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(bool clear)
2175 foreach_displayed_view (view, i) {
2179 update_view_title(view);
2184 update_display_cursor(struct view *view)
2186 /* Move the cursor to the right-most column of the cursor line.
2188 * XXX: This could turn out to be a bit expensive, but it ensures that
2189 * the cursor does not jump around. */
2191 wmove(view->win, view->lineno - view->offset, view->width - 1);
2192 wrefresh(view->win);
2197 toggle_view_option(bool *option, const char *help)
2200 redraw_display(FALSE);
2201 report("%sabling %s", *option ? "En" : "Dis", help);
2208 /* Scrolling backend */
2210 do_scroll_view(struct view *view, int lines)
2212 bool redraw_current_line = FALSE;
2214 /* The rendering expects the new offset. */
2215 view->offset += lines;
2217 assert(0 <= view->offset && view->offset < view->lines);
2220 /* Move current line into the view. */
2221 if (view->lineno < view->offset) {
2222 view->lineno = view->offset;
2223 redraw_current_line = TRUE;
2224 } else if (view->lineno >= view->offset + view->height) {
2225 view->lineno = view->offset + view->height - 1;
2226 redraw_current_line = TRUE;
2229 assert(view->offset <= view->lineno && view->lineno < view->lines);
2231 /* Redraw the whole screen if scrolling is pointless. */
2232 if (view->height < ABS(lines)) {
2236 int line = lines > 0 ? view->height - lines : 0;
2237 int end = line + ABS(lines);
2239 wscrl(view->win, lines);
2241 for (; line < end; line++) {
2242 if (!draw_view_line(view, line))
2246 if (redraw_current_line)
2247 draw_view_line(view, view->lineno - view->offset);
2250 redrawwin(view->win);
2251 wrefresh(view->win);
2255 /* Scroll frontend */
2257 scroll_view(struct view *view, enum request request)
2261 assert(view_is_displayed(view));
2264 case REQ_SCROLL_PAGE_DOWN:
2265 lines = view->height;
2266 case REQ_SCROLL_LINE_DOWN:
2267 if (view->offset + lines > view->lines)
2268 lines = view->lines - view->offset;
2270 if (lines == 0 || view->offset + view->height >= view->lines) {
2271 report("Cannot scroll beyond the last line");
2276 case REQ_SCROLL_PAGE_UP:
2277 lines = view->height;
2278 case REQ_SCROLL_LINE_UP:
2279 if (lines > view->offset)
2280 lines = view->offset;
2283 report("Cannot scroll beyond the first line");
2291 die("request %d not handled in switch", request);
2294 do_scroll_view(view, lines);
2299 move_view(struct view *view, enum request request)
2301 int scroll_steps = 0;
2305 case REQ_MOVE_FIRST_LINE:
2306 steps = -view->lineno;
2309 case REQ_MOVE_LAST_LINE:
2310 steps = view->lines - view->lineno - 1;
2313 case REQ_MOVE_PAGE_UP:
2314 steps = view->height > view->lineno
2315 ? -view->lineno : -view->height;
2318 case REQ_MOVE_PAGE_DOWN:
2319 steps = view->lineno + view->height >= view->lines
2320 ? view->lines - view->lineno - 1 : view->height;
2332 die("request %d not handled in switch", request);
2335 if (steps <= 0 && view->lineno == 0) {
2336 report("Cannot move beyond the first line");
2339 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2340 report("Cannot move beyond the last line");
2344 /* Move the current line */
2345 view->lineno += steps;
2346 assert(0 <= view->lineno && view->lineno < view->lines);
2348 /* Check whether the view needs to be scrolled */
2349 if (view->lineno < view->offset ||
2350 view->lineno >= view->offset + view->height) {
2351 scroll_steps = steps;
2352 if (steps < 0 && -steps > view->offset) {
2353 scroll_steps = -view->offset;
2355 } else if (steps > 0) {
2356 if (view->lineno == view->lines - 1 &&
2357 view->lines > view->height) {
2358 scroll_steps = view->lines - view->offset - 1;
2359 if (scroll_steps >= view->height)
2360 scroll_steps -= view->height - 1;
2365 if (!view_is_displayed(view)) {
2366 view->offset += scroll_steps;
2367 assert(0 <= view->offset && view->offset < view->lines);
2368 view->ops->select(view, &view->line[view->lineno]);
2372 /* Repaint the old "current" line if we be scrolling */
2373 if (ABS(steps) < view->height)
2374 draw_view_line(view, view->lineno - steps - view->offset);
2377 do_scroll_view(view, scroll_steps);
2381 /* Draw the current line */
2382 draw_view_line(view, view->lineno - view->offset);
2384 redrawwin(view->win);
2385 wrefresh(view->win);
2394 static void search_view(struct view *view, enum request request);
2397 find_next_line(struct view *view, unsigned long lineno, struct line *line)
2399 assert(view_is_displayed(view));
2401 if (!view->ops->grep(view, line))
2404 if (lineno - view->offset >= view->height) {
2405 view->offset = lineno;
2406 view->lineno = lineno;
2410 unsigned long old_lineno = view->lineno - view->offset;
2412 view->lineno = lineno;
2413 draw_view_line(view, old_lineno);
2415 draw_view_line(view, view->lineno - view->offset);
2416 redrawwin(view->win);
2417 wrefresh(view->win);
2420 report("Line %ld matches '%s'", lineno + 1, view->grep);
2425 find_next(struct view *view, enum request request)
2427 unsigned long lineno = view->lineno;
2432 report("No previous search");
2434 search_view(view, request);
2444 case REQ_SEARCH_BACK:
2453 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2454 lineno += direction;
2456 /* Note, lineno is unsigned long so will wrap around in which case it
2457 * will become bigger than view->lines. */
2458 for (; lineno < view->lines; lineno += direction) {
2459 struct line *line = &view->line[lineno];
2461 if (find_next_line(view, lineno, line))
2465 report("No match found for '%s'", view->grep);
2469 search_view(struct view *view, enum request request)
2474 regfree(view->regex);
2477 view->regex = calloc(1, sizeof(*view->regex));
2482 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2483 if (regex_err != 0) {
2484 char buf[SIZEOF_STR] = "unknown error";
2486 regerror(regex_err, view->regex, buf, sizeof(buf));
2487 report("Search failed: %s", buf);
2491 string_copy(view->grep, opt_search);
2493 find_next(view, request);
2497 * Incremental updating
2501 reset_view(struct view *view)
2505 for (i = 0; i < view->lines; i++)
2506 free(view->line[i].data);
2513 view->line_alloc = 0;
2515 view->update_secs = 0;
2519 free_argv(const char *argv[])
2523 for (argc = 0; argv[argc]; argc++)
2524 free((void *) argv[argc]);
2528 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2530 char buf[SIZEOF_STR];
2532 bool noreplace = flags == FORMAT_NONE;
2534 free_argv(dst_argv);
2536 for (argc = 0; src_argv[argc]; argc++) {
2537 const char *arg = src_argv[argc];
2541 char *next = strstr(arg, "%(");
2542 int len = next - arg;
2545 if (!next || noreplace) {
2546 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2551 } else if (!prefixcmp(next, "%(directory)")) {
2554 } else if (!prefixcmp(next, "%(file)")) {
2557 } else if (!prefixcmp(next, "%(ref)")) {
2558 value = *opt_ref ? opt_ref : "HEAD";
2560 } else if (!prefixcmp(next, "%(head)")) {
2563 } else if (!prefixcmp(next, "%(commit)")) {
2566 } else if (!prefixcmp(next, "%(blob)")) {
2570 report("Unknown replacement: `%s`", next);
2574 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2577 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2580 dst_argv[argc] = strdup(buf);
2581 if (!dst_argv[argc])
2585 dst_argv[argc] = NULL;
2587 return src_argv[argc] == NULL;
2591 end_update(struct view *view, bool force)
2595 while (!view->ops->read(view, NULL))
2598 set_nonblocking_input(FALSE);
2600 kill_io(view->pipe);
2601 done_io(view->pipe);
2606 setup_update(struct view *view, const char *vid)
2608 set_nonblocking_input(TRUE);
2610 string_copy_rev(view->vid, vid);
2611 view->pipe = &view->io;
2612 view->start_time = time(NULL);
2616 prepare_update(struct view *view, const char *argv[], const char *dir,
2617 enum format_flags flags)
2620 end_update(view, TRUE);
2621 return init_io_rd(&view->io, argv, dir, flags);
2625 prepare_update_file(struct view *view, const char *name)
2628 end_update(view, TRUE);
2629 return io_open(&view->io, name);
2633 begin_update(struct view *view, bool refresh)
2636 end_update(view, TRUE);
2639 if (!start_io(&view->io))
2643 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2646 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2649 /* Put the current ref_* value to the view title ref
2650 * member. This is needed by the blob view. Most other
2651 * views sets it automatically after loading because the
2652 * first line is a commit line. */
2653 string_copy_rev(view->ref, view->id);
2656 setup_update(view, view->id);
2661 #define ITEM_CHUNK_SIZE 256
2663 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2665 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2666 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2668 if (mem == NULL || num_chunks != num_chunks_new) {
2669 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2670 mem = realloc(mem, *size * item_size);
2676 static struct line *
2677 realloc_lines(struct view *view, size_t line_size)
2679 size_t alloc = view->line_alloc;
2680 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2681 sizeof(*view->line));
2687 view->line_alloc = alloc;
2692 update_view(struct view *view)
2694 char out_buffer[BUFSIZ * 2];
2696 /* Clear the view and redraw everything since the tree sorting
2697 * might have rearranged things. */
2698 bool redraw = view->lines == 0;
2699 bool can_read = TRUE;
2704 if (!io_can_read(view->pipe)) {
2705 if (view->lines == 0) {
2706 time_t secs = time(NULL) - view->start_time;
2708 if (secs > view->update_secs) {
2709 if (view->update_secs == 0)
2711 update_view_title(view);
2712 view->update_secs = secs;
2718 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2719 if (opt_iconv != ICONV_NONE) {
2720 ICONV_CONST char *inbuf = line;
2721 size_t inlen = strlen(line) + 1;
