1 /* Copyright (c) 2006-2008 Jonas Fonseca <fonseca@diku.dk>
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License as
5 * published by the Free Software Foundation; either version 2 of
6 * the License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
19 #define TIG_VERSION "unknown-version"
34 #include <sys/types.h>
45 /* ncurses(3): Must be defined to have extended wide-character functions. */
46 #define _XOPEN_SOURCE_EXTENDED
48 #ifdef HAVE_NCURSESW_NCURSES_H
49 #include <ncursesw/ncurses.h>
51 #ifdef HAVE_NCURSES_NCURSES_H
52 #include <ncurses/ncurses.h>
59 #define __NORETURN __attribute__((__noreturn__))
64 static void __NORETURN die(const char *err, ...);
65 static void warn(const char *msg, ...);
66 static void report(const char *msg, ...);
67 static int read_properties(FILE *pipe, const char *separators, int (*read)(char *, size_t, char *, size_t));
68 static void set_nonblocking_input(bool loading);
69 static size_t utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve);
70 static bool prompt_yesno(const char *prompt);
71 static int load_refs(void);
73 #define ABS(x) ((x) >= 0 ? (x) : -(x))
74 #define MIN(x, y) ((x) < (y) ? (x) : (y))
76 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
77 #define STRING_SIZE(x) (sizeof(x) - 1)
79 #define SIZEOF_STR 1024 /* Default string size. */
80 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
81 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL. */
82 #define SIZEOF_ARG 32 /* Default argument array size. */
86 #define REVGRAPH_INIT 'I'
87 #define REVGRAPH_MERGE 'M'
88 #define REVGRAPH_BRANCH '+'
89 #define REVGRAPH_COMMIT '*'
90 #define REVGRAPH_BOUND '^'
92 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
94 /* This color name can be used to refer to the default term colors. */
95 #define COLOR_DEFAULT (-1)
97 #define ICONV_NONE ((iconv_t) -1)
99 #define ICONV_CONST /* nothing */
102 /* The format and size of the date column in the main view. */
103 #define DATE_FORMAT "%Y-%m-%d %H:%M"
104 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
106 #define AUTHOR_COLS 20
109 /* The default interval between line numbers. */
110 #define NUMBER_INTERVAL 5
114 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
116 #define NULL_ID "0000000000000000000000000000000000000000"
119 #define GIT_CONFIG "config"
122 #define TIG_LS_REMOTE \
123 "git ls-remote . 2>/dev/null"
125 #define TIG_DIFF_CMD \
126 "git show --pretty=fuller --no-color --root --patch-with-stat --find-copies-harder -C %s 2>/dev/null"
128 #define TIG_LOG_CMD \
129 "git log --no-color --cc --stat -n100 %s 2>/dev/null"
131 #define TIG_MAIN_BASE \
132 "git log --no-color --pretty=raw --parents --topo-order"
134 #define TIG_MAIN_CMD \
135 TIG_MAIN_BASE " %s 2>/dev/null"
137 #define TIG_TREE_CMD \
140 #define TIG_BLOB_CMD \
141 "git cat-file blob %s"
143 /* XXX: Needs to be defined to the empty string. */
144 #define TIG_HELP_CMD ""
145 #define TIG_PAGER_CMD ""
146 #define TIG_STATUS_CMD ""
147 #define TIG_STAGE_CMD ""
148 #define TIG_BLAME_CMD ""
150 /* Some ascii-shorthands fitted into the ncurses namespace. */
152 #define KEY_RETURN '\r'
157 char *name; /* Ref name; tag or head names are shortened. */
158 char id[SIZEOF_REV]; /* Commit SHA1 ID */
159 unsigned int head:1; /* Is it the current HEAD? */
160 unsigned int tag:1; /* Is it a tag? */
161 unsigned int ltag:1; /* If so, is the tag local? */
162 unsigned int remote:1; /* Is it a remote ref? */
163 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
164 unsigned int next:1; /* For ref lists: are there more refs? */
167 static struct ref **get_refs(const char *id);
176 set_from_int_map(struct int_map *map, size_t map_size,
177 int *value, const char *name, int namelen)
182 for (i = 0; i < map_size; i++)
183 if (namelen == map[i].namelen &&
184 !strncasecmp(name, map[i].name, namelen)) {
185 *value = map[i].value;
198 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
200 if (srclen > dstlen - 1)
203 strncpy(dst, src, srclen);
207 /* Shorthands for safely copying into a fixed buffer. */
209 #define string_copy(dst, src) \
210 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
212 #define string_ncopy(dst, src, srclen) \
213 string_ncopy_do(dst, sizeof(dst), src, srclen)
215 #define string_copy_rev(dst, src) \
216 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
218 #define string_add(dst, from, src) \
219 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
222 chomp_string(char *name)
226 while (isspace(*name))
229 namelen = strlen(name) - 1;
230 while (namelen > 0 && isspace(name[namelen]))
237 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
240 size_t pos = bufpos ? *bufpos : 0;
243 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
249 return pos >= bufsize ? FALSE : TRUE;
252 #define string_format(buf, fmt, args...) \
253 string_nformat(buf, sizeof(buf), NULL, fmt, args)
255 #define string_format_from(buf, from, fmt, args...) \
256 string_nformat(buf, sizeof(buf), from, fmt, args)
259 string_enum_compare(const char *str1, const char *str2, int len)
263 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
265 /* Diff-Header == DIFF_HEADER */
266 for (i = 0; i < len; i++) {
267 if (toupper(str1[i]) == toupper(str2[i]))
270 if (string_enum_sep(str1[i]) &&
271 string_enum_sep(str2[i]))
274 return str1[i] - str2[i];
280 #define prefixcmp(str1, str2) \
281 strncmp(str1, str2, STRING_SIZE(str2))
284 suffixcmp(const char *str, int slen, const char *suffix)
286 size_t len = slen >= 0 ? slen : strlen(str);
287 size_t suffixlen = strlen(suffix);
289 return suffixlen < len ? strcmp(str + len - suffixlen, suffix) : -1;
294 * NOTE: The following is a slightly modified copy of the git project's shell
295 * quoting routines found in the quote.c file.
297 * Help to copy the thing properly quoted for the shell safety. any single
298 * quote is replaced with '\'', any exclamation point is replaced with '\!',
299 * and the whole thing is enclosed in a
302 * original sq_quote result
303 * name ==> name ==> 'name'
304 * a b ==> a b ==> 'a b'
305 * a'b ==> a'\''b ==> 'a'\''b'
306 * a!b ==> a'\!'b ==> 'a'\!'b'
310 sq_quote(char buf[SIZEOF_STR], size_t bufsize, const char *src)
314 #define BUFPUT(x) do { if (bufsize < SIZEOF_STR) buf[bufsize++] = (x); } while (0)
317 while ((c = *src++)) {
318 if (c == '\'' || c == '!') {
329 if (bufsize < SIZEOF_STR)
341 /* XXX: Keep the view request first and in sync with views[]. */ \
342 REQ_GROUP("View switching") \
343 REQ_(VIEW_MAIN, "Show main view"), \
344 REQ_(VIEW_DIFF, "Show diff view"), \
345 REQ_(VIEW_LOG, "Show log view"), \
346 REQ_(VIEW_TREE, "Show tree view"), \
347 REQ_(VIEW_BLOB, "Show blob view"), \
348 REQ_(VIEW_BLAME, "Show blame view"), \
349 REQ_(VIEW_HELP, "Show help page"), \
350 REQ_(VIEW_PAGER, "Show pager view"), \
351 REQ_(VIEW_STATUS, "Show status view"), \
352 REQ_(VIEW_STAGE, "Show stage view"), \
354 REQ_GROUP("View manipulation") \
355 REQ_(ENTER, "Enter current line and scroll"), \
356 REQ_(NEXT, "Move to next"), \
357 REQ_(PREVIOUS, "Move to previous"), \
358 REQ_(VIEW_NEXT, "Move focus to next view"), \
359 REQ_(REFRESH, "Reload and refresh"), \
360 REQ_(MAXIMIZE, "Maximize the current view"), \
361 REQ_(VIEW_CLOSE, "Close the current view"), \
362 REQ_(QUIT, "Close all views and quit"), \
364 REQ_GROUP("View specific requests") \
365 REQ_(STATUS_UPDATE, "Update file status"), \
366 REQ_(STATUS_REVERT, "Revert file changes"), \
367 REQ_(STATUS_MERGE, "Merge file using external tool"), \
368 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
369 REQ_(TREE_PARENT, "Switch to parent directory in tree view"), \
371 REQ_GROUP("Cursor navigation") \
372 REQ_(MOVE_UP, "Move cursor one line up"), \
373 REQ_(MOVE_DOWN, "Move cursor one line down"), \
374 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
375 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
376 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
377 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
379 REQ_GROUP("Scrolling") \
380 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
381 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
382 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
383 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
385 REQ_GROUP("Searching") \
386 REQ_(SEARCH, "Search the view"), \
387 REQ_(SEARCH_BACK, "Search backwards in the view"), \
388 REQ_(FIND_NEXT, "Find next search match"), \
389 REQ_(FIND_PREV, "Find previous search match"), \
391 REQ_GROUP("Option manipulation") \
392 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
393 REQ_(TOGGLE_DATE, "Toggle date display"), \
394 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
395 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
396 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
399 REQ_(PROMPT, "Bring up the prompt"), \
400 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
401 REQ_(SCREEN_RESIZE, "Resize the screen"), \
402 REQ_(SHOW_VERSION, "Show version information"), \
403 REQ_(STOP_LOADING, "Stop all loading views"), \
404 REQ_(EDIT, "Open in editor"), \
405 REQ_(NONE, "Do nothing")
408 /* User action requests. */
410 #define REQ_GROUP(help)
411 #define REQ_(req, help) REQ_##req
413 /* Offset all requests to avoid conflicts with ncurses getch values. */
414 REQ_OFFSET = KEY_MAX + 1,
421 struct request_info {
422 enum request request;
428 static struct request_info req_info[] = {
429 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
430 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
437 get_request(const char *name)
439 int namelen = strlen(name);
442 for (i = 0; i < ARRAY_SIZE(req_info); i++)
443 if (req_info[i].namelen == namelen &&
444 !string_enum_compare(req_info[i].name, name, namelen))
445 return req_info[i].request;
455 static const char usage[] =
456 "tig " TIG_VERSION " (" __DATE__ ")\n"
458 "Usage: tig [options] [revs] [--] [paths]\n"
459 " or: tig show [options] [revs] [--] [paths]\n"
460 " or: tig blame [rev] path\n"
462 " or: tig < [git command output]\n"
465 " -v, --version Show version and exit\n"
466 " -h, --help Show help message and exit";
468 /* Option and state variables. */
469 static bool opt_date = TRUE;
470 static bool opt_author = TRUE;
471 static bool opt_line_number = FALSE;
472 static bool opt_line_graphics = TRUE;
473 static bool opt_rev_graph = FALSE;
474 static bool opt_show_refs = TRUE;
475 static int opt_num_interval = NUMBER_INTERVAL;
476 static int opt_tab_size = TAB_SIZE;
477 static int opt_author_cols = AUTHOR_COLS-1;
478 static char opt_cmd[SIZEOF_STR] = "";
479 static char opt_path[SIZEOF_STR] = "";
480 static char opt_file[SIZEOF_STR] = "";
481 static char opt_ref[SIZEOF_REF] = "";
482 static char opt_head[SIZEOF_REF] = "";
483 static char opt_remote[SIZEOF_REF] = "";
484 static bool opt_no_head = TRUE;
485 static FILE *opt_pipe = NULL;
486 static char opt_encoding[20] = "UTF-8";
487 static bool opt_utf8 = TRUE;
488 static char opt_codeset[20] = "UTF-8";
489 static iconv_t opt_iconv = ICONV_NONE;
490 static char opt_search[SIZEOF_STR] = "";
491 static char opt_cdup[SIZEOF_STR] = "";
492 static char opt_git_dir[SIZEOF_STR] = "";
493 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
494 static char opt_editor[SIZEOF_STR] = "";
495 static FILE *opt_tty = NULL;
498 parse_options(int argc, const char *argv[])
500 enum request request = REQ_VIEW_MAIN;
502 const char *subcommand;
503 bool seen_dashdash = FALSE;
506 if (!isatty(STDIN_FILENO)) {
508 return REQ_VIEW_PAGER;
512 return REQ_VIEW_MAIN;
514 subcommand = argv[1];
515 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
516 if (!strcmp(subcommand, "-S"))
517 warn("`-S' has been deprecated; use `tig status' instead");
519 warn("ignoring arguments after `%s'", subcommand);
520 return REQ_VIEW_STATUS;
522 } else if (!strcmp(subcommand, "blame")) {
523 if (argc <= 2 || argc > 4)
524 die("invalid number of options to blame\n\n%s", usage);
528 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
532 string_ncopy(opt_file, argv[i], strlen(argv[i]));
533 return REQ_VIEW_BLAME;
535 } else if (!strcmp(subcommand, "show")) {
536 request = REQ_VIEW_DIFF;
538 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
539 request = subcommand[0] == 'l' ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
540 warn("`tig %s' has been deprecated", subcommand);
547 /* XXX: This is vulnerable to the user overriding
548 * options required for the main view parser. */
549 string_copy(opt_cmd, TIG_MAIN_BASE);
551 string_format(opt_cmd, "git %s", subcommand);
553 buf_size = strlen(opt_cmd);
555 for (i = 1 + !!subcommand; i < argc; i++) {
556 const char *opt = argv[i];
558 if (seen_dashdash || !strcmp(opt, "--")) {
559 seen_dashdash = TRUE;
561 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
562 printf("tig version %s\n", TIG_VERSION);
565 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
566 printf("%s\n", usage);
570 opt_cmd[buf_size++] = ' ';
571 buf_size = sq_quote(opt_cmd, buf_size, opt);
572 if (buf_size >= sizeof(opt_cmd))
573 die("command too long");
576 opt_cmd[buf_size] = 0;
583 * Line-oriented content detection.
