1 /* Copyright (c) 2006-2009 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>
37 #include <sys/select.h>
48 /* ncurses(3): Must be defined to have extended wide-character functions. */
49 #define _XOPEN_SOURCE_EXTENDED
51 #ifdef HAVE_NCURSESW_NCURSES_H
52 #include <ncursesw/ncurses.h>
54 #ifdef HAVE_NCURSES_NCURSES_H
55 #include <ncurses/ncurses.h>
62 #define __NORETURN __attribute__((__noreturn__))
67 static void __NORETURN die(const char *err, ...);
68 static void warn(const char *msg, ...);
69 static void report(const char *msg, ...);
70 static void set_nonblocking_input(bool loading);
71 static size_t utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve);
72 static bool prompt_yesno(const char *prompt);
73 static int load_refs(void);
75 #define ABS(x) ((x) >= 0 ? (x) : -(x))
76 #define MIN(x, y) ((x) < (y) ? (x) : (y))
78 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
79 #define STRING_SIZE(x) (sizeof(x) - 1)
81 #define SIZEOF_STR 1024 /* Default string size. */
82 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
83 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL. */
84 #define SIZEOF_ARG 32 /* Default argument array size. */
88 #define REVGRAPH_INIT 'I'
89 #define REVGRAPH_MERGE 'M'
90 #define REVGRAPH_BRANCH '+'
91 #define REVGRAPH_COMMIT '*'
92 #define REVGRAPH_BOUND '^'
94 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
96 /* This color name can be used to refer to the default term colors. */
97 #define COLOR_DEFAULT (-1)
99 #define ICONV_NONE ((iconv_t) -1)
101 #define ICONV_CONST /* nothing */
104 /* The format and size of the date column in the main view. */
105 #define DATE_FORMAT "%Y-%m-%d %H:%M"
106 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
108 #define AUTHOR_COLS 20
111 /* The default interval between line numbers. */
112 #define NUMBER_INTERVAL 5
116 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
118 #define NULL_ID "0000000000000000000000000000000000000000"
121 #define GIT_CONFIG "config"
124 /* Some ascii-shorthands fitted into the ncurses namespace. */
126 #define KEY_RETURN '\r'
131 char *name; /* Ref name; tag or head names are shortened. */
132 char id[SIZEOF_REV]; /* Commit SHA1 ID */
133 unsigned int head:1; /* Is it the current HEAD? */
134 unsigned int tag:1; /* Is it a tag? */
135 unsigned int ltag:1; /* If so, is the tag local? */
136 unsigned int remote:1; /* Is it a remote ref? */
137 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
138 unsigned int next:1; /* For ref lists: are there more refs? */
141 static struct ref **get_refs(const char *id);
144 FORMAT_ALL, /* Perform replacement in all arguments. */
145 FORMAT_DASH, /* Perform replacement up until "--". */
146 FORMAT_NONE /* No replacement should be performed. */
149 static bool format_argv(const char *dst[], const char *src[], enum format_flags flags);
158 set_from_int_map(struct int_map *map, size_t map_size,
159 int *value, const char *name, int namelen)
164 for (i = 0; i < map_size; i++)
165 if (namelen == map[i].namelen &&
166 !strncasecmp(name, map[i].name, namelen)) {
167 *value = map[i].value;
180 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
182 if (srclen > dstlen - 1)
185 strncpy(dst, src, srclen);
189 /* Shorthands for safely copying into a fixed buffer. */
191 #define string_copy(dst, src) \
192 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
194 #define string_ncopy(dst, src, srclen) \
195 string_ncopy_do(dst, sizeof(dst), src, srclen)
197 #define string_copy_rev(dst, src) \
198 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
200 #define string_add(dst, from, src) \
201 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
204 chomp_string(char *name)
208 while (isspace(*name))
211 namelen = strlen(name) - 1;
212 while (namelen > 0 && isspace(name[namelen]))
219 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
222 size_t pos = bufpos ? *bufpos : 0;
225 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
231 return pos >= bufsize ? FALSE : TRUE;
234 #define string_format(buf, fmt, args...) \
235 string_nformat(buf, sizeof(buf), NULL, fmt, args)
237 #define string_format_from(buf, from, fmt, args...) \
238 string_nformat(buf, sizeof(buf), from, fmt, args)
241 string_enum_compare(const char *str1, const char *str2, int len)
245 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
247 /* Diff-Header == DIFF_HEADER */
248 for (i = 0; i < len; i++) {
249 if (toupper(str1[i]) == toupper(str2[i]))
252 if (string_enum_sep(str1[i]) &&
253 string_enum_sep(str2[i]))
256 return str1[i] - str2[i];
262 #define prefixcmp(str1, str2) \
263 strncmp(str1, str2, STRING_SIZE(str2))
266 suffixcmp(const char *str, int slen, const char *suffix)
268 size_t len = slen >= 0 ? slen : strlen(str);
269 size_t suffixlen = strlen(suffix);
271 return suffixlen < len ? strcmp(str + len - suffixlen, suffix) : -1;
276 argv_from_string(const char *argv[SIZEOF_ARG], int *argc, char *cmd)
280 while (*cmd && *argc < SIZEOF_ARG && (valuelen = strcspn(cmd, " \t"))) {
281 bool advance = cmd[valuelen] != 0;
284 argv[(*argc)++] = chomp_string(cmd);
285 cmd += valuelen + advance;
288 if (*argc < SIZEOF_ARG)
290 return *argc < SIZEOF_ARG;
294 argv_from_env(const char **argv, const char *name)
296 char *env = argv ? getenv(name) : NULL;
301 if (env && !argv_from_string(argv, &argc, env))
302 die("Too many arguments in the `%s` environment variable", name);
307 * Executing external commands.
311 IO_FD, /* File descriptor based IO. */
312 IO_BG, /* Execute command in the background. */
313 IO_FG, /* Execute command with same std{in,out,err}. */
314 IO_RD, /* Read only fork+exec IO. */
315 IO_WR, /* Write only fork+exec IO. */
319 enum io_type type; /* The requested type of pipe. */
320 const char *dir; /* Directory from which to execute. */
321 pid_t pid; /* Pipe for reading or writing. */
322 int pipe; /* Pipe end for reading or writing. */
323 int error; /* Error status. */
324 const char *argv[SIZEOF_ARG]; /* Shell command arguments. */
325 char *buf; /* Read buffer. */
326 size_t bufalloc; /* Allocated buffer size. */
327 size_t bufsize; /* Buffer content size. */
328 char *bufpos; /* Current buffer position. */
329 unsigned int eof:1; /* Has end of file been reached. */
333 reset_io(struct io *io)
337 io->buf = io->bufpos = NULL;
338 io->bufalloc = io->bufsize = 0;
344 init_io(struct io *io, const char *dir, enum io_type type)
352 init_io_rd(struct io *io, const char *argv[], const char *dir,
353 enum format_flags flags)
355 init_io(io, dir, IO_RD);
356 return format_argv(io->argv, argv, flags);
360 io_open(struct io *io, const char *name)
362 init_io(io, NULL, IO_FD);
363 io->pipe = *name ? open(name, O_RDONLY) : STDIN_FILENO;
364 return io->pipe != -1;
368 kill_io(struct io *io)
370 return kill(io->pid, SIGKILL) != -1;
374 done_io(struct io *io)
385 pid_t waiting = waitpid(pid, &status, 0);
390 report("waitpid failed (%s)", strerror(errno));
394 return waiting == pid &&
395 !WIFSIGNALED(status) &&
397 !WEXITSTATUS(status);
404 start_io(struct io *io)
406 int pipefds[2] = { -1, -1 };
408 if (io->type == IO_FD)
411 if ((io->type == IO_RD || io->type == IO_WR) &&
415 if ((io->pid = fork())) {
416 if (pipefds[!(io->type == IO_WR)] != -1)
417 close(pipefds[!(io->type == IO_WR)]);
419 io->pipe = pipefds[!!(io->type == IO_WR)];
424 if (io->type != IO_FG) {
425 int devnull = open("/dev/null", O_RDWR);
426 int readfd = io->type == IO_WR ? pipefds[0] : devnull;
427 int writefd = io->type == IO_RD ? pipefds[1] : devnull;
429 dup2(readfd, STDIN_FILENO);
430 dup2(writefd, STDOUT_FILENO);
431 dup2(devnull, STDERR_FILENO);
434 if (pipefds[0] != -1)
436 if (pipefds[1] != -1)
440 if (io->dir && *io->dir && chdir(io->dir) == -1)
441 die("Failed to change directory: %s", strerror(errno));
443 execvp(io->argv[0], (char *const*) io->argv);
444 die("Failed to execute program: %s", strerror(errno));
447 if (pipefds[!!(io->type == IO_WR)] != -1)
448 close(pipefds[!!(io->type == IO_WR)]);
453 run_io(struct io *io, const char **argv, const char *dir, enum io_type type)
455 init_io(io, dir, type);
456 if (!format_argv(io->argv, argv, FORMAT_NONE))
462 run_io_do(struct io *io)
464 return start_io(io) && done_io(io);
468 run_io_bg(const char **argv)
472 init_io(&io, NULL, IO_BG);
473 if (!format_argv(io.argv, argv, FORMAT_NONE))
475 return run_io_do(&io);
479 run_io_fg(const char **argv, const char *dir)
483 init_io(&io, dir, IO_FG);
484 if (!format_argv(io.argv, argv, FORMAT_NONE))
486 return run_io_do(&io);
490 run_io_rd(struct io *io, const char **argv, enum format_flags flags)
492 return init_io_rd(io, argv, NULL, flags) && start_io(io);
496 io_eof(struct io *io)
502 io_error(struct io *io)
508 io_strerror(struct io *io)
510 return strerror(io->error);
514 io_can_read(struct io *io)
516 struct timeval tv = { 0, 500 };
520 FD_SET(io->pipe, &fds);
522 return select(io->pipe + 1, &fds, NULL, NULL, &tv) > 0;
526 io_read(struct io *io, void *buf, size_t bufsize)
529 ssize_t readsize = read(io->pipe, buf, bufsize);
531 if (readsize < 0 && (errno == EAGAIN || errno == EINTR))
533 else if (readsize == -1)
535 else if (readsize == 0)
542 io_get(struct io *io, int c, bool can_read)
548 io->buf = io->bufpos = malloc(BUFSIZ);
551 io->bufalloc = BUFSIZ;
556 if (io->bufsize > 0) {
557 eol = memchr(io->bufpos, c, io->bufsize);
559 char *line = io->bufpos;
562 io->bufpos = eol + 1;
563 io->bufsize -= io->bufpos - line;
570 io->bufpos[io->bufsize] = 0;
580 if (io->bufsize > 0 && io->bufpos > io->buf)
581 memmove(io->buf, io->bufpos, io->bufsize);
583 io->bufpos = io->buf;
584 readsize = io_read(io, io->buf + io->bufsize, io->bufalloc - io->bufsize);
587 io->bufsize += readsize;
592 io_write(struct io *io, const void *buf, size_t bufsize)
596 while (!io_error(io) && written < bufsize) {
599 size = write(io->pipe, buf + written, bufsize - written);
600 if (size < 0 && (errno == EAGAIN || errno == EINTR))
608 return written == bufsize;
612 run_io_buf(const char **argv, char buf[], size_t bufsize)
617 if (!run_io_rd(&io, argv, FORMAT_NONE))
620 io.buf = io.bufpos = buf;
621 io.bufalloc = bufsize;
622 error = !io_get(&io, '\n', TRUE) && io_error(&io);
625 return done_io(&io) || error;
628 static int read_properties(struct io *io, const char *separators, int (*read)(char *, size_t, char *, size_t));
635 /* XXX: Keep the view request first and in sync with views[]. */ \
636 REQ_GROUP("View switching") \
637 REQ_(VIEW_MAIN, "Show main view"), \
638 REQ_(VIEW_DIFF, "Show diff view"), \
639 REQ_(VIEW_LOG, "Show log view"), \
640 REQ_(VIEW_TREE, "Show tree view"), \
641 REQ_(VIEW_BLOB, "Show blob view"), \
642 REQ_(VIEW_BLAME, "Show blame view"), \
643 REQ_(VIEW_HELP, "Show help page"), \
644 REQ_(VIEW_PAGER, "Show pager view"), \
645 REQ_(VIEW_STATUS, "Show status view"), \
646 REQ_(VIEW_STAGE, "Show stage view"), \
648 REQ_GROUP("View manipulation") \
649 REQ_(ENTER, "Enter current line and scroll"), \
650 REQ_(NEXT, "Move to next"), \
651 REQ_(PREVIOUS, "Move to previous"), \
652 REQ_(VIEW_NEXT, "Move focus to next view"), \
653 REQ_(REFRESH, "Reload and refresh"), \
654 REQ_(MAXIMIZE, "Maximize the current view"), \
655 REQ_(VIEW_CLOSE, "Close the current view"), \
656 REQ_(QUIT, "Close all views and quit"), \
658 REQ_GROUP("View specific requests") \
659 REQ_(STATUS_UPDATE, "Update file status"), \
660 REQ_(STATUS_REVERT, "Revert file changes"), \
661 REQ_(STATUS_MERGE, "Merge file using external tool"), \
662 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
663 REQ_(TREE_PARENT, "Switch to parent directory in tree view"), \
665 REQ_GROUP("Cursor navigation") \
666 REQ_(MOVE_UP, "Move cursor one line up"), \
667 REQ_(MOVE_DOWN, "Move cursor one line down"), \
668 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
669 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
670 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
671 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
673 REQ_GROUP("Scrolling") \
674 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
675 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
676 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
677 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
679 REQ_GROUP("Searching") \
680 REQ_(SEARCH, "Search the view"), \
681 REQ_(SEARCH_BACK, "Search backwards in the view"), \
682 REQ_(FIND_NEXT, "Find next search match"), \
683 REQ_(FIND_PREV, "Find previous search match"), \
685 REQ_GROUP("Option manipulation") \
686 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
687 REQ_(TOGGLE_DATE, "Toggle date display"), \
688 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
689 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
690 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
693 REQ_(PROMPT, "Bring up the prompt"), \
694 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
695 REQ_(SCREEN_RESIZE, "Resize the screen"), \
696 REQ_(SHOW_VERSION, "Show version information"), \
697 REQ_(STOP_LOADING, "Stop all loading views"), \
698 REQ_(EDIT, "Open in editor"), \
699 REQ_(NONE, "Do nothing")
702 /* User action requests. */
704 #define REQ_GROUP(help)
705 #define REQ_(req, help) REQ_##req
707 /* Offset all requests to avoid conflicts with ncurses getch values. */
708 REQ_OFFSET = KEY_MAX + 1,
715 struct request_info {
716 enum request request;
722 static struct request_info req_info[] = {
723 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
724 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
731 get_request(const char *name)
733 int namelen = strlen(name);
736 for (i = 0; i < ARRAY_SIZE(req_info); i++)
737 if (req_info[i].namelen == namelen &&
738 !string_enum_compare(req_info[i].name, name, namelen))
739 return req_info[i].request;
749 static const char usage[] =
750 "tig " TIG_VERSION " (" __DATE__ ")\n"
752 "Usage: tig [options] [revs] [--] [paths]\n"
753 " or: tig show [options] [revs] [--] [paths]\n"
754 " or: tig blame [rev] path\n"
756 " or: tig < [git command output]\n"
759 " -v, --version Show version and exit\n"
760 " -h, --help Show help message and exit";
762 /* Option and state variables. */
763 static bool opt_date = TRUE;
764 static bool opt_author = TRUE;
765 static bool opt_line_number = FALSE;
766 static bool opt_line_graphics = TRUE;
767 static bool opt_rev_graph = FALSE;
768 static bool opt_show_refs = TRUE;
769 static int opt_num_interval = NUMBER_INTERVAL;
770 static int opt_tab_size = TAB_SIZE;
771 static int opt_author_cols = AUTHOR_COLS-1;
772 static char opt_path[SIZEOF_STR] = "";
773 static char opt_file[SIZEOF_STR] = "";
774 static char opt_ref[SIZEOF_REF] = "";
775 static char opt_head[SIZEOF_REF] = "";
776 static char opt_head_rev[SIZEOF_REV] = "";
777 static char opt_remote[SIZEOF_REF] = "";
778 static char opt_encoding[20] = "UTF-8";
779 static bool opt_utf8 = TRUE;
780 static char opt_codeset[20] = "UTF-8";
781 static iconv_t opt_iconv = ICONV_NONE;
782 static char opt_search[SIZEOF_STR] = "";
783 static char opt_cdup[SIZEOF_STR] = "";
784 static char opt_git_dir[SIZEOF_STR] = "";
785 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
786 static char opt_editor[SIZEOF_STR] = "";
787 static FILE *opt_tty = NULL;
789 #define is_initial_commit() (!*opt_head_rev)
790 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || !strcmp(opt_head_rev, (rev)))
793 parse_options(int argc, const char *argv[], const char ***run_argv)
795 enum request request = REQ_VIEW_MAIN;
796 const char *subcommand;
797 bool seen_dashdash = FALSE;
798 /* XXX: This is vulnerable to the user overriding options
799 * required for the main view parser. */
800 const char *custom_argv[SIZEOF_ARG] = {
801 "git", "log", "--no-color", "--pretty=raw", "--parents",
806 if (!isatty(STDIN_FILENO))
807 return REQ_VIEW_PAGER;
810 return REQ_VIEW_MAIN;
812 subcommand = argv[1];
813 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
814 if (!strcmp(subcommand, "-S"))
815 warn("`-S' has been deprecated; use `tig status' instead");
817 warn("ignoring arguments after `%s'", subcommand);
818 return REQ_VIEW_STATUS;
820 } else if (!strcmp(subcommand, "blame")) {
821 if (argc <= 2 || argc > 4)
822 die("invalid number of options to blame\n\n%s", usage);
826 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
830 string_ncopy(opt_file, argv[i], strlen(argv[i]));
831 return REQ_VIEW_BLAME;
833 } else if (!strcmp(subcommand, "show")) {
834 request = REQ_VIEW_DIFF;
836 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
837 request = subcommand[0] == 'l' ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
838 warn("`tig %s' has been deprecated", subcommand);
845 custom_argv[1] = subcommand;
849 for (i = 1 + !!subcommand; i < argc; i++) {
850 const char *opt = argv[i];
852 if (seen_dashdash || !strcmp(opt, "--")) {
853 seen_dashdash = TRUE;
855 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
856 printf("tig version %s\n", TIG_VERSION);
859 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
860 printf("%s\n", usage);
864 custom_argv[j++] = opt;
865 if (j >= ARRAY_SIZE(custom_argv))
866 die("command too long");
869 custom_argv[j] = NULL;
870 *run_argv = custom_argv;
877 * Line-oriented content detection.