2723 char *outbuf = out_buffer;
2724 size_t outlen = sizeof(out_buffer);
2728 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2729 if (ret != (size_t) -1)
2733 if (!view->ops->read(view, line))
2738 unsigned long lines = view->lines;
2741 for (digits = 0; lines; digits++)
2744 /* Keep the displayed view in sync with line number scaling. */
2745 if (digits != view->digits) {
2746 view->digits = digits;
2747 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2752 if (io_error(view->pipe)) {
2753 report("Failed to read: %s", io_strerror(view->pipe));
2754 end_update(view, TRUE);
2756 } else if (io_eof(view->pipe)) {
2758 end_update(view, FALSE);
2761 if (!view_is_displayed(view))
2765 redraw_view_from(view, 0);
2767 redraw_view_dirty(view);
2769 /* Update the title _after_ the redraw so that if the redraw picks up a
2770 * commit reference in view->ref it'll be available here. */
2771 update_view_title(view);
2775 report("Allocation failure");
2776 end_update(view, TRUE);
2780 static struct line *
2781 add_line_data(struct view *view, void *data, enum line_type type)
2785 if (!realloc_lines(view, view->lines + 1))
2788 line = &view->line[view->lines++];
2789 memset(line, 0, sizeof(*line));
2797 static struct line *
2798 add_line_text(struct view *view, const char *text, enum line_type type)
2800 char *data = text ? strdup(text) : NULL;
2802 return data ? add_line_data(view, data, type) : NULL;
2805 static struct line *
2806 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2808 char buf[SIZEOF_STR];
2811 va_start(args, fmt);
2812 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2816 return buf[0] ? add_line_text(view, buf, type) : NULL;
2824 OPEN_DEFAULT = 0, /* Use default view switching. */
2825 OPEN_SPLIT = 1, /* Split current view. */
2826 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2827 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2828 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2829 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2830 OPEN_PREPARED = 32, /* Open already prepared command. */
2834 open_view(struct view *prev, enum request request, enum open_flags flags)
2836 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2837 bool split = !!(flags & OPEN_SPLIT);
2838 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2839 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2840 struct view *view = VIEW(request);
2841 int nviews = displayed_views();
2842 struct view *base_view = display[0];
2844 if (view == prev && nviews == 1 && !reload) {
2845 report("Already in %s view", view->name);
2849 if (view->git_dir && !opt_git_dir[0]) {
2850 report("The %s view is disabled in pager view", view->name);
2858 } else if (!nomaximize) {
2859 /* Maximize the current view. */
2860 memset(display, 0, sizeof(display));
2862 display[current_view] = view;
2865 /* Resize the view when switching between split- and full-screen,
2866 * or when switching between two different full-screen views. */
2867 if (nviews != displayed_views() ||
2868 (nviews == 1 && base_view != display[0]))
2871 if (view->ops->open) {
2872 if (!view->ops->open(view)) {
2873 report("Failed to load %s view", view->name);
2877 } else if ((reload || strcmp(view->vid, view->id)) &&
2878 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2879 report("Failed to load %s view", view->name);
2883 if (split && prev->lineno - prev->offset >= prev->height) {
2884 /* Take the title line into account. */
2885 int lines = prev->lineno - prev->offset - prev->height + 1;
2887 /* Scroll the view that was split if the current line is
2888 * outside the new limited view. */
2889 do_scroll_view(prev, lines);
2892 if (prev && view != prev) {
2893 if (split && !backgrounded) {
2894 /* "Blur" the previous view. */
2895 update_view_title(prev);
2898 view->parent = prev;
2901 if (view->pipe && view->lines == 0) {
2902 /* Clear the old view and let the incremental updating refill
2906 } else if (view_is_displayed(view)) {
2911 /* If the view is backgrounded the above calls to report()
2912 * won't redraw the view title. */
2914 update_view_title(view);
2918 open_external_viewer(const char *argv[], const char *dir)
2920 def_prog_mode(); /* save current tty modes */
2921 endwin(); /* restore original tty modes */
2922 run_io_fg(argv, dir);
2923 fprintf(stderr, "Press Enter to continue");
2926 redraw_display(TRUE);
2930 open_mergetool(const char *file)
2932 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
2934 open_external_viewer(mergetool_argv, opt_cdup);
2938 open_editor(bool from_root, const char *file)
2940 const char *editor_argv[] = { "vi", file, NULL };
2943 editor = getenv("GIT_EDITOR");
2944 if (!editor && *opt_editor)
2945 editor = opt_editor;
2947 editor = getenv("VISUAL");
2949 editor = getenv("EDITOR");
2953 editor_argv[0] = editor;
2954 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
2958 open_run_request(enum request request)
2960 struct run_request *req = get_run_request(request);
2961 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
2964 report("Unknown run request");
2968 if (format_argv(argv, req->argv, FORMAT_ALL))
2969 open_external_viewer(argv, NULL);
2974 * User request switch noodle
2978 view_driver(struct view *view, enum request request)
2982 if (request == REQ_NONE) {
2987 if (request > REQ_NONE) {
2988 open_run_request(request);
2989 /* FIXME: When all views can refresh always do this. */
2990 if (view == VIEW(REQ_VIEW_STATUS) ||
2991 view == VIEW(REQ_VIEW_MAIN) ||
2992 view == VIEW(REQ_VIEW_LOG) ||
2993 view == VIEW(REQ_VIEW_STAGE))
2994 request = REQ_REFRESH;
2999 if (view && view->lines) {
3000 request = view->ops->request(view, request, &view->line[view->lineno]);
3001 if (request == REQ_NONE)
3008 case REQ_MOVE_PAGE_UP:
3009 case REQ_MOVE_PAGE_DOWN:
3010 case REQ_MOVE_FIRST_LINE:
3011 case REQ_MOVE_LAST_LINE:
3012 move_view(view, request);
3015 case REQ_SCROLL_LINE_DOWN:
3016 case REQ_SCROLL_LINE_UP:
3017 case REQ_SCROLL_PAGE_DOWN:
3018 case REQ_SCROLL_PAGE_UP:
3019 scroll_view(view, request);
3022 case REQ_VIEW_BLAME:
3024 report("No file chosen, press %s to open tree view",
3025 get_key(REQ_VIEW_TREE));
3028 open_view(view, request, OPEN_DEFAULT);
3033 report("No file chosen, press %s to open tree view",
3034 get_key(REQ_VIEW_TREE));
3037 open_view(view, request, OPEN_DEFAULT);
3040 case REQ_VIEW_PAGER:
3041 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3042 report("No pager content, press %s to run command from prompt",
3043 get_key(REQ_PROMPT));
3046 open_view(view, request, OPEN_DEFAULT);
3049 case REQ_VIEW_STAGE:
3050 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3051 report("No stage content, press %s to open the status view and choose file",
3052 get_key(REQ_VIEW_STATUS));
3055 open_view(view, request, OPEN_DEFAULT);
3058 case REQ_VIEW_STATUS:
3059 if (opt_is_inside_work_tree == FALSE) {
3060 report("The status view requires a working tree");
3063 open_view(view, request, OPEN_DEFAULT);
3071 open_view(view, request, OPEN_DEFAULT);
3076 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3078 if ((view == VIEW(REQ_VIEW_DIFF) &&
3079 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3080 (view == VIEW(REQ_VIEW_DIFF) &&
3081 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3082 (view == VIEW(REQ_VIEW_STAGE) &&
3083 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3084 (view == VIEW(REQ_VIEW_BLOB) &&
3085 view->parent == VIEW(REQ_VIEW_TREE))) {
3088 view = view->parent;
3089 line = view->lineno;
3090 move_view(view, request);
3091 if (view_is_displayed(view))
3092 update_view_title(view);
3093 if (line != view->lineno)
3094 view->ops->request(view, REQ_ENTER,
3095 &view->line[view->lineno]);
3098 move_view(view, request);
3104 int nviews = displayed_views();
3105 int next_view = (current_view + 1) % nviews;
3107 if (next_view == current_view) {
3108 report("Only one view is displayed");
3112 current_view = next_view;
3113 /* Blur out the title of the previous view. */
3114 update_view_title(view);
3119 report("Refreshing is not yet supported for the %s view", view->name);
3123 if (displayed_views() == 2)
3124 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3127 case REQ_TOGGLE_LINENO:
3128 toggle_view_option(&opt_line_number, "line numbers");
3131 case REQ_TOGGLE_DATE:
3132 toggle_view_option(&opt_date, "date display");
3135 case REQ_TOGGLE_AUTHOR:
3136 toggle_view_option(&opt_author, "author display");
3139 case REQ_TOGGLE_REV_GRAPH:
3140 toggle_view_option(&opt_rev_graph, "revision graph display");
3143 case REQ_TOGGLE_REFS:
3144 toggle_view_option(&opt_show_refs, "reference display");
3148 case REQ_SEARCH_BACK:
3149 search_view(view, request);
3154 find_next(view, request);
3157 case REQ_STOP_LOADING:
3158 for (i = 0; i < ARRAY_SIZE(views); i++) {
3161 report("Stopped loading the %s view", view->name),
3162 end_update(view, TRUE);
3166 case REQ_SHOW_VERSION:
3167 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3170 case REQ_SCREEN_RESIZE:
3173 case REQ_SCREEN_REDRAW:
3174 redraw_display(TRUE);
3178 report("Nothing to edit");
3182 report("Nothing to enter");
3185 case REQ_VIEW_CLOSE:
3186 /* XXX: Mark closed views by letting view->parent point to the
3187 * view itself. Parents to closed view should never be
3190 view->parent->parent != view->parent) {
3191 memset(display, 0, sizeof(display));
3193 display[current_view] = view->parent;
3194 view->parent = view;
3196 redraw_display(FALSE);
3205 report("Unknown key, press 'h' for help");
3218 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3220 char *text = line->data;
3222 if (opt_line_number && draw_lineno(view, lineno))
3225 draw_text(view, line->type, text, TRUE);
