1 /* Copyright (c) 2006-2009 Jonas Fonseca <fonseca@diku.dk>
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License as
5 * published by the Free Software Foundation; either version 2 of
6 * the License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
19 #define TIG_VERSION "unknown-version"
34 #include <sys/types.h>
37 #include <sys/select.h>
48 /* ncurses(3): Must be defined to have extended wide-character functions. */
49 #define _XOPEN_SOURCE_EXTENDED
51 #ifdef HAVE_NCURSESW_NCURSES_H
52 #include <ncursesw/ncurses.h>
54 #ifdef HAVE_NCURSES_NCURSES_H
55 #include <ncurses/ncurses.h>
62 #define __NORETURN __attribute__((__noreturn__))
67 static void __NORETURN die(const char *err, ...);
68 static void warn(const char *msg, ...);
69 static void report(const char *msg, ...);
70 static void set_nonblocking_input(bool loading);
71 static size_t utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve);
72 static bool prompt_yesno(const char *prompt);
73 static int load_refs(void);
75 #define ABS(x) ((x) >= 0 ? (x) : -(x))
76 #define MIN(x, y) ((x) < (y) ? (x) : (y))
78 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
79 #define STRING_SIZE(x) (sizeof(x) - 1)
81 #define SIZEOF_STR 1024 /* Default string size. */
82 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
83 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL. */
84 #define SIZEOF_ARG 32 /* Default argument array size. */
88 #define REVGRAPH_INIT 'I'
89 #define REVGRAPH_MERGE 'M'
90 #define REVGRAPH_BRANCH '+'
91 #define REVGRAPH_COMMIT '*'
92 #define REVGRAPH_BOUND '^'
94 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
96 /* This color name can be used to refer to the default term colors. */
97 #define COLOR_DEFAULT (-1)
99 #define ICONV_NONE ((iconv_t) -1)
101 #define ICONV_CONST /* nothing */
104 /* The format and size of the date column in the main view. */
105 #define DATE_FORMAT "%Y-%m-%d %H:%M"
106 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
108 #define AUTHOR_COLS 20
111 /* The default interval between line numbers. */
112 #define NUMBER_INTERVAL 5
116 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
118 #define NULL_ID "0000000000000000000000000000000000000000"
121 #define GIT_CONFIG "config"
124 /* Some ascii-shorthands fitted into the ncurses namespace. */
126 #define KEY_RETURN '\r'
131 char *name; /* Ref name; tag or head names are shortened. */
132 char id[SIZEOF_REV]; /* Commit SHA1 ID */
133 unsigned int head:1; /* Is it the current HEAD? */
134 unsigned int tag:1; /* Is it a tag? */
135 unsigned int ltag:1; /* If so, is the tag local? */
136 unsigned int remote:1; /* Is it a remote ref? */
137 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
138 unsigned int next:1; /* For ref lists: are there more refs? */
141 static struct ref **get_refs(const char *id);
144 FORMAT_ALL, /* Perform replacement in all arguments. */
145 FORMAT_DASH, /* Perform replacement up until "--". */
146 FORMAT_NONE /* No replacement should be performed. */
149 static bool format_argv(const char *dst[], const char *src[], enum format_flags flags);
158 set_from_int_map(struct int_map *map, size_t map_size,
159 int *value, const char *name, int namelen)
164 for (i = 0; i < map_size; i++)
165 if (namelen == map[i].namelen &&
166 !strncasecmp(name, map[i].name, namelen)) {
167 *value = map[i].value;
180 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
182 if (srclen > dstlen - 1)
185 strncpy(dst, src, srclen);
189 /* Shorthands for safely copying into a fixed buffer. */
191 #define string_copy(dst, src) \
192 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
194 #define string_ncopy(dst, src, srclen) \
195 string_ncopy_do(dst, sizeof(dst), src, srclen)
197 #define string_copy_rev(dst, src) \
198 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
200 #define string_add(dst, from, src) \
201 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
204 chomp_string(char *name)
208 while (isspace(*name))
211 namelen = strlen(name) - 1;
212 while (namelen > 0 && isspace(name[namelen]))
219 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
222 size_t pos = bufpos ? *bufpos : 0;
225 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
231 return pos >= bufsize ? FALSE : TRUE;
234 #define string_format(buf, fmt, args...) \
235 string_nformat(buf, sizeof(buf), NULL, fmt, args)
237 #define string_format_from(buf, from, fmt, args...) \
238 string_nformat(buf, sizeof(buf), from, fmt, args)
241 string_enum_compare(const char *str1, const char *str2, int len)
245 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
247 /* Diff-Header == DIFF_HEADER */
248 for (i = 0; i < len; i++) {
249 if (toupper(str1[i]) == toupper(str2[i]))
252 if (string_enum_sep(str1[i]) &&
253 string_enum_sep(str2[i]))
256 return str1[i] - str2[i];
262 #define prefixcmp(str1, str2) \
263 strncmp(str1, str2, STRING_SIZE(str2))
266 suffixcmp(const char *str, int slen, const char *suffix)
268 size_t len = slen >= 0 ? slen : strlen(str);
269 size_t suffixlen = strlen(suffix);
271 return suffixlen < len ? strcmp(str + len - suffixlen, suffix) : -1;
276 argv_from_string(const char *argv[SIZEOF_ARG], int *argc, char *cmd)
280 while (*cmd && *argc < SIZEOF_ARG && (valuelen = strcspn(cmd, " \t"))) {
281 bool advance = cmd[valuelen] != 0;
284 argv[(*argc)++] = chomp_string(cmd);
285 cmd += valuelen + advance;
288 if (*argc < SIZEOF_ARG)
290 return *argc < SIZEOF_ARG;
294 argv_from_env(const char **argv, const char *name)
296 char *env = argv ? getenv(name) : NULL;
301 if (env && !argv_from_string(argv, &argc, env))
302 die("Too many arguments in the `%s` environment variable", name);
307 * Executing external commands.
311 IO_FD, /* File descriptor based IO. */
312 IO_BG, /* Execute command in the background. */
313 IO_FG, /* Execute command with same std{in,out,err}. */
314 IO_RD, /* Read only fork+exec IO. */
315 IO_WR, /* Write only fork+exec IO. */
316 IO_AP, /* Append fork+exec output to file. */
320 enum io_type type; /* The requested type of pipe. */
321 const char *dir; /* Directory from which to execute. */
322 pid_t pid; /* Pipe for reading or writing. */
323 int pipe; /* Pipe end for reading or writing. */
324 int error; /* Error status. */
325 const char *argv[SIZEOF_ARG]; /* Shell command arguments. */
326 char *buf; /* Read buffer. */
327 size_t bufalloc; /* Allocated buffer size. */
328 size_t bufsize; /* Buffer content size. */
329 char *bufpos; /* Current buffer position. */
330 unsigned int eof:1; /* Has end of file been reached. */
334 reset_io(struct io *io)
338 io->buf = io->bufpos = NULL;
339 io->bufalloc = io->bufsize = 0;
345 init_io(struct io *io, const char *dir, enum io_type type)
353 init_io_rd(struct io *io, const char *argv[], const char *dir,
354 enum format_flags flags)
356 init_io(io, dir, IO_RD);
357 return format_argv(io->argv, argv, flags);
361 io_open(struct io *io, const char *name)
363 init_io(io, NULL, IO_FD);
364 io->pipe = *name ? open(name, O_RDONLY) : STDIN_FILENO;
365 return io->pipe != -1;
369 kill_io(struct io *io)
371 return kill(io->pid, SIGKILL) != -1;
375 done_io(struct io *io)
386 pid_t waiting = waitpid(pid, &status, 0);
391 report("waitpid failed (%s)", strerror(errno));
395 return waiting == pid &&
396 !WIFSIGNALED(status) &&
398 !WEXITSTATUS(status);
405 start_io(struct io *io)
407 int pipefds[2] = { -1, -1 };
409 if (io->type == IO_FD)
412 if ((io->type == IO_RD || io->type == IO_WR) &&
415 else if (io->type == IO_AP)
416 pipefds[1] = io->pipe;
418 if ((io->pid = fork())) {
419 if (pipefds[!(io->type == IO_WR)] != -1)
420 close(pipefds[!(io->type == IO_WR)]);
422 io->pipe = pipefds[!!(io->type == IO_WR)];
427 if (io->type != IO_FG) {
428 int devnull = open("/dev/null", O_RDWR);
429 int readfd = io->type == IO_WR ? pipefds[0] : devnull;
430 int writefd = (io->type == IO_RD || io->type == IO_AP)
431 ? pipefds[1] : devnull;
433 dup2(readfd, STDIN_FILENO);
434 dup2(writefd, STDOUT_FILENO);
435 dup2(devnull, STDERR_FILENO);
438 if (pipefds[0] != -1)
440 if (pipefds[1] != -1)
444 if (io->dir && *io->dir && chdir(io->dir) == -1)
445 die("Failed to change directory: %s", strerror(errno));
447 execvp(io->argv[0], (char *const*) io->argv);
448 die("Failed to execute program: %s", strerror(errno));
451 if (pipefds[!!(io->type == IO_WR)] != -1)
452 close(pipefds[!!(io->type == IO_WR)]);
457 run_io(struct io *io, const char **argv, const char *dir, enum io_type type)
459 init_io(io, dir, type);
460 if (!format_argv(io->argv, argv, FORMAT_NONE))
466 run_io_do(struct io *io)
468 return start_io(io) && done_io(io);
472 run_io_bg(const char **argv)
476 init_io(&io, NULL, IO_BG);
477 if (!format_argv(io.argv, argv, FORMAT_NONE))
479 return run_io_do(&io);
483 run_io_fg(const char **argv, const char *dir)
487 init_io(&io, dir, IO_FG);
488 if (!format_argv(io.argv, argv, FORMAT_NONE))