881 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
882 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
883 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
884 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
885 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
886 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
887 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
888 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
889 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
890 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
891 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
892 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
893 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
894 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
895 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
896 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
897 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
898 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
899 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
900 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
901 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
902 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
903 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
904 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
905 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
906 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
907 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
908 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
909 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
910 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
911 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
912 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
913 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
914 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
915 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
916 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
917 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
918 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
919 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
920 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
921 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
922 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
923 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
924 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
925 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
926 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
927 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
928 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
929 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
930 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
931 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
932 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
933 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
934 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
937 #define LINE(type, line, fg, bg, attr) \
945 const char *name; /* Option name. */
946 int namelen; /* Size of option name. */
947 const char *line; /* The start of line to match. */
948 int linelen; /* Size of string to match. */
949 int fg, bg, attr; /* Color and text attributes for the lines. */
952 static struct line_info line_info[] = {
953 #define LINE(type, line, fg, bg, attr) \
954 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
959 static enum line_type
960 get_line_type(const char *line)
962 int linelen = strlen(line);
965 for (type = 0; type < ARRAY_SIZE(line_info); type++)
966 /* Case insensitive search matches Signed-off-by lines better. */
967 if (linelen >= line_info[type].linelen &&
968 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
975 get_line_attr(enum line_type type)
977 assert(type < ARRAY_SIZE(line_info));
978 return COLOR_PAIR(type) | line_info[type].attr;
981 static struct line_info *
982 get_line_info(const char *name)
984 size_t namelen = strlen(name);
987 for (type = 0; type < ARRAY_SIZE(line_info); type++)
988 if (namelen == line_info[type].namelen &&
989 !string_enum_compare(line_info[type].name, name, namelen))
990 return &line_info[type];
998 int default_bg = line_info[LINE_DEFAULT].bg;
999 int default_fg = line_info[LINE_DEFAULT].fg;
1000 enum line_type type;
1004 if (assume_default_colors(default_fg, default_bg) == ERR) {
1005 default_bg = COLOR_BLACK;
1006 default_fg = COLOR_WHITE;
1009 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
1010 struct line_info *info = &line_info[type];
1011 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
1012 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
1014 init_pair(type, fg, bg);
1019 enum line_type type;
1022 unsigned int selected:1;
1023 unsigned int dirty:1;
1024 unsigned int cleareol:1;
1026 void *data; /* User data */
1036 enum request request;
1039 static struct keybinding default_keybindings[] = {
1040 /* View switching */
1041 { 'm', REQ_VIEW_MAIN },
1042 { 'd', REQ_VIEW_DIFF },
1043 { 'l', REQ_VIEW_LOG },
1044 { 't', REQ_VIEW_TREE },
1045 { 'f', REQ_VIEW_BLOB },
1046 { 'B', REQ_VIEW_BLAME },
1047 { 'p', REQ_VIEW_PAGER },
1048 { 'h', REQ_VIEW_HELP },
1049 { 'S', REQ_VIEW_STATUS },
1050 { 'c', REQ_VIEW_STAGE },
1052 /* View manipulation */
1053 { 'q', REQ_VIEW_CLOSE },
1054 { KEY_TAB, REQ_VIEW_NEXT },
1055 { KEY_RETURN, REQ_ENTER },
1056 { KEY_UP, REQ_PREVIOUS },
1057 { KEY_DOWN, REQ_NEXT },
1058 { 'R', REQ_REFRESH },
1059 { KEY_F(5), REQ_REFRESH },
1060 { 'O', REQ_MAXIMIZE },
1062 /* Cursor navigation */
1063 { 'k', REQ_MOVE_UP },
1064 { 'j', REQ_MOVE_DOWN },
1065 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1066 { KEY_END, REQ_MOVE_LAST_LINE },
1067 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1068 { ' ', REQ_MOVE_PAGE_DOWN },
1069 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1070 { 'b', REQ_MOVE_PAGE_UP },
1071 { '-', REQ_MOVE_PAGE_UP },
1074 { KEY_IC, REQ_SCROLL_LINE_UP },
1075 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1076 { 'w', REQ_SCROLL_PAGE_UP },
1077 { 's', REQ_SCROLL_PAGE_DOWN },
1080 { '/', REQ_SEARCH },
1081 { '?', REQ_SEARCH_BACK },
1082 { 'n', REQ_FIND_NEXT },
1083 { 'N', REQ_FIND_PREV },
1087 { 'z', REQ_STOP_LOADING },
1088 { 'v', REQ_SHOW_VERSION },
1089 { 'r', REQ_SCREEN_REDRAW },
1090 { '.', REQ_TOGGLE_LINENO },
1091 { 'D', REQ_TOGGLE_DATE },
1092 { 'A', REQ_TOGGLE_AUTHOR },
1093 { 'g', REQ_TOGGLE_REV_GRAPH },
1094 { 'F', REQ_TOGGLE_REFS },
1095 { ':', REQ_PROMPT },
1096 { 'u', REQ_STATUS_UPDATE },
1097 { '!', REQ_STATUS_REVERT },
1098 { 'M', REQ_STATUS_MERGE },
1099 { '@', REQ_STAGE_NEXT },
1100 { ',', REQ_TREE_PARENT },
1103 /* Using the ncurses SIGWINCH handler. */
1104 { KEY_RESIZE, REQ_SCREEN_RESIZE },
1107 #define KEYMAP_INFO \
1121 #define KEYMAP_(name) KEYMAP_##name
1126 static struct int_map keymap_table[] = {
1127 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
1132 #define set_keymap(map, name) \
1133 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
1135 struct keybinding_table {
1136 struct keybinding *data;
1140 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1143 add_keybinding(enum keymap keymap, enum request request, int key)
1145 struct keybinding_table *table = &keybindings[keymap];
1147 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1149 die("Failed to allocate keybinding");
1150 table->data[table->size].alias = key;
1151 table->data[table->size++].request = request;
1154 /* Looks for a key binding first in the given map, then in the generic map, and
1155 * lastly in the default keybindings. */
1157 get_keybinding(enum keymap keymap, int key)
1161 for (i = 0; i < keybindings[keymap].size; i++)
1162 if (keybindings[keymap].data[i].alias == key)
1163 return keybindings[keymap].data[i].request;
1165 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1166 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1167 return keybindings[KEYMAP_GENERIC].data[i].request;
1169 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1170 if (default_keybindings[i].alias == key)
1171 return default_keybindings[i].request;
1173 return (enum request) key;
1182 static struct key key_table[] = {
1183 { "Enter", KEY_RETURN },
1185 { "Backspace", KEY_BACKSPACE },
1187 { "Escape", KEY_ESC },
1188 { "Left", KEY_LEFT },
1189 { "Right", KEY_RIGHT },
1191 { "Down", KEY_DOWN },
1192 { "Insert", KEY_IC },
1193 { "Delete", KEY_DC },
1195 { "Home", KEY_HOME },
1197 { "PageUp", KEY_PPAGE },
1198 { "PageDown", KEY_NPAGE },
1208 { "F10", KEY_F(10) },
1209 { "F11", KEY_F(11) },
1210 { "F12", KEY_F(12) },
1214 get_key_value(const char *name)
1218 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1219 if (!strcasecmp(key_table[i].name, name))
1220 return key_table[i].value;
1222 if (strlen(name) == 1 && isprint(*name))
1229 get_key_name(int key_value)
1231 static char key_char[] = "'X'";
1232 const char *seq = NULL;
1235 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1236 if (key_table[key].value == key_value)
1237 seq = key_table[key].name;
1241 isprint(key_value)) {
1242 key_char[1] = (char) key_value;
1246 return seq ? seq : "(no key)";
1250 get_key(enum request request)
1252 static char buf[BUFSIZ];
1259 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1260 struct keybinding *keybinding = &default_keybindings[i];
1262 if (keybinding->request != request)
1265 if (!string_format_from(buf, &pos, "%s%s", sep,
1266 get_key_name(keybinding->alias)))
1267 return "Too many keybindings!";
1274 struct run_request {
1277 const char *argv[SIZEOF_ARG];
1280 static struct run_request *run_request;
1281 static size_t run_requests;
1284 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1286 struct run_request *req;
1288 if (argc >= ARRAY_SIZE(req->argv) - 1)
1291 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1296 req = &run_request[run_requests];
1297 req->keymap = keymap;
1299 req->argv[0] = NULL;
1301 if (!format_argv(req->argv, argv, FORMAT_NONE))
1304 return REQ_NONE + ++run_requests;
1307 static struct run_request *
1308 get_run_request(enum request request)
1310 if (request <= REQ_NONE)
1312 return &run_request[request - REQ_NONE - 1];
1316 add_builtin_run_requests(void)
1318 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1319 const char *gc[] = { "git", "gc", NULL };
1326 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1327 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1331 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1334 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1335 if (req != REQ_NONE)
1336 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1341 * User config file handling.
1344 static struct int_map color_map[] = {
1345 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1357 #define set_color(color, name) \
1358 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1360 static struct int_map attr_map[] = {
1361 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1368 ATTR_MAP(UNDERLINE),
1371 #define set_attribute(attr, name) \
1372 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1374 static int config_lineno;
1375 static bool config_errors;
1376 static const char *config_msg;
1378 /* Wants: object fgcolor bgcolor [attr] */
1380 option_color_command(int argc, const char *argv[])
1382 struct line_info *info;
1384 if (argc != 3 && argc != 4) {
1385 config_msg = "Wrong number of arguments given to color command";
1389 info = get_line_info(argv[0]);
1391 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1392 info = get_line_info("delimiter");
1394 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1395 info = get_line_info("date");
1398 config_msg = "Unknown color name";
1403 if (set_color(&info->fg, argv[1]) == ERR ||
1404 set_color(&info->bg, argv[2]) == ERR) {
1405 config_msg = "Unknown color";
1409 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1410 config_msg = "Unknown attribute";
1417 static bool parse_bool(const char *s)
1419 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1420 !strcmp(s, "yes")) ? TRUE : FALSE;
1424 parse_int(const char *s, int default_value, int min, int max)
1426 int value = atoi(s);
1428 return (value < min || value > max) ? default_value : value;
1431 /* Wants: name = value */
1433 option_set_command(int argc, const char *argv[])
1436 config_msg = "Wrong number of arguments given to set command";
1440 if (strcmp(argv[1], "=")) {
1441 config_msg = "No value assigned";
1445 if (!strcmp(argv[0], "show-author")) {
1446 opt_author = parse_bool(argv[2]);
1450 if (!strcmp(argv[0], "show-date")) {
1451 opt_date = parse_bool(argv[2]);
1455 if (!strcmp(argv[0], "show-rev-graph")) {
1456 opt_rev_graph = parse_bool(argv[2]);
1460 if (!strcmp(argv[0], "show-refs")) {
1461 opt_show_refs = parse_bool(argv[2]);
1465 if (!strcmp(argv[0], "show-line-numbers")) {
1466 opt_line_number = parse_bool(argv[2]);
1470 if (!strcmp(argv[0], "line-graphics")) {
1471 opt_line_graphics = parse_bool(argv[2]);
1475 if (!strcmp(argv[0], "line-number-interval")) {
1476 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1480 if (!strcmp(argv[0], "author-width")) {
1481 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1485 if (!strcmp(argv[0], "tab-size")) {
1486 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1490 if (!strcmp(argv[0], "commit-encoding")) {
1491 const char *arg = argv[2];
1492 int arglen = strlen(arg);
1497 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1498 config_msg = "Unmatched quotation";
1501 arg += 1; arglen -= 2;
1503 string_ncopy(opt_encoding, arg, strlen(arg));
1508 config_msg = "Unknown variable name";
1512 /* Wants: mode request key */
1514 option_bind_command(int argc, const char *argv[])
1516 enum request request;
1521 config_msg = "Wrong number of arguments given to bind command";
1525 if (set_keymap(&keymap, argv[0]) == ERR) {
1526 config_msg = "Unknown key map";
1530 key = get_key_value(argv[1]);
1532 config_msg = "Unknown key";
1536 request = get_request(argv[2]);
1537 if (request == REQ_NONE) {
1538 const char *obsolete[] = { "cherry-pick" };
1539 size_t namelen = strlen(argv[2]);
1542 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1543 if (namelen == strlen(obsolete[i]) &&
1544 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1545 config_msg = "Obsolete request name";
1550 if (request == REQ_NONE && *argv[2]++ == '!')
