1 /* Copyright (c) 2006-2008 Jonas Fonseca <fonseca@diku.dk>
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License as
5 * published by the Free Software Foundation; either version 2 of
6 * the License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
19 #define TIG_VERSION "unknown-version"
34 #include <sys/types.h>
45 /* ncurses(3): Must be defined to have extended wide-character functions. */
46 #define _XOPEN_SOURCE_EXTENDED
48 #ifdef HAVE_NCURSESW_NCURSES_H
49 #include <ncursesw/ncurses.h>
51 #ifdef HAVE_NCURSES_NCURSES_H
52 #include <ncurses/ncurses.h>
59 #define __NORETURN __attribute__((__noreturn__))
64 static void __NORETURN die(const char *err, ...);
65 static void warn(const char *msg, ...);
66 static void report(const char *msg, ...);
67 static int read_properties(FILE *pipe, const char *separators, int (*read)(char *, size_t, char *, size_t));
68 static void set_nonblocking_input(bool loading);
69 static size_t utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve);
70 static bool prompt_yesno(const char *prompt);
72 #define ABS(x) ((x) >= 0 ? (x) : -(x))
73 #define MIN(x, y) ((x) < (y) ? (x) : (y))
75 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
76 #define STRING_SIZE(x) (sizeof(x) - 1)
78 #define SIZEOF_STR 1024 /* Default string size. */
79 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
80 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL */
84 #define REVGRAPH_INIT 'I'
85 #define REVGRAPH_MERGE 'M'
86 #define REVGRAPH_BRANCH '+'
87 #define REVGRAPH_COMMIT '*'
88 #define REVGRAPH_BOUND '^'
90 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
92 /* This color name can be used to refer to the default term colors. */
93 #define COLOR_DEFAULT (-1)
95 #define ICONV_NONE ((iconv_t) -1)
97 #define ICONV_CONST /* nothing */
100 /* The format and size of the date column in the main view. */
101 #define DATE_FORMAT "%Y-%m-%d %H:%M"
102 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
104 #define AUTHOR_COLS 20
107 /* The default interval between line numbers. */
108 #define NUMBER_INTERVAL 5
112 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
114 #define NULL_ID "0000000000000000000000000000000000000000"
117 #define GIT_CONFIG "git config"
120 #define TIG_LS_REMOTE \
121 "git ls-remote . 2>/dev/null"
123 #define TIG_DIFF_CMD \
124 "git show --pretty=fuller --no-color --root --patch-with-stat --find-copies-harder -C %s 2>/dev/null"
126 #define TIG_LOG_CMD \
127 "git log --no-color --cc --stat -n100 %s 2>/dev/null"
129 #define TIG_MAIN_BASE \
130 "git log --no-color --pretty=raw --parents --topo-order"
132 #define TIG_MAIN_CMD \
133 TIG_MAIN_BASE " %s 2>/dev/null"
135 #define TIG_TREE_CMD \
138 #define TIG_BLOB_CMD \
139 "git cat-file blob %s"
141 /* XXX: Needs to be defined to the empty string. */
142 #define TIG_HELP_CMD ""
143 #define TIG_PAGER_CMD ""
144 #define TIG_STATUS_CMD ""
145 #define TIG_STAGE_CMD ""
146 #define TIG_BLAME_CMD ""
148 /* Some ascii-shorthands fitted into the ncurses namespace. */
150 #define KEY_RETURN '\r'
155 char *name; /* Ref name; tag or head names are shortened. */
156 char id[SIZEOF_REV]; /* Commit SHA1 ID */
157 unsigned int head:1; /* Is it the current HEAD? */
158 unsigned int tag:1; /* Is it a tag? */
159 unsigned int ltag:1; /* If so, is the tag local? */
160 unsigned int remote:1; /* Is it a remote ref? */
161 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
162 unsigned int next:1; /* For ref lists: are there more refs? */
165 static struct ref **get_refs(char *id);
174 set_from_int_map(struct int_map *map, size_t map_size,
175 int *value, const char *name, int namelen)
180 for (i = 0; i < map_size; i++)
181 if (namelen == map[i].namelen &&
182 !strncasecmp(name, map[i].name, namelen)) {
183 *value = map[i].value;
196 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
198 if (srclen > dstlen - 1)
201 strncpy(dst, src, srclen);
205 /* Shorthands for safely copying into a fixed buffer. */
207 #define string_copy(dst, src) \
208 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
210 #define string_ncopy(dst, src, srclen) \
211 string_ncopy_do(dst, sizeof(dst), src, srclen)
213 #define string_copy_rev(dst, src) \
214 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
216 #define string_add(dst, from, src) \
217 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
220 chomp_string(char *name)
224 while (isspace(*name))
227 namelen = strlen(name) - 1;
228 while (namelen > 0 && isspace(name[namelen]))
235 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
238 size_t pos = bufpos ? *bufpos : 0;
241 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
247 return pos >= bufsize ? FALSE : TRUE;
250 #define string_format(buf, fmt, args...) \
251 string_nformat(buf, sizeof(buf), NULL, fmt, args)
253 #define string_format_from(buf, from, fmt, args...) \
254 string_nformat(buf, sizeof(buf), from, fmt, args)
257 string_enum_compare(const char *str1, const char *str2, int len)
261 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
263 /* Diff-Header == DIFF_HEADER */
264 for (i = 0; i < len; i++) {
265 if (toupper(str1[i]) == toupper(str2[i]))
268 if (string_enum_sep(str1[i]) &&
269 string_enum_sep(str2[i]))
272 return str1[i] - str2[i];
280 * NOTE: The following is a slightly modified copy of the git project's shell
281 * quoting routines found in the quote.c file.
283 * Help to copy the thing properly quoted for the shell safety. any single
284 * quote is replaced with '\'', any exclamation point is replaced with '\!',
285 * and the whole thing is enclosed in a
288 * original sq_quote result
289 * name ==> name ==> 'name'
290 * a b ==> a b ==> 'a b'
291 * a'b ==> a'\''b ==> 'a'\''b'
292 * a!b ==> a'\!'b ==> 'a'\!'b'
296 sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src)
300 #define BUFPUT(x) do { if (bufsize < SIZEOF_STR) buf[bufsize++] = (x); } while (0)
303 while ((c = *src++)) {
304 if (c == '\'' || c == '!') {
315 if (bufsize < SIZEOF_STR)
327 /* XXX: Keep the view request first and in sync with views[]. */ \
328 REQ_GROUP("View switching") \
329 REQ_(VIEW_MAIN, "Show main view"), \
330 REQ_(VIEW_DIFF, "Show diff view"), \
331 REQ_(VIEW_LOG, "Show log view"), \
332 REQ_(VIEW_TREE, "Show tree view"), \
333 REQ_(VIEW_BLOB, "Show blob view"), \
334 REQ_(VIEW_BLAME, "Show blame view"), \
335 REQ_(VIEW_HELP, "Show help page"), \
336 REQ_(VIEW_PAGER, "Show pager view"), \
337 REQ_(VIEW_STATUS, "Show status view"), \
338 REQ_(VIEW_STAGE, "Show stage view"), \
340 REQ_GROUP("View manipulation") \
341 REQ_(ENTER, "Enter current line and scroll"), \
342 REQ_(NEXT, "Move to next"), \
343 REQ_(PREVIOUS, "Move to previous"), \
344 REQ_(VIEW_NEXT, "Move focus to next view"), \
345 REQ_(REFRESH, "Reload and refresh"), \
346 REQ_(MAXIMIZE, "Maximize the current view"), \
347 REQ_(VIEW_CLOSE, "Close the current view"), \
348 REQ_(QUIT, "Close all views and quit"), \
350 REQ_GROUP("Cursor navigation") \
351 REQ_(MOVE_UP, "Move cursor one line up"), \
352 REQ_(MOVE_DOWN, "Move cursor one line down"), \
353 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
354 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
355 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
356 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
358 REQ_GROUP("Scrolling") \
359 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
360 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
361 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
362 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
364 REQ_GROUP("Searching") \
365 REQ_(SEARCH, "Search the view"), \
366 REQ_(SEARCH_BACK, "Search backwards in the view"), \
367 REQ_(FIND_NEXT, "Find next search match"), \
368 REQ_(FIND_PREV, "Find previous search match"), \
371 REQ_(PROMPT, "Bring up the prompt"), \
372 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
373 REQ_(SCREEN_RESIZE, "Resize the screen"), \
374 REQ_(SHOW_VERSION, "Show version information"), \
375 REQ_(STOP_LOADING, "Stop all loading views"), \
376 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
377 REQ_(TOGGLE_DATE, "Toggle date display"), \
378 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
379 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
380 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
381 REQ_(STATUS_UPDATE, "Update file status"), \
382 REQ_(STATUS_CHECKOUT, "Checkout file"), \
383 REQ_(STATUS_MERGE, "Merge file using external tool"), \
384 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
385 REQ_(TREE_PARENT, "Switch to parent directory in tree view"), \
386 REQ_(EDIT, "Open in editor"), \
387 REQ_(NONE, "Do nothing")
390 /* User action requests. */
392 #define REQ_GROUP(help)
393 #define REQ_(req, help) REQ_##req
395 /* Offset all requests to avoid conflicts with ncurses getch values. */
396 REQ_OFFSET = KEY_MAX + 1,
403 struct request_info {
404 enum request request;
410 static struct request_info req_info[] = {
411 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
412 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
419 get_request(const char *name)
421 int namelen = strlen(name);
424 for (i = 0; i < ARRAY_SIZE(req_info); i++)
425 if (req_info[i].namelen == namelen &&
426 !string_enum_compare(req_info[i].name, name, namelen))
427 return req_info[i].request;
437 static const char usage[] =
438 "tig " TIG_VERSION " (" __DATE__ ")\n"
440 "Usage: tig [options] [revs] [--] [paths]\n"
441 " or: tig show [options] [revs] [--] [paths]\n"
442 " or: tig blame [rev] path\n"
444 " or: tig < [git command output]\n"
447 " -v, --version Show version and exit\n"
448 " -h, --help Show help message and exit";
450 /* Option and state variables. */
451 static bool opt_date = TRUE;
452 static bool opt_author = TRUE;
453 static bool opt_line_number = FALSE;
454 static bool opt_line_graphics = TRUE;
455 static bool opt_rev_graph = FALSE;
456 static bool opt_show_refs = TRUE;
457 static int opt_num_interval = NUMBER_INTERVAL;
458 static int opt_tab_size = TAB_SIZE;
459 static int opt_author_cols = AUTHOR_COLS-1;
460 static char opt_cmd[SIZEOF_STR] = "";
461 static char opt_path[SIZEOF_STR] = "";
462 static char opt_file[SIZEOF_STR] = "";
463 static char opt_ref[SIZEOF_REF] = "";
464 static char opt_head[SIZEOF_REF] = "";
465 static char opt_remote[SIZEOF_REF] = "";
466 static bool opt_no_head = TRUE;
467 static FILE *opt_pipe = NULL;
468 static char opt_encoding[20] = "UTF-8";
469 static bool opt_utf8 = TRUE;
470 static char opt_codeset[20] = "UTF-8";
471 static iconv_t opt_iconv = ICONV_NONE;
472 static char opt_search[SIZEOF_STR] = "";
473 static char opt_cdup[SIZEOF_STR] = "";
474 static char opt_git_dir[SIZEOF_STR] = "";
475 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
476 static char opt_editor[SIZEOF_STR] = "";
479 parse_options(int argc, char *argv[])
481 enum request request = REQ_VIEW_MAIN;
484 bool seen_dashdash = FALSE;
487 if (!isatty(STDIN_FILENO)) {
489 return REQ_VIEW_PAGER;
493 return REQ_VIEW_MAIN;
495 subcommand = argv[1];
496 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
497 if (!strcmp(subcommand, "-S"))
498 warn("`-S' has been deprecated; use `tig status' instead");
500 warn("ignoring arguments after `%s'", subcommand);
501 return REQ_VIEW_STATUS;
503 } else if (!strcmp(subcommand, "blame")) {
504 if (argc <= 2 || argc > 4)
505 die("invalid number of options to blame\n\n%s", usage);
509 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
513 string_ncopy(opt_file, argv[i], strlen(argv[i]));
514 return REQ_VIEW_BLAME;
516 } else if (!strcmp(subcommand, "show")) {
517 request = REQ_VIEW_DIFF;
519 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
520 request = subcommand[0] == 'l' ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
521 warn("`tig %s' has been deprecated", subcommand);
528 /* XXX: This is vulnerable to the user overriding
529 * options required for the main view parser. */
530 string_copy(opt_cmd, TIG_MAIN_BASE);
532 string_format(opt_cmd, "git %s", subcommand);
534 buf_size = strlen(opt_cmd);
536 for (i = 1 + !!subcommand; i < argc; i++) {
539 if (seen_dashdash || !strcmp(opt, "--")) {
540 seen_dashdash = TRUE;
542 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
543 printf("tig version %s\n", TIG_VERSION);
546 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
547 printf("%s\n", usage);
551 opt_cmd[buf_size++] = ' ';
552 buf_size = sq_quote(opt_cmd, buf_size, opt);
553 if (buf_size >= sizeof(opt_cmd))
554 die("command too long");
557 opt_cmd[buf_size] = 0;
564 * Line-oriented content detection.
