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. */
81 #define SIZEOF_ARG 32 /* Default argument array size. */
85 #define REVGRAPH_INIT 'I'
86 #define REVGRAPH_MERGE 'M'
87 #define REVGRAPH_BRANCH '+'
88 #define REVGRAPH_COMMIT '*'
89 #define REVGRAPH_BOUND '^'
91 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
93 /* This color name can be used to refer to the default term colors. */
94 #define COLOR_DEFAULT (-1)
96 #define ICONV_NONE ((iconv_t) -1)
98 #define ICONV_CONST /* nothing */
101 /* The format and size of the date column in the main view. */
102 #define DATE_FORMAT "%Y-%m-%d %H:%M"
103 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
105 #define AUTHOR_COLS 20
108 /* The default interval between line numbers. */
109 #define NUMBER_INTERVAL 5
113 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
115 #define NULL_ID "0000000000000000000000000000000000000000"
118 #define GIT_CONFIG "config"
121 #define TIG_LS_REMOTE \
122 "git ls-remote . 2>/dev/null"
124 #define TIG_DIFF_CMD \
125 "git show --pretty=fuller --no-color --root --patch-with-stat --find-copies-harder -C %s 2>/dev/null"
127 #define TIG_LOG_CMD \
128 "git log --no-color --cc --stat -n100 %s 2>/dev/null"
130 #define TIG_MAIN_BASE \
131 "git log --no-color --pretty=raw --parents --topo-order"
133 #define TIG_MAIN_CMD \
134 TIG_MAIN_BASE " %s 2>/dev/null"
136 #define TIG_TREE_CMD \
139 #define TIG_BLOB_CMD \
140 "git cat-file blob %s"
142 /* XXX: Needs to be defined to the empty string. */
143 #define TIG_HELP_CMD ""
144 #define TIG_PAGER_CMD ""
145 #define TIG_STATUS_CMD ""
146 #define TIG_STAGE_CMD ""
147 #define TIG_BLAME_CMD ""
149 /* Some ascii-shorthands fitted into the ncurses namespace. */
151 #define KEY_RETURN '\r'
156 char *name; /* Ref name; tag or head names are shortened. */
157 char id[SIZEOF_REV]; /* Commit SHA1 ID */
158 unsigned int head:1; /* Is it the current HEAD? */
159 unsigned int tag:1; /* Is it a tag? */
160 unsigned int ltag:1; /* If so, is the tag local? */
161 unsigned int remote:1; /* Is it a remote ref? */
162 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
163 unsigned int next:1; /* For ref lists: are there more refs? */
166 static struct ref **get_refs(char *id);
175 set_from_int_map(struct int_map *map, size_t map_size,
176 int *value, const char *name, int namelen)
181 for (i = 0; i < map_size; i++)
182 if (namelen == map[i].namelen &&
183 !strncasecmp(name, map[i].name, namelen)) {
184 *value = map[i].value;
197 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
199 if (srclen > dstlen - 1)
202 strncpy(dst, src, srclen);
206 /* Shorthands for safely copying into a fixed buffer. */
208 #define string_copy(dst, src) \
209 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
211 #define string_ncopy(dst, src, srclen) \
212 string_ncopy_do(dst, sizeof(dst), src, srclen)
214 #define string_copy_rev(dst, src) \
215 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
217 #define string_add(dst, from, src) \
218 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
221 chomp_string(char *name)
225 while (isspace(*name))
228 namelen = strlen(name) - 1;
229 while (namelen > 0 && isspace(name[namelen]))
236 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
239 size_t pos = bufpos ? *bufpos : 0;
242 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
248 return pos >= bufsize ? FALSE : TRUE;
251 #define string_format(buf, fmt, args...) \
252 string_nformat(buf, sizeof(buf), NULL, fmt, args)
254 #define string_format_from(buf, from, fmt, args...) \
255 string_nformat(buf, sizeof(buf), from, fmt, args)
258 string_enum_compare(const char *str1, const char *str2, int len)
262 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
264 /* Diff-Header == DIFF_HEADER */
265 for (i = 0; i < len; i++) {
266 if (toupper(str1[i]) == toupper(str2[i]))
269 if (string_enum_sep(str1[i]) &&
270 string_enum_sep(str2[i]))
273 return str1[i] - str2[i];
281 * NOTE: The following is a slightly modified copy of the git project's shell
282 * quoting routines found in the quote.c file.
284 * Help to copy the thing properly quoted for the shell safety. any single
285 * quote is replaced with '\'', any exclamation point is replaced with '\!',
286 * and the whole thing is enclosed in a
289 * original sq_quote result
290 * name ==> name ==> 'name'
291 * a b ==> a b ==> 'a b'
292 * a'b ==> a'\''b ==> 'a'\''b'
293 * a!b ==> a'\!'b ==> 'a'\!'b'
297 sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src)
301 #define BUFPUT(x) do { if (bufsize < SIZEOF_STR) buf[bufsize++] = (x); } while (0)
304 while ((c = *src++)) {
305 if (c == '\'' || c == '!') {
316 if (bufsize < SIZEOF_STR)
328 /* XXX: Keep the view request first and in sync with views[]. */ \
329 REQ_GROUP("View switching") \
330 REQ_(VIEW_MAIN, "Show main view"), \
331 REQ_(VIEW_DIFF, "Show diff view"), \
332 REQ_(VIEW_LOG, "Show log view"), \
333 REQ_(VIEW_TREE, "Show tree view"), \
334 REQ_(VIEW_BLOB, "Show blob view"), \
335 REQ_(VIEW_BLAME, "Show blame view"), \
336 REQ_(VIEW_HELP, "Show help page"), \
337 REQ_(VIEW_PAGER, "Show pager view"), \
338 REQ_(VIEW_STATUS, "Show status view"), \
339 REQ_(VIEW_STAGE, "Show stage view"), \
341 REQ_GROUP("View manipulation") \
342 REQ_(ENTER, "Enter current line and scroll"), \
343 REQ_(NEXT, "Move to next"), \
344 REQ_(PREVIOUS, "Move to previous"), \
345 REQ_(VIEW_NEXT, "Move focus to next view"), \
346 REQ_(REFRESH, "Reload and refresh"), \
347 REQ_(MAXIMIZE, "Maximize the current view"), \
348 REQ_(VIEW_CLOSE, "Close the current view"), \
349 REQ_(QUIT, "Close all views and quit"), \
351 REQ_GROUP("Cursor navigation") \
352 REQ_(MOVE_UP, "Move cursor one line up"), \
353 REQ_(MOVE_DOWN, "Move cursor one line down"), \
354 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
355 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
356 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
357 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
359 REQ_GROUP("Scrolling") \
360 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
361 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
362 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
363 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
365 REQ_GROUP("Searching") \
366 REQ_(SEARCH, "Search the view"), \
367 REQ_(SEARCH_BACK, "Search backwards in the view"), \
368 REQ_(FIND_NEXT, "Find next search match"), \
369 REQ_(FIND_PREV, "Find previous search match"), \
372 REQ_(PROMPT, "Bring up the prompt"), \
373 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
374 REQ_(SCREEN_RESIZE, "Resize the screen"), \
375 REQ_(SHOW_VERSION, "Show version information"), \
376 REQ_(STOP_LOADING, "Stop all loading views"), \
377 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
378 REQ_(TOGGLE_DATE, "Toggle date display"), \
379 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
380 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
381 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
382 REQ_(STATUS_UPDATE, "Update file status"), \
383 REQ_(STATUS_CHECKOUT, "Checkout file"), \
384 REQ_(STATUS_MERGE, "Merge file using external tool"), \
385 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
386 REQ_(TREE_PARENT, "Switch to parent directory in tree view"), \
387 REQ_(EDIT, "Open in editor"), \
388 REQ_(NONE, "Do nothing")
391 /* User action requests. */
393 #define REQ_GROUP(help)
394 #define REQ_(req, help) REQ_##req
396 /* Offset all requests to avoid conflicts with ncurses getch values. */
397 REQ_OFFSET = KEY_MAX + 1,
404 struct request_info {
405 enum request request;
411 static struct request_info req_info[] = {
412 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
413 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
420 get_request(const char *name)
422 int namelen = strlen(name);
425 for (i = 0; i < ARRAY_SIZE(req_info); i++)
426 if (req_info[i].namelen == namelen &&
427 !string_enum_compare(req_info[i].name, name, namelen))
428 return req_info[i].request;
438 static const char usage[] =
439 "tig " TIG_VERSION " (" __DATE__ ")\n"
441 "Usage: tig [options] [revs] [--] [paths]\n"
442 " or: tig show [options] [revs] [--] [paths]\n"
443 " or: tig blame [rev] path\n"
445 " or: tig < [git command output]\n"
448 " -v, --version Show version and exit\n"
449 " -h, --help Show help message and exit";
451 /* Option and state variables. */
452 static bool opt_date = TRUE;
453 static bool opt_author = TRUE;
454 static bool opt_line_number = FALSE;
455 static bool opt_line_graphics = TRUE;
456 static bool opt_rev_graph = FALSE;
457 static bool opt_show_refs = TRUE;
458 static int opt_num_interval = NUMBER_INTERVAL;
459 static int opt_tab_size = TAB_SIZE;
460 static int opt_author_cols = AUTHOR_COLS-1;
461 static char opt_cmd[SIZEOF_STR] = "";
462 static char opt_path[SIZEOF_STR] = "";
463 static char opt_file[SIZEOF_STR] = "";
464 static char opt_ref[SIZEOF_REF] = "";
465 static char opt_head[SIZEOF_REF] = "";
466 static char opt_remote[SIZEOF_REF] = "";
467 static bool opt_no_head = TRUE;
468 static FILE *opt_pipe = NULL;
469 static char opt_encoding[20] = "UTF-8";
470 static bool opt_utf8 = TRUE;
471 static char opt_codeset[20] = "UTF-8";
472 static iconv_t opt_iconv = ICONV_NONE;
473 static char opt_search[SIZEOF_STR] = "";
474 static char opt_cdup[SIZEOF_STR] = "";
475 static char opt_git_dir[SIZEOF_STR] = "";
476 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
477 static char opt_editor[SIZEOF_STR] = "";
480 parse_options(int argc, char *argv[])
482 enum request request = REQ_VIEW_MAIN;
485 bool seen_dashdash = FALSE;
488 if (!isatty(STDIN_FILENO)) {
490 return REQ_VIEW_PAGER;
494 return REQ_VIEW_MAIN;
496 subcommand = argv[1];
497 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
498 if (!strcmp(subcommand, "-S"))
499 warn("`-S' has been deprecated; use `tig status' instead");
501 warn("ignoring arguments after `%s'", subcommand);
502 return REQ_VIEW_STATUS;
504 } else if (!strcmp(subcommand, "blame")) {
505 if (argc <= 2 || argc > 4)
506 die("invalid number of options to blame\n\n%s", usage);
510 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
514 string_ncopy(opt_file, argv[i], strlen(argv[i]));
515 return REQ_VIEW_BLAME;
517 } else if (!strcmp(subcommand, "show")) {
518 request = REQ_VIEW_DIFF;
520 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
521 request = subcommand[0] == 'l' ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
522 warn("`tig %s' has been deprecated", subcommand);
529 /* XXX: This is vulnerable to the user overriding
530 * options required for the main view parser. */
531 string_copy(opt_cmd, TIG_MAIN_BASE);
533 string_format(opt_cmd, "git %s", subcommand);
535 buf_size = strlen(opt_cmd);
537 for (i = 1 + !!subcommand; i < argc; i++) {
540 if (seen_dashdash || !strcmp(opt, "--")) {
541 seen_dashdash = TRUE;
543 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
544 printf("tig version %s\n", TIG_VERSION);
547 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
548 printf("%s\n", usage);
552 opt_cmd[buf_size++] = ' ';
553 buf_size = sq_quote(opt_cmd, buf_size, opt);
554 if (buf_size >= sizeof(opt_cmd))
555 die("command too long");
558 opt_cmd[buf_size] = 0;
565 * Line-oriented content detection.
