1 /* Copyright (c) 2006-2008 Jonas Fonseca <fonseca@diku.dk>
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License as
5 * published by the Free Software Foundation; either version 2 of
6 * the License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
19 #define TIG_VERSION "unknown-version"
34 #include <sys/types.h>
45 /* ncurses(3): Must be defined to have extended wide-character functions. */
46 #define _XOPEN_SOURCE_EXTENDED
51 #define __NORETURN __attribute__((__noreturn__))
56 static void __NORETURN die(const char *err, ...);
57 static void warn(const char *msg, ...);
58 static void report(const char *msg, ...);
59 static int read_properties(FILE *pipe, const char *separators, int (*read)(char *, size_t, char *, size_t));
60 static void set_nonblocking_input(bool loading);
61 static size_t utf8_length(const char *string, size_t max_width, int *trimmed, bool reserve);
63 #define ABS(x) ((x) >= 0 ? (x) : -(x))
64 #define MIN(x, y) ((x) < (y) ? (x) : (y))
66 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
67 #define STRING_SIZE(x) (sizeof(x) - 1)
69 #define SIZEOF_STR 1024 /* Default string size. */
70 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
71 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL */
75 #define REVGRAPH_INIT 'I'
76 #define REVGRAPH_MERGE 'M'
77 #define REVGRAPH_BRANCH '+'
78 #define REVGRAPH_COMMIT '*'
79 #define REVGRAPH_BOUND '^'
81 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
83 /* This color name can be used to refer to the default term colors. */
84 #define COLOR_DEFAULT (-1)
86 #define ICONV_NONE ((iconv_t) -1)
88 #define ICONV_CONST /* nothing */
91 /* The format and size of the date column in the main view. */
92 #define DATE_FORMAT "%Y-%m-%d %H:%M"
93 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
95 #define AUTHOR_COLS 20
98 /* The default interval between line numbers. */
99 #define NUMBER_INTERVAL 5
103 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
105 #define NULL_ID "0000000000000000000000000000000000000000"
108 #define GIT_CONFIG "git config"
111 #define TIG_LS_REMOTE \
112 "git ls-remote $(git rev-parse --git-dir) 2>/dev/null"
114 #define TIG_DIFF_CMD \
115 "git show --pretty=fuller --no-color --root --patch-with-stat --find-copies-harder -C %s 2>/dev/null"
117 #define TIG_LOG_CMD \
118 "git log --no-color --cc --stat -n100 %s 2>/dev/null"
120 #define TIG_MAIN_CMD \
121 "git log --no-color --topo-order --parents --boundary --pretty=raw %s 2>/dev/null"
123 #define TIG_TREE_CMD \
126 #define TIG_BLOB_CMD \
127 "git cat-file blob %s"
129 /* XXX: Needs to be defined to the empty string. */
130 #define TIG_HELP_CMD ""
131 #define TIG_PAGER_CMD ""
132 #define TIG_STATUS_CMD ""
133 #define TIG_STAGE_CMD ""
134 #define TIG_BLAME_CMD ""
136 /* Some ascii-shorthands fitted into the ncurses namespace. */
138 #define KEY_RETURN '\r'
143 char *name; /* Ref name; tag or head names are shortened. */
144 char id[SIZEOF_REV]; /* Commit SHA1 ID */
145 unsigned int head:1; /* Is it the current HEAD? */
146 unsigned int tag:1; /* Is it a tag? */
147 unsigned int ltag:1; /* If so, is the tag local? */
148 unsigned int remote:1; /* Is it a remote ref? */
149 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
150 unsigned int next:1; /* For ref lists: are there more refs? */
153 static struct ref **get_refs(char *id);
162 set_from_int_map(struct int_map *map, size_t map_size,
163 int *value, const char *name, int namelen)
168 for (i = 0; i < map_size; i++)
169 if (namelen == map[i].namelen &&
170 !strncasecmp(name, map[i].name, namelen)) {
171 *value = map[i].value;
184 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
186 if (srclen > dstlen - 1)
189 strncpy(dst, src, srclen);
193 /* Shorthands for safely copying into a fixed buffer. */
195 #define string_copy(dst, src) \
196 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
198 #define string_ncopy(dst, src, srclen) \
199 string_ncopy_do(dst, sizeof(dst), src, srclen)
201 #define string_copy_rev(dst, src) \
202 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
204 #define string_add(dst, from, src) \
205 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
208 chomp_string(char *name)
212 while (isspace(*name))
215 namelen = strlen(name) - 1;
216 while (namelen > 0 && isspace(name[namelen]))
223 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
226 size_t pos = bufpos ? *bufpos : 0;
229 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
235 return pos >= bufsize ? FALSE : TRUE;
238 #define string_format(buf, fmt, args...) \
239 string_nformat(buf, sizeof(buf), NULL, fmt, args)
241 #define string_format_from(buf, from, fmt, args...) \
242 string_nformat(buf, sizeof(buf), from, fmt, args)
245 string_enum_compare(const char *str1, const char *str2, int len)
249 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
251 /* Diff-Header == DIFF_HEADER */
252 for (i = 0; i < len; i++) {
253 if (toupper(str1[i]) == toupper(str2[i]))
256 if (string_enum_sep(str1[i]) &&
257 string_enum_sep(str2[i]))
260 return str1[i] - str2[i];
268 * NOTE: The following is a slightly modified copy of the git project's shell
269 * quoting routines found in the quote.c file.
271 * Help to copy the thing properly quoted for the shell safety. any single
272 * quote is replaced with '\'', any exclamation point is replaced with '\!',
273 * and the whole thing is enclosed in a
276 * original sq_quote result
277 * name ==> name ==> 'name'
278 * a b ==> a b ==> 'a b'
279 * a'b ==> a'\''b ==> 'a'\''b'
280 * a!b ==> a'\!'b ==> 'a'\!'b'
284 sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src)
288 #define BUFPUT(x) do { if (bufsize < SIZEOF_STR) buf[bufsize++] = (x); } while (0)
291 while ((c = *src++)) {
292 if (c == '\'' || c == '!') {
303 if (bufsize < SIZEOF_STR)
315 /* XXX: Keep the view request first and in sync with views[]. */ \
316 REQ_GROUP("View switching") \
317 REQ_(VIEW_MAIN, "Show main view"), \
318 REQ_(VIEW_DIFF, "Show diff view"), \
319 REQ_(VIEW_LOG, "Show log view"), \
320 REQ_(VIEW_TREE, "Show tree view"), \
321 REQ_(VIEW_BLOB, "Show blob view"), \
322 REQ_(VIEW_BLAME, "Show blame view"), \
323 REQ_(VIEW_HELP, "Show help page"), \
324 REQ_(VIEW_PAGER, "Show pager view"), \
325 REQ_(VIEW_STATUS, "Show status view"), \
326 REQ_(VIEW_STAGE, "Show stage view"), \
328 REQ_GROUP("View manipulation") \
329 REQ_(ENTER, "Enter current line and scroll"), \
330 REQ_(NEXT, "Move to next"), \
331 REQ_(PREVIOUS, "Move to previous"), \
332 REQ_(VIEW_NEXT, "Move focus to next view"), \
333 REQ_(REFRESH, "Reload and refresh"), \
334 REQ_(MAXIMIZE, "Maximize the current view"), \
335 REQ_(VIEW_CLOSE, "Close the current view"), \
336 REQ_(QUIT, "Close all views and quit"), \
338 REQ_GROUP("Cursor navigation") \
339 REQ_(MOVE_UP, "Move cursor one line up"), \
340 REQ_(MOVE_DOWN, "Move cursor one line down"), \
341 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
342 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
343 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
344 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
346 REQ_GROUP("Scrolling") \
347 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
348 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
349 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
350 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
352 REQ_GROUP("Searching") \
353 REQ_(SEARCH, "Search the view"), \
354 REQ_(SEARCH_BACK, "Search backwards in the view"), \
355 REQ_(FIND_NEXT, "Find next search match"), \
356 REQ_(FIND_PREV, "Find previous search match"), \
359 REQ_(PROMPT, "Bring up the prompt"), \
360 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
361 REQ_(SCREEN_RESIZE, "Resize the screen"), \
362 REQ_(SHOW_VERSION, "Show version information"), \
363 REQ_(STOP_LOADING, "Stop all loading views"), \
364 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
365 REQ_(TOGGLE_DATE, "Toggle date display"), \
366 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
367 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
368 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
369 REQ_(STATUS_UPDATE, "Update file status"), \
370 REQ_(STATUS_MERGE, "Merge file using external tool"), \
371 REQ_(TREE_PARENT, "Switch to parent directory in tree view"), \
372 REQ_(EDIT, "Open in editor"), \
373 REQ_(NONE, "Do nothing")
376 /* User action requests. */
378 #define REQ_GROUP(help)
379 #define REQ_(req, help) REQ_##req
381 /* Offset all requests to avoid conflicts with ncurses getch values. */
382 REQ_OFFSET = KEY_MAX + 1,
389 struct request_info {
390 enum request request;
396 static struct request_info req_info[] = {
397 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
398 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
405 get_request(const char *name)
407 int namelen = strlen(name);
410 for (i = 0; i < ARRAY_SIZE(req_info); i++)
411 if (req_info[i].namelen == namelen &&
412 !string_enum_compare(req_info[i].name, name, namelen))
413 return req_info[i].request;
423 static const char usage[] =
424 "tig " TIG_VERSION " (" __DATE__ ")\n"
426 "Usage: tig [options] [revs] [--] [paths]\n"
427 " or: tig show [options] [revs] [--] [paths]\n"
428 " or: tig blame [rev] path\n"
430 " or: tig < [git command output]\n"
433 " -v, --version Show version and exit\n"
434 " -h, --help Show help message and exit";
436 /* Option and state variables. */
437 static bool opt_date = TRUE;
438 static bool opt_author = TRUE;
439 static bool opt_line_number = FALSE;
440 static bool opt_line_graphics = TRUE;
441 static bool opt_rev_graph = FALSE;
442 static bool opt_show_refs = TRUE;
443 static int opt_num_interval = NUMBER_INTERVAL;
444 static int opt_tab_size = TAB_SIZE;
445 static enum request opt_request = REQ_VIEW_MAIN;
446 static char opt_cmd[SIZEOF_STR] = "";
447 static char opt_path[SIZEOF_STR] = "";
448 static char opt_file[SIZEOF_STR] = "";
449 static char opt_ref[SIZEOF_REF] = "";
450 static char opt_head[SIZEOF_REF] = "";
451 static char opt_remote[SIZEOF_REF] = "";
452 static bool opt_no_head = TRUE;
453 static FILE *opt_pipe = NULL;
454 static char opt_encoding[20] = "UTF-8";
455 static bool opt_utf8 = TRUE;
456 static char opt_codeset[20] = "UTF-8";
457 static iconv_t opt_iconv = ICONV_NONE;
458 static char opt_search[SIZEOF_STR] = "";
459 static char opt_cdup[SIZEOF_STR] = "";
460 static char opt_git_dir[SIZEOF_STR] = "";
461 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
462 static char opt_editor[SIZEOF_STR] = "";
465 parse_options(int argc, char *argv[])
469 bool seen_dashdash = FALSE;
472 if (!isatty(STDIN_FILENO)) {
473 opt_request = REQ_VIEW_PAGER;
481 subcommand = argv[1];
482 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
483 opt_request = REQ_VIEW_STATUS;
484 if (!strcmp(subcommand, "-S"))
485 warn("`-S' has been deprecated; use `tig status' instead");
487 warn("ignoring arguments after `%s'", subcommand);
490 } else if (!strcmp(subcommand, "blame")) {
491 opt_request = REQ_VIEW_BLAME;
492 if (argc <= 2 || argc > 4)
493 die("invalid number of options to blame\n\n%s", usage);
497 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
501 string_ncopy(opt_file, argv[i], strlen(argv[i]));
504 } else if (!strcmp(subcommand, "show")) {
505 opt_request = REQ_VIEW_DIFF;
507 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
508 opt_request = subcommand[0] == 'l'
509 ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
510 warn("`tig %s' has been deprecated", subcommand);
517 /* XXX: This is vulnerable to the user overriding
518 * options required for the main view parser. */
519 string_copy(opt_cmd, "git log --no-color --pretty=raw --boundary --parents");
521 string_format(opt_cmd, "git %s", subcommand);
523 buf_size = strlen(opt_cmd);
525 for (i = 1 + !!subcommand; i < argc; i++) {
528 if (seen_dashdash || !strcmp(opt, "--")) {
529 seen_dashdash = TRUE;
531 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
532 printf("tig version %s\n", TIG_VERSION);
535 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
536 printf("%s\n", usage);
540 opt_cmd[buf_size++] = ' ';
541 buf_size = sq_quote(opt_cmd, buf_size, opt);
542 if (buf_size >= sizeof(opt_cmd))
543 die("command too long");
546 opt_cmd[buf_size] = 0;
553 * Line-oriented content detection.
