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;
747 static struct keybinding default_keybindings[] = {
749 { 'm', REQ_VIEW_MAIN },
750 { 'd', REQ_VIEW_DIFF },
751 { 'l', REQ_VIEW_LOG },
752 { 't', REQ_VIEW_TREE },
753 { 'f', REQ_VIEW_BLOB },
754 { 'B', REQ_VIEW_BLAME },
755 { 'p', REQ_VIEW_PAGER },
756 { 'h', REQ_VIEW_HELP },
757 { 'S', REQ_VIEW_STATUS },
758 { 'c', REQ_VIEW_STAGE },
760 /* View manipulation */
761 { 'q', REQ_VIEW_CLOSE },
762 { KEY_TAB, REQ_VIEW_NEXT },
763 { KEY_RETURN, REQ_ENTER },
764 { KEY_UP, REQ_PREVIOUS },
765 { KEY_DOWN, REQ_NEXT },
766 { 'R', REQ_REFRESH },
767 { KEY_F(5), REQ_REFRESH },
768 { 'O', REQ_MAXIMIZE },
770 /* Cursor navigation */
771 { 'k', REQ_MOVE_UP },
772 { 'j', REQ_MOVE_DOWN },
773 { KEY_HOME, REQ_MOVE_FIRST_LINE },
774 { KEY_END, REQ_MOVE_LAST_LINE },
775 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
776 { ' ', REQ_MOVE_PAGE_DOWN },
777 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
778 { 'b', REQ_MOVE_PAGE_UP },
779 { '-', REQ_MOVE_PAGE_UP },
782 { KEY_IC, REQ_SCROLL_LINE_UP },
783 { KEY_DC, REQ_SCROLL_LINE_DOWN },
784 { 'w', REQ_SCROLL_PAGE_UP },
785 { 's', REQ_SCROLL_PAGE_DOWN },
789 { '?', REQ_SEARCH_BACK },
790 { 'n', REQ_FIND_NEXT },
791 { 'N', REQ_FIND_PREV },
795 { 'z', REQ_STOP_LOADING },
796 { 'v', REQ_SHOW_VERSION },
797 { 'r', REQ_SCREEN_REDRAW },
798 { '.', REQ_TOGGLE_LINENO },
799 { 'D', REQ_TOGGLE_DATE },
800 { 'A', REQ_TOGGLE_AUTHOR },
801 { 'g', REQ_TOGGLE_REV_GRAPH },
802 { 'F', REQ_TOGGLE_REFS },
804 { 'u', REQ_STATUS_UPDATE },
805 { '!', REQ_STATUS_REVERT },
806 { 'M', REQ_STATUS_MERGE },
807 { '@', REQ_STAGE_NEXT },
808 { ',', REQ_TREE_PARENT },
811 /* Using the ncurses SIGWINCH handler. */
812 { KEY_RESIZE, REQ_SCREEN_RESIZE },
815 #define KEYMAP_INFO \
829 #define KEYMAP_(name) KEYMAP_##name
834 static struct int_map keymap_table[] = {
835 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
840 #define set_keymap(map, name) \
841 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
843 struct keybinding_table {
844 struct keybinding *data;
848 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
851 add_keybinding(enum keymap keymap, enum request request, int key)
853 struct keybinding_table *table = &keybindings[keymap];
855 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
857 die("Failed to allocate keybinding");
858 table->data[table->size].alias = key;
859 table->data[table->size++].request = request;
862 /* Looks for a key binding first in the given map, then in the generic map, and
863 * lastly in the default keybindings. */
865 get_keybinding(enum keymap keymap, int key)
869 for (i = 0; i < keybindings[keymap].size; i++)
870 if (keybindings[keymap].data[i].alias == key)
871 return keybindings[keymap].data[i].request;
873 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
874 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
875 return keybindings[KEYMAP_GENERIC].data[i].request;
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))
3531 if (*opt_ref || !(view->pipe = fopen(opt_file, "r"))) {
3532 const char *id = *opt_ref ? ref : "HEAD";
3534 if (!string_format(view->cmd, BLAME_CAT_FILE_CMD, id, path) ||
3535 !(view->pipe = popen(view->cmd, "r")))
3540 string_format(view->ref, "%s ...", opt_file);
3541 string_copy_rev(view->vid, opt_file);
3542 set_nonblocking_input(TRUE);
3543 view->start_time = time(NULL);
3548 static struct blame_commit *
3549 get_blame_commit(struct view *view, const char *id)
3553 for (i = 0; i < view->lines; i++) {
3554 struct blame *blame = view->line[i].data;
3559 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3560 return blame->commit;
3564 struct blame_commit *commit = calloc(1, sizeof(*commit));
3567 string_ncopy(commit->id, id, SIZEOF_REV);
3573 parse_number(const char **posref, size_t *number, size_t min, size_t max)
3575 const char *pos = *posref;
3578 pos = strchr(pos + 1, ' ');
3579 if (!pos || !isdigit(pos[1]))
3581 *number = atoi(pos + 1);
3582 if (*number < min || *number > max)
3589 static struct blame_commit *
3590 parse_blame_commit(struct view *view, const char *text, int *blamed)
3592 struct blame_commit *commit;
3593 struct blame *blame;
3594 const char *pos = text + SIZEOF_REV - 1;
3598 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3601 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3602 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3605 commit = get_blame_commit(view, text);
3611 struct line *line = &view->line[lineno + group - 1];
3614 blame->commit = commit;
3615 blame->header = !group;
3623 blame_read_file(struct view *view, const char *line, bool *read_file)
3626 char ref[SIZEOF_STR] = "";
3627 char path[SIZEOF_STR];
3630 if (view->lines == 0 && !view->parent)
3631 die("No blame exist for %s", view->vid);
3633 if (view->lines == 0 ||
3634 sq_quote(path, 0, opt_file) >= sizeof(path) ||
3635 (*opt_ref && sq_quote(ref, 0, opt_ref) >= sizeof(ref)) ||
3636 !string_format(view->cmd, BLAME_INCREMENTAL_CMD, ref, path) ||
3637 !(pipe = popen(view->cmd, "r"))) {
3638 report("Failed to load blame data");
3648 size_t linelen = strlen(line);
3649 struct blame *blame = malloc(sizeof(*blame) + linelen);
3651 blame->commit = NULL;
3652 strncpy(blame->text, line, linelen);
3653 blame->text[linelen] = 0;
3654 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3659 match_blame_header(const char *name, char **line)
3661 size_t namelen = strlen(name);
