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)
500 parse_options(int argc, const char *argv[])
502 enum request request = REQ_VIEW_MAIN;
504 const char *subcommand;
505 bool seen_dashdash = FALSE;
508 if (!isatty(STDIN_FILENO)) {
510 return REQ_VIEW_PAGER;
514 return REQ_VIEW_MAIN;
516 subcommand = argv[1];
517 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
518 if (!strcmp(subcommand, "-S"))
519 warn("`-S' has been deprecated; use `tig status' instead");
521 warn("ignoring arguments after `%s'", subcommand);
522 return REQ_VIEW_STATUS;
524 } else if (!strcmp(subcommand, "blame")) {
525 if (argc <= 2 || argc > 4)
526 die("invalid number of options to blame\n\n%s", usage);
530 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
534 string_ncopy(opt_file, argv[i], strlen(argv[i]));
535 return REQ_VIEW_BLAME;
537 } else if (!strcmp(subcommand, "show")) {
538 request = REQ_VIEW_DIFF;
540 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
541 request = subcommand[0] == 'l' ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
542 warn("`tig %s' has been deprecated", subcommand);
549 /* XXX: This is vulnerable to the user overriding
550 * options required for the main view parser. */
551 string_copy(opt_cmd, TIG_MAIN_BASE);
553 string_format(opt_cmd, "git %s", subcommand);
555 buf_size = strlen(opt_cmd);
557 for (i = 1 + !!subcommand; i < argc; i++) {
558 const char *opt = argv[i];
560 if (seen_dashdash || !strcmp(opt, "--")) {
561 seen_dashdash = TRUE;
563 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
564 printf("tig version %s\n", TIG_VERSION);
567 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
568 printf("%s\n", usage);
572 opt_cmd[buf_size++] = ' ';
573 buf_size = sq_quote(opt_cmd, buf_size, opt);
574 if (buf_size >= sizeof(opt_cmd))
575 die("command too long");
578 opt_cmd[buf_size] = 0;
585 * Line-oriented content detection.
589 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
590 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
591 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
592 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
593 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
594 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
595 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
596 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
597 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
598 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
599 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
600 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
601 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
602 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
603 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
604 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
605 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
606 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
607 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
608 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
609 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
610 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
611 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
612 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
613 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
614 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
615 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
616 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
617 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
618 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
619 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
620 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
621 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
622 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
623 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
624 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
625 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
626 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
627 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
628 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
629 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
630 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
631 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
632 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
633 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
634 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
635 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
636 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
637 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
638 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
639 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
640 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
641 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
642 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
645 #define LINE(type, line, fg, bg, attr) \
653 const char *name; /* Option name. */
654 int namelen; /* Size of option name. */
655 const char *line; /* The start of line to match. */
656 int linelen; /* Size of string to match. */
657 int fg, bg, attr; /* Color and text attributes for the lines. */
660 static struct line_info line_info[] = {
661 #define LINE(type, line, fg, bg, attr) \
662 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
667 static enum line_type
668 get_line_type(const char *line)
670 int linelen = strlen(line);
673 for (type = 0; type < ARRAY_SIZE(line_info); type++)
674 /* Case insensitive search matches Signed-off-by lines better. */
675 if (linelen >= line_info[type].linelen &&
676 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
683 get_line_attr(enum line_type type)
685 assert(type < ARRAY_SIZE(line_info));
686 return COLOR_PAIR(type) | line_info[type].attr;
689 static struct line_info *
690 get_line_info(const char *name)
692 size_t namelen = strlen(name);
695 for (type = 0; type < ARRAY_SIZE(line_info); type++)
696 if (namelen == line_info[type].namelen &&
697 !string_enum_compare(line_info[type].name, name, namelen))
698 return &line_info[type];
706 int default_bg = line_info[LINE_DEFAULT].bg;
707 int default_fg = line_info[LINE_DEFAULT].fg;
712 if (assume_default_colors(default_fg, default_bg) == ERR) {
713 default_bg = COLOR_BLACK;
714 default_fg = COLOR_WHITE;
717 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
718 struct line_info *info = &line_info[type];
719 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
720 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
722 init_pair(type, fg, bg);
730 unsigned int selected:1;
731 unsigned int dirty:1;
733 void *data; /* User data */
743 enum request request;
744 struct keybinding *next;
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 static struct keybinding *keybindings[ARRAY_SIZE(keymap_table)];
846 add_keybinding(enum keymap keymap, enum request request, int key)
848 struct keybinding *keybinding;
850 keybinding = calloc(1, sizeof(*keybinding));
852 die("Failed to allocate keybinding");
854 keybinding->alias = key;
855 keybinding->request = request;
856 keybinding->next = keybindings[keymap];
857 keybindings[keymap] = keybinding;
860 /* Looks for a key binding first in the given map, then in the generic map, and
861 * lastly in the default keybindings. */
863 get_keybinding(enum keymap keymap, int key)
865 struct keybinding *kbd;
868 for (kbd = keybindings[keymap]; kbd; kbd = kbd->next)
869 if (kbd->alias == key)
872 for (kbd = keybindings[KEYMAP_GENERIC]; kbd; kbd = kbd->next)
873 if (kbd->alias == key)
876 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
877 if (default_keybindings[i].alias == key)
878 return default_keybindings[i].request;
880 return (enum request) key;
889 static struct key key_table[] = {
890 { "Enter", KEY_RETURN },
892 { "Backspace", KEY_BACKSPACE },
894 { "Escape", KEY_ESC },
895 { "Left", KEY_LEFT },
896 { "Right", KEY_RIGHT },
898 { "Down", KEY_DOWN },
899 { "Insert", KEY_IC },
900 { "Delete", KEY_DC },
902 { "Home", KEY_HOME },
904 { "PageUp", KEY_PPAGE },
905 { "PageDown", KEY_NPAGE },
915 { "F10", KEY_F(10) },
916 { "F11", KEY_F(11) },
917 { "F12", KEY_F(12) },
921 get_key_value(const char *name)
925 for (i = 0; i < ARRAY_SIZE(key_table); i++)
926 if (!strcasecmp(key_table[i].name, name))
927 return key_table[i].value;
929 if (strlen(name) == 1 && isprint(*name))
936 get_key_name(int key_value)
938 static char key_char[] = "'X'";
939 const char *seq = NULL;
942 for (key = 0; key < ARRAY_SIZE(key_table); key++)
943 if (key_table[key].value == key_value)
944 seq = key_table[key].name;
948 isprint(key_value)) {
949 key_char[1] = (char) key_value;
953 return seq ? seq : "(no key)";
957 get_key(enum request request)
959 static char buf[BUFSIZ];
966 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
967 struct keybinding *keybinding = &default_keybindings[i];
969 if (keybinding->request != request)
972 if (!string_format_from(buf, &pos, "%s%s", sep,
973 get_key_name(keybinding->alias)))
974 return "Too many keybindings!";
984 char cmd[SIZEOF_STR];
987 static struct run_request *run_request;
988 static size_t run_requests;
991 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
993 struct run_request *req;
994 char cmd[SIZEOF_STR];
997 for (bufpos = 0; argc > 0; argc--, argv++)
998 if (!string_format_from(cmd, &bufpos, "%s ", *argv))
1001 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1006 req = &run_request[run_requests++];
1007 string_copy(req->cmd, cmd);
1008 req->keymap = keymap;
1011 return REQ_NONE + run_requests;
1014 static struct run_request *
1015 get_run_request(enum request request)
1017 if (request <= REQ_NONE)
1019 return &run_request[request - REQ_NONE - 1];
1023 add_builtin_run_requests(void)
1028 const char *argv[1];
1030 { KEYMAP_MAIN, 'C', { "git cherry-pick %(commit)" } },
1031 { KEYMAP_GENERIC, 'G', { "git gc" } },
1035 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1038 req = add_run_request(reqs[i].keymap, reqs[i].key, 1, reqs[i].argv);
1039 if (req != REQ_NONE)
1040 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1045 * User config file handling.
1048 static struct int_map color_map[] = {
1049 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1061 #define set_color(color, name) \
1062 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1064 static struct int_map attr_map[] = {
1065 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1072 ATTR_MAP(UNDERLINE),
1075 #define set_attribute(attr, name) \
1076 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1078 static int config_lineno;
1079 static bool config_errors;
1080 static const char *config_msg;
1082 /* Wants: object fgcolor bgcolor [attr] */
1084 option_color_command(int argc, const char *argv[])
1086 struct line_info *info;
1088 if (argc != 3 && argc != 4) {
1089 config_msg = "Wrong number of arguments given to color command";
1093 info = get_line_info(argv[0]);
1095 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1096 info = get_line_info("delimiter");
1098 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1099 info = get_line_info("date");
1102 config_msg = "Unknown color name";
1107 if (set_color(&info->fg, argv[1]) == ERR ||
1108 set_color(&info->bg, argv[2]) == ERR) {
1109 config_msg = "Unknown color";
1113 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1114 config_msg = "Unknown attribute";
1121 static bool parse_bool(const char *s)
1123 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1124 !strcmp(s, "yes")) ? TRUE : FALSE;
1128 parse_int(const char *s, int default_value, int min, int max)
1130 int value = atoi(s);
1132 return (value < min || value > max) ? default_value : value;
1135 /* Wants: name = value */
1137 option_set_command(int argc, const char *argv[])
1140 config_msg = "Wrong number of arguments given to set command";
1144 if (strcmp(argv[1], "=")) {
1145 config_msg = "No value assigned";
1149 if (!strcmp(argv[0], "show-author")) {
1150 opt_author = parse_bool(argv[2]);
1154 if (!strcmp(argv[0], "show-date")) {
1155 opt_date = parse_bool(argv[2]);
1159 if (!strcmp(argv[0], "show-rev-graph")) {
1160 opt_rev_graph = parse_bool(argv[2]);
1164 if (!strcmp(argv[0], "show-refs")) {
1165 opt_show_refs = parse_bool(argv[2]);
1169 if (!strcmp(argv[0], "show-line-numbers")) {
1170 opt_line_number = parse_bool(argv[2]);
1174 if (!strcmp(argv[0], "line-graphics")) {
1175 opt_line_graphics = parse_bool(argv[2]);
1179 if (!strcmp(argv[0], "line-number-interval")) {
1180 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1184 if (!strcmp(argv[0], "author-width")) {
1185 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1189 if (!strcmp(argv[0], "tab-size")) {
1190 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1194 if (!strcmp(argv[0], "commit-encoding")) {
1195 const char *arg = argv[2];
1196 int arglen = strlen(arg);
1201 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1202 config_msg = "Unmatched quotation";
1205 arg += 1; arglen -= 2;
1207 string_ncopy(opt_encoding, arg, strlen(arg));
1212 config_msg = "Unknown variable name";
1216 /* Wants: mode request key */
1218 option_bind_command(int argc, const char *argv[])
1220 enum request request;
1225 config_msg = "Wrong number of arguments given to bind command";
1229 if (set_keymap(&keymap, argv[0]) == ERR) {
1230 config_msg = "Unknown key map";
1234 key = get_key_value(argv[1]);
1236 config_msg = "Unknown key";
1240 request = get_request(argv[2]);
1241 if (request == REQ_NONE) {
1242 const char *obsolete[] = { "cherry-pick" };
1243 size_t namelen = strlen(argv[2]);
1246 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1247 if (namelen == strlen(obsolete[i]) &&
1248 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1249 config_msg = "Obsolete request name";
1254 if (request == REQ_NONE && *argv[2]++ == '!')
