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 '^'
80 #define REVGRAPH_LINE '|'
82 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
84 /* This color name can be used to refer to the default term colors. */
85 #define COLOR_DEFAULT (-1)
87 #define ICONV_NONE ((iconv_t) -1)
89 #define ICONV_CONST /* nothing */
92 /* The format and size of the date column in the main view. */
93 #define DATE_FORMAT "%Y-%m-%d %H:%M"
94 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
96 #define AUTHOR_COLS 20
99 /* The default interval between line numbers. */
100 #define NUMBER_INTERVAL 5
104 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
106 #define NULL_ID "0000000000000000000000000000000000000000"
109 #define GIT_CONFIG "git config"
112 #define TIG_LS_REMOTE \
113 "git ls-remote $(git rev-parse --git-dir) 2>/dev/null"
115 #define TIG_DIFF_CMD \
116 "git show --pretty=fuller --no-color --root --patch-with-stat --find-copies-harder -C %s 2>/dev/null"
118 #define TIG_LOG_CMD \
119 "git log --no-color --cc --stat -n100 %s 2>/dev/null"
121 #define TIG_MAIN_CMD \
122 "git log --no-color --topo-order --parents --boundary --pretty=raw %s 2>/dev/null"
124 #define TIG_TREE_CMD \
127 #define TIG_BLOB_CMD \
128 "git cat-file blob %s"
130 /* XXX: Needs to be defined to the empty string. */
131 #define TIG_HELP_CMD ""
132 #define TIG_PAGER_CMD ""
133 #define TIG_STATUS_CMD ""
134 #define TIG_STAGE_CMD ""
135 #define TIG_BLAME_CMD ""
137 /* Some ascii-shorthands fitted into the ncurses namespace. */
139 #define KEY_RETURN '\r'
144 char *name; /* Ref name; tag or head names are shortened. */
145 char id[SIZEOF_REV]; /* Commit SHA1 ID */
146 unsigned int head:1; /* Is it the current HEAD? */
147 unsigned int tag:1; /* Is it a tag? */
148 unsigned int ltag:1; /* If so, is the tag local? */
149 unsigned int remote:1; /* Is it a remote ref? */
150 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
151 unsigned int next:1; /* For ref lists: are there more refs? */
154 static struct ref **get_refs(char *id);
163 set_from_int_map(struct int_map *map, size_t map_size,
164 int *value, const char *name, int namelen)
169 for (i = 0; i < map_size; i++)
170 if (namelen == map[i].namelen &&
171 !strncasecmp(name, map[i].name, namelen)) {
172 *value = map[i].value;
185 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
187 if (srclen > dstlen - 1)
190 strncpy(dst, src, srclen);
194 /* Shorthands for safely copying into a fixed buffer. */
196 #define string_copy(dst, src) \
197 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
199 #define string_ncopy(dst, src, srclen) \
200 string_ncopy_do(dst, sizeof(dst), src, srclen)
202 #define string_copy_rev(dst, src) \
203 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
205 #define string_add(dst, from, src) \
206 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
209 chomp_string(char *name)
213 while (isspace(*name))
216 namelen = strlen(name) - 1;
217 while (namelen > 0 && isspace(name[namelen]))
224 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
227 size_t pos = bufpos ? *bufpos : 0;
230 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
236 return pos >= bufsize ? FALSE : TRUE;
239 #define string_format(buf, fmt, args...) \
240 string_nformat(buf, sizeof(buf), NULL, fmt, args)
242 #define string_format_from(buf, from, fmt, args...) \
243 string_nformat(buf, sizeof(buf), from, fmt, args)
246 string_enum_compare(const char *str1, const char *str2, int len)
250 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
252 /* Diff-Header == DIFF_HEADER */
253 for (i = 0; i < len; i++) {
254 if (toupper(str1[i]) == toupper(str2[i]))
257 if (string_enum_sep(str1[i]) &&
258 string_enum_sep(str2[i]))
261 return str1[i] - str2[i];
269 * NOTE: The following is a slightly modified copy of the git project's shell
270 * quoting routines found in the quote.c file.
272 * Help to copy the thing properly quoted for the shell safety. any single
273 * quote is replaced with '\'', any exclamation point is replaced with '\!',
274 * and the whole thing is enclosed in a
277 * original sq_quote result
278 * name ==> name ==> 'name'
279 * a b ==> a b ==> 'a b'
280 * a'b ==> a'\''b ==> 'a'\''b'
281 * a!b ==> a'\!'b ==> 'a'\!'b'
285 sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src)
289 #define BUFPUT(x) do { if (bufsize < SIZEOF_STR) buf[bufsize++] = (x); } while (0)
292 while ((c = *src++)) {
293 if (c == '\'' || c == '!') {
304 if (bufsize < SIZEOF_STR)
316 /* XXX: Keep the view request first and in sync with views[]. */ \
317 REQ_GROUP("View switching") \
318 REQ_(VIEW_MAIN, "Show main view"), \
319 REQ_(VIEW_DIFF, "Show diff view"), \
320 REQ_(VIEW_LOG, "Show log view"), \
321 REQ_(VIEW_TREE, "Show tree view"), \
322 REQ_(VIEW_BLOB, "Show blob view"), \
323 REQ_(VIEW_BLAME, "Show blame view"), \
324 REQ_(VIEW_HELP, "Show help page"), \
325 REQ_(VIEW_PAGER, "Show pager view"), \
326 REQ_(VIEW_STATUS, "Show status view"), \
327 REQ_(VIEW_STAGE, "Show stage view"), \
329 REQ_GROUP("View manipulation") \
330 REQ_(ENTER, "Enter current line and scroll"), \
331 REQ_(NEXT, "Move to next"), \
332 REQ_(PREVIOUS, "Move to previous"), \
333 REQ_(VIEW_NEXT, "Move focus to next view"), \
334 REQ_(REFRESH, "Reload and refresh"), \
335 REQ_(MAXIMIZE, "Maximize the current view"), \
336 REQ_(VIEW_CLOSE, "Close the current view"), \
337 REQ_(QUIT, "Close all views and quit"), \
339 REQ_GROUP("Cursor navigation") \
340 REQ_(MOVE_UP, "Move cursor one line up"), \
341 REQ_(MOVE_DOWN, "Move cursor one line down"), \
342 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
343 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
344 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
345 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
347 REQ_GROUP("Scrolling") \
348 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
349 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
350 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
351 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
353 REQ_GROUP("Searching") \
354 REQ_(SEARCH, "Search the view"), \
355 REQ_(SEARCH_BACK, "Search backwards in the view"), \
356 REQ_(FIND_NEXT, "Find next search match"), \
357 REQ_(FIND_PREV, "Find previous search match"), \
360 REQ_(PROMPT, "Bring up the prompt"), \
361 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
362 REQ_(SCREEN_RESIZE, "Resize the screen"), \
363 REQ_(SHOW_VERSION, "Show version information"), \
364 REQ_(STOP_LOADING, "Stop all loading views"), \
365 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
366 REQ_(TOGGLE_DATE, "Toggle date display"), \
367 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
368 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
369 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
370 REQ_(STATUS_UPDATE, "Update file status"), \
371 REQ_(STATUS_MERGE, "Merge file using external tool"), \
372 REQ_(TREE_PARENT, "Switch to parent directory in tree view"), \
373 REQ_(EDIT, "Open in editor"), \
374 REQ_(NONE, "Do nothing")
377 /* User action requests. */
379 #define REQ_GROUP(help)
380 #define REQ_(req, help) REQ_##req
382 /* Offset all requests to avoid conflicts with ncurses getch values. */
383 REQ_OFFSET = KEY_MAX + 1,
390 struct request_info {
391 enum request request;
397 static struct request_info req_info[] = {
398 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
399 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
406 get_request(const char *name)
408 int namelen = strlen(name);
411 for (i = 0; i < ARRAY_SIZE(req_info); i++)
412 if (req_info[i].namelen == namelen &&
413 !string_enum_compare(req_info[i].name, name, namelen))
414 return req_info[i].request;
424 static const char usage[] =
425 "tig " TIG_VERSION " (" __DATE__ ")\n"
427 "Usage: tig [options] [revs] [--] [paths]\n"
428 " or: tig show [options] [revs] [--] [paths]\n"
429 " or: tig blame [rev] path\n"
431 " or: tig < [git command output]\n"
434 " -v, --version Show version and exit\n"
435 " -h, --help Show help message and exit";
437 /* Option and state variables. */
438 static bool opt_date = TRUE;
439 static bool opt_author = TRUE;
440 static bool opt_line_number = FALSE;
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 = TABSIZE;
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(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
590 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
591 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
592 LINE(MAIN_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
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_DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
611 LINE(BLAME_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
612 LINE(BLAME_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
613 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
616 #define LINE(type, line, fg, bg, attr) \
623 const char *name; /* Option name. */
624 int namelen; /* Size of option name. */
625 const char *line; /* The start of line to match. */
626 int linelen; /* Size of string to match. */
627 int fg, bg, attr; /* Color and text attributes for the lines. */
630 static struct line_info line_info[] = {
631 #define LINE(type, line, fg, bg, attr) \
632 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
637 static enum line_type
638 get_line_type(char *line)
640 int linelen = strlen(line);
643 for (type = 0; type < ARRAY_SIZE(line_info); type++)
644 /* Case insensitive search matches Signed-off-by lines better. */
645 if (linelen >= line_info[type].linelen &&
646 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
653 get_line_attr(enum line_type type)
655 assert(type < ARRAY_SIZE(line_info));
656 return COLOR_PAIR(type) | line_info[type].attr;
659 static struct line_info *
660 get_line_info(char *name)
662 size_t namelen = strlen(name);
665 for (type = 0; type < ARRAY_SIZE(line_info); type++)
666 if (namelen == line_info[type].namelen &&
667 !string_enum_compare(line_info[type].name, name, namelen))
668 return &line_info[type];
676 int default_bg = line_info[LINE_DEFAULT].bg;
677 int default_fg = line_info[LINE_DEFAULT].fg;
682 if (assume_default_colors(default_fg, default_bg) == ERR) {
683 default_bg = COLOR_BLACK;
684 default_fg = COLOR_WHITE;
687 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
688 struct line_info *info = &line_info[type];
689 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
690 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
692 init_pair(type, fg, bg);
700 unsigned int selected:1;
701 unsigned int dirty:1;
703 void *data; /* User data */
713 enum request request;
714 struct keybinding *next;
717 static struct keybinding default_keybindings[] = {
719 { 'm', REQ_VIEW_MAIN },
720 { 'd', REQ_VIEW_DIFF },
721 { 'l', REQ_VIEW_LOG },
722 { 't', REQ_VIEW_TREE },
723 { 'f', REQ_VIEW_BLOB },
724 { 'B', REQ_VIEW_BLAME },
725 { 'p', REQ_VIEW_PAGER },
726 { 'h', REQ_VIEW_HELP },
727 { 'S', REQ_VIEW_STATUS },
728 { 'c', REQ_VIEW_STAGE },
730 /* View manipulation */
731 { 'q', REQ_VIEW_CLOSE },
732 { KEY_TAB, REQ_VIEW_NEXT },
733 { KEY_RETURN, REQ_ENTER },
734 { KEY_UP, REQ_PREVIOUS },
735 { KEY_DOWN, REQ_NEXT },
736 { 'R', REQ_REFRESH },
737 { 'M', REQ_MAXIMIZE },
739 /* Cursor navigation */
740 { 'k', REQ_MOVE_UP },
741 { 'j', REQ_MOVE_DOWN },
742 { KEY_HOME, REQ_MOVE_FIRST_LINE },
743 { KEY_END, REQ_MOVE_LAST_LINE },
744 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
745 { ' ', REQ_MOVE_PAGE_DOWN },
746 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
747 { 'b', REQ_MOVE_PAGE_UP },
748 { '-', REQ_MOVE_PAGE_UP },
751 { KEY_IC, REQ_SCROLL_LINE_UP },
752 { KEY_DC, REQ_SCROLL_LINE_DOWN },
753 { 'w', REQ_SCROLL_PAGE_UP },
754 { 's', REQ_SCROLL_PAGE_DOWN },
758 { '?', REQ_SEARCH_BACK },
759 { 'n', REQ_FIND_NEXT },
760 { 'N', REQ_FIND_PREV },
764 { 'z', REQ_STOP_LOADING },
765 { 'v', REQ_SHOW_VERSION },
766 { 'r', REQ_SCREEN_REDRAW },
767 { '.', REQ_TOGGLE_LINENO },
768 { 'D', REQ_TOGGLE_DATE },
769 { 'A', REQ_TOGGLE_AUTHOR },
770 { 'g', REQ_TOGGLE_REV_GRAPH },
771 { 'F', REQ_TOGGLE_REFS },
773 { 'u', REQ_STATUS_UPDATE },
774 { 'M', REQ_STATUS_MERGE },
775 { ',', REQ_TREE_PARENT },
778 /* Using the ncurses SIGWINCH handler. */
779 { KEY_RESIZE, REQ_SCREEN_RESIZE },
782 #define KEYMAP_INFO \
796 #define KEYMAP_(name) KEYMAP_##name
801 static struct int_map keymap_table[] = {
802 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
807 #define set_keymap(map, name) \
808 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
810 static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)];
813 add_keybinding(enum keymap keymap, enum request request, int key)
815 struct keybinding *keybinding;
817 keybinding = calloc(1, sizeof(*keybinding));
819 die("Failed to allocate keybinding");
821 keybinding->alias = key;
822 keybinding->request = request;
823 keybinding->next = keybindings[keymap];
824 keybindings[keymap] = keybinding;
827 /* Looks for a key binding first in the given map, then in the generic map, and
828 * lastly in the default keybindings. */
830 get_keybinding(enum keymap keymap, int key)
832 struct keybinding *kbd;
835 for (kbd = keybindings[keymap]; kbd; kbd = kbd->next)
836 if (kbd->alias == key)
839 for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next)
840 if (kbd->alias == key)
843 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
844 if (default_keybindings[i].alias == key)
845 return default_keybindings[i].request;
847 return (enum request) key;
856 static struct key key_table[] = {
857 { "Enter", KEY_RETURN },
859 { "Backspace", KEY_BACKSPACE },
861 { "Escape", KEY_ESC },
862 { "Left", KEY_LEFT },
863 { "Right", KEY_RIGHT },
865 { "Down", KEY_DOWN },
866 { "Insert", KEY_IC },
867 { "Delete", KEY_DC },
869 { "Home", KEY_HOME },
871 { "PageUp", KEY_PPAGE },
872 { "PageDown", KEY_NPAGE },
882 { "F10", KEY_F(10) },
883 { "F11", KEY_F(11) },
884 { "F12", KEY_F(12) },
888 get_key_value(const char *name)
892 for (i = 0; i < ARRAY_SIZE(key_table); i++)
893 if (!strcasecmp(key_table[i].name, name))
894 return key_table[i].value;
896 if (strlen(name) == 1 && isprint(*name))
903 get_key_name(int key_value)
905 static char key_char[] = "'X'";
909 for (key = 0; key < ARRAY_SIZE(key_table); key++)
910 if (key_table[key].value == key_value)
911 seq = key_table[key].name;
915 isprint(key_value)) {
916 key_char[1] = (char) key_value;
920 return seq ? seq : "'?'";
924 get_key(enum request request)
926 static char buf[BUFSIZ];
933 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
934 struct keybinding *keybinding = &default_keybindings[i];
936 if (keybinding->request != request)
939 if (!string_format_from(buf, &pos, "%s%s", sep,
940 get_key_name(keybinding->alias)))
941 return "Too many keybindings!";
951 char cmd[SIZEOF_STR];
954 static struct run_request *run_request;
955 static size_t run_requests;
958 add_run_request(enum keymap keymap, int key, int argc, char **argv)
960 struct run_request *tmp;
961 struct run_request req = { keymap, key };
964 for (bufpos = 0; argc > 0; argc--, argv++)
965 if (!string_format_from(req.cmd, &bufpos, "%s ", *argv))
968 req.cmd[bufpos - 1] = 0;
970 tmp = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
975 run_request[run_requests++] = req;
977 return REQ_NONE + run_requests;
980 static struct run_request *
981 get_run_request(enum request request)
983 if (request <= REQ_NONE)
985 return &run_request[request - REQ_NONE - 1];
989 add_builtin_run_requests(void)
996 { KEYMAP_MAIN, 'C', { "git cherry-pick %(commit)" } },
997 { KEYMAP_GENERIC, 'G', { "git gc" } },
1001 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1004 req = add_run_request(reqs[i].keymap, reqs[i].key, 1, reqs[i].argv);
1005 if (req != REQ_NONE)
1006 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1011 * User config file handling.