557 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
558 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
559 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
560 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
561 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
562 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
563 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
564 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
565 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
566 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
567 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
568 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
569 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
570 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
571 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
572 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
573 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
574 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
575 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
576 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
577 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
578 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
579 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
580 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
581 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
582 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
583 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
584 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
585 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
586 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
587 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
588 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
589 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
590 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
591 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
592 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
593 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
594 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
595 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
596 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
597 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
598 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
599 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
600 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
601 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
602 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
603 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
604 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
605 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
606 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
607 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
608 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
609 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
610 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
613 #define LINE(type, line, fg, bg, attr) \
621 const char *name; /* Option name. */
622 int namelen; /* Size of option name. */
623 const char *line; /* The start of line to match. */
624 int linelen; /* Size of string to match. */
625 int fg, bg, attr; /* Color and text attributes for the lines. */
628 static struct line_info line_info[] = {
629 #define LINE(type, line, fg, bg, attr) \
630 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
635 static enum line_type
636 get_line_type(char *line)
638 int linelen = strlen(line);
641 for (type = 0; type < ARRAY_SIZE(line_info); type++)
642 /* Case insensitive search matches Signed-off-by lines better. */
643 if (linelen >= line_info[type].linelen &&
644 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
651 get_line_attr(enum line_type type)
653 assert(type < ARRAY_SIZE(line_info));
654 return COLOR_PAIR(type) | line_info[type].attr;
657 static struct line_info *
658 get_line_info(char *name)
660 size_t namelen = strlen(name);
663 for (type = 0; type < ARRAY_SIZE(line_info); type++)
664 if (namelen == line_info[type].namelen &&
665 !string_enum_compare(line_info[type].name, name, namelen))
666 return &line_info[type];
674 int default_bg = line_info[LINE_DEFAULT].bg;
675 int default_fg = line_info[LINE_DEFAULT].fg;
680 if (assume_default_colors(default_fg, default_bg) == ERR) {
681 default_bg = COLOR_BLACK;
682 default_fg = COLOR_WHITE;
685 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
686 struct line_info *info = &line_info[type];
687 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
688 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
690 init_pair(type, fg, bg);
698 unsigned int selected:1;
699 unsigned int dirty:1;
701 void *data; /* User data */
711 enum request request;
712 struct keybinding *next;
715 static struct keybinding default_keybindings[] = {
717 { 'm', REQ_VIEW_MAIN },
718 { 'd', REQ_VIEW_DIFF },
719 { 'l', REQ_VIEW_LOG },
720 { 't', REQ_VIEW_TREE },
721 { 'f', REQ_VIEW_BLOB },
722 { 'B', REQ_VIEW_BLAME },
723 { 'p', REQ_VIEW_PAGER },
724 { 'h', REQ_VIEW_HELP },
725 { 'S', REQ_VIEW_STATUS },
726 { 'c', REQ_VIEW_STAGE },
728 /* View manipulation */
729 { 'q', REQ_VIEW_CLOSE },
730 { KEY_TAB, REQ_VIEW_NEXT },
731 { KEY_RETURN, REQ_ENTER },
732 { KEY_UP, REQ_PREVIOUS },
733 { KEY_DOWN, REQ_NEXT },
734 { 'R', REQ_REFRESH },
735 { KEY_F(5), REQ_REFRESH },
736 { 'O', REQ_MAXIMIZE },
738 /* Cursor navigation */
739 { 'k', REQ_MOVE_UP },
740 { 'j', REQ_MOVE_DOWN },
741 { KEY_HOME, REQ_MOVE_FIRST_LINE },
742 { KEY_END, REQ_MOVE_LAST_LINE },
743 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
744 { ' ', REQ_MOVE_PAGE_DOWN },
745 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
746 { 'b', REQ_MOVE_PAGE_UP },
747 { '-', REQ_MOVE_PAGE_UP },
750 { KEY_IC, REQ_SCROLL_LINE_UP },
751 { KEY_DC, REQ_SCROLL_LINE_DOWN },
752 { 'w', REQ_SCROLL_PAGE_UP },
753 { 's', REQ_SCROLL_PAGE_DOWN },
757 { '?', REQ_SEARCH_BACK },
758 { 'n', REQ_FIND_NEXT },
759 { 'N', REQ_FIND_PREV },
763 { 'z', REQ_STOP_LOADING },
764 { 'v', REQ_SHOW_VERSION },
765 { 'r', REQ_SCREEN_REDRAW },
766 { '.', REQ_TOGGLE_LINENO },
767 { 'D', REQ_TOGGLE_DATE },
768 { 'A', REQ_TOGGLE_AUTHOR },
769 { 'g', REQ_TOGGLE_REV_GRAPH },
770 { 'F', REQ_TOGGLE_REFS },
772 { 'u', REQ_STATUS_UPDATE },
773 { 'M', REQ_STATUS_MERGE },
774 { ',', REQ_TREE_PARENT },
777 /* Using the ncurses SIGWINCH handler. */
778 { KEY_RESIZE, REQ_SCREEN_RESIZE },
781 #define KEYMAP_INFO \
795 #define KEYMAP_(name) KEYMAP_##name
800 static struct int_map keymap_table[] = {
801 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
806 #define set_keymap(map, name) \
807 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
809 static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)];
812 add_keybinding(enum keymap keymap, enum request request, int key)
814 struct keybinding *keybinding;
816 keybinding = calloc(1, sizeof(*keybinding));
818 die("Failed to allocate keybinding");
820 keybinding->alias = key;
821 keybinding->request = request;
822 keybinding->next = keybindings[keymap];
823 keybindings[keymap] = keybinding;
826 /* Looks for a key binding first in the given map, then in the generic map, and
827 * lastly in the default keybindings. */
829 get_keybinding(enum keymap keymap, int key)
831 struct keybinding *kbd;
834 for (kbd = keybindings[keymap]; kbd; kbd = kbd->next)
835 if (kbd->alias == key)
838 for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next)
839 if (kbd->alias == key)
842 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
843 if (default_keybindings[i].alias == key)
844 return default_keybindings[i].request;
846 return (enum request) key;
855 static struct key key_table[] = {
856 { "Enter", KEY_RETURN },
858 { "Backspace", KEY_BACKSPACE },
860 { "Escape", KEY_ESC },
861 { "Left", KEY_LEFT },
862 { "Right", KEY_RIGHT },
864 { "Down", KEY_DOWN },
865 { "Insert", KEY_IC },
866 { "Delete", KEY_DC },
868 { "Home", KEY_HOME },
870 { "PageUp", KEY_PPAGE },
871 { "PageDown", KEY_NPAGE },
881 { "F10", KEY_F(10) },
882 { "F11", KEY_F(11) },
883 { "F12", KEY_F(12) },
887 get_key_value(const char *name)
891 for (i = 0; i < ARRAY_SIZE(key_table); i++)
892 if (!strcasecmp(key_table[i].name, name))
893 return key_table[i].value;
895 if (strlen(name) == 1 && isprint(*name))
902 get_key_name(int key_value)
904 static char key_char[] = "'X'";
908 for (key = 0; key < ARRAY_SIZE(key_table); key++)
909 if (key_table[key].value == key_value)
910 seq = key_table[key].name;
914 isprint(key_value)) {
915 key_char[1] = (char) key_value;
919 return seq ? seq : "'?'";
923 get_key(enum request request)
925 static char buf[BUFSIZ];
932 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
933 struct keybinding *keybinding = &default_keybindings[i];
935 if (keybinding->request != request)
938 if (!string_format_from(buf, &pos, "%s%s", sep,
939 get_key_name(keybinding->alias)))
940 return "Too many keybindings!";
950 char cmd[SIZEOF_STR];
953 static struct run_request *run_request;
954 static size_t run_requests;
957 add_run_request(enum keymap keymap, int key, int argc, char **argv)
959 struct run_request *tmp;
960 struct run_request req = { keymap, key };
963 for (bufpos = 0; argc > 0; argc--, argv++)
964 if (!string_format_from(req.cmd, &bufpos, "%s ", *argv))
967 req.cmd[bufpos - 1] = 0;
969 tmp = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
974 run_request[run_requests++] = req;
976 return REQ_NONE + run_requests;
979 static struct run_request *
980 get_run_request(enum request request)
982 if (request <= REQ_NONE)
984 return &run_request[request - REQ_NONE - 1];
988 add_builtin_run_requests(void)
995 { KEYMAP_MAIN, 'C', { "git cherry-pick %(commit)" } },
996 { KEYMAP_GENERIC, 'G', { "git gc" } },
1000 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1003 req = add_run_request(reqs[i].keymap, reqs[i].key, 1, reqs[i].argv);
1004 if (req != REQ_NONE)
1005 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1010 * User config file handling.
1013 static struct int_map color_map[] = {
1014 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1026 #define set_color(color, name) \
1027 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1029 static struct int_map attr_map[] = {
1030 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1037 ATTR_MAP(UNDERLINE),
1040 #define set_attribute(attr, name) \
1041 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1043 static int config_lineno;
1044 static bool config_errors;
1045 static char *config_msg;
1047 /* Wants: object fgcolor bgcolor [attr] */
1049 option_color_command(int argc, char *argv[])
1051 struct line_info *info;
1053 if (argc != 3 && argc != 4) {
1054 config_msg = "Wrong number of arguments given to color command";
1058 info = get_line_info(argv[0]);
1060 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1061 info = get_line_info("delimiter");
1063 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1064 info = get_line_info("date");
1067 config_msg = "Unknown color name";
1072 if (set_color(&info->fg, argv[1]) == ERR ||
1073 set_color(&info->bg, argv[2]) == ERR) {
1074 config_msg = "Unknown color";
1078 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1079 config_msg = "Unknown attribute";
1086 static bool parse_bool(const char *s)
1088 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1089 !strcmp(s, "yes")) ? TRUE : FALSE;
1092 /* Wants: name = value */
1094 option_set_command(int argc, char *argv[])
1097 config_msg = "Wrong number of arguments given to set command";
1101 if (strcmp(argv[1], "=")) {
1102 config_msg = "No value assigned";
1106 if (!strcmp(argv[0], "show-author")) {
1107 opt_author = parse_bool(argv[2]);
1111 if (!strcmp(argv[0], "show-date")) {
1112 opt_date = parse_bool(argv[2]);
1116 if (!strcmp(argv[0], "show-rev-graph")) {
1117 opt_rev_graph = parse_bool(argv[2]);
1121 if (!strcmp(argv[0], "show-refs")) {
1122 opt_show_refs = parse_bool(argv[2]);
1126 if (!strcmp(argv[0], "show-line-numbers")) {
1127 opt_line_number = parse_bool(argv[2]);
1131 if (!strcmp(argv[0], "line-graphics")) {
1132 opt_line_graphics = parse_bool(argv[2]);
1136 if (!strcmp(argv[0], "line-number-interval")) {
1137 opt_num_interval = atoi(argv[2]);
1141 if (!strcmp(argv[0], "tab-size")) {
1142 opt_tab_size = atoi(argv[2]);
1146 if (!strcmp(argv[0], "commit-encoding")) {
1147 char *arg = argv[2];
1148 int delimiter = *arg;
1151 switch (delimiter) {
1154 for (arg++, i = 0; arg[i]; i++)
1155 if (arg[i] == delimiter) {
1160 string_ncopy(opt_encoding, arg, strlen(arg));
1165 config_msg = "Unknown variable name";
1169 /* Wants: mode request key */
1171 option_bind_command(int argc, char *argv[])
1173 enum request request;
1178 config_msg = "Wrong number of arguments given to bind command";
1182 if (set_keymap(&keymap, argv[0]) == ERR) {
1183 config_msg = "Unknown key map";
1187 key = get_key_value(argv[1]);
1189 config_msg = "Unknown key";
1193 request = get_request(argv[2]);
1194 if (request == REQ_NONE) {
1195 const char *obsolete[] = { "cherry-pick" };
1196 size_t namelen = strlen(argv[2]);
1199 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1200 if (namelen == strlen(obsolete[i]) &&
1201 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1202 config_msg = "Obsolete request name";
1207 if (request == REQ_NONE && *argv[2]++ == '!')