569 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
570 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
571 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
572 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
573 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
574 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
575 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
576 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
577 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
578 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
579 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
580 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
581 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
582 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
583 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
584 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
585 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
586 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
587 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
588 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
589 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
590 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
591 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
592 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
593 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
594 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
595 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
596 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
597 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
598 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
599 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
600 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
601 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
602 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
603 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
604 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
605 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
606 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
607 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
608 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
609 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
610 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
611 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
612 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
613 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
614 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
615 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
616 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
617 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
618 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
619 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
620 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
621 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
622 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
625 #define LINE(type, line, fg, bg, attr) \
633 const char *name; /* Option name. */
634 int namelen; /* Size of option name. */
635 const char *line; /* The start of line to match. */
636 int linelen; /* Size of string to match. */
637 int fg, bg, attr; /* Color and text attributes for the lines. */
640 static struct line_info line_info[] = {
641 #define LINE(type, line, fg, bg, attr) \
642 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
647 static enum line_type
648 get_line_type(const char *line)
650 int linelen = strlen(line);
653 for (type = 0; type < ARRAY_SIZE(line_info); type++)
654 /* Case insensitive search matches Signed-off-by lines better. */
655 if (linelen >= line_info[type].linelen &&
656 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
663 get_line_attr(enum line_type type)
665 assert(type < ARRAY_SIZE(line_info));
666 return COLOR_PAIR(type) | line_info[type].attr;
669 static struct line_info *
670 get_line_info(const char *name)
672 size_t namelen = strlen(name);
675 for (type = 0; type < ARRAY_SIZE(line_info); type++)
676 if (namelen == line_info[type].namelen &&
677 !string_enum_compare(line_info[type].name, name, namelen))
678 return &line_info[type];
686 int default_bg = line_info[LINE_DEFAULT].bg;
687 int default_fg = line_info[LINE_DEFAULT].fg;
692 if (assume_default_colors(default_fg, default_bg) == ERR) {
693 default_bg = COLOR_BLACK;
694 default_fg = COLOR_WHITE;
697 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
698 struct line_info *info = &line_info[type];
699 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
700 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
702 init_pair(type, fg, bg);
710 unsigned int selected:1;
711 unsigned int dirty:1;
713 void *data; /* User data */
723 enum request request;
724 struct keybinding *next;
727 static struct keybinding default_keybindings[] = {
729 { 'm', REQ_VIEW_MAIN },
730 { 'd', REQ_VIEW_DIFF },
731 { 'l', REQ_VIEW_LOG },
732 { 't', REQ_VIEW_TREE },
733 { 'f', REQ_VIEW_BLOB },
734 { 'B', REQ_VIEW_BLAME },
735 { 'p', REQ_VIEW_PAGER },
736 { 'h', REQ_VIEW_HELP },
737 { 'S', REQ_VIEW_STATUS },
738 { 'c', REQ_VIEW_STAGE },
740 /* View manipulation */
741 { 'q', REQ_VIEW_CLOSE },
742 { KEY_TAB, REQ_VIEW_NEXT },
743 { KEY_RETURN, REQ_ENTER },
744 { KEY_UP, REQ_PREVIOUS },
745 { KEY_DOWN, REQ_NEXT },
746 { 'R', REQ_REFRESH },
747 { KEY_F(5), REQ_REFRESH },
748 { 'O', REQ_MAXIMIZE },
750 /* Cursor navigation */
751 { 'k', REQ_MOVE_UP },
752 { 'j', REQ_MOVE_DOWN },
753 { KEY_HOME, REQ_MOVE_FIRST_LINE },
754 { KEY_END, REQ_MOVE_LAST_LINE },
755 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
756 { ' ', REQ_MOVE_PAGE_DOWN },
757 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
758 { 'b', REQ_MOVE_PAGE_UP },
759 { '-', REQ_MOVE_PAGE_UP },
762 { KEY_IC, REQ_SCROLL_LINE_UP },
763 { KEY_DC, REQ_SCROLL_LINE_DOWN },
764 { 'w', REQ_SCROLL_PAGE_UP },
765 { 's', REQ_SCROLL_PAGE_DOWN },
769 { '?', REQ_SEARCH_BACK },
770 { 'n', REQ_FIND_NEXT },
771 { 'N', REQ_FIND_PREV },
775 { 'z', REQ_STOP_LOADING },
776 { 'v', REQ_SHOW_VERSION },
777 { 'r', REQ_SCREEN_REDRAW },
778 { '.', REQ_TOGGLE_LINENO },
779 { 'D', REQ_TOGGLE_DATE },
780 { 'A', REQ_TOGGLE_AUTHOR },
781 { 'g', REQ_TOGGLE_REV_GRAPH },
782 { 'F', REQ_TOGGLE_REFS },
784 { 'u', REQ_STATUS_UPDATE },
785 { '!', REQ_STATUS_CHECKOUT },
786 { 'M', REQ_STATUS_MERGE },
787 { '@', REQ_STAGE_NEXT },
788 { ',', REQ_TREE_PARENT },
791 /* Using the ncurses SIGWINCH handler. */
792 { KEY_RESIZE, REQ_SCREEN_RESIZE },
795 #define KEYMAP_INFO \
809 #define KEYMAP_(name) KEYMAP_##name
814 static struct int_map keymap_table[] = {
815 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
820 #define set_keymap(map, name) \
821 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
823 static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)];
826 add_keybinding(enum keymap keymap, enum request request, int key)
828 struct keybinding *keybinding;
830 keybinding = calloc(1, sizeof(*keybinding));
832 die("Failed to allocate keybinding");
834 keybinding->alias = key;
835 keybinding->request = request;
836 keybinding->next = keybindings[keymap];
837 keybindings[keymap] = keybinding;
840 /* Looks for a key binding first in the given map, then in the generic map, and
841 * lastly in the default keybindings. */
843 get_keybinding(enum keymap keymap, int key)
845 struct keybinding *kbd;
848 for (kbd = keybindings[keymap]; kbd; kbd = kbd->next)
849 if (kbd->alias == key)
852 for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next)
853 if (kbd->alias == key)
856 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
857 if (default_keybindings[i].alias == key)
858 return default_keybindings[i].request;
860 return (enum request) key;
869 static struct key key_table[] = {
870 { "Enter", KEY_RETURN },
872 { "Backspace", KEY_BACKSPACE },
874 { "Escape", KEY_ESC },
875 { "Left", KEY_LEFT },
876 { "Right", KEY_RIGHT },
878 { "Down", KEY_DOWN },
879 { "Insert", KEY_IC },
880 { "Delete", KEY_DC },
882 { "Home", KEY_HOME },
884 { "PageUp", KEY_PPAGE },
885 { "PageDown", KEY_NPAGE },
895 { "F10", KEY_F(10) },
896 { "F11", KEY_F(11) },
897 { "F12", KEY_F(12) },
901 get_key_value(const char *name)
905 for (i = 0; i < ARRAY_SIZE(key_table); i++)
906 if (!strcasecmp(key_table[i].name, name))
907 return key_table[i].value;
909 if (strlen(name) == 1 && isprint(*name))
916 get_key_name(int key_value)
918 static char key_char[] = "'X'";
922 for (key = 0; key < ARRAY_SIZE(key_table); key++)
923 if (key_table[key].value == key_value)
924 seq = key_table[key].name;
928 isprint(key_value)) {
929 key_char[1] = (char) key_value;
933 return seq ? seq : "'?'";
937 get_key(enum request request)
939 static char buf[BUFSIZ];
946 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
947 struct keybinding *keybinding = &default_keybindings[i];
949 if (keybinding->request != request)
952 if (!string_format_from(buf, &pos, "%s%s", sep,
953 get_key_name(keybinding->alias)))
954 return "Too many keybindings!";
964 char cmd[SIZEOF_STR];
967 static struct run_request *run_request;
968 static size_t run_requests;
971 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
973 struct run_request *req;
974 char cmd[SIZEOF_STR];
977 for (bufpos = 0; argc > 0; argc--, argv++)
978 if (!string_format_from(cmd, &bufpos, "%s ", *argv))
981 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
986 req = &run_request[run_requests++];
987 string_copy(req->cmd, cmd);
988 req->keymap = keymap;
991 return REQ_NONE + run_requests;
994 static struct run_request *
995 get_run_request(enum request request)
997 if (request <= REQ_NONE)
999 return &run_request[request - REQ_NONE - 1];
1003 add_builtin_run_requests(void)
1008 const char *argv[1];
1010 { KEYMAP_MAIN, 'C', { "git cherry-pick %(commit)" } },
1011 { KEYMAP_GENERIC, 'G', { "git gc" } },
1015 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1018 req = add_run_request(reqs[i].keymap, reqs[i].key, 1, reqs[i].argv);
1019 if (req != REQ_NONE)
1020 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1025 * User config file handling.
1028 static struct int_map color_map[] = {
1029 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1041 #define set_color(color, name) \
1042 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1044 static struct int_map attr_map[] = {
1045 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1052 ATTR_MAP(UNDERLINE),
1055 #define set_attribute(attr, name) \
1056 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1058 static int config_lineno;
1059 static bool config_errors;
1060 static char *config_msg;
1062 /* Wants: object fgcolor bgcolor [attr] */
1064 option_color_command(int argc, const char *argv[])
1066 struct line_info *info;
1068 if (argc != 3 && argc != 4) {
1069 config_msg = "Wrong number of arguments given to color command";
1073 info = get_line_info(argv[0]);
1075 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1076 info = get_line_info("delimiter");
1078 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1079 info = get_line_info("date");
1082 config_msg = "Unknown color name";
1087 if (set_color(&info->fg, argv[1]) == ERR ||
1088 set_color(&info->bg, argv[2]) == ERR) {
1089 config_msg = "Unknown color";
1093 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1094 config_msg = "Unknown attribute";
1101 static bool parse_bool(const char *s)
1103 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1104 !strcmp(s, "yes")) ? TRUE : FALSE;
1108 parse_int(const char *s, int default_value, int min, int max)
1110 int value = atoi(s);
1112 return (value < min || value > max) ? default_value : value;
1115 /* Wants: name = value */
1117 option_set_command(int argc, const char *argv[])
1120 config_msg = "Wrong number of arguments given to set command";
1124 if (strcmp(argv[1], "=")) {
1125 config_msg = "No value assigned";
1129 if (!strcmp(argv[0], "show-author")) {
1130 opt_author = parse_bool(argv[2]);
1134 if (!strcmp(argv[0], "show-date")) {
1135 opt_date = parse_bool(argv[2]);
1139 if (!strcmp(argv[0], "show-rev-graph")) {
1140 opt_rev_graph = parse_bool(argv[2]);
1144 if (!strcmp(argv[0], "show-refs")) {
1145 opt_show_refs = parse_bool(argv[2]);
1149 if (!strcmp(argv[0], "show-line-numbers")) {
1150 opt_line_number = parse_bool(argv[2]);
1154 if (!strcmp(argv[0], "line-graphics")) {
1155 opt_line_graphics = parse_bool(argv[2]);
1159 if (!strcmp(argv[0], "line-number-interval")) {
1160 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1164 if (!strcmp(argv[0], "author-width")) {
1165 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1169 if (!strcmp(argv[0], "tab-size")) {
1170 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1174 if (!strcmp(argv[0], "commit-encoding")) {
1175 const char *arg = argv[2];
1176 int arglen = strlen(arg);
1181 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1182 config_msg = "Unmatched quotation";
1185 arg += 1; arglen -= 2;
1187 string_ncopy(opt_encoding, arg, strlen(arg));
1192 config_msg = "Unknown variable name";
1196 /* Wants: mode request key */
1198 option_bind_command(int argc, const char *argv[])
1200 enum request request;
1205 config_msg = "Wrong number of arguments given to bind command";
1209 if (set_keymap(&keymap, argv[0]) == ERR) {
1210 config_msg = "Unknown key map";
1214 key = get_key_value(argv[1]);
1216 config_msg = "Unknown key";
1220 request = get_request(argv[2]);
1221 if (request == REQ_NONE) {
1222 const char *obsolete[] = { "cherry-pick" };
1223 size_t namelen = strlen(argv[2]);
1226 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1227 if (namelen == strlen(obsolete[i]) &&
1228 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1229 config_msg = "Obsolete request name";
1234 if (request == REQ_NONE && *argv[2]++ == '!')
1235 request = add_run_request(keymap, key, argc - 2, argv + 2);
1236 if (request == REQ_NONE) {
1237 config_msg = "Unknown request name";
1241 add_keybinding(keymap, request, key);
1247 set_option(char *opt, char *value)
1249 const char *argv[SIZEOF_ARG];
1254 while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) {
1255 argv[argc++] = value;
1258 /* Nothing more to tokenize or last available token. */
1259 if (!*value || argc >= ARRAY_SIZE(argv))
1263 while (isspace(*value))
1267 if (!strcmp(opt, "color"))
1268 return option_color_command(argc, argv);
1270 if (!strcmp(opt, "set"))
1271 return option_set_command(argc, argv);
1273 if (!strcmp(opt, "bind"))
1274 return option_bind_command(argc, argv);
1276 config_msg = "Unknown option command";
1281 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1286 config_msg = "Internal error";
1288 /* Check for comment markers, since read_properties() will
1289 * only ensure opt and value are split at first " \t". */
1290 optlen = strcspn(opt, "#");
1294 if (opt[optlen] != 0) {
1295 config_msg = "No option value";
1299 /* Look for comment endings in the value. */
1300 size_t len = strcspn(value, "#");
1302 if (len < valuelen) {
1304 value[valuelen] = 0;
1307 status = set_option(opt, value);
1310 if (status == ERR) {
1311 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1312 config_lineno, (int) optlen, opt, config_msg);
1313 config_errors = TRUE;
1316 /* Always keep going if errors are encountered. */
1321 load_option_file(const char *path)
1325 /* It's ok that the file doesn't exist. */
1326 file = fopen(path, "r");
1331 config_errors = FALSE;
1333 if (read_properties(file, " \t", read_option) == ERR ||
1334 config_errors == TRUE)
1335 fprintf(stderr, "Errors while loading %s.\n", path);
1341 char *home = getenv("HOME");
1342 char *tigrc_user = getenv("TIGRC_USER");
1343 char *tigrc_system = getenv("TIGRC_SYSTEM");
1344 char buf[SIZEOF_STR];
1346 add_builtin_run_requests();
1348 if (!tigrc_system) {
1349 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1353 load_option_file(tigrc_system);
1356 if (!home || !string_format(buf, "%s/.tigrc", home))
1360 load_option_file(tigrc_user);
1373 /* The display array of active views and the index of the current view. */
1374 static struct view *display[2];
1375 static unsigned int current_view;
1377 /* Reading from the prompt? */
1378 static bool input_mode = FALSE;
1380 #define foreach_displayed_view(view, i) \
1381 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1383 #define displayed_views() (display[1] != NULL ? 2 : 1)
1385 /* Current head and commit ID */
1386 static char ref_blob[SIZEOF_REF] = "";
1387 static char ref_commit[SIZEOF_REF] = "HEAD";
1388 static char ref_head[SIZEOF_REF] = "HEAD";
1391 const char *name; /* View name */
1392 const char *cmd_fmt; /* Default command line format */
1393 const char *cmd_env; /* Command line set via environment */
1394 const char *id; /* Points to either of ref_{head,commit,blob} */
1396 struct view_ops *ops; /* View operations */
1398 enum keymap keymap; /* What keymap does this view have */
1399 bool git_dir; /* Whether the view requires a git directory. */