3662 bool matched = !strncmp(name, *line, namelen);
3671 blame_read(struct view *view, char *line)
3673 static struct blame_commit *commit = NULL;
3674 static int blamed = 0;
3675 static time_t author_time;
3676 static bool read_file = TRUE;
3679 return blame_read_file(view, line, &read_file);
3686 string_format(view->ref, "%s", view->vid);
3687 if (view_is_displayed(view)) {
3688 update_view_title(view);
3689 redraw_view_from(view, 0);
3695 commit = parse_blame_commit(view, line, &blamed);
3696 string_format(view->ref, "%s %2d%%", view->vid,
3697 blamed * 100 / view->lines);
3699 } else if (match_blame_header("author ", &line)) {
3700 string_ncopy(commit->author, line, strlen(line));
3702 } else if (match_blame_header("author-time ", &line)) {
3703 author_time = (time_t) atol(line);
3705 } else if (match_blame_header("author-tz ", &line)) {
3708 tz = ('0' - line[1]) * 60 * 60 * 10;
3709 tz += ('0' - line[2]) * 60 * 60;
3710 tz += ('0' - line[3]) * 60;
3711 tz += ('0' - line[4]) * 60;
3717 gmtime_r(&author_time, &commit->time);
3719 } else if (match_blame_header("summary ", &line)) {
3720 string_ncopy(commit->title, line, strlen(line));
3722 } else if (match_blame_header("filename ", &line)) {
3723 string_ncopy(commit->filename, line, strlen(line));
3731 blame_draw(struct view *view, struct line *line, unsigned int lineno)
3733 struct blame *blame = line->data;
3734 struct tm *time = NULL;
3735 const char *id = NULL, *author = NULL;
3737 if (blame->commit && *blame->commit->filename) {
3738 id = blame->commit->id;
3739 author = blame->commit->author;
3740 time = &blame->commit->time;
3743 if (opt_date && draw_date(view, time))
3747 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
3750 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
3753 if (draw_lineno(view, lineno))
3756 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
3761 blame_request(struct view *view, enum request request, struct line *line)
3763 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3764 struct blame *blame = line->data;
3768 if (!blame->commit) {
3769 report("No commit loaded yet");
3773 if (!strcmp(blame->commit->id, NULL_ID)) {
3774 char path[SIZEOF_STR];
3776 if (sq_quote(path, 0, view->vid) >= sizeof(path))
3778 string_format(opt_cmd, "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s 2>/dev/null", path);
3781 open_view(view, REQ_VIEW_DIFF, flags);
3792 blame_grep(struct view *view, struct line *line)
3794 struct blame *blame = line->data;
3795 struct blame_commit *commit = blame->commit;
3798 #define MATCH(text, on) \
3799 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3802 char buf[DATE_COLS + 1];
3804 if (MATCH(commit->title, 1) ||
3805 MATCH(commit->author, opt_author) ||
3806 MATCH(commit->id, opt_date))
3809 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
3814 return MATCH(blame->text, 1);
3820 blame_select(struct view *view, struct line *line)
3822 struct blame *blame = line->data;
3823 struct blame_commit *commit = blame->commit;
3828 if (!strcmp(commit->id, NULL_ID))
3829 string_ncopy(ref_commit, "HEAD", 4);
3831 string_copy_rev(ref_commit, commit->id);
3834 static struct view_ops blame_ops = {
3852 char rev[SIZEOF_REV];
3853 char name[SIZEOF_STR];
3857 char rev[SIZEOF_REV];
3858 char name[SIZEOF_STR];
3862 static char status_onbranch[SIZEOF_STR];
3863 static struct status stage_status;
3864 static enum line_type stage_line_type;
3865 static size_t stage_chunks;
3866 static int *stage_chunk;
3868 /* This should work even for the "On branch" line. */
3870 status_has_none(struct view *view, struct line *line)
3872 return line < view->line + view->lines && !line[1].data;
3875 /* Get fields from the diff line:
3876 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3879 status_get_diff(struct status *file, const char *buf, size_t bufsize)
3881 const char *old_mode = buf + 1;
3882 const char *new_mode = buf + 8;
3883 const char *old_rev = buf + 15;
3884 const char *new_rev = buf + 56;
3885 const char *status = buf + 97;
3888 old_mode[-1] != ':' ||
3889 new_mode[-1] != ' ' ||
3890 old_rev[-1] != ' ' ||
3891 new_rev[-1] != ' ' ||
3895 file->status = *status;
3897 string_copy_rev(file->old.rev, old_rev);
3898 string_copy_rev(file->new.rev, new_rev);
3900 file->old.mode = strtoul(old_mode, NULL, 8);
3901 file->new.mode = strtoul(new_mode, NULL, 8);
3903 file->old.name[0] = file->new.name[0] = 0;
3909 status_run(struct view *view, const char cmd[], char status, enum line_type type)
3911 struct status *file = NULL;
3912 struct status *unmerged = NULL;
3913 char buf[SIZEOF_STR * 4];
3917 pipe = popen(cmd, "r");
3921 add_line_data(view, NULL, type);
3923 while (!feof(pipe) && !ferror(pipe)) {
3927 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3930 bufsize += readsize;
3932 /* Process while we have NUL chars. */
3933 while ((sep = memchr(buf, 0, bufsize))) {
3934 size_t sepsize = sep - buf + 1;
3937 if (!realloc_lines(view, view->line_size + 1))
3940 file = calloc(1, sizeof(*file));
3944 add_line_data(view, file, type);
3947 /* Parse diff info part. */
3949 file->status = status;
3951 string_copy(file->old.rev, NULL_ID);
3953 } else if (!file->status) {
3954 if (!status_get_diff(file, buf, sepsize))
3958 memmove(buf, sep + 1, bufsize);
3960 sep = memchr(buf, 0, bufsize);
3963 sepsize = sep - buf + 1;
3965 /* Collapse all 'M'odified entries that
3966 * follow a associated 'U'nmerged entry.
