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 static const char *custom_argv[SIZEOF_ARG] = {
801 "git", "log", "--no-color", "--pretty=raw", "--parents",
806 if (!isatty(STDIN_FILENO))
807 return REQ_VIEW_PAGER;
810 return REQ_VIEW_MAIN;
812 subcommand = argv[1];
813 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
814 if (!strcmp(subcommand, "-S"))
815 warn("`-S' has been deprecated; use `tig status' instead");
817 warn("ignoring arguments after `%s'", subcommand);
818 return REQ_VIEW_STATUS;
820 } else if (!strcmp(subcommand, "blame")) {
821 if (argc <= 2 || argc > 4)
822 die("invalid number of options to blame\n\n%s", usage);
826 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
830 string_ncopy(opt_file, argv[i], strlen(argv[i]));
831 return REQ_VIEW_BLAME;
833 } else if (!strcmp(subcommand, "show")) {
834 request = REQ_VIEW_DIFF;
836 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
837 request = subcommand[0] == 'l' ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
838 warn("`tig %s' has been deprecated", subcommand);
845 custom_argv[1] = subcommand;
849 for (i = 1 + !!subcommand; i < argc; i++) {
850 const char *opt = argv[i];
852 if (seen_dashdash || !strcmp(opt, "--")) {
853 seen_dashdash = TRUE;
855 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
856 printf("tig version %s\n", TIG_VERSION);
859 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
860 printf("%s\n", usage);
864 custom_argv[j++] = opt;
865 if (j >= ARRAY_SIZE(custom_argv))
866 die("command too long");
869 custom_argv[j] = NULL;
870 *run_argv = custom_argv;
877 * Line-oriented content detection.
881 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
882 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
883 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
884 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
885 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
886 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
887 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
888 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
889 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
890 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
891 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
892 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
893 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
894 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
895 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
896 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
897 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
898 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
899 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
900 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
901 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
902 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
903 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
904 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
905 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
906 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
907 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
908 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
909 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
910 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
911 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
912 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
913 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
914 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
915 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
916 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
917 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
918 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
919 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
920 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
921 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
922 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
923 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
924 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
925 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
926 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
927 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
928 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
929 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
930 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
931 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
932 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
933 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
934 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
937 #define LINE(type, line, fg, bg, attr) \
945 const char *name; /* Option name. */
946 int namelen; /* Size of option name. */
947 const char *line; /* The start of line to match. */
948 int linelen; /* Size of string to match. */
949 int fg, bg, attr; /* Color and text attributes for the lines. */
952 static struct line_info line_info[] = {
953 #define LINE(type, line, fg, bg, attr) \
954 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
959 static enum line_type
960 get_line_type(const char *line)
962 int linelen = strlen(line);
965 for (type = 0; type < ARRAY_SIZE(line_info); type++)
966 /* Case insensitive search matches Signed-off-by lines better. */
967 if (linelen >= line_info[type].linelen &&
968 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
975 get_line_attr(enum line_type type)
977 assert(type < ARRAY_SIZE(line_info));
978 return COLOR_PAIR(type) | line_info[type].attr;
981 static struct line_info *
982 get_line_info(const char *name)
984 size_t namelen = strlen(name);
987 for (type = 0; type < ARRAY_SIZE(line_info); type++)
988 if (namelen == line_info[type].namelen &&
989 !string_enum_compare(line_info[type].name, name, namelen))
990 return &line_info[type];
998 int default_bg = line_info[LINE_DEFAULT].bg;
999 int default_fg = line_info[LINE_DEFAULT].fg;
1000 enum line_type type;
1004 if (assume_default_colors(default_fg, default_bg) == ERR) {
1005 default_bg = COLOR_BLACK;
1006 default_fg = COLOR_WHITE;
1009 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
1010 struct line_info *info = &line_info[type];
1011 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
1012 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
1014 init_pair(type, fg, bg);
1019 enum line_type type;
1022 unsigned int selected:1;
1023 unsigned int dirty:1;
1024 unsigned int cleareol:1;
1026 void *data; /* User data */
1036 enum request request;
1039 static struct keybinding default_keybindings[] = {
1040 /* View switching */
1041 { 'm', REQ_VIEW_MAIN },
1042 { 'd', REQ_VIEW_DIFF },
1043 { 'l', REQ_VIEW_LOG },
1044 { 't', REQ_VIEW_TREE },
1045 { 'f', REQ_VIEW_BLOB },
1046 { 'B', REQ_VIEW_BLAME },
1047 { 'p', REQ_VIEW_PAGER },
1048 { 'h', REQ_VIEW_HELP },
1049 { 'S', REQ_VIEW_STATUS },
1050 { 'c', REQ_VIEW_STAGE },
1052 /* View manipulation */
1053 { 'q', REQ_VIEW_CLOSE },
1054 { KEY_TAB, REQ_VIEW_NEXT },
1055 { KEY_RETURN, REQ_ENTER },
1056 { KEY_UP, REQ_PREVIOUS },
1057 { KEY_DOWN, REQ_NEXT },
1058 { 'R', REQ_REFRESH },
1059 { KEY_F(5), REQ_REFRESH },
1060 { 'O', REQ_MAXIMIZE },
1062 /* Cursor navigation */
1063 { 'k', REQ_MOVE_UP },
1064 { 'j', REQ_MOVE_DOWN },
1065 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1066 { KEY_END, REQ_MOVE_LAST_LINE },
1067 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1068 { ' ', REQ_MOVE_PAGE_DOWN },
1069 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1070 { 'b', REQ_MOVE_PAGE_UP },
1071 { '-', REQ_MOVE_PAGE_UP },
1074 { KEY_IC, REQ_SCROLL_LINE_UP },
1075 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1076 { 'w', REQ_SCROLL_PAGE_UP },
1077 { 's', REQ_SCROLL_PAGE_DOWN },
1080 { '/', REQ_SEARCH },
1081 { '?', REQ_SEARCH_BACK },
1082 { 'n', REQ_FIND_NEXT },
1083 { 'N', REQ_FIND_PREV },
1087 { 'z', REQ_STOP_LOADING },
1088 { 'v', REQ_SHOW_VERSION },
1089 { 'r', REQ_SCREEN_REDRAW },
1090 { '.', REQ_TOGGLE_LINENO },
1091 { 'D', REQ_TOGGLE_DATE },
1092 { 'A', REQ_TOGGLE_AUTHOR },
1093 { 'g', REQ_TOGGLE_REV_GRAPH },
1094 { 'F', REQ_TOGGLE_REFS },
1095 { ':', REQ_PROMPT },
1096 { 'u', REQ_STATUS_UPDATE },
1097 { '!', REQ_STATUS_REVERT },
1098 { 'M', REQ_STATUS_MERGE },
1099 { '@', REQ_STAGE_NEXT },
1100 { ',', REQ_TREE_PARENT },
1103 /* Using the ncurses SIGWINCH handler. */
1104 { KEY_RESIZE, REQ_SCREEN_RESIZE },
1107 #define KEYMAP_INFO \
1121 #define KEYMAP_(name) KEYMAP_##name
1126 static struct int_map keymap_table[] = {
1127 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
1132 #define set_keymap(map, name) \
1133 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
1135 struct keybinding_table {
1136 struct keybinding *data;
1140 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1143 add_keybinding(enum keymap keymap, enum request request, int key)
1145 struct keybinding_table *table = &keybindings[keymap];
1147 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1149 die("Failed to allocate keybinding");
1150 table->data[table->size].alias = key;
1151 table->data[table->size++].request = request;
1154 /* Looks for a key binding first in the given map, then in the generic map, and
1155 * lastly in the default keybindings. */
1157 get_keybinding(enum keymap keymap, int key)
1161 for (i = 0; i < keybindings[keymap].size; i++)
1162 if (keybindings[keymap].data[i].alias == key)
1163 return keybindings[keymap].data[i].request;
1165 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1166 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1167 return keybindings[KEYMAP_GENERIC].data[i].request;
1169 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1170 if (default_keybindings[i].alias == key)
1171 return default_keybindings[i].request;
1173 return (enum request) key;
1182 static struct key key_table[] = {
1183 { "Enter", KEY_RETURN },
1185 { "Backspace", KEY_BACKSPACE },
1187 { "Escape", KEY_ESC },
1188 { "Left", KEY_LEFT },
1189 { "Right", KEY_RIGHT },
1191 { "Down", KEY_DOWN },
1192 { "Insert", KEY_IC },
1193 { "Delete", KEY_DC },
1195 { "Home", KEY_HOME },
1197 { "PageUp", KEY_PPAGE },
1198 { "PageDown", KEY_NPAGE },
1208 { "F10", KEY_F(10) },
1209 { "F11", KEY_F(11) },
1210 { "F12", KEY_F(12) },
1214 get_key_value(const char *name)
1218 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1219 if (!strcasecmp(key_table[i].name, name))
1220 return key_table[i].value;
1222 if (strlen(name) == 1 && isprint(*name))
1229 get_key_name(int key_value)
1231 static char key_char[] = "'X'";
1232 const char *seq = NULL;
1235 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1236 if (key_table[key].value == key_value)
1237 seq = key_table[key].name;
1241 isprint(key_value)) {
1242 key_char[1] = (char) key_value;
1246 return seq ? seq : "(no key)";
1250 get_key(enum request request)
1252 static char buf[BUFSIZ];
1259 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1260 struct keybinding *keybinding = &default_keybindings[i];
1262 if (keybinding->request != request)
1265 if (!string_format_from(buf, &pos, "%s%s", sep,
1266 get_key_name(keybinding->alias)))
1267 return "Too many keybindings!";
1274 struct run_request {
1277 const char *argv[SIZEOF_ARG];
1280 static struct run_request *run_request;
1281 static size_t run_requests;
1284 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1286 struct run_request *req;
1288 if (argc >= ARRAY_SIZE(req->argv) - 1)
1291 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1296 req = &run_request[run_requests];
1297 req->keymap = keymap;
1299 req->argv[0] = NULL;
1301 if (!format_argv(req->argv, argv, FORMAT_NONE))
1304 return REQ_NONE + ++run_requests;
1307 static struct run_request *
1308 get_run_request(enum request request)
1310 if (request <= REQ_NONE)
1312 return &run_request[request - REQ_NONE - 1];
1316 add_builtin_run_requests(void)
1318 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1319 const char *gc[] = { "git", "gc", NULL };
1326 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1327 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1331 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1334 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1335 if (req != REQ_NONE)
1336 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1341 * User config file handling.
1344 static struct int_map color_map[] = {
1345 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1357 #define set_color(color, name) \
1358 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1360 static struct int_map attr_map[] = {
1361 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1368 ATTR_MAP(UNDERLINE),
1371 #define set_attribute(attr, name) \
1372 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1374 static int config_lineno;
1375 static bool config_errors;
1376 static const char *config_msg;
1378 /* Wants: object fgcolor bgcolor [attr] */
1380 option_color_command(int argc, const char *argv[])
1382 struct line_info *info;
1384 if (argc != 3 && argc != 4) {
1385 config_msg = "Wrong number of arguments given to color command";
1389 info = get_line_info(argv[0]);
1391 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1392 info = get_line_info("delimiter");
1394 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1395 info = get_line_info("date");
1398 config_msg = "Unknown color name";
1403 if (set_color(&info->fg, argv[1]) == ERR ||
1404 set_color(&info->bg, argv[2]) == ERR) {
1405 config_msg = "Unknown color";
1409 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1410 config_msg = "Unknown attribute";
1417 static bool parse_bool(const char *s)
1419 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1420 !strcmp(s, "yes")) ? TRUE : FALSE;
1424 parse_int(const char *s, int default_value, int min, int max)
1426 int value = atoi(s);
1428 return (value < min || value > max) ? default_value : value;
1431 /* Wants: name = value */
1433 option_set_command(int argc, const char *argv[])
1436 config_msg = "Wrong number of arguments given to set command";
1440 if (strcmp(argv[1], "=")) {
1441 config_msg = "No value assigned";
1445 if (!strcmp(argv[0], "show-author")) {
1446 opt_author = parse_bool(argv[2]);
1450 if (!strcmp(argv[0], "show-date")) {
1451 opt_date = parse_bool(argv[2]);
1455 if (!strcmp(argv[0], "show-rev-graph")) {
1456 opt_rev_graph = parse_bool(argv[2]);
1460 if (!strcmp(argv[0], "show-refs")) {
1461 opt_show_refs = parse_bool(argv[2]);
1465 if (!strcmp(argv[0], "show-line-numbers")) {
1466 opt_line_number = parse_bool(argv[2]);
1470 if (!strcmp(argv[0], "line-graphics")) {
1471 opt_line_graphics = parse_bool(argv[2]);
1475 if (!strcmp(argv[0], "line-number-interval")) {
1476 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1480 if (!strcmp(argv[0], "author-width")) {
1481 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1485 if (!strcmp(argv[0], "tab-size")) {
1486 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1490 if (!strcmp(argv[0], "commit-encoding")) {
1491 const char *arg = argv[2];
1492 int arglen = strlen(arg);
1497 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1498 config_msg = "Unmatched quotation";
1501 arg += 1; arglen -= 2;
1503 string_ncopy(opt_encoding, arg, strlen(arg));
1508 config_msg = "Unknown variable name";
1512 /* Wants: mode request key */
1514 option_bind_command(int argc, const char *argv[])
1516 enum request request;
1521 config_msg = "Wrong number of arguments given to bind command";
1525 if (set_keymap(&keymap, argv[0]) == ERR) {
1526 config_msg = "Unknown key map";
1530 key = get_key_value(argv[1]);
1532 config_msg = "Unknown key";
1536 request = get_request(argv[2]);
1537 if (request == REQ_NONE) {
1538 const char *obsolete[] = { "cherry-pick" };
1539 size_t namelen = strlen(argv[2]);
1542 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1543 if (namelen == strlen(obsolete[i]) &&
1544 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1545 config_msg = "Obsolete request name";
1550 if (request == REQ_NONE && *argv[2]++ == '!')