1255 request = add_run_request(keymap, key, argc - 2, argv + 2);
1256 if (request == REQ_NONE) {
1257 config_msg = "Unknown request name";
1261 add_keybinding(keymap, request, key);
1267 set_option(const char *opt, char *value)
1269 const char *argv[SIZEOF_ARG];
1274 while (argc < ARRAY_SIZE(argv) && (valuelen = strcspn(value, " \t"))) {
1275 argv[argc++] = value;
1278 /* Nothing more to tokenize or last available token. */
1279 if (!*value || argc >= ARRAY_SIZE(argv))
1283 while (isspace(*value))
1287 if (!strcmp(opt, "color"))
1288 return option_color_command(argc, argv);
1290 if (!strcmp(opt, "set"))
1291 return option_set_command(argc, argv);
1293 if (!strcmp(opt, "bind"))
1294 return option_bind_command(argc, argv);
1296 config_msg = "Unknown option command";
1301 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1306 config_msg = "Internal error";
1308 /* Check for comment markers, since read_properties() will
1309 * only ensure opt and value are split at first " \t". */
1310 optlen = strcspn(opt, "#");
1314 if (opt[optlen] != 0) {
1315 config_msg = "No option value";
1319 /* Look for comment endings in the value. */
1320 size_t len = strcspn(value, "#");
1322 if (len < valuelen) {
1324 value[valuelen] = 0;
1327 status = set_option(opt, value);
1330 if (status == ERR) {
1331 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1332 config_lineno, (int) optlen, opt, config_msg);
1333 config_errors = TRUE;
1336 /* Always keep going if errors are encountered. */
1341 load_option_file(const char *path)
1345 /* It's ok that the file doesn't exist. */
1346 file = fopen(path, "r");
1351 config_errors = FALSE;
1353 if (read_properties(file, " \t", read_option) == ERR ||
1354 config_errors == TRUE)
1355 fprintf(stderr, "Errors while loading %s.\n", path);
1361 const char *home = getenv("HOME");
1362 const char *tigrc_user = getenv("TIGRC_USER");
1363 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1364 char buf[SIZEOF_STR];
1366 add_builtin_run_requests();
1368 if (!tigrc_system) {
1369 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1373 load_option_file(tigrc_system);
1376 if (!home || !string_format(buf, "%s/.tigrc", home))
1380 load_option_file(tigrc_user);
1393 /* The display array of active views and the index of the current view. */
1394 static struct view *display[2];
1395 static unsigned int current_view;
1397 /* Reading from the prompt? */
1398 static bool input_mode = FALSE;
1400 #define foreach_displayed_view(view, i) \
1401 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1403 #define displayed_views() (display[1] != NULL ? 2 : 1)
1405 /* Current head and commit ID */
1406 static char ref_blob[SIZEOF_REF] = "";
1407 static char ref_commit[SIZEOF_REF] = "HEAD";
1408 static char ref_head[SIZEOF_REF] = "HEAD";
1411 const char *name; /* View name */
1412 const char *cmd_fmt; /* Default command line format */
1413 const char *cmd_env; /* Command line set via environment */
1414 const char *id; /* Points to either of ref_{head,commit,blob} */
1416 struct view_ops *ops; /* View operations */
1418 enum keymap keymap; /* What keymap does this view have */
1419 bool git_dir; /* Whether the view requires a git directory. */
1421 char cmd[SIZEOF_STR]; /* Command buffer */
1422 char ref[SIZEOF_REF]; /* Hovered commit reference */
1423 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1425 int height, width; /* The width and height of the main window */
1426 WINDOW *win; /* The main window */
1427 WINDOW *title; /* The title window living below the main window */
1430 unsigned long offset; /* Offset of the window top */
1431 unsigned long lineno; /* Current line number */
1434 char grep[SIZEOF_STR]; /* Search string */
1435 regex_t *regex; /* Pre-compiled regex */
1437 /* If non-NULL, points to the view that opened this view. If this view
1438 * is closed tig will switch back to the parent view. */
1439 struct view *parent;
1442 size_t lines; /* Total number of lines */
1443 struct line *line; /* Line index */
1444 size_t line_alloc; /* Total number of allocated lines */
1445 size_t line_size; /* Total number of used lines */
1446 unsigned int digits; /* Number of digits in the lines member. */
1449 struct line *curline; /* Line currently being drawn. */
1450 enum line_type curtype; /* Attribute currently used for drawing. */
1451 unsigned long col; /* Column when drawing. */
1459 /* What type of content being displayed. Used in the title bar. */
1461 /* Open and reads in all view content. */
1462 bool (*open)(struct view *view);
1463 /* Read one line; updates view->line. */
1464 bool (*read)(struct view *view, char *data);
1465 /* Draw one line; @lineno must be < view->height. */
1466 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1467 /* Depending on view handle a special requests. */
1468 enum request (*request)(struct view *view, enum request request, struct line *line);
1469 /* Search for regex in a line. */
1470 bool (*grep)(struct view *view, struct line *line);
1472 void (*select)(struct view *view, struct line *line);
1475 static struct view_ops blame_ops;
1476 static struct view_ops blob_ops;
1477 static struct view_ops help_ops;
1478 static struct view_ops log_ops;
1479 static struct view_ops main_ops;
1480 static struct view_ops pager_ops;
1481 static struct view_ops stage_ops;
1482 static struct view_ops status_ops;
1483 static struct view_ops tree_ops;
1485 #define VIEW_STR(name, cmd, env, ref, ops, map, git) \
1486 { name, cmd, #env, ref, ops, map, git }
1488 #define VIEW_(id, name, ops, git, ref) \
1489 VIEW_STR(name, TIG_##id##_CMD, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1492 static struct view views[] = {
1493 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1494 VIEW_(DIFF, "diff", &pager_ops, TRUE, ref_commit),
1495 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1496 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1497 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1498 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1499 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1500 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1501 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1502 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1505 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1506 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1508 #define foreach_view(view, i) \
1509 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1511 #define view_is_displayed(view) \
1512 (view == display[0] || view == display[1])
1519 static int line_graphics[] = {
1520 /* LINE_GRAPHIC_VLINE: */ '|'
1524 set_view_attr(struct view *view, enum line_type type)
1526 if (!view->curline->selected && view->curtype != type) {
1527 wattrset(view->win, get_line_attr(type));
1528 wchgat(view->win, -1, 0, type, NULL);
1529 view->curtype = type;
1534 draw_chars(struct view *view, enum line_type type, const char *string,
1535 int max_len, bool use_tilde)
1539 int trimmed = FALSE;
1545 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1547 col = len = strlen(string);
1548 if (len > max_len) {
1552 col = len = max_len;
1557 set_view_attr(view, type);
1558 waddnstr(view->win, string, len);
1559 if (trimmed && use_tilde) {
1560 set_view_attr(view, LINE_DELIMITER);
1561 waddch(view->win, '~');
1569 draw_space(struct view *view, enum line_type type, int max, int spaces)
1571 static char space[] = " ";
1574 spaces = MIN(max, spaces);
1576 while (spaces > 0) {
1577 int len = MIN(spaces, sizeof(space) - 1);
1579 col += draw_chars(view, type, space, spaces, FALSE);
1587 draw_lineno(struct view *view, unsigned int lineno)
1590 int digits3 = view->digits < 3 ? 3 : view->digits;
1591 int max_number = MIN(digits3, STRING_SIZE(number));
1592 int max = view->width - view->col;
1595 if (max < max_number)
1598 lineno += view->offset + 1;
1599 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1600 static char fmt[] = "%1ld";
1602 if (view->digits <= 9)
1603 fmt[1] = '0' + digits3;
1605 if (!string_format(number, fmt, lineno))
1607 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1609 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1613 set_view_attr(view, LINE_DEFAULT);
1614 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1619 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1622 return view->width - view->col <= 0;
1626 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1628 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1629 return view->width - view->col <= 0;
1633 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1635 int max = view->width - view->col;
1641 set_view_attr(view, type);
1642 /* Using waddch() instead of waddnstr() ensures that
1643 * they'll be rendered correctly for the cursor line. */
1644 for (i = 0; i < size; i++)
1645 waddch(view->win, graphic[i]);
1649 waddch(view->win, ' ');
1653 return view->width - view->col <= 0;
1657 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1659 int max = MIN(view->width - view->col, len);
1663 col = draw_chars(view, type, text, max - 1, trim);
1665 col = draw_space(view, type, max - 1, max - 1);
1667 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1668 return view->width - view->col <= 0;
1672 draw_date(struct view *view, struct tm *time)
1674 char buf[DATE_COLS];
1679 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1680 date = timelen ? buf : NULL;
1682 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1686 draw_view_line(struct view *view, unsigned int lineno)
1689 bool selected = (view->offset + lineno == view->lineno);
1692 assert(view_is_displayed(view));
1694 if (view->offset + lineno >= view->lines)
1697 line = &view->line[view->offset + lineno];
1699 wmove(view->win, lineno, 0);
1701 view->curline = line;
1702 view->curtype = LINE_NONE;
1703 line->selected = FALSE;
1706 set_view_attr(view, LINE_CURSOR);
1707 line->selected = TRUE;
1708 view->ops->select(view, line);
1709 } else if (line->selected) {
1710 wclrtoeol(view->win);
1713 scrollok(view->win, FALSE);
1714 draw_ok = view->ops->draw(view, line, lineno);
1715 scrollok(view->win, TRUE);
1721 redraw_view_dirty(struct view *view)
1726 for (lineno = 0; lineno < view->height; lineno++) {
1727 struct line *line = &view->line[view->offset + lineno];
1733 if (!draw_view_line(view, lineno))
1739 redrawwin(view->win);
1741 wnoutrefresh(view->win);
1743 wrefresh(view->win);
1747 redraw_view_from(struct view *view, int lineno)
1749 assert(0 <= lineno && lineno < view->height);
1751 for (; lineno < view->height; lineno++) {
1752 if (!draw_view_line(view, lineno))
1756 redrawwin(view->win);
1758 wnoutrefresh(view->win);
1760 wrefresh(view->win);
1764 redraw_view(struct view *view)
1767 redraw_view_from(view, 0);
1772 update_view_title(struct view *view)
1774 char buf[SIZEOF_STR];
1775 char state[SIZEOF_STR];
1776 size_t bufpos = 0, statelen = 0;
1778 assert(view_is_displayed(view));
1780 if (view != VIEW(REQ_VIEW_STATUS) && (view->lines || view->pipe)) {
1781 unsigned int view_lines = view->offset + view->height;
1782 unsigned int lines = view->lines
1783 ? MIN(view_lines, view->lines) * 100 / view->lines
1786 string_format_from(state, &statelen, "- %s %d of %d (%d%%)",
1793 time_t secs = time(NULL) - view->start_time;
1795 /* Three git seconds are a long time ... */
1797 string_format_from(state, &statelen, " %lds", secs);
1801 string_format_from(buf, &bufpos, "[%s]", view->name);
1802 if (*view->ref && bufpos < view->width) {
1803 size_t refsize = strlen(view->ref);
1804 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
1806 if (minsize < view->width)
1807 refsize = view->width - minsize + 7;
1808 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
1811 if (statelen && bufpos < view->width) {
1812 string_format_from(buf, &bufpos, " %s", state);
1815 if (view == display[current_view])
1816 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
1818 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
1820 mvwaddnstr(view->title, 0, 0, buf, bufpos);
1821 wclrtoeol(view->title);
1822 wmove(view->title, 0, view->width - 1);
1825 wnoutrefresh(view->title);
1827 wrefresh(view->title);
1831 resize_display(void)
1834 struct view *base = display[0];
1835 struct view *view = display[1] ? display[1] : display[0];
1837 /* Setup window dimensions */
1839 getmaxyx(stdscr, base->height, base->width);
1841 /* Make room for the status window. */
1845 /* Horizontal split. */
1846 view->width = base->width;
1847 view->height = SCALE_SPLIT_VIEW(base->height);
1848 base->height -= view->height;
1850 /* Make room for the title bar. */
1854 /* Make room for the title bar. */
1859 foreach_displayed_view (view, i) {
1861 view->win = newwin(view->height, 0, offset, 0);
1863 die("Failed to create %s view", view->name);
1865 scrollok(view->win, TRUE);
1867 view->title = newwin(1, 0, offset + view->height, 0);
1869 die("Failed to create title window");
1872 wresize(view->win, view->height, view->width);
1873 mvwin(view->win, offset, 0);
1874 mvwin(view->title, offset + view->height, 0);
1877 offset += view->height + 1;
1882 redraw_display(void)
1887 foreach_displayed_view (view, i) {
1889 update_view_title(view);
1894 update_display_cursor(struct view *view)
1896 /* Move the cursor to the right-most column of the cursor line.
