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, bool *read_file)
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);
3643 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;
3681 static bool read_file = TRUE;
3684 return blame_read_file(view, line, &read_file);
3691 string_format(view->ref, "%s", view->vid);
3692 if (view_is_displayed(view)) {
3693 update_view_title(view);
3694 redraw_view_from(view, 0);
3700 commit = parse_blame_commit(view, line, &blamed);
3701 string_format(view->ref, "%s %2d%%", view->vid,
3702 blamed * 100 / view->lines);
3704 } else if (match_blame_header("author ", &line)) {
3705 string_ncopy(commit->author, line, strlen(line));
3707 } else if (match_blame_header("author-time ", &line)) {
3708 author_time = (time_t) atol(line);
3710 } else if (match_blame_header("author-tz ", &line)) {
3713 tz = ('0' - line[1]) * 60 * 60 * 10;
3714 tz += ('0' - line[2]) * 60 * 60;
3715 tz += ('0' - line[3]) * 60;
3716 tz += ('0' - line[4]) * 60;
3722 gmtime_r(&author_time, &commit->time);
3724 } else if (match_blame_header("summary ", &line)) {
3725 string_ncopy(commit->title, line, strlen(line));
3727 } else if (match_blame_header("filename ", &line)) {
3728 string_ncopy(commit->filename, line, strlen(line));
3736 blame_draw(struct view *view, struct line *line, unsigned int lineno)
3738 struct blame *blame = line->data;
3739 struct tm *time = NULL;
3740 const char *id = NULL, *author = NULL;
3742 if (blame->commit && *blame->commit->filename) {
3743 id = blame->commit->id;
3744 author = blame->commit->author;
3745 time = &blame->commit->time;
3748 if (opt_date && draw_date(view, time))
3752 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
3755 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
3758 if (draw_lineno(view, lineno))
3761 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
3766 blame_request(struct view *view, enum request request, struct line *line)
3768 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3769 struct blame *blame = line->data;
3773 if (!blame->commit) {
3774 report("No commit loaded yet");
3778 if (!strcmp(blame->commit->id, NULL_ID)) {
3779 char path[SIZEOF_STR];
3781 if (sq_quote(path, 0, view->vid) >= sizeof(path))
3783 string_format(opt_cmd, "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s 2>/dev/null", path);
3786 open_view(view, REQ_VIEW_DIFF, flags);
3797 blame_grep(struct view *view, struct line *line)
3799 struct blame *blame = line->data;
3800 struct blame_commit *commit = blame->commit;
3803 #define MATCH(text, on) \
3804 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3807 char buf[DATE_COLS + 1];
3809 if (MATCH(commit->title, 1) ||
3810 MATCH(commit->author, opt_author) ||
3811 MATCH(commit->id, opt_date))
3814 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
3819 return MATCH(blame->text, 1);
3825 blame_select(struct view *view, struct line *line)
3827 struct blame *blame = line->data;
3828 struct blame_commit *commit = blame->commit;
3833 if (!strcmp(commit->id, NULL_ID))
3834 string_ncopy(ref_commit, "HEAD", 4);
3836 string_copy_rev(ref_commit, commit->id);
3839 static struct view_ops blame_ops = {
3857 char rev[SIZEOF_REV];
3858 char name[SIZEOF_STR];
3862 char rev[SIZEOF_REV];
3863 char name[SIZEOF_STR];
3867 static char status_onbranch[SIZEOF_STR];
3868 static struct status stage_status;
3869 static enum line_type stage_line_type;
3870 static size_t stage_chunks;
3871 static int *stage_chunk;
3873 /* This should work even for the "On branch" line. */
3875 status_has_none(struct view *view, struct line *line)
3877 return line < view->line + view->lines && !line[1].data;
3880 /* Get fields from the diff line:
3881 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3884 status_get_diff(struct status *file, const char *buf, size_t bufsize)
3886 const char *old_mode = buf + 1;
3887 const char *new_mode = buf + 8;
3888 const char *old_rev = buf + 15;
3889 const char *new_rev = buf + 56;
3890 const char *status = buf + 97;
3893 old_mode[-1] != ':' ||
3894 new_mode[-1] != ' ' ||
3895 old_rev[-1] != ' ' ||
3896 new_rev[-1] != ' ' ||
3900 file->status = *status;
3902 string_copy_rev(file->old.rev, old_rev);
3903 string_copy_rev(file->new.rev, new_rev);
3905 file->old.mode = strtoul(old_mode, NULL, 8);
3906 file->new.mode = strtoul(new_mode, NULL, 8);
3908 file->old.name[0] = file->new.name[0] = 0;
3914 status_run(struct view *view, const char cmd[], char status, enum line_type type)
3916 struct status *file = NULL;
3917 struct status *unmerged = NULL;
3918 char buf[SIZEOF_STR * 4];
3922 pipe = popen(cmd, "r");
3926 add_line_data(view, NULL, type);
3928 while (!feof(pipe) && !ferror(pipe)) {
3932 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3935 bufsize += readsize;
3937 /* Process while we have NUL chars. */
3938 while ((sep = memchr(buf, 0, bufsize))) {
3939 size_t sepsize = sep - buf + 1;
3942 if (!realloc_lines(view, view->line_size + 1))
3945 file = calloc(1, sizeof(*file));
3949 add_line_data(view, file, type);
3952 /* Parse diff info part. */
3954 file->status = status;
3956 string_copy(file->old.rev, NULL_ID);
3958 } else if (!file->status) {
3959 if (!status_get_diff(file, buf, sepsize))
3963 memmove(buf, sep + 1, bufsize);
3965 sep = memchr(buf, 0, bufsize);
3968 sepsize = sep - buf + 1;
3970 /* Collapse all 'M'odified entries that
3971 * follow a associated 'U'nmerged entry.
