR];
3435 char buf[SIZEOF_STR];
3442 type != LINE_STAT_UNTRACKED &&
3443 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
3447 case LINE_STAT_STAGED:
3448 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
3454 string_add(cmd, cmdsize, "git update-index -z --index-info");
3457 case LINE_STAT_UNSTAGED:
3458 case LINE_STAT_UNTRACKED:
3459 if (!string_format_from(buf, &bufsize, "%s%c", status->name, 0))
3462 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
3469 pipe = popen(cmd, "w");
3473 while (!ferror(pipe) && written < bufsize) {
3474 written += fwrite(buf + written, 1, bufsize - written, pipe);
3479 if (written != bufsize)
3486 status_update(struct view *view)
3488 struct line *line = &view->line[view->lineno];
3490 assert(view->lines);
3493 while (++line < view->line + view->lines && line->data) {
3494 if (!status_update_file(view, line->data, line->type))
3495 report("Failed to update file status");
3498 if (!line[-1].data) {
3499 report("Nothing to update");
3503 } else if (!status_update_file(view, line->data, line->type)) {
3504 report("Failed to update file status");
3509 status_request(struct view *view, enum request request, struct line *line)
3511 struct status *status = line->data;
3514 case REQ_STATUS_UPDATE:
3515 status_update(view);
3518 case REQ_STATUS_MERGE:
3519 open_mergetool(status->name);
3526 open_editor(status->status != '?', status->name);
3530 /* After returning the status view has been split to
3531 * show the stage view. No further reloading is
3533 status_enter(view, line);
3537 /* Simply reload the view. */
3544 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
3550 status_select(struct view *view, struct line *line)
3552 struct status *status = line->data;
3553 char file[SIZEOF_STR] = "all files";
3557 if (status && !string_format(file, "'%s'", status->name))
3560 if (!status && line[1].type == LINE_STAT_NONE)
3563 switch (line->type) {
3564 case LINE_STAT_STAGED:
3565 text = "Press %s to unstage %s for commit";
3568 case LINE_STAT_UNSTAGED:
3569 text = "Press %s to stage %s for commit";
3572 case LINE_STAT_UNTRACKED:
3573 text = "Press %s to stage %s for addition";
3576 case LINE_STAT_NONE:
3577 text = "Nothing to update";
3584 if (status && status->status == 'U') {
3585 text = "Press %s to resolve conflict in %s";
3586 key = get_key(REQ_STATUS_MERGE);
3589 key = get_key(REQ_STATUS_UPDATE);
3592 string_format(view->ref, text, key, file);
3596 status_grep(struct view *view, struct line *line)
3598 struct status *status = line->data;
3599 enum { S_STATUS, S_NAME, S_END } state;
3606 for (state = S_STATUS; state < S_END; state++) {
3610 case S_NAME: text = status->name; break;
3612 buf[0] = status->status;
3620 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3627 static struct view_ops status_ops = {
3639 stage_diff_line(FILE *pipe, struct line *line)
3641 char *buf = line->data;
3642 size_t bufsize = strlen(buf);
3645 while (!ferror(pipe) && written < bufsize) {
3646 written += fwrite(buf + written, 1, bufsize - written, pipe);
3651 return written == bufsize;
3654 static struct line *
3655 stage_diff_hdr(struct view *view, struct line *line)
3657 int diff_hdr_dir = line->type == LINE_DIFF_CHUNK ? -1 : 1;
3658 struct line *diff_hdr;
3660 if (line->type == LINE_DIFF_CHUNK)
3661 diff_hdr = line - 1;
3663 diff_hdr = view->line + 1;
3665 while (diff_hdr > view->line && diff_hdr < view->line + view->lines) {
3666 if (diff_hdr->type == LINE_DIFF_HEADER)
3669 diff_hdr += diff_hdr_dir;
3676 stage_update_chunk(struct view *view, struct line *line)
3678 char cmd[SIZEOF_STR];
3680 struct line *diff_hdr, *diff_chunk, *diff_end;
3683 diff_hdr = stage_diff_hdr(view, line);
3688 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
