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;
1025 void *data; /* User data */
1035 enum request request;
1038 static struct keybinding default_keybindings[] = {
1039 /* View switching */
1040 { 'm', REQ_VIEW_MAIN },
1041 { 'd', REQ_VIEW_DIFF },
1042 { 'l', REQ_VIEW_LOG },
1043 { 't', REQ_VIEW_TREE },
1044 { 'f', REQ_VIEW_BLOB },
1045 { 'B', REQ_VIEW_BLAME },
1046 { 'p', REQ_VIEW_PAGER },
1047 { 'h', REQ_VIEW_HELP },
1048 { 'S', REQ_VIEW_STATUS },
1049 { 'c', REQ_VIEW_STAGE },
1051 /* View manipulation */
1052 { 'q', REQ_VIEW_CLOSE },
1053 { KEY_TAB, REQ_VIEW_NEXT },
1054 { KEY_RETURN, REQ_ENTER },
1055 { KEY_UP, REQ_PREVIOUS },
1056 { KEY_DOWN, REQ_NEXT },
1057 { 'R', REQ_REFRESH },
1058 { KEY_F(5), REQ_REFRESH },
1059 { 'O', REQ_MAXIMIZE },
1061 /* Cursor navigation */
1062 { 'k', REQ_MOVE_UP },
1063 { 'j', REQ_MOVE_DOWN },
1064 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1065 { KEY_END, REQ_MOVE_LAST_LINE },
1066 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1067 { ' ', REQ_MOVE_PAGE_DOWN },
1068 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1069 { 'b', REQ_MOVE_PAGE_UP },
1070 { '-', REQ_MOVE_PAGE_UP },
1073 { KEY_IC, REQ_SCROLL_LINE_UP },
1074 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1075 { 'w', REQ_SCROLL_PAGE_UP },
1076 { 's', REQ_SCROLL_PAGE_DOWN },
1079 { '/', REQ_SEARCH },
1080 { '?', REQ_SEARCH_BACK },
1081 { 'n', REQ_FIND_NEXT },
1082 { 'N', REQ_FIND_PREV },
1086 { 'z', REQ_STOP_LOADING },
1087 { 'v', REQ_SHOW_VERSION },
1088 { 'r', REQ_SCREEN_REDRAW },
1089 { '.', REQ_TOGGLE_LINENO },
1090 { 'D', REQ_TOGGLE_DATE },
1091 { 'A', REQ_TOGGLE_AUTHOR },
1092 { 'g', REQ_TOGGLE_REV_GRAPH },
1093 { 'F', REQ_TOGGLE_REFS },
1094 { ':', REQ_PROMPT },
1095 { 'u', REQ_STATUS_UPDATE },
1096 { '!', REQ_STATUS_REVERT },
1097 { 'M', REQ_STATUS_MERGE },
1098 { '@', REQ_STAGE_NEXT },
1099 { ',', REQ_TREE_PARENT },
1102 /* Using the ncurses SIGWINCH handler. */
1103 { KEY_RESIZE, REQ_SCREEN_RESIZE },
1106 #define KEYMAP_INFO \
1120 #define KEYMAP_(name) KEYMAP_##name
1125 static struct int_map keymap_table[] = {
1126 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
1131 #define set_keymap(map, name) \
1132 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
1134 struct keybinding_table {
1135 struct keybinding *data;
1139 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1142 add_keybinding(enum keymap keymap, enum request request, int key)
1144 struct keybinding_table *table = &keybindings[keymap];
1146 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1148 die("Failed to allocate keybinding");
1149 table->data[table->size].alias = key;
1150 table->data[table->size++].request = request;
1153 /* Looks for a key binding first in the given map, then in the generic map, and
1154 * lastly in the default keybindings. */
1156 get_keybinding(enum keymap keymap, int key)
1160 for (i = 0; i < keybindings[keymap].size; i++)
1161 if (keybindings[keymap].data[i].alias == key)
1162 return keybindings[keymap].data[i].request;
1164 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1165 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1166 return keybindings[KEYMAP_GENERIC].data[i].request;
1168 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1169 if (default_keybindings[i].alias == key)
1170 return default_keybindings[i].request;
1172 return (enum request) key;
1181 static struct key key_table[] = {
1182 { "Enter", KEY_RETURN },
1184 { "Backspace", KEY_BACKSPACE },
1186 { "Escape", KEY_ESC },
1187 { "Left", KEY_LEFT },
1188 { "Right", KEY_RIGHT },
1190 { "Down", KEY_DOWN },
1191 { "Insert", KEY_IC },
1192 { "Delete", KEY_DC },
1194 { "Home", KEY_HOME },
1196 { "PageUp", KEY_PPAGE },
1197 { "PageDown", KEY_NPAGE },
1207 { "F10", KEY_F(10) },
1208 { "F11", KEY_F(11) },
1209 { "F12", KEY_F(12) },
1213 get_key_value(const char *name)
1217 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1218 if (!strcasecmp(key_table[i].name, name))
1219 return key_table[i].value;
1221 if (strlen(name) == 1 && isprint(*name))
1228 get_key_name(int key_value)
1230 static char key_char[] = "'X'";
1231 const char *seq = NULL;
1234 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1235 if (key_table[key].value == key_value)
1236 seq = key_table[key].name;
1240 isprint(key_value)) {
1241 key_char[1] = (char) key_value;
1245 return seq ? seq : "(no key)";
1249 get_key(enum request request)
1251 static char buf[BUFSIZ];
1258 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1259 struct keybinding *keybinding = &default_keybindings[i];
1261 if (keybinding->request != request)
1264 if (!string_format_from(buf, &pos, "%s%s", sep,
1265 get_key_name(keybinding->alias)))
1266 return "Too many keybindings!";
1273 struct run_request {
1276 const char *argv[SIZEOF_ARG];
1279 static struct run_request *run_request;
1280 static size_t run_requests;
1283 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1285 struct run_request *req;
1287 if (argc >= ARRAY_SIZE(req->argv) - 1)
1290 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1295 req = &run_request[run_requests];
1296 req->keymap = keymap;
1298 req->argv[0] = NULL;
1300 if (!format_argv(req->argv, argv, FORMAT_NONE))
1303 return REQ_NONE + ++run_requests;
1306 static struct run_request *
1307 get_run_request(enum request request)
1309 if (request <= REQ_NONE)
1311 return &run_request[request - REQ_NONE - 1];
1315 add_builtin_run_requests(void)
1317 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1318 const char *gc[] = { "git", "gc", NULL };
1325 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1326 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1330 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1333 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1334 if (req != REQ_NONE)
1335 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1340 * User config file handling.
1343 static struct int_map color_map[] = {
1344 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1356 #define set_color(color, name) \
1357 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1359 static struct int_map attr_map[] = {
1360 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1367 ATTR_MAP(UNDERLINE),
1370 #define set_attribute(attr, name) \
1371 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1373 static int config_lineno;
1374 static bool config_errors;
1375 static const char *config_msg;
1377 /* Wants: object fgcolor bgcolor [attr] */
1379 option_color_command(int argc, const char *argv[])
1381 struct line_info *info;
1383 if (argc != 3 && argc != 4) {
1384 config_msg = "Wrong number of arguments given to color command";
1388 info = get_line_info(argv[0]);
1390 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1391 info = get_line_info("delimiter");
1393 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1394 info = get_line_info("date");
1397 config_msg = "Unknown color name";
1402 if (set_color(&info->fg, argv[1]) == ERR ||
1403 set_color(&info->bg, argv[2]) == ERR) {
1404 config_msg = "Unknown color";
1408 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1409 config_msg = "Unknown attribute";
1416 static bool parse_bool(const char *s)
1418 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1419 !strcmp(s, "yes")) ? TRUE : FALSE;
1423 parse_int(const char *s, int default_value, int min, int max)
1425 int value = atoi(s);
1427 return (value < min || value > max) ? default_value : value;
1430 /* Wants: name = value */
1432 option_set_command(int argc, const char *argv[])
1435 config_msg = "Wrong number of arguments given to set command";
1439 if (strcmp(argv[1], "=")) {
1440 config_msg = "No value assigned";
1444 if (!strcmp(argv[0], "show-author")) {
1445 opt_author = parse_bool(argv[2]);
1449 if (!strcmp(argv[0], "show-date")) {
1450 opt_date = parse_bool(argv[2]);
1454 if (!strcmp(argv[0], "show-rev-graph")) {
1455 opt_rev_graph = parse_bool(argv[2]);
1459 if (!strcmp(argv[0], "show-refs")) {
1460 opt_show_refs = parse_bool(argv[2]);
1464 if (!strcmp(argv[0], "show-line-numbers")) {
1465 opt_line_number = parse_bool(argv[2]);
1469 if (!strcmp(argv[0], "line-graphics")) {
1470 opt_line_graphics = parse_bool(argv[2]);
1474 if (!strcmp(argv[0], "line-number-interval")) {
1475 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1479 if (!strcmp(argv[0], "author-width")) {
1480 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1484 if (!strcmp(argv[0], "tab-size")) {
1485 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1489 if (!strcmp(argv[0], "commit-encoding")) {
1490 const char *arg = argv[2];
1491 int arglen = strlen(arg);
1496 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1497 config_msg = "Unmatched quotation";
1500 arg += 1; arglen -= 2;
1502 string_ncopy(opt_encoding, arg, strlen(arg));
1507 config_msg = "Unknown variable name";
1511 /* Wants: mode request key */
1513 option_bind_command(int argc, const char *argv[])
1515 enum request request;
1520 config_msg = "Wrong number of arguments given to bind command";
1524 if (set_keymap(&keymap, argv[0]) == ERR) {
1525 config_msg = "Unknown key map";
1529 key = get_key_value(argv[1]);
1531 config_msg = "Unknown key";
1535 request = get_request(argv[2]);
1536 if (request == REQ_NONE) {
1537 const char *obsolete[] = { "cherry-pick" };
1538 size_t namelen = strlen(argv[2]);
1541 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1542 if (namelen == strlen(obsolete[i]) &&
1543 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1544 config_msg = "Obsolete request name";
1549 if (request == REQ_NONE && *argv[2]++ == '!')