490 return run_io_do(&io);
494 run_io_append(const char **argv, enum format_flags flags, int fd)
498 init_io(&io, NULL, IO_AP);
500 if (format_argv(io.argv, argv, flags))
501 return run_io_do(&io);
507 run_io_rd(struct io *io, const char **argv, enum format_flags flags)
509 return init_io_rd(io, argv, NULL, flags) && start_io(io);
513 io_eof(struct io *io)
519 io_error(struct io *io)
525 io_strerror(struct io *io)
527 return strerror(io->error);
531 io_can_read(struct io *io)
533 struct timeval tv = { 0, 500 };
537 FD_SET(io->pipe, &fds);
539 return select(io->pipe + 1, &fds, NULL, NULL, &tv) > 0;
543 io_read(struct io *io, void *buf, size_t bufsize)
546 ssize_t readsize = read(io->pipe, buf, bufsize);
548 if (readsize < 0 && (errno == EAGAIN || errno == EINTR))
550 else if (readsize == -1)
552 else if (readsize == 0)
559 io_get(struct io *io, int c, bool can_read)
565 io->buf = io->bufpos = malloc(BUFSIZ);
568 io->bufalloc = BUFSIZ;
573 if (io->bufsize > 0) {
574 eol = memchr(io->bufpos, c, io->bufsize);
576 char *line = io->bufpos;
579 io->bufpos = eol + 1;
580 io->bufsize -= io->bufpos - line;
587 io->bufpos[io->bufsize] = 0;
597 if (io->bufsize > 0 && io->bufpos > io->buf)
598 memmove(io->buf, io->bufpos, io->bufsize);
600 io->bufpos = io->buf;
601 readsize = io_read(io, io->buf + io->bufsize, io->bufalloc - io->bufsize);
604 io->bufsize += readsize;
609 io_write(struct io *io, const void *buf, size_t bufsize)
613 while (!io_error(io) && written < bufsize) {
616 size = write(io->pipe, buf + written, bufsize - written);
617 if (size < 0 && (errno == EAGAIN || errno == EINTR))
625 return written == bufsize;
629 run_io_buf(const char **argv, char buf[], size_t bufsize)
634 if (!run_io_rd(&io, argv, FORMAT_NONE))
637 io.buf = io.bufpos = buf;
638 io.bufalloc = bufsize;
639 error = !io_get(&io, '\n', TRUE) && io_error(&io);
642 return done_io(&io) || error;
645 static int read_properties(struct io *io, const char *separators, int (*read)(char *, size_t, char *, size_t));
652 /* XXX: Keep the view request first and in sync with views[]. */ \
653 REQ_GROUP("View switching") \
654 REQ_(VIEW_MAIN, "Show main view"), \
655 REQ_(VIEW_DIFF, "Show diff view"), \
656 REQ_(VIEW_LOG, "Show log view"), \
657 REQ_(VIEW_TREE, "Show tree view"), \
658 REQ_(VIEW_BLOB, "Show blob view"), \
659 REQ_(VIEW_BLAME, "Show blame view"), \
660 REQ_(VIEW_HELP, "Show help page"), \
661 REQ_(VIEW_PAGER, "Show pager view"), \
662 REQ_(VIEW_STATUS, "Show status view"), \
663 REQ_(VIEW_STAGE, "Show stage view"), \
665 REQ_GROUP("View manipulation") \
666 REQ_(ENTER, "Enter current line and scroll"), \
667 REQ_(NEXT, "Move to next"), \
668 REQ_(PREVIOUS, "Move to previous"), \
669 REQ_(VIEW_NEXT, "Move focus to next view"), \
670 REQ_(REFRESH, "Reload and refresh"), \
671 REQ_(MAXIMIZE, "Maximize the current view"), \
672 REQ_(VIEW_CLOSE, "Close the current view"), \
673 REQ_(QUIT, "Close all views and quit"), \
675 REQ_GROUP("View specific requests") \
676 REQ_(STATUS_UPDATE, "Update file status"), \
677 REQ_(STATUS_REVERT, "Revert file changes"), \
678 REQ_(STATUS_MERGE, "Merge file using external tool"), \
679 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
680 REQ_(TREE_PARENT, "Switch to parent directory in tree view"), \
682 REQ_GROUP("Cursor navigation") \
683 REQ_(MOVE_UP, "Move cursor one line up"), \
684 REQ_(MOVE_DOWN, "Move cursor one line down"), \
685 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
686 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
687 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
688 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
690 REQ_GROUP("Scrolling") \
691 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
692 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
693 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
694 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
696 REQ_GROUP("Searching") \
697 REQ_(SEARCH, "Search the view"), \
698 REQ_(SEARCH_BACK, "Search backwards in the view"), \
699 REQ_(FIND_NEXT, "Find next search match"), \
700 REQ_(FIND_PREV, "Find previous search match"), \
702 REQ_GROUP("Option manipulation") \
703 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
704 REQ_(TOGGLE_DATE, "Toggle date display"), \
705 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
706 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
707 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
710 REQ_(PROMPT, "Bring up the prompt"), \
711 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
712 REQ_(SHOW_VERSION, "Show version information"), \
713 REQ_(STOP_LOADING, "Stop all loading views"), \
714 REQ_(EDIT, "Open in editor"), \
715 REQ_(NONE, "Do nothing")
718 /* User action requests. */
720 #define REQ_GROUP(help)
721 #define REQ_(req, help) REQ_##req
723 /* Offset all requests to avoid conflicts with ncurses getch values. */
724 REQ_OFFSET = KEY_MAX + 1,
731 struct request_info {
732 enum request request;
738 static struct request_info req_info[] = {
739 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
740 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
747 get_request(const char *name)
749 int namelen = strlen(name);
752 for (i = 0; i < ARRAY_SIZE(req_info); i++)
753 if (req_info[i].namelen == namelen &&
754 !string_enum_compare(req_info[i].name, name, namelen))
755 return req_info[i].request;
765 static const char usage[] =
766 "tig " TIG_VERSION " (" __DATE__ ")\n"
768 "Usage: tig [options] [revs] [--] [paths]\n"
769 " or: tig show [options] [revs] [--] [paths]\n"
770 " or: tig blame [rev] path\n"
772 " or: tig < [git command output]\n"
775 " -v, --version Show version and exit\n"
776 " -h, --help Show help message and exit";
778 /* Option and state variables. */
779 static bool opt_date = TRUE;
780 static bool opt_author = TRUE;
781 static bool opt_line_number = FALSE;
782 static bool opt_line_graphics = TRUE;
783 static bool opt_rev_graph = FALSE;
784 static bool opt_show_refs = TRUE;
785 static int opt_num_interval = NUMBER_INTERVAL;
786 static int opt_tab_size = TAB_SIZE;
787 static int opt_author_cols = AUTHOR_COLS-1;
788 static char opt_path[SIZEOF_STR] = "";
789 static char opt_file[SIZEOF_STR] = "";
790 static char opt_ref[SIZEOF_REF] = "";
791 static char opt_head[SIZEOF_REF] = "";
792 static char opt_head_rev[SIZEOF_REV] = "";
793 static char opt_remote[SIZEOF_REF] = "";
794 static char opt_encoding[20] = "UTF-8";
795 static bool opt_utf8 = TRUE;
796 static char opt_codeset[20] = "UTF-8";
797 static iconv_t opt_iconv = ICONV_NONE;
798 static char opt_search[SIZEOF_STR] = "";
799 static char opt_cdup[SIZEOF_STR] = "";
800 static char opt_git_dir[SIZEOF_STR] = "";
801 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
802 static char opt_editor[SIZEOF_STR] = "";
803 static FILE *opt_tty = NULL;
805 #define is_initial_commit() (!*opt_head_rev)
806 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || !strcmp(opt_head_rev, (rev)))
809 parse_options(int argc, const char *argv[], const char ***run_argv)
811 enum request request = REQ_VIEW_MAIN;
812 const char *subcommand;
813 bool seen_dashdash = FALSE;
814 /* XXX: This is vulnerable to the user overriding options
815 * required for the main view parser. */
816 static const char *custom_argv[SIZEOF_ARG] = {
817 "git", "log", "--no-color", "--pretty=raw", "--parents",
822 if (!isatty(STDIN_FILENO))
823 return REQ_VIEW_PAGER;
826 return REQ_VIEW_MAIN;
828 subcommand = argv[1];
829 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
830 if (!strcmp(subcommand, "-S"))
831 warn("`-S' has been deprecated; use `tig status' instead");
833 warn("ignoring arguments after `%s'", subcommand);
834 return REQ_VIEW_STATUS;
836 } else if (!strcmp(subcommand, "blame")) {
837 if (argc <= 2 || argc > 4)
838 die("invalid number of options to blame\n\n%s", usage);
842 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
846 string_ncopy(opt_file, argv[i], strlen(argv[i]));
847 return REQ_VIEW_BLAME;
849 } else if (!strcmp(subcommand, "show")) {
850 request = REQ_VIEW_DIFF;
852 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
853 request = subcommand[0] == 'l' ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
854 warn("`tig %s' has been deprecated", subcommand);
861 custom_argv[1] = subcommand;
865 for (i = 1 + !!subcommand; i < argc; i++) {
866 const char *opt = argv[i];
868 if (seen_dashdash || !strcmp(opt, "--")) {
869 seen_dashdash = TRUE;
871 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
872 printf("tig version %s\n", TIG_VERSION);
875 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
876 printf("%s\n", usage);
880 custom_argv[j++] = opt;
881 if (j >= ARRAY_SIZE(custom_argv))
882 die("command too long");
885 custom_argv[j] = NULL;
886 *run_argv = custom_argv;
893 * Line-oriented content detection.
