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;
3366 case REQ_VIEW_BLAME:
3367 if (line->type != LINE_TREE_FILE) {
3368 report("Blame only supported for files");
3372 string_copy(opt_ref, view->vid);
3373 string_format(opt_file, "%s%s", opt_path, tree_path(line));
3376 case REQ_TREE_PARENT:
3378 /* quit view if at top of tree */
3379 return REQ_VIEW_CLOSE;
3382 line = &view->line[1];
3392 /* Cleanup the stack if the tree view is at a different tree. */
3393 while (!*opt_path && tree_stack)
3394 pop_tree_stack_entry();
3396 switch (line->type) {
3398 /* Depending on whether it is a subdir or parent (updir?) link
3399 * mangle the path buffer. */
3400 if (line == &view->line[1] && *opt_path) {
3401 pop_tree_stack_entry();
3404 const char *basename = tree_path(line);
3406 push_tree_stack_entry(basename, view->lineno);
3409 /* Trees and subtrees share the same ID, so they are not not
3410 * unique like blobs. */
3411 flags = OPEN_RELOAD;
3412 request = REQ_VIEW_TREE;
3415 case LINE_TREE_FILE:
3416 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3417 request = REQ_VIEW_BLOB;
3424 open_view(view, request, flags);
3425 if (request == REQ_VIEW_TREE) {
3426 view->lineno = tree_lineno;
3433 tree_select(struct view *view, struct line *line)
3435 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3437 if (line->type == LINE_TREE_FILE) {
3438 string_copy_rev(ref_blob, text);
3440 } else if (line->type != LINE_TREE_DIR) {
3444 string_copy_rev(view->ref, text);
3447 static struct view_ops tree_ops = {
3458 blob_read(struct view *view, char *line)
3462 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3465 static struct view_ops blob_ops = {
3478 * Loading the blame view is a two phase job:
3480 * 1. File content is read either using opt_file from the
3481 * filesystem or using git-cat-file.
3482 * 2. Then blame information is incrementally added by
3483 * reading output from git-blame.
3486 struct blame_commit {
3487 char id[SIZEOF_REV]; /* SHA1 ID. */
3488 char title[128]; /* First line of the commit message. */
3489 char author[75]; /* Author of the commit. */
3490 struct tm time; /* Date from the author ident. */
3491 char filename[128]; /* Name of file. */
3495 struct blame_commit *commit;
3496 unsigned int header:1;
3500 #define BLAME_CAT_FILE_CMD "git cat-file blob %s:%s"
3501 #define BLAME_INCREMENTAL_CMD "git blame --incremental %s -- %s"
3504 blame_open(struct view *view)
3506 char path[SIZEOF_STR];
3507 char ref[SIZEOF_STR] = "";
3509 if (sq_quote(path, 0, opt_file) >= sizeof(path))
3512 if (*opt_ref && sq_quote(ref, 0, opt_ref) >= sizeof(ref))
3516 if (!string_format(view->cmd, BLAME_CAT_FILE_CMD, ref, path))
3519 view->pipe = fopen(opt_file, "r");
3521 !string_format(view->cmd, BLAME_CAT_FILE_CMD, "HEAD", path))
3526 view->pipe = popen(view->cmd, "r");
3530 if (!string_format(view->cmd, BLAME_INCREMENTAL_CMD, ref, path))
3534 string_format(view->ref, "%s ...", opt_file);
3535 string_copy_rev(view->vid, opt_file);
3536 set_nonblocking_input(TRUE);
3537 view->start_time = time(NULL);
3542 static struct blame_commit *
3543 get_blame_commit(struct view *view, const char *id)
3547 for (i = 0; i < view->lines; i++) {
3548 struct blame *blame = view->line[i].data;
3553 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3554 return blame->commit;
3558 struct blame_commit *commit = calloc(1, sizeof(*commit));
3561 string_ncopy(commit->id, id, SIZEOF_REV);
3567 parse_number(const char **posref, size_t *number, size_t min, size_t max)
3569 const char *pos = *posref;
3572 pos = strchr(pos + 1, ' ');
3573 if (!pos || !isdigit(pos[1]))
3575 *number = atoi(pos + 1);
3576 if (*number < min || *number > max)
3583 static struct blame_commit *
3584 parse_blame_commit(struct view *view, const char *text, int *blamed)
3586 struct blame_commit *commit;
3587 struct blame *blame;
3588 const char *pos = text + SIZEOF_REV - 1;
3592 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3595 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3596 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3599 commit = get_blame_commit(view, text);
3605 struct line *line = &view->line[lineno + group - 1];
3608 blame->commit = commit;
3609 blame->header = !group;
3617 blame_read_file(struct view *view, const char *line)
3622 if (view->lines > 0)
3623 pipe = popen(view->cmd, "r");
3624 else if (!view->parent)
3625 die("No blame exist for %s", view->vid);
3628 report("Failed to load blame data");
3637 size_t linelen = strlen(line);
3638 struct blame *blame = malloc(sizeof(*blame) + linelen);
3640 blame->commit = NULL;
3641 strncpy(blame->text, line, linelen);
3642 blame->text[linelen] = 0;
3643 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3648 match_blame_header(const char *name, char **line)
3650 size_t namelen = strlen(name);
3651 bool matched = !strncmp(name, *line, namelen);
3660 blame_read(struct view *view, char *line)
3662 static struct blame_commit *commit = NULL;
3663 static int blamed = 0;
3664 static time_t author_time;
3667 return blame_read_file(view, line);
3673 string_format(view->ref, "%s", view->vid);
3674 if (view_is_displayed(view)) {
3675 update_view_title(view);
3676 redraw_view_from(view, 0);
3682 commit = parse_blame_commit(view, line, &blamed);
3683 string_format(view->ref, "%s %2d%%", view->vid,
3684 blamed * 100 / view->lines);
3686 } else if (match_blame_header("author ", &line)) {
3687 string_ncopy(commit->author, line, strlen(line));
3689 } else if (match_blame_header("author-time ", &line)) {
3690 author_time = (time_t) atol(line);
3692 } else if (match_blame_header("author-tz ", &line)) {
3695 tz = ('0' - line[1]) * 60 * 60 * 10;
3696 tz += ('0' - line[2]) * 60 * 60;
3697 tz += ('0' - line[3]) * 60;
3698 tz += ('0' - line[4]) * 60;
3704 gmtime_r(&author_time, &commit->time);
3706 } else if (match_blame_header("summary ", &line)) {
3707 string_ncopy(commit->title, line, strlen(line));