1014 static struct int_map color_map[] = {
1015 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1027 #define set_color(color, name) \
1028 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1030 static struct int_map attr_map[] = {
1031 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1038 ATTR_MAP(UNDERLINE),
1041 #define set_attribute(attr, name) \
1042 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1044 static int config_lineno;
1045 static bool config_errors;
1046 static char *config_msg;
1048 /* Wants: object fgcolor bgcolor [attr] */
1050 option_color_command(int argc, char *argv[])
1052 struct line_info *info;
1054 if (argc != 3 && argc != 4) {
1055 config_msg = "Wrong number of arguments given to color command";
1059 info = get_line_info(argv[0]);
1061 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1062 info = get_line_info("delimiter");
1065 config_msg = "Unknown color name";
1070 if (set_color(&info->fg, argv[1]) == ERR ||
1071 set_color(&info->bg, argv[2]) == ERR) {
1072 config_msg = "Unknown color";
1076 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1077 config_msg = "Unknown attribute";
1084 static bool parse_bool(const char *s)
1086 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1087 !strcmp(s, "yes")) ? TRUE : FALSE;
1090 /* Wants: name = value */
1092 option_set_command(int argc, char *argv[])
1095 config_msg = "Wrong number of arguments given to set command";
1099 if (strcmp(argv[1], "=")) {
1100 config_msg = "No value assigned";
1104 if (!strcmp(argv[0], "show-author")) {
1105 opt_author = parse_bool(argv[2]);
1109 if (!strcmp(argv[0], "show-date")) {
1110 opt_date = parse_bool(argv[2]);
1114 if (!strcmp(argv[0], "show-rev-graph")) {
1115 opt_rev_graph = parse_bool(argv[2]);
1119 if (!strcmp(argv[0], "show-refs")) {
1120 opt_show_refs = parse_bool(argv[2]);
1124 if (!strcmp(argv[0], "show-line-numbers")) {
1125 opt_line_number = parse_bool(argv[2]);
1129 if (!strcmp(argv[0], "line-number-interval")) {
1130 opt_num_interval = atoi(argv[2]);
1134 if (!strcmp(argv[0], "tab-size")) {
1135 opt_tab_size = atoi(argv[2]);
1139 if (!strcmp(argv[0], "commit-encoding")) {
1140 char *arg = argv[2];
1141 int delimiter = *arg;
1144 switch (delimiter) {
1147 for (arg++, i = 0; arg[i]; i++)
1148 if (arg[i] == delimiter) {
1153 string_ncopy(opt_encoding, arg, strlen(arg));
1158 config_msg = "Unknown variable name";
1162 /* Wants: mode request key */
1164 option_bind_command(int argc, char *argv[])
1166 enum request request;
1171 config_msg = "Wrong number of arguments given to bind command";
1175 if (set_keymap(&keymap, argv[0]) == ERR) {
1176 config_msg = "Unknown key map";
1180 key = get_key_value(argv[1]);
1182 config_msg = "Unknown key";
1186 request = get_request(argv[2]);
1187 if (request == REQ_NONE) {
1188 const char *obsolete[] = { "cherry-pick" };
1189 size_t namelen = strlen(argv[2]);
1192 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1193 if (namelen == strlen(obsolete[i]) &&
1194 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1195 config_msg = "Obsolete request name";
1200 if (request == REQ_NONE && *argv[2]++ == '!')
1201 request = add_run_request(keymap, key, argc - 2, argv + 2);
1202 if (request == REQ_NONE) {
1203 config_msg = "Unknown request name";
1207 add_keybinding(keymap, request, key);
1213 set_option(char *opt, char *value)
1220 while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) {
1221 argv[argc++] = value;
1224 /* Nothing more to tokenize or last available token. */
1225 if (!*value || argc >= ARRAY_SIZE(argv))
1229 while (isspace(*value))
1233 if (!strcmp(opt, "color"))
1234 return option_color_command(argc, argv);
1236 if (!strcmp(opt, "set"))
1237 return option_set_command(argc, argv);
1239 if (!strcmp(opt, "bind"))
1240 return option_bind_command(argc, argv);
1242 config_msg = "Unknown option command";
1247 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1252 config_msg = "Internal error";
1254 /* Check for comment markers, since read_properties() will
1255 * only ensure opt and value are split at first " \t". */
1256 optlen = strcspn(opt, "#");
1260 if (opt[optlen] != 0) {
1261 config_msg = "No option value";
1265 /* Look for comment endings in the value. */
1266 size_t len = strcspn(value, "#");
1268 if (len < valuelen) {
1270 value[valuelen] = 0;
1273 status = set_option(opt, value);
1276 if (status == ERR) {
1277 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1278 config_lineno, (int) optlen, opt, config_msg);
1279 config_errors = TRUE;
1282 /* Always keep going if errors are encountered. */
1287 load_option_file(const char *path)
1291 /* It's ok that the file doesn't exist. */
1292 file = fopen(path, "r");
1297 config_errors = FALSE;
1299 if (read_properties(file, " \t", read_option) == ERR ||
1300 config_errors == TRUE)
1301 fprintf(stderr, "Errors while loading %s.\n", path);
1307 char *home = getenv("HOME");
1308 char *tigrc_user = getenv("TIGRC_USER");
1309 char *tigrc_system = getenv("TIGRC_SYSTEM");
1310 char buf[SIZEOF_STR];
1312 add_builtin_run_requests();
1314 if (!tigrc_system) {
1315 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1319 load_option_file(tigrc_system);
1322 if (!home || !string_format(buf, "%s/.tigrc", home))
1326 load_option_file(tigrc_user);
1339 /* The display array of active views and the index of the current view. */
1340 static struct view *display[2];
1341 static unsigned int current_view;
1343 /* Reading from the prompt? */
1344 static bool input_mode = FALSE;
1346 #define foreach_displayed_view(view, i) \
1347 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1349 #define displayed_views() (display[1] != NULL ? 2 : 1)
1351 /* Current head and commit ID */
1352 static char ref_blob[SIZEOF_REF] = "";
1353 static char ref_commit[SIZEOF_REF] = "HEAD";
1354 static char ref_head[SIZEOF_REF] = "HEAD";
1357 const char *name; /* View name */
1358 const char *cmd_fmt; /* Default command line format */
1359 const char *cmd_env; /* Command line set via environment */
1360 const char *id; /* Points to either of ref_{head,commit,blob} */
1362 struct view_ops *ops; /* View operations */
1364 enum keymap keymap; /* What keymap does this view have */
1365 bool git_dir; /* Whether the view requires a git directory. */
1367 char cmd[SIZEOF_STR]; /* Command buffer */
1368 char ref[SIZEOF_REF]; /* Hovered commit reference */
1369 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1371 int height, width; /* The width and height of the main window */
1372 WINDOW *win; /* The main window */
1373 WINDOW *title; /* The title window living below the main window */
1376 unsigned long offset; /* Offset of the window top */
1377 unsigned long lineno; /* Current line number */
1380 char grep[SIZEOF_STR]; /* Search string */
1381 regex_t *regex; /* Pre-compiled regex */
1383 /* If non-NULL, points to the view that opened this view. If this view
1384 * is closed tig will switch back to the parent view. */
1385 struct view *parent;
1388 size_t lines; /* Total number of lines */
1389 struct line *line; /* Line index */
1390 size_t line_alloc; /* Total number of allocated lines */
1391 size_t line_size; /* Total number of used lines */
1392 unsigned int digits; /* Number of digits in the lines member. */
1400 /* What type of content being displayed. Used in the title bar. */
1402 /* Open and reads in all view content. */
1403 bool (*open)(struct view *view);
1404 /* Read one line; updates view->line. */
1405 bool (*read)(struct view *view, char *data);
1406 /* Draw one line; @lineno must be < view->height. */
1407 bool (*draw)(struct view *view, struct line *line, unsigned int lineno, bool selected);
1408 /* Depending on view handle a special requests. */
1409 enum request (*request)(struct view *view, enum request request, struct line *line);
1410 /* Search for regex in a line. */
1411 bool (*grep)(struct view *view, struct line *line);
1413 void (*select)(struct view *view, struct line *line);
1416 static struct view_ops pager_ops;
1417 static struct view_ops main_ops;
1418 static struct view_ops tree_ops;
1419 static struct view_ops blob_ops;
1420 static struct view_ops blame_ops;
1421 static struct view_ops help_ops;
1422 static struct view_ops status_ops;
1423 static struct view_ops stage_ops;
1425 #define VIEW_STR(name, cmd, env, ref, ops, map, git) \
1426 { name, cmd, #env, ref, ops, map, git }
1428 #define VIEW_(id, name, ops, git, ref) \
1429 VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1432 static struct view views[] = {
1433 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1434 VIEW_(DIFF, "diff", &pager_ops, TRUE, ref_commit),
1435 VIEW_(LOG, "log", &pager_ops, TRUE, ref_head),
1436 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1437 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1438 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1439 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1440 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1441 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1442 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1445 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1446 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1448 #define foreach_view(view, i) \
1449 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1451 #define view_is_displayed(view) \
1452 (view == display[0] || view == display[1])
1455 draw_text(struct view *view, const char *string, int max_len,
1456 bool use_tilde, bool selected)
1459 int trimmed = FALSE;
1465 len = utf8_length(string, max_len, &trimmed, use_tilde);
1467 len = strlen(string);
1468 if (len > max_len) {
1477 waddnstr(view->win, string, len);
1478 if (trimmed && use_tilde) {
1480 wattrset(view->win, get_line_attr(LINE_DELIMITER));
1481 waddch(view->win, '~');
1489 draw_lineno(struct view *view, unsigned int lineno, int max, bool selected)
1491 static char fmt[] = "%1ld";
1492 char number[10] = " ";
1493 int digits3 = view->digits < 3 ? 3 : view->digits;
1494 int max_number = MIN(digits3, STRING_SIZE(number));
1495 bool showtrimmed = FALSE;
1498 lineno += view->offset + 1;
1499 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1500 if (view->digits <= 9)
1501 fmt[1] = '0' + digits3;
1503 if (!string_format(number, fmt, lineno))
1508 if (max < max_number)
1512 wattrset(view->win, get_line_attr(LINE_LINE_NUMBER));
1513 col = draw_text(view, number, max_number, showtrimmed, selected);
1516 wattrset(view->win, A_NORMAL);
1517 waddch(view->win, ACS_VLINE);
1521 waddch(view->win, ' ');
1529 draw_view_line(struct view *view, unsigned int lineno)
1532 bool selected = (view->offset + lineno == view->lineno);
1535 assert(view_is_displayed(view));
1537 if (view->offset + lineno >= view->lines)
1540 line = &view->line[view->offset + lineno];
1543 line->selected = TRUE;
1544 view->ops->select(view, line);
1545 } else if (line->selected) {
1546 line->selected = FALSE;
1547 wmove(view->win, lineno, 0);
1548 wclrtoeol(view->win);
1551 scrollok(view->win, FALSE);
1552 draw_ok = view->ops->draw(view, line, lineno, selected);
1553 scrollok(view->win, TRUE);
1559 redraw_view_dirty(struct view *view)
1564 for (lineno = 0; lineno < view->height; lineno++) {
1565 struct line *line = &view->line[view->offset + lineno];
1571 if (!draw_view_line(view, lineno))
1577 redrawwin(view->win);
1579 wnoutrefresh(view->win);
1581 wrefresh(view->win);
1585 redraw_view_from(struct view *view, int lineno)
1587 assert(0 <= lineno && lineno < view->height);
1589 for (; lineno < view->height; lineno++) {
1590 if (!draw_view_line(view, lineno))
1594 redrawwin(view->win);
1596 wnoutrefresh(view->win);
1598 wrefresh(view->win);
1602 redraw_view(struct view *view)
1605 redraw_view_from(view, 0);
1610 update_view_title(struct view *view)
1612 char buf[SIZEOF_STR];
1613 char state[SIZEOF_STR];
1614 size_t bufpos = 0, statelen = 0;
1616 assert(view_is_displayed(view));
1618 if (view != VIEW(REQ_VIEW_STATUS) && (view->lines || view->pipe)) {
1619 unsigned int view_lines = view->offset + view->height;
1620 unsigned int lines = view->lines
1621 ? MIN(view_lines, view->lines) * 100 / view->lines
1624 string_format_from(state, &statelen, "- %s %d of %d (%d%%)",
1631 time_t secs = time(NULL) - view->start_time;
1633 /* Three git seconds are a long time ... */
1635 string_format_from(state, &statelen, " %lds", secs);
1639 string_format_from(buf, &bufpos, "[%s]", view->name);
1640 if (*view->ref && bufpos < view->width) {
1641 size_t refsize = strlen(view->ref);
1642 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
1644 if (minsize < view->width)
1645 refsize = view->width - minsize + 7;
1646 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
1649 if (statelen && bufpos < view->width) {
1650 string_format_from(buf, &bufpos, " %s", state);
1653 if (view == display[current_view])
1654 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
1656 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
1658 mvwaddnstr(view->title, 0, 0, buf, bufpos);
1659 wclrtoeol(view->title);
1660 wmove(view->title, 0, view->width - 1);
1663 wnoutrefresh(view->title);
1665 wrefresh(view->title);
1669 resize_display(void)
1672 struct view *base = display[0];
1673 struct view *view = display[1] ? display[1] : display[0];
1675 /* Setup window dimensions */
1677 getmaxyx(stdscr, base->height, base->width);
1679 /* Make room for the status window. */
1683 /* Horizontal split. */
1684 view->width = base->width;
1685 view->height = SCALE_SPLIT_VIEW(base->height);
1686 base->height -= view->height;
1688 /* Make room for the title bar. */
1692 /* Make room for the title bar. */
1697 foreach_displayed_view (view, i) {
1699 view->win = newwin(view->height, 0, offset, 0);
1701 die("Failed to create %s view", view->name);
1703 scrollok(view->win, TRUE);
1705 view->title = newwin(1, 0, offset + view->height, 0);
1707 die("Failed to create title window");
1710 wresize(view->win, view->height, view->width);
1711 mvwin(view->win, offset, 0);
1712 mvwin(view->title, offset + view->height, 0);
1715 offset += view->height + 1;
1720 redraw_display(void)
1725 foreach_displayed_view (view, i) {
1727 update_view_title(view);
1732 update_display_cursor(struct view *view)
1734 /* Move the cursor to the right-most column of the cursor line.