3691 if (!string_format_from(cmd, &cmdsize,
3692 "git apply --cached %s - && "
3693 "git update-index -q --unmerged --refresh 2>/dev/null",
3694 stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
3697 pipe = popen(cmd, "w");
3701 diff_end = view->line + view->lines;
3702 if (line->type != LINE_DIFF_CHUNK) {
3703 diff_chunk = diff_hdr;
3706 for (diff_chunk = line + 1; diff_chunk < diff_end; diff_chunk++)
3707 if (diff_chunk->type == LINE_DIFF_CHUNK ||
3708 diff_chunk->type == LINE_DIFF_HEADER)
3709 diff_end = diff_chunk;
3713 while (diff_hdr->type != LINE_DIFF_CHUNK) {
3714 switch (diff_hdr->type) {
3715 case LINE_DIFF_HEADER:
3716 case LINE_DIFF_INDEX:
3726 if (!stage_diff_line(pipe, diff_hdr++)) {
3733 while (diff_chunk < diff_end && stage_diff_line(pipe, diff_chunk))
3738 if (diff_chunk != diff_end)
3745 stage_update(struct view *view, struct line *line)
3747 if (stage_line_type != LINE_STAT_UNTRACKED &&
3748 (line->type == LINE_DIFF_CHUNK || !stage_status.status)) {
3749 if (!stage_update_chunk(view, line)) {
3750 report("Failed to apply chunk");
3754 } else if (!status_update_file(view, &stage_status, stage_line_type)) {
3755 report("Failed to update file");
3759 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
3761 view = VIEW(REQ_VIEW_STATUS);
3762 if (view_is_displayed(view))
3763 status_enter(view, &view->line[view->lineno]);
3767 stage_request(struct view *view, enum request request, struct line *line)
3770 case REQ_STATUS_UPDATE:
3771 stage_update(view, line);
3775 if (!stage_status.name[0])
3778 open_editor(stage_status.status != '?', stage_status.name);
3782 pager_request(view, request, line);
3792 static struct view_ops stage_ops = {
3808 char id[SIZEOF_REV]; /* SHA1 ID. */
3809 char title[128]; /* First line of the commit message. */
3810 char author[75]; /* Author of the commit. */
3811 struct tm time; /* Date from the author ident. */
3812 struct ref **refs; /* Repository references. */
3813 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
3814 size_t graph_size; /* The width of the graph array. */
3817 /* Size of rev graph with no "padding" columns */
3818 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
3821 struct rev_graph *prev, *next, *parents;
3822 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
3824 struct commit *commit;
3828 /* Parents of the commit being visualized. */
3829 static struct rev_graph graph_parents[4];
3831 /* The current stack of revisions on the graph. */
3832 static struct rev_graph graph_stacks[4] = {
3833 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
3834 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
3835 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
3836 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
3840 graph_parent_is_merge(struct rev_graph *graph)
3842 return graph->parents->size > 1;
3846 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
3848 struct commit *commit = graph->commit;
3850 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
3851 commit->graph[commit->graph_size++] = symbol;
3855 done_rev_graph(struct rev_graph *graph)
3857 if (graph_parent_is_merge(graph) &&
3858 graph->pos < graph->size - 1 &&
3859 graph->next->size == graph->size + graph->parents->size - 1) {
3860 size_t i = graph->pos + graph->parents->size - 1;
3862 graph->commit->graph_size = i * 2;
3863 while (i < graph->next->size - 1) {
3864 append_to_rev_graph(graph, ' ');
3865 append_to_rev_graph(graph, '\\');
3870 graph->size = graph->pos = 0;
3871 graph->commit = NULL;
3872 memset(graph->parents, 0, sizeof(*graph->parents));
3876 push_rev_graph(struct rev_graph *graph, char *parent)
3880 /* "Collapse" duplicate parents lines.