1551 request = add_run_request(keymap, key, argc - 2, argv + 2);
1552 if (request == REQ_NONE) {
1553 config_msg = "Unknown request name";
1557 add_keybinding(keymap, request, key);
1563 set_option(const char *opt, char *value)
1565 const char *argv[SIZEOF_ARG];
1568 if (!argv_from_string(argv, &argc, value)) {
1569 config_msg = "Too many option arguments";
1573 if (!strcmp(opt, "color"))
1574 return option_color_command(argc, argv);
1576 if (!strcmp(opt, "set"))
1577 return option_set_command(argc, argv);
1579 if (!strcmp(opt, "bind"))
1580 return option_bind_command(argc, argv);
1582 config_msg = "Unknown option command";
1587 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1592 config_msg = "Internal error";
1594 /* Check for comment markers, since read_properties() will
1595 * only ensure opt and value are split at first " \t". */
1596 optlen = strcspn(opt, "#");
1600 if (opt[optlen] != 0) {
1601 config_msg = "No option value";
1605 /* Look for comment endings in the value. */
1606 size_t len = strcspn(value, "#");
1608 if (len < valuelen) {
1610 value[valuelen] = 0;
1613 status = set_option(opt, value);
1616 if (status == ERR) {
1617 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1618 config_lineno, (int) optlen, opt, config_msg);
1619 config_errors = TRUE;
1622 /* Always keep going if errors are encountered. */
1627 load_option_file(const char *path)
1631 /* It's ok that the file doesn't exist. */
1632 if (!io_open(&io, path))
1636 config_errors = FALSE;
1638 if (read_properties(&io, " \t", read_option) == ERR ||
1639 config_errors == TRUE)
1640 fprintf(stderr, "Errors while loading %s.\n", path);
1646 const char *home = getenv("HOME");
1647 const char *tigrc_user = getenv("TIGRC_USER");
1648 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1649 char buf[SIZEOF_STR];
1651 add_builtin_run_requests();
1653 if (!tigrc_system) {
1654 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1658 load_option_file(tigrc_system);
1661 if (!home || !string_format(buf, "%s/.tigrc", home))
1665 load_option_file(tigrc_user);
1678 /* The display array of active views and the index of the current view. */
1679 static struct view *display[2];
1680 static unsigned int current_view;
1682 /* Reading from the prompt? */
1683 static bool input_mode = FALSE;
1685 #define foreach_displayed_view(view, i) \
1686 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1688 #define displayed_views() (display[1] != NULL ? 2 : 1)
1690 /* Current head and commit ID */
1691 static char ref_blob[SIZEOF_REF] = "";
1692 static char ref_commit[SIZEOF_REF] = "HEAD";
1693 static char ref_head[SIZEOF_REF] = "HEAD";
1696 const char *name; /* View name */
1697 const char *cmd_env; /* Command line set via environment */
1698 const char *id; /* Points to either of ref_{head,commit,blob} */
1700 struct view_ops *ops; /* View operations */
1702 enum keymap keymap; /* What keymap does this view have */
1703 bool git_dir; /* Whether the view requires a git directory. */
1705 char ref[SIZEOF_REF]; /* Hovered commit reference */
1706 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1708 int height, width; /* The width and height of the main window */
1709 WINDOW *win; /* The main window */
1710 WINDOW *title; /* The title window living below the main window */
1713 unsigned long offset; /* Offset of the window top */
1714 unsigned long lineno; /* Current line number */
1717 char grep[SIZEOF_STR]; /* Search string */
1718 regex_t *regex; /* Pre-compiled regex */
1720 /* If non-NULL, points to the view that opened this view. If this view
1721 * is closed tig will switch back to the parent view. */
1722 struct view *parent;
1725 size_t lines; /* Total number of lines */
1726 struct line *line; /* Line index */
1727 size_t line_alloc; /* Total number of allocated lines */
1728 unsigned int digits; /* Number of digits in the lines member. */
1731 struct line *curline; /* Line currently being drawn. */
1732 enum line_type curtype; /* Attribute currently used for drawing. */
1733 unsigned long col; /* Column when drawing. */
1743 /* What type of content being displayed. Used in the title bar. */
1745 /* Default command arguments. */
1747 /* Open and reads in all view content. */
1748 bool (*open)(struct view *view);
1749 /* Read one line; updates view->line. */
1750 bool (*read)(struct view *view, char *data);
1751 /* Draw one line; @lineno must be < view->height. */
1752 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1753 /* Depending on view handle a special requests. */
1754 enum request (*request)(struct view *view, enum request request, struct line *line);
1755 /* Search for regex in a line. */
1756 bool (*grep)(struct view *view, struct line *line);
1758 void (*select)(struct view *view, struct line *line);
1761 static struct view_ops blame_ops;
1762 static struct view_ops blob_ops;
1763 static struct view_ops diff_ops;
1764 static struct view_ops help_ops;
1765 static struct view_ops log_ops;
1766 static struct view_ops main_ops;
1767 static struct view_ops pager_ops;
1768 static struct view_ops stage_ops;
1769 static struct view_ops status_ops;
1770 static struct view_ops tree_ops;
1772 #define VIEW_STR(name, env, ref, ops, map, git) \
1773 { name, #env, ref, ops, map, git }
1775 #define VIEW_(id, name, ops, git, ref) \
1776 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1779 static struct view views[] = {
1780 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1781 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1782 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1783 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1784 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1785 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1786 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1787 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1788 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1789 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1792 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1793 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1795 #define foreach_view(view, i) \
1796 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1798 #define view_is_displayed(view) \
1799 (view == display[0] || view == display[1])
1806 static int line_graphics[] = {
1807 /* LINE_GRAPHIC_VLINE: */ '|'
1811 set_view_attr(struct view *view, enum line_type type)
1813 if (!view->curline->selected && view->curtype != type) {
1814 wattrset(view->win, get_line_attr(type));
1815 wchgat(view->win, -1, 0, type, NULL);
1816 view->curtype = type;
1821 draw_chars(struct view *view, enum line_type type, const char *string,
1822 int max_len, bool use_tilde)
1826 int trimmed = FALSE;
1832 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1834 col = len = strlen(string);
1835 if (len > max_len) {
1839 col = len = max_len;
1844 set_view_attr(view, type);
1845 waddnstr(view->win, string, len);
1846 if (trimmed && use_tilde) {
1847 set_view_attr(view, LINE_DELIMITER);
1848 waddch(view->win, '~');
1856 draw_space(struct view *view, enum line_type type, int max, int spaces)
1858 static char space[] = " ";
1861 spaces = MIN(max, spaces);
1863 while (spaces > 0) {
1864 int len = MIN(spaces, sizeof(space) - 1);
1866 col += draw_chars(view, type, space, spaces, FALSE);
1874 draw_lineno(struct view *view, unsigned int lineno)
1877 int digits3 = view->digits < 3 ? 3 : view->digits;
1878 int max_number = MIN(digits3, STRING_SIZE(number));
1879 int max = view->width - view->col;
1882 if (max < max_number)
1885 lineno += view->offset + 1;
1886 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1887 static char fmt[] = "%1ld";
1889 if (view->digits <= 9)
1890 fmt[1] = '0' + digits3;
1892 if (!string_format(number, fmt, lineno))
1894 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1896 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1900 set_view_attr(view, LINE_DEFAULT);
1901 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1906 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1909 return view->width - view->col <= 0;
1913 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1915 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1916 return view->width - view->col <= 0;
1920 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1922 int max = view->width - view->col;
1928 set_view_attr(view, type);
1929 /* Using waddch() instead of waddnstr() ensures that
1930 * they'll be rendered correctly for the cursor line. */
1931 for (i = 0; i < size; i++)
1932 waddch(view->win, graphic[i]);
1936 waddch(view->win, ' ');
1940 return view->width - view->col <= 0;
1944 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1946 int max = MIN(view->width - view->col, len);
1950 col = draw_chars(view, type, text, max - 1, trim);
1952 col = draw_space(view, type, max - 1, max - 1);
1954 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1955 return view->width - view->col <= 0;
1959 draw_date(struct view *view, struct tm *time)
1961 char buf[DATE_COLS];
1966 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1967 date = timelen ? buf : NULL;
1969 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1973 draw_view_line(struct view *view, unsigned int lineno)
1976 bool selected = (view->offset + lineno == view->lineno);
1979 assert(view_is_displayed(view));
1981 if (view->offset + lineno >= view->lines)
1984 line = &view->line[view->offset + lineno];
1986 wmove(view->win, lineno, 0);
1988 wclrtoeol(view->win);
1990 view->curline = line;
1991 view->curtype = LINE_NONE;
1992 line->selected = FALSE;
1993 line->dirty = line->cleareol = 0;
1996 set_view_attr(view, LINE_CURSOR);
1997 line->selected = TRUE;
1998 view->ops->select(view, line);
2001 scrollok(view->win, FALSE);
2002 draw_ok = view->ops->draw(view, line, lineno);
2003 scrollok(view->win, TRUE);
2009 redraw_view_dirty(struct view *view)
2014 for (lineno = 0; lineno < view->height; lineno++) {
2015 if (view->offset + lineno >= view->lines)
2017 if (!view->line[view->offset + lineno].dirty)
2020 if (!draw_view_line(view, lineno))
2026 redrawwin(view->win);
2028 wnoutrefresh(view->win);
2030 wrefresh(view->win);
2034 redraw_view_from(struct view *view, int lineno)
2036 assert(0 <= lineno && lineno < view->height);
2038 for (; lineno < view->height; lineno++) {
2039 if (!draw_view_line(view, lineno))
2043 redrawwin(view->win);
2045 wnoutrefresh(view->win);
2047 wrefresh(view->win);
2051 redraw_view(struct view *view)
2054 redraw_view_from(view, 0);
2059 update_view_title(struct view *view)
2061 char buf[SIZEOF_STR];
2062 char state[SIZEOF_STR];
2063 size_t bufpos = 0, statelen = 0;
2065 assert(view_is_displayed(view));
2067 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2068 unsigned int view_lines = view->offset + view->height;
2069 unsigned int lines = view->lines
2070 ? MIN(view_lines, view->lines) * 100 / view->lines
2073 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2082 time_t secs = time(NULL) - view->start_time;
2084 /* Three git seconds are a long time ... */
2086 string_format_from(state, &statelen, " loading %lds", secs);
2089 string_format_from(buf, &bufpos, "[%s]", view->name);
2090 if (*view->ref && bufpos < view->width) {
2091 size_t refsize = strlen(view->ref);
2092 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2094 if (minsize < view->width)
2095 refsize = view->width - minsize + 7;
2096 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2099 if (statelen && bufpos < view->width) {
2100 string_format_from(buf, &bufpos, "%s", state);
2103 if (view == display[current_view])
2104 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2106 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2108 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2109 wclrtoeol(view->title);
2110 wmove(view->title, 0, view->width - 1);
2113 wnoutrefresh(view->title);
2115 wrefresh(view->title);
2119 resize_display(void)
2122 struct view *base = display[0];
2123 struct view *view = display[1] ? display[1] : display[0];
2125 /* Setup window dimensions */
2127 getmaxyx(stdscr, base->height, base->width);
2129 /* Make room for the status window. */
2133 /* Horizontal split. */
2134 view->width = base->width;
2135 view->height = SCALE_SPLIT_VIEW(base->height);
2136 base->height -= view->height;
2138 /* Make room for the title bar. */
2142 /* Make room for the title bar. */
2147 foreach_displayed_view (view, i) {
2149 view->win = newwin(view->height, 0, offset, 0);
2151 die("Failed to create %s view", view->name);
2153 scrollok(view->win, TRUE);
2155 view->title = newwin(1, 0, offset + view->height, 0);
2157 die("Failed to create title window");
2160 wresize(view->win, view->height, view->width);
2161 mvwin(view->win, offset, 0);
2162 mvwin(view->title, offset + view->height, 0);
2165 offset += view->height + 1;
2170 redraw_display(void)
2175 foreach_displayed_view (view, i) {
2177 update_view_title(view);
2182 update_display_cursor(struct view *view)
2184 /* Move the cursor to the right-most column of the cursor line.