1736 * XXX: This could turn out to be a bit expensive, but it ensures that
1737 * the cursor does not jump around. */
1739 wmove(view->win, view->lineno - view->offset, view->width - 1);
1740 wrefresh(view->win);
1748 /* Scrolling backend */
1750 do_scroll_view(struct view *view, int lines)
1752 bool redraw_current_line = FALSE;
1754 /* The rendering expects the new offset. */
1755 view->offset += lines;
1757 assert(0 <= view->offset && view->offset < view->lines);
1760 /* Move current line into the view. */
1761 if (view->lineno < view->offset) {
1762 view->lineno = view->offset;
1763 redraw_current_line = TRUE;
1764 } else if (view->lineno >= view->offset + view->height) {
1765 view->lineno = view->offset + view->height - 1;
1766 redraw_current_line = TRUE;
1769 assert(view->offset <= view->lineno && view->lineno < view->lines);
1771 /* Redraw the whole screen if scrolling is pointless. */
1772 if (view->height < ABS(lines)) {
1776 int line = lines > 0 ? view->height - lines : 0;
1777 int end = line + ABS(lines);
1779 wscrl(view->win, lines);
1781 for (; line < end; line++) {
1782 if (!draw_view_line(view, line))
1786 if (redraw_current_line)
1787 draw_view_line(view, view->lineno - view->offset);
1790 redrawwin(view->win);
1791 wrefresh(view->win);
1795 /* Scroll frontend */
1797 scroll_view(struct view *view, enum request request)
1801 assert(view_is_displayed(view));
1804 case REQ_SCROLL_PAGE_DOWN:
1805 lines = view->height;
1806 case REQ_SCROLL_LINE_DOWN:
1807 if (view->offset + lines > view->lines)
1808 lines = view->lines - view->offset;
1810 if (lines == 0 || view->offset + view->height >= view->lines) {
1811 report("Cannot scroll beyond the last line");
1816 case REQ_SCROLL_PAGE_UP:
1817 lines = view->height;
1818 case REQ_SCROLL_LINE_UP:
1819 if (lines > view->offset)
1820 lines = view->offset;
1823 report("Cannot scroll beyond the first line");
1831 die("request %d not handled in switch", request);
1834 do_scroll_view(view, lines);
1839 move_view(struct view *view, enum request request)
1841 int scroll_steps = 0;
1845 case REQ_MOVE_FIRST_LINE:
1846 steps = -view->lineno;
1849 case REQ_MOVE_LAST_LINE:
1850 steps = view->lines - view->lineno - 1;
1853 case REQ_MOVE_PAGE_UP:
1854 steps = view->height > view->lineno
1855 ? -view->lineno : -view->height;
1858 case REQ_MOVE_PAGE_DOWN:
1859 steps = view->lineno + view->height >= view->lines
1860 ? view->lines - view->lineno - 1 : view->height;
1872 die("request %d not handled in switch", request);
1875 if (steps <= 0 && view->lineno == 0) {
1876 report("Cannot move beyond the first line");
1879 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
1880 report("Cannot move beyond the last line");
1884 /* Move the current line */
1885 view->lineno += steps;
1886 assert(0 <= view->lineno && view->lineno < view->lines);
1888 /* Check whether the view needs to be scrolled */
1889 if (view->lineno < view->offset ||
1890 view->lineno >= view->offset + view->height) {
1891 scroll_steps = steps;
1892 if (steps < 0 && -steps > view->offset) {
1893 scroll_steps = -view->offset;
1895 } else if (steps > 0) {
1896 if (view->lineno == view->lines - 1 &&
1897 view->lines > view->height) {
1898 scroll_steps = view->lines - view->offset - 1;
1899 if (scroll_steps >= view->height)
1900 scroll_steps -= view->height - 1;
1905 if (!view_is_displayed(view)) {
1906 view->offset += scroll_steps;
1907 assert(0 <= view->offset && view->offset < view->lines);
1908 view->ops->select(view, &view->line[view->lineno]);
1912 /* Repaint the old "current" line if we be scrolling */
1913 if (ABS(steps) < view->height)
1914 draw_view_line(view, view->lineno - steps - view->offset);
1917 do_scroll_view(view, scroll_steps);
1921 /* Draw the current line */
1922 draw_view_line(view, view->lineno - view->offset);
1924 redrawwin(view->win);
1925 wrefresh(view->win);
1934 static void search_view(struct view *view, enum request request);
1937 find_next_line(struct view *view, unsigned long lineno, struct line *line)
1939 assert(view_is_displayed(view));
1941 if (!view->ops->grep(view, line))
1944 if (lineno - view->offset >= view->height) {
1945 view->offset = lineno;
1946 view->lineno = lineno;
1950 unsigned long old_lineno = view->lineno - view->offset;
1952 view->lineno = lineno;
1953 draw_view_line(view, old_lineno);
1955 draw_view_line(view, view->lineno - view->offset);
1956 redrawwin(view->win);
1957 wrefresh(view->win);
1960 report("Line %ld matches '%s'", lineno + 1, view->grep);
1965 find_next(struct view *view, enum request request)
1967 unsigned long lineno = view->lineno;
1972 report("No previous search");
1974 search_view(view, request);
1984 case REQ_SEARCH_BACK:
1993 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
1994 lineno += direction;
1996 /* Note, lineno is unsigned long so will wrap around in which case it
1997 * will become bigger than view->lines. */
1998 for (; lineno < view->lines; lineno += direction) {
1999 struct line *line = &view->line[lineno];
2001 if (find_next_line(view, lineno, line))
2005 report("No match found for '%s'", view->grep);
2009 search_view(struct view *view, enum request request)
2014 regfree(view->regex);
2017 view->regex = calloc(1, sizeof(*view->regex));
2022 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2023 if (regex_err != 0) {
2024 char buf[SIZEOF_STR] = "unknown error";
2026 regerror(regex_err, view->regex, buf, sizeof(buf));
2027 report("Search failed: %s", buf);
2031 string_copy(view->grep, opt_search);
2033 find_next(view, request);
2037 * Incremental updating
2041 end_update(struct view *view)
2045 set_nonblocking_input(FALSE);
2046 if (view->pipe == stdin)
2054 begin_update(struct view *view)
2060 string_copy(view->cmd, opt_cmd);
2062 /* When running random commands, initially show the
2063 * command in the title. However, it maybe later be
2064 * overwritten if a commit line is selected. */
2065 if (view == VIEW(REQ_VIEW_PAGER))
2066 string_copy(view->ref, view->cmd);
2070 } else if (view == VIEW(REQ_VIEW_TREE)) {
2071 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2072 char path[SIZEOF_STR];
2074 if (strcmp(view->vid, view->id))
2075 opt_path[0] = path[0] = 0;
2076 else if (sq_quote(path, 0, opt_path) >= sizeof(path))
2079 if (!string_format(view->cmd, format, view->id, path))
2083 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2084 const char *id = view->id;
2086 if (!string_format(view->cmd, format, id, id, id, id, id))
2089 /* Put the current ref_* value to the view title ref
2090 * member. This is needed by the blob view. Most other
2091 * views sets it automatically after loading because the
2092 * first line is a commit line. */
2093 string_copy_rev(view->ref, view->id);
2096 /* Special case for the pager view. */
2098 view->pipe = opt_pipe;
2101 view->pipe = popen(view->cmd, "r");
2107 set_nonblocking_input(TRUE);
2112 string_copy_rev(view->vid, view->id);
2117 for (i = 0; i < view->lines; i++)
2118 if (view->line[i].data)
2119 free(view->line[i].data);
2125 view->start_time = time(NULL);
2130 #define ITEM_CHUNK_SIZE 256
2132 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2134 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2135 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2137 if (mem == NULL || num_chunks != num_chunks_new) {
2138 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2139 mem = realloc(mem, *size * item_size);
2145 static struct line *
2146 realloc_lines(struct view *view, size_t line_size)
2148 size_t alloc = view->line_alloc;
2149 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2150 sizeof(*view->line));
2156 view->line_alloc = alloc;
2157 view->line_size = line_size;
2162 update_view(struct view *view)
2164 char in_buffer[BUFSIZ];
2165 char out_buffer[BUFSIZ * 2];
2167 /* The number of lines to read. If too low it will cause too much
2168 * redrawing (and possible flickering), if too high responsiveness
2170 unsigned long lines = view->height;
2171 int redraw_from = -1;
2176 /* Only redraw if lines are visible. */
2177 if (view->offset + view->height >= view->lines)
2178 redraw_from = view->lines - view->offset;
2180 /* FIXME: This is probably not perfect for backgrounded views. */
2181 if (!realloc_lines(view, view->lines + lines))
2184 while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) {
2185 size_t linelen = strlen(line);
2188 line[linelen - 1] = 0;
2190 if (opt_iconv != ICONV_NONE) {
2191 ICONV_CONST char *inbuf = line;
2192 size_t inlen = linelen;
2194 char *outbuf = out_buffer;
2195 size_t outlen = sizeof(out_buffer);
2199 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2200 if (ret != (size_t) -1) {
2202 linelen = strlen(out_buffer);
2206 if (!view->ops->read(view, line))
2216 lines = view->lines;
2217 for (digits = 0; lines; digits++)
2220 /* Keep the displayed view in sync with line number scaling. */
2221 if (digits != view->digits) {
2222 view->digits = digits;
2227 if (!view_is_displayed(view))
2230 if (view == VIEW(REQ_VIEW_TREE)) {
2231 /* Clear the view and redraw everything since the tree sorting
2232 * might have rearranged things. */
2235 } else if (redraw_from >= 0) {
2236 /* If this is an incremental update, redraw the previous line
2237 * since for commits some members could have changed when
2238 * loading the main view. */
2239 if (redraw_from > 0)
2242 /* Since revision graph visualization requires knowledge
2243 * about the parent commit, it causes a further one-off
2244 * needed to be redrawn for incremental updates. */
2245 if (redraw_from > 0 && opt_rev_graph)
2248 /* Incrementally draw avoids flickering. */
2249 redraw_view_from(view, redraw_from);
2252 if (view == VIEW(REQ_VIEW_BLAME))
2253 redraw_view_dirty(view);
2255 /* Update the title _after_ the redraw so that if the redraw picks up a
2256 * commit reference in view->ref it'll be available here. */
2257 update_view_title(view);
2260 if (ferror(view->pipe)) {
2261 report("Failed to read: %s", strerror(errno));
2264 } else if (feof(view->pipe)) {
2272 report("Allocation failure");
2275 if (view->ops->read(view, NULL))
2280 static struct line *
2281 add_line_data(struct view *view, void *data, enum line_type type)
2283 struct line *line = &view->line[view->lines++];
2285 memset(line, 0, sizeof(*line));
2292 static struct line *
2293 add_line_text(struct view *view, char *data, enum line_type type)
2296 data = strdup(data);
2298 return data ? add_line_data(view, data, type) : NULL;
2307 OPEN_DEFAULT = 0, /* Use default view switching. */
2308 OPEN_SPLIT = 1, /* Split current view. */
2309 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2310 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2311 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2315 open_view(struct view *prev, enum request request, enum open_flags flags)
2317 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2318 bool split = !!(flags & OPEN_SPLIT);
2319 bool reload = !!(flags & OPEN_RELOAD);
2320 bool nomaximize = !!(flags & OPEN_NOMAXIMIZE);
2321 struct view *view = VIEW(request);
2322 int nviews = displayed_views();
2323 struct view *base_view = display[0];
2325 if (view == prev && nviews == 1 && !reload) {
2326 report("Already in %s view", view->name);
2330 if (view->git_dir && !opt_git_dir[0]) {
2331 report("The %s view is disabled in pager view", view->name);
2339 } else if (!nomaximize) {
2340 /* Maximize the current view. */
2341 memset(display, 0, sizeof(display));
2343 display[current_view] = view;
2346 /* Resize the view when switching between split- and full-screen,
2347 * or when switching between two different full-screen views. */
2348 if (nviews != displayed_views() ||
2349 (nviews == 1 && base_view != display[0]))
2352 if (view->ops->open) {
2353 if (!view->ops->open(view)) {
2354 report("Failed to load %s view", view->name);
2358 } else if ((reload || strcmp(view->vid, view->id)) &&
2359 !begin_update(view)) {
2360 report("Failed to load %s view", view->name);
2364 if (split && prev->lineno - prev->offset >= prev->height) {
2365 /* Take the title line into account. */
2366 int lines = prev->lineno - prev->offset - prev->height + 1;
2368 /* Scroll the view that was split if the current line is
2369 * outside the new limited view. */
2370 do_scroll_view(prev, lines);
