1 /* Copyright (c) 2006-2008 Jonas Fonseca <fonseca@diku.dk>
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License as
5 * published by the Free Software Foundation; either version 2 of
6 * the License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
19 #define TIG_VERSION "unknown-version"
34 #include <sys/types.h>
45 /* ncurses(3): Must be defined to have extended wide-character functions. */
46 #define _XOPEN_SOURCE_EXTENDED
48 #ifdef HAVE_NCURSESW_NCURSES_H
49 #include <ncursesw/ncurses.h>
51 #ifdef HAVE_NCURSES_NCURSES_H
52 #include <ncurses/ncurses.h>
59 #define __NORETURN __attribute__((__noreturn__))
64 static void __NORETURN die(const char *err, ...);
65 static void warn(const char *msg, ...);
66 static void report(const char *msg, ...);
67 static int read_properties(FILE *pipe, const char *separators, int (*read)(char *, size_t, char *, size_t));
68 static void set_nonblocking_input(bool loading);
69 static size_t utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve);
70 static bool prompt_yesno(const char *prompt);
71 static int load_refs(void);
73 #define ABS(x) ((x) >= 0 ? (x) : -(x))
74 #define MIN(x, y) ((x) < (y) ? (x) : (y))
76 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
77 #define STRING_SIZE(x) (sizeof(x) - 1)
79 #define SIZEOF_STR 1024 /* Default string size. */
80 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
81 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL. */
82 #define SIZEOF_ARG 32 /* Default argument array size. */
86 #define REVGRAPH_INIT 'I'
87 #define REVGRAPH_MERGE 'M'
88 #define REVGRAPH_BRANCH '+'
89 #define REVGRAPH_COMMIT '*'
90 #define REVGRAPH_BOUND '^'
92 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
94 /* This color name can be used to refer to the default term colors. */
95 #define COLOR_DEFAULT (-1)
97 #define ICONV_NONE ((iconv_t) -1)
99 #define ICONV_CONST /* nothing */
102 /* The format and size of the date column in the main view. */
103 #define DATE_FORMAT "%Y-%m-%d %H:%M"
104 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
106 #define AUTHOR_COLS 20
109 /* The default interval between line numbers. */
110 #define NUMBER_INTERVAL 5
114 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
116 #define NULL_ID "0000000000000000000000000000000000000000"
119 #define GIT_CONFIG "config"
122 #define TIG_LS_REMOTE \
123 "git ls-remote . 2>/dev/null"
125 #define TIG_DIFF_CMD \
126 "git show --pretty=fuller --no-color --root --patch-with-stat --find-copies-harder -C %s 2>/dev/null"
128 #define TIG_LOG_CMD \
129 "git log --no-color --cc --stat -n100 %s 2>/dev/null"
131 #define TIG_MAIN_BASE \
132 "git log --no-color --pretty=raw --parents --topo-order"
134 #define TIG_MAIN_CMD \
135 TIG_MAIN_BASE " %s 2>/dev/null"
137 #define TIG_TREE_CMD \
140 #define TIG_BLOB_CMD \
141 "git cat-file blob %s"
143 /* XXX: Needs to be defined to the empty string. */
144 #define TIG_HELP_CMD ""
145 #define TIG_PAGER_CMD ""
146 #define TIG_STATUS_CMD ""
147 #define TIG_STAGE_CMD ""
148 #define TIG_BLAME_CMD ""
150 /* Some ascii-shorthands fitted into the ncurses namespace. */
152 #define KEY_RETURN '\r'
157 char *name; /* Ref name; tag or head names are shortened. */
158 char id[SIZEOF_REV]; /* Commit SHA1 ID */
159 unsigned int head:1; /* Is it the current HEAD? */
160 unsigned int tag:1; /* Is it a tag? */
161 unsigned int ltag:1; /* If so, is the tag local? */
162 unsigned int remote:1; /* Is it a remote ref? */
163 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
164 unsigned int next:1; /* For ref lists: are there more refs? */
167 static struct ref **get_refs(const char *id);
176 set_from_int_map(struct int_map *map, size_t map_size,
177 int *value, const char *name, int namelen)
182 for (i = 0; i < map_size; i++)
183 if (namelen == map[i].namelen &&
184 !strncasecmp(name, map[i].name, namelen)) {
185 *value = map[i].value;
198 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
200 if (srclen > dstlen - 1)
203 strncpy(dst, src, srclen);
207 /* Shorthands for safely copying into a fixed buffer. */
209 #define string_copy(dst, src) \
210 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
212 #define string_ncopy(dst, src, srclen) \
213 string_ncopy_do(dst, sizeof(dst), src, srclen)
215 #define string_copy_rev(dst, src) \
216 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
218 #define string_add(dst, from, src) \
219 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
222 chomp_string(char *name)
226 while (isspace(*name))
229 namelen = strlen(name) - 1;
230 while (namelen > 0 && isspace(name[namelen]))
237 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
240 size_t pos = bufpos ? *bufpos : 0;
243 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
249 return pos >= bufsize ? FALSE : TRUE;
252 #define string_format(buf, fmt, args...) \
253 string_nformat(buf, sizeof(buf), NULL, fmt, args)
255 #define string_format_from(buf, from, fmt, args...) \
256 string_nformat(buf, sizeof(buf), from, fmt, args)
259 string_enum_compare(const char *str1, const char *str2, int len)
263 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
265 /* Diff-Header == DIFF_HEADER */
266 for (i = 0; i < len; i++) {
267 if (toupper(str1[i]) == toupper(str2[i]))
270 if (string_enum_sep(str1[i]) &&
271 string_enum_sep(str2[i]))
274 return str1[i] - str2[i];
280 #define prefixcmp(str1, str2) \
281 strncmp(str1, str2, STRING_SIZE(str2))
285 * NOTE: The following is a slightly modified copy of the git project's shell
286 * quoting routines found in the quote.c file.
288 * Help to copy the thing properly quoted for the shell safety. any single
289 * quote is replaced with '\'', any exclamation point is replaced with '\!',
290 * and the whole thing is enclosed in a
293 * original sq_quote result
294 * name ==> name ==> 'name'
295 * a b ==> a b ==> 'a b'
296 * a'b ==> a'\''b ==> 'a'\''b'
297 * a!b ==> a'\!'b ==> 'a'\!'b'
301 sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src)
305 #define BUFPUT(x) do { if (bufsize < SIZEOF_STR) buf[bufsize++] = (x); } while (0)
308 while ((c = *src++)) {
309 if (c == '\'' || c == '!') {
320 if (bufsize < SIZEOF_STR)
332 /* XXX: Keep the view request first and in sync with views[]. */ \
333 REQ_GROUP("View switching") \
334 REQ_(VIEW_MAIN, "Show main view"), \
335 REQ_(VIEW_DIFF, "Show diff view"), \
336 REQ_(VIEW_LOG, "Show log view"), \
337 REQ_(VIEW_TREE, "Show tree view"), \
338 REQ_(VIEW_BLOB, "Show blob view"), \
339 REQ_(VIEW_BLAME, "Show blame view"), \
340 REQ_(VIEW_HELP, "Show help page"), \
341 REQ_(VIEW_PAGER, "Show pager view"), \
342 REQ_(VIEW_STATUS, "Show status view"), \
343 REQ_(VIEW_STAGE, "Show stage view"), \
345 REQ_GROUP("View manipulation") \
346 REQ_(ENTER, "Enter current line and scroll"), \
347 REQ_(NEXT, "Move to next"), \
348 REQ_(PREVIOUS, "Move to previous"), \
349 REQ_(VIEW_NEXT, "Move focus to next view"), \
350 REQ_(REFRESH, "Reload and refresh"), \
351 REQ_(MAXIMIZE, "Maximize the current view"), \
352 REQ_(VIEW_CLOSE, "Close the current view"), \
353 REQ_(QUIT, "Close all views and quit"), \
355 REQ_GROUP("View specific requests") \
356 REQ_(STATUS_UPDATE, "Update file status"), \
357 REQ_(STATUS_REVERT, "Revert file changes"), \
358 REQ_(STATUS_MERGE, "Merge file using external tool"), \
359 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
360 REQ_(TREE_PARENT, "Switch to parent directory in tree view"), \
362 REQ_GROUP("Cursor navigation") \
363 REQ_(MOVE_UP, "Move cursor one line up"), \
364 REQ_(MOVE_DOWN, "Move cursor one line down"), \
365 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
366 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
367 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
368 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
370 REQ_GROUP("Scrolling") \
371 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
372 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
373 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
374 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
376 REQ_GROUP("Searching") \
377 REQ_(SEARCH, "Search the view"), \
378 REQ_(SEARCH_BACK, "Search backwards in the view"), \
379 REQ_(FIND_NEXT, "Find next search match"), \
380 REQ_(FIND_PREV, "Find previous search match"), \
382 REQ_GROUP("Option manipulation") \
383 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
384 REQ_(TOGGLE_DATE, "Toggle date display"), \
385 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
386 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
387 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
390 REQ_(PROMPT, "Bring up the prompt"), \
391 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
392 REQ_(SCREEN_RESIZE, "Resize the screen"), \
393 REQ_(SHOW_VERSION, "Show version information"), \
394 REQ_(STOP_LOADING, "Stop all loading views"), \
395 REQ_(EDIT, "Open in editor"), \
396 REQ_(NONE, "Do nothing")
399 /* User action requests. */
401 #define REQ_GROUP(help)
402 #define REQ_(req, help) REQ_##req
404 /* Offset all requests to avoid conflicts with ncurses getch values. */
405 REQ_OFFSET = KEY_MAX + 1,
412 struct request_info {
413 enum request request;
419 static struct request_info req_info[] = {
420 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
421 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
428 get_request(const char *name)
430 int namelen = strlen(name);
433 for (i = 0; i < ARRAY_SIZE(req_info); i++)
434 if (req_info[i].namelen == namelen &&
435 !string_enum_compare(req_info[i].name, name, namelen))
436 return req_info[i].request;
446 static const char usage[] =
447 "tig " TIG_VERSION " (" __DATE__ ")\n"
449 "Usage: tig [options] [revs] [--] [paths]\n"
450 " or: tig show [options] [revs] [--] [paths]\n"
451 " or: tig blame [rev] path\n"
453 " or: tig < [git command output]\n"
456 " -v, --version Show version and exit\n"
457 " -h, --help Show help message and exit";
459 /* Option and state variables. */
460 static bool opt_date = TRUE;
461 static bool opt_author = TRUE;
462 static bool opt_line_number = FALSE;
463 static bool opt_line_graphics = TRUE;
464 static bool opt_rev_graph = FALSE;
465 static bool opt_show_refs = TRUE;
466 static int opt_num_interval = NUMBER_INTERVAL;
467 static int opt_tab_size = TAB_SIZE;
468 static int opt_author_cols = AUTHOR_COLS-1;
469 static char opt_cmd[SIZEOF_STR] = "";
470 static char opt_path[SIZEOF_STR] = "";
471 static char opt_file[SIZEOF_STR] = "";
472 static char opt_ref[SIZEOF_REF] = "";
473 static char opt_head[SIZEOF_REF] = "";
474 static char opt_remote[SIZEOF_REF] = "";
475 static bool opt_no_head = TRUE;
476 static FILE *opt_pipe = NULL;
477 static char opt_encoding[20] = "UTF-8";
478 static bool opt_utf8 = TRUE;
479 static char opt_codeset[20] = "UTF-8";
480 static iconv_t opt_iconv = ICONV_NONE;
481 static char opt_search[SIZEOF_STR] = "";
482 static char opt_cdup[SIZEOF_STR] = "";
483 static char opt_git_dir[SIZEOF_STR] = "";
484 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
485 static char opt_editor[SIZEOF_STR] = "";
488 parse_options(int argc, const char *argv[])
490 enum request request = REQ_VIEW_MAIN;
492 const char *subcommand;
493 bool seen_dashdash = FALSE;
496 if (!isatty(STDIN_FILENO)) {
498 return REQ_VIEW_PAGER;
502 return REQ_VIEW_MAIN;
504 subcommand = argv[1];
505 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
506 if (!strcmp(subcommand, "-S"))
507 warn("`-S' has been deprecated; use `tig status' instead");
509 warn("ignoring arguments after `%s'", subcommand);
510 return REQ_VIEW_STATUS;
512 } else if (!strcmp(subcommand, "blame")) {
513 if (argc <= 2 || argc > 4)
514 die("invalid number of options to blame\n\n%s", usage);
518 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
522 string_ncopy(opt_file, argv[i], strlen(argv[i]));
523 return REQ_VIEW_BLAME;
525 } else if (!strcmp(subcommand, "show")) {
526 request = REQ_VIEW_DIFF;
528 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
529 request = subcommand[0] == 'l' ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
530 warn("`tig %s' has been deprecated", subcommand);
537 /* XXX: This is vulnerable to the user overriding
538 * options required for the main view parser. */
539 string_copy(opt_cmd, TIG_MAIN_BASE);
541 string_format(opt_cmd, "git %s", subcommand);
543 buf_size = strlen(opt_cmd);
545 for (i = 1 + !!subcommand; i < argc; i++) {
546 const char *opt = argv[i];
548 if (seen_dashdash || !strcmp(opt, "--")) {
549 seen_dashdash = TRUE;
551 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
552 printf("tig version %s\n", TIG_VERSION);
555 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
556 printf("%s\n", usage);
560 opt_cmd[buf_size++] = ' ';
561 buf_size = sq_quote(opt_cmd, buf_size, opt);
562 if (buf_size >= sizeof(opt_cmd))
563 die("command too long");
566 opt_cmd[buf_size] = 0;
573 * Line-oriented content detection.