3968 if (file->status == 'U') {
3971 } else if (unmerged) {
3972 int collapse = !strcmp(buf, unmerged->new.name);
3983 /* Grab the old name for rename/copy. */
3984 if (!*file->old.name &&
3985 (file->status == 'R' || file->status == 'C')) {
3986 sepsize = sep - buf + 1;
3987 string_ncopy(file->old.name, buf, sepsize);
3989 memmove(buf, sep + 1, bufsize);
3991 sep = memchr(buf, 0, bufsize);
3994 sepsize = sep - buf + 1;
3997 /* git-ls-files just delivers a NUL separated
3998 * list of file names similar to the second half
3999 * of the git-diff-* output. */
4000 string_ncopy(file->new.name, buf, sepsize);
4001 if (!*file->old.name)
4002 string_copy(file->old.name, file->new.name);
4004 memmove(buf, sep + 1, bufsize);
4015 if (!view->line[view->lines - 1].data)
4016 add_line_data(view, NULL, LINE_STAT_NONE);
4022 /* Don't show unmerged entries in the staged section. */
4023 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD"
4024 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
4025 #define STATUS_LIST_OTHER_CMD \
4026 "git ls-files -z --others --exclude-standard"
4027 #define STATUS_LIST_NO_HEAD_CMD \
4028 "git ls-files -z --cached --exclude-standard"
4030 #define STATUS_DIFF_INDEX_SHOW_CMD \
4031 "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null"
4033 #define STATUS_DIFF_FILES_SHOW_CMD \
4034 "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null"
4036 #define STATUS_DIFF_NO_HEAD_SHOW_CMD \
4037 "git diff --no-color --patch-with-stat /dev/null %s 2>/dev/null"
4039 /* First parse staged info using git-diff-index(1), then parse unstaged
4040 * info using git-diff-files(1), and finally untracked files using
4041 * git-ls-files(1). */
4043 status_open(struct view *view)
4045 unsigned long prev_lineno = view->lineno;
4049 if (!realloc_lines(view, view->line_size + 7))
4052 add_line_data(view, NULL, LINE_STAT_HEAD);
4053 if (is_initial_commit())
4054 string_copy(status_onbranch, "Initial commit");
4055 else if (!*opt_head)
4056 string_copy(status_onbranch, "Not currently on any branch");
4057 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4060 system("git update-index -q --refresh >/dev/null 2>/dev/null");
4062 if (is_initial_commit()) {
4063 if (!status_run(view, STATUS_LIST_NO_HEAD_CMD, 'A', LINE_STAT_STAGED))
4065 } else if (!status_run(view, STATUS_DIFF_INDEX_CMD, 0, LINE_STAT_STAGED)) {
4069 if (!status_run(view, STATUS_DIFF_FILES_CMD, 0, LINE_STAT_UNSTAGED) ||
4070 !status_run(view, STATUS_LIST_OTHER_CMD, '?', LINE_STAT_UNTRACKED))
4073 /* If all went well restore the previous line number to stay in
4074 * the context or select a line with something that can be
4076 if (prev_lineno >= view->lines)
4077 prev_lineno = view->lines - 1;
4078 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4080 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4083 /* If the above fails, always skip the "On branch" line. */
4084 if (prev_lineno < view->lines)
4085 view->lineno = prev_lineno;
4089 if (view->lineno < view->offset)
4090 view->offset = view->lineno;
4091 else if (view->offset + view->height <= view->lineno)
4092 view->offset = view->lineno - view->height + 1;
4098 status_draw(struct view *view, struct line *line, unsigned int lineno)
4100 struct status *status = line->data;
4101 enum line_type type;
4105 switch (line->type) {
4106 case LINE_STAT_STAGED:
4107 type = LINE_STAT_SECTION;
4108 text = "Changes to be committed:";
4111 case LINE_STAT_UNSTAGED:
4112 type = LINE_STAT_SECTION;
4113 text = "Changed but not updated:";
4116 case LINE_STAT_UNTRACKED:
4117 type = LINE_STAT_SECTION;
4118 text = "Untracked files:";
4121 case LINE_STAT_NONE:
4122 type = LINE_DEFAULT;
4123 text = " (no files)";
4126 case LINE_STAT_HEAD:
4127 type = LINE_STAT_HEAD;
4128 text = status_onbranch;
4135 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4137 buf[0] = status->status;
4138 if (draw_text(view, line->type, buf, TRUE))
4140 type = LINE_DEFAULT;
4141 text = status->new.name;
4144 draw_text(view, type, text, TRUE);
4149 status_enter(struct view *view, struct line *line)
4151 struct status *status = line->data;
4152 char oldpath[SIZEOF_STR] = "";
4153 char newpath[SIZEOF_STR] = "";
4156 enum open_flags split;
4158 if (line->type == LINE_STAT_NONE ||
4159 (!status && line[1].type == LINE_STAT_NONE)) {
4160 report("No file to diff");
4165 if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath))
4167 /* Diffs for unmerged entries are empty when pasing the
4168 * new path, so leave it empty. */
4169 if (status->status != 'U' &&
4170 sq_quote(newpath, 0, status->new.name) >= sizeof(newpath))
4175 line->type != LINE_STAT_UNTRACKED &&
4176 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
4179 switch (line->type) {
4180 case LINE_STAT_STAGED:
4181 if (is_initial_commit()) {
4182 if (!string_format_from(opt_cmd, &cmdsize,
4183 STATUS_DIFF_NO_HEAD_SHOW_CMD,
4187 if (!string_format_from(opt_cmd, &cmdsize,
4188 STATUS_DIFF_INDEX_SHOW_CMD,
4194 info = "Staged changes to %s";
4196 info = "Staged changes";
4199 case LINE_STAT_UNSTAGED:
4200 if (!string_format_from(opt_cmd, &cmdsize,
4201 STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath))
4204 info = "Unstaged changes to %s";
4206 info = "Unstaged changes";
4209 case LINE_STAT_UNTRACKED:
4214 report("No file to show");
4218 if (!suffixcmp(status->new.name, -1, "/")) {
4219 report("Cannot display a directory");
4223 opt_pipe = fopen(status->new.name, "r");
4224 info = "Untracked file %s";
4227 case LINE_STAT_HEAD:
4231 die("line type %d not handled in switch", line->type);
4234 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4235 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | split);
4236 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4238 stage_status = *status;
4240 memset(&stage_status, 0, sizeof(stage_status));
4243 stage_line_type = line->type;
4245 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4252 status_exists(struct status *status, enum line_type type)
4254 struct view *view = VIEW(REQ_VIEW_STATUS);
4257 for (line = view->line; line < view->line + view->lines; line++) {
4258 struct status *pos = line->data;
4260 if (line->type == type && pos &&
4261 !strcmp(status->new.name, pos->new.name))
4270 status_update_prepare(enum line_type type)
4272 char cmd[SIZEOF_STR];
4276 type != LINE_STAT_UNTRACKED &&
4277 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4281 case LINE_STAT_STAGED:
4282 string_add(cmd, cmdsize, "git update-index -z --index-info");
4285 case LINE_STAT_UNSTAGED:
4286 case LINE_STAT_UNTRACKED:
4287 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
4291 die("line type %d not handled in switch", type);
4294 return popen(cmd, "w");
4298 status_update_write(FILE *pipe, struct status *status, enum line_type type)