2186 * XXX: This could turn out to be a bit expensive, but it ensures that
2187 * the cursor does not jump around. */
2189 wmove(view->win, view->lineno - view->offset, view->width - 1);
2190 wrefresh(view->win);
2198 /* Scrolling backend */
2200 do_scroll_view(struct view *view, int lines)
2202 bool redraw_current_line = FALSE;
2204 /* The rendering expects the new offset. */
2205 view->offset += lines;
2207 assert(0 <= view->offset && view->offset < view->lines);
2210 /* Move current line into the view. */
2211 if (view->lineno < view->offset) {
2212 view->lineno = view->offset;
2213 redraw_current_line = TRUE;
2214 } else if (view->lineno >= view->offset + view->height) {
2215 view->lineno = view->offset + view->height - 1;
2216 redraw_current_line = TRUE;
2219 assert(view->offset <= view->lineno && view->lineno < view->lines);
2221 /* Redraw the whole screen if scrolling is pointless. */
2222 if (view->height < ABS(lines)) {
2226 int line = lines > 0 ? view->height - lines : 0;
2227 int end = line + ABS(lines);
2229 wscrl(view->win, lines);
2231 for (; line < end; line++) {
2232 if (!draw_view_line(view, line))
2236 if (redraw_current_line)
2237 draw_view_line(view, view->lineno - view->offset);
2240 redrawwin(view->win);
2241 wrefresh(view->win);
2245 /* Scroll frontend */
2247 scroll_view(struct view *view, enum request request)
2251 assert(view_is_displayed(view));
2254 case REQ_SCROLL_PAGE_DOWN:
2255 lines = view->height;
2256 case REQ_SCROLL_LINE_DOWN:
2257 if (view->offset + lines > view->lines)
2258 lines = view->lines - view->offset;
2260 if (lines == 0 || view->offset + view->height >= view->lines) {
2261 report("Cannot scroll beyond the last line");
2266 case REQ_SCROLL_PAGE_UP:
2267 lines = view->height;
2268 case REQ_SCROLL_LINE_UP:
2269 if (lines > view->offset)
2270 lines = view->offset;
2273 report("Cannot scroll beyond the first line");
2281 die("request %d not handled in switch", request);
2284 do_scroll_view(view, lines);
2289 move_view(struct view *view, enum request request)
2291 int scroll_steps = 0;
2295 case REQ_MOVE_FIRST_LINE:
2296 steps = -view->lineno;
2299 case REQ_MOVE_LAST_LINE:
2300 steps = view->lines - view->lineno - 1;
2303 case REQ_MOVE_PAGE_UP:
2304 steps = view->height > view->lineno
2305 ? -view->lineno : -view->height;
2308 case REQ_MOVE_PAGE_DOWN:
2309 steps = view->lineno + view->height >= view->lines
2310 ? view->lines - view->lineno - 1 : view->height;
2322 die("request %d not handled in switch", request);
2325 if (steps <= 0 && view->lineno == 0) {
2326 report("Cannot move beyond the first line");
2329 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2330 report("Cannot move beyond the last line");
2334 /* Move the current line */
2335 view->lineno += steps;
2336 assert(0 <= view->lineno && view->lineno < view->lines);
2338 /* Check whether the view needs to be scrolled */
2339 if (view->lineno < view->offset ||
2340 view->lineno >= view->offset + view->height) {
2341 scroll_steps = steps;
2342 if (steps < 0 && -steps > view->offset) {
2343 scroll_steps = -view->offset;
2345 } else if (steps > 0) {
2346 if (view->lineno == view->lines - 1 &&
2347 view->lines > view->height) {
2348 scroll_steps = view->lines - view->offset - 1;
2349 if (scroll_steps >= view->height)
2350 scroll_steps -= view->height - 1;
2355 if (!view_is_displayed(view)) {
2356 view->offset += scroll_steps;
2357 assert(0 <= view->offset && view->offset < view->lines);
2358 view->ops->select(view, &view->line[view->lineno]);
2362 /* Repaint the old "current" line if we be scrolling */
2363 if (ABS(steps) < view->height)
2364 draw_view_line(view, view->lineno - steps - view->offset);
2367 do_scroll_view(view, scroll_steps);
2371 /* Draw the current line */
2372 draw_view_line(view, view->lineno - view->offset);
2374 redrawwin(view->win);
2375 wrefresh(view->win);
2384 static void search_view(struct view *view, enum request request);
2387 find_next_line(struct view *view, unsigned long lineno, struct line *line)
2389 assert(view_is_displayed(view));
2391 if (!view->ops->grep(view, line))
2394 if (lineno - view->offset >= view->height) {
2395 view->offset = lineno;
2396 view->lineno = lineno;
2400 unsigned long old_lineno = view->lineno - view->offset;
2402 view->lineno = lineno;
2403 draw_view_line(view, old_lineno);
2405 draw_view_line(view, view->lineno - view->offset);
2406 redrawwin(view->win);
2407 wrefresh(view->win);
2410 report("Line %ld matches '%s'", lineno + 1, view->grep);
2415 find_next(struct view *view, enum request request)
2417 unsigned long lineno = view->lineno;
2422 report("No previous search");
2424 search_view(view, request);
2434 case REQ_SEARCH_BACK:
2443 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2444 lineno += direction;
2446 /* Note, lineno is unsigned long so will wrap around in which case it
2447 * will become bigger than view->lines. */
2448 for (; lineno < view->lines; lineno += direction) {
2449 struct line *line = &view->line[lineno];
2451 if (find_next_line(view, lineno, line))
2455 report("No match found for '%s'", view->grep);
2459 search_view(struct view *view, enum request request)
2464 regfree(view->regex);
2467 view->regex = calloc(1, sizeof(*view->regex));
2472 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2473 if (regex_err != 0) {
2474 char buf[SIZEOF_STR] = "unknown error";
2476 regerror(regex_err, view->regex, buf, sizeof(buf));
2477 report("Search failed: %s", buf);
2481 string_copy(view->grep, opt_search);
2483 find_next(view, request);
2487 * Incremental updating
2491 reset_view(struct view *view)
2495 for (i = 0; i < view->lines; i++)
2496 free(view->line[i].data);
2503 view->line_alloc = 0;
2505 view->update_secs = 0;
2509 free_argv(const char *argv[])
2513 for (argc = 0; argv[argc]; argc++)
2514 free((void *) argv[argc]);
2518 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2520 char buf[SIZEOF_STR];
2522 bool noreplace = flags == FORMAT_NONE;
2524 free_argv(dst_argv);
2526 for (argc = 0; src_argv[argc]; argc++) {
2527 const char *arg = src_argv[argc];
2531 char *next = strstr(arg, "%(");
2532 int len = next - arg;
2535 if (!next || noreplace) {
2536 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2541 } else if (!prefixcmp(next, "%(directory)")) {
2544 } else if (!prefixcmp(next, "%(file)")) {
2547 } else if (!prefixcmp(next, "%(ref)")) {
2548 value = *opt_ref ? opt_ref : "HEAD";
2550 } else if (!prefixcmp(next, "%(head)")) {
2553 } else if (!prefixcmp(next, "%(commit)")) {
2556 } else if (!prefixcmp(next, "%(blob)")) {
2560 report("Unknown replacement: `%s`", next);
2564 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2567 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2570 dst_argv[argc] = strdup(buf);
2571 if (!dst_argv[argc])
2575 dst_argv[argc] = NULL;
2577 return src_argv[argc] == NULL;
2581 end_update(struct view *view, bool force)
2585 while (!view->ops->read(view, NULL))
2588 set_nonblocking_input(FALSE);
2590 kill_io(view->pipe);
2591 done_io(view->pipe);
2596 setup_update(struct view *view, const char *vid)
2598 set_nonblocking_input(TRUE);
2600 string_copy_rev(view->vid, vid);
2601 view->pipe = &view->io;
2602 view->start_time = time(NULL);
2606 prepare_update(struct view *view, const char *argv[], const char *dir,
2607 enum format_flags flags)
2610 end_update(view, TRUE);
2611 return init_io_rd(&view->io, argv, dir, flags);
2615 prepare_update_file(struct view *view, const char *name)
2618 end_update(view, TRUE);
2619 return io_open(&view->io, name);
2623 begin_update(struct view *view, bool refresh)
2626 if (!start_io(&view->io))
2630 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2633 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2636 /* Put the current ref_* value to the view title ref
2637 * member. This is needed by the blob view. Most other
2638 * views sets it automatically after loading because the
2639 * first line is a commit line. */
2640 string_copy_rev(view->ref, view->id);
2643 setup_update(view, view->id);
2648 #define ITEM_CHUNK_SIZE 256
2650 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2652 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2653 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2655 if (mem == NULL || num_chunks != num_chunks_new) {
2656 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2657 mem = realloc(mem, *size * item_size);
2663 static struct line *
2664 realloc_lines(struct view *view, size_t line_size)
2666 size_t alloc = view->line_alloc;
2667 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2668 sizeof(*view->line));
2674 view->line_alloc = alloc;
2679 update_view(struct view *view)
2681 char out_buffer[BUFSIZ * 2];
2683 /* Clear the view and redraw everything since the tree sorting
2684 * might have rearranged things. */
2685 bool redraw = view->lines == 0;
2686 bool can_read = TRUE;
2691 if (!io_can_read(view->pipe)) {
2692 if (view->lines == 0) {
2693 time_t secs = time(NULL) - view->start_time;
2695 if (secs > view->update_secs) {
2696 if (view->update_secs == 0)
2698 update_view_title(view);
2699 view->update_secs = secs;
2705 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2706 if (opt_iconv != ICONV_NONE) {
2707 ICONV_CONST char *inbuf = line;
2708 size_t inlen = strlen(line) + 1;
2710 char *outbuf = out_buffer;
2711 size_t outlen = sizeof(out_buffer);
2715 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2716 if (ret != (size_t) -1)
2720 if (!view->ops->read(view, line))
2725 unsigned long lines = view->lines;
2728 for (digits = 0; lines; digits++)
2731 /* Keep the displayed view in sync with line number scaling. */
2732 if (digits != view->digits) {
2733 view->digits = digits;
2734 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2739 if (io_error(view->pipe)) {
2740 report("Failed to read: %s", io_strerror(view->pipe));
2741 end_update(view, TRUE);
2743 } else if (io_eof(view->pipe)) {
2745 end_update(view, FALSE);
2748 if (!view_is_displayed(view))
2752 redraw_view_from(view, 0);
2754 redraw_view_dirty(view);
2756 /* Update the title _after_ the redraw so that if the redraw picks up a
2757 * commit reference in view->ref it'll be available here. */
2758 update_view_title(view);
2762 report("Allocation failure");
2763 end_update(view, TRUE);
2767 static struct line *
2768 add_line_data(struct view *view, void *data, enum line_type type)
2772 if (!realloc_lines(view, view->lines + 1))
2775 line = &view->line[view->lines++];
2776 memset(line, 0, sizeof(*line));
2784 static struct line *
2785 add_line_text(struct view *view, const char *text, enum line_type type)
2787 char *data = text ? strdup(text) : NULL;
2789 return data ? add_line_data(view, data, type) : NULL;
2792 static struct line *
2793 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2795 char buf[SIZEOF_STR];
2798 va_start(args, fmt);
2799 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2803 return buf[0] ? add_line_text(view, buf, type) : NULL;
2811 OPEN_DEFAULT = 0, /* Use default view switching. */
2812 OPEN_SPLIT = 1, /* Split current view. */
2813 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2814 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2815 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2816 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2817 OPEN_PREPARED = 32, /* Open already prepared command. */
2821 open_view(struct view *prev, enum request request, enum open_flags flags)
2823 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2824 bool split = !!(flags & OPEN_SPLIT);
2825 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2826 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2827 struct view *view = VIEW(request);
2828 int nviews = displayed_views();
2829 struct view *base_view = display[0];
2831 if (view == prev && nviews == 1 && !reload) {
2832 report("Already in %s view", view->name);
2836 if (view->git_dir && !opt_git_dir[0]) {
2837 report("The %s view is disabled in pager view", view->name);
2845 } else if (!nomaximize) {
2846 /* Maximize the current view. */
2847 memset(display, 0, sizeof(display));
2849 display[current_view] = view;
2852 /* Resize the view when switching between split- and full-screen,
2853 * or when switching between two different full-screen views. */
2854 if (nviews != displayed_views() ||
2855 (nviews == 1 && base_view != display[0]))
2859 end_update(view, TRUE);
2861 if (view->ops->open) {
2862 if (!view->ops->open(view)) {
2863 report("Failed to load %s view", view->name);
2867 } else if ((reload || strcmp(view->vid, view->id)) &&
2868 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2869 report("Failed to load %s view", view->name);
2873 if (split && prev->lineno - prev->offset >= prev->height) {
2874 /* Take the title line into account. */
2875 int lines = prev->lineno - prev->offset - prev->height + 1;
2877 /* Scroll the view that was split if the current line is
2878 * outside the new limited view. */
2879 do_scroll_view(prev, lines);
2882 if (prev && view != prev) {
2883 if (split && !backgrounded) {
2884 /* "Blur" the previous view. */
2885 update_view_title(prev);
2888 view->parent = prev;
2891 if (view->pipe && view->lines == 0) {
2892 /* Clear the old view and let the incremental updating refill
2896 } else if (view_is_displayed(view)) {
2901 /* If the view is backgrounded the above calls to report()
2902 * won't redraw the view title. */
2904 update_view_title(view);
2908 open_external_viewer(const char *argv[], const char *dir)
2910 def_prog_mode(); /* save current tty modes */
2911 endwin(); /* restore original tty modes */
2912 run_io_fg(argv, dir);
2913 fprintf(stderr, "Press Enter to continue");
2920 open_mergetool(const char *file)
2922 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
2924 open_external_viewer(mergetool_argv, opt_cdup);
2928 open_editor(bool from_root, const char *file)
2930 const char *editor_argv[] = { "vi", file, NULL };
2933 editor = getenv("GIT_EDITOR");
2934 if (!editor && *opt_editor)
2935 editor = opt_editor;
2937 editor = getenv("VISUAL");
2939 editor = getenv("EDITOR");
2943 editor_argv[0] = editor;
2944 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
2948 open_run_request(enum request request)
