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_head_rev[SIZEOF_REV] = "";
484 static char opt_remote[SIZEOF_REF] = "";
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;
497 #define is_initial_commit() (!*opt_head_rev)
498 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || !strcmp(opt_head_rev, (rev)))
501 parse_options(int argc, const char *argv[])
503 enum request request = REQ_VIEW_MAIN;
505 const char *subcommand;
506 bool seen_dashdash = FALSE;
509 if (!isatty(STDIN_FILENO)) {
511 return REQ_VIEW_PAGER;
515 return REQ_VIEW_MAIN;
517 subcommand = argv[1];
518 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
519 if (!strcmp(subcommand, "-S"))
520 warn("`-S' has been deprecated; use `tig status' instead");
522 warn("ignoring arguments after `%s'", subcommand);
523 return REQ_VIEW_STATUS;
525 } else if (!strcmp(subcommand, "blame")) {
526 if (argc <= 2 || argc > 4)
527 die("invalid number of options to blame\n\n%s", usage);
531 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
535 string_ncopy(opt_file, argv[i], strlen(argv[i]));
536 return REQ_VIEW_BLAME;
538 } else if (!strcmp(subcommand, "show")) {
539 request = REQ_VIEW_DIFF;
541 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
542 request = subcommand[0] == 'l' ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
543 warn("`tig %s' has been deprecated", subcommand);
550 /* XXX: This is vulnerable to the user overriding
551 * options required for the main view parser. */
552 string_copy(opt_cmd, TIG_MAIN_BASE);
554 string_format(opt_cmd, "git %s", subcommand);
556 buf_size = strlen(opt_cmd);
558 for (i = 1 + !!subcommand; i < argc; i++) {
559 const char *opt = argv[i];
561 if (seen_dashdash || !strcmp(opt, "--")) {
562 seen_dashdash = TRUE;
564 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
565 printf("tig version %s\n", TIG_VERSION);
568 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
569 printf("%s\n", usage);
573 opt_cmd[buf_size++] = ' ';
574 buf_size = sq_quote(opt_cmd, buf_size, opt);
575 if (buf_size >= sizeof(opt_cmd))
576 die("command too long");
579 opt_cmd[buf_size] = 0;
586 * Line-oriented content detection.
590 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
591 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
592 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
593 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
594 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
595 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
596 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
597 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
598 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
599 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
600 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
601 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
602 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
603 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
604 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
605 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
606 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
607 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
608 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
609 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
610 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
611 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
612 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
613 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
614 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
615 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
616 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
617 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
618 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
619 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
620 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
621 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
622 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
623 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
624 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
625 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
626 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
627 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
628 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
629 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
630 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
631 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
632 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
633 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
634 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
635 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
636 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
637 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
638 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
639 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
640 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
641 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
642 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
643 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
646 #define LINE(type, line, fg, bg, attr) \
654 const char *name; /* Option name. */
655 int namelen; /* Size of option name. */
656 const char *line; /* The start of line to match. */
657 int linelen; /* Size of string to match. */
658 int fg, bg, attr; /* Color and text attributes for the lines. */
661 static struct line_info line_info[] = {
662 #define LINE(type, line, fg, bg, attr) \
663 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
668 static enum line_type
669 get_line_type(const char *line)
671 int linelen = strlen(line);
674 for (type = 0; type < ARRAY_SIZE(line_info); type++)
675 /* Case insensitive search matches Signed-off-by lines better. */
676 if (linelen >= line_info[type].linelen &&
677 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
684 get_line_attr(enum line_type type)
686 assert(type < ARRAY_SIZE(line_info));
687 return COLOR_PAIR(type) | line_info[type].attr;
690 static struct line_info *
691 get_line_info(const char *name)
693 size_t namelen = strlen(name);
696 for (type = 0; type < ARRAY_SIZE(line_info); type++)
697 if (namelen == line_info[type].namelen &&
698 !string_enum_compare(line_info[type].name, name, namelen))
699 return &line_info[type];
707 int default_bg = line_info[LINE_DEFAULT].bg;
708 int default_fg = line_info[LINE_DEFAULT].fg;
713 if (assume_default_colors(default_fg, default_bg) == ERR) {
714 default_bg = COLOR_BLACK;
715 default_fg = COLOR_WHITE;
718 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
719 struct line_info *info = &line_info[type];
720 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
721 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
723 init_pair(type, fg, bg);
731 unsigned int selected:1;
732 unsigned int dirty:1;
734 void *data; /* User data */
744 enum request request;
745 struct keybinding *next;
748 static struct keybinding default_keybindings[] = {
750 { 'm', REQ_VIEW_MAIN },
751 { 'd', REQ_VIEW_DIFF },
752 { 'l', REQ_VIEW_LOG },
753 { 't', REQ_VIEW_TREE },
754 { 'f', REQ_VIEW_BLOB },
755 { 'B', REQ_VIEW_BLAME },
756 { 'p', REQ_VIEW_PAGER },
757 { 'h', REQ_VIEW_HELP },
758 { 'S', REQ_VIEW_STATUS },
759 { 'c', REQ_VIEW_STAGE },
761 /* View manipulation */
762 { 'q', REQ_VIEW_CLOSE },
763 { KEY_TAB, REQ_VIEW_NEXT },
764 { KEY_RETURN, REQ_ENTER },
765 { KEY_UP, REQ_PREVIOUS },
766 { KEY_DOWN, REQ_NEXT },
767 { 'R', REQ_REFRESH },
768 { KEY_F(5), REQ_REFRESH },
769 { 'O', REQ_MAXIMIZE },
771 /* Cursor navigation */
772 { 'k', REQ_MOVE_UP },
773 { 'j', REQ_MOVE_DOWN },
774 { KEY_HOME, REQ_MOVE_FIRST_LINE },
775 { KEY_END, REQ_MOVE_LAST_LINE },
776 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
777 { ' ', REQ_MOVE_PAGE_DOWN },
778 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
779 { 'b', REQ_MOVE_PAGE_UP },
780 { '-', REQ_MOVE_PAGE_UP },
783 { KEY_IC, REQ_SCROLL_LINE_UP },
784 { KEY_DC, REQ_SCROLL_LINE_DOWN },
785 { 'w', REQ_SCROLL_PAGE_UP },
786 { 's', REQ_SCROLL_PAGE_DOWN },
790 { '?', REQ_SEARCH_BACK },
791 { 'n', REQ_FIND_NEXT },
792 { 'N', REQ_FIND_PREV },
796 { 'z', REQ_STOP_LOADING },
797 { 'v', REQ_SHOW_VERSION },
798 { 'r', REQ_SCREEN_REDRAW },
799 { '.', REQ_TOGGLE_LINENO },
800 { 'D', REQ_TOGGLE_DATE },
801 { 'A', REQ_TOGGLE_AUTHOR },
802 { 'g', REQ_TOGGLE_REV_GRAPH },
803 { 'F', REQ_TOGGLE_REFS },
805 { 'u', REQ_STATUS_UPDATE },
806 { '!', REQ_STATUS_REVERT },
807 { 'M', REQ_STATUS_MERGE },
808 { '@', REQ_STAGE_NEXT },
809 { ',', REQ_TREE_PARENT },
812 /* Using the ncurses SIGWINCH handler. */
813 { KEY_RESIZE, REQ_SCREEN_RESIZE },
816 #define KEYMAP_INFO \
830 #define KEYMAP_(name) KEYMAP_##name
835 static struct int_map keymap_table[] = {
836 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
841 #define set_keymap(map, name) \
842 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
844 static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)];
847 add_keybinding(enum keymap keymap, enum request request, int key)
849 struct keybinding *keybinding;
851 keybinding = calloc(1, sizeof(*keybinding));
853 die("Failed to allocate keybinding");
855 keybinding->alias = key;
856 keybinding->request = request;
857 keybinding->next = keybindings[keymap];
858 keybindings[keymap] = keybinding;
861 /* Looks for a key binding first in the given map, then in the generic map, and
862 * lastly in the default keybindings. */
864 get_keybinding(enum keymap keymap, int key)
866 struct keybinding *kbd;
869 for (kbd = keybindings[keymap]; kbd; kbd = kbd->next)
870 if (kbd->alias == key)
873 for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next)
874 if (kbd->alias == key)
877 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
878 if (default_keybindings[i].alias == key)
879 return default_keybindings[i].request;
881 return (enum request) key;
890 static struct key key_table[] = {
891 { "Enter", KEY_RETURN },
893 { "Backspace", KEY_BACKSPACE },
895 { "Escape", KEY_ESC },
896 { "Left", KEY_LEFT },
897 { "Right", KEY_RIGHT },
899 { "Down", KEY_DOWN },
900 { "Insert", KEY_IC },
901 { "Delete", KEY_DC },
903 { "Home", KEY_HOME },
905 { "PageUp", KEY_PPAGE },
906 { "PageDown", KEY_NPAGE },
916 { "F10", KEY_F(10) },
917 { "F11", KEY_F(11) },
918 { "F12", KEY_F(12) },
922 get_key_value(const char *name)
926 for (i = 0; i < ARRAY_SIZE(key_table); i++)
927 if (!strcasecmp(key_table[i].name, name))
928 return key_table[i].value;
930 if (strlen(name) == 1 && isprint(*name))
937 get_key_name(int key_value)
939 static char key_char[] = "'X'";
940 const char *seq = NULL;
943 for (key = 0; key < ARRAY_SIZE(key_table); key++)
944 if (key_table[key].value == key_value)
945 seq = key_table[key].name;
949 isprint(key_value)) {
950 key_char[1] = (char) key_value;
954 return seq ? seq : "(no key)";
958 get_key(enum request request)
960 static char buf[BUFSIZ];
967 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
968 struct keybinding *keybinding = &default_keybindings[i];
970 if (keybinding->request != request)
973 if (!string_format_from(buf, &pos, "%s%s", sep,
974 get_key_name(keybinding->alias)))
975 return "Too many keybindings!";
985 char cmd[SIZEOF_STR];
988 static struct run_request *run_request;
989 static size_t run_requests;
992 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
994 struct run_request *req;
995 char cmd[SIZEOF_STR];
998 for (bufpos = 0; argc > 0; argc--, argv++)
999 if (!string_format_from(cmd, &bufpos, "%s ", *argv))
1002 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1007 req = &run_request[run_requests++];
1008 string_copy(req->cmd, cmd);
1009 req->keymap = keymap;
1012 return REQ_NONE + run_requests;
1015 static struct run_request *
1016 get_run_request(enum request request)
1018 if (request <= REQ_NONE)
1020 return &run_request[request - REQ_NONE - 1];
1024 add_builtin_run_requests(void)
1029 const char *argv[1];
1031 { KEYMAP_MAIN, 'C', { "git cherry-pick %(commit)" } },
1032 { KEYMAP_GENERIC, 'G', { "git gc" } },
1036 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1039 req = add_run_request(reqs[i].keymap, reqs[i].key, 1, reqs[i].argv);
1040 if (req != REQ_NONE)
1041 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1046 * User config file handling.
1049 static struct int_map color_map[] = {
1050 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1062 #define set_color(color, name) \
1063 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1065 static struct int_map attr_map[] = {
1066 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1073 ATTR_MAP(UNDERLINE),
1076 #define set_attribute(attr, name) \
1077 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1079 static int config_lineno;
1080 static bool config_errors;
1081 static const char *config_msg;
1083 /* Wants: object fgcolor bgcolor [attr] */
1085 option_color_command(int argc, const char *argv[])
1087 struct line_info *info;
1089 if (argc != 3 && argc != 4) {
1090 config_msg = "Wrong number of arguments given to color command";
1094 info = get_line_info(argv[0]);
1096 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1097 info = get_line_info("delimiter");
1099 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1100 info = get_line_info("date");
1103 config_msg = "Unknown color name";
1108 if (set_color(&info->fg, argv[1]) == ERR ||
1109 set_color(&info->bg, argv[2]) == ERR) {
1110 config_msg = "Unknown color";
1114 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1115 config_msg = "Unknown attribute";
1122 static bool parse_bool(const char *s)
1124 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1125 !strcmp(s, "yes")) ? TRUE : FALSE;
1129 parse_int(const char *s, int default_value, int min, int max)
1131 int value = atoi(s);
1133 return (value < min || value > max) ? default_value : value;
1136 /* Wants: name = value */
1138 option_set_command(int argc, const char *argv[])
1141 config_msg = "Wrong number of arguments given to set command";
1145 if (strcmp(argv[1], "=")) {
1146 config_msg = "No value assigned";
1150 if (!strcmp(argv[0], "show-author")) {
1151 opt_author = parse_bool(argv[2]);
1155 if (!strcmp(argv[0], "show-date")) {
1156 opt_date = parse_bool(argv[2]);
1160 if (!strcmp(argv[0], "show-rev-graph")) {
1161 opt_rev_graph = parse_bool(argv[2]);
1165 if (!strcmp(argv[0], "show-refs")) {
1166 opt_show_refs = parse_bool(argv[2]);
1170 if (!strcmp(argv[0], "show-line-numbers")) {
1171 opt_line_number = parse_bool(argv[2]);
1175 if (!strcmp(argv[0], "line-graphics")) {
1176 opt_line_graphics = parse_bool(argv[2]);
1180 if (!strcmp(argv[0], "line-number-interval")) {
1181 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1185 if (!strcmp(argv[0], "author-width")) {
1186 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1190 if (!strcmp(argv[0], "tab-size")) {
1191 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1195 if (!strcmp(argv[0], "commit-encoding")) {
1196 const char *arg = argv[2];
1197 int arglen = strlen(arg);
1202 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1203 config_msg = "Unmatched quotation";
1206 arg += 1; arglen -= 2;
1208 string_ncopy(opt_encoding, arg, strlen(arg));
1213 config_msg = "Unknown variable name";
1217 /* Wants: mode request key */
1219 option_bind_command(int argc, const char *argv[])
1221 enum request request;
1226 config_msg = "Wrong number of arguments given to bind command";
1230 if (set_keymap(&keymap, argv[0]) == ERR) {
1231 config_msg = "Unknown key map";
1235 key = get_key_value(argv[1]);
1237 config_msg = "Unknown key";
1241 request = get_request(argv[2]);
1242 if (request == REQ_NONE) {
1243 const char *obsolete[] = { "cherry-pick" };
1244 size_t namelen = strlen(argv[2]);
1247 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1248 if (namelen == strlen(obsolete[i]) &&
1249 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1250 config_msg = "Obsolete request name";
1255 if (request == REQ_NONE && *argv[2]++ == '!')
