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. */
316 IO_AP, /* Append fork+exec output to file. */
320 enum io_type type; /* The requested type of pipe. */
321 const char *dir; /* Directory from which to execute. */
322 pid_t pid; /* Pipe for reading or writing. */
323 int pipe; /* Pipe end for reading or writing. */
324 int error; /* Error status. */
325 const char *argv[SIZEOF_ARG]; /* Shell command arguments. */
326 char *buf; /* Read buffer. */
327 size_t bufalloc; /* Allocated buffer size. */
328 size_t bufsize; /* Buffer content size. */
329 char *bufpos; /* Current buffer position. */
330 unsigned int eof:1; /* Has end of file been reached. */
334 reset_io(struct io *io)
338 io->buf = io->bufpos = NULL;
339 io->bufalloc = io->bufsize = 0;
345 init_io(struct io *io, const char *dir, enum io_type type)
353 init_io_rd(struct io *io, const char *argv[], const char *dir,
354 enum format_flags flags)
356 init_io(io, dir, IO_RD);
357 return format_argv(io->argv, argv, flags);
361 io_open(struct io *io, const char *name)
363 init_io(io, NULL, IO_FD);
364 io->pipe = *name ? open(name, O_RDONLY) : STDIN_FILENO;
365 return io->pipe != -1;
369 kill_io(struct io *io)
371 return kill(io->pid, SIGKILL) != -1;
375 done_io(struct io *io)
386 pid_t waiting = waitpid(pid, &status, 0);
391 report("waitpid failed (%s)", strerror(errno));
395 return waiting == pid &&
396 !WIFSIGNALED(status) &&
398 !WEXITSTATUS(status);
405 start_io(struct io *io)
407 int pipefds[2] = { -1, -1 };
409 if (io->type == IO_FD)
412 if ((io->type == IO_RD || io->type == IO_WR) &&
415 else if (io->type == IO_AP)
416 pipefds[1] = io->pipe;
418 if ((io->pid = fork())) {
419 if (pipefds[!(io->type == IO_WR)] != -1)
420 close(pipefds[!(io->type == IO_WR)]);
422 io->pipe = pipefds[!!(io->type == IO_WR)];
427 if (io->type != IO_FG) {
428 int devnull = open("/dev/null", O_RDWR);
429 int readfd = io->type == IO_WR ? pipefds[0] : devnull;
430 int writefd = (io->type == IO_RD || io->type == IO_AP)
431 ? pipefds[1] : devnull;
433 dup2(readfd, STDIN_FILENO);
434 dup2(writefd, STDOUT_FILENO);
435 dup2(devnull, STDERR_FILENO);
438 if (pipefds[0] != -1)
440 if (pipefds[1] != -1)
444 if (io->dir && *io->dir && chdir(io->dir) == -1)
445 die("Failed to change directory: %s", strerror(errno));
447 execvp(io->argv[0], (char *const*) io->argv);
448 die("Failed to execute program: %s", strerror(errno));
451 if (pipefds[!!(io->type == IO_WR)] != -1)
452 close(pipefds[!!(io->type == IO_WR)]);
457 run_io(struct io *io, const char **argv, const char *dir, enum io_type type)
459 init_io(io, dir, type);
460 if (!format_argv(io->argv, argv, FORMAT_NONE))
466 run_io_do(struct io *io)
468 return start_io(io) && done_io(io);
472 run_io_bg(const char **argv)
476 init_io(&io, NULL, IO_BG);
477 if (!format_argv(io.argv, argv, FORMAT_NONE))
479 return run_io_do(&io);
483 run_io_fg(const char **argv, const char *dir)
487 init_io(&io, dir, IO_FG);
488 if (!format_argv(io.argv, argv, FORMAT_NONE))
490 return run_io_do(&io);
494 run_io_append(const char **argv, enum format_flags flags, int fd)
498 init_io(&io, NULL, IO_AP);
500 if (format_argv(io.argv, argv, flags))
501 return run_io_do(&io);
507 run_io_rd(struct io *io, const char **argv, enum format_flags flags)
509 return init_io_rd(io, argv, NULL, flags) && start_io(io);
513 io_eof(struct io *io)
519 io_error(struct io *io)
525 io_strerror(struct io *io)
527 return strerror(io->error);
531 io_can_read(struct io *io)
533 struct timeval tv = { 0, 500 };
537 FD_SET(io->pipe, &fds);
539 return select(io->pipe + 1, &fds, NULL, NULL, &tv) > 0;
543 io_read(struct io *io, void *buf, size_t bufsize)
546 ssize_t readsize = read(io->pipe, buf, bufsize);
548 if (readsize < 0 && (errno == EAGAIN || errno == EINTR))
550 else if (readsize == -1)
552 else if (readsize == 0)
559 io_get(struct io *io, int c, bool can_read)
565 io->buf = io->bufpos = malloc(BUFSIZ);
568 io->bufalloc = BUFSIZ;
573 if (io->bufsize > 0) {
574 eol = memchr(io->bufpos, c, io->bufsize);
576 char *line = io->bufpos;
579 io->bufpos = eol + 1;
580 io->bufsize -= io->bufpos - line;
587 io->bufpos[io->bufsize] = 0;
597 if (io->bufsize > 0 && io->bufpos > io->buf)
598 memmove(io->buf, io->bufpos, io->bufsize);
600 io->bufpos = io->buf;
601 readsize = io_read(io, io->buf + io->bufsize, io->bufalloc - io->bufsize);
604 io->bufsize += readsize;
609 io_write(struct io *io, const void *buf, size_t bufsize)
613 while (!io_error(io) && written < bufsize) {
616 size = write(io->pipe, buf + written, bufsize - written);
617 if (size < 0 && (errno == EAGAIN || errno == EINTR))
625 return written == bufsize;
629 run_io_buf(const char **argv, char buf[], size_t bufsize)
634 if (!run_io_rd(&io, argv, FORMAT_NONE))
637 io.buf = io.bufpos = buf;
638 io.bufalloc = bufsize;
639 error = !io_get(&io, '\n', TRUE) && io_error(&io);
642 return done_io(&io) || error;
645 static int read_properties(struct io *io, const char *separators, int (*read)(char *, size_t, char *, size_t));
652 /* XXX: Keep the view request first and in sync with views[]. */ \
653 REQ_GROUP("View switching") \
654 REQ_(VIEW_MAIN, "Show main view"), \
655 REQ_(VIEW_DIFF, "Show diff view"), \
656 REQ_(VIEW_LOG, "Show log view"), \
657 REQ_(VIEW_TREE, "Show tree view"), \
658 REQ_(VIEW_BLOB, "Show blob view"), \
659 REQ_(VIEW_BLAME, "Show blame view"), \
660 REQ_(VIEW_HELP, "Show help page"), \
661 REQ_(VIEW_PAGER, "Show pager view"), \
662 REQ_(VIEW_STATUS, "Show status view"), \
663 REQ_(VIEW_STAGE, "Show stage view"), \
665 REQ_GROUP("View manipulation") \
666 REQ_(ENTER, "Enter current line and scroll"), \
667 REQ_(NEXT, "Move to next"), \
668 REQ_(PREVIOUS, "Move to previous"), \
669 REQ_(VIEW_NEXT, "Move focus to next view"), \
670 REQ_(REFRESH, "Reload and refresh"), \
671 REQ_(MAXIMIZE, "Maximize the current view"), \
672 REQ_(VIEW_CLOSE, "Close the current view"), \
673 REQ_(QUIT, "Close all views and quit"), \
675 REQ_GROUP("View specific requests") \
676 REQ_(STATUS_UPDATE, "Update file status"), \
677 REQ_(STATUS_REVERT, "Revert file changes"), \
678 REQ_(STATUS_MERGE, "Merge file using external tool"), \
679 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
680 REQ_(TREE_PARENT, "Switch to parent directory in tree view"), \
682 REQ_GROUP("Cursor navigation") \
683 REQ_(MOVE_UP, "Move cursor one line up"), \
684 REQ_(MOVE_DOWN, "Move cursor one line down"), \
685 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
686 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
687 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
688 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
690 REQ_GROUP("Scrolling") \
691 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
692 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
693 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
694 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
696 REQ_GROUP("Searching") \
697 REQ_(SEARCH, "Search the view"), \
698 REQ_(SEARCH_BACK, "Search backwards in the view"), \
699 REQ_(FIND_NEXT, "Find next search match"), \
700 REQ_(FIND_PREV, "Find previous search match"), \
702 REQ_GROUP("Option manipulation") \
703 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
704 REQ_(TOGGLE_DATE, "Toggle date display"), \
705 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
706 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
707 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
710 REQ_(PROMPT, "Bring up the prompt"), \
711 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
712 REQ_(SHOW_VERSION, "Show version information"), \
713 REQ_(STOP_LOADING, "Stop all loading views"), \
714 REQ_(EDIT, "Open in editor"), \
715 REQ_(NONE, "Do nothing")
718 /* User action requests. */
720 #define REQ_GROUP(help)
721 #define REQ_(req, help) REQ_##req
723 /* Offset all requests to avoid conflicts with ncurses getch values. */
724 REQ_OFFSET = KEY_MAX + 1,
731 struct request_info {
732 enum request request;
738 static struct request_info req_info[] = {
739 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
740 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
747 get_request(const char *name)
749 int namelen = strlen(name);
752 for (i = 0; i < ARRAY_SIZE(req_info); i++)
753 if (req_info[i].namelen == namelen &&
754 !string_enum_compare(req_info[i].name, name, namelen))
755 return req_info[i].request;
765 static const char usage[] =
766 "tig " TIG_VERSION " (" __DATE__ ")\n"
768 "Usage: tig [options] [revs] [--] [paths]\n"
769 " or: tig show [options] [revs] [--] [paths]\n"
770 " or: tig blame [rev] path\n"
772 " or: tig < [git command output]\n"
775 " -v, --version Show version and exit\n"
776 " -h, --help Show help message and exit";
778 /* Option and state variables. */
779 static bool opt_date = TRUE;
780 static bool opt_author = TRUE;
781 static bool opt_line_number = FALSE;
782 static bool opt_line_graphics = TRUE;
783 static bool opt_rev_graph = FALSE;
784 static bool opt_show_refs = TRUE;
785 static int opt_num_interval = NUMBER_INTERVAL;
786 static int opt_tab_size = TAB_SIZE;
787 static int opt_author_cols = AUTHOR_COLS-1;
788 static char opt_path[SIZEOF_STR] = "";
789 static char opt_file[SIZEOF_STR] = "";
790 static char opt_ref[SIZEOF_REF] = "";
791 static char opt_head[SIZEOF_REF] = "";
792 static char opt_head_rev[SIZEOF_REV] = "";
793 static char opt_remote[SIZEOF_REF] = "";
794 static char opt_encoding[20] = "UTF-8";
795 static bool opt_utf8 = TRUE;
796 static char opt_codeset[20] = "UTF-8";
797 static iconv_t opt_iconv = ICONV_NONE;
798 static char opt_search[SIZEOF_STR] = "";
799 static char opt_cdup[SIZEOF_STR] = "";
800 static char opt_git_dir[SIZEOF_STR] = "";
801 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
802 static char opt_editor[SIZEOF_STR] = "";
803 static FILE *opt_tty = NULL;
805 #define is_initial_commit() (!*opt_head_rev)
806 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || !strcmp(opt_head_rev, (rev)))
809 parse_options(int argc, const char *argv[], const char ***run_argv)
811 enum request request = REQ_VIEW_MAIN;
812 const char *subcommand;
813 bool seen_dashdash = FALSE;
814 /* XXX: This is vulnerable to the user overriding options
815 * required for the main view parser. */
816 static const char *custom_argv[SIZEOF_ARG] = {
817 "git", "log", "--no-color", "--pretty=raw", "--parents",
822 if (!isatty(STDIN_FILENO))
823 return REQ_VIEW_PAGER;
826 return REQ_VIEW_MAIN;
828 subcommand = argv[1];
829 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
830 if (!strcmp(subcommand, "-S"))
831 warn("`-S' has been deprecated; use `tig status' instead");
833 warn("ignoring arguments after `%s'", subcommand);
834 return REQ_VIEW_STATUS;
836 } else if (!strcmp(subcommand, "blame")) {
837 if (argc <= 2 || argc > 4)
838 die("invalid number of options to blame\n\n%s", usage);
842 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
846 string_ncopy(opt_file, argv[i], strlen(argv[i]));
847 return REQ_VIEW_BLAME;
849 } else if (!strcmp(subcommand, "show")) {
850 request = REQ_VIEW_DIFF;
852 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
853 request = subcommand[0] == 'l' ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
854 warn("`tig %s' has been deprecated", subcommand);
861 custom_argv[1] = subcommand;
865 for (i = 1 + !!subcommand; i < argc; i++) {
866 const char *opt = argv[i];
868 if (seen_dashdash || !strcmp(opt, "--")) {
869 seen_dashdash = TRUE;
871 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
872 printf("tig version %s\n", TIG_VERSION);
875 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
876 printf("%s\n", usage);
880 custom_argv[j++] = opt;
881 if (j >= ARRAY_SIZE(custom_argv))
882 die("command too long");
885 custom_argv[j] = NULL;
886 *run_argv = custom_argv;
893 * Line-oriented content detection.
