1 /* Copyright (c) 2006-2008 Jonas Fonseca <fonseca@diku.dk>
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License as
5 * published by the Free Software Foundation; either version 2 of
6 * the License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
19 #define TIG_VERSION "unknown-version"
34 #include <sys/types.h>
45 /* ncurses(3): Must be defined to have extended wide-character functions. */
46 #define _XOPEN_SOURCE_EXTENDED
51 #define __NORETURN __attribute__((__noreturn__))
56 static void __NORETURN die(const char *err, ...);
57 static void warn(const char *msg, ...);
58 static void report(const char *msg, ...);
59 static int read_properties(FILE *pipe, const char *separators, int (*read)(char *, size_t, char *, size_t));
60 static void set_nonblocking_input(bool loading);
61 static size_t utf8_length(const char *string, size_t max_width, int *trimmed, bool reserve);
63 #define ABS(x) ((x) >= 0 ? (x) : -(x))
64 #define MIN(x, y) ((x) < (y) ? (x) : (y))
66 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
67 #define STRING_SIZE(x) (sizeof(x) - 1)
69 #define SIZEOF_STR 1024 /* Default string size. */
70 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
71 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL */
75 #define REVGRAPH_INIT 'I'
76 #define REVGRAPH_MERGE 'M'
77 #define REVGRAPH_BRANCH '+'
78 #define REVGRAPH_COMMIT '*'
79 #define REVGRAPH_BOUND '^'
81 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
83 /* This color name can be used to refer to the default term colors. */
84 #define COLOR_DEFAULT (-1)
86 #define ICONV_NONE ((iconv_t) -1)
88 #define ICONV_CONST /* nothing */
91 /* The format and size of the date column in the main view. */
92 #define DATE_FORMAT "%Y-%m-%d %H:%M"
93 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
95 #define AUTHOR_COLS 20
98 /* The default interval between line numbers. */
99 #define NUMBER_INTERVAL 5
103 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
105 #define NULL_ID "0000000000000000000000000000000000000000"
108 #define GIT_CONFIG "git config"
111 #define TIG_LS_REMOTE \
112 "git ls-remote $(git rev-parse --git-dir) 2>/dev/null"
114 #define TIG_DIFF_CMD \
115 "git show --pretty=fuller --no-color --root --patch-with-stat --find-copies-harder -C %s 2>/dev/null"
117 #define TIG_LOG_CMD \
118 "git log --no-color --cc --stat -n100 %s 2>/dev/null"
120 #define TIG_MAIN_CMD \
121 "git log --no-color --topo-order --parents --boundary --pretty=raw %s 2>/dev/null"
123 #define TIG_TREE_CMD \
126 #define TIG_BLOB_CMD \
127 "git cat-file blob %s"
129 /* XXX: Needs to be defined to the empty string. */
130 #define TIG_HELP_CMD ""
131 #define TIG_PAGER_CMD ""
132 #define TIG_STATUS_CMD ""
133 #define TIG_STAGE_CMD ""
134 #define TIG_BLAME_CMD ""
136 /* Some ascii-shorthands fitted into the ncurses namespace. */
138 #define KEY_RETURN '\r'
143 char *name; /* Ref name; tag or head names are shortened. */
144 char id[SIZEOF_REV]; /* Commit SHA1 ID */
145 unsigned int head:1; /* Is it the current HEAD? */
146 unsigned int tag:1; /* Is it a tag? */
147 unsigned int ltag:1; /* If so, is the tag local? */
148 unsigned int remote:1; /* Is it a remote ref? */
149 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
150 unsigned int next:1; /* For ref lists: are there more refs? */
153 static struct ref **get_refs(char *id);
162 set_from_int_map(struct int_map *map, size_t map_size,
163 int *value, const char *name, int namelen)
168 for (i = 0; i < map_size; i++)
169 if (namelen == map[i].namelen &&
170 !strncasecmp(name, map[i].name, namelen)) {
171 *value = map[i].value;
184 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
186 if (srclen > dstlen - 1)
189 strncpy(dst, src, srclen);
193 /* Shorthands for safely copying into a fixed buffer. */
195 #define string_copy(dst, src) \
196 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
198 #define string_ncopy(dst, src, srclen) \
199 string_ncopy_do(dst, sizeof(dst), src, srclen)
201 #define string_copy_rev(dst, src) \
202 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
204 #define string_add(dst, from, src) \
205 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
208 chomp_string(char *name)
212 while (isspace(*name))
215 namelen = strlen(name) - 1;
216 while (namelen > 0 && isspace(name[namelen]))
223 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
226 size_t pos = bufpos ? *bufpos : 0;
229 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
235 return pos >= bufsize ? FALSE : TRUE;
238 #define string_format(buf, fmt, args...) \
239 string_nformat(buf, sizeof(buf), NULL, fmt, args)
241 #define string_format_from(buf, from, fmt, args...) \
242 string_nformat(buf, sizeof(buf), from, fmt, args)
245 string_enum_compare(const char *str1, const char *str2, int len)
249 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
251 /* Diff-Header == DIFF_HEADER */
252 for (i = 0; i < len; i++) {
253 if (toupper(str1[i]) == toupper(str2[i]))
256 if (string_enum_sep(str1[i]) &&
257 string_enum_sep(str2[i]))
260 return str1[i] - str2[i];
268 * NOTE: The following is a slightly modified copy of the git project's shell
269 * quoting routines found in the quote.c file.
271 * Help to copy the thing properly quoted for the shell safety. any single
272 * quote is replaced with '\'', any exclamation point is replaced with '\!',
273 * and the whole thing is enclosed in a
276 * original sq_quote result
277 * name ==> name ==> 'name'
278 * a b ==> a b ==> 'a b'
279 * a'b ==> a'\''b ==> 'a'\''b'
280 * a!b ==> a'\!'b ==> 'a'\!'b'
284 sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src)
288 #define BUFPUT(x) do { if (bufsize < SIZEOF_STR) buf[bufsize++] = (x); } while (0)
291 while ((c = *src++)) {
292 if (c == '\'' || c == '!') {
303 if (bufsize < SIZEOF_STR)
315 /* XXX: Keep the view request first and in sync with views[]. */ \
316 REQ_GROUP("View switching") \
317 REQ_(VIEW_MAIN, "Show main view"), \
318 REQ_(VIEW_DIFF, "Show diff view"), \
319 REQ_(VIEW_LOG, "Show log view"), \
320 REQ_(VIEW_TREE, "Show tree view"), \
321 REQ_(VIEW_BLOB, "Show blob view"), \
322 REQ_(VIEW_BLAME, "Show blame view"), \
323 REQ_(VIEW_HELP, "Show help page"), \
324 REQ_(VIEW_PAGER, "Show pager view"), \
325 REQ_(VIEW_STATUS, "Show status view"), \
326 REQ_(VIEW_STAGE, "Show stage view"), \
328 REQ_GROUP("View manipulation") \
329 REQ_(ENTER, "Enter current line and scroll"), \
330 REQ_(NEXT, "Move to next"), \
331 REQ_(PREVIOUS, "Move to previous"), \
332 REQ_(VIEW_NEXT, "Move focus to next view"), \
333 REQ_(REFRESH, "Reload and refresh"), \
334 REQ_(MAXIMIZE, "Maximize the current view"), \
335 REQ_(VIEW_CLOSE, "Close the current view"), \
336 REQ_(QUIT, "Close all views and quit"), \
338 REQ_GROUP("Cursor navigation") \
339 REQ_(MOVE_UP, "Move cursor one line up"), \
340 REQ_(MOVE_DOWN, "Move cursor one line down"), \
341 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
342 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
343 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
344 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
346 REQ_GROUP("Scrolling") \
347 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
348 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
349 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
350 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
352 REQ_GROUP("Searching") \
353 REQ_(SEARCH, "Search the view"), \
354 REQ_(SEARCH_BACK, "Search backwards in the view"), \
355 REQ_(FIND_NEXT, "Find next search match"), \
356 REQ_(FIND_PREV, "Find previous search match"), \
359 REQ_(PROMPT, "Bring up the prompt"), \
360 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
361 REQ_(SCREEN_RESIZE, "Resize the screen"), \
362 REQ_(SHOW_VERSION, "Show version information"), \
363 REQ_(STOP_LOADING, "Stop all loading views"), \
364 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
365 REQ_(TOGGLE_DATE, "Toggle date display"), \
366 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
367 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
368 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
369 REQ_(STATUS_UPDATE, "Update file status"), \
370 REQ_(STATUS_MERGE, "Merge file using external tool"), \
371 REQ_(TREE_PARENT, "Switch to parent directory in tree view"), \
372 REQ_(EDIT, "Open in editor"), \
373 REQ_(NONE, "Do nothing")
376 /* User action requests. */
378 #define REQ_GROUP(help)
379 #define REQ_(req, help) REQ_##req
381 /* Offset all requests to avoid conflicts with ncurses getch values. */
382 REQ_OFFSET = KEY_MAX + 1,
389 struct request_info {
390 enum request request;
396 static struct request_info req_info[] = {
397 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
398 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
405 get_request(const char *name)
407 int namelen = strlen(name);
410 for (i = 0; i < ARRAY_SIZE(req_info); i++)
411 if (req_info[i].namelen == namelen &&
412 !string_enum_compare(req_info[i].name, name, namelen))
413 return req_info[i].request;
423 static const char usage[] =
424 "tig " TIG_VERSION " (" __DATE__ ")\n"
426 "Usage: tig [options] [revs] [--] [paths]\n"
427 " or: tig show [options] [revs] [--] [paths]\n"
428 " or: tig blame [rev] path\n"
430 " or: tig < [git command output]\n"
433 " -v, --version Show version and exit\n"
434 " -h, --help Show help message and exit";
436 /* Option and state variables. */
437 static bool opt_date = TRUE;
438 static bool opt_author = TRUE;
439 static bool opt_line_number = FALSE;
440 static bool opt_line_graphics = TRUE;
441 static bool opt_rev_graph = FALSE;
442 static bool opt_show_refs = TRUE;
443 static int opt_num_interval = NUMBER_INTERVAL;
444 static int opt_tab_size = TAB_SIZE;
445 static enum request opt_request = REQ_VIEW_MAIN;
446 static char opt_cmd[SIZEOF_STR] = "";
447 static char opt_path[SIZEOF_STR] = "";
448 static char opt_file[SIZEOF_STR] = "";
449 static char opt_ref[SIZEOF_REF] = "";
450 static char opt_head[SIZEOF_REF] = "";
451 static char opt_remote[SIZEOF_REF] = "";
452 static bool opt_no_head = TRUE;
453 static FILE *opt_pipe = NULL;
454 static char opt_encoding[20] = "UTF-8";
455 static bool opt_utf8 = TRUE;
456 static char opt_codeset[20] = "UTF-8";
457 static iconv_t opt_iconv = ICONV_NONE;
458 static char opt_search[SIZEOF_STR] = "";
459 static char opt_cdup[SIZEOF_STR] = "";
460 static char opt_git_dir[SIZEOF_STR] = "";
461 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
462 static char opt_editor[SIZEOF_STR] = "";
465 parse_options(int argc, char *argv[])
469 bool seen_dashdash = FALSE;
472 if (!isatty(STDIN_FILENO)) {
473 opt_request = REQ_VIEW_PAGER;
481 subcommand = argv[1];
482 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
483 opt_request = REQ_VIEW_STATUS;
484 if (!strcmp(subcommand, "-S"))
485 warn("`-S' has been deprecated; use `tig status' instead");
487 warn("ignoring arguments after `%s'", subcommand);
490 } else if (!strcmp(subcommand, "blame")) {
491 opt_request = REQ_VIEW_BLAME;
492 if (argc <= 2 || argc > 4)
493 die("invalid number of options to blame\n\n%s", usage);
497 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
501 string_ncopy(opt_file, argv[i], strlen(argv[i]));
504 } else if (!strcmp(subcommand, "show")) {
505 opt_request = REQ_VIEW_DIFF;
507 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
508 opt_request = subcommand[0] == 'l'
509 ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
510 warn("`tig %s' has been deprecated", subcommand);
517 /* XXX: This is vulnerable to the user overriding
518 * options required for the main view parser. */
519 string_copy(opt_cmd, "git log --no-color --pretty=raw --boundary --parents");
521 string_format(opt_cmd, "git %s", subcommand);
523 buf_size = strlen(opt_cmd);
525 for (i = 1 + !!subcommand; i < argc; i++) {
528 if (seen_dashdash || !strcmp(opt, "--")) {
529 seen_dashdash = TRUE;
531 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
532 printf("tig version %s\n", TIG_VERSION);
535 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
536 printf("%s\n", usage);
540 opt_cmd[buf_size++] = ' ';
541 buf_size = sq_quote(opt_cmd, buf_size, opt);
542 if (buf_size >= sizeof(opt_cmd))
543 die("command too long");
546 opt_cmd[buf_size] = 0;
553 * Line-oriented content detection.