2950 struct run_request *req = get_run_request(request);
2951 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
2954 report("Unknown run request");
2958 if (format_argv(argv, req->argv, FORMAT_ALL))
2959 open_external_viewer(argv, NULL);
2964 * User request switch noodle
2968 view_driver(struct view *view, enum request request)
2972 if (request == REQ_NONE) {
2977 if (request > REQ_NONE) {
2978 open_run_request(request);
2979 /* FIXME: When all views can refresh always do this. */
2980 if (view == VIEW(REQ_VIEW_STATUS) ||
2981 view == VIEW(REQ_VIEW_MAIN) ||
2982 view == VIEW(REQ_VIEW_LOG) ||
2983 view == VIEW(REQ_VIEW_STAGE))
2984 request = REQ_REFRESH;
2989 if (view && view->lines) {
2990 request = view->ops->request(view, request, &view->line[view->lineno]);
2991 if (request == REQ_NONE)
2998 case REQ_MOVE_PAGE_UP:
2999 case REQ_MOVE_PAGE_DOWN:
3000 case REQ_MOVE_FIRST_LINE:
3001 case REQ_MOVE_LAST_LINE:
3002 move_view(view, request);
3005 case REQ_SCROLL_LINE_DOWN:
3006 case REQ_SCROLL_LINE_UP:
3007 case REQ_SCROLL_PAGE_DOWN:
3008 case REQ_SCROLL_PAGE_UP:
3009 scroll_view(view, request);
3012 case REQ_VIEW_BLAME:
3014 report("No file chosen, press %s to open tree view",
3015 get_key(REQ_VIEW_TREE));
3018 open_view(view, request, OPEN_DEFAULT);
3023 report("No file chosen, press %s to open tree view",
3024 get_key(REQ_VIEW_TREE));
3027 open_view(view, request, OPEN_DEFAULT);
3030 case REQ_VIEW_PAGER:
3031 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3032 report("No pager content, press %s to run command from prompt",
3033 get_key(REQ_PROMPT));
3036 open_view(view, request, OPEN_DEFAULT);
3039 case REQ_VIEW_STAGE:
3040 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3041 report("No stage content, press %s to open the status view and choose file",
3042 get_key(REQ_VIEW_STATUS));
3045 open_view(view, request, OPEN_DEFAULT);
3048 case REQ_VIEW_STATUS:
3049 if (opt_is_inside_work_tree == FALSE) {
3050 report("The status view requires a working tree");
3053 open_view(view, request, OPEN_DEFAULT);
3061 open_view(view, request, OPEN_DEFAULT);
3066 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3068 if ((view == VIEW(REQ_VIEW_DIFF) &&
3069 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3070 (view == VIEW(REQ_VIEW_DIFF) &&
3071 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3072 (view == VIEW(REQ_VIEW_STAGE) &&
3073 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3074 (view == VIEW(REQ_VIEW_BLOB) &&
3075 view->parent == VIEW(REQ_VIEW_TREE))) {
3078 view = view->parent;
3079 line = view->lineno;
3080 move_view(view, request);
3081 if (view_is_displayed(view))
3082 update_view_title(view);
3083 if (line != view->lineno)
3084 view->ops->request(view, REQ_ENTER,
3085 &view->line[view->lineno]);
3088 move_view(view, request);
3094 int nviews = displayed_views();
3095 int next_view = (current_view + 1) % nviews;
3097 if (next_view == current_view) {
3098 report("Only one view is displayed");
3102 current_view = next_view;
3103 /* Blur out the title of the previous view. */
3104 update_view_title(view);
3109 report("Refreshing is not yet supported for the %s view", view->name);
3113 if (displayed_views() == 2)
3114 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3117 case REQ_TOGGLE_LINENO:
3118 opt_line_number = !opt_line_number;
3122 case REQ_TOGGLE_DATE:
3123 opt_date = !opt_date;
3127 case REQ_TOGGLE_AUTHOR:
3128 opt_author = !opt_author;
3132 case REQ_TOGGLE_REV_GRAPH:
3133 opt_rev_graph = !opt_rev_graph;
3137 case REQ_TOGGLE_REFS:
3138 opt_show_refs = !opt_show_refs;
3143 case REQ_SEARCH_BACK:
3144 search_view(view, request);
3149 find_next(view, request);
3152 case REQ_STOP_LOADING:
3153 for (i = 0; i < ARRAY_SIZE(views); i++) {
3156 report("Stopped loading the %s view", view->name),
3157 end_update(view, TRUE);
3161 case REQ_SHOW_VERSION:
3162 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3165 case REQ_SCREEN_RESIZE:
3168 case REQ_SCREEN_REDRAW:
3173 report("Nothing to edit");
3177 report("Nothing to enter");
3180 case REQ_VIEW_CLOSE:
3181 /* XXX: Mark closed views by letting view->parent point to the
3182 * view itself. Parents to closed view should never be
3185 view->parent->parent != view->parent) {
3186 memset(display, 0, sizeof(display));
3188 display[current_view] = view->parent;
3189 view->parent = view;
3200 report("Unknown key, press 'h' for help");
3213 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3215 char *text = line->data;
3217 if (opt_line_number && draw_lineno(view, lineno))
3220 draw_text(view, line->type, text, TRUE);
3225 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3227 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3228 char refbuf[SIZEOF_STR];
3231 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3232 ref = chomp_string(refbuf);
3237 /* This is the only fatal call, since it can "corrupt" the buffer. */
3238 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3245 add_pager_refs(struct view *view, struct line *line)
3247 char buf[SIZEOF_STR];
3248 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3250 size_t bufpos = 0, refpos = 0;
3251 const char *sep = "Refs: ";
3252 bool is_tag = FALSE;
3254 assert(line->type == LINE_COMMIT);
3256 refs = get_refs(commit_id);
3258 if (view == VIEW(REQ_VIEW_DIFF))
3259 goto try_add_describe_ref;
3264 struct ref *ref = refs[refpos];
3265 const char *fmt = ref->tag ? "%s[%s]" :
3266 ref->remote ? "%s<%s>" : "%s%s";
3268 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3273 } while (refs[refpos++]->next);
3275 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3276 try_add_describe_ref:
3277 /* Add <tag>-g<commit_id> "fake" reference. */
3278 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3285 add_line_text(view, buf, LINE_PP_REFS);
3289 pager_read(struct view *view, char *data)
3296 line = add_line_text(view, data, get_line_type(data));
3300 if (line->type == LINE_COMMIT &&
3301 (view == VIEW(REQ_VIEW_DIFF) ||
3302 view == VIEW(REQ_VIEW_LOG)))
3303 add_pager_refs(view, line);
3309 pager_request(struct view *view, enum request request, struct line *line)
3313 if (request != REQ_ENTER)
3316 if (line->type == LINE_COMMIT &&
3317 (view == VIEW(REQ_VIEW_LOG) ||
3318 view == VIEW(REQ_VIEW_PAGER))) {
3319 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3323 /* Always scroll the view even if it was split. That way
3324 * you can use Enter to scroll through the log view and
3325 * split open each commit diff. */
3326 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3328 /* FIXME: A minor workaround. Scrolling the view will call report("")
3329 * but if we are scrolling a non-current view this won't properly
3330 * update the view title. */
3332 update_view_title(view);
3338 pager_grep(struct view *view, struct line *line)
3341 char *text = line->data;
3346 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3353 pager_select(struct view *view, struct line *line)
3355 if (line->type == LINE_COMMIT) {
3356 char *text = (char *)line->data + STRING_SIZE("commit ");
3358 if (view != VIEW(REQ_VIEW_PAGER))
3359 string_copy_rev(view->ref, text);
3360 string_copy_rev(ref_commit, text);
3364 static struct view_ops pager_ops = {
3375 static const char *log_argv[SIZEOF_ARG] = {
3376 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3380 log_request(struct view *view, enum request request, struct line *line)
3385 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3388 return pager_request(view, request, line);
3392 static struct view_ops log_ops = {
3403 static const char *diff_argv[SIZEOF_ARG] = {
3404 "git", "show", "--pretty=fuller", "--no-color", "--root",
3405 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3408 static struct view_ops diff_ops = {
3424 help_open(struct view *view)
3426 int lines = ARRAY_SIZE(req_info) + 2;
3429 if (view->lines > 0)
3432 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3433 if (!req_info[i].request)
3436 lines += run_requests + 1;
3438 view->line = calloc(lines, sizeof(*view->line));
3442 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3444 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3447 if (req_info[i].request == REQ_NONE)
3450 if (!req_info[i].request) {
3451 add_line_text(view, "", LINE_DEFAULT);
3452 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3456 key = get_key(req_info[i].request);
3458 key = "(no key defined)";
3460 add_line_format(view, LINE_DEFAULT, " %-25s %s",
3461 key, req_info[i].help);
3465 add_line_text(view, "", LINE_DEFAULT);
3466 add_line_text(view, "External commands:", LINE_DEFAULT);
3469 for (i = 0; i < run_requests; i++) {
3470 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3472 char cmd[SIZEOF_STR];
3479 key = get_key_name(req->key);
3481 key = "(no key defined)";
3483 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3484 if (!string_format_from(cmd, &bufpos, "%s%s",
3485 argc ? " " : "", req->argv[argc]))
3488 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3489 keymap_table[req->keymap].name, key, cmd);
3495 static struct view_ops help_ops = {
3511 struct tree_stack_entry {
3512 struct tree_stack_entry *prev; /* Entry below this in the stack */
3513 unsigned long lineno; /* Line number to restore */
3514 char *name; /* Position of name in opt_path */
3517 /* The top of the path stack. */
3518 static struct tree_stack_entry *tree_stack = NULL;
3519 unsigned long tree_lineno = 0;
3522 pop_tree_stack_entry(void)
3524 struct tree_stack_entry *entry = tree_stack;
3526 tree_lineno = entry->lineno;
3528 tree_stack = entry->prev;
3533 push_tree_stack_entry(const char *name, unsigned long lineno)
3535 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3536 size_t pathlen = strlen(opt_path);
3541 entry->prev = tree_stack;
3542 entry->name = opt_path + pathlen;
3545 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3546 pop_tree_stack_entry();
3550 /* Move the current line to the first tree entry. */
3552 entry->lineno = lineno;
3555 /* Parse output from git-ls-tree(1):
3557 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3558 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3559 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3560 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3563 #define SIZEOF_TREE_ATTR \
3564 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3566 #define TREE_UP_FORMAT "040000 tree %s\t.."
3569 tree_path(struct line *line)
3571 const char *path = line->data;
3573 return path + SIZEOF_TREE_ATTR;
3577 tree_compare_entry(struct line *line1, struct line *line2)
3579 if (line1->type != line2->type)
3580 return line1->type == LINE_TREE_DIR ? -1 : 1;
3581 return strcmp(tree_path(line1), tree_path(line2));
3585 tree_read(struct view *view, char *text)
3587 size_t textlen = text ? strlen(text) : 0;
3588 struct line *entry, *line;
3589 enum line_type type;
3593 if (textlen <= SIZEOF_TREE_ATTR)
3596 type = text[STRING_SIZE("100644 ")] == 't'
3597 ? LINE_TREE_DIR : LINE_TREE_FILE;
3599 if (view->lines == 0 &&
3600 !add_line_format(view, LINE_DEFAULT, "Directory path /%s", opt_path))
3603 /* Strip the path part ... */
3605 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3606 size_t striplen = strlen(opt_path);
3607 char *path = text + SIZEOF_TREE_ATTR;
3609 if (pathlen > striplen)
3610 memmove(path, path + striplen,
3611 pathlen - striplen + 1);
3613 /* Insert "link" to parent directory. */
3614 if (view->lines == 1 &&
3615 !add_line_format(view, LINE_TREE_DIR, TREE_UP_FORMAT, view->ref))
3619 entry = add_line_text(view, text, type);
3624 /* Skip "Directory ..." and ".." line. */
3625 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3626 if (tree_compare_entry(line, entry) <= 0)
3629 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3633 for (; line <= entry; line++)
3634 line->dirty = line->cleareol = 1;
3638 if (tree_lineno > view->lineno) {
3639 view->lineno = tree_lineno;
3647 tree_request(struct view *view, enum request request, struct line *line)
3649 enum open_flags flags;
3652 case REQ_VIEW_BLAME:
3653 if (line->type != LINE_TREE_FILE) {
3654 report("Blame only supported for files");
3658 string_copy(opt_ref, view->vid);
3662 if (line->type != LINE_TREE_FILE) {
3663 report("Edit only supported for files");
3664 } else if (!is_head_commit(view->vid)) {
3665 report("Edit only supported for files in the current work tree");
3667 open_editor(TRUE, opt_file);
3671 case REQ_TREE_PARENT:
3673 /* quit view if at top of tree */
3674 return REQ_VIEW_CLOSE;
3677 line = &view->line[1];
3687 /* Cleanup the stack if the tree view is at a different tree. */
3688 while (!*opt_path && tree_stack)
3689 pop_tree_stack_entry();
3691 switch (line->type) {
3693 /* Depending on whether it is a subdir or parent (updir?) link
3694 * mangle the path buffer. */
3695 if (line == &view->line[1] && *opt_path) {
3696 pop_tree_stack_entry();
3699 const char *basename = tree_path(line);
3701 push_tree_stack_entry(basename, view->lineno);
3704 /* Trees and subtrees share the same ID, so they are not not
3705 * unique like blobs. */
3706 flags = OPEN_RELOAD;
3707 request = REQ_VIEW_TREE;
3710 case LINE_TREE_FILE:
3711 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3712 request = REQ_VIEW_BLOB;
3719 open_view(view, request, flags);
3720 if (request == REQ_VIEW_TREE) {
3721 view->lineno = tree_lineno;
3728 tree_select(struct view *view, struct line *line)
3730 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3732 if (line->type == LINE_TREE_FILE) {
3733 string_copy_rev(ref_blob, text);
3734 string_format(opt_file, "%s%s", opt_path, tree_path(line));
3736 } else if (line->type != LINE_TREE_DIR) {
3740 string_copy_rev(view->ref, text);
3743 static const char *tree_argv[SIZEOF_ARG] = {
3744 "git", "ls-tree", "%(commit)", "%(directory)", NULL
3747 static struct view_ops tree_ops = {
3759 blob_read(struct view *view, char *line)
3763 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3766 static const char *blob_argv[SIZEOF_ARG] = {
3767 "git", "cat-file", "blob", "%(blob)", NULL
3770 static struct view_ops blob_ops = {
3784 * Loading the blame view is a two phase job:
3786 * 1. File content is read either using opt_file from the
3787 * filesystem or using git-cat-file.