3973 if (file->status == 'U') {
3976 } else if (unmerged) {
3977 int collapse = !strcmp(buf, unmerged->new.name);
3988 /* Grab the old name for rename/copy. */
3989 if (!*file->old.name &&
3990 (file->status == 'R' || file->status == 'C')) {
3991 sepsize = sep - buf + 1;
3992 string_ncopy(file->old.name, buf, sepsize);
3994 memmove(buf, sep + 1, bufsize);
3996 sep = memchr(buf, 0, bufsize);
3999 sepsize = sep - buf + 1;
4002 /* git-ls-files just delivers a NUL separated
4003 * list of file names similar to the second half
4004 * of the git-diff-* output. */
4005 string_ncopy(file->new.name, buf, sepsize);
4006 if (!*file->old.name)
4007 string_copy(file->old.name, file->new.name);
4009 memmove(buf, sep + 1, bufsize);
4020 if (!view->line[view->lines - 1].data)
4021 add_line_data(view, NULL, LINE_STAT_NONE);
4027 /* Don't show unmerged entries in the staged section. */
4028 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD"
4029 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
4030 #define STATUS_LIST_OTHER_CMD \
4031 "git ls-files -z --others --exclude-standard"
4032 #define STATUS_LIST_NO_HEAD_CMD \
4033 "git ls-files -z --cached --exclude-standard"
4035 #define STATUS_DIFF_INDEX_SHOW_CMD \
4036 "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null"
4038 #define STATUS_DIFF_FILES_SHOW_CMD \
4039 "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null"
4041 #define STATUS_DIFF_NO_HEAD_SHOW_CMD \
4042 "git diff --no-color --patch-with-stat /dev/null %s 2>/dev/null"
4044 /* First parse staged info using git-diff-index(1), then parse unstaged
4045 * info using git-diff-files(1), and finally untracked files using
4046 * git-ls-files(1). */
4048 status_open(struct view *view)
4050 unsigned long prev_lineno = view->lineno;
4054 if (!realloc_lines(view, view->line_size + 7))
4057 add_line_data(view, NULL, LINE_STAT_HEAD);
4058 if (is_initial_commit())
4059 string_copy(status_onbranch, "Initial commit");
4060 else if (!*opt_head)
4061 string_copy(status_onbranch, "Not currently on any branch");
4062 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4065 system("git update-index -q --refresh >/dev/null 2>/dev/null");
4067 if (is_initial_commit()) {
4068 if (!status_run(view, STATUS_LIST_NO_HEAD_CMD, 'A', LINE_STAT_STAGED))
4070 } else if (!status_run(view, STATUS_DIFF_INDEX_CMD, 0, LINE_STAT_STAGED)) {
4074 if (!status_run(view, STATUS_DIFF_FILES_CMD, 0, LINE_STAT_UNSTAGED) ||
4075 !status_run(view, STATUS_LIST_OTHER_CMD, '?', LINE_STAT_UNTRACKED))
4078 /* If all went well restore the previous line number to stay in
4079 * the context or select a line with something that can be
4081 if (prev_lineno >= view->lines)
4082 prev_lineno = view->lines - 1;
4083 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4085 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4088 /* If the above fails, always skip the "On branch" line. */
4089 if (prev_lineno < view->lines)
4090 view->lineno = prev_lineno;
4094 if (view->lineno < view->offset)
4095 view->offset = view->lineno;
4096 else if (view->offset + view->height <= view->lineno)
4097 view->offset = view->lineno - view->height + 1;
4103 status_draw(struct view *view, struct line *line, unsigned int lineno)
4105 struct status *status = line->data;
4106 enum line_type type;
4110 switch (line->type) {
4111 case LINE_STAT_STAGED:
4112 type = LINE_STAT_SECTION;
4113 text = "Changes to be committed:";
4116 case LINE_STAT_UNSTAGED:
4117 type = LINE_STAT_SECTION;
4118 text = "Changed but not updated:";
4121 case LINE_STAT_UNTRACKED:
4122 type = LINE_STAT_SECTION;
4123 text = "Untracked files:";
4126 case LINE_STAT_NONE:
4127 type = LINE_DEFAULT;
4128 text = " (no files)";
4131 case LINE_STAT_HEAD:
4132 type = LINE_STAT_HEAD;
4133 text = status_onbranch;
4140 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4142 buf[0] = status->status;
4143 if (draw_text(view, line->type, buf, TRUE))
4145 type = LINE_DEFAULT;
4146 text = status->new.name;
4149 draw_text(view, type, text, TRUE);
4154 status_enter(struct view *view, struct line *line)
4156 struct status *status = line->data;
4157 char oldpath[SIZEOF_STR] = "";
4158 char newpath[SIZEOF_STR] = "";
4161 enum open_flags split;
4163 if (line->type == LINE_STAT_NONE ||
4164 (!status && line[1].type == LINE_STAT_NONE)) {
4165 report("No file to diff");
4170 if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath))
4172 /* Diffs for unmerged entries are empty when pasing the
4173 * new path, so leave it empty. */
4174 if (status->status != 'U' &&
4175 sq_quote(newpath, 0, status->new.name) >= sizeof(newpath))
4180 line->type != LINE_STAT_UNTRACKED &&
4181 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
4184 switch (line->type) {
4185 case LINE_STAT_STAGED:
4186 if (is_initial_commit()) {
4187 if (!string_format_from(opt_cmd, &cmdsize,
4188 STATUS_DIFF_NO_HEAD_SHOW_CMD,
4192 if (!string_format_from(opt_cmd, &cmdsize,
4193 STATUS_DIFF_INDEX_SHOW_CMD,
4199 info = "Staged changes to %s";
4201 info = "Staged changes";
4204 case LINE_STAT_UNSTAGED:
4205 if (!string_format_from(opt_cmd, &cmdsize,
4206 STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath))
4209 info = "Unstaged changes to %s";
4211 info = "Unstaged changes";
4214 case LINE_STAT_UNTRACKED:
4219 report("No file to show");
4223 if (!suffixcmp(status->new.name, -1, "/")) {
4224 report("Cannot display a directory");
4228 opt_pipe = fopen(status->new.name, "r");
4229 info = "Untracked file %s";
4232 case LINE_STAT_HEAD:
4236 die("line type %d not handled in switch", line->type);
4239 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4240 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | split);
4241 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4243 stage_status = *status;
4245 memset(&stage_status, 0, sizeof(stage_status));
4248 stage_line_type = line->type;
4250 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4257 status_exists(struct status *status, enum line_type type)
4259 struct view *view = VIEW(REQ_VIEW_STATUS);
4262 for (line = view->line; line < view->line + view->lines; line++) {
4263 struct status *pos = line->data;
4265 if (line->type == type && pos &&
4266 !strcmp(status->new.name, pos->new.name))
4275 status_update_prepare(enum line_type type)
4277 char cmd[SIZEOF_STR];
4281 type != LINE_STAT_UNTRACKED &&
4282 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4286 case LINE_STAT_STAGED:
4287 string_add(cmd, cmdsize, "git update-index -z --index-info");
4290 case LINE_STAT_UNSTAGED:
4291 case LINE_STAT_UNTRACKED:
4292 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
4296 die("line type %d not handled in switch", type);
4299 return popen(cmd, "w");
4303 status_update_write(FILE *pipe, struct status *status, enum line_type type)
