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];
282 * NOTE: The following is a slightly modified copy of the git project's shell
283 * quoting routines found in the quote.c file.
285 * Help to copy the thing properly quoted for the shell safety. any single
286 * quote is replaced with '\'', any exclamation point is replaced with '\!',
287 * and the whole thing is enclosed in a
290 * original sq_quote result
291 * name ==> name ==> 'name'
292 * a b ==> a b ==> 'a b'
293 * a'b ==> a'\''b ==> 'a'\''b'
294 * a!b ==> a'\!'b ==> 'a'\!'b'
298 sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src)
302 #define BUFPUT(x) do { if (bufsize < SIZEOF_STR) buf[bufsize++] = (x); } while (0)
305 while ((c = *src++)) {
306 if (c == '\'' || c == '!') {
317 if (bufsize < SIZEOF_STR)
329 /* XXX: Keep the view request first and in sync with views[]. */ \
330 REQ_GROUP("View switching") \
331 REQ_(VIEW_MAIN, "Show main view"), \
332 REQ_(VIEW_DIFF, "Show diff view"), \
333 REQ_(VIEW_LOG, "Show log view"), \
334 REQ_(VIEW_TREE, "Show tree view"), \
335 REQ_(VIEW_BLOB, "Show blob view"), \
336 REQ_(VIEW_BLAME, "Show blame view"), \
337 REQ_(VIEW_HELP, "Show help page"), \
338 REQ_(VIEW_PAGER, "Show pager view"), \
339 REQ_(VIEW_STATUS, "Show status view"), \
340 REQ_(VIEW_STAGE, "Show stage view"), \
342 REQ_GROUP("View manipulation") \
343 REQ_(ENTER, "Enter current line and scroll"), \
344 REQ_(NEXT, "Move to next"), \
345 REQ_(PREVIOUS, "Move to previous"), \
346 REQ_(VIEW_NEXT, "Move focus to next view"), \
347 REQ_(REFRESH, "Reload and refresh"), \
348 REQ_(MAXIMIZE, "Maximize the current view"), \
349 REQ_(VIEW_CLOSE, "Close the current view"), \
350 REQ_(QUIT, "Close all views and quit"), \
352 REQ_GROUP("View specific requests") \
353 REQ_(STATUS_UPDATE, "Update file status"), \
354 REQ_(STATUS_REVERT, "Revert file changes"), \
355 REQ_(STATUS_MERGE, "Merge file using external tool"), \
356 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
357 REQ_(TREE_PARENT, "Switch to parent directory in tree view"), \
359 REQ_GROUP("Cursor navigation") \
360 REQ_(MOVE_UP, "Move cursor one line up"), \
361 REQ_(MOVE_DOWN, "Move cursor one line down"), \
362 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
363 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
364 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
365 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
367 REQ_GROUP("Scrolling") \
368 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
369 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
370 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
371 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
373 REQ_GROUP("Searching") \
374 REQ_(SEARCH, "Search the view"), \
375 REQ_(SEARCH_BACK, "Search backwards in the view"), \
376 REQ_(FIND_NEXT, "Find next search match"), \
377 REQ_(FIND_PREV, "Find previous search match"), \
379 REQ_GROUP("Option manipulation") \
380 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
381 REQ_(TOGGLE_DATE, "Toggle date display"), \
382 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
383 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
384 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
387 REQ_(PROMPT, "Bring up the prompt"), \
388 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
389 REQ_(SCREEN_RESIZE, "Resize the screen"), \
390 REQ_(SHOW_VERSION, "Show version information"), \
391 REQ_(STOP_LOADING, "Stop all loading views"), \
392 REQ_(EDIT, "Open in editor"), \
393 REQ_(NONE, "Do nothing")
396 /* User action requests. */
398 #define REQ_GROUP(help)
399 #define REQ_(req, help) REQ_##req
401 /* Offset all requests to avoid conflicts with ncurses getch values. */
402 REQ_OFFSET = KEY_MAX + 1,
409 struct request_info {
410 enum request request;
416 static struct request_info req_info[] = {
417 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
418 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
425 get_request(const char *name)
427 int namelen = strlen(name);
430 for (i = 0; i < ARRAY_SIZE(req_info); i++)
431 if (req_info[i].namelen == namelen &&
432 !string_enum_compare(req_info[i].name, name, namelen))
433 return req_info[i].request;
443 static const char usage[] =
444 "tig " TIG_VERSION " (" __DATE__ ")\n"
446 "Usage: tig [options] [revs] [--] [paths]\n"
447 " or: tig show [options] [revs] [--] [paths]\n"
448 " or: tig blame [rev] path\n"
450 " or: tig < [git command output]\n"
453 " -v, --version Show version and exit\n"
454 " -h, --help Show help message and exit";
456 /* Option and state variables. */
457 static bool opt_date = TRUE;
458 static bool opt_author = TRUE;
459 static bool opt_line_number = FALSE;
460 static bool opt_line_graphics = TRUE;
461 static bool opt_rev_graph = FALSE;
462 static bool opt_show_refs = TRUE;
463 static int opt_num_interval = NUMBER_INTERVAL;
464 static int opt_tab_size = TAB_SIZE;
465 static int opt_author_cols = AUTHOR_COLS-1;
466 static char opt_cmd[SIZEOF_STR] = "";
467 static char opt_path[SIZEOF_STR] = "";
468 static char opt_file[SIZEOF_STR] = "";
469 static char opt_ref[SIZEOF_REF] = "";
470 static char opt_head[SIZEOF_REF] = "";
471 static char opt_remote[SIZEOF_REF] = "";
472 static bool opt_no_head = TRUE;
473 static FILE *opt_pipe = NULL;
474 static char opt_encoding[20] = "UTF-8";
475 static bool opt_utf8 = TRUE;
476 static char opt_codeset[20] = "UTF-8";
477 static iconv_t opt_iconv = ICONV_NONE;
478 static char opt_search[SIZEOF_STR] = "";
479 static char opt_cdup[SIZEOF_STR] = "";
480 static char opt_git_dir[SIZEOF_STR] = "";
481 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
482 static char opt_editor[SIZEOF_STR] = "";
485 parse_options(int argc, const char *argv[])
487 enum request request = REQ_VIEW_MAIN;
489 const char *subcommand;
490 bool seen_dashdash = FALSE;
493 if (!isatty(STDIN_FILENO)) {
495 return REQ_VIEW_PAGER;
499 return REQ_VIEW_MAIN;
501 subcommand = argv[1];
502 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
503 if (!strcmp(subcommand, "-S"))
504 warn("`-S' has been deprecated; use `tig status' instead");
506 warn("ignoring arguments after `%s'", subcommand);
507 return REQ_VIEW_STATUS;
509 } else if (!strcmp(subcommand, "blame")) {
510 if (argc <= 2 || argc > 4)
511 die("invalid number of options to blame\n\n%s", usage);
515 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
519 string_ncopy(opt_file, argv[i], strlen(argv[i]));
520 return REQ_VIEW_BLAME;
522 } else if (!strcmp(subcommand, "show")) {
523 request = REQ_VIEW_DIFF;
525 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
526 request = subcommand[0] == 'l' ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
527 warn("`tig %s' has been deprecated", subcommand);
534 /* XXX: This is vulnerable to the user overriding
535 * options required for the main view parser. */
536 string_copy(opt_cmd, TIG_MAIN_BASE);
538 string_format(opt_cmd, "git %s", subcommand);
540 buf_size = strlen(opt_cmd);
542 for (i = 1 + !!subcommand; i < argc; i++) {
543 const char *opt = argv[i];
545 if (seen_dashdash || !strcmp(opt, "--")) {
546 seen_dashdash = TRUE;
548 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
549 printf("tig version %s\n", TIG_VERSION);
552 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
553 printf("%s\n", usage);
557 opt_cmd[buf_size++] = ' ';
558 buf_size = sq_quote(opt_cmd, buf_size, opt);
559 if (buf_size >= sizeof(opt_cmd))
560 die("command too long");
563 opt_cmd[buf_size] = 0;
570 * Line-oriented content detection.
574 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
575 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
576 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
577 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
578 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
579 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
580 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
581 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
582 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
583 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
584 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
585 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
586 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
587 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
588 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
589 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
590 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
591 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
592 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
593 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
594 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
595 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
596 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
597 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
598 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
599 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
600 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
601 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
602 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
603 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
604 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
605 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
606 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
607 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
608 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
609 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
610 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
611 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
612 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
613 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
614 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
615 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
616 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
617 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
618 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
619 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
620 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
621 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
622 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
623 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
624 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
625 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
626 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
627 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
630 #define LINE(type, line, fg, bg, attr) \
638 const char *name; /* Option name. */
639 int namelen; /* Size of option name. */
640 const char *line; /* The start of line to match. */
641 int linelen; /* Size of string to match. */
642 int fg, bg, attr; /* Color and text attributes for the lines. */
645 static struct line_info line_info[] = {
646 #define LINE(type, line, fg, bg, attr) \
647 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
652 static enum line_type
653 get_line_type(const char *line)
655 int linelen = strlen(line);
658 for (type = 0; type < ARRAY_SIZE(line_info); type++)
659 /* Case insensitive search matches Signed-off-by lines better. */
660 if (linelen >= line_info[type].linelen &&
661 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
668 get_line_attr(enum line_type type)
670 assert(type < ARRAY_SIZE(line_info));
671 return COLOR_PAIR(type) | line_info[type].attr;
674 static struct line_info *
675 get_line_info(const char *name)
677 size_t namelen = strlen(name);
680 for (type = 0; type < ARRAY_SIZE(line_info); type++)
681 if (namelen == line_info[type].namelen &&
682 !string_enum_compare(line_info[type].name, name, namelen))
683 return &line_info[type];
691 int default_bg = line_info[LINE_DEFAULT].bg;
692 int default_fg = line_info[LINE_DEFAULT].fg;
697 if (assume_default_colors(default_fg, default_bg) == ERR) {
698 default_bg = COLOR_BLACK;
699 default_fg = COLOR_WHITE;
702 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
703 struct line_info *info = &line_info[type];
704 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
705 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
707 init_pair(type, fg, bg);
715 unsigned int selected:1;
716 unsigned int dirty:1;
718 void *data; /* User data */
728 enum request request;
729 struct keybinding *next;
732 static struct keybinding default_keybindings[] = {
734 { 'm', REQ_VIEW_MAIN },
735 { 'd', REQ_VIEW_DIFF },
736 { 'l', REQ_VIEW_LOG },
737 { 't', REQ_VIEW_TREE },
738 { 'f', REQ_VIEW_BLOB },
739 { 'B', REQ_VIEW_BLAME },
740 { 'p', REQ_VIEW_PAGER },
741 { 'h', REQ_VIEW_HELP },
742 { 'S', REQ_VIEW_STATUS },
743 { 'c', REQ_VIEW_STAGE },
745 /* View manipulation */
746 { 'q', REQ_VIEW_CLOSE },
747 { KEY_TAB, REQ_VIEW_NEXT },
748 { KEY_RETURN, REQ_ENTER },
749 { KEY_UP, REQ_PREVIOUS },
750 { KEY_DOWN, REQ_NEXT },
751 { 'R', REQ_REFRESH },
752 { KEY_F(5), REQ_REFRESH },
753 { 'O', REQ_MAXIMIZE },
755 /* Cursor navigation */
756 { 'k', REQ_MOVE_UP },
757 { 'j', REQ_MOVE_DOWN },
758 { KEY_HOME, REQ_MOVE_FIRST_LINE },
759 { KEY_END, REQ_MOVE_LAST_LINE },
760 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
761 { ' ', REQ_MOVE_PAGE_DOWN },
762 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
763 { 'b', REQ_MOVE_PAGE_UP },
764 { '-', REQ_MOVE_PAGE_UP },
767 { KEY_IC, REQ_SCROLL_LINE_UP },
768 { KEY_DC, REQ_SCROLL_LINE_DOWN },
769 { 'w', REQ_SCROLL_PAGE_UP },
770 { 's', REQ_SCROLL_PAGE_DOWN },
774 { '?', REQ_SEARCH_BACK },
775 { 'n', REQ_FIND_NEXT },
776 { 'N', REQ_FIND_PREV },
780 { 'z', REQ_STOP_LOADING },
781 { 'v', REQ_SHOW_VERSION },
782 { 'r', REQ_SCREEN_REDRAW },
783 { '.', REQ_TOGGLE_LINENO },
784 { 'D', REQ_TOGGLE_DATE },
785 { 'A', REQ_TOGGLE_AUTHOR },
786 { 'g', REQ_TOGGLE_REV_GRAPH },
787 { 'F', REQ_TOGGLE_REFS },
789 { 'u', REQ_STATUS_UPDATE },
790 { '!', REQ_STATUS_REVERT },
791 { 'M', REQ_STATUS_MERGE },
792 { '@', REQ_STAGE_NEXT },
793 { ',', REQ_TREE_PARENT },
796 /* Using the ncurses SIGWINCH handler. */
797 { KEY_RESIZE, REQ_SCREEN_RESIZE },
800 #define KEYMAP_INFO \
814 #define KEYMAP_(name) KEYMAP_##name
819 static struct int_map keymap_table[] = {
820 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
825 #define set_keymap(map, name) \
826 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
828 static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)];
831 add_keybinding(enum keymap keymap, enum request request, int key)
833 struct keybinding *keybinding;
835 keybinding = calloc(1, sizeof(*keybinding));
837 die("Failed to allocate keybinding");
839 keybinding->alias = key;
840 keybinding->request = request;
841 keybinding->next = keybindings[keymap];
842 keybindings[keymap] = keybinding;
845 /* Looks for a key binding first in the given map, then in the generic map, and
846 * lastly in the default keybindings. */
848 get_keybinding(enum keymap keymap, int key)
850 struct keybinding *kbd;
853 for (kbd = keybindings[keymap]; kbd; kbd = kbd->next)
854 if (kbd->alias == key)
857 for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next)
858 if (kbd->alias == key)
861 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
862 if (default_keybindings[i].alias == key)
863 return default_keybindings[i].request;
865 return (enum request) key;
874 static struct key key_table[] = {
875 { "Enter", KEY_RETURN },
877 { "Backspace", KEY_BACKSPACE },
879 { "Escape", KEY_ESC },
880 { "Left", KEY_LEFT },
881 { "Right", KEY_RIGHT },
883 { "Down", KEY_DOWN },
884 { "Insert", KEY_IC },
885 { "Delete", KEY_DC },
887 { "Home", KEY_HOME },
889 { "PageUp", KEY_PPAGE },
890 { "PageDown", KEY_NPAGE },
900 { "F10", KEY_F(10) },
901 { "F11", KEY_F(11) },
902 { "F12", KEY_F(12) },
906 get_key_value(const char *name)
910 for (i = 0; i < ARRAY_SIZE(key_table); i++)
911 if (!strcasecmp(key_table[i].name, name))
912 return key_table[i].value;
914 if (strlen(name) == 1 && isprint(*name))
921 get_key_name(int key_value)
923 static char key_char[] = "'X'";
924 const char *seq = NULL;
927 for (key = 0; key < ARRAY_SIZE(key_table); key++)
928 if (key_table[key].value == key_value)
929 seq = key_table[key].name;
933 isprint(key_value)) {
934 key_char[1] = (char) key_value;
938 return seq ? seq : "(no key)";
942 get_key(enum request request)
944 static char buf[BUFSIZ];
951 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
952 struct keybinding *keybinding = &default_keybindings[i];
954 if (keybinding->request != request)
957 if (!string_format_from(buf, &pos, "%s%s", sep,
958 get_key_name(keybinding->alias)))
959 return "Too many keybindings!";
969 char cmd[SIZEOF_STR];
972 static struct run_request *run_request;
973 static size_t run_requests;
976 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
978 struct run_request *req;
979 char cmd[SIZEOF_STR];
982 for (bufpos = 0; argc > 0; argc--, argv++)
983 if (!string_format_from(cmd, &bufpos, "%s ", *argv))
986 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
991 req = &run_request[run_requests++];
992 string_copy(req->cmd, cmd);
993 req->keymap = keymap;
996 return REQ_NONE + run_requests;
999 static struct run_request *
1000 get_run_request(enum request request)
1002 if (request <= REQ_NONE)
1004 return &run_request[request - REQ_NONE - 1];
1008 add_builtin_run_requests(void)
1013 const char *argv[1];
1015 { KEYMAP_MAIN, 'C', { "git cherry-pick %(commit)" } },
1016 { KEYMAP_GENERIC, 'G', { "git gc" } },
1020 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1023 req = add_run_request(reqs[i].keymap, reqs[i].key, 1, reqs[i].argv);
1024 if (req != REQ_NONE)
1025 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1030 * User config file handling.
