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 --no-color --root --patch-with-stat --find-copies-harder -B -C %s 2>/dev/null"
110 #define TIG_LOG_CMD \
111 "git log --no-color --cc --stat -n100 %s 2>/dev/null"
113 #define TIG_MAIN_CMD \
114 "git log --no-color --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_(NONE, "Do nothing")
359 /* User action requests. */
361 #define REQ_GROUP(help)
362 #define REQ_(req, help) REQ_##req
364 /* Offset all requests to avoid conflicts with ncurses getch values. */
365 REQ_OFFSET = KEY_MAX + 1,
372 struct request_info {
373 enum request request;
379 static struct request_info req_info[] = {
380 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
381 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
388 get_request(const char *name)
390 int namelen = strlen(name);
393 for (i = 0; i < ARRAY_SIZE(req_info); i++)
394 if (req_info[i].namelen == namelen &&
395 !string_enum_compare(req_info[i].name, name, namelen))
396 return req_info[i].request;
406 static const char usage[] =
407 "tig " TIG_VERSION " (" __DATE__ ")\n"
409 "Usage: tig [options]\n"
410 " or: tig [options] [--] [git log options]\n"
411 " or: tig [options] log [git log options]\n"
412 " or: tig [options] diff [git diff options]\n"
413 " or: tig [options] show [git show options]\n"
414 " or: tig [options] < [git command output]\n"
417 " -l Start up in log view\n"
418 " -d Start up in diff view\n"
419 " -S Start up in status view\n"
420 " -n[I], --line-number[=I] Show line numbers with given interval\n"
421 " -b[N], --tab-size[=N] Set number of spaces for tab expansion\n"
422 " -- Mark end of tig options\n"
423 " -v, --version Show version and exit\n"
424 " -h, --help Show help message and exit\n";
426 /* Option and state variables. */
427 static bool opt_line_number = FALSE;
428 static bool opt_rev_graph = FALSE;
429 static int opt_num_interval = NUMBER_INTERVAL;
430 static int opt_tab_size = TABSIZE;
431 static enum request opt_request = REQ_VIEW_MAIN;
432 static char opt_cmd[SIZEOF_STR] = "";
433 static char opt_path[SIZEOF_STR] = "";
434 static FILE *opt_pipe = NULL;
435 static char opt_encoding[20] = "UTF-8";
436 static bool opt_utf8 = TRUE;
437 static char opt_codeset[20] = "UTF-8";
438 static iconv_t opt_iconv = ICONV_NONE;
439 static char opt_search[SIZEOF_STR] = "";
440 static char opt_cdup[SIZEOF_STR] = "";
441 static char opt_git_dir[SIZEOF_STR] = "";
442 static char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
443 static char opt_editor[SIZEOF_STR] = "";
451 check_option(char *opt, char short_name, char *name, enum option_type type, ...)
461 int namelen = strlen(name);
465 if (strncmp(opt, name, namelen))
468 if (opt[namelen] == '=')
469 value = opt + namelen + 1;
472 if (!short_name || opt[1] != short_name)
477 va_start(args, type);
478 if (type == OPT_INT) {
479 number = va_arg(args, int *);
481 *number = atoi(value);
488 /* Returns the index of log or diff command or -1 to exit. */
490 parse_options(int argc, char *argv[])
494 for (i = 1; i < argc; i++) {
497 if (!strcmp(opt, "log") ||
498 !strcmp(opt, "diff") ||
499 !strcmp(opt, "show")) {
500 opt_request = opt[0] == 'l'
501 ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
505 if (opt[0] && opt[0] != '-')
508 if (!strcmp(opt, "--")) {
513 if (check_option(opt, 'v', "version", OPT_NONE)) {
514 printf("tig version %s\n", TIG_VERSION);
518 if (check_option(opt, 'h', "help", OPT_NONE)) {
523 if (!strcmp(opt, "-S")) {
524 opt_request = REQ_VIEW_STATUS;
528 if (!strcmp(opt, "-l")) {
529 opt_request = REQ_VIEW_LOG;
533 if (!strcmp(opt, "-d")) {
534 opt_request = REQ_VIEW_DIFF;
538 if (check_option(opt, 'n', "line-number", OPT_INT, &opt_num_interval)) {
539 opt_line_number = TRUE;
543 if (check_option(opt, 'b', "tab-size", OPT_INT, &opt_tab_size)) {
544 opt_tab_size = MIN(opt_tab_size, TABSIZE);
548 die("unknown option '%s'\n\n%s", opt, usage);
551 if (!isatty(STDIN_FILENO)) {
552 opt_request = REQ_VIEW_PAGER;
555 } else if (i < argc) {
558 if (opt_request == REQ_VIEW_MAIN)
559 /* XXX: This is vulnerable to the user overriding
560 * options required for the main view parser. */
561 string_copy(opt_cmd, "git log --no-color --pretty=raw");
563 string_copy(opt_cmd, "git");
564 buf_size = strlen(opt_cmd);
566 while (buf_size < sizeof(opt_cmd) && i < argc) {
567 opt_cmd[buf_size++] = ' ';
568 buf_size = sq_quote(opt_cmd, buf_size, argv[i++]);
571 if (buf_size >= sizeof(opt_cmd))
572 die("command too long");
574 opt_cmd[buf_size] = 0;
577 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
585 * Line-oriented content detection.
589 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
590 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
591 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
592 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
593 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
594 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
595 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
596 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
597 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
598 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
599 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
600 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
601 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
602 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
603 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
604 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
605 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
606 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
607 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
608 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
609 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
610 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
611 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
612 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
613 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
614 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
615 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
616 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
617 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
618 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
619 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
620 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
621 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
622 LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
623 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
624 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
625 LINE(MAIN_DELIM, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
626 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
627 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
628 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
629 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
630 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
631 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
632 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
633 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
634 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
635 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0)
638 #define LINE(type, line, fg, bg, attr) \
645 const char *name; /* Option name. */
646 int namelen; /* Size of option name. */
647 const char *line; /* The start of line to match. */
648 int linelen; /* Size of string to match. */
649 int fg, bg, attr; /* Color and text attributes for the lines. */
652 static struct line_info line_info[] = {
653 #define LINE(type, line, fg, bg, attr) \
654 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
659 static enum line_type
660 get_line_type(char *line)
662 int linelen = strlen(line);
665 for (type = 0; type < ARRAY_SIZE(line_info); type++)
666 /* Case insensitive search matches Signed-off-by lines better. */
667 if (linelen >= line_info[type].linelen &&
668 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
675 get_line_attr(enum line_type type)
677 assert(type < ARRAY_SIZE(line_info));
678 return COLOR_PAIR(type) | line_info[type].attr;
681 static struct line_info *
682 get_line_info(char *name, int namelen)
686 for (type = 0; type < ARRAY_SIZE(line_info); type++)
687 if (namelen == line_info[type].namelen &&
688 !string_enum_compare(line_info[type].name, name, namelen))
689 return &line_info[type];
697 int default_bg = COLOR_BLACK;
698 int default_fg = COLOR_WHITE;
703 if (use_default_colors() != ERR) {
708 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
709 struct line_info *info = &line_info[type];
710 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
711 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
713 init_pair(type, fg, bg);
721 unsigned int selected:1;
723 void *data; /* User data */
733 enum request request;
734 struct keybinding *next;
737 static struct keybinding default_keybindings[] = {
739 { 'm', REQ_VIEW_MAIN },
740 { 'd', REQ_VIEW_DIFF },
741 { 'l', REQ_VIEW_LOG },
742 { 't', REQ_VIEW_TREE },
743 { 'f', REQ_VIEW_BLOB },
744 { 'p', REQ_VIEW_PAGER },
745 { 'h', REQ_VIEW_HELP },
746 { 'S', REQ_VIEW_STATUS },
747 { 'c', REQ_VIEW_STAGE },
749 /* View manipulation */
750 { 'q', REQ_VIEW_CLOSE },
751 { KEY_TAB, REQ_VIEW_NEXT },
752 { KEY_RETURN, REQ_ENTER },
753 { KEY_UP, REQ_PREVIOUS },
754 { KEY_DOWN, REQ_NEXT },
755 { 'R', REQ_REFRESH },
757 /* Cursor navigation */
758 { 'k', REQ_MOVE_UP },
759 { 'j', REQ_MOVE_DOWN },
760 { KEY_HOME, REQ_MOVE_FIRST_LINE },
761 { KEY_END, REQ_MOVE_LAST_LINE },
762 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
763 { ' ', REQ_MOVE_PAGE_DOWN },
764 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
765 { 'b', REQ_MOVE_PAGE_UP },
766 { '-', REQ_MOVE_PAGE_UP },
769 { KEY_IC, REQ_SCROLL_LINE_UP },
770 { KEY_DC, REQ_SCROLL_LINE_DOWN },
771 { 'w', REQ_SCROLL_PAGE_UP },
772 { 's', REQ_SCROLL_PAGE_DOWN },
776 { '?', REQ_SEARCH_BACK },
777 { 'n', REQ_FIND_NEXT },
778 { 'N', REQ_FIND_PREV },
782 { 'z', REQ_STOP_LOADING },
783 { 'v', REQ_SHOW_VERSION },
784 { 'r', REQ_SCREEN_REDRAW },
785 { '.', REQ_TOGGLE_LINENO },
786 { 'g', REQ_TOGGLE_REV_GRAPH },
788 { 'u', REQ_STATUS_UPDATE },
789 { 'M', REQ_STATUS_MERGE },
792 /* Using the ncurses SIGWINCH handler. */
793 { KEY_RESIZE, REQ_SCREEN_RESIZE },
796 #define KEYMAP_INFO \
809 #define KEYMAP_(name) KEYMAP_##name
814 static struct int_map keymap_table[] = {
815 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
820 #define set_keymap(map, name) \
821 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
823 static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)];
826 add_keybinding(enum keymap keymap, enum request request, int key)
828 struct keybinding *keybinding;
830 keybinding = calloc(1, sizeof(*keybinding));
832 die("Failed to allocate keybinding");
834 keybinding->alias = key;
835 keybinding->request = request;
836 keybinding->next = keybindings[keymap];
837 keybindings[keymap] = keybinding;
840 /* Looks for a key binding first in the given map, then in the generic map, and
841 * lastly in the default keybindings. */
843 get_keybinding(enum keymap keymap, int key)
845 struct keybinding *kbd;
848 for (kbd = keybindings[keymap]; kbd; kbd = kbd->next)
849 if (kbd->alias == key)
852 for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next)
853 if (kbd->alias == key)
856 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
857 if (default_keybindings[i].alias == key)
858 return default_keybindings[i].request;
860 return (enum request) key;
869 static struct key key_table[] = {
870 { "Enter", KEY_RETURN },
872 { "Backspace", KEY_BACKSPACE },
874 { "Escape", KEY_ESC },
875 { "Left", KEY_LEFT },
876 { "Right", KEY_RIGHT },
878 { "Down", KEY_DOWN },
879 { "Insert", KEY_IC },
880 { "Delete", KEY_DC },
882 { "Home", KEY_HOME },
884 { "PageUp", KEY_PPAGE },
885 { "PageDown", KEY_NPAGE },
895 { "F10", KEY_F(10) },
896 { "F11", KEY_F(11) },
897 { "F12", KEY_F(12) },
901 get_key_value(const char *name)
905 for (i = 0; i < ARRAY_SIZE(key_table); i++)
906 if (!strcasecmp(key_table[i].name, name))
907 return key_table[i].value;
909 if (strlen(name) == 1 && isprint(*name))
916 get_key_name(int key_value)
918 static char key_char[] = "'X'";
922 for (key = 0; key < ARRAY_SIZE(key_table); key++)
923 if (key_table[key].value == key_value)
924 seq = key_table[key].name;
928 isprint(key_value)) {
929 key_char[1] = (char) key_value;
933 return seq ? seq : "'?'";
937 get_key(enum request request)
939 static char buf[BUFSIZ];
946 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
947 struct keybinding *keybinding = &default_keybindings[i];
949 if (keybinding->request != request)
952 if (!string_format_from(buf, &pos, "%s%s", sep,
953 get_key_name(keybinding->alias)))
954 return "Too many keybindings!";
964 char cmd[SIZEOF_STR];
967 static struct run_request *run_request;
968 static size_t run_requests;
971 add_run_request(enum keymap keymap, int key, int argc, char **argv)
973 struct run_request *tmp;
974 struct run_request req = { keymap, key };
977 for (bufpos = 0; argc > 0; argc--, argv++)
978 if (!string_format_from(req.cmd, &bufpos, "%s ", *argv))
981 req.cmd[bufpos - 1] = 0;
983 tmp = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
988 run_request[run_requests++] = req;
990 return REQ_NONE + run_requests;
993 static struct run_request *
994 get_run_request(enum request request)
996 if (request <= REQ_NONE)
998 return &run_request[request - REQ_NONE - 1];
1002 add_builtin_run_requests(void)
1009 { KEYMAP_MAIN, 'C', { "git cherry-pick %(commit)" } },
1010 { KEYMAP_GENERIC, 'G', { "git gc" } },
1014 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1017 req = add_run_request(reqs[i].keymap, reqs[i].key, 1, reqs[i].argv);
1018 if (req != REQ_NONE)
1019 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1024 * User config file handling.