1898 * XXX: This could turn out to be a bit expensive, but it ensures that
1899 * the cursor does not jump around. */
1901 wmove(view->win, view->lineno - view->offset, view->width - 1);
1902 wrefresh(view->win);
1910 /* Scrolling backend */
1912 do_scroll_view(struct view *view, int lines)
1914 bool redraw_current_line = FALSE;
1916 /* The rendering expects the new offset. */
1917 view->offset += lines;
1919 assert(0 <= view->offset && view->offset < view->lines);
1922 /* Move current line into the view. */
1923 if (view->lineno < view->offset) {
1924 view->lineno = view->offset;
1925 redraw_current_line = TRUE;
1926 } else if (view->lineno >= view->offset + view->height) {
1927 view->lineno = view->offset + view->height - 1;
1928 redraw_current_line = TRUE;
1931 assert(view->offset <= view->lineno && view->lineno < view->lines);
1933 /* Redraw the whole screen if scrolling is pointless. */
1934 if (view->height < ABS(lines)) {
1938 int line = lines > 0 ? view->height - lines : 0;
1939 int end = line + ABS(lines);
1941 wscrl(view->win, lines);
1943 for (; line < end; line++) {
1944 if (!draw_view_line(view, line))
1948 if (redraw_current_line)
1949 draw_view_line(view, view->lineno - view->offset);
1952 redrawwin(view->win);
1953 wrefresh(view->win);
1957 /* Scroll frontend */
1959 scroll_view(struct view *view, enum request request)
1963 assert(view_is_displayed(view));
1966 case REQ_SCROLL_PAGE_DOWN:
1967 lines = view->height;
1968 case REQ_SCROLL_LINE_DOWN:
1969 if (view->offset + lines > view->lines)
1970 lines = view->lines - view->offset;
1972 if (lines == 0 || view->offset + view->height >= view->lines) {
1973 report("Cannot scroll beyond the last line");
1978 case REQ_SCROLL_PAGE_UP:
1979 lines = view->height;
1980 case REQ_SCROLL_LINE_UP:
1981 if (lines > view->offset)
1982 lines = view->offset;
1985 report("Cannot scroll beyond the first line");
1993 die("request %d not handled in switch", request);
1996 do_scroll_view(view, lines);
2001 move_view(struct view *view, enum request request)
2003 int scroll_steps = 0;
2007 case REQ_MOVE_FIRST_LINE:
2008 steps = -view->lineno;
2011 case REQ_MOVE_LAST_LINE:
2012 steps = view->lines - view->lineno - 1;
2015 case REQ_MOVE_PAGE_UP:
2016 steps = view->height > view->lineno
2017 ? -view->lineno : -view->height;
2020 case REQ_MOVE_PAGE_DOWN:
2021 steps = view->lineno + view->height >= view->lines
2022 ? view->lines - view->lineno - 1 : view->height;
2034 die("request %d not handled in switch", request);
2037 if (steps <= 0 && view->lineno == 0) {
2038 report("Cannot move beyond the first line");
2041 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2042 report("Cannot move beyond the last line");
2046 /* Move the current line */
2047 view->lineno += steps;
2048 assert(0 <= view->lineno && view->lineno < view->lines);
2050 /* Check whether the view needs to be scrolled */
2051 if (view->lineno < view->offset ||
2052 view->lineno >= view->offset + view->height) {
2053 scroll_steps = steps;
2054 if (steps < 0 && -steps > view->offset) {
2055 scroll_steps = -view->offset;
2057 } else if (steps > 0) {
2058 if (view->lineno == view->lines - 1 &&
2059 view->lines > view->height) {
2060 scroll_steps = view->lines - view->offset - 1;
2061 if (scroll_steps >= view->height)
2062 scroll_steps -= view->height - 1;
2067 if (!view_is_displayed(view)) {
2068 view->offset += scroll_steps;
2069 assert(0 <= view->offset && view->offset < view->lines);
2070 view->ops->select(view, &view->line[view->lineno]);
2074 /* Repaint the old "current" line if we be scrolling */
2075 if (ABS(steps) < view->height)
2076 draw_view_line(view, view->lineno - steps - view->offset);
2079 do_scroll_view(view, scroll_steps);
2083 /* Draw the current line */
2084 draw_view_line(view, view->lineno - view->offset);
2086 redrawwin(view->win);
2087 wrefresh(view->win);
2096 static void search_view(struct view *view, enum request request);
2099 find_next_line(struct view *view, unsigned long lineno, struct line *line)
2101 assert(view_is_displayed(view));
2103 if (!view->ops->grep(view, line))
2106 if (lineno - view->offset >= view->height) {
2107 view->offset = lineno;
2108 view->lineno = lineno;
2112 unsigned long old_lineno = view->lineno - view->offset;
2114 view->lineno = lineno;
2115 draw_view_line(view, old_lineno);
2117 draw_view_line(view, view->lineno - view->offset);
2118 redrawwin(view->win);
2119 wrefresh(view->win);
2122 report("Line %ld matches '%s'", lineno + 1, view->grep);
2127 find_next(struct view *view, enum request request)
2129 unsigned long lineno = view->lineno;
2134 report("No previous search");
2136 search_view(view, request);
2146 case REQ_SEARCH_BACK:
2155 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2156 lineno += direction;
2158 /* Note, lineno is unsigned long so will wrap around in which case it
2159 * will become bigger than view->lines. */
2160 for (; lineno < view->lines; lineno += direction) {
2161 struct line *line = &view->line[lineno];
2163 if (find_next_line(view, lineno, line))
2167 report("No match found for '%s'", view->grep);
2171 search_view(struct view *view, enum request request)
2176 regfree(view->regex);
2179 view->regex = calloc(1, sizeof(*view->regex));
2184 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2185 if (regex_err != 0) {
2186 char buf[SIZEOF_STR] = "unknown error";
2188 regerror(regex_err, view->regex, buf, sizeof(buf));
2189 report("Search failed: %s", buf);
2193 string_copy(view->grep, opt_search);
2195 find_next(view, request);
2199 * Incremental updating
2203 reset_view(struct view *view)
2207 for (i = 0; i < view->lines; i++)
2208 free(view->line[i].data);
2215 view->line_size = 0;
2216 view->line_alloc = 0;
2221 end_update(struct view *view, bool force)
2225 while (!view->ops->read(view, NULL))
2228 set_nonblocking_input(FALSE);
2229 if (view->pipe == stdin)
2237 begin_update(struct view *view, bool refresh)
2240 string_copy(view->cmd, opt_cmd);
2242 /* When running random commands, initially show the
2243 * command in the title. However, it maybe later be
2244 * overwritten if a commit line is selected. */
2245 if (view == VIEW(REQ_VIEW_PAGER))
2246 string_copy(view->ref, view->cmd);
2250 } else if (view == VIEW(REQ_VIEW_TREE)) {
2251 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2252 char path[SIZEOF_STR];
2254 if (strcmp(view->vid, view->id))
2255 opt_path[0] = path[0] = 0;
2256 else if (sq_quote(path, 0, opt_path) >= sizeof(path))
2259 if (!string_format(view->cmd, format, view->id, path))
2262 } else if (!refresh) {
2263 const char *format = view->cmd_env ? view->cmd_env : view->cmd_fmt;
2264 const char *id = view->id;
2266 if (!string_format(view->cmd, format, id, id, id, id, id))
2269 /* Put the current ref_* value to the view title ref
2270 * member. This is needed by the blob view. Most other
2271 * views sets it automatically after loading because the
2272 * first line is a commit line. */
2273 string_copy_rev(view->ref, view->id);
2276 /* Special case for the pager view. */
2278 view->pipe = opt_pipe;
2281 view->pipe = popen(view->cmd, "r");
2287 set_nonblocking_input(TRUE);
2289 string_copy_rev(view->vid, view->id);
2291 view->start_time = time(NULL);
2296 #define ITEM_CHUNK_SIZE 256
2298 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2300 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2301 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2303 if (mem == NULL || num_chunks != num_chunks_new) {
2304 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2305 mem = realloc(mem, *size * item_size);
2311 static struct line *
2312 realloc_lines(struct view *view, size_t line_size)
2314 size_t alloc = view->line_alloc;
2315 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2316 sizeof(*view->line));
2322 view->line_alloc = alloc;
2323 view->line_size = line_size;
2328 update_view(struct view *view)
2330 char in_buffer[BUFSIZ];
2331 char out_buffer[BUFSIZ * 2];
2333 /* The number of lines to read. If too low it will cause too much
2334 * redrawing (and possible flickering), if too high responsiveness
2336 unsigned long lines = view->height;
2337 int redraw_from = -1;
2342 /* Only redraw if lines are visible. */
2343 if (view->offset + view->height >= view->lines)
2344 redraw_from = view->lines - view->offset;
2346 /* FIXME: This is probably not perfect for backgrounded views. */
2347 if (!realloc_lines(view, view->lines + lines))
2350 while ((line = fgets(in_buffer, sizeof(in_buffer), view->pipe))) {
2351 size_t linelen = strlen(line);
2354 line[linelen - 1] = 0;
2356 if (opt_iconv != ICONV_NONE) {
2357 ICONV_CONST char *inbuf = line;
2358 size_t inlen = linelen;
2360 char *outbuf = out_buffer;
2361 size_t outlen = sizeof(out_buffer);
2365 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2366 if (ret != (size_t) -1) {
2368 linelen = strlen(out_buffer);
2372 if (!view->ops->read(view, line))
2382 lines = view->lines;
2383 for (digits = 0; lines; digits++)
2386 /* Keep the displayed view in sync with line number scaling. */
2387 if (digits != view->digits) {
2388 view->digits = digits;
2393 if (ferror(view->pipe) && errno != 0) {
2394 report("Failed to read: %s", strerror(errno));
2395 end_update(view, TRUE);
2397 } else if (feof(view->pipe)) {
2399 end_update(view, FALSE);
2402 if (view == VIEW(REQ_VIEW_TREE)) {
2403 /* Clear the view and redraw everything since the tree sorting
2404 * might have rearranged things. */
2407 } else if (redraw_from >= 0) {
2408 /* If this is an incremental update, redraw the previous line
2409 * since for commits some members could have changed when
2410 * loading the main view. */
2411 if (redraw_from > 0)
2414 /* Since revision graph visualization requires knowledge
2415 * about the parent commit, it causes a further one-off
2416 * needed to be redrawn for incremental updates. */
2417 if (redraw_from > 0 && opt_rev_graph)
2420 /* Incrementally draw avoids flickering. */
2421 redraw_view_from(view, redraw_from);
2424 if (view == VIEW(REQ_VIEW_BLAME))
2425 redraw_view_dirty(view);
2427 /* Update the title _after_ the redraw so that if the redraw picks up a
2428 * commit reference in view->ref it'll be available here. */
2429 update_view_title(view);
2433 report("Allocation failure");
2434 end_update(view, TRUE);
2438 static struct line *
2439 add_line_data(struct view *view, void *data, enum line_type type)
2441 struct line *line = &view->line[view->lines++];
2443 memset(line, 0, sizeof(*line));
2450 static struct line *
2451 add_line_text(struct view *view, const char *text, enum line_type type)
2453 char *data = text ? strdup(text) : NULL;
2455 return data ? add_line_data(view, data, type) : NULL;
2464 OPEN_DEFAULT = 0, /* Use default view switching. */
2465 OPEN_SPLIT = 1, /* Split current view. */
2466 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2467 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2468 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2469 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2473 open_view(struct view *prev, enum request request, enum open_flags flags)
2475 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2476 bool split = !!(flags & OPEN_SPLIT);
2477 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH));
2478 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2479 struct view *view = VIEW(request);
2480 int nviews = displayed_views();
2481 struct view *base_view = display[0];
2483 if (view == prev && nviews == 1 && !reload) {
2484 report("Already in %s view", view->name);
2488 if (view->git_dir && !opt_git_dir[0]) {
2489 report("The %s view is disabled in pager view", view->name);
2497 } else if (!nomaximize) {
2498 /* Maximize the current view. */
2499 memset(display, 0, sizeof(display));
2501 display[current_view] = view;
2504 /* Resize the view when switching between split- and full-screen,
2505 * or when switching between two different full-screen views. */
2506 if (nviews != displayed_views() ||
2507 (nviews == 1 && base_view != display[0]))
2511 end_update(view, TRUE);
2513 if (view->ops->open) {
2514 if (!view->ops->open(view)) {
2515 report("Failed to load %s view", view->name);
2519 } else if ((reload || strcmp(view->vid, view->id)) &&
2520 !begin_update(view, flags & OPEN_REFRESH)) {
2521 report("Failed to load %s view", view->name);
2525 if (split && prev->lineno - prev->offset >= prev->height) {
2526 /* Take the title line into account. */
2527 int lines = prev->lineno - prev->offset - prev->height + 1;
2529 /* Scroll the view that was split if the current line is
2530 * outside the new limited view. */
2531 do_scroll_view(prev, lines);
2534 if (prev && view != prev) {
2535 if (split && !backgrounded) {
2536 /* "Blur" the previous view. */
2537 update_view_title(prev);
2540 view->parent = prev;
2543 if (view->pipe && view->lines == 0) {
2544 /* Clear the old view and let the incremental updating refill
2548 } else if (view_is_displayed(view)) {
2553 /* If the view is backgrounded the above calls to report()
2554 * won't redraw the view title. */
2556 update_view_title(view);
2560 run_confirm(const char *cmd, const char *prompt)
2562 bool confirmation = prompt_yesno(prompt);
2567 return confirmation;
2571 open_external_viewer(const char *cmd)
2573 def_prog_mode(); /* save current tty modes */
2574 endwin(); /* restore original tty modes */
2576 fprintf(stderr, "Press Enter to continue");
2583 open_mergetool(const char *file)
2585 char cmd[SIZEOF_STR];
2586 char file_sq[SIZEOF_STR];
2588 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2589 string_format(cmd, "git mergetool %s", file_sq)) {
2590 open_external_viewer(cmd);
2595 open_editor(bool from_root, const char *file)
2597 char cmd[SIZEOF_STR];
2598 char file_sq[SIZEOF_STR];
2600 char *prefix = from_root ? opt_cdup : "";
2602 editor = getenv("GIT_EDITOR");
2603 if (!editor && *opt_editor)
2604 editor = opt_editor;
2606 editor = getenv("VISUAL");
2608 editor = getenv("EDITOR");
2612 if (sq_quote(file_sq, 0, file) < sizeof(file_sq) &&
2613 string_format(cmd, "%s %s%s", editor, prefix, file_sq)) {
2614 open_external_viewer(cmd);