3709 } else if (match_blame_header("filename ", &line)) {
3710 string_ncopy(commit->filename, line, strlen(line));
3718 blame_draw(struct view *view, struct line *line, unsigned int lineno)
3720 struct blame *blame = line->data;
3721 struct tm *time = NULL;
3722 const char *id = NULL, *author = NULL;
3724 if (blame->commit && *blame->commit->filename) {
3725 id = blame->commit->id;
3726 author = blame->commit->author;
3727 time = &blame->commit->time;
3730 if (opt_date && draw_date(view, time))
3734 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
3737 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
3740 if (draw_lineno(view, lineno))
3743 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
3748 blame_request(struct view *view, enum request request, struct line *line)
3750 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3751 struct blame *blame = line->data;
3755 if (!blame->commit) {
3756 report("No commit loaded yet");
3760 if (!strcmp(blame->commit->id, NULL_ID)) {
3761 char path[SIZEOF_STR];
3763 if (sq_quote(path, 0, view->vid) >= sizeof(path))
3765 string_format(opt_cmd, "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s 2>/dev/null", path);
3768 open_view(view, REQ_VIEW_DIFF, flags);
3779 blame_grep(struct view *view, struct line *line)
3781 struct blame *blame = line->data;
3782 struct blame_commit *commit = blame->commit;
3785 #define MATCH(text, on) \
3786 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3789 char buf[DATE_COLS + 1];
3791 if (MATCH(commit->title, 1) ||
3792 MATCH(commit->author, opt_author) ||
3793 MATCH(commit->id, opt_date))
3796 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
3801 return MATCH(blame->text, 1);
3807 blame_select(struct view *view, struct line *line)
3809 struct blame *blame = line->data;
3810 struct blame_commit *commit = blame->commit;
3815 if (!strcmp(commit->id, NULL_ID))
3816 string_ncopy(ref_commit, "HEAD", 4);
3818 string_copy_rev(ref_commit, commit->id);
3821 static struct view_ops blame_ops = {
3839 char rev[SIZEOF_REV];
3840 char name[SIZEOF_STR];
3844 char rev[SIZEOF_REV];
3845 char name[SIZEOF_STR];
3849 static char status_onbranch[SIZEOF_STR];
3850 static struct status stage_status;
3851 static enum line_type stage_line_type;
3852 static size_t stage_chunks;
3853 static int *stage_chunk;
3855 /* This should work even for the "On branch" line. */
3857 status_has_none(struct view *view, struct line *line)
3859 return line < view->line + view->lines && !line[1].data;
3862 /* Get fields from the diff line:
3863 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3866 status_get_diff(struct status *file, const char *buf, size_t bufsize)
3868 const char *old_mode = buf + 1;
3869 const char *new_mode = buf + 8;
3870 const char *old_rev = buf + 15;
3871 const char *new_rev = buf + 56;
3872 const char *status = buf + 97;
3875 old_mode[-1] != ':' ||
3876 new_mode[-1] != ' ' ||
3877 old_rev[-1] != ' ' ||
3878 new_rev[-1] != ' ' ||
3882 file->status = *status;
3884 string_copy_rev(file->old.rev, old_rev);
3885 string_copy_rev(file->new.rev, new_rev);
3887 file->old.mode = strtoul(old_mode, NULL, 8);
3888 file->new.mode = strtoul(new_mode, NULL, 8);
3890 file->old.name[0] = file->new.name[0] = 0;
3896 status_run(struct view *view, const char cmd[], char status, enum line_type type)
3898 struct status *file = NULL;
3899 struct status *unmerged = NULL;
3900 char buf[SIZEOF_STR * 4];
3904 pipe = popen(cmd, "r");
3908 add_line_data(view, NULL, type);
3910 while (!feof(pipe) && !ferror(pipe)) {
3914 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3917 bufsize += readsize;
3919 /* Process while we have NUL chars. */
3920 while ((sep = memchr(buf, 0, bufsize))) {
3921 size_t sepsize = sep - buf + 1;
3924 if (!realloc_lines(view, view->line_size + 1))
3927 file = calloc(1, sizeof(*file));
3931 add_line_data(view, file, type);
3934 /* Parse diff info part. */
3936 file->status = status;
3938 string_copy(file->old.rev, NULL_ID);
3940 } else if (!file->status) {
3941 if (!status_get_diff(file, buf, sepsize))
3945 memmove(buf, sep + 1, bufsize);
3947 sep = memchr(buf, 0, bufsize);
3950 sepsize = sep - buf + 1;
3952 /* Collapse all 'M'odified entries that
3953 * follow a associated 'U'nmerged entry.
3955 if (file->status == 'U') {
3958 } else if (unmerged) {
3959 int collapse = !strcmp(buf, unmerged->new.name);
3970 /* Grab the old name for rename/copy. */
3971 if (!*file->old.name &&
3972 (file->status == 'R' || file->status == 'C')) {
3973 sepsize = sep - buf + 1;
3974 string_ncopy(file->old.name, buf, sepsize);
3976 memmove(buf, sep + 1, bufsize);
3978 sep = memchr(buf, 0, bufsize);
3981 sepsize = sep - buf + 1;
3984 /* git-ls-files just delivers a NUL separated
3985 * list of file names similar to the second half
3986 * of the git-diff-* output. */
3987 string_ncopy(file->new.name, buf, sepsize);
3988 if (!*file->old.name)
3989 string_copy(file->old.name, file->new.name);
3991 memmove(buf, sep + 1, bufsize);
4002 if (!view->line[view->lines - 1].data)
4003 add_line_data(view, NULL, LINE_STAT_NONE);
4009 /* Don't show unmerged entries in the staged section. */
4010 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD"
4011 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
4012 #define STATUS_LIST_OTHER_CMD \
4013 "git ls-files -z --others --exclude-standard"
4014 #define STATUS_LIST_NO_HEAD_CMD \
4015 "git ls-files -z --cached --exclude-standard"
4017 #define STATUS_DIFF_INDEX_SHOW_CMD \
4018 "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null"
4020 #define STATUS_DIFF_FILES_SHOW_CMD \
4021 "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null"
4023 #define STATUS_DIFF_NO_HEAD_SHOW_CMD \
4024 "git diff --no-color --patch-with-stat /dev/null %s 2>/dev/null"
4026 /* First parse staged info using git-diff-index(1), then parse unstaged
4027 * info using git-diff-files(1), and finally untracked files using