897 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
898 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
899 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
900 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
901 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
902 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
903 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
904 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
905 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
906 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
907 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
908 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
909 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
910 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
911 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
912 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
913 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
914 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
915 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
916 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
917 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
918 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
919 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
920 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
921 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
922 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
923 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
924 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
925 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
926 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
927 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
928 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
929 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
930 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
931 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
932 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
933 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
934 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
935 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
936 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
937 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
938 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
939 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
940 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
941 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
942 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
943 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
944 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
945 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
946 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
947 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
948 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
949 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
950 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
953 #define LINE(type, line, fg, bg, attr) \
961 const char *name; /* Option name. */
962 int namelen; /* Size of option name. */
963 const char *line; /* The start of line to match. */
964 int linelen; /* Size of string to match. */
965 int fg, bg, attr; /* Color and text attributes for the lines. */
968 static struct line_info line_info[] = {
969 #define LINE(type, line, fg, bg, attr) \
970 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
975 static enum line_type
976 get_line_type(const char *line)
978 int linelen = strlen(line);
981 for (type = 0; type < ARRAY_SIZE(line_info); type++)
982 /* Case insensitive search matches Signed-off-by lines better. */
983 if (linelen >= line_info[type].linelen &&
984 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
991 get_line_attr(enum line_type type)
993 assert(type < ARRAY_SIZE(line_info));
994 return COLOR_PAIR(type) | line_info[type].attr;
997 static struct line_info *
998 get_line_info(const char *name)
1000 size_t namelen = strlen(name);
1001 enum line_type type;
1003 for (type = 0; type < ARRAY_SIZE(line_info); type++)
1004 if (namelen == line_info[type].namelen &&
1005 !string_enum_compare(line_info[type].name, name, namelen))
1006 return &line_info[type];
1014 int default_bg = line_info[LINE_DEFAULT].bg;
1015 int default_fg = line_info[LINE_DEFAULT].fg;
1016 enum line_type type;
1020 if (assume_default_colors(default_fg, default_bg) == ERR) {
1021 default_bg = COLOR_BLACK;
1022 default_fg = COLOR_WHITE;
1025 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
1026 struct line_info *info = &line_info[type];
1027 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
1028 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
1030 init_pair(type, fg, bg);
1035 enum line_type type;
1038 unsigned int selected:1;
1039 unsigned int dirty:1;
1040 unsigned int cleareol:1;
1042 void *data; /* User data */
1052 enum request request;
1055 static struct keybinding default_keybindings[] = {
1056 /* View switching */
1057 { 'm', REQ_VIEW_MAIN },
1058 { 'd', REQ_VIEW_DIFF },
1059 { 'l', REQ_VIEW_LOG },
1060 { 't', REQ_VIEW_TREE },
1061 { 'f', REQ_VIEW_BLOB },
1062 { 'B', REQ_VIEW_BLAME },
1063 { 'p', REQ_VIEW_PAGER },
1064 { 'h', REQ_VIEW_HELP },
1065 { 'S', REQ_VIEW_STATUS },
1066 { 'c', REQ_VIEW_STAGE },
1068 /* View manipulation */
1069 { 'q', REQ_VIEW_CLOSE },
1070 { KEY_TAB, REQ_VIEW_NEXT },
1071 { KEY_RETURN, REQ_ENTER },
1072 { KEY_UP, REQ_PREVIOUS },
1073 { KEY_DOWN, REQ_NEXT },
1074 { 'R', REQ_REFRESH },
1075 { KEY_F(5), REQ_REFRESH },
1076 { 'O', REQ_MAXIMIZE },
1078 /* Cursor navigation */
1079 { 'k', REQ_MOVE_UP },
1080 { 'j', REQ_MOVE_DOWN },
1081 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1082 { KEY_END, REQ_MOVE_LAST_LINE },
1083 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1084 { ' ', REQ_MOVE_PAGE_DOWN },
1085 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1086 { 'b', REQ_MOVE_PAGE_UP },
1087 { '-', REQ_MOVE_PAGE_UP },
1090 { KEY_IC, REQ_SCROLL_LINE_UP },
1091 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1092 { 'w', REQ_SCROLL_PAGE_UP },
1093 { 's', REQ_SCROLL_PAGE_DOWN },
1096 { '/', REQ_SEARCH },
1097 { '?', REQ_SEARCH_BACK },
1098 { 'n', REQ_FIND_NEXT },
1099 { 'N', REQ_FIND_PREV },
1103 { 'z', REQ_STOP_LOADING },
1104 { 'v', REQ_SHOW_VERSION },
1105 { 'r', REQ_SCREEN_REDRAW },
1106 { '.', REQ_TOGGLE_LINENO },
1107 { 'D', REQ_TOGGLE_DATE },
1108 { 'A', REQ_TOGGLE_AUTHOR },
1109 { 'g', REQ_TOGGLE_REV_GRAPH },
1110 { 'F', REQ_TOGGLE_REFS },
1111 { ':', REQ_PROMPT },
1112 { 'u', REQ_STATUS_UPDATE },
1113 { '!', REQ_STATUS_REVERT },
1114 { 'M', REQ_STATUS_MERGE },
1115 { '@', REQ_STAGE_NEXT },
1116 { ',', REQ_TREE_PARENT },
1120 #define KEYMAP_INFO \
1134 #define KEYMAP_(name) KEYMAP_##name
1139 static struct int_map keymap_table[] = {
1140 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
1145 #define set_keymap(map, name) \
1146 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
1148 struct keybinding_table {
1149 struct keybinding *data;
1153 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1156 add_keybinding(enum keymap keymap, enum request request, int key)
1158 struct keybinding_table *table = &keybindings[keymap];
1160 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1162 die("Failed to allocate keybinding");
1163 table->data[table->size].alias = key;
1164 table->data[table->size++].request = request;
1167 /* Looks for a key binding first in the given map, then in the generic map, and
1168 * lastly in the default keybindings. */
1170 get_keybinding(enum keymap keymap, int key)
1174 for (i = 0; i < keybindings[keymap].size; i++)
1175 if (keybindings[keymap].data[i].alias == key)
1176 return keybindings[keymap].data[i].request;
1178 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1179 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1180 return keybindings[KEYMAP_GENERIC].data[i].request;
1182 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1183 if (default_keybindings[i].alias == key)
1184 return default_keybindings[i].request;
1186 return (enum request) key;
1195 static struct key key_table[] = {
1196 { "Enter", KEY_RETURN },
1198 { "Backspace", KEY_BACKSPACE },
1200 { "Escape", KEY_ESC },
1201 { "Left", KEY_LEFT },
1202 { "Right", KEY_RIGHT },
1204 { "Down", KEY_DOWN },
1205 { "Insert", KEY_IC },
1206 { "Delete", KEY_DC },
1208 { "Home", KEY_HOME },
1210 { "PageUp", KEY_PPAGE },
1211 { "PageDown", KEY_NPAGE },
1221 { "F10", KEY_F(10) },
1222 { "F11", KEY_F(11) },
1223 { "F12", KEY_F(12) },
1227 get_key_value(const char *name)
1231 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1232 if (!strcasecmp(key_table[i].name, name))
1233 return key_table[i].value;
1235 if (strlen(name) == 1 && isprint(*name))
1242 get_key_name(int key_value)
1244 static char key_char[] = "'X'";
1245 const char *seq = NULL;
1248 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1249 if (key_table[key].value == key_value)
1250 seq = key_table[key].name;
1254 isprint(key_value)) {
1255 key_char[1] = (char) key_value;
1259 return seq ? seq : "(no key)";
1263 get_key(enum request request)
1265 static char buf[BUFSIZ];
1272 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1273 struct keybinding *keybinding = &default_keybindings[i];
1275 if (keybinding->request != request)
1278 if (!string_format_from(buf, &pos, "%s%s", sep,
1279 get_key_name(keybinding->alias)))
1280 return "Too many keybindings!";
1287 struct run_request {
1290 const char *argv[SIZEOF_ARG];
1293 static struct run_request *run_request;
1294 static size_t run_requests;
1297 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1299 struct run_request *req;
1301 if (argc >= ARRAY_SIZE(req->argv) - 1)
1304 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1309 req = &run_request[run_requests];
1310 req->keymap = keymap;
1312 req->argv[0] = NULL;
1314 if (!format_argv(req->argv, argv, FORMAT_NONE))
1317 return REQ_NONE + ++run_requests;
1320 static struct run_request *
1321 get_run_request(enum request request)
1323 if (request <= REQ_NONE)
1325 return &run_request[request - REQ_NONE - 1];
1329 add_builtin_run_requests(void)
1331 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1332 const char *gc[] = { "git", "gc", NULL };
1339 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1340 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1344 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1347 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1348 if (req != REQ_NONE)
1349 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1354 * User config file handling.