1033 static struct int_map color_map[] = {
1034 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1046 #define set_color(color, name) \
1047 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1049 static struct int_map attr_map[] = {
1050 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1057 ATTR_MAP(UNDERLINE),
1060 #define set_attribute(attr, name) \
1061 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1063 static int config_lineno;
1064 static bool config_errors;
1065 static const char *config_msg;
1067 /* Wants: object fgcolor bgcolor [attr] */
1069 option_color_command(int argc, const char *argv[])
1071 struct line_info *info;
1073 if (argc != 3 && argc != 4) {
1074 config_msg = "Wrong number of arguments given to color command";
1078 info = get_line_info(argv[0]);
1080 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1081 info = get_line_info("delimiter");
1083 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1084 info = get_line_info("date");
1087 config_msg = "Unknown color name";
1092 if (set_color(&info->fg, argv[1]) == ERR ||
1093 set_color(&info->bg, argv[2]) == ERR) {
1094 config_msg = "Unknown color";
1098 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1099 config_msg = "Unknown attribute";
1106 static bool parse_bool(const char *s)
1108 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1109 !strcmp(s, "yes")) ? TRUE : FALSE;
1113 parse_int(const char *s, int default_value, int min, int max)
1115 int value = atoi(s);
1117 return (value < min || value > max) ? default_value : value;
1120 /* Wants: name = value */
1122 option_set_command(int argc, const char *argv[])
1125 config_msg = "Wrong number of arguments given to set command";
1129 if (strcmp(argv[1], "=")) {
1130 config_msg = "No value assigned";
1134 if (!strcmp(argv[0], "show-author")) {
1135 opt_author = parse_bool(argv[2]);
1139 if (!strcmp(argv[0], "show-date")) {
1140 opt_date = parse_bool(argv[2]);
1144 if (!strcmp(argv[0], "show-rev-graph")) {
1145 opt_rev_graph = parse_bool(argv[2]);
1149 if (!strcmp(argv[0], "show-refs")) {
1150 opt_show_refs = parse_bool(argv[2]);
1154 if (!strcmp(argv[0], "show-line-numbers")) {
1155 opt_line_number = parse_bool(argv[2]);
1159 if (!strcmp(argv[0], "line-graphics")) {
1160 opt_line_graphics = parse_bool(argv[2]);
1164 if (!strcmp(argv[0], "line-number-interval")) {
1165 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1169 if (!strcmp(argv[0], "author-width")) {
1170 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1174 if (!strcmp(argv[0], "tab-size")) {
1175 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1179 if (!strcmp(argv[0], "commit-encoding")) {
1180 const char *arg = argv[2];
1181 int arglen = strlen(arg);
1186 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1187 config_msg = "Unmatched quotation";
1190 arg += 1; arglen -= 2;
1192 string_ncopy(opt_encoding, arg, strlen(arg));
1197 config_msg = "Unknown variable name";
1201 /* Wants: mode request key */
1203 option_bind_command(int argc, const char *argv[])
1205 enum request request;
1210 config_msg = "Wrong number of arguments given to bind command";
1214 if (set_keymap(&keymap, argv[0]) == ERR) {
1215 config_msg = "Unknown key map";
1219 key = get_key_value(argv[1]);
1221 config_msg = "Unknown key";
1225 request = get_request(argv[2]);
1226 if (request == REQ_NONE) {
1227 const char *obsolete[] = { "cherry-pick" };
1228 size_t namelen = strlen(argv[2]);
1231 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1232 if (namelen == strlen(obsolete[i]) &&
1233 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1234 config_msg = "Obsolete request name";
1239 if (request == REQ_NONE && *argv[2]++ == '!')
1240 request = add_run_request(keymap, key, argc - 2, argv + 2);
1241 if (request == REQ_NONE) {
1242 config_msg = "Unknown request name";
1246 add_keybinding(keymap, request, key);
1252 set_option(const char *opt, char *value)
1254 const char *argv[SIZEOF_ARG];
1259 while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) {
1260 argv[argc++] = value;
1263 /* Nothing more to tokenize or last available token. */
1264 if (!*value || argc >= ARRAY_SIZE(argv))
1268 while (isspace(*value))
1272 if (!strcmp(opt, "color"))
1273 return option_color_command(argc, argv);
1275 if (!strcmp(opt, "set"))
1276 return option_set_command(argc, argv);
1278 if (!strcmp(opt, "bind"))
1279 return option_bind_command(argc, argv);
1281 config_msg = "Unknown option command";
1286 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1291 config_msg = "Internal error";
1293 /* Check for comment markers, since read_properties() will
1294 * only ensure opt and value are split at first " \t". */
1295 optlen = strcspn(opt, "#");
1299 if (opt[optlen] != 0) {
1300 config_msg = "No option value";
1304 /* Look for comment endings in the value. */
1305 size_t len = strcspn(value, "#");
1307 if (len < valuelen) {
1309 value[valuelen] = 0;
1312 status = set_option(opt, value);
1315 if (status == ERR) {
1316 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1317 config_lineno, (int) optlen, opt, config_msg);
1318 config_errors = TRUE;
1321 /* Always keep going if errors are encountered. */
1326 load_option_file(const char *path)
1330 /* It's ok that the file doesn't exist. */
1331 file = fopen(path, "r");
1336 config_errors = FALSE;
1338 if (read_properties(file, " \t", read_option) == ERR ||
1339 config_errors == TRUE)
1340 fprintf(stderr, "Errors while loading %s.\n", path);
1346 const char *home = getenv("HOME");
1347 const char *tigrc_user = getenv("TIGRC_USER");
1348 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1349 char buf[SIZEOF_STR];
1351 add_builtin_run_requests();
1353 if (!tigrc_system) {
1354 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1358 load_option_file(tigrc_system);
1361 if (!home || !string_format(buf, "%s/.tigrc", home))
1365 load_option_file(tigrc_user);
1378 /* The display array of active views and the index of the current view. */
1379 static struct view *display[2];
1380 static unsigned int current_view;
1382 /* Reading from the prompt? */
1383 static bool input_mode = FALSE;
1385 #define foreach_displayed_view(view, i) \
1386 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1388 #define displayed_views() (display[1] != NULL ? 2 : 1)
1390 /* Current head and commit ID */
1391 static char ref_blob[SIZEOF_REF] = "";
1392 static char ref_commit[SIZEOF_REF] = "HEAD";
1393 static char ref_head[SIZEOF_REF] = "HEAD";
1396 const char *name; /* View name */
1397 const char *cmd_fmt; /* Default command line format */
1398 const char *cmd_env; /* Command line set via environment */
1399 const char *id; /* Points to either of ref_{head,commit,blob} */
1401 struct view_ops *ops; /* View operations */
1403 enum keymap keymap; /* What keymap does this view have */
1404 bool git_dir; /* Whether the view requires a git directory. */
1406 char cmd[SIZEOF_STR]; /* Command buffer */
1407 char ref[SIZEOF_REF]; /* Hovered commit reference */
1408 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1410 int height, width; /* The width and height of the main window */
1411 WINDOW *win; /* The main window */
1412 WINDOW *title; /* The title window living below the main window */
1415 unsigned long offset; /* Offset of the window top */
1416 unsigned long lineno; /* Current line number */
1419 char grep[SIZEOF_STR]; /* Search string */
1420 regex_t *regex; /* Pre-compiled regex */
1422 /* If non-NULL, points to the view that opened this view. If this view
1423 * is closed tig will switch back to the parent view. */
1424 struct view *parent;
1427 size_t lines; /* Total number of lines */
1428 struct line *line; /* Line index */
1429 size_t line_alloc; /* Total number of allocated lines */
1430 size_t line_size; /* Total number of used lines */
1431 unsigned int digits; /* Number of digits in the lines member. */
1434 struct line *curline; /* Line currently being drawn. */
1435 enum line_type curtype; /* Attribute currently used for drawing. */
1436 unsigned long col; /* Column when drawing. */
1444 /* What type of content being displayed. Used in the title bar. */
1446 /* Open and reads in all view content. */
1447 bool (*open)(struct view *view);
1448 /* Read one line; updates view->line. */
1449 bool (*read)(struct view *view, char *data);
1450 /* Draw one line; @lineno must be < view->height. */
1451 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1452 /* Depending on view handle a special requests. */
1453 enum request (*request)(struct view *view, enum request request, struct line *line);
1454 /* Search for regex in a line. */
1455 bool (*grep)(struct view *view, struct line *line);
1457 void (*select)(struct view *view, struct line *line);
1460 static struct view_ops blame_ops;
1461 static struct view_ops blob_ops;
1462 static struct view_ops help_ops;
1463 static struct view_ops log_ops;
1464 static struct view_ops main_ops;
1465 static struct view_ops pager_ops;
1466 static struct view_ops stage_ops;
1467 static struct view_ops status_ops;
1468 static struct view_ops tree_ops;
1470 #define VIEW_STR(name, cmd, env, ref, ops, map, git) \
1471 { name, cmd, #env, ref, ops, map, git }
1473 #define VIEW_(id, name, ops, git, ref) \
1474 VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1477 static struct view views[] = {
1478 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1479 VIEW_(DIFF, "diff", &pager_ops, TRUE, ref_commit),
1480 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1481 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1482 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1483 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1484 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1485 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1486 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1487 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1490 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1491 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1493 #define foreach_view(view, i) \
1494 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1496 #define view_is_displayed(view) \
1497 (view == display[0] || view == display[1])
1504 static int line_graphics[] = {
1505 /* LINE_GRAPHIC_VLINE: */ '|'
1509 set_view_attr(struct view *view, enum line_type type)
1511 if (!view->curline->selected && view->curtype != type) {
1512 wattrset(view->win, get_line_attr(type));
1513 wchgat(view->win, -1, 0, type, NULL);
1514 view->curtype = type;
1519 draw_chars(struct view *view, enum line_type type, const char *string,
1520 int max_len, bool use_tilde)
1524 int trimmed = FALSE;
1530 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1532 col = len = strlen(string);
1533 if (len > max_len) {
1537 col = len = max_len;
1542 set_view_attr(view, type);
1543 waddnstr(view->win, string, len);
1544 if (trimmed && use_tilde) {
1545 set_view_attr(view, LINE_DELIMITER);
1546 waddch(view->win, '~');
1554 draw_space(struct view *view, enum line_type type, int max, int spaces)
1556 static char space[] = " ";
1559 spaces = MIN(max, spaces);
1561 while (spaces > 0) {
1562 int len = MIN(spaces, sizeof(space) - 1);
1564 col += draw_chars(view, type, space, spaces, FALSE);
1572 draw_lineno(struct view *view, unsigned int lineno)
1575 int digits3 = view->digits < 3 ? 3 : view->digits;
1576 int max_number = MIN(digits3, STRING_SIZE(number));
1577 int max = view->width - view->col;
1580 if (max < max_number)
1583 lineno += view->offset + 1;
1584 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1585 static char fmt[] = "%1ld";
1587 if (view->digits <= 9)
1588 fmt[1] = '0' + digits3;
1590 if (!string_format(number, fmt, lineno))
1592 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1594 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1598 set_view_attr(view, LINE_DEFAULT);
1599 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1604 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1607 return view->width - view->col <= 0;
1611 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1613 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1614 return view->width - view->col <= 0;
1618 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1620 int max = view->width - view->col;
1626 set_view_attr(view, type);
1627 /* Using waddch() instead of waddnstr() ensures that
1628 * they'll be rendered correctly for the cursor line. */
1629 for (i = 0; i < size; i++)
1630 waddch(view->win, graphic[i]);
1634 waddch(view->win, ' ');
1638 return view->width - view->col <= 0;
1642 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1644 int max = MIN(view->width - view->col, len);
1648 col = draw_chars(view, type, text, max - 1, trim);
1650 col = draw_space(view, type, max - 1, max - 1);
1652 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1653 return view->width - view->col <= 0;
1657 draw_date(struct view *view, struct tm *time)
1659 char buf[DATE_COLS];
1664 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1665 date = timelen ? buf : NULL;
1667 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1671 draw_view_line(struct view *view, unsigned int lineno)
1674 bool selected = (view->offset + lineno == view->lineno);
1677 assert(view_is_displayed(view));
1679 if (view->offset + lineno >= view->lines)
1682 line = &view->line[view->offset + lineno];
1684 wmove(view->win, lineno, 0);
1686 view->curline = line;
1687 view->curtype = LINE_NONE;
1688 line->selected = FALSE;
1691 set_view_attr(view, LINE_CURSOR);
1692 line->selected = TRUE;
1693 view->ops->select(view, line);
1694 } else if (line->selected) {
1695 wclrtoeol(view->win);
1698 scrollok(view->win, FALSE);
1699 draw_ok = view->ops->draw(view, line, lineno);
1700 scrollok(view->win, TRUE);
1706 redraw_view_dirty(struct view *view)
