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(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_CHECKOUT, "Checkout file"), \
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, char *argv[])
487 enum request request = REQ_VIEW_MAIN;
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++) {
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_CHECKOUT },
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'";
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 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(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 char *home = getenv("HOME");
1347 char *tigrc_user = getenv("TIGRC_USER");
1348 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, 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 end_update(struct view *view, bool force)
2192 while (!view->ops->read(view, NULL))
2195 set_nonblocking_input(FALSE);
2196 if (view->pipe == stdin)
2204 begin_update(struct view *view, bool refresh)
2207 string_copy(view->cmd, opt_cmd);
2209 /* When running random commands, initially show the
2210 * command in the title. However, it maybe later be
2211 * overwritten if a commit line is selected. */
2212 if (view == VIEW(REQ_VIEW_PAGER))
2213 string_copy(view->ref, view->cmd);
2217 } else if (view == VIEW(REQ_VIEW_TREE)) {
2218 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2219 char path[SIZEOF_STR];
2221 if (strcmp(view->vid, view->id))
2222 opt_path[0] = path[0] = 0;
2223 else if (sq_quote(path, 0, opt_path) >= sizeof(path))
2226 if (!string_format(view->cmd, format, view->id, path))
2229 } else if (!refresh) {
2230 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2231 const char *id = view->id;
2233 if (!string_format(view->cmd, format, id, id, id, id, id))
2236 /* Put the current ref_* value to the view title ref
2237 * member. This is needed by the blob view. Most other
2238 * views sets it automatically after loading because the
2239 * first line is a commit line. */
2240 string_copy_rev(view->ref, view->id);
2243 /* Special case for the pager view. */
2245 view->pipe = opt_pipe;
2248 view->pipe = popen(view->cmd, "r");
2254 set_nonblocking_input(TRUE);
2259 string_copy_rev(view->vid, view->id);
2264 for (i = 0; i < view->lines; i++)
2265 if (view->line[i].data)
2266 free(view->line[i].data);
2272 view->start_time = time(NULL);
2277 #define ITEM_CHUNK_SIZE 256
2279 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2281 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2282 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2284 if (mem == NULL || num_chunks != num_chunks_new) {
2285 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2286 mem = realloc(mem, *size * item_size);
2292 static struct line *
2293 realloc_lines(struct view *view, size_t line_size)
2295 size_t alloc = view->line_alloc;
2296 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2297 sizeof(*view->line));
2303 view->line_alloc = alloc;
2304 view->line_size = line_size;
2309 update_view(struct view *view)
2311 char in_buffer[BUFSIZ];
2312 char out_buffer[BUFSIZ * 2];
2314 /* The number of lines to read. If too low it will cause too much
2315 * redrawing (and possible flickering), if too high responsiveness
2317 unsigned long lines = view->height;
2318 int redraw_from = -1;
2323 /* Only redraw if lines are visible. */
2324 if (view->offset + view->height >= view->lines)
2325 redraw_from = view->lines - view->offset;
2327 /* FIXME: This is probably not perfect for backgrounded views. */
2328 if (!realloc_lines(view, view->lines + lines))
2331 while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) {
2332 size_t linelen = strlen(line);
2335 line[linelen - 1] = 0;
2337 if (opt_iconv != ICONV_NONE) {
2338 ICONV_CONST char *inbuf = line;
2339 size_t inlen = linelen;
2341 char *outbuf = out_buffer;
2342 size_t outlen = sizeof(out_buffer);
2346 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2347 if (ret != (size_t) -1) {
2349 linelen = strlen(out_buffer);
2353 if (!view->ops->read(view, line))
2363 lines = view->lines;
2364 for (digits = 0; lines; digits++)
2367 /* Keep the displayed view in sync with line number scaling. */
2368 if (digits != view->digits) {
2369 view->digits = digits;
2374 if (!view_is_displayed(view))
2377 if (view == VIEW(REQ_VIEW_TREE)) {
2378 /* Clear the view and redraw everything since the tree sorting
2379 * might have rearranged things. */
2382 } else if (redraw_from >= 0) {
2383 /* If this is an incremental update, redraw the previous line
2384 * since for commits some members could have changed when
2385 * loading the main view. */
2386 if (redraw_from > 0)
2389 /* Since revision graph visualization requires knowledge
2390 * about the parent commit, it causes a further one-off
2391 * needed to be redrawn for incremental updates. */
2392 if (redraw_from > 0 && opt_rev_graph)
2395 /* Incrementally draw avoids flickering. */
2396 redraw_view_from(view, redraw_from);
2399 if (view == VIEW(REQ_VIEW_BLAME))
2400 redraw_view_dirty(view);
2402 /* Update the title _after_ the redraw so that if the redraw picks up a
2403 * commit reference in view->ref it'll be available here. */
2404 update_view_title(view);
2407 if (ferror(view->pipe) && errno != 0) {
2408 report("Failed to read: %s", strerror(errno));
2409 end_update(view, TRUE);
2411 } else if (feof(view->pipe)) {
2413 end_update(view, FALSE);
2419 report("Allocation failure");
2420 end_update(view, TRUE);
2424 static struct line *
2425 add_line_data(struct view *view, void *data, enum line_type type)
2427 struct line *line = &view->line[view->lines++];
2429 memset(line, 0, sizeof(*line));
2436 static struct line *
2437 add_line_text(struct view *view, char *data, enum line_type type)
2440 data = strdup(data);
2442 return data ? add_line_data(view, data, type) : NULL;
2451 OPEN_DEFAULT = 0, /* Use default view switching. */
2452 OPEN_SPLIT = 1, /* Split current view. */
2453 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2454 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2455 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2456 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2460 open_view(struct view *prev, enum request request, enum open_flags flags)
2462 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2463 bool split = !!(flags & OPEN_SPLIT);
2464 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH));
2465 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2466 struct view *view = VIEW(request);
2467 int nviews = displayed_views();
2468 struct view *base_view = display[0];
2470 if (view == prev && nviews == 1 && !reload) {
2471 report("Already in %s view", view->name);
2475 if (view->git_dir && !opt_git_dir[0]) {
2476 report("The %s view is disabled in pager view", view->name);
2484 } else if (!nomaximize) {
2485 /* Maximize the current view. */
2486 memset(display, 0, sizeof(display));
2488 display[current_view] = view;
2491 /* Resize the view when switching between split- and full-screen,
2492 * or when switching between two different full-screen views. */
2493 if (nviews != displayed_views() ||
2494 (nviews == 1 && base_view != display[0]))
2498 end_update(view, TRUE);
2500 if (view->ops->open) {
2501 if (!view->ops->open(view)) {
2502 report("Failed to load %s view", view->name);
2506 } else if ((reload || strcmp(view->vid, view->id)) &&
2507 !begin_update(view, flags & OPEN_REFRESH)) {
2508 report("Failed to load %s view", view->name);
2512 if (split && prev->lineno - prev->offset >= prev->height) {
2513 /* Take the title line into account. */
2514 int lines = prev->lineno - prev->offset - prev->height + 1;
2516 /* Scroll the view that was split if the current line is
2517 * outside the new limited view. */
2518 do_scroll_view(prev, lines);
2521 if (prev && view != prev) {
2522 if (split && !backgrounded) {
2523 /* "Blur" the previous view. */
2524 update_view_title(prev);
2527 view->parent = prev;
2530 if (view->pipe && view->lines == 0) {
2531 /* Clear the old view and let the incremental updating refill
2540 /* If the view is backgrounded the above calls to report()
2541 * won't redraw the view title. */
2543 update_view_title(view);
2547 run_confirm(const char *cmd, const char *prompt)
2549 bool confirmation = prompt_yesno(prompt);
2554 return confirmation;
2558 open_external_viewer(const char *cmd)
2560 def_prog_mode(); /* save current tty modes */
2561 endwin(); /* restore original tty modes */
2563 fprintf(stderr, "Press Enter to continue");
2570 open_mergetool(const char *file)
2572 char cmd[SIZEOF_STR];
2573 char file_sq[SIZEOF_STR];
2575 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2576 string_format(cmd, "git mergetool %s", file_sq)) {
2577 open_external_viewer(cmd);
2582 open_editor(bool from_root, const char *file)
2584 char cmd[SIZEOF_STR];
2585 char file_sq[SIZEOF_STR];
2587 char *prefix = from_root ? opt_cdup : "";
2589 editor = getenv("GIT_EDITOR");
2590 if (!editor && *opt_editor)
2591 editor = opt_editor;
2593 editor = getenv("VISUAL");
2595 editor = getenv("EDITOR");
2599 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2600 string_format(cmd, "%s %s%s", editor, prefix, file_sq)) {
2601 open_external_viewer(cmd);
2606 open_run_request(enum request request)
2608 struct run_request *req = get_run_request(request);
2609 char buf[SIZEOF_STR * 2];
2614 report("Unknown run request");
2622 char *next = strstr(cmd, "%(");
2623 int len = next - cmd;
2630 } else if (!strncmp(next, "%(head)", 7)) {
2633 } else if (!strncmp(next, "%(commit)", 9)) {
2636 } else if (!strncmp(next, "%(blob)", 7)) {
2640 report("Unknown replacement in run request: `%s`", req->cmd);
2644 if (!string_format_from(buf, &bufpos, "%.*s%s", len, cmd, value))
2648 next = strchr(next, ')') + 1;
2652 open_external_viewer(buf);