568 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
569 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
570 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
571 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
572 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
573 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
574 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
575 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
576 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
577 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
578 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
579 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
580 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
581 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
582 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
583 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
584 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
585 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
586 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
587 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
588 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
589 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
590 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
591 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
592 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
593 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
594 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
595 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
596 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
597 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
598 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
599 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
600 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
601 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
602 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
603 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
604 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
605 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
606 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
607 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
608 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
609 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
610 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
611 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
612 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
613 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
614 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
615 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
616 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
617 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
618 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
619 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
620 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
621 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
624 #define LINE(type, line, fg, bg, attr) \
632 const char *name; /* Option name. */
633 int namelen; /* Size of option name. */
634 const char *line; /* The start of line to match. */
635 int linelen; /* Size of string to match. */
636 int fg, bg, attr; /* Color and text attributes for the lines. */
639 static struct line_info line_info[] = {
640 #define LINE(type, line, fg, bg, attr) \
641 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
646 static enum line_type
647 get_line_type(char *line)
649 int linelen = strlen(line);
652 for (type = 0; type < ARRAY_SIZE(line_info); type++)
653 /* Case insensitive search matches Signed-off-by lines better. */
654 if (linelen >= line_info[type].linelen &&
655 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
662 get_line_attr(enum line_type type)
664 assert(type < ARRAY_SIZE(line_info));
665 return COLOR_PAIR(type) | line_info[type].attr;
668 static struct line_info *
669 get_line_info(char *name)
671 size_t namelen = strlen(name);
674 for (type = 0; type < ARRAY_SIZE(line_info); type++)
675 if (namelen == line_info[type].namelen &&
676 !string_enum_compare(line_info[type].name, name, namelen))
677 return &line_info[type];
685 int default_bg = line_info[LINE_DEFAULT].bg;
686 int default_fg = line_info[LINE_DEFAULT].fg;
691 if (assume_default_colors(default_fg, default_bg) == ERR) {
692 default_bg = COLOR_BLACK;
693 default_fg = COLOR_WHITE;
696 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
697 struct line_info *info = &line_info[type];
698 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
699 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
701 init_pair(type, fg, bg);
709 unsigned int selected:1;
710 unsigned int dirty:1;
712 void *data; /* User data */
722 enum request request;
723 struct keybinding *next;
726 static struct keybinding default_keybindings[] = {
728 { 'm', REQ_VIEW_MAIN },
729 { 'd', REQ_VIEW_DIFF },
730 { 'l', REQ_VIEW_LOG },
731 { 't', REQ_VIEW_TREE },
732 { 'f', REQ_VIEW_BLOB },
733 { 'B', REQ_VIEW_BLAME },
734 { 'p', REQ_VIEW_PAGER },
735 { 'h', REQ_VIEW_HELP },
736 { 'S', REQ_VIEW_STATUS },
737 { 'c', REQ_VIEW_STAGE },
739 /* View manipulation */
740 { 'q', REQ_VIEW_CLOSE },
741 { KEY_TAB, REQ_VIEW_NEXT },
742 { KEY_RETURN, REQ_ENTER },
743 { KEY_UP, REQ_PREVIOUS },
744 { KEY_DOWN, REQ_NEXT },
745 { 'R', REQ_REFRESH },
746 { KEY_F(5), REQ_REFRESH },
747 { 'O', REQ_MAXIMIZE },
749 /* Cursor navigation */
750 { 'k', REQ_MOVE_UP },
751 { 'j', REQ_MOVE_DOWN },
752 { KEY_HOME, REQ_MOVE_FIRST_LINE },
753 { KEY_END, REQ_MOVE_LAST_LINE },
754 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
755 { ' ', REQ_MOVE_PAGE_DOWN },
756 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
757 { 'b', REQ_MOVE_PAGE_UP },
758 { '-', REQ_MOVE_PAGE_UP },
761 { KEY_IC, REQ_SCROLL_LINE_UP },
762 { KEY_DC, REQ_SCROLL_LINE_DOWN },
763 { 'w', REQ_SCROLL_PAGE_UP },
764 { 's', REQ_SCROLL_PAGE_DOWN },
768 { '?', REQ_SEARCH_BACK },
769 { 'n', REQ_FIND_NEXT },
770 { 'N', REQ_FIND_PREV },
774 { 'z', REQ_STOP_LOADING },
775 { 'v', REQ_SHOW_VERSION },
776 { 'r', REQ_SCREEN_REDRAW },
777 { '.', REQ_TOGGLE_LINENO },
778 { 'D', REQ_TOGGLE_DATE },
779 { 'A', REQ_TOGGLE_AUTHOR },
780 { 'g', REQ_TOGGLE_REV_GRAPH },
781 { 'F', REQ_TOGGLE_REFS },
783 { 'u', REQ_STATUS_UPDATE },
784 { '!', REQ_STATUS_CHECKOUT },
785 { 'M', REQ_STATUS_MERGE },
786 { '@', REQ_STAGE_NEXT },
787 { ',', REQ_TREE_PARENT },
790 /* Using the ncurses SIGWINCH handler. */
791 { KEY_RESIZE, REQ_SCREEN_RESIZE },
794 #define KEYMAP_INFO \
808 #define KEYMAP_(name) KEYMAP_##name
813 static struct int_map keymap_table[] = {
814 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
819 #define set_keymap(map, name) \
820 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
822 static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)];
825 add_keybinding(enum keymap keymap, enum request request, int key)
827 struct keybinding *keybinding;
829 keybinding = calloc(1, sizeof(*keybinding));
831 die("Failed to allocate keybinding");
833 keybinding->alias = key;
834 keybinding->request = request;
835 keybinding->next = keybindings[keymap];
836 keybindings[keymap] = keybinding;
839 /* Looks for a key binding first in the given map, then in the generic map, and
840 * lastly in the default keybindings. */
842 get_keybinding(enum keymap keymap, int key)
844 struct keybinding *kbd;
847 for (kbd = keybindings[keymap]; kbd; kbd = kbd->next)
848 if (kbd->alias == key)
851 for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next)
852 if (kbd->alias == key)
855 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
856 if (default_keybindings[i].alias == key)
857 return default_keybindings[i].request;
859 return (enum request) key;
868 static struct key key_table[] = {
869 { "Enter", KEY_RETURN },
871 { "Backspace", KEY_BACKSPACE },
873 { "Escape", KEY_ESC },
874 { "Left", KEY_LEFT },
875 { "Right", KEY_RIGHT },
877 { "Down", KEY_DOWN },
878 { "Insert", KEY_IC },
879 { "Delete", KEY_DC },
881 { "Home", KEY_HOME },
883 { "PageUp", KEY_PPAGE },
884 { "PageDown", KEY_NPAGE },
894 { "F10", KEY_F(10) },
895 { "F11", KEY_F(11) },
896 { "F12", KEY_F(12) },
900 get_key_value(const char *name)
904 for (i = 0; i < ARRAY_SIZE(key_table); i++)
905 if (!strcasecmp(key_table[i].name, name))
906 return key_table[i].value;
908 if (strlen(name) == 1 && isprint(*name))
915 get_key_name(int key_value)
917 static char key_char[] = "'X'";
921 for (key = 0; key < ARRAY_SIZE(key_table); key++)
922 if (key_table[key].value == key_value)
923 seq = key_table[key].name;
927 isprint(key_value)) {
928 key_char[1] = (char) key_value;
932 return seq ? seq : "'?'";
936 get_key(enum request request)
938 static char buf[BUFSIZ];
945 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
946 struct keybinding *keybinding = &default_keybindings[i];
948 if (keybinding->request != request)
951 if (!string_format_from(buf, &pos, "%s%s", sep,
952 get_key_name(keybinding->alias)))
953 return "Too many keybindings!";
963 char cmd[SIZEOF_STR];
966 static struct run_request *run_request;
967 static size_t run_requests;
970 add_run_request(enum keymap keymap, int key, int argc, char **argv)
972 struct run_request *req;
973 char cmd[SIZEOF_STR];
976 for (bufpos = 0; argc > 0; argc--, argv++)
977 if (!string_format_from(cmd, &bufpos, "%s ", *argv))
980 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
985 req = &run_request[run_requests++];
986 string_copy(req->cmd, cmd);
987 req->keymap = keymap;
990 return REQ_NONE + run_requests;
993 static struct run_request *
994 get_run_request(enum request request)
996 if (request <= REQ_NONE)
998 return &run_request[request - REQ_NONE - 1];
1002 add_builtin_run_requests(void)
1009 { KEYMAP_MAIN, 'C', { "git cherry-pick %(commit)" } },
1010 { KEYMAP_GENERIC, 'G', { "git gc" } },
1014 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1017 req = add_run_request(reqs[i].keymap, reqs[i].key, 1, reqs[i].argv);
1018 if (req != REQ_NONE)
1019 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1024 * User config file handling.