1027 static struct int_map color_map[] = {
1028 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1040 #define set_color(color, name) \
1041 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1043 static struct int_map attr_map[] = {
1044 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1051 ATTR_MAP(UNDERLINE),
1054 #define set_attribute(attr, name) \
1055 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1057 static int config_lineno;
1058 static bool config_errors;
1059 static char *config_msg;
1061 /* Wants: object fgcolor bgcolor [attr] */
1063 option_color_command(int argc, char *argv[])
1065 struct line_info *info;
1067 if (argc != 3 && argc != 4) {
1068 config_msg = "Wrong number of arguments given to color command";
1072 info = get_line_info(argv[0], strlen(argv[0]));
1074 config_msg = "Unknown color name";
1078 if (set_color(&info->fg, argv[1]) == ERR ||
1079 set_color(&info->bg, argv[2]) == ERR) {
1080 config_msg = "Unknown color";
1084 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1085 config_msg = "Unknown attribute";
1092 /* Wants: name = value */
1094 option_set_command(int argc, char *argv[])
1097 config_msg = "Wrong number of arguments given to set command";
1101 if (strcmp(argv[1], "=")) {
1102 config_msg = "No value assigned";
1106 if (!strcmp(argv[0], "show-rev-graph")) {
1107 opt_rev_graph = (!strcmp(argv[2], "1") ||
1108 !strcmp(argv[2], "true") ||
1109 !strcmp(argv[2], "yes"));
1113 if (!strcmp(argv[0], "line-number-interval")) {
1114 opt_num_interval = atoi(argv[2]);
1118 if (!strcmp(argv[0], "tab-size")) {
1119 opt_tab_size = atoi(argv[2]);
1123 if (!strcmp(argv[0], "commit-encoding")) {
1124 char *arg = argv[2];
1125 int delimiter = *arg;
1128 switch (delimiter) {
1131 for (arg++, i = 0; arg[i]; i++)
1132 if (arg[i] == delimiter) {
1137 string_ncopy(opt_encoding, arg, strlen(arg));
1142 config_msg = "Unknown variable name";
1146 /* Wants: mode request key */
1148 option_bind_command(int argc, char *argv[])
1150 enum request request;
1155 config_msg = "Wrong number of arguments given to bind command";
1159 if (set_keymap(&keymap, argv[0]) == ERR) {
1160 config_msg = "Unknown key map";
1164 key = get_key_value(argv[1]);
1166 config_msg = "Unknown key";
1170 request = get_request(argv[2]);
1171 if (request == REQ_NONE) {
1172 const char *obsolete[] = { "cherry-pick" };
1173 size_t namelen = strlen(argv[2]);
1176 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1177 if (namelen == strlen(obsolete[i]) &&
1178 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1179 config_msg = "Obsolete request name";
1184 if (request == REQ_NONE && *argv[2]++ == '!')
1185 request = add_run_request(keymap, key, argc - 2, argv + 2);
1186 if (request == REQ_NONE) {
1187 config_msg = "Unknown request name";
1191 add_keybinding(keymap, request, key);
1197 set_option(char *opt, char *value)
1204 while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) {
1205 argv[argc++] = value;
1208 /* Nothing more to tokenize or last available token. */
1209 if (!*value || argc >= ARRAY_SIZE(argv))
1213 while (isspace(*value))
1217 if (!strcmp(opt, "color"))
1218 return option_color_command(argc, argv);
1220 if (!strcmp(opt, "set"))
1221 return option_set_command(argc, argv);
1223 if (!strcmp(opt, "bind"))
1224 return option_bind_command(argc, argv);
1226 config_msg = "Unknown option command";
1231 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1236 config_msg = "Internal error";
1238 /* Check for comment markers, since read_properties() will
1239 * only ensure opt and value are split at first " \t". */
1240 optlen = strcspn(opt, "#");
1244 if (opt[optlen] != 0) {
1245 config_msg = "No option value";
1249 /* Look for comment endings in the value. */
1250 size_t len = strcspn(value, "#");
1252 if (len < valuelen) {
1254 value[valuelen] = 0;
1257 status = set_option(opt, value);
1260 if (status == ERR) {
1261 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1262 config_lineno, (int) optlen, opt, config_msg);
1263 config_errors = TRUE;
1266 /* Always keep going if errors are encountered. */
1273 char *home = getenv("HOME");
1274 char buf[SIZEOF_STR];
1278 config_errors = FALSE;
1280 add_builtin_run_requests();
1282 if (!home || !string_format(buf, "%s/.tigrc", home))
1285 /* It's ok that the file doesn't exist. */
1286 file = fopen(buf, "r");
1290 if (read_properties(file, " \t", read_option) == ERR ||
1291 config_errors == TRUE)
1292 fprintf(stderr, "Errors while loading %s.\n", buf);
1305 /* The display array of active views and the index of the current view. */
1306 static struct view *display[2];
1307 static unsigned int current_view;
1309 /* Reading from the prompt? */
1310 static bool input_mode = FALSE;
1312 #define foreach_displayed_view(view, i) \
1313 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1315 #define displayed_views() (display[1] != NULL ? 2 : 1)
1317 /* Current head and commit ID */
1318 static char ref_blob[SIZEOF_REF] = "";
1319 static char ref_commit[SIZEOF_REF] = "HEAD";
1320 static char ref_head[SIZEOF_REF] = "HEAD";
1323 const char *name; /* View name */
1324 const char *cmd_fmt; /* Default command line format */
1325 const char *cmd_env; /* Command line set via environment */
1326 const char *id; /* Points to either of ref_{head,commit,blob} */
1328 struct view_ops *ops; /* View operations */
1330 enum keymap keymap; /* What keymap does this view have */
1332 char cmd[SIZEOF_STR]; /* Command buffer */
1333 char ref[SIZEOF_REF]; /* Hovered commit reference */
1334 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1336 int height, width; /* The width and height of the main window */
1337 WINDOW *win; /* The main window */
1338 WINDOW *title; /* The title window living below the main window */
1341 unsigned long offset; /* Offset of the window top */
1342 unsigned long lineno; /* Current line number */
1345 char grep[SIZEOF_STR]; /* Search string */
1346 regex_t *regex; /* Pre-compiled regex */
1348 /* If non-NULL, points to the view that opened this view. If this view
1349 * is closed tig will switch back to the parent view. */
1350 struct view *parent;
1353 unsigned long lines; /* Total number of lines */
1354 struct line *line; /* Line index */
1355 unsigned long line_size;/* Total number of allocated lines */
1356 unsigned int digits; /* Number of digits in the lines member. */
1364 /* What type of content being displayed. Used in the title bar. */
1366 /* Open and reads in all view content. */
1367 bool (*open)(struct view *view);
1368 /* Read one line; updates view->line. */
1369 bool (*read)(struct view *view, char *data);
1370 /* Draw one line; @lineno must be < view->height. */
1371 bool (*draw)(struct view *view, struct line *line, unsigned int lineno, bool selected);
1372 /* Depending on view handle a special requests. */
1373 enum request (*request)(struct view *view, enum request request, struct line *line);
1374 /* Search for regex in a line. */
1375 bool (*grep)(struct view *view, struct line *line);
1377 void (*select)(struct view *view, struct line *line);
1380 static struct view_ops pager_ops;
1381 static struct view_ops main_ops;
1382 static struct view_ops tree_ops;
1383 static struct view_ops blob_ops;
1384 static struct view_ops help_ops;
1385 static struct view_ops status_ops;
1386 static struct view_ops stage_ops;
1388 #define VIEW_STR(name, cmd, env, ref, ops, map) \
1389 { name, cmd, #env, ref, ops, map}
1391 #define VIEW_(id, name, ops, ref) \
1392 VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id)
1395 static struct view views[] = {
1396 VIEW_(MAIN, "main", &main_ops, ref_head),
1397 VIEW_(DIFF, "diff", &pager_ops, ref_commit),
1398 VIEW_(LOG, "log", &pager_ops, ref_head),
1399 VIEW_(TREE, "tree", &tree_ops, ref_commit),
1400 VIEW_(BLOB, "blob", &blob_ops, ref_blob),
1401 VIEW_(HELP, "help", &help_ops, ""),
1402 VIEW_(PAGER, "pager", &pager_ops, "stdin"),
1403 VIEW_(STATUS, "status", &status_ops, ""),
1404 VIEW_(STAGE, "stage", &stage_ops, ""),
1407 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1409 #define foreach_view(view, i) \
1410 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1412 #define view_is_displayed(view) \
1413 (view == display[0] || view == display[1])
1416 draw_view_line(struct view *view, unsigned int lineno)
1419 bool selected = (view->offset + lineno == view->lineno);
1422 assert(view_is_displayed(view));
1424 if (view->offset + lineno >= view->lines)
1427 line = &view->line[view->offset + lineno];
1430 line->selected = TRUE;
1431 view->ops->select(view, line);
1432 } else if (line->selected) {
1433 line->selected = FALSE;
1434 wmove(view->win, lineno, 0);
1435 wclrtoeol(view->win);
1438 scrollok(view->win, FALSE);
1439 draw_ok = view->ops->draw(view, line, lineno, selected);
1440 scrollok(view->win, TRUE);
1446 redraw_view_from(struct view *view, int lineno)
1448 assert(0 <= lineno && lineno < view->height);
1450 for (; lineno < view->height; lineno++) {
1451 if (!draw_view_line(view, lineno))
1455 redrawwin(view->win);
1457 wnoutrefresh(view->win);
1459 wrefresh(view->win);
1463 redraw_view(struct view *view)
1466 redraw_view_from(view, 0);
1471 update_view_title(struct view *view)
1473 char buf[SIZEOF_STR];
1474 char state[SIZEOF_STR];
1475 size_t bufpos = 0, statelen = 0;
1477 assert(view_is_displayed(view));
1479 if (view != VIEW(REQ_VIEW_STATUS) && (view->lines || view->pipe)) {
1480 unsigned int view_lines = view->offset + view->height;
1481 unsigned int lines = view->lines
1482 ? MIN(view_lines, view->lines) * 100 / view->lines
1485 string_format_from(state, &statelen, "- %s %d of %d (%d%%)",
1492 time_t secs = time(NULL) - view->start_time;
1494 /* Three git seconds are a long time ... */
1496 string_format_from(state, &statelen, " %lds", secs);
1500 string_format_from(buf, &bufpos, "[%s]", view->name);
1501 if (*view->ref && bufpos < view->width) {
1502 size_t refsize = strlen(view->ref);
1503 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
1505 if (minsize < view->width)
1506 refsize = view->width - minsize + 7;
1507 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
1510 if (statelen && bufpos < view->width) {
1511 string_format_from(buf, &bufpos, " %s", state);
1514 if (view == display[current_view])
1515 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
1517 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
1519 mvwaddnstr(view->title, 0, 0, buf, bufpos);
1520 wclrtoeol(view->title);
1521 wmove(view->title, 0, view->width - 1);
1524 wnoutrefresh(view->title);
1526 wrefresh(view->title);
1530 resize_display(void)
1533 struct view *base = display[0];
1534 struct view *view = display[1] ? display[1] : display[0];
1536 /* Setup window dimensions */
1538 getmaxyx(stdscr, base->height, base->width);
1540 /* Make room for the status window. */
1544 /* Horizontal split. */
1545 view->width = base->width;
1546 view->height = SCALE_SPLIT_VIEW(base->height);
1547 base->height -= view->height;
1549 /* Make room for the title bar. */
1553 /* Make room for the title bar. */
1558 foreach_displayed_view (view, i) {
1560 view->win = newwin(view->height, 0, offset, 0);
1562 die("Failed to create %s view", view->name);
1564 scrollok(view->win, TRUE);
1566 view->title = newwin(1, 0, offset + view->height, 0);
1568 die("Failed to create title window");
1571 wresize(view->win, view->height, view->width);
1572 mvwin(view->win, offset, 0);
1573 mvwin(view->title, offset + view->height, 0);
1576 offset += view->height + 1;
1581 redraw_display(void)
1586 foreach_displayed_view (view, i) {
1588 update_view_title(view);
1593 update_display_cursor(struct view *view)
1595 /* Move the cursor to the right-most column of the cursor line.