1357 static struct int_map color_map[] = {
1358 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1370 #define set_color(color, name) \
1371 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1373 static struct int_map attr_map[] = {
1374 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1381 ATTR_MAP(UNDERLINE),
1384 #define set_attribute(attr, name) \
1385 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1387 static int config_lineno;
1388 static bool config_errors;
1389 static const char *config_msg;
1391 /* Wants: object fgcolor bgcolor [attr] */
1393 option_color_command(int argc, const char *argv[])
1395 struct line_info *info;
1397 if (argc != 3 && argc != 4) {
1398 config_msg = "Wrong number of arguments given to color command";
1402 info = get_line_info(argv[0]);
1404 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1405 info = get_line_info("delimiter");
1407 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1408 info = get_line_info("date");
1411 config_msg = "Unknown color name";
1416 if (set_color(&info->fg, argv[1]) == ERR ||
1417 set_color(&info->bg, argv[2]) == ERR) {
1418 config_msg = "Unknown color";
1422 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1423 config_msg = "Unknown attribute";
1430 static bool parse_bool(const char *s)
1432 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1433 !strcmp(s, "yes")) ? TRUE : FALSE;
1437 parse_int(const char *s, int default_value, int min, int max)
1439 int value = atoi(s);
1441 return (value < min || value > max) ? default_value : value;
1444 /* Wants: name = value */
1446 option_set_command(int argc, const char *argv[])
1449 config_msg = "Wrong number of arguments given to set command";
1453 if (strcmp(argv[1], "=")) {
1454 config_msg = "No value assigned";
1458 if (!strcmp(argv[0], "show-author")) {
1459 opt_author = parse_bool(argv[2]);
1463 if (!strcmp(argv[0], "show-date")) {
1464 opt_date = parse_bool(argv[2]);
1468 if (!strcmp(argv[0], "show-rev-graph")) {
1469 opt_rev_graph = parse_bool(argv[2]);
1473 if (!strcmp(argv[0], "show-refs")) {
1474 opt_show_refs = parse_bool(argv[2]);
1478 if (!strcmp(argv[0], "show-line-numbers")) {
1479 opt_line_number = parse_bool(argv[2]);
1483 if (!strcmp(argv[0], "line-graphics")) {
1484 opt_line_graphics = parse_bool(argv[2]);
1488 if (!strcmp(argv[0], "line-number-interval")) {
1489 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1493 if (!strcmp(argv[0], "author-width")) {
1494 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1498 if (!strcmp(argv[0], "tab-size")) {
1499 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1503 if (!strcmp(argv[0], "commit-encoding")) {
1504 const char *arg = argv[2];
1505 int arglen = strlen(arg);
1510 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1511 config_msg = "Unmatched quotation";
1514 arg += 1; arglen -= 2;
1516 string_ncopy(opt_encoding, arg, strlen(arg));
1521 config_msg = "Unknown variable name";
1525 /* Wants: mode request key */
1527 option_bind_command(int argc, const char *argv[])
1529 enum request request;
1534 config_msg = "Wrong number of arguments given to bind command";
1538 if (set_keymap(&keymap, argv[0]) == ERR) {
1539 config_msg = "Unknown key map";
1543 key = get_key_value(argv[1]);
1545 config_msg = "Unknown key";
1549 request = get_request(argv[2]);
1550 if (request == REQ_NONE) {
1551 const char *obsolete[] = { "cherry-pick", "screen-resize" };
1552 size_t namelen = strlen(argv[2]);
1555 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1556 if (namelen == strlen(obsolete[i]) &&
1557 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1558 config_msg = "Obsolete request name";
1563 if (request == REQ_NONE && *argv[2]++ == '!')
1564 request = add_run_request(keymap, key, argc - 2, argv + 2);
1565 if (request == REQ_NONE) {
1566 config_msg = "Unknown request name";
1570 add_keybinding(keymap, request, key);
1576 set_option(const char *opt, char *value)
1578 const char *argv[SIZEOF_ARG];
1581 if (!argv_from_string(argv, &argc, value)) {
1582 config_msg = "Too many option arguments";
1586 if (!strcmp(opt, "color"))
1587 return option_color_command(argc, argv);
1589 if (!strcmp(opt, "set"))
1590 return option_set_command(argc, argv);
1592 if (!strcmp(opt, "bind"))
1593 return option_bind_command(argc, argv);
1595 config_msg = "Unknown option command";
1600 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1605 config_msg = "Internal error";
1607 /* Check for comment markers, since read_properties() will
1608 * only ensure opt and value are split at first " \t". */
1609 optlen = strcspn(opt, "#");
1613 if (opt[optlen] != 0) {
1614 config_msg = "No option value";
1618 /* Look for comment endings in the value. */
1619 size_t len = strcspn(value, "#");
1621 if (len < valuelen) {
1623 value[valuelen] = 0;
1626 status = set_option(opt, value);
1629 if (status == ERR) {
1630 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1631 config_lineno, (int) optlen, opt, config_msg);
1632 config_errors = TRUE;
1635 /* Always keep going if errors are encountered. */
1640 load_option_file(const char *path)
1644 /* It's ok that the file doesn't exist. */
1645 if (!io_open(&io, path))
1649 config_errors = FALSE;
1651 if (read_properties(&io, " \t", read_option) == ERR ||
1652 config_errors == TRUE)
1653 fprintf(stderr, "Errors while loading %s.\n", path);
1659 const char *home = getenv("HOME");
1660 const char *tigrc_user = getenv("TIGRC_USER");
1661 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1662 char buf[SIZEOF_STR];
1664 add_builtin_run_requests();
1666 if (!tigrc_system) {
1667 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1671 load_option_file(tigrc_system);
1674 if (!home || !string_format(buf, "%s/.tigrc", home))
1678 load_option_file(tigrc_user);
1691 /* The display array of active views and the index of the current view. */
1692 static struct view *display[2];
1693 static unsigned int current_view;
1695 /* Reading from the prompt? */
1696 static bool input_mode = FALSE;
1698 #define foreach_displayed_view(view, i) \
1699 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1701 #define displayed_views() (display[1] != NULL ? 2 : 1)
1703 /* Current head and commit ID */
1704 static char ref_blob[SIZEOF_REF] = "";
1705 static char ref_commit[SIZEOF_REF] = "HEAD";
1706 static char ref_head[SIZEOF_REF] = "HEAD";
1709 const char *name; /* View name */
1710 const char *cmd_env; /* Command line set via environment */
1711 const char *id; /* Points to either of ref_{head,commit,blob} */
1713 struct view_ops *ops; /* View operations */
1715 enum keymap keymap; /* What keymap does this view have */
1716 bool git_dir; /* Whether the view requires a git directory. */
1718 char ref[SIZEOF_REF]; /* Hovered commit reference */
1719 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1721 int height, width; /* The width and height of the main window */
1722 WINDOW *win; /* The main window */
1723 WINDOW *title; /* The title window living below the main window */
1726 unsigned long offset; /* Offset of the window top */
1727 unsigned long lineno; /* Current line number */
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) {
2928 if (!view->ops->open(view)) {
2929 report("Failed to load %s view", view->name);
2932 restore_view_position(view);
2934 } else if ((reload || strcmp(view->vid, view->id)) &&
2935 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2936 report("Failed to load %s view", view->name);
2940 if (split && prev->lineno - prev->offset >= prev->height) {
2941 /* Take the title line into account. */
2942 int lines = prev->lineno - prev->offset - prev->height + 1;
2944 /* Scroll the view that was split if the current line is
2945 * outside the new limited view. */
2946 do_scroll_view(prev, lines);
2949 if (prev && view != prev) {
2950 if (split && !backgrounded) {
2951 /* "Blur" the previous view. */
2952 update_view_title(prev);
2955 view->parent = prev;
2958 if (view->pipe && view->lines == 0) {