3230 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3232 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3233 char refbuf[SIZEOF_STR];
3236 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3237 ref = chomp_string(refbuf);
3242 /* This is the only fatal call, since it can "corrupt" the buffer. */
3243 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3250 add_pager_refs(struct view *view, struct line *line)
3252 char buf[SIZEOF_STR];
3253 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3255 size_t bufpos = 0, refpos = 0;
3256 const char *sep = "Refs: ";
3257 bool is_tag = FALSE;
3259 assert(line->type == LINE_COMMIT);
3261 refs = get_refs(commit_id);
3263 if (view == VIEW(REQ_VIEW_DIFF))
3264 goto try_add_describe_ref;
3269 struct ref *ref = refs[refpos];
3270 const char *fmt = ref->tag ? "%s[%s]" :
3271 ref->remote ? "%s<%s>" : "%s%s";
3273 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3278 } while (refs[refpos++]->next);
3280 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3281 try_add_describe_ref:
3282 /* Add <tag>-g<commit_id> "fake" reference. */
3283 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3290 add_line_text(view, buf, LINE_PP_REFS);
3294 pager_read(struct view *view, char *data)
3301 line = add_line_text(view, data, get_line_type(data));
3305 if (line->type == LINE_COMMIT &&
3306 (view == VIEW(REQ_VIEW_DIFF) ||
3307 view == VIEW(REQ_VIEW_LOG)))
3308 add_pager_refs(view, line);
3314 pager_request(struct view *view, enum request request, struct line *line)
3318 if (request != REQ_ENTER)
3321 if (line->type == LINE_COMMIT &&
3322 (view == VIEW(REQ_VIEW_LOG) ||
3323 view == VIEW(REQ_VIEW_PAGER))) {
3324 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3328 /* Always scroll the view even if it was split. That way
3329 * you can use Enter to scroll through the log view and
3330 * split open each commit diff. */
3331 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3333 /* FIXME: A minor workaround. Scrolling the view will call report("")
3334 * but if we are scrolling a non-current view this won't properly
3335 * update the view title. */
3337 update_view_title(view);
3343 pager_grep(struct view *view, struct line *line)
3346 char *text = line->data;
3351 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3358 pager_select(struct view *view, struct line *line)
3360 if (line->type == LINE_COMMIT) {
3361 char *text = (char *)line->data + STRING_SIZE("commit ");
3363 if (view != VIEW(REQ_VIEW_PAGER))
3364 string_copy_rev(view->ref, text);
3365 string_copy_rev(ref_commit, text);
3369 static struct view_ops pager_ops = {
3380 static const char *log_argv[SIZEOF_ARG] = {
3381 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3385 log_request(struct view *view, enum request request, struct line *line)
3390 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3393 return pager_request(view, request, line);
3397 static struct view_ops log_ops = {
3408 static const char *diff_argv[SIZEOF_ARG] = {
3409 "git", "show", "--pretty=fuller", "--no-color", "--root",
3410 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3413 static struct view_ops diff_ops = {
3429 help_open(struct view *view)
3431 int lines = ARRAY_SIZE(req_info) + 2;
3434 if (view->lines > 0)
3437 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3438 if (!req_info[i].request)
3441 lines += run_requests + 1;
3443 view->line = calloc(lines, sizeof(*view->line));
3447 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3449 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3452 if (req_info[i].request == REQ_NONE)
3455 if (!req_info[i].request) {
3456 add_line_text(view, "", LINE_DEFAULT);
3457 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3461 key = get_key(req_info[i].request);
3463 key = "(no key defined)";
3465 add_line_format(view, LINE_DEFAULT, " %-25s %s",
3466 key, req_info[i].help);
3470 add_line_text(view, "", LINE_DEFAULT);
3471 add_line_text(view, "External commands:", LINE_DEFAULT);
3474 for (i = 0; i < run_requests; i++) {
3475 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3477 char cmd[SIZEOF_STR];
3484 key = get_key_name(req->key);
3486 key = "(no key defined)";
3488 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3489 if (!string_format_from(cmd, &bufpos, "%s%s",
3490 argc ? " " : "", req->argv[argc]))
3493 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3494 keymap_table[req->keymap].name, key, cmd);
3500 static struct view_ops help_ops = {
3516 struct tree_stack_entry {
3517 struct tree_stack_entry *prev; /* Entry below this in the stack */
3518 unsigned long lineno; /* Line number to restore */
3519 char *name; /* Position of name in opt_path */
3522 /* The top of the path stack. */
3523 static struct tree_stack_entry *tree_stack = NULL;
3524 unsigned long tree_lineno = 0;
3527 pop_tree_stack_entry(void)
3529 struct tree_stack_entry *entry = tree_stack;
3531 tree_lineno = entry->lineno;
3533 tree_stack = entry->prev;
3538 push_tree_stack_entry(const char *name, unsigned long lineno)
3540 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3541 size_t pathlen = strlen(opt_path);
3546 entry->prev = tree_stack;
3547 entry->name = opt_path + pathlen;
3550 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3551 pop_tree_stack_entry();
3555 /* Move the current line to the first tree entry. */
3557 entry->lineno = lineno;
3560 /* Parse output from git-ls-tree(1):
3562 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3563 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3564 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3565 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3568 #define SIZEOF_TREE_ATTR \
3569 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3571 #define TREE_UP_FORMAT "040000 tree %s\t.."
3574 tree_path(struct line *line)
3576 const char *path = line->data;
3578 return path + SIZEOF_TREE_ATTR;
3582 tree_compare_entry(struct line *line1, struct line *line2)
3584 if (line1->type != line2->type)
3585 return line1->type == LINE_TREE_DIR ? -1 : 1;
3586 return strcmp(tree_path(line1), tree_path(line2));
3590 tree_read(struct view *view, char *text)
3592 size_t textlen = text ? strlen(text) : 0;
3593 struct line *entry, *line;
3594 enum line_type type;
3598 if (textlen <= SIZEOF_TREE_ATTR)
3601 type = text[STRING_SIZE("100644 ")] == 't'
3602 ? LINE_TREE_DIR : LINE_TREE_FILE;
3604 if (view->lines == 0 &&
3605 !add_line_format(view, LINE_DEFAULT, "Directory path /%s", opt_path))
3608 /* Strip the path part ... */
3610 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3611 size_t striplen = strlen(opt_path);
3612 char *path = text + SIZEOF_TREE_ATTR;
3614 if (pathlen > striplen)
3615 memmove(path, path + striplen,
3616 pathlen - striplen + 1);
3618 /* Insert "link" to parent directory. */
3619 if (view->lines == 1 &&
3620 !add_line_format(view, LINE_TREE_DIR, TREE_UP_FORMAT, view->ref))
3624 entry = add_line_text(view, text, type);
3629 /* Skip "Directory ..." and ".." line. */
3630 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3631 if (tree_compare_entry(line, entry) <= 0)
3634 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3638 for (; line <= entry; line++)
3639 line->dirty = line->cleareol = 1;
3643 if (tree_lineno > view->lineno) {
3644 view->lineno = tree_lineno;
3652 tree_request(struct view *view, enum request request, struct line *line)
3654 enum open_flags flags;
3657 case REQ_VIEW_BLAME:
3658 if (line->type != LINE_TREE_FILE) {
3659 report("Blame only supported for files");
3663 string_copy(opt_ref, view->vid);
3667 if (line->type != LINE_TREE_FILE) {
3668 report("Edit only supported for files");
3669 } else if (!is_head_commit(view->vid)) {
3670 report("Edit only supported for files in the current work tree");
3672 open_editor(TRUE, opt_file);
3676 case REQ_TREE_PARENT:
3678 /* quit view if at top of tree */
3679 return REQ_VIEW_CLOSE;
3682 line = &view->line[1];
3692 /* Cleanup the stack if the tree view is at a different tree. */
3693 while (!*opt_path && tree_stack)
3694 pop_tree_stack_entry();
3696 switch (line->type) {
3698 /* Depending on whether it is a subdir or parent (updir?) link
3699 * mangle the path buffer. */
3700 if (line == &view->line[1] && *opt_path) {
3701 pop_tree_stack_entry();
3704 const char *basename = tree_path(line);
3706 push_tree_stack_entry(basename, view->lineno);
3709 /* Trees and subtrees share the same ID, so they are not not
3710 * unique like blobs. */
3711 flags = OPEN_RELOAD;
3712 request = REQ_VIEW_TREE;
3715 case LINE_TREE_FILE:
3716 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3717 request = REQ_VIEW_BLOB;
3724 open_view(view, request, flags);
3725 if (request == REQ_VIEW_TREE) {
3726 view->lineno = tree_lineno;
3733 tree_select(struct view *view, struct line *line)
3735 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3737 if (line->type == LINE_TREE_FILE) {
3738 string_copy_rev(ref_blob, text);
3739 string_format(opt_file, "%s%s", opt_path, tree_path(line));
3741 } else if (line->type != LINE_TREE_DIR) {
3745 string_copy_rev(view->ref, text);
3748 static const char *tree_argv[SIZEOF_ARG] = {
3749 "git", "ls-tree", "%(commit)", "%(directory)", NULL
3752 static struct view_ops tree_ops = {
3764 blob_read(struct view *view, char *line)
3768 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3771 static const char *blob_argv[SIZEOF_ARG] = {
3772 "git", "cat-file", "blob", "%(blob)", NULL
3775 static struct view_ops blob_ops = {
3789 * Loading the blame view is a two phase job:
3791 * 1. File content is read either using opt_file from the
3792 * filesystem or using git-cat-file.
3793 * 2. Then blame information is incrementally added by
3794 * reading output from git-blame.
