1 /* Copyright (c) 2006-2008 Jonas Fonseca <fonseca@diku.dk>
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License as
5 * published by the Free Software Foundation; either version 2 of
6 * the License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
19 #define TIG_VERSION "unknown-version"
34 #include <sys/types.h>
45 /* ncurses(3): Must be defined to have extended wide-character functions. */
46 #define _XOPEN_SOURCE_EXTENDED
51 #define __NORETURN __attribute__((__noreturn__))
56 static void __NORETURN die(const char *err, ...);
57 static void warn(const char *msg, ...);
58 static void report(const char *msg, ...);
59 static int read_properties(FILE *pipe, const char *separators, int (*read)(char *, size_t, char *, size_t));
60 static void set_nonblocking_input(bool loading);
61 static size_t utf8_length(const char *string, size_t max_width, int *trimmed, bool reserve);
63 #define ABS(x) ((x) >= 0 ? (x) : -(x))
64 #define MIN(x, y) ((x) < (y) ? (x) : (y))
66 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
67 #define STRING_SIZE(x) (sizeof(x) - 1)
69 #define SIZEOF_STR 1024 /* Default string size. */
70 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
71 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL */
75 #define REVGRAPH_INIT 'I'
76 #define REVGRAPH_MERGE 'M'
77 #define REVGRAPH_BRANCH '+'
78 #define REVGRAPH_COMMIT '*'
79 #define REVGRAPH_BOUND '^'
80 #define REVGRAPH_LINE '|'
82 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
84 /* This color name can be used to refer to the default term colors. */
85 #define COLOR_DEFAULT (-1)
87 #define ICONV_NONE ((iconv_t) -1)
89 #define ICONV_CONST /* nothing */
92 /* The format and size of the date column in the main view. */
93 #define DATE_FORMAT "%Y-%m-%d %H:%M"
94 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
96 #define AUTHOR_COLS 20
99 /* The default interval between line numbers. */
100 #define NUMBER_INTERVAL 5
104 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
106 #define NULL_ID "0000000000000000000000000000000000000000"
109 #define GIT_CONFIG "git config"
112 #define TIG_LS_REMOTE \
113 "git ls-remote $(git rev-parse --git-dir) 2>/dev/null"
115 #define TIG_DIFF_CMD \
116 "git show --pretty=fuller --no-color --root --patch-with-stat --find-copies-harder -C %s 2>/dev/null"
118 #define TIG_LOG_CMD \
119 "git log --no-color --cc --stat -n100 %s 2>/dev/null"
121 #define TIG_MAIN_CMD \
122 "git log --no-color --topo-order --parents --boundary --pretty=raw %s 2>/dev/null"
124 #define TIG_TREE_CMD \
127 #define TIG_BLOB_CMD \
128 "git cat-file blob %s"
130 /* XXX: Needs to be defined to the empty string. */
131 #define TIG_HELP_CMD ""
132 #define TIG_PAGER_CMD ""
133 #define TIG_STATUS_CMD ""
134 #define TIG_STAGE_CMD ""
135 #define TIG_BLAME_CMD ""
137 /* Some ascii-shorthands fitted into the ncurses namespace. */
139 #define KEY_RETURN '\r'
144 char *name; /* Ref name; tag or head names are shortened. */
145 char id[SIZEOF_REV]; /* Commit SHA1 ID */
146 unsigned int tag:1; /* Is it a tag? */
147 unsigned int ltag:1; /* If so, is the tag local? */
148 unsigned int remote:1; /* Is it a remote ref? */
149 unsigned int next:1; /* For ref lists: are there more refs? */
150 unsigned int head:1; /* Is it the current HEAD? */
153 static struct ref **get_refs(char *id);
162 set_from_int_map(struct int_map *map, size_t map_size,
163 int *value, const char *name, int namelen)
168 for (i = 0; i < map_size; i++)
169 if (namelen == map[i].namelen &&
170 !strncasecmp(name, map[i].name, namelen)) {
171 *value = map[i].value;
184 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
186 if (srclen > dstlen - 1)
189 strncpy(dst, src, srclen);
193 /* Shorthands for safely copying into a fixed buffer. */
195 #define string_copy(dst, src) \
196 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
198 #define string_ncopy(dst, src, srclen) \
199 string_ncopy_do(dst, sizeof(dst), src, srclen)
201 #define string_copy_rev(dst, src) \
202 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
204 #define string_add(dst, from, src) \
205 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
208 chomp_string(char *name)
212 while (isspace(*name))
215 namelen = strlen(name) - 1;
216 while (namelen > 0 && isspace(name[namelen]))
223 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
226 size_t pos = bufpos ? *bufpos : 0;
229 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
235 return pos >= bufsize ? FALSE : TRUE;
238 #define string_format(buf, fmt, args...) \
239 string_nformat(buf, sizeof(buf), NULL, fmt, args)
241 #define string_format_from(buf, from, fmt, args...) \
242 string_nformat(buf, sizeof(buf), from, fmt, args)
245 string_enum_compare(const char *str1, const char *str2, int len)
249 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
251 /* Diff-Header == DIFF_HEADER */
252 for (i = 0; i < len; i++) {
253 if (toupper(str1[i]) == toupper(str2[i]))
256 if (string_enum_sep(str1[i]) &&
257 string_enum_sep(str2[i]))
260 return str1[i] - str2[i];
268 * NOTE: The following is a slightly modified copy of the git project's shell
269 * quoting routines found in the quote.c file.
271 * Help to copy the thing properly quoted for the shell safety. any single
272 * quote is replaced with '\'', any exclamation point is replaced with '\!',
273 * and the whole thing is enclosed in a
276 * original sq_quote result
277 * name ==> name ==> 'name'
278 * a b ==> a b ==> 'a b'
279 * a'b ==> a'\''b ==> 'a'\''b'
280 * a!b ==> a'\!'b ==> 'a'\!'b'
284 sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src)
288 #define BUFPUT(x) do { if (bufsize < SIZEOF_STR) buf[bufsize++] = (x); } while (0)
291 while ((c = *src++)) {
292 if (c == '\'' || c == '!') {
303 if (bufsize < SIZEOF_STR)
315 /* XXX: Keep the view request first and in sync with views[]. */ \
316 REQ_GROUP("View switching") \
317 REQ_(VIEW_MAIN, "Show main view"), \
318 REQ_(VIEW_DIFF, "Show diff view"), \
319 REQ_(VIEW_LOG, "Show log view"), \
320 REQ_(VIEW_TREE, "Show tree view"), \
321 REQ_(VIEW_BLOB, "Show blob view"), \
322 REQ_(VIEW_BLAME, "Show blame view"), \
323 REQ_(VIEW_HELP, "Show help page"), \
324 REQ_(VIEW_PAGER, "Show pager view"), \
325 REQ_(VIEW_STATUS, "Show status view"), \
326 REQ_(VIEW_STAGE, "Show stage view"), \
328 REQ_GROUP("View manipulation") \
329 REQ_(ENTER, "Enter current line and scroll"), \
330 REQ_(NEXT, "Move to next"), \
331 REQ_(PREVIOUS, "Move to previous"), \
332 REQ_(VIEW_NEXT, "Move focus to next view"), \
333 REQ_(REFRESH, "Reload and refresh"), \
334 REQ_(VIEW_CLOSE, "Close the current view"), \
335 REQ_(QUIT, "Close all views and quit"), \
337 REQ_GROUP("Cursor navigation") \
338 REQ_(MOVE_UP, "Move cursor one line up"), \
339 REQ_(MOVE_DOWN, "Move cursor one line down"), \
340 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
341 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
342 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
343 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
345 REQ_GROUP("Scrolling") \
346 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
347 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
348 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
349 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
351 REQ_GROUP("Searching") \
352 REQ_(SEARCH, "Search the view"), \
353 REQ_(SEARCH_BACK, "Search backwards in the view"), \
354 REQ_(FIND_NEXT, "Find next search match"), \
355 REQ_(FIND_PREV, "Find previous search match"), \
358 REQ_(PROMPT, "Bring up the prompt"), \
359 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
360 REQ_(SCREEN_RESIZE, "Resize the screen"), \
361 REQ_(SHOW_VERSION, "Show version information"), \
362 REQ_(STOP_LOADING, "Stop all loading views"), \
363 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
364 REQ_(TOGGLE_DATE, "Toggle date display"), \
365 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
366 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
367 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
368 REQ_(STATUS_UPDATE, "Update file status"), \
369 REQ_(STATUS_MERGE, "Merge file using external tool"), \
370 REQ_(TREE_PARENT, "Switch to parent directory in tree view"), \
371 REQ_(EDIT, "Open in editor"), \
372 REQ_(NONE, "Do nothing")
375 /* User action requests. */
377 #define REQ_GROUP(help)
378 #define REQ_(req, help) REQ_##req
380 /* Offset all requests to avoid conflicts with ncurses getch values. */
381 REQ_OFFSET = KEY_MAX + 1,
388 struct request_info {
389 enum request request;
395 static struct request_info req_info[] = {
396 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
397 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
404 get_request(const char *name)
406 int namelen = strlen(name);
409 for (i = 0; i < ARRAY_SIZE(req_info); i++)
410 if (req_info[i].namelen == namelen &&
411 !string_enum_compare(req_info[i].name, name, namelen))
412 return req_info[i].request;
422 static const char usage[] =
423 "tig " TIG_VERSION " (" __DATE__ ")\n"
425 "Usage: tig [options] [revs] [--] [paths]\n"
426 " or: tig show [options] [revs] [--] [paths]\n"
427 " or: tig blame [rev] path\n"
429 " or: tig < [git command output]\n"
432 " -v, --version Show version and exit\n"
433 " -h, --help Show help message and exit";
435 /* Option and state variables. */
436 static bool opt_date = TRUE;
437 static bool opt_author = TRUE;
438 static bool opt_line_number = FALSE;
439 static bool opt_rev_graph = FALSE;
440 static bool opt_show_refs = TRUE;
441 static int opt_num_interval = NUMBER_INTERVAL;
442 static int opt_tab_size = TABSIZE;
443 static enum request opt_request = REQ_VIEW_MAIN;
444 static char opt_cmd[SIZEOF_STR] = "";
445 static char opt_path[SIZEOF_STR] = "";
446 static char opt_file[SIZEOF_STR] = "";
447 static char opt_ref[SIZEOF_REF] = "";
448 static char opt_head[SIZEOF_REF] = "";
449 static bool opt_no_head = TRUE;
450 static FILE *opt_pipe = NULL;
451 static char opt_encoding[20] = "UTF-8";
452 static bool opt_utf8 = TRUE;
453 static char opt_codeset[20] = "UTF-8";
454 static iconv_t opt_iconv = ICONV_NONE;
455 static char opt_search[SIZEOF_STR] = "";
456 static char opt_cdup[SIZEOF_STR] = "";
457 static char opt_git_dir[SIZEOF_STR] = "";
458 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
459 static char opt_editor[SIZEOF_STR] = "";
462 parse_options(int argc, char *argv[])
466 bool seen_dashdash = FALSE;
472 subcommand = argv[1];
473 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
474 opt_request = REQ_VIEW_STATUS;
475 if (!strcmp(subcommand, "-S"))
476 warn("`-S' has been deprecated; use `tig status' instead");
478 warn("ignoring arguments after `%s'", subcommand);
481 } else if (!strcmp(subcommand, "blame")) {
482 opt_request = REQ_VIEW_BLAME;
483 if (argc <= 2 || argc > 4)
484 die("invalid number of options to blame\n\n%s", usage);
488 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
492 string_ncopy(opt_file, argv[i], strlen(argv[i]));
495 } else if (!strcmp(subcommand, "show")) {
496 opt_request = REQ_VIEW_DIFF;
498 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
499 opt_request = subcommand[0] == 'l'
500 ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
501 warn("`tig %s' has been deprecated", subcommand);
508 /* XXX: This is vulnerable to the user overriding
509 * options required for the main view parser. */
510 string_copy(opt_cmd, "git log --no-color --pretty=raw --boundary --parents");
512 string_format(opt_cmd, "git %s", subcommand);
514 buf_size = strlen(opt_cmd);
516 for (i = 1 + !!subcommand; i < argc; i++) {
519 if (seen_dashdash || !strcmp(opt, "--")) {
520 seen_dashdash = TRUE;
522 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
523 printf("tig version %s\n", TIG_VERSION);
526 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
527 printf("%s\n", usage);
531 opt_cmd[buf_size++] = ' ';
532 buf_size = sq_quote(opt_cmd, buf_size, opt);
533 if (buf_size >= sizeof(opt_cmd))
534 die("command too long");
537 if (!isatty(STDIN_FILENO)) {
538 opt_request = REQ_VIEW_PAGER;
543 opt_cmd[buf_size] = 0;
550 * Line-oriented content detection.