587 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
588 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
589 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
590 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
591 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
592 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
593 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
594 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
595 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
596 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
597 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
598 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
599 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
600 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
601 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
602 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
603 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
604 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
605 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
606 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
607 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
608 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
609 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
610 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
611 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
612 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
613 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
614 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
615 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
616 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
617 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
618 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
619 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
620 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
621 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
622 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
623 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
624 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
625 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
626 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
627 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
628 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
629 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
630 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
631 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
632 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
633 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
634 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
635 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
636 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
637 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
638 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
639 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
640 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
643 #define LINE(type, line, fg, bg, attr) \
651 const char *name; /* Option name. */
652 int namelen; /* Size of option name. */
653 const char *line; /* The start of line to match. */
654 int linelen; /* Size of string to match. */
655 int fg, bg, attr; /* Color and text attributes for the lines. */
658 static struct line_info line_info[] = {
659 #define LINE(type, line, fg, bg, attr) \
660 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
665 static enum line_type
666 get_line_type(const char *line)
668 int linelen = strlen(line);
671 for (type = 0; type < ARRAY_SIZE(line_info); type++)
672 /* Case insensitive search matches Signed-off-by lines better. */
673 if (linelen >= line_info[type].linelen &&
674 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
681 get_line_attr(enum line_type type)
683 assert(type < ARRAY_SIZE(line_info));
684 return COLOR_PAIR(type) | line_info[type].attr;
687 static struct line_info *
688 get_line_info(const char *name)
690 size_t namelen = strlen(name);
693 for (type = 0; type < ARRAY_SIZE(line_info); type++)
694 if (namelen == line_info[type].namelen &&
695 !string_enum_compare(line_info[type].name, name, namelen))
696 return &line_info[type];
704 int default_bg = line_info[LINE_DEFAULT].bg;
705 int default_fg = line_info[LINE_DEFAULT].fg;
710 if (assume_default_colors(default_fg, default_bg) == ERR) {
711 default_bg = COLOR_BLACK;
712 default_fg = COLOR_WHITE;
715 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
716 struct line_info *info = &line_info[type];
717 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
718 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
720 init_pair(type, fg, bg);
728 unsigned int selected:1;
729 unsigned int dirty:1;
731 void *data; /* User data */
741 enum request request;
742 struct keybinding *next;
745 static struct keybinding default_keybindings[] = {
747 { 'm', REQ_VIEW_MAIN },
748 { 'd', REQ_VIEW_DIFF },
749 { 'l', REQ_VIEW_LOG },
750 { 't', REQ_VIEW_TREE },
751 { 'f', REQ_VIEW_BLOB },
752 { 'B', REQ_VIEW_BLAME },
753 { 'p', REQ_VIEW_PAGER },
754 { 'h', REQ_VIEW_HELP },
755 { 'S', REQ_VIEW_STATUS },
756 { 'c', REQ_VIEW_STAGE },
758 /* View manipulation */
759 { 'q', REQ_VIEW_CLOSE },
760 { KEY_TAB, REQ_VIEW_NEXT },
761 { KEY_RETURN, REQ_ENTER },
762 { KEY_UP, REQ_PREVIOUS },
763 { KEY_DOWN, REQ_NEXT },
764 { 'R', REQ_REFRESH },
765 { KEY_F(5), REQ_REFRESH },
766 { 'O', REQ_MAXIMIZE },
768 /* Cursor navigation */
769 { 'k', REQ_MOVE_UP },
770 { 'j', REQ_MOVE_DOWN },
771 { KEY_HOME, REQ_MOVE_FIRST_LINE },
772 { KEY_END, REQ_MOVE_LAST_LINE },
773 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
774 { ' ', REQ_MOVE_PAGE_DOWN },
775 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
776 { 'b', REQ_MOVE_PAGE_UP },
777 { '-', REQ_MOVE_PAGE_UP },
780 { KEY_IC, REQ_SCROLL_LINE_UP },
781 { KEY_DC, REQ_SCROLL_LINE_DOWN },
782 { 'w', REQ_SCROLL_PAGE_UP },
783 { 's', REQ_SCROLL_PAGE_DOWN },
787 { '?', REQ_SEARCH_BACK },
788 { 'n', REQ_FIND_NEXT },
789 { 'N', REQ_FIND_PREV },
793 { 'z', REQ_STOP_LOADING },
794 { 'v', REQ_SHOW_VERSION },
795 { 'r', REQ_SCREEN_REDRAW },
796 { '.', REQ_TOGGLE_LINENO },
797 { 'D', REQ_TOGGLE_DATE },
798 { 'A', REQ_TOGGLE_AUTHOR },
799 { 'g', REQ_TOGGLE_REV_GRAPH },
800 { 'F', REQ_TOGGLE_REFS },
802 { 'u', REQ_STATUS_UPDATE },
803 { '!', REQ_STATUS_REVERT },
804 { 'M', REQ_STATUS_MERGE },
805 { '@', REQ_STAGE_NEXT },
806 { ',', REQ_TREE_PARENT },
809 /* Using the ncurses SIGWINCH handler. */
810 { KEY_RESIZE, REQ_SCREEN_RESIZE },
813 #define KEYMAP_INFO \
827 #define KEYMAP_(name) KEYMAP_##name
832 static struct int_map keymap_table[] = {
833 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
838 #define set_keymap(map, name) \
839 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
841 static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)];
844 add_keybinding(enum keymap keymap, enum request request, int key)
846 struct keybinding *keybinding;
848 keybinding = calloc(1, sizeof(*keybinding));
850 die("Failed to allocate keybinding");
852 keybinding->alias = key;
853 keybinding->request = request;
854 keybinding->next = keybindings[keymap];
855 keybindings[keymap] = keybinding;
858 /* Looks for a key binding first in the given map, then in the generic map, and
859 * lastly in the default keybindings. */
861 get_keybinding(enum keymap keymap, int key)
863 struct keybinding *kbd;
866 for (kbd = keybindings[keymap]; kbd; kbd = kbd->next)
867 if (kbd->alias == key)
870 for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next)
871 if (kbd->alias == key)
874 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
875 if (default_keybindings[i].alias == key)
876 return default_keybindings[i].request;
878 return (enum request) key;
887 static struct key key_table[] = {
888 { "Enter", KEY_RETURN },
890 { "Backspace", KEY_BACKSPACE },
892 { "Escape", KEY_ESC },
893 { "Left", KEY_LEFT },
894 { "Right", KEY_RIGHT },
896 { "Down", KEY_DOWN },
897 { "Insert", KEY_IC },
898 { "Delete", KEY_DC },
900 { "Home", KEY_HOME },
902 { "PageUp", KEY_PPAGE },
903 { "PageDown", KEY_NPAGE },
913 { "F10", KEY_F(10) },
914 { "F11", KEY_F(11) },
915 { "F12", KEY_F(12) },
919 get_key_value(const char *name)
923 for (i = 0; i < ARRAY_SIZE(key_table); i++)
924 if (!strcasecmp(key_table[i].name, name))
925 return key_table[i].value;
927 if (strlen(name) == 1 && isprint(*name))
934 get_key_name(int key_value)
936 static char key_char[] = "'X'";
937 const char *seq = NULL;
940 for (key = 0; key < ARRAY_SIZE(key_table); key++)
941 if (key_table[key].value == key_value)
942 seq = key_table[key].name;
946 isprint(key_value)) {
947 key_char[1] = (char) key_value;
951 return seq ? seq : "(no key)";
955 get_key(enum request request)
957 static char buf[BUFSIZ];
964 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
965 struct keybinding *keybinding = &default_keybindings[i];
967 if (keybinding->request != request)
970 if (!string_format_from(buf, &pos, "%s%s", sep,
971 get_key_name(keybinding->alias)))
972 return "Too many keybindings!";
982 char cmd[SIZEOF_STR];
985 static struct run_request *run_request;
986 static size_t run_requests;
989 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
991 struct run_request *req;
992 char cmd[SIZEOF_STR];
995 for (bufpos = 0; argc > 0; argc--, argv++)
996 if (!string_format_from(cmd, &bufpos, "%s ", *argv))
999 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1004 req = &run_request[run_requests++];
1005 string_copy(req->cmd, cmd);
1006 req->keymap = keymap;
1009 return REQ_NONE + run_requests;
1012 static struct run_request *
1013 get_run_request(enum request request)
1015 if (request <= REQ_NONE)
1017 return &run_request[request - REQ_NONE - 1];
1021 add_builtin_run_requests(void)
1026 const char *argv[1];
1028 { KEYMAP_MAIN, 'C', { "git cherry-pick %(commit)" } },
1029 { KEYMAP_GENERIC, 'G', { "git gc" } },
1033 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1036 req = add_run_request(reqs[i].keymap, reqs[i].key, 1, reqs[i].argv);
1037 if (req != REQ_NONE)
1038 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1043 * User config file handling.
1046 static struct int_map color_map[] = {
1047 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1059 #define set_color(color, name) \
1060 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1062 static struct int_map attr_map[] = {
1063 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1070 ATTR_MAP(UNDERLINE),
1073 #define set_attribute(attr, name) \
1074 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1076 static int config_lineno;
1077 static bool config_errors;
1078 static const char *config_msg;
1080 /* Wants: object fgcolor bgcolor [attr] */
1082 option_color_command(int argc, const char *argv[])
1084 struct line_info *info;
1086 if (argc != 3 && argc != 4) {
1087 config_msg = "Wrong number of arguments given to color command";
1091 info = get_line_info(argv[0]);
1093 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1094 info = get_line_info("delimiter");
1096 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1097 info = get_line_info("date");
1100 config_msg = "Unknown color name";
1105 if (set_color(&info->fg, argv[1]) == ERR ||
1106 set_color(&info->bg, argv[2]) == ERR) {
1107 config_msg = "Unknown color";
1111 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1112 config_msg = "Unknown attribute";
1119 static bool parse_bool(const char *s)
1121 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1122 !strcmp(s, "yes")) ? TRUE : FALSE;
1126 parse_int(const char *s, int default_value, int min, int max)
1128 int value = atoi(s);
1130 return (value < min || value > max) ? default_value : value;
1133 /* Wants: name = value */
1135 option_set_command(int argc, const char *argv[])
1138 config_msg = "Wrong number of arguments given to set command";
1142 if (strcmp(argv[1], "=")) {
1143 config_msg = "No value assigned";
1147 if (!strcmp(argv[0], "show-author")) {
1148 opt_author = parse_bool(argv[2]);
1152 if (!strcmp(argv[0], "show-date")) {
1153 opt_date = parse_bool(argv[2]);
1157 if (!strcmp(argv[0], "show-rev-graph")) {
1158 opt_rev_graph = parse_bool(argv[2]);
1162 if (!strcmp(argv[0], "show-refs")) {
1163 opt_show_refs = parse_bool(argv[2]);
1167 if (!strcmp(argv[0], "show-line-numbers")) {
1168 opt_line_number = parse_bool(argv[2]);
1172 if (!strcmp(argv[0], "line-graphics")) {
1173 opt_line_graphics = parse_bool(argv[2]);
1177 if (!strcmp(argv[0], "line-number-interval")) {
1178 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1182 if (!strcmp(argv[0], "author-width")) {
1183 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1187 if (!strcmp(argv[0], "tab-size")) {
1188 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1192 if (!strcmp(argv[0], "commit-encoding")) {
1193 const char *arg = argv[2];
1194 int arglen = strlen(arg);
1199 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1200 config_msg = "Unmatched quotation";
1203 arg += 1; arglen -= 2;
1205 string_ncopy(opt_encoding, arg, strlen(arg));
1210 config_msg = "Unknown variable name";
1214 /* Wants: mode request key */
1216 option_bind_command(int argc, const char *argv[])
1218 enum request request;
1223 config_msg = "Wrong number of arguments given to bind command";
1227 if (set_keymap(&keymap, argv[0]) == ERR) {
1228 config_msg = "Unknown key map";
1232 key = get_key_value(argv[1]);
1234 config_msg = "Unknown key";
1238 request = get_request(argv[2]);
1239 if (request == REQ_NONE) {
1240 const char *obsolete[] = { "cherry-pick" };
1241 size_t namelen = strlen(argv[2]);
1244 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1245 if (namelen == strlen(obsolete[i]) &&
1246 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1247 config_msg = "Obsolete request name";
1252 if (request == REQ_NONE && *argv[2]++ == '!')