1256 request = add_run_request(keymap, key, argc - 2, argv + 2);
1257 if (request == REQ_NONE) {
1258 config_msg = "Unknown request name";
1262 add_keybinding(keymap, request, key);
1268 set_option(const char *opt, char *value)
1270 const char *argv[SIZEOF_ARG];
1275 while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) {
1276 argv[argc++] = value;
1279 /* Nothing more to tokenize or last available token. */
1280 if (!*value || argc >= ARRAY_SIZE(argv))
1284 while (isspace(*value))
1288 if (!strcmp(opt, "color"))
1289 return option_color_command(argc, argv);
1291 if (!strcmp(opt, "set"))
1292 return option_set_command(argc, argv);
1294 if (!strcmp(opt, "bind"))
1295 return option_bind_command(argc, argv);
1297 config_msg = "Unknown option command";
1302 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1307 config_msg = "Internal error";
1309 /* Check for comment markers, since read_properties() will
1310 * only ensure opt and value are split at first " \t". */
1311 optlen = strcspn(opt, "#");
1315 if (opt[optlen] != 0) {
1316 config_msg = "No option value";
1320 /* Look for comment endings in the value. */
1321 size_t len = strcspn(value, "#");
1323 if (len < valuelen) {
1325 value[valuelen] = 0;
1328 status = set_option(opt, value);
1331 if (status == ERR) {
1332 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1333 config_lineno, (int) optlen, opt, config_msg);
1334 config_errors = TRUE;
1337 /* Always keep going if errors are encountered. */
1342 load_option_file(const char *path)
1346 /* It's ok that the file doesn't exist. */
1347 file = fopen(path, "r");
1352 config_errors = FALSE;
1354 if (read_properties(file, " \t", read_option) == ERR ||
1355 config_errors == TRUE)
1356 fprintf(stderr, "Errors while loading %s.\n", path);
1362 const char *home = getenv("HOME");
1363 const char *tigrc_user = getenv("TIGRC_USER");
1364 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1365 char buf[SIZEOF_STR];
1367 add_builtin_run_requests();
1369 if (!tigrc_system) {
1370 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1374 load_option_file(tigrc_system);
1377 if (!home || !string_format(buf, "%s/.tigrc", home))
1381 load_option_file(tigrc_user);
1394 /* The display array of active views and the index of the current view. */
1395 static struct view *display[2];
1396 static unsigned int current_view;
1398 /* Reading from the prompt? */
1399 static bool input_mode = FALSE;
1401 #define foreach_displayed_view(view, i) \
1402 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1404 #define displayed_views() (display[1] != NULL ? 2 : 1)
1406 /* Current head and commit ID */
1407 static char ref_blob[SIZEOF_REF] = "";
1408 static char ref_commit[SIZEOF_REF] = "HEAD";
1409 static char ref_head[SIZEOF_REF] = "HEAD";
1412 const char *name; /* View name */
1413 const char *cmd_fmt; /* Default command line format */
1414 const char *cmd_env; /* Command line set via environment */
1415 const char *id; /* Points to either of ref_{head,commit,blob} */
1417 struct view_ops *ops; /* View operations */
1419 enum keymap keymap; /* What keymap does this view have */
1420 bool git_dir; /* Whether the view requires a git directory. */
1422 char cmd[SIZEOF_STR]; /* Command buffer */
1423 char ref[SIZEOF_REF]; /* Hovered commit reference */
1424 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1426 int height, width; /* The width and height of the main window */
1427 WINDOW *win; /* The main window */
1428 WINDOW *title; /* The title window living below the main window */
1431 unsigned long offset; /* Offset of the window top */
1432 unsigned long lineno; /* Current line number */
1435 char grep[SIZEOF_STR]; /* Search string */
1436 regex_t *regex; /* Pre-compiled regex */
1438 /* If non-NULL, points to the view that opened this view. If this view
1439 * is closed tig will switch back to the parent view. */
1440 struct view *parent;
1443 size_t lines; /* Total number of lines */
1444 struct line *line; /* Line index */
1445 size_t line_alloc; /* Total number of allocated lines */
1446 size_t line_size; /* Total number of used lines */
1447 unsigned int digits; /* Number of digits in the lines member. */
1450 struct line *curline; /* Line currently being drawn. */
1451 enum line_type curtype; /* Attribute currently used for drawing. */
1452 unsigned long col; /* Column when drawing. */
1460 /* What type of content being displayed. Used in the title bar. */
1462 /* Open and reads in all view content. */
1463 bool (*open)(struct view *view);
1464 /* Read one line; updates view->line. */
1465 bool (*read)(struct view *view, char *data);
1466 /* Draw one line; @lineno must be < view->height. */
1467 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1468 /* Depending on view handle a special requests. */
1469 enum request (*request)(struct view *view, enum request request, struct line *line);
1470 /* Search for regex in a line. */
1471 bool (*grep)(struct view *view, struct line *line);
1473 void (*select)(struct view *view, struct line *line);
1476 static struct view_ops blame_ops;
1477 static struct view_ops blob_ops;
1478 static struct view_ops help_ops;
1479 static struct view_ops log_ops;
1480 static struct view_ops main_ops;
1481 static struct view_ops pager_ops;
1482 static struct view_ops stage_ops;
1483 static struct view_ops status_ops;
1484 static struct view_ops tree_ops;
1486 #define VIEW_STR(name, cmd, env, ref, ops, map, git) \
1487 { name, cmd, #env, ref, ops, map, git }
1489 #define VIEW_(id, name, ops, git, ref) \
1490 VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1493 static struct view views[] = {
1494 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1495 VIEW_(DIFF, "diff", &pager_ops, TRUE, ref_commit),
1496 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1497 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1498 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1499 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1500 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1501 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1502 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1503 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1506 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1507 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1509 #define foreach_view(view, i) \
1510 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1512 #define view_is_displayed(view) \
1513 (view == display[0] || view == display[1])
1520 static int line_graphics[] = {
1521 /* LINE_GRAPHIC_VLINE: */ '|'
1525 set_view_attr(struct view *view, enum line_type type)
1527 if (!view->curline->selected && view->curtype != type) {
1528 wattrset(view->win, get_line_attr(type));
1529 wchgat(view->win, -1, 0, type, NULL);
1530 view->curtype = type;
1535 draw_chars(struct view *view, enum line_type type, const char *string,
1536 int max_len, bool use_tilde)
1540 int trimmed = FALSE;
1546 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1548 col = len = strlen(string);
1549 if (len > max_len) {
1553 col = len = max_len;
1558 set_view_attr(view, type);
1559 waddnstr(view->win, string, len);
1560 if (trimmed && use_tilde) {
1561 set_view_attr(view, LINE_DELIMITER);
1562 waddch(view->win, '~');
1570 draw_space(struct view *view, enum line_type type, int max, int spaces)
1572 static char space[] = " ";
1575 spaces = MIN(max, spaces);
1577 while (spaces > 0) {
1578 int len = MIN(spaces, sizeof(space) - 1);
1580 col += draw_chars(view, type, space, spaces, FALSE);
1588 draw_lineno(struct view *view, unsigned int lineno)
1591 int digits3 = view->digits < 3 ? 3 : view->digits;
1592 int max_number = MIN(digits3, STRING_SIZE(number));
1593 int max = view->width - view->col;
1596 if (max < max_number)
1599 lineno += view->offset + 1;
1600 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1601 static char fmt[] = "%1ld";
1603 if (view->digits <= 9)
1604 fmt[1] = '0' + digits3;
1606 if (!string_format(number, fmt, lineno))
1608 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1610 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1614 set_view_attr(view, LINE_DEFAULT);
1615 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1620 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1623 return view->width - view->col <= 0;
1627 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1629 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1630 return view->width - view->col <= 0;
1634 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1636 int max = view->width - view->col;
1642 set_view_attr(view, type);
1643 /* Using waddch() instead of waddnstr() ensures that
1644 * they'll be rendered correctly for the cursor line. */
1645 for (i = 0; i < size; i++)
1646 waddch(view->win, graphic[i]);
1650 waddch(view->win, ' ');
1654 return view->width - view->col <= 0;
1658 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1660 int max = MIN(view->width - view->col, len);
1664 col = draw_chars(view, type, text, max - 1, trim);
1666 col = draw_space(view, type, max - 1, max - 1);
1668 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1669 return view->width - view->col <= 0;
1673 draw_date(struct view *view, struct tm *time)
1675 char buf[DATE_COLS];
1680 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1681 date = timelen ? buf : NULL;
1683 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1687 draw_view_line(struct view *view, unsigned int lineno)
1690 bool selected = (view->offset + lineno == view->lineno);
1693 assert(view_is_displayed(view));
1695 if (view->offset + lineno >= view->lines)
1698 line = &view->line[view->offset + lineno];
1700 wmove(view->win, lineno, 0);
1702 view->curline = line;
1703 view->curtype = LINE_NONE;
1704 line->selected = FALSE;
1707 set_view_attr(view, LINE_CURSOR);
1708 line->selected = TRUE;
1709 view->ops->select(view, line);
1710 } else if (line->selected) {
1711 wclrtoeol(view->win);
1714 scrollok(view->win, FALSE);
1715 draw_ok = view->ops->draw(view, line, lineno);
1716 scrollok(view->win, TRUE);
1722 redraw_view_dirty(struct view *view)
1727 for (lineno = 0; lineno < view->height; lineno++) {
1728 struct line *line = &view->line[view->offset + lineno];
1734 if (!draw_view_line(view, lineno))
1740 redrawwin(view->win);
1742 wnoutrefresh(view->win);
1744 wrefresh(view->win);
1748 redraw_view_from(struct view *view, int lineno)
1750 assert(0 <= lineno && lineno < view->height);
1752 for (; lineno < view->height; lineno++) {
1753 if (!draw_view_line(view, lineno))
1757 redrawwin(view->win);
1759 wnoutrefresh(view->win);
1761 wrefresh(view->win);
1765 redraw_view(struct view *view)
1768 redraw_view_from(view, 0);
1773 update_view_title(struct view *view)
1775 char buf[SIZEOF_STR];
1776 char state[SIZEOF_STR];
1777 size_t bufpos = 0, statelen = 0;
1779 assert(view_is_displayed(view));
1781 if (view != VIEW(REQ_VIEW_STATUS) && (view->lines || view->pipe)) {
1782 unsigned int view_lines = view->offset + view->height;
1783 unsigned int lines = view->lines
1784 ? MIN(view_lines, view->lines) * 100 / view->lines
1787 string_format_from(state, &statelen, "- %s %d of %d (%d%%)",
1794 time_t secs = time(NULL) - view->start_time;
1796 /* Three git seconds are a long time ... */
1798 string_format_from(state, &statelen, " %lds", secs);
1802 string_format_from(buf, &bufpos, "[%s]", view->name);
1803 if (*view->ref && bufpos < view->width) {
1804 size_t refsize = strlen(view->ref);
1805 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
1807 if (minsize < view->width)
1808 refsize = view->width - minsize + 7;
1809 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
1812 if (statelen && bufpos < view->width) {
1813 string_format_from(buf, &bufpos, " %s", state);
1816 if (view == display[current_view])
1817 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
1819 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
1821 mvwaddnstr(view->title, 0, 0, buf, bufpos);
1822 wclrtoeol(view->title);
1823 wmove(view->title, 0, view->width - 1);
1826 wnoutrefresh(view->title);
1828 wrefresh(view->title);
1832 resize_display(void)
1835 struct view *base = display[0];
1836 struct view *view = display[1] ? display[1] : display[0];
1838 /* Setup window dimensions */
1840 getmaxyx(stdscr, base->height, base->width);
1842 /* Make room for the status window. */
1846 /* Horizontal split. */
1847 view->width = base->width;
1848 view->height = SCALE_SPLIT_VIEW(base->height);
1849 base->height -= view->height;
1851 /* Make room for the title bar. */
1855 /* Make room for the title bar. */
1860 foreach_displayed_view (view, i) {
1862 view->win = newwin(view->height, 0, offset, 0);
1864 die("Failed to create %s view", view->name);
1866 scrollok(view->win, TRUE);
1868 view->title = newwin(1, 0, offset + view->height, 0);
1870 die("Failed to create title window");
1873 wresize(view->win, view->height, view->width);
1874 mvwin(view->win, offset, 0);
1875 mvwin(view->title, offset + view->height, 0);
1878 offset += view->height + 1;
1883 redraw_display(void)
1888 foreach_displayed_view (view, i) {
1890 update_view_title(view);
1895 update_display_cursor(struct view *view)
1897 /* Move the cursor to the right-most column of the cursor line.