557 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
558 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
559 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
560 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
561 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
562 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
563 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
564 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
565 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
566 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
567 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
568 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
569 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
570 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
571 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
572 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
573 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
574 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
575 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
576 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
577 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
578 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
579 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
580 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
581 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
582 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
583 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
584 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
585 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
586 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
587 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
588 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
589 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
590 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
591 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
592 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
593 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
594 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
595 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
596 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
597 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
598 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
599 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
600 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
601 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
602 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
603 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
604 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
605 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
606 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
607 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
608 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
609 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
610 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
613 #define LINE(type, line, fg, bg, attr) \
621 const char *name; /* Option name. */
622 int namelen; /* Size of option name. */
623 const char *line; /* The start of line to match. */
624 int linelen; /* Size of string to match. */
625 int fg, bg, attr; /* Color and text attributes for the lines. */
628 static struct line_info line_info[] = {
629 #define LINE(type, line, fg, bg, attr) \
630 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
635 static enum line_type
636 get_line_type(char *line)
638 int linelen = strlen(line);
641 for (type = 0; type < ARRAY_SIZE(line_info); type++)
642 /* Case insensitive search matches Signed-off-by lines better. */
643 if (linelen >= line_info[type].linelen &&
644 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
651 get_line_attr(enum line_type type)
653 assert(type < ARRAY_SIZE(line_info));
654 return COLOR_PAIR(type) | line_info[type].attr;
657 static struct line_info *
658 get_line_info(char *name)
660 size_t namelen = strlen(name);
663 for (type = 0; type < ARRAY_SIZE(line_info); type++)
664 if (namelen == line_info[type].namelen &&
665 !string_enum_compare(line_info[type].name, name, namelen))
666 return &line_info[type];
674 int default_bg = line_info[LINE_DEFAULT].bg;
675 int default_fg = line_info[LINE_DEFAULT].fg;
680 if (assume_default_colors(default_fg, default_bg) == ERR) {
681 default_bg = COLOR_BLACK;
682 default_fg = COLOR_WHITE;
685 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
686 struct line_info *info = &line_info[type];
687 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
688 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
690 init_pair(type, fg, bg);
698 unsigned int selected:1;
699 unsigned int dirty:1;
701 void *data; /* User data */
711 enum request request;
712 struct keybinding *next;
715 static struct keybinding default_keybindings[] = {
717 { 'm', REQ_VIEW_MAIN },
718 { 'd', REQ_VIEW_DIFF },
719 { 'l', REQ_VIEW_LOG },
720 { 't', REQ_VIEW_TREE },
721 { 'f', REQ_VIEW_BLOB },
722 { 'B', REQ_VIEW_BLAME },
723 { 'p', REQ_VIEW_PAGER },
724 { 'h', REQ_VIEW_HELP },
725 { 'S', REQ_VIEW_STATUS },
726 { 'c', REQ_VIEW_STAGE },
728 /* View manipulation */
729 { 'q', REQ_VIEW_CLOSE },
730 { KEY_TAB, REQ_VIEW_NEXT },
731 { KEY_RETURN, REQ_ENTER },
732 { KEY_UP, REQ_PREVIOUS },
733 { KEY_DOWN, REQ_NEXT },
734 { 'R', REQ_REFRESH },
735 { KEY_F(5), REQ_REFRESH },
736 { 'O', REQ_MAXIMIZE },
738 /* Cursor navigation */
739 { 'k', REQ_MOVE_UP },
740 { 'j', REQ_MOVE_DOWN },
741 { KEY_HOME, REQ_MOVE_FIRST_LINE },
742 { KEY_END, REQ_MOVE_LAST_LINE },
743 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
744 { ' ', REQ_MOVE_PAGE_DOWN },
745 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
746 { 'b', REQ_MOVE_PAGE_UP },
747 { '-', REQ_MOVE_PAGE_UP },
750 { KEY_IC, REQ_SCROLL_LINE_UP },
751 { KEY_DC, REQ_SCROLL_LINE_DOWN },
752 { 'w', REQ_SCROLL_PAGE_UP },
753 { 's', REQ_SCROLL_PAGE_DOWN },
757 { '?', REQ_SEARCH_BACK },
758 { 'n', REQ_FIND_NEXT },
759 { 'N', REQ_FIND_PREV },
763 { 'z', REQ_STOP_LOADING },
764 { 'v', REQ_SHOW_VERSION },
765 { 'r', REQ_SCREEN_REDRAW },
766 { '.', REQ_TOGGLE_LINENO },
767 { 'D', REQ_TOGGLE_DATE },
768 { 'A', REQ_TOGGLE_AUTHOR },
769 { 'g', REQ_TOGGLE_REV_GRAPH },
770 { 'F', REQ_TOGGLE_REFS },
772 { 'u', REQ_STATUS_UPDATE },
773 { 'M', REQ_STATUS_MERGE },
774 { ',', REQ_TREE_PARENT },
777 /* Using the ncurses SIGWINCH handler. */
778 { KEY_RESIZE, REQ_SCREEN_RESIZE },
781 #define KEYMAP_INFO \
795 #define KEYMAP_(name) KEYMAP_##name
800 static struct int_map keymap_table[] = {
801 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
806 #define set_keymap(map, name) \
807 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
809 static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)];
812 add_keybinding(enum keymap keymap, enum request request, int key)
814 struct keybinding *keybinding;
816 keybinding = calloc(1, sizeof(*keybinding));
818 die("Failed to allocate keybinding");
820 keybinding->alias = key;
821 keybinding->request = request;
822 keybinding->next = keybindings[keymap];
823 keybindings[keymap] = keybinding;
826 /* Looks for a key binding first in the given map, then in the generic map, and
827 * lastly in the default keybindings. */
829 get_keybinding(enum keymap keymap, int key)
831 struct keybinding *kbd;
834 for (kbd = keybindings[keymap]; kbd; kbd = kbd->next)
835 if (kbd->alias == key)
838 for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next)
839 if (kbd->alias == key)
842 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
843 if (default_keybindings[i].alias == key)
844 return default_keybindings[i].request;
846 return (enum request) key;
855 static struct key key_table[] = {
856 { "Enter", KEY_RETURN },
858 { "Backspace", KEY_BACKSPACE },
860 { "Escape", KEY_ESC },
861 { "Left", KEY_LEFT },
862 { "Right", KEY_RIGHT },
864 { "Down", KEY_DOWN },
865 { "Insert", KEY_IC },
866 { "Delete", KEY_DC },
868 { "Home", KEY_HOME },
870 { "PageUp", KEY_PPAGE },
871 { "PageDown", KEY_NPAGE },
881 { "F10", KEY_F(10) },
882 { "F11", KEY_F(11) },
883 { "F12", KEY_F(12) },
887 get_key_value(const char *name)
891 for (i = 0; i < ARRAY_SIZE(key_table); i++)
892 if (!strcasecmp(key_table[i].name, name))
893 return key_table[i].value;
895 if (strlen(name) == 1 && isprint(*name))
902 get_key_name(int key_value)
904 static char key_char[] = "'X'";
908 for (key = 0; key < ARRAY_SIZE(key_table); key++)
909 if (key_table[key].value == key_value)
910 seq = key_table[key].name;
914 isprint(key_value)) {
915 key_char[1] = (char) key_value;
919 return seq ? seq : "'?'";
923 get_key(enum request request)
925 static char buf[BUFSIZ];
932 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
933 struct keybinding *keybinding = &default_keybindings[i];
935 if (keybinding->request != request)
938 if (!string_format_from(buf, &pos, "%s%s", sep,
939 get_key_name(keybinding->alias)))
940 return "Too many keybindings!";
950 char cmd[SIZEOF_STR];
953 static struct run_request *run_request;
954 static size_t run_requests;
957 add_run_request(enum keymap keymap, int key, int argc, char **argv)
959 struct run_request *tmp;
960 struct run_request req = { keymap, key };
963 for (bufpos = 0; argc > 0; argc--, argv++)
964 if (!string_format_from(req.cmd, &bufpos, "%s ", *argv))
967 req.cmd[bufpos - 1] = 0;
969 tmp = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
974 run_request[run_requests++] = req;
976 return REQ_NONE + run_requests;
979 static struct run_request *
980 get_run_request(enum request request)
982 if (request <= REQ_NONE)
984 return &run_request[request - REQ_NONE - 1];
988 add_builtin_run_requests(void)
995 { KEYMAP_MAIN, 'C', { "git cherry-pick %(commit)" } },
996 { KEYMAP_GENERIC, 'G', { "git gc" } },
1000 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1003 req = add_run_request(reqs[i].keymap, reqs[i].key, 1, reqs[i].argv);
1004 if (req != REQ_NONE)
1005 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1010 * User config file handling.
1013 static struct int_map color_map[] = {
1014 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1026 #define set_color(color, name) \
1027 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1029 static struct int_map attr_map[] = {
1030 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1037 ATTR_MAP(UNDERLINE),
1040 #define set_attribute(attr, name) \
1041 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1043 static int config_lineno;
1044 static bool config_errors;
1045 static char *config_msg;
1047 /* Wants: object fgcolor bgcolor [attr] */
1049 option_color_command(int argc, char *argv[])
1051 struct line_info *info;
1053 if (argc != 3 && argc != 4) {
1054 config_msg = "Wrong number of arguments given to color command";
1058 info = get_line_info(argv[0]);
1060 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1061 info = get_line_info("delimiter");
1063 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1064 info = get_line_info("date");
1067 config_msg = "Unknown color name";
1072 if (set_color(&info->fg, argv[1]) == ERR ||
1073 set_color(&info->bg, argv[2]) == ERR) {
1074 config_msg = "Unknown color";
1078 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1079 config_msg = "Unknown attribute";
1086 static bool parse_bool(const char *s)
1088 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1089 !strcmp(s, "yes")) ? TRUE : FALSE;
1092 /* Wants: name = value */
1094 option_set_command(int argc, char *argv[])
1097 config_msg = "Wrong number of arguments given to set command";
1101 if (strcmp(argv[1], "=")) {
1102 config_msg = "No value assigned";
1106 if (!strcmp(argv[0], "show-author")) {
1107 opt_author = parse_bool(argv[2]);
1111 if (!strcmp(argv[0], "show-date")) {
1112 opt_date = parse_bool(argv[2]);
1116 if (!strcmp(argv[0], "show-rev-graph")) {
1117 opt_rev_graph = parse_bool(argv[2]);
1121 if (!strcmp(argv[0], "show-refs")) {
1122 opt_show_refs = parse_bool(argv[2]);
1126 if (!strcmp(argv[0], "show-line-numbers")) {
1127 opt_line_number = parse_bool(argv[2]);
1131 if (!strcmp(argv[0], "line-graphics")) {
1132 opt_line_graphics = parse_bool(argv[2]);
1136 if (!strcmp(argv[0], "line-number-interval")) {
1137 opt_num_interval = atoi(argv[2]);
1141 if (!strcmp(argv[0], "tab-size")) {
1142 opt_tab_size = atoi(argv[2]);
1146 if (!strcmp(argv[0], "commit-encoding")) {
1147 char *arg = argv[2];
1148 int delimiter = *arg;
1151 switch (delimiter) {
1154 for (arg++, i = 0; arg[i]; i++)
1155 if (arg[i] == delimiter) {
1160 string_ncopy(opt_encoding, arg, strlen(arg));
1165 config_msg = "Unknown variable name";
1169 /* Wants: mode request key */
1171 option_bind_command(int argc, char *argv[])
1173 enum request request;
1178 config_msg = "Wrong number of arguments given to bind command";
1182 if (set_keymap(&keymap, argv[0]) == ERR) {
1183 config_msg = "Unknown key map";
1187 key = get_key_value(argv[1]);
1189 config_msg = "Unknown key";
1193 request = get_request(argv[2]);
1194 if (request == REQ_NONE) {
1195 const char *obsolete[] = { "cherry-pick" };
1196 size_t namelen = strlen(argv[2]);
1199 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1200 if (namelen == strlen(obsolete[i]) &&
1201 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1202 config_msg = "Obsolete request name";
1207 if (request == REQ_NONE && *argv[2]++ == '!')