3797 static const char *blame_head_argv[] = {
3798 "git", "blame", "--incremental", "--", "%(file)", NULL
3801 static const char *blame_ref_argv[] = {
3802 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
3805 static const char *blame_cat_file_argv[] = {
3806 "git", "cat-file", "blob", "%(ref):%(file)", NULL
3809 struct blame_commit {
3810 char id[SIZEOF_REV]; /* SHA1 ID. */
3811 char title[128]; /* First line of the commit message. */
3812 char author[75]; /* Author of the commit. */
3813 struct tm time; /* Date from the author ident. */
3814 char filename[128]; /* Name of file. */
3818 struct blame_commit *commit;
3823 blame_open(struct view *view)
3825 if (*opt_ref || !io_open(&view->io, opt_file)) {
3826 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
3830 setup_update(view, opt_file);
3831 string_format(view->ref, "%s ...", opt_file);
3836 static struct blame_commit *
3837 get_blame_commit(struct view *view, const char *id)
3841 for (i = 0; i < view->lines; i++) {
3842 struct blame *blame = view->line[i].data;
3847 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3848 return blame->commit;
3852 struct blame_commit *commit = calloc(1, sizeof(*commit));
3855 string_ncopy(commit->id, id, SIZEOF_REV);
3861 parse_number(const char **posref, size_t *number, size_t min, size_t max)
3863 const char *pos = *posref;
3866 pos = strchr(pos + 1, ' ');
3867 if (!pos || !isdigit(pos[1]))
3869 *number = atoi(pos + 1);
3870 if (*number < min || *number > max)
3877 static struct blame_commit *
3878 parse_blame_commit(struct view *view, const char *text, int *blamed)
3880 struct blame_commit *commit;
3881 struct blame *blame;
3882 const char *pos = text + SIZEOF_REV - 1;
3886 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3889 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3890 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3893 commit = get_blame_commit(view, text);
3899 struct line *line = &view->line[lineno + group - 1];
3902 blame->commit = commit;
3910 blame_read_file(struct view *view, const char *line, bool *read_file)
3913 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
3916 if (view->lines == 0 && !view->parent)
3917 die("No blame exist for %s", view->vid);
3919 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
3920 report("Failed to load blame data");
3924 done_io(view->pipe);
3930 size_t linelen = strlen(line);
3931 struct blame *blame = malloc(sizeof(*blame) + linelen);
3933 blame->commit = NULL;
3934 strncpy(blame->text, line, linelen);
3935 blame->text[linelen] = 0;
3936 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3941 match_blame_header(const char *name, char **line)
3943 size_t namelen = strlen(name);
3944 bool matched = !strncmp(name, *line, namelen);
3953 blame_read(struct view *view, char *line)
3955 static struct blame_commit *commit = NULL;
3956 static int blamed = 0;
3957 static time_t author_time;
3958 static bool read_file = TRUE;
3961 return blame_read_file(view, line, &read_file);
3968 string_format(view->ref, "%s", view->vid);
3969 if (view_is_displayed(view)) {
3970 update_view_title(view);
3971 redraw_view_from(view, 0);
3977 commit = parse_blame_commit(view, line, &blamed);
3978 string_format(view->ref, "%s %2d%%", view->vid,
3979 blamed * 100 / view->lines);
3981 } else if (match_blame_header("author ", &line)) {
3982 string_ncopy(commit->author, line, strlen(line));
3984 } else if (match_blame_header("author-time ", &line)) {
3985 author_time = (time_t) atol(line);
3987 } else if (match_blame_header("author-tz ", &line)) {
3990 tz = ('0' - line[1]) * 60 * 60 * 10;
3991 tz += ('0' - line[2]) * 60 * 60;
3992 tz += ('0' - line[3]) * 60;
3993 tz += ('0' - line[4]) * 60;
3999 gmtime_r(&author_time, &commit->time);
4001 } else if (match_blame_header("summary ", &line)) {
4002 string_ncopy(commit->title, line, strlen(line));
4004 } else if (match_blame_header("filename ", &line)) {
4005 string_ncopy(commit->filename, line, strlen(line));
4013 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4015 struct blame *blame = line->data;
4016 struct tm *time = NULL;
4017 const char *id = NULL, *author = NULL;
4019 if (blame->commit && *blame->commit->filename) {
4020 id = blame->commit->id;
4021 author = blame->commit->author;
4022 time = &blame->commit->time;
4025 if (opt_date && draw_date(view, time))
4029 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
4032 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4035 if (draw_lineno(view, lineno))
4038 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4043 check_blame_commit(struct blame *blame)
4046 report("Commit data not loaded yet");
4047 else if (!strcmp(blame->commit->id, NULL_ID))
4048 report("No commit exist for the selected line");
4055 blame_request(struct view *view, enum request request, struct line *line)
4057 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4058 struct blame *blame = line->data;
4061 case REQ_VIEW_BLAME:
4062 if (check_blame_commit(blame)) {
4063 string_copy(opt_ref, blame->commit->id);
4064 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4069 if (!blame->commit) {
4070 report("No commit loaded yet");
4074 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4075 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4078 if (!strcmp(blame->commit->id, NULL_ID)) {
4079 struct view *diff = VIEW(REQ_VIEW_DIFF);
4080 const char *diff_index_argv[] = {
4081 "git", "diff-index", "--root", "--cached",
4082 "--patch-with-stat", "-C", "-M",
4083 "HEAD", "--", view->vid, NULL
4086 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4087 report("Failed to allocate diff command");
4090 flags |= OPEN_PREPARED;
4093 open_view(view, REQ_VIEW_DIFF, flags);
4104 blame_grep(struct view *view, struct line *line)
4106 struct blame *blame = line->data;
4107 struct blame_commit *commit = blame->commit;
4110 #define MATCH(text, on) \
4111 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4114 char buf[DATE_COLS + 1];
4116 if (MATCH(commit->title, 1) ||
4117 MATCH(commit->author, opt_author) ||
4118 MATCH(commit->id, opt_date))
4121 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4126 return MATCH(blame->text, 1);
4132 blame_select(struct view *view, struct line *line)
4134 struct blame *blame = line->data;
4135 struct blame_commit *commit = blame->commit;
4140 if (!strcmp(commit->id, NULL_ID))
4141 string_ncopy(ref_commit, "HEAD", 4);
4143 string_copy_rev(ref_commit, commit->id);
4146 static struct view_ops blame_ops = {
4165 char rev[SIZEOF_REV];
4166 char name[SIZEOF_STR];
4170 char rev[SIZEOF_REV];
4171 char name[SIZEOF_STR];
4175 static char status_onbranch[SIZEOF_STR];
4176 static struct status stage_status;
4177 static enum line_type stage_line_type;
4178 static size_t stage_chunks;
4179 static int *stage_chunk;
4181 /* This should work even for the "On branch" line. */
4183 status_has_none(struct view *view, struct line *line)
4185 return line < view->line + view->lines && !line[1].data;
4188 /* Get fields from the diff line:
4189 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4192 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4194 const char *old_mode = buf + 1;
4195 const char *new_mode = buf + 8;
4196 const char *old_rev = buf + 15;
4197 const char *new_rev = buf + 56;
4198 const char *status = buf + 97;
4201 old_mode[-1] != ':' ||
4202 new_mode[-1] != ' ' ||
4203 old_rev[-1] != ' ' ||
4204 new_rev[-1] != ' ' ||
4208 file->status = *status;
4210 string_copy_rev(file->old.rev, old_rev);
4211 string_copy_rev(file->new.rev, new_rev);
4213 file->old.mode = strtoul(old_mode, NULL, 8);
4214 file->new.mode = strtoul(new_mode, NULL, 8);
4216 file->old.name[0] = file->new.name[0] = 0;
4222 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4224 struct status *file = NULL;
4225 struct status *unmerged = NULL;
4229 if (!run_io(&io, argv, NULL, IO_RD))
4232 add_line_data(view, NULL, type);
4234 while ((buf = io_get(&io, 0, TRUE))) {
4236 file = calloc(1, sizeof(*file));
4237 if (!file || !add_line_data(view, file, type))
4241 /* Parse diff info part. */
4243 file->status = status;
4245 string_copy(file->old.rev, NULL_ID);
4247 } else if (!file->status) {
4248 if (!status_get_diff(file, buf, strlen(buf)))
4251 buf = io_get(&io, 0, TRUE);
4255 /* Collapse all 'M'odified entries that follow a
4256 * associated 'U'nmerged entry. */
4257 if (file->status == 'U') {
4260 } else if (unmerged) {
4261 int collapse = !strcmp(buf, unmerged->new.name);
4272 /* Grab the old name for rename/copy. */
4273 if (!*file->old.name &&
4274 (file->status == 'R' || file->status == 'C')) {
4275 string_ncopy(file->old.name, buf, strlen(buf));
4277 buf = io_get(&io, 0, TRUE);
4282 /* git-ls-files just delivers a NUL separated list of
4283 * file names similar to the second half of the
4284 * git-diff-* output. */
4285 string_ncopy(file->new.name, buf, strlen(buf));
4286 if (!*file->old.name)
4287 string_copy(file->old.name, file->new.name);
4291 if (io_error(&io)) {
4297 if (!view->line[view->lines - 1].data)
4298 add_line_data(view, NULL, LINE_STAT_NONE);
4304 /* Don't show unmerged entries in the staged section. */
4305 static const char *status_diff_index_argv[] = {
4306 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4307 "--cached", "-M", "HEAD", NULL
4310 static const char *status_diff_files_argv[] = {
4311 "git", "diff-files", "-z", NULL
4314 static const char *status_list_other_argv[] = {
4315 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4318 static const char *status_list_no_head_argv[] = {
4319 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4322 static const char *update_index_argv[] = {
4323 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4326 /* First parse staged info using git-diff-index(1), then parse unstaged
4327 * info using git-diff-files(1), and finally untracked files using
4328 * git-ls-files(1). */
4330 status_open(struct view *view)
4332 unsigned long prev_lineno = view->lineno;
4336 add_line_data(view, NULL, LINE_STAT_HEAD);
4337 if (is_initial_commit())
4338 string_copy(status_onbranch, "Initial commit");
4339 else if (!*opt_head)
4340 string_copy(status_onbranch, "Not currently on any branch");
4341 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4344 run_io_bg(update_index_argv);
4346 if (is_initial_commit()) {
4347 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4349 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4353 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4354 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4357 /* If all went well restore the previous line number to stay in
4358 * the context or select a line with something that can be
4360 if (prev_lineno >= view->lines)
4361 prev_lineno = view->lines - 1;