4028 * git-ls-files(1). */
4030 status_open(struct view *view)
4032 unsigned long prev_lineno = view->lineno;
4036 if (!realloc_lines(view, view->line_size + 7))
4039 add_line_data(view, NULL, LINE_STAT_HEAD);
4041 string_copy(status_onbranch, "Initial commit");
4042 else if (!*opt_head)
4043 string_copy(status_onbranch, "Not currently on any branch");
4044 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4047 system("git update-index -q --refresh >/dev/null 2>/dev/null");
4050 if (!status_run(view, STATUS_LIST_NO_HEAD_CMD, 'A', LINE_STAT_STAGED))
4052 } else if (!status_run(view, STATUS_DIFF_INDEX_CMD, 0, LINE_STAT_STAGED)) {
4056 if (!status_run(view, STATUS_DIFF_FILES_CMD, 0, LINE_STAT_UNSTAGED) ||
4057 !status_run(view, STATUS_LIST_OTHER_CMD, '?', LINE_STAT_UNTRACKED))
4060 /* If all went well restore the previous line number to stay in
4061 * the context or select a line with something that can be
4063 if (prev_lineno >= view->lines)
4064 prev_lineno = view->lines - 1;
4065 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4067 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4070 /* If the above fails, always skip the "On branch" line. */
4071 if (prev_lineno < view->lines)
4072 view->lineno = prev_lineno;
4076 if (view->lineno < view->offset)
4077 view->offset = view->lineno;
4078 else if (view->offset + view->height <= view->lineno)
4079 view->offset = view->lineno - view->height + 1;
4085 status_draw(struct view *view, struct line *line, unsigned int lineno)
4087 struct status *status = line->data;
4088 enum line_type type;
4092 switch (line->type) {
4093 case LINE_STAT_STAGED:
4094 type = LINE_STAT_SECTION;
4095 text = "Changes to be committed:";
4098 case LINE_STAT_UNSTAGED:
4099 type = LINE_STAT_SECTION;
4100 text = "Changed but not updated:";
4103 case LINE_STAT_UNTRACKED:
4104 type = LINE_STAT_SECTION;
4105 text = "Untracked files:";
4108 case LINE_STAT_NONE:
4109 type = LINE_DEFAULT;
4110 text = " (no files)";
4113 case LINE_STAT_HEAD:
4114 type = LINE_STAT_HEAD;
4115 text = status_onbranch;
4122 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4124 buf[0] = status->status;
4125 if (draw_text(view, line->type, buf, TRUE))
4127 type = LINE_DEFAULT;
4128 text = status->new.name;
4131 draw_text(view, type, text, TRUE);
4136 status_enter(struct view *view, struct line *line)
4138 struct status *status = line->data;
4139 char oldpath[SIZEOF_STR] = "";
4140 char newpath[SIZEOF_STR] = "";
4143 enum open_flags split;
4145 if (line->type == LINE_STAT_NONE ||
4146 (!status && line[1].type == LINE_STAT_NONE)) {
4147 report("No file to diff");
4152 if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath))
4154 /* Diffs for unmerged entries are empty when pasing the
4155 * new path, so leave it empty. */
4156 if (status->status != 'U' &&
4157 sq_quote(newpath, 0, status->new.name) >= sizeof(newpath))
4162 line->type != LINE_STAT_UNTRACKED &&
4163 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
4166 switch (line->type) {
4167 case LINE_STAT_STAGED:
4169 if (!string_format_from(opt_cmd, &cmdsize,
4170 STATUS_DIFF_NO_HEAD_SHOW_CMD,
4174 if (!string_format_from(opt_cmd, &cmdsize,
4175 STATUS_DIFF_INDEX_SHOW_CMD,
4181 info = "Staged changes to %s";
4183 info = "Staged changes";
4186 case LINE_STAT_UNSTAGED:
4187 if (!string_format_from(opt_cmd, &cmdsize,
4188 STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath))
4191 info = "Unstaged changes to %s";
4193 info = "Unstaged changes";
4196 case LINE_STAT_UNTRACKED:
4201 report("No file to show");
4205 if (!suffixcmp(status->new.name, -1, "/")) {
4206 report("Cannot display a directory");
4210 opt_pipe = fopen(status->new.name, "r");
4211 info = "Untracked file %s";
4214 case LINE_STAT_HEAD:
4218 die("line type %d not handled in switch", line->type);
4221 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4222 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | split);
4223 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4225 stage_status = *status;
4227 memset(&stage_status, 0, sizeof(stage_status));
4230 stage_line_type = line->type;
4232 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4239 status_exists(struct status *status, enum line_type type)
4241 struct view *view = VIEW(REQ_VIEW_STATUS);
4244 for (line = view->line; line < view->line + view->lines; line++) {
4245 struct status *pos = line->data;
4247 if (line->type == type && pos &&
4248 !strcmp(status->new.name, pos->new.name))
4257 status_update_prepare(enum line_type type)
4259 char cmd[SIZEOF_STR];
4263 type != LINE_STAT_UNTRACKED &&
4264 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4268 case LINE_STAT_STAGED:
4269 string_add(cmd, cmdsize, "git update-index -z --index-info");
4272 case LINE_STAT_UNSTAGED:
4273 case LINE_STAT_UNTRACKED:
4274 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
4278 die("line type %d not handled in switch", type);
4281 return popen(cmd, "w");
4285 status_update_write(FILE *pipe, struct status *status, enum line_type type)
4287 char buf[SIZEOF_STR];
4292 case LINE_STAT_STAGED:
4293 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4296 status->old.name, 0))
4300 case LINE_STAT_UNSTAGED:
4301 case LINE_STAT_UNTRACKED:
4302 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4307 die("line type %d not handled in switch", type);
4310 while (!ferror(pipe) && written < bufsize) {
4311 written += fwrite(buf + written, 1, bufsize - written, pipe);
4314 return written == bufsize;
4318 status_update_file(struct status *status, enum line_type type)
4320 FILE *pipe = status_update_prepare(type);
4326 result = status_update_write(pipe, status, type);
4332 status_update_files(struct view *view, struct line *line)
4334 FILE *pipe = status_update_prepare(line->type);
4336 struct line *pos = view->line + view->lines;
4343 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4346 for (file = 0, done = 0; result && file < files; line++, file++) {