1550 request = add_run_request(keymap, key, argc - 2, argv + 2);
1551 if (request == REQ_NONE) {
1552 config_msg = "Unknown request name";
1556 add_keybinding(keymap, request, key);
1562 set_option(const char *opt, char *value)
1564 const char *argv[SIZEOF_ARG];
1567 if (!argv_from_string(argv, &argc, value)) {
1568 config_msg = "Too many option arguments";
1572 if (!strcmp(opt, "color"))
1573 return option_color_command(argc, argv);
1575 if (!strcmp(opt, "set"))
1576 return option_set_command(argc, argv);
1578 if (!strcmp(opt, "bind"))
1579 return option_bind_command(argc, argv);
1581 config_msg = "Unknown option command";
1586 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1591 config_msg = "Internal error";
1593 /* Check for comment markers, since read_properties() will
1594 * only ensure opt and value are split at first " \t". */
1595 optlen = strcspn(opt, "#");
1599 if (opt[optlen] != 0) {
1600 config_msg = "No option value";
1604 /* Look for comment endings in the value. */
1605 size_t len = strcspn(value, "#");
1607 if (len < valuelen) {
1609 value[valuelen] = 0;
1612 status = set_option(opt, value);
1615 if (status == ERR) {
1616 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1617 config_lineno, (int) optlen, opt, config_msg);
1618 config_errors = TRUE;
1621 /* Always keep going if errors are encountered. */
1626 load_option_file(const char *path)
1630 /* It's ok that the file doesn't exist. */
1631 if (!io_open(&io, path))
1635 config_errors = FALSE;
1637 if (read_properties(&io, " \t", read_option) == ERR ||
1638 config_errors == TRUE)
1639 fprintf(stderr, "Errors while loading %s.\n", path);
1645 const char *home = getenv("HOME");
1646 const char *tigrc_user = getenv("TIGRC_USER");
1647 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1648 char buf[SIZEOF_STR];
1650 add_builtin_run_requests();
1652 if (!tigrc_system) {
1653 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1657 load_option_file(tigrc_system);
1660 if (!home || !string_format(buf, "%s/.tigrc", home))
1664 load_option_file(tigrc_user);
1677 /* The display array of active views and the index of the current view. */
1678 static struct view *display[2];
1679 static unsigned int current_view;
1681 /* Reading from the prompt? */
1682 static bool input_mode = FALSE;
1684 #define foreach_displayed_view(view, i) \
1685 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1687 #define displayed_views() (display[1] != NULL ? 2 : 1)
1689 /* Current head and commit ID */
1690 static char ref_blob[SIZEOF_REF] = "";
1691 static char ref_commit[SIZEOF_REF] = "HEAD";
1692 static char ref_head[SIZEOF_REF] = "HEAD";
1695 const char *name; /* View name */
1696 const char *cmd_env; /* Command line set via environment */
1697 const char *id; /* Points to either of ref_{head,commit,blob} */
1699 struct view_ops *ops; /* View operations */
1701 enum keymap keymap; /* What keymap does this view have */
1702 bool git_dir; /* Whether the view requires a git directory. */
1704 char ref[SIZEOF_REF]; /* Hovered commit reference */
1705 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1707 int height, width; /* The width and height of the main window */
1708 WINDOW *win; /* The main window */
1709 WINDOW *title; /* The title window living below the main window */
1712 unsigned long offset; /* Offset of the window top */
1713 unsigned long lineno; /* Current line number */
1716 char grep[SIZEOF_STR]; /* Search string */
1717 regex_t *regex; /* Pre-compiled regex */
1719 /* If non-NULL, points to the view that opened this view. If this view
1720 * is closed tig will switch back to the parent view. */
1721 struct view *parent;
1724 size_t lines; /* Total number of lines */
1725 struct line *line; /* Line index */
1726 size_t line_alloc; /* Total number of allocated lines */
1727 unsigned int digits; /* Number of digits in the lines member. */
1730 struct line *curline; /* Line currently being drawn. */
1731 enum line_type curtype; /* Attribute currently used for drawing. */
1732 unsigned long col; /* Column when drawing. */
1742 /* What type of content being displayed. Used in the title bar. */
1744 /* Default command arguments. */
1746 /* Open and reads in all view content. */
1747 bool (*open)(struct view *view);
1748 /* Read one line; updates view->line. */
1749 bool (*read)(struct view *view, char *data);
1750 /* Draw one line; @lineno must be < view->height. */
1751 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1752 /* Depending on view handle a special requests. */
1753 enum request (*request)(struct view *view, enum request request, struct line *line);
1754 /* Search for regex in a line. */
1755 bool (*grep)(struct view *view, struct line *line);
1757 void (*select)(struct view *view, struct line *line);
1760 static struct view_ops blame_ops;
1761 static struct view_ops blob_ops;
1762 static struct view_ops diff_ops;
1763 static struct view_ops help_ops;
1764 static struct view_ops log_ops;
1765 static struct view_ops main_ops;
1766 static struct view_ops pager_ops;
1767 static struct view_ops stage_ops;
1768 static struct view_ops status_ops;
1769 static struct view_ops tree_ops;
1771 #define VIEW_STR(name, env, ref, ops, map, git) \
1772 { name, #env, ref, ops, map, git }
1774 #define VIEW_(id, name, ops, git, ref) \
1775 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1778 static struct view views[] = {
1779 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1780 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1781 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1782 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1783 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1784 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1785 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1786 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1787 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1788 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1791 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1792 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1794 #define foreach_view(view, i) \
1795 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1797 #define view_is_displayed(view) \
1798 (view == display[0] || view == display[1])
1805 static int line_graphics[] = {
1806 /* LINE_GRAPHIC_VLINE: */ '|'
1810 set_view_attr(struct view *view, enum line_type type)
1812 if (!view->curline->selected && view->curtype != type) {
1813 wattrset(view->win, get_line_attr(type));
1814 wchgat(view->win, -1, 0, type, NULL);
1815 view->curtype = type;
1820 draw_chars(struct view *view, enum line_type type, const char *string,
1821 int max_len, bool use_tilde)
1825 int trimmed = FALSE;
1831 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1833 col = len = strlen(string);
1834 if (len > max_len) {
1838 col = len = max_len;
1843 set_view_attr(view, type);
1844 waddnstr(view->win, string, len);
1845 if (trimmed && use_tilde) {
1846 set_view_attr(view, LINE_DELIMITER);
1847 waddch(view->win, '~');
1855 draw_space(struct view *view, enum line_type type, int max, int spaces)
1857 static char space[] = " ";
1860 spaces = MIN(max, spaces);
1862 while (spaces > 0) {
1863 int len = MIN(spaces, sizeof(space) - 1);
1865 col += draw_chars(view, type, space, spaces, FALSE);
1873 draw_lineno(struct view *view, unsigned int lineno)
1876 int digits3 = view->digits < 3 ? 3 : view->digits;
1877 int max_number = MIN(digits3, STRING_SIZE(number));
1878 int max = view->width - view->col;
1881 if (max < max_number)
1884 lineno += view->offset + 1;
1885 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1886 static char fmt[] = "%1ld";
1888 if (view->digits <= 9)
1889 fmt[1] = '0' + digits3;
1891 if (!string_format(number, fmt, lineno))
1893 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1895 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1899 set_view_attr(view, LINE_DEFAULT);
1900 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1905 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1908 return view->width - view->col <= 0;
1912 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1914 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1915 return view->width - view->col <= 0;
1919 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1921 int max = view->width - view->col;
1927 set_view_attr(view, type);
1928 /* Using waddch() instead of waddnstr() ensures that
1929 * they'll be rendered correctly for the cursor line. */
1930 for (i = 0; i < size; i++)
1931 waddch(view->win, graphic[i]);
1935 waddch(view->win, ' ');
1939 return view->width - view->col <= 0;
1943 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1945 int max = MIN(view->width - view->col, len);
1949 col = draw_chars(view, type, text, max - 1, trim);
1951 col = draw_space(view, type, max - 1, max - 1);
1953 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1954 return view->width - view->col <= 0;
1958 draw_date(struct view *view, struct tm *time)
1960 char buf[DATE_COLS];
1965 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1966 date = timelen ? buf : NULL;
1968 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1972 draw_view_line(struct view *view, unsigned int lineno)
1975 bool selected = (view->offset + lineno == view->lineno);
1978 assert(view_is_displayed(view));
1980 if (view->offset + lineno >= view->lines)
1983 line = &view->line[view->offset + lineno];
1985 wmove(view->win, lineno, 0);
1987 view->curline = line;
1988 view->curtype = LINE_NONE;
1989 line->selected = FALSE;
1993 set_view_attr(view, LINE_CURSOR);
1994 line->selected = TRUE;
1995 view->ops->select(view, line);
1996 } else if (line->selected) {
1997 wclrtoeol(view->win);
2000 scrollok(view->win, FALSE);
2001 draw_ok = view->ops->draw(view, line, lineno);
2002 scrollok(view->win, TRUE);
2008 redraw_view_dirty(struct view *view)
2013 for (lineno = 0; lineno < view->height; lineno++) {
2014 struct line *line = &view->line[view->offset + lineno];
2019 if (!draw_view_line(view, lineno))
2025 redrawwin(view->win);
2027 wnoutrefresh(view->win);
2029 wrefresh(view->win);
2033 redraw_view_from(struct view *view, int lineno)
2035 assert(0 <= lineno && lineno < view->height);
2037 for (; lineno < view->height; lineno++) {
2038 if (!draw_view_line(view, lineno))
2042 redrawwin(view->win);
2044 wnoutrefresh(view->win);
2046 wrefresh(view->win);
2050 redraw_view(struct view *view)
2053 redraw_view_from(view, 0);
2058 update_view_title(struct view *view)
2060 char buf[SIZEOF_STR];
2061 char state[SIZEOF_STR];
2062 size_t bufpos = 0, statelen = 0;
2064 assert(view_is_displayed(view));
2066 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2067 unsigned int view_lines = view->offset + view->height;
2068 unsigned int lines = view->lines
2069 ? MIN(view_lines, view->lines) * 100 / view->lines
2072 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2081 time_t secs = time(NULL) - view->start_time;
2083 /* Three git seconds are a long time ... */
2085 string_format_from(state, &statelen, " loading %lds", secs);
2088 string_format_from(buf, &bufpos, "[%s]", view->name);
2089 if (*view->ref && bufpos < view->width) {
2090 size_t refsize = strlen(view->ref);
2091 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2093 if (minsize < view->width)
2094 refsize = view->width - minsize + 7;
2095 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2098 if (statelen && bufpos < view->width) {
2099 string_format_from(buf, &bufpos, "%s", state);
2102 if (view == display[current_view])
2103 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2105 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2107 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2108 wclrtoeol(view->title);
2109 wmove(view->title, 0, view->width - 1);
2112 wnoutrefresh(view->title);
2114 wrefresh(view->title);
2118 resize_display(void)
2121 struct view *base = display[0];
2122 struct view *view = display[1] ? display[1] : display[0];
2124 /* Setup window dimensions */
2126 getmaxyx(stdscr, base->height, base->width);
2128 /* Make room for the status window. */
2132 /* Horizontal split. */
2133 view->width = base->width;
2134 view->height = SCALE_SPLIT_VIEW(base->height);
2135 base->height -= view->height;
2137 /* Make room for the title bar. */
2141 /* Make room for the title bar. */
2146 foreach_displayed_view (view, i) {
2148 view->win = newwin(view->height, 0, offset, 0);
2150 die("Failed to create %s view", view->name);
2152 scrollok(view->win, TRUE);
2154 view->title = newwin(1, 0, offset + view->height, 0);
2156 die("Failed to create title window");
2159 wresize(view->win, view->height, view->width);
2160 mvwin(view->win, offset, 0);
2161 mvwin(view->title, offset + view->height, 0);
2164 offset += view->height + 1;
2169 redraw_display(void)
2174 foreach_displayed_view (view, i) {
2176 update_view_title(view);
2181 update_display_cursor(struct view *view)
2183 /* Move the cursor to the right-most column of the cursor line.