4300 char buf[SIZEOF_STR];
4305 case LINE_STAT_STAGED:
4306 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4309 status->old.name, 0))
4313 case LINE_STAT_UNSTAGED:
4314 case LINE_STAT_UNTRACKED:
4315 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4320 die("line type %d not handled in switch", type);
4323 while (!ferror(pipe) && written < bufsize) {
4324 written += fwrite(buf + written, 1, bufsize - written, pipe);
4327 return written == bufsize;
4331 status_update_file(struct status *status, enum line_type type)
4333 FILE *pipe = status_update_prepare(type);
4339 result = status_update_write(pipe, status, type);
4345 status_update_files(struct view *view, struct line *line)
4347 FILE *pipe = status_update_prepare(line->type);
4349 struct line *pos = view->line + view->lines;
4356 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4359 for (file = 0, done = 0; result && file < files; line++, file++) {
4360 int almost_done = file * 100 / files;
4362 if (almost_done > done) {
4364 string_format(view->ref, "updating file %u of %u (%d%% done)",
4366 update_view_title(view);
4368 result = status_update_write(pipe, line->data, line->type);
4376 status_update(struct view *view)
4378 struct line *line = &view->line[view->lineno];
4380 assert(view->lines);
4383 /* This should work even for the "On branch" line. */
4384 if (line < view->line + view->lines && !line[1].data) {
4385 report("Nothing to update");
4389 if (!status_update_files(view, line + 1)) {
4390 report("Failed to update file status");
4394 } else if (!status_update_file(line->data, line->type)) {
4395 report("Failed to update file status");
4403 status_revert(struct status *status, enum line_type type, bool has_none)
4405 if (!status || type != LINE_STAT_UNSTAGED) {
4406 if (type == LINE_STAT_STAGED) {
4407 report("Cannot revert changes to staged files");
4408 } else if (type == LINE_STAT_UNTRACKED) {
4409 report("Cannot revert changes to untracked files");
4410 } else if (has_none) {
4411 report("Nothing to revert");
4413 report("Cannot revert changes to multiple files");
4418 char cmd[SIZEOF_STR];
4419 char file_sq[SIZEOF_STR];
4421 if (sq_quote(file_sq, 0, status->old.name) >= sizeof(file_sq) ||
4422 !string_format(cmd, "git checkout -- %s%s", opt_cdup, file_sq))
4425 return run_confirm(cmd, "Are you sure you want to overwrite any changes?");
4430 status_request(struct view *view, enum request request, struct line *line)
4432 struct status *status = line->data;
4435 case REQ_STATUS_UPDATE:
4436 if (!status_update(view))
4440 case REQ_STATUS_REVERT:
4441 if (!status_revert(status, line->type, status_has_none(view, line)))
4445 case REQ_STATUS_MERGE:
4446 if (!status || status->status != 'U') {
4447 report("Merging only possible for files with unmerged status ('U').");
4450 open_mergetool(status->new.name);
4456 if (status->status == 'D') {
4457 report("File has been deleted.");
4461 open_editor(status->status != '?', status->new.name);
4464 case REQ_VIEW_BLAME:
4466 string_copy(opt_file, status->new.name);
4472 /* After returning the status view has been split to
4473 * show the stage view. No further reloading is
4475 status_enter(view, line);
4479 /* Simply reload the view. */
4486 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4492 status_select(struct view *view, struct line *line)
4494 struct status *status = line->data;
4495 char file[SIZEOF_STR] = "all files";
4499 if (status && !string_format(file, "'%s'", status->new.name))
4502 if (!status && line[1].type == LINE_STAT_NONE)
4505 switch (line->type) {
4506 case LINE_STAT_STAGED:
4507 text = "Press %s to unstage %s for commit";
4510 case LINE_STAT_UNSTAGED:
4511 text = "Press %s to stage %s for commit";
4514 case LINE_STAT_UNTRACKED:
4515 text = "Press %s to stage %s for addition";
4518 case LINE_STAT_HEAD:
4519 case LINE_STAT_NONE:
4520 text = "Nothing to update";
4524 die("line type %d not handled in switch", line->type);
4527 if (status && status->status == 'U') {
4528 text = "Press %s to resolve conflict in %s";
4529 key = get_key(REQ_STATUS_MERGE);
4532 key = get_key(REQ_STATUS_UPDATE);
4535 string_format(view->ref, text, key, file);
4539 status_grep(struct view *view, struct line *line)
4541 struct status *status = line->data;
4542 enum { S_STATUS, S_NAME, S_END } state;
4549 for (state = S_STATUS; state < S_END; state++) {
4553 case S_NAME: text = status->new.name; break;
4555 buf[0] = status->status;
4563 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4570 static struct view_ops status_ops = {
4582 stage_diff_line(FILE *pipe, struct line *line)
4584 const char *buf = line->data;
4585 size_t bufsize = strlen(buf);
4588 while (!ferror(pipe) && written < bufsize) {
4589 written += fwrite(buf + written, 1, bufsize - written, pipe);
4594 return written == bufsize;
4598 stage_diff_write(FILE *pipe, struct line *line, struct line *end)
4600 while (line < end) {
4601 if (!stage_diff_line(pipe, line++))
4603 if (line->type == LINE_DIFF_CHUNK ||
4604 line->type == LINE_DIFF_HEADER)
4611 static struct line *
4612 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4614 for (; view->line < line; line--)
4615 if (line->type == type)
4622 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
4624 char cmd[SIZEOF_STR];
4626 struct line *diff_hdr;
4629 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4634 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4637 if (!string_format_from(cmd, &cmdsize,
4638 "git apply --whitespace=nowarn %s %s - && "
4639 "git update-index -q --unmerged --refresh 2>/dev/null",
4640 revert ? "" : "--cached",
4641 revert || stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
4644 pipe = popen(cmd, "w");
4648 if (!stage_diff_write(pipe, diff_hdr, chunk) ||
4649 !stage_diff_write(pipe, chunk, view->line + view->lines))
4654 return chunk ? TRUE : FALSE;
4658 stage_update(struct view *view, struct line *line)
4660 struct line *chunk = NULL;
4662 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
4663 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4666 if (!stage_apply_chunk(view, chunk, FALSE)) {
4667 report("Failed to apply chunk");
4671 } else if (!stage_status.status) {
4672 view = VIEW(REQ_VIEW_STATUS);
4674 for (line = view->line; line < view->line + view->lines; line++)
4675 if (line->type == stage_line_type)
4678 if (!status_update_files(view, line + 1)) {
4679 report("Failed to update files");
4683 } else if (!status_update_file(&stage_status, stage_line_type)) {
4684 report("Failed to update file");
4692 stage_revert(struct view *view, struct line *line)
4694 struct line *chunk = NULL;
4696 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
4697 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4700 if (!prompt_yesno("Are you sure you want to revert changes?"))