1253 request = add_run_request(keymap, key, argc - 2, argv + 2);
1254 if (request == REQ_NONE) {
1255 config_msg = "Unknown request name";
1259 add_keybinding(keymap, request, key);
1265 set_option(const char *opt, char *value)
1267 const char *argv[SIZEOF_ARG];
1272 while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) {
1273 argv[argc++] = value;
1276 /* Nothing more to tokenize or last available token. */
1277 if (!*value || argc >= ARRAY_SIZE(argv))
1281 while (isspace(*value))
1285 if (!strcmp(opt, "color"))
1286 return option_color_command(argc, argv);
1288 if (!strcmp(opt, "set"))
1289 return option_set_command(argc, argv);
1291 if (!strcmp(opt, "bind"))
1292 return option_bind_command(argc, argv);
1294 config_msg = "Unknown option command";
1299 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1304 config_msg = "Internal error";
1306 /* Check for comment markers, since read_properties() will
1307 * only ensure opt and value are split at first " \t". */
1308 optlen = strcspn(opt, "#");
1312 if (opt[optlen] != 0) {
1313 config_msg = "No option value";
1317 /* Look for comment endings in the value. */
1318 size_t len = strcspn(value, "#");
1320 if (len < valuelen) {
1322 value[valuelen] = 0;
1325 status = set_option(opt, value);
1328 if (status == ERR) {
1329 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1330 config_lineno, (int) optlen, opt, config_msg);
1331 config_errors = TRUE;
1334 /* Always keep going if errors are encountered. */
1339 load_option_file(const char *path)
1343 /* It's ok that the file doesn't exist. */
1344 file = fopen(path, "r");
1349 config_errors = FALSE;
1351 if (read_properties(file, " \t", read_option) == ERR ||
1352 config_errors == TRUE)
1353 fprintf(stderr, "Errors while loading %s.\n", path);
1359 const char *home = getenv("HOME");
1360 const char *tigrc_user = getenv("TIGRC_USER");
1361 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1362 char buf[SIZEOF_STR];
1364 add_builtin_run_requests();
1366 if (!tigrc_system) {
1367 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1371 load_option_file(tigrc_system);
1374 if (!home || !string_format(buf, "%s/.tigrc", home))
1378 load_option_file(tigrc_user);
1391 /* The display array of active views and the index of the current view. */
1392 static struct view *display[2];
1393 static unsigned int current_view;
1395 /* Reading from the prompt? */
1396 static bool input_mode = FALSE;
1398 #define foreach_displayed_view(view, i) \
1399 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1401 #define displayed_views() (display[1] != NULL ? 2 : 1)
1403 /* Current head and commit ID */
1404 static char ref_blob[SIZEOF_REF] = "";
1405 static char ref_commit[SIZEOF_REF] = "HEAD";
1406 static char ref_head[SIZEOF_REF] = "HEAD";
1409 const char *name; /* View name */
1410 const char *cmd_fmt; /* Default command line format */
1411 const char *cmd_env; /* Command line set via environment */
1412 const char *id; /* Points to either of ref_{head,commit,blob} */
1414 struct view_ops *ops; /* View operations */
1416 enum keymap keymap; /* What keymap does this view have */
1417 bool git_dir; /* Whether the view requires a git directory. */
1419 char cmd[SIZEOF_STR]; /* Command buffer */
1420 char ref[SIZEOF_REF]; /* Hovered commit reference */
1421 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1423 int height, width; /* The width and height of the main window */
1424 WINDOW *win; /* The main window */
1425 WINDOW *title; /* The title window living below the main window */
1428 unsigned long offset; /* Offset of the window top */
1429 unsigned long lineno; /* Current line number */
1432 char grep[SIZEOF_STR]; /* Search string */
1433 regex_t *regex; /* Pre-compiled regex */
1435 /* If non-NULL, points to the view that opened this view. If this view
1436 * is closed tig will switch back to the parent view. */
1437 struct view *parent;
1440 size_t lines; /* Total number of lines */
1441 struct line *line; /* Line index */
1442 size_t line_alloc; /* Total number of allocated lines */
1443 size_t line_size; /* Total number of used lines */
1444 unsigned int digits; /* Number of digits in the lines member. */
1447 struct line *curline; /* Line currently being drawn. */
1448 enum line_type curtype; /* Attribute currently used for drawing. */
1449 unsigned long col; /* Column when drawing. */
1457 /* What type of content being displayed. Used in the title bar. */
1459 /* Open and reads in all view content. */
1460 bool (*open)(struct view *view);
1461 /* Read one line; updates view->line. */
1462 bool (*read)(struct view *view, char *data);
1463 /* Draw one line; @lineno must be < view->height. */
1464 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1465 /* Depending on view handle a special requests. */
1466 enum request (*request)(struct view *view, enum request request, struct line *line);
1467 /* Search for regex in a line. */
1468 bool (*grep)(struct view *view, struct line *line);
1470 void (*select)(struct view *view, struct line *line);
1473 static struct view_ops blame_ops;
1474 static struct view_ops blob_ops;
1475 static struct view_ops help_ops;
1476 static struct view_ops log_ops;
1477 static struct view_ops main_ops;
1478 static struct view_ops pager_ops;
1479 static struct view_ops stage_ops;
1480 static struct view_ops status_ops;
1481 static struct view_ops tree_ops;
1483 #define VIEW_STR(name, cmd, env, ref, ops, map, git) \
1484 { name, cmd, #env, ref, ops, map, git }
1486 #define VIEW_(id, name, ops, git, ref) \
1487 VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1490 static struct view views[] = {
1491 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1492 VIEW_(DIFF, "diff", &pager_ops, TRUE, ref_commit),
1493 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1494 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1495 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1496 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1497 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1498 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1499 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1500 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1503 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1504 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1506 #define foreach_view(view, i) \
1507 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1509 #define view_is_displayed(view) \
1510 (view == display[0] || view == display[1])
1517 static int line_graphics[] = {
1518 /* LINE_GRAPHIC_VLINE: */ '|'
1522 set_view_attr(struct view *view, enum line_type type)
1524 if (!view->curline->selected && view->curtype != type) {
1525 wattrset(view->win, get_line_attr(type));
1526 wchgat(view->win, -1, 0, type, NULL);
1527 view->curtype = type;
1532 draw_chars(struct view *view, enum line_type type, const char *string,
1533 int max_len, bool use_tilde)
1537 int trimmed = FALSE;
1543 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1545 col = len = strlen(string);
1546 if (len > max_len) {
1550 col = len = max_len;
1555 set_view_attr(view, type);
1556 waddnstr(view->win, string, len);
1557 if (trimmed && use_tilde) {
1558 set_view_attr(view, LINE_DELIMITER);
1559 waddch(view->win, '~');
1567 draw_space(struct view *view, enum line_type type, int max, int spaces)
1569 static char space[] = " ";
1572 spaces = MIN(max, spaces);
1574 while (spaces > 0) {
1575 int len = MIN(spaces, sizeof(space) - 1);
1577 col += draw_chars(view, type, space, spaces, FALSE);
1585 draw_lineno(struct view *view, unsigned int lineno)
1588 int digits3 = view->digits < 3 ? 3 : view->digits;
1589 int max_number = MIN(digits3, STRING_SIZE(number));
1590 int max = view->width - view->col;
1593 if (max < max_number)
1596 lineno += view->offset + 1;
1597 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1598 static char fmt[] = "%1ld";
1600 if (view->digits <= 9)
1601 fmt[1] = '0' + digits3;
1603 if (!string_format(number, fmt, lineno))
1605 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1607 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1611 set_view_attr(view, LINE_DEFAULT);
1612 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1617 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1620 return view->width - view->col <= 0;
1624 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1626 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1627 return view->width - view->col <= 0;
1631 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1633 int max = view->width - view->col;
1639 set_view_attr(view, type);
1640 /* Using waddch() instead of waddnstr() ensures that
1641 * they'll be rendered correctly for the cursor line. */
1642 for (i = 0; i < size; i++)
1643 waddch(view->win, graphic[i]);
1647 waddch(view->win, ' ');
1651 return view->width - view->col <= 0;
1655 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1657 int max = MIN(view->width - view->col, len);
1661 col = draw_chars(view, type, text, max - 1, trim);
1663 col = draw_space(view, type, max - 1, max - 1);
1665 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1666 return view->width - view->col <= 0;
1670 draw_date(struct view *view, struct tm *time)
1672 char buf[DATE_COLS];
1677 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1678 date = timelen ? buf : NULL;
1680 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1684 draw_view_line(struct view *view, unsigned int lineno)
1687 bool selected = (view->offset + lineno == view->lineno);
1690 assert(view_is_displayed(view));
1692 if (view->offset + lineno >= view->lines)
1695 line = &view->line[view->offset + lineno];
1697 wmove(view->win, lineno, 0);
1699 view->curline = line;
1700 view->curtype = LINE_NONE;
1701 line->selected = FALSE;
1704 set_view_attr(view, LINE_CURSOR);
1705 line->selected = TRUE;
1706 view->ops->select(view, line);
1707 } else if (line->selected) {
1708 wclrtoeol(view->win);
1711 scrollok(view->win, FALSE);
1712 draw_ok = view->ops->draw(view, line, lineno);
1713 scrollok(view->win, TRUE);
1719 redraw_view_dirty(struct view *view)
1724 for (lineno = 0; lineno < view->height; lineno++) {
1725 struct line *line = &view->line[view->offset + lineno];
1731 if (!draw_view_line(view, lineno))
1737 redrawwin(view->win);
1739 wnoutrefresh(view->win);
1741 wrefresh(view->win);
1745 redraw_view_from(struct view *view, int lineno)
1747 assert(0 <= lineno && lineno < view->height);
1749 for (; lineno < view->height; lineno++) {
1750 if (!draw_view_line(view, lineno))
1754 redrawwin(view->win);
1756 wnoutrefresh(view->win);
1758 wrefresh(view->win);
1762 redraw_view(struct view *view)
1765 redraw_view_from(view, 0);
1770 update_view_title(struct view *view)
1772 char buf[SIZEOF_STR];
1773 char state[SIZEOF_STR];
1774 size_t bufpos = 0, statelen = 0;
1776 assert(view_is_displayed(view));
1778 if (view != VIEW(REQ_VIEW_STATUS) && (view->lines || view->pipe)) {
1779 unsigned int view_lines = view->offset + view->height;
1780 unsigned int lines = view->lines
1781 ? MIN(view_lines, view->lines) * 100 / view->lines
1784 string_format_from(state, &statelen, "- %s %d of %d (%d%%)",
1791 time_t secs = time(NULL) - view->start_time;
1793 /* Three git seconds are a long time ... */
1795 string_format_from(state, &statelen, " %lds", secs);
1799 string_format_from(buf, &bufpos, "[%s]", view->name);
1800 if (*view->ref && bufpos < view->width) {
1801 size_t refsize = strlen(view->ref);
1802 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
1804 if (minsize < view->width)
1805 refsize = view->width - minsize + 7;
1806 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
1809 if (statelen && bufpos < view->width) {
1810 string_format_from(buf, &bufpos, " %s", state);
1813 if (view == display[current_view])
1814 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
1816 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
1818 mvwaddnstr(view->title, 0, 0, buf, bufpos);
1819 wclrtoeol(view->title);
1820 wmove(view->title, 0, view->width - 1);
1823 wnoutrefresh(view->title);
1825 wrefresh(view->title);
1829 resize_display(void)
1832 struct view *base = display[0];
1833 struct view *view = display[1] ? display[1] : display[0];
1835 /* Setup window dimensions */
1837 getmaxyx(stdscr, base->height, base->width);
1839 /* Make room for the status window. */
1843 /* Horizontal split. */
1844 view->width = base->width;
1845 view->height = SCALE_SPLIT_VIEW(base->height);
1846 base->height -= view->height;
1848 /* Make room for the title bar. */
1852 /* Make room for the title bar. */
1857 foreach_displayed_view (view, i) {
1859 view->win = newwin(view->height, 0, offset, 0);
1861 die("Failed to create %s view", view->name);
1863 scrollok(view->win, TRUE);
1865 view->title = newwin(1, 0, offset + view->height, 0);
1867 die("Failed to create title window");
1870 wresize(view->win, view->height, view->width);
1871 mvwin(view->win, offset, 0);
1872 mvwin(view->title, offset + view->height, 0);
1875 offset += view->height + 1;
1880 redraw_display(void)
1885 foreach_displayed_view (view, i) {
1887 update_view_title(view);
1892 update_display_cursor(struct view *view)
1894 /* Move the cursor to the right-most column of the cursor line.
1896 * XXX: This could turn out to be a bit expensive, but it ensures that
1897 * the cursor does not jump around. */
1899 wmove(view->win, view->lineno - view->offset, view->width - 1);
1900 wrefresh(view->win);
1908 /* Scrolling backend */
1910 do_scroll_view(struct view *view, int lines)
1912 bool redraw_current_line = FALSE;
1914 /* The rendering expects the new offset. */
1915 view->offset += lines;
1917 assert(0 <= view->offset && view->offset < view->lines);
1920 /* Move current line into the view. */
1921 if (view->lineno < view->offset) {
1922 view->lineno = view->offset;
1923 redraw_current_line = TRUE;
1924 } else if (view->lineno >= view->offset + view->height) {
1925 view->lineno = view->offset + view->height - 1;
1926 redraw_current_line = TRUE;
1929 assert(view->offset <= view->lineno && view->lineno < view->lines);
1931 /* Redraw the whole screen if scrolling is pointless. */
1932 if (view->height < ABS(lines)) {
1936 int line = lines > 0 ? view->height - lines : 0;
1937 int end = line + ABS(lines);
1939 wscrl(view->win, lines);
1941 for (; line < end; line++) {
1942 if (!draw_view_line(view, line))
1946 if (redraw_current_line)
1947 draw_view_line(view, view->lineno - view->offset);
1950 redrawwin(view->win);
1951 wrefresh(view->win);
1955 /* Scroll frontend */
1957 scroll_view(struct view *view, enum request request)
1961 assert(view_is_displayed(view));
1964 case REQ_SCROLL_PAGE_DOWN:
1965 lines = view->height;
1966 case REQ_SCROLL_LINE_DOWN:
1967 if (view->offset + lines > view->lines)
1968 lines = view->lines - view->offset;
1970 if (lines == 0 || view->offset + view->height >= view->lines) {
1971 report("Cannot scroll beyond the last line");
1976 case REQ_SCROLL_PAGE_UP:
1977 lines = view->height;
1978 case REQ_SCROLL_LINE_UP:
1979 if (lines > view->offset)
1980 lines = view->offset;
1983 report("Cannot scroll beyond the first line");
1991 die("request %d not handled in switch", request);
1994 do_scroll_view(view, lines);
1999 move_view(struct view *view, enum request request)
2001 int scroll_steps = 0;
2005 case REQ_MOVE_FIRST_LINE:
2006 steps = -view->lineno;
2009 case REQ_MOVE_LAST_LINE:
2010 steps = view->lines - view->lineno - 1;
2013 case REQ_MOVE_PAGE_UP:
2014 steps = view->height > view->lineno
2015 ? -view->lineno : -view->height;
2018 case REQ_MOVE_PAGE_DOWN:
2019 steps = view->lineno + view->height >= view->lines
2020 ? view->lines - view->lineno - 1 : view->height;
2032 die("request %d not handled in switch", request);
2035 if (steps <= 0 && view->lineno == 0) {
2036 report("Cannot move beyond the first line");
2039 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2040 report("Cannot move beyond the last line");
2044 /* Move the current line */
2045 view->lineno += steps;
2046 assert(0 <= view->lineno && view->lineno < view->lines);
2048 /* Check whether the view needs to be scrolled */
2049 if (view->lineno < view->offset ||
2050 view->lineno >= view->offset + view->height) {
2051 scroll_steps = steps;
2052 if (steps < 0 && -steps > view->offset) {
2053 scroll_steps = -view->offset;
2055 } else if (steps > 0) {
2056 if (view->lineno == view->lines - 1 &&
2057 view->lines > view->height) {
2058 scroll_steps = view->lines - view->offset - 1;
2059 if (scroll_steps >= view->height)
2060 scroll_steps -= view->height - 1;
2065 if (!view_is_displayed(view)) {
2066 view->offset += scroll_steps;
2067 assert(0 <= view->offset && view->offset < view->lines);
2068 view->ops->select(view, &view->line[view->lineno]);
2072 /* Repaint the old "current" line if we be scrolling */
2073 if (ABS(steps) < view->height)
2074 draw_view_line(view, view->lineno - steps - view->offset);
2077 do_scroll_view(view, scroll_steps);
2081 /* Draw the current line */
2082 draw_view_line(view, view->lineno - view->offset);
2084 redrawwin(view->win);
2085 wrefresh(view->win);
2094 static void search_view(struct view *view, enum request request);
2097 find_next_line(struct view *view, unsigned long lineno, struct line *line)
2099 assert(view_is_displayed(view));
2101 if (!view->ops->grep(view, line))
2104 if (lineno - view->offset >= view->height) {
2105 view->offset = lineno;
2106 view->lineno = lineno;
2110 unsigned long old_lineno = view->lineno - view->offset;
2112 view->lineno = lineno;
2113 draw_view_line(view, old_lineno);
2115 draw_view_line(view, view->lineno - view->offset);
2116 redrawwin(view->win);
2117 wrefresh(view->win);
2120 report("Line %ld matches '%s'", lineno + 1, view->grep);
2125 find_next(struct view *view, enum request request)
2127 unsigned long lineno = view->lineno;
2132 report("No previous search");
2134 search_view(view, request);
2144 case REQ_SEARCH_BACK:
2153 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2154 lineno += direction;
2156 /* Note, lineno is unsigned long so will wrap around in which case it
2157 * will become bigger than view->lines. */
2158 for (; lineno < view->lines; lineno += direction) {
2159 struct line *line = &view->line[lineno];
2161 if (find_next_line(view, lineno, line))
2165 report("No match found for '%s'", view->grep);
2169 search_view(struct view *view, enum request request)
2174 regfree(view->regex);
2177 view->regex = calloc(1, sizeof(*view->regex));
2182 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2183 if (regex_err != 0) {
2184 char buf[SIZEOF_STR] = "unknown error";
2186 regerror(regex_err, view->regex, buf, sizeof(buf));
2187 report("Search failed: %s", buf);
2191 string_copy(view->grep, opt_search);
2193 find_next(view, request);
2197 * Incremental updating
2201 reset_view(struct view *view)