2959 /* Clear the old view and let the incremental updating refill
2962 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
2964 } else if (view_is_displayed(view)) {
2969 /* If the view is backgrounded the above calls to report()
2970 * won't redraw the view title. */
2972 update_view_title(view);
2976 open_external_viewer(const char *argv[], const char *dir)
2978 def_prog_mode(); /* save current tty modes */
2979 endwin(); /* restore original tty modes */
2980 run_io_fg(argv, dir);
2981 fprintf(stderr, "Press Enter to continue");
2984 redraw_display(TRUE);
2988 open_mergetool(const char *file)
2990 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
2992 open_external_viewer(mergetool_argv, opt_cdup);
2996 open_editor(bool from_root, const char *file)
2998 const char *editor_argv[] = { "vi", file, NULL };
3001 editor = getenv("GIT_EDITOR");
3002 if (!editor && *opt_editor)
3003 editor = opt_editor;
3005 editor = getenv("VISUAL");
3007 editor = getenv("EDITOR");
3011 editor_argv[0] = editor;
3012 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3016 open_run_request(enum request request)
3018 struct run_request *req = get_run_request(request);
3019 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3022 report("Unknown run request");
3026 if (format_argv(argv, req->argv, FORMAT_ALL))
3027 open_external_viewer(argv, NULL);
3032 * User request switch noodle
3036 view_driver(struct view *view, enum request request)
3040 if (request == REQ_NONE) {
3045 if (request > REQ_NONE) {
3046 open_run_request(request);
3047 /* FIXME: When all views can refresh always do this. */
3048 if (view == VIEW(REQ_VIEW_STATUS) ||
3049 view == VIEW(REQ_VIEW_MAIN) ||
3050 view == VIEW(REQ_VIEW_LOG) ||
3051 view == VIEW(REQ_VIEW_STAGE))
3052 request = REQ_REFRESH;
3057 if (view && view->lines) {
3058 request = view->ops->request(view, request, &view->line[view->lineno]);
3059 if (request == REQ_NONE)
3066 case REQ_MOVE_PAGE_UP:
3067 case REQ_MOVE_PAGE_DOWN:
3068 case REQ_MOVE_FIRST_LINE:
3069 case REQ_MOVE_LAST_LINE:
3070 move_view(view, request);
3073 case REQ_SCROLL_LINE_DOWN:
3074 case REQ_SCROLL_LINE_UP:
3075 case REQ_SCROLL_PAGE_DOWN:
3076 case REQ_SCROLL_PAGE_UP:
3077 scroll_view(view, request);
3080 case REQ_VIEW_BLAME:
3082 report("No file chosen, press %s to open tree view",
3083 get_key(REQ_VIEW_TREE));
3086 open_view(view, request, OPEN_DEFAULT);
3091 report("No file chosen, press %s to open tree view",
3092 get_key(REQ_VIEW_TREE));
3095 open_view(view, request, OPEN_DEFAULT);
3098 case REQ_VIEW_PAGER:
3099 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3100 report("No pager content, press %s to run command from prompt",
3101 get_key(REQ_PROMPT));
3104 open_view(view, request, OPEN_DEFAULT);
3107 case REQ_VIEW_STAGE:
3108 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3109 report("No stage content, press %s to open the status view and choose file",
3110 get_key(REQ_VIEW_STATUS));
3113 open_view(view, request, OPEN_DEFAULT);
3116 case REQ_VIEW_STATUS:
3117 if (opt_is_inside_work_tree == FALSE) {
3118 report("The status view requires a working tree");
3121 open_view(view, request, OPEN_DEFAULT);
3129 open_view(view, request, OPEN_DEFAULT);
3134 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3136 if ((view == VIEW(REQ_VIEW_DIFF) &&
3137 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3138 (view == VIEW(REQ_VIEW_DIFF) &&
3139 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3140 (view == VIEW(REQ_VIEW_STAGE) &&
3141 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3142 (view == VIEW(REQ_VIEW_BLOB) &&
3143 view->parent == VIEW(REQ_VIEW_TREE))) {
3146 view = view->parent;
3147 line = view->lineno;
3148 move_view(view, request);
3149 if (view_is_displayed(view))
3150 update_view_title(view);
3151 if (line != view->lineno)
3152 view->ops->request(view, REQ_ENTER,
3153 &view->line[view->lineno]);
3156 move_view(view, request);
3162 int nviews = displayed_views();
3163 int next_view = (current_view + 1) % nviews;
3165 if (next_view == current_view) {
3166 report("Only one view is displayed");
3170 current_view = next_view;
3171 /* Blur out the title of the previous view. */
3172 update_view_title(view);
3177 report("Refreshing is not yet supported for the %s view", view->name);
3181 if (displayed_views() == 2)
3182 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3185 case REQ_TOGGLE_LINENO:
3186 toggle_view_option(&opt_line_number, "line numbers");
3189 case REQ_TOGGLE_DATE:
3190 toggle_view_option(&opt_date, "date display");
3193 case REQ_TOGGLE_AUTHOR:
3194 toggle_view_option(&opt_author, "author display");
3197 case REQ_TOGGLE_REV_GRAPH:
3198 toggle_view_option(&opt_rev_graph, "revision graph display");
3201 case REQ_TOGGLE_REFS:
3202 toggle_view_option(&opt_show_refs, "reference display");
3206 case REQ_SEARCH_BACK:
3207 search_view(view, request);
3212 find_next(view, request);
3215 case REQ_STOP_LOADING:
3216 for (i = 0; i < ARRAY_SIZE(views); i++) {
3219 report("Stopped loading the %s view", view->name),
3220 end_update(view, TRUE);
3224 case REQ_SHOW_VERSION:
3225 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3228 case REQ_SCREEN_REDRAW:
3229 redraw_display(TRUE);
3233 report("Nothing to edit");
3237 report("Nothing to enter");
3240 case REQ_VIEW_CLOSE:
3241 /* XXX: Mark closed views by letting view->parent point to the
3242 * view itself. Parents to closed view should never be
3245 view->parent->parent != view->parent) {
3246 memset(display, 0, sizeof(display));
3248 display[current_view] = view->parent;
3249 view->parent = view;
3251 redraw_display(FALSE);
3260 report("Unknown key, press 'h' for help");
3273 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3275 char *text = line->data;
3277 if (opt_line_number && draw_lineno(view, lineno))
3280 draw_text(view, line->type, text, TRUE);
3285 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3287 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3288 char refbuf[SIZEOF_STR];
3291 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3292 ref = chomp_string(refbuf);
3297 /* This is the only fatal call, since it can "corrupt" the buffer. */
3298 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3305 add_pager_refs(struct view *view, struct line *line)
3307 char buf[SIZEOF_STR];
3308 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3310 size_t bufpos = 0, refpos = 0;
3311 const char *sep = "Refs: ";
3312 bool is_tag = FALSE;
3314 assert(line->type == LINE_COMMIT);
3316 refs = get_refs(commit_id);
3318 if (view == VIEW(REQ_VIEW_DIFF))
3319 goto try_add_describe_ref;
3324 struct ref *ref = refs[refpos];
3325 const char *fmt = ref->tag ? "%s[%s]" :
3326 ref->remote ? "%s<%s>" : "%s%s";
3328 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3333 } while (refs[refpos++]->next);
3335 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3336 try_add_describe_ref:
3337 /* Add <tag>-g<commit_id> "fake" reference. */
3338 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3345 add_line_text(view, buf, LINE_PP_REFS);
3349 pager_read(struct view *view, char *data)
3356 line = add_line_text(view, data, get_line_type(data));
3360 if (line->type == LINE_COMMIT &&
3361 (view == VIEW(REQ_VIEW_DIFF) ||
3362 view == VIEW(REQ_VIEW_LOG)))
3363 add_pager_refs(view, line);
3369 pager_request(struct view *view, enum request request, struct line *line)
3373 if (request != REQ_ENTER)
3376 if (line->type == LINE_COMMIT &&
3377 (view == VIEW(REQ_VIEW_LOG) ||
3378 view == VIEW(REQ_VIEW_PAGER))) {
3379 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3383 /* Always scroll the view even if it was split. That way
3384 * you can use Enter to scroll through the log view and
3385 * split open each commit diff. */
3386 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3388 /* FIXME: A minor workaround. Scrolling the view will call report("")
3389 * but if we are scrolling a non-current view this won't properly