4703 if (!stage_apply_chunk(view, chunk, TRUE)) {
4704 report("Failed to revert chunk");
4710 return status_revert(stage_status.status ? &stage_status : NULL,
4711 stage_line_type, FALSE);
4717 stage_next(struct view *view, struct line *line)
4721 if (!stage_chunks) {
4722 static size_t alloc = 0;
4725 for (line = view->line; line < view->line + view->lines; line++) {
4726 if (line->type != LINE_DIFF_CHUNK)
4729 tmp = realloc_items(stage_chunk, &alloc,
4730 stage_chunks, sizeof(*tmp));
4732 report("Allocation failure");
4737 stage_chunk[stage_chunks++] = line - view->line;
4741 for (i = 0; i < stage_chunks; i++) {
4742 if (stage_chunk[i] > view->lineno) {
4743 do_scroll_view(view, stage_chunk[i] - view->lineno);
4744 report("Chunk %d of %d", i + 1, stage_chunks);
4749 report("No next chunk found");
4753 stage_request(struct view *view, enum request request, struct line *line)
4756 case REQ_STATUS_UPDATE:
4757 if (!stage_update(view, line))
4761 case REQ_STATUS_REVERT:
4762 if (!stage_revert(view, line))
4766 case REQ_STAGE_NEXT:
4767 if (stage_line_type == LINE_STAT_UNTRACKED) {
4768 report("File is untracked; press %s to add",
4769 get_key(REQ_STATUS_UPDATE));
4772 stage_next(view, line);
4776 if (!stage_status.new.name[0])
4778 if (stage_status.status == 'D') {
4779 report("File has been deleted.");
4783 open_editor(stage_status.status != '?', stage_status.new.name);
4787 /* Reload everything ... */
4790 case REQ_VIEW_BLAME:
4791 if (stage_status.new.name[0]) {
4792 string_copy(opt_file, stage_status.new.name);
4798 return pager_request(view, request, line);
4804 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4806 /* Check whether the staged entry still exists, and close the
4807 * stage view if it doesn't. */
4808 if (!status_exists(&stage_status, stage_line_type))
4809 return REQ_VIEW_CLOSE;
4811 if (stage_line_type == LINE_STAT_UNTRACKED) {
4812 if (!suffixcmp(stage_status.new.name, -1, "/")) {
4813 report("Cannot display a directory");
4817 opt_pipe = fopen(stage_status.new.name, "r");
4819 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
4824 static struct view_ops stage_ops = {
4840 char id[SIZEOF_REV]; /* SHA1 ID. */
4841 char title[128]; /* First line of the commit message. */
4842 char author[75]; /* Author of the commit. */
4843 struct tm time; /* Date from the author ident. */
4844 struct ref **refs; /* Repository references. */
4845 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
4846 size_t graph_size; /* The width of the graph array. */
4847 bool has_parents; /* Rewritten --parents seen. */
4850 /* Size of rev graph with no "padding" columns */
4851 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
4854 struct rev_graph *prev, *next, *parents;
4855 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
4857 struct commit *commit;
4859 unsigned int boundary:1;
4862 /* Parents of the commit being visualized. */
4863 static struct rev_graph graph_parents[4];
4865 /* The current stack of revisions on the graph. */
4866 static struct rev_graph graph_stacks[4] = {
4867 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
4868 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
4869 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
4870 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
4874 graph_parent_is_merge(struct rev_graph *graph)
4876 return graph->parents->size > 1;
4880 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
4882 struct commit *commit = graph->commit;
4884 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
4885 commit->graph[commit->graph_size++] = symbol;
4889 clear_rev_graph(struct rev_graph *graph)
4891 graph->boundary = 0;
4892 graph->size = graph->pos = 0;
4893 graph->commit = NULL;
4894 memset(graph->parents, 0, sizeof(*graph->parents));
4898 done_rev_graph(struct rev_graph *graph)
4900 if (graph_parent_is_merge(graph) &&
4901 graph->pos < graph->size - 1 &&
4902 graph->next->size == graph->size + graph->parents->size - 1) {
4903 size_t i = graph->pos + graph->parents->size - 1;
4905 graph->commit->graph_size = i * 2;
4906 while (i < graph->next->size - 1) {
4907 append_to_rev_graph(graph, ' ');
4908 append_to_rev_graph(graph, '\\');
4913 clear_rev_graph(graph);
4917 push_rev_graph(struct rev_graph *graph, const char *parent)
4921 /* "Collapse" duplicate parents lines.
4923 * FIXME: This needs to also update update the drawn graph but
4924 * for now it just serves as a method for pruning graph lines. */
4925 for (i = 0; i < graph->size; i++)
4926 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
4929 if (graph->size < SIZEOF_REVITEMS) {
4930 string_copy_rev(graph->rev[graph->size++], parent);
4935 get_rev_graph_symbol(struct rev_graph *graph)
4939 if (graph->boundary)
4940 symbol = REVGRAPH_BOUND;
4941 else if (graph->parents->size == 0)
4942 symbol = REVGRAPH_INIT;
4943 else if (graph_parent_is_merge(graph))
4944 symbol = REVGRAPH_MERGE;
4945 else if (graph->pos >= graph->size)
4946 symbol = REVGRAPH_BRANCH;
4948 symbol = REVGRAPH_COMMIT;
4954 draw_rev_graph(struct rev_graph *graph)
4957 chtype separator, line;
4959 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
4960 static struct rev_filler fillers[] = {
4966 chtype symbol = get_rev_graph_symbol(graph);
4967 struct rev_filler *filler;
4970 if (opt_line_graphics)
4971 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
4973 filler = &fillers[DEFAULT];
4975 for (i = 0; i < graph->pos; i++) {
4976 append_to_rev_graph(graph, filler->line);
4977 if (graph_parent_is_merge(graph->prev) &&
4978 graph->prev->pos == i)
4979 filler = &fillers[RSHARP];
4981 append_to_rev_graph(graph, filler->separator);
4984 /* Place the symbol for this revision. */
4985 append_to_rev_graph(graph, symbol);
4987 if (graph->prev->size > graph->size)
4988 filler = &fillers[RDIAG];
4990 filler = &fillers[DEFAULT];
4994 for (; i < graph->size; i++) {
4995 append_to_rev_graph(graph, filler->separator);
4996 append_to_rev_graph(graph, filler->line);
4997 if (graph_parent_is_merge(graph->prev) &&
4998 i < graph->prev->pos + graph->parents->size)
4999 filler = &fillers[RSHARP];
5000 if (graph->prev->size > graph->size)
5001 filler = &fillers[LDIAG];
5004 if (graph->prev->size > graph->size) {
5005 append_to_rev_graph(graph, filler->separator);
5006 if (filler->line != ' ')
5007 append_to_rev_graph(graph, filler->line);
5011 /* Prepare the next rev graph */
5013 prepare_rev_graph(struct rev_graph *graph)
5017 /* First, traverse all lines of revisions up to the active one. */
5018 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5019 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5022 push_rev_graph(graph->next, graph->rev[graph->pos]);
5025 /* Interleave the new revision parent(s). */
5026 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5027 push_rev_graph(graph->next, graph->parents->rev[i]);
5029 /* Lastly, put any remaining revisions. */
5030 for (i = graph->pos + 1; i < graph->size; i++)
5031 push_rev_graph(graph->next, graph->rev[i]);
5035 update_rev_graph(struct rev_graph *graph)
5037 /* If this is the finalizing update ... */
5039 prepare_rev_graph(graph);
5041 /* Graph visualization needs a one rev look-ahead,
5042 * so the first update doesn't visualize anything. */
5043 if (!graph->prev->commit)
5046 draw_rev_graph(graph->prev);
5047 done_rev_graph(graph->prev->prev);
5056 main_draw(struct view *view, struct line *line, unsigned int lineno)
5058 struct commit *commit = line->data;
5060 if (!*commit->author)
5063 if (opt_date && draw_date(view, &commit->time))
