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
48 #ifdef HAVE_NCURSESW_NCURSES_H
49 #include <ncursesw/ncurses.h>
51 #ifdef HAVE_NCURSES_NCURSES_H
52 #include <ncurses/ncurses.h>
59 #define __NORETURN __attribute__((__noreturn__))
64 static void __NORETURN die(const char *err, ...);
65 static void warn(const char *msg, ...);
66 static void report(const char *msg, ...);
67 static int read_properties(FILE *pipe, const char *separators, int (*read)(char *, size_t, char *, size_t));
68 static void set_nonblocking_input(bool loading);
69 static size_t utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve);
70 static bool prompt_yesno(const char *prompt);
72 #define ABS(x) ((x) >= 0 ? (x) : -(x))
73 #define MIN(x, y) ((x) < (y) ? (x) : (y))
75 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
76 #define STRING_SIZE(x) (sizeof(x) - 1)
78 #define SIZEOF_STR 1024 /* Default string size. */
79 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
80 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL */
84 #define REVGRAPH_INIT 'I'
85 #define REVGRAPH_MERGE 'M'
86 #define REVGRAPH_BRANCH '+'
87 #define REVGRAPH_COMMIT '*'
88 #define REVGRAPH_BOUND '^'
90 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
92 /* This color name can be used to refer to the default term colors. */
93 #define COLOR_DEFAULT (-1)
95 #define ICONV_NONE ((iconv_t) -1)
97 #define ICONV_CONST /* nothing */
100 /* The format and size of the date column in the main view. */
101 #define DATE_FORMAT "%Y-%m-%d %H:%M"
102 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
104 #define AUTHOR_COLS 20
107 /* The default interval between line numbers. */
108 #define NUMBER_INTERVAL 5
112 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
114 #define NULL_ID "0000000000000000000000000000000000000000"
117 #define GIT_CONFIG "git config"
120 #define TIG_LS_REMOTE \
121 "git ls-remote . 2>/dev/null"
123 #define TIG_DIFF_CMD \
124 "git show --pretty=fuller --no-color --root --patch-with-stat --find-copies-harder -C %s 2>/dev/null"
126 #define TIG_LOG_CMD \
127 "git log --no-color --cc --stat -n100 %s 2>/dev/null"
129 #define TIG_MAIN_CMD \
130 "git log --no-color --topo-order --parents --pretty=raw %s 2>/dev/null"
132 #define TIG_TREE_CMD \
135 #define TIG_BLOB_CMD \
136 "git cat-file blob %s"
138 /* XXX: Needs to be defined to the empty string. */
139 #define TIG_HELP_CMD ""
140 #define TIG_PAGER_CMD ""
141 #define TIG_STATUS_CMD ""
142 #define TIG_STAGE_CMD ""
143 #define TIG_BLAME_CMD ""
145 /* Some ascii-shorthands fitted into the ncurses namespace. */
147 #define KEY_RETURN '\r'
152 char *name; /* Ref name; tag or head names are shortened. */
153 char id[SIZEOF_REV]; /* Commit SHA1 ID */
154 unsigned int head:1; /* Is it the current HEAD? */
155 unsigned int tag:1; /* Is it a tag? */
156 unsigned int ltag:1; /* If so, is the tag local? */
157 unsigned int remote:1; /* Is it a remote ref? */
158 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
159 unsigned int next:1; /* For ref lists: are there more refs? */
162 static struct ref **get_refs(char *id);
171 set_from_int_map(struct int_map *map, size_t map_size,
172 int *value, const char *name, int namelen)
177 for (i = 0; i < map_size; i++)
178 if (namelen == map[i].namelen &&
179 !strncasecmp(name, map[i].name, namelen)) {
180 *value = map[i].value;
193 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
195 if (srclen > dstlen - 1)
198 strncpy(dst, src, srclen);
202 /* Shorthands for safely copying into a fixed buffer. */
204 #define string_copy(dst, src) \
205 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
207 #define string_ncopy(dst, src, srclen) \
208 string_ncopy_do(dst, sizeof(dst), src, srclen)
210 #define string_copy_rev(dst, src) \
211 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
213 #define string_add(dst, from, src) \
214 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
217 chomp_string(char *name)
221 while (isspace(*name))
224 namelen = strlen(name) - 1;
225 while (namelen > 0 && isspace(name[namelen]))
232 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
235 size_t pos = bufpos ? *bufpos : 0;
238 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
244 return pos >= bufsize ? FALSE : TRUE;
247 #define string_format(buf, fmt, args...) \
248 string_nformat(buf, sizeof(buf), NULL, fmt, args)
250 #define string_format_from(buf, from, fmt, args...) \
251 string_nformat(buf, sizeof(buf), from, fmt, args)
254 string_enum_compare(const char *str1, const char *str2, int len)
258 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
260 /* Diff-Header == DIFF_HEADER */
261 for (i = 0; i < len; i++) {
262 if (toupper(str1[i]) == toupper(str2[i]))
265 if (string_enum_sep(str1[i]) &&
266 string_enum_sep(str2[i]))
269 return str1[i] - str2[i];
277 * NOTE: The following is a slightly modified copy of the git project's shell
278 * quoting routines found in the quote.c file.
280 * Help to copy the thing properly quoted for the shell safety. any single
281 * quote is replaced with '\'', any exclamation point is replaced with '\!',
282 * and the whole thing is enclosed in a
285 * original sq_quote result
286 * name ==> name ==> 'name'
287 * a b ==> a b ==> 'a b'
288 * a'b ==> a'\''b ==> 'a'\''b'
289 * a!b ==> a'\!'b ==> 'a'\!'b'
293 sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src)
297 #define BUFPUT(x) do { if (bufsize < SIZEOF_STR) buf[bufsize++] = (x); } while (0)
300 while ((c = *src++)) {
301 if (c == '\'' || c == '!') {
312 if (bufsize < SIZEOF_STR)
324 /* XXX: Keep the view request first and in sync with views[]. */ \
325 REQ_GROUP("View switching") \
326 REQ_(VIEW_MAIN, "Show main view"), \
327 REQ_(VIEW_DIFF, "Show diff view"), \
328 REQ_(VIEW_LOG, "Show log view"), \
329 REQ_(VIEW_TREE, "Show tree view"), \
330 REQ_(VIEW_BLOB, "Show blob view"), \
331 REQ_(VIEW_BLAME, "Show blame view"), \
332 REQ_(VIEW_HELP, "Show help page"), \
333 REQ_(VIEW_PAGER, "Show pager view"), \
334 REQ_(VIEW_STATUS, "Show status view"), \
335 REQ_(VIEW_STAGE, "Show stage view"), \
337 REQ_GROUP("View manipulation") \
338 REQ_(ENTER, "Enter current line and scroll"), \
339 REQ_(NEXT, "Move to next"), \
340 REQ_(PREVIOUS, "Move to previous"), \
341 REQ_(VIEW_NEXT, "Move focus to next view"), \
342 REQ_(REFRESH, "Reload and refresh"), \
343 REQ_(MAXIMIZE, "Maximize the current view"), \
344 REQ_(VIEW_CLOSE, "Close the current view"), \
345 REQ_(QUIT, "Close all views and quit"), \
347 REQ_GROUP("Cursor navigation") \
348 REQ_(MOVE_UP, "Move cursor one line up"), \
349 REQ_(MOVE_DOWN, "Move cursor one line down"), \
350 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
351 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
352 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
353 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
355 REQ_GROUP("Scrolling") \
356 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
357 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
358 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
359 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
361 REQ_GROUP("Searching") \
362 REQ_(SEARCH, "Search the view"), \
363 REQ_(SEARCH_BACK, "Search backwards in the view"), \
364 REQ_(FIND_NEXT, "Find next search match"), \
365 REQ_(FIND_PREV, "Find previous search match"), \
368 REQ_(PROMPT, "Bring up the prompt"), \
369 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
370 REQ_(SCREEN_RESIZE, "Resize the screen"), \
371 REQ_(SHOW_VERSION, "Show version information"), \
372 REQ_(STOP_LOADING, "Stop all loading views"), \
373 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
374 REQ_(TOGGLE_DATE, "Toggle date display"), \
375 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
376 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
377 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
378 REQ_(STATUS_UPDATE, "Update file status"), \
379 REQ_(STATUS_CHECKOUT, "Checkout file"), \
380 REQ_(STATUS_MERGE, "Merge file using external tool"), \
381 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
382 REQ_(TREE_PARENT, "Switch to parent directory in tree view"), \
383 REQ_(EDIT, "Open in editor"), \
384 REQ_(NONE, "Do nothing")
387 /* User action requests. */
389 #define REQ_GROUP(help)
390 #define REQ_(req, help) REQ_##req
392 /* Offset all requests to avoid conflicts with ncurses getch values. */
393 REQ_OFFSET = KEY_MAX + 1,
400 struct request_info {
401 enum request request;
407 static struct request_info req_info[] = {
408 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
409 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
416 get_request(const char *name)
418 int namelen = strlen(name);
421 for (i = 0; i < ARRAY_SIZE(req_info); i++)
422 if (req_info[i].namelen == namelen &&
423 !string_enum_compare(req_info[i].name, name, namelen))
424 return req_info[i].request;
434 static const char usage[] =
435 "tig " TIG_VERSION " (" __DATE__ ")\n"
437 "Usage: tig [options] [revs] [--] [paths]\n"
438 " or: tig show [options] [revs] [--] [paths]\n"
439 " or: tig blame [rev] path\n"
441 " or: tig < [git command output]\n"
444 " -v, --version Show version and exit\n"
445 " -h, --help Show help message and exit";
447 /* Option and state variables. */
448 static bool opt_date = TRUE;
449 static bool opt_author = TRUE;
450 static bool opt_line_number = FALSE;
451 static bool opt_line_graphics = TRUE;
452 static bool opt_rev_graph = FALSE;
453 static bool opt_show_refs = TRUE;
454 static int opt_num_interval = NUMBER_INTERVAL;
455 static int opt_tab_size = TAB_SIZE;
456 static int opt_author_cols = AUTHOR_COLS-1;
457 static char opt_cmd[SIZEOF_STR] = "";
458 static char opt_path[SIZEOF_STR] = "";
459 static char opt_file[SIZEOF_STR] = "";
460 static char opt_ref[SIZEOF_REF] = "";
461 static char opt_head[SIZEOF_REF] = "";
462 static char opt_remote[SIZEOF_REF] = "";
463 static bool opt_no_head = TRUE;
464 static FILE *opt_pipe = NULL;
465 static char opt_encoding[20] = "UTF-8";
466 static bool opt_utf8 = TRUE;
467 static char opt_codeset[20] = "UTF-8";
468 static iconv_t opt_iconv = ICONV_NONE;
469 static char opt_search[SIZEOF_STR] = "";
470 static char opt_cdup[SIZEOF_STR] = "";
471 static char opt_git_dir[SIZEOF_STR] = "";
472 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
473 static char opt_editor[SIZEOF_STR] = "";
476 parse_options(int argc, char *argv[])
478 enum request request = REQ_VIEW_MAIN;
481 bool seen_dashdash = FALSE;
484 if (!isatty(STDIN_FILENO)) {
486 return REQ_VIEW_PAGER;
490 return REQ_VIEW_MAIN;
492 subcommand = argv[1];
493 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
494 if (!strcmp(subcommand, "-S"))
495 warn("`-S' has been deprecated; use `tig status' instead");
497 warn("ignoring arguments after `%s'", subcommand);
498 return REQ_VIEW_STATUS;
500 } else if (!strcmp(subcommand, "blame")) {
501 if (argc <= 2 || argc > 4)
502 die("invalid number of options to blame\n\n%s", usage);
506 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
510 string_ncopy(opt_file, argv[i], strlen(argv[i]));
511 return REQ_VIEW_BLAME;
513 } else if (!strcmp(subcommand, "show")) {
514 request = REQ_VIEW_DIFF;
516 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
517 request = subcommand[0] == 'l' ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
518 warn("`tig %s' has been deprecated", subcommand);
525 /* XXX: This is vulnerable to the user overriding
526 * options required for the main view parser. */
527 string_copy(opt_cmd, "git log --no-color --pretty=raw --parents");
529 string_format(opt_cmd, "git %s", subcommand);
531 buf_size = strlen(opt_cmd);
533 for (i = 1 + !!subcommand; i < argc; i++) {
536 if (seen_dashdash || !strcmp(opt, "--")) {
537 seen_dashdash = TRUE;
539 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
540 printf("tig version %s\n", TIG_VERSION);
543 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
544 printf("%s\n", usage);
548 opt_cmd[buf_size++] = ' ';
549 buf_size = sq_quote(opt_cmd, buf_size, opt);
550 if (buf_size >= sizeof(opt_cmd))
551 die("command too long");
554 opt_cmd[buf_size] = 0;
561 * Line-oriented content detection.