2619 open_run_request(enum request request)
2621 struct run_request *req = get_run_request(request);
2622 char buf[SIZEOF_STR * 2];
2627 report("Unknown run request");
2635 char *next = strstr(cmd, "%(");
2636 int len = next - cmd;
2643 } else if (!strncmp(next, "%(head)", 7)) {
2646 } else if (!strncmp(next, "%(commit)", 9)) {
2649 } else if (!strncmp(next, "%(blob)", 7)) {
2653 report("Unknown replacement in run request: `%s`", req->cmd);
2657 if (!string_format_from(buf, &bufpos, "%.*s%s", len, cmd, value))
2661 next = strchr(next, ')') + 1;
2665 open_external_viewer(buf);
2669 * User request switch noodle
2673 view_driver(struct view *view, enum request request)
2677 if (request == REQ_NONE) {
2682 if (request > REQ_NONE) {
2683 open_run_request(request);
2684 /* FIXME: When all views can refresh always do this. */
2685 if (view == VIEW(REQ_VIEW_STATUS) ||
2686 view == VIEW(REQ_VIEW_MAIN) ||
2687 view == VIEW(REQ_VIEW_LOG) ||
2688 view == VIEW(REQ_VIEW_STAGE))
2689 request = REQ_REFRESH;
2694 if (view && view->lines) {
2695 request = view->ops->request(view, request, &view->line[view->lineno]);
2696 if (request == REQ_NONE)
2703 case REQ_MOVE_PAGE_UP:
2704 case REQ_MOVE_PAGE_DOWN:
2705 case REQ_MOVE_FIRST_LINE:
2706 case REQ_MOVE_LAST_LINE:
2707 move_view(view, request);
2710 case REQ_SCROLL_LINE_DOWN:
2711 case REQ_SCROLL_LINE_UP:
2712 case REQ_SCROLL_PAGE_DOWN:
2713 case REQ_SCROLL_PAGE_UP:
2714 scroll_view(view, request);
2717 case REQ_VIEW_BLAME:
2719 report("No file chosen, press %s to open tree view",
2720 get_key(REQ_VIEW_TREE));
2723 open_view(view, request, OPEN_DEFAULT);
2728 report("No file chosen, press %s to open tree view",
2729 get_key(REQ_VIEW_TREE));
2732 open_view(view, request, OPEN_DEFAULT);
2735 case REQ_VIEW_PAGER:
2736 if (!opt_pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
2737 report("No pager content, press %s to run command from prompt",
2738 get_key(REQ_PROMPT));
2741 open_view(view, request, OPEN_DEFAULT);
2744 case REQ_VIEW_STAGE:
2745 if (!VIEW(REQ_VIEW_STAGE)->lines) {
2746 report("No stage content, press %s to open the status view and choose file",
2747 get_key(REQ_VIEW_STATUS));
2750 open_view(view, request, OPEN_DEFAULT);
2753 case REQ_VIEW_STATUS:
2754 if (opt_is_inside_work_tree == FALSE) {
2755 report("The status view requires a working tree");
2758 open_view(view, request, OPEN_DEFAULT);
2766 open_view(view, request, OPEN_DEFAULT);
2771 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
2773 if ((view == VIEW(REQ_VIEW_DIFF) &&
2774 view->parent == VIEW(REQ_VIEW_MAIN)) ||
2775 (view == VIEW(REQ_VIEW_DIFF) &&
2776 view->parent == VIEW(REQ_VIEW_BLAME)) ||
2777 (view == VIEW(REQ_VIEW_STAGE) &&
2778 view->parent == VIEW(REQ_VIEW_STATUS)) ||
2779 (view == VIEW(REQ_VIEW_BLOB) &&
2780 view->parent == VIEW(REQ_VIEW_TREE))) {
2783 view = view->parent;
2784 line = view->lineno;
2785 move_view(view, request);
2786 if (view_is_displayed(view))
2787 update_view_title(view);
2788 if (line != view->lineno)
2789 view->ops->request(view, REQ_ENTER,
2790 &view->line[view->lineno]);
2793 move_view(view, request);
2799 int nviews = displayed_views();
2800 int next_view = (current_view + 1) % nviews;
2802 if (next_view == current_view) {
2803 report("Only one view is displayed");
2807 current_view = next_view;
2808 /* Blur out the title of the previous view. */
2809 update_view_title(view);
2814 report("Refreshing is not yet supported for the %s view", view->name);
2818 if (displayed_views() == 2)
2819 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
2822 case REQ_TOGGLE_LINENO:
2823 opt_line_number = !opt_line_number;
2827 case REQ_TOGGLE_DATE:
2828 opt_date = !opt_date;
2832 case REQ_TOGGLE_AUTHOR:
2833 opt_author = !opt_author;
2837 case REQ_TOGGLE_REV_GRAPH:
2838 opt_rev_graph = !opt_rev_graph;
2842 case REQ_TOGGLE_REFS:
2843 opt_show_refs = !opt_show_refs;
2848 case REQ_SEARCH_BACK:
2849 search_view(view, request);
2854 find_next(view, request);
2857 case REQ_STOP_LOADING:
2858 for (i = 0; i < ARRAY_SIZE(views); i++) {
2861 report("Stopped loading the %s view", view->name),
2862 end_update(view, TRUE);
2866 case REQ_SHOW_VERSION:
2867 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
2870 case REQ_SCREEN_RESIZE:
2873 case REQ_SCREEN_REDRAW:
2878 report("Nothing to edit");
2882 report("Nothing to enter");
2885 case REQ_VIEW_CLOSE:
2886 /* XXX: Mark closed views by letting view->parent point to the
2887 * view itself. Parents to closed view should never be
2890 view->parent->parent != view->parent) {
2891 memset(display, 0, sizeof(display));
2893 display[current_view] = view->parent;
2894 view->parent = view;
2905 report("Unknown key, press 'h' for help");
2918 pager_draw(struct view *view, struct line *line, unsigned int lineno)
2920 char *text = line->data;
2922 if (opt_line_number && draw_lineno(view, lineno))
2925 draw_text(view, line->type, text, TRUE);
2930 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
2932 char refbuf[SIZEOF_STR];
2936 if (!string_format(refbuf, "git describe %s 2>/dev/null", commit_id))
2939 pipe = popen(refbuf, "r");
2943 if ((ref = fgets(refbuf, sizeof(refbuf), pipe)))
2944 ref = chomp_string(ref);
2950 /* This is the only fatal call, since it can "corrupt" the buffer. */
2951 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
2958 add_pager_refs(struct view *view, struct line *line)
2960 char buf[SIZEOF_STR];
2961 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
2963 size_t bufpos = 0, refpos = 0;
2964 const char *sep = "Refs: ";
2965 bool is_tag = FALSE;
2967 assert(line->type == LINE_COMMIT);
2969 refs = get_refs(commit_id);
2971 if (view == VIEW(REQ_VIEW_DIFF))
2972 goto try_add_describe_ref;
2977 struct ref *ref = refs[refpos];
2978 const char *fmt = ref->tag ? "%s[%s]" :
2979 ref->remote ? "%s<%s>" : "%s%s";
2981 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
2986 } while (refs[refpos++]->next);
2988 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
2989 try_add_describe_ref:
2990 /* Add <tag>-g<commit_id> "fake" reference. */
2991 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
2998 if (!realloc_lines(view, view->line_size + 1))
3001 add_line_text(view, buf, LINE_PP_REFS);
3005 pager_read(struct view *view, char *data)
3012 line = add_line_text(view, data, get_line_type(data));
3016 if (line->type == LINE_COMMIT &&
3017 (view == VIEW(REQ_VIEW_DIFF) ||
3018 view == VIEW(REQ_VIEW_LOG)))
3019 add_pager_refs(view, line);
3025 pager_request(struct view *view, enum request request, struct line *line)
3029 if (request != REQ_ENTER)
3032 if (line->type == LINE_COMMIT &&
3033 (view == VIEW(REQ_VIEW_LOG) ||
3034 view == VIEW(REQ_VIEW_PAGER))) {
3035 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3039 /* Always scroll the view even if it was split. That way
3040 * you can use Enter to scroll through the log view and
3041 * split open each commit diff. */
3042 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3044 /* FIXME: A minor workaround. Scrolling the view will call report("")
3045 * but if we are scrolling a non-current view this won't properly
3046 * update the view title. */
3048 update_view_title(view);
3054 pager_grep(struct view *view, struct line *line)
3057 char *text = line->data;
3062 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3069 pager_select(struct view *view, struct line *line)
3071 if (line->type == LINE_COMMIT) {
3072 char *text = (char *)line->data + STRING_SIZE("commit ");
3074 if (view != VIEW(REQ_VIEW_PAGER))
3075 string_copy_rev(view->ref, text);
3076 string_copy_rev(ref_commit, text);
3080 static struct view_ops pager_ops = {
3091 log_request(struct view *view, enum request request, struct line *line)
3096 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3099 return pager_request(view, request, line);
3103 static struct view_ops log_ops = {
3119 help_open(struct view *view)
3122 int lines = ARRAY_SIZE(req_info) + 2;
3125 if (view->lines > 0)
3128 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3129 if (!req_info[i].request)
3132 lines += run_requests + 1;
3134 view->line = calloc(lines, sizeof(*view->line));
3138 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3140 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3143 if (req_info[i].request == REQ_NONE)
3146 if (!req_info[i].request) {
3147 add_line_text(view, "", LINE_DEFAULT);
3148 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3152 key = get_key(req_info[i].request);
3154 key = "(no key defined)";
3156 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
3159 add_line_text(view, buf, LINE_DEFAULT);
3163 add_line_text(view, "", LINE_DEFAULT);
3164 add_line_text(view, "External commands:", LINE_DEFAULT);
3167 for (i = 0; i < run_requests; i++) {
3168 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3174 key = get_key_name(req->key);
3176 key = "(no key defined)";
3178 if (!string_format(buf, " %-10s %-14s `%s`",
3179 keymap_table[req->keymap].name,
3183 add_line_text(view, buf, LINE_DEFAULT);
3189 static struct view_ops help_ops = {
3204 struct tree_stack_entry {
3205 struct tree_stack_entry *prev; /* Entry below this in the stack */
3206 unsigned long lineno; /* Line number to restore */
3207 char *name; /* Position of name in opt_path */
3210 /* The top of the path stack. */
3211 static struct tree_stack_entry *tree_stack = NULL;
3212 unsigned long tree_lineno = 0;
3215 pop_tree_stack_entry(void)
3217 struct tree_stack_entry *entry = tree_stack;
3219 tree_lineno = entry->lineno;
3221 tree_stack = entry->prev;
3226 push_tree_stack_entry(const char *name, unsigned long lineno)
3228 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3229 size_t pathlen = strlen(opt_path);
3234 entry->prev = tree_stack;
3235 entry->name = opt_path + pathlen;
3238 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3239 pop_tree_stack_entry();
3243 /* Move the current line to the first tree entry. */
3245 entry->lineno = lineno;
3248 /* Parse output from git-ls-tree(1):
3250 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3251 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3252 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3253 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3256 #define SIZEOF_TREE_ATTR \
3257 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3259 #define TREE_UP_FORMAT "040000 tree %s\t.."
3262 tree_compare_entry(enum line_type type1, const char *name1,
3263 enum line_type type2, const char *name2)
3265 if (type1 != type2) {
3266 if (type1 == LINE_TREE_DIR)
3271 return strcmp(name1, name2);
3275 tree_path(struct line *line)
3277 const char *path = line->data;
3279 return path + SIZEOF_TREE_ATTR;
3283 tree_read(struct view *view, char *text)
3285 size_t textlen = text ? strlen(text) : 0;
3286 char buf[SIZEOF_STR];
3288 enum line_type type;
3289 bool first_read = view->lines == 0;
3293 if (textlen <= SIZEOF_TREE_ATTR)
3296 type = text[STRING_SIZE("100644 ")] == 't'
3297 ? LINE_TREE_DIR : LINE_TREE_FILE;
3300 /* Add path info line */
3301 if (!string_format(buf, "Directory path /%s", opt_path) ||
3302 !realloc_lines(view, view->line_size + 1) ||
3303 !add_line_text(view, buf, LINE_DEFAULT))
3306 /* Insert "link" to parent directory. */
3308 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
3309 !realloc_lines(view, view->line_size + 1) ||
3310 !add_line_text(view, buf, LINE_TREE_DIR))
3315 /* Strip the path part ... */
3317 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3318 size_t striplen = strlen(opt_path);
3319 char *path = text + SIZEOF_TREE_ATTR;
3321 if (pathlen > striplen)
3322 memmove(path, path + striplen,
3323 pathlen - striplen + 1);
3326 /* Skip "Directory ..." and ".." line. */
3327 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
3328 struct line *line = &view->line[pos];
3329 const char *path1 = tree_path(line);
3330 char *path2 = text + SIZEOF_TREE_ATTR;
3331 int cmp = tree_compare_entry(line->type, path1, type, path2);
3336 text = strdup(text);
3340 if (view->lines > pos)
3341 memmove(&view->line[pos + 1], &view->line[pos],
3342 (view->lines - pos) * sizeof(*line));
3344 line = &view->line[pos];
3351 if (!add_line_text(view, text, type))
3354 if (tree_lineno > view->lineno) {
3355 view->lineno = tree_lineno;
3363 tree_request(struct view *view, enum request request, struct line *line)
3365 enum open_flags flags;
3368 case REQ_VIEW_BLAME:
3369 if (line->type != LINE_TREE_FILE) {
3370 report("Blame only supported for files");
3374 string_copy(opt_ref, view->vid);
3375 string_format(opt_file, "%s%s", opt_path, tree_path(line));
3378 case REQ_TREE_PARENT:
3380 /* quit view if at top of tree */
3381 return REQ_VIEW_CLOSE;
3384 line = &view->line[1];
3394 /* Cleanup the stack if the tree view is at a different tree. */
3395 while (!*opt_path && tree_stack)
3396 pop_tree_stack_entry();
3398 switch (line->type) {
3400 /* Depending on whether it is a subdir or parent (updir?) link
3401 * mangle the path buffer. */
3402 if (line == &view->line[1] && *opt_path) {
3403 pop_tree_stack_entry();
3406 const char *basename = tree_path(line);
3408 push_tree_stack_entry(basename, view->lineno);
3411 /* Trees and subtrees share the same ID, so they are not not
3412 * unique like blobs. */
3413 flags = OPEN_RELOAD;
3414 request = REQ_VIEW_TREE;
3417 case LINE_TREE_FILE:
3418 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3419 request = REQ_VIEW_BLOB;
3426 open_view(view, request, flags);
3427 if (request == REQ_VIEW_TREE) {
3428 view->lineno = tree_lineno;
3435 tree_select(struct view *view, struct line *line)
3437 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3439 if (line->type == LINE_TREE_FILE) {
3440 string_copy_rev(ref_blob, text);
3442 } else if (line->type != LINE_TREE_DIR) {
3446 string_copy_rev(view->ref, text);
3449 static struct view_ops tree_ops = {
3460 blob_read(struct view *view, char *line)
3464 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3467 static struct view_ops blob_ops = {
3480 * Loading the blame view is a two phase job:
3482 * 1. File content is read either using opt_file from the
3483 * filesystem or using git-cat-file.