577 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
578 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
579 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
580 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
581 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
582 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
583 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
584 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
585 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
586 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
587 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
588 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
589 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
590 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
591 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
592 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
593 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
594 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
595 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
596 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
597 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
598 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
599 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
600 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
601 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
602 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
603 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
604 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
605 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
606 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
607 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
608 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
609 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
610 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
611 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
612 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
613 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
614 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
615 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
616 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
617 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
618 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
619 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
620 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
621 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
622 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
623 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
624 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
625 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
626 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
627 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
628 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
629 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
630 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
633 #define LINE(type, line, fg, bg, attr) \
641 const char *name; /* Option name. */
642 int namelen; /* Size of option name. */
643 const char *line; /* The start of line to match. */
644 int linelen; /* Size of string to match. */
645 int fg, bg, attr; /* Color and text attributes for the lines. */
648 static struct line_info line_info[] = {
649 #define LINE(type, line, fg, bg, attr) \
650 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
655 static enum line_type
656 get_line_type(const char *line)
658 int linelen = strlen(line);
661 for (type = 0; type < ARRAY_SIZE(line_info); type++)
662 /* Case insensitive search matches Signed-off-by lines better. */
663 if (linelen >= line_info[type].linelen &&
664 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
671 get_line_attr(enum line_type type)
673 assert(type < ARRAY_SIZE(line_info));
674 return COLOR_PAIR(type) | line_info[type].attr;
677 static struct line_info *
678 get_line_info(const char *name)
680 size_t namelen = strlen(name);
683 for (type = 0; type < ARRAY_SIZE(line_info); type++)
684 if (namelen == line_info[type].namelen &&
685 !string_enum_compare(line_info[type].name, name, namelen))
686 return &line_info[type];
694 int default_bg = line_info[LINE_DEFAULT].bg;
695 int default_fg = line_info[LINE_DEFAULT].fg;
700 if (assume_default_colors(default_fg, default_bg) == ERR) {
701 default_bg = COLOR_BLACK;
702 default_fg = COLOR_WHITE;
705 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
706 struct line_info *info = &line_info[type];
707 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
708 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
710 init_pair(type, fg, bg);
718 unsigned int selected:1;
719 unsigned int dirty:1;
721 void *data; /* User data */
731 enum request request;
732 struct keybinding *next;
735 static struct keybinding default_keybindings[] = {
737 { 'm', REQ_VIEW_MAIN },
738 { 'd', REQ_VIEW_DIFF },
739 { 'l', REQ_VIEW_LOG },
740 { 't', REQ_VIEW_TREE },
741 { 'f', REQ_VIEW_BLOB },
742 { 'B', REQ_VIEW_BLAME },
743 { 'p', REQ_VIEW_PAGER },
744 { 'h', REQ_VIEW_HELP },
745 { 'S', REQ_VIEW_STATUS },
746 { 'c', REQ_VIEW_STAGE },
748 /* View manipulation */
749 { 'q', REQ_VIEW_CLOSE },
750 { KEY_TAB, REQ_VIEW_NEXT },
751 { KEY_RETURN, REQ_ENTER },
752 { KEY_UP, REQ_PREVIOUS },
753 { KEY_DOWN, REQ_NEXT },
754 { 'R', REQ_REFRESH },
755 { KEY_F(5), REQ_REFRESH },
756 { 'O', REQ_MAXIMIZE },
758 /* Cursor navigation */
759 { 'k', REQ_MOVE_UP },
760 { 'j', REQ_MOVE_DOWN },
761 { KEY_HOME, REQ_MOVE_FIRST_LINE },
762 { KEY_END, REQ_MOVE_LAST_LINE },
763 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
764 { ' ', REQ_MOVE_PAGE_DOWN },
765 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
766 { 'b', REQ_MOVE_PAGE_UP },
767 { '-', REQ_MOVE_PAGE_UP },
770 { KEY_IC, REQ_SCROLL_LINE_UP },
771 { KEY_DC, REQ_SCROLL_LINE_DOWN },
772 { 'w', REQ_SCROLL_PAGE_UP },
773 { 's', REQ_SCROLL_PAGE_DOWN },
777 { '?', REQ_SEARCH_BACK },
778 { 'n', REQ_FIND_NEXT },
779 { 'N', REQ_FIND_PREV },
783 { 'z', REQ_STOP_LOADING },
784 { 'v', REQ_SHOW_VERSION },
785 { 'r', REQ_SCREEN_REDRAW },
786 { '.', REQ_TOGGLE_LINENO },
787 { 'D', REQ_TOGGLE_DATE },
788 { 'A', REQ_TOGGLE_AUTHOR },
789 { 'g', REQ_TOGGLE_REV_GRAPH },
790 { 'F', REQ_TOGGLE_REFS },
792 { 'u', REQ_STATUS_UPDATE },
793 { '!', REQ_STATUS_REVERT },
794 { 'M', REQ_STATUS_MERGE },
795 { '@', REQ_STAGE_NEXT },
796 { ',', REQ_TREE_PARENT },
799 /* Using the ncurses SIGWINCH handler. */
800 { KEY_RESIZE, REQ_SCREEN_RESIZE },
803 #define KEYMAP_INFO \
817 #define KEYMAP_(name) KEYMAP_##name
822 static struct int_map keymap_table[] = {
823 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
828 #define set_keymap(map, name) \
829 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
831 static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)];
834 add_keybinding(enum keymap keymap, enum request request, int key)
836 struct keybinding *keybinding;
838 keybinding = calloc(1, sizeof(*keybinding));
840 die("Failed to allocate keybinding");
842 keybinding->alias = key;
843 keybinding->request = request;
844 keybinding->next = keybindings[keymap];
845 keybindings[keymap] = keybinding;
848 /* Looks for a key binding first in the given map, then in the generic map, and
849 * lastly in the default keybindings. */
851 get_keybinding(enum keymap keymap, int key)
853 struct keybinding *kbd;
856 for (kbd = keybindings[keymap]; kbd; kbd = kbd->next)
857 if (kbd->alias == key)
860 for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next)
861 if (kbd->alias == key)
864 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
865 if (default_keybindings[i].alias == key)
866 return default_keybindings[i].request;
868 return (enum request) key;
877 static struct key key_table[] = {
878 { "Enter", KEY_RETURN },
880 { "Backspace", KEY_BACKSPACE },
882 { "Escape", KEY_ESC },
883 { "Left", KEY_LEFT },
884 { "Right", KEY_RIGHT },
886 { "Down", KEY_DOWN },
887 { "Insert", KEY_IC },
888 { "Delete", KEY_DC },
890 { "Home", KEY_HOME },
892 { "PageUp", KEY_PPAGE },
893 { "PageDown", KEY_NPAGE },
903 { "F10", KEY_F(10) },
904 { "F11", KEY_F(11) },
905 { "F12", KEY_F(12) },
909 get_key_value(const char *name)
913 for (i = 0; i < ARRAY_SIZE(key_table); i++)
914 if (!strcasecmp(key_table[i].name, name))
915 return key_table[i].value;
917 if (strlen(name) == 1 && isprint(*name))
924 get_key_name(int key_value)
926 static char key_char[] = "'X'";
927 const char *seq = NULL;
930 for (key = 0; key < ARRAY_SIZE(key_table); key++)
931 if (key_table[key].value == key_value)
932 seq = key_table[key].name;
936 isprint(key_value)) {
937 key_char[1] = (char) key_value;
941 return seq ? seq : "(no key)";
945 get_key(enum request request)
947 static char buf[BUFSIZ];
954 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
955 struct keybinding *keybinding = &default_keybindings[i];
957 if (keybinding->request != request)
960 if (!string_format_from(buf, &pos, "%s%s", sep,
961 get_key_name(keybinding->alias)))
962 return "Too many keybindings!";
972 char cmd[SIZEOF_STR];
975 static struct run_request *run_request;
976 static size_t run_requests;
979 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
981 struct run_request *req;
982 char cmd[SIZEOF_STR];
985 for (bufpos = 0; argc > 0; argc--, argv++)
986 if (!string_format_from(cmd, &bufpos, "%s ", *argv))
989 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
994 req = &run_request[run_requests++];
995 string_copy(req->cmd, cmd);
996 req->keymap = keymap;
999 return REQ_NONE + run_requests;
1002 static struct run_request *
1003 get_run_request(enum request request)
1005 if (request <= REQ_NONE)
1007 return &run_request[request - REQ_NONE - 1];
1011 add_builtin_run_requests(void)
1016 const char *argv[1];
1018 { KEYMAP_MAIN, 'C', { "git cherry-pick %(commit)" } },
1019 { KEYMAP_GENERIC, 'G', { "git gc" } },
1023 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1026 req = add_run_request(reqs[i].keymap, reqs[i].key, 1, reqs[i].argv);
1027 if (req != REQ_NONE)
1028 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1033 * User config file handling.
1036 static struct int_map color_map[] = {
1037 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1049 #define set_color(color, name) \
1050 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1052 static struct int_map attr_map[] = {
1053 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1060 ATTR_MAP(UNDERLINE),
1063 #define set_attribute(attr, name) \
1064 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1066 static int config_lineno;
1067 static bool config_errors;
1068 static const char *config_msg;
1070 /* Wants: object fgcolor bgcolor [attr] */
1072 option_color_command(int argc, const char *argv[])
1074 struct line_info *info;
1076 if (argc != 3 && argc != 4) {
1077 config_msg = "Wrong number of arguments given to color command";
1081 info = get_line_info(argv[0]);
1083 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1084 info = get_line_info("delimiter");
1086 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1087 info = get_line_info("date");
1090 config_msg = "Unknown color name";
1095 if (set_color(&info->fg, argv[1]) == ERR ||
1096 set_color(&info->bg, argv[2]) == ERR) {
1097 config_msg = "Unknown color";
1101 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1102 config_msg = "Unknown attribute";
1109 static bool parse_bool(const char *s)
1111 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1112 !strcmp(s, "yes")) ? TRUE : FALSE;
1116 parse_int(const char *s, int default_value, int min, int max)
1118 int value = atoi(s);
1120 return (value < min || value > max) ? default_value : value;
1123 /* Wants: name = value */
1125 option_set_command(int argc, const char *argv[])
1128 config_msg = "Wrong number of arguments given to set command";
1132 if (strcmp(argv[1], "=")) {
1133 config_msg = "No value assigned";
1137 if (!strcmp(argv[0], "show-author")) {
1138 opt_author = parse_bool(argv[2]);
1142 if (!strcmp(argv[0], "show-date")) {
1143 opt_date = parse_bool(argv[2]);
1147 if (!strcmp(argv[0], "show-rev-graph")) {
1148 opt_rev_graph = parse_bool(argv[2]);
1152 if (!strcmp(argv[0], "show-refs")) {
1153 opt_show_refs = parse_bool(argv[2]);
1157 if (!strcmp(argv[0], "show-line-numbers")) {
1158 opt_line_number = parse_bool(argv[2]);
1162 if (!strcmp(argv[0], "line-graphics")) {
1163 opt_line_graphics = parse_bool(argv[2]);
1167 if (!strcmp(argv[0], "line-number-interval")) {
1168 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1172 if (!strcmp(argv[0], "author-width")) {
1173 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1177 if (!strcmp(argv[0], "tab-size")) {
1178 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1182 if (!strcmp(argv[0], "commit-encoding")) {
1183 const char *arg = argv[2];
1184 int arglen = strlen(arg);
1189 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1190 config_msg = "Unmatched quotation";
1193 arg += 1; arglen -= 2;
1195 string_ncopy(opt_encoding, arg, strlen(arg));
1200 config_msg = "Unknown variable name";
1204 /* Wants: mode request key */
1206 option_bind_command(int argc, const char *argv[])
1208 enum request request;
1213 config_msg = "Wrong number of arguments given to bind command";
1217 if (set_keymap(&keymap, argv[0]) == ERR) {
1218 config_msg = "Unknown key map";
1222 key = get_key_value(argv[1]);
1224 config_msg = "Unknown key";
1228 request = get_request(argv[2]);
1229 if (request == REQ_NONE) {
1230 const char *obsolete[] = { "cherry-pick" };
1231 size_t namelen = strlen(argv[2]);
1234 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1235 if (namelen == strlen(obsolete[i]) &&
1236 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1237 config_msg = "Obsolete request name";
1242 if (request == REQ_NONE && *argv[2]++ == '!')