2205 for (i = 0; i < view->lines; i++)
2206 free(view->line[i].data);
2213 view->line_size = 0;
2214 view->line_alloc = 0;
2219 end_update(struct view *view, bool force)
2223 while (!view->ops->read(view, NULL))
2226 set_nonblocking_input(FALSE);
2227 if (view->pipe == stdin)
2235 begin_update(struct view *view, bool refresh)
2238 string_copy(view->cmd, opt_cmd);
2240 /* When running random commands, initially show the
2241 * command in the title. However, it maybe later be
2242 * overwritten if a commit line is selected. */
2243 if (view == VIEW(REQ_VIEW_PAGER))
2244 string_copy(view->ref, view->cmd);
2248 } else if (view == VIEW(REQ_VIEW_TREE)) {
2249 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2250 char path[SIZEOF_STR];
2252 if (strcmp(view->vid, view->id))
2253 opt_path[0] = path[0] = 0;
2254 else if (sq_quote(path, 0, opt_path) >= sizeof(path))
2257 if (!string_format(view->cmd, format, view->id, path))
2260 } else if (!refresh) {
2261 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2262 const char *id = view->id;
2264 if (!string_format(view->cmd, format, id, id, id, id, id))
2267 /* Put the current ref_* value to the view title ref
2268 * member. This is needed by the blob view. Most other
2269 * views sets it automatically after loading because the
2270 * first line is a commit line. */
2271 string_copy_rev(view->ref, view->id);
2274 /* Special case for the pager view. */
2276 view->pipe = opt_pipe;
2279 view->pipe = popen(view->cmd, "r");
2285 set_nonblocking_input(TRUE);
2287 string_copy_rev(view->vid, view->id);
2289 view->start_time = time(NULL);
2294 #define ITEM_CHUNK_SIZE 256
2296 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2298 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2299 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2301 if (mem == NULL || num_chunks != num_chunks_new) {
2302 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2303 mem = realloc(mem, *size * item_size);
2309 static struct line *
2310 realloc_lines(struct view *view, size_t line_size)
2312 size_t alloc = view->line_alloc;
2313 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2314 sizeof(*view->line));
2320 view->line_alloc = alloc;
2321 view->line_size = line_size;
2326 update_view(struct view *view)
2328 char in_buffer[BUFSIZ];
2329 char out_buffer[BUFSIZ * 2];
2331 /* The number of lines to read. If too low it will cause too much
2332 * redrawing (and possible flickering), if too high responsiveness
2334 unsigned long lines = view->height;
2335 int redraw_from = -1;
2340 /* Only redraw if lines are visible. */
2341 if (view->offset + view->height >= view->lines)
2342 redraw_from = view->lines - view->offset;
2344 /* FIXME: This is probably not perfect for backgrounded views. */
2345 if (!realloc_lines(view, view->lines + lines))
2348 while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) {
2349 size_t linelen = strlen(line);
2352 line[linelen - 1] = 0;
2354 if (opt_iconv != ICONV_NONE) {
2355 ICONV_CONST char *inbuf = line;
2356 size_t inlen = linelen;
2358 char *outbuf = out_buffer;
2359 size_t outlen = sizeof(out_buffer);
2363 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2364 if (ret != (size_t) -1) {
2366 linelen = strlen(out_buffer);
2370 if (!view->ops->read(view, line))
2380 lines = view->lines;
2381 for (digits = 0; lines; digits++)
2384 /* Keep the displayed view in sync with line number scaling. */
2385 if (digits != view->digits) {
2386 view->digits = digits;
2391 if (ferror(view->pipe) && errno != 0) {
2392 report("Failed to read: %s", strerror(errno));
2393 end_update(view, TRUE);
2395 } else if (feof(view->pipe)) {
2397 end_update(view, FALSE);
2400 if (view == VIEW(REQ_VIEW_TREE)) {
2401 /* Clear the view and redraw everything since the tree sorting
2402 * might have rearranged things. */
2405 } else if (redraw_from >= 0) {
2406 /* If this is an incremental update, redraw the previous line
2407 * since for commits some members could have changed when
2408 * loading the main view. */
2409 if (redraw_from > 0)
2412 /* Since revision graph visualization requires knowledge
2413 * about the parent commit, it causes a further one-off
2414 * needed to be redrawn for incremental updates. */
2415 if (redraw_from > 0 && opt_rev_graph)
2418 /* Incrementally draw avoids flickering. */
2419 redraw_view_from(view, redraw_from);
2422 if (view == VIEW(REQ_VIEW_BLAME))
2423 redraw_view_dirty(view);
2425 /* Update the title _after_ the redraw so that if the redraw picks up a
2426 * commit reference in view->ref it'll be available here. */
2427 update_view_title(view);
2431 report("Allocation failure");
2432 end_update(view, TRUE);
2436 static struct line *
2437 add_line_data(struct view *view, void *data, enum line_type type)
2439 struct line *line = &view->line[view->lines++];
2441 memset(line, 0, sizeof(*line));
2448 static struct line *
2449 add_line_text(struct view *view, const char *text, enum line_type type)
2451 char *data = text ? strdup(text) : NULL;
2453 return data ? add_line_data(view, data, type) : NULL;
2462 OPEN_DEFAULT = 0, /* Use default view switching. */
2463 OPEN_SPLIT = 1, /* Split current view. */
2464 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2465 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2466 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2467 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2471 open_view(struct view *prev, enum request request, enum open_flags flags)
2473 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2474 bool split = !!(flags & OPEN_SPLIT);
2475 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH));
2476 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2477 struct view *view = VIEW(request);
2478 int nviews = displayed_views();
2479 struct view *base_view = display[0];
2481 if (view == prev && nviews == 1 && !reload) {
2482 report("Already in %s view", view->name);
2486 if (view->git_dir && !opt_git_dir[0]) {
2487 report("The %s view is disabled in pager view", view->name);
2495 } else if (!nomaximize) {
2496 /* Maximize the current view. */
2497 memset(display, 0, sizeof(display));
2499 display[current_view] = view;
2502 /* Resize the view when switching between split- and full-screen,
2503 * or when switching between two different full-screen views. */
2504 if (nviews != displayed_views() ||
2505 (nviews == 1 && base_view != display[0]))
2509 end_update(view, TRUE);
2511 if (view->ops->open) {
2512 if (!view->ops->open(view)) {
2513 report("Failed to load %s view", view->name);
2517 } else if ((reload || strcmp(view->vid, view->id)) &&
2518 !begin_update(view, flags & OPEN_REFRESH)) {
2519 report("Failed to load %s view", view->name);
2523 if (split && prev->lineno - prev->offset >= prev->height) {
2524 /* Take the title line into account. */
2525 int lines = prev->lineno - prev->offset - prev->height + 1;
2527 /* Scroll the view that was split if the current line is
2528 * outside the new limited view. */
2529 do_scroll_view(prev, lines);
2532 if (prev && view != prev) {
2533 if (split && !backgrounded) {
2534 /* "Blur" the previous view. */
2535 update_view_title(prev);
2538 view->parent = prev;
2541 if (view->pipe && view->lines == 0) {
2542 /* Clear the old view and let the incremental updating refill
2546 } else if (view_is_displayed(view)) {
2551 /* If the view is backgrounded the above calls to report()
2552 * won't redraw the view title. */
2554 update_view_title(view);
2558 run_confirm(const char *cmd, const char *prompt)
2560 bool confirmation = prompt_yesno(prompt);
2565 return confirmation;
2569 open_external_viewer(const char *cmd)
2571 def_prog_mode(); /* save current tty modes */
2572 endwin(); /* restore original tty modes */
2574 fprintf(stderr, "Press Enter to continue");
2581 open_mergetool(const char *file)
2583 char cmd[SIZEOF_STR];
2584 char file_sq[SIZEOF_STR];
2586 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2587 string_format(cmd, "git mergetool %s", file_sq)) {
2588 open_external_viewer(cmd);
2593 open_editor(bool from_root, const char *file)
2595 char cmd[SIZEOF_STR];
2596 char file_sq[SIZEOF_STR];
2598 char *prefix = from_root ? opt_cdup : "";
2600 editor = getenv("GIT_EDITOR");
2601 if (!editor && *opt_editor)
2602 editor = opt_editor;
2604 editor = getenv("VISUAL");
2606 editor = getenv("EDITOR");
2610 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2611 string_format(cmd, "%s %s%s", editor, prefix, file_sq)) {
2612 open_external_viewer(cmd);
2617 open_run_request(enum request request)
2619 struct run_request *req = get_run_request(request);
2620 char buf[SIZEOF_STR * 2];
2625 report("Unknown run request");
2633 char *next = strstr(cmd, "%(");
2634 int len = next - cmd;
2641 } else if (!strncmp(next, "%(head)", 7)) {
2644 } else if (!strncmp(next, "%(commit)", 9)) {
2647 } else if (!strncmp(next, "%(blob)", 7)) {
2651 report("Unknown replacement in run request: `%s`", req->cmd);
2655 if (!string_format_from(buf, &bufpos, "%.*s%s", len, cmd, value))
2659 next = strchr(next, ')') + 1;
2663 open_external_viewer(buf);
2667 * User request switch noodle
2671 view_driver(struct view *view, enum request request)
2675 if (request == REQ_NONE) {
2680 if (request > REQ_NONE) {
2681 open_run_request(request);
2682 /* FIXME: When all views can refresh always do this. */
2683 if (view == VIEW(REQ_VIEW_STATUS) ||
2684 view == VIEW(REQ_VIEW_MAIN) ||
2685 view == VIEW(REQ_VIEW_LOG) ||
2686 view == VIEW(REQ_VIEW_STAGE))
2687 request = REQ_REFRESH;
2692 if (view && view->lines) {
2693 request = view->ops->request(view, request, &view->line[view->lineno]);
2694 if (request == REQ_NONE)
2701 case REQ_MOVE_PAGE_UP:
2702 case REQ_MOVE_PAGE_DOWN:
2703 case REQ_MOVE_FIRST_LINE:
2704 case REQ_MOVE_LAST_LINE:
2705 move_view(view, request);
2708 case REQ_SCROLL_LINE_DOWN:
2709 case REQ_SCROLL_LINE_UP:
2710 case REQ_SCROLL_PAGE_DOWN:
2711 case REQ_SCROLL_PAGE_UP:
2712 scroll_view(view, request);
2715 case REQ_VIEW_BLAME:
2717 report("No file chosen, press %s to open tree view",
2718 get_key(REQ_VIEW_TREE));
2721 open_view(view, request, OPEN_DEFAULT);
2726 report("No file chosen, press %s to open tree view",
2727 get_key(REQ_VIEW_TREE));
2730 open_view(view, request, OPEN_DEFAULT);
2733 case REQ_VIEW_PAGER:
2734 if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2735 report("No pager content, press %s to run command from prompt",
2736 get_key(REQ_PROMPT));
2739 open_view(view, request, OPEN_DEFAULT);
2742 case REQ_VIEW_STAGE:
2743 if (!VIEW(REQ_VIEW_STAGE)->lines) {
2744 report("No stage content, press %s to open the status view and choose file",
2745 get_key(REQ_VIEW_STATUS));
2748 open_view(view, request, OPEN_DEFAULT);
2751 case REQ_VIEW_STATUS:
2752 if (opt_is_inside_work_tree == FALSE) {
2753 report("The status view requires a working tree");
2756 open_view(view, request, OPEN_DEFAULT);
2764 open_view(view, request, OPEN_DEFAULT);
2769 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2771 if ((view == VIEW(REQ_VIEW_DIFF) &&
2772 view->parent == VIEW(REQ_VIEW_MAIN)) ||
2773 (view == VIEW(REQ_VIEW_DIFF) &&
2774 view->parent == VIEW(REQ_VIEW_BLAME)) ||
2775 (view == VIEW(REQ_VIEW_STAGE) &&
2776 view->parent == VIEW(REQ_VIEW_STATUS)) ||
2777 (view == VIEW(REQ_VIEW_BLOB) &&
2778 view->parent == VIEW(REQ_VIEW_TREE))) {
2781 view = view->parent;
2782 line = view->lineno;
2783 move_view(view, request);
2784 if (view_is_displayed(view))
2785 update_view_title(view);
2786 if (line != view->lineno)
2787 view->ops->request(view, REQ_ENTER,
2788 &view->line[view->lineno]);
2791 move_view(view, request);
2797 int nviews = displayed_views();
2798 int next_view = (current_view + 1) % nviews;
2800 if (next_view == current_view) {
2801 report("Only one view is displayed");
2805 current_view = next_view;
2806 /* Blur out the title of the previous view. */
2807 update_view_title(view);
2812 report("Refreshing is not yet supported for the %s view", view->name);
2816 if (displayed_views() == 2)
2817 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
2820 case REQ_TOGGLE_LINENO:
2821 opt_line_number = !opt_line_number;
2825 case REQ_TOGGLE_DATE:
2826 opt_date = !opt_date;
2830 case REQ_TOGGLE_AUTHOR:
2831 opt_author = !opt_author;
2835 case REQ_TOGGLE_REV_GRAPH:
2836 opt_rev_graph = !opt_rev_graph;
2840 case REQ_TOGGLE_REFS:
2841 opt_show_refs = !opt_show_refs;
2846 case REQ_SEARCH_BACK:
2847 search_view(view, request);
2852 find_next(view, request);
2855 case REQ_STOP_LOADING:
2856 for (i = 0; i < ARRAY_SIZE(views); i++) {
2859 report("Stopped loading the %s view", view->name),
2860 end_update(view, TRUE);
2864 case REQ_SHOW_VERSION:
2865 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
2868 case REQ_SCREEN_RESIZE:
2871 case REQ_SCREEN_REDRAW:
2876 report("Nothing to edit");
2880 report("Nothing to enter");
2883 case REQ_VIEW_CLOSE:
2884 /* XXX: Mark closed views by letting view->parent point to the
2885 * view itself. Parents to closed view should never be
2888 view->parent->parent != view->parent) {
2889 memset(display, 0, sizeof(display));
2891 display[current_view] = view->parent;
2892 view->parent = view;
2903 report("Unknown key, press 'h' for help");
2916 pager_draw(struct view *view, struct line *line, unsigned int lineno)
2918 char *text = line->data;
2920 if (opt_line_number && draw_lineno(view, lineno))
2923 draw_text(view, line->type, text, TRUE);
2928 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
2930 char refbuf[SIZEOF_STR];
2934 if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id))
2937 pipe = popen(refbuf, "r");
2941 if ((ref = fgets(refbuf, sizeof(refbuf), pipe)))
2942 ref = chomp_string(ref);
2948 /* This is the only fatal call, since it can "corrupt" the buffer. */
2949 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
2956 add_pager_refs(struct view *view, struct line *line)
2958 char buf[SIZEOF_STR];
2959 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
2961 size_t bufpos = 0, refpos = 0;
2962 const char *sep = "Refs: ";
2963 bool is_tag = FALSE;
2965 assert(line->type == LINE_COMMIT);
2967 refs = get_refs(commit_id);
2969 if (view == VIEW(REQ_VIEW_DIFF))
2970 goto try_add_describe_ref;
2975 struct ref *ref = refs[refpos];
2976 const char *fmt = ref->tag ? "%s[%s]" :
2977 ref->remote ? "%s<%s>" : "%s%s";
2979 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
2984 } while (refs[refpos++]->next);
2986 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
2987 try_add_describe_ref:
2988 /* Add <tag>-g<commit_id> "fake" reference. */
2989 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
2996 if (!realloc_lines(view, view->line_size + 1))
2999 add_line_text(view, buf, LINE_PP_REFS);
3003 pager_read(struct view *view, char *data)
3010 line = add_line_text(view, data, get_line_type(data));
3014 if (line->type == LINE_COMMIT &&
3015 (view == VIEW(REQ_VIEW_DIFF) ||
3016 view == VIEW(REQ_VIEW_LOG)))
3017 add_pager_refs(view, line);
3023 pager_request(struct view *view, enum request request, struct line *line)
3027 if (request != REQ_ENTER)
3030 if (line->type == LINE_COMMIT &&
3031 (view == VIEW(REQ_VIEW_LOG) ||
3032 view == VIEW(REQ_VIEW_PAGER))) {
3033 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3037 /* Always scroll the view even if it was split. That way
3038 * you can use Enter to scroll through the log view and
3039 * split open each commit diff. */
3040 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3042 /* FIXME: A minor workaround. Scrolling the view will call report("")
3043 * but if we are scrolling a non-current view this won't properly
3044 * update the view title. */
3046 update_view_title(view);
3052 pager_grep(struct view *view, struct line *line)
3055 char *text = line->data;
3060 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3067 pager_select(struct view *view, struct line *line)
3069 if (line->type == LINE_COMMIT) {
3070 char *text = (char *)line->data + STRING_SIZE("commit ");
3072 if (view != VIEW(REQ_VIEW_PAGER))
3073 string_copy_rev(view->ref, text);
3074 string_copy_rev(ref_commit, text);
3078 static struct view_ops pager_ops = {
3089 log_request(struct view *view, enum request request, struct line *line)
3094 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3097 return pager_request(view, request, line);
3101 static struct view_ops log_ops = {
3117 help_open(struct view *view)
3120 int lines = ARRAY_SIZE(req_info) + 2;
3123 if (view->lines > 0)
3126 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3127 if (!req_info[i].request)
3130 lines += run_requests + 1;
3132 view->line = calloc(lines, sizeof(*view->line));
3136 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3138 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3141 if (req_info[i].request == REQ_NONE)
3144 if (!req_info[i].request) {
3145 add_line_text(view, "", LINE_DEFAULT);
3146 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3150 key = get_key(req_info[i].request);
3152 key = "(no key defined)";
3154 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
3157 add_line_text(view, buf, LINE_DEFAULT);
3161 add_line_text(view, "", LINE_DEFAULT);
3162 add_line_text(view, "External commands:", LINE_DEFAULT);
3165 for (i = 0; i < run_requests; i++) {
3166 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3172 key = get_key_name(req->key);
3174 key = "(no key defined)";
3176 if (!string_format(buf, " %-10s %-14s `%s`",
3177 keymap_table[req->keymap].name,
3181 add_line_text(view, buf, LINE_DEFAULT);
3187 static struct view_ops help_ops = {
3202 struct tree_stack_entry {
3203 struct tree_stack_entry *prev; /* Entry below this in the stack */
3204 unsigned long lineno; /* Line number to restore */
3205 char *name; /* Position of name in opt_path */
3208 /* The top of the path stack. */
3209 static struct tree_stack_entry *tree_stack = NULL;
3210 unsigned long tree_lineno = 0;
3213 pop_tree_stack_entry(void)
3215 struct tree_stack_entry *entry = tree_stack;
3217 tree_lineno = entry->lineno;
3219 tree_stack = entry->prev;
3224 push_tree_stack_entry(const char *name, unsigned long lineno)
3226 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3227 size_t pathlen = strlen(opt_path);
3232 entry->prev = tree_stack;
3233 entry->name = opt_path + pathlen;
3236 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3237 pop_tree_stack_entry();
3241 /* Move the current line to the first tree entry. */
3243 entry->lineno = lineno;
3246 /* Parse output from git-ls-tree(1):
3248 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3249 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3250 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3251 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3254 #define SIZEOF_TREE_ATTR \
3255 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3257 #define TREE_UP_FORMAT "040000 tree %s\t.."