2185 * XXX: This could turn out to be a bit expensive, but it ensures that
2186 * the cursor does not jump around. */
2188 wmove(view->win, view->lineno - view->offset, view->width - 1);
2189 wrefresh(view->win);
2197 /* Scrolling backend */
2199 do_scroll_view(struct view *view, int lines)
2201 bool redraw_current_line = FALSE;
2203 /* The rendering expects the new offset. */
2204 view->offset += lines;
2206 assert(0 <= view->offset && view->offset < view->lines);
2209 /* Move current line into the view. */
2210 if (view->lineno < view->offset) {
2211 view->lineno = view->offset;
2212 redraw_current_line = TRUE;
2213 } else if (view->lineno >= view->offset + view->height) {
2214 view->lineno = view->offset + view->height - 1;
2215 redraw_current_line = TRUE;
2218 assert(view->offset <= view->lineno && view->lineno < view->lines);
2220 /* Redraw the whole screen if scrolling is pointless. */
2221 if (view->height < ABS(lines)) {
2225 int line = lines > 0 ? view->height - lines : 0;
2226 int end = line + ABS(lines);
2228 wscrl(view->win, lines);
2230 for (; line < end; line++) {
2231 if (!draw_view_line(view, line))
2235 if (redraw_current_line)
2236 draw_view_line(view, view->lineno - view->offset);
2239 redrawwin(view->win);
2240 wrefresh(view->win);
2244 /* Scroll frontend */
2246 scroll_view(struct view *view, enum request request)
2250 assert(view_is_displayed(view));
2253 case REQ_SCROLL_PAGE_DOWN:
2254 lines = view->height;
2255 case REQ_SCROLL_LINE_DOWN:
2256 if (view->offset + lines > view->lines)
2257 lines = view->lines - view->offset;
2259 if (lines == 0 || view->offset + view->height >= view->lines) {
2260 report("Cannot scroll beyond the last line");
2265 case REQ_SCROLL_PAGE_UP:
2266 lines = view->height;
2267 case REQ_SCROLL_LINE_UP:
2268 if (lines > view->offset)
2269 lines = view->offset;
2272 report("Cannot scroll beyond the first line");
2280 die("request %d not handled in switch", request);
2283 do_scroll_view(view, lines);
2288 move_view(struct view *view, enum request request)
2290 int scroll_steps = 0;
2294 case REQ_MOVE_FIRST_LINE:
2295 steps = -view->lineno;
2298 case REQ_MOVE_LAST_LINE:
2299 steps = view->lines - view->lineno - 1;
2302 case REQ_MOVE_PAGE_UP:
2303 steps = view->height > view->lineno
2304 ? -view->lineno : -view->height;
2307 case REQ_MOVE_PAGE_DOWN:
2308 steps = view->lineno + view->height >= view->lines
2309 ? view->lines - view->lineno - 1 : view->height;
2321 die("request %d not handled in switch", request);
2324 if (steps <= 0 && view->lineno == 0) {
2325 report("Cannot move beyond the first line");
2328 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2329 report("Cannot move beyond the last line");
2333 /* Move the current line */
2334 view->lineno += steps;
2335 assert(0 <= view->lineno && view->lineno < view->lines);
2337 /* Check whether the view needs to be scrolled */
2338 if (view->lineno < view->offset ||
2339 view->lineno >= view->offset + view->height) {
2340 scroll_steps = steps;
2341 if (steps < 0 && -steps > view->offset) {
2342 scroll_steps = -view->offset;
2344 } else if (steps > 0) {
2345 if (view->lineno == view->lines - 1 &&
2346 view->lines > view->height) {
2347 scroll_steps = view->lines - view->offset - 1;
2348 if (scroll_steps >= view->height)
2349 scroll_steps -= view->height - 1;
2354 if (!view_is_displayed(view)) {
2355 view->offset += scroll_steps;
2356 assert(0 <= view->offset && view->offset < view->lines);
2357 view->ops->select(view, &view->line[view->lineno]);
2361 /* Repaint the old "current" line if we be scrolling */
2362 if (ABS(steps) < view->height)
2363 draw_view_line(view, view->lineno - steps - view->offset);
2366 do_scroll_view(view, scroll_steps);
2370 /* Draw the current line */
2371 draw_view_line(view, view->lineno - view->offset);
2373 redrawwin(view->win);
2374 wrefresh(view->win);
2383 static void search_view(struct view *view, enum request request);
2386 find_next_line(struct view *view, unsigned long lineno, struct line *line)
2388 assert(view_is_displayed(view));
2390 if (!view->ops->grep(view, line))
2393 if (lineno - view->offset >= view->height) {
2394 view->offset = lineno;
2395 view->lineno = lineno;
2399 unsigned long old_lineno = view->lineno - view->offset;
2401 view->lineno = lineno;
2402 draw_view_line(view, old_lineno);
2404 draw_view_line(view, view->lineno - view->offset);
2405 redrawwin(view->win);
2406 wrefresh(view->win);
2409 report("Line %ld matches '%s'", lineno + 1, view->grep);
2414 find_next(struct view *view, enum request request)
2416 unsigned long lineno = view->lineno;
2421 report("No previous search");
2423 search_view(view, request);
2433 case REQ_SEARCH_BACK:
2442 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2443 lineno += direction;
2445 /* Note, lineno is unsigned long so will wrap around in which case it
2446 * will become bigger than view->lines. */
2447 for (; lineno < view->lines; lineno += direction) {
2448 struct line *line = &view->line[lineno];
2450 if (find_next_line(view, lineno, line))
2454 report("No match found for '%s'", view->grep);
2458 search_view(struct view *view, enum request request)
2463 regfree(view->regex);
2466 view->regex = calloc(1, sizeof(*view->regex));
2471 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2472 if (regex_err != 0) {
2473 char buf[SIZEOF_STR] = "unknown error";
2475 regerror(regex_err, view->regex, buf, sizeof(buf));
2476 report("Search failed: %s", buf);
2480 string_copy(view->grep, opt_search);
2482 find_next(view, request);
2486 * Incremental updating
2490 reset_view(struct view *view)
2494 for (i = 0; i < view->lines; i++)
2495 free(view->line[i].data);
2502 view->line_alloc = 0;
2504 view->update_secs = 0;
2508 free_argv(const char *argv[])
2512 for (argc = 0; argv[argc]; argc++)
2513 free((void *) argv[argc]);
2517 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2519 char buf[SIZEOF_STR];
2521 bool noreplace = flags == FORMAT_NONE;
2523 free_argv(dst_argv);
2525 for (argc = 0; src_argv[argc]; argc++) {
2526 const char *arg = src_argv[argc];
2530 char *next = strstr(arg, "%(");
2531 int len = next - arg;
2534 if (!next || noreplace) {
2535 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2540 } else if (!prefixcmp(next, "%(directory)")) {
2543 } else if (!prefixcmp(next, "%(file)")) {
2546 } else if (!prefixcmp(next, "%(ref)")) {
2547 value = *opt_ref ? opt_ref : "HEAD";
2549 } else if (!prefixcmp(next, "%(head)")) {
2552 } else if (!prefixcmp(next, "%(commit)")) {
2555 } else if (!prefixcmp(next, "%(blob)")) {
2559 report("Unknown replacement: `%s`", next);
2563 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2566 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2569 dst_argv[argc] = strdup(buf);
2570 if (!dst_argv[argc])
2574 dst_argv[argc] = NULL;
2576 return src_argv[argc] == NULL;
2580 end_update(struct view *view, bool force)
2584 while (!view->ops->read(view, NULL))
2587 set_nonblocking_input(FALSE);
2589 kill_io(view->pipe);
2590 done_io(view->pipe);
2595 setup_update(struct view *view, const char *vid)
2597 set_nonblocking_input(TRUE);
2599 string_copy_rev(view->vid, vid);
2600 view->pipe = &view->io;
2601 view->start_time = time(NULL);
2605 prepare_update(struct view *view, const char *argv[], const char *dir,
2606 enum format_flags flags)
2609 end_update(view, TRUE);
2610 return init_io_rd(&view->io, argv, dir, flags);
2614 prepare_update_file(struct view *view, const char *name)
2617 end_update(view, TRUE);
2618 return io_open(&view->io, name);
2622 begin_update(struct view *view, bool refresh)
2625 if (!start_io(&view->io))
2629 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2632 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2635 /* Put the current ref_* value to the view title ref
2636 * member. This is needed by the blob view. Most other
2637 * views sets it automatically after loading because the
2638 * first line is a commit line. */
2639 string_copy_rev(view->ref, view->id);
2642 setup_update(view, view->id);
2647 #define ITEM_CHUNK_SIZE 256
2649 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2651 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2652 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2654 if (mem == NULL || num_chunks != num_chunks_new) {
2655 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2656 mem = realloc(mem, *size * item_size);
2662 static struct line *
2663 realloc_lines(struct view *view, size_t line_size)
2665 size_t alloc = view->line_alloc;
2666 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2667 sizeof(*view->line));
2673 view->line_alloc = alloc;
2678 update_view(struct view *view)
2680 char out_buffer[BUFSIZ * 2];
2682 /* Clear the view and redraw everything since the tree sorting
2683 * might have rearranged things. */
2684 bool redraw = view == VIEW(REQ_VIEW_TREE);
2685 bool can_read = TRUE;
2690 if (!io_can_read(view->pipe)) {
2691 if (view->lines == 0) {
2692 time_t secs = time(NULL) - view->start_time;
2694 if (secs > view->update_secs) {
2695 if (view->update_secs == 0)
2697 update_view_title(view);
2698 view->update_secs = secs;
2704 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2705 size_t linelen = strlen(line);
2707 if (opt_iconv != ICONV_NONE) {
2708 ICONV_CONST char *inbuf = line;
2709 size_t inlen = linelen;
2711 char *outbuf = out_buffer;
2712 size_t outlen = sizeof(out_buffer);
2716 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2717 if (ret != (size_t) -1) {
2719 linelen = strlen(out_buffer);
2723 if (!view->ops->read(view, line))
2728 unsigned long lines = view->lines;
2731 for (digits = 0; lines; digits++)
2734 /* Keep the displayed view in sync with line number scaling. */
2735 if (digits != view->digits) {
2736 view->digits = digits;
2737 if (opt_line_number)
2742 if (io_error(view->pipe)) {
2743 report("Failed to read: %s", io_strerror(view->pipe));
2744 end_update(view, TRUE);
2746 } else if (io_eof(view->pipe)) {
2748 end_update(view, FALSE);
2751 if (!view_is_displayed(view))
2757 redraw_view_dirty(view);
2759 /* Update the title _after_ the redraw so that if the redraw picks up a
2760 * commit reference in view->ref it'll be available here. */
2761 update_view_title(view);
2765 report("Allocation failure");
2766 end_update(view, TRUE);
2770 static struct line *
2771 add_line_data(struct view *view, void *data, enum line_type type)
2775 if (!realloc_lines(view, view->lines + 1))
2778 line = &view->line[view->lines++];
2779 memset(line, 0, sizeof(*line));
2787 static struct line *
2788 add_line_text(struct view *view, const char *text, enum line_type type)
2790 char *data = text ? strdup(text) : NULL;
2792 return data ? add_line_data(view, data, type) : NULL;
2795 static struct line *
2796 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2798 char buf[SIZEOF_STR];
2801 va_start(args, fmt);
2802 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2806 return buf[0] ? add_line_text(view, buf, type) : NULL;
2814 OPEN_DEFAULT = 0, /* Use default view switching. */
2815 OPEN_SPLIT = 1, /* Split current view. */
2816 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2817 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2818 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2819 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2820 OPEN_PREPARED = 32, /* Open already prepared command. */
2824 open_view(struct view *prev, enum request request, enum open_flags flags)
2826 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2827 bool split = !!(flags & OPEN_SPLIT);
2828 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2829 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2830 struct view *view = VIEW(request);
2831 int nviews = displayed_views();
2832 struct view *base_view = display[0];
2834 if (view == prev && nviews == 1 && !reload) {
2835 report("Already in %s view", view->name);
2839 if (view->git_dir && !opt_git_dir[0]) {
2840 report("The %s view is disabled in pager view", view->name);
2848 } else if (!nomaximize) {
2849 /* Maximize the current view. */
2850 memset(display, 0, sizeof(display));
2852 display[current_view] = view;
2855 /* Resize the view when switching between split- and full-screen,
2856 * or when switching between two different full-screen views. */
2857 if (nviews != displayed_views() ||
2858 (nviews == 1 && base_view != display[0]))
2862 end_update(view, TRUE);
2864 if (view->ops->open) {
2865 if (!view->ops->open(view)) {
2866 report("Failed to load %s view", view->name);
2870 } else if ((reload || strcmp(view->vid, view->id)) &&
2871 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2872 report("Failed to load %s view", view->name);
2876 if (split && prev->lineno - prev->offset >= prev->height) {
2877 /* Take the title line into account. */
2878 int lines = prev->lineno - prev->offset - prev->height + 1;
2880 /* Scroll the view that was split if the current line is
2881 * outside the new limited view. */
2882 do_scroll_view(prev, lines);
2885 if (prev && view != prev) {
2886 if (split && !backgrounded) {
2887 /* "Blur" the previous view. */
2888 update_view_title(prev);
2891 view->parent = prev;
2894 if (view->pipe && view->lines == 0) {
2895 /* Clear the old view and let the incremental updating refill
2899 } else if (view_is_displayed(view)) {
2904 /* If the view is backgrounded the above calls to report()
2905 * won't redraw the view title. */
2907 update_view_title(view);
2911 open_external_viewer(const char *argv[], const char *dir)
2913 def_prog_mode(); /* save current tty modes */
2914 endwin(); /* restore original tty modes */
2915 run_io_fg(argv, dir);
2916 fprintf(stderr, "Press Enter to continue");
2923 open_mergetool(const char *file)
2925 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
2927 open_external_viewer(mergetool_argv, opt_cdup);
2931 open_editor(bool from_root, const char *file)
2933 const char *editor_argv[] = { "vi", file, NULL };
2936 editor = getenv("GIT_EDITOR");
2937 if (!editor && *opt_editor)
2938 editor = opt_editor;
2940 editor = getenv("VISUAL");
2942 editor = getenv("EDITOR");
2946 editor_argv[0] = editor;
2947 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