1401 char cmd[SIZEOF_STR]; /* Command buffer */
1402 char ref[SIZEOF_REF]; /* Hovered commit reference */
1403 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1405 int height, width; /* The width and height of the main window */
1406 WINDOW *win; /* The main window */
1407 WINDOW *title; /* The title window living below the main window */
1410 unsigned long offset; /* Offset of the window top */
1411 unsigned long lineno; /* Current line number */
1414 char grep[SIZEOF_STR]; /* Search string */
1415 regex_t *regex; /* Pre-compiled regex */
1417 /* If non-NULL, points to the view that opened this view. If this view
1418 * is closed tig will switch back to the parent view. */
1419 struct view *parent;
1422 size_t lines; /* Total number of lines */
1423 struct line *line; /* Line index */
1424 size_t line_alloc; /* Total number of allocated lines */
1425 size_t line_size; /* Total number of used lines */
1426 unsigned int digits; /* Number of digits in the lines member. */
1429 struct line *curline; /* Line currently being drawn. */
1430 enum line_type curtype; /* Attribute currently used for drawing. */
1431 unsigned long col; /* Column when drawing. */
1439 /* What type of content being displayed. Used in the title bar. */
1441 /* Open and reads in all view content. */
1442 bool (*open)(struct view *view);
1443 /* Read one line; updates view->line. */
1444 bool (*read)(struct view *view, char *data);
1445 /* Draw one line; @lineno must be < view->height. */
1446 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1447 /* Depending on view handle a special requests. */
1448 enum request (*request)(struct view *view, enum request request, struct line *line);
1449 /* Search for regex in a line. */
1450 bool (*grep)(struct view *view, struct line *line);
1452 void (*select)(struct view *view, struct line *line);
1455 static struct view_ops pager_ops;
1456 static struct view_ops main_ops;
1457 static struct view_ops tree_ops;
1458 static struct view_ops blob_ops;
1459 static struct view_ops blame_ops;
1460 static struct view_ops help_ops;
1461 static struct view_ops status_ops;
1462 static struct view_ops stage_ops;
1464 #define VIEW_STR(name, cmd, env, ref, ops, map, git) \
1465 { name, cmd, #env, ref, ops, map, git }
1467 #define VIEW_(id, name, ops, git, ref) \
1468 VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1471 static struct view views[] = {
1472 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1473 VIEW_(DIFF, "diff", &pager_ops, TRUE, ref_commit),
1474 VIEW_(LOG, "log", &pager_ops, TRUE, ref_head),
1475 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1476 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1477 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1478 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1479 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1480 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1481 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1484 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1485 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1487 #define foreach_view(view, i) \
1488 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1490 #define view_is_displayed(view) \
1491 (view == display[0] || view == display[1])
1498 static int line_graphics[] = {
1499 /* LINE_GRAPHIC_VLINE: */ '|'
1503 set_view_attr(struct view *view, enum line_type type)
1505 if (!view->curline->selected && view->curtype != type) {
1506 wattrset(view->win, get_line_attr(type));
1507 wchgat(view->win, -1, 0, type, NULL);
1508 view->curtype = type;
1513 draw_chars(struct view *view, enum line_type type, const char *string,
1514 int max_len, bool use_tilde)
1518 int trimmed = FALSE;
1524 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1526 col = len = strlen(string);
1527 if (len > max_len) {
1531 col = len = max_len;
1536 set_view_attr(view, type);
1537 waddnstr(view->win, string, len);
1538 if (trimmed && use_tilde) {
1539 set_view_attr(view, LINE_DELIMITER);
1540 waddch(view->win, '~');
1548 draw_space(struct view *view, enum line_type type, int max, int spaces)
1550 static char space[] = " ";
1553 spaces = MIN(max, spaces);
1555 while (spaces > 0) {
1556 int len = MIN(spaces, sizeof(space) - 1);
1558 col += draw_chars(view, type, space, spaces, FALSE);
1566 draw_lineno(struct view *view, unsigned int lineno)
1569 int digits3 = view->digits < 3 ? 3 : view->digits;
1570 int max_number = MIN(digits3, STRING_SIZE(number));
1571 int max = view->width - view->col;
1574 if (max < max_number)
1577 lineno += view->offset + 1;
1578 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1579 static char fmt[] = "%1ld";
1581 if (view->digits <= 9)
1582 fmt[1] = '0' + digits3;
1584 if (!string_format(number, fmt, lineno))
1586 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1588 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1592 set_view_attr(view, LINE_DEFAULT);
1593 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1598 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1601 return view->width - view->col <= 0;
1605 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1607 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1608 return view->width - view->col <= 0;
1612 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1614 int max = view->width - view->col;
1620 set_view_attr(view, type);
1621 /* Using waddch() instead of waddnstr() ensures that
1622 * they'll be rendered correctly for the cursor line. */
1623 for (i = 0; i < size; i++)
1624 waddch(view->win, graphic[i]);
1628 waddch(view->win, ' ');
1632 return view->width - view->col <= 0;
1636 draw_field(struct view *view, enum line_type type, char *text, int len, bool trim)
1638 int max = MIN(view->width - view->col, len);
1642 col = draw_chars(view, type, text, max - 1, trim);
1644 col = draw_space(view, type, max - 1, max - 1);
1646 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1647 return view->width - view->col <= 0;
1651 draw_date(struct view *view, struct tm *time)
1653 char buf[DATE_COLS];
1658 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1659 date = timelen ? buf : NULL;
1661 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1665 draw_view_line(struct view *view, unsigned int lineno)
1668 bool selected = (view->offset + lineno == view->lineno);
1671 assert(view_is_displayed(view));
1673 if (view->offset + lineno >= view->lines)
1676 line = &view->line[view->offset + lineno];
1678 wmove(view->win, lineno, 0);
1680 view->curline = line;
1681 view->curtype = LINE_NONE;
1682 line->selected = FALSE;
1685 set_view_attr(view, LINE_CURSOR);
1686 line->selected = TRUE;
1687 view->ops->select(view, line);
1688 } else if (line->selected) {
1689 wclrtoeol(view->win);
1692 scrollok(view->win, FALSE);
1693 draw_ok = view->ops->draw(view, line, lineno);
1694 scrollok(view->win, TRUE);
1700 redraw_view_dirty(struct view *view)
1705 for (lineno = 0; lineno < view->height; lineno++) {
1706 struct line *line = &view->line[view->offset + lineno];
1712 if (!draw_view_line(view, lineno))
1718 redrawwin(view->win);
1720 wnoutrefresh(view->win);
1722 wrefresh(view->win);
1726 redraw_view_from(struct view *view, int lineno)
1728 assert(0 <= lineno && lineno < view->height);
1730 for (; lineno < view->height; lineno++) {
1731 if (!draw_view_line(view, lineno))
1735 redrawwin(view->win);
1737 wnoutrefresh(view->win);
1739 wrefresh(view->win);
1743 redraw_view(struct view *view)
1746 redraw_view_from(view, 0);
1751 update_view_title(struct view *view)
1753 char buf[SIZEOF_STR];
1754 char state[SIZEOF_STR];
1755 size_t bufpos = 0, statelen = 0;
1757 assert(view_is_displayed(view));
1759 if (view != VIEW(REQ_VIEW_STATUS) && (view->lines || view->pipe)) {
1760 unsigned int view_lines = view->offset + view->height;
1761 unsigned int lines = view->lines
1762 ? MIN(view_lines, view->lines) * 100 / view->lines
1765 string_format_from(state, &statelen, "- %s %d of %d (%d%%)",
1772 time_t secs = time(NULL) - view->start_time;
1774 /* Three git seconds are a long time ... */
1776 string_format_from(state, &statelen, " %lds", secs);
1780 string_format_from(buf, &bufpos, "[%s]", view->name);
1781 if (*view->ref && bufpos < view->width) {
1782 size_t refsize = strlen(view->ref);
1783 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
1785 if (minsize < view->width)
1786 refsize = view->width - minsize + 7;
1787 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
1790 if (statelen && bufpos < view->width) {
1791 string_format_from(buf, &bufpos, " %s", state);
1794 if (view == display[current_view])
1795 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
1797 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
1799 mvwaddnstr(view->title, 0, 0, buf, bufpos);
1800 wclrtoeol(view->title);
1801 wmove(view->title, 0, view->width - 1);
1804 wnoutrefresh(view->title);
1806 wrefresh(view->title);
1810 resize_display(void)
1813 struct view *base = display[0];
1814 struct view *view = display[1] ? display[1] : display[0];
1816 /* Setup window dimensions */
1818 getmaxyx(stdscr, base->height, base->width);
1820 /* Make room for the status window. */
1824 /* Horizontal split. */
1825 view->width = base->width;
1826 view->height = SCALE_SPLIT_VIEW(base->height);
1827 base->height -= view->height;
1829 /* Make room for the title bar. */
1833 /* Make room for the title bar. */
1838 foreach_displayed_view (view, i) {
1840 view->win = newwin(view->height, 0, offset, 0);
1842 die("Failed to create %s view", view->name);
1844 scrollok(view->win, TRUE);
1846 view->title = newwin(1, 0, offset + view->height, 0);
1848 die("Failed to create title window");
1851 wresize(view->win, view->height, view->width);
1852 mvwin(view->win, offset, 0);
1853 mvwin(view->title, offset + view->height, 0);
1856 offset += view->height + 1;
1861 redraw_display(void)
1866 foreach_displayed_view (view, i) {
1868 update_view_title(view);
1873 update_display_cursor(struct view *view)
1875 /* Move the cursor to the right-most column of the cursor line.
1877 * XXX: This could turn out to be a bit expensive, but it ensures that
1878 * the cursor does not jump around. */
1880 wmove(view->win, view->lineno - view->offset, view->width - 1);
1881 wrefresh(view->win);
1889 /* Scrolling backend */
1891 do_scroll_view(struct view *view, int lines)
1893 bool redraw_current_line = FALSE;
1895 /* The rendering expects the new offset. */
1896 view->offset += lines;
1898 assert(0 <= view->offset && view->offset < view->lines);
1901 /* Move current line into the view. */
1902 if (view->lineno < view->offset) {
1903 view->lineno = view->offset;
1904 redraw_current_line = TRUE;
1905 } else if (view->lineno >= view->offset + view->height) {
1906 view->lineno = view->offset + view->height - 1;
1907 redraw_current_line = TRUE;
1910 assert(view->offset <= view->lineno && view->lineno < view->lines);
1912 /* Redraw the whole screen if scrolling is pointless. */
1913 if (view->height < ABS(lines)) {
1917 int line = lines > 0 ? view->height - lines : 0;
1918 int end = line + ABS(lines);
1920 wscrl(view->win, lines);
1922 for (; line < end; line++) {
1923 if (!draw_view_line(view, line))
1927 if (redraw_current_line)
1928 draw_view_line(view, view->lineno - view->offset);
1931 redrawwin(view->win);
1932 wrefresh(view->win);
1936 /* Scroll frontend */
1938 scroll_view(struct view *view, enum request request)
1942 assert(view_is_displayed(view));
1945 case REQ_SCROLL_PAGE_DOWN:
1946 lines = view->height;
1947 case REQ_SCROLL_LINE_DOWN:
1948 if (view->offset + lines > view->lines)
1949 lines = view->lines - view->offset;
1951 if (lines == 0 || view->offset + view->height >= view->lines) {
1952 report("Cannot scroll beyond the last line");
1957 case REQ_SCROLL_PAGE_UP:
1958 lines = view->height;
1959 case REQ_SCROLL_LINE_UP:
1960 if (lines > view->offset)
1961 lines = view->offset;
1964 report("Cannot scroll beyond the first line");
1972 die("request %d not handled in switch", request);
1975 do_scroll_view(view, lines);
1980 move_view(struct view *view, enum request request)
1982 int scroll_steps = 0;
1986 case REQ_MOVE_FIRST_LINE:
1987 steps = -view->lineno;
1990 case REQ_MOVE_LAST_LINE:
1991 steps = view->lines - view->lineno - 1;
1994 case REQ_MOVE_PAGE_UP:
1995 steps = view->height > view->lineno
1996 ? -view->lineno : -view->height;
1999 case REQ_MOVE_PAGE_DOWN:
2000 steps = view->lineno + view->height >= view->lines
2001 ? view->lines - view->lineno - 1 : view->height;
2013 die("request %d not handled in switch", request);
2016 if (steps <= 0 && view->lineno == 0) {
2017 report("Cannot move beyond the first line");
2020 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2021 report("Cannot move beyond the last line");
2025 /* Move the current line */
2026 view->lineno += steps;
2027 assert(0 <= view->lineno && view->lineno < view->lines);
2029 /* Check whether the view needs to be scrolled */
2030 if (view->lineno < view->offset ||
2031 view->lineno >= view->offset + view->height) {
2032 scroll_steps = steps;
2033 if (steps < 0 && -steps > view->offset) {
2034 scroll_steps = -view->offset;
2036 } else if (steps > 0) {
2037 if (view->lineno == view->lines - 1 &&
2038 view->lines > view->height) {
2039 scroll_steps = view->lines - view->offset - 1;
2040 if (scroll_steps >= view->height)
2041 scroll_steps -= view->height - 1;
2046 if (!view_is_displayed(view)) {
2047 view->offset += scroll_steps;
2048 assert(0 <= view->offset && view->offset < view->lines);
2049 view->ops->select(view, &view->line[view->lineno]);
2053 /* Repaint the old "current" line if we be scrolling */
2054 if (ABS(steps) < view->height)
2055 draw_view_line(view, view->lineno - steps - view->offset);
2058 do_scroll_view(view, scroll_steps);
2062 /* Draw the current line */
2063 draw_view_line(view, view->lineno - view->offset);
2065 redrawwin(view->win);
2066 wrefresh(view->win);
2075 static void search_view(struct view *view, enum request request);
2078 find_next_line(struct view *view, unsigned long lineno, struct line *line)
2080 assert(view_is_displayed(view));
2082 if (!view->ops->grep(view, line))
2085 if (lineno - view->offset >= view->height) {
2086 view->offset = lineno;
2087 view->lineno = lineno;
2091 unsigned long old_lineno = view->lineno - view->offset;
2093 view->lineno = lineno;
2094 draw_view_line(view, old_lineno);
2096 draw_view_line(view, view->lineno - view->offset);
2097 redrawwin(view->win);
2098 wrefresh(view->win);
2101 report("Line %ld matches '%s'", lineno + 1, view->grep);
2106 find_next(struct view *view, enum request request)
2108 unsigned long lineno = view->lineno;
2113 report("No previous search");
2115 search_view(view, request);
2125 case REQ_SEARCH_BACK:
2134 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2135 lineno += direction;
2137 /* Note, lineno is unsigned long so will wrap around in which case it
2138 * will become bigger than view->lines. */
2139 for (; lineno < view->lines; lineno += direction) {
2140 struct line *line = &view->line[lineno];
2142 if (find_next_line(view, lineno, line))
2146 report("No match found for '%s'", view->grep);
2150 search_view(struct view *view, enum request request)
2155 regfree(view->regex);
2158 view->regex = calloc(1, sizeof(*view->regex));
2163 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2164 if (regex_err != 0) {
2165 char buf[SIZEOF_STR] = "unknown error";
2167 regerror(regex_err, view->regex, buf, sizeof(buf));
2168 report("Search failed: %s", buf);
2172 string_copy(view->grep, opt_search);
2174 find_next(view, request);
2178 * Incremental updating
2182 end_update(struct view *view, bool force)
2186 while (!view->ops->read(view, NULL))
2189 set_nonblocking_input(FALSE);
2190 if (view->pipe == stdin)
2198 begin_update(struct view *view, bool refresh)
2201 string_copy(view->cmd, opt_cmd);
2203 /* When running random commands, initially show the
2204 * command in the title. However, it maybe later be
2205 * overwritten if a commit line is selected. */
2206 if (view == VIEW(REQ_VIEW_PAGER))
2207 string_copy(view->ref, view->cmd);
2211 } else if (view == VIEW(REQ_VIEW_TREE)) {
2212 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2213 char path[SIZEOF_STR];
2215 if (strcmp(view->vid, view->id))
2216 opt_path[0] = path[0] = 0;
2217 else if (sq_quote(path, 0, opt_path) >= sizeof(path))
2220 if (!string_format(view->cmd, format, view->id, path))
2223 } else if (!refresh) {
2224 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2225 const char *id = view->id;
2227 if (!string_format(view->cmd, format, id, id, id, id, id))
2230 /* Put the current ref_* value to the view title ref
2231 * member. This is needed by the blob view. Most other
2232 * views sets it automatically after loading because the
2233 * first line is a commit line. */
2234 string_copy_rev(view->ref, view->id);
2237 /* Special case for the pager view. */
2239 view->pipe = opt_pipe;
2242 view->pipe = popen(view->cmd, "r");
2248 set_nonblocking_input(TRUE);
2253 string_copy_rev(view->vid, view->id);
2258 for (i = 0; i < view->lines; i++)