1208 request = add_run_request(keymap, key, argc - 2, argv + 2);
1209 if (request == REQ_NONE) {
1210 config_msg = "Unknown request name";
1214 add_keybinding(keymap, request, key);
1220 set_option(char *opt, char *value)
1227 while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) {
1228 argv[argc++] = value;
1231 /* Nothing more to tokenize or last available token. */
1232 if (!*value || argc >= ARRAY_SIZE(argv))
1236 while (isspace(*value))
1240 if (!strcmp(opt, "color"))
1241 return option_color_command(argc, argv);
1243 if (!strcmp(opt, "set"))
1244 return option_set_command(argc, argv);
1246 if (!strcmp(opt, "bind"))
1247 return option_bind_command(argc, argv);
1249 config_msg = "Unknown option command";
1254 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1259 config_msg = "Internal error";
1261 /* Check for comment markers, since read_properties() will
1262 * only ensure opt and value are split at first " \t". */
1263 optlen = strcspn(opt, "#");
1267 if (opt[optlen] != 0) {
1268 config_msg = "No option value";
1272 /* Look for comment endings in the value. */
1273 size_t len = strcspn(value, "#");
1275 if (len < valuelen) {
1277 value[valuelen] = 0;
1280 status = set_option(opt, value);
1283 if (status == ERR) {
1284 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1285 config_lineno, (int) optlen, opt, config_msg);
1286 config_errors = TRUE;
1289 /* Always keep going if errors are encountered. */
1294 load_option_file(const char *path)
1298 /* It's ok that the file doesn't exist. */
1299 file = fopen(path, "r");
1304 config_errors = FALSE;
1306 if (read_properties(file, " \t", read_option) == ERR ||
1307 config_errors == TRUE)
1308 fprintf(stderr, "Errors while loading %s.\n", path);
1314 char *home = getenv("HOME");
1315 char *tigrc_user = getenv("TIGRC_USER");
1316 char *tigrc_system = getenv("TIGRC_SYSTEM");
1317 char buf[SIZEOF_STR];
1319 add_builtin_run_requests();
1321 if (!tigrc_system) {
1322 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1326 load_option_file(tigrc_system);
1329 if (!home || !string_format(buf, "%s/.tigrc", home))
1333 load_option_file(tigrc_user);
1346 /* The display array of active views and the index of the current view. */
1347 static struct view *display[2];
1348 static unsigned int current_view;
1350 /* Reading from the prompt? */
1351 static bool input_mode = FALSE;
1353 #define foreach_displayed_view(view, i) \
1354 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1356 #define displayed_views() (display[1] != NULL ? 2 : 1)
1358 /* Current head and commit ID */
1359 static char ref_blob[SIZEOF_REF] = "";
1360 static char ref_commit[SIZEOF_REF] = "HEAD";
1361 static char ref_head[SIZEOF_REF] = "HEAD";
1364 const char *name; /* View name */
1365 const char *cmd_fmt; /* Default command line format */
1366 const char *cmd_env; /* Command line set via environment */
1367 const char *id; /* Points to either of ref_{head,commit,blob} */
1369 struct view_ops *ops; /* View operations */
1371 enum keymap keymap; /* What keymap does this view have */
1372 bool git_dir; /* Whether the view requires a git directory. */
1374 char cmd[SIZEOF_STR]; /* Command buffer */
1375 char ref[SIZEOF_REF]; /* Hovered commit reference */
1376 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1378 int height, width; /* The width and height of the main window */
1379 WINDOW *win; /* The main window */
1380 WINDOW *title; /* The title window living below the main window */
1383 unsigned long offset; /* Offset of the window top */
1384 unsigned long lineno; /* Current line number */
1387 char grep[SIZEOF_STR]; /* Search string */
1388 regex_t *regex; /* Pre-compiled regex */
1390 /* If non-NULL, points to the view that opened this view. If this view
1391 * is closed tig will switch back to the parent view. */
1392 struct view *parent;
1395 size_t lines; /* Total number of lines */
1396 struct line *line; /* Line index */
1397 size_t line_alloc; /* Total number of allocated lines */
1398 size_t line_size; /* Total number of used lines */
1399 unsigned int digits; /* Number of digits in the lines member. */
1402 struct line *curline; /* Line currently being drawn. */
1403 enum line_type curtype; /* Attribute currently used for drawing. */
1411 /* What type of content being displayed. Used in the title bar. */
1413 /* Open and reads in all view content. */
1414 bool (*open)(struct view *view);
1415 /* Read one line; updates view->line. */
1416 bool (*read)(struct view *view, char *data);
1417 /* Draw one line; @lineno must be < view->height. */
1418 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1419 /* Depending on view handle a special requests. */
1420 enum request (*request)(struct view *view, enum request request, struct line *line);
1421 /* Search for regex in a line. */
1422 bool (*grep)(struct view *view, struct line *line);
1424 void (*select)(struct view *view, struct line *line);
1427 static struct view_ops pager_ops;
1428 static struct view_ops main_ops;
1429 static struct view_ops tree_ops;
1430 static struct view_ops blob_ops;
1431 static struct view_ops blame_ops;
1432 static struct view_ops help_ops;
1433 static struct view_ops status_ops;
1434 static struct view_ops stage_ops;
1436 #define VIEW_STR(name, cmd, env, ref, ops, map, git) \
1437 { name, cmd, #env, ref, ops, map, git }
1439 #define VIEW_(id, name, ops, git, ref) \
1440 VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1443 static struct view views[] = {
1444 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1445 VIEW_(DIFF, "diff", &pager_ops, TRUE, ref_commit),
1446 VIEW_(LOG, "log", &pager_ops, TRUE, ref_head),
1447 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1448 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1449 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1450 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1451 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1452 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1453 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1456 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1457 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1459 #define foreach_view(view, i) \
1460 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1462 #define view_is_displayed(view) \
1463 (view == display[0] || view == display[1])
1470 static int line_graphics[] = {
1471 /* LINE_GRAPHIC_VLINE: */ '|'
1475 set_view_attr(struct view *view, enum line_type type)
1477 if (!view->curline->selected && view->curtype != type) {
1478 wattrset(view->win, get_line_attr(type));
1479 wchgat(view->win, -1, 0, type, NULL);
1480 view->curtype = type;
1485 draw_text(struct view *view, enum line_type type, const char *string,
1486 int max_len, bool use_tilde)
1489 int trimmed = FALSE;
1495 len = utf8_length(string, max_len, &trimmed, use_tilde);
1497 len = strlen(string);
1498 if (len > max_len) {
1507 set_view_attr(view, type);
1508 waddnstr(view->win, string, len);
1509 if (trimmed && use_tilde) {
1510 set_view_attr(view, LINE_DELIMITER);
1511 waddch(view->win, '~');
1519 draw_lineno(struct view *view, unsigned int lineno, int max)
1521 static char fmt[] = "%1ld";
1522 char number[10] = " ";
1523 int digits3 = view->digits < 3 ? 3 : view->digits;
1524 int max_number = MIN(digits3, STRING_SIZE(number));
1525 bool showtrimmed = FALSE;
1528 lineno += view->offset + 1;
1529 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1530 if (view->digits <= 9)
1531 fmt[1] = '0' + digits3;
1533 if (!string_format(number, fmt, lineno))
1538 if (max < max_number)
1541 col = draw_text(view, LINE_LINE_NUMBER, number, max_number, showtrimmed);
1543 set_view_attr(view, LINE_DEFAULT);
1544 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1548 waddch(view->win, ' ');
1556 draw_date(struct view *view, struct tm *time, int max)
1558 char buf[DATE_COLS];
1562 if (max > DATE_COLS)
1565 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1567 memset(buf, ' ', sizeof(buf) - 1);
1568 buf[sizeof(buf) - 1] = 0;
1571 col = draw_text(view, LINE_DATE, buf, max, FALSE);
1573 set_view_attr(view, LINE_DEFAULT);
1574 waddch(view->win, ' ');
1582 draw_view_line(struct view *view, unsigned int lineno)
1585 bool selected = (view->offset + lineno == view->lineno);
1588 assert(view_is_displayed(view));
1590 if (view->offset + lineno >= view->lines)
1593 line = &view->line[view->offset + lineno];
1595 wmove(view->win, lineno, 0);
1596 view->curline = line;
1597 view->curtype = LINE_NONE;
1598 line->selected = FALSE;
1601 set_view_attr(view, LINE_CURSOR);
1602 line->selected = TRUE;
1603 view->ops->select(view, line);
1604 } else if (line->selected) {
1605 wclrtoeol(view->win);
1608 scrollok(view->win, FALSE);
1609 draw_ok = view->ops->draw(view, line, lineno);
1610 scrollok(view->win, TRUE);
1616 redraw_view_dirty(struct view *view)
1621 for (lineno = 0; lineno < view->height; lineno++) {
1622 struct line *line = &view->line[view->offset + lineno];
1628 if (!draw_view_line(view, lineno))
1634 redrawwin(view->win);
1636 wnoutrefresh(view->win);
1638 wrefresh(view->win);
1642 redraw_view_from(struct view *view, int lineno)
1644 assert(0 <= lineno && lineno < view->height);
1646 for (; lineno < view->height; lineno++) {
1647 if (!draw_view_line(view, lineno))
1651 redrawwin(view->win);
1653 wnoutrefresh(view->win);
1655 wrefresh(view->win);
1659 redraw_view(struct view *view)
1662 redraw_view_from(view, 0);
1667 update_view_title(struct view *view)
1669 char buf[SIZEOF_STR];
1670 char state[SIZEOF_STR];
1671 size_t bufpos = 0, statelen = 0;
1673 assert(view_is_displayed(view));
1675 if (view != VIEW(REQ_VIEW_STATUS) && (view->lines || view->pipe)) {
1676 unsigned int view_lines = view->offset + view->height;
1677 unsigned int lines = view->lines
1678 ? MIN(view_lines, view->lines) * 100 / view->lines
1681 string_format_from(state, &statelen, "- %s %d of %d (%d%%)",
1688 time_t secs = time(NULL) - view->start_time;
1690 /* Three git seconds are a long time ... */
1692 string_format_from(state, &statelen, " %lds", secs);
1696 string_format_from(buf, &bufpos, "[%s]", view->name);
1697 if (*view->ref && bufpos < view->width) {
1698 size_t refsize = strlen(view->ref);
1699 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
1701 if (minsize < view->width)
1702 refsize = view->width - minsize + 7;
1703 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
1706 if (statelen && bufpos < view->width) {
1707 string_format_from(buf, &bufpos, " %s", state);
1710 if (view == display[current_view])
1711 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
1713 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
1715 mvwaddnstr(view->title, 0, 0, buf, bufpos);
1716 wclrtoeol(view->title);
1717 wmove(view->title, 0, view->width - 1);
1720 wnoutrefresh(view->title);
1722 wrefresh(view->title);
1726 resize_display(void)
1729 struct view *base = display[0];
1730 struct view *view = display[1] ? display[1] : display[0];
1732 /* Setup window dimensions */
1734 getmaxyx(stdscr, base->height, base->width);
1736 /* Make room for the status window. */
1740 /* Horizontal split. */
1741 view->width = base->width;
1742 view->height = SCALE_SPLIT_VIEW(base->height);
1743 base->height -= view->height;
1745 /* Make room for the title bar. */
1749 /* Make room for the title bar. */
1754 foreach_displayed_view (view, i) {
1756 view->win = newwin(view->height, 0, offset, 0);
1758 die("Failed to create %s view", view->name);
1760 scrollok(view->win, TRUE);
1762 view->title = newwin(1, 0, offset + view->height, 0);
1764 die("Failed to create title window");
1767 wresize(view->win, view->height, view->width);
1768 mvwin(view->win, offset, 0);
1769 mvwin(view->title, offset + view->height, 0);
1772 offset += view->height + 1;
1777 redraw_display(void)
1782 foreach_displayed_view (view, i) {
1784 update_view_title(view);
1789 update_display_cursor(struct view *view)
1791 /* Move the cursor to the right-most column of the cursor line.
1793 * XXX: This could turn out to be a bit expensive, but it ensures that
1794 * the cursor does not jump around. */
1796 wmove(view->win, view->lineno - view->offset, view->width - 1);
1797 wrefresh(view->win);
1805 /* Scrolling backend */
1807 do_scroll_view(struct view *view, int lines)
1809 bool redraw_current_line = FALSE;
1811 /* The rendering expects the new offset. */
1812 view->offset += lines;
1814 assert(0 <= view->offset && view->offset < view->lines);
1817 /* Move current line into the view. */
1818 if (view->lineno < view->offset) {
1819 view->lineno = view->offset;
1820 redraw_current_line = TRUE;
1821 } else if (view->lineno >= view->offset + view->height) {
1822 view->lineno = view->offset + view->height - 1;
1823 redraw_current_line = TRUE;
1826 assert(view->offset <= view->lineno && view->lineno < view->lines);
1828 /* Redraw the whole screen if scrolling is pointless. */
1829 if (view->height < ABS(lines)) {
1833 int line = lines > 0 ? view->height - lines : 0;
1834 int end = line + ABS(lines);
1836 wscrl(view->win, lines);
1838 for (; line < end; line++) {
1839 if (!draw_view_line(view, line))
1843 if (redraw_current_line)
1844 draw_view_line(view, view->lineno - view->offset);
1847 redrawwin(view->win);
1848 wrefresh(view->win);
1852 /* Scroll frontend */
1854 scroll_view(struct view *view, enum request request)
1858 assert(view_is_displayed(view));
1861 case REQ_SCROLL_PAGE_DOWN:
1862 lines = view->height;
1863 case REQ_SCROLL_LINE_DOWN:
1864 if (view->offset + lines > view->lines)
1865 lines = view->lines - view->offset;
1867 if (lines == 0 || view->offset + view->height >= view->lines) {
1868 report("Cannot scroll beyond the last line");
1873 case REQ_SCROLL_PAGE_UP:
1874 lines = view->height;
1875 case REQ_SCROLL_LINE_UP:
1876 if (lines > view->offset)
1877 lines = view->offset;
1880 report("Cannot scroll beyond the first line");
1888 die("request %d not handled in switch", request);
1891 do_scroll_view(view, lines);
1896 move_view(struct view *view, enum request request)
1898 int scroll_steps = 0;
1902 case REQ_MOVE_FIRST_LINE:
1903 steps = -view->lineno;
1906 case REQ_MOVE_LAST_LINE:
1907 steps = view->lines - view->lineno - 1;
1910 case REQ_MOVE_PAGE_UP:
1911 steps = view->height > view->lineno
1912 ? -view->lineno : -view->height;
1915 case REQ_MOVE_PAGE_DOWN:
1916 steps = view->lineno + view->height >= view->lines
1917 ? view->lines - view->lineno - 1 : view->height;
1929 die("request %d not handled in switch", request);
1932 if (steps <= 0 && view->lineno == 0) {
1933 report("Cannot move beyond the first line");
1936 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
1937 report("Cannot move beyond the last line");
1941 /* Move the current line */
1942 view->lineno += steps;
1943 assert(0 <= view->lineno && view->lineno < view->lines);
1945 /* Check whether the view needs to be scrolled */
1946 if (view->lineno < view->offset ||
1947 view->lineno >= view->offset + view->height) {
1948 scroll_steps = steps;
1949 if (steps < 0 && -steps > view->offset) {
1950 scroll_steps = -view->offset;
1952 } else if (steps > 0) {
1953 if (view->lineno == view->lines - 1 &&
1954 view->lines > view->height) {
1955 scroll_steps = view->lines - view->offset - 1;
1956 if (scroll_steps >= view->height)
1957 scroll_steps -= view->height - 1;
1962 if (!view_is_displayed(view)) {
1963 view->offset += scroll_steps;
1964 assert(0 <= view->offset && view->offset < view->lines);
1965 view->ops->select(view, &view->line[view->lineno]);
1969 /* Repaint the old "current" line if we be scrolling */
1970 if (ABS(steps) < view->height)
1971 draw_view_line(view, view->lineno - steps - view->offset);
1974 do_scroll_view(view, scroll_steps);
1978 /* Draw the current line */
1979 draw_view_line(view, view->lineno - view->offset);
1981 redrawwin(view->win);
1982 wrefresh(view->win);
1991 static void search_view(struct view *view, enum request request);
1994 find_next_line(struct view *view, unsigned long lineno, struct line *line)
1996 assert(view_is_displayed(view));
1998 if (!view->ops->grep(view, line))
2001 if (lineno - view->offset >= view->height) {
2002 view->offset = lineno;
2003 view->lineno = lineno;
2007 unsigned long old_lineno = view->lineno - view->offset;
2009 view->lineno = lineno;
2010 draw_view_line(view, old_lineno);
2012 draw_view_line(view, view->lineno - view->offset);
2013 redrawwin(view->win);
2014 wrefresh(view->win);
2017 report("Line %ld matches '%s'", lineno + 1, view->grep);
2022 find_next(struct view *view, enum request request)
2024 unsigned long lineno = view->lineno;
2029 report("No previous search");
2031 search_view(view, request);
2041 case REQ_SEARCH_BACK:
2050 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2051 lineno += direction;
2053 /* Note, lineno is unsigned long so will wrap around in which case it
2054 * will become bigger than view->lines. */
2055 for (; lineno < view->lines; lineno += direction) {
2056 struct line *line = &view->line[lineno];
2058 if (find_next_line(view, lineno, line))
2062 report("No match found for '%s'", view->grep);
2066 search_view(struct view *view, enum request request)
2071 regfree(view->regex);
2074 view->regex = calloc(1, sizeof(*view->regex));
2079 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2080 if (regex_err != 0) {
2081 char buf[SIZEOF_STR] = "unknown error";
2083 regerror(regex_err, view->regex, buf, sizeof(buf));
2084 report("Search failed: %s", buf);
2088 string_copy(view->grep, opt_search);
2090 find_next(view, request);
2094 * Incremental updating
2098 end_update(struct view *view)
2102 set_nonblocking_input(FALSE);
2103 if (view->pipe == stdin)
2111 begin_update(struct view *view)
2117 string_copy(view->cmd, opt_cmd);
2119 /* When running random commands, initially show the
2120 * command in the title. However, it maybe later be
2121 * overwritten if a commit line is selected. */
2122 if (view == VIEW(REQ_VIEW_PAGER))