2656 * User request switch noodle
2660 view_driver(struct view *view, enum request request)
2664 if (request == REQ_NONE) {
2669 if (request > REQ_NONE) {
2670 open_run_request(request);
2671 /* FIXME: When all views can refresh always do this. */
2672 if (view == VIEW(REQ_VIEW_STATUS) ||
2673 view == VIEW(REQ_VIEW_MAIN) ||
2674 view == VIEW(REQ_VIEW_LOG) ||
2675 view == VIEW(REQ_VIEW_STAGE))
2676 request = REQ_REFRESH;
2681 if (view && view->lines) {
2682 request = view->ops->request(view, request, &view->line[view->lineno]);
2683 if (request == REQ_NONE)
2690 case REQ_MOVE_PAGE_UP:
2691 case REQ_MOVE_PAGE_DOWN:
2692 case REQ_MOVE_FIRST_LINE:
2693 case REQ_MOVE_LAST_LINE:
2694 move_view(view, request);
2697 case REQ_SCROLL_LINE_DOWN:
2698 case REQ_SCROLL_LINE_UP:
2699 case REQ_SCROLL_PAGE_DOWN:
2700 case REQ_SCROLL_PAGE_UP:
2701 scroll_view(view, request);
2704 case REQ_VIEW_BLAME:
2706 report("No file chosen, press %s to open tree view",
2707 get_key(REQ_VIEW_TREE));
2710 open_view(view, request, OPEN_DEFAULT);
2715 report("No file chosen, press %s to open tree view",
2716 get_key(REQ_VIEW_TREE));
2719 open_view(view, request, OPEN_DEFAULT);
2722 case REQ_VIEW_PAGER:
2723 if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2724 report("No pager content, press %s to run command from prompt",
2725 get_key(REQ_PROMPT));
2728 open_view(view, request, OPEN_DEFAULT);
2731 case REQ_VIEW_STAGE:
2732 if (!VIEW(REQ_VIEW_STAGE)->lines) {
2733 report("No stage content, press %s to open the status view and choose file",
2734 get_key(REQ_VIEW_STATUS));
2737 open_view(view, request, OPEN_DEFAULT);
2740 case REQ_VIEW_STATUS:
2741 if (opt_is_inside_work_tree == FALSE) {
2742 report("The status view requires a working tree");
2745 open_view(view, request, OPEN_DEFAULT);
2753 open_view(view, request, OPEN_DEFAULT);
2758 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2760 if ((view == VIEW(REQ_VIEW_DIFF) &&
2761 view->parent == VIEW(REQ_VIEW_MAIN)) ||
2762 (view == VIEW(REQ_VIEW_DIFF) &&
2763 view->parent == VIEW(REQ_VIEW_BLAME)) ||
2764 (view == VIEW(REQ_VIEW_STAGE) &&
2765 view->parent == VIEW(REQ_VIEW_STATUS)) ||
2766 (view == VIEW(REQ_VIEW_BLOB) &&
2767 view->parent == VIEW(REQ_VIEW_TREE))) {
2770 view = view->parent;
2771 line = view->lineno;
2772 move_view(view, request);
2773 if (view_is_displayed(view))
2774 update_view_title(view);
2775 if (line != view->lineno)
2776 view->ops->request(view, REQ_ENTER,
2777 &view->line[view->lineno]);
2780 move_view(view, request);
2786 int nviews = displayed_views();
2787 int next_view = (current_view + 1) % nviews;
2789 if (next_view == current_view) {
2790 report("Only one view is displayed");
2794 current_view = next_view;
2795 /* Blur out the title of the previous view. */
2796 update_view_title(view);
2801 report("Refreshing is not yet supported for the %s view", view->name);
2805 if (displayed_views() == 2)
2806 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
2809 case REQ_TOGGLE_LINENO:
2810 opt_line_number = !opt_line_number;
2814 case REQ_TOGGLE_DATE:
2815 opt_date = !opt_date;
2819 case REQ_TOGGLE_AUTHOR:
2820 opt_author = !opt_author;
2824 case REQ_TOGGLE_REV_GRAPH:
2825 opt_rev_graph = !opt_rev_graph;
2829 case REQ_TOGGLE_REFS:
2830 opt_show_refs = !opt_show_refs;
2835 case REQ_SEARCH_BACK:
2836 search_view(view, request);
2841 find_next(view, request);
2844 case REQ_STOP_LOADING:
2845 for (i = 0; i < ARRAY_SIZE(views); i++) {
2848 report("Stopped loading the %s view", view->name),
2849 end_update(view, TRUE);
2853 case REQ_SHOW_VERSION:
2854 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
2857 case REQ_SCREEN_RESIZE:
2860 case REQ_SCREEN_REDRAW:
2865 report("Nothing to edit");
2869 report("Nothing to enter");
2872 case REQ_VIEW_CLOSE:
2873 /* XXX: Mark closed views by letting view->parent point to the
2874 * view itself. Parents to closed view should never be
2877 view->parent->parent != view->parent) {
2878 memset(display, 0, sizeof(display));
2880 display[current_view] = view->parent;
2881 view->parent = view;
2892 /* An unknown key will show most commonly used commands. */
2893 report("Unknown key, press 'h' for help");
2906 pager_draw(struct view *view, struct line *line, unsigned int lineno)
2908 char *text = line->data;
2910 if (opt_line_number && draw_lineno(view, lineno))
2913 draw_text(view, line->type, text, TRUE);
2918 add_describe_ref(char *buf, size_t *bufpos, char *commit_id, const char *sep)
2920 char refbuf[SIZEOF_STR];
2924 if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id))
2927 pipe = popen(refbuf, "r");
2931 if ((ref = fgets(refbuf, sizeof(refbuf), pipe)))
2932 ref = chomp_string(ref);
2938 /* This is the only fatal call, since it can "corrupt" the buffer. */
2939 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
2946 add_pager_refs(struct view *view, struct line *line)
2948 char buf[SIZEOF_STR];
2949 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
2951 size_t bufpos = 0, refpos = 0;
2952 const char *sep = "Refs: ";
2953 bool is_tag = FALSE;
2955 assert(line->type == LINE_COMMIT);
2957 refs = get_refs(commit_id);
2959 if (view == VIEW(REQ_VIEW_DIFF))
2960 goto try_add_describe_ref;
2965 struct ref *ref = refs[refpos];
2966 char *fmt = ref->tag ? "%s[%s]" :
2967 ref->remote ? "%s<%s>" : "%s%s";
2969 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
2974 } while (refs[refpos++]->next);
2976 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
2977 try_add_describe_ref:
2978 /* Add <tag>-g<commit_id> "fake" reference. */
2979 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
2986 if (!realloc_lines(view, view->line_size + 1))
2989 add_line_text(view, buf, LINE_PP_REFS);
2993 pager_read(struct view *view, char *data)
3000 line = add_line_text(view, data, get_line_type(data));
3004 if (line->type == LINE_COMMIT &&
3005 (view == VIEW(REQ_VIEW_DIFF) ||
3006 view == VIEW(REQ_VIEW_LOG)))
3007 add_pager_refs(view, line);
3013 pager_request(struct view *view, enum request request, struct line *line)
3017 if (request != REQ_ENTER)
3020 if (line->type == LINE_COMMIT &&
3021 (view == VIEW(REQ_VIEW_LOG) ||
3022 view == VIEW(REQ_VIEW_PAGER))) {
3023 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3027 /* Always scroll the view even if it was split. That way
3028 * you can use Enter to scroll through the log view and
3029 * split open each commit diff. */
3030 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3032 /* FIXME: A minor workaround. Scrolling the view will call report("")
3033 * but if we are scrolling a non-current view this won't properly
3034 * update the view title. */
3036 update_view_title(view);
3042 pager_grep(struct view *view, struct line *line)
3045 char *text = line->data;
3050 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3057 pager_select(struct view *view, struct line *line)
3059 if (line->type == LINE_COMMIT) {
3060 char *text = (char *)line->data + STRING_SIZE("commit ");
3062 if (view != VIEW(REQ_VIEW_PAGER))
3063 string_copy_rev(view->ref, text);
3064 string_copy_rev(ref_commit, text);
3068 static struct view_ops pager_ops = {
3079 log_request(struct view *view, enum request request, struct line *line)
3084 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3087 return pager_request(view, request, line);
3091 static struct view_ops log_ops = {
3107 help_open(struct view *view)
3110 int lines = ARRAY_SIZE(req_info) + 2;
3113 if (view->lines > 0)
3116 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3117 if (!req_info[i].request)
3120 lines += run_requests + 1;
3122 view->line = calloc(lines, sizeof(*view->line));
3126 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3128 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3131 if (req_info[i].request == REQ_NONE)
3134 if (!req_info[i].request) {
3135 add_line_text(view, "", LINE_DEFAULT);
3136 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3140 key = get_key(req_info[i].request);
3142 key = "(no key defined)";
3144 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
3147 add_line_text(view, buf, LINE_DEFAULT);
3151 add_line_text(view, "", LINE_DEFAULT);
3152 add_line_text(view, "External commands:", LINE_DEFAULT);
3155 for (i = 0; i < run_requests; i++) {
3156 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3162 key = get_key_name(req->key);
3164 key = "(no key defined)";
3166 if (!string_format(buf, " %-10s %-14s `%s`",
3167 keymap_table[req->keymap].name,
3171 add_line_text(view, buf, LINE_DEFAULT);
3177 static struct view_ops help_ops = {
3192 struct tree_stack_entry {
3193 struct tree_stack_entry *prev; /* Entry below this in the stack */
3194 unsigned long lineno; /* Line number to restore */
3195 char *name; /* Position of name in opt_path */
3198 /* The top of the path stack. */
3199 static struct tree_stack_entry *tree_stack = NULL;
3200 unsigned long tree_lineno = 0;
3203 pop_tree_stack_entry(void)
3205 struct tree_stack_entry *entry = tree_stack;
3207 tree_lineno = entry->lineno;
3209 tree_stack = entry->prev;
3214 push_tree_stack_entry(char *name, unsigned long lineno)
3216 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3217 size_t pathlen = strlen(opt_path);
3222 entry->prev = tree_stack;
3223 entry->name = opt_path + pathlen;
3226 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3227 pop_tree_stack_entry();
3231 /* Move the current line to the first tree entry. */
3233 entry->lineno = lineno;
3236 /* Parse output from git-ls-tree(1):
3238 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3239 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3240 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3241 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3244 #define SIZEOF_TREE_ATTR \
3245 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3247 #define TREE_UP_FORMAT "040000 tree %s\t.."