4305 char buf[SIZEOF_STR];
4310 case LINE_STAT_STAGED:
4311 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4314 status->old.name, 0))
4318 case LINE_STAT_UNSTAGED:
4319 case LINE_STAT_UNTRACKED:
4320 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4325 die("line type %d not handled in switch", type);
4328 while (!ferror(pipe) && written < bufsize) {
4329 written += fwrite(buf + written, 1, bufsize - written, pipe);
4332 return written == bufsize;
4336 status_update_file(struct status *status, enum line_type type)
4338 FILE *pipe = status_update_prepare(type);
4344 result = status_update_write(pipe, status, type);
4350 status_update_files(struct view *view, struct line *line)
4352 FILE *pipe = status_update_prepare(line->type);
4354 struct line *pos = view->line + view->lines;
4361 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4364 for (file = 0, done = 0; result && file < files; line++, file++) {
4365 int almost_done = file * 100 / files;
4367 if (almost_done > done) {
4369 string_format(view->ref, "updating file %u of %u (%d%% done)",
4371 update_view_title(view);
4373 result = status_update_write(pipe, line->data, line->type);
4381 status_update(struct view *view)
4383 struct line *line = &view->line[view->lineno];
4385 assert(view->lines);
4388 /* This should work even for the "On branch" line. */
4389 if (line < view->line + view->lines && !line[1].data) {
4390 report("Nothing to update");
4394 if (!status_update_files(view, line + 1)) {
4395 report("Failed to update file status");
4399 } else if (!status_update_file(line->data, line->type)) {
4400 report("Failed to update file status");
4408 status_revert(struct status *status, enum line_type type, bool has_none)
4410 if (!status || type != LINE_STAT_UNSTAGED) {
4411 if (type == LINE_STAT_STAGED) {
4412 report("Cannot revert changes to staged files");
4413 } else if (type == LINE_STAT_UNTRACKED) {
4414 report("Cannot revert changes to untracked files");
4415 } else if (has_none) {
4416 report("Nothing to revert");
4418 report("Cannot revert changes to multiple files");
4423 char cmd[SIZEOF_STR];
4424 char file_sq[SIZEOF_STR];
4426 if (sq_quote(file_sq, 0, status->old.name) >= sizeof(file_sq) ||
4427 !string_format(cmd, "git checkout -- %s%s", opt_cdup, file_sq))
4430 return run_confirm(cmd, "Are you sure you want to overwrite any changes?");
4435 status_request(struct view *view, enum request request, struct line *line)
4437 struct status *status = line->data;
4440 case REQ_STATUS_UPDATE:
4441 if (!status_update(view))
4445 case REQ_STATUS_REVERT:
4446 if (!status_revert(status, line->type, status_has_none(view, line)))
4450 case REQ_STATUS_MERGE:
4451 if (!status || status->status != 'U') {
4452 report("Merging only possible for files with unmerged status ('U').");
4455 open_mergetool(status->new.name);
4461 if (status->status == 'D') {
4462 report("File has been deleted.");
4466 open_editor(status->status != '?', status->new.name);
4469 case REQ_VIEW_BLAME:
4471 string_copy(opt_file, status->new.name);
4477 /* After returning the status view has been split to
4478 * show the stage view. No further reloading is
4480 status_enter(view, line);
4484 /* Simply reload the view. */
4491 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4497 status_select(struct view *view, struct line *line)
4499 struct status *status = line->data;
4500 char file[SIZEOF_STR] = "all files";
4504 if (status && !string_format(file, "'%s'", status->new.name))
4507 if (!status && line[1].type == LINE_STAT_NONE)
4510 switch (line->type) {
4511 case LINE_STAT_STAGED:
4512 text = "Press %s to unstage %s for commit";
4515 case LINE_STAT_UNSTAGED:
4516 text = "Press %s to stage %s for commit";
4519 case LINE_STAT_UNTRACKED:
4520 text = "Press %s to stage %s for addition";
4523 case LINE_STAT_HEAD:
4524 case LINE_STAT_NONE:
4525 text = "Nothing to update";
4529 die("line type %d not handled in switch", line->type);
4532 if (status && status->status == 'U') {
4533 text = "Press %s to resolve conflict in %s";
4534 key = get_key(REQ_STATUS_MERGE);
4537 key = get_key(REQ_STATUS_UPDATE);
4540 string_format(view->ref, text, key, file);
4544 status_grep(struct view *view, struct line *line)
4546 struct status *status = line->data;
4547 enum { S_STATUS, S_NAME, S_END } state;
4554 for (state = S_STATUS; state < S_END; state++) {
4558 case S_NAME: text = status->new.name; break;
4560 buf[0] = status->status;
4568 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4575 static struct view_ops status_ops = {
4587 stage_diff_line(FILE *pipe, struct line *line)
4589 const char *buf = line->data;
4590 size_t bufsize = strlen(buf);
4593 while (!ferror(pipe) && written < bufsize) {
4594 written += fwrite(buf + written, 1, bufsize - written, pipe);
4599 return written == bufsize;
4603 stage_diff_write(FILE *pipe, struct line *line, struct line *end)
4605 while (line < end) {
4606 if (!stage_diff_line(pipe, line++))
4608 if (line->type == LINE_DIFF_CHUNK ||
4609 line->type == LINE_DIFF_HEADER)
4616 static struct line *
4617 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4619 for (; view->line < line; line--)
4620 if (line->type == type)
4627 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
4629 char cmd[SIZEOF_STR];
4631 struct line *diff_hdr;
4634 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4639 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4642 if (!string_format_from(cmd, &cmdsize,
4643 "git apply --whitespace=nowarn %s %s - && "
4644 "git update-index -q --unmerged --refresh 2>/dev/null",
4645 revert ? "" : "--cached",
4646 revert || stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
4649 pipe = popen(cmd, "w");
4653 if (!stage_diff_write(pipe, diff_hdr, chunk) ||
4654 !stage_diff_write(pipe, chunk, view->line + view->lines))
4659 return chunk ? TRUE : FALSE;
4663 stage_update(struct view *view, struct line *line)
4665 struct line *chunk = NULL;
4667 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
4668 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4671 if (!stage_apply_chunk(view, chunk, FALSE)) {
4672 report("Failed to apply chunk");
4676 } else if (!stage_status.status) {
4677 view = VIEW(REQ_VIEW_STATUS);
4679 for (line = view->line; line < view->line + view->lines; line++)
4680 if (line->type == stage_line_type)
4683 if (!status_update_files(view, line + 1)) {
4684 report("Failed to update files");
4688 } else if (!status_update_file(&stage_status, stage_line_type)) {
4689 report("Failed to update file");
4697 stage_revert(struct view *view, struct line *line)
4699 struct line *chunk = NULL;
4701 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
4702 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4705 if (!prompt_yesno("Are you sure you want to revert changes?"))