3390 * update the view title. */
3392 update_view_title(view);
3398 pager_grep(struct view *view, struct line *line)
3401 char *text = line->data;
3406 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3413 pager_select(struct view *view, struct line *line)
3415 if (line->type == LINE_COMMIT) {
3416 char *text = (char *)line->data + STRING_SIZE("commit ");
3418 if (view != VIEW(REQ_VIEW_PAGER))
3419 string_copy_rev(view->ref, text);
3420 string_copy_rev(ref_commit, text);
3424 static struct view_ops pager_ops = {
3435 static const char *log_argv[SIZEOF_ARG] = {
3436 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3440 log_request(struct view *view, enum request request, struct line *line)
3445 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3448 return pager_request(view, request, line);
3452 static struct view_ops log_ops = {
3463 static const char *diff_argv[SIZEOF_ARG] = {
3464 "git", "show", "--pretty=fuller", "--no-color", "--root",
3465 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3468 static struct view_ops diff_ops = {
3484 help_open(struct view *view)
3486 int lines = ARRAY_SIZE(req_info) + 2;
3489 if (view->lines > 0)
3492 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3493 if (!req_info[i].request)
3496 lines += run_requests + 1;
3498 view->line = calloc(lines, sizeof(*view->line));
3502 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3504 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3507 if (req_info[i].request == REQ_NONE)
3510 if (!req_info[i].request) {
3511 add_line_text(view, "", LINE_DEFAULT);
3512 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3516 key = get_key(req_info[i].request);
3518 key = "(no key defined)";
3520 add_line_format(view, LINE_DEFAULT, " %-25s %s",
3521 key, req_info[i].help);
3525 add_line_text(view, "", LINE_DEFAULT);
3526 add_line_text(view, "External commands:", LINE_DEFAULT);
3529 for (i = 0; i < run_requests; i++) {
3530 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3532 char cmd[SIZEOF_STR];
3539 key = get_key_name(req->key);
3541 key = "(no key defined)";
3543 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3544 if (!string_format_from(cmd, &bufpos, "%s%s",
3545 argc ? " " : "", req->argv[argc]))
3548 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3549 keymap_table[req->keymap].name, key, cmd);
3555 static struct view_ops help_ops = {
3571 struct tree_stack_entry {
3572 struct tree_stack_entry *prev; /* Entry below this in the stack */
3573 unsigned long lineno; /* Line number to restore */
3574 char *name; /* Position of name in opt_path */
3577 /* The top of the path stack. */
3578 static struct tree_stack_entry *tree_stack = NULL;
3579 unsigned long tree_lineno = 0;
3582 pop_tree_stack_entry(void)
3584 struct tree_stack_entry *entry = tree_stack;
3586 tree_lineno = entry->lineno;
3588 tree_stack = entry->prev;
3593 push_tree_stack_entry(const char *name, unsigned long lineno)
3595 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3596 size_t pathlen = strlen(opt_path);
3601 entry->prev = tree_stack;
3602 entry->name = opt_path + pathlen;
3605 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3606 pop_tree_stack_entry();
3610 /* Move the current line to the first tree entry. */
3612 entry->lineno = lineno;
3615 /* Parse output from git-ls-tree(1):
3617 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3618 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3619 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3620 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3623 #define SIZEOF_TREE_ATTR \
3624 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3626 #define TREE_UP_FORMAT "040000 tree %s\t.."
3629 tree_path(struct line *line)
3631 const char *path = line->data;
3633 return path + SIZEOF_TREE_ATTR;
3637 tree_compare_entry(struct line *line1, struct line *line2)
3639 if (line1->type != line2->type)
3640 return line1->type == LINE_TREE_DIR ? -1 : 1;
3641 return strcmp(tree_path(line1), tree_path(line2));
3645 tree_read(struct view *view, char *text)
3647 size_t textlen = text ? strlen(text) : 0;
3648 struct line *entry, *line;
3649 enum line_type type;
3653 if (textlen <= SIZEOF_TREE_ATTR)
3656 type = text[STRING_SIZE("100644 ")] == 't'
3657 ? LINE_TREE_DIR : LINE_TREE_FILE;
3659 if (view->lines == 0 &&
3660 !add_line_format(view, LINE_DEFAULT, "Directory path /%s", opt_path))
3663 /* Strip the path part ... */
3665 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3666 size_t striplen = strlen(opt_path);
3667 char *path = text + SIZEOF_TREE_ATTR;
3669 if (pathlen > striplen)
3670 memmove(path, path + striplen,
3671 pathlen - striplen + 1);
3673 /* Insert "link" to parent directory. */
3674 if (view->lines == 1 &&
3675 !add_line_format(view, LINE_TREE_DIR, TREE_UP_FORMAT, view->ref))
3679 entry = add_line_text(view, text, type);
3684 /* Skip "Directory ..." and ".." line. */
3685 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3686 if (tree_compare_entry(line, entry) <= 0)
3689 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3693 for (; line <= entry; line++)
3694 line->dirty = line->cleareol = 1;
3698 if (tree_lineno > view->lineno) {
3699 view->lineno = tree_lineno;
3709 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
3710 int fd = mkstemp(file);
3713 report("Failed to create temporary file");
3714 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
3715 report("Failed to save blob data to file");
3717 open_editor(FALSE, file);
3723 tree_request(struct view *view, enum request request, struct line *line)
3725 enum open_flags flags;
3728 case REQ_VIEW_BLAME:
3729 if (line->type != LINE_TREE_FILE) {
3730 report("Blame only supported for files");
3734 string_copy(opt_ref, view->vid);
3738 if (line->type != LINE_TREE_FILE) {
3739 report("Edit only supported for files");
3740 } else if (!is_head_commit(view->vid)) {
3743 open_editor(TRUE, opt_file);
3747 case REQ_TREE_PARENT:
3749 /* quit view if at top of tree */
3750 return REQ_VIEW_CLOSE;
3753 line = &view->line[1];
3763 /* Cleanup the stack if the tree view is at a different tree. */
3764 while (!*opt_path && tree_stack)
3765 pop_tree_stack_entry();
3767 switch (line->type) {
3769 /* Depending on whether it is a subdir or parent (updir?) link
3770 * mangle the path buffer. */
3771 if (line == &view->line[1] && *opt_path) {
3772 pop_tree_stack_entry();
3775 const char *basename = tree_path(line);
3777 push_tree_stack_entry(basename, view->lineno);
3780 /* Trees and subtrees share the same ID, so they are not not
3781 * unique like blobs. */
3782 flags = OPEN_RELOAD;
3783 request = REQ_VIEW_TREE;
3786 case LINE_TREE_FILE:
3787 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3788 request = REQ_VIEW_BLOB;
3795 open_view(view, request, flags);
3796 if (request == REQ_VIEW_TREE) {
3797 view->lineno = tree_lineno;
3804 tree_select(struct view *view, struct line *line)
3806 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3808 if (line->type == LINE_TREE_FILE) {
3809 string_copy_rev(ref_blob, text);
3810 string_format(opt_file, "%s%s", opt_path, tree_path(line));
3812 } else if (line->type != LINE_TREE_DIR) {
3816 string_copy_rev(view->ref, text);
3819 static const char *tree_argv[SIZEOF_ARG] = {
3820 "git", "ls-tree", "%(commit)", "%(directory)", NULL
3823 static struct view_ops tree_ops = {
3835 blob_read(struct view *view, char *line)
3839 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3843 blob_request(struct view *view, enum request request, struct line *line)
3850 return pager_request(view, request, line);
3854 static const char *blob_argv[SIZEOF_ARG] = {
3855 "git", "cat-file", "blob", "%(blob)", NULL
3858 static struct view_ops blob_ops = {
3872 * Loading the blame view is a two phase job:
3874 * 1. File content is read either using opt_file from the
3875 * filesystem or using git-cat-file.
3876 * 2. Then blame information is incrementally added by
3877 * reading output from git-blame.
