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_space(struct view *view, enum line_type type, int max, int spaces)
1521 static char space[] = " ";
1524 spaces = MIN(max, spaces);
1526 while (spaces > 0) {
1527 int len = MIN(spaces, sizeof(space) - 1);
1529 col += draw_text(view, type, space, spaces, FALSE);
1537 draw_lineno(struct view *view, unsigned int lineno, int max)
1539 static char fmt[] = "%1ld";
1540 char number[10] = " ";
1541 int digits3 = view->digits < 3 ? 3 : view->digits;
1542 int max_number = MIN(digits3, STRING_SIZE(number));
1543 bool showtrimmed = FALSE;
1546 lineno += view->offset + 1;
1547 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1548 if (view->digits <= 9)
1549 fmt[1] = '0' + digits3;
1551 if (!string_format(number, fmt, lineno))
1556 if (max < max_number)
1559 col = draw_text(view, LINE_LINE_NUMBER, number, max_number, showtrimmed);
1561 set_view_attr(view, LINE_DEFAULT);
1562 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1566 waddch(view->win, ' ');
1574 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size, size_t max)
1582 set_view_attr(view, type);
1583 /* Using waddch() instead of waddnstr() ensures that
1584 * they'll be rendered correctly for the cursor line. */
1585 for (i = 0; i < size; i++)
1586 waddch(view->win, graphic[i]);
1590 waddch(view->win, ' ');
1598 draw_field(struct view *view, enum line_type type, char *text, int len, int max_len, bool trim)
1600 int max = MIN(max_len, len);
1604 col = draw_text(view, type, text, max - 1, trim);
1606 col = draw_space(view, type, max - 1, max - 1);
1608 col += draw_space(view, LINE_DEFAULT, max - col, max - col);
1613 draw_date(struct view *view, struct tm *time, int max)
1615 char buf[DATE_COLS];
1620 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1621 date = timelen ? buf : NULL;
1623 return draw_field(view, LINE_DATE, date, DATE_COLS, max, FALSE);
1627 draw_view_line(struct view *view, unsigned int lineno)
1630 bool selected = (view->offset + lineno == view->lineno);
1633 assert(view_is_displayed(view));
1635 if (view->offset + lineno >= view->lines)
1638 line = &view->line[view->offset + lineno];
1640 wmove(view->win, lineno, 0);
1641 view->curline = line;
1642 view->curtype = LINE_NONE;
1643 line->selected = FALSE;
1646 set_view_attr(view, LINE_CURSOR);
1647 line->selected = TRUE;
1648 view->ops->select(view, line);
1649 } else if (line->selected) {
1650 wclrtoeol(view->win);
1653 scrollok(view->win, FALSE);
1654 draw_ok = view->ops->draw(view, line, lineno);
1655 scrollok(view->win, TRUE);
1661 redraw_view_dirty(struct view *view)
1666 for (lineno = 0; lineno < view->height; lineno++) {
1667 struct line *line = &view->line[view->offset + lineno];
1673 if (!draw_view_line(view, lineno))
1679 redrawwin(view->win);
1681 wnoutrefresh(view->win);
1683 wrefresh(view->win);
1687 redraw_view_from(struct view *view, int lineno)
1689 assert(0 <= lineno && lineno < view->height);
1691 for (; lineno < view->height; lineno++) {
1692 if (!draw_view_line(view, lineno))
1696 redrawwin(view->win);
1698 wnoutrefresh(view->win);
1700 wrefresh(view->win);
1704 redraw_view(struct view *view)
1707 redraw_view_from(view, 0);
1712 update_view_title(struct view *view)
1714 char buf[SIZEOF_STR];
1715 char state[SIZEOF_STR];
1716 size_t bufpos = 0, statelen = 0;
1718 assert(view_is_displayed(view));
1720 if (view != VIEW(REQ_VIEW_STATUS) && (view->lines || view->pipe)) {
1721 unsigned int view_lines = view->offset + view->height;
1722 unsigned int lines = view->lines
1723 ? MIN(view_lines, view->lines) * 100 / view->lines
1726 string_format_from(state, &statelen, "- %s %d of %d (%d%%)",
1733 time_t secs = time(NULL) - view->start_time;
1735 /* Three git seconds are a long time ... */
1737 string_format_from(state, &statelen, " %lds", secs);
1741 string_format_from(buf, &bufpos, "[%s]", view->name);
1742 if (*view->ref && bufpos < view->width) {
1743 size_t refsize = strlen(view->ref);
1744 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
1746 if (minsize < view->width)
1747 refsize = view->width - minsize + 7;
1748 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
1751 if (statelen && bufpos < view->width) {
1752 string_format_from(buf, &bufpos, " %s", state);
1755 if (view == display[current_view])
1756 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
1758 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
1760 mvwaddnstr(view->title, 0, 0, buf, bufpos);
1761 wclrtoeol(view->title);
1762 wmove(view->title, 0, view->width - 1);
1765 wnoutrefresh(view->title);
1767 wrefresh(view->title);
1771 resize_display(void)
1774 struct view *base = display[0];
1775 struct view *view = display[1] ? display[1] : display[0];
1777 /* Setup window dimensions */
1779 getmaxyx(stdscr, base->height, base->width);
1781 /* Make room for the status window. */
1785 /* Horizontal split. */
1786 view->width = base->width;
1787 view->height = SCALE_SPLIT_VIEW(base->height);
1788 base->height -= view->height;
1790 /* Make room for the title bar. */
1794 /* Make room for the title bar. */
1799 foreach_displayed_view (view, i) {
1801 view->win = newwin(view->height, 0, offset, 0);
1803 die("Failed to create %s view", view->name);
1805 scrollok(view->win, TRUE);
1807 view->title = newwin(1, 0, offset + view->height, 0);
1809 die("Failed to create title window");
1812 wresize(view->win, view->height, view->width);
1813 mvwin(view->win, offset, 0);
1814 mvwin(view->title, offset + view->height, 0);
1817 offset += view->height + 1;
1822 redraw_display(void)
1827 foreach_displayed_view (view, i) {
1829 update_view_title(view);
1834 update_display_cursor(struct view *view)
1836 /* Move the cursor to the right-most column of the cursor line.
1838 * XXX: This could turn out to be a bit expensive, but it ensures that
1839 * the cursor does not jump around. */
1841 wmove(view->win, view->lineno - view->offset, view->width - 1);
1842 wrefresh(view->win);
1850 /* Scrolling backend */
1852 do_scroll_view(struct view *view, int lines)
1854 bool redraw_current_line = FALSE;
1856 /* The rendering expects the new offset. */
1857 view->offset += lines;
1859 assert(0 <= view->offset && view->offset < view->lines);
1862 /* Move current line into the view. */
1863 if (view->lineno < view->offset) {
1864 view->lineno = view->offset;
1865 redraw_current_line = TRUE;
1866 } else if (view->lineno >= view->offset + view->height) {
1867 view->lineno = view->offset + view->height - 1;
1868 redraw_current_line = TRUE;
1871 assert(view->offset <= view->lineno && view->lineno < view->lines);
1873 /* Redraw the whole screen if scrolling is pointless. */
1874 if (view->height < ABS(lines)) {
1878 int line = lines > 0 ? view->height - lines : 0;
1879 int end = line + ABS(lines);
1881 wscrl(view->win, lines);
1883 for (; line < end; line++) {
1884 if (!draw_view_line(view, line))
1888 if (redraw_current_line)
1889 draw_view_line(view, view->lineno - view->offset);
1892 redrawwin(view->win);
1893 wrefresh(view->win);
1897 /* Scroll frontend */
1899 scroll_view(struct view *view, enum request request)
1903 assert(view_is_displayed(view));
1906 case REQ_SCROLL_PAGE_DOWN:
1907 lines = view->height;
1908 case REQ_SCROLL_LINE_DOWN:
1909 if (view->offset + lines > view->lines)
1910 lines = view->lines - view->offset;
1912 if (lines == 0 || view->offset + view->height >= view->lines) {
1913 report("Cannot scroll beyond the last line");
1918 case REQ_SCROLL_PAGE_UP:
1919 lines = view->height;
1920 case REQ_SCROLL_LINE_UP:
1921 if (lines > view->offset)
1922 lines = view->offset;
1925 report("Cannot scroll beyond the first line");
1933 die("request %d not handled in switch", request);
1936 do_scroll_view(view, lines);
1941 move_view(struct view *view, enum request request)
1943 int scroll_steps = 0;
1947 case REQ_MOVE_FIRST_LINE:
1948 steps = -view->lineno;
1951 case REQ_MOVE_LAST_LINE:
1952 steps = view->lines - view->lineno - 1;
1955 case REQ_MOVE_PAGE_UP:
1956 steps = view->height > view->lineno
1957 ? -view->lineno : -view->height;
1960 case REQ_MOVE_PAGE_DOWN:
1961 steps = view->lineno + view->height >= view->lines
1962 ? view->lines - view->lineno - 1 : view->height;
1974 die("request %d not handled in switch", request);
1977 if (steps <= 0 && view->lineno == 0) {
1978 report("Cannot move beyond the first line");
1981 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
1982 report("Cannot move beyond the last line");
1986 /* Move the current line */
1987 view->lineno += steps;
1988 assert(0 <= view->lineno && view->lineno < view->lines);
1990 /* Check whether the view needs to be scrolled */
1991 if (view->lineno < view->offset ||
1992 view->lineno >= view->offset + view->height) {
1993 scroll_steps = steps;
1994 if (steps < 0 && -steps > view->offset) {
1995 scroll_steps = -view->offset;
1997 } else if (steps > 0) {
1998 if (view->lineno == view->lines - 1 &&
1999 view->lines > view->height) {
2000 scroll_steps = view->lines - view->offset - 1;
2001 if (scroll_steps >= view->height)
2002 scroll_steps -= view->height - 1;
2007 if (!view_is_displayed(view)) {
2008 view->offset += scroll_steps;
2009 assert(0 <= view->offset && view->offset < view->lines);
2010 view->ops->select(view, &view->line[view->lineno]);
2014 /* Repaint the old "current" line if we be scrolling */
2015 if (ABS(steps) < view->height)
2016 draw_view_line(view, view->lineno - steps - view->offset);
2019 do_scroll_view(view, scroll_steps);
2023 /* Draw the current line */
2024 draw_view_line(view, view->lineno - view->offset);
2026 redrawwin(view->win);
2027 wrefresh(view->win);
2036 static void search_view(struct view *view, enum request request);
2039 find_next_line(struct view *view, unsigned long lineno, struct line *line)
2041 assert(view_is_displayed(view));
2043 if (!view->ops->grep(view, line))
2046 if (lineno - view->offset >= view->height) {