4708 if (!stage_apply_chunk(view, chunk, TRUE)) {
4709 report("Failed to revert chunk");
4715 return status_revert(stage_status.status ? &stage_status : NULL,
4716 stage_line_type, FALSE);
4722 stage_next(struct view *view, struct line *line)
4726 if (!stage_chunks) {
4727 static size_t alloc = 0;
4730 for (line = view->line; line < view->line + view->lines; line++) {
4731 if (line->type != LINE_DIFF_CHUNK)
4734 tmp = realloc_items(stage_chunk, &alloc,
4735 stage_chunks, sizeof(*tmp));
4737 report("Allocation failure");
4742 stage_chunk[stage_chunks++] = line - view->line;
4746 for (i = 0; i < stage_chunks; i++) {
4747 if (stage_chunk[i] > view->lineno) {
4748 do_scroll_view(view, stage_chunk[i] - view->lineno);
4749 report("Chunk %d of %d", i + 1, stage_chunks);
4754 report("No next chunk found");
4758 stage_request(struct view *view, enum request request, struct line *line)
4761 case REQ_STATUS_UPDATE:
4762 if (!stage_update(view, line))
4766 case REQ_STATUS_REVERT:
4767 if (!stage_revert(view, line))
4771 case REQ_STAGE_NEXT:
4772 if (stage_line_type == LINE_STAT_UNTRACKED) {
4773 report("File is untracked; press %s to add",
4774 get_key(REQ_STATUS_UPDATE));
4777 stage_next(view, line);
4781 if (!stage_status.new.name[0])
4783 if (stage_status.status == 'D') {
4784 report("File has been deleted.");
4788 open_editor(stage_status.status != '?', stage_status.new.name);
4792 /* Reload everything ... */
4795 case REQ_VIEW_BLAME:
4796 if (stage_status.new.name[0]) {
4797 string_copy(opt_file, stage_status.new.name);
4803 return pager_request(view, request, line);
4809 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4811 /* Check whether the staged entry still exists, and close the
4812 * stage view if it doesn't. */
4813 if (!status_exists(&stage_status, stage_line_type))
4814 return REQ_VIEW_CLOSE;
4816 if (stage_line_type == LINE_STAT_UNTRACKED) {
4817 if (!suffixcmp(stage_status.new.name, -1, "/")) {
4818 report("Cannot display a directory");
4822 opt_pipe = fopen(stage_status.new.name, "r");
4824 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
4829 static struct view_ops stage_ops = {
4845 char id[SIZEOF_REV]; /* SHA1 ID. */
4846 char title[128]; /* First line of the commit message. */
4847 char author[75]; /* Author of the commit. */
4848 struct tm time; /* Date from the author ident. */
4849 struct ref **refs; /* Repository references. */
4850 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
4851 size_t graph_size; /* The width of the graph array. */
4852 bool has_parents; /* Rewritten --parents seen. */
4855 /* Size of rev graph with no "padding" columns */
4856 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
4859 struct rev_graph *prev, *next, *parents;
4860 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
4862 struct commit *commit;
4864 unsigned int boundary:1;
4867 /* Parents of the commit being visualized. */
4868 static struct rev_graph graph_parents[4];
4870 /* The current stack of revisions on the graph. */
4871 static struct rev_graph graph_stacks[4] = {
4872 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
4873 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
4874 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
4875 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
4879 graph_parent_is_merge(struct rev_graph *graph)
4881 return graph->parents->size > 1;
4885 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
4887 struct commit *commit = graph->commit;
4889 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
4890 commit->graph[commit->graph_size++] = symbol;
4894 clear_rev_graph(struct rev_graph *graph)
4896 graph->boundary = 0;
4897 graph->size = graph->pos = 0;
4898 graph->commit = NULL;
4899 memset(graph->parents, 0, sizeof(*graph->parents));
4903 done_rev_graph(struct rev_graph *graph)
4905 if (graph_parent_is_merge(graph) &&
4906 graph->pos < graph->size - 1 &&
4907 graph->next->size == graph->size + graph->parents->size - 1) {
4908 size_t i = graph->pos + graph->parents->size - 1;
4910 graph->commit->graph_size = i * 2;
4911 while (i < graph->next->size - 1) {
4912 append_to_rev_graph(graph, ' ');
4913 append_to_rev_graph(graph, '\\');
4918 clear_rev_graph(graph);
4922 push_rev_graph(struct rev_graph *graph, const char *parent)
4926 /* "Collapse" duplicate parents lines.