3260 tree_compare_entry(enum line_type type1, const char *name1,
3261 enum line_type type2, const char *name2)
3263 if (type1 != type2) {
3264 if (type1 == LINE_TREE_DIR)
3269 return strcmp(name1, name2);
3273 tree_path(struct line *line)
3275 const char *path = line->data;
3277 return path + SIZEOF_TREE_ATTR;
3281 tree_read(struct view *view, char *text)
3283 size_t textlen = text ? strlen(text) : 0;
3284 char buf[SIZEOF_STR];
3286 enum line_type type;
3287 bool first_read = view->lines == 0;
3291 if (textlen <= SIZEOF_TREE_ATTR)
3294 type = text[STRING_SIZE("100644 ")] == 't'
3295 ? LINE_TREE_DIR : LINE_TREE_FILE;
3298 /* Add path info line */
3299 if (!string_format(buf, "Directory path /%s", opt_path) ||
3300 !realloc_lines(view, view->line_size + 1) ||
3301 !add_line_text(view, buf, LINE_DEFAULT))
3304 /* Insert "link" to parent directory. */
3306 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
3307 !realloc_lines(view, view->line_size + 1) ||
3308 !add_line_text(view, buf, LINE_TREE_DIR))
3313 /* Strip the path part ... */
3315 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3316 size_t striplen = strlen(opt_path);
3317 char *path = text + SIZEOF_TREE_ATTR;
3319 if (pathlen > striplen)
3320 memmove(path, path + striplen,
3321 pathlen - striplen + 1);
3324 /* Skip "Directory ..." and ".." line. */
3325 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
3326 struct line *line = &view->line[pos];
3327 const char *path1 = tree_path(line);
3328 char *path2 = text + SIZEOF_TREE_ATTR;
3329 int cmp = tree_compare_entry(line->type, path1, type, path2);
3334 text = strdup(text);
3338 if (view->lines > pos)
3339 memmove(&view->line[pos + 1], &view->line[pos],
3340 (view->lines - pos) * sizeof(*line));
3342 line = &view->line[pos];
3349 if (!add_line_text(view, text, type))
3352 if (tree_lineno > view->lineno) {
3353 view->lineno = tree_lineno;
3361 tree_request(struct view *view, enum request request, struct line *line)
3363 enum open_flags flags;
3365 if (request == REQ_VIEW_BLAME) {
3366 const char *filename = tree_path(line);
3368 if (line->type != LINE_TREE_FILE) {
3369 report("Blame only supported for files");
3373 string_copy(opt_ref, view->vid);
3374 string_format(opt_file, "%s%s", opt_path, filename);
3377 if (request == REQ_TREE_PARENT) {
3380 request = REQ_ENTER;
3381 line = &view->line[1];
3383 /* quit view if at top of tree */
3384 return REQ_VIEW_CLOSE;
3387 if (request != REQ_ENTER)
3390 /* Cleanup the stack if the tree view is at a different tree. */
3391 while (!*opt_path && tree_stack)
3392 pop_tree_stack_entry();
3394 switch (line->type) {
3396 /* Depending on whether it is a subdir or parent (updir?) link
3397 * mangle the path buffer. */
3398 if (line == &view->line[1] && *opt_path) {
3399 pop_tree_stack_entry();
3402 const char *basename = tree_path(line);
3404 push_tree_stack_entry(basename, view->lineno);
3407 /* Trees and subtrees share the same ID, so they are not not
3408 * unique like blobs. */
3409 flags = OPEN_RELOAD;
3410 request = REQ_VIEW_TREE;
3413 case LINE_TREE_FILE:
3414 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3415 request = REQ_VIEW_BLOB;
3422 open_view(view, request, flags);
3423 if (request == REQ_VIEW_TREE) {
3424 view->lineno = tree_lineno;
3431 tree_select(struct view *view, struct line *line)
3433 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3435 if (line->type == LINE_TREE_FILE) {
3436 string_copy_rev(ref_blob, text);
3438 } else if (line->type != LINE_TREE_DIR) {
3442 string_copy_rev(view->ref, text);
3445 static struct view_ops tree_ops = {
3456 blob_read(struct view *view, char *line)
3460 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3463 static struct view_ops blob_ops = {
3476 * Loading the blame view is a two phase job:
3478 * 1. File content is read either using opt_file from the
3479 * filesystem or using git-cat-file.
3480 * 2. Then blame information is incrementally added by
3481 * reading output from git-blame.
3484 struct blame_commit {
3485 char id[SIZEOF_REV]; /* SHA1 ID. */
3486 char title[128]; /* First line of the commit message. */
3487 char author[75]; /* Author of the commit. */
3488 struct tm time; /* Date from the author ident. */
3489 char filename[128]; /* Name of file. */
3493 struct blame_commit *commit;
3494 unsigned int header:1;
3498 #define BLAME_CAT_FILE_CMD "git cat-file blob %s:%s"
3499 #define BLAME_INCREMENTAL_CMD "git blame --incremental %s -- %s"
3502 blame_open(struct view *view)
3504 char path[SIZEOF_STR];
3505 char ref[SIZEOF_STR] = "";
3507 if (sq_quote(path, 0, opt_file) >= sizeof(path))
3510 if (*opt_ref && sq_quote(ref, 0, opt_ref) >= sizeof(ref))
3514 if (!string_format(view->cmd, BLAME_CAT_FILE_CMD, ref, path))
3517 view->pipe = fopen(opt_file, "r");
3519 !string_format(view->cmd, BLAME_CAT_FILE_CMD, "HEAD", path))
3524 view->pipe = popen(view->cmd, "r");
3528 if (!string_format(view->cmd, BLAME_INCREMENTAL_CMD, ref, path))
3532 string_format(view->ref, "%s ...", opt_file);
3533 string_copy_rev(view->vid, opt_file);
3534 set_nonblocking_input(TRUE);
3535 view->start_time = time(NULL);
3540 static struct blame_commit *
3541 get_blame_commit(struct view *view, const char *id)
3545 for (i = 0; i < view->lines; i++) {
3546 struct blame *blame = view->line[i].data;
3551 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3552 return blame->commit;
3556 struct blame_commit *commit = calloc(1, sizeof(*commit));
3559 string_ncopy(commit->id, id, SIZEOF_REV);
3565 parse_number(const char **posref, size_t *number, size_t min, size_t max)
3567 const char *pos = *posref;
3570 pos = strchr(pos + 1, ' ');
3571 if (!pos || !isdigit(pos[1]))
3573 *number = atoi(pos + 1);
3574 if (*number < min || *number > max)
3581 static struct blame_commit *
3582 parse_blame_commit(struct view *view, const char *text, int *blamed)
3584 struct blame_commit *commit;
3585 struct blame *blame;
3586 const char *pos = text + SIZEOF_REV - 1;
3590 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3593 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3594 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3597 commit = get_blame_commit(view, text);
3603 struct line *line = &view->line[lineno + group - 1];
3606 blame->commit = commit;
3607 blame->header = !group;
3615 blame_read_file(struct view *view, const char *line)
3620 if (view->lines > 0)
3621 pipe = popen(view->cmd, "r");
3622 else if (!view->parent)
3623 die("No blame exist for %s", view->vid);
3626 report("Failed to load blame data");
3635 size_t linelen = strlen(line);
3636 struct blame *blame = malloc(sizeof(*blame) + linelen);
3638 blame->commit = NULL;
3639 strncpy(blame->text, line, linelen);
3640 blame->text[linelen] = 0;
3641 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3646 match_blame_header(const char *name, char **line)
3648 size_t namelen = strlen(name);
3649 bool matched = !strncmp(name, *line, namelen);
3658 blame_read(struct view *view, char *line)
3660 static struct blame_commit *commit = NULL;
3661 static int blamed = 0;
3662 static time_t author_time;
3665 return blame_read_file(view, line);
3671 string_format(view->ref, "%s", view->vid);
3672 if (view_is_displayed(view)) {
3673 update_view_title(view);
3674 redraw_view_from(view, 0);
3680 commit = parse_blame_commit(view, line, &blamed);
3681 string_format(view->ref, "%s %2d%%", view->vid,
3682 blamed * 100 / view->lines);
3684 } else if (match_blame_header("author ", &line)) {
3685 string_ncopy(commit->author, line, strlen(line));
3687 } else if (match_blame_header("author-time ", &line)) {
3688 author_time = (time_t) atol(line);
3690 } else if (match_blame_header("author-tz ", &line)) {
3693 tz = ('0' - line[1]) * 60 * 60 * 10;
3694 tz += ('0' - line[2]) * 60 * 60;
3695 tz += ('0' - line[3]) * 60;
3696 tz += ('0' - line[4]) * 60;
3702 gmtime_r(&author_time, &commit->time);
3704 } else if (match_blame_header("summary ", &line)) {
3705 string_ncopy(commit->title, line, strlen(line));
3707 } else if (match_blame_header("filename ", &line)) {
3708 string_ncopy(commit->filename, line, strlen(line));
3716 blame_draw(struct view *view, struct line *line, unsigned int lineno)
3718 struct blame *blame = line->data;
3719 struct tm *time = NULL;
3720 const char *id = NULL, *author = NULL;
3722 if (blame->commit && *blame->commit->filename) {
3723 id = blame->commit->id;
3724 author = blame->commit->author;
3725 time = &blame->commit->time;
3728 if (opt_date && draw_date(view, time))
3732 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
3735 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
3738 if (draw_lineno(view, lineno))
3741 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
3746 blame_request(struct view *view, enum request request, struct line *line)
3748 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3749 struct blame *blame = line->data;
3753 if (!blame->commit) {
3754 report("No commit loaded yet");
3758 if (!strcmp(blame->commit->id, NULL_ID)) {
3759 char path[SIZEOF_STR];
3761 if (sq_quote(path, 0, view->vid) >= sizeof(path))
3763 string_format(opt_cmd, "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s 2>/dev/null", path);
3766 open_view(view, REQ_VIEW_DIFF, flags);
3777 blame_grep(struct view *view, struct line *line)
3779 struct blame *blame = line->data;
3780 struct blame_commit *commit = blame->commit;
3783 #define MATCH(text, on) \
3784 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3787 char buf[DATE_COLS + 1];
3789 if (MATCH(commit->title, 1) ||
3790 MATCH(commit->author, opt_author) ||
3791 MATCH(commit->id, opt_date))
3794 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
3799 return MATCH(blame->text, 1);
3805 blame_select(struct view *view, struct line *line)
3807 struct blame *blame = line->data;
3808 struct blame_commit *commit = blame->commit;
3813 if (!strcmp(commit->id, NULL_ID))
3814 string_ncopy(ref_commit, "HEAD", 4);
3816 string_copy_rev(ref_commit, commit->id);
3819 static struct view_ops blame_ops = {
3837 char rev[SIZEOF_REV];
3838 char name[SIZEOF_STR];
3842 char rev[SIZEOF_REV];
3843 char name[SIZEOF_STR];
3847 static char status_onbranch[SIZEOF_STR];
3848 static struct status stage_status;
3849 static enum line_type stage_line_type;
3850 static size_t stage_chunks;
3851 static int *stage_chunk;
3853 /* This should work even for the "On branch" line. */
3855 status_has_none(struct view *view, struct line *line)
3857 return line < view->line + view->lines && !line[1].data;
3860 /* Get fields from the diff line:
3861 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3864 status_get_diff(struct status *file, const char *buf, size_t bufsize)
3866 const char *old_mode = buf + 1;
3867 const char *new_mode = buf + 8;
3868 const char *old_rev = buf + 15;
3869 const char *new_rev = buf + 56;
3870 const char *status = buf + 97;
3873 old_mode[-1] != ':' ||
3874 new_mode[-1] != ' ' ||
3875 old_rev[-1] != ' ' ||
3876 new_rev[-1] != ' ' ||
3880 file->status = *status;
3882 string_copy_rev(file->old.rev, old_rev);
3883 string_copy_rev(file->new.rev, new_rev);
3885 file->old.mode = strtoul(old_mode, NULL, 8);
3886 file->new.mode = strtoul(new_mode, NULL, 8);
3888 file->old.name[0] = file->new.name[0] = 0;
3894 status_run(struct view *view, const char cmd[], char status, enum line_type type)
3896 struct status *file = NULL;
3897 struct status *unmerged = NULL;
3898 char buf[SIZEOF_STR * 4];
3902 pipe = popen(cmd, "r");
3906 add_line_data(view, NULL, type);
3908 while (!feof(pipe) && !ferror(pipe)) {
3912 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3915 bufsize += readsize;
3917 /* Process while we have NUL chars. */
3918 while ((sep = memchr(buf, 0, bufsize))) {
3919 size_t sepsize = sep - buf + 1;
3922 if (!realloc_lines(view, view->line_size + 1))
3925 file = calloc(1, sizeof(*file));
3929 add_line_data(view, file, type);
3932 /* Parse diff info part. */
3934 file->status = status;
3936 string_copy(file->old.rev, NULL_ID);
3938 } else if (!file->status) {
3939 if (!status_get_diff(file, buf, sepsize))
3943 memmove(buf, sep + 1, bufsize);
3945 sep = memchr(buf, 0, bufsize);
3948 sepsize = sep - buf + 1;
3950 /* Collapse all 'M'odified entries that
3951 * follow a associated 'U'nmerged entry.