4347 int almost_done = file * 100 / files;
4349 if (almost_done > done) {
4351 string_format(view->ref, "updating file %u of %u (%d%% done)",
4353 update_view_title(view);
4355 result = status_update_write(pipe, line->data, line->type);
4363 status_update(struct view *view)
4365 struct line *line = &view->line[view->lineno];
4367 assert(view->lines);
4370 /* This should work even for the "On branch" line. */
4371 if (line < view->line + view->lines && !line[1].data) {
4372 report("Nothing to update");
4376 if (!status_update_files(view, line + 1)) {
4377 report("Failed to update file status");
4381 } else if (!status_update_file(line->data, line->type)) {
4382 report("Failed to update file status");
4390 status_revert(struct status *status, enum line_type type, bool has_none)
4392 if (!status || type != LINE_STAT_UNSTAGED) {
4393 if (type == LINE_STAT_STAGED) {
4394 report("Cannot revert changes to staged files");
4395 } else if (type == LINE_STAT_UNTRACKED) {
4396 report("Cannot revert changes to untracked files");
4397 } else if (has_none) {
4398 report("Nothing to revert");
4400 report("Cannot revert changes to multiple files");
4405 char cmd[SIZEOF_STR];
4406 char file_sq[SIZEOF_STR];
4408 if (sq_quote(file_sq, 0, status->old.name) >= sizeof(file_sq) ||
4409 !string_format(cmd, "git checkout -- %s%s", opt_cdup, file_sq))
4412 return run_confirm(cmd, "Are you sure you want to overwrite any changes?");
4417 status_request(struct view *view, enum request request, struct line *line)
4419 struct status *status = line->data;
4422 case REQ_STATUS_UPDATE:
4423 if (!status_update(view))
4427 case REQ_STATUS_REVERT:
4428 if (!status_revert(status, line->type, status_has_none(view, line)))
4432 case REQ_STATUS_MERGE:
4433 if (!status || status->status != 'U') {
4434 report("Merging only possible for files with unmerged status ('U').");
4437 open_mergetool(status->new.name);
4443 if (status->status == 'D') {
4444 report("File has been deleted.");
4448 open_editor(status->status != '?', status->new.name);
4451 case REQ_VIEW_BLAME:
4453 string_copy(opt_file, status->new.name);
4459 /* After returning the status view has been split to
4460 * show the stage view. No further reloading is
4462 status_enter(view, line);
4466 /* Simply reload the view. */
4473 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4479 status_select(struct view *view, struct line *line)
4481 struct status *status = line->data;
4482 char file[SIZEOF_STR] = "all files";
4486 if (status && !string_format(file, "'%s'", status->new.name))
4489 if (!status && line[1].type == LINE_STAT_NONE)
4492 switch (line->type) {
4493 case LINE_STAT_STAGED:
4494 text = "Press %s to unstage %s for commit";
4497 case LINE_STAT_UNSTAGED:
4498 text = "Press %s to stage %s for commit";
4501 case LINE_STAT_UNTRACKED:
4502 text = "Press %s to stage %s for addition";
4505 case LINE_STAT_HEAD:
4506 case LINE_STAT_NONE:
4507 text = "Nothing to update";
4511 die("line type %d not handled in switch", line->type);
4514 if (status && status->status == 'U') {
4515 text = "Press %s to resolve conflict in %s";
4516 key = get_key(REQ_STATUS_MERGE);
4519 key = get_key(REQ_STATUS_UPDATE);
4522 string_format(view->ref, text, key, file);
4526 status_grep(struct view *view, struct line *line)
4528 struct status *status = line->data;
4529 enum { S_STATUS, S_NAME, S_END } state;
4536 for (state = S_STATUS; state < S_END; state++) {
4540 case S_NAME: text = status->new.name; break;
4542 buf[0] = status->status;
4550 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4557 static struct view_ops status_ops = {
4569 stage_diff_line(FILE *pipe, struct line *line)
4571 const char *buf = line->data;
4572 size_t bufsize = strlen(buf);
4575 while (!ferror(pipe) && written < bufsize) {
4576 written += fwrite(buf + written, 1, bufsize - written, pipe);
4581 return written == bufsize;
4585 stage_diff_write(FILE *pipe, struct line *line, struct line *end)
4587 while (line < end) {
4588 if (!stage_diff_line(pipe, line++))
4590 if (line->type == LINE_DIFF_CHUNK ||
4591 line->type == LINE_DIFF_HEADER)
4598 static struct line *
4599 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4601 for (; view->line < line; line--)
4602 if (line->type == type)
4609 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
4611 char cmd[SIZEOF_STR];
4613 struct line *diff_hdr;
4616 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4621 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4624 if (!string_format_from(cmd, &cmdsize,
4625 "git apply --whitespace=nowarn %s %s - && "
4626 "git update-index -q --unmerged --refresh 2>/dev/null",
4627 revert ? "" : "--cached",
4628 revert || stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
4631 pipe = popen(cmd, "w");
4635 if (!stage_diff_write(pipe, diff_hdr, chunk) ||
4636 !stage_diff_write(pipe, chunk, view->line + view->lines))
4641 return chunk ? TRUE : FALSE;
4645 stage_update(struct view *view, struct line *line)
4647 struct line *chunk = NULL;
4649 if (!opt_no_head && stage_line_type != LINE_STAT_UNTRACKED)
4650 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4653 if (!stage_apply_chunk(view, chunk, FALSE)) {
4654 report("Failed to apply chunk");
4658 } else if (!stage_status.status) {
4659 view = VIEW(REQ_VIEW_STATUS);
4661 for (line = view->line; line < view->line + view->lines; line++)
4662 if (line->type == stage_line_type)
4665 if (!status_update_files(view, line + 1)) {
4666 report("Failed to update files");
4670 } else if (!status_update_file(&stage_status, stage_line_type)) {
4671 report("Failed to update file");
4679 stage_revert(struct view *view, struct line *line)
4681 struct line *chunk = NULL;
4683 if (!opt_no_head && stage_line_type == LINE_STAT_UNSTAGED)
4684 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4687 if (!prompt_yesno("Are you sure you want to revert changes?"))