2123 string_copy(view->ref, view->cmd);
2127 } else if (view == VIEW(REQ_VIEW_TREE)) {
2128 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2129 char path[SIZEOF_STR];
2131 if (strcmp(view->vid, view->id))
2132 opt_path[0] = path[0] = 0;
2133 else if (sq_quote(path, 0, opt_path) >= sizeof(path))
2136 if (!string_format(view->cmd, format, view->id, path))
2140 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2141 const char *id = view->id;
2143 if (!string_format(view->cmd, format, id, id, id, id, id))
2146 /* Put the current ref_* value to the view title ref
2147 * member. This is needed by the blob view. Most other
2148 * views sets it automatically after loading because the
2149 * first line is a commit line. */
2150 string_copy_rev(view->ref, view->id);
2153 /* Special case for the pager view. */
2155 view->pipe = opt_pipe;
2158 view->pipe = popen(view->cmd, "r");
2164 set_nonblocking_input(TRUE);
2169 string_copy_rev(view->vid, view->id);
2174 for (i = 0; i < view->lines; i++)
2175 if (view->line[i].data)
2176 free(view->line[i].data);
2182 view->start_time = time(NULL);
2187 #define ITEM_CHUNK_SIZE 256
2189 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2191 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2192 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2194 if (mem == NULL || num_chunks != num_chunks_new) {
2195 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2196 mem = realloc(mem, *size * item_size);
2202 static struct line *
2203 realloc_lines(struct view *view, size_t line_size)
2205 size_t alloc = view->line_alloc;
2206 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2207 sizeof(*view->line));
2213 view->line_alloc = alloc;
2214 view->line_size = line_size;
2219 update_view(struct view *view)
2221 char in_buffer[BUFSIZ];
2222 char out_buffer[BUFSIZ * 2];
2224 /* The number of lines to read. If too low it will cause too much
2225 * redrawing (and possible flickering), if too high responsiveness
2227 unsigned long lines = view->height;
2228 int redraw_from = -1;
2233 /* Only redraw if lines are visible. */
2234 if (view->offset + view->height >= view->lines)
2235 redraw_from = view->lines - view->offset;
2237 /* FIXME: This is probably not perfect for backgrounded views. */
2238 if (!realloc_lines(view, view->lines + lines))
2241 while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) {
2242 size_t linelen = strlen(line);
2245 line[linelen - 1] = 0;
2247 if (opt_iconv != ICONV_NONE) {
2248 ICONV_CONST char *inbuf = line;
2249 size_t inlen = linelen;
2251 char *outbuf = out_buffer;
2252 size_t outlen = sizeof(out_buffer);
2256 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2257 if (ret != (size_t) -1) {
2259 linelen = strlen(out_buffer);
2263 if (!view->ops->read(view, line))
2273 lines = view->lines;
2274 for (digits = 0; lines; digits++)
2277 /* Keep the displayed view in sync with line number scaling. */
2278 if (digits != view->digits) {
2279 view->digits = digits;
2284 if (!view_is_displayed(view))
2287 if (view == VIEW(REQ_VIEW_TREE)) {
2288 /* Clear the view and redraw everything since the tree sorting
2289 * might have rearranged things. */
2292 } else if (redraw_from >= 0) {
2293 /* If this is an incremental update, redraw the previous line
2294 * since for commits some members could have changed when
2295 * loading the main view. */
2296 if (redraw_from > 0)
2299 /* Since revision graph visualization requires knowledge
2300 * about the parent commit, it causes a further one-off
2301 * needed to be redrawn for incremental updates. */
2302 if (redraw_from > 0 && opt_rev_graph)
2305 /* Incrementally draw avoids flickering. */
2306 redraw_view_from(view, redraw_from);
2309 if (view == VIEW(REQ_VIEW_BLAME))
2310 redraw_view_dirty(view);
2312 /* Update the title _after_ the redraw so that if the redraw picks up a
2313 * commit reference in view->ref it'll be available here. */
2314 update_view_title(view);
2317 if (ferror(view->pipe)) {
2318 report("Failed to read: %s", strerror(errno));
2321 } else if (feof(view->pipe)) {
2329 report("Allocation failure");
2332 if (view->ops->read(view, NULL))
2337 static struct line *
2338 add_line_data(struct view *view, void *data, enum line_type type)
2340 struct line *line = &view->line[view->lines++];
2342 memset(line, 0, sizeof(*line));
2349 static struct line *
2350 add_line_text(struct view *view, char *data, enum line_type type)
2353 data = strdup(data);
2355 return data ? add_line_data(view, data, type) : NULL;
2364 OPEN_DEFAULT = 0, /* Use default view switching. */
2365 OPEN_SPLIT = 1, /* Split current view. */
2366 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2367 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2368 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2372 open_view(struct view *prev, enum request request, enum open_flags flags)
2374 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2375 bool split = !!(flags & OPEN_SPLIT);
2376 bool reload = !!(flags & OPEN_RELOAD);
2377 bool nomaximize = !!(flags & OPEN_NOMAXIMIZE);
2378 struct view *view = VIEW(request);
2379 int nviews = displayed_views();
2380 struct view *base_view = display[0];
2382 if (view == prev && nviews == 1 && !reload) {
2383 report("Already in %s view", view->name);
2387 if (view->git_dir && !opt_git_dir[0]) {
2388 report("The %s view is disabled in pager view", view->name);
2396 } else if (!nomaximize) {
2397 /* Maximize the current view. */
2398 memset(display, 0, sizeof(display));
2400 display[current_view] = view;
2403 /* Resize the view when switching between split- and full-screen,
2404 * or when switching between two different full-screen views. */
2405 if (nviews != displayed_views() ||
2406 (nviews == 1 && base_view != display[0]))
2409 if (view->ops->open) {
2410 if (!view->ops->open(view)) {
2411 report("Failed to load %s view", view->name);
2415 } else if ((reload || strcmp(view->vid, view->id)) &&
2416 !begin_update(view)) {
2417 report("Failed to load %s view", view->name);
2421 if (split && prev->lineno - prev->offset >= prev->height) {
2422 /* Take the title line into account. */
2423 int lines = prev->lineno - prev->offset - prev->height + 1;
2425 /* Scroll the view that was split if the current line is
2426 * outside the new limited view. */
2427 do_scroll_view(prev, lines);
2430 if (prev && view != prev) {
2431 if (split && !backgrounded) {
2432 /* "Blur" the previous view. */
2433 update_view_title(prev);
2436 view->parent = prev;
2439 if (view->pipe && view->lines == 0) {
2440 /* Clear the old view and let the incremental updating refill
2449 /* If the view is backgrounded the above calls to report()
2450 * won't redraw the view title. */
2452 update_view_title(view);
2456 open_external_viewer(const char *cmd)
2458 def_prog_mode(); /* save current tty modes */
2459 endwin(); /* restore original tty modes */
2461 fprintf(stderr, "Press Enter to continue");
2468 open_mergetool(const char *file)
2470 char cmd[SIZEOF_STR];
2471 char file_sq[SIZEOF_STR];
2473 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2474 string_format(cmd, "git mergetool %s", file_sq)) {
2475 open_external_viewer(cmd);
2480 open_editor(bool from_root, const char *file)
2482 char cmd[SIZEOF_STR];
2483 char file_sq[SIZEOF_STR];
2485 char *prefix = from_root ? opt_cdup : "";
2487 editor = getenv("GIT_EDITOR");
2488 if (!editor && *opt_editor)
2489 editor = opt_editor;
2491 editor = getenv("VISUAL");
2493 editor = getenv("EDITOR");
2497 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2498 string_format(cmd, "%s %s%s", editor, prefix, file_sq)) {
2499 open_external_viewer(cmd);
2504 open_run_request(enum request request)
2506 struct run_request *req = get_run_request(request);
2507 char buf[SIZEOF_STR * 2];
2512 report("Unknown run request");
2520 char *next = strstr(cmd, "%(");
2521 int len = next - cmd;
2528 } else if (!strncmp(next, "%(head)", 7)) {
2531 } else if (!strncmp(next, "%(commit)", 9)) {
2534 } else if (!strncmp(next, "%(blob)", 7)) {
2538 report("Unknown replacement in run request: `%s`", req->cmd);
2542 if (!string_format_from(buf, &bufpos, "%.*s%s", len, cmd, value))
2546 next = strchr(next, ')') + 1;
2550 open_external_viewer(buf);
2554 * User request switch noodle
2558 view_driver(struct view *view, enum request request)
2562 if (request == REQ_NONE) {
2567 if (request > REQ_NONE) {
2568 open_run_request(request);
2569 /* FIXME: When all views can refresh always do this. */
2570 if (view == VIEW(REQ_VIEW_STATUS) ||
2571 view == VIEW(REQ_VIEW_STAGE))
2572 request = REQ_REFRESH;
2577 if (view && view->lines) {
2578 request = view->ops->request(view, request, &view->line[view->lineno]);
2579 if (request == REQ_NONE)
2586 case REQ_MOVE_PAGE_UP:
2587 case REQ_MOVE_PAGE_DOWN:
2588 case REQ_MOVE_FIRST_LINE:
2589 case REQ_MOVE_LAST_LINE:
2590 move_view(view, request);
2593 case REQ_SCROLL_LINE_DOWN:
2594 case REQ_SCROLL_LINE_UP:
2595 case REQ_SCROLL_PAGE_DOWN:
2596 case REQ_SCROLL_PAGE_UP:
2597 scroll_view(view, request);
2600 case REQ_VIEW_BLAME:
2602 report("No file chosen, press %s to open tree view",
2603 get_key(REQ_VIEW_TREE));
2606 open_view(view, request, OPEN_DEFAULT);
2611 report("No file chosen, press %s to open tree view",
2612 get_key(REQ_VIEW_TREE));
2615 open_view(view, request, OPEN_DEFAULT);
2618 case REQ_VIEW_PAGER:
2619 if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2620 report("No pager content, press %s to run command from prompt",
2621 get_key(REQ_PROMPT));
2624 open_view(view, request, OPEN_DEFAULT);
2627 case REQ_VIEW_STAGE:
2628 if (!VIEW(REQ_VIEW_STAGE)->lines) {
2629 report("No stage content, press %s to open the status view and choose file",
2630 get_key(REQ_VIEW_STATUS));
2633 open_view(view, request, OPEN_DEFAULT);
2636 case REQ_VIEW_STATUS:
2637 if (opt_is_inside_work_tree == FALSE) {
2638 report("The status view requires a working tree");
2641 open_view(view, request, OPEN_DEFAULT);
2649 open_view(view, request, OPEN_DEFAULT);
2654 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2656 if ((view == VIEW(REQ_VIEW_DIFF) &&
2657 view->parent == VIEW(REQ_VIEW_MAIN)) ||
2658 (view == VIEW(REQ_VIEW_DIFF) &&
2659 view->parent == VIEW(REQ_VIEW_BLAME)) ||
2660 (view == VIEW(REQ_VIEW_STAGE) &&
2661 view->parent == VIEW(REQ_VIEW_STATUS)) ||
2662 (view == VIEW(REQ_VIEW_BLOB) &&
2663 view->parent == VIEW(REQ_VIEW_TREE))) {
2666 view = view->parent;
2667 line = view->lineno;
2668 move_view(view, request);
2669 if (view_is_displayed(view))
2670 update_view_title(view);
2671 if (line != view->lineno)
2672 view->ops->request(view, REQ_ENTER,
2673 &view->line[view->lineno]);
2676 move_view(view, request);
2682 int nviews = displayed_views();
2683 int next_view = (current_view + 1) % nviews;
2685 if (next_view == current_view) {
2686 report("Only one view is displayed");
2690 current_view = next_view;
2691 /* Blur out the title of the previous view. */
2692 update_view_title(view);
2697 report("Refreshing is not yet supported for the %s view", view->name);
2701 if (displayed_views() == 2)
2702 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
2705 case REQ_TOGGLE_LINENO:
2706 opt_line_number = !opt_line_number;
2710 case REQ_TOGGLE_DATE:
2711 opt_date = !opt_date;
2715 case REQ_TOGGLE_AUTHOR:
2716 opt_author = !opt_author;
2720 case REQ_TOGGLE_REV_GRAPH:
2721 opt_rev_graph = !opt_rev_graph;
2725 case REQ_TOGGLE_REFS:
2726 opt_show_refs = !opt_show_refs;
2731 /* Always reload^Wrerun commands from the prompt. */
2732 open_view(view, opt_request, OPEN_RELOAD);
2736 case REQ_SEARCH_BACK:
2737 search_view(view, request);
2742 find_next(view, request);
2745 case REQ_STOP_LOADING:
2746 for (i = 0; i < ARRAY_SIZE(views); i++) {
2749 report("Stopped loading the %s view", view->name),
2754 case REQ_SHOW_VERSION:
2755 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
2758 case REQ_SCREEN_RESIZE:
2761 case REQ_SCREEN_REDRAW:
2766 report("Nothing to edit");
2771 report("Nothing to enter");
2775 case REQ_VIEW_CLOSE:
2776 /* XXX: Mark closed views by letting view->parent point to the
2777 * view itself. Parents to closed view should never be
2780 view->parent->parent != view->parent) {
2781 memset(display, 0, sizeof(display));
2783 display[current_view] = view->parent;
2784 view->parent = view;
2794 /* An unknown key will show most commonly used commands. */
2795 report("Unknown key, press 'h' for help");
2808 pager_draw(struct view *view, struct line *line, unsigned int lineno)
2810 char *text = line->data;
2813 if (opt_line_number) {
2814 col += draw_lineno(view, lineno, view->width);
2815 if (col >= view->width)
2819 draw_text(view, line->type, text, view->width - col, TRUE);
2824 add_describe_ref(char *buf, size_t *bufpos, char *commit_id, const char *sep)
2826 char refbuf[SIZEOF_STR];
2830 if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id))
2833 pipe = popen(refbuf, "r");
2837 if ((ref = fgets(refbuf, sizeof(refbuf), pipe)))
2838 ref = chomp_string(ref);
2844 /* This is the only fatal call, since it can "corrupt" the buffer. */
2845 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
2852 add_pager_refs(struct view *view, struct line *line)
2854 char buf[SIZEOF_STR];
2855 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
2857 size_t bufpos = 0, refpos = 0;
2858 const char *sep = "Refs: ";
2859 bool is_tag = FALSE;
2861 assert(line->type == LINE_COMMIT);
2863 refs = get_refs(commit_id);
2865 if (view == VIEW(REQ_VIEW_DIFF))
2866 goto try_add_describe_ref;
2871 struct ref *ref = refs[refpos];
2872 char *fmt = ref->tag ? "%s[%s]" :
2873 ref->remote ? "%s<%s>" : "%s%s";
2875 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
2880 } while (refs[refpos++]->next);
2882 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
2883 try_add_describe_ref:
2884 /* Add <tag>-g<commit_id> "fake" reference. */
2885 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
2892 if (!realloc_lines(view, view->line_size + 1))
2895 add_line_text(view, buf, LINE_PP_REFS);
2899 pager_read(struct view *view, char *data)
2906 line = add_line_text(view, data, get_line_type(data));
2910 if (line->type == LINE_COMMIT &&
2911 (view == VIEW(REQ_VIEW_DIFF) ||
2912 view == VIEW(REQ_VIEW_LOG)))
2913 add_pager_refs(view, line);
2919 pager_request(struct view *view, enum request request, struct line *line)
2923 if (request != REQ_ENTER)
2926 if (line->type == LINE_COMMIT &&
2927 (view == VIEW(REQ_VIEW_LOG) ||
2928 view == VIEW(REQ_VIEW_PAGER))) {
2929 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
2933 /* Always scroll the view even if it was split. That way
2934 * you can use Enter to scroll through the log view and
2935 * split open each commit diff. */
2936 scroll_view(view, REQ_SCROLL_LINE_DOWN);
2938 /* FIXME: A minor workaround. Scrolling the view will call report("")
2939 * but if we are scrolling a non-current view this won't properly
2940 * update the view title. */
2942 update_view_title(view);
2948 pager_grep(struct view *view, struct line *line)
2951 char *text = line->data;
2956 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
2963 pager_select(struct view *view, struct line *line)
2965 if (line->type == LINE_COMMIT) {
2966 char *text = (char *)line->data + STRING_SIZE("commit ");
2968 if (view != VIEW(REQ_VIEW_PAGER))
2969 string_copy_rev(view->ref, text);
2970 string_copy_rev(ref_commit, text);
2974 static struct view_ops pager_ops = {
2990 help_open(struct view *view)
2993 int lines = ARRAY_SIZE(req_info) + 2;
2996 if (view->lines > 0)
2999 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3000 if (!req_info[i].request)
3003 lines += run_requests + 1;
3005 view->line = calloc(lines, sizeof(*view->line));
3009 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3011 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3014 if (req_info[i].request == REQ_NONE)
3017 if (!req_info[i].request) {
3018 add_line_text(view, "", LINE_DEFAULT);
3019 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3023 key = get_key(req_info[i].request);
3025 key = "(no key defined)";
3027 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
3030 add_line_text(view, buf, LINE_DEFAULT);
3034 add_line_text(view, "", LINE_DEFAULT);
3035 add_line_text(view, "External commands:", LINE_DEFAULT);
3038 for (i = 0; i < run_requests; i++) {
3039 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3045 key = get_key_name(req->key);
3047 key = "(no key defined)";
3049 if (!string_format(buf, " %-10s %-14s `%s`",
3050 keymap_table[req->keymap].name,
3054 add_line_text(view, buf, LINE_DEFAULT);
3060 static struct view_ops help_ops = {
3075 struct tree_stack_entry {
3076 struct tree_stack_entry *prev; /* Entry below this in the stack */
3077 unsigned long lineno; /* Line number to restore */
3078 char *name; /* Position of name in opt_path */
3081 /* The top of the path stack. */
3082 static struct tree_stack_entry *tree_stack = NULL;
3083 unsigned long tree_lineno = 0;
3086 pop_tree_stack_entry(void)
3088 struct tree_stack_entry *entry = tree_stack;
3090 tree_lineno = entry->lineno;
3092 tree_stack = entry->prev;
3097 push_tree_stack_entry(char *name, unsigned long lineno)
3099 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3100 size_t pathlen = strlen(opt_path);
3105 entry->prev = tree_stack;
3106 entry->name = opt_path + pathlen;
3109 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3110 pop_tree_stack_entry();
3114 /* Move the current line to the first tree entry. */
3116 entry->lineno = lineno;
3119 /* Parse output from git-ls-tree(1):
3121 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3122 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3123 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3124 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3127 #define SIZEOF_TREE_ATTR \
3128 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3130 #define TREE_UP_FORMAT "040000 tree %s\t.."