1027 static struct int_map color_map[] = {
1028 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1040 #define set_color(color, name) \
1041 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1043 static struct int_map attr_map[] = {
1044 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1051 ATTR_MAP(UNDERLINE),
1054 #define set_attribute(attr, name) \
1055 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1057 static int config_lineno;
1058 static bool config_errors;
1059 static char *config_msg;
1061 /* Wants: object fgcolor bgcolor [attr] */
1063 option_color_command(int argc, char *argv[])
1065 struct line_info *info;
1067 if (argc != 3 && argc != 4) {
1068 config_msg = "Wrong number of arguments given to color command";
1072 info = get_line_info(argv[0]);
1074 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1075 info = get_line_info("delimiter");
1077 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1078 info = get_line_info("date");
1081 config_msg = "Unknown color name";
1086 if (set_color(&info->fg, argv[1]) == ERR ||
1087 set_color(&info->bg, argv[2]) == ERR) {
1088 config_msg = "Unknown color";
1092 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1093 config_msg = "Unknown attribute";
1100 static bool parse_bool(const char *s)
1102 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1103 !strcmp(s, "yes")) ? TRUE : FALSE;
1107 parse_int(const char *s, int default_value, int min, int max)
1109 int value = atoi(s);
1111 return (value < min || value > max) ? default_value : value;
1114 /* Wants: name = value */
1116 option_set_command(int argc, char *argv[])
1119 config_msg = "Wrong number of arguments given to set command";
1123 if (strcmp(argv[1], "=")) {
1124 config_msg = "No value assigned";
1128 if (!strcmp(argv[0], "show-author")) {
1129 opt_author = parse_bool(argv[2]);
1133 if (!strcmp(argv[0], "show-date")) {
1134 opt_date = parse_bool(argv[2]);
1138 if (!strcmp(argv[0], "show-rev-graph")) {
1139 opt_rev_graph = parse_bool(argv[2]);
1143 if (!strcmp(argv[0], "show-refs")) {
1144 opt_show_refs = parse_bool(argv[2]);
1148 if (!strcmp(argv[0], "show-line-numbers")) {
1149 opt_line_number = parse_bool(argv[2]);
1153 if (!strcmp(argv[0], "line-graphics")) {
1154 opt_line_graphics = parse_bool(argv[2]);
1158 if (!strcmp(argv[0], "line-number-interval")) {
1159 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1163 if (!strcmp(argv[0], "author-width")) {
1164 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1168 if (!strcmp(argv[0], "tab-size")) {
1169 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1173 if (!strcmp(argv[0], "commit-encoding")) {
1174 char *arg = argv[2];
1175 int delimiter = *arg;
1178 switch (delimiter) {
1181 for (arg++, i = 0; arg[i]; i++)
1182 if (arg[i] == delimiter) {
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, 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)
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)
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))
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. */
2453 open_view(struct view *prev, enum request request, enum open_flags flags)
2455 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2456 bool split = !!(flags & OPEN_SPLIT);
2457 bool reload = !!(flags & OPEN_RELOAD);
2458 bool nomaximize = !!(flags & OPEN_NOMAXIMIZE);
2459 struct view *view = VIEW(request);
2460 int nviews = displayed_views();
2461 struct view *base_view = display[0];
2463 if (view == prev && nviews == 1 && !reload) {
2464 report("Already in %s view", view->name);
2468 if (view->git_dir && !opt_git_dir[0]) {
2469 report("The %s view is disabled in pager view", view->name);
2477 } else if (!nomaximize) {
2478 /* Maximize the current view. */
2479 memset(display, 0, sizeof(display));
2481 display[current_view] = view;
2484 /* Resize the view when switching between split- and full-screen,
2485 * or when switching between two different full-screen views. */
2486 if (nviews != displayed_views() ||
2487 (nviews == 1 && base_view != display[0]))
2491 end_update(view, TRUE);
2493 if (view->ops->open) {
2494 if (!view->ops->open(view)) {
2495 report("Failed to load %s view", view->name);
2499 } else if ((reload || strcmp(view->vid, view->id)) &&
2500 !begin_update(view)) {
2501 report("Failed to load %s view", view->name);
2505 if (split && prev->lineno - prev->offset >= prev->height) {
2506 /* Take the title line into account. */
2507 int lines = prev->lineno - prev->offset - prev->height + 1;
2509 /* Scroll the view that was split if the current line is
2510 * outside the new limited view. */
2511 do_scroll_view(prev, lines);
2514 if (prev && view != prev) {
2515 if (split && !backgrounded) {
2516 /* "Blur" the previous view. */
2517 update_view_title(prev);
2520 view->parent = prev;
2523 if (view->pipe && view->lines == 0) {
2524 /* Clear the old view and let the incremental updating refill
2533 /* If the view is backgrounded the above calls to report()
2534 * won't redraw the view title. */
2536 update_view_title(view);
2540 run_confirm(const char *cmd, const char *prompt)
2542 if (prompt_yesno(prompt)) {
2548 open_external_viewer(const char *cmd)
2550 def_prog_mode(); /* save current tty modes */
2551 endwin(); /* restore original tty modes */
2553 fprintf(stderr, "Press Enter to continue");
2560 open_mergetool(const char *file)
2562 char cmd[SIZEOF_STR];
2563 char file_sq[SIZEOF_STR];
2565 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2566 string_format(cmd, "git mergetool %s", file_sq)) {
2567 open_external_viewer(cmd);
2572 open_editor(bool from_root, const char *file)
2574 char cmd[SIZEOF_STR];
2575 char file_sq[SIZEOF_STR];
2577 char *prefix = from_root ? opt_cdup : "";
2579 editor = getenv("GIT_EDITOR");
2580 if (!editor && *opt_editor)
2581 editor = opt_editor;
2583 editor = getenv("VISUAL");
2585 editor = getenv("EDITOR");
2589 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2590 string_format(cmd, "%s %s%s", editor, prefix, file_sq)) {
2591 open_external_viewer(cmd);
2596 open_run_request(enum request request)
2598 struct run_request *req = get_run_request(request);
2599 char buf[SIZEOF_STR * 2];
2604 report("Unknown run request");
2612 char *next = strstr(cmd, "%(");
2613 int len = next - cmd;
2620 } else if (!strncmp(next, "%(head)", 7)) {
2623 } else if (!strncmp(next, "%(commit)", 9)) {
2626 } else if (!strncmp(next, "%(blob)", 7)) {
2630 report("Unknown replacement in run request: `%s`", req->cmd);
2634 if (!string_format_from(buf, &bufpos, "%.*s%s", len, cmd, value))
2638 next = strchr(next, ')') + 1;
2642 open_external_viewer(buf);
2646 * User request switch noodle
2650 view_driver(struct view *view, enum request request)
2654 if (request == REQ_NONE) {
2659 if (request > REQ_NONE) {
2660 open_run_request(request);
2661 /* FIXME: When all views can refresh always do this. */
2662 if (view == VIEW(REQ_VIEW_STATUS) ||
2663 view == VIEW(REQ_VIEW_MAIN) ||
2664 view == VIEW(REQ_VIEW_STAGE))
2665 request = REQ_REFRESH;
2670 if (view && view->lines) {
2671 request = view->ops->request(view, request, &view->line[view->lineno]);
2672 if (request == REQ_NONE)
2679 case REQ_MOVE_PAGE_UP:
2680 case REQ_MOVE_PAGE_DOWN:
2681 case REQ_MOVE_FIRST_LINE:
2682 case REQ_MOVE_LAST_LINE:
2683 move_view(view, request);
2686 case REQ_SCROLL_LINE_DOWN:
2687 case REQ_SCROLL_LINE_UP:
2688 case REQ_SCROLL_PAGE_DOWN:
2689 case REQ_SCROLL_PAGE_UP:
2690 scroll_view(view, request);
2693 case REQ_VIEW_BLAME:
2695 report("No file chosen, press %s to open tree view",
2696 get_key(REQ_VIEW_TREE));
2699 open_view(view, request, OPEN_DEFAULT);
2704 report("No file chosen, press %s to open tree view",
2705 get_key(REQ_VIEW_TREE));
2708 open_view(view, request, OPEN_DEFAULT);
2711 case REQ_VIEW_PAGER:
2712 if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2713 report("No pager content, press %s to run command from prompt",
2714 get_key(REQ_PROMPT));
2717 open_view(view, request, OPEN_DEFAULT);
2720 case REQ_VIEW_STAGE:
2721 if (!VIEW(REQ_VIEW_STAGE)->lines) {
2722 report("No stage content, press %s to open the status view and choose file",
2723 get_key(REQ_VIEW_STATUS));
2726 open_view(view, request, OPEN_DEFAULT);
2729 case REQ_VIEW_STATUS:
2730 if (opt_is_inside_work_tree == FALSE) {
2731 report("The status view requires a working tree");
2734 open_view(view, request, OPEN_DEFAULT);
2742 open_view(view, request, OPEN_DEFAULT);
2747 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2749 if ((view == VIEW(REQ_VIEW_DIFF) &&
2750 view->parent == VIEW(REQ_VIEW_MAIN)) ||
2751 (view == VIEW(REQ_VIEW_DIFF) &&
2752 view->parent == VIEW(REQ_VIEW_BLAME)) ||
2753 (view == VIEW(REQ_VIEW_STAGE) &&
2754 view->parent == VIEW(REQ_VIEW_STATUS)) ||
2755 (view == VIEW(REQ_VIEW_BLOB) &&
2756 view->parent == VIEW(REQ_VIEW_TREE))) {
2759 view = view->parent;
2760 line = view->lineno;
2761 move_view(view, request);
2762 if (view_is_displayed(view))
2763 update_view_title(view);
2764 if (line != view->lineno)
2765 view->ops->request(view, REQ_ENTER,
2766 &view->line[view->lineno]);
2769 move_view(view, request);
2775 int nviews = displayed_views();
2776 int next_view = (current_view + 1) % nviews;
2778 if (next_view == current_view) {
2779 report("Only one view is displayed");
2783 current_view = next_view;
2784 /* Blur out the title of the previous view. */
2785 update_view_title(view);
2790 report("Refreshing is not yet supported for the %s view", view->name);
2794 if (displayed_views() == 2)
2795 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
2798 case REQ_TOGGLE_LINENO:
2799 opt_line_number = !opt_line_number;
2803 case REQ_TOGGLE_DATE:
2804 opt_date = !opt_date;
2808 case REQ_TOGGLE_AUTHOR:
2809 opt_author = !opt_author;
2813 case REQ_TOGGLE_REV_GRAPH:
2814 opt_rev_graph = !opt_rev_graph;
2818 case REQ_TOGGLE_REFS:
2819 opt_show_refs = !opt_show_refs;
2824 case REQ_SEARCH_BACK:
2825 search_view(view, request);
2830 find_next(view, request);
2833 case REQ_STOP_LOADING:
2834 for (i = 0; i < ARRAY_SIZE(views); i++) {
2837 report("Stopped loading the %s view", view->name),
2838 end_update(view, TRUE);
2842 case REQ_SHOW_VERSION:
2843 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
2846 case REQ_SCREEN_RESIZE:
2849 case REQ_SCREEN_REDRAW:
2854 report("Nothing to edit");
2858 report("Nothing to enter");
2861 case REQ_VIEW_CLOSE:
2862 /* XXX: Mark closed views by letting view->parent point to the
2863 * view itself. Parents to closed view should never be
2866 view->parent->parent != view->parent) {
2867 memset(display, 0, sizeof(display));
2869 display[current_view] = view->parent;
2870 view->parent = view;
2880 /* An unknown key will show most commonly used commands. */
2881 report("Unknown key, press 'h' for help");
2894 pager_draw(struct view *view, struct line *line, unsigned int lineno)
2896 char *text = line->data;
2898 if (opt_line_number && draw_lineno(view, lineno))
2901 draw_text(view, line->type, text, TRUE);
2906 add_describe_ref(char *buf, size_t *bufpos, char *commit_id, const char *sep)
2908 char refbuf[SIZEOF_STR];
2912 if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id))
2915 pipe = popen(refbuf, "r");
2919 if ((ref = fgets(refbuf, sizeof(refbuf), pipe)))
2920 ref = chomp_string(ref);
2926 /* This is the only fatal call, since it can "corrupt" the buffer. */
2927 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
2934 add_pager_refs(struct view *view, struct line *line)
2936 char buf[SIZEOF_STR];
2937 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
2939 size_t bufpos = 0, refpos = 0;
2940 const char *sep = "Refs: ";
2941 bool is_tag = FALSE;
2943 assert(line->type == LINE_COMMIT);
2945 refs = get_refs(commit_id);
2947 if (view == VIEW(REQ_VIEW_DIFF))
2948 goto try_add_describe_ref;
2953 struct ref *ref = refs[refpos];
2954 char *fmt = ref->tag ? "%s[%s]" :
2955 ref->remote ? "%s<%s>" : "%s%s";
2957 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
2962 } while (refs[refpos++]->next);
2964 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
2965 try_add_describe_ref:
2966 /* Add <tag>-g<commit_id> "fake" reference. */
2967 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
2974 if (!realloc_lines(view, view->line_size + 1))
2977 add_line_text(view, buf, LINE_PP_REFS);
2981 pager_read(struct view *view, char *data)
2988 line = add_line_text(view, data, get_line_type(data));
2992 if (line->type == LINE_COMMIT &&
2993 (view == VIEW(REQ_VIEW_DIFF) ||
2994 view == VIEW(REQ_VIEW_LOG)))
2995 add_pager_refs(view, line);
3001 pager_request(struct view *view, enum request request, struct line *line)
3005 if (request != REQ_ENTER)
3008 if (line->type == LINE_COMMIT &&
3009 (view == VIEW(REQ_VIEW_LOG) ||
3010 view == VIEW(REQ_VIEW_PAGER))) {
3011 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3015 /* Always scroll the view even if it was split. That way
3016 * you can use Enter to scroll through the log view and
3017 * split open each commit diff. */
3018 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3020 /* FIXME: A minor workaround. Scrolling the view will call report("")
3021 * but if we are scrolling a non-current view this won't properly
3022 * update the view title. */
3024 update_view_title(view);
3030 pager_grep(struct view *view, struct line *line)
3033 char *text = line->data;
3038 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3045 pager_select(struct view *view, struct line *line)
3047 if (line->type == LINE_COMMIT) {
3048 char *text = (char *)line->data + STRING_SIZE("commit ");
3050 if (view != VIEW(REQ_VIEW_PAGER))
3051 string_copy_rev(view->ref, text);
3052 string_copy_rev(ref_commit, text);
3056 static struct view_ops pager_ops = {
3072 help_open(struct view *view)
3075 int lines = ARRAY_SIZE(req_info) + 2;
3078 if (view->lines > 0)
3081 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3082 if (!req_info[i].request)
3085 lines += run_requests + 1;
3087 view->line = calloc(lines, sizeof(*view->line));
3091 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3093 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3096 if (req_info[i].request == REQ_NONE)
3099 if (!req_info[i].request) {
3100 add_line_text(view, "", LINE_DEFAULT);
3101 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3105 key = get_key(req_info[i].request);
3107 key = "(no key defined)";
3109 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
3112 add_line_text(view, buf, LINE_DEFAULT);
3116 add_line_text(view, "", LINE_DEFAULT);
3117 add_line_text(view, "External commands:", LINE_DEFAULT);
3120 for (i = 0; i < run_requests; i++) {
3121 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3127 key = get_key_name(req->key);
3129 key = "(no key defined)";
3131 if (!string_format(buf, " %-10s %-14s `%s`",
3132 keymap_table[req->keymap].name,
3136 add_line_text(view, buf, LINE_DEFAULT);
3142 static struct view_ops help_ops = {
3157 struct tree_stack_entry {
3158 struct tree_stack_entry *prev; /* Entry below this in the stack */
3159 unsigned long lineno; /* Line number to restore */
3160 char *name; /* Position of name in opt_path */
3163 /* The top of the path stack. */
3164 static struct tree_stack_entry *tree_stack = NULL;
3165 unsigned long tree_lineno = 0;
3168 pop_tree_stack_entry(void)
3170 struct tree_stack_entry *entry = tree_stack;
3172 tree_lineno = entry->lineno;
3174 tree_stack = entry->prev;
3179 push_tree_stack_entry(char *name, unsigned long lineno)
3181 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3182 size_t pathlen = strlen(opt_path);
3187 entry->prev = tree_stack;
3188 entry->name = opt_path + pathlen;
3191 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3192 pop_tree_stack_entry();
3196 /* Move the current line to the first tree entry. */
3198 entry->lineno = lineno;
3201 /* Parse output from git-ls-tree(1):
3203 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3204 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3205 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3206 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3209 #define SIZEOF_TREE_ATTR \
3210 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3212 #define TREE_UP_FORMAT "040000 tree %s\t.."