1551 request = add_run_request(keymap, key, argc - 2, argv + 2);
1552 if (request == REQ_NONE) {
1553 config_msg = "Unknown request name";
1557 add_keybinding(keymap, request, key);
1563 set_option(const char *opt, char *value)
1565 const char *argv[SIZEOF_ARG];
1568 if (!argv_from_string(argv, &argc, value)) {
1569 config_msg = "Too many option arguments";
1573 if (!strcmp(opt, "color"))
1574 return option_color_command(argc, argv);
1576 if (!strcmp(opt, "set"))
1577 return option_set_command(argc, argv);
1579 if (!strcmp(opt, "bind"))
1580 return option_bind_command(argc, argv);
1582 config_msg = "Unknown option command";
1587 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1592 config_msg = "Internal error";
1594 /* Check for comment markers, since read_properties() will
1595 * only ensure opt and value are split at first " \t". */
1596 optlen = strcspn(opt, "#");
1600 if (opt[optlen] != 0) {
1601 config_msg = "No option value";
1605 /* Look for comment endings in the value. */
1606 size_t len = strcspn(value, "#");
1608 if (len < valuelen) {
1610 value[valuelen] = 0;
1613 status = set_option(opt, value);
1616 if (status == ERR) {
1617 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1618 config_lineno, (int) optlen, opt, config_msg);
1619 config_errors = TRUE;
1622 /* Always keep going if errors are encountered. */
1627 load_option_file(const char *path)
1631 /* It's ok that the file doesn't exist. */
1632 if (!io_open(&io, path))
1636 config_errors = FALSE;
1638 if (read_properties(&io, " \t", read_option) == ERR ||
1639 config_errors == TRUE)
1640 fprintf(stderr, "Errors while loading %s.\n", path);
1646 const char *home = getenv("HOME");
1647 const char *tigrc_user = getenv("TIGRC_USER");
1648 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1649 char buf[SIZEOF_STR];
1651 add_builtin_run_requests();
1653 if (!tigrc_system) {
1654 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1658 load_option_file(tigrc_system);
1661 if (!home || !string_format(buf, "%s/.tigrc", home))
1665 load_option_file(tigrc_user);
1678 /* The display array of active views and the index of the current view. */
1679 static struct view *display[2];
1680 static unsigned int current_view;
1682 /* Reading from the prompt? */
1683 static bool input_mode = FALSE;
1685 #define foreach_displayed_view(view, i) \
1686 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1688 #define displayed_views() (display[1] != NULL ? 2 : 1)
1690 /* Current head and commit ID */
1691 static char ref_blob[SIZEOF_REF] = "";
1692 static char ref_commit[SIZEOF_REF] = "HEAD";
1693 static char ref_head[SIZEOF_REF] = "HEAD";
1696 const char *name; /* View name */
1697 const char *cmd_env; /* Command line set via environment */
1698 const char *id; /* Points to either of ref_{head,commit,blob} */
1700 struct view_ops *ops; /* View operations */
1702 enum keymap keymap; /* What keymap does this view have */
1703 bool git_dir; /* Whether the view requires a git directory. */
1705 char ref[SIZEOF_REF]; /* Hovered commit reference */
1706 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1708 int height, width; /* The width and height of the main window */
1709 WINDOW *win; /* The main window */
1710 WINDOW *title; /* The title window living below the main window */
1713 unsigned long offset; /* Offset of the window top */
1714 unsigned long lineno; /* Current line number */
1717 char grep[SIZEOF_STR]; /* Search string */
1718 regex_t *regex; /* Pre-compiled regex */
1720 /* If non-NULL, points to the view that opened this view. If this view
1721 * is closed tig will switch back to the parent view. */
1722 struct view *parent;
1725 size_t lines; /* Total number of lines */
1726 struct line *line; /* Line index */
1727 size_t line_alloc; /* Total number of allocated lines */
1728 unsigned int digits; /* Number of digits in the lines member. */
1731 struct line *curline; /* Line currently being drawn. */
1732 enum line_type curtype; /* Attribute currently used for drawing. */
1733 unsigned long col; /* Column when drawing. */
1743 /* What type of content being displayed. Used in the title bar. */
1745 /* Default command arguments. */
1747 /* Open and reads in all view content. */
1748 bool (*open)(struct view *view);
1749 /* Read one line; updates view->line. */
1750 bool (*read)(struct view *view, char *data);
1751 /* Draw one line; @lineno must be < view->height. */
1752 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1753 /* Depending on view handle a special requests. */
1754 enum request (*request)(struct view *view, enum request request, struct line *line);
1755 /* Search for regex in a line. */
1756 bool (*grep)(struct view *view, struct line *line);
1758 void (*select)(struct view *view, struct line *line);
1761 static struct view_ops blame_ops;
1762 static struct view_ops blob_ops;
1763 static struct view_ops diff_ops;
1764 static struct view_ops help_ops;
1765 static struct view_ops log_ops;
1766 static struct view_ops main_ops;
1767 static struct view_ops pager_ops;
1768 static struct view_ops stage_ops;
1769 static struct view_ops status_ops;
1770 static struct view_ops tree_ops;
1772 #define VIEW_STR(name, env, ref, ops, map, git) \
1773 { name, #env, ref, ops, map, git }
1775 #define VIEW_(id, name, ops, git, ref) \
1776 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1779 static struct view views[] = {
1780 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1781 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1782 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1783 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1784 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1785 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1786 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1787 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1788 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1789 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1792 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1793 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1795 #define foreach_view(view, i) \
1796 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1798 #define view_is_displayed(view) \
1799 (view == display[0] || view == display[1])
1806 static int line_graphics[] = {
1807 /* LINE_GRAPHIC_VLINE: */ '|'
1811 set_view_attr(struct view *view, enum line_type type)
1813 if (!view->curline->selected && view->curtype != type) {
1814 wattrset(view->win, get_line_attr(type));
1815 wchgat(view->win, -1, 0, type, NULL);
1816 view->curtype = type;
1821 draw_chars(struct view *view, enum line_type type, const char *string,
1822 int max_len, bool use_tilde)
1826 int trimmed = FALSE;
1832 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1834 col = len = strlen(string);
1835 if (len > max_len) {
1839 col = len = max_len;
1844 set_view_attr(view, type);
1845 waddnstr(view->win, string, len);
1846 if (trimmed && use_tilde) {
1847 set_view_attr(view, LINE_DELIMITER);
1848 waddch(view->win, '~');
1856 draw_space(struct view *view, enum line_type type, int max, int spaces)
1858 static char space[] = " ";
1861 spaces = MIN(max, spaces);
1863 while (spaces > 0) {
1864 int len = MIN(spaces, sizeof(space) - 1);
1866 col += draw_chars(view, type, space, spaces, FALSE);
1874 draw_lineno(struct view *view, unsigned int lineno)
1877 int digits3 = view->digits < 3 ? 3 : view->digits;
1878 int max_number = MIN(digits3, STRING_SIZE(number));
1879 int max = view->width - view->col;
1882 if (max < max_number)
1885 lineno += view->offset + 1;
1886 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1887 static char fmt[] = "%1ld";
1889 if (view->digits <= 9)
1890 fmt[1] = '0' + digits3;
1892 if (!string_format(number, fmt, lineno))
1894 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1896 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1900 set_view_attr(view, LINE_DEFAULT);
1901 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1906 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1909 return view->width - view->col <= 0;
1913 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1915 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1916 return view->width - view->col <= 0;
1920 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1922 int max = view->width - view->col;
1928 set_view_attr(view, type);
1929 /* Using waddch() instead of waddnstr() ensures that
1930 * they'll be rendered correctly for the cursor line. */
1931 for (i = 0; i < size; i++)
1932 waddch(view->win, graphic[i]);
1936 waddch(view->win, ' ');
1940 return view->width - view->col <= 0;
1944 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1946 int max = MIN(view->width - view->col, len);
1950 col = draw_chars(view, type, text, max - 1, trim);
1952 col = draw_space(view, type, max - 1, max - 1);
1954 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1955 return view->width - view->col <= 0;
1959 draw_date(struct view *view, struct tm *time)
1961 char buf[DATE_COLS];
1966 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1967 date = timelen ? buf : NULL;
1969 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1973 draw_view_line(struct view *view, unsigned int lineno)
1976 bool selected = (view->offset + lineno == view->lineno);
1979 assert(view_is_displayed(view));
1981 if (view->offset + lineno >= view->lines)
1984 line = &view->line[view->offset + lineno];
1986 wmove(view->win, lineno, 0);
1988 wclrtoeol(view->win);
1990 view->curline = line;
1991 view->curtype = LINE_NONE;
1992 line->selected = FALSE;
1993 line->dirty = line->cleareol = 0;
1996 set_view_attr(view, LINE_CURSOR);
1997 line->selected = TRUE;
1998 view->ops->select(view, line);
2001 scrollok(view->win, FALSE);
2002 draw_ok = view->ops->draw(view, line, lineno);
2003 scrollok(view->win, TRUE);
2009 redraw_view_dirty(struct view *view)
2014 for (lineno = 0; lineno < view->height; lineno++) {
2015 if (view->offset + lineno >= view->lines)
2017 if (!view->line[view->offset + lineno].dirty)
2020 if (!draw_view_line(view, lineno))
2026 redrawwin(view->win);
2028 wnoutrefresh(view->win);
2030 wrefresh(view->win);
2034 redraw_view_from(struct view *view, int lineno)
2036 assert(0 <= lineno && lineno < view->height);
2038 for (; lineno < view->height; lineno++) {
2039 if (!draw_view_line(view, lineno))
2043 redrawwin(view->win);
2045 wnoutrefresh(view->win);
2047 wrefresh(view->win);
2051 redraw_view(struct view *view)
2054 redraw_view_from(view, 0);
2059 update_view_title(struct view *view)
2061 char buf[SIZEOF_STR];
2062 char state[SIZEOF_STR];
2063 size_t bufpos = 0, statelen = 0;
2065 assert(view_is_displayed(view));
2067 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2068 unsigned int view_lines = view->offset + view->height;
2069 unsigned int lines = view->lines
2070 ? MIN(view_lines, view->lines) * 100 / view->lines
2073 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2082 time_t secs = time(NULL) - view->start_time;
2084 /* Three git seconds are a long time ... */
2086 string_format_from(state, &statelen, " loading %lds", secs);
2089 string_format_from(buf, &bufpos, "[%s]", view->name);
2090 if (*view->ref && bufpos < view->width) {
2091 size_t refsize = strlen(view->ref);
2092 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2094 if (minsize < view->width)
2095 refsize = view->width - minsize + 7;
2096 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2099 if (statelen && bufpos < view->width) {
2100 string_format_from(buf, &bufpos, "%s", state);
2103 if (view == display[current_view])
2104 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2106 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2108 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2109 wclrtoeol(view->title);
2110 wmove(view->title, 0, view->width - 1);
2113 wnoutrefresh(view->title);
2115 wrefresh(view->title);
2119 resize_display(void)
2122 struct view *base = display[0];
2123 struct view *view = display[1] ? display[1] : display[0];
2125 /* Setup window dimensions */
2127 getmaxyx(stdscr, base->height, base->width);
2129 /* Make room for the status window. */
2133 /* Horizontal split. */
2134 view->width = base->width;
2135 view->height = SCALE_SPLIT_VIEW(base->height);
2136 base->height -= view->height;
2138 /* Make room for the title bar. */
2142 /* Make room for the title bar. */
2147 foreach_displayed_view (view, i) {
2149 view->win = newwin(view->height, 0, offset, 0);
2151 die("Failed to create %s view", view->name);
2153 scrollok(view->win, TRUE);
2155 view->title = newwin(1, 0, offset + view->height, 0);
2157 die("Failed to create title window");
2160 wresize(view->win, view->height, view->width);
2161 mvwin(view->win, offset, 0);
2162 mvwin(view->title, offset + view->height, 0);
2165 offset += view->height + 1;
2170 redraw_display(void)
2175 foreach_displayed_view (view, i) {
2177 update_view_title(view);
2182 update_display_cursor(struct view *view)
2184 /* Move the cursor to the right-most column of the cursor line.