1597 * XXX: This could turn out to be a bit expensive, but it ensures that
1598 * the cursor does not jump around. */
1600 wmove(view->win, view->lineno - view->offset, view->width - 1);
1601 wrefresh(view->win);
1609 /* Scrolling backend */
1611 do_scroll_view(struct view *view, int lines)
1613 bool redraw_current_line = FALSE;
1615 /* The rendering expects the new offset. */
1616 view->offset += lines;
1618 assert(0 <= view->offset && view->offset < view->lines);
1621 /* Move current line into the view. */
1622 if (view->lineno < view->offset) {
1623 view->lineno = view->offset;
1624 redraw_current_line = TRUE;
1625 } else if (view->lineno >= view->offset + view->height) {
1626 view->lineno = view->offset + view->height - 1;
1627 redraw_current_line = TRUE;
1630 assert(view->offset <= view->lineno && view->lineno < view->lines);
1632 /* Redraw the whole screen if scrolling is pointless. */
1633 if (view->height < ABS(lines)) {
1637 int line = lines > 0 ? view->height - lines : 0;
1638 int end = line + ABS(lines);
1640 wscrl(view->win, lines);
1642 for (; line < end; line++) {
1643 if (!draw_view_line(view, line))
1647 if (redraw_current_line)
1648 draw_view_line(view, view->lineno - view->offset);
1651 redrawwin(view->win);
1652 wrefresh(view->win);
1656 /* Scroll frontend */
1658 scroll_view(struct view *view, enum request request)
1662 assert(view_is_displayed(view));
1665 case REQ_SCROLL_PAGE_DOWN:
1666 lines = view->height;
1667 case REQ_SCROLL_LINE_DOWN:
1668 if (view->offset + lines > view->lines)
1669 lines = view->lines - view->offset;
1671 if (lines == 0 || view->offset + view->height >= view->lines) {
1672 report("Cannot scroll beyond the last line");
1677 case REQ_SCROLL_PAGE_UP:
1678 lines = view->height;
1679 case REQ_SCROLL_LINE_UP:
1680 if (lines > view->offset)
1681 lines = view->offset;
1684 report("Cannot scroll beyond the first line");
1692 die("request %d not handled in switch", request);
1695 do_scroll_view(view, lines);
1700 move_view(struct view *view, enum request request)
1702 int scroll_steps = 0;
1706 case REQ_MOVE_FIRST_LINE:
1707 steps = -view->lineno;
1710 case REQ_MOVE_LAST_LINE:
1711 steps = view->lines - view->lineno - 1;
1714 case REQ_MOVE_PAGE_UP:
1715 steps = view->height > view->lineno
1716 ? -view->lineno : -view->height;
1719 case REQ_MOVE_PAGE_DOWN:
1720 steps = view->lineno + view->height >= view->lines
1721 ? view->lines - view->lineno - 1 : view->height;
1733 die("request %d not handled in switch", request);
1736 if (steps <= 0 && view->lineno == 0) {
1737 report("Cannot move beyond the first line");
1740 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
1741 report("Cannot move beyond the last line");
1745 /* Move the current line */
1746 view->lineno += steps;
1747 assert(0 <= view->lineno && view->lineno < view->lines);
1749 /* Check whether the view needs to be scrolled */
1750 if (view->lineno < view->offset ||
1751 view->lineno >= view->offset + view->height) {
1752 scroll_steps = steps;
1753 if (steps < 0 && -steps > view->offset) {
1754 scroll_steps = -view->offset;
1756 } else if (steps > 0) {
1757 if (view->lineno == view->lines - 1 &&
1758 view->lines > view->height) {
1759 scroll_steps = view->lines - view->offset - 1;
1760 if (scroll_steps >= view->height)
1761 scroll_steps -= view->height - 1;
1766 if (!view_is_displayed(view)) {
1767 view->offset += scroll_steps;
1768 assert(0 <= view->offset && view->offset < view->lines);
1769 view->ops->select(view, &view->line[view->lineno]);
1773 /* Repaint the old "current" line if we be scrolling */
1774 if (ABS(steps) < view->height)
1775 draw_view_line(view, view->lineno - steps - view->offset);
1778 do_scroll_view(view, scroll_steps);
1782 /* Draw the current line */
1783 draw_view_line(view, view->lineno - view->offset);
1785 redrawwin(view->win);
1786 wrefresh(view->win);
1795 static void search_view(struct view *view, enum request request);
1798 find_next_line(struct view *view, unsigned long lineno, struct line *line)
1800 assert(view_is_displayed(view));
1802 if (!view->ops->grep(view, line))
1805 if (lineno - view->offset >= view->height) {
1806 view->offset = lineno;
1807 view->lineno = lineno;
1811 unsigned long old_lineno = view->lineno - view->offset;
1813 view->lineno = lineno;
1814 draw_view_line(view, old_lineno);
1816 draw_view_line(view, view->lineno - view->offset);
1817 redrawwin(view->win);
1818 wrefresh(view->win);
1821 report("Line %ld matches '%s'", lineno + 1, view->grep);
1826 find_next(struct view *view, enum request request)
1828 unsigned long lineno = view->lineno;
1833 report("No previous search");
1835 search_view(view, request);
1845 case REQ_SEARCH_BACK:
1854 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
1855 lineno += direction;
1857 /* Note, lineno is unsigned long so will wrap around in which case it
1858 * will become bigger than view->lines. */
1859 for (; lineno < view->lines; lineno += direction) {
1860 struct line *line = &view->line[lineno];
1862 if (find_next_line(view, lineno, line))
1866 report("No match found for '%s'", view->grep);
1870 search_view(struct view *view, enum request request)
1875 regfree(view->regex);
1878 view->regex = calloc(1, sizeof(*view->regex));
1883 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
1884 if (regex_err != 0) {
1885 char buf[SIZEOF_STR] = "unknown error";
1887 regerror(regex_err, view->regex, buf, sizeof(buf));
1888 report("Search failed: %s", buf);
1892 string_copy(view->grep, opt_search);
1894 find_next(view, request);
1898 * Incremental updating
1902 end_update(struct view *view)
1906 set_nonblocking_input(FALSE);
1907 if (view->pipe == stdin)
1915 begin_update(struct view *view)
1921 string_copy(view->cmd, opt_cmd);
1923 /* When running random commands, initially show the
1924 * command in the title. However, it maybe later be
1925 * overwritten if a commit line is selected. */
1926 if (view == VIEW(REQ_VIEW_PAGER))
1927 string_copy(view->ref, view->cmd);
1931 } else if (view == VIEW(REQ_VIEW_TREE)) {
1932 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
1933 char path[SIZEOF_STR];
1935 if (strcmp(view->vid, view->id))
1936 opt_path[0] = path[0] = 0;
1937 else if (sq_quote(path, 0, opt_path) >= sizeof(path))
1940 if (!string_format(view->cmd, format, view->id, path))
1944 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
1945 const char *id = view->id;
1947 if (!string_format(view->cmd, format, id, id, id, id, id))
1950 /* Put the current ref_* value to the view title ref
1951 * member. This is needed by the blob view. Most other
1952 * views sets it automatically after loading because the
1953 * first line is a commit line. */
1954 string_copy_rev(view->ref, view->id);
1957 /* Special case for the pager view. */
1959 view->pipe = opt_pipe;
1962 view->pipe = popen(view->cmd, "r");
1968 set_nonblocking_input(TRUE);
1973 string_copy_rev(view->vid, view->id);
1978 for (i = 0; i < view->lines; i++)
1979 if (view->line[i].data)
1980 free(view->line[i].data);
1986 view->start_time = time(NULL);
1991 static struct line *
1992 realloc_lines(struct view *view, size_t line_size)
1994 struct line *tmp = realloc(view->line, sizeof(*view->line) * line_size);
2000 view->line_size = line_size;
2005 update_view(struct view *view)
2007 char in_buffer[BUFSIZ];
2008 char out_buffer[BUFSIZ * 2];
2010 /* The number of lines to read. If too low it will cause too much
2011 * redrawing (and possible flickering), if too high responsiveness
2013 unsigned long lines = view->height;
2014 int redraw_from = -1;
2019 /* Only redraw if lines are visible. */
2020 if (view->offset + view->height >= view->lines)
2021 redraw_from = view->lines - view->offset;
2023 /* FIXME: This is probably not perfect for backgrounded views. */
2024 if (!realloc_lines(view, view->lines + lines))
2027 while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) {
2028 size_t linelen = strlen(line);
2031 line[linelen - 1] = 0;
2033 if (opt_iconv != ICONV_NONE) {
2034 ICONV_CONST char *inbuf = line;
2035 size_t inlen = linelen;
2037 char *outbuf = out_buffer;
2038 size_t outlen = sizeof(out_buffer);
2042 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2043 if (ret != (size_t) -1) {
2045 linelen = strlen(out_buffer);
2049 if (!view->ops->read(view, line))
2059 lines = view->lines;
2060 for (digits = 0; lines; digits++)
2063 /* Keep the displayed view in sync with line number scaling. */
2064 if (digits != view->digits) {
2065 view->digits = digits;
2070 if (!view_is_displayed(view))
2073 if (view == VIEW(REQ_VIEW_TREE)) {
2074 /* Clear the view and redraw everything since the tree sorting
2075 * might have rearranged things. */
2078 } else if (redraw_from >= 0) {
2079 /* If this is an incremental update, redraw the previous line
2080 * since for commits some members could have changed when
2081 * loading the main view. */
2082 if (redraw_from > 0)
2085 /* Since revision graph visualization requires knowledge
2086 * about the parent commit, it causes a further one-off
2087 * needed to be redrawn for incremental updates. */
2088 if (redraw_from > 0 && opt_rev_graph)
2091 /* Incrementally draw avoids flickering. */
2092 redraw_view_from(view, redraw_from);
2095 /* Update the title _after_ the redraw so that if the redraw picks up a
2096 * commit reference in view->ref it'll be available here. */
2097 update_view_title(view);
2100 if (ferror(view->pipe)) {
2101 report("Failed to read: %s", strerror(errno));
2104 } else if (feof(view->pipe)) {