2047 view->offset = lineno;
2048 view->lineno = lineno;
2052 unsigned long old_lineno = view->lineno - view->offset;
2054 view->lineno = lineno;
2055 draw_view_line(view, old_lineno);
2057 draw_view_line(view, view->lineno - view->offset);
2058 redrawwin(view->win);
2059 wrefresh(view->win);
2062 report("Line %ld matches '%s'", lineno + 1, view->grep);
2067 find_next(struct view *view, enum request request)
2069 unsigned long lineno = view->lineno;
2074 report("No previous search");
2076 search_view(view, request);
2086 case REQ_SEARCH_BACK:
2095 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2096 lineno += direction;
2098 /* Note, lineno is unsigned long so will wrap around in which case it
2099 * will become bigger than view->lines. */
2100 for (; lineno < view->lines; lineno += direction) {
2101 struct line *line = &view->line[lineno];
2103 if (find_next_line(view, lineno, line))
2107 report("No match found for '%s'", view->grep);
2111 search_view(struct view *view, enum request request)
2116 regfree(view->regex);
2119 view->regex = calloc(1, sizeof(*view->regex));
2124 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2125 if (regex_err != 0) {
2126 char buf[SIZEOF_STR] = "unknown error";
2128 regerror(regex_err, view->regex, buf, sizeof(buf));
2129 report("Search failed: %s", buf);
2133 string_copy(view->grep, opt_search);
2135 find_next(view, request);
2139 * Incremental updating
2143 end_update(struct view *view)
2147 set_nonblocking_input(FALSE);
2148 if (view->pipe == stdin)
2156 begin_update(struct view *view)
2162 string_copy(view->cmd, opt_cmd);
2164 /* When running random commands, initially show the
2165 * command in the title. However, it maybe later be
2166 * overwritten if a commit line is selected. */
2167 if (view == VIEW(REQ_VIEW_PAGER))
2168 string_copy(view->ref, view->cmd);
2172 } else if (view == VIEW(REQ_VIEW_TREE)) {
2173 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2174 char path[SIZEOF_STR];
2176 if (strcmp(view->vid, view->id))
2177 opt_path[0] = path[0] = 0;
2178 else if (sq_quote(path, 0, opt_path) >= sizeof(path))
2181 if (!string_format(view->cmd, format, view->id, path))
2185 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2186 const char *id = view->id;
2188 if (!string_format(view->cmd, format, id, id, id, id, id))
2191 /* Put the current ref_* value to the view title ref
2192 * member. This is needed by the blob view. Most other
2193 * views sets it automatically after loading because the
2194 * first line is a commit line. */
2195 string_copy_rev(view->ref, view->id);
2198 /* Special case for the pager view. */
2200 view->pipe = opt_pipe;
2203 view->pipe = popen(view->cmd, "r");
2209 set_nonblocking_input(TRUE);
2214 string_copy_rev(view->vid, view->id);
2219 for (i = 0; i < view->lines; i++)
2220 if (view->line[i].data)
2221 free(view->line[i].data);
2227 view->start_time = time(NULL);
2232 #define ITEM_CHUNK_SIZE 256
2234 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2236 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2237 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2239 if (mem == NULL || num_chunks != num_chunks_new) {
2240 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2241 mem = realloc(mem, *size * item_size);
2247 static struct line *
2248 realloc_lines(struct view *view, size_t line_size)
2250 size_t alloc = view->line_alloc;
2251 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2252 sizeof(*view->line));
2258 view->line_alloc = alloc;
2259 view->line_size = line_size;
2264 update_view(struct view *view)
2266 char in_buffer[BUFSIZ];
2267 char out_buffer[BUFSIZ * 2];
2269 /* The number of lines to read. If too low it will cause too much
2270 * redrawing (and possible flickering), if too high responsiveness
2272 unsigned long lines = view->height;
2273 int redraw_from = -1;
2278 /* Only redraw if lines are visible. */
2279 if (view->offset + view->height >= view->lines)
2280 redraw_from = view->lines - view->offset;
2282 /* FIXME: This is probably not perfect for backgrounded views. */
2283 if (!realloc_lines(view, view->lines + lines))
2286 while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) {
2287 size_t linelen = strlen(line);
2290 line[linelen - 1] = 0;
2292 if (opt_iconv != ICONV_NONE) {
2293 ICONV_CONST char *inbuf = line;
2294 size_t inlen = linelen;
2296 char *outbuf = out_buffer;
2297 size_t outlen = sizeof(out_buffer);
2301 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2302 if (ret != (size_t) -1) {
2304 linelen = strlen(out_buffer);
2308 if (!view->ops->read(view, line))
2318 lines = view->lines;
2319 for (digits = 0; lines; digits++)
2322 /* Keep the displayed view in sync with line number scaling. */
2323 if (digits != view->digits) {
2324 view->digits = digits;
2329 if (!view_is_displayed(view))
2332 if (view == VIEW(REQ_VIEW_TREE)) {
2333 /* Clear the view and redraw everything since the tree sorting
2334 * might have rearranged things. */
2337 } else if (redraw_from >= 0) {
2338 /* If this is an incremental update, redraw the previous line
2339 * since for commits some members could have changed when
2340 * loading the main view. */
2341 if (redraw_from > 0)
2344 /* Since revision graph visualization requires knowledge
2345 * about the parent commit, it causes a further one-off
2346 * needed to be redrawn for incremental updates. */
2347 if (redraw_from > 0 && opt_rev_graph)
2350 /* Incrementally draw avoids flickering. */
2351 redraw_view_from(view, redraw_from);
2354 if (view == VIEW(REQ_VIEW_BLAME))
2355 redraw_view_dirty(view);
2357 /* Update the title _after_ the redraw so that if the redraw picks up a
2358 * commit reference in view->ref it'll be available here. */
2359 update_view_title(view);
2362 if (ferror(view->pipe)) {
2363 report("Failed to read: %s", strerror(errno));
2366 } else if (feof(view->pipe)) {
2374 report("Allocation failure");
2377 if (view->ops->read(view, NULL))
2382 static struct line *
2383 add_line_data(struct view *view, void *data, enum line_type type)
2385 struct line *line = &view->line[view->lines++];
2387 memset(line, 0, sizeof(*line));
2394 static struct line *
2395 add_line_text(struct view *view, char *data, enum line_type type)
2398 data = strdup(data);
2400 return data ? add_line_data(view, data, type) : NULL;
2409 OPEN_DEFAULT = 0, /* Use default view switching. */
2410 OPEN_SPLIT = 1, /* Split current view. */
2411 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2412 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2413 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2417 open_view(struct view *prev, enum request request, enum open_flags flags)
2419 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2420 bool split = !!(flags & OPEN_SPLIT);
2421 bool reload = !!(flags & OPEN_RELOAD);
2422 bool nomaximize = !!(flags & OPEN_NOMAXIMIZE);
2423 struct view *view = VIEW(request);
2424 int nviews = displayed_views();
2425 struct view *base_view = display[0];
2427 if (view == prev && nviews == 1 && !reload) {
2428 report("Already in %s view", view->name);
2432 if (view->git_dir && !opt_git_dir[0]) {
2433 report("The %s view is disabled in pager view", view->name);
2441 } else if (!nomaximize) {
2442 /* Maximize the current view. */
2443 memset(display, 0, sizeof(display));
2445 display[current_view] = view;
2448 /* Resize the view when switching between split- and full-screen,
2449 * or when switching between two different full-screen views. */
2450 if (nviews != displayed_views() ||
2451 (nviews == 1 && base_view != display[0]))
2454 if (view->ops->open) {
2455 if (!view->ops->open(view)) {
2456 report("Failed to load %s view", view->name);
2460 } else if ((reload || strcmp(view->vid, view->id)) &&
2461 !begin_update(view)) {
2462 report("Failed to load %s view", view->name);
2466 if (split && prev->lineno - prev->offset >= prev->height) {
2467 /* Take the title line into account. */
2468 int lines = prev->lineno - prev->offset - prev->height + 1;
2470 /* Scroll the view that was split if the current line is
2471 * outside the new limited view. */
2472 do_scroll_view(prev, lines);
2475 if (prev && view != prev) {
2476 if (split && !backgrounded) {
2477 /* "Blur" the previous view. */
2478 update_view_title(prev);
2481 view->parent = prev;
2484 if (view->pipe && view->lines == 0) {
2485 /* Clear the old view and let the incremental updating refill
2494 /* If the view is backgrounded the above calls to report()
2495 * won't redraw the view title. */
2497 update_view_title(view);
2501 open_external_viewer(const char *cmd)
2503 def_prog_mode(); /* save current tty modes */
2504 endwin(); /* restore original tty modes */
2506 fprintf(stderr, "Press Enter to continue");
2513 open_mergetool(const char *file)
2515 char cmd[SIZEOF_STR];
2516 char file_sq[SIZEOF_STR];
2518 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2519 string_format(cmd, "git mergetool %s", file_sq)) {
2520 open_external_viewer(cmd);
2525 open_editor(bool from_root, const char *file)
2527 char cmd[SIZEOF_STR];
2528 char file_sq[SIZEOF_STR];
2530 char *prefix = from_root ? opt_cdup : "";
2532 editor = getenv("GIT_EDITOR");
2533 if (!editor && *opt_editor)
2534 editor = opt_editor;
2536 editor = getenv("VISUAL");
2538 editor = getenv("EDITOR");
2542 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2543 string_format(cmd, "%s %s%s", editor, prefix, file_sq)) {
2544 open_external_viewer(cmd);
2549 open_run_request(enum request request)
2551 struct run_request *req = get_run_request(request);
2552 char buf[SIZEOF_STR * 2];
2557 report("Unknown run request");
2565 char *next = strstr(cmd, "%(");
2566 int len = next - cmd;
2573 } else if (!strncmp(next, "%(head)", 7)) {
2576 } else if (!strncmp(next, "%(commit)", 9)) {
2579 } else if (!strncmp(next, "%(blob)", 7)) {