1243 request = add_run_request(keymap, key, argc - 2, argv + 2);
1244 if (request == REQ_NONE) {
1245 config_msg = "Unknown request name";
1249 add_keybinding(keymap, request, key);
1255 set_option(const char *opt, char *value)
1257 const char *argv[SIZEOF_ARG];
1262 while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) {
1263 argv[argc++] = value;
1266 /* Nothing more to tokenize or last available token. */
1267 if (!*value || argc >= ARRAY_SIZE(argv))
1271 while (isspace(*value))
1275 if (!strcmp(opt, "color"))
1276 return option_color_command(argc, argv);
1278 if (!strcmp(opt, "set"))
1279 return option_set_command(argc, argv);
1281 if (!strcmp(opt, "bind"))
1282 return option_bind_command(argc, argv);
1284 config_msg = "Unknown option command";
1289 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1294 config_msg = "Internal error";
1296 /* Check for comment markers, since read_properties() will
1297 * only ensure opt and value are split at first " \t". */
1298 optlen = strcspn(opt, "#");
1302 if (opt[optlen] != 0) {
1303 config_msg = "No option value";
1307 /* Look for comment endings in the value. */
1308 size_t len = strcspn(value, "#");
1310 if (len < valuelen) {
1312 value[valuelen] = 0;
1315 status = set_option(opt, value);
1318 if (status == ERR) {
1319 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1320 config_lineno, (int) optlen, opt, config_msg);
1321 config_errors = TRUE;
1324 /* Always keep going if errors are encountered. */
1329 load_option_file(const char *path)
1333 /* It's ok that the file doesn't exist. */
1334 file = fopen(path, "r");
1339 config_errors = FALSE;
1341 if (read_properties(file, " \t", read_option) == ERR ||
1342 config_errors == TRUE)
1343 fprintf(stderr, "Errors while loading %s.\n", path);
1349 const char *home = getenv("HOME");
1350 const char *tigrc_user = getenv("TIGRC_USER");
1351 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1352 char buf[SIZEOF_STR];
1354 add_builtin_run_requests();
1356 if (!tigrc_system) {
1357 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1361 load_option_file(tigrc_system);
1364 if (!home || !string_format(buf, "%s/.tigrc", home))
1368 load_option_file(tigrc_user);
1381 /* The display array of active views and the index of the current view. */
1382 static struct view *display[2];
1383 static unsigned int current_view;
1385 /* Reading from the prompt? */
1386 static bool input_mode = FALSE;
1388 #define foreach_displayed_view(view, i) \
1389 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1391 #define displayed_views() (display[1] != NULL ? 2 : 1)
1393 /* Current head and commit ID */
1394 static char ref_blob[SIZEOF_REF] = "";
1395 static char ref_commit[SIZEOF_REF] = "HEAD";
1396 static char ref_head[SIZEOF_REF] = "HEAD";
1399 const char *name; /* View name */
1400 const char *cmd_fmt; /* Default command line format */
1401 const char *cmd_env; /* Command line set via environment */
1402 const char *id; /* Points to either of ref_{head,commit,blob} */
1404 struct view_ops *ops; /* View operations */
1406 enum keymap keymap; /* What keymap does this view have */
1407 bool git_dir; /* Whether the view requires a git directory. */
1409 char cmd[SIZEOF_STR]; /* Command buffer */
1410 char ref[SIZEOF_REF]; /* Hovered commit reference */
1411 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1413 int height, width; /* The width and height of the main window */
1414 WINDOW *win; /* The main window */
1415 WINDOW *title; /* The title window living below the main window */
1418 unsigned long offset; /* Offset of the window top */
1419 unsigned long lineno; /* Current line number */
1422 char grep[SIZEOF_STR]; /* Search string */
1423 regex_t *regex; /* Pre-compiled regex */
1425 /* If non-NULL, points to the view that opened this view. If this view
1426 * is closed tig will switch back to the parent view. */
1427 struct view *parent;
1430 size_t lines; /* Total number of lines */
1431 struct line *line; /* Line index */
1432 size_t line_alloc; /* Total number of allocated lines */
1433 size_t line_size; /* Total number of used lines */
1434 unsigned int digits; /* Number of digits in the lines member. */
1437 struct line *curline; /* Line currently being drawn. */
1438 enum line_type curtype; /* Attribute currently used for drawing. */
1439 unsigned long col; /* Column when drawing. */
1447 /* What type of content being displayed. Used in the title bar. */
1449 /* Open and reads in all view content. */
1450 bool (*open)(struct view *view);
1451 /* Read one line; updates view->line. */
1452 bool (*read)(struct view *view, char *data);
1453 /* Draw one line; @lineno must be < view->height. */
1454 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1455 /* Depending on view handle a special requests. */
1456 enum request (*request)(struct view *view, enum request request, struct line *line);
1457 /* Search for regex in a line. */
1458 bool (*grep)(struct view *view, struct line *line);
1460 void (*select)(struct view *view, struct line *line);
1463 static struct view_ops blame_ops;
1464 static struct view_ops blob_ops;
1465 static struct view_ops help_ops;
1466 static struct view_ops log_ops;
1467 static struct view_ops main_ops;
1468 static struct view_ops pager_ops;
1469 static struct view_ops stage_ops;
1470 static struct view_ops status_ops;
1471 static struct view_ops tree_ops;
1473 #define VIEW_STR(name, cmd, env, ref, ops, map, git) \
1474 { name, cmd, #env, ref, ops, map, git }
1476 #define VIEW_(id, name, ops, git, ref) \
1477 VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1480 static struct view views[] = {
1481 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1482 VIEW_(DIFF, "diff", &pager_ops, TRUE, ref_commit),
1483 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1484 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1485 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1486 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1487 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1488 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1489 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1490 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1493 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1494 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1496 #define foreach_view(view, i) \
1497 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1499 #define view_is_displayed(view) \
1500 (view == display[0] || view == display[1])
1507 static int line_graphics[] = {
1508 /* LINE_GRAPHIC_VLINE: */ '|'
1512 set_view_attr(struct view *view, enum line_type type)
1514 if (!view->curline->selected && view->curtype != type) {
1515 wattrset(view->win, get_line_attr(type));
1516 wchgat(view->win, -1, 0, type, NULL);
1517 view->curtype = type;
1522 draw_chars(struct view *view, enum line_type type, const char *string,
1523 int max_len, bool use_tilde)
1527 int trimmed = FALSE;
1533 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1535 col = len = strlen(string);
1536 if (len > max_len) {
1540 col = len = max_len;
1545 set_view_attr(view, type);
1546 waddnstr(view->win, string, len);
1547 if (trimmed && use_tilde) {
1548 set_view_attr(view, LINE_DELIMITER);
1549 waddch(view->win, '~');
1557 draw_space(struct view *view, enum line_type type, int max, int spaces)
1559 static char space[] = " ";
1562 spaces = MIN(max, spaces);
1564 while (spaces > 0) {
1565 int len = MIN(spaces, sizeof(space) - 1);
1567 col += draw_chars(view, type, space, spaces, FALSE);
1575 draw_lineno(struct view *view, unsigned int lineno)
1578 int digits3 = view->digits < 3 ? 3 : view->digits;
1579 int max_number = MIN(digits3, STRING_SIZE(number));
1580 int max = view->width - view->col;
1583 if (max < max_number)
1586 lineno += view->offset + 1;
1587 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1588 static char fmt[] = "%1ld";
1590 if (view->digits <= 9)
1591 fmt[1] = '0' + digits3;
1593 if (!string_format(number, fmt, lineno))
1595 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1597 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1601 set_view_attr(view, LINE_DEFAULT);
1602 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1607 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1610 return view->width - view->col <= 0;
1614 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1616 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1617 return view->width - view->col <= 0;
1621 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1623 int max = view->width - view->col;
1629 set_view_attr(view, type);
1630 /* Using waddch() instead of waddnstr() ensures that
1631 * they'll be rendered correctly for the cursor line. */
1632 for (i = 0; i < size; i++)
1633 waddch(view->win, graphic[i]);
1637 waddch(view->win, ' ');
1641 return view->width - view->col <= 0;
1645 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1647 int max = MIN(view->width - view->col, len);
1651 col = draw_chars(view, type, text, max - 1, trim);
1653 col = draw_space(view, type, max - 1, max - 1);
1655 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1656 return view->width - view->col <= 0;
1660 draw_date(struct view *view, struct tm *time)
1662 char buf[DATE_COLS];
1667 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1668 date = timelen ? buf : NULL;
1670 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1674 draw_view_line(struct view *view, unsigned int lineno)
1677 bool selected = (view->offset + lineno == view->lineno);
1680 assert(view_is_displayed(view));
1682 if (view->offset + lineno >= view->lines)
1685 line = &view->line[view->offset + lineno];
1687 wmove(view->win, lineno, 0);
1689 view->curline = line;
1690 view->curtype = LINE_NONE;
1691 line->selected = FALSE;
1694 set_view_attr(view, LINE_CURSOR);
1695 line->selected = TRUE;
1696 view->ops->select(view, line);
1697 } else if (line->selected) {
1698 wclrtoeol(view->win);
1701 scrollok(view->win, FALSE);
1702 draw_ok = view->ops->draw(view, line, lineno);
1703 scrollok(view->win, TRUE);
1709 redraw_view_dirty(struct view *view)
1714 for (lineno = 0; lineno < view->height; lineno++) {
1715 struct line *line = &view->line[view->offset + lineno];
1721 if (!draw_view_line(view, lineno))
1727 redrawwin(view->win);
1729 wnoutrefresh(view->win);
1731 wrefresh(view->win);
1735 redraw_view_from(struct view *view, int lineno)
1737 assert(0 <= lineno && lineno < view->height);
1739 for (; lineno < view->height; lineno++) {
1740 if (!draw_view_line(view, lineno))
1744 redrawwin(view->win);
1746 wnoutrefresh(view->win);
1748 wrefresh(view->win);
1752 redraw_view(struct view *view)
1755 redraw_view_from(view, 0);
1760 update_view_title(struct view *view)
1762 char buf[SIZEOF_STR];
1763 char state[SIZEOF_STR];
1764 size_t bufpos = 0, statelen = 0;
1766 assert(view_is_displayed(view));
1768 if (view != VIEW(REQ_VIEW_STATUS) && (view->lines || view->pipe)) {
1769 unsigned int view_lines = view->offset + view->height;
1770 unsigned int lines = view->lines
1771 ? MIN(view_lines, view->lines) * 100 / view->lines
1774 string_format_from(state, &statelen, "- %s %d of %d (%d%%)",
1781 time_t secs = time(NULL) - view->start_time;
1783 /* Three git seconds are a long time ... */
1785 string_format_from(state, &statelen, " %lds", secs);
1789 string_format_from(buf, &bufpos, "[%s]", view->name);
1790 if (*view->ref && bufpos < view->width) {
1791 size_t refsize = strlen(view->ref);
1792 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
1794 if (minsize < view->width)
1795 refsize = view->width - minsize + 7;
1796 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
1799 if (statelen && bufpos < view->width) {
1800 string_format_from(buf, &bufpos, " %s", state);
1803 if (view == display[current_view])
1804 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
1806 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
1808 mvwaddnstr(view->title, 0, 0, buf, bufpos);
1809 wclrtoeol(view->title);
1810 wmove(view->title, 0, view->width - 1);
1813 wnoutrefresh(view->title);
1815 wrefresh(view->title);
1819 resize_display(void)
1822 struct view *base = display[0];
1823 struct view *view = display[1] ? display[1] : display[0];
1825 /* Setup window dimensions */
1827 getmaxyx(stdscr, base->height, base->width);
1829 /* Make room for the status window. */
1833 /* Horizontal split. */
1834 view->width = base->width;
1835 view->height = SCALE_SPLIT_VIEW(base->height);
1836 base->height -= view->height;
1838 /* Make room for the title bar. */
1842 /* Make room for the title bar. */
1847 foreach_displayed_view (view, i) {
1849 view->win = newwin(view->height, 0, offset, 0);
1851 die("Failed to create %s view", view->name);
1853 scrollok(view->win, TRUE);
1855 view->title = newwin(1, 0, offset + view->height, 0);
1857 die("Failed to create title window");
1860 wresize(view->win, view->height, view->width);
1861 mvwin(view->win, offset, 0);
1862 mvwin(view->title, offset + view->height, 0);
1865 offset += view->height + 1;
1870 redraw_display(void)
1875 foreach_displayed_view (view, i) {
1877 update_view_title(view);
1882 update_display_cursor(struct view *view)
1884 /* Move the cursor to the right-most column of the cursor line.
1886 * XXX: This could turn out to be a bit expensive, but it ensures that
1887 * the cursor does not jump around. */
1889 wmove(view->win, view->lineno - view->offset, view->width - 1);
1890 wrefresh(view->win);
1898 /* Scrolling backend */
1900 do_scroll_view(struct view *view, int lines)
1902 bool redraw_current_line = FALSE;
1904 /* The rendering expects the new offset. */
1905 view->offset += lines;
1907 assert(0 <= view->offset && view->offset < view->lines);
1910 /* Move current line into the view. */
1911 if (view->lineno < view->offset) {
1912 view->lineno = view->offset;
1913 redraw_current_line = TRUE;
1914 } else if (view->lineno >= view->offset + view->height) {
1915 view->lineno = view->offset + view->height - 1;
1916 redraw_current_line = TRUE;
1919 assert(view->offset <= view->lineno && view->lineno < view->lines);
1921 /* Redraw the whole screen if scrolling is pointless. */
1922 if (view->height < ABS(lines)) {
1926 int line = lines > 0 ? view->height - lines : 0;
1927 int end = line + ABS(lines);
1929 wscrl(view->win, lines);
1931 for (; line < end; line++) {
1932 if (!draw_view_line(view, line))
1936 if (redraw_current_line)
1937 draw_view_line(view, view->lineno - view->offset);
1940 redrawwin(view->win);
1941 wrefresh(view->win);
1945 /* Scroll frontend */
1947 scroll_view(struct view *view, enum request request)
1951 assert(view_is_displayed(view));
1954 case REQ_SCROLL_PAGE_DOWN:
1955 lines = view->height;
1956 case REQ_SCROLL_LINE_DOWN:
1957 if (view->offset + lines > view->lines)
1958 lines = view->lines - view->offset;
1960 if (lines == 0 || view->offset + view->height >= view->lines) {
1961 report("Cannot scroll beyond the last line");
1966 case REQ_SCROLL_PAGE_UP:
1967 lines = view->height;
1968 case REQ_SCROLL_LINE_UP:
1969 if (lines > view->offset)
1970 lines = view->offset;
1973 report("Cannot scroll beyond the first line");
1981 die("request %d not handled in switch", request);
1984 do_scroll_view(view, lines);
1989 move_view(struct view *view, enum request request)
1991 int scroll_steps = 0;
1995 case REQ_MOVE_FIRST_LINE:
1996 steps = -view->lineno;
1999 case REQ_MOVE_LAST_LINE:
2000 steps = view->lines - view->lineno - 1;
2003 case REQ_MOVE_PAGE_UP:
2004 steps = view->height > view->lineno
2005 ? -view->lineno : -view->height;
2008 case REQ_MOVE_PAGE_DOWN:
2009 steps = view->lineno + view->height >= view->lines
2010 ? view->lines - view->lineno - 1 : view->height;
2022 die("request %d not handled in switch", request);
2025 if (steps <= 0 && view->lineno == 0) {
2026 report("Cannot move beyond the first line");
2029 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2030 report("Cannot move beyond the last line");
2034 /* Move the current line */
2035 view->lineno += steps;
2036 assert(0 <= view->lineno && view->lineno < view->lines);
2038 /* Check whether the view needs to be scrolled */
2039 if (view->lineno < view->offset ||
2040 view->lineno >= view->offset + view->height) {
2041 scroll_steps = steps;
2042 if (steps < 0 && -steps > view->offset) {
2043 scroll_steps = -view->offset;
2045 } else if (steps > 0) {
2046 if (view->lineno == view->lines - 1 &&
2047 view->lines > view->height) {
2048 scroll_steps = view->lines - view->offset - 1;
2049 if (scroll_steps >= view->height)
2050 scroll_steps -= view->height - 1;
2055 if (!view_is_displayed(view)) {
2056 view->offset += scroll_steps;
2057 assert(0 <= view->offset && view->offset < view->lines);
2058 view->ops->select(view, &view->line[view->lineno]);
2062 /* Repaint the old "current" line if we be scrolling */
2063 if (ABS(steps) < view->height)
2064 draw_view_line(view, view->lineno - steps - view->offset);
2067 do_scroll_view(view, scroll_steps);
2071 /* Draw the current line */
2072 draw_view_line(view, view->lineno - view->offset);
2074 redrawwin(view->win);
2075 wrefresh(view->win);
2084 static void search_view(struct view *view, enum request request);
2087 find_next_line(struct view *view, unsigned long lineno, struct line *line)
2089 assert(view_is_displayed(view));
2091 if (!view->ops->grep(view, line))
2094 if (lineno - view->offset >= view->height) {
2095 view->offset = lineno;
2096 view->lineno = lineno;
2100 unsigned long old_lineno = view->lineno - view->offset;
2102 view->lineno = lineno;
2103 draw_view_line(view, old_lineno);
2105 draw_view_line(view, view->lineno - view->offset);
2106 redrawwin(view->win);
2107 wrefresh(view->win);
2110 report("Line %ld matches '%s'", lineno + 1, view->grep);
2115 find_next(struct view *view, enum request request)
2117 unsigned long lineno = view->lineno;
2122 report("No previous search");
2124 search_view(view, request);
2134 case REQ_SEARCH_BACK:
2143 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2144 lineno += direction;
2146 /* Note, lineno is unsigned long so will wrap around in which case it
2147 * will become bigger than view->lines. */
2148 for (; lineno < view->lines; lineno += direction) {
2149 struct line *line = &view->line[lineno];
2151 if (find_next_line(view, lineno, line))
2155 report("No match found for '%s'", view->grep);
2159 search_view(struct view *view, enum request request)
2164 regfree(view->regex);
2167 view->regex = calloc(1, sizeof(*view->regex));
2172 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2173 if (regex_err != 0) {
2174 char buf[SIZEOF_STR] = "unknown error";
2176 regerror(regex_err, view->regex, buf, sizeof(buf));
2177 report("Search failed: %s", buf);
2181 string_copy(view->grep, opt_search);
2183 find_next(view, request);
2187 * Incremental updating
2191 reset_view(struct view *view)