3215 tree_compare_entry(enum line_type type1, char *name1,
3216 enum line_type type2, char *name2)
3218 if (type1 != type2) {
3219 if (type1 == LINE_TREE_DIR)
3224 return strcmp(name1, name2);
3228 tree_path(struct line *line)
3230 char *path = line->data;
3232 return path + SIZEOF_TREE_ATTR;
3236 tree_read(struct view *view, char *text)
3238 size_t textlen = text ? strlen(text) : 0;
3239 char buf[SIZEOF_STR];
3241 enum line_type type;
3242 bool first_read = view->lines == 0;
3246 if (textlen <= SIZEOF_TREE_ATTR)
3249 type = text[STRING_SIZE("100644 ")] == 't'
3250 ? LINE_TREE_DIR : LINE_TREE_FILE;
3253 /* Add path info line */
3254 if (!string_format(buf, "Directory path /%s", opt_path) ||
3255 !realloc_lines(view, view->line_size + 1) ||
3256 !add_line_text(view, buf, LINE_DEFAULT))
3259 /* Insert "link" to parent directory. */
3261 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
3262 !realloc_lines(view, view->line_size + 1) ||
3263 !add_line_text(view, buf, LINE_TREE_DIR))
3268 /* Strip the path part ... */
3270 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3271 size_t striplen = strlen(opt_path);
3272 char *path = text + SIZEOF_TREE_ATTR;
3274 if (pathlen > striplen)
3275 memmove(path, path + striplen,
3276 pathlen - striplen + 1);
3279 /* Skip "Directory ..." and ".." line. */
3280 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
3281 struct line *line = &view->line[pos];
3282 char *path1 = tree_path(line);
3283 char *path2 = text + SIZEOF_TREE_ATTR;
3284 int cmp = tree_compare_entry(line->type, path1, type, path2);
3289 text = strdup(text);
3293 if (view->lines > pos)
3294 memmove(&view->line[pos + 1], &view->line[pos],
3295 (view->lines - pos) * sizeof(*line));
3297 line = &view->line[pos];
3304 if (!add_line_text(view, text, type))
3307 if (tree_lineno > view->lineno) {
3308 view->lineno = tree_lineno;
3316 tree_request(struct view *view, enum request request, struct line *line)
3318 enum open_flags flags;
3320 if (request == REQ_VIEW_BLAME) {
3321 char *filename = tree_path(line);
3323 if (line->type == LINE_TREE_DIR) {
3324 report("Cannot show blame for directory %s", opt_path);
3328 string_copy(opt_ref, view->vid);
3329 string_format(opt_file, "%s%s", opt_path, filename);
3332 if (request == REQ_TREE_PARENT) {
3335 request = REQ_ENTER;
3336 line = &view->line[1];
3338 /* quit view if at top of tree */
3339 return REQ_VIEW_CLOSE;
3342 if (request != REQ_ENTER)
3345 /* Cleanup the stack if the tree view is at a different tree. */
3346 while (!*opt_path && tree_stack)
3347 pop_tree_stack_entry();
3349 switch (line->type) {
3351 /* Depending on whether it is a subdir or parent (updir?) link
3352 * mangle the path buffer. */
3353 if (line == &view->line[1] && *opt_path) {
3354 pop_tree_stack_entry();
3357 char *basename = tree_path(line);
3359 push_tree_stack_entry(basename, view->lineno);
3362 /* Trees and subtrees share the same ID, so they are not not
3363 * unique like blobs. */
3364 flags = OPEN_RELOAD;
3365 request = REQ_VIEW_TREE;
3368 case LINE_TREE_FILE:
3369 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3370 request = REQ_VIEW_BLOB;
3377 open_view(view, request, flags);
3378 if (request == REQ_VIEW_TREE) {
3379 view->lineno = tree_lineno;
3386 tree_select(struct view *view, struct line *line)
3388 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3390 if (line->type == LINE_TREE_FILE) {
3391 string_copy_rev(ref_blob, text);
3393 } else if (line->type != LINE_TREE_DIR) {
3397 string_copy_rev(view->ref, text);
3400 static struct view_ops tree_ops = {
3411 blob_read(struct view *view, char *line)
3415 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3418 static struct view_ops blob_ops = {
3431 * Loading the blame view is a two phase job:
3433 * 1. File content is read either using opt_file from the
3434 * filesystem or using git-cat-file.
3435 * 2. Then blame information is incrementally added by
3436 * reading output from git-blame.
3439 struct blame_commit {
3440 char id[SIZEOF_REV]; /* SHA1 ID. */
3441 char title[128]; /* First line of the commit message. */
3442 char author[75]; /* Author of the commit. */
3443 struct tm time; /* Date from the author ident. */
3444 char filename[128]; /* Name of file. */
3448 struct blame_commit *commit;
3449 unsigned int header:1;
3453 #define BLAME_CAT_FILE_CMD "git cat-file blob %s:%s"
3454 #define BLAME_INCREMENTAL_CMD "git blame --incremental %s %s"
3457 blame_open(struct view *view)
3459 char path[SIZEOF_STR];
3460 char ref[SIZEOF_STR] = "";
3462 if (sq_quote(path, 0, opt_file) >= sizeof(path))
3465 if (*opt_ref && sq_quote(ref, 0, opt_ref) >= sizeof(ref))
3469 if (!string_format(view->cmd, BLAME_CAT_FILE_CMD, ref, path))
3472 view->pipe = fopen(opt_file, "r");
3474 !string_format(view->cmd, BLAME_CAT_FILE_CMD, "HEAD", path))
3479 view->pipe = popen(view->cmd, "r");
3483 if (!string_format(view->cmd, BLAME_INCREMENTAL_CMD, ref, path))
3486 string_format(view->ref, "%s ...", opt_file);
3487 string_copy_rev(view->vid, opt_file);
3488 set_nonblocking_input(TRUE);
3493 for (i = 0; i < view->lines; i++)
3494 free(view->line[i].data);
3498 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
3499 view->offset = view->lines = view->lineno = 0;
3501 view->start_time = time(NULL);
3506 static struct blame_commit *
3507 get_blame_commit(struct view *view, const char *id)
3511 for (i = 0; i < view->lines; i++) {
3512 struct blame *blame = view->line[i].data;
3517 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3518 return blame->commit;
3522 struct blame_commit *commit = calloc(1, sizeof(*commit));
3525 string_ncopy(commit->id, id, SIZEOF_REV);
3531 parse_number(char **posref, size_t *number, size_t min, size_t max)
3533 char *pos = *posref;
3536 pos = strchr(pos + 1, ' ');
3537 if (!pos || !isdigit(pos[1]))
3539 *number = atoi(pos + 1);
3540 if (*number < min || *number > max)
3547 static struct blame_commit *
3548 parse_blame_commit(struct view *view, char *text, int *blamed)
3550 struct blame_commit *commit;
3551 struct blame *blame;
3552 char *pos = text + SIZEOF_REV - 1;
3556 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3559 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3560 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3563 commit = get_blame_commit(view, text);
3569 struct line *line = &view->line[lineno + group - 1];
3572 blame->commit = commit;
3573 blame->header = !group;
3581 blame_read_file(struct view *view, char *line)
3586 if (view->lines > 0)
3587 pipe = popen(view->cmd, "r");
3588 else if (!view->parent)
3589 die("No blame exist for %s", view->vid);
3592 report("Failed to load blame data");
3601 size_t linelen = strlen(line);
3602 struct blame *blame = malloc(sizeof(*blame) + linelen);
3604 blame->commit = NULL;
3605 strncpy(blame->text, line, linelen);
3606 blame->text[linelen] = 0;
3607 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3612 match_blame_header(const char *name, char **line)
3614 size_t namelen = strlen(name);
3615 bool matched = !strncmp(name, *line, namelen);
3624 blame_read(struct view *view, char *line)
3626 static struct blame_commit *commit = NULL;
3627 static int blamed = 0;
3628 static time_t author_time;
3631 return blame_read_file(view, line);
3637 string_format(view->ref, "%s", view->vid);
3638 if (view_is_displayed(view)) {
3639 update_view_title(view);
3640 redraw_view_from(view, 0);
3646 commit = parse_blame_commit(view, line, &blamed);
3647 string_format(view->ref, "%s %2d%%", view->vid,
3648 blamed * 100 / view->lines);
3650 } else if (match_blame_header("author ", &line)) {
3651 string_ncopy(commit->author, line, strlen(line));
3653 } else if (match_blame_header("author-time ", &line)) {
3654 author_time = (time_t) atol(line);
3656 } else if (match_blame_header("author-tz ", &line)) {
3659 tz = ('0' - line[1]) * 60 * 60 * 10;
3660 tz += ('0' - line[2]) * 60 * 60;
3661 tz += ('0' - line[3]) * 60;
3662 tz += ('0' - line[4]) * 60;
3668 gmtime_r(&author_time, &commit->time);
3670 } else if (match_blame_header("summary ", &line)) {
3671 string_ncopy(commit->title, line, strlen(line));
3673 } else if (match_blame_header("filename ", &line)) {
3674 string_ncopy(commit->filename, line, strlen(line));
3682 blame_draw(struct view *view, struct line *line, unsigned int lineno)
3684 struct blame *blame = line->data;
3685 struct tm *time = NULL;
3686 char *id = NULL, *author = NULL;
3688 if (blame->commit && *blame->commit->filename) {
3689 id = blame->commit->id;
3690 author = blame->commit->author;
3691 time = &blame->commit->time;
3694 if (opt_date && draw_date(view, time))
3698 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
3701 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
3704 if (draw_lineno(view, lineno))
3707 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
3712 blame_request(struct view *view, enum request request, struct line *line)
3714 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3715 struct blame *blame = line->data;
3719 if (!blame->commit) {
3720 report("No commit loaded yet");
3724 if (!strcmp(blame->commit->id, NULL_ID)) {
3725 char path[SIZEOF_STR];
3727 if (sq_quote(path, 0, view->vid) >= sizeof(path))
3729 string_format(opt_cmd, "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s 2>/dev/null", path);
3732 open_view(view, REQ_VIEW_DIFF, flags);
3743 blame_grep(struct view *view, struct line *line)
3745 struct blame *blame = line->data;
3746 struct blame_commit *commit = blame->commit;
3749 #define MATCH(text, on) \
3750 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3753 char buf[DATE_COLS + 1];
3755 if (MATCH(commit->title, 1) ||
3756 MATCH(commit->author, opt_author) ||
3757 MATCH(commit->id, opt_date))
3760 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
3765 return MATCH(blame->text, 1);
3771 blame_select(struct view *view, struct line *line)
3773 struct blame *blame = line->data;
3774 struct blame_commit *commit = blame->commit;
3779 if (!strcmp(commit->id, NULL_ID))