2373 if (prev && view != prev) {
2374 if (split && !backgrounded) {
2375 /* "Blur" the previous view. */
2376 update_view_title(prev);
2379 view->parent = prev;
2382 if (view->pipe && view->lines == 0) {
2383 /* Clear the old view and let the incremental updating refill
2392 /* If the view is backgrounded the above calls to report()
2393 * won't redraw the view title. */
2395 update_view_title(view);
2399 open_external_viewer(const char *cmd)
2401 def_prog_mode(); /* save current tty modes */
2402 endwin(); /* restore original tty modes */
2404 fprintf(stderr, "Press Enter to continue");
2411 open_mergetool(const char *file)
2413 char cmd[SIZEOF_STR];
2414 char file_sq[SIZEOF_STR];
2416 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2417 string_format(cmd, "git mergetool %s", file_sq)) {
2418 open_external_viewer(cmd);
2423 open_editor(bool from_root, const char *file)
2425 char cmd[SIZEOF_STR];
2426 char file_sq[SIZEOF_STR];
2428 char *prefix = from_root ? opt_cdup : "";
2430 editor = getenv("GIT_EDITOR");
2431 if (!editor && *opt_editor)
2432 editor = opt_editor;
2434 editor = getenv("VISUAL");
2436 editor = getenv("EDITOR");
2440 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2441 string_format(cmd, "%s %s%s", editor, prefix, file_sq)) {
2442 open_external_viewer(cmd);
2447 open_run_request(enum request request)
2449 struct run_request *req = get_run_request(request);
2450 char buf[SIZEOF_STR * 2];
2455 report("Unknown run request");
2463 char *next = strstr(cmd, "%(");
2464 int len = next - cmd;
2471 } else if (!strncmp(next, "%(head)", 7)) {
2474 } else if (!strncmp(next, "%(commit)", 9)) {
2477 } else if (!strncmp(next, "%(blob)", 7)) {
2481 report("Unknown replacement in run request: `%s`", req->cmd);
2485 if (!string_format_from(buf, &bufpos, "%.*s%s", len, cmd, value))
2489 next = strchr(next, ')') + 1;
2493 open_external_viewer(buf);
2497 * User request switch noodle
2501 view_driver(struct view *view, enum request request)
2505 if (request == REQ_NONE) {
2510 if (request > REQ_NONE) {
2511 open_run_request(request);
2512 /* FIXME: When all views can refresh always do this. */
2513 if (view == VIEW(REQ_VIEW_STATUS) ||
2514 view == VIEW(REQ_VIEW_STAGE))
2515 request = REQ_REFRESH;
2520 if (view && view->lines) {
2521 request = view->ops->request(view, request, &view->line[view->lineno]);
2522 if (request == REQ_NONE)
2529 case REQ_MOVE_PAGE_UP:
2530 case REQ_MOVE_PAGE_DOWN:
2531 case REQ_MOVE_FIRST_LINE:
2532 case REQ_MOVE_LAST_LINE:
2533 move_view(view, request);
2536 case REQ_SCROLL_LINE_DOWN:
2537 case REQ_SCROLL_LINE_UP:
2538 case REQ_SCROLL_PAGE_DOWN:
2539 case REQ_SCROLL_PAGE_UP:
2540 scroll_view(view, request);
2543 case REQ_VIEW_BLAME:
2545 report("No file chosen, press %s to open tree view",
2546 get_key(REQ_VIEW_TREE));
2549 open_view(view, request, OPEN_DEFAULT);
2554 report("No file chosen, press %s to open tree view",
2555 get_key(REQ_VIEW_TREE));
2558 open_view(view, request, OPEN_DEFAULT);
2561 case REQ_VIEW_PAGER:
2562 if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2563 report("No pager content, press %s to run command from prompt",
2564 get_key(REQ_PROMPT));
2567 open_view(view, request, OPEN_DEFAULT);
2570 case REQ_VIEW_STAGE:
2571 if (!VIEW(REQ_VIEW_STAGE)->lines) {
2572 report("No stage content, press %s to open the status view and choose file",
2573 get_key(REQ_VIEW_STATUS));
2576 open_view(view, request, OPEN_DEFAULT);
2579 case REQ_VIEW_STATUS:
2580 if (opt_is_inside_work_tree == FALSE) {
2581 report("The status view requires a working tree");
2584 open_view(view, request, OPEN_DEFAULT);
2592 open_view(view, request, OPEN_DEFAULT);
2597 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2599 if ((view == VIEW(REQ_VIEW_DIFF) &&
2600 view->parent == VIEW(REQ_VIEW_MAIN)) ||
2601 (view == VIEW(REQ_VIEW_DIFF) &&
2602 view->parent == VIEW(REQ_VIEW_BLAME)) ||
2603 (view == VIEW(REQ_VIEW_STAGE) &&
2604 view->parent == VIEW(REQ_VIEW_STATUS)) ||
2605 (view == VIEW(REQ_VIEW_BLOB) &&
2606 view->parent == VIEW(REQ_VIEW_TREE))) {
2609 view = view->parent;
2610 line = view->lineno;
2611 move_view(view, request);
2612 if (view_is_displayed(view))
2613 update_view_title(view);
2614 if (line != view->lineno)
2615 view->ops->request(view, REQ_ENTER,
2616 &view->line[view->lineno]);
2619 move_view(view, request);
2625 int nviews = displayed_views();
2626 int next_view = (current_view + 1) % nviews;
2628 if (next_view == current_view) {
2629 report("Only one view is displayed");
2633 current_view = next_view;
2634 /* Blur out the title of the previous view. */
2635 update_view_title(view);
2640 report("Refreshing is not yet supported for the %s view", view->name);
2644 if (displayed_views() == 2)
2645 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
2648 case REQ_TOGGLE_LINENO:
2649 opt_line_number = !opt_line_number;
2653 case REQ_TOGGLE_DATE:
2654 opt_date = !opt_date;
2658 case REQ_TOGGLE_AUTHOR:
2659 opt_author = !opt_author;
2663 case REQ_TOGGLE_REV_GRAPH:
2664 opt_rev_graph = !opt_rev_graph;
2668 case REQ_TOGGLE_REFS:
2669 opt_show_refs = !opt_show_refs;
2674 /* Always reload^Wrerun commands from the prompt. */
2675 open_view(view, opt_request, OPEN_RELOAD);
2679 case REQ_SEARCH_BACK:
2680 search_view(view, request);
2685 find_next(view, request);
2688 case REQ_STOP_LOADING:
2689 for (i = 0; i < ARRAY_SIZE(views); i++) {
2692 report("Stopped loading the %s view", view->name),
2697 case REQ_SHOW_VERSION:
2698 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
2701 case REQ_SCREEN_RESIZE:
2704 case REQ_SCREEN_REDRAW:
2709 report("Nothing to edit");
2714 report("Nothing to enter");
2718 case REQ_VIEW_CLOSE:
2719 /* XXX: Mark closed views by letting view->parent point to the
2720 * view itself. Parents to closed view should never be
2723 view->parent->parent != view->parent) {
2724 memset(display, 0, sizeof(display));
2726 display[current_view] = view->parent;
2727 view->parent = view;
2737 /* An unknown key will show most commonly used commands. */
2738 report("Unknown key, press 'h' for help");
2751 pager_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
2753 static char spaces[] = " ";
2754 char *text = line->data;
2755 enum line_type type = line->type;
2756 int attr = A_NORMAL;
2759 wmove(view->win, lineno, 0);
2763 wchgat(view->win, -1, 0, type, NULL);
2764 attr = get_line_attr(type);
2766 wattrset(view->win, attr);
2768 if (opt_line_number) {
2769 col += draw_lineno(view, lineno, view->width, selected);
2770 if (col >= view->width)
2775 attr = get_line_attr(type);
2776 wattrset(view->win, attr);
2778 if (opt_tab_size < TABSIZE) {
2779 int col_offset = col;
2782 while (text && col_offset + col < view->width) {
2783 int cols_max = view->width - col_offset - col;
2787 if (*text == '\t') {
2789 assert(sizeof(spaces) > TABSIZE);
2791 cols = opt_tab_size - (col % opt_tab_size);
2794 text = strchr(text, '\t');
2795 cols = line ? text - pos : strlen(pos);
2798 waddnstr(view->win, pos, MIN(cols, cols_max));
2803 draw_text(view, text, view->width - col, TRUE, selected);
2810 add_describe_ref(char *buf, size_t *bufpos, char *commit_id, const char *sep)
2812 char refbuf[SIZEOF_STR];
2816 if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id))
2819 pipe = popen(refbuf, "r");
2823 if ((ref = fgets(refbuf, sizeof(refbuf), pipe)))
2824 ref = chomp_string(ref);
2830 /* This is the only fatal call, since it can "corrupt" the buffer. */
2831 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
2838 add_pager_refs(struct view *view, struct line *line)
2840 char buf[SIZEOF_STR];
2841 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
2843 size_t bufpos = 0, refpos = 0;
2844 const char *sep = "Refs: ";
2845 bool is_tag = FALSE;
2847 assert(line->type == LINE_COMMIT);
2849 refs = get_refs(commit_id);
2851 if (view == VIEW(REQ_VIEW_DIFF))
2852 goto try_add_describe_ref;
2857 struct ref *ref = refs[refpos];
2858 char *fmt = ref->tag ? "%s[%s]" :
2859 ref->remote ? "%s<%s>" : "%s%s";
2861 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
2866 } while (refs[refpos++]->next);
2868 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
2869 try_add_describe_ref:
2870 /* Add <tag>-g<commit_id> "fake" reference. */
2871 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
2878 if (!realloc_lines(view, view->line_size + 1))
2881 add_line_text(view, buf, LINE_PP_REFS);
2885 pager_read(struct view *view, char *data)
2892 line = add_line_text(view, data, get_line_type(data));
2896 if (line->type == LINE_COMMIT &&
2897 (view == VIEW(REQ_VIEW_DIFF) ||
2898 view == VIEW(REQ_VIEW_LOG)))
2899 add_pager_refs(view, line);
2905 pager_request(struct view *view, enum request request, struct line *line)
2909 if (request != REQ_ENTER)
2912 if (line->type == LINE_COMMIT &&
2913 (view == VIEW(REQ_VIEW_LOG) ||
2914 view == VIEW(REQ_VIEW_PAGER))) {
2915 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
2919 /* Always scroll the view even if it was split. That way
2920 * you can use Enter to scroll through the log view and
2921 * split open each commit diff. */
2922 scroll_view(view, REQ_SCROLL_LINE_DOWN);
2924 /* FIXME: A minor workaround. Scrolling the view will call report("")
2925 * but if we are scrolling a non-current view this won't properly
2926 * update the view title. */
2928 update_view_title(view);
2934 pager_grep(struct view *view, struct line *line)
2937 char *text = line->data;
2942 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
2949 pager_select(struct view *view, struct line *line)
2951 if (line->type == LINE_COMMIT) {
2952 char *text = (char *)line->data + STRING_SIZE("commit ");
2954 if (view != VIEW(REQ_VIEW_PAGER))
2955 string_copy_rev(view->ref, text);
2956 string_copy_rev(ref_commit, text);
2960 static struct view_ops pager_ops = {
2976 help_open(struct view *view)
2979 int lines = ARRAY_SIZE(req_info) + 2;
2982 if (view->lines > 0)
2985 for (i = 0; i < ARRAY_SIZE(req_info); i++)
2986 if (!req_info[i].request)
2989 lines += run_requests + 1;
2991 view->line = calloc(lines, sizeof(*view->line));
2995 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
2997 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3000 if (req_info[i].request == REQ_NONE)
3003 if (!req_info[i].request) {
3004 add_line_text(view, "", LINE_DEFAULT);
3005 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3009 key = get_key(req_info[i].request);
3011 key = "(no key defined)";
3013 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
3016 add_line_text(view, buf, LINE_DEFAULT);
3020 add_line_text(view, "", LINE_DEFAULT);
3021 add_line_text(view, "External commands:", LINE_DEFAULT);
3024 for (i = 0; i < run_requests; i++) {
3025 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3031 key = get_key_name(req->key);
3033 key = "(no key defined)";
3035 if (!string_format(buf, " %-10s %-14s `%s`",
3036 keymap_table[req->keymap].name,
3040 add_line_text(view, buf, LINE_DEFAULT);
3046 static struct view_ops help_ops = {
3061 struct tree_stack_entry {
3062 struct tree_stack_entry *prev; /* Entry below this in the stack */
3063 unsigned long lineno; /* Line number to restore */
3064 char *name; /* Position of name in opt_path */
3067 /* The top of the path stack. */
3068 static struct tree_stack_entry *tree_stack = NULL;
3069 unsigned long tree_lineno = 0;
3072 pop_tree_stack_entry(void)
3074 struct tree_stack_entry *entry = tree_stack;
3076 tree_lineno = entry->lineno;
3078 tree_stack = entry->prev;
3083 push_tree_stack_entry(char *name, unsigned long lineno)
3085 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3086 size_t pathlen = strlen(opt_path);
3091 entry->prev = tree_stack;
3092 entry->name = opt_path + pathlen;
3095 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3096 pop_tree_stack_entry();
3100 /* Move the current line to the first tree entry. */
3102 entry->lineno = lineno;
3105 /* Parse output from git-ls-tree(1):
3107 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3108 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3109 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3110 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3113 #define SIZEOF_TREE_ATTR \
3114 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3116 #define TREE_UP_FORMAT "040000 tree %s\t.."