2195 for (i = 0; i < view->lines; i++)
2196 free(view->line[i].data);
2203 view->line_size = 0;
2204 view->line_alloc = 0;
2209 end_update(struct view *view, bool force)
2213 while (!view->ops->read(view, NULL))
2216 set_nonblocking_input(FALSE);
2217 if (view->pipe == stdin)
2225 begin_update(struct view *view, bool refresh)
2228 string_copy(view->cmd, opt_cmd);
2230 /* When running random commands, initially show the
2231 * command in the title. However, it maybe later be
2232 * overwritten if a commit line is selected. */
2233 if (view == VIEW(REQ_VIEW_PAGER))
2234 string_copy(view->ref, view->cmd);
2238 } else if (view == VIEW(REQ_VIEW_TREE)) {
2239 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2240 char path[SIZEOF_STR];
2242 if (strcmp(view->vid, view->id))
2243 opt_path[0] = path[0] = 0;
2244 else if (sq_quote(path, 0, opt_path) >= sizeof(path))
2247 if (!string_format(view->cmd, format, view->id, path))
2250 } else if (!refresh) {
2251 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2252 const char *id = view->id;
2254 if (!string_format(view->cmd, format, id, id, id, id, id))
2257 /* Put the current ref_* value to the view title ref
2258 * member. This is needed by the blob view. Most other
2259 * views sets it automatically after loading because the
2260 * first line is a commit line. */
2261 string_copy_rev(view->ref, view->id);
2264 /* Special case for the pager view. */
2266 view->pipe = opt_pipe;
2269 view->pipe = popen(view->cmd, "r");
2275 set_nonblocking_input(TRUE);
2277 string_copy_rev(view->vid, view->id);
2279 view->start_time = time(NULL);
2284 #define ITEM_CHUNK_SIZE 256
2286 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2288 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2289 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2291 if (mem == NULL || num_chunks != num_chunks_new) {
2292 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2293 mem = realloc(mem, *size * item_size);
2299 static struct line *
2300 realloc_lines(struct view *view, size_t line_size)
2302 size_t alloc = view->line_alloc;
2303 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2304 sizeof(*view->line));
2310 view->line_alloc = alloc;
2311 view->line_size = line_size;
2316 update_view(struct view *view)
2318 char in_buffer[BUFSIZ];
2319 char out_buffer[BUFSIZ * 2];
2321 /* The number of lines to read. If too low it will cause too much
2322 * redrawing (and possible flickering), if too high responsiveness
2324 unsigned long lines = view->height;
2325 int redraw_from = -1;
2330 /* Only redraw if lines are visible. */
2331 if (view->offset + view->height >= view->lines)
2332 redraw_from = view->lines - view->offset;
2334 /* FIXME: This is probably not perfect for backgrounded views. */
2335 if (!realloc_lines(view, view->lines + lines))
2338 while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) {
2339 size_t linelen = strlen(line);
2342 line[linelen - 1] = 0;
2344 if (opt_iconv != ICONV_NONE) {
2345 ICONV_CONST char *inbuf = line;
2346 size_t inlen = linelen;
2348 char *outbuf = out_buffer;
2349 size_t outlen = sizeof(out_buffer);
2353 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2354 if (ret != (size_t) -1) {
2356 linelen = strlen(out_buffer);
2360 if (!view->ops->read(view, line))
2370 lines = view->lines;
2371 for (digits = 0; lines; digits++)
2374 /* Keep the displayed view in sync with line number scaling. */
2375 if (digits != view->digits) {
2376 view->digits = digits;
2381 if (ferror(view->pipe) && errno != 0) {
2382 report("Failed to read: %s", strerror(errno));
2383 end_update(view, TRUE);
2385 } else if (feof(view->pipe)) {
2387 end_update(view, FALSE);
2390 if (view == VIEW(REQ_VIEW_TREE)) {
2391 /* Clear the view and redraw everything since the tree sorting
2392 * might have rearranged things. */
2395 } else if (redraw_from >= 0) {
2396 /* If this is an incremental update, redraw the previous line
2397 * since for commits some members could have changed when
2398 * loading the main view. */
2399 if (redraw_from > 0)
2402 /* Since revision graph visualization requires knowledge
2403 * about the parent commit, it causes a further one-off
2404 * needed to be redrawn for incremental updates. */
2405 if (redraw_from > 0 && opt_rev_graph)
2408 /* Incrementally draw avoids flickering. */
2409 redraw_view_from(view, redraw_from);
2412 if (view == VIEW(REQ_VIEW_BLAME))
2413 redraw_view_dirty(view);
2415 /* Update the title _after_ the redraw so that if the redraw picks up a
2416 * commit reference in view->ref it'll be available here. */
2417 update_view_title(view);
2421 report("Allocation failure");
2422 end_update(view, TRUE);
2426 static struct line *
2427 add_line_data(struct view *view, void *data, enum line_type type)
2429 struct line *line = &view->line[view->lines++];
2431 memset(line, 0, sizeof(*line));
2438 static struct line *
2439 add_line_text(struct view *view, const char *text, enum line_type type)
2441 char *data = text ? strdup(text) : NULL;
2443 return data ? add_line_data(view, data, type) : NULL;
2452 OPEN_DEFAULT = 0, /* Use default view switching. */
2453 OPEN_SPLIT = 1, /* Split current view. */
2454 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2455 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2456 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2457 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2461 open_view(struct view *prev, enum request request, enum open_flags flags)
2463 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2464 bool split = !!(flags & OPEN_SPLIT);
2465 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH));
2466 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2467 struct view *view = VIEW(request);
2468 int nviews = displayed_views();
2469 struct view *base_view = display[0];
2471 if (view == prev && nviews == 1 && !reload) {
2472 report("Already in %s view", view->name);
2476 if (view->git_dir && !opt_git_dir[0]) {
2477 report("The %s view is disabled in pager view", view->name);
2485 } else if (!nomaximize) {
2486 /* Maximize the current view. */
2487 memset(display, 0, sizeof(display));
2489 display[current_view] = view;
2492 /* Resize the view when switching between split- and full-screen,
2493 * or when switching between two different full-screen views. */
2494 if (nviews != displayed_views() ||
2495 (nviews == 1 && base_view != display[0]))
2499 end_update(view, TRUE);
2501 if (view->ops->open) {
2502 if (!view->ops->open(view)) {
2503 report("Failed to load %s view", view->name);
2507 } else if ((reload || strcmp(view->vid, view->id)) &&
2508 !begin_update(view, flags & OPEN_REFRESH)) {
2509 report("Failed to load %s view", view->name);
2513 if (split && prev->lineno - prev->offset >= prev->height) {
2514 /* Take the title line into account. */
2515 int lines = prev->lineno - prev->offset - prev->height + 1;
2517 /* Scroll the view that was split if the current line is
2518 * outside the new limited view. */
2519 do_scroll_view(prev, lines);
2522 if (prev && view != prev) {
2523 if (split && !backgrounded) {
2524 /* "Blur" the previous view. */
2525 update_view_title(prev);
2528 view->parent = prev;
2531 if (view->pipe && view->lines == 0) {
2532 /* Clear the old view and let the incremental updating refill
2536 } else if (view_is_displayed(view)) {
2541 /* If the view is backgrounded the above calls to report()
2542 * won't redraw the view title. */
2544 update_view_title(view);
2548 run_confirm(const char *cmd, const char *prompt)
2550 bool confirmation = prompt_yesno(prompt);
2555 return confirmation;
2559 open_external_viewer(const char *cmd)
2561 def_prog_mode(); /* save current tty modes */
2562 endwin(); /* restore original tty modes */
2564 fprintf(stderr, "Press Enter to continue");
2571 open_mergetool(const char *file)
2573 char cmd[SIZEOF_STR];
2574 char file_sq[SIZEOF_STR];
2576 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2577 string_format(cmd, "git mergetool %s", file_sq)) {
2578 open_external_viewer(cmd);
2583 open_editor(bool from_root, const char *file)
2585 char cmd[SIZEOF_STR];
2586 char file_sq[SIZEOF_STR];
2588 char *prefix = from_root ? opt_cdup : "";
2590 editor = getenv("GIT_EDITOR");
2591 if (!editor && *opt_editor)
2592 editor = opt_editor;
2594 editor = getenv("VISUAL");
2596 editor = getenv("EDITOR");
2600 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2601 string_format(cmd, "%s %s%s", editor, prefix, file_sq)) {
2602 open_external_viewer(cmd);
2607 open_run_request(enum request request)
2609 struct run_request *req = get_run_request(request);
2610 char buf[SIZEOF_STR * 2];
2615 report("Unknown run request");
2623 char *next = strstr(cmd, "%(");
2624 int len = next - cmd;
2631 } else if (!strncmp(next, "%(head)", 7)) {
2634 } else if (!strncmp(next, "%(commit)", 9)) {
2637 } else if (!strncmp(next, "%(blob)", 7)) {
2641 report("Unknown replacement in run request: `%s`", req->cmd);
2645 if (!string_format_from(buf, &bufpos, "%.*s%s", len, cmd, value))
2649 next = strchr(next, ')') + 1;
2653 open_external_viewer(buf);
2657 * User request switch noodle
2661 view_driver(struct view *view, enum request request)
2665 if (request == REQ_NONE) {
2670 if (request > REQ_NONE) {
2671 open_run_request(request);
2672 /* FIXME: When all views can refresh always do this. */
2673 if (view == VIEW(REQ_VIEW_STATUS) ||
2674 view == VIEW(REQ_VIEW_MAIN) ||
2675 view == VIEW(REQ_VIEW_LOG) ||
2676 view == VIEW(REQ_VIEW_STAGE))
2677 request = REQ_REFRESH;
2682 if (view && view->lines) {
2683 request = view->ops->request(view, request, &view->line[view->lineno]);
2684 if (request == REQ_NONE)
2691 case REQ_MOVE_PAGE_UP:
2692 case REQ_MOVE_PAGE_DOWN:
2693 case REQ_MOVE_FIRST_LINE:
2694 case REQ_MOVE_LAST_LINE:
2695 move_view(view, request);
2698 case REQ_SCROLL_LINE_DOWN:
2699 case REQ_SCROLL_LINE_UP:
2700 case REQ_SCROLL_PAGE_DOWN:
2701 case REQ_SCROLL_PAGE_UP:
2702 scroll_view(view, request);
2705 case REQ_VIEW_BLAME:
2707 report("No file chosen, press %s to open tree view",
2708 get_key(REQ_VIEW_TREE));
2711 open_view(view, request, OPEN_DEFAULT);
2716 report("No file chosen, press %s to open tree view",
2717 get_key(REQ_VIEW_TREE));
2720 open_view(view, request, OPEN_DEFAULT);
2723 case REQ_VIEW_PAGER:
2724 if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2725 report("No pager content, press %s to run command from prompt",
2726 get_key(REQ_PROMPT));
2729 open_view(view, request, OPEN_DEFAULT);
2732 case REQ_VIEW_STAGE:
2733 if (!VIEW(REQ_VIEW_STAGE)->lines) {
2734 report("No stage content, press %s to open the status view and choose file",
2735 get_key(REQ_VIEW_STATUS));
2738 open_view(view, request, OPEN_DEFAULT);
2741 case REQ_VIEW_STATUS:
2742 if (opt_is_inside_work_tree == FALSE) {
2743 report("The status view requires a working tree");
2746 open_view(view, request, OPEN_DEFAULT);
2754 open_view(view, request, OPEN_DEFAULT);
2759 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2761 if ((view == VIEW(REQ_VIEW_DIFF) &&
2762 view->parent == VIEW(REQ_VIEW_MAIN)) ||
2763 (view == VIEW(REQ_VIEW_DIFF) &&
2764 view->parent == VIEW(REQ_VIEW_BLAME)) ||
2765 (view == VIEW(REQ_VIEW_STAGE) &&
2766 view->parent == VIEW(REQ_VIEW_STATUS)) ||
2767 (view == VIEW(REQ_VIEW_BLOB) &&
2768 view->parent == VIEW(REQ_VIEW_TREE))) {
2771 view = view->parent;
2772 line = view->lineno;
2773 move_view(view, request);
2774 if (view_is_displayed(view))
2775 update_view_title(view);
2776 if (line != view->lineno)
2777 view->ops->request(view, REQ_ENTER,
2778 &view->line[view->lineno]);
2781 move_view(view, request);
2787 int nviews = displayed_views();
2788 int next_view = (current_view + 1) % nviews;
2790 if (next_view == current_view) {
2791 report("Only one view is displayed");
2795 current_view = next_view;
2796 /* Blur out the title of the previous view. */
2797 update_view_title(view);
2802 report("Refreshing is not yet supported for the %s view", view->name);
2806 if (displayed_views() == 2)
2807 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
2810 case REQ_TOGGLE_LINENO:
2811 opt_line_number = !opt_line_number;
2815 case REQ_TOGGLE_DATE:
2816 opt_date = !opt_date;
2820 case REQ_TOGGLE_AUTHOR:
2821 opt_author = !opt_author;
2825 case REQ_TOGGLE_REV_GRAPH:
2826 opt_rev_graph = !opt_rev_graph;
2830 case REQ_TOGGLE_REFS:
2831 opt_show_refs = !opt_show_refs;
2836 case REQ_SEARCH_BACK:
2837 search_view(view, request);
2842 find_next(view, request);
2845 case REQ_STOP_LOADING:
2846 for (i = 0; i < ARRAY_SIZE(views); i++) {
2849 report("Stopped loading the %s view", view->name),
2850 end_update(view, TRUE);
2854 case REQ_SHOW_VERSION:
2855 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
2858 case REQ_SCREEN_RESIZE:
2861 case REQ_SCREEN_REDRAW:
2866 report("Nothing to edit");
2870 report("Nothing to enter");
2873 case REQ_VIEW_CLOSE:
2874 /* XXX: Mark closed views by letting view->parent point to the
2875 * view itself. Parents to closed view should never be
2878 view->parent->parent != view->parent) {
2879 memset(display, 0, sizeof(display));
2881 display[current_view] = view->parent;
2882 view->parent = view;
2893 report("Unknown key, press 'h' for help");
2906 pager_draw(struct view *view, struct line *line, unsigned int lineno)
2908 char *text = line->data;
2910 if (opt_line_number && draw_lineno(view, lineno))
2913 draw_text(view, line->type, text, TRUE);
2918 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
2920 char refbuf[SIZEOF_STR];
2924 if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id))
2927 pipe = popen(refbuf, "r");
2931 if ((ref = fgets(refbuf, sizeof(refbuf), pipe)))
2932 ref = chomp_string(ref);
2938 /* This is the only fatal call, since it can "corrupt" the buffer. */
2939 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
2946 add_pager_refs(struct view *view, struct line *line)
2948 char buf[SIZEOF_STR];
2949 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
2951 size_t bufpos = 0, refpos = 0;
2952 const char *sep = "Refs: ";
2953 bool is_tag = FALSE;
2955 assert(line->type == LINE_COMMIT);
2957 refs = get_refs(commit_id);
2959 if (view == VIEW(REQ_VIEW_DIFF))
2960 goto try_add_describe_ref;
2965 struct ref *ref = refs[refpos];
2966 const char *fmt = ref->tag ? "%s[%s]" :
2967 ref->remote ? "%s<%s>" : "%s%s";
2969 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
2974 } while (refs[refpos++]->next);
2976 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
2977 try_add_describe_ref:
2978 /* Add <tag>-g<commit_id> "fake" reference. */
2979 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
2986 if (!realloc_lines(view, view->line_size + 1))
2989 add_line_text(view, buf, LINE_PP_REFS);
2993 pager_read(struct view *view, char *data)
3000 line = add_line_text(view, data, get_line_type(data));
3004 if (line->type == LINE_COMMIT &&
3005 (view == VIEW(REQ_VIEW_DIFF) ||
3006 view == VIEW(REQ_VIEW_LOG)))
3007 add_pager_refs(view, line);
3013 pager_request(struct view *view, enum request request, struct line *line)
3017 if (request != REQ_ENTER)
3020 if (line->type == LINE_COMMIT &&
3021 (view == VIEW(REQ_VIEW_LOG) ||
3022 view == VIEW(REQ_VIEW_PAGER))) {
3023 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3027 /* Always scroll the view even if it was split. That way
3028 * you can use Enter to scroll through the log view and
3029 * split open each commit diff. */
3030 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3032 /* FIXME: A minor workaround. Scrolling the view will call report("")
3033 * but if we are scrolling a non-current view this won't properly
3034 * update the view title. */
3036 update_view_title(view);
3042 pager_grep(struct view *view, struct line *line)
3045 char *text = line->data;
3050 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3057 pager_select(struct view *view, struct line *line)
3059 if (line->type == LINE_COMMIT) {
3060 char *text = (char *)line->data + STRING_SIZE("commit ");
3062 if (view != VIEW(REQ_VIEW_PAGER))
3063 string_copy_rev(view->ref, text);
3064 string_copy_rev(ref_commit, text);
3068 static struct view_ops pager_ops = {
3079 log_request(struct view *view, enum request request, struct line *line)
3084 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3087 return pager_request(view, request, line);
3091 static struct view_ops log_ops = {
3107 help_open(struct view *view)
3110 int lines = ARRAY_SIZE(req_info) + 2;
3113 if (view->lines > 0)
3116 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3117 if (!req_info[i].request)
3120 lines += run_requests + 1;
3122 view->line = calloc(lines, sizeof(*view->line));
3126 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3128 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3131 if (req_info[i].request == REQ_NONE)
3134 if (!req_info[i].request) {
3135 add_line_text(view, "", LINE_DEFAULT);
3136 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3140 key = get_key(req_info[i].request);
3142 key = "(no key defined)";
3144 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
3147 add_line_text(view, buf, LINE_DEFAULT);
3151 add_line_text(view, "", LINE_DEFAULT);
3152 add_line_text(view, "External commands:", LINE_DEFAULT);
3155 for (i = 0; i < run_requests; i++) {
3156 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3162 key = get_key_name(req->key);
3164 key = "(no key defined)";
3166 if (!string_format(buf, " %-10s %-14s `%s`",
3167 keymap_table[req->keymap].name,
3171 add_line_text(view, buf, LINE_DEFAULT);
3177 static struct view_ops help_ops = {
3192 struct tree_stack_entry {
3193 struct tree_stack_entry *prev; /* Entry below this in the stack */
3194 unsigned long lineno; /* Line number to restore */
3195 char *name; /* Position of name in opt_path */
3198 /* The top of the path stack. */
3199 static struct tree_stack_entry *tree_stack = NULL;
3200 unsigned long tree_lineno = 0;
3203 pop_tree_stack_entry(void)
3205 struct tree_stack_entry *entry = tree_stack;
3207 tree_lineno = entry->lineno;
3209 tree_stack = entry->prev;
3214 push_tree_stack_entry(const char *name, unsigned long lineno)
3216 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3217 size_t pathlen = strlen(opt_path);
3222 entry->prev = tree_stack;
3223 entry->name = opt_path + pathlen;
3226 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3227 pop_tree_stack_entry();
3231 /* Move the current line to the first tree entry. */
3233 entry->lineno = lineno;
3236 /* Parse output from git-ls-tree(1):
3238 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3239 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3240 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3241 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3244 #define SIZEOF_TREE_ATTR \
3245 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3247 #define TREE_UP_FORMAT "040000 tree %s\t.."