565 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
566 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
567 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
568 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
569 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
570 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
571 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
572 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
573 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
574 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
575 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
576 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
577 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
578 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
579 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
580 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
581 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
582 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
583 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
584 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
585 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
586 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
587 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
588 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
589 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
590 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
591 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
592 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
593 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
594 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
595 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
596 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
597 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
598 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
599 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
600 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
601 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
602 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
603 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
604 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
605 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
606 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
607 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
608 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
609 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
610 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
611 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
612 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
613 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
614 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
615 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
616 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
617 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
618 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
621 #define LINE(type, line, fg, bg, attr) \
629 const char *name; /* Option name. */
630 int namelen; /* Size of option name. */
631 const char *line; /* The start of line to match. */
632 int linelen; /* Size of string to match. */
633 int fg, bg, attr; /* Color and text attributes for the lines. */
636 static struct line_info line_info[] = {
637 #define LINE(type, line, fg, bg, attr) \
638 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
643 static enum line_type
644 get_line_type(char *line)
646 int linelen = strlen(line);
649 for (type = 0; type < ARRAY_SIZE(line_info); type++)
650 /* Case insensitive search matches Signed-off-by lines better. */
651 if (linelen >= line_info[type].linelen &&
652 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
659 get_line_attr(enum line_type type)
661 assert(type < ARRAY_SIZE(line_info));
662 return COLOR_PAIR(type) | line_info[type].attr;
665 static struct line_info *
666 get_line_info(char *name)
668 size_t namelen = strlen(name);
671 for (type = 0; type < ARRAY_SIZE(line_info); type++)
672 if (namelen == line_info[type].namelen &&
673 !string_enum_compare(line_info[type].name, name, namelen))
674 return &line_info[type];
682 int default_bg = line_info[LINE_DEFAULT].bg;
683 int default_fg = line_info[LINE_DEFAULT].fg;
688 if (assume_default_colors(default_fg, default_bg) == ERR) {
689 default_bg = COLOR_BLACK;
690 default_fg = COLOR_WHITE;
693 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
694 struct line_info *info = &line_info[type];
695 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
696 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
698 init_pair(type, fg, bg);
706 unsigned int selected:1;
707 unsigned int dirty:1;
709 void *data; /* User data */
719 enum request request;
720 struct keybinding *next;
723 static struct keybinding default_keybindings[] = {
725 { 'm', REQ_VIEW_MAIN },
726 { 'd', REQ_VIEW_DIFF },
727 { 'l', REQ_VIEW_LOG },
728 { 't', REQ_VIEW_TREE },
729 { 'f', REQ_VIEW_BLOB },
730 { 'B', REQ_VIEW_BLAME },
731 { 'p', REQ_VIEW_PAGER },
732 { 'h', REQ_VIEW_HELP },
733 { 'S', REQ_VIEW_STATUS },
734 { 'c', REQ_VIEW_STAGE },
736 /* View manipulation */
737 { 'q', REQ_VIEW_CLOSE },
738 { KEY_TAB, REQ_VIEW_NEXT },
739 { KEY_RETURN, REQ_ENTER },
740 { KEY_UP, REQ_PREVIOUS },
741 { KEY_DOWN, REQ_NEXT },
742 { 'R', REQ_REFRESH },
743 { KEY_F(5), REQ_REFRESH },
744 { 'O', REQ_MAXIMIZE },
746 /* Cursor navigation */
747 { 'k', REQ_MOVE_UP },
748 { 'j', REQ_MOVE_DOWN },
749 { KEY_HOME, REQ_MOVE_FIRST_LINE },
750 { KEY_END, REQ_MOVE_LAST_LINE },
751 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
752 { ' ', REQ_MOVE_PAGE_DOWN },
753 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
754 { 'b', REQ_MOVE_PAGE_UP },
755 { '-', REQ_MOVE_PAGE_UP },
758 { KEY_IC, REQ_SCROLL_LINE_UP },
759 { KEY_DC, REQ_SCROLL_LINE_DOWN },
760 { 'w', REQ_SCROLL_PAGE_UP },
761 { 's', REQ_SCROLL_PAGE_DOWN },
765 { '?', REQ_SEARCH_BACK },
766 { 'n', REQ_FIND_NEXT },
767 { 'N', REQ_FIND_PREV },
771 { 'z', REQ_STOP_LOADING },
772 { 'v', REQ_SHOW_VERSION },
773 { 'r', REQ_SCREEN_REDRAW },
774 { '.', REQ_TOGGLE_LINENO },
775 { 'D', REQ_TOGGLE_DATE },
776 { 'A', REQ_TOGGLE_AUTHOR },
777 { 'g', REQ_TOGGLE_REV_GRAPH },
778 { 'F', REQ_TOGGLE_REFS },
780 { 'u', REQ_STATUS_UPDATE },
781 { '!', REQ_STATUS_CHECKOUT },
782 { 'M', REQ_STATUS_MERGE },
783 { '@', REQ_STAGE_NEXT },
784 { ',', REQ_TREE_PARENT },
787 /* Using the ncurses SIGWINCH handler. */
788 { KEY_RESIZE, REQ_SCREEN_RESIZE },
791 #define KEYMAP_INFO \
805 #define KEYMAP_(name) KEYMAP_##name
810 static struct int_map keymap_table[] = {
811 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
816 #define set_keymap(map, name) \
817 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
819 static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)];
822 add_keybinding(enum keymap keymap, enum request request, int key)
824 struct keybinding *keybinding;
826 keybinding = calloc(1, sizeof(*keybinding));
828 die("Failed to allocate keybinding");
830 keybinding->alias = key;
831 keybinding->request = request;
832 keybinding->next = keybindings[keymap];
833 keybindings[keymap] = keybinding;
836 /* Looks for a key binding first in the given map, then in the generic map, and
837 * lastly in the default keybindings. */
839 get_keybinding(enum keymap keymap, int key)
841 struct keybinding *kbd;
844 for (kbd = keybindings[keymap]; kbd; kbd = kbd->next)
845 if (kbd->alias == key)
848 for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next)
849 if (kbd->alias == key)
852 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
853 if (default_keybindings[i].alias == key)
854 return default_keybindings[i].request;
856 return (enum request) key;
865 static struct key key_table[] = {
866 { "Enter", KEY_RETURN },
868 { "Backspace", KEY_BACKSPACE },
870 { "Escape", KEY_ESC },
871 { "Left", KEY_LEFT },
872 { "Right", KEY_RIGHT },
874 { "Down", KEY_DOWN },
875 { "Insert", KEY_IC },
876 { "Delete", KEY_DC },
878 { "Home", KEY_HOME },
880 { "PageUp", KEY_PPAGE },
881 { "PageDown", KEY_NPAGE },
891 { "F10", KEY_F(10) },
892 { "F11", KEY_F(11) },
893 { "F12", KEY_F(12) },
897 get_key_value(const char *name)
901 for (i = 0; i < ARRAY_SIZE(key_table); i++)
902 if (!strcasecmp(key_table[i].name, name))
903 return key_table[i].value;
905 if (strlen(name) == 1 && isprint(*name))
912 get_key_name(int key_value)
914 static char key_char[] = "'X'";
918 for (key = 0; key < ARRAY_SIZE(key_table); key++)
919 if (key_table[key].value == key_value)
920 seq = key_table[key].name;
924 isprint(key_value)) {
925 key_char[1] = (char) key_value;
929 return seq ? seq : "'?'";
933 get_key(enum request request)
935 static char buf[BUFSIZ];
942 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
943 struct keybinding *keybinding = &default_keybindings[i];
945 if (keybinding->request != request)
948 if (!string_format_from(buf, &pos, "%s%s", sep,
949 get_key_name(keybinding->alias)))
950 return "Too many keybindings!";
960 char cmd[SIZEOF_STR];
963 static struct run_request *run_request;
964 static size_t run_requests;
967 add_run_request(enum keymap keymap, int key, int argc, char **argv)
969 struct run_request *req;
970 char cmd[SIZEOF_STR];
973 for (bufpos = 0; argc > 0; argc--, argv++)
974 if (!string_format_from(cmd, &bufpos, "%s ", *argv))
977 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
982 req = &run_request[run_requests++];
983 string_copy(req->cmd, cmd);
984 req->keymap = keymap;
987 return REQ_NONE + run_requests;
990 static struct run_request *
991 get_run_request(enum request request)
993 if (request <= REQ_NONE)
995 return &run_request[request - REQ_NONE - 1];
999 add_builtin_run_requests(void)
1006 { KEYMAP_MAIN, 'C', { "git cherry-pick %(commit)" } },
1007 { KEYMAP_GENERIC, 'G', { "git gc" } },
1011 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1014 req = add_run_request(reqs[i].keymap, reqs[i].key, 1, reqs[i].argv);
1015 if (req != REQ_NONE)
1016 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1021 * User config file handling.
1024 static struct int_map color_map[] = {
1025 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1037 #define set_color(color, name) \
1038 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1040 static struct int_map attr_map[] = {
1041 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1048 ATTR_MAP(UNDERLINE),
1051 #define set_attribute(attr, name) \
1052 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1054 static int config_lineno;
1055 static bool config_errors;
1056 static char *config_msg;
1058 /* Wants: object fgcolor bgcolor [attr] */
1060 option_color_command(int argc, char *argv[])
1062 struct line_info *info;
1064 if (argc != 3 && argc != 4) {
1065 config_msg = "Wrong number of arguments given to color command";
1069 info = get_line_info(argv[0]);
1071 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1072 info = get_line_info("delimiter");
1074 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1075 info = get_line_info("date");
1078 config_msg = "Unknown color name";
1083 if (set_color(&info->fg, argv[1]) == ERR ||
1084 set_color(&info->bg, argv[2]) == ERR) {
1085 config_msg = "Unknown color";
1089 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1090 config_msg = "Unknown attribute";
1097 static bool parse_bool(const char *s)
1099 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1100 !strcmp(s, "yes")) ? TRUE : FALSE;
1104 parse_int(const char *s, int default_value, int min, int max)
1106 int value = atoi(s);
1108 return (value < min || value > max) ? default_value : value;
1111 /* Wants: name = value */
1113 option_set_command(int argc, char *argv[])
1116 config_msg = "Wrong number of arguments given to set command";
1120 if (strcmp(argv[1], "=")) {
1121 config_msg = "No value assigned";
1125 if (!strcmp(argv[0], "show-author")) {
1126 opt_author = parse_bool(argv[2]);
1130 if (!strcmp(argv[0], "show-date")) {
1131 opt_date = parse_bool(argv[2]);
1135 if (!strcmp(argv[0], "show-rev-graph")) {
1136 opt_rev_graph = parse_bool(argv[2]);
1140 if (!strcmp(argv[0], "show-refs")) {
1141 opt_show_refs = parse_bool(argv[2]);
1145 if (!strcmp(argv[0], "show-line-numbers")) {
1146 opt_line_number = parse_bool(argv[2]);
1150 if (!strcmp(argv[0], "line-graphics")) {
1151 opt_line_graphics = parse_bool(argv[2]);
1155 if (!strcmp(argv[0], "line-number-interval")) {
1156 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1160 if (!strcmp(argv[0], "author-width")) {
1161 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1165 if (!strcmp(argv[0], "tab-size")) {
1166 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1170 if (!strcmp(argv[0], "commit-encoding")) {
1171 char *arg = argv[2];
1172 int delimiter = *arg;
1175 switch (delimiter) {
1178 for (arg++, i = 0; arg[i]; i++)
1179 if (arg[i] == delimiter) {
1184 string_ncopy(opt_encoding, arg, strlen(arg));
1189 config_msg = "Unknown variable name";
1193 /* Wants: mode request key */
1195 option_bind_command(int argc, char *argv[])
1197 enum request request;
1202 config_msg = "Wrong number of arguments given to bind command";
1206 if (set_keymap(&keymap, argv[0]) == ERR) {
1207 config_msg = "Unknown key map";
1211 key = get_key_value(argv[1]);
1213 config_msg = "Unknown key";
1217 request = get_request(argv[2]);
1218 if (request == REQ_NONE) {
1219 const char *obsolete[] = { "cherry-pick" };
1220 size_t namelen = strlen(argv[2]);
1223 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1224 if (namelen == strlen(obsolete[i]) &&
1225 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1226 config_msg = "Obsolete request name";
1231 if (request == REQ_NONE && *argv[2]++ == '!')
1232 request = add_run_request(keymap, key, argc - 2, argv + 2);
1233 if (request == REQ_NONE) {
1234 config_msg = "Unknown request name";
1238 add_keybinding(keymap, request, key);
1244 set_option(char *opt, char *value)
1251 while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) {
1252 argv[argc++] = value;
1255 /* Nothing more to tokenize or last available token. */
1256 if (!*value || argc >= ARRAY_SIZE(argv))
1260 while (isspace(*value))
1264 if (!strcmp(opt, "color"))
1265 return option_color_command(argc, argv);
1267 if (!strcmp(opt, "set"))
1268 return option_set_command(argc, argv);
1270 if (!strcmp(opt, "bind"))
1271 return option_bind_command(argc, argv);
1273 config_msg = "Unknown option command";
1278 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1283 config_msg = "Internal error";
1285 /* Check for comment markers, since read_properties() will
1286 * only ensure opt and value are split at first " \t". */
1287 optlen = strcspn(opt, "#");
1291 if (opt[optlen] != 0) {
1292 config_msg = "No option value";
1296 /* Look for comment endings in the value. */
1297 size_t len = strcspn(value, "#");
1299 if (len < valuelen) {
1301 value[valuelen] = 0;
1304 status = set_option(opt, value);
1307 if (status == ERR) {
1308 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1309 config_lineno, (int) optlen, opt, config_msg);
1310 config_errors = TRUE;
1313 /* Always keep going if errors are encountered. */
1318 load_option_file(const char *path)
1322 /* It's ok that the file doesn't exist. */
1323 file = fopen(path, "r");
1328 config_errors = FALSE;
1330 if (read_properties(file, " \t", read_option) == ERR ||
1331 config_errors == TRUE)
1332 fprintf(stderr, "Errors while loading %s.\n", path);
1338 char *home = getenv("HOME");
1339 char *tigrc_user = getenv("TIGRC_USER");
1340 char *tigrc_system = getenv("TIGRC_SYSTEM");
1341 char buf[SIZEOF_STR];
1343 add_builtin_run_requests();
1345 if (!tigrc_system) {
1346 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1350 load_option_file(tigrc_system);
1353 if (!home || !string_format(buf, "%s/.tigrc", home))
1357 load_option_file(tigrc_user);
1370 /* The display array of active views and the index of the current view. */
1371 static struct view *display[2];
1372 static unsigned int current_view;
1374 /* Reading from the prompt? */
1375 static bool input_mode = FALSE;
1377 #define foreach_displayed_view(view, i) \
1378 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1380 #define displayed_views() (display[1] != NULL ? 2 : 1)
1382 /* Current head and commit ID */
1383 static char ref_blob[SIZEOF_REF] = "";
1384 static char ref_commit[SIZEOF_REF] = "HEAD";
1385 static char ref_head[SIZEOF_REF] = "HEAD";
1388 const char *name; /* View name */
1389 const char *cmd_fmt; /* Default command line format */
1390 const char *cmd_env; /* Command line set via environment */
1391 const char *id; /* Points to either of ref_{head,commit,blob} */
1393 struct view_ops *ops; /* View operations */
1395 enum keymap keymap; /* What keymap does this view have */
1396 bool git_dir; /* Whether the view requires a git directory. */