3119 tree_compare_entry(enum line_type type1, char *name1,
3120 enum line_type type2, char *name2)
3122 if (type1 != type2) {
3123 if (type1 == LINE_TREE_DIR)
3128 return strcmp(name1, name2);
3132 tree_path(struct line *line)
3134 char *path = line->data;
3136 return path + SIZEOF_TREE_ATTR;
3140 tree_read(struct view *view, char *text)
3142 size_t textlen = text ? strlen(text) : 0;
3143 char buf[SIZEOF_STR];
3145 enum line_type type;
3146 bool first_read = view->lines == 0;
3150 if (textlen <= SIZEOF_TREE_ATTR)
3153 type = text[STRING_SIZE("100644 ")] == 't'
3154 ? LINE_TREE_DIR : LINE_TREE_FILE;
3157 /* Add path info line */
3158 if (!string_format(buf, "Directory path /%s", opt_path) ||
3159 !realloc_lines(view, view->line_size + 1) ||
3160 !add_line_text(view, buf, LINE_DEFAULT))
3163 /* Insert "link" to parent directory. */
3165 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
3166 !realloc_lines(view, view->line_size + 1) ||
3167 !add_line_text(view, buf, LINE_TREE_DIR))
3172 /* Strip the path part ... */
3174 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3175 size_t striplen = strlen(opt_path);
3176 char *path = text + SIZEOF_TREE_ATTR;
3178 if (pathlen > striplen)
3179 memmove(path, path + striplen,
3180 pathlen - striplen + 1);
3183 /* Skip "Directory ..." and ".." line. */
3184 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
3185 struct line *line = &view->line[pos];
3186 char *path1 = tree_path(line);
3187 char *path2 = text + SIZEOF_TREE_ATTR;
3188 int cmp = tree_compare_entry(line->type, path1, type, path2);
3193 text = strdup(text);
3197 if (view->lines > pos)
3198 memmove(&view->line[pos + 1], &view->line[pos],
3199 (view->lines - pos) * sizeof(*line));
3201 line = &view->line[pos];
3208 if (!add_line_text(view, text, type))
3211 if (tree_lineno > view->lineno) {
3212 view->lineno = tree_lineno;
3220 tree_request(struct view *view, enum request request, struct line *line)
3222 enum open_flags flags;
3224 if (request == REQ_VIEW_BLAME) {
3225 char *filename = tree_path(line);
3227 if (line->type == LINE_TREE_DIR) {
3228 report("Cannot show blame for directory %s", opt_path);
3232 string_copy(opt_ref, view->vid);
3233 string_format(opt_file, "%s%s", opt_path, filename);
3236 if (request == REQ_TREE_PARENT) {
3239 request = REQ_ENTER;
3240 line = &view->line[1];
3242 /* quit view if at top of tree */
3243 return REQ_VIEW_CLOSE;
3246 if (request != REQ_ENTER)
3249 /* Cleanup the stack if the tree view is at a different tree. */
3250 while (!*opt_path && tree_stack)
3251 pop_tree_stack_entry();
3253 switch (line->type) {
3255 /* Depending on whether it is a subdir or parent (updir?) link
3256 * mangle the path buffer. */
3257 if (line == &view->line[1] && *opt_path) {
3258 pop_tree_stack_entry();
3261 char *basename = tree_path(line);
3263 push_tree_stack_entry(basename, view->lineno);
3266 /* Trees and subtrees share the same ID, so they are not not
3267 * unique like blobs. */
3268 flags = OPEN_RELOAD;
3269 request = REQ_VIEW_TREE;
3272 case LINE_TREE_FILE:
3273 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3274 request = REQ_VIEW_BLOB;
3281 open_view(view, request, flags);
3282 if (request == REQ_VIEW_TREE) {
3283 view->lineno = tree_lineno;
3290 tree_select(struct view *view, struct line *line)
3292 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3294 if (line->type == LINE_TREE_FILE) {
3295 string_copy_rev(ref_blob, text);
3297 } else if (line->type != LINE_TREE_DIR) {
3301 string_copy_rev(view->ref, text);
3304 static struct view_ops tree_ops = {
3315 blob_read(struct view *view, char *line)
3319 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3322 static struct view_ops blob_ops = {
3335 * Loading the blame view is a two phase job:
3337 * 1. File content is read either using opt_file from the
3338 * filesystem or using git-cat-file.
3339 * 2. Then blame information is incrementally added by
3340 * reading output from git-blame.
3343 struct blame_commit {
3344 char id[SIZEOF_REV]; /* SHA1 ID. */
3345 char title[128]; /* First line of the commit message. */
3346 char author[75]; /* Author of the commit. */
3347 struct tm time; /* Date from the author ident. */
3348 char filename[128]; /* Name of file. */
3352 struct blame_commit *commit;
3353 unsigned int header:1;
3357 #define BLAME_CAT_FILE_CMD "git cat-file blob %s:%s"
3358 #define BLAME_INCREMENTAL_CMD "git blame --incremental %s %s"
3361 blame_open(struct view *view)
3363 char path[SIZEOF_STR];
3364 char ref[SIZEOF_STR] = "";
3366 if (sq_quote(path, 0, opt_file) >= sizeof(path))
3369 if (*opt_ref && sq_quote(ref, 0, opt_ref) >= sizeof(ref))
3373 if (!string_format(view->cmd, BLAME_CAT_FILE_CMD, ref, path))
3376 view->pipe = fopen(opt_file, "r");
3378 !string_format(view->cmd, BLAME_CAT_FILE_CMD, "HEAD", path))
3383 view->pipe = popen(view->cmd, "r");
3387 if (!string_format(view->cmd, BLAME_INCREMENTAL_CMD, ref, path))
3390 string_format(view->ref, "%s ...", opt_file);
3391 string_copy_rev(view->vid, opt_file);
3392 set_nonblocking_input(TRUE);
3397 for (i = 0; i < view->lines; i++)
3398 free(view->line[i].data);
3402 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
3403 view->offset = view->lines = view->lineno = 0;
3405 view->start_time = time(NULL);
3410 static struct blame_commit *
3411 get_blame_commit(struct view *view, const char *id)
3415 for (i = 0; i < view->lines; i++) {
3416 struct blame *blame = view->line[i].data;
3421 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3422 return blame->commit;
3426 struct blame_commit *commit = calloc(1, sizeof(*commit));
3429 string_ncopy(commit->id, id, SIZEOF_REV);
3435 parse_number(char **posref, size_t *number, size_t min, size_t max)
3437 char *pos = *posref;
3440 pos = strchr(pos + 1, ' ');
3441 if (!pos || !isdigit(pos[1]))
3443 *number = atoi(pos + 1);
3444 if (*number < min || *number > max)
3451 static struct blame_commit *
3452 parse_blame_commit(struct view *view, char *text, int *blamed)
3454 struct blame_commit *commit;
3455 struct blame *blame;
3456 char *pos = text + SIZEOF_REV - 1;
3460 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3463 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3464 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3467 commit = get_blame_commit(view, text);
3473 struct line *line = &view->line[lineno + group - 1];
3476 blame->commit = commit;
3477 blame->header = !group;
3485 blame_read_file(struct view *view, char *line)
3490 if (view->lines > 0)
3491 pipe = popen(view->cmd, "r");
3492 else if (!view->parent)
3493 die("No blame exist for %s", view->vid);
3496 report("Failed to load blame data");
3505 size_t linelen = strlen(line);
3506 struct blame *blame = malloc(sizeof(*blame) + linelen);
3511 blame->commit = NULL;
3512 strncpy(blame->text, line, linelen);
3513 blame->text[linelen] = 0;
3514 return add_line_data(view, blame, LINE_BLAME_COMMIT) != NULL;
3519 match_blame_header(const char *name, char **line)
3521 size_t namelen = strlen(name);
3522 bool matched = !strncmp(name, *line, namelen);
3531 blame_read(struct view *view, char *line)
3533 static struct blame_commit *commit = NULL;
3534 static int blamed = 0;
3535 static time_t author_time;
3538 return blame_read_file(view, line);
3544 string_format(view->ref, "%s", view->vid);
3545 if (view_is_displayed(view)) {
3546 update_view_title(view);
3547 redraw_view_from(view, 0);
3553 commit = parse_blame_commit(view, line, &blamed);
3554 string_format(view->ref, "%s %2d%%", view->vid,
3555 blamed * 100 / view->lines);
3557 } else if (match_blame_header("author ", &line)) {
3558 string_ncopy(commit->author, line, strlen(line));
3560 } else if (match_blame_header("author-time ", &line)) {
3561 author_time = (time_t) atol(line);
3563 } else if (match_blame_header("author-tz ", &line)) {
3566 tz = ('0' - line[1]) * 60 * 60 * 10;
3567 tz += ('0' - line[2]) * 60 * 60;
3568 tz += ('0' - line[3]) * 60;
3569 tz += ('0' - line[4]) * 60;
3575 gmtime_r(&author_time, &commit->time);
3577 } else if (match_blame_header("summary ", &line)) {
3578 string_ncopy(commit->title, line, strlen(line));
3580 } else if (match_blame_header("filename ", &line)) {
3581 string_ncopy(commit->filename, line, strlen(line));
3589 blame_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
3591 struct blame *blame = line->data;
3594 wmove(view->win, lineno, 0);
3597 wattrset(view->win, get_line_attr(LINE_CURSOR));
3598 wchgat(view->win, -1, 0, LINE_CURSOR, NULL);
3600 wattrset(view->win, A_NORMAL);
3607 wattrset(view->win, get_line_attr(LINE_MAIN_DATE));
3608 if (blame->commit) {
3609 char buf[DATE_COLS + 1];
3612 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &blame->commit->time);
3613 n = draw_text(view, buf, view->width - col, FALSE, selected);
3614 draw_text(view, " ", view->width - col - n, FALSE, selected);
3618 wmove(view->win, lineno, col);
3619 if (col >= view->width)
3624 int max = MIN(AUTHOR_COLS - 1, view->width - col);
3627 wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR));
3629 draw_text(view, blame->commit->author, max, TRUE, selected);
3631 if (col >= view->width)
3633 wmove(view->win, lineno, col);
3637 int max = MIN(ID_COLS - 1, view->width - col);
3640 wattrset(view->win, get_line_attr(LINE_BLAME_ID));
3642 draw_text(view, blame->commit->id, max, FALSE, -1);
3644 if (col >= view->width)
3646 wmove(view->win, lineno, col);
3650 col += draw_lineno(view, lineno, view->width - col, selected);
3651 if (col >= view->width)
3655 col += draw_text(view, blame->text, view->width - col, TRUE, selected);
3661 blame_request(struct view *view, enum request request, struct line *line)
3663 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3664 struct blame *blame = line->data;
3668 if (!blame->commit) {
3669 report("No commit loaded yet");
3673 if (!strcmp(blame->commit->id, NULL_ID)) {
3674 char path[SIZEOF_STR];
3676 if (sq_quote(path, 0, view->vid) >= sizeof(path))
3678 string_format(opt_cmd, "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s 2>/dev/null", path);
3681 open_view(view, REQ_VIEW_DIFF, flags);
3692 blame_grep(struct view *view, struct line *line)
3694 struct blame *blame = line->data;
3695 struct blame_commit *commit = blame->commit;
3698 #define MATCH(text) \
3699 (*text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3702 char buf[DATE_COLS + 1];
3704 if (MATCH(commit->title) ||
3705 MATCH(commit->author) ||
3709 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
3714 return MATCH(blame->text);
3720 blame_select(struct view *view, struct line *line)
3722 struct blame *blame = line->data;
3723 struct blame_commit *commit = blame->commit;
3728 if (!strcmp(commit->id, NULL_ID))
3729 string_ncopy(ref_commit, "HEAD", 4);
3731 string_copy_rev(ref_commit, commit->id);
3734 static struct view_ops blame_ops = {
3752 char rev[SIZEOF_REV];
3753 char name[SIZEOF_STR];
3757 char rev[SIZEOF_REV];
3758 char name[SIZEOF_STR];
3762 static char status_onbranch[SIZEOF_STR];
3763 static struct status stage_status;
3764 static enum line_type stage_line_type;
3766 /* Get fields from the diff line:
3767 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3770 status_get_diff(struct status *file, char *buf, size_t bufsize)
3772 char *old_mode = buf + 1;
3773 char *new_mode = buf + 8;
3774 char *old_rev = buf + 15;
3775 char *new_rev = buf + 56;
3776 char *status = buf + 97;
3779 old_mode[-1] != ':' ||
3780 new_mode[-1] != ' ' ||
3781 old_rev[-1] != ' ' ||
3782 new_rev[-1] != ' ' ||
3786 file->status = *status;
3788 string_copy_rev(file->old.rev, old_rev);
3789 string_copy_rev(file->new.rev, new_rev);
3791 file->old.mode = strtoul(old_mode, NULL, 8);
3792 file->new.mode = strtoul(new_mode, NULL, 8);
3794 file->old.name[0] = file->new.name[0] = 0;
3800 status_run(struct view *view, const char cmd[], char status, enum line_type type)
3802 struct status *file = NULL;
3803 struct status *unmerged = NULL;
3804 char buf[SIZEOF_STR * 4];
3808 pipe = popen(cmd, "r");
3812 add_line_data(view, NULL, type);
3814 while (!feof(pipe) && !ferror(pipe)) {
3818 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3821 bufsize += readsize;
3823 /* Process while we have NUL chars. */
3824 while ((sep = memchr(buf, 0, bufsize))) {
3825 size_t sepsize = sep - buf + 1;
3828 if (!realloc_lines(view, view->line_size + 1))
3831 file = calloc(1, sizeof(*file));
3835 add_line_data(view, file, type);
3838 /* Parse diff info part. */
3840 file->status = status;
3842 string_copy(file->old.rev, NULL_ID);
3844 } else if (!file->status) {
3845 if (!status_get_diff(file, buf, sepsize))
3849 memmove(buf, sep + 1, bufsize);
3851 sep = memchr(buf, 0, bufsize);
3854 sepsize = sep - buf + 1;
3856 /* Collapse all 'M'odified entries that
3857 * follow a associated 'U'nmerged entry.