3953 if (file->status == 'U') {
3956 } else if (unmerged) {
3957 int collapse = !strcmp(buf, unmerged->new.name);
3968 /* Grab the old name for rename/copy. */
3969 if (!*file->old.name &&
3970 (file->status == 'R' || file->status == 'C')) {
3971 sepsize = sep - buf + 1;
3972 string_ncopy(file->old.name, buf, sepsize);
3974 memmove(buf, sep + 1, bufsize);
3976 sep = memchr(buf, 0, bufsize);
3979 sepsize = sep - buf + 1;
3982 /* git-ls-files just delivers a NUL separated
3983 * list of file names similar to the second half
3984 * of the git-diff-* output. */
3985 string_ncopy(file->new.name, buf, sepsize);
3986 if (!*file->old.name)
3987 string_copy(file->old.name, file->new.name);
3989 memmove(buf, sep + 1, bufsize);
4000 if (!view->line[view->lines - 1].data)
4001 add_line_data(view, NULL, LINE_STAT_NONE);
4007 /* Don't show unmerged entries in the staged section. */
4008 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD"
4009 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
4010 #define STATUS_LIST_OTHER_CMD \
4011 "git ls-files -z --others --exclude-standard"
4012 #define STATUS_LIST_NO_HEAD_CMD \
4013 "git ls-files -z --cached --exclude-standard"
4015 #define STATUS_DIFF_INDEX_SHOW_CMD \
4016 "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null"
4018 #define STATUS_DIFF_FILES_SHOW_CMD \
4019 "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null"
4021 #define STATUS_DIFF_NO_HEAD_SHOW_CMD \
4022 "git diff --no-color --patch-with-stat /dev/null %s 2>/dev/null"
4024 /* First parse staged info using git-diff-index(1), then parse unstaged
4025 * info using git-diff-files(1), and finally untracked files using
4026 * git-ls-files(1). */
4028 status_open(struct view *view)
4030 unsigned long prev_lineno = view->lineno;
4034 if (!realloc_lines(view, view->line_size + 7))
4037 add_line_data(view, NULL, LINE_STAT_HEAD);
4039 string_copy(status_onbranch, "Initial commit");
4040 else if (!*opt_head)
4041 string_copy(status_onbranch, "Not currently on any branch");
4042 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4045 system("git update-index -q --refresh >/dev/null 2>/dev/null");
4048 if (!status_run(view, STATUS_LIST_NO_HEAD_CMD, 'A', LINE_STAT_STAGED))
4050 } else if (!status_run(view, STATUS_DIFF_INDEX_CMD, 0, LINE_STAT_STAGED)) {
4054 if (!status_run(view, STATUS_DIFF_FILES_CMD, 0, LINE_STAT_UNSTAGED) ||
4055 !status_run(view, STATUS_LIST_OTHER_CMD, '?', LINE_STAT_UNTRACKED))
4058 /* If all went well restore the previous line number to stay in
4059 * the context or select a line with something that can be
4061 if (prev_lineno >= view->lines)
4062 prev_lineno = view->lines - 1;
4063 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4065 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4068 /* If the above fails, always skip the "On branch" line. */
4069 if (prev_lineno < view->lines)
4070 view->lineno = prev_lineno;
4074 if (view->lineno < view->offset)
4075 view->offset = view->lineno;
4076 else if (view->offset + view->height <= view->lineno)
4077 view->offset = view->lineno - view->height + 1;
4083 status_draw(struct view *view, struct line *line, unsigned int lineno)
4085 struct status *status = line->data;
4086 enum line_type type;
4090 switch (line->type) {
4091 case LINE_STAT_STAGED:
4092 type = LINE_STAT_SECTION;
4093 text = "Changes to be committed:";
4096 case LINE_STAT_UNSTAGED:
4097 type = LINE_STAT_SECTION;
4098 text = "Changed but not updated:";
4101 case LINE_STAT_UNTRACKED:
4102 type = LINE_STAT_SECTION;
4103 text = "Untracked files:";
4106 case LINE_STAT_NONE:
4107 type = LINE_DEFAULT;
4108 text = " (no files)";
4111 case LINE_STAT_HEAD:
4112 type = LINE_STAT_HEAD;
4113 text = status_onbranch;
4120 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4122 buf[0] = status->status;
4123 if (draw_text(view, line->type, buf, TRUE))
4125 type = LINE_DEFAULT;
4126 text = status->new.name;
4129 draw_text(view, type, text, TRUE);
4134 status_enter(struct view *view, struct line *line)
4136 struct status *status = line->data;
4137 char oldpath[SIZEOF_STR] = "";
4138 char newpath[SIZEOF_STR] = "";
4141 enum open_flags split;
4143 if (line->type == LINE_STAT_NONE ||
4144 (!status && line[1].type == LINE_STAT_NONE)) {
4145 report("No file to diff");
4150 if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath))
4152 /* Diffs for unmerged entries are empty when pasing the
4153 * new path, so leave it empty. */
4154 if (status->status != 'U' &&
4155 sq_quote(newpath, 0, status->new.name) >= sizeof(newpath))
4160 line->type != LINE_STAT_UNTRACKED &&
4161 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
4164 switch (line->type) {
4165 case LINE_STAT_STAGED:
4167 if (!string_format_from(opt_cmd, &cmdsize,
4168 STATUS_DIFF_NO_HEAD_SHOW_CMD,
4172 if (!string_format_from(opt_cmd, &cmdsize,
4173 STATUS_DIFF_INDEX_SHOW_CMD,
4179 info = "Staged changes to %s";
4181 info = "Staged changes";
4184 case LINE_STAT_UNSTAGED:
4185 if (!string_format_from(opt_cmd, &cmdsize,
4186 STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath))
4189 info = "Unstaged changes to %s";
4191 info = "Unstaged changes";
4194 case LINE_STAT_UNTRACKED:
4199 report("No file to show");
4203 if (!suffixcmp(status->new.name, -1, "/")) {
4204 report("Cannot display a directory");
4208 opt_pipe = fopen(status->new.name, "r");
4209 info = "Untracked file %s";
4212 case LINE_STAT_HEAD:
4216 die("line type %d not handled in switch", line->type);
4219 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4220 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | split);
4221 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4223 stage_status = *status;
4225 memset(&stage_status, 0, sizeof(stage_status));
4228 stage_line_type = line->type;
4230 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4237 status_exists(struct status *status, enum line_type type)
4239 struct view *view = VIEW(REQ_VIEW_STATUS);
4242 for (line = view->line; line < view->line + view->lines; line++) {
4243 struct status *pos = line->data;
4245 if (line->type == type && pos &&
4246 !strcmp(status->new.name, pos->new.name))
4255 status_update_prepare(enum line_type type)
4257 char cmd[SIZEOF_STR];
4261 type != LINE_STAT_UNTRACKED &&
4262 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4266 case LINE_STAT_STAGED:
4267 string_add(cmd, cmdsize, "git update-index -z --index-info");
4270 case LINE_STAT_UNSTAGED:
4271 case LINE_STAT_UNTRACKED:
4272 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
4276 die("line type %d not handled in switch", type);
4279 return popen(cmd, "w");
4283 status_update_write(FILE *pipe, struct status *status, enum line_type type)
4285 char buf[SIZEOF_STR];
4290 case LINE_STAT_STAGED:
4291 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4294 status->old.name, 0))
4298 case LINE_STAT_UNSTAGED:
4299 case LINE_STAT_UNTRACKED:
4300 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4305 die("line type %d not handled in switch", type);
4308 while (!ferror(pipe) && written < bufsize) {
4309 written += fwrite(buf + written, 1, bufsize - written, pipe);
4312 return written == bufsize;
4316 status_update_file(struct status *status, enum line_type type)
4318 FILE *pipe = status_update_prepare(type);
4324 result = status_update_write(pipe, status, type);
4330 status_update_files(struct view *view, struct line *line)
4332 FILE *pipe = status_update_prepare(line->type);
4334 struct line *pos = view->line + view->lines;
4341 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4344 for (file = 0, done = 0; result && file < files; line++, file++) {
4345 int almost_done = file * 100 / files;
4347 if (almost_done > done) {
4349 string_format(view->ref, "updating file %u of %u (%d%% done)",
4351 update_view_title(view);
4353 result = status_update_write(pipe, line->data, line->type);
4361 status_update(struct view *view)
4363 struct line *line = &view->line[view->lineno];
4365 assert(view->lines);
4368 /* This should work even for the "On branch" line. */
4369 if (line < view->line + view->lines && !line[1].data) {
4370 report("Nothing to update");
4374 if (!status_update_files(view, line + 1)) {
4375 report("Failed to update file status");
4379 } else if (!status_update_file(line->data, line->type)) {
4380 report("Failed to update file status");
4388 status_revert(struct status *status, enum line_type type, bool has_none)
4390 if (!status || type != LINE_STAT_UNSTAGED) {
4391 if (type == LINE_STAT_STAGED) {
4392 report("Cannot revert changes to staged files");
4393 } else if (type == LINE_STAT_UNTRACKED) {
4394 report("Cannot revert changes to untracked files");
4395 } else if (has_none) {
4396 report("Nothing to revert");
4398 report("Cannot revert changes to multiple files");
4403 char cmd[SIZEOF_STR];
4404 char file_sq[SIZEOF_STR];
4406 if (sq_quote(file_sq, 0, status->old.name) >= sizeof(file_sq) ||
4407 !string_format(cmd, "git checkout -- %s%s", opt_cdup, file_sq))
4410 return run_confirm(cmd, "Are you sure you want to overwrite any changes?");
4415 status_request(struct view *view, enum request request, struct line *line)
4417 struct status *status = line->data;
4420 case REQ_STATUS_UPDATE:
4421 if (!status_update(view))
4425 case REQ_STATUS_REVERT:
4426 if (!status_revert(status, line->type, status_has_none(view, line)))
4430 case REQ_STATUS_MERGE:
4431 if (!status || status->status != 'U') {
4432 report("Merging only possible for files with unmerged status ('U').");
4435 open_mergetool(status->new.name);
4441 if (status->status == 'D') {
4442 report("File has been deleted.");
4446 open_editor(status->status != '?', status->new.name);
4449 case REQ_VIEW_BLAME:
4451 string_copy(opt_file, status->new.name);
4457 /* After returning the status view has been split to
4458 * show the stage view. No further reloading is
4460 status_enter(view, line);
4464 /* Simply reload the view. */
4471 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4477 status_select(struct view *view, struct line *line)
4479 struct status *status = line->data;
4480 char file[SIZEOF_STR] = "all files";
4484 if (status && !string_format(file, "'%s'", status->new.name))
4487 if (!status && line[1].type == LINE_STAT_NONE)
4490 switch (line->type) {
4491 case LINE_STAT_STAGED:
4492 text = "Press %s to unstage %s for commit";
4495 case LINE_STAT_UNSTAGED:
4496 text = "Press %s to stage %s for commit";
4499 case LINE_STAT_UNTRACKED:
4500 text = "Press %s to stage %s for addition";
4503 case LINE_STAT_HEAD:
4504 case LINE_STAT_NONE:
4505 text = "Nothing to update";
4509 die("line type %d not handled in switch", line->type);
4512 if (status && status->status == 'U') {
4513 text = "Press %s to resolve conflict in %s";
4514 key = get_key(REQ_STATUS_MERGE);
4517 key = get_key(REQ_STATUS_UPDATE);
4520 string_format(view->ref, text, key, file);
4524 status_grep(struct view *view, struct line *line)
4526 struct status *status = line->data;
4527 enum { S_STATUS, S_NAME, S_END } state;
4534 for (state = S_STATUS; state < S_END; state++) {
4538 case S_NAME: text = status->new.name; break;
4540 buf[0] = status->status;
4548 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4555 static struct view_ops status_ops = {
4567 stage_diff_line(FILE *pipe, struct line *line)
4569 const char *buf = line->data;
4570 size_t bufsize = strlen(buf);
4573 while (!ferror(pipe) && written < bufsize) {
4574 written += fwrite(buf + written, 1, bufsize - written, pipe);
4579 return written == bufsize;
4583 stage_diff_write(FILE *pipe, struct line *line, struct line *end)
4585 while (line < end) {
4586 if (!stage_diff_line(pipe, line++))
4588 if (line->type == LINE_DIFF_CHUNK ||
4589 line->type == LINE_DIFF_HEADER)
4596 static struct line *
4597 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4599 for (; view->line < line; line--)
4600 if (line->type == type)
4607 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
4609 char cmd[SIZEOF_STR];
4611 struct line *diff_hdr;
4614 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4619 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4622 if (!string_format_from(cmd, &cmdsize,
4623 "git apply --whitespace=nowarn %s %s - && "
4624 "git update-index -q --unmerged --refresh 2>/dev/null",
4625 revert ? "" : "--cached",
4626 revert || stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
4629 pipe = popen(cmd, "w");
4633 if (!stage_diff_write(pipe, diff_hdr, chunk) ||
4634 !stage_diff_write(pipe, chunk, view->line + view->lines))
4639 return chunk ? TRUE : FALSE;
4643 stage_update(struct view *view, struct line *line)
4645 struct line *chunk = NULL;
4647 if (!opt_no_head && stage_line_type != LINE_STAT_UNTRACKED)
4648 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4651 if (!stage_apply_chunk(view, chunk, FALSE)) {
4652 report("Failed to apply chunk");
4656 } else if (!stage_status.status) {
4657 view = VIEW(REQ_VIEW_STATUS);
4659 for (line = view->line; line < view->line + view->lines; line++)
4660 if (line->type == stage_line_type)
4663 if (!status_update_files(view, line + 1)) {
4664 report("Failed to update files");
4668 } else if (!status_update_file(&stage_status, stage_line_type)) {
4669 report("Failed to update file");
4677 stage_revert(struct view *view, struct line *line)
4679 struct line *chunk = NULL;
4681 if (!opt_no_head && stage_line_type == LINE_STAT_UNSTAGED)
4682 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4685 if (!prompt_yesno("Are you sure you want to revert changes?"))