897 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
898 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
899 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
900 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
901 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
902 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
903 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
904 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
905 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
906 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
907 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
908 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
909 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
910 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
911 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
912 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
913 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
914 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
915 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
916 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
917 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
918 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
919 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
920 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
921 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
922 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
923 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
924 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
925 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
926 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
927 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
928 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
929 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
930 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
931 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
932 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
933 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
934 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
935 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
936 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
937 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
938 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
939 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
940 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
941 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
942 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
943 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
944 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
945 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
946 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
947 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
948 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
949 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
950 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
953 #define LINE(type, line, fg, bg, attr) \
961 const char *name; /* Option name. */
962 int namelen; /* Size of option name. */
963 const char *line; /* The start of line to match. */
964 int linelen; /* Size of string to match. */
965 int fg, bg, attr; /* Color and text attributes for the lines. */
968 static struct line_info line_info[] = {
969 #define LINE(type, line, fg, bg, attr) \
970 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
975 static enum line_type
976 get_line_type(const char *line)
978 int linelen = strlen(line);
981 for (type = 0; type < ARRAY_SIZE(line_info); type++)
982 /* Case insensitive search matches Signed-off-by lines better. */
983 if (linelen >= line_info[type].linelen &&
984 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
991 get_line_attr(enum line_type type)
993 assert(type < ARRAY_SIZE(line_info));
994 return COLOR_PAIR(type) | line_info[type].attr;
997 static struct line_info *
998 get_line_info(const char *name)
1000 size_t namelen = strlen(name);
1001 enum line_type type;
1003 for (type = 0; type < ARRAY_SIZE(line_info); type++)
1004 if (namelen == line_info[type].namelen &&
1005 !string_enum_compare(line_info[type].name, name, namelen))
1006 return &line_info[type];
1014 int default_bg = line_info[LINE_DEFAULT].bg;
1015 int default_fg = line_info[LINE_DEFAULT].fg;
1016 enum line_type type;
1020 if (assume_default_colors(default_fg, default_bg) == ERR) {
1021 default_bg = COLOR_BLACK;
1022 default_fg = COLOR_WHITE;
1025 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
1026 struct line_info *info = &line_info[type];
1027 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
1028 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
1030 init_pair(type, fg, bg);
1035 enum line_type type;
1038 unsigned int selected:1;
1039 unsigned int dirty:1;
1040 unsigned int cleareol:1;
1042 void *data; /* User data */
1052 enum request request;
1055 static struct keybinding default_keybindings[] = {
1056 /* View switching */
1057 { 'm', REQ_VIEW_MAIN },
1058 { 'd', REQ_VIEW_DIFF },
1059 { 'l', REQ_VIEW_LOG },
1060 { 't', REQ_VIEW_TREE },
1061 { 'f', REQ_VIEW_BLOB },
1062 { 'B', REQ_VIEW_BLAME },
1063 { 'p', REQ_VIEW_PAGER },
1064 { 'h', REQ_VIEW_HELP },
1065 { 'S', REQ_VIEW_STATUS },
1066 { 'c', REQ_VIEW_STAGE },
1068 /* View manipulation */
1069 { 'q', REQ_VIEW_CLOSE },
1070 { KEY_TAB, REQ_VIEW_NEXT },
1071 { KEY_RETURN, REQ_ENTER },
1072 { KEY_UP, REQ_PREVIOUS },
1073 { KEY_DOWN, REQ_NEXT },
1074 { 'R', REQ_REFRESH },
1075 { KEY_F(5), REQ_REFRESH },
1076 { 'O', REQ_MAXIMIZE },
1078 /* Cursor navigation */
1079 { 'k', REQ_MOVE_UP },
1080 { 'j', REQ_MOVE_DOWN },
1081 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1082 { KEY_END, REQ_MOVE_LAST_LINE },
1083 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1084 { ' ', REQ_MOVE_PAGE_DOWN },
1085 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1086 { 'b', REQ_MOVE_PAGE_UP },
1087 { '-', REQ_MOVE_PAGE_UP },
1090 { KEY_IC, REQ_SCROLL_LINE_UP },
1091 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1092 { 'w', REQ_SCROLL_PAGE_UP },
1093 { 's', REQ_SCROLL_PAGE_DOWN },
1096 { '/', REQ_SEARCH },
1097 { '?', REQ_SEARCH_BACK },
1098 { 'n', REQ_FIND_NEXT },
1099 { 'N', REQ_FIND_PREV },
1103 { 'z', REQ_STOP_LOADING },
1104 { 'v', REQ_SHOW_VERSION },
1105 { 'r', REQ_SCREEN_REDRAW },
1106 { '.', REQ_TOGGLE_LINENO },
1107 { 'D', REQ_TOGGLE_DATE },
1108 { 'A', REQ_TOGGLE_AUTHOR },
1109 { 'g', REQ_TOGGLE_REV_GRAPH },
1110 { 'F', REQ_TOGGLE_REFS },
1111 { ':', REQ_PROMPT },
1112 { 'u', REQ_STATUS_UPDATE },
1113 { '!', REQ_STATUS_REVERT },
1114 { 'M', REQ_STATUS_MERGE },
1115 { '@', REQ_STAGE_NEXT },
1116 { ',', REQ_TREE_PARENT },
1120 #define KEYMAP_INFO \
1134 #define KEYMAP_(name) KEYMAP_##name
1139 static struct int_map keymap_table[] = {
1140 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
1145 #define set_keymap(map, name) \
1146 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
1148 struct keybinding_table {
1149 struct keybinding *data;
1153 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1156 add_keybinding(enum keymap keymap, enum request request, int key)
1158 struct keybinding_table *table = &keybindings[keymap];
1160 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1162 die("Failed to allocate keybinding");
1163 table->data[table->size].alias = key;
1164 table->data[table->size++].request = request;
1167 /* Looks for a key binding first in the given map, then in the generic map, and
1168 * lastly in the default keybindings. */
1170 get_keybinding(enum keymap keymap, int key)
1174 for (i = 0; i < keybindings[keymap].size; i++)
1175 if (keybindings[keymap].data[i].alias == key)
1176 return keybindings[keymap].data[i].request;
1178 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1179 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1180 return keybindings[KEYMAP_GENERIC].data[i].request;
1182 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1183 if (default_keybindings[i].alias == key)
1184 return default_keybindings[i].request;
1186 return (enum request) key;
1195 static struct key key_table[] = {
1196 { "Enter", KEY_RETURN },
1198 { "Backspace", KEY_BACKSPACE },
1200 { "Escape", KEY_ESC },
1201 { "Left", KEY_LEFT },
1202 { "Right", KEY_RIGHT },
1204 { "Down", KEY_DOWN },
1205 { "Insert", KEY_IC },
1206 { "Delete", KEY_DC },
1208 { "Home", KEY_HOME },
1210 { "PageUp", KEY_PPAGE },
1211 { "PageDown", KEY_NPAGE },
1221 { "F10", KEY_F(10) },
1222 { "F11", KEY_F(11) },
1223 { "F12", KEY_F(12) },
1227 get_key_value(const char *name)
1231 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1232 if (!strcasecmp(key_table[i].name, name))
1233 return key_table[i].value;
1235 if (strlen(name) == 1 && isprint(*name))
1242 get_key_name(int key_value)
1244 static char key_char[] = "'X'";
1245 const char *seq = NULL;
1248 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1249 if (key_table[key].value == key_value)
1250 seq = key_table[key].name;
1254 isprint(key_value)) {
1255 key_char[1] = (char) key_value;
1259 return seq ? seq : "(no key)";
1263 get_key(enum request request)
1265 static char buf[BUFSIZ];
1272 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1273 struct keybinding *keybinding = &default_keybindings[i];
1275 if (keybinding->request != request)
1278 if (!string_format_from(buf, &pos, "%s%s", sep,
1279 get_key_name(keybinding->alias)))
1280 return "Too many keybindings!";
1287 struct run_request {
1290 const char *argv[SIZEOF_ARG];
1293 static struct run_request *run_request;
1294 static size_t run_requests;
1297 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1299 struct run_request *req;
1301 if (argc >= ARRAY_SIZE(req->argv) - 1)
1304 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1309 req = &run_request[run_requests];
1310 req->keymap = keymap;
1312 req->argv[0] = NULL;
1314 if (!format_argv(req->argv, argv, FORMAT_NONE))
1317 return REQ_NONE + ++run_requests;
1320 static struct run_request *
1321 get_run_request(enum request request)
1323 if (request <= REQ_NONE)
1325 return &run_request[request - REQ_NONE - 1];
1329 add_builtin_run_requests(void)
1331 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1332 const char *gc[] = { "git", "gc", NULL };
1339 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1340 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1344 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1347 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1348 if (req != REQ_NONE)
1349 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1354 * User config file handling.
1357 static struct int_map color_map[] = {
1358 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1370 #define set_color(color, name) \
1371 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1373 static struct int_map attr_map[] = {
1374 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1381 ATTR_MAP(UNDERLINE),
1384 #define set_attribute(attr, name) \
1385 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1387 static int config_lineno;
1388 static bool config_errors;
1389 static const char *config_msg;
1391 /* Wants: object fgcolor bgcolor [attr] */
1393 option_color_command(int argc, const char *argv[])
1395 struct line_info *info;
1397 if (argc != 3 && argc != 4) {
1398 config_msg = "Wrong number of arguments given to color command";
1402 info = get_line_info(argv[0]);
1404 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1405 info = get_line_info("delimiter");
1407 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1408 info = get_line_info("date");
1411 config_msg = "Unknown color name";
1416 if (set_color(&info->fg, argv[1]) == ERR ||
1417 set_color(&info->bg, argv[2]) == ERR) {
1418 config_msg = "Unknown color";
1422 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1423 config_msg = "Unknown attribute";
1430 static bool parse_bool(const char *s)
1432 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1433 !strcmp(s, "yes")) ? TRUE : FALSE;
1437 parse_int(const char *s, int default_value, int min, int max)
1439 int value = atoi(s);
1441 return (value < min || value > max) ? default_value : value;
1444 /* Wants: name = value */
1446 option_set_command(int argc, const char *argv[])
1449 config_msg = "Wrong number of arguments given to set command";
1453 if (strcmp(argv[1], "=")) {
1454 config_msg = "No value assigned";
1458 if (!strcmp(argv[0], "show-author")) {
1459 opt_author = parse_bool(argv[2]);
1463 if (!strcmp(argv[0], "show-date")) {
1464 opt_date = parse_bool(argv[2]);
1468 if (!strcmp(argv[0], "show-rev-graph")) {
1469 opt_rev_graph = parse_bool(argv[2]);
1473 if (!strcmp(argv[0], "show-refs")) {
1474 opt_show_refs = parse_bool(argv[2]);
1478 if (!strcmp(argv[0], "show-line-numbers")) {
1479 opt_line_number = parse_bool(argv[2]);
1483 if (!strcmp(argv[0], "line-graphics")) {
1484 opt_line_graphics = parse_bool(argv[2]);
1488 if (!strcmp(argv[0], "line-number-interval")) {
1489 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1493 if (!strcmp(argv[0], "author-width")) {
1494 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1498 if (!strcmp(argv[0], "tab-size")) {
1499 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1503 if (!strcmp(argv[0], "commit-encoding")) {
1504 const char *arg = argv[2];
1505 int arglen = strlen(arg);
1510 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1511 config_msg = "Unmatched quotation";
1514 arg += 1; arglen -= 2;
1516 string_ncopy(opt_encoding, arg, strlen(arg));
1521 config_msg = "Unknown variable name";
1525 /* Wants: mode request key */
1527 option_bind_command(int argc, const char *argv[])
1529 enum request request;
1534 config_msg = "Wrong number of arguments given to bind command";
1538 if (set_keymap(&keymap, argv[0]) == ERR) {
1539 config_msg = "Unknown key map";
1543 key = get_key_value(argv[1]);
1545 config_msg = "Unknown key";
1549 request = get_request(argv[2]);
1550 if (request == REQ_NONE) {
1551 const char *obsolete[] = { "cherry-pick", "screen-resize" };
1552 size_t namelen = strlen(argv[2]);
1555 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1556 if (namelen == strlen(obsolete[i]) &&
1557 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1558 config_msg = "Obsolete request name";
1563 if (request == REQ_NONE && *argv[2]++ == '!')
