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 io->pid == 0 || 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 */
1728 unsigned long p_offset; /* Previous offset of the window top */
1729 unsigned long p_lineno; /* Previous current line number */
1730 bool p_restore; /* Should the previous position be restored. */
1733 char grep[SIZEOF_STR]; /* Search string */
1734 regex_t *regex; /* Pre-compiled regex */
1736 /* If non-NULL, points to the view that opened this view. If this view
1737 * is closed tig will switch back to the parent view. */
1738 struct view *parent;
1741 size_t lines; /* Total number of lines */
1742 struct line *line; /* Line index */
1743 size_t line_alloc; /* Total number of allocated lines */
1744 unsigned int digits; /* Number of digits in the lines member. */
1747 struct line *curline; /* Line currently being drawn. */
1748 enum line_type curtype; /* Attribute currently used for drawing. */
1749 unsigned long col; /* Column when drawing. */
1759 /* What type of content being displayed. Used in the title bar. */
1761 /* Default command arguments. */
1763 /* Open and reads in all view content. */
1764 bool (*open)(struct view *view);
1765 /* Read one line; updates view->line. */
1766 bool (*read)(struct view *view, char *data);
1767 /* Draw one line; @lineno must be < view->height. */
1768 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1769 /* Depending on view handle a special requests. */
1770 enum request (*request)(struct view *view, enum request request, struct line *line);
1771 /* Search for regex in a line. */
1772 bool (*grep)(struct view *view, struct line *line);
1774 void (*select)(struct view *view, struct line *line);
1777 static struct view_ops blame_ops;
1778 static struct view_ops blob_ops;
1779 static struct view_ops diff_ops;
1780 static struct view_ops help_ops;
1781 static struct view_ops log_ops;
1782 static struct view_ops main_ops;
1783 static struct view_ops pager_ops;
1784 static struct view_ops stage_ops;
1785 static struct view_ops status_ops;
1786 static struct view_ops tree_ops;
1788 #define VIEW_STR(name, env, ref, ops, map, git) \
1789 { name, #env, ref, ops, map, git }
1791 #define VIEW_(id, name, ops, git, ref) \
1792 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1795 static struct view views[] = {
1796 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1797 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1798 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1799 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1800 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1801 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1802 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1803 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1804 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1805 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1808 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1809 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1811 #define foreach_view(view, i) \
1812 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1814 #define view_is_displayed(view) \
1815 (view == display[0] || view == display[1])
1822 static int line_graphics[] = {
1823 /* LINE_GRAPHIC_VLINE: */ '|'
1827 set_view_attr(struct view *view, enum line_type type)
1829 if (!view->curline->selected && view->curtype != type) {
1830 wattrset(view->win, get_line_attr(type));
1831 wchgat(view->win, -1, 0, type, NULL);
1832 view->curtype = type;
1837 draw_chars(struct view *view, enum line_type type, const char *string,
1838 int max_len, bool use_tilde)
1842 int trimmed = FALSE;
1848 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1850 col = len = strlen(string);
1851 if (len > max_len) {
1855 col = len = max_len;
1860 set_view_attr(view, type);
1861 waddnstr(view->win, string, len);
1862 if (trimmed && use_tilde) {
1863 set_view_attr(view, LINE_DELIMITER);
1864 waddch(view->win, '~');
1872 draw_space(struct view *view, enum line_type type, int max, int spaces)
1874 static char space[] = " ";
1877 spaces = MIN(max, spaces);
1879 while (spaces > 0) {
1880 int len = MIN(spaces, sizeof(space) - 1);
1882 col += draw_chars(view, type, space, spaces, FALSE);
1890 draw_lineno(struct view *view, unsigned int lineno)
1893 int digits3 = view->digits < 3 ? 3 : view->digits;
1894 int max_number = MIN(digits3, STRING_SIZE(number));
1895 int max = view->width - view->col;
1898 if (max < max_number)
1901 lineno += view->offset + 1;
1902 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1903 static char fmt[] = "%1ld";
1905 if (view->digits <= 9)
1906 fmt[1] = '0' + digits3;
1908 if (!string_format(number, fmt, lineno))
1910 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1912 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1916 set_view_attr(view, LINE_DEFAULT);
1917 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1922 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1925 return view->width - view->col <= 0;
1929 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1931 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1932 return view->width - view->col <= 0;
1936 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1938 int max = view->width - view->col;
1944 set_view_attr(view, type);
1945 /* Using waddch() instead of waddnstr() ensures that
1946 * they'll be rendered correctly for the cursor line. */
1947 for (i = 0; i < size; i++)
1948 waddch(view->win, graphic[i]);
1952 waddch(view->win, ' ');
1956 return view->width - view->col <= 0;
1960 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1962 int max = MIN(view->width - view->col, len);
1966 col = draw_chars(view, type, text, max - 1, trim);
1968 col = draw_space(view, type, max - 1, max - 1);
1970 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1971 return view->width - view->col <= 0;
1975 draw_date(struct view *view, struct tm *time)
1977 char buf[DATE_COLS];
1982 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1983 date = timelen ? buf : NULL;
1985 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1989 draw_view_line(struct view *view, unsigned int lineno)
1992 bool selected = (view->offset + lineno == view->lineno);
1995 assert(view_is_displayed(view));
1997 if (view->offset + lineno >= view->lines)
2000 line = &view->line[view->offset + lineno];
2002 wmove(view->win, lineno, 0);
2004 wclrtoeol(view->win);
2006 view->curline = line;
2007 view->curtype = LINE_NONE;
2008 line->selected = FALSE;
2009 line->dirty = line->cleareol = 0;
2012 set_view_attr(view, LINE_CURSOR);
2013 line->selected = TRUE;
2014 view->ops->select(view, line);
2017 scrollok(view->win, FALSE);
2018 draw_ok = view->ops->draw(view, line, lineno);
2019 scrollok(view->win, TRUE);
2025 redraw_view_dirty(struct view *view)
2030 for (lineno = 0; lineno < view->height; lineno++) {
2031 if (view->offset + lineno >= view->lines)
2033 if (!view->line[view->offset + lineno].dirty)
2036 if (!draw_view_line(view, lineno))
2042 redrawwin(view->win);
2044 wnoutrefresh(view->win);
2046 wrefresh(view->win);
2050 redraw_view_from(struct view *view, int lineno)
2052 assert(0 <= lineno && lineno < view->height);
2054 for (; lineno < view->height; lineno++) {
2055 if (!draw_view_line(view, lineno))
2059 redrawwin(view->win);
2061 wnoutrefresh(view->win);
2063 wrefresh(view->win);
2067 redraw_view(struct view *view)
2070 redraw_view_from(view, 0);
2075 update_view_title(struct view *view)
2077 char buf[SIZEOF_STR];
2078 char state[SIZEOF_STR];
2079 size_t bufpos = 0, statelen = 0;
2081 assert(view_is_displayed(view));
2083 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2084 unsigned int view_lines = view->offset + view->height;
2085 unsigned int lines = view->lines
2086 ? MIN(view_lines, view->lines) * 100 / view->lines
2089 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2098 time_t secs = time(NULL) - view->start_time;
2100 /* Three git seconds are a long time ... */
2102 string_format_from(state, &statelen, " loading %lds", secs);
2105 string_format_from(buf, &bufpos, "[%s]", view->name);
2106 if (*view->ref && bufpos < view->width) {
2107 size_t refsize = strlen(view->ref);
2108 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2110 if (minsize < view->width)
2111 refsize = view->width - minsize + 7;
2112 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2115 if (statelen && bufpos < view->width) {
2116 string_format_from(buf, &bufpos, "%s", state);
2119 if (view == display[current_view])
2120 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2122 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2124 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2125 wclrtoeol(view->title);
2126 wmove(view->title, 0, view->width - 1);
2129 wnoutrefresh(view->title);
2131 wrefresh(view->title);
2135 resize_display(void)
2138 struct view *base = display[0];
2139 struct view *view = display[1] ? display[1] : display[0];
2141 /* Setup window dimensions */
2143 getmaxyx(stdscr, base->height, base->width);
2145 /* Make room for the status window. */
2149 /* Horizontal split. */
2150 view->width = base->width;
2151 view->height = SCALE_SPLIT_VIEW(base->height);
2152 base->height -= view->height;
2154 /* Make room for the title bar. */
2158 /* Make room for the title bar. */
2163 foreach_displayed_view (view, i) {
2165 view->win = newwin(view->height, 0, offset, 0);
2167 die("Failed to create %s view", view->name);
2169 scrollok(view->win, TRUE);
2171 view->title = newwin(1, 0, offset + view->height, 0);
2173 die("Failed to create title window");
2176 wresize(view->win, view->height, view->width);
2177 mvwin(view->win, offset, 0);
2178 mvwin(view->title, offset + view->height, 0);
2181 offset += view->height + 1;
2186 redraw_display(bool clear)
2191 foreach_displayed_view (view, i) {
2195 update_view_title(view);
2200 update_display_cursor(struct view *view)
2202 /* Move the cursor to the right-most column of the cursor line.