4690 if (!stage_apply_chunk(view, chunk, TRUE)) {
4691 report("Failed to revert chunk");
4697 return status_revert(stage_status.status ? &stage_status : NULL,
4698 stage_line_type, FALSE);
4704 stage_next(struct view *view, struct line *line)
4708 if (!stage_chunks) {
4709 static size_t alloc = 0;
4712 for (line = view->line; line < view->line + view->lines; line++) {
4713 if (line->type != LINE_DIFF_CHUNK)
4716 tmp = realloc_items(stage_chunk, &alloc,
4717 stage_chunks, sizeof(*tmp));
4719 report("Allocation failure");
4724 stage_chunk[stage_chunks++] = line - view->line;
4728 for (i = 0; i < stage_chunks; i++) {
4729 if (stage_chunk[i] > view->lineno) {
4730 do_scroll_view(view, stage_chunk[i] - view->lineno);
4731 report("Chunk %d of %d", i + 1, stage_chunks);
4736 report("No next chunk found");
4740 stage_request(struct view *view, enum request request, struct line *line)
4743 case REQ_STATUS_UPDATE:
4744 if (!stage_update(view, line))
4748 case REQ_STATUS_REVERT:
4749 if (!stage_revert(view, line))
4753 case REQ_STAGE_NEXT:
4754 if (stage_line_type == LINE_STAT_UNTRACKED) {
4755 report("File is untracked; press %s to add",
4756 get_key(REQ_STATUS_UPDATE));
4759 stage_next(view, line);
4763 if (!stage_status.new.name[0])
4765 if (stage_status.status == 'D') {
4766 report("File has been deleted.");
4770 open_editor(stage_status.status != '?', stage_status.new.name);
4774 /* Reload everything ... */
4777 case REQ_VIEW_BLAME:
4778 if (stage_status.new.name[0]) {
4779 string_copy(opt_file, stage_status.new.name);
4785 return pager_request(view, request, line);
4791 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4793 /* Check whether the staged entry still exists, and close the
4794 * stage view if it doesn't. */
4795 if (!status_exists(&stage_status, stage_line_type))
4796 return REQ_VIEW_CLOSE;
4798 if (stage_line_type == LINE_STAT_UNTRACKED) {
4799 if (!suffixcmp(stage_status.new.name, -1, "/")) {
4800 report("Cannot display a directory");
4804 opt_pipe = fopen(stage_status.new.name, "r");
4806 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
4811 static struct view_ops stage_ops = {
4827 char id[SIZEOF_REV]; /* SHA1 ID. */
4828 char title[128]; /* First line of the commit message. */
4829 char author[75]; /* Author of the commit. */
4830 struct tm time; /* Date from the author ident. */
4831 struct ref **refs; /* Repository references. */
4832 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
4833 size_t graph_size; /* The width of the graph array. */
4834 bool has_parents; /* Rewritten --parents seen. */
4837 /* Size of rev graph with no "padding" columns */
4838 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
4841 struct rev_graph *prev, *next, *parents;
4842 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
4844 struct commit *commit;
4846 unsigned int boundary:1;
4849 /* Parents of the commit being visualized. */
4850 static struct rev_graph graph_parents[4];
4852 /* The current stack of revisions on the graph. */
4853 static struct rev_graph graph_stacks[4] = {
4854 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
4855 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
4856 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
4857 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
4861 graph_parent_is_merge(struct rev_graph *graph)
4863 return graph->parents->size > 1;
4867 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
4869 struct commit *commit = graph->commit;
4871 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
4872 commit->graph[commit->graph_size++] = symbol;
4876 clear_rev_graph(struct rev_graph *graph)
4878 graph->boundary = 0;
4879 graph->size = graph->pos = 0;
4880 graph->commit = NULL;
4881 memset(graph->parents, 0, sizeof(*graph->parents));
4885 done_rev_graph(struct rev_graph *graph)
4887 if (graph_parent_is_merge(graph) &&
4888 graph->pos < graph->size - 1 &&
4889 graph->next->size == graph->size + graph->parents->size - 1) {
4890 size_t i = graph->pos + graph->parents->size - 1;
4892 graph->commit->graph_size = i * 2;
4893 while (i < graph->next->size - 1) {
4894 append_to_rev_graph(graph, ' ');
4895 append_to_rev_graph(graph, '\\');
4900 clear_rev_graph(graph);
4904 push_rev_graph(struct rev_graph *graph, const char *parent)
4908 /* "Collapse" duplicate parents lines.
4910 * FIXME: This needs to also update update the drawn graph but
4911 * for now it just serves as a method for pruning graph lines. */
4912 for (i = 0; i < graph->size; i++)
4913 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
4916 if (graph->size < SIZEOF_REVITEMS) {
4917 string_copy_rev(graph->rev[graph->size++], parent);
4922 get_rev_graph_symbol(struct rev_graph *graph)
4926 if (graph->boundary)
4927 symbol = REVGRAPH_BOUND;
4928 else if (graph->parents->size == 0)
4929 symbol = REVGRAPH_INIT;
4930 else if (graph_parent_is_merge(graph))
4931 symbol = REVGRAPH_MERGE;
4932 else if (graph->pos >= graph->size)
4933 symbol = REVGRAPH_BRANCH;
4935 symbol = REVGRAPH_COMMIT;
4941 draw_rev_graph(struct rev_graph *graph)
4944 chtype separator, line;
4946 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
4947 static struct rev_filler fillers[] = {
4953 chtype symbol = get_rev_graph_symbol(graph);
4954 struct rev_filler *filler;
4957 if (opt_line_graphics)
4958 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
4960 filler = &fillers[DEFAULT];
4962 for (i = 0; i < graph->pos; i++) {
4963 append_to_rev_graph(graph, filler->line);
4964 if (graph_parent_is_merge(graph->prev) &&
4965 graph->prev->pos == i)
4966 filler = &fillers[RSHARP];
4968 append_to_rev_graph(graph, filler->separator);
4971 /* Place the symbol for this revision. */
4972 append_to_rev_graph(graph, symbol);
4974 if (graph->prev->size > graph->size)
4975 filler = &fillers[RDIAG];
4977 filler = &fillers[DEFAULT];
4981 for (; i < graph->size; i++) {
4982 append_to_rev_graph(graph, filler->separator);
4983 append_to_rev_graph(graph, filler->line);
4984 if (graph_parent_is_merge(graph->prev) &&
4985 i < graph->prev->pos + graph->parents->size)
4986 filler = &fillers[RSHARP];
4987 if (graph->prev->size > graph->size)
4988 filler = &fillers[LDIAG];
4991 if (graph->prev->size > graph->size) {
4992 append_to_rev_graph(graph, filler->separator);
4993 if (filler->line != ' ')
4994 append_to_rev_graph(graph, filler->line);
4998 /* Prepare the next rev graph */
5000 prepare_rev_graph(struct rev_graph *graph)
5004 /* First, traverse all lines of revisions up to the active one. */
5005 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5006 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5009 push_rev_graph(graph->next, graph->rev[graph->pos]);
5012 /* Interleave the new revision parent(s). */
5013 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5014 push_rev_graph(graph->next, graph->parents->rev[i]);
5016 /* Lastly, put any remaining revisions. */
5017 for (i = graph->pos + 1; i < graph->size; i++)
5018 push_rev_graph(graph->next, graph->rev[i]);
5022 update_rev_graph(struct rev_graph *graph)
5024 /* If this is the finalizing update ... */
5026 prepare_rev_graph(graph);
5028 /* Graph visualization needs a one rev look-ahead,
5029 * so the first update doesn't visualize anything. */
5030 if (!graph->prev->commit)
5033 draw_rev_graph(graph->prev);
5034 done_rev_graph(graph->prev->prev);
5043 main_draw(struct view *view, struct line *line, unsigned int lineno)
5045 struct commit *commit = line->data;
5047 if (!*commit->author)