2259 if (view->line[i].data)
2260 free(view->line[i].data);
2266 view->start_time = time(NULL);
2271 #define ITEM_CHUNK_SIZE 256
2273 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2275 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2276 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2278 if (mem == NULL || num_chunks != num_chunks_new) {
2279 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2280 mem = realloc(mem, *size * item_size);
2286 static struct line *
2287 realloc_lines(struct view *view, size_t line_size)
2289 size_t alloc = view->line_alloc;
2290 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2291 sizeof(*view->line));
2297 view->line_alloc = alloc;
2298 view->line_size = line_size;
2303 update_view(struct view *view)
2305 char in_buffer[BUFSIZ];
2306 char out_buffer[BUFSIZ * 2];
2308 /* The number of lines to read. If too low it will cause too much
2309 * redrawing (and possible flickering), if too high responsiveness
2311 unsigned long lines = view->height;
2312 int redraw_from = -1;
2317 /* Only redraw if lines are visible. */
2318 if (view->offset + view->height >= view->lines)
2319 redraw_from = view->lines - view->offset;
2321 /* FIXME: This is probably not perfect for backgrounded views. */
2322 if (!realloc_lines(view, view->lines + lines))
2325 while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) {
2326 size_t linelen = strlen(line);
2329 line[linelen - 1] = 0;
2331 if (opt_iconv != ICONV_NONE) {
2332 ICONV_CONST char *inbuf = line;
2333 size_t inlen = linelen;
2335 char *outbuf = out_buffer;
2336 size_t outlen = sizeof(out_buffer);
2340 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2341 if (ret != (size_t) -1) {
2343 linelen = strlen(out_buffer);
2347 if (!view->ops->read(view, line))
2357 lines = view->lines;
2358 for (digits = 0; lines; digits++)
2361 /* Keep the displayed view in sync with line number scaling. */
2362 if (digits != view->digits) {
2363 view->digits = digits;
2368 if (!view_is_displayed(view))
2371 if (view == VIEW(REQ_VIEW_TREE)) {
2372 /* Clear the view and redraw everything since the tree sorting
2373 * might have rearranged things. */
2376 } else if (redraw_from >= 0) {
2377 /* If this is an incremental update, redraw the previous line
2378 * since for commits some members could have changed when
2379 * loading the main view. */
2380 if (redraw_from > 0)
2383 /* Since revision graph visualization requires knowledge
2384 * about the parent commit, it causes a further one-off
2385 * needed to be redrawn for incremental updates. */
2386 if (redraw_from > 0 && opt_rev_graph)
2389 /* Incrementally draw avoids flickering. */
2390 redraw_view_from(view, redraw_from);
2393 if (view == VIEW(REQ_VIEW_BLAME))
2394 redraw_view_dirty(view);
2396 /* Update the title _after_ the redraw so that if the redraw picks up a
2397 * commit reference in view->ref it'll be available here. */
2398 update_view_title(view);
2401 if (ferror(view->pipe) && errno != 0) {
2402 report("Failed to read: %s", strerror(errno));
2403 end_update(view, TRUE);
2405 } else if (feof(view->pipe)) {
2407 end_update(view, FALSE);
2413 report("Allocation failure");
2414 end_update(view, TRUE);
2418 static struct line *
2419 add_line_data(struct view *view, void *data, enum line_type type)
2421 struct line *line = &view->line[view->lines++];
2423 memset(line, 0, sizeof(*line));
2430 static struct line *
2431 add_line_text(struct view *view, char *data, enum line_type type)
2434 data = strdup(data);
2436 return data ? add_line_data(view, data, type) : NULL;
2445 OPEN_DEFAULT = 0, /* Use default view switching. */
2446 OPEN_SPLIT = 1, /* Split current view. */
2447 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2448 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2449 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2450 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2454 open_view(struct view *prev, enum request request, enum open_flags flags)
2456 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2457 bool split = !!(flags & OPEN_SPLIT);
2458 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH));
2459 bool nomaximize = !!(flags & OPEN_NOMAXIMIZE);
2460 struct view *view = VIEW(request);
2461 int nviews = displayed_views();
2462 struct view *base_view = display[0];
2464 if (view == prev && nviews == 1 && !reload) {
2465 report("Already in %s view", view->name);
2469 if (view->git_dir && !opt_git_dir[0]) {
2470 report("The %s view is disabled in pager view", view->name);
2478 } else if (!nomaximize) {
2479 /* Maximize the current view. */
2480 memset(display, 0, sizeof(display));
2482 display[current_view] = view;
2485 /* Resize the view when switching between split- and full-screen,
2486 * or when switching between two different full-screen views. */
2487 if (nviews != displayed_views() ||
2488 (nviews == 1 && base_view != display[0]))
2492 end_update(view, TRUE);
2494 if (view->ops->open) {
2495 if (!view->ops->open(view)) {
2496 report("Failed to load %s view", view->name);
2500 } else if ((reload || strcmp(view->vid, view->id)) &&
2501 !begin_update(view, flags & OPEN_REFRESH)) {
2502 report("Failed to load %s view", view->name);
2506 if (split && prev->lineno - prev->offset >= prev->height) {
2507 /* Take the title line into account. */
2508 int lines = prev->lineno - prev->offset - prev->height + 1;
2510 /* Scroll the view that was split if the current line is
2511 * outside the new limited view. */
2512 do_scroll_view(prev, lines);
2515 if (prev && view != prev) {
2516 if (split && !backgrounded) {
2517 /* "Blur" the previous view. */
2518 update_view_title(prev);
2521 view->parent = prev;
2524 if (view->pipe && view->lines == 0) {
2525 /* Clear the old view and let the incremental updating refill
2534 /* If the view is backgrounded the above calls to report()
2535 * won't redraw the view title. */
2537 update_view_title(view);
2541 run_confirm(const char *cmd, const char *prompt)
2543 bool confirmation = prompt_yesno(prompt);
2548 return confirmation;
2552 open_external_viewer(const char *cmd)
2554 def_prog_mode(); /* save current tty modes */
2555 endwin(); /* restore original tty modes */
2557 fprintf(stderr, "Press Enter to continue");
2564 open_mergetool(const char *file)
2566 char cmd[SIZEOF_STR];
2567 char file_sq[SIZEOF_STR];
2569 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2570 string_format(cmd, "git mergetool %s", file_sq)) {
2571 open_external_viewer(cmd);
2576 open_editor(bool from_root, const char *file)
2578 char cmd[SIZEOF_STR];
2579 char file_sq[SIZEOF_STR];
2581 char *prefix = from_root ? opt_cdup : "";
2583 editor = getenv("GIT_EDITOR");
2584 if (!editor && *opt_editor)
2585 editor = opt_editor;
2587 editor = getenv("VISUAL");
2589 editor = getenv("EDITOR");
2593 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2594 string_format(cmd, "%s %s%s", editor, prefix, file_sq)) {
2595 open_external_viewer(cmd);
2600 open_run_request(enum request request)
2602 struct run_request *req = get_run_request(request);
2603 char buf[SIZEOF_STR * 2];
2608 report("Unknown run request");
2616 char *next = strstr(cmd, "%(");
2617 int len = next - cmd;
2624 } else if (!strncmp(next, "%(head)", 7)) {
2627 } else if (!strncmp(next, "%(commit)", 9)) {
2630 } else if (!strncmp(next, "%(blob)", 7)) {
2634 report("Unknown replacement in run request: `%s`", req->cmd);
2638 if (!string_format_from(buf, &bufpos, "%.*s%s", len, cmd, value))
2642 next = strchr(next, ')') + 1;
2646 open_external_viewer(buf);
2650 * User request switch noodle
2654 view_driver(struct view *view, enum request request)
2658 if (request == REQ_NONE) {
2663 if (request > REQ_NONE) {
2664 open_run_request(request);
2665 /* FIXME: When all views can refresh always do this. */
2666 if (view == VIEW(REQ_VIEW_STATUS) ||
2667 view == VIEW(REQ_VIEW_MAIN) ||
2668 view == VIEW(REQ_VIEW_STAGE))
2669 request = REQ_REFRESH;
2674 if (view && view->lines) {
2675 request = view->ops->request(view, request, &view->line[view->lineno]);
2676 if (request == REQ_NONE)
2683 case REQ_MOVE_PAGE_UP:
2684 case REQ_MOVE_PAGE_DOWN:
2685 case REQ_MOVE_FIRST_LINE:
2686 case REQ_MOVE_LAST_LINE:
2687 move_view(view, request);
2690 case REQ_SCROLL_LINE_DOWN:
2691 case REQ_SCROLL_LINE_UP:
2692 case REQ_SCROLL_PAGE_DOWN:
2693 case REQ_SCROLL_PAGE_UP:
2694 scroll_view(view, request);
2697 case REQ_VIEW_BLAME:
2699 report("No file chosen, press %s to open tree view",
2700 get_key(REQ_VIEW_TREE));
2703 open_view(view, request, OPEN_DEFAULT);
2708 report("No file chosen, press %s to open tree view",
2709 get_key(REQ_VIEW_TREE));
2712 open_view(view, request, OPEN_DEFAULT);
2715 case REQ_VIEW_PAGER:
2716 if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2717 report("No pager content, press %s to run command from prompt",
2718 get_key(REQ_PROMPT));
2721 open_view(view, request, OPEN_DEFAULT);
2724 case REQ_VIEW_STAGE:
2725 if (!VIEW(REQ_VIEW_STAGE)->lines) {
2726 report("No stage content, press %s to open the status view and choose file",
2727 get_key(REQ_VIEW_STATUS));
2730 open_view(view, request, OPEN_DEFAULT);
2733 case REQ_VIEW_STATUS:
2734 if (opt_is_inside_work_tree == FALSE) {
2735 report("The status view requires a working tree");
2738 open_view(view, request, OPEN_DEFAULT);
2746 open_view(view, request, OPEN_DEFAULT);
2751 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2753 if ((view == VIEW(REQ_VIEW_DIFF) &&
2754 view->parent == VIEW(REQ_VIEW_MAIN)) ||
2755 (view == VIEW(REQ_VIEW_DIFF) &&
2756 view->parent == VIEW(REQ_VIEW_BLAME)) ||
2757 (view == VIEW(REQ_VIEW_STAGE) &&
2758 view->parent == VIEW(REQ_VIEW_STATUS)) ||
2759 (view == VIEW(REQ_VIEW_BLOB) &&
2760 view->parent == VIEW(REQ_VIEW_TREE))) {
2763 view = view->parent;
2764 line = view->lineno;
2765 move_view(view, request);
2766 if (view_is_displayed(view))
2767 update_view_title(view);
2768 if (line != view->lineno)
2769 view->ops->request(view, REQ_ENTER,
2770 &view->line[view->lineno]);
2773 move_view(view, request);
2779 int nviews = displayed_views();
2780 int next_view = (current_view + 1) % nviews;
2782 if (next_view == current_view) {
2783 report("Only one view is displayed");
2787 current_view = next_view;
2788 /* Blur out the title of the previous view. */
2789 update_view_title(view);
2794 report("Refreshing is not yet supported for the %s view", view->name);
2798 if (displayed_views() == 2)
2799 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
2802 case REQ_TOGGLE_LINENO:
2803 opt_line_number = !opt_line_number;
2807 case REQ_TOGGLE_DATE:
2808 opt_date = !opt_date;
2812 case REQ_TOGGLE_AUTHOR:
2813 opt_author = !opt_author;
2817 case REQ_TOGGLE_REV_GRAPH:
2818 opt_rev_graph = !opt_rev_graph;
2822 case REQ_TOGGLE_REFS:
2823 opt_show_refs = !opt_show_refs;
2828 case REQ_SEARCH_BACK:
2829 search_view(view, request);
2834 find_next(view, request);
2837 case REQ_STOP_LOADING:
2838 for (i = 0; i < ARRAY_SIZE(views); i++) {
2841 report("Stopped loading the %s view", view->name),
2842 end_update(view, TRUE);
2846 case REQ_SHOW_VERSION:
2847 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
2850 case REQ_SCREEN_RESIZE:
2853 case REQ_SCREEN_REDRAW:
2858 report("Nothing to edit");
2862 report("Nothing to enter");
2865 case REQ_VIEW_CLOSE:
2866 /* XXX: Mark closed views by letting view->parent point to the
2867 * view itself. Parents to closed view should never be
2870 view->parent->parent != view->parent) {
2871 memset(display, 0, sizeof(display));
2873 display[current_view] = view->parent;
2874 view->parent = view;
2884 /* An unknown key will show most commonly used commands. */
2885 report("Unknown key, press 'h' for help");
2898 pager_draw(struct view *view, struct line *line, unsigned int lineno)
2900 char *text = line->data;
2902 if (opt_line_number && draw_lineno(view, lineno))
2905 draw_text(view, line->type, text, TRUE);
2910 add_describe_ref(char *buf, size_t *bufpos, char *commit_id, const char *sep)
2912 char refbuf[SIZEOF_STR];
2916 if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id))
2919 pipe = popen(refbuf, "r");
2923 if ((ref = fgets(refbuf, sizeof(refbuf), pipe)))
2924 ref = chomp_string(ref);
2930 /* This is the only fatal call, since it can "corrupt" the buffer. */
2931 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
2938 add_pager_refs(struct view *view, struct line *line)
2940 char buf[SIZEOF_STR];
2941 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
2943 size_t bufpos = 0, refpos = 0;
2944 const char *sep = "Refs: ";
2945 bool is_tag = FALSE;
2947 assert(line->type == LINE_COMMIT);
2949 refs = get_refs(commit_id);
2951 if (view == VIEW(REQ_VIEW_DIFF))
2952 goto try_add_describe_ref;
2957 struct ref *ref = refs[refpos];
2958 char *fmt = ref->tag ? "%s[%s]" :
2959 ref->remote ? "%s<%s>" : "%s%s";
2961 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
2966 } while (refs[refpos++]->next);
2968 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
2969 try_add_describe_ref:
2970 /* Add <tag>-g<commit_id> "fake" reference. */
2971 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
2978 if (!realloc_lines(view, view->line_size + 1))
2981 add_line_text(view, buf, LINE_PP_REFS);
2985 pager_read(struct view *view, char *data)
2992 line = add_line_text(view, data, get_line_type(data));
2996 if (line->type == LINE_COMMIT &&
2997 (view == VIEW(REQ_VIEW_DIFF) ||
2998 view == VIEW(REQ_VIEW_LOG)))
2999 add_pager_refs(view, line);
3005 pager_request(struct view *view, enum request request, struct line *line)
3009 if (request != REQ_ENTER)
3012 if (line->type == LINE_COMMIT &&
3013 (view == VIEW(REQ_VIEW_LOG) ||
3014 view == VIEW(REQ_VIEW_PAGER))) {
3015 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3019 /* Always scroll the view even if it was split. That way
3020 * you can use Enter to scroll through the log view and
3021 * split open each commit diff. */
3022 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3024 /* FIXME: A minor workaround. Scrolling the view will call report("")
3025 * but if we are scrolling a non-current view this won't properly
3026 * update the view title. */
3028 update_view_title(view);
3034 pager_grep(struct view *view, struct line *line)
3037 char *text = line->data;
3042 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3049 pager_select(struct view *view, struct line *line)
3051 if (line->type == LINE_COMMIT) {
3052 char *text = (char *)line->data + STRING_SIZE("commit ");
3054 if (view != VIEW(REQ_VIEW_PAGER))
3055 string_copy_rev(view->ref, text);
3056 string_copy_rev(ref_commit, text);
3060 static struct view_ops pager_ops = {
3076 help_open(struct view *view)
3079 int lines = ARRAY_SIZE(req_info) + 2;
3082 if (view->lines > 0)
3085 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3086 if (!req_info[i].request)
3089 lines += run_requests + 1;
3091 view->line = calloc(lines, sizeof(*view->line));
3095 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3097 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3100 if (req_info[i].request == REQ_NONE)
3103 if (!req_info[i].request) {
3104 add_line_text(view, "", LINE_DEFAULT);
3105 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3109 key = get_key(req_info[i].request);
3111 key = "(no key defined)";
3113 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
3116 add_line_text(view, buf, LINE_DEFAULT);
3120 add_line_text(view, "", LINE_DEFAULT);
3121 add_line_text(view, "External commands:", LINE_DEFAULT);
3124 for (i = 0; i < run_requests; i++) {
3125 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3131 key = get_key_name(req->key);
3133 key = "(no key defined)";
3135 if (!string_format(buf, " %-10s %-14s `%s`",
3136 keymap_table[req->keymap].name,
3140 add_line_text(view, buf, LINE_DEFAULT);
3146 static struct view_ops help_ops = {
3161 struct tree_stack_entry {
3162 struct tree_stack_entry *prev; /* Entry below this in the stack */
3163 unsigned long lineno; /* Line number to restore */
3164 char *name; /* Position of name in opt_path */
3167 /* The top of the path stack. */
3168 static struct tree_stack_entry *tree_stack = NULL;
3169 unsigned long tree_lineno = 0;
3172 pop_tree_stack_entry(void)
3174 struct tree_stack_entry *entry = tree_stack;
3176 tree_lineno = entry->lineno;
3178 tree_stack = entry->prev;
3183 push_tree_stack_entry(char *name, unsigned long lineno)
3185 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3186 size_t pathlen = strlen(opt_path);
3191 entry->prev = tree_stack;
3192 entry->name = opt_path + pathlen;
3195 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3196 pop_tree_stack_entry();
3200 /* Move the current line to the first tree entry. */
3202 entry->lineno = lineno;
3205 /* Parse output from git-ls-tree(1):
3207 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3208 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3209 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3210 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3213 #define SIZEOF_TREE_ATTR \
3214 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3216 #define TREE_UP_FORMAT "040000 tree %s\t.."