3250 tree_compare_entry(enum line_type type1, char *name1,
3251 enum line_type type2, char *name2)
3253 if (type1 != type2) {
3254 if (type1 == LINE_TREE_DIR)
3259 return strcmp(name1, name2);
3263 tree_path(struct line *line)
3265 char *path = line->data;
3267 return path + SIZEOF_TREE_ATTR;
3271 tree_read(struct view *view, char *text)
3273 size_t textlen = text ? strlen(text) : 0;
3274 char buf[SIZEOF_STR];
3276 enum line_type type;
3277 bool first_read = view->lines == 0;
3281 if (textlen <= SIZEOF_TREE_ATTR)
3284 type = text[STRING_SIZE("100644 ")] == 't'
3285 ? LINE_TREE_DIR : LINE_TREE_FILE;
3288 /* Add path info line */
3289 if (!string_format(buf, "Directory path /%s", opt_path) ||
3290 !realloc_lines(view, view->line_size + 1) ||
3291 !add_line_text(view, buf, LINE_DEFAULT))
3294 /* Insert "link" to parent directory. */
3296 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
3297 !realloc_lines(view, view->line_size + 1) ||
3298 !add_line_text(view, buf, LINE_TREE_DIR))
3303 /* Strip the path part ... */
3305 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3306 size_t striplen = strlen(opt_path);
3307 char *path = text + SIZEOF_TREE_ATTR;
3309 if (pathlen > striplen)
3310 memmove(path, path + striplen,
3311 pathlen - striplen + 1);
3314 /* Skip "Directory ..." and ".." line. */
3315 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
3316 struct line *line = &view->line[pos];
3317 char *path1 = tree_path(line);
3318 char *path2 = text + SIZEOF_TREE_ATTR;
3319 int cmp = tree_compare_entry(line->type, path1, type, path2);
3324 text = strdup(text);
3328 if (view->lines > pos)
3329 memmove(&view->line[pos + 1], &view->line[pos],
3330 (view->lines - pos) * sizeof(*line));
3332 line = &view->line[pos];
3339 if (!add_line_text(view, text, type))
3342 if (tree_lineno > view->lineno) {
3343 view->lineno = tree_lineno;
3351 tree_request(struct view *view, enum request request, struct line *line)
3353 enum open_flags flags;
3355 if (request == REQ_VIEW_BLAME) {
3356 char *filename = tree_path(line);
3358 if (line->type == LINE_TREE_DIR) {
3359 report("Cannot show blame for directory %s", opt_path);
3363 string_copy(opt_ref, view->vid);
3364 string_format(opt_file, "%s%s", opt_path, filename);
3367 if (request == REQ_TREE_PARENT) {
3370 request = REQ_ENTER;
3371 line = &view->line[1];
3373 /* quit view if at top of tree */
3374 return REQ_VIEW_CLOSE;
3377 if (request != REQ_ENTER)
3380 /* Cleanup the stack if the tree view is at a different tree. */
3381 while (!*opt_path && tree_stack)
3382 pop_tree_stack_entry();
3384 switch (line->type) {
3386 /* Depending on whether it is a subdir or parent (updir?) link
3387 * mangle the path buffer. */
3388 if (line == &view->line[1] && *opt_path) {
3389 pop_tree_stack_entry();
3392 char *basename = tree_path(line);
3394 push_tree_stack_entry(basename, view->lineno);
3397 /* Trees and subtrees share the same ID, so they are not not
3398 * unique like blobs. */
3399 flags = OPEN_RELOAD;
3400 request = REQ_VIEW_TREE;
3403 case LINE_TREE_FILE:
3404 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3405 request = REQ_VIEW_BLOB;
3412 open_view(view, request, flags);
3413 if (request == REQ_VIEW_TREE) {
3414 view->lineno = tree_lineno;
3421 tree_select(struct view *view, struct line *line)
3423 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3425 if (line->type == LINE_TREE_FILE) {
3426 string_copy_rev(ref_blob, text);
3428 } else if (line->type != LINE_TREE_DIR) {
3432 string_copy_rev(view->ref, text);
3435 static struct view_ops tree_ops = {
3446 blob_read(struct view *view, char *line)
3450 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3453 static struct view_ops blob_ops = {
3466 * Loading the blame view is a two phase job:
3468 * 1. File content is read either using opt_file from the
3469 * filesystem or using git-cat-file.
3470 * 2. Then blame information is incrementally added by
3471 * reading output from git-blame.
3474 struct blame_commit {
3475 char id[SIZEOF_REV]; /* SHA1 ID. */
3476 char title[128]; /* First line of the commit message. */
3477 char author[75]; /* Author of the commit. */
3478 struct tm time; /* Date from the author ident. */
3479 char filename[128]; /* Name of file. */
3483 struct blame_commit *commit;
3484 unsigned int header:1;
3488 #define BLAME_CAT_FILE_CMD "git cat-file blob %s:%s"
3489 #define BLAME_INCREMENTAL_CMD "git blame --incremental %s %s"
3492 blame_open(struct view *view)
3494 char path[SIZEOF_STR];
3495 char ref[SIZEOF_STR] = "";
3497 if (sq_quote(path, 0, opt_file) >= sizeof(path))
3500 if (*opt_ref && sq_quote(ref, 0, opt_ref) >= sizeof(ref))
3504 if (!string_format(view->cmd, BLAME_CAT_FILE_CMD, ref, path))
3507 view->pipe = fopen(opt_file, "r");
3509 !string_format(view->cmd, BLAME_CAT_FILE_CMD, "HEAD", path))
3514 view->pipe = popen(view->cmd, "r");
3518 if (!string_format(view->cmd, BLAME_INCREMENTAL_CMD, ref, path))
3521 string_format(view->ref, "%s ...", opt_file);
3522 string_copy_rev(view->vid, opt_file);
3523 set_nonblocking_input(TRUE);
3528 for (i = 0; i < view->lines; i++)
3529 free(view->line[i].data);
3533 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
3534 view->offset = view->lines = view->lineno = 0;
3536 view->start_time = time(NULL);
3541 static struct blame_commit *
3542 get_blame_commit(struct view *view, const char *id)
3546 for (i = 0; i < view->lines; i++) {
3547 struct blame *blame = view->line[i].data;
3552 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3553 return blame->commit;
3557 struct blame_commit *commit = calloc(1, sizeof(*commit));
3560 string_ncopy(commit->id, id, SIZEOF_REV);
3566 parse_number(char **posref, size_t *number, size_t min, size_t max)
3568 char *pos = *posref;
3571 pos = strchr(pos + 1, ' ');
3572 if (!pos || !isdigit(pos[1]))
3574 *number = atoi(pos + 1);
3575 if (*number < min || *number > max)
3582 static struct blame_commit *
3583 parse_blame_commit(struct view *view, char *text, int *blamed)
3585 struct blame_commit *commit;
3586 struct blame *blame;
3587 char *pos = text + SIZEOF_REV - 1;
3591 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3594 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3595 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3598 commit = get_blame_commit(view, text);
3604 struct line *line = &view->line[lineno + group - 1];
3607 blame->commit = commit;
3608 blame->header = !group;
3616 blame_read_file(struct view *view, char *line)
3621 if (view->lines > 0)
3622 pipe = popen(view->cmd, "r");
3623 else if (!view->parent)
3624 die("No blame exist for %s", view->vid);
3627 report("Failed to load blame data");
3636 size_t linelen = strlen(line);
3637 struct blame *blame = malloc(sizeof(*blame) + linelen);
3639 blame->commit = NULL;
3640 strncpy(blame->text, line, linelen);
3641 blame->text[linelen] = 0;
3642 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3647 match_blame_header(const char *name, char **line)
3649 size_t namelen = strlen(name);
3650 bool matched = !strncmp(name, *line, namelen);
3659 blame_read(struct view *view, char *line)
3661 static struct blame_commit *commit = NULL;
3662 static int blamed = 0;
3663 static time_t author_time;
3666 return blame_read_file(view, line);
3672 string_format(view->ref, "%s", view->vid);
3673 if (view_is_displayed(view)) {
3674 update_view_title(view);
3675 redraw_view_from(view, 0);
3681 commit = parse_blame_commit(view, line, &blamed);
3682 string_format(view->ref, "%s %2d%%", view->vid,
3683 blamed * 100 / view->lines);
3685 } else if (match_blame_header("author ", &line)) {
3686 string_ncopy(commit->author, line, strlen(line));
3688 } else if (match_blame_header("author-time ", &line)) {
3689 author_time = (time_t) atol(line);
3691 } else if (match_blame_header("author-tz ", &line)) {
3694 tz = ('0' - line[1]) * 60 * 60 * 10;
3695 tz += ('0' - line[2]) * 60 * 60;
3696 tz += ('0' - line[3]) * 60;
3697 tz += ('0' - line[4]) * 60;
3703 gmtime_r(&author_time, &commit->time);
3705 } else if (match_blame_header("summary ", &line)) {
3706 string_ncopy(commit->title, line, strlen(line));
3708 } else if (match_blame_header("filename ", &line)) {
3709 string_ncopy(commit->filename, line, strlen(line));
3717 blame_draw(struct view *view, struct line *line, unsigned int lineno)