3133 tree_compare_entry(enum line_type type1, char *name1,
3134 enum line_type type2, char *name2)
3136 if (type1 != type2) {
3137 if (type1 == LINE_TREE_DIR)
3142 return strcmp(name1, name2);
3146 tree_path(struct line *line)
3148 char *path = line->data;
3150 return path + SIZEOF_TREE_ATTR;
3154 tree_read(struct view *view, char *text)
3156 size_t textlen = text ? strlen(text) : 0;
3157 char buf[SIZEOF_STR];
3159 enum line_type type;
3160 bool first_read = view->lines == 0;
3164 if (textlen <= SIZEOF_TREE_ATTR)
3167 type = text[STRING_SIZE("100644 ")] == 't'
3168 ? LINE_TREE_DIR : LINE_TREE_FILE;
3171 /* Add path info line */
3172 if (!string_format(buf, "Directory path /%s", opt_path) ||
3173 !realloc_lines(view, view->line_size + 1) ||
3174 !add_line_text(view, buf, LINE_DEFAULT))
3177 /* Insert "link" to parent directory. */
3179 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
3180 !realloc_lines(view, view->line_size + 1) ||
3181 !add_line_text(view, buf, LINE_TREE_DIR))
3186 /* Strip the path part ... */
3188 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3189 size_t striplen = strlen(opt_path);
3190 char *path = text + SIZEOF_TREE_ATTR;
3192 if (pathlen > striplen)
3193 memmove(path, path + striplen,
3194 pathlen - striplen + 1);
3197 /* Skip "Directory ..." and ".." line. */
3198 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
3199 struct line *line = &view->line[pos];
3200 char *path1 = tree_path(line);
3201 char *path2 = text + SIZEOF_TREE_ATTR;
3202 int cmp = tree_compare_entry(line->type, path1, type, path2);
3207 text = strdup(text);
3211 if (view->lines > pos)
3212 memmove(&view->line[pos + 1], &view->line[pos],
3213 (view->lines - pos) * sizeof(*line));
3215 line = &view->line[pos];
3222 if (!add_line_text(view, text, type))
3225 if (tree_lineno > view->lineno) {
3226 view->lineno = tree_lineno;
3234 tree_request(struct view *view, enum request request, struct line *line)
3236 enum open_flags flags;
3238 if (request == REQ_VIEW_BLAME) {
3239 char *filename = tree_path(line);
3241 if (line->type == LINE_TREE_DIR) {
3242 report("Cannot show blame for directory %s", opt_path);
3246 string_copy(opt_ref, view->vid);
3247 string_format(opt_file, "%s%s", opt_path, filename);
3250 if (request == REQ_TREE_PARENT) {
3253 request = REQ_ENTER;
3254 line = &view->line[1];
3256 /* quit view if at top of tree */
3257 return REQ_VIEW_CLOSE;
3260 if (request != REQ_ENTER)
3263 /* Cleanup the stack if the tree view is at a different tree. */
3264 while (!*opt_path && tree_stack)
3265 pop_tree_stack_entry();
3267 switch (line->type) {
3269 /* Depending on whether it is a subdir or parent (updir?) link
3270 * mangle the path buffer. */
3271 if (line == &view->line[1] && *opt_path) {
3272 pop_tree_stack_entry();
3275 char *basename = tree_path(line);
3277 push_tree_stack_entry(basename, view->lineno);
3280 /* Trees and subtrees share the same ID, so they are not not
3281 * unique like blobs. */
3282 flags = OPEN_RELOAD;
3283 request = REQ_VIEW_TREE;
3286 case LINE_TREE_FILE:
3287 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3288 request = REQ_VIEW_BLOB;
3295 open_view(view, request, flags);
3296 if (request == REQ_VIEW_TREE) {
3297 view->lineno = tree_lineno;
3304 tree_select(struct view *view, struct line *line)
3306 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3308 if (line->type == LINE_TREE_FILE) {
3309 string_copy_rev(ref_blob, text);
3311 } else if (line->type != LINE_TREE_DIR) {
3315 string_copy_rev(view->ref, text);
3318 static struct view_ops tree_ops = {
3329 blob_read(struct view *view, char *line)
3333 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3336 static struct view_ops blob_ops = {
3349 * Loading the blame view is a two phase job:
3351 * 1. File content is read either using opt_file from the
3352 * filesystem or using git-cat-file.
3353 * 2. Then blame information is incrementally added by
3354 * reading output from git-blame.
3357 struct blame_commit {
3358 char id[SIZEOF_REV]; /* SHA1 ID. */
3359 char title[128]; /* First line of the commit message. */
3360 char author[75]; /* Author of the commit. */
3361 struct tm time; /* Date from the author ident. */
3362 char filename[128]; /* Name of file. */
3366 struct blame_commit *commit;
3367 unsigned int header:1;
3371 #define BLAME_CAT_FILE_CMD "git cat-file blob %s:%s"
3372 #define BLAME_INCREMENTAL_CMD "git blame --incremental %s %s"
3375 blame_open(struct view *view)
3377 char path[SIZEOF_STR];
3378 char ref[SIZEOF_STR] = "";
3380 if (sq_quote(path, 0, opt_file) >= sizeof(path))
3383 if (*opt_ref && sq_quote(ref, 0, opt_ref) >= sizeof(ref))
3387 if (!string_format(view->cmd, BLAME_CAT_FILE_CMD, ref, path))
3390 view->pipe = fopen(opt_file, "r");
3392 !string_format(view->cmd, BLAME_CAT_FILE_CMD, "HEAD", path))
3397 view->pipe = popen(view->cmd, "r");
3401 if (!string_format(view->cmd, BLAME_INCREMENTAL_CMD, ref, path))
3404 string_format(view->ref, "%s ...", opt_file);
3405 string_copy_rev(view->vid, opt_file);
3406 set_nonblocking_input(TRUE);
3411 for (i = 0; i < view->lines; i++)
3412 free(view->line[i].data);
3416 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
3417 view->offset = view->lines = view->lineno = 0;
3419 view->start_time = time(NULL);
3424 static struct blame_commit *
3425 get_blame_commit(struct view *view, const char *id)
3429 for (i = 0; i < view->lines; i++) {
3430 struct blame *blame = view->line[i].data;
3435 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3436 return blame->commit;
3440 struct blame_commit *commit = calloc(1, sizeof(*commit));
3443 string_ncopy(commit->id, id, SIZEOF_REV);
3449 parse_number(char **posref, size_t *number, size_t min, size_t max)
3451 char *pos = *posref;
3454 pos = strchr(pos + 1, ' ');
3455 if (!pos || !isdigit(pos[1]))
3457 *number = atoi(pos + 1);
3458 if (*number < min || *number > max)
3465 static struct blame_commit *
3466 parse_blame_commit(struct view *view, char *text, int *blamed)
3468 struct blame_commit *commit;
3469 struct blame *blame;
3470 char *pos = text + SIZEOF_REV - 1;
3474 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3477 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3478 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3481 commit = get_blame_commit(view, text);
3487 struct line *line = &view->line[lineno + group - 1];
3490 blame->commit = commit;
3491 blame->header = !group;
3499 blame_read_file(struct view *view, char *line)
3504 if (view->lines > 0)
3505 pipe = popen(view->cmd, "r");
3506 else if (!view->parent)
3507 die("No blame exist for %s", view->vid);
3510 report("Failed to load blame data");
3519 size_t linelen = strlen(line);
3520 struct blame *blame = malloc(sizeof(*blame) + linelen);
3525 blame->commit = NULL;
3526 strncpy(blame->text, line, linelen);
3527 blame->text[linelen] = 0;
3528 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3533 match_blame_header(const char *name, char **line)
3535 size_t namelen = strlen(name);
3536 bool matched = !strncmp(name, *line, namelen);
3545 blame_read(struct view *view, char *line)
3547 static struct blame_commit *commit = NULL;
3548 static int blamed = 0;
3549 static time_t author_time;
3552 return blame_read_file(view, line);
3558 string_format(view->ref, "%s", view->vid);
3559 if (view_is_displayed(view)) {
3560 update_view_title(view);
3561 redraw_view_from(view, 0);
3567 commit = parse_blame_commit(view, line, &blamed);
3568 string_format(view->ref, "%s %2d%%", view->vid,
3569 blamed * 100 / view->lines);
3571 } else if (match_blame_header("author ", &line)) {
3572 string_ncopy(commit->author, line, strlen(line));
3574 } else if (match_blame_header("author-time ", &line)) {
3575 author_time = (time_t) atol(line);
3577 } else if (match_blame_header("author-tz ", &line)) {
3580 tz = ('0' - line[1]) * 60 * 60 * 10;
3581 tz += ('0' - line[2]) * 60 * 60;
3582 tz += ('0' - line[3]) * 60;
3583 tz += ('0' - line[4]) * 60;
3589 gmtime_r(&author_time, &commit->time);
3591 } else if (match_blame_header("summary ", &line)) {
3592 string_ncopy(commit->title, line, strlen(line));
3594 } else if (match_blame_header("filename ", &line)) {
3595 string_ncopy(commit->filename, line, strlen(line));
3603 blame_draw(struct view *view, struct line *line, unsigned int lineno)
3605 struct blame *blame = line->data;
3606 struct tm *time = NULL;
3607 char *id = NULL, *author = NULL;
3610 if (blame->commit && *blame->commit->filename) {
3611 id = blame->commit->id;
3612 author = blame->commit->author;
3613 time = &blame->commit->time;
3617 col += draw_date(view, time, view->width);
3618 if (col >= view->width)
3623 int max = MIN(AUTHOR_COLS - 1, view->width - col);
3625 set_view_attr(view, LINE_MAIN_AUTHOR);
3627 draw_text(view, LINE_MAIN_AUTHOR, author, max, TRUE);
3629 if (col >= view->width)
3631 wmove(view->win, lineno, col);
3635 int max = MIN(ID_COLS - 1, view->width - col);
3637 set_view_attr(view, LINE_BLAME_ID);
3639 draw_text(view, LINE_BLAME_ID, id, max, FALSE);
3641 if (col >= view->width)
3643 wmove(view->win, lineno, col);
3646 col += draw_lineno(view, lineno, view->width - col);
3647 if (col >= view->width)
3650 col += draw_text(view, LINE_DEFAULT, blame->text, view->width - col, TRUE);
3655 blame_request(struct view *view, enum request request, struct line *line)
3657 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3658 struct blame *blame = line->data;
3662 if (!blame->commit) {
3663 report("No commit loaded yet");
3667 if (!strcmp(blame->commit->id, NULL_ID)) {
3668 char path[SIZEOF_STR];
3670 if (sq_quote(path, 0, view->vid) >= sizeof(path))
3672 string_format(opt_cmd, "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s 2>/dev/null", path);
3675 open_view(view, REQ_VIEW_DIFF, flags);
3686 blame_grep(struct view *view, struct line *line)
3688 struct blame *blame = line->data;
3689 struct blame_commit *commit = blame->commit;
3692 #define MATCH(text, on) \
3693 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3696 char buf[DATE_COLS + 1];
3698 if (MATCH(commit->title, 1) ||
3699 MATCH(commit->author, opt_author) ||
3700 MATCH(commit->id, opt_date))
3703 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
3708 return MATCH(blame->text, 1);
3714 blame_select(struct view *view, struct line *line)
3716 struct blame *blame = line->data;
3717 struct blame_commit *commit = blame->commit;
3722 if (!strcmp(commit->id, NULL_ID))
3723 string_ncopy(ref_commit, "HEAD", 4);
3725 string_copy_rev(ref_commit, commit->id);
3728 static struct view_ops blame_ops = {
3746 char rev[SIZEOF_REV];
3747 char name[SIZEOF_STR];
3751 char rev[SIZEOF_REV];
3752 char name[SIZEOF_STR];
3756 static char status_onbranch[SIZEOF_STR];
3757 static struct status stage_status;
3758 static enum line_type stage_line_type;
3760 /* Get fields from the diff line:
3761 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3764 status_get_diff(struct status *file, char *buf, size_t bufsize)
3766 char *old_mode = buf + 1;
3767 char *new_mode = buf + 8;
3768 char *old_rev = buf + 15;
3769 char *new_rev = buf + 56;
3770 char *status = buf + 97;
3773 old_mode[-1] != ':' ||
3774 new_mode[-1] != ' ' ||
3775 old_rev[-1] != ' ' ||
3776 new_rev[-1] != ' ' ||
3780 file->status = *status;
3782 string_copy_rev(file->old.rev, old_rev);
3783 string_copy_rev(file->new.rev, new_rev);
3785 file->old.mode = strtoul(old_mode, NULL, 8);
3786 file->new.mode = strtoul(new_mode, NULL, 8);
3788 file->old.name[0] = file->new.name[0] = 0;
3794 status_run(struct view *view, const char cmd[], char status, enum line_type type)
3796 struct status *file = NULL;
3797 struct status *unmerged = NULL;
3798 char buf[SIZEOF_STR * 4];
3802 pipe = popen(cmd, "r");
3806 add_line_data(view, NULL, type);
3808 while (!feof(pipe) && !ferror(pipe)) {
3812 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3815 bufsize += readsize;
3817 /* Process while we have NUL chars. */
3818 while ((sep = memchr(buf, 0, bufsize))) {
3819 size_t sepsize = sep - buf + 1;
3822 if (!realloc_lines(view, view->line_size + 1))
3825 file = calloc(1, sizeof(*file));
3829 add_line_data(view, file, type);
3832 /* Parse diff info part. */
3834 file->status = status;
3836 string_copy(file->old.rev, NULL_ID);
3838 } else if (!file->status) {
3839 if (!status_get_diff(file, buf, sepsize))
3843 memmove(buf, sep + 1, bufsize);
3845 sep = memchr(buf, 0, bufsize);
3848 sepsize = sep - buf + 1;
3850 /* Collapse all 'M'odified entries that
3851 * follow a associated 'U'nmerged entry.