4928 * FIXME: This needs to also update update the drawn graph but
4929 * for now it just serves as a method for pruning graph lines. */
4930 for (i = 0; i < graph->size; i++)
4931 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
4934 if (graph->size < SIZEOF_REVITEMS) {
4935 string_copy_rev(graph->rev[graph->size++], parent);
4940 get_rev_graph_symbol(struct rev_graph *graph)
4944 if (graph->boundary)
4945 symbol = REVGRAPH_BOUND;
4946 else if (graph->parents->size == 0)
4947 symbol = REVGRAPH_INIT;
4948 else if (graph_parent_is_merge(graph))
4949 symbol = REVGRAPH_MERGE;
4950 else if (graph->pos >= graph->size)
4951 symbol = REVGRAPH_BRANCH;
4953 symbol = REVGRAPH_COMMIT;
4959 draw_rev_graph(struct rev_graph *graph)
4962 chtype separator, line;
4964 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
4965 static struct rev_filler fillers[] = {
4971 chtype symbol = get_rev_graph_symbol(graph);
4972 struct rev_filler *filler;
4975 if (opt_line_graphics)
4976 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
4978 filler = &fillers[DEFAULT];
4980 for (i = 0; i < graph->pos; i++) {
4981 append_to_rev_graph(graph, filler->line);
4982 if (graph_parent_is_merge(graph->prev) &&
4983 graph->prev->pos == i)
4984 filler = &fillers[RSHARP];
4986 append_to_rev_graph(graph, filler->separator);
4989 /* Place the symbol for this revision. */
4990 append_to_rev_graph(graph, symbol);
4992 if (graph->prev->size > graph->size)
4993 filler = &fillers[RDIAG];
4995 filler = &fillers[DEFAULT];
4999 for (; i < graph->size; i++) {
5000 append_to_rev_graph(graph, filler->separator);
5001 append_to_rev_graph(graph, filler->line);
5002 if (graph_parent_is_merge(graph->prev) &&
5003 i < graph->prev->pos + graph->parents->size)
5004 filler = &fillers[RSHARP];
5005 if (graph->prev->size > graph->size)
5006 filler = &fillers[LDIAG];
5009 if (graph->prev->size > graph->size) {
5010 append_to_rev_graph(graph, filler->separator);
5011 if (filler->line != ' ')
5012 append_to_rev_graph(graph, filler->line);
5016 /* Prepare the next rev graph */
5018 prepare_rev_graph(struct rev_graph *graph)
5022 /* First, traverse all lines of revisions up to the active one. */
5023 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5024 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5027 push_rev_graph(graph->next, graph->rev[graph->pos]);
5030 /* Interleave the new revision parent(s). */
5031 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5032 push_rev_graph(graph->next, graph->parents->rev[i]);
5034 /* Lastly, put any remaining revisions. */
5035 for (i = graph->pos + 1; i < graph->size; i++)
5036 push_rev_graph(graph->next, graph->rev[i]);
5040 update_rev_graph(struct rev_graph *graph)
5042 /* If this is the finalizing update ... */
5044 prepare_rev_graph(graph);
5046 /* Graph visualization needs a one rev look-ahead,
5047 * so the first update doesn't visualize anything. */
5048 if (!graph->prev->commit)
5051 draw_rev_graph(graph->prev);
5052 done_rev_graph(graph->prev->prev);
5061 main_draw(struct view *view, struct line *line, unsigned int lineno)
5063 struct commit *commit = line->data;
5065 if (!*commit->author)
5068 if (opt_date && draw_date(view, &commit->time))
5072 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5075 if (opt_rev_graph && commit->graph_size &&
5076 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5079 if (opt_show_refs && commit->refs) {
5083 enum line_type type;
5085 if (commit->refs[i]->head)
5086 type = LINE_MAIN_HEAD;
5087 else if (commit->refs[i]->ltag)
5088 type = LINE_MAIN_LOCAL_TAG;
5089 else if (commit->refs[i]->tag)
5090 type = LINE_MAIN_TAG;
5091 else if (commit->refs[i]->tracked)
5092 type = LINE_MAIN_TRACKED;
5093 else if (commit->refs[i]->remote)
5094 type = LINE_MAIN_REMOTE;
5096 type = LINE_MAIN_REF;
5098 if (draw_text(view, type, "[", TRUE) ||
5099 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5100 draw_text(view, type, "]", TRUE))
5103 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5105 } while (commit->refs[i++]->next);
5108 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5112 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5114 main_read(struct view *view, char *line)
5116 static struct rev_graph *graph = graph_stacks;
5117 enum line_type type;
5118 struct commit *commit;
5123 if (!view->lines && !view->parent)
5124 die("No revisions match the given arguments.");
5125 if (view->lines > 0) {
5126 commit = view->line[view->lines - 1].data;
5127 if (!*commit->author) {
5130 graph->commit = NULL;
5133 update_rev_graph(graph);
5135 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5136 clear_rev_graph(&graph_stacks[i]);
5140 type = get_line_type(line);
5141 if (type == LINE_COMMIT) {
5142 commit = calloc(1, sizeof(struct commit));
5146 line += STRING_SIZE("commit ");
5148 graph->boundary = 1;
5152 string_copy_rev(commit->id, line);
5153 commit->refs = get_refs(commit->id);
5154 graph->commit = commit;
5155 add_line_data(view, commit, LINE_MAIN_COMMIT);
5157 while ((line = strchr(line, ' '))) {
5159 push_rev_graph(graph->parents, line);
5160 commit->has_parents = TRUE;
5167 commit = view->line[view->lines - 1].data;
5171 if (commit->has_parents)
5173 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5178 /* Parse author lines where the name may be empty:
5179 * author <email@address.tld> 1138474660 +0100
5181 char *ident = line + STRING_SIZE("author ");
5182 char *nameend = strchr(ident, '<');
5183 char *emailend = strchr(ident, '>');
5185 if (!nameend || !emailend)
5188 update_rev_graph(graph);
5189 graph = graph->next;
5191 *nameend = *emailend = 0;
5192 ident = chomp_string(ident);
5194 ident = chomp_string(nameend + 1);
5199 string_ncopy(commit->author, ident, strlen(ident));
5201 /* Parse epoch and timezone */
5202 if (emailend[1] == ' ') {
5203 char *secs = emailend + 2;
5204 char *zone = strchr(secs, ' ');
5205 time_t time = (time_t) atol(secs);