2951 open_run_request(enum request request)
2953 struct run_request *req = get_run_request(request);
2954 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
2957 report("Unknown run request");
2961 if (format_argv(argv, req->argv, FORMAT_ALL))
2962 open_external_viewer(argv, NULL);
2967 * User request switch noodle
2971 view_driver(struct view *view, enum request request)
2975 if (request == REQ_NONE) {
2980 if (request > REQ_NONE) {
2981 open_run_request(request);
2982 /* FIXME: When all views can refresh always do this. */
2983 if (view == VIEW(REQ_VIEW_STATUS) ||
2984 view == VIEW(REQ_VIEW_MAIN) ||
2985 view == VIEW(REQ_VIEW_LOG) ||
2986 view == VIEW(REQ_VIEW_STAGE))
2987 request = REQ_REFRESH;
2992 if (view && view->lines) {
2993 request = view->ops->request(view, request, &view->line[view->lineno]);
2994 if (request == REQ_NONE)
3001 case REQ_MOVE_PAGE_UP:
3002 case REQ_MOVE_PAGE_DOWN:
3003 case REQ_MOVE_FIRST_LINE:
3004 case REQ_MOVE_LAST_LINE:
3005 move_view(view, request);
3008 case REQ_SCROLL_LINE_DOWN:
3009 case REQ_SCROLL_LINE_UP:
3010 case REQ_SCROLL_PAGE_DOWN:
3011 case REQ_SCROLL_PAGE_UP:
3012 scroll_view(view, request);
3015 case REQ_VIEW_BLAME:
3017 report("No file chosen, press %s to open tree view",
3018 get_key(REQ_VIEW_TREE));
3021 open_view(view, request, OPEN_DEFAULT);
3026 report("No file chosen, press %s to open tree view",
3027 get_key(REQ_VIEW_TREE));
3030 open_view(view, request, OPEN_DEFAULT);
3033 case REQ_VIEW_PAGER:
3034 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3035 report("No pager content, press %s to run command from prompt",
3036 get_key(REQ_PROMPT));
3039 open_view(view, request, OPEN_DEFAULT);
3042 case REQ_VIEW_STAGE:
3043 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3044 report("No stage content, press %s to open the status view and choose file",
3045 get_key(REQ_VIEW_STATUS));
3048 open_view(view, request, OPEN_DEFAULT);
3051 case REQ_VIEW_STATUS:
3052 if (opt_is_inside_work_tree == FALSE) {
3053 report("The status view requires a working tree");
3056 open_view(view, request, OPEN_DEFAULT);
3064 open_view(view, request, OPEN_DEFAULT);
3069 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3071 if ((view == VIEW(REQ_VIEW_DIFF) &&
3072 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3073 (view == VIEW(REQ_VIEW_DIFF) &&
3074 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3075 (view == VIEW(REQ_VIEW_STAGE) &&
3076 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3077 (view == VIEW(REQ_VIEW_BLOB) &&
3078 view->parent == VIEW(REQ_VIEW_TREE))) {
3081 view = view->parent;
3082 line = view->lineno;
3083 move_view(view, request);
3084 if (view_is_displayed(view))
3085 update_view_title(view);
3086 if (line != view->lineno)
3087 view->ops->request(view, REQ_ENTER,
3088 &view->line[view->lineno]);
3091 move_view(view, request);
3097 int nviews = displayed_views();
3098 int next_view = (current_view + 1) % nviews;
3100 if (next_view == current_view) {
3101 report("Only one view is displayed");
3105 current_view = next_view;
3106 /* Blur out the title of the previous view. */
3107 update_view_title(view);
3112 report("Refreshing is not yet supported for the %s view", view->name);
3116 if (displayed_views() == 2)
3117 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3120 case REQ_TOGGLE_LINENO:
3121 opt_line_number = !opt_line_number;
3125 case REQ_TOGGLE_DATE:
3126 opt_date = !opt_date;
3130 case REQ_TOGGLE_AUTHOR:
3131 opt_author = !opt_author;
3135 case REQ_TOGGLE_REV_GRAPH:
3136 opt_rev_graph = !opt_rev_graph;
3140 case REQ_TOGGLE_REFS:
3141 opt_show_refs = !opt_show_refs;
3146 case REQ_SEARCH_BACK:
3147 search_view(view, request);
3152 find_next(view, request);
3155 case REQ_STOP_LOADING:
3156 for (i = 0; i < ARRAY_SIZE(views); i++) {
3159 report("Stopped loading the %s view", view->name),
3160 end_update(view, TRUE);
3164 case REQ_SHOW_VERSION:
3165 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3168 case REQ_SCREEN_RESIZE:
3171 case REQ_SCREEN_REDRAW:
3176 report("Nothing to edit");
3180 report("Nothing to enter");
3183 case REQ_VIEW_CLOSE:
3184 /* XXX: Mark closed views by letting view->parent point to the
3185 * view itself. Parents to closed view should never be
3188 view->parent->parent != view->parent) {
3189 memset(display, 0, sizeof(display));
3191 display[current_view] = view->parent;
3192 view->parent = view;
3203 report("Unknown key, press 'h' for help");
3216 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3218 char *text = line->data;
3220 if (opt_line_number && draw_lineno(view, lineno))
3223 draw_text(view, line->type, text, TRUE);
3228 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3230 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3231 char refbuf[SIZEOF_STR];
3234 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3235 ref = chomp_string(refbuf);
3240 /* This is the only fatal call, since it can "corrupt" the buffer. */
3241 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3248 add_pager_refs(struct view *view, struct line *line)
3250 char buf[SIZEOF_STR];
3251 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3253 size_t bufpos = 0, refpos = 0;
3254 const char *sep = "Refs: ";
3255 bool is_tag = FALSE;
3257 assert(line->type == LINE_COMMIT);
3259 refs = get_refs(commit_id);
3261 if (view == VIEW(REQ_VIEW_DIFF))
3262 goto try_add_describe_ref;
3267 struct ref *ref = refs[refpos];
3268 const char *fmt = ref->tag ? "%s[%s]" :
3269 ref->remote ? "%s<%s>" : "%s%s";
3271 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3276 } while (refs[refpos++]->next);
3278 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3279 try_add_describe_ref:
3280 /* Add <tag>-g<commit_id> "fake" reference. */
3281 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3288 add_line_text(view, buf, LINE_PP_REFS);
3292 pager_read(struct view *view, char *data)
3299 line = add_line_text(view, data, get_line_type(data));
3303 if (line->type == LINE_COMMIT &&
3304 (view == VIEW(REQ_VIEW_DIFF) ||
3305 view == VIEW(REQ_VIEW_LOG)))
3306 add_pager_refs(view, line);
3312 pager_request(struct view *view, enum request request, struct line *line)
3316 if (request != REQ_ENTER)
3319 if (line->type == LINE_COMMIT &&
3320 (view == VIEW(REQ_VIEW_LOG) ||
3321 view == VIEW(REQ_VIEW_PAGER))) {
3322 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3326 /* Always scroll the view even if it was split. That way
3327 * you can use Enter to scroll through the log view and
3328 * split open each commit diff. */
3329 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3331 /* FIXME: A minor workaround. Scrolling the view will call report("")
3332 * but if we are scrolling a non-current view this won't properly
3333 * update the view title. */
3335 update_view_title(view);
3341 pager_grep(struct view *view, struct line *line)
3344 char *text = line->data;
3349 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3356 pager_select(struct view *view, struct line *line)
3358 if (line->type == LINE_COMMIT) {
3359 char *text = (char *)line->data + STRING_SIZE("commit ");
3361 if (view != VIEW(REQ_VIEW_PAGER))
3362 string_copy_rev(view->ref, text);
3363 string_copy_rev(ref_commit, text);
3367 static struct view_ops pager_ops = {
3378 static const char *log_argv[SIZEOF_ARG] = {
3379 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3383 log_request(struct view *view, enum request request, struct line *line)
3388 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3391 return pager_request(view, request, line);
3395 static struct view_ops log_ops = {
3406 static const char *diff_argv[SIZEOF_ARG] = {
3407 "git", "show", "--pretty=fuller", "--no-color", "--root",
3408 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3411 static struct view_ops diff_ops = {
3427 help_open(struct view *view)
3429 int lines = ARRAY_SIZE(req_info) + 2;
3432 if (view->lines > 0)
3435 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3436 if (!req_info[i].request)
3439 lines += run_requests + 1;
3441 view->line = calloc(lines, sizeof(*view->line));
3445 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3447 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3450 if (req_info[i].request == REQ_NONE)
3453 if (!req_info[i].request) {
3454 add_line_text(view, "", LINE_DEFAULT);
3455 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3459 key = get_key(req_info[i].request);
3461 key = "(no key defined)";
3463 add_line_format(view, LINE_DEFAULT, " %-25s %s",
3464 key, req_info[i].help);
3468 add_line_text(view, "", LINE_DEFAULT);
3469 add_line_text(view, "External commands:", LINE_DEFAULT);
3472 for (i = 0; i < run_requests; i++) {
3473 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3475 char cmd[SIZEOF_STR];
3482 key = get_key_name(req->key);
3484 key = "(no key defined)";
3486 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3487 if (!string_format_from(cmd, &bufpos, "%s%s",
3488 argc ? " " : "", req->argv[argc]))
3491 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3492 keymap_table[req->keymap].name, key, cmd);
3498 static struct view_ops help_ops = {
3514 struct tree_stack_entry {
3515 struct tree_stack_entry *prev; /* Entry below this in the stack */
3516 unsigned long lineno; /* Line number to restore */
3517 char *name; /* Position of name in opt_path */
3520 /* The top of the path stack. */
3521 static struct tree_stack_entry *tree_stack = NULL;
3522 unsigned long tree_lineno = 0;
3525 pop_tree_stack_entry(void)
3527 struct tree_stack_entry *entry = tree_stack;
3529 tree_lineno = entry->lineno;
3531 tree_stack = entry->prev;
3536 push_tree_stack_entry(const char *name, unsigned long lineno)
3538 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3539 size_t pathlen = strlen(opt_path);
3544 entry->prev = tree_stack;
3545 entry->name = opt_path + pathlen;
3548 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3549 pop_tree_stack_entry();
3553 /* Move the current line to the first tree entry. */
3555 entry->lineno = lineno;
3558 /* Parse output from git-ls-tree(1):
3560 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3561 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3562 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3563 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3566 #define SIZEOF_TREE_ATTR \
3567 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3569 #define TREE_UP_FORMAT "040000 tree %s\t.."
3572 tree_path(struct line *line)
3574 const char *path = line->data;
3576 return path + SIZEOF_TREE_ATTR;
3580 tree_compare_entry(struct line *line1, struct line *line2)
3582 if (line1->type != line2->type)
3583 return line1->type == LINE_TREE_DIR ? -1 : 1;
3584 return strcmp(tree_path(line1), tree_path(line2));
3588 tree_read(struct view *view, char *text)
3590 size_t textlen = text ? strlen(text) : 0;
3591 struct line *entry, *line;
3592 enum line_type type;
3596 if (textlen <= SIZEOF_TREE_ATTR)
3599 type = text[STRING_SIZE("100644 ")] == 't'
3600 ? LINE_TREE_DIR : LINE_TREE_FILE;
3602 if (view->lines == 0 &&
3603 !add_line_format(view, LINE_DEFAULT, "Directory path /%s", opt_path))
3606 /* Strip the path part ... */
3608 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3609 size_t striplen = strlen(opt_path);
3610 char *path = text + SIZEOF_TREE_ATTR;
3612 if (pathlen > striplen)
3613 memmove(path, path + striplen,
3614 pathlen - striplen + 1);
3616 /* Insert "link" to parent directory. */
3617 if (view->lines == 1 &&
3618 !add_line_format(view, LINE_TREE_DIR, TREE_UP_FORMAT, view->ref))
3622 entry = add_line_text(view, text, type);
3627 /* Skip "Directory ..." and ".." line. */
3628 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3629 if (tree_compare_entry(line, entry) <= 0)
3632 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3639 if (tree_lineno > view->lineno) {
3640 view->lineno = tree_lineno;
3648 tree_request(struct view *view, enum request request, struct line *line)
3650 enum open_flags flags;
3653 case REQ_VIEW_BLAME:
3654 if (line->type != LINE_TREE_FILE) {
3655 report("Blame only supported for files");
3659 string_copy(opt_ref, view->vid);
3663 if (line->type != LINE_TREE_FILE) {
3664 report("Edit only supported for files");
3665 } else if (!is_head_commit(view->vid)) {
3666 report("Edit only supported for files in the current work tree");
3668 open_editor(TRUE, opt_file);
3672 case REQ_TREE_PARENT:
3674 /* quit view if at top of tree */
3675 return REQ_VIEW_CLOSE;
3678 line = &view->line[1];
3688 /* Cleanup the stack if the tree view is at a different tree. */
3689 while (!*opt_path && tree_stack)
3690 pop_tree_stack_entry();
3692 switch (line->type) {
3694 /* Depending on whether it is a subdir or parent (updir?) link
3695 * mangle the path buffer. */
3696 if (line == &view->line[1] && *opt_path) {
3697 pop_tree_stack_entry();
3700 const char *basename = tree_path(line);
3702 push_tree_stack_entry(basename, view->lineno);
3705 /* Trees and subtrees share the same ID, so they are not not
3706 * unique like blobs. */
3707 flags = OPEN_RELOAD;
3708 request = REQ_VIEW_TREE;
3711 case LINE_TREE_FILE:
3712 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3713 request = REQ_VIEW_BLOB;
3720 open_view(view, request, flags);
3721 if (request == REQ_VIEW_TREE) {
3722 view->lineno = tree_lineno;
3729 tree_select(struct view *view, struct line *line)
3731 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3733 if (line->type == LINE_TREE_FILE) {
3734 string_copy_rev(ref_blob, text);
3735 string_format(opt_file, "%s%s", opt_path, tree_path(line));
3737 } else if (line->type != LINE_TREE_DIR) {
3741 string_copy_rev(view->ref, text);
3744 static const char *tree_argv[SIZEOF_ARG] = {
3745 "git", "ls-tree", "%(commit)", "%(directory)", NULL
3748 static struct view_ops tree_ops = {
3760 blob_read(struct view *view, char *line)
3764 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3767 static const char *blob_argv[SIZEOF_ARG] = {
3768 "git", "cat-file", "blob", "%(blob)", NULL
3771 static struct view_ops blob_ops = {
3785 * Loading the blame view is a two phase job:
3787 * 1. File content is read either using opt_file from the
3788 * filesystem or using git-cat-file.