3853 if (file->status == 'U') {
3856 } else if (unmerged) {
3857 int collapse = !strcmp(buf, unmerged->new.name);
3868 /* Grab the old name for rename/copy. */
3869 if (!*file->old.name &&
3870 (file->status == 'R' || file->status == 'C')) {
3871 sepsize = sep - buf + 1;
3872 string_ncopy(file->old.name, buf, sepsize);
3874 memmove(buf, sep + 1, bufsize);
3876 sep = memchr(buf, 0, bufsize);
3879 sepsize = sep - buf + 1;
3882 /* git-ls-files just delivers a NUL separated
3883 * list of file names similar to the second half
3884 * of the git-diff-* output. */
3885 string_ncopy(file->new.name, buf, sepsize);
3886 if (!*file->old.name)
3887 string_copy(file->old.name, file->new.name);
3889 memmove(buf, sep + 1, bufsize);
3900 if (!view->line[view->lines - 1].data)
3901 add_line_data(view, NULL, LINE_STAT_NONE);
3907 /* Don't show unmerged entries in the staged section. */
3908 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD"
3909 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
3910 #define STATUS_LIST_OTHER_CMD \
3911 "git ls-files -z --others --exclude-per-directory=.gitignore"
3912 #define STATUS_LIST_NO_HEAD_CMD \
3913 "git ls-files -z --cached --exclude-per-directory=.gitignore"
3915 #define STATUS_DIFF_INDEX_SHOW_CMD \
3916 "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null"
3918 #define STATUS_DIFF_FILES_SHOW_CMD \
3919 "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null"
3921 #define STATUS_DIFF_NO_HEAD_SHOW_CMD \
3922 "git diff --no-color --patch-with-stat /dev/null %s 2>/dev/null"
3924 /* First parse staged info using git-diff-index(1), then parse unstaged
3925 * info using git-diff-files(1), and finally untracked files using
3926 * git-ls-files(1). */
3928 status_open(struct view *view)
3930 struct stat statbuf;
3931 char exclude[SIZEOF_STR];
3932 char indexcmd[SIZEOF_STR] = STATUS_DIFF_INDEX_CMD;
3933 char othercmd[SIZEOF_STR] = STATUS_LIST_OTHER_CMD;
3934 unsigned long prev_lineno = view->lineno;
3935 char indexstatus = 0;
3938 for (i = 0; i < view->lines; i++)
3939 free(view->line[i].data);
3941 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
3944 if (!realloc_lines(view, view->line_size + 7))
3947 add_line_data(view, NULL, LINE_STAT_HEAD);
3949 string_copy(status_onbranch, "Initial commit");
3950 else if (!*opt_head)
3951 string_copy(status_onbranch, "Not currently on any branch");
3952 else if (!string_format(status_onbranch, "On branch %s", opt_head))
3956 string_copy(indexcmd, STATUS_LIST_NO_HEAD_CMD);
3960 if (!string_format(exclude, "%s/info/exclude", opt_git_dir))
3963 if (stat(exclude, &statbuf) >= 0) {
3964 size_t cmdsize = strlen(othercmd);
3966 if (!string_format_from(othercmd, &cmdsize, " %s", "--exclude-from=") ||
3967 sq_quote(othercmd, cmdsize, exclude) >= sizeof(othercmd))
3970 cmdsize = strlen(indexcmd);
3972 (!string_format_from(indexcmd, &cmdsize, " %s", "--exclude-from=") ||
3973 sq_quote(indexcmd, cmdsize, exclude) >= sizeof(indexcmd)))
3977 system("git update-index -q --refresh >/dev/null 2>/dev/null");
3979 if (!status_run(view, indexcmd, indexstatus, LINE_STAT_STAGED) ||
3980 !status_run(view, STATUS_DIFF_FILES_CMD, 0, LINE_STAT_UNSTAGED) ||
3981 !status_run(view, othercmd, '?', LINE_STAT_UNTRACKED))
3984 /* If all went well restore the previous line number to stay in
3985 * the context or select a line with something that can be
3987 if (prev_lineno >= view->lines)
3988 prev_lineno = view->lines - 1;
3989 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
3991 while (prev_lineno > 0 && !view->line[prev_lineno].data)
3994 /* If the above fails, always skip the "On branch" line. */
3995 if (prev_lineno < view->lines)
3996 view->lineno = prev_lineno;
4000 if (view->lineno < view->offset)
4001 view->offset = view->lineno;
4002 else if (view->offset + view->height <= view->lineno)
4003 view->offset = view->lineno - view->height + 1;
4009 status_draw(struct view *view, struct line *line, unsigned int lineno)
4011 struct status *status = line->data;
4012 enum line_type type;
4017 switch (line->type) {
4018 case LINE_STAT_STAGED:
4019 type = LINE_STAT_SECTION;
4020 text = "Changes to be committed:";
4023 case LINE_STAT_UNSTAGED:
4024 type = LINE_STAT_SECTION;
4025 text = "Changed but not updated:";
4028 case LINE_STAT_UNTRACKED:
4029 type = LINE_STAT_SECTION;
4030 text = "Untracked files:";
4033 case LINE_STAT_NONE:
4034 type = LINE_DEFAULT;
4035 text = " (no files)";
4038 case LINE_STAT_HEAD:
4039 type = LINE_STAT_HEAD;
4040 text = status_onbranch;
4047 char buf[] = { status->status, ' ', ' ', ' ', 0 };
4049 col += draw_text(view, line->type, buf, view->width, TRUE);
4050 type = LINE_DEFAULT;
4051 text = status->new.name;
4054 draw_text(view, type, text, view->width - col, TRUE);
4059 status_enter(struct view *view, struct line *line)
4061 struct status *status = line->data;
4062 char oldpath[SIZEOF_STR] = "";
4063 char newpath[SIZEOF_STR] = "";
4066 enum open_flags split;
4068 if (line->type == LINE_STAT_NONE ||
4069 (!status && line[1].type == LINE_STAT_NONE)) {
4070 report("No file to diff");
4075 if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath))
4077 /* Diffs for unmerged entries are empty when pasing the
4078 * new path, so leave it empty. */
4079 if (status->status != 'U' &&
4080 sq_quote(newpath, 0, status->new.name) >= sizeof(newpath))
4085 line->type != LINE_STAT_UNTRACKED &&
4086 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
4089 switch (line->type) {
4090 case LINE_STAT_STAGED:
4092 if (!string_format_from(opt_cmd, &cmdsize,
4093 STATUS_DIFF_NO_HEAD_SHOW_CMD,
4097 if (!string_format_from(opt_cmd, &cmdsize,
4098 STATUS_DIFF_INDEX_SHOW_CMD,
4104 info = "Staged changes to %s";
4106 info = "Staged changes";
4109 case LINE_STAT_UNSTAGED:
4110 if (!string_format_from(opt_cmd, &cmdsize,
4111 STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath))
4114 info = "Unstaged changes to %s";
4116 info = "Unstaged changes";
4119 case LINE_STAT_UNTRACKED:
4124 report("No file to show");
4128 opt_pipe = fopen(status->new.name, "r");
4129 info = "Untracked file %s";
4132 case LINE_STAT_HEAD:
4136 die("line type %d not handled in switch", line->type);
4139 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4140 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | split);
4141 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4143 stage_status = *status;
4145 memset(&stage_status, 0, sizeof(stage_status));
4148 stage_line_type = line->type;
4149 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4156 status_exists(struct status *status, enum line_type type)
4158 struct view *view = VIEW(REQ_VIEW_STATUS);
4161 for (line = view->line; line < view->line + view->lines; line++) {
4162 struct status *pos = line->data;
4164 if (line->type == type && pos &&
4165 !strcmp(status->new.name, pos->new.name))
4174 status_update_prepare(enum line_type type)
4176 char cmd[SIZEOF_STR];
4180 type != LINE_STAT_UNTRACKED &&
4181 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4185 case LINE_STAT_STAGED:
4186 string_add(cmd, cmdsize, "git update-index -z --index-info");
4189 case LINE_STAT_UNSTAGED:
4190 case LINE_STAT_UNTRACKED:
4191 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
4195 die("line type %d not handled in switch", type);
4198 return popen(cmd, "w");
4202 status_update_write(FILE *pipe, struct status *status, enum line_type type)
4204 char buf[SIZEOF_STR];
4209 case LINE_STAT_STAGED:
4210 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4213 status->old.name, 0))
4217 case LINE_STAT_UNSTAGED:
4218 case LINE_STAT_UNTRACKED:
4219 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4224 die("line type %d not handled in switch", type);
4227 while (!ferror(pipe) && written < bufsize) {
4228 written += fwrite(buf + written, 1, bufsize - written, pipe);
4231 return written == bufsize;
4235 status_update_file(struct status *status, enum line_type type)
4237 FILE *pipe = status_update_prepare(type);
4243 result = status_update_write(pipe, status, type);
4249 status_update_files(struct view *view, struct line *line)
4251 FILE *pipe = status_update_prepare(line->type);
4253 struct line *pos = view->line + view->lines;
4260 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4263 for (file = 0, done = 0; result && file < files; line++, file++) {
4264 int almost_done = file * 100 / files;
4266 if (almost_done > done) {
4268 string_format(view->ref, "updating file %u of %u (%d%% done)",
4270 update_view_title(view);
4272 result = status_update_write(pipe, line->data, line->type);
4280 status_update(struct view *view)
4282 struct line *line = &view->line[view->lineno];
4284 assert(view->lines);
4287 /* This should work even for the "On branch" line. */
4288 if (line < view->line + view->lines && !line[1].data) {
4289 report("Nothing to update");
4293 if (!status_update_files(view, line + 1)) {
4294 report("Failed to update file status");
4298 } else if (!status_update_file(line->data, line->type)) {
4299 report("Failed to update file status");
4307 status_request(struct view *view, enum request request, struct line *line)
4309 struct status *status = line->data;
4312 case REQ_STATUS_UPDATE:
4313 if (!status_update(view))
4317 case REQ_STATUS_MERGE:
4318 if (!status || status->status != 'U') {
4319 report("Merging only possible for files with unmerged status ('U').");
4322 open_mergetool(status->new.name);
4329 open_editor(status->status != '?', status->new.name);
4332 case REQ_VIEW_BLAME:
4334 string_copy(opt_file, status->new.name);
4340 /* After returning the status view has been split to
4341 * show the stage view. No further reloading is
4343 status_enter(view, line);
4347 /* Simply reload the view. */
4354 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4360 status_select(struct view *view, struct line *line)
4362 struct status *status = line->data;
4363 char file[SIZEOF_STR] = "all files";
4367 if (status && !string_format(file, "'%s'", status->new.name))
4370 if (!status && line[1].type == LINE_STAT_NONE)
4373 switch (line->type) {
4374 case LINE_STAT_STAGED:
4375 text = "Press %s to unstage %s for commit";
4378 case LINE_STAT_UNSTAGED:
4379 text = "Press %s to stage %s for commit";
4382 case LINE_STAT_UNTRACKED:
4383 text = "Press %s to stage %s for addition";
4386 case LINE_STAT_HEAD:
4387 case LINE_STAT_NONE:
4388 text = "Nothing to update";
4392 die("line type %d not handled in switch", line->type);
4395 if (status && status->status == 'U') {
4396 text = "Press %s to resolve conflict in %s";
4397 key = get_key(REQ_STATUS_MERGE);
4400 key = get_key(REQ_STATUS_UPDATE);
4403 string_format(view->ref, text, key, file);
4407 status_grep(struct view *view, struct line *line)
4409 struct status *status = line->data;
4410 enum { S_STATUS, S_NAME, S_END } state;
4417 for (state = S_STATUS; state < S_END; state++) {
4421 case S_NAME: text = status->new.name; break;
4423 buf[0] = status->status;
4431 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4438 static struct view_ops status_ops = {
4450 stage_diff_line(FILE *pipe, struct line *line)
4452 char *buf = line->data;
4453 size_t bufsize = strlen(buf);
4456 while (!ferror(pipe) && written < bufsize) {
4457 written += fwrite(buf + written, 1, bufsize - written, pipe);
4462 return written == bufsize;
4466 stage_diff_write(FILE *pipe, struct line *line, struct line *end)
4468 while (line < end) {
4469 if (!stage_diff_line(pipe, line++))
4471 if (line->type == LINE_DIFF_CHUNK ||
4472 line->type == LINE_DIFF_HEADER)
4479 static struct line *
4480 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4482 for (; view->line < line; line--)
4483 if (line->type == type)
4490 stage_update_chunk(struct view *view, struct line *chunk)
4492 char cmd[SIZEOF_STR];
4494 struct line *diff_hdr;
4497 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4502 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4505 if (!string_format_from(cmd, &cmdsize,
4506 "git apply --whitespace=nowarn --cached %s - && "
4507 "git update-index -q --unmerged --refresh 2>/dev/null",
4508 stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
4511 pipe = popen(cmd, "w");
4515 if (!stage_diff_write(pipe, diff_hdr, chunk) ||
4516 !stage_diff_write(pipe, chunk, view->line + view->lines))
4521 return chunk ? TRUE : FALSE;
4525 stage_update(struct view *view, struct line *line)
4527 struct line *chunk = NULL;