1711 for (lineno = 0; lineno < view->height; lineno++) {
1712 struct line *line = &view->line[view->offset + lineno];
1718 if (!draw_view_line(view, lineno))
1724 redrawwin(view->win);
1726 wnoutrefresh(view->win);
1728 wrefresh(view->win);
1732 redraw_view_from(struct view *view, int lineno)
1734 assert(0 <= lineno && lineno < view->height);
1736 for (; lineno < view->height; lineno++) {
1737 if (!draw_view_line(view, lineno))
1741 redrawwin(view->win);
1743 wnoutrefresh(view->win);
1745 wrefresh(view->win);
1749 redraw_view(struct view *view)
1752 redraw_view_from(view, 0);
1757 update_view_title(struct view *view)
1759 char buf[SIZEOF_STR];
1760 char state[SIZEOF_STR];
1761 size_t bufpos = 0, statelen = 0;
1763 assert(view_is_displayed(view));
1765 if (view != VIEW(REQ_VIEW_STATUS) && (view->lines || view->pipe)) {
1766 unsigned int view_lines = view->offset + view->height;
1767 unsigned int lines = view->lines
1768 ? MIN(view_lines, view->lines) * 100 / view->lines
1771 string_format_from(state, &statelen, "- %s %d of %d (%d%%)",
1778 time_t secs = time(NULL) - view->start_time;
1780 /* Three git seconds are a long time ... */
1782 string_format_from(state, &statelen, " %lds", secs);
1786 string_format_from(buf, &bufpos, "[%s]", view->name);
1787 if (*view->ref && bufpos < view->width) {
1788 size_t refsize = strlen(view->ref);
1789 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
1791 if (minsize < view->width)
1792 refsize = view->width - minsize + 7;
1793 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
1796 if (statelen && bufpos < view->width) {
1797 string_format_from(buf, &bufpos, " %s", state);
1800 if (view == display[current_view])
1801 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
1803 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
1805 mvwaddnstr(view->title, 0, 0, buf, bufpos);
1806 wclrtoeol(view->title);
1807 wmove(view->title, 0, view->width - 1);
1810 wnoutrefresh(view->title);
1812 wrefresh(view->title);
1816 resize_display(void)
1819 struct view *base = display[0];
1820 struct view *view = display[1] ? display[1] : display[0];
1822 /* Setup window dimensions */
1824 getmaxyx(stdscr, base->height, base->width);
1826 /* Make room for the status window. */
1830 /* Horizontal split. */
1831 view->width = base->width;
1832 view->height = SCALE_SPLIT_VIEW(base->height);
1833 base->height -= view->height;
1835 /* Make room for the title bar. */
1839 /* Make room for the title bar. */
1844 foreach_displayed_view (view, i) {
1846 view->win = newwin(view->height, 0, offset, 0);
1848 die("Failed to create %s view", view->name);
1850 scrollok(view->win, TRUE);
1852 view->title = newwin(1, 0, offset + view->height, 0);
1854 die("Failed to create title window");
1857 wresize(view->win, view->height, view->width);
1858 mvwin(view->win, offset, 0);
1859 mvwin(view->title, offset + view->height, 0);
1862 offset += view->height + 1;
1867 redraw_display(void)
1872 foreach_displayed_view (view, i) {
1874 update_view_title(view);
1879 update_display_cursor(struct view *view)
1881 /* Move the cursor to the right-most column of the cursor line.
1883 * XXX: This could turn out to be a bit expensive, but it ensures that
1884 * the cursor does not jump around. */
1886 wmove(view->win, view->lineno - view->offset, view->width - 1);
1887 wrefresh(view->win);
1895 /* Scrolling backend */
1897 do_scroll_view(struct view *view, int lines)
1899 bool redraw_current_line = FALSE;
1901 /* The rendering expects the new offset. */
1902 view->offset += lines;
1904 assert(0 <= view->offset && view->offset < view->lines);
1907 /* Move current line into the view. */
1908 if (view->lineno < view->offset) {
1909 view->lineno = view->offset;
1910 redraw_current_line = TRUE;
1911 } else if (view->lineno >= view->offset + view->height) {
1912 view->lineno = view->offset + view->height - 1;
1913 redraw_current_line = TRUE;
1916 assert(view->offset <= view->lineno && view->lineno < view->lines);
1918 /* Redraw the whole screen if scrolling is pointless. */
1919 if (view->height < ABS(lines)) {
1923 int line = lines > 0 ? view->height - lines : 0;
1924 int end = line + ABS(lines);
1926 wscrl(view->win, lines);
1928 for (; line < end; line++) {
1929 if (!draw_view_line(view, line))
1933 if (redraw_current_line)
1934 draw_view_line(view, view->lineno - view->offset);
1937 redrawwin(view->win);
1938 wrefresh(view->win);
1942 /* Scroll frontend */
1944 scroll_view(struct view *view, enum request request)
1948 assert(view_is_displayed(view));
1951 case REQ_SCROLL_PAGE_DOWN:
1952 lines = view->height;
1953 case REQ_SCROLL_LINE_DOWN:
1954 if (view->offset + lines > view->lines)
1955 lines = view->lines - view->offset;
1957 if (lines == 0 || view->offset + view->height >= view->lines) {
1958 report("Cannot scroll beyond the last line");
1963 case REQ_SCROLL_PAGE_UP:
1964 lines = view->height;
1965 case REQ_SCROLL_LINE_UP:
1966 if (lines > view->offset)
1967 lines = view->offset;
1970 report("Cannot scroll beyond the first line");
1978 die("request %d not handled in switch", request);
1981 do_scroll_view(view, lines);
1986 move_view(struct view *view, enum request request)
1988 int scroll_steps = 0;
1992 case REQ_MOVE_FIRST_LINE:
1993 steps = -view->lineno;
1996 case REQ_MOVE_LAST_LINE:
1997 steps = view->lines - view->lineno - 1;
2000 case REQ_MOVE_PAGE_UP:
2001 steps = view->height > view->lineno
2002 ? -view->lineno : -view->height;
2005 case REQ_MOVE_PAGE_DOWN:
2006 steps = view->lineno + view->height >= view->lines
2007 ? view->lines - view->lineno - 1 : view->height;
2019 die("request %d not handled in switch", request);
2022 if (steps <= 0 && view->lineno == 0) {
2023 report("Cannot move beyond the first line");
2026 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2027 report("Cannot move beyond the last line");
2031 /* Move the current line */
2032 view->lineno += steps;
2033 assert(0 <= view->lineno && view->lineno < view->lines);
2035 /* Check whether the view needs to be scrolled */
2036 if (view->lineno < view->offset ||
2037 view->lineno >= view->offset + view->height) {
2038 scroll_steps = steps;
2039 if (steps < 0 && -steps > view->offset) {
2040 scroll_steps = -view->offset;
2042 } else if (steps > 0) {
2043 if (view->lineno == view->lines - 1 &&
2044 view->lines > view->height) {
2045 scroll_steps = view->lines - view->offset - 1;
2046 if (scroll_steps >= view->height)
2047 scroll_steps -= view->height - 1;
2052 if (!view_is_displayed(view)) {
2053 view->offset += scroll_steps;
2054 assert(0 <= view->offset && view->offset < view->lines);
2055 view->ops->select(view, &view->line[view->lineno]);
2059 /* Repaint the old "current" line if we be scrolling */
2060 if (ABS(steps) < view->height)
2061 draw_view_line(view, view->lineno - steps - view->offset);
2064 do_scroll_view(view, scroll_steps);
2068 /* Draw the current line */
2069 draw_view_line(view, view->lineno - view->offset);
2071 redrawwin(view->win);
2072 wrefresh(view->win);
2081 static void search_view(struct view *view, enum request request);
2084 find_next_line(struct view *view, unsigned long lineno, struct line *line)
2086 assert(view_is_displayed(view));
2088 if (!view->ops->grep(view, line))
2091 if (lineno - view->offset >= view->height) {
2092 view->offset = lineno;
2093 view->lineno = lineno;
2097 unsigned long old_lineno = view->lineno - view->offset;
2099 view->lineno = lineno;
2100 draw_view_line(view, old_lineno);
2102 draw_view_line(view, view->lineno - view->offset);
2103 redrawwin(view->win);
2104 wrefresh(view->win);
2107 report("Line %ld matches '%s'", lineno + 1, view->grep);
2112 find_next(struct view *view, enum request request)
2114 unsigned long lineno = view->lineno;
2119 report("No previous search");
2121 search_view(view, request);
2131 case REQ_SEARCH_BACK:
2140 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2141 lineno += direction;
2143 /* Note, lineno is unsigned long so will wrap around in which case it
2144 * will become bigger than view->lines. */
2145 for (; lineno < view->lines; lineno += direction) {
2146 struct line *line = &view->line[lineno];
2148 if (find_next_line(view, lineno, line))
2152 report("No match found for '%s'", view->grep);
2156 search_view(struct view *view, enum request request)
2161 regfree(view->regex);
2164 view->regex = calloc(1, sizeof(*view->regex));
2169 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2170 if (regex_err != 0) {
2171 char buf[SIZEOF_STR] = "unknown error";
2173 regerror(regex_err, view->regex, buf, sizeof(buf));
2174 report("Search failed: %s", buf);
2178 string_copy(view->grep, opt_search);
2180 find_next(view, request);
2184 * Incremental updating
2188 reset_view(struct view *view)
2192 for (i = 0; i < view->lines; i++)
2193 free(view->line[i].data);
2200 view->line_size = 0;
2201 view->line_alloc = 0;
2206 end_update(struct view *view, bool force)
2210 while (!view->ops->read(view, NULL))
2213 set_nonblocking_input(FALSE);
2214 if (view->pipe == stdin)
2222 begin_update(struct view *view, bool refresh)
2225 string_copy(view->cmd, opt_cmd);
2227 /* When running random commands, initially show the
2228 * command in the title. However, it maybe later be
2229 * overwritten if a commit line is selected. */
2230 if (view == VIEW(REQ_VIEW_PAGER))
2231 string_copy(view->ref, view->cmd);
2235 } else if (view == VIEW(REQ_VIEW_TREE)) {
2236 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2237 char path[SIZEOF_STR];
2239 if (strcmp(view->vid, view->id))
2240 opt_path[0] = path[0] = 0;
2241 else if (sq_quote(path, 0, opt_path) >= sizeof(path))
2244 if (!string_format(view->cmd, format, view->id, path))
2247 } else if (!refresh) {
2248 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2249 const char *id = view->id;
2251 if (!string_format(view->cmd, format, id, id, id, id, id))
2254 /* Put the current ref_* value to the view title ref
2255 * member. This is needed by the blob view. Most other
2256 * views sets it automatically after loading because the
2257 * first line is a commit line. */
2258 string_copy_rev(view->ref, view->id);
2261 /* Special case for the pager view. */
2263 view->pipe = opt_pipe;
2266 view->pipe = popen(view->cmd, "r");
2272 set_nonblocking_input(TRUE);
2274 string_copy_rev(view->vid, view->id);
2276 view->start_time = time(NULL);
2281 #define ITEM_CHUNK_SIZE 256
2283 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2285 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2286 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2288 if (mem == NULL || num_chunks != num_chunks_new) {
2289 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2290 mem = realloc(mem, *size * item_size);
2296 static struct line *
2297 realloc_lines(struct view *view, size_t line_size)
2299 size_t alloc = view->line_alloc;
2300 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2301 sizeof(*view->line));
2307 view->line_alloc = alloc;
2308 view->line_size = line_size;
2313 update_view(struct view *view)
2315 char in_buffer[BUFSIZ];
2316 char out_buffer[BUFSIZ * 2];
2318 /* The number of lines to read. If too low it will cause too much
2319 * redrawing (and possible flickering), if too high responsiveness
2321 unsigned long lines = view->height;
2322 int redraw_from = -1;
2327 /* Only redraw if lines are visible. */
2328 if (view->offset + view->height >= view->lines)
2329 redraw_from = view->lines - view->offset;
2331 /* FIXME: This is probably not perfect for backgrounded views. */
2332 if (!realloc_lines(view, view->lines + lines))
2335 while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) {
2336 size_t linelen = strlen(line);
2339 line[linelen - 1] = 0;
2341 if (opt_iconv != ICONV_NONE) {
2342 ICONV_CONST char *inbuf = line;
2343 size_t inlen = linelen;
2345 char *outbuf = out_buffer;
2346 size_t outlen = sizeof(out_buffer);
2350 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2351 if (ret != (size_t) -1) {
2353 linelen = strlen(out_buffer);
2357 if (!view->ops->read(view, line))
2367 lines = view->lines;
2368 for (digits = 0; lines; digits++)
2371 /* Keep the displayed view in sync with line number scaling. */
2372 if (digits != view->digits) {
2373 view->digits = digits;
2378 if (!view_is_displayed(view))
2381 if (view == VIEW(REQ_VIEW_TREE)) {
2382 /* Clear the view and redraw everything since the tree sorting
2383 * might have rearranged things. */
2386 } else if (redraw_from >= 0) {
2387 /* If this is an incremental update, redraw the previous line
2388 * since for commits some members could have changed when
2389 * loading the main view. */
2390 if (redraw_from > 0)
2393 /* Since revision graph visualization requires knowledge
2394 * about the parent commit, it causes a further one-off
2395 * needed to be redrawn for incremental updates. */
2396 if (redraw_from > 0 && opt_rev_graph)
2399 /* Incrementally draw avoids flickering. */
2400 redraw_view_from(view, redraw_from);
2403 if (view == VIEW(REQ_VIEW_BLAME))
2404 redraw_view_dirty(view);
2406 /* Update the title _after_ the redraw so that if the redraw picks up a
2407 * commit reference in view->ref it'll be available here. */
2408 update_view_title(view);
2411 if (ferror(view->pipe) && errno != 0) {
2412 report("Failed to read: %s", strerror(errno));
2413 end_update(view, TRUE);
2415 } else if (feof(view->pipe)) {
2417 end_update(view, FALSE);
2423 report("Allocation failure");
2424 end_update(view, TRUE);
2428 static struct line *
2429 add_line_data(struct view *view, void *data, enum line_type type)
2431 struct line *line = &view->line[view->lines++];
2433 memset(line, 0, sizeof(*line));
2440 static struct line *
2441 add_line_text(struct view *view, const char *text, enum line_type type)
2443 char *data = text ? strdup(text) : NULL;