3882 * FIXME: This needs to also update update the drawn graph but
3883 * for now it just serves as a method for pruning graph lines. */
3884 for (i = 0; i < graph->size; i++)
3885 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
3888 if (graph->size < SIZEOF_REVITEMS) {
3889 string_copy_rev(graph->rev[graph->size++], parent);
3894 get_rev_graph_symbol(struct rev_graph *graph)
3898 if (graph->parents->size == 0)
3899 symbol = REVGRAPH_INIT;
3900 else if (graph_parent_is_merge(graph))
3901 symbol = REVGRAPH_MERGE;
3902 else if (graph->pos >= graph->size)
3903 symbol = REVGRAPH_BRANCH;
3905 symbol = REVGRAPH_COMMIT;
3911 draw_rev_graph(struct rev_graph *graph)
3914 chtype separator, line;
3916 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
3917 static struct rev_filler fillers[] = {
3918 { ' ', REVGRAPH_LINE },
3923 chtype symbol = get_rev_graph_symbol(graph);
3924 struct rev_filler *filler;
3927 filler = &fillers[DEFAULT];
3929 for (i = 0; i < graph->pos; i++) {
3930 append_to_rev_graph(graph, filler->line);
3931 if (graph_parent_is_merge(graph->prev) &&
3932 graph->prev->pos == i)
3933 filler = &fillers[RSHARP];
3935 append_to_rev_graph(graph, filler->separator);
3938 /* Place the symbol for this revision. */
3939 append_to_rev_graph(graph, symbol);
3941 if (graph->prev->size > graph->size)
3942 filler = &fillers[RDIAG];
3944 filler = &fillers[DEFAULT];
3948 for (; i < graph->size; i++) {
3949 append_to_rev_graph(graph, filler->separator);
3950 append_to_rev_graph(graph, filler->line);
3951 if (graph_parent_is_merge(graph->prev) &&
3952 i < graph->prev->pos + graph->parents->size)
3953 filler = &fillers[RSHARP];
3954 if (graph->prev->size > graph->size)
3955 filler = &fillers[LDIAG];
3958 if (graph->prev->size > graph->size) {
3959 append_to_rev_graph(graph, filler->separator);
3960 if (filler->line != ' ')
3961 append_to_rev_graph(graph, filler->line);
3965 /* Prepare the next rev graph */
3967 prepare_rev_graph(struct rev_graph *graph)
3971 /* First, traverse all lines of revisions up to the active one. */
3972 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
3973 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
3976 push_rev_graph(graph->next, graph->rev[graph->pos]);
3979 /* Interleave the new revision parent(s). */
3980 for (i = 0; i < graph->parents->size; i++)
3981 push_rev_graph(graph->next, graph->parents->rev[i]);
3983 /* Lastly, put any remaining revisions. */
3984 for (i = graph->pos + 1; i < graph->size; i++)
3985 push_rev_graph(graph->next, graph->rev[i]);
3989 update_rev_graph(struct rev_graph *graph)
3991 /* If this is the finalizing update ... */
3993 prepare_rev_graph(graph);
3995 /* Graph visualization needs a one rev look-ahead,
3996 * so the first update doesn't visualize anything. */
3997 if (!graph->prev->commit)
4000 draw_rev_graph(graph->prev);
4001 done_rev_graph(graph->prev->prev);
4010 main_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
4012 char buf[DATE_COLS + 1];
4013 struct commit *commit = line->data;
4014 enum line_type type;
4020 if (!*commit->author)
4023 wmove(view->win, lineno, col);
4027 wattrset(view->win, get_line_attr(type));
4028 wchgat(view->win, -1, 0, type, NULL);
4031 type = LINE_MAIN_COMMIT;
4032 wattrset(view->win, get_line_attr(LINE_MAIN_DATE));
4035 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time);
4036 waddnstr(view->win, buf, timelen);
4037 waddstr(view->win, " ");
4040 wmove(view->win, lineno, col);
4041 if (type != LINE_CURSOR)
4042 wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR));
4045 authorlen = utf8_length(commit->author, AUTHOR_COLS - 2, &col, &trimmed);
4047 authorlen = strlen(commit->author);
4048 if (authorlen > AUTHOR_COLS - 2) {
4049 authorlen = AUTHOR_COLS - 2;
4055 waddnstr(view->win, commit->author, authorlen);
4056 if (type != LINE_CURSOR)
4057 wattrset(view->win, get_line_attr(LINE_MAIN_DELIM));