4529 if (!opt_no_head && stage_line_type != LINE_STAT_UNTRACKED)
4530 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4533 if (!stage_update_chunk(view, chunk)) {
4534 report("Failed to apply chunk");
4538 } else if (!stage_status.status) {
4539 view = VIEW(REQ_VIEW_STATUS);
4541 for (line = view->line; line < view->line + view->lines; line++)
4542 if (line->type == stage_line_type)
4545 if (!status_update_files(view, line + 1)) {
4546 report("Failed to update files");
4550 } else if (!status_update_file(&stage_status, stage_line_type)) {
4551 report("Failed to update file");
4559 stage_request(struct view *view, enum request request, struct line *line)
4562 case REQ_STATUS_UPDATE:
4563 if (!stage_update(view, line))
4568 if (!stage_status.new.name[0])
4571 open_editor(stage_status.status != '?', stage_status.new.name);
4575 /* Reload everything ... */
4578 case REQ_VIEW_BLAME:
4579 if (stage_status.new.name[0]) {
4580 string_copy(opt_file, stage_status.new.name);
4586 return pager_request(view, request, line);
4592 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4594 /* Check whether the staged entry still exists, and close the
4595 * stage view if it doesn't. */
4596 if (!status_exists(&stage_status, stage_line_type))
4597 return REQ_VIEW_CLOSE;
4599 if (stage_line_type == LINE_STAT_UNTRACKED)
4600 opt_pipe = fopen(stage_status.new.name, "r");
4602 string_copy(opt_cmd, view->cmd);
4603 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4608 static struct view_ops stage_ops = {
4624 char id[SIZEOF_REV]; /* SHA1 ID. */
4625 char title[128]; /* First line of the commit message. */
4626 char author[75]; /* Author of the commit. */
4627 struct tm time; /* Date from the author ident. */
4628 struct ref **refs; /* Repository references. */
4629 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
4630 size_t graph_size; /* The width of the graph array. */
4631 bool has_parents; /* Rewritten --parents seen. */
4634 /* Size of rev graph with no "padding" columns */
4635 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
4638 struct rev_graph *prev, *next, *parents;
4639 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
4641 struct commit *commit;
4643 unsigned int boundary:1;
4646 /* Parents of the commit being visualized. */
4647 static struct rev_graph graph_parents[4];
4649 /* The current stack of revisions on the graph. */
4650 static struct rev_graph graph_stacks[4] = {
4651 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
4652 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
4653 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
4654 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
4658 graph_parent_is_merge(struct rev_graph *graph)
4660 return graph->parents->size > 1;
4664 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
4666 struct commit *commit = graph->commit;
4668 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
4669 commit->graph[commit->graph_size++] = symbol;
4673 done_rev_graph(struct rev_graph *graph)
4675 if (graph_parent_is_merge(graph) &&
4676 graph->pos < graph->size - 1 &&
4677 graph->next->size == graph->size + graph->parents->size - 1) {
4678 size_t i = graph->pos + graph->parents->size - 1;
4680 graph->commit->graph_size = i * 2;
4681 while (i < graph->next->size - 1) {
4682 append_to_rev_graph(graph, ' ');
4683 append_to_rev_graph(graph, '\\');
4688 graph->size = graph->pos = 0;
4689 graph->commit = NULL;
4690 memset(graph->parents, 0, sizeof(*graph->parents));
4694 push_rev_graph(struct rev_graph *graph, char *parent)
4698 /* "Collapse" duplicate parents lines.
4700 * FIXME: This needs to also update update the drawn graph but
4701 * for now it just serves as a method for pruning graph lines. */
4702 for (i = 0; i < graph->size; i++)
4703 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
4706 if (graph->size < SIZEOF_REVITEMS) {
4707 string_copy_rev(graph->rev[graph->size++], parent);
4712 get_rev_graph_symbol(struct rev_graph *graph)
4716 if (graph->boundary)
4717 symbol = REVGRAPH_BOUND;
4718 else if (graph->parents->size == 0)
4719 symbol = REVGRAPH_INIT;
4720 else if (graph_parent_is_merge(graph))
4721 symbol = REVGRAPH_MERGE;
4722 else if (graph->pos >= graph->size)
4723 symbol = REVGRAPH_BRANCH;
4725 symbol = REVGRAPH_COMMIT;
4731 draw_rev_graph(struct rev_graph *graph)
4734 chtype separator, line;
4736 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
4737 static struct rev_filler fillers[] = {
4743 chtype symbol = get_rev_graph_symbol(graph);
4744 struct rev_filler *filler;
4747 if (opt_line_graphics)
4748 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
4750 filler = &fillers[DEFAULT];
4752 for (i = 0; i < graph->pos; i++) {
4753 append_to_rev_graph(graph, filler->line);
4754 if (graph_parent_is_merge(graph->prev) &&
4755 graph->prev->pos == i)
4756 filler = &fillers[RSHARP];
4758 append_to_rev_graph(graph, filler->separator);
4761 /* Place the symbol for this revision. */
4762 append_to_rev_graph(graph, symbol);
4764 if (graph->prev->size > graph->size)
4765 filler = &fillers[RDIAG];
4767 filler = &fillers[DEFAULT];
4771 for (; i < graph->size; i++) {
4772 append_to_rev_graph(graph, filler->separator);
4773 append_to_rev_graph(graph, filler->line);
4774 if (graph_parent_is_merge(graph->prev) &&
4775 i < graph->prev->pos + graph->parents->size)
4776 filler = &fillers[RSHARP];
4777 if (graph->prev->size > graph->size)
4778 filler = &fillers[LDIAG];
4781 if (graph->prev->size > graph->size) {
4782 append_to_rev_graph(graph, filler->separator);
4783 if (filler->line != ' ')
4784 append_to_rev_graph(graph, filler->line);
4788 /* Prepare the next rev graph */
4790 prepare_rev_graph(struct rev_graph *graph)
4794 /* First, traverse all lines of revisions up to the active one. */
4795 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
4796 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
4799 push_rev_graph(graph->next, graph->rev[graph->pos]);
4802 /* Interleave the new revision parent(s). */
4803 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
4804 push_rev_graph(graph->next, graph->parents->rev[i]);
4806 /* Lastly, put any remaining revisions. */
4807 for (i = graph->pos + 1; i < graph->size; i++)
4808 push_rev_graph(graph->next, graph->rev[i]);
4812 update_rev_graph(struct rev_graph *graph)
4814 /* If this is the finalizing update ... */
4816 prepare_rev_graph(graph);
4818 /* Graph visualization needs a one rev look-ahead,
4819 * so the first update doesn't visualize anything. */
4820 if (!graph->prev->commit)
4823 draw_rev_graph(graph->prev);
4824 done_rev_graph(graph->prev->prev);
4833 main_draw(struct view *view, struct line *line, unsigned int lineno)
4835 struct commit *commit = line->data;
4838 if (!*commit->author)
4842 col += draw_date(view, &commit->time, view->width);
4843 if (col >= view->width)
4850 max_len = view->width - col;
4851 if (max_len > AUTHOR_COLS - 1)
4852 max_len = AUTHOR_COLS - 1;
4853 draw_text(view, LINE_MAIN_AUTHOR, commit->author, max_len, TRUE);
4855 if (col >= view->width)
4859 if (opt_rev_graph && commit->graph_size) {
4860 size_t graph_size = view->width - col;
4863 set_view_attr(view, LINE_MAIN_REVGRAPH);
4864 wmove(view->win, lineno, col);
4865 if (graph_size > commit->graph_size)
4866 graph_size = commit->graph_size;
4867 /* Using waddch() instead of waddnstr() ensures that
4868 * they'll be rendered correctly for the cursor line. */
4869 for (i = 0; i < graph_size; i++)
4870 waddch(view->win, commit->graph[i]);
4872 col += commit->graph_size + 1;
4873 if (col >= view->width)
4875 waddch(view->win, ' ');
4878 set_view_attr(view, LINE_DEFAULT);
4879 wmove(view->win, lineno, col);
4881 if (opt_show_refs && commit->refs) {
4885 enum line_type type;
4887 if (commit->refs[i]->head)
4888 type = LINE_MAIN_HEAD;
4889 else if (commit->refs[i]->ltag)
4890 type = LINE_MAIN_LOCAL_TAG;
4891 else if (commit->refs[i]->tag)
4892 type = LINE_MAIN_TAG;
4893 else if (commit->refs[i]->tracked)
4894 type = LINE_MAIN_TRACKED;
4895 else if (commit->refs[i]->remote)
4896 type = LINE_MAIN_REMOTE;
4898 type = LINE_MAIN_REF;
4900 col += draw_text(view, type, "[", view->width - col, TRUE);
4901 col += draw_text(view, type, commit->refs[i]->name, view->width - col, TRUE);
4902 col += draw_text(view, type, "]", view->width - col, TRUE);
4904 col += draw_text(view, LINE_DEFAULT, " ", view->width - col, TRUE);
4905 if (col >= view->width)
4907 } while (commit->refs[i++]->next);
4910 draw_text(view, LINE_DEFAULT, commit->title, view->width - col, TRUE);
4914 /* Reads git log --pretty=raw output and parses it into the commit struct. */
4916 main_read(struct view *view, char *line)
4918 static struct rev_graph *graph = graph_stacks;
4919 enum line_type type;
4920 struct commit *commit;
4923 if (!view->lines && !view->parent)
4924 die("No revisions match the given arguments.");
4925 update_rev_graph(graph);
4929 type = get_line_type(line);
4930 if (type == LINE_COMMIT) {
4931 commit = calloc(1, sizeof(struct commit));
4935 line += STRING_SIZE("commit ");
4937 graph->boundary = 1;
4941 string_copy_rev(commit->id, line);
4942 commit->refs = get_refs(commit->id);
4943 graph->commit = commit;
4944 add_line_data(view, commit, LINE_MAIN_COMMIT);
4946 while ((line = strchr(line, ' '))) {
4948 push_rev_graph(graph->parents, line);
4949 commit->has_parents = TRUE;
4956 commit = view->line[view->lines - 1].data;
4960 if (commit->has_parents)
4962 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
4967 /* Parse author lines where the name may be empty:
4968 * author <email@address.tld> 1138474660 +0100
4970 char *ident = line + STRING_SIZE("author ");
4971 char *nameend = strchr(ident, '<');
4972 char *emailend = strchr(ident, '>');
4974 if (!nameend || !emailend)
4977 update_rev_graph(graph);
4978 graph = graph->next;
4980 *nameend = *emailend = 0;
4981 ident = chomp_string(ident);
4983 ident = chomp_string(nameend + 1);
4988 string_ncopy(commit->author, ident, strlen(ident));
4990 /* Parse epoch and timezone */
4991 if (emailend[1] == ' ') {
4992 char *secs = emailend + 2;
4993 char *zone = strchr(secs, ' ');
4994 time_t time = (time_t) atol(secs);
4996 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5000 tz = ('0' - zone[1]) * 60 * 60 * 10;
5001 tz += ('0' - zone[2]) * 60 * 60;
5002 tz += ('0' - zone[3]) * 60;
5003 tz += ('0' - zone[4]) * 60;
5011 gmtime_r(&time, &commit->time);
5016 /* Fill in the commit title if it has not already been set. */
5017 if (commit->title[0])
5020 /* Require titles to start with a non-space character at the
5021 * offset used by git log. */
5022 if (strncmp(line, " ", 4))
5025 /* Well, if the title starts with a whitespace character,
5026 * try to be forgiving. Otherwise we end up with no title. */
5027 while (isspace(*line))
5031 /* FIXME: More graceful handling of titles; append "..." to
5032 * shortened titles, etc. */
5034 string_ncopy(commit->title, line, strlen(line));
5041 main_request(struct view *view, enum request request, struct line *line)
5043 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5045 if (request == REQ_ENTER)
5046 open_view(view, REQ_VIEW_DIFF, flags);
5054 grep_refs(struct ref **refs, regex_t *regex)
5062 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5064 } while (refs[i++]->next);
5070 main_grep(struct view *view, struct line *line)
5072 struct commit *commit = line->data;
5073 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5074 char buf[DATE_COLS + 1];
5077 for (state = S_TITLE; state < S_END; state++) {
5081 case S_TITLE: text = commit->title; break;
5085 text = commit->author;
5090 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5097 if (grep_refs(commit->refs, view->regex) == TRUE)
5104 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5112 main_select(struct view *view, struct line *line)
5114 struct commit *commit = line->data;
5116 string_copy_rev(view->ref, commit->id);
5117 string_copy_rev(ref_commit, view->ref);
5120 static struct view_ops main_ops = {
5132 * Unicode / UTF-8 handling
5134 * NOTE: Much of the following code for dealing with unicode is derived from
5135 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5136 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5139 /* I've (over)annotated a lot of code snippets because I am not entirely
5140 * confident that the approach taken by this small UTF-8 interface is correct.