3859 if (file->status == 'U') {
3862 } else if (unmerged) {
3863 int collapse = !strcmp(buf, unmerged->new.name);
3874 /* Grab the old name for rename/copy. */
3875 if (!*file->old.name &&
3876 (file->status == 'R' || file->status == 'C')) {
3877 sepsize = sep - buf + 1;
3878 string_ncopy(file->old.name, buf, sepsize);
3880 memmove(buf, sep + 1, bufsize);
3882 sep = memchr(buf, 0, bufsize);
3885 sepsize = sep - buf + 1;
3888 /* git-ls-files just delivers a NUL separated
3889 * list of file names similar to the second half
3890 * of the git-diff-* output. */
3891 string_ncopy(file->new.name, buf, sepsize);
3892 if (!*file->old.name)
3893 string_copy(file->old.name, file->new.name);
3895 memmove(buf, sep + 1, bufsize);
3906 if (!view->line[view->lines - 1].data)
3907 add_line_data(view, NULL, LINE_STAT_NONE);
3913 /* Don't show unmerged entries in the staged section. */
3914 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD"
3915 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
3916 #define STATUS_LIST_OTHER_CMD \
3917 "git ls-files -z --others --exclude-per-directory=.gitignore"
3918 #define STATUS_LIST_NO_HEAD_CMD \
3919 "git ls-files -z --cached --exclude-per-directory=.gitignore"
3921 #define STATUS_DIFF_INDEX_SHOW_CMD \
3922 "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null"
3924 #define STATUS_DIFF_FILES_SHOW_CMD \
3925 "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null"
3927 #define STATUS_DIFF_NO_HEAD_SHOW_CMD \
3928 "git diff --no-color --patch-with-stat /dev/null %s 2>/dev/null"
3930 /* First parse staged info using git-diff-index(1), then parse unstaged
3931 * info using git-diff-files(1), and finally untracked files using
3932 * git-ls-files(1). */
3934 status_open(struct view *view)
3936 struct stat statbuf;
3937 char exclude[SIZEOF_STR];
3938 char indexcmd[SIZEOF_STR] = STATUS_DIFF_INDEX_CMD;
3939 char othercmd[SIZEOF_STR] = STATUS_LIST_OTHER_CMD;
3940 unsigned long prev_lineno = view->lineno;
3941 char indexstatus = 0;
3944 for (i = 0; i < view->lines; i++)
3945 free(view->line[i].data);
3947 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
3950 if (!realloc_lines(view, view->line_size + 7))
3953 add_line_data(view, NULL, LINE_STAT_HEAD);
3955 string_copy(status_onbranch, "Initial commit");
3956 else if (!*opt_head)
3957 string_copy(status_onbranch, "Not currently on any branch");
3958 else if (!string_format(status_onbranch, "On branch %s", opt_head))
3962 string_copy(indexcmd, STATUS_LIST_NO_HEAD_CMD);
3966 if (!string_format(exclude, "%s/info/exclude", opt_git_dir))
3969 if (stat(exclude, &statbuf) >= 0) {
3970 size_t cmdsize = strlen(othercmd);
3972 if (!string_format_from(othercmd, &cmdsize, " %s", "--exclude-from=") ||
3973 sq_quote(othercmd, cmdsize, exclude) >= sizeof(othercmd))
3976 cmdsize = strlen(indexcmd);
3978 (!string_format_from(indexcmd, &cmdsize, " %s", "--exclude-from=") ||
3979 sq_quote(indexcmd, cmdsize, exclude) >= sizeof(indexcmd)))
3983 system("git update-index -q --refresh");
3985 if (!status_run(view, indexcmd, indexstatus, LINE_STAT_STAGED) ||
3986 !status_run(view, STATUS_DIFF_FILES_CMD, 0, LINE_STAT_UNSTAGED) ||
3987 !status_run(view, othercmd, '?', LINE_STAT_UNTRACKED))
3990 /* If all went well restore the previous line number to stay in
3991 * the context or select a line with something that can be
3993 if (prev_lineno >= view->lines)
3994 prev_lineno = view->lines - 1;
3995 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
3997 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4000 /* If the above fails, always skip the "On branch" line. */
4001 if (prev_lineno < view->lines)
4002 view->lineno = prev_lineno;
4006 if (view->lineno < view->offset)
4007 view->offset = view->lineno;
4008 else if (view->offset + view->height <= view->lineno)
4009 view->offset = view->lineno - view->height + 1;
4015 status_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
4017 struct status *status = line->data;
4021 wmove(view->win, lineno, 0);
4024 wattrset(view->win, get_line_attr(LINE_CURSOR));
4025 wchgat(view->win, -1, 0, LINE_CURSOR, NULL);
4027 } else if (line->type == LINE_STAT_HEAD) {
4028 wattrset(view->win, get_line_attr(LINE_STAT_HEAD));
4029 wchgat(view->win, -1, 0, LINE_STAT_HEAD, NULL);
4031 } else if (!status && line->type != LINE_STAT_NONE) {
4032 wattrset(view->win, get_line_attr(LINE_STAT_SECTION));
4033 wchgat(view->win, -1, 0, LINE_STAT_SECTION, NULL);
4036 wattrset(view->win, get_line_attr(line->type));
4040 switch (line->type) {
4041 case LINE_STAT_STAGED:
4042 text = "Changes to be committed:";
4045 case LINE_STAT_UNSTAGED:
4046 text = "Changed but not updated:";
4049 case LINE_STAT_UNTRACKED:
4050 text = "Untracked files:";
4053 case LINE_STAT_NONE:
4054 text = " (no files)";
4057 case LINE_STAT_HEAD:
4058 text = status_onbranch;
4065 char buf[] = { status->status, ' ', ' ', ' ', 0 };
4067 col += draw_text(view, buf, view->width, TRUE, selected);
4069 wattrset(view->win, A_NORMAL);
4070 text = status->new.name;
4073 draw_text(view, text, view->width - col, TRUE, selected);
4078 status_enter(struct view *view, struct line *line)
4080 struct status *status = line->data;
4081 char oldpath[SIZEOF_STR] = "";
4082 char newpath[SIZEOF_STR] = "";
4086 if (line->type == LINE_STAT_NONE ||
4087 (!status && line[1].type == LINE_STAT_NONE)) {
4088 report("No file to diff");
4093 if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath))
4095 /* Diffs for unmerged entries are empty when pasing the
4096 * new path, so leave it empty. */
4097 if (status->status != 'U' &&
4098 sq_quote(newpath, 0, status->new.name) >= sizeof(newpath))
4103 line->type != LINE_STAT_UNTRACKED &&
4104 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
4107 switch (line->type) {
4108 case LINE_STAT_STAGED:
4110 if (!string_format_from(opt_cmd, &cmdsize,
4111 STATUS_DIFF_NO_HEAD_SHOW_CMD,
4115 if (!string_format_from(opt_cmd, &cmdsize,
4116 STATUS_DIFF_INDEX_SHOW_CMD,
4122 info = "Staged changes to %s";
4124 info = "Staged changes";
4127 case LINE_STAT_UNSTAGED:
4128 if (!string_format_from(opt_cmd, &cmdsize,
4129 STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath))
4132 info = "Unstaged changes to %s";
4134 info = "Unstaged changes";
4137 case LINE_STAT_UNTRACKED:
4142 report("No file to show");
4146 opt_pipe = fopen(status->new.name, "r");
4147 info = "Untracked file %s";
4150 case LINE_STAT_HEAD:
4154 die("line type %d not handled in switch", line->type);
4157 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | OPEN_SPLIT);
4158 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4160 stage_status = *status;
4162 memset(&stage_status, 0, sizeof(stage_status));
4165 stage_line_type = line->type;
4166 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4173 status_exists(struct status *status, enum line_type type)
4175 struct view *view = VIEW(REQ_VIEW_STATUS);
4178 for (line = view->line; line < view->line + view->lines; line++) {
4179 struct status *pos = line->data;
4181 if (line->type == type && pos &&
4182 !strcmp(status->new.name, pos->new.name))
4191 status_update_prepare(enum line_type type)
4193 char cmd[SIZEOF_STR];
4197 type != LINE_STAT_UNTRACKED &&
4198 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4202 case LINE_STAT_STAGED:
4203 string_add(cmd, cmdsize, "git update-index -z --index-info");
4206 case LINE_STAT_UNSTAGED:
4207 case LINE_STAT_UNTRACKED:
4208 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
4212 die("line type %d not handled in switch", type);
4215 return popen(cmd, "w");
4219 status_update_write(FILE *pipe, struct status *status, enum line_type type)
4221 char buf[SIZEOF_STR];
4226 case LINE_STAT_STAGED:
4227 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4230 status->old.name, 0))
4234 case LINE_STAT_UNSTAGED:
4235 case LINE_STAT_UNTRACKED:
4236 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4241 die("line type %d not handled in switch", type);
4244 while (!ferror(pipe) && written < bufsize) {
4245 written += fwrite(buf + written, 1, bufsize - written, pipe);
4248 return written == bufsize;
4252 status_update_file(struct status *status, enum line_type type)
4254 FILE *pipe = status_update_prepare(type);
4260 result = status_update_write(pipe, status, type);
4266 status_update_files(struct view *view, struct line *line)
4268 FILE *pipe = status_update_prepare(line->type);
4270 struct line *pos = view->line + view->lines;
4277 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4280 for (file = 0, done = 0; result && file < files; line++, file++) {
4281 int almost_done = file * 100 / files;
4283 if (almost_done > done) {
4285 string_format(view->ref, "updating file %u of %u (%d%% done)",
4287 update_view_title(view);
4289 result = status_update_write(pipe, line->data, line->type);
4297 status_update(struct view *view)
4299 struct line *line = &view->line[view->lineno];
4301 assert(view->lines);
4304 /* This should work even for the "On branch" line. */
4305 if (line < view->line + view->lines && !line[1].data) {
4306 report("Nothing to update");
4310 if (!status_update_files(view, line + 1))
4311 report("Failed to update file status");
4313 } else if (!status_update_file(line->data, line->type)) {
4314 report("Failed to update file status");
4321 status_request(struct view *view, enum request request, struct line *line)
4323 struct status *status = line->data;
4326 case REQ_STATUS_UPDATE:
4327 if (!status_update(view))
4331 case REQ_STATUS_MERGE:
4332 if (!status || status->status != 'U') {
4333 report("Merging only possible for files with unmerged status ('U').");
4336 open_mergetool(status->new.name);
4343 open_editor(status->status != '?', status->new.name);
4346 case REQ_VIEW_BLAME:
4348 string_copy(opt_file, status->new.name);
4354 /* After returning the status view has been split to
4355 * show the stage view. No further reloading is
4357 status_enter(view, line);
4361 /* Simply reload the view. */
4368 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4374 status_select(struct view *view, struct line *line)
4376 struct status *status = line->data;
4377 char file[SIZEOF_STR] = "all files";
4381 if (status && !string_format(file, "'%s'", status->new.name))
4384 if (!status && line[1].type == LINE_STAT_NONE)
4387 switch (line->type) {
4388 case LINE_STAT_STAGED:
4389 text = "Press %s to unstage %s for commit";
4392 case LINE_STAT_UNSTAGED:
4393 text = "Press %s to stage %s for commit";
4396 case LINE_STAT_UNTRACKED:
4397 text = "Press %s to stage %s for addition";
4400 case LINE_STAT_HEAD:
4401 case LINE_STAT_NONE:
4402 text = "Nothing to update";
4406 die("line type %d not handled in switch", line->type);
4409 if (status && status->status == 'U') {
4410 text = "Press %s to resolve conflict in %s";
4411 key = get_key(REQ_STATUS_MERGE);
4414 key = get_key(REQ_STATUS_UPDATE);
4417 string_format(view->ref, text, key, file);
4421 status_grep(struct view *view, struct line *line)
4423 struct status *status = line->data;
4424 enum { S_STATUS, S_NAME, S_END } state;
4431 for (state = S_STATUS; state < S_END; state++) {
4435 case S_NAME: text = status->new.name; break;
4437 buf[0] = status->status;
4445 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4452 static struct view_ops status_ops = {
4464 stage_diff_line(FILE *pipe, struct line *line)
4466 char *buf = line->data;
4467 size_t bufsize = strlen(buf);
4470 while (!ferror(pipe) && written < bufsize) {
4471 written += fwrite(buf + written, 1, bufsize - written, pipe);
4476 return written == bufsize;
4480 stage_diff_write(FILE *pipe, struct line *line, struct line *end)
4482 while (line < end) {
4483 if (!stage_diff_line(pipe, line++))
4485 if (line->type == LINE_DIFF_CHUNK ||
4486 line->type == LINE_DIFF_HEADER)
4493 static struct line *
4494 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4496 for (; view->line < line; line--)
4497 if (line->type == type)
4504 stage_update_chunk(struct view *view, struct line *chunk)
4506 char cmd[SIZEOF_STR];
4508 struct line *diff_hdr;
4511 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4516 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4519 if (!string_format_from(cmd, &cmdsize,
4520 "git apply --whitespace=nowarn --cached %s - && "
4521 "git update-index -q --unmerged --refresh 2>/dev/null",
4522 stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
4525 pipe = popen(cmd, "w");
4529 if (!stage_diff_write(pipe, diff_hdr, chunk) ||
4530 !stage_diff_write(pipe, chunk, view->line + view->lines))
4535 return chunk ? TRUE : FALSE;
4539 stage_update(struct view *view, struct line *line)
4541 struct line *chunk = NULL;
4543 if (!opt_no_head && stage_line_type != LINE_STAT_UNTRACKED)
4544 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4547 if (!stage_update_chunk(view, chunk)) {
4548 report("Failed to apply chunk");
4552 } else if (!status_update_file(&stage_status, stage_line_type)) {
4553 report("Failed to update file");
4561 stage_request(struct view *view, enum request request, struct line *line)
4564 case REQ_STATUS_UPDATE:
4565 stage_update(view, line);
4569 if (!stage_status.new.name[0])
4572 open_editor(stage_status.status != '?', stage_status.new.name);
4576 /* Reload everything ... */
4579 case REQ_VIEW_BLAME:
4580 if (stage_status.new.name[0]) {
4581 string_copy(opt_file, stage_status.new.name);
4587 return pager_request(view, request, line);
4593 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4595 /* Check whether the staged entry still exists, and close the
4596 * stage view if it doesn't. */
4597 if (!status_exists(&stage_status, stage_line_type))
4598 return REQ_VIEW_CLOSE;
4600 if (stage_line_type == LINE_STAT_UNTRACKED)
4601 opt_pipe = fopen(stage_status.new.name, "r");
4603 string_copy(opt_cmd, view->cmd);
4604 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4609 static struct view_ops stage_ops = {
4625 char id[SIZEOF_REV]; /* SHA1 ID. */
4626 char title[128]; /* First line of the commit message. */
4627 char author[75]; /* Author of the commit. */
4628 struct tm time; /* Date from the author ident. */
4629 struct ref **refs; /* Repository references. */
4630 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
4631 size_t graph_size; /* The width of the graph array. */
4632 bool has_parents; /* Rewritten --parents seen. */
4635 /* Size of rev graph with no "padding" columns */
4636 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
4639 struct rev_graph *prev, *next, *parents;
4640 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
4642 struct commit *commit;
4644 unsigned int boundary:1;
4647 /* Parents of the commit being visualized. */
4648 static struct rev_graph graph_parents[4];
4650 /* The current stack of revisions on the graph. */
4651 static struct rev_graph graph_stacks[4] = {
4652 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
4653 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
4654 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
4655 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
4659 graph_parent_is_merge(struct rev_graph *graph)
4661 return graph->parents->size > 1;
4665 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
4667 struct commit *commit = graph->commit;
4669 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
4670 commit->graph[commit->graph_size++] = symbol;
4674 done_rev_graph(struct rev_graph *graph)
4676 if (graph_parent_is_merge(graph) &&
4677 graph->pos < graph->size - 1 &&
4678 graph->next->size == graph->size + graph->parents->size - 1) {
4679 size_t i = graph->pos + graph->parents->size - 1;
4681 graph->commit->graph_size = i * 2;
4682 while (i < graph->next->size - 1) {
4683 append_to_rev_graph(graph, ' ');
4684 append_to_rev_graph(graph, '\\');
4689 graph->size = graph->pos = 0;
4690 graph->commit = NULL;
4691 memset(graph->parents, 0, sizeof(*graph->parents));
4695 push_rev_graph(struct rev_graph *graph, char *parent)
4699 /* "Collapse" duplicate parents lines.