4058 waddch(view->win, '~');
4060 waddstr(view->win, commit->author);
4064 if (type != LINE_CURSOR)
4065 wattrset(view->win, A_NORMAL);
4067 if (opt_rev_graph && commit->graph_size) {
4070 wmove(view->win, lineno, col);
4071 /* Using waddch() instead of waddnstr() ensures that
4072 * they'll be rendered correctly for the cursor line. */
4073 for (i = 0; i < commit->graph_size; i++)
4074 waddch(view->win, commit->graph[i]);
4076 waddch(view->win, ' ');
4077 col += commit->graph_size + 1;
4080 wmove(view->win, lineno, col);
4086 if (type == LINE_CURSOR)
4088 else if (commit->refs[i]->tag)
4089 wattrset(view->win, get_line_attr(LINE_MAIN_TAG));
4090 else if (commit->refs[i]->remote)
4091 wattrset(view->win, get_line_attr(LINE_MAIN_REMOTE));
4093 wattrset(view->win, get_line_attr(LINE_MAIN_REF));
4094 waddstr(view->win, "[");
4095 waddstr(view->win, commit->refs[i]->name);
4096 waddstr(view->win, "]");
4097 if (type != LINE_CURSOR)
4098 wattrset(view->win, A_NORMAL);
4099 waddstr(view->win, " ");
4100 col += strlen(commit->refs[i]->name) + STRING_SIZE("[] ");
4101 } while (commit->refs[i++]->next);
4104 if (type != LINE_CURSOR)
4105 wattrset(view->win, get_line_attr(type));
4108 int titlelen = strlen(commit->title);
4110 if (col + titlelen > view->width)
4111 titlelen = view->width - col;
4113 waddnstr(view->win, commit->title, titlelen);
4119 /* Reads git log --pretty=raw output and parses it into the commit struct. */
4121 main_read(struct view *view, char *line)
4123 static struct rev_graph *graph = graph_stacks;
4124 enum line_type type;
4125 struct commit *commit;
4128 update_rev_graph(graph);
4132 type = get_line_type(line);
4133 if (type == LINE_COMMIT) {
4134 commit = calloc(1, sizeof(struct commit));
4138 string_copy_rev(commit->id, line + STRING_SIZE("commit "));
4139 commit->refs = get_refs(commit->id);
4140 graph->commit = commit;
4141 add_line_data(view, commit, LINE_MAIN_COMMIT);
4147 commit = view->line[view->lines - 1].data;
4151 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
4156 /* Parse author lines where the name may be empty:
4157 * author <email@address.tld> 1138474660 +0100
4159 char *ident = line + STRING_SIZE("author ");
4160 char *nameend = strchr(ident, '<');
4161 char *emailend = strchr(ident, '>');
4163 if (!nameend || !emailend)
4166 update_rev_graph(graph);
4167 graph = graph->next;
4169 *nameend = *emailend = 0;
4170 ident = chomp_string(ident);
4172 ident = chomp_string(nameend + 1);
4177 string_ncopy(commit->author, ident, strlen(ident));
4179 /* Parse epoch and timezone */
4180 if (emailend[1] == ' ') {
4181 char *secs = emailend + 2;
4182 char *zone = strchr(secs, ' ');
4183 time_t time = (time_t) atol(secs);
4185 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
4189 tz = ('0' - zone[1]) * 60 * 60 * 10;
4190 tz += ('0' - zone[2]) * 60 * 60;
4191 tz += ('0' - zone[3]) * 60;
4192 tz += ('0' - zone[4]) * 60;
4200 gmtime_r(&time, &commit->time);
4205 /* Fill in the commit title if it has not already been set. */
4206 if (commit->title[0])
4209 /* Require titles to start with a non-space character at the
4210 * offset used by git log. */
4211 if (strncmp(line, " ", 4))
4214 /* Well, if the title starts with a whitespace character,
4215 * try to be forgiving. Otherwise we end up with no title. */
4216 while (isspace(*line))
4220 /* FIXME: More graceful handling of titles; append "..." to
4221 * shortened titles, etc. */
4223 string_ncopy(commit->title, line, strlen(line));
4230 cherry_pick_commit(struct commit *commit)
4232 char cmd[SIZEOF_STR];
4233 char *cherry_pick = getenv("TIG_CHERRY_PICK");
4236 cherry_pick = "git cherry-pick";
4238 if (string_format(cmd, "%s %s", cherry_pick, commit->id)) {
4239 open_external_viewer(cmd);
4244 main_request(struct view *view, enum request request, struct line *line)
4246 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4248 if (request == REQ_ENTER)