3880 static const char *blame_head_argv[] = {
3881 "git", "blame", "--incremental", "--", "%(file)", NULL
3884 static const char *blame_ref_argv[] = {
3885 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
3888 static const char *blame_cat_file_argv[] = {
3889 "git", "cat-file", "blob", "%(ref):%(file)", NULL
3892 struct blame_commit {
3893 char id[SIZEOF_REV]; /* SHA1 ID. */
3894 char title[128]; /* First line of the commit message. */
3895 char author[75]; /* Author of the commit. */
3896 struct tm time; /* Date from the author ident. */
3897 char filename[128]; /* Name of file. */
3898 bool has_previous; /* Was a "previous" line detected. */
3902 struct blame_commit *commit;
3907 blame_open(struct view *view)
3909 if (*opt_ref || !io_open(&view->io, opt_file)) {
3910 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
3914 setup_update(view, opt_file);
3915 string_format(view->ref, "%s ...", opt_file);
3920 static struct blame_commit *
3921 get_blame_commit(struct view *view, const char *id)
3925 for (i = 0; i < view->lines; i++) {
3926 struct blame *blame = view->line[i].data;
3931 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3932 return blame->commit;
3936 struct blame_commit *commit = calloc(1, sizeof(*commit));
3939 string_ncopy(commit->id, id, SIZEOF_REV);
3945 parse_number(const char **posref, size_t *number, size_t min, size_t max)
3947 const char *pos = *posref;
3950 pos = strchr(pos + 1, ' ');
3951 if (!pos || !isdigit(pos[1]))
3953 *number = atoi(pos + 1);
3954 if (*number < min || *number > max)
3961 static struct blame_commit *
3962 parse_blame_commit(struct view *view, const char *text, int *blamed)
3964 struct blame_commit *commit;
3965 struct blame *blame;
3966 const char *pos = text + SIZEOF_REV - 1;
3970 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3973 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3974 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3977 commit = get_blame_commit(view, text);
3983 struct line *line = &view->line[lineno + group - 1];
3986 blame->commit = commit;
3994 blame_read_file(struct view *view, const char *line, bool *read_file)
3997 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4000 if (view->lines == 0 && !view->parent)
4001 die("No blame exist for %s", view->vid);
4003 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4004 report("Failed to load blame data");
4008 done_io(view->pipe);
4014 size_t linelen = strlen(line);
4015 struct blame *blame = malloc(sizeof(*blame) + linelen);
4017 blame->commit = NULL;
4018 strncpy(blame->text, line, linelen);
4019 blame->text[linelen] = 0;
4020 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4025 match_blame_header(const char *name, char **line)
4027 size_t namelen = strlen(name);
4028 bool matched = !strncmp(name, *line, namelen);
4037 blame_read(struct view *view, char *line)
4039 static struct blame_commit *commit = NULL;
4040 static int blamed = 0;
4041 static time_t author_time;
4042 static bool read_file = TRUE;
4045 return blame_read_file(view, line, &read_file);
4052 string_format(view->ref, "%s", view->vid);
4053 if (view_is_displayed(view)) {
4054 update_view_title(view);
4055 redraw_view_from(view, 0);
4061 commit = parse_blame_commit(view, line, &blamed);
4062 string_format(view->ref, "%s %2d%%", view->vid,
4063 blamed * 100 / view->lines);
4065 } else if (match_blame_header("author ", &line)) {
4066 string_ncopy(commit->author, line, strlen(line));
4068 } else if (match_blame_header("author-time ", &line)) {
4069 author_time = (time_t) atol(line);
4071 } else if (match_blame_header("author-tz ", &line)) {
4074 tz = ('0' - line[1]) * 60 * 60 * 10;
4075 tz += ('0' - line[2]) * 60 * 60;
4076 tz += ('0' - line[3]) * 60;
4077 tz += ('0' - line[4]) * 60;
4083 gmtime_r(&author_time, &commit->time);
4085 } else if (match_blame_header("summary ", &line)) {
4086 string_ncopy(commit->title, line, strlen(line));
4088 } else if (match_blame_header("previous ", &line)) {
4089 commit->has_previous = TRUE;
4091 } else if (match_blame_header("filename ", &line)) {
4092 string_ncopy(commit->filename, line, strlen(line));
4100 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4102 struct blame *blame = line->data;
4103 struct tm *time = NULL;
4104 const char *id = NULL, *author = NULL;
4106 if (blame->commit && *blame->commit->filename) {
4107 id = blame->commit->id;
4108 author = blame->commit->author;
4109 time = &blame->commit->time;
4112 if (opt_date && draw_date(view, time))
4116 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
4119 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4122 if (draw_lineno(view, lineno))
4125 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4130 check_blame_commit(struct blame *blame)
4133 report("Commit data not loaded yet");
4134 else if (!strcmp(blame->commit->id, NULL_ID))
4135 report("No commit exist for the selected line");
4142 blame_request(struct view *view, enum request request, struct line *line)
4144 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4145 struct blame *blame = line->data;
4148 case REQ_VIEW_BLAME:
4149 if (check_blame_commit(blame)) {
4150 string_copy(opt_ref, blame->commit->id);
4151 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4156 if (!blame->commit) {
4157 report("No commit loaded yet");
4161 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4162 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4165 if (!strcmp(blame->commit->id, NULL_ID)) {
4166 struct view *diff = VIEW(REQ_VIEW_DIFF);
4167 const char *diff_index_argv[] = {
4168 "git", "diff-index", "--root", "--patch-with-stat",
4169 "-C", "-M", "HEAD", "--", view->vid, NULL
4172 if (!blame->commit->has_previous) {
4173 diff_index_argv[1] = "diff";
4174 diff_index_argv[2] = "--no-color";
4175 diff_index_argv[5] = "--";
4176 diff_index_argv[6] = "/dev/null";
4179 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4180 report("Failed to allocate diff command");
4183 flags |= OPEN_PREPARED;
4186 open_view(view, REQ_VIEW_DIFF, flags);
4187 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4188 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4199 blame_grep(struct view *view, struct line *line)
4201 struct blame *blame = line->data;
4202 struct blame_commit *commit = blame->commit;
4205 #define MATCH(text, on) \
4206 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4209 char buf[DATE_COLS + 1];
4211 if (MATCH(commit->title, 1) ||
4212 MATCH(commit->author, opt_author) ||
4213 MATCH(commit->id, opt_date))
4216 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4221 return MATCH(blame->text, 1);
4227 blame_select(struct view *view, struct line *line)
4229 struct blame *blame = line->data;
4230 struct blame_commit *commit = blame->commit;
4235 if (!strcmp(commit->id, NULL_ID))
4236 string_ncopy(ref_commit, "HEAD", 4);
4238 string_copy_rev(ref_commit, commit->id);
4241 static struct view_ops blame_ops = {
4260 char rev[SIZEOF_REV];
4261 char name[SIZEOF_STR];
4265 char rev[SIZEOF_REV];
4266 char name[SIZEOF_STR];
4270 static char status_onbranch[SIZEOF_STR];
4271 static struct status stage_status;
4272 static enum line_type stage_line_type;
4273 static size_t stage_chunks;
4274 static int *stage_chunk;
4276 /* This should work even for the "On branch" line. */
4278 status_has_none(struct view *view, struct line *line)
4280 return line < view->line + view->lines && !line[1].data;
4283 /* Get fields from the diff line:
4284 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4287 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4289 const char *old_mode = buf + 1;
4290 const char *new_mode = buf + 8;
4291 const char *old_rev = buf + 15;
4292 const char *new_rev = buf + 56;
4293 const char *status = buf + 97;
4296 old_mode[-1] != ':' ||
4297 new_mode[-1] != ' ' ||
4298 old_rev[-1] != ' ' ||
4299 new_rev[-1] != ' ' ||
4303 file->status = *status;
4305 string_copy_rev(file->old.rev, old_rev);
4306 string_copy_rev(file->new.rev, new_rev);
4308 file->old.mode = strtoul(old_mode, NULL, 8);
4309 file->new.mode = strtoul(new_mode, NULL, 8);
4311 file->old.name[0] = file->new.name[0] = 0;
4317 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4319 struct status *file = NULL;
4320 struct status *unmerged = NULL;
4324 if (!run_io(&io, argv, NULL, IO_RD))
4327 add_line_data(view, NULL, type);
4329 while ((buf = io_get(&io, 0, TRUE))) {
4331 file = calloc(1, sizeof(*file));
4332 if (!file || !add_line_data(view, file, type))
4336 /* Parse diff info part. */
4338 file->status = status;
4340 string_copy(file->old.rev, NULL_ID);
4342 } else if (!file->status) {
4343 if (!status_get_diff(file, buf, strlen(buf)))
4346 buf = io_get(&io, 0, TRUE);
4350 /* Collapse all 'M'odified entries that follow a
4351 * associated 'U'nmerged entry. */
4352 if (file->status == 'U') {
4355 } else if (unmerged) {
4356 int collapse = !strcmp(buf, unmerged->new.name);
4367 /* Grab the old name for rename/copy. */
4368 if (!*file->old.name &&
4369 (file->status == 'R' || file->status == 'C')) {
4370 string_ncopy(file->old.name, buf, strlen(buf));
4372 buf = io_get(&io, 0, TRUE);
4377 /* git-ls-files just delivers a NUL separated list of
4378 * file names similar to the second half of the
4379 * git-diff-* output. */
4380 string_ncopy(file->new.name, buf, strlen(buf));
4381 if (!*file->old.name)