2445 return data ? add_line_data(view, data, type) : NULL;
2454 OPEN_DEFAULT = 0, /* Use default view switching. */
2455 OPEN_SPLIT = 1, /* Split current view. */
2456 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2457 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2458 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2459 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2463 open_view(struct view *prev, enum request request, enum open_flags flags)
2465 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2466 bool split = !!(flags & OPEN_SPLIT);
2467 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH));
2468 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2469 struct view *view = VIEW(request);
2470 int nviews = displayed_views();
2471 struct view *base_view = display[0];
2473 if (view == prev && nviews == 1 && !reload) {
2474 report("Already in %s view", view->name);
2478 if (view->git_dir && !opt_git_dir[0]) {
2479 report("The %s view is disabled in pager view", view->name);
2487 } else if (!nomaximize) {
2488 /* Maximize the current view. */
2489 memset(display, 0, sizeof(display));
2491 display[current_view] = view;
2494 /* Resize the view when switching between split- and full-screen,
2495 * or when switching between two different full-screen views. */
2496 if (nviews != displayed_views() ||
2497 (nviews == 1 && base_view != display[0]))
2501 end_update(view, TRUE);
2503 if (view->ops->open) {
2504 if (!view->ops->open(view)) {
2505 report("Failed to load %s view", view->name);
2509 } else if ((reload || strcmp(view->vid, view->id)) &&
2510 !begin_update(view, flags & OPEN_REFRESH)) {
2511 report("Failed to load %s view", view->name);
2515 if (split && prev->lineno - prev->offset >= prev->height) {
2516 /* Take the title line into account. */
2517 int lines = prev->lineno - prev->offset - prev->height + 1;
2519 /* Scroll the view that was split if the current line is
2520 * outside the new limited view. */
2521 do_scroll_view(prev, lines);
2524 if (prev && view != prev) {
2525 if (split && !backgrounded) {
2526 /* "Blur" the previous view. */
2527 update_view_title(prev);
2530 view->parent = prev;
2533 if (view->pipe && view->lines == 0) {
2534 /* Clear the old view and let the incremental updating refill
2538 } else if (view_is_displayed(view)) {
2543 /* If the view is backgrounded the above calls to report()
2544 * won't redraw the view title. */
2546 update_view_title(view);
2550 run_confirm(const char *cmd, const char *prompt)
2552 bool confirmation = prompt_yesno(prompt);
2557 return confirmation;
2561 open_external_viewer(const char *cmd)
2563 def_prog_mode(); /* save current tty modes */
2564 endwin(); /* restore original tty modes */
2566 fprintf(stderr, "Press Enter to continue");
2573 open_mergetool(const char *file)
2575 char cmd[SIZEOF_STR];
2576 char file_sq[SIZEOF_STR];
2578 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2579 string_format(cmd, "git mergetool %s", file_sq)) {
2580 open_external_viewer(cmd);
2585 open_editor(bool from_root, const char *file)
2587 char cmd[SIZEOF_STR];
2588 char file_sq[SIZEOF_STR];
2590 char *prefix = from_root ? opt_cdup : "";
2592 editor = getenv("GIT_EDITOR");
2593 if (!editor && *opt_editor)
2594 editor = opt_editor;
2596 editor = getenv("VISUAL");
2598 editor = getenv("EDITOR");
2602 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2603 string_format(cmd, "%s %s%s", editor, prefix, file_sq)) {
2604 open_external_viewer(cmd);
2609 open_run_request(enum request request)
2611 struct run_request *req = get_run_request(request);
2612 char buf[SIZEOF_STR * 2];
2617 report("Unknown run request");
2625 char *next = strstr(cmd, "%(");
2626 int len = next - cmd;
2633 } else if (!strncmp(next, "%(head)", 7)) {
2636 } else if (!strncmp(next, "%(commit)", 9)) {
2639 } else if (!strncmp(next, "%(blob)", 7)) {
2643 report("Unknown replacement in run request: `%s`", req->cmd);
2647 if (!string_format_from(buf, &bufpos, "%.*s%s", len, cmd, value))
2651 next = strchr(next, ')') + 1;
2655 open_external_viewer(buf);
2659 * User request switch noodle
2663 view_driver(struct view *view, enum request request)
2667 if (request == REQ_NONE) {
2672 if (request > REQ_NONE) {
2673 open_run_request(request);
2674 /* FIXME: When all views can refresh always do this. */
2675 if (view == VIEW(REQ_VIEW_STATUS) ||
2676 view == VIEW(REQ_VIEW_MAIN) ||
2677 view == VIEW(REQ_VIEW_LOG) ||
2678 view == VIEW(REQ_VIEW_STAGE))
2679 request = REQ_REFRESH;
2684 if (view && view->lines) {
2685 request = view->ops->request(view, request, &view->line[view->lineno]);
2686 if (request == REQ_NONE)
2693 case REQ_MOVE_PAGE_UP:
2694 case REQ_MOVE_PAGE_DOWN:
2695 case REQ_MOVE_FIRST_LINE:
2696 case REQ_MOVE_LAST_LINE:
2697 move_view(view, request);
2700 case REQ_SCROLL_LINE_DOWN:
2701 case REQ_SCROLL_LINE_UP:
2702 case REQ_SCROLL_PAGE_DOWN:
2703 case REQ_SCROLL_PAGE_UP:
2704 scroll_view(view, request);
2707 case REQ_VIEW_BLAME:
2709 report("No file chosen, press %s to open tree view",
2710 get_key(REQ_VIEW_TREE));
2713 open_view(view, request, OPEN_DEFAULT);
2718 report("No file chosen, press %s to open tree view",
2719 get_key(REQ_VIEW_TREE));
2722 open_view(view, request, OPEN_DEFAULT);
2725 case REQ_VIEW_PAGER:
2726 if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2727 report("No pager content, press %s to run command from prompt",
2728 get_key(REQ_PROMPT));
2731 open_view(view, request, OPEN_DEFAULT);
2734 case REQ_VIEW_STAGE:
2735 if (!VIEW(REQ_VIEW_STAGE)->lines) {
2736 report("No stage content, press %s to open the status view and choose file",
2737 get_key(REQ_VIEW_STATUS));
2740 open_view(view, request, OPEN_DEFAULT);
2743 case REQ_VIEW_STATUS:
2744 if (opt_is_inside_work_tree == FALSE) {
2745 report("The status view requires a working tree");
2748 open_view(view, request, OPEN_DEFAULT);
2756 open_view(view, request, OPEN_DEFAULT);
2761 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2763 if ((view == VIEW(REQ_VIEW_DIFF) &&
2764 view->parent == VIEW(REQ_VIEW_MAIN)) ||
2765 (view == VIEW(REQ_VIEW_DIFF) &&
2766 view->parent == VIEW(REQ_VIEW_BLAME)) ||
2767 (view == VIEW(REQ_VIEW_STAGE) &&
2768 view->parent == VIEW(REQ_VIEW_STATUS)) ||
2769 (view == VIEW(REQ_VIEW_BLOB) &&
2770 view->parent == VIEW(REQ_VIEW_TREE))) {
2773 view = view->parent;
2774 line = view->lineno;
2775 move_view(view, request);
2776 if (view_is_displayed(view))
2777 update_view_title(view);
2778 if (line != view->lineno)
2779 view->ops->request(view, REQ_ENTER,
2780 &view->line[view->lineno]);
2783 move_view(view, request);
2789 int nviews = displayed_views();
2790 int next_view = (current_view + 1) % nviews;
2792 if (next_view == current_view) {
2793 report("Only one view is displayed");
2797 current_view = next_view;
2798 /* Blur out the title of the previous view. */
2799 update_view_title(view);
2804 report("Refreshing is not yet supported for the %s view", view->name);
2808 if (displayed_views() == 2)
2809 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
2812 case REQ_TOGGLE_LINENO:
2813 opt_line_number = !opt_line_number;
2817 case REQ_TOGGLE_DATE:
2818 opt_date = !opt_date;
2822 case REQ_TOGGLE_AUTHOR:
2823 opt_author = !opt_author;
2827 case REQ_TOGGLE_REV_GRAPH:
2828 opt_rev_graph = !opt_rev_graph;
2832 case REQ_TOGGLE_REFS:
2833 opt_show_refs = !opt_show_refs;
2838 case REQ_SEARCH_BACK:
2839 search_view(view, request);
2844 find_next(view, request);
2847 case REQ_STOP_LOADING:
2848 for (i = 0; i < ARRAY_SIZE(views); i++) {
2851 report("Stopped loading the %s view", view->name),
2852 end_update(view, TRUE);
2856 case REQ_SHOW_VERSION:
2857 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
2860 case REQ_SCREEN_RESIZE:
2863 case REQ_SCREEN_REDRAW:
2868 report("Nothing to edit");
2872 report("Nothing to enter");
2875 case REQ_VIEW_CLOSE:
2876 /* XXX: Mark closed views by letting view->parent point to the
2877 * view itself. Parents to closed view should never be
2880 view->parent->parent != view->parent) {
2881 memset(display, 0, sizeof(display));
2883 display[current_view] = view->parent;
2884 view->parent = view;
2895 report("Unknown key, press 'h' for help");
2908 pager_draw(struct view *view, struct line *line, unsigned int lineno)
2910 char *text = line->data;
2912 if (opt_line_number && draw_lineno(view, lineno))
2915 draw_text(view, line->type, text, TRUE);
2920 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
2922 char refbuf[SIZEOF_STR];
2926 if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id))
2929 pipe = popen(refbuf, "r");
2933 if ((ref = fgets(refbuf, sizeof(refbuf), pipe)))
2934 ref = chomp_string(ref);
2940 /* This is the only fatal call, since it can "corrupt" the buffer. */
2941 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
2948 add_pager_refs(struct view *view, struct line *line)
2950 char buf[SIZEOF_STR];
2951 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
2953 size_t bufpos = 0, refpos = 0;
2954 const char *sep = "Refs: ";
2955 bool is_tag = FALSE;
2957 assert(line->type == LINE_COMMIT);
2959 refs = get_refs(commit_id);
2961 if (view == VIEW(REQ_VIEW_DIFF))
2962 goto try_add_describe_ref;
2967 struct ref *ref = refs[refpos];
2968 const char *fmt = ref->tag ? "%s[%s]" :
2969 ref->remote ? "%s<%s>" : "%s%s";
2971 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
2976 } while (refs[refpos++]->next);
2978 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
2979 try_add_describe_ref:
2980 /* Add <tag>-g<commit_id> "fake" reference. */
2981 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
2988 if (!realloc_lines(view, view->line_size + 1))
2991 add_line_text(view, buf, LINE_PP_REFS);
2995 pager_read(struct view *view, char *data)
3002 line = add_line_text(view, data, get_line_type(data));
3006 if (line->type == LINE_COMMIT &&
3007 (view == VIEW(REQ_VIEW_DIFF) ||
3008 view == VIEW(REQ_VIEW_LOG)))
3009 add_pager_refs(view, line);
3015 pager_request(struct view *view, enum request request, struct line *line)
3019 if (request != REQ_ENTER)
3022 if (line->type == LINE_COMMIT &&
3023 (view == VIEW(REQ_VIEW_LOG) ||
3024 view == VIEW(REQ_VIEW_PAGER))) {
3025 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3029 /* Always scroll the view even if it was split. That way
3030 * you can use Enter to scroll through the log view and
3031 * split open each commit diff. */
3032 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3034 /* FIXME: A minor workaround. Scrolling the view will call report("")
3035 * but if we are scrolling a non-current view this won't properly
3036 * update the view title. */
3038 update_view_title(view);
3044 pager_grep(struct view *view, struct line *line)
3047 char *text = line->data;
3052 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3059 pager_select(struct view *view, struct line *line)
3061 if (line->type == LINE_COMMIT) {
3062 char *text = (char *)line->data + STRING_SIZE("commit ");
3064 if (view != VIEW(REQ_VIEW_PAGER))
3065 string_copy_rev(view->ref, text);
3066 string_copy_rev(ref_commit, text);
3070 static struct view_ops pager_ops = {
3081 log_request(struct view *view, enum request request, struct line *line)
3086 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3089 return pager_request(view, request, line);
3093 static struct view_ops log_ops = {
3109 help_open(struct view *view)
3112 int lines = ARRAY_SIZE(req_info) + 2;
3115 if (view->lines > 0)
3118 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3119 if (!req_info[i].request)
3122 lines += run_requests + 1;
3124 view->line = calloc(lines, sizeof(*view->line));
3128 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3130 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3133 if (req_info[i].request == REQ_NONE)
3136 if (!req_info[i].request) {
3137 add_line_text(view, "", LINE_DEFAULT);
3138 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3142 key = get_key(req_info[i].request);
3144 key = "(no key defined)";
3146 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
3149 add_line_text(view, buf, LINE_DEFAULT);
3153 add_line_text(view, "", LINE_DEFAULT);
3154 add_line_text(view, "External commands:", LINE_DEFAULT);
3157 for (i = 0; i < run_requests; i++) {
3158 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3164 key = get_key_name(req->key);
3166 key = "(no key defined)";
3168 if (!string_format(buf, " %-10s %-14s `%s`",
3169 keymap_table[req->keymap].name,
3173 add_line_text(view, buf, LINE_DEFAULT);
3179 static struct view_ops help_ops = {
3194 struct tree_stack_entry {
3195 struct tree_stack_entry *prev; /* Entry below this in the stack */
3196 unsigned long lineno; /* Line number to restore */
3197 char *name; /* Position of name in opt_path */
3200 /* The top of the path stack. */
3201 static struct tree_stack_entry *tree_stack = NULL;
3202 unsigned long tree_lineno = 0;
3205 pop_tree_stack_entry(void)
3207 struct tree_stack_entry *entry = tree_stack;
3209 tree_lineno = entry->lineno;
3211 tree_stack = entry->prev;
3216 push_tree_stack_entry(const char *name, unsigned long lineno)
3218 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3219 size_t pathlen = strlen(opt_path);
3224 entry->prev = tree_stack;
3225 entry->name = opt_path + pathlen;
3228 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3229 pop_tree_stack_entry();
3233 /* Move the current line to the first tree entry. */
3235 entry->lineno = lineno;
3238 /* Parse output from git-ls-tree(1):
3240 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3241 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3242 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3243 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3246 #define SIZEOF_TREE_ATTR \
3247 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3249 #define TREE_UP_FORMAT "040000 tree %s\t.."