5144 unicode_width(unsigned long c)
5147 (c <= 0x115f /* Hangul Jamo */
5150 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5152 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5153 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5154 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5155 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5156 || (c >= 0xffe0 && c <= 0xffe6)
5157 || (c >= 0x20000 && c <= 0x2fffd)
5158 || (c >= 0x30000 && c <= 0x3fffd)))
5162 return opt_tab_size;
5167 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5168 * Illegal bytes are set one. */
5169 static const unsigned char utf8_bytes[256] = {
5170 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,
5171 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,
5172 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,
5173 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,
5174 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,
5175 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,
5176 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,
5177 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,
5180 /* Decode UTF-8 multi-byte representation into a unicode character. */
5181 static inline unsigned long
5182 utf8_to_unicode(const char *string, size_t length)
5184 unsigned long unicode;
5188 unicode = string[0];
5191 unicode = (string[0] & 0x1f) << 6;
5192 unicode += (string[1] & 0x3f);
5195 unicode = (string[0] & 0x0f) << 12;
5196 unicode += ((string[1] & 0x3f) << 6);
5197 unicode += (string[2] & 0x3f);
5200 unicode = (string[0] & 0x0f) << 18;
5201 unicode += ((string[1] & 0x3f) << 12);
5202 unicode += ((string[2] & 0x3f) << 6);
5203 unicode += (string[3] & 0x3f);
5206 unicode = (string[0] & 0x0f) << 24;
5207 unicode += ((string[1] & 0x3f) << 18);
5208 unicode += ((string[2] & 0x3f) << 12);
5209 unicode += ((string[3] & 0x3f) << 6);
5210 unicode += (string[4] & 0x3f);
5213 unicode = (string[0] & 0x01) << 30;
5214 unicode += ((string[1] & 0x3f) << 24);
5215 unicode += ((string[2] & 0x3f) << 18);
5216 unicode += ((string[3] & 0x3f) << 12);
5217 unicode += ((string[4] & 0x3f) << 6);
5218 unicode += (string[5] & 0x3f);
5221 die("Invalid unicode length");
5224 /* Invalid characters could return the special 0xfffd value but NUL
5225 * should be just as good. */
5226 return unicode > 0xffff ? 0 : unicode;
5229 /* Calculates how much of string can be shown within the given maximum width
5230 * and sets trimmed parameter to non-zero value if all of string could not be
5231 * shown. If the reserve flag is TRUE, it will reserve at least one
5232 * trailing character, which can be useful when drawing a delimiter.
5234 * Returns the number of bytes to output from string to satisfy max_width. */
5236 utf8_length(const char *string, size_t max_width, int *trimmed, bool reserve)
5238 const char *start = string;
5239 const char *end = strchr(string, '\0');
5240 unsigned char last_bytes = 0;
5245 while (string < end) {
5246 int c = *(unsigned char *) string;
5247 unsigned char bytes = utf8_bytes[c];
5249 unsigned long unicode;
5251 if (string + bytes > end)
5254 /* Change representation to figure out whether
5255 * it is a single- or double-width character. */
5257 unicode = utf8_to_unicode(string, bytes);
5258 /* FIXME: Graceful handling of invalid unicode character. */
5262 ucwidth = unicode_width(unicode);
5264 if (width > max_width) {
5266 if (reserve && width - ucwidth == max_width) {
5267 string -= last_bytes;
5276 return string - start;
5284 /* Whether or not the curses interface has been initialized. */
5285 static bool cursed = FALSE;
5287 /* The status window is used for polling keystrokes. */
5288 static WINDOW *status_win;
5290 static bool status_empty = TRUE;
5292 /* Update status and title window. */
5294 report(const char *msg, ...)
5296 struct view *view = display[current_view];
5302 char buf[SIZEOF_STR];
5305 va_start(args, msg);
5306 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5307 buf[sizeof(buf) - 1] = 0;
5308 buf[sizeof(buf) - 2] = '.';
5309 buf[sizeof(buf) - 3] = '.';
5310 buf[sizeof(buf) - 4] = '.';
5316 if (!status_empty || *msg) {
5319 va_start(args, msg);
5321 wmove(status_win, 0, 0);
5323 vwprintw(status_win, msg, args);
5324 status_empty = FALSE;
5326 status_empty = TRUE;
5328 wclrtoeol(status_win);
5329 wrefresh(status_win);
5334 update_view_title(view);
5335 update_display_cursor(view);
5338 /* Controls when nodelay should be in effect when polling user input. */
5340 set_nonblocking_input(bool loading)
5342 static unsigned int loading_views;
5344 if ((loading == FALSE && loading_views-- == 1) ||
5345 (loading == TRUE && loading_views++ == 0))
5346 nodelay(status_win, loading);
5354 /* Initialize the curses library */
5355 if (isatty(STDIN_FILENO)) {
5356 cursed = !!initscr();
5358 /* Leave stdin and stdout alone when acting as a pager. */
5359 FILE *io = fopen("/dev/tty", "r+");
5362 die("Failed to open /dev/tty");
5363 cursed = !!newterm(NULL, io, io);
5367 die("Failed to initialize curses");
5369 nonl(); /* Tell curses not to do NL->CR/NL on output */
5370 cbreak(); /* Take input chars one at a time, no wait for \n */
5371 noecho(); /* Don't echo input */
5372 leaveok(stdscr, TRUE);
5377 getmaxyx(stdscr, y, x);
5378 status_win = newwin(1, 0, y - 1, 0);
5380 die("Failed to create status window");
5382 /* Enable keyboard mapping */
5383 keypad(status_win, TRUE);
5384 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5386 TABSIZE = opt_tab_size;
5387 if (opt_line_graphics) {
5388 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5393 read_prompt(const char *prompt)
5395 enum { READING, STOP, CANCEL } status = READING;
5396 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
5399 while (status == READING) {
5405 foreach_view (view, i)
5410 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5411 wclrtoeol(status_win);
5413 /* Refresh, accept single keystroke of input */
5414 key = wgetch(status_win);
5419 status = pos ? STOP : CANCEL;
5437 if (pos >= sizeof(buf)) {
5438 report("Input string too long");
5443 buf[pos++] = (char) key;
5447 /* Clear the status window */
5448 status_empty = FALSE;
5451 if (status == CANCEL)
5460 * Repository references
5463 static struct ref *refs = NULL;
5464 static size_t refs_alloc = 0;
5465 static size_t refs_size = 0;
5467 /* Id <-> ref store */
5468 static struct ref ***id_refs = NULL;
5469 static size_t id_refs_alloc = 0;
5470 static size_t id_refs_size = 0;
5472 static struct ref **
5475 struct ref ***tmp_id_refs;
5476 struct ref **ref_list = NULL;
5477 size_t ref_list_alloc = 0;
5478 size_t ref_list_size = 0;
5481 for (i = 0; i < id_refs_size; i++)
5482 if (!strcmp(id, id_refs[i][0]->id))
5485 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
5490 id_refs = tmp_id_refs;
5492 for (i = 0; i < refs_size; i++) {
5495 if (strcmp(id, refs[i].id))
5498 tmp = realloc_items(ref_list, &ref_list_alloc,
5499 ref_list_size + 1, sizeof(*ref_list));
5507 if (ref_list_size > 0)
5508 ref_list[ref_list_size - 1]->next = 1;
5509 ref_list[ref_list_size] = &refs[i];
5511 /* XXX: The properties of the commit chains ensures that we can
5512 * safely modify the shared ref. The repo references will
5513 * always be similar for the same id. */
5514 ref_list[ref_list_size]->next = 0;
5519 id_refs[id_refs_size++] = ref_list;
5525 read_ref(char *id, size_t idlen, char *name, size_t namelen)
5530 bool remote = FALSE;
5531 bool tracked = FALSE;
5532 bool check_replace = FALSE;
5535 if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) {
5536 if (!strcmp(name + namelen - 3, "^{}")) {
5539 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
5540 check_replace = TRUE;
5546 namelen -= STRING_SIZE("refs/tags/");
5547 name += STRING_SIZE("refs/tags/");
5549 } else if (!strncmp(name, "refs/remotes/", STRING_SIZE("refs/remotes/"))) {
5551 namelen -= STRING_SIZE("refs/remotes/");
5552 name += STRING_SIZE("refs/remotes/");
5553 tracked = !strcmp(opt_remote, name);
5555 } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5556 namelen -= STRING_SIZE("refs/heads/");
5557 name += STRING_SIZE("refs/heads/");
5558 head = !strncmp(opt_head, name, namelen);
5560 } else if (!strcmp(name, "HEAD")) {
5561 opt_no_head = FALSE;
5565 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
5566 /* it's an annotated tag, replace the previous sha1 with the
5567 * resolved commit id; relies on the fact git-ls-remote lists
5568 * the commit id of an annotated tag right beofre the commit id
5570 refs[refs_size - 1].ltag = ltag;
5571 string_copy_rev(refs[refs_size - 1].id, id);
5575 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
5579 ref = &refs[refs_size++];
5580 ref->name = malloc(namelen + 1);
5584 strncpy(ref->name, name, namelen);
5585 ref->name[namelen] = 0;
5589 ref->remote = remote;
5590 ref->tracked = tracked;
5591 string_copy_rev(ref->id, id);
5599 const char *cmd_env = getenv("TIG_LS_REMOTE");
5600 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
5602 return read_properties(popen(cmd, "r"), "\t", read_ref);
5606 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
5608 if (!strcmp(name, "i18n.commitencoding"))
5609 string_ncopy(opt_encoding, value, valuelen);
5611 if (!strcmp(name, "core.editor"))
5612 string_ncopy(opt_editor, value, valuelen);
5614 /* branch.<head>.remote */
5616 !strncmp(name, "branch.", 7) &&
5617 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5618 !strcmp(name + 7 + strlen(opt_head), ".remote"))
5619 string_ncopy(opt_remote, value, valuelen);
5621 if (*opt_head && *opt_remote &&
5622 !strncmp(name, "branch.", 7) &&
5623 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5624 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
5625 size_t from = strlen(opt_remote);
5627 if (!strncmp(value, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5628 value += STRING_SIZE("refs/heads/");
5629 valuelen -= STRING_SIZE("refs/heads/");
5632 if (!string_format_from(opt_remote, &from, "/%s", value))
5640 load_git_config(void)
5642 return read_properties(popen(GIT_CONFIG " --list", "r"),
5643 "=", read_repo_config_option);
5647 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
5649 if (!opt_git_dir[0]) {
5650 string_ncopy(opt_git_dir, name, namelen);
5652 } else if (opt_is_inside_work_tree == -1) {
5653 /* This can be 3 different values depending on the
5654 * version of git being used. If git-rev-parse does not
5655 * understand --is-inside-work-tree it will simply echo
5656 * the option else either "true" or "false" is printed.
5657 * Default to true for the unknown case. */
5658 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
5660 } else if (opt_cdup[0] == ' ') {
5661 string_ncopy(opt_cdup, name, namelen);
5663 if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5664 namelen -= STRING_SIZE("refs/heads/");
5665 name += STRING_SIZE("refs/heads/");
5666 string_ncopy(opt_head, name, namelen);
5674 load_repo_info(void)
5677 FILE *pipe = popen("(git rev-parse --git-dir --is-inside-work-tree "
5678 " --show-cdup; git symbolic-ref HEAD) 2>/dev/null", "r");
5680 /* XXX: The line outputted by "--show-cdup" can be empty so
5681 * initialize it to something invalid to make it possible to
5682 * detect whether it has been set or not. */
5685 result = read_properties(pipe, "=", read_repo_info);
5686 if (opt_cdup[0] == ' ')
5693 read_properties(FILE *pipe, const char *separators,
5694 int (*read_property)(char *, size_t, char *, size_t))
5696 char buffer[BUFSIZ];
5703 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
5708 name = chomp_string(name);
5709 namelen = strcspn(name, separators);
5711 if (name[namelen]) {
5713 value = chomp_string(name + namelen + 1);
5714 valuelen = strlen(value);
5721 state = read_property(name, namelen, value, valuelen);
5724 if (state != ERR && ferror(pipe))
5737 static void __NORETURN
5740 /* XXX: Restore tty modes and let the OS cleanup the rest! */
5746 static void __NORETURN
5747 die(const char *err, ...)
5753 va_start(args, err);
5754 fputs("tig: ", stderr);
5755 vfprintf(stderr, err, args);
5756 fputs("\n", stderr);
5763 warn(const char *msg, ...)
5767 va_start(args, msg);
5768 fputs("tig warning: ", stderr);
5769 vfprintf(stderr, msg, args);
5770 fputs("\n", stderr);
5775 main(int argc, char *argv[])
5778 enum request request;
5781 signal(SIGINT, quit);
5783 if (setlocale(LC_ALL, "")) {
5784 char *codeset = nl_langinfo(CODESET);
5786 string_ncopy(opt_codeset, codeset, strlen(codeset));
5789 if (load_repo_info() == ERR)
5790 die("Failed to load repo info.");
5792 if (load_options() == ERR)
5793 die("Failed to load user config.");
5795 if (load_git_config() == ERR)
5796 die("Failed to load repo config.");
5798 if (!parse_options(argc, argv))
5801 /* Require a git repository unless when running in pager mode. */
5802 if (!opt_git_dir[0] && opt_request != REQ_VIEW_PAGER)
5803 die("Not a git repository");
5805 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
5808 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
5809 opt_iconv = iconv_open(opt_codeset, opt_encoding);
5810 if (opt_iconv == ICONV_NONE)
5811 die("Failed to initialize character set conversion");
5814 if (*opt_git_dir && load_refs() == ERR)
5815 die("Failed to load refs.");
5817 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
5818 view->cmd_env = getenv(view->cmd_env);
5820 request = opt_request;
5824 while (view_driver(display[current_view], request)) {
5828 foreach_view (view, i)
5831 /* Refresh, accept single keystroke of input */
5832 key = wgetch(status_win);
5834 /* wgetch() with nodelay() enabled returns ERR when there's no
5841 request = get_keybinding(display[current_view]->keymap, key);
5843 /* Some low-level request handling. This keeps access to
5844 * status_win restricted. */
5848 char *cmd = read_prompt(":");
5850 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
5851 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
5852 opt_request = REQ_VIEW_DIFF;
5854 opt_request = REQ_VIEW_PAGER;
5863 case REQ_SEARCH_BACK:
5865 const char *prompt = request == REQ_SEARCH
5867 char *search = read_prompt(prompt);
5870 string_ncopy(opt_search, search, strlen(search));
5875 case REQ_SCREEN_RESIZE:
5879 getmaxyx(stdscr, height, width);
5881 /* Resize the status view and let the view driver take
5882 * care of resizing the displayed views. */
5883 wresize(status_win, 1, width);
5884 mvwin(status_win, height - 1, 0);
5885 wrefresh(status_win);