4362 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4364 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4367 /* If the above fails, always skip the "On branch" line. */
4368 if (prev_lineno < view->lines)
4369 view->lineno = prev_lineno;
4373 if (view->lineno < view->offset)
4374 view->offset = view->lineno;
4375 else if (view->offset + view->height <= view->lineno)
4376 view->offset = view->lineno - view->height + 1;
4382 status_draw(struct view *view, struct line *line, unsigned int lineno)
4384 struct status *status = line->data;
4385 enum line_type type;
4389 switch (line->type) {
4390 case LINE_STAT_STAGED:
4391 type = LINE_STAT_SECTION;
4392 text = "Changes to be committed:";
4395 case LINE_STAT_UNSTAGED:
4396 type = LINE_STAT_SECTION;
4397 text = "Changed but not updated:";
4400 case LINE_STAT_UNTRACKED:
4401 type = LINE_STAT_SECTION;
4402 text = "Untracked files:";
4405 case LINE_STAT_NONE:
4406 type = LINE_DEFAULT;
4407 text = " (no files)";
4410 case LINE_STAT_HEAD:
4411 type = LINE_STAT_HEAD;
4412 text = status_onbranch;
4419 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4421 buf[0] = status->status;
4422 if (draw_text(view, line->type, buf, TRUE))
4424 type = LINE_DEFAULT;
4425 text = status->new.name;
4428 draw_text(view, type, text, TRUE);
4433 status_enter(struct view *view, struct line *line)
4435 struct status *status = line->data;
4436 const char *oldpath = status ? status->old.name : NULL;
4437 /* Diffs for unmerged entries are empty when passing the new
4438 * path, so leave it empty. */
4439 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4441 enum open_flags split;
4442 struct view *stage = VIEW(REQ_VIEW_STAGE);
4444 if (line->type == LINE_STAT_NONE ||
4445 (!status && line[1].type == LINE_STAT_NONE)) {
4446 report("No file to diff");
4450 switch (line->type) {
4451 case LINE_STAT_STAGED:
4452 if (is_initial_commit()) {
4453 const char *no_head_diff_argv[] = {
4454 "git", "diff", "--no-color", "--patch-with-stat",
4455 "--", "/dev/null", newpath, NULL
4458 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4461 const char *index_show_argv[] = {
4462 "git", "diff-index", "--root", "--patch-with-stat",
4463 "-C", "-M", "--cached", "HEAD", "--",
4464 oldpath, newpath, NULL
4467 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4472 info = "Staged changes to %s";
4474 info = "Staged changes";
4477 case LINE_STAT_UNSTAGED:
4479 const char *files_show_argv[] = {
4480 "git", "diff-files", "--root", "--patch-with-stat",
4481 "-C", "-M", "--", oldpath, newpath, NULL
4484 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4487 info = "Unstaged changes to %s";
4489 info = "Unstaged changes";
4492 case LINE_STAT_UNTRACKED:
4494 report("No file to show");
4498 if (!suffixcmp(status->new.name, -1, "/")) {
4499 report("Cannot display a directory");
4503 if (!prepare_update_file(stage, newpath))
4505 info = "Untracked file %s";
4508 case LINE_STAT_HEAD:
4512 die("line type %d not handled in switch", line->type);
4515 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4516 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH | split);
4517 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4519 stage_status = *status;
4521 memset(&stage_status, 0, sizeof(stage_status));
4524 stage_line_type = line->type;
4526 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4533 status_exists(struct status *status, enum line_type type)
4535 struct view *view = VIEW(REQ_VIEW_STATUS);
4538 for (line = view->line; line < view->line + view->lines; line++) {
4539 struct status *pos = line->data;
4541 if (line->type != type)
4543 if (!pos && (!status || !status->status))
4545 if (pos && !strcmp(status->new.name, pos->new.name))
4554 status_update_prepare(struct io *io, enum line_type type)
4556 const char *staged_argv[] = {
4557 "git", "update-index", "-z", "--index-info", NULL
4559 const char *others_argv[] = {
4560 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4564 case LINE_STAT_STAGED:
4565 return run_io(io, staged_argv, opt_cdup, IO_WR);
4567 case LINE_STAT_UNSTAGED:
4568 return run_io(io, others_argv, opt_cdup, IO_WR);
4570 case LINE_STAT_UNTRACKED:
4571 return run_io(io, others_argv, NULL, IO_WR);
4574 die("line type %d not handled in switch", type);
4580 status_update_write(struct io *io, struct status *status, enum line_type type)
4582 char buf[SIZEOF_STR];
4586 case LINE_STAT_STAGED:
4587 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4590 status->old.name, 0))
4594 case LINE_STAT_UNSTAGED:
4595 case LINE_STAT_UNTRACKED:
4596 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4601 die("line type %d not handled in switch", type);
4604 return io_write(io, buf, bufsize);
4608 status_update_file(struct status *status, enum line_type type)
4613 if (!status_update_prepare(&io, type))
4616 result = status_update_write(&io, status, type);
4622 status_update_files(struct view *view, struct line *line)
4626 struct line *pos = view->line + view->lines;
4630 if (!status_update_prepare(&io, line->type))
4633 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4636 for (file = 0, done = 0; result && file < files; line++, file++) {
4637 int almost_done = file * 100 / files;
4639 if (almost_done > done) {
4641 string_format(view->ref, "updating file %u of %u (%d%% done)",
4643 update_view_title(view);
4645 result = status_update_write(&io, line->data, line->type);
4653 status_update(struct view *view)
4655 struct line *line = &view->line[view->lineno];
4657 assert(view->lines);
4660 /* This should work even for the "On branch" line. */
4661 if (line < view->line + view->lines && !line[1].data) {
4662 report("Nothing to update");
4666 if (!status_update_files(view, line + 1)) {
4667 report("Failed to update file status");
4671 } else if (!status_update_file(line->data, line->type)) {
4672 report("Failed to update file status");
4680 status_revert(struct status *status, enum line_type type, bool has_none)
4682 if (!status || type != LINE_STAT_UNSTAGED) {
4683 if (type == LINE_STAT_STAGED) {
4684 report("Cannot revert changes to staged files");
4685 } else if (type == LINE_STAT_UNTRACKED) {
4686 report("Cannot revert changes to untracked files");
4687 } else if (has_none) {
4688 report("Nothing to revert");
4690 report("Cannot revert changes to multiple files");
4695 const char *checkout_argv[] = {
4696 "git", "checkout", "--", status->old.name, NULL
4699 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
4701 return run_io_fg(checkout_argv, opt_cdup);
4706 status_request(struct view *view, enum request request, struct line *line)
4708 struct status *status = line->data;
4711 case REQ_STATUS_UPDATE:
4712 if (!status_update(view))
4716 case REQ_STATUS_REVERT:
4717 if (!status_revert(status, line->type, status_has_none(view, line)))
4721 case REQ_STATUS_MERGE:
4722 if (!status || status->status != 'U') {
4723 report("Merging only possible for files with unmerged status ('U').");
4726 open_mergetool(status->new.name);
4732 if (status->status == 'D') {
4733 report("File has been deleted.");
4737 open_editor(status->status != '?', status->new.name);
4740 case REQ_VIEW_BLAME:
4742 string_copy(opt_file, status->new.name);
4748 /* After returning the status view has been split to
4749 * show the stage view. No further reloading is
4751 status_enter(view, line);
4755 /* Simply reload the view. */
4762 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4768 status_select(struct view *view, struct line *line)
4770 struct status *status = line->data;
4771 char file[SIZEOF_STR] = "all files";
4775 if (status && !string_format(file, "'%s'", status->new.name))
4778 if (!status && line[1].type == LINE_STAT_NONE)
4781 switch (line->type) {
4782 case LINE_STAT_STAGED:
4783 text = "Press %s to unstage %s for commit";
4786 case LINE_STAT_UNSTAGED:
4787 text = "Press %s to stage %s for commit";
4790 case LINE_STAT_UNTRACKED:
4791 text = "Press %s to stage %s for addition";
4794 case LINE_STAT_HEAD:
4795 case LINE_STAT_NONE:
4796 text = "Nothing to update";
4800 die("line type %d not handled in switch", line->type);
4803 if (status && status->status == 'U') {
4804 text = "Press %s to resolve conflict in %s";
4805 key = get_key(REQ_STATUS_MERGE);
4808 key = get_key(REQ_STATUS_UPDATE);
4811 string_format(view->ref, text, key, file);
4815 status_grep(struct view *view, struct line *line)
4817 struct status *status = line->data;
4818 enum { S_STATUS, S_NAME, S_END } state;
4825 for (state = S_STATUS; state < S_END; state++) {
4829 case S_NAME: text = status->new.name; break;
4831 buf[0] = status->status;
4839 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4846 static struct view_ops status_ops = {
4859 stage_diff_write(struct io *io, struct line *line, struct line *end)
4861 while (line < end) {
4862 if (!io_write(io, line->data, strlen(line->data)) ||
4863 !io_write(io, "\n", 1))
4866 if (line->type == LINE_DIFF_CHUNK ||
4867 line->type == LINE_DIFF_HEADER)
4874 static struct line *
4875 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4877 for (; view->line < line; line--)
4878 if (line->type == type)
4885 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
4887 const char *apply_argv[SIZEOF_ARG] = {
4888 "git", "apply", "--whitespace=nowarn", NULL
4890 struct line *diff_hdr;
4894 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4899 apply_argv[argc++] = "--cached";
4900 if (revert || stage_line_type == LINE_STAT_STAGED)
4901 apply_argv[argc++] = "-R";
4902 apply_argv[argc++] = "-";
4903 apply_argv[argc++] = NULL;
4904 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
4907 if (!stage_diff_write(&io, diff_hdr, chunk) ||
4908 !stage_diff_write(&io, chunk, view->line + view->lines))
4912 run_io_bg(update_index_argv);
4914 return chunk ? TRUE : FALSE;
4918 stage_update(struct view *view, struct line *line)
4920 struct line *chunk = NULL;
4922 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
4923 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4926 if (!stage_apply_chunk(view, chunk, FALSE)) {
4927 report("Failed to apply chunk");
4931 } else if (!stage_status.status) {
4932 view = VIEW(REQ_VIEW_STATUS);
4934 for (line = view->line; line < view->line + view->lines; line++)
4935 if (line->type == stage_line_type)
4938 if (!status_update_files(view, line + 1)) {
4939 report("Failed to update files");
4943 } else if (!status_update_file(&stage_status, stage_line_type)) {
4944 report("Failed to update file");
4952 stage_revert(struct view *view, struct line *line)
4954 struct line *chunk = NULL;
4956 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
4957 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4960 if (!prompt_yesno("Are you sure you want to revert changes?"))