5067 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5070 if (opt_rev_graph && commit->graph_size &&
5071 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5074 if (opt_show_refs && commit->refs) {
5078 enum line_type type;
5080 if (commit->refs[i]->head)
5081 type = LINE_MAIN_HEAD;
5082 else if (commit->refs[i]->ltag)
5083 type = LINE_MAIN_LOCAL_TAG;
5084 else if (commit->refs[i]->tag)
5085 type = LINE_MAIN_TAG;
5086 else if (commit->refs[i]->tracked)
5087 type = LINE_MAIN_TRACKED;
5088 else if (commit->refs[i]->remote)
5089 type = LINE_MAIN_REMOTE;
5091 type = LINE_MAIN_REF;
5093 if (draw_text(view, type, "[", TRUE) ||
5094 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5095 draw_text(view, type, "]", TRUE))
5098 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5100 } while (commit->refs[i++]->next);
5103 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5107 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5109 main_read(struct view *view, char *line)
5111 static struct rev_graph *graph = graph_stacks;
5112 enum line_type type;
5113 struct commit *commit;
5118 if (!view->lines && !view->parent)
5119 die("No revisions match the given arguments.");
5120 if (view->lines > 0) {
5121 commit = view->line[view->lines - 1].data;
5122 if (!*commit->author) {
5125 graph->commit = NULL;
5128 update_rev_graph(graph);
5130 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5131 clear_rev_graph(&graph_stacks[i]);
5135 type = get_line_type(line);
5136 if (type == LINE_COMMIT) {
5137 commit = calloc(1, sizeof(struct commit));
5141 line += STRING_SIZE("commit ");
5143 graph->boundary = 1;
5147 string_copy_rev(commit->id, line);
5148 commit->refs = get_refs(commit->id);
5149 graph->commit = commit;
5150 add_line_data(view, commit, LINE_MAIN_COMMIT);
5152 while ((line = strchr(line, ' '))) {
5154 push_rev_graph(graph->parents, line);
5155 commit->has_parents = TRUE;
5162 commit = view->line[view->lines - 1].data;
5166 if (commit->has_parents)
5168 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5173 /* Parse author lines where the name may be empty:
5174 * author <email@address.tld> 1138474660 +0100
5176 char *ident = line + STRING_SIZE("author ");
5177 char *nameend = strchr(ident, '<');
5178 char *emailend = strchr(ident, '>');
5180 if (!nameend || !emailend)
5183 update_rev_graph(graph);
5184 graph = graph->next;
5186 *nameend = *emailend = 0;
5187 ident = chomp_string(ident);
5189 ident = chomp_string(nameend + 1);
5194 string_ncopy(commit->author, ident, strlen(ident));
5196 /* Parse epoch and timezone */
5197 if (emailend[1] == ' ') {
5198 char *secs = emailend + 2;
5199 char *zone = strchr(secs, ' ');
5200 time_t time = (time_t) atol(secs);
5202 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5206 tz = ('0' - zone[1]) * 60 * 60 * 10;
5207 tz += ('0' - zone[2]) * 60 * 60;
5208 tz += ('0' - zone[3]) * 60;
5209 tz += ('0' - zone[4]) * 60;
5217 gmtime_r(&time, &commit->time);
5222 /* Fill in the commit title if it has not already been set. */
5223 if (commit->title[0])
5226 /* Require titles to start with a non-space character at the
5227 * offset used by git log. */
5228 if (strncmp(line, " ", 4))
5231 /* Well, if the title starts with a whitespace character,
5232 * try to be forgiving. Otherwise we end up with no title. */
5233 while (isspace(*line))
5237 /* FIXME: More graceful handling of titles; append "..." to
5238 * shortened titles, etc. */
5240 string_ncopy(commit->title, line, strlen(line));
5247 main_request(struct view *view, enum request request, struct line *line)
5249 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5253 open_view(view, REQ_VIEW_DIFF, flags);
5257 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5267 grep_refs(struct ref **refs, regex_t *regex)
5275 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5277 } while (refs[i++]->next);
5283 main_grep(struct view *view, struct line *line)
5285 struct commit *commit = line->data;
5286 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5287 char buf[DATE_COLS + 1];
5290 for (state = S_TITLE; state < S_END; state++) {
5294 case S_TITLE: text = commit->title; break;
5298 text = commit->author;
5303 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5310 if (grep_refs(commit->refs, view->regex) == TRUE)
5317 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5325 main_select(struct view *view, struct line *line)
5327 struct commit *commit = line->data;
5329 string_copy_rev(view->ref, commit->id);
5330 string_copy_rev(ref_commit, view->ref);
5333 static struct view_ops main_ops = {
5345 * Unicode / UTF-8 handling
5347 * NOTE: Much of the following code for dealing with unicode is derived from
5348 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5349 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5352 /* I've (over)annotated a lot of code snippets because I am not entirely
5353 * confident that the approach taken by this small UTF-8 interface is correct.
5357 unicode_width(unsigned long c)
5360 (c <= 0x115f /* Hangul Jamo */
5363 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5365 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5366 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5367 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5368 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5369 || (c >= 0xffe0 && c <= 0xffe6)
5370 || (c >= 0x20000 && c <= 0x2fffd)
5371 || (c >= 0x30000 && c <= 0x3fffd)))
5375 return opt_tab_size;
5380 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5381 * Illegal bytes are set one. */
5382 static const unsigned char utf8_bytes[256] = {
5383 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,
5384 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,
5385 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,
5386 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5387 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5388 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5389 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,
5390 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,
5393 /* Decode UTF-8 multi-byte representation into a unicode character. */
5394 static inline unsigned long
5395 utf8_to_unicode(const char *string, size_t length)
5397 unsigned long unicode;
5401 unicode = string[0];
5404 unicode = (string[0] & 0x1f) << 6;
5405 unicode += (string[1] & 0x3f);
5408 unicode = (string[0] & 0x0f) << 12;
5409 unicode += ((string[1] & 0x3f) << 6);
5410 unicode += (string[2] & 0x3f);
5413 unicode = (string[0] & 0x0f) << 18;
5414 unicode += ((string[1] & 0x3f) << 12);
5415 unicode += ((string[2] & 0x3f) << 6);
5416 unicode += (string[3] & 0x3f);
5419 unicode = (string[0] & 0x0f) << 24;
5420 unicode += ((string[1] & 0x3f) << 18);
5421 unicode += ((string[2] & 0x3f) << 12);
5422 unicode += ((string[3] & 0x3f) << 6);
5423 unicode += (string[4] & 0x3f);
5426 unicode = (string[0] & 0x01) << 30;
5427 unicode += ((string[1] & 0x3f) << 24);
5428 unicode += ((string[2] & 0x3f) << 18);
5429 unicode += ((string[3] & 0x3f) << 12);
5430 unicode += ((string[4] & 0x3f) << 6);
5431 unicode += (string[5] & 0x3f);
5434 die("Invalid unicode length");
5437 /* Invalid characters could return the special 0xfffd value but NUL
5438 * should be just as good. */
5439 return unicode > 0xffff ? 0 : unicode;
5442 /* Calculates how much of string can be shown within the given maximum width
5443 * and sets trimmed parameter to non-zero value if all of string could not be
5444 * shown. If the reserve flag is TRUE, it will reserve at least one
5445 * trailing character, which can be useful when drawing a delimiter.