5050 if (opt_date && draw_date(view, &commit->time))
5054 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5057 if (opt_rev_graph && commit->graph_size &&
5058 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5061 if (opt_show_refs && commit->refs) {
5065 enum line_type type;
5067 if (commit->refs[i]->head)
5068 type = LINE_MAIN_HEAD;
5069 else if (commit->refs[i]->ltag)
5070 type = LINE_MAIN_LOCAL_TAG;
5071 else if (commit->refs[i]->tag)
5072 type = LINE_MAIN_TAG;
5073 else if (commit->refs[i]->tracked)
5074 type = LINE_MAIN_TRACKED;
5075 else if (commit->refs[i]->remote)
5076 type = LINE_MAIN_REMOTE;
5078 type = LINE_MAIN_REF;
5080 if (draw_text(view, type, "[", TRUE) ||
5081 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5082 draw_text(view, type, "]", TRUE))
5085 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5087 } while (commit->refs[i++]->next);
5090 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5094 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5096 main_read(struct view *view, char *line)
5098 static struct rev_graph *graph = graph_stacks;
5099 enum line_type type;
5100 struct commit *commit;
5105 if (!view->lines && !view->parent)
5106 die("No revisions match the given arguments.");
5107 if (view->lines > 0) {
5108 commit = view->line[view->lines - 1].data;
5109 if (!*commit->author) {
5112 graph->commit = NULL;
5115 update_rev_graph(graph);
5117 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5118 clear_rev_graph(&graph_stacks[i]);
5122 type = get_line_type(line);
5123 if (type == LINE_COMMIT) {
5124 commit = calloc(1, sizeof(struct commit));
5128 line += STRING_SIZE("commit ");
5130 graph->boundary = 1;
5134 string_copy_rev(commit->id, line);
5135 commit->refs = get_refs(commit->id);
5136 graph->commit = commit;
5137 add_line_data(view, commit, LINE_MAIN_COMMIT);
5139 while ((line = strchr(line, ' '))) {
5141 push_rev_graph(graph->parents, line);
5142 commit->has_parents = TRUE;
5149 commit = view->line[view->lines - 1].data;
5153 if (commit->has_parents)
5155 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5160 /* Parse author lines where the name may be empty:
5161 * author <email@address.tld> 1138474660 +0100
5163 char *ident = line + STRING_SIZE("author ");
5164 char *nameend = strchr(ident, '<');
5165 char *emailend = strchr(ident, '>');
5167 if (!nameend || !emailend)
5170 update_rev_graph(graph);
5171 graph = graph->next;
5173 *nameend = *emailend = 0;
5174 ident = chomp_string(ident);
5176 ident = chomp_string(nameend + 1);
5181 string_ncopy(commit->author, ident, strlen(ident));
5183 /* Parse epoch and timezone */
5184 if (emailend[1] == ' ') {
5185 char *secs = emailend + 2;
5186 char *zone = strchr(secs, ' ');
5187 time_t time = (time_t) atol(secs);
5189 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5193 tz = ('0' - zone[1]) * 60 * 60 * 10;
5194 tz += ('0' - zone[2]) * 60 * 60;
5195 tz += ('0' - zone[3]) * 60;
5196 tz += ('0' - zone[4]) * 60;
5204 gmtime_r(&time, &commit->time);
5209 /* Fill in the commit title if it has not already been set. */
5210 if (commit->title[0])
5213 /* Require titles to start with a non-space character at the
5214 * offset used by git log. */
5215 if (strncmp(line, " ", 4))
5218 /* Well, if the title starts with a whitespace character,
5219 * try to be forgiving. Otherwise we end up with no title. */
5220 while (isspace(*line))
5224 /* FIXME: More graceful handling of titles; append "..." to
5225 * shortened titles, etc. */
5227 string_ncopy(commit->title, line, strlen(line));
5234 main_request(struct view *view, enum request request, struct line *line)
5236 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5240 open_view(view, REQ_VIEW_DIFF, flags);
5244 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5254 grep_refs(struct ref **refs, regex_t *regex)
5262 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5264 } while (refs[i++]->next);
5270 main_grep(struct view *view, struct line *line)
5272 struct commit *commit = line->data;
5273 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5274 char buf[DATE_COLS + 1];
5277 for (state = S_TITLE; state < S_END; state++) {
5281 case S_TITLE: text = commit->title; break;
5285 text = commit->author;
5290 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5297 if (grep_refs(commit->refs, view->regex) == TRUE)
5304 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5312 main_select(struct view *view, struct line *line)
5314 struct commit *commit = line->data;
5316 string_copy_rev(view->ref, commit->id);
5317 string_copy_rev(ref_commit, view->ref);
5320 static struct view_ops main_ops = {
5332 * Unicode / UTF-8 handling
5334 * NOTE: Much of the following code for dealing with unicode is derived from
5335 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5336 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5339 /* I've (over)annotated a lot of code snippets because I am not entirely
5340 * confident that the approach taken by this small UTF-8 interface is correct.
5344 unicode_width(unsigned long c)
5347 (c <= 0x115f /* Hangul Jamo */
5350 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5352 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5353 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5354 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5355 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5356 || (c >= 0xffe0 && c <= 0xffe6)
5357 || (c >= 0x20000 && c <= 0x2fffd)
5358 || (c >= 0x30000 && c <= 0x3fffd)))
5362 return opt_tab_size;
5367 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5368 * Illegal bytes are set one. */
5369 static const unsigned char utf8_bytes[256] = {
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 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,
5375 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,
5376 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,
5377 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,
5380 /* Decode UTF-8 multi-byte representation into a unicode character. */
5381 static inline unsigned long
5382 utf8_to_unicode(const char *string, size_t length)
5384 unsigned long unicode;
5388 unicode = string[0];
5391 unicode = (string[0] & 0x1f) << 6;
5392 unicode += (string[1] & 0x3f);
5395 unicode = (string[0] & 0x0f) << 12;
5396 unicode += ((string[1] & 0x3f) << 6);
5397 unicode += (string[2] & 0x3f);
5400 unicode = (string[0] & 0x0f) << 18;
5401 unicode += ((string[1] & 0x3f) << 12);
5402 unicode += ((string[2] & 0x3f) << 6);
5403 unicode += (string[3] & 0x3f);
5406 unicode = (string[0] & 0x0f) << 24;
5407 unicode += ((string[1] & 0x3f) << 18);
5408 unicode += ((string[2] & 0x3f) << 12);
5409 unicode += ((string[3] & 0x3f) << 6);
5410 unicode += (string[4] & 0x3f);
5413 unicode = (string[0] & 0x01) << 30;
5414 unicode += ((string[1] & 0x3f) << 24);
5415 unicode += ((string[2] & 0x3f) << 18);
5416 unicode += ((string[3] & 0x3f) << 12);
5417 unicode += ((string[4] & 0x3f) << 6);
5418 unicode += (string[5] & 0x3f);
5421 die("Invalid unicode length");
5424 /* Invalid characters could return the special 0xfffd value but NUL
5425 * should be just as good. */
5426 return unicode > 0xffff ? 0 : unicode;
5429 /* Calculates how much of string can be shown within the given maximum width
5430 * and sets trimmed parameter to non-zero value if all of string could not be
5431 * shown. If the reserve flag is TRUE, it will reserve at least one
5432 * trailing character, which can be useful when drawing a delimiter.