3780 string_ncopy(ref_commit, "HEAD", 4);
3782 string_copy_rev(ref_commit, commit->id);
3785 static struct view_ops blame_ops = {
3803 char rev[SIZEOF_REV];
3804 char name[SIZEOF_STR];
3808 char rev[SIZEOF_REV];
3809 char name[SIZEOF_STR];
3813 static char status_onbranch[SIZEOF_STR];
3814 static struct status stage_status;
3815 static enum line_type stage_line_type;
3816 static size_t stage_chunks;
3817 static int *stage_chunk;
3819 /* Get fields from the diff line:
3820 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3823 status_get_diff(struct status *file, char *buf, size_t bufsize)
3825 char *old_mode = buf + 1;
3826 char *new_mode = buf + 8;
3827 char *old_rev = buf + 15;
3828 char *new_rev = buf + 56;
3829 char *status = buf + 97;
3832 old_mode[-1] != ':' ||
3833 new_mode[-1] != ' ' ||
3834 old_rev[-1] != ' ' ||
3835 new_rev[-1] != ' ' ||
3839 file->status = *status;
3841 string_copy_rev(file->old.rev, old_rev);
3842 string_copy_rev(file->new.rev, new_rev);
3844 file->old.mode = strtoul(old_mode, NULL, 8);
3845 file->new.mode = strtoul(new_mode, NULL, 8);
3847 file->old.name[0] = file->new.name[0] = 0;
3853 status_run(struct view *view, const char cmd[], char status, enum line_type type)
3855 struct status *file = NULL;
3856 struct status *unmerged = NULL;
3857 char buf[SIZEOF_STR * 4];
3861 pipe = popen(cmd, "r");
3865 add_line_data(view, NULL, type);
3867 while (!feof(pipe) && !ferror(pipe)) {
3871 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3874 bufsize += readsize;
3876 /* Process while we have NUL chars. */
3877 while ((sep = memchr(buf, 0, bufsize))) {
3878 size_t sepsize = sep - buf + 1;
3881 if (!realloc_lines(view, view->line_size + 1))
3884 file = calloc(1, sizeof(*file));
3888 add_line_data(view, file, type);
3891 /* Parse diff info part. */
3893 file->status = status;
3895 string_copy(file->old.rev, NULL_ID);
3897 } else if (!file->status) {
3898 if (!status_get_diff(file, buf, sepsize))
3902 memmove(buf, sep + 1, bufsize);
3904 sep = memchr(buf, 0, bufsize);
3907 sepsize = sep - buf + 1;
3909 /* Collapse all 'M'odified entries that
3910 * follow a associated 'U'nmerged entry.
3912 if (file->status == 'U') {
3915 } else if (unmerged) {
3916 int collapse = !strcmp(buf, unmerged->new.name);
3927 /* Grab the old name for rename/copy. */
3928 if (!*file->old.name &&
3929 (file->status == 'R' || file->status == 'C')) {
3930 sepsize = sep - buf + 1;
3931 string_ncopy(file->old.name, buf, sepsize);
3933 memmove(buf, sep + 1, bufsize);
3935 sep = memchr(buf, 0, bufsize);
3938 sepsize = sep - buf + 1;
3941 /* git-ls-files just delivers a NUL separated
3942 * list of file names similar to the second half
3943 * of the git-diff-* output. */
3944 string_ncopy(file->new.name, buf, sepsize);
3945 if (!*file->old.name)
3946 string_copy(file->old.name, file->new.name);
3948 memmove(buf, sep + 1, bufsize);
3959 if (!view->line[view->lines - 1].data)
3960 add_line_data(view, NULL, LINE_STAT_NONE);
3966 /* Don't show unmerged entries in the staged section. */
3967 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD"
3968 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
3969 #define STATUS_LIST_OTHER_CMD \
3970 "git ls-files -z --others --exclude-per-directory=.gitignore"
3971 #define STATUS_LIST_NO_HEAD_CMD \
3972 "git ls-files -z --cached --exclude-per-directory=.gitignore"
3974 #define STATUS_DIFF_INDEX_SHOW_CMD \
3975 "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null"
3977 #define STATUS_DIFF_FILES_SHOW_CMD \
3978 "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null"
3980 #define STATUS_DIFF_NO_HEAD_SHOW_CMD \
3981 "git diff --no-color --patch-with-stat /dev/null %s 2>/dev/null"
3983 /* First parse staged info using git-diff-index(1), then parse unstaged
3984 * info using git-diff-files(1), and finally untracked files using
3985 * git-ls-files(1). */
3987 status_open(struct view *view)
3989 struct stat statbuf;
3990 char exclude[SIZEOF_STR];
3991 char indexcmd[SIZEOF_STR] = STATUS_DIFF_INDEX_CMD;
3992 char othercmd[SIZEOF_STR] = STATUS_LIST_OTHER_CMD;
3993 unsigned long prev_lineno = view->lineno;
3994 char indexstatus = 0;
3997 for (i = 0; i < view->lines; i++)
3998 free(view->line[i].data);
4000 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
4003 if (!realloc_lines(view, view->line_size + 7))
4006 add_line_data(view, NULL, LINE_STAT_HEAD);
4008 string_copy(status_onbranch, "Initial commit");
4009 else if (!*opt_head)
4010 string_copy(status_onbranch, "Not currently on any branch");
4011 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4015 string_copy(indexcmd, STATUS_LIST_NO_HEAD_CMD);
4019 if (!string_format(exclude, "%s/info/exclude", opt_git_dir))
4022 if (stat(exclude, &statbuf) >= 0) {
4023 size_t cmdsize = strlen(othercmd);
4025 if (!string_format_from(othercmd, &cmdsize, " %s", "--exclude-from=") ||
4026 sq_quote(othercmd, cmdsize, exclude) >= sizeof(othercmd))
4029 cmdsize = strlen(indexcmd);
4031 (!string_format_from(indexcmd, &cmdsize, " %s", "--exclude-from=") ||
4032 sq_quote(indexcmd, cmdsize, exclude) >= sizeof(indexcmd)))
4036 system("git update-index -q --refresh >/dev/null 2>/dev/null");
4038 if (!status_run(view, indexcmd, indexstatus, LINE_STAT_STAGED) ||
4039 !status_run(view, STATUS_DIFF_FILES_CMD, 0, LINE_STAT_UNSTAGED) ||
4040 !status_run(view, othercmd, '?', LINE_STAT_UNTRACKED))
4043 /* If all went well restore the previous line number to stay in
4044 * the context or select a line with something that can be
4046 if (prev_lineno >= view->lines)
4047 prev_lineno = view->lines - 1;
4048 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4050 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4053 /* If the above fails, always skip the "On branch" line. */
4054 if (prev_lineno < view->lines)
4055 view->lineno = prev_lineno;
4059 if (view->lineno < view->offset)
4060 view->offset = view->lineno;
4061 else if (view->offset + view->height <= view->lineno)
4062 view->offset = view->lineno - view->height + 1;
4068 status_draw(struct view *view, struct line *line, unsigned int lineno)
4070 struct status *status = line->data;
4071 enum line_type type;
4075 switch (line->type) {
4076 case LINE_STAT_STAGED:
4077 type = LINE_STAT_SECTION;
4078 text = "Changes to be committed:";
4081 case LINE_STAT_UNSTAGED:
4082 type = LINE_STAT_SECTION;
4083 text = "Changed but not updated:";
4086 case LINE_STAT_UNTRACKED:
4087 type = LINE_STAT_SECTION;
4088 text = "Untracked files:";
4091 case LINE_STAT_NONE:
4092 type = LINE_DEFAULT;
4093 text = " (no files)";
4096 case LINE_STAT_HEAD:
4097 type = LINE_STAT_HEAD;
4098 text = status_onbranch;
4105 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4107 buf[0] = status->status;
4108 if (draw_text(view, line->type, buf, TRUE))
4110 type = LINE_DEFAULT;
4111 text = status->new.name;
4114 draw_text(view, type, text, TRUE);
4119 status_enter(struct view *view, struct line *line)
4121 struct status *status = line->data;
4122 char oldpath[SIZEOF_STR] = "";
4123 char newpath[SIZEOF_STR] = "";
4126 enum open_flags split;
4128 if (line->type == LINE_STAT_NONE ||
4129 (!status && line[1].type == LINE_STAT_NONE)) {
4130 report("No file to diff");
4135 if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath))
4137 /* Diffs for unmerged entries are empty when pasing the
4138 * new path, so leave it empty. */
4139 if (status->status != 'U' &&
4140 sq_quote(newpath, 0, status->new.name) >= sizeof(newpath))
4145 line->type != LINE_STAT_UNTRACKED &&
4146 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
4149 switch (line->type) {
4150 case LINE_STAT_STAGED:
4152 if (!string_format_from(opt_cmd, &cmdsize,
4153 STATUS_DIFF_NO_HEAD_SHOW_CMD,
4157 if (!string_format_from(opt_cmd, &cmdsize,
4158 STATUS_DIFF_INDEX_SHOW_CMD,
4164 info = "Staged changes to %s";
4166 info = "Staged changes";
4169 case LINE_STAT_UNSTAGED:
4170 if (!string_format_from(opt_cmd, &cmdsize,
4171 STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath))
4174 info = "Unstaged changes to %s";
4176 info = "Unstaged changes";
4179 case LINE_STAT_UNTRACKED:
4184 report("No file to show");
4188 opt_pipe = fopen(status->new.name, "r");
4189 info = "Untracked file %s";
4192 case LINE_STAT_HEAD:
4196 die("line type %d not handled in switch", line->type);
4199 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4200 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | split);
4201 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4203 stage_status = *status;
4205 memset(&stage_status, 0, sizeof(stage_status));
4208 stage_line_type = line->type;
4210 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4217 status_exists(struct status *status, enum line_type type)
4219 struct view *view = VIEW(REQ_VIEW_STATUS);
4222 for (line = view->line; line < view->line + view->lines; line++) {
4223 struct status *pos = line->data;
4225 if (line->type == type && pos &&
4226 !strcmp(status->new.name, pos->new.name))
4235 status_update_prepare(enum line_type type)
4237 char cmd[SIZEOF_STR];
4241 type != LINE_STAT_UNTRACKED &&
4242 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4246 case LINE_STAT_STAGED:
4247 string_add(cmd, cmdsize, "git update-index -z --index-info");
4250 case LINE_STAT_UNSTAGED:
4251 case LINE_STAT_UNTRACKED:
4252 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
4256 die("line type %d not handled in switch", type);
4259 return popen(cmd, "w");
4263 status_update_write(FILE *pipe, struct status *status, enum line_type type)
4265 char buf[SIZEOF_STR];
4270 case LINE_STAT_STAGED:
4271 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4274 status->old.name, 0))
4278 case LINE_STAT_UNSTAGED:
4279 case LINE_STAT_UNTRACKED:
4280 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4285 die("line type %d not handled in switch", type);
4288 while (!ferror(pipe) && written < bufsize) {
4289 written += fwrite(buf + written, 1, bufsize - written, pipe);
4292 return written == bufsize;