2204 * XXX: This could turn out to be a bit expensive, but it ensures that
2205 * the cursor does not jump around. */
2207 wmove(view->win, view->lineno - view->offset, view->width - 1);
2208 wrefresh(view->win);
2213 toggle_view_option(bool *option, const char *help)
2216 redraw_display(FALSE);
2217 report("%sabling %s", *option ? "En" : "Dis", help);
2224 /* Scrolling backend */
2226 do_scroll_view(struct view *view, int lines)
2228 bool redraw_current_line = FALSE;
2230 /* The rendering expects the new offset. */
2231 view->offset += lines;
2233 assert(0 <= view->offset && view->offset < view->lines);
2236 /* Move current line into the view. */
2237 if (view->lineno < view->offset) {
2238 view->lineno = view->offset;
2239 redraw_current_line = TRUE;
2240 } else if (view->lineno >= view->offset + view->height) {
2241 view->lineno = view->offset + view->height - 1;
2242 redraw_current_line = TRUE;
2245 assert(view->offset <= view->lineno && view->lineno < view->lines);
2247 /* Redraw the whole screen if scrolling is pointless. */
2248 if (view->height < ABS(lines)) {
2252 int line = lines > 0 ? view->height - lines : 0;
2253 int end = line + ABS(lines);
2255 wscrl(view->win, lines);
2257 for (; line < end; line++) {
2258 if (!draw_view_line(view, line))
2262 if (redraw_current_line)
2263 draw_view_line(view, view->lineno - view->offset);
2266 redrawwin(view->win);
2267 wrefresh(view->win);
2271 /* Scroll frontend */
2273 scroll_view(struct view *view, enum request request)
2277 assert(view_is_displayed(view));
2280 case REQ_SCROLL_PAGE_DOWN:
2281 lines = view->height;
2282 case REQ_SCROLL_LINE_DOWN:
2283 if (view->offset + lines > view->lines)
2284 lines = view->lines - view->offset;
2286 if (lines == 0 || view->offset + view->height >= view->lines) {
2287 report("Cannot scroll beyond the last line");
2292 case REQ_SCROLL_PAGE_UP:
2293 lines = view->height;
2294 case REQ_SCROLL_LINE_UP:
2295 if (lines > view->offset)
2296 lines = view->offset;
2299 report("Cannot scroll beyond the first line");
2307 die("request %d not handled in switch", request);
2310 do_scroll_view(view, lines);
2315 move_view(struct view *view, enum request request)
2317 int scroll_steps = 0;
2321 case REQ_MOVE_FIRST_LINE:
2322 steps = -view->lineno;
2325 case REQ_MOVE_LAST_LINE:
2326 steps = view->lines - view->lineno - 1;
2329 case REQ_MOVE_PAGE_UP:
2330 steps = view->height > view->lineno
2331 ? -view->lineno : -view->height;
2334 case REQ_MOVE_PAGE_DOWN:
2335 steps = view->lineno + view->height >= view->lines
2336 ? view->lines - view->lineno - 1 : view->height;
2348 die("request %d not handled in switch", request);
2351 if (steps <= 0 && view->lineno == 0) {
2352 report("Cannot move beyond the first line");
2355 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2356 report("Cannot move beyond the last line");
2360 /* Move the current line */
2361 view->lineno += steps;
2362 assert(0 <= view->lineno && view->lineno < view->lines);
2364 /* Check whether the view needs to be scrolled */
2365 if (view->lineno < view->offset ||
2366 view->lineno >= view->offset + view->height) {
2367 scroll_steps = steps;
2368 if (steps < 0 && -steps > view->offset) {
2369 scroll_steps = -view->offset;
2371 } else if (steps > 0) {
2372 if (view->lineno == view->lines - 1 &&
2373 view->lines > view->height) {
2374 scroll_steps = view->lines - view->offset - 1;
2375 if (scroll_steps >= view->height)
2376 scroll_steps -= view->height - 1;
2381 if (!view_is_displayed(view)) {
2382 view->offset += scroll_steps;
2383 assert(0 <= view->offset && view->offset < view->lines);
2384 view->ops->select(view, &view->line[view->lineno]);
2388 /* Repaint the old "current" line if we be scrolling */
2389 if (ABS(steps) < view->height)
2390 draw_view_line(view, view->lineno - steps - view->offset);
2393 do_scroll_view(view, scroll_steps);
2397 /* Draw the current line */
2398 draw_view_line(view, view->lineno - view->offset);
2400 redrawwin(view->win);
2401 wrefresh(view->win);
2410 static void search_view(struct view *view, enum request request);
2413 select_view_line(struct view *view, unsigned long lineno)
2415 if (lineno - view->offset >= view->height) {
2416 view->offset = lineno;
2417 view->lineno = lineno;
2418 if (view_is_displayed(view))
2422 unsigned long old_lineno = view->lineno - view->offset;
2424 view->lineno = lineno;
2425 if (view_is_displayed(view)) {
2426 draw_view_line(view, old_lineno);
2427 draw_view_line(view, view->lineno - view->offset);
2428 redrawwin(view->win);
2429 wrefresh(view->win);
2431 view->ops->select(view, &view->line[view->lineno]);
2437 find_next(struct view *view, enum request request)
2439 unsigned long lineno = view->lineno;
2444 report("No previous search");
2446 search_view(view, request);
2456 case REQ_SEARCH_BACK:
2465 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2466 lineno += direction;
2468 /* Note, lineno is unsigned long so will wrap around in which case it
2469 * will become bigger than view->lines. */
2470 for (; lineno < view->lines; lineno += direction) {
2471 if (view->ops->grep(view, &view->line[lineno])) {
2472 select_view_line(view, lineno);
2473 report("Line %ld matches '%s'", lineno + 1, view->grep);
2478 report("No match found for '%s'", view->grep);
2482 search_view(struct view *view, enum request request)
2487 regfree(view->regex);
2490 view->regex = calloc(1, sizeof(*view->regex));
2495 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2496 if (regex_err != 0) {
2497 char buf[SIZEOF_STR] = "unknown error";
2499 regerror(regex_err, view->regex, buf, sizeof(buf));
2500 report("Search failed: %s", buf);
2504 string_copy(view->grep, opt_search);
2506 find_next(view, request);
2510 * Incremental updating
2514 reset_view(struct view *view)
2518 for (i = 0; i < view->lines; i++)
2519 free(view->line[i].data);
2522 view->p_offset = view->offset;
2523 view->p_lineno = view->lineno;
2529 view->line_alloc = 0;
2531 view->update_secs = 0;
2535 free_argv(const char *argv[])
2539 for (argc = 0; argv[argc]; argc++)
2540 free((void *) argv[argc]);
2544 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2546 char buf[SIZEOF_STR];
2548 bool noreplace = flags == FORMAT_NONE;
2550 free_argv(dst_argv);
2552 for (argc = 0; src_argv[argc]; argc++) {
2553 const char *arg = src_argv[argc];
2557 char *next = strstr(arg, "%(");
2558 int len = next - arg;
2561 if (!next || noreplace) {
2562 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2567 } else if (!prefixcmp(next, "%(directory)")) {
2570 } else if (!prefixcmp(next, "%(file)")) {
2573 } else if (!prefixcmp(next, "%(ref)")) {
2574 value = *opt_ref ? opt_ref : "HEAD";
2576 } else if (!prefixcmp(next, "%(head)")) {
2579 } else if (!prefixcmp(next, "%(commit)")) {
2582 } else if (!prefixcmp(next, "%(blob)")) {
2586 report("Unknown replacement: `%s`", next);
2590 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2593 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2596 dst_argv[argc] = strdup(buf);
2597 if (!dst_argv[argc])
2601 dst_argv[argc] = NULL;
2603 return src_argv[argc] == NULL;
2607 restore_view_position(struct view *view)
2609 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2612 /* Changing the view position cancels the restoring. */
2613 /* FIXME: Changing back to the first line is not detected. */
2614 if (view->offset != 0 || view->lineno != 0) {
2615 view->p_restore = FALSE;
2619 if (view->p_lineno >= view->lines) {
2620 view->p_lineno = view->lines > 0 ? view->lines - 1 : 0;
2621 if (view->p_offset >= view->p_lineno) {
2622 unsigned long half = view->height / 2;
2624 if (view->p_lineno > half)
2625 view->p_offset = view->p_lineno - half;
2631 if (view_is_displayed(view) &&
2632 view->offset != view->p_offset &&
2633 view->lineno != view->p_lineno)
2636 view->offset = view->p_offset;
2637 view->lineno = view->p_lineno;
2638 view->p_restore = FALSE;
2644 end_update(struct view *view, bool force)
2648 while (!view->ops->read(view, NULL))
2651 set_nonblocking_input(FALSE);
2653 kill_io(view->pipe);
2654 done_io(view->pipe);
2659 setup_update(struct view *view, const char *vid)
2661 set_nonblocking_input(TRUE);
2663 string_copy_rev(view->vid, vid);
2664 view->pipe = &view->io;
2665 view->start_time = time(NULL);
2669 prepare_update(struct view *view, const char *argv[], const char *dir,
2670 enum format_flags flags)
2673 end_update(view, TRUE);
2674 return init_io_rd(&view->io, argv, dir, flags);
2678 prepare_update_file(struct view *view, const char *name)
2681 end_update(view, TRUE);
2682 return io_open(&view->io, name);
2686 begin_update(struct view *view, bool refresh)
2689 end_update(view, TRUE);
2692 if (!start_io(&view->io))
2696 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2699 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2702 /* Put the current ref_* value to the view title ref
2703 * member. This is needed by the blob view. Most other
2704 * views sets it automatically after loading because the
2705 * first line is a commit line. */
2706 string_copy_rev(view->ref, view->id);
2709 setup_update(view, view->id);
2714 #define ITEM_CHUNK_SIZE 256
2716 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2718 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2719 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2721 if (mem == NULL || num_chunks != num_chunks_new) {
2722 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2723 mem = realloc(mem, *size * item_size);
2729 static struct line *
2730 realloc_lines(struct view *view, size_t line_size)
2732 size_t alloc = view->line_alloc;
2733 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2734 sizeof(*view->line));
2740 view->line_alloc = alloc;
2745 update_view(struct view *view)
2747 char out_buffer[BUFSIZ * 2];
2749 /* Clear the view and redraw everything since the tree sorting
2750 * might have rearranged things. */
2751 bool redraw = view->lines == 0;
2752 bool can_read = TRUE;
2757 if (!io_can_read(view->pipe)) {
2758 if (view->lines == 0) {
2759 time_t secs = time(NULL) - view->start_time;
2761 if (secs > view->update_secs) {
2762 if (view->update_secs == 0)
2764 update_view_title(view);
2765 view->update_secs = secs;
2771 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2772 if (opt_iconv != ICONV_NONE) {
2773 ICONV_CONST char *inbuf = line;
2774 size_t inlen = strlen(line) + 1;
2776 char *outbuf = out_buffer;
2777 size_t outlen = sizeof(out_buffer);
2781 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2782 if (ret != (size_t) -1)
2786 if (!view->ops->read(view, line))
2791 unsigned long lines = view->lines;
2794 for (digits = 0; lines; digits++)
2797 /* Keep the displayed view in sync with line number scaling. */
2798 if (digits != view->digits) {
2799 view->digits = digits;
2800 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2805 if (io_error(view->pipe)) {
2806 report("Failed to read: %s", io_strerror(view->pipe));
2807 end_update(view, TRUE);
2809 } else if (io_eof(view->pipe)) {
2811 end_update(view, FALSE);
2814 if (restore_view_position(view))
2817 if (!view_is_displayed(view))
2821 redraw_view_from(view, 0);
2823 redraw_view_dirty(view);
2825 /* Update the title _after_ the redraw so that if the redraw picks up a
2826 * commit reference in view->ref it'll be available here. */
2827 update_view_title(view);
2831 report("Allocation failure");
2832 end_update(view, TRUE);
2836 static struct line *
2837 add_line_data(struct view *view, void *data, enum line_type type)
2841 if (!realloc_lines(view, view->lines + 1))
2844 line = &view->line[view->lines++];
2845 memset(line, 0, sizeof(*line));
2853 static struct line *
2854 add_line_text(struct view *view, const char *text, enum line_type type)
2856 char *data = text ? strdup(text) : NULL;
2858 return data ? add_line_data(view, data, type) : NULL;
2861 static struct line *
2862 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2864 char buf[SIZEOF_STR];
2867 va_start(args, fmt);
2868 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2872 return buf[0] ? add_line_text(view, buf, type) : NULL;
2880 OPEN_DEFAULT = 0, /* Use default view switching. */
2881 OPEN_SPLIT = 1, /* Split current view. */
2882 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2883 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2884 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2885 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2886 OPEN_PREPARED = 32, /* Open already prepared command. */
2890 open_view(struct view *prev, enum request request, enum open_flags flags)
2892 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2893 bool split = !!(flags & OPEN_SPLIT);
2894 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2895 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2896 struct view *view = VIEW(request);
2897 int nviews = displayed_views();
2898 struct view *base_view = display[0];
2900 if (view == prev && nviews == 1 && !reload) {
2901 report("Already in %s view", view->name);