3252 tree_compare_entry(enum line_type type1, const char *name1,
3253 enum line_type type2, const char *name2)
3255 if (type1 != type2) {
3256 if (type1 == LINE_TREE_DIR)
3261 return strcmp(name1, name2);
3265 tree_path(struct line *line)
3267 const char *path = line->data;
3269 return path + SIZEOF_TREE_ATTR;
3273 tree_read(struct view *view, char *text)
3275 size_t textlen = text ? strlen(text) : 0;
3276 char buf[SIZEOF_STR];
3278 enum line_type type;
3279 bool first_read = view->lines == 0;
3283 if (textlen <= SIZEOF_TREE_ATTR)
3286 type = text[STRING_SIZE("100644 ")] == 't'
3287 ? LINE_TREE_DIR : LINE_TREE_FILE;
3290 /* Add path info line */
3291 if (!string_format(buf, "Directory path /%s", opt_path) ||
3292 !realloc_lines(view, view->line_size + 1) ||
3293 !add_line_text(view, buf, LINE_DEFAULT))
3296 /* Insert "link" to parent directory. */
3298 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
3299 !realloc_lines(view, view->line_size + 1) ||
3300 !add_line_text(view, buf, LINE_TREE_DIR))
3305 /* Strip the path part ... */
3307 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3308 size_t striplen = strlen(opt_path);
3309 char *path = text + SIZEOF_TREE_ATTR;
3311 if (pathlen > striplen)
3312 memmove(path, path + striplen,
3313 pathlen - striplen + 1);
3316 /* Skip "Directory ..." and ".." line. */
3317 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
3318 struct line *line = &view->line[pos];
3319 const char *path1 = tree_path(line);
3320 char *path2 = text + SIZEOF_TREE_ATTR;
3321 int cmp = tree_compare_entry(line->type, path1, type, path2);
3326 text = strdup(text);
3330 if (view->lines > pos)
3331 memmove(&view->line[pos + 1], &view->line[pos],
3332 (view->lines - pos) * sizeof(*line));
3334 line = &view->line[pos];
3341 if (!add_line_text(view, text, type))
3344 if (tree_lineno > view->lineno) {
3345 view->lineno = tree_lineno;
3353 tree_request(struct view *view, enum request request, struct line *line)
3355 enum open_flags flags;
3357 if (request == REQ_VIEW_BLAME) {
3358 const char *filename = tree_path(line);
3360 if (line->type == LINE_TREE_DIR) {
3361 report("Cannot show blame for directory %s", opt_path);
3365 string_copy(opt_ref, view->vid);
3366 string_format(opt_file, "%s%s", opt_path, filename);
3369 if (request == REQ_TREE_PARENT) {
3372 request = REQ_ENTER;
3373 line = &view->line[1];
3375 /* quit view if at top of tree */
3376 return REQ_VIEW_CLOSE;
3379 if (request != REQ_ENTER)
3382 /* Cleanup the stack if the tree view is at a different tree. */
3383 while (!*opt_path && tree_stack)
3384 pop_tree_stack_entry();
3386 switch (line->type) {
3388 /* Depending on whether it is a subdir or parent (updir?) link
3389 * mangle the path buffer. */
3390 if (line == &view->line[1] && *opt_path) {
3391 pop_tree_stack_entry();
3394 const char *basename = tree_path(line);
3396 push_tree_stack_entry(basename, view->lineno);
3399 /* Trees and subtrees share the same ID, so they are not not
3400 * unique like blobs. */
3401 flags = OPEN_RELOAD;
3402 request = REQ_VIEW_TREE;
3405 case LINE_TREE_FILE:
3406 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3407 request = REQ_VIEW_BLOB;
3414 open_view(view, request, flags);
3415 if (request == REQ_VIEW_TREE) {
3416 view->lineno = tree_lineno;
3423 tree_select(struct view *view, struct line *line)
3425 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3427 if (line->type == LINE_TREE_FILE) {
3428 string_copy_rev(ref_blob, text);
3430 } else if (line->type != LINE_TREE_DIR) {
3434 string_copy_rev(view->ref, text);
3437 static struct view_ops tree_ops = {
3448 blob_read(struct view *view, char *line)
3452 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3455 static struct view_ops blob_ops = {
3468 * Loading the blame view is a two phase job:
3470 * 1. File content is read either using opt_file from the
3471 * filesystem or using git-cat-file.
3472 * 2. Then blame information is incrementally added by
3473 * reading output from git-blame.
3476 struct blame_commit {
3477 char id[SIZEOF_REV]; /* SHA1 ID. */
3478 char title[128]; /* First line of the commit message. */
3479 char author[75]; /* Author of the commit. */
3480 struct tm time; /* Date from the author ident. */
3481 char filename[128]; /* Name of file. */
3485 struct blame_commit *commit;
3486 unsigned int header:1;
3490 #define BLAME_CAT_FILE_CMD "git cat-file blob %s:%s"
3491 #define BLAME_INCREMENTAL_CMD "git blame --incremental %s -- %s"
3494 blame_open(struct view *view)
3496 char path[SIZEOF_STR];
3497 char ref[SIZEOF_STR] = "";
3499 if (sq_quote(path, 0, opt_file) >= sizeof(path))
3502 if (*opt_ref && sq_quote(ref, 0, opt_ref) >= sizeof(ref))
3506 if (!string_format(view->cmd, BLAME_CAT_FILE_CMD, ref, path))
3509 view->pipe = fopen(opt_file, "r");
3511 !string_format(view->cmd, BLAME_CAT_FILE_CMD, "HEAD", path))
3516 view->pipe = popen(view->cmd, "r");
3520 if (!string_format(view->cmd, BLAME_INCREMENTAL_CMD, ref, path))
3524 string_format(view->ref, "%s ...", opt_file);
3525 string_copy_rev(view->vid, opt_file);
3526 set_nonblocking_input(TRUE);
3527 view->start_time = time(NULL);
3532 static struct blame_commit *
3533 get_blame_commit(struct view *view, const char *id)
3537 for (i = 0; i < view->lines; i++) {
3538 struct blame *blame = view->line[i].data;
3543 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3544 return blame->commit;
3548 struct blame_commit *commit = calloc(1, sizeof(*commit));
3551 string_ncopy(commit->id, id, SIZEOF_REV);
3557 parse_number(const char **posref, size_t *number, size_t min, size_t max)
3559 const char *pos = *posref;
3562 pos = strchr(pos + 1, ' ');
3563 if (!pos || !isdigit(pos[1]))
3565 *number = atoi(pos + 1);
3566 if (*number < min || *number > max)
3573 static struct blame_commit *
3574 parse_blame_commit(struct view *view, const char *text, int *blamed)
3576 struct blame_commit *commit;
3577 struct blame *blame;
3578 const char *pos = text + SIZEOF_REV - 1;
3582 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3585 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3586 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3589 commit = get_blame_commit(view, text);
3595 struct line *line = &view->line[lineno + group - 1];
3598 blame->commit = commit;
3599 blame->header = !group;
3607 blame_read_file(struct view *view, const char *line)
3612 if (view->lines > 0)
3613 pipe = popen(view->cmd, "r");
3614 else if (!view->parent)
3615 die("No blame exist for %s", view->vid);
3618 report("Failed to load blame data");
3627 size_t linelen = strlen(line);
3628 struct blame *blame = malloc(sizeof(*blame) + linelen);
3630 blame->commit = NULL;
3631 strncpy(blame->text, line, linelen);
3632 blame->text[linelen] = 0;
3633 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3638 match_blame_header(const char *name, char **line)
3640 size_t namelen = strlen(name);
3641 bool matched = !strncmp(name, *line, namelen);
3650 blame_read(struct view *view, char *line)
3652 static struct blame_commit *commit = NULL;
3653 static int blamed = 0;
3654 static time_t author_time;
3657 return blame_read_file(view, line);
3663 string_format(view->ref, "%s", view->vid);
3664 if (view_is_displayed(view)) {
3665 update_view_title(view);
3666 redraw_view_from(view, 0);
3672 commit = parse_blame_commit(view, line, &blamed);
3673 string_format(view->ref, "%s %2d%%", view->vid,
3674 blamed * 100 / view->lines);
3676 } else if (match_blame_header("author ", &line)) {
3677 string_ncopy(commit->author, line, strlen(line));
3679 } else if (match_blame_header("author-time ", &line)) {
3680 author_time = (time_t) atol(line);
3682 } else if (match_blame_header("author-tz ", &line)) {
3685 tz = ('0' - line[1]) * 60 * 60 * 10;
3686 tz += ('0' - line[2]) * 60 * 60;
3687 tz += ('0' - line[3]) * 60;
3688 tz += ('0' - line[4]) * 60;
3694 gmtime_r(&author_time, &commit->time);
3696 } else if (match_blame_header("summary ", &line)) {
3697 string_ncopy(commit->title, line, strlen(line));
3699 } else if (match_blame_header("filename ", &line)) {
3700 string_ncopy(commit->filename, line, strlen(line));
3708 blame_draw(struct view *view, struct line *line, unsigned int lineno)
3710 struct blame *blame = line->data;
3711 struct tm *time = NULL;
3712 const char *id = NULL, *author = NULL;
3714 if (blame->commit && *blame->commit->filename) {
3715 id = blame->commit->id;
3716 author = blame->commit->author;
3717 time = &blame->commit->time;
3720 if (opt_date && draw_date(view, time))
3724 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
3727 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
3730 if (draw_lineno(view, lineno))
3733 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
3738 blame_request(struct view *view, enum request request, struct line *line)
3740 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3741 struct blame *blame = line->data;
3745 if (!blame->commit) {
3746 report("No commit loaded yet");
3750 if (!strcmp(blame->commit->id, NULL_ID)) {
3751 char path[SIZEOF_STR];
3753 if (sq_quote(path, 0, view->vid) >= sizeof(path))
3755 string_format(opt_cmd, "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s 2>/dev/null", path);
3758 open_view(view, REQ_VIEW_DIFF, flags);
3769 blame_grep(struct view *view, struct line *line)
3771 struct blame *blame = line->data;
3772 struct blame_commit *commit = blame->commit;
3775 #define MATCH(text, on) \
3776 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3779 char buf[DATE_COLS + 1];
3781 if (MATCH(commit->title, 1) ||
3782 MATCH(commit->author, opt_author) ||
3783 MATCH(commit->id, opt_date))
3786 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
3791 return MATCH(blame->text, 1);
3797 blame_select(struct view *view, struct line *line)
3799 struct blame *blame = line->data;
3800 struct blame_commit *commit = blame->commit;
3805 if (!strcmp(commit->id, NULL_ID))
3806 string_ncopy(ref_commit, "HEAD", 4);
3808 string_copy_rev(ref_commit, commit->id);
3811 static struct view_ops blame_ops = {
3829 char rev[SIZEOF_REV];
3830 char name[SIZEOF_STR];
3834 char rev[SIZEOF_REV];
3835 char name[SIZEOF_STR];
3839 static char status_onbranch[SIZEOF_STR];
3840 static struct status stage_status;
3841 static enum line_type stage_line_type;
3842 static size_t stage_chunks;
3843 static int *stage_chunk;
3845 /* This should work even for the "On branch" line. */
3847 status_has_none(struct view *view, struct line *line)
3849 return line < view->line + view->lines && !line[1].data;
3852 /* Get fields from the diff line:
3853 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3856 status_get_diff(struct status *file, const char *buf, size_t bufsize)
3858 const char *old_mode = buf + 1;
3859 const char *new_mode = buf + 8;
3860 const char *old_rev = buf + 15;
3861 const char *new_rev = buf + 56;
3862 const char *status = buf + 97;
3865 old_mode[-1] != ':' ||
3866 new_mode[-1] != ' ' ||
3867 old_rev[-1] != ' ' ||
3868 new_rev[-1] != ' ' ||
3872 file->status = *status;
3874 string_copy_rev(file->old.rev, old_rev);
3875 string_copy_rev(file->new.rev, new_rev);
3877 file->old.mode = strtoul(old_mode, NULL, 8);
3878 file->new.mode = strtoul(new_mode, NULL, 8);
3880 file->old.name[0] = file->new.name[0] = 0;
3886 status_run(struct view *view, const char cmd[], char status, enum line_type type)
3888 struct status *file = NULL;
3889 struct status *unmerged = NULL;
3890 char buf[SIZEOF_STR * 4];
3894 pipe = popen(cmd, "r");
3898 add_line_data(view, NULL, type);
3900 while (!feof(pipe) && !ferror(pipe)) {
3904 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3907 bufsize += readsize;
3909 /* Process while we have NUL chars. */
3910 while ((sep = memchr(buf, 0, bufsize))) {
3911 size_t sepsize = sep - buf + 1;
3914 if (!realloc_lines(view, view->line_size + 1))
3917 file = calloc(1, sizeof(*file));
3921 add_line_data(view, file, type);
3924 /* Parse diff info part. */
3926 file->status = status;
3928 string_copy(file->old.rev, NULL_ID);
3930 } else if (!file->status) {
3931 if (!status_get_diff(file, buf, sepsize))
3935 memmove(buf, sep + 1, bufsize);
3937 sep = memchr(buf, 0, bufsize);
3940 sepsize = sep - buf + 1;
3942 /* Collapse all 'M'odified entries that
3943 * follow a associated 'U'nmerged entry.