554 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
555 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
556 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
557 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
558 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
559 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
560 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
561 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
562 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
563 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
564 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
565 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
566 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
567 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
568 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
569 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
570 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
571 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
572 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
573 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
574 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
575 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
576 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
577 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
578 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
579 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
580 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
581 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
582 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
583 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
584 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
585 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
586 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
587 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
588 LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
589 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
590 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
591 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
592 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
593 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
594 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
595 LINE(MAIN_HEAD, "", COLOR_RED, COLOR_DEFAULT, A_BOLD), \
596 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
597 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
598 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
599 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
600 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
601 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
602 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
603 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
604 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
605 LINE(BLAME_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
606 LINE(BLAME_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
607 LINE(BLAME_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
608 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
609 LINE(BLAME_LINENO, "", COLOR_CYAN, COLOR_DEFAULT, 0)
612 #define LINE(type, line, fg, bg, attr) \
619 const char *name; /* Option name. */
620 int namelen; /* Size of option name. */
621 const char *line; /* The start of line to match. */
622 int linelen; /* Size of string to match. */
623 int fg, bg, attr; /* Color and text attributes for the lines. */
626 static struct line_info line_info[] = {
627 #define LINE(type, line, fg, bg, attr) \
628 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
633 static enum line_type
634 get_line_type(char *line)
636 int linelen = strlen(line);
639 for (type = 0; type < ARRAY_SIZE(line_info); type++)
640 /* Case insensitive search matches Signed-off-by lines better. */
641 if (linelen >= line_info[type].linelen &&
642 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
649 get_line_attr(enum line_type type)
651 assert(type < ARRAY_SIZE(line_info));
652 return COLOR_PAIR(type) | line_info[type].attr;
655 static struct line_info *
656 get_line_info(char *name)
658 size_t namelen = strlen(name);
661 for (type = 0; type < ARRAY_SIZE(line_info); type++)
662 if (namelen == line_info[type].namelen &&
663 !string_enum_compare(line_info[type].name, name, namelen))
664 return &line_info[type];
672 int default_bg = line_info[LINE_DEFAULT].bg;
673 int default_fg = line_info[LINE_DEFAULT].fg;
678 if (assume_default_colors(default_fg, default_bg) == ERR) {
679 default_bg = COLOR_BLACK;
680 default_fg = COLOR_WHITE;
683 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
684 struct line_info *info = &line_info[type];
685 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
686 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
688 init_pair(type, fg, bg);
696 unsigned int selected:1;
697 unsigned int dirty:1;
699 void *data; /* User data */
709 enum request request;
710 struct keybinding *next;
713 static struct keybinding default_keybindings[] = {
715 { 'm', REQ_VIEW_MAIN },
716 { 'd', REQ_VIEW_DIFF },
717 { 'l', REQ_VIEW_LOG },
718 { 't', REQ_VIEW_TREE },
719 { 'f', REQ_VIEW_BLOB },
720 { 'B', REQ_VIEW_BLAME },
721 { 'p', REQ_VIEW_PAGER },
722 { 'h', REQ_VIEW_HELP },
723 { 'S', REQ_VIEW_STATUS },
724 { 'c', REQ_VIEW_STAGE },
726 /* View manipulation */
727 { 'q', REQ_VIEW_CLOSE },
728 { KEY_TAB, REQ_VIEW_NEXT },
729 { KEY_RETURN, REQ_ENTER },
730 { KEY_UP, REQ_PREVIOUS },
731 { KEY_DOWN, REQ_NEXT },
732 { 'R', REQ_REFRESH },
734 /* Cursor navigation */
735 { 'k', REQ_MOVE_UP },
736 { 'j', REQ_MOVE_DOWN },
737 { KEY_HOME, REQ_MOVE_FIRST_LINE },
738 { KEY_END, REQ_MOVE_LAST_LINE },
739 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
740 { ' ', REQ_MOVE_PAGE_DOWN },
741 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
742 { 'b', REQ_MOVE_PAGE_UP },
743 { '-', REQ_MOVE_PAGE_UP },
746 { KEY_IC, REQ_SCROLL_LINE_UP },
747 { KEY_DC, REQ_SCROLL_LINE_DOWN },
748 { 'w', REQ_SCROLL_PAGE_UP },
749 { 's', REQ_SCROLL_PAGE_DOWN },
753 { '?', REQ_SEARCH_BACK },
754 { 'n', REQ_FIND_NEXT },
755 { 'N', REQ_FIND_PREV },
759 { 'z', REQ_STOP_LOADING },
760 { 'v', REQ_SHOW_VERSION },
761 { 'r', REQ_SCREEN_REDRAW },
762 { '.', REQ_TOGGLE_LINENO },
763 { 'D', REQ_TOGGLE_DATE },
764 { 'A', REQ_TOGGLE_AUTHOR },
765 { 'g', REQ_TOGGLE_REV_GRAPH },
766 { 'F', REQ_TOGGLE_REFS },
768 { 'u', REQ_STATUS_UPDATE },
769 { 'M', REQ_STATUS_MERGE },
770 { ',', REQ_TREE_PARENT },
773 /* Using the ncurses SIGWINCH handler. */
774 { KEY_RESIZE, REQ_SCREEN_RESIZE },
777 #define KEYMAP_INFO \
791 #define KEYMAP_(name) KEYMAP_##name
796 static struct int_map keymap_table[] = {
797 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
802 #define set_keymap(map, name) \
803 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
805 static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)];
808 add_keybinding(enum keymap keymap, enum request request, int key)
810 struct keybinding *keybinding;
812 keybinding = calloc(1, sizeof(*keybinding));
814 die("Failed to allocate keybinding");
816 keybinding->alias = key;
817 keybinding->request = request;
818 keybinding->next = keybindings[keymap];
819 keybindings[keymap] = keybinding;
822 /* Looks for a key binding first in the given map, then in the generic map, and
823 * lastly in the default keybindings. */
825 get_keybinding(enum keymap keymap, int key)
827 struct keybinding *kbd;
830 for (kbd = keybindings[keymap]; kbd; kbd = kbd->next)
831 if (kbd->alias == key)
834 for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next)
835 if (kbd->alias == key)
838 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
839 if (default_keybindings[i].alias == key)
840 return default_keybindings[i].request;
842 return (enum request) key;
851 static struct key key_table[] = {
852 { "Enter", KEY_RETURN },
854 { "Backspace", KEY_BACKSPACE },
856 { "Escape", KEY_ESC },
857 { "Left", KEY_LEFT },
858 { "Right", KEY_RIGHT },
860 { "Down", KEY_DOWN },
861 { "Insert", KEY_IC },
862 { "Delete", KEY_DC },
864 { "Home", KEY_HOME },
866 { "PageUp", KEY_PPAGE },
867 { "PageDown", KEY_NPAGE },
877 { "F10", KEY_F(10) },
878 { "F11", KEY_F(11) },
879 { "F12", KEY_F(12) },
883 get_key_value(const char *name)
887 for (i = 0; i < ARRAY_SIZE(key_table); i++)
888 if (!strcasecmp(key_table[i].name, name))
889 return key_table[i].value;
891 if (strlen(name) == 1 && isprint(*name))
898 get_key_name(int key_value)
900 static char key_char[] = "'X'";
904 for (key = 0; key < ARRAY_SIZE(key_table); key++)
905 if (key_table[key].value == key_value)
906 seq = key_table[key].name;
910 isprint(key_value)) {
911 key_char[1] = (char) key_value;
915 return seq ? seq : "'?'";
919 get_key(enum request request)
921 static char buf[BUFSIZ];
928 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
929 struct keybinding *keybinding = &default_keybindings[i];
931 if (keybinding->request != request)
934 if (!string_format_from(buf, &pos, "%s%s", sep,
935 get_key_name(keybinding->alias)))
936 return "Too many keybindings!";
946 char cmd[SIZEOF_STR];
949 static struct run_request *run_request;
950 static size_t run_requests;
953 add_run_request(enum keymap keymap, int key, int argc, char **argv)
955 struct run_request *tmp;
956 struct run_request req = { keymap, key };
959 for (bufpos = 0; argc > 0; argc--, argv++)
960 if (!string_format_from(req.cmd, &bufpos, "%s ", *argv))
963 req.cmd[bufpos - 1] = 0;
965 tmp = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
970 run_request[run_requests++] = req;
972 return REQ_NONE + run_requests;
975 static struct run_request *
976 get_run_request(enum request request)
978 if (request <= REQ_NONE)
980 return &run_request[request - REQ_NONE - 1];
984 add_builtin_run_requests(void)
991 { KEYMAP_MAIN, 'C', { "git cherry-pick %(commit)" } },
992 { KEYMAP_GENERIC, 'G', { "git gc" } },
996 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
999 req = add_run_request(reqs[i].keymap, reqs[i].key, 1, reqs[i].argv);
1000 if (req != REQ_NONE)
1001 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1006 * User config file handling.
1009 static struct int_map color_map[] = {
1010 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1022 #define set_color(color, name) \
1023 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1025 static struct int_map attr_map[] = {
1026 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1033 ATTR_MAP(UNDERLINE),
1036 #define set_attribute(attr, name) \
1037 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1039 static int config_lineno;
1040 static bool config_errors;
1041 static char *config_msg;
1043 /* Wants: object fgcolor bgcolor [attr] */
1045 option_color_command(int argc, char *argv[])
1047 struct line_info *info;
1049 if (argc != 3 && argc != 4) {
1050 config_msg = "Wrong number of arguments given to color command";
1054 info = get_line_info(argv[0]);
1056 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1057 info = get_line_info("delimiter");
1060 config_msg = "Unknown color name";
1065 if (set_color(&info->fg, argv[1]) == ERR ||
1066 set_color(&info->bg, argv[2]) == ERR) {
1067 config_msg = "Unknown color";
1071 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1072 config_msg = "Unknown attribute";
1079 static bool parse_bool(const char *s)
1081 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1082 !strcmp(s, "yes")) ? TRUE : FALSE;
1085 /* Wants: name = value */
1087 option_set_command(int argc, char *argv[])
1090 config_msg = "Wrong number of arguments given to set command";
1094 if (strcmp(argv[1], "=")) {
1095 config_msg = "No value assigned";
1099 if (!strcmp(argv[0], "show-author")) {
1100 opt_author = parse_bool(argv[2]);
1104 if (!strcmp(argv[0], "show-date")) {
1105 opt_date = parse_bool(argv[2]);
1109 if (!strcmp(argv[0], "show-rev-graph")) {
1110 opt_rev_graph = parse_bool(argv[2]);
1114 if (!strcmp(argv[0], "show-refs")) {
1115 opt_show_refs = parse_bool(argv[2]);
1119 if (!strcmp(argv[0], "show-line-numbers")) {
1120 opt_line_number = parse_bool(argv[2]);
1124 if (!strcmp(argv[0], "line-number-interval")) {
1125 opt_num_interval = atoi(argv[2]);
1129 if (!strcmp(argv[0], "tab-size")) {
1130 opt_tab_size = atoi(argv[2]);
1134 if (!strcmp(argv[0], "commit-encoding")) {
1135 char *arg = argv[2];
1136 int delimiter = *arg;
1139 switch (delimiter) {
1142 for (arg++, i = 0; arg[i]; i++)
1143 if (arg[i] == delimiter) {
1148 string_ncopy(opt_encoding, arg, strlen(arg));
1153 config_msg = "Unknown variable name";
1157 /* Wants: mode request key */
1159 option_bind_command(int argc, char *argv[])
1161 enum request request;
1166 config_msg = "Wrong number of arguments given to bind command";
1170 if (set_keymap(&keymap, argv[0]) == ERR) {
1171 config_msg = "Unknown key map";
1175 key = get_key_value(argv[1]);
1177 config_msg = "Unknown key";
1181 request = get_request(argv[2]);
1182 if (request == REQ_NONE) {
1183 const char *obsolete[] = { "cherry-pick" };
1184 size_t namelen = strlen(argv[2]);
1187 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1188 if (namelen == strlen(obsolete[i]) &&
1189 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1190 config_msg = "Obsolete request name";
1195 if (request == REQ_NONE && *argv[2]++ == '!')
1196 request = add_run_request(keymap, key, argc - 2, argv + 2);
1197 if (request == REQ_NONE) {
1198 config_msg = "Unknown request name";
1202 add_keybinding(keymap, request, key);
1208 set_option(char *opt, char *value)
1215 while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) {
1216 argv[argc++] = value;
1219 /* Nothing more to tokenize or last available token. */
1220 if (!*value || argc >= ARRAY_SIZE(argv))
1224 while (isspace(*value))
1228 if (!strcmp(opt, "color"))
1229 return option_color_command(argc, argv);
1231 if (!strcmp(opt, "set"))
1232 return option_set_command(argc, argv);
1234 if (!strcmp(opt, "bind"))
1235 return option_bind_command(argc, argv);
1237 config_msg = "Unknown option command";
1242 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1247 config_msg = "Internal error";
1249 /* Check for comment markers, since read_properties() will
1250 * only ensure opt and value are split at first " \t". */
1251 optlen = strcspn(opt, "#");
1255 if (opt[optlen] != 0) {
1256 config_msg = "No option value";
1260 /* Look for comment endings in the value. */
1261 size_t len = strcspn(value, "#");
1263 if (len < valuelen) {
1265 value[valuelen] = 0;
1268 status = set_option(opt, value);
1271 if (status == ERR) {
1272 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1273 config_lineno, (int) optlen, opt, config_msg);
1274 config_errors = TRUE;
1277 /* Always keep going if errors are encountered. */
1282 load_option_file(const char *path)
1286 /* It's ok that the file doesn't exist. */
1287 file = fopen(path, "r");
1292 config_errors = FALSE;
1294 if (read_properties(file, " \t", read_option) == ERR ||
1295 config_errors == TRUE)
1296 fprintf(stderr, "Errors while loading %s.\n", path);
1302 char *home = getenv("HOME");
1303 char *tigrc_user = getenv("TIGRC_USER");
1304 char *tigrc_system = getenv("TIGRC_SYSTEM");
1305 char buf[SIZEOF_STR];
1307 add_builtin_run_requests();
1309 if (!tigrc_system) {
1310 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1314 load_option_file(tigrc_system);
1317 if (!home || !string_format(buf, "%s/.tigrc", home))
1321 load_option_file(tigrc_user);
1334 /* The display array of active views and the index of the current view. */
1335 static struct view *display[2];
1336 static unsigned int current_view;
1338 /* Reading from the prompt? */
1339 static bool input_mode = FALSE;
1341 #define foreach_displayed_view(view, i) \
1342 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1344 #define displayed_views() (display[1] != NULL ? 2 : 1)