3789 * 2. Then blame information is incrementally added by
3790 * reading output from git-blame.
3793 static const char *blame_head_argv[] = {
3794 "git", "blame", "--incremental", "--", "%(file)", NULL
3797 static const char *blame_ref_argv[] = {
3798 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
3801 static const char *blame_cat_file_argv[] = {
3802 "git", "cat-file", "blob", "%(ref):%(file)", NULL
3805 struct blame_commit {
3806 char id[SIZEOF_REV]; /* SHA1 ID. */
3807 char title[128]; /* First line of the commit message. */
3808 char author[75]; /* Author of the commit. */
3809 struct tm time; /* Date from the author ident. */
3810 char filename[128]; /* Name of file. */
3814 struct blame_commit *commit;
3819 blame_open(struct view *view)
3821 if (*opt_ref || !io_open(&view->io, opt_file)) {
3822 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
3826 setup_update(view, opt_file);
3827 string_format(view->ref, "%s ...", opt_file);
3832 static struct blame_commit *
3833 get_blame_commit(struct view *view, const char *id)
3837 for (i = 0; i < view->lines; i++) {
3838 struct blame *blame = view->line[i].data;
3843 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3844 return blame->commit;
3848 struct blame_commit *commit = calloc(1, sizeof(*commit));
3851 string_ncopy(commit->id, id, SIZEOF_REV);
3857 parse_number(const char **posref, size_t *number, size_t min, size_t max)
3859 const char *pos = *posref;
3862 pos = strchr(pos + 1, ' ');
3863 if (!pos || !isdigit(pos[1]))
3865 *number = atoi(pos + 1);
3866 if (*number < min || *number > max)
3873 static struct blame_commit *
3874 parse_blame_commit(struct view *view, const char *text, int *blamed)
3876 struct blame_commit *commit;
3877 struct blame *blame;
3878 const char *pos = text + SIZEOF_REV - 1;
3882 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3885 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3886 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3889 commit = get_blame_commit(view, text);
3895 struct line *line = &view->line[lineno + group - 1];
3898 blame->commit = commit;
3906 blame_read_file(struct view *view, const char *line, bool *read_file)
3909 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
3912 if (view->lines == 0 && !view->parent)
3913 die("No blame exist for %s", view->vid);
3915 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
3916 report("Failed to load blame data");
3920 done_io(view->pipe);
3926 size_t linelen = strlen(line);
3927 struct blame *blame = malloc(sizeof(*blame) + linelen);
3929 blame->commit = NULL;
3930 strncpy(blame->text, line, linelen);
3931 blame->text[linelen] = 0;
3932 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3937 match_blame_header(const char *name, char **line)
3939 size_t namelen = strlen(name);
3940 bool matched = !strncmp(name, *line, namelen);
3949 blame_read(struct view *view, char *line)
3951 static struct blame_commit *commit = NULL;
3952 static int blamed = 0;
3953 static time_t author_time;
3954 static bool read_file = TRUE;
3957 return blame_read_file(view, line, &read_file);
3964 string_format(view->ref, "%s", view->vid);
3965 if (view_is_displayed(view)) {
3966 update_view_title(view);
3967 redraw_view_from(view, 0);
3973 commit = parse_blame_commit(view, line, &blamed);
3974 string_format(view->ref, "%s %2d%%", view->vid,
3975 blamed * 100 / view->lines);
3977 } else if (match_blame_header("author ", &line)) {
3978 string_ncopy(commit->author, line, strlen(line));
3980 } else if (match_blame_header("author-time ", &line)) {
3981 author_time = (time_t) atol(line);
3983 } else if (match_blame_header("author-tz ", &line)) {
3986 tz = ('0' - line[1]) * 60 * 60 * 10;
3987 tz += ('0' - line[2]) * 60 * 60;
3988 tz += ('0' - line[3]) * 60;
3989 tz += ('0' - line[4]) * 60;
3995 gmtime_r(&author_time, &commit->time);
3997 } else if (match_blame_header("summary ", &line)) {
3998 string_ncopy(commit->title, line, strlen(line));
4000 } else if (match_blame_header("filename ", &line)) {
4001 string_ncopy(commit->filename, line, strlen(line));
4009 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4011 struct blame *blame = line->data;
4012 struct tm *time = NULL;
4013 const char *id = NULL, *author = NULL;
4015 if (blame->commit && *blame->commit->filename) {
4016 id = blame->commit->id;
4017 author = blame->commit->author;
4018 time = &blame->commit->time;
4021 if (opt_date && draw_date(view, time))
4025 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
4028 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4031 if (draw_lineno(view, lineno))
4034 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4039 blame_request(struct view *view, enum request request, struct line *line)
4041 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4042 struct blame *blame = line->data;
4045 case REQ_VIEW_BLAME:
4046 if (!blame->commit || !strcmp(blame->commit->id, NULL_ID)) {
4047 report("Commit ID unknown");
4050 string_copy(opt_ref, blame->commit->id);
4051 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4055 if (!blame->commit) {
4056 report("No commit loaded yet");
4060 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4061 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4064 if (!strcmp(blame->commit->id, NULL_ID)) {
4065 struct view *diff = VIEW(REQ_VIEW_DIFF);
4066 const char *diff_index_argv[] = {
4067 "git", "diff-index", "--root", "--cached",
4068 "--patch-with-stat", "-C", "-M",
4069 "HEAD", "--", view->vid, NULL
4072 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4073 report("Failed to allocate diff command");
4076 flags |= OPEN_PREPARED;
4079 open_view(view, REQ_VIEW_DIFF, flags);
4090 blame_grep(struct view *view, struct line *line)
4092 struct blame *blame = line->data;
4093 struct blame_commit *commit = blame->commit;
4096 #define MATCH(text, on) \
4097 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4100 char buf[DATE_COLS + 1];
4102 if (MATCH(commit->title, 1) ||
4103 MATCH(commit->author, opt_author) ||
4104 MATCH(commit->id, opt_date))
4107 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4112 return MATCH(blame->text, 1);
4118 blame_select(struct view *view, struct line *line)
4120 struct blame *blame = line->data;
4121 struct blame_commit *commit = blame->commit;
4126 if (!strcmp(commit->id, NULL_ID))
4127 string_ncopy(ref_commit, "HEAD", 4);
4129 string_copy_rev(ref_commit, commit->id);
4132 static struct view_ops blame_ops = {
4151 char rev[SIZEOF_REV];
4152 char name[SIZEOF_STR];
4156 char rev[SIZEOF_REV];
4157 char name[SIZEOF_STR];
4161 static char status_onbranch[SIZEOF_STR];
4162 static struct status stage_status;
4163 static enum line_type stage_line_type;
4164 static size_t stage_chunks;
4165 static int *stage_chunk;
4167 /* This should work even for the "On branch" line. */
4169 status_has_none(struct view *view, struct line *line)
4171 return line < view->line + view->lines && !line[1].data;
4174 /* Get fields from the diff line:
4175 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4178 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4180 const char *old_mode = buf + 1;
4181 const char *new_mode = buf + 8;
4182 const char *old_rev = buf + 15;
4183 const char *new_rev = buf + 56;
4184 const char *status = buf + 97;
4187 old_mode[-1] != ':' ||
4188 new_mode[-1] != ' ' ||
4189 old_rev[-1] != ' ' ||
4190 new_rev[-1] != ' ' ||
4194 file->status = *status;
4196 string_copy_rev(file->old.rev, old_rev);
4197 string_copy_rev(file->new.rev, new_rev);
4199 file->old.mode = strtoul(old_mode, NULL, 8);
4200 file->new.mode = strtoul(new_mode, NULL, 8);
4202 file->old.name[0] = file->new.name[0] = 0;
4208 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4210 struct status *file = NULL;
4211 struct status *unmerged = NULL;
4215 if (!run_io(&io, argv, NULL, IO_RD))
4218 add_line_data(view, NULL, type);
4220 while ((buf = io_get(&io, 0, TRUE))) {
4222 file = calloc(1, sizeof(*file));
4223 if (!file || !add_line_data(view, file, type))
4227 /* Parse diff info part. */
4229 file->status = status;
4231 string_copy(file->old.rev, NULL_ID);
4233 } else if (!file->status) {
4234 if (!status_get_diff(file, buf, strlen(buf)))
4237 buf = io_get(&io, 0, TRUE);
4241 /* Collapse all 'M'odified entries that follow a
4242 * associated 'U'nmerged entry. */
4243 if (file->status == 'U') {
4246 } else if (unmerged) {
4247 int collapse = !strcmp(buf, unmerged->new.name);
4258 /* Grab the old name for rename/copy. */
4259 if (!*file->old.name &&
4260 (file->status == 'R' || file->status == 'C')) {
4261 string_ncopy(file->old.name, buf, strlen(buf));
4263 buf = io_get(&io, 0, TRUE);
4268 /* git-ls-files just delivers a NUL separated list of
4269 * file names similar to the second half of the
4270 * git-diff-* output. */
4271 string_ncopy(file->new.name, buf, strlen(buf));
4272 if (!*file->old.name)
4273 string_copy(file->old.name, file->new.name);
4277 if (io_error(&io)) {
4283 if (!view->line[view->lines - 1].data)
4284 add_line_data(view, NULL, LINE_STAT_NONE);
4290 /* Don't show unmerged entries in the staged section. */
4291 static const char *status_diff_index_argv[] = {
4292 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4293 "--cached", "-M", "HEAD", NULL
4296 static const char *status_diff_files_argv[] = {
4297 "git", "diff-files", "-z", NULL
4300 static const char *status_list_other_argv[] = {
4301 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4304 static const char *status_list_no_head_argv[] = {
4305 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4308 static const char *update_index_argv[] = {
4309 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4312 /* First parse staged info using git-diff-index(1), then parse unstaged
4313 * info using git-diff-files(1), and finally untracked files using
4314 * git-ls-files(1). */
4316 status_open(struct view *view)
4318 unsigned long prev_lineno = view->lineno;
4322 add_line_data(view, NULL, LINE_STAT_HEAD);
4323 if (is_initial_commit())
4324 string_copy(status_onbranch, "Initial commit");
4325 else if (!*opt_head)
4326 string_copy(status_onbranch, "Not currently on any branch");
4327 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4330 run_io_bg(update_index_argv);
4332 if (is_initial_commit()) {
4333 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4335 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4339 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4340 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4343 /* If all went well restore the previous line number to stay in
4344 * the context or select a line with something that can be
4346 if (prev_lineno >= view->lines)
4347 prev_lineno = view->lines - 1;
4348 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4350 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4353 /* If the above fails, always skip the "On branch" line. */
4354 if (prev_lineno < view->lines)
4355 view->lineno = prev_lineno;
4359 if (view->lineno < view->offset)
4360 view->offset = view->lineno;
4361 else if (view->offset + view->height <= view->lineno)
4362 view->offset = view->lineno - view->height + 1;
4368 status_draw(struct view *view, struct line *line, unsigned int lineno)
4370 struct status *status = line->data;
4371 enum line_type type;
4375 switch (line->type) {
4376 case LINE_STAT_STAGED:
4377 type = LINE_STAT_SECTION;
4378 text = "Changes to be committed:";
4381 case LINE_STAT_UNSTAGED:
4382 type = LINE_STAT_SECTION;
4383 text = "Changed but not updated:";
4386 case LINE_STAT_UNTRACKED:
4387 type = LINE_STAT_SECTION;
4388 text = "Untracked files:";
4391 case LINE_STAT_NONE:
4392 type = LINE_DEFAULT;
4393 text = " (no files)";
4396 case LINE_STAT_HEAD:
4397 type = LINE_STAT_HEAD;
4398 text = status_onbranch;
4405 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4407 buf[0] = status->status;
4408 if (draw_text(view, line->type, buf, TRUE))
4410 type = LINE_DEFAULT;
4411 text = status->new.name;
4414 draw_text(view, type, text, TRUE);
4419 status_enter(struct view *view, struct line *line)
4421 struct status *status = line->data;
4422 const char *oldpath = status ? status->old.name : NULL;
4423 /* Diffs for unmerged entries are empty when passing the new
4424 * path, so leave it empty. */
4425 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4427 enum open_flags split;
4428 struct view *stage = VIEW(REQ_VIEW_STAGE);
4430 if (line->type == LINE_STAT_NONE ||
4431 (!status && line[1].type == LINE_STAT_NONE)) {
4432 report("No file to diff");
4436 switch (line->type) {
4437 case LINE_STAT_STAGED:
4438 if (is_initial_commit()) {
4439 const char *no_head_diff_argv[] = {
4440 "git", "diff", "--no-color", "--patch-with-stat",
4441 "--", "/dev/null", newpath, NULL
4444 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4447 const char *index_show_argv[] = {
4448 "git", "diff-index", "--root", "--patch-with-stat",