2186 * XXX: This could turn out to be a bit expensive, but it ensures that
2187 * the cursor does not jump around. */
2189 wmove(view->win, view->lineno - view->offset, view->width - 1);
2190 wrefresh(view->win);
2198 /* Scrolling backend */
2200 do_scroll_view(struct view *view, int lines)
2202 bool redraw_current_line = FALSE;
2204 /* The rendering expects the new offset. */
2205 view->offset += lines;
2207 assert(0 <= view->offset && view->offset < view->lines);
2210 /* Move current line into the view. */
2211 if (view->lineno < view->offset) {
2212 view->lineno = view->offset;
2213 redraw_current_line = TRUE;
2214 } else if (view->lineno >= view->offset + view->height) {
2215 view->lineno = view->offset + view->height - 1;
2216 redraw_current_line = TRUE;
2219 assert(view->offset <= view->lineno && view->lineno < view->lines);
2221 /* Redraw the whole screen if scrolling is pointless. */
2222 if (view->height < ABS(lines)) {
2226 int line = lines > 0 ? view->height - lines : 0;
2227 int end = line + ABS(lines);
2229 wscrl(view->win, lines);
2231 for (; line < end; line++) {
2232 if (!draw_view_line(view, line))
2236 if (redraw_current_line)
2237 draw_view_line(view, view->lineno - view->offset);
2240 redrawwin(view->win);
2241 wrefresh(view->win);
2245 /* Scroll frontend */
2247 scroll_view(struct view *view, enum request request)
2251 assert(view_is_displayed(view));
2254 case REQ_SCROLL_PAGE_DOWN:
2255 lines = view->height;
2256 case REQ_SCROLL_LINE_DOWN:
2257 if (view->offset + lines > view->lines)
2258 lines = view->lines - view->offset;
2260 if (lines == 0 || view->offset + view->height >= view->lines) {
2261 report("Cannot scroll beyond the last line");
2266 case REQ_SCROLL_PAGE_UP:
2267 lines = view->height;
2268 case REQ_SCROLL_LINE_UP:
2269 if (lines > view->offset)
2270 lines = view->offset;
2273 report("Cannot scroll beyond the first line");
2281 die("request %d not handled in switch", request);
2284 do_scroll_view(view, lines);
2289 move_view(struct view *view, enum request request)
2291 int scroll_steps = 0;
2295 case REQ_MOVE_FIRST_LINE:
2296 steps = -view->lineno;
2299 case REQ_MOVE_LAST_LINE:
2300 steps = view->lines - view->lineno - 1;
2303 case REQ_MOVE_PAGE_UP:
2304 steps = view->height > view->lineno
2305 ? -view->lineno : -view->height;
2308 case REQ_MOVE_PAGE_DOWN:
2309 steps = view->lineno + view->height >= view->lines
2310 ? view->lines - view->lineno - 1 : view->height;
2322 die("request %d not handled in switch", request);
2325 if (steps <= 0 && view->lineno == 0) {
2326 report("Cannot move beyond the first line");
2329 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2330 report("Cannot move beyond the last line");
2334 /* Move the current line */
2335 view->lineno += steps;
2336 assert(0 <= view->lineno && view->lineno < view->lines);
2338 /* Check whether the view needs to be scrolled */
2339 if (view->lineno < view->offset ||
2340 view->lineno >= view->offset + view->height) {
2341 scroll_steps = steps;
2342 if (steps < 0 && -steps > view->offset) {
2343 scroll_steps = -view->offset;
2345 } else if (steps > 0) {
2346 if (view->lineno == view->lines - 1 &&
2347 view->lines > view->height) {
2348 scroll_steps = view->lines - view->offset - 1;
2349 if (scroll_steps >= view->height)
2350 scroll_steps -= view->height - 1;
2355 if (!view_is_displayed(view)) {
2356 view->offset += scroll_steps;
2357 assert(0 <= view->offset && view->offset < view->lines);
2358 view->ops->select(view, &view->line[view->lineno]);
2362 /* Repaint the old "current" line if we be scrolling */
2363 if (ABS(steps) < view->height)
2364 draw_view_line(view, view->lineno - steps - view->offset);
2367 do_scroll_view(view, scroll_steps);
2371 /* Draw the current line */
2372 draw_view_line(view, view->lineno - view->offset);
2374 redrawwin(view->win);
2375 wrefresh(view->win);
2384 static void search_view(struct view *view, enum request request);
2387 find_next_line(struct view *view, unsigned long lineno, struct line *line)
2389 assert(view_is_displayed(view));
2391 if (!view->ops->grep(view, line))
2394 if (lineno - view->offset >= view->height) {
2395 view->offset = lineno;
2396 view->lineno = lineno;
2400 unsigned long old_lineno = view->lineno - view->offset;
2402 view->lineno = lineno;
2403 draw_view_line(view, old_lineno);
2405 draw_view_line(view, view->lineno - view->offset);
2406 redrawwin(view->win);
2407 wrefresh(view->win);
2410 report("Line %ld matches '%s'", lineno + 1, view->grep);
2415 find_next(struct view *view, enum request request)
2417 unsigned long lineno = view->lineno;
2422 report("No previous search");
2424 search_view(view, request);
2434 case REQ_SEARCH_BACK:
2443 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2444 lineno += direction;
2446 /* Note, lineno is unsigned long so will wrap around in which case it
2447 * will become bigger than view->lines. */
2448 for (; lineno < view->lines; lineno += direction) {
2449 struct line *line = &view->line[lineno];
2451 if (find_next_line(view, lineno, line))
2455 report("No match found for '%s'", view->grep);
2459 search_view(struct view *view, enum request request)
2464 regfree(view->regex);
2467 view->regex = calloc(1, sizeof(*view->regex));
2472 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2473 if (regex_err != 0) {
2474 char buf[SIZEOF_STR] = "unknown error";
2476 regerror(regex_err, view->regex, buf, sizeof(buf));
2477 report("Search failed: %s", buf);
2481 string_copy(view->grep, opt_search);
2483 find_next(view, request);
2487 * Incremental updating
2491 reset_view(struct view *view)
2495 for (i = 0; i < view->lines; i++)
2496 free(view->line[i].data);
2503 view->line_alloc = 0;
2505 view->update_secs = 0;
2509 free_argv(const char *argv[])
2513 for (argc = 0; argv[argc]; argc++)
2514 free((void *) argv[argc]);
2518 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2520 char buf[SIZEOF_STR];
2522 bool noreplace = flags == FORMAT_NONE;
2524 free_argv(dst_argv);
2526 for (argc = 0; src_argv[argc]; argc++) {
2527 const char *arg = src_argv[argc];
2531 char *next = strstr(arg, "%(");
2532 int len = next - arg;
2535 if (!next || noreplace) {
2536 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2541 } else if (!prefixcmp(next, "%(directory)")) {
2544 } else if (!prefixcmp(next, "%(file)")) {
2547 } else if (!prefixcmp(next, "%(ref)")) {
2548 value = *opt_ref ? opt_ref : "HEAD";
2550 } else if (!prefixcmp(next, "%(head)")) {
2553 } else if (!prefixcmp(next, "%(commit)")) {
2556 } else if (!prefixcmp(next, "%(blob)")) {
2560 report("Unknown replacement: `%s`", next);
2564 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2567 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2570 dst_argv[argc] = strdup(buf);
2571 if (!dst_argv[argc])
2575 dst_argv[argc] = NULL;
2577 return src_argv[argc] == NULL;
2581 end_update(struct view *view, bool force)
2585 while (!view->ops->read(view, NULL))
2588 set_nonblocking_input(FALSE);
2590 kill_io(view->pipe);
2591 done_io(view->pipe);
2596 setup_update(struct view *view, const char *vid)
2598 set_nonblocking_input(TRUE);
2600 string_copy_rev(view->vid, vid);
2601 view->pipe = &view->io;
2602 view->start_time = time(NULL);
2606 prepare_update(struct view *view, const char *argv[], const char *dir,
2607 enum format_flags flags)
2610 end_update(view, TRUE);
2611 return init_io_rd(&view->io, argv, dir, flags);
2615 prepare_update_file(struct view *view, const char *name)
2618 end_update(view, TRUE);
2619 return io_open(&view->io, name);
2623 begin_update(struct view *view, bool refresh)
2626 if (!start_io(&view->io))
2630 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2633 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2636 /* Put the current ref_* value to the view title ref
2637 * member. This is needed by the blob view. Most other
2638 * views sets it automatically after loading because the
2639 * first line is a commit line. */
2640 string_copy_rev(view->ref, view->id);
2643 setup_update(view, view->id);
2648 #define ITEM_CHUNK_SIZE 256
2650 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2652 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2653 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2655 if (mem == NULL || num_chunks != num_chunks_new) {
2656 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2657 mem = realloc(mem, *size * item_size);
2663 static struct line *
2664 realloc_lines(struct view *view, size_t line_size)
2666 size_t alloc = view->line_alloc;
2667 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2668 sizeof(*view->line));
2674 view->line_alloc = alloc;
2679 update_view(struct view *view)
2681 char out_buffer[BUFSIZ * 2];
2683 /* Clear the view and redraw everything since the tree sorting
2684 * might have rearranged things. */
2685 bool redraw = view->lines == 0;
2686 bool can_read = TRUE;
2691 if (!io_can_read(view->pipe)) {
2692 if (view->lines == 0) {
2693 time_t secs = time(NULL) - view->start_time;
2695 if (secs > view->update_secs) {
2696 if (view->update_secs == 0)
2698 update_view_title(view);
2699 view->update_secs = secs;
2705 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2706 size_t linelen = strlen(line);
2708 if (opt_iconv != ICONV_NONE) {
2709 ICONV_CONST char *inbuf = line;
2710 size_t inlen = linelen;
2712 char *outbuf = out_buffer;
2713 size_t outlen = sizeof(out_buffer);
2717 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2718 if (ret != (size_t) -1) {
2720 linelen = strlen(out_buffer);
2724 if (!view->ops->read(view, line))
2729 unsigned long lines = view->lines;
2732 for (digits = 0; lines; digits++)
2735 /* Keep the displayed view in sync with line number scaling. */
2736 if (digits != view->digits) {
2737 view->digits = digits;
2738 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2743 if (io_error(view->pipe)) {
2744 report("Failed to read: %s", io_strerror(view->pipe));
2745 end_update(view, TRUE);
2747 } else if (io_eof(view->pipe)) {
2749 end_update(view, FALSE);
2752 if (!view_is_displayed(view))
2758 redraw_view_dirty(view);
2760 /* Update the title _after_ the redraw so that if the redraw picks up a
2761 * commit reference in view->ref it'll be available here. */
2762 update_view_title(view);
2766 report("Allocation failure");
2767 end_update(view, TRUE);
2771 static struct line *
2772 add_line_data(struct view *view, void *data, enum line_type type)
2776 if (!realloc_lines(view, view->lines + 1))
2779 line = &view->line[view->lines++];
2780 memset(line, 0, sizeof(*line));
2788 static struct line *
2789 add_line_text(struct view *view, const char *text, enum line_type type)
2791 char *data = text ? strdup(text) : NULL;
2793 return data ? add_line_data(view, data, type) : NULL;
2796 static struct line *
2797 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2799 char buf[SIZEOF_STR];
2802 va_start(args, fmt);
2803 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2807 return buf[0] ? add_line_text(view, buf, type) : NULL;
2815 OPEN_DEFAULT = 0, /* Use default view switching. */
2816 OPEN_SPLIT = 1, /* Split current view. */
2817 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2818 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2819 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2820 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2821 OPEN_PREPARED = 32, /* Open already prepared command. */
2825 open_view(struct view *prev, enum request request, enum open_flags flags)
2827 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2828 bool split = !!(flags & OPEN_SPLIT);
2829 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2830 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2831 struct view *view = VIEW(request);
2832 int nviews = displayed_views();
2833 struct view *base_view = display[0];
2835 if (view == prev && nviews == 1 && !reload) {
2836 report("Already in %s view", view->name);
2840 if (view->git_dir && !opt_git_dir[0]) {
2841 report("The %s view is disabled in pager view", view->name);
2849 } else if (!nomaximize) {
2850 /* Maximize the current view. */
2851 memset(display, 0, sizeof(display));
2853 display[current_view] = view;
2856 /* Resize the view when switching between split- and full-screen,
2857 * or when switching between two different full-screen views. */
2858 if (nviews != displayed_views() ||
2859 (nviews == 1 && base_view != display[0]))
2863 end_update(view, TRUE);
2865 if (view->ops->open) {
2866 if (!view->ops->open(view)) {
2867 report("Failed to load %s view", view->name);
2871 } else if ((reload || strcmp(view->vid, view->id)) &&
2872 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2873 report("Failed to load %s view", view->name);
2877 if (split && prev->lineno - prev->offset >= prev->height) {
2878 /* Take the title line into account. */
2879 int lines = prev->lineno - prev->offset - prev->height + 1;
2881 /* Scroll the view that was split if the current line is
2882 * outside the new limited view. */
2883 do_scroll_view(prev, lines);
2886 if (prev && view != prev) {
2887 if (split && !backgrounded) {
2888 /* "Blur" the previous view. */
2889 update_view_title(prev);
2892 view->parent = prev;
2895 if (view->pipe && view->lines == 0) {
2896 /* Clear the old view and let the incremental updating refill
2900 } else if (view_is_displayed(view)) {
2905 /* If the view is backgrounded the above calls to report()
2906 * won't redraw the view title. */
2908 update_view_title(view);
2912 open_external_viewer(const char *argv[], const char *dir)
2914 def_prog_mode(); /* save current tty modes */
2915 endwin(); /* restore original tty modes */
2916 run_io_fg(argv, dir);
2917 fprintf(stderr, "Press Enter to continue");
2924 open_mergetool(const char *file)
2926 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
2928 open_external_viewer(mergetool_argv, opt_cdup);
2932 open_editor(bool from_root, const char *file)
2934 const char *editor_argv[] = { "vi", file, NULL };
2937 editor = getenv("GIT_EDITOR");
2938 if (!editor && *opt_editor)
2939 editor = opt_editor;
2941 editor = getenv("VISUAL");
2943 editor = getenv("EDITOR");
2947 editor_argv[0] = editor;
2948 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
2952 open_run_request(enum request request)
2954 struct run_request *req = get_run_request(request);
2955 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
2958 report("Unknown run request");
2962 if (format_argv(argv, req->argv, FORMAT_ALL))
2963 open_external_viewer(argv, NULL);
2968 * User request switch noodle
2972 view_driver(struct view *view, enum request request)
2976 if (request == REQ_NONE) {
2981 if (request > REQ_NONE) {
2982 open_run_request(request);
2983 /* FIXME: When all views can refresh always do this. */
2984 if (view == VIEW(REQ_VIEW_STATUS) ||
2985 view == VIEW(REQ_VIEW_MAIN) ||
2986 view == VIEW(REQ_VIEW_LOG) ||
2987 view == VIEW(REQ_VIEW_STAGE))
2988 request = REQ_REFRESH;
2993 if (view && view->lines) {
2994 request = view->ops->request(view, request, &view->line[view->lineno]);
2995 if (request == REQ_NONE)
3002 case REQ_MOVE_PAGE_UP:
3003 case REQ_MOVE_PAGE_DOWN:
3004 case REQ_MOVE_FIRST_LINE:
3005 case REQ_MOVE_LAST_LINE:
3006 move_view(view, request);
3009 case REQ_SCROLL_LINE_DOWN:
3010 case REQ_SCROLL_LINE_UP:
3011 case REQ_SCROLL_PAGE_DOWN:
3012 case REQ_SCROLL_PAGE_UP:
3013 scroll_view(view, request);
3016 case REQ_VIEW_BLAME:
3018 report("No file chosen, press %s to open tree view",
3019 get_key(REQ_VIEW_TREE));
3022 open_view(view, request, OPEN_DEFAULT);
3027 report("No file chosen, press %s to open tree view",
3028 get_key(REQ_VIEW_TREE));
3031 open_view(view, request, OPEN_DEFAULT);
3034 case REQ_VIEW_PAGER:
3035 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3036 report("No pager content, press %s to run command from prompt",
3037 get_key(REQ_PROMPT));
3040 open_view(view, request, OPEN_DEFAULT);
3043 case REQ_VIEW_STAGE:
3044 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3045 report("No stage content, press %s to open the status view and choose file",
3046 get_key(REQ_VIEW_STATUS));
3049 open_view(view, request, OPEN_DEFAULT);
3052 case REQ_VIEW_STATUS:
3053 if (opt_is_inside_work_tree == FALSE) {
3054 report("The status view requires a working tree");
3057 open_view(view, request, OPEN_DEFAULT);
3065 open_view(view, request, OPEN_DEFAULT);
3070 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3072 if ((view == VIEW(REQ_VIEW_DIFF) &&
3073 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3074 (view == VIEW(REQ_VIEW_DIFF) &&
3075 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3076 (view == VIEW(REQ_VIEW_STAGE) &&