1346 /* Current head and commit ID */
1347 static char ref_blob[SIZEOF_REF] = "";
1348 static char ref_commit[SIZEOF_REF] = "HEAD";
1349 static char ref_head[SIZEOF_REF] = "HEAD";
1352 const char *name; /* View name */
1353 const char *cmd_fmt; /* Default command line format */
1354 const char *cmd_env; /* Command line set via environment */
1355 const char *id; /* Points to either of ref_{head,commit,blob} */
1357 struct view_ops *ops; /* View operations */
1359 enum keymap keymap; /* What keymap does this view have */
1361 char cmd[SIZEOF_STR]; /* Command buffer */
1362 char ref[SIZEOF_REF]; /* Hovered commit reference */
1363 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1365 int height, width; /* The width and height of the main window */
1366 WINDOW *win; /* The main window */
1367 WINDOW *title; /* The title window living below the main window */
1370 unsigned long offset; /* Offset of the window top */
1371 unsigned long lineno; /* Current line number */
1374 char grep[SIZEOF_STR]; /* Search string */
1375 regex_t *regex; /* Pre-compiled regex */
1377 /* If non-NULL, points to the view that opened this view. If this view
1378 * is closed tig will switch back to the parent view. */
1379 struct view *parent;
1382 size_t lines; /* Total number of lines */
1383 struct line *line; /* Line index */
1384 size_t line_alloc; /* Total number of allocated lines */
1385 size_t line_size; /* Total number of used lines */
1386 unsigned int digits; /* Number of digits in the lines member. */
1394 /* What type of content being displayed. Used in the title bar. */
1396 /* Open and reads in all view content. */
1397 bool (*open)(struct view *view);
1398 /* Read one line; updates view->line. */
1399 bool (*read)(struct view *view, char *data);
1400 /* Draw one line; @lineno must be < view->height. */
1401 bool (*draw)(struct view *view, struct line *line, unsigned int lineno, bool selected);
1402 /* Depending on view handle a special requests. */
1403 enum request (*request)(struct view *view, enum request request, struct line *line);
1404 /* Search for regex in a line. */
1405 bool (*grep)(struct view *view, struct line *line);
1407 void (*select)(struct view *view, struct line *line);
1410 static struct view_ops pager_ops;
1411 static struct view_ops main_ops;
1412 static struct view_ops tree_ops;
1413 static struct view_ops blob_ops;
1414 static struct view_ops blame_ops;
1415 static struct view_ops help_ops;
1416 static struct view_ops status_ops;
1417 static struct view_ops stage_ops;
1419 #define VIEW_STR(name, cmd, env, ref, ops, map) \
1420 { name, cmd, #env, ref, ops, map}
1422 #define VIEW_(id, name, ops, ref) \
1423 VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id)
1426 static struct view views[] = {
1427 VIEW_(MAIN, "main", &main_ops, ref_head),
1428 VIEW_(DIFF, "diff", &pager_ops, ref_commit),
1429 VIEW_(LOG, "log", &pager_ops, ref_head),
1430 VIEW_(TREE, "tree", &tree_ops, ref_commit),
1431 VIEW_(BLOB, "blob", &blob_ops, ref_blob),
1432 VIEW_(BLAME, "blame", &blame_ops, ref_commit),
1433 VIEW_(HELP, "help", &help_ops, ""),
1434 VIEW_(PAGER, "pager", &pager_ops, "stdin"),
1435 VIEW_(STATUS, "status", &status_ops, ""),
1436 VIEW_(STAGE, "stage", &stage_ops, ""),
1439 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1441 #define foreach_view(view, i) \
1442 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1444 #define view_is_displayed(view) \
1445 (view == display[0] || view == display[1])
1448 draw_text(struct view *view, const char *string, int max_len,
1449 bool use_tilde, bool selected)
1452 int trimmed = FALSE;
1458 len = utf8_length(string, max_len, &trimmed, use_tilde);
1460 len = strlen(string);
1461 if (len > max_len) {
1470 waddnstr(view->win, string, len);
1471 if (trimmed && use_tilde) {
1473 wattrset(view->win, get_line_attr(LINE_DELIMITER));
1474 waddch(view->win, '~');
1482 draw_view_line(struct view *view, unsigned int lineno)
1485 bool selected = (view->offset + lineno == view->lineno);
1488 assert(view_is_displayed(view));
1490 if (view->offset + lineno >= view->lines)
1493 line = &view->line[view->offset + lineno];
1496 line->selected = TRUE;
1497 view->ops->select(view, line);
1498 } else if (line->selected) {
1499 line->selected = FALSE;
1500 wmove(view->win, lineno, 0);
1501 wclrtoeol(view->win);
1504 scrollok(view->win, FALSE);
1505 draw_ok = view->ops->draw(view, line, lineno, selected);
1506 scrollok(view->win, TRUE);
1512 redraw_view_dirty(struct view *view)
1517 for (lineno = 0; lineno < view->height; lineno++) {
1518 struct line *line = &view->line[view->offset + lineno];
1524 if (!draw_view_line(view, lineno))
1530 redrawwin(view->win);
1532 wnoutrefresh(view->win);
1534 wrefresh(view->win);
1538 redraw_view_from(struct view *view, int lineno)
1540 assert(0 <= lineno && lineno < view->height);
1542 for (; lineno < view->height; lineno++) {
1543 if (!draw_view_line(view, lineno))
1547 redrawwin(view->win);
1549 wnoutrefresh(view->win);
1551 wrefresh(view->win);
1555 redraw_view(struct view *view)
1558 redraw_view_from(view, 0);
1563 update_view_title(struct view *view)
1565 char buf[SIZEOF_STR];
1566 char state[SIZEOF_STR];
1567 size_t bufpos = 0, statelen = 0;
1569 assert(view_is_displayed(view));
1571 if (view != VIEW(REQ_VIEW_STATUS) && (view->lines || view->pipe)) {
1572 unsigned int view_lines = view->offset + view->height;
1573 unsigned int lines = view->lines
1574 ? MIN(view_lines, view->lines) * 100 / view->lines
1577 string_format_from(state, &statelen, "- %s %d of %d (%d%%)",
1584 time_t secs = time(NULL) - view->start_time;
1586 /* Three git seconds are a long time ... */
1588 string_format_from(state, &statelen, " %lds", secs);
1592 string_format_from(buf, &bufpos, "[%s]", view->name);
1593 if (*view->ref && bufpos < view->width) {
1594 size_t refsize = strlen(view->ref);
1595 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
1597 if (minsize < view->width)
1598 refsize = view->width - minsize + 7;
1599 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
1602 if (statelen && bufpos < view->width) {
1603 string_format_from(buf, &bufpos, " %s", state);
1606 if (view == display[current_view])
1607 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
1609 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
1611 mvwaddnstr(view->title, 0, 0, buf, bufpos);
1612 wclrtoeol(view->title);
1613 wmove(view->title, 0, view->width - 1);
1616 wnoutrefresh(view->title);
1618 wrefresh(view->title);
1622 resize_display(void)
1625 struct view *base = display[0];
1626 struct view *view = display[1] ? display[1] : display[0];
1628 /* Setup window dimensions */
1630 getmaxyx(stdscr, base->height, base->width);
1632 /* Make room for the status window. */
1636 /* Horizontal split. */
1637 view->width = base->width;
1638 view->height = SCALE_SPLIT_VIEW(base->height);
1639 base->height -= view->height;
1641 /* Make room for the title bar. */
1645 /* Make room for the title bar. */
1650 foreach_displayed_view (view, i) {
1652 view->win = newwin(view->height, 0, offset, 0);
1654 die("Failed to create %s view", view->name);
1656 scrollok(view->win, TRUE);
1658 view->title = newwin(1, 0, offset + view->height, 0);
1660 die("Failed to create title window");
1663 wresize(view->win, view->height, view->width);
1664 mvwin(view->win, offset, 0);
1665 mvwin(view->title, offset + view->height, 0);
1668 offset += view->height + 1;
1673 redraw_display(void)
1678 foreach_displayed_view (view, i) {
1680 update_view_title(view);
1685 update_display_cursor(struct view *view)
1687 /* Move the cursor to the right-most column of the cursor line.
1689 * XXX: This could turn out to be a bit expensive, but it ensures that
1690 * the cursor does not jump around. */
1692 wmove(view->win, view->lineno - view->offset, view->width - 1);
1693 wrefresh(view->win);
1701 /* Scrolling backend */
1703 do_scroll_view(struct view *view, int lines)
1705 bool redraw_current_line = FALSE;
1707 /* The rendering expects the new offset. */
1708 view->offset += lines;
1710 assert(0 <= view->offset && view->offset < view->lines);
1713 /* Move current line into the view. */
1714 if (view->lineno < view->offset) {
1715 view->lineno = view->offset;
1716 redraw_current_line = TRUE;
1717 } else if (view->lineno >= view->offset + view->height) {
1718 view->lineno = view->offset + view->height - 1;
1719 redraw_current_line = TRUE;
1722 assert(view->offset <= view->lineno && view->lineno < view->lines);
1724 /* Redraw the whole screen if scrolling is pointless. */
1725 if (view->height < ABS(lines)) {
1729 int line = lines > 0 ? view->height - lines : 0;
1730 int end = line + ABS(lines);
1732 wscrl(view->win, lines);
1734 for (; line < end; line++) {
1735 if (!draw_view_line(view, line))
1739 if (redraw_current_line)
1740 draw_view_line(view, view->lineno - view->offset);
1743 redrawwin(view->win);
1744 wrefresh(view->win);
1748 /* Scroll frontend */
1750 scroll_view(struct view *view, enum request request)
1754 assert(view_is_displayed(view));
1757 case REQ_SCROLL_PAGE_DOWN:
1758 lines = view->height;
1759 case REQ_SCROLL_LINE_DOWN:
1760 if (view->offset + lines > view->lines)
1761 lines = view->lines - view->offset;
1763 if (lines == 0 || view->offset + view->height >= view->lines) {
1764 report("Cannot scroll beyond the last line");
1769 case REQ_SCROLL_PAGE_UP:
1770 lines = view->height;
1771 case REQ_SCROLL_LINE_UP:
1772 if (lines > view->offset)
1773 lines = view->offset;
1776 report("Cannot scroll beyond the first line");
1784 die("request %d not handled in switch", request);
1787 do_scroll_view(view, lines);
1792 move_view(struct view *view, enum request request)
1794 int scroll_steps = 0;
1798 case REQ_MOVE_FIRST_LINE:
1799 steps = -view->lineno;
1802 case REQ_MOVE_LAST_LINE:
1803 steps = view->lines - view->lineno - 1;
1806 case REQ_MOVE_PAGE_UP:
1807 steps = view->height > view->lineno
1808 ? -view->lineno : -view->height;
1811 case REQ_MOVE_PAGE_DOWN:
1812 steps = view->lineno + view->height >= view->lines
1813 ? view->lines - view->lineno - 1 : view->height;
1825 die("request %d not handled in switch", request);
1828 if (steps <= 0 && view->lineno == 0) {
1829 report("Cannot move beyond the first line");
1832 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
1833 report("Cannot move beyond the last line");
1837 /* Move the current line */
1838 view->lineno += steps;
1839 assert(0 <= view->lineno && view->lineno < view->lines);
1841 /* Check whether the view needs to be scrolled */
1842 if (view->lineno < view->offset ||
1843 view->lineno >= view->offset + view->height) {
1844 scroll_steps = steps;
1845 if (steps < 0 && -steps > view->offset) {
1846 scroll_steps = -view->offset;
1848 } else if (steps > 0) {
1849 if (view->lineno == view->lines - 1 &&
1850 view->lines > view->height) {
1851 scroll_steps = view->lines - view->offset - 1;
1852 if (scroll_steps >= view->height)
1853 scroll_steps -= view->height - 1;
1858 if (!view_is_displayed(view)) {
1859 view->offset += scroll_steps;
1860 assert(0 <= view->offset && view->offset < view->lines);
1861 view->ops->select(view, &view->line[view->lineno]);
1865 /* Repaint the old "current" line if we be scrolling */
1866 if (ABS(steps) < view->height)
1867 draw_view_line(view, view->lineno - steps - view->offset);
1870 do_scroll_view(view, scroll_steps);
1874 /* Draw the current line */
1875 draw_view_line(view, view->lineno - view->offset);
1877 redrawwin(view->win);
1878 wrefresh(view->win);
1887 static void search_view(struct view *view, enum request request);
1890 find_next_line(struct view *view, unsigned long lineno, struct line *line)
1892 assert(view_is_displayed(view));
1894 if (!view->ops->grep(view, line))
1897 if (lineno - view->offset >= view->height) {
1898 view->offset = lineno;
1899 view->lineno = lineno;
1903 unsigned long old_lineno = view->lineno - view->offset;
1905 view->lineno = lineno;
1906 draw_view_line(view, old_lineno);
1908 draw_view_line(view, view->lineno - view->offset);
1909 redrawwin(view->win);
1910 wrefresh(view->win);
1913 report("Line %ld matches '%s'", lineno + 1, view->grep);
1918 find_next(struct view *view, enum request request)
1920 unsigned long lineno = view->lineno;
1925 report("No previous search");
1927 search_view(view, request);
1937 case REQ_SEARCH_BACK:
1946 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
1947 lineno += direction;
1949 /* Note, lineno is unsigned long so will wrap around in which case it
1950 * will become bigger than view->lines. */
1951 for (; lineno < view->lines; lineno += direction) {
1952 struct line *line = &view->line[lineno];
1954 if (find_next_line(view, lineno, line))
1958 report("No match found for '%s'", view->grep);
1962 search_view(struct view *view, enum request request)
1967 regfree(view->regex);
1970 view->regex = calloc(1, sizeof(*view->regex));
1975 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
1976 if (regex_err != 0) {
1977 char buf[SIZEOF_STR] = "unknown error";
1979 regerror(regex_err, view->regex, buf, sizeof(buf));
1980 report("Search failed: %s", buf);
1984 string_copy(view->grep, opt_search);
1986 find_next(view, request);
1990 * Incremental updating
1994 end_update(struct view *view)
1998 set_nonblocking_input(FALSE);
1999 if (view->pipe == stdin)
2007 begin_update(struct view *view)
2013 string_copy(view->cmd, opt_cmd);
2015 /* When running random commands, initially show the
2016 * command in the title. However, it maybe later be
2017 * overwritten if a commit line is selected. */
2018 if (view == VIEW(REQ_VIEW_PAGER))
2019 string_copy(view->ref, view->cmd);
2023 } else if (view == VIEW(REQ_VIEW_TREE)) {
2024 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2025 char path[SIZEOF_STR];
2027 if (strcmp(view->vid, view->id))
2028 opt_path[0] = path[0] = 0;
2029 else if (sq_quote(path, 0, opt_path) >= sizeof(path))
2032 if (!string_format(view->cmd, format, view->id, path))
2036 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2037 const char *id = view->id;
2039 if (!string_format(view->cmd, format, id, id, id, id, id))
2042 /* Put the current ref_* value to the view title ref
2043 * member. This is needed by the blob view. Most other
2044 * views sets it automatically after loading because the
2045 * first line is a commit line. */
2046 string_copy_rev(view->ref, view->id);
2049 /* Special case for the pager view. */
2051 view->pipe = opt_pipe;
2054 view->pipe = popen(view->cmd, "r");
2060 set_nonblocking_input(TRUE);
2065 string_copy_rev(view->vid, view->id);
2070 for (i = 0; i < view->lines; i++)
2071 if (view->line[i].data)
2072 free(view->line[i].data);
2078 view->start_time = time(NULL);
2083 #define ITEM_CHUNK_SIZE 256
2085 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2087 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2088 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2090 if (mem == NULL || num_chunks != num_chunks_new) {
2091 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2092 mem = realloc(mem, *size * item_size);
2098 static struct line *
2099 realloc_lines(struct view *view, size_t line_size)
2101 size_t alloc = view->line_alloc;
2102 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2103 sizeof(*view->line));
2109 view->line_alloc = alloc;
2110 view->line_size = line_size;
2115 update_view(struct view *view)
2117 char in_buffer[BUFSIZ];
2118 char out_buffer[BUFSIZ * 2];
2120 /* The number of lines to read. If too low it will cause too much
2121 * redrawing (and possible flickering), if too high responsiveness
2123 unsigned long lines = view->height;
2124 int redraw_from = -1;
2129 /* Only redraw if lines are visible. */
2130 if (view->offset + view->height >= view->lines)
2131 redraw_from = view->lines - view->offset;
2133 /* FIXME: This is probably not perfect for backgrounded views. */
2134 if (!realloc_lines(view, view->lines + lines))
2137 while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) {