3219 tree_compare_entry(enum line_type type1, char *name1,
3220 enum line_type type2, char *name2)
3222 if (type1 != type2) {
3223 if (type1 == LINE_TREE_DIR)
3228 return strcmp(name1, name2);
3232 tree_path(struct line *line)
3234 char *path = line->data;
3236 return path + SIZEOF_TREE_ATTR;
3240 tree_read(struct view *view, char *text)
3242 size_t textlen = text ? strlen(text) : 0;
3243 char buf[SIZEOF_STR];
3245 enum line_type type;
3246 bool first_read = view->lines == 0;
3250 if (textlen <= SIZEOF_TREE_ATTR)
3253 type = text[STRING_SIZE("100644 ")] == 't'
3254 ? LINE_TREE_DIR : LINE_TREE_FILE;
3257 /* Add path info line */
3258 if (!string_format(buf, "Directory path /%s", opt_path) ||
3259 !realloc_lines(view, view->line_size + 1) ||
3260 !add_line_text(view, buf, LINE_DEFAULT))
3263 /* Insert "link" to parent directory. */
3265 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
3266 !realloc_lines(view, view->line_size + 1) ||
3267 !add_line_text(view, buf, LINE_TREE_DIR))
3272 /* Strip the path part ... */
3274 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3275 size_t striplen = strlen(opt_path);
3276 char *path = text + SIZEOF_TREE_ATTR;
3278 if (pathlen > striplen)
3279 memmove(path, path + striplen,
3280 pathlen - striplen + 1);
3283 /* Skip "Directory ..." and ".." line. */
3284 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
3285 struct line *line = &view->line[pos];
3286 char *path1 = tree_path(line);
3287 char *path2 = text + SIZEOF_TREE_ATTR;
3288 int cmp = tree_compare_entry(line->type, path1, type, path2);
3293 text = strdup(text);
3297 if (view->lines > pos)
3298 memmove(&view->line[pos + 1], &view->line[pos],
3299 (view->lines - pos) * sizeof(*line));
3301 line = &view->line[pos];
3308 if (!add_line_text(view, text, type))
3311 if (tree_lineno > view->lineno) {
3312 view->lineno = tree_lineno;
3320 tree_request(struct view *view, enum request request, struct line *line)
3322 enum open_flags flags;
3324 if (request == REQ_VIEW_BLAME) {
3325 char *filename = tree_path(line);
3327 if (line->type == LINE_TREE_DIR) {
3328 report("Cannot show blame for directory %s", opt_path);
3332 string_copy(opt_ref, view->vid);
3333 string_format(opt_file, "%s%s", opt_path, filename);
3336 if (request == REQ_TREE_PARENT) {
3339 request = REQ_ENTER;
3340 line = &view->line[1];
3342 /* quit view if at top of tree */
3343 return REQ_VIEW_CLOSE;
3346 if (request != REQ_ENTER)
3349 /* Cleanup the stack if the tree view is at a different tree. */
3350 while (!*opt_path && tree_stack)
3351 pop_tree_stack_entry();
3353 switch (line->type) {
3355 /* Depending on whether it is a subdir or parent (updir?) link
3356 * mangle the path buffer. */
3357 if (line == &view->line[1] && *opt_path) {
3358 pop_tree_stack_entry();
3361 char *basename = tree_path(line);
3363 push_tree_stack_entry(basename, view->lineno);
3366 /* Trees and subtrees share the same ID, so they are not not
3367 * unique like blobs. */
3368 flags = OPEN_RELOAD;
3369 request = REQ_VIEW_TREE;
3372 case LINE_TREE_FILE:
3373 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3374 request = REQ_VIEW_BLOB;
3381 open_view(view, request, flags);
3382 if (request == REQ_VIEW_TREE) {
3383 view->lineno = tree_lineno;
3390 tree_select(struct view *view, struct line *line)
3392 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3394 if (line->type == LINE_TREE_FILE) {
3395 string_copy_rev(ref_blob, text);
3397 } else if (line->type != LINE_TREE_DIR) {
3401 string_copy_rev(view->ref, text);
3404 static struct view_ops tree_ops = {
3415 blob_read(struct view *view, char *line)
3419 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3422 static struct view_ops blob_ops = {
3435 * Loading the blame view is a two phase job:
3437 * 1. File content is read either using opt_file from the
3438 * filesystem or using git-cat-file.
3439 * 2. Then blame information is incrementally added by
3440 * reading output from git-blame.
3443 struct blame_commit {
3444 char id[SIZEOF_REV]; /* SHA1 ID. */
3445 char title[128]; /* First line of the commit message. */
3446 char author[75]; /* Author of the commit. */
3447 struct tm time; /* Date from the author ident. */
3448 char filename[128]; /* Name of file. */
3452 struct blame_commit *commit;
3453 unsigned int header:1;
3457 #define BLAME_CAT_FILE_CMD "git cat-file blob %s:%s"
3458 #define BLAME_INCREMENTAL_CMD "git blame --incremental %s %s"
3461 blame_open(struct view *view)
3463 char path[SIZEOF_STR];
3464 char ref[SIZEOF_STR] = "";
3466 if (sq_quote(path, 0, opt_file) >= sizeof(path))
3469 if (*opt_ref && sq_quote(ref, 0, opt_ref) >= sizeof(ref))
3473 if (!string_format(view->cmd, BLAME_CAT_FILE_CMD, ref, path))
3476 view->pipe = fopen(opt_file, "r");
3478 !string_format(view->cmd, BLAME_CAT_FILE_CMD, "HEAD", path))
3483 view->pipe = popen(view->cmd, "r");
3487 if (!string_format(view->cmd, BLAME_INCREMENTAL_CMD, ref, path))
3490 string_format(view->ref, "%s ...", opt_file);
3491 string_copy_rev(view->vid, opt_file);
3492 set_nonblocking_input(TRUE);
3497 for (i = 0; i < view->lines; i++)
3498 free(view->line[i].data);
3502 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
3503 view->offset = view->lines = view->lineno = 0;
3505 view->start_time = time(NULL);
3510 static struct blame_commit *
3511 get_blame_commit(struct view *view, const char *id)
3515 for (i = 0; i < view->lines; i++) {
3516 struct blame *blame = view->line[i].data;
3521 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3522 return blame->commit;
3526 struct blame_commit *commit = calloc(1, sizeof(*commit));
3529 string_ncopy(commit->id, id, SIZEOF_REV);
3535 parse_number(char **posref, size_t *number, size_t min, size_t max)
3537 char *pos = *posref;
3540 pos = strchr(pos + 1, ' ');
3541 if (!pos || !isdigit(pos[1]))
3543 *number = atoi(pos + 1);
3544 if (*number < min || *number > max)
3551 static struct blame_commit *
3552 parse_blame_commit(struct view *view, char *text, int *blamed)
3554 struct blame_commit *commit;
3555 struct blame *blame;
3556 char *pos = text + SIZEOF_REV - 1;
3560 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3563 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3564 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3567 commit = get_blame_commit(view, text);
3573 struct line *line = &view->line[lineno + group - 1];
3576 blame->commit = commit;
3577 blame->header = !group;
3585 blame_read_file(struct view *view, char *line)
3590 if (view->lines > 0)
3591 pipe = popen(view->cmd, "r");
3592 else if (!view->parent)
3593 die("No blame exist for %s", view->vid);
3596 report("Failed to load blame data");
3605 size_t linelen = strlen(line);
3606 struct blame *blame = malloc(sizeof(*blame) + linelen);
3608 blame->commit = NULL;
3609 strncpy(blame->text, line, linelen);
3610 blame->text[linelen] = 0;
3611 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3616 match_blame_header(const char *name, char **line)
3618 size_t namelen = strlen(name);
3619 bool matched = !strncmp(name, *line, namelen);
3628 blame_read(struct view *view, char *line)
3630 static struct blame_commit *commit = NULL;
3631 static int blamed = 0;
3632 static time_t author_time;
3635 return blame_read_file(view, line);
3641 string_format(view->ref, "%s", view->vid);
3642 if (view_is_displayed(view)) {
3643 update_view_title(view);
3644 redraw_view_from(view, 0);
3650 commit = parse_blame_commit(view, line, &blamed);
3651 string_format(view->ref, "%s %2d%%", view->vid,
3652 blamed * 100 / view->lines);
3654 } else if (match_blame_header("author ", &line)) {
3655 string_ncopy(commit->author, line, strlen(line));
3657 } else if (match_blame_header("author-time ", &line)) {
3658 author_time = (time_t) atol(line);
3660 } else if (match_blame_header("author-tz ", &line)) {
3663 tz = ('0' - line[1]) * 60 * 60 * 10;
3664 tz += ('0' - line[2]) * 60 * 60;
3665 tz += ('0' - line[3]) * 60;
3666 tz += ('0' - line[4]) * 60;
3672 gmtime_r(&author_time, &commit->time);
3674 } else if (match_blame_header("summary ", &line)) {
3675 string_ncopy(commit->title, line, strlen(line));
3677 } else if (match_blame_header("filename ", &line)) {
3678 string_ncopy(commit->filename, line, strlen(line));
3686 blame_draw(struct view *view, struct line *line, unsigned int lineno)
3688 struct blame *blame = line->data;
3689 struct tm *time = NULL;
3690 char *id = NULL, *author = NULL;
3692 if (blame->commit && *blame->commit->filename) {
3693 id = blame->commit->id;
3694 author = blame->commit->author;
3695 time = &blame->commit->time;
3698 if (opt_date && draw_date(view, time))
3702 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
3705 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
3708 if (draw_lineno(view, lineno))
3711 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
3716 blame_request(struct view *view, enum request request, struct line *line)
3718 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3719 struct blame *blame = line->data;
3723 if (!blame->commit) {
3724 report("No commit loaded yet");
3728 if (!strcmp(blame->commit->id, NULL_ID)) {
3729 char path[SIZEOF_STR];
3731 if (sq_quote(path, 0, view->vid) >= sizeof(path))
3733 string_format(opt_cmd, "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s 2>/dev/null", path);
3736 open_view(view, REQ_VIEW_DIFF, flags);
3747 blame_grep(struct view *view, struct line *line)
3749 struct blame *blame = line->data;
3750 struct blame_commit *commit = blame->commit;
3753 #define MATCH(text, on) \
3754 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3757 char buf[DATE_COLS + 1];
3759 if (MATCH(commit->title, 1) ||
3760 MATCH(commit->author, opt_author) ||
3761 MATCH(commit->id, opt_date))
3764 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
3769 return MATCH(blame->text, 1);
3775 blame_select(struct view *view, struct line *line)
3777 struct blame *blame = line->data;
3778 struct blame_commit *commit = blame->commit;
3783 if (!strcmp(commit->id, NULL_ID))
3784 string_ncopy(ref_commit, "HEAD", 4);
3786 string_copy_rev(ref_commit, commit->id);
3789 static struct view_ops blame_ops = {
3807 char rev[SIZEOF_REV];
3808 char name[SIZEOF_STR];
3812 char rev[SIZEOF_REV];
3813 char name[SIZEOF_STR];
3817 static char status_onbranch[SIZEOF_STR];
3818 static struct status stage_status;
3819 static enum line_type stage_line_type;
3820 static size_t stage_chunks;
3821 static int *stage_chunk;
3823 /* This should work even for the "On branch" line. */
3825 status_has_none(struct view *view, struct line *line)
3827 return line < view->line + view->lines && !line[1].data;
3830 /* Get fields from the diff line:
3831 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3834 status_get_diff(struct status *file, char *buf, size_t bufsize)
3836 char *old_mode = buf + 1;
3837 char *new_mode = buf + 8;
3838 char *old_rev = buf + 15;
3839 char *new_rev = buf + 56;
3840 char *status = buf + 97;
3843 old_mode[-1] != ':' ||
3844 new_mode[-1] != ' ' ||
3845 old_rev[-1] != ' ' ||
3846 new_rev[-1] != ' ' ||
3850 file->status = *status;
3852 string_copy_rev(file->old.rev, old_rev);
3853 string_copy_rev(file->new.rev, new_rev);
3855 file->old.mode = strtoul(old_mode, NULL, 8);
3856 file->new.mode = strtoul(new_mode, NULL, 8);
3858 file->old.name[0] = file->new.name[0] = 0;
3864 status_run(struct view *view, const char cmd[], char status, enum line_type type)
3866 struct status *file = NULL;
3867 struct status *unmerged = NULL;
3868 char buf[SIZEOF_STR * 4];
3872 pipe = popen(cmd, "r");
3876 add_line_data(view, NULL, type);
3878 while (!feof(pipe) && !ferror(pipe)) {
3882 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3885 bufsize += readsize;
3887 /* Process while we have NUL chars. */
3888 while ((sep = memchr(buf, 0, bufsize))) {
3889 size_t sepsize = sep - buf + 1;
3892 if (!realloc_lines(view, view->line_size + 1))
3895 file = calloc(1, sizeof(*file));
3899 add_line_data(view, file, type);
3902 /* Parse diff info part. */
3904 file->status = status;
3906 string_copy(file->old.rev, NULL_ID);
3908 } else if (!file->status) {
3909 if (!status_get_diff(file, buf, sepsize))
3913 memmove(buf, sep + 1, bufsize);
3915 sep = memchr(buf, 0, bufsize);
3918 sepsize = sep - buf + 1;
3920 /* Collapse all 'M'odified entries that
3921 * follow a associated 'U'nmerged entry.