2112 report("Allocation failure");
2115 view->ops->read(view, NULL);
2120 static struct line *
2121 add_line_data(struct view *view, void *data, enum line_type type)
2123 struct line *line = &view->line[view->lines++];
2125 memset(line, 0, sizeof(*line));
2132 static struct line *
2133 add_line_text(struct view *view, char *data, enum line_type type)
2136 data = strdup(data);
2138 return data ? add_line_data(view, data, type) : NULL;
2147 OPEN_DEFAULT = 0, /* Use default view switching. */
2148 OPEN_SPLIT = 1, /* Split current view. */
2149 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2150 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2154 open_view(struct view *prev, enum request request, enum open_flags flags)
2156 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2157 bool split = !!(flags & OPEN_SPLIT);
2158 bool reload = !!(flags & OPEN_RELOAD);
2159 struct view *view = VIEW(request);
2160 int nviews = displayed_views();
2161 struct view *base_view = display[0];
2163 if (view == prev && nviews == 1 && !reload) {
2164 report("Already in %s view", view->name);
2168 if (view->ops->open) {
2169 if (!view->ops->open(view)) {
2170 report("Failed to load %s view", view->name);
2174 } else if ((reload || strcmp(view->vid, view->id)) &&
2175 !begin_update(view)) {
2176 report("Failed to load %s view", view->name);
2185 /* Maximize the current view. */
2186 memset(display, 0, sizeof(display));
2188 display[current_view] = view;
2191 /* Resize the view when switching between split- and full-screen,
2192 * or when switching between two different full-screen views. */
2193 if (nviews != displayed_views() ||
2194 (nviews == 1 && base_view != display[0]))
2197 if (split && prev->lineno - prev->offset >= prev->height) {
2198 /* Take the title line into account. */
2199 int lines = prev->lineno - prev->offset - prev->height + 1;
2201 /* Scroll the view that was split if the current line is
2202 * outside the new limited view. */
2203 do_scroll_view(prev, lines);
2206 if (prev && view != prev) {
2207 if (split && !backgrounded) {
2208 /* "Blur" the previous view. */
2209 update_view_title(prev);
2212 view->parent = prev;
2215 if (view->pipe && view->lines == 0) {
2216 /* Clear the old view and let the incremental updating refill
2225 /* If the view is backgrounded the above calls to report()
2226 * won't redraw the view title. */
2228 update_view_title(view);
2232 open_external_viewer(const char *cmd)
2234 def_prog_mode(); /* save current tty modes */
2235 endwin(); /* restore original tty modes */
2237 fprintf(stderr, "Press Enter to continue");
2244 open_mergetool(const char *file)
2246 char cmd[SIZEOF_STR];
2247 char file_sq[SIZEOF_STR];
2249 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2250 string_format(cmd, "git mergetool %s", file_sq)) {
2251 open_external_viewer(cmd);
2256 open_editor(bool from_root, const char *file)
2258 char cmd[SIZEOF_STR];
2259 char file_sq[SIZEOF_STR];
2261 char *prefix = from_root ? opt_cdup : "";
2263 editor = getenv("GIT_EDITOR");
2264 if (!editor && *opt_editor)
2265 editor = opt_editor;
2267 editor = getenv("VISUAL");
2269 editor = getenv("EDITOR");
2273 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2274 string_format(cmd, "%s %s%s", editor, prefix, file_sq)) {
2275 open_external_viewer(cmd);
2280 open_run_request(enum request request)
2282 struct run_request *req = get_run_request(request);
2283 char buf[SIZEOF_STR * 2];
2288 report("Unknown run request");
2296 char *next = strstr(cmd, "%(");
2297 int len = next - cmd;
2304 } else if (!strncmp(next, "%(head)", 7)) {
2307 } else if (!strncmp(next, "%(commit)", 9)) {
2310 } else if (!strncmp(next, "%(blob)", 7)) {
2314 report("Unknown replacement in run request: `%s`", req->cmd);
2318 if (!string_format_from(buf, &bufpos, "%.*s%s", len, cmd, value))
2322 next = strchr(next, ')') + 1;
2326 open_external_viewer(buf);
2330 * User request switch noodle
2334 view_driver(struct view *view, enum request request)
2338 if (request == REQ_NONE) {
2343 if (request > REQ_NONE) {
2344 open_run_request(request);
2348 if (view && view->lines) {
2349 request = view->ops->request(view, request, &view->line[view->lineno]);
2350 if (request == REQ_NONE)
2357 case REQ_MOVE_PAGE_UP:
2358 case REQ_MOVE_PAGE_DOWN:
2359 case REQ_MOVE_FIRST_LINE:
2360 case REQ_MOVE_LAST_LINE:
2361 move_view(view, request);
2364 case REQ_SCROLL_LINE_DOWN:
2365 case REQ_SCROLL_LINE_UP:
2366 case REQ_SCROLL_PAGE_DOWN:
2367 case REQ_SCROLL_PAGE_UP:
2368 scroll_view(view, request);
2373 report("No file chosen, press %s to open tree view",
2374 get_key(REQ_VIEW_TREE));
2377 open_view(view, request, OPEN_DEFAULT);
2380 case REQ_VIEW_PAGER:
2381 if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2382 report("No pager content, press %s to run command from prompt",
2383 get_key(REQ_PROMPT));
2386 open_view(view, request, OPEN_DEFAULT);
2389 case REQ_VIEW_STAGE:
2390 if (!VIEW(REQ_VIEW_STAGE)->lines) {
2391 report("No stage content, press %s to open the status view and choose file",
2392 get_key(REQ_VIEW_STATUS));
2395 open_view(view, request, OPEN_DEFAULT);
2398 case REQ_VIEW_STATUS:
2399 if (opt_is_inside_work_tree == FALSE) {
2400 report("The status view requires a working tree");
2403 open_view(view, request, OPEN_DEFAULT);
2411 open_view(view, request, OPEN_DEFAULT);
2416 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2418 if ((view == VIEW(REQ_VIEW_DIFF) &&
2419 view->parent == VIEW(REQ_VIEW_MAIN)) ||
2420 (view == VIEW(REQ_VIEW_STAGE) &&
2421 view->parent == VIEW(REQ_VIEW_STATUS)) ||
2422 (view == VIEW(REQ_VIEW_BLOB) &&
2423 view->parent == VIEW(REQ_VIEW_TREE))) {
2426 view = view->parent;
2427 line = view->lineno;
2428 move_view(view, request);
2429 if (view_is_displayed(view))
2430 update_view_title(view);
2431 if (line != view->lineno)
2432 view->ops->request(view, REQ_ENTER,
2433 &view->line[view->lineno]);
2436 move_view(view, request);
2442 int nviews = displayed_views();
2443 int next_view = (current_view + 1) % nviews;
2445 if (next_view == current_view) {
2446 report("Only one view is displayed");
2450 current_view = next_view;
2451 /* Blur out the title of the previous view. */
2452 update_view_title(view);
2457 report("Refreshing is not yet supported for the %s view", view->name);
2460 case REQ_TOGGLE_LINENO:
2461 opt_line_number = !opt_line_number;
2465 case REQ_TOGGLE_REV_GRAPH:
2466 opt_rev_graph = !opt_rev_graph;
2471 /* Always reload^Wrerun commands from the prompt. */
2472 open_view(view, opt_request, OPEN_RELOAD);
2476 case REQ_SEARCH_BACK:
2477 search_view(view, request);
2482 find_next(view, request);
2485 case REQ_STOP_LOADING:
2486 for (i = 0; i < ARRAY_SIZE(views); i++) {
2489 report("Stopped loading the %s view", view->name),
2494 case REQ_SHOW_VERSION:
2495 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
2498 case REQ_SCREEN_RESIZE:
2501 case REQ_SCREEN_REDRAW:
2506 report("Nothing to edit");
2511 report("Nothing to enter");
2515 case REQ_VIEW_CLOSE:
2516 /* XXX: Mark closed views by letting view->parent point to the
2517 * view itself. Parents to closed view should never be
2520 view->parent->parent != view->parent) {
2521 memset(display, 0, sizeof(display));
2523 display[current_view] = view->parent;
2524 view->parent = view;
2534 /* An unknown key will show most commonly used commands. */
2535 report("Unknown key, press 'h' for help");
2548 pager_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
2550 char *text = line->data;
2551 enum line_type type = line->type;
2552 int textlen = strlen(text);
2555 wmove(view->win, lineno, 0);
2559 wchgat(view->win, -1, 0, type, NULL);
2562 attr = get_line_attr(type);
2563 wattrset(view->win, attr);
2565 if (opt_line_number || opt_tab_size < TABSIZE) {
2566 static char spaces[] = " ";
2567 int col_offset = 0, col = 0;
2569 if (opt_line_number) {
2570 unsigned long real_lineno = view->offset + lineno + 1;
2572 if (real_lineno == 1 ||
2573 (real_lineno % opt_num_interval) == 0) {
2574 wprintw(view->win, "%.*d", view->digits, real_lineno);
2577 waddnstr(view->win, spaces,
2578 MIN(view->digits, STRING_SIZE(spaces)));
2580 waddstr(view->win, ": ");
2581 col_offset = view->digits + 2;
2584 while (text && col_offset + col < view->width) {
2585 int cols_max = view->width - col_offset - col;
2589 if (*text == '\t') {
2591 assert(sizeof(spaces) > TABSIZE);
2593 cols = opt_tab_size - (col % opt_tab_size);
2596 text = strchr(text, '\t');
2597 cols = line ? text - pos : strlen(pos);
2600 waddnstr(view->win, pos, MIN(cols, cols_max));
2605 int col = 0, pos = 0;
2607 for (; pos < textlen && col < view->width; pos++, col++)
2608 if (text[pos] == '\t')
2609 col += TABSIZE - (col % TABSIZE) - 1;
2611 waddnstr(view->win, text, pos);
2618 add_describe_ref(char *buf, size_t *bufpos, char *commit_id, const char *sep)
2620 char refbuf[SIZEOF_STR];
2624 if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id))
2627 pipe = popen(refbuf, "r");
2631 if ((ref = fgets(refbuf, sizeof(refbuf), pipe)))
2632 ref = chomp_string(ref);
2638 /* This is the only fatal call, since it can "corrupt" the buffer. */
2639 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
2646 add_pager_refs(struct view *view, struct line *line)
2648 char buf[SIZEOF_STR];
2649 char *commit_id = line->data + STRING_SIZE("commit ");
2651 size_t bufpos = 0, refpos = 0;
2652 const char *sep = "Refs: ";
2653 bool is_tag = FALSE;
2655 assert(line->type == LINE_COMMIT);
2657 refs = get_refs(commit_id);