1564 request = add_run_request(keymap, key, argc - 2, argv + 2);
1565 if (request == REQ_NONE) {
1566 config_msg = "Unknown request name";
1570 add_keybinding(keymap, request, key);
1576 set_option(const char *opt, char *value)
1578 const char *argv[SIZEOF_ARG];
1581 if (!argv_from_string(argv, &argc, value)) {
1582 config_msg = "Too many option arguments";
1586 if (!strcmp(opt, "color"))
1587 return option_color_command(argc, argv);
1589 if (!strcmp(opt, "set"))
1590 return option_set_command(argc, argv);
1592 if (!strcmp(opt, "bind"))
1593 return option_bind_command(argc, argv);
1595 config_msg = "Unknown option command";
1600 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1605 config_msg = "Internal error";
1607 /* Check for comment markers, since read_properties() will
1608 * only ensure opt and value are split at first " \t". */
1609 optlen = strcspn(opt, "#");
1613 if (opt[optlen] != 0) {
1614 config_msg = "No option value";
1618 /* Look for comment endings in the value. */
1619 size_t len = strcspn(value, "#");
1621 if (len < valuelen) {
1623 value[valuelen] = 0;
1626 status = set_option(opt, value);
1629 if (status == ERR) {
1630 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1631 config_lineno, (int) optlen, opt, config_msg);
1632 config_errors = TRUE;
1635 /* Always keep going if errors are encountered. */
1640 load_option_file(const char *path)
1644 /* It's ok that the file doesn't exist. */
1645 if (!io_open(&io, path))
1649 config_errors = FALSE;
1651 if (read_properties(&io, " \t", read_option) == ERR ||
1652 config_errors == TRUE)
1653 fprintf(stderr, "Errors while loading %s.\n", path);
1659 const char *home = getenv("HOME");
1660 const char *tigrc_user = getenv("TIGRC_USER");
1661 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1662 char buf[SIZEOF_STR];
1664 add_builtin_run_requests();
1666 if (!tigrc_system) {
1667 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1671 load_option_file(tigrc_system);
1674 if (!home || !string_format(buf, "%s/.tigrc", home))
1678 load_option_file(tigrc_user);
1691 /* The display array of active views and the index of the current view. */
1692 static struct view *display[2];
1693 static unsigned int current_view;
1695 /* Reading from the prompt? */
1696 static bool input_mode = FALSE;
1698 #define foreach_displayed_view(view, i) \
1699 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1701 #define displayed_views() (display[1] != NULL ? 2 : 1)
1703 /* Current head and commit ID */
1704 static char ref_blob[SIZEOF_REF] = "";
1705 static char ref_commit[SIZEOF_REF] = "HEAD";
1706 static char ref_head[SIZEOF_REF] = "HEAD";
1709 const char *name; /* View name */
1710 const char *cmd_env; /* Command line set via environment */
1711 const char *id; /* Points to either of ref_{head,commit,blob} */
1713 struct view_ops *ops; /* View operations */
1715 enum keymap keymap; /* What keymap does this view have */
1716 bool git_dir; /* Whether the view requires a git directory. */
1718 char ref[SIZEOF_REF]; /* Hovered commit reference */
1719 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1721 int height, width; /* The width and height of the main window */
1722 WINDOW *win; /* The main window */
1723 WINDOW *title; /* The title window living below the main window */
1726 unsigned long offset; /* Offset of the window top */
1727 unsigned long lineno; /* Current line number */
1730 char grep[SIZEOF_STR]; /* Search string */
1731 regex_t *regex; /* Pre-compiled regex */
1733 /* If non-NULL, points to the view that opened this view. If this view
1734 * is closed tig will switch back to the parent view. */
1735 struct view *parent;
1738 size_t lines; /* Total number of lines */
1739 struct line *line; /* Line index */
1740 size_t line_alloc; /* Total number of allocated lines */
1741 unsigned int digits; /* Number of digits in the lines member. */
1744 struct line *curline; /* Line currently being drawn. */
1745 enum line_type curtype; /* Attribute currently used for drawing. */
1746 unsigned long col; /* Column when drawing. */
1756 /* What type of content being displayed. Used in the title bar. */
1758 /* Default command arguments. */
1760 /* Open and reads in all view content. */
1761 bool (*open)(struct view *view);
1762 /* Read one line; updates view->line. */
1763 bool (*read)(struct view *view, char *data);
1764 /* Draw one line; @lineno must be < view->height. */
1765 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1766 /* Depending on view handle a special requests. */
1767 enum request (*request)(struct view *view, enum request request, struct line *line);
1768 /* Search for regex in a line. */
1769 bool (*grep)(struct view *view, struct line *line);
1771 void (*select)(struct view *view, struct line *line);
1774 static struct view_ops blame_ops;
1775 static struct view_ops blob_ops;
1776 static struct view_ops diff_ops;
1777 static struct view_ops help_ops;
1778 static struct view_ops log_ops;
1779 static struct view_ops main_ops;
1780 static struct view_ops pager_ops;
1781 static struct view_ops stage_ops;
1782 static struct view_ops status_ops;
1783 static struct view_ops tree_ops;
1785 #define VIEW_STR(name, env, ref, ops, map, git) \
1786 { name, #env, ref, ops, map, git }
1788 #define VIEW_(id, name, ops, git, ref) \
1789 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1792 static struct view views[] = {
1793 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1794 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1795 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1796 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1797 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1798 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1799 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1800 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1801 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1802 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1805 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1806 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1808 #define foreach_view(view, i) \
1809 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1811 #define view_is_displayed(view) \
1812 (view == display[0] || view == display[1])
1819 static int line_graphics[] = {
1820 /* LINE_GRAPHIC_VLINE: */ '|'
1824 set_view_attr(struct view *view, enum line_type type)
1826 if (!view->curline->selected && view->curtype != type) {
1827 wattrset(view->win, get_line_attr(type));
1828 wchgat(view->win, -1, 0, type, NULL);
1829 view->curtype = type;
1834 draw_chars(struct view *view, enum line_type type, const char *string,
1835 int max_len, bool use_tilde)
1839 int trimmed = FALSE;
1845 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1847 col = len = strlen(string);
1848 if (len > max_len) {
1852 col = len = max_len;
1857 set_view_attr(view, type);
1858 waddnstr(view->win, string, len);
1859 if (trimmed && use_tilde) {
1860 set_view_attr(view, LINE_DELIMITER);
1861 waddch(view->win, '~');
1869 draw_space(struct view *view, enum line_type type, int max, int spaces)
1871 static char space[] = " ";
1874 spaces = MIN(max, spaces);
1876 while (spaces > 0) {
1877 int len = MIN(spaces, sizeof(space) - 1);
1879 col += draw_chars(view, type, space, spaces, FALSE);
1887 draw_lineno(struct view *view, unsigned int lineno)
1890 int digits3 = view->digits < 3 ? 3 : view->digits;
1891 int max_number = MIN(digits3, STRING_SIZE(number));
1892 int max = view->width - view->col;
1895 if (max < max_number)
1898 lineno += view->offset + 1;
1899 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1900 static char fmt[] = "%1ld";
1902 if (view->digits <= 9)
1903 fmt[1] = '0' + digits3;
1905 if (!string_format(number, fmt, lineno))
1907 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1909 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1913 set_view_attr(view, LINE_DEFAULT);
1914 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1919 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1922 return view->width - view->col <= 0;
1926 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1928 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1929 return view->width - view->col <= 0;
1933 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1935 int max = view->width - view->col;
1941 set_view_attr(view, type);
1942 /* Using waddch() instead of waddnstr() ensures that
1943 * they'll be rendered correctly for the cursor line. */
1944 for (i = 0; i < size; i++)
1945 waddch(view->win, graphic[i]);
1949 waddch(view->win, ' ');
1953 return view->width - view->col <= 0;
1957 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1959 int max = MIN(view->width - view->col, len);
1963 col = draw_chars(view, type, text, max - 1, trim);
1965 col = draw_space(view, type, max - 1, max - 1);
1967 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1968 return view->width - view->col <= 0;
1972 draw_date(struct view *view, struct tm *time)
1974 char buf[DATE_COLS];
1979 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1980 date = timelen ? buf : NULL;
1982 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1986 draw_view_line(struct view *view, unsigned int lineno)
1989 bool selected = (view->offset + lineno == view->lineno);
1992 assert(view_is_displayed(view));
1994 if (view->offset + lineno >= view->lines)
1997 line = &view->line[view->offset + lineno];
1999 wmove(view->win, lineno, 0);
2001 wclrtoeol(view->win);
2003 view->curline = line;
2004 view->curtype = LINE_NONE;
2005 line->selected = FALSE;
2006 line->dirty = line->cleareol = 0;
2009 set_view_attr(view, LINE_CURSOR);
2010 line->selected = TRUE;
2011 view->ops->select(view, line);
2014 scrollok(view->win, FALSE);
2015 draw_ok = view->ops->draw(view, line, lineno);
2016 scrollok(view->win, TRUE);
2022 redraw_view_dirty(struct view *view)
2027 for (lineno = 0; lineno < view->height; lineno++) {
2028 if (view->offset + lineno >= view->lines)
2030 if (!view->line[view->offset + lineno].dirty)
2033 if (!draw_view_line(view, lineno))
2039 redrawwin(view->win);
2041 wnoutrefresh(view->win);
2043 wrefresh(view->win);
2047 redraw_view_from(struct view *view, int lineno)
2049 assert(0 <= lineno && lineno < view->height);
2051 for (; lineno < view->height; lineno++) {
2052 if (!draw_view_line(view, lineno))
2056 redrawwin(view->win);
2058 wnoutrefresh(view->win);
2060 wrefresh(view->win);
2064 redraw_view(struct view *view)
2067 redraw_view_from(view, 0);
2072 update_view_title(struct view *view)
2074 char buf[SIZEOF_STR];
2075 char state[SIZEOF_STR];
2076 size_t bufpos = 0, statelen = 0;
2078 assert(view_is_displayed(view));
2080 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2081 unsigned int view_lines = view->offset + view->height;
2082 unsigned int lines = view->lines
2083 ? MIN(view_lines, view->lines) * 100 / view->lines
2086 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2095 time_t secs = time(NULL) - view->start_time;
2097 /* Three git seconds are a long time ... */
2099 string_format_from(state, &statelen, " loading %lds", secs);
2102 string_format_from(buf, &bufpos, "[%s]", view->name);
2103 if (*view->ref && bufpos < view->width) {
2104 size_t refsize = strlen(view->ref);
2105 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2107 if (minsize < view->width)
2108 refsize = view->width - minsize + 7;
2109 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2112 if (statelen && bufpos < view->width) {
2113 string_format_from(buf, &bufpos, "%s", state);
2116 if (view == display[current_view])
2117 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2119 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2121 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2122 wclrtoeol(view->title);
2123 wmove(view->title, 0, view->width - 1);
2126 wnoutrefresh(view->title);
2128 wrefresh(view->title);
2132 resize_display(void)
2135 struct view *base = display[0];
2136 struct view *view = display[1] ? display[1] : display[0];
2138 /* Setup window dimensions */
2140 getmaxyx(stdscr, base->height, base->width);
2142 /* Make room for the status window. */
2146 /* Horizontal split. */
2147 view->width = base->width;
2148 view->height = SCALE_SPLIT_VIEW(base->height);
2149 base->height -= view->height;
2151 /* Make room for the title bar. */
2155 /* Make room for the title bar. */
2160 foreach_displayed_view (view, i) {
2162 view->win = newwin(view->height, 0, offset, 0);
2164 die("Failed to create %s view", view->name);
2166 scrollok(view->win, TRUE);
2168 view->title = newwin(1, 0, offset + view->height, 0);
2170 die("Failed to create title window");
2173 wresize(view->win, view->height, view->width);
2174 mvwin(view->win, offset, 0);
2175 mvwin(view->title, offset + view->height, 0);
2178 offset += view->height + 1;
2183 redraw_display(bool clear)
2188 foreach_displayed_view (view, i) {
2192 update_view_title(view);
2197 update_display_cursor(struct view *view)
2199 /* Move the cursor to the right-most column of the cursor line.
2201 * XXX: This could turn out to be a bit expensive, but it ensures that
2202 * the cursor does not jump around. */
2204 wmove(view->win, view->lineno - view->offset, view->width - 1);
2205 wrefresh(view->win);
2210 toggle_view_option(bool *option, const char *help)
2213 redraw_display(FALSE);
2214 report("%sabling %s", *option ? "En" : "Dis", help);
2221 /* Scrolling backend */
2223 do_scroll_view(struct view *view, int lines)
2225 bool redraw_current_line = FALSE;
2227 /* The rendering expects the new offset. */
2228 view->offset += lines;
2230 assert(0 <= view->offset && view->offset < view->lines);
2233 /* Move current line into the view. */
2234 if (view->lineno < view->offset) {
2235 view->lineno = view->offset;
2236 redraw_current_line = TRUE;
2237 } else if (view->lineno >= view->offset + view->height) {
2238 view->lineno = view->offset + view->height - 1;
2239 redraw_current_line = TRUE;
2242 assert(view->offset <= view->lineno && view->lineno < view->lines);
2244 /* Redraw the whole screen if scrolling is pointless. */
2245 if (view->height < ABS(lines)) {
2249 int line = lines > 0 ? view->height - lines : 0;
2250 int end = line + ABS(lines);
2252 wscrl(view->win, lines);
2254 for (; line < end; line++) {
2255 if (!draw_view_line(view, line))
2259 if (redraw_current_line)
2260 draw_view_line(view, view->lineno - view->offset);
2263 redrawwin(view->win);
2264 wrefresh(view->win);
2268 /* Scroll frontend */
2270 scroll_view(struct view *view, enum request request)
2274 assert(view_is_displayed(view));
2277 case REQ_SCROLL_PAGE_DOWN:
2278 lines = view->height;
2279 case REQ_SCROLL_LINE_DOWN:
2280 if (view->offset + lines > view->lines)
2281 lines = view->lines - view->offset;
2283 if (lines == 0 || view->offset + view->height >= view->lines) {
2284 report("Cannot scroll beyond the last line");
2289 case REQ_SCROLL_PAGE_UP:
2290 lines = view->height;
2291 case REQ_SCROLL_LINE_UP:
2292 if (lines > view->offset)
2293 lines = view->offset;
2296 report("Cannot scroll beyond the first line");
2304 die("request %d not handled in switch", request);
2307 do_scroll_view(view, lines);
2312 move_view(struct view *view, enum request request)
2314 int scroll_steps = 0;
2318 case REQ_MOVE_FIRST_LINE:
2319 steps = -view->lineno;
2322 case REQ_MOVE_LAST_LINE:
2323 steps = view->lines - view->lineno - 1;
2326 case REQ_MOVE_PAGE_UP:
2327 steps = view->height > view->lineno
2328 ? -view->lineno : -view->height;
2331 case REQ_MOVE_PAGE_DOWN:
2332 steps = view->lineno + view->height >= view->lines
2333 ? view->lines - view->lineno - 1 : view->height;
2345 die("request %d not handled in switch", request);
2348 if (steps <= 0 && view->lineno == 0) {
2349 report("Cannot move beyond the first line");
2352 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2353 report("Cannot move beyond the last line");
2357 /* Move the current line */
2358 view->lineno += steps;
2359 assert(0 <= view->lineno && view->lineno < view->lines);
2361 /* Check whether the view needs to be scrolled */
2362 if (view->lineno < view->offset ||
2363 view->lineno >= view->offset + view->height) {
2364 scroll_steps = steps;
2365 if (steps < 0 && -steps > view->offset) {
2366 scroll_steps = -view->offset;
2368 } else if (steps > 0) {
2369 if (view->lineno == view->lines - 1 &&
2370 view->lines > view->height) {
2371 scroll_steps = view->lines - view->offset - 1;
2372 if (scroll_steps >= view->height)
2373 scroll_steps -= view->height - 1;
2378 if (!view_is_displayed(view)) {
2379 view->offset += scroll_steps;
2380 assert(0 <= view->offset && view->offset < view->lines);
2381 view->ops->select(view, &view->line[view->lineno]);
2385 /* Repaint the old "current" line if we be scrolling */
2386 if (ABS(steps) < view->height)
2387 draw_view_line(view, view->lineno - steps - view->offset);
2390 do_scroll_view(view, scroll_steps);
2394 /* Draw the current line */
2395 draw_view_line(view, view->lineno - view->offset);
2397 redrawwin(view->win);
2398 wrefresh(view->win);
2407 static void search_view(struct view *view, enum request request);
2410 select_view_line(struct view *view, unsigned long lineno)
2412 assert(view_is_displayed(view));
2414 if (lineno - view->offset >= view->height) {
2415 view->offset = lineno;
2416 view->lineno = lineno;
2420 unsigned long old_lineno = view->lineno - view->offset;
2422 view->lineno = lineno;
2423 draw_view_line(view, old_lineno);
2425 draw_view_line(view, view->lineno - view->offset);
2426 redrawwin(view->win);
2427 wrefresh(view->win);
2432 find_next(struct view *view, enum request request)
2434 unsigned long lineno = view->lineno;
2439 report("No previous search");
2441 search_view(view, request);
2451 case REQ_SEARCH_BACK:
2460 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2461 lineno += direction;
2463 /* Note, lineno is unsigned long so will wrap around in which case it
2464 * will become bigger than view->lines. */
2465 for (; lineno < view->lines; lineno += direction) {
2466 if (view->ops->grep(view, &view->line[lineno])) {
2467 select_view_line(view, lineno);
2468 report("Line %ld matches '%s'", lineno + 1, view->grep);
2473 report("No match found for '%s'", view->grep);
2477 search_view(struct view *view, enum request request)
2482 regfree(view->regex);
2485 view->regex = calloc(1, sizeof(*view->regex));
2490 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2491 if (regex_err != 0) {
2492 char buf[SIZEOF_STR] = "unknown error";
2494 regerror(regex_err, view->regex, buf, sizeof(buf));
2495 report("Search failed: %s", buf);
2499 string_copy(view->grep, opt_search);
2501 find_next(view, request);
2505 * Incremental updating
2509 reset_view(struct view *view)
2513 for (i = 0; i < view->lines; i++)
2514 free(view->line[i].data);
2521 view->line_alloc = 0;
2523 view->update_secs = 0;
2527 free_argv(const char *argv[])
2531 for (argc = 0; argv[argc]; argc++)
2532 free((void *) argv[argc]);