2583 report("Unknown replacement in run request: `%s`", req->cmd);
2587 if (!string_format_from(buf, &bufpos, "%.*s%s", len, cmd, value))
2591 next = strchr(next, ')') + 1;
2595 open_external_viewer(buf);
2599 * User request switch noodle
2603 view_driver(struct view *view, enum request request)
2607 if (request == REQ_NONE) {
2612 if (request > REQ_NONE) {
2613 open_run_request(request);
2614 /* FIXME: When all views can refresh always do this. */
2615 if (view == VIEW(REQ_VIEW_STATUS) ||
2616 view == VIEW(REQ_VIEW_STAGE))
2617 request = REQ_REFRESH;
2622 if (view && view->lines) {
2623 request = view->ops->request(view, request, &view->line[view->lineno]);
2624 if (request == REQ_NONE)
2631 case REQ_MOVE_PAGE_UP:
2632 case REQ_MOVE_PAGE_DOWN:
2633 case REQ_MOVE_FIRST_LINE:
2634 case REQ_MOVE_LAST_LINE:
2635 move_view(view, request);
2638 case REQ_SCROLL_LINE_DOWN:
2639 case REQ_SCROLL_LINE_UP:
2640 case REQ_SCROLL_PAGE_DOWN:
2641 case REQ_SCROLL_PAGE_UP:
2642 scroll_view(view, request);
2645 case REQ_VIEW_BLAME:
2647 report("No file chosen, press %s to open tree view",
2648 get_key(REQ_VIEW_TREE));
2651 open_view(view, request, OPEN_DEFAULT);
2656 report("No file chosen, press %s to open tree view",
2657 get_key(REQ_VIEW_TREE));
2660 open_view(view, request, OPEN_DEFAULT);
2663 case REQ_VIEW_PAGER:
2664 if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2665 report("No pager content, press %s to run command from prompt",
2666 get_key(REQ_PROMPT));
2669 open_view(view, request, OPEN_DEFAULT);
2672 case REQ_VIEW_STAGE:
2673 if (!VIEW(REQ_VIEW_STAGE)->lines) {
2674 report("No stage content, press %s to open the status view and choose file",
2675 get_key(REQ_VIEW_STATUS));
2678 open_view(view, request, OPEN_DEFAULT);
2681 case REQ_VIEW_STATUS:
2682 if (opt_is_inside_work_tree == FALSE) {
2683 report("The status view requires a working tree");
2686 open_view(view, request, OPEN_DEFAULT);
2694 open_view(view, request, OPEN_DEFAULT);
2699 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2701 if ((view == VIEW(REQ_VIEW_DIFF) &&
2702 view->parent == VIEW(REQ_VIEW_MAIN)) ||
2703 (view == VIEW(REQ_VIEW_DIFF) &&
2704 view->parent == VIEW(REQ_VIEW_BLAME)) ||
2705 (view == VIEW(REQ_VIEW_STAGE) &&
2706 view->parent == VIEW(REQ_VIEW_STATUS)) ||
2707 (view == VIEW(REQ_VIEW_BLOB) &&
2708 view->parent == VIEW(REQ_VIEW_TREE))) {
2711 view = view->parent;
2712 line = view->lineno;
2713 move_view(view, request);
2714 if (view_is_displayed(view))
2715 update_view_title(view);
2716 if (line != view->lineno)
2717 view->ops->request(view, REQ_ENTER,
2718 &view->line[view->lineno]);
2721 move_view(view, request);
2727 int nviews = displayed_views();
2728 int next_view = (current_view + 1) % nviews;
2730 if (next_view == current_view) {
2731 report("Only one view is displayed");
2735 current_view = next_view;
2736 /* Blur out the title of the previous view. */
2737 update_view_title(view);
2742 report("Refreshing is not yet supported for the %s view", view->name);
2746 if (displayed_views() == 2)
2747 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
2750 case REQ_TOGGLE_LINENO:
2751 opt_line_number = !opt_line_number;
2755 case REQ_TOGGLE_DATE:
2756 opt_date = !opt_date;
2760 case REQ_TOGGLE_AUTHOR:
2761 opt_author = !opt_author;
2765 case REQ_TOGGLE_REV_GRAPH:
2766 opt_rev_graph = !opt_rev_graph;
2770 case REQ_TOGGLE_REFS:
2771 opt_show_refs = !opt_show_refs;
2776 /* Always reload^Wrerun commands from the prompt. */
2777 open_view(view, opt_request, OPEN_RELOAD);
2781 case REQ_SEARCH_BACK:
2782 search_view(view, request);
2787 find_next(view, request);
2790 case REQ_STOP_LOADING:
2791 for (i = 0; i < ARRAY_SIZE(views); i++) {
2794 report("Stopped loading the %s view", view->name),
2799 case REQ_SHOW_VERSION:
2800 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
2803 case REQ_SCREEN_RESIZE:
2806 case REQ_SCREEN_REDRAW:
2811 report("Nothing to edit");
2816 report("Nothing to enter");
2820 case REQ_VIEW_CLOSE:
2821 /* XXX: Mark closed views by letting view->parent point to the
2822 * view itself. Parents to closed view should never be
2825 view->parent->parent != view->parent) {
2826 memset(display, 0, sizeof(display));
2828 display[current_view] = view->parent;
2829 view->parent = view;
2839 /* An unknown key will show most commonly used commands. */
2840 report("Unknown key, press 'h' for help");
2853 pager_draw(struct view *view, struct line *line, unsigned int lineno)
2855 char *text = line->data;
2858 if (opt_line_number) {
2859 col += draw_lineno(view, lineno, view->width);
2860 if (col >= view->width)
2864 draw_text(view, line->type, text, view->width - col, TRUE);
2869 add_describe_ref(char *buf, size_t *bufpos, char *commit_id, const char *sep)
2871 char refbuf[SIZEOF_STR];
2875 if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id))
2878 pipe = popen(refbuf, "r");
2882 if ((ref = fgets(refbuf, sizeof(refbuf), pipe)))
2883 ref = chomp_string(ref);
2889 /* This is the only fatal call, since it can "corrupt" the buffer. */
2890 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
2897 add_pager_refs(struct view *view, struct line *line)
2899 char buf[SIZEOF_STR];
2900 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
2902 size_t bufpos = 0, refpos = 0;
2903 const char *sep = "Refs: ";
2904 bool is_tag = FALSE;
2906 assert(line->type == LINE_COMMIT);
2908 refs = get_refs(commit_id);
2910 if (view == VIEW(REQ_VIEW_DIFF))
2911 goto try_add_describe_ref;
2916 struct ref *ref = refs[refpos];
2917 char *fmt = ref->tag ? "%s[%s]" :
2918 ref->remote ? "%s<%s>" : "%s%s";
2920 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
2925 } while (refs[refpos++]->next);
2927 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
2928 try_add_describe_ref:
2929 /* Add <tag>-g<commit_id> "fake" reference. */
2930 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
2937 if (!realloc_lines(view, view->line_size + 1))
2940 add_line_text(view, buf, LINE_PP_REFS);
2944 pager_read(struct view *view, char *data)
2951 line = add_line_text(view, data, get_line_type(data));
2955 if (line->type == LINE_COMMIT &&
2956 (view == VIEW(REQ_VIEW_DIFF) ||
2957 view == VIEW(REQ_VIEW_LOG)))
2958 add_pager_refs(view, line);
2964 pager_request(struct view *view, enum request request, struct line *line)
2968 if (request != REQ_ENTER)
2971 if (line->type == LINE_COMMIT &&
2972 (view == VIEW(REQ_VIEW_LOG) ||
2973 view == VIEW(REQ_VIEW_PAGER))) {
2974 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
2978 /* Always scroll the view even if it was split. That way
2979 * you can use Enter to scroll through the log view and
2980 * split open each commit diff. */
2981 scroll_view(view, REQ_SCROLL_LINE_DOWN);
2983 /* FIXME: A minor workaround. Scrolling the view will call report("")
2984 * but if we are scrolling a non-current view this won't properly
2985 * update the view title. */
2987 update_view_title(view);
2993 pager_grep(struct view *view, struct line *line)
2996 char *text = line->data;
3001 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3008 pager_select(struct view *view, struct line *line)
3010 if (line->type == LINE_COMMIT) {
3011 char *text = (char *)line->data + STRING_SIZE("commit ");
3013 if (view != VIEW(REQ_VIEW_PAGER))
3014 string_copy_rev(view->ref, text);
3015 string_copy_rev(ref_commit, text);
3019 static struct view_ops pager_ops = {
3035 help_open(struct view *view)
3038 int lines = ARRAY_SIZE(req_info) + 2;
3041 if (view->lines > 0)
3044 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3045 if (!req_info[i].request)
3048 lines += run_requests + 1;
3050 view->line = calloc(lines, sizeof(*view->line));
3054 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3056 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3059 if (req_info[i].request == REQ_NONE)
3062 if (!req_info[i].request) {
3063 add_line_text(view, "", LINE_DEFAULT);
3064 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3068 key = get_key(req_info[i].request);
3070 key = "(no key defined)";
3072 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
3075 add_line_text(view, buf, LINE_DEFAULT);
3079 add_line_text(view, "", LINE_DEFAULT);
3080 add_line_text(view, "External commands:", LINE_DEFAULT);
3083 for (i = 0; i < run_requests; i++) {
3084 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3090 key = get_key_name(req->key);
3092 key = "(no key defined)";
3094 if (!string_format(buf, " %-10s %-14s `%s`",
3095 keymap_table[req->keymap].name,
3099 add_line_text(view, buf, LINE_DEFAULT);
3105 static struct view_ops help_ops = {
3120 struct tree_stack_entry {
3121 struct tree_stack_entry *prev; /* Entry below this in the stack */
3122 unsigned long lineno; /* Line number to restore */
3123 char *name; /* Position of name in opt_path */
3126 /* The top of the path stack. */
3127 static struct tree_stack_entry *tree_stack = NULL;
3128 unsigned long tree_lineno = 0;
3131 pop_tree_stack_entry(void)
3133 struct tree_stack_entry *entry = tree_stack;
3135 tree_lineno = entry->lineno;
3137 tree_stack = entry->prev;
3142 push_tree_stack_entry(char *name, unsigned long lineno)
3144 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3145 size_t pathlen = strlen(opt_path);
3150 entry->prev = tree_stack;
3151 entry->name = opt_path + pathlen;
3154 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3155 pop_tree_stack_entry();
3159 /* Move the current line to the first tree entry. */
3161 entry->lineno = lineno;
3164 /* Parse output from git-ls-tree(1):
3166 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3167 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3168 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3169 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3172 #define SIZEOF_TREE_ATTR \
3173 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3175 #define TREE_UP_FORMAT "040000 tree %s\t.."