1398 char cmd[SIZEOF_STR]; /* Command buffer */
1399 char ref[SIZEOF_REF]; /* Hovered commit reference */
1400 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1402 int height, width; /* The width and height of the main window */
1403 WINDOW *win; /* The main window */
1404 WINDOW *title; /* The title window living below the main window */
1407 unsigned long offset; /* Offset of the window top */
1408 unsigned long lineno; /* Current line number */
1411 char grep[SIZEOF_STR]; /* Search string */
1412 regex_t *regex; /* Pre-compiled regex */
1414 /* If non-NULL, points to the view that opened this view. If this view
1415 * is closed tig will switch back to the parent view. */
1416 struct view *parent;
1419 size_t lines; /* Total number of lines */
1420 struct line *line; /* Line index */
1421 size_t line_alloc; /* Total number of allocated lines */
1422 size_t line_size; /* Total number of used lines */
1423 unsigned int digits; /* Number of digits in the lines member. */
1426 struct line *curline; /* Line currently being drawn. */
1427 enum line_type curtype; /* Attribute currently used for drawing. */
1428 unsigned long col; /* Column when drawing. */
1436 /* What type of content being displayed. Used in the title bar. */
1438 /* Open and reads in all view content. */
1439 bool (*open)(struct view *view);
1440 /* Read one line; updates view->line. */
1441 bool (*read)(struct view *view, char *data);
1442 /* Draw one line; @lineno must be < view->height. */
1443 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1444 /* Depending on view handle a special requests. */
1445 enum request (*request)(struct view *view, enum request request, struct line *line);
1446 /* Search for regex in a line. */
1447 bool (*grep)(struct view *view, struct line *line);
1449 void (*select)(struct view *view, struct line *line);
1452 static struct view_ops pager_ops;
1453 static struct view_ops main_ops;
1454 static struct view_ops tree_ops;
1455 static struct view_ops blob_ops;
1456 static struct view_ops blame_ops;
1457 static struct view_ops help_ops;
1458 static struct view_ops status_ops;
1459 static struct view_ops stage_ops;
1461 #define VIEW_STR(name, cmd, env, ref, ops, map, git) \
1462 { name, cmd, #env, ref, ops, map, git }
1464 #define VIEW_(id, name, ops, git, ref) \
1465 VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1468 static struct view views[] = {
1469 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1470 VIEW_(DIFF, "diff", &pager_ops, TRUE, ref_commit),
1471 VIEW_(LOG, "log", &pager_ops, TRUE, ref_head),
1472 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1473 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1474 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1475 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1476 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1477 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1478 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1481 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1482 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1484 #define foreach_view(view, i) \
1485 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1487 #define view_is_displayed(view) \
1488 (view == display[0] || view == display[1])
1495 static int line_graphics[] = {
1496 /* LINE_GRAPHIC_VLINE: */ '|'
1500 set_view_attr(struct view *view, enum line_type type)
1502 if (!view->curline->selected && view->curtype != type) {
1503 wattrset(view->win, get_line_attr(type));
1504 wchgat(view->win, -1, 0, type, NULL);
1505 view->curtype = type;
1510 draw_chars(struct view *view, enum line_type type, const char *string,
1511 int max_len, bool use_tilde)
1515 int trimmed = FALSE;
1521 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1523 col = len = strlen(string);
1524 if (len > max_len) {
1528 col = len = max_len;
1533 set_view_attr(view, type);
1534 waddnstr(view->win, string, len);
1535 if (trimmed && use_tilde) {
1536 set_view_attr(view, LINE_DELIMITER);
1537 waddch(view->win, '~');
1545 draw_space(struct view *view, enum line_type type, int max, int spaces)
1547 static char space[] = " ";
1550 spaces = MIN(max, spaces);
1552 while (spaces > 0) {
1553 int len = MIN(spaces, sizeof(space) - 1);
1555 col += draw_chars(view, type, space, spaces, FALSE);
1563 draw_lineno(struct view *view, unsigned int lineno)
1566 int digits3 = view->digits < 3 ? 3 : view->digits;
1567 int max_number = MIN(digits3, STRING_SIZE(number));
1568 int max = view->width - view->col;
1571 if (max < max_number)
1574 lineno += view->offset + 1;
1575 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1576 static char fmt[] = "%1ld";
1578 if (view->digits <= 9)
1579 fmt[1] = '0' + digits3;
1581 if (!string_format(number, fmt, lineno))
1583 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1585 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1589 set_view_attr(view, LINE_DEFAULT);
1590 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1595 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1598 return view->width - view->col <= 0;
1602 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1604 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1605 return view->width - view->col <= 0;
1609 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1611 int max = view->width - view->col;
1617 set_view_attr(view, type);
1618 /* Using waddch() instead of waddnstr() ensures that
1619 * they'll be rendered correctly for the cursor line. */
1620 for (i = 0; i < size; i++)
1621 waddch(view->win, graphic[i]);
1625 waddch(view->win, ' ');
1629 return view->width - view->col <= 0;
1633 draw_field(struct view *view, enum line_type type, char *text, int len, bool trim)
1635 int max = MIN(view->width - view->col, len);
1639 col = draw_chars(view, type, text, max - 1, trim);
1641 col = draw_space(view, type, max - 1, max - 1);
1643 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1644 return view->width - view->col <= 0;
1648 draw_date(struct view *view, struct tm *time)
1650 char buf[DATE_COLS];
1655 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1656 date = timelen ? buf : NULL;
1658 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1662 draw_view_line(struct view *view, unsigned int lineno)
1665 bool selected = (view->offset + lineno == view->lineno);
1668 assert(view_is_displayed(view));
1670 if (view->offset + lineno >= view->lines)
1673 line = &view->line[view->offset + lineno];
1675 wmove(view->win, lineno, 0);
1677 view->curline = line;
1678 view->curtype = LINE_NONE;
1679 line->selected = FALSE;
1682 set_view_attr(view, LINE_CURSOR);
1683 line->selected = TRUE;
1684 view->ops->select(view, line);
1685 } else if (line->selected) {
1686 wclrtoeol(view->win);
1689 scrollok(view->win, FALSE);
1690 draw_ok = view->ops->draw(view, line, lineno);
1691 scrollok(view->win, TRUE);
1697 redraw_view_dirty(struct view *view)
1702 for (lineno = 0; lineno < view->height; lineno++) {
1703 struct line *line = &view->line[view->offset + lineno];
1709 if (!draw_view_line(view, lineno))
1715 redrawwin(view->win);
1717 wnoutrefresh(view->win);
1719 wrefresh(view->win);
1723 redraw_view_from(struct view *view, int lineno)
1725 assert(0 <= lineno && lineno < view->height);
1727 for (; lineno < view->height; lineno++) {
1728 if (!draw_view_line(view, lineno))
1732 redrawwin(view->win);
1734 wnoutrefresh(view->win);
1736 wrefresh(view->win);
1740 redraw_view(struct view *view)
1743 redraw_view_from(view, 0);
1748 update_view_title(struct view *view)
1750 char buf[SIZEOF_STR];
1751 char state[SIZEOF_STR];
1752 size_t bufpos = 0, statelen = 0;
1754 assert(view_is_displayed(view));
1756 if (view != VIEW(REQ_VIEW_STATUS) && (view->lines || view->pipe)) {
1757 unsigned int view_lines = view->offset + view->height;
1758 unsigned int lines = view->lines
1759 ? MIN(view_lines, view->lines) * 100 / view->lines
1762 string_format_from(state, &statelen, "- %s %d of %d (%d%%)",
1769 time_t secs = time(NULL) - view->start_time;
1771 /* Three git seconds are a long time ... */
1773 string_format_from(state, &statelen, " %lds", secs);
1777 string_format_from(buf, &bufpos, "[%s]", view->name);
1778 if (*view->ref && bufpos < view->width) {
1779 size_t refsize = strlen(view->ref);
1780 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
1782 if (minsize < view->width)
1783 refsize = view->width - minsize + 7;
1784 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
1787 if (statelen && bufpos < view->width) {
1788 string_format_from(buf, &bufpos, " %s", state);
1791 if (view == display[current_view])
1792 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
1794 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
1796 mvwaddnstr(view->title, 0, 0, buf, bufpos);
1797 wclrtoeol(view->title);
1798 wmove(view->title, 0, view->width - 1);
1801 wnoutrefresh(view->title);
1803 wrefresh(view->title);
1807 resize_display(void)
1810 struct view *base = display[0];
1811 struct view *view = display[1] ? display[1] : display[0];
1813 /* Setup window dimensions */
1815 getmaxyx(stdscr, base->height, base->width);
1817 /* Make room for the status window. */
1821 /* Horizontal split. */
1822 view->width = base->width;
1823 view->height = SCALE_SPLIT_VIEW(base->height);
1824 base->height -= view->height;
1826 /* Make room for the title bar. */
1830 /* Make room for the title bar. */
1835 foreach_displayed_view (view, i) {
1837 view->win = newwin(view->height, 0, offset, 0);
1839 die("Failed to create %s view", view->name);
1841 scrollok(view->win, TRUE);
1843 view->title = newwin(1, 0, offset + view->height, 0);
1845 die("Failed to create title window");
1848 wresize(view->win, view->height, view->width);
1849 mvwin(view->win, offset, 0);
1850 mvwin(view->title, offset + view->height, 0);
1853 offset += view->height + 1;
1858 redraw_display(void)
1863 foreach_displayed_view (view, i) {
1865 update_view_title(view);
1870 update_display_cursor(struct view *view)
1872 /* Move the cursor to the right-most column of the cursor line.
1874 * XXX: This could turn out to be a bit expensive, but it ensures that
1875 * the cursor does not jump around. */
1877 wmove(view->win, view->lineno - view->offset, view->width - 1);
1878 wrefresh(view->win);
1886 /* Scrolling backend */
1888 do_scroll_view(struct view *view, int lines)
1890 bool redraw_current_line = FALSE;
1892 /* The rendering expects the new offset. */
1893 view->offset += lines;
1895 assert(0 <= view->offset && view->offset < view->lines);
1898 /* Move current line into the view. */
1899 if (view->lineno < view->offset) {
1900 view->lineno = view->offset;
1901 redraw_current_line = TRUE;
1902 } else if (view->lineno >= view->offset + view->height) {
1903 view->lineno = view->offset + view->height - 1;
1904 redraw_current_line = TRUE;
1907 assert(view->offset <= view->lineno && view->lineno < view->lines);
1909 /* Redraw the whole screen if scrolling is pointless. */
1910 if (view->height < ABS(lines)) {
1914 int line = lines > 0 ? view->height - lines : 0;
1915 int end = line + ABS(lines);
1917 wscrl(view->win, lines);
1919 for (; line < end; line++) {
1920 if (!draw_view_line(view, line))
1924 if (redraw_current_line)
1925 draw_view_line(view, view->lineno - view->offset);
1928 redrawwin(view->win);
1929 wrefresh(view->win);
1933 /* Scroll frontend */
1935 scroll_view(struct view *view, enum request request)
1939 assert(view_is_displayed(view));
1942 case REQ_SCROLL_PAGE_DOWN:
1943 lines = view->height;
1944 case REQ_SCROLL_LINE_DOWN:
1945 if (view->offset + lines > view->lines)
1946 lines = view->lines - view->offset;
1948 if (lines == 0 || view->offset + view->height >= view->lines) {
1949 report("Cannot scroll beyond the last line");
1954 case REQ_SCROLL_PAGE_UP:
1955 lines = view->height;
1956 case REQ_SCROLL_LINE_UP:
1957 if (lines > view->offset)
1958 lines = view->offset;
1961 report("Cannot scroll beyond the first line");
1969 die("request %d not handled in switch", request);
1972 do_scroll_view(view, lines);
1977 move_view(struct view *view, enum request request)
1979 int scroll_steps = 0;
1983 case REQ_MOVE_FIRST_LINE:
1984 steps = -view->lineno;
1987 case REQ_MOVE_LAST_LINE:
1988 steps = view->lines - view->lineno - 1;
1991 case REQ_MOVE_PAGE_UP:
1992 steps = view->height > view->lineno
1993 ? -view->lineno : -view->height;
1996 case REQ_MOVE_PAGE_DOWN:
1997 steps = view->lineno + view->height >= view->lines
1998 ? view->lines - view->lineno - 1 : view->height;
2010 die("request %d not handled in switch", request);
2013 if (steps <= 0 && view->lineno == 0) {
2014 report("Cannot move beyond the first line");
2017 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2018 report("Cannot move beyond the last line");
2022 /* Move the current line */
2023 view->lineno += steps;
2024 assert(0 <= view->lineno && view->lineno < view->lines);
2026 /* Check whether the view needs to be scrolled */
2027 if (view->lineno < view->offset ||
2028 view->lineno >= view->offset + view->height) {
2029 scroll_steps = steps;
2030 if (steps < 0 && -steps > view->offset) {
2031 scroll_steps = -view->offset;
2033 } else if (steps > 0) {
2034 if (view->lineno == view->lines - 1 &&
2035 view->lines > view->height) {
2036 scroll_steps = view->lines - view->offset - 1;
2037 if (scroll_steps >= view->height)
2038 scroll_steps -= view->height - 1;
2043 if (!view_is_displayed(view)) {
2044 view->offset += scroll_steps;
2045 assert(0 <= view->offset && view->offset < view->lines);
2046 view->ops->select(view, &view->line[view->lineno]);
2050 /* Repaint the old "current" line if we be scrolling */
2051 if (ABS(steps) < view->height)
2052 draw_view_line(view, view->lineno - steps - view->offset);
2055 do_scroll_view(view, scroll_steps);
2059 /* Draw the current line */
2060 draw_view_line(view, view->lineno - view->offset);
2062 redrawwin(view->win);
2063 wrefresh(view->win);
2072 static void search_view(struct view *view, enum request request);
2075 find_next_line(struct view *view, unsigned long lineno, struct line *line)
2077 assert(view_is_displayed(view));
2079 if (!view->ops->grep(view, line))
2082 if (lineno - view->offset >= view->height) {
2083 view->offset = lineno;
2084 view->lineno = lineno;
2088 unsigned long old_lineno = view->lineno - view->offset;
2090 view->lineno = lineno;
2091 draw_view_line(view, old_lineno);
2093 draw_view_line(view, view->lineno - view->offset);
2094 redrawwin(view->win);
2095 wrefresh(view->win);
2098 report("Line %ld matches '%s'", lineno + 1, view->grep);
2103 find_next(struct view *view, enum request request)
2105 unsigned long lineno = view->lineno;
2110 report("No previous search");
2112 search_view(view, request);
2122 case REQ_SEARCH_BACK:
2131 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2132 lineno += direction;
2134 /* Note, lineno is unsigned long so will wrap around in which case it
2135 * will become bigger than view->lines. */
2136 for (; lineno < view->lines; lineno += direction) {
2137 struct line *line = &view->line[lineno];
2139 if (find_next_line(view, lineno, line))
2143 report("No match found for '%s'", view->grep);
2147 search_view(struct view *view, enum request request)
2152 regfree(view->regex);
2155 view->regex = calloc(1, sizeof(*view->regex));
2160 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2161 if (regex_err != 0) {
2162 char buf[SIZEOF_STR] = "unknown error";
2164 regerror(regex_err, view->regex, buf, sizeof(buf));
2165 report("Search failed: %s", buf);
2169 string_copy(view->grep, opt_search);
2171 find_next(view, request);
2175 * Incremental updating
2179 end_update(struct view *view, bool force)
2183 while (!view->ops->read(view, NULL))
2186 set_nonblocking_input(FALSE);
2187 if (view->pipe == stdin)
2195 begin_update(struct view *view)
2198 string_copy(view->cmd, opt_cmd);
2200 /* When running random commands, initially show the
2201 * command in the title. However, it maybe later be
2202 * overwritten if a commit line is selected. */
2203 if (view == VIEW(REQ_VIEW_PAGER))
2204 string_copy(view->ref, view->cmd);
2208 } else if (view == VIEW(REQ_VIEW_TREE)) {
2209 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2210 char path[SIZEOF_STR];
2212 if (strcmp(view->vid, view->id))
2213 opt_path[0] = path[0] = 0;
2214 else if (sq_quote(path, 0, opt_path) >= sizeof(path))
2217 if (!string_format(view->cmd, format, view->id, path))
2221 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2222 const char *id = view->id;
2224 if (!string_format(view->cmd, format, id, id, id, id, id))
2227 /* Put the current ref_* value to the view title ref
2228 * member. This is needed by the blob view. Most other
2229 * views sets it automatically after loading because the
2230 * first line is a commit line. */
2231 string_copy_rev(view->ref, view->id);
2234 /* Special case for the pager view. */
2236 view->pipe = opt_pipe;
2239 view->pipe = popen(view->cmd, "r");
2245 set_nonblocking_input(TRUE);
2250 string_copy_rev(view->vid, view->id);