1899 * XXX: This could turn out to be a bit expensive, but it ensures that
1900 * the cursor does not jump around. */
1902 wmove(view->win, view->lineno - view->offset, view->width - 1);
1903 wrefresh(view->win);
1911 /* Scrolling backend */
1913 do_scroll_view(struct view *view, int lines)
1915 bool redraw_current_line = FALSE;
1917 /* The rendering expects the new offset. */
1918 view->offset += lines;
1920 assert(0 <= view->offset && view->offset < view->lines);
1923 /* Move current line into the view. */
1924 if (view->lineno < view->offset) {
1925 view->lineno = view->offset;
1926 redraw_current_line = TRUE;
1927 } else if (view->lineno >= view->offset + view->height) {
1928 view->lineno = view->offset + view->height - 1;
1929 redraw_current_line = TRUE;
1932 assert(view->offset <= view->lineno && view->lineno < view->lines);
1934 /* Redraw the whole screen if scrolling is pointless. */
1935 if (view->height < ABS(lines)) {
1939 int line = lines > 0 ? view->height - lines : 0;
1940 int end = line + ABS(lines);
1942 wscrl(view->win, lines);
1944 for (; line < end; line++) {
1945 if (!draw_view_line(view, line))
1949 if (redraw_current_line)
1950 draw_view_line(view, view->lineno - view->offset);
1953 redrawwin(view->win);
1954 wrefresh(view->win);
1958 /* Scroll frontend */
1960 scroll_view(struct view *view, enum request request)
1964 assert(view_is_displayed(view));
1967 case REQ_SCROLL_PAGE_DOWN:
1968 lines = view->height;
1969 case REQ_SCROLL_LINE_DOWN:
1970 if (view->offset + lines > view->lines)
1971 lines = view->lines - view->offset;
1973 if (lines == 0 || view->offset + view->height >= view->lines) {
1974 report("Cannot scroll beyond the last line");
1979 case REQ_SCROLL_PAGE_UP:
1980 lines = view->height;
1981 case REQ_SCROLL_LINE_UP:
1982 if (lines > view->offset)
1983 lines = view->offset;
1986 report("Cannot scroll beyond the first line");
1994 die("request %d not handled in switch", request);
1997 do_scroll_view(view, lines);
2002 move_view(struct view *view, enum request request)
2004 int scroll_steps = 0;
2008 case REQ_MOVE_FIRST_LINE:
2009 steps = -view->lineno;
2012 case REQ_MOVE_LAST_LINE:
2013 steps = view->lines - view->lineno - 1;
2016 case REQ_MOVE_PAGE_UP:
2017 steps = view->height > view->lineno
2018 ? -view->lineno : -view->height;
2021 case REQ_MOVE_PAGE_DOWN:
2022 steps = view->lineno + view->height >= view->lines
2023 ? view->lines - view->lineno - 1 : view->height;
2035 die("request %d not handled in switch", request);
2038 if (steps <= 0 && view->lineno == 0) {
2039 report("Cannot move beyond the first line");
2042 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2043 report("Cannot move beyond the last line");
2047 /* Move the current line */
2048 view->lineno += steps;
2049 assert(0 <= view->lineno && view->lineno < view->lines);
2051 /* Check whether the view needs to be scrolled */
2052 if (view->lineno < view->offset ||
2053 view->lineno >= view->offset + view->height) {
2054 scroll_steps = steps;
2055 if (steps < 0 && -steps > view->offset) {
2056 scroll_steps = -view->offset;
2058 } else if (steps > 0) {
2059 if (view->lineno == view->lines - 1 &&
2060 view->lines > view->height) {
2061 scroll_steps = view->lines - view->offset - 1;
2062 if (scroll_steps >= view->height)
2063 scroll_steps -= view->height - 1;
2068 if (!view_is_displayed(view)) {
2069 view->offset += scroll_steps;
2070 assert(0 <= view->offset && view->offset < view->lines);
2071 view->ops->select(view, &view->line[view->lineno]);
2075 /* Repaint the old "current" line if we be scrolling */
2076 if (ABS(steps) < view->height)
2077 draw_view_line(view, view->lineno - steps - view->offset);
2080 do_scroll_view(view, scroll_steps);
2084 /* Draw the current line */
2085 draw_view_line(view, view->lineno - view->offset);
2087 redrawwin(view->win);
2088 wrefresh(view->win);
2097 static void search_view(struct view *view, enum request request);
2100 find_next_line(struct view *view, unsigned long lineno, struct line *line)
2102 assert(view_is_displayed(view));
2104 if (!view->ops->grep(view, line))
2107 if (lineno - view->offset >= view->height) {
2108 view->offset = lineno;
2109 view->lineno = lineno;
2113 unsigned long old_lineno = view->lineno - view->offset;
2115 view->lineno = lineno;
2116 draw_view_line(view, old_lineno);
2118 draw_view_line(view, view->lineno - view->offset);
2119 redrawwin(view->win);
2120 wrefresh(view->win);
2123 report("Line %ld matches '%s'", lineno + 1, view->grep);
2128 find_next(struct view *view, enum request request)
2130 unsigned long lineno = view->lineno;
2135 report("No previous search");
2137 search_view(view, request);
2147 case REQ_SEARCH_BACK:
2156 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2157 lineno += direction;
2159 /* Note, lineno is unsigned long so will wrap around in which case it
2160 * will become bigger than view->lines. */
2161 for (; lineno < view->lines; lineno += direction) {
2162 struct line *line = &view->line[lineno];
2164 if (find_next_line(view, lineno, line))
2168 report("No match found for '%s'", view->grep);
2172 search_view(struct view *view, enum request request)
2177 regfree(view->regex);
2180 view->regex = calloc(1, sizeof(*view->regex));
2185 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2186 if (regex_err != 0) {
2187 char buf[SIZEOF_STR] = "unknown error";
2189 regerror(regex_err, view->regex, buf, sizeof(buf));
2190 report("Search failed: %s", buf);
2194 string_copy(view->grep, opt_search);
2196 find_next(view, request);
2200 * Incremental updating
2204 reset_view(struct view *view)
2208 for (i = 0; i < view->lines; i++)
2209 free(view->line[i].data);
2216 view->line_size = 0;
2217 view->line_alloc = 0;
2222 end_update(struct view *view, bool force)
2226 while (!view->ops->read(view, NULL))
2229 set_nonblocking_input(FALSE);
2230 if (view->pipe == stdin)
2238 begin_update(struct view *view, bool refresh)
2241 string_copy(view->cmd, opt_cmd);
2243 /* When running random commands, initially show the
2244 * command in the title. However, it maybe later be
2245 * overwritten if a commit line is selected. */
2246 if (view == VIEW(REQ_VIEW_PAGER))
2247 string_copy(view->ref, view->cmd);
2251 } else if (view == VIEW(REQ_VIEW_TREE)) {
2252 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2253 char path[SIZEOF_STR];
2255 if (strcmp(view->vid, view->id))
2256 opt_path[0] = path[0] = 0;
2257 else if (sq_quote(path, 0, opt_path) >= sizeof(path))
2260 if (!string_format(view->cmd, format, view->id, path))
2263 } else if (!refresh) {
2264 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2265 const char *id = view->id;
2267 if (!string_format(view->cmd, format, id, id, id, id, id))
2270 /* Put the current ref_* value to the view title ref
2271 * member. This is needed by the blob view. Most other
2272 * views sets it automatically after loading because the
2273 * first line is a commit line. */
2274 string_copy_rev(view->ref, view->id);
2277 /* Special case for the pager view. */
2279 view->pipe = opt_pipe;
2282 view->pipe = popen(view->cmd, "r");
2288 set_nonblocking_input(TRUE);
2290 string_copy_rev(view->vid, view->id);
2292 view->start_time = time(NULL);
2297 #define ITEM_CHUNK_SIZE 256
2299 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2301 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2302 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2304 if (mem == NULL || num_chunks != num_chunks_new) {
2305 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2306 mem = realloc(mem, *size * item_size);
2312 static struct line *
2313 realloc_lines(struct view *view, size_t line_size)
2315 size_t alloc = view->line_alloc;
2316 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2317 sizeof(*view->line));
2323 view->line_alloc = alloc;
2324 view->line_size = line_size;
2329 update_view(struct view *view)
2331 char in_buffer[BUFSIZ];
2332 char out_buffer[BUFSIZ * 2];
2334 /* The number of lines to read. If too low it will cause too much
2335 * redrawing (and possible flickering), if too high responsiveness
2337 unsigned long lines = view->height;
2338 int redraw_from = -1;
2343 /* Only redraw if lines are visible. */
2344 if (view->offset + view->height >= view->lines)
2345 redraw_from = view->lines - view->offset;
2347 /* FIXME: This is probably not perfect for backgrounded views. */
2348 if (!realloc_lines(view, view->lines + lines))
2351 while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) {
2352 size_t linelen = strlen(line);
2355 line[linelen - 1] = 0;
2357 if (opt_iconv != ICONV_NONE) {
2358 ICONV_CONST char *inbuf = line;
2359 size_t inlen = linelen;
2361 char *outbuf = out_buffer;
2362 size_t outlen = sizeof(out_buffer);
2366 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2367 if (ret != (size_t) -1) {
2369 linelen = strlen(out_buffer);
2373 if (!view->ops->read(view, line))
2383 lines = view->lines;
2384 for (digits = 0; lines; digits++)
2387 /* Keep the displayed view in sync with line number scaling. */
2388 if (digits != view->digits) {
2389 view->digits = digits;
2394 if (ferror(view->pipe) && errno != 0) {
2395 report("Failed to read: %s", strerror(errno));
2396 end_update(view, TRUE);
2398 } else if (feof(view->pipe)) {
2400 end_update(view, FALSE);
2403 if (!view_is_displayed(view))
2406 if (view == VIEW(REQ_VIEW_TREE)) {
2407 /* Clear the view and redraw everything since the tree sorting
2408 * might have rearranged things. */
2411 } else if (redraw_from >= 0) {
2412 /* If this is an incremental update, redraw the previous line
2413 * since for commits some members could have changed when
2414 * loading the main view. */
2415 if (redraw_from > 0)
2418 /* Since revision graph visualization requires knowledge
2419 * about the parent commit, it causes a further one-off
2420 * needed to be redrawn for incremental updates. */
2421 if (redraw_from > 0 && opt_rev_graph)
2424 /* Incrementally draw avoids flickering. */
2425 redraw_view_from(view, redraw_from);
2428 if (view == VIEW(REQ_VIEW_BLAME))
2429 redraw_view_dirty(view);
2431 /* Update the title _after_ the redraw so that if the redraw picks up a
2432 * commit reference in view->ref it'll be available here. */
2433 update_view_title(view);
2437 report("Allocation failure");
2438 end_update(view, TRUE);
2442 static struct line *
2443 add_line_data(struct view *view, void *data, enum line_type type)
2445 struct line *line = &view->line[view->lines++];
2447 memset(line, 0, sizeof(*line));
2454 static struct line *
2455 add_line_text(struct view *view, const char *text, enum line_type type)
2457 char *data = text ? strdup(text) : NULL;
2459 return data ? add_line_data(view, data, type) : NULL;
2468 OPEN_DEFAULT = 0, /* Use default view switching. */
2469 OPEN_SPLIT = 1, /* Split current view. */
2470 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2471 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2472 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2473 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2477 open_view(struct view *prev, enum request request, enum open_flags flags)
2479 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2480 bool split = !!(flags & OPEN_SPLIT);
2481 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH));
2482 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2483 struct view *view = VIEW(request);
2484 int nviews = displayed_views();
2485 struct view *base_view = display[0];
2487 if (view == prev && nviews == 1 && !reload) {
2488 report("Already in %s view", view->name);
2492 if (view->git_dir && !opt_git_dir[0]) {
2493 report("The %s view is disabled in pager view", view->name);
2501 } else if (!nomaximize) {
2502 /* Maximize the current view. */
2503 memset(display, 0, sizeof(display));
2505 display[current_view] = view;
2508 /* Resize the view when switching between split- and full-screen,
2509 * or when switching between two different full-screen views. */
2510 if (nviews != displayed_views() ||
2511 (nviews == 1 && base_view != display[0]))
2515 end_update(view, TRUE);
2517 if (view->ops->open) {
2518 if (!view->ops->open(view)) {
2519 report("Failed to load %s view", view->name);
2523 } else if ((reload || strcmp(view->vid, view->id)) &&