5434 * Returns the number of bytes to output from string to satisfy max_width. */
5436 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5438 const char *start = string;
5439 const char *end = strchr(string, '\0');
5440 unsigned char last_bytes = 0;
5441 size_t last_ucwidth = 0;
5446 while (string < end) {
5447 int c = *(unsigned char *) string;
5448 unsigned char bytes = utf8_bytes[c];
5450 unsigned long unicode;
5452 if (string + bytes > end)
5455 /* Change representation to figure out whether
5456 * it is a single- or double-width character. */
5458 unicode = utf8_to_unicode(string, bytes);
5459 /* FIXME: Graceful handling of invalid unicode character. */
5463 ucwidth = unicode_width(unicode);
5465 if (*width > max_width) {
5468 if (reserve && *width == max_width) {
5469 string -= last_bytes;
5470 *width -= last_ucwidth;
5477 last_ucwidth = ucwidth;
5480 return string - start;
5488 /* Whether or not the curses interface has been initialized. */
5489 static bool cursed = FALSE;
5491 /* The status window is used for polling keystrokes. */
5492 static WINDOW *status_win;
5494 static bool status_empty = TRUE;
5496 /* Update status and title window. */
5498 report(const char *msg, ...)
5500 struct view *view = display[current_view];
5506 char buf[SIZEOF_STR];
5509 va_start(args, msg);
5510 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5511 buf[sizeof(buf) - 1] = 0;
5512 buf[sizeof(buf) - 2] = '.';
5513 buf[sizeof(buf) - 3] = '.';
5514 buf[sizeof(buf) - 4] = '.';
5520 if (!status_empty || *msg) {
5523 va_start(args, msg);
5525 wmove(status_win, 0, 0);
5527 vwprintw(status_win, msg, args);
5528 status_empty = FALSE;
5530 status_empty = TRUE;
5532 wclrtoeol(status_win);
5533 wrefresh(status_win);
5538 update_view_title(view);
5539 update_display_cursor(view);
5542 /* Controls when nodelay should be in effect when polling user input. */
5544 set_nonblocking_input(bool loading)
5546 static unsigned int loading_views;
5548 if ((loading == FALSE && loading_views-- == 1) ||
5549 (loading == TRUE && loading_views++ == 0))
5550 nodelay(status_win, loading);
5558 /* Initialize the curses library */
5559 if (isatty(STDIN_FILENO)) {
5560 cursed = !!initscr();
5563 /* Leave stdin and stdout alone when acting as a pager. */
5564 opt_tty = fopen("/dev/tty", "r+");
5566 die("Failed to open /dev/tty");
5567 cursed = !!newterm(NULL, opt_tty, opt_tty);
5571 die("Failed to initialize curses");
5573 nonl(); /* Tell curses not to do NL->CR/NL on output */
5574 cbreak(); /* Take input chars one at a time, no wait for \n */
5575 noecho(); /* Don't echo input */
5576 leaveok(stdscr, TRUE);
5581 getmaxyx(stdscr, y, x);
5582 status_win = newwin(1, 0, y - 1, 0);
5584 die("Failed to create status window");
5586 /* Enable keyboard mapping */
5587 keypad(status_win, TRUE);
5588 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5590 TABSIZE = opt_tab_size;
5591 if (opt_line_graphics) {
5592 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5597 prompt_yesno(const char *prompt)
5599 enum { WAIT, STOP, CANCEL } status = WAIT;
5600 bool answer = FALSE;
5602 while (status == WAIT) {
5608 foreach_view (view, i)
5613 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
5614 wclrtoeol(status_win);
5616 /* Refresh, accept single keystroke of input */
5617 key = wgetch(status_win);
5641 /* Clear the status window */
5642 status_empty = FALSE;
5649 read_prompt(const char *prompt)
5651 enum { READING, STOP, CANCEL } status = READING;
5652 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
5655 while (status == READING) {
5661 foreach_view (view, i)
5666 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5667 wclrtoeol(status_win);
5669 /* Refresh, accept single keystroke of input */
5670 key = wgetch(status_win);
5675 status = pos ? STOP : CANCEL;
5693 if (pos >= sizeof(buf)) {
5694 report("Input string too long");
5699 buf[pos++] = (char) key;
5703 /* Clear the status window */
5704 status_empty = FALSE;
5707 if (status == CANCEL)
5716 * Repository references
5719 static struct ref *refs = NULL;
5720 static size_t refs_alloc = 0;
5721 static size_t refs_size = 0;
5723 /* Id <-> ref store */
5724 static struct ref ***id_refs = NULL;
5725 static size_t id_refs_alloc = 0;
5726 static size_t id_refs_size = 0;
5729 compare_refs(const void *ref1_, const void *ref2_)
5731 const struct ref *ref1 = *(const struct ref **)ref1_;
5732 const struct ref *ref2 = *(const struct ref **)ref2_;
5734 if (ref1->tag != ref2->tag)
5735 return ref2->tag - ref1->tag;
5736 if (ref1->ltag != ref2->ltag)
5737 return ref2->ltag - ref2->ltag;
5738 if (ref1->head != ref2->head)
5739 return ref2->head - ref1->head;
5740 if (ref1->tracked != ref2->tracked)
5741 return ref2->tracked - ref1->tracked;
5742 if (ref1->remote != ref2->remote)
5743 return ref2->remote - ref1->remote;
5744 return strcmp(ref1->name, ref2->name);
5747 static struct ref **
5748 get_refs(const char *id)
5750 struct ref ***tmp_id_refs;
5751 struct ref **ref_list = NULL;
5752 size_t ref_list_alloc = 0;
5753 size_t ref_list_size = 0;
5756 for (i = 0; i < id_refs_size; i++)
5757 if (!strcmp(id, id_refs[i][0]->id))
5760 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
5765 id_refs = tmp_id_refs;
5767 for (i = 0; i < refs_size; i++) {
5770 if (strcmp(id, refs[i].id))
5773 tmp = realloc_items(ref_list, &ref_list_alloc,
5774 ref_list_size + 1, sizeof(*ref_list));
5782 ref_list[ref_list_size] = &refs[i];
5783 /* XXX: The properties of the commit chains ensures that we can
5784 * safely modify the shared ref. The repo references will
5785 * always be similar for the same id. */
5786 ref_list[ref_list_size]->next = 1;
5792 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
5793 ref_list[ref_list_size - 1]->next = 0;
5794 id_refs[id_refs_size++] = ref_list;
5801 read_ref(char *id, size_t idlen, char *name, size_t namelen)
5806 bool remote = FALSE;
5807 bool tracked = FALSE;
5808 bool check_replace = FALSE;
5811 if (!prefixcmp(name, "refs/tags/")) {
5812 if (!suffixcmp(name, namelen, "^{}")) {
5815 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
5816 check_replace = TRUE;
5822 namelen -= STRING_SIZE("refs/tags/");
5823 name += STRING_SIZE("refs/tags/");
5825 } else if (!prefixcmp(name, "refs/remotes/")) {
5827 namelen -= STRING_SIZE("refs/remotes/");
5828 name += STRING_SIZE("refs/remotes/");
5829 tracked = !strcmp(opt_remote, name);
5831 } else if (!prefixcmp(name, "refs/heads/")) {
5832 namelen -= STRING_SIZE("refs/heads/");