3923 if (file->status == 'U') {
3926 } else if (unmerged) {
3927 int collapse = !strcmp(buf, unmerged->new.name);
3938 /* Grab the old name for rename/copy. */
3939 if (!*file->old.name &&
3940 (file->status == 'R' || file->status == 'C')) {
3941 sepsize = sep - buf + 1;
3942 string_ncopy(file->old.name, buf, sepsize);
3944 memmove(buf, sep + 1, bufsize);
3946 sep = memchr(buf, 0, bufsize);
3949 sepsize = sep - buf + 1;
3952 /* git-ls-files just delivers a NUL separated
3953 * list of file names similar to the second half
3954 * of the git-diff-* output. */
3955 string_ncopy(file->new.name, buf, sepsize);
3956 if (!*file->old.name)
3957 string_copy(file->old.name, file->new.name);
3959 memmove(buf, sep + 1, bufsize);
3970 if (!view->line[view->lines - 1].data)
3971 add_line_data(view, NULL, LINE_STAT_NONE);
3977 /* Don't show unmerged entries in the staged section. */
3978 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD"
3979 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
3980 #define STATUS_LIST_OTHER_CMD \
3981 "git ls-files -z --others --exclude-standard"
3982 #define STATUS_LIST_NO_HEAD_CMD \
3983 "git ls-files -z --cached --exclude-standard"
3985 #define STATUS_DIFF_INDEX_SHOW_CMD \
3986 "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null"
3988 #define STATUS_DIFF_FILES_SHOW_CMD \
3989 "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null"
3991 #define STATUS_DIFF_NO_HEAD_SHOW_CMD \
3992 "git diff --no-color --patch-with-stat /dev/null %s 2>/dev/null"
3994 /* First parse staged info using git-diff-index(1), then parse unstaged
3995 * info using git-diff-files(1), and finally untracked files using
3996 * git-ls-files(1). */
3998 status_open(struct view *view)
4000 unsigned long prev_lineno = view->lineno;
4003 for (i = 0; i < view->lines; i++)
4004 free(view->line[i].data);
4006 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
4009 if (!realloc_lines(view, view->line_size + 7))
4012 add_line_data(view, NULL, LINE_STAT_HEAD);
4014 string_copy(status_onbranch, "Initial commit");
4015 else if (!*opt_head)
4016 string_copy(status_onbranch, "Not currently on any branch");
4017 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4020 system("git update-index -q --refresh >/dev/null 2>/dev/null");
4023 !status_run(view, STATUS_LIST_NO_HEAD_CMD, 'A', LINE_STAT_STAGED))
4025 else if (!status_run(view, STATUS_DIFF_INDEX_CMD, 0, LINE_STAT_STAGED))
4028 if (!status_run(view, STATUS_DIFF_FILES_CMD, 0, LINE_STAT_UNSTAGED) ||
4029 !status_run(view, STATUS_LIST_OTHER_CMD, '?', LINE_STAT_UNTRACKED))
4032 /* If all went well restore the previous line number to stay in
4033 * the context or select a line with something that can be
4035 if (prev_lineno >= view->lines)
4036 prev_lineno = view->lines - 1;
4037 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4039 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4042 /* If the above fails, always skip the "On branch" line. */
4043 if (prev_lineno < view->lines)
4044 view->lineno = prev_lineno;
4048 if (view->lineno < view->offset)
4049 view->offset = view->lineno;
4050 else if (view->offset + view->height <= view->lineno)
4051 view->offset = view->lineno - view->height + 1;
4057 status_draw(struct view *view, struct line *line, unsigned int lineno)
4059 struct status *status = line->data;
4060 enum line_type type;
4064 switch (line->type) {
4065 case LINE_STAT_STAGED:
4066 type = LINE_STAT_SECTION;
4067 text = "Changes to be committed:";
4070 case LINE_STAT_UNSTAGED:
4071 type = LINE_STAT_SECTION;
4072 text = "Changed but not updated:";
4075 case LINE_STAT_UNTRACKED:
4076 type = LINE_STAT_SECTION;
4077 text = "Untracked files:";
4080 case LINE_STAT_NONE:
4081 type = LINE_DEFAULT;
4082 text = " (no files)";
4085 case LINE_STAT_HEAD:
4086 type = LINE_STAT_HEAD;
4087 text = status_onbranch;
4094 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4096 buf[0] = status->status;
4097 if (draw_text(view, line->type, buf, TRUE))
4099 type = LINE_DEFAULT;
4100 text = status->new.name;
4103 draw_text(view, type, text, TRUE);
4108 status_enter(struct view *view, struct line *line)
4110 struct status *status = line->data;
4111 char oldpath[SIZEOF_STR] = "";
4112 char newpath[SIZEOF_STR] = "";
4115 enum open_flags split;
4117 if (line->type == LINE_STAT_NONE ||
4118 (!status && line[1].type == LINE_STAT_NONE)) {
4119 report("No file to diff");
4124 if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath))
4126 /* Diffs for unmerged entries are empty when pasing the
4127 * new path, so leave it empty. */
4128 if (status->status != 'U' &&
4129 sq_quote(newpath, 0, status->new.name) >= sizeof(newpath))
4134 line->type != LINE_STAT_UNTRACKED &&
4135 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
4138 switch (line->type) {
4139 case LINE_STAT_STAGED:
4141 if (!string_format_from(opt_cmd, &cmdsize,
4142 STATUS_DIFF_NO_HEAD_SHOW_CMD,
4146 if (!string_format_from(opt_cmd, &cmdsize,
4147 STATUS_DIFF_INDEX_SHOW_CMD,
4153 info = "Staged changes to %s";
4155 info = "Staged changes";
4158 case LINE_STAT_UNSTAGED:
4159 if (!string_format_from(opt_cmd, &cmdsize,
4160 STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath))
4163 info = "Unstaged changes to %s";
4165 info = "Unstaged changes";
4168 case LINE_STAT_UNTRACKED:
4173 report("No file to show");
4177 opt_pipe = fopen(status->new.name, "r");
4178 info = "Untracked file %s";
4181 case LINE_STAT_HEAD:
4185 die("line type %d not handled in switch", line->type);
4188 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4189 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | split);
4190 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4192 stage_status = *status;
4194 memset(&stage_status, 0, sizeof(stage_status));
4197 stage_line_type = line->type;
4199 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4206 status_exists(struct status *status, enum line_type type)
4208 struct view *view = VIEW(REQ_VIEW_STATUS);
4211 for (line = view->line; line < view->line + view->lines; line++) {
4212 struct status *pos = line->data;
4214 if (line->type == type && pos &&
4215 !strcmp(status->new.name, pos->new.name))
4224 status_update_prepare(enum line_type type)
4226 char cmd[SIZEOF_STR];
4230 type != LINE_STAT_UNTRACKED &&
4231 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4235 case LINE_STAT_STAGED:
4236 string_add(cmd, cmdsize, "git update-index -z --index-info");
4239 case LINE_STAT_UNSTAGED:
4240 case LINE_STAT_UNTRACKED:
4241 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
4245 die("line type %d not handled in switch", type);
4248 return popen(cmd, "w");
4252 status_update_write(FILE *pipe, struct status *status, enum line_type type)
4254 char buf[SIZEOF_STR];
4259 case LINE_STAT_STAGED:
4260 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4263 status->old.name, 0))
4267 case LINE_STAT_UNSTAGED:
4268 case LINE_STAT_UNTRACKED:
4269 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4274 die("line type %d not handled in switch", type);
4277 while (!ferror(pipe) && written < bufsize) {
4278 written += fwrite(buf + written, 1, bufsize - written, pipe);
4281 return written == bufsize;
4285 status_update_file(struct status *status, enum line_type type)
4287 FILE *pipe = status_update_prepare(type);
4293 result = status_update_write(pipe, status, type);
4299 status_update_files(struct view *view, struct line *line)
4301 FILE *pipe = status_update_prepare(line->type);
4303 struct line *pos = view->line + view->lines;
4310 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4313 for (file = 0, done = 0; result && file < files; line++, file++) {
4314 int almost_done = file * 100 / files;
4316 if (almost_done > done) {
4318 string_format(view->ref, "updating file %u of %u (%d%% done)",
4320 update_view_title(view);
4322 result = status_update_write(pipe, line->data, line->type);
4330 status_update(struct view *view)
4332 struct line *line = &view->line[view->lineno];
4334 assert(view->lines);
4337 /* This should work even for the "On branch" line. */
4338 if (line < view->line + view->lines && !line[1].data) {
4339 report("Nothing to update");
4343 if (!status_update_files(view, line + 1)) {
4344 report("Failed to update file status");
4348 } else if (!status_update_file(line->data, line->type)) {
4349 report("Failed to update file status");
4357 status_checkout(struct status *status, enum line_type type, bool has_none)
4359 if (!status || type != LINE_STAT_UNSTAGED) {
4360 if (type == LINE_STAT_STAGED) {
4361 report("Cannot checkout staged files");
4362 } else if (type == LINE_STAT_UNTRACKED) {
4363 report("Cannot checkout untracked files");
4364 } else if (has_none) {
4365 report("Nothing to checkout");
4367 report("Cannot checkout multiple files");
4372 char cmd[SIZEOF_STR];
4373 char file_sq[SIZEOF_STR];
4375 if (sq_quote(file_sq, 0, status->old.name) >= sizeof(file_sq) ||
4376 !string_format(cmd, "git checkout %s%s", opt_cdup, file_sq))
4379 return run_confirm(cmd, "Are you sure you want to overwrite any changes?");
4384 status_request(struct view *view, enum request request, struct line *line)
4386 struct status *status = line->data;
4389 case REQ_STATUS_UPDATE:
4390 if (!status_update(view))
4394 case REQ_STATUS_CHECKOUT:
4395 if (!status_checkout(status, line->type, status_has_none(view, line)))
4399 case REQ_STATUS_MERGE:
4400 if (!status || status->status != 'U') {
4401 report("Merging only possible for files with unmerged status ('U').");
4404 open_mergetool(status->new.name);
4411 open_editor(status->status != '?', status->new.name);
4414 case REQ_VIEW_BLAME:
4416 string_copy(opt_file, status->new.name);
4422 /* After returning the status view has been split to
4423 * show the stage view. No further reloading is
4425 status_enter(view, line);
4429 /* Simply reload the view. */
4436 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4442 status_select(struct view *view, struct line *line)
4444 struct status *status = line->data;
4445 char file[SIZEOF_STR] = "all files";
4449 if (status && !string_format(file, "'%s'", status->new.name))
4452 if (!status && line[1].type == LINE_STAT_NONE)
4455 switch (line->type) {
4456 case LINE_STAT_STAGED:
4457 text = "Press %s to unstage %s for commit";
4460 case LINE_STAT_UNSTAGED:
4461 text = "Press %s to stage %s for commit";
4464 case LINE_STAT_UNTRACKED:
4465 text = "Press %s to stage %s for addition";
4468 case LINE_STAT_HEAD:
4469 case LINE_STAT_NONE:
4470 text = "Nothing to update";
4474 die("line type %d not handled in switch", line->type);
4477 if (status && status->status == 'U') {
4478 text = "Press %s to resolve conflict in %s";
4479 key = get_key(REQ_STATUS_MERGE);
4482 key = get_key(REQ_STATUS_UPDATE);
4485 string_format(view->ref, text, key, file);
4489 status_grep(struct view *view, struct line *line)
4491 struct status *status = line->data;
4492 enum { S_STATUS, S_NAME, S_END } state;
4499 for (state = S_STATUS; state < S_END; state++) {
4503 case S_NAME: text = status->new.name; break;
4505 buf[0] = status->status;
4513 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4520 static struct view_ops status_ops = {
4532 stage_diff_line(FILE *pipe, struct line *line)
4534 char *buf = line->data;
4535 size_t bufsize = strlen(buf);
4538 while (!ferror(pipe) && written < bufsize) {
4539 written += fwrite(buf + written, 1, bufsize - written, pipe);
4544 return written == bufsize;
4548 stage_diff_write(FILE *pipe, struct line *line, struct line *end)
4550 while (line < end) {
4551 if (!stage_diff_line(pipe, line++))
4553 if (line->type == LINE_DIFF_CHUNK ||
4554 line->type == LINE_DIFF_HEADER)
4561 static struct line *
4562 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4564 for (; view->line < line; line--)
4565 if (line->type == type)
4572 stage_update_chunk(struct view *view, struct line *chunk)
4574 char cmd[SIZEOF_STR];
4576 struct line *diff_hdr;
4579 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4584 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4587 if (!string_format_from(cmd, &cmdsize,
4588 "git apply --whitespace=nowarn --cached %s - && "
4589 "git update-index -q --unmerged --refresh 2>/dev/null",
4590 stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
4593 pipe = popen(cmd, "w");
4597 if (!stage_diff_write(pipe, diff_hdr, chunk) ||
4598 !stage_diff_write(pipe, chunk, view->line + view->lines))
4603 return chunk ? TRUE : FALSE;
4607 stage_update(struct view *view, struct line *line)
4609 struct line *chunk = NULL;
4611 if (!opt_no_head && stage_line_type != LINE_STAT_UNTRACKED)
4612 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4615 if (!stage_update_chunk(view, chunk)) {