3788 * 2. Then blame information is incrementally added by
3789 * reading output from git-blame.
3792 static const char *blame_head_argv[] = {
3793 "git", "blame", "--incremental", "--", "%(file)", NULL
3796 static const char *blame_ref_argv[] = {
3797 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
3800 static const char *blame_cat_file_argv[] = {
3801 "git", "cat-file", "blob", "%(ref):%(file)", NULL
3804 struct blame_commit {
3805 char id[SIZEOF_REV]; /* SHA1 ID. */
3806 char title[128]; /* First line of the commit message. */
3807 char author[75]; /* Author of the commit. */
3808 struct tm time; /* Date from the author ident. */
3809 char filename[128]; /* Name of file. */
3813 struct blame_commit *commit;
3818 blame_open(struct view *view)
3820 if (*opt_ref || !io_open(&view->io, opt_file)) {
3821 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
3825 setup_update(view, opt_file);
3826 string_format(view->ref, "%s ...", opt_file);
3831 static struct blame_commit *
3832 get_blame_commit(struct view *view, const char *id)
3836 for (i = 0; i < view->lines; i++) {
3837 struct blame *blame = view->line[i].data;
3842 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3843 return blame->commit;
3847 struct blame_commit *commit = calloc(1, sizeof(*commit));
3850 string_ncopy(commit->id, id, SIZEOF_REV);
3856 parse_number(const char **posref, size_t *number, size_t min, size_t max)
3858 const char *pos = *posref;
3861 pos = strchr(pos + 1, ' ');
3862 if (!pos || !isdigit(pos[1]))
3864 *number = atoi(pos + 1);
3865 if (*number < min || *number > max)
3872 static struct blame_commit *
3873 parse_blame_commit(struct view *view, const char *text, int *blamed)
3875 struct blame_commit *commit;
3876 struct blame *blame;
3877 const char *pos = text + SIZEOF_REV - 1;
3881 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3884 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3885 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3888 commit = get_blame_commit(view, text);
3894 struct line *line = &view->line[lineno + group - 1];
3897 blame->commit = commit;
3905 blame_read_file(struct view *view, const char *line, bool *read_file)
3908 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
3911 if (view->lines == 0 && !view->parent)
3912 die("No blame exist for %s", view->vid);
3914 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
3915 report("Failed to load blame data");
3919 done_io(view->pipe);
3925 size_t linelen = strlen(line);
3926 struct blame *blame = malloc(sizeof(*blame) + linelen);
3928 blame->commit = NULL;
3929 strncpy(blame->text, line, linelen);
3930 blame->text[linelen] = 0;
3931 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3936 match_blame_header(const char *name, char **line)
3938 size_t namelen = strlen(name);
3939 bool matched = !strncmp(name, *line, namelen);
3948 blame_read(struct view *view, char *line)
3950 static struct blame_commit *commit = NULL;
3951 static int blamed = 0;
3952 static time_t author_time;
3953 static bool read_file = TRUE;
3956 return blame_read_file(view, line, &read_file);
3963 string_format(view->ref, "%s", view->vid);
3964 if (view_is_displayed(view)) {
3965 update_view_title(view);
3966 redraw_view_from(view, 0);
3972 commit = parse_blame_commit(view, line, &blamed);
3973 string_format(view->ref, "%s %2d%%", view->vid,
3974 blamed * 100 / view->lines);
3976 } else if (match_blame_header("author ", &line)) {
3977 string_ncopy(commit->author, line, strlen(line));
3979 } else if (match_blame_header("author-time ", &line)) {
3980 author_time = (time_t) atol(line);
3982 } else if (match_blame_header("author-tz ", &line)) {
3985 tz = ('0' - line[1]) * 60 * 60 * 10;
3986 tz += ('0' - line[2]) * 60 * 60;
3987 tz += ('0' - line[3]) * 60;
3988 tz += ('0' - line[4]) * 60;
3994 gmtime_r(&author_time, &commit->time);
3996 } else if (match_blame_header("summary ", &line)) {
3997 string_ncopy(commit->title, line, strlen(line));
3999 } else if (match_blame_header("filename ", &line)) {
4000 string_ncopy(commit->filename, line, strlen(line));
4008 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4010 struct blame *blame = line->data;
4011 struct tm *time = NULL;
4012 const char *id = NULL, *author = NULL;
4014 if (blame->commit && *blame->commit->filename) {
4015 id = blame->commit->id;
4016 author = blame->commit->author;
4017 time = &blame->commit->time;
4020 if (opt_date && draw_date(view, time))
4024 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
4027 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4030 if (draw_lineno(view, lineno))
4033 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4038 check_blame_commit(struct blame *blame)
4041 report("Commit data not loaded yet");
4042 else if (!strcmp(blame->commit->id, NULL_ID))
4043 report("No commit exist for the selected line");
4050 blame_request(struct view *view, enum request request, struct line *line)
4052 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4053 struct blame *blame = line->data;
4056 case REQ_VIEW_BLAME:
4057 if (check_blame_commit(blame)) {
4058 string_copy(opt_ref, blame->commit->id);
4059 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4064 if (!blame->commit) {
4065 report("No commit loaded yet");
4069 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4070 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4073 if (!strcmp(blame->commit->id, NULL_ID)) {
4074 struct view *diff = VIEW(REQ_VIEW_DIFF);
4075 const char *diff_index_argv[] = {
4076 "git", "diff-index", "--root", "--cached",
4077 "--patch-with-stat", "-C", "-M",
4078 "HEAD", "--", view->vid, NULL
4081 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4082 report("Failed to allocate diff command");
4085 flags |= OPEN_PREPARED;
4088 open_view(view, REQ_VIEW_DIFF, flags);
4099 blame_grep(struct view *view, struct line *line)
4101 struct blame *blame = line->data;
4102 struct blame_commit *commit = blame->commit;
4105 #define MATCH(text, on) \
4106 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4109 char buf[DATE_COLS + 1];
4111 if (MATCH(commit->title, 1) ||
4112 MATCH(commit->author, opt_author) ||
4113 MATCH(commit->id, opt_date))
4116 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4121 return MATCH(blame->text, 1);
4127 blame_select(struct view *view, struct line *line)
4129 struct blame *blame = line->data;
4130 struct blame_commit *commit = blame->commit;
4135 if (!strcmp(commit->id, NULL_ID))
4136 string_ncopy(ref_commit, "HEAD", 4);
4138 string_copy_rev(ref_commit, commit->id);
4141 static struct view_ops blame_ops = {
4160 char rev[SIZEOF_REV];
4161 char name[SIZEOF_STR];
4165 char rev[SIZEOF_REV];
4166 char name[SIZEOF_STR];
4170 static char status_onbranch[SIZEOF_STR];
4171 static struct status stage_status;
4172 static enum line_type stage_line_type;
4173 static size_t stage_chunks;
4174 static int *stage_chunk;
4176 /* This should work even for the "On branch" line. */
4178 status_has_none(struct view *view, struct line *line)
4180 return line < view->line + view->lines && !line[1].data;
4183 /* Get fields from the diff line:
4184 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4187 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4189 const char *old_mode = buf + 1;
4190 const char *new_mode = buf + 8;
4191 const char *old_rev = buf + 15;
4192 const char *new_rev = buf + 56;
4193 const char *status = buf + 97;
4196 old_mode[-1] != ':' ||
4197 new_mode[-1] != ' ' ||
4198 old_rev[-1] != ' ' ||
4199 new_rev[-1] != ' ' ||
4203 file->status = *status;
4205 string_copy_rev(file->old.rev, old_rev);
4206 string_copy_rev(file->new.rev, new_rev);
4208 file->old.mode = strtoul(old_mode, NULL, 8);
4209 file->new.mode = strtoul(new_mode, NULL, 8);
4211 file->old.name[0] = file->new.name[0] = 0;
4217 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4219 struct status *file = NULL;
4220 struct status *unmerged = NULL;
4224 if (!run_io(&io, argv, NULL, IO_RD))
4227 add_line_data(view, NULL, type);
4229 while ((buf = io_get(&io, 0, TRUE))) {
4231 file = calloc(1, sizeof(*file));
4232 if (!file || !add_line_data(view, file, type))
4236 /* Parse diff info part. */
4238 file->status = status;
4240 string_copy(file->old.rev, NULL_ID);
4242 } else if (!file->status) {
4243 if (!status_get_diff(file, buf, strlen(buf)))
4246 buf = io_get(&io, 0, TRUE);
4250 /* Collapse all 'M'odified entries that follow a
4251 * associated 'U'nmerged entry. */
4252 if (file->status == 'U') {
4255 } else if (unmerged) {
4256 int collapse = !strcmp(buf, unmerged->new.name);
4267 /* Grab the old name for rename/copy. */
4268 if (!*file->old.name &&
4269 (file->status == 'R' || file->status == 'C')) {
4270 string_ncopy(file->old.name, buf, strlen(buf));
4272 buf = io_get(&io, 0, TRUE);
4277 /* git-ls-files just delivers a NUL separated list of
4278 * file names similar to the second half of the
4279 * git-diff-* output. */
4280 string_ncopy(file->new.name, buf, strlen(buf));
4281 if (!*file->old.name)
4282 string_copy(file->old.name, file->new.name);
4286 if (io_error(&io)) {
4292 if (!view->line[view->lines - 1].data)
4293 add_line_data(view, NULL, LINE_STAT_NONE);
4299 /* Don't show unmerged entries in the staged section. */
4300 static const char *status_diff_index_argv[] = {
4301 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4302 "--cached", "-M", "HEAD", NULL
4305 static const char *status_diff_files_argv[] = {
4306 "git", "diff-files", "-z", NULL
4309 static const char *status_list_other_argv[] = {
4310 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4313 static const char *status_list_no_head_argv[] = {
4314 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4317 static const char *update_index_argv[] = {
4318 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4321 /* First parse staged info using git-diff-index(1), then parse unstaged
4322 * info using git-diff-files(1), and finally untracked files using
4323 * git-ls-files(1). */
4325 status_open(struct view *view)
4327 unsigned long prev_lineno = view->lineno;
4331 add_line_data(view, NULL, LINE_STAT_HEAD);
4332 if (is_initial_commit())
4333 string_copy(status_onbranch, "Initial commit");
4334 else if (!*opt_head)
4335 string_copy(status_onbranch, "Not currently on any branch");
4336 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4339 run_io_bg(update_index_argv);
4341 if (is_initial_commit()) {
4342 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4344 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4348 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4349 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4352 /* If all went well restore the previous line number to stay in
4353 * the context or select a line with something that can be
4355 if (prev_lineno >= view->lines)
4356 prev_lineno = view->lines - 1;
4357 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4359 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4362 /* If the above fails, always skip the "On branch" line. */
4363 if (prev_lineno < view->lines)
4364 view->lineno = prev_lineno;
4368 if (view->lineno < view->offset)
4369 view->offset = view->lineno;
4370 else if (view->offset + view->height <= view->lineno)
4371 view->offset = view->lineno - view->height + 1;
4377 status_draw(struct view *view, struct line *line, unsigned int lineno)
4379 struct status *status = line->data;
4380 enum line_type type;
4384 switch (line->type) {
4385 case LINE_STAT_STAGED:
4386 type = LINE_STAT_SECTION;
4387 text = "Changes to be committed:";
4390 case LINE_STAT_UNSTAGED:
4391 type = LINE_STAT_SECTION;
4392 text = "Changed but not updated:";
4395 case LINE_STAT_UNTRACKED:
4396 type = LINE_STAT_SECTION;
4397 text = "Untracked files:";
4400 case LINE_STAT_NONE:
4401 type = LINE_DEFAULT;
4402 text = " (no files)";
4405 case LINE_STAT_HEAD:
4406 type = LINE_STAT_HEAD;
4407 text = status_onbranch;
4414 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4416 buf[0] = status->status;
4417 if (draw_text(view, line->type, buf, TRUE))
4419 type = LINE_DEFAULT;
4420 text = status->new.name;
4423 draw_text(view, type, text, TRUE);
4428 status_enter(struct view *view, struct line *line)
4430 struct status *status = line->data;
4431 const char *oldpath = status ? status->old.name : NULL;
4432 /* Diffs for unmerged entries are empty when passing the new
4433 * path, so leave it empty. */
4434 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4436 enum open_flags split;
4437 struct view *stage = VIEW(REQ_VIEW_STAGE);
4439 if (line->type == LINE_STAT_NONE ||
4440 (!status && line[1].type == LINE_STAT_NONE)) {
4441 report("No file to diff");
4445 switch (line->type) {
4446 case LINE_STAT_STAGED:
4447 if (is_initial_commit()) {
4448 const char *no_head_diff_argv[] = {
4449 "git", "diff", "--no-color", "--patch-with-stat",
4450 "--", "/dev/null", newpath, NULL
4453 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4456 const char *index_show_argv[] = {