3077 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3078 (view == VIEW(REQ_VIEW_BLOB) &&
3079 view->parent == VIEW(REQ_VIEW_TREE))) {
3082 view = view->parent;
3083 line = view->lineno;
3084 move_view(view, request);
3085 if (view_is_displayed(view))
3086 update_view_title(view);
3087 if (line != view->lineno)
3088 view->ops->request(view, REQ_ENTER,
3089 &view->line[view->lineno]);
3092 move_view(view, request);
3098 int nviews = displayed_views();
3099 int next_view = (current_view + 1) % nviews;
3101 if (next_view == current_view) {
3102 report("Only one view is displayed");
3106 current_view = next_view;
3107 /* Blur out the title of the previous view. */
3108 update_view_title(view);
3113 report("Refreshing is not yet supported for the %s view", view->name);
3117 if (displayed_views() == 2)
3118 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3121 case REQ_TOGGLE_LINENO:
3122 opt_line_number = !opt_line_number;
3126 case REQ_TOGGLE_DATE:
3127 opt_date = !opt_date;
3131 case REQ_TOGGLE_AUTHOR:
3132 opt_author = !opt_author;
3136 case REQ_TOGGLE_REV_GRAPH:
3137 opt_rev_graph = !opt_rev_graph;
3141 case REQ_TOGGLE_REFS:
3142 opt_show_refs = !opt_show_refs;
3147 case REQ_SEARCH_BACK:
3148 search_view(view, request);
3153 find_next(view, request);
3156 case REQ_STOP_LOADING:
3157 for (i = 0; i < ARRAY_SIZE(views); i++) {
3160 report("Stopped loading the %s view", view->name),
3161 end_update(view, TRUE);
3165 case REQ_SHOW_VERSION:
3166 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3169 case REQ_SCREEN_RESIZE:
3172 case REQ_SCREEN_REDRAW:
3177 report("Nothing to edit");
3181 report("Nothing to enter");
3184 case REQ_VIEW_CLOSE:
3185 /* XXX: Mark closed views by letting view->parent point to the
3186 * view itself. Parents to closed view should never be
3189 view->parent->parent != view->parent) {
3190 memset(display, 0, sizeof(display));
3192 display[current_view] = view->parent;
3193 view->parent = view;
3204 report("Unknown key, press 'h' for help");
3217 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3219 char *text = line->data;
3221 if (opt_line_number && draw_lineno(view, lineno))
3224 draw_text(view, line->type, text, TRUE);
3229 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3231 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3232 char refbuf[SIZEOF_STR];
3235 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3236 ref = chomp_string(refbuf);
3241 /* This is the only fatal call, since it can "corrupt" the buffer. */
3242 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3249 add_pager_refs(struct view *view, struct line *line)
3251 char buf[SIZEOF_STR];
3252 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3254 size_t bufpos = 0, refpos = 0;
3255 const char *sep = "Refs: ";
3256 bool is_tag = FALSE;
3258 assert(line->type == LINE_COMMIT);
3260 refs = get_refs(commit_id);
3262 if (view == VIEW(REQ_VIEW_DIFF))
3263 goto try_add_describe_ref;
3268 struct ref *ref = refs[refpos];
3269 const char *fmt = ref->tag ? "%s[%s]" :
3270 ref->remote ? "%s<%s>" : "%s%s";
3272 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3277 } while (refs[refpos++]->next);
3279 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3280 try_add_describe_ref:
3281 /* Add <tag>-g<commit_id> "fake" reference. */
3282 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3289 add_line_text(view, buf, LINE_PP_REFS);
3293 pager_read(struct view *view, char *data)
3300 line = add_line_text(view, data, get_line_type(data));
3304 if (line->type == LINE_COMMIT &&
3305 (view == VIEW(REQ_VIEW_DIFF) ||
3306 view == VIEW(REQ_VIEW_LOG)))
3307 add_pager_refs(view, line);
3313 pager_request(struct view *view, enum request request, struct line *line)
3317 if (request != REQ_ENTER)
3320 if (line->type == LINE_COMMIT &&
3321 (view == VIEW(REQ_VIEW_LOG) ||
3322 view == VIEW(REQ_VIEW_PAGER))) {
3323 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3327 /* Always scroll the view even if it was split. That way
3328 * you can use Enter to scroll through the log view and
3329 * split open each commit diff. */
3330 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3332 /* FIXME: A minor workaround. Scrolling the view will call report("")
3333 * but if we are scrolling a non-current view this won't properly
3334 * update the view title. */
3336 update_view_title(view);
3342 pager_grep(struct view *view, struct line *line)
3345 char *text = line->data;
3350 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3357 pager_select(struct view *view, struct line *line)
3359 if (line->type == LINE_COMMIT) {
3360 char *text = (char *)line->data + STRING_SIZE("commit ");
3362 if (view != VIEW(REQ_VIEW_PAGER))
3363 string_copy_rev(view->ref, text);
3364 string_copy_rev(ref_commit, text);
3368 static struct view_ops pager_ops = {
3379 static const char *log_argv[SIZEOF_ARG] = {
3380 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3384 log_request(struct view *view, enum request request, struct line *line)
3389 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3392 return pager_request(view, request, line);
3396 static struct view_ops log_ops = {
3407 static const char *diff_argv[SIZEOF_ARG] = {
3408 "git", "show", "--pretty=fuller", "--no-color", "--root",
3409 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3412 static struct view_ops diff_ops = {
3428 help_open(struct view *view)
3430 int lines = ARRAY_SIZE(req_info) + 2;
3433 if (view->lines > 0)
3436 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3437 if (!req_info[i].request)
3440 lines += run_requests + 1;
3442 view->line = calloc(lines, sizeof(*view->line));
3446 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3448 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3451 if (req_info[i].request == REQ_NONE)
3454 if (!req_info[i].request) {
3455 add_line_text(view, "", LINE_DEFAULT);
3456 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3460 key = get_key(req_info[i].request);
3462 key = "(no key defined)";
3464 add_line_format(view, LINE_DEFAULT, " %-25s %s",
3465 key, req_info[i].help);
3469 add_line_text(view, "", LINE_DEFAULT);
3470 add_line_text(view, "External commands:", LINE_DEFAULT);
3473 for (i = 0; i < run_requests; i++) {
3474 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3476 char cmd[SIZEOF_STR];
3483 key = get_key_name(req->key);
3485 key = "(no key defined)";
3487 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3488 if (!string_format_from(cmd, &bufpos, "%s%s",
3489 argc ? " " : "", req->argv[argc]))
3492 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3493 keymap_table[req->keymap].name, key, cmd);
3499 static struct view_ops help_ops = {
3515 struct tree_stack_entry {
3516 struct tree_stack_entry *prev; /* Entry below this in the stack */
3517 unsigned long lineno; /* Line number to restore */
3518 char *name; /* Position of name in opt_path */
3521 /* The top of the path stack. */
3522 static struct tree_stack_entry *tree_stack = NULL;
3523 unsigned long tree_lineno = 0;
3526 pop_tree_stack_entry(void)
3528 struct tree_stack_entry *entry = tree_stack;
3530 tree_lineno = entry->lineno;
3532 tree_stack = entry->prev;
3537 push_tree_stack_entry(const char *name, unsigned long lineno)
3539 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3540 size_t pathlen = strlen(opt_path);
3545 entry->prev = tree_stack;
3546 entry->name = opt_path + pathlen;
3549 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3550 pop_tree_stack_entry();
3554 /* Move the current line to the first tree entry. */
3556 entry->lineno = lineno;
3559 /* Parse output from git-ls-tree(1):
3561 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3562 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3563 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3564 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3567 #define SIZEOF_TREE_ATTR \
3568 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3570 #define TREE_UP_FORMAT "040000 tree %s\t.."
3573 tree_path(struct line *line)
3575 const char *path = line->data;
3577 return path + SIZEOF_TREE_ATTR;
3581 tree_compare_entry(struct line *line1, struct line *line2)
3583 if (line1->type != line2->type)
3584 return line1->type == LINE_TREE_DIR ? -1 : 1;
3585 return strcmp(tree_path(line1), tree_path(line2));
3589 tree_read(struct view *view, char *text)
3591 size_t textlen = text ? strlen(text) : 0;
3592 struct line *entry, *line;
3593 enum line_type type;
3597 if (textlen <= SIZEOF_TREE_ATTR)
3600 type = text[STRING_SIZE("100644 ")] == 't'
3601 ? LINE_TREE_DIR : LINE_TREE_FILE;
3603 if (view->lines == 0 &&
3604 !add_line_format(view, LINE_DEFAULT, "Directory path /%s", opt_path))
3607 /* Strip the path part ... */
3609 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3610 size_t striplen = strlen(opt_path);
3611 char *path = text + SIZEOF_TREE_ATTR;
3613 if (pathlen > striplen)
3614 memmove(path, path + striplen,
3615 pathlen - striplen + 1);
3617 /* Insert "link" to parent directory. */
3618 if (view->lines == 1 &&
3619 !add_line_format(view, LINE_TREE_DIR, TREE_UP_FORMAT, view->ref))
3623 entry = add_line_text(view, text, type);
3628 /* Skip "Directory ..." and ".." line. */
3629 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3630 if (tree_compare_entry(line, entry) <= 0)
3633 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3637 for (; line <= entry; line++)
3638 line->dirty = line->cleareol = 1;
3642 if (tree_lineno > view->lineno) {
3643 view->lineno = tree_lineno;
3651 tree_request(struct view *view, enum request request, struct line *line)
3653 enum open_flags flags;
3656 case REQ_VIEW_BLAME:
3657 if (line->type != LINE_TREE_FILE) {
3658 report("Blame only supported for files");
3662 string_copy(opt_ref, view->vid);
3666 if (line->type != LINE_TREE_FILE) {
3667 report("Edit only supported for files");
3668 } else if (!is_head_commit(view->vid)) {
3669 report("Edit only supported for files in the current work tree");
3671 open_editor(TRUE, opt_file);
3675 case REQ_TREE_PARENT:
3677 /* quit view if at top of tree */
3678 return REQ_VIEW_CLOSE;
3681 line = &view->line[1];
3691 /* Cleanup the stack if the tree view is at a different tree. */
3692 while (!*opt_path && tree_stack)
3693 pop_tree_stack_entry();
3695 switch (line->type) {
3697 /* Depending on whether it is a subdir or parent (updir?) link
3698 * mangle the path buffer. */
3699 if (line == &view->line[1] && *opt_path) {
3700 pop_tree_stack_entry();
3703 const char *basename = tree_path(line);
3705 push_tree_stack_entry(basename, view->lineno);
3708 /* Trees and subtrees share the same ID, so they are not not
3709 * unique like blobs. */
3710 flags = OPEN_RELOAD;
3711 request = REQ_VIEW_TREE;
3714 case LINE_TREE_FILE:
3715 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3716 request = REQ_VIEW_BLOB;
3723 open_view(view, request, flags);
3724 if (request == REQ_VIEW_TREE) {
3725 view->lineno = tree_lineno;
3732 tree_select(struct view *view, struct line *line)
3734 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3736 if (line->type == LINE_TREE_FILE) {
3737 string_copy_rev(ref_blob, text);
3738 string_format(opt_file, "%s%s", opt_path, tree_path(line));
3740 } else if (line->type != LINE_TREE_DIR) {
3744 string_copy_rev(view->ref, text);
3747 static const char *tree_argv[SIZEOF_ARG] = {
3748 "git", "ls-tree", "%(commit)", "%(directory)", NULL
3751 static struct view_ops tree_ops = {
3763 blob_read(struct view *view, char *line)
3767 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3770 static const char *blob_argv[SIZEOF_ARG] = {
3771 "git", "cat-file", "blob", "%(blob)", NULL
3774 static struct view_ops blob_ops = {
3788 * Loading the blame view is a two phase job:
3790 * 1. File content is read either using opt_file from the
3791 * filesystem or using git-cat-file.
3792 * 2. Then blame information is incrementally added by
3793 * reading output from git-blame.
3796 static const char *blame_head_argv[] = {
3797 "git", "blame", "--incremental", "--", "%(file)", NULL
3800 static const char *blame_ref_argv[] = {
3801 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
3804 static const char *blame_cat_file_argv[] = {
3805 "git", "cat-file", "blob", "%(ref):%(file)", NULL
3808 struct blame_commit {
3809 char id[SIZEOF_REV]; /* SHA1 ID. */
3810 char title[128]; /* First line of the commit message. */
3811 char author[75]; /* Author of the commit. */
3812 struct tm time; /* Date from the author ident. */
3813 char filename[128]; /* Name of file. */
3817 struct blame_commit *commit;
3822 blame_open(struct view *view)
3824 if (*opt_ref || !io_open(&view->io, opt_file)) {
3825 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
3829 setup_update(view, opt_file);
3830 string_format(view->ref, "%s ...", opt_file);
3835 static struct blame_commit *
3836 get_blame_commit(struct view *view, const char *id)
3840 for (i = 0; i < view->lines; i++) {
3841 struct blame *blame = view->line[i].data;
3846 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3847 return blame->commit;
3851 struct blame_commit *commit = calloc(1, sizeof(*commit));
3854 string_ncopy(commit->id, id, SIZEOF_REV);
3860 parse_number(const char **posref, size_t *number, size_t min, size_t max)
3862 const char *pos = *posref;
3865 pos = strchr(pos + 1, ' ');
3866 if (!pos || !isdigit(pos[1]))
3868 *number = atoi(pos + 1);
3869 if (*number < min || *number > max)
3876 static struct blame_commit *
3877 parse_blame_commit(struct view *view, const char *text, int *blamed)
3879 struct blame_commit *commit;
3880 struct blame *blame;
3881 const char *pos = text + SIZEOF_REV - 1;
3885 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3888 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3889 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3892 commit = get_blame_commit(view, text);
3898 struct line *line = &view->line[lineno + group - 1];
3901 blame->commit = commit;
3909 blame_read_file(struct view *view, const char *line, bool *read_file)
3912 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
3915 if (view->lines == 0 && !view->parent)
3916 die("No blame exist for %s", view->vid);
3918 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
3919 report("Failed to load blame data");
3923 done_io(view->pipe);
3929 size_t linelen = strlen(line);
3930 struct blame *blame = malloc(sizeof(*blame) + linelen);
3932 blame->commit = NULL;
3933 strncpy(blame->text, line, linelen);
3934 blame->text[linelen] = 0;
3935 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3940 match_blame_header(const char *name, char **line)
3942 size_t namelen = strlen(name);
3943 bool matched = !strncmp(name, *line, namelen);
3952 blame_read(struct view *view, char *line)
3954 static struct blame_commit *commit = NULL;
3955 static int blamed = 0;
3956 static time_t author_time;
3957 static bool read_file = TRUE;
3960 return blame_read_file(view, line, &read_file);
3967 string_format(view->ref, "%s", view->vid);
3968 if (view_is_displayed(view)) {
3969 update_view_title(view);
3970 redraw_view_from(view, 0);
3976 commit = parse_blame_commit(view, line, &blamed);
3977 string_format(view->ref, "%s %2d%%", view->vid,
3978 blamed * 100 / view->lines);
3980 } else if (match_blame_header("author ", &line)) {
3981 string_ncopy(commit->author, line, strlen(line));
3983 } else if (match_blame_header("author-time ", &line)) {
3984 author_time = (time_t) atol(line);
3986 } else if (match_blame_header("author-tz ", &line)) {
3989 tz = ('0' - line[1]) * 60 * 60 * 10;
3990 tz += ('0' - line[2]) * 60 * 60;
3991 tz += ('0' - line[3]) * 60;
3992 tz += ('0' - line[4]) * 60;
3998 gmtime_r(&author_time, &commit->time);
4000 } else if (match_blame_header("summary ", &line)) {
4001 string_ncopy(commit->title, line, strlen(line));
4003 } else if (match_blame_header("filename ", &line)) {
4004 string_ncopy(commit->filename, line, strlen(line));
4012 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4014 struct blame *blame = line->data;
4015 struct tm *time = NULL;
4016 const char *id = NULL, *author = NULL;
4018 if (blame->commit && *blame->commit->filename) {
4019 id = blame->commit->id;
4020 author = blame->commit->author;
4021 time = &blame->commit->time;
4024 if (opt_date && draw_date(view, time))
4028 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
4031 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4034 if (draw_lineno(view, lineno))
4037 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4042 blame_request(struct view *view, enum request request, struct line *line)