3719 struct blame *blame = line->data;
3720 struct tm *time = NULL;
3721 char *id = NULL, *author = NULL;
3723 if (blame->commit && *blame->commit->filename) {
3724 id = blame->commit->id;
3725 author = blame->commit->author;
3726 time = &blame->commit->time;
3729 if (opt_date && draw_date(view, time))
3733 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
3736 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
3739 if (draw_lineno(view, lineno))
3742 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
3747 blame_request(struct view *view, enum request request, struct line *line)
3749 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3750 struct blame *blame = line->data;
3754 if (!blame->commit) {
3755 report("No commit loaded yet");
3759 if (!strcmp(blame->commit->id, NULL_ID)) {
3760 char path[SIZEOF_STR];
3762 if (sq_quote(path, 0, view->vid) >= sizeof(path))
3764 string_format(opt_cmd, "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s 2>/dev/null", path);
3767 open_view(view, REQ_VIEW_DIFF, flags);
3778 blame_grep(struct view *view, struct line *line)
3780 struct blame *blame = line->data;
3781 struct blame_commit *commit = blame->commit;
3784 #define MATCH(text, on) \
3785 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3788 char buf[DATE_COLS + 1];
3790 if (MATCH(commit->title, 1) ||
3791 MATCH(commit->author, opt_author) ||
3792 MATCH(commit->id, opt_date))
3795 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
3800 return MATCH(blame->text, 1);
3806 blame_select(struct view *view, struct line *line)
3808 struct blame *blame = line->data;
3809 struct blame_commit *commit = blame->commit;
3814 if (!strcmp(commit->id, NULL_ID))
3815 string_ncopy(ref_commit, "HEAD", 4);
3817 string_copy_rev(ref_commit, commit->id);
3820 static struct view_ops blame_ops = {
3838 char rev[SIZEOF_REV];
3839 char name[SIZEOF_STR];
3843 char rev[SIZEOF_REV];
3844 char name[SIZEOF_STR];
3848 static char status_onbranch[SIZEOF_STR];
3849 static struct status stage_status;
3850 static enum line_type stage_line_type;
3851 static size_t stage_chunks;
3852 static int *stage_chunk;
3854 /* This should work even for the "On branch" line. */
3856 status_has_none(struct view *view, struct line *line)
3858 return line < view->line + view->lines && !line[1].data;
3861 /* Get fields from the diff line:
3862 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3865 status_get_diff(struct status *file, char *buf, size_t bufsize)
3867 char *old_mode = buf + 1;
3868 char *new_mode = buf + 8;
3869 char *old_rev = buf + 15;
3870 char *new_rev = buf + 56;
3871 char *status = buf + 97;
3874 old_mode[-1] != ':' ||
3875 new_mode[-1] != ' ' ||
3876 old_rev[-1] != ' ' ||
3877 new_rev[-1] != ' ' ||
3881 file->status = *status;
3883 string_copy_rev(file->old.rev, old_rev);
3884 string_copy_rev(file->new.rev, new_rev);
3886 file->old.mode = strtoul(old_mode, NULL, 8);
3887 file->new.mode = strtoul(new_mode, NULL, 8);
3889 file->old.name[0] = file->new.name[0] = 0;
3895 status_run(struct view *view, const char cmd[], char status, enum line_type type)
3897 struct status *file = NULL;
3898 struct status *unmerged = NULL;
3899 char buf[SIZEOF_STR * 4];
3903 pipe = popen(cmd, "r");
3907 add_line_data(view, NULL, type);
3909 while (!feof(pipe) && !ferror(pipe)) {
3913 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3916 bufsize += readsize;
3918 /* Process while we have NUL chars. */
3919 while ((sep = memchr(buf, 0, bufsize))) {
3920 size_t sepsize = sep - buf + 1;
3923 if (!realloc_lines(view, view->line_size + 1))
3926 file = calloc(1, sizeof(*file));
3930 add_line_data(view, file, type);
3933 /* Parse diff info part. */
3935 file->status = status;
3937 string_copy(file->old.rev, NULL_ID);
3939 } else if (!file->status) {
3940 if (!status_get_diff(file, buf, sepsize))
3944 memmove(buf, sep + 1, bufsize);
3946 sep = memchr(buf, 0, bufsize);
3949 sepsize = sep - buf + 1;
3951 /* Collapse all 'M'odified entries that
3952 * follow a associated 'U'nmerged entry.
3954 if (file->status == 'U') {
3957 } else if (unmerged) {
3958 int collapse = !strcmp(buf, unmerged->new.name);
3969 /* Grab the old name for rename/copy. */
3970 if (!*file->old.name &&
3971 (file->status == 'R' || file->status == 'C')) {
3972 sepsize = sep - buf + 1;
3973 string_ncopy(file->old.name, buf, sepsize);
3975 memmove(buf, sep + 1, bufsize);
3977 sep = memchr(buf, 0, bufsize);
3980 sepsize = sep - buf + 1;
3983 /* git-ls-files just delivers a NUL separated
3984 * list of file names similar to the second half
3985 * of the git-diff-* output. */
3986 string_ncopy(file->new.name, buf, sepsize);
3987 if (!*file->old.name)
3988 string_copy(file->old.name, file->new.name);
3990 memmove(buf, sep + 1, bufsize);
4001 if (!view->line[view->lines - 1].data)
4002 add_line_data(view, NULL, LINE_STAT_NONE);
4008 /* Don't show unmerged entries in the staged section. */
4009 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD"
4010 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
4011 #define STATUS_LIST_OTHER_CMD \
4012 "git ls-files -z --others --exclude-standard"
4013 #define STATUS_LIST_NO_HEAD_CMD \
4014 "git ls-files -z --cached --exclude-standard"
4016 #define STATUS_DIFF_INDEX_SHOW_CMD \
4017 "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null"
4019 #define STATUS_DIFF_FILES_SHOW_CMD \
4020 "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null"
4022 #define STATUS_DIFF_NO_HEAD_SHOW_CMD \
4023 "git diff --no-color --patch-with-stat /dev/null %s 2>/dev/null"
4025 /* First parse staged info using git-diff-index(1), then parse unstaged
4026 * info using git-diff-files(1), and finally untracked files using
4027 * git-ls-files(1). */
4029 status_open(struct view *view)
4031 unsigned long prev_lineno = view->lineno;
4034 for (i = 0; i < view->lines; i++)
4035 free(view->line[i].data);
4037 view->lines = view->line_alloc = view->line_size = view->lineno = 0;
4040 if (!realloc_lines(view, view->line_size + 7))
4043 add_line_data(view, NULL, LINE_STAT_HEAD);
4045 string_copy(status_onbranch, "Initial commit");
4046 else if (!*opt_head)
4047 string_copy(status_onbranch, "Not currently on any branch");
4048 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4051 system("git update-index -q --refresh >/dev/null 2>/dev/null");
4054 if (!status_run(view, STATUS_LIST_NO_HEAD_CMD, 'A', LINE_STAT_STAGED))
4056 } else if (!status_run(view, STATUS_DIFF_INDEX_CMD, 0, LINE_STAT_STAGED)) {
4060 if (!status_run(view, STATUS_DIFF_FILES_CMD, 0, LINE_STAT_UNSTAGED) ||
4061 !status_run(view, STATUS_LIST_OTHER_CMD, '?', LINE_STAT_UNTRACKED))
4064 /* If all went well restore the previous line number to stay in
4065 * the context or select a line with something that can be
4067 if (prev_lineno >= view->lines)
4068 prev_lineno = view->lines - 1;
4069 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4071 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4074 /* If the above fails, always skip the "On branch" line. */
4075 if (prev_lineno < view->lines)
4076 view->lineno = prev_lineno;
4080 if (view->lineno < view->offset)
4081 view->offset = view->lineno;
4082 else if (view->offset + view->height <= view->lineno)
4083 view->offset = view->lineno - view->height + 1;
4089 status_draw(struct view *view, struct line *line, unsigned int lineno)
4091 struct status *status = line->data;
4092 enum line_type type;
4096 switch (line->type) {
4097 case LINE_STAT_STAGED:
4098 type = LINE_STAT_SECTION;
4099 text = "Changes to be committed:";
4102 case LINE_STAT_UNSTAGED:
4103 type = LINE_STAT_SECTION;
4104 text = "Changed but not updated:";
4107 case LINE_STAT_UNTRACKED:
4108 type = LINE_STAT_SECTION;
4109 text = "Untracked files:";
4112 case LINE_STAT_NONE:
4113 type = LINE_DEFAULT;
4114 text = " (no files)";
4117 case LINE_STAT_HEAD:
4118 type = LINE_STAT_HEAD;
4119 text = status_onbranch;
4126 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4128 buf[0] = status->status;
4129 if (draw_text(view, line->type, buf, TRUE))
4131 type = LINE_DEFAULT;
4132 text = status->new.name;
4135 draw_text(view, type, text, TRUE);
4140 status_enter(struct view *view, struct line *line)
4142 struct status *status = line->data;
4143 char oldpath[SIZEOF_STR] = "";
4144 char newpath[SIZEOF_STR] = "";
4147 enum open_flags split;