3178 tree_compare_entry(enum line_type type1, char *name1,
3179 enum line_type type2, char *name2)
3181 if (type1 != type2) {
3182 if (type1 == LINE_TREE_DIR)
3187 return strcmp(name1, name2);
3191 tree_path(struct line *line)
3193 char *path = line->data;
3195 return path + SIZEOF_TREE_ATTR;
3199 tree_read(struct view *view, char *text)
3201 size_t textlen = text ? strlen(text) : 0;
3202 char buf[SIZEOF_STR];
3204 enum line_type type;
3205 bool first_read = view->lines == 0;
3209 if (textlen <= SIZEOF_TREE_ATTR)
3212 type = text[STRING_SIZE("100644 ")] == 't'
3213 ? LINE_TREE_DIR : LINE_TREE_FILE;
3216 /* Add path info line */
3217 if (!string_format(buf, "Directory path /%s", opt_path) ||
3218 !realloc_lines(view, view->line_size + 1) ||
3219 !add_line_text(view, buf, LINE_DEFAULT))
3222 /* Insert "link" to parent directory. */
3224 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
3225 !realloc_lines(view, view->line_size + 1) ||
3226 !add_line_text(view, buf, LINE_TREE_DIR))
3231 /* Strip the path part ... */
3233 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3234 size_t striplen = strlen(opt_path);
3235 char *path = text + SIZEOF_TREE_ATTR;
3237 if (pathlen > striplen)
3238 memmove(path, path + striplen,
3239 pathlen - striplen + 1);
3242 /* Skip "Directory ..." and ".." line. */
3243 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
3244 struct line *line = &view->line[pos];
3245 char *path1 = tree_path(line);
3246 char *path2 = text + SIZEOF_TREE_ATTR;
3247 int cmp = tree_compare_entry(line->type, path1, type, path2);
3252 text = strdup(text);
3256 if (view->lines > pos)
3257 memmove(&view->line[pos + 1], &view->line[pos],
3258 (view->lines - pos) * sizeof(*line));
3260 line = &view->line[pos];
3267 if (!add_line_text(view, text, type))
3270 if (tree_lineno > view->lineno) {
3271 view->lineno = tree_lineno;
3279 tree_request(struct view *view, enum request request, struct line *line)
3281 enum open_flags flags;
3283 if (request == REQ_VIEW_BLAME) {
3284 char *filename = tree_path(line);
3286 if (line->type == LINE_TREE_DIR) {
3287 report("Cannot show blame for directory %s", opt_path);
3291 string_copy(opt_ref, view->vid);
3292 string_format(opt_file, "%s%s", opt_path, filename);
3295 if (request == REQ_TREE_PARENT) {
3298 request = REQ_ENTER;
3299 line = &view->line[1];
3301 /* quit view if at top of tree */
3302 return REQ_VIEW_CLOSE;
3305 if (request != REQ_ENTER)
3308 /* Cleanup the stack if the tree view is at a different tree. */
3309 while (!*opt_path && tree_stack)
3310 pop_tree_stack_entry();
3312 switch (line->type) {
3314 /* Depending on whether it is a subdir or parent (updir?) link
3315 * mangle the path buffer. */
3316 if (line == &view->line[1] && *opt_path) {
3317 pop_tree_stack_entry();
3320 char *basename = tree_path(line);
3322 push_tree_stack_entry(basename, view->lineno);
3325 /* Trees and subtrees share the same ID, so they are not not
3326 * unique like blobs. */
3327 flags = OPEN_RELOAD;
3328 request = REQ_VIEW_TREE;
3331 case LINE_TREE_FILE:
3332 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3333 request = REQ_VIEW_BLOB;
3340 open_view(view, request, flags);
3341 if (request == REQ_VIEW_TREE) {
3342 view->lineno = tree_lineno;
3349 tree_select(struct view *view, struct line *line)
3351 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3353 if (line->type == LINE_TREE_FILE) {
3354 string_copy_rev(ref_blob, text);
3356 } else if (line->type != LINE_TREE_DIR) {
3360 string_copy_rev(view->ref, text);
3363 static struct view_ops tree_ops = {
3374 blob_read(struct view *view, char *line)
3378 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3381 static struct view_ops blob_ops = {
3394 * Loading the blame view is a two phase job:
3396 * 1. File content is read either using opt_file from the
3397 * filesystem or using git-cat-file.
3398 * 2. Then blame information is incrementally added by
3399 * reading output from git-blame.
3402 struct blame_commit {
3403 char id[SIZEOF_REV]; /* SHA1 ID. */
3404 char title[128]; /* First line of the commit message. */
3405 char author[75]; /* Author of the commit. */
3406 struct tm time; /* Date from the author ident. */
3407 char filename[128]; /* Name of file. */
3411 struct blame_commit *commit;
3412 unsigned int header:1;
3416 #define BLAME_CAT_FILE_CMD "git cat-file blob %s:%s"
3417 #define BLAME_INCREMENTAL_CMD "git blame --incremental %s %s"
3420 blame_open(struct view *view)
3422 char path[SIZEOF_STR];
3423 char ref[SIZEOF_STR] = "";
3425 if (sq_quote(path, 0, opt_file) >= sizeof(path))
3428 if (*opt_ref && sq_quote(ref, 0, opt_ref) >= sizeof(ref))
3432 if (!string_format(view->cmd, BLAME_CAT_FILE_CMD, ref, path))
3435 view->pipe = fopen(opt_file, "r");
3437 !string_format(view->cmd, BLAME_CAT_FILE_CMD, "HEAD", path))
3442 view->pipe = popen(view->cmd, "r");
3446 if (!string_format(view->cmd, BLAME_INCREMENTAL_CMD, ref, path))
3449 string_format(view->ref, "%s ...", opt_file);
3450 string_copy_rev(view->vid, opt_file);
3451 set_nonblocking_input(TRUE);
3456 for (i = 0; i < view->lines; i++)
3457 free(view->line[i].data);
3461 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
3462 view->offset = view->lines = view->lineno = 0;
3464 view->start_time = time(NULL);
3469 static struct blame_commit *
3470 get_blame_commit(struct view *view, const char *id)
3474 for (i = 0; i < view->lines; i++) {
3475 struct blame *blame = view->line[i].data;
3480 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3481 return blame->commit;
3485 struct blame_commit *commit = calloc(1, sizeof(*commit));
3488 string_ncopy(commit->id, id, SIZEOF_REV);
3494 parse_number(char **posref, size_t *number, size_t min, size_t max)
3496 char *pos = *posref;
3499 pos = strchr(pos + 1, ' ');
3500 if (!pos || !isdigit(pos[1]))
3502 *number = atoi(pos + 1);
3503 if (*number < min || *number > max)
3510 static struct blame_commit *
3511 parse_blame_commit(struct view *view, char *text, int *blamed)
3513 struct blame_commit *commit;
3514 struct blame *blame;
3515 char *pos = text + SIZEOF_REV - 1;
3519 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3522 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3523 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3526 commit = get_blame_commit(view, text);
3532 struct line *line = &view->line[lineno + group - 1];
3535 blame->commit = commit;
3536 blame->header = !group;
3544 blame_read_file(struct view *view, char *line)
3549 if (view->lines > 0)
3550 pipe = popen(view->cmd, "r");
3551 else if (!view->parent)
3552 die("No blame exist for %s", view->vid);
3555 report("Failed to load blame data");
3564 size_t linelen = strlen(line);
3565 struct blame *blame = malloc(sizeof(*blame) + linelen);
3570 blame->commit = NULL;
3571 strncpy(blame->text, line, linelen);
3572 blame->text[linelen] = 0;
3573 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3578 match_blame_header(const char *name, char **line)
3580 size_t namelen = strlen(name);
3581 bool matched = !strncmp(name, *line, namelen);
3590 blame_read(struct view *view, char *line)
3592 static struct blame_commit *commit = NULL;
3593 static int blamed = 0;
3594 static time_t author_time;
3597 return blame_read_file(view, line);
3603 string_format(view->ref, "%s", view->vid);
3604 if (view_is_displayed(view)) {
3605 update_view_title(view);
3606 redraw_view_from(view, 0);
3612 commit = parse_blame_commit(view, line, &blamed);
3613 string_format(view->ref, "%s %2d%%", view->vid,
3614 blamed * 100 / view->lines);
3616 } else if (match_blame_header("author ", &line)) {
3617 string_ncopy(commit->author, line, strlen(line));
3619 } else if (match_blame_header("author-time ", &line)) {
3620 author_time = (time_t) atol(line);
3622 } else if (match_blame_header("author-tz ", &line)) {
3625 tz = ('0' - line[1]) * 60 * 60 * 10;
3626 tz += ('0' - line[2]) * 60 * 60;
3627 tz += ('0' - line[3]) * 60;
3628 tz += ('0' - line[4]) * 60;
3634 gmtime_r(&author_time, &commit->time);
3636 } else if (match_blame_header("summary ", &line)) {
3637 string_ncopy(commit->title, line, strlen(line));
3639 } else if (match_blame_header("filename ", &line)) {
3640 string_ncopy(commit->filename, line, strlen(line));
3648 blame_draw(struct view *view, struct line *line, unsigned int lineno)
3650 struct blame *blame = line->data;
3651 struct tm *time = NULL;
3652 char *id = NULL, *author = NULL;
3655 if (blame->commit && *blame->commit->filename) {
3656 id = blame->commit->id;
3657 author = blame->commit->author;
3658 time = &blame->commit->time;
3662 col += draw_date(view, time, view->width);
3663 if (col >= view->width)
3668 int max = MIN(AUTHOR_COLS - 1, view->width - col);
3670 set_view_attr(view, LINE_MAIN_AUTHOR);
3672 draw_text(view, LINE_MAIN_AUTHOR, author, max, TRUE);
3674 if (col >= view->width)
3676 wmove(view->win, lineno, col);
3680 int max = view->width - col;
3682 col += draw_field(view, LINE_BLAME_ID, id, ID_COLS, max, FALSE);
3683 if (col >= view->width)
3687 col += draw_lineno(view, lineno, view->width - col);
3688 if (col >= view->width)
3691 col += draw_text(view, LINE_DEFAULT, blame->text, view->width - col, TRUE);
3696 blame_request(struct view *view, enum request request, struct line *line)
3698 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3699 struct blame *blame = line->data;
3703 if (!blame->commit) {
3704 report("No commit loaded yet");
3708 if (!strcmp(blame->commit->id, NULL_ID)) {
3709 char path[SIZEOF_STR];
3711 if (sq_quote(path, 0, view->vid) >= sizeof(path))
3713 string_format(opt_cmd, "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s 2>/dev/null", path);
3716 open_view(view, REQ_VIEW_DIFF, flags);
3727 blame_grep(struct view *view, struct line *line)
3729 struct blame *blame = line->data;
3730 struct blame_commit *commit = blame->commit;
3733 #define MATCH(text, on) \
3734 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3737 char buf[DATE_COLS + 1];
3739 if (MATCH(commit->title, 1) ||
3740 MATCH(commit->author, opt_author) ||
3741 MATCH(commit->id, opt_date))
3744 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
3749 return MATCH(blame->text, 1);
3755 blame_select(struct view *view, struct line *line)
3757 struct blame *blame = line->data;
3758 struct blame_commit *commit = blame->commit;
3763 if (!strcmp(commit->id, NULL_ID))
3764 string_ncopy(ref_commit, "HEAD", 4);
3766 string_copy_rev(ref_commit, commit->id);
3769 static struct view_ops blame_ops = {
3787 char rev[SIZEOF_REV];
3788 char name[SIZEOF_STR];
3792 char rev[SIZEOF_REV];
3793 char name[SIZEOF_STR];
3797 static char status_onbranch[SIZEOF_STR];
3798 static struct status stage_status;
3799 static enum line_type stage_line_type;
3801 /* Get fields from the diff line:
3802 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3805 status_get_diff(struct status *file, char *buf, size_t bufsize)
3807 char *old_mode = buf + 1;
3808 char *new_mode = buf + 8;
3809 char *old_rev = buf + 15;
3810 char *new_rev = buf + 56;
3811 char *status = buf + 97;
3814 old_mode[-1] != ':' ||
3815 new_mode[-1] != ' ' ||
3816 old_rev[-1] != ' ' ||
3817 new_rev[-1] != ' ' ||
3821 file->status = *status;
3823 string_copy_rev(file->old.rev, old_rev);
3824 string_copy_rev(file->new.rev, new_rev);
3826 file->old.mode = strtoul(old_mode, NULL, 8);
3827 file->new.mode = strtoul(new_mode, NULL, 8);
3829 file->old.name[0] = file->new.name[0] = 0;
3835 status_run(struct view *view, const char cmd[], char status, enum line_type type)
3837 struct status *file = NULL;
3838 struct status *unmerged = NULL;
3839 char buf[SIZEOF_STR * 4];
3843 pipe = popen(cmd, "r");
3847 add_line_data(view, NULL, type);
3849 while (!feof(pipe) && !ferror(pipe)) {
3853 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3856 bufsize += readsize;
3858 /* Process while we have NUL chars. */
3859 while ((sep = memchr(buf, 0, bufsize))) {
3860 size_t sepsize = sep - buf + 1;
3863 if (!realloc_lines(view, view->line_size + 1))
3866 file = calloc(1, sizeof(*file));
3870 add_line_data(view, file, type);
3873 /* Parse diff info part. */
3875 file->status = status;
3877 string_copy(file->old.rev, NULL_ID);
3879 } else if (!file->status) {
3880 if (!status_get_diff(file, buf, sepsize))
3884 memmove(buf, sep + 1, bufsize);
3886 sep = memchr(buf, 0, bufsize);
3889 sepsize = sep - buf + 1;
3891 /* Collapse all 'M'odified entries that
3892 * follow a associated 'U'nmerged entry.