4963 if (!stage_apply_chunk(view, chunk, TRUE)) {
4964 report("Failed to revert chunk");
4970 return status_revert(stage_status.status ? &stage_status : NULL,
4971 stage_line_type, FALSE);
4977 stage_next(struct view *view, struct line *line)
4981 if (!stage_chunks) {
4982 static size_t alloc = 0;
4985 for (line = view->line; line < view->line + view->lines; line++) {
4986 if (line->type != LINE_DIFF_CHUNK)
4989 tmp = realloc_items(stage_chunk, &alloc,
4990 stage_chunks, sizeof(*tmp));
4992 report("Allocation failure");
4997 stage_chunk[stage_chunks++] = line - view->line;
5001 for (i = 0; i < stage_chunks; i++) {
5002 if (stage_chunk[i] > view->lineno) {
5003 do_scroll_view(view, stage_chunk[i] - view->lineno);
5004 report("Chunk %d of %d", i + 1, stage_chunks);
5009 report("No next chunk found");
5013 stage_request(struct view *view, enum request request, struct line *line)
5016 case REQ_STATUS_UPDATE:
5017 if (!stage_update(view, line))
5021 case REQ_STATUS_REVERT:
5022 if (!stage_revert(view, line))
5026 case REQ_STAGE_NEXT:
5027 if (stage_line_type == LINE_STAT_UNTRACKED) {
5028 report("File is untracked; press %s to add",
5029 get_key(REQ_STATUS_UPDATE));
5032 stage_next(view, line);
5036 if (!stage_status.new.name[0])
5038 if (stage_status.status == 'D') {
5039 report("File has been deleted.");
5043 open_editor(stage_status.status != '?', stage_status.new.name);
5047 /* Reload everything ... */
5050 case REQ_VIEW_BLAME:
5051 if (stage_status.new.name[0]) {
5052 string_copy(opt_file, stage_status.new.name);
5058 return pager_request(view, request, line);
5064 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5066 /* Check whether the staged entry still exists, and close the
5067 * stage view if it doesn't. */
5068 if (!status_exists(&stage_status, stage_line_type))
5069 return REQ_VIEW_CLOSE;
5071 if (stage_line_type == LINE_STAT_UNTRACKED) {
5072 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5073 report("Cannot display a directory");
5077 if (!prepare_update_file(view, stage_status.new.name)) {
5078 report("Failed to open file: %s", strerror(errno));
5082 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5087 static struct view_ops stage_ops = {
5104 char id[SIZEOF_REV]; /* SHA1 ID. */
5105 char title[128]; /* First line of the commit message. */
5106 char author[75]; /* Author of the commit. */
5107 struct tm time; /* Date from the author ident. */
5108 struct ref **refs; /* Repository references. */
5109 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5110 size_t graph_size; /* The width of the graph array. */
5111 bool has_parents; /* Rewritten --parents seen. */
5114 /* Size of rev graph with no "padding" columns */
5115 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5118 struct rev_graph *prev, *next, *parents;
5119 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5121 struct commit *commit;
5123 unsigned int boundary:1;
5126 /* Parents of the commit being visualized. */
5127 static struct rev_graph graph_parents[4];
5129 /* The current stack of revisions on the graph. */
5130 static struct rev_graph graph_stacks[4] = {
5131 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5132 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5133 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5134 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5138 graph_parent_is_merge(struct rev_graph *graph)
5140 return graph->parents->size > 1;
5144 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5146 struct commit *commit = graph->commit;
5148 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5149 commit->graph[commit->graph_size++] = symbol;
5153 clear_rev_graph(struct rev_graph *graph)
5155 graph->boundary = 0;
5156 graph->size = graph->pos = 0;
5157 graph->commit = NULL;
5158 memset(graph->parents, 0, sizeof(*graph->parents));
5162 done_rev_graph(struct rev_graph *graph)
5164 if (graph_parent_is_merge(graph) &&
5165 graph->pos < graph->size - 1 &&
5166 graph->next->size == graph->size + graph->parents->size - 1) {
5167 size_t i = graph->pos + graph->parents->size - 1;
5169 graph->commit->graph_size = i * 2;
5170 while (i < graph->next->size - 1) {
5171 append_to_rev_graph(graph, ' ');
5172 append_to_rev_graph(graph, '\\');
5177 clear_rev_graph(graph);
5181 push_rev_graph(struct rev_graph *graph, const char *parent)
5185 /* "Collapse" duplicate parents lines.
5187 * FIXME: This needs to also update update the drawn graph but
5188 * for now it just serves as a method for pruning graph lines. */
5189 for (i = 0; i < graph->size; i++)
5190 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5193 if (graph->size < SIZEOF_REVITEMS) {
5194 string_copy_rev(graph->rev[graph->size++], parent);
5199 get_rev_graph_symbol(struct rev_graph *graph)
5203 if (graph->boundary)
5204 symbol = REVGRAPH_BOUND;
5205 else if (graph->parents->size == 0)
5206 symbol = REVGRAPH_INIT;
5207 else if (graph_parent_is_merge(graph))
5208 symbol = REVGRAPH_MERGE;
5209 else if (graph->pos >= graph->size)
5210 symbol = REVGRAPH_BRANCH;
5212 symbol = REVGRAPH_COMMIT;
5218 draw_rev_graph(struct rev_graph *graph)
5221 chtype separator, line;
5223 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5224 static struct rev_filler fillers[] = {
5230 chtype symbol = get_rev_graph_symbol(graph);
5231 struct rev_filler *filler;
5234 if (opt_line_graphics)
5235 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5237 filler = &fillers[DEFAULT];
5239 for (i = 0; i < graph->pos; i++) {
5240 append_to_rev_graph(graph, filler->line);
5241 if (graph_parent_is_merge(graph->prev) &&
5242 graph->prev->pos == i)
5243 filler = &fillers[RSHARP];
5245 append_to_rev_graph(graph, filler->separator);
5248 /* Place the symbol for this revision. */
5249 append_to_rev_graph(graph, symbol);
5251 if (graph->prev->size > graph->size)
5252 filler = &fillers[RDIAG];
5254 filler = &fillers[DEFAULT];
5258 for (; i < graph->size; i++) {
5259 append_to_rev_graph(graph, filler->separator);
5260 append_to_rev_graph(graph, filler->line);
5261 if (graph_parent_is_merge(graph->prev) &&
5262 i < graph->prev->pos + graph->parents->size)
5263 filler = &fillers[RSHARP];
5264 if (graph->prev->size > graph->size)
5265 filler = &fillers[LDIAG];
5268 if (graph->prev->size > graph->size) {
5269 append_to_rev_graph(graph, filler->separator);
5270 if (filler->line != ' ')
5271 append_to_rev_graph(graph, filler->line);
5275 /* Prepare the next rev graph */
5277 prepare_rev_graph(struct rev_graph *graph)
5281 /* First, traverse all lines of revisions up to the active one. */
5282 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5283 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5286 push_rev_graph(graph->next, graph->rev[graph->pos]);
5289 /* Interleave the new revision parent(s). */
5290 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5291 push_rev_graph(graph->next, graph->parents->rev[i]);
5293 /* Lastly, put any remaining revisions. */
5294 for (i = graph->pos + 1; i < graph->size; i++)
5295 push_rev_graph(graph->next, graph->rev[i]);
5299 update_rev_graph(struct view *view, struct rev_graph *graph)
5301 /* If this is the finalizing update ... */
5303 prepare_rev_graph(graph);
5305 /* Graph visualization needs a one rev look-ahead,
5306 * so the first update doesn't visualize anything. */
5307 if (!graph->prev->commit)
5310 if (view->lines > 2)
5311 view->line[view->lines - 3].dirty = 1;
5312 if (view->lines > 1)
5313 view->line[view->lines - 2].dirty = 1;
5314 draw_rev_graph(graph->prev);
5315 done_rev_graph(graph->prev->prev);
5323 static const char *main_argv[SIZEOF_ARG] = {
5324 "git", "log", "--no-color", "--pretty=raw", "--parents",
5325 "--topo-order", "%(head)", NULL
5329 main_draw(struct view *view, struct line *line, unsigned int lineno)
5331 struct commit *commit = line->data;
5333 if (!*commit->author)
5336 if (opt_date && draw_date(view, &commit->time))
5340 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5343 if (opt_rev_graph && commit->graph_size &&
5344 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5347 if (opt_show_refs && commit->refs) {
5351 enum line_type type;
5353 if (commit->refs[i]->head)
5354 type = LINE_MAIN_HEAD;
5355 else if (commit->refs[i]->ltag)
5356 type = LINE_MAIN_LOCAL_TAG;
5357 else if (commit->refs[i]->tag)
5358 type = LINE_MAIN_TAG;
5359 else if (commit->refs[i]->tracked)
5360 type = LINE_MAIN_TRACKED;
5361 else if (commit->refs[i]->remote)
5362 type = LINE_MAIN_REMOTE;
5364 type = LINE_MAIN_REF;
5366 if (draw_text(view, type, "[", TRUE) ||
5367 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5368 draw_text(view, type, "]", TRUE))
5371 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5373 } while (commit->refs[i++]->next);
5376 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5380 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5382 main_read(struct view *view, char *line)
5384 static struct rev_graph *graph = graph_stacks;
5385 enum line_type type;
5386 struct commit *commit;
5391 if (!view->lines && !view->parent)
5392 die("No revisions match the given arguments.");
5393 if (view->lines > 0) {
5394 commit = view->line[view->lines - 1].data;
5395 view->line[view->lines - 1].dirty = 1;
5396 if (!*commit->author) {
5399 graph->commit = NULL;
5402 update_rev_graph(view, graph);
5404 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5405 clear_rev_graph(&graph_stacks[i]);
5409 type = get_line_type(line);
5410 if (type == LINE_COMMIT) {
5411 commit = calloc(1, sizeof(struct commit));
5415 line += STRING_SIZE("commit ");
5417 graph->boundary = 1;
5421 string_copy_rev(commit->id, line);
5422 commit->refs = get_refs(commit->id);
5423 graph->commit = commit;
5424 add_line_data(view, commit, LINE_MAIN_COMMIT);
5426 while ((line = strchr(line, ' '))) {
5428 push_rev_graph(graph->parents, line);