2138 size_t linelen = strlen(line);
2141 line[linelen - 1] = 0;
2143 if (opt_iconv != ICONV_NONE) {
2144 ICONV_CONST char *inbuf = line;
2145 size_t inlen = linelen;
2147 char *outbuf = out_buffer;
2148 size_t outlen = sizeof(out_buffer);
2152 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2153 if (ret != (size_t) -1) {
2155 linelen = strlen(out_buffer);
2159 if (!view->ops->read(view, line))
2169 lines = view->lines;
2170 for (digits = 0; lines; digits++)
2173 /* Keep the displayed view in sync with line number scaling. */
2174 if (digits != view->digits) {
2175 view->digits = digits;
2180 if (!view_is_displayed(view))
2183 if (view == VIEW(REQ_VIEW_TREE)) {
2184 /* Clear the view and redraw everything since the tree sorting
2185 * might have rearranged things. */
2188 } else if (redraw_from >= 0) {
2189 /* If this is an incremental update, redraw the previous line
2190 * since for commits some members could have changed when
2191 * loading the main view. */
2192 if (redraw_from > 0)
2195 /* Since revision graph visualization requires knowledge
2196 * about the parent commit, it causes a further one-off
2197 * needed to be redrawn for incremental updates. */
2198 if (redraw_from > 0 && opt_rev_graph)
2201 /* Incrementally draw avoids flickering. */
2202 redraw_view_from(view, redraw_from);
2205 if (view == VIEW(REQ_VIEW_BLAME))
2206 redraw_view_dirty(view);
2208 /* Update the title _after_ the redraw so that if the redraw picks up a
2209 * commit reference in view->ref it'll be available here. */
2210 update_view_title(view);
2213 if (ferror(view->pipe)) {
2214 report("Failed to read: %s", strerror(errno));
2217 } else if (feof(view->pipe)) {
2225 report("Allocation failure");
2228 if (view->ops->read(view, NULL))
2233 static struct line *
2234 add_line_data(struct view *view, void *data, enum line_type type)
2236 struct line *line = &view->line[view->lines++];
2238 memset(line, 0, sizeof(*line));
2245 static struct line *
2246 add_line_text(struct view *view, char *data, enum line_type type)
2249 data = strdup(data);
2251 return data ? add_line_data(view, data, type) : NULL;
2260 OPEN_DEFAULT = 0, /* Use default view switching. */
2261 OPEN_SPLIT = 1, /* Split current view. */
2262 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2263 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2267 open_view(struct view *prev, enum request request, enum open_flags flags)
2269 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2270 bool split = !!(flags & OPEN_SPLIT);
2271 bool reload = !!(flags & OPEN_RELOAD);
2272 struct view *view = VIEW(request);
2273 int nviews = displayed_views();
2274 struct view *base_view = display[0];
2276 if (view == prev && nviews == 1 && !reload) {
2277 report("Already in %s view", view->name);
2286 /* Maximize the current view. */
2287 memset(display, 0, sizeof(display));
2289 display[current_view] = view;
2292 /* Resize the view when switching between split- and full-screen,
2293 * or when switching between two different full-screen views. */
2294 if (nviews != displayed_views() ||
2295 (nviews == 1 && base_view != display[0]))
2298 if (view->ops->open) {
2299 if (!view->ops->open(view)) {
2300 report("Failed to load %s view", view->name);
2304 } else if ((reload || strcmp(view->vid, view->id)) &&
2305 !begin_update(view)) {
2306 report("Failed to load %s view", view->name);
2310 if (split && prev->lineno - prev->offset >= prev->height) {
2311 /* Take the title line into account. */
2312 int lines = prev->lineno - prev->offset - prev->height + 1;
2314 /* Scroll the view that was split if the current line is
2315 * outside the new limited view. */
2316 do_scroll_view(prev, lines);
2319 if (prev && view != prev) {
2320 if (split && !backgrounded) {
2321 /* "Blur" the previous view. */
2322 update_view_title(prev);
2325 view->parent = prev;
2328 if (view->pipe && view->lines == 0) {
2329 /* Clear the old view and let the incremental updating refill
2338 /* If the view is backgrounded the above calls to report()
2339 * won't redraw the view title. */
2341 update_view_title(view);
2345 open_external_viewer(const char *cmd)
2347 def_prog_mode(); /* save current tty modes */
2348 endwin(); /* restore original tty modes */
2350 fprintf(stderr, "Press Enter to continue");
2357 open_mergetool(const char *file)
2359 char cmd[SIZEOF_STR];
2360 char file_sq[SIZEOF_STR];
2362 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2363 string_format(cmd, "git mergetool %s", file_sq)) {
2364 open_external_viewer(cmd);
2369 open_editor(bool from_root, const char *file)
2371 char cmd[SIZEOF_STR];
2372 char file_sq[SIZEOF_STR];
2374 char *prefix = from_root ? opt_cdup : "";
2376 editor = getenv("GIT_EDITOR");
2377 if (!editor && *opt_editor)
2378 editor = opt_editor;
2380 editor = getenv("VISUAL");
2382 editor = getenv("EDITOR");
2386 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2387 string_format(cmd, "%s %s%s", editor, prefix, file_sq)) {
2388 open_external_viewer(cmd);
2393 open_run_request(enum request request)
2395 struct run_request *req = get_run_request(request);
2396 char buf[SIZEOF_STR * 2];
2401 report("Unknown run request");
2409 char *next = strstr(cmd, "%(");
2410 int len = next - cmd;
2417 } else if (!strncmp(next, "%(head)", 7)) {
2420 } else if (!strncmp(next, "%(commit)", 9)) {
2423 } else if (!strncmp(next, "%(blob)", 7)) {
2427 report("Unknown replacement in run request: `%s`", req->cmd);
2431 if (!string_format_from(buf, &bufpos, "%.*s%s", len, cmd, value))
2435 next = strchr(next, ')') + 1;
2439 open_external_viewer(buf);
2443 * User request switch noodle
2447 view_driver(struct view *view, enum request request)
2451 if (request == REQ_NONE) {
2456 if (request > REQ_NONE) {
2457 open_run_request(request);
2461 if (view && view->lines) {
2462 request = view->ops->request(view, request, &view->line[view->lineno]);
2463 if (request == REQ_NONE)
2470 case REQ_MOVE_PAGE_UP:
2471 case REQ_MOVE_PAGE_DOWN:
2472 case REQ_MOVE_FIRST_LINE:
2473 case REQ_MOVE_LAST_LINE:
2474 move_view(view, request);
2477 case REQ_SCROLL_LINE_DOWN:
2478 case REQ_SCROLL_LINE_UP:
2479 case REQ_SCROLL_PAGE_DOWN:
2480 case REQ_SCROLL_PAGE_UP:
2481 scroll_view(view, request);
2484 case REQ_VIEW_BLAME:
2486 report("No file chosen, press %s to open tree view",
2487 get_key(REQ_VIEW_TREE));
2490 open_view(view, request, OPEN_DEFAULT);
2495 report("No file chosen, press %s to open tree view",
2496 get_key(REQ_VIEW_TREE));
2499 open_view(view, request, OPEN_DEFAULT);
2502 case REQ_VIEW_PAGER:
2503 if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2504 report("No pager content, press %s to run command from prompt",
2505 get_key(REQ_PROMPT));
2508 open_view(view, request, OPEN_DEFAULT);
2511 case REQ_VIEW_STAGE:
2512 if (!VIEW(REQ_VIEW_STAGE)->lines) {
2513 report("No stage content, press %s to open the status view and choose file",
2514 get_key(REQ_VIEW_STATUS));
2517 open_view(view, request, OPEN_DEFAULT);
2520 case REQ_VIEW_STATUS:
2521 if (opt_is_inside_work_tree == FALSE) {
2522 report("The status view requires a working tree");
2525 open_view(view, request, OPEN_DEFAULT);
2533 open_view(view, request, OPEN_DEFAULT);
2538 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2540 if ((view == VIEW(REQ_VIEW_DIFF) &&
2541 view->parent == VIEW(REQ_VIEW_MAIN)) ||
2542 (view == VIEW(REQ_VIEW_DIFF) &&
2543 view->parent == VIEW(REQ_VIEW_BLAME)) ||
2544 (view == VIEW(REQ_VIEW_STAGE) &&
2545 view->parent == VIEW(REQ_VIEW_STATUS)) ||
2546 (view == VIEW(REQ_VIEW_BLOB) &&
2547 view->parent == VIEW(REQ_VIEW_TREE))) {
2550 view = view->parent;
2551 line = view->lineno;
2552 move_view(view, request);
2553 if (view_is_displayed(view))
2554 update_view_title(view);
2555 if (line != view->lineno)
2556 view->ops->request(view, REQ_ENTER,
2557 &view->line[view->lineno]);
2560 move_view(view, request);
2566 int nviews = displayed_views();
2567 int next_view = (current_view + 1) % nviews;
2569 if (next_view == current_view) {
2570 report("Only one view is displayed");
2574 current_view = next_view;
2575 /* Blur out the title of the previous view. */
2576 update_view_title(view);
2581 report("Refreshing is not yet supported for the %s view", view->name);
2584 case REQ_TOGGLE_LINENO:
2585 opt_line_number = !opt_line_number;
2589 case REQ_TOGGLE_DATE:
2590 opt_date = !opt_date;
2594 case REQ_TOGGLE_AUTHOR:
2595 opt_author = !opt_author;
2599 case REQ_TOGGLE_REV_GRAPH:
2600 opt_rev_graph = !opt_rev_graph;
2604 case REQ_TOGGLE_REFS:
2605 opt_show_refs = !opt_show_refs;
2610 /* Always reload^Wrerun commands from the prompt. */
2611 open_view(view, opt_request, OPEN_RELOAD);
2615 case REQ_SEARCH_BACK:
2616 search_view(view, request);
2621 find_next(view, request);
2624 case REQ_STOP_LOADING:
2625 for (i = 0; i < ARRAY_SIZE(views); i++) {
2628 report("Stopped loading the %s view", view->name),
2633 case REQ_SHOW_VERSION:
2634 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
2637 case REQ_SCREEN_RESIZE:
2640 case REQ_SCREEN_REDRAW:
2645 report("Nothing to edit");
2650 report("Nothing to enter");
2654 case REQ_VIEW_CLOSE:
2655 /* XXX: Mark closed views by letting view->parent point to the
2656 * view itself. Parents to closed view should never be
2659 view->parent->parent != view->parent) {
2660 memset(display, 0, sizeof(display));
2662 display[current_view] = view->parent;
2663 view->parent = view;
2673 /* An unknown key will show most commonly used commands. */
2674 report("Unknown key, press 'h' for help");
2687 pager_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
2689 char *text = line->data;
2690 enum line_type type = line->type;
2693 wmove(view->win, lineno, 0);
2697 wchgat(view->win, -1, 0, type, NULL);
2700 attr = get_line_attr(type);
2701 wattrset(view->win, attr);
2703 if (opt_line_number || opt_tab_size < TABSIZE) {
2704 static char spaces[] = " ";
2705 int col_offset = 0, col = 0;
2707 if (opt_line_number) {
2708 unsigned long real_lineno = view->offset + lineno + 1;
2710 if (real_lineno == 1 ||
2711 (real_lineno % opt_num_interval) == 0) {
2712 wprintw(view->win, "%.*d", view->digits, real_lineno);
2715 waddnstr(view->win, spaces,
2716 MIN(view->digits, STRING_SIZE(spaces)));
2718 waddstr(view->win, ": ");
2719 col_offset = view->digits + 2;
2722 while (text && col_offset + col < view->width) {
2723 int cols_max = view->width - col_offset - col;
2727 if (*text == '\t') {
2729 assert(sizeof(spaces) > TABSIZE);
2731 cols = opt_tab_size - (col % opt_tab_size);
2734 text = strchr(text, '\t');
2735 cols = line ? text - pos : strlen(pos);
2738 waddnstr(view->win, pos, MIN(cols, cols_max));
2743 draw_text(view, text, view->width, TRUE, selected);
2750 add_describe_ref(char *buf, size_t *bufpos, char *commit_id, const char *sep)
2752 char refbuf[SIZEOF_STR];
2756 if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id))
2759 pipe = popen(refbuf, "r");
2763 if ((ref = fgets(refbuf, sizeof(refbuf), pipe)))
2764 ref = chomp_string(ref);
2770 /* This is the only fatal call, since it can "corrupt" the buffer. */
2771 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
2778 add_pager_refs(struct view *view, struct line *line)
2780 char buf[SIZEOF_STR];
2781 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
2783 size_t bufpos = 0, refpos = 0;
2784 const char *sep = "Refs: ";
2785 bool is_tag = FALSE;
2787 assert(line->type == LINE_COMMIT);
2789 refs = get_refs(commit_id);
2791 if (view == VIEW(REQ_VIEW_DIFF))
2792 goto try_add_describe_ref;
2797 struct ref *ref = refs[refpos];
2798 char *fmt = ref->tag ? "%s[%s]" :
2799 ref->remote ? "%s<%s>" : "%s%s";
2801 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
2806 } while (refs[refpos++]->next);
2808 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
2809 try_add_describe_ref:
2810 /* Add <tag>-g<commit_id> "fake" reference. */
2811 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
2818 if (!realloc_lines(view, view->line_size + 1))
2821 add_line_text(view, buf, LINE_PP_REFS);
2825 pager_read(struct view *view, char *data)
2832 line = add_line_text(view, data, get_line_type(data));
2836 if (line->type == LINE_COMMIT &&
2837 (view == VIEW(REQ_VIEW_DIFF) ||
2838 view == VIEW(REQ_VIEW_LOG)))
2839 add_pager_refs(view, line);
2845 pager_request(struct view *view, enum request request, struct line *line)
2849 if (request != REQ_ENTER)
2852 if (line->type == LINE_COMMIT &&
2853 (view == VIEW(REQ_VIEW_LOG) ||
2854 view == VIEW(REQ_VIEW_PAGER))) {
2855 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
2859 /* Always scroll the view even if it was split. That way
2860 * you can use Enter to scroll through the log view and
2861 * split open each commit diff. */
2862 scroll_view(view, REQ_SCROLL_LINE_DOWN);
2864 /* FIXME: A minor workaround. Scrolling the view will call report("")
2865 * but if we are scrolling a non-current view this won't properly
2866 * update the view title. */
2868 update_view_title(view);
2874 pager_grep(struct view *view, struct line *line)
2877 char *text = line->data;
2882 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
2889 pager_select(struct view *view, struct line *line)
2891 if (line->type == LINE_COMMIT) {
2892 char *text = (char *)line->data + STRING_SIZE("commit ");
2894 if (view != VIEW(REQ_VIEW_PAGER))
2895 string_copy_rev(view->ref, text);
2896 string_copy_rev(ref_commit, text);
2900 static struct view_ops pager_ops = {
2916 help_open(struct view *view)
2919 int lines = ARRAY_SIZE(req_info) + 2;
2922 if (view->lines > 0)
2925 for (i = 0; i < ARRAY_SIZE(req_info); i++)
2926 if (!req_info[i].request)
2929 lines += run_requests + 1;
2931 view->line = calloc(lines, sizeof(*view->line));
2935 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
2937 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
2940 if (req_info[i].request == REQ_NONE)
2943 if (!req_info[i].request) {
2944 add_line_text(view, "", LINE_DEFAULT);
2945 add_line_text(view, req_info[i].help, LINE_DEFAULT);
2949 key = get_key(req_info[i].request);
2951 key = "(no key defined)";
2953 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
2956 add_line_text(view, buf, LINE_DEFAULT);
2960 add_line_text(view, "", LINE_DEFAULT);
2961 add_line_text(view, "External commands:", LINE_DEFAULT);
2964 for (i = 0; i < run_requests; i++) {
2965 struct run_request *req = get_run_request(REQ_NONE + i + 1);
2971 key = get_key_name(req->key);
2973 key = "(no key defined)";
2975 if (!string_format(buf, " %-10s %-14s `%s`",
2976 keymap_table[req->keymap].name,
2980 add_line_text(view, buf, LINE_DEFAULT);
2986 static struct view_ops help_ops = {
3001 struct tree_stack_entry {
3002 struct tree_stack_entry *prev; /* Entry below this in the stack */
3003 unsigned long lineno; /* Line number to restore */
3004 char *name; /* Position of name in opt_path */
3007 /* The top of the path stack. */
3008 static struct tree_stack_entry *tree_stack = NULL;
3009 unsigned long tree_lineno = 0;
3012 pop_tree_stack_entry(void)
3014 struct tree_stack_entry *entry = tree_stack;
3016 tree_lineno = entry->lineno;
3018 tree_stack = entry->prev;
3023 push_tree_stack_entry(char *name, unsigned long lineno)
3025 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3026 size_t pathlen = strlen(opt_path);
3031 entry->prev = tree_stack;
3032 entry->name = opt_path + pathlen;
3035 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3036 pop_tree_stack_entry();
3040 /* Move the current line to the first tree entry. */
3042 entry->lineno = lineno;
3045 /* Parse output from git-ls-tree(1):
3047 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3048 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3049 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3050 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3053 #define SIZEOF_TREE_ATTR \
3054 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3056 #define TREE_UP_FORMAT "040000 tree %s\t.."