4149 if (line->type == LINE_STAT_NONE ||
4150 (!status && line[1].type == LINE_STAT_NONE)) {
4151 report("No file to diff");
4156 if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath))
4158 /* Diffs for unmerged entries are empty when pasing the
4159 * new path, so leave it empty. */
4160 if (status->status != 'U' &&
4161 sq_quote(newpath, 0, status->new.name) >= sizeof(newpath))
4166 line->type != LINE_STAT_UNTRACKED &&
4167 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
4170 switch (line->type) {
4171 case LINE_STAT_STAGED:
4173 if (!string_format_from(opt_cmd, &cmdsize,
4174 STATUS_DIFF_NO_HEAD_SHOW_CMD,
4178 if (!string_format_from(opt_cmd, &cmdsize,
4179 STATUS_DIFF_INDEX_SHOW_CMD,
4185 info = "Staged changes to %s";
4187 info = "Staged changes";
4190 case LINE_STAT_UNSTAGED:
4191 if (!string_format_from(opt_cmd, &cmdsize,
4192 STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath))
4195 info = "Unstaged changes to %s";
4197 info = "Unstaged changes";
4200 case LINE_STAT_UNTRACKED:
4205 report("No file to show");
4209 opt_pipe = fopen(status->new.name, "r");
4210 info = "Untracked file %s";
4213 case LINE_STAT_HEAD:
4217 die("line type %d not handled in switch", line->type);
4220 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4221 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | split);
4222 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4224 stage_status = *status;
4226 memset(&stage_status, 0, sizeof(stage_status));
4229 stage_line_type = line->type;
4231 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4238 status_exists(struct status *status, enum line_type type)
4240 struct view *view = VIEW(REQ_VIEW_STATUS);
4243 for (line = view->line; line < view->line + view->lines; line++) {
4244 struct status *pos = line->data;
4246 if (line->type == type && pos &&
4247 !strcmp(status->new.name, pos->new.name))
4256 status_update_prepare(enum line_type type)
4258 char cmd[SIZEOF_STR];
4262 type != LINE_STAT_UNTRACKED &&
4263 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4267 case LINE_STAT_STAGED:
4268 string_add(cmd, cmdsize, "git update-index -z --index-info");
4271 case LINE_STAT_UNSTAGED:
4272 case LINE_STAT_UNTRACKED:
4273 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
4277 die("line type %d not handled in switch", type);
4280 return popen(cmd, "w");
4284 status_update_write(FILE *pipe, struct status *status, enum line_type type)
4286 char buf[SIZEOF_STR];
4291 case LINE_STAT_STAGED:
4292 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4295 status->old.name, 0))
4299 case LINE_STAT_UNSTAGED:
4300 case LINE_STAT_UNTRACKED:
4301 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4306 die("line type %d not handled in switch", type);
4309 while (!ferror(pipe) && written < bufsize) {
4310 written += fwrite(buf + written, 1, bufsize - written, pipe);
4313 return written == bufsize;
4317 status_update_file(struct status *status, enum line_type type)
4319 FILE *pipe = status_update_prepare(type);
4325 result = status_update_write(pipe, status, type);
4331 status_update_files(struct view *view, struct line *line)
4333 FILE *pipe = status_update_prepare(line->type);
4335 struct line *pos = view->line + view->lines;
4342 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4345 for (file = 0, done = 0; result && file < files; line++, file++) {
4346 int almost_done = file * 100 / files;
4348 if (almost_done > done) {
4350 string_format(view->ref, "updating file %u of %u (%d%% done)",
4352 update_view_title(view);
4354 result = status_update_write(pipe, line->data, line->type);
4362 status_update(struct view *view)
4364 struct line *line = &view->line[view->lineno];
4366 assert(view->lines);
4369 /* This should work even for the "On branch" line. */
4370 if (line < view->line + view->lines && !line[1].data) {
4371 report("Nothing to update");
4375 if (!status_update_files(view, line + 1)) {
4376 report("Failed to update file status");
4380 } else if (!status_update_file(line->data, line->type)) {
4381 report("Failed to update file status");
4389 status_checkout(struct status *status, enum line_type type, bool has_none)
4391 if (!status || type != LINE_STAT_UNSTAGED) {
4392 if (type == LINE_STAT_STAGED) {
4393 report("Cannot checkout staged files");
4394 } else if (type == LINE_STAT_UNTRACKED) {
4395 report("Cannot checkout untracked files");
4396 } else if (has_none) {
4397 report("Nothing to checkout");
4399 report("Cannot checkout multiple files");
4404 char cmd[SIZEOF_STR];
4405 char file_sq[SIZEOF_STR];
4407 if (sq_quote(file_sq, 0, status->old.name) >= sizeof(file_sq) ||
4408 !string_format(cmd, "git checkout %s%s", opt_cdup, file_sq))
4411 return run_confirm(cmd, "Are you sure you want to overwrite any changes?");
4416 status_request(struct view *view, enum request request, struct line *line)
4418 struct status *status = line->data;
4421 case REQ_STATUS_UPDATE:
4422 if (!status_update(view))
4426 case REQ_STATUS_CHECKOUT:
4427 if (!status_checkout(status, line->type, status_has_none(view, line)))
4431 case REQ_STATUS_MERGE:
4432 if (!status || status->status != 'U') {
4433 report("Merging only possible for files with unmerged status ('U').");
4436 open_mergetool(status->new.name);
4443 open_editor(status->status != '?', status->new.name);
4446 case REQ_VIEW_BLAME:
4448 string_copy(opt_file, status->new.name);
4454 /* After returning the status view has been split to
4455 * show the stage view. No further reloading is
4457 status_enter(view, line);
4461 /* Simply reload the view. */
4468 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4474 status_select(struct view *view, struct line *line)
4476 struct status *status = line->data;
4477 char file[SIZEOF_STR] = "all files";
4481 if (status && !string_format(file, "'%s'", status->new.name))
4484 if (!status && line[1].type == LINE_STAT_NONE)
4487 switch (line->type) {
4488 case LINE_STAT_STAGED:
4489 text = "Press %s to unstage %s for commit";
4492 case LINE_STAT_UNSTAGED:
4493 text = "Press %s to stage %s for commit";
4496 case LINE_STAT_UNTRACKED:
4497 text = "Press %s to stage %s for addition";
4500 case LINE_STAT_HEAD:
4501 case LINE_STAT_NONE:
4502 text = "Nothing to update";
4506 die("line type %d not handled in switch", line->type);
4509 if (status && status->status == 'U') {
4510 text = "Press %s to resolve conflict in %s";
4511 key = get_key(REQ_STATUS_MERGE);
4514 key = get_key(REQ_STATUS_UPDATE);
4517 string_format(view->ref, text, key, file);
4521 status_grep(struct view *view, struct line *line)
4523 struct status *status = line->data;
4524 enum { S_STATUS, S_NAME, S_END } state;
4531 for (state = S_STATUS; state < S_END; state++) {
4535 case S_NAME: text = status->new.name; break;
4537 buf[0] = status->status;
4545 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4552 static struct view_ops status_ops = {
4564 stage_diff_line(FILE *pipe, struct line *line)
4566 char *buf = line->data;
4567 size_t bufsize = strlen(buf);
4570 while (!ferror(pipe) && written < bufsize) {
4571 written += fwrite(buf + written, 1, bufsize - written, pipe);
4576 return written == bufsize;
4580 stage_diff_write(FILE *pipe, struct line *line, struct line *end)
4582 while (line < end) {
4583 if (!stage_diff_line(pipe, line++))
4585 if (line->type == LINE_DIFF_CHUNK ||
4586 line->type == LINE_DIFF_HEADER)
4593 static struct line *
4594 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4596 for (; view->line < line; line--)
4597 if (line->type == type)
4604 stage_update_chunk(struct view *view, struct line *chunk)
4606 char cmd[SIZEOF_STR];
4608 struct line *diff_hdr;
4611 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4616 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4619 if (!string_format_from(cmd, &cmdsize,
4620 "git apply --whitespace=nowarn --cached %s - && "
4621 "git update-index -q --unmerged --refresh 2>/dev/null",
4622 stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
4625 pipe = popen(cmd, "w");
4629 if (!stage_diff_write(pipe, diff_hdr, chunk) ||
4630 !stage_diff_write(pipe, chunk, view->line + view->lines))
4635 return chunk ? TRUE : FALSE;
4639 stage_update(struct view *view, struct line *line)
4641 struct line *chunk = NULL;
4643 if (!opt_no_head && stage_line_type != LINE_STAT_UNTRACKED)