3250 tree_compare_entry(enum line_type type1, const char *name1,
3251 enum line_type type2, const char *name2)
3253 if (type1 != type2) {
3254 if (type1 == LINE_TREE_DIR)
3259 return strcmp(name1, name2);
3263 tree_path(struct line *line)
3265 const char *path = line->data;
3267 return path + SIZEOF_TREE_ATTR;
3271 tree_read(struct view *view, char *text)
3273 size_t textlen = text ? strlen(text) : 0;
3274 char buf[SIZEOF_STR];
3276 enum line_type type;
3277 bool first_read = view->lines == 0;
3281 if (textlen <= SIZEOF_TREE_ATTR)
3284 type = text[STRING_SIZE("100644 ")] == 't'
3285 ? LINE_TREE_DIR : LINE_TREE_FILE;
3288 /* Add path info line */
3289 if (!string_format(buf, "Directory path /%s", opt_path) ||
3290 !realloc_lines(view, view->line_size + 1) ||
3291 !add_line_text(view, buf, LINE_DEFAULT))
3294 /* Insert "link" to parent directory. */
3296 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
3297 !realloc_lines(view, view->line_size + 1) ||
3298 !add_line_text(view, buf, LINE_TREE_DIR))
3303 /* Strip the path part ... */
3305 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3306 size_t striplen = strlen(opt_path);
3307 char *path = text + SIZEOF_TREE_ATTR;
3309 if (pathlen > striplen)
3310 memmove(path, path + striplen,
3311 pathlen - striplen + 1);
3314 /* Skip "Directory ..." and ".." line. */
3315 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
3316 struct line *line = &view->line[pos];
3317 const char *path1 = tree_path(line);
3318 char *path2 = text + SIZEOF_TREE_ATTR;
3319 int cmp = tree_compare_entry(line->type, path1, type, path2);
3324 text = strdup(text);
3328 if (view->lines > pos)
3329 memmove(&view->line[pos + 1], &view->line[pos],
3330 (view->lines - pos) * sizeof(*line));
3332 line = &view->line[pos];
3339 if (!add_line_text(view, text, type))
3342 if (tree_lineno > view->lineno) {
3343 view->lineno = tree_lineno;
3351 tree_request(struct view *view, enum request request, struct line *line)
3353 enum open_flags flags;
3355 if (request == REQ_VIEW_BLAME) {
3356 const char *filename = tree_path(line);
3358 if (line->type == LINE_TREE_DIR) {
3359 report("Cannot show blame for directory %s", opt_path);
3363 string_copy(opt_ref, view->vid);
3364 string_format(opt_file, "%s%s", opt_path, filename);
3367 if (request == REQ_TREE_PARENT) {
3370 request = REQ_ENTER;
3371 line = &view->line[1];
3373 /* quit view if at top of tree */
3374 return REQ_VIEW_CLOSE;
3377 if (request != REQ_ENTER)
3380 /* Cleanup the stack if the tree view is at a different tree. */
3381 while (!*opt_path && tree_stack)
3382 pop_tree_stack_entry();
3384 switch (line->type) {
3386 /* Depending on whether it is a subdir or parent (updir?) link
3387 * mangle the path buffer. */
3388 if (line == &view->line[1] && *opt_path) {
3389 pop_tree_stack_entry();
3392 const char *basename = tree_path(line);
3394 push_tree_stack_entry(basename, view->lineno);
3397 /* Trees and subtrees share the same ID, so they are not not
3398 * unique like blobs. */
3399 flags = OPEN_RELOAD;
3400 request = REQ_VIEW_TREE;
3403 case LINE_TREE_FILE:
3404 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3405 request = REQ_VIEW_BLOB;
3412 open_view(view, request, flags);
3413 if (request == REQ_VIEW_TREE) {
3414 view->lineno = tree_lineno;
3421 tree_select(struct view *view, struct line *line)
3423 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3425 if (line->type == LINE_TREE_FILE) {
3426 string_copy_rev(ref_blob, text);
3428 } else if (line->type != LINE_TREE_DIR) {
3432 string_copy_rev(view->ref, text);
3435 static struct view_ops tree_ops = {
3446 blob_read(struct view *view, char *line)
3450 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3453 static struct view_ops blob_ops = {
3466 * Loading the blame view is a two phase job:
3468 * 1. File content is read either using opt_file from the
3469 * filesystem or using git-cat-file.
3470 * 2. Then blame information is incrementally added by
3471 * reading output from git-blame.
3474 struct blame_commit {
3475 char id[SIZEOF_REV]; /* SHA1 ID. */
3476 char title[128]; /* First line of the commit message. */
3477 char author[75]; /* Author of the commit. */
3478 struct tm time; /* Date from the author ident. */
3479 char filename[128]; /* Name of file. */
3483 struct blame_commit *commit;
3484 unsigned int header:1;
3488 #define BLAME_CAT_FILE_CMD "git cat-file blob %s:%s"
3489 #define BLAME_INCREMENTAL_CMD "git blame --incremental %s -- %s"
3492 blame_open(struct view *view)
3494 char path[SIZEOF_STR];
3495 char ref[SIZEOF_STR] = "";
3497 if (sq_quote(path, 0, opt_file) >= sizeof(path))
3500 if (*opt_ref && sq_quote(ref, 0, opt_ref) >= sizeof(ref))
3504 if (!string_format(view->cmd, BLAME_CAT_FILE_CMD, ref, path))
3507 view->pipe = fopen(opt_file, "r");
3509 !string_format(view->cmd, BLAME_CAT_FILE_CMD, "HEAD", path))
3514 view->pipe = popen(view->cmd, "r");
3518 if (!string_format(view->cmd, BLAME_INCREMENTAL_CMD, ref, path))
3522 string_format(view->ref, "%s ...", opt_file);
3523 string_copy_rev(view->vid, opt_file);
3524 set_nonblocking_input(TRUE);
3525 view->start_time = time(NULL);
3530 static struct blame_commit *
3531 get_blame_commit(struct view *view, const char *id)
3535 for (i = 0; i < view->lines; i++) {
3536 struct blame *blame = view->line[i].data;
3541 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3542 return blame->commit;
3546 struct blame_commit *commit = calloc(1, sizeof(*commit));
3549 string_ncopy(commit->id, id, SIZEOF_REV);
3555 parse_number(const char **posref, size_t *number, size_t min, size_t max)
3557 const char *pos = *posref;
3560 pos = strchr(pos + 1, ' ');
3561 if (!pos || !isdigit(pos[1]))
3563 *number = atoi(pos + 1);
3564 if (*number < min || *number > max)
3571 static struct blame_commit *
3572 parse_blame_commit(struct view *view, const char *text, int *blamed)
3574 struct blame_commit *commit;
3575 struct blame *blame;
3576 const char *pos = text + SIZEOF_REV - 1;
3580 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3583 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3584 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3587 commit = get_blame_commit(view, text);
3593 struct line *line = &view->line[lineno + group - 1];
3596 blame->commit = commit;
3597 blame->header = !group;
3605 blame_read_file(struct view *view, const char *line)
3610 if (view->lines > 0)
3611 pipe = popen(view->cmd, "r");
3612 else if (!view->parent)
3613 die("No blame exist for %s", view->vid);
3616 report("Failed to load blame data");
3625 size_t linelen = strlen(line);
3626 struct blame *blame = malloc(sizeof(*blame) + linelen);
3628 blame->commit = NULL;
3629 strncpy(blame->text, line, linelen);
3630 blame->text[linelen] = 0;
3631 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3636 match_blame_header(const char *name, char **line)
3638 size_t namelen = strlen(name);
3639 bool matched = !strncmp(name, *line, namelen);
3648 blame_read(struct view *view, char *line)
3650 static struct blame_commit *commit = NULL;
3651 static int blamed = 0;
3652 static time_t author_time;
3655 return blame_read_file(view, line);
3661 string_format(view->ref, "%s", view->vid);
3662 if (view_is_displayed(view)) {
3663 update_view_title(view);
3664 redraw_view_from(view, 0);
3670 commit = parse_blame_commit(view, line, &blamed);
3671 string_format(view->ref, "%s %2d%%", view->vid,
3672 blamed * 100 / view->lines);
3674 } else if (match_blame_header("author ", &line)) {
3675 string_ncopy(commit->author, line, strlen(line));
3677 } else if (match_blame_header("author-time ", &line)) {
3678 author_time = (time_t) atol(line);
3680 } else if (match_blame_header("author-tz ", &line)) {
3683 tz = ('0' - line[1]) * 60 * 60 * 10;
3684 tz += ('0' - line[2]) * 60 * 60;
3685 tz += ('0' - line[3]) * 60;
3686 tz += ('0' - line[4]) * 60;
3692 gmtime_r(&author_time, &commit->time);
3694 } else if (match_blame_header("summary ", &line)) {
3695 string_ncopy(commit->title, line, strlen(line));
3697 } else if (match_blame_header("filename ", &line)) {
3698 string_ncopy(commit->filename, line, strlen(line));
3706 blame_draw(struct view *view, struct line *line, unsigned int lineno)
3708 struct blame *blame = line->data;
3709 struct tm *time = NULL;
3710 const char *id = NULL, *author = NULL;
3712 if (blame->commit && *blame->commit->filename) {
3713 id = blame->commit->id;
3714 author = blame->commit->author;
3715 time = &blame->commit->time;
3718 if (opt_date && draw_date(view, time))
3722 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
3725 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
3728 if (draw_lineno(view, lineno))
3731 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
3736 blame_request(struct view *view, enum request request, struct line *line)
3738 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3739 struct blame *blame = line->data;
3743 if (!blame->commit) {
3744 report("No commit loaded yet");
3748 if (!strcmp(blame->commit->id, NULL_ID)) {
3749 char path[SIZEOF_STR];
3751 if (sq_quote(path, 0, view->vid) >= sizeof(path))
3753 string_format(opt_cmd, "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s 2>/dev/null", path);
3756 open_view(view, REQ_VIEW_DIFF, flags);
3767 blame_grep(struct view *view, struct line *line)
3769 struct blame *blame = line->data;
3770 struct blame_commit *commit = blame->commit;
3773 #define MATCH(text, on) \
3774 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3777 char buf[DATE_COLS + 1];
3779 if (MATCH(commit->title, 1) ||
3780 MATCH(commit->author, opt_author) ||
3781 MATCH(commit->id, opt_date))
3784 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
3789 return MATCH(blame->text, 1);
3795 blame_select(struct view *view, struct line *line)
3797 struct blame *blame = line->data;
3798 struct blame_commit *commit = blame->commit;
3803 if (!strcmp(commit->id, NULL_ID))
3804 string_ncopy(ref_commit, "HEAD", 4);
3806 string_copy_rev(ref_commit, commit->id);
3809 static struct view_ops blame_ops = {
3827 char rev[SIZEOF_REV];
3828 char name[SIZEOF_STR];
3832 char rev[SIZEOF_REV];
3833 char name[SIZEOF_STR];
3837 static char status_onbranch[SIZEOF_STR];
3838 static struct status stage_status;
3839 static enum line_type stage_line_type;
3840 static size_t stage_chunks;
3841 static int *stage_chunk;
3843 /* This should work even for the "On branch" line. */
3845 status_has_none(struct view *view, struct line *line)
3847 return line < view->line + view->lines && !line[1].data;
3850 /* Get fields from the diff line:
3851 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3854 status_get_diff(struct status *file, const char *buf, size_t bufsize)
3856 const char *old_mode = buf + 1;
3857 const char *new_mode = buf + 8;
3858 const char *old_rev = buf + 15;
3859 const char *new_rev = buf + 56;
3860 const char *status = buf + 97;
3863 old_mode[-1] != ':' ||
3864 new_mode[-1] != ' ' ||
3865 old_rev[-1] != ' ' ||
3866 new_rev[-1] != ' ' ||
3870 file->status = *status;
3872 string_copy_rev(file->old.rev, old_rev);
3873 string_copy_rev(file->new.rev, new_rev);
3875 file->old.mode = strtoul(old_mode, NULL, 8);
3876 file->new.mode = strtoul(new_mode, NULL, 8);
3878 file->old.name[0] = file->new.name[0] = 0;
3884 status_run(struct view *view, const char cmd[], char status, enum line_type type)
3886 struct status *file = NULL;
3887 struct status *unmerged = NULL;
3888 char buf[SIZEOF_STR * 4];
3892 pipe = popen(cmd, "r");
3896 add_line_data(view, NULL, type);
3898 while (!feof(pipe) && !ferror(pipe)) {
3902 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3905 bufsize += readsize;
3907 /* Process while we have NUL chars. */
3908 while ((sep = memchr(buf, 0, bufsize))) {
3909 size_t sepsize = sep - buf + 1;
3912 if (!realloc_lines(view, view->line_size + 1))
3915 file = calloc(1, sizeof(*file));
3919 add_line_data(view, file, type);
3922 /* Parse diff info part. */
3924 file->status = status;
3926 string_copy(file->old.rev, NULL_ID);
3928 } else if (!file->status) {
3929 if (!status_get_diff(file, buf, sepsize))
3933 memmove(buf, sep + 1, bufsize);
3935 sep = memchr(buf, 0, bufsize);
3938 sepsize = sep - buf + 1;
3940 /* Collapse all 'M'odified entries that
3941 * follow a associated 'U'nmerged entry.