4296 status_update_file(struct status *status, enum line_type type)
4298 FILE *pipe = status_update_prepare(type);
4304 result = status_update_write(pipe, status, type);
4310 status_update_files(struct view *view, struct line *line)
4312 FILE *pipe = status_update_prepare(line->type);
4314 struct line *pos = view->line + view->lines;
4321 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4324 for (file = 0, done = 0; result && file < files; line++, file++) {
4325 int almost_done = file * 100 / files;
4327 if (almost_done > done) {
4329 string_format(view->ref, "updating file %u of %u (%d%% done)",
4331 update_view_title(view);
4333 result = status_update_write(pipe, line->data, line->type);
4341 status_update(struct view *view)
4343 struct line *line = &view->line[view->lineno];
4345 assert(view->lines);
4348 /* This should work even for the "On branch" line. */
4349 if (line < view->line + view->lines && !line[1].data) {
4350 report("Nothing to update");
4354 if (!status_update_files(view, line + 1)) {
4355 report("Failed to update file status");
4359 } else if (!status_update_file(line->data, line->type)) {
4360 report("Failed to update file status");
4368 status_checkout(struct view *view)
4370 struct line *line = &view->line[view->lineno];
4372 assert(view->lines);
4374 if (!line->data || line->type != LINE_STAT_UNSTAGED) {
4375 /* This should work even for the "On branch" line. */
4376 if (line < view->line + view->lines && !line[1].data) {
4377 report("Nothing to checkout");
4378 } else if (line->type == LINE_STAT_UNTRACKED) {
4379 report("Cannot checkout untracked files");
4380 } else if (line->type == LINE_STAT_STAGED) {
4381 report("Cannot checkout staged files");
4383 report("Cannot checkout multiple files");
4388 struct status *status = line->data;
4389 char cmd[SIZEOF_STR];
4390 char file_sq[SIZEOF_STR];
4392 if (sq_quote(file_sq, 0, status->old.name) < sizeof(file_sq) &&
4393 string_format(cmd, "git checkout %s%s", opt_cdup, file_sq)) {
4394 run_confirm(cmd, "Are you sure you want to overwrite any changes?");
4402 status_request(struct view *view, enum request request, struct line *line)
4404 struct status *status = line->data;
4407 case REQ_STATUS_UPDATE:
4408 if (!status_update(view))
4412 case REQ_STATUS_CHECKOUT:
4413 if (!status_checkout(view))
4417 case REQ_STATUS_MERGE:
4418 if (!status || status->status != 'U') {
4419 report("Merging only possible for files with unmerged status ('U').");
4422 open_mergetool(status->new.name);
4429 open_editor(status->status != '?', status->new.name);
4432 case REQ_VIEW_BLAME:
4434 string_copy(opt_file, status->new.name);
4440 /* After returning the status view has been split to
4441 * show the stage view. No further reloading is
4443 status_enter(view, line);
4447 /* Simply reload the view. */
4454 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4460 status_select(struct view *view, struct line *line)
4462 struct status *status = line->data;
4463 char file[SIZEOF_STR] = "all files";
4467 if (status && !string_format(file, "'%s'", status->new.name))
4470 if (!status && line[1].type == LINE_STAT_NONE)
4473 switch (line->type) {
4474 case LINE_STAT_STAGED:
4475 text = "Press %s to unstage %s for commit";
4478 case LINE_STAT_UNSTAGED:
4479 text = "Press %s to stage %s for commit";
4482 case LINE_STAT_UNTRACKED:
4483 text = "Press %s to stage %s for addition";
4486 case LINE_STAT_HEAD:
4487 case LINE_STAT_NONE:
4488 text = "Nothing to update";
4492 die("line type %d not handled in switch", line->type);
4495 if (status && status->status == 'U') {
4496 text = "Press %s to resolve conflict in %s";
4497 key = get_key(REQ_STATUS_MERGE);
4500 key = get_key(REQ_STATUS_UPDATE);
4503 string_format(view->ref, text, key, file);
4507 status_grep(struct view *view, struct line *line)
4509 struct status *status = line->data;
4510 enum { S_STATUS, S_NAME, S_END } state;
4517 for (state = S_STATUS; state < S_END; state++) {
4521 case S_NAME: text = status->new.name; break;
4523 buf[0] = status->status;
4531 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4538 static struct view_ops status_ops = {
4550 stage_diff_line(FILE *pipe, struct line *line)
4552 char *buf = line->data;
4553 size_t bufsize = strlen(buf);
4556 while (!ferror(pipe) && written < bufsize) {
4557 written += fwrite(buf + written, 1, bufsize - written, pipe);
4562 return written == bufsize;
4566 stage_diff_write(FILE *pipe, struct line *line, struct line *end)
4568 while (line < end) {
4569 if (!stage_diff_line(pipe, line++))
4571 if (line->type == LINE_DIFF_CHUNK ||
4572 line->type == LINE_DIFF_HEADER)
4579 static struct line *
4580 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4582 for (; view->line < line; line--)
4583 if (line->type == type)
4590 stage_update_chunk(struct view *view, struct line *chunk)
4592 char cmd[SIZEOF_STR];
4594 struct line *diff_hdr;
4597 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4602 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4605 if (!string_format_from(cmd, &cmdsize,
4606 "git apply --whitespace=nowarn --cached %s - && "
4607 "git update-index -q --unmerged --refresh 2>/dev/null",
4608 stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
4611 pipe = popen(cmd, "w");
4615 if (!stage_diff_write(pipe, diff_hdr, chunk) ||
4616 !stage_diff_write(pipe, chunk, view->line + view->lines))
4621 return chunk ? TRUE : FALSE;
4625 stage_update(struct view *view, struct line *line)
4627 struct line *chunk = NULL;
4629 if (!opt_no_head && stage_line_type != LINE_STAT_UNTRACKED)
4630 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4633 if (!stage_update_chunk(view, chunk)) {
4634 report("Failed to apply chunk");
4638 } else if (!stage_status.status) {
4639 view = VIEW(REQ_VIEW_STATUS);
4641 for (line = view->line; line < view->line + view->lines; line++)
4642 if (line->type == stage_line_type)
4645 if (!status_update_files(view, line + 1)) {
4646 report("Failed to update files");
4650 } else if (!status_update_file(&stage_status, stage_line_type)) {
4651 report("Failed to update file");
4659 stage_next(struct view *view, struct line *line)
4663 if (!stage_chunks) {
4664 static size_t alloc = 0;
4667 for (line = view->line; line < view->line + view->lines; line++) {
4668 if (line->type != LINE_DIFF_CHUNK)
4671 tmp = realloc_items(stage_chunk, &alloc,
4672 stage_chunks, sizeof(*tmp));
4674 report("Allocation failure");
4679 stage_chunk[stage_chunks++] = line - view->line;
4683 for (i = 0; i < stage_chunks; i++) {
4684 if (stage_chunk[i] > view->lineno) {
4685 do_scroll_view(view, stage_chunk[i] - view->lineno);
4686 report("Chunk %d of %d", i + 1, stage_chunks);
4691 report("No next chunk found");
4695 stage_request(struct view *view, enum request request, struct line *line)
4698 case REQ_STATUS_UPDATE:
4699 if (!stage_update(view, line))
4703 case REQ_STAGE_NEXT:
4704 if (stage_line_type == LINE_STAT_UNTRACKED) {
4705 report("File is untracked; press %s to add",
4706 get_key(REQ_STATUS_UPDATE));
4709 stage_next(view, line);
4713 if (!stage_status.new.name[0])
4716 open_editor(stage_status.status != '?', stage_status.new.name);
4720 /* Reload everything ... */
4723 case REQ_VIEW_BLAME:
4724 if (stage_status.new.name[0]) {
4725 string_copy(opt_file, stage_status.new.name);
4731 return pager_request(view, request, line);
4737 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4739 /* Check whether the staged entry still exists, and close the
4740 * stage view if it doesn't. */
4741 if (!status_exists(&stage_status, stage_line_type))
4742 return REQ_VIEW_CLOSE;
4744 if (stage_line_type == LINE_STAT_UNTRACKED)
4745 opt_pipe = fopen(stage_status.new.name, "r");
4747 string_copy(opt_cmd, view->cmd);
4748 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4753 static struct view_ops stage_ops = {
4769 char id[SIZEOF_REV]; /* SHA1 ID. */
4770 char title[128]; /* First line of the commit message. */
4771 char author[75]; /* Author of the commit. */
4772 struct tm time; /* Date from the author ident. */
4773 struct ref **refs; /* Repository references. */
4774 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
4775 size_t graph_size; /* The width of the graph array. */
4776 bool has_parents; /* Rewritten --parents seen. */
4779 /* Size of rev graph with no "padding" columns */
4780 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
4783 struct rev_graph *prev, *next, *parents;
4784 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
4786 struct commit *commit;
4788 unsigned int boundary:1;
4791 /* Parents of the commit being visualized. */
4792 static struct rev_graph graph_parents[4];
4794 /* The current stack of revisions on the graph. */
4795 static struct rev_graph graph_stacks[4] = {
4796 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
4797 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
4798 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
4799 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
4803 graph_parent_is_merge(struct rev_graph *graph)
4805 return graph->parents->size > 1;
4809 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
4811 struct commit *commit = graph->commit;
4813 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
4814 commit->graph[commit->graph_size++] = symbol;
4818 clear_rev_graph(struct rev_graph *graph)
4820 graph->boundary = 0;
4821 graph->size = graph->pos = 0;
4822 graph->commit = NULL;
4823 memset(graph->parents, 0, sizeof(*graph->parents));
4827 done_rev_graph(struct rev_graph *graph)
4829 if (graph_parent_is_merge(graph) &&
4830 graph->pos < graph->size - 1 &&
4831 graph->next->size == graph->size + graph->parents->size - 1) {
4832 size_t i = graph->pos + graph->parents->size - 1;
4834 graph->commit->graph_size = i * 2;
4835 while (i < graph->next->size - 1) {
4836 append_to_rev_graph(graph, ' ');
4837 append_to_rev_graph(graph, '\\');
4842 clear_rev_graph(graph);
4846 push_rev_graph(struct rev_graph *graph, char *parent)
4850 /* "Collapse" duplicate parents lines.