4449 "-C", "-M", "--cached", "HEAD", "--",
4450 oldpath, newpath, NULL
4453 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4458 info = "Staged changes to %s";
4460 info = "Staged changes";
4463 case LINE_STAT_UNSTAGED:
4465 const char *files_show_argv[] = {
4466 "git", "diff-files", "--root", "--patch-with-stat",
4467 "-C", "-M", "--", oldpath, newpath, NULL
4470 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4473 info = "Unstaged changes to %s";
4475 info = "Unstaged changes";
4478 case LINE_STAT_UNTRACKED:
4480 report("No file to show");
4484 if (!suffixcmp(status->new.name, -1, "/")) {
4485 report("Cannot display a directory");
4489 if (!prepare_update_file(stage, newpath))
4491 info = "Untracked file %s";
4494 case LINE_STAT_HEAD:
4498 die("line type %d not handled in switch", line->type);
4501 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4502 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH | split);
4503 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4505 stage_status = *status;
4507 memset(&stage_status, 0, sizeof(stage_status));
4510 stage_line_type = line->type;
4512 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4519 status_exists(struct status *status, enum line_type type)
4521 struct view *view = VIEW(REQ_VIEW_STATUS);
4524 for (line = view->line; line < view->line + view->lines; line++) {
4525 struct status *pos = line->data;
4527 if (line->type == type && pos &&
4528 !strcmp(status->new.name, pos->new.name))
4537 status_update_prepare(struct io *io, enum line_type type)
4539 const char *staged_argv[] = {
4540 "git", "update-index", "-z", "--index-info", NULL
4542 const char *others_argv[] = {
4543 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4547 case LINE_STAT_STAGED:
4548 return run_io(io, staged_argv, opt_cdup, IO_WR);
4550 case LINE_STAT_UNSTAGED:
4551 return run_io(io, others_argv, opt_cdup, IO_WR);
4553 case LINE_STAT_UNTRACKED:
4554 return run_io(io, others_argv, NULL, IO_WR);
4557 die("line type %d not handled in switch", type);
4563 status_update_write(struct io *io, struct status *status, enum line_type type)
4565 char buf[SIZEOF_STR];
4569 case LINE_STAT_STAGED:
4570 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4573 status->old.name, 0))
4577 case LINE_STAT_UNSTAGED:
4578 case LINE_STAT_UNTRACKED:
4579 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4584 die("line type %d not handled in switch", type);
4587 return io_write(io, buf, bufsize);
4591 status_update_file(struct status *status, enum line_type type)
4596 if (!status_update_prepare(&io, type))
4599 result = status_update_write(&io, status, type);
4605 status_update_files(struct view *view, struct line *line)
4609 struct line *pos = view->line + view->lines;
4613 if (!status_update_prepare(&io, line->type))
4616 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4619 for (file = 0, done = 0; result && file < files; line++, file++) {
4620 int almost_done = file * 100 / files;
4622 if (almost_done > done) {
4624 string_format(view->ref, "updating file %u of %u (%d%% done)",
4626 update_view_title(view);
4628 result = status_update_write(&io, line->data, line->type);
4636 status_update(struct view *view)
4638 struct line *line = &view->line[view->lineno];
4640 assert(view->lines);
4643 /* This should work even for the "On branch" line. */
4644 if (line < view->line + view->lines && !line[1].data) {
4645 report("Nothing to update");
4649 if (!status_update_files(view, line + 1)) {
4650 report("Failed to update file status");
4654 } else if (!status_update_file(line->data, line->type)) {
4655 report("Failed to update file status");
4663 status_revert(struct status *status, enum line_type type, bool has_none)
4665 if (!status || type != LINE_STAT_UNSTAGED) {
4666 if (type == LINE_STAT_STAGED) {
4667 report("Cannot revert changes to staged files");
4668 } else if (type == LINE_STAT_UNTRACKED) {
4669 report("Cannot revert changes to untracked files");
4670 } else if (has_none) {
4671 report("Nothing to revert");
4673 report("Cannot revert changes to multiple files");
4678 const char *checkout_argv[] = {
4679 "git", "checkout", "--", status->old.name, NULL
4682 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
4684 return run_io_fg(checkout_argv, opt_cdup);
4689 status_request(struct view *view, enum request request, struct line *line)
4691 struct status *status = line->data;
4694 case REQ_STATUS_UPDATE:
4695 if (!status_update(view))
4699 case REQ_STATUS_REVERT:
4700 if (!status_revert(status, line->type, status_has_none(view, line)))
4704 case REQ_STATUS_MERGE:
4705 if (!status || status->status != 'U') {
4706 report("Merging only possible for files with unmerged status ('U').");
4709 open_mergetool(status->new.name);
4715 if (status->status == 'D') {
4716 report("File has been deleted.");
4720 open_editor(status->status != '?', status->new.name);
4723 case REQ_VIEW_BLAME:
4725 string_copy(opt_file, status->new.name);
4731 /* After returning the status view has been split to
4732 * show the stage view. No further reloading is
4734 status_enter(view, line);
4738 /* Simply reload the view. */
4745 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4751 status_select(struct view *view, struct line *line)
4753 struct status *status = line->data;
4754 char file[SIZEOF_STR] = "all files";
4758 if (status && !string_format(file, "'%s'", status->new.name))
4761 if (!status && line[1].type == LINE_STAT_NONE)
4764 switch (line->type) {
4765 case LINE_STAT_STAGED:
4766 text = "Press %s to unstage %s for commit";
4769 case LINE_STAT_UNSTAGED:
4770 text = "Press %s to stage %s for commit";
4773 case LINE_STAT_UNTRACKED:
4774 text = "Press %s to stage %s for addition";
4777 case LINE_STAT_HEAD:
4778 case LINE_STAT_NONE:
4779 text = "Nothing to update";
4783 die("line type %d not handled in switch", line->type);
4786 if (status && status->status == 'U') {
4787 text = "Press %s to resolve conflict in %s";
4788 key = get_key(REQ_STATUS_MERGE);
4791 key = get_key(REQ_STATUS_UPDATE);
4794 string_format(view->ref, text, key, file);
4798 status_grep(struct view *view, struct line *line)
4800 struct status *status = line->data;
4801 enum { S_STATUS, S_NAME, S_END } state;
4808 for (state = S_STATUS; state < S_END; state++) {
4812 case S_NAME: text = status->new.name; break;
4814 buf[0] = status->status;
4822 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4829 static struct view_ops status_ops = {
4842 stage_diff_write(struct io *io, struct line *line, struct line *end)
4844 while (line < end) {
4845 if (!io_write(io, line->data, strlen(line->data)) ||
4846 !io_write(io, "\n", 1))
4849 if (line->type == LINE_DIFF_CHUNK ||
4850 line->type == LINE_DIFF_HEADER)
4857 static struct line *
4858 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4860 for (; view->line < line; line--)
4861 if (line->type == type)
4868 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
4870 const char *apply_argv[SIZEOF_ARG] = {
4871 "git", "apply", "--whitespace=nowarn", NULL
4873 struct line *diff_hdr;
4877 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4882 apply_argv[argc++] = "--cached";
4883 if (revert || stage_line_type == LINE_STAT_STAGED)
4884 apply_argv[argc++] = "-R";
4885 apply_argv[argc++] = "-";
4886 apply_argv[argc++] = NULL;
4887 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
4890 if (!stage_diff_write(&io, diff_hdr, chunk) ||
4891 !stage_diff_write(&io, chunk, view->line + view->lines))
4895 run_io_bg(update_index_argv);
4897 return chunk ? TRUE : FALSE;
4901 stage_update(struct view *view, struct line *line)
4903 struct line *chunk = NULL;
4905 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
4906 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4909 if (!stage_apply_chunk(view, chunk, FALSE)) {
4910 report("Failed to apply chunk");
4914 } else if (!stage_status.status) {
4915 view = VIEW(REQ_VIEW_STATUS);
4917 for (line = view->line; line < view->line + view->lines; line++)
4918 if (line->type == stage_line_type)
4921 if (!status_update_files(view, line + 1)) {
4922 report("Failed to update files");
4926 } else if (!status_update_file(&stage_status, stage_line_type)) {
4927 report("Failed to update file");
4935 stage_revert(struct view *view, struct line *line)
4937 struct line *chunk = NULL;
4939 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
4940 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4943 if (!prompt_yesno("Are you sure you want to revert changes?"))
4946 if (!stage_apply_chunk(view, chunk, TRUE)) {
4947 report("Failed to revert chunk");
4953 return status_revert(stage_status.status ? &stage_status : NULL,
4954 stage_line_type, FALSE);
4960 stage_next(struct view *view, struct line *line)
4964 if (!stage_chunks) {
4965 static size_t alloc = 0;
4968 for (line = view->line; line < view->line + view->lines; line++) {
4969 if (line->type != LINE_DIFF_CHUNK)
4972 tmp = realloc_items(stage_chunk, &alloc,
4973 stage_chunks, sizeof(*tmp));
4975 report("Allocation failure");
4980 stage_chunk[stage_chunks++] = line - view->line;
4984 for (i = 0; i < stage_chunks; i++) {
4985 if (stage_chunk[i] > view->lineno) {
4986 do_scroll_view(view, stage_chunk[i] - view->lineno);
4987 report("Chunk %d of %d", i + 1, stage_chunks);
4992 report("No next chunk found");
4996 stage_request(struct view *view, enum request request, struct line *line)
4999 case REQ_STATUS_UPDATE:
5000 if (!stage_update(view, line))
5004 case REQ_STATUS_REVERT:
5005 if (!stage_revert(view, line))
5009 case REQ_STAGE_NEXT:
5010 if (stage_line_type == LINE_STAT_UNTRACKED) {
5011 report("File is untracked; press %s to add",
5012 get_key(REQ_STATUS_UPDATE));
5015 stage_next(view, line);
5019 if (!stage_status.new.name[0])
5021 if (stage_status.status == 'D') {
5022 report("File has been deleted.");
5026 open_editor(stage_status.status != '?', stage_status.new.name);
5030 /* Reload everything ... */
5033 case REQ_VIEW_BLAME:
5034 if (stage_status.new.name[0]) {
5035 string_copy(opt_file, stage_status.new.name);
5041 return pager_request(view, request, line);
5047 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5049 /* Check whether the staged entry still exists, and close the
5050 * stage view if it doesn't. */
5051 if (!status_exists(&stage_status, stage_line_type))
5052 return REQ_VIEW_CLOSE;
5054 if (stage_line_type == LINE_STAT_UNTRACKED) {
5055 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5056 report("Cannot display a directory");
5060 if (!prepare_update_file(view, stage_status.new.name)) {
5061 report("Failed to open file: %s", strerror(errno));
5065 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5070 static struct view_ops stage_ops = {
5087 char id[SIZEOF_REV]; /* SHA1 ID. */
5088 char title[128]; /* First line of the commit message. */
5089 char author[75]; /* Author of the commit. */
5090 struct tm time; /* Date from the author ident. */
5091 struct ref **refs; /* Repository references. */
5092 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5093 size_t graph_size; /* The width of the graph array. */
5094 bool has_parents; /* Rewritten --parents seen. */
5097 /* Size of rev graph with no "padding" columns */
5098 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5101 struct rev_graph *prev, *next, *parents;
5102 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5104 struct commit *commit;
5106 unsigned int boundary:1;
5109 /* Parents of the commit being visualized. */
5110 static struct rev_graph graph_parents[4];
5112 /* The current stack of revisions on the graph. */
5113 static struct rev_graph graph_stacks[4] = {
5114 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5115 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5116 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5117 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5121 graph_parent_is_merge(struct rev_graph *graph)
5123 return graph->parents->size > 1;
5127 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5129 struct commit *commit = graph->commit;
5131 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5132 commit->graph[commit->graph_size++] = symbol;
5136 clear_rev_graph(struct rev_graph *graph)
5138 graph->boundary = 0;
5139 graph->size = graph->pos = 0;
5140 graph->commit = NULL;
5141 memset(graph->parents, 0, sizeof(*graph->parents));
5145 done_rev_graph(struct rev_graph *graph)
5147 if (graph_parent_is_merge(graph) &&
5148 graph->pos < graph->size - 1 &&
5149 graph->next->size == graph->size + graph->parents->size - 1) {
5150 size_t i = graph->pos + graph->parents->size - 1;
5152 graph->commit->graph_size = i * 2;
5153 while (i < graph->next->size - 1) {
5154 append_to_rev_graph(graph, ' ');
5155 append_to_rev_graph(graph, '\\');
5160 clear_rev_graph(graph);
5164 push_rev_graph(struct rev_graph *graph, const char *parent)
5168 /* "Collapse" duplicate parents lines.