3943 if (file->status == 'U') {
3946 } else if (unmerged) {
3947 int collapse = !strcmp(buf, unmerged->new.name);
3958 /* Grab the old name for rename/copy. */
3959 if (!*file->old.name &&
3960 (file->status == 'R' || file->status == 'C')) {
3961 sepsize = sep - buf + 1;
3962 string_ncopy(file->old.name, buf, sepsize);
3964 memmove(buf, sep + 1, bufsize);
3966 sep = memchr(buf, 0, bufsize);
3969 sepsize = sep - buf + 1;
3972 /* git-ls-files just delivers a NUL separated
3973 * list of file names similar to the second half
3974 * of the git-diff-* output. */
3975 string_ncopy(file->new.name, buf, sepsize);
3976 if (!*file->old.name)
3977 string_copy(file->old.name, file->new.name);
3979 memmove(buf, sep + 1, bufsize);
3990 if (!view->line[view->lines - 1].data)
3991 add_line_data(view, NULL, LINE_STAT_NONE);
3997 /* Don't show unmerged entries in the staged section. */
3998 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD"
3999 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
4000 #define STATUS_LIST_OTHER_CMD \
4001 "git ls-files -z --others --exclude-standard"
4002 #define STATUS_LIST_NO_HEAD_CMD \
4003 "git ls-files -z --cached --exclude-standard"
4005 #define STATUS_DIFF_INDEX_SHOW_CMD \
4006 "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null"
4008 #define STATUS_DIFF_FILES_SHOW_CMD \
4009 "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null"
4011 #define STATUS_DIFF_NO_HEAD_SHOW_CMD \
4012 "git diff --no-color --patch-with-stat /dev/null %s 2>/dev/null"
4014 /* First parse staged info using git-diff-index(1), then parse unstaged
4015 * info using git-diff-files(1), and finally untracked files using
4016 * git-ls-files(1). */
4018 status_open(struct view *view)
4020 unsigned long prev_lineno = view->lineno;
4024 if (!realloc_lines(view, view->line_size + 7))
4027 add_line_data(view, NULL, LINE_STAT_HEAD);
4029 string_copy(status_onbranch, "Initial commit");
4030 else if (!*opt_head)
4031 string_copy(status_onbranch, "Not currently on any branch");
4032 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4035 system("git update-index -q --refresh >/dev/null 2>/dev/null");
4038 if (!status_run(view, STATUS_LIST_NO_HEAD_CMD, 'A', LINE_STAT_STAGED))
4040 } else if (!status_run(view, STATUS_DIFF_INDEX_CMD, 0, LINE_STAT_STAGED)) {
4044 if (!status_run(view, STATUS_DIFF_FILES_CMD, 0, LINE_STAT_UNSTAGED) ||
4045 !status_run(view, STATUS_LIST_OTHER_CMD, '?', LINE_STAT_UNTRACKED))
4048 /* If all went well restore the previous line number to stay in
4049 * the context or select a line with something that can be
4051 if (prev_lineno >= view->lines)
4052 prev_lineno = view->lines - 1;
4053 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4055 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4058 /* If the above fails, always skip the "On branch" line. */
4059 if (prev_lineno < view->lines)
4060 view->lineno = prev_lineno;
4064 if (view->lineno < view->offset)
4065 view->offset = view->lineno;
4066 else if (view->offset + view->height <= view->lineno)
4067 view->offset = view->lineno - view->height + 1;
4073 status_draw(struct view *view, struct line *line, unsigned int lineno)
4075 struct status *status = line->data;
4076 enum line_type type;
4080 switch (line->type) {
4081 case LINE_STAT_STAGED:
4082 type = LINE_STAT_SECTION;
4083 text = "Changes to be committed:";
4086 case LINE_STAT_UNSTAGED:
4087 type = LINE_STAT_SECTION;
4088 text = "Changed but not updated:";
4091 case LINE_STAT_UNTRACKED:
4092 type = LINE_STAT_SECTION;
4093 text = "Untracked files:";
4096 case LINE_STAT_NONE:
4097 type = LINE_DEFAULT;
4098 text = " (no files)";
4101 case LINE_STAT_HEAD:
4102 type = LINE_STAT_HEAD;
4103 text = status_onbranch;
4110 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4112 buf[0] = status->status;
4113 if (draw_text(view, line->type, buf, TRUE))
4115 type = LINE_DEFAULT;
4116 text = status->new.name;
4119 draw_text(view, type, text, TRUE);
4124 status_enter(struct view *view, struct line *line)
4126 struct status *status = line->data;
4127 char oldpath[SIZEOF_STR] = "";
4128 char newpath[SIZEOF_STR] = "";
4131 enum open_flags split;
4133 if (line->type == LINE_STAT_NONE ||
4134 (!status && line[1].type == LINE_STAT_NONE)) {
4135 report("No file to diff");
4140 if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath))
4142 /* Diffs for unmerged entries are empty when pasing the
4143 * new path, so leave it empty. */
4144 if (status->status != 'U' &&
4145 sq_quote(newpath, 0, status->new.name) >= sizeof(newpath))
4150 line->type != LINE_STAT_UNTRACKED &&
4151 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
4154 switch (line->type) {
4155 case LINE_STAT_STAGED:
4157 if (!string_format_from(opt_cmd, &cmdsize,
4158 STATUS_DIFF_NO_HEAD_SHOW_CMD,
4162 if (!string_format_from(opt_cmd, &cmdsize,
4163 STATUS_DIFF_INDEX_SHOW_CMD,
4169 info = "Staged changes to %s";
4171 info = "Staged changes";
4174 case LINE_STAT_UNSTAGED:
4175 if (!string_format_from(opt_cmd, &cmdsize,
4176 STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath))
4179 info = "Unstaged changes to %s";
4181 info = "Unstaged changes";
4184 case LINE_STAT_UNTRACKED:
4189 report("No file to show");
4193 opt_pipe = fopen(status->new.name, "r");
4194 info = "Untracked file %s";
4197 case LINE_STAT_HEAD:
4201 die("line type %d not handled in switch", line->type);
4204 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4205 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | split);
4206 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4208 stage_status = *status;
4210 memset(&stage_status, 0, sizeof(stage_status));
4213 stage_line_type = line->type;
4215 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4222 status_exists(struct status *status, enum line_type type)
4224 struct view *view = VIEW(REQ_VIEW_STATUS);
4227 for (line = view->line; line < view->line + view->lines; line++) {
4228 struct status *pos = line->data;
4230 if (line->type == type && pos &&
4231 !strcmp(status->new.name, pos->new.name))
4240 status_update_prepare(enum line_type type)
4242 char cmd[SIZEOF_STR];
4246 type != LINE_STAT_UNTRACKED &&
4247 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4251 case LINE_STAT_STAGED:
4252 string_add(cmd, cmdsize, "git update-index -z --index-info");
4255 case LINE_STAT_UNSTAGED:
4256 case LINE_STAT_UNTRACKED:
4257 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
4261 die("line type %d not handled in switch", type);
4264 return popen(cmd, "w");
4268 status_update_write(FILE *pipe, struct status *status, enum line_type type)
4270 char buf[SIZEOF_STR];
4275 case LINE_STAT_STAGED:
4276 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4279 status->old.name, 0))
4283 case LINE_STAT_UNSTAGED:
4284 case LINE_STAT_UNTRACKED:
4285 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4290 die("line type %d not handled in switch", type);
4293 while (!ferror(pipe) && written < bufsize) {
4294 written += fwrite(buf + written, 1, bufsize - written, pipe);
4297 return written == bufsize;
4301 status_update_file(struct status *status, enum line_type type)
4303 FILE *pipe = status_update_prepare(type);
4309 result = status_update_write(pipe, status, type);
4315 status_update_files(struct view *view, struct line *line)
4317 FILE *pipe = status_update_prepare(line->type);
4319 struct line *pos = view->line + view->lines;
4326 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4329 for (file = 0, done = 0; result && file < files; line++, file++) {
4330 int almost_done = file * 100 / files;
4332 if (almost_done > done) {
4334 string_format(view->ref, "updating file %u of %u (%d%% done)",
4336 update_view_title(view);
4338 result = status_update_write(pipe, line->data, line->type);
4346 status_update(struct view *view)
4348 struct line *line = &view->line[view->lineno];
4350 assert(view->lines);
4353 /* This should work even for the "On branch" line. */
4354 if (line < view->line + view->lines && !line[1].data) {
4355 report("Nothing to update");
4359 if (!status_update_files(view, line + 1)) {
4360 report("Failed to update file status");
4364 } else if (!status_update_file(line->data, line->type)) {
4365 report("Failed to update file status");
4373 status_revert(struct status *status, enum line_type type, bool has_none)
4375 if (!status || type != LINE_STAT_UNSTAGED) {
4376 if (type == LINE_STAT_STAGED) {
4377 report("Cannot revert changes to staged files");
4378 } else if (type == LINE_STAT_UNTRACKED) {
4379 report("Cannot revert changes to untracked files");
4380 } else if (has_none) {
4381 report("Nothing to revert");
4383 report("Cannot revert changes to multiple files");
4388 char cmd[SIZEOF_STR];
4389 char file_sq[SIZEOF_STR];
4391 if (sq_quote(file_sq, 0, status->old.name) >= sizeof(file_sq) ||
4392 !string_format(cmd, "git checkout -- %s%s", opt_cdup, file_sq))
4395 return run_confirm(cmd, "Are you sure you want to overwrite any changes?");
4400 status_request(struct view *view, enum request request, struct line *line)
4402 struct status *status = line->data;
4405 case REQ_STATUS_UPDATE:
4406 if (!status_update(view))
4410 case REQ_STATUS_REVERT:
4411 if (!status_revert(status, line->type, status_has_none(view, line)))
4415 case REQ_STATUS_MERGE:
4416 if (!status || status->status != 'U') {
4417 report("Merging only possible for files with unmerged status ('U').");
4420 open_mergetool(status->new.name);
4427 open_editor(status->status != '?', status->new.name);
4430 case REQ_VIEW_BLAME:
4432 string_copy(opt_file, status->new.name);
4438 /* After returning the status view has been split to
4439 * show the stage view. No further reloading is
4441 status_enter(view, line);
4445 /* Simply reload the view. */
4452 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4458 status_select(struct view *view, struct line *line)
4460 struct status *status = line->data;
4461 char file[SIZEOF_STR] = "all files";
4465 if (status && !string_format(file, "'%s'", status->new.name))
4468 if (!status && line[1].type == LINE_STAT_NONE)
4471 switch (line->type) {
4472 case LINE_STAT_STAGED:
4473 text = "Press %s to unstage %s for commit";
4476 case LINE_STAT_UNSTAGED:
4477 text = "Press %s to stage %s for commit";
4480 case LINE_STAT_UNTRACKED:
4481 text = "Press %s to stage %s for addition";
4484 case LINE_STAT_HEAD:
4485 case LINE_STAT_NONE:
4486 text = "Nothing to update";
4490 die("line type %d not handled in switch", line->type);
4493 if (status && status->status == 'U') {
4494 text = "Press %s to resolve conflict in %s";
4495 key = get_key(REQ_STATUS_MERGE);
4498 key = get_key(REQ_STATUS_UPDATE);
4501 string_format(view->ref, text, key, file);
4505 status_grep(struct view *view, struct line *line)
4507 struct status *status = line->data;
4508 enum { S_STATUS, S_NAME, S_END } state;
4515 for (state = S_STATUS; state < S_END; state++) {
4519 case S_NAME: text = status->new.name; break;
4521 buf[0] = status->status;
4529 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4536 static struct view_ops status_ops = {
4548 stage_diff_line(FILE *pipe, struct line *line)
4550 const char *buf = line->data;
4551 size_t bufsize = strlen(buf);
4554 while (!ferror(pipe) && written < bufsize) {
4555 written += fwrite(buf + written, 1, bufsize - written, pipe);
4560 return written == bufsize;
4564 stage_diff_write(FILE *pipe, struct line *line, struct line *end)
4566 while (line < end) {
4567 if (!stage_diff_line(pipe, line++))
4569 if (line->type == LINE_DIFF_CHUNK ||
4570 line->type == LINE_DIFF_HEADER)
4577 static struct line *
4578 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4580 for (; view->line < line; line--)
4581 if (line->type == type)
4588 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
4590 char cmd[SIZEOF_STR];
4592 struct line *diff_hdr;
4595 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4600 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4603 if (!string_format_from(cmd, &cmdsize,
4604 "git apply --whitespace=nowarn %s %s - && "
4605 "git update-index -q --unmerged --refresh 2>/dev/null",
4606 revert ? "" : "--cached",
4607 revert || stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
4610 pipe = popen(cmd, "w");
4614 if (!stage_diff_write(pipe, diff_hdr, chunk) ||
4615 !stage_diff_write(pipe, chunk, view->line + view->lines))
4620 return chunk ? TRUE : FALSE;
4624 stage_update(struct view *view, struct line *line)
4626 struct line *chunk = NULL;
4628 if (!opt_no_head && stage_line_type != LINE_STAT_UNTRACKED)
4629 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4632 if (!stage_apply_chunk(view, chunk, FALSE)) {
4633 report("Failed to apply chunk");
4637 } else if (!stage_status.status) {
4638 view = VIEW(REQ_VIEW_STATUS);
4640 for (line = view->line; line < view->line + view->lines; line++)
4641 if (line->type == stage_line_type)
4644 if (!status_update_files(view, line + 1)) {
4645 report("Failed to update files");
4649 } else if (!status_update_file(&stage_status, stage_line_type)) {
4650 report("Failed to update file");
4658 stage_revert(struct view *view, struct line *line)
4660 struct line *chunk = NULL;
4662 if (!opt_no_head && stage_line_type == LINE_STAT_UNSTAGED)
4663 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4666 if (!prompt_yesno("Are you sure you want to revert changes?"))