4457 "git", "diff-index", "--root", "--patch-with-stat",
4458 "-C", "-M", "--cached", "HEAD", "--",
4459 oldpath, newpath, NULL
4462 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4467 info = "Staged changes to %s";
4469 info = "Staged changes";
4472 case LINE_STAT_UNSTAGED:
4474 const char *files_show_argv[] = {
4475 "git", "diff-files", "--root", "--patch-with-stat",
4476 "-C", "-M", "--", oldpath, newpath, NULL
4479 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4482 info = "Unstaged changes to %s";
4484 info = "Unstaged changes";
4487 case LINE_STAT_UNTRACKED:
4489 report("No file to show");
4493 if (!suffixcmp(status->new.name, -1, "/")) {
4494 report("Cannot display a directory");
4498 if (!prepare_update_file(stage, newpath))
4500 info = "Untracked file %s";
4503 case LINE_STAT_HEAD:
4507 die("line type %d not handled in switch", line->type);
4510 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4511 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH | split);
4512 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4514 stage_status = *status;
4516 memset(&stage_status, 0, sizeof(stage_status));
4519 stage_line_type = line->type;
4521 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4528 status_exists(struct status *status, enum line_type type)
4530 struct view *view = VIEW(REQ_VIEW_STATUS);
4533 for (line = view->line; line < view->line + view->lines; line++) {
4534 struct status *pos = line->data;
4536 if (line->type == type && pos &&
4537 !strcmp(status->new.name, pos->new.name))
4546 status_update_prepare(struct io *io, enum line_type type)
4548 const char *staged_argv[] = {
4549 "git", "update-index", "-z", "--index-info", NULL
4551 const char *others_argv[] = {
4552 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4556 case LINE_STAT_STAGED:
4557 return run_io(io, staged_argv, opt_cdup, IO_WR);
4559 case LINE_STAT_UNSTAGED:
4560 return run_io(io, others_argv, opt_cdup, IO_WR);
4562 case LINE_STAT_UNTRACKED:
4563 return run_io(io, others_argv, NULL, IO_WR);
4566 die("line type %d not handled in switch", type);
4572 status_update_write(struct io *io, struct status *status, enum line_type type)
4574 char buf[SIZEOF_STR];
4578 case LINE_STAT_STAGED:
4579 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4582 status->old.name, 0))
4586 case LINE_STAT_UNSTAGED:
4587 case LINE_STAT_UNTRACKED:
4588 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4593 die("line type %d not handled in switch", type);
4596 return io_write(io, buf, bufsize);
4600 status_update_file(struct status *status, enum line_type type)
4605 if (!status_update_prepare(&io, type))
4608 result = status_update_write(&io, status, type);
4614 status_update_files(struct view *view, struct line *line)
4618 struct line *pos = view->line + view->lines;
4622 if (!status_update_prepare(&io, line->type))
4625 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4628 for (file = 0, done = 0; result && file < files; line++, file++) {
4629 int almost_done = file * 100 / files;
4631 if (almost_done > done) {
4633 string_format(view->ref, "updating file %u of %u (%d%% done)",
4635 update_view_title(view);
4637 result = status_update_write(&io, line->data, line->type);
4645 status_update(struct view *view)
4647 struct line *line = &view->line[view->lineno];
4649 assert(view->lines);
4652 /* This should work even for the "On branch" line. */
4653 if (line < view->line + view->lines && !line[1].data) {
4654 report("Nothing to update");
4658 if (!status_update_files(view, line + 1)) {
4659 report("Failed to update file status");
4663 } else if (!status_update_file(line->data, line->type)) {
4664 report("Failed to update file status");
4672 status_revert(struct status *status, enum line_type type, bool has_none)
4674 if (!status || type != LINE_STAT_UNSTAGED) {
4675 if (type == LINE_STAT_STAGED) {
4676 report("Cannot revert changes to staged files");
4677 } else if (type == LINE_STAT_UNTRACKED) {
4678 report("Cannot revert changes to untracked files");
4679 } else if (has_none) {
4680 report("Nothing to revert");
4682 report("Cannot revert changes to multiple files");
4687 const char *checkout_argv[] = {
4688 "git", "checkout", "--", status->old.name, NULL
4691 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
4693 return run_io_fg(checkout_argv, opt_cdup);
4698 status_request(struct view *view, enum request request, struct line *line)
4700 struct status *status = line->data;
4703 case REQ_STATUS_UPDATE:
4704 if (!status_update(view))
4708 case REQ_STATUS_REVERT:
4709 if (!status_revert(status, line->type, status_has_none(view, line)))
4713 case REQ_STATUS_MERGE:
4714 if (!status || status->status != 'U') {
4715 report("Merging only possible for files with unmerged status ('U').");
4718 open_mergetool(status->new.name);
4724 if (status->status == 'D') {
4725 report("File has been deleted.");
4729 open_editor(status->status != '?', status->new.name);
4732 case REQ_VIEW_BLAME:
4734 string_copy(opt_file, status->new.name);
4740 /* After returning the status view has been split to
4741 * show the stage view. No further reloading is
4743 status_enter(view, line);
4747 /* Simply reload the view. */
4754 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4760 status_select(struct view *view, struct line *line)
4762 struct status *status = line->data;
4763 char file[SIZEOF_STR] = "all files";
4767 if (status && !string_format(file, "'%s'", status->new.name))
4770 if (!status && line[1].type == LINE_STAT_NONE)
4773 switch (line->type) {
4774 case LINE_STAT_STAGED:
4775 text = "Press %s to unstage %s for commit";
4778 case LINE_STAT_UNSTAGED:
4779 text = "Press %s to stage %s for commit";
4782 case LINE_STAT_UNTRACKED:
4783 text = "Press %s to stage %s for addition";
4786 case LINE_STAT_HEAD:
4787 case LINE_STAT_NONE:
4788 text = "Nothing to update";
4792 die("line type %d not handled in switch", line->type);
4795 if (status && status->status == 'U') {
4796 text = "Press %s to resolve conflict in %s";
4797 key = get_key(REQ_STATUS_MERGE);
4800 key = get_key(REQ_STATUS_UPDATE);
4803 string_format(view->ref, text, key, file);
4807 status_grep(struct view *view, struct line *line)
4809 struct status *status = line->data;
4810 enum { S_STATUS, S_NAME, S_END } state;
4817 for (state = S_STATUS; state < S_END; state++) {
4821 case S_NAME: text = status->new.name; break;
4823 buf[0] = status->status;
4831 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4838 static struct view_ops status_ops = {
4851 stage_diff_write(struct io *io, struct line *line, struct line *end)
4853 while (line < end) {
4854 if (!io_write(io, line->data, strlen(line->data)) ||
4855 !io_write(io, "\n", 1))
4858 if (line->type == LINE_DIFF_CHUNK ||
4859 line->type == LINE_DIFF_HEADER)
4866 static struct line *
4867 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4869 for (; view->line < line; line--)
4870 if (line->type == type)
4877 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
4879 const char *apply_argv[SIZEOF_ARG] = {
4880 "git", "apply", "--whitespace=nowarn", NULL
4882 struct line *diff_hdr;
4886 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4891 apply_argv[argc++] = "--cached";
4892 if (revert || stage_line_type == LINE_STAT_STAGED)
4893 apply_argv[argc++] = "-R";
4894 apply_argv[argc++] = "-";
4895 apply_argv[argc++] = NULL;
4896 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
4899 if (!stage_diff_write(&io, diff_hdr, chunk) ||
4900 !stage_diff_write(&io, chunk, view->line + view->lines))
4904 run_io_bg(update_index_argv);
4906 return chunk ? TRUE : FALSE;
4910 stage_update(struct view *view, struct line *line)
4912 struct line *chunk = NULL;
4914 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
4915 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4918 if (!stage_apply_chunk(view, chunk, FALSE)) {
4919 report("Failed to apply chunk");
4923 } else if (!stage_status.status) {
4924 view = VIEW(REQ_VIEW_STATUS);
4926 for (line = view->line; line < view->line + view->lines; line++)
4927 if (line->type == stage_line_type)
4930 if (!status_update_files(view, line + 1)) {
4931 report("Failed to update files");
4935 } else if (!status_update_file(&stage_status, stage_line_type)) {
4936 report("Failed to update file");
4944 stage_revert(struct view *view, struct line *line)
4946 struct line *chunk = NULL;
4948 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
4949 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4952 if (!prompt_yesno("Are you sure you want to revert changes?"))
4955 if (!stage_apply_chunk(view, chunk, TRUE)) {
4956 report("Failed to revert chunk");
4962 return status_revert(stage_status.status ? &stage_status : NULL,
4963 stage_line_type, FALSE);
4969 stage_next(struct view *view, struct line *line)
4973 if (!stage_chunks) {
4974 static size_t alloc = 0;
4977 for (line = view->line; line < view->line + view->lines; line++) {
4978 if (line->type != LINE_DIFF_CHUNK)
4981 tmp = realloc_items(stage_chunk, &alloc,
4982 stage_chunks, sizeof(*tmp));
4984 report("Allocation failure");
4989 stage_chunk[stage_chunks++] = line - view->line;
4993 for (i = 0; i < stage_chunks; i++) {
4994 if (stage_chunk[i] > view->lineno) {
4995 do_scroll_view(view, stage_chunk[i] - view->lineno);
4996 report("Chunk %d of %d", i + 1, stage_chunks);
5001 report("No next chunk found");
5005 stage_request(struct view *view, enum request request, struct line *line)
5008 case REQ_STATUS_UPDATE:
5009 if (!stage_update(view, line))
5013 case REQ_STATUS_REVERT:
5014 if (!stage_revert(view, line))
5018 case REQ_STAGE_NEXT:
5019 if (stage_line_type == LINE_STAT_UNTRACKED) {
5020 report("File is untracked; press %s to add",
5021 get_key(REQ_STATUS_UPDATE));
5024 stage_next(view, line);
5028 if (!stage_status.new.name[0])
5030 if (stage_status.status == 'D') {
5031 report("File has been deleted.");
5035 open_editor(stage_status.status != '?', stage_status.new.name);
5039 /* Reload everything ... */
5042 case REQ_VIEW_BLAME:
5043 if (stage_status.new.name[0]) {
5044 string_copy(opt_file, stage_status.new.name);
5050 return pager_request(view, request, line);
5056 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5058 /* Check whether the staged entry still exists, and close the
5059 * stage view if it doesn't. */
5060 if (!status_exists(&stage_status, stage_line_type))
5061 return REQ_VIEW_CLOSE;
5063 if (stage_line_type == LINE_STAT_UNTRACKED) {
5064 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5065 report("Cannot display a directory");
5069 if (!prepare_update_file(view, stage_status.new.name)) {
5070 report("Failed to open file: %s", strerror(errno));
5074 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5079 static struct view_ops stage_ops = {
5096 char id[SIZEOF_REV]; /* SHA1 ID. */
5097 char title[128]; /* First line of the commit message. */
5098 char author[75]; /* Author of the commit. */
5099 struct tm time; /* Date from the author ident. */
5100 struct ref **refs; /* Repository references. */
5101 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5102 size_t graph_size; /* The width of the graph array. */
5103 bool has_parents; /* Rewritten --parents seen. */
5106 /* Size of rev graph with no "padding" columns */
5107 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5110 struct rev_graph *prev, *next, *parents;
5111 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5113 struct commit *commit;
5115 unsigned int boundary:1;
5118 /* Parents of the commit being visualized. */
5119 static struct rev_graph graph_parents[4];
5121 /* The current stack of revisions on the graph. */
5122 static struct rev_graph graph_stacks[4] = {
5123 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5124 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5125 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5126 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5130 graph_parent_is_merge(struct rev_graph *graph)
5132 return graph->parents->size > 1;
5136 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5138 struct commit *commit = graph->commit;
5140 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5141 commit->graph[commit->graph_size++] = symbol;
5145 clear_rev_graph(struct rev_graph *graph)
5147 graph->boundary = 0;
5148 graph->size = graph->pos = 0;
5149 graph->commit = NULL;
5150 memset(graph->parents, 0, sizeof(*graph->parents));
5154 done_rev_graph(struct rev_graph *graph)
5156 if (graph_parent_is_merge(graph) &&
5157 graph->pos < graph->size - 1 &&
5158 graph->next->size == graph->size + graph->parents->size - 1) {
5159 size_t i = graph->pos + graph->parents->size - 1;
5161 graph->commit->graph_size = i * 2;
5162 while (i < graph->next->size - 1) {
5163 append_to_rev_graph(graph, ' ');
5164 append_to_rev_graph(graph, '\\');
5169 clear_rev_graph(graph);
5173 push_rev_graph(struct rev_graph *graph, const char *parent)
5177 /* "Collapse" duplicate parents lines.