4644 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4647 if (!stage_update_chunk(view, chunk)) {
4648 report("Failed to apply chunk");
4652 } else if (!stage_status.status) {
4653 view = VIEW(REQ_VIEW_STATUS);
4655 for (line = view->line; line < view->line + view->lines; line++)
4656 if (line->type == stage_line_type)
4659 if (!status_update_files(view, line + 1)) {
4660 report("Failed to update files");
4664 } else if (!status_update_file(&stage_status, stage_line_type)) {
4665 report("Failed to update file");
4673 stage_next(struct view *view, struct line *line)
4677 if (!stage_chunks) {
4678 static size_t alloc = 0;
4681 for (line = view->line; line < view->line + view->lines; line++) {
4682 if (line->type != LINE_DIFF_CHUNK)
4685 tmp = realloc_items(stage_chunk, &alloc,
4686 stage_chunks, sizeof(*tmp));
4688 report("Allocation failure");
4693 stage_chunk[stage_chunks++] = line - view->line;
4697 for (i = 0; i < stage_chunks; i++) {
4698 if (stage_chunk[i] > view->lineno) {
4699 do_scroll_view(view, stage_chunk[i] - view->lineno);
4700 report("Chunk %d of %d", i + 1, stage_chunks);
4705 report("No next chunk found");
4709 stage_request(struct view *view, enum request request, struct line *line)
4712 case REQ_STATUS_UPDATE:
4713 if (!stage_update(view, line))
4717 case REQ_STATUS_CHECKOUT:
4718 if (!status_checkout(stage_status.status ? &stage_status : NULL,
4719 stage_line_type, FALSE))
4723 case REQ_STAGE_NEXT:
4724 if (stage_line_type == LINE_STAT_UNTRACKED) {
4725 report("File is untracked; press %s to add",
4726 get_key(REQ_STATUS_UPDATE));
4729 stage_next(view, line);
4733 if (!stage_status.new.name[0])
4736 open_editor(stage_status.status != '?', stage_status.new.name);
4740 /* Reload everything ... */
4743 case REQ_VIEW_BLAME:
4744 if (stage_status.new.name[0]) {
4745 string_copy(opt_file, stage_status.new.name);
4751 return pager_request(view, request, line);
4757 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4759 /* Check whether the staged entry still exists, and close the
4760 * stage view if it doesn't. */
4761 if (!status_exists(&stage_status, stage_line_type))
4762 return REQ_VIEW_CLOSE;
4764 if (stage_line_type == LINE_STAT_UNTRACKED)
4765 opt_pipe = fopen(stage_status.new.name, "r");
4766 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
4771 static struct view_ops stage_ops = {
4787 char id[SIZEOF_REV]; /* SHA1 ID. */
4788 char title[128]; /* First line of the commit message. */
4789 char author[75]; /* Author of the commit. */
4790 struct tm time; /* Date from the author ident. */
4791 struct ref **refs; /* Repository references. */
4792 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
4793 size_t graph_size; /* The width of the graph array. */
4794 bool has_parents; /* Rewritten --parents seen. */
4797 /* Size of rev graph with no "padding" columns */
4798 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
4801 struct rev_graph *prev, *next, *parents;
4802 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
4804 struct commit *commit;
4806 unsigned int boundary:1;
4809 /* Parents of the commit being visualized. */
4810 static struct rev_graph graph_parents[4];
4812 /* The current stack of revisions on the graph. */
4813 static struct rev_graph graph_stacks[4] = {
4814 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
4815 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
4816 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
4817 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
4821 graph_parent_is_merge(struct rev_graph *graph)
4823 return graph->parents->size > 1;
4827 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
4829 struct commit *commit = graph->commit;
4831 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
4832 commit->graph[commit->graph_size++] = symbol;
4836 clear_rev_graph(struct rev_graph *graph)
4838 graph->boundary = 0;
4839 graph->size = graph->pos = 0;
4840 graph->commit = NULL;
4841 memset(graph->parents, 0, sizeof(*graph->parents));
4845 done_rev_graph(struct rev_graph *graph)
4847 if (graph_parent_is_merge(graph) &&
4848 graph->pos < graph->size - 1 &&
4849 graph->next->size == graph->size + graph->parents->size - 1) {
4850 size_t i = graph->pos + graph->parents->size - 1;
4852 graph->commit->graph_size = i * 2;
4853 while (i < graph->next->size - 1) {
4854 append_to_rev_graph(graph, ' ');
4855 append_to_rev_graph(graph, '\\');
4860 clear_rev_graph(graph);
4864 push_rev_graph(struct rev_graph *graph, char *parent)
4868 /* "Collapse" duplicate parents lines.
4870 * FIXME: This needs to also update update the drawn graph but
4871 * for now it just serves as a method for pruning graph lines. */
4872 for (i = 0; i < graph->size; i++)
4873 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
4876 if (graph->size < SIZEOF_REVITEMS) {
4877 string_copy_rev(graph->rev[graph->size++], parent);
4882 get_rev_graph_symbol(struct rev_graph *graph)
4886 if (graph->boundary)
4887 symbol = REVGRAPH_BOUND;
4888 else if (graph->parents->size == 0)
4889 symbol = REVGRAPH_INIT;
4890 else if (graph_parent_is_merge(graph))
4891 symbol = REVGRAPH_MERGE;
4892 else if (graph->pos >= graph->size)
4893 symbol = REVGRAPH_BRANCH;
4895 symbol = REVGRAPH_COMMIT;
4901 draw_rev_graph(struct rev_graph *graph)
4904 chtype separator, line;
4906 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
4907 static struct rev_filler fillers[] = {
4913 chtype symbol = get_rev_graph_symbol(graph);
4914 struct rev_filler *filler;
4917 if (opt_line_graphics)
4918 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
4920 filler = &fillers[DEFAULT];
4922 for (i = 0; i < graph->pos; i++) {
4923 append_to_rev_graph(graph, filler->line);
4924 if (graph_parent_is_merge(graph->prev) &&
4925 graph->prev->pos == i)
4926 filler = &fillers[RSHARP];
4928 append_to_rev_graph(graph, filler->separator);
4931 /* Place the symbol for this revision. */
4932 append_to_rev_graph(graph, symbol);
4934 if (graph->prev->size > graph->size)
4935 filler = &fillers[RDIAG];
4937 filler = &fillers[DEFAULT];
4941 for (; i < graph->size; i++) {
4942 append_to_rev_graph(graph, filler->separator);
4943 append_to_rev_graph(graph, filler->line);
4944 if (graph_parent_is_merge(graph->prev) &&
4945 i < graph->prev->pos + graph->parents->size)
4946 filler = &fillers[RSHARP];
4947 if (graph->prev->size > graph->size)
4948 filler = &fillers[LDIAG];
4951 if (graph->prev->size > graph->size) {
4952 append_to_rev_graph(graph, filler->separator);
4953 if (filler->line != ' ')
4954 append_to_rev_graph(graph, filler->line);
4958 /* Prepare the next rev graph */
4960 prepare_rev_graph(struct rev_graph *graph)
4964 /* First, traverse all lines of revisions up to the active one. */
4965 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
4966 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
4969 push_rev_graph(graph->next, graph->rev[graph->pos]);
4972 /* Interleave the new revision parent(s). */
4973 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
4974 push_rev_graph(graph->next, graph->parents->rev[i]);
4976 /* Lastly, put any remaining revisions. */
4977 for (i = graph->pos + 1; i < graph->size; i++)
4978 push_rev_graph(graph->next, graph->rev[i]);
4982 update_rev_graph(struct rev_graph *graph)
4984 /* If this is the finalizing update ... */
4986 prepare_rev_graph(graph);
4988 /* Graph visualization needs a one rev look-ahead,
4989 * so the first update doesn't visualize anything. */
4990 if (!graph->prev->commit)
4993 draw_rev_graph(graph->prev);
4994 done_rev_graph(graph->prev->prev);
5003 main_draw(struct view *view, struct line *line, unsigned int lineno)
5005 struct commit *commit = line->data;
5007 if (!*commit->author)
5010 if (opt_date && draw_date(view, &commit->time))
5014 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5017 if (opt_rev_graph && commit->graph_size &&
5018 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5021 if (opt_show_refs && commit->refs) {
5025 enum line_type type;
5027 if (commit->refs[i]->head)
5028 type = LINE_MAIN_HEAD;
5029 else if (commit->refs[i]->ltag)
5030 type = LINE_MAIN_LOCAL_TAG;
5031 else if (commit->refs[i]->tag)
5032 type = LINE_MAIN_TAG;
5033 else if (commit->refs[i]->tracked)
5034 type = LINE_MAIN_TRACKED;
5035 else if (commit->refs[i]->remote)