4044 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4045 struct blame *blame = line->data;
4048 case REQ_VIEW_BLAME:
4049 if (!blame->commit || !strcmp(blame->commit->id, NULL_ID)) {
4050 report("Commit ID unknown");
4053 string_copy(opt_ref, blame->commit->id);
4054 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4058 if (!blame->commit) {
4059 report("No commit loaded yet");
4063 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4064 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4067 if (!strcmp(blame->commit->id, NULL_ID)) {
4068 struct view *diff = VIEW(REQ_VIEW_DIFF);
4069 const char *diff_index_argv[] = {
4070 "git", "diff-index", "--root", "--cached",
4071 "--patch-with-stat", "-C", "-M",
4072 "HEAD", "--", view->vid, NULL
4075 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4076 report("Failed to allocate diff command");
4079 flags |= OPEN_PREPARED;
4082 open_view(view, REQ_VIEW_DIFF, flags);
4093 blame_grep(struct view *view, struct line *line)
4095 struct blame *blame = line->data;
4096 struct blame_commit *commit = blame->commit;
4099 #define MATCH(text, on) \
4100 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4103 char buf[DATE_COLS + 1];
4105 if (MATCH(commit->title, 1) ||
4106 MATCH(commit->author, opt_author) ||
4107 MATCH(commit->id, opt_date))
4110 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4115 return MATCH(blame->text, 1);
4121 blame_select(struct view *view, struct line *line)
4123 struct blame *blame = line->data;
4124 struct blame_commit *commit = blame->commit;
4129 if (!strcmp(commit->id, NULL_ID))
4130 string_ncopy(ref_commit, "HEAD", 4);
4132 string_copy_rev(ref_commit, commit->id);
4135 static struct view_ops blame_ops = {
4154 char rev[SIZEOF_REV];
4155 char name[SIZEOF_STR];
4159 char rev[SIZEOF_REV];
4160 char name[SIZEOF_STR];
4164 static char status_onbranch[SIZEOF_STR];
4165 static struct status stage_status;
4166 static enum line_type stage_line_type;
4167 static size_t stage_chunks;
4168 static int *stage_chunk;
4170 /* This should work even for the "On branch" line. */
4172 status_has_none(struct view *view, struct line *line)
4174 return line < view->line + view->lines && !line[1].data;
4177 /* Get fields from the diff line:
4178 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4181 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4183 const char *old_mode = buf + 1;
4184 const char *new_mode = buf + 8;
4185 const char *old_rev = buf + 15;
4186 const char *new_rev = buf + 56;
4187 const char *status = buf + 97;
4190 old_mode[-1] != ':' ||
4191 new_mode[-1] != ' ' ||
4192 old_rev[-1] != ' ' ||
4193 new_rev[-1] != ' ' ||
4197 file->status = *status;
4199 string_copy_rev(file->old.rev, old_rev);
4200 string_copy_rev(file->new.rev, new_rev);
4202 file->old.mode = strtoul(old_mode, NULL, 8);
4203 file->new.mode = strtoul(new_mode, NULL, 8);
4205 file->old.name[0] = file->new.name[0] = 0;
4211 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4213 struct status *file = NULL;
4214 struct status *unmerged = NULL;
4218 if (!run_io(&io, argv, NULL, IO_RD))
4221 add_line_data(view, NULL, type);
4223 while ((buf = io_get(&io, 0, TRUE))) {
4225 file = calloc(1, sizeof(*file));
4226 if (!file || !add_line_data(view, file, type))
4230 /* Parse diff info part. */
4232 file->status = status;
4234 string_copy(file->old.rev, NULL_ID);
4236 } else if (!file->status) {
4237 if (!status_get_diff(file, buf, strlen(buf)))
4240 buf = io_get(&io, 0, TRUE);
4244 /* Collapse all 'M'odified entries that follow a
4245 * associated 'U'nmerged entry. */
4246 if (file->status == 'U') {
4249 } else if (unmerged) {
4250 int collapse = !strcmp(buf, unmerged->new.name);
4261 /* Grab the old name for rename/copy. */
4262 if (!*file->old.name &&
4263 (file->status == 'R' || file->status == 'C')) {
4264 string_ncopy(file->old.name, buf, strlen(buf));
4266 buf = io_get(&io, 0, TRUE);
4271 /* git-ls-files just delivers a NUL separated list of
4272 * file names similar to the second half of the
4273 * git-diff-* output. */
4274 string_ncopy(file->new.name, buf, strlen(buf));
4275 if (!*file->old.name)
4276 string_copy(file->old.name, file->new.name);
4280 if (io_error(&io)) {
4286 if (!view->line[view->lines - 1].data)
4287 add_line_data(view, NULL, LINE_STAT_NONE);
4293 /* Don't show unmerged entries in the staged section. */
4294 static const char *status_diff_index_argv[] = {
4295 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4296 "--cached", "-M", "HEAD", NULL
4299 static const char *status_diff_files_argv[] = {
4300 "git", "diff-files", "-z", NULL
4303 static const char *status_list_other_argv[] = {
4304 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4307 static const char *status_list_no_head_argv[] = {
4308 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4311 static const char *update_index_argv[] = {
4312 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4315 /* First parse staged info using git-diff-index(1), then parse unstaged
4316 * info using git-diff-files(1), and finally untracked files using
4317 * git-ls-files(1). */
4319 status_open(struct view *view)
4321 unsigned long prev_lineno = view->lineno;
4325 add_line_data(view, NULL, LINE_STAT_HEAD);
4326 if (is_initial_commit())
4327 string_copy(status_onbranch, "Initial commit");
4328 else if (!*opt_head)
4329 string_copy(status_onbranch, "Not currently on any branch");
4330 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4333 run_io_bg(update_index_argv);
4335 if (is_initial_commit()) {
4336 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4338 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4342 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4343 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4346 /* If all went well restore the previous line number to stay in
4347 * the context or select a line with something that can be
4349 if (prev_lineno >= view->lines)
4350 prev_lineno = view->lines - 1;
4351 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4353 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4356 /* If the above fails, always skip the "On branch" line. */
4357 if (prev_lineno < view->lines)
4358 view->lineno = prev_lineno;
4362 if (view->lineno < view->offset)
4363 view->offset = view->lineno;
4364 else if (view->offset + view->height <= view->lineno)
4365 view->offset = view->lineno - view->height + 1;
4371 status_draw(struct view *view, struct line *line, unsigned int lineno)
4373 struct status *status = line->data;
4374 enum line_type type;
4378 switch (line->type) {
4379 case LINE_STAT_STAGED:
4380 type = LINE_STAT_SECTION;
4381 text = "Changes to be committed:";
4384 case LINE_STAT_UNSTAGED:
4385 type = LINE_STAT_SECTION;
4386 text = "Changed but not updated:";
4389 case LINE_STAT_UNTRACKED:
4390 type = LINE_STAT_SECTION;
4391 text = "Untracked files:";
4394 case LINE_STAT_NONE:
4395 type = LINE_DEFAULT;
4396 text = " (no files)";
4399 case LINE_STAT_HEAD:
4400 type = LINE_STAT_HEAD;
4401 text = status_onbranch;
4408 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4410 buf[0] = status->status;
4411 if (draw_text(view, line->type, buf, TRUE))
4413 type = LINE_DEFAULT;
4414 text = status->new.name;
4417 draw_text(view, type, text, TRUE);
4422 status_enter(struct view *view, struct line *line)
4424 struct status *status = line->data;
4425 const char *oldpath = status ? status->old.name : NULL;
4426 /* Diffs for unmerged entries are empty when passing the new
4427 * path, so leave it empty. */
4428 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4430 enum open_flags split;
4431 struct view *stage = VIEW(REQ_VIEW_STAGE);
4433 if (line->type == LINE_STAT_NONE ||
4434 (!status && line[1].type == LINE_STAT_NONE)) {
4435 report("No file to diff");
4439 switch (line->type) {
4440 case LINE_STAT_STAGED:
4441 if (is_initial_commit()) {
4442 const char *no_head_diff_argv[] = {
4443 "git", "diff", "--no-color", "--patch-with-stat",
4444 "--", "/dev/null", newpath, NULL
4447 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4450 const char *index_show_argv[] = {
4451 "git", "diff-index", "--root", "--patch-with-stat",
4452 "-C", "-M", "--cached", "HEAD", "--",
4453 oldpath, newpath, NULL
4456 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4461 info = "Staged changes to %s";
4463 info = "Staged changes";
4466 case LINE_STAT_UNSTAGED:
4468 const char *files_show_argv[] = {
4469 "git", "diff-files", "--root", "--patch-with-stat",
4470 "-C", "-M", "--", oldpath, newpath, NULL
4473 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4476 info = "Unstaged changes to %s";
4478 info = "Unstaged changes";
4481 case LINE_STAT_UNTRACKED:
4483 report("No file to show");
4487 if (!suffixcmp(status->new.name, -1, "/")) {
4488 report("Cannot display a directory");
4492 if (!prepare_update_file(stage, newpath))
4494 info = "Untracked file %s";
4497 case LINE_STAT_HEAD:
4501 die("line type %d not handled in switch", line->type);
4504 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4505 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH | split);
4506 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4508 stage_status = *status;
4510 memset(&stage_status, 0, sizeof(stage_status));
4513 stage_line_type = line->type;
4515 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4522 status_exists(struct status *status, enum line_type type)
4524 struct view *view = VIEW(REQ_VIEW_STATUS);
4527 for (line = view->line; line < view->line + view->lines; line++) {
4528 struct status *pos = line->data;
4530 if (line->type == type && pos &&
4531 !strcmp(status->new.name, pos->new.name))
4540 status_update_prepare(struct io *io, enum line_type type)
4542 const char *staged_argv[] = {
4543 "git", "update-index", "-z", "--index-info", NULL
4545 const char *others_argv[] = {
4546 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4550 case LINE_STAT_STAGED:
4551 return run_io(io, staged_argv, opt_cdup, IO_WR);
4553 case LINE_STAT_UNSTAGED:
4554 return run_io(io, others_argv, opt_cdup, IO_WR);
4556 case LINE_STAT_UNTRACKED:
4557 return run_io(io, others_argv, NULL, IO_WR);
4560 die("line type %d not handled in switch", type);
4566 status_update_write(struct io *io, struct status *status, enum line_type type)
4568 char buf[SIZEOF_STR];
4572 case LINE_STAT_STAGED:
4573 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4576 status->old.name, 0))
4580 case LINE_STAT_UNSTAGED:
4581 case LINE_STAT_UNTRACKED:
4582 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4587 die("line type %d not handled in switch", type);
4590 return io_write(io, buf, bufsize);
4594 status_update_file(struct status *status, enum line_type type)
4599 if (!status_update_prepare(&io, type))
4602 result = status_update_write(&io, status, type);
4608 status_update_files(struct view *view, struct line *line)
4612 struct line *pos = view->line + view->lines;
4616 if (!status_update_prepare(&io, line->type))
4619 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4622 for (file = 0, done = 0; result && file < files; line++, file++) {
4623 int almost_done = file * 100 / files;
4625 if (almost_done > done) {
4627 string_format(view->ref, "updating file %u of %u (%d%% done)",
4629 update_view_title(view);
4631 result = status_update_write(&io, line->data, line->type);
4639 status_update(struct view *view)
4641 struct line *line = &view->line[view->lineno];
4643 assert(view->lines);
4646 /* This should work even for the "On branch" line. */
4647 if (line < view->line + view->lines && !line[1].data) {
4648 report("Nothing to update");
4652 if (!status_update_files(view, line + 1)) {
4653 report("Failed to update file status");
4657 } else if (!status_update_file(line->data, line->type)) {
4658 report("Failed to update file status");
4666 status_revert(struct status *status, enum line_type type, bool has_none)
4668 if (!status || type != LINE_STAT_UNSTAGED) {
4669 if (type == LINE_STAT_STAGED) {
4670 report("Cannot revert changes to staged files");
4671 } else if (type == LINE_STAT_UNTRACKED) {
4672 report("Cannot revert changes to untracked files");
4673 } else if (has_none) {
4674 report("Nothing to revert");
4676 report("Cannot revert changes to multiple files");
4681 const char *checkout_argv[] = {
4682 "git", "checkout", "--", status->old.name, NULL
4685 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
4687 return run_io_fg(checkout_argv, opt_cdup);
4692 status_request(struct view *view, enum request request, struct line *line)
4694 struct status *status = line->data;
4697 case REQ_STATUS_UPDATE:
4698 if (!status_update(view))
4702 case REQ_STATUS_REVERT:
4703 if (!status_revert(status, line->type, status_has_none(view, line)))
4707 case REQ_STATUS_MERGE:
4708 if (!status || status->status != 'U') {
4709 report("Merging only possible for files with unmerged status ('U').");
4712 open_mergetool(status->new.name);
4718 if (status->status == 'D') {
4719 report("File has been deleted.");
4723 open_editor(status->status != '?', status->new.name);
4726 case REQ_VIEW_BLAME:
4728 string_copy(opt_file, status->new.name);
4734 /* After returning the status view has been split to
4735 * show the stage view. No further reloading is
4737 status_enter(view, line);
4741 /* Simply reload the view. */
4748 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4754 status_select(struct view *view, struct line *line)
4756 struct status *status = line->data;
4757 char file[SIZEOF_STR] = "all files";
4761 if (status && !string_format(file, "'%s'", status->new.name))
4764 if (!status && line[1].type == LINE_STAT_NONE)
4767 switch (line->type) {
4768 case LINE_STAT_STAGED:
4769 text = "Press %s to unstage %s for commit";
4772 case LINE_STAT_UNSTAGED:
4773 text = "Press %s to stage %s for commit";
4776 case LINE_STAT_UNTRACKED:
4777 text = "Press %s to stage %s for addition";
4780 case LINE_STAT_HEAD:
4781 case LINE_STAT_NONE:
4782 text = "Nothing to update";
4786 die("line type %d not handled in switch", line->type);
4789 if (status && status->status == 'U') {
4790 text = "Press %s to resolve conflict in %s";
4791 key = get_key(REQ_STATUS_MERGE);
4794 key = get_key(REQ_STATUS_UPDATE);
4797 string_format(view->ref, text, key, file);
4801 status_grep(struct view *view, struct line *line)
4803 struct status *status = line->data;
4804 enum { S_STATUS, S_NAME, S_END } state;
4811 for (state = S_STATUS; state < S_END; state++) {
4815 case S_NAME: text = status->new.name; break;
4817 buf[0] = status->status;
4825 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4832 static struct view_ops status_ops = {
4845 stage_diff_write(struct io *io, struct line *line, struct line *end)
4847 while (line < end) {
4848 if (!io_write(io, line->data, strlen(line->data)) ||
4849 !io_write(io, "\n", 1))
4852 if (line->type == LINE_DIFF_CHUNK ||
4853 line->type == LINE_DIFF_HEADER)
4860 static struct line *
4861 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4863 for (; view->line < line; line--)
4864 if (line->type == type)
4871 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
4873 const char *apply_argv[SIZEOF_ARG] = {
4874 "git", "apply", "--whitespace=nowarn", NULL
4876 struct line *diff_hdr;
4880 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4885 apply_argv[argc++] = "--cached";
4886 if (revert || stage_line_type == LINE_STAT_STAGED)
4887 apply_argv[argc++] = "-R";
4888 apply_argv[argc++] = "-";
4889 apply_argv[argc++] = NULL;
4890 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
4893 if (!stage_diff_write(&io, diff_hdr, chunk) ||
4894 !stage_diff_write(&io, chunk, view->line + view->lines))
4898 run_io_bg(update_index_argv);
4900 return chunk ? TRUE : FALSE;
4904 stage_update(struct view *view, struct line *line)
4906 struct line *chunk = NULL;
4908 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
4909 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4912 if (!stage_apply_chunk(view, chunk, FALSE)) {
4913 report("Failed to apply chunk");
4917 } else if (!stage_status.status) {
4918 view = VIEW(REQ_VIEW_STATUS);
4920 for (line = view->line; line < view->line + view->lines; line++)
4921 if (line->type == stage_line_type)
4924 if (!status_update_files(view, line + 1)) {
4925 report("Failed to update files");
4929 } else if (!status_update_file(&stage_status, stage_line_type)) {
4930 report("Failed to update file");
4938 stage_revert(struct view *view, struct line *line)
4940 struct line *chunk = NULL;
4942 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
4943 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4946 if (!prompt_yesno("Are you sure you want to revert changes?"))