3894 if (file->status == 'U') {
3897 } else if (unmerged) {
3898 int collapse = !strcmp(buf, unmerged->new.name);
3909 /* Grab the old name for rename/copy. */
3910 if (!*file->old.name &&
3911 (file->status == 'R' || file->status == 'C')) {
3912 sepsize = sep - buf + 1;
3913 string_ncopy(file->old.name, buf, sepsize);
3915 memmove(buf, sep + 1, bufsize);
3917 sep = memchr(buf, 0, bufsize);
3920 sepsize = sep - buf + 1;
3923 /* git-ls-files just delivers a NUL separated
3924 * list of file names similar to the second half
3925 * of the git-diff-* output. */
3926 string_ncopy(file->new.name, buf, sepsize);
3927 if (!*file->old.name)
3928 string_copy(file->old.name, file->new.name);
3930 memmove(buf, sep + 1, bufsize);
3941 if (!view->line[view->lines - 1].data)
3942 add_line_data(view, NULL, LINE_STAT_NONE);
3948 /* Don't show unmerged entries in the staged section. */
3949 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD"
3950 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
3951 #define STATUS_LIST_OTHER_CMD \
3952 "git ls-files -z --others --exclude-per-directory=.gitignore"
3953 #define STATUS_LIST_NO_HEAD_CMD \
3954 "git ls-files -z --cached --exclude-per-directory=.gitignore"
3956 #define STATUS_DIFF_INDEX_SHOW_CMD \
3957 "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null"
3959 #define STATUS_DIFF_FILES_SHOW_CMD \
3960 "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null"
3962 #define STATUS_DIFF_NO_HEAD_SHOW_CMD \
3963 "git diff --no-color --patch-with-stat /dev/null %s 2>/dev/null"
3965 /* First parse staged info using git-diff-index(1), then parse unstaged
3966 * info using git-diff-files(1), and finally untracked files using
3967 * git-ls-files(1). */
3969 status_open(struct view *view)
3971 struct stat statbuf;
3972 char exclude[SIZEOF_STR];
3973 char indexcmd[SIZEOF_STR] = STATUS_DIFF_INDEX_CMD;
3974 char othercmd[SIZEOF_STR] = STATUS_LIST_OTHER_CMD;
3975 unsigned long prev_lineno = view->lineno;
3976 char indexstatus = 0;
3979 for (i = 0; i < view->lines; i++)
3980 free(view->line[i].data);
3982 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
3985 if (!realloc_lines(view, view->line_size + 7))
3988 add_line_data(view, NULL, LINE_STAT_HEAD);
3990 string_copy(status_onbranch, "Initial commit");
3991 else if (!*opt_head)
3992 string_copy(status_onbranch, "Not currently on any branch");
3993 else if (!string_format(status_onbranch, "On branch %s", opt_head))
3997 string_copy(indexcmd, STATUS_LIST_NO_HEAD_CMD);
4001 if (!string_format(exclude, "%s/info/exclude", opt_git_dir))
4004 if (stat(exclude, &statbuf) >= 0) {
4005 size_t cmdsize = strlen(othercmd);
4007 if (!string_format_from(othercmd, &cmdsize, " %s", "--exclude-from=") ||
4008 sq_quote(othercmd, cmdsize, exclude) >= sizeof(othercmd))
4011 cmdsize = strlen(indexcmd);
4013 (!string_format_from(indexcmd, &cmdsize, " %s", "--exclude-from=") ||
4014 sq_quote(indexcmd, cmdsize, exclude) >= sizeof(indexcmd)))
4018 system("git update-index -q --refresh >/dev/null 2>/dev/null");
4020 if (!status_run(view, indexcmd, indexstatus, LINE_STAT_STAGED) ||
4021 !status_run(view, STATUS_DIFF_FILES_CMD, 0, LINE_STAT_UNSTAGED) ||
4022 !status_run(view, othercmd, '?', LINE_STAT_UNTRACKED))
4025 /* If all went well restore the previous line number to stay in
4026 * the context or select a line with something that can be
4028 if (prev_lineno >= view->lines)
4029 prev_lineno = view->lines - 1;
4030 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4032 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4035 /* If the above fails, always skip the "On branch" line. */
4036 if (prev_lineno < view->lines)
4037 view->lineno = prev_lineno;
4041 if (view->lineno < view->offset)
4042 view->offset = view->lineno;
4043 else if (view->offset + view->height <= view->lineno)
4044 view->offset = view->lineno - view->height + 1;
4050 status_draw(struct view *view, struct line *line, unsigned int lineno)
4052 struct status *status = line->data;
4053 enum line_type type;
4058 switch (line->type) {
4059 case LINE_STAT_STAGED:
4060 type = LINE_STAT_SECTION;
4061 text = "Changes to be committed:";
4064 case LINE_STAT_UNSTAGED:
4065 type = LINE_STAT_SECTION;
4066 text = "Changed but not updated:";
4069 case LINE_STAT_UNTRACKED:
4070 type = LINE_STAT_SECTION;
4071 text = "Untracked files:";
4074 case LINE_STAT_NONE:
4075 type = LINE_DEFAULT;
4076 text = " (no files)";
4079 case LINE_STAT_HEAD:
4080 type = LINE_STAT_HEAD;
4081 text = status_onbranch;
4088 char buf[] = { status->status, ' ', ' ', ' ', 0 };
4090 col += draw_text(view, line->type, buf, view->width, TRUE);
4091 type = LINE_DEFAULT;
4092 text = status->new.name;
4095 draw_text(view, type, text, view->width - col, TRUE);
4100 status_enter(struct view *view, struct line *line)
4102 struct status *status = line->data;
4103 char oldpath[SIZEOF_STR] = "";
4104 char newpath[SIZEOF_STR] = "";
4107 enum open_flags split;
4109 if (line->type == LINE_STAT_NONE ||
4110 (!status && line[1].type == LINE_STAT_NONE)) {
4111 report("No file to diff");
4116 if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath))
4118 /* Diffs for unmerged entries are empty when pasing the
4119 * new path, so leave it empty. */
4120 if (status->status != 'U' &&
4121 sq_quote(newpath, 0, status->new.name) >= sizeof(newpath))
4126 line->type != LINE_STAT_UNTRACKED &&
4127 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
4130 switch (line->type) {
4131 case LINE_STAT_STAGED:
4133 if (!string_format_from(opt_cmd, &cmdsize,
4134 STATUS_DIFF_NO_HEAD_SHOW_CMD,
4138 if (!string_format_from(opt_cmd, &cmdsize,
4139 STATUS_DIFF_INDEX_SHOW_CMD,
4145 info = "Staged changes to %s";
4147 info = "Staged changes";
4150 case LINE_STAT_UNSTAGED:
4151 if (!string_format_from(opt_cmd, &cmdsize,
4152 STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath))
4155 info = "Unstaged changes to %s";
4157 info = "Unstaged changes";
4160 case LINE_STAT_UNTRACKED:
4165 report("No file to show");
4169 opt_pipe = fopen(status->new.name, "r");
4170 info = "Untracked file %s";
4173 case LINE_STAT_HEAD:
4177 die("line type %d not handled in switch", line->type);
4180 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4181 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | split);
4182 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4184 stage_status = *status;
4186 memset(&stage_status, 0, sizeof(stage_status));
4189 stage_line_type = line->type;
4190 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4197 status_exists(struct status *status, enum line_type type)
4199 struct view *view = VIEW(REQ_VIEW_STATUS);
4202 for (line = view->line; line < view->line + view->lines; line++) {
4203 struct status *pos = line->data;
4205 if (line->type == type && pos &&
4206 !strcmp(status->new.name, pos->new.name))
4215 status_update_prepare(enum line_type type)
4217 char cmd[SIZEOF_STR];
4221 type != LINE_STAT_UNTRACKED &&
4222 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4226 case LINE_STAT_STAGED:
4227 string_add(cmd, cmdsize, "git update-index -z --index-info");
4230 case LINE_STAT_UNSTAGED:
4231 case LINE_STAT_UNTRACKED:
4232 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
4236 die("line type %d not handled in switch", type);
4239 return popen(cmd, "w");
4243 status_update_write(FILE *pipe, struct status *status, enum line_type type)
4245 char buf[SIZEOF_STR];
4250 case LINE_STAT_STAGED:
4251 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4254 status->old.name, 0))
4258 case LINE_STAT_UNSTAGED:
4259 case LINE_STAT_UNTRACKED:
4260 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4265 die("line type %d not handled in switch", type);
4268 while (!ferror(pipe) && written < bufsize) {
4269 written += fwrite(buf + written, 1, bufsize - written, pipe);
4272 return written == bufsize;
4276 status_update_file(struct status *status, enum line_type type)
4278 FILE *pipe = status_update_prepare(type);
4284 result = status_update_write(pipe, status, type);