1208 request = add_run_request(keymap, key, argc - 2, argv + 2);
1209 if (request == REQ_NONE) {
1210 config_msg = "Unknown request name";
1214 add_keybinding(keymap, request, key);
1220 set_option(char *opt, char *value)
1227 while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) {
1228 argv[argc++] = value;
1231 /* Nothing more to tokenize or last available token. */
1232 if (!*value || argc >= ARRAY_SIZE(argv))
1236 while (isspace(*value))
1240 if (!strcmp(opt, "color"))
1241 return option_color_command(argc, argv);
1243 if (!strcmp(opt, "set"))
1244 return option_set_command(argc, argv);
1246 if (!strcmp(opt, "bind"))
1247 return option_bind_command(argc, argv);
1249 config_msg = "Unknown option command";
1254 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1259 config_msg = "Internal error";
1261 /* Check for comment markers, since read_properties() will
1262 * only ensure opt and value are split at first " \t". */
1263 optlen = strcspn(opt, "#");
1267 if (opt[optlen] != 0) {
1268 config_msg = "No option value";
1272 /* Look for comment endings in the value. */
1273 size_t len = strcspn(value, "#");
1275 if (len < valuelen) {
1277 value[valuelen] = 0;
1280 status = set_option(opt, value);
1283 if (status == ERR) {
1284 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1285 config_lineno, (int) optlen, opt, config_msg);
1286 config_errors = TRUE;
1289 /* Always keep going if errors are encountered. */
1294 load_option_file(const char *path)
1298 /* It's ok that the file doesn't exist. */
1299 file = fopen(path, "r");
1304 config_errors = FALSE;
1306 if (read_properties(file, " \t", read_option) == ERR ||
1307 config_errors == TRUE)
1308 fprintf(stderr, "Errors while loading %s.\n", path);
1314 char *home = getenv("HOME");
1315 char *tigrc_user = getenv("TIGRC_USER");
1316 char *tigrc_system = getenv("TIGRC_SYSTEM");
1317 char buf[SIZEOF_STR];
1319 add_builtin_run_requests();
1321 if (!tigrc_system) {
1322 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1326 load_option_file(tigrc_system);
1329 if (!home || !string_format(buf, "%s/.tigrc", home))
1333 load_option_file(tigrc_user);
1346 /* The display array of active views and the index of the current view. */
1347 static struct view *display[2];
1348 static unsigned int current_view;
1350 /* Reading from the prompt? */
1351 static bool input_mode = FALSE;
1353 #define foreach_displayed_view(view, i) \
1354 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1356 #define displayed_views() (display[1] != NULL ? 2 : 1)
1358 /* Current head and commit ID */
1359 static char ref_blob[SIZEOF_REF] = "";
1360 static char ref_commit[SIZEOF_REF] = "HEAD";
1361 static char ref_head[SIZEOF_REF] = "HEAD";
1364 const char *name; /* View name */
1365 const char *cmd_fmt; /* Default command line format */
1366 const char *cmd_env; /* Command line set via environment */
1367 const char *id; /* Points to either of ref_{head,commit,blob} */
1369 struct view_ops *ops; /* View operations */
1371 enum keymap keymap; /* What keymap does this view have */
1372 bool git_dir; /* Whether the view requires a git directory. */
1374 char cmd[SIZEOF_STR]; /* Command buffer */
1375 char ref[SIZEOF_REF]; /* Hovered commit reference */
1376 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1378 int height, width; /* The width and height of the main window */
1379 WINDOW *win; /* The main window */
1380 WINDOW *title; /* The title window living below the main window */
1383 unsigned long offset; /* Offset of the window top */
1384 unsigned long lineno; /* Current line number */
1387 char grep[SIZEOF_STR]; /* Search string */
1388 regex_t *regex; /* Pre-compiled regex */
1390 /* If non-NULL, points to the view that opened this view. If this view
1391 * is closed tig will switch back to the parent view. */
1392 struct view *parent;
1395 size_t lines; /* Total number of lines */
1396 struct line *line; /* Line index */
1397 size_t line_alloc; /* Total number of allocated lines */
1398 size_t line_size; /* Total number of used lines */
1399 unsigned int digits; /* Number of digits in the lines member. */
1402 struct line *curline; /* Line currently being drawn. */
1403 enum line_type curtype; /* Attribute currently used for drawing. */
1411 /* What type of content being displayed. Used in the title bar. */
1413 /* Open and reads in all view content. */
1414 bool (*open)(struct view *view);
1415 /* Read one line; updates view->line. */
1416 bool (*read)(struct view *view, char *data);
1417 /* Draw one line; @lineno must be < view->height. */
1418 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1419 /* Depending on view handle a special requests. */
1420 enum request (*request)(struct view *view, enum request request, struct line *line);
1421 /* Search for regex in a line. */
1422 bool (*grep)(struct view *view, struct line *line);
1424 void (*select)(struct view *view, struct line *line);
1427 static struct view_ops pager_ops;
1428 static struct view_ops main_ops;
1429 static struct view_ops tree_ops;
1430 static struct view_ops blob_ops;
1431 static struct view_ops blame_ops;
1432 static struct view_ops help_ops;
1433 static struct view_ops status_ops;
1434 static struct view_ops stage_ops;
1436 #define VIEW_STR(name, cmd, env, ref, ops, map, git) \
1437 { name, cmd, #env, ref, ops, map, git }
1439 #define VIEW_(id, name, ops, git, ref) \
1440 VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1443 static struct view views[] = {
1444 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1445 VIEW_(DIFF, "diff", &pager_ops, TRUE, ref_commit),
1446 VIEW_(LOG, "log", &pager_ops, TRUE, ref_head),
1447 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1448 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1449 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1450 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1451 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1452 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1453 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1456 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1457 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1459 #define foreach_view(view, i) \
1460 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1462 #define view_is_displayed(view) \
1463 (view == display[0] || view == display[1])
1470 static int line_graphics[] = {
1471 /* LINE_GRAPHIC_VLINE: */ '|'
1475 set_view_attr(struct view *view, enum line_type type)
1477 if (!view->curline->selected && view->curtype != type) {
1478 wattrset(view->win, get_line_attr(type));
1479 wchgat(view->win, -1, 0, type, NULL);
1480 view->curtype = type;
1485 draw_text(struct view *view, enum line_type type, const char *string,
1486 int max_len, bool use_tilde)
1489 int trimmed = FALSE;
1495 len = utf8_length(string, max_len, &trimmed, use_tilde);
1497 len = strlen(string);
1498 if (len > max_len) {
1507 set_view_attr(view, type);
1508 waddnstr(view->win, string, len);
1509 if (trimmed && use_tilde) {
1510 set_view_attr(view, LINE_DELIMITER);
1511 waddch(view->win, '~');
1519 draw_lineno(struct view *view, unsigned int lineno, int max)
1521 static char fmt[] = "%1ld";
1522 char number[10] = " ";
1523 int digits3 = view->digits < 3 ? 3 : view->digits;
1524 int max_number = MIN(digits3, STRING_SIZE(number));
1525 bool showtrimmed = FALSE;
1528 lineno += view->offset + 1;
1529 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1530 if (view->digits <= 9)
1531 fmt[1] = '0' + digits3;
1533 if (!string_format(number, fmt, lineno))
1538 if (max < max_number)
1541 col = draw_text(view, LINE_LINE_NUMBER, number, max_number, showtrimmed);
1543 set_view_attr(view, LINE_DEFAULT);
1544 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1548 waddch(view->win, ' ');
1556 draw_date(struct view *view, struct tm *time, int max)
1558 char buf[DATE_COLS];
1562 if (max > DATE_COLS)
1565 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1567 memset(buf, ' ', sizeof(buf) - 1);
1568 buf[sizeof(buf) - 1] = 0;
1571 col = draw_text(view, LINE_DATE, buf, max, FALSE);
1573 set_view_attr(view, LINE_DEFAULT);
1574 waddch(view->win, ' ');
1582 draw_view_line(struct view *view, unsigned int lineno)
1585 bool selected = (view->offset + lineno == view->lineno);
1588 assert(view_is_displayed(view));
1590 if (view->offset + lineno >= view->lines)
1593 line = &view->line[view->offset + lineno];
1595 wmove(view->win, lineno, 0);
1596 view->curline = line;
1597 view->curtype = LINE_NONE;
1598 line->selected = FALSE;
1601 set_view_attr(view, LINE_CURSOR);
1602 line->selected = TRUE;
1603 view->ops->select(view, line);
1604 } else if (line->selected) {
1605 wclrtoeol(view->win);
1608 scrollok(view->win, FALSE);
1609 draw_ok = view->ops->draw(view, line, lineno);
1610 scrollok(view->win, TRUE);
1616 redraw_view_dirty(struct view *view)
1621 for (lineno = 0; lineno < view->height; lineno++) {
1622 struct line *line = &view->line[view->offset + lineno];
1628 if (!draw_view_line(view, lineno))
1634 redrawwin(view->win);
1636 wnoutrefresh(view->win);
1638 wrefresh(view->win);
1642 redraw_view_from(struct view *view, int lineno)
1644 assert(0 <= lineno && lineno < view->height);
1646 for (; lineno < view->height; lineno++) {
1647 if (!draw_view_line(view, lineno))
1651 redrawwin(view->win);
1653 wnoutrefresh(view->win);
1655 wrefresh(view->win);
1659 redraw_view(struct view *view)
1662 redraw_view_from(view, 0);
1667 update_view_title(struct view *view)
1669 char buf[SIZEOF_STR];
1670 char state[SIZEOF_STR];
1671 size_t bufpos = 0, statelen = 0;
1673 assert(view_is_displayed(view));
1675 if (view != VIEW(REQ_VIEW_STATUS) && (view->lines || view->pipe)) {
1676 unsigned int view_lines = view->offset + view->height;
1677 unsigned int lines = view->lines
1678 ? MIN(view_lines, view->lines) * 100 / view->lines
1681 string_format_from(state, &statelen, "- %s %d of %d (%d%%)",
1688 time_t secs = time(NULL) - view->start_time;
1690 /* Three git seconds are a long time ... */
1692 string_format_from(state, &statelen, " %lds", secs);
1696 string_format_from(buf, &bufpos, "[%s]", view->name);
1697 if (*view->ref && bufpos < view->width) {
1698 size_t refsize = strlen(view->ref);
1699 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
1701 if (minsize < view->width)
1702 refsize = view->width - minsize + 7;
1703 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
1706 if (statelen && bufpos < view->width) {
1707 string_format_from(buf, &bufpos, " %s", state);
1710 if (view == display[current_view])
1711 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
1713 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
1715 mvwaddnstr(view->title, 0, 0, buf, bufpos);
1716 wclrtoeol(view->title);
1717 wmove(view->title, 0, view->width - 1);
1720 wnoutrefresh(view->title);
1722 wrefresh(view->title);
1726 resize_display(void)
1729 struct view *base = display[0];
1730 struct view *view = display[1] ? display[1] : display[0];
1732 /* Setup window dimensions */
1734 getmaxyx(stdscr, base->height, base->width);
1736 /* Make room for the status window. */
1740 /* Horizontal split. */
1741 view->width = base->width;
1742 view->height = SCALE_SPLIT_VIEW(base->height);
1743 base->height -= view->height;
1745 /* Make room for the title bar. */
1749 /* Make room for the title bar. */
1754 foreach_displayed_view (view, i) {
1756 view->win = newwin(view->height, 0, offset, 0);
1758 die("Failed to create %s view", view->name);
1760 scrollok(view->win, TRUE);
1762 view->title = newwin(1, 0, offset + view->height, 0);
1764 die("Failed to create title window");
1767 wresize(view->win, view->height, view->width);
1768 mvwin(view->win, offset, 0);
1769 mvwin(view->title, offset + view->height, 0);
1772 offset += view->height + 1;
1777 redraw_display(void)
1782 foreach_displayed_view (view, i) {
1784 update_view_title(view);
1789 update_display_cursor(struct view *view)
1791 /* Move the cursor to the right-most column of the cursor line.
1793 * XXX: This could turn out to be a bit expensive, but it ensures that
1794 * the cursor does not jump around. */
1796 wmove(view->win, view->lineno - view->offset, view->width - 1);
1797 wrefresh(view->win);
1805 /* Scrolling backend */
1807 do_scroll_view(struct view *view, int lines)
1809 bool redraw_current_line = FALSE;
1811 /* The rendering expects the new offset. */
1812 view->offset += lines;
1814 assert(0 <= view->offset && view->offset < view->lines);
1817 /* Move current line into the view. */
1818 if (view->lineno < view->offset) {
1819 view->lineno = view->offset;
1820 redraw_current_line = TRUE;
1821 } else if (view->lineno >= view->offset + view->height) {
1822 view->lineno = view->offset + view->height - 1;
1823 redraw_current_line = TRUE;
1826 assert(view->offset <= view->lineno && view->lineno < view->lines);
1828 /* Redraw the whole screen if scrolling is pointless. */
1829 if (view->height < ABS(lines)) {
1833 int line = lines > 0 ? view->height - lines : 0;
1834 int end = line + ABS(lines);
1836 wscrl(view->win, lines);
1838 for (; line < end; line++) {
1839 if (!draw_view_line(view, line))
1843 if (redraw_current_line)
1844 draw_view_line(view, view->lineno - view->offset);
1847 redrawwin(view->win);
1848 wrefresh(view->win);
1852 /* Scroll frontend */
1854 scroll_view(struct view *view, enum request request)
1858 assert(view_is_displayed(view));
1861 case REQ_SCROLL_PAGE_DOWN:
1862 lines = view->height;
1863 case REQ_SCROLL_LINE_DOWN:
1864 if (view->offset + lines > view->lines)
1865 lines = view->lines - view->offset;
1867 if (lines == 0 || view->offset + view->height >= view->lines) {
1868 report("Cannot scroll beyond the last line");
1873 case REQ_SCROLL_PAGE_UP:
1874 lines = view->height;
1875 case REQ_SCROLL_LINE_UP:
1876 if (lines > view->offset)
1877 lines = view->offset;
1880 report("Cannot scroll beyond the first line");
1888 die("request %d not handled in switch", request);
1891 do_scroll_view(view, lines);
1896 move_view(struct view *view, enum request request)
1898 int scroll_steps = 0;
1902 case REQ_MOVE_FIRST_LINE:
1903 steps = -view->lineno;
1906 case REQ_MOVE_LAST_LINE:
1907 steps = view->lines - view->lineno - 1;
1910 case REQ_MOVE_PAGE_UP:
1911 steps = view->height > view->lineno
1912 ? -view->lineno : -view->height;
1915 case REQ_MOVE_PAGE_DOWN:
1916 steps = view->lineno + view->height >= view->lines
1917 ? view->lines - view->lineno - 1 : view->height;
1929 die("request %d not handled in switch", request);
1932 if (steps <= 0 && view->lineno == 0) {
1933 report("Cannot move beyond the first line");
1936 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
1937 report("Cannot move beyond the last line");
1941 /* Move the current line */
1942 view->lineno += steps;
1943 assert(0 <= view->lineno && view->lineno < view->lines);
1945 /* Check whether the view needs to be scrolled */
1946 if (view->lineno < view->offset ||
1947 view->lineno >= view->offset + view->height) {
1948 scroll_steps = steps;
1949 if (steps < 0 && -steps > view->offset) {
1950 scroll_steps = -view->offset;
1952 } else if (steps > 0) {
1953 if (view->lineno == view->lines - 1 &&
1954 view->lines > view->height) {
1955 scroll_steps = view->lines - view->offset - 1;
1956 if (scroll_steps >= view->height)
1957 scroll_steps -= view->height - 1;
1962 if (!view_is_displayed(view)) {
1963 view->offset += scroll_steps;
1964 assert(0 <= view->offset && view->offset < view->lines);
1965 view->ops->select(view, &view->line[view->lineno]);
1969 /* Repaint the old "current" line if we be scrolling */
1970 if (ABS(steps) < view->height)
1971 draw_view_line(view, view->lineno - steps - view->offset);
1974 do_scroll_view(view, scroll_steps);
1978 /* Draw the current line */
1979 draw_view_line(view, view->lineno - view->offset);
1981 redrawwin(view->win);
1982 wrefresh(view->win);
1991 static void search_view(struct view *view, enum request request);
1994 find_next_line(struct view *view, unsigned long lineno, struct line *line)
1996 assert(view_is_displayed(view));
1998 if (!view->ops->grep(view, line))
2001 if (lineno - view->offset >= view->height) {
2002 view->offset = lineno;
2003 view->lineno = lineno;
2007 unsigned long old_lineno = view->lineno - view->offset;
2009 view->lineno = lineno;
2010 draw_view_line(view, old_lineno);
2012 draw_view_line(view, view->lineno - view->offset);
2013 redrawwin(view->win);
2014 wrefresh(view->win);
2017 report("Line %ld matches '%s'", lineno + 1, view->grep);
2022 find_next(struct view *view, enum request request)
2024 unsigned long lineno = view->lineno;
2029 report("No previous search");
2031 search_view(view, request);
2041 case REQ_SEARCH_BACK:
2050 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2051 lineno += direction;
2053 /* Note, lineno is unsigned long so will wrap around in which case it
2054 * will become bigger than view->lines. */
2055 for (; lineno < view->lines; lineno += direction) {
2056 struct line *line = &view->line[lineno];
2058 if (find_next_line(view, lineno, line))
2062 report("No match found for '%s'", view->grep);
2066 search_view(struct view *view, enum request request)
2071 regfree(view->regex);
2074 view->regex = calloc(1, sizeof(*view->regex));
2079 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2080 if (regex_err != 0) {
2081 char buf[SIZEOF_STR] = "unknown error";
2083 regerror(regex_err, view->regex, buf, sizeof(buf));
2084 report("Search failed: %s", buf);
2088 string_copy(view->grep, opt_search);
2090 find_next(view, request);
2094 * Incremental updating
2098 end_update(struct view *view)
2102 set_nonblocking_input(FALSE);
2103 if (view->pipe == stdin)
2111 begin_update(struct view *view)
2117 string_copy(view->cmd, opt_cmd);
2119 /* When running random commands, initially show the
2120 * command in the title. However, it maybe later be
2121 * overwritten if a commit line is selected. */
2122 if (view == VIEW(REQ_VIEW_PAGER))