2255 for (i = 0; i < view->lines; i++)
2256 if (view->line[i].data)
2257 free(view->line[i].data);
2263 view->start_time = time(NULL);
2268 #define ITEM_CHUNK_SIZE 256
2270 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2272 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2273 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2275 if (mem == NULL || num_chunks != num_chunks_new) {
2276 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2277 mem = realloc(mem, *size * item_size);
2283 static struct line *
2284 realloc_lines(struct view *view, size_t line_size)
2286 size_t alloc = view->line_alloc;
2287 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2288 sizeof(*view->line));
2294 view->line_alloc = alloc;
2295 view->line_size = line_size;
2300 update_view(struct view *view)
2302 char in_buffer[BUFSIZ];
2303 char out_buffer[BUFSIZ * 2];
2305 /* The number of lines to read. If too low it will cause too much
2306 * redrawing (and possible flickering), if too high responsiveness
2308 unsigned long lines = view->height;
2309 int redraw_from = -1;
2314 /* Only redraw if lines are visible. */
2315 if (view->offset + view->height >= view->lines)
2316 redraw_from = view->lines - view->offset;
2318 /* FIXME: This is probably not perfect for backgrounded views. */
2319 if (!realloc_lines(view, view->lines + lines))
2322 while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) {
2323 size_t linelen = strlen(line);
2326 line[linelen - 1] = 0;
2328 if (opt_iconv != ICONV_NONE) {
2329 ICONV_CONST char *inbuf = line;
2330 size_t inlen = linelen;
2332 char *outbuf = out_buffer;
2333 size_t outlen = sizeof(out_buffer);
2337 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2338 if (ret != (size_t) -1) {
2340 linelen = strlen(out_buffer);
2344 if (!view->ops->read(view, line))
2354 lines = view->lines;
2355 for (digits = 0; lines; digits++)
2358 /* Keep the displayed view in sync with line number scaling. */
2359 if (digits != view->digits) {
2360 view->digits = digits;
2365 if (!view_is_displayed(view))
2368 if (view == VIEW(REQ_VIEW_TREE)) {
2369 /* Clear the view and redraw everything since the tree sorting
2370 * might have rearranged things. */
2373 } else if (redraw_from >= 0) {
2374 /* If this is an incremental update, redraw the previous line
2375 * since for commits some members could have changed when
2376 * loading the main view. */
2377 if (redraw_from > 0)
2380 /* Since revision graph visualization requires knowledge
2381 * about the parent commit, it causes a further one-off
2382 * needed to be redrawn for incremental updates. */
2383 if (redraw_from > 0 && opt_rev_graph)
2386 /* Incrementally draw avoids flickering. */
2387 redraw_view_from(view, redraw_from);
2390 if (view == VIEW(REQ_VIEW_BLAME))
2391 redraw_view_dirty(view);
2393 /* Update the title _after_ the redraw so that if the redraw picks up a
2394 * commit reference in view->ref it'll be available here. */
2395 update_view_title(view);
2398 if (ferror(view->pipe) && errno != 0) {
2399 report("Failed to read: %s", strerror(errno));
2400 end_update(view, TRUE);
2402 } else if (feof(view->pipe)) {
2404 end_update(view, FALSE);
2410 report("Allocation failure");
2411 end_update(view, TRUE);
2415 static struct line *
2416 add_line_data(struct view *view, void *data, enum line_type type)
2418 struct line *line = &view->line[view->lines++];
2420 memset(line, 0, sizeof(*line));
2427 static struct line *
2428 add_line_text(struct view *view, char *data, enum line_type type)
2431 data = strdup(data);
2433 return data ? add_line_data(view, data, type) : NULL;
2442 OPEN_DEFAULT = 0, /* Use default view switching. */
2443 OPEN_SPLIT = 1, /* Split current view. */
2444 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2445 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2446 OPEN_NOMAXIMIZE = 8 /* Do not maximize the current view. */
2450 open_view(struct view *prev, enum request request, enum open_flags flags)
2452 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2453 bool split = !!(flags & OPEN_SPLIT);
2454 bool reload = !!(flags & OPEN_RELOAD);
2455 bool nomaximize = !!(flags & OPEN_NOMAXIMIZE);
2456 struct view *view = VIEW(request);
2457 int nviews = displayed_views();
2458 struct view *base_view = display[0];
2460 if (view == prev && nviews == 1 && !reload) {
2461 report("Already in %s view", view->name);
2465 if (view->git_dir && !opt_git_dir[0]) {
2466 report("The %s view is disabled in pager view", view->name);
2474 } else if (!nomaximize) {
2475 /* Maximize the current view. */
2476 memset(display, 0, sizeof(display));
2478 display[current_view] = view;
2481 /* Resize the view when switching between split- and full-screen,
2482 * or when switching between two different full-screen views. */
2483 if (nviews != displayed_views() ||
2484 (nviews == 1 && base_view != display[0]))
2488 end_update(view, TRUE);
2490 if (view->ops->open) {
2491 if (!view->ops->open(view)) {
2492 report("Failed to load %s view", view->name);
2496 } else if ((reload || strcmp(view->vid, view->id)) &&
2497 !begin_update(view)) {
2498 report("Failed to load %s view", view->name);
2502 if (split && prev->lineno - prev->offset >= prev->height) {
2503 /* Take the title line into account. */
2504 int lines = prev->lineno - prev->offset - prev->height + 1;
2506 /* Scroll the view that was split if the current line is
2507 * outside the new limited view. */
2508 do_scroll_view(prev, lines);
2511 if (prev && view != prev) {
2512 if (split && !backgrounded) {
2513 /* "Blur" the previous view. */
2514 update_view_title(prev);
2517 view->parent = prev;
2520 if (view->pipe && view->lines == 0) {
2521 /* Clear the old view and let the incremental updating refill
2530 /* If the view is backgrounded the above calls to report()
2531 * won't redraw the view title. */
2533 update_view_title(view);
2537 run_confirm(const char *cmd, const char *prompt)
2539 if (prompt_yesno(prompt)) {
2545 open_external_viewer(const char *cmd)
2547 def_prog_mode(); /* save current tty modes */
2548 endwin(); /* restore original tty modes */
2550 fprintf(stderr, "Press Enter to continue");
2557 open_mergetool(const char *file)
2559 char cmd[SIZEOF_STR];
2560 char file_sq[SIZEOF_STR];
2562 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2563 string_format(cmd, "git mergetool %s", file_sq)) {
2564 open_external_viewer(cmd);
2569 open_editor(bool from_root, const char *file)
2571 char cmd[SIZEOF_STR];
2572 char file_sq[SIZEOF_STR];
2574 char *prefix = from_root ? opt_cdup : "";
2576 editor = getenv("GIT_EDITOR");
2577 if (!editor && *opt_editor)
2578 editor = opt_editor;
2580 editor = getenv("VISUAL");
2582 editor = getenv("EDITOR");
2586 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2587 string_format(cmd, "%s %s%s", editor, prefix, file_sq)) {
2588 open_external_viewer(cmd);
2593 open_run_request(enum request request)
2595 struct run_request *req = get_run_request(request);
2596 char buf[SIZEOF_STR * 2];
2601 report("Unknown run request");
2609 char *next = strstr(cmd, "%(");
2610 int len = next - cmd;
2617 } else if (!strncmp(next, "%(head)", 7)) {
2620 } else if (!strncmp(next, "%(commit)", 9)) {
2623 } else if (!strncmp(next, "%(blob)", 7)) {
2627 report("Unknown replacement in run request: `%s`", req->cmd);
2631 if (!string_format_from(buf, &bufpos, "%.*s%s", len, cmd, value))
2635 next = strchr(next, ')') + 1;
2639 open_external_viewer(buf);
2643 * User request switch noodle
2647 view_driver(struct view *view, enum request request)
2651 if (request == REQ_NONE) {
2656 if (request > REQ_NONE) {
2657 open_run_request(request);
2658 /* FIXME: When all views can refresh always do this. */
2659 if (view == VIEW(REQ_VIEW_STATUS) ||
2660 view == VIEW(REQ_VIEW_MAIN) ||
2661 view == VIEW(REQ_VIEW_STAGE))
2662 request = REQ_REFRESH;
2667 if (view && view->lines) {
2668 request = view->ops->request(view, request, &view->line[view->lineno]);
2669 if (request == REQ_NONE)
2676 case REQ_MOVE_PAGE_UP:
2677 case REQ_MOVE_PAGE_DOWN:
2678 case REQ_MOVE_FIRST_LINE:
2679 case REQ_MOVE_LAST_LINE:
2680 move_view(view, request);
2683 case REQ_SCROLL_LINE_DOWN:
2684 case REQ_SCROLL_LINE_UP:
2685 case REQ_SCROLL_PAGE_DOWN:
2686 case REQ_SCROLL_PAGE_UP:
2687 scroll_view(view, request);
2690 case REQ_VIEW_BLAME:
2692 report("No file chosen, press %s to open tree view",
2693 get_key(REQ_VIEW_TREE));
2696 open_view(view, request, OPEN_DEFAULT);
2701 report("No file chosen, press %s to open tree view",
2702 get_key(REQ_VIEW_TREE));
2705 open_view(view, request, OPEN_DEFAULT);
2708 case REQ_VIEW_PAGER:
2709 if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2710 report("No pager content, press %s to run command from prompt",
2711 get_key(REQ_PROMPT));
2714 open_view(view, request, OPEN_DEFAULT);
2717 case REQ_VIEW_STAGE:
2718 if (!VIEW(REQ_VIEW_STAGE)->lines) {
2719 report("No stage content, press %s to open the status view and choose file",
2720 get_key(REQ_VIEW_STATUS));
2723 open_view(view, request, OPEN_DEFAULT);
2726 case REQ_VIEW_STATUS:
2727 if (opt_is_inside_work_tree == FALSE) {
2728 report("The status view requires a working tree");
2731 open_view(view, request, OPEN_DEFAULT);
2739 open_view(view, request, OPEN_DEFAULT);
2744 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2746 if ((view == VIEW(REQ_VIEW_DIFF) &&
2747 view->parent == VIEW(REQ_VIEW_MAIN)) ||
2748 (view == VIEW(REQ_VIEW_DIFF) &&
2749 view->parent == VIEW(REQ_VIEW_BLAME)) ||
2750 (view == VIEW(REQ_VIEW_STAGE) &&
2751 view->parent == VIEW(REQ_VIEW_STATUS)) ||
2752 (view == VIEW(REQ_VIEW_BLOB) &&
2753 view->parent == VIEW(REQ_VIEW_TREE))) {
2756 view = view->parent;
2757 line = view->lineno;
2758 move_view(view, request);
2759 if (view_is_displayed(view))
2760 update_view_title(view);
2761 if (line != view->lineno)
2762 view->ops->request(view, REQ_ENTER,
2763 &view->line[view->lineno]);
2766 move_view(view, request);
2772 int nviews = displayed_views();
2773 int next_view = (current_view + 1) % nviews;
2775 if (next_view == current_view) {
2776 report("Only one view is displayed");
2780 current_view = next_view;
2781 /* Blur out the title of the previous view. */
2782 update_view_title(view);
2787 report("Refreshing is not yet supported for the %s view", view->name);
2791 if (displayed_views() == 2)
2792 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
2795 case REQ_TOGGLE_LINENO:
2796 opt_line_number = !opt_line_number;
2800 case REQ_TOGGLE_DATE:
2801 opt_date = !opt_date;
2805 case REQ_TOGGLE_AUTHOR:
2806 opt_author = !opt_author;
2810 case REQ_TOGGLE_REV_GRAPH:
2811 opt_rev_graph = !opt_rev_graph;
2815 case REQ_TOGGLE_REFS:
2816 opt_show_refs = !opt_show_refs;
2821 case REQ_SEARCH_BACK:
2822 search_view(view, request);
2827 find_next(view, request);
2830 case REQ_STOP_LOADING:
2831 for (i = 0; i < ARRAY_SIZE(views); i++) {
2834 report("Stopped loading the %s view", view->name),
2835 end_update(view, TRUE);
2839 case REQ_SHOW_VERSION:
2840 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
2843 case REQ_SCREEN_RESIZE:
2846 case REQ_SCREEN_REDRAW:
2851 report("Nothing to edit");
2855 report("Nothing to enter");
2858 case REQ_VIEW_CLOSE:
2859 /* XXX: Mark closed views by letting view->parent point to the
2860 * view itself. Parents to closed view should never be
2863 view->parent->parent != view->parent) {
2864 memset(display, 0, sizeof(display));
2866 display[current_view] = view->parent;
2867 view->parent = view;
2877 /* An unknown key will show most commonly used commands. */
2878 report("Unknown key, press 'h' for help");
2891 pager_draw(struct view *view, struct line *line, unsigned int lineno)
2893 char *text = line->data;
2895 if (opt_line_number && draw_lineno(view, lineno))
2898 draw_text(view, line->type, text, TRUE);
2903 add_describe_ref(char *buf, size_t *bufpos, char *commit_id, const char *sep)
2905 char refbuf[SIZEOF_STR];
2909 if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id))
2912 pipe = popen(refbuf, "r");
2916 if ((ref = fgets(refbuf, sizeof(refbuf), pipe)))
2917 ref = chomp_string(ref);
2923 /* This is the only fatal call, since it can "corrupt" the buffer. */
2924 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
2931 add_pager_refs(struct view *view, struct line *line)
2933 char buf[SIZEOF_STR];
2934 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
2936 size_t bufpos = 0, refpos = 0;
2937 const char *sep = "Refs: ";
2938 bool is_tag = FALSE;
2940 assert(line->type == LINE_COMMIT);
2942 refs = get_refs(commit_id);
2944 if (view == VIEW(REQ_VIEW_DIFF))
2945 goto try_add_describe_ref;
2950 struct ref *ref = refs[refpos];
2951 char *fmt = ref->tag ? "%s[%s]" :
2952 ref->remote ? "%s<%s>" : "%s%s";
2954 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
2959 } while (refs[refpos++]->next);
2961 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
2962 try_add_describe_ref:
2963 /* Add <tag>-g<commit_id> "fake" reference. */
2964 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
2971 if (!realloc_lines(view, view->line_size + 1))
2974 add_line_text(view, buf, LINE_PP_REFS);
2978 pager_read(struct view *view, char *data)
2985 line = add_line_text(view, data, get_line_type(data));
2989 if (line->type == LINE_COMMIT &&
2990 (view == VIEW(REQ_VIEW_DIFF) ||
2991 view == VIEW(REQ_VIEW_LOG)))
2992 add_pager_refs(view, line);
2998 pager_request(struct view *view, enum request request, struct line *line)
3002 if (request != REQ_ENTER)
3005 if (line->type == LINE_COMMIT &&
3006 (view == VIEW(REQ_VIEW_LOG) ||
3007 view == VIEW(REQ_VIEW_PAGER))) {
3008 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3012 /* Always scroll the view even if it was split. That way
3013 * you can use Enter to scroll through the log view and
3014 * split open each commit diff. */
3015 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3017 /* FIXME: A minor workaround. Scrolling the view will call report("")
3018 * but if we are scrolling a non-current view this won't properly
3019 * update the view title. */
3021 update_view_title(view);
3027 pager_grep(struct view *view, struct line *line)
3030 char *text = line->data;
3035 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3042 pager_select(struct view *view, struct line *line)
3044 if (line->type == LINE_COMMIT) {
3045 char *text = (char *)line->data + STRING_SIZE("commit ");
3047 if (view != VIEW(REQ_VIEW_PAGER))
3048 string_copy_rev(view->ref, text);
3049 string_copy_rev(ref_commit, text);
3053 static struct view_ops pager_ops = {
3069 help_open(struct view *view)
3072 int lines = ARRAY_SIZE(req_info) + 2;
3075 if (view->lines > 0)
3078 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3079 if (!req_info[i].request)
3082 lines += run_requests + 1;
3084 view->line = calloc(lines, sizeof(*view->line));
3088 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3090 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3093 if (req_info[i].request == REQ_NONE)
3096 if (!req_info[i].request) {
3097 add_line_text(view, "", LINE_DEFAULT);
3098 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3102 key = get_key(req_info[i].request);
3104 key = "(no key defined)";
3106 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
3109 add_line_text(view, buf, LINE_DEFAULT);
3113 add_line_text(view, "", LINE_DEFAULT);
3114 add_line_text(view, "External commands:", LINE_DEFAULT);
3117 for (i = 0; i < run_requests; i++) {
3118 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3124 key = get_key_name(req->key);
3126 key = "(no key defined)";
3128 if (!string_format(buf, " %-10s %-14s `%s`",
3129 keymap_table[req->keymap].name,
3133 add_line_text(view, buf, LINE_DEFAULT);
3139 static struct view_ops help_ops = {
3154 struct tree_stack_entry {
3155 struct tree_stack_entry *prev; /* Entry below this in the stack */
3156 unsigned long lineno; /* Line number to restore */
3157 char *name; /* Position of name in opt_path */
3160 /* The top of the path stack. */
3161 static struct tree_stack_entry *tree_stack = NULL;
3162 unsigned long tree_lineno = 0;
3165 pop_tree_stack_entry(void)
3167 struct tree_stack_entry *entry = tree_stack;
3169 tree_lineno = entry->lineno;
3171 tree_stack = entry->prev;
3176 push_tree_stack_entry(char *name, unsigned long lineno)
3178 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3179 size_t pathlen = strlen(opt_path);
3184 entry->prev = tree_stack;
3185 entry->name = opt_path + pathlen;
3188 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3189 pop_tree_stack_entry();
3193 /* Move the current line to the first tree entry. */
3195 entry->lineno = lineno;
3198 /* Parse output from git-ls-tree(1):
3200 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3201 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3202 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3203 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3206 #define SIZEOF_TREE_ATTR \
3207 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3209 #define TREE_UP_FORMAT "040000 tree %s\t.."