4382 string_copy(file->old.name, file->new.name);
4386 if (io_error(&io)) {
4392 if (!view->line[view->lines - 1].data)
4393 add_line_data(view, NULL, LINE_STAT_NONE);
4399 /* Don't show unmerged entries in the staged section. */
4400 static const char *status_diff_index_argv[] = {
4401 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4402 "--cached", "-M", "HEAD", NULL
4405 static const char *status_diff_files_argv[] = {
4406 "git", "diff-files", "-z", NULL
4409 static const char *status_list_other_argv[] = {
4410 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4413 static const char *status_list_no_head_argv[] = {
4414 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4417 static const char *update_index_argv[] = {
4418 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4421 /* Restore the previous line number to stay in the context or select a
4422 * line with something that can be updated. */
4424 status_restore(struct view *view)
4426 if (view->p_lineno >= view->lines)
4427 view->p_lineno = view->lines - 1;
4428 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4430 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4433 /* If the above fails, always skip the "On branch" line. */
4434 if (view->p_lineno < view->lines)
4435 view->lineno = view->p_lineno;
4439 if (view->lineno < view->offset)
4440 view->offset = view->lineno;
4441 else if (view->offset + view->height <= view->lineno)
4442 view->offset = view->lineno - view->height + 1;
4444 view->p_restore = FALSE;
4447 /* First parse staged info using git-diff-index(1), then parse unstaged
4448 * info using git-diff-files(1), and finally untracked files using
4449 * git-ls-files(1). */
4451 status_open(struct view *view)
4455 add_line_data(view, NULL, LINE_STAT_HEAD);
4456 if (is_initial_commit())
4457 string_copy(status_onbranch, "Initial commit");
4458 else if (!*opt_head)
4459 string_copy(status_onbranch, "Not currently on any branch");
4460 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4463 run_io_bg(update_index_argv);
4465 if (is_initial_commit()) {
4466 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4468 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4472 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4473 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4476 /* Restore the exact position or use the specialized restore
4478 if (!view->p_restore)
4479 status_restore(view);
4484 status_draw(struct view *view, struct line *line, unsigned int lineno)
4486 struct status *status = line->data;
4487 enum line_type type;
4491 switch (line->type) {
4492 case LINE_STAT_STAGED:
4493 type = LINE_STAT_SECTION;
4494 text = "Changes to be committed:";
4497 case LINE_STAT_UNSTAGED:
4498 type = LINE_STAT_SECTION;
4499 text = "Changed but not updated:";
4502 case LINE_STAT_UNTRACKED:
4503 type = LINE_STAT_SECTION;
4504 text = "Untracked files:";
4507 case LINE_STAT_NONE:
4508 type = LINE_DEFAULT;
4509 text = " (no files)";
4512 case LINE_STAT_HEAD:
4513 type = LINE_STAT_HEAD;
4514 text = status_onbranch;
4521 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4523 buf[0] = status->status;
4524 if (draw_text(view, line->type, buf, TRUE))
4526 type = LINE_DEFAULT;
4527 text = status->new.name;
4530 draw_text(view, type, text, TRUE);
4535 status_enter(struct view *view, struct line *line)
4537 struct status *status = line->data;
4538 const char *oldpath = status ? status->old.name : NULL;
4539 /* Diffs for unmerged entries are empty when passing the new
4540 * path, so leave it empty. */
4541 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4543 enum open_flags split;
4544 struct view *stage = VIEW(REQ_VIEW_STAGE);
4546 if (line->type == LINE_STAT_NONE ||
4547 (!status && line[1].type == LINE_STAT_NONE)) {
4548 report("No file to diff");
4552 switch (line->type) {
4553 case LINE_STAT_STAGED:
4554 if (is_initial_commit()) {
4555 const char *no_head_diff_argv[] = {
4556 "git", "diff", "--no-color", "--patch-with-stat",
4557 "--", "/dev/null", newpath, NULL
4560 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4563 const char *index_show_argv[] = {
4564 "git", "diff-index", "--root", "--patch-with-stat",
4565 "-C", "-M", "--cached", "HEAD", "--",
4566 oldpath, newpath, NULL
4569 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4574 info = "Staged changes to %s";
4576 info = "Staged changes";
4579 case LINE_STAT_UNSTAGED:
4581 const char *files_show_argv[] = {
4582 "git", "diff-files", "--root", "--patch-with-stat",
4583 "-C", "-M", "--", oldpath, newpath, NULL
4586 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4589 info = "Unstaged changes to %s";
4591 info = "Unstaged changes";
4594 case LINE_STAT_UNTRACKED:
4596 report("No file to show");
4600 if (!suffixcmp(status->new.name, -1, "/")) {
4601 report("Cannot display a directory");
4605 if (!prepare_update_file(stage, newpath))
4607 info = "Untracked file %s";
4610 case LINE_STAT_HEAD:
4614 die("line type %d not handled in switch", line->type);
4617 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4618 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
4619 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4621 stage_status = *status;
4623 memset(&stage_status, 0, sizeof(stage_status));
4626 stage_line_type = line->type;
4628 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4635 status_exists(struct status *status, enum line_type type)
4637 struct view *view = VIEW(REQ_VIEW_STATUS);
4638 unsigned long lineno;
4640 for (lineno = 0; lineno < view->lines; lineno++) {
4641 struct line *line = &view->line[lineno];
4642 struct status *pos = line->data;
4644 if (line->type != type)
4646 if (!pos && (!status || !status->status) && line[1].data) {
4647 select_view_line(view, lineno);
4650 if (pos && !strcmp(status->new.name, pos->new.name)) {
4651 select_view_line(view, lineno);
4661 status_update_prepare(struct io *io, enum line_type type)
4663 const char *staged_argv[] = {
4664 "git", "update-index", "-z", "--index-info", NULL
4666 const char *others_argv[] = {
4667 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4671 case LINE_STAT_STAGED:
4672 return run_io(io, staged_argv, opt_cdup, IO_WR);
4674 case LINE_STAT_UNSTAGED:
4675 return run_io(io, others_argv, opt_cdup, IO_WR);
4677 case LINE_STAT_UNTRACKED:
4678 return run_io(io, others_argv, NULL, IO_WR);
4681 die("line type %d not handled in switch", type);
4687 status_update_write(struct io *io, struct status *status, enum line_type type)
4689 char buf[SIZEOF_STR];
4693 case LINE_STAT_STAGED:
4694 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4697 status->old.name, 0))
4701 case LINE_STAT_UNSTAGED:
4702 case LINE_STAT_UNTRACKED:
4703 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4708 die("line type %d not handled in switch", type);
4711 return io_write(io, buf, bufsize);
4715 status_update_file(struct status *status, enum line_type type)
4720 if (!status_update_prepare(&io, type))
4723 result = status_update_write(&io, status, type);
4729 status_update_files(struct view *view, struct line *line)
4733 struct line *pos = view->line + view->lines;
4737 if (!status_update_prepare(&io, line->type))
4740 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4743 for (file = 0, done = 0; result && file < files; line++, file++) {
4744 int almost_done = file * 100 / files;
4746 if (almost_done > done) {
4748 string_format(view->ref, "updating file %u of %u (%d%% done)",
4750 update_view_title(view);
4752 result = status_update_write(&io, line->data, line->type);
4760 status_update(struct view *view)
4762 struct line *line = &view->line[view->lineno];
4764 assert(view->lines);
4767 /* This should work even for the "On branch" line. */
4768 if (line < view->line + view->lines && !line[1].data) {
4769 report("Nothing to update");
4773 if (!status_update_files(view, line + 1)) {
4774 report("Failed to update file status");
4778 } else if (!status_update_file(line->data, line->type)) {
4779 report("Failed to update file status");
4787 status_revert(struct status *status, enum line_type type, bool has_none)
4789 if (!status || type != LINE_STAT_UNSTAGED) {
4790 if (type == LINE_STAT_STAGED) {
4791 report("Cannot revert changes to staged files");
4792 } else if (type == LINE_STAT_UNTRACKED) {
4793 report("Cannot revert changes to untracked files");
4794 } else if (has_none) {
4795 report("Nothing to revert");
4797 report("Cannot revert changes to multiple files");
4802 const char *checkout_argv[] = {
4803 "git", "checkout", "--", status->old.name, NULL
4806 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
4808 return run_io_fg(checkout_argv, opt_cdup);
4813 status_request(struct view *view, enum request request, struct line *line)
4815 struct status *status = line->data;
4818 case REQ_STATUS_UPDATE:
4819 if (!status_update(view))
4823 case REQ_STATUS_REVERT:
4824 if (!status_revert(status, line->type, status_has_none(view, line)))
4828 case REQ_STATUS_MERGE:
4829 if (!status || status->status != 'U') {
4830 report("Merging only possible for files with unmerged status ('U').");
4833 open_mergetool(status->new.name);
4839 if (status->status == 'D') {
4840 report("File has been deleted.");
4844 open_editor(status->status != '?', status->new.name);
4847 case REQ_VIEW_BLAME:
4849 string_copy(opt_file, status->new.name);
4855 /* After returning the status view has been split to