4701 * FIXME: This needs to also update update the drawn graph but
4702 * for now it just serves as a method for pruning graph lines. */
4703 for (i = 0; i < graph->size; i++)
4704 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
4707 if (graph->size < SIZEOF_REVITEMS) {
4708 string_copy_rev(graph->rev[graph->size++], parent);
4713 get_rev_graph_symbol(struct rev_graph *graph)
4717 if (graph->boundary)
4718 symbol = REVGRAPH_BOUND;
4719 else if (graph->parents->size == 0)
4720 symbol = REVGRAPH_INIT;
4721 else if (graph_parent_is_merge(graph))
4722 symbol = REVGRAPH_MERGE;
4723 else if (graph->pos >= graph->size)
4724 symbol = REVGRAPH_BRANCH;
4726 symbol = REVGRAPH_COMMIT;
4732 draw_rev_graph(struct rev_graph *graph)
4735 chtype separator, line;
4737 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
4738 static struct rev_filler fillers[] = {
4739 { ' ', REVGRAPH_LINE },
4744 chtype symbol = get_rev_graph_symbol(graph);
4745 struct rev_filler *filler;
4748 filler = &fillers[DEFAULT];
4750 for (i = 0; i < graph->pos; i++) {
4751 append_to_rev_graph(graph, filler->line);
4752 if (graph_parent_is_merge(graph->prev) &&
4753 graph->prev->pos == i)
4754 filler = &fillers[RSHARP];
4756 append_to_rev_graph(graph, filler->separator);
4759 /* Place the symbol for this revision. */
4760 append_to_rev_graph(graph, symbol);
4762 if (graph->prev->size > graph->size)
4763 filler = &fillers[RDIAG];
4765 filler = &fillers[DEFAULT];
4769 for (; i < graph->size; i++) {
4770 append_to_rev_graph(graph, filler->separator);
4771 append_to_rev_graph(graph, filler->line);
4772 if (graph_parent_is_merge(graph->prev) &&
4773 i < graph->prev->pos + graph->parents->size)
4774 filler = &fillers[RSHARP];
4775 if (graph->prev->size > graph->size)
4776 filler = &fillers[LDIAG];
4779 if (graph->prev->size > graph->size) {
4780 append_to_rev_graph(graph, filler->separator);
4781 if (filler->line != ' ')
4782 append_to_rev_graph(graph, filler->line);
4786 /* Prepare the next rev graph */
4788 prepare_rev_graph(struct rev_graph *graph)
4792 /* First, traverse all lines of revisions up to the active one. */
4793 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
4794 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
4797 push_rev_graph(graph->next, graph->rev[graph->pos]);
4800 /* Interleave the new revision parent(s). */
4801 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
4802 push_rev_graph(graph->next, graph->parents->rev[i]);
4804 /* Lastly, put any remaining revisions. */
4805 for (i = graph->pos + 1; i < graph->size; i++)
4806 push_rev_graph(graph->next, graph->rev[i]);
4810 update_rev_graph(struct rev_graph *graph)
4812 /* If this is the finalizing update ... */
4814 prepare_rev_graph(graph);
4816 /* Graph visualization needs a one rev look-ahead,
4817 * so the first update doesn't visualize anything. */
4818 if (!graph->prev->commit)
4821 draw_rev_graph(graph->prev);
4822 done_rev_graph(graph->prev->prev);
4831 main_draw(struct view *view, struct line *line, unsigned int lineno, bool selected)
4833 char buf[DATE_COLS + 1];
4834 struct commit *commit = line->data;
4835 enum line_type type;
4840 if (!*commit->author)
4843 space = view->width;
4844 wmove(view->win, lineno, col);
4848 wattrset(view->win, get_line_attr(type));
4849 wchgat(view->win, -1, 0, type, NULL);
4851 type = LINE_MAIN_COMMIT;
4852 wattrset(view->win, get_line_attr(LINE_MAIN_DATE));
4858 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time);
4859 n = draw_text(view, buf, view->width - col, FALSE, selected);
4860 draw_text(view, " ", view->width - col - n, FALSE, selected);
4863 wmove(view->win, lineno, col);
4864 if (col >= view->width)
4867 if (type != LINE_CURSOR)
4868 wattrset(view->win, get_line_attr(LINE_MAIN_AUTHOR));
4873 max_len = view->width - col;
4874 if (max_len > AUTHOR_COLS - 1)
4875 max_len = AUTHOR_COLS - 1;
4876 draw_text(view, commit->author, max_len, TRUE, selected);
4878 if (col >= view->width)
4882 if (opt_rev_graph && commit->graph_size) {
4883 size_t graph_size = view->width - col;
4886 if (type != LINE_CURSOR)
4887 wattrset(view->win, get_line_attr(LINE_MAIN_REVGRAPH));
4888 wmove(view->win, lineno, col);
4889 if (graph_size > commit->graph_size)
4890 graph_size = commit->graph_size;
4891 /* Using waddch() instead of waddnstr() ensures that
4892 * they'll be rendered correctly for the cursor line. */
4893 for (i = 0; i < graph_size; i++)
4894 waddch(view->win, commit->graph[i]);
4896 col += commit->graph_size + 1;
4897 if (col >= view->width)
4899 waddch(view->win, ' ');
4901 if (type != LINE_CURSOR)
4902 wattrset(view->win, A_NORMAL);
4904 wmove(view->win, lineno, col);
4906 if (opt_show_refs && commit->refs) {
4910 if (type == LINE_CURSOR)
4912 else if (commit->refs[i]->head)
4913 wattrset(view->win, get_line_attr(LINE_MAIN_HEAD));
4914 else if (commit->refs[i]->ltag)
4915 wattrset(view->win, get_line_attr(LINE_MAIN_LOCAL_TAG));
4916 else if (commit->refs[i]->tag)
4917 wattrset(view->win, get_line_attr(LINE_MAIN_TAG));
4918 else if (commit->refs[i]->tracked)
4919 wattrset(view->win, get_line_attr(LINE_MAIN_TRACKED));
4920 else if (commit->refs[i]->remote)
4921 wattrset(view->win, get_line_attr(LINE_MAIN_REMOTE));
4923 wattrset(view->win, get_line_attr(LINE_MAIN_REF));
4925 col += draw_text(view, "[", view->width - col, TRUE, selected);
4926 col += draw_text(view, commit->refs[i]->name, view->width - col,
4928 col += draw_text(view, "]", view->width - col, TRUE, selected);
4929 if (type != LINE_CURSOR)
4930 wattrset(view->win, A_NORMAL);
4931 col += draw_text(view, " ", view->width - col, TRUE, selected);
4932 if (col >= view->width)
4934 } while (commit->refs[i++]->next);
4937 if (type != LINE_CURSOR)
4938 wattrset(view->win, get_line_attr(type));
4940 draw_text(view, commit->title, view->width - col, TRUE, selected);
4944 /* Reads git log --pretty=raw output and parses it into the commit struct. */
4946 main_read(struct view *view, char *line)
4948 static struct rev_graph *graph = graph_stacks;
4949 enum line_type type;
4950 struct commit *commit;
4953 if (!view->lines && !view->parent)
4954 die("No revisions match the given arguments.");
4955 update_rev_graph(graph);
4959 type = get_line_type(line);
4960 if (type == LINE_COMMIT) {
4961 commit = calloc(1, sizeof(struct commit));
4965 line += STRING_SIZE("commit ");
4967 graph->boundary = 1;
4971 string_copy_rev(commit->id, line);
4972 commit->refs = get_refs(commit->id);
4973 graph->commit = commit;
4974 add_line_data(view, commit, LINE_MAIN_COMMIT);
4976 while ((line = strchr(line, ' '))) {
4978 push_rev_graph(graph->parents, line);
4979 commit->has_parents = TRUE;
4986 commit = view->line[view->lines - 1].data;
4990 if (commit->has_parents)
4992 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
4997 /* Parse author lines where the name may be empty:
4998 * author <email@address.tld> 1138474660 +0100
5000 char *ident = line + STRING_SIZE("author ");
5001 char *nameend = strchr(ident, '<');
5002 char *emailend = strchr(ident, '>');
5004 if (!nameend || !emailend)
5007 update_rev_graph(graph);
5008 graph = graph->next;
5010 *nameend = *emailend = 0;
5011 ident = chomp_string(ident);
5013 ident = chomp_string(nameend + 1);
5018 string_ncopy(commit->author, ident, strlen(ident));
5020 /* Parse epoch and timezone */
5021 if (emailend[1] == ' ') {
5022 char *secs = emailend + 2;
5023 char *zone = strchr(secs, ' ');
5024 time_t time = (time_t) atol(secs);
5026 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5030 tz = ('0' - zone[1]) * 60 * 60 * 10;
5031 tz += ('0' - zone[2]) * 60 * 60;
5032 tz += ('0' - zone[3]) * 60;
5033 tz += ('0' - zone[4]) * 60;
5041 gmtime_r(&time, &commit->time);
5046 /* Fill in the commit title if it has not already been set. */
5047 if (commit->title[0])
5050 /* Require titles to start with a non-space character at the
5051 * offset used by git log. */
5052 if (strncmp(line, " ", 4))
5055 /* Well, if the title starts with a whitespace character,
5056 * try to be forgiving. Otherwise we end up with no title. */
5057 while (isspace(*line))
5061 /* FIXME: More graceful handling of titles; append "..." to
5062 * shortened titles, etc. */
5064 string_ncopy(commit->title, line, strlen(line));
5071 main_request(struct view *view, enum request request, struct line *line)
5073 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5075 if (request == REQ_ENTER)
5076 open_view(view, REQ_VIEW_DIFF, flags);
5084 main_grep(struct view *view, struct line *line)
5086 struct commit *commit = line->data;
5087 enum { S_TITLE, S_AUTHOR, S_DATE, S_END } state;
5088 char buf[DATE_COLS + 1];
5091 for (state = S_TITLE; state < S_END; state++) {
5095 case S_TITLE: text = commit->title; break;
5096 case S_AUTHOR: text = commit->author; break;
5098 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5107 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5115 main_select(struct view *view, struct line *line)
5117 struct commit *commit = line->data;
5119 string_copy_rev(view->ref, commit->id);
5120 string_copy_rev(ref_commit, view->ref);
5123 static struct view_ops main_ops = {
5135 * Unicode / UTF-8 handling
5137 * NOTE: Much of the following code for dealing with unicode is derived from
5138 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5139 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5142 /* I've (over)annotated a lot of code snippets because I am not entirely
5143 * confident that the approach taken by this small UTF-8 interface is correct.