3059 tree_compare_entry(enum line_type type1, char *name1,
3060 enum line_type type2, char *name2)
3062 if (type1 != type2) {
3063 if (type1 == LINE_TREE_DIR)
3068 return strcmp(name1, name2);
3072 tree_path(struct line *line)
3074 char *path = line->data;
3076 return path + SIZEOF_TREE_ATTR;
3080 tree_read(struct view *view, char *text)
3082 size_t textlen = text ? strlen(text) : 0;
3083 char buf[SIZEOF_STR];
3085 enum line_type type;
3086 bool first_read = view->lines == 0;
3090 if (textlen <= SIZEOF_TREE_ATTR)
3093 type = text[STRING_SIZE("100644 ")] == 't'
3094 ? LINE_TREE_DIR : LINE_TREE_FILE;
3097 /* Add path info line */
3098 if (!string_format(buf, "Directory path /%s", opt_path) ||
3099 !realloc_lines(view, view->line_size + 1) ||
3100 !add_line_text(view, buf, LINE_DEFAULT))
3103 /* Insert "link" to parent directory. */
3105 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
3106 !realloc_lines(view, view->line_size + 1) ||
3107 !add_line_text(view, buf, LINE_TREE_DIR))
3112 /* Strip the path part ... */
3114 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3115 size_t striplen = strlen(opt_path);
3116 char *path = text + SIZEOF_TREE_ATTR;
3118 if (pathlen > striplen)
3119 memmove(path, path + striplen,
3120 pathlen - striplen + 1);
3123 /* Skip "Directory ..." and ".." line. */
3124 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
3125 struct line *line = &view->line[pos];
3126 char *path1 = tree_path(line);
3127 char *path2 = text + SIZEOF_TREE_ATTR;
3128 int cmp = tree_compare_entry(line->type, path1, type, path2);
3133 text = strdup(text);
3137 if (view->lines > pos)
3138 memmove(&view->line[pos + 1], &view->line[pos],
3139 (view->lines - pos) * sizeof(*line));
3141 line = &view->line[pos];
3148 if (!add_line_text(view, text, type))
3151 if (tree_lineno > view->lineno) {
3152 view->lineno = tree_lineno;
3160 tree_request(struct view *view, enum request request, struct line *line)
3162 enum open_flags flags;
3164 if (request == REQ_VIEW_BLAME) {
3165 char *filename = tree_path(line);
3167 if (line->type == LINE_TREE_DIR) {
3168 report("Cannot show blame for directory %s", opt_path);
3172 string_copy(opt_ref, view->vid);
3173 string_format(opt_file, "%s%s", opt_path, filename);
3176 if (request == REQ_TREE_PARENT) {
3179 request = REQ_ENTER;
3180 line = &view->line[1];
3182 /* quit view if at top of tree */
3183 return REQ_VIEW_CLOSE;
3186 if (request != REQ_ENTER)
3189 /* Cleanup the stack if the tree view is at a different tree. */
3190 while (!*opt_path && tree_stack)
3191 pop_tree_stack_entry();
3193 switch (line->type) {
3195 /* Depending on whether it is a subdir or parent (updir?) link
3196 * mangle the path buffer. */
3197 if (line == &view->line[1] && *opt_path) {
3198 pop_tree_stack_entry();
3201 char *basename = tree_path(line);
3203 push_tree_stack_entry(basename, view->lineno);
3206 /* Trees and subtrees share the same ID, so they are not not
3207 * unique like blobs. */
3208 flags = OPEN_RELOAD;
3209 request = REQ_VIEW_TREE;
3212 case LINE_TREE_FILE:
3213 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3214 request = REQ_VIEW_BLOB;
3221 open_view(view, request, flags);
3222 if (request == REQ_VIEW_TREE) {
3223 view->lineno = tree_lineno;
3230 tree_select(struct view *view, struct line *line)
3232 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3234 if (line->type == LINE_TREE_FILE) {
3235 string_copy_rev(ref_blob, text);
3237 } else if (line->type != LINE_TREE_DIR) {
3241 string_copy_rev(view->ref, text);
3244 static struct view_ops tree_ops = {
3255 blob_read(struct view *view, char *line)
3259 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3262 static struct view_ops blob_ops = {
3275 * Loading the blame view is a two phase job:
3277 * 1. File content is read either using opt_file from the
3278 * filesystem or using git-cat-file.
3279 * 2. Then blame information is incrementally added by
3280 * reading output from git-blame.
3283 struct blame_commit {
3284 char id[SIZEOF_REV]; /* SHA1 ID. */
3285 char title[128]; /* First line of the commit message. */
3286 char author[75]; /* Author of the commit. */
3287 struct tm time; /* Date from the author ident. */
3288 char filename[128]; /* Name of file. */
3292 struct blame_commit *commit;
3293 unsigned int header:1;
3297 #define BLAME_CAT_FILE_CMD "git cat-file blob %s:%s"
3298 #define BLAME_INCREMENTAL_CMD "git blame --incremental %s %s"
3301 blame_open(struct view *view)
3303 char path[SIZEOF_STR];
3304 char ref[SIZEOF_STR] = "";
3306 if (sq_quote(path, 0, opt_file) >= sizeof(path))
3309 if (*opt_ref && sq_quote(ref, 0, opt_ref) >= sizeof(ref))
3313 if (!string_format(view->cmd, BLAME_CAT_FILE_CMD, ref, path))
3316 view->pipe = fopen(opt_file, "r");
3318 !string_format(view->cmd, BLAME_CAT_FILE_CMD, "HEAD", path))
3323 view->pipe = popen(view->cmd, "r");
3327 if (!string_format(view->cmd, BLAME_INCREMENTAL_CMD, ref, path))
3330 string_format(view->ref, "%s ...", opt_file);
3331 string_copy_rev(view->vid, opt_file);
3332 set_nonblocking_input(TRUE);
3337 for (i = 0; i < view->lines; i++)
3338 free(view->line[i].data);
3342 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
3343 view->offset = view->lines = view->lineno = 0;
3345 view->start_time = time(NULL);
3350 static struct blame_commit *
3351 get_blame_commit(struct view *view, const char *id)
3355 for (i = 0; i < view->lines; i++) {
3356 struct blame *blame = view->line[i].data;
3361 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3362 return blame->commit;
3366 struct blame_commit *commit = calloc(1, sizeof(*commit));
3369 string_ncopy(commit->id, id, SIZEOF_REV);
3375 parse_number(char **posref, size_t *number, size_t min, size_t max)
3377 char *pos = *posref;
3380 pos = strchr(pos + 1, ' ');
3381 if (!pos || !isdigit(pos[1]))
3383 *number = atoi(pos + 1);
3384 if (*number < min || *number > max)
3391 static struct blame_commit *
3392 parse_blame_commit(struct view *view, char *text, int *blamed)
3394 struct blame_commit *commit;
3395 struct blame *blame;
3396 char *pos = text + SIZEOF_REV - 1;
3400 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3403 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3404 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3407 commit = get_blame_commit(view, text);
3413 struct line *line = &view->line[lineno + group - 1];
3416 blame->commit = commit;
3417 blame->header = !group;
3425 blame_read_file(struct view *view, char *line)
3430 if (view->lines > 0)
3431 pipe = popen(view->cmd, "r");
3434 report("Failed to load blame data");
3443 size_t linelen = strlen(line);
3444 struct blame *blame = malloc(sizeof(*blame) + linelen);
3449 blame->commit = NULL;
3450 strncpy(blame->text, line, linelen);
3451 blame->text[linelen] = 0;
3452 return add_line_data(view, blame, LINE_BLAME_COMMIT) != NULL;
3457 match_blame_header(const char *name, char **line)
3459 size_t namelen = strlen(name);
3460 bool matched = !strncmp(name, *line, namelen);
3469 blame_read(struct view *view, char *line)
3471 static struct blame_commit *commit = NULL;
3472 static int blamed = 0;
3473 static time_t author_time;
3476 return blame_read_file(view, line);
3482 string_format(view->ref, "%s", view->vid);
3483 if (view_is_displayed(view)) {
3484 update_view_title(view);
3485 redraw_view_from(view, 0);
3491 commit = parse_blame_commit(view, line, &blamed);
3492 string_format(view->ref, "%s %2d%%", view->vid,
3493 blamed * 100 / view->lines);
3495 } else if (match_blame_header("author ", &line)) {
3496 string_ncopy(commit->author, line, strlen(line));
3498 } else if (match_blame_header("author-time ", &line)) {
3499 author_time = (time_t) atol(line);
3501 } else if (match_blame_header("author-tz ", &line)) {
3504 tz = ('0' - line[1]) * 60 * 60 * 10;
3505 tz += ('0' - line[2]) * 60 * 60;
3506 tz += ('0' - line[3]) * 60;
3507 tz += ('0' - line[4]) * 60;
3513 gmtime_r(&author_time, &commit->time);
3515 } else if (match_blame_header("summary ", &line)) {
3516 string_ncopy(commit->title, line, strlen(line));
3518 } else if (match_blame_header("filename ", &line)) {
3519 string_ncopy(commit->filename, line, strlen(line));
3527 blame_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
3529 struct blame *blame = line->data;
3532 wmove(view->win, lineno, 0);
3535 wattrset(view->win, get_line_attr(LINE_CURSOR));
3536 wchgat(view->win, -1, 0, LINE_CURSOR, NULL);
3538 wattrset(view->win, A_NORMAL);
3545 wattrset(view->win, get_line_attr(LINE_MAIN_DATE));
3546 if (blame->commit) {
3547 char buf[DATE_COLS + 1];
3550 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &blame->commit->time);
3551 n = draw_text(view, buf, view->width - col, FALSE, selected);
3552 draw_text(view, " ", view->width - col - n, FALSE, selected);
3556 wmove(view->win, lineno, col);
3557 if (col >= view->width)
3562 int max = MIN(AUTHOR_COLS - 1, view->width - col);
3565 wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR));
3567 draw_text(view, blame->commit->author, max, TRUE, selected);
3569 if (col >= view->width)
3571 wmove(view->win, lineno, col);
3575 int max = MIN(ID_COLS - 1, view->width - col);
3578 wattrset(view->win, get_line_attr(LINE_BLAME_ID));
3580 draw_text(view, blame->commit->id, max, FALSE, -1);
3582 if (col >= view->width)
3584 wmove(view->win, lineno, col);
3588 unsigned long real_lineno = view->offset + lineno + 1;
3589 char number[10] = " ";
3590 int max = MIN(view->digits, STRING_SIZE(number));
3591 bool showtrimmed = FALSE;
3593 if (real_lineno == 1 ||
3594 (real_lineno % opt_num_interval) == 0) {
3595 char fmt[] = "%1ld";
3597 if (view->digits <= 9)
3598 fmt[1] = '0' + view->digits;
3600 if (!string_format(number, fmt, real_lineno))
3605 if (max > view->width - col)
3606 max = view->width - col;
3608 wattrset(view->win, get_line_attr(LINE_BLAME_LINENO));
3609 col += draw_text(view, number, max, showtrimmed, selected);
3610 if (col >= view->width)
3615 wattrset(view->win, A_NORMAL);
3617 if (col >= view->width)
3619 waddch(view->win, ACS_VLINE);
3621 if (col >= view->width)
3623 waddch(view->win, ' ');
3625 col += draw_text(view, blame->text, view->width - col, TRUE, selected);
3631 blame_request(struct view *view, enum request request, struct line *line)
3633 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3634 struct blame *blame = line->data;
3638 if (!blame->commit) {
3639 report("No commit loaded yet");
3643 if (!strcmp(blame->commit->id, NULL_ID)) {
3644 char path[SIZEOF_STR];
3646 if (sq_quote(path, 0, view->vid) >= sizeof(path))
3648 string_format(opt_cmd, "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s 2>/dev/null", path);
3651 open_view(view, REQ_VIEW_DIFF, flags);
3662 blame_grep(struct view *view, struct line *line)
3664 struct blame *blame = line->data;
3665 struct blame_commit *commit = blame->commit;
3668 #define MATCH(text) \
3669 (*text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3672 char buf[DATE_COLS + 1];
3674 if (MATCH(commit->title) ||
3675 MATCH(commit->author) ||
3679 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
3684 return MATCH(blame->text);
3690 blame_select(struct view *view, struct line *line)
3692 struct blame *blame = line->data;
3693 struct blame_commit *commit = blame->commit;
3698 if (!strcmp(commit->id, NULL_ID))
3699 string_ncopy(ref_commit, "HEAD", 4);
3701 string_copy_rev(ref_commit, commit->id);
3704 static struct view_ops blame_ops = {
3722 char rev[SIZEOF_REV];
3723 char name[SIZEOF_STR];
3727 char rev[SIZEOF_REV];
3728 char name[SIZEOF_STR];
3732 static char status_onbranch[SIZEOF_STR];
3733 static struct status stage_status;
3734 static enum line_type stage_line_type;
3736 /* Get fields from the diff line:
3737 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3740 status_get_diff(struct status *file, char *buf, size_t bufsize)
3742 char *old_mode = buf + 1;
3743 char *new_mode = buf + 8;
3744 char *old_rev = buf + 15;
3745 char *new_rev = buf + 56;
3746 char *status = buf + 97;
3749 old_mode[-1] != ':' ||
3750 new_mode[-1] != ' ' ||
3751 old_rev[-1] != ' ' ||
3752 new_rev[-1] != ' ' ||
3756 file->status = *status;
3758 string_copy_rev(file->old.rev, old_rev);
3759 string_copy_rev(file->new.rev, new_rev);
3761 file->old.mode = strtoul(old_mode, NULL, 8);
3762 file->new.mode = strtoul(new_mode, NULL, 8);
3764 file->old.name[0] = file->new.name[0] = 0;
3770 status_run(struct view *view, const char cmd[], char status, enum line_type type)
3772 struct status *file = NULL;
3773 struct status *unmerged = NULL;
3774 char buf[SIZEOF_STR * 4];
3778 pipe = popen(cmd, "r");
3782 add_line_data(view, NULL, type);
3784 while (!feof(pipe) && !ferror(pipe)) {
3788 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3791 bufsize += readsize;
3793 /* Process while we have NUL chars. */
3794 while ((sep = memchr(buf, 0, bufsize))) {
3795 size_t sepsize = sep - buf + 1;
3798 if (!realloc_lines(view, view->line_size + 1))
3801 file = calloc(1, sizeof(*file));
3805 add_line_data(view, file, type);
3808 /* Parse diff info part. */
3810 file->status = status;
3812 string_copy(file->old.rev, NULL_ID);
3814 } else if (!file->status) {
3815 if (!status_get_diff(file, buf, sepsize))
3819 memmove(buf, sep + 1, bufsize);
3821 sep = memchr(buf, 0, bufsize);
3824 sepsize = sep - buf + 1;
3826 /* Collapse all 'M'odified entries that
3827 * follow a associated 'U'nmerged entry.