4249 open_view(view, REQ_VIEW_DIFF, flags);
4250 else if (request == REQ_CHERRY_PICK)
4251 cherry_pick_commit(line->data);
4259 main_grep(struct view *view, struct line *line)
4261 struct commit *commit = line->data;
4262 enum { S_TITLE, S_AUTHOR, S_DATE, S_END } state;
4263 char buf[DATE_COLS + 1];
4266 for (state = S_TITLE; state < S_END; state++) {
4270 case S_TITLE: text = commit->title; break;
4271 case S_AUTHOR: text = commit->author; break;
4273 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
4282 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4290 main_select(struct view *view, struct line *line)
4292 struct commit *commit = line->data;
4294 string_copy_rev(view->ref, commit->id);
4295 string_copy_rev(ref_commit, view->ref);
4298 static struct view_ops main_ops = {
4310 * Unicode / UTF-8 handling
4312 * NOTE: Much of the following code for dealing with unicode is derived from
4313 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
4314 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
4317 /* I've (over)annotated a lot of code snippets because I am not entirely
4318 * confident that the approach taken by this small UTF-8 interface is correct.
4322 unicode_width(unsigned long c)
4325 (c <= 0x115f /* Hangul Jamo */
4328 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
4330 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
4331 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
4332 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
4333 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
4334 || (c >= 0xffe0 && c <= 0xffe6)
4335 || (c >= 0x20000 && c <= 0x2fffd)
4336 || (c >= 0x30000 && c <= 0x3fffd)))
4342 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
4343 * Illegal bytes are set one. */
4344 static const unsigned char utf8_bytes[256] = {
4345 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,
4346 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,
4347 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,
4348 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,
4349 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,
4350 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,
4351 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,
4352 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,
4355 /* Decode UTF-8 multi-byte representation into a unicode character. */
4356 static inline unsigned long
4357 utf8_to_unicode(const char *string, size_t length)
4359 unsigned long unicode;
4363 unicode = string[0];
4366 unicode = (string[0] & 0x1f) << 6;
4367 unicode += (string[1] & 0x3f);
4370 unicode = (string[0] & 0x0f) << 12;
4371 unicode += ((string[1] & 0x3f) << 6);
4372 unicode += (string[2] & 0x3f);
4375 unicode = (string[0] & 0x0f) << 18;
4376 unicode += ((string[1] & 0x3f) << 12);
4377 unicode += ((string[2] & 0x3f) << 6);
4378 unicode += (string[3] & 0x3f);
4381 unicode = (string[0] & 0x0f) << 24;
4382 unicode += ((string[1] & 0x3f) << 18);
4383 unicode += ((string[2] & 0x3f) << 12);
4384 unicode += ((string[3] & 0x3f) << 6);
4385 unicode += (string[4] & 0x3f);
4388 unicode = (string[0] & 0x01) << 30;
4389 unicode += ((string[1] & 0x3f) << 24);
4390 unicode += ((string[2] & 0x3f) << 18);
4391 unicode += ((string[3] & 0x3f) << 12);
4392 unicode += ((string[4] & 0x3f) << 6);
4393 unicode += (string[5] & 0x3f);
4396 die("Invalid unicode length");
4399 /* Invalid characters could return the special 0xfffd value but NUL
4400 * should be just as good. */
4401 return unicode > 0xffff ? 0 : unicode;
4404 /* Calculates how much of string can be shown within the given maximum width
4405 * and sets trimmed parameter to non-zero value if all of string could not be
4408 * Additionally, adds to coloffset how many many columns to move to align with
4409 * the expected position. Takes into account how multi-byte and double-width
4410 * characters will effect the cursor position.