3484 * 2. Then blame information is incrementally added by
3485 * reading output from git-blame.
3488 struct blame_commit {
3489 char id[SIZEOF_REV]; /* SHA1 ID. */
3490 char title[128]; /* First line of the commit message. */
3491 char author[75]; /* Author of the commit. */
3492 struct tm time; /* Date from the author ident. */
3493 char filename[128]; /* Name of file. */
3497 struct blame_commit *commit;
3498 unsigned int header:1;
3502 #define BLAME_CAT_FILE_CMD "git cat-file blob %s:%s"
3503 #define BLAME_INCREMENTAL_CMD "git blame --incremental %s -- %s"
3506 blame_open(struct view *view)
3508 char path[SIZEOF_STR];
3509 char ref[SIZEOF_STR] = "";
3511 if (sq_quote(path, 0, opt_file) >= sizeof(path))
3514 if (*opt_ref && sq_quote(ref, 0, opt_ref) >= sizeof(ref))
3518 if (!string_format(view->cmd, BLAME_CAT_FILE_CMD, ref, path))
3521 view->pipe = fopen(opt_file, "r");
3523 !string_format(view->cmd, BLAME_CAT_FILE_CMD, "HEAD", path))
3528 view->pipe = popen(view->cmd, "r");
3532 if (!string_format(view->cmd, BLAME_INCREMENTAL_CMD, ref, path))
3536 string_format(view->ref, "%s ...", opt_file);
3537 string_copy_rev(view->vid, opt_file);
3538 set_nonblocking_input(TRUE);
3539 view->start_time = time(NULL);
3544 static struct blame_commit *
3545 get_blame_commit(struct view *view, const char *id)
3549 for (i = 0; i < view->lines; i++) {
3550 struct blame *blame = view->line[i].data;
3555 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3556 return blame->commit;
3560 struct blame_commit *commit = calloc(1, sizeof(*commit));
3563 string_ncopy(commit->id, id, SIZEOF_REV);
3569 parse_number(const char **posref, size_t *number, size_t min, size_t max)
3571 const char *pos = *posref;
3574 pos = strchr(pos + 1, ' ');
3575 if (!pos || !isdigit(pos[1]))
3577 *number = atoi(pos + 1);
3578 if (*number < min || *number > max)
3585 static struct blame_commit *
3586 parse_blame_commit(struct view *view, const char *text, int *blamed)
3588 struct blame_commit *commit;
3589 struct blame *blame;
3590 const char *pos = text + SIZEOF_REV - 1;
3594 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3597 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3598 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3601 commit = get_blame_commit(view, text);
3607 struct line *line = &view->line[lineno + group - 1];
3610 blame->commit = commit;
3611 blame->header = !group;
3619 blame_read_file(struct view *view, const char *line)
3624 if (view->lines > 0)
3625 pipe = popen(view->cmd, "r");
3626 else if (!view->parent)
3627 die("No blame exist for %s", view->vid);
3630 report("Failed to load blame data");
3639 size_t linelen = strlen(line);
3640 struct blame *blame = malloc(sizeof(*blame) + linelen);
3642 blame->commit = NULL;
3643 strncpy(blame->text, line, linelen);
3644 blame->text[linelen] = 0;
3645 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3650 match_blame_header(const char *name, char **line)
3652 size_t namelen = strlen(name);
3653 bool matched = !strncmp(name, *line, namelen);
3662 blame_read(struct view *view, char *line)
3664 static struct blame_commit *commit = NULL;
3665 static int blamed = 0;
3666 static time_t author_time;
3669 return blame_read_file(view, line);
3675 string_format(view->ref, "%s", view->vid);
3676 if (view_is_displayed(view)) {
3677 update_view_title(view);
3678 redraw_view_from(view, 0);
3684 commit = parse_blame_commit(view, line, &blamed);
3685 string_format(view->ref, "%s %2d%%", view->vid,
3686 blamed * 100 / view->lines);
3688 } else if (match_blame_header("author ", &line)) {
3689 string_ncopy(commit->author, line, strlen(line));
3691 } else if (match_blame_header("author-time ", &line)) {
3692 author_time = (time_t) atol(line);
3694 } else if (match_blame_header("author-tz ", &line)) {
3697 tz = ('0' - line[1]) * 60 * 60 * 10;
3698 tz += ('0' - line[2]) * 60 * 60;
3699 tz += ('0' - line[3]) * 60;
3700 tz += ('0' - line[4]) * 60;
3706 gmtime_r(&author_time, &commit->time);
3708 } else if (match_blame_header("summary ", &line)) {
3709 string_ncopy(commit->title, line, strlen(line));
3711 } else if (match_blame_header("filename ", &line)) {
3712 string_ncopy(commit->filename, line, strlen(line));
3720 blame_draw(struct view *view, struct line *line, unsigned int lineno)
3722 struct blame *blame = line->data;
3723 struct tm *time = NULL;
3724 const char *id = NULL, *author = NULL;
3726 if (blame->commit && *blame->commit->filename) {
3727 id = blame->commit->id;
3728 author = blame->commit->author;
3729 time = &blame->commit->time;
3732 if (opt_date && draw_date(view, time))
3736 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
3739 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
3742 if (draw_lineno(view, lineno))
3745 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
3750 blame_request(struct view *view, enum request request, struct line *line)
3752 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3753 struct blame *blame = line->data;
3757 if (!blame->commit) {
3758 report("No commit loaded yet");
3762 if (!strcmp(blame->commit->id, NULL_ID)) {
3763 char path[SIZEOF_STR];
3765 if (sq_quote(path, 0, view->vid) >= sizeof(path))
3767 string_format(opt_cmd, "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s 2>/dev/null", path);
3770 open_view(view, REQ_VIEW_DIFF, flags);
3781 blame_grep(struct view *view, struct line *line)
3783 struct blame *blame = line->data;
3784 struct blame_commit *commit = blame->commit;
3787 #define MATCH(text, on) \
3788 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
3791 char buf[DATE_COLS + 1];
3793 if (MATCH(commit->title, 1) ||
3794 MATCH(commit->author, opt_author) ||
3795 MATCH(commit->id, opt_date))
3798 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
3803 return MATCH(blame->text, 1);
3809 blame_select(struct view *view, struct line *line)
3811 struct blame *blame = line->data;
3812 struct blame_commit *commit = blame->commit;
3817 if (!strcmp(commit->id, NULL_ID))
3818 string_ncopy(ref_commit, "HEAD", 4);
3820 string_copy_rev(ref_commit, commit->id);
3823 static struct view_ops blame_ops = {
3841 char rev[SIZEOF_REV];
3842 char name[SIZEOF_STR];
3846 char rev[SIZEOF_REV];
3847 char name[SIZEOF_STR];
3851 static char status_onbranch[SIZEOF_STR];
3852 static struct status stage_status;
3853 static enum line_type stage_line_type;
3854 static size_t stage_chunks;
3855 static int *stage_chunk;
3857 /* This should work even for the "On branch" line. */
3859 status_has_none(struct view *view, struct line *line)
3861 return line < view->line + view->lines && !line[1].data;
3864 /* Get fields from the diff line:
3865 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
3868 status_get_diff(struct status *file, const char *buf, size_t bufsize)
3870 const char *old_mode = buf + 1;
3871 const char *new_mode = buf + 8;
3872 const char *old_rev = buf + 15;
3873 const char *new_rev = buf + 56;
3874 const char *status = buf + 97;
3877 old_mode[-1] != ':' ||
3878 new_mode[-1] != ' ' ||
3879 old_rev[-1] != ' ' ||
3880 new_rev[-1] != ' ' ||
3884 file->status = *status;
3886 string_copy_rev(file->old.rev, old_rev);
3887 string_copy_rev(file->new.rev, new_rev);
3889 file->old.mode = strtoul(old_mode, NULL, 8);
3890 file->new.mode = strtoul(new_mode, NULL, 8);
3892 file->old.name[0] = file->new.name[0] = 0;
3898 status_run(struct view *view, const char cmd[], char status, enum line_type type)
3900 struct status *file = NULL;
3901 struct status *unmerged = NULL;
3902 char buf[SIZEOF_STR * 4];
3906 pipe = popen(cmd, "r");
3910 add_line_data(view, NULL, type);
3912 while (!feof(pipe) && !ferror(pipe)) {
3916 readsize = fread(buf + bufsize, 1, sizeof(buf) - bufsize, pipe);
3919 bufsize += readsize;
3921 /* Process while we have NUL chars. */
3922 while ((sep = memchr(buf, 0, bufsize))) {
3923 size_t sepsize = sep - buf + 1;
3926 if (!realloc_lines(view, view->line_size + 1))
3929 file = calloc(1, sizeof(*file));
3933 add_line_data(view, file, type);
3936 /* Parse diff info part. */
3938 file->status = status;
3940 string_copy(file->old.rev, NULL_ID);
3942 } else if (!file->status) {
3943 if (!status_get_diff(file, buf, sepsize))
3947 memmove(buf, sep + 1, bufsize);
3949 sep = memchr(buf, 0, bufsize);
3952 sepsize = sep - buf + 1;
3954 /* Collapse all 'M'odified entries that
3955 * follow a associated 'U'nmerged entry.