2123 string_copy(view->ref, view->cmd);
2127 } else if (view == VIEW(REQ_VIEW_TREE)) {
2128 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2129 char path[SIZEOF_STR];
2131 if (strcmp(view->vid, view->id))
2132 opt_path[0] = path[0] = 0;
2133 else if (sq_quote(path, 0, opt_path) >= sizeof(path))
2136 if (!string_format(view->cmd, format, view->id, path))
2140 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2141 const char *id = view->id;
2143 if (!string_format(view->cmd, format, id, id, id, id, id))
2146 /* Put the current ref_* value to the view title ref
2147 * member. This is needed by the blob view. Most other
2148 * views sets it automatically after loading because the
2149 * first line is a commit line. */
2150 string_copy_rev(view->ref, view->id);
2153 /* Special case for the pager view. */
2155 view->pipe = opt_pipe;
2158 view->pipe = popen(view->cmd, "r");
2164 set_nonblocking_input(TRUE);
2169 string_copy_rev(view->vid, view->id);
2174 for (i = 0; i < view->lines; i++)
2175 if (view->line[i].data)
2176 free(view->line[i].data);
2182 view->start_time = time(NULL);
2187 #define ITEM_CHUNK_SIZE 256
2189 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2191 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2192 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2194 if (mem == NULL || num_chunks != num_chunks_new) {
2195 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2196 mem = realloc(mem, *size * item_size);
2202 static struct line *
2203 realloc_lines(struct view *view, size_t line_size)
2205 size_t alloc = view->line_alloc;
2206 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2207 sizeof(*view->line));
2213 view->line_alloc = alloc;
2214 view->line_size = line_size;
2219 update_view(struct view *view)
2221 char in_buffer[BUFSIZ];
2222 char out_buffer[BUFSIZ * 2];
2224 /* The number of lines to read. If too low it will cause too much
2225 * redrawing (and possible flickering), if too high responsiveness
2227 unsigned long lines = view->height;
2228 int redraw_from = -1;
2233 /* Only redraw if lines are visible. */
2234 if (view->offset + view->height >= view->lines)
2235 redraw_from = view->lines - view->offset;
2237 /* FIXME: This is probably not perfect for backgrounded views. */
2238 if (!realloc_lines(view, view->lines + lines))
2241 while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) {
2242 size_t linelen = strlen(line);
2245 line[linelen - 1] = 0;
2247 if (opt_iconv != ICONV_NONE) {
2248 ICONV_CONST char *inbuf = line;
2249 size_t inlen = linelen;
2251 char *outbuf = out_buffer;
2252 size_t outlen = sizeof(out_buffer);
2256 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2257 if (ret != (size_t) -1) {
2259 linelen = strlen(out_buffer);
2263 if (!view->ops->read(view, line))
2273 lines = view->lines;
2274 for (digits = 0; lines; digits++)
2277 /* Keep the displayed view in sync with line number scaling. */
2278 if (digits != view->digits) {
2279 view->digits = digits;
2284 if (!view_is_displayed(view))
2287 if (view == VIEW(REQ_VIEW_TREE)) {
2288 /* Clear the view and redraw everything since the tree sorting
2289 * might have rearranged things. */
2292 } else if (redraw_from >= 0) {
2293 /* If this is an incremental update, redraw the previous line
2294 * since for commits some members could have changed when
2295 * loading the main view. */
2296 if (redraw_from > 0)
2299 /* Since revision graph visualization requires knowledge
2300 * about the parent commit, it causes a further one-off
2301 * needed to be redrawn for incremental updates. */
2302 if (redraw_from > 0 && opt_rev_graph)
2305 /* Incrementally draw avoids flickering. */
2306 redraw_view_from(view, redraw_from);
2309 if (view == VIEW(REQ_VIEW_BLAME))
2310 redraw_view_dirty(view);
2312 /* Update the title _after_ the redraw so that if the redraw picks up a
2313 * commit reference in view->ref it'll be available here. */
2314 update_view_title(view);
2317 if (ferror(view->pipe)) {
2318 report("Failed to read: %s", strerror(errno));
2321 } else if (feof(view->pipe)) {
2329 report("Allocation failure");
2332 if (view->ops->read(view, NULL))
2337 static struct line *
2338 add_line_data(struct view *view, void *data, enum line_type type)
2340 struct line *line = &view->line[view->lines++];
2342 memset(line, 0, sizeof(*line));
2349 static struct line *
2350 add_line_text(struct view *view, char *data, enum line_type type)
2353 data = strdup(data);
2355 return data ? add_line_data(view, data, type) : NULL;
2364 OPEN_DEFAULT = 0, /* Use default view switching. */
2365 OPEN_SPLIT = 1, /* Split current view. */
2366 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2367 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2368 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2372 open_view(struct view *prev, enum request request, enum open_flags flags)
2374 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2375 bool split = !!(flags & OPEN_SPLIT);
2376 bool reload = !!(flags & OPEN_RELOAD);
2377 bool nomaximize = !!(flags & OPEN_NOMAXIMIZE);
2378 struct view *view = VIEW(request);
2379 int nviews = displayed_views();
2380 struct view *base_view = display[0];
2382 if (view == prev && nviews == 1 && !reload) {
2383 report("Already in %s view", view->name);
2387 if (view->git_dir && !opt_git_dir[0]) {
2388 report("The %s view is disabled in pager view", view->name);
2396 } else if (!nomaximize) {
2397 /* Maximize the current view. */
2398 memset(display, 0, sizeof(display));
2400 display[current_view] = view;
2403 /* Resize the view when switching between split- and full-screen,
2404 * or when switching between two different full-screen views. */
2405 if (nviews != displayed_views() ||
2406 (nviews == 1 && base_view != display[0]))
2409 if (view->ops->open) {
2410 if (!view->ops->open(view)) {
2411 report("Failed to load %s view", view->name);
2415 } else if ((reload || strcmp(view->vid, view->id)) &&
2416 !begin_update(view)) {
2417 report("Failed to load %s view", view->name);
2421 if (split && prev->lineno - prev->offset >= prev->height) {
2422 /* Take the title line into account. */
2423 int lines = prev->lineno - prev->offset - prev->height + 1;
2425 /* Scroll the view that was split if the current line is
2426 * outside the new limited view. */
2427 do_scroll_view(prev, lines);
2430 if (prev && view != prev) {
2431 if (split && !backgrounded) {
2432 /* "Blur" the previous view. */
2433 update_view_title(prev);
2436 view->parent = prev;
2439 if (view->pipe && view->lines == 0) {
2440 /* Clear the old view and let the incremental updating refill
2449 /* If the view is backgrounded the above calls to report()
2450 * won't redraw the view title. */
2452 update_view_title(view);
2456 open_external_viewer(const char *cmd)
2458 def_prog_mode(); /* save current tty modes */
2459 endwin(); /* restore original tty modes */
2461 fprintf(stderr, "Press Enter to continue");
2468 open_mergetool(const char *file)
2470 char cmd[SIZEOF_STR];
2471 char file_sq[SIZEOF_STR];
2473 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2474 string_format(cmd, "git mergetool %s", file_sq)) {
2475 open_external_viewer(cmd);
2480 open_editor(bool from_root, const char *file)
2482 char cmd[SIZEOF_STR];
2483 char file_sq[SIZEOF_STR];
2485 char *prefix = from_root ? opt_cdup : "";
2487 editor = getenv("GIT_EDITOR");
2488 if (!editor && *opt_editor)
2489 editor = opt_editor;
2491 editor = getenv("VISUAL");
2493 editor = getenv("EDITOR");
2497 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2498 string_format(cmd, "%s %s%s", editor, prefix, file_sq)) {
2499 open_external_viewer(cmd);
2504 open_run_request(enum request request)
2506 struct run_request *req = get_run_request(request);
2507 char buf[SIZEOF_STR * 2];
2512 report("Unknown run request");
2520 char *next = strstr(cmd, "%(");
2521 int len = next - cmd;
2528 } else if (!strncmp(next, "%(head)", 7)) {
2531 } else if (!strncmp(next, "%(commit)", 9)) {
2534 } else if (!strncmp(next, "%(blob)", 7)) {
2538 report("Unknown replacement in run request: `%s`", req->cmd);
2542 if (!string_format_from(buf, &bufpos, "%.*s%s", len, cmd, value))
2546 next = strchr(next, ')') + 1;
2550 open_external_viewer(buf);
2554 * User request switch noodle
2558 view_driver(struct view *view, enum request request)
2562 if (request == REQ_NONE) {
2567 if (request > REQ_NONE) {
2568 open_run_request(request);
2569 /* FIXME: When all views can refresh always do this. */
2570 if (view == VIEW(REQ_VIEW_STATUS) ||
2571 view == VIEW(REQ_VIEW_STAGE))
2572 request = REQ_REFRESH;
2577 if (view && view->lines) {
2578 request = view->ops->request(view, request, &view->line[view->lineno]);
2579 if (request == REQ_NONE)
2586 case REQ_MOVE_PAGE_UP:
2587 case REQ_MOVE_PAGE_DOWN:
2588 case REQ_MOVE_FIRST_LINE:
2589 case REQ_MOVE_LAST_LINE:
2590 move_view(view, request);
2593 case REQ_SCROLL_LINE_DOWN:
2594 case REQ_SCROLL_LINE_UP:
2595 case REQ_SCROLL_PAGE_DOWN:
2596 case REQ_SCROLL_PAGE_UP:
2597 scroll_view(view, request);
2600 case REQ_VIEW_BLAME:
2602 report("No file chosen, press %s to open tree view",
2603 get_key(REQ_VIEW_TREE));
2606 open_view(view, request, OPEN_DEFAULT);
2611 report("No file chosen, press %s to open tree view",
2612 get_key(REQ_VIEW_TREE));
2615 open_view(view, request, OPEN_DEFAULT);
2618 case REQ_VIEW_PAGER:
2619 if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2620 report("No pager content, press %s to run command from prompt",
2621 get_key(REQ_PROMPT));
2624 open_view(view, request, OPEN_DEFAULT);
2627 case REQ_VIEW_STAGE:
2628 if (!VIEW(REQ_VIEW_STAGE)->lines) {
2629 report("No stage content, press %s to open the status view and choose file",
2630 get_key(REQ_VIEW_STATUS));
2633 open_view(view, request, OPEN_DEFAULT);
2636 case REQ_VIEW_STATUS:
2637 if (opt_is_inside_work_tree == FALSE) {
2638 report("The status view requires a working tree");
2641 open_view(view, request, OPEN_DEFAULT);
2649 open_view(view, request, OPEN_DEFAULT);
2654 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2656 if ((view == VIEW(REQ_VIEW_DIFF) &&
2657 view->parent == VIEW(REQ_VIEW_MAIN)) ||
2658 (view == VIEW(REQ_VIEW_DIFF) &&
2659 view->parent == VIEW(REQ_VIEW_BLAME)) ||
2660 (view == VIEW(REQ_VIEW_STAGE) &&
2661 view->parent == VIEW(REQ_VIEW_STATUS)) ||
2662 (view == VIEW(REQ_VIEW_BLOB) &&
2663 view->parent == VIEW(REQ_VIEW_TREE))) {
2666 view = view->parent;
2667 line = view->lineno;
2668 move_view(view, request);
2669 if (view_is_displayed(view))
2670 update_view_title(view);
2671 if (line != view->lineno)
2672 view->ops->request(view, REQ_ENTER,
2673 &view->line[view->lineno]);
2676 move_view(view, request);
2682 int nviews = displayed_views();
2683 int next_view = (current_view + 1) % nviews;
2685 if (next_view == current_view) {
2686 report("Only one view is displayed");
2690 current_view = next_view;
2691 /* Blur out the title of the previous view. */
2692 update_view_title(view);
2697 report("Refreshing is not yet supported for the %s view", view->name);
2701 if (displayed_views() == 2)
2702 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
2705 case REQ_TOGGLE_LINENO:
2706 opt_line_number = !opt_line_number;
2710 case REQ_TOGGLE_DATE:
2711 opt_date = !opt_date;
2715 case REQ_TOGGLE_AUTHOR:
2716 opt_author = !opt_author;
2720 case REQ_TOGGLE_REV_GRAPH:
2721 opt_rev_graph = !opt_rev_graph;
2725 case REQ_TOGGLE_REFS:
2726 opt_show_refs = !opt_show_refs;
2731 /* Always reload^Wrerun commands from the prompt. */
2732 open_view(view, opt_request, OPEN_RELOAD);
2736 case REQ_SEARCH_BACK:
2737 search_view(view, request);
2742 find_next(view, request);
2745 case REQ_STOP_LOADING:
2746 for (i = 0; i < ARRAY_SIZE(views); i++) {
2749 report("Stopped loading the %s view", view->name),
2754 case REQ_SHOW_VERSION:
2755 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
2758 case REQ_SCREEN_RESIZE:
2761 case REQ_SCREEN_REDRAW:
2766 report("Nothing to edit");
2771 report("Nothing to enter");
2775 case REQ_VIEW_CLOSE:
2776 /* XXX: Mark closed views by letting view->parent point to the
2777 * view itself. Parents to closed view should never be
2780 view->parent->parent != view->parent) {
2781 memset(display, 0, sizeof(display));
2783 display[current_view] = view->parent;
2784 view->parent = view;
2794 /* An unknown key will show most commonly used commands. */
2795 report("Unknown key, press 'h' for help");
2808 pager_draw(struct view *view, struct line *line, unsigned int lineno)
2810 char *text = line->data;
2813 if (opt_line_number) {
2814 col += draw_lineno(view, lineno, view->width);
2815 if (col >= view->width)
2819 draw_text(view, line->type, text, view->width - col, TRUE);
2824 add_describe_ref(char *buf, size_t *bufpos, char *commit_id, const char *sep)
2826 char refbuf[SIZEOF_STR];
2830 if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id))
2833 pipe = popen(refbuf, "r");
2837 if ((ref = fgets(refbuf, sizeof(refbuf), pipe)))
2838 ref = chomp_string(ref);
2844 /* This is the only fatal call, since it can "corrupt" the buffer. */
2845 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
2852 add_pager_refs(struct view *view, struct line *line)
2854 char buf[SIZEOF_STR];
2855 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
2857 size_t bufpos = 0, refpos = 0;
2858 const char *sep = "Refs: ";
2859 bool is_tag = FALSE;
2861 assert(line->type == LINE_COMMIT);
2863 refs = get_refs(commit_id);
2865 if (view == VIEW(REQ_VIEW_DIFF))
2866 goto try_add_describe_ref;
2871 struct ref *ref = refs[refpos];
2872 char *fmt = ref->tag ? "%s[%s]" :
2873 ref->remote ? "%s<%s>" : "%s%s";
2875 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
2880 } while (refs[refpos++]->next);
2882 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
2883 try_add_describe_ref:
2884 /* Add <tag>-g<commit_id> "fake" reference. */
2885 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
2892 if (!realloc_lines(view, view->line_size + 1))
2895 add_line_text(view, buf, LINE_PP_REFS);
2899 pager_read(struct view *view, char *data)
2906 line = add_line_text(view, data, get_line_type(data));
2910 if (line->type == LINE_COMMIT &&
2911 (view == VIEW(REQ_VIEW_DIFF) ||
2912 view == VIEW(REQ_VIEW_LOG)))
2913 add_pager_refs(view, line);
2919 pager_request(struct view *view, enum request request, struct line *line)
2923 if (request != REQ_ENTER)
2926 if (line->type == LINE_COMMIT &&
2927 (view == VIEW(REQ_VIEW_LOG) ||
2928 view == VIEW(REQ_VIEW_PAGER))) {
2929 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
2933 /* Always scroll the view even if it was split. That way
2934 * you can use Enter to scroll through the log view and
2935 * split open each commit diff. */
2936 scroll_view(view, REQ_SCROLL_LINE_DOWN);
2938 /* FIXME: A minor workaround. Scrolling the view will call report("")
2939 * but if we are scrolling a non-current view this won't properly
2940 * update the view title. */
2942 update_view_title(view);
2948 pager_grep(struct view *view, struct line *line)
2951 char *text = line->data;
2956 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
2963 pager_select(struct view *view, struct line *line)
2965 if (line->type == LINE_COMMIT) {
2966 char *text = (char *)line->data + STRING_SIZE("commit ");
2968 if (view != VIEW(REQ_VIEW_PAGER))
2969 string_copy_rev(view->ref, text);
2970 string_copy_rev(ref_commit, text);
2974 static struct view_ops pager_ops = {
2990 help_open(struct view *view)
2993 int lines = ARRAY_SIZE(req_info) + 2;
2996 if (view->lines > 0)
2999 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3000 if (!req_info[i].request)
3003 lines += run_requests + 1;
3005 view->line = calloc(lines, sizeof(*view->line));
3009 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3011 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3014 if (req_info[i].request == REQ_NONE)
3017 if (!req_info[i].request) {
3018 add_line_text(view, "", LINE_DEFAULT);
3019 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3023 key = get_key(req_info[i].request);
3025 key = "(no key defined)";
3027 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
3030 add_line_text(view, buf, LINE_DEFAULT);
3034 add_line_text(view, "", LINE_DEFAULT);
3035 add_line_text(view, "External commands:", LINE_DEFAULT);
3038 for (i = 0; i < run_requests; i++) {
3039 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3045 key = get_key_name(req->key);
3047 key = "(no key defined)";
3049 if (!string_format(buf, " %-10s %-14s `%s`",
3050 keymap_table[req->keymap].name,
3054 add_line_text(view, buf, LINE_DEFAULT);
3060 static struct view_ops help_ops = {
3075 struct tree_stack_entry {
3076 struct tree_stack_entry *prev; /* Entry below this in the stack */
3077 unsigned long lineno; /* Line number to restore */
3078 char *name; /* Position of name in opt_path */
3081 /* The top of the path stack. */
3082 static struct tree_stack_entry *tree_stack = NULL;
3083 unsigned long tree_lineno = 0;
3086 pop_tree_stack_entry(void)
3088 struct tree_stack_entry *entry = tree_stack;
3090 tree_lineno = entry->lineno;
3092 tree_stack = entry->prev;
3097 push_tree_stack_entry(char *name, unsigned long lineno)
3099 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3100 size_t pathlen = strlen(opt_path);
3105 entry->prev = tree_stack;
3106 entry->name = opt_path + pathlen;
3109 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3110 pop_tree_stack_entry();
3114 /* Move the current line to the first tree entry. */
3116 entry->lineno = lineno;
3119 /* Parse output from git-ls-tree(1):
3121 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3122 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3123 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3124 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3127 #define SIZEOF_TREE_ATTR \
3128 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3130 #define TREE_UP_FORMAT "040000 tree %s\t.."