4290 status_update_files(struct view *view, struct line *line)
4292 FILE *pipe = status_update_prepare(line->type);
4294 struct line *pos = view->line + view->lines;
4301 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4304 for (file = 0, done = 0; result && file < files; line++, file++) {
4305 int almost_done = file * 100 / files;
4307 if (almost_done > done) {
4309 string_format(view->ref, "updating file %u of %u (%d%% done)",
4311 update_view_title(view);
4313 result = status_update_write(pipe, line->data, line->type);
4321 status_update(struct view *view)
4323 struct line *line = &view->line[view->lineno];
4325 assert(view->lines);
4328 /* This should work even for the "On branch" line. */
4329 if (line < view->line + view->lines && !line[1].data) {
4330 report("Nothing to update");
4334 if (!status_update_files(view, line + 1)) {
4335 report("Failed to update file status");
4339 } else if (!status_update_file(line->data, line->type)) {
4340 report("Failed to update file status");
4348 status_request(struct view *view, enum request request, struct line *line)
4350 struct status *status = line->data;
4353 case REQ_STATUS_UPDATE:
4354 if (!status_update(view))
4358 case REQ_STATUS_MERGE:
4359 if (!status || status->status != 'U') {
4360 report("Merging only possible for files with unmerged status ('U').");
4363 open_mergetool(status->new.name);
4370 open_editor(status->status != '?', status->new.name);
4373 case REQ_VIEW_BLAME:
4375 string_copy(opt_file, status->new.name);
4381 /* After returning the status view has been split to
4382 * show the stage view. No further reloading is
4384 status_enter(view, line);
4388 /* Simply reload the view. */
4395 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4401 status_select(struct view *view, struct line *line)
4403 struct status *status = line->data;
4404 char file[SIZEOF_STR] = "all files";
4408 if (status && !string_format(file, "'%s'", status->new.name))
4411 if (!status && line[1].type == LINE_STAT_NONE)
4414 switch (line->type) {
4415 case LINE_STAT_STAGED:
4416 text = "Press %s to unstage %s for commit";
4419 case LINE_STAT_UNSTAGED:
4420 text = "Press %s to stage %s for commit";
4423 case LINE_STAT_UNTRACKED:
4424 text = "Press %s to stage %s for addition";
4427 case LINE_STAT_HEAD:
4428 case LINE_STAT_NONE:
4429 text = "Nothing to update";
4433 die("line type %d not handled in switch", line->type);
4436 if (status && status->status == 'U') {
4437 text = "Press %s to resolve conflict in %s";
4438 key = get_key(REQ_STATUS_MERGE);
4441 key = get_key(REQ_STATUS_UPDATE);
4444 string_format(view->ref, text, key, file);
4448 status_grep(struct view *view, struct line *line)
4450 struct status *status = line->data;
4451 enum { S_STATUS, S_NAME, S_END } state;
4458 for (state = S_STATUS; state < S_END; state++) {
4462 case S_NAME: text = status->new.name; break;
4464 buf[0] = status->status;
4472 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4479 static struct view_ops status_ops = {
4491 stage_diff_line(FILE *pipe, struct line *line)
4493 char *buf = line->data;
4494 size_t bufsize = strlen(buf);
4497 while (!ferror(pipe) && written < bufsize) {
4498 written += fwrite(buf + written, 1, bufsize - written, pipe);
4503 return written == bufsize;
4507 stage_diff_write(FILE *pipe, struct line *line, struct line *end)
4509 while (line < end) {
4510 if (!stage_diff_line(pipe, line++))
4512 if (line->type == LINE_DIFF_CHUNK ||
4513 line->type == LINE_DIFF_HEADER)
4520 static struct line *
4521 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4523 for (; view->line < line; line--)
4524 if (line->type == type)
4531 stage_update_chunk(struct view *view, struct line *chunk)
4533 char cmd[SIZEOF_STR];
4535 struct line *diff_hdr;
4538 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4543 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4546 if (!string_format_from(cmd, &cmdsize,
4547 "git apply --whitespace=nowarn --cached %s - && "
4548 "git update-index -q --unmerged --refresh 2>/dev/null",
4549 stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
4552 pipe = popen(cmd, "w");
4556 if (!stage_diff_write(pipe, diff_hdr, chunk) ||
4557 !stage_diff_write(pipe, chunk, view->line + view->lines))
4562 return chunk ? TRUE : FALSE;
4566 stage_update(struct view *view, struct line *line)
4568 struct line *chunk = NULL;
4570 if (!opt_no_head && stage_line_type != LINE_STAT_UNTRACKED)
4571 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4574 if (!stage_update_chunk(view, chunk)) {
4575 report("Failed to apply chunk");
4579 } else if (!stage_status.status) {
4580 view = VIEW(REQ_VIEW_STATUS);
4582 for (line = view->line; line < view->line + view->lines; line++)
4583 if (line->type == stage_line_type)
4586 if (!status_update_files(view, line + 1)) {
4587 report("Failed to update files");
4591 } else if (!status_update_file(&stage_status, stage_line_type)) {
4592 report("Failed to update file");
4600 stage_request(struct view *view, enum request request, struct line *line)
4603 case REQ_STATUS_UPDATE:
4604 if (!stage_update(view, line))
4609 if (!stage_status.new.name[0])
4612 open_editor(stage_status.status != '?', stage_status.new.name);
4616 /* Reload everything ... */
4619 case REQ_VIEW_BLAME:
4620 if (stage_status.new.name[0]) {
4621 string_copy(opt_file, stage_status.new.name);
4627 return pager_request(view, request, line);
4633 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4635 /* Check whether the staged entry still exists, and close the
4636 * stage view if it doesn't. */
4637 if (!status_exists(&stage_status, stage_line_type))
4638 return REQ_VIEW_CLOSE;
4640 if (stage_line_type == LINE_STAT_UNTRACKED)
4641 opt_pipe = fopen(stage_status.new.name, "r");
4643 string_copy(opt_cmd, view->cmd);
4644 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4649 static struct view_ops stage_ops = {
4665 char id[SIZEOF_REV]; /* SHA1 ID. */
4666 char title[128]; /* First line of the commit message. */
4667 char author[75]; /* Author of the commit. */
4668 struct tm time; /* Date from the author ident. */
4669 struct ref **refs; /* Repository references. */
4670 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
4671 size_t graph_size; /* The width of the graph array. */
4672 bool has_parents; /* Rewritten --parents seen. */
4675 /* Size of rev graph with no "padding" columns */
4676 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
4679 struct rev_graph *prev, *next, *parents;
4680 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
4682 struct commit *commit;
4684 unsigned int boundary:1;
4687 /* Parents of the commit being visualized. */
4688 static struct rev_graph graph_parents[4];
4690 /* The current stack of revisions on the graph. */
4691 static struct rev_graph graph_stacks[4] = {
4692 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
4693 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
4694 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
4695 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
4699 graph_parent_is_merge(struct rev_graph *graph)
4701 return graph->parents->size > 1;
4705 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
4707 struct commit *commit = graph->commit;
4709 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
4710 commit->graph[commit->graph_size++] = symbol;
4714 done_rev_graph(struct rev_graph *graph)
4716 if (graph_parent_is_merge(graph) &&
4717 graph->pos < graph->size - 1 &&
4718 graph->next->size == graph->size + graph->parents->size - 1) {
4719 size_t i = graph->pos + graph->parents->size - 1;
4721 graph->commit->graph_size = i * 2;
4722 while (i < graph->next->size - 1) {
4723 append_to_rev_graph(graph, ' ');
4724 append_to_rev_graph(graph, '\\');
4729 graph->size = graph->pos = 0;
4730 graph->commit = NULL;
4731 memset(graph->parents, 0, sizeof(*graph->parents));
4735 push_rev_graph(struct rev_graph *graph, char *parent)
4739 /* "Collapse" duplicate parents lines.