3957 if (file->status == 'U') {
3960 } else if (unmerged) {
3961 int collapse = !strcmp(buf, unmerged->new.name);
3972 /* Grab the old name for rename/copy. */
3973 if (!*file->old.name &&
3974 (file->status == 'R' || file->status == 'C')) {
3975 sepsize = sep - buf + 1;
3976 string_ncopy(file->old.name, buf, sepsize);
3978 memmove(buf, sep + 1, bufsize);
3980 sep = memchr(buf, 0, bufsize);
3983 sepsize = sep - buf + 1;
3986 /* git-ls-files just delivers a NUL separated
3987 * list of file names similar to the second half
3988 * of the git-diff-* output. */
3989 string_ncopy(file->new.name, buf, sepsize);
3990 if (!*file->old.name)
3991 string_copy(file->old.name, file->new.name);
3993 memmove(buf, sep + 1, bufsize);
4004 if (!view->line[view->lines - 1].data)
4005 add_line_data(view, NULL, LINE_STAT_NONE);
4011 /* Don't show unmerged entries in the staged section. */
4012 #define STATUS_DIFF_INDEX_CMD "git diff-index -z --diff-filter=ACDMRTXB --cached -M HEAD"
4013 #define STATUS_DIFF_FILES_CMD "git diff-files -z"
4014 #define STATUS_LIST_OTHER_CMD \
4015 "git ls-files -z --others --exclude-standard"
4016 #define STATUS_LIST_NO_HEAD_CMD \
4017 "git ls-files -z --cached --exclude-standard"
4019 #define STATUS_DIFF_INDEX_SHOW_CMD \
4020 "git diff-index --root --patch-with-stat -C -M --cached HEAD -- %s %s 2>/dev/null"
4022 #define STATUS_DIFF_FILES_SHOW_CMD \
4023 "git diff-files --root --patch-with-stat -C -M -- %s %s 2>/dev/null"
4025 #define STATUS_DIFF_NO_HEAD_SHOW_CMD \
4026 "git diff --no-color --patch-with-stat /dev/null %s 2>/dev/null"
4028 /* First parse staged info using git-diff-index(1), then parse unstaged
4029 * info using git-diff-files(1), and finally untracked files using
4030 * git-ls-files(1). */
4032 status_open(struct view *view)
4034 unsigned long prev_lineno = view->lineno;
4038 if (!realloc_lines(view, view->line_size + 7))
4041 add_line_data(view, NULL, LINE_STAT_HEAD);
4042 if (is_initial_commit())
4043 string_copy(status_onbranch, "Initial commit");
4044 else if (!*opt_head)
4045 string_copy(status_onbranch, "Not currently on any branch");
4046 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4049 system("git update-index -q --refresh >/dev/null 2>/dev/null");
4051 if (is_initial_commit()) {
4052 if (!status_run(view, STATUS_LIST_NO_HEAD_CMD, 'A', LINE_STAT_STAGED))
4054 } else if (!status_run(view, STATUS_DIFF_INDEX_CMD, 0, LINE_STAT_STAGED)) {
4058 if (!status_run(view, STATUS_DIFF_FILES_CMD, 0, LINE_STAT_UNSTAGED) ||
4059 !status_run(view, STATUS_LIST_OTHER_CMD, '?', LINE_STAT_UNTRACKED))
4062 /* If all went well restore the previous line number to stay in
4063 * the context or select a line with something that can be
4065 if (prev_lineno >= view->lines)
4066 prev_lineno = view->lines - 1;
4067 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4069 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4072 /* If the above fails, always skip the "On branch" line. */
4073 if (prev_lineno < view->lines)
4074 view->lineno = prev_lineno;
4078 if (view->lineno < view->offset)
4079 view->offset = view->lineno;
4080 else if (view->offset + view->height <= view->lineno)
4081 view->offset = view->lineno - view->height + 1;
4087 status_draw(struct view *view, struct line *line, unsigned int lineno)
4089 struct status *status = line->data;
4090 enum line_type type;
4094 switch (line->type) {
4095 case LINE_STAT_STAGED:
4096 type = LINE_STAT_SECTION;
4097 text = "Changes to be committed:";
4100 case LINE_STAT_UNSTAGED:
4101 type = LINE_STAT_SECTION;
4102 text = "Changed but not updated:";
4105 case LINE_STAT_UNTRACKED:
4106 type = LINE_STAT_SECTION;
4107 text = "Untracked files:";
4110 case LINE_STAT_NONE:
4111 type = LINE_DEFAULT;
4112 text = " (no files)";
4115 case LINE_STAT_HEAD:
4116 type = LINE_STAT_HEAD;
4117 text = status_onbranch;
4124 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4126 buf[0] = status->status;
4127 if (draw_text(view, line->type, buf, TRUE))
4129 type = LINE_DEFAULT;
4130 text = status->new.name;
4133 draw_text(view, type, text, TRUE);
4138 status_enter(struct view *view, struct line *line)
4140 struct status *status = line->data;
4141 char oldpath[SIZEOF_STR] = "";
4142 char newpath[SIZEOF_STR] = "";
4145 enum open_flags split;
4147 if (line->type == LINE_STAT_NONE ||
4148 (!status && line[1].type == LINE_STAT_NONE)) {
4149 report("No file to diff");
4154 if (sq_quote(oldpath, 0, status->old.name) >= sizeof(oldpath))
4156 /* Diffs for unmerged entries are empty when pasing the
4157 * new path, so leave it empty. */
4158 if (status->status != 'U' &&
4159 sq_quote(newpath, 0, status->new.name) >= sizeof(newpath))
4164 line->type != LINE_STAT_UNTRACKED &&
4165 !string_format_from(opt_cmd, &cmdsize, "cd %s;", opt_cdup))
4168 switch (line->type) {
4169 case LINE_STAT_STAGED:
4170 if (is_initial_commit()) {
4171 if (!string_format_from(opt_cmd, &cmdsize,
4172 STATUS_DIFF_NO_HEAD_SHOW_CMD,
4176 if (!string_format_from(opt_cmd, &cmdsize,
4177 STATUS_DIFF_INDEX_SHOW_CMD,
4183 info = "Staged changes to %s";
4185 info = "Staged changes";
4188 case LINE_STAT_UNSTAGED:
4189 if (!string_format_from(opt_cmd, &cmdsize,
4190 STATUS_DIFF_FILES_SHOW_CMD, oldpath, newpath))
4193 info = "Unstaged changes to %s";
4195 info = "Unstaged changes";
4198 case LINE_STAT_UNTRACKED:
4203 report("No file to show");
4207 if (!suffixcmp(status->new.name, -1, "/")) {
4208 report("Cannot display a directory");
4212 opt_pipe = fopen(status->new.name, "r");
4213 info = "Untracked file %s";
4216 case LINE_STAT_HEAD:
4220 die("line type %d not handled in switch", line->type);
4223 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4224 open_view(view, REQ_VIEW_STAGE, OPEN_RELOAD | split);
4225 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4227 stage_status = *status;
4229 memset(&stage_status, 0, sizeof(stage_status));
4232 stage_line_type = line->type;
4234 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4241 status_exists(struct status *status, enum line_type type)
4243 struct view *view = VIEW(REQ_VIEW_STATUS);
4246 for (line = view->line; line < view->line + view->lines; line++) {
4247 struct status *pos = line->data;
4249 if (line->type == type && pos &&
4250 !strcmp(status->new.name, pos->new.name))
4259 status_update_prepare(enum line_type type)
4261 char cmd[SIZEOF_STR];
4265 type != LINE_STAT_UNTRACKED &&
4266 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4270 case LINE_STAT_STAGED:
4271 string_add(cmd, cmdsize, "git update-index -z --index-info");
4274 case LINE_STAT_UNSTAGED:
4275 case LINE_STAT_UNTRACKED:
4276 string_add(cmd, cmdsize, "git update-index -z --add --remove --stdin");
4280 die("line type %d not handled in switch", type);
4283 return popen(cmd, "w");
4287 status_update_write(FILE *pipe, struct status *status, enum line_type type)
4289 char buf[SIZEOF_STR];
4294 case LINE_STAT_STAGED:
4295 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4298 status->old.name, 0))
4302 case LINE_STAT_UNSTAGED:
4303 case LINE_STAT_UNTRACKED:
4304 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4309 die("line type %d not handled in switch", type);
4312 while (!ferror(pipe) && written < bufsize) {
4313 written += fwrite(buf + written, 1, bufsize - written, pipe);
4316 return written == bufsize;
4320 status_update_file(struct status *status, enum line_type type)
4322 FILE *pipe = status_update_prepare(type);
4328 result = status_update_write(pipe, status, type);
4334 status_update_files(struct view *view, struct line *line)
4336 FILE *pipe = status_update_prepare(line->type);
4338 struct line *pos = view->line + view->lines;
4345 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4348 for (file = 0, done = 0; result && file < files; line++, file++) {
4349 int almost_done = file * 100 / files;
4351 if (almost_done > done) {
4353 string_format(view->ref, "updating file %u of %u (%d%% done)",
4355 update_view_title(view);
4357 result = status_update_write(pipe, line->data, line->type);
4365 status_update(struct view *view)
4367 struct line *line = &view->line[view->lineno];
4369 assert(view->lines);
4372 /* This should work even for the "On branch" line. */
4373 if (line < view->line + view->lines && !line[1].data) {
4374 report("Nothing to update");
4378 if (!status_update_files(view, line + 1)) {
4379 report("Failed to update file status");
4383 } else if (!status_update_file(line->data, line->type)) {
4384 report("Failed to update file status");
4392 status_revert(struct status *status, enum line_type type, bool has_none)
4394 if (!status || type != LINE_STAT_UNSTAGED) {
4395 if (type == LINE_STAT_STAGED) {
4396 report("Cannot revert changes to staged files");
4397 } else if (type == LINE_STAT_UNTRACKED) {
4398 report("Cannot revert changes to untracked files");
4399 } else if (has_none) {
4400 report("Nothing to revert");
4402 report("Cannot revert changes to multiple files");
4407 char cmd[SIZEOF_STR];
4408 char file_sq[SIZEOF_STR];
4410 if (sq_quote(file_sq, 0, status->old.name) >= sizeof(file_sq) ||
4411 !string_format(cmd, "git checkout -- %s%s", opt_cdup, file_sq))
4414 return run_confirm(cmd, "Are you sure you want to overwrite any changes?");
4419 status_request(struct view *view, enum request request, struct line *line)
4421 struct status *status = line->data;
4424 case REQ_STATUS_UPDATE:
4425 if (!status_update(view))
4429 case REQ_STATUS_REVERT:
4430 if (!status_revert(status, line->type, status_has_none(view, line)))
4434 case REQ_STATUS_MERGE:
4435 if (!status || status->status != 'U') {
4436 report("Merging only possible for files with unmerged status ('U').");
4439 open_mergetool(status->new.name);
4445 if (status->status == 'D') {
4446 report("File has been deleted.");
4450 open_editor(status->status != '?', status->new.name);
4453 case REQ_VIEW_BLAME:
4455 string_copy(opt_file, status->new.name);
4461 /* After returning the status view has been split to
4462 * show the stage view. No further reloading is
4464 status_enter(view, line);
4468 /* Simply reload the view. */
4475 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4481 status_select(struct view *view, struct line *line)
4483 struct status *status = line->data;
4484 char file[SIZEOF_STR] = "all files";
4488 if (status && !string_format(file, "'%s'", status->new.name))
4491 if (!status && line[1].type == LINE_STAT_NONE)
4494 switch (line->type) {
4495 case LINE_STAT_STAGED:
4496 text = "Press %s to unstage %s for commit";
4499 case LINE_STAT_UNSTAGED:
4500 text = "Press %s to stage %s for commit";
4503 case LINE_STAT_UNTRACKED:
4504 text = "Press %s to stage %s for addition";
4507 case LINE_STAT_HEAD:
4508 case LINE_STAT_NONE:
4509 text = "Nothing to update";
4513 die("line type %d not handled in switch", line->type);
4516 if (status && status->status == 'U') {
4517 text = "Press %s to resolve conflict in %s";
4518 key = get_key(REQ_STATUS_MERGE);
4521 key = get_key(REQ_STATUS_UPDATE);
4524 string_format(view->ref, text, key, file);
4528 status_grep(struct view *view, struct line *line)
4530 struct status *status = line->data;
4531 enum { S_STATUS, S_NAME, S_END } state;
4538 for (state = S_STATUS; state < S_END; state++) {
4542 case S_NAME: text = status->new.name; break;
4544 buf[0] = status->status;
4552 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4559 static struct view_ops status_ops = {
4571 stage_diff_line(FILE *pipe, struct line *line)
4573 const char *buf = line->data;
4574 size_t bufsize = strlen(buf);
4577 while (!ferror(pipe) && written < bufsize) {
4578 written += fwrite(buf + written, 1, bufsize - written, pipe);
4583 return written == bufsize;
4587 stage_diff_write(FILE *pipe, struct line *line, struct line *end)
4589 while (line < end) {
4590 if (!stage_diff_line(pipe, line++))
4592 if (line->type == LINE_DIFF_CHUNK ||
4593 line->type == LINE_DIFF_HEADER)
4600 static struct line *
4601 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4603 for (; view->line < line; line--)
4604 if (line->type == type)
4611 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
4613 char cmd[SIZEOF_STR];
4615 struct line *diff_hdr;
4618 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4623 !string_format_from(cmd, &cmdsize, "cd %s;", opt_cdup))
4626 if (!string_format_from(cmd, &cmdsize,
4627 "git apply --whitespace=nowarn %s %s - && "
4628 "git update-index -q --unmerged --refresh 2>/dev/null",
4629 revert ? "" : "--cached",
4630 revert || stage_line_type == LINE_STAT_STAGED ? "-R" : ""))
4633 pipe = popen(cmd, "w");
4637 if (!stage_diff_write(pipe, diff_hdr, chunk) ||
4638 !stage_diff_write(pipe, chunk, view->line + view->lines))
4643 return chunk ? TRUE : FALSE;
4647 stage_update(struct view *view, struct line *line)
4649 struct line *chunk = NULL;
4651 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
4652 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4655 if (!stage_apply_chunk(view, chunk, FALSE)) {
4656 report("Failed to apply chunk");
4660 } else if (!stage_status.status) {
4661 view = VIEW(REQ_VIEW_STATUS);
4663 for (line = view->line; line < view->line + view->lines; line++)
4664 if (line->type == stage_line_type)
4667 if (!status_update_files(view, line + 1)) {
4668 report("Failed to update files");
4672 } else if (!status_update_file(&stage_status, stage_line_type)) {
4673 report("Failed to update file");
4681 stage_revert(struct view *view, struct line *line)
4683 struct line *chunk = NULL;
4685 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
4686 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4689 if (!prompt_yesno("Are you sure you want to revert changes?"))
4692 if (!stage_apply_chunk(view, chunk, TRUE)) {
4693 report("Failed to revert chunk");
4699 return status_revert(stage_status.status ? &stage_status : NULL,
4700 stage_line_type, FALSE);
4706 stage_next(struct view *view, struct line *line)
4710 if (!stage_chunks) {
4711 static size_t alloc = 0;
4714 for (line = view->line; line < view->line + view->lines; line++) {
4715 if (line->type != LINE_DIFF_CHUNK)
4718 tmp = realloc_items(stage_chunk, &alloc,
4719 stage_chunks, sizeof(*tmp));
4721 report("Allocation failure");
4726 stage_chunk[stage_chunks++] = line - view->line;
4730 for (i = 0; i < stage_chunks; i++) {
4731 if (stage_chunk[i] > view->lineno) {
4732 do_scroll_view(view, stage_chunk[i] - view->lineno);
4733 report("Chunk %d of %d", i + 1, stage_chunks);
4738 report("No next chunk found");
4742 stage_request(struct view *view, enum request request, struct line *line)
4745 case REQ_STATUS_UPDATE:
4746 if (!stage_update(view, line))
4750 case REQ_STATUS_REVERT:
4751 if (!stage_revert(view, line))
4755 case REQ_STAGE_NEXT:
4756 if (stage_line_type == LINE_STAT_UNTRACKED) {
4757 report("File is untracked; press %s to add",
4758 get_key(REQ_STATUS_UPDATE));
4761 stage_next(view, line);
4765 if (!stage_status.new.name[0])
4767 if (stage_status.status == 'D') {
4768 report("File has been deleted.");
4772 open_editor(stage_status.status != '?', stage_status.new.name);
4776 /* Reload everything ... */
4779 case REQ_VIEW_BLAME:
4780 if (stage_status.new.name[0]) {
4781 string_copy(opt_file, stage_status.new.name);
4787 return pager_request(view, request, line);
4793 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
4795 /* Check whether the staged entry still exists, and close the
4796 * stage view if it doesn't. */
4797 if (!status_exists(&stage_status, stage_line_type))
4798 return REQ_VIEW_CLOSE;
4800 if (stage_line_type == LINE_STAT_UNTRACKED) {
4801 if (!suffixcmp(stage_status.new.name, -1, "/")) {
4802 report("Cannot display a directory");
4806 opt_pipe = fopen(stage_status.new.name, "r");
4808 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
4813 static struct view_ops stage_ops = {
4829 char id[SIZEOF_REV]; /* SHA1 ID. */
4830 char title[128]; /* First line of the commit message. */
4831 char author[75]; /* Author of the commit. */
4832 struct tm time; /* Date from the author ident. */
4833 struct ref **refs; /* Repository references. */
4834 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
4835 size_t graph_size; /* The width of the graph array. */
4836 bool has_parents; /* Rewritten --parents seen. */
4839 /* Size of rev graph with no "padding" columns */
4840 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
4843 struct rev_graph *prev, *next, *parents;
4844 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
4846 struct commit *commit;
4848 unsigned int boundary:1;
4851 /* Parents of the commit being visualized. */
4852 static struct rev_graph graph_parents[4];
4854 /* The current stack of revisions on the graph. */
4855 static struct rev_graph graph_stacks[4] = {
4856 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
4857 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
4858 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
4859 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
4863 graph_parent_is_merge(struct rev_graph *graph)
4865 return graph->parents->size > 1;
4869 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
4871 struct commit *commit = graph->commit;
4873 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
4874 commit->graph[commit->graph_size++] = symbol;
4878 clear_rev_graph(struct rev_graph *graph)
4880 graph->boundary = 0;
4881 graph->size = graph->pos = 0;
4882 graph->commit = NULL;
4883 memset(graph->parents, 0, sizeof(*graph->parents));
4887 done_rev_graph(struct rev_graph *graph)
4889 if (graph_parent_is_merge(graph) &&
4890 graph->pos < graph->size - 1 &&
4891 graph->next->size == graph->size + graph->parents->size - 1) {
4892 size_t i = graph->pos + graph->parents->size - 1;
4894 graph->commit->graph_size = i * 2;
4895 while (i < graph->next->size - 1) {
4896 append_to_rev_graph(graph, ' ');
4897 append_to_rev_graph(graph, '\\');
4902 clear_rev_graph(graph);
4906 push_rev_graph(struct rev_graph *graph, const char *parent)
4910 /* "Collapse" duplicate parents lines.