2659 if (view == VIEW(REQ_VIEW_DIFF))
2660 goto try_add_describe_ref;
2665 struct ref *ref = refs[refpos];
2666 char *fmt = ref->tag ? "%s[%s]" :
2667 ref->remote ? "%s<%s>" : "%s%s";
2669 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
2674 } while (refs[refpos++]->next);
2676 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
2677 try_add_describe_ref:
2678 /* Add <tag>-g<commit_id> "fake" reference. */
2679 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
2686 if (!realloc_lines(view, view->line_size + 1))
2689 add_line_text(view, buf, LINE_PP_REFS);
2693 pager_read(struct view *view, char *data)
2700 line = add_line_text(view, data, get_line_type(data));
2704 if (line->type == LINE_COMMIT &&
2705 (view == VIEW(REQ_VIEW_DIFF) ||
2706 view == VIEW(REQ_VIEW_LOG)))
2707 add_pager_refs(view, line);
2713 pager_request(struct view *view, enum request request, struct line *line)
2717 if (request != REQ_ENTER)
2720 if (line->type == LINE_COMMIT &&
2721 (view == VIEW(REQ_VIEW_LOG) ||
2722 view == VIEW(REQ_VIEW_PAGER))) {
2723 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
2727 /* Always scroll the view even if it was split. That way
2728 * you can use Enter to scroll through the log view and
2729 * split open each commit diff. */
2730 scroll_view(view, REQ_SCROLL_LINE_DOWN);
2732 /* FIXME: A minor workaround. Scrolling the view will call report("")
2733 * but if we are scrolling a non-current view this won't properly
2734 * update the view title. */
2736 update_view_title(view);
2742 pager_grep(struct view *view, struct line *line)
2745 char *text = line->data;
2750 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
2757 pager_select(struct view *view, struct line *line)
2759 if (line->type == LINE_COMMIT) {
2760 char *text = line->data + STRING_SIZE("commit ");
2762 if (view != VIEW(REQ_VIEW_PAGER))
2763 string_copy_rev(view->ref, text);
2764 string_copy_rev(ref_commit, text);
2768 static struct view_ops pager_ops = {
2784 help_open(struct view *view)
2787 int lines = ARRAY_SIZE(req_info) + 2;
2790 if (view->lines > 0)
2793 for (i = 0; i < ARRAY_SIZE(req_info); i++)
2794 if (!req_info[i].request)
2797 lines += run_requests + 1;
2799 view->line = calloc(lines, sizeof(*view->line));
2803 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
2805 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
2808 if (req_info[i].request == REQ_NONE)
2811 if (!req_info[i].request) {
2812 add_line_text(view, "", LINE_DEFAULT);
2813 add_line_text(view, req_info[i].help, LINE_DEFAULT);
2817 key = get_key(req_info[i].request);
2819 key = "(no key defined)";
2821 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
2824 add_line_text(view, buf, LINE_DEFAULT);
2828 add_line_text(view, "", LINE_DEFAULT);
2829 add_line_text(view, "External commands:", LINE_DEFAULT);
2832 for (i = 0; i < run_requests; i++) {
2833 struct run_request *req = get_run_request(REQ_NONE + i + 1);
2839 key = get_key_name(req->key);
2841 key = "(no key defined)";
2843 if (!string_format(buf, " %-10s %-14s `%s`",
2844 keymap_table[req->keymap].name,
2848 add_line_text(view, buf, LINE_DEFAULT);
2854 static struct view_ops help_ops = {
2869 struct tree_stack_entry {
2870 struct tree_stack_entry *prev; /* Entry below this in the stack */
2871 unsigned long lineno; /* Line number to restore */
2872 char *name; /* Position of name in opt_path */
2875 /* The top of the path stack. */
2876 static struct tree_stack_entry *tree_stack = NULL;
2877 unsigned long tree_lineno = 0;
2880 pop_tree_stack_entry(void)
2882 struct tree_stack_entry *entry = tree_stack;
2884 tree_lineno = entry->lineno;
2886 tree_stack = entry->prev;
2891 push_tree_stack_entry(char *name, unsigned long lineno)
2893 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
2894 size_t pathlen = strlen(opt_path);
2899 entry->prev = tree_stack;
2900 entry->name = opt_path + pathlen;
2903 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
2904 pop_tree_stack_entry();
2908 /* Move the current line to the first tree entry. */
2910 entry->lineno = lineno;
2913 /* Parse output from git-ls-tree(1):
2915 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
2916 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
2917 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
2918 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
2921 #define SIZEOF_TREE_ATTR \
2922 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
2924 #define TREE_UP_FORMAT "040000 tree %s\t.."
2927 tree_compare_entry(enum line_type type1, char *name1,
2928 enum line_type type2, char *name2)
2930 if (type1 != type2) {
2931 if (type1 == LINE_TREE_DIR)
2936 return strcmp(name1, name2);
2940 tree_read(struct view *view, char *text)
2942 size_t textlen = text ? strlen(text) : 0;
2943 char buf[SIZEOF_STR];
2945 enum line_type type;
2946 bool first_read = view->lines == 0;
2948 if (textlen <= SIZEOF_TREE_ATTR)
2951 type = text[STRING_SIZE("100644 ")] == 't'
2952 ? LINE_TREE_DIR : LINE_TREE_FILE;
2955 /* Add path info line */
2956 if (!string_format(buf, "Directory path /%s", opt_path) ||
2957 !realloc_lines(view, view->line_size + 1) ||
2958 !add_line_text(view, buf, LINE_DEFAULT))
2961 /* Insert "link" to parent directory. */
2963 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
2964 !realloc_lines(view, view->line_size + 1) ||
2965 !add_line_text(view, buf, LINE_TREE_DIR))
2970 /* Strip the path part ... */
2972 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
2973 size_t striplen = strlen(opt_path);
2974 char *path = text + SIZEOF_TREE_ATTR;
2976 if (pathlen > striplen)
2977 memmove(path, path + striplen,
2978 pathlen - striplen + 1);
2981 /* Skip "Directory ..." and ".." line. */
2982 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
2983 struct line *line = &view->line[pos];
2984 char *path1 = ((char *) line->data) + SIZEOF_TREE_ATTR;
2985 char *path2 = text + SIZEOF_TREE_ATTR;
2986 int cmp = tree_compare_entry(line->type, path1, type, path2);
2991 text = strdup(text);
2995 if (view->lines > pos)
2996 memmove(&view->line[pos + 1], &view->line[pos],
2997 (view->lines - pos) * sizeof(*line));
2999 line = &view->line[pos];
3006 if (!add_line_text(view, text, type))
3009 if (tree_lineno > view->lineno) {
3010 view->lineno = tree_lineno;
3018 tree_request(struct view *view, enum request request, struct line *line)
3020 enum open_flags flags;
3022 if (request != REQ_ENTER)
3025 /* Cleanup the stack if the tree view is at a different tree. */
3026 while (!*opt_path && tree_stack)
3027 pop_tree_stack_entry();
3029 switch (line->type) {
3031 /* Depending on whether it is a subdir or parent (updir?) link
3032 * mangle the path buffer. */
3033 if (line == &view->line[1] && *opt_path) {
3034 pop_tree_stack_entry();
3037 char *data = line->data;
3038 char *basename = data + SIZEOF_TREE_ATTR;
3040 push_tree_stack_entry(basename, view->lineno);
3043 /* Trees and subtrees share the same ID, so they are not not
3044 * unique like blobs. */
3045 flags = OPEN_RELOAD;
3046 request = REQ_VIEW_TREE;
3049 case LINE_TREE_FILE:
3050 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3051 request = REQ_VIEW_BLOB;
3058 open_view(view, request, flags);
3059 if (request == REQ_VIEW_TREE) {
3060 view->lineno = tree_lineno;
3067 tree_select(struct view *view, struct line *line)
3069 char *text = line->data + STRING_SIZE("100644 blob ");
3071 if (line->type == LINE_TREE_FILE) {
3072 string_copy_rev(ref_blob, text);
3074 } else if (line->type != LINE_TREE_DIR) {
3078 string_copy_rev(view->ref, text);
3081 static struct view_ops tree_ops = {
3092 blob_read(struct view *view, char *line)
3094 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3097 static struct view_ops blob_ops = {
3116 char rev[SIZEOF_REV];
3120 char rev[SIZEOF_REV];
3122 char name[SIZEOF_STR];
3125 static struct status stage_status;
3126 static enum line_type stage_line_type;
3128 /* Get fields from the diff line:
3129 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3132 status_get_diff(struct status *file, char *buf, size_t bufsize)
3134 char *old_mode = buf + 1;
3135 char *new_mode = buf + 8;
3136 char *old_rev = buf + 15;
3137 char *new_rev = buf + 56;
3138 char *status = buf + 97;
3140 if (bufsize != 99 ||
3141 old_mode[-1] != ':' ||
3142 new_mode[-1] != ' ' ||
3143 old_rev[-1] != ' ' ||
3144 new_rev[-1] != ' ' ||
3148 file->status = *status;
3150 string_copy_rev(file->old.rev, old_rev);
3151 string_copy_rev(file->new.rev, new_rev);
3153 file->old.mode = strtoul(old_mode, NULL, 8);
3154 file->new.mode = strtoul(new_mode, NULL, 8);
3162 status_run(struct view *view, const char cmd[], bool diff, enum line_type type)
3164 struct status *file = NULL;
3165 struct status *unmerged = NULL;
3166 char buf[SIZEOF_STR * 4];
3170 pipe = popen(cmd, "r");
3174 add_line_data(view, NULL, type);
3176 while (!feof(pipe) && !ferror(pipe)) {
3180 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3183 bufsize += readsize;
3185 /* Process while we have NUL chars. */
3186 while ((sep = memchr(buf, 0, bufsize))) {
3187 size_t sepsize = sep - buf + 1;
3190 if (!realloc_lines(view, view->line_size + 1))
3193 file = calloc(1, sizeof(*file));
3197 add_line_data(view, file, type);
3200 /* Parse diff info part. */
3204 } else if (!file->status) {
3205 if (!status_get_diff(file, buf, sepsize))
3209 memmove(buf, sep + 1, bufsize);
3211 sep = memchr(buf, 0, bufsize);
3214 sepsize = sep - buf + 1;
3216 /* Collapse all 'M'odified entries that
3217 * follow a associated 'U'nmerged entry.