3133 tree_compare_entry(enum line_type type1, char *name1,
3134 enum line_type type2, char *name2)
3136 if (type1 != type2) {
3137 if (type1 == LINE_TREE_DIR)
3142 return strcmp(name1, name2);
3146 tree_path(struct line *line)
3148 char *path = line->data;
3150 return path + SIZEOF_TREE_ATTR;
3154 tree_read(struct view *view, char *text)
3156 size_t textlen = text ? strlen(text) : 0;
3157 char buf[SIZEOF_STR];
3159 enum line_type type;
3160 bool first_read = view->lines == 0;
3164 if (textlen <= SIZEOF_TREE_ATTR)
3167 type = text[STRING_SIZE("100644 ")] == 't'
3168 ? LINE_TREE_DIR : LINE_TREE_FILE;
3171 /* Add path info line */
3172 if (!string_format(buf, "Directory path /%s", opt_path) ||
3173 !realloc_lines(view, view->line_size + 1) ||
3174 !add_line_text(view, buf, LINE_DEFAULT))
3177 /* Insert "link" to parent directory. */
3179 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
3180 !realloc_lines(view, view->line_size + 1) ||
3181 !add_line_text(view, buf, LINE_TREE_DIR))
3186 /* Strip the path part ... */
3188 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3189 size_t striplen = strlen(opt_path);
3190 char *path = text + SIZEOF_TREE_ATTR;
3192 if (pathlen > striplen)
3193 memmove(path, path + striplen,
3194 pathlen - striplen + 1);
3197 /* Skip "Directory ..." and ".." line. */
3198 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
3199 struct line *line = &view->line[pos];
3200 char *path1 = tree_path(line);
3201 char *path2 = text + SIZEOF_TREE_ATTR;
3202 int cmp = tree_compare_entry(line->type, path1, type, path2);
3207 text = strdup(text);
3211 if (view->lines > pos)
3212 memmove(&view->line[pos + 1], &view->line[pos],
3213 (view->lines - pos) * sizeof(*line));
3215 line = &view->line[pos];
3222 if (!add_line_text(view, text, type))
3225 if (tree_lineno > view->lineno) {
3226 view->lineno = tree_lineno;
3234 tree_request(struct view *view, enum request request, struct line *line)
3236 enum open_flags flags;
3238 if (request == REQ_VIEW_BLAME) {
3239 char *filename = tree_path(line);
3241 if (line->type == LINE_TREE_DIR) {
3242 report("Cannot show blame for directory %s", opt_path);
3246 string_copy(opt_ref, view->vid);
3247 string_format(opt_file, "%s%s", opt_path, filename);
3250 if (request == REQ_TREE_PARENT) {
3253 request = REQ_ENTER;
3254 line = &view->line[1];
3256 /* quit view if at top of tree */
3257 return REQ_VIEW_CLOSE;
3260 if (request != REQ_ENTER)
3263 /* Cleanup the stack if the tree view is at a different tree. */
3264 while (!*opt_path && tree_stack)
3265 pop_tree_stack_entry();
3267 switch (line->type) {
3269 /* Depending on whether it is a subdir or parent (updir?) link
3270 * mangle the path buffer. */
3271 if (line == &view->line[1] && *opt_path) {
3272 pop_tree_stack_entry();
3275 char *basename = tree_path(line);
3277 push_tree_stack_entry(basename, view->lineno);
3280 /* Trees and subtrees share the same ID, so they are not not
3281 * unique like blobs. */
3282 flags = OPEN_RELOAD;
3283 request = REQ_VIEW_TREE;
3286 case LINE_TREE_FILE:
3287 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3288 request = REQ_VIEW_BLOB;
3295 open_view(view, request, flags);
3296 if (request == REQ_VIEW_TREE) {
3297 view->lineno = tree_lineno;
3304 tree_select(struct view *view, struct line *line)
3306 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3308 if (line->type == LINE_TREE_FILE) {
3309 string_copy_rev(ref_blob, text);
3311 } else if (line->type != LINE_TREE_DIR) {
3315 string_copy_rev(view->ref, text);
3318 static struct view_ops tree_ops = {
3329 blob_read(struct view *view, char *line)
3333 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3336 static struct view_ops blob_ops = {
3349 * Loading the blame view is a two phase job:
3351 * 1. File content is read either using opt_file from the
3352 * filesystem or using git-cat-file.
3353 * 2. Then blame information is incrementally added by
3354 * reading output from git-blame.
3357 struct blame_commit {
3358 char id[SIZEOF_REV]; /* SHA1 ID. */
3359 char title[128]; /* First line of the commit message. */
3360 char author[75]; /* Author of the commit. */
3361 struct tm time; /* Date from the author ident. */
3362 char filename[128]; /* Name of file. */
3366 struct blame_commit *commit;
3367 unsigned int header:1;
3371 #define BLAME_CAT_FILE_CMD "git cat-file blob %s:%s"
3372 #define BLAME_INCREMENTAL_CMD "git blame --incremental %s %s"
3375 blame_open(struct view *view)
3377 char path[SIZEOF_STR];
3378 char ref[SIZEOF_STR] = "";
3380 if (sq_quote(path, 0, opt_file) >= sizeof(path))
3383 if (*opt_ref && sq_quote(ref, 0, opt_ref) >= sizeof(ref))
3387 if (!string_format(view->cmd, BLAME_CAT_FILE_CMD, ref, path))
3390 view->pipe = fopen(opt_file, "r");
3392 !string_format(view->cmd, BLAME_CAT_FILE_CMD, "HEAD", path))
3397 view->pipe = popen(view->cmd, "r");
3401 if (!string_format(view->cmd, BLAME_INCREMENTAL_CMD, ref, path))
3404 string_format(view->ref, "%s ...", opt_file);
3405 string_copy_rev(view->vid, opt_file);
3406 set_nonblocking_input(TRUE);
3411 for (i = 0; i < view->lines; i++)
3412 free(view->line[i].data);
3416 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
3417 view->offset = view->lines = view->lineno = 0;
3419 view->start_time = time(NULL);
3424 static struct blame_commit *
3425 get_blame_commit(struct view *view, const char *id)
3429 for (i = 0; i < view->lines; i++) {
3430 struct blame *blame = view->line[i].data;
3435 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3436 return blame->commit;
3440 struct blame_commit *commit = calloc(1, sizeof(*commit));
3443 string_ncopy(commit->id, id, SIZEOF_REV);
3449 parse_number(char **posref, size_t *number, size_t min, size_t max)
3451 char *pos = *posref;
3454 pos = strchr(pos + 1, ' ');
3455 if (!pos || !isdigit(pos[1]))
3457 *number = atoi(pos + 1);
3458 if (*number < min || *number > max)
3465 static struct blame_commit *
3466 parse_blame_commit(struct view *view, char *text, int *blamed)
3468 struct blame_commit *commit;
3469 struct blame *blame;
3470 char *pos = text + SIZEOF_REV - 1;
3474 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3477 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3478 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3481 commit = get_blame_commit(view, text);
3487 struct line *line = &view->line[lineno + group - 1];
3490 blame->commit = commit;
3491 blame->header = !group;
3499 blame_read_file(struct view *view, char *line)
3504 if (view->lines > 0)
3505 pipe = popen(view->cmd, "r");
3506 else if (!view->parent)
3507 die("No blame exist for %s", view->vid);
3510 report("Failed to load blame data");
3519 size_t linelen = strlen(line);
3520 struct blame *blame = malloc(sizeof(*blame) + linelen);
3525 blame->commit = NULL;
3526 strncpy(blame->text, line, linelen);
3527 blame->text[linelen] = 0;
3528 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3533 match_blame_header(const char *name, char **line)
3535 size_t namelen = strlen(name);
3536 bool matched = !strncmp(name, *line, namelen);
3545 blame_read(struct view *view, char *line)
3547 static struct blame_commit *commit = NULL;
3548 static int blamed = 0;
3549 static time_t author_time;
3552 return blame_read_file(view, line);
3558 string_format(view->ref, "%s", view->vid);
3559 if (view_is_displayed(view)) {
3560 update_view_title(view);
3561 redraw_view_from(view, 0);
3567 commit = parse_blame_commit(view, line, &blamed);
3568 string_format(view->ref, "%s %2d%%", view->vid,
3569 blamed * 100 / view->lines);
3571 } else if (match_blame_header("author ", &line)) {
3572 string_ncopy(commit->author, line, strlen(line));
3574 } else if (match_blame_header("author-time ", &line)) {
3575 author_time = (time_t) atol(line);
3577 } else if (match_blame_header("author-tz ", &line)) {
3580 tz = ('0' - line[1]) * 60 * 60 * 10;
3581 tz += ('0' - line[2]) * 60 * 60;
3582 tz += ('0' - line[3]) * 60;
3583 tz += ('0' - line[4]) * 60;
3589 gmtime_r(&author_time, &commit->time);
3591 } else if (match_blame_header("summary ", &line)) {
3592 string_ncopy(commit->title, line, strlen(line));
3594 } else if (match_blame_header("filename ", &line)) {
3595 string_ncopy(commit->filename, line, strlen(line));
3603 blame_draw(struct view *view, struct line *line, unsigned int lineno)
3605 struct blame *blame = line->data;
3609 struct tm *time = blame->commit && *blame->commit->filename
3610 ? &blame->commit->time : NULL;
3612 col += draw_date(view, time, view->width);
3613 if (col >= view->width)
3618 int max = MIN(AUTHOR_COLS - 1, view->width - col);
3620 set_view_attr(view, LINE_MAIN_AUTHOR);
3622 draw_text(view, LINE_MAIN_AUTHOR, blame->commit->author, max, TRUE);
3624 if (col >= view->width)
3626 wmove(view->win, lineno, col);
3630 int max = MIN(ID_COLS - 1, view->width - col);
3632 set_view_attr(view, LINE_BLAME_ID);
3634 draw_text(view, LINE_BLAME_ID, blame->commit->id, max, FALSE);
3636 if (col >= view->width)
3638 wmove(view->win, lineno, col);
3641 col += draw_lineno(view, lineno, view->width - col);
3642 if (col >= view->width)
3645 col += draw_text(view, LINE_DEFAULT, blame->text, view->width - col, TRUE);
3650 blame_request(struct view *view, enum request request, struct line *line)
3652 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3653 struct blame *blame = line->data;
3657 if (!blame->commit) {
3658 report("No commit loaded yet");
3662 if (!strcmp(blame->commit->id, NULL_ID)) {
3663 char path[SIZEOF_STR];
3665 if (sq_quote(path, 0, view->vid) >= sizeof(path))
3667 string_format(opt_cmd, "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s 2>/dev/null", path);
3670 open_view(view, REQ_VIEW_DIFF, flags);
3681 blame_grep(struct view *view, struct line *line)
3683 struct blame *blame = line->data;
3684 struct blame_commit *commit = blame->commit;
3687 #define MATCH(text, on) \
3688 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3691 char buf[DATE_COLS + 1];
3693 if (MATCH(commit->title, 1) ||
3694 MATCH(commit->author, opt_author) ||
3695 MATCH(commit->id, opt_date))
3698 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
3703 return MATCH(blame->text, 1);
3709 blame_select(struct view *view, struct line *line)
3711 struct blame *blame = line->data;
3712 struct blame_commit *commit = blame->commit;
3717 if (!strcmp(commit->id, NULL_ID))
3718 string_ncopy(ref_commit, "HEAD", 4);
3720 string_copy_rev(ref_commit, commit->id);
3723 static struct view_ops blame_ops = {
3741 char rev[SIZEOF_REV];
3742 char name[SIZEOF_STR];
3746 char rev[SIZEOF_REV];
3747 char name[SIZEOF_STR];
3751 static char status_onbranch[SIZEOF_STR];
3752 static struct status stage_status;
3753 static enum line_type stage_line_type;
3755 /* Get fields from the diff line:
3756 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3759 status_get_diff(struct status *file, char *buf, size_t bufsize)
3761 char *old_mode = buf + 1;
3762 char *new_mode = buf + 8;
3763 char *old_rev = buf + 15;
3764 char *new_rev = buf + 56;
3765 char *status = buf + 97;
3768 old_mode[-1] != ':' ||
3769 new_mode[-1] != ' ' ||
3770 old_rev[-1] != ' ' ||
3771 new_rev[-1] != ' ' ||
3775 file->status = *status;
3777 string_copy_rev(file->old.rev, old_rev);
3778 string_copy_rev(file->new.rev, new_rev);
3780 file->old.mode = strtoul(old_mode, NULL, 8);
3781 file->new.mode = strtoul(new_mode, NULL, 8);
3783 file->old.name[0] = file->new.name[0] = 0;
3789 status_run(struct view *view, const char cmd[], char status, enum line_type type)
3791 struct status *file = NULL;
3792 struct status *unmerged = NULL;
3793 char buf[SIZEOF_STR * 4];
3797 pipe = popen(cmd, "r");
3801 add_line_data(view, NULL, type);
3803 while (!feof(pipe) && !ferror(pipe)) {
3807 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3810 bufsize += readsize;
3812 /* Process while we have NUL chars. */
3813 while ((sep = memchr(buf, 0, bufsize))) {
3814 size_t sepsize = sep - buf + 1;
3817 if (!realloc_lines(view, view->line_size + 1))
3820 file = calloc(1, sizeof(*file));
3824 add_line_data(view, file, type);
3827 /* Parse diff info part. */
3829 file->status = status;
3831 string_copy(file->old.rev, NULL_ID);
3833 } else if (!file->status) {
3834 if (!status_get_diff(file, buf, sepsize))
3838 memmove(buf, sep + 1, bufsize);
3840 sep = memchr(buf, 0, bufsize);
3843 sepsize = sep - buf + 1;
3845 /* Collapse all 'M'odified entries that
3846 * follow a associated 'U'nmerged entry.