2536 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2538 char buf[SIZEOF_STR];
2540 bool noreplace = flags == FORMAT_NONE;
2542 free_argv(dst_argv);
2544 for (argc = 0; src_argv[argc]; argc++) {
2545 const char *arg = src_argv[argc];
2549 char *next = strstr(arg, "%(");
2550 int len = next - arg;
2553 if (!next || noreplace) {
2554 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2559 } else if (!prefixcmp(next, "%(directory)")) {
2562 } else if (!prefixcmp(next, "%(file)")) {
2565 } else if (!prefixcmp(next, "%(ref)")) {
2566 value = *opt_ref ? opt_ref : "HEAD";
2568 } else if (!prefixcmp(next, "%(head)")) {
2571 } else if (!prefixcmp(next, "%(commit)")) {
2574 } else if (!prefixcmp(next, "%(blob)")) {
2578 report("Unknown replacement: `%s`", next);
2582 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2585 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2588 dst_argv[argc] = strdup(buf);
2589 if (!dst_argv[argc])
2593 dst_argv[argc] = NULL;
2595 return src_argv[argc] == NULL;
2599 end_update(struct view *view, bool force)
2603 while (!view->ops->read(view, NULL))
2606 set_nonblocking_input(FALSE);
2608 kill_io(view->pipe);
2609 done_io(view->pipe);
2614 setup_update(struct view *view, const char *vid)
2616 set_nonblocking_input(TRUE);
2618 string_copy_rev(view->vid, vid);
2619 view->pipe = &view->io;
2620 view->start_time = time(NULL);
2624 prepare_update(struct view *view, const char *argv[], const char *dir,
2625 enum format_flags flags)
2628 end_update(view, TRUE);
2629 return init_io_rd(&view->io, argv, dir, flags);
2633 prepare_update_file(struct view *view, const char *name)
2636 end_update(view, TRUE);
2637 return io_open(&view->io, name);
2641 begin_update(struct view *view, bool refresh)
2644 end_update(view, TRUE);
2647 if (!start_io(&view->io))
2651 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2654 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2657 /* Put the current ref_* value to the view title ref
2658 * member. This is needed by the blob view. Most other
2659 * views sets it automatically after loading because the
2660 * first line is a commit line. */
2661 string_copy_rev(view->ref, view->id);
2664 setup_update(view, view->id);
2669 #define ITEM_CHUNK_SIZE 256
2671 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2673 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2674 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2676 if (mem == NULL || num_chunks != num_chunks_new) {
2677 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2678 mem = realloc(mem, *size * item_size);
2684 static struct line *
2685 realloc_lines(struct view *view, size_t line_size)
2687 size_t alloc = view->line_alloc;
2688 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2689 sizeof(*view->line));
2695 view->line_alloc = alloc;
2700 update_view(struct view *view)
2702 char out_buffer[BUFSIZ * 2];
2704 /* Clear the view and redraw everything since the tree sorting
2705 * might have rearranged things. */
2706 bool redraw = view->lines == 0;
2707 bool can_read = TRUE;
2712 if (!io_can_read(view->pipe)) {
2713 if (view->lines == 0) {
2714 time_t secs = time(NULL) - view->start_time;
2716 if (secs > view->update_secs) {
2717 if (view->update_secs == 0)
2719 update_view_title(view);
2720 view->update_secs = secs;
2726 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2727 if (opt_iconv != ICONV_NONE) {
2728 ICONV_CONST char *inbuf = line;
2729 size_t inlen = strlen(line) + 1;
2731 char *outbuf = out_buffer;
2732 size_t outlen = sizeof(out_buffer);
2736 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2737 if (ret != (size_t) -1)
2741 if (!view->ops->read(view, line))
2746 unsigned long lines = view->lines;
2749 for (digits = 0; lines; digits++)
2752 /* Keep the displayed view in sync with line number scaling. */
2753 if (digits != view->digits) {
2754 view->digits = digits;
2755 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2760 if (io_error(view->pipe)) {
2761 report("Failed to read: %s", io_strerror(view->pipe));
2762 end_update(view, TRUE);
2764 } else if (io_eof(view->pipe)) {
2766 end_update(view, FALSE);
2769 if (!view_is_displayed(view))
2773 redraw_view_from(view, 0);
2775 redraw_view_dirty(view);
2777 /* Update the title _after_ the redraw so that if the redraw picks up a
2778 * commit reference in view->ref it'll be available here. */
2779 update_view_title(view);
2783 report("Allocation failure");
2784 end_update(view, TRUE);
2788 static struct line *
2789 add_line_data(struct view *view, void *data, enum line_type type)
2793 if (!realloc_lines(view, view->lines + 1))
2796 line = &view->line[view->lines++];
2797 memset(line, 0, sizeof(*line));
2805 static struct line *
2806 add_line_text(struct view *view, const char *text, enum line_type type)
2808 char *data = text ? strdup(text) : NULL;
2810 return data ? add_line_data(view, data, type) : NULL;
2813 static struct line *
2814 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2816 char buf[SIZEOF_STR];
2819 va_start(args, fmt);
2820 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2824 return buf[0] ? add_line_text(view, buf, type) : NULL;
2832 OPEN_DEFAULT = 0, /* Use default view switching. */
2833 OPEN_SPLIT = 1, /* Split current view. */
2834 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2835 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2836 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2837 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2838 OPEN_PREPARED = 32, /* Open already prepared command. */
2842 open_view(struct view *prev, enum request request, enum open_flags flags)
2844 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2845 bool split = !!(flags & OPEN_SPLIT);
2846 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2847 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2848 struct view *view = VIEW(request);
2849 int nviews = displayed_views();
2850 struct view *base_view = display[0];
2852 if (view == prev && nviews == 1 && !reload) {
2853 report("Already in %s view", view->name);
2857 if (view->git_dir && !opt_git_dir[0]) {
2858 report("The %s view is disabled in pager view", view->name);
2866 } else if (!nomaximize) {
2867 /* Maximize the current view. */
2868 memset(display, 0, sizeof(display));
2870 display[current_view] = view;
2873 /* Resize the view when switching between split- and full-screen,
2874 * or when switching between two different full-screen views. */
2875 if (nviews != displayed_views() ||
2876 (nviews == 1 && base_view != display[0]))
2879 if (view->ops->open) {
2880 if (!view->ops->open(view)) {
2881 report("Failed to load %s view", view->name);
2885 } else if ((reload || strcmp(view->vid, view->id)) &&
2886 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2887 report("Failed to load %s view", view->name);
2891 if (split && prev->lineno - prev->offset >= prev->height) {
2892 /* Take the title line into account. */
2893 int lines = prev->lineno - prev->offset - prev->height + 1;
2895 /* Scroll the view that was split if the current line is
2896 * outside the new limited view. */
2897 do_scroll_view(prev, lines);
2900 if (prev && view != prev) {
2901 if (split && !backgrounded) {
2902 /* "Blur" the previous view. */
2903 update_view_title(prev);
2906 view->parent = prev;
2909 if (view->pipe && view->lines == 0) {
2910 /* Clear the old view and let the incremental updating refill
2914 } else if (view_is_displayed(view)) {
2919 /* If the view is backgrounded the above calls to report()
2920 * won't redraw the view title. */
2922 update_view_title(view);
2926 open_external_viewer(const char *argv[], const char *dir)
2928 def_prog_mode(); /* save current tty modes */
2929 endwin(); /* restore original tty modes */
2930 run_io_fg(argv, dir);
2931 fprintf(stderr, "Press Enter to continue");
2934 redraw_display(TRUE);
2938 open_mergetool(const char *file)
2940 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
2942 open_external_viewer(mergetool_argv, opt_cdup);
2946 open_editor(bool from_root, const char *file)
2948 const char *editor_argv[] = { "vi", file, NULL };
2951 editor = getenv("GIT_EDITOR");
2952 if (!editor && *opt_editor)
2953 editor = opt_editor;
2955 editor = getenv("VISUAL");
2957 editor = getenv("EDITOR");
2961 editor_argv[0] = editor;
2962 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
2966 open_run_request(enum request request)
2968 struct run_request *req = get_run_request(request);
2969 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
2972 report("Unknown run request");
2976 if (format_argv(argv, req->argv, FORMAT_ALL))
2977 open_external_viewer(argv, NULL);
2982 * User request switch noodle
2986 view_driver(struct view *view, enum request request)
2990 if (request == REQ_NONE) {
2995 if (request > REQ_NONE) {
2996 open_run_request(request);
2997 /* FIXME: When all views can refresh always do this. */
2998 if (view == VIEW(REQ_VIEW_STATUS) ||
2999 view == VIEW(REQ_VIEW_MAIN) ||
3000 view == VIEW(REQ_VIEW_LOG) ||
3001 view == VIEW(REQ_VIEW_STAGE))
3002 request = REQ_REFRESH;
3007 if (view && view->lines) {
3008 request = view->ops->request(view, request, &view->line[view->lineno]);
3009 if (request == REQ_NONE)
3016 case REQ_MOVE_PAGE_UP:
3017 case REQ_MOVE_PAGE_DOWN:
3018 case REQ_MOVE_FIRST_LINE:
3019 case REQ_MOVE_LAST_LINE:
3020 move_view(view, request);
3023 case REQ_SCROLL_LINE_DOWN:
3024 case REQ_SCROLL_LINE_UP:
3025 case REQ_SCROLL_PAGE_DOWN:
3026 case REQ_SCROLL_PAGE_UP:
3027 scroll_view(view, request);
3030 case REQ_VIEW_BLAME:
3032 report("No file chosen, press %s to open tree view",
3033 get_key(REQ_VIEW_TREE));
3036 open_view(view, request, OPEN_DEFAULT);
3041 report("No file chosen, press %s to open tree view",
3042 get_key(REQ_VIEW_TREE));
3045 open_view(view, request, OPEN_DEFAULT);
3048 case REQ_VIEW_PAGER:
3049 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3050 report("No pager content, press %s to run command from prompt",
3051 get_key(REQ_PROMPT));
3054 open_view(view, request, OPEN_DEFAULT);
3057 case REQ_VIEW_STAGE:
3058 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3059 report("No stage content, press %s to open the status view and choose file",
3060 get_key(REQ_VIEW_STATUS));
3063 open_view(view, request, OPEN_DEFAULT);
3066 case REQ_VIEW_STATUS:
3067 if (opt_is_inside_work_tree == FALSE) {
3068 report("The status view requires a working tree");
3071 open_view(view, request, OPEN_DEFAULT);
3079 open_view(view, request, OPEN_DEFAULT);
3084 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3086 if ((view == VIEW(REQ_VIEW_DIFF) &&
3087 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3088 (view == VIEW(REQ_VIEW_DIFF) &&
3089 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3090 (view == VIEW(REQ_VIEW_STAGE) &&
3091 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3092 (view == VIEW(REQ_VIEW_BLOB) &&
3093 view->parent == VIEW(REQ_VIEW_TREE))) {
3096 view = view->parent;
3097 line = view->lineno;
3098 move_view(view, request);
3099 if (view_is_displayed(view))
3100 update_view_title(view);
3101 if (line != view->lineno)
3102 view->ops->request(view, REQ_ENTER,
3103 &view->line[view->lineno]);
3106 move_view(view, request);
3112 int nviews = displayed_views();
3113 int next_view = (current_view + 1) % nviews;
3115 if (next_view == current_view) {
3116 report("Only one view is displayed");
3120 current_view = next_view;
3121 /* Blur out the title of the previous view. */
3122 update_view_title(view);
3127 report("Refreshing is not yet supported for the %s view", view->name);
3131 if (displayed_views() == 2)
3132 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3135 case REQ_TOGGLE_LINENO:
3136 toggle_view_option(&opt_line_number, "line numbers");
3139 case REQ_TOGGLE_DATE:
3140 toggle_view_option(&opt_date, "date display");
3143 case REQ_TOGGLE_AUTHOR:
3144 toggle_view_option(&opt_author, "author display");
3147 case REQ_TOGGLE_REV_GRAPH:
3148 toggle_view_option(&opt_rev_graph, "revision graph display");
3151 case REQ_TOGGLE_REFS:
3152 toggle_view_option(&opt_show_refs, "reference display");
3156 case REQ_SEARCH_BACK:
3157 search_view(view, request);
3162 find_next(view, request);
3165 case REQ_STOP_LOADING:
3166 for (i = 0; i < ARRAY_SIZE(views); i++) {
3169 report("Stopped loading the %s view", view->name),
3170 end_update(view, TRUE);
3174 case REQ_SHOW_VERSION:
3175 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3178 case REQ_SCREEN_REDRAW:
3179 redraw_display(TRUE);
3183 report("Nothing to edit");
3187 report("Nothing to enter");
3190 case REQ_VIEW_CLOSE:
3191 /* XXX: Mark closed views by letting view->parent point to the
3192 * view itself. Parents to closed view should never be
3195 view->parent->parent != view->parent) {
3196 memset(display, 0, sizeof(display));
3198 display[current_view] = view->parent;
3199 view->parent = view;
3201 redraw_display(FALSE);
3210 report("Unknown key, press 'h' for help");
3223 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3225 char *text = line->data;
3227 if (opt_line_number && draw_lineno(view, lineno))
3230 draw_text(view, line->type, text, TRUE);
3235 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3237 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3238 char refbuf[SIZEOF_STR];
3241 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3242 ref = chomp_string(refbuf);
3247 /* This is the only fatal call, since it can "corrupt" the buffer. */
3248 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3255 add_pager_refs(struct view *view, struct line *line)
3257 char buf[SIZEOF_STR];
3258 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3260 size_t bufpos = 0, refpos = 0;
3261 const char *sep = "Refs: ";
3262 bool is_tag = FALSE;
3264 assert(line->type == LINE_COMMIT);
3266 refs = get_refs(commit_id);
3268 if (view == VIEW(REQ_VIEW_DIFF))
3269 goto try_add_describe_ref;
3274 struct ref *ref = refs[refpos];
3275 const char *fmt = ref->tag ? "%s[%s]" :
3276 ref->remote ? "%s<%s>" : "%s%s";
3278 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3283 } while (refs[refpos++]->next);
3285 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3286 try_add_describe_ref:
3287 /* Add <tag>-g<commit_id> "fake" reference. */
3288 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3295 add_line_text(view, buf, LINE_PP_REFS);
3299 pager_read(struct view *view, char *data)
3306 line = add_line_text(view, data, get_line_type(data));
3310 if (line->type == LINE_COMMIT &&
3311 (view == VIEW(REQ_VIEW_DIFF) ||
3312 view == VIEW(REQ_VIEW_LOG)))
3313 add_pager_refs(view, line);
3319 pager_request(struct view *view, enum request request, struct line *line)
3323 if (request != REQ_ENTER)
3326 if (line->type == LINE_COMMIT &&
3327 (view == VIEW(REQ_VIEW_LOG) ||
3328 view == VIEW(REQ_VIEW_PAGER))) {
3329 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3333 /* Always scroll the view even if it was split. That way
3334 * you can use Enter to scroll through the log view and
3335 * split open each commit diff. */
3336 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3338 /* FIXME: A minor workaround. Scrolling the view will call report("")
3339 * but if we are scrolling a non-current view this won't properly
3340 * update the view title. */
3342 update_view_title(view);
3348 pager_grep(struct view *view, struct line *line)
3351 char *text = line->data;
3356 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3363 pager_select(struct view *view, struct line *line)
3365 if (line->type == LINE_COMMIT) {
3366 char *text = (char *)line->data + STRING_SIZE("commit ");
3368 if (view != VIEW(REQ_VIEW_PAGER))
3369 string_copy_rev(view->ref, text);
3370 string_copy_rev(ref_commit, text);
3374 static struct view_ops pager_ops = {
3385 static const char *log_argv[SIZEOF_ARG] = {
3386 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3390 log_request(struct view *view, enum request request, struct line *line)
3395 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3398 return pager_request(view, request, line);
3402 static struct view_ops log_ops = {
3413 static const char *diff_argv[SIZEOF_ARG] = {
3414 "git", "show", "--pretty=fuller", "--no-color", "--root",
3415 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3418 static struct view_ops diff_ops = {
3434 help_open(struct view *view)
3436 int lines = ARRAY_SIZE(req_info) + 2;
3439 if (view->lines > 0)
3442 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3443 if (!req_info[i].request)
3446 lines += run_requests + 1;
3448 view->line = calloc(lines, sizeof(*view->line));
3452 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3454 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3457 if (req_info[i].request == REQ_NONE)
3460 if (!req_info[i].request) {
3461 add_line_text(view, "", LINE_DEFAULT);
3462 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3466 key = get_key(req_info[i].request);
3468 key = "(no key defined)";
3470 add_line_format(view, LINE_DEFAULT, " %-25s %s",
3471 key, req_info[i].help);
3475 add_line_text(view, "", LINE_DEFAULT);
3476 add_line_text(view, "External commands:", LINE_DEFAULT);
3479 for (i = 0; i < run_requests; i++) {
3480 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3482 char cmd[SIZEOF_STR];
3489 key = get_key_name(req->key);
3491 key = "(no key defined)";
3493 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3494 if (!string_format_from(cmd, &bufpos, "%s%s",
3495 argc ? " " : "", req->argv[argc]))
3498 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3499 keymap_table[req->keymap].name, key, cmd);
3505 static struct view_ops help_ops = {
3521 struct tree_stack_entry {
3522 struct tree_stack_entry *prev; /* Entry below this in the stack */
3523 unsigned long lineno; /* Line number to restore */
3524 char *name; /* Position of name in opt_path */
3527 /* The top of the path stack. */
3528 static struct tree_stack_entry *tree_stack = NULL;
3529 unsigned long tree_lineno = 0;
3532 pop_tree_stack_entry(void)
3534 struct tree_stack_entry *entry = tree_stack;
3536 tree_lineno = entry->lineno;
3538 tree_stack = entry->prev;
3543 push_tree_stack_entry(const char *name, unsigned long lineno)
3545 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3546 size_t pathlen = strlen(opt_path);
3551 entry->prev = tree_stack;
3552 entry->name = opt_path + pathlen;
3555 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3556 pop_tree_stack_entry();
3560 /* Move the current line to the first tree entry. */
3562 entry->lineno = lineno;
3565 /* Parse output from git-ls-tree(1):
3567 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3568 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3569 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3570 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3573 #define SIZEOF_TREE_ATTR \
3574 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3576 #define TREE_UP_FORMAT "040000 tree %s\t.."