4949 if (!stage_apply_chunk(view, chunk, TRUE)) {
4950 report("Failed to revert chunk");
4956 return status_revert(stage_status.status ? &stage_status : NULL,
4957 stage_line_type, FALSE);
4963 stage_next(struct view *view, struct line *line)
4967 if (!stage_chunks) {
4968 static size_t alloc = 0;
4971 for (line = view->line; line < view->line + view->lines; line++) {
4972 if (line->type != LINE_DIFF_CHUNK)
4975 tmp = realloc_items(stage_chunk, &alloc,
4976 stage_chunks, sizeof(*tmp));
4978 report("Allocation failure");
4983 stage_chunk[stage_chunks++] = line - view->line;
4987 for (i = 0; i < stage_chunks; i++) {
4988 if (stage_chunk[i] > view->lineno) {
4989 do_scroll_view(view, stage_chunk[i] - view->lineno);
4990 report("Chunk %d of %d", i + 1, stage_chunks);
4995 report("No next chunk found");
4999 stage_request(struct view *view, enum request request, struct line *line)
5002 case REQ_STATUS_UPDATE:
5003 if (!stage_update(view, line))
5007 case REQ_STATUS_REVERT:
5008 if (!stage_revert(view, line))
5012 case REQ_STAGE_NEXT:
5013 if (stage_line_type == LINE_STAT_UNTRACKED) {
5014 report("File is untracked; press %s to add",
5015 get_key(REQ_STATUS_UPDATE));
5018 stage_next(view, line);
5022 if (!stage_status.new.name[0])
5024 if (stage_status.status == 'D') {
5025 report("File has been deleted.");
5029 open_editor(stage_status.status != '?', stage_status.new.name);
5033 /* Reload everything ... */
5036 case REQ_VIEW_BLAME:
5037 if (stage_status.new.name[0]) {
5038 string_copy(opt_file, stage_status.new.name);
5044 return pager_request(view, request, line);
5050 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5052 /* Check whether the staged entry still exists, and close the
5053 * stage view if it doesn't. */
5054 if (!status_exists(&stage_status, stage_line_type))
5055 return REQ_VIEW_CLOSE;
5057 if (stage_line_type == LINE_STAT_UNTRACKED) {
5058 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5059 report("Cannot display a directory");
5063 if (!prepare_update_file(view, stage_status.new.name)) {
5064 report("Failed to open file: %s", strerror(errno));
5068 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5073 static struct view_ops stage_ops = {
5090 char id[SIZEOF_REV]; /* SHA1 ID. */
5091 char title[128]; /* First line of the commit message. */
5092 char author[75]; /* Author of the commit. */
5093 struct tm time; /* Date from the author ident. */
5094 struct ref **refs; /* Repository references. */
5095 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5096 size_t graph_size; /* The width of the graph array. */
5097 bool has_parents; /* Rewritten --parents seen. */
5100 /* Size of rev graph with no "padding" columns */
5101 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5104 struct rev_graph *prev, *next, *parents;
5105 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5107 struct commit *commit;
5109 unsigned int boundary:1;
5112 /* Parents of the commit being visualized. */
5113 static struct rev_graph graph_parents[4];
5115 /* The current stack of revisions on the graph. */
5116 static struct rev_graph graph_stacks[4] = {
5117 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5118 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5119 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5120 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5124 graph_parent_is_merge(struct rev_graph *graph)
5126 return graph->parents->size > 1;
5130 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5132 struct commit *commit = graph->commit;
5134 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5135 commit->graph[commit->graph_size++] = symbol;
5139 clear_rev_graph(struct rev_graph *graph)
5141 graph->boundary = 0;
5142 graph->size = graph->pos = 0;
5143 graph->commit = NULL;
5144 memset(graph->parents, 0, sizeof(*graph->parents));
5148 done_rev_graph(struct rev_graph *graph)
5150 if (graph_parent_is_merge(graph) &&
5151 graph->pos < graph->size - 1 &&
5152 graph->next->size == graph->size + graph->parents->size - 1) {
5153 size_t i = graph->pos + graph->parents->size - 1;
5155 graph->commit->graph_size = i * 2;
5156 while (i < graph->next->size - 1) {
5157 append_to_rev_graph(graph, ' ');
5158 append_to_rev_graph(graph, '\\');
5163 clear_rev_graph(graph);
5167 push_rev_graph(struct rev_graph *graph, const char *parent)
5171 /* "Collapse" duplicate parents lines.
5173 * FIXME: This needs to also update update the drawn graph but
5174 * for now it just serves as a method for pruning graph lines. */
5175 for (i = 0; i < graph->size; i++)
5176 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5179 if (graph->size < SIZEOF_REVITEMS) {
5180 string_copy_rev(graph->rev[graph->size++], parent);
5185 get_rev_graph_symbol(struct rev_graph *graph)
5189 if (graph->boundary)
5190 symbol = REVGRAPH_BOUND;
5191 else if (graph->parents->size == 0)
5192 symbol = REVGRAPH_INIT;
5193 else if (graph_parent_is_merge(graph))
5194 symbol = REVGRAPH_MERGE;
5195 else if (graph->pos >= graph->size)
5196 symbol = REVGRAPH_BRANCH;
5198 symbol = REVGRAPH_COMMIT;
5204 draw_rev_graph(struct rev_graph *graph)
5207 chtype separator, line;
5209 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5210 static struct rev_filler fillers[] = {
5216 chtype symbol = get_rev_graph_symbol(graph);
5217 struct rev_filler *filler;
5220 if (opt_line_graphics)
5221 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5223 filler = &fillers[DEFAULT];
5225 for (i = 0; i < graph->pos; i++) {
5226 append_to_rev_graph(graph, filler->line);
5227 if (graph_parent_is_merge(graph->prev) &&
5228 graph->prev->pos == i)
5229 filler = &fillers[RSHARP];
5231 append_to_rev_graph(graph, filler->separator);
5234 /* Place the symbol for this revision. */
5235 append_to_rev_graph(graph, symbol);
5237 if (graph->prev->size > graph->size)
5238 filler = &fillers[RDIAG];
5240 filler = &fillers[DEFAULT];
5244 for (; i < graph->size; i++) {
5245 append_to_rev_graph(graph, filler->separator);
5246 append_to_rev_graph(graph, filler->line);
5247 if (graph_parent_is_merge(graph->prev) &&
5248 i < graph->prev->pos + graph->parents->size)
5249 filler = &fillers[RSHARP];
5250 if (graph->prev->size > graph->size)
5251 filler = &fillers[LDIAG];
5254 if (graph->prev->size > graph->size) {
5255 append_to_rev_graph(graph, filler->separator);
5256 if (filler->line != ' ')
5257 append_to_rev_graph(graph, filler->line);
5261 /* Prepare the next rev graph */
5263 prepare_rev_graph(struct rev_graph *graph)
5267 /* First, traverse all lines of revisions up to the active one. */
5268 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5269 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5272 push_rev_graph(graph->next, graph->rev[graph->pos]);
5275 /* Interleave the new revision parent(s). */
5276 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5277 push_rev_graph(graph->next, graph->parents->rev[i]);
5279 /* Lastly, put any remaining revisions. */
5280 for (i = graph->pos + 1; i < graph->size; i++)
5281 push_rev_graph(graph->next, graph->rev[i]);
5285 update_rev_graph(struct view *view, struct rev_graph *graph)
5287 /* If this is the finalizing update ... */
5289 prepare_rev_graph(graph);
5291 /* Graph visualization needs a one rev look-ahead,
5292 * so the first update doesn't visualize anything. */
5293 if (!graph->prev->commit)
5296 if (view->lines > 2)
5297 view->line[view->lines - 3].dirty = 1;
5298 if (view->lines > 1)
5299 view->line[view->lines - 2].dirty = 1;
5300 draw_rev_graph(graph->prev);
5301 done_rev_graph(graph->prev->prev);
5309 static const char *main_argv[SIZEOF_ARG] = {
5310 "git", "log", "--no-color", "--pretty=raw", "--parents",
5311 "--topo-order", "%(head)", NULL
5315 main_draw(struct view *view, struct line *line, unsigned int lineno)
5317 struct commit *commit = line->data;
5319 if (!*commit->author)
5322 if (opt_date && draw_date(view, &commit->time))
5326 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5329 if (opt_rev_graph && commit->graph_size &&
5330 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5333 if (opt_show_refs && commit->refs) {
5337 enum line_type type;
5339 if (commit->refs[i]->head)
5340 type = LINE_MAIN_HEAD;
5341 else if (commit->refs[i]->ltag)
5342 type = LINE_MAIN_LOCAL_TAG;
5343 else if (commit->refs[i]->tag)
5344 type = LINE_MAIN_TAG;
5345 else if (commit->refs[i]->tracked)
5346 type = LINE_MAIN_TRACKED;
5347 else if (commit->refs[i]->remote)
5348 type = LINE_MAIN_REMOTE;
5350 type = LINE_MAIN_REF;
5352 if (draw_text(view, type, "[", TRUE) ||
5353 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5354 draw_text(view, type, "]", TRUE))
5357 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5359 } while (commit->refs[i++]->next);
5362 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5366 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5368 main_read(struct view *view, char *line)
5370 static struct rev_graph *graph = graph_stacks;
5371 enum line_type type;
5372 struct commit *commit;
5377 if (!view->lines && !view->parent)
5378 die("No revisions match the given arguments.");
5379 if (view->lines > 0) {
5380 commit = view->line[view->lines - 1].data;
5381 if (!*commit->author) {
5384 graph->commit = NULL;
5387 update_rev_graph(view, graph);
5389 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5390 clear_rev_graph(&graph_stacks[i]);
5394 type = get_line_type(line);
5395 if (type == LINE_COMMIT) {
5396 commit = calloc(1, sizeof(struct commit));
5400 line += STRING_SIZE("commit ");
5402 graph->boundary = 1;
5406 string_copy_rev(commit->id, line);
5407 commit->refs = get_refs(commit->id);
5408 graph->commit = commit;
5409 add_line_data(view, commit, LINE_MAIN_COMMIT);
5411 while ((line = strchr(line, ' '))) {
5413 push_rev_graph(graph->parents, line);
5414 commit->has_parents = TRUE;
5421 commit = view->line[view->lines - 1].data;
5425 if (commit->has_parents)
5427 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5432 /* Parse author lines where the name may be empty:
5433 * author <email@address.tld> 1138474660 +0100
5435 char *ident = line + STRING_SIZE("author ");
5436 char *nameend = strchr(ident, '<');
5437 char *emailend = strchr(ident, '>');
5439 if (!nameend || !emailend)
5442 update_rev_graph(view, graph);
5443 graph = graph->next;
5445 *nameend = *emailend = 0;
5446 ident = chomp_string(ident);
5448 ident = chomp_string(nameend + 1);
5453 string_ncopy(commit->author, ident, strlen(ident));
5454 view->line[view->lines - 1].dirty = 1;
5456 /* Parse epoch and timezone */
5457 if (emailend[1] == ' ') {
5458 char *secs = emailend + 2;
5459 char *zone = strchr(secs, ' ');
5460 time_t time = (time_t) atol(secs);
5462 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5466 tz = ('0' - zone[1]) * 60 * 60 * 10;
5467 tz += ('0' - zone[2]) * 60 * 60;
5468 tz += ('0' - zone[3]) * 60;
5469 tz += ('0' - zone[4]) * 60;
5477 gmtime_r(&time, &commit->time);
5482 /* Fill in the commit title if it has not already been set. */
5483 if (commit->title[0])
5486 /* Require titles to start with a non-space character at the
5487 * offset used by git log. */
5488 if (strncmp(line, " ", 4))
5491 /* Well, if the title starts with a whitespace character,
5492 * try to be forgiving. Otherwise we end up with no title. */
5493 while (isspace(*line))
5497 /* FIXME: More graceful handling of titles; append "..." to
5498 * shortened titles, etc. */
5500 string_ncopy(commit->title, line, strlen(line));
5501 view->line[view->lines - 1].dirty = 1;
5508 main_request(struct view *view, enum request request, struct line *line)
5510 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5514 open_view(view, REQ_VIEW_DIFF, flags);
5518 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5528 grep_refs(struct ref **refs, regex_t *regex)
5536 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5538 } while (refs[i++]->next);
5544 main_grep(struct view *view, struct line *line)
5546 struct commit *commit = line->data;
5547 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5548 char buf[DATE_COLS + 1];
5551 for (state = S_TITLE; state < S_END; state++) {
5555 case S_TITLE: text = commit->title; break;
5559 text = commit->author;
5564 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5571 if (grep_refs(commit->refs, view->regex) == TRUE)
5578 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5586 main_select(struct view *view, struct line *line)
5588 struct commit *commit = line->data;
5590 string_copy_rev(view->ref, commit->id);
5591 string_copy_rev(ref_commit, view->ref);
5594 static struct view_ops main_ops = {
5607 * Unicode / UTF-8 handling
5609 * NOTE: Much of the following code for dealing with unicode is derived from
5610 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5611 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5614 /* I've (over)annotated a lot of code snippets because I am not entirely
5615 * confident that the approach taken by this small UTF-8 interface is correct.
5619 unicode_width(unsigned long c)
5622 (c <= 0x115f /* Hangul Jamo */
5625 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5627 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5628 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5629 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5630 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5631 || (c >= 0xffe0 && c <= 0xffe6)
5632 || (c >= 0x20000 && c <= 0x2fffd)
5633 || (c >= 0x30000 && c <= 0x3fffd)))
5637 return opt_tab_size;
5642 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5643 * Illegal bytes are set one. */
5644 static const unsigned char utf8_bytes[256] = {
5645 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,
5646 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,
5647 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,
5648 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,
5649 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,
5650 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,
5651 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,
5652 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,
5655 /* Decode UTF-8 multi-byte representation into a unicode character. */
5656 static inline unsigned long
5657 utf8_to_unicode(const char *string, size_t length)
5659 unsigned long unicode;
5663 unicode = string[0];
5666 unicode = (string[0] & 0x1f) << 6;
5667 unicode += (string[1] & 0x3f);
5670 unicode = (string[0] & 0x0f) << 12;
5671 unicode += ((string[1] & 0x3f) << 6);
5672 unicode += (string[2] & 0x3f);
5675 unicode = (string[0] & 0x0f) << 18;
5676 unicode += ((string[1] & 0x3f) << 12);
5677 unicode += ((string[2] & 0x3f) << 6);
5678 unicode += (string[3] & 0x3f);
5681 unicode = (string[0] & 0x0f) << 24;
5682 unicode += ((string[1] & 0x3f) << 18);
5683 unicode += ((string[2] & 0x3f) << 12);
5684 unicode += ((string[3] & 0x3f) << 6);
5685 unicode += (string[4] & 0x3f);
5688 unicode = (string[0] & 0x01) << 30;
5689 unicode += ((string[1] & 0x3f) << 24);
5690 unicode += ((string[2] & 0x3f) << 18);
5691 unicode += ((string[3] & 0x3f) << 12);
5692 unicode += ((string[4] & 0x3f) << 6);
5693 unicode += (string[5] & 0x3f);
5696 die("Invalid unicode length");
5699 /* Invalid characters could return the special 0xfffd value but NUL
5700 * should be just as good. */
5701 return unicode > 0xffff ? 0 : unicode;
5704 /* Calculates how much of string can be shown within the given maximum width
5705 * and sets trimmed parameter to non-zero value if all of string could not be
5706 * shown. If the reserve flag is TRUE, it will reserve at least one
5707 * trailing character, which can be useful when drawing a delimiter.