5447 * Returns the number of bytes to output from string to satisfy max_width. */
5449 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5451 const char *start = string;
5452 const char *end = strchr(string, '\0');
5453 unsigned char last_bytes = 0;
5454 size_t last_ucwidth = 0;
5459 while (string < end) {
5460 int c = *(unsigned char *) string;
5461 unsigned char bytes = utf8_bytes[c];
5463 unsigned long unicode;
5465 if (string + bytes > end)
5468 /* Change representation to figure out whether
5469 * it is a single- or double-width character. */
5471 unicode = utf8_to_unicode(string, bytes);
5472 /* FIXME: Graceful handling of invalid unicode character. */
5476 ucwidth = unicode_width(unicode);
5478 if (*width > max_width) {
5481 if (reserve && *width == max_width) {
5482 string -= last_bytes;
5483 *width -= last_ucwidth;
5490 last_ucwidth = ucwidth;
5493 return string - start;
5501 /* Whether or not the curses interface has been initialized. */
5502 static bool cursed = FALSE;
5504 /* The status window is used for polling keystrokes. */
5505 static WINDOW *status_win;
5507 static bool status_empty = TRUE;
5509 /* Update status and title window. */
5511 report(const char *msg, ...)
5513 struct view *view = display[current_view];
5519 char buf[SIZEOF_STR];
5522 va_start(args, msg);
5523 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5524 buf[sizeof(buf) - 1] = 0;
5525 buf[sizeof(buf) - 2] = '.';
5526 buf[sizeof(buf) - 3] = '.';
5527 buf[sizeof(buf) - 4] = '.';
5533 if (!status_empty || *msg) {
5536 va_start(args, msg);
5538 wmove(status_win, 0, 0);
5540 vwprintw(status_win, msg, args);
5541 status_empty = FALSE;
5543 status_empty = TRUE;
5545 wclrtoeol(status_win);
5546 wrefresh(status_win);
5551 update_view_title(view);
5552 update_display_cursor(view);
5555 /* Controls when nodelay should be in effect when polling user input. */
5557 set_nonblocking_input(bool loading)
5559 static unsigned int loading_views;
5561 if ((loading == FALSE && loading_views-- == 1) ||
5562 (loading == TRUE && loading_views++ == 0))
5563 nodelay(status_win, loading);
5571 /* Initialize the curses library */
5572 if (isatty(STDIN_FILENO)) {
5573 cursed = !!initscr();
5576 /* Leave stdin and stdout alone when acting as a pager. */
5577 opt_tty = fopen("/dev/tty", "r+");
5579 die("Failed to open /dev/tty");
5580 cursed = !!newterm(NULL, opt_tty, opt_tty);
5584 die("Failed to initialize curses");
5586 nonl(); /* Tell curses not to do NL->CR/NL on output */
5587 cbreak(); /* Take input chars one at a time, no wait for \n */
5588 noecho(); /* Don't echo input */
5589 leaveok(stdscr, TRUE);
5594 getmaxyx(stdscr, y, x);
5595 status_win = newwin(1, 0, y - 1, 0);
5597 die("Failed to create status window");
5599 /* Enable keyboard mapping */
5600 keypad(status_win, TRUE);
5601 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5603 TABSIZE = opt_tab_size;
5604 if (opt_line_graphics) {
5605 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5610 prompt_yesno(const char *prompt)
5612 enum { WAIT, STOP, CANCEL } status = WAIT;
5613 bool answer = FALSE;
5615 while (status == WAIT) {
5621 foreach_view (view, i)
5626 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
5627 wclrtoeol(status_win);
5629 /* Refresh, accept single keystroke of input */
5630 key = wgetch(status_win);
5654 /* Clear the status window */
5655 status_empty = FALSE;
5662 read_prompt(const char *prompt)
5664 enum { READING, STOP, CANCEL } status = READING;
5665 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
5668 while (status == READING) {
5674 foreach_view (view, i)
5679 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5680 wclrtoeol(status_win);
5682 /* Refresh, accept single keystroke of input */
5683 key = wgetch(status_win);
5688 status = pos ? STOP : CANCEL;
5706 if (pos >= sizeof(buf)) {
5707 report("Input string too long");
5712 buf[pos++] = (char) key;
5716 /* Clear the status window */
5717 status_empty = FALSE;
5720 if (status == CANCEL)
5729 * Repository references
5732 static struct ref *refs = NULL;
5733 static size_t refs_alloc = 0;
5734 static size_t refs_size = 0;
5736 /* Id <-> ref store */
5737 static struct ref ***id_refs = NULL;
5738 static size_t id_refs_alloc = 0;
5739 static size_t id_refs_size = 0;
5742 compare_refs(const void *ref1_, const void *ref2_)
5744 const struct ref *ref1 = *(const struct ref **)ref1_;
5745 const struct ref *ref2 = *(const struct ref **)ref2_;
5747 if (ref1->tag != ref2->tag)
5748 return ref2->tag - ref1->tag;
5749 if (ref1->ltag != ref2->ltag)
5750 return ref2->ltag - ref2->ltag;
5751 if (ref1->head != ref2->head)
5752 return ref2->head - ref1->head;
5753 if (ref1->tracked != ref2->tracked)
5754 return ref2->tracked - ref1->tracked;
5755 if (ref1->remote != ref2->remote)
5756 return ref2->remote - ref1->remote;
5757 return strcmp(ref1->name, ref2->name);
5760 static struct ref **
5761 get_refs(const char *id)
5763 struct ref ***tmp_id_refs;
5764 struct ref **ref_list = NULL;
5765 size_t ref_list_alloc = 0;
5766 size_t ref_list_size = 0;
5769 for (i = 0; i < id_refs_size; i++)
5770 if (!strcmp(id, id_refs[i][0]->id))
5773 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
5778 id_refs = tmp_id_refs;
5780 for (i = 0; i < refs_size; i++) {
5783 if (strcmp(id, refs[i].id))
5786 tmp = realloc_items(ref_list, &ref_list_alloc,
5787 ref_list_size + 1, sizeof(*ref_list));
5795 ref_list[ref_list_size] = &refs[i];
5796 /* XXX: The properties of the commit chains ensures that we can
5797 * safely modify the shared ref. The repo references will
5798 * always be similar for the same id. */
5799 ref_list[ref_list_size]->next = 1;
5805 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
5806 ref_list[ref_list_size - 1]->next = 0;
5807 id_refs[id_refs_size++] = ref_list;
5814 read_ref(char *id, size_t idlen, char *name, size_t namelen)
5819 bool remote = FALSE;
5820 bool tracked = FALSE;
5821 bool check_replace = FALSE;
5824 if (!prefixcmp(name, "refs/tags/")) {
5825 if (!suffixcmp(name, namelen, "^{}")) {
5828 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
5829 check_replace = TRUE;
5835 namelen -= STRING_SIZE("refs/tags/");
5836 name += STRING_SIZE("refs/tags/");
5838 } else if (!prefixcmp(name, "refs/remotes/")) {
5840 namelen -= STRING_SIZE("refs/remotes/");
5841 name += STRING_SIZE("refs/remotes/");
5842 tracked = !strcmp(opt_remote, name);
5844 } else if (!prefixcmp(name, "refs/heads/")) {
5845 namelen -= STRING_SIZE("refs/heads/");
5846 name += STRING_SIZE("refs/heads/");