4688 if (!stage_apply_chunk(view, chunk, TRUE)) {
4689 report("Failed to revert chunk");
4695 return status_revert(stage_status.status ? &stage_status : NULL,
4696 stage_line_type, FALSE);
4702 stage_next(struct view *view, struct line *line)
4706 if (!stage_chunks) {
4707 static size_t alloc = 0;
4710 for (line = view->line; line < view->line + view->lines; line++) {
4711 if (line->type != LINE_DIFF_CHUNK)
4714 tmp = realloc_items(stage_chunk, &alloc,
4715 stage_chunks, sizeof(*tmp));
4717 report("Allocation failure");
4722 stage_chunk[stage_chunks++] = line - view->line;
4726 for (i = 0; i < stage_chunks; i++) {
4727 if (stage_chunk[i] > view->lineno) {
4728 do_scroll_view(view, stage_chunk[i] - view->lineno);
4729 report("Chunk %d of %d", i + 1, stage_chunks);
4734 report("No next chunk found");
4738 stage_request(struct view *view, enum request request, struct line *line)
4741 case REQ_STATUS_UPDATE:
4742 if (!stage_update(view, line))
4746 case REQ_STATUS_REVERT:
4747 if (!stage_revert(view, line))
4751 case REQ_STAGE_NEXT:
4752 if (stage_line_type == LINE_STAT_UNTRACKED) {
4753 report("File is untracked; press %s to add",
4754 get_key(REQ_STATUS_UPDATE));
4757 stage_next(view, line);
4761 if (!stage_status.new.name[0])
4763 if (stage_status.status == 'D') {
4764 report("File has been deleted.");
4768 open_editor(stage_status.status != '?', stage_status.new.name);
4772 /* Reload everything ... */
4775 case REQ_VIEW_BLAME:
4776 if (stage_status.new.name[0]) {
4777 string_copy(opt_file, stage_status.new.name);
4783 return pager_request(view, request, line);
4789 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4791 /* Check whether the staged entry still exists, and close the
4792 * stage view if it doesn't. */
4793 if (!status_exists(&stage_status, stage_line_type))
4794 return REQ_VIEW_CLOSE;
4796 if (stage_line_type == LINE_STAT_UNTRACKED) {
4797 if (!suffixcmp(stage_status.new.name, -1, "/")) {
4798 report("Cannot display a directory");
4802 opt_pipe = fopen(stage_status.new.name, "r");
4804 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
4809 static struct view_ops stage_ops = {
4825 char id[SIZEOF_REV]; /* SHA1 ID. */
4826 char title[128]; /* First line of the commit message. */
4827 char author[75]; /* Author of the commit. */
4828 struct tm time; /* Date from the author ident. */
4829 struct ref **refs; /* Repository references. */
4830 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
4831 size_t graph_size; /* The width of the graph array. */
4832 bool has_parents; /* Rewritten --parents seen. */
4835 /* Size of rev graph with no "padding" columns */
4836 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
4839 struct rev_graph *prev, *next, *parents;
4840 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
4842 struct commit *commit;
4844 unsigned int boundary:1;
4847 /* Parents of the commit being visualized. */
4848 static struct rev_graph graph_parents[4];
4850 /* The current stack of revisions on the graph. */
4851 static struct rev_graph graph_stacks[4] = {
4852 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
4853 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
4854 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
4855 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
4859 graph_parent_is_merge(struct rev_graph *graph)
4861 return graph->parents->size > 1;
4865 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
4867 struct commit *commit = graph->commit;
4869 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
4870 commit->graph[commit->graph_size++] = symbol;
4874 clear_rev_graph(struct rev_graph *graph)
4876 graph->boundary = 0;
4877 graph->size = graph->pos = 0;
4878 graph->commit = NULL;
4879 memset(graph->parents, 0, sizeof(*graph->parents));
4883 done_rev_graph(struct rev_graph *graph)
4885 if (graph_parent_is_merge(graph) &&
4886 graph->pos < graph->size - 1 &&
4887 graph->next->size == graph->size + graph->parents->size - 1) {
4888 size_t i = graph->pos + graph->parents->size - 1;
4890 graph->commit->graph_size = i * 2;
4891 while (i < graph->next->size - 1) {
4892 append_to_rev_graph(graph, ' ');
4893 append_to_rev_graph(graph, '\\');
4898 clear_rev_graph(graph);
4902 push_rev_graph(struct rev_graph *graph, const char *parent)
4906 /* "Collapse" duplicate parents lines.
4908 * FIXME: This needs to also update update the drawn graph but
4909 * for now it just serves as a method for pruning graph lines. */
4910 for (i = 0; i < graph->size; i++)
4911 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
4914 if (graph->size < SIZEOF_REVITEMS) {
4915 string_copy_rev(graph->rev[graph->size++], parent);
4920 get_rev_graph_symbol(struct rev_graph *graph)
4924 if (graph->boundary)
4925 symbol = REVGRAPH_BOUND;
4926 else if (graph->parents->size == 0)
4927 symbol = REVGRAPH_INIT;
4928 else if (graph_parent_is_merge(graph))
4929 symbol = REVGRAPH_MERGE;
4930 else if (graph->pos >= graph->size)
4931 symbol = REVGRAPH_BRANCH;
4933 symbol = REVGRAPH_COMMIT;
4939 draw_rev_graph(struct rev_graph *graph)
4942 chtype separator, line;
4944 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
4945 static struct rev_filler fillers[] = {
4951 chtype symbol = get_rev_graph_symbol(graph);
4952 struct rev_filler *filler;
4955 if (opt_line_graphics)
4956 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
4958 filler = &fillers[DEFAULT];
4960 for (i = 0; i < graph->pos; i++) {
4961 append_to_rev_graph(graph, filler->line);
4962 if (graph_parent_is_merge(graph->prev) &&
4963 graph->prev->pos == i)
4964 filler = &fillers[RSHARP];
4966 append_to_rev_graph(graph, filler->separator);
4969 /* Place the symbol for this revision. */
4970 append_to_rev_graph(graph, symbol);
4972 if (graph->prev->size > graph->size)
4973 filler = &fillers[RDIAG];
4975 filler = &fillers[DEFAULT];
4979 for (; i < graph->size; i++) {
4980 append_to_rev_graph(graph, filler->separator);
4981 append_to_rev_graph(graph, filler->line);
4982 if (graph_parent_is_merge(graph->prev) &&
4983 i < graph->prev->pos + graph->parents->size)
4984 filler = &fillers[RSHARP];
4985 if (graph->prev->size > graph->size)
4986 filler = &fillers[LDIAG];
4989 if (graph->prev->size > graph->size) {
4990 append_to_rev_graph(graph, filler->separator);
4991 if (filler->line != ' ')
4992 append_to_rev_graph(graph, filler->line);
4996 /* Prepare the next rev graph */
4998 prepare_rev_graph(struct rev_graph *graph)
5002 /* First, traverse all lines of revisions up to the active one. */
5003 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5004 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5007 push_rev_graph(graph->next, graph->rev[graph->pos]);
5010 /* Interleave the new revision parent(s). */
5011 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5012 push_rev_graph(graph->next, graph->parents->rev[i]);
5014 /* Lastly, put any remaining revisions. */
5015 for (i = graph->pos + 1; i < graph->size; i++)
5016 push_rev_graph(graph->next, graph->rev[i]);
5020 update_rev_graph(struct rev_graph *graph)
5022 /* If this is the finalizing update ... */
5024 prepare_rev_graph(graph);
5026 /* Graph visualization needs a one rev look-ahead,
5027 * so the first update doesn't visualize anything. */
5028 if (!graph->prev->commit)
5031 draw_rev_graph(graph->prev);
5032 done_rev_graph(graph->prev->prev);
5041 main_draw(struct view *view, struct line *line, unsigned int lineno)
5043 struct commit *commit = line->data;
5045 if (!*commit->author)
5048 if (opt_date && draw_date(view, &commit->time))
5052 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5055 if (opt_rev_graph && commit->graph_size &&
5056 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5059 if (opt_show_refs && commit->refs) {
5063 enum line_type type;
5065 if (commit->refs[i]->head)
5066 type = LINE_MAIN_HEAD;
5067 else if (commit->refs[i]->ltag)
5068 type = LINE_MAIN_LOCAL_TAG;
5069 else if (commit->refs[i]->tag)
5070 type = LINE_MAIN_TAG;
5071 else if (commit->refs[i]->tracked)
5072 type = LINE_MAIN_TRACKED;
5073 else if (commit->refs[i]->remote)
5074 type = LINE_MAIN_REMOTE;
5076 type = LINE_MAIN_REF;
5078 if (draw_text(view, type, "[", TRUE) ||
5079 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5080 draw_text(view, type, "]", TRUE))
5083 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5085 } while (commit->refs[i++]->next);
5088 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5092 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5094 main_read(struct view *view, char *line)
5096 static struct rev_graph *graph = graph_stacks;
5097 enum line_type type;
5098 struct commit *commit;
5103 if (!view->lines && !view->parent)
5104 die("No revisions match the given arguments.");
5105 if (view->lines > 0) {
5106 commit = view->line[view->lines - 1].data;
5107 if (!*commit->author) {
5110 graph->commit = NULL;
5113 update_rev_graph(graph);
5115 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5116 clear_rev_graph(&graph_stacks[i]);
5120 type = get_line_type(line);
5121 if (type == LINE_COMMIT) {
5122 commit = calloc(1, sizeof(struct commit));
5126 line += STRING_SIZE("commit ");
5128 graph->boundary = 1;
5132 string_copy_rev(commit->id, line);
5133 commit->refs = get_refs(commit->id);
5134 graph->commit = commit;
5135 add_line_data(view, commit, LINE_MAIN_COMMIT);
5137 while ((line = strchr(line, ' '))) {
5139 push_rev_graph(graph->parents, line);
5140 commit->has_parents = TRUE;
5147 commit = view->line[view->lines - 1].data;
5151 if (commit->has_parents)
5153 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5158 /* Parse author lines where the name may be empty:
5159 * author <email@address.tld> 1138474660 +0100
5161 char *ident = line + STRING_SIZE("author ");
5162 char *nameend = strchr(ident, '<');
5163 char *emailend = strchr(ident, '>');
5165 if (!nameend || !emailend)
5168 update_rev_graph(graph);
5169 graph = graph->next;
5171 *nameend = *emailend = 0;
5172 ident = chomp_string(ident);
5174 ident = chomp_string(nameend + 1);
5179 string_ncopy(commit->author, ident, strlen(ident));
5181 /* Parse epoch and timezone */
5182 if (emailend[1] == ' ') {
5183 char *secs = emailend + 2;
5184 char *zone = strchr(secs, ' ');
5185 time_t time = (time_t) atol(secs);
5187 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5191 tz = ('0' - zone[1]) * 60 * 60 * 10;
5192 tz += ('0' - zone[2]) * 60 * 60;
5193 tz += ('0' - zone[3]) * 60;
5194 tz += ('0' - zone[4]) * 60;
5202 gmtime_r(&time, &commit->time);
5207 /* Fill in the commit title if it has not already been set. */
5208 if (commit->title[0])
5211 /* Require titles to start with a non-space character at the
5212 * offset used by git log. */
5213 if (strncmp(line, " ", 4))
5216 /* Well, if the title starts with a whitespace character,
5217 * try to be forgiving. Otherwise we end up with no title. */
5218 while (isspace(*line))
5222 /* FIXME: More graceful handling of titles; append "..." to
5223 * shortened titles, etc. */
5225 string_ncopy(commit->title, line, strlen(line));
5232 main_request(struct view *view, enum request request, struct line *line)
5234 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5238 open_view(view, REQ_VIEW_DIFF, flags);
5242 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5252 grep_refs(struct ref **refs, regex_t *regex)
5260 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5262 } while (refs[i++]->next);
5268 main_grep(struct view *view, struct line *line)
5270 struct commit *commit = line->data;
5271 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5272 char buf[DATE_COLS + 1];
5275 for (state = S_TITLE; state < S_END; state++) {
5279 case S_TITLE: text = commit->title; break;
5283 text = commit->author;
5288 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5295 if (grep_refs(commit->refs, view->regex) == TRUE)
5302 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5310 main_select(struct view *view, struct line *line)
5312 struct commit *commit = line->data;
5314 string_copy_rev(view->ref, commit->id);
5315 string_copy_rev(ref_commit, view->ref);
5318 static struct view_ops main_ops = {
5330 * Unicode / UTF-8 handling
5332 * NOTE: Much of the following code for dealing with unicode is derived from
5333 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5334 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5337 /* I've (over)annotated a lot of code snippets because I am not entirely
5338 * confident that the approach taken by this small UTF-8 interface is correct.