3945 if (file->status == 'U') {
3948 } else if (unmerged) {
3949 int collapse = !strcmp(buf, unmerged->new.name);
3960 /* Grab the old name for rename/copy. */
3961 if (!*file->old.name &&
3962 (file->status == 'R' || file->status == 'C')) {
3963 sepsize = sep - buf + 1;
3964 string_ncopy(file->old.name, buf, sepsize);
3966 memmove(buf, sep + 1, bufsize);
3968 sep = memchr(buf, 0, bufsize);
3971 sepsize = sep - buf + 1;
3974 /* git-ls-files just delivers a NUL separated
3975 * list of file names similar to the second half
3976 * of the git-diff-* output. */
3977 string_ncopy(file->new.name, buf, sepsize);
3978 if (!*file->old.name)
3979 string_copy(file->old.name, file->new.name);
3981 memmove(buf, sep + 1, bufsize);
3992 if (!view->line[view->lines - 1].data)
3993 add_line_data(view, NULL, LINE_STAT_NONE);
3999 /* Don't show unmerged entries in the staged section. */
4000 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD"
4001 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
4002 #define STATUS_LIST_OTHER_CMD \
4003 "git ls-files -z --others --exclude-standard"
4004 #define STATUS_LIST_NO_HEAD_CMD \
4005 "git ls-files -z --cached --exclude-standard"
4007 #define STATUS_DIFF_INDEX_SHOW_CMD \
4008 "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null"
4010 #define STATUS_DIFF_FILES_SHOW_CMD \
4011 "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null"
4013 #define STATUS_DIFF_NO_HEAD_SHOW_CMD \
4014 "git diff --no-color --patch-with-stat /dev/null %s 2>/dev/null"
4016 /* First parse staged info using git-diff-index(1), then parse unstaged
4017 * info using git-diff-files(1), and finally untracked files using
4018 * git-ls-files(1). */
4020 status_open(struct view *view)
4022 unsigned long prev_lineno = view->lineno;
4026 if (!realloc_lines(view, view->line_size + 7))
4029 add_line_data(view, NULL, LINE_STAT_HEAD);
4031 string_copy(status_onbranch, "Initial commit");
4032 else if (!*opt_head)
4033 string_copy(status_onbranch, "Not currently on any branch");
4034 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4037 system("git update-index -q --refresh >/dev/null 2>/dev/null");
4040 if (!status_run(view, STATUS_LIST_NO_HEAD_CMD, 'A', LINE_STAT_STAGED))
4042 } else if (!status_run(view, STATUS_DIFF_INDEX_CMD, 0, LINE_STAT_STAGED)) {
4046 if (!status_run(view, STATUS_DIFF_FILES_CMD, 0, LINE_STAT_UNSTAGED) ||
4047 !status_run(view, STATUS_LIST_OTHER_CMD, '?', LINE_STAT_UNTRACKED))
4050 /* If all went well restore the previous line number to stay in
4051 * the context or select a line with something that can be
4053 if (prev_lineno >= view->lines)
4054 prev_lineno = view->lines - 1;
4055 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4057 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4060 /* If the above fails, always skip the "On branch" line. */
4061 if (prev_lineno < view->lines)
4062 view->lineno = prev_lineno;
4066 if (view->lineno < view->offset)
4067 view->offset = view->lineno;
4068 else if (view->offset + view->height <= view->lineno)
4069 view->offset = view->lineno - view->height + 1;
4075 status_draw(struct view *view, struct line *line, unsigned int lineno)
4077 struct status *status = line->data;
4078 enum line_type type;
4082 switch (line->type) {
4083 case LINE_STAT_STAGED:
4084 type = LINE_STAT_SECTION;
4085 text = "Changes to be committed:";
4088 case LINE_STAT_UNSTAGED:
4089 type = LINE_STAT_SECTION;
4090 text = "Changed but not updated:";
4093 case LINE_STAT_UNTRACKED:
4094 type = LINE_STAT_SECTION;
4095 text = "Untracked files:";
4098 case LINE_STAT_NONE:
4099 type = LINE_DEFAULT;
4100 text = " (no files)";
4103 case LINE_STAT_HEAD:
4104 type = LINE_STAT_HEAD;
4105 text = status_onbranch;
4112 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4114 buf[0] = status->status;
4115 if (draw_text(view, line->type, buf, TRUE))
4117 type = LINE_DEFAULT;
4118 text = status->new.name;
4121 draw_text(view, type, text, TRUE);
4126 status_enter(struct view *view, struct line *line)
4128 struct status *status = line->data;
4129 char oldpath[SIZEOF_STR] = "";
4130 char newpath[SIZEOF_STR] = "";
4133 enum open_flags split;
4135 if (line->type == LINE_STAT_NONE ||
4136 (!status && line[1].type == LINE_STAT_NONE)) {
4137 report("No file to diff");
4142 if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath))
4144 /* Diffs for unmerged entries are empty when pasing the
4145 * new path, so leave it empty. */
4146 if (status->status != 'U' &&
4147 sq_quote(newpath, 0, status->new.name) >= sizeof(newpath))
4152 line->type != LINE_STAT_UNTRACKED &&
4153 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
4156 switch (line->type) {
4157 case LINE_STAT_STAGED:
4159 if (!string_format_from(opt_cmd, &cmdsize,
4160 STATUS_DIFF_NO_HEAD_SHOW_CMD,
4164 if (!string_format_from(opt_cmd, &cmdsize,
4165 STATUS_DIFF_INDEX_SHOW_CMD,
4171 info = "Staged changes to %s";
4173 info = "Staged changes";
4176 case LINE_STAT_UNSTAGED:
4177 if (!string_format_from(opt_cmd, &cmdsize,
4178 STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath))
4181 info = "Unstaged changes to %s";
4183 info = "Unstaged changes";
4186 case LINE_STAT_UNTRACKED:
4191 report("No file to show");
4195 opt_pipe = fopen(status->new.name, "r");
4196 info = "Untracked file %s";
4199 case LINE_STAT_HEAD:
4203 die("line type %d not handled in switch", line->type);
4206 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4207 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | split);
4208 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4210 stage_status = *status;
4212 memset(&stage_status, 0, sizeof(stage_status));
4215 stage_line_type = line->type;
4217 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4224 status_exists(struct status *status, enum line_type type)
4226 struct view *view = VIEW(REQ_VIEW_STATUS);
4229 for (line = view->line; line < view->line + view->lines; line++) {
4230 struct status *pos = line->data;
4232 if (line->type == type && pos &&
4233 !strcmp(status->new.name, pos->new.name))
4242 status_update_prepare(enum line_type type)
4244 char cmd[SIZEOF_STR];
4248 type != LINE_STAT_UNTRACKED &&
4249 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4253 case LINE_STAT_STAGED:
4254 string_add(cmd, cmdsize, "git update-index -z --index-info");
4257 case LINE_STAT_UNSTAGED:
4258 case LINE_STAT_UNTRACKED:
4259 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
4263 die("line type %d not handled in switch", type);
4266 return popen(cmd, "w");
4270 status_update_write(FILE *pipe, struct status *status, enum line_type type)
4272 char buf[SIZEOF_STR];
4277 case LINE_STAT_STAGED:
4278 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4281 status->old.name, 0))
4285 case LINE_STAT_UNSTAGED:
4286 case LINE_STAT_UNTRACKED:
4287 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4292 die("line type %d not handled in switch", type);
4295 while (!ferror(pipe) && written < bufsize) {
4296 written += fwrite(buf + written, 1, bufsize - written, pipe);
4299 return written == bufsize;
4303 status_update_file(struct status *status, enum line_type type)
4305 FILE *pipe = status_update_prepare(type);
4311 result = status_update_write(pipe, status, type);
4317 status_update_files(struct view *view, struct line *line)
4319 FILE *pipe = status_update_prepare(line->type);
4321 struct line *pos = view->line + view->lines;
4328 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4331 for (file = 0, done = 0; result && file < files; line++, file++) {
4332 int almost_done = file * 100 / files;
4334 if (almost_done > done) {
4336 string_format(view->ref, "updating file %u of %u (%d%% done)",
4338 update_view_title(view);
4340 result = status_update_write(pipe, line->data, line->type);
4348 status_update(struct view *view)
4350 struct line *line = &view->line[view->lineno];
4352 assert(view->lines);
4355 /* This should work even for the "On branch" line. */
4356 if (line < view->line + view->lines && !line[1].data) {
4357 report("Nothing to update");
4361 if (!status_update_files(view, line + 1)) {
4362 report("Failed to update file status");
4366 } else if (!status_update_file(line->data, line->type)) {
4367 report("Failed to update file status");
4375 status_revert(struct status *status, enum line_type type, bool has_none)
4377 if (!status || type != LINE_STAT_UNSTAGED) {
4378 if (type == LINE_STAT_STAGED) {
4379 report("Cannot revert changes to staged files");
4380 } else if (type == LINE_STAT_UNTRACKED) {
4381 report("Cannot revert changes to untracked files");
4382 } else if (has_none) {
4383 report("Nothing to revert");
4385 report("Cannot revert changes to multiple files");
4390 char cmd[SIZEOF_STR];
4391 char file_sq[SIZEOF_STR];
4393 if (sq_quote(file_sq, 0, status->old.name) >= sizeof(file_sq) ||
4394 !string_format(cmd, "git checkout %s%s", opt_cdup, file_sq))
4397 return run_confirm(cmd, "Are you sure you want to overwrite any changes?");
4402 status_request(struct view *view, enum request request, struct line *line)
4404 struct status *status = line->data;
4407 case REQ_STATUS_UPDATE:
4408 if (!status_update(view))
4412 case REQ_STATUS_REVERT:
4413 if (!status_revert(status, line->type, status_has_none(view, line)))
4417 case REQ_STATUS_MERGE:
4418 if (!status || status->status != 'U') {
4419 report("Merging only possible for files with unmerged status ('U').");
4422 open_mergetool(status->new.name);
4429 open_editor(status->status != '?', status->new.name);
4432 case REQ_VIEW_BLAME:
4434 string_copy(opt_file, status->new.name);
4440 /* After returning the status view has been split to
4441 * show the stage view. No further reloading is
4443 status_enter(view, line);
4447 /* Simply reload the view. */
4454 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4460 status_select(struct view *view, struct line *line)
4462 struct status *status = line->data;
4463 char file[SIZEOF_STR] = "all files";
4467 if (status && !string_format(file, "'%s'", status->new.name))
4470 if (!status && line[1].type == LINE_STAT_NONE)
4473 switch (line->type) {
4474 case LINE_STAT_STAGED:
4475 text = "Press %s to unstage %s for commit";
4478 case LINE_STAT_UNSTAGED:
4479 text = "Press %s to stage %s for commit";
4482 case LINE_STAT_UNTRACKED:
4483 text = "Press %s to stage %s for addition";
4486 case LINE_STAT_HEAD:
4487 case LINE_STAT_NONE:
4488 text = "Nothing to update";
4492 die("line type %d not handled in switch", line->type);
4495 if (status && status->status == 'U') {
4496 text = "Press %s to resolve conflict in %s";
4497 key = get_key(REQ_STATUS_MERGE);
4500 key = get_key(REQ_STATUS_UPDATE);
4503 string_format(view->ref, text, key, file);
4507 status_grep(struct view *view, struct line *line)
4509 struct status *status = line->data;
4510 enum { S_STATUS, S_NAME, S_END } state;
4517 for (state = S_STATUS; state < S_END; state++) {
4521 case S_NAME: text = status->new.name; break;
4523 buf[0] = status->status;
4531 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4538 static struct view_ops status_ops = {
4550 stage_diff_line(FILE *pipe, struct line *line)
4552 const char *buf = line->data;
4553 size_t bufsize = strlen(buf);
4556 while (!ferror(pipe) && written < bufsize) {
4557 written += fwrite(buf + written, 1, bufsize - written, pipe);
4562 return written == bufsize;
4566 stage_diff_write(FILE *pipe, struct line *line, struct line *end)
4568 while (line < end) {
4569 if (!stage_diff_line(pipe, line++))
4571 if (line->type == LINE_DIFF_CHUNK ||
4572 line->type == LINE_DIFF_HEADER)
4579 static struct line *
4580 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4582 for (; view->line < line; line--)
4583 if (line->type == type)
4590 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
4592 char cmd[SIZEOF_STR];
4594 struct line *diff_hdr;
4597 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4602 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4605 if (!string_format_from(cmd, &cmdsize,
4606 "git apply --whitespace=nowarn %s %s - && "
4607 "git update-index -q --unmerged --refresh 2>/dev/null",
4608 revert ? "" : "--cached",
4609 revert || stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
4612 pipe = popen(cmd, "w");
4616 if (!stage_diff_write(pipe, diff_hdr, chunk) ||
4617 !stage_diff_write(pipe, chunk, view->line + view->lines))
4622 return chunk ? TRUE : FALSE;
4626 stage_update(struct view *view, struct line *line)
4628 struct line *chunk = NULL;
4630 if (!opt_no_head && stage_line_type != LINE_STAT_UNTRACKED)
4631 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4634 if (!stage_apply_chunk(view, chunk, FALSE)) {
4635 report("Failed to apply chunk");
4639 } else if (!stage_status.status) {
4640 view = VIEW(REQ_VIEW_STATUS);
4642 for (line = view->line; line < view->line + view->lines; line++)
4643 if (line->type == stage_line_type)
4646 if (!status_update_files(view, line + 1)) {
4647 report("Failed to update files");
4651 } else if (!status_update_file(&stage_status, stage_line_type)) {
4652 report("Failed to update file");
4660 stage_revert(struct view *view, struct line *line)
4662 struct line *chunk = NULL;
4664 if (!opt_no_head && stage_line_type == LINE_STAT_UNSTAGED)
4665 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4668 if (!prompt_yesno("Are you sure you want to revert changes?"))