4616 report("Failed to apply chunk");
4620 } else if (!stage_status.status) {
4621 view = VIEW(REQ_VIEW_STATUS);
4623 for (line = view->line; line < view->line + view->lines; line++)
4624 if (line->type == stage_line_type)
4627 if (!status_update_files(view, line + 1)) {
4628 report("Failed to update files");
4632 } else if (!status_update_file(&stage_status, stage_line_type)) {
4633 report("Failed to update file");
4641 stage_next(struct view *view, struct line *line)
4645 if (!stage_chunks) {
4646 static size_t alloc = 0;
4649 for (line = view->line; line < view->line + view->lines; line++) {
4650 if (line->type != LINE_DIFF_CHUNK)
4653 tmp = realloc_items(stage_chunk, &alloc,
4654 stage_chunks, sizeof(*tmp));
4656 report("Allocation failure");
4661 stage_chunk[stage_chunks++] = line - view->line;
4665 for (i = 0; i < stage_chunks; i++) {
4666 if (stage_chunk[i] > view->lineno) {
4667 do_scroll_view(view, stage_chunk[i] - view->lineno);
4668 report("Chunk %d of %d", i + 1, stage_chunks);
4673 report("No next chunk found");
4677 stage_request(struct view *view, enum request request, struct line *line)
4680 case REQ_STATUS_UPDATE:
4681 if (!stage_update(view, line))
4685 case REQ_STATUS_CHECKOUT:
4686 if (!status_checkout(stage_status.status ? &stage_status : NULL,
4687 stage_line_type, FALSE))
4691 case REQ_STAGE_NEXT:
4692 if (stage_line_type == LINE_STAT_UNTRACKED) {
4693 report("File is untracked; press %s to add",
4694 get_key(REQ_STATUS_UPDATE));
4697 stage_next(view, line);
4701 if (!stage_status.new.name[0])
4704 open_editor(stage_status.status != '?', stage_status.new.name);
4708 /* Reload everything ... */
4711 case REQ_VIEW_BLAME:
4712 if (stage_status.new.name[0]) {
4713 string_copy(opt_file, stage_status.new.name);
4719 return pager_request(view, request, line);
4725 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4727 /* Check whether the staged entry still exists, and close the
4728 * stage view if it doesn't. */
4729 if (!status_exists(&stage_status, stage_line_type))
4730 return REQ_VIEW_CLOSE;
4732 if (stage_line_type == LINE_STAT_UNTRACKED)
4733 opt_pipe = fopen(stage_status.new.name, "r");
4734 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH | OPEN_NOMAXIMIZE);
4739 static struct view_ops stage_ops = {
4755 char id[SIZEOF_REV]; /* SHA1 ID. */
4756 char title[128]; /* First line of the commit message. */
4757 char author[75]; /* Author of the commit. */
4758 struct tm time; /* Date from the author ident. */
4759 struct ref **refs; /* Repository references. */
4760 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
4761 size_t graph_size; /* The width of the graph array. */
4762 bool has_parents; /* Rewritten --parents seen. */
4765 /* Size of rev graph with no "padding" columns */
4766 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
4769 struct rev_graph *prev, *next, *parents;
4770 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
4772 struct commit *commit;
4774 unsigned int boundary:1;
4777 /* Parents of the commit being visualized. */
4778 static struct rev_graph graph_parents[4];
4780 /* The current stack of revisions on the graph. */
4781 static struct rev_graph graph_stacks[4] = {
4782 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
4783 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
4784 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
4785 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
4789 graph_parent_is_merge(struct rev_graph *graph)
4791 return graph->parents->size > 1;
4795 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
4797 struct commit *commit = graph->commit;
4799 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
4800 commit->graph[commit->graph_size++] = symbol;
4804 clear_rev_graph(struct rev_graph *graph)
4806 graph->boundary = 0;
4807 graph->size = graph->pos = 0;
4808 graph->commit = NULL;
4809 memset(graph->parents, 0, sizeof(*graph->parents));
4813 done_rev_graph(struct rev_graph *graph)
4815 if (graph_parent_is_merge(graph) &&
4816 graph->pos < graph->size - 1 &&
4817 graph->next->size == graph->size + graph->parents->size - 1) {
4818 size_t i = graph->pos + graph->parents->size - 1;
4820 graph->commit->graph_size = i * 2;
4821 while (i < graph->next->size - 1) {
4822 append_to_rev_graph(graph, ' ');
4823 append_to_rev_graph(graph, '\\');
4828 clear_rev_graph(graph);
4832 push_rev_graph(struct rev_graph *graph, char *parent)
4836 /* "Collapse" duplicate parents lines.
4838 * FIXME: This needs to also update update the drawn graph but
4839 * for now it just serves as a method for pruning graph lines. */
4840 for (i = 0; i < graph->size; i++)
4841 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
4844 if (graph->size < SIZEOF_REVITEMS) {
4845 string_copy_rev(graph->rev[graph->size++], parent);
4850 get_rev_graph_symbol(struct rev_graph *graph)
4854 if (graph->boundary)
4855 symbol = REVGRAPH_BOUND;
4856 else if (graph->parents->size == 0)
4857 symbol = REVGRAPH_INIT;
4858 else if (graph_parent_is_merge(graph))
4859 symbol = REVGRAPH_MERGE;
4860 else if (graph->pos >= graph->size)
4861 symbol = REVGRAPH_BRANCH;
4863 symbol = REVGRAPH_COMMIT;
4869 draw_rev_graph(struct rev_graph *graph)
4872 chtype separator, line;
4874 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
4875 static struct rev_filler fillers[] = {
4881 chtype symbol = get_rev_graph_symbol(graph);
4882 struct rev_filler *filler;
4885 if (opt_line_graphics)
4886 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
4888 filler = &fillers[DEFAULT];
4890 for (i = 0; i < graph->pos; i++) {
4891 append_to_rev_graph(graph, filler->line);
4892 if (graph_parent_is_merge(graph->prev) &&
4893 graph->prev->pos == i)
4894 filler = &fillers[RSHARP];
4896 append_to_rev_graph(graph, filler->separator);
4899 /* Place the symbol for this revision. */
4900 append_to_rev_graph(graph, symbol);
4902 if (graph->prev->size > graph->size)
4903 filler = &fillers[RDIAG];
4905 filler = &fillers[DEFAULT];
4909 for (; i < graph->size; i++) {
4910 append_to_rev_graph(graph, filler->separator);
4911 append_to_rev_graph(graph, filler->line);
4912 if (graph_parent_is_merge(graph->prev) &&
4913 i < graph->prev->pos + graph->parents->size)
4914 filler = &fillers[RSHARP];
4915 if (graph->prev->size > graph->size)
4916 filler = &fillers[LDIAG];
4919 if (graph->prev->size > graph->size) {
4920 append_to_rev_graph(graph, filler->separator);
4921 if (filler->line != ' ')
4922 append_to_rev_graph(graph, filler->line);
4926 /* Prepare the next rev graph */
4928 prepare_rev_graph(struct rev_graph *graph)
4932 /* First, traverse all lines of revisions up to the active one. */
4933 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
4934 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
4937 push_rev_graph(graph->next, graph->rev[graph->pos]);
4940 /* Interleave the new revision parent(s). */
4941 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
4942 push_rev_graph(graph->next, graph->parents->rev[i]);
4944 /* Lastly, put any remaining revisions. */
4945 for (i = graph->pos + 1; i < graph->size; i++)
4946 push_rev_graph(graph->next, graph->rev[i]);
4950 update_rev_graph(struct rev_graph *graph)
4952 /* If this is the finalizing update ... */
4954 prepare_rev_graph(graph);
4956 /* Graph visualization needs a one rev look-ahead,
4957 * so the first update doesn't visualize anything. */
4958 if (!graph->prev->commit)
4961 draw_rev_graph(graph->prev);
4962 done_rev_graph(graph->prev->prev);
4970 static int load_refs(void);
4973 main_draw(struct view *view, struct line *line, unsigned int lineno)
4975 struct commit *commit = line->data;
4977 if (!*commit->author)
4980 if (opt_date && draw_date(view, &commit->time))
4984 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
4987 if (opt_rev_graph && commit->graph_size &&
4988 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
4991 if (opt_show_refs && commit->refs) {
4995 enum line_type type;
4997 if (commit->refs[i]->head)
4998 type = LINE_MAIN_HEAD;
4999 else if (commit->refs[i]->ltag)
5000 type = LINE_MAIN_LOCAL_TAG;
5001 else if (commit->refs[i]->tag)
5002 type = LINE_MAIN_TAG;
5003 else if (commit->refs[i]->tracked)
5004 type = LINE_MAIN_TRACKED;
5005 else if (commit->refs[i]->remote)
5006 type = LINE_MAIN_REMOTE;
5008 type = LINE_MAIN_REF;
5010 if (draw_text(view, type, "[", TRUE) ||
5011 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5012 draw_text(view, type, "]", TRUE))
5015 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5017 } while (commit->refs[i++]->next);
5020 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5024 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5026 main_read(struct view *view, char *line)
5028 static struct rev_graph *graph = graph_stacks;
5029 enum line_type type;
5030 struct commit *commit;
5035 if (!view->lines && !view->parent)
5036 die("No revisions match the given arguments.");
5037 if (view->lines > 0) {
5038 commit = view->line[view->lines - 1].data;
5039 if (!*commit->author) {
5042 graph->commit = NULL;
5045 update_rev_graph(graph);
5047 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5048 clear_rev_graph(&graph_stacks[i]);
5052 type = get_line_type(line);
5053 if (type == LINE_COMMIT) {
5054 commit = calloc(1, sizeof(struct commit));
5058 line += STRING_SIZE("commit ");
5060 graph->boundary = 1;
5064 string_copy_rev(commit->id, line);
5065 commit->refs = get_refs(commit->id);
5066 graph->commit = commit;
5067 add_line_data(view, commit, LINE_MAIN_COMMIT);
5069 while ((line = strchr(line, ' '))) {
5071 push_rev_graph(graph->parents, line);
5072 commit->has_parents = TRUE;
5079 commit = view->line[view->lines - 1].data;
5083 if (commit->has_parents)
5085 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5090 /* Parse author lines where the name may be empty:
5091 * author <email@address.tld> 1138474660 +0100
5093 char *ident = line + STRING_SIZE("author ");
5094 char *nameend = strchr(ident, '<');
5095 char *emailend = strchr(ident, '>');
5097 if (!nameend || !emailend)
5100 update_rev_graph(graph);
5101 graph = graph->next;
5103 *nameend = *emailend = 0;
5104 ident = chomp_string(ident);
5106 ident = chomp_string(nameend + 1);
5111 string_ncopy(commit->author, ident, strlen(ident));
5113 /* Parse epoch and timezone */
5114 if (emailend[1] == ' ') {
5115 char *secs = emailend + 2;
5116 char *zone = strchr(secs, ' ');
5117 time_t time = (time_t) atol(secs);
5119 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5123 tz = ('0' - zone[1]) * 60 * 60 * 10;
5124 tz += ('0' - zone[2]) * 60 * 60;
5125 tz += ('0' - zone[3]) * 60;
5126 tz += ('0' - zone[4]) * 60;
5134 gmtime_r(&time, &commit->time);
5139 /* Fill in the commit title if it has not already been set. */
5140 if (commit->title[0])
5143 /* Require titles to start with a non-space character at the
5144 * offset used by git log. */
5145 if (strncmp(line, " ", 4))
5148 /* Well, if the title starts with a whitespace character,
5149 * try to be forgiving. Otherwise we end up with no title. */
5150 while (isspace(*line))
5154 /* FIXME: More graceful handling of titles; append "..." to
5155 * shortened titles, etc. */
5157 string_ncopy(commit->title, line, strlen(line));
5164 main_request(struct view *view, enum request request, struct line *line)
5166 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5170 open_view(view, REQ_VIEW_DIFF, flags);
5174 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5184 grep_refs(struct ref **refs, regex_t *regex)
5192 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5194 } while (refs[i++]->next);
5200 main_grep(struct view *view, struct line *line)
5202 struct commit *commit = line->data;
5203 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5204 char buf[DATE_COLS + 1];
5207 for (state = S_TITLE; state < S_END; state++) {
5211 case S_TITLE: text = commit->title; break;
5215 text = commit->author;
5220 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5227 if (grep_refs(commit->refs, view->regex) == TRUE)
5234 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5242 main_select(struct view *view, struct line *line)
5244 struct commit *commit = line->data;
5246 string_copy_rev(view->ref, commit->id);
5247 string_copy_rev(ref_commit, view->ref);
5250 static struct view_ops main_ops = {
5262 * Unicode / UTF-8 handling
5264 * NOTE: Much of the following code for dealing with unicode is derived from
5265 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5266 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5269 /* I've (over)annotated a lot of code snippets because I am not entirely
5270 * confident that the approach taken by this small UTF-8 interface is correct.