3579 tree_path(struct line *line)
3581 const char *path = line->data;
3583 return path + SIZEOF_TREE_ATTR;
3587 tree_compare_entry(struct line *line1, struct line *line2)
3589 if (line1->type != line2->type)
3590 return line1->type == LINE_TREE_DIR ? -1 : 1;
3591 return strcmp(tree_path(line1), tree_path(line2));
3595 tree_read(struct view *view, char *text)
3597 size_t textlen = text ? strlen(text) : 0;
3598 struct line *entry, *line;
3599 enum line_type type;
3603 if (textlen <= SIZEOF_TREE_ATTR)
3606 type = text[STRING_SIZE("100644 ")] == 't'
3607 ? LINE_TREE_DIR : LINE_TREE_FILE;
3609 if (view->lines == 0 &&
3610 !add_line_format(view, LINE_DEFAULT, "Directory path /%s", opt_path))
3613 /* Strip the path part ... */
3615 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3616 size_t striplen = strlen(opt_path);
3617 char *path = text + SIZEOF_TREE_ATTR;
3619 if (pathlen > striplen)
3620 memmove(path, path + striplen,
3621 pathlen - striplen + 1);
3623 /* Insert "link" to parent directory. */
3624 if (view->lines == 1 &&
3625 !add_line_format(view, LINE_TREE_DIR, TREE_UP_FORMAT, view->ref))
3629 entry = add_line_text(view, text, type);
3634 /* Skip "Directory ..." and ".." line. */
3635 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3636 if (tree_compare_entry(line, entry) <= 0)
3639 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3643 for (; line <= entry; line++)
3644 line->dirty = line->cleareol = 1;
3648 if (tree_lineno > view->lineno) {
3649 view->lineno = tree_lineno;
3659 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
3660 int fd = mkstemp(file);
3663 report("Failed to create temporary file");
3664 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
3665 report("Failed to save blob data to file");
3667 open_editor(FALSE, file);
3673 tree_request(struct view *view, enum request request, struct line *line)
3675 enum open_flags flags;
3678 case REQ_VIEW_BLAME:
3679 if (line->type != LINE_TREE_FILE) {
3680 report("Blame only supported for files");
3684 string_copy(opt_ref, view->vid);
3688 if (line->type != LINE_TREE_FILE) {
3689 report("Edit only supported for files");
3690 } else if (!is_head_commit(view->vid)) {
3693 open_editor(TRUE, opt_file);
3697 case REQ_TREE_PARENT:
3699 /* quit view if at top of tree */
3700 return REQ_VIEW_CLOSE;
3703 line = &view->line[1];
3713 /* Cleanup the stack if the tree view is at a different tree. */
3714 while (!*opt_path && tree_stack)
3715 pop_tree_stack_entry();
3717 switch (line->type) {
3719 /* Depending on whether it is a subdir or parent (updir?) link
3720 * mangle the path buffer. */
3721 if (line == &view->line[1] && *opt_path) {
3722 pop_tree_stack_entry();
3725 const char *basename = tree_path(line);
3727 push_tree_stack_entry(basename, view->lineno);
3730 /* Trees and subtrees share the same ID, so they are not not
3731 * unique like blobs. */
3732 flags = OPEN_RELOAD;
3733 request = REQ_VIEW_TREE;
3736 case LINE_TREE_FILE:
3737 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3738 request = REQ_VIEW_BLOB;
3745 open_view(view, request, flags);
3746 if (request == REQ_VIEW_TREE) {
3747 view->lineno = tree_lineno;
3754 tree_select(struct view *view, struct line *line)
3756 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3758 if (line->type == LINE_TREE_FILE) {
3759 string_copy_rev(ref_blob, text);
3760 string_format(opt_file, "%s%s", opt_path, tree_path(line));
3762 } else if (line->type != LINE_TREE_DIR) {
3766 string_copy_rev(view->ref, text);
3769 static const char *tree_argv[SIZEOF_ARG] = {
3770 "git", "ls-tree", "%(commit)", "%(directory)", NULL
3773 static struct view_ops tree_ops = {
3785 blob_read(struct view *view, char *line)
3789 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3793 blob_request(struct view *view, enum request request, struct line *line)
3800 return pager_request(view, request, line);
3804 static const char *blob_argv[SIZEOF_ARG] = {
3805 "git", "cat-file", "blob", "%(blob)", NULL
3808 static struct view_ops blob_ops = {
3822 * Loading the blame view is a two phase job:
3824 * 1. File content is read either using opt_file from the
3825 * filesystem or using git-cat-file.
3826 * 2. Then blame information is incrementally added by
3827 * reading output from git-blame.
3830 static const char *blame_head_argv[] = {
3831 "git", "blame", "--incremental", "--", "%(file)", NULL
3834 static const char *blame_ref_argv[] = {
3835 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
3838 static const char *blame_cat_file_argv[] = {
3839 "git", "cat-file", "blob", "%(ref):%(file)", NULL
3842 struct blame_commit {
3843 char id[SIZEOF_REV]; /* SHA1 ID. */
3844 char title[128]; /* First line of the commit message. */
3845 char author[75]; /* Author of the commit. */
3846 struct tm time; /* Date from the author ident. */
3847 char filename[128]; /* Name of file. */
3851 struct blame_commit *commit;
3856 blame_open(struct view *view)
3858 if (*opt_ref || !io_open(&view->io, opt_file)) {
3859 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
3863 setup_update(view, opt_file);
3864 string_format(view->ref, "%s ...", opt_file);
3869 static struct blame_commit *
3870 get_blame_commit(struct view *view, const char *id)
3874 for (i = 0; i < view->lines; i++) {
3875 struct blame *blame = view->line[i].data;
3880 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3881 return blame->commit;
3885 struct blame_commit *commit = calloc(1, sizeof(*commit));
3888 string_ncopy(commit->id, id, SIZEOF_REV);
3894 parse_number(const char **posref, size_t *number, size_t min, size_t max)
3896 const char *pos = *posref;
3899 pos = strchr(pos + 1, ' ');
3900 if (!pos || !isdigit(pos[1]))
3902 *number = atoi(pos + 1);
3903 if (*number < min || *number > max)
3910 static struct blame_commit *
3911 parse_blame_commit(struct view *view, const char *text, int *blamed)
3913 struct blame_commit *commit;
3914 struct blame *blame;
3915 const char *pos = text + SIZEOF_REV - 1;
3919 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3922 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3923 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3926 commit = get_blame_commit(view, text);
3932 struct line *line = &view->line[lineno + group - 1];
3935 blame->commit = commit;
3943 blame_read_file(struct view *view, const char *line, bool *read_file)
3946 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
3949 if (view->lines == 0 && !view->parent)
3950 die("No blame exist for %s", view->vid);
3952 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
3953 report("Failed to load blame data");
3957 done_io(view->pipe);
3963 size_t linelen = strlen(line);
3964 struct blame *blame = malloc(sizeof(*blame) + linelen);
3966 blame->commit = NULL;
3967 strncpy(blame->text, line, linelen);
3968 blame->text[linelen] = 0;
3969 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3974 match_blame_header(const char *name, char **line)
3976 size_t namelen = strlen(name);
3977 bool matched = !strncmp(name, *line, namelen);
3986 blame_read(struct view *view, char *line)
3988 static struct blame_commit *commit = NULL;
3989 static int blamed = 0;
3990 static time_t author_time;
3991 static bool read_file = TRUE;
3994 return blame_read_file(view, line, &read_file);
4001 string_format(view->ref, "%s", view->vid);
4002 if (view_is_displayed(view)) {
4003 update_view_title(view);
4004 redraw_view_from(view, 0);
4010 commit = parse_blame_commit(view, line, &blamed);
4011 string_format(view->ref, "%s %2d%%", view->vid,
4012 blamed * 100 / view->lines);
4014 } else if (match_blame_header("author ", &line)) {
4015 string_ncopy(commit->author, line, strlen(line));
4017 } else if (match_blame_header("author-time ", &line)) {
4018 author_time = (time_t) atol(line);
4020 } else if (match_blame_header("author-tz ", &line)) {
4023 tz = ('0' - line[1]) * 60 * 60 * 10;
4024 tz += ('0' - line[2]) * 60 * 60;
4025 tz += ('0' - line[3]) * 60;
4026 tz += ('0' - line[4]) * 60;
4032 gmtime_r(&author_time, &commit->time);
4034 } else if (match_blame_header("summary ", &line)) {
4035 string_ncopy(commit->title, line, strlen(line));
4037 } else if (match_blame_header("filename ", &line)) {
4038 string_ncopy(commit->filename, line, strlen(line));
4046 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4048 struct blame *blame = line->data;
4049 struct tm *time = NULL;
4050 const char *id = NULL, *author = NULL;
4052 if (blame->commit && *blame->commit->filename) {
4053 id = blame->commit->id;
4054 author = blame->commit->author;
4055 time = &blame->commit->time;
4058 if (opt_date && draw_date(view, time))
4062 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
4065 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4068 if (draw_lineno(view, lineno))
4071 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4076 check_blame_commit(struct blame *blame)
4079 report("Commit data not loaded yet");
4080 else if (!strcmp(blame->commit->id, NULL_ID))
4081 report("No commit exist for the selected line");
4088 blame_request(struct view *view, enum request request, struct line *line)
4090 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4091 struct blame *blame = line->data;
4094 case REQ_VIEW_BLAME:
4095 if (check_blame_commit(blame)) {
4096 string_copy(opt_ref, blame->commit->id);
4097 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4102 if (!blame->commit) {
4103 report("No commit loaded yet");
4107 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4108 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4111 if (!strcmp(blame->commit->id, NULL_ID)) {
4112 struct view *diff = VIEW(REQ_VIEW_DIFF);
4113 const char *diff_index_argv[] = {
4114 "git", "diff-index", "--root", "--cached",
4115 "--patch-with-stat", "-C", "-M",
4116 "HEAD", "--", view->vid, NULL
4119 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4120 report("Failed to allocate diff command");
4123 flags |= OPEN_PREPARED;
4126 open_view(view, REQ_VIEW_DIFF, flags);
4137 blame_grep(struct view *view, struct line *line)
4139 struct blame *blame = line->data;
4140 struct blame_commit *commit = blame->commit;
4143 #define MATCH(text, on) \
4144 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4147 char buf[DATE_COLS + 1];
4149 if (MATCH(commit->title, 1) ||
4150 MATCH(commit->author, opt_author) ||
4151 MATCH(commit->id, opt_date))
4154 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4159 return MATCH(blame->text, 1);
4165 blame_select(struct view *view, struct line *line)
4167 struct blame *blame = line->data;
4168 struct blame_commit *commit = blame->commit;
4173 if (!strcmp(commit->id, NULL_ID))
4174 string_ncopy(ref_commit, "HEAD", 4);
4176 string_copy_rev(ref_commit, commit->id);
4179 static struct view_ops blame_ops = {
4198 char rev[SIZEOF_REV];
4199 char name[SIZEOF_STR];
4203 char rev[SIZEOF_REV];
4204 char name[SIZEOF_STR];
4208 static char status_onbranch[SIZEOF_STR];
4209 static struct status stage_status;
4210 static enum line_type stage_line_type;
4211 static size_t stage_chunks;
4212 static int *stage_chunk;
4214 /* This should work even for the "On branch" line. */
4216 status_has_none(struct view *view, struct line *line)
4218 return line < view->line + view->lines && !line[1].data;
4221 /* Get fields from the diff line:
4222 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4225 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4227 const char *old_mode = buf + 1;
4228 const char *new_mode = buf + 8;
4229 const char *old_rev = buf + 15;
4230 const char *new_rev = buf + 56;
4231 const char *status = buf + 97;
4234 old_mode[-1] != ':' ||
4235 new_mode[-1] != ' ' ||
4236 old_rev[-1] != ' ' ||
4237 new_rev[-1] != ' ' ||
4241 file->status = *status;
4243 string_copy_rev(file->old.rev, old_rev);
4244 string_copy_rev(file->new.rev, new_rev);
4246 file->old.mode = strtoul(old_mode, NULL, 8);
4247 file->new.mode = strtoul(new_mode, NULL, 8);
4249 file->old.name[0] = file->new.name[0] = 0;
4255 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4257 struct status *file = NULL;
4258 struct status *unmerged = NULL;
4262 if (!run_io(&io, argv, NULL, IO_RD))
4265 add_line_data(view, NULL, type);
4267 while ((buf = io_get(&io, 0, TRUE))) {
4269 file = calloc(1, sizeof(*file));
4270 if (!file || !add_line_data(view, file, type))
4274 /* Parse diff info part. */
4276 file->status = status;
4278 string_copy(file->old.rev, NULL_ID);
4280 } else if (!file->status) {
4281 if (!status_get_diff(file, buf, strlen(buf)))
4284 buf = io_get(&io, 0, TRUE);
4288 /* Collapse all 'M'odified entries that follow a
4289 * associated 'U'nmerged entry. */
4290 if (file->status == 'U') {
4293 } else if (unmerged) {
4294 int collapse = !strcmp(buf, unmerged->new.name);
4305 /* Grab the old name for rename/copy. */
4306 if (!*file->old.name &&
4307 (file->status == 'R' || file->status == 'C')) {
4308 string_ncopy(file->old.name, buf, strlen(buf));
4310 buf = io_get(&io, 0, TRUE);
4315 /* git-ls-files just delivers a NUL separated list of
4316 * file names similar to the second half of the
4317 * git-diff-* output. */
4318 string_ncopy(file->new.name, buf, strlen(buf));
4319 if (!*file->old.name)
4320 string_copy(file->old.name, file->new.name);
4324 if (io_error(&io)) {
4330 if (!view->line[view->lines - 1].data)
4331 add_line_data(view, NULL, LINE_STAT_NONE);
4337 /* Don't show unmerged entries in the staged section. */
4338 static const char *status_diff_index_argv[] = {
4339 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4340 "--cached", "-M", "HEAD", NULL
4343 static const char *status_diff_files_argv[] = {
4344 "git", "diff-files", "-z", NULL
4347 static const char *status_list_other_argv[] = {
4348 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4351 static const char *status_list_no_head_argv[] = {
4352 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4355 static const char *update_index_argv[] = {
4356 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4359 /* First parse staged info using git-diff-index(1), then parse unstaged
4360 * info using git-diff-files(1), and finally untracked files using
4361 * git-ls-files(1). */
4363 status_open(struct view *view)
4365 unsigned long prev_lineno = view->lineno;
4369 add_line_data(view, NULL, LINE_STAT_HEAD);
4370 if (is_initial_commit())
4371 string_copy(status_onbranch, "Initial commit");
4372 else if (!*opt_head)
4373 string_copy(status_onbranch, "Not currently on any branch");
4374 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4377 run_io_bg(update_index_argv);
4379 if (is_initial_commit()) {
4380 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4382 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4386 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4387 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4390 /* If all went well restore the previous line number to stay in
4391 * the context or select a line with something that can be
4393 if (prev_lineno >= view->lines)
4394 prev_lineno = view->lines - 1;
4395 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4397 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4400 /* If the above fails, always skip the "On branch" line. */
4401 if (prev_lineno < view->lines)
4402 view->lineno = prev_lineno;
4406 if (view->lineno < view->offset)
4407 view->offset = view->lineno;
4408 else if (view->offset + view->height <= view->lineno)
4409 view->offset = view->lineno - view->height + 1;
4415 status_draw(struct view *view, struct line *line, unsigned int lineno)
4417 struct status *status = line->data;
4418 enum line_type type;
4422 switch (line->type) {
4423 case LINE_STAT_STAGED:
4424 type = LINE_STAT_SECTION;
4425 text = "Changes to be committed:";
4428 case LINE_STAT_UNSTAGED:
4429 type = LINE_STAT_SECTION;
4430 text = "Changed but not updated:";
4433 case LINE_STAT_UNTRACKED:
4434 type = LINE_STAT_SECTION;
4435 text = "Untracked files:";
4438 case LINE_STAT_NONE:
4439 type = LINE_DEFAULT;
4440 text = " (no files)";
4443 case LINE_STAT_HEAD:
4444 type = LINE_STAT_HEAD;
4445 text = status_onbranch;
4452 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4454 buf[0] = status->status;
4455 if (draw_text(view, line->type, buf, TRUE))
4457 type = LINE_DEFAULT;
4458 text = status->new.name;
4461 draw_text(view, type, text, TRUE);
4466 status_enter(struct view *view, struct line *line)
4468 struct status *status = line->data;
4469 const char *oldpath = status ? status->old.name : NULL;
4470 /* Diffs for unmerged entries are empty when passing the new
4471 * path, so leave it empty. */
4472 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4474 enum open_flags split;
4475 struct view *stage = VIEW(REQ_VIEW_STAGE);
4477 if (line->type == LINE_STAT_NONE ||
4478 (!status && line[1].type == LINE_STAT_NONE)) {
4479 report("No file to diff");
4483 switch (line->type) {
4484 case LINE_STAT_STAGED:
4485 if (is_initial_commit()) {
4486 const char *no_head_diff_argv[] = {
4487 "git", "diff", "--no-color", "--patch-with-stat",
4488 "--", "/dev/null", newpath, NULL
4491 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4494 const char *index_show_argv[] = {
4495 "git", "diff-index", "--root", "--patch-with-stat",
4496 "-C", "-M", "--cached", "HEAD", "--",
4497 oldpath, newpath, NULL
4500 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4505 info = "Staged changes to %s";
4507 info = "Staged changes";
4510 case LINE_STAT_UNSTAGED:
4512 const char *files_show_argv[] = {
4513 "git", "diff-files", "--root", "--patch-with-stat",
4514 "-C", "-M", "--", oldpath, newpath, NULL
4517 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4520 info = "Unstaged changes to %s";
4522 info = "Unstaged changes";
4525 case LINE_STAT_UNTRACKED:
4527 report("No file to show");
4531 if (!suffixcmp(status->new.name, -1, "/")) {
4532 report("Cannot display a directory");
4536 if (!prepare_update_file(stage, newpath))
4538 info = "Untracked file %s";
4541 case LINE_STAT_HEAD:
4545 die("line type %d not handled in switch", line->type);
4548 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4549 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH | split);
4550 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4552 stage_status = *status;
4554 memset(&stage_status, 0, sizeof(stage_status));
4557 stage_line_type = line->type;
4559 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4566 status_exists(struct status *status, enum line_type type)
4568 struct view *view = VIEW(REQ_VIEW_STATUS);
4571 for (line = view->line; line < view->line + view->lines; line++) {
4572 struct status *pos = line->data;
4574 if (line->type != type)
4576 if (!pos && (!status || !status->status))
4578 if (pos && !strcmp(status->new.name, pos->new.name))
4587 status_update_prepare(struct io *io, enum line_type type)
4589 const char *staged_argv[] = {
4590 "git", "update-index", "-z", "--index-info", NULL
4592 const char *others_argv[] = {
4593 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4597 case LINE_STAT_STAGED:
4598 return run_io(io, staged_argv, opt_cdup, IO_WR);
4600 case LINE_STAT_UNSTAGED:
4601 return run_io(io, others_argv, opt_cdup, IO_WR);
4603 case LINE_STAT_UNTRACKED:
4604 return run_io(io, others_argv, NULL, IO_WR);
4607 die("line type %d not handled in switch", type);
4613 status_update_write(struct io *io, struct status *status, enum line_type type)
4615 char buf[SIZEOF_STR];
4619 case LINE_STAT_STAGED:
4620 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4623 status->old.name, 0))
4627 case LINE_STAT_UNSTAGED:
4628 case LINE_STAT_UNTRACKED:
4629 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4634 die("line type %d not handled in switch", type);
4637 return io_write(io, buf, bufsize);
4641 status_update_file(struct status *status, enum line_type type)
4646 if (!status_update_prepare(&io, type))
4649 result = status_update_write(&io, status, type);
4655 status_update_files(struct view *view, struct line *line)
4659 struct line *pos = view->line + view->lines;
4663 if (!status_update_prepare(&io, line->type))
4666 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4669 for (file = 0, done = 0; result && file < files; line++, file++) {
4670 int almost_done = file * 100 / files;
4672 if (almost_done > done) {
4674 string_format(view->ref, "updating file %u of %u (%d%% done)",
4676 update_view_title(view);
4678 result = status_update_write(&io, line->data, line->type);
4686 status_update(struct view *view)
4688 struct line *line = &view->line[view->lineno];
4690 assert(view->lines);
4693 /* This should work even for the "On branch" line. */
4694 if (line < view->line + view->lines && !line[1].data) {
4695 report("Nothing to update");
4699 if (!status_update_files(view, line + 1)) {
4700 report("Failed to update file status");
4704 } else if (!status_update_file(line->data, line->type)) {
4705 report("Failed to update file status");
4713 status_revert(struct status *status, enum line_type type, bool has_none)
4715 if (!status || type != LINE_STAT_UNSTAGED) {
4716 if (type == LINE_STAT_STAGED) {
4717 report("Cannot revert changes to staged files");
4718 } else if (type == LINE_STAT_UNTRACKED) {
4719 report("Cannot revert changes to untracked files");
4720 } else if (has_none) {
4721 report("Nothing to revert");
4723 report("Cannot revert changes to multiple files");
4728 const char *checkout_argv[] = {
4729 "git", "checkout", "--", status->old.name, NULL
4732 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
4734 return run_io_fg(checkout_argv, opt_cdup);
4739 status_request(struct view *view, enum request request, struct line *line)
4741 struct status *status = line->data;
4744 case REQ_STATUS_UPDATE:
4745 if (!status_update(view))
4749 case REQ_STATUS_REVERT:
4750 if (!status_revert(status, line->type, status_has_none(view, line)))
4754 case REQ_STATUS_MERGE:
4755 if (!status || status->status != 'U') {
4756 report("Merging only possible for files with unmerged status ('U').");
4759 open_mergetool(status->new.name);
4765 if (status->status == 'D') {
4766 report("File has been deleted.");
4770 open_editor(status->status != '?', status->new.name);
4773 case REQ_VIEW_BLAME:
4775 string_copy(opt_file, status->new.name);
4781 /* After returning the status view has been split to
4782 * show the stage view. No further reloading is
4784 status_enter(view, line);
4788 /* Simply reload the view. */
4795 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4801 status_select(struct view *view, struct line *line)
4803 struct status *status = line->data;
4804 char file[SIZEOF_STR] = "all files";
4808 if (status && !string_format(file, "'%s'", status->new.name))
4811 if (!status && line[1].type == LINE_STAT_NONE)
4814 switch (line->type) {
4815 case LINE_STAT_STAGED:
4816 text = "Press %s to unstage %s for commit";
4819 case LINE_STAT_UNSTAGED:
4820 text = "Press %s to stage %s for commit";
4823 case LINE_STAT_UNTRACKED:
4824 text = "Press %s to stage %s for addition";
4827 case LINE_STAT_HEAD:
4828 case LINE_STAT_NONE:
4829 text = "Nothing to update";
4833 die("line type %d not handled in switch", line->type);
4836 if (status && status->status == 'U') {
4837 text = "Press %s to resolve conflict in %s";
4838 key = get_key(REQ_STATUS_MERGE);
4841 key = get_key(REQ_STATUS_UPDATE);
4844 string_format(view->ref, text, key, file);
4848 status_grep(struct view *view, struct line *line)
4850 struct status *status = line->data;
4851 enum { S_STATUS, S_NAME, S_END } state;
4858 for (state = S_STATUS; state < S_END; state++) {
4862 case S_NAME: text = status->new.name; break;
4864 buf[0] = status->status;
4872 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4879 static struct view_ops status_ops = {
4892 stage_diff_write(struct io *io, struct line *line, struct line *end)
4894 while (line < end) {
4895 if (!io_write(io, line->data, strlen(line->data)) ||
4896 !io_write(io, "\n", 1))
4899 if (line->type == LINE_DIFF_CHUNK ||
4900 line->type == LINE_DIFF_HEADER)
4907 static struct line *
4908 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4910 for (; view->line < line; line--)
4911 if (line->type == type)
4918 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
4920 const char *apply_argv[SIZEOF_ARG] = {
4921 "git", "apply", "--whitespace=nowarn", NULL
4923 struct line *diff_hdr;
4927 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4932 apply_argv[argc++] = "--cached";
4933 if (revert || stage_line_type == LINE_STAT_STAGED)
4934 apply_argv[argc++] = "-R";
4935 apply_argv[argc++] = "-";
4936 apply_argv[argc++] = NULL;
4937 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
4940 if (!stage_diff_write(&io, diff_hdr, chunk) ||
4941 !stage_diff_write(&io, chunk, view->line + view->lines))
4945 run_io_bg(update_index_argv);
4947 return chunk ? TRUE : FALSE;
4951 stage_update(struct view *view, struct line *line)
4953 struct line *chunk = NULL;
4955 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
4956 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4959 if (!stage_apply_chunk(view, chunk, FALSE)) {
4960 report("Failed to apply chunk");
4964 } else if (!stage_status.status) {
4965 view = VIEW(REQ_VIEW_STATUS);
4967 for (line = view->line; line < view->line + view->lines; line++)
4968 if (line->type == stage_line_type)
4971 if (!status_update_files(view, line + 1)) {
4972 report("Failed to update files");
4976 } else if (!status_update_file(&stage_status, stage_line_type)) {
4977 report("Failed to update file");
4985 stage_revert(struct view *view, struct line *line)
4987 struct line *chunk = NULL;
4989 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
4990 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4993 if (!prompt_yesno("Are you sure you want to revert changes?"))
4996 if (!stage_apply_chunk(view, chunk, TRUE)) {
4997 report("Failed to revert chunk");
5003 return status_revert(stage_status.status ? &stage_status : NULL,
5004 stage_line_type, FALSE);
5010 stage_next(struct view *view, struct line *line)
5014 if (!stage_chunks) {
5015 static size_t alloc = 0;
5018 for (line = view->line; line < view->line + view->lines; line++) {
5019 if (line->type != LINE_DIFF_CHUNK)
5022 tmp = realloc_items(stage_chunk, &alloc,
5023 stage_chunks, sizeof(*tmp));
5025 report("Allocation failure");
5030 stage_chunk[stage_chunks++] = line - view->line;
5034 for (i = 0; i < stage_chunks; i++) {
5035 if (stage_chunk[i] > view->lineno) {
5036 do_scroll_view(view, stage_chunk[i] - view->lineno);
5037 report("Chunk %d of %d", i + 1, stage_chunks);
5042 report("No next chunk found");
5046 stage_request(struct view *view, enum request request, struct line *line)
5049 case REQ_STATUS_UPDATE:
5050 if (!stage_update(view, line))
5054 case REQ_STATUS_REVERT:
5055 if (!stage_revert(view, line))
5059 case REQ_STAGE_NEXT:
5060 if (stage_line_type == LINE_STAT_UNTRACKED) {
5061 report("File is untracked; press %s to add",
5062 get_key(REQ_STATUS_UPDATE));
5065 stage_next(view, line);
5069 if (!stage_status.new.name[0])
5071 if (stage_status.status == 'D') {
5072 report("File has been deleted.");
5076 open_editor(stage_status.status != '?', stage_status.new.name);
5080 /* Reload everything ... */
5083 case REQ_VIEW_BLAME:
5084 if (stage_status.new.name[0]) {
5085 string_copy(opt_file, stage_status.new.name);
5091 return pager_request(view, request, line);
5097 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5099 /* Check whether the staged entry still exists, and close the
5100 * stage view if it doesn't. */
5101 if (!status_exists(&stage_status, stage_line_type))
5102 return REQ_VIEW_CLOSE;
5104 if (stage_line_type == LINE_STAT_UNTRACKED) {
5105 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5106 report("Cannot display a directory");
5110 if (!prepare_update_file(view, stage_status.new.name)) {
5111 report("Failed to open file: %s", strerror(errno));
5115 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5120 static struct view_ops stage_ops = {
5137 char id[SIZEOF_REV]; /* SHA1 ID. */
5138 char title[128]; /* First line of the commit message. */
5139 char author[75]; /* Author of the commit. */
5140 struct tm time; /* Date from the author ident. */
5141 struct ref **refs; /* Repository references. */
5142 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5143 size_t graph_size; /* The width of the graph array. */
5144 bool has_parents; /* Rewritten --parents seen. */
5147 /* Size of rev graph with no "padding" columns */
5148 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5151 struct rev_graph *prev, *next, *parents;
5152 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5154 struct commit *commit;
5156 unsigned int boundary:1;
5159 /* Parents of the commit being visualized. */
5160 static struct rev_graph graph_parents[4];
5162 /* The current stack of revisions on the graph. */
5163 static struct rev_graph graph_stacks[4] = {
5164 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5165 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5166 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5167 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5171 graph_parent_is_merge(struct rev_graph *graph)
5173 return graph->parents->size > 1;
5177 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5179 struct commit *commit = graph->commit;
5181 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5182 commit->graph[commit->graph_size++] = symbol;
5186 clear_rev_graph(struct rev_graph *graph)
5188 graph->boundary = 0;
5189 graph->size = graph->pos = 0;
5190 graph->commit = NULL;
5191 memset(graph->parents, 0, sizeof(*graph->parents));
5195 done_rev_graph(struct rev_graph *graph)
5197 if (graph_parent_is_merge(graph) &&
5198 graph->pos < graph->size - 1 &&
5199 graph->next->size == graph->size + graph->parents->size - 1) {
5200 size_t i = graph->pos + graph->parents->size - 1;
5202 graph->commit->graph_size = i * 2;
5203 while (i < graph->next->size - 1) {
5204 append_to_rev_graph(graph, ' ');
5205 append_to_rev_graph(graph, '\\');
5210 clear_rev_graph(graph);
5214 push_rev_graph(struct rev_graph *graph, const char *parent)
5218 /* "Collapse" duplicate parents lines.
5220 * FIXME: This needs to also update update the drawn graph but
5221 * for now it just serves as a method for pruning graph lines. */
5222 for (i = 0; i < graph->size; i++)
5223 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5226 if (graph->size < SIZEOF_REVITEMS) {
5227 string_copy_rev(graph->rev[graph->size++], parent);
5232 get_rev_graph_symbol(struct rev_graph *graph)
5236 if (graph->boundary)
5237 symbol = REVGRAPH_BOUND;
5238 else if (graph->parents->size == 0)
5239 symbol = REVGRAPH_INIT;
5240 else if (graph_parent_is_merge(graph))
5241 symbol = REVGRAPH_MERGE;
5242 else if (graph->pos >= graph->size)
5243 symbol = REVGRAPH_BRANCH;
5245 symbol = REVGRAPH_COMMIT;
5251 draw_rev_graph(struct rev_graph *graph)
5254 chtype separator, line;
5256 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5257 static struct rev_filler fillers[] = {
5263 chtype symbol = get_rev_graph_symbol(graph);
5264 struct rev_filler *filler;
5267 if (opt_line_graphics)
5268 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5270 filler = &fillers[DEFAULT];
5272 for (i = 0; i < graph->pos; i++) {
5273 append_to_rev_graph(graph, filler->line);
5274 if (graph_parent_is_merge(graph->prev) &&
5275 graph->prev->pos == i)
5276 filler = &fillers[RSHARP];
5278 append_to_rev_graph(graph, filler->separator);
5281 /* Place the symbol for this revision. */
5282 append_to_rev_graph(graph, symbol);
5284 if (graph->prev->size > graph->size)
5285 filler = &fillers[RDIAG];
5287 filler = &fillers[DEFAULT];
5291 for (; i < graph->size; i++) {
5292 append_to_rev_graph(graph, filler->separator);
5293 append_to_rev_graph(graph, filler->line);
5294 if (graph_parent_is_merge(graph->prev) &&
5295 i < graph->prev->pos + graph->parents->size)
5296 filler = &fillers[RSHARP];
5297 if (graph->prev->size > graph->size)
5298 filler = &fillers[LDIAG];
5301 if (graph->prev->size > graph->size) {
5302 append_to_rev_graph(graph, filler->separator);
5303 if (filler->line != ' ')
5304 append_to_rev_graph(graph, filler->line);
5308 /* Prepare the next rev graph */
5310 prepare_rev_graph(struct rev_graph *graph)
5314 /* First, traverse all lines of revisions up to the active one. */
5315 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5316 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5319 push_rev_graph(graph->next, graph->rev[graph->pos]);
5322 /* Interleave the new revision parent(s). */
5323 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5324 push_rev_graph(graph->next, graph->parents->rev[i]);
5326 /* Lastly, put any remaining revisions. */
5327 for (i = graph->pos + 1; i < graph->size; i++)
5328 push_rev_graph(graph->next, graph->rev[i]);
5332 update_rev_graph(struct view *view, struct rev_graph *graph)
5334 /* If this is the finalizing update ... */
5336 prepare_rev_graph(graph);
5338 /* Graph visualization needs a one rev look-ahead,
5339 * so the first update doesn't visualize anything. */
5340 if (!graph->prev->commit)
5343 if (view->lines > 2)
5344 view->line[view->lines - 3].dirty = 1;
5345 if (view->lines > 1)
5346 view->line[view->lines - 2].dirty = 1;
5347 draw_rev_graph(graph->prev);
5348 done_rev_graph(graph->prev->prev);
5356 static const char *main_argv[SIZEOF_ARG] = {
5357 "git", "log", "--no-color", "--pretty=raw", "--parents",
5358 "--topo-order", "%(head)", NULL
5362 main_draw(struct view *view, struct line *line, unsigned int lineno)
5364 struct commit *commit = line->data;
5366 if (!*commit->author)
5369 if (opt_date && draw_date(view, &commit->time))
5373 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5376 if (opt_rev_graph && commit->graph_size &&
5377 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5380 if (opt_show_refs && commit->refs) {
5384 enum line_type type;
5386 if (commit->refs[i]->head)
5387 type = LINE_MAIN_HEAD;
5388 else if (commit->refs[i]->ltag)
5389 type = LINE_MAIN_LOCAL_TAG;
5390 else if (commit->refs[i]->tag)
5391 type = LINE_MAIN_TAG;
5392 else if (commit->refs[i]->tracked)
5393 type = LINE_MAIN_TRACKED;
5394 else if (commit->refs[i]->remote)
5395 type = LINE_MAIN_REMOTE;
5397 type = LINE_MAIN_REF;
5399 if (draw_text(view, type, "[", TRUE) ||
5400 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5401 draw_text(view, type, "]", TRUE))
5404 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5406 } while (commit->refs[i++]->next);
5409 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5413 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5415 main_read(struct view *view, char *line)
5417 static struct rev_graph *graph = graph_stacks;
5418 enum line_type type;
5419 struct commit *commit;
5424 if (!view->lines && !view->parent)
5425 die("No revisions match the given arguments.");
5426 if (view->lines > 0) {
5427 commit = view->line[view->lines - 1].data;
5428 view->line[view->lines - 1].dirty = 1;
5429 if (!*commit->author) {
5432 graph->commit = NULL;
5435 update_rev_graph(view, graph);
5437 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5438 clear_rev_graph(&graph_stacks[i]);
5442 type = get_line_type(line);
5443 if (type == LINE_COMMIT) {
5444 commit = calloc(1, sizeof(struct commit));
5448 line += STRING_SIZE("commit ");
5450 graph->boundary = 1;
5454 string_copy_rev(commit->id, line);
5455 commit->refs = get_refs(commit->id);
5456 graph->commit = commit;
5457 add_line_data(view, commit, LINE_MAIN_COMMIT);
5459 while ((line = strchr(line, ' '))) {
5461 push_rev_graph(graph->parents, line);
5462 commit->has_parents = TRUE;
5469 commit = view->line[view->lines - 1].data;
5473 if (commit->has_parents)
5475 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5480 /* Parse author lines where the name may be empty:
5481 * author <email@address.tld> 1138474660 +0100
5483 char *ident = line + STRING_SIZE("author ");
5484 char *nameend = strchr(ident, '<');
5485 char *emailend = strchr(ident, '>');
5487 if (!nameend || !emailend)
5490 update_rev_graph(view, graph);
5491 graph = graph->next;
5493 *nameend = *emailend = 0;
5494 ident = chomp_string(ident);
5496 ident = chomp_string(nameend + 1);
5501 string_ncopy(commit->author, ident, strlen(ident));
5502 view->line[view->lines - 1].dirty = 1;
5504 /* Parse epoch and timezone */
5505 if (emailend[1] == ' ') {
5506 char *secs = emailend + 2;
5507 char *zone = strchr(secs, ' ');
5508 time_t time = (time_t) atol(secs);
5510 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5514 tz = ('0' - zone[1]) * 60 * 60 * 10;
5515 tz += ('0' - zone[2]) * 60 * 60;
5516 tz += ('0' - zone[3]) * 60;
5517 tz += ('0' - zone[4]) * 60;
5525 gmtime_r(&time, &commit->time);
5530 /* Fill in the commit title if it has not already been set. */
5531 if (commit->title[0])
5534 /* Require titles to start with a non-space character at the
5535 * offset used by git log. */
5536 if (strncmp(line, " ", 4))
5539 /* Well, if the title starts with a whitespace character,
5540 * try to be forgiving. Otherwise we end up with no title. */
5541 while (isspace(*line))
5545 /* FIXME: More graceful handling of titles; append "..." to
5546 * shortened titles, etc. */
5548 string_ncopy(commit->title, line, strlen(line));
5549 view->line[view->lines - 1].dirty = 1;
5556 main_request(struct view *view, enum request request, struct line *line)
5558 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5562 open_view(view, REQ_VIEW_DIFF, flags);
5566 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5576 grep_refs(struct ref **refs, regex_t *regex)
5584 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5586 } while (refs[i++]->next);
5592 main_grep(struct view *view, struct line *line)
5594 struct commit *commit = line->data;
5595 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5596 char buf[DATE_COLS + 1];
5599 for (state = S_TITLE; state < S_END; state++) {
5603 case S_TITLE: text = commit->title; break;
5607 text = commit->author;
5612 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5619 if (grep_refs(commit->refs, view->regex) == TRUE)
5626 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5634 main_select(struct view *view, struct line *line)
5636 struct commit *commit = line->data;
5638 string_copy_rev(view->ref, commit->id);
5639 string_copy_rev(ref_commit, view->ref);
5642 static struct view_ops main_ops = {
5655 * Unicode / UTF-8 handling
5657 * NOTE: Much of the following code for dealing with unicode is derived from
5658 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5659 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5662 /* I've (over)annotated a lot of code snippets because I am not entirely
5663 * confident that the approach taken by this small UTF-8 interface is correct.
5667 unicode_width(unsigned long c)
5670 (c <= 0x115f /* Hangul Jamo */
5673 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5675 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5676 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5677 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5678 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5679 || (c >= 0xffe0 && c <= 0xffe6)
5680 || (c >= 0x20000 && c <= 0x2fffd)
5681 || (c >= 0x30000 && c <= 0x3fffd)))
5685 return opt_tab_size;
5690 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5691 * Illegal bytes are set one. */
5692 static const unsigned char utf8_bytes[256] = {
5693 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,
5694 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,
5695 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,
5696 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,
5697 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,
5698 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,
5699 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,
5700 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,
5703 /* Decode UTF-8 multi-byte representation into a unicode character. */
5704 static inline unsigned long
5705 utf8_to_unicode(const char *string, size_t length)
5707 unsigned long unicode;
5711 unicode = string[0];
5714 unicode = (string[0] & 0x1f) << 6;
5715 unicode += (string[1] & 0x3f);
5718 unicode = (string[0] & 0x0f) << 12;
5719 unicode += ((string[1] & 0x3f) << 6);
5720 unicode += (string[2] & 0x3f);
5723 unicode = (string[0] & 0x0f) << 18;
5724 unicode += ((string[1] & 0x3f) << 12);
5725 unicode += ((string[2] & 0x3f) << 6);
5726 unicode += (string[3] & 0x3f);
5729 unicode = (string[0] & 0x0f) << 24;
5730 unicode += ((string[1] & 0x3f) << 18);
5731 unicode += ((string[2] & 0x3f) << 12);
5732 unicode += ((string[3] & 0x3f) << 6);
5733 unicode += (string[4] & 0x3f);
5736 unicode = (string[0] & 0x01) << 30;
5737 unicode += ((string[1] & 0x3f) << 24);
5738 unicode += ((string[2] & 0x3f) << 18);
5739 unicode += ((string[3] & 0x3f) << 12);
5740 unicode += ((string[4] & 0x3f) << 6);
5741 unicode += (string[5] & 0x3f);
5744 die("Invalid unicode length");
5747 /* Invalid characters could return the special 0xfffd value but NUL
5748 * should be just as good. */
5749 return unicode > 0xffff ? 0 : unicode;
5752 /* Calculates how much of string can be shown within the given maximum width
5753 * and sets trimmed parameter to non-zero value if all of string could not be
5754 * shown. If the reserve flag is TRUE, it will reserve at least one
5755 * trailing character, which can be useful when drawing a delimiter.
5757 * Returns the number of bytes to output from string to satisfy max_width. */
5759 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5761 const char *start = string;
5762 const char *end = strchr(string, '\0');
5763 unsigned char last_bytes = 0;
5764 size_t last_ucwidth = 0;
5769 while (string < end) {
5770 int c = *(unsigned char *) string;
5771 unsigned char bytes = utf8_bytes[c];
5773 unsigned long unicode;
5775 if (string + bytes > end)
5778 /* Change representation to figure out whether
5779 * it is a single- or double-width character. */
5781 unicode = utf8_to_unicode(string, bytes);
5782 /* FIXME: Graceful handling of invalid unicode character. */
5786 ucwidth = unicode_width(unicode);
5788 if (*width > max_width) {
5791 if (reserve && *width == max_width) {
5792 string -= last_bytes;
5793 *width -= last_ucwidth;
5800 last_ucwidth = ucwidth;
5803 return string - start;
5811 /* Whether or not the curses interface has been initialized. */
5812 static bool cursed = FALSE;
5814 /* The status window is used for polling keystrokes. */
5815 static WINDOW *status_win;
5817 static bool status_empty = TRUE;
5819 /* Update status and title window. */
5821 report(const char *msg, ...)
5823 struct view *view = display[current_view];
5829 char buf[SIZEOF_STR];
5832 va_start(args, msg);
5833 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5834 buf[sizeof(buf) - 1] = 0;
5835 buf[sizeof(buf) - 2] = '.';
5836 buf[sizeof(buf) - 3] = '.';
5837 buf[sizeof(buf) - 4] = '.';
5843 if (!status_empty || *msg) {
5846 va_start(args, msg);
5848 wmove(status_win, 0, 0);
5850 vwprintw(status_win, msg, args);
5851 status_empty = FALSE;
5853 status_empty = TRUE;
5855 wclrtoeol(status_win);
5856 wrefresh(status_win);
5861 update_view_title(view);
5862 update_display_cursor(view);
5865 /* Controls when nodelay should be in effect when polling user input. */
5867 set_nonblocking_input(bool loading)
5869 static unsigned int loading_views;
5871 if ((loading == FALSE && loading_views-- == 1) ||
5872 (loading == TRUE && loading_views++ == 0))
5873 nodelay(status_win, loading);
5881 /* Initialize the curses library */
5882 if (isatty(STDIN_FILENO)) {
5883 cursed = !!initscr();
5886 /* Leave stdin and stdout alone when acting as a pager. */
5887 opt_tty = fopen("/dev/tty", "r+");
5889 die("Failed to open /dev/tty");
5890 cursed = !!newterm(NULL, opt_tty, opt_tty);
5894 die("Failed to initialize curses");
5896 nonl(); /* Tell curses not to do NL->CR/NL on output */
5897 cbreak(); /* Take input chars one at a time, no wait for \n */
5898 noecho(); /* Don't echo input */
5899 leaveok(stdscr, TRUE);
5904 getmaxyx(stdscr, y, x);
5905 status_win = newwin(1, 0, y - 1, 0);
5907 die("Failed to create status window");
5909 /* Enable keyboard mapping */
5910 keypad(status_win, TRUE);
5911 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5913 TABSIZE = opt_tab_size;
5914 if (opt_line_graphics) {
5915 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5920 get_input(bool prompting)
5929 foreach_view (view, i)
5932 /* Refresh, accept single keystroke of input */
5933 key = wgetch(status_win);
5935 /* wgetch() with nodelay() enabled returns ERR when
5936 * there's no input. */
5940 } else if (key == KEY_RESIZE) {
5943 getmaxyx(stdscr, height, width);
5945 /* Resize the status view and let the view driver take
5946 * care of resizing the displayed views. */
5948 redraw_display(TRUE);
5949 wresize(status_win, 1, width);
5950 mvwin(status_win, height - 1, 0);
5951 wrefresh(status_win);
5961 prompt_yesno(const char *prompt)
5963 enum { WAIT, STOP, CANCEL } status = WAIT;
5964 bool answer = FALSE;
5966 while (status == WAIT) {
5969 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
5970 wclrtoeol(status_win);
5972 key = get_input(TRUE);
5993 /* Clear the status window */
5994 status_empty = FALSE;
6001 read_prompt(const char *prompt)
6003 enum { READING, STOP, CANCEL } status = READING;
6004 static char buf[SIZEOF_STR];
6007 while (status == READING) {
6010 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6011 wclrtoeol(status_win);
6013 key = get_input(TRUE);
6018 status = pos ? STOP : CANCEL;
6033 if (pos >= sizeof(buf)) {
6034 report("Input string too long");
6039 buf[pos++] = (char) key;
6043 /* Clear the status window */
6044 status_empty = FALSE;
6047 if (status == CANCEL)
6056 * Repository properties
6060 git_properties(const char **argv, const char *separators,
6061 int (*read_property)(char *, size_t, char *, size_t))
6065 if (init_io_rd(&io, argv, NULL, FORMAT_NONE))
6066 return read_properties(&io, separators, read_property);
6070 static struct ref *refs = NULL;
6071 static size_t refs_alloc = 0;
6072 static size_t refs_size = 0;
6074 /* Id <-> ref store */
6075 static struct ref ***id_refs = NULL;
6076 static size_t id_refs_alloc = 0;
6077 static size_t id_refs_size = 0;
6080 compare_refs(const void *ref1_, const void *ref2_)
6082 const struct ref *ref1 = *(const struct ref **)ref1_;
6083 const struct ref *ref2 = *(const struct ref **)ref2_;
6085 if (ref1->tag != ref2->tag)
6086 return ref2->tag - ref1->tag;
6087 if (ref1->ltag != ref2->ltag)
6088 return ref2->ltag - ref2->ltag;
6089 if (ref1->head != ref2->head)
6090 return ref2->head - ref1->head;
6091 if (ref1->tracked != ref2->tracked)
6092 return ref2->tracked - ref1->tracked;
6093 if (ref1->remote != ref2->remote)
6094 return ref2->remote - ref1->remote;
6095 return strcmp(ref1->name, ref2->name);
6098 static struct ref **
6099 get_refs(const char *id)
6101 struct ref ***tmp_id_refs;
6102 struct ref **ref_list = NULL;
6103 size_t ref_list_alloc = 0;
6104 size_t ref_list_size = 0;
6107 for (i = 0; i < id_refs_size; i++)
6108 if (!strcmp(id, id_refs[i][0]->id))
6111 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6116 id_refs = tmp_id_refs;
6118 for (i = 0; i < refs_size; i++) {
6121 if (strcmp(id, refs[i].id))
6124 tmp = realloc_items(ref_list, &ref_list_alloc,
6125 ref_list_size + 1, sizeof(*ref_list));
6133 ref_list[ref_list_size] = &refs[i];
6134 /* XXX: The properties of the commit chains ensures that we can
6135 * safely modify the shared ref. The repo references will
6136 * always be similar for the same id. */
6137 ref_list[ref_list_size]->next = 1;
6143 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6144 ref_list[ref_list_size - 1]->next = 0;
6145 id_refs[id_refs_size++] = ref_list;
6152 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6157 bool remote = FALSE;
6158 bool tracked = FALSE;
6159 bool check_replace = FALSE;
6162 if (!prefixcmp(name, "refs/tags/")) {
6163 if (!suffixcmp(name, namelen, "^{}")) {
6166 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6167 check_replace = TRUE;
6173 namelen -= STRING_SIZE("refs/tags/");
6174 name += STRING_SIZE("refs/tags/");
6176 } else if (!prefixcmp(name, "refs/remotes/")) {
6178 namelen -= STRING_SIZE("refs/remotes/");
6179 name += STRING_SIZE("refs/remotes/");
6180 tracked = !strcmp(opt_remote, name);
6182 } else if (!prefixcmp(name, "refs/heads/")) {
6183 namelen -= STRING_SIZE("refs/heads/");
6184 name += STRING_SIZE("refs/heads/");
6185 head = !strncmp(opt_head, name, namelen);
6187 } else if (!strcmp(name, "HEAD")) {
6188 string_ncopy(opt_head_rev, id, idlen);
6192 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6193 /* it's an annotated tag, replace the previous sha1 with the
6194 * resolved commit id; relies on the fact git-ls-remote lists
6195 * the commit id of an annotated tag right before the commit id
6197 refs[refs_size - 1].ltag = ltag;
6198 string_copy_rev(refs[refs_size - 1].id, id);
6202 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6206 ref = &refs[refs_size++];
6207 ref->name = malloc(namelen + 1);
6211 strncpy(ref->name, name, namelen);
6212 ref->name[namelen] = 0;
6216 ref->remote = remote;
6217 ref->tracked = tracked;
6218 string_copy_rev(ref->id, id);
6226 static const char *ls_remote_argv[SIZEOF_ARG] = {
6227 "git", "ls-remote", ".", NULL
6229 static bool init = FALSE;
6232 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6239 while (refs_size > 0)
6240 free(refs[--refs_size].name);
6241 while (id_refs_size > 0)
6242 free(id_refs[--id_refs_size]);
6244 return git_properties(ls_remote_argv, "\t", read_ref);
6248 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6250 if (!strcmp(name, "i18n.commitencoding"))
6251 string_ncopy(opt_encoding, value, valuelen);
6253 if (!strcmp(name, "core.editor"))
6254 string_ncopy(opt_editor, value, valuelen);
6256 /* branch.<head>.remote */
6258 !strncmp(name, "branch.", 7) &&
6259 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6260 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6261 string_ncopy(opt_remote, value, valuelen);
6263 if (*opt_head && *opt_remote &&
6264 !strncmp(name, "branch.", 7) &&
6265 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6266 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6267 size_t from = strlen(opt_remote);
6269 if (!prefixcmp(value, "refs/heads/")) {
6270 value += STRING_SIZE("refs/heads/");
6271 valuelen -= STRING_SIZE("refs/heads/");
6274 if (!string_format_from(opt_remote, &from, "/%s", value))
6282 load_git_config(void)
6284 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6286 return git_properties(config_list_argv, "=", read_repo_config_option);
6290 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6292 if (!opt_git_dir[0]) {
6293 string_ncopy(opt_git_dir, name, namelen);
6295 } else if (opt_is_inside_work_tree == -1) {
6296 /* This can be 3 different values depending on the
6297 * version of git being used. If git-rev-parse does not
6298 * understand --is-inside-work-tree it will simply echo
6299 * the option else either "true" or "false" is printed.
6300 * Default to true for the unknown case. */
6301 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6303 string_ncopy(opt_cdup, name, namelen);
6310 load_repo_info(void)
6312 const char *head_argv[] = {
6313 "git", "symbolic-ref", "HEAD", NULL
6315 const char *rev_parse_argv[] = {
6316 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6320 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6321 chomp_string(opt_head);
6322 if (!prefixcmp(opt_head, "refs/heads/")) {
6323 char *offset = opt_head + STRING_SIZE("refs/heads/");
6325 memmove(opt_head, offset, strlen(offset) + 1);
6329 return git_properties(rev_parse_argv, "=", read_repo_info);
6333 read_properties(struct io *io, const char *separators,
6334 int (*read_property)(char *, size_t, char *, size_t))
6342 while (state == OK && (name = io_get(io, '\n', TRUE))) {
6347 name = chomp_string(name);
6348 namelen = strcspn(name, separators);
6350 if (name[namelen]) {
6352 value = chomp_string(name + namelen + 1);
6353 valuelen = strlen(value);
6360 state = read_property(name, namelen, value, valuelen);
6363 if (state != ERR && io_error(io))
6375 static void __NORETURN
6378 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6384 static void __NORETURN
6385 die(const char *err, ...)
6391 va_start(args, err);
6392 fputs("tig: ", stderr);
6393 vfprintf(stderr, err, args);
6394 fputs("\n", stderr);
6401 warn(const char *msg, ...)
6405 va_start(args, msg);
6406 fputs("tig warning: ", stderr);
6407 vfprintf(stderr, msg, args);
6408 fputs("\n", stderr);
6413 main(int argc, const char *argv[])
6415 const char **run_argv = NULL;
6417 enum request request;
6420 signal(SIGINT, quit);
6422 if (setlocale(LC_ALL, "")) {
6423 char *codeset = nl_langinfo(CODESET);
6425 string_ncopy(opt_codeset, codeset, strlen(codeset));
6428 if (load_repo_info() == ERR)
6429 die("Failed to load repo info.");
6431 if (load_options() == ERR)
6432 die("Failed to load user config.");
6434 if (load_git_config() == ERR)
6435 die("Failed to load repo config.");
6437 request = parse_options(argc, argv, &run_argv);
6438 if (request == REQ_NONE)
6441 /* Require a git repository unless when running in pager mode. */
6442 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6443 die("Not a git repository");
6445 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6448 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6449 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6450 if (opt_iconv == ICONV_NONE)
6451 die("Failed to initialize character set conversion");
6454 if (load_refs() == ERR)
6455 die("Failed to load refs.");
6457 foreach_view (view, i)
6458 argv_from_env(view->ops->argv, view->cmd_env);
6462 if (request == REQ_VIEW_PAGER || run_argv) {
6463 if (request == REQ_VIEW_PAGER)
6464 io_open(&VIEW(request)->io, "");
6465 else if (!prepare_update(VIEW(request), run_argv, NULL, FORMAT_NONE))
6466 die("Failed to format arguments");
6467 open_view(NULL, request, OPEN_PREPARED);
6471 while (view_driver(display[current_view], request)) {
6472 int key = get_input(FALSE);
6474 view = display[current_view];
6475 request = get_keybinding(view->keymap, key);
6477 /* Some low-level request handling. This keeps access to
6478 * status_win restricted. */
6482 char *cmd = read_prompt(":");
6485 struct view *next = VIEW(REQ_VIEW_PAGER);
6486 const char *argv[SIZEOF_ARG] = { "git" };
6489 /* When running random commands, initially show the
6490 * command in the title. However, it maybe later be
6491 * overwritten if a commit line is selected. */
6492 string_ncopy(next->ref, cmd, strlen(cmd));
6494 if (!argv_from_string(argv, &argc, cmd)) {
6495 report("Too many arguments");
6496 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6497 report("Failed to format command");
6499 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6507 case REQ_SEARCH_BACK:
6509 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6510 char *search = read_prompt(prompt);
6513 string_ncopy(opt_search, search, strlen(search));