3848 if (file->status == 'U') {
3851 } else if (unmerged) {
3852 int collapse = !strcmp(buf, unmerged->new.name);
3863 /* Grab the old name for rename/copy. */
3864 if (!*file->old.name &&
3865 (file->status == 'R' || file->status == 'C')) {
3866 sepsize = sep - buf + 1;
3867 string_ncopy(file->old.name, buf, sepsize);
3869 memmove(buf, sep + 1, bufsize);
3871 sep = memchr(buf, 0, bufsize);
3874 sepsize = sep - buf + 1;
3877 /* git-ls-files just delivers a NUL separated
3878 * list of file names similar to the second half
3879 * of the git-diff-* output. */
3880 string_ncopy(file->new.name, buf, sepsize);
3881 if (!*file->old.name)
3882 string_copy(file->old.name, file->new.name);
3884 memmove(buf, sep + 1, bufsize);
3895 if (!view->line[view->lines - 1].data)
3896 add_line_data(view, NULL, LINE_STAT_NONE);
3902 /* Don't show unmerged entries in the staged section. */
3903 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD"
3904 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
3905 #define STATUS_LIST_OTHER_CMD \
3906 "git ls-files -z --others --exclude-per-directory=.gitignore"
3907 #define STATUS_LIST_NO_HEAD_CMD \
3908 "git ls-files -z --cached --exclude-per-directory=.gitignore"
3910 #define STATUS_DIFF_INDEX_SHOW_CMD \
3911 "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null"
3913 #define STATUS_DIFF_FILES_SHOW_CMD \
3914 "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null"
3916 #define STATUS_DIFF_NO_HEAD_SHOW_CMD \
3917 "git diff --no-color --patch-with-stat /dev/null %s 2>/dev/null"
3919 /* First parse staged info using git-diff-index(1), then parse unstaged
3920 * info using git-diff-files(1), and finally untracked files using
3921 * git-ls-files(1). */
3923 status_open(struct view *view)
3925 struct stat statbuf;
3926 char exclude[SIZEOF_STR];
3927 char indexcmd[SIZEOF_STR] = STATUS_DIFF_INDEX_CMD;
3928 char othercmd[SIZEOF_STR] = STATUS_LIST_OTHER_CMD;
3929 unsigned long prev_lineno = view->lineno;
3930 char indexstatus = 0;
3933 for (i = 0; i < view->lines; i++)
3934 free(view->line[i].data);
3936 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
3939 if (!realloc_lines(view, view->line_size + 7))
3942 add_line_data(view, NULL, LINE_STAT_HEAD);
3944 string_copy(status_onbranch, "Initial commit");
3945 else if (!*opt_head)
3946 string_copy(status_onbranch, "Not currently on any branch");
3947 else if (!string_format(status_onbranch, "On branch %s", opt_head))
3951 string_copy(indexcmd, STATUS_LIST_NO_HEAD_CMD);
3955 if (!string_format(exclude, "%s/info/exclude", opt_git_dir))
3958 if (stat(exclude, &statbuf) >= 0) {
3959 size_t cmdsize = strlen(othercmd);
3961 if (!string_format_from(othercmd, &cmdsize, " %s", "--exclude-from=") ||
3962 sq_quote(othercmd, cmdsize, exclude) >= sizeof(othercmd))
3965 cmdsize = strlen(indexcmd);
3967 (!string_format_from(indexcmd, &cmdsize, " %s", "--exclude-from=") ||
3968 sq_quote(indexcmd, cmdsize, exclude) >= sizeof(indexcmd)))
3972 system("git update-index -q --refresh >/dev/null 2>/dev/null");
3974 if (!status_run(view, indexcmd, indexstatus, LINE_STAT_STAGED) ||
3975 !status_run(view, STATUS_DIFF_FILES_CMD, 0, LINE_STAT_UNSTAGED) ||
3976 !status_run(view, othercmd, '?', LINE_STAT_UNTRACKED))
3979 /* If all went well restore the previous line number to stay in
3980 * the context or select a line with something that can be
3982 if (prev_lineno >= view->lines)
3983 prev_lineno = view->lines - 1;
3984 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
3986 while (prev_lineno > 0 && !view->line[prev_lineno].data)
3989 /* If the above fails, always skip the "On branch" line. */
3990 if (prev_lineno < view->lines)
3991 view->lineno = prev_lineno;
3995 if (view->lineno < view->offset)
3996 view->offset = view->lineno;
3997 else if (view->offset + view->height <= view->lineno)
3998 view->offset = view->lineno - view->height + 1;
4004 status_draw(struct view *view, struct line *line, unsigned int lineno)
4006 struct status *status = line->data;
4007 enum line_type type;
4012 switch (line->type) {
4013 case LINE_STAT_STAGED:
4014 type = LINE_STAT_SECTION;
4015 text = "Changes to be committed:";
4018 case LINE_STAT_UNSTAGED:
4019 type = LINE_STAT_SECTION;
4020 text = "Changed but not updated:";
4023 case LINE_STAT_UNTRACKED:
4024 type = LINE_STAT_SECTION;
4025 text = "Untracked files:";
4028 case LINE_STAT_NONE:
4029 type = LINE_DEFAULT;
4030 text = " (no files)";
4033 case LINE_STAT_HEAD:
4034 type = LINE_STAT_HEAD;
4035 text = status_onbranch;
4042 char buf[] = { status->status, ' ', ' ', ' ', 0 };
4044 col += draw_text(view, line->type, buf, view->width, TRUE);
4045 type = LINE_DEFAULT;
4046 text = status->new.name;
4049 draw_text(view, type, text, view->width - col, TRUE);
4054 status_enter(struct view *view, struct line *line)
4056 struct status *status = line->data;
4057 char oldpath[SIZEOF_STR] = "";
4058 char newpath[SIZEOF_STR] = "";
4061 enum open_flags split;
4063 if (line->type == LINE_STAT_NONE ||
4064 (!status && line[1].type == LINE_STAT_NONE)) {
4065 report("No file to diff");
4070 if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath))
4072 /* Diffs for unmerged entries are empty when pasing the
4073 * new path, so leave it empty. */
4074 if (status->status != 'U' &&
4075 sq_quote(newpath, 0, status->new.name) >= sizeof(newpath))
4080 line->type != LINE_STAT_UNTRACKED &&
4081 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
4084 switch (line->type) {
4085 case LINE_STAT_STAGED:
4087 if (!string_format_from(opt_cmd, &cmdsize,
4088 STATUS_DIFF_NO_HEAD_SHOW_CMD,
4092 if (!string_format_from(opt_cmd, &cmdsize,
4093 STATUS_DIFF_INDEX_SHOW_CMD,
4099 info = "Staged changes to %s";
4101 info = "Staged changes";
4104 case LINE_STAT_UNSTAGED:
4105 if (!string_format_from(opt_cmd, &cmdsize,
4106 STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath))
4109 info = "Unstaged changes to %s";
4111 info = "Unstaged changes";
4114 case LINE_STAT_UNTRACKED:
4119 report("No file to show");
4123 opt_pipe = fopen(status->new.name, "r");
4124 info = "Untracked file %s";
4127 case LINE_STAT_HEAD:
4131 die("line type %d not handled in switch", line->type);
4134 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4135 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | split);
4136 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4138 stage_status = *status;
4140 memset(&stage_status, 0, sizeof(stage_status));
4143 stage_line_type = line->type;
4144 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4151 status_exists(struct status *status, enum line_type type)
4153 struct view *view = VIEW(REQ_VIEW_STATUS);
4156 for (line = view->line; line < view->line + view->lines; line++) {
4157 struct status *pos = line->data;
4159 if (line->type == type && pos &&
4160 !strcmp(status->new.name, pos->new.name))
4169 status_update_prepare(enum line_type type)
4171 char cmd[SIZEOF_STR];
4175 type != LINE_STAT_UNTRACKED &&
4176 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4180 case LINE_STAT_STAGED:
4181 string_add(cmd, cmdsize, "git update-index -z --index-info");
4184 case LINE_STAT_UNSTAGED:
4185 case LINE_STAT_UNTRACKED:
4186 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
4190 die("line type %d not handled in switch", type);
4193 return popen(cmd, "w");
4197 status_update_write(FILE *pipe, struct status *status, enum line_type type)
4199 char buf[SIZEOF_STR];
4204 case LINE_STAT_STAGED:
4205 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4208 status->old.name, 0))
4212 case LINE_STAT_UNSTAGED:
4213 case LINE_STAT_UNTRACKED:
4214 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4219 die("line type %d not handled in switch", type);
4222 while (!ferror(pipe) && written < bufsize) {
4223 written += fwrite(buf + written, 1, bufsize - written, pipe);
4226 return written == bufsize;
4230 status_update_file(struct status *status, enum line_type type)
4232 FILE *pipe = status_update_prepare(type);
4238 result = status_update_write(pipe, status, type);
4244 status_update_files(struct view *view, struct line *line)
4246 FILE *pipe = status_update_prepare(line->type);
4248 struct line *pos = view->line + view->lines;
4255 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4258 for (file = 0, done = 0; result && file < files; line++, file++) {
4259 int almost_done = file * 100 / files;
4261 if (almost_done > done) {
4263 string_format(view->ref, "updating file %u of %u (%d%% done)",
4265 update_view_title(view);
4267 result = status_update_write(pipe, line->data, line->type);
4275 status_update(struct view *view)
4277 struct line *line = &view->line[view->lineno];
4279 assert(view->lines);
4282 /* This should work even for the "On branch" line. */
4283 if (line < view->line + view->lines && !line[1].data) {
4284 report("Nothing to update");
4288 if (!status_update_files(view, line + 1)) {
4289 report("Failed to update file status");
4293 } else if (!status_update_file(line->data, line->type)) {
4294 report("Failed to update file status");
4302 status_request(struct view *view, enum request request, struct line *line)
4304 struct status *status = line->data;
4307 case REQ_STATUS_UPDATE:
4308 if (!status_update(view))
4312 case REQ_STATUS_MERGE:
4313 if (!status || status->status != 'U') {
4314 report("Merging only possible for files with unmerged status ('U').");
4317 open_mergetool(status->new.name);
4324 open_editor(status->status != '?', status->new.name);
4327 case REQ_VIEW_BLAME:
4329 string_copy(opt_file, status->new.name);
4335 /* After returning the status view has been split to
4336 * show the stage view. No further reloading is
4338 status_enter(view, line);
4342 /* Simply reload the view. */
4349 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4355 status_select(struct view *view, struct line *line)
4357 struct status *status = line->data;
4358 char file[SIZEOF_STR] = "all files";
4362 if (status && !string_format(file, "'%s'", status->new.name))
4365 if (!status && line[1].type == LINE_STAT_NONE)
4368 switch (line->type) {
4369 case LINE_STAT_STAGED:
4370 text = "Press %s to unstage %s for commit";
4373 case LINE_STAT_UNSTAGED:
4374 text = "Press %s to stage %s for commit";
4377 case LINE_STAT_UNTRACKED:
4378 text = "Press %s to stage %s for addition";
4381 case LINE_STAT_HEAD:
4382 case LINE_STAT_NONE:
4383 text = "Nothing to update";
4387 die("line type %d not handled in switch", line->type);
4390 if (status && status->status == 'U') {
4391 text = "Press %s to resolve conflict in %s";
4392 key = get_key(REQ_STATUS_MERGE);
4395 key = get_key(REQ_STATUS_UPDATE);
4398 string_format(view->ref, text, key, file);
4402 status_grep(struct view *view, struct line *line)
4404 struct status *status = line->data;
4405 enum { S_STATUS, S_NAME, S_END } state;
4412 for (state = S_STATUS; state < S_END; state++) {
4416 case S_NAME: text = status->new.name; break;
4418 buf[0] = status->status;
4426 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4433 static struct view_ops status_ops = {
4445 stage_diff_line(FILE *pipe, struct line *line)
4447 char *buf = line->data;
4448 size_t bufsize = strlen(buf);
4451 while (!ferror(pipe) && written < bufsize) {
4452 written += fwrite(buf + written, 1, bufsize - written, pipe);
4457 return written == bufsize;
4461 stage_diff_write(FILE *pipe, struct line *line, struct line *end)
4463 while (line < end) {
4464 if (!stage_diff_line(pipe, line++))
4466 if (line->type == LINE_DIFF_CHUNK ||
4467 line->type == LINE_DIFF_HEADER)
4474 static struct line *
4475 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4477 for (; view->line < line; line--)
4478 if (line->type == type)
4485 stage_update_chunk(struct view *view, struct line *chunk)
4487 char cmd[SIZEOF_STR];
4489 struct line *diff_hdr;
4492 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4497 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4500 if (!string_format_from(cmd, &cmdsize,
4501 "git apply --whitespace=nowarn --cached %s - && "
4502 "git update-index -q --unmerged --refresh 2>/dev/null",
4503 stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
4506 pipe = popen(cmd, "w");
4510 if (!stage_diff_write(pipe, diff_hdr, chunk) ||
4511 !stage_diff_write(pipe, chunk, view->line + view->lines))
4516 return chunk ? TRUE : FALSE;
4520 stage_update(struct view *view, struct line *line)
4522 struct line *chunk = NULL;