4669 if (!stage_apply_chunk(view, chunk, TRUE)) {
4670 report("Failed to revert chunk");
4676 return status_revert(stage_status.status ? &stage_status : NULL,
4677 stage_line_type, FALSE);
4683 stage_next(struct view *view, struct line *line)
4687 if (!stage_chunks) {
4688 static size_t alloc = 0;
4691 for (line = view->line; line < view->line + view->lines; line++) {
4692 if (line->type != LINE_DIFF_CHUNK)
4695 tmp = realloc_items(stage_chunk, &alloc,
4696 stage_chunks, sizeof(*tmp));
4698 report("Allocation failure");
4703 stage_chunk[stage_chunks++] = line - view->line;
4707 for (i = 0; i < stage_chunks; i++) {
4708 if (stage_chunk[i] > view->lineno) {
4709 do_scroll_view(view, stage_chunk[i] - view->lineno);
4710 report("Chunk %d of %d", i + 1, stage_chunks);
4715 report("No next chunk found");
4719 stage_request(struct view *view, enum request request, struct line *line)
4722 case REQ_STATUS_UPDATE:
4723 if (!stage_update(view, line))
4727 case REQ_STATUS_REVERT:
4728 if (!stage_revert(view, line))
4732 case REQ_STAGE_NEXT:
4733 if (stage_line_type == LINE_STAT_UNTRACKED) {
4734 report("File is untracked; press %s to add",
4735 get_key(REQ_STATUS_UPDATE));
4738 stage_next(view, line);
4742 if (!stage_status.new.name[0])
4745 open_editor(stage_status.status != '?', stage_status.new.name);
4749 /* Reload everything ... */
4752 case REQ_VIEW_BLAME:
4753 if (stage_status.new.name[0]) {
4754 string_copy(opt_file, stage_status.new.name);
4760 return pager_request(view, request, line);
4766 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4768 /* Check whether the staged entry still exists, and close the
4769 * stage view if it doesn't. */
4770 if (!status_exists(&stage_status, stage_line_type))
4771 return REQ_VIEW_CLOSE;
4773 if (stage_line_type == LINE_STAT_UNTRACKED)
4774 opt_pipe = fopen(stage_status.new.name, "r");
4775 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
4780 static struct view_ops stage_ops = {
4796 char id[SIZEOF_REV]; /* SHA1 ID. */
4797 char title[128]; /* First line of the commit message. */
4798 char author[75]; /* Author of the commit. */
4799 struct tm time; /* Date from the author ident. */
4800 struct ref **refs; /* Repository references. */
4801 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
4802 size_t graph_size; /* The width of the graph array. */
4803 bool has_parents; /* Rewritten --parents seen. */
4806 /* Size of rev graph with no "padding" columns */
4807 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
4810 struct rev_graph *prev, *next, *parents;
4811 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
4813 struct commit *commit;
4815 unsigned int boundary:1;
4818 /* Parents of the commit being visualized. */
4819 static struct rev_graph graph_parents[4];
4821 /* The current stack of revisions on the graph. */
4822 static struct rev_graph graph_stacks[4] = {
4823 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
4824 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
4825 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
4826 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
4830 graph_parent_is_merge(struct rev_graph *graph)
4832 return graph->parents->size > 1;
4836 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
4838 struct commit *commit = graph->commit;
4840 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
4841 commit->graph[commit->graph_size++] = symbol;
4845 clear_rev_graph(struct rev_graph *graph)
4847 graph->boundary = 0;
4848 graph->size = graph->pos = 0;
4849 graph->commit = NULL;
4850 memset(graph->parents, 0, sizeof(*graph->parents));
4854 done_rev_graph(struct rev_graph *graph)
4856 if (graph_parent_is_merge(graph) &&
4857 graph->pos < graph->size - 1 &&
4858 graph->next->size == graph->size + graph->parents->size - 1) {
4859 size_t i = graph->pos + graph->parents->size - 1;
4861 graph->commit->graph_size = i * 2;
4862 while (i < graph->next->size - 1) {
4863 append_to_rev_graph(graph, ' ');
4864 append_to_rev_graph(graph, '\\');
4869 clear_rev_graph(graph);
4873 push_rev_graph(struct rev_graph *graph, const char *parent)
4877 /* "Collapse" duplicate parents lines.
4879 * FIXME: This needs to also update update the drawn graph but
4880 * for now it just serves as a method for pruning graph lines. */
4881 for (i = 0; i < graph->size; i++)
4882 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
4885 if (graph->size < SIZEOF_REVITEMS) {
4886 string_copy_rev(graph->rev[graph->size++], parent);
4891 get_rev_graph_symbol(struct rev_graph *graph)
4895 if (graph->boundary)
4896 symbol = REVGRAPH_BOUND;
4897 else if (graph->parents->size == 0)
4898 symbol = REVGRAPH_INIT;
4899 else if (graph_parent_is_merge(graph))
4900 symbol = REVGRAPH_MERGE;
4901 else if (graph->pos >= graph->size)
4902 symbol = REVGRAPH_BRANCH;
4904 symbol = REVGRAPH_COMMIT;
4910 draw_rev_graph(struct rev_graph *graph)
4913 chtype separator, line;
4915 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
4916 static struct rev_filler fillers[] = {
4922 chtype symbol = get_rev_graph_symbol(graph);
4923 struct rev_filler *filler;
4926 if (opt_line_graphics)
4927 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
4929 filler = &fillers[DEFAULT];
4931 for (i = 0; i < graph->pos; i++) {
4932 append_to_rev_graph(graph, filler->line);
4933 if (graph_parent_is_merge(graph->prev) &&
4934 graph->prev->pos == i)
4935 filler = &fillers[RSHARP];
4937 append_to_rev_graph(graph, filler->separator);
4940 /* Place the symbol for this revision. */
4941 append_to_rev_graph(graph, symbol);
4943 if (graph->prev->size > graph->size)
4944 filler = &fillers[RDIAG];
4946 filler = &fillers[DEFAULT];
4950 for (; i < graph->size; i++) {
4951 append_to_rev_graph(graph, filler->separator);
4952 append_to_rev_graph(graph, filler->line);
4953 if (graph_parent_is_merge(graph->prev) &&
4954 i < graph->prev->pos + graph->parents->size)
4955 filler = &fillers[RSHARP];
4956 if (graph->prev->size > graph->size)
4957 filler = &fillers[LDIAG];
4960 if (graph->prev->size > graph->size) {
4961 append_to_rev_graph(graph, filler->separator);
4962 if (filler->line != ' ')
4963 append_to_rev_graph(graph, filler->line);
4967 /* Prepare the next rev graph */
4969 prepare_rev_graph(struct rev_graph *graph)
4973 /* First, traverse all lines of revisions up to the active one. */
4974 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
4975 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
4978 push_rev_graph(graph->next, graph->rev[graph->pos]);
4981 /* Interleave the new revision parent(s). */
4982 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
4983 push_rev_graph(graph->next, graph->parents->rev[i]);
4985 /* Lastly, put any remaining revisions. */
4986 for (i = graph->pos + 1; i < graph->size; i++)
4987 push_rev_graph(graph->next, graph->rev[i]);
4991 update_rev_graph(struct rev_graph *graph)
4993 /* If this is the finalizing update ... */
4995 prepare_rev_graph(graph);
4997 /* Graph visualization needs a one rev look-ahead,
4998 * so the first update doesn't visualize anything. */
4999 if (!graph->prev->commit)
5002 draw_rev_graph(graph->prev);
5003 done_rev_graph(graph->prev->prev);
5012 main_draw(struct view *view, struct line *line, unsigned int lineno)
5014 struct commit *commit = line->data;
5016 if (!*commit->author)
5019 if (opt_date && draw_date(view, &commit->time))
5023 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5026 if (opt_rev_graph && commit->graph_size &&
5027 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5030 if (opt_show_refs && commit->refs) {
5034 enum line_type type;
5036 if (commit->refs[i]->head)
5037 type = LINE_MAIN_HEAD;
5038 else if (commit->refs[i]->ltag)
5039 type = LINE_MAIN_LOCAL_TAG;
5040 else if (commit->refs[i]->tag)
5041 type = LINE_MAIN_TAG;
5042 else if (commit->refs[i]->tracked)
5043 type = LINE_MAIN_TRACKED;
5044 else if (commit->refs[i]->remote)
5045 type = LINE_MAIN_REMOTE;
5047 type = LINE_MAIN_REF;
5049 if (draw_text(view, type, "[", TRUE) ||
5050 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5051 draw_text(view, type, "]", TRUE))
5054 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5056 } while (commit->refs[i++]->next);
5059 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5063 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5065 main_read(struct view *view, char *line)
5067 static struct rev_graph *graph = graph_stacks;
5068 enum line_type type;
5069 struct commit *commit;
5074 if (!view->lines && !view->parent)
5075 die("No revisions match the given arguments.");
5076 if (view->lines > 0) {
5077 commit = view->line[view->lines - 1].data;
5078 if (!*commit->author) {
5081 graph->commit = NULL;
5084 update_rev_graph(graph);
5086 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5087 clear_rev_graph(&graph_stacks[i]);
5091 type = get_line_type(line);
5092 if (type == LINE_COMMIT) {
5093 commit = calloc(1, sizeof(struct commit));
5097 line += STRING_SIZE("commit ");
5099 graph->boundary = 1;
5103 string_copy_rev(commit->id, line);
5104 commit->refs = get_refs(commit->id);
5105 graph->commit = commit;
5106 add_line_data(view, commit, LINE_MAIN_COMMIT);
5108 while ((line = strchr(line, ' '))) {
5110 push_rev_graph(graph->parents, line);
5111 commit->has_parents = TRUE;
5118 commit = view->line[view->lines - 1].data;
5122 if (commit->has_parents)
5124 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5129 /* Parse author lines where the name may be empty:
5130 * author <email@address.tld> 1138474660 +0100
5132 char *ident = line + STRING_SIZE("author ");
5133 char *nameend = strchr(ident, '<');
5134 char *emailend = strchr(ident, '>');
5136 if (!nameend || !emailend)
5139 update_rev_graph(graph);
5140 graph = graph->next;
5142 *nameend = *emailend = 0;
5143 ident = chomp_string(ident);
5145 ident = chomp_string(nameend + 1);
5150 string_ncopy(commit->author, ident, strlen(ident));
5152 /* Parse epoch and timezone */
5153 if (emailend[1] == ' ') {
5154 char *secs = emailend + 2;
5155 char *zone = strchr(secs, ' ');
5156 time_t time = (time_t) atol(secs);
5158 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5162 tz = ('0' - zone[1]) * 60 * 60 * 10;
5163 tz += ('0' - zone[2]) * 60 * 60;
5164 tz += ('0' - zone[3]) * 60;
5165 tz += ('0' - zone[4]) * 60;
5173 gmtime_r(&time, &commit->time);
5178 /* Fill in the commit title if it has not already been set. */
5179 if (commit->title[0])
5182 /* Require titles to start with a non-space character at the
5183 * offset used by git log. */
5184 if (strncmp(line, " ", 4))
5187 /* Well, if the title starts with a whitespace character,
5188 * try to be forgiving. Otherwise we end up with no title. */
5189 while (isspace(*line))
5193 /* FIXME: More graceful handling of titles; append "..." to
5194 * shortened titles, etc. */
5196 string_ncopy(commit->title, line, strlen(line));
5203 main_request(struct view *view, enum request request, struct line *line)
5205 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5209 open_view(view, REQ_VIEW_DIFF, flags);
5213 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5223 grep_refs(struct ref **refs, regex_t *regex)
5231 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5233 } while (refs[i++]->next);
5239 main_grep(struct view *view, struct line *line)
5241 struct commit *commit = line->data;
5242 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5243 char buf[DATE_COLS + 1];
5246 for (state = S_TITLE; state < S_END; state++) {
5250 case S_TITLE: text = commit->title; break;
5254 text = commit->author;
5259 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5266 if (grep_refs(commit->refs, view->regex) == TRUE)
5273 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5281 main_select(struct view *view, struct line *line)
5283 struct commit *commit = line->data;
5285 string_copy_rev(view->ref, commit->id);
5286 string_copy_rev(ref_commit, view->ref);
5289 static struct view_ops main_ops = {
5301 * Unicode / UTF-8 handling
5303 * NOTE: Much of the following code for dealing with unicode is derived from
5304 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5305 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5308 /* I've (over)annotated a lot of code snippets because I am not entirely
5309 * confident that the approach taken by this small UTF-8 interface is correct.
5313 unicode_width(unsigned long c)
5316 (c <= 0x115f /* Hangul Jamo */
5319 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5321 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5322 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5323 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5324 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5325 || (c >= 0xffe0 && c <= 0xffe6)
5326 || (c >= 0x20000 && c <= 0x2fffd)
5327 || (c >= 0x30000 && c <= 0x3fffd)))
5331 return opt_tab_size;
5336 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5337 * Illegal bytes are set one. */
5338 static const unsigned char utf8_bytes[256] = {
5339 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,
5340 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,
5341 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,
5342 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,
5343 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,
5344 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,
5345 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,
5346 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,
5349 /* Decode UTF-8 multi-byte representation into a unicode character. */
5350 static inline unsigned long
5351 utf8_to_unicode(const char *string, size_t length)
5353 unsigned long unicode;
5357 unicode = string[0];
5360 unicode = (string[0] & 0x1f) << 6;
5361 unicode += (string[1] & 0x3f);
5364 unicode = (string[0] & 0x0f) << 12;
5365 unicode += ((string[1] & 0x3f) << 6);
5366 unicode += (string[2] & 0x3f);
5369 unicode = (string[0] & 0x0f) << 18;
5370 unicode += ((string[1] & 0x3f) << 12);
5371 unicode += ((string[2] & 0x3f) << 6);
5372 unicode += (string[3] & 0x3f);
5375 unicode = (string[0] & 0x0f) << 24;
5376 unicode += ((string[1] & 0x3f) << 18);
5377 unicode += ((string[2] & 0x3f) << 12);
5378 unicode += ((string[3] & 0x3f) << 6);
5379 unicode += (string[4] & 0x3f);
5382 unicode = (string[0] & 0x01) << 30;
5383 unicode += ((string[1] & 0x3f) << 24);
5384 unicode += ((string[2] & 0x3f) << 18);
5385 unicode += ((string[3] & 0x3f) << 12);
5386 unicode += ((string[4] & 0x3f) << 6);
5387 unicode += (string[5] & 0x3f);
5390 die("Invalid unicode length");
5393 /* Invalid characters could return the special 0xfffd value but NUL
5394 * should be just as good. */
5395 return unicode > 0xffff ? 0 : unicode;
5398 /* Calculates how much of string can be shown within the given maximum width
5399 * and sets trimmed parameter to non-zero value if all of string could not be
5400 * shown. If the reserve flag is TRUE, it will reserve at least one
5401 * trailing character, which can be useful when drawing a delimiter.