5833 name += STRING_SIZE("refs/heads/");
5834 head = !strncmp(opt_head, name, namelen);
5836 } else if (!strcmp(name, "HEAD")) {
5837 opt_no_head = FALSE;
5841 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
5842 /* it's an annotated tag, replace the previous sha1 with the
5843 * resolved commit id; relies on the fact git-ls-remote lists
5844 * the commit id of an annotated tag right before the commit id
5846 refs[refs_size - 1].ltag = ltag;
5847 string_copy_rev(refs[refs_size - 1].id, id);
5851 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
5855 ref = &refs[refs_size++];
5856 ref->name = malloc(namelen + 1);
5860 strncpy(ref->name, name, namelen);
5861 ref->name[namelen] = 0;
5865 ref->remote = remote;
5866 ref->tracked = tracked;
5867 string_copy_rev(ref->id, id);
5875 const char *cmd_env = getenv("TIG_LS_REMOTE");
5876 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
5881 while (refs_size > 0)
5882 free(refs[--refs_size].name);
5883 while (id_refs_size > 0)
5884 free(id_refs[--id_refs_size]);
5886 return read_properties(popen(cmd, "r"), "\t", read_ref);
5890 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
5892 if (!strcmp(name, "i18n.commitencoding"))
5893 string_ncopy(opt_encoding, value, valuelen);
5895 if (!strcmp(name, "core.editor"))
5896 string_ncopy(opt_editor, value, valuelen);
5898 /* branch.<head>.remote */
5900 !strncmp(name, "branch.", 7) &&
5901 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5902 !strcmp(name + 7 + strlen(opt_head), ".remote"))
5903 string_ncopy(opt_remote, value, valuelen);
5905 if (*opt_head && *opt_remote &&
5906 !strncmp(name, "branch.", 7) &&
5907 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5908 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
5909 size_t from = strlen(opt_remote);
5911 if (!prefixcmp(value, "refs/heads/")) {
5912 value += STRING_SIZE("refs/heads/");
5913 valuelen -= STRING_SIZE("refs/heads/");
5916 if (!string_format_from(opt_remote, &from, "/%s", value))
5924 load_git_config(void)
5926 return read_properties(popen("git " GIT_CONFIG " --list", "r"),
5927 "=", read_repo_config_option);
5931 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
5933 if (!opt_git_dir[0]) {
5934 string_ncopy(opt_git_dir, name, namelen);
5936 } else if (opt_is_inside_work_tree == -1) {
5937 /* This can be 3 different values depending on the
5938 * version of git being used. If git-rev-parse does not
5939 * understand --is-inside-work-tree it will simply echo
5940 * the option else either "true" or "false" is printed.
5941 * Default to true for the unknown case. */
5942 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
5944 } else if (opt_cdup[0] == ' ') {
5945 string_ncopy(opt_cdup, name, namelen);
5947 if (!prefixcmp(name, "refs/heads/")) {
5948 namelen -= STRING_SIZE("refs/heads/");
5949 name += STRING_SIZE("refs/heads/");
5950 string_ncopy(opt_head, name, namelen);
5958 load_repo_info(void)
5961 FILE *pipe = popen("(git rev-parse --git-dir --is-inside-work-tree "
5962 " --show-cdup; git symbolic-ref HEAD) 2>/dev/null", "r");
5964 /* XXX: The line outputted by "--show-cdup" can be empty so
5965 * initialize it to something invalid to make it possible to
5966 * detect whether it has been set or not. */
5969 result = read_properties(pipe, "=", read_repo_info);
5970 if (opt_cdup[0] == ' ')
5977 read_properties(FILE *pipe, const char *separators,
5978 int (*read_property)(char *, size_t, char *, size_t))
5980 char buffer[BUFSIZ];
5987 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
5992 name = chomp_string(name);
5993 namelen = strcspn(name, separators);
5995 if (name[namelen]) {
5997 value = chomp_string(name + namelen + 1);
5998 valuelen = strlen(value);
6005 state = read_property(name, namelen, value, valuelen);
6008 if (state != ERR && ferror(pipe))
6021 static void __NORETURN
6024 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6030 static void __NORETURN
6031 die(const char *err, ...)
6037 va_start(args, err);
6038 fputs("tig: ", stderr);
6039 vfprintf(stderr, err, args);
6040 fputs("\n", stderr);
6047 warn(const char *msg, ...)
6051 va_start(args, msg);
6052 fputs("tig warning: ", stderr);
6053 vfprintf(stderr, msg, args);
6054 fputs("\n", stderr);
6059 main(int argc, const char *argv[])
6062 enum request request;
6065 signal(SIGINT, quit);
6067 if (setlocale(LC_ALL, "")) {
6068 char *codeset = nl_langinfo(CODESET);
6070 string_ncopy(opt_codeset, codeset, strlen(codeset));
6073 if (load_repo_info() == ERR)
6074 die("Failed to load repo info.");
6076 if (load_options() == ERR)
6077 die("Failed to load user config.");
6079 if (load_git_config() == ERR)
6080 die("Failed to load repo config.");
6082 request = parse_options(argc, argv);
6083 if (request == REQ_NONE)
6086 /* Require a git repository unless when running in pager mode. */
6087 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6088 die("Not a git repository");
6090 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6093 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6094 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6095 if (opt_iconv == ICONV_NONE)
6096 die("Failed to initialize character set conversion");
6099 if (load_refs() == ERR)
6100 die("Failed to load refs.");
6102 foreach_view (view, i)
6103 view->cmd_env = getenv(view->cmd_env);
6107 while (view_driver(display[current_view], request)) {
6111 foreach_view (view, i)
6113 view = display[current_view];
6115 /* Refresh, accept single keystroke of input */
6116 key = wgetch(status_win);
6118 /* wgetch() with nodelay() enabled returns ERR when there's no
6125 request = get_keybinding(view->keymap, key);
6127 /* Some low-level request handling. This keeps access to
6128 * status_win restricted. */
6132 char *cmd = read_prompt(":");
6134 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
6135 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
6136 request = REQ_VIEW_DIFF;
6138 request = REQ_VIEW_PAGER;
6141 /* Always reload^Wrerun commands from the prompt. */
6142 open_view(view, request, OPEN_RELOAD);
6149 case REQ_SEARCH_BACK:
6151 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6152 char *search = read_prompt(prompt);
6155 string_ncopy(opt_search, search, strlen(search));
6160 case REQ_SCREEN_RESIZE:
6164 getmaxyx(stdscr, height, width);
6166 /* Resize the status view and let the view driver take
6167 * care of resizing the displayed views. */
6168 wresize(status_win, 1, width);
6169 mvwin(status_win, height - 1, 0);
6170 wrefresh(status_win);