5170 * FIXME: This needs to also update update the drawn graph but
5171 * for now it just serves as a method for pruning graph lines. */
5172 for (i = 0; i < graph->size; i++)
5173 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5176 if (graph->size < SIZEOF_REVITEMS) {
5177 string_copy_rev(graph->rev[graph->size++], parent);
5182 get_rev_graph_symbol(struct rev_graph *graph)
5186 if (graph->boundary)
5187 symbol = REVGRAPH_BOUND;
5188 else if (graph->parents->size == 0)
5189 symbol = REVGRAPH_INIT;
5190 else if (graph_parent_is_merge(graph))
5191 symbol = REVGRAPH_MERGE;
5192 else if (graph->pos >= graph->size)
5193 symbol = REVGRAPH_BRANCH;
5195 symbol = REVGRAPH_COMMIT;
5201 draw_rev_graph(struct rev_graph *graph)
5204 chtype separator, line;
5206 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5207 static struct rev_filler fillers[] = {
5213 chtype symbol = get_rev_graph_symbol(graph);
5214 struct rev_filler *filler;
5217 if (opt_line_graphics)
5218 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5220 filler = &fillers[DEFAULT];
5222 for (i = 0; i < graph->pos; i++) {
5223 append_to_rev_graph(graph, filler->line);
5224 if (graph_parent_is_merge(graph->prev) &&
5225 graph->prev->pos == i)
5226 filler = &fillers[RSHARP];
5228 append_to_rev_graph(graph, filler->separator);
5231 /* Place the symbol for this revision. */
5232 append_to_rev_graph(graph, symbol);
5234 if (graph->prev->size > graph->size)
5235 filler = &fillers[RDIAG];
5237 filler = &fillers[DEFAULT];
5241 for (; i < graph->size; i++) {
5242 append_to_rev_graph(graph, filler->separator);
5243 append_to_rev_graph(graph, filler->line);
5244 if (graph_parent_is_merge(graph->prev) &&
5245 i < graph->prev->pos + graph->parents->size)
5246 filler = &fillers[RSHARP];
5247 if (graph->prev->size > graph->size)
5248 filler = &fillers[LDIAG];
5251 if (graph->prev->size > graph->size) {
5252 append_to_rev_graph(graph, filler->separator);
5253 if (filler->line != ' ')
5254 append_to_rev_graph(graph, filler->line);
5258 /* Prepare the next rev graph */
5260 prepare_rev_graph(struct rev_graph *graph)
5264 /* First, traverse all lines of revisions up to the active one. */
5265 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5266 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5269 push_rev_graph(graph->next, graph->rev[graph->pos]);
5272 /* Interleave the new revision parent(s). */
5273 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5274 push_rev_graph(graph->next, graph->parents->rev[i]);
5276 /* Lastly, put any remaining revisions. */
5277 for (i = graph->pos + 1; i < graph->size; i++)
5278 push_rev_graph(graph->next, graph->rev[i]);
5282 update_rev_graph(struct view *view, struct rev_graph *graph)
5284 /* If this is the finalizing update ... */
5286 prepare_rev_graph(graph);
5288 /* Graph visualization needs a one rev look-ahead,
5289 * so the first update doesn't visualize anything. */
5290 if (!graph->prev->commit)
5293 if (view->lines > 2)
5294 view->line[view->lines - 3].dirty = 1;
5295 if (view->lines > 1)
5296 view->line[view->lines - 2].dirty = 1;
5297 draw_rev_graph(graph->prev);
5298 done_rev_graph(graph->prev->prev);
5306 static const char *main_argv[SIZEOF_ARG] = {
5307 "git", "log", "--no-color", "--pretty=raw", "--parents",
5308 "--topo-order", "%(head)", NULL
5312 main_draw(struct view *view, struct line *line, unsigned int lineno)
5314 struct commit *commit = line->data;
5316 if (!*commit->author)
5319 if (opt_date && draw_date(view, &commit->time))
5323 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5326 if (opt_rev_graph && commit->graph_size &&
5327 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5330 if (opt_show_refs && commit->refs) {
5334 enum line_type type;
5336 if (commit->refs[i]->head)
5337 type = LINE_MAIN_HEAD;
5338 else if (commit->refs[i]->ltag)
5339 type = LINE_MAIN_LOCAL_TAG;
5340 else if (commit->refs[i]->tag)
5341 type = LINE_MAIN_TAG;
5342 else if (commit->refs[i]->tracked)
5343 type = LINE_MAIN_TRACKED;
5344 else if (commit->refs[i]->remote)
5345 type = LINE_MAIN_REMOTE;
5347 type = LINE_MAIN_REF;
5349 if (draw_text(view, type, "[", TRUE) ||
5350 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5351 draw_text(view, type, "]", TRUE))
5354 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5356 } while (commit->refs[i++]->next);
5359 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5363 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5365 main_read(struct view *view, char *line)
5367 static struct rev_graph *graph = graph_stacks;
5368 enum line_type type;
5369 struct commit *commit;
5374 if (!view->lines && !view->parent)
5375 die("No revisions match the given arguments.");
5376 if (view->lines > 0) {
5377 commit = view->line[view->lines - 1].data;
5378 if (!*commit->author) {
5381 graph->commit = NULL;
5384 update_rev_graph(view, graph);
5386 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5387 clear_rev_graph(&graph_stacks[i]);
5391 type = get_line_type(line);
5392 if (type == LINE_COMMIT) {
5393 commit = calloc(1, sizeof(struct commit));
5397 line += STRING_SIZE("commit ");
5399 graph->boundary = 1;
5403 string_copy_rev(commit->id, line);
5404 commit->refs = get_refs(commit->id);
5405 graph->commit = commit;
5406 add_line_data(view, commit, LINE_MAIN_COMMIT);
5408 while ((line = strchr(line, ' '))) {
5410 push_rev_graph(graph->parents, line);
5411 commit->has_parents = TRUE;
5418 commit = view->line[view->lines - 1].data;
5422 if (commit->has_parents)
5424 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5429 /* Parse author lines where the name may be empty:
5430 * author <email@address.tld> 1138474660 +0100
5432 char *ident = line + STRING_SIZE("author ");
5433 char *nameend = strchr(ident, '<');
5434 char *emailend = strchr(ident, '>');
5436 if (!nameend || !emailend)
5439 update_rev_graph(view, graph);
5440 graph = graph->next;
5442 *nameend = *emailend = 0;
5443 ident = chomp_string(ident);
5445 ident = chomp_string(nameend + 1);
5450 string_ncopy(commit->author, ident, strlen(ident));
5451 view->line[view->lines - 1].dirty = 1;
5453 /* Parse epoch and timezone */
5454 if (emailend[1] == ' ') {
5455 char *secs = emailend + 2;
5456 char *zone = strchr(secs, ' ');
5457 time_t time = (time_t) atol(secs);
5459 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5463 tz = ('0' - zone[1]) * 60 * 60 * 10;
5464 tz += ('0' - zone[2]) * 60 * 60;
5465 tz += ('0' - zone[3]) * 60;
5466 tz += ('0' - zone[4]) * 60;
5474 gmtime_r(&time, &commit->time);
5479 /* Fill in the commit title if it has not already been set. */
5480 if (commit->title[0])
5483 /* Require titles to start with a non-space character at the
5484 * offset used by git log. */
5485 if (strncmp(line, " ", 4))
5488 /* Well, if the title starts with a whitespace character,
5489 * try to be forgiving. Otherwise we end up with no title. */
5490 while (isspace(*line))
5494 /* FIXME: More graceful handling of titles; append "..." to
5495 * shortened titles, etc. */
5497 string_ncopy(commit->title, line, strlen(line));
5498 view->line[view->lines - 1].dirty = 1;
5505 main_request(struct view *view, enum request request, struct line *line)
5507 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5511 open_view(view, REQ_VIEW_DIFF, flags);
5515 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5525 grep_refs(struct ref **refs, regex_t *regex)
5533 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5535 } while (refs[i++]->next);
5541 main_grep(struct view *view, struct line *line)
5543 struct commit *commit = line->data;
5544 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5545 char buf[DATE_COLS + 1];
5548 for (state = S_TITLE; state < S_END; state++) {
5552 case S_TITLE: text = commit->title; break;
5556 text = commit->author;
5561 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5568 if (grep_refs(commit->refs, view->regex) == TRUE)
5575 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5583 main_select(struct view *view, struct line *line)
5585 struct commit *commit = line->data;
5587 string_copy_rev(view->ref, commit->id);
5588 string_copy_rev(ref_commit, view->ref);
5591 static struct view_ops main_ops = {
5604 * Unicode / UTF-8 handling
5606 * NOTE: Much of the following code for dealing with unicode is derived from
5607 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5608 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5611 /* I've (over)annotated a lot of code snippets because I am not entirely
5612 * confident that the approach taken by this small UTF-8 interface is correct.
5616 unicode_width(unsigned long c)
5619 (c <= 0x115f /* Hangul Jamo */
5622 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5624 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5625 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5626 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5627 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5628 || (c >= 0xffe0 && c <= 0xffe6)
5629 || (c >= 0x20000 && c <= 0x2fffd)
5630 || (c >= 0x30000 && c <= 0x3fffd)))
5634 return opt_tab_size;
5639 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5640 * Illegal bytes are set one. */
5641 static const unsigned char utf8_bytes[256] = {
5642 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,
5643 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,
5644 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,
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 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,
5649 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,
5652 /* Decode UTF-8 multi-byte representation into a unicode character. */
5653 static inline unsigned long
5654 utf8_to_unicode(const char *string, size_t length)
5656 unsigned long unicode;
5660 unicode = string[0];
5663 unicode = (string[0] & 0x1f) << 6;
5664 unicode += (string[1] & 0x3f);
5667 unicode = (string[0] & 0x0f) << 12;
5668 unicode += ((string[1] & 0x3f) << 6);
5669 unicode += (string[2] & 0x3f);
5672 unicode = (string[0] & 0x0f) << 18;
5673 unicode += ((string[1] & 0x3f) << 12);
5674 unicode += ((string[2] & 0x3f) << 6);
5675 unicode += (string[3] & 0x3f);
5678 unicode = (string[0] & 0x0f) << 24;
5679 unicode += ((string[1] & 0x3f) << 18);
5680 unicode += ((string[2] & 0x3f) << 12);
5681 unicode += ((string[3] & 0x3f) << 6);
5682 unicode += (string[4] & 0x3f);
5685 unicode = (string[0] & 0x01) << 30;
5686 unicode += ((string[1] & 0x3f) << 24);
5687 unicode += ((string[2] & 0x3f) << 18);
5688 unicode += ((string[3] & 0x3f) << 12);
5689 unicode += ((string[4] & 0x3f) << 6);
5690 unicode += (string[5] & 0x3f);
5693 die("Invalid unicode length");
5696 /* Invalid characters could return the special 0xfffd value but NUL
5697 * should be just as good. */
5698 return unicode > 0xffff ? 0 : unicode;
5701 /* Calculates how much of string can be shown within the given maximum width
5702 * and sets trimmed parameter to non-zero value if all of string could not be
5703 * shown. If the reserve flag is TRUE, it will reserve at least one
5704 * trailing character, which can be useful when drawing a delimiter.
5706 * Returns the number of bytes to output from string to satisfy max_width. */
5708 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5710 const char *start = string;
5711 const char *end = strchr(string, '\0');
5712 unsigned char last_bytes = 0;
5713 size_t last_ucwidth = 0;
5718 while (string < end) {
5719 int c = *(unsigned char *) string;
5720 unsigned char bytes = utf8_bytes[c];
5722 unsigned long unicode;
5724 if (string + bytes > end)
5727 /* Change representation to figure out whether
5728 * it is a single- or double-width character. */
5730 unicode = utf8_to_unicode(string, bytes);
5731 /* FIXME: Graceful handling of invalid unicode character. */
5735 ucwidth = unicode_width(unicode);
5737 if (*width > max_width) {
5740 if (reserve && *width == max_width) {
5741 string -= last_bytes;
5742 *width -= last_ucwidth;
5749 last_ucwidth = ucwidth;
5752 return string - start;
5760 /* Whether or not the curses interface has been initialized. */
5761 static bool cursed = FALSE;
5763 /* The status window is used for polling keystrokes. */
5764 static WINDOW *status_win;
5766 static bool status_empty = TRUE;
5768 /* Update status and title window. */
5770 report(const char *msg, ...)