5403 * Returns the number of bytes to output from string to satisfy max_width. */
5405 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5407 const char *start = string;
5408 const char *end = strchr(string, '\0');
5409 unsigned char last_bytes = 0;
5410 size_t last_ucwidth = 0;
5415 while (string < end) {
5416 int c = *(unsigned char *) string;
5417 unsigned char bytes = utf8_bytes[c];
5419 unsigned long unicode;
5421 if (string + bytes > end)
5424 /* Change representation to figure out whether
5425 * it is a single- or double-width character. */
5427 unicode = utf8_to_unicode(string, bytes);
5428 /* FIXME: Graceful handling of invalid unicode character. */
5432 ucwidth = unicode_width(unicode);
5434 if (*width > max_width) {
5437 if (reserve && *width == max_width) {
5438 string -= last_bytes;
5439 *width -= last_ucwidth;
5446 last_ucwidth = ucwidth;
5449 return string - start;
5457 /* Whether or not the curses interface has been initialized. */
5458 static bool cursed = FALSE;
5460 /* The status window is used for polling keystrokes. */
5461 static WINDOW *status_win;
5463 static bool status_empty = TRUE;
5465 /* Update status and title window. */
5467 report(const char *msg, ...)
5469 struct view *view = display[current_view];
5475 char buf[SIZEOF_STR];
5478 va_start(args, msg);
5479 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5480 buf[sizeof(buf) - 1] = 0;
5481 buf[sizeof(buf) - 2] = '.';
5482 buf[sizeof(buf) - 3] = '.';
5483 buf[sizeof(buf) - 4] = '.';
5489 if (!status_empty || *msg) {
5492 va_start(args, msg);
5494 wmove(status_win, 0, 0);
5496 vwprintw(status_win, msg, args);
5497 status_empty = FALSE;
5499 status_empty = TRUE;
5501 wclrtoeol(status_win);
5502 wrefresh(status_win);
5507 update_view_title(view);
5508 update_display_cursor(view);
5511 /* Controls when nodelay should be in effect when polling user input. */
5513 set_nonblocking_input(bool loading)
5515 static unsigned int loading_views;
5517 if ((loading == FALSE && loading_views-- == 1) ||
5518 (loading == TRUE && loading_views++ == 0))
5519 nodelay(status_win, loading);
5527 /* Initialize the curses library */
5528 if (isatty(STDIN_FILENO)) {
5529 cursed = !!initscr();
5531 /* Leave stdin and stdout alone when acting as a pager. */
5532 FILE *io = fopen("/dev/tty", "r+");
5535 die("Failed to open /dev/tty");
5536 cursed = !!newterm(NULL, io, io);
5540 die("Failed to initialize curses");
5542 nonl(); /* Tell curses not to do NL->CR/NL on output */
5543 cbreak(); /* Take input chars one at a time, no wait for \n */
5544 noecho(); /* Don't echo input */
5545 leaveok(stdscr, TRUE);
5550 getmaxyx(stdscr, y, x);
5551 status_win = newwin(1, 0, y - 1, 0);
5553 die("Failed to create status window");
5555 /* Enable keyboard mapping */
5556 keypad(status_win, TRUE);
5557 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5559 TABSIZE = opt_tab_size;
5560 if (opt_line_graphics) {
5561 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5566 prompt_yesno(const char *prompt)
5568 enum { WAIT, STOP, CANCEL } status = WAIT;
5569 bool answer = FALSE;
5571 while (status == WAIT) {
5577 foreach_view (view, i)
5582 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
5583 wclrtoeol(status_win);
5585 /* Refresh, accept single keystroke of input */
5586 key = wgetch(status_win);
5610 /* Clear the status window */
5611 status_empty = FALSE;
5618 read_prompt(const char *prompt)
5620 enum { READING, STOP, CANCEL } status = READING;
5621 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
5624 while (status == READING) {
5630 foreach_view (view, i)
5635 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5636 wclrtoeol(status_win);
5638 /* Refresh, accept single keystroke of input */
5639 key = wgetch(status_win);
5644 status = pos ? STOP : CANCEL;
5662 if (pos >= sizeof(buf)) {
5663 report("Input string too long");
5668 buf[pos++] = (char) key;
5672 /* Clear the status window */
5673 status_empty = FALSE;
5676 if (status == CANCEL)
5685 * Repository references
5688 static struct ref *refs = NULL;
5689 static size_t refs_alloc = 0;
5690 static size_t refs_size = 0;
5692 /* Id <-> ref store */
5693 static struct ref ***id_refs = NULL;
5694 static size_t id_refs_alloc = 0;
5695 static size_t id_refs_size = 0;
5698 compare_refs(const void *ref1_, const void *ref2_)
5700 const struct ref *ref1 = *(const struct ref **)ref1_;
5701 const struct ref *ref2 = *(const struct ref **)ref2_;
5703 if (ref1->tag != ref2->tag)
5704 return ref2->tag - ref1->tag;
5705 if (ref1->ltag != ref2->ltag)
5706 return ref2->ltag - ref2->ltag;
5707 if (ref1->head != ref2->head)
5708 return ref2->head - ref1->head;
5709 if (ref1->tracked != ref2->tracked)
5710 return ref2->tracked - ref1->tracked;
5711 if (ref1->remote != ref2->remote)
5712 return ref2->remote - ref1->remote;
5713 return strcmp(ref1->name, ref2->name);
5716 static struct ref **
5717 get_refs(const char *id)
5719 struct ref ***tmp_id_refs;
5720 struct ref **ref_list = NULL;
5721 size_t ref_list_alloc = 0;
5722 size_t ref_list_size = 0;
5725 for (i = 0; i < id_refs_size; i++)
5726 if (!strcmp(id, id_refs[i][0]->id))
5729 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
5734 id_refs = tmp_id_refs;
5736 for (i = 0; i < refs_size; i++) {
5739 if (strcmp(id, refs[i].id))
5742 tmp = realloc_items(ref_list, &ref_list_alloc,
5743 ref_list_size + 1, sizeof(*ref_list));
5751 ref_list[ref_list_size] = &refs[i];
5752 /* XXX: The properties of the commit chains ensures that we can
5753 * safely modify the shared ref. The repo references will
5754 * always be similar for the same id. */
5755 ref_list[ref_list_size]->next = 1;
5761 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
5762 ref_list[ref_list_size - 1]->next = 0;
5763 id_refs[id_refs_size++] = ref_list;
5770 read_ref(char *id, size_t idlen, char *name, size_t namelen)
5775 bool remote = FALSE;
5776 bool tracked = FALSE;
5777 bool check_replace = FALSE;
5780 if (!prefixcmp(name, "refs/tags/")) {
5781 if (!strcmp(name + namelen - 3, "^{}")) {
5784 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
5785 check_replace = TRUE;
5791 namelen -= STRING_SIZE("refs/tags/");
5792 name += STRING_SIZE("refs/tags/");
5794 } else if (!prefixcmp(name, "refs/remotes/")) {
5796 namelen -= STRING_SIZE("refs/remotes/");
5797 name += STRING_SIZE("refs/remotes/");
5798 tracked = !strcmp(opt_remote, name);
5800 } else if (!prefixcmp(name, "refs/heads/")) {
5801 namelen -= STRING_SIZE("refs/heads/");
5802 name += STRING_SIZE("refs/heads/");
5803 head = !strncmp(opt_head, name, namelen);
5805 } else if (!strcmp(name, "HEAD")) {
5806 opt_no_head = FALSE;
5810 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
5811 /* it's an annotated tag, replace the previous sha1 with the
5812 * resolved commit id; relies on the fact git-ls-remote lists
5813 * the commit id of an annotated tag right before the commit id
5815 refs[refs_size - 1].ltag = ltag;
5816 string_copy_rev(refs[refs_size - 1].id, id);
5820 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
5824 ref = &refs[refs_size++];
5825 ref->name = malloc(namelen + 1);
5829 strncpy(ref->name, name, namelen);
5830 ref->name[namelen] = 0;
5834 ref->remote = remote;
5835 ref->tracked = tracked;
5836 string_copy_rev(ref->id, id);
5844 const char *cmd_env = getenv("TIG_LS_REMOTE");
5845 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
5850 while (refs_size > 0)
5851 free(refs[--refs_size].name);
5852 while (id_refs_size > 0)
5853 free(id_refs[--id_refs_size]);
5855 return read_properties(popen(cmd, "r"), "\t", read_ref);
5859 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
5861 if (!strcmp(name, "i18n.commitencoding"))
5862 string_ncopy(opt_encoding, value, valuelen);
5864 if (!strcmp(name, "core.editor"))
5865 string_ncopy(opt_editor, value, valuelen);
5867 /* branch.<head>.remote */
5869 !strncmp(name, "branch.", 7) &&
5870 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5871 !strcmp(name + 7 + strlen(opt_head), ".remote"))
5872 string_ncopy(opt_remote, value, valuelen);
5874 if (*opt_head && *opt_remote &&
5875 !strncmp(name, "branch.", 7) &&
5876 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5877 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
5878 size_t from = strlen(opt_remote);
5880 if (!prefixcmp(value, "refs/heads/")) {
5881 value += STRING_SIZE("refs/heads/");
5882 valuelen -= STRING_SIZE("refs/heads/");
5885 if (!string_format_from(opt_remote, &from, "/%s", value))
5893 load_git_config(void)
5895 return read_properties(popen("git " GIT_CONFIG " --list", "r"),
5896 "=", read_repo_config_option);
5900 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
5902 if (!opt_git_dir[0]) {
5903 string_ncopy(opt_git_dir, name, namelen);
5905 } else if (opt_is_inside_work_tree == -1) {
5906 /* This can be 3 different values depending on the
5907 * version of git being used. If git-rev-parse does not
5908 * understand --is-inside-work-tree it will simply echo
5909 * the option else either "true" or "false" is printed.
5910 * Default to true for the unknown case. */
5911 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
5913 } else if (opt_cdup[0] == ' ') {
5914 string_ncopy(opt_cdup, name, namelen);
5916 if (!prefixcmp(name, "refs/heads/")) {
5917 namelen -= STRING_SIZE("refs/heads/");
5918 name += STRING_SIZE("refs/heads/");
5919 string_ncopy(opt_head, name, namelen);
5927 load_repo_info(void)
5930 FILE *pipe = popen("(git rev-parse --git-dir --is-inside-work-tree "
5931 " --show-cdup; git symbolic-ref HEAD) 2>/dev/null", "r");
5933 /* XXX: The line outputted by "--show-cdup" can be empty so
5934 * initialize it to something invalid to make it possible to
5935 * detect whether it has been set or not. */
5938 result = read_properties(pipe, "=", read_repo_info);
5939 if (opt_cdup[0] == ' ')
5946 read_properties(FILE *pipe, const char *separators,
5947 int (*read_property)(char *, size_t, char *, size_t))
5949 char buffer[BUFSIZ];
5956 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
5961 name = chomp_string(name);
5962 namelen = strcspn(name, separators);
5964 if (name[namelen]) {
5966 value = chomp_string(name + namelen + 1);
5967 valuelen = strlen(value);
5974 state = read_property(name, namelen, value, valuelen);
5977 if (state != ERR && ferror(pipe))
5990 static void __NORETURN
5993 /* XXX: Restore tty modes and let the OS cleanup the rest! */
5999 static void __NORETURN
6000 die(const char *err, ...)
6006 va_start(args, err);
6007 fputs("tig: ", stderr);
6008 vfprintf(stderr, err, args);
6009 fputs("\n", stderr);
6016 warn(const char *msg, ...)
6020 va_start(args, msg);
6021 fputs("tig warning: ", stderr);
6022 vfprintf(stderr, msg, args);
6023 fputs("\n", stderr);
6028 main(int argc, const char *argv[])
6031 enum request request;
6034 signal(SIGINT, quit);
6036 if (setlocale(LC_ALL, "")) {
6037 char *codeset = nl_langinfo(CODESET);
6039 string_ncopy(opt_codeset, codeset, strlen(codeset));
6042 if (load_repo_info() == ERR)
6043 die("Failed to load repo info.");
6045 if (load_options() == ERR)
6046 die("Failed to load user config.");
6048 if (load_git_config() == ERR)
6049 die("Failed to load repo config.");
6051 request = parse_options(argc, argv);
6052 if (request == REQ_NONE)
6055 /* Require a git repository unless when running in pager mode. */
6056 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6057 die("Not a git repository");
6059 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6062 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6063 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6064 if (opt_iconv == ICONV_NONE)
6065 die("Failed to initialize character set conversion");
6068 if (load_refs() == ERR)
6069 die("Failed to load refs.");
6071 foreach_view (view, i)
6072 view->cmd_env = getenv(view->cmd_env);
6076 while (view_driver(display[current_view], request)) {
6080 foreach_view (view, i)
6082 view = display[current_view];
6084 /* Refresh, accept single keystroke of input */
6085 key = wgetch(status_win);
6087 /* wgetch() with nodelay() enabled returns ERR when there's no
6094 request = get_keybinding(view->keymap, key);
6096 /* Some low-level request handling. This keeps access to
6097 * status_win restricted. */
6101 char *cmd = read_prompt(":");
6103 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
6104 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
6105 request = REQ_VIEW_DIFF;
6107 request = REQ_VIEW_PAGER;
6110 /* Always reload^Wrerun commands from the prompt. */
6111 open_view(view, request, OPEN_RELOAD);
6118 case REQ_SEARCH_BACK:
6120 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6121 char *search = read_prompt(prompt);
6124 string_ncopy(opt_search, search, strlen(search));
6129 case REQ_SCREEN_RESIZE:
6133 getmaxyx(stdscr, height, width);
6135 /* Resize the status view and let the view driver take
6136 * care of resizing the displayed views. */
6137 wresize(status_win, 1, width);
6138 mvwin(status_win, height - 1, 0);
6139 wrefresh(status_win);