3212 tree_compare_entry(enum line_type type1, char *name1,
3213 enum line_type type2, char *name2)
3215 if (type1 != type2) {
3216 if (type1 == LINE_TREE_DIR)
3221 return strcmp(name1, name2);
3225 tree_path(struct line *line)
3227 char *path = line->data;
3229 return path + SIZEOF_TREE_ATTR;
3233 tree_read(struct view *view, char *text)
3235 size_t textlen = text ? strlen(text) : 0;
3236 char buf[SIZEOF_STR];
3238 enum line_type type;
3239 bool first_read = view->lines == 0;
3243 if (textlen <= SIZEOF_TREE_ATTR)
3246 type = text[STRING_SIZE("100644 ")] == 't'
3247 ? LINE_TREE_DIR : LINE_TREE_FILE;
3250 /* Add path info line */
3251 if (!string_format(buf, "Directory path /%s", opt_path) ||
3252 !realloc_lines(view, view->line_size + 1) ||
3253 !add_line_text(view, buf, LINE_DEFAULT))
3256 /* Insert "link" to parent directory. */
3258 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
3259 !realloc_lines(view, view->line_size + 1) ||
3260 !add_line_text(view, buf, LINE_TREE_DIR))
3265 /* Strip the path part ... */
3267 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3268 size_t striplen = strlen(opt_path);
3269 char *path = text + SIZEOF_TREE_ATTR;
3271 if (pathlen > striplen)
3272 memmove(path, path + striplen,
3273 pathlen - striplen + 1);
3276 /* Skip "Directory ..." and ".." line. */
3277 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
3278 struct line *line = &view->line[pos];
3279 char *path1 = tree_path(line);
3280 char *path2 = text + SIZEOF_TREE_ATTR;
3281 int cmp = tree_compare_entry(line->type, path1, type, path2);
3286 text = strdup(text);
3290 if (view->lines > pos)
3291 memmove(&view->line[pos + 1], &view->line[pos],
3292 (view->lines - pos) * sizeof(*line));
3294 line = &view->line[pos];
3301 if (!add_line_text(view, text, type))
3304 if (tree_lineno > view->lineno) {
3305 view->lineno = tree_lineno;
3313 tree_request(struct view *view, enum request request, struct line *line)
3315 enum open_flags flags;
3317 if (request == REQ_VIEW_BLAME) {
3318 char *filename = tree_path(line);
3320 if (line->type == LINE_TREE_DIR) {
3321 report("Cannot show blame for directory %s", opt_path);
3325 string_copy(opt_ref, view->vid);
3326 string_format(opt_file, "%s%s", opt_path, filename);
3329 if (request == REQ_TREE_PARENT) {
3332 request = REQ_ENTER;
3333 line = &view->line[1];
3335 /* quit view if at top of tree */
3336 return REQ_VIEW_CLOSE;
3339 if (request != REQ_ENTER)
3342 /* Cleanup the stack if the tree view is at a different tree. */
3343 while (!*opt_path && tree_stack)
3344 pop_tree_stack_entry();
3346 switch (line->type) {
3348 /* Depending on whether it is a subdir or parent (updir?) link
3349 * mangle the path buffer. */
3350 if (line == &view->line[1] && *opt_path) {
3351 pop_tree_stack_entry();
3354 char *basename = tree_path(line);
3356 push_tree_stack_entry(basename, view->lineno);
3359 /* Trees and subtrees share the same ID, so they are not not
3360 * unique like blobs. */
3361 flags = OPEN_RELOAD;
3362 request = REQ_VIEW_TREE;
3365 case LINE_TREE_FILE:
3366 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3367 request = REQ_VIEW_BLOB;
3374 open_view(view, request, flags);
3375 if (request == REQ_VIEW_TREE) {
3376 view->lineno = tree_lineno;
3383 tree_select(struct view *view, struct line *line)
3385 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3387 if (line->type == LINE_TREE_FILE) {
3388 string_copy_rev(ref_blob, text);
3390 } else if (line->type != LINE_TREE_DIR) {
3394 string_copy_rev(view->ref, text);
3397 static struct view_ops tree_ops = {
3408 blob_read(struct view *view, char *line)
3412 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3415 static struct view_ops blob_ops = {
3428 * Loading the blame view is a two phase job:
3430 * 1. File content is read either using opt_file from the
3431 * filesystem or using git-cat-file.
3432 * 2. Then blame information is incrementally added by
3433 * reading output from git-blame.
3436 struct blame_commit {
3437 char id[SIZEOF_REV]; /* SHA1 ID. */
3438 char title[128]; /* First line of the commit message. */
3439 char author[75]; /* Author of the commit. */
3440 struct tm time; /* Date from the author ident. */
3441 char filename[128]; /* Name of file. */
3445 struct blame_commit *commit;
3446 unsigned int header:1;
3450 #define BLAME_CAT_FILE_CMD "git cat-file blob %s:%s"
3451 #define BLAME_INCREMENTAL_CMD "git blame --incremental %s %s"
3454 blame_open(struct view *view)
3456 char path[SIZEOF_STR];
3457 char ref[SIZEOF_STR] = "";
3459 if (sq_quote(path, 0, opt_file) >= sizeof(path))
3462 if (*opt_ref && sq_quote(ref, 0, opt_ref) >= sizeof(ref))
3466 if (!string_format(view->cmd, BLAME_CAT_FILE_CMD, ref, path))
3469 view->pipe = fopen(opt_file, "r");
3471 !string_format(view->cmd, BLAME_CAT_FILE_CMD, "HEAD", path))
3476 view->pipe = popen(view->cmd, "r");
3480 if (!string_format(view->cmd, BLAME_INCREMENTAL_CMD, ref, path))
3483 string_format(view->ref, "%s ...", opt_file);
3484 string_copy_rev(view->vid, opt_file);
3485 set_nonblocking_input(TRUE);
3490 for (i = 0; i < view->lines; i++)
3491 free(view->line[i].data);
3495 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
3496 view->offset = view->lines = view->lineno = 0;
3498 view->start_time = time(NULL);
3503 static struct blame_commit *
3504 get_blame_commit(struct view *view, const char *id)
3508 for (i = 0; i < view->lines; i++) {
3509 struct blame *blame = view->line[i].data;
3514 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3515 return blame->commit;
3519 struct blame_commit *commit = calloc(1, sizeof(*commit));
3522 string_ncopy(commit->id, id, SIZEOF_REV);
3528 parse_number(char **posref, size_t *number, size_t min, size_t max)
3530 char *pos = *posref;
3533 pos = strchr(pos + 1, ' ');
3534 if (!pos || !isdigit(pos[1]))
3536 *number = atoi(pos + 1);
3537 if (*number < min || *number > max)
3544 static struct blame_commit *
3545 parse_blame_commit(struct view *view, char *text, int *blamed)
3547 struct blame_commit *commit;
3548 struct blame *blame;
3549 char *pos = text + SIZEOF_REV - 1;
3553 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3556 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3557 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3560 commit = get_blame_commit(view, text);
3566 struct line *line = &view->line[lineno + group - 1];
3569 blame->commit = commit;
3570 blame->header = !group;
3578 blame_read_file(struct view *view, char *line)
3583 if (view->lines > 0)
3584 pipe = popen(view->cmd, "r");
3585 else if (!view->parent)
3586 die("No blame exist for %s", view->vid);
3589 report("Failed to load blame data");
3598 size_t linelen = strlen(line);
3599 struct blame *blame = malloc(sizeof(*blame) + linelen);
3601 blame->commit = NULL;
3602 strncpy(blame->text, line, linelen);
3603 blame->text[linelen] = 0;
3604 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3609 match_blame_header(const char *name, char **line)
3611 size_t namelen = strlen(name);
3612 bool matched = !strncmp(name, *line, namelen);
3621 blame_read(struct view *view, char *line)
3623 static struct blame_commit *commit = NULL;
3624 static int blamed = 0;
3625 static time_t author_time;
3628 return blame_read_file(view, line);
3634 string_format(view->ref, "%s", view->vid);
3635 if (view_is_displayed(view)) {
3636 update_view_title(view);
3637 redraw_view_from(view, 0);
3643 commit = parse_blame_commit(view, line, &blamed);
3644 string_format(view->ref, "%s %2d%%", view->vid,
3645 blamed * 100 / view->lines);
3647 } else if (match_blame_header("author ", &line)) {
3648 string_ncopy(commit->author, line, strlen(line));
3650 } else if (match_blame_header("author-time ", &line)) {
3651 author_time = (time_t) atol(line);
3653 } else if (match_blame_header("author-tz ", &line)) {
3656 tz = ('0' - line[1]) * 60 * 60 * 10;
3657 tz += ('0' - line[2]) * 60 * 60;
3658 tz += ('0' - line[3]) * 60;
3659 tz += ('0' - line[4]) * 60;
3665 gmtime_r(&author_time, &commit->time);
3667 } else if (match_blame_header("summary ", &line)) {
3668 string_ncopy(commit->title, line, strlen(line));
3670 } else if (match_blame_header("filename ", &line)) {
3671 string_ncopy(commit->filename, line, strlen(line));
3679 blame_draw(struct view *view, struct line *line, unsigned int lineno)
3681 struct blame *blame = line->data;
3682 struct tm *time = NULL;
3683 char *id = NULL, *author = NULL;
3685 if (blame->commit && *blame->commit->filename) {
3686 id = blame->commit->id;
3687 author = blame->commit->author;
3688 time = &blame->commit->time;
3691 if (opt_date && draw_date(view, time))
3695 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
3698 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
3701 if (draw_lineno(view, lineno))
3704 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
3709 blame_request(struct view *view, enum request request, struct line *line)
3711 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3712 struct blame *blame = line->data;
3716 if (!blame->commit) {
3717 report("No commit loaded yet");
3721 if (!strcmp(blame->commit->id, NULL_ID)) {
3722 char path[SIZEOF_STR];
3724 if (sq_quote(path, 0, view->vid) >= sizeof(path))
3726 string_format(opt_cmd, "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s 2>/dev/null", path);
3729 open_view(view, REQ_VIEW_DIFF, flags);
3740 blame_grep(struct view *view, struct line *line)
3742 struct blame *blame = line->data;
3743 struct blame_commit *commit = blame->commit;
3746 #define MATCH(text, on) \
3747 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3750 char buf[DATE_COLS + 1];
3752 if (MATCH(commit->title, 1) ||
3753 MATCH(commit->author, opt_author) ||
3754 MATCH(commit->id, opt_date))
3757 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
3762 return MATCH(blame->text, 1);
3768 blame_select(struct view *view, struct line *line)
3770 struct blame *blame = line->data;
3771 struct blame_commit *commit = blame->commit;
3776 if (!strcmp(commit->id, NULL_ID))
3777 string_ncopy(ref_commit, "HEAD", 4);
3779 string_copy_rev(ref_commit, commit->id);
3782 static struct view_ops blame_ops = {
3800 char rev[SIZEOF_REV];
3801 char name[SIZEOF_STR];
3805 char rev[SIZEOF_REV];
3806 char name[SIZEOF_STR];
3810 static char status_onbranch[SIZEOF_STR];
3811 static struct status stage_status;
3812 static enum line_type stage_line_type;
3813 static size_t stage_chunks;
3814 static int *stage_chunk;
3816 /* Get fields from the diff line:
3817 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3820 status_get_diff(struct status *file, char *buf, size_t bufsize)
3822 char *old_mode = buf + 1;
3823 char *new_mode = buf + 8;
3824 char *old_rev = buf + 15;
3825 char *new_rev = buf + 56;
3826 char *status = buf + 97;
3829 old_mode[-1] != ':' ||
3830 new_mode[-1] != ' ' ||
3831 old_rev[-1] != ' ' ||
3832 new_rev[-1] != ' ' ||
3836 file->status = *status;
3838 string_copy_rev(file->old.rev, old_rev);
3839 string_copy_rev(file->new.rev, new_rev);
3841 file->old.mode = strtoul(old_mode, NULL, 8);
3842 file->new.mode = strtoul(new_mode, NULL, 8);
3844 file->old.name[0] = file->new.name[0] = 0;
3850 status_run(struct view *view, const char cmd[], char status, enum line_type type)
3852 struct status *file = NULL;
3853 struct status *unmerged = NULL;
3854 char buf[SIZEOF_STR * 4];
3858 pipe = popen(cmd, "r");
3862 add_line_data(view, NULL, type);
3864 while (!feof(pipe) && !ferror(pipe)) {
3868 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3871 bufsize += readsize;
3873 /* Process while we have NUL chars. */
3874 while ((sep = memchr(buf, 0, bufsize))) {
3875 size_t sepsize = sep - buf + 1;
3878 if (!realloc_lines(view, view->line_size + 1))
3881 file = calloc(1, sizeof(*file));
3885 add_line_data(view, file, type);
3888 /* Parse diff info part. */
3890 file->status = status;
3892 string_copy(file->old.rev, NULL_ID);
3894 } else if (!file->status) {
3895 if (!status_get_diff(file, buf, sepsize))
3899 memmove(buf, sep + 1, bufsize);
3901 sep = memchr(buf, 0, bufsize);
3904 sepsize = sep - buf + 1;
3906 /* Collapse all 'M'odified entries that
3907 * follow a associated 'U'nmerged entry.