3219 if (file->status == 'U') {
3222 } else if (unmerged) {
3223 int collapse = !strcmp(buf, unmerged->name);
3234 /* git-ls-files just delivers a NUL separated
3235 * list of file names similar to the second half
3236 * of the git-diff-* output. */
3237 string_ncopy(file->name, buf, sepsize);
3239 memmove(buf, sep + 1, bufsize);
3250 if (!view->line[view->lines - 1].data)
3251 add_line_data(view, NULL, LINE_STAT_NONE);
3257 /* Don't show unmerged entries in the staged section. */
3258 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached HEAD"
3259 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
3260 #define STATUS_LIST_OTHER_CMD \
3261 "git ls-files -z --others --exclude-per-directory=.gitignore"
3263 #define STATUS_DIFF_SHOW_CMD \
3264 "git diff --no-color --root --patch-with-stat --find-copies-harder -B -C %s -- %s 2>/dev/null"
3266 /* First parse staged info using git-diff-index(1), then parse unstaged
3267 * info using git-diff-files(1), and finally untracked files using
3268 * git-ls-files(1). */
3270 status_open(struct view *view)
3272 struct stat statbuf;
3273 char exclude[SIZEOF_STR];
3274 char cmd[SIZEOF_STR];
3275 unsigned long prev_lineno = view->lineno;
3278 for (i = 0; i < view->lines; i++)
3279 free(view->line[i].data);
3281 view->lines = view->line_size = view->lineno = 0;
3284 if (!realloc_lines(view, view->line_size + 6))
3287 if (!string_format(exclude, "%s/info/exclude", opt_git_dir))
3290 string_copy(cmd, STATUS_LIST_OTHER_CMD);
3292 if (stat(exclude, &statbuf) >= 0) {
3293 size_t cmdsize = strlen(cmd);
3295 if (!string_format_from(cmd, &cmdsize, " %s", "--exclude-from=") ||
3296 sq_quote(cmd, cmdsize, exclude) >= sizeof(cmd))
3300 if (!status_run(view, STATUS_DIFF_INDEX_CMD, TRUE, LINE_STAT_STAGED) ||
3301 !status_run(view, STATUS_DIFF_FILES_CMD, TRUE, LINE_STAT_UNSTAGED) ||
3302 !status_run(view, cmd, FALSE, LINE_STAT_UNTRACKED))
3305 /* If all went well restore the previous line number to stay in
3307 if (prev_lineno < view->lines)
3308 view->lineno = prev_lineno;
3310 view->lineno = view->lines - 1;
3316 status_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
3318 struct status *status = line->data;
3320 wmove(view->win, lineno, 0);
3323 wattrset(view->win, get_line_attr(LINE_CURSOR));
3324 wchgat(view->win, -1, 0, LINE_CURSOR, NULL);
3326 } else if (!status && line->type != LINE_STAT_NONE) {
3327 wattrset(view->win, get_line_attr(LINE_STAT_SECTION));
3328 wchgat(view->win, -1, 0, LINE_STAT_SECTION, NULL);
3331 wattrset(view->win, get_line_attr(line->type));
3337 switch (line->type) {
3338 case LINE_STAT_STAGED:
3339 text = "Changes to be committed:";
3342 case LINE_STAT_UNSTAGED:
3343 text = "Changed but not updated:";
3346 case LINE_STAT_UNTRACKED:
3347 text = "Untracked files:";
3350 case LINE_STAT_NONE:
3351 text = " (no files)";
3358 waddstr(view->win, text);
3362 waddch(view->win, status->status);
3364 wattrset(view->win, A_NORMAL);
3365 wmove(view->win, lineno, 4);
3366 waddstr(view->win, status->name);
3372 status_enter(struct view *view, struct line *line)
3374 struct status *status = line->data;
3375 char path[SIZEOF_STR] = "";
3379 if (line->type == LINE_STAT_NONE ||
3380 (!status && line[1].type == LINE_STAT_NONE)) {
3381 report("No file to diff");
3385 if (status && sq_quote(path, 0, status->name) >= sizeof(path))
3389 line->type != LINE_STAT_UNTRACKED &&
3390 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
3393 switch (line->type) {
3394 case LINE_STAT_STAGED:
3395 if (!string_format_from(opt_cmd, &cmdsize, STATUS_DIFF_SHOW_CMD,
3399 info = "Staged changes to %s";
3401 info = "Staged changes";
3404 case LINE_STAT_UNSTAGED:
3405 if (!string_format_from(opt_cmd, &cmdsize, STATUS_DIFF_SHOW_CMD,
3409 info = "Unstaged changes to %s";
3411 info = "Unstaged changes";
3414 case LINE_STAT_UNTRACKED:
3420 report("No file to show");
3424 opt_pipe = fopen(status->name, "r");
3425 info = "Untracked file %s";
3429 die("line type %d not handled in switch", line->type);
3432 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | OPEN_SPLIT);
3433 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
3435 stage_status = *status;
3437 memset(&stage_status, 0, sizeof(stage_status));
3440 stage_line_type = line->type;
3441 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.name);
3449 status_update_file(struct view *view, struct status *status, enum line_type type)
3451 char cmd[SIZEOF_STR];
3452 char buf[SIZEOF_STR];
3459 type != LINE_STAT_UNTRACKED &&
3460 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
3464 case LINE_STAT_STAGED:
3465 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
3471 string_add(cmd, cmdsize, "git update-index -z --index-info");
3474 case LINE_STAT_UNSTAGED:
3475 case LINE_STAT_UNTRACKED:
3476 if (!string_format_from(buf, &bufsize, "%s%c", status->name, 0))
3479 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
3483 die("line type %d not handled in switch", type);
3486 pipe = popen(cmd, "w");
3490 while (!ferror(pipe) && written < bufsize) {
3491 written += fwrite(buf + written, 1, bufsize - written, pipe);
3496 if (written != bufsize)
3503 status_update(struct view *view)
3505 struct line *line = &view->line[view->lineno];
3507 assert(view->lines);
3510 while (++line < view->line + view->lines && line->data) {
3511 if (!status_update_file(view, line->data, line->type))
3512 report("Failed to update file status");
3515 if (!line[-1].data) {
3516 report("Nothing to update");
3520 } else if (!status_update_file(view, line->data, line->type)) {
3521 report("Failed to update file status");
3526 status_request(struct view *view, enum request request, struct line *line)
3528 struct status *status = line->data;
3531 case REQ_STATUS_UPDATE:
3532 status_update(view);
3535 case REQ_STATUS_MERGE:
3536 if (!status || status->status != 'U') {
3537 report("Merging only possible for files with unmerged status ('U').");
3540 open_mergetool(status->name);
3547 open_editor(status->status != '?', status->name);
3551 /* After returning the status view has been split to
3552 * show the stage view. No further reloading is
3554 status_enter(view, line);
3558 /* Simply reload the view. */
3565 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
3571 status_select(struct view *view, struct line *line)
3573 struct status *status = line->data;
3574 char file[SIZEOF_STR] = "all files";
3578 if (status && !string_format(file, "'%s'", status->name))
3581 if (!status && line[1].type == LINE_STAT_NONE)
3584 switch (line->type) {
3585 case LINE_STAT_STAGED:
3586 text = "Press %s to unstage %s for commit";
3589 case LINE_STAT_UNSTAGED:
3590 text = "Press %s to stage %s for commit";
3593 case LINE_STAT_UNTRACKED:
3594 text = "Press %s to stage %s for addition";
3597 case LINE_STAT_NONE:
3598 text = "Nothing to update";
3602 die("line type %d not handled in switch", line->type);
3605 if (status && status->status == 'U') {
3606 text = "Press %s to resolve conflict in %s";
3607 key = get_key(REQ_STATUS_MERGE);
3610 key = get_key(REQ_STATUS_UPDATE);
3613 string_format(view->ref, text, key, file);
3617 status_grep(struct view *view, struct line *line)
3619 struct status *status = line->data;
3620 enum { S_STATUS, S_NAME, S_END } state;
3627 for (state = S_STATUS; state < S_END; state++) {
3631 case S_NAME: text = status->name; break;
3633 buf[0] = status->status;
3641 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3648 static struct view_ops status_ops = {
3660 stage_diff_line(FILE *pipe, struct line *line)
3662 char *buf = line->data;
3663 size_t bufsize = strlen(buf);
3666 while (!ferror(pipe) && written < bufsize) {
3667 written += fwrite(buf + written, 1, bufsize - written, pipe);
3672 return written == bufsize;
3675 static struct line *
3676 stage_diff_hdr(struct view *view, struct line *line)
3678 int diff_hdr_dir = line->type == LINE_DIFF_CHUNK ? -1 : 1;
3679 struct line *diff_hdr;
3681 if (line->type == LINE_DIFF_CHUNK)
3682 diff_hdr = line - 1;
3684 diff_hdr = view->line + 1;
3686 while (diff_hdr > view->line && diff_hdr < view->line + view->lines) {
3687 if (diff_hdr->type == LINE_DIFF_HEADER)
3690 diff_hdr += diff_hdr_dir;
3697 stage_update_chunk(struct view *view, struct line *line)
3699 char cmd[SIZEOF_STR];
3701 struct line *diff_hdr, *diff_chunk, *diff_end;
3704 diff_hdr = stage_diff_hdr(view, line);
3709 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
3712 if (!string_format_from(cmd, &cmdsize,
3713 "git apply --cached %s - && "
3714 "git update-index -q --unmerged --refresh 2>/dev/null",
3715 stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
3718 pipe = popen(cmd, "w");
3722 diff_end = view->line + view->lines;
3723 if (line->type != LINE_DIFF_CHUNK) {
3724 diff_chunk = diff_hdr;
3727 for (diff_chunk = line + 1; diff_chunk < diff_end; diff_chunk++)
3728 if (diff_chunk->type == LINE_DIFF_CHUNK ||
3729 diff_chunk->type == LINE_DIFF_HEADER)
3730 diff_end = diff_chunk;
3734 while (diff_hdr->type != LINE_DIFF_CHUNK) {
3735 switch (diff_hdr->type) {
3736 case LINE_DIFF_HEADER:
3737 case LINE_DIFF_INDEX:
3747 if (!stage_diff_line(pipe, diff_hdr++)) {
3754 while (diff_chunk < diff_end && stage_diff_line(pipe, diff_chunk))
3759 if (diff_chunk != diff_end)
3766 stage_update(struct view *view, struct line *line)
3768 if (stage_line_type != LINE_STAT_UNTRACKED &&
3769 (line->type == LINE_DIFF_CHUNK || !stage_status.status)) {
3770 if (!stage_update_chunk(view, line)) {
3771 report("Failed to apply chunk");
3775 } else if (!status_update_file(view, &stage_status, stage_line_type)) {
3776 report("Failed to update file");
3780 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
3782 view = VIEW(REQ_VIEW_STATUS);
3783 if (view_is_displayed(view))
3784 status_enter(view, &view->line[view->lineno]);
3788 stage_request(struct view *view, enum request request, struct line *line)
3791 case REQ_STATUS_UPDATE:
3792 stage_update(view, line);
3796 if (!stage_status.name[0])
3799 open_editor(stage_status.status != '?', stage_status.name);
3803 pager_request(view, request, line);
3813 static struct view_ops stage_ops = {
3829 char id[SIZEOF_REV]; /* SHA1 ID. */
3830 char title[128]; /* First line of the commit message. */
3831 char author[75]; /* Author of the commit. */
3832 struct tm time; /* Date from the author ident. */
3833 struct ref **refs; /* Repository references. */
3834 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
3835 size_t graph_size; /* The width of the graph array. */
3838 /* Size of rev graph with no "padding" columns */
3839 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
3842 struct rev_graph *prev, *next, *parents;
3843 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
3845 struct commit *commit;
3849 /* Parents of the commit being visualized. */
3850 static struct rev_graph graph_parents[4];
3852 /* The current stack of revisions on the graph. */
3853 static struct rev_graph graph_stacks[4] = {
3854 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
3855 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
3856 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
3857 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
3861 graph_parent_is_merge(struct rev_graph *graph)
3863 return graph->parents->size > 1;
3867 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
3869 struct commit *commit = graph->commit;
3871 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
3872 commit->graph[commit->graph_size++] = symbol;
3876 done_rev_graph(struct rev_graph *graph)
3878 if (graph_parent_is_merge(graph) &&
3879 graph->pos < graph->size - 1 &&
3880 graph->next->size == graph->size + graph->parents->size - 1) {
3881 size_t i = graph->pos + graph->parents->size - 1;
3883 graph->commit->graph_size = i * 2;
3884 while (i < graph->next->size - 1) {
3885 append_to_rev_graph(graph, ' ');
3886 append_to_rev_graph(graph, '\\');
3891 graph->size = graph->pos = 0;
3892 graph->commit = NULL;
3893 memset(graph->parents, 0, sizeof(*graph->parents));
3897 push_rev_graph(struct rev_graph *graph, char *parent)
3901 /* "Collapse" duplicate parents lines.