5429 commit->has_parents = TRUE;
5436 commit = view->line[view->lines - 1].data;
5440 if (commit->has_parents)
5442 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5447 /* Parse author lines where the name may be empty:
5448 * author <email@address.tld> 1138474660 +0100
5450 char *ident = line + STRING_SIZE("author ");
5451 char *nameend = strchr(ident, '<');
5452 char *emailend = strchr(ident, '>');
5454 if (!nameend || !emailend)
5457 update_rev_graph(view, graph);
5458 graph = graph->next;
5460 *nameend = *emailend = 0;
5461 ident = chomp_string(ident);
5463 ident = chomp_string(nameend + 1);
5468 string_ncopy(commit->author, ident, strlen(ident));
5469 view->line[view->lines - 1].dirty = 1;
5471 /* Parse epoch and timezone */
5472 if (emailend[1] == ' ') {
5473 char *secs = emailend + 2;
5474 char *zone = strchr(secs, ' ');
5475 time_t time = (time_t) atol(secs);
5477 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5481 tz = ('0' - zone[1]) * 60 * 60 * 10;
5482 tz += ('0' - zone[2]) * 60 * 60;
5483 tz += ('0' - zone[3]) * 60;
5484 tz += ('0' - zone[4]) * 60;
5492 gmtime_r(&time, &commit->time);
5497 /* Fill in the commit title if it has not already been set. */
5498 if (commit->title[0])
5501 /* Require titles to start with a non-space character at the
5502 * offset used by git log. */
5503 if (strncmp(line, " ", 4))
5506 /* Well, if the title starts with a whitespace character,
5507 * try to be forgiving. Otherwise we end up with no title. */
5508 while (isspace(*line))
5512 /* FIXME: More graceful handling of titles; append "..." to
5513 * shortened titles, etc. */
5515 string_ncopy(commit->title, line, strlen(line));
5516 view->line[view->lines - 1].dirty = 1;
5523 main_request(struct view *view, enum request request, struct line *line)
5525 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5529 open_view(view, REQ_VIEW_DIFF, flags);
5533 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5543 grep_refs(struct ref **refs, regex_t *regex)
5551 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5553 } while (refs[i++]->next);
5559 main_grep(struct view *view, struct line *line)
5561 struct commit *commit = line->data;
5562 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5563 char buf[DATE_COLS + 1];
5566 for (state = S_TITLE; state < S_END; state++) {
5570 case S_TITLE: text = commit->title; break;
5574 text = commit->author;
5579 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5586 if (grep_refs(commit->refs, view->regex) == TRUE)
5593 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5601 main_select(struct view *view, struct line *line)
5603 struct commit *commit = line->data;
5605 string_copy_rev(view->ref, commit->id);
5606 string_copy_rev(ref_commit, view->ref);
5609 static struct view_ops main_ops = {
5622 * Unicode / UTF-8 handling
5624 * NOTE: Much of the following code for dealing with unicode is derived from
5625 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5626 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5629 /* I've (over)annotated a lot of code snippets because I am not entirely
5630 * confident that the approach taken by this small UTF-8 interface is correct.
5634 unicode_width(unsigned long c)
5637 (c <= 0x115f /* Hangul Jamo */
5640 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5642 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5643 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5644 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5645 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5646 || (c >= 0xffe0 && c <= 0xffe6)
5647 || (c >= 0x20000 && c <= 0x2fffd)
5648 || (c >= 0x30000 && c <= 0x3fffd)))
5652 return opt_tab_size;
5657 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5658 * Illegal bytes are set one. */
5659 static const unsigned char utf8_bytes[256] = {
5660 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,
5661 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,
5662 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,
5663 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,
5664 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,
5665 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,
5666 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,
5667 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,
5670 /* Decode UTF-8 multi-byte representation into a unicode character. */
5671 static inline unsigned long
5672 utf8_to_unicode(const char *string, size_t length)
5674 unsigned long unicode;
5678 unicode = string[0];
5681 unicode = (string[0] & 0x1f) << 6;
5682 unicode += (string[1] & 0x3f);
5685 unicode = (string[0] & 0x0f) << 12;
5686 unicode += ((string[1] & 0x3f) << 6);
5687 unicode += (string[2] & 0x3f);
5690 unicode = (string[0] & 0x0f) << 18;
5691 unicode += ((string[1] & 0x3f) << 12);
5692 unicode += ((string[2] & 0x3f) << 6);
5693 unicode += (string[3] & 0x3f);
5696 unicode = (string[0] & 0x0f) << 24;
5697 unicode += ((string[1] & 0x3f) << 18);
5698 unicode += ((string[2] & 0x3f) << 12);
5699 unicode += ((string[3] & 0x3f) << 6);
5700 unicode += (string[4] & 0x3f);
5703 unicode = (string[0] & 0x01) << 30;
5704 unicode += ((string[1] & 0x3f) << 24);
5705 unicode += ((string[2] & 0x3f) << 18);
5706 unicode += ((string[3] & 0x3f) << 12);
5707 unicode += ((string[4] & 0x3f) << 6);
5708 unicode += (string[5] & 0x3f);
5711 die("Invalid unicode length");
5714 /* Invalid characters could return the special 0xfffd value but NUL
5715 * should be just as good. */
5716 return unicode > 0xffff ? 0 : unicode;
5719 /* Calculates how much of string can be shown within the given maximum width
5720 * and sets trimmed parameter to non-zero value if all of string could not be
5721 * shown. If the reserve flag is TRUE, it will reserve at least one
5722 * trailing character, which can be useful when drawing a delimiter.
5724 * Returns the number of bytes to output from string to satisfy max_width. */
5726 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5728 const char *start = string;
5729 const char *end = strchr(string, '\0');
5730 unsigned char last_bytes = 0;
5731 size_t last_ucwidth = 0;
5736 while (string < end) {
5737 int c = *(unsigned char *) string;
5738 unsigned char bytes = utf8_bytes[c];
5740 unsigned long unicode;
5742 if (string + bytes > end)
5745 /* Change representation to figure out whether
5746 * it is a single- or double-width character. */
5748 unicode = utf8_to_unicode(string, bytes);
5749 /* FIXME: Graceful handling of invalid unicode character. */
5753 ucwidth = unicode_width(unicode);
5755 if (*width > max_width) {
5758 if (reserve && *width == max_width) {
5759 string -= last_bytes;
5760 *width -= last_ucwidth;
5767 last_ucwidth = ucwidth;
5770 return string - start;
5778 /* Whether or not the curses interface has been initialized. */
5779 static bool cursed = FALSE;
5781 /* The status window is used for polling keystrokes. */
5782 static WINDOW *status_win;
5784 static bool status_empty = TRUE;
5786 /* Update status and title window. */
5788 report(const char *msg, ...)
5790 struct view *view = display[current_view];
5796 char buf[SIZEOF_STR];
5799 va_start(args, msg);
5800 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5801 buf[sizeof(buf) - 1] = 0;
5802 buf[sizeof(buf) - 2] = '.';
5803 buf[sizeof(buf) - 3] = '.';
5804 buf[sizeof(buf) - 4] = '.';
5810 if (!status_empty || *msg) {
5813 va_start(args, msg);
5815 wmove(status_win, 0, 0);
5817 vwprintw(status_win, msg, args);
5818 status_empty = FALSE;
5820 status_empty = TRUE;
5822 wclrtoeol(status_win);
5823 wrefresh(status_win);
5828 update_view_title(view);
5829 update_display_cursor(view);
5832 /* Controls when nodelay should be in effect when polling user input. */
5834 set_nonblocking_input(bool loading)
5836 static unsigned int loading_views;
5838 if ((loading == FALSE && loading_views-- == 1) ||
5839 (loading == TRUE && loading_views++ == 0))
5840 nodelay(status_win, loading);
5848 /* Initialize the curses library */
5849 if (isatty(STDIN_FILENO)) {
5850 cursed = !!initscr();
5853 /* Leave stdin and stdout alone when acting as a pager. */
5854 opt_tty = fopen("/dev/tty", "r+");
5856 die("Failed to open /dev/tty");
5857 cursed = !!newterm(NULL, opt_tty, opt_tty);
5861 die("Failed to initialize curses");
5863 nonl(); /* Tell curses not to do NL->CR/NL on output */
5864 cbreak(); /* Take input chars one at a time, no wait for \n */
5865 noecho(); /* Don't echo input */
5866 leaveok(stdscr, TRUE);
5871 getmaxyx(stdscr, y, x);
5872 status_win = newwin(1, 0, y - 1, 0);
5874 die("Failed to create status window");
5876 /* Enable keyboard mapping */
5877 keypad(status_win, TRUE);
5878 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5880 TABSIZE = opt_tab_size;
5881 if (opt_line_graphics) {
5882 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5887 prompt_yesno(const char *prompt)
5889 enum { WAIT, STOP, CANCEL } status = WAIT;
5890 bool answer = FALSE;
5892 while (status == WAIT) {
5898 foreach_view (view, i)
5903 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
5904 wclrtoeol(status_win);
5906 /* Refresh, accept single keystroke of input */
5907 key = wgetch(status_win);
5931 /* Clear the status window */
5932 status_empty = FALSE;
5939 read_prompt(const char *prompt)
5941 enum { READING, STOP, CANCEL } status = READING;
5942 static char buf[SIZEOF_STR];
5945 while (status == READING) {
5951 foreach_view (view, i)
5956 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5957 wclrtoeol(status_win);
5959 /* Refresh, accept single keystroke of input */
5960 key = wgetch(status_win);
5965 status = pos ? STOP : CANCEL;
5983 if (pos >= sizeof(buf)) {
5984 report("Input string too long");
5989 buf[pos++] = (char) key;
5993 /* Clear the status window */
5994 status_empty = FALSE;