4741 * FIXME: This needs to also update update the drawn graph but
4742 * for now it just serves as a method for pruning graph lines. */
4743 for (i = 0; i < graph->size; i++)
4744 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
4747 if (graph->size < SIZEOF_REVITEMS) {
4748 string_copy_rev(graph->rev[graph->size++], parent);
4753 get_rev_graph_symbol(struct rev_graph *graph)
4757 if (graph->boundary)
4758 symbol = REVGRAPH_BOUND;
4759 else if (graph->parents->size == 0)
4760 symbol = REVGRAPH_INIT;
4761 else if (graph_parent_is_merge(graph))
4762 symbol = REVGRAPH_MERGE;
4763 else if (graph->pos >= graph->size)
4764 symbol = REVGRAPH_BRANCH;
4766 symbol = REVGRAPH_COMMIT;
4772 draw_rev_graph(struct rev_graph *graph)
4775 chtype separator, line;
4777 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
4778 static struct rev_filler fillers[] = {
4784 chtype symbol = get_rev_graph_symbol(graph);
4785 struct rev_filler *filler;
4788 if (opt_line_graphics)
4789 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
4791 filler = &fillers[DEFAULT];
4793 for (i = 0; i < graph->pos; i++) {
4794 append_to_rev_graph(graph, filler->line);
4795 if (graph_parent_is_merge(graph->prev) &&
4796 graph->prev->pos == i)
4797 filler = &fillers[RSHARP];
4799 append_to_rev_graph(graph, filler->separator);
4802 /* Place the symbol for this revision. */
4803 append_to_rev_graph(graph, symbol);
4805 if (graph->prev->size > graph->size)
4806 filler = &fillers[RDIAG];
4808 filler = &fillers[DEFAULT];
4812 for (; i < graph->size; i++) {
4813 append_to_rev_graph(graph, filler->separator);
4814 append_to_rev_graph(graph, filler->line);
4815 if (graph_parent_is_merge(graph->prev) &&
4816 i < graph->prev->pos + graph->parents->size)
4817 filler = &fillers[RSHARP];
4818 if (graph->prev->size > graph->size)
4819 filler = &fillers[LDIAG];
4822 if (graph->prev->size > graph->size) {
4823 append_to_rev_graph(graph, filler->separator);
4824 if (filler->line != ' ')
4825 append_to_rev_graph(graph, filler->line);
4829 /* Prepare the next rev graph */
4831 prepare_rev_graph(struct rev_graph *graph)
4835 /* First, traverse all lines of revisions up to the active one. */
4836 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
4837 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
4840 push_rev_graph(graph->next, graph->rev[graph->pos]);
4843 /* Interleave the new revision parent(s). */
4844 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
4845 push_rev_graph(graph->next, graph->parents->rev[i]);
4847 /* Lastly, put any remaining revisions. */
4848 for (i = graph->pos + 1; i < graph->size; i++)
4849 push_rev_graph(graph->next, graph->rev[i]);
4853 update_rev_graph(struct rev_graph *graph)
4855 /* If this is the finalizing update ... */
4857 prepare_rev_graph(graph);
4859 /* Graph visualization needs a one rev look-ahead,
4860 * so the first update doesn't visualize anything. */
4861 if (!graph->prev->commit)
4864 draw_rev_graph(graph->prev);
4865 done_rev_graph(graph->prev->prev);
4874 main_draw(struct view *view, struct line *line, unsigned int lineno)
4876 struct commit *commit = line->data;
4879 if (!*commit->author)
4883 col += draw_date(view, &commit->time, view->width);
4884 if (col >= view->width)
4891 max_len = view->width - col;
4892 if (max_len > AUTHOR_COLS - 1)
4893 max_len = AUTHOR_COLS - 1;
4894 draw_text(view, LINE_MAIN_AUTHOR, commit->author, max_len, TRUE);
4896 if (col >= view->width)
4898 wmove(view->win, lineno, col);
4901 if (opt_rev_graph && commit->graph_size) {
4902 col += draw_graphic(view, LINE_MAIN_REVGRAPH,
4903 commit->graph, commit->graph_size,
4905 if (col >= view->width)
4909 if (opt_show_refs && commit->refs) {
4913 enum line_type type;
4915 if (commit->refs[i]->head)
4916 type = LINE_MAIN_HEAD;
4917 else if (commit->refs[i]->ltag)
4918 type = LINE_MAIN_LOCAL_TAG;
4919 else if (commit->refs[i]->tag)
4920 type = LINE_MAIN_TAG;
4921 else if (commit->refs[i]->tracked)
4922 type = LINE_MAIN_TRACKED;
4923 else if (commit->refs[i]->remote)
4924 type = LINE_MAIN_REMOTE;
4926 type = LINE_MAIN_REF;
4928 col += draw_text(view, type, "[", view->width - col, TRUE);
4929 col += draw_text(view, type, commit->refs[i]->name, view->width - col, TRUE);
4930 col += draw_text(view, type, "]", view->width - col, TRUE);
4932 col += draw_text(view, LINE_DEFAULT, " ", view->width - col, TRUE);
4933 if (col >= view->width)
4935 } while (commit->refs[i++]->next);
4938 draw_text(view, LINE_DEFAULT, commit->title, view->width - col, TRUE);
4942 /* Reads git log --pretty=raw output and parses it into the commit struct. */
4944 main_read(struct view *view, char *line)
4946 static struct rev_graph *graph = graph_stacks;
4947 enum line_type type;
4948 struct commit *commit;
4951 if (!view->lines && !view->parent)
4952 die("No revisions match the given arguments.");
4953 update_rev_graph(graph);
4957 type = get_line_type(line);
4958 if (type == LINE_COMMIT) {
4959 commit = calloc(1, sizeof(struct commit));
4963 line += STRING_SIZE("commit ");
4965 graph->boundary = 1;
4969 string_copy_rev(commit->id, line);
4970 commit->refs = get_refs(commit->id);
4971 graph->commit = commit;
4972 add_line_data(view, commit, LINE_MAIN_COMMIT);
4974 while ((line = strchr(line, ' '))) {
4976 push_rev_graph(graph->parents, line);
4977 commit->has_parents = TRUE;
4984 commit = view->line[view->lines - 1].data;
4988 if (commit->has_parents)
4990 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
4995 /* Parse author lines where the name may be empty:
4996 * author <email@address.tld> 1138474660 +0100
4998 char *ident = line + STRING_SIZE("author ");
4999 char *nameend = strchr(ident, '<');
5000 char *emailend = strchr(ident, '>');
5002 if (!nameend || !emailend)
5005 update_rev_graph(graph);
5006 graph = graph->next;
5008 *nameend = *emailend = 0;
5009 ident = chomp_string(ident);
5011 ident = chomp_string(nameend + 1);
5016 string_ncopy(commit->author, ident, strlen(ident));
5018 /* Parse epoch and timezone */
5019 if (emailend[1] == ' ') {
5020 char *secs = emailend + 2;
5021 char *zone = strchr(secs, ' ');
5022 time_t time = (time_t) atol(secs);
5024 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5028 tz = ('0' - zone[1]) * 60 * 60 * 10;
5029 tz += ('0' - zone[2]) * 60 * 60;
5030 tz += ('0' - zone[3]) * 60;
5031 tz += ('0' - zone[4]) * 60;
5039 gmtime_r(&time, &commit->time);
5044 /* Fill in the commit title if it has not already been set. */
5045 if (commit->title[0])
5048 /* Require titles to start with a non-space character at the
5049 * offset used by git log. */
5050 if (strncmp(line, " ", 4))
5053 /* Well, if the title starts with a whitespace character,
5054 * try to be forgiving. Otherwise we end up with no title. */
5055 while (isspace(*line))
5059 /* FIXME: More graceful handling of titles; append "..." to
5060 * shortened titles, etc. */
5062 string_ncopy(commit->title, line, strlen(line));
5069 main_request(struct view *view, enum request request, struct line *line)
5071 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5073 if (request == REQ_ENTER)
5074 open_view(view, REQ_VIEW_DIFF, flags);
5082 grep_refs(struct ref **refs, regex_t *regex)
5090 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5092 } while (refs[i++]->next);
5098 main_grep(struct view *view, struct line *line)
5100 struct commit *commit = line->data;
5101 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5102 char buf[DATE_COLS + 1];
5105 for (state = S_TITLE; state < S_END; state++) {
5109 case S_TITLE: text = commit->title; break;
5113 text = commit->author;
5118 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5125 if (grep_refs(commit->refs, view->regex) == TRUE)
5132 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5140 main_select(struct view *view, struct line *line)
5142 struct commit *commit = line->data;
5144 string_copy_rev(view->ref, commit->id);
5145 string_copy_rev(ref_commit, view->ref);
5148 static struct view_ops main_ops = {
5160 * Unicode / UTF-8 handling
5162 * NOTE: Much of the following code for dealing with unicode is derived from
5163 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5164 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5167 /* I've (over)annotated a lot of code snippets because I am not entirely
5168 * confident that the approach taken by this small UTF-8 interface is correct.
5172 unicode_width(unsigned long c)
5175 (c <= 0x115f /* Hangul Jamo */
5178 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5180 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5181 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5182 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5183 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5184 || (c >= 0xffe0 && c <= 0xffe6)
5185 || (c >= 0x20000 && c <= 0x2fffd)
5186 || (c >= 0x30000 && c <= 0x3fffd)))
5190 return opt_tab_size;
5195 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5196 * Illegal bytes are set one. */
5197 static const unsigned char utf8_bytes[256] = {
5198 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,
5199 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,
5200 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,
5201 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,
5202 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,
5203 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,
5204 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,
5205 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,
5208 /* Decode UTF-8 multi-byte representation into a unicode character. */
5209 static inline unsigned long
5210 utf8_to_unicode(const char *string, size_t length)
5212 unsigned long unicode;
5216 unicode = string[0];
5219 unicode = (string[0] & 0x1f) << 6;
5220 unicode += (string[1] & 0x3f);
5223 unicode = (string[0] & 0x0f) << 12;
5224 unicode += ((string[1] & 0x3f) << 6);
5225 unicode += (string[2] & 0x3f);
5228 unicode = (string[0] & 0x0f) << 18;
5229 unicode += ((string[1] & 0x3f) << 12);
5230 unicode += ((string[2] & 0x3f) << 6);
5231 unicode += (string[3] & 0x3f);
5234 unicode = (string[0] & 0x0f) << 24;
5235 unicode += ((string[1] & 0x3f) << 18);
5236 unicode += ((string[2] & 0x3f) << 12);
5237 unicode += ((string[3] & 0x3f) << 6);
5238 unicode += (string[4] & 0x3f);
5241 unicode = (string[0] & 0x01) << 30;
5242 unicode += ((string[1] & 0x3f) << 24);
5243 unicode += ((string[2] & 0x3f) << 18);
5244 unicode += ((string[3] & 0x3f) << 12);
5245 unicode += ((string[4] & 0x3f) << 6);
5246 unicode += (string[5] & 0x3f);
5249 die("Invalid unicode length");
5252 /* Invalid characters could return the special 0xfffd value but NUL
5253 * should be just as good. */
5254 return unicode > 0xffff ? 0 : unicode;
5257 /* Calculates how much of string can be shown within the given maximum width
5258 * and sets trimmed parameter to non-zero value if all of string could not be
5259 * shown. If the reserve flag is TRUE, it will reserve at least one
5260 * trailing character, which can be useful when drawing a delimiter.
5262 * Returns the number of bytes to output from string to satisfy max_width. */
5264 utf8_length(const char *string, size_t max_width, int *trimmed, bool reserve)
5266 const char *start = string;
5267 const char *end = strchr(string, '\0');
5268 unsigned char last_bytes = 0;
5273 while (string < end) {
5274 int c = *(unsigned char *) string;
5275 unsigned char bytes = utf8_bytes[c];
5277 unsigned long unicode;
5279 if (string + bytes > end)
5282 /* Change representation to figure out whether
5283 * it is a single- or double-width character. */
5285 unicode = utf8_to_unicode(string, bytes);
5286 /* FIXME: Graceful handling of invalid unicode character. */
5290 ucwidth = unicode_width(unicode);
5292 if (width > max_width) {
5294 if (reserve && width - ucwidth == max_width) {
5295 string -= last_bytes;
5304 return string - start;
5312 /* Whether or not the curses interface has been initialized. */
5313 static bool cursed = FALSE;
5315 /* The status window is used for polling keystrokes. */
5316 static WINDOW *status_win;
5318 static bool status_empty = TRUE;
5320 /* Update status and title window. */
5322 report(const char *msg, ...)