5772 struct view *view = display[current_view];
5778 char buf[SIZEOF_STR];
5781 va_start(args, msg);
5782 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5783 buf[sizeof(buf) - 1] = 0;
5784 buf[sizeof(buf) - 2] = '.';
5785 buf[sizeof(buf) - 3] = '.';
5786 buf[sizeof(buf) - 4] = '.';
5792 if (!status_empty || *msg) {
5795 va_start(args, msg);
5797 wmove(status_win, 0, 0);
5799 vwprintw(status_win, msg, args);
5800 status_empty = FALSE;
5802 status_empty = TRUE;
5804 wclrtoeol(status_win);
5805 wrefresh(status_win);
5810 update_view_title(view);
5811 update_display_cursor(view);
5814 /* Controls when nodelay should be in effect when polling user input. */
5816 set_nonblocking_input(bool loading)
5818 static unsigned int loading_views;
5820 if ((loading == FALSE && loading_views-- == 1) ||
5821 (loading == TRUE && loading_views++ == 0))
5822 nodelay(status_win, loading);
5830 /* Initialize the curses library */
5831 if (isatty(STDIN_FILENO)) {
5832 cursed = !!initscr();
5835 /* Leave stdin and stdout alone when acting as a pager. */
5836 opt_tty = fopen("/dev/tty", "r+");
5838 die("Failed to open /dev/tty");
5839 cursed = !!newterm(NULL, opt_tty, opt_tty);
5843 die("Failed to initialize curses");
5845 nonl(); /* Tell curses not to do NL->CR/NL on output */
5846 cbreak(); /* Take input chars one at a time, no wait for \n */
5847 noecho(); /* Don't echo input */
5848 leaveok(stdscr, TRUE);
5853 getmaxyx(stdscr, y, x);
5854 status_win = newwin(1, 0, y - 1, 0);
5856 die("Failed to create status window");
5858 /* Enable keyboard mapping */
5859 keypad(status_win, TRUE);
5860 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5862 TABSIZE = opt_tab_size;
5863 if (opt_line_graphics) {
5864 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5869 prompt_yesno(const char *prompt)
5871 enum { WAIT, STOP, CANCEL } status = WAIT;
5872 bool answer = FALSE;
5874 while (status == WAIT) {
5880 foreach_view (view, i)
5885 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
5886 wclrtoeol(status_win);
5888 /* Refresh, accept single keystroke of input */
5889 key = wgetch(status_win);
5913 /* Clear the status window */
5914 status_empty = FALSE;
5921 read_prompt(const char *prompt)
5923 enum { READING, STOP, CANCEL } status = READING;
5924 static char buf[SIZEOF_STR];
5927 while (status == READING) {
5933 foreach_view (view, i)
5938 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5939 wclrtoeol(status_win);
5941 /* Refresh, accept single keystroke of input */
5942 key = wgetch(status_win);
5947 status = pos ? STOP : CANCEL;
5965 if (pos >= sizeof(buf)) {
5966 report("Input string too long");
5971 buf[pos++] = (char) key;
5975 /* Clear the status window */
5976 status_empty = FALSE;
5979 if (status == CANCEL)
5988 * Repository properties
5992 git_properties(const char **argv, const char *separators,
5993 int (*read_property)(char *, size_t, char *, size_t))
5997 if (init_io_rd(&io, argv, NULL, FORMAT_NONE))
5998 return read_properties(&io, separators, read_property);
6002 static struct ref *refs = NULL;
6003 static size_t refs_alloc = 0;
6004 static size_t refs_size = 0;
6006 /* Id <-> ref store */
6007 static struct ref ***id_refs = NULL;
6008 static size_t id_refs_alloc = 0;
6009 static size_t id_refs_size = 0;
6012 compare_refs(const void *ref1_, const void *ref2_)
6014 const struct ref *ref1 = *(const struct ref **)ref1_;
6015 const struct ref *ref2 = *(const struct ref **)ref2_;
6017 if (ref1->tag != ref2->tag)
6018 return ref2->tag - ref1->tag;
6019 if (ref1->ltag != ref2->ltag)
6020 return ref2->ltag - ref2->ltag;
6021 if (ref1->head != ref2->head)
6022 return ref2->head - ref1->head;
6023 if (ref1->tracked != ref2->tracked)
6024 return ref2->tracked - ref1->tracked;
6025 if (ref1->remote != ref2->remote)
6026 return ref2->remote - ref1->remote;
6027 return strcmp(ref1->name, ref2->name);
6030 static struct ref **
6031 get_refs(const char *id)
6033 struct ref ***tmp_id_refs;
6034 struct ref **ref_list = NULL;
6035 size_t ref_list_alloc = 0;
6036 size_t ref_list_size = 0;
6039 for (i = 0; i < id_refs_size; i++)
6040 if (!strcmp(id, id_refs[i][0]->id))
6043 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6048 id_refs = tmp_id_refs;
6050 for (i = 0; i < refs_size; i++) {
6053 if (strcmp(id, refs[i].id))
6056 tmp = realloc_items(ref_list, &ref_list_alloc,
6057 ref_list_size + 1, sizeof(*ref_list));
6065 ref_list[ref_list_size] = &refs[i];
6066 /* XXX: The properties of the commit chains ensures that we can
6067 * safely modify the shared ref. The repo references will
6068 * always be similar for the same id. */
6069 ref_list[ref_list_size]->next = 1;
6075 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6076 ref_list[ref_list_size - 1]->next = 0;
6077 id_refs[id_refs_size++] = ref_list;
6084 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6089 bool remote = FALSE;
6090 bool tracked = FALSE;
6091 bool check_replace = FALSE;
6094 if (!prefixcmp(name, "refs/tags/")) {
6095 if (!suffixcmp(name, namelen, "^{}")) {
6098 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6099 check_replace = TRUE;
6105 namelen -= STRING_SIZE("refs/tags/");
6106 name += STRING_SIZE("refs/tags/");
6108 } else if (!prefixcmp(name, "refs/remotes/")) {
6110 namelen -= STRING_SIZE("refs/remotes/");
6111 name += STRING_SIZE("refs/remotes/");
6112 tracked = !strcmp(opt_remote, name);
6114 } else if (!prefixcmp(name, "refs/heads/")) {
6115 namelen -= STRING_SIZE("refs/heads/");
6116 name += STRING_SIZE("refs/heads/");
6117 head = !strncmp(opt_head, name, namelen);
6119 } else if (!strcmp(name, "HEAD")) {
6120 string_ncopy(opt_head_rev, id, idlen);
6124 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6125 /* it's an annotated tag, replace the previous sha1 with the
6126 * resolved commit id; relies on the fact git-ls-remote lists
6127 * the commit id of an annotated tag right before the commit id
6129 refs[refs_size - 1].ltag = ltag;
6130 string_copy_rev(refs[refs_size - 1].id, id);
6134 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6138 ref = &refs[refs_size++];
6139 ref->name = malloc(namelen + 1);
6143 strncpy(ref->name, name, namelen);
6144 ref->name[namelen] = 0;
6148 ref->remote = remote;
6149 ref->tracked = tracked;
6150 string_copy_rev(ref->id, id);
6158 static const char *ls_remote_argv[SIZEOF_ARG] = {
6159 "git", "ls-remote", ".", NULL
6161 static bool init = FALSE;
6164 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6171 while (refs_size > 0)
6172 free(refs[--refs_size].name);
6173 while (id_refs_size > 0)
6174 free(id_refs[--id_refs_size]);
6176 return git_properties(ls_remote_argv, "\t", read_ref);
6180 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6182 if (!strcmp(name, "i18n.commitencoding"))
6183 string_ncopy(opt_encoding, value, valuelen);
6185 if (!strcmp(name, "core.editor"))
6186 string_ncopy(opt_editor, value, valuelen);
6188 /* branch.<head>.remote */
6190 !strncmp(name, "branch.", 7) &&
6191 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6192 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6193 string_ncopy(opt_remote, value, valuelen);
6195 if (*opt_head && *opt_remote &&
6196 !strncmp(name, "branch.", 7) &&
6197 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6198 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6199 size_t from = strlen(opt_remote);
6201 if (!prefixcmp(value, "refs/heads/")) {
6202 value += STRING_SIZE("refs/heads/");
6203 valuelen -= STRING_SIZE("refs/heads/");
6206 if (!string_format_from(opt_remote, &from, "/%s", value))
6214 load_git_config(void)
6216 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6218 return git_properties(config_list_argv, "=", read_repo_config_option);
6222 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6224 if (!opt_git_dir[0]) {
6225 string_ncopy(opt_git_dir, name, namelen);
6227 } else if (opt_is_inside_work_tree == -1) {
6228 /* This can be 3 different values depending on the
6229 * version of git being used. If git-rev-parse does not
6230 * understand --is-inside-work-tree it will simply echo
6231 * the option else either "true" or "false" is printed.
6232 * Default to true for the unknown case. */
6233 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6235 string_ncopy(opt_cdup, name, namelen);
6242 load_repo_info(void)
6244 const char *head_argv[] = {
6245 "git", "symbolic-ref", "HEAD", NULL
6247 const char *rev_parse_argv[] = {
6248 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6252 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6253 chomp_string(opt_head);
6254 if (!prefixcmp(opt_head, "refs/heads/")) {
6255 char *offset = opt_head + STRING_SIZE("refs/heads/");
6257 memmove(opt_head, offset, strlen(offset) + 1);
6261 return git_properties(rev_parse_argv, "=", read_repo_info);
6265 read_properties(struct io *io, const char *separators,
6266 int (*read_property)(char *, size_t, char *, size_t))
6274 while (state == OK && (name = io_get(io, '\n', TRUE))) {
6279 name = chomp_string(name);
6280 namelen = strcspn(name, separators);
6282 if (name[namelen]) {
6284 value = chomp_string(name + namelen + 1);
6285 valuelen = strlen(value);
6292 state = read_property(name, namelen, value, valuelen);
6295 if (state != ERR && io_error(io))
6307 static void __NORETURN
6310 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6316 static void __NORETURN
6317 die(const char *err, ...)
6323 va_start(args, err);
6324 fputs("tig: ", stderr);
6325 vfprintf(stderr, err, args);
6326 fputs("\n", stderr);
6333 warn(const char *msg, ...)
6337 va_start(args, msg);
6338 fputs("tig warning: ", stderr);
6339 vfprintf(stderr, msg, args);
6340 fputs("\n", stderr);
6345 main(int argc, const char *argv[])
6347 const char **run_argv = NULL;
6349 enum request request;
6352 signal(SIGINT, quit);
6354 if (setlocale(LC_ALL, "")) {
6355 char *codeset = nl_langinfo(CODESET);
6357 string_ncopy(opt_codeset, codeset, strlen(codeset));
6360 if (load_repo_info() == ERR)
6361 die("Failed to load repo info.");
6363 if (load_options() == ERR)
6364 die("Failed to load user config.");
6366 if (load_git_config() == ERR)
6367 die("Failed to load repo config.");
6369 request = parse_options(argc, argv, &run_argv);
6370 if (request == REQ_NONE)
6373 /* Require a git repository unless when running in pager mode. */
6374 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6375 die("Not a git repository");
6377 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6380 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6381 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6382 if (opt_iconv == ICONV_NONE)
6383 die("Failed to initialize character set conversion");
6386 if (load_refs() == ERR)
6387 die("Failed to load refs.");
6389 foreach_view (view, i)
6390 argv_from_env(view->ops->argv, view->cmd_env);
6394 if (request == REQ_VIEW_PAGER || run_argv) {
6395 if (request == REQ_VIEW_PAGER)
6396 io_open(&VIEW(request)->io, "");
6397 else if (!prepare_update(VIEW(request), run_argv, NULL, FORMAT_NONE))
6398 die("Failed to format arguments");
6399 open_view(NULL, request, OPEN_PREPARED);
6403 while (view_driver(display[current_view], request)) {
6407 foreach_view (view, i)
6409 view = display[current_view];
6411 /* Refresh, accept single keystroke of input */
6412 key = wgetch(status_win);
6414 /* wgetch() with nodelay() enabled returns ERR when there's no
6421 request = get_keybinding(view->keymap, key);
6423 /* Some low-level request handling. This keeps access to
6424 * status_win restricted. */
6428 char *cmd = read_prompt(":");
6431 struct view *next = VIEW(REQ_VIEW_PAGER);
6432 const char *argv[SIZEOF_ARG] = { "git" };
6435 /* When running random commands, initially show the
6436 * command in the title. However, it maybe later be
6437 * overwritten if a commit line is selected. */
6438 string_ncopy(next->ref, cmd, strlen(cmd));
6440 if (!argv_from_string(argv, &argc, cmd)) {
6441 report("Too many arguments");
6442 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6443 report("Failed to format command");
6445 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6453 case REQ_SEARCH_BACK:
6455 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6456 char *search = read_prompt(prompt);
6459 string_ncopy(opt_search, search, strlen(search));
6464 case REQ_SCREEN_RESIZE:
6468 getmaxyx(stdscr, height, width);
6470 /* Resize the status view and let the view driver take
6471 * care of resizing the displayed views. */
6472 wresize(status_win, 1, width);
6473 mvwin(status_win, height - 1, 0);
6474 wrefresh(status_win);