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 if (lineno - view->offset >= view->height) {
2413 view->offset = lineno;
2414 view->lineno = lineno;
2415 if (view_is_displayed(view))
2419 unsigned long old_lineno = view->lineno - view->offset;
2421 view->lineno = lineno;
2422 if (view_is_displayed(view)) {
2423 draw_view_line(view, old_lineno);
2424 draw_view_line(view, view->lineno - view->offset);
2425 redrawwin(view->win);
2426 wrefresh(view->win);
2428 view->ops->select(view, &view->line[view->lineno]);
2434 find_next(struct view *view, enum request request)
2436 unsigned long lineno = view->lineno;
2441 report("No previous search");
2443 search_view(view, request);
2453 case REQ_SEARCH_BACK:
2462 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2463 lineno += direction;
2465 /* Note, lineno is unsigned long so will wrap around in which case it
2466 * will become bigger than view->lines. */
2467 for (; lineno < view->lines; lineno += direction) {
2468 if (view->ops->grep(view, &view->line[lineno])) {
2469 select_view_line(view, lineno);
2470 report("Line %ld matches '%s'", lineno + 1, view->grep);
2475 report("No match found for '%s'", view->grep);
2479 search_view(struct view *view, enum request request)
2484 regfree(view->regex);
2487 view->regex = calloc(1, sizeof(*view->regex));
2492 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2493 if (regex_err != 0) {
2494 char buf[SIZEOF_STR] = "unknown error";
2496 regerror(regex_err, view->regex, buf, sizeof(buf));
2497 report("Search failed: %s", buf);
2501 string_copy(view->grep, opt_search);
2503 find_next(view, request);
2507 * Incremental updating
2511 reset_view(struct view *view)
2515 for (i = 0; i < view->lines; i++)
2516 free(view->line[i].data);
2523 view->line_alloc = 0;
2525 view->update_secs = 0;
2529 free_argv(const char *argv[])
2533 for (argc = 0; argv[argc]; argc++)
2534 free((void *) argv[argc]);
2538 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2540 char buf[SIZEOF_STR];
2542 bool noreplace = flags == FORMAT_NONE;
2544 free_argv(dst_argv);
2546 for (argc = 0; src_argv[argc]; argc++) {
2547 const char *arg = src_argv[argc];
2551 char *next = strstr(arg, "%(");
2552 int len = next - arg;
2555 if (!next || noreplace) {
2556 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2561 } else if (!prefixcmp(next, "%(directory)")) {
2564 } else if (!prefixcmp(next, "%(file)")) {
2567 } else if (!prefixcmp(next, "%(ref)")) {
2568 value = *opt_ref ? opt_ref : "HEAD";
2570 } else if (!prefixcmp(next, "%(head)")) {
2573 } else if (!prefixcmp(next, "%(commit)")) {
2576 } else if (!prefixcmp(next, "%(blob)")) {
2580 report("Unknown replacement: `%s`", next);
2584 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2587 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2590 dst_argv[argc] = strdup(buf);
2591 if (!dst_argv[argc])
2595 dst_argv[argc] = NULL;
2597 return src_argv[argc] == NULL;
2601 end_update(struct view *view, bool force)
2605 while (!view->ops->read(view, NULL))
2608 set_nonblocking_input(FALSE);
2610 kill_io(view->pipe);
2611 done_io(view->pipe);
2616 setup_update(struct view *view, const char *vid)
2618 set_nonblocking_input(TRUE);
2620 string_copy_rev(view->vid, vid);
2621 view->pipe = &view->io;
2622 view->start_time = time(NULL);
2626 prepare_update(struct view *view, const char *argv[], const char *dir,
2627 enum format_flags flags)
2630 end_update(view, TRUE);
2631 return init_io_rd(&view->io, argv, dir, flags);
2635 prepare_update_file(struct view *view, const char *name)
2638 end_update(view, TRUE);
2639 return io_open(&view->io, name);
2643 begin_update(struct view *view, bool refresh)
2646 end_update(view, TRUE);
2649 if (!start_io(&view->io))
2653 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2656 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2659 /* Put the current ref_* value to the view title ref
2660 * member. This is needed by the blob view. Most other
2661 * views sets it automatically after loading because the
2662 * first line is a commit line. */
2663 string_copy_rev(view->ref, view->id);
2666 setup_update(view, view->id);
2671 #define ITEM_CHUNK_SIZE 256
2673 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2675 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2676 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2678 if (mem == NULL || num_chunks != num_chunks_new) {
2679 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2680 mem = realloc(mem, *size * item_size);
2686 static struct line *
2687 realloc_lines(struct view *view, size_t line_size)
2689 size_t alloc = view->line_alloc;
2690 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2691 sizeof(*view->line));
2697 view->line_alloc = alloc;
2702 update_view(struct view *view)
2704 char out_buffer[BUFSIZ * 2];
2706 /* Clear the view and redraw everything since the tree sorting
2707 * might have rearranged things. */
2708 bool redraw = view->lines == 0;
2709 bool can_read = TRUE;
2714 if (!io_can_read(view->pipe)) {
2715 if (view->lines == 0) {
2716 time_t secs = time(NULL) - view->start_time;
2718 if (secs > view->update_secs) {
2719 if (view->update_secs == 0)
2721 update_view_title(view);
2722 view->update_secs = secs;
2728 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2729 if (opt_iconv != ICONV_NONE) {
2730 ICONV_CONST char *inbuf = line;
2731 size_t inlen = strlen(line) + 1;
2733 char *outbuf = out_buffer;
2734 size_t outlen = sizeof(out_buffer);
2738 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2739 if (ret != (size_t) -1)
2743 if (!view->ops->read(view, line))
2748 unsigned long lines = view->lines;
2751 for (digits = 0; lines; digits++)
2754 /* Keep the displayed view in sync with line number scaling. */
2755 if (digits != view->digits) {
2756 view->digits = digits;
2757 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2762 if (io_error(view->pipe)) {
2763 report("Failed to read: %s", io_strerror(view->pipe));
2764 end_update(view, TRUE);
2766 } else if (io_eof(view->pipe)) {
2768 end_update(view, FALSE);
2771 if (!view_is_displayed(view))
2775 redraw_view_from(view, 0);
2777 redraw_view_dirty(view);
2779 /* Update the title _after_ the redraw so that if the redraw picks up a
2780 * commit reference in view->ref it'll be available here. */
2781 update_view_title(view);
2785 report("Allocation failure");
2786 end_update(view, TRUE);
2790 static struct line *
2791 add_line_data(struct view *view, void *data, enum line_type type)
2795 if (!realloc_lines(view, view->lines + 1))
2798 line = &view->line[view->lines++];
2799 memset(line, 0, sizeof(*line));
2807 static struct line *
2808 add_line_text(struct view *view, const char *text, enum line_type type)
2810 char *data = text ? strdup(text) : NULL;
2812 return data ? add_line_data(view, data, type) : NULL;
2815 static struct line *
2816 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2818 char buf[SIZEOF_STR];
2821 va_start(args, fmt);
2822 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2826 return buf[0] ? add_line_text(view, buf, type) : NULL;
2834 OPEN_DEFAULT = 0, /* Use default view switching. */
2835 OPEN_SPLIT = 1, /* Split current view. */
2836 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2837 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2838 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2839 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2840 OPEN_PREPARED = 32, /* Open already prepared command. */
2844 open_view(struct view *prev, enum request request, enum open_flags flags)
2846 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2847 bool split = !!(flags & OPEN_SPLIT);
2848 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2849 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2850 struct view *view = VIEW(request);
2851 int nviews = displayed_views();
2852 struct view *base_view = display[0];
2854 if (view == prev && nviews == 1 && !reload) {
2855 report("Already in %s view", view->name);
2859 if (view->git_dir && !opt_git_dir[0]) {
2860 report("The %s view is disabled in pager view", view->name);
2868 } else if (!nomaximize) {
2869 /* Maximize the current view. */
2870 memset(display, 0, sizeof(display));
2872 display[current_view] = view;
2875 /* Resize the view when switching between split- and full-screen,
2876 * or when switching between two different full-screen views. */
2877 if (nviews != displayed_views() ||
2878 (nviews == 1 && base_view != display[0]))
2881 if (view->ops->open) {
2882 if (!view->ops->open(view)) {
2883 report("Failed to load %s view", view->name);
2887 } else if ((reload || strcmp(view->vid, view->id)) &&
2888 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2889 report("Failed to load %s view", view->name);
2893 if (split && prev->lineno - prev->offset >= prev->height) {
2894 /* Take the title line into account. */
2895 int lines = prev->lineno - prev->offset - prev->height + 1;
2897 /* Scroll the view that was split if the current line is
2898 * outside the new limited view. */
2899 do_scroll_view(prev, lines);
2902 if (prev && view != prev) {
2903 if (split && !backgrounded) {
2904 /* "Blur" the previous view. */
2905 update_view_title(prev);
2908 view->parent = prev;
2911 if (view->pipe && view->lines == 0) {
2912 /* Clear the old view and let the incremental updating refill
2916 } else if (view_is_displayed(view)) {
2921 /* If the view is backgrounded the above calls to report()
2922 * won't redraw the view title. */
2924 update_view_title(view);
2928 open_external_viewer(const char *argv[], const char *dir)
2930 def_prog_mode(); /* save current tty modes */
2931 endwin(); /* restore original tty modes */
2932 run_io_fg(argv, dir);
2933 fprintf(stderr, "Press Enter to continue");
2936 redraw_display(TRUE);
2940 open_mergetool(const char *file)
2942 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
2944 open_external_viewer(mergetool_argv, opt_cdup);
2948 open_editor(bool from_root, const char *file)
2950 const char *editor_argv[] = { "vi", file, NULL };
2953 editor = getenv("GIT_EDITOR");
2954 if (!editor && *opt_editor)
2955 editor = opt_editor;
2957 editor = getenv("VISUAL");
2959 editor = getenv("EDITOR");
2963 editor_argv[0] = editor;
2964 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
2968 open_run_request(enum request request)
2970 struct run_request *req = get_run_request(request);
2971 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
2974 report("Unknown run request");
2978 if (format_argv(argv, req->argv, FORMAT_ALL))
2979 open_external_viewer(argv, NULL);
2984 * User request switch noodle
2988 view_driver(struct view *view, enum request request)
2992 if (request == REQ_NONE) {
2997 if (request > REQ_NONE) {
2998 open_run_request(request);
2999 /* FIXME: When all views can refresh always do this. */
3000 if (view == VIEW(REQ_VIEW_STATUS) ||
3001 view == VIEW(REQ_VIEW_MAIN) ||
3002 view == VIEW(REQ_VIEW_LOG) ||
3003 view == VIEW(REQ_VIEW_STAGE))
3004 request = REQ_REFRESH;
3009 if (view && view->lines) {
3010 request = view->ops->request(view, request, &view->line[view->lineno]);
3011 if (request == REQ_NONE)
3018 case REQ_MOVE_PAGE_UP:
3019 case REQ_MOVE_PAGE_DOWN:
3020 case REQ_MOVE_FIRST_LINE:
3021 case REQ_MOVE_LAST_LINE:
3022 move_view(view, request);
3025 case REQ_SCROLL_LINE_DOWN:
3026 case REQ_SCROLL_LINE_UP:
3027 case REQ_SCROLL_PAGE_DOWN:
3028 case REQ_SCROLL_PAGE_UP:
3029 scroll_view(view, request);
3032 case REQ_VIEW_BLAME:
3034 report("No file chosen, press %s to open tree view",
3035 get_key(REQ_VIEW_TREE));
3038 open_view(view, request, OPEN_DEFAULT);
3043 report("No file chosen, press %s to open tree view",
3044 get_key(REQ_VIEW_TREE));
3047 open_view(view, request, OPEN_DEFAULT);
3050 case REQ_VIEW_PAGER:
3051 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3052 report("No pager content, press %s to run command from prompt",
3053 get_key(REQ_PROMPT));
3056 open_view(view, request, OPEN_DEFAULT);
3059 case REQ_VIEW_STAGE:
3060 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3061 report("No stage content, press %s to open the status view and choose file",
3062 get_key(REQ_VIEW_STATUS));
3065 open_view(view, request, OPEN_DEFAULT);
3068 case REQ_VIEW_STATUS:
3069 if (opt_is_inside_work_tree == FALSE) {
3070 report("The status view requires a working tree");
3073 open_view(view, request, OPEN_DEFAULT);
3081 open_view(view, request, OPEN_DEFAULT);
3086 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3088 if ((view == VIEW(REQ_VIEW_DIFF) &&
3089 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3090 (view == VIEW(REQ_VIEW_DIFF) &&
3091 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3092 (view == VIEW(REQ_VIEW_STAGE) &&
3093 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3094 (view == VIEW(REQ_VIEW_BLOB) &&
3095 view->parent == VIEW(REQ_VIEW_TREE))) {
3098 view = view->parent;
3099 line = view->lineno;
3100 move_view(view, request);
3101 if (view_is_displayed(view))
3102 update_view_title(view);
3103 if (line != view->lineno)
3104 view->ops->request(view, REQ_ENTER,
3105 &view->line[view->lineno]);
3108 move_view(view, request);
3114 int nviews = displayed_views();
3115 int next_view = (current_view + 1) % nviews;
3117 if (next_view == current_view) {
3118 report("Only one view is displayed");
3122 current_view = next_view;
3123 /* Blur out the title of the previous view. */
3124 update_view_title(view);
3129 report("Refreshing is not yet supported for the %s view", view->name);
3133 if (displayed_views() == 2)
3134 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3137 case REQ_TOGGLE_LINENO:
3138 toggle_view_option(&opt_line_number, "line numbers");
3141 case REQ_TOGGLE_DATE:
3142 toggle_view_option(&opt_date, "date display");
3145 case REQ_TOGGLE_AUTHOR:
3146 toggle_view_option(&opt_author, "author display");
3149 case REQ_TOGGLE_REV_GRAPH:
3150 toggle_view_option(&opt_rev_graph, "revision graph display");
3153 case REQ_TOGGLE_REFS:
3154 toggle_view_option(&opt_show_refs, "reference display");
3158 case REQ_SEARCH_BACK:
3159 search_view(view, request);
3164 find_next(view, request);
3167 case REQ_STOP_LOADING:
3168 for (i = 0; i < ARRAY_SIZE(views); i++) {
3171 report("Stopped loading the %s view", view->name),
3172 end_update(view, TRUE);
3176 case REQ_SHOW_VERSION:
3177 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3180 case REQ_SCREEN_REDRAW:
3181 redraw_display(TRUE);
3185 report("Nothing to edit");
3189 report("Nothing to enter");
3192 case REQ_VIEW_CLOSE:
3193 /* XXX: Mark closed views by letting view->parent point to the
3194 * view itself. Parents to closed view should never be
3197 view->parent->parent != view->parent) {
3198 memset(display, 0, sizeof(display));
3200 display[current_view] = view->parent;
3201 view->parent = view;
3203 redraw_display(FALSE);
3212 report("Unknown key, press 'h' for help");
3225 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3227 char *text = line->data;
3229 if (opt_line_number && draw_lineno(view, lineno))
3232 draw_text(view, line->type, text, TRUE);
3237 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3239 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3240 char refbuf[SIZEOF_STR];
3243 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3244 ref = chomp_string(refbuf);
3249 /* This is the only fatal call, since it can "corrupt" the buffer. */
3250 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3257 add_pager_refs(struct view *view, struct line *line)
3259 char buf[SIZEOF_STR];
3260 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3262 size_t bufpos = 0, refpos = 0;
3263 const char *sep = "Refs: ";
3264 bool is_tag = FALSE;
3266 assert(line->type == LINE_COMMIT);
3268 refs = get_refs(commit_id);
3270 if (view == VIEW(REQ_VIEW_DIFF))
3271 goto try_add_describe_ref;
3276 struct ref *ref = refs[refpos];
3277 const char *fmt = ref->tag ? "%s[%s]" :
3278 ref->remote ? "%s<%s>" : "%s%s";
3280 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3285 } while (refs[refpos++]->next);
3287 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3288 try_add_describe_ref:
3289 /* Add <tag>-g<commit_id> "fake" reference. */
3290 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3297 add_line_text(view, buf, LINE_PP_REFS);
3301 pager_read(struct view *view, char *data)
3308 line = add_line_text(view, data, get_line_type(data));
3312 if (line->type == LINE_COMMIT &&
3313 (view == VIEW(REQ_VIEW_DIFF) ||
3314 view == VIEW(REQ_VIEW_LOG)))
3315 add_pager_refs(view, line);
3321 pager_request(struct view *view, enum request request, struct line *line)
3325 if (request != REQ_ENTER)
3328 if (line->type == LINE_COMMIT &&
3329 (view == VIEW(REQ_VIEW_LOG) ||
3330 view == VIEW(REQ_VIEW_PAGER))) {
3331 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3335 /* Always scroll the view even if it was split. That way
3336 * you can use Enter to scroll through the log view and
3337 * split open each commit diff. */
3338 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3340 /* FIXME: A minor workaround. Scrolling the view will call report("")
3341 * but if we are scrolling a non-current view this won't properly
3342 * update the view title. */
3344 update_view_title(view);
3350 pager_grep(struct view *view, struct line *line)
3353 char *text = line->data;
3358 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3365 pager_select(struct view *view, struct line *line)
3367 if (line->type == LINE_COMMIT) {
3368 char *text = (char *)line->data + STRING_SIZE("commit ");
3370 if (view != VIEW(REQ_VIEW_PAGER))
3371 string_copy_rev(view->ref, text);
3372 string_copy_rev(ref_commit, text);
3376 static struct view_ops pager_ops = {
3387 static const char *log_argv[SIZEOF_ARG] = {
3388 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3392 log_request(struct view *view, enum request request, struct line *line)
3397 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3400 return pager_request(view, request, line);
3404 static struct view_ops log_ops = {
3415 static const char *diff_argv[SIZEOF_ARG] = {
3416 "git", "show", "--pretty=fuller", "--no-color", "--root",
3417 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3420 static struct view_ops diff_ops = {
3436 help_open(struct view *view)
3438 int lines = ARRAY_SIZE(req_info) + 2;
3441 if (view->lines > 0)
3444 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3445 if (!req_info[i].request)
3448 lines += run_requests + 1;
3450 view->line = calloc(lines, sizeof(*view->line));
3454 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3456 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3459 if (req_info[i].request == REQ_NONE)
3462 if (!req_info[i].request) {
3463 add_line_text(view, "", LINE_DEFAULT);
3464 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3468 key = get_key(req_info[i].request);
3470 key = "(no key defined)";
3472 add_line_format(view, LINE_DEFAULT, " %-25s %s",
3473 key, req_info[i].help);
3477 add_line_text(view, "", LINE_DEFAULT);
3478 add_line_text(view, "External commands:", LINE_DEFAULT);
3481 for (i = 0; i < run_requests; i++) {
3482 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3484 char cmd[SIZEOF_STR];
3491 key = get_key_name(req->key);
3493 key = "(no key defined)";
3495 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3496 if (!string_format_from(cmd, &bufpos, "%s%s",
3497 argc ? " " : "", req->argv[argc]))
3500 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3501 keymap_table[req->keymap].name, key, cmd);
3507 static struct view_ops help_ops = {
3523 struct tree_stack_entry {
3524 struct tree_stack_entry *prev; /* Entry below this in the stack */
3525 unsigned long lineno; /* Line number to restore */
3526 char *name; /* Position of name in opt_path */
3529 /* The top of the path stack. */
3530 static struct tree_stack_entry *tree_stack = NULL;
3531 unsigned long tree_lineno = 0;
3534 pop_tree_stack_entry(void)
3536 struct tree_stack_entry *entry = tree_stack;
3538 tree_lineno = entry->lineno;
3540 tree_stack = entry->prev;
3545 push_tree_stack_entry(const char *name, unsigned long lineno)
3547 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3548 size_t pathlen = strlen(opt_path);
3553 entry->prev = tree_stack;
3554 entry->name = opt_path + pathlen;
3557 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3558 pop_tree_stack_entry();
3562 /* Move the current line to the first tree entry. */
3564 entry->lineno = lineno;
3567 /* Parse output from git-ls-tree(1):
3569 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3570 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3571 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3572 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3575 #define SIZEOF_TREE_ATTR \
3576 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3578 #define TREE_UP_FORMAT "040000 tree %s\t.."
3581 tree_path(struct line *line)
3583 const char *path = line->data;
3585 return path + SIZEOF_TREE_ATTR;
3589 tree_compare_entry(struct line *line1, struct line *line2)
3591 if (line1->type != line2->type)
3592 return line1->type == LINE_TREE_DIR ? -1 : 1;
3593 return strcmp(tree_path(line1), tree_path(line2));
3597 tree_read(struct view *view, char *text)
3599 size_t textlen = text ? strlen(text) : 0;
3600 struct line *entry, *line;
3601 enum line_type type;
3605 if (textlen <= SIZEOF_TREE_ATTR)
3608 type = text[STRING_SIZE("100644 ")] == 't'
3609 ? LINE_TREE_DIR : LINE_TREE_FILE;
3611 if (view->lines == 0 &&
3612 !add_line_format(view, LINE_DEFAULT, "Directory path /%s", opt_path))
3615 /* Strip the path part ... */
3617 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3618 size_t striplen = strlen(opt_path);
3619 char *path = text + SIZEOF_TREE_ATTR;
3621 if (pathlen > striplen)
3622 memmove(path, path + striplen,
3623 pathlen - striplen + 1);
3625 /* Insert "link" to parent directory. */
3626 if (view->lines == 1 &&
3627 !add_line_format(view, LINE_TREE_DIR, TREE_UP_FORMAT, view->ref))
3631 entry = add_line_text(view, text, type);
3636 /* Skip "Directory ..." and ".." line. */
3637 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3638 if (tree_compare_entry(line, entry) <= 0)
3641 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3645 for (; line <= entry; line++)
3646 line->dirty = line->cleareol = 1;
3650 if (tree_lineno > view->lineno) {
3651 view->lineno = tree_lineno;
3661 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
3662 int fd = mkstemp(file);
3665 report("Failed to create temporary file");
3666 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
3667 report("Failed to save blob data to file");
3669 open_editor(FALSE, file);
3675 tree_request(struct view *view, enum request request, struct line *line)
3677 enum open_flags flags;
3680 case REQ_VIEW_BLAME:
3681 if (line->type != LINE_TREE_FILE) {
3682 report("Blame only supported for files");
3686 string_copy(opt_ref, view->vid);
3690 if (line->type != LINE_TREE_FILE) {
3691 report("Edit only supported for files");
3692 } else if (!is_head_commit(view->vid)) {
3695 open_editor(TRUE, opt_file);
3699 case REQ_TREE_PARENT:
3701 /* quit view if at top of tree */
3702 return REQ_VIEW_CLOSE;
3705 line = &view->line[1];
3715 /* Cleanup the stack if the tree view is at a different tree. */
3716 while (!*opt_path && tree_stack)
3717 pop_tree_stack_entry();
3719 switch (line->type) {
3721 /* Depending on whether it is a subdir or parent (updir?) link
3722 * mangle the path buffer. */
3723 if (line == &view->line[1] && *opt_path) {
3724 pop_tree_stack_entry();
3727 const char *basename = tree_path(line);
3729 push_tree_stack_entry(basename, view->lineno);
3732 /* Trees and subtrees share the same ID, so they are not not
3733 * unique like blobs. */
3734 flags = OPEN_RELOAD;
3735 request = REQ_VIEW_TREE;
3738 case LINE_TREE_FILE:
3739 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3740 request = REQ_VIEW_BLOB;
3747 open_view(view, request, flags);
3748 if (request == REQ_VIEW_TREE) {
3749 view->lineno = tree_lineno;
3756 tree_select(struct view *view, struct line *line)
3758 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3760 if (line->type == LINE_TREE_FILE) {
3761 string_copy_rev(ref_blob, text);
3762 string_format(opt_file, "%s%s", opt_path, tree_path(line));
3764 } else if (line->type != LINE_TREE_DIR) {
3768 string_copy_rev(view->ref, text);
3771 static const char *tree_argv[SIZEOF_ARG] = {
3772 "git", "ls-tree", "%(commit)", "%(directory)", NULL
3775 static struct view_ops tree_ops = {
3787 blob_read(struct view *view, char *line)
3791 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3795 blob_request(struct view *view, enum request request, struct line *line)
3802 return pager_request(view, request, line);
3806 static const char *blob_argv[SIZEOF_ARG] = {
3807 "git", "cat-file", "blob", "%(blob)", NULL
3810 static struct view_ops blob_ops = {
3824 * Loading the blame view is a two phase job:
3826 * 1. File content is read either using opt_file from the
3827 * filesystem or using git-cat-file.
3828 * 2. Then blame information is incrementally added by
3829 * reading output from git-blame.
3832 static const char *blame_head_argv[] = {
3833 "git", "blame", "--incremental", "--", "%(file)", NULL
3836 static const char *blame_ref_argv[] = {
3837 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
3840 static const char *blame_cat_file_argv[] = {
3841 "git", "cat-file", "blob", "%(ref):%(file)", NULL
3844 struct blame_commit {
3845 char id[SIZEOF_REV]; /* SHA1 ID. */
3846 char title[128]; /* First line of the commit message. */
3847 char author[75]; /* Author of the commit. */
3848 struct tm time; /* Date from the author ident. */
3849 char filename[128]; /* Name of file. */
3853 struct blame_commit *commit;
3858 blame_open(struct view *view)
3860 if (*opt_ref || !io_open(&view->io, opt_file)) {
3861 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
3865 setup_update(view, opt_file);
3866 string_format(view->ref, "%s ...", opt_file);
3871 static struct blame_commit *
3872 get_blame_commit(struct view *view, const char *id)
3876 for (i = 0; i < view->lines; i++) {
3877 struct blame *blame = view->line[i].data;
3882 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3883 return blame->commit;
3887 struct blame_commit *commit = calloc(1, sizeof(*commit));
3890 string_ncopy(commit->id, id, SIZEOF_REV);
3896 parse_number(const char **posref, size_t *number, size_t min, size_t max)
3898 const char *pos = *posref;
3901 pos = strchr(pos + 1, ' ');
3902 if (!pos || !isdigit(pos[1]))
3904 *number = atoi(pos + 1);
3905 if (*number < min || *number > max)
3912 static struct blame_commit *
3913 parse_blame_commit(struct view *view, const char *text, int *blamed)
3915 struct blame_commit *commit;
3916 struct blame *blame;
3917 const char *pos = text + SIZEOF_REV - 1;
3921 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3924 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3925 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3928 commit = get_blame_commit(view, text);
3934 struct line *line = &view->line[lineno + group - 1];
3937 blame->commit = commit;
3945 blame_read_file(struct view *view, const char *line, bool *read_file)
3948 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
3951 if (view->lines == 0 && !view->parent)
3952 die("No blame exist for %s", view->vid);
3954 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
3955 report("Failed to load blame data");
3959 done_io(view->pipe);
3965 size_t linelen = strlen(line);
3966 struct blame *blame = malloc(sizeof(*blame) + linelen);
3968 blame->commit = NULL;
3969 strncpy(blame->text, line, linelen);
3970 blame->text[linelen] = 0;
3971 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3976 match_blame_header(const char *name, char **line)
3978 size_t namelen = strlen(name);
3979 bool matched = !strncmp(name, *line, namelen);
3988 blame_read(struct view *view, char *line)
3990 static struct blame_commit *commit = NULL;
3991 static int blamed = 0;
3992 static time_t author_time;
3993 static bool read_file = TRUE;
3996 return blame_read_file(view, line, &read_file);
4003 string_format(view->ref, "%s", view->vid);
4004 if (view_is_displayed(view)) {
4005 update_view_title(view);
4006 redraw_view_from(view, 0);
4012 commit = parse_blame_commit(view, line, &blamed);
4013 string_format(view->ref, "%s %2d%%", view->vid,
4014 blamed * 100 / view->lines);
4016 } else if (match_blame_header("author ", &line)) {
4017 string_ncopy(commit->author, line, strlen(line));
4019 } else if (match_blame_header("author-time ", &line)) {
4020 author_time = (time_t) atol(line);
4022 } else if (match_blame_header("author-tz ", &line)) {
4025 tz = ('0' - line[1]) * 60 * 60 * 10;
4026 tz += ('0' - line[2]) * 60 * 60;
4027 tz += ('0' - line[3]) * 60;
4028 tz += ('0' - line[4]) * 60;
4034 gmtime_r(&author_time, &commit->time);
4036 } else if (match_blame_header("summary ", &line)) {
4037 string_ncopy(commit->title, line, strlen(line));
4039 } else if (match_blame_header("filename ", &line)) {
4040 string_ncopy(commit->filename, line, strlen(line));
4048 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4050 struct blame *blame = line->data;
4051 struct tm *time = NULL;
4052 const char *id = NULL, *author = NULL;
4054 if (blame->commit && *blame->commit->filename) {
4055 id = blame->commit->id;
4056 author = blame->commit->author;
4057 time = &blame->commit->time;
4060 if (opt_date && draw_date(view, time))
4064 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
4067 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4070 if (draw_lineno(view, lineno))
4073 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4078 check_blame_commit(struct blame *blame)
4081 report("Commit data not loaded yet");
4082 else if (!strcmp(blame->commit->id, NULL_ID))
4083 report("No commit exist for the selected line");
4090 blame_request(struct view *view, enum request request, struct line *line)
4092 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4093 struct blame *blame = line->data;
4096 case REQ_VIEW_BLAME:
4097 if (check_blame_commit(blame)) {
4098 string_copy(opt_ref, blame->commit->id);
4099 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4104 if (!blame->commit) {
4105 report("No commit loaded yet");
4109 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4110 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4113 if (!strcmp(blame->commit->id, NULL_ID)) {
4114 struct view *diff = VIEW(REQ_VIEW_DIFF);
4115 const char *diff_index_argv[] = {
4116 "git", "diff-index", "--root", "--cached",
4117 "--patch-with-stat", "-C", "-M",
4118 "HEAD", "--", view->vid, NULL
4121 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4122 report("Failed to allocate diff command");
4125 flags |= OPEN_PREPARED;
4128 open_view(view, REQ_VIEW_DIFF, flags);
4139 blame_grep(struct view *view, struct line *line)
4141 struct blame *blame = line->data;
4142 struct blame_commit *commit = blame->commit;
4145 #define MATCH(text, on) \
4146 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4149 char buf[DATE_COLS + 1];
4151 if (MATCH(commit->title, 1) ||
4152 MATCH(commit->author, opt_author) ||
4153 MATCH(commit->id, opt_date))
4156 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4161 return MATCH(blame->text, 1);
4167 blame_select(struct view *view, struct line *line)
4169 struct blame *blame = line->data;
4170 struct blame_commit *commit = blame->commit;
4175 if (!strcmp(commit->id, NULL_ID))
4176 string_ncopy(ref_commit, "HEAD", 4);
4178 string_copy_rev(ref_commit, commit->id);
4181 static struct view_ops blame_ops = {
4200 char rev[SIZEOF_REV];
4201 char name[SIZEOF_STR];
4205 char rev[SIZEOF_REV];
4206 char name[SIZEOF_STR];
4210 static char status_onbranch[SIZEOF_STR];
4211 static struct status stage_status;
4212 static enum line_type stage_line_type;
4213 static size_t stage_chunks;
4214 static int *stage_chunk;
4216 /* This should work even for the "On branch" line. */
4218 status_has_none(struct view *view, struct line *line)
4220 return line < view->line + view->lines && !line[1].data;
4223 /* Get fields from the diff line:
4224 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4227 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4229 const char *old_mode = buf + 1;
4230 const char *new_mode = buf + 8;
4231 const char *old_rev = buf + 15;
4232 const char *new_rev = buf + 56;
4233 const char *status = buf + 97;
4236 old_mode[-1] != ':' ||
4237 new_mode[-1] != ' ' ||
4238 old_rev[-1] != ' ' ||
4239 new_rev[-1] != ' ' ||
4243 file->status = *status;
4245 string_copy_rev(file->old.rev, old_rev);
4246 string_copy_rev(file->new.rev, new_rev);
4248 file->old.mode = strtoul(old_mode, NULL, 8);
4249 file->new.mode = strtoul(new_mode, NULL, 8);
4251 file->old.name[0] = file->new.name[0] = 0;
4257 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4259 struct status *file = NULL;
4260 struct status *unmerged = NULL;
4264 if (!run_io(&io, argv, NULL, IO_RD))
4267 add_line_data(view, NULL, type);
4269 while ((buf = io_get(&io, 0, TRUE))) {
4271 file = calloc(1, sizeof(*file));
4272 if (!file || !add_line_data(view, file, type))
4276 /* Parse diff info part. */
4278 file->status = status;
4280 string_copy(file->old.rev, NULL_ID);
4282 } else if (!file->status) {
4283 if (!status_get_diff(file, buf, strlen(buf)))
4286 buf = io_get(&io, 0, TRUE);
4290 /* Collapse all 'M'odified entries that follow a
4291 * associated 'U'nmerged entry. */
4292 if (file->status == 'U') {
4295 } else if (unmerged) {
4296 int collapse = !strcmp(buf, unmerged->new.name);
4307 /* Grab the old name for rename/copy. */
4308 if (!*file->old.name &&
4309 (file->status == 'R' || file->status == 'C')) {
4310 string_ncopy(file->old.name, buf, strlen(buf));
4312 buf = io_get(&io, 0, TRUE);
4317 /* git-ls-files just delivers a NUL separated list of
4318 * file names similar to the second half of the
4319 * git-diff-* output. */
4320 string_ncopy(file->new.name, buf, strlen(buf));
4321 if (!*file->old.name)
4322 string_copy(file->old.name, file->new.name);
4326 if (io_error(&io)) {
4332 if (!view->line[view->lines - 1].data)
4333 add_line_data(view, NULL, LINE_STAT_NONE);
4339 /* Don't show unmerged entries in the staged section. */
4340 static const char *status_diff_index_argv[] = {
4341 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4342 "--cached", "-M", "HEAD", NULL
4345 static const char *status_diff_files_argv[] = {
4346 "git", "diff-files", "-z", NULL
4349 static const char *status_list_other_argv[] = {
4350 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4353 static const char *status_list_no_head_argv[] = {
4354 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4357 static const char *update_index_argv[] = {
4358 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4361 /* First parse staged info using git-diff-index(1), then parse unstaged
4362 * info using git-diff-files(1), and finally untracked files using
4363 * git-ls-files(1). */
4365 status_open(struct view *view)
4367 unsigned long prev_lineno = view->lineno;
4371 add_line_data(view, NULL, LINE_STAT_HEAD);
4372 if (is_initial_commit())
4373 string_copy(status_onbranch, "Initial commit");
4374 else if (!*opt_head)
4375 string_copy(status_onbranch, "Not currently on any branch");
4376 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4379 run_io_bg(update_index_argv);
4381 if (is_initial_commit()) {
4382 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4384 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4388 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4389 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4392 /* If all went well restore the previous line number to stay in
4393 * the context or select a line with something that can be
4395 if (prev_lineno >= view->lines)
4396 prev_lineno = view->lines - 1;
4397 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4399 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4402 /* If the above fails, always skip the "On branch" line. */
4403 if (prev_lineno < view->lines)
4404 view->lineno = prev_lineno;
4408 if (view->lineno < view->offset)
4409 view->offset = view->lineno;
4410 else if (view->offset + view->height <= view->lineno)
4411 view->offset = view->lineno - view->height + 1;
4417 status_draw(struct view *view, struct line *line, unsigned int lineno)
4419 struct status *status = line->data;
4420 enum line_type type;
4424 switch (line->type) {
4425 case LINE_STAT_STAGED:
4426 type = LINE_STAT_SECTION;
4427 text = "Changes to be committed:";
4430 case LINE_STAT_UNSTAGED:
4431 type = LINE_STAT_SECTION;
4432 text = "Changed but not updated:";
4435 case LINE_STAT_UNTRACKED:
4436 type = LINE_STAT_SECTION;
4437 text = "Untracked files:";
4440 case LINE_STAT_NONE:
4441 type = LINE_DEFAULT;
4442 text = " (no files)";
4445 case LINE_STAT_HEAD:
4446 type = LINE_STAT_HEAD;
4447 text = status_onbranch;
4454 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4456 buf[0] = status->status;
4457 if (draw_text(view, line->type, buf, TRUE))
4459 type = LINE_DEFAULT;
4460 text = status->new.name;
4463 draw_text(view, type, text, TRUE);
4468 status_enter(struct view *view, struct line *line)
4470 struct status *status = line->data;
4471 const char *oldpath = status ? status->old.name : NULL;
4472 /* Diffs for unmerged entries are empty when passing the new
4473 * path, so leave it empty. */
4474 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4476 enum open_flags split;
4477 struct view *stage = VIEW(REQ_VIEW_STAGE);
4479 if (line->type == LINE_STAT_NONE ||
4480 (!status && line[1].type == LINE_STAT_NONE)) {
4481 report("No file to diff");
4485 switch (line->type) {
4486 case LINE_STAT_STAGED:
4487 if (is_initial_commit()) {
4488 const char *no_head_diff_argv[] = {
4489 "git", "diff", "--no-color", "--patch-with-stat",
4490 "--", "/dev/null", newpath, NULL
4493 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4496 const char *index_show_argv[] = {
4497 "git", "diff-index", "--root", "--patch-with-stat",
4498 "-C", "-M", "--cached", "HEAD", "--",
4499 oldpath, newpath, NULL
4502 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4507 info = "Staged changes to %s";
4509 info = "Staged changes";
4512 case LINE_STAT_UNSTAGED:
4514 const char *files_show_argv[] = {
4515 "git", "diff-files", "--root", "--patch-with-stat",
4516 "-C", "-M", "--", oldpath, newpath, NULL
4519 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4522 info = "Unstaged changes to %s";
4524 info = "Unstaged changes";
4527 case LINE_STAT_UNTRACKED:
4529 report("No file to show");
4533 if (!suffixcmp(status->new.name, -1, "/")) {
4534 report("Cannot display a directory");
4538 if (!prepare_update_file(stage, newpath))
4540 info = "Untracked file %s";
4543 case LINE_STAT_HEAD:
4547 die("line type %d not handled in switch", line->type);
4550 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4551 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH | split);
4552 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4554 stage_status = *status;
4556 memset(&stage_status, 0, sizeof(stage_status));
4559 stage_line_type = line->type;
4561 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4568 status_exists(struct status *status, enum line_type type)
4570 struct view *view = VIEW(REQ_VIEW_STATUS);
4573 for (line = view->line; line < view->line + view->lines; line++) {
4574 struct status *pos = line->data;
4576 if (line->type != type)
4578 if (!pos && (!status || !status->status))
4580 if (pos && !strcmp(status->new.name, pos->new.name))
4589 status_update_prepare(struct io *io, enum line_type type)
4591 const char *staged_argv[] = {
4592 "git", "update-index", "-z", "--index-info", NULL
4594 const char *others_argv[] = {
4595 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4599 case LINE_STAT_STAGED:
4600 return run_io(io, staged_argv, opt_cdup, IO_WR);
4602 case LINE_STAT_UNSTAGED:
4603 return run_io(io, others_argv, opt_cdup, IO_WR);
4605 case LINE_STAT_UNTRACKED:
4606 return run_io(io, others_argv, NULL, IO_WR);
4609 die("line type %d not handled in switch", type);
4615 status_update_write(struct io *io, struct status *status, enum line_type type)
4617 char buf[SIZEOF_STR];
4621 case LINE_STAT_STAGED:
4622 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4625 status->old.name, 0))
4629 case LINE_STAT_UNSTAGED:
4630 case LINE_STAT_UNTRACKED:
4631 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4636 die("line type %d not handled in switch", type);
4639 return io_write(io, buf, bufsize);
4643 status_update_file(struct status *status, enum line_type type)
4648 if (!status_update_prepare(&io, type))
4651 result = status_update_write(&io, status, type);
4657 status_update_files(struct view *view, struct line *line)
4661 struct line *pos = view->line + view->lines;
4665 if (!status_update_prepare(&io, line->type))
4668 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4671 for (file = 0, done = 0; result && file < files; line++, file++) {
4672 int almost_done = file * 100 / files;
4674 if (almost_done > done) {
4676 string_format(view->ref, "updating file %u of %u (%d%% done)",
4678 update_view_title(view);
4680 result = status_update_write(&io, line->data, line->type);
4688 status_update(struct view *view)
4690 struct line *line = &view->line[view->lineno];
4692 assert(view->lines);
4695 /* This should work even for the "On branch" line. */
4696 if (line < view->line + view->lines && !line[1].data) {
4697 report("Nothing to update");
4701 if (!status_update_files(view, line + 1)) {
4702 report("Failed to update file status");
4706 } else if (!status_update_file(line->data, line->type)) {
4707 report("Failed to update file status");
4715 status_revert(struct status *status, enum line_type type, bool has_none)
4717 if (!status || type != LINE_STAT_UNSTAGED) {
4718 if (type == LINE_STAT_STAGED) {
4719 report("Cannot revert changes to staged files");
4720 } else if (type == LINE_STAT_UNTRACKED) {
4721 report("Cannot revert changes to untracked files");
4722 } else if (has_none) {
4723 report("Nothing to revert");
4725 report("Cannot revert changes to multiple files");
4730 const char *checkout_argv[] = {
4731 "git", "checkout", "--", status->old.name, NULL
4734 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
4736 return run_io_fg(checkout_argv, opt_cdup);
4741 status_request(struct view *view, enum request request, struct line *line)
4743 struct status *status = line->data;
4746 case REQ_STATUS_UPDATE:
4747 if (!status_update(view))
4751 case REQ_STATUS_REVERT:
4752 if (!status_revert(status, line->type, status_has_none(view, line)))
4756 case REQ_STATUS_MERGE:
4757 if (!status || status->status != 'U') {
4758 report("Merging only possible for files with unmerged status ('U').");
4761 open_mergetool(status->new.name);
4767 if (status->status == 'D') {
4768 report("File has been deleted.");
4772 open_editor(status->status != '?', status->new.name);
4775 case REQ_VIEW_BLAME:
4777 string_copy(opt_file, status->new.name);
4783 /* After returning the status view has been split to
4784 * show the stage view. No further reloading is
4786 status_enter(view, line);
4790 /* Simply reload the view. */
4797 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4803 status_select(struct view *view, struct line *line)
4805 struct status *status = line->data;
4806 char file[SIZEOF_STR] = "all files";
4810 if (status && !string_format(file, "'%s'", status->new.name))
4813 if (!status && line[1].type == LINE_STAT_NONE)
4816 switch (line->type) {
4817 case LINE_STAT_STAGED:
4818 text = "Press %s to unstage %s for commit";
4821 case LINE_STAT_UNSTAGED:
4822 text = "Press %s to stage %s for commit";
4825 case LINE_STAT_UNTRACKED:
4826 text = "Press %s to stage %s for addition";
4829 case LINE_STAT_HEAD:
4830 case LINE_STAT_NONE:
4831 text = "Nothing to update";
4835 die("line type %d not handled in switch", line->type);
4838 if (status && status->status == 'U') {
4839 text = "Press %s to resolve conflict in %s";
4840 key = get_key(REQ_STATUS_MERGE);
4843 key = get_key(REQ_STATUS_UPDATE);
4846 string_format(view->ref, text, key, file);
4850 status_grep(struct view *view, struct line *line)
4852 struct status *status = line->data;
4853 enum { S_STATUS, S_NAME, S_END } state;
4860 for (state = S_STATUS; state < S_END; state++) {
4864 case S_NAME: text = status->new.name; break;
4866 buf[0] = status->status;
4874 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4881 static struct view_ops status_ops = {
4894 stage_diff_write(struct io *io, struct line *line, struct line *end)
4896 while (line < end) {
4897 if (!io_write(io, line->data, strlen(line->data)) ||
4898 !io_write(io, "\n", 1))
4901 if (line->type == LINE_DIFF_CHUNK ||
4902 line->type == LINE_DIFF_HEADER)
4909 static struct line *
4910 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4912 for (; view->line < line; line--)
4913 if (line->type == type)
4920 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
4922 const char *apply_argv[SIZEOF_ARG] = {
4923 "git", "apply", "--whitespace=nowarn", NULL
4925 struct line *diff_hdr;
4929 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4934 apply_argv[argc++] = "--cached";
4935 if (revert || stage_line_type == LINE_STAT_STAGED)
4936 apply_argv[argc++] = "-R";
4937 apply_argv[argc++] = "-";
4938 apply_argv[argc++] = NULL;
4939 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
4942 if (!stage_diff_write(&io, diff_hdr, chunk) ||
4943 !stage_diff_write(&io, chunk, view->line + view->lines))
4947 run_io_bg(update_index_argv);
4949 return chunk ? TRUE : FALSE;
4953 stage_update(struct view *view, struct line *line)
4955 struct line *chunk = NULL;
4957 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
4958 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4961 if (!stage_apply_chunk(view, chunk, FALSE)) {
4962 report("Failed to apply chunk");
4966 } else if (!stage_status.status) {
4967 view = VIEW(REQ_VIEW_STATUS);
4969 for (line = view->line; line < view->line + view->lines; line++)
4970 if (line->type == stage_line_type)
4973 if (!status_update_files(view, line + 1)) {
4974 report("Failed to update files");
4978 } else if (!status_update_file(&stage_status, stage_line_type)) {
4979 report("Failed to update file");
4987 stage_revert(struct view *view, struct line *line)
4989 struct line *chunk = NULL;
4991 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
4992 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4995 if (!prompt_yesno("Are you sure you want to revert changes?"))
4998 if (!stage_apply_chunk(view, chunk, TRUE)) {
4999 report("Failed to revert chunk");
5005 return status_revert(stage_status.status ? &stage_status : NULL,
5006 stage_line_type, FALSE);
5012 stage_next(struct view *view, struct line *line)
5016 if (!stage_chunks) {
5017 static size_t alloc = 0;
5020 for (line = view->line; line < view->line + view->lines; line++) {
5021 if (line->type != LINE_DIFF_CHUNK)
5024 tmp = realloc_items(stage_chunk, &alloc,
5025 stage_chunks, sizeof(*tmp));
5027 report("Allocation failure");
5032 stage_chunk[stage_chunks++] = line - view->line;
5036 for (i = 0; i < stage_chunks; i++) {
5037 if (stage_chunk[i] > view->lineno) {
5038 do_scroll_view(view, stage_chunk[i] - view->lineno);
5039 report("Chunk %d of %d", i + 1, stage_chunks);
5044 report("No next chunk found");
5048 stage_request(struct view *view, enum request request, struct line *line)
5051 case REQ_STATUS_UPDATE:
5052 if (!stage_update(view, line))
5056 case REQ_STATUS_REVERT:
5057 if (!stage_revert(view, line))
5061 case REQ_STAGE_NEXT:
5062 if (stage_line_type == LINE_STAT_UNTRACKED) {
5063 report("File is untracked; press %s to add",
5064 get_key(REQ_STATUS_UPDATE));
5067 stage_next(view, line);
5071 if (!stage_status.new.name[0])
5073 if (stage_status.status == 'D') {
5074 report("File has been deleted.");
5078 open_editor(stage_status.status != '?', stage_status.new.name);
5082 /* Reload everything ... */
5085 case REQ_VIEW_BLAME:
5086 if (stage_status.new.name[0]) {
5087 string_copy(opt_file, stage_status.new.name);
5093 return pager_request(view, request, line);
5099 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5101 /* Check whether the staged entry still exists, and close the
5102 * stage view if it doesn't. */
5103 if (!status_exists(&stage_status, stage_line_type))
5104 return REQ_VIEW_CLOSE;
5106 if (stage_line_type == LINE_STAT_UNTRACKED) {
5107 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5108 report("Cannot display a directory");
5112 if (!prepare_update_file(view, stage_status.new.name)) {
5113 report("Failed to open file: %s", strerror(errno));
5117 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5122 static struct view_ops stage_ops = {
5139 char id[SIZEOF_REV]; /* SHA1 ID. */
5140 char title[128]; /* First line of the commit message. */
5141 char author[75]; /* Author of the commit. */
5142 struct tm time; /* Date from the author ident. */
5143 struct ref **refs; /* Repository references. */
5144 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5145 size_t graph_size; /* The width of the graph array. */
5146 bool has_parents; /* Rewritten --parents seen. */
5149 /* Size of rev graph with no "padding" columns */
5150 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5153 struct rev_graph *prev, *next, *parents;
5154 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5156 struct commit *commit;
5158 unsigned int boundary:1;
5161 /* Parents of the commit being visualized. */
5162 static struct rev_graph graph_parents[4];
5164 /* The current stack of revisions on the graph. */
5165 static struct rev_graph graph_stacks[4] = {
5166 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5167 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5168 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5169 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5173 graph_parent_is_merge(struct rev_graph *graph)
5175 return graph->parents->size > 1;
5179 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5181 struct commit *commit = graph->commit;
5183 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5184 commit->graph[commit->graph_size++] = symbol;
5188 clear_rev_graph(struct rev_graph *graph)
5190 graph->boundary = 0;
5191 graph->size = graph->pos = 0;
5192 graph->commit = NULL;
5193 memset(graph->parents, 0, sizeof(*graph->parents));
5197 done_rev_graph(struct rev_graph *graph)
5199 if (graph_parent_is_merge(graph) &&
5200 graph->pos < graph->size - 1 &&
5201 graph->next->size == graph->size + graph->parents->size - 1) {
5202 size_t i = graph->pos + graph->parents->size - 1;
5204 graph->commit->graph_size = i * 2;
5205 while (i < graph->next->size - 1) {
5206 append_to_rev_graph(graph, ' ');
5207 append_to_rev_graph(graph, '\\');
5212 clear_rev_graph(graph);
5216 push_rev_graph(struct rev_graph *graph, const char *parent)
5220 /* "Collapse" duplicate parents lines.
5222 * FIXME: This needs to also update update the drawn graph but
5223 * for now it just serves as a method for pruning graph lines. */
5224 for (i = 0; i < graph->size; i++)
5225 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5228 if (graph->size < SIZEOF_REVITEMS) {
5229 string_copy_rev(graph->rev[graph->size++], parent);
5234 get_rev_graph_symbol(struct rev_graph *graph)
5238 if (graph->boundary)
5239 symbol = REVGRAPH_BOUND;
5240 else if (graph->parents->size == 0)
5241 symbol = REVGRAPH_INIT;
5242 else if (graph_parent_is_merge(graph))
5243 symbol = REVGRAPH_MERGE;
5244 else if (graph->pos >= graph->size)
5245 symbol = REVGRAPH_BRANCH;
5247 symbol = REVGRAPH_COMMIT;
5253 draw_rev_graph(struct rev_graph *graph)
5256 chtype separator, line;
5258 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5259 static struct rev_filler fillers[] = {
5265 chtype symbol = get_rev_graph_symbol(graph);
5266 struct rev_filler *filler;
5269 if (opt_line_graphics)
5270 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5272 filler = &fillers[DEFAULT];
5274 for (i = 0; i < graph->pos; i++) {
5275 append_to_rev_graph(graph, filler->line);
5276 if (graph_parent_is_merge(graph->prev) &&
5277 graph->prev->pos == i)
5278 filler = &fillers[RSHARP];
5280 append_to_rev_graph(graph, filler->separator);
5283 /* Place the symbol for this revision. */
5284 append_to_rev_graph(graph, symbol);
5286 if (graph->prev->size > graph->size)
5287 filler = &fillers[RDIAG];
5289 filler = &fillers[DEFAULT];
5293 for (; i < graph->size; i++) {
5294 append_to_rev_graph(graph, filler->separator);
5295 append_to_rev_graph(graph, filler->line);
5296 if (graph_parent_is_merge(graph->prev) &&
5297 i < graph->prev->pos + graph->parents->size)
5298 filler = &fillers[RSHARP];
5299 if (graph->prev->size > graph->size)
5300 filler = &fillers[LDIAG];
5303 if (graph->prev->size > graph->size) {
5304 append_to_rev_graph(graph, filler->separator);
5305 if (filler->line != ' ')
5306 append_to_rev_graph(graph, filler->line);
5310 /* Prepare the next rev graph */
5312 prepare_rev_graph(struct rev_graph *graph)
5316 /* First, traverse all lines of revisions up to the active one. */
5317 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5318 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5321 push_rev_graph(graph->next, graph->rev[graph->pos]);
5324 /* Interleave the new revision parent(s). */
5325 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5326 push_rev_graph(graph->next, graph->parents->rev[i]);
5328 /* Lastly, put any remaining revisions. */
5329 for (i = graph->pos + 1; i < graph->size; i++)
5330 push_rev_graph(graph->next, graph->rev[i]);
5334 update_rev_graph(struct view *view, struct rev_graph *graph)
5336 /* If this is the finalizing update ... */
5338 prepare_rev_graph(graph);
5340 /* Graph visualization needs a one rev look-ahead,
5341 * so the first update doesn't visualize anything. */
5342 if (!graph->prev->commit)
5345 if (view->lines > 2)
5346 view->line[view->lines - 3].dirty = 1;
5347 if (view->lines > 1)
5348 view->line[view->lines - 2].dirty = 1;
5349 draw_rev_graph(graph->prev);
5350 done_rev_graph(graph->prev->prev);
5358 static const char *main_argv[SIZEOF_ARG] = {
5359 "git", "log", "--no-color", "--pretty=raw", "--parents",
5360 "--topo-order", "%(head)", NULL
5364 main_draw(struct view *view, struct line *line, unsigned int lineno)
5366 struct commit *commit = line->data;
5368 if (!*commit->author)
5371 if (opt_date && draw_date(view, &commit->time))
5375 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5378 if (opt_rev_graph && commit->graph_size &&
5379 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5382 if (opt_show_refs && commit->refs) {
5386 enum line_type type;
5388 if (commit->refs[i]->head)
5389 type = LINE_MAIN_HEAD;
5390 else if (commit->refs[i]->ltag)
5391 type = LINE_MAIN_LOCAL_TAG;
5392 else if (commit->refs[i]->tag)
5393 type = LINE_MAIN_TAG;
5394 else if (commit->refs[i]->tracked)
5395 type = LINE_MAIN_TRACKED;
5396 else if (commit->refs[i]->remote)
5397 type = LINE_MAIN_REMOTE;
5399 type = LINE_MAIN_REF;
5401 if (draw_text(view, type, "[", TRUE) ||
5402 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5403 draw_text(view, type, "]", TRUE))
5406 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5408 } while (commit->refs[i++]->next);
5411 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5415 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5417 main_read(struct view *view, char *line)
5419 static struct rev_graph *graph = graph_stacks;
5420 enum line_type type;
5421 struct commit *commit;
5426 if (!view->lines && !view->parent)
5427 die("No revisions match the given arguments.");
5428 if (view->lines > 0) {
5429 commit = view->line[view->lines - 1].data;
5430 view->line[view->lines - 1].dirty = 1;
5431 if (!*commit->author) {
5434 graph->commit = NULL;
5437 update_rev_graph(view, graph);
5439 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5440 clear_rev_graph(&graph_stacks[i]);
5444 type = get_line_type(line);
5445 if (type == LINE_COMMIT) {
5446 commit = calloc(1, sizeof(struct commit));
5450 line += STRING_SIZE("commit ");
5452 graph->boundary = 1;
5456 string_copy_rev(commit->id, line);
5457 commit->refs = get_refs(commit->id);
5458 graph->commit = commit;
5459 add_line_data(view, commit, LINE_MAIN_COMMIT);
5461 while ((line = strchr(line, ' '))) {
5463 push_rev_graph(graph->parents, line);
5464 commit->has_parents = TRUE;
5471 commit = view->line[view->lines - 1].data;
5475 if (commit->has_parents)
5477 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5482 /* Parse author lines where the name may be empty:
5483 * author <email@address.tld> 1138474660 +0100
5485 char *ident = line + STRING_SIZE("author ");
5486 char *nameend = strchr(ident, '<');
5487 char *emailend = strchr(ident, '>');
5489 if (!nameend || !emailend)
5492 update_rev_graph(view, graph);
5493 graph = graph->next;
5495 *nameend = *emailend = 0;
5496 ident = chomp_string(ident);
5498 ident = chomp_string(nameend + 1);
5503 string_ncopy(commit->author, ident, strlen(ident));
5504 view->line[view->lines - 1].dirty = 1;
5506 /* Parse epoch and timezone */
5507 if (emailend[1] == ' ') {
5508 char *secs = emailend + 2;
5509 char *zone = strchr(secs, ' ');
5510 time_t time = (time_t) atol(secs);
5512 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5516 tz = ('0' - zone[1]) * 60 * 60 * 10;
5517 tz += ('0' - zone[2]) * 60 * 60;
5518 tz += ('0' - zone[3]) * 60;
5519 tz += ('0' - zone[4]) * 60;
5527 gmtime_r(&time, &commit->time);
5532 /* Fill in the commit title if it has not already been set. */
5533 if (commit->title[0])
5536 /* Require titles to start with a non-space character at the
5537 * offset used by git log. */
5538 if (strncmp(line, " ", 4))
5541 /* Well, if the title starts with a whitespace character,
5542 * try to be forgiving. Otherwise we end up with no title. */
5543 while (isspace(*line))
5547 /* FIXME: More graceful handling of titles; append "..." to
5548 * shortened titles, etc. */
5550 string_ncopy(commit->title, line, strlen(line));
5551 view->line[view->lines - 1].dirty = 1;
5558 main_request(struct view *view, enum request request, struct line *line)
5560 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5564 open_view(view, REQ_VIEW_DIFF, flags);
5568 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5578 grep_refs(struct ref **refs, regex_t *regex)
5586 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5588 } while (refs[i++]->next);
5594 main_grep(struct view *view, struct line *line)
5596 struct commit *commit = line->data;
5597 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5598 char buf[DATE_COLS + 1];
5601 for (state = S_TITLE; state < S_END; state++) {
5605 case S_TITLE: text = commit->title; break;
5609 text = commit->author;
5614 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5621 if (grep_refs(commit->refs, view->regex) == TRUE)
5628 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5636 main_select(struct view *view, struct line *line)
5638 struct commit *commit = line->data;
5640 string_copy_rev(view->ref, commit->id);
5641 string_copy_rev(ref_commit, view->ref);
5644 static struct view_ops main_ops = {
5657 * Unicode / UTF-8 handling
5659 * NOTE: Much of the following code for dealing with unicode is derived from
5660 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5661 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5664 /* I've (over)annotated a lot of code snippets because I am not entirely
5665 * confident that the approach taken by this small UTF-8 interface is correct.
5669 unicode_width(unsigned long c)
5672 (c <= 0x115f /* Hangul Jamo */
5675 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5677 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5678 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5679 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5680 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5681 || (c >= 0xffe0 && c <= 0xffe6)
5682 || (c >= 0x20000 && c <= 0x2fffd)
5683 || (c >= 0x30000 && c <= 0x3fffd)))
5687 return opt_tab_size;
5692 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5693 * Illegal bytes are set one. */
5694 static const unsigned char utf8_bytes[256] = {
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 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,
5700 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,
5701 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,
5702 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,
5705 /* Decode UTF-8 multi-byte representation into a unicode character. */
5706 static inline unsigned long
5707 utf8_to_unicode(const char *string, size_t length)
5709 unsigned long unicode;
5713 unicode = string[0];
5716 unicode = (string[0] & 0x1f) << 6;
5717 unicode += (string[1] & 0x3f);
5720 unicode = (string[0] & 0x0f) << 12;
5721 unicode += ((string[1] & 0x3f) << 6);
5722 unicode += (string[2] & 0x3f);
5725 unicode = (string[0] & 0x0f) << 18;
5726 unicode += ((string[1] & 0x3f) << 12);
5727 unicode += ((string[2] & 0x3f) << 6);
5728 unicode += (string[3] & 0x3f);
5731 unicode = (string[0] & 0x0f) << 24;
5732 unicode += ((string[1] & 0x3f) << 18);
5733 unicode += ((string[2] & 0x3f) << 12);
5734 unicode += ((string[3] & 0x3f) << 6);
5735 unicode += (string[4] & 0x3f);
5738 unicode = (string[0] & 0x01) << 30;
5739 unicode += ((string[1] & 0x3f) << 24);
5740 unicode += ((string[2] & 0x3f) << 18);
5741 unicode += ((string[3] & 0x3f) << 12);
5742 unicode += ((string[4] & 0x3f) << 6);
5743 unicode += (string[5] & 0x3f);
5746 die("Invalid unicode length");
5749 /* Invalid characters could return the special 0xfffd value but NUL
5750 * should be just as good. */
5751 return unicode > 0xffff ? 0 : unicode;
5754 /* Calculates how much of string can be shown within the given maximum width
5755 * and sets trimmed parameter to non-zero value if all of string could not be
5756 * shown. If the reserve flag is TRUE, it will reserve at least one
5757 * trailing character, which can be useful when drawing a delimiter.
5759 * Returns the number of bytes to output from string to satisfy max_width. */
5761 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5763 const char *start = string;
5764 const char *end = strchr(string, '\0');
5765 unsigned char last_bytes = 0;
5766 size_t last_ucwidth = 0;
5771 while (string < end) {
5772 int c = *(unsigned char *) string;
5773 unsigned char bytes = utf8_bytes[c];
5775 unsigned long unicode;
5777 if (string + bytes > end)
5780 /* Change representation to figure out whether
5781 * it is a single- or double-width character. */
5783 unicode = utf8_to_unicode(string, bytes);
5784 /* FIXME: Graceful handling of invalid unicode character. */
5788 ucwidth = unicode_width(unicode);
5790 if (*width > max_width) {
5793 if (reserve && *width == max_width) {
5794 string -= last_bytes;
5795 *width -= last_ucwidth;
5802 last_ucwidth = ucwidth;
5805 return string - start;
5813 /* Whether or not the curses interface has been initialized. */
5814 static bool cursed = FALSE;
5816 /* The status window is used for polling keystrokes. */
5817 static WINDOW *status_win;
5819 static bool status_empty = TRUE;
5821 /* Update status and title window. */
5823 report(const char *msg, ...)
5825 struct view *view = display[current_view];
5831 char buf[SIZEOF_STR];
5834 va_start(args, msg);
5835 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5836 buf[sizeof(buf) - 1] = 0;
5837 buf[sizeof(buf) - 2] = '.';
5838 buf[sizeof(buf) - 3] = '.';
5839 buf[sizeof(buf) - 4] = '.';
5845 if (!status_empty || *msg) {
5848 va_start(args, msg);
5850 wmove(status_win, 0, 0);
5852 vwprintw(status_win, msg, args);
5853 status_empty = FALSE;
5855 status_empty = TRUE;
5857 wclrtoeol(status_win);
5858 wrefresh(status_win);
5863 update_view_title(view);
5864 update_display_cursor(view);
5867 /* Controls when nodelay should be in effect when polling user input. */
5869 set_nonblocking_input(bool loading)
5871 static unsigned int loading_views;
5873 if ((loading == FALSE && loading_views-- == 1) ||
5874 (loading == TRUE && loading_views++ == 0))
5875 nodelay(status_win, loading);
5883 /* Initialize the curses library */
5884 if (isatty(STDIN_FILENO)) {
5885 cursed = !!initscr();
5888 /* Leave stdin and stdout alone when acting as a pager. */
5889 opt_tty = fopen("/dev/tty", "r+");
5891 die("Failed to open /dev/tty");
5892 cursed = !!newterm(NULL, opt_tty, opt_tty);
5896 die("Failed to initialize curses");
5898 nonl(); /* Tell curses not to do NL->CR/NL on output */
5899 cbreak(); /* Take input chars one at a time, no wait for \n */
5900 noecho(); /* Don't echo input */
5901 leaveok(stdscr, TRUE);
5906 getmaxyx(stdscr, y, x);
5907 status_win = newwin(1, 0, y - 1, 0);
5909 die("Failed to create status window");
5911 /* Enable keyboard mapping */
5912 keypad(status_win, TRUE);
5913 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5915 TABSIZE = opt_tab_size;
5916 if (opt_line_graphics) {
5917 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5922 get_input(bool prompting)
5931 foreach_view (view, i)
5934 /* Refresh, accept single keystroke of input */
5935 key = wgetch(status_win);
5937 /* wgetch() with nodelay() enabled returns ERR when
5938 * there's no input. */
5942 } else if (key == KEY_RESIZE) {
5945 getmaxyx(stdscr, height, width);
5947 /* Resize the status view and let the view driver take
5948 * care of resizing the displayed views. */
5950 redraw_display(TRUE);
5951 wresize(status_win, 1, width);
5952 mvwin(status_win, height - 1, 0);
5953 wrefresh(status_win);
5963 prompt_yesno(const char *prompt)
5965 enum { WAIT, STOP, CANCEL } status = WAIT;
5966 bool answer = FALSE;
5968 while (status == WAIT) {
5971 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
5972 wclrtoeol(status_win);
5974 key = get_input(TRUE);
5995 /* Clear the status window */
5996 status_empty = FALSE;
6003 read_prompt(const char *prompt)
6005 enum { READING, STOP, CANCEL } status = READING;
6006 static char buf[SIZEOF_STR];
6009 while (status == READING) {
6012 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6013 wclrtoeol(status_win);
6015 key = get_input(TRUE);
6020 status = pos ? STOP : CANCEL;
6035 if (pos >= sizeof(buf)) {
6036 report("Input string too long");
6041 buf[pos++] = (char) key;
6045 /* Clear the status window */
6046 status_empty = FALSE;
6049 if (status == CANCEL)
6058 * Repository properties
6062 git_properties(const char **argv, const char *separators,
6063 int (*read_property)(char *, size_t, char *, size_t))
6067 if (init_io_rd(&io, argv, NULL, FORMAT_NONE))
6068 return read_properties(&io, separators, read_property);
6072 static struct ref *refs = NULL;
6073 static size_t refs_alloc = 0;
6074 static size_t refs_size = 0;
6076 /* Id <-> ref store */
6077 static struct ref ***id_refs = NULL;
6078 static size_t id_refs_alloc = 0;
6079 static size_t id_refs_size = 0;
6082 compare_refs(const void *ref1_, const void *ref2_)
6084 const struct ref *ref1 = *(const struct ref **)ref1_;
6085 const struct ref *ref2 = *(const struct ref **)ref2_;
6087 if (ref1->tag != ref2->tag)
6088 return ref2->tag - ref1->tag;
6089 if (ref1->ltag != ref2->ltag)
6090 return ref2->ltag - ref2->ltag;
6091 if (ref1->head != ref2->head)
6092 return ref2->head - ref1->head;
6093 if (ref1->tracked != ref2->tracked)
6094 return ref2->tracked - ref1->tracked;
6095 if (ref1->remote != ref2->remote)
6096 return ref2->remote - ref1->remote;
6097 return strcmp(ref1->name, ref2->name);
6100 static struct ref **
6101 get_refs(const char *id)
6103 struct ref ***tmp_id_refs;
6104 struct ref **ref_list = NULL;
6105 size_t ref_list_alloc = 0;
6106 size_t ref_list_size = 0;
6109 for (i = 0; i < id_refs_size; i++)
6110 if (!strcmp(id, id_refs[i][0]->id))
6113 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6118 id_refs = tmp_id_refs;
6120 for (i = 0; i < refs_size; i++) {
6123 if (strcmp(id, refs[i].id))
6126 tmp = realloc_items(ref_list, &ref_list_alloc,
6127 ref_list_size + 1, sizeof(*ref_list));
6135 ref_list[ref_list_size] = &refs[i];
6136 /* XXX: The properties of the commit chains ensures that we can
6137 * safely modify the shared ref. The repo references will
6138 * always be similar for the same id. */
6139 ref_list[ref_list_size]->next = 1;
6145 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6146 ref_list[ref_list_size - 1]->next = 0;
6147 id_refs[id_refs_size++] = ref_list;
6154 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6159 bool remote = FALSE;
6160 bool tracked = FALSE;
6161 bool check_replace = FALSE;
6164 if (!prefixcmp(name, "refs/tags/")) {
6165 if (!suffixcmp(name, namelen, "^{}")) {
6168 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6169 check_replace = TRUE;
6175 namelen -= STRING_SIZE("refs/tags/");
6176 name += STRING_SIZE("refs/tags/");
6178 } else if (!prefixcmp(name, "refs/remotes/")) {
6180 namelen -= STRING_SIZE("refs/remotes/");
6181 name += STRING_SIZE("refs/remotes/");
6182 tracked = !strcmp(opt_remote, name);
6184 } else if (!prefixcmp(name, "refs/heads/")) {
6185 namelen -= STRING_SIZE("refs/heads/");
6186 name += STRING_SIZE("refs/heads/");
6187 head = !strncmp(opt_head, name, namelen);
6189 } else if (!strcmp(name, "HEAD")) {
6190 string_ncopy(opt_head_rev, id, idlen);
6194 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6195 /* it's an annotated tag, replace the previous sha1 with the
6196 * resolved commit id; relies on the fact git-ls-remote lists
6197 * the commit id of an annotated tag right before the commit id
6199 refs[refs_size - 1].ltag = ltag;
6200 string_copy_rev(refs[refs_size - 1].id, id);
6204 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6208 ref = &refs[refs_size++];
6209 ref->name = malloc(namelen + 1);
6213 strncpy(ref->name, name, namelen);
6214 ref->name[namelen] = 0;
6218 ref->remote = remote;
6219 ref->tracked = tracked;
6220 string_copy_rev(ref->id, id);
6228 static const char *ls_remote_argv[SIZEOF_ARG] = {
6229 "git", "ls-remote", ".", NULL
6231 static bool init = FALSE;
6234 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6241 while (refs_size > 0)
6242 free(refs[--refs_size].name);
6243 while (id_refs_size > 0)
6244 free(id_refs[--id_refs_size]);
6246 return git_properties(ls_remote_argv, "\t", read_ref);
6250 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6252 if (!strcmp(name, "i18n.commitencoding"))
6253 string_ncopy(opt_encoding, value, valuelen);
6255 if (!strcmp(name, "core.editor"))
6256 string_ncopy(opt_editor, value, valuelen);
6258 /* branch.<head>.remote */
6260 !strncmp(name, "branch.", 7) &&
6261 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6262 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6263 string_ncopy(opt_remote, value, valuelen);
6265 if (*opt_head && *opt_remote &&
6266 !strncmp(name, "branch.", 7) &&
6267 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6268 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6269 size_t from = strlen(opt_remote);
6271 if (!prefixcmp(value, "refs/heads/")) {
6272 value += STRING_SIZE("refs/heads/");
6273 valuelen -= STRING_SIZE("refs/heads/");
6276 if (!string_format_from(opt_remote, &from, "/%s", value))
6284 load_git_config(void)
6286 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6288 return git_properties(config_list_argv, "=", read_repo_config_option);
6292 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6294 if (!opt_git_dir[0]) {
6295 string_ncopy(opt_git_dir, name, namelen);
6297 } else if (opt_is_inside_work_tree == -1) {
6298 /* This can be 3 different values depending on the
6299 * version of git being used. If git-rev-parse does not
6300 * understand --is-inside-work-tree it will simply echo
6301 * the option else either "true" or "false" is printed.
6302 * Default to true for the unknown case. */
6303 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6305 string_ncopy(opt_cdup, name, namelen);
6312 load_repo_info(void)
6314 const char *head_argv[] = {
6315 "git", "symbolic-ref", "HEAD", NULL
6317 const char *rev_parse_argv[] = {
6318 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6322 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6323 chomp_string(opt_head);
6324 if (!prefixcmp(opt_head, "refs/heads/")) {
6325 char *offset = opt_head + STRING_SIZE("refs/heads/");
6327 memmove(opt_head, offset, strlen(offset) + 1);
6331 return git_properties(rev_parse_argv, "=", read_repo_info);
6335 read_properties(struct io *io, const char *separators,
6336 int (*read_property)(char *, size_t, char *, size_t))
6344 while (state == OK && (name = io_get(io, '\n', TRUE))) {
6349 name = chomp_string(name);
6350 namelen = strcspn(name, separators);
6352 if (name[namelen]) {
6354 value = chomp_string(name + namelen + 1);
6355 valuelen = strlen(value);
6362 state = read_property(name, namelen, value, valuelen);
6365 if (state != ERR && io_error(io))
6377 static void __NORETURN
6380 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6386 static void __NORETURN
6387 die(const char *err, ...)
6393 va_start(args, err);
6394 fputs("tig: ", stderr);
6395 vfprintf(stderr, err, args);
6396 fputs("\n", stderr);
6403 warn(const char *msg, ...)
6407 va_start(args, msg);
6408 fputs("tig warning: ", stderr);
6409 vfprintf(stderr, msg, args);
6410 fputs("\n", stderr);
6415 main(int argc, const char *argv[])
6417 const char **run_argv = NULL;
6419 enum request request;
6422 signal(SIGINT, quit);
6424 if (setlocale(LC_ALL, "")) {
6425 char *codeset = nl_langinfo(CODESET);
6427 string_ncopy(opt_codeset, codeset, strlen(codeset));
6430 if (load_repo_info() == ERR)
6431 die("Failed to load repo info.");
6433 if (load_options() == ERR)
6434 die("Failed to load user config.");
6436 if (load_git_config() == ERR)
6437 die("Failed to load repo config.");
6439 request = parse_options(argc, argv, &run_argv);
6440 if (request == REQ_NONE)
6443 /* Require a git repository unless when running in pager mode. */
6444 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6445 die("Not a git repository");
6447 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6450 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6451 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6452 if (opt_iconv == ICONV_NONE)
6453 die("Failed to initialize character set conversion");
6456 if (load_refs() == ERR)
6457 die("Failed to load refs.");
6459 foreach_view (view, i)
6460 argv_from_env(view->ops->argv, view->cmd_env);
6464 if (request == REQ_VIEW_PAGER || run_argv) {
6465 if (request == REQ_VIEW_PAGER)
6466 io_open(&VIEW(request)->io, "");
6467 else if (!prepare_update(VIEW(request), run_argv, NULL, FORMAT_NONE))
6468 die("Failed to format arguments");
6469 open_view(NULL, request, OPEN_PREPARED);
6473 while (view_driver(display[current_view], request)) {
6474 int key = get_input(FALSE);
6476 view = display[current_view];
6477 request = get_keybinding(view->keymap, key);
6479 /* Some low-level request handling. This keeps access to
6480 * status_win restricted. */
6484 char *cmd = read_prompt(":");
6487 struct view *next = VIEW(REQ_VIEW_PAGER);
6488 const char *argv[SIZEOF_ARG] = { "git" };
6491 /* When running random commands, initially show the
6492 * command in the title. However, it maybe later be
6493 * overwritten if a commit line is selected. */
6494 string_ncopy(next->ref, cmd, strlen(cmd));
6496 if (!argv_from_string(argv, &argc, cmd)) {
6497 report("Too many arguments");
6498 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6499 report("Failed to format command");
6501 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6509 case REQ_SEARCH_BACK:
6511 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6512 char *search = read_prompt(prompt);
6515 string_ncopy(opt_search, search, strlen(search));