4912 * FIXME: This needs to also update update the drawn graph but
4913 * for now it just serves as a method for pruning graph lines. */
4914 for (i = 0; i < graph->size; i++)
4915 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
4918 if (graph->size < SIZEOF_REVITEMS) {
4919 string_copy_rev(graph->rev[graph->size++], parent);
4924 get_rev_graph_symbol(struct rev_graph *graph)
4928 if (graph->boundary)
4929 symbol = REVGRAPH_BOUND;
4930 else if (graph->parents->size == 0)
4931 symbol = REVGRAPH_INIT;
4932 else if (graph_parent_is_merge(graph))
4933 symbol = REVGRAPH_MERGE;
4934 else if (graph->pos >= graph->size)
4935 symbol = REVGRAPH_BRANCH;
4937 symbol = REVGRAPH_COMMIT;
4943 draw_rev_graph(struct rev_graph *graph)
4946 chtype separator, line;
4948 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
4949 static struct rev_filler fillers[] = {
4955 chtype symbol = get_rev_graph_symbol(graph);
4956 struct rev_filler *filler;
4959 if (opt_line_graphics)
4960 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
4962 filler = &fillers[DEFAULT];
4964 for (i = 0; i < graph->pos; i++) {
4965 append_to_rev_graph(graph, filler->line);
4966 if (graph_parent_is_merge(graph->prev) &&
4967 graph->prev->pos == i)
4968 filler = &fillers[RSHARP];
4970 append_to_rev_graph(graph, filler->separator);
4973 /* Place the symbol for this revision. */
4974 append_to_rev_graph(graph, symbol);
4976 if (graph->prev->size > graph->size)
4977 filler = &fillers[RDIAG];
4979 filler = &fillers[DEFAULT];
4983 for (; i < graph->size; i++) {
4984 append_to_rev_graph(graph, filler->separator);
4985 append_to_rev_graph(graph, filler->line);
4986 if (graph_parent_is_merge(graph->prev) &&
4987 i < graph->prev->pos + graph->parents->size)
4988 filler = &fillers[RSHARP];
4989 if (graph->prev->size > graph->size)
4990 filler = &fillers[LDIAG];
4993 if (graph->prev->size > graph->size) {
4994 append_to_rev_graph(graph, filler->separator);
4995 if (filler->line != ' ')
4996 append_to_rev_graph(graph, filler->line);
5000 /* Prepare the next rev graph */
5002 prepare_rev_graph(struct rev_graph *graph)
5006 /* First, traverse all lines of revisions up to the active one. */
5007 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5008 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5011 push_rev_graph(graph->next, graph->rev[graph->pos]);
5014 /* Interleave the new revision parent(s). */
5015 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5016 push_rev_graph(graph->next, graph->parents->rev[i]);
5018 /* Lastly, put any remaining revisions. */
5019 for (i = graph->pos + 1; i < graph->size; i++)
5020 push_rev_graph(graph->next, graph->rev[i]);
5024 update_rev_graph(struct rev_graph *graph)
5026 /* If this is the finalizing update ... */
5028 prepare_rev_graph(graph);
5030 /* Graph visualization needs a one rev look-ahead,
5031 * so the first update doesn't visualize anything. */
5032 if (!graph->prev->commit)
5035 draw_rev_graph(graph->prev);
5036 done_rev_graph(graph->prev->prev);
5045 main_draw(struct view *view, struct line *line, unsigned int lineno)
5047 struct commit *commit = line->data;
5049 if (!*commit->author)
5052 if (opt_date && draw_date(view, &commit->time))
5056 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5059 if (opt_rev_graph && commit->graph_size &&
5060 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5063 if (opt_show_refs && commit->refs) {
5067 enum line_type type;
5069 if (commit->refs[i]->head)
5070 type = LINE_MAIN_HEAD;
5071 else if (commit->refs[i]->ltag)
5072 type = LINE_MAIN_LOCAL_TAG;
5073 else if (commit->refs[i]->tag)
5074 type = LINE_MAIN_TAG;
5075 else if (commit->refs[i]->tracked)
5076 type = LINE_MAIN_TRACKED;
5077 else if (commit->refs[i]->remote)
5078 type = LINE_MAIN_REMOTE;
5080 type = LINE_MAIN_REF;
5082 if (draw_text(view, type, "[", TRUE) ||
5083 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5084 draw_text(view, type, "]", TRUE))
5087 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5089 } while (commit->refs[i++]->next);
5092 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5096 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5098 main_read(struct view *view, char *line)
5100 static struct rev_graph *graph = graph_stacks;
5101 enum line_type type;
5102 struct commit *commit;
5107 if (!view->lines && !view->parent)
5108 die("No revisions match the given arguments.");
5109 if (view->lines > 0) {
5110 commit = view->line[view->lines - 1].data;
5111 if (!*commit->author) {
5114 graph->commit = NULL;
5117 update_rev_graph(graph);
5119 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5120 clear_rev_graph(&graph_stacks[i]);
5124 type = get_line_type(line);
5125 if (type == LINE_COMMIT) {
5126 commit = calloc(1, sizeof(struct commit));
5130 line += STRING_SIZE("commit ");
5132 graph->boundary = 1;
5136 string_copy_rev(commit->id, line);
5137 commit->refs = get_refs(commit->id);
5138 graph->commit = commit;
5139 add_line_data(view, commit, LINE_MAIN_COMMIT);
5141 while ((line = strchr(line, ' '))) {
5143 push_rev_graph(graph->parents, line);
5144 commit->has_parents = TRUE;
5151 commit = view->line[view->lines - 1].data;
5155 if (commit->has_parents)
5157 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5162 /* Parse author lines where the name may be empty:
5163 * author <email@address.tld> 1138474660 +0100
5165 char *ident = line + STRING_SIZE("author ");
5166 char *nameend = strchr(ident, '<');
5167 char *emailend = strchr(ident, '>');
5169 if (!nameend || !emailend)
5172 update_rev_graph(graph);
5173 graph = graph->next;
5175 *nameend = *emailend = 0;
5176 ident = chomp_string(ident);
5178 ident = chomp_string(nameend + 1);
5183 string_ncopy(commit->author, ident, strlen(ident));
5185 /* Parse epoch and timezone */
5186 if (emailend[1] == ' ') {
5187 char *secs = emailend + 2;
5188 char *zone = strchr(secs, ' ');
5189 time_t time = (time_t) atol(secs);
5191 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5195 tz = ('0' - zone[1]) * 60 * 60 * 10;
5196 tz += ('0' - zone[2]) * 60 * 60;
5197 tz += ('0' - zone[3]) * 60;
5198 tz += ('0' - zone[4]) * 60;
5206 gmtime_r(&time, &commit->time);
5211 /* Fill in the commit title if it has not already been set. */
5212 if (commit->title[0])
5215 /* Require titles to start with a non-space character at the
5216 * offset used by git log. */
5217 if (strncmp(line, " ", 4))
5220 /* Well, if the title starts with a whitespace character,
5221 * try to be forgiving. Otherwise we end up with no title. */
5222 while (isspace(*line))
5226 /* FIXME: More graceful handling of titles; append "..." to
5227 * shortened titles, etc. */
5229 string_ncopy(commit->title, line, strlen(line));
5236 main_request(struct view *view, enum request request, struct line *line)
5238 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5242 open_view(view, REQ_VIEW_DIFF, flags);
5246 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5256 grep_refs(struct ref **refs, regex_t *regex)
5264 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5266 } while (refs[i++]->next);
5272 main_grep(struct view *view, struct line *line)
5274 struct commit *commit = line->data;
5275 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5276 char buf[DATE_COLS + 1];
5279 for (state = S_TITLE; state < S_END; state++) {
5283 case S_TITLE: text = commit->title; break;
5287 text = commit->author;
5292 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5299 if (grep_refs(commit->refs, view->regex) == TRUE)
5306 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5314 main_select(struct view *view, struct line *line)
5316 struct commit *commit = line->data;
5318 string_copy_rev(view->ref, commit->id);
5319 string_copy_rev(ref_commit, view->ref);
5322 static struct view_ops main_ops = {
5334 * Unicode / UTF-8 handling
5336 * NOTE: Much of the following code for dealing with unicode is derived from
5337 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5338 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5341 /* I've (over)annotated a lot of code snippets because I am not entirely
5342 * confident that the approach taken by this small UTF-8 interface is correct.
5346 unicode_width(unsigned long c)
5349 (c <= 0x115f /* Hangul Jamo */
5352 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5354 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5355 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5356 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5357 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5358 || (c >= 0xffe0 && c <= 0xffe6)
5359 || (c >= 0x20000 && c <= 0x2fffd)
5360 || (c >= 0x30000 && c <= 0x3fffd)))
5364 return opt_tab_size;
5369 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5370 * Illegal bytes are set one. */
5371 static const unsigned char utf8_bytes[256] = {
5372 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5373 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5374 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5375 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5376 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,
5377 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,
5378 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,
5379 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,
5382 /* Decode UTF-8 multi-byte representation into a unicode character. */
5383 static inline unsigned long
5384 utf8_to_unicode(const char *string, size_t length)
5386 unsigned long unicode;
5390 unicode = string[0];
5393 unicode = (string[0] & 0x1f) << 6;
5394 unicode += (string[1] & 0x3f);
5397 unicode = (string[0] & 0x0f) << 12;
5398 unicode += ((string[1] & 0x3f) << 6);
5399 unicode += (string[2] & 0x3f);
5402 unicode = (string[0] & 0x0f) << 18;
5403 unicode += ((string[1] & 0x3f) << 12);
5404 unicode += ((string[2] & 0x3f) << 6);
5405 unicode += (string[3] & 0x3f);
5408 unicode = (string[0] & 0x0f) << 24;
5409 unicode += ((string[1] & 0x3f) << 18);
5410 unicode += ((string[2] & 0x3f) << 12);
5411 unicode += ((string[3] & 0x3f) << 6);
5412 unicode += (string[4] & 0x3f);
5415 unicode = (string[0] & 0x01) << 30;
5416 unicode += ((string[1] & 0x3f) << 24);
5417 unicode += ((string[2] & 0x3f) << 18);
5418 unicode += ((string[3] & 0x3f) << 12);
5419 unicode += ((string[4] & 0x3f) << 6);
5420 unicode += (string[5] & 0x3f);
5423 die("Invalid unicode length");
5426 /* Invalid characters could return the special 0xfffd value but NUL
5427 * should be just as good. */
5428 return unicode > 0xffff ? 0 : unicode;
5431 /* Calculates how much of string can be shown within the given maximum width
5432 * and sets trimmed parameter to non-zero value if all of string could not be
5433 * shown. If the reserve flag is TRUE, it will reserve at least one
5434 * trailing character, which can be useful when drawing a delimiter.
5436 * Returns the number of bytes to output from string to satisfy max_width. */
5438 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5440 const char *start = string;
5441 const char *end = strchr(string, '\0');
5442 unsigned char last_bytes = 0;
5443 size_t last_ucwidth = 0;
5448 while (string < end) {
5449 int c = *(unsigned char *) string;
5450 unsigned char bytes = utf8_bytes[c];
5452 unsigned long unicode;
5454 if (string + bytes > end)
5457 /* Change representation to figure out whether
5458 * it is a single- or double-width character. */
5460 unicode = utf8_to_unicode(string, bytes);
5461 /* FIXME: Graceful handling of invalid unicode character. */
5465 ucwidth = unicode_width(unicode);
5467 if (*width > max_width) {
5470 if (reserve && *width == max_width) {
5471 string -= last_bytes;
5472 *width -= last_ucwidth;
5479 last_ucwidth = ucwidth;
5482 return string - start;
5490 /* Whether or not the curses interface has been initialized. */
5491 static bool cursed = FALSE;
5493 /* The status window is used for polling keystrokes. */
5494 static WINDOW *status_win;
5496 static bool status_empty = TRUE;
5498 /* Update status and title window. */
5500 report(const char *msg, ...)