5997 if (status == CANCEL)
6006 * Repository properties
6010 git_properties(const char **argv, const char *separators,
6011 int (*read_property)(char *, size_t, char *, size_t))
6015 if (init_io_rd(&io, argv, NULL, FORMAT_NONE))
6016 return read_properties(&io, separators, read_property);
6020 static struct ref *refs = NULL;
6021 static size_t refs_alloc = 0;
6022 static size_t refs_size = 0;
6024 /* Id <-> ref store */
6025 static struct ref ***id_refs = NULL;
6026 static size_t id_refs_alloc = 0;
6027 static size_t id_refs_size = 0;
6030 compare_refs(const void *ref1_, const void *ref2_)
6032 const struct ref *ref1 = *(const struct ref **)ref1_;
6033 const struct ref *ref2 = *(const struct ref **)ref2_;
6035 if (ref1->tag != ref2->tag)
6036 return ref2->tag - ref1->tag;
6037 if (ref1->ltag != ref2->ltag)
6038 return ref2->ltag - ref2->ltag;
6039 if (ref1->head != ref2->head)
6040 return ref2->head - ref1->head;
6041 if (ref1->tracked != ref2->tracked)
6042 return ref2->tracked - ref1->tracked;
6043 if (ref1->remote != ref2->remote)
6044 return ref2->remote - ref1->remote;
6045 return strcmp(ref1->name, ref2->name);
6048 static struct ref **
6049 get_refs(const char *id)
6051 struct ref ***tmp_id_refs;
6052 struct ref **ref_list = NULL;
6053 size_t ref_list_alloc = 0;
6054 size_t ref_list_size = 0;
6057 for (i = 0; i < id_refs_size; i++)
6058 if (!strcmp(id, id_refs[i][0]->id))
6061 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6066 id_refs = tmp_id_refs;
6068 for (i = 0; i < refs_size; i++) {
6071 if (strcmp(id, refs[i].id))
6074 tmp = realloc_items(ref_list, &ref_list_alloc,
6075 ref_list_size + 1, sizeof(*ref_list));
6083 ref_list[ref_list_size] = &refs[i];
6084 /* XXX: The properties of the commit chains ensures that we can
6085 * safely modify the shared ref. The repo references will
6086 * always be similar for the same id. */
6087 ref_list[ref_list_size]->next = 1;
6093 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6094 ref_list[ref_list_size - 1]->next = 0;
6095 id_refs[id_refs_size++] = ref_list;
6102 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6107 bool remote = FALSE;
6108 bool tracked = FALSE;
6109 bool check_replace = FALSE;
6112 if (!prefixcmp(name, "refs/tags/")) {
6113 if (!suffixcmp(name, namelen, "^{}")) {
6116 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6117 check_replace = TRUE;
6123 namelen -= STRING_SIZE("refs/tags/");
6124 name += STRING_SIZE("refs/tags/");
6126 } else if (!prefixcmp(name, "refs/remotes/")) {
6128 namelen -= STRING_SIZE("refs/remotes/");
6129 name += STRING_SIZE("refs/remotes/");
6130 tracked = !strcmp(opt_remote, name);
6132 } else if (!prefixcmp(name, "refs/heads/")) {
6133 namelen -= STRING_SIZE("refs/heads/");
6134 name += STRING_SIZE("refs/heads/");
6135 head = !strncmp(opt_head, name, namelen);
6137 } else if (!strcmp(name, "HEAD")) {
6138 string_ncopy(opt_head_rev, id, idlen);
6142 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6143 /* it's an annotated tag, replace the previous sha1 with the
6144 * resolved commit id; relies on the fact git-ls-remote lists
6145 * the commit id of an annotated tag right before the commit id
6147 refs[refs_size - 1].ltag = ltag;
6148 string_copy_rev(refs[refs_size - 1].id, id);
6152 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6156 ref = &refs[refs_size++];
6157 ref->name = malloc(namelen + 1);
6161 strncpy(ref->name, name, namelen);
6162 ref->name[namelen] = 0;
6166 ref->remote = remote;
6167 ref->tracked = tracked;
6168 string_copy_rev(ref->id, id);
6176 static const char *ls_remote_argv[SIZEOF_ARG] = {
6177 "git", "ls-remote", ".", NULL
6179 static bool init = FALSE;
6182 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6189 while (refs_size > 0)
6190 free(refs[--refs_size].name);
6191 while (id_refs_size > 0)
6192 free(id_refs[--id_refs_size]);
6194 return git_properties(ls_remote_argv, "\t", read_ref);
6198 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6200 if (!strcmp(name, "i18n.commitencoding"))
6201 string_ncopy(opt_encoding, value, valuelen);
6203 if (!strcmp(name, "core.editor"))
6204 string_ncopy(opt_editor, value, valuelen);
6206 /* branch.<head>.remote */
6208 !strncmp(name, "branch.", 7) &&
6209 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6210 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6211 string_ncopy(opt_remote, value, valuelen);
6213 if (*opt_head && *opt_remote &&
6214 !strncmp(name, "branch.", 7) &&
6215 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6216 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6217 size_t from = strlen(opt_remote);
6219 if (!prefixcmp(value, "refs/heads/")) {
6220 value += STRING_SIZE("refs/heads/");
6221 valuelen -= STRING_SIZE("refs/heads/");
6224 if (!string_format_from(opt_remote, &from, "/%s", value))
6232 load_git_config(void)
6234 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6236 return git_properties(config_list_argv, "=", read_repo_config_option);
6240 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6242 if (!opt_git_dir[0]) {
6243 string_ncopy(opt_git_dir, name, namelen);
6245 } else if (opt_is_inside_work_tree == -1) {
6246 /* This can be 3 different values depending on the
6247 * version of git being used. If git-rev-parse does not
6248 * understand --is-inside-work-tree it will simply echo
6249 * the option else either "true" or "false" is printed.
6250 * Default to true for the unknown case. */
6251 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6253 string_ncopy(opt_cdup, name, namelen);
6260 load_repo_info(void)
6262 const char *head_argv[] = {
6263 "git", "symbolic-ref", "HEAD", NULL
6265 const char *rev_parse_argv[] = {
6266 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6270 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6271 chomp_string(opt_head);
6272 if (!prefixcmp(opt_head, "refs/heads/")) {
6273 char *offset = opt_head + STRING_SIZE("refs/heads/");
6275 memmove(opt_head, offset, strlen(offset) + 1);
6279 return git_properties(rev_parse_argv, "=", read_repo_info);
6283 read_properties(struct io *io, const char *separators,
6284 int (*read_property)(char *, size_t, char *, size_t))
6292 while (state == OK && (name = io_get(io, '\n', TRUE))) {
6297 name = chomp_string(name);
6298 namelen = strcspn(name, separators);
6300 if (name[namelen]) {
6302 value = chomp_string(name + namelen + 1);
6303 valuelen = strlen(value);
6310 state = read_property(name, namelen, value, valuelen);
6313 if (state != ERR && io_error(io))
6325 static void __NORETURN
6328 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6334 static void __NORETURN
6335 die(const char *err, ...)
6341 va_start(args, err);
6342 fputs("tig: ", stderr);
6343 vfprintf(stderr, err, args);
6344 fputs("\n", stderr);
6351 warn(const char *msg, ...)
6355 va_start(args, msg);
6356 fputs("tig warning: ", stderr);
6357 vfprintf(stderr, msg, args);
6358 fputs("\n", stderr);
6363 main(int argc, const char *argv[])
6365 const char **run_argv = NULL;
6367 enum request request;
6370 signal(SIGINT, quit);
6372 if (setlocale(LC_ALL, "")) {
6373 char *codeset = nl_langinfo(CODESET);
6375 string_ncopy(opt_codeset, codeset, strlen(codeset));
6378 if (load_repo_info() == ERR)
6379 die("Failed to load repo info.");
6381 if (load_options() == ERR)
6382 die("Failed to load user config.");
6384 if (load_git_config() == ERR)
6385 die("Failed to load repo config.");
6387 request = parse_options(argc, argv, &run_argv);
6388 if (request == REQ_NONE)
6391 /* Require a git repository unless when running in pager mode. */
6392 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6393 die("Not a git repository");
6395 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6398 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6399 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6400 if (opt_iconv == ICONV_NONE)
6401 die("Failed to initialize character set conversion");
6404 if (load_refs() == ERR)
6405 die("Failed to load refs.");
6407 foreach_view (view, i)
6408 argv_from_env(view->ops->argv, view->cmd_env);
6412 if (request == REQ_VIEW_PAGER || run_argv) {
6413 if (request == REQ_VIEW_PAGER)
6414 io_open(&VIEW(request)->io, "");
6415 else if (!prepare_update(VIEW(request), run_argv, NULL, FORMAT_NONE))
6416 die("Failed to format arguments");
6417 open_view(NULL, request, OPEN_PREPARED);
6421 while (view_driver(display[current_view], request)) {
6425 foreach_view (view, i)
6427 view = display[current_view];
6429 /* Refresh, accept single keystroke of input */
6430 key = wgetch(status_win);
6432 /* wgetch() with nodelay() enabled returns ERR when there's no
6439 request = get_keybinding(view->keymap, key);
6441 /* Some low-level request handling. This keeps access to
6442 * status_win restricted. */
6446 char *cmd = read_prompt(":");
6449 struct view *next = VIEW(REQ_VIEW_PAGER);
6450 const char *argv[SIZEOF_ARG] = { "git" };
6453 /* When running random commands, initially show the
6454 * command in the title. However, it maybe later be
6455 * overwritten if a commit line is selected. */
6456 string_ncopy(next->ref, cmd, strlen(cmd));
6458 if (!argv_from_string(argv, &argc, cmd)) {
6459 report("Too many arguments");
6460 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6461 report("Failed to format command");
6463 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6471 case REQ_SEARCH_BACK:
6473 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6474 char *search = read_prompt(prompt);
6477 string_ncopy(opt_search, search, strlen(search));
6482 case REQ_SCREEN_RESIZE:
6486 getmaxyx(stdscr, height, width);
6488 /* Resize the status view and let the view driver take
6489 * care of resizing the displayed views. */
6490 wresize(status_win, 1, width);
6491 mvwin(status_win, height - 1, 0);
6492 wrefresh(status_win);