4524 if (!opt_no_head && stage_line_type != LINE_STAT_UNTRACKED)
4525 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4528 if (!stage_update_chunk(view, chunk)) {
4529 report("Failed to apply chunk");
4533 } else if (!stage_status.status) {
4534 view = VIEW(REQ_VIEW_STATUS);
4536 for (line = view->line; line < view->line + view->lines; line++)
4537 if (line->type == stage_line_type)
4540 if (!status_update_files(view, line + 1)) {
4541 report("Failed to update files");
4545 } else if (!status_update_file(&stage_status, stage_line_type)) {
4546 report("Failed to update file");
4554 stage_request(struct view *view, enum request request, struct line *line)
4557 case REQ_STATUS_UPDATE:
4558 if (!stage_update(view, line))
4563 if (!stage_status.new.name[0])
4566 open_editor(stage_status.status != '?', stage_status.new.name);
4570 /* Reload everything ... */
4573 case REQ_VIEW_BLAME:
4574 if (stage_status.new.name[0]) {
4575 string_copy(opt_file, stage_status.new.name);
4581 return pager_request(view, request, line);
4587 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4589 /* Check whether the staged entry still exists, and close the
4590 * stage view if it doesn't. */
4591 if (!status_exists(&stage_status, stage_line_type))
4592 return REQ_VIEW_CLOSE;
4594 if (stage_line_type == LINE_STAT_UNTRACKED)
4595 opt_pipe = fopen(stage_status.new.name, "r");
4597 string_copy(opt_cmd, view->cmd);
4598 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4603 static struct view_ops stage_ops = {
4619 char id[SIZEOF_REV]; /* SHA1 ID. */
4620 char title[128]; /* First line of the commit message. */
4621 char author[75]; /* Author of the commit. */
4622 struct tm time; /* Date from the author ident. */
4623 struct ref **refs; /* Repository references. */
4624 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
4625 size_t graph_size; /* The width of the graph array. */
4626 bool has_parents; /* Rewritten --parents seen. */
4629 /* Size of rev graph with no "padding" columns */
4630 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
4633 struct rev_graph *prev, *next, *parents;
4634 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
4636 struct commit *commit;
4638 unsigned int boundary:1;
4641 /* Parents of the commit being visualized. */
4642 static struct rev_graph graph_parents[4];
4644 /* The current stack of revisions on the graph. */
4645 static struct rev_graph graph_stacks[4] = {
4646 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
4647 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
4648 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
4649 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
4653 graph_parent_is_merge(struct rev_graph *graph)
4655 return graph->parents->size > 1;
4659 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
4661 struct commit *commit = graph->commit;
4663 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
4664 commit->graph[commit->graph_size++] = symbol;
4668 done_rev_graph(struct rev_graph *graph)
4670 if (graph_parent_is_merge(graph) &&
4671 graph->pos < graph->size - 1 &&
4672 graph->next->size == graph->size + graph->parents->size - 1) {
4673 size_t i = graph->pos + graph->parents->size - 1;
4675 graph->commit->graph_size = i * 2;
4676 while (i < graph->next->size - 1) {
4677 append_to_rev_graph(graph, ' ');
4678 append_to_rev_graph(graph, '\\');
4683 graph->size = graph->pos = 0;
4684 graph->commit = NULL;
4685 memset(graph->parents, 0, sizeof(*graph->parents));
4689 push_rev_graph(struct rev_graph *graph, char *parent)
4693 /* "Collapse" duplicate parents lines.
4695 * FIXME: This needs to also update update the drawn graph but
4696 * for now it just serves as a method for pruning graph lines. */
4697 for (i = 0; i < graph->size; i++)
4698 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
4701 if (graph->size < SIZEOF_REVITEMS) {
4702 string_copy_rev(graph->rev[graph->size++], parent);
4707 get_rev_graph_symbol(struct rev_graph *graph)
4711 if (graph->boundary)
4712 symbol = REVGRAPH_BOUND;
4713 else if (graph->parents->size == 0)
4714 symbol = REVGRAPH_INIT;
4715 else if (graph_parent_is_merge(graph))
4716 symbol = REVGRAPH_MERGE;
4717 else if (graph->pos >= graph->size)
4718 symbol = REVGRAPH_BRANCH;
4720 symbol = REVGRAPH_COMMIT;
4726 draw_rev_graph(struct rev_graph *graph)
4729 chtype separator, line;
4731 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
4732 static struct rev_filler fillers[] = {
4738 chtype symbol = get_rev_graph_symbol(graph);
4739 struct rev_filler *filler;
4742 if (opt_line_graphics)
4743 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
4745 filler = &fillers[DEFAULT];
4747 for (i = 0; i < graph->pos; i++) {
4748 append_to_rev_graph(graph, filler->line);
4749 if (graph_parent_is_merge(graph->prev) &&
4750 graph->prev->pos == i)
4751 filler = &fillers[RSHARP];
4753 append_to_rev_graph(graph, filler->separator);
4756 /* Place the symbol for this revision. */
4757 append_to_rev_graph(graph, symbol);
4759 if (graph->prev->size > graph->size)
4760 filler = &fillers[RDIAG];
4762 filler = &fillers[DEFAULT];
4766 for (; i < graph->size; i++) {
4767 append_to_rev_graph(graph, filler->separator);
4768 append_to_rev_graph(graph, filler->line);
4769 if (graph_parent_is_merge(graph->prev) &&
4770 i < graph->prev->pos + graph->parents->size)
4771 filler = &fillers[RSHARP];
4772 if (graph->prev->size > graph->size)
4773 filler = &fillers[LDIAG];
4776 if (graph->prev->size > graph->size) {
4777 append_to_rev_graph(graph, filler->separator);
4778 if (filler->line != ' ')
4779 append_to_rev_graph(graph, filler->line);
4783 /* Prepare the next rev graph */
4785 prepare_rev_graph(struct rev_graph *graph)
4789 /* First, traverse all lines of revisions up to the active one. */
4790 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
4791 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
4794 push_rev_graph(graph->next, graph->rev[graph->pos]);
4797 /* Interleave the new revision parent(s). */
4798 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
4799 push_rev_graph(graph->next, graph->parents->rev[i]);
4801 /* Lastly, put any remaining revisions. */
4802 for (i = graph->pos + 1; i < graph->size; i++)
4803 push_rev_graph(graph->next, graph->rev[i]);
4807 update_rev_graph(struct rev_graph *graph)
4809 /* If this is the finalizing update ... */
4811 prepare_rev_graph(graph);
4813 /* Graph visualization needs a one rev look-ahead,
4814 * so the first update doesn't visualize anything. */
4815 if (!graph->prev->commit)
4818 draw_rev_graph(graph->prev);
4819 done_rev_graph(graph->prev->prev);
4828 main_draw(struct view *view, struct line *line, unsigned int lineno)
4830 struct commit *commit = line->data;
4833 if (!*commit->author)
4837 col += draw_date(view, &commit->time, view->width);
4838 if (col >= view->width)
4845 max_len = view->width - col;
4846 if (max_len > AUTHOR_COLS - 1)
4847 max_len = AUTHOR_COLS - 1;
4848 draw_text(view, LINE_MAIN_AUTHOR, commit->author, max_len, TRUE);
4850 if (col >= view->width)
4854 if (opt_rev_graph && commit->graph_size) {
4855 size_t graph_size = view->width - col;
4858 set_view_attr(view, LINE_MAIN_REVGRAPH);
4859 wmove(view->win, lineno, col);
4860 if (graph_size > commit->graph_size)
4861 graph_size = commit->graph_size;
4862 /* Using waddch() instead of waddnstr() ensures that
4863 * they'll be rendered correctly for the cursor line. */
4864 for (i = 0; i < graph_size; i++)
4865 waddch(view->win, commit->graph[i]);
4867 col += commit->graph_size + 1;
4868 if (col >= view->width)
4870 waddch(view->win, ' ');
4873 set_view_attr(view, LINE_DEFAULT);
4874 wmove(view->win, lineno, col);
4876 if (opt_show_refs && commit->refs) {
4880 enum line_type type;
4882 if (commit->refs[i]->head)
4883 type = LINE_MAIN_HEAD;
4884 else if (commit->refs[i]->ltag)
4885 type = LINE_MAIN_LOCAL_TAG;
4886 else if (commit->refs[i]->tag)
4887 type = LINE_MAIN_TAG;
4888 else if (commit->refs[i]->tracked)
4889 type = LINE_MAIN_TRACKED;
4890 else if (commit->refs[i]->remote)
4891 type = LINE_MAIN_REMOTE;
4893 type = LINE_MAIN_REF;
4895 col += draw_text(view, type, "[", view->width - col, TRUE);
4896 col += draw_text(view, type, commit->refs[i]->name, view->width - col, TRUE);
4897 col += draw_text(view, type, "]", view->width - col, TRUE);
4899 col += draw_text(view, LINE_DEFAULT, " ", view->width - col, TRUE);
4900 if (col >= view->width)
4902 } while (commit->refs[i++]->next);
4905 draw_text(view, LINE_DEFAULT, commit->title, view->width - col, TRUE);
4909 /* Reads git log --pretty=raw output and parses it into the commit struct. */
4911 main_read(struct view *view, char *line)
4913 static struct rev_graph *graph = graph_stacks;
4914 enum line_type type;
4915 struct commit *commit;
4918 if (!view->lines && !view->parent)
4919 die("No revisions match the given arguments.");
4920 update_rev_graph(graph);
4924 type = get_line_type(line);
4925 if (type == LINE_COMMIT) {
4926 commit = calloc(1, sizeof(struct commit));
4930 line += STRING_SIZE("commit ");
4932 graph->boundary = 1;
4936 string_copy_rev(commit->id, line);
4937 commit->refs = get_refs(commit->id);
4938 graph->commit = commit;
4939 add_line_data(view, commit, LINE_MAIN_COMMIT);
4941 while ((line = strchr(line, ' '))) {
4943 push_rev_graph(graph->parents, line);
4944 commit->has_parents = TRUE;
4951 commit = view->line[view->lines - 1].data;
4955 if (commit->has_parents)
4957 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
4962 /* Parse author lines where the name may be empty:
4963 * author <email@address.tld> 1138474660 +0100
4965 char *ident = line + STRING_SIZE("author ");
4966 char *nameend = strchr(ident, '<');
4967 char *emailend = strchr(ident, '>');
4969 if (!nameend || !emailend)
4972 update_rev_graph(graph);
4973 graph = graph->next;
4975 *nameend = *emailend = 0;
4976 ident = chomp_string(ident);
4978 ident = chomp_string(nameend + 1);
4983 string_ncopy(commit->author, ident, strlen(ident));
4985 /* Parse epoch and timezone */
4986 if (emailend[1] == ' ') {
4987 char *secs = emailend + 2;
4988 char *zone = strchr(secs, ' ');
4989 time_t time = (time_t) atol(secs);
4991 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
4995 tz = ('0' - zone[1]) * 60 * 60 * 10;
4996 tz += ('0' - zone[2]) * 60 * 60;
4997 tz += ('0' - zone[3]) * 60;
4998 tz += ('0' - zone[4]) * 60;
5006 gmtime_r(&time, &commit->time);
5011 /* Fill in the commit title if it has not already been set. */
5012 if (commit->title[0])
5015 /* Require titles to start with a non-space character at the
5016 * offset used by git log. */
5017 if (strncmp(line, " ", 4))
5020 /* Well, if the title starts with a whitespace character,
5021 * try to be forgiving. Otherwise we end up with no title. */
5022 while (isspace(*line))
5026 /* FIXME: More graceful handling of titles; append "..." to
5027 * shortened titles, etc. */
5029 string_ncopy(commit->title, line, strlen(line));
5036 main_request(struct view *view, enum request request, struct line *line)
5038 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5040 if (request == REQ_ENTER)
5041 open_view(view, REQ_VIEW_DIFF, flags);
5049 grep_refs(struct ref **refs, regex_t *regex)
5057 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5059 } while (refs[i++]->next);
5065 main_grep(struct view *view, struct line *line)
5067 struct commit *commit = line->data;
5068 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5069 char buf[DATE_COLS + 1];
5072 for (state = S_TITLE; state < S_END; state++) {
5076 case S_TITLE: text = commit->title; break;
5080 text = commit->author;
5085 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5092 if (grep_refs(commit->refs, view->regex) == TRUE)
5099 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5107 main_select(struct view *view, struct line *line)
5109 struct commit *commit = line->data;
5111 string_copy_rev(view->ref, commit->id);
5112 string_copy_rev(ref_commit, view->ref);
5115 static struct view_ops main_ops = {
5127 * Unicode / UTF-8 handling
5129 * NOTE: Much of the following code for dealing with unicode is derived from
5130 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5131 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5134 /* I've (over)annotated a lot of code snippets because I am not entirely
5135 * confident that the approach taken by this small UTF-8 interface is correct.