5207 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5211 tz = ('0' - zone[1]) * 60 * 60 * 10;
5212 tz += ('0' - zone[2]) * 60 * 60;
5213 tz += ('0' - zone[3]) * 60;
5214 tz += ('0' - zone[4]) * 60;
5222 gmtime_r(&time, &commit->time);
5227 /* Fill in the commit title if it has not already been set. */
5228 if (commit->title[0])
5231 /* Require titles to start with a non-space character at the
5232 * offset used by git log. */
5233 if (strncmp(line, " ", 4))
5236 /* Well, if the title starts with a whitespace character,
5237 * try to be forgiving. Otherwise we end up with no title. */
5238 while (isspace(*line))
5242 /* FIXME: More graceful handling of titles; append "..." to
5243 * shortened titles, etc. */
5245 string_ncopy(commit->title, line, strlen(line));
5252 main_request(struct view *view, enum request request, struct line *line)
5254 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5258 open_view(view, REQ_VIEW_DIFF, flags);
5262 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5272 grep_refs(struct ref **refs, regex_t *regex)
5280 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5282 } while (refs[i++]->next);
5288 main_grep(struct view *view, struct line *line)
5290 struct commit *commit = line->data;
5291 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5292 char buf[DATE_COLS + 1];
5295 for (state = S_TITLE; state < S_END; state++) {
5299 case S_TITLE: text = commit->title; break;
5303 text = commit->author;
5308 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5315 if (grep_refs(commit->refs, view->regex) == TRUE)
5322 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5330 main_select(struct view *view, struct line *line)
5332 struct commit *commit = line->data;
5334 string_copy_rev(view->ref, commit->id);
5335 string_copy_rev(ref_commit, view->ref);
5338 static struct view_ops main_ops = {
5350 * Unicode / UTF-8 handling
5352 * NOTE: Much of the following code for dealing with unicode is derived from
5353 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5354 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5357 /* I've (over)annotated a lot of code snippets because I am not entirely
5358 * confident that the approach taken by this small UTF-8 interface is correct.
5362 unicode_width(unsigned long c)
5365 (c <= 0x115f /* Hangul Jamo */
5368 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5370 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5371 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5372 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5373 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5374 || (c >= 0xffe0 && c <= 0xffe6)
5375 || (c >= 0x20000 && c <= 0x2fffd)
5376 || (c >= 0x30000 && c <= 0x3fffd)))
5380 return opt_tab_size;
5385 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5386 * Illegal bytes are set one. */
5387 static const unsigned char utf8_bytes[256] = {
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 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,
5393 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,
5394 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,
5395 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,
5398 /* Decode UTF-8 multi-byte representation into a unicode character. */
5399 static inline unsigned long
5400 utf8_to_unicode(const char *string, size_t length)
5402 unsigned long unicode;
5406 unicode = string[0];
5409 unicode = (string[0] & 0x1f) << 6;
5410 unicode += (string[1] & 0x3f);
5413 unicode = (string[0] & 0x0f) << 12;
5414 unicode += ((string[1] & 0x3f) << 6);
5415 unicode += (string[2] & 0x3f);
5418 unicode = (string[0] & 0x0f) << 18;
5419 unicode += ((string[1] & 0x3f) << 12);
5420 unicode += ((string[2] & 0x3f) << 6);
5421 unicode += (string[3] & 0x3f);
5424 unicode = (string[0] & 0x0f) << 24;
5425 unicode += ((string[1] & 0x3f) << 18);
5426 unicode += ((string[2] & 0x3f) << 12);
5427 unicode += ((string[3] & 0x3f) << 6);
5428 unicode += (string[4] & 0x3f);
5431 unicode = (string[0] & 0x01) << 30;
5432 unicode += ((string[1] & 0x3f) << 24);
5433 unicode += ((string[2] & 0x3f) << 18);
5434 unicode += ((string[3] & 0x3f) << 12);
5435 unicode += ((string[4] & 0x3f) << 6);
5436 unicode += (string[5] & 0x3f);
5439 die("Invalid unicode length");
5442 /* Invalid characters could return the special 0xfffd value but NUL
5443 * should be just as good. */
5444 return unicode > 0xffff ? 0 : unicode;
5447 /* Calculates how much of string can be shown within the given maximum width
5448 * and sets trimmed parameter to non-zero value if all of string could not be
5449 * shown. If the reserve flag is TRUE, it will reserve at least one
5450 * trailing character, which can be useful when drawing a delimiter.
5452 * Returns the number of bytes to output from string to satisfy max_width. */
5454 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5456 const char *start = string;
5457 const char *end = strchr(string, '\0');
5458 unsigned char last_bytes = 0;
5459 size_t last_ucwidth = 0;
5464 while (string < end) {
5465 int c = *(unsigned char *) string;
5466 unsigned char bytes = utf8_bytes[c];
5468 unsigned long unicode;
5470 if (string + bytes > end)
5473 /* Change representation to figure out whether
5474 * it is a single- or double-width character. */
5476 unicode = utf8_to_unicode(string, bytes);
5477 /* FIXME: Graceful handling of invalid unicode character. */
5481 ucwidth = unicode_width(unicode);
5483 if (*width > max_width) {
5486 if (reserve && *width == max_width) {
5487 string -= last_bytes;
5488 *width -= last_ucwidth;
5495 last_ucwidth = ucwidth;
5498 return string - start;
5506 /* Whether or not the curses interface has been initialized. */
5507 static bool cursed = FALSE;
5509 /* The status window is used for polling keystrokes. */
5510 static WINDOW *status_win;
5512 static bool status_empty = TRUE;
5514 /* Update status and title window. */
5516 report(const char *msg, ...)