4852 * FIXME: This needs to also update update the drawn graph but
4853 * for now it just serves as a method for pruning graph lines. */
4854 for (i = 0; i < graph->size; i++)
4855 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
4858 if (graph->size < SIZEOF_REVITEMS) {
4859 string_copy_rev(graph->rev[graph->size++], parent);
4864 get_rev_graph_symbol(struct rev_graph *graph)
4868 if (graph->boundary)
4869 symbol = REVGRAPH_BOUND;
4870 else if (graph->parents->size == 0)
4871 symbol = REVGRAPH_INIT;
4872 else if (graph_parent_is_merge(graph))
4873 symbol = REVGRAPH_MERGE;
4874 else if (graph->pos >= graph->size)
4875 symbol = REVGRAPH_BRANCH;
4877 symbol = REVGRAPH_COMMIT;
4883 draw_rev_graph(struct rev_graph *graph)
4886 chtype separator, line;
4888 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
4889 static struct rev_filler fillers[] = {
4895 chtype symbol = get_rev_graph_symbol(graph);
4896 struct rev_filler *filler;
4899 if (opt_line_graphics)
4900 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
4902 filler = &fillers[DEFAULT];
4904 for (i = 0; i < graph->pos; i++) {
4905 append_to_rev_graph(graph, filler->line);
4906 if (graph_parent_is_merge(graph->prev) &&
4907 graph->prev->pos == i)
4908 filler = &fillers[RSHARP];
4910 append_to_rev_graph(graph, filler->separator);
4913 /* Place the symbol for this revision. */
4914 append_to_rev_graph(graph, symbol);
4916 if (graph->prev->size > graph->size)
4917 filler = &fillers[RDIAG];
4919 filler = &fillers[DEFAULT];
4923 for (; i < graph->size; i++) {
4924 append_to_rev_graph(graph, filler->separator);
4925 append_to_rev_graph(graph, filler->line);
4926 if (graph_parent_is_merge(graph->prev) &&
4927 i < graph->prev->pos + graph->parents->size)
4928 filler = &fillers[RSHARP];
4929 if (graph->prev->size > graph->size)
4930 filler = &fillers[LDIAG];
4933 if (graph->prev->size > graph->size) {
4934 append_to_rev_graph(graph, filler->separator);
4935 if (filler->line != ' ')
4936 append_to_rev_graph(graph, filler->line);
4940 /* Prepare the next rev graph */
4942 prepare_rev_graph(struct rev_graph *graph)
4946 /* First, traverse all lines of revisions up to the active one. */
4947 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
4948 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
4951 push_rev_graph(graph->next, graph->rev[graph->pos]);
4954 /* Interleave the new revision parent(s). */
4955 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
4956 push_rev_graph(graph->next, graph->parents->rev[i]);
4958 /* Lastly, put any remaining revisions. */
4959 for (i = graph->pos + 1; i < graph->size; i++)
4960 push_rev_graph(graph->next, graph->rev[i]);
4964 update_rev_graph(struct rev_graph *graph)
4966 /* If this is the finalizing update ... */
4968 prepare_rev_graph(graph);
4970 /* Graph visualization needs a one rev look-ahead,
4971 * so the first update doesn't visualize anything. */
4972 if (!graph->prev->commit)
4975 draw_rev_graph(graph->prev);
4976 done_rev_graph(graph->prev->prev);
4985 main_draw(struct view *view, struct line *line, unsigned int lineno)
4987 struct commit *commit = line->data;
4989 if (!*commit->author)
4992 if (opt_date && draw_date(view, &commit->time))
4996 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
4999 if (opt_rev_graph && commit->graph_size &&
5000 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5003 if (opt_show_refs && commit->refs) {
5007 enum line_type type;
5009 if (commit->refs[i]->head)
5010 type = LINE_MAIN_HEAD;
5011 else if (commit->refs[i]->ltag)
5012 type = LINE_MAIN_LOCAL_TAG;
5013 else if (commit->refs[i]->tag)
5014 type = LINE_MAIN_TAG;
5015 else if (commit->refs[i]->tracked)
5016 type = LINE_MAIN_TRACKED;
5017 else if (commit->refs[i]->remote)
5018 type = LINE_MAIN_REMOTE;
5020 type = LINE_MAIN_REF;
5022 if (draw_text(view, type, "[", TRUE) ||
5023 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5024 draw_text(view, type, "]", TRUE))
5027 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5029 } while (commit->refs[i++]->next);
5032 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5036 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5038 main_read(struct view *view, char *line)
5040 static struct rev_graph *graph = graph_stacks;
5041 enum line_type type;
5042 struct commit *commit;
5047 if (!view->lines && !view->parent)
5048 die("No revisions match the given arguments.");
5049 if (view->lines > 0) {
5050 commit = view->line[view->lines - 1].data;
5051 if (!*commit->author) {
5054 graph->commit = NULL;
5057 update_rev_graph(graph);
5059 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5060 clear_rev_graph(&graph_stacks[i]);
5064 type = get_line_type(line);
5065 if (type == LINE_COMMIT) {
5066 commit = calloc(1, sizeof(struct commit));
5070 line += STRING_SIZE("commit ");
5072 graph->boundary = 1;
5076 string_copy_rev(commit->id, line);
5077 commit->refs = get_refs(commit->id);
5078 graph->commit = commit;
5079 add_line_data(view, commit, LINE_MAIN_COMMIT);
5081 while ((line = strchr(line, ' '))) {
5083 push_rev_graph(graph->parents, line);
5084 commit->has_parents = TRUE;
5091 commit = view->line[view->lines - 1].data;
5095 if (commit->has_parents)
5097 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5102 /* Parse author lines where the name may be empty:
5103 * author <email@address.tld> 1138474660 +0100
5105 char *ident = line + STRING_SIZE("author ");
5106 char *nameend = strchr(ident, '<');
5107 char *emailend = strchr(ident, '>');
5109 if (!nameend || !emailend)
5112 update_rev_graph(graph);
5113 graph = graph->next;
5115 *nameend = *emailend = 0;
5116 ident = chomp_string(ident);
5118 ident = chomp_string(nameend + 1);
5123 string_ncopy(commit->author, ident, strlen(ident));
5125 /* Parse epoch and timezone */
5126 if (emailend[1] == ' ') {
5127 char *secs = emailend + 2;
5128 char *zone = strchr(secs, ' ');
5129 time_t time = (time_t) atol(secs);
5131 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5135 tz = ('0' - zone[1]) * 60 * 60 * 10;
5136 tz += ('0' - zone[2]) * 60 * 60;
5137 tz += ('0' - zone[3]) * 60;
5138 tz += ('0' - zone[4]) * 60;
5146 gmtime_r(&time, &commit->time);
5151 /* Fill in the commit title if it has not already been set. */
5152 if (commit->title[0])
5155 /* Require titles to start with a non-space character at the
5156 * offset used by git log. */
5157 if (strncmp(line, " ", 4))
5160 /* Well, if the title starts with a whitespace character,
5161 * try to be forgiving. Otherwise we end up with no title. */
5162 while (isspace(*line))
5166 /* FIXME: More graceful handling of titles; append "..." to
5167 * shortened titles, etc. */
5169 string_ncopy(commit->title, line, strlen(line));
5176 main_request(struct view *view, enum request request, struct line *line)
5178 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5182 open_view(view, REQ_VIEW_DIFF, flags);
5185 string_copy(opt_cmd, view->cmd);
5186 open_view(view, REQ_VIEW_MAIN, OPEN_RELOAD);
5196 grep_refs(struct ref **refs, regex_t *regex)
5204 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5206 } while (refs[i++]->next);
5212 main_grep(struct view *view, struct line *line)
5214 struct commit *commit = line->data;
5215 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5216 char buf[DATE_COLS + 1];
5219 for (state = S_TITLE; state < S_END; state++) {
5223 case S_TITLE: text = commit->title; break;
5227 text = commit->author;
5232 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5239 if (grep_refs(commit->refs, view->regex) == TRUE)
5246 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5254 main_select(struct view *view, struct line *line)
5256 struct commit *commit = line->data;
5258 string_copy_rev(view->ref, commit->id);
5259 string_copy_rev(ref_commit, view->ref);
5262 static struct view_ops main_ops = {
5274 * Unicode / UTF-8 handling
5276 * NOTE: Much of the following code for dealing with unicode is derived from
5277 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5278 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5281 /* I've (over)annotated a lot of code snippets because I am not entirely
5282 * confident that the approach taken by this small UTF-8 interface is correct.
5286 unicode_width(unsigned long c)
5289 (c <= 0x115f /* Hangul Jamo */
5292 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5294 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5295 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5296 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5297 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5298 || (c >= 0xffe0 && c <= 0xffe6)
5299 || (c >= 0x20000 && c <= 0x2fffd)
5300 || (c >= 0x30000 && c <= 0x3fffd)))
5304 return opt_tab_size;
5309 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5310 * Illegal bytes are set one. */
5311 static const unsigned char utf8_bytes[256] = {
5312 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5313 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5314 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5315 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,
5316 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,
5317 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,
5318 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,
5319 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,
5322 /* Decode UTF-8 multi-byte representation into a unicode character. */
5323 static inline unsigned long
5324 utf8_to_unicode(const char *string, size_t length)
5326 unsigned long unicode;
5330 unicode = string[0];
5333 unicode = (string[0] & 0x1f) << 6;
5334 unicode += (string[1] & 0x3f);
5337 unicode = (string[0] & 0x0f) << 12;
5338 unicode += ((string[1] & 0x3f) << 6);
5339 unicode += (string[2] & 0x3f);
5342 unicode = (string[0] & 0x0f) << 18;
5343 unicode += ((string[1] & 0x3f) << 12);
5344 unicode += ((string[2] & 0x3f) << 6);
5345 unicode += (string[3] & 0x3f);
5348 unicode = (string[0] & 0x0f) << 24;
5349 unicode += ((string[1] & 0x3f) << 18);
5350 unicode += ((string[2] & 0x3f) << 12);
5351 unicode += ((string[3] & 0x3f) << 6);
5352 unicode += (string[4] & 0x3f);
5355 unicode = (string[0] & 0x01) << 30;
5356 unicode += ((string[1] & 0x3f) << 24);
5357 unicode += ((string[2] & 0x3f) << 18);
5358 unicode += ((string[3] & 0x3f) << 12);
5359 unicode += ((string[4] & 0x3f) << 6);
5360 unicode += (string[5] & 0x3f);
5363 die("Invalid unicode length");
5366 /* Invalid characters could return the special 0xfffd value but NUL
5367 * should be just as good. */
5368 return unicode > 0xffff ? 0 : unicode;
5371 /* Calculates how much of string can be shown within the given maximum width
5372 * and sets trimmed parameter to non-zero value if all of string could not be
5373 * shown. If the reserve flag is TRUE, it will reserve at least one
5374 * trailing character, which can be useful when drawing a delimiter.
5376 * Returns the number of bytes to output from string to satisfy max_width. */
5378 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5380 const char *start = string;
5381 const char *end = strchr(string, '\0');
5382 unsigned char last_bytes = 0;
5383 size_t last_ucwidth = 0;
5388 while (string < end) {
5389 int c = *(unsigned char *) string;
5390 unsigned char bytes = utf8_bytes[c];
5392 unsigned long unicode;
5394 if (string + bytes > end)
5397 /* Change representation to figure out whether
5398 * it is a single- or double-width character. */
5400 unicode = utf8_to_unicode(string, bytes);
5401 /* FIXME: Graceful handling of invalid unicode character. */
5405 ucwidth = unicode_width(unicode);
5407 if (*width > max_width) {
5410 if (reserve && *width == max_width) {
5411 string -= last_bytes;
5412 *width -= last_ucwidth;
5419 last_ucwidth = ucwidth;
5422 return string - start;
5430 /* Whether or not the curses interface has been initialized. */
5431 static bool cursed = FALSE;
5433 /* The status window is used for polling keystrokes. */
5434 static WINDOW *status_win;
5436 static bool status_empty = TRUE;
5438 /* Update status and title window. */
5440 report(const char *msg, ...)