2524 !begin_update(view, flags & OPEN_REFRESH)) {
2525 report("Failed to load %s view", view->name);
2529 if (split && prev->lineno - prev->offset >= prev->height) {
2530 /* Take the title line into account. */
2531 int lines = prev->lineno - prev->offset - prev->height + 1;
2533 /* Scroll the view that was split if the current line is
2534 * outside the new limited view. */
2535 do_scroll_view(prev, lines);
2538 if (prev && view != prev) {
2539 if (split && !backgrounded) {
2540 /* "Blur" the previous view. */
2541 update_view_title(prev);
2544 view->parent = prev;
2547 if (view->pipe && view->lines == 0) {
2548 /* Clear the old view and let the incremental updating refill
2552 } else if (view_is_displayed(view)) {
2557 /* If the view is backgrounded the above calls to report()
2558 * won't redraw the view title. */
2560 update_view_title(view);
2564 run_confirm(const char *cmd, const char *prompt)
2566 bool confirmation = prompt_yesno(prompt);
2571 return confirmation;
2575 open_external_viewer(const char *cmd)
2577 def_prog_mode(); /* save current tty modes */
2578 endwin(); /* restore original tty modes */
2580 fprintf(stderr, "Press Enter to continue");
2587 open_mergetool(const char *file)
2589 char cmd[SIZEOF_STR];
2590 char file_sq[SIZEOF_STR];
2592 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2593 string_format(cmd, "git mergetool %s", file_sq)) {
2594 open_external_viewer(cmd);
2599 open_editor(bool from_root, const char *file)
2601 char cmd[SIZEOF_STR];
2602 char file_sq[SIZEOF_STR];
2604 char *prefix = from_root ? opt_cdup : "";
2606 editor = getenv("GIT_EDITOR");
2607 if (!editor && *opt_editor)
2608 editor = opt_editor;
2610 editor = getenv("VISUAL");
2612 editor = getenv("EDITOR");
2616 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2617 string_format(cmd, "%s %s%s", editor, prefix, file_sq)) {
2618 open_external_viewer(cmd);
2623 open_run_request(enum request request)
2625 struct run_request *req = get_run_request(request);
2626 char buf[SIZEOF_STR * 2];
2631 report("Unknown run request");
2639 char *next = strstr(cmd, "%(");
2640 int len = next - cmd;
2647 } else if (!strncmp(next, "%(head)", 7)) {
2650 } else if (!strncmp(next, "%(commit)", 9)) {
2653 } else if (!strncmp(next, "%(blob)", 7)) {
2657 report("Unknown replacement in run request: `%s`", req->cmd);
2661 if (!string_format_from(buf, &bufpos, "%.*s%s", len, cmd, value))
2665 next = strchr(next, ')') + 1;
2669 open_external_viewer(buf);
2673 * User request switch noodle
2677 view_driver(struct view *view, enum request request)
2681 if (request == REQ_NONE) {
2686 if (request > REQ_NONE) {
2687 open_run_request(request);
2688 /* FIXME: When all views can refresh always do this. */
2689 if (view == VIEW(REQ_VIEW_STATUS) ||
2690 view == VIEW(REQ_VIEW_MAIN) ||
2691 view == VIEW(REQ_VIEW_LOG) ||
2692 view == VIEW(REQ_VIEW_STAGE))
2693 request = REQ_REFRESH;
2698 if (view && view->lines) {
2699 request = view->ops->request(view, request, &view->line[view->lineno]);
2700 if (request == REQ_NONE)
2707 case REQ_MOVE_PAGE_UP:
2708 case REQ_MOVE_PAGE_DOWN:
2709 case REQ_MOVE_FIRST_LINE:
2710 case REQ_MOVE_LAST_LINE:
2711 move_view(view, request);
2714 case REQ_SCROLL_LINE_DOWN:
2715 case REQ_SCROLL_LINE_UP:
2716 case REQ_SCROLL_PAGE_DOWN:
2717 case REQ_SCROLL_PAGE_UP:
2718 scroll_view(view, request);
2721 case REQ_VIEW_BLAME:
2723 report("No file chosen, press %s to open tree view",
2724 get_key(REQ_VIEW_TREE));
2727 open_view(view, request, OPEN_DEFAULT);
2732 report("No file chosen, press %s to open tree view",
2733 get_key(REQ_VIEW_TREE));
2736 open_view(view, request, OPEN_DEFAULT);
2739 case REQ_VIEW_PAGER:
2740 if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2741 report("No pager content, press %s to run command from prompt",
2742 get_key(REQ_PROMPT));
2745 open_view(view, request, OPEN_DEFAULT);
2748 case REQ_VIEW_STAGE:
2749 if (!VIEW(REQ_VIEW_STAGE)->lines) {
2750 report("No stage content, press %s to open the status view and choose file",
2751 get_key(REQ_VIEW_STATUS));
2754 open_view(view, request, OPEN_DEFAULT);
2757 case REQ_VIEW_STATUS:
2758 if (opt_is_inside_work_tree == FALSE) {
2759 report("The status view requires a working tree");
2762 open_view(view, request, OPEN_DEFAULT);
2770 open_view(view, request, OPEN_DEFAULT);
2775 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2777 if ((view == VIEW(REQ_VIEW_DIFF) &&
2778 view->parent == VIEW(REQ_VIEW_MAIN)) ||
2779 (view == VIEW(REQ_VIEW_DIFF) &&
2780 view->parent == VIEW(REQ_VIEW_BLAME)) ||
2781 (view == VIEW(REQ_VIEW_STAGE) &&
2782 view->parent == VIEW(REQ_VIEW_STATUS)) ||
2783 (view == VIEW(REQ_VIEW_BLOB) &&
2784 view->parent == VIEW(REQ_VIEW_TREE))) {
2787 view = view->parent;
2788 line = view->lineno;
2789 move_view(view, request);
2790 if (view_is_displayed(view))
2791 update_view_title(view);
2792 if (line != view->lineno)
2793 view->ops->request(view, REQ_ENTER,
2794 &view->line[view->lineno]);
2797 move_view(view, request);
2803 int nviews = displayed_views();
2804 int next_view = (current_view + 1) % nviews;
2806 if (next_view == current_view) {
2807 report("Only one view is displayed");
2811 current_view = next_view;
2812 /* Blur out the title of the previous view. */
2813 update_view_title(view);
2818 report("Refreshing is not yet supported for the %s view", view->name);
2822 if (displayed_views() == 2)
2823 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
2826 case REQ_TOGGLE_LINENO:
2827 opt_line_number = !opt_line_number;
2831 case REQ_TOGGLE_DATE:
2832 opt_date = !opt_date;
2836 case REQ_TOGGLE_AUTHOR:
2837 opt_author = !opt_author;
2841 case REQ_TOGGLE_REV_GRAPH:
2842 opt_rev_graph = !opt_rev_graph;
2846 case REQ_TOGGLE_REFS:
2847 opt_show_refs = !opt_show_refs;
2852 case REQ_SEARCH_BACK:
2853 search_view(view, request);
2858 find_next(view, request);
2861 case REQ_STOP_LOADING:
2862 for (i = 0; i < ARRAY_SIZE(views); i++) {
2865 report("Stopped loading the %s view", view->name),
2866 end_update(view, TRUE);
2870 case REQ_SHOW_VERSION:
2871 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
2874 case REQ_SCREEN_RESIZE:
2877 case REQ_SCREEN_REDRAW:
2882 report("Nothing to edit");
2886 report("Nothing to enter");
2889 case REQ_VIEW_CLOSE:
2890 /* XXX: Mark closed views by letting view->parent point to the
2891 * view itself. Parents to closed view should never be
2894 view->parent->parent != view->parent) {
2895 memset(display, 0, sizeof(display));
2897 display[current_view] = view->parent;
2898 view->parent = view;
2909 report("Unknown key, press 'h' for help");
2922 pager_draw(struct view *view, struct line *line, unsigned int lineno)
2924 char *text = line->data;
2926 if (opt_line_number && draw_lineno(view, lineno))
2929 draw_text(view, line->type, text, TRUE);
2934 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
2936 char refbuf[SIZEOF_STR];
2940 if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id))
2943 pipe = popen(refbuf, "r");
2947 if ((ref = fgets(refbuf, sizeof(refbuf), pipe)))
2948 ref = chomp_string(ref);
2954 /* This is the only fatal call, since it can "corrupt" the buffer. */
2955 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
2962 add_pager_refs(struct view *view, struct line *line)
2964 char buf[SIZEOF_STR];
2965 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
2967 size_t bufpos = 0, refpos = 0;
2968 const char *sep = "Refs: ";
2969 bool is_tag = FALSE;
2971 assert(line->type == LINE_COMMIT);
2973 refs = get_refs(commit_id);
2975 if (view == VIEW(REQ_VIEW_DIFF))
2976 goto try_add_describe_ref;
2981 struct ref *ref = refs[refpos];
2982 const char *fmt = ref->tag ? "%s[%s]" :
2983 ref->remote ? "%s<%s>" : "%s%s";
2985 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
2990 } while (refs[refpos++]->next);
2992 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
2993 try_add_describe_ref:
2994 /* Add <tag>-g<commit_id> "fake" reference. */
2995 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3002 if (!realloc_lines(view, view->line_size + 1))
3005 add_line_text(view, buf, LINE_PP_REFS);
3009 pager_read(struct view *view, char *data)
3016 line = add_line_text(view, data, get_line_type(data));
3020 if (line->type == LINE_COMMIT &&
3021 (view == VIEW(REQ_VIEW_DIFF) ||
3022 view == VIEW(REQ_VIEW_LOG)))
3023 add_pager_refs(view, line);
3029 pager_request(struct view *view, enum request request, struct line *line)
3033 if (request != REQ_ENTER)
3036 if (line->type == LINE_COMMIT &&
3037 (view == VIEW(REQ_VIEW_LOG) ||
3038 view == VIEW(REQ_VIEW_PAGER))) {
3039 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3043 /* Always scroll the view even if it was split. That way
3044 * you can use Enter to scroll through the log view and
3045 * split open each commit diff. */
3046 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3048 /* FIXME: A minor workaround. Scrolling the view will call report("")
3049 * but if we are scrolling a non-current view this won't properly
3050 * update the view title. */
3052 update_view_title(view);
3058 pager_grep(struct view *view, struct line *line)
3061 char *text = line->data;
3066 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3073 pager_select(struct view *view, struct line *line)
3075 if (line->type == LINE_COMMIT) {
3076 char *text = (char *)line->data + STRING_SIZE("commit ");
3078 if (view != VIEW(REQ_VIEW_PAGER))
3079 string_copy_rev(view->ref, text);
3080 string_copy_rev(ref_commit, text);
3084 static struct view_ops pager_ops = {
3095 log_request(struct view *view, enum request request, struct line *line)
3100 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3103 return pager_request(view, request, line);
3107 static struct view_ops log_ops = {
3123 help_open(struct view *view)
3126 int lines = ARRAY_SIZE(req_info) + 2;
3129 if (view->lines > 0)
3132 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3133 if (!req_info[i].request)
3136 lines += run_requests + 1;
3138 view->line = calloc(lines, sizeof(*view->line));
3142 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3144 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3147 if (req_info[i].request == REQ_NONE)
3150 if (!req_info[i].request) {
3151 add_line_text(view, "", LINE_DEFAULT);
3152 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3156 key = get_key(req_info[i].request);
3158 key = "(no key defined)";
3160 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
3163 add_line_text(view, buf, LINE_DEFAULT);
3167 add_line_text(view, "", LINE_DEFAULT);
3168 add_line_text(view, "External commands:", LINE_DEFAULT);
3171 for (i = 0; i < run_requests; i++) {
3172 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3178 key = get_key_name(req->key);
3180 key = "(no key defined)";
3182 if (!string_format(buf, " %-10s %-14s `%s`",
3183 keymap_table[req->keymap].name,
3187 add_line_text(view, buf, LINE_DEFAULT);
3193 static struct view_ops help_ops = {
3208 struct tree_stack_entry {
3209 struct tree_stack_entry *prev; /* Entry below this in the stack */
3210 unsigned long lineno; /* Line number to restore */
3211 char *name; /* Position of name in opt_path */
3214 /* The top of the path stack. */
3215 static struct tree_stack_entry *tree_stack = NULL;
3216 unsigned long tree_lineno = 0;
3219 pop_tree_stack_entry(void)
3221 struct tree_stack_entry *entry = tree_stack;
3223 tree_lineno = entry->lineno;
3225 tree_stack = entry->prev;
3230 push_tree_stack_entry(const char *name, unsigned long lineno)
3232 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3233 size_t pathlen = strlen(opt_path);
3238 entry->prev = tree_stack;
3239 entry->name = opt_path + pathlen;
3242 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3243 pop_tree_stack_entry();
3247 /* Move the current line to the first tree entry. */
3249 entry->lineno = lineno;
3252 /* Parse output from git-ls-tree(1):
3254 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3255 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3256 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3257 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3260 #define SIZEOF_TREE_ATTR \
3261 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3263 #define TREE_UP_FORMAT "040000 tree %s\t.."