5274 unicode_width(unsigned long c)
5277 (c <= 0x115f /* Hangul Jamo */
5280 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5282 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5283 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5284 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5285 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5286 || (c >= 0xffe0 && c <= 0xffe6)
5287 || (c >= 0x20000 && c <= 0x2fffd)
5288 || (c >= 0x30000 && c <= 0x3fffd)))
5292 return opt_tab_size;
5297 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5298 * Illegal bytes are set one. */
5299 static const unsigned char utf8_bytes[256] = {
5300 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,
5301 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,
5302 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,
5303 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,
5304 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,
5305 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,
5306 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,
5307 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,
5310 /* Decode UTF-8 multi-byte representation into a unicode character. */
5311 static inline unsigned long
5312 utf8_to_unicode(const char *string, size_t length)
5314 unsigned long unicode;
5318 unicode = string[0];
5321 unicode = (string[0] & 0x1f) << 6;
5322 unicode += (string[1] & 0x3f);
5325 unicode = (string[0] & 0x0f) << 12;
5326 unicode += ((string[1] & 0x3f) << 6);
5327 unicode += (string[2] & 0x3f);
5330 unicode = (string[0] & 0x0f) << 18;
5331 unicode += ((string[1] & 0x3f) << 12);
5332 unicode += ((string[2] & 0x3f) << 6);
5333 unicode += (string[3] & 0x3f);
5336 unicode = (string[0] & 0x0f) << 24;
5337 unicode += ((string[1] & 0x3f) << 18);
5338 unicode += ((string[2] & 0x3f) << 12);
5339 unicode += ((string[3] & 0x3f) << 6);
5340 unicode += (string[4] & 0x3f);
5343 unicode = (string[0] & 0x01) << 30;
5344 unicode += ((string[1] & 0x3f) << 24);
5345 unicode += ((string[2] & 0x3f) << 18);
5346 unicode += ((string[3] & 0x3f) << 12);
5347 unicode += ((string[4] & 0x3f) << 6);
5348 unicode += (string[5] & 0x3f);
5351 die("Invalid unicode length");
5354 /* Invalid characters could return the special 0xfffd value but NUL
5355 * should be just as good. */
5356 return unicode > 0xffff ? 0 : unicode;
5359 /* Calculates how much of string can be shown within the given maximum width
5360 * and sets trimmed parameter to non-zero value if all of string could not be
5361 * shown. If the reserve flag is TRUE, it will reserve at least one
5362 * trailing character, which can be useful when drawing a delimiter.
5364 * Returns the number of bytes to output from string to satisfy max_width. */
5366 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5368 const char *start = string;
5369 const char *end = strchr(string, '\0');
5370 unsigned char last_bytes = 0;
5371 size_t last_ucwidth = 0;
5376 while (string < end) {
5377 int c = *(unsigned char *) string;
5378 unsigned char bytes = utf8_bytes[c];
5380 unsigned long unicode;
5382 if (string + bytes > end)
5385 /* Change representation to figure out whether
5386 * it is a single- or double-width character. */
5388 unicode = utf8_to_unicode(string, bytes);
5389 /* FIXME: Graceful handling of invalid unicode character. */
5393 ucwidth = unicode_width(unicode);
5395 if (*width > max_width) {
5398 if (reserve && *width == max_width) {
5399 string -= last_bytes;
5400 *width -= last_ucwidth;
5407 last_ucwidth = ucwidth;
5410 return string - start;
5418 /* Whether or not the curses interface has been initialized. */
5419 static bool cursed = FALSE;
5421 /* The status window is used for polling keystrokes. */
5422 static WINDOW *status_win;
5424 static bool status_empty = TRUE;
5426 /* Update status and title window. */
5428 report(const char *msg, ...)
5430 struct view *view = display[current_view];
5436 char buf[SIZEOF_STR];
5439 va_start(args, msg);
5440 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5441 buf[sizeof(buf) - 1] = 0;
5442 buf[sizeof(buf) - 2] = '.';
5443 buf[sizeof(buf) - 3] = '.';
5444 buf[sizeof(buf) - 4] = '.';
5450 if (!status_empty || *msg) {
5453 va_start(args, msg);
5455 wmove(status_win, 0, 0);
5457 vwprintw(status_win, msg, args);
5458 status_empty = FALSE;
5460 status_empty = TRUE;
5462 wclrtoeol(status_win);
5463 wrefresh(status_win);
5468 update_view_title(view);
5469 update_display_cursor(view);
5472 /* Controls when nodelay should be in effect when polling user input. */
5474 set_nonblocking_input(bool loading)
5476 static unsigned int loading_views;
5478 if ((loading == FALSE && loading_views-- == 1) ||
5479 (loading == TRUE && loading_views++ == 0))
5480 nodelay(status_win, loading);
5488 /* Initialize the curses library */
5489 if (isatty(STDIN_FILENO)) {
5490 cursed = !!initscr();
5492 /* Leave stdin and stdout alone when acting as a pager. */
5493 FILE *io = fopen("/dev/tty", "r+");
5496 die("Failed to open /dev/tty");
5497 cursed = !!newterm(NULL, io, io);
5501 die("Failed to initialize curses");
5503 nonl(); /* Tell curses not to do NL->CR/NL on output */
5504 cbreak(); /* Take input chars one at a time, no wait for \n */
5505 noecho(); /* Don't echo input */
5506 leaveok(stdscr, TRUE);
5511 getmaxyx(stdscr, y, x);
5512 status_win = newwin(1, 0, y - 1, 0);
5514 die("Failed to create status window");
5516 /* Enable keyboard mapping */
5517 keypad(status_win, TRUE);
5518 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5520 TABSIZE = opt_tab_size;
5521 if (opt_line_graphics) {
5522 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5527 prompt_yesno(const char *prompt)
5529 enum { WAIT, STOP, CANCEL } status = WAIT;
5530 bool answer = FALSE;
5532 while (status == WAIT) {
5538 foreach_view (view, i)
5543 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
5544 wclrtoeol(status_win);
5546 /* Refresh, accept single keystroke of input */
5547 key = wgetch(status_win);
5571 /* Clear the status window */
5572 status_empty = FALSE;
5579 read_prompt(const char *prompt)
5581 enum { READING, STOP, CANCEL } status = READING;
5582 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
5585 while (status == READING) {
5591 foreach_view (view, i)
5596 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5597 wclrtoeol(status_win);
5599 /* Refresh, accept single keystroke of input */
5600 key = wgetch(status_win);
5605 status = pos ? STOP : CANCEL;
5623 if (pos >= sizeof(buf)) {
5624 report("Input string too long");
5629 buf[pos++] = (char) key;
5633 /* Clear the status window */
5634 status_empty = FALSE;
5637 if (status == CANCEL)
5646 * Repository references
5649 static struct ref *refs = NULL;
5650 static size_t refs_alloc = 0;
5651 static size_t refs_size = 0;
5653 /* Id <-> ref store */
5654 static struct ref ***id_refs = NULL;
5655 static size_t id_refs_alloc = 0;
5656 static size_t id_refs_size = 0;
5658 static struct ref **
5661 struct ref ***tmp_id_refs;
5662 struct ref **ref_list = NULL;
5663 size_t ref_list_alloc = 0;
5664 size_t ref_list_size = 0;
5667 for (i = 0; i < id_refs_size; i++)
5668 if (!strcmp(id, id_refs[i][0]->id))
5671 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
5676 id_refs = tmp_id_refs;
5678 for (i = 0; i < refs_size; i++) {
5681 if (strcmp(id, refs[i].id))
5684 tmp = realloc_items(ref_list, &ref_list_alloc,
5685 ref_list_size + 1, sizeof(*ref_list));
5693 if (ref_list_size > 0)
5694 ref_list[ref_list_size - 1]->next = 1;
5695 ref_list[ref_list_size] = &refs[i];
5697 /* XXX: The properties of the commit chains ensures that we can
5698 * safely modify the shared ref. The repo references will
5699 * always be similar for the same id. */
5700 ref_list[ref_list_size]->next = 0;
5705 id_refs[id_refs_size++] = ref_list;
5711 read_ref(char *id, size_t idlen, char *name, size_t namelen)
5716 bool remote = FALSE;
5717 bool tracked = FALSE;
5718 bool check_replace = FALSE;
5721 if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) {
5722 if (!strcmp(name + namelen - 3, "^{}")) {
5725 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
5726 check_replace = TRUE;
5732 namelen -= STRING_SIZE("refs/tags/");
5733 name += STRING_SIZE("refs/tags/");
5735 } else if (!strncmp(name, "refs/remotes/", STRING_SIZE("refs/remotes/"))) {
5737 namelen -= STRING_SIZE("refs/remotes/");
5738 name += STRING_SIZE("refs/remotes/");
5739 tracked = !strcmp(opt_remote, name);
5741 } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5742 namelen -= STRING_SIZE("refs/heads/");
5743 name += STRING_SIZE("refs/heads/");
5744 head = !strncmp(opt_head, name, namelen);
5746 } else if (!strcmp(name, "HEAD")) {
5747 opt_no_head = FALSE;
5751 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
5752 /* it's an annotated tag, replace the previous sha1 with the
5753 * resolved commit id; relies on the fact git-ls-remote lists
5754 * the commit id of an annotated tag right beofre the commit id
5756 refs[refs_size - 1].ltag = ltag;
5757 string_copy_rev(refs[refs_size - 1].id, id);
5761 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
5765 ref = &refs[refs_size++];
5766 ref->name = malloc(namelen + 1);
5770 strncpy(ref->name, name, namelen);
5771 ref->name[namelen] = 0;
5775 ref->remote = remote;
5776 ref->tracked = tracked;
5777 string_copy_rev(ref->id, id);
5785 const char *cmd_env = getenv("TIG_LS_REMOTE");
5786 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
5791 while (refs_size > 0)
5792 free(refs[--refs_size].name);
5793 while (id_refs_size > 0)
5794 free(id_refs[--id_refs_size]);
5796 return read_properties(popen(cmd, "r"), "\t", read_ref);
5800 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
5802 if (!strcmp(name, "i18n.commitencoding"))
5803 string_ncopy(opt_encoding, value, valuelen);
5805 if (!strcmp(name, "core.editor"))
5806 string_ncopy(opt_editor, value, valuelen);
5808 /* branch.<head>.remote */
5810 !strncmp(name, "branch.", 7) &&
5811 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5812 !strcmp(name + 7 + strlen(opt_head), ".remote"))
5813 string_ncopy(opt_remote, value, valuelen);
5815 if (*opt_head && *opt_remote &&
5816 !strncmp(name, "branch.", 7) &&
5817 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5818 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
5819 size_t from = strlen(opt_remote);
5821 if (!strncmp(value, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5822 value += STRING_SIZE("refs/heads/");
5823 valuelen -= STRING_SIZE("refs/heads/");
5826 if (!string_format_from(opt_remote, &from, "/%s", value))
5834 load_git_config(void)
5836 return read_properties(popen("git " GIT_CONFIG " --list", "r"),
5837 "=", read_repo_config_option);
5841 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
5843 if (!opt_git_dir[0]) {
5844 string_ncopy(opt_git_dir, name, namelen);
5846 } else if (opt_is_inside_work_tree == -1) {
5847 /* This can be 3 different values depending on the
5848 * version of git being used. If git-rev-parse does not
5849 * understand --is-inside-work-tree it will simply echo
5850 * the option else either "true" or "false" is printed.
5851 * Default to true for the unknown case. */
5852 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
5854 } else if (opt_cdup[0] == ' ') {
5855 string_ncopy(opt_cdup, name, namelen);
5857 if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5858 namelen -= STRING_SIZE("refs/heads/");
5859 name += STRING_SIZE("refs/heads/");
5860 string_ncopy(opt_head, name, namelen);
5868 load_repo_info(void)
5871 FILE *pipe = popen("(git rev-parse --git-dir --is-inside-work-tree "
5872 " --show-cdup; git symbolic-ref HEAD) 2>/dev/null", "r");
5874 /* XXX: The line outputted by "--show-cdup" can be empty so
5875 * initialize it to something invalid to make it possible to
5876 * detect whether it has been set or not. */
5879 result = read_properties(pipe, "=", read_repo_info);
5880 if (opt_cdup[0] == ' ')
5887 read_properties(FILE *pipe, const char *separators,
5888 int (*read_property)(char *, size_t, char *, size_t))
5890 char buffer[BUFSIZ];
5897 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
5902 name = chomp_string(name);
5903 namelen = strcspn(name, separators);
5905 if (name[namelen]) {
5907 value = chomp_string(name + namelen + 1);
5908 valuelen = strlen(value);
5915 state = read_property(name, namelen, value, valuelen);
5918 if (state != ERR && ferror(pipe))
5931 static void __NORETURN
5934 /* XXX: Restore tty modes and let the OS cleanup the rest! */
5940 static void __NORETURN
5941 die(const char *err, ...)
5947 va_start(args, err);
5948 fputs("tig: ", stderr);
5949 vfprintf(stderr, err, args);
5950 fputs("\n", stderr);
5957 warn(const char *msg, ...)
5961 va_start(args, msg);
5962 fputs("tig warning: ", stderr);
5963 vfprintf(stderr, msg, args);
5964 fputs("\n", stderr);
5969 main(int argc, char *argv[])
5972 enum request request;
5975 signal(SIGINT, quit);
5977 if (setlocale(LC_ALL, "")) {
5978 char *codeset = nl_langinfo(CODESET);
5980 string_ncopy(opt_codeset, codeset, strlen(codeset));
5983 if (load_repo_info() == ERR)
5984 die("Failed to load repo info.");
5986 if (load_options() == ERR)
5987 die("Failed to load user config.");
5989 if (load_git_config() == ERR)
5990 die("Failed to load repo config.");
5992 request = parse_options(argc, argv);
5993 if (request == REQ_NONE)
5996 /* Require a git repository unless when running in pager mode. */
5997 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
5998 die("Not a git repository");
6000 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6003 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6004 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6005 if (opt_iconv == ICONV_NONE)
6006 die("Failed to initialize character set conversion");
6009 if (load_refs() == ERR)
6010 die("Failed to load refs.");
6012 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
6013 view->cmd_env = getenv(view->cmd_env);
6017 while (view_driver(display[current_view], request)) {
6021 foreach_view (view, i)
6024 /* Refresh, accept single keystroke of input */
6025 key = wgetch(status_win);
6027 /* wgetch() with nodelay() enabled returns ERR when there's no
6034 request = get_keybinding(display[current_view]->keymap, key);
6036 /* Some low-level request handling. This keeps access to
6037 * status_win restricted. */
6041 char *cmd = read_prompt(":");
6043 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
6044 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
6045 request = REQ_VIEW_DIFF;
6047 request = REQ_VIEW_PAGER;
6050 /* Always reload^Wrerun commands from the prompt. */
6051 open_view(view, request, OPEN_RELOAD);
6058 case REQ_SEARCH_BACK:
6060 const char *prompt = request == REQ_SEARCH
6062 char *search = read_prompt(prompt);
6065 string_ncopy(opt_search, search, strlen(search));
6070 case REQ_SCREEN_RESIZE:
6074 getmaxyx(stdscr, height, width);
6076 /* Resize the status view and let the view driver take
6077 * care of resizing the displayed views. */
6078 wresize(status_win, 1, width);
6079 mvwin(status_win, height - 1, 0);
6080 wrefresh(status_win);