5147 unicode_width(unsigned long c)
5150 (c <= 0x115f /* Hangul Jamo */
5153 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5155 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5156 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5157 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5158 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5159 || (c >= 0xffe0 && c <= 0xffe6)
5160 || (c >= 0x20000 && c <= 0x2fffd)
5161 || (c >= 0x30000 && c <= 0x3fffd)))
5165 return opt_tab_size;
5170 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5171 * Illegal bytes are set one. */
5172 static const unsigned char utf8_bytes[256] = {
5173 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5174 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5175 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5176 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,
5177 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,
5178 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,
5179 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,
5180 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,
5183 /* Decode UTF-8 multi-byte representation into a unicode character. */
5184 static inline unsigned long
5185 utf8_to_unicode(const char *string, size_t length)
5187 unsigned long unicode;
5191 unicode = string[0];
5194 unicode = (string[0] & 0x1f) << 6;
5195 unicode += (string[1] & 0x3f);
5198 unicode = (string[0] & 0x0f) << 12;
5199 unicode += ((string[1] & 0x3f) << 6);
5200 unicode += (string[2] & 0x3f);
5203 unicode = (string[0] & 0x0f) << 18;
5204 unicode += ((string[1] & 0x3f) << 12);
5205 unicode += ((string[2] & 0x3f) << 6);
5206 unicode += (string[3] & 0x3f);
5209 unicode = (string[0] & 0x0f) << 24;
5210 unicode += ((string[1] & 0x3f) << 18);
5211 unicode += ((string[2] & 0x3f) << 12);
5212 unicode += ((string[3] & 0x3f) << 6);
5213 unicode += (string[4] & 0x3f);
5216 unicode = (string[0] & 0x01) << 30;
5217 unicode += ((string[1] & 0x3f) << 24);
5218 unicode += ((string[2] & 0x3f) << 18);
5219 unicode += ((string[3] & 0x3f) << 12);
5220 unicode += ((string[4] & 0x3f) << 6);
5221 unicode += (string[5] & 0x3f);
5224 die("Invalid unicode length");
5227 /* Invalid characters could return the special 0xfffd value but NUL
5228 * should be just as good. */
5229 return unicode > 0xffff ? 0 : unicode;
5232 /* Calculates how much of string can be shown within the given maximum width
5233 * and sets trimmed parameter to non-zero value if all of string could not be
5234 * shown. If the reserve flag is TRUE, it will reserve at least one
5235 * trailing character, which can be useful when drawing a delimiter.
5237 * Returns the number of bytes to output from string to satisfy max_width. */
5239 utf8_length(const char *string, size_t max_width, int *trimmed, bool reserve)
5241 const char *start = string;
5242 const char *end = strchr(string, '\0');
5243 unsigned char last_bytes = 0;
5248 while (string < end) {
5249 int c = *(unsigned char *) string;
5250 unsigned char bytes = utf8_bytes[c];
5252 unsigned long unicode;
5254 if (string + bytes > end)
5257 /* Change representation to figure out whether
5258 * it is a single- or double-width character. */
5260 unicode = utf8_to_unicode(string, bytes);
5261 /* FIXME: Graceful handling of invalid unicode character. */
5265 ucwidth = unicode_width(unicode);
5267 if (width > max_width) {
5269 if (reserve && width - ucwidth == max_width) {
5270 string -= last_bytes;
5279 return string - start;
5287 /* Whether or not the curses interface has been initialized. */
5288 static bool cursed = FALSE;
5290 /* The status window is used for polling keystrokes. */
5291 static WINDOW *status_win;
5293 static bool status_empty = TRUE;
5295 /* Update status and title window. */
5297 report(const char *msg, ...)
5299 struct view *view = display[current_view];
5305 char buf[SIZEOF_STR];
5308 va_start(args, msg);
5309 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5310 buf[sizeof(buf) - 1] = 0;
5311 buf[sizeof(buf) - 2] = '.';
5312 buf[sizeof(buf) - 3] = '.';
5313 buf[sizeof(buf) - 4] = '.';
5319 if (!status_empty || *msg) {
5322 va_start(args, msg);
5324 wmove(status_win, 0, 0);
5326 vwprintw(status_win, msg, args);
5327 status_empty = FALSE;
5329 status_empty = TRUE;
5331 wclrtoeol(status_win);
5332 wrefresh(status_win);
5337 update_view_title(view);
5338 update_display_cursor(view);
5341 /* Controls when nodelay should be in effect when polling user input. */
5343 set_nonblocking_input(bool loading)
5345 static unsigned int loading_views;
5347 if ((loading == FALSE && loading_views-- == 1) ||
5348 (loading == TRUE && loading_views++ == 0))
5349 nodelay(status_win, loading);
5357 /* Initialize the curses library */
5358 if (isatty(STDIN_FILENO)) {
5359 cursed = !!initscr();
5361 /* Leave stdin and stdout alone when acting as a pager. */
5362 FILE *io = fopen("/dev/tty", "r+");
5365 die("Failed to open /dev/tty");
5366 cursed = !!newterm(NULL, io, io);
5370 die("Failed to initialize curses");
5372 nonl(); /* Tell curses not to do NL->CR/NL on output */
5373 cbreak(); /* Take input chars one at a time, no wait for \n */
5374 noecho(); /* Don't echo input */
5375 leaveok(stdscr, TRUE);
5380 getmaxyx(stdscr, y, x);
5381 status_win = newwin(1, 0, y - 1, 0);
5383 die("Failed to create status window");
5385 /* Enable keyboard mapping */
5386 keypad(status_win, TRUE);
5387 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5391 read_prompt(const char *prompt)
5393 enum { READING, STOP, CANCEL } status = READING;
5394 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
5397 while (status == READING) {
5403 foreach_view (view, i)
5408 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5409 wclrtoeol(status_win);
5411 /* Refresh, accept single keystroke of input */
5412 key = wgetch(status_win);
5417 status = pos ? STOP : CANCEL;
5435 if (pos >= sizeof(buf)) {
5436 report("Input string too long");
5441 buf[pos++] = (char) key;
5445 /* Clear the status window */
5446 status_empty = FALSE;
5449 if (status == CANCEL)
5458 * Repository references
5461 static struct ref *refs = NULL;
5462 static size_t refs_alloc = 0;
5463 static size_t refs_size = 0;
5465 /* Id <-> ref store */
5466 static struct ref ***id_refs = NULL;
5467 static size_t id_refs_alloc = 0;
5468 static size_t id_refs_size = 0;
5470 static struct ref **
5473 struct ref ***tmp_id_refs;
5474 struct ref **ref_list = NULL;
5475 size_t ref_list_alloc = 0;
5476 size_t ref_list_size = 0;
5479 for (i = 0; i < id_refs_size; i++)
5480 if (!strcmp(id, id_refs[i][0]->id))
5483 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
5488 id_refs = tmp_id_refs;
5490 for (i = 0; i < refs_size; i++) {
5493 if (strcmp(id, refs[i].id))
5496 tmp = realloc_items(ref_list, &ref_list_alloc,
5497 ref_list_size + 1, sizeof(*ref_list));
5505 if (ref_list_size > 0)
5506 ref_list[ref_list_size - 1]->next = 1;
5507 ref_list[ref_list_size] = &refs[i];
5509 /* XXX: The properties of the commit chains ensures that we can
5510 * safely modify the shared ref. The repo references will
5511 * always be similar for the same id. */
5512 ref_list[ref_list_size]->next = 0;
5517 id_refs[id_refs_size++] = ref_list;
5523 read_ref(char *id, size_t idlen, char *name, size_t namelen)
5528 bool remote = FALSE;
5529 bool tracked = FALSE;
5530 bool check_replace = FALSE;
5533 if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) {
5534 if (!strcmp(name + namelen - 3, "^{}")) {
5537 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
5538 check_replace = TRUE;
5544 namelen -= STRING_SIZE("refs/tags/");
5545 name += STRING_SIZE("refs/tags/");
5547 } else if (!strncmp(name, "refs/remotes/", STRING_SIZE("refs/remotes/"))) {
5549 namelen -= STRING_SIZE("refs/remotes/");
5550 name += STRING_SIZE("refs/remotes/");
5551 tracked = !strcmp(opt_remote, name);
5553 } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5554 namelen -= STRING_SIZE("refs/heads/");
5555 name += STRING_SIZE("refs/heads/");
5556 head = !strncmp(opt_head, name, namelen);
5558 } else if (!strcmp(name, "HEAD")) {
5559 opt_no_head = FALSE;
5563 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
5564 /* it's an annotated tag, replace the previous sha1 with the
5565 * resolved commit id; relies on the fact git-ls-remote lists
5566 * the commit id of an annotated tag right beofre the commit id
5568 refs[refs_size - 1].ltag = ltag;
5569 string_copy_rev(refs[refs_size - 1].id, id);
5573 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
5577 ref = &refs[refs_size++];
5578 ref->name = malloc(namelen + 1);
5582 strncpy(ref->name, name, namelen);
5583 ref->name[namelen] = 0;
5587 ref->remote = remote;
5588 ref->tracked = tracked;
5589 string_copy_rev(ref->id, id);
5597 const char *cmd_env = getenv("TIG_LS_REMOTE");
5598 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
5600 return read_properties(popen(cmd, "r"), "\t", read_ref);
5604 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
5606 if (!strcmp(name, "i18n.commitencoding"))
5607 string_ncopy(opt_encoding, value, valuelen);
5609 if (!strcmp(name, "core.editor"))
5610 string_ncopy(opt_editor, value, valuelen);
5612 /* branch.<head>.remote */
5614 !strncmp(name, "branch.", 7) &&
5615 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5616 !strcmp(name + 7 + strlen(opt_head), ".remote"))
5617 string_ncopy(opt_remote, value, valuelen);
5619 if (*opt_head && *opt_remote &&
5620 !strncmp(name, "branch.", 7) &&
5621 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5622 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
5623 size_t from = strlen(opt_remote);
5625 if (!strncmp(value, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5626 value += STRING_SIZE("refs/heads/");
5627 valuelen -= STRING_SIZE("refs/heads/");
5630 if (!string_format_from(opt_remote, &from, "/%s", value))
5638 load_git_config(void)
5640 return read_properties(popen(GIT_CONFIG " --list", "r"),
5641 "=", read_repo_config_option);
5645 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
5647 if (!opt_git_dir[0]) {
5648 string_ncopy(opt_git_dir, name, namelen);
5650 } else if (opt_is_inside_work_tree == -1) {
5651 /* This can be 3 different values depending on the
5652 * version of git being used. If git-rev-parse does not
5653 * understand --is-inside-work-tree it will simply echo
5654 * the option else either "true" or "false" is printed.
5655 * Default to true for the unknown case. */
5656 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
5658 } else if (opt_cdup[0] == ' ') {
5659 string_ncopy(opt_cdup, name, namelen);
5661 if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5662 namelen -= STRING_SIZE("refs/heads/");
5663 name += STRING_SIZE("refs/heads/");
5664 string_ncopy(opt_head, name, namelen);
5672 load_repo_info(void)
5675 FILE *pipe = popen("(git rev-parse --git-dir --is-inside-work-tree "
5676 " --show-cdup; git symbolic-ref HEAD) 2>/dev/null", "r");
5678 /* XXX: The line outputted by "--show-cdup" can be empty so
5679 * initialize it to something invalid to make it possible to
5680 * detect whether it has been set or not. */
5683 result = read_properties(pipe, "=", read_repo_info);
5684 if (opt_cdup[0] == ' ')
5691 read_properties(FILE *pipe, const char *separators,
5692 int (*read_property)(char *, size_t, char *, size_t))
5694 char buffer[BUFSIZ];
5701 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
5706 name = chomp_string(name);
5707 namelen = strcspn(name, separators);
5709 if (name[namelen]) {
5711 value = chomp_string(name + namelen + 1);
5712 valuelen = strlen(value);
5719 state = read_property(name, namelen, value, valuelen);
5722 if (state != ERR && ferror(pipe))
5735 static void __NORETURN
5738 /* XXX: Restore tty modes and let the OS cleanup the rest! */
5744 static void __NORETURN
5745 die(const char *err, ...)
5751 va_start(args, err);
5752 fputs("tig: ", stderr);
5753 vfprintf(stderr, err, args);
5754 fputs("\n", stderr);
5761 warn(const char *msg, ...)
5765 va_start(args, msg);
5766 fputs("tig warning: ", stderr);
5767 vfprintf(stderr, msg, args);
5768 fputs("\n", stderr);
5773 main(int argc, char *argv[])
5776 enum request request;
5779 signal(SIGINT, quit);
5781 if (setlocale(LC_ALL, "")) {
5782 char *codeset = nl_langinfo(CODESET);
5784 string_ncopy(opt_codeset, codeset, strlen(codeset));
5787 if (load_repo_info() == ERR)
5788 die("Failed to load repo info.");
5790 if (load_options() == ERR)
5791 die("Failed to load user config.");
5793 if (load_git_config() == ERR)
5794 die("Failed to load repo config.");
5796 if (!parse_options(argc, argv))
5799 /* Require a git repository unless when running in pager mode. */
5800 if (!opt_git_dir[0] && opt_request != REQ_VIEW_PAGER)
5801 die("Not a git repository");
5803 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
5806 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
5807 opt_iconv = iconv_open(opt_codeset, opt_encoding);
5808 if (opt_iconv == ICONV_NONE)
5809 die("Failed to initialize character set conversion");
5812 if (*opt_git_dir && load_refs() == ERR)
5813 die("Failed to load refs.");
5815 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
5816 view->cmd_env = getenv(view->cmd_env);
5818 request = opt_request;
5822 while (view_driver(display[current_view], request)) {
5826 foreach_view (view, i)
5829 /* Refresh, accept single keystroke of input */
5830 key = wgetch(status_win);
5832 /* wgetch() with nodelay() enabled returns ERR when there's no
5839 request = get_keybinding(display[current_view]->keymap, key);
5841 /* Some low-level request handling. This keeps access to
5842 * status_win restricted. */
5846 char *cmd = read_prompt(":");
5848 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
5849 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
5850 opt_request = REQ_VIEW_DIFF;
5852 opt_request = REQ_VIEW_PAGER;
5861 case REQ_SEARCH_BACK:
5863 const char *prompt = request == REQ_SEARCH
5865 char *search = read_prompt(prompt);
5868 string_ncopy(opt_search, search, strlen(search));
5873 case REQ_SCREEN_RESIZE:
5877 getmaxyx(stdscr, height, width);
5879 /* Resize the status view and let the view driver take
5880 * care of resizing the displayed views. */
5881 wresize(status_win, 1, width);
5882 mvwin(status_win, height - 1, 0);
5883 wrefresh(status_win);