4412 * Returns the number of bytes to output from string to satisfy max_width. */
4414 utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed)
4416 const char *start = string;
4417 const char *end = strchr(string, '\0');
4423 while (string < end) {
4424 int c = *(unsigned char *) string;
4425 unsigned char bytes = utf8_bytes[c];
4427 unsigned long unicode;
4429 if (string + bytes > end)
4432 /* Change representation to figure out whether
4433 * it is a single- or double-width character. */
4435 unicode = utf8_to_unicode(string, bytes);
4436 /* FIXME: Graceful handling of invalid unicode character. */
4440 ucwidth = unicode_width(unicode);
4442 if (width > max_width) {
4447 /* The column offset collects the differences between the
4448 * number of bytes encoding a character and the number of
4449 * columns will be used for rendering said character.
4451 * So if some character A is encoded in 2 bytes, but will be
4452 * represented on the screen using only 1 byte this will and up
4453 * adding 1 to the multi-byte column offset.
4455 * Assumes that no double-width character can be encoding in
4456 * less than two bytes. */
4457 if (bytes > ucwidth)
4458 mbwidth += bytes - ucwidth;
4463 *coloffset += mbwidth;
4465 return string - start;
4473 /* Whether or not the curses interface has been initialized. */
4474 static bool cursed = FALSE;
4476 /* The status window is used for polling keystrokes. */
4477 static WINDOW *status_win;
4479 static bool status_empty = TRUE;
4481 /* Update status and title window. */
4483 report(const char *msg, ...)
4485 struct view *view = display[current_view];
4491 char buf[SIZEOF_STR];
4494 va_start(args, msg);
4495 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
4496 buf[sizeof(buf) - 1] = 0;
4497 buf[sizeof(buf) - 2] = '.';
4498 buf[sizeof(buf) - 3] = '.';
4499 buf[sizeof(buf) - 4] = '.';
4505 if (!status_empty || *msg) {
4508 va_start(args, msg);
4510 wmove(status_win, 0, 0);
4512 vwprintw(status_win, msg, args);
4513 status_empty = FALSE;
4515 status_empty = TRUE;
4517 wclrtoeol(status_win);
4518 wrefresh(status_win);
4523 update_view_title(view);
4524 update_display_cursor(view);
4527 /* Controls when nodelay should be in effect when polling user input. */
4529 set_nonblocking_input(bool loading)
4531 static unsigned int loading_views;
4533 if ((loading == FALSE && loading_views-- == 1) ||
4534 (loading == TRUE && loading_views++ == 0))
4535 nodelay(status_win, loading);
4543 /* Initialize the curses library */
4544 if (isatty(STDIN_FILENO)) {
4545 cursed = !!initscr();
4547 /* Leave stdin and stdout alone when acting as a pager. */
4548 FILE *io = fopen("/dev/tty", "r+");
4551 die("Failed to open /dev/tty");
4552 cursed = !!newterm(NULL, io, io);
4556 die("Failed to initialize curses");
4558 nonl(); /* Tell curses not to do NL->CR/NL on output */
4559 cbreak(); /* Take input chars one at a time, no wait for \n */
4560 noecho(); /* Don't echo input */
4561 leaveok(stdscr, TRUE);
4566 getmaxyx(stdscr, y, x);
4567 status_win = newwin(1, 0, y - 1, 0);
4569 die("Failed to create status window");
4571 /* Enable keyboard mapping */
4572 keypad(status_win, TRUE);
4573 wbkgdset(status_win, get_line_attr(LINE_STATUS));
4577 read_prompt(const char *prompt)
4579 enum { READING, STOP, CANCEL } status = READING;
4580 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
4583 while (status == READING) {