3829 if (file->status == 'U') {
3832 } else if (unmerged) {
3833 int collapse = !strcmp(buf, unmerged->new.name);
3844 /* Grab the old name for rename/copy. */
3845 if (!*file->old.name &&
3846 (file->status == 'R' || file->status == 'C')) {
3847 sepsize = sep - buf + 1;
3848 string_ncopy(file->old.name, buf, sepsize);
3850 memmove(buf, sep + 1, bufsize);
3852 sep = memchr(buf, 0, bufsize);
3855 sepsize = sep - buf + 1;
3858 /* git-ls-files just delivers a NUL separated
3859 * list of file names similar to the second half
3860 * of the git-diff-* output. */
3861 string_ncopy(file->new.name, buf, sepsize);
3862 if (!*file->old.name)
3863 string_copy(file->old.name, file->new.name);
3865 memmove(buf, sep + 1, bufsize);
3876 if (!view->line[view->lines - 1].data)
3877 add_line_data(view, NULL, LINE_STAT_NONE);
3883 /* Don't show unmerged entries in the staged section. */
3884 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD"
3885 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
3886 #define STATUS_LIST_OTHER_CMD \
3887 "git ls-files -z --others --exclude-per-directory=.gitignore"
3888 #define STATUS_LIST_NO_HEAD_CMD \
3889 "git ls-files -z --cached --exclude-per-directory=.gitignore"
3891 #define STATUS_DIFF_INDEX_SHOW_CMD \
3892 "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null"
3894 #define STATUS_DIFF_FILES_SHOW_CMD \
3895 "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null"
3897 #define STATUS_DIFF_NO_HEAD_SHOW_CMD \
3898 "git diff --no-color --patch-with-stat /dev/null %s 2>/dev/null"
3900 /* First parse staged info using git-diff-index(1), then parse unstaged
3901 * info using git-diff-files(1), and finally untracked files using
3902 * git-ls-files(1). */
3904 status_open(struct view *view)
3906 struct stat statbuf;
3907 char exclude[SIZEOF_STR];
3908 char indexcmd[SIZEOF_STR] = STATUS_DIFF_INDEX_CMD;
3909 char othercmd[SIZEOF_STR] = STATUS_LIST_OTHER_CMD;
3910 unsigned long prev_lineno = view->lineno;
3911 char indexstatus = 0;
3914 for (i = 0; i < view->lines; i++)
3915 free(view->line[i].data);
3917 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
3920 if (!realloc_lines(view, view->line_size + 7))
3923 add_line_data(view, NULL, LINE_STAT_HEAD);
3925 string_copy(status_onbranch, "Initial commit");
3926 else if (!*opt_head)
3927 string_copy(status_onbranch, "Not currently on any branch");
3928 else if (!string_format(status_onbranch, "On branch %s", opt_head))
3932 string_copy(indexcmd, STATUS_LIST_NO_HEAD_CMD);
3936 if (!string_format(exclude, "%s/info/exclude", opt_git_dir))
3939 if (stat(exclude, &statbuf) >= 0) {
3940 size_t cmdsize = strlen(othercmd);
3942 if (!string_format_from(othercmd, &cmdsize, " %s", "--exclude-from=") ||
3943 sq_quote(othercmd, cmdsize, exclude) >= sizeof(othercmd))
3946 cmdsize = strlen(indexcmd);
3948 (!string_format_from(indexcmd, &cmdsize, " %s", "--exclude-from=") ||
3949 sq_quote(indexcmd, cmdsize, exclude) >= sizeof(indexcmd)))
3953 system("git update-index -q --refresh");
3955 if (!status_run(view, indexcmd, indexstatus, LINE_STAT_STAGED) ||
3956 !status_run(view, STATUS_DIFF_FILES_CMD, 0, LINE_STAT_UNSTAGED) ||
3957 !status_run(view, othercmd, '?', LINE_STAT_UNTRACKED))
3960 /* If all went well restore the previous line number to stay in
3961 * the context or select a line with something that can be
3963 if (prev_lineno >= view->lines)
3964 prev_lineno = view->lines - 1;
3965 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
3967 while (prev_lineno > 0 && !view->line[prev_lineno].data)
3970 /* If the above fails, always skip the "On branch" line. */
3971 if (prev_lineno < view->lines)
3972 view->lineno = prev_lineno;
3976 if (view->lineno < view->offset)
3977 view->offset = view->lineno;
3978 else if (view->offset + view->height <= view->lineno)
3979 view->offset = view->lineno - view->height + 1;
3985 status_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
3987 struct status *status = line->data;
3989 wmove(view->win, lineno, 0);
3992 wattrset(view->win, get_line_attr(LINE_CURSOR));
3993 wchgat(view->win, -1, 0, LINE_CURSOR, NULL);
3995 } else if (line->type == LINE_STAT_HEAD) {
3996 wattrset(view->win, get_line_attr(LINE_STAT_HEAD));
3997 wchgat(view->win, -1, 0, LINE_STAT_HEAD, NULL);
3999 } else if (!status && line->type != LINE_STAT_NONE) {
4000 wattrset(view->win, get_line_attr(LINE_STAT_SECTION));
4001 wchgat(view->win, -1, 0, LINE_STAT_SECTION, NULL);
4004 wattrset(view->win, get_line_attr(line->type));
4010 switch (line->type) {
4011 case LINE_STAT_STAGED:
4012 text = "Changes to be committed:";
4015 case LINE_STAT_UNSTAGED:
4016 text = "Changed but not updated:";
4019 case LINE_STAT_UNTRACKED:
4020 text = "Untracked files:";
4023 case LINE_STAT_NONE:
4024 text = " (no files)";
4027 case LINE_STAT_HEAD:
4028 text = status_onbranch;
4035 draw_text(view, text, view->width, TRUE, selected);
4039 waddch(view->win, status->status);
4041 wattrset(view->win, A_NORMAL);
4042 wmove(view->win, lineno, 4);
4043 if (view->width < 5)
4046 draw_text(view, status->new.name, view->width - 5, TRUE, selected);
4051 status_enter(struct view *view, struct line *line)
4053 struct status *status = line->data;
4054 char oldpath[SIZEOF_STR] = "";
4055 char newpath[SIZEOF_STR] = "";
4059 if (line->type == LINE_STAT_NONE ||
4060 (!status && line[1].type == LINE_STAT_NONE)) {
4061 report("No file to diff");
4066 if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath))
4068 /* Diffs for unmerged entries are empty when pasing the
4069 * new path, so leave it empty. */
4070 if (status->status != 'U' &&
4071 sq_quote(newpath, 0, status->new.name) >= sizeof(newpath))
4076 line->type != LINE_STAT_UNTRACKED &&
4077 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
4080 switch (line->type) {
4081 case LINE_STAT_STAGED:
4083 if (!string_format_from(opt_cmd, &cmdsize,
4084 STATUS_DIFF_NO_HEAD_SHOW_CMD,
4088 if (!string_format_from(opt_cmd, &cmdsize,
4089 STATUS_DIFF_INDEX_SHOW_CMD,
4095 info = "Staged changes to %s";
4097 info = "Staged changes";
4100 case LINE_STAT_UNSTAGED:
4101 if (!string_format_from(opt_cmd, &cmdsize,
4102 STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath))
4105 info = "Unstaged changes to %s";
4107 info = "Unstaged changes";
4110 case LINE_STAT_UNTRACKED:
4115 report("No file to show");
4119 opt_pipe = fopen(status->new.name, "r");
4120 info = "Untracked file %s";
4123 case LINE_STAT_HEAD:
4127 die("line type %d not handled in switch", line->type);
4130 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | OPEN_SPLIT);
4131 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4133 stage_status = *status;
4135 memset(&stage_status, 0, sizeof(stage_status));
4138 stage_line_type = line->type;
4139 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4147 status_update_prepare(enum line_type type)
4149 char cmd[SIZEOF_STR];
4153 type != LINE_STAT_UNTRACKED &&
4154 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4158 case LINE_STAT_STAGED:
4159 string_add(cmd, cmdsize, "git update-index -z --index-info");
4162 case LINE_STAT_UNSTAGED:
4163 case LINE_STAT_UNTRACKED:
4164 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
4168 die("line type %d not handled in switch", type);
4171 return popen(cmd, "w");
4175 status_update_write(FILE *pipe, struct status *status, enum line_type type)
4177 char buf[SIZEOF_STR];
4182 case LINE_STAT_STAGED:
4183 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4186 status->old.name, 0))
4190 case LINE_STAT_UNSTAGED:
4191 case LINE_STAT_UNTRACKED:
4192 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4197 die("line type %d not handled in switch", type);
4200 while (!ferror(pipe) && written < bufsize) {
4201 written += fwrite(buf + written, 1, bufsize - written, pipe);
4204 return written == bufsize;
4208 status_update_file(struct status *status, enum line_type type)
4210 FILE *pipe = status_update_prepare(type);
4216 result = status_update_write(pipe, status, type);
4222 status_update_files(struct view *view, struct line *line)
4224 FILE *pipe = status_update_prepare(line->type);
4226 struct line *pos = view->line + view->lines;
4233 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4236 for (file = 0, done = 0; result && file < files; line++, file++) {
4237 int almost_done = file * 100 / files;
4239 if (almost_done > done) {
4241 string_format(view->ref, "updating file %u of %u (%d%% done)",
4243 update_view_title(view);
4245 result = status_update_write(pipe, line->data, line->type);
4253 status_update(struct view *view)
4255 struct line *line = &view->line[view->lineno];
4257 assert(view->lines);
4260 /* This should work even for the "On branch" line. */
4261 if (line < view->line + view->lines && !line[1].data) {
4262 report("Nothing to update");
4266 if (!status_update_files(view, line + 1))
4267 report("Failed to update file status");
4269 } else if (!status_update_file(line->data, line->type)) {
4270 report("Failed to update file status");
4277 status_request(struct view *view, enum request request, struct line *line)
4279 struct status *status = line->data;
4282 case REQ_STATUS_UPDATE:
4283 if (!status_update(view))
4287 case REQ_STATUS_MERGE:
4288 if (!status || status->status != 'U') {
4289 report("Merging only possible for files with unmerged status ('U').");
4292 open_mergetool(status->new.name);
4299 open_editor(status->status != '?', status->new.name);
4302 case REQ_VIEW_BLAME:
4304 string_copy(opt_file, status->new.name);
4310 /* After returning the status view has been split to
4311 * show the stage view. No further reloading is
4313 status_enter(view, line);
4317 /* Simply reload the view. */
4324 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4330 status_select(struct view *view, struct line *line)
4332 struct status *status = line->data;
4333 char file[SIZEOF_STR] = "all files";
4337 if (status && !string_format(file, "'%s'", status->new.name))
4340 if (!status && line[1].type == LINE_STAT_NONE)
4343 switch (line->type) {
4344 case LINE_STAT_STAGED:
4345 text = "Press %s to unstage %s for commit";
4348 case LINE_STAT_UNSTAGED:
4349 text = "Press %s to stage %s for commit";
4352 case LINE_STAT_UNTRACKED:
4353 text = "Press %s to stage %s for addition";
4356 case LINE_STAT_HEAD:
4357 case LINE_STAT_NONE:
4358 text = "Nothing to update";
4362 die("line type %d not handled in switch", line->type);
4365 if (status && status->status == 'U') {
4366 text = "Press %s to resolve conflict in %s";
4367 key = get_key(REQ_STATUS_MERGE);
4370 key = get_key(REQ_STATUS_UPDATE);
4373 string_format(view->ref, text, key, file);
4377 status_grep(struct view *view, struct line *line)
4379 struct status *status = line->data;
4380 enum { S_STATUS, S_NAME, S_END } state;
4387 for (state = S_STATUS; state < S_END; state++) {
4391 case S_NAME: text = status->new.name; break;
4393 buf[0] = status->status;
4401 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4408 static struct view_ops status_ops = {
4420 stage_diff_line(FILE *pipe, struct line *line)
4422 char *buf = line->data;
4423 size_t bufsize = strlen(buf);
4426 while (!ferror(pipe) && written < bufsize) {
4427 written += fwrite(buf + written, 1, bufsize - written, pipe);
4432 return written == bufsize;
4435 static struct line *
4436 stage_diff_hdr(struct view *view, struct line *line)
4438 int diff_hdr_dir = line->type == LINE_DIFF_CHUNK ? -1 : 1;
4439 struct line *diff_hdr;
4441 if (line->type == LINE_DIFF_CHUNK)
4442 diff_hdr = line - 1;
4444 diff_hdr = view->line + 1;
4446 while (diff_hdr > view->line && diff_hdr < view->line + view->lines) {
4447 if (diff_hdr->type == LINE_DIFF_HEADER)
4450 diff_hdr += diff_hdr_dir;
4457 stage_update_chunk(struct view *view, struct line *line)
4459 char cmd[SIZEOF_STR];
4461 struct line *diff_hdr, *diff_chunk, *diff_end;
4464 diff_hdr = stage_diff_hdr(view, line);
4469 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4472 if (!string_format_from(cmd, &cmdsize,
4473 "git apply --cached %s - && "
4474 "git update-index -q --unmerged --refresh 2>/dev/null",
4475 stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
4478 pipe = popen(cmd, "w");
4482 diff_end = view->line + view->lines;
4483 if (line->type != LINE_DIFF_CHUNK) {
4484 diff_chunk = diff_hdr;
4487 for (diff_chunk = line + 1; diff_chunk < diff_end; diff_chunk++)
4488 if (diff_chunk->type == LINE_DIFF_CHUNK ||
4489 diff_chunk->type == LINE_DIFF_HEADER)
4490 diff_end = diff_chunk;
4494 while (diff_hdr->type != LINE_DIFF_CHUNK) {
4495 switch (diff_hdr->type) {
4496 case LINE_DIFF_HEADER:
4497 case LINE_DIFF_INDEX:
4507 if (!stage_diff_line(pipe, diff_hdr++)) {
4514 while (diff_chunk < diff_end && stage_diff_line(pipe, diff_chunk))
4519 if (diff_chunk != diff_end)
4526 stage_update(struct view *view, struct line *line)
4528 if (!opt_no_head && stage_line_type != LINE_STAT_UNTRACKED &&
4529 (line->type == LINE_DIFF_CHUNK || !stage_status.status)) {
4530 if (!stage_update_chunk(view, line)) {
4531 report("Failed to apply chunk");
4535 } else if (!status_update_file(&stage_status, stage_line_type)) {
4536 report("Failed to update file");
4540 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4542 view = VIEW(REQ_VIEW_STATUS);
4543 if (view_is_displayed(view))
4544 status_enter(view, &view->line[view->lineno]);
4548 stage_request(struct view *view, enum request request, struct line *line)
4551 case REQ_STATUS_UPDATE:
4552 stage_update(view, line);
4556 if (!stage_status.new.name[0])
4559 open_editor(stage_status.status != '?', stage_status.new.name);
4562 case REQ_VIEW_BLAME:
4563 if (stage_status.new.name[0]) {
4564 string_copy(opt_file, stage_status.new.name);
4570 pager_request(view, request, line);
4580 static struct view_ops stage_ops = {
4596 char id[SIZEOF_REV]; /* SHA1 ID. */
4597 char title[128]; /* First line of the commit message. */
4598 char author[75]; /* Author of the commit. */
4599 struct tm time; /* Date from the author ident. */
4600 struct ref **refs; /* Repository references. */
4601 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
4602 size_t graph_size; /* The width of the graph array. */
4603 bool has_parents; /* Rewritten --parents seen. */
4606 /* Size of rev graph with no "padding" columns */
4607 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
4610 struct rev_graph *prev, *next, *parents;
4611 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
4613 struct commit *commit;
4615 unsigned int boundary:1;
4618 /* Parents of the commit being visualized. */
4619 static struct rev_graph graph_parents[4];
4621 /* The current stack of revisions on the graph. */
4622 static struct rev_graph graph_stacks[4] = {
4623 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
4624 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
4625 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
4626 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
4630 graph_parent_is_merge(struct rev_graph *graph)
4632 return graph->parents->size > 1;
4636 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
4638 struct commit *commit = graph->commit;
4640 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
4641 commit->graph[commit->graph_size++] = symbol;
4645 done_rev_graph(struct rev_graph *graph)
4647 if (graph_parent_is_merge(graph) &&
4648 graph->pos < graph->size - 1 &&
4649 graph->next->size == graph->size + graph->parents->size - 1) {
4650 size_t i = graph->pos + graph->parents->size - 1;
4652 graph->commit->graph_size = i * 2;
4653 while (i < graph->next->size - 1) {
4654 append_to_rev_graph(graph, ' ');
4655 append_to_rev_graph(graph, '\\');
4660 graph->size = graph->pos = 0;
4661 graph->commit = NULL;
4662 memset(graph->parents, 0, sizeof(*graph->parents));
4666 push_rev_graph(struct rev_graph *graph, char *parent)
4670 /* "Collapse" duplicate parents lines.
4672 * FIXME: This needs to also update update the drawn graph but
4673 * for now it just serves as a method for pruning graph lines. */
4674 for (i = 0; i < graph->size; i++)
4675 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
4678 if (graph->size < SIZEOF_REVITEMS) {
4679 string_copy_rev(graph->rev[graph->size++], parent);
4684 get_rev_graph_symbol(struct rev_graph *graph)
4688 if (graph->boundary)
4689 symbol = REVGRAPH_BOUND;
4690 else if (graph->parents->size == 0)
4691 symbol = REVGRAPH_INIT;
4692 else if (graph_parent_is_merge(graph))
4693 symbol = REVGRAPH_MERGE;
4694 else if (graph->pos >= graph->size)
4695 symbol = REVGRAPH_BRANCH;
4697 symbol = REVGRAPH_COMMIT;
4703 draw_rev_graph(struct rev_graph *graph)
4706 chtype separator, line;
4708 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
4709 static struct rev_filler fillers[] = {
4710 { ' ', REVGRAPH_LINE },
4715 chtype symbol = get_rev_graph_symbol(graph);
4716 struct rev_filler *filler;
4719 filler = &fillers[DEFAULT];
4721 for (i = 0; i < graph->pos; i++) {
4722 append_to_rev_graph(graph, filler->line);
4723 if (graph_parent_is_merge(graph->prev) &&
4724 graph->prev->pos == i)
4725 filler = &fillers[RSHARP];
4727 append_to_rev_graph(graph, filler->separator);
4730 /* Place the symbol for this revision. */
4731 append_to_rev_graph(graph, symbol);
4733 if (graph->prev->size > graph->size)
4734 filler = &fillers[RDIAG];
4736 filler = &fillers[DEFAULT];
4740 for (; i < graph->size; i++) {
4741 append_to_rev_graph(graph, filler->separator);
4742 append_to_rev_graph(graph, filler->line);
4743 if (graph_parent_is_merge(graph->prev) &&
4744 i < graph->prev->pos + graph->parents->size)
4745 filler = &fillers[RSHARP];
4746 if (graph->prev->size > graph->size)
4747 filler = &fillers[LDIAG];
4750 if (graph->prev->size > graph->size) {
4751 append_to_rev_graph(graph, filler->separator);
4752 if (filler->line != ' ')
4753 append_to_rev_graph(graph, filler->line);
4757 /* Prepare the next rev graph */
4759 prepare_rev_graph(struct rev_graph *graph)
4763 /* First, traverse all lines of revisions up to the active one. */
4764 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
4765 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
4768 push_rev_graph(graph->next, graph->rev[graph->pos]);
4771 /* Interleave the new revision parent(s). */
4772 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
4773 push_rev_graph(graph->next, graph->parents->rev[i]);
4775 /* Lastly, put any remaining revisions. */
4776 for (i = graph->pos + 1; i < graph->size; i++)
4777 push_rev_graph(graph->next, graph->rev[i]);
4781 update_rev_graph(struct rev_graph *graph)
4783 /* If this is the finalizing update ... */
4785 prepare_rev_graph(graph);
4787 /* Graph visualization needs a one rev look-ahead,
4788 * so the first update doesn't visualize anything. */
4789 if (!graph->prev->commit)
4792 draw_rev_graph(graph->prev);
4793 done_rev_graph(graph->prev->prev);
4802 main_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
4804 char buf[DATE_COLS + 1];
4805 struct commit *commit = line->data;
4806 enum line_type type;
4811 if (!*commit->author)
4814 space = view->width;
4815 wmove(view->win, lineno, col);
4819 wattrset(view->win, get_line_attr(type));
4820 wchgat(view->win, -1, 0, type, NULL);
4822 type = LINE_MAIN_COMMIT;
4823 wattrset(view->win, get_line_attr(LINE_MAIN_DATE));
4829 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time);
4830 n = draw_text(view, buf, view->width - col, FALSE, selected);
4831 draw_text(view, " ", view->width - col - n, FALSE, selected);
4834 wmove(view->win, lineno, col);
4835 if (col >= view->width)
4838 if (type != LINE_CURSOR)
4839 wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR));
4844 max_len = view->width - col;
4845 if (max_len > AUTHOR_COLS - 1)
4846 max_len = AUTHOR_COLS - 1;
4847 draw_text(view, commit->author, max_len, TRUE, selected);
4849 if (col >= view->width)
4853 if (opt_rev_graph && commit->graph_size) {
4854 size_t graph_size = view->width - col;
4857 if (type != LINE_CURSOR)
4858 wattrset(view->win, get_line_attr(LINE_MAIN_REVGRAPH));
4859 wmove(view->win, lineno, col);
4860 if (graph_size > commit->graph_size)
4861 graph_size = commit->graph_size;
4862 /* Using waddch() instead of waddnstr() ensures that
4863 * they'll be rendered correctly for the cursor line. */
4864 for (i = 0; i < graph_size; i++)
4865 waddch(view->win, commit->graph[i]);
4867 col += commit->graph_size + 1;
4868 if (col >= view->width)
4870 waddch(view->win, ' ');
4872 if (type != LINE_CURSOR)
4873 wattrset(view->win, A_NORMAL);
4875 wmove(view->win, lineno, col);
4877 if (opt_show_refs && commit->refs) {
4881 if (type == LINE_CURSOR)
4883 else if (commit->refs[i]->head)
4884 wattrset(view->win, get_line_attr(LINE_MAIN_HEAD));
4885 else if (commit->refs[i]->ltag)
4886 wattrset(view->win, get_line_attr(LINE_MAIN_LOCAL_TAG));
4887 else if (commit->refs[i]->tag)
4888 wattrset(view->win, get_line_attr(LINE_MAIN_TAG));
4889 else if (commit->refs[i]->remote)
4890 wattrset(view->win, get_line_attr(LINE_MAIN_REMOTE));
4892 wattrset(view->win, get_line_attr(LINE_MAIN_REF));
4894 col += draw_text(view, "[", view->width - col, TRUE, selected);
4895 col += draw_text(view, commit->refs[i]->name, view->width - col,
4897 col += draw_text(view, "]", view->width - col, TRUE, selected);
4898 if (type != LINE_CURSOR)
4899 wattrset(view->win, A_NORMAL);
4900 col += draw_text(view, " ", view->width - col, TRUE, selected);
4901 if (col >= view->width)
4903 } while (commit->refs[i++]->next);
4906 if (type != LINE_CURSOR)
4907 wattrset(view->win, get_line_attr(type));
4909 draw_text(view, commit->title, view->width - col, TRUE, selected);
4913 /* Reads git log --pretty=raw output and parses it into the commit struct. */
4915 main_read(struct view *view, char *line)
4917 static struct rev_graph *graph = graph_stacks;
4918 enum line_type type;
4919 struct commit *commit;
4922 update_rev_graph(graph);
4926 type = get_line_type(line);
4927 if (type == LINE_COMMIT) {
4928 commit = calloc(1, sizeof(struct commit));
4932 line += STRING_SIZE("commit ");
4934 graph->boundary = 1;
4938 string_copy_rev(commit->id, line);
4939 commit->refs = get_refs(commit->id);
4940 graph->commit = commit;
4941 add_line_data(view, commit, LINE_MAIN_COMMIT);
4943 while ((line = strchr(line, ' '))) {
4945 push_rev_graph(graph->parents, line);
4946 commit->has_parents = TRUE;
4953 commit = view->line[view->lines - 1].data;
4957 if (commit->has_parents)
4959 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
4964 /* Parse author lines where the name may be empty:
4965 * author <email@address.tld> 1138474660 +0100
4967 char *ident = line + STRING_SIZE("author ");
4968 char *nameend = strchr(ident, '<');
4969 char *emailend = strchr(ident, '>');
4971 if (!nameend || !emailend)
4974 update_rev_graph(graph);
4975 graph = graph->next;
4977 *nameend = *emailend = 0;
4978 ident = chomp_string(ident);
4980 ident = chomp_string(nameend + 1);
4985 string_ncopy(commit->author, ident, strlen(ident));
4987 /* Parse epoch and timezone */
4988 if (emailend[1] == ' ') {
4989 char *secs = emailend + 2;
4990 char *zone = strchr(secs, ' ');
4991 time_t time = (time_t) atol(secs);
4993 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
4997 tz = ('0' - zone[1]) * 60 * 60 * 10;
4998 tz += ('0' - zone[2]) * 60 * 60;
4999 tz += ('0' - zone[3]) * 60;
5000 tz += ('0' - zone[4]) * 60;
5008 gmtime_r(&time, &commit->time);
5013 /* Fill in the commit title if it has not already been set. */
5014 if (commit->title[0])
5017 /* Require titles to start with a non-space character at the
5018 * offset used by git log. */
5019 if (strncmp(line, " ", 4))
5022 /* Well, if the title starts with a whitespace character,
5023 * try to be forgiving. Otherwise we end up with no title. */
5024 while (isspace(*line))
5028 /* FIXME: More graceful handling of titles; append "..." to
5029 * shortened titles, etc. */
5031 string_ncopy(commit->title, line, strlen(line));
5038 main_request(struct view *view, enum request request, struct line *line)
5040 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5042 if (request == REQ_ENTER)
5043 open_view(view, REQ_VIEW_DIFF, flags);
5051 main_grep(struct view *view, struct line *line)
5053 struct commit *commit = line->data;
5054 enum { S_TITLE, S_AUTHOR, S_DATE, S_END } state;
5055 char buf[DATE_COLS + 1];
5058 for (state = S_TITLE; state < S_END; state++) {
5062 case S_TITLE: text = commit->title; break;
5063 case S_AUTHOR: text = commit->author; break;
5065 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5074 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5082 main_select(struct view *view, struct line *line)
5084 struct commit *commit = line->data;
5086 string_copy_rev(view->ref, commit->id);
5087 string_copy_rev(ref_commit, view->ref);
5090 static struct view_ops main_ops = {
5102 * Unicode / UTF-8 handling
5104 * NOTE: Much of the following code for dealing with unicode is derived from
5105 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5106 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5109 /* I've (over)annotated a lot of code snippets because I am not entirely
5110 * confident that the approach taken by this small UTF-8 interface is correct.