5442 struct view *view = display[current_view];
5448 char buf[SIZEOF_STR];
5451 va_start(args, msg);
5452 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5453 buf[sizeof(buf) - 1] = 0;
5454 buf[sizeof(buf) - 2] = '.';
5455 buf[sizeof(buf) - 3] = '.';
5456 buf[sizeof(buf) - 4] = '.';
5462 if (!status_empty || *msg) {
5465 va_start(args, msg);
5467 wmove(status_win, 0, 0);
5469 vwprintw(status_win, msg, args);
5470 status_empty = FALSE;
5472 status_empty = TRUE;
5474 wclrtoeol(status_win);
5475 wrefresh(status_win);
5480 update_view_title(view);
5481 update_display_cursor(view);
5484 /* Controls when nodelay should be in effect when polling user input. */
5486 set_nonblocking_input(bool loading)
5488 static unsigned int loading_views;
5490 if ((loading == FALSE && loading_views-- == 1) ||
5491 (loading == TRUE && loading_views++ == 0))
5492 nodelay(status_win, loading);
5500 /* Initialize the curses library */
5501 if (isatty(STDIN_FILENO)) {
5502 cursed = !!initscr();
5504 /* Leave stdin and stdout alone when acting as a pager. */
5505 FILE *io = fopen("/dev/tty", "r+");
5508 die("Failed to open /dev/tty");
5509 cursed = !!newterm(NULL, io, io);
5513 die("Failed to initialize curses");
5515 nonl(); /* Tell curses not to do NL->CR/NL on output */
5516 cbreak(); /* Take input chars one at a time, no wait for \n */
5517 noecho(); /* Don't echo input */
5518 leaveok(stdscr, TRUE);
5523 getmaxyx(stdscr, y, x);
5524 status_win = newwin(1, 0, y - 1, 0);
5526 die("Failed to create status window");
5528 /* Enable keyboard mapping */
5529 keypad(status_win, TRUE);
5530 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5532 TABSIZE = opt_tab_size;
5533 if (opt_line_graphics) {
5534 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5539 prompt_yesno(const char *prompt)
5541 enum { WAIT, STOP, CANCEL } status = WAIT;
5542 bool answer = FALSE;
5544 while (status == WAIT) {
5550 foreach_view (view, i)
5555 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
5556 wclrtoeol(status_win);
5558 /* Refresh, accept single keystroke of input */
5559 key = wgetch(status_win);
5583 /* Clear the status window */
5584 status_empty = FALSE;
5591 read_prompt(const char *prompt)
5593 enum { READING, STOP, CANCEL } status = READING;
5594 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
5597 while (status == READING) {
5603 foreach_view (view, i)
5608 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5609 wclrtoeol(status_win);
5611 /* Refresh, accept single keystroke of input */
5612 key = wgetch(status_win);
5617 status = pos ? STOP : CANCEL;
5635 if (pos >= sizeof(buf)) {
5636 report("Input string too long");
5641 buf[pos++] = (char) key;
5645 /* Clear the status window */
5646 status_empty = FALSE;
5649 if (status == CANCEL)
5658 * Repository references
5661 static struct ref *refs = NULL;
5662 static size_t refs_alloc = 0;
5663 static size_t refs_size = 0;
5665 /* Id <-> ref store */
5666 static struct ref ***id_refs = NULL;
5667 static size_t id_refs_alloc = 0;
5668 static size_t id_refs_size = 0;
5670 static struct ref **
5673 struct ref ***tmp_id_refs;
5674 struct ref **ref_list = NULL;
5675 size_t ref_list_alloc = 0;
5676 size_t ref_list_size = 0;
5679 for (i = 0; i < id_refs_size; i++)
5680 if (!strcmp(id, id_refs[i][0]->id))
5683 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
5688 id_refs = tmp_id_refs;
5690 for (i = 0; i < refs_size; i++) {
5693 if (strcmp(id, refs[i].id))
5696 tmp = realloc_items(ref_list, &ref_list_alloc,
5697 ref_list_size + 1, sizeof(*ref_list));
5705 if (ref_list_size > 0)
5706 ref_list[ref_list_size - 1]->next = 1;
5707 ref_list[ref_list_size] = &refs[i];
5709 /* XXX: The properties of the commit chains ensures that we can
5710 * safely modify the shared ref. The repo references will
5711 * always be similar for the same id. */
5712 ref_list[ref_list_size]->next = 0;
5717 id_refs[id_refs_size++] = ref_list;
5723 read_ref(char *id, size_t idlen, char *name, size_t namelen)
5728 bool remote = FALSE;
5729 bool tracked = FALSE;
5730 bool check_replace = FALSE;
5733 if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) {
5734 if (!strcmp(name + namelen - 3, "^{}")) {
5737 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
5738 check_replace = TRUE;
5744 namelen -= STRING_SIZE("refs/tags/");
5745 name += STRING_SIZE("refs/tags/");
5747 } else if (!strncmp(name, "refs/remotes/", STRING_SIZE("refs/remotes/"))) {
5749 namelen -= STRING_SIZE("refs/remotes/");
5750 name += STRING_SIZE("refs/remotes/");
5751 tracked = !strcmp(opt_remote, name);
5753 } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5754 namelen -= STRING_SIZE("refs/heads/");
5755 name += STRING_SIZE("refs/heads/");
5756 head = !strncmp(opt_head, name, namelen);
5758 } else if (!strcmp(name, "HEAD")) {
5759 opt_no_head = FALSE;
5763 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
5764 /* it's an annotated tag, replace the previous sha1 with the
5765 * resolved commit id; relies on the fact git-ls-remote lists
5766 * the commit id of an annotated tag right beofre the commit id
5768 refs[refs_size - 1].ltag = ltag;
5769 string_copy_rev(refs[refs_size - 1].id, id);
5773 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
5777 ref = &refs[refs_size++];
5778 ref->name = malloc(namelen + 1);
5782 strncpy(ref->name, name, namelen);
5783 ref->name[namelen] = 0;
5787 ref->remote = remote;
5788 ref->tracked = tracked;
5789 string_copy_rev(ref->id, id);
5797 const char *cmd_env = getenv("TIG_LS_REMOTE");
5798 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
5800 return read_properties(popen(cmd, "r"), "\t", read_ref);
5804 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
5806 if (!strcmp(name, "i18n.commitencoding"))
5807 string_ncopy(opt_encoding, value, valuelen);
5809 if (!strcmp(name, "core.editor"))
5810 string_ncopy(opt_editor, value, valuelen);
5812 /* branch.<head>.remote */
5814 !strncmp(name, "branch.", 7) &&
5815 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5816 !strcmp(name + 7 + strlen(opt_head), ".remote"))
5817 string_ncopy(opt_remote, value, valuelen);
5819 if (*opt_head && *opt_remote &&
5820 !strncmp(name, "branch.", 7) &&
5821 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5822 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
5823 size_t from = strlen(opt_remote);
5825 if (!strncmp(value, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5826 value += STRING_SIZE("refs/heads/");
5827 valuelen -= STRING_SIZE("refs/heads/");
5830 if (!string_format_from(opt_remote, &from, "/%s", value))
5838 load_git_config(void)
5840 return read_properties(popen(GIT_CONFIG " --list", "r"),
5841 "=", read_repo_config_option);
5845 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
5847 if (!opt_git_dir[0]) {
5848 string_ncopy(opt_git_dir, name, namelen);
5850 } else if (opt_is_inside_work_tree == -1) {
5851 /* This can be 3 different values depending on the
5852 * version of git being used. If git-rev-parse does not
5853 * understand --is-inside-work-tree it will simply echo
5854 * the option else either "true" or "false" is printed.
5855 * Default to true for the unknown case. */
5856 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
5858 } else if (opt_cdup[0] == ' ') {
5859 string_ncopy(opt_cdup, name, namelen);
5861 if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5862 namelen -= STRING_SIZE("refs/heads/");
5863 name += STRING_SIZE("refs/heads/");
5864 string_ncopy(opt_head, name, namelen);
5872 load_repo_info(void)
5875 FILE *pipe = popen("(git rev-parse --git-dir --is-inside-work-tree "
5876 " --show-cdup; git symbolic-ref HEAD) 2>/dev/null", "r");
5878 /* XXX: The line outputted by "--show-cdup" can be empty so
5879 * initialize it to something invalid to make it possible to
5880 * detect whether it has been set or not. */
5883 result = read_properties(pipe, "=", read_repo_info);
5884 if (opt_cdup[0] == ' ')
5891 read_properties(FILE *pipe, const char *separators,
5892 int (*read_property)(char *, size_t, char *, size_t))
5894 char buffer[BUFSIZ];
5901 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
5906 name = chomp_string(name);
5907 namelen = strcspn(name, separators);
5909 if (name[namelen]) {
5911 value = chomp_string(name + namelen + 1);
5912 valuelen = strlen(value);
5919 state = read_property(name, namelen, value, valuelen);
5922 if (state != ERR && ferror(pipe))
5935 static void __NORETURN
5938 /* XXX: Restore tty modes and let the OS cleanup the rest! */
5944 static void __NORETURN
5945 die(const char *err, ...)
5951 va_start(args, err);
5952 fputs("tig: ", stderr);
5953 vfprintf(stderr, err, args);
5954 fputs("\n", stderr);
5961 warn(const char *msg, ...)
5965 va_start(args, msg);
5966 fputs("tig warning: ", stderr);
5967 vfprintf(stderr, msg, args);
5968 fputs("\n", stderr);
5973 main(int argc, char *argv[])
5976 enum request request;
5979 signal(SIGINT, quit);
5981 if (setlocale(LC_ALL, "")) {
5982 char *codeset = nl_langinfo(CODESET);
5984 string_ncopy(opt_codeset, codeset, strlen(codeset));
5987 if (load_repo_info() == ERR)
5988 die("Failed to load repo info.");
5990 if (load_options() == ERR)
5991 die("Failed to load user config.");
5993 if (load_git_config() == ERR)
5994 die("Failed to load repo config.");
5996 request = parse_options(argc, argv);
5997 if (request == REQ_NONE)
6000 /* Require a git repository unless when running in pager mode. */
6001 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6002 die("Not a git repository");
6004 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6007 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6008 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6009 if (opt_iconv == ICONV_NONE)
6010 die("Failed to initialize character set conversion");
6013 if (*opt_git_dir && load_refs() == ERR)
6014 die("Failed to load refs.");
6016 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
6017 view->cmd_env = getenv(view->cmd_env);
6021 while (view_driver(display[current_view], request)) {
6025 foreach_view (view, i)
6028 /* Refresh, accept single keystroke of input */
6029 key = wgetch(status_win);
6031 /* wgetch() with nodelay() enabled returns ERR when there's no
6038 request = get_keybinding(display[current_view]->keymap, key);
6040 /* Some low-level request handling. This keeps access to
6041 * status_win restricted. */
6045 char *cmd = read_prompt(":");
6047 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
6048 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
6049 request = REQ_VIEW_DIFF;
6051 request = REQ_VIEW_PAGER;
6054 /* Always reload^Wrerun commands from the prompt. */
6055 open_view(view, request, OPEN_RELOAD);
6062 case REQ_SEARCH_BACK:
6064 const char *prompt = request == REQ_SEARCH
6066 char *search = read_prompt(prompt);
6069 string_ncopy(opt_search, search, strlen(search));
6074 case REQ_SCREEN_RESIZE:
6078 getmaxyx(stdscr, height, width);
6080 /* Resize the status view and let the view driver take
6081 * care of resizing the displayed views. */
6082 wresize(status_win, 1, width);
6083 mvwin(status_win, height - 1, 0);
6084 wrefresh(status_win);