3266 tree_compare_entry(enum line_type type1, const char *name1,
3267 enum line_type type2, const char *name2)
3269 if (type1 != type2) {
3270 if (type1 == LINE_TREE_DIR)
3275 return strcmp(name1, name2);
3279 tree_path(struct line *line)
3281 const char *path = line->data;
3283 return path + SIZEOF_TREE_ATTR;
3287 tree_read(struct view *view, char *text)
3289 size_t textlen = text ? strlen(text) : 0;
3290 char buf[SIZEOF_STR];
3292 enum line_type type;
3293 bool first_read = view->lines == 0;
3297 if (textlen <= SIZEOF_TREE_ATTR)
3300 type = text[STRING_SIZE("100644 ")] == 't'
3301 ? LINE_TREE_DIR : LINE_TREE_FILE;
3304 /* Add path info line */
3305 if (!string_format(buf, "Directory path /%s", opt_path) ||
3306 !realloc_lines(view, view->line_size + 1) ||
3307 !add_line_text(view, buf, LINE_DEFAULT))
3310 /* Insert "link" to parent directory. */
3312 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
3313 !realloc_lines(view, view->line_size + 1) ||
3314 !add_line_text(view, buf, LINE_TREE_DIR))
3319 /* Strip the path part ... */
3321 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3322 size_t striplen = strlen(opt_path);
3323 char *path = text + SIZEOF_TREE_ATTR;
3325 if (pathlen > striplen)
3326 memmove(path, path + striplen,
3327 pathlen - striplen + 1);
3330 /* Skip "Directory ..." and ".." line. */
3331 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
3332 struct line *line = &view->line[pos];
3333 const char *path1 = tree_path(line);
3334 char *path2 = text + SIZEOF_TREE_ATTR;
3335 int cmp = tree_compare_entry(line->type, path1, type, path2);
3340 text = strdup(text);
3344 if (view->lines > pos)
3345 memmove(&view->line[pos + 1], &view->line[pos],
3346 (view->lines - pos) * sizeof(*line));
3348 line = &view->line[pos];
3355 if (!add_line_text(view, text, type))
3358 if (tree_lineno > view->lineno) {
3359 view->lineno = tree_lineno;
3367 tree_request(struct view *view, enum request request, struct line *line)
3369 enum open_flags flags;
3372 case REQ_VIEW_BLAME:
3373 if (line->type != LINE_TREE_FILE) {
3374 report("Blame only supported for files");
3378 string_copy(opt_ref, view->vid);
3382 if (line->type != LINE_TREE_FILE) {
3383 report("Edit only supported for files");
3384 } else if (!is_head_commit(view->vid)) {
3385 report("Edit only supported for files in the current work tree");
3387 open_editor(TRUE, opt_file);
3391 case REQ_TREE_PARENT:
3393 /* quit view if at top of tree */
3394 return REQ_VIEW_CLOSE;
3397 line = &view->line[1];
3407 /* Cleanup the stack if the tree view is at a different tree. */
3408 while (!*opt_path && tree_stack)
3409 pop_tree_stack_entry();
3411 switch (line->type) {
3413 /* Depending on whether it is a subdir or parent (updir?) link
3414 * mangle the path buffer. */
3415 if (line == &view->line[1] && *opt_path) {
3416 pop_tree_stack_entry();
3419 const char *basename = tree_path(line);
3421 push_tree_stack_entry(basename, view->lineno);
3424 /* Trees and subtrees share the same ID, so they are not not
3425 * unique like blobs. */
3426 flags = OPEN_RELOAD;
3427 request = REQ_VIEW_TREE;
3430 case LINE_TREE_FILE:
3431 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3432 request = REQ_VIEW_BLOB;
3439 open_view(view, request, flags);
3440 if (request == REQ_VIEW_TREE) {
3441 view->lineno = tree_lineno;
3448 tree_select(struct view *view, struct line *line)
3450 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3452 if (line->type == LINE_TREE_FILE) {
3453 string_copy_rev(ref_blob, text);
3454 string_format(opt_file, "%s%s", opt_path, tree_path(line));
3456 } else if (line->type != LINE_TREE_DIR) {
3460 string_copy_rev(view->ref, text);
3463 static struct view_ops tree_ops = {
3474 blob_read(struct view *view, char *line)
3478 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3481 static struct view_ops blob_ops = {
3494 * Loading the blame view is a two phase job:
3496 * 1. File content is read either using opt_file from the
3497 * filesystem or using git-cat-file.
3498 * 2. Then blame information is incrementally added by
3499 * reading output from git-blame.
3502 struct blame_commit {
3503 char id[SIZEOF_REV]; /* SHA1 ID. */
3504 char title[128]; /* First line of the commit message. */
3505 char author[75]; /* Author of the commit. */
3506 struct tm time; /* Date from the author ident. */
3507 char filename[128]; /* Name of file. */
3511 struct blame_commit *commit;
3512 unsigned int header:1;
3516 #define BLAME_CAT_FILE_CMD "git cat-file blob %s:%s"
3517 #define BLAME_INCREMENTAL_CMD "git blame --incremental %s -- %s"
3520 blame_open(struct view *view)
3522 char path[SIZEOF_STR];
3523 char ref[SIZEOF_STR] = "";
3525 if (sq_quote(path, 0, opt_file) >= sizeof(path))
3528 if (*opt_ref && sq_quote(ref, 0, opt_ref) >= sizeof(ref))
3532 if (!string_format(view->cmd, BLAME_CAT_FILE_CMD, ref, path))
3535 view->pipe = fopen(opt_file, "r");
3537 !string_format(view->cmd, BLAME_CAT_FILE_CMD, "HEAD", path))
3542 view->pipe = popen(view->cmd, "r");
3546 if (!string_format(view->cmd, BLAME_INCREMENTAL_CMD, ref, path))
3550 string_format(view->ref, "%s ...", opt_file);
3551 string_copy_rev(view->vid, opt_file);
3552 set_nonblocking_input(TRUE);
3553 view->start_time = time(NULL);
3558 static struct blame_commit *
3559 get_blame_commit(struct view *view, const char *id)
3563 for (i = 0; i < view->lines; i++) {
3564 struct blame *blame = view->line[i].data;
3569 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3570 return blame->commit;
3574 struct blame_commit *commit = calloc(1, sizeof(*commit));
3577 string_ncopy(commit->id, id, SIZEOF_REV);
3583 parse_number(const char **posref, size_t *number, size_t min, size_t max)
3585 const char *pos = *posref;
3588 pos = strchr(pos + 1, ' ');
3589 if (!pos || !isdigit(pos[1]))
3591 *number = atoi(pos + 1);
3592 if (*number < min || *number > max)
3599 static struct blame_commit *
3600 parse_blame_commit(struct view *view, const char *text, int *blamed)
3602 struct blame_commit *commit;
3603 struct blame *blame;
3604 const char *pos = text + SIZEOF_REV - 1;
3608 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3611 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3612 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3615 commit = get_blame_commit(view, text);
3621 struct line *line = &view->line[lineno + group - 1];
3624 blame->commit = commit;
3625 blame->header = !group;
3633 blame_read_file(struct view *view, const char *line)
3638 if (view->lines > 0)
3639 pipe = popen(view->cmd, "r");
3640 else if (!view->parent)
3641 die("No blame exist for %s", view->vid);
3644 report("Failed to load blame data");
3653 size_t linelen = strlen(line);
3654 struct blame *blame = malloc(sizeof(*blame) + linelen);
3656 blame->commit = NULL;
3657 strncpy(blame->text, line, linelen);
3658 blame->text[linelen] = 0;
3659 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3664 match_blame_header(const char *name, char **line)
3666 size_t namelen = strlen(name);
3667 bool matched = !strncmp(name, *line, namelen);
3676 blame_read(struct view *view, char *line)
3678 static struct blame_commit *commit = NULL;
3679 static int blamed = 0;
3680 static time_t author_time;
3683 return blame_read_file(view, line);
3689 string_format(view->ref, "%s", view->vid);
3690 if (view_is_displayed(view)) {
3691 update_view_title(view);
3692 redraw_view_from(view, 0);
3698 commit = parse_blame_commit(view, line, &blamed);
3699 string_format(view->ref, "%s %2d%%", view->vid,
3700 blamed * 100 / view->lines);
3702 } else if (match_blame_header("author ", &line)) {
3703 string_ncopy(commit->author, line, strlen(line));
3705 } else if (match_blame_header("author-time ", &line)) {
3706 author_time = (time_t) atol(line);
3708 } else if (match_blame_header("author-tz ", &line)) {
3711 tz = ('0' - line[1]) * 60 * 60 * 10;
3712 tz += ('0' - line[2]) * 60 * 60;
3713 tz += ('0' - line[3]) * 60;
3714 tz += ('0' - line[4]) * 60;
3720 gmtime_r(&author_time, &commit->time);
3722 } else if (match_blame_header("summary ", &line)) {
3723 string_ncopy(commit->title, line, strlen(line));
3725 } else if (match_blame_header("filename ", &line)) {
3726 string_ncopy(commit->filename, line, strlen(line));
3734 blame_draw(struct view *view, struct line *line, unsigned int lineno)
3736 struct blame *blame = line->data;
3737 struct tm *time = NULL;
3738 const char *id = NULL, *author = NULL;
3740 if (blame->commit && *blame->commit->filename) {
3741 id = blame->commit->id;
3742 author = blame->commit->author;
3743 time = &blame->commit->time;
3746 if (opt_date && draw_date(view, time))
3750 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
3753 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
3756 if (draw_lineno(view, lineno))
3759 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
3764 blame_request(struct view *view, enum request request, struct line *line)
3766 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3767 struct blame *blame = line->data;
3771 if (!blame->commit) {
3772 report("No commit loaded yet");
3776 if (!strcmp(blame->commit->id, NULL_ID)) {
3777 char path[SIZEOF_STR];
3779 if (sq_quote(path, 0, view->vid) >= sizeof(path))
3781 string_format(opt_cmd, "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s 2>/dev/null", path);
3784 open_view(view, REQ_VIEW_DIFF, flags);
3795 blame_grep(struct view *view, struct line *line)
3797 struct blame *blame = line->data;
3798 struct blame_commit *commit = blame->commit;
3801 #define MATCH(text, on) \
3802 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3805 char buf[DATE_COLS + 1];
3807 if (MATCH(commit->title, 1) ||
3808 MATCH(commit->author, opt_author) ||
3809 MATCH(commit->id, opt_date))
3812 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
3817 return MATCH(blame->text, 1);
3823 blame_select(struct view *view, struct line *line)
3825 struct blame *blame = line->data;
3826 struct blame_commit *commit = blame->commit;
3831 if (!strcmp(commit->id, NULL_ID))
3832 string_ncopy(ref_commit, "HEAD", 4);
3834 string_copy_rev(ref_commit, commit->id);
3837 static struct view_ops blame_ops = {
3855 char rev[SIZEOF_REV];
3856 char name[SIZEOF_STR];
3860 char rev[SIZEOF_REV];
3861 char name[SIZEOF_STR];
3865 static char status_onbranch[SIZEOF_STR];
3866 static struct status stage_status;
3867 static enum line_type stage_line_type;
3868 static size_t stage_chunks;
3869 static int *stage_chunk;
3871 /* This should work even for the "On branch" line. */
3873 status_has_none(struct view *view, struct line *line)
3875 return line < view->line + view->lines && !line[1].data;
3878 /* Get fields from the diff line:
3879 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3882 status_get_diff(struct status *file, const char *buf, size_t bufsize)
3884 const char *old_mode = buf + 1;
3885 const char *new_mode = buf + 8;
3886 const char *old_rev = buf + 15;
3887 const char *new_rev = buf + 56;
3888 const char *status = buf + 97;
3891 old_mode[-1] != ':' ||
3892 new_mode[-1] != ' ' ||
3893 old_rev[-1] != ' ' ||
3894 new_rev[-1] != ' ' ||
3898 file->status = *status;
3900 string_copy_rev(file->old.rev, old_rev);
3901 string_copy_rev(file->new.rev, new_rev);
3903 file->old.mode = strtoul(old_mode, NULL, 8);
3904 file->new.mode = strtoul(new_mode, NULL, 8);
3906 file->old.name[0] = file->new.name[0] = 0;
3912 status_run(struct view *view, const char cmd[], char status, enum line_type type)
3914 struct status *file = NULL;
3915 struct status *unmerged = NULL;
3916 char buf[SIZEOF_STR * 4];
3920 pipe = popen(cmd, "r");
3924 add_line_data(view, NULL, type);
3926 while (!feof(pipe) && !ferror(pipe)) {
3930 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3933 bufsize += readsize;
3935 /* Process while we have NUL chars. */
3936 while ((sep = memchr(buf, 0, bufsize))) {
3937 size_t sepsize = sep - buf + 1;
3940 if (!realloc_lines(view, view->line_size + 1))
3943 file = calloc(1, sizeof(*file));
3947 add_line_data(view, file, type);
3950 /* Parse diff info part. */
3952 file->status = status;
3954 string_copy(file->old.rev, NULL_ID);
3956 } else if (!file->status) {
3957 if (!status_get_diff(file, buf, sepsize))
3961 memmove(buf, sep + 1, bufsize);
3963 sep = memchr(buf, 0, bufsize);
3966 sepsize = sep - buf + 1;
3968 /* Collapse all 'M'odified entries that
3969 * follow a associated 'U'nmerged entry.