4671 if (!stage_apply_chunk(view, chunk, TRUE)) {
4672 report("Failed to revert chunk");
4678 return status_revert(stage_status.status ? &stage_status : NULL,
4679 stage_line_type, FALSE);
4685 stage_next(struct view *view, struct line *line)
4689 if (!stage_chunks) {
4690 static size_t alloc = 0;
4693 for (line = view->line; line < view->line + view->lines; line++) {
4694 if (line->type != LINE_DIFF_CHUNK)
4697 tmp = realloc_items(stage_chunk, &alloc,
4698 stage_chunks, sizeof(*tmp));
4700 report("Allocation failure");
4705 stage_chunk[stage_chunks++] = line - view->line;
4709 for (i = 0; i < stage_chunks; i++) {
4710 if (stage_chunk[i] > view->lineno) {
4711 do_scroll_view(view, stage_chunk[i] - view->lineno);
4712 report("Chunk %d of %d", i + 1, stage_chunks);
4717 report("No next chunk found");
4721 stage_request(struct view *view, enum request request, struct line *line)
4724 case REQ_STATUS_UPDATE:
4725 if (!stage_update(view, line))
4729 case REQ_STATUS_REVERT:
4730 if (!stage_revert(view, line))
4734 case REQ_STAGE_NEXT:
4735 if (stage_line_type == LINE_STAT_UNTRACKED) {
4736 report("File is untracked; press %s to add",
4737 get_key(REQ_STATUS_UPDATE));
4740 stage_next(view, line);
4744 if (!stage_status.new.name[0])
4747 open_editor(stage_status.status != '?', stage_status.new.name);
4751 /* Reload everything ... */
4754 case REQ_VIEW_BLAME:
4755 if (stage_status.new.name[0]) {
4756 string_copy(opt_file, stage_status.new.name);
4762 return pager_request(view, request, line);
4768 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4770 /* Check whether the staged entry still exists, and close the
4771 * stage view if it doesn't. */
4772 if (!status_exists(&stage_status, stage_line_type))
4773 return REQ_VIEW_CLOSE;
4775 if (stage_line_type == LINE_STAT_UNTRACKED)
4776 opt_pipe = fopen(stage_status.new.name, "r");
4777 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
4782 static struct view_ops stage_ops = {
4798 char id[SIZEOF_REV]; /* SHA1 ID. */
4799 char title[128]; /* First line of the commit message. */
4800 char author[75]; /* Author of the commit. */
4801 struct tm time; /* Date from the author ident. */
4802 struct ref **refs; /* Repository references. */
4803 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
4804 size_t graph_size; /* The width of the graph array. */
4805 bool has_parents; /* Rewritten --parents seen. */
4808 /* Size of rev graph with no "padding" columns */
4809 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
4812 struct rev_graph *prev, *next, *parents;
4813 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
4815 struct commit *commit;
4817 unsigned int boundary:1;
4820 /* Parents of the commit being visualized. */
4821 static struct rev_graph graph_parents[4];
4823 /* The current stack of revisions on the graph. */
4824 static struct rev_graph graph_stacks[4] = {
4825 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
4826 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
4827 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
4828 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
4832 graph_parent_is_merge(struct rev_graph *graph)
4834 return graph->parents->size > 1;
4838 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
4840 struct commit *commit = graph->commit;
4842 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
4843 commit->graph[commit->graph_size++] = symbol;
4847 clear_rev_graph(struct rev_graph *graph)
4849 graph->boundary = 0;
4850 graph->size = graph->pos = 0;
4851 graph->commit = NULL;
4852 memset(graph->parents, 0, sizeof(*graph->parents));
4856 done_rev_graph(struct rev_graph *graph)
4858 if (graph_parent_is_merge(graph) &&
4859 graph->pos < graph->size - 1 &&
4860 graph->next->size == graph->size + graph->parents->size - 1) {
4861 size_t i = graph->pos + graph->parents->size - 1;
4863 graph->commit->graph_size = i * 2;
4864 while (i < graph->next->size - 1) {
4865 append_to_rev_graph(graph, ' ');
4866 append_to_rev_graph(graph, '\\');
4871 clear_rev_graph(graph);
4875 push_rev_graph(struct rev_graph *graph, const char *parent)
4879 /* "Collapse" duplicate parents lines.
4881 * FIXME: This needs to also update update the drawn graph but
4882 * for now it just serves as a method for pruning graph lines. */
4883 for (i = 0; i < graph->size; i++)
4884 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
4887 if (graph->size < SIZEOF_REVITEMS) {
4888 string_copy_rev(graph->rev[graph->size++], parent);
4893 get_rev_graph_symbol(struct rev_graph *graph)
4897 if (graph->boundary)
4898 symbol = REVGRAPH_BOUND;
4899 else if (graph->parents->size == 0)
4900 symbol = REVGRAPH_INIT;
4901 else if (graph_parent_is_merge(graph))
4902 symbol = REVGRAPH_MERGE;
4903 else if (graph->pos >= graph->size)
4904 symbol = REVGRAPH_BRANCH;
4906 symbol = REVGRAPH_COMMIT;
4912 draw_rev_graph(struct rev_graph *graph)
4915 chtype separator, line;
4917 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
4918 static struct rev_filler fillers[] = {
4924 chtype symbol = get_rev_graph_symbol(graph);
4925 struct rev_filler *filler;
4928 if (opt_line_graphics)
4929 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
4931 filler = &fillers[DEFAULT];
4933 for (i = 0; i < graph->pos; i++) {
4934 append_to_rev_graph(graph, filler->line);
4935 if (graph_parent_is_merge(graph->prev) &&
4936 graph->prev->pos == i)
4937 filler = &fillers[RSHARP];
4939 append_to_rev_graph(graph, filler->separator);
4942 /* Place the symbol for this revision. */
4943 append_to_rev_graph(graph, symbol);
4945 if (graph->prev->size > graph->size)
4946 filler = &fillers[RDIAG];
4948 filler = &fillers[DEFAULT];
4952 for (; i < graph->size; i++) {
4953 append_to_rev_graph(graph, filler->separator);
4954 append_to_rev_graph(graph, filler->line);
4955 if (graph_parent_is_merge(graph->prev) &&
4956 i < graph->prev->pos + graph->parents->size)
4957 filler = &fillers[RSHARP];
4958 if (graph->prev->size > graph->size)
4959 filler = &fillers[LDIAG];
4962 if (graph->prev->size > graph->size) {
4963 append_to_rev_graph(graph, filler->separator);
4964 if (filler->line != ' ')
4965 append_to_rev_graph(graph, filler->line);
4969 /* Prepare the next rev graph */
4971 prepare_rev_graph(struct rev_graph *graph)
4975 /* First, traverse all lines of revisions up to the active one. */
4976 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
4977 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
4980 push_rev_graph(graph->next, graph->rev[graph->pos]);
4983 /* Interleave the new revision parent(s). */
4984 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
4985 push_rev_graph(graph->next, graph->parents->rev[i]);
4987 /* Lastly, put any remaining revisions. */
4988 for (i = graph->pos + 1; i < graph->size; i++)
4989 push_rev_graph(graph->next, graph->rev[i]);
4993 update_rev_graph(struct rev_graph *graph)
4995 /* If this is the finalizing update ... */
4997 prepare_rev_graph(graph);
4999 /* Graph visualization needs a one rev look-ahead,
5000 * so the first update doesn't visualize anything. */
5001 if (!graph->prev->commit)
5004 draw_rev_graph(graph->prev);
5005 done_rev_graph(graph->prev->prev);
5014 main_draw(struct view *view, struct line *line, unsigned int lineno)
5016 struct commit *commit = line->data;
5018 if (!*commit->author)
5021 if (opt_date && draw_date(view, &commit->time))
5025 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5028 if (opt_rev_graph && commit->graph_size &&
5029 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5032 if (opt_show_refs && commit->refs) {
5036 enum line_type type;
5038 if (commit->refs[i]->head)
5039 type = LINE_MAIN_HEAD;
5040 else if (commit->refs[i]->ltag)
5041 type = LINE_MAIN_LOCAL_TAG;
5042 else if (commit->refs[i]->tag)
5043 type = LINE_MAIN_TAG;
5044 else if (commit->refs[i]->tracked)
5045 type = LINE_MAIN_TRACKED;
5046 else if (commit->refs[i]->remote)
5047 type = LINE_MAIN_REMOTE;
5049 type = LINE_MAIN_REF;
5051 if (draw_text(view, type, "[", TRUE) ||
5052 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5053 draw_text(view, type, "]", TRUE))
5056 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5058 } while (commit->refs[i++]->next);
5061 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5065 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5067 main_read(struct view *view, char *line)
5069 static struct rev_graph *graph = graph_stacks;
5070 enum line_type type;
5071 struct commit *commit;
5076 if (!view->lines && !view->parent)
5077 die("No revisions match the given arguments.");
5078 if (view->lines > 0) {
5079 commit = view->line[view->lines - 1].data;
5080 if (!*commit->author) {
5083 graph->commit = NULL;
5086 update_rev_graph(graph);
5088 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5089 clear_rev_graph(&graph_stacks[i]);
5093 type = get_line_type(line);
5094 if (type == LINE_COMMIT) {
5095 commit = calloc(1, sizeof(struct commit));
5099 line += STRING_SIZE("commit ");
5101 graph->boundary = 1;
5105 string_copy_rev(commit->id, line);
5106 commit->refs = get_refs(commit->id);
5107 graph->commit = commit;
5108 add_line_data(view, commit, LINE_MAIN_COMMIT);
5110 while ((line = strchr(line, ' '))) {
5112 push_rev_graph(graph->parents, line);
5113 commit->has_parents = TRUE;
5120 commit = view->line[view->lines - 1].data;
5124 if (commit->has_parents)
5126 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5131 /* Parse author lines where the name may be empty:
5132 * author <email@address.tld> 1138474660 +0100
5134 char *ident = line + STRING_SIZE("author ");
5135 char *nameend = strchr(ident, '<');
5136 char *emailend = strchr(ident, '>');
5138 if (!nameend || !emailend)
5141 update_rev_graph(graph);
5142 graph = graph->next;
5144 *nameend = *emailend = 0;
5145 ident = chomp_string(ident);
5147 ident = chomp_string(nameend + 1);
5152 string_ncopy(commit->author, ident, strlen(ident));
5154 /* Parse epoch and timezone */
5155 if (emailend[1] == ' ') {
5156 char *secs = emailend + 2;
5157 char *zone = strchr(secs, ' ');
5158 time_t time = (time_t) atol(secs);
5160 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5164 tz = ('0' - zone[1]) * 60 * 60 * 10;
5165 tz += ('0' - zone[2]) * 60 * 60;
5166 tz += ('0' - zone[3]) * 60;
5167 tz += ('0' - zone[4]) * 60;
5175 gmtime_r(&time, &commit->time);
5180 /* Fill in the commit title if it has not already been set. */
5181 if (commit->title[0])
5184 /* Require titles to start with a non-space character at the
5185 * offset used by git log. */
5186 if (strncmp(line, " ", 4))
5189 /* Well, if the title starts with a whitespace character,
5190 * try to be forgiving. Otherwise we end up with no title. */
5191 while (isspace(*line))
5195 /* FIXME: More graceful handling of titles; append "..." to
5196 * shortened titles, etc. */
5198 string_ncopy(commit->title, line, strlen(line));
5205 main_request(struct view *view, enum request request, struct line *line)
5207 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5211 open_view(view, REQ_VIEW_DIFF, flags);
5215 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5225 grep_refs(struct ref **refs, regex_t *regex)
5233 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5235 } while (refs[i++]->next);
5241 main_grep(struct view *view, struct line *line)
5243 struct commit *commit = line->data;
5244 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5245 char buf[DATE_COLS + 1];
5248 for (state = S_TITLE; state < S_END; state++) {
5252 case S_TITLE: text = commit->title; break;
5256 text = commit->author;
5261 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5268 if (grep_refs(commit->refs, view->regex) == TRUE)
5275 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5283 main_select(struct view *view, struct line *line)
5285 struct commit *commit = line->data;
5287 string_copy_rev(view->ref, commit->id);
5288 string_copy_rev(ref_commit, view->ref);
5291 static struct view_ops main_ops = {
5303 * Unicode / UTF-8 handling
5305 * NOTE: Much of the following code for dealing with unicode is derived from
5306 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5307 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5310 /* I've (over)annotated a lot of code snippets because I am not entirely
5311 * confident that the approach taken by this small UTF-8 interface is correct.
5315 unicode_width(unsigned long c)
5318 (c <= 0x115f /* Hangul Jamo */
5321 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5323 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5324 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5325 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5326 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5327 || (c >= 0xffe0 && c <= 0xffe6)
5328 || (c >= 0x20000 && c <= 0x2fffd)
5329 || (c >= 0x30000 && c <= 0x3fffd)))
5333 return opt_tab_size;
5338 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5339 * Illegal bytes are set one. */
5340 static const unsigned char utf8_bytes[256] = {
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 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,
5346 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,
5347 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,
5348 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,
5351 /* Decode UTF-8 multi-byte representation into a unicode character. */
5352 static inline unsigned long
5353 utf8_to_unicode(const char *string, size_t length)
5355 unsigned long unicode;
5359 unicode = string[0];
5362 unicode = (string[0] & 0x1f) << 6;
5363 unicode += (string[1] & 0x3f);
5366 unicode = (string[0] & 0x0f) << 12;
5367 unicode += ((string[1] & 0x3f) << 6);
5368 unicode += (string[2] & 0x3f);
5371 unicode = (string[0] & 0x0f) << 18;
5372 unicode += ((string[1] & 0x3f) << 12);
5373 unicode += ((string[2] & 0x3f) << 6);
5374 unicode += (string[3] & 0x3f);
5377 unicode = (string[0] & 0x0f) << 24;
5378 unicode += ((string[1] & 0x3f) << 18);
5379 unicode += ((string[2] & 0x3f) << 12);
5380 unicode += ((string[3] & 0x3f) << 6);
5381 unicode += (string[4] & 0x3f);
5384 unicode = (string[0] & 0x01) << 30;
5385 unicode += ((string[1] & 0x3f) << 24);
5386 unicode += ((string[2] & 0x3f) << 18);
5387 unicode += ((string[3] & 0x3f) << 12);
5388 unicode += ((string[4] & 0x3f) << 6);
5389 unicode += (string[5] & 0x3f);
5392 die("Invalid unicode length");
5395 /* Invalid characters could return the special 0xfffd value but NUL
5396 * should be just as good. */
5397 return unicode > 0xffff ? 0 : unicode;
5400 /* Calculates how much of string can be shown within the given maximum width
5401 * and sets trimmed parameter to non-zero value if all of string could not be
5402 * shown. If the reserve flag is TRUE, it will reserve at least one
5403 * trailing character, which can be useful when drawing a delimiter.