5036 type = LINE_MAIN_REMOTE;
5038 type = LINE_MAIN_REF;
5040 if (draw_text(view, type, "[", TRUE) ||
5041 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5042 draw_text(view, type, "]", TRUE))
5045 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5047 } while (commit->refs[i++]->next);
5050 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5054 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5056 main_read(struct view *view, char *line)
5058 static struct rev_graph *graph = graph_stacks;
5059 enum line_type type;
5060 struct commit *commit;
5065 if (!view->lines && !view->parent)
5066 die("No revisions match the given arguments.");
5067 if (view->lines > 0) {
5068 commit = view->line[view->lines - 1].data;
5069 if (!*commit->author) {
5072 graph->commit = NULL;
5075 update_rev_graph(graph);
5077 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5078 clear_rev_graph(&graph_stacks[i]);
5082 type = get_line_type(line);
5083 if (type == LINE_COMMIT) {
5084 commit = calloc(1, sizeof(struct commit));
5088 line += STRING_SIZE("commit ");
5090 graph->boundary = 1;
5094 string_copy_rev(commit->id, line);
5095 commit->refs = get_refs(commit->id);
5096 graph->commit = commit;
5097 add_line_data(view, commit, LINE_MAIN_COMMIT);
5099 while ((line = strchr(line, ' '))) {
5101 push_rev_graph(graph->parents, line);
5102 commit->has_parents = TRUE;
5109 commit = view->line[view->lines - 1].data;
5113 if (commit->has_parents)
5115 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5120 /* Parse author lines where the name may be empty:
5121 * author <email@address.tld> 1138474660 +0100
5123 char *ident = line + STRING_SIZE("author ");
5124 char *nameend = strchr(ident, '<');
5125 char *emailend = strchr(ident, '>');
5127 if (!nameend || !emailend)
5130 update_rev_graph(graph);
5131 graph = graph->next;
5133 *nameend = *emailend = 0;
5134 ident = chomp_string(ident);
5136 ident = chomp_string(nameend + 1);
5141 string_ncopy(commit->author, ident, strlen(ident));
5143 /* Parse epoch and timezone */
5144 if (emailend[1] == ' ') {
5145 char *secs = emailend + 2;
5146 char *zone = strchr(secs, ' ');
5147 time_t time = (time_t) atol(secs);
5149 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5153 tz = ('0' - zone[1]) * 60 * 60 * 10;
5154 tz += ('0' - zone[2]) * 60 * 60;
5155 tz += ('0' - zone[3]) * 60;
5156 tz += ('0' - zone[4]) * 60;
5164 gmtime_r(&time, &commit->time);
5169 /* Fill in the commit title if it has not already been set. */
5170 if (commit->title[0])
5173 /* Require titles to start with a non-space character at the
5174 * offset used by git log. */
5175 if (strncmp(line, " ", 4))
5178 /* Well, if the title starts with a whitespace character,
5179 * try to be forgiving. Otherwise we end up with no title. */
5180 while (isspace(*line))
5184 /* FIXME: More graceful handling of titles; append "..." to
5185 * shortened titles, etc. */
5187 string_ncopy(commit->title, line, strlen(line));
5194 main_request(struct view *view, enum request request, struct line *line)
5196 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5200 open_view(view, REQ_VIEW_DIFF, flags);
5204 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5214 grep_refs(struct ref **refs, regex_t *regex)
5222 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5224 } while (refs[i++]->next);
5230 main_grep(struct view *view, struct line *line)
5232 struct commit *commit = line->data;
5233 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5234 char buf[DATE_COLS + 1];
5237 for (state = S_TITLE; state < S_END; state++) {
5241 case S_TITLE: text = commit->title; break;
5245 text = commit->author;
5250 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5257 if (grep_refs(commit->refs, view->regex) == TRUE)
5264 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5272 main_select(struct view *view, struct line *line)
5274 struct commit *commit = line->data;
5276 string_copy_rev(view->ref, commit->id);
5277 string_copy_rev(ref_commit, view->ref);
5280 static struct view_ops main_ops = {
5292 * Unicode / UTF-8 handling
5294 * NOTE: Much of the following code for dealing with unicode is derived from
5295 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5296 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5299 /* I've (over)annotated a lot of code snippets because I am not entirely
5300 * confident that the approach taken by this small UTF-8 interface is correct.
5304 unicode_width(unsigned long c)
5307 (c <= 0x115f /* Hangul Jamo */
5310 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5312 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5313 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5314 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5315 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5316 || (c >= 0xffe0 && c <= 0xffe6)
5317 || (c >= 0x20000 && c <= 0x2fffd)
5318 || (c >= 0x30000 && c <= 0x3fffd)))
5322 return opt_tab_size;
5327 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5328 * Illegal bytes are set one. */
5329 static const unsigned char utf8_bytes[256] = {
5330 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,
5331 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,
5332 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,
5333 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,
5334 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,
5335 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,
5336 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,
5337 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,
5340 /* Decode UTF-8 multi-byte representation into a unicode character. */
5341 static inline unsigned long
5342 utf8_to_unicode(const char *string, size_t length)
5344 unsigned long unicode;
5348 unicode = string[0];
5351 unicode = (string[0] & 0x1f) << 6;
5352 unicode += (string[1] & 0x3f);
5355 unicode = (string[0] & 0x0f) << 12;
5356 unicode += ((string[1] & 0x3f) << 6);
5357 unicode += (string[2] & 0x3f);
5360 unicode = (string[0] & 0x0f) << 18;
5361 unicode += ((string[1] & 0x3f) << 12);
5362 unicode += ((string[2] & 0x3f) << 6);
5363 unicode += (string[3] & 0x3f);
5366 unicode = (string[0] & 0x0f) << 24;
5367 unicode += ((string[1] & 0x3f) << 18);
5368 unicode += ((string[2] & 0x3f) << 12);
5369 unicode += ((string[3] & 0x3f) << 6);
5370 unicode += (string[4] & 0x3f);
5373 unicode = (string[0] & 0x01) << 30;
5374 unicode += ((string[1] & 0x3f) << 24);
5375 unicode += ((string[2] & 0x3f) << 18);
5376 unicode += ((string[3] & 0x3f) << 12);
5377 unicode += ((string[4] & 0x3f) << 6);
5378 unicode += (string[5] & 0x3f);
5381 die("Invalid unicode length");
5384 /* Invalid characters could return the special 0xfffd value but NUL
5385 * should be just as good. */
5386 return unicode > 0xffff ? 0 : unicode;
5389 /* Calculates how much of string can be shown within the given maximum width
5390 * and sets trimmed parameter to non-zero value if all of string could not be
5391 * shown. If the reserve flag is TRUE, it will reserve at least one
5392 * trailing character, which can be useful when drawing a delimiter.
5394 * Returns the number of bytes to output from string to satisfy max_width. */
5396 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5398 const char *start = string;
5399 const char *end = strchr(string, '\0');
5400 unsigned char last_bytes = 0;
5401 size_t last_ucwidth = 0;
5406 while (string < end) {
5407 int c = *(unsigned char *) string;
5408 unsigned char bytes = utf8_bytes[c];
5410 unsigned long unicode;
5412 if (string + bytes > end)
5415 /* Change representation to figure out whether
5416 * it is a single- or double-width character. */
5418 unicode = utf8_to_unicode(string, bytes);
5419 /* FIXME: Graceful handling of invalid unicode character. */
5423 ucwidth = unicode_width(unicode);
5425 if (*width > max_width) {
5428 if (reserve && *width == max_width) {
5429 string -= last_bytes;
5430 *width -= last_ucwidth;
5437 last_ucwidth = ucwidth;
5440 return string - start;
5448 /* Whether or not the curses interface has been initialized. */
5449 static bool cursed = FALSE;
5451 /* The status window is used for polling keystrokes. */
5452 static WINDOW *status_win;
5454 static bool status_empty = TRUE;
5456 /* Update status and title window. */
5458 report(const char *msg, ...)