5847 head = !strncmp(opt_head, name, namelen);
5849 } else if (!strcmp(name, "HEAD")) {
5850 string_ncopy(opt_head_rev, id, idlen);
5854 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
5855 /* it's an annotated tag, replace the previous sha1 with the
5856 * resolved commit id; relies on the fact git-ls-remote lists
5857 * the commit id of an annotated tag right before the commit id
5859 refs[refs_size - 1].ltag = ltag;
5860 string_copy_rev(refs[refs_size - 1].id, id);
5864 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
5868 ref = &refs[refs_size++];
5869 ref->name = malloc(namelen + 1);
5873 strncpy(ref->name, name, namelen);
5874 ref->name[namelen] = 0;
5878 ref->remote = remote;
5879 ref->tracked = tracked;
5880 string_copy_rev(ref->id, id);
5888 const char *cmd_env = getenv("TIG_LS_REMOTE");
5889 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
5894 while (refs_size > 0)
5895 free(refs[--refs_size].name);
5896 while (id_refs_size > 0)
5897 free(id_refs[--id_refs_size]);
5899 return read_properties(popen(cmd, "r"), "\t", read_ref);
5903 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
5905 if (!strcmp(name, "i18n.commitencoding"))
5906 string_ncopy(opt_encoding, value, valuelen);
5908 if (!strcmp(name, "core.editor"))
5909 string_ncopy(opt_editor, value, valuelen);
5911 /* branch.<head>.remote */
5913 !strncmp(name, "branch.", 7) &&
5914 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5915 !strcmp(name + 7 + strlen(opt_head), ".remote"))
5916 string_ncopy(opt_remote, value, valuelen);
5918 if (*opt_head && *opt_remote &&
5919 !strncmp(name, "branch.", 7) &&
5920 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5921 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
5922 size_t from = strlen(opt_remote);
5924 if (!prefixcmp(value, "refs/heads/")) {
5925 value += STRING_SIZE("refs/heads/");
5926 valuelen -= STRING_SIZE("refs/heads/");
5929 if (!string_format_from(opt_remote, &from, "/%s", value))
5937 load_git_config(void)
5939 return read_properties(popen("git " GIT_CONFIG " --list", "r"),
5940 "=", read_repo_config_option);
5944 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
5946 if (!opt_git_dir[0]) {
5947 string_ncopy(opt_git_dir, name, namelen);
5949 } else if (opt_is_inside_work_tree == -1) {
5950 /* This can be 3 different values depending on the
5951 * version of git being used. If git-rev-parse does not
5952 * understand --is-inside-work-tree it will simply echo
5953 * the option else either "true" or "false" is printed.
5954 * Default to true for the unknown case. */
5955 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
5957 } else if (opt_cdup[0] == ' ') {
5958 string_ncopy(opt_cdup, name, namelen);
5960 if (!prefixcmp(name, "refs/heads/")) {
5961 namelen -= STRING_SIZE("refs/heads/");
5962 name += STRING_SIZE("refs/heads/");
5963 string_ncopy(opt_head, name, namelen);
5971 load_repo_info(void)
5974 FILE *pipe = popen("(git rev-parse --git-dir --is-inside-work-tree "
5975 " --show-cdup; git symbolic-ref HEAD) 2>/dev/null", "r");
5977 /* XXX: The line outputted by "--show-cdup" can be empty so
5978 * initialize it to something invalid to make it possible to
5979 * detect whether it has been set or not. */
5982 result = read_properties(pipe, "=", read_repo_info);
5983 if (opt_cdup[0] == ' ')
5990 read_properties(FILE *pipe, const char *separators,
5991 int (*read_property)(char *, size_t, char *, size_t))
5993 char buffer[BUFSIZ];
6000 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
6005 name = chomp_string(name);
6006 namelen = strcspn(name, separators);
6008 if (name[namelen]) {
6010 value = chomp_string(name + namelen + 1);
6011 valuelen = strlen(value);
6018 state = read_property(name, namelen, value, valuelen);
6021 if (state != ERR && ferror(pipe))
6034 static void __NORETURN
6037 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6043 static void __NORETURN
6044 die(const char *err, ...)
6050 va_start(args, err);
6051 fputs("tig: ", stderr);
6052 vfprintf(stderr, err, args);
6053 fputs("\n", stderr);
6060 warn(const char *msg, ...)
6064 va_start(args, msg);
6065 fputs("tig warning: ", stderr);
6066 vfprintf(stderr, msg, args);
6067 fputs("\n", stderr);
6072 main(int argc, const char *argv[])
6075 enum request request;
6078 signal(SIGINT, quit);
6080 if (setlocale(LC_ALL, "")) {
6081 char *codeset = nl_langinfo(CODESET);
6083 string_ncopy(opt_codeset, codeset, strlen(codeset));
6086 if (load_repo_info() == ERR)
6087 die("Failed to load repo info.");
6089 if (load_options() == ERR)
6090 die("Failed to load user config.");
6092 if (load_git_config() == ERR)
6093 die("Failed to load repo config.");
6095 request = parse_options(argc, argv);
6096 if (request == REQ_NONE)
6099 /* Require a git repository unless when running in pager mode. */
6100 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6101 die("Not a git repository");
6103 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6106 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6107 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6108 if (opt_iconv == ICONV_NONE)
6109 die("Failed to initialize character set conversion");
6112 if (load_refs() == ERR)
6113 die("Failed to load refs.");
6115 foreach_view (view, i)
6116 view->cmd_env = getenv(view->cmd_env);
6120 while (view_driver(display[current_view], request)) {
6124 foreach_view (view, i)
6126 view = display[current_view];
6128 /* Refresh, accept single keystroke of input */
6129 key = wgetch(status_win);
6131 /* wgetch() with nodelay() enabled returns ERR when there's no
6138 request = get_keybinding(view->keymap, key);
6140 /* Some low-level request handling. This keeps access to
6141 * status_win restricted. */
6145 char *cmd = read_prompt(":");
6147 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
6148 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
6149 request = REQ_VIEW_DIFF;
6151 request = REQ_VIEW_PAGER;
6154 /* Always reload^Wrerun commands from the prompt. */
6155 open_view(view, request, OPEN_RELOAD);
6162 case REQ_SEARCH_BACK:
6164 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6165 char *search = read_prompt(prompt);
6168 string_ncopy(opt_search, search, strlen(search));
6173 case REQ_SCREEN_RESIZE:
6177 getmaxyx(stdscr, height, width);
6179 /* Resize the status view and let the view driver take
6180 * care of resizing the displayed views. */
6181 wresize(status_win, 1, width);
6182 mvwin(status_win, height - 1, 0);
6183 wrefresh(status_win);