5179 * FIXME: This needs to also update update the drawn graph but
5180 * for now it just serves as a method for pruning graph lines. */
5181 for (i = 0; i < graph->size; i++)
5182 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5185 if (graph->size < SIZEOF_REVITEMS) {
5186 string_copy_rev(graph->rev[graph->size++], parent);
5191 get_rev_graph_symbol(struct rev_graph *graph)
5195 if (graph->boundary)
5196 symbol = REVGRAPH_BOUND;
5197 else if (graph->parents->size == 0)
5198 symbol = REVGRAPH_INIT;
5199 else if (graph_parent_is_merge(graph))
5200 symbol = REVGRAPH_MERGE;
5201 else if (graph->pos >= graph->size)
5202 symbol = REVGRAPH_BRANCH;
5204 symbol = REVGRAPH_COMMIT;
5210 draw_rev_graph(struct rev_graph *graph)
5213 chtype separator, line;
5215 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5216 static struct rev_filler fillers[] = {
5222 chtype symbol = get_rev_graph_symbol(graph);
5223 struct rev_filler *filler;
5226 if (opt_line_graphics)
5227 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5229 filler = &fillers[DEFAULT];
5231 for (i = 0; i < graph->pos; i++) {
5232 append_to_rev_graph(graph, filler->line);
5233 if (graph_parent_is_merge(graph->prev) &&
5234 graph->prev->pos == i)
5235 filler = &fillers[RSHARP];
5237 append_to_rev_graph(graph, filler->separator);
5240 /* Place the symbol for this revision. */
5241 append_to_rev_graph(graph, symbol);
5243 if (graph->prev->size > graph->size)
5244 filler = &fillers[RDIAG];
5246 filler = &fillers[DEFAULT];
5250 for (; i < graph->size; i++) {
5251 append_to_rev_graph(graph, filler->separator);
5252 append_to_rev_graph(graph, filler->line);
5253 if (graph_parent_is_merge(graph->prev) &&
5254 i < graph->prev->pos + graph->parents->size)
5255 filler = &fillers[RSHARP];
5256 if (graph->prev->size > graph->size)
5257 filler = &fillers[LDIAG];
5260 if (graph->prev->size > graph->size) {
5261 append_to_rev_graph(graph, filler->separator);
5262 if (filler->line != ' ')
5263 append_to_rev_graph(graph, filler->line);
5267 /* Prepare the next rev graph */
5269 prepare_rev_graph(struct rev_graph *graph)
5273 /* First, traverse all lines of revisions up to the active one. */
5274 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5275 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5278 push_rev_graph(graph->next, graph->rev[graph->pos]);
5281 /* Interleave the new revision parent(s). */
5282 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5283 push_rev_graph(graph->next, graph->parents->rev[i]);
5285 /* Lastly, put any remaining revisions. */
5286 for (i = graph->pos + 1; i < graph->size; i++)
5287 push_rev_graph(graph->next, graph->rev[i]);
5291 update_rev_graph(struct view *view, struct rev_graph *graph)
5293 /* If this is the finalizing update ... */
5295 prepare_rev_graph(graph);
5297 /* Graph visualization needs a one rev look-ahead,
5298 * so the first update doesn't visualize anything. */
5299 if (!graph->prev->commit)
5302 if (view->lines > 2)
5303 view->line[view->lines - 3].dirty = 1;
5304 if (view->lines > 1)
5305 view->line[view->lines - 2].dirty = 1;
5306 draw_rev_graph(graph->prev);
5307 done_rev_graph(graph->prev->prev);
5315 static const char *main_argv[SIZEOF_ARG] = {
5316 "git", "log", "--no-color", "--pretty=raw", "--parents",
5317 "--topo-order", "%(head)", NULL
5321 main_draw(struct view *view, struct line *line, unsigned int lineno)
5323 struct commit *commit = line->data;
5325 if (!*commit->author)
5328 if (opt_date && draw_date(view, &commit->time))
5332 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5335 if (opt_rev_graph && commit->graph_size &&
5336 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5339 if (opt_show_refs && commit->refs) {
5343 enum line_type type;
5345 if (commit->refs[i]->head)
5346 type = LINE_MAIN_HEAD;
5347 else if (commit->refs[i]->ltag)
5348 type = LINE_MAIN_LOCAL_TAG;
5349 else if (commit->refs[i]->tag)
5350 type = LINE_MAIN_TAG;
5351 else if (commit->refs[i]->tracked)
5352 type = LINE_MAIN_TRACKED;
5353 else if (commit->refs[i]->remote)
5354 type = LINE_MAIN_REMOTE;
5356 type = LINE_MAIN_REF;
5358 if (draw_text(view, type, "[", TRUE) ||
5359 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5360 draw_text(view, type, "]", TRUE))
5363 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5365 } while (commit->refs[i++]->next);
5368 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5372 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5374 main_read(struct view *view, char *line)
5376 static struct rev_graph *graph = graph_stacks;
5377 enum line_type type;
5378 struct commit *commit;
5383 if (!view->lines && !view->parent)
5384 die("No revisions match the given arguments.");
5385 if (view->lines > 0) {
5386 commit = view->line[view->lines - 1].data;
5387 if (!*commit->author) {
5390 graph->commit = NULL;
5393 update_rev_graph(view, graph);
5395 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5396 clear_rev_graph(&graph_stacks[i]);
5400 type = get_line_type(line);
5401 if (type == LINE_COMMIT) {
5402 commit = calloc(1, sizeof(struct commit));
5406 line += STRING_SIZE("commit ");
5408 graph->boundary = 1;
5412 string_copy_rev(commit->id, line);
5413 commit->refs = get_refs(commit->id);
5414 graph->commit = commit;
5415 add_line_data(view, commit, LINE_MAIN_COMMIT);
5417 while ((line = strchr(line, ' '))) {
5419 push_rev_graph(graph->parents, line);
5420 commit->has_parents = TRUE;
5427 commit = view->line[view->lines - 1].data;
5431 if (commit->has_parents)
5433 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5438 /* Parse author lines where the name may be empty:
5439 * author <email@address.tld> 1138474660 +0100
5441 char *ident = line + STRING_SIZE("author ");
5442 char *nameend = strchr(ident, '<');
5443 char *emailend = strchr(ident, '>');
5445 if (!nameend || !emailend)
5448 update_rev_graph(view, graph);
5449 graph = graph->next;
5451 *nameend = *emailend = 0;
5452 ident = chomp_string(ident);
5454 ident = chomp_string(nameend + 1);
5459 string_ncopy(commit->author, ident, strlen(ident));
5460 view->line[view->lines - 1].dirty = 1;
5462 /* Parse epoch and timezone */
5463 if (emailend[1] == ' ') {
5464 char *secs = emailend + 2;
5465 char *zone = strchr(secs, ' ');
5466 time_t time = (time_t) atol(secs);
5468 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5472 tz = ('0' - zone[1]) * 60 * 60 * 10;
5473 tz += ('0' - zone[2]) * 60 * 60;
5474 tz += ('0' - zone[3]) * 60;
5475 tz += ('0' - zone[4]) * 60;
5483 gmtime_r(&time, &commit->time);
5488 /* Fill in the commit title if it has not already been set. */
5489 if (commit->title[0])
5492 /* Require titles to start with a non-space character at the
5493 * offset used by git log. */
5494 if (strncmp(line, " ", 4))
5497 /* Well, if the title starts with a whitespace character,
5498 * try to be forgiving. Otherwise we end up with no title. */
5499 while (isspace(*line))
5503 /* FIXME: More graceful handling of titles; append "..." to
5504 * shortened titles, etc. */
5506 string_ncopy(commit->title, line, strlen(line));
5507 view->line[view->lines - 1].dirty = 1;
5514 main_request(struct view *view, enum request request, struct line *line)
5516 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5520 open_view(view, REQ_VIEW_DIFF, flags);
5524 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5534 grep_refs(struct ref **refs, regex_t *regex)
5542 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5544 } while (refs[i++]->next);
5550 main_grep(struct view *view, struct line *line)
5552 struct commit *commit = line->data;
5553 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5554 char buf[DATE_COLS + 1];
5557 for (state = S_TITLE; state < S_END; state++) {
5561 case S_TITLE: text = commit->title; break;
5565 text = commit->author;
5570 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5577 if (grep_refs(commit->refs, view->regex) == TRUE)
5584 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5592 main_select(struct view *view, struct line *line)
5594 struct commit *commit = line->data;
5596 string_copy_rev(view->ref, commit->id);
5597 string_copy_rev(ref_commit, view->ref);
5600 static struct view_ops main_ops = {
5613 * Unicode / UTF-8 handling
5615 * NOTE: Much of the following code for dealing with unicode is derived from
5616 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5617 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5620 /* I've (over)annotated a lot of code snippets because I am not entirely
5621 * confident that the approach taken by this small UTF-8 interface is correct.
5625 unicode_width(unsigned long c)
5628 (c <= 0x115f /* Hangul Jamo */
5631 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5633 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5634 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5635 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5636 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5637 || (c >= 0xffe0 && c <= 0xffe6)
5638 || (c >= 0x20000 && c <= 0x2fffd)
5639 || (c >= 0x30000 && c <= 0x3fffd)))
5643 return opt_tab_size;
5648 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5649 * Illegal bytes are set one. */
5650 static const unsigned char utf8_bytes[256] = {
5651 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,
5652 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,
5653 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,
5654 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,
5655 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,
5656 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,
5657 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,
5658 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,
5661 /* Decode UTF-8 multi-byte representation into a unicode character. */
5662 static inline unsigned long
5663 utf8_to_unicode(const char *string, size_t length)
5665 unsigned long unicode;
5669 unicode = string[0];
5672 unicode = (string[0] & 0x1f) << 6;
5673 unicode += (string[1] & 0x3f);
5676 unicode = (string[0] & 0x0f) << 12;
5677 unicode += ((string[1] & 0x3f) << 6);
5678 unicode += (string[2] & 0x3f);
5681 unicode = (string[0] & 0x0f) << 18;
5682 unicode += ((string[1] & 0x3f) << 12);
5683 unicode += ((string[2] & 0x3f) << 6);
5684 unicode += (string[3] & 0x3f);
5687 unicode = (string[0] & 0x0f) << 24;
5688 unicode += ((string[1] & 0x3f) << 18);
5689 unicode += ((string[2] & 0x3f) << 12);
5690 unicode += ((string[3] & 0x3f) << 6);
5691 unicode += (string[4] & 0x3f);
5694 unicode = (string[0] & 0x01) << 30;
5695 unicode += ((string[1] & 0x3f) << 24);
5696 unicode += ((string[2] & 0x3f) << 18);
5697 unicode += ((string[3] & 0x3f) << 12);
5698 unicode += ((string[4] & 0x3f) << 6);
5699 unicode += (string[5] & 0x3f);
5702 die("Invalid unicode length");
5705 /* Invalid characters could return the special 0xfffd value but NUL
5706 * should be just as good. */
5707 return unicode > 0xffff ? 0 : unicode;
5710 /* Calculates how much of string can be shown within the given maximum width
5711 * and sets trimmed parameter to non-zero value if all of string could not be
5712 * shown. If the reserve flag is TRUE, it will reserve at least one
5713 * trailing character, which can be useful when drawing a delimiter.
5715 * Returns the number of bytes to output from string to satisfy max_width. */
5717 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5719 const char *start = string;
5720 const char *end = strchr(string, '\0');
5721 unsigned char last_bytes = 0;
5722 size_t last_ucwidth = 0;
5727 while (string < end) {
5728 int c = *(unsigned char *) string;
5729 unsigned char bytes = utf8_bytes[c];
5731 unsigned long unicode;
5733 if (string + bytes > end)
5736 /* Change representation to figure out whether
5737 * it is a single- or double-width character. */
5739 unicode = utf8_to_unicode(string, bytes);
5740 /* FIXME: Graceful handling of invalid unicode character. */
5744 ucwidth = unicode_width(unicode);
5746 if (*width > max_width) {
5749 if (reserve && *width == max_width) {
5750 string -= last_bytes;
5751 *width -= last_ucwidth;
5758 last_ucwidth = ucwidth;
5761 return string - start;
5769 /* Whether or not the curses interface has been initialized. */
5770 static bool cursed = FALSE;
5772 /* The status window is used for polling keystrokes. */
5773 static WINDOW *status_win;
5775 static bool status_empty = TRUE;
5777 /* Update status and title window. */
5779 report(const char *msg, ...)