5342 unicode_width(unsigned long c)
5345 (c <= 0x115f /* Hangul Jamo */
5348 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5350 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5351 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5352 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5353 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5354 || (c >= 0xffe0 && c <= 0xffe6)
5355 || (c >= 0x20000 && c <= 0x2fffd)
5356 || (c >= 0x30000 && c <= 0x3fffd)))
5360 return opt_tab_size;
5365 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5366 * Illegal bytes are set one. */
5367 static const unsigned char utf8_bytes[256] = {
5368 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,
5369 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,
5370 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,
5371 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,
5372 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,
5373 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,
5374 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,
5375 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,
5378 /* Decode UTF-8 multi-byte representation into a unicode character. */
5379 static inline unsigned long
5380 utf8_to_unicode(const char *string, size_t length)
5382 unsigned long unicode;
5386 unicode = string[0];
5389 unicode = (string[0] & 0x1f) << 6;
5390 unicode += (string[1] & 0x3f);
5393 unicode = (string[0] & 0x0f) << 12;
5394 unicode += ((string[1] & 0x3f) << 6);
5395 unicode += (string[2] & 0x3f);
5398 unicode = (string[0] & 0x0f) << 18;
5399 unicode += ((string[1] & 0x3f) << 12);
5400 unicode += ((string[2] & 0x3f) << 6);
5401 unicode += (string[3] & 0x3f);
5404 unicode = (string[0] & 0x0f) << 24;
5405 unicode += ((string[1] & 0x3f) << 18);
5406 unicode += ((string[2] & 0x3f) << 12);
5407 unicode += ((string[3] & 0x3f) << 6);
5408 unicode += (string[4] & 0x3f);
5411 unicode = (string[0] & 0x01) << 30;
5412 unicode += ((string[1] & 0x3f) << 24);
5413 unicode += ((string[2] & 0x3f) << 18);
5414 unicode += ((string[3] & 0x3f) << 12);
5415 unicode += ((string[4] & 0x3f) << 6);
5416 unicode += (string[5] & 0x3f);
5419 die("Invalid unicode length");
5422 /* Invalid characters could return the special 0xfffd value but NUL
5423 * should be just as good. */
5424 return unicode > 0xffff ? 0 : unicode;
5427 /* Calculates how much of string can be shown within the given maximum width
5428 * and sets trimmed parameter to non-zero value if all of string could not be
5429 * shown. If the reserve flag is TRUE, it will reserve at least one
5430 * trailing character, which can be useful when drawing a delimiter.
5432 * Returns the number of bytes to output from string to satisfy max_width. */
5434 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5436 const char *start = string;
5437 const char *end = strchr(string, '\0');
5438 unsigned char last_bytes = 0;
5439 size_t last_ucwidth = 0;
5444 while (string < end) {
5445 int c = *(unsigned char *) string;
5446 unsigned char bytes = utf8_bytes[c];
5448 unsigned long unicode;
5450 if (string + bytes > end)
5453 /* Change representation to figure out whether
5454 * it is a single- or double-width character. */
5456 unicode = utf8_to_unicode(string, bytes);
5457 /* FIXME: Graceful handling of invalid unicode character. */
5461 ucwidth = unicode_width(unicode);
5463 if (*width > max_width) {
5466 if (reserve && *width == max_width) {
5467 string -= last_bytes;
5468 *width -= last_ucwidth;
5475 last_ucwidth = ucwidth;
5478 return string - start;
5486 /* Whether or not the curses interface has been initialized. */
5487 static bool cursed = FALSE;
5489 /* The status window is used for polling keystrokes. */
5490 static WINDOW *status_win;
5492 static bool status_empty = TRUE;
5494 /* Update status and title window. */
5496 report(const char *msg, ...)
5498 struct view *view = display[current_view];
5504 char buf[SIZEOF_STR];
5507 va_start(args, msg);
5508 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5509 buf[sizeof(buf) - 1] = 0;
5510 buf[sizeof(buf) - 2] = '.';
5511 buf[sizeof(buf) - 3] = '.';
5512 buf[sizeof(buf) - 4] = '.';
5518 if (!status_empty || *msg) {
5521 va_start(args, msg);
5523 wmove(status_win, 0, 0);
5525 vwprintw(status_win, msg, args);
5526 status_empty = FALSE;
5528 status_empty = TRUE;
5530 wclrtoeol(status_win);
5531 wrefresh(status_win);
5536 update_view_title(view);
5537 update_display_cursor(view);
5540 /* Controls when nodelay should be in effect when polling user input. */
5542 set_nonblocking_input(bool loading)
5544 static unsigned int loading_views;
5546 if ((loading == FALSE && loading_views-- == 1) ||
5547 (loading == TRUE && loading_views++ == 0))
5548 nodelay(status_win, loading);
5556 /* Initialize the curses library */
5557 if (isatty(STDIN_FILENO)) {
5558 cursed = !!initscr();
5561 /* Leave stdin and stdout alone when acting as a pager. */
5562 opt_tty = fopen("/dev/tty", "r+");
5564 die("Failed to open /dev/tty");
5565 cursed = !!newterm(NULL, opt_tty, opt_tty);
5569 die("Failed to initialize curses");
5571 nonl(); /* Tell curses not to do NL->CR/NL on output */
5572 cbreak(); /* Take input chars one at a time, no wait for \n */
5573 noecho(); /* Don't echo input */
5574 leaveok(stdscr, TRUE);
5579 getmaxyx(stdscr, y, x);
5580 status_win = newwin(1, 0, y - 1, 0);
5582 die("Failed to create status window");
5584 /* Enable keyboard mapping */
5585 keypad(status_win, TRUE);
5586 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5588 TABSIZE = opt_tab_size;
5589 if (opt_line_graphics) {
5590 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5595 prompt_yesno(const char *prompt)
5597 enum { WAIT, STOP, CANCEL } status = WAIT;
5598 bool answer = FALSE;
5600 while (status == WAIT) {
5606 foreach_view (view, i)
5611 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
5612 wclrtoeol(status_win);
5614 /* Refresh, accept single keystroke of input */
5615 key = wgetch(status_win);
5639 /* Clear the status window */
5640 status_empty = FALSE;
5647 read_prompt(const char *prompt)
5649 enum { READING, STOP, CANCEL } status = READING;
5650 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
5653 while (status == READING) {
5659 foreach_view (view, i)
5664 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5665 wclrtoeol(status_win);
5667 /* Refresh, accept single keystroke of input */
5668 key = wgetch(status_win);
5673 status = pos ? STOP : CANCEL;
5691 if (pos >= sizeof(buf)) {
5692 report("Input string too long");
5697 buf[pos++] = (char) key;
5701 /* Clear the status window */
5702 status_empty = FALSE;
5705 if (status == CANCEL)
5714 * Repository references
5717 static struct ref *refs = NULL;
5718 static size_t refs_alloc = 0;
5719 static size_t refs_size = 0;
5721 /* Id <-> ref store */
5722 static struct ref ***id_refs = NULL;
5723 static size_t id_refs_alloc = 0;
5724 static size_t id_refs_size = 0;
5727 compare_refs(const void *ref1_, const void *ref2_)
5729 const struct ref *ref1 = *(const struct ref **)ref1_;
5730 const struct ref *ref2 = *(const struct ref **)ref2_;
5732 if (ref1->tag != ref2->tag)
5733 return ref2->tag - ref1->tag;
5734 if (ref1->ltag != ref2->ltag)
5735 return ref2->ltag - ref2->ltag;
5736 if (ref1->head != ref2->head)
5737 return ref2->head - ref1->head;
5738 if (ref1->tracked != ref2->tracked)
5739 return ref2->tracked - ref1->tracked;
5740 if (ref1->remote != ref2->remote)
5741 return ref2->remote - ref1->remote;
5742 return strcmp(ref1->name, ref2->name);
5745 static struct ref **
5746 get_refs(const char *id)
5748 struct ref ***tmp_id_refs;
5749 struct ref **ref_list = NULL;
5750 size_t ref_list_alloc = 0;
5751 size_t ref_list_size = 0;
5754 for (i = 0; i < id_refs_size; i++)
5755 if (!strcmp(id, id_refs[i][0]->id))
5758 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
5763 id_refs = tmp_id_refs;
5765 for (i = 0; i < refs_size; i++) {
5768 if (strcmp(id, refs[i].id))
5771 tmp = realloc_items(ref_list, &ref_list_alloc,
5772 ref_list_size + 1, sizeof(*ref_list));
5780 ref_list[ref_list_size] = &refs[i];
5781 /* XXX: The properties of the commit chains ensures that we can
5782 * safely modify the shared ref. The repo references will
5783 * always be similar for the same id. */
5784 ref_list[ref_list_size]->next = 1;
5790 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
5791 ref_list[ref_list_size - 1]->next = 0;
5792 id_refs[id_refs_size++] = ref_list;
5799 read_ref(char *id, size_t idlen, char *name, size_t namelen)
5804 bool remote = FALSE;
5805 bool tracked = FALSE;
5806 bool check_replace = FALSE;
5809 if (!prefixcmp(name, "refs/tags/")) {
5810 if (!suffixcmp(name, namelen, "^{}")) {
5813 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
5814 check_replace = TRUE;
5820 namelen -= STRING_SIZE("refs/tags/");
5821 name += STRING_SIZE("refs/tags/");
5823 } else if (!prefixcmp(name, "refs/remotes/")) {
5825 namelen -= STRING_SIZE("refs/remotes/");
5826 name += STRING_SIZE("refs/remotes/");
5827 tracked = !strcmp(opt_remote, name);
5829 } else if (!prefixcmp(name, "refs/heads/")) {
5830 namelen -= STRING_SIZE("refs/heads/");
5831 name += STRING_SIZE("refs/heads/");
5832 head = !strncmp(opt_head, name, namelen);
5834 } else if (!strcmp(name, "HEAD")) {
5835 opt_no_head = FALSE;
5839 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
5840 /* it's an annotated tag, replace the previous sha1 with the
5841 * resolved commit id; relies on the fact git-ls-remote lists
5842 * the commit id of an annotated tag right before the commit id
5844 refs[refs_size - 1].ltag = ltag;
5845 string_copy_rev(refs[refs_size - 1].id, id);
5849 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
5853 ref = &refs[refs_size++];
5854 ref->name = malloc(namelen + 1);
5858 strncpy(ref->name, name, namelen);
5859 ref->name[namelen] = 0;
5863 ref->remote = remote;
5864 ref->tracked = tracked;
5865 string_copy_rev(ref->id, id);
5873 const char *cmd_env = getenv("TIG_LS_REMOTE");
5874 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
5879 while (refs_size > 0)
5880 free(refs[--refs_size].name);
5881 while (id_refs_size > 0)
5882 free(id_refs[--id_refs_size]);
5884 return read_properties(popen(cmd, "r"), "\t", read_ref);
5888 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
5890 if (!strcmp(name, "i18n.commitencoding"))
5891 string_ncopy(opt_encoding, value, valuelen);
5893 if (!strcmp(name, "core.editor"))
5894 string_ncopy(opt_editor, value, valuelen);
5896 /* branch.<head>.remote */
5898 !strncmp(name, "branch.", 7) &&
5899 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5900 !strcmp(name + 7 + strlen(opt_head), ".remote"))
5901 string_ncopy(opt_remote, value, valuelen);
5903 if (*opt_head && *opt_remote &&
5904 !strncmp(name, "branch.", 7) &&
5905 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5906 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
5907 size_t from = strlen(opt_remote);
5909 if (!prefixcmp(value, "refs/heads/")) {
5910 value += STRING_SIZE("refs/heads/");
5911 valuelen -= STRING_SIZE("refs/heads/");
5914 if (!string_format_from(opt_remote, &from, "/%s", value))
5922 load_git_config(void)
5924 return read_properties(popen("git " GIT_CONFIG " --list", "r"),
5925 "=", read_repo_config_option);
5929 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
5931 if (!opt_git_dir[0]) {
5932 string_ncopy(opt_git_dir, name, namelen);
5934 } else if (opt_is_inside_work_tree == -1) {
5935 /* This can be 3 different values depending on the
5936 * version of git being used. If git-rev-parse does not
5937 * understand --is-inside-work-tree it will simply echo
5938 * the option else either "true" or "false" is printed.
5939 * Default to true for the unknown case. */
5940 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
5942 } else if (opt_cdup[0] == ' ') {
5943 string_ncopy(opt_cdup, name, namelen);
5945 if (!prefixcmp(name, "refs/heads/")) {
5946 namelen -= STRING_SIZE("refs/heads/");
5947 name += STRING_SIZE("refs/heads/");
5948 string_ncopy(opt_head, name, namelen);
5956 load_repo_info(void)
5959 FILE *pipe = popen("(git rev-parse --git-dir --is-inside-work-tree "
5960 " --show-cdup; git symbolic-ref HEAD) 2>/dev/null", "r");
5962 /* XXX: The line outputted by "--show-cdup" can be empty so
5963 * initialize it to something invalid to make it possible to
5964 * detect whether it has been set or not. */
5967 result = read_properties(pipe, "=", read_repo_info);
5968 if (opt_cdup[0] == ' ')
5975 read_properties(FILE *pipe, const char *separators,
5976 int (*read_property)(char *, size_t, char *, size_t))
5978 char buffer[BUFSIZ];
5985 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
5990 name = chomp_string(name);
5991 namelen = strcspn(name, separators);
5993 if (name[namelen]) {
5995 value = chomp_string(name + namelen + 1);
5996 valuelen = strlen(value);
6003 state = read_property(name, namelen, value, valuelen);
6006 if (state != ERR && ferror(pipe))
6019 static void __NORETURN
6022 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6028 static void __NORETURN
6029 die(const char *err, ...)
6035 va_start(args, err);
6036 fputs("tig: ", stderr);
6037 vfprintf(stderr, err, args);
6038 fputs("\n", stderr);
6045 warn(const char *msg, ...)
6049 va_start(args, msg);
6050 fputs("tig warning: ", stderr);
6051 vfprintf(stderr, msg, args);
6052 fputs("\n", stderr);
6057 main(int argc, const char *argv[])
6060 enum request request;
6063 signal(SIGINT, quit);
6065 if (setlocale(LC_ALL, "")) {
6066 char *codeset = nl_langinfo(CODESET);
6068 string_ncopy(opt_codeset, codeset, strlen(codeset));
6071 if (load_repo_info() == ERR)
6072 die("Failed to load repo info.");
6074 if (load_options() == ERR)
6075 die("Failed to load user config.");
6077 if (load_git_config() == ERR)
6078 die("Failed to load repo config.");
6080 request = parse_options(argc, argv);
6081 if (request == REQ_NONE)
6084 /* Require a git repository unless when running in pager mode. */
6085 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6086 die("Not a git repository");
6088 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6091 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6092 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6093 if (opt_iconv == ICONV_NONE)
6094 die("Failed to initialize character set conversion");
6097 if (load_refs() == ERR)
6098 die("Failed to load refs.");
6100 foreach_view (view, i)
6101 view->cmd_env = getenv(view->cmd_env);
6105 while (view_driver(display[current_view], request)) {
6109 foreach_view (view, i)
6111 view = display[current_view];
6113 /* Refresh, accept single keystroke of input */
6114 key = wgetch(status_win);
6116 /* wgetch() with nodelay() enabled returns ERR when there's no
6123 request = get_keybinding(view->keymap, key);
6125 /* Some low-level request handling. This keeps access to
6126 * status_win restricted. */
6130 char *cmd = read_prompt(":");
6132 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
6133 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
6134 request = REQ_VIEW_DIFF;
6136 request = REQ_VIEW_PAGER;
6139 /* Always reload^Wrerun commands from the prompt. */
6140 open_view(view, request, OPEN_RELOAD);
6147 case REQ_SEARCH_BACK:
6149 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6150 char *search = read_prompt(prompt);
6153 string_ncopy(opt_search, search, strlen(search));
6158 case REQ_SCREEN_RESIZE:
6162 getmaxyx(stdscr, height, width);
6164 /* Resize the status view and let the view driver take
6165 * care of resizing the displayed views. */
6166 wresize(status_win, 1, width);
6167 mvwin(status_win, height - 1, 0);
6168 wrefresh(status_win);