5460 struct view *view = display[current_view];
5466 char buf[SIZEOF_STR];
5469 va_start(args, msg);
5470 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5471 buf[sizeof(buf) - 1] = 0;
5472 buf[sizeof(buf) - 2] = '.';
5473 buf[sizeof(buf) - 3] = '.';
5474 buf[sizeof(buf) - 4] = '.';
5480 if (!status_empty || *msg) {
5483 va_start(args, msg);
5485 wmove(status_win, 0, 0);
5487 vwprintw(status_win, msg, args);
5488 status_empty = FALSE;
5490 status_empty = TRUE;
5492 wclrtoeol(status_win);
5493 wrefresh(status_win);
5498 update_view_title(view);
5499 update_display_cursor(view);
5502 /* Controls when nodelay should be in effect when polling user input. */
5504 set_nonblocking_input(bool loading)
5506 static unsigned int loading_views;
5508 if ((loading == FALSE && loading_views-- == 1) ||
5509 (loading == TRUE && loading_views++ == 0))
5510 nodelay(status_win, loading);
5518 /* Initialize the curses library */
5519 if (isatty(STDIN_FILENO)) {
5520 cursed = !!initscr();
5522 /* Leave stdin and stdout alone when acting as a pager. */
5523 FILE *io = fopen("/dev/tty", "r+");
5526 die("Failed to open /dev/tty");
5527 cursed = !!newterm(NULL, io, io);
5531 die("Failed to initialize curses");
5533 nonl(); /* Tell curses not to do NL->CR/NL on output */
5534 cbreak(); /* Take input chars one at a time, no wait for \n */
5535 noecho(); /* Don't echo input */
5536 leaveok(stdscr, TRUE);
5541 getmaxyx(stdscr, y, x);
5542 status_win = newwin(1, 0, y - 1, 0);
5544 die("Failed to create status window");
5546 /* Enable keyboard mapping */
5547 keypad(status_win, TRUE);
5548 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5550 TABSIZE = opt_tab_size;
5551 if (opt_line_graphics) {
5552 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5557 prompt_yesno(const char *prompt)
5559 enum { WAIT, STOP, CANCEL } status = WAIT;
5560 bool answer = FALSE;
5562 while (status == WAIT) {
5568 foreach_view (view, i)
5573 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
5574 wclrtoeol(status_win);
5576 /* Refresh, accept single keystroke of input */
5577 key = wgetch(status_win);
5601 /* Clear the status window */
5602 status_empty = FALSE;
5609 read_prompt(const char *prompt)
5611 enum { READING, STOP, CANCEL } status = READING;
5612 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
5615 while (status == READING) {
5621 foreach_view (view, i)
5626 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5627 wclrtoeol(status_win);
5629 /* Refresh, accept single keystroke of input */
5630 key = wgetch(status_win);
5635 status = pos ? STOP : CANCEL;
5653 if (pos >= sizeof(buf)) {
5654 report("Input string too long");
5659 buf[pos++] = (char) key;
5663 /* Clear the status window */
5664 status_empty = FALSE;
5667 if (status == CANCEL)
5676 * Repository references
5679 static struct ref *refs = NULL;
5680 static size_t refs_alloc = 0;
5681 static size_t refs_size = 0;
5683 /* Id <-> ref store */
5684 static struct ref ***id_refs = NULL;
5685 static size_t id_refs_alloc = 0;
5686 static size_t id_refs_size = 0;
5688 static struct ref **
5691 struct ref ***tmp_id_refs;
5692 struct ref **ref_list = NULL;
5693 size_t ref_list_alloc = 0;
5694 size_t ref_list_size = 0;
5697 for (i = 0; i < id_refs_size; i++)
5698 if (!strcmp(id, id_refs[i][0]->id))
5701 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
5706 id_refs = tmp_id_refs;
5708 for (i = 0; i < refs_size; i++) {
5711 if (strcmp(id, refs[i].id))
5714 tmp = realloc_items(ref_list, &ref_list_alloc,
5715 ref_list_size + 1, sizeof(*ref_list));
5723 if (ref_list_size > 0)
5724 ref_list[ref_list_size - 1]->next = 1;
5725 ref_list[ref_list_size] = &refs[i];
5727 /* XXX: The properties of the commit chains ensures that we can
5728 * safely modify the shared ref. The repo references will
5729 * always be similar for the same id. */
5730 ref_list[ref_list_size]->next = 0;
5735 id_refs[id_refs_size++] = ref_list;
5741 read_ref(char *id, size_t idlen, char *name, size_t namelen)
5746 bool remote = FALSE;
5747 bool tracked = FALSE;
5748 bool check_replace = FALSE;
5751 if (!strncmp(name, "refs/tags/", STRING_SIZE("refs/tags/"))) {
5752 if (!strcmp(name + namelen - 3, "^{}")) {
5755 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
5756 check_replace = TRUE;
5762 namelen -= STRING_SIZE("refs/tags/");
5763 name += STRING_SIZE("refs/tags/");
5765 } else if (!strncmp(name, "refs/remotes/", STRING_SIZE("refs/remotes/"))) {
5767 namelen -= STRING_SIZE("refs/remotes/");
5768 name += STRING_SIZE("refs/remotes/");
5769 tracked = !strcmp(opt_remote, name);
5771 } else if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5772 namelen -= STRING_SIZE("refs/heads/");
5773 name += STRING_SIZE("refs/heads/");
5774 head = !strncmp(opt_head, name, namelen);
5776 } else if (!strcmp(name, "HEAD")) {
5777 opt_no_head = FALSE;
5781 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
5782 /* it's an annotated tag, replace the previous sha1 with the
5783 * resolved commit id; relies on the fact git-ls-remote lists
5784 * the commit id of an annotated tag right beofre the commit id
5786 refs[refs_size - 1].ltag = ltag;
5787 string_copy_rev(refs[refs_size - 1].id, id);
5791 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
5795 ref = &refs[refs_size++];
5796 ref->name = malloc(namelen + 1);
5800 strncpy(ref->name, name, namelen);
5801 ref->name[namelen] = 0;
5805 ref->remote = remote;
5806 ref->tracked = tracked;
5807 string_copy_rev(ref->id, id);
5815 const char *cmd_env = getenv("TIG_LS_REMOTE");
5816 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
5821 while (refs_size > 0)
5822 free(refs[--refs_size].name);
5823 while (id_refs_size > 0)
5824 free(id_refs[--id_refs_size]);
5826 return read_properties(popen(cmd, "r"), "\t", read_ref);
5830 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
5832 if (!strcmp(name, "i18n.commitencoding"))
5833 string_ncopy(opt_encoding, value, valuelen);
5835 if (!strcmp(name, "core.editor"))
5836 string_ncopy(opt_editor, value, valuelen);
5838 /* branch.<head>.remote */
5840 !strncmp(name, "branch.", 7) &&
5841 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5842 !strcmp(name + 7 + strlen(opt_head), ".remote"))
5843 string_ncopy(opt_remote, value, valuelen);
5845 if (*opt_head && *opt_remote &&
5846 !strncmp(name, "branch.", 7) &&
5847 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5848 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
5849 size_t from = strlen(opt_remote);
5851 if (!strncmp(value, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5852 value += STRING_SIZE("refs/heads/");
5853 valuelen -= STRING_SIZE("refs/heads/");
5856 if (!string_format_from(opt_remote, &from, "/%s", value))
5864 load_git_config(void)
5866 return read_properties(popen("git " GIT_CONFIG " --list", "r"),
5867 "=", read_repo_config_option);
5871 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
5873 if (!opt_git_dir[0]) {
5874 string_ncopy(opt_git_dir, name, namelen);
5876 } else if (opt_is_inside_work_tree == -1) {
5877 /* This can be 3 different values depending on the
5878 * version of git being used. If git-rev-parse does not
5879 * understand --is-inside-work-tree it will simply echo
5880 * the option else either "true" or "false" is printed.
5881 * Default to true for the unknown case. */
5882 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
5884 } else if (opt_cdup[0] == ' ') {
5885 string_ncopy(opt_cdup, name, namelen);
5887 if (!strncmp(name, "refs/heads/", STRING_SIZE("refs/heads/"))) {
5888 namelen -= STRING_SIZE("refs/heads/");
5889 name += STRING_SIZE("refs/heads/");
5890 string_ncopy(opt_head, name, namelen);
5898 load_repo_info(void)
5901 FILE *pipe = popen("(git rev-parse --git-dir --is-inside-work-tree "
5902 " --show-cdup; git symbolic-ref HEAD) 2>/dev/null", "r");
5904 /* XXX: The line outputted by "--show-cdup" can be empty so
5905 * initialize it to something invalid to make it possible to
5906 * detect whether it has been set or not. */
5909 result = read_properties(pipe, "=", read_repo_info);
5910 if (opt_cdup[0] == ' ')
5917 read_properties(FILE *pipe, const char *separators,
5918 int (*read_property)(char *, size_t, char *, size_t))
5920 char buffer[BUFSIZ];
5927 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
5932 name = chomp_string(name);
5933 namelen = strcspn(name, separators);
5935 if (name[namelen]) {
5937 value = chomp_string(name + namelen + 1);
5938 valuelen = strlen(value);
5945 state = read_property(name, namelen, value, valuelen);
5948 if (state != ERR && ferror(pipe))
5961 static void __NORETURN
5964 /* XXX: Restore tty modes and let the OS cleanup the rest! */
5970 static void __NORETURN
5971 die(const char *err, ...)
5977 va_start(args, err);
5978 fputs("tig: ", stderr);
5979 vfprintf(stderr, err, args);
5980 fputs("\n", stderr);
5987 warn(const char *msg, ...)
5991 va_start(args, msg);
5992 fputs("tig warning: ", stderr);
5993 vfprintf(stderr, msg, args);
5994 fputs("\n", stderr);
5999 main(int argc, char *argv[])
6002 enum request request;
6005 signal(SIGINT, quit);
6007 if (setlocale(LC_ALL, "")) {
6008 char *codeset = nl_langinfo(CODESET);
6010 string_ncopy(opt_codeset, codeset, strlen(codeset));
6013 if (load_repo_info() == ERR)
6014 die("Failed to load repo info.");
6016 if (load_options() == ERR)
6017 die("Failed to load user config.");
6019 if (load_git_config() == ERR)
6020 die("Failed to load repo config.");
6022 request = parse_options(argc, argv);
6023 if (request == REQ_NONE)
6026 /* Require a git repository unless when running in pager mode. */
6027 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6028 die("Not a git repository");
6030 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6033 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6034 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6035 if (opt_iconv == ICONV_NONE)
6036 die("Failed to initialize character set conversion");
6039 if (load_refs() == ERR)
6040 die("Failed to load refs.");
6042 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
6043 view->cmd_env = getenv(view->cmd_env);
6047 while (view_driver(display[current_view], request)) {
6051 foreach_view (view, i)
6054 /* Refresh, accept single keystroke of input */
6055 key = wgetch(status_win);
6057 /* wgetch() with nodelay() enabled returns ERR when there's no
6064 request = get_keybinding(display[current_view]->keymap, key);
6066 /* Some low-level request handling. This keeps access to
6067 * status_win restricted. */
6071 char *cmd = read_prompt(":");
6073 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
6074 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
6075 request = REQ_VIEW_DIFF;
6077 request = REQ_VIEW_PAGER;
6080 /* Always reload^Wrerun commands from the prompt. */
6081 open_view(view, request, OPEN_RELOAD);
6088 case REQ_SEARCH_BACK:
6090 const char *prompt = request == REQ_SEARCH
6092 char *search = read_prompt(prompt);
6095 string_ncopy(opt_search, search, strlen(search));
6100 case REQ_SCREEN_RESIZE:
6104 getmaxyx(stdscr, height, width);
6106 /* Resize the status view and let the view driver take
6107 * care of resizing the displayed views. */
6108 wresize(status_win, 1, width);
6109 mvwin(status_win, height - 1, 0);
6110 wrefresh(status_win);