5781 struct view *view = display[current_view];
5787 char buf[SIZEOF_STR];
5790 va_start(args, msg);
5791 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5792 buf[sizeof(buf) - 1] = 0;
5793 buf[sizeof(buf) - 2] = '.';
5794 buf[sizeof(buf) - 3] = '.';
5795 buf[sizeof(buf) - 4] = '.';
5801 if (!status_empty || *msg) {
5804 va_start(args, msg);
5806 wmove(status_win, 0, 0);
5808 vwprintw(status_win, msg, args);
5809 status_empty = FALSE;
5811 status_empty = TRUE;
5813 wclrtoeol(status_win);
5814 wrefresh(status_win);
5819 update_view_title(view);
5820 update_display_cursor(view);
5823 /* Controls when nodelay should be in effect when polling user input. */
5825 set_nonblocking_input(bool loading)
5827 static unsigned int loading_views;
5829 if ((loading == FALSE && loading_views-- == 1) ||
5830 (loading == TRUE && loading_views++ == 0))
5831 nodelay(status_win, loading);
5839 /* Initialize the curses library */
5840 if (isatty(STDIN_FILENO)) {
5841 cursed = !!initscr();
5844 /* Leave stdin and stdout alone when acting as a pager. */
5845 opt_tty = fopen("/dev/tty", "r+");
5847 die("Failed to open /dev/tty");
5848 cursed = !!newterm(NULL, opt_tty, opt_tty);
5852 die("Failed to initialize curses");
5854 nonl(); /* Tell curses not to do NL->CR/NL on output */
5855 cbreak(); /* Take input chars one at a time, no wait for \n */
5856 noecho(); /* Don't echo input */
5857 leaveok(stdscr, TRUE);
5862 getmaxyx(stdscr, y, x);
5863 status_win = newwin(1, 0, y - 1, 0);
5865 die("Failed to create status window");
5867 /* Enable keyboard mapping */
5868 keypad(status_win, TRUE);
5869 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5871 TABSIZE = opt_tab_size;
5872 if (opt_line_graphics) {
5873 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5878 prompt_yesno(const char *prompt)
5880 enum { WAIT, STOP, CANCEL } status = WAIT;
5881 bool answer = FALSE;
5883 while (status == WAIT) {
5889 foreach_view (view, i)
5894 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
5895 wclrtoeol(status_win);
5897 /* Refresh, accept single keystroke of input */
5898 key = wgetch(status_win);
5922 /* Clear the status window */
5923 status_empty = FALSE;
5930 read_prompt(const char *prompt)
5932 enum { READING, STOP, CANCEL } status = READING;
5933 static char buf[SIZEOF_STR];
5936 while (status == READING) {
5942 foreach_view (view, i)
5947 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5948 wclrtoeol(status_win);
5950 /* Refresh, accept single keystroke of input */
5951 key = wgetch(status_win);
5956 status = pos ? STOP : CANCEL;
5974 if (pos >= sizeof(buf)) {
5975 report("Input string too long");
5980 buf[pos++] = (char) key;
5984 /* Clear the status window */
5985 status_empty = FALSE;
5988 if (status == CANCEL)
5997 * Repository properties
6001 git_properties(const char **argv, const char *separators,
6002 int (*read_property)(char *, size_t, char *, size_t))
6006 if (init_io_rd(&io, argv, NULL, FORMAT_NONE))
6007 return read_properties(&io, separators, read_property);
6011 static struct ref *refs = NULL;
6012 static size_t refs_alloc = 0;
6013 static size_t refs_size = 0;
6015 /* Id <-> ref store */
6016 static struct ref ***id_refs = NULL;
6017 static size_t id_refs_alloc = 0;
6018 static size_t id_refs_size = 0;
6021 compare_refs(const void *ref1_, const void *ref2_)
6023 const struct ref *ref1 = *(const struct ref **)ref1_;
6024 const struct ref *ref2 = *(const struct ref **)ref2_;
6026 if (ref1->tag != ref2->tag)
6027 return ref2->tag - ref1->tag;
6028 if (ref1->ltag != ref2->ltag)
6029 return ref2->ltag - ref2->ltag;
6030 if (ref1->head != ref2->head)
6031 return ref2->head - ref1->head;
6032 if (ref1->tracked != ref2->tracked)
6033 return ref2->tracked - ref1->tracked;
6034 if (ref1->remote != ref2->remote)
6035 return ref2->remote - ref1->remote;
6036 return strcmp(ref1->name, ref2->name);
6039 static struct ref **
6040 get_refs(const char *id)
6042 struct ref ***tmp_id_refs;
6043 struct ref **ref_list = NULL;
6044 size_t ref_list_alloc = 0;
6045 size_t ref_list_size = 0;
6048 for (i = 0; i < id_refs_size; i++)
6049 if (!strcmp(id, id_refs[i][0]->id))
6052 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6057 id_refs = tmp_id_refs;
6059 for (i = 0; i < refs_size; i++) {
6062 if (strcmp(id, refs[i].id))
6065 tmp = realloc_items(ref_list, &ref_list_alloc,
6066 ref_list_size + 1, sizeof(*ref_list));
6074 ref_list[ref_list_size] = &refs[i];
6075 /* XXX: The properties of the commit chains ensures that we can
6076 * safely modify the shared ref. The repo references will
6077 * always be similar for the same id. */
6078 ref_list[ref_list_size]->next = 1;
6084 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6085 ref_list[ref_list_size - 1]->next = 0;
6086 id_refs[id_refs_size++] = ref_list;
6093 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6098 bool remote = FALSE;
6099 bool tracked = FALSE;
6100 bool check_replace = FALSE;
6103 if (!prefixcmp(name, "refs/tags/")) {
6104 if (!suffixcmp(name, namelen, "^{}")) {
6107 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6108 check_replace = TRUE;
6114 namelen -= STRING_SIZE("refs/tags/");
6115 name += STRING_SIZE("refs/tags/");
6117 } else if (!prefixcmp(name, "refs/remotes/")) {
6119 namelen -= STRING_SIZE("refs/remotes/");
6120 name += STRING_SIZE("refs/remotes/");
6121 tracked = !strcmp(opt_remote, name);
6123 } else if (!prefixcmp(name, "refs/heads/")) {
6124 namelen -= STRING_SIZE("refs/heads/");
6125 name += STRING_SIZE("refs/heads/");
6126 head = !strncmp(opt_head, name, namelen);
6128 } else if (!strcmp(name, "HEAD")) {
6129 string_ncopy(opt_head_rev, id, idlen);
6133 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6134 /* it's an annotated tag, replace the previous sha1 with the
6135 * resolved commit id; relies on the fact git-ls-remote lists
6136 * the commit id of an annotated tag right before the commit id
6138 refs[refs_size - 1].ltag = ltag;
6139 string_copy_rev(refs[refs_size - 1].id, id);
6143 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6147 ref = &refs[refs_size++];
6148 ref->name = malloc(namelen + 1);
6152 strncpy(ref->name, name, namelen);
6153 ref->name[namelen] = 0;
6157 ref->remote = remote;
6158 ref->tracked = tracked;
6159 string_copy_rev(ref->id, id);
6167 static const char *ls_remote_argv[SIZEOF_ARG] = {
6168 "git", "ls-remote", ".", NULL
6170 static bool init = FALSE;
6173 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6180 while (refs_size > 0)
6181 free(refs[--refs_size].name);
6182 while (id_refs_size > 0)
6183 free(id_refs[--id_refs_size]);
6185 return git_properties(ls_remote_argv, "\t", read_ref);
6189 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6191 if (!strcmp(name, "i18n.commitencoding"))
6192 string_ncopy(opt_encoding, value, valuelen);
6194 if (!strcmp(name, "core.editor"))
6195 string_ncopy(opt_editor, value, valuelen);
6197 /* branch.<head>.remote */
6199 !strncmp(name, "branch.", 7) &&
6200 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6201 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6202 string_ncopy(opt_remote, value, valuelen);
6204 if (*opt_head && *opt_remote &&
6205 !strncmp(name, "branch.", 7) &&
6206 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6207 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6208 size_t from = strlen(opt_remote);
6210 if (!prefixcmp(value, "refs/heads/")) {
6211 value += STRING_SIZE("refs/heads/");
6212 valuelen -= STRING_SIZE("refs/heads/");
6215 if (!string_format_from(opt_remote, &from, "/%s", value))
6223 load_git_config(void)
6225 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6227 return git_properties(config_list_argv, "=", read_repo_config_option);
6231 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6233 if (!opt_git_dir[0]) {
6234 string_ncopy(opt_git_dir, name, namelen);
6236 } else if (opt_is_inside_work_tree == -1) {
6237 /* This can be 3 different values depending on the
6238 * version of git being used. If git-rev-parse does not
6239 * understand --is-inside-work-tree it will simply echo
6240 * the option else either "true" or "false" is printed.
6241 * Default to true for the unknown case. */
6242 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6244 string_ncopy(opt_cdup, name, namelen);
6251 load_repo_info(void)
6253 const char *head_argv[] = {
6254 "git", "symbolic-ref", "HEAD", NULL
6256 const char *rev_parse_argv[] = {
6257 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6261 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6262 chomp_string(opt_head);
6263 if (!prefixcmp(opt_head, "refs/heads/")) {
6264 char *offset = opt_head + STRING_SIZE("refs/heads/");
6266 memmove(opt_head, offset, strlen(offset) + 1);
6270 return git_properties(rev_parse_argv, "=", read_repo_info);
6274 read_properties(struct io *io, const char *separators,
6275 int (*read_property)(char *, size_t, char *, size_t))
6283 while (state == OK && (name = io_get(io, '\n', TRUE))) {
6288 name = chomp_string(name);
6289 namelen = strcspn(name, separators);
6291 if (name[namelen]) {
6293 value = chomp_string(name + namelen + 1);
6294 valuelen = strlen(value);
6301 state = read_property(name, namelen, value, valuelen);
6304 if (state != ERR && io_error(io))
6316 static void __NORETURN
6319 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6325 static void __NORETURN
6326 die(const char *err, ...)
6332 va_start(args, err);
6333 fputs("tig: ", stderr);
6334 vfprintf(stderr, err, args);
6335 fputs("\n", stderr);
6342 warn(const char *msg, ...)
6346 va_start(args, msg);
6347 fputs("tig warning: ", stderr);
6348 vfprintf(stderr, msg, args);
6349 fputs("\n", stderr);
6354 main(int argc, const char *argv[])
6356 const char **run_argv = NULL;
6358 enum request request;
6361 signal(SIGINT, quit);
6363 if (setlocale(LC_ALL, "")) {
6364 char *codeset = nl_langinfo(CODESET);
6366 string_ncopy(opt_codeset, codeset, strlen(codeset));
6369 if (load_repo_info() == ERR)
6370 die("Failed to load repo info.");
6372 if (load_options() == ERR)
6373 die("Failed to load user config.");
6375 if (load_git_config() == ERR)
6376 die("Failed to load repo config.");
6378 request = parse_options(argc, argv, &run_argv);
6379 if (request == REQ_NONE)
6382 /* Require a git repository unless when running in pager mode. */
6383 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6384 die("Not a git repository");
6386 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6389 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6390 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6391 if (opt_iconv == ICONV_NONE)
6392 die("Failed to initialize character set conversion");
6395 if (load_refs() == ERR)
6396 die("Failed to load refs.");
6398 foreach_view (view, i)
6399 argv_from_env(view->ops->argv, view->cmd_env);
6403 if (request == REQ_VIEW_PAGER || run_argv) {
6404 if (request == REQ_VIEW_PAGER)
6405 io_open(&VIEW(request)->io, "");
6406 else if (!prepare_update(VIEW(request), run_argv, NULL, FORMAT_NONE))
6407 die("Failed to format arguments");
6408 open_view(NULL, request, OPEN_PREPARED);
6412 while (view_driver(display[current_view], request)) {
6416 foreach_view (view, i)
6418 view = display[current_view];
6420 /* Refresh, accept single keystroke of input */
6421 key = wgetch(status_win);
6423 /* wgetch() with nodelay() enabled returns ERR when there's no
6430 request = get_keybinding(view->keymap, key);
6432 /* Some low-level request handling. This keeps access to
6433 * status_win restricted. */
6437 char *cmd = read_prompt(":");
6440 struct view *next = VIEW(REQ_VIEW_PAGER);
6441 const char *argv[SIZEOF_ARG] = { "git" };
6444 /* When running random commands, initially show the
6445 * command in the title. However, it maybe later be
6446 * overwritten if a commit line is selected. */
6447 string_ncopy(next->ref, cmd, strlen(cmd));
6449 if (!argv_from_string(argv, &argc, cmd)) {
6450 report("Too many arguments");
6451 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6452 report("Failed to format command");
6454 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6462 case REQ_SEARCH_BACK:
6464 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6465 char *search = read_prompt(prompt);
6468 string_ncopy(opt_search, search, strlen(search));
6473 case REQ_SCREEN_RESIZE:
6477 getmaxyx(stdscr, height, width);
6479 /* Resize the status view and let the view driver take
6480 * care of resizing the displayed views. */
6481 wresize(status_win, 1, width);
6482 mvwin(status_win, height - 1, 0);
6483 wrefresh(status_win);