3909 if (file->status == 'U') {
3912 } else if (unmerged) {
3913 int collapse = !strcmp(buf, unmerged->new.name);
3924 /* Grab the old name for rename/copy. */
3925 if (!*file->old.name &&
3926 (file->status == 'R' || file->status == 'C')) {
3927 sepsize = sep - buf + 1;
3928 string_ncopy(file->old.name, buf, sepsize);
3930 memmove(buf, sep + 1, bufsize);
3932 sep = memchr(buf, 0, bufsize);
3935 sepsize = sep - buf + 1;
3938 /* git-ls-files just delivers a NUL separated
3939 * list of file names similar to the second half
3940 * of the git-diff-* output. */
3941 string_ncopy(file->new.name, buf, sepsize);
3942 if (!*file->old.name)
3943 string_copy(file->old.name, file->new.name);
3945 memmove(buf, sep + 1, bufsize);
3956 if (!view->line[view->lines - 1].data)
3957 add_line_data(view, NULL, LINE_STAT_NONE);
3963 /* Don't show unmerged entries in the staged section. */
3964 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD"
3965 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
3966 #define STATUS_LIST_OTHER_CMD \
3967 "git ls-files -z --others --exclude-per-directory=.gitignore"
3968 #define STATUS_LIST_NO_HEAD_CMD \
3969 "git ls-files -z --cached --exclude-per-directory=.gitignore"
3971 #define STATUS_DIFF_INDEX_SHOW_CMD \
3972 "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null"
3974 #define STATUS_DIFF_FILES_SHOW_CMD \
3975 "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null"
3977 #define STATUS_DIFF_NO_HEAD_SHOW_CMD \
3978 "git diff --no-color --patch-with-stat /dev/null %s 2>/dev/null"
3980 /* First parse staged info using git-diff-index(1), then parse unstaged
3981 * info using git-diff-files(1), and finally untracked files using
3982 * git-ls-files(1). */
3984 status_open(struct view *view)
3986 struct stat statbuf;
3987 char exclude[SIZEOF_STR];
3988 char indexcmd[SIZEOF_STR] = STATUS_DIFF_INDEX_CMD;
3989 char othercmd[SIZEOF_STR] = STATUS_LIST_OTHER_CMD;
3990 unsigned long prev_lineno = view->lineno;
3991 char indexstatus = 0;
3994 for (i = 0; i < view->lines; i++)
3995 free(view->line[i].data);
3997 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
4000 if (!realloc_lines(view, view->line_size + 7))
4003 add_line_data(view, NULL, LINE_STAT_HEAD);
4005 string_copy(status_onbranch, "Initial commit");
4006 else if (!*opt_head)
4007 string_copy(status_onbranch, "Not currently on any branch");
4008 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4012 string_copy(indexcmd, STATUS_LIST_NO_HEAD_CMD);
4016 if (!string_format(exclude, "%s/info/exclude", opt_git_dir))
4019 if (stat(exclude, &statbuf) >= 0) {
4020 size_t cmdsize = strlen(othercmd);
4022 if (!string_format_from(othercmd, &cmdsize, " %s", "--exclude-from=") ||
4023 sq_quote(othercmd, cmdsize, exclude) >= sizeof(othercmd))
4026 cmdsize = strlen(indexcmd);
4028 (!string_format_from(indexcmd, &cmdsize, " %s", "--exclude-from=") ||
4029 sq_quote(indexcmd, cmdsize, exclude) >= sizeof(indexcmd)))
4033 system("git update-index -q --refresh >/dev/null 2>/dev/null");
4035 if (!status_run(view, indexcmd, indexstatus, LINE_STAT_STAGED) ||
4036 !status_run(view, STATUS_DIFF_FILES_CMD, 0, LINE_STAT_UNSTAGED) ||
4037 !status_run(view, othercmd, '?', LINE_STAT_UNTRACKED))
4040 /* If all went well restore the previous line number to stay in
4041 * the context or select a line with something that can be
4043 if (prev_lineno >= view->lines)
4044 prev_lineno = view->lines - 1;
4045 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4047 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4050 /* If the above fails, always skip the "On branch" line. */
4051 if (prev_lineno < view->lines)
4052 view->lineno = prev_lineno;
4056 if (view->lineno < view->offset)
4057 view->offset = view->lineno;
4058 else if (view->offset + view->height <= view->lineno)
4059 view->offset = view->lineno - view->height + 1;
4065 status_draw(struct view *view, struct line *line, unsigned int lineno)
4067 struct status *status = line->data;
4068 enum line_type type;
4072 switch (line->type) {
4073 case LINE_STAT_STAGED:
4074 type = LINE_STAT_SECTION;
4075 text = "Changes to be committed:";
4078 case LINE_STAT_UNSTAGED:
4079 type = LINE_STAT_SECTION;
4080 text = "Changed but not updated:";
4083 case LINE_STAT_UNTRACKED:
4084 type = LINE_STAT_SECTION;
4085 text = "Untracked files:";
4088 case LINE_STAT_NONE:
4089 type = LINE_DEFAULT;
4090 text = " (no files)";
4093 case LINE_STAT_HEAD:
4094 type = LINE_STAT_HEAD;
4095 text = status_onbranch;
4102 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4104 buf[0] = status->status;
4105 if (draw_text(view, line->type, buf, TRUE))
4107 type = LINE_DEFAULT;
4108 text = status->new.name;
4111 draw_text(view, type, text, TRUE);
4116 status_enter(struct view *view, struct line *line)
4118 struct status *status = line->data;
4119 char oldpath[SIZEOF_STR] = "";
4120 char newpath[SIZEOF_STR] = "";
4123 enum open_flags split;
4125 if (line->type == LINE_STAT_NONE ||
4126 (!status && line[1].type == LINE_STAT_NONE)) {
4127 report("No file to diff");
4132 if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath))
4134 /* Diffs for unmerged entries are empty when pasing the
4135 * new path, so leave it empty. */
4136 if (status->status != 'U' &&
4137 sq_quote(newpath, 0, status->new.name) >= sizeof(newpath))
4142 line->type != LINE_STAT_UNTRACKED &&
4143 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
4146 switch (line->type) {
4147 case LINE_STAT_STAGED:
4149 if (!string_format_from(opt_cmd, &cmdsize,
4150 STATUS_DIFF_NO_HEAD_SHOW_CMD,
4154 if (!string_format_from(opt_cmd, &cmdsize,
4155 STATUS_DIFF_INDEX_SHOW_CMD,
4161 info = "Staged changes to %s";
4163 info = "Staged changes";
4166 case LINE_STAT_UNSTAGED:
4167 if (!string_format_from(opt_cmd, &cmdsize,
4168 STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath))
4171 info = "Unstaged changes to %s";
4173 info = "Unstaged changes";
4176 case LINE_STAT_UNTRACKED:
4181 report("No file to show");
4185 opt_pipe = fopen(status->new.name, "r");
4186 info = "Untracked file %s";
4189 case LINE_STAT_HEAD:
4193 die("line type %d not handled in switch", line->type);
4196 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4197 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | split);
4198 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4200 stage_status = *status;
4202 memset(&stage_status, 0, sizeof(stage_status));
4205 stage_line_type = line->type;
4207 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4214 status_exists(struct status *status, enum line_type type)
4216 struct view *view = VIEW(REQ_VIEW_STATUS);
4219 for (line = view->line; line < view->line + view->lines; line++) {
4220 struct status *pos = line->data;
4222 if (line->type == type && pos &&
4223 !strcmp(status->new.name, pos->new.name))
4232 status_update_prepare(enum line_type type)
4234 char cmd[SIZEOF_STR];
4238 type != LINE_STAT_UNTRACKED &&
4239 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4243 case LINE_STAT_STAGED:
4244 string_add(cmd, cmdsize, "git update-index -z --index-info");
4247 case LINE_STAT_UNSTAGED:
4248 case LINE_STAT_UNTRACKED:
4249 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
4253 die("line type %d not handled in switch", type);
4256 return popen(cmd, "w");
4260 status_update_write(FILE *pipe, struct status *status, enum line_type type)
4262 char buf[SIZEOF_STR];
4267 case LINE_STAT_STAGED:
4268 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4271 status->old.name, 0))
4275 case LINE_STAT_UNSTAGED:
4276 case LINE_STAT_UNTRACKED:
4277 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4282 die("line type %d not handled in switch", type);
4285 while (!ferror(pipe) && written < bufsize) {
4286 written += fwrite(buf + written, 1, bufsize - written, pipe);
4289 return written == bufsize;
4293 status_update_file(struct status *status, enum line_type type)
4295 FILE *pipe = status_update_prepare(type);
4301 result = status_update_write(pipe, status, type);
4307 status_update_files(struct view *view, struct line *line)
4309 FILE *pipe = status_update_prepare(line->type);
4311 struct line *pos = view->line + view->lines;
4318 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4321 for (file = 0, done = 0; result && file < files; line++, file++) {
4322 int almost_done = file * 100 / files;
4324 if (almost_done > done) {
4326 string_format(view->ref, "updating file %u of %u (%d%% done)",
4328 update_view_title(view);
4330 result = status_update_write(pipe, line->data, line->type);
4338 status_update(struct view *view)
4340 struct line *line = &view->line[view->lineno];
4342 assert(view->lines);
4345 /* This should work even for the "On branch" line. */
4346 if (line < view->line + view->lines && !line[1].data) {
4347 report("Nothing to update");
4351 if (!status_update_files(view, line + 1)) {
4352 report("Failed to update file status");
4356 } else if (!status_update_file(line->data, line->type)) {
4357 report("Failed to update file status");
4365 status_checkout(struct view *view)
4367 struct line *line = &view->line[view->lineno];
4369 assert(view->lines);
4371 if (!line->data || line->type != LINE_STAT_UNSTAGED) {
4372 /* This should work even for the "On branch" line. */
4373 if (line < view->line + view->lines && !line[1].data) {
4374 report("Nothing to checkout");
4375 } else if (line->type == LINE_STAT_UNTRACKED) {
4376 report("Cannot checkout untracked files");
4377 } else if (line->type == LINE_STAT_STAGED) {
4378 report("Cannot checkout staged files");
4380 report("Cannot checkout multiple files");
4385 struct status *status = line->data;
4386 char cmd[SIZEOF_STR];
4387 char file_sq[SIZEOF_STR];
4389 if (sq_quote(file_sq, 0, status->old.name) < sizeof(file_sq) &&
4390 string_format(cmd, "git checkout %s%s", opt_cdup, file_sq)) {
4391 run_confirm(cmd, "Are you sure you want to overwrite any changes?");
4399 status_request(struct view *view, enum request request, struct line *line)
4401 struct status *status = line->data;
4404 case REQ_STATUS_UPDATE:
4405 if (!status_update(view))
4409 case REQ_STATUS_CHECKOUT:
4410 if (!status_checkout(view))
4414 case REQ_STATUS_MERGE:
4415 if (!status || status->status != 'U') {
4416 report("Merging only possible for files with unmerged status ('U').");
4419 open_mergetool(status->new.name);
4426 open_editor(status->status != '?', status->new.name);
4429 case REQ_VIEW_BLAME:
4431 string_copy(opt_file, status->new.name);
4437 /* After returning the status view has been split to
4438 * show the stage view. No further reloading is
4440 status_enter(view, line);
4444 /* Simply reload the view. */
4451 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4457 status_select(struct view *view, struct line *line)
4459 struct status *status = line->data;
4460 char file[SIZEOF_STR] = "all files";
4464 if (status && !string_format(file, "'%s'", status->new.name))
4467 if (!status && line[1].type == LINE_STAT_NONE)
4470 switch (line->type) {
4471 case LINE_STAT_STAGED:
4472 text = "Press %s to unstage %s for commit";
4475 case LINE_STAT_UNSTAGED:
4476 text = "Press %s to stage %s for commit";
4479 case LINE_STAT_UNTRACKED:
4480 text = "Press %s to stage %s for addition";
4483 case LINE_STAT_HEAD:
4484 case LINE_STAT_NONE:
4485 text = "Nothing to update";
4489 die("line type %d not handled in switch", line->type);
4492 if (status && status->status == 'U') {
4493 text = "Press %s to resolve conflict in %s";
4494 key = get_key(REQ_STATUS_MERGE);
4497 key = get_key(REQ_STATUS_UPDATE);
4500 string_format(view->ref, text, key, file);
4504 status_grep(struct view *view, struct line *line)
4506 struct status *status = line->data;
4507 enum { S_STATUS, S_NAME, S_END } state;
4514 for (state = S_STATUS; state < S_END; state++) {
4518 case S_NAME: text = status->new.name; break;
4520 buf[0] = status->status;
4528 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4535 static struct view_ops status_ops = {
4547 stage_diff_line(FILE *pipe, struct line *line)
4549 char *buf = line->data;
4550 size_t bufsize = strlen(buf);
4553 while (!ferror(pipe) && written < bufsize) {
4554 written += fwrite(buf + written, 1, bufsize - written, pipe);
4559 return written == bufsize;
4563 stage_diff_write(FILE *pipe, struct line *line, struct line *end)
4565 while (line < end) {
4566 if (!stage_diff_line(pipe, line++))
4568 if (line->type == LINE_DIFF_CHUNK ||
4569 line->type == LINE_DIFF_HEADER)
4576 static struct line *
4577 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4579 for (; view->line < line; line--)
4580 if (line->type == type)
4587 stage_update_chunk(struct view *view, struct line *chunk)
4589 char cmd[SIZEOF_STR];
4591 struct line *diff_hdr;
4594 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4599 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4602 if (!string_format_from(cmd, &cmdsize,
4603 "git apply --whitespace=nowarn --cached %s - && "
4604 "git update-index -q --unmerged --refresh 2>/dev/null",
4605 stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