3971 if (file->status == 'U') {
3974 } else if (unmerged) {
3975 int collapse = !strcmp(buf, unmerged->new.name);
3986 /* Grab the old name for rename/copy. */
3987 if (!*file->old.name &&
3988 (file->status == 'R' || file->status == 'C')) {
3989 sepsize = sep - buf + 1;
3990 string_ncopy(file->old.name, buf, sepsize);
3992 memmove(buf, sep + 1, bufsize);
3994 sep = memchr(buf, 0, bufsize);
3997 sepsize = sep - buf + 1;
4000 /* git-ls-files just delivers a NUL separated
4001 * list of file names similar to the second half
4002 * of the git-diff-* output. */
4003 string_ncopy(file->new.name, buf, sepsize);
4004 if (!*file->old.name)
4005 string_copy(file->old.name, file->new.name);
4007 memmove(buf, sep + 1, bufsize);
4018 if (!view->line[view->lines - 1].data)
4019 add_line_data(view, NULL, LINE_STAT_NONE);
4025 /* Don't show unmerged entries in the staged section. */
4026 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD"
4027 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
4028 #define STATUS_LIST_OTHER_CMD \
4029 "git ls-files -z --others --exclude-standard"
4030 #define STATUS_LIST_NO_HEAD_CMD \
4031 "git ls-files -z --cached --exclude-standard"
4033 #define STATUS_DIFF_INDEX_SHOW_CMD \
4034 "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null"
4036 #define STATUS_DIFF_FILES_SHOW_CMD \
4037 "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null"
4039 #define STATUS_DIFF_NO_HEAD_SHOW_CMD \
4040 "git diff --no-color --patch-with-stat /dev/null %s 2>/dev/null"
4042 /* First parse staged info using git-diff-index(1), then parse unstaged
4043 * info using git-diff-files(1), and finally untracked files using
4044 * git-ls-files(1). */
4046 status_open(struct view *view)
4048 unsigned long prev_lineno = view->lineno;
4052 if (!realloc_lines(view, view->line_size + 7))
4055 add_line_data(view, NULL, LINE_STAT_HEAD);
4056 if (is_initial_commit())
4057 string_copy(status_onbranch, "Initial commit");
4058 else if (!*opt_head)
4059 string_copy(status_onbranch, "Not currently on any branch");
4060 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4063 system("git update-index -q --refresh >/dev/null 2>/dev/null");
4065 if (is_initial_commit()) {
4066 if (!status_run(view, STATUS_LIST_NO_HEAD_CMD, 'A', LINE_STAT_STAGED))
4068 } else if (!status_run(view, STATUS_DIFF_INDEX_CMD, 0, LINE_STAT_STAGED)) {
4072 if (!status_run(view, STATUS_DIFF_FILES_CMD, 0, LINE_STAT_UNSTAGED) ||
4073 !status_run(view, STATUS_LIST_OTHER_CMD, '?', LINE_STAT_UNTRACKED))
4076 /* If all went well restore the previous line number to stay in
4077 * the context or select a line with something that can be
4079 if (prev_lineno >= view->lines)
4080 prev_lineno = view->lines - 1;
4081 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4083 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4086 /* If the above fails, always skip the "On branch" line. */
4087 if (prev_lineno < view->lines)
4088 view->lineno = prev_lineno;
4092 if (view->lineno < view->offset)
4093 view->offset = view->lineno;
4094 else if (view->offset + view->height <= view->lineno)
4095 view->offset = view->lineno - view->height + 1;
4101 status_draw(struct view *view, struct line *line, unsigned int lineno)
4103 struct status *status = line->data;
4104 enum line_type type;
4108 switch (line->type) {
4109 case LINE_STAT_STAGED:
4110 type = LINE_STAT_SECTION;
4111 text = "Changes to be committed:";
4114 case LINE_STAT_UNSTAGED:
4115 type = LINE_STAT_SECTION;
4116 text = "Changed but not updated:";
4119 case LINE_STAT_UNTRACKED:
4120 type = LINE_STAT_SECTION;
4121 text = "Untracked files:";
4124 case LINE_STAT_NONE:
4125 type = LINE_DEFAULT;
4126 text = " (no files)";
4129 case LINE_STAT_HEAD:
4130 type = LINE_STAT_HEAD;
4131 text = status_onbranch;
4138 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4140 buf[0] = status->status;
4141 if (draw_text(view, line->type, buf, TRUE))
4143 type = LINE_DEFAULT;
4144 text = status->new.name;
4147 draw_text(view, type, text, TRUE);
4152 status_enter(struct view *view, struct line *line)
4154 struct status *status = line->data;
4155 char oldpath[SIZEOF_STR] = "";
4156 char newpath[SIZEOF_STR] = "";
4159 enum open_flags split;
4161 if (line->type == LINE_STAT_NONE ||
4162 (!status && line[1].type == LINE_STAT_NONE)) {
4163 report("No file to diff");
4168 if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath))
4170 /* Diffs for unmerged entries are empty when pasing the
4171 * new path, so leave it empty. */
4172 if (status->status != 'U' &&
4173 sq_quote(newpath, 0, status->new.name) >= sizeof(newpath))
4178 line->type != LINE_STAT_UNTRACKED &&
4179 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
4182 switch (line->type) {
4183 case LINE_STAT_STAGED:
4184 if (is_initial_commit()) {
4185 if (!string_format_from(opt_cmd, &cmdsize,
4186 STATUS_DIFF_NO_HEAD_SHOW_CMD,
4190 if (!string_format_from(opt_cmd, &cmdsize,
4191 STATUS_DIFF_INDEX_SHOW_CMD,
4197 info = "Staged changes to %s";
4199 info = "Staged changes";
4202 case LINE_STAT_UNSTAGED:
4203 if (!string_format_from(opt_cmd, &cmdsize,
4204 STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath))
4207 info = "Unstaged changes to %s";
4209 info = "Unstaged changes";
4212 case LINE_STAT_UNTRACKED:
4217 report("No file to show");
4221 if (!suffixcmp(status->new.name, -1, "/")) {
4222 report("Cannot display a directory");
4226 opt_pipe = fopen(status->new.name, "r");
4227 info = "Untracked file %s";
4230 case LINE_STAT_HEAD:
4234 die("line type %d not handled in switch", line->type);
4237 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4238 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | split);
4239 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4241 stage_status = *status;
4243 memset(&stage_status, 0, sizeof(stage_status));
4246 stage_line_type = line->type;
4248 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4255 status_exists(struct status *status, enum line_type type)
4257 struct view *view = VIEW(REQ_VIEW_STATUS);
4260 for (line = view->line; line < view->line + view->lines; line++) {
4261 struct status *pos = line->data;
4263 if (line->type == type && pos &&
4264 !strcmp(status->new.name, pos->new.name))
4273 status_update_prepare(enum line_type type)
4275 char cmd[SIZEOF_STR];
4279 type != LINE_STAT_UNTRACKED &&
4280 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4284 case LINE_STAT_STAGED:
4285 string_add(cmd, cmdsize, "git update-index -z --index-info");
4288 case LINE_STAT_UNSTAGED:
4289 case LINE_STAT_UNTRACKED:
4290 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
4294 die("line type %d not handled in switch", type);
4297 return popen(cmd, "w");
4301 status_update_write(FILE *pipe, struct status *status, enum line_type type)
4303 char buf[SIZEOF_STR];
4308 case LINE_STAT_STAGED:
4309 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4312 status->old.name, 0))
4316 case LINE_STAT_UNSTAGED:
4317 case LINE_STAT_UNTRACKED:
4318 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4323 die("line type %d not handled in switch", type);
4326 while (!ferror(pipe) && written < bufsize) {
4327 written += fwrite(buf + written, 1, bufsize - written, pipe);
4330 return written == bufsize;
4334 status_update_file(struct status *status, enum line_type type)
4336 FILE *pipe = status_update_prepare(type);
4342 result = status_update_write(pipe, status, type);
4348 status_update_files(struct view *view, struct line *line)
4350 FILE *pipe = status_update_prepare(line->type);
4352 struct line *pos = view->line + view->lines;
4359 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4362 for (file = 0, done = 0; result && file < files; line++, file++) {
4363 int almost_done = file * 100 / files;
4365 if (almost_done > done) {
4367 string_format(view->ref, "updating file %u of %u (%d%% done)",
4369 update_view_title(view);
4371 result = status_update_write(pipe, line->data, line->type);
4379 status_update(struct view *view)
4381 struct line *line = &view->line[view->lineno];
4383 assert(view->lines);
4386 /* This should work even for the "On branch" line. */
4387 if (line < view->line + view->lines && !line[1].data) {
4388 report("Nothing to update");
4392 if (!status_update_files(view, line + 1)) {
4393 report("Failed to update file status");
4397 } else if (!status_update_file(line->data, line->type)) {
4398 report("Failed to update file status");
4406 status_revert(struct status *status, enum line_type type, bool has_none)
4408 if (!status || type != LINE_STAT_UNSTAGED) {
4409 if (type == LINE_STAT_STAGED) {
4410 report("Cannot revert changes to staged files");
4411 } else if (type == LINE_STAT_UNTRACKED) {
4412 report("Cannot revert changes to untracked files");
4413 } else if (has_none) {
4414 report("Nothing to revert");
4416 report("Cannot revert changes to multiple files");
4421 char cmd[SIZEOF_STR];
4422 char file_sq[SIZEOF_STR];
4424 if (sq_quote(file_sq, 0, status->old.name) >= sizeof(file_sq) ||
4425 !string_format(cmd, "git checkout -- %s%s", opt_cdup, file_sq))
4428 return run_confirm(cmd, "Are you sure you want to overwrite any changes?");
4433 status_request(struct view *view, enum request request, struct line *line)
4435 struct status *status = line->data;
4438 case REQ_STATUS_UPDATE:
4439 if (!status_update(view))
4443 case REQ_STATUS_REVERT:
4444 if (!status_revert(status, line->type, status_has_none(view, line)))
4448 case REQ_STATUS_MERGE:
4449 if (!status || status->status != 'U') {
4450 report("Merging only possible for files with unmerged status ('U').");
4453 open_mergetool(status->new.name);
4459 if (status->status == 'D') {
4460 report("File has been deleted.");
4464 open_editor(status->status != '?', status->new.name);
4467 case REQ_VIEW_BLAME:
4469 string_copy(opt_file, status->new.name);
4475 /* After returning the status view has been split to
4476 * show the stage view. No further reloading is
4478 status_enter(view, line);
4482 /* Simply reload the view. */
4489 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4495 status_select(struct view *view, struct line *line)
4497 struct status *status = line->data;
4498 char file[SIZEOF_STR] = "all files";
4502 if (status && !string_format(file, "'%s'", status->new.name))
4505 if (!status && line[1].type == LINE_STAT_NONE)
4508 switch (line->type) {
4509 case LINE_STAT_STAGED:
4510 text = "Press %s to unstage %s for commit";
4513 case LINE_STAT_UNSTAGED:
4514 text = "Press %s to stage %s for commit";
4517 case LINE_STAT_UNTRACKED:
4518 text = "Press %s to stage %s for addition";
4521 case LINE_STAT_HEAD:
4522 case LINE_STAT_NONE:
4523 text = "Nothing to update";
4527 die("line type %d not handled in switch", line->type);
4530 if (status && status->status == 'U') {
4531 text = "Press %s to resolve conflict in %s";
4532 key = get_key(REQ_STATUS_MERGE);
4535 key = get_key(REQ_STATUS_UPDATE);
4538 string_format(view->ref, text, key, file);
4542 status_grep(struct view *view, struct line *line)
4544 struct status *status = line->data;
4545 enum { S_STATUS, S_NAME, S_END } state;
4552 for (state = S_STATUS; state < S_END; state++) {
4556 case S_NAME: text = status->new.name; break;
4558 buf[0] = status->status;
4566 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4573 static struct view_ops status_ops = {
4585 stage_diff_line(FILE *pipe, struct line *line)
4587 const char *buf = line->data;
4588 size_t bufsize = strlen(buf);
4591 while (!ferror(pipe) && written < bufsize) {
4592 written += fwrite(buf + written, 1, bufsize - written, pipe);
4597 return written == bufsize;
4601 stage_diff_write(FILE *pipe, struct line *line, struct line *end)
4603 while (line < end) {
4604 if (!stage_diff_line(pipe, line++))
4606 if (line->type == LINE_DIFF_CHUNK ||
4607 line->type == LINE_DIFF_HEADER)
4614 static struct line *
4615 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4617 for (; view->line < line; line--)
4618 if (line->type == type)
4625 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
4627 char cmd[SIZEOF_STR];
4629 struct line *diff_hdr;
4632 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4637 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4640 if (!string_format_from(cmd, &cmdsize,
4641 "git apply --whitespace=nowarn %s %s - && "
4642 "git update-index -q --unmerged --refresh 2>/dev/null",
4643 revert ? "" : "--cached",
4644 revert || stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
4647 pipe = popen(cmd, "w");
4651 if (!stage_diff_write(pipe, diff_hdr, chunk) ||
4652 !stage_diff_write(pipe, chunk, view->line + view->lines))
4657 return chunk ? TRUE : FALSE;
4661 stage_update(struct view *view, struct line *line)
4663 struct line *chunk = NULL;
4665 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
4666 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4669 if (!stage_apply_chunk(view, chunk, FALSE)) {
4670 report("Failed to apply chunk");
4674 } else if (!stage_status.status) {
4675 view = VIEW(REQ_VIEW_STATUS);
4677 for (line = view->line; line < view->line + view->lines; line++)
4678 if (line->type == stage_line_type)
4681 if (!status_update_files(view, line + 1)) {
4682 report("Failed to update files");
4686 } else if (!status_update_file(&stage_status, stage_line_type)) {
4687 report("Failed to update file");
4695 stage_revert(struct view *view, struct line *line)
4697 struct line *chunk = NULL;
4699 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
4700 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4703 if (!prompt_yesno("Are you sure you want to revert changes?"))