5114 unicode_width(unsigned long c)
5117 (c <= 0x115f /* Hangul Jamo */
5120 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5122 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5123 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5124 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5125 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5126 || (c >= 0xffe0 && c <= 0xffe6)
5127 || (c >= 0x20000 && c <= 0x2fffd)
5128 || (c >= 0x30000 && c <= 0x3fffd)))
5132 return opt_tab_size;
5137 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5138 * Illegal bytes are set one. */
5139 static const unsigned char utf8_bytes[256] = {
5140 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,
5141 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,
5142 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,
5143 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,
5144 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,
5145 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,
5146 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,
5147 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,
5150 /* Decode UTF-8 multi-byte representation into a unicode character. */
5151 static inline unsigned long
5152 utf8_to_unicode(const char *string, size_t length)
5154 unsigned long unicode;
5158 unicode = string[0];
5161 unicode = (string[0] & 0x1f) << 6;
5162 unicode += (string[1] & 0x3f);
5165 unicode = (string[0] & 0x0f) << 12;
5166 unicode += ((string[1] & 0x3f) << 6);
5167 unicode += (string[2] & 0x3f);
5170 unicode = (string[0] & 0x0f) << 18;
5171 unicode += ((string[1] & 0x3f) << 12);
5172 unicode += ((string[2] & 0x3f) << 6);
5173 unicode += (string[3] & 0x3f);
5176 unicode = (string[0] & 0x0f) << 24;
5177 unicode += ((string[1] & 0x3f) << 18);
5178 unicode += ((string[2] & 0x3f) << 12);
5179 unicode += ((string[3] & 0x3f) << 6);
5180 unicode += (string[4] & 0x3f);
5183 unicode = (string[0] & 0x01) << 30;
5184 unicode += ((string[1] & 0x3f) << 24);
5185 unicode += ((string[2] & 0x3f) << 18);
5186 unicode += ((string[3] & 0x3f) << 12);
5187 unicode += ((string[4] & 0x3f) << 6);
5188 unicode += (string[5] & 0x3f);
5191 die("Invalid unicode length");
5194 /* Invalid characters could return the special 0xfffd value but NUL
5195 * should be just as good. */
5196 return unicode > 0xffff ? 0 : unicode;
5199 /* Calculates how much of string can be shown within the given maximum width
5200 * and sets trimmed parameter to non-zero value if all of string could not be
5201 * shown. If the reserve flag is TRUE, it will reserve at least one
5202 * trailing character, which can be useful when drawing a delimiter.
5204 * Returns the number of bytes to output from string to satisfy max_width. */
5206 utf8_length(const char *string, size_t max_width, int *trimmed, bool reserve)
5208 const char *start = string;
5209 const char *end = strchr(string, '\0');
5210 unsigned char last_bytes = 0;
5215 while (string < end) {
5216 int c = *(unsigned char *) string;
5217 unsigned char bytes = utf8_bytes[c];
5219 unsigned long unicode;
5221 if (string + bytes > end)
5224 /* Change representation to figure out whether
5225 * it is a single- or double-width character. */
5227 unicode = utf8_to_unicode(string, bytes);
5228 /* FIXME: Graceful handling of invalid unicode character. */
5232 ucwidth = unicode_width(unicode);
5234 if (width > max_width) {
5236 if (reserve && width - ucwidth == max_width) {
5237 string -= last_bytes;
5246 return string - start;
5254 /* Whether or not the curses interface has been initialized. */
5255 static bool cursed = FALSE;
5257 /* The status window is used for polling keystrokes. */
5258 static WINDOW *status_win;
5260 static bool status_empty = TRUE;
5262 /* Update status and title window. */
5264 report(const char *msg, ...)
5266 struct view *view = display[current_view];
5272 char buf[SIZEOF_STR];
5275 va_start(args, msg);
5276 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5277 buf[sizeof(buf) - 1] = 0;
5278 buf[sizeof(buf) - 2] = '.';
5279 buf[sizeof(buf) - 3] = '.';
5280 buf[sizeof(buf) - 4] = '.';
5286 if (!status_empty || *msg) {
5289 va_start(args, msg);
5291 wmove(status_win, 0, 0);
5293 vwprintw(status_win, msg, args);
5294 status_empty = FALSE;
5296 status_empty = TRUE;
5298 wclrtoeol(status_win);
5299 wrefresh(status_win);
5304 update_view_title(view);
5305 update_display_cursor(view);
5308 /* Controls when nodelay should be in effect when polling user input. */
5310 set_nonblocking_input(bool loading)
5312 static unsigned int loading_views;
5314 if ((loading == FALSE && loading_views-- == 1) ||
5315 (loading == TRUE && loading_views++ == 0))
5316 nodelay(status_win, loading);
5324 /* Initialize the curses library */
5325 if (isatty(STDIN_FILENO)) {
5326 cursed = !!initscr();
5328 /* Leave stdin and stdout alone when acting as a pager. */
5329 FILE *io = fopen("/dev/tty", "r+");
5332 die("Failed to open /dev/tty");
5333 cursed = !!newterm(NULL, io, io);
5337 die("Failed to initialize curses");
5339 nonl(); /* Tell curses not to do NL->CR/NL on output */
5340 cbreak(); /* Take input chars one at a time, no wait for \n */
5341 noecho(); /* Don't echo input */
5342 leaveok(stdscr, TRUE);
5347 getmaxyx(stdscr, y, x);
5348 status_win = newwin(1, 0, y - 1, 0);
5350 die("Failed to create status window");
5352 /* Enable keyboard mapping */
5353 keypad(status_win, TRUE);
5354 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5358 read_prompt(const char *prompt)
5360 enum { READING, STOP, CANCEL } status = READING;
5361 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
5364 while (status == READING) {
5370 foreach_view (view, i)
5375 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5376 wclrtoeol(status_win);
5378 /* Refresh, accept single keystroke of input */
5379 key = wgetch(status_win);
5384 status = pos ? STOP : CANCEL;
5402 if (pos >= sizeof(buf)) {
5403 report("Input string too long");
5408 buf[pos++] = (char) key;
5412 /* Clear the status window */
5413 status_empty = FALSE;
5416 if (status == CANCEL)
5425 * Repository references
5428 static struct ref *refs = NULL;
5429 static size_t refs_alloc = 0;
5430 static size_t refs_size = 0;
5432 /* Id <-> ref store */
5433 static struct ref ***id_refs = NULL;
5434 static size_t id_refs_alloc = 0;
5435 static size_t id_refs_size = 0;
5437 static struct ref **
5440 struct ref ***tmp_id_refs;
5441 struct ref **ref_list = NULL;
5442 size_t ref_list_alloc = 0;
5443 size_t ref_list_size = 0;
5446 for (i = 0; i < id_refs_size; i++)
5447 if (!strcmp(id, id_refs[i][0]->id))
5450 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
5455 id_refs = tmp_id_refs;
5457 for (i = 0; i < refs_size; i++) {
5460 if (strcmp(id, refs[i].id))
5463 tmp = realloc_items(ref_list, &ref_list_alloc,
5464 ref_list_size + 1, sizeof(*ref_list));
5472 if (ref_list_size > 0)
5473 ref_list[ref_list_size - 1]->next = 1;
5474 ref_list[ref_list_size] = &refs[i];
5476 /* XXX: The properties of the commit chains ensures that we can
5477 * safely modify the shared ref. The repo references will
5478 * always be similar for the same id. */
5479 ref_list[ref_list_size]->next = 0;
5484 id_refs[id_refs_size++] = ref_list;
5490 read_ref(char *id, size_t idlen, char *name, size_t namelen)
5495 bool remote = FALSE;
5496 bool check_replace = FALSE;
5499 if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) {
5500 if (!strcmp(name + namelen - 3, "^{}")) {
5503 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
5504 check_replace = TRUE;
5510 namelen -= STRING_SIZE("refs/tags/");
5511 name += STRING_SIZE("refs/tags/");
5513 } else if (!strncmp(name, "refs/remotes/", STRING_SIZE("refs/remotes/"))) {
5515 namelen -= STRING_SIZE("refs/remotes/");
5516 name += STRING_SIZE("refs/remotes/");
5518 } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5519 namelen -= STRING_SIZE("refs/heads/");
5520 name += STRING_SIZE("refs/heads/");
5521 head = !strncmp(opt_head, name, namelen);
5523 } else if (!strcmp(name, "HEAD")) {
5524 opt_no_head = FALSE;
5528 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
5529 /* it's an annotated tag, replace the previous sha1 with the
5530 * resolved commit id; relies on the fact git-ls-remote lists
5531 * the commit id of an annotated tag right beofre the commit id
5533 refs[refs_size - 1].ltag = ltag;
5534 string_copy_rev(refs[refs_size - 1].id, id);
5538 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
5542 ref = &refs[refs_size++];
5543 ref->name = malloc(namelen + 1);
5547 strncpy(ref->name, name, namelen);
5548 ref->name[namelen] = 0;
5551 ref->remote = remote;
5553 string_copy_rev(ref->id, id);
5561 const char *cmd_env = getenv("TIG_LS_REMOTE");
5562 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
5564 return read_properties(popen(cmd, "r"), "\t", read_ref);
5568 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
5570 if (!strcmp(name, "i18n.commitencoding"))
5571 string_ncopy(opt_encoding, value, valuelen);
5573 if (!strcmp(name, "core.editor"))
5574 string_ncopy(opt_editor, value, valuelen);
5580 load_repo_config(void)
5582 return read_properties(popen(GIT_CONFIG " --list", "r"),
5583 "=", read_repo_config_option);
5587 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
5589 if (!opt_git_dir[0]) {
5590 string_ncopy(opt_git_dir, name, namelen);
5592 } else if (opt_is_inside_work_tree == -1) {
5593 /* This can be 3 different values depending on the
5594 * version of git being used. If git-rev-parse does not
5595 * understand --is-inside-work-tree it will simply echo
5596 * the option else either "true" or "false" is printed.
5597 * Default to true for the unknown case. */
5598 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
5600 } else if (opt_cdup[0] == ' ') {
5601 string_ncopy(opt_cdup, name, namelen);
5603 if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5604 namelen -= STRING_SIZE("refs/heads/");
5605 name += STRING_SIZE("refs/heads/");
5606 string_ncopy(opt_head, name, namelen);
5614 load_repo_info(void)
5617 FILE *pipe = popen("git rev-parse --git-dir --is-inside-work-tree "
5618 " --show-cdup --symbolic-full-name HEAD 2>/dev/null", "r");
5620 /* XXX: The line outputted by "--show-cdup" can be empty so
5621 * initialize it to something invalid to make it possible to
5622 * detect whether it has been set or not. */
5625 result = read_properties(pipe, "=", read_repo_info);
5626 if (opt_cdup[0] == ' ')
5633 read_properties(FILE *pipe, const char *separators,
5634 int (*read_property)(char *, size_t, char *, size_t))
5636 char buffer[BUFSIZ];
5643 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
5648 name = chomp_string(name);
5649 namelen = strcspn(name, separators);
5651 if (name[namelen]) {
5653 value = chomp_string(name + namelen + 1);
5654 valuelen = strlen(value);
5661 state = read_property(name, namelen, value, valuelen);
5664 if (state != ERR && ferror(pipe))
5677 static void __NORETURN
5680 /* XXX: Restore tty modes and let the OS cleanup the rest! */
5686 static void __NORETURN
5687 die(const char *err, ...)
5693 va_start(args, err);
5694 fputs("tig: ", stderr);
5695 vfprintf(stderr, err, args);
5696 fputs("\n", stderr);
5703 warn(const char *msg, ...)
5707 va_start(args, msg);
5708 fputs("tig warning: ", stderr);
5709 vfprintf(stderr, msg, args);
5710 fputs("\n", stderr);
5715 main(int argc, char *argv[])
5718 enum request request;
5721 signal(SIGINT, quit);
5723 if (setlocale(LC_ALL, "")) {
5724 char *codeset = nl_langinfo(CODESET);
5726 string_ncopy(opt_codeset, codeset, strlen(codeset));
5729 if (load_repo_info() == ERR)
5730 die("Failed to load repo info.");
5732 if (load_options() == ERR)
5733 die("Failed to load user config.");
5735 /* Load the repo config file so options can be overwritten from
5736 * the command line. */
5737 if (load_repo_config() == ERR)
5738 die("Failed to load repo config.");
5740 if (!parse_options(argc, argv))
5743 /* Require a git repository unless when running in pager mode. */
5744 if (!opt_git_dir[0])
5745 die("Not a git repository");
5747 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
5750 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
5751 opt_iconv = iconv_open(opt_codeset, opt_encoding);
5752 if (opt_iconv == ICONV_NONE)
5753 die("Failed to initialize character set conversion");
5756 if (load_refs() == ERR)
5757 die("Failed to load refs.");
5759 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
5760 view->cmd_env = getenv(view->cmd_env);
5762 request = opt_request;
5766 while (view_driver(display[current_view], request)) {
5770 foreach_view (view, i)
5773 /* Refresh, accept single keystroke of input */
5774 key = wgetch(status_win);
5776 /* wgetch() with nodelay() enabled returns ERR when there's no
5783 request = get_keybinding(display[current_view]->keymap, key);
5785 /* Some low-level request handling. This keeps access to
5786 * status_win restricted. */
5790 char *cmd = read_prompt(":");
5792 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
5793 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
5794 opt_request = REQ_VIEW_DIFF;
5796 opt_request = REQ_VIEW_PAGER;
5805 case REQ_SEARCH_BACK:
5807 const char *prompt = request == REQ_SEARCH
5809 char *search = read_prompt(prompt);
5812 string_ncopy(opt_search, search, strlen(search));
5817 case REQ_SCREEN_RESIZE:
5821 getmaxyx(stdscr, height, width);
5823 /* Resize the status view and let the view driver take
5824 * care of resizing the displayed views. */
5825 wresize(status_win, 1, width);
5826 mvwin(status_win, height - 1, 0);
5827 wrefresh(status_win);