4608 pipe = popen(cmd, "w");
4612 if (!stage_diff_write(pipe, diff_hdr, chunk) ||
4613 !stage_diff_write(pipe, chunk, view->line + view->lines))
4618 return chunk ? TRUE : FALSE;
4622 stage_update(struct view *view, struct line *line)
4624 struct line *chunk = NULL;
4626 if (!opt_no_head && stage_line_type != LINE_STAT_UNTRACKED)
4627 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4630 if (!stage_update_chunk(view, chunk)) {
4631 report("Failed to apply chunk");
4635 } else if (!stage_status.status) {
4636 view = VIEW(REQ_VIEW_STATUS);
4638 for (line = view->line; line < view->line + view->lines; line++)
4639 if (line->type == stage_line_type)
4642 if (!status_update_files(view, line + 1)) {
4643 report("Failed to update files");
4647 } else if (!status_update_file(&stage_status, stage_line_type)) {
4648 report("Failed to update file");
4656 stage_next(struct view *view, struct line *line)
4660 if (!stage_chunks) {
4661 static size_t alloc = 0;
4664 for (line = view->line; line < view->line + view->lines; line++) {
4665 if (line->type != LINE_DIFF_CHUNK)
4668 tmp = realloc_items(stage_chunk, &alloc,
4669 stage_chunks, sizeof(*tmp));
4671 report("Allocation failure");
4676 stage_chunk[stage_chunks++] = line - view->line;
4680 for (i = 0; i < stage_chunks; i++) {
4681 if (stage_chunk[i] > view->lineno) {
4682 do_scroll_view(view, stage_chunk[i] - view->lineno);
4683 report("Chunk %d of %d", i + 1, stage_chunks);
4688 report("No next chunk found");
4692 stage_request(struct view *view, enum request request, struct line *line)
4695 case REQ_STATUS_UPDATE:
4696 if (!stage_update(view, line))
4700 case REQ_STAGE_NEXT:
4701 if (stage_line_type == LINE_STAT_UNTRACKED) {
4702 report("File is untracked; press %s to add",
4703 get_key(REQ_STATUS_UPDATE));
4706 stage_next(view, line);
4710 if (!stage_status.new.name[0])
4713 open_editor(stage_status.status != '?', stage_status.new.name);
4717 /* Reload everything ... */
4720 case REQ_VIEW_BLAME:
4721 if (stage_status.new.name[0]) {
4722 string_copy(opt_file, stage_status.new.name);
4728 return pager_request(view, request, line);
4734 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4736 /* Check whether the staged entry still exists, and close the
4737 * stage view if it doesn't. */
4738 if (!status_exists(&stage_status, stage_line_type))
4739 return REQ_VIEW_CLOSE;
4741 if (stage_line_type == LINE_STAT_UNTRACKED)
4742 opt_pipe = fopen(stage_status.new.name, "r");
4744 string_copy(opt_cmd, view->cmd);
4745 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4750 static struct view_ops stage_ops = {
4766 char id[SIZEOF_REV]; /* SHA1 ID. */
4767 char title[128]; /* First line of the commit message. */
4768 char author[75]; /* Author of the commit. */
4769 struct tm time; /* Date from the author ident. */
4770 struct ref **refs; /* Repository references. */
4771 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
4772 size_t graph_size; /* The width of the graph array. */
4773 bool has_parents; /* Rewritten --parents seen. */
4776 /* Size of rev graph with no "padding" columns */
4777 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
4780 struct rev_graph *prev, *next, *parents;
4781 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
4783 struct commit *commit;
4785 unsigned int boundary:1;
4788 /* Parents of the commit being visualized. */
4789 static struct rev_graph graph_parents[4];
4791 /* The current stack of revisions on the graph. */
4792 static struct rev_graph graph_stacks[4] = {
4793 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
4794 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
4795 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
4796 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
4800 graph_parent_is_merge(struct rev_graph *graph)
4802 return graph->parents->size > 1;
4806 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
4808 struct commit *commit = graph->commit;
4810 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
4811 commit->graph[commit->graph_size++] = symbol;
4815 clear_rev_graph(struct rev_graph *graph)
4817 graph->boundary = 0;
4818 graph->size = graph->pos = 0;
4819 graph->commit = NULL;
4820 memset(graph->parents, 0, sizeof(*graph->parents));
4824 done_rev_graph(struct rev_graph *graph)
4826 if (graph_parent_is_merge(graph) &&
4827 graph->pos < graph->size - 1 &&
4828 graph->next->size == graph->size + graph->parents->size - 1) {
4829 size_t i = graph->pos + graph->parents->size - 1;
4831 graph->commit->graph_size = i * 2;
4832 while (i < graph->next->size - 1) {
4833 append_to_rev_graph(graph, ' ');
4834 append_to_rev_graph(graph, '\\');
4839 clear_rev_graph(graph);
4843 push_rev_graph(struct rev_graph *graph, char *parent)
4847 /* "Collapse" duplicate parents lines.
4849 * FIXME: This needs to also update update the drawn graph but
4850 * for now it just serves as a method for pruning graph lines. */
4851 for (i = 0; i < graph->size; i++)
4852 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
4855 if (graph->size < SIZEOF_REVITEMS) {
4856 string_copy_rev(graph->rev[graph->size++], parent);
4861 get_rev_graph_symbol(struct rev_graph *graph)
4865 if (graph->boundary)
4866 symbol = REVGRAPH_BOUND;
4867 else if (graph->parents->size == 0)
4868 symbol = REVGRAPH_INIT;
4869 else if (graph_parent_is_merge(graph))
4870 symbol = REVGRAPH_MERGE;
4871 else if (graph->pos >= graph->size)
4872 symbol = REVGRAPH_BRANCH;
4874 symbol = REVGRAPH_COMMIT;
4880 draw_rev_graph(struct rev_graph *graph)
4883 chtype separator, line;
4885 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
4886 static struct rev_filler fillers[] = {
4892 chtype symbol = get_rev_graph_symbol(graph);
4893 struct rev_filler *filler;
4896 if (opt_line_graphics)
4897 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
4899 filler = &fillers[DEFAULT];
4901 for (i = 0; i < graph->pos; i++) {
4902 append_to_rev_graph(graph, filler->line);
4903 if (graph_parent_is_merge(graph->prev) &&
4904 graph->prev->pos == i)
4905 filler = &fillers[RSHARP];
4907 append_to_rev_graph(graph, filler->separator);
4910 /* Place the symbol for this revision. */
4911 append_to_rev_graph(graph, symbol);
4913 if (graph->prev->size > graph->size)
4914 filler = &fillers[RDIAG];
4916 filler = &fillers[DEFAULT];
4920 for (; i < graph->size; i++) {
4921 append_to_rev_graph(graph, filler->separator);
4922 append_to_rev_graph(graph, filler->line);
4923 if (graph_parent_is_merge(graph->prev) &&
4924 i < graph->prev->pos + graph->parents->size)
4925 filler = &fillers[RSHARP];
4926 if (graph->prev->size > graph->size)
4927 filler = &fillers[LDIAG];
4930 if (graph->prev->size > graph->size) {
4931 append_to_rev_graph(graph, filler->separator);
4932 if (filler->line != ' ')
4933 append_to_rev_graph(graph, filler->line);
4937 /* Prepare the next rev graph */
4939 prepare_rev_graph(struct rev_graph *graph)
4943 /* First, traverse all lines of revisions up to the active one. */
4944 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
4945 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
4948 push_rev_graph(graph->next, graph->rev[graph->pos]);
4951 /* Interleave the new revision parent(s). */
4952 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
4953 push_rev_graph(graph->next, graph->parents->rev[i]);
4955 /* Lastly, put any remaining revisions. */
4956 for (i = graph->pos + 1; i < graph->size; i++)
4957 push_rev_graph(graph->next, graph->rev[i]);
4961 update_rev_graph(struct rev_graph *graph)
4963 /* If this is the finalizing update ... */
4965 prepare_rev_graph(graph);
4967 /* Graph visualization needs a one rev look-ahead,
4968 * so the first update doesn't visualize anything. */
4969 if (!graph->prev->commit)
4972 draw_rev_graph(graph->prev);
4973 done_rev_graph(graph->prev->prev);
4982 main_draw(struct view *view, struct line *line, unsigned int lineno)
4984 struct commit *commit = line->data;
4986 if (!*commit->author)
4989 if (opt_date && draw_date(view, &commit->time))
4993 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
4996 if (opt_rev_graph && commit->graph_size &&
4997 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5000 if (opt_show_refs && commit->refs) {
5004 enum line_type type;
5006 if (commit->refs[i]->head)
5007 type = LINE_MAIN_HEAD;
5008 else if (commit->refs[i]->ltag)
5009 type = LINE_MAIN_LOCAL_TAG;
5010 else if (commit->refs[i]->tag)
5011 type = LINE_MAIN_TAG;
5012 else if (commit->refs[i]->tracked)
5013 type = LINE_MAIN_TRACKED;
5014 else if (commit->refs[i]->remote)
5015 type = LINE_MAIN_REMOTE;
5017 type = LINE_MAIN_REF;
5019 if (draw_text(view, type, "[", TRUE) ||
5020 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5021 draw_text(view, type, "]", TRUE))
5024 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5026 } while (commit->refs[i++]->next);
5029 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5033 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5035 main_read(struct view *view, char *line)
5037 static struct rev_graph *graph = graph_stacks;
5038 enum line_type type;
5039 struct commit *commit;
5044 if (!view->lines && !view->parent)
5045 die("No revisions match the given arguments.");
5046 if (view->lines > 0) {
5047 commit = view->line[view->lines - 1].data;
5048 if (!*commit->author) {
5051 graph->commit = NULL;
5054 update_rev_graph(graph);
5056 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5057 clear_rev_graph(&graph_stacks[i]);
5061 type = get_line_type(line);
5062 if (type == LINE_COMMIT) {
5063 commit = calloc(1, sizeof(struct commit));
5067 line += STRING_SIZE("commit ");
5069 graph->boundary = 1;
5073 string_copy_rev(commit->id, line);
5074 commit->refs = get_refs(commit->id);
5075 graph->commit = commit;
5076 add_line_data(view, commit, LINE_MAIN_COMMIT);
5078 while ((line = strchr(line, ' '))) {
5080 push_rev_graph(graph->parents, line);
5081 commit->has_parents = TRUE;
5088 commit = view->line[view->lines - 1].data;
5092 if (commit->has_parents)
5094 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5099 /* Parse author lines where the name may be empty:
5100 * author <email@address.tld> 1138474660 +0100
5102 char *ident = line + STRING_SIZE("author ");
5103 char *nameend = strchr(ident, '<');
5104 char *emailend = strchr(ident, '>');
5106 if (!nameend || !emailend)
5109 update_rev_graph(graph);
5110 graph = graph->next;
5112 *nameend = *emailend = 0;
5113 ident = chomp_string(ident);
5115 ident = chomp_string(nameend + 1);
5120 string_ncopy(commit->author, ident, strlen(ident));
5122 /* Parse epoch and timezone */
5123 if (emailend[1] == ' ') {
5124 char *secs = emailend + 2;
5125 char *zone = strchr(secs, ' ');
5126 time_t time = (time_t) atol(secs);
5128 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5132 tz = ('0' - zone[1]) * 60 * 60 * 10;
5133 tz += ('0' - zone[2]) * 60 * 60;
5134 tz += ('0' - zone[3]) * 60;
5135 tz += ('0' - zone[4]) * 60;
5143 gmtime_r(&time, &commit->time);
5148 /* Fill in the commit title if it has not already been set. */
5149 if (commit->title[0])
5152 /* Require titles to start with a non-space character at the
5153 * offset used by git log. */
5154 if (strncmp(line, " ", 4))
5157 /* Well, if the title starts with a whitespace character,
5158 * try to be forgiving. Otherwise we end up with no title. */
5159 while (isspace(*line))
5163 /* FIXME: More graceful handling of titles; append "..." to
5164 * shortened titles, etc. */
5166 string_ncopy(commit->title, line, strlen(line));
5173 main_request(struct view *view, enum request request, struct line *line)
5175 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5179 open_view(view, REQ_VIEW_DIFF, flags);
5182 string_copy(opt_cmd, view->cmd);
5183 open_view(view, REQ_VIEW_MAIN, OPEN_RELOAD);
5193 grep_refs(struct ref **refs, regex_t *regex)
5201 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5203 } while (refs[i++]->next);
5209 main_grep(struct view *view, struct line *line)
5211 struct commit *commit = line->data;
5212 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5213 char buf[DATE_COLS + 1];
5216 for (state = S_TITLE; state < S_END; state++) {
5220 case S_TITLE: text = commit->title; break;
5224 text = commit->author;
5229 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5236 if (grep_refs(commit->refs, view->regex) == TRUE)
5243 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5251 main_select(struct view *view, struct line *line)
5253 struct commit *commit = line->data;
5255 string_copy_rev(view->ref, commit->id);
5256 string_copy_rev(ref_commit, view->ref);
5259 static struct view_ops main_ops = {
5271 * Unicode / UTF-8 handling
5273 * NOTE: Much of the following code for dealing with unicode is derived from
5274 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5275 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5278 /* I've (over)annotated a lot of code snippets because I am not entirely
5279 * confident that the approach taken by this small UTF-8 interface is correct.