5709 * Returns the number of bytes to output from string to satisfy max_width. */
5711 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5713 const char *start = string;
5714 const char *end = strchr(string, '\0');
5715 unsigned char last_bytes = 0;
5716 size_t last_ucwidth = 0;
5721 while (string < end) {
5722 int c = *(unsigned char *) string;
5723 unsigned char bytes = utf8_bytes[c];
5725 unsigned long unicode;
5727 if (string + bytes > end)
5730 /* Change representation to figure out whether
5731 * it is a single- or double-width character. */
5733 unicode = utf8_to_unicode(string, bytes);
5734 /* FIXME: Graceful handling of invalid unicode character. */
5738 ucwidth = unicode_width(unicode);
5740 if (*width > max_width) {
5743 if (reserve && *width == max_width) {
5744 string -= last_bytes;
5745 *width -= last_ucwidth;
5752 last_ucwidth = ucwidth;
5755 return string - start;
5763 /* Whether or not the curses interface has been initialized. */
5764 static bool cursed = FALSE;
5766 /* The status window is used for polling keystrokes. */
5767 static WINDOW *status_win;
5769 static bool status_empty = TRUE;
5771 /* Update status and title window. */
5773 report(const char *msg, ...)
5775 struct view *view = display[current_view];
5781 char buf[SIZEOF_STR];
5784 va_start(args, msg);
5785 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5786 buf[sizeof(buf) - 1] = 0;
5787 buf[sizeof(buf) - 2] = '.';
5788 buf[sizeof(buf) - 3] = '.';
5789 buf[sizeof(buf) - 4] = '.';
5795 if (!status_empty || *msg) {
5798 va_start(args, msg);
5800 wmove(status_win, 0, 0);
5802 vwprintw(status_win, msg, args);
5803 status_empty = FALSE;
5805 status_empty = TRUE;
5807 wclrtoeol(status_win);
5808 wrefresh(status_win);
5813 update_view_title(view);
5814 update_display_cursor(view);
5817 /* Controls when nodelay should be in effect when polling user input. */
5819 set_nonblocking_input(bool loading)
5821 static unsigned int loading_views;
5823 if ((loading == FALSE && loading_views-- == 1) ||
5824 (loading == TRUE && loading_views++ == 0))
5825 nodelay(status_win, loading);
5833 /* Initialize the curses library */
5834 if (isatty(STDIN_FILENO)) {
5835 cursed = !!initscr();
5838 /* Leave stdin and stdout alone when acting as a pager. */
5839 opt_tty = fopen("/dev/tty", "r+");
5841 die("Failed to open /dev/tty");
5842 cursed = !!newterm(NULL, opt_tty, opt_tty);
5846 die("Failed to initialize curses");
5848 nonl(); /* Tell curses not to do NL->CR/NL on output */
5849 cbreak(); /* Take input chars one at a time, no wait for \n */
5850 noecho(); /* Don't echo input */
5851 leaveok(stdscr, TRUE);
5856 getmaxyx(stdscr, y, x);
5857 status_win = newwin(1, 0, y - 1, 0);
5859 die("Failed to create status window");
5861 /* Enable keyboard mapping */
5862 keypad(status_win, TRUE);
5863 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5865 TABSIZE = opt_tab_size;
5866 if (opt_line_graphics) {
5867 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5872 prompt_yesno(const char *prompt)
5874 enum { WAIT, STOP, CANCEL } status = WAIT;
5875 bool answer = FALSE;
5877 while (status == WAIT) {
5883 foreach_view (view, i)
5888 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
5889 wclrtoeol(status_win);
5891 /* Refresh, accept single keystroke of input */
5892 key = wgetch(status_win);
5916 /* Clear the status window */
5917 status_empty = FALSE;
5924 read_prompt(const char *prompt)
5926 enum { READING, STOP, CANCEL } status = READING;
5927 static char buf[SIZEOF_STR];
5930 while (status == READING) {
5936 foreach_view (view, i)
5941 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5942 wclrtoeol(status_win);
5944 /* Refresh, accept single keystroke of input */
5945 key = wgetch(status_win);
5950 status = pos ? STOP : CANCEL;
5968 if (pos >= sizeof(buf)) {
5969 report("Input string too long");
5974 buf[pos++] = (char) key;
5978 /* Clear the status window */
5979 status_empty = FALSE;
5982 if (status == CANCEL)
5991 * Repository properties
5995 git_properties(const char **argv, const char *separators,
5996 int (*read_property)(char *, size_t, char *, size_t))
6000 if (init_io_rd(&io, argv, NULL, FORMAT_NONE))
6001 return read_properties(&io, separators, read_property);
6005 static struct ref *refs = NULL;
6006 static size_t refs_alloc = 0;
6007 static size_t refs_size = 0;
6009 /* Id <-> ref store */
6010 static struct ref ***id_refs = NULL;
6011 static size_t id_refs_alloc = 0;
6012 static size_t id_refs_size = 0;
6015 compare_refs(const void *ref1_, const void *ref2_)
6017 const struct ref *ref1 = *(const struct ref **)ref1_;
6018 const struct ref *ref2 = *(const struct ref **)ref2_;
6020 if (ref1->tag != ref2->tag)
6021 return ref2->tag - ref1->tag;
6022 if (ref1->ltag != ref2->ltag)
6023 return ref2->ltag - ref2->ltag;
6024 if (ref1->head != ref2->head)
6025 return ref2->head - ref1->head;
6026 if (ref1->tracked != ref2->tracked)
6027 return ref2->tracked - ref1->tracked;
6028 if (ref1->remote != ref2->remote)
6029 return ref2->remote - ref1->remote;
6030 return strcmp(ref1->name, ref2->name);
6033 static struct ref **
6034 get_refs(const char *id)
6036 struct ref ***tmp_id_refs;
6037 struct ref **ref_list = NULL;
6038 size_t ref_list_alloc = 0;
6039 size_t ref_list_size = 0;
6042 for (i = 0; i < id_refs_size; i++)
6043 if (!strcmp(id, id_refs[i][0]->id))
6046 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6051 id_refs = tmp_id_refs;
6053 for (i = 0; i < refs_size; i++) {
6056 if (strcmp(id, refs[i].id))
6059 tmp = realloc_items(ref_list, &ref_list_alloc,
6060 ref_list_size + 1, sizeof(*ref_list));
6068 ref_list[ref_list_size] = &refs[i];
6069 /* XXX: The properties of the commit chains ensures that we can
6070 * safely modify the shared ref. The repo references will
6071 * always be similar for the same id. */
6072 ref_list[ref_list_size]->next = 1;
6078 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6079 ref_list[ref_list_size - 1]->next = 0;
6080 id_refs[id_refs_size++] = ref_list;
6087 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6092 bool remote = FALSE;
6093 bool tracked = FALSE;
6094 bool check_replace = FALSE;
6097 if (!prefixcmp(name, "refs/tags/")) {
6098 if (!suffixcmp(name, namelen, "^{}")) {
6101 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6102 check_replace = TRUE;
6108 namelen -= STRING_SIZE("refs/tags/");
6109 name += STRING_SIZE("refs/tags/");
6111 } else if (!prefixcmp(name, "refs/remotes/")) {
6113 namelen -= STRING_SIZE("refs/remotes/");
6114 name += STRING_SIZE("refs/remotes/");
6115 tracked = !strcmp(opt_remote, name);
6117 } else if (!prefixcmp(name, "refs/heads/")) {
6118 namelen -= STRING_SIZE("refs/heads/");
6119 name += STRING_SIZE("refs/heads/");
6120 head = !strncmp(opt_head, name, namelen);
6122 } else if (!strcmp(name, "HEAD")) {
6123 string_ncopy(opt_head_rev, id, idlen);
6127 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6128 /* it's an annotated tag, replace the previous sha1 with the
6129 * resolved commit id; relies on the fact git-ls-remote lists
6130 * the commit id of an annotated tag right before the commit id
6132 refs[refs_size - 1].ltag = ltag;
6133 string_copy_rev(refs[refs_size - 1].id, id);
6137 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6141 ref = &refs[refs_size++];
6142 ref->name = malloc(namelen + 1);
6146 strncpy(ref->name, name, namelen);
6147 ref->name[namelen] = 0;
6151 ref->remote = remote;
6152 ref->tracked = tracked;
6153 string_copy_rev(ref->id, id);
6161 static const char *ls_remote_argv[SIZEOF_ARG] = {
6162 "git", "ls-remote", ".", NULL
6164 static bool init = FALSE;
6167 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6174 while (refs_size > 0)
6175 free(refs[--refs_size].name);
6176 while (id_refs_size > 0)
6177 free(id_refs[--id_refs_size]);
6179 return git_properties(ls_remote_argv, "\t", read_ref);
6183 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6185 if (!strcmp(name, "i18n.commitencoding"))
6186 string_ncopy(opt_encoding, value, valuelen);
6188 if (!strcmp(name, "core.editor"))
6189 string_ncopy(opt_editor, value, valuelen);
6191 /* branch.<head>.remote */
6193 !strncmp(name, "branch.", 7) &&
6194 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6195 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6196 string_ncopy(opt_remote, value, valuelen);
6198 if (*opt_head && *opt_remote &&
6199 !strncmp(name, "branch.", 7) &&
6200 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6201 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6202 size_t from = strlen(opt_remote);
6204 if (!prefixcmp(value, "refs/heads/")) {
6205 value += STRING_SIZE("refs/heads/");
6206 valuelen -= STRING_SIZE("refs/heads/");
6209 if (!string_format_from(opt_remote, &from, "/%s", value))
6217 load_git_config(void)
6219 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6221 return git_properties(config_list_argv, "=", read_repo_config_option);
6225 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6227 if (!opt_git_dir[0]) {
6228 string_ncopy(opt_git_dir, name, namelen);
6230 } else if (opt_is_inside_work_tree == -1) {
6231 /* This can be 3 different values depending on the
6232 * version of git being used. If git-rev-parse does not
6233 * understand --is-inside-work-tree it will simply echo
6234 * the option else either "true" or "false" is printed.
6235 * Default to true for the unknown case. */
6236 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6238 string_ncopy(opt_cdup, name, namelen);
6245 load_repo_info(void)
6247 const char *head_argv[] = {
6248 "git", "symbolic-ref", "HEAD", NULL
6250 const char *rev_parse_argv[] = {
6251 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6255 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6256 chomp_string(opt_head);
6257 if (!prefixcmp(opt_head, "refs/heads/")) {
6258 char *offset = opt_head + STRING_SIZE("refs/heads/");
6260 memmove(opt_head, offset, strlen(offset) + 1);
6264 return git_properties(rev_parse_argv, "=", read_repo_info);
6268 read_properties(struct io *io, const char *separators,
6269 int (*read_property)(char *, size_t, char *, size_t))
6277 while (state == OK && (name = io_get(io, '\n', TRUE))) {
6282 name = chomp_string(name);
6283 namelen = strcspn(name, separators);
6285 if (name[namelen]) {
6287 value = chomp_string(name + namelen + 1);
6288 valuelen = strlen(value);
6295 state = read_property(name, namelen, value, valuelen);
6298 if (state != ERR && io_error(io))
6310 static void __NORETURN
6313 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6319 static void __NORETURN
6320 die(const char *err, ...)
6326 va_start(args, err);
6327 fputs("tig: ", stderr);
6328 vfprintf(stderr, err, args);
6329 fputs("\n", stderr);
6336 warn(const char *msg, ...)
6340 va_start(args, msg);
6341 fputs("tig warning: ", stderr);
6342 vfprintf(stderr, msg, args);
6343 fputs("\n", stderr);
6348 main(int argc, const char *argv[])
6350 const char **run_argv = NULL;
6352 enum request request;
6355 signal(SIGINT, quit);
6357 if (setlocale(LC_ALL, "")) {
6358 char *codeset = nl_langinfo(CODESET);
6360 string_ncopy(opt_codeset, codeset, strlen(codeset));
6363 if (load_repo_info() == ERR)
6364 die("Failed to load repo info.");
6366 if (load_options() == ERR)
6367 die("Failed to load user config.");
6369 if (load_git_config() == ERR)
6370 die("Failed to load repo config.");
6372 request = parse_options(argc, argv, &run_argv);
6373 if (request == REQ_NONE)
6376 /* Require a git repository unless when running in pager mode. */
6377 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6378 die("Not a git repository");
6380 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6383 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6384 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6385 if (opt_iconv == ICONV_NONE)
6386 die("Failed to initialize character set conversion");
6389 if (load_refs() == ERR)
6390 die("Failed to load refs.");
6392 foreach_view (view, i)
6393 argv_from_env(view->ops->argv, view->cmd_env);
6397 if (request == REQ_VIEW_PAGER || run_argv) {
6398 if (request == REQ_VIEW_PAGER)
6399 io_open(&VIEW(request)->io, "");
6400 else if (!prepare_update(VIEW(request), run_argv, NULL, FORMAT_NONE))
6401 die("Failed to format arguments");
6402 open_view(NULL, request, OPEN_PREPARED);
6406 while (view_driver(display[current_view], request)) {
6410 foreach_view (view, i)
6412 view = display[current_view];
6414 /* Refresh, accept single keystroke of input */
6415 key = wgetch(status_win);
6417 /* wgetch() with nodelay() enabled returns ERR when there's no
6424 request = get_keybinding(view->keymap, key);
6426 /* Some low-level request handling. This keeps access to
6427 * status_win restricted. */
6431 char *cmd = read_prompt(":");
6434 struct view *next = VIEW(REQ_VIEW_PAGER);
6435 const char *argv[SIZEOF_ARG] = { "git" };
6438 /* When running random commands, initially show the
6439 * command in the title. However, it maybe later be
6440 * overwritten if a commit line is selected. */
6441 string_ncopy(next->ref, cmd, strlen(cmd));
6443 if (!argv_from_string(argv, &argc, cmd)) {
6444 report("Too many arguments");
6445 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6446 report("Failed to format command");
6448 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6456 case REQ_SEARCH_BACK:
6458 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6459 char *search = read_prompt(prompt);
6462 string_ncopy(opt_search, search, strlen(search));
6467 case REQ_SCREEN_RESIZE:
6471 getmaxyx(stdscr, height, width);
6473 /* Resize the status view and let the view driver take
6474 * care of resizing the displayed views. */
6475 wresize(status_win, 1, width);
6476 mvwin(status_win, height - 1, 0);
6477 wrefresh(status_win);