5405 * Returns the number of bytes to output from string to satisfy max_width. */
5407 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5409 const char *start = string;
5410 const char *end = strchr(string, '\0');
5411 unsigned char last_bytes = 0;
5412 size_t last_ucwidth = 0;
5417 while (string < end) {
5418 int c = *(unsigned char *) string;
5419 unsigned char bytes = utf8_bytes[c];
5421 unsigned long unicode;
5423 if (string + bytes > end)
5426 /* Change representation to figure out whether
5427 * it is a single- or double-width character. */
5429 unicode = utf8_to_unicode(string, bytes);
5430 /* FIXME: Graceful handling of invalid unicode character. */
5434 ucwidth = unicode_width(unicode);
5436 if (*width > max_width) {
5439 if (reserve && *width == max_width) {
5440 string -= last_bytes;
5441 *width -= last_ucwidth;
5448 last_ucwidth = ucwidth;
5451 return string - start;
5459 /* Whether or not the curses interface has been initialized. */
5460 static bool cursed = FALSE;
5462 /* The status window is used for polling keystrokes. */
5463 static WINDOW *status_win;
5465 static bool status_empty = TRUE;
5467 /* Update status and title window. */
5469 report(const char *msg, ...)
5471 struct view *view = display[current_view];
5477 char buf[SIZEOF_STR];
5480 va_start(args, msg);
5481 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5482 buf[sizeof(buf) - 1] = 0;
5483 buf[sizeof(buf) - 2] = '.';
5484 buf[sizeof(buf) - 3] = '.';
5485 buf[sizeof(buf) - 4] = '.';
5491 if (!status_empty || *msg) {
5494 va_start(args, msg);
5496 wmove(status_win, 0, 0);
5498 vwprintw(status_win, msg, args);
5499 status_empty = FALSE;
5501 status_empty = TRUE;
5503 wclrtoeol(status_win);
5504 wrefresh(status_win);
5509 update_view_title(view);
5510 update_display_cursor(view);
5513 /* Controls when nodelay should be in effect when polling user input. */
5515 set_nonblocking_input(bool loading)
5517 static unsigned int loading_views;
5519 if ((loading == FALSE && loading_views-- == 1) ||
5520 (loading == TRUE && loading_views++ == 0))
5521 nodelay(status_win, loading);
5529 /* Initialize the curses library */
5530 if (isatty(STDIN_FILENO)) {
5531 cursed = !!initscr();
5533 /* Leave stdin and stdout alone when acting as a pager. */
5534 FILE *io = fopen("/dev/tty", "r+");
5537 die("Failed to open /dev/tty");
5538 cursed = !!newterm(NULL, io, io);
5542 die("Failed to initialize curses");
5544 nonl(); /* Tell curses not to do NL->CR/NL on output */
5545 cbreak(); /* Take input chars one at a time, no wait for \n */
5546 noecho(); /* Don't echo input */
5547 leaveok(stdscr, TRUE);
5552 getmaxyx(stdscr, y, x);
5553 status_win = newwin(1, 0, y - 1, 0);
5555 die("Failed to create status window");
5557 /* Enable keyboard mapping */
5558 keypad(status_win, TRUE);
5559 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5561 TABSIZE = opt_tab_size;
5562 if (opt_line_graphics) {
5563 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5568 prompt_yesno(const char *prompt)
5570 enum { WAIT, STOP, CANCEL } status = WAIT;
5571 bool answer = FALSE;
5573 while (status == WAIT) {
5579 foreach_view (view, i)
5584 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
5585 wclrtoeol(status_win);
5587 /* Refresh, accept single keystroke of input */
5588 key = wgetch(status_win);
5612 /* Clear the status window */
5613 status_empty = FALSE;
5620 read_prompt(const char *prompt)
5622 enum { READING, STOP, CANCEL } status = READING;
5623 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
5626 while (status == READING) {
5632 foreach_view (view, i)
5637 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5638 wclrtoeol(status_win);
5640 /* Refresh, accept single keystroke of input */
5641 key = wgetch(status_win);
5646 status = pos ? STOP : CANCEL;
5664 if (pos >= sizeof(buf)) {
5665 report("Input string too long");
5670 buf[pos++] = (char) key;
5674 /* Clear the status window */
5675 status_empty = FALSE;
5678 if (status == CANCEL)
5687 * Repository references
5690 static struct ref *refs = NULL;
5691 static size_t refs_alloc = 0;
5692 static size_t refs_size = 0;
5694 /* Id <-> ref store */
5695 static struct ref ***id_refs = NULL;
5696 static size_t id_refs_alloc = 0;
5697 static size_t id_refs_size = 0;
5700 compare_refs(const void *ref1_, const void *ref2_)
5702 const struct ref *ref1 = *(const struct ref **)ref1_;
5703 const struct ref *ref2 = *(const struct ref **)ref2_;
5705 if (ref1->tag != ref2->tag)
5706 return ref2->tag - ref1->tag;
5707 if (ref1->ltag != ref2->ltag)
5708 return ref2->ltag - ref2->ltag;
5709 if (ref1->head != ref2->head)
5710 return ref2->head - ref1->head;
5711 if (ref1->tracked != ref2->tracked)
5712 return ref2->tracked - ref1->tracked;
5713 if (ref1->remote != ref2->remote)
5714 return ref2->remote - ref1->remote;
5715 return strcmp(ref1->name, ref2->name);
5718 static struct ref **
5719 get_refs(const char *id)
5721 struct ref ***tmp_id_refs;
5722 struct ref **ref_list = NULL;
5723 size_t ref_list_alloc = 0;
5724 size_t ref_list_size = 0;
5727 for (i = 0; i < id_refs_size; i++)
5728 if (!strcmp(id, id_refs[i][0]->id))
5731 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
5736 id_refs = tmp_id_refs;
5738 for (i = 0; i < refs_size; i++) {
5741 if (strcmp(id, refs[i].id))
5744 tmp = realloc_items(ref_list, &ref_list_alloc,
5745 ref_list_size + 1, sizeof(*ref_list));
5753 ref_list[ref_list_size] = &refs[i];
5754 /* XXX: The properties of the commit chains ensures that we can
5755 * safely modify the shared ref. The repo references will
5756 * always be similar for the same id. */
5757 ref_list[ref_list_size]->next = 1;
5763 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
5764 ref_list[ref_list_size - 1]->next = 0;
5765 id_refs[id_refs_size++] = ref_list;
5772 read_ref(char *id, size_t idlen, char *name, size_t namelen)
5777 bool remote = FALSE;
5778 bool tracked = FALSE;
5779 bool check_replace = FALSE;
5782 if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) {
5783 if (!strcmp(name + namelen - 3, "^{}")) {
5786 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
5787 check_replace = TRUE;
5793 namelen -= STRING_SIZE("refs/tags/");
5794 name += STRING_SIZE("refs/tags/");
5796 } else if (!strncmp(name, "refs/remotes/", STRING_SIZE("refs/remotes/"))) {
5798 namelen -= STRING_SIZE("refs/remotes/");
5799 name += STRING_SIZE("refs/remotes/");
5800 tracked = !strcmp(opt_remote, name);
5802 } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5803 namelen -= STRING_SIZE("refs/heads/");
5804 name += STRING_SIZE("refs/heads/");
5805 head = !strncmp(opt_head, name, namelen);
5807 } else if (!strcmp(name, "HEAD")) {
5808 opt_no_head = FALSE;
5812 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
5813 /* it's an annotated tag, replace the previous sha1 with the
5814 * resolved commit id; relies on the fact git-ls-remote lists
5815 * the commit id of an annotated tag right before the commit id
5817 refs[refs_size - 1].ltag = ltag;
5818 string_copy_rev(refs[refs_size - 1].id, id);
5822 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
5826 ref = &refs[refs_size++];
5827 ref->name = malloc(namelen + 1);
5831 strncpy(ref->name, name, namelen);
5832 ref->name[namelen] = 0;
5836 ref->remote = remote;
5837 ref->tracked = tracked;
5838 string_copy_rev(ref->id, id);
5846 const char *cmd_env = getenv("TIG_LS_REMOTE");
5847 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
5852 while (refs_size > 0)
5853 free(refs[--refs_size].name);
5854 while (id_refs_size > 0)
5855 free(id_refs[--id_refs_size]);
5857 return read_properties(popen(cmd, "r"), "\t", read_ref);
5861 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
5863 if (!strcmp(name, "i18n.commitencoding"))
5864 string_ncopy(opt_encoding, value, valuelen);
5866 if (!strcmp(name, "core.editor"))
5867 string_ncopy(opt_editor, value, valuelen);
5869 /* branch.<head>.remote */
5871 !strncmp(name, "branch.", 7) &&
5872 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5873 !strcmp(name + 7 + strlen(opt_head), ".remote"))
5874 string_ncopy(opt_remote, value, valuelen);
5876 if (*opt_head && *opt_remote &&
5877 !strncmp(name, "branch.", 7) &&
5878 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5879 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
5880 size_t from = strlen(opt_remote);
5882 if (!strncmp(value, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5883 value += STRING_SIZE("refs/heads/");
5884 valuelen -= STRING_SIZE("refs/heads/");
5887 if (!string_format_from(opt_remote, &from, "/%s", value))
5895 load_git_config(void)
5897 return read_properties(popen("git " GIT_CONFIG " --list", "r"),
5898 "=", read_repo_config_option);
5902 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
5904 if (!opt_git_dir[0]) {
5905 string_ncopy(opt_git_dir, name, namelen);
5907 } else if (opt_is_inside_work_tree == -1) {
5908 /* This can be 3 different values depending on the
5909 * version of git being used. If git-rev-parse does not
5910 * understand --is-inside-work-tree it will simply echo
5911 * the option else either "true" or "false" is printed.
5912 * Default to true for the unknown case. */
5913 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
5915 } else if (opt_cdup[0] == ' ') {
5916 string_ncopy(opt_cdup, name, namelen);
5918 if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5919 namelen -= STRING_SIZE("refs/heads/");
5920 name += STRING_SIZE("refs/heads/");
5921 string_ncopy(opt_head, name, namelen);
5929 load_repo_info(void)
5932 FILE *pipe = popen("(git rev-parse --git-dir --is-inside-work-tree "
5933 " --show-cdup; git symbolic-ref HEAD) 2>/dev/null", "r");
5935 /* XXX: The line outputted by "--show-cdup" can be empty so
5936 * initialize it to something invalid to make it possible to
5937 * detect whether it has been set or not. */
5940 result = read_properties(pipe, "=", read_repo_info);
5941 if (opt_cdup[0] == ' ')
5948 read_properties(FILE *pipe, const char *separators,
5949 int (*read_property)(char *, size_t, char *, size_t))
5951 char buffer[BUFSIZ];
5958 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
5963 name = chomp_string(name);
5964 namelen = strcspn(name, separators);
5966 if (name[namelen]) {
5968 value = chomp_string(name + namelen + 1);
5969 valuelen = strlen(value);
5976 state = read_property(name, namelen, value, valuelen);
5979 if (state != ERR && ferror(pipe))
5992 static void __NORETURN
5995 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6001 static void __NORETURN
6002 die(const char *err, ...)
6008 va_start(args, err);
6009 fputs("tig: ", stderr);
6010 vfprintf(stderr, err, args);
6011 fputs("\n", stderr);
6018 warn(const char *msg, ...)
6022 va_start(args, msg);
6023 fputs("tig warning: ", stderr);
6024 vfprintf(stderr, msg, args);
6025 fputs("\n", stderr);
6030 main(int argc, const char *argv[])
6033 enum request request;
6036 signal(SIGINT, quit);
6038 if (setlocale(LC_ALL, "")) {
6039 char *codeset = nl_langinfo(CODESET);
6041 string_ncopy(opt_codeset, codeset, strlen(codeset));
6044 if (load_repo_info() == ERR)
6045 die("Failed to load repo info.");
6047 if (load_options() == ERR)
6048 die("Failed to load user config.");
6050 if (load_git_config() == ERR)
6051 die("Failed to load repo config.");
6053 request = parse_options(argc, argv);
6054 if (request == REQ_NONE)
6057 /* Require a git repository unless when running in pager mode. */
6058 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6059 die("Not a git repository");
6061 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6064 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6065 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6066 if (opt_iconv == ICONV_NONE)
6067 die("Failed to initialize character set conversion");
6070 if (load_refs() == ERR)
6071 die("Failed to load refs.");
6073 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
6074 view->cmd_env = getenv(view->cmd_env);
6078 while (view_driver(display[current_view], request)) {
6082 foreach_view (view, i)
6085 /* Refresh, accept single keystroke of input */
6086 key = wgetch(status_win);
6088 /* wgetch() with nodelay() enabled returns ERR when there's no
6095 request = get_keybinding(display[current_view]->keymap, key);
6097 /* Some low-level request handling. This keeps access to
6098 * status_win restricted. */
6102 char *cmd = read_prompt(":");
6104 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
6105 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
6106 request = REQ_VIEW_DIFF;
6108 request = REQ_VIEW_PAGER;
6111 /* Always reload^Wrerun commands from the prompt. */
6112 open_view(view, request, OPEN_RELOAD);
6119 case REQ_SEARCH_BACK:
6121 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6122 char *search = read_prompt(prompt);
6125 string_ncopy(opt_search, search, strlen(search));
6130 case REQ_SCREEN_RESIZE:
6134 getmaxyx(stdscr, height, width);
6136 /* Resize the status view and let the view driver take
6137 * care of resizing the displayed views. */
6138 wresize(status_win, 1, width);
6139 mvwin(status_win, height - 1, 0);
6140 wrefresh(status_win);