5324 struct view *view = display[current_view];
5330 char buf[SIZEOF_STR];
5333 va_start(args, msg);
5334 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5335 buf[sizeof(buf) - 1] = 0;
5336 buf[sizeof(buf) - 2] = '.';
5337 buf[sizeof(buf) - 3] = '.';
5338 buf[sizeof(buf) - 4] = '.';
5344 if (!status_empty || *msg) {
5347 va_start(args, msg);
5349 wmove(status_win, 0, 0);
5351 vwprintw(status_win, msg, args);
5352 status_empty = FALSE;
5354 status_empty = TRUE;
5356 wclrtoeol(status_win);
5357 wrefresh(status_win);
5362 update_view_title(view);
5363 update_display_cursor(view);
5366 /* Controls when nodelay should be in effect when polling user input. */
5368 set_nonblocking_input(bool loading)
5370 static unsigned int loading_views;
5372 if ((loading == FALSE && loading_views-- == 1) ||
5373 (loading == TRUE && loading_views++ == 0))
5374 nodelay(status_win, loading);
5382 /* Initialize the curses library */
5383 if (isatty(STDIN_FILENO)) {
5384 cursed = !!initscr();
5386 /* Leave stdin and stdout alone when acting as a pager. */
5387 FILE *io = fopen("/dev/tty", "r+");
5390 die("Failed to open /dev/tty");
5391 cursed = !!newterm(NULL, io, io);
5395 die("Failed to initialize curses");
5397 nonl(); /* Tell curses not to do NL->CR/NL on output */
5398 cbreak(); /* Take input chars one at a time, no wait for \n */
5399 noecho(); /* Don't echo input */
5400 leaveok(stdscr, TRUE);
5405 getmaxyx(stdscr, y, x);
5406 status_win = newwin(1, 0, y - 1, 0);
5408 die("Failed to create status window");
5410 /* Enable keyboard mapping */
5411 keypad(status_win, TRUE);
5412 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5414 TABSIZE = opt_tab_size;
5415 if (opt_line_graphics) {
5416 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5421 read_prompt(const char *prompt)
5423 enum { READING, STOP, CANCEL } status = READING;
5424 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
5427 while (status == READING) {
5433 foreach_view (view, i)
5438 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5439 wclrtoeol(status_win);
5441 /* Refresh, accept single keystroke of input */
5442 key = wgetch(status_win);
5447 status = pos ? STOP : CANCEL;
5465 if (pos >= sizeof(buf)) {
5466 report("Input string too long");
5471 buf[pos++] = (char) key;
5475 /* Clear the status window */
5476 status_empty = FALSE;
5479 if (status == CANCEL)
5488 * Repository references
5491 static struct ref *refs = NULL;
5492 static size_t refs_alloc = 0;
5493 static size_t refs_size = 0;
5495 /* Id <-> ref store */
5496 static struct ref ***id_refs = NULL;
5497 static size_t id_refs_alloc = 0;
5498 static size_t id_refs_size = 0;
5500 static struct ref **
5503 struct ref ***tmp_id_refs;
5504 struct ref **ref_list = NULL;
5505 size_t ref_list_alloc = 0;
5506 size_t ref_list_size = 0;
5509 for (i = 0; i < id_refs_size; i++)
5510 if (!strcmp(id, id_refs[i][0]->id))
5513 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
5518 id_refs = tmp_id_refs;
5520 for (i = 0; i < refs_size; i++) {
5523 if (strcmp(id, refs[i].id))
5526 tmp = realloc_items(ref_list, &ref_list_alloc,
5527 ref_list_size + 1, sizeof(*ref_list));
5535 if (ref_list_size > 0)
5536 ref_list[ref_list_size - 1]->next = 1;
5537 ref_list[ref_list_size] = &refs[i];
5539 /* XXX: The properties of the commit chains ensures that we can
5540 * safely modify the shared ref. The repo references will
5541 * always be similar for the same id. */
5542 ref_list[ref_list_size]->next = 0;
5547 id_refs[id_refs_size++] = ref_list;
5553 read_ref(char *id, size_t idlen, char *name, size_t namelen)
5558 bool remote = FALSE;
5559 bool tracked = FALSE;
5560 bool check_replace = FALSE;
5563 if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) {
5564 if (!strcmp(name + namelen - 3, "^{}")) {
5567 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
5568 check_replace = TRUE;
5574 namelen -= STRING_SIZE("refs/tags/");
5575 name += STRING_SIZE("refs/tags/");
5577 } else if (!strncmp(name, "refs/remotes/", STRING_SIZE("refs/remotes/"))) {
5579 namelen -= STRING_SIZE("refs/remotes/");
5580 name += STRING_SIZE("refs/remotes/");
5581 tracked = !strcmp(opt_remote, name);
5583 } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5584 namelen -= STRING_SIZE("refs/heads/");
5585 name += STRING_SIZE("refs/heads/");
5586 head = !strncmp(opt_head, name, namelen);
5588 } else if (!strcmp(name, "HEAD")) {
5589 opt_no_head = FALSE;
5593 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
5594 /* it's an annotated tag, replace the previous sha1 with the
5595 * resolved commit id; relies on the fact git-ls-remote lists
5596 * the commit id of an annotated tag right beofre the commit id
5598 refs[refs_size - 1].ltag = ltag;
5599 string_copy_rev(refs[refs_size - 1].id, id);
5603 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
5607 ref = &refs[refs_size++];
5608 ref->name = malloc(namelen + 1);
5612 strncpy(ref->name, name, namelen);
5613 ref->name[namelen] = 0;
5617 ref->remote = remote;
5618 ref->tracked = tracked;
5619 string_copy_rev(ref->id, id);
5627 const char *cmd_env = getenv("TIG_LS_REMOTE");
5628 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
5630 return read_properties(popen(cmd, "r"), "\t", read_ref);
5634 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
5636 if (!strcmp(name, "i18n.commitencoding"))
5637 string_ncopy(opt_encoding, value, valuelen);
5639 if (!strcmp(name, "core.editor"))
5640 string_ncopy(opt_editor, value, valuelen);
5642 /* branch.<head>.remote */
5644 !strncmp(name, "branch.", 7) &&
5645 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5646 !strcmp(name + 7 + strlen(opt_head), ".remote"))
5647 string_ncopy(opt_remote, value, valuelen);
5649 if (*opt_head && *opt_remote &&
5650 !strncmp(name, "branch.", 7) &&
5651 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5652 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
5653 size_t from = strlen(opt_remote);
5655 if (!strncmp(value, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5656 value += STRING_SIZE("refs/heads/");
5657 valuelen -= STRING_SIZE("refs/heads/");
5660 if (!string_format_from(opt_remote, &from, "/%s", value))
5668 load_git_config(void)
5670 return read_properties(popen(GIT_CONFIG " --list", "r"),
5671 "=", read_repo_config_option);
5675 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
5677 if (!opt_git_dir[0]) {
5678 string_ncopy(opt_git_dir, name, namelen);
5680 } else if (opt_is_inside_work_tree == -1) {
5681 /* This can be 3 different values depending on the
5682 * version of git being used. If git-rev-parse does not
5683 * understand --is-inside-work-tree it will simply echo
5684 * the option else either "true" or "false" is printed.
5685 * Default to true for the unknown case. */
5686 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
5688 } else if (opt_cdup[0] == ' ') {
5689 string_ncopy(opt_cdup, name, namelen);
5691 if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5692 namelen -= STRING_SIZE("refs/heads/");
5693 name += STRING_SIZE("refs/heads/");
5694 string_ncopy(opt_head, name, namelen);
5702 load_repo_info(void)
5705 FILE *pipe = popen("(git rev-parse --git-dir --is-inside-work-tree "
5706 " --show-cdup; git symbolic-ref HEAD) 2>/dev/null", "r");
5708 /* XXX: The line outputted by "--show-cdup" can be empty so
5709 * initialize it to something invalid to make it possible to
5710 * detect whether it has been set or not. */
5713 result = read_properties(pipe, "=", read_repo_info);
5714 if (opt_cdup[0] == ' ')
5721 read_properties(FILE *pipe, const char *separators,
5722 int (*read_property)(char *, size_t, char *, size_t))
5724 char buffer[BUFSIZ];
5731 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
5736 name = chomp_string(name);
5737 namelen = strcspn(name, separators);
5739 if (name[namelen]) {
5741 value = chomp_string(name + namelen + 1);
5742 valuelen = strlen(value);
5749 state = read_property(name, namelen, value, valuelen);
5752 if (state != ERR && ferror(pipe))
5765 static void __NORETURN
5768 /* XXX: Restore tty modes and let the OS cleanup the rest! */
5774 static void __NORETURN
5775 die(const char *err, ...)
5781 va_start(args, err);
5782 fputs("tig: ", stderr);
5783 vfprintf(stderr, err, args);
5784 fputs("\n", stderr);
5791 warn(const char *msg, ...)
5795 va_start(args, msg);
5796 fputs("tig warning: ", stderr);
5797 vfprintf(stderr, msg, args);
5798 fputs("\n", stderr);
5803 main(int argc, char *argv[])
5806 enum request request;
5809 signal(SIGINT, quit);
5811 if (setlocale(LC_ALL, "")) {
5812 char *codeset = nl_langinfo(CODESET);
5814 string_ncopy(opt_codeset, codeset, strlen(codeset));
5817 if (load_repo_info() == ERR)
5818 die("Failed to load repo info.");
5820 if (load_options() == ERR)
5821 die("Failed to load user config.");
5823 if (load_git_config() == ERR)
5824 die("Failed to load repo config.");
5826 if (!parse_options(argc, argv))
5829 /* Require a git repository unless when running in pager mode. */
5830 if (!opt_git_dir[0] && opt_request != REQ_VIEW_PAGER)
5831 die("Not a git repository");
5833 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
5836 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
5837 opt_iconv = iconv_open(opt_codeset, opt_encoding);
5838 if (opt_iconv == ICONV_NONE)
5839 die("Failed to initialize character set conversion");
5842 if (*opt_git_dir && load_refs() == ERR)
5843 die("Failed to load refs.");
5845 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
5846 view->cmd_env = getenv(view->cmd_env);
5848 request = opt_request;
5852 while (view_driver(display[current_view], request)) {
5856 foreach_view (view, i)
5859 /* Refresh, accept single keystroke of input */
5860 key = wgetch(status_win);
5862 /* wgetch() with nodelay() enabled returns ERR when there's no
5869 request = get_keybinding(display[current_view]->keymap, key);
5871 /* Some low-level request handling. This keeps access to
5872 * status_win restricted. */
5876 char *cmd = read_prompt(":");
5878 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
5879 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
5880 opt_request = REQ_VIEW_DIFF;
5882 opt_request = REQ_VIEW_PAGER;
5891 case REQ_SEARCH_BACK:
5893 const char *prompt = request == REQ_SEARCH
5895 char *search = read_prompt(prompt);
5898 string_ncopy(opt_search, search, strlen(search));
5903 case REQ_SCREEN_RESIZE:
5907 getmaxyx(stdscr, height, width);
5909 /* Resize the status view and let the view driver take
5910 * care of resizing the displayed views. */
5911 wresize(status_win, 1, width);
5912 mvwin(status_win, height - 1, 0);
5913 wrefresh(status_win);