5502 struct view *view = display[current_view];
5508 char buf[SIZEOF_STR];
5511 va_start(args, msg);
5512 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5513 buf[sizeof(buf) - 1] = 0;
5514 buf[sizeof(buf) - 2] = '.';
5515 buf[sizeof(buf) - 3] = '.';
5516 buf[sizeof(buf) - 4] = '.';
5522 if (!status_empty || *msg) {
5525 va_start(args, msg);
5527 wmove(status_win, 0, 0);
5529 vwprintw(status_win, msg, args);
5530 status_empty = FALSE;
5532 status_empty = TRUE;
5534 wclrtoeol(status_win);
5535 wrefresh(status_win);
5540 update_view_title(view);
5541 update_display_cursor(view);
5544 /* Controls when nodelay should be in effect when polling user input. */
5546 set_nonblocking_input(bool loading)
5548 static unsigned int loading_views;
5550 if ((loading == FALSE && loading_views-- == 1) ||
5551 (loading == TRUE && loading_views++ == 0))
5552 nodelay(status_win, loading);
5560 /* Initialize the curses library */
5561 if (isatty(STDIN_FILENO)) {
5562 cursed = !!initscr();
5565 /* Leave stdin and stdout alone when acting as a pager. */
5566 opt_tty = fopen("/dev/tty", "r+");
5568 die("Failed to open /dev/tty");
5569 cursed = !!newterm(NULL, opt_tty, opt_tty);
5573 die("Failed to initialize curses");
5575 nonl(); /* Tell curses not to do NL->CR/NL on output */
5576 cbreak(); /* Take input chars one at a time, no wait for \n */
5577 noecho(); /* Don't echo input */
5578 leaveok(stdscr, TRUE);
5583 getmaxyx(stdscr, y, x);
5584 status_win = newwin(1, 0, y - 1, 0);
5586 die("Failed to create status window");
5588 /* Enable keyboard mapping */
5589 keypad(status_win, TRUE);
5590 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5592 TABSIZE = opt_tab_size;
5593 if (opt_line_graphics) {
5594 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5599 prompt_yesno(const char *prompt)
5601 enum { WAIT, STOP, CANCEL } status = WAIT;
5602 bool answer = FALSE;
5604 while (status == WAIT) {
5610 foreach_view (view, i)
5615 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
5616 wclrtoeol(status_win);
5618 /* Refresh, accept single keystroke of input */
5619 key = wgetch(status_win);
5643 /* Clear the status window */
5644 status_empty = FALSE;
5651 read_prompt(const char *prompt)
5653 enum { READING, STOP, CANCEL } status = READING;
5654 static char buf[sizeof(opt_cmd) - STRING_SIZE("git \0")];
5657 while (status == READING) {
5663 foreach_view (view, i)
5668 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5669 wclrtoeol(status_win);
5671 /* Refresh, accept single keystroke of input */
5672 key = wgetch(status_win);
5677 status = pos ? STOP : CANCEL;
5695 if (pos >= sizeof(buf)) {
5696 report("Input string too long");
5701 buf[pos++] = (char) key;
5705 /* Clear the status window */
5706 status_empty = FALSE;
5709 if (status == CANCEL)
5718 * Repository references
5721 static struct ref *refs = NULL;
5722 static size_t refs_alloc = 0;
5723 static size_t refs_size = 0;
5725 /* Id <-> ref store */
5726 static struct ref ***id_refs = NULL;
5727 static size_t id_refs_alloc = 0;
5728 static size_t id_refs_size = 0;
5731 compare_refs(const void *ref1_, const void *ref2_)
5733 const struct ref *ref1 = *(const struct ref **)ref1_;
5734 const struct ref *ref2 = *(const struct ref **)ref2_;
5736 if (ref1->tag != ref2->tag)
5737 return ref2->tag - ref1->tag;
5738 if (ref1->ltag != ref2->ltag)
5739 return ref2->ltag - ref2->ltag;
5740 if (ref1->head != ref2->head)
5741 return ref2->head - ref1->head;
5742 if (ref1->tracked != ref2->tracked)
5743 return ref2->tracked - ref1->tracked;
5744 if (ref1->remote != ref2->remote)
5745 return ref2->remote - ref1->remote;
5746 return strcmp(ref1->name, ref2->name);
5749 static struct ref **
5750 get_refs(const char *id)
5752 struct ref ***tmp_id_refs;
5753 struct ref **ref_list = NULL;
5754 size_t ref_list_alloc = 0;
5755 size_t ref_list_size = 0;
5758 for (i = 0; i < id_refs_size; i++)
5759 if (!strcmp(id, id_refs[i][0]->id))
5762 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
5767 id_refs = tmp_id_refs;
5769 for (i = 0; i < refs_size; i++) {
5772 if (strcmp(id, refs[i].id))
5775 tmp = realloc_items(ref_list, &ref_list_alloc,
5776 ref_list_size + 1, sizeof(*ref_list));
5784 ref_list[ref_list_size] = &refs[i];
5785 /* XXX: The properties of the commit chains ensures that we can
5786 * safely modify the shared ref. The repo references will
5787 * always be similar for the same id. */
5788 ref_list[ref_list_size]->next = 1;
5794 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
5795 ref_list[ref_list_size - 1]->next = 0;
5796 id_refs[id_refs_size++] = ref_list;
5803 read_ref(char *id, size_t idlen, char *name, size_t namelen)
5808 bool remote = FALSE;
5809 bool tracked = FALSE;
5810 bool check_replace = FALSE;
5813 if (!prefixcmp(name, "refs/tags/")) {
5814 if (!suffixcmp(name, namelen, "^{}")) {
5817 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
5818 check_replace = TRUE;
5824 namelen -= STRING_SIZE("refs/tags/");
5825 name += STRING_SIZE("refs/tags/");
5827 } else if (!prefixcmp(name, "refs/remotes/")) {
5829 namelen -= STRING_SIZE("refs/remotes/");
5830 name += STRING_SIZE("refs/remotes/");
5831 tracked = !strcmp(opt_remote, name);
5833 } else if (!prefixcmp(name, "refs/heads/")) {
5834 namelen -= STRING_SIZE("refs/heads/");
5835 name += STRING_SIZE("refs/heads/");
5836 head = !strncmp(opt_head, name, namelen);
5838 } else if (!strcmp(name, "HEAD")) {
5839 string_ncopy(opt_head_rev, id, idlen);
5843 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
5844 /* it's an annotated tag, replace the previous sha1 with the
5845 * resolved commit id; relies on the fact git-ls-remote lists
5846 * the commit id of an annotated tag right before the commit id
5848 refs[refs_size - 1].ltag = ltag;
5849 string_copy_rev(refs[refs_size - 1].id, id);
5853 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
5857 ref = &refs[refs_size++];
5858 ref->name = malloc(namelen + 1);
5862 strncpy(ref->name, name, namelen);
5863 ref->name[namelen] = 0;
5867 ref->remote = remote;
5868 ref->tracked = tracked;
5869 string_copy_rev(ref->id, id);
5877 const char *cmd_env = getenv("TIG_LS_REMOTE");
5878 const char *cmd = cmd_env && *cmd_env ? cmd_env : TIG_LS_REMOTE;
5883 while (refs_size > 0)
5884 free(refs[--refs_size].name);
5885 while (id_refs_size > 0)
5886 free(id_refs[--id_refs_size]);
5888 return read_properties(popen(cmd, "r"), "\t", read_ref);
5892 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
5894 if (!strcmp(name, "i18n.commitencoding"))
5895 string_ncopy(opt_encoding, value, valuelen);
5897 if (!strcmp(name, "core.editor"))
5898 string_ncopy(opt_editor, value, valuelen);
5900 /* branch.<head>.remote */
5902 !strncmp(name, "branch.", 7) &&
5903 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5904 !strcmp(name + 7 + strlen(opt_head), ".remote"))
5905 string_ncopy(opt_remote, value, valuelen);
5907 if (*opt_head && *opt_remote &&
5908 !strncmp(name, "branch.", 7) &&
5909 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
5910 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
5911 size_t from = strlen(opt_remote);
5913 if (!prefixcmp(value, "refs/heads/")) {
5914 value += STRING_SIZE("refs/heads/");
5915 valuelen -= STRING_SIZE("refs/heads/");
5918 if (!string_format_from(opt_remote, &from, "/%s", value))
5926 load_git_config(void)
5928 return read_properties(popen("git " GIT_CONFIG " --list", "r"),
5929 "=", read_repo_config_option);
5933 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
5935 if (!opt_git_dir[0]) {
5936 string_ncopy(opt_git_dir, name, namelen);
5938 } else if (opt_is_inside_work_tree == -1) {
5939 /* This can be 3 different values depending on the
5940 * version of git being used. If git-rev-parse does not
5941 * understand --is-inside-work-tree it will simply echo
5942 * the option else either "true" or "false" is printed.
5943 * Default to true for the unknown case. */
5944 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
5946 } else if (opt_cdup[0] == ' ') {
5947 string_ncopy(opt_cdup, name, namelen);
5949 if (!prefixcmp(name, "refs/heads/")) {
5950 namelen -= STRING_SIZE("refs/heads/");
5951 name += STRING_SIZE("refs/heads/");
5952 string_ncopy(opt_head, name, namelen);
5960 load_repo_info(void)
5963 FILE *pipe = popen("(git rev-parse --git-dir --is-inside-work-tree "
5964 " --show-cdup; git symbolic-ref HEAD) 2>/dev/null", "r");
5966 /* XXX: The line outputted by "--show-cdup" can be empty so
5967 * initialize it to something invalid to make it possible to
5968 * detect whether it has been set or not. */
5971 result = read_properties(pipe, "=", read_repo_info);
5972 if (opt_cdup[0] == ' ')
5979 read_properties(FILE *pipe, const char *separators,
5980 int (*read_property)(char *, size_t, char *, size_t))
5982 char buffer[BUFSIZ];
5989 while (state == OK && (name = fgets(buffer, sizeof(buffer), pipe))) {
5994 name = chomp_string(name);
5995 namelen = strcspn(name, separators);
5997 if (name[namelen]) {
5999 value = chomp_string(name + namelen + 1);
6000 valuelen = strlen(value);
6007 state = read_property(name, namelen, value, valuelen);
6010 if (state != ERR && ferror(pipe))
6023 static void __NORETURN
6026 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6032 static void __NORETURN
6033 die(const char *err, ...)
6039 va_start(args, err);
6040 fputs("tig: ", stderr);
6041 vfprintf(stderr, err, args);
6042 fputs("\n", stderr);
6049 warn(const char *msg, ...)
6053 va_start(args, msg);
6054 fputs("tig warning: ", stderr);
6055 vfprintf(stderr, msg, args);
6056 fputs("\n", stderr);
6061 main(int argc, const char *argv[])
6064 enum request request;
6067 signal(SIGINT, quit);
6069 if (setlocale(LC_ALL, "")) {
6070 char *codeset = nl_langinfo(CODESET);
6072 string_ncopy(opt_codeset, codeset, strlen(codeset));
6075 if (load_repo_info() == ERR)
6076 die("Failed to load repo info.");
6078 if (load_options() == ERR)
6079 die("Failed to load user config.");
6081 if (load_git_config() == ERR)
6082 die("Failed to load repo config.");
6084 request = parse_options(argc, argv);
6085 if (request == REQ_NONE)
6088 /* Require a git repository unless when running in pager mode. */
6089 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6090 die("Not a git repository");
6092 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6095 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6096 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6097 if (opt_iconv == ICONV_NONE)
6098 die("Failed to initialize character set conversion");
6101 if (load_refs() == ERR)
6102 die("Failed to load refs.");
6104 foreach_view (view, i)
6105 view->cmd_env = getenv(view->cmd_env);
6109 while (view_driver(display[current_view], request)) {
6113 foreach_view (view, i)
6115 view = display[current_view];
6117 /* Refresh, accept single keystroke of input */
6118 key = wgetch(status_win);
6120 /* wgetch() with nodelay() enabled returns ERR when there's no
6127 request = get_keybinding(view->keymap, key);
6129 /* Some low-level request handling. This keeps access to
6130 * status_win restricted. */
6134 char *cmd = read_prompt(":");
6136 if (cmd && string_format(opt_cmd, "git %s", cmd)) {
6137 if (strncmp(cmd, "show", 4) && isspace(cmd[4])) {
6138 request = REQ_VIEW_DIFF;
6140 request = REQ_VIEW_PAGER;
6143 /* Always reload^Wrerun commands from the prompt. */
6144 open_view(view, request, OPEN_RELOAD);
6151 case REQ_SEARCH_BACK:
6153 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6154 char *search = read_prompt(prompt);
6157 string_ncopy(opt_search, search, strlen(search));
6162 case REQ_SCREEN_RESIZE:
6166 getmaxyx(stdscr, height, width);
6168 /* Resize the status view and let the view driver take
6169 * care of resizing the displayed views. */
6170 wresize(status_win, 1, width);
6171 mvwin(status_win, height - 1, 0);
6172 wrefresh(status_win);