4589 foreach_view (view, i)
4594 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
4595 wclrtoeol(status_win);
4597 /* Refresh, accept single keystroke of input */
4598 key = wgetch(status_win);
4603 status = pos ? STOP : CANCEL;
4621 if (pos >= sizeof(buf)) {
4622 report("Input string too long");
4627 buf[pos++] = (char) key;
4631 /* Clear the status window */
4632 status_empty = FALSE;
4635 if (status == CANCEL)
4644 * Repository references
4647 static struct ref *refs;
4648 static size_t refs_size;
4650 /* Id <-> ref store */
4651 static struct ref ***id_refs;
4652 static size_t id_refs_size;
4654 static struct ref **
4657 struct ref ***tmp_id_refs;
4658 struct ref **ref_list = NULL;
4659 size_t ref_list_size = 0;
4662 for (i = 0; i < id_refs_size; i++)
4663 if (!strcmp(id, id_refs[i][0]->id))
4666 tmp_id_refs = realloc(id_refs, (id_refs_size + 1) * sizeof(*id_refs));
4670 id_refs = tmp_id_refs;
4672 for (i = 0; i < refs_size; i++) {
4675 if (strcmp(id, refs[i].id))
4678 tmp = realloc(ref_list, (ref_list_size + 1) * sizeof(*ref_list));
4686 if (ref_list_size > 0)
4687 ref_list[ref_list_size - 1]->next = 1;
4688 ref_list[ref_list_size] = &refs[i];
4690 /* XXX: The properties of the commit chains ensures that we can
4691 * safely modify the shared ref. The repo references will
4692 * always be similar for the same id. */
4693 ref_list[ref_list_size]->next = 0;
4698 id_refs[id_refs_size++] = ref_list;
4704 read_ref(char *id, size_t idlen, char *name, size_t namelen)
4708 bool remote = FALSE;
4710 if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) {
4711 /* Commits referenced by tags has "^{}" appended. */
4712 if (name[namelen - 1] != '}')
4715 while (namelen > 0 && name[namelen] != '^')
4719 namelen -= STRING_SIZE("refs/tags/");
4720 name += STRING_SIZE("refs/tags/");
4722 } else if (!strncmp(name, "refs/remotes/", STRING_SIZE("refs/remotes/"))) {
4724 namelen -= STRING_SIZE("refs/remotes/");
4725 name += STRING_SIZE("refs/remotes/");
4727 } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
4728 namelen -= STRING_SIZE("refs/heads/");
4729 name += STRING_SIZE("refs/heads/");
4731 } else if (!strcmp(name, "HEAD")) {
4735 refs = realloc(refs, sizeof(*refs) * (refs_size + 1));
4739 ref = &refs[refs_size++];
4740 ref->name = malloc(namelen + 1);
4744 strncpy(ref->name, name, namelen);
4745 ref->name[namelen] = 0;
4747 ref->remote = remote;
4748 string_copy_rev(ref->id, id);
4756 const char *cmd_env = getenv("TIG_LS_REMOTE");
4757 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
4759 return read_properties(popen(cmd, "r"), "\t", read_ref);
4763 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
4765 if (!strcmp(name, "i18n.commitencoding"))
4766 string_ncopy(opt_encoding, value, valuelen);
4768 if (!strcmp(name, "core.editor"))
4769 string_ncopy(opt_editor, value, valuelen);
4775 load_repo_config(void)
4777 return read_properties(popen(GIT_CONFIG " --list", "r"),
4778 "=", read_repo_config_option);
4782 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
4784 if (!opt_git_dir[0]) {
4785 string_ncopy(opt_git_dir, name, namelen);
4787 } else if (opt_is_inside_work_tree == -1) {
4788 /* This can be 3 different values depending on the
4789 * version of git being used. If git-rev-parse does not
4790 * understand --is-inside-work-tree it will simply echo
4791 * the option else either "true" or "false" is printed.