5139 unicode_width(unsigned long c)
5142 (c <= 0x115f /* Hangul Jamo */
5145 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5147 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5148 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5149 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5150 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5151 || (c >= 0xffe0 && c <= 0xffe6)
5152 || (c >= 0x20000 && c <= 0x2fffd)
5153 || (c >= 0x30000 && c <= 0x3fffd)))
5157 return opt_tab_size;
5162 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5163 * Illegal bytes are set one. */
5164 static const unsigned char utf8_bytes[256] = {
5165 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,
5166 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,
5167 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,
5168 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,
5169 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,
5170 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5171 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,
5172 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,
5175 /* Decode UTF-8 multi-byte representation into a unicode character. */
5176 static inline unsigned long
5177 utf8_to_unicode(const char *string, size_t length)
5179 unsigned long unicode;
5183 unicode = string[0];
5186 unicode = (string[0] & 0x1f) << 6;
5187 unicode += (string[1] & 0x3f);
5190 unicode = (string[0] & 0x0f) << 12;
5191 unicode += ((string[1] & 0x3f) << 6);
5192 unicode += (string[2] & 0x3f);
5195 unicode = (string[0] & 0x0f) << 18;
5196 unicode += ((string[1] & 0x3f) << 12);
5197 unicode += ((string[2] & 0x3f) << 6);
5198 unicode += (string[3] & 0x3f);
5201 unicode = (string[0] & 0x0f) << 24;
5202 unicode += ((string[1] & 0x3f) << 18);
5203 unicode += ((string[2] & 0x3f) << 12);
5204 unicode += ((string[3] & 0x3f) << 6);
5205 unicode += (string[4] & 0x3f);
5208 unicode = (string[0] & 0x01) << 30;
5209 unicode += ((string[1] & 0x3f) << 24);
5210 unicode += ((string[2] & 0x3f) << 18);
5211 unicode += ((string[3] & 0x3f) << 12);
5212 unicode += ((string[4] & 0x3f) << 6);
5213 unicode += (string[5] & 0x3f);
5216 die("Invalid unicode length");
5219 /* Invalid characters could return the special 0xfffd value but NUL
5220 * should be just as good. */
5221 return unicode > 0xffff ? 0 : unicode;
5224 /* Calculates how much of string can be shown within the given maximum width
5225 * and sets trimmed parameter to non-zero value if all of string could not be
5226 * shown. If the reserve flag is TRUE, it will reserve at least one
5227 * trailing character, which can be useful when drawing a delimiter.
5229 * Returns the number of bytes to output from string to satisfy max_width. */
5231 utf8_length(const char *string, size_t max_width, int *trimmed, bool reserve)
5233 const char *start = string;
5234 const char *end = strchr(string, '\0');
5235 unsigned char last_bytes = 0;
5240 while (string < end) {
5241 int c = *(unsigned char *) string;
5242 unsigned char bytes = utf8_bytes[c];
5244 unsigned long unicode;
5246 if (string + bytes > end)
5249 /* Change representation to figure out whether
5250 * it is a single- or double-width character. */
5252 unicode = utf8_to_unicode(string, bytes);
5253 /* FIXME: Graceful handling of invalid unicode character. */
5257 ucwidth = unicode_width(unicode);
5259 if (width > max_width) {
5261 if (reserve && width - ucwidth == max_width) {
5262 string -= last_bytes;
5271 return string - start;
5279 /* Whether or not the curses interface has been initialized. */
5280 static bool cursed = FALSE;
5282 /* The status window is used for polling keystrokes. */
5283 static WINDOW *status_win;
5285 static bool status_empty = TRUE;
5287 /* Update status and title window. */
5289 report(const char *msg, ...)
5291 struct view *view = display[current_view];
5297 char buf[SIZEOF_STR];
5300 va_start(args, msg);
5301 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5302 buf[sizeof(buf) - 1] = 0;
5303 buf[sizeof(buf) - 2] = '.';
5304 buf[sizeof(buf) - 3] = '.';
5305 buf[sizeof(buf) - 4] = '.';
5311 if (!status_empty || *msg) {
5314 va_start(args, msg);
5316 wmove(status_win, 0, 0);
5318 vwprintw(status_win, msg, args);
5319 status_empty = FALSE;
5321 status_empty = TRUE;
5323 wclrtoeol(status_win);
5324 wrefresh(status_win);
5329 update_view_title(view);
5330 update_display_cursor(view);
5333 /* Controls when nodelay should be in effect when polling user input. */
5335 set_nonblocking_input(bool loading)
5337 static unsigned int loading_views;
5339 if ((loading == FALSE && loading_views-- == 1) ||
5340 (loading == TRUE && loading_views++ == 0))
5341 nodelay(status_win, loading);
5349 /* Initialize the curses library */
5350 if (isatty(STDIN_FILENO)) {
5351 cursed = !!initscr();
5353 /* Leave stdin and stdout alone when acting as a pager. */
5354 FILE *io = fopen("/dev/tty", "r+");
5357 die("Failed to open /dev/tty");
5358 cursed = !!newterm(NULL, io, io);
5362 die("Failed to initialize curses");
5364 nonl(); /* Tell curses not to do NL->CR/NL on output */
5365 cbreak(); /* Take input chars one at a time, no wait for \n */
5366 noecho(); /* Don't echo input */
5367 leaveok(stdscr, TRUE);
5372 getmaxyx(stdscr, y, x);
5373 status_win = newwin(1, 0, y - 1, 0);
5375 die("Failed to create status window");
5377 /* Enable keyboard mapping */
5378 keypad(status_win, TRUE);
5379 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5381 TABSIZE = opt_tab_size;
5382 if (opt_line_graphics) {
5383 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5388 read_prompt(const char *prompt)
5390 enum { READING, STOP, CANCEL } status = READING;
5391 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
5394 while (status == READING) {
5400 foreach_view (view, i)
5405 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5406 wclrtoeol(status_win);
5408 /* Refresh, accept single keystroke of input */
5409 key = wgetch(status_win);
5414 status = pos ? STOP : CANCEL;
5432 if (pos >= sizeof(buf)) {
5433 report("Input string too long");
5438 buf[pos++] = (char) key;
5442 /* Clear the status window */
5443 status_empty = FALSE;
5446 if (status == CANCEL)
5455 * Repository references
5458 static struct ref *refs = NULL;
5459 static size_t refs_alloc = 0;
5460 static size_t refs_size = 0;
5462 /* Id <-> ref store */
5463 static struct ref ***id_refs = NULL;
5464 static size_t id_refs_alloc = 0;
5465 static size_t id_refs_size = 0;
5467 static struct ref **
5470 struct ref ***tmp_id_refs;
5471 struct ref **ref_list = NULL;
5472 size_t ref_list_alloc = 0;
5473 size_t ref_list_size = 0;
5476 for (i = 0; i < id_refs_size; i++)
5477 if (!strcmp(id, id_refs[i][0]->id))
5480 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
5485 id_refs = tmp_id_refs;
5487 for (i = 0; i < refs_size; i++) {
5490 if (strcmp(id, refs[i].id))
5493 tmp = realloc_items(ref_list, &ref_list_alloc,
5494 ref_list_size + 1, sizeof(*ref_list));
5502 if (ref_list_size > 0)
5503 ref_list[ref_list_size - 1]->next = 1;
5504 ref_list[ref_list_size] = &refs[i];
5506 /* XXX: The properties of the commit chains ensures that we can
5507 * safely modify the shared ref. The repo references will
5508 * always be similar for the same id. */
5509 ref_list[ref_list_size]->next = 0;
5514 id_refs[id_refs_size++] = ref_list;
5520 read_ref(char *id, size_t idlen, char *name, size_t namelen)
5525 bool remote = FALSE;
5526 bool tracked = FALSE;
5527 bool check_replace = FALSE;
5530 if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) {
5531 if (!strcmp(name + namelen - 3, "^{}")) {
5534 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
5535 check_replace = TRUE;
5541 namelen -= STRING_SIZE("refs/tags/");
5542 name += STRING_SIZE("refs/tags/");
5544 } else if (!strncmp(name, "refs/remotes/", STRING_SIZE("refs/remotes/"))) {
5546 namelen -= STRING_SIZE("refs/remotes/");
5547 name += STRING_SIZE("refs/remotes/");
5548 tracked = !strcmp(opt_remote, name);
5550 } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5551 namelen -= STRING_SIZE("refs/heads/");
5552 name += STRING_SIZE("refs/heads/");
5553 head = !strncmp(opt_head, name, namelen);
5555 } else if (!strcmp(name, "HEAD")) {
5556 opt_no_head = FALSE;
5560 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
5561 /* it's an annotated tag, replace the previous sha1 with the
5562 * resolved commit id; relies on the fact git-ls-remote lists
5563 * the commit id of an annotated tag right beofre the commit id
5565 refs[refs_size - 1].ltag = ltag;
5566 string_copy_rev(refs[refs_size - 1].id, id);
5570 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
5574 ref = &refs[refs_size++];
5575 ref->name = malloc(namelen + 1);
5579 strncpy(ref->name, name, namelen);
5580 ref->name[namelen] = 0;
5584 ref->remote = remote;
5585 ref->tracked = tracked;
5586 string_copy_rev(ref->id, id);
5594 const char *cmd_env = getenv("TIG_LS_REMOTE");
5595 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
5597 return read_properties(popen(cmd, "r"), "\t", read_ref);
5601 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
5603 if (!strcmp(name, "i18n.commitencoding"))
5604 string_ncopy(opt_encoding, value, valuelen);
5606 if (!strcmp(name, "core.editor"))
5607 string_ncopy(opt_editor, value, valuelen);
5609 /* branch.<head>.remote */
5611 !strncmp(name, "branch.", 7) &&
5612 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5613 !strcmp(name + 7 + strlen(opt_head), ".remote"))
5614 string_ncopy(opt_remote, value, valuelen);
5616 if (*opt_head && *opt_remote &&
5617 !strncmp(name, "branch.", 7) &&
5618 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5619 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
5620 size_t from = strlen(opt_remote);
5622 if (!strncmp(value, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5623 value += STRING_SIZE("refs/heads/");
5624 valuelen -= STRING_SIZE("refs/heads/");
5627 if (!string_format_from(opt_remote, &from, "/%s", value))
5635 load_git_config(void)
5637 return read_properties(popen(GIT_CONFIG " --list", "r"),
5638 "=", read_repo_config_option);
5642 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
5644 if (!opt_git_dir[0]) {
5645 string_ncopy(opt_git_dir, name, namelen);
5647 } else if (opt_is_inside_work_tree == -1) {
5648 /* This can be 3 different values depending on the
5649 * version of git being used. If git-rev-parse does not
5650 * understand --is-inside-work-tree it will simply echo
5651 * the option else either "true" or "false" is printed.
5652 * Default to true for the unknown case. */
5653 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
5655 } else if (opt_cdup[0] == ' ') {
5656 string_ncopy(opt_cdup, name, namelen);
5658 if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5659 namelen -= STRING_SIZE("refs/heads/");
5660 name += STRING_SIZE("refs/heads/");
5661 string_ncopy(opt_head, name, namelen);
5669 load_repo_info(void)
5672 FILE *pipe = popen("(git rev-parse --git-dir --is-inside-work-tree "
5673 " --show-cdup; git symbolic-ref HEAD) 2>/dev/null", "r");
5675 /* XXX: The line outputted by "--show-cdup" can be empty so
5676 * initialize it to something invalid to make it possible to
5677 * detect whether it has been set or not. */
5680 result = read_properties(pipe, "=", read_repo_info);
5681 if (opt_cdup[0] == ' ')
5688 read_properties(FILE *pipe, const char *separators,
5689 int (*read_property)(char *, size_t, char *, size_t))
5691 char buffer[BUFSIZ];
5698 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
5703 name = chomp_string(name);
5704 namelen = strcspn(name, separators);
5706 if (name[namelen]) {
5708 value = chomp_string(name + namelen + 1);
5709 valuelen = strlen(value);
5716 state = read_property(name, namelen, value, valuelen);
5719 if (state != ERR && ferror(pipe))
5732 static void __NORETURN
5735 /* XXX: Restore tty modes and let the OS cleanup the rest! */
5741 static void __NORETURN
5742 die(const char *err, ...)
5748 va_start(args, err);
5749 fputs("tig: ", stderr);
5750 vfprintf(stderr, err, args);
5751 fputs("\n", stderr);
5758 warn(const char *msg, ...)
5762 va_start(args, msg);
5763 fputs("tig warning: ", stderr);
5764 vfprintf(stderr, msg, args);
5765 fputs("\n", stderr);
5770 main(int argc, char *argv[])
5773 enum request request;
5776 signal(SIGINT, quit);
5778 if (setlocale(LC_ALL, "")) {
5779 char *codeset = nl_langinfo(CODESET);
5781 string_ncopy(opt_codeset, codeset, strlen(codeset));
5784 if (load_repo_info() == ERR)
5785 die("Failed to load repo info.");
5787 if (load_options() == ERR)
5788 die("Failed to load user config.");
5790 if (load_git_config() == ERR)
5791 die("Failed to load repo config.");
5793 if (!parse_options(argc, argv))
5796 /* Require a git repository unless when running in pager mode. */
5797 if (!opt_git_dir[0] && opt_request != REQ_VIEW_PAGER)
5798 die("Not a git repository");
5800 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
5803 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
5804 opt_iconv = iconv_open(opt_codeset, opt_encoding);
5805 if (opt_iconv == ICONV_NONE)
5806 die("Failed to initialize character set conversion");
5809 if (*opt_git_dir && load_refs() == ERR)
5810 die("Failed to load refs.");
5812 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
5813 view->cmd_env = getenv(view->cmd_env);
5815 request = opt_request;
5819 while (view_driver(display[current_view], request)) {
5823 foreach_view (view, i)
5826 /* Refresh, accept single keystroke of input */
5827 key = wgetch(status_win);
5829 /* wgetch() with nodelay() enabled returns ERR when there's no
5836 request = get_keybinding(display[current_view]->keymap, key);
5838 /* Some low-level request handling. This keeps access to
5839 * status_win restricted. */
5843 char *cmd = read_prompt(":");
5845 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
5846 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
5847 opt_request = REQ_VIEW_DIFF;
5849 opt_request = REQ_VIEW_PAGER;
5858 case REQ_SEARCH_BACK:
5860 const char *prompt = request == REQ_SEARCH
5862 char *search = read_prompt(prompt);
5865 string_ncopy(opt_search, search, strlen(search));
5870 case REQ_SCREEN_RESIZE:
5874 getmaxyx(stdscr, height, width);
5876 /* Resize the status view and let the view driver take
5877 * care of resizing the displayed views. */
5878 wresize(status_win, 1, width);
5879 mvwin(status_win, height - 1, 0);
5880 wrefresh(status_win);