3903 * FIXME: This needs to also update update the drawn graph but
3904 * for now it just serves as a method for pruning graph lines. */
3905 for (i = 0; i < graph->size; i++)
3906 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
3909 if (graph->size < SIZEOF_REVITEMS) {
3910 string_copy_rev(graph->rev[graph->size++], parent);
3915 get_rev_graph_symbol(struct rev_graph *graph)
3919 if (graph->parents->size == 0)
3920 symbol = REVGRAPH_INIT;
3921 else if (graph_parent_is_merge(graph))
3922 symbol = REVGRAPH_MERGE;
3923 else if (graph->pos >= graph->size)
3924 symbol = REVGRAPH_BRANCH;
3926 symbol = REVGRAPH_COMMIT;
3932 draw_rev_graph(struct rev_graph *graph)
3935 chtype separator, line;
3937 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
3938 static struct rev_filler fillers[] = {
3939 { ' ', REVGRAPH_LINE },
3944 chtype symbol = get_rev_graph_symbol(graph);
3945 struct rev_filler *filler;
3948 filler = &fillers[DEFAULT];
3950 for (i = 0; i < graph->pos; i++) {
3951 append_to_rev_graph(graph, filler->line);
3952 if (graph_parent_is_merge(graph->prev) &&
3953 graph->prev->pos == i)
3954 filler = &fillers[RSHARP];
3956 append_to_rev_graph(graph, filler->separator);
3959 /* Place the symbol for this revision. */
3960 append_to_rev_graph(graph, symbol);
3962 if (graph->prev->size > graph->size)
3963 filler = &fillers[RDIAG];
3965 filler = &fillers[DEFAULT];
3969 for (; i < graph->size; i++) {
3970 append_to_rev_graph(graph, filler->separator);
3971 append_to_rev_graph(graph, filler->line);
3972 if (graph_parent_is_merge(graph->prev) &&
3973 i < graph->prev->pos + graph->parents->size)
3974 filler = &fillers[RSHARP];
3975 if (graph->prev->size > graph->size)
3976 filler = &fillers[LDIAG];
3979 if (graph->prev->size > graph->size) {
3980 append_to_rev_graph(graph, filler->separator);
3981 if (filler->line != ' ')
3982 append_to_rev_graph(graph, filler->line);
3986 /* Prepare the next rev graph */
3988 prepare_rev_graph(struct rev_graph *graph)
3992 /* First, traverse all lines of revisions up to the active one. */
3993 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
3994 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
3997 push_rev_graph(graph->next, graph->rev[graph->pos]);
4000 /* Interleave the new revision parent(s). */
4001 for (i = 0; i < graph->parents->size; i++)
4002 push_rev_graph(graph->next, graph->parents->rev[i]);
4004 /* Lastly, put any remaining revisions. */
4005 for (i = graph->pos + 1; i < graph->size; i++)
4006 push_rev_graph(graph->next, graph->rev[i]);
4010 update_rev_graph(struct rev_graph *graph)
4012 /* If this is the finalizing update ... */
4014 prepare_rev_graph(graph);
4016 /* Graph visualization needs a one rev look-ahead,
4017 * so the first update doesn't visualize anything. */
4018 if (!graph->prev->commit)
4021 draw_rev_graph(graph->prev);
4022 done_rev_graph(graph->prev->prev);
4031 main_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
4033 char buf[DATE_COLS + 1];
4034 struct commit *commit = line->data;
4035 enum line_type type;
4041 if (!*commit->author)
4044 wmove(view->win, lineno, col);
4048 wattrset(view->win, get_line_attr(type));
4049 wchgat(view->win, -1, 0, type, NULL);
4052 type = LINE_MAIN_COMMIT;
4053 wattrset(view->win, get_line_attr(LINE_MAIN_DATE));
4056 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time);
4057 waddnstr(view->win, buf, timelen);
4058 waddstr(view->win, " ");
4061 wmove(view->win, lineno, col);
4062 if (type != LINE_CURSOR)
4063 wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR));
4066 authorlen = utf8_length(commit->author, AUTHOR_COLS - 2, &col, &trimmed);
4068 authorlen = strlen(commit->author);
4069 if (authorlen > AUTHOR_COLS - 2) {
4070 authorlen = AUTHOR_COLS - 2;
4076 waddnstr(view->win, commit->author, authorlen);
4077 if (type != LINE_CURSOR)
4078 wattrset(view->win, get_line_attr(LINE_MAIN_DELIM));
4079 waddch(view->win, '~');
4081 waddstr(view->win, commit->author);
4085 if (type != LINE_CURSOR)
4086 wattrset(view->win, A_NORMAL);
4088 if (opt_rev_graph && commit->graph_size) {
4091 wmove(view->win, lineno, col);
4092 /* Using waddch() instead of waddnstr() ensures that
4093 * they'll be rendered correctly for the cursor line. */
4094 for (i = 0; i < commit->graph_size; i++)
4095 waddch(view->win, commit->graph[i]);
4097 waddch(view->win, ' ');
4098 col += commit->graph_size + 1;
4101 wmove(view->win, lineno, col);
4107 if (type == LINE_CURSOR)
4109 else if (commit->refs[i]->tag)
4110 wattrset(view->win, get_line_attr(LINE_MAIN_TAG));
4111 else if (commit->refs[i]->remote)
4112 wattrset(view->win, get_line_attr(LINE_MAIN_REMOTE));
4114 wattrset(view->win, get_line_attr(LINE_MAIN_REF));
4115 waddstr(view->win, "[");
4116 waddstr(view->win, commit->refs[i]->name);
4117 waddstr(view->win, "]");
4118 if (type != LINE_CURSOR)
4119 wattrset(view->win, A_NORMAL);
4120 waddstr(view->win, " ");
4121 col += strlen(commit->refs[i]->name) + STRING_SIZE("[] ");
4122 } while (commit->refs[i++]->next);
4125 if (type != LINE_CURSOR)
4126 wattrset(view->win, get_line_attr(type));
4129 int titlelen = strlen(commit->title);
4131 if (col + titlelen > view->width)
4132 titlelen = view->width - col;
4134 waddnstr(view->win, commit->title, titlelen);
4140 /* Reads git log --pretty=raw output and parses it into the commit struct. */
4142 main_read(struct view *view, char *line)
4144 static struct rev_graph *graph = graph_stacks;
4145 enum line_type type;
4146 struct commit *commit;
4149 update_rev_graph(graph);
4153 type = get_line_type(line);
4154 if (type == LINE_COMMIT) {
4155 commit = calloc(1, sizeof(struct commit));
4159 string_copy_rev(commit->id, line + STRING_SIZE("commit "));
4160 commit->refs = get_refs(commit->id);
4161 graph->commit = commit;
4162 add_line_data(view, commit, LINE_MAIN_COMMIT);
4168 commit = view->line[view->lines - 1].data;
4172 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
4177 /* Parse author lines where the name may be empty:
4178 * author <email@address.tld> 1138474660 +0100
4180 char *ident = line + STRING_SIZE("author ");
4181 char *nameend = strchr(ident, '<');
4182 char *emailend = strchr(ident, '>');
4184 if (!nameend || !emailend)
4187 update_rev_graph(graph);
4188 graph = graph->next;
4190 *nameend = *emailend = 0;
4191 ident = chomp_string(ident);
4193 ident = chomp_string(nameend + 1);
4198 string_ncopy(commit->author, ident, strlen(ident));
4200 /* Parse epoch and timezone */
4201 if (emailend[1] == ' ') {
4202 char *secs = emailend + 2;
4203 char *zone = strchr(secs, ' ');
4204 time_t time = (time_t) atol(secs);
4206 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
4210 tz = ('0' - zone[1]) * 60 * 60 * 10;
4211 tz += ('0' - zone[2]) * 60 * 60;
4212 tz += ('0' - zone[3]) * 60;
4213 tz += ('0' - zone[4]) * 60;
4221 gmtime_r(&time, &commit->time);
4226 /* Fill in the commit title if it has not already been set. */
4227 if (commit->title[0])
4230 /* Require titles to start with a non-space character at the
4231 * offset used by git log. */
4232 if (strncmp(line, " ", 4))
4235 /* Well, if the title starts with a whitespace character,
4236 * try to be forgiving. Otherwise we end up with no title. */
4237 while (isspace(*line))
4241 /* FIXME: More graceful handling of titles; append "..." to
4242 * shortened titles, etc. */
4244 string_ncopy(commit->title, line, strlen(line));
4251 main_request(struct view *view, enum request request, struct line *line)
4253 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4255 if (request == REQ_ENTER)
4256 open_view(view, REQ_VIEW_DIFF, flags);
4264 main_grep(struct view *view, struct line *line)
4266 struct commit *commit = line->data;
4267 enum { S_TITLE, S_AUTHOR, S_DATE, S_END } state;
4268 char buf[DATE_COLS + 1];
4271 for (state = S_TITLE; state < S_END; state++) {
4275 case S_TITLE: text = commit->title; break;
4276 case S_AUTHOR: text = commit->author; break;
4278 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
4287 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4295 main_select(struct view *view, struct line *line)
4297 struct commit *commit = line->data;
4299 string_copy_rev(view->ref, commit->id);
4300 string_copy_rev(ref_commit, view->ref);
4303 static struct view_ops main_ops = {
4315 * Unicode / UTF-8 handling
4317 * NOTE: Much of the following code for dealing with unicode is derived from
4318 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
4319 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
4322 /* I've (over)annotated a lot of code snippets because I am not entirely
4323 * confident that the approach taken by this small UTF-8 interface is correct.
4327 unicode_width(unsigned long c)
4330 (c <= 0x115f /* Hangul Jamo */
4333 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
4335 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
4336 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
4337 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
4338 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
4339 || (c >= 0xffe0 && c <= 0xffe6)
4340 || (c >= 0x20000 && c <= 0x2fffd)
4341 || (c >= 0x30000 && c <= 0x3fffd)))
4347 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
4348 * Illegal bytes are set one. */
4349 static const unsigned char utf8_bytes[256] = {
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 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,
4352 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,
4353 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,
4354 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,
4355 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,
4356 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,
4357 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,
4360 /* Decode UTF-8 multi-byte representation into a unicode character. */
4361 static inline unsigned long
4362 utf8_to_unicode(const char *string, size_t length)
4364 unsigned long unicode;
4368 unicode = string[0];
4371 unicode = (string[0] & 0x1f) << 6;
4372 unicode += (string[1] & 0x3f);
4375 unicode = (string[0] & 0x0f) << 12;
4376 unicode += ((string[1] & 0x3f) << 6);
4377 unicode += (string[2] & 0x3f);
4380 unicode = (string[0] & 0x0f) << 18;
4381 unicode += ((string[1] & 0x3f) << 12);
4382 unicode += ((string[2] & 0x3f) << 6);
4383 unicode += (string[3] & 0x3f);
4386 unicode = (string[0] & 0x0f) << 24;
4387 unicode += ((string[1] & 0x3f) << 18);
4388 unicode += ((string[2] & 0x3f) << 12);
4389 unicode += ((string[3] & 0x3f) << 6);
4390 unicode += (string[4] & 0x3f);
4393 unicode = (string[0] & 0x01) << 30;
4394 unicode += ((string[1] & 0x3f) << 24);
4395 unicode += ((string[2] & 0x3f) << 18);
4396 unicode += ((string[3] & 0x3f) << 12);
4397 unicode += ((string[4] & 0x3f) << 6);
4398 unicode += (string[5] & 0x3f);
4401 die("Invalid unicode length");
4404 /* Invalid characters could return the special 0xfffd value but NUL
4405 * should be just as good. */
4406 return unicode > 0xffff ? 0 : unicode;
4409 /* Calculates how much of string can be shown within the given maximum width
4410 * and sets trimmed parameter to non-zero value if all of string could not be
4413 * Additionally, adds to coloffset how many many columns to move to align with
4414 * the expected position. Takes into account how multi-byte and double-width
4415 * characters will effect the cursor position.