5518 struct view *view = display[current_view];
5524 char buf[SIZEOF_STR];
5527 va_start(args, msg);
5528 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5529 buf[sizeof(buf) - 1] = 0;
5530 buf[sizeof(buf) - 2] = '.';
5531 buf[sizeof(buf) - 3] = '.';
5532 buf[sizeof(buf) - 4] = '.';
5538 if (!status_empty || *msg) {
5541 va_start(args, msg);
5543 wmove(status_win, 0, 0);
5545 vwprintw(status_win, msg, args);
5546 status_empty = FALSE;
5548 status_empty = TRUE;
5550 wclrtoeol(status_win);
5551 wrefresh(status_win);
5556 update_view_title(view);
5557 update_display_cursor(view);
5560 /* Controls when nodelay should be in effect when polling user input. */
5562 set_nonblocking_input(bool loading)
5564 static unsigned int loading_views;
5566 if ((loading == FALSE && loading_views-- == 1) ||
5567 (loading == TRUE && loading_views++ == 0))
5568 nodelay(status_win, loading);
5576 /* Initialize the curses library */
5577 if (isatty(STDIN_FILENO)) {
5578 cursed = !!initscr();
5581 /* Leave stdin and stdout alone when acting as a pager. */
5582 opt_tty = fopen("/dev/tty", "r+");
5584 die("Failed to open /dev/tty");
5585 cursed = !!newterm(NULL, opt_tty, opt_tty);
5589 die("Failed to initialize curses");
5591 nonl(); /* Tell curses not to do NL->CR/NL on output */
5592 cbreak(); /* Take input chars one at a time, no wait for \n */
5593 noecho(); /* Don't echo input */
5594 leaveok(stdscr, TRUE);
5599 getmaxyx(stdscr, y, x);
5600 status_win = newwin(1, 0, y - 1, 0);
5602 die("Failed to create status window");
5604 /* Enable keyboard mapping */
5605 keypad(status_win, TRUE);
5606 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5608 TABSIZE = opt_tab_size;
5609 if (opt_line_graphics) {
5610 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5615 prompt_yesno(const char *prompt)
5617 enum { WAIT, STOP, CANCEL } status = WAIT;
5618 bool answer = FALSE;
5620 while (status == WAIT) {
5626 foreach_view (view, i)
5631 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
5632 wclrtoeol(status_win);
5634 /* Refresh, accept single keystroke of input */
5635 key = wgetch(status_win);
5659 /* Clear the status window */
5660 status_empty = FALSE;
5667 read_prompt(const char *prompt)
5669 enum { READING, STOP, CANCEL } status = READING;
5670 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
5673 while (status == READING) {
5679 foreach_view (view, i)
5684 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5685 wclrtoeol(status_win);
5687 /* Refresh, accept single keystroke of input */
5688 key = wgetch(status_win);
5693 status = pos ? STOP : CANCEL;
5711 if (pos >= sizeof(buf)) {
5712 report("Input string too long");
5717 buf[pos++] = (char) key;
5721 /* Clear the status window */
5722 status_empty = FALSE;
5725 if (status == CANCEL)
5734 * Repository references
5737 static struct ref *refs = NULL;
5738 static size_t refs_alloc = 0;
5739 static size_t refs_size = 0;
5741 /* Id <-> ref store */
5742 static struct ref ***id_refs = NULL;
5743 static size_t id_refs_alloc = 0;
5744 static size_t id_refs_size = 0;
5747 compare_refs(const void *ref1_, const void *ref2_)
5749 const struct ref *ref1 = *(const struct ref **)ref1_;
5750 const struct ref *ref2 = *(const struct ref **)ref2_;
5752 if (ref1->tag != ref2->tag)
5753 return ref2->tag - ref1->tag;
5754 if (ref1->ltag != ref2->ltag)
5755 return ref2->ltag - ref2->ltag;
5756 if (ref1->head != ref2->head)
5757 return ref2->head - ref1->head;
5758 if (ref1->tracked != ref2->tracked)
5759 return ref2->tracked - ref1->tracked;
5760 if (ref1->remote != ref2->remote)
5761 return ref2->remote - ref1->remote;
5762 return strcmp(ref1->name, ref2->name);
5765 static struct ref **
5766 get_refs(const char *id)
5768 struct ref ***tmp_id_refs;
5769 struct ref **ref_list = NULL;
5770 size_t ref_list_alloc = 0;
5771 size_t ref_list_size = 0;
5774 for (i = 0; i < id_refs_size; i++)
5775 if (!strcmp(id, id_refs[i][0]->id))
5778 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
5783 id_refs = tmp_id_refs;
5785 for (i = 0; i < refs_size; i++) {
5788 if (strcmp(id, refs[i].id))
5791 tmp = realloc_items(ref_list, &ref_list_alloc,
5792 ref_list_size + 1, sizeof(*ref_list));
5800 ref_list[ref_list_size] = &refs[i];
5801 /* XXX: The properties of the commit chains ensures that we can
5802 * safely modify the shared ref. The repo references will
5803 * always be similar for the same id. */
5804 ref_list[ref_list_size]->next = 1;
5810 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
5811 ref_list[ref_list_size - 1]->next = 0;
5812 id_refs[id_refs_size++] = ref_list;
5819 read_ref(char *id, size_t idlen, char *name, size_t namelen)
5824 bool remote = FALSE;
5825 bool tracked = FALSE;
5826 bool check_replace = FALSE;
5829 if (!prefixcmp(name, "refs/tags/")) {
5830 if (!suffixcmp(name, namelen, "^{}")) {
5833 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
5834 check_replace = TRUE;
5840 namelen -= STRING_SIZE("refs/tags/");
5841 name += STRING_SIZE("refs/tags/");
5843 } else if (!prefixcmp(name, "refs/remotes/")) {
5845 namelen -= STRING_SIZE("refs/remotes/");
5846 name += STRING_SIZE("refs/remotes/");
5847 tracked = !strcmp(opt_remote, name);
5849 } else if (!prefixcmp(name, "refs/heads/")) {
5850 namelen -= STRING_SIZE("refs/heads/");
5851 name += STRING_SIZE("refs/heads/");
5852 head = !strncmp(opt_head, name, namelen);
5854 } else if (!strcmp(name, "HEAD")) {
5855 string_ncopy(opt_head_rev, id, idlen);
5859 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
5860 /* it's an annotated tag, replace the previous sha1 with the
5861 * resolved commit id; relies on the fact git-ls-remote lists
5862 * the commit id of an annotated tag right before the commit id
5864 refs[refs_size - 1].ltag = ltag;
5865 string_copy_rev(refs[refs_size - 1].id, id);
5869 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
5873 ref = &refs[refs_size++];
5874 ref->name = malloc(namelen + 1);