4706 if (!stage_apply_chunk(view, chunk, TRUE)) {
4707 report("Failed to revert chunk");
4713 return status_revert(stage_status.status ? &stage_status : NULL,
4714 stage_line_type, FALSE);
4720 stage_next(struct view *view, struct line *line)
4724 if (!stage_chunks) {
4725 static size_t alloc = 0;
4728 for (line = view->line; line < view->line + view->lines; line++) {
4729 if (line->type != LINE_DIFF_CHUNK)
4732 tmp = realloc_items(stage_chunk, &alloc,
4733 stage_chunks, sizeof(*tmp));
4735 report("Allocation failure");
4740 stage_chunk[stage_chunks++] = line - view->line;
4744 for (i = 0; i < stage_chunks; i++) {
4745 if (stage_chunk[i] > view->lineno) {
4746 do_scroll_view(view, stage_chunk[i] - view->lineno);
4747 report("Chunk %d of %d", i + 1, stage_chunks);
4752 report("No next chunk found");
4756 stage_request(struct view *view, enum request request, struct line *line)
4759 case REQ_STATUS_UPDATE:
4760 if (!stage_update(view, line))
4764 case REQ_STATUS_REVERT:
4765 if (!stage_revert(view, line))
4769 case REQ_STAGE_NEXT:
4770 if (stage_line_type == LINE_STAT_UNTRACKED) {
4771 report("File is untracked; press %s to add",
4772 get_key(REQ_STATUS_UPDATE));
4775 stage_next(view, line);
4779 if (!stage_status.new.name[0])
4781 if (stage_status.status == 'D') {
4782 report("File has been deleted.");
4786 open_editor(stage_status.status != '?', stage_status.new.name);
4790 /* Reload everything ... */
4793 case REQ_VIEW_BLAME:
4794 if (stage_status.new.name[0]) {
4795 string_copy(opt_file, stage_status.new.name);
4801 return pager_request(view, request, line);
4807 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4809 /* Check whether the staged entry still exists, and close the
4810 * stage view if it doesn't. */
4811 if (!status_exists(&stage_status, stage_line_type))
4812 return REQ_VIEW_CLOSE;
4814 if (stage_line_type == LINE_STAT_UNTRACKED) {
4815 if (!suffixcmp(stage_status.new.name, -1, "/")) {
4816 report("Cannot display a directory");
4820 opt_pipe = fopen(stage_status.new.name, "r");
4822 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
4827 static struct view_ops stage_ops = {
4843 char id[SIZEOF_REV]; /* SHA1 ID. */
4844 char title[128]; /* First line of the commit message. */
4845 char author[75]; /* Author of the commit. */
4846 struct tm time; /* Date from the author ident. */
4847 struct ref **refs; /* Repository references. */
4848 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
4849 size_t graph_size; /* The width of the graph array. */
4850 bool has_parents; /* Rewritten --parents seen. */
4853 /* Size of rev graph with no "padding" columns */
4854 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
4857 struct rev_graph *prev, *next, *parents;
4858 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
4860 struct commit *commit;
4862 unsigned int boundary:1;
4865 /* Parents of the commit being visualized. */
4866 static struct rev_graph graph_parents[4];
4868 /* The current stack of revisions on the graph. */
4869 static struct rev_graph graph_stacks[4] = {
4870 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
4871 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
4872 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
4873 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
4877 graph_parent_is_merge(struct rev_graph *graph)
4879 return graph->parents->size > 1;
4883 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
4885 struct commit *commit = graph->commit;
4887 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
4888 commit->graph[commit->graph_size++] = symbol;
4892 clear_rev_graph(struct rev_graph *graph)
4894 graph->boundary = 0;
4895 graph->size = graph->pos = 0;
4896 graph->commit = NULL;
4897 memset(graph->parents, 0, sizeof(*graph->parents));
4901 done_rev_graph(struct rev_graph *graph)
4903 if (graph_parent_is_merge(graph) &&
4904 graph->pos < graph->size - 1 &&
4905 graph->next->size == graph->size + graph->parents->size - 1) {
4906 size_t i = graph->pos + graph->parents->size - 1;
4908 graph->commit->graph_size = i * 2;
4909 while (i < graph->next->size - 1) {
4910 append_to_rev_graph(graph, ' ');
4911 append_to_rev_graph(graph, '\\');
4916 clear_rev_graph(graph);
4920 push_rev_graph(struct rev_graph *graph, const char *parent)
4924 /* "Collapse" duplicate parents lines.
4926 * FIXME: This needs to also update update the drawn graph but
4927 * for now it just serves as a method for pruning graph lines. */
4928 for (i = 0; i < graph->size; i++)
4929 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
4932 if (graph->size < SIZEOF_REVITEMS) {
4933 string_copy_rev(graph->rev[graph->size++], parent);
4938 get_rev_graph_symbol(struct rev_graph *graph)
4942 if (graph->boundary)
4943 symbol = REVGRAPH_BOUND;
4944 else if (graph->parents->size == 0)
4945 symbol = REVGRAPH_INIT;
4946 else if (graph_parent_is_merge(graph))
4947 symbol = REVGRAPH_MERGE;
4948 else if (graph->pos >= graph->size)
4949 symbol = REVGRAPH_BRANCH;
4951 symbol = REVGRAPH_COMMIT;
4957 draw_rev_graph(struct rev_graph *graph)
4960 chtype separator, line;
4962 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
4963 static struct rev_filler fillers[] = {
4969 chtype symbol = get_rev_graph_symbol(graph);
4970 struct rev_filler *filler;
4973 if (opt_line_graphics)
4974 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
4976 filler = &fillers[DEFAULT];
4978 for (i = 0; i < graph->pos; i++) {
4979 append_to_rev_graph(graph, filler->line);
4980 if (graph_parent_is_merge(graph->prev) &&
4981 graph->prev->pos == i)
4982 filler = &fillers[RSHARP];
4984 append_to_rev_graph(graph, filler->separator);
4987 /* Place the symbol for this revision. */
4988 append_to_rev_graph(graph, symbol);
4990 if (graph->prev->size > graph->size)
4991 filler = &fillers[RDIAG];
4993 filler = &fillers[DEFAULT];
4997 for (; i < graph->size; i++) {
4998 append_to_rev_graph(graph, filler->separator);
4999 append_to_rev_graph(graph, filler->line);
5000 if (graph_parent_is_merge(graph->prev) &&
5001 i < graph->prev->pos + graph->parents->size)
5002 filler = &fillers[RSHARP];
5003 if (graph->prev->size > graph->size)
5004 filler = &fillers[LDIAG];
5007 if (graph->prev->size > graph->size) {
5008 append_to_rev_graph(graph, filler->separator);
5009 if (filler->line != ' ')
5010 append_to_rev_graph(graph, filler->line);
5014 /* Prepare the next rev graph */
5016 prepare_rev_graph(struct rev_graph *graph)
5020 /* First, traverse all lines of revisions up to the active one. */
5021 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5022 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5025 push_rev_graph(graph->next, graph->rev[graph->pos]);
5028 /* Interleave the new revision parent(s). */
5029 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5030 push_rev_graph(graph->next, graph->parents->rev[i]);
5032 /* Lastly, put any remaining revisions. */
5033 for (i = graph->pos + 1; i < graph->size; i++)
5034 push_rev_graph(graph->next, graph->rev[i]);
5038 update_rev_graph(struct rev_graph *graph)
5040 /* If this is the finalizing update ... */
5042 prepare_rev_graph(graph);
5044 /* Graph visualization needs a one rev look-ahead,
5045 * so the first update doesn't visualize anything. */
5046 if (!graph->prev->commit)
5049 draw_rev_graph(graph->prev);
5050 done_rev_graph(graph->prev->prev);
5059 main_draw(struct view *view, struct line *line, unsigned int lineno)
5061 struct commit *commit = line->data;
5063 if (!*commit->author)
5066 if (opt_date && draw_date(view, &commit->time))
5070 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5073 if (opt_rev_graph && commit->graph_size &&
5074 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5077 if (opt_show_refs && commit->refs) {
5081 enum line_type type;
5083 if (commit->refs[i]->head)
5084 type = LINE_MAIN_HEAD;
5085 else if (commit->refs[i]->ltag)
5086 type = LINE_MAIN_LOCAL_TAG;
5087 else if (commit->refs[i]->tag)
5088 type = LINE_MAIN_TAG;
5089 else if (commit->refs[i]->tracked)
5090 type = LINE_MAIN_TRACKED;
5091 else if (commit->refs[i]->remote)
5092 type = LINE_MAIN_REMOTE;
5094 type = LINE_MAIN_REF;
5096 if (draw_text(view, type, "[", TRUE) ||
5097 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5098 draw_text(view, type, "]", TRUE))
5101 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5103 } while (commit->refs[i++]->next);
5106 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5110 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5112 main_read(struct view *view, char *line)
5114 static struct rev_graph *graph = graph_stacks;
5115 enum line_type type;
5116 struct commit *commit;
5121 if (!view->lines && !view->parent)
5122 die("No revisions match the given arguments.");
5123 if (view->lines > 0) {
5124 commit = view->line[view->lines - 1].data;
5125 if (!*commit->author) {
5128 graph->commit = NULL;
5131 update_rev_graph(graph);
5133 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5134 clear_rev_graph(&graph_stacks[i]);
5138 type = get_line_type(line);
5139 if (type == LINE_COMMIT) {
5140 commit = calloc(1, sizeof(struct commit));
5144 line += STRING_SIZE("commit ");
5146 graph->boundary = 1;
5150 string_copy_rev(commit->id, line);
5151 commit->refs = get_refs(commit->id);
5152 graph->commit = commit;
5153 add_line_data(view, commit, LINE_MAIN_COMMIT);
5155 while ((line = strchr(line, ' '))) {
5157 push_rev_graph(graph->parents, line);
5158 commit->has_parents = TRUE;
5165 commit = view->line[view->lines - 1].data;
5169 if (commit->has_parents)
5171 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5176 /* Parse author lines where the name may be empty:
5177 * author <email@address.tld> 1138474660 +0100
5179 char *ident = line + STRING_SIZE("author ");
5180 char *nameend = strchr(ident, '<');
5181 char *emailend = strchr(ident, '>');
5183 if (!nameend || !emailend)
5186 update_rev_graph(graph);
5187 graph = graph->next;
5189 *nameend = *emailend = 0;
5190 ident = chomp_string(ident);
5192 ident = chomp_string(nameend + 1);
5197 string_ncopy(commit->author, ident, strlen(ident));
5199 /* Parse epoch and timezone */
5200 if (emailend[1] == ' ') {
5201 char *secs = emailend + 2;
5202 char *zone = strchr(secs, ' ');
5203 time_t time = (time_t) atol(secs);
5205 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5209 tz = ('0' - zone[1]) * 60 * 60 * 10;
5210 tz += ('0' - zone[2]) * 60 * 60;
5211 tz += ('0' - zone[3]) * 60;
5212 tz += ('0' - zone[4]) * 60;
5220 gmtime_r(&time, &commit->time);
5225 /* Fill in the commit title if it has not already been set. */
5226 if (commit->title[0])
5229 /* Require titles to start with a non-space character at the
5230 * offset used by git log. */
5231 if (strncmp(line, " ", 4))
5234 /* Well, if the title starts with a whitespace character,
5235 * try to be forgiving. Otherwise we end up with no title. */
5236 while (isspace(*line))
5240 /* FIXME: More graceful handling of titles; append "..." to
5241 * shortened titles, etc. */
5243 string_ncopy(commit->title, line, strlen(line));
5250 main_request(struct view *view, enum request request, struct line *line)
5252 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5256 open_view(view, REQ_VIEW_DIFF, flags);
5260 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5270 grep_refs(struct ref **refs, regex_t *regex)
5278 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5280 } while (refs[i++]->next);
5286 main_grep(struct view *view, struct line *line)
5288 struct commit *commit = line->data;
5289 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5290 char buf[DATE_COLS + 1];
5293 for (state = S_TITLE; state < S_END; state++) {
5297 case S_TITLE: text = commit->title; break;
5301 text = commit->author;
5306 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5313 if (grep_refs(commit->refs, view->regex) == TRUE)
5320 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5328 main_select(struct view *view, struct line *line)
5330 struct commit *commit = line->data;
5332 string_copy_rev(view->ref, commit->id);
5333 string_copy_rev(ref_commit, view->ref);
5336 static struct view_ops main_ops = {
5348 * Unicode / UTF-8 handling
5350 * NOTE: Much of the following code for dealing with unicode is derived from
5351 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5352 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5355 /* I've (over)annotated a lot of code snippets because I am not entirely
5356 * confident that the approach taken by this small UTF-8 interface is correct.
5360 unicode_width(unsigned long c)
5363 (c <= 0x115f /* Hangul Jamo */
5366 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5368 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5369 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5370 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5371 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5372 || (c >= 0xffe0 && c <= 0xffe6)
5373 || (c >= 0x20000 && c <= 0x2fffd)
5374 || (c >= 0x30000 && c <= 0x3fffd)))
5378 return opt_tab_size;
5383 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5384 * Illegal bytes are set one. */
5385 static const unsigned char utf8_bytes[256] = {
5386 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,
5387 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,
5388 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,
5389 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,
5390 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,
5391 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,
5392 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,
5393 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,
5396 /* Decode UTF-8 multi-byte representation into a unicode character. */
5397 static inline unsigned long
5398 utf8_to_unicode(const char *string, size_t length)
5400 unsigned long unicode;
5404 unicode = string[0];
5407 unicode = (string[0] & 0x1f) << 6;
5408 unicode += (string[1] & 0x3f);
5411 unicode = (string[0] & 0x0f) << 12;
5412 unicode += ((string[1] & 0x3f) << 6);
5413 unicode += (string[2] & 0x3f);
5416 unicode = (string[0] & 0x0f) << 18;
5417 unicode += ((string[1] & 0x3f) << 12);
5418 unicode += ((string[2] & 0x3f) << 6);
5419 unicode += (string[3] & 0x3f);
5422 unicode = (string[0] & 0x0f) << 24;
5423 unicode += ((string[1] & 0x3f) << 18);
5424 unicode += ((string[2] & 0x3f) << 12);
5425 unicode += ((string[3] & 0x3f) << 6);
5426 unicode += (string[4] & 0x3f);
5429 unicode = (string[0] & 0x01) << 30;
5430 unicode += ((string[1] & 0x3f) << 24);
5431 unicode += ((string[2] & 0x3f) << 18);
5432 unicode += ((string[3] & 0x3f) << 12);
5433 unicode += ((string[4] & 0x3f) << 6);
5434 unicode += (string[5] & 0x3f);
5437 die("Invalid unicode length");
5440 /* Invalid characters could return the special 0xfffd value but NUL
5441 * should be just as good. */
5442 return unicode > 0xffff ? 0 : unicode;
5445 /* Calculates how much of string can be shown within the given maximum width
5446 * and sets trimmed parameter to non-zero value if all of string could not be
5447 * shown. If the reserve flag is TRUE, it will reserve at least one
5448 * trailing character, which can be useful when drawing a delimiter.