4417 * Returns the number of bytes to output from string to satisfy max_width. */
4419 utf8_length(const char *string, size_t max_width, int *coloffset, int *trimmed)
4421 const char *start = string;
4422 const char *end = strchr(string, '\0');
4428 while (string < end) {
4429 int c = *(unsigned char *) string;
4430 unsigned char bytes = utf8_bytes[c];
4432 unsigned long unicode;
4434 if (string + bytes > end)
4437 /* Change representation to figure out whether
4438 * it is a single- or double-width character. */
4440 unicode = utf8_to_unicode(string, bytes);
4441 /* FIXME: Graceful handling of invalid unicode character. */
4445 ucwidth = unicode_width(unicode);
4447 if (width > max_width) {
4452 /* The column offset collects the differences between the
4453 * number of bytes encoding a character and the number of
4454 * columns will be used for rendering said character.
4456 * So if some character A is encoded in 2 bytes, but will be
4457 * represented on the screen using only 1 byte this will and up
4458 * adding 1 to the multi-byte column offset.
4460 * Assumes that no double-width character can be encoding in
4461 * less than two bytes. */
4462 if (bytes > ucwidth)
4463 mbwidth += bytes - ucwidth;
4468 *coloffset += mbwidth;
4470 return string - start;
4478 /* Whether or not the curses interface has been initialized. */
4479 static bool cursed = FALSE;
4481 /* The status window is used for polling keystrokes. */
4482 static WINDOW *status_win;
4484 static bool status_empty = TRUE;
4486 /* Update status and title window. */
4488 report(const char *msg, ...)
4490 struct view *view = display[current_view];
4496 char buf[SIZEOF_STR];
4499 va_start(args, msg);
4500 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
4501 buf[sizeof(buf) - 1] = 0;
4502 buf[sizeof(buf) - 2] = '.';
4503 buf[sizeof(buf) - 3] = '.';
4504 buf[sizeof(buf) - 4] = '.';
4510 if (!status_empty || *msg) {
4513 va_start(args, msg);
4515 wmove(status_win, 0, 0);
4517 vwprintw(status_win, msg, args);
4518 status_empty = FALSE;
4520 status_empty = TRUE;
4522 wclrtoeol(status_win);
4523 wrefresh(status_win);
4528 update_view_title(view);
4529 update_display_cursor(view);
4532 /* Controls when nodelay should be in effect when polling user input. */
4534 set_nonblocking_input(bool loading)
4536 static unsigned int loading_views;
4538 if ((loading == FALSE && loading_views-- == 1) ||
4539 (loading == TRUE && loading_views++ == 0))
4540 nodelay(status_win, loading);
4548 /* Initialize the curses library */
4549 if (isatty(STDIN_FILENO)) {
4550 cursed = !!initscr();
4552 /* Leave stdin and stdout alone when acting as a pager. */
4553 FILE *io = fopen("/dev/tty", "r+");
4556 die("Failed to open /dev/tty");
4557 cursed = !!newterm(NULL, io, io);
4561 die("Failed to initialize curses");
4563 nonl(); /* Tell curses not to do NL->CR/NL on output */
4564 cbreak(); /* Take input chars one at a time, no wait for \n */
4565 noecho(); /* Don't echo input */
4566 leaveok(stdscr, TRUE);
4571 getmaxyx(stdscr, y, x);
4572 status_win = newwin(1, 0, y - 1, 0);
4574 die("Failed to create status window");
4576 /* Enable keyboard mapping */
4577 keypad(status_win, TRUE);
4578 wbkgdset(status_win, get_line_attr(LINE_STATUS));
4582 read_prompt(const char *prompt)
4584 enum { READING, STOP, CANCEL } status = READING;
4585 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
4588 while (status == READING) {
4594 foreach_view (view, i)
4599 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
4600 wclrtoeol(status_win);
4602 /* Refresh, accept single keystroke of input */
4603 key = wgetch(status_win);
4608 status = pos ? STOP : CANCEL;
4626 if (pos >= sizeof(buf)) {
4627 report("Input string too long");
4632 buf[pos++] = (char) key;
4636 /* Clear the status window */
4637 status_empty = FALSE;
4640 if (status == CANCEL)
4649 * Repository references
4652 static struct ref *refs;
4653 static size_t refs_size;
4655 /* Id <-> ref store */
4656 static struct ref ***id_refs;
4657 static size_t id_refs_size;
4659 static struct ref **
4662 struct ref ***tmp_id_refs;
4663 struct ref **ref_list = NULL;
4664 size_t ref_list_size = 0;
4667 for (i = 0; i < id_refs_size; i++)
4668 if (!strcmp(id, id_refs[i][0]->id))
4671 tmp_id_refs = realloc(id_refs, (id_refs_size + 1) * sizeof(*id_refs));
4675 id_refs = tmp_id_refs;
4677 for (i = 0; i < refs_size; i++) {
4680 if (strcmp(id, refs[i].id))
4683 tmp = realloc(ref_list, (ref_list_size + 1) * sizeof(*ref_list));
4691 if (ref_list_size > 0)
4692 ref_list[ref_list_size - 1]->next = 1;
4693 ref_list[ref_list_size] = &refs[i];
4695 /* XXX: The properties of the commit chains ensures that we can
4696 * safely modify the shared ref. The repo references will
4697 * always be similar for the same id. */
4698 ref_list[ref_list_size]->next = 0;
4703 id_refs[id_refs_size++] = ref_list;
4709 read_ref(char *id, size_t idlen, char *name, size_t namelen)
4713 bool remote = FALSE;
4715 if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) {
4716 /* Commits referenced by tags has "^{}" appended. */
4717 if (name[namelen - 1] != '}')
4720 while (namelen > 0 && name[namelen] != '^')
4724 namelen -= STRING_SIZE("refs/tags/");
4725 name += STRING_SIZE("refs/tags/");
4727 } else if (!strncmp(name, "refs/remotes/", STRING_SIZE("refs/remotes/"))) {
4729 namelen -= STRING_SIZE("refs/remotes/");
4730 name += STRING_SIZE("refs/remotes/");
4732 } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
4733 namelen -= STRING_SIZE("refs/heads/");
4734 name += STRING_SIZE("refs/heads/");
4736 } else if (!strcmp(name, "HEAD")) {
4740 refs = realloc(refs, sizeof(*refs) * (refs_size + 1));
4744 ref = &refs[refs_size++];
4745 ref->name = malloc(namelen + 1);
4749 strncpy(ref->name, name, namelen);
4750 ref->name[namelen] = 0;
4752 ref->remote = remote;
4753 string_copy_rev(ref->id, id);
4761 const char *cmd_env = getenv("TIG_LS_REMOTE");
4762 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
4764 return read_properties(popen(cmd, "r"), "\t", read_ref);
4768 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
4770 if (!strcmp(name, "i18n.commitencoding"))
4771 string_ncopy(opt_encoding, value, valuelen);
4773 if (!strcmp(name, "core.editor"))
4774 string_ncopy(opt_editor, value, valuelen);
4780 load_repo_config(void)
4782 return read_properties(popen(GIT_CONFIG " --list", "r"),
4783 "=", read_repo_config_option);
4787 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
4789 if (!opt_git_dir[0]) {
4790 string_ncopy(opt_git_dir, name, namelen);
4792 } else if (opt_is_inside_work_tree == -1) {
4793 /* This can be 3 different values depending on the
4794 * version of git being used. If git-rev-parse does not
4795 * understand --is-inside-work-tree it will simply echo
4796 * the option else either "true" or "false" is printed.
4797 * Default to true for the unknown case. */
4798 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
4801 string_ncopy(opt_cdup, name, namelen);
4807 /* XXX: The line outputted by "--show-cdup" can be empty so the option
4808 * must be the last one! */
4810 load_repo_info(void)
4812 return read_properties(popen("git rev-parse --git-dir --is-inside-work-tree --show-cdup 2>/dev/null", "r"),
4813 "=", read_repo_info);
4817 read_properties(FILE *pipe, const char *separators,
4818 int (*read_property)(char *, size_t, char *, size_t))
4820 char buffer[BUFSIZ];
4827 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
4832 name = chomp_string(name);
4833 namelen = strcspn(name, separators);
4835 if (name[namelen]) {
4837 value = chomp_string(name + namelen + 1);
4838 valuelen = strlen(value);
4845 state = read_property(name, namelen, value, valuelen);
4848 if (state != ERR && ferror(pipe))
4861 static void __NORETURN
4864 /* XXX: Restore tty modes and let the OS cleanup the rest! */
4870 static void __NORETURN
4871 die(const char *err, ...)
4877 va_start(args, err);
4878 fputs("tig: ", stderr);
4879 vfprintf(stderr, err, args);
4880 fputs("\n", stderr);
4887 main(int argc, char *argv[])
4890 enum request request;
4893 signal(SIGINT, quit);
4895 if (setlocale(LC_ALL, "")) {
4896 char *codeset = nl_langinfo(CODESET);
4898 string_ncopy(opt_codeset, codeset, strlen(codeset));
4901 if (load_repo_info() == ERR)
4902 die("Failed to load repo info.");
4904 if (load_options() == ERR)
4905 die("Failed to load user config.");
4907 /* Load the repo config file so options can be overwritten from
4908 * the command line. */
4909 if (load_repo_config() == ERR)
4910 die("Failed to load repo config.");
4912 if (!parse_options(argc, argv))
4915 /* Require a git repository unless when running in pager mode. */
4916 if (!opt_git_dir[0])
4917 die("Not a git repository");
4919 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
4920 opt_iconv = iconv_open(opt_codeset, opt_encoding);
4921 if (opt_iconv == ICONV_NONE)
4922 die("Failed to initialize character set conversion");
4925 if (load_refs() == ERR)
4926 die("Failed to load refs.");
4928 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
4929 view->cmd_env = getenv(view->cmd_env);
4931 request = opt_request;
4935 while (view_driver(display[current_view], request)) {
4939 foreach_view (view, i)
4942 /* Refresh, accept single keystroke of input */
4943 key = wgetch(status_win);
4945 /* wgetch() with nodelay() enabled returns ERR when there's no
4952 request = get_keybinding(display[current_view]->keymap, key);
4954 /* Some low-level request handling. This keeps access to
4955 * status_win restricted. */
4959 char *cmd = read_prompt(":");
4961 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
4962 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
4963 opt_request = REQ_VIEW_DIFF;
4965 opt_request = REQ_VIEW_PAGER;
4974 case REQ_SEARCH_BACK:
4976 const char *prompt = request == REQ_SEARCH
4978 char *search = read_prompt(prompt);
4981 string_ncopy(opt_search, search, strlen(search));
4986 case REQ_SCREEN_RESIZE:
4990 getmaxyx(stdscr, height, width);
4992 /* Resize the status view and let the view driver take
4993 * care of resizing the displayed views. */
4994 wresize(status_win, 1, width);
4995 mvwin(status_win, height - 1, 0);
4996 wrefresh(status_win);