5878 strncpy(ref->name, name, namelen);
5879 ref->name[namelen] = 0;
5883 ref->remote = remote;
5884 ref->tracked = tracked;
5885 string_copy_rev(ref->id, id);
5893 const char *cmd_env = getenv("TIG_LS_REMOTE");
5894 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
5899 while (refs_size > 0)
5900 free(refs[--refs_size].name);
5901 while (id_refs_size > 0)
5902 free(id_refs[--id_refs_size]);
5904 return read_properties(popen(cmd, "r"), "\t", read_ref);
5908 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
5910 if (!strcmp(name, "i18n.commitencoding"))
5911 string_ncopy(opt_encoding, value, valuelen);
5913 if (!strcmp(name, "core.editor"))
5914 string_ncopy(opt_editor, value, valuelen);
5916 /* branch.<head>.remote */
5918 !strncmp(name, "branch.", 7) &&
5919 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5920 !strcmp(name + 7 + strlen(opt_head), ".remote"))
5921 string_ncopy(opt_remote, value, valuelen);
5923 if (*opt_head && *opt_remote &&
5924 !strncmp(name, "branch.", 7) &&
5925 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5926 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
5927 size_t from = strlen(opt_remote);
5929 if (!prefixcmp(value, "refs/heads/")) {
5930 value += STRING_SIZE("refs/heads/");
5931 valuelen -= STRING_SIZE("refs/heads/");
5934 if (!string_format_from(opt_remote, &from, "/%s", value))
5942 load_git_config(void)
5944 return read_properties(popen("git " GIT_CONFIG " --list", "r"),
5945 "=", read_repo_config_option);
5949 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
5951 if (!opt_git_dir[0]) {
5952 string_ncopy(opt_git_dir, name, namelen);
5954 } else if (opt_is_inside_work_tree == -1) {
5955 /* This can be 3 different values depending on the
5956 * version of git being used. If git-rev-parse does not
5957 * understand --is-inside-work-tree it will simply echo
5958 * the option else either "true" or "false" is printed.
5959 * Default to true for the unknown case. */
5960 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
5962 } else if (opt_cdup[0] == ' ') {
5963 string_ncopy(opt_cdup, name, namelen);
5965 if (!prefixcmp(name, "refs/heads/")) {
5966 namelen -= STRING_SIZE("refs/heads/");
5967 name += STRING_SIZE("refs/heads/");
5968 string_ncopy(opt_head, name, namelen);
5976 load_repo_info(void)
5979 FILE *pipe = popen("(git rev-parse --git-dir --is-inside-work-tree "
5980 " --show-cdup; git symbolic-ref HEAD) 2>/dev/null", "r");
5982 /* XXX: The line outputted by "--show-cdup" can be empty so
5983 * initialize it to something invalid to make it possible to
5984 * detect whether it has been set or not. */
5987 result = read_properties(pipe, "=", read_repo_info);
5988 if (opt_cdup[0] == ' ')
5995 read_properties(FILE *pipe, const char *separators,
5996 int (*read_property)(char *, size_t, char *, size_t))
5998 char buffer[BUFSIZ];
6005 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
6010 name = chomp_string(name);
6011 namelen = strcspn(name, separators);
6013 if (name[namelen]) {
6015 value = chomp_string(name + namelen + 1);
6016 valuelen = strlen(value);
6023 state = read_property(name, namelen, value, valuelen);
6026 if (state != ERR && ferror(pipe))
6039 static void __NORETURN
6042 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6048 static void __NORETURN
6049 die(const char *err, ...)
6055 va_start(args, err);
6056 fputs("tig: ", stderr);
6057 vfprintf(stderr, err, args);
6058 fputs("\n", stderr);
6065 warn(const char *msg, ...)
6069 va_start(args, msg);
6070 fputs("tig warning: ", stderr);
6071 vfprintf(stderr, msg, args);
6072 fputs("\n", stderr);
6077 main(int argc, const char *argv[])
6080 enum request request;
6083 signal(SIGINT, quit);
6085 if (setlocale(LC_ALL, "")) {
6086 char *codeset = nl_langinfo(CODESET);
6088 string_ncopy(opt_codeset, codeset, strlen(codeset));
6091 if (load_repo_info() == ERR)
6092 die("Failed to load repo info.");
6094 if (load_options() == ERR)
6095 die("Failed to load user config.");
6097 if (load_git_config() == ERR)
6098 die("Failed to load repo config.");
6100 request = parse_options(argc, argv);
6101 if (request == REQ_NONE)
6104 /* Require a git repository unless when running in pager mode. */
6105 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6106 die("Not a git repository");
6108 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6111 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6112 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6113 if (opt_iconv == ICONV_NONE)
6114 die("Failed to initialize character set conversion");
6117 if (load_refs() == ERR)
6118 die("Failed to load refs.");
6120 foreach_view (view, i)
6121 view->cmd_env = getenv(view->cmd_env);
6125 while (view_driver(display[current_view], request)) {
6129 foreach_view (view, i)
6131 view = display[current_view];
6133 /* Refresh, accept single keystroke of input */
6134 key = wgetch(status_win);
6136 /* wgetch() with nodelay() enabled returns ERR when there's no
6143 request = get_keybinding(view->keymap, key);
6145 /* Some low-level request handling. This keeps access to
6146 * status_win restricted. */
6150 char *cmd = read_prompt(":");
6152 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
6153 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
6154 request = REQ_VIEW_DIFF;
6156 request = REQ_VIEW_PAGER;
6159 /* Always reload^Wrerun commands from the prompt. */
6160 open_view(view, request, OPEN_RELOAD);
6167 case REQ_SEARCH_BACK:
6169 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6170 char *search = read_prompt(prompt);
6173 string_ncopy(opt_search, search, strlen(search));
6178 case REQ_SCREEN_RESIZE:
6182 getmaxyx(stdscr, height, width);
6184 /* Resize the status view and let the view driver take
6185 * care of resizing the displayed views. */
6186 wresize(status_win, 1, width);
6187 mvwin(status_win, height - 1, 0);
6188 wrefresh(status_win);