5283 unicode_width(unsigned long c)
5286 (c <= 0x115f /* Hangul Jamo */
5289 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5291 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5292 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5293 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5294 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5295 || (c >= 0xffe0 && c <= 0xffe6)
5296 || (c >= 0x20000 && c <= 0x2fffd)
5297 || (c >= 0x30000 && c <= 0x3fffd)))
5301 return opt_tab_size;
5306 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5307 * Illegal bytes are set one. */
5308 static const unsigned char utf8_bytes[256] = {
5309 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,
5310 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,
5311 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,
5312 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,
5313 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,
5314 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,
5315 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,
5316 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,
5319 /* Decode UTF-8 multi-byte representation into a unicode character. */
5320 static inline unsigned long
5321 utf8_to_unicode(const char *string, size_t length)
5323 unsigned long unicode;
5327 unicode = string[0];
5330 unicode = (string[0] & 0x1f) << 6;
5331 unicode += (string[1] & 0x3f);
5334 unicode = (string[0] & 0x0f) << 12;
5335 unicode += ((string[1] & 0x3f) << 6);
5336 unicode += (string[2] & 0x3f);
5339 unicode = (string[0] & 0x0f) << 18;
5340 unicode += ((string[1] & 0x3f) << 12);
5341 unicode += ((string[2] & 0x3f) << 6);
5342 unicode += (string[3] & 0x3f);
5345 unicode = (string[0] & 0x0f) << 24;
5346 unicode += ((string[1] & 0x3f) << 18);
5347 unicode += ((string[2] & 0x3f) << 12);
5348 unicode += ((string[3] & 0x3f) << 6);
5349 unicode += (string[4] & 0x3f);
5352 unicode = (string[0] & 0x01) << 30;
5353 unicode += ((string[1] & 0x3f) << 24);
5354 unicode += ((string[2] & 0x3f) << 18);
5355 unicode += ((string[3] & 0x3f) << 12);
5356 unicode += ((string[4] & 0x3f) << 6);
5357 unicode += (string[5] & 0x3f);
5360 die("Invalid unicode length");
5363 /* Invalid characters could return the special 0xfffd value but NUL
5364 * should be just as good. */
5365 return unicode > 0xffff ? 0 : unicode;
5368 /* Calculates how much of string can be shown within the given maximum width
5369 * and sets trimmed parameter to non-zero value if all of string could not be
5370 * shown. If the reserve flag is TRUE, it will reserve at least one
5371 * trailing character, which can be useful when drawing a delimiter.
5373 * Returns the number of bytes to output from string to satisfy max_width. */
5375 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5377 const char *start = string;
5378 const char *end = strchr(string, '\0');
5379 unsigned char last_bytes = 0;
5380 size_t last_ucwidth = 0;
5385 while (string < end) {
5386 int c = *(unsigned char *) string;
5387 unsigned char bytes = utf8_bytes[c];
5389 unsigned long unicode;
5391 if (string + bytes > end)
5394 /* Change representation to figure out whether
5395 * it is a single- or double-width character. */
5397 unicode = utf8_to_unicode(string, bytes);
5398 /* FIXME: Graceful handling of invalid unicode character. */
5402 ucwidth = unicode_width(unicode);
5404 if (*width > max_width) {
5407 if (reserve && *width == max_width) {
5408 string -= last_bytes;
5409 *width -= last_ucwidth;
5416 last_ucwidth = ucwidth;
5419 return string - start;
5427 /* Whether or not the curses interface has been initialized. */
5428 static bool cursed = FALSE;
5430 /* The status window is used for polling keystrokes. */
5431 static WINDOW *status_win;
5433 static bool status_empty = TRUE;
5435 /* Update status and title window. */
5437 report(const char *msg, ...)
5439 struct view *view = display[current_view];
5445 char buf[SIZEOF_STR];
5448 va_start(args, msg);
5449 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5450 buf[sizeof(buf) - 1] = 0;
5451 buf[sizeof(buf) - 2] = '.';
5452 buf[sizeof(buf) - 3] = '.';
5453 buf[sizeof(buf) - 4] = '.';
5459 if (!status_empty || *msg) {
5462 va_start(args, msg);
5464 wmove(status_win, 0, 0);
5466 vwprintw(status_win, msg, args);
5467 status_empty = FALSE;
5469 status_empty = TRUE;
5471 wclrtoeol(status_win);
5472 wrefresh(status_win);
5477 update_view_title(view);
5478 update_display_cursor(view);
5481 /* Controls when nodelay should be in effect when polling user input. */
5483 set_nonblocking_input(bool loading)
5485 static unsigned int loading_views;
5487 if ((loading == FALSE && loading_views-- == 1) ||
5488 (loading == TRUE && loading_views++ == 0))
5489 nodelay(status_win, loading);
5497 /* Initialize the curses library */
5498 if (isatty(STDIN_FILENO)) {
5499 cursed = !!initscr();
5501 /* Leave stdin and stdout alone when acting as a pager. */
5502 FILE *io = fopen("/dev/tty", "r+");
5505 die("Failed to open /dev/tty");
5506 cursed = !!newterm(NULL, io, io);
5510 die("Failed to initialize curses");
5512 nonl(); /* Tell curses not to do NL->CR/NL on output */
5513 cbreak(); /* Take input chars one at a time, no wait for \n */
5514 noecho(); /* Don't echo input */
5515 leaveok(stdscr, TRUE);
5520 getmaxyx(stdscr, y, x);
5521 status_win = newwin(1, 0, y - 1, 0);
5523 die("Failed to create status window");
5525 /* Enable keyboard mapping */
5526 keypad(status_win, TRUE);
5527 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5529 TABSIZE = opt_tab_size;
5530 if (opt_line_graphics) {
5531 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5536 prompt_yesno(const char *prompt)
5538 enum { WAIT, STOP, CANCEL } status = WAIT;
5539 bool answer = FALSE;
5541 while (status == WAIT) {
5547 foreach_view (view, i)
5552 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
5553 wclrtoeol(status_win);
5555 /* Refresh, accept single keystroke of input */
5556 key = wgetch(status_win);
5580 /* Clear the status window */
5581 status_empty = FALSE;
5588 read_prompt(const char *prompt)
5590 enum { READING, STOP, CANCEL } status = READING;
5591 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
5594 while (status == READING) {
5600 foreach_view (view, i)
5605 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5606 wclrtoeol(status_win);
5608 /* Refresh, accept single keystroke of input */
5609 key = wgetch(status_win);
5614 status = pos ? STOP : CANCEL;
5632 if (pos >= sizeof(buf)) {
5633 report("Input string too long");
5638 buf[pos++] = (char) key;
5642 /* Clear the status window */
5643 status_empty = FALSE;
5646 if (status == CANCEL)
5655 * Repository references
5658 static struct ref *refs = NULL;
5659 static size_t refs_alloc = 0;
5660 static size_t refs_size = 0;
5662 /* Id <-> ref store */
5663 static struct ref ***id_refs = NULL;
5664 static size_t id_refs_alloc = 0;
5665 static size_t id_refs_size = 0;
5667 static struct ref **
5670 struct ref ***tmp_id_refs;
5671 struct ref **ref_list = NULL;
5672 size_t ref_list_alloc = 0;
5673 size_t ref_list_size = 0;
5676 for (i = 0; i < id_refs_size; i++)
5677 if (!strcmp(id, id_refs[i][0]->id))
5680 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
5685 id_refs = tmp_id_refs;
5687 for (i = 0; i < refs_size; i++) {
5690 if (strcmp(id, refs[i].id))
5693 tmp = realloc_items(ref_list, &ref_list_alloc,
5694 ref_list_size + 1, sizeof(*ref_list));
5702 if (ref_list_size > 0)
5703 ref_list[ref_list_size - 1]->next = 1;
5704 ref_list[ref_list_size] = &refs[i];
5706 /* XXX: The properties of the commit chains ensures that we can
5707 * safely modify the shared ref. The repo references will
5708 * always be similar for the same id. */
5709 ref_list[ref_list_size]->next = 0;
5714 id_refs[id_refs_size++] = ref_list;
5720 read_ref(char *id, size_t idlen, char *name, size_t namelen)
5725 bool remote = FALSE;
5726 bool tracked = FALSE;
5727 bool check_replace = FALSE;
5730 if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) {
5731 if (!strcmp(name + namelen - 3, "^{}")) {
5734 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
5735 check_replace = TRUE;
5741 namelen -= STRING_SIZE("refs/tags/");
5742 name += STRING_SIZE("refs/tags/");
5744 } else if (!strncmp(name, "refs/remotes/", STRING_SIZE("refs/remotes/"))) {
5746 namelen -= STRING_SIZE("refs/remotes/");
5747 name += STRING_SIZE("refs/remotes/");
5748 tracked = !strcmp(opt_remote, name);
5750 } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5751 namelen -= STRING_SIZE("refs/heads/");
5752 name += STRING_SIZE("refs/heads/");
5753 head = !strncmp(opt_head, name, namelen);
5755 } else if (!strcmp(name, "HEAD")) {
5756 opt_no_head = FALSE;
5760 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
5761 /* it's an annotated tag, replace the previous sha1 with the
5762 * resolved commit id; relies on the fact git-ls-remote lists
5763 * the commit id of an annotated tag right beofre the commit id
5765 refs[refs_size - 1].ltag = ltag;
5766 string_copy_rev(refs[refs_size - 1].id, id);
5770 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
5774 ref = &refs[refs_size++];
5775 ref->name = malloc(namelen + 1);
5779 strncpy(ref->name, name, namelen);
5780 ref->name[namelen] = 0;
5784 ref->remote = remote;
5785 ref->tracked = tracked;
5786 string_copy_rev(ref->id, id);
5794 const char *cmd_env = getenv("TIG_LS_REMOTE");
5795 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
5797 return read_properties(popen(cmd, "r"), "\t", read_ref);
5801 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
5803 if (!strcmp(name, "i18n.commitencoding"))
5804 string_ncopy(opt_encoding, value, valuelen);
5806 if (!strcmp(name, "core.editor"))
5807 string_ncopy(opt_editor, value, valuelen);
5809 /* branch.<head>.remote */
5811 !strncmp(name, "branch.", 7) &&
5812 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5813 !strcmp(name + 7 + strlen(opt_head), ".remote"))
5814 string_ncopy(opt_remote, value, valuelen);
5816 if (*opt_head && *opt_remote &&
5817 !strncmp(name, "branch.", 7) &&
5818 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5819 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
5820 size_t from = strlen(opt_remote);
5822 if (!strncmp(value, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5823 value += STRING_SIZE("refs/heads/");
5824 valuelen -= STRING_SIZE("refs/heads/");
5827 if (!string_format_from(opt_remote, &from, "/%s", value))
5835 load_git_config(void)
5837 return read_properties(popen(GIT_CONFIG " --list", "r"),
5838 "=", read_repo_config_option);
5842 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
5844 if (!opt_git_dir[0]) {
5845 string_ncopy(opt_git_dir, name, namelen);
5847 } else if (opt_is_inside_work_tree == -1) {
5848 /* This can be 3 different values depending on the
5849 * version of git being used. If git-rev-parse does not
5850 * understand --is-inside-work-tree it will simply echo
5851 * the option else either "true" or "false" is printed.
5852 * Default to true for the unknown case. */
5853 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
5855 } else if (opt_cdup[0] == ' ') {
5856 string_ncopy(opt_cdup, name, namelen);
5858 if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5859 namelen -= STRING_SIZE("refs/heads/");
5860 name += STRING_SIZE("refs/heads/");
5861 string_ncopy(opt_head, name, namelen);
5869 load_repo_info(void)
5872 FILE *pipe = popen("(git rev-parse --git-dir --is-inside-work-tree "
5873 " --show-cdup; git symbolic-ref HEAD) 2>/dev/null", "r");
5875 /* XXX: The line outputted by "--show-cdup" can be empty so
5876 * initialize it to something invalid to make it possible to
5877 * detect whether it has been set or not. */
5880 result = read_properties(pipe, "=", read_repo_info);
5881 if (opt_cdup[0] == ' ')
5888 read_properties(FILE *pipe, const char *separators,
5889 int (*read_property)(char *, size_t, char *, size_t))
5891 char buffer[BUFSIZ];
5898 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
5903 name = chomp_string(name);
5904 namelen = strcspn(name, separators);
5906 if (name[namelen]) {
5908 value = chomp_string(name + namelen + 1);
5909 valuelen = strlen(value);
5916 state = read_property(name, namelen, value, valuelen);
5919 if (state != ERR && ferror(pipe))
5932 static void __NORETURN
5935 /* XXX: Restore tty modes and let the OS cleanup the rest! */
5941 static void __NORETURN
5942 die(const char *err, ...)
5948 va_start(args, err);
5949 fputs("tig: ", stderr);
5950 vfprintf(stderr, err, args);
5951 fputs("\n", stderr);
5958 warn(const char *msg, ...)
5962 va_start(args, msg);
5963 fputs("tig warning: ", stderr);
5964 vfprintf(stderr, msg, args);
5965 fputs("\n", stderr);
5970 main(int argc, char *argv[])
5973 enum request request;
5976 signal(SIGINT, quit);
5978 if (setlocale(LC_ALL, "")) {
5979 char *codeset = nl_langinfo(CODESET);
5981 string_ncopy(opt_codeset, codeset, strlen(codeset));
5984 if (load_repo_info() == ERR)
5985 die("Failed to load repo info.");
5987 if (load_options() == ERR)
5988 die("Failed to load user config.");
5990 if (load_git_config() == ERR)
5991 die("Failed to load repo config.");
5993 request = parse_options(argc, argv);
5994 if (request == REQ_NONE)
5997 /* Require a git repository unless when running in pager mode. */
5998 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
5999 die("Not a git repository");
6001 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6004 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6005 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6006 if (opt_iconv == ICONV_NONE)
6007 die("Failed to initialize character set conversion");
6010 if (*opt_git_dir && load_refs() == ERR)
6011 die("Failed to load refs.");
6013 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
6014 view->cmd_env = getenv(view->cmd_env);
6018 while (view_driver(display[current_view], request)) {
6022 foreach_view (view, i)
6025 /* Refresh, accept single keystroke of input */
6026 key = wgetch(status_win);
6028 /* wgetch() with nodelay() enabled returns ERR when there's no
6035 request = get_keybinding(display[current_view]->keymap, key);
6037 /* Some low-level request handling. This keeps access to
6038 * status_win restricted. */
6042 char *cmd = read_prompt(":");
6044 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
6045 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
6046 request = REQ_VIEW_DIFF;
6048 request = REQ_VIEW_PAGER;
6051 /* Always reload^Wrerun commands from the prompt. */
6052 open_view(view, request, OPEN_RELOAD);
6059 case REQ_SEARCH_BACK:
6061 const char *prompt = request == REQ_SEARCH
6063 char *search = read_prompt(prompt);
6066 string_ncopy(opt_search, search, strlen(search));
6071 case REQ_SCREEN_RESIZE:
6075 getmaxyx(stdscr, height, width);
6077 /* Resize the status view and let the view driver take
6078 * care of resizing the displayed views. */
6079 wresize(status_win, 1, width);
6080 mvwin(status_win, height - 1, 0);
6081 wrefresh(status_win);