4792 * Default to true for the unknown case. */
4793 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
4796 string_ncopy(opt_cdup, name, namelen);
4802 /* XXX: The line outputted by "--show-cdup" can be empty so the option
4803 * must be the last one! */
4805 load_repo_info(void)
4807 return read_properties(popen("git rev-parse --git-dir --is-inside-work-tree --show-cdup 2>/dev/null", "r"),
4808 "=", read_repo_info);
4812 read_properties(FILE *pipe, const char *separators,
4813 int (*read_property)(char *, size_t, char *, size_t))
4815 char buffer[BUFSIZ];
4822 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
4827 name = chomp_string(name);
4828 namelen = strcspn(name, separators);
4830 if (name[namelen]) {
4832 value = chomp_string(name + namelen + 1);
4833 valuelen = strlen(value);
4840 state = read_property(name, namelen, value, valuelen);
4843 if (state != ERR && ferror(pipe))
4856 static void __NORETURN
4859 /* XXX: Restore tty modes and let the OS cleanup the rest! */
4865 static void __NORETURN
4866 die(const char *err, ...)
4872 va_start(args, err);
4873 fputs("tig: ", stderr);
4874 vfprintf(stderr, err, args);
4875 fputs("\n", stderr);
4882 main(int argc, char *argv[])
4885 enum request request;
4888 signal(SIGINT, quit);
4890 if (setlocale(LC_ALL, "")) {
4891 char *codeset = nl_langinfo(CODESET);
4893 string_ncopy(opt_codeset, codeset, strlen(codeset));
4896 if (load_repo_info() == ERR)
4897 die("Failed to load repo info.");
4899 if (load_options() == ERR)
4900 die("Failed to load user config.");
4902 /* Load the repo config file so options can be overwritten from
4903 * the command line. */
4904 if (load_repo_config() == ERR)
4905 die("Failed to load repo config.");
4907 if (!parse_options(argc, argv))
4910 /* Require a git repository unless when running in pager mode. */
4911 if (!opt_git_dir[0])
4912 die("Not a git repository");
4914 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
4915 opt_iconv = iconv_open(opt_codeset, opt_encoding);
4916 if (opt_iconv == ICONV_NONE)
4917 die("Failed to initialize character set conversion");
4920 if (load_refs() == ERR)
4921 die("Failed to load refs.");
4923 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
4924 view->cmd_env = getenv(view->cmd_env);
4926 request = opt_request;
4930 while (view_driver(display[current_view], request)) {
4934 foreach_view (view, i)
4937 /* Refresh, accept single keystroke of input */
4938 key = wgetch(status_win);
4940 /* wgetch() with nodelay() enabled returns ERR when there's no
4947 request = get_keybinding(display[current_view]->keymap, key);
4949 /* Some low-level request handling. This keeps access to
4950 * status_win restricted. */
4954 char *cmd = read_prompt(":");
4956 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
4957 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
4958 opt_request = REQ_VIEW_DIFF;
4960 opt_request = REQ_VIEW_PAGER;
4969 case REQ_SEARCH_BACK:
4971 const char *prompt = request == REQ_SEARCH
4973 char *search = read_prompt(prompt);
4976 string_ncopy(opt_search, search, strlen(search));
4981 case REQ_SCREEN_RESIZE:
4985 getmaxyx(stdscr, height, width);
4987 /* Resize the status view and let the view driver take
4988 * care of resizing the displayed views. */
4989 wresize(status_win, 1, width);
4990 mvwin(status_win, height - 1, 0);
4991 wrefresh(status_win);