5450 * Returns the number of bytes to output from string to satisfy max_width. */
5452 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5454 const char *start = string;
5455 const char *end = strchr(string, '\0');
5456 unsigned char last_bytes = 0;
5457 size_t last_ucwidth = 0;
5462 while (string < end) {
5463 int c = *(unsigned char *) string;
5464 unsigned char bytes = utf8_bytes[c];
5466 unsigned long unicode;
5468 if (string + bytes > end)
5471 /* Change representation to figure out whether
5472 * it is a single- or double-width character. */
5474 unicode = utf8_to_unicode(string, bytes);
5475 /* FIXME: Graceful handling of invalid unicode character. */
5479 ucwidth = unicode_width(unicode);
5481 if (*width > max_width) {
5484 if (reserve && *width == max_width) {
5485 string -= last_bytes;
5486 *width -= last_ucwidth;
5493 last_ucwidth = ucwidth;
5496 return string - start;
5504 /* Whether or not the curses interface has been initialized. */
5505 static bool cursed = FALSE;
5507 /* The status window is used for polling keystrokes. */
5508 static WINDOW *status_win;
5510 static bool status_empty = TRUE;
5512 /* Update status and title window. */
5514 report(const char *msg, ...)
5516 struct view *view = display[current_view];
5522 char buf[SIZEOF_STR];
5525 va_start(args, msg);
5526 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5527 buf[sizeof(buf) - 1] = 0;
5528 buf[sizeof(buf) - 2] = '.';
5529 buf[sizeof(buf) - 3] = '.';
5530 buf[sizeof(buf) - 4] = '.';
5536 if (!status_empty || *msg) {
5539 va_start(args, msg);
5541 wmove(status_win, 0, 0);
5543 vwprintw(status_win, msg, args);
5544 status_empty = FALSE;
5546 status_empty = TRUE;
5548 wclrtoeol(status_win);
5549 wrefresh(status_win);
5554 update_view_title(view);
5555 update_display_cursor(view);
5558 /* Controls when nodelay should be in effect when polling user input. */
5560 set_nonblocking_input(bool loading)
5562 static unsigned int loading_views;
5564 if ((loading == FALSE && loading_views-- == 1) ||
5565 (loading == TRUE && loading_views++ == 0))
5566 nodelay(status_win, loading);
5574 /* Initialize the curses library */
5575 if (isatty(STDIN_FILENO)) {
5576 cursed = !!initscr();
5579 /* Leave stdin and stdout alone when acting as a pager. */
5580 opt_tty = fopen("/dev/tty", "r+");
5582 die("Failed to open /dev/tty");
5583 cursed = !!newterm(NULL, opt_tty, opt_tty);
5587 die("Failed to initialize curses");
5589 nonl(); /* Tell curses not to do NL->CR/NL on output */
5590 cbreak(); /* Take input chars one at a time, no wait for \n */
5591 noecho(); /* Don't echo input */
5592 leaveok(stdscr, TRUE);
5597 getmaxyx(stdscr, y, x);
5598 status_win = newwin(1, 0, y - 1, 0);
5600 die("Failed to create status window");
5602 /* Enable keyboard mapping */
5603 keypad(status_win, TRUE);
5604 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5606 TABSIZE = opt_tab_size;
5607 if (opt_line_graphics) {
5608 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5613 prompt_yesno(const char *prompt)
5615 enum { WAIT, STOP, CANCEL } status = WAIT;
5616 bool answer = FALSE;
5618 while (status == WAIT) {
5624 foreach_view (view, i)
5629 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
5630 wclrtoeol(status_win);
5632 /* Refresh, accept single keystroke of input */
5633 key = wgetch(status_win);
5657 /* Clear the status window */
5658 status_empty = FALSE;
5665 read_prompt(const char *prompt)
5667 enum { READING, STOP, CANCEL } status = READING;
5668 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
5671 while (status == READING) {
5677 foreach_view (view, i)
5682 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5683 wclrtoeol(status_win);
5685 /* Refresh, accept single keystroke of input */
5686 key = wgetch(status_win);
5691 status = pos ? STOP : CANCEL;
5709 if (pos >= sizeof(buf)) {
5710 report("Input string too long");
5715 buf[pos++] = (char) key;
5719 /* Clear the status window */
5720 status_empty = FALSE;
5723 if (status == CANCEL)
5732 * Repository references
5735 static struct ref *refs = NULL;
5736 static size_t refs_alloc = 0;
5737 static size_t refs_size = 0;
5739 /* Id <-> ref store */
5740 static struct ref ***id_refs = NULL;
5741 static size_t id_refs_alloc = 0;
5742 static size_t id_refs_size = 0;
5745 compare_refs(const void *ref1_, const void *ref2_)
5747 const struct ref *ref1 = *(const struct ref **)ref1_;
5748 const struct ref *ref2 = *(const struct ref **)ref2_;
5750 if (ref1->tag != ref2->tag)
5751 return ref2->tag - ref1->tag;
5752 if (ref1->ltag != ref2->ltag)
5753 return ref2->ltag - ref2->ltag;
5754 if (ref1->head != ref2->head)
5755 return ref2->head - ref1->head;
5756 if (ref1->tracked != ref2->tracked)
5757 return ref2->tracked - ref1->tracked;
5758 if (ref1->remote != ref2->remote)
5759 return ref2->remote - ref1->remote;
5760 return strcmp(ref1->name, ref2->name);
5763 static struct ref **
5764 get_refs(const char *id)
5766 struct ref ***tmp_id_refs;
5767 struct ref **ref_list = NULL;
5768 size_t ref_list_alloc = 0;
5769 size_t ref_list_size = 0;
5772 for (i = 0; i < id_refs_size; i++)
5773 if (!strcmp(id, id_refs[i][0]->id))
5776 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
5781 id_refs = tmp_id_refs;
5783 for (i = 0; i < refs_size; i++) {
5786 if (strcmp(id, refs[i].id))
5789 tmp = realloc_items(ref_list, &ref_list_alloc,
5790 ref_list_size + 1, sizeof(*ref_list));
5798 ref_list[ref_list_size] = &refs[i];
5799 /* XXX: The properties of the commit chains ensures that we can
5800 * safely modify the shared ref. The repo references will
5801 * always be similar for the same id. */
5802 ref_list[ref_list_size]->next = 1;
5808 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
5809 ref_list[ref_list_size - 1]->next = 0;
5810 id_refs[id_refs_size++] = ref_list;
5817 read_ref(char *id, size_t idlen, char *name, size_t namelen)
5822 bool remote = FALSE;
5823 bool tracked = FALSE;
5824 bool check_replace = FALSE;
5827 if (!prefixcmp(name, "refs/tags/")) {
5828 if (!suffixcmp(name, namelen, "^{}")) {
5831 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
5832 check_replace = TRUE;
5838 namelen -= STRING_SIZE("refs/tags/");
5839 name += STRING_SIZE("refs/tags/");
5841 } else if (!prefixcmp(name, "refs/remotes/")) {
5843 namelen -= STRING_SIZE("refs/remotes/");
5844 name += STRING_SIZE("refs/remotes/");
5845 tracked = !strcmp(opt_remote, name);
5847 } else if (!prefixcmp(name, "refs/heads/")) {
5848 namelen -= STRING_SIZE("refs/heads/");
5849 name += STRING_SIZE("refs/heads/");
5850 head = !strncmp(opt_head, name, namelen);
5852 } else if (!strcmp(name, "HEAD")) {
5853 string_ncopy(opt_head_rev, id, idlen);
5857 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
5858 /* it's an annotated tag, replace the previous sha1 with the
5859 * resolved commit id; relies on the fact git-ls-remote lists
5860 * the commit id of an annotated tag right before the commit id
5862 refs[refs_size - 1].ltag = ltag;
5863 string_copy_rev(refs[refs_size - 1].id, id);
5867 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
5871 ref = &refs[refs_size++];
5872 ref->name = malloc(namelen + 1);
5876 strncpy(ref->name, name, namelen);
5877 ref->name[namelen] = 0;
5881 ref->remote = remote;
5882 ref->tracked = tracked;
5883 string_copy_rev(ref->id, id);
5891 const char *cmd_env = getenv("TIG_LS_REMOTE");
5892 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
5897 while (refs_size > 0)
5898 free(refs[--refs_size].name);
5899 while (id_refs_size > 0)
5900 free(id_refs[--id_refs_size]);
5902 return read_properties(popen(cmd, "r"), "\t", read_ref);
5906 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
5908 if (!strcmp(name, "i18n.commitencoding"))
5909 string_ncopy(opt_encoding, value, valuelen);
5911 if (!strcmp(name, "core.editor"))
5912 string_ncopy(opt_editor, value, valuelen);
5914 /* branch.<head>.remote */
5916 !strncmp(name, "branch.", 7) &&
5917 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5918 !strcmp(name + 7 + strlen(opt_head), ".remote"))
5919 string_ncopy(opt_remote, value, valuelen);
5921 if (*opt_head && *opt_remote &&
5922 !strncmp(name, "branch.", 7) &&
5923 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5924 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
5925 size_t from = strlen(opt_remote);
5927 if (!prefixcmp(value, "refs/heads/")) {
5928 value += STRING_SIZE("refs/heads/");
5929 valuelen -= STRING_SIZE("refs/heads/");
5932 if (!string_format_from(opt_remote, &from, "/%s", value))
5940 load_git_config(void)
5942 return read_properties(popen("git " GIT_CONFIG " --list", "r"),
5943 "=", read_repo_config_option);
5947 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
5949 if (!opt_git_dir[0]) {
5950 string_ncopy(opt_git_dir, name, namelen);
5952 } else if (opt_is_inside_work_tree == -1) {
5953 /* This can be 3 different values depending on the
5954 * version of git being used. If git-rev-parse does not
5955 * understand --is-inside-work-tree it will simply echo
5956 * the option else either "true" or "false" is printed.
5957 * Default to true for the unknown case. */
5958 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
5960 } else if (opt_cdup[0] == ' ') {
5961 string_ncopy(opt_cdup, name, namelen);
5963 if (!prefixcmp(name, "refs/heads/")) {
5964 namelen -= STRING_SIZE("refs/heads/");
5965 name += STRING_SIZE("refs/heads/");
5966 string_ncopy(opt_head, name, namelen);
5974 load_repo_info(void)
5977 FILE *pipe = popen("(git rev-parse --git-dir --is-inside-work-tree "
5978 " --show-cdup; git symbolic-ref HEAD) 2>/dev/null", "r");
5980 /* XXX: The line outputted by "--show-cdup" can be empty so
5981 * initialize it to something invalid to make it possible to
5982 * detect whether it has been set or not. */
5985 result = read_properties(pipe, "=", read_repo_info);
5986 if (opt_cdup[0] == ' ')
5993 read_properties(FILE *pipe, const char *separators,
5994 int (*read_property)(char *, size_t, char *, size_t))
5996 char buffer[BUFSIZ];
6003 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
6008 name = chomp_string(name);
6009 namelen = strcspn(name, separators);
6011 if (name[namelen]) {
6013 value = chomp_string(name + namelen + 1);
6014 valuelen = strlen(value);
6021 state = read_property(name, namelen, value, valuelen);
6024 if (state != ERR && ferror(pipe))
6037 static void __NORETURN
6040 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6046 static void __NORETURN
6047 die(const char *err, ...)
6053 va_start(args, err);
6054 fputs("tig: ", stderr);
6055 vfprintf(stderr, err, args);
6056 fputs("\n", stderr);
6063 warn(const char *msg, ...)
6067 va_start(args, msg);
6068 fputs("tig warning: ", stderr);
6069 vfprintf(stderr, msg, args);
6070 fputs("\n", stderr);
6075 main(int argc, const char *argv[])
6078 enum request request;
6081 signal(SIGINT, quit);
6083 if (setlocale(LC_ALL, "")) {
6084 char *codeset = nl_langinfo(CODESET);
6086 string_ncopy(opt_codeset, codeset, strlen(codeset));
6089 if (load_repo_info() == ERR)
6090 die("Failed to load repo info.");
6092 if (load_options() == ERR)
6093 die("Failed to load user config.");
6095 if (load_git_config() == ERR)
6096 die("Failed to load repo config.");
6098 request = parse_options(argc, argv);
6099 if (request == REQ_NONE)
6102 /* Require a git repository unless when running in pager mode. */
6103 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6104 die("Not a git repository");
6106 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6109 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6110 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6111 if (opt_iconv == ICONV_NONE)
6112 die("Failed to initialize character set conversion");
6115 if (load_refs() == ERR)
6116 die("Failed to load refs.");
6118 foreach_view (view, i)
6119 view->cmd_env = getenv(view->cmd_env);
6123 while (view_driver(display[current_view], request)) {
6127 foreach_view (view, i)
6129 view = display[current_view];
6131 /* Refresh, accept single keystroke of input */
6132 key = wgetch(status_win);
6134 /* wgetch() with nodelay() enabled returns ERR when there's no
6141 request = get_keybinding(view->keymap, key);
6143 /* Some low-level request handling. This keeps access to
6144 * status_win restricted. */
6148 char *cmd = read_prompt(":");
6150 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
6151 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
6152 request = REQ_VIEW_DIFF;
6154 request = REQ_VIEW_PAGER;
6157 /* Always reload^Wrerun commands from the prompt. */
6158 open_view(view, request, OPEN_RELOAD);
6165 case REQ_SEARCH_BACK:
6167 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6168 char *search = read_prompt(prompt);
6171 string_ncopy(opt_search, search, strlen(search));
6176 case REQ_SCREEN_RESIZE:
6180 getmaxyx(stdscr, height, width);
6182 /* Resize the status view and let the view driver take
6183 * care of resizing the displayed views. */
6184 wresize(status_win, 1, width);
6185 mvwin(status_win, height - 1, 0);
6186 wrefresh(status_win);