2905 if (view->git_dir && !opt_git_dir[0]) {
2906 report("The %s view is disabled in pager view", view->name);
2914 } else if (!nomaximize) {
2915 /* Maximize the current view. */
2916 memset(display, 0, sizeof(display));
2918 display[current_view] = view;
2921 /* Resize the view when switching between split- and full-screen,
2922 * or when switching between two different full-screen views. */
2923 if (nviews != displayed_views() ||
2924 (nviews == 1 && base_view != display[0]))
2927 if (view->ops->open) {
2929 end_update(view, TRUE);
2930 if (!view->ops->open(view)) {
2931 report("Failed to load %s view", view->name);
2934 restore_view_position(view);
2936 } else if ((reload || strcmp(view->vid, view->id)) &&
2937 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2938 report("Failed to load %s view", view->name);
2942 if (split && prev->lineno - prev->offset >= prev->height) {
2943 /* Take the title line into account. */
2944 int lines = prev->lineno - prev->offset - prev->height + 1;
2946 /* Scroll the view that was split if the current line is
2947 * outside the new limited view. */
2948 do_scroll_view(prev, lines);
2951 if (prev && view != prev) {
2952 if (split && !backgrounded) {
2953 /* "Blur" the previous view. */
2954 update_view_title(prev);
2957 view->parent = prev;
2960 if (view->pipe && view->lines == 0) {
2961 /* Clear the old view and let the incremental updating refill
2964 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
2966 } else if (view_is_displayed(view)) {
2971 /* If the view is backgrounded the above calls to report()
2972 * won't redraw the view title. */
2974 update_view_title(view);
2978 open_external_viewer(const char *argv[], const char *dir)
2980 def_prog_mode(); /* save current tty modes */
2981 endwin(); /* restore original tty modes */
2982 run_io_fg(argv, dir);
2983 fprintf(stderr, "Press Enter to continue");
2986 redraw_display(TRUE);
2990 open_mergetool(const char *file)
2992 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
2994 open_external_viewer(mergetool_argv, opt_cdup);
2998 open_editor(bool from_root, const char *file)
3000 const char *editor_argv[] = { "vi", file, NULL };
3003 editor = getenv("GIT_EDITOR");
3004 if (!editor && *opt_editor)
3005 editor = opt_editor;
3007 editor = getenv("VISUAL");
3009 editor = getenv("EDITOR");
3013 editor_argv[0] = editor;
3014 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3018 open_run_request(enum request request)
3020 struct run_request *req = get_run_request(request);
3021 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3024 report("Unknown run request");
3028 if (format_argv(argv, req->argv, FORMAT_ALL))
3029 open_external_viewer(argv, NULL);
3034 * User request switch noodle
3038 view_driver(struct view *view, enum request request)
3042 if (request == REQ_NONE) {
3047 if (request > REQ_NONE) {
3048 open_run_request(request);
3049 /* FIXME: When all views can refresh always do this. */
3050 if (view == VIEW(REQ_VIEW_STATUS) ||
3051 view == VIEW(REQ_VIEW_MAIN) ||
3052 view == VIEW(REQ_VIEW_LOG) ||
3053 view == VIEW(REQ_VIEW_STAGE))
3054 request = REQ_REFRESH;
3059 if (view && view->lines) {
3060 request = view->ops->request(view, request, &view->line[view->lineno]);
3061 if (request == REQ_NONE)
3068 case REQ_MOVE_PAGE_UP:
3069 case REQ_MOVE_PAGE_DOWN:
3070 case REQ_MOVE_FIRST_LINE:
3071 case REQ_MOVE_LAST_LINE:
3072 move_view(view, request);
3075 case REQ_SCROLL_LINE_DOWN:
3076 case REQ_SCROLL_LINE_UP:
3077 case REQ_SCROLL_PAGE_DOWN:
3078 case REQ_SCROLL_PAGE_UP:
3079 scroll_view(view, request);
3082 case REQ_VIEW_BLAME:
3084 report("No file chosen, press %s to open tree view",
3085 get_key(REQ_VIEW_TREE));
3088 open_view(view, request, OPEN_DEFAULT);
3093 report("No file chosen, press %s to open tree view",
3094 get_key(REQ_VIEW_TREE));
3097 open_view(view, request, OPEN_DEFAULT);
3100 case REQ_VIEW_PAGER:
3101 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3102 report("No pager content, press %s to run command from prompt",
3103 get_key(REQ_PROMPT));
3106 open_view(view, request, OPEN_DEFAULT);
3109 case REQ_VIEW_STAGE:
3110 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3111 report("No stage content, press %s to open the status view and choose file",
3112 get_key(REQ_VIEW_STATUS));
3115 open_view(view, request, OPEN_DEFAULT);
3118 case REQ_VIEW_STATUS:
3119 if (opt_is_inside_work_tree == FALSE) {
3120 report("The status view requires a working tree");
3123 open_view(view, request, OPEN_DEFAULT);
3131 open_view(view, request, OPEN_DEFAULT);
3136 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3138 if ((view == VIEW(REQ_VIEW_DIFF) &&
3139 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3140 (view == VIEW(REQ_VIEW_DIFF) &&
3141 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3142 (view == VIEW(REQ_VIEW_STAGE) &&
3143 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3144 (view == VIEW(REQ_VIEW_BLOB) &&
3145 view->parent == VIEW(REQ_VIEW_TREE))) {
3148 view = view->parent;
3149 line = view->lineno;
3150 move_view(view, request);
3151 if (view_is_displayed(view))
3152 update_view_title(view);
3153 if (line != view->lineno)
3154 view->ops->request(view, REQ_ENTER,
3155 &view->line[view->lineno]);
3158 move_view(view, request);
3164 int nviews = displayed_views();
3165 int next_view = (current_view + 1) % nviews;
3167 if (next_view == current_view) {
3168 report("Only one view is displayed");
3172 current_view = next_view;
3173 /* Blur out the title of the previous view. */
3174 update_view_title(view);
3179 report("Refreshing is not yet supported for the %s view", view->name);
3183 if (displayed_views() == 2)
3184 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3187 case REQ_TOGGLE_LINENO:
3188 toggle_view_option(&opt_line_number, "line numbers");
3191 case REQ_TOGGLE_DATE:
3192 toggle_view_option(&opt_date, "date display");
3195 case REQ_TOGGLE_AUTHOR:
3196 toggle_view_option(&opt_author, "author display");
3199 case REQ_TOGGLE_REV_GRAPH:
3200 toggle_view_option(&opt_rev_graph, "revision graph display");
3203 case REQ_TOGGLE_REFS:
3204 toggle_view_option(&opt_show_refs, "reference display");
3208 case REQ_SEARCH_BACK:
3209 search_view(view, request);
3214 find_next(view, request);
3217 case REQ_STOP_LOADING:
3218 for (i = 0; i < ARRAY_SIZE(views); i++) {
3221 report("Stopped loading the %s view", view->name),
3222 end_update(view, TRUE);
3226 case REQ_SHOW_VERSION:
3227 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3230 case REQ_SCREEN_REDRAW:
3231 redraw_display(TRUE);
3235 report("Nothing to edit");
3239 report("Nothing to enter");
3242 case REQ_VIEW_CLOSE:
3243 /* XXX: Mark closed views by letting view->parent point to the
3244 * view itself. Parents to closed view should never be
3247 view->parent->parent != view->parent) {
3248 memset(display, 0, sizeof(display));
3250 display[current_view] = view->parent;
3251 view->parent = view;
3253 redraw_display(FALSE);
3262 report("Unknown key, press 'h' for help");
3275 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3277 char *text = line->data;
3279 if (opt_line_number && draw_lineno(view, lineno))
3282 draw_text(view, line->type, text, TRUE);
3287 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3289 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3290 char refbuf[SIZEOF_STR];
3293 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3294 ref = chomp_string(refbuf);
3299 /* This is the only fatal call, since it can "corrupt" the buffer. */
3300 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3307 add_pager_refs(struct view *view, struct line *line)
3309 char buf[SIZEOF_STR];
3310 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3312 size_t bufpos = 0, refpos = 0;
3313 const char *sep = "Refs: ";
3314 bool is_tag = FALSE;
3316 assert(line->type == LINE_COMMIT);
3318 refs = get_refs(commit_id);
3320 if (view == VIEW(REQ_VIEW_DIFF))
3321 goto try_add_describe_ref;
3326 struct ref *ref = refs[refpos];
3327 const char *fmt = ref->tag ? "%s[%s]" :
3328 ref->remote ? "%s<%s>" : "%s%s";
3330 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3335 } while (refs[refpos++]->next);
3337 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3338 try_add_describe_ref:
3339 /* Add <tag>-g<commit_id> "fake" reference. */
3340 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3347 add_line_text(view, buf, LINE_PP_REFS);
3351 pager_read(struct view *view, char *data)
3358 line = add_line_text(view, data, get_line_type(data));
3362 if (line->type == LINE_COMMIT &&
3363 (view == VIEW(REQ_VIEW_DIFF) ||
3364 view == VIEW(REQ_VIEW_LOG)))
3365 add_pager_refs(view, line);
3371 pager_request(struct view *view, enum request request, struct line *line)
3375 if (request != REQ_ENTER)
3378 if (line->type == LINE_COMMIT &&
3379 (view == VIEW(REQ_VIEW_LOG) ||
3380 view == VIEW(REQ_VIEW_PAGER))) {
3381 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3385 /* Always scroll the view even if it was split. That way
3386 * you can use Enter to scroll through the log view and
3387 * split open each commit diff. */
3388 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3390 /* FIXME: A minor workaround. Scrolling the view will call report("")
3391 * but if we are scrolling a non-current view this won't properly
3392 * update the view title. */
3394 update_view_title(view);
3400 pager_grep(struct view *view, struct line *line)
3403 char *text = line->data;
3408 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3415 pager_select(struct view *view, struct line *line)
3417 if (line->type == LINE_COMMIT) {
3418 char *text = (char *)line->data + STRING_SIZE("commit ");
3420 if (view != VIEW(REQ_VIEW_PAGER))
3421 string_copy_rev(view->ref, text);
3422 string_copy_rev(ref_commit, text);
3426 static struct view_ops pager_ops = {
3437 static const char *log_argv[SIZEOF_ARG] = {
3438 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3442 log_request(struct view *view, enum request request, struct line *line)
3447 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3450 return pager_request(view, request, line);
3454 static struct view_ops log_ops = {
3465 static const char *diff_argv[SIZEOF_ARG] = {
3466 "git", "show", "--pretty=fuller", "--no-color", "--root",
3467 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3470 static struct view_ops diff_ops = {
3486 help_open(struct view *view)
3488 int lines = ARRAY_SIZE(req_info) + 2;
3491 if (view->lines > 0)
3494 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3495 if (!req_info[i].request)
3498 lines += run_requests + 1;
3500 view->line = calloc(lines, sizeof(*view->line));
3504 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3506 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3509 if (req_info[i].request == REQ_NONE)
3512 if (!req_info[i].request) {
3513 add_line_text(view, "", LINE_DEFAULT);
3514 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3518 key = get_key(req_info[i].request);
3520 key = "(no key defined)";
3522 add_line_format(view, LINE_DEFAULT, " %-25s %s",
3523 key, req_info[i].help);
3527 add_line_text(view, "", LINE_DEFAULT);
3528 add_line_text(view, "External commands:", LINE_DEFAULT);
3531 for (i = 0; i < run_requests; i++) {
3532 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3534 char cmd[SIZEOF_STR];
3541 key = get_key_name(req->key);
3543 key = "(no key defined)";
3545 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3546 if (!string_format_from(cmd, &bufpos, "%s%s",
3547 argc ? " " : "", req->argv[argc]))
3550 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3551 keymap_table[req->keymap].name, key, cmd);
3557 static struct view_ops help_ops = {
3573 struct tree_stack_entry {
3574 struct tree_stack_entry *prev; /* Entry below this in the stack */
3575 unsigned long lineno; /* Line number to restore */
3576 char *name; /* Position of name in opt_path */
3579 /* The top of the path stack. */
3580 static struct tree_stack_entry *tree_stack = NULL;
3581 unsigned long tree_lineno = 0;
3584 pop_tree_stack_entry(void)
3586 struct tree_stack_entry *entry = tree_stack;
3588 tree_lineno = entry->lineno;
3590 tree_stack = entry->prev;
3595 push_tree_stack_entry(const char *name, unsigned long lineno)
3597 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3598 size_t pathlen = strlen(opt_path);
3603 entry->prev = tree_stack;
3604 entry->name = opt_path + pathlen;
3607 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3608 pop_tree_stack_entry();
3612 /* Move the current line to the first tree entry. */
3614 entry->lineno = lineno;
3617 /* Parse output from git-ls-tree(1):
3619 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3620 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3621 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3622 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3625 #define SIZEOF_TREE_ATTR \
3626 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3628 #define TREE_UP_FORMAT "040000 tree %s\t.."
3631 tree_path(struct line *line)
3633 const char *path = line->data;
3635 return path + SIZEOF_TREE_ATTR;
3639 tree_compare_entry(struct line *line1, struct line *line2)
3641 if (line1->type != line2->type)
3642 return line1->type == LINE_TREE_DIR ? -1 : 1;
3643 return strcmp(tree_path(line1), tree_path(line2));
3647 tree_read(struct view *view, char *text)
3649 size_t textlen = text ? strlen(text) : 0;
3650 struct line *entry, *line;
3651 enum line_type type;
3655 if (textlen <= SIZEOF_TREE_ATTR)
3658 type = text[STRING_SIZE("100644 ")] == 't'
3659 ? LINE_TREE_DIR : LINE_TREE_FILE;
3661 if (view->lines == 0 &&
3662 !add_line_format(view, LINE_DEFAULT, "Directory path /%s", opt_path))
3665 /* Strip the path part ... */
3667 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3668 size_t striplen = strlen(opt_path);
3669 char *path = text + SIZEOF_TREE_ATTR;
3671 if (pathlen > striplen)
3672 memmove(path, path + striplen,
3673 pathlen - striplen + 1);
3675 /* Insert "link" to parent directory. */
3676 if (view->lines == 1 &&
3677 !add_line_format(view, LINE_TREE_DIR, TREE_UP_FORMAT, view->ref))
3681 entry = add_line_text(view, text, type);
3686 /* Skip "Directory ..." and ".." line. */
3687 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3688 if (tree_compare_entry(line, entry) <= 0)
3691 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3695 for (; line <= entry; line++)
3696 line->dirty = line->cleareol = 1;
3700 if (tree_lineno > view->lineno) {
3701 view->lineno = tree_lineno;
3711 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
3712 int fd = mkstemp(file);
3715 report("Failed to create temporary file");
3716 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
3717 report("Failed to save blob data to file");
3719 open_editor(FALSE, file);
3725 tree_request(struct view *view, enum request request, struct line *line)
3727 enum open_flags flags;
3730 case REQ_VIEW_BLAME:
3731 if (line->type != LINE_TREE_FILE) {
3732 report("Blame only supported for files");
3736 string_copy(opt_ref, view->vid);
3740 if (line->type != LINE_TREE_FILE) {
3741 report("Edit only supported for files");
3742 } else if (!is_head_commit(view->vid)) {
3745 open_editor(TRUE, opt_file);
3749 case REQ_TREE_PARENT:
3751 /* quit view if at top of tree */
3752 return REQ_VIEW_CLOSE;
3755 line = &view->line[1];
3765 /* Cleanup the stack if the tree view is at a different tree. */
3766 while (!*opt_path && tree_stack)
3767 pop_tree_stack_entry();
3769 switch (line->type) {
3771 /* Depending on whether it is a subdir or parent (updir?) link
3772 * mangle the path buffer. */
3773 if (line == &view->line[1] && *opt_path) {
3774 pop_tree_stack_entry();
3777 const char *basename = tree_path(line);
3779 push_tree_stack_entry(basename, view->lineno);
3782 /* Trees and subtrees share the same ID, so they are not not
3783 * unique like blobs. */
3784 flags = OPEN_RELOAD;
3785 request = REQ_VIEW_TREE;
3788 case LINE_TREE_FILE:
3789 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3790 request = REQ_VIEW_BLOB;
3797 open_view(view, request, flags);
3798 if (request == REQ_VIEW_TREE) {
3799 view->lineno = tree_lineno;
3806 tree_select(struct view *view, struct line *line)
3808 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3810 if (line->type == LINE_TREE_FILE) {
3811 string_copy_rev(ref_blob, text);
3812 string_format(opt_file, "%s%s", opt_path, tree_path(line));
3814 } else if (line->type != LINE_TREE_DIR) {
3818 string_copy_rev(view->ref, text);
3821 static const char *tree_argv[SIZEOF_ARG] = {
3822 "git", "ls-tree", "%(commit)", "%(directory)", NULL
3825 static struct view_ops tree_ops = {
3837 blob_read(struct view *view, char *line)
3841 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3845 blob_request(struct view *view, enum request request, struct line *line)
3852 return pager_request(view, request, line);
3856 static const char *blob_argv[SIZEOF_ARG] = {
3857 "git", "cat-file", "blob", "%(blob)", NULL
3860 static struct view_ops blob_ops = {
3874 * Loading the blame view is a two phase job:
3876 * 1. File content is read either using opt_file from the
3877 * filesystem or using git-cat-file.
3878 * 2. Then blame information is incrementally added by
3879 * reading output from git-blame.
3882 static const char *blame_head_argv[] = {
3883 "git", "blame", "--incremental", "--", "%(file)", NULL
3886 static const char *blame_ref_argv[] = {
3887 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
3890 static const char *blame_cat_file_argv[] = {
3891 "git", "cat-file", "blob", "%(ref):%(file)", NULL
3894 struct blame_commit {
3895 char id[SIZEOF_REV]; /* SHA1 ID. */
3896 char title[128]; /* First line of the commit message. */
3897 char author[75]; /* Author of the commit. */
3898 struct tm time; /* Date from the author ident. */
3899 char filename[128]; /* Name of file. */
3900 bool has_previous; /* Was a "previous" line detected. */
3904 struct blame_commit *commit;
3909 blame_open(struct view *view)
3911 if (*opt_ref || !io_open(&view->io, opt_file)) {
3912 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
3916 setup_update(view, opt_file);
3917 string_format(view->ref, "%s ...", opt_file);
3922 static struct blame_commit *
3923 get_blame_commit(struct view *view, const char *id)
3927 for (i = 0; i < view->lines; i++) {
3928 struct blame *blame = view->line[i].data;
3933 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3934 return blame->commit;
3938 struct blame_commit *commit = calloc(1, sizeof(*commit));
3941 string_ncopy(commit->id, id, SIZEOF_REV);
3947 parse_number(const char **posref, size_t *number, size_t min, size_t max)
3949 const char *pos = *posref;
3952 pos = strchr(pos + 1, ' ');
3953 if (!pos || !isdigit(pos[1]))
3955 *number = atoi(pos + 1);
3956 if (*number < min || *number > max)
3963 static struct blame_commit *
3964 parse_blame_commit(struct view *view, const char *text, int *blamed)
3966 struct blame_commit *commit;
3967 struct blame *blame;
3968 const char *pos = text + SIZEOF_REV - 1;
3972 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3975 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3976 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3979 commit = get_blame_commit(view, text);
3985 struct line *line = &view->line[lineno + group - 1];
3988 blame->commit = commit;
3996 blame_read_file(struct view *view, const char *line, bool *read_file)
3999 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4002 if (view->lines == 0 && !view->parent)
4003 die("No blame exist for %s", view->vid);
4005 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4006 report("Failed to load blame data");
4010 done_io(view->pipe);
4016 size_t linelen = strlen(line);
4017 struct blame *blame = malloc(sizeof(*blame) + linelen);
4019 blame->commit = NULL;
4020 strncpy(blame->text, line, linelen);
4021 blame->text[linelen] = 0;
4022 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4027 match_blame_header(const char *name, char **line)
4029 size_t namelen = strlen(name);
4030 bool matched = !strncmp(name, *line, namelen);
4039 blame_read(struct view *view, char *line)
4041 static struct blame_commit *commit = NULL;
4042 static int blamed = 0;
4043 static time_t author_time;
4044 static bool read_file = TRUE;
4047 return blame_read_file(view, line, &read_file);
4054 string_format(view->ref, "%s", view->vid);
4055 if (view_is_displayed(view)) {
4056 update_view_title(view);
4057 redraw_view_from(view, 0);
4063 commit = parse_blame_commit(view, line, &blamed);
4064 string_format(view->ref, "%s %2d%%", view->vid,
4065 view->lines ? blamed * 100 / view->lines : 0);
4067 } else if (match_blame_header("author ", &line)) {
4068 string_ncopy(commit->author, line, strlen(line));
4070 } else if (match_blame_header("author-time ", &line)) {
4071 author_time = (time_t) atol(line);
4073 } else if (match_blame_header("author-tz ", &line)) {
4076 tz = ('0' - line[1]) * 60 * 60 * 10;
4077 tz += ('0' - line[2]) * 60 * 60;
4078 tz += ('0' - line[3]) * 60;
4079 tz += ('0' - line[4]) * 60;
4085 gmtime_r(&author_time, &commit->time);
4087 } else if (match_blame_header("summary ", &line)) {
4088 string_ncopy(commit->title, line, strlen(line));
4090 } else if (match_blame_header("previous ", &line)) {
4091 commit->has_previous = TRUE;
4093 } else if (match_blame_header("filename ", &line)) {
4094 string_ncopy(commit->filename, line, strlen(line));
4102 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4104 struct blame *blame = line->data;
4105 struct tm *time = NULL;
4106 const char *id = NULL, *author = NULL;
4108 if (blame->commit && *blame->commit->filename) {
4109 id = blame->commit->id;
4110 author = blame->commit->author;
4111 time = &blame->commit->time;
4114 if (opt_date && draw_date(view, time))
4118 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
4121 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4124 if (draw_lineno(view, lineno))
4127 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4132 check_blame_commit(struct blame *blame)
4135 report("Commit data not loaded yet");
4136 else if (!strcmp(blame->commit->id, NULL_ID))
4137 report("No commit exist for the selected line");
4144 blame_request(struct view *view, enum request request, struct line *line)
4146 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4147 struct blame *blame = line->data;
4150 case REQ_VIEW_BLAME:
4151 if (check_blame_commit(blame)) {
4152 string_copy(opt_ref, blame->commit->id);
4153 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4158 if (!blame->commit) {
4159 report("No commit loaded yet");
4163 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4164 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4167 if (!strcmp(blame->commit->id, NULL_ID)) {
4168 struct view *diff = VIEW(REQ_VIEW_DIFF);
4169 const char *diff_index_argv[] = {
4170 "git", "diff-index", "--root", "--patch-with-stat",
4171 "-C", "-M", "HEAD", "--", view->vid, NULL
4174 if (!blame->commit->has_previous) {
4175 diff_index_argv[1] = "diff";
4176 diff_index_argv[2] = "--no-color";
4177 diff_index_argv[6] = "--";
4178 diff_index_argv[7] = "/dev/null";
4181 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4182 report("Failed to allocate diff command");
4185 flags |= OPEN_PREPARED;
4188 open_view(view, REQ_VIEW_DIFF, flags);
4189 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4190 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4201 blame_grep(struct view *view, struct line *line)
4203 struct blame *blame = line->data;
4204 struct blame_commit *commit = blame->commit;
4207 #define MATCH(text, on) \
4208 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4211 char buf[DATE_COLS + 1];
4213 if (MATCH(commit->title, 1) ||
4214 MATCH(commit->author, opt_author) ||
4215 MATCH(commit->id, opt_date))
4218 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4223 return MATCH(blame->text, 1);
4229 blame_select(struct view *view, struct line *line)
4231 struct blame *blame = line->data;
4232 struct blame_commit *commit = blame->commit;
4237 if (!strcmp(commit->id, NULL_ID))
4238 string_ncopy(ref_commit, "HEAD", 4);
4240 string_copy_rev(ref_commit, commit->id);
4243 static struct view_ops blame_ops = {
4262 char rev[SIZEOF_REV];
4263 char name[SIZEOF_STR];
4267 char rev[SIZEOF_REV];
4268 char name[SIZEOF_STR];
4272 static char status_onbranch[SIZEOF_STR];
4273 static struct status stage_status;
4274 static enum line_type stage_line_type;
4275 static size_t stage_chunks;
4276 static int *stage_chunk;
4278 /* This should work even for the "On branch" line. */
4280 status_has_none(struct view *view, struct line *line)
4282 return line < view->line + view->lines && !line[1].data;
4285 /* Get fields from the diff line:
4286 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4289 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4291 const char *old_mode = buf + 1;
4292 const char *new_mode = buf + 8;
4293 const char *old_rev = buf + 15;
4294 const char *new_rev = buf + 56;
4295 const char *status = buf + 97;
4298 old_mode[-1] != ':' ||
4299 new_mode[-1] != ' ' ||
4300 old_rev[-1] != ' ' ||
4301 new_rev[-1] != ' ' ||
4305 file->status = *status;
4307 string_copy_rev(file->old.rev, old_rev);
4308 string_copy_rev(file->new.rev, new_rev);
4310 file->old.mode = strtoul(old_mode, NULL, 8);
4311 file->new.mode = strtoul(new_mode, NULL, 8);
4313 file->old.name[0] = file->new.name[0] = 0;
4319 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4321 struct status *file = NULL;
4322 struct status *unmerged = NULL;
4326 if (!run_io(&io, argv, NULL, IO_RD))
4329 add_line_data(view, NULL, type);
4331 while ((buf = io_get(&io, 0, TRUE))) {
4333 file = calloc(1, sizeof(*file));
4334 if (!file || !add_line_data(view, file, type))
4338 /* Parse diff info part. */
4340 file->status = status;
4342 string_copy(file->old.rev, NULL_ID);
4344 } else if (!file->status) {
4345 if (!status_get_diff(file, buf, strlen(buf)))
4348 buf = io_get(&io, 0, TRUE);
4352 /* Collapse all 'M'odified entries that follow a
4353 * associated 'U'nmerged entry. */
4354 if (file->status == 'U') {
4357 } else if (unmerged) {
4358 int collapse = !strcmp(buf, unmerged->new.name);
4370 /* Grab the old name for rename/copy. */
4371 if (!*file->old.name &&
4372 (file->status == 'R' || file->status == 'C')) {
4373 string_ncopy(file->old.name, buf, strlen(buf));
4375 buf = io_get(&io, 0, TRUE);
4380 /* git-ls-files just delivers a NUL separated list of
4381 * file names similar to the second half of the
4382 * git-diff-* output. */
4383 string_ncopy(file->new.name, buf, strlen(buf));
4384 if (!*file->old.name)
4385 string_copy(file->old.name, file->new.name);
4389 if (io_error(&io)) {
4395 if (!view->line[view->lines - 1].data)
4396 add_line_data(view, NULL, LINE_STAT_NONE);
4402 /* Don't show unmerged entries in the staged section. */
4403 static const char *status_diff_index_argv[] = {
4404 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4405 "--cached", "-M", "HEAD", NULL
4408 static const char *status_diff_files_argv[] = {
4409 "git", "diff-files", "-z", NULL
4412 static const char *status_list_other_argv[] = {
4413 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4416 static const char *status_list_no_head_argv[] = {
4417 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4420 static const char *update_index_argv[] = {
4421 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4424 /* Restore the previous line number to stay in the context or select a
4425 * line with something that can be updated. */
4427 status_restore(struct view *view)
4429 if (view->p_lineno >= view->lines)
4430 view->p_lineno = view->lines - 1;
4431 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4433 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4436 /* If the above fails, always skip the "On branch" line. */
4437 if (view->p_lineno < view->lines)
4438 view->lineno = view->p_lineno;
4442 if (view->lineno < view->offset)
4443 view->offset = view->lineno;
4444 else if (view->offset + view->height <= view->lineno)
4445 view->offset = view->lineno - view->height + 1;
4447 view->p_restore = FALSE;
4450 /* First parse staged info using git-diff-index(1), then parse unstaged
4451 * info using git-diff-files(1), and finally untracked files using
4452 * git-ls-files(1). */
4454 status_open(struct view *view)
4458 add_line_data(view, NULL, LINE_STAT_HEAD);
4459 if (is_initial_commit())
4460 string_copy(status_onbranch, "Initial commit");
4461 else if (!*opt_head)
4462 string_copy(status_onbranch, "Not currently on any branch");
4463 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4466 run_io_bg(update_index_argv);
4468 if (is_initial_commit()) {
4469 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4471 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4475 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4476 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4479 /* Restore the exact position or use the specialized restore
4481 if (!view->p_restore)
4482 status_restore(view);
4487 status_draw(struct view *view, struct line *line, unsigned int lineno)
4489 struct status *status = line->data;
4490 enum line_type type;
4494 switch (line->type) {
4495 case LINE_STAT_STAGED:
4496 type = LINE_STAT_SECTION;
4497 text = "Changes to be committed:";
4500 case LINE_STAT_UNSTAGED:
4501 type = LINE_STAT_SECTION;
4502 text = "Changed but not updated:";
4505 case LINE_STAT_UNTRACKED:
4506 type = LINE_STAT_SECTION;
4507 text = "Untracked files:";
4510 case LINE_STAT_NONE:
4511 type = LINE_DEFAULT;
4512 text = " (no files)";
4515 case LINE_STAT_HEAD:
4516 type = LINE_STAT_HEAD;
4517 text = status_onbranch;
4524 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4526 buf[0] = status->status;
4527 if (draw_text(view, line->type, buf, TRUE))
4529 type = LINE_DEFAULT;
4530 text = status->new.name;
4533 draw_text(view, type, text, TRUE);
4538 status_enter(struct view *view, struct line *line)
4540 struct status *status = line->data;
4541 const char *oldpath = status ? status->old.name : NULL;
4542 /* Diffs for unmerged entries are empty when passing the new
4543 * path, so leave it empty. */
4544 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4546 enum open_flags split;
4547 struct view *stage = VIEW(REQ_VIEW_STAGE);
4549 if (line->type == LINE_STAT_NONE ||
4550 (!status && line[1].type == LINE_STAT_NONE)) {
4551 report("No file to diff");
4555 switch (line->type) {
4556 case LINE_STAT_STAGED:
4557 if (is_initial_commit()) {
4558 const char *no_head_diff_argv[] = {
4559 "git", "diff", "--no-color", "--patch-with-stat",
4560 "--", "/dev/null", newpath, NULL
4563 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4566 const char *index_show_argv[] = {
4567 "git", "diff-index", "--root", "--patch-with-stat",
4568 "-C", "-M", "--cached", "HEAD", "--",
4569 oldpath, newpath, NULL
4572 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4577 info = "Staged changes to %s";
4579 info = "Staged changes";
4582 case LINE_STAT_UNSTAGED:
4584 const char *files_show_argv[] = {
4585 "git", "diff-files", "--root", "--patch-with-stat",
4586 "-C", "-M", "--", oldpath, newpath, NULL
4589 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4592 info = "Unstaged changes to %s";
4594 info = "Unstaged changes";
4597 case LINE_STAT_UNTRACKED:
4599 report("No file to show");
4603 if (!suffixcmp(status->new.name, -1, "/")) {
4604 report("Cannot display a directory");
4608 if (!prepare_update_file(stage, newpath))
4610 info = "Untracked file %s";
4613 case LINE_STAT_HEAD:
4617 die("line type %d not handled in switch", line->type);
4620 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4621 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
4622 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4624 stage_status = *status;
4626 memset(&stage_status, 0, sizeof(stage_status));
4629 stage_line_type = line->type;
4631 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4638 status_exists(struct status *status, enum line_type type)
4640 struct view *view = VIEW(REQ_VIEW_STATUS);
4641 unsigned long lineno;
4643 for (lineno = 0; lineno < view->lines; lineno++) {
4644 struct line *line = &view->line[lineno];
4645 struct status *pos = line->data;
4647 if (line->type != type)
4649 if (!pos && (!status || !status->status) && line[1].data) {
4650 select_view_line(view, lineno);
4653 if (pos && !strcmp(status->new.name, pos->new.name)) {
4654 select_view_line(view, lineno);
4664 status_update_prepare(struct io *io, enum line_type type)
4666 const char *staged_argv[] = {
4667 "git", "update-index", "-z", "--index-info", NULL
4669 const char *others_argv[] = {
4670 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4674 case LINE_STAT_STAGED:
4675 return run_io(io, staged_argv, opt_cdup, IO_WR);
4677 case LINE_STAT_UNSTAGED:
4678 return run_io(io, others_argv, opt_cdup, IO_WR);
4680 case LINE_STAT_UNTRACKED:
4681 return run_io(io, others_argv, NULL, IO_WR);
4684 die("line type %d not handled in switch", type);
4690 status_update_write(struct io *io, struct status *status, enum line_type type)
4692 char buf[SIZEOF_STR];
4696 case LINE_STAT_STAGED:
4697 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4700 status->old.name, 0))
4704 case LINE_STAT_UNSTAGED:
4705 case LINE_STAT_UNTRACKED:
4706 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4711 die("line type %d not handled in switch", type);
4714 return io_write(io, buf, bufsize);
4718 status_update_file(struct status *status, enum line_type type)
4723 if (!status_update_prepare(&io, type))
4726 result = status_update_write(&io, status, type);
4732 status_update_files(struct view *view, struct line *line)
4736 struct line *pos = view->line + view->lines;
4740 if (!status_update_prepare(&io, line->type))
4743 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4746 for (file = 0, done = 0; result && file < files; line++, file++) {
4747 int almost_done = file * 100 / files;
4749 if (almost_done > done) {
4751 string_format(view->ref, "updating file %u of %u (%d%% done)",
4753 update_view_title(view);
4755 result = status_update_write(&io, line->data, line->type);
4763 status_update(struct view *view)
4765 struct line *line = &view->line[view->lineno];
4767 assert(view->lines);
4770 /* This should work even for the "On branch" line. */
4771 if (line < view->line + view->lines && !line[1].data) {
4772 report("Nothing to update");
4776 if (!status_update_files(view, line + 1)) {
4777 report("Failed to update file status");
4781 } else if (!status_update_file(line->data, line->type)) {
4782 report("Failed to update file status");
4790 status_revert(struct status *status, enum line_type type, bool has_none)
4792 if (!status || type != LINE_STAT_UNSTAGED) {
4793 if (type == LINE_STAT_STAGED) {
4794 report("Cannot revert changes to staged files");
4795 } else if (type == LINE_STAT_UNTRACKED) {
4796 report("Cannot revert changes to untracked files");
4797 } else if (has_none) {
4798 report("Nothing to revert");
4800 report("Cannot revert changes to multiple files");
4805 const char *checkout_argv[] = {
4806 "git", "checkout", "--", status->old.name, NULL
4809 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
4811 return run_io_fg(checkout_argv, opt_cdup);
4816 status_request(struct view *view, enum request request, struct line *line)
4818 struct status *status = line->data;
4821 case REQ_STATUS_UPDATE:
4822 if (!status_update(view))
4826 case REQ_STATUS_REVERT:
4827 if (!status_revert(status, line->type, status_has_none(view, line)))
4831 case REQ_STATUS_MERGE:
4832 if (!status || status->status != 'U') {
4833 report("Merging only possible for files with unmerged status ('U').");
4836 open_mergetool(status->new.name);
4842 if (status->status == 'D') {
4843 report("File has been deleted.");
4847 open_editor(status->status != '?', status->new.name);
4850 case REQ_VIEW_BLAME:
4852 string_copy(opt_file, status->new.name);
4858 /* After returning the status view has been split to
4859 * show the stage view. No further reloading is
4861 status_enter(view, line);
4865 /* Simply reload the view. */
4872 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4878 status_select(struct view *view, struct line *line)
4880 struct status *status = line->data;
4881 char file[SIZEOF_STR] = "all files";
4885 if (status && !string_format(file, "'%s'", status->new.name))
4888 if (!status && line[1].type == LINE_STAT_NONE)
4891 switch (line->type) {
4892 case LINE_STAT_STAGED:
4893 text = "Press %s to unstage %s for commit";
4896 case LINE_STAT_UNSTAGED:
4897 text = "Press %s to stage %s for commit";
4900 case LINE_STAT_UNTRACKED:
4901 text = "Press %s to stage %s for addition";
4904 case LINE_STAT_HEAD:
4905 case LINE_STAT_NONE:
4906 text = "Nothing to update";
4910 die("line type %d not handled in switch", line->type);
4913 if (status && status->status == 'U') {
4914 text = "Press %s to resolve conflict in %s";
4915 key = get_key(REQ_STATUS_MERGE);
4918 key = get_key(REQ_STATUS_UPDATE);
4921 string_format(view->ref, text, key, file);
4925 status_grep(struct view *view, struct line *line)
4927 struct status *status = line->data;
4928 enum { S_STATUS, S_NAME, S_END } state;
4935 for (state = S_STATUS; state < S_END; state++) {
4939 case S_NAME: text = status->new.name; break;
4941 buf[0] = status->status;
4949 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4956 static struct view_ops status_ops = {
4969 stage_diff_write(struct io *io, struct line *line, struct line *end)
4971 while (line < end) {
4972 if (!io_write(io, line->data, strlen(line->data)) ||
4973 !io_write(io, "\n", 1))
4976 if (line->type == LINE_DIFF_CHUNK ||
4977 line->type == LINE_DIFF_HEADER)
4984 static struct line *
4985 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4987 for (; view->line < line; line--)
4988 if (line->type == type)
4995 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
4997 const char *apply_argv[SIZEOF_ARG] = {
4998 "git", "apply", "--whitespace=nowarn", NULL
5000 struct line *diff_hdr;
5004 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5009 apply_argv[argc++] = "--cached";
5010 if (revert || stage_line_type == LINE_STAT_STAGED)
5011 apply_argv[argc++] = "-R";
5012 apply_argv[argc++] = "-";
5013 apply_argv[argc++] = NULL;
5014 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5017 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5018 !stage_diff_write(&io, chunk, view->line + view->lines))
5022 run_io_bg(update_index_argv);
5024 return chunk ? TRUE : FALSE;
5028 stage_update(struct view *view, struct line *line)
5030 struct line *chunk = NULL;
5032 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5033 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5036 if (!stage_apply_chunk(view, chunk, FALSE)) {
5037 report("Failed to apply chunk");
5041 } else if (!stage_status.status) {
5042 view = VIEW(REQ_VIEW_STATUS);
5044 for (line = view->line; line < view->line + view->lines; line++)
5045 if (line->type == stage_line_type)
5048 if (!status_update_files(view, line + 1)) {
5049 report("Failed to update files");
5053 } else if (!status_update_file(&stage_status, stage_line_type)) {
5054 report("Failed to update file");
5062 stage_revert(struct view *view, struct line *line)
5064 struct line *chunk = NULL;
5066 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5067 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5070 if (!prompt_yesno("Are you sure you want to revert changes?"))
5073 if (!stage_apply_chunk(view, chunk, TRUE)) {
5074 report("Failed to revert chunk");
5080 return status_revert(stage_status.status ? &stage_status : NULL,
5081 stage_line_type, FALSE);
5087 stage_next(struct view *view, struct line *line)
5091 if (!stage_chunks) {
5092 static size_t alloc = 0;
5095 for (line = view->line; line < view->line + view->lines; line++) {
5096 if (line->type != LINE_DIFF_CHUNK)
5099 tmp = realloc_items(stage_chunk, &alloc,
5100 stage_chunks, sizeof(*tmp));
5102 report("Allocation failure");
5107 stage_chunk[stage_chunks++] = line - view->line;
5111 for (i = 0; i < stage_chunks; i++) {
5112 if (stage_chunk[i] > view->lineno) {
5113 do_scroll_view(view, stage_chunk[i] - view->lineno);
5114 report("Chunk %d of %d", i + 1, stage_chunks);
5119 report("No next chunk found");
5123 stage_request(struct view *view, enum request request, struct line *line)
5126 case REQ_STATUS_UPDATE:
5127 if (!stage_update(view, line))
5131 case REQ_STATUS_REVERT:
5132 if (!stage_revert(view, line))
5136 case REQ_STAGE_NEXT:
5137 if (stage_line_type == LINE_STAT_UNTRACKED) {
5138 report("File is untracked; press %s to add",
5139 get_key(REQ_STATUS_UPDATE));
5142 stage_next(view, line);
5146 if (!stage_status.new.name[0])
5148 if (stage_status.status == 'D') {
5149 report("File has been deleted.");
5153 open_editor(stage_status.status != '?', stage_status.new.name);
5157 /* Reload everything ... */
5160 case REQ_VIEW_BLAME:
5161 if (stage_status.new.name[0]) {
5162 string_copy(opt_file, stage_status.new.name);
5168 return pager_request(view, request, line);
5174 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5175 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5177 /* Check whether the staged entry still exists, and close the
5178 * stage view if it doesn't. */
5179 if (!status_exists(&stage_status, stage_line_type)) {
5180 status_restore(VIEW(REQ_VIEW_STATUS));
5181 return REQ_VIEW_CLOSE;
5184 if (stage_line_type == LINE_STAT_UNTRACKED) {
5185 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5186 report("Cannot display a directory");
5190 if (!prepare_update_file(view, stage_status.new.name)) {
5191 report("Failed to open file: %s", strerror(errno));
5195 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5200 static struct view_ops stage_ops = {
5217 char id[SIZEOF_REV]; /* SHA1 ID. */
5218 char title[128]; /* First line of the commit message. */
5219 char author[75]; /* Author of the commit. */
5220 struct tm time; /* Date from the author ident. */
5221 struct ref **refs; /* Repository references. */
5222 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5223 size_t graph_size; /* The width of the graph array. */
5224 bool has_parents; /* Rewritten --parents seen. */
5227 /* Size of rev graph with no "padding" columns */
5228 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5231 struct rev_graph *prev, *next, *parents;
5232 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5234 struct commit *commit;
5236 unsigned int boundary:1;
5239 /* Parents of the commit being visualized. */
5240 static struct rev_graph graph_parents[4];
5242 /* The current stack of revisions on the graph. */
5243 static struct rev_graph graph_stacks[4] = {
5244 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5245 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5246 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5247 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5251 graph_parent_is_merge(struct rev_graph *graph)
5253 return graph->parents->size > 1;
5257 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5259 struct commit *commit = graph->commit;
5261 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5262 commit->graph[commit->graph_size++] = symbol;
5266 clear_rev_graph(struct rev_graph *graph)
5268 graph->boundary = 0;
5269 graph->size = graph->pos = 0;
5270 graph->commit = NULL;
5271 memset(graph->parents, 0, sizeof(*graph->parents));
5275 done_rev_graph(struct rev_graph *graph)
5277 if (graph_parent_is_merge(graph) &&
5278 graph->pos < graph->size - 1 &&
5279 graph->next->size == graph->size + graph->parents->size - 1) {
5280 size_t i = graph->pos + graph->parents->size - 1;
5282 graph->commit->graph_size = i * 2;
5283 while (i < graph->next->size - 1) {
5284 append_to_rev_graph(graph, ' ');
5285 append_to_rev_graph(graph, '\\');
5290 clear_rev_graph(graph);
5294 push_rev_graph(struct rev_graph *graph, const char *parent)
5298 /* "Collapse" duplicate parents lines.
5300 * FIXME: This needs to also update update the drawn graph but
5301 * for now it just serves as a method for pruning graph lines. */
5302 for (i = 0; i < graph->size; i++)
5303 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5306 if (graph->size < SIZEOF_REVITEMS) {
5307 string_copy_rev(graph->rev[graph->size++], parent);
5312 get_rev_graph_symbol(struct rev_graph *graph)
5316 if (graph->boundary)
5317 symbol = REVGRAPH_BOUND;
5318 else if (graph->parents->size == 0)
5319 symbol = REVGRAPH_INIT;
5320 else if (graph_parent_is_merge(graph))
5321 symbol = REVGRAPH_MERGE;
5322 else if (graph->pos >= graph->size)
5323 symbol = REVGRAPH_BRANCH;
5325 symbol = REVGRAPH_COMMIT;
5331 draw_rev_graph(struct rev_graph *graph)
5334 chtype separator, line;
5336 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5337 static struct rev_filler fillers[] = {
5343 chtype symbol = get_rev_graph_symbol(graph);
5344 struct rev_filler *filler;
5347 if (opt_line_graphics)
5348 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5350 filler = &fillers[DEFAULT];
5352 for (i = 0; i < graph->pos; i++) {
5353 append_to_rev_graph(graph, filler->line);
5354 if (graph_parent_is_merge(graph->prev) &&
5355 graph->prev->pos == i)
5356 filler = &fillers[RSHARP];
5358 append_to_rev_graph(graph, filler->separator);
5361 /* Place the symbol for this revision. */
5362 append_to_rev_graph(graph, symbol);
5364 if (graph->prev->size > graph->size)
5365 filler = &fillers[RDIAG];
5367 filler = &fillers[DEFAULT];
5371 for (; i < graph->size; i++) {
5372 append_to_rev_graph(graph, filler->separator);
5373 append_to_rev_graph(graph, filler->line);
5374 if (graph_parent_is_merge(graph->prev) &&
5375 i < graph->prev->pos + graph->parents->size)
5376 filler = &fillers[RSHARP];
5377 if (graph->prev->size > graph->size)
5378 filler = &fillers[LDIAG];
5381 if (graph->prev->size > graph->size) {
5382 append_to_rev_graph(graph, filler->separator);
5383 if (filler->line != ' ')
5384 append_to_rev_graph(graph, filler->line);
5388 /* Prepare the next rev graph */
5390 prepare_rev_graph(struct rev_graph *graph)
5394 /* First, traverse all lines of revisions up to the active one. */
5395 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5396 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5399 push_rev_graph(graph->next, graph->rev[graph->pos]);
5402 /* Interleave the new revision parent(s). */
5403 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5404 push_rev_graph(graph->next, graph->parents->rev[i]);
5406 /* Lastly, put any remaining revisions. */
5407 for (i = graph->pos + 1; i < graph->size; i++)
5408 push_rev_graph(graph->next, graph->rev[i]);
5412 update_rev_graph(struct view *view, struct rev_graph *graph)
5414 /* If this is the finalizing update ... */
5416 prepare_rev_graph(graph);
5418 /* Graph visualization needs a one rev look-ahead,
5419 * so the first update doesn't visualize anything. */
5420 if (!graph->prev->commit)
5423 if (view->lines > 2)
5424 view->line[view->lines - 3].dirty = 1;
5425 if (view->lines > 1)
5426 view->line[view->lines - 2].dirty = 1;
5427 draw_rev_graph(graph->prev);
5428 done_rev_graph(graph->prev->prev);
5436 static const char *main_argv[SIZEOF_ARG] = {
5437 "git", "log", "--no-color", "--pretty=raw", "--parents",
5438 "--topo-order", "%(head)", NULL
5442 main_draw(struct view *view, struct line *line, unsigned int lineno)
5444 struct commit *commit = line->data;
5446 if (!*commit->author)
5449 if (opt_date && draw_date(view, &commit->time))
5453 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5456 if (opt_rev_graph && commit->graph_size &&
5457 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5460 if (opt_show_refs && commit->refs) {
5464 enum line_type type;
5466 if (commit->refs[i]->head)
5467 type = LINE_MAIN_HEAD;
5468 else if (commit->refs[i]->ltag)
5469 type = LINE_MAIN_LOCAL_TAG;
5470 else if (commit->refs[i]->tag)
5471 type = LINE_MAIN_TAG;
5472 else if (commit->refs[i]->tracked)
5473 type = LINE_MAIN_TRACKED;
5474 else if (commit->refs[i]->remote)
5475 type = LINE_MAIN_REMOTE;
5477 type = LINE_MAIN_REF;
5479 if (draw_text(view, type, "[", TRUE) ||
5480 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5481 draw_text(view, type, "]", TRUE))
5484 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5486 } while (commit->refs[i++]->next);
5489 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5493 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5495 main_read(struct view *view, char *line)
5497 static struct rev_graph *graph = graph_stacks;
5498 enum line_type type;
5499 struct commit *commit;
5504 if (!view->lines && !view->parent)
5505 die("No revisions match the given arguments.");
5506 if (view->lines > 0) {
5507 commit = view->line[view->lines - 1].data;
5508 view->line[view->lines - 1].dirty = 1;
5509 if (!*commit->author) {
5512 graph->commit = NULL;
5515 update_rev_graph(view, graph);
5517 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5518 clear_rev_graph(&graph_stacks[i]);
5522 type = get_line_type(line);
5523 if (type == LINE_COMMIT) {
5524 commit = calloc(1, sizeof(struct commit));
5528 line += STRING_SIZE("commit ");
5530 graph->boundary = 1;
5534 string_copy_rev(commit->id, line);
5535 commit->refs = get_refs(commit->id);
5536 graph->commit = commit;
5537 add_line_data(view, commit, LINE_MAIN_COMMIT);
5539 while ((line = strchr(line, ' '))) {
5541 push_rev_graph(graph->parents, line);
5542 commit->has_parents = TRUE;
5549 commit = view->line[view->lines - 1].data;
5553 if (commit->has_parents)
5555 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5560 /* Parse author lines where the name may be empty:
5561 * author <email@address.tld> 1138474660 +0100
5563 char *ident = line + STRING_SIZE("author ");
5564 char *nameend = strchr(ident, '<');
5565 char *emailend = strchr(ident, '>');
5567 if (!nameend || !emailend)
5570 update_rev_graph(view, graph);
5571 graph = graph->next;
5573 *nameend = *emailend = 0;
5574 ident = chomp_string(ident);
5576 ident = chomp_string(nameend + 1);
5581 string_ncopy(commit->author, ident, strlen(ident));
5582 view->line[view->lines - 1].dirty = 1;
5584 /* Parse epoch and timezone */
5585 if (emailend[1] == ' ') {
5586 char *secs = emailend + 2;
5587 char *zone = strchr(secs, ' ');
5588 time_t time = (time_t) atol(secs);
5590 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5594 tz = ('0' - zone[1]) * 60 * 60 * 10;
5595 tz += ('0' - zone[2]) * 60 * 60;
5596 tz += ('0' - zone[3]) * 60;
5597 tz += ('0' - zone[4]) * 60;
5605 gmtime_r(&time, &commit->time);
5610 /* Fill in the commit title if it has not already been set. */
5611 if (commit->title[0])
5614 /* Require titles to start with a non-space character at the
5615 * offset used by git log. */
5616 if (strncmp(line, " ", 4))
5619 /* Well, if the title starts with a whitespace character,
5620 * try to be forgiving. Otherwise we end up with no title. */
5621 while (isspace(*line))
5625 /* FIXME: More graceful handling of titles; append "..." to
5626 * shortened titles, etc. */
5628 string_ncopy(commit->title, line, strlen(line));
5629 view->line[view->lines - 1].dirty = 1;
5636 main_request(struct view *view, enum request request, struct line *line)
5638 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5642 open_view(view, REQ_VIEW_DIFF, flags);
5646 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5656 grep_refs(struct ref **refs, regex_t *regex)
5664 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5666 } while (refs[i++]->next);
5672 main_grep(struct view *view, struct line *line)
5674 struct commit *commit = line->data;
5675 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5676 char buf[DATE_COLS + 1];
5679 for (state = S_TITLE; state < S_END; state++) {
5683 case S_TITLE: text = commit->title; break;
5687 text = commit->author;
5692 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5699 if (grep_refs(commit->refs, view->regex) == TRUE)
5706 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5714 main_select(struct view *view, struct line *line)
5716 struct commit *commit = line->data;
5718 string_copy_rev(view->ref, commit->id);
5719 string_copy_rev(ref_commit, view->ref);
5722 static struct view_ops main_ops = {
5735 * Unicode / UTF-8 handling
5737 * NOTE: Much of the following code for dealing with unicode is derived from
5738 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5739 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5742 /* I've (over)annotated a lot of code snippets because I am not entirely
5743 * confident that the approach taken by this small UTF-8 interface is correct.
5747 unicode_width(unsigned long c)
5750 (c <= 0x115f /* Hangul Jamo */
5753 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5755 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5756 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5757 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5758 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5759 || (c >= 0xffe0 && c <= 0xffe6)
5760 || (c >= 0x20000 && c <= 0x2fffd)
5761 || (c >= 0x30000 && c <= 0x3fffd)))
5765 return opt_tab_size;
5770 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5771 * Illegal bytes are set one. */
5772 static const unsigned char utf8_bytes[256] = {
5773 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,
5774 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,
5775 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,
5776 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,
5777 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,
5778 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,
5779 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,
5780 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,
5783 /* Decode UTF-8 multi-byte representation into a unicode character. */
5784 static inline unsigned long
5785 utf8_to_unicode(const char *string, size_t length)
5787 unsigned long unicode;
5791 unicode = string[0];
5794 unicode = (string[0] & 0x1f) << 6;
5795 unicode += (string[1] & 0x3f);
5798 unicode = (string[0] & 0x0f) << 12;
5799 unicode += ((string[1] & 0x3f) << 6);
5800 unicode += (string[2] & 0x3f);
5803 unicode = (string[0] & 0x0f) << 18;
5804 unicode += ((string[1] & 0x3f) << 12);
5805 unicode += ((string[2] & 0x3f) << 6);
5806 unicode += (string[3] & 0x3f);
5809 unicode = (string[0] & 0x0f) << 24;
5810 unicode += ((string[1] & 0x3f) << 18);
5811 unicode += ((string[2] & 0x3f) << 12);
5812 unicode += ((string[3] & 0x3f) << 6);
5813 unicode += (string[4] & 0x3f);
5816 unicode = (string[0] & 0x01) << 30;
5817 unicode += ((string[1] & 0x3f) << 24);
5818 unicode += ((string[2] & 0x3f) << 18);
5819 unicode += ((string[3] & 0x3f) << 12);
5820 unicode += ((string[4] & 0x3f) << 6);
5821 unicode += (string[5] & 0x3f);
5824 die("Invalid unicode length");
5827 /* Invalid characters could return the special 0xfffd value but NUL
5828 * should be just as good. */
5829 return unicode > 0xffff ? 0 : unicode;
5832 /* Calculates how much of string can be shown within the given maximum width
5833 * and sets trimmed parameter to non-zero value if all of string could not be
5834 * shown. If the reserve flag is TRUE, it will reserve at least one
5835 * trailing character, which can be useful when drawing a delimiter.
5837 * Returns the number of bytes to output from string to satisfy max_width. */
5839 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5841 const char *start = string;
5842 const char *end = strchr(string, '\0');
5843 unsigned char last_bytes = 0;
5844 size_t last_ucwidth = 0;
5849 while (string < end) {
5850 int c = *(unsigned char *) string;
5851 unsigned char bytes = utf8_bytes[c];
5853 unsigned long unicode;
5855 if (string + bytes > end)
5858 /* Change representation to figure out whether
5859 * it is a single- or double-width character. */
5861 unicode = utf8_to_unicode(string, bytes);
5862 /* FIXME: Graceful handling of invalid unicode character. */
5866 ucwidth = unicode_width(unicode);
5868 if (*width > max_width) {
5871 if (reserve && *width == max_width) {
5872 string -= last_bytes;
5873 *width -= last_ucwidth;
5880 last_ucwidth = ucwidth;
5883 return string - start;
5891 /* Whether or not the curses interface has been initialized. */
5892 static bool cursed = FALSE;
5894 /* The status window is used for polling keystrokes. */
5895 static WINDOW *status_win;
5897 static bool status_empty = TRUE;
5899 /* Update status and title window. */
5901 report(const char *msg, ...)
5903 struct view *view = display[current_view];
5909 char buf[SIZEOF_STR];
5912 va_start(args, msg);
5913 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5914 buf[sizeof(buf) - 1] = 0;
5915 buf[sizeof(buf) - 2] = '.';
5916 buf[sizeof(buf) - 3] = '.';
5917 buf[sizeof(buf) - 4] = '.';
5923 if (!status_empty || *msg) {
5926 va_start(args, msg);
5928 wmove(status_win, 0, 0);
5930 vwprintw(status_win, msg, args);
5931 status_empty = FALSE;
5933 status_empty = TRUE;
5935 wclrtoeol(status_win);
5936 wrefresh(status_win);
5941 update_view_title(view);
5942 update_display_cursor(view);
5945 /* Controls when nodelay should be in effect when polling user input. */
5947 set_nonblocking_input(bool loading)
5949 static unsigned int loading_views;
5951 if ((loading == FALSE && loading_views-- == 1) ||
5952 (loading == TRUE && loading_views++ == 0))
5953 nodelay(status_win, loading);
5961 /* Initialize the curses library */
5962 if (isatty(STDIN_FILENO)) {
5963 cursed = !!initscr();
5966 /* Leave stdin and stdout alone when acting as a pager. */
5967 opt_tty = fopen("/dev/tty", "r+");
5969 die("Failed to open /dev/tty");
5970 cursed = !!newterm(NULL, opt_tty, opt_tty);
5974 die("Failed to initialize curses");
5976 nonl(); /* Tell curses not to do NL->CR/NL on output */
5977 cbreak(); /* Take input chars one at a time, no wait for \n */
5978 noecho(); /* Don't echo input */
5979 leaveok(stdscr, TRUE);
5984 getmaxyx(stdscr, y, x);
5985 status_win = newwin(1, 0, y - 1, 0);
5987 die("Failed to create status window");
5989 /* Enable keyboard mapping */
5990 keypad(status_win, TRUE);
5991 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5993 TABSIZE = opt_tab_size;
5994 if (opt_line_graphics) {
5995 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6000 get_input(bool prompting)
6009 foreach_view (view, i)
6012 /* Refresh, accept single keystroke of input */
6013 key = wgetch(status_win);
6015 /* wgetch() with nodelay() enabled returns ERR when
6016 * there's no input. */
6020 } else if (key == KEY_RESIZE) {
6023 getmaxyx(stdscr, height, width);
6025 /* Resize the status view and let the view driver take
6026 * care of resizing the displayed views. */
6028 redraw_display(TRUE);
6029 wresize(status_win, 1, width);
6030 mvwin(status_win, height - 1, 0);
6031 wrefresh(status_win);
6041 prompt_yesno(const char *prompt)
6043 enum { WAIT, STOP, CANCEL } status = WAIT;
6044 bool answer = FALSE;
6046 while (status == WAIT) {
6049 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
6050 wclrtoeol(status_win);
6052 key = get_input(TRUE);
6073 /* Clear the status window */
6074 status_empty = FALSE;
6081 read_prompt(const char *prompt)
6083 enum { READING, STOP, CANCEL } status = READING;
6084 static char buf[SIZEOF_STR];
6087 while (status == READING) {
6090 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6091 wclrtoeol(status_win);
6093 key = get_input(TRUE);
6098 status = pos ? STOP : CANCEL;
6113 if (pos >= sizeof(buf)) {
6114 report("Input string too long");
6119 buf[pos++] = (char) key;
6123 /* Clear the status window */
6124 status_empty = FALSE;
6127 if (status == CANCEL)
6136 * Repository properties
6140 git_properties(const char **argv, const char *separators,
6141 int (*read_property)(char *, size_t, char *, size_t))
6145 if (init_io_rd(&io, argv, NULL, FORMAT_NONE))
6146 return read_properties(&io, separators, read_property);
6150 static struct ref *refs = NULL;
6151 static size_t refs_alloc = 0;
6152 static size_t refs_size = 0;
6154 /* Id <-> ref store */
6155 static struct ref ***id_refs = NULL;
6156 static size_t id_refs_alloc = 0;
6157 static size_t id_refs_size = 0;
6160 compare_refs(const void *ref1_, const void *ref2_)
6162 const struct ref *ref1 = *(const struct ref **)ref1_;
6163 const struct ref *ref2 = *(const struct ref **)ref2_;
6165 if (ref1->tag != ref2->tag)
6166 return ref2->tag - ref1->tag;
6167 if (ref1->ltag != ref2->ltag)
6168 return ref2->ltag - ref2->ltag;
6169 if (ref1->head != ref2->head)
6170 return ref2->head - ref1->head;
6171 if (ref1->tracked != ref2->tracked)
6172 return ref2->tracked - ref1->tracked;
6173 if (ref1->remote != ref2->remote)
6174 return ref2->remote - ref1->remote;
6175 return strcmp(ref1->name, ref2->name);
6178 static struct ref **
6179 get_refs(const char *id)
6181 struct ref ***tmp_id_refs;
6182 struct ref **ref_list = NULL;
6183 size_t ref_list_alloc = 0;
6184 size_t ref_list_size = 0;
6187 for (i = 0; i < id_refs_size; i++)
6188 if (!strcmp(id, id_refs[i][0]->id))
6191 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6196 id_refs = tmp_id_refs;
6198 for (i = 0; i < refs_size; i++) {
6201 if (strcmp(id, refs[i].id))
6204 tmp = realloc_items(ref_list, &ref_list_alloc,
6205 ref_list_size + 1, sizeof(*ref_list));
6213 ref_list[ref_list_size] = &refs[i];
6214 /* XXX: The properties of the commit chains ensures that we can
6215 * safely modify the shared ref. The repo references will
6216 * always be similar for the same id. */
6217 ref_list[ref_list_size]->next = 1;
6223 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6224 ref_list[ref_list_size - 1]->next = 0;
6225 id_refs[id_refs_size++] = ref_list;
6232 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6237 bool remote = FALSE;
6238 bool tracked = FALSE;
6239 bool check_replace = FALSE;
6242 if (!prefixcmp(name, "refs/tags/")) {
6243 if (!suffixcmp(name, namelen, "^{}")) {
6246 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6247 check_replace = TRUE;
6253 namelen -= STRING_SIZE("refs/tags/");
6254 name += STRING_SIZE("refs/tags/");
6256 } else if (!prefixcmp(name, "refs/remotes/")) {
6258 namelen -= STRING_SIZE("refs/remotes/");
6259 name += STRING_SIZE("refs/remotes/");
6260 tracked = !strcmp(opt_remote, name);
6262 } else if (!prefixcmp(name, "refs/heads/")) {
6263 namelen -= STRING_SIZE("refs/heads/");
6264 name += STRING_SIZE("refs/heads/");
6265 head = !strncmp(opt_head, name, namelen);
6267 } else if (!strcmp(name, "HEAD")) {
6268 string_ncopy(opt_head_rev, id, idlen);
6272 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6273 /* it's an annotated tag, replace the previous sha1 with the
6274 * resolved commit id; relies on the fact git-ls-remote lists
6275 * the commit id of an annotated tag right before the commit id
6277 refs[refs_size - 1].ltag = ltag;
6278 string_copy_rev(refs[refs_size - 1].id, id);
6282 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6286 ref = &refs[refs_size++];
6287 ref->name = malloc(namelen + 1);
6291 strncpy(ref->name, name, namelen);
6292 ref->name[namelen] = 0;
6296 ref->remote = remote;
6297 ref->tracked = tracked;
6298 string_copy_rev(ref->id, id);
6306 static const char *ls_remote_argv[SIZEOF_ARG] = {
6307 "git", "ls-remote", ".", NULL
6309 static bool init = FALSE;
6312 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6319 while (refs_size > 0)
6320 free(refs[--refs_size].name);
6321 while (id_refs_size > 0)
6322 free(id_refs[--id_refs_size]);
6324 return git_properties(ls_remote_argv, "\t", read_ref);
6328 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6330 if (!strcmp(name, "i18n.commitencoding"))
6331 string_ncopy(opt_encoding, value, valuelen);
6333 if (!strcmp(name, "core.editor"))
6334 string_ncopy(opt_editor, value, valuelen);
6336 /* branch.<head>.remote */
6338 !strncmp(name, "branch.", 7) &&
6339 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6340 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6341 string_ncopy(opt_remote, value, valuelen);
6343 if (*opt_head && *opt_remote &&
6344 !strncmp(name, "branch.", 7) &&
6345 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6346 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6347 size_t from = strlen(opt_remote);
6349 if (!prefixcmp(value, "refs/heads/")) {
6350 value += STRING_SIZE("refs/heads/");
6351 valuelen -= STRING_SIZE("refs/heads/");
6354 if (!string_format_from(opt_remote, &from, "/%s", value))
6362 load_git_config(void)
6364 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6366 return git_properties(config_list_argv, "=", read_repo_config_option);
6370 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6372 if (!opt_git_dir[0]) {
6373 string_ncopy(opt_git_dir, name, namelen);
6375 } else if (opt_is_inside_work_tree == -1) {
6376 /* This can be 3 different values depending on the
6377 * version of git being used. If git-rev-parse does not
6378 * understand --is-inside-work-tree it will simply echo
6379 * the option else either "true" or "false" is printed.
6380 * Default to true for the unknown case. */
6381 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6383 string_ncopy(opt_cdup, name, namelen);
6390 load_repo_info(void)
6392 const char *head_argv[] = {
6393 "git", "symbolic-ref", "HEAD", NULL
6395 const char *rev_parse_argv[] = {
6396 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6400 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6401 chomp_string(opt_head);
6402 if (!prefixcmp(opt_head, "refs/heads/")) {
6403 char *offset = opt_head + STRING_SIZE("refs/heads/");
6405 memmove(opt_head, offset, strlen(offset) + 1);
6409 return git_properties(rev_parse_argv, "=", read_repo_info);
6413 read_properties(struct io *io, const char *separators,
6414 int (*read_property)(char *, size_t, char *, size_t))
6422 while (state == OK && (name = io_get(io, '\n', TRUE))) {
6427 name = chomp_string(name);
6428 namelen = strcspn(name, separators);
6430 if (name[namelen]) {
6432 value = chomp_string(name + namelen + 1);
6433 valuelen = strlen(value);
6440 state = read_property(name, namelen, value, valuelen);
6443 if (state != ERR && io_error(io))
6455 static void __NORETURN
6458 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6464 static void __NORETURN
6465 die(const char *err, ...)
6471 va_start(args, err);
6472 fputs("tig: ", stderr);
6473 vfprintf(stderr, err, args);
6474 fputs("\n", stderr);
6481 warn(const char *msg, ...)
6485 va_start(args, msg);
6486 fputs("tig warning: ", stderr);
6487 vfprintf(stderr, msg, args);
6488 fputs("\n", stderr);
6493 main(int argc, const char *argv[])
6495 const char **run_argv = NULL;
6497 enum request request;
6500 signal(SIGINT, quit);
6502 if (setlocale(LC_ALL, "")) {
6503 char *codeset = nl_langinfo(CODESET);
6505 string_ncopy(opt_codeset, codeset, strlen(codeset));
6508 if (load_repo_info() == ERR)
6509 die("Failed to load repo info.");
6511 if (load_options() == ERR)
6512 die("Failed to load user config.");
6514 if (load_git_config() == ERR)
6515 die("Failed to load repo config.");
6517 request = parse_options(argc, argv, &run_argv);
6518 if (request == REQ_NONE)
6521 /* Require a git repository unless when running in pager mode. */
6522 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6523 die("Not a git repository");
6525 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6528 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6529 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6530 if (opt_iconv == ICONV_NONE)
6531 die("Failed to initialize character set conversion");
6534 if (load_refs() == ERR)
6535 die("Failed to load refs.");
6537 foreach_view (view, i)
6538 argv_from_env(view->ops->argv, view->cmd_env);
6542 if (request == REQ_VIEW_PAGER || run_argv) {
6543 if (request == REQ_VIEW_PAGER)
6544 io_open(&VIEW(request)->io, "");
6545 else if (!prepare_update(VIEW(request), run_argv, NULL, FORMAT_NONE))
6546 die("Failed to format arguments");
6547 open_view(NULL, request, OPEN_PREPARED);
6551 while (view_driver(display[current_view], request)) {
6552 int key = get_input(FALSE);
6554 view = display[current_view];
6555 request = get_keybinding(view->keymap, key);
6557 /* Some low-level request handling. This keeps access to
6558 * status_win restricted. */
6562 char *cmd = read_prompt(":");
6565 struct view *next = VIEW(REQ_VIEW_PAGER);
6566 const char *argv[SIZEOF_ARG] = { "git" };
6569 /* When running random commands, initially show the
6570 * command in the title. However, it maybe later be
6571 * overwritten if a commit line is selected. */
6572 string_ncopy(next->ref, cmd, strlen(cmd));
6574 if (!argv_from_string(argv, &argc, cmd)) {
6575 report("Too many arguments");
6576 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6577 report("Failed to format command");
6579 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6587 case REQ_SEARCH_BACK:
6589 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6590 char *search = read_prompt(prompt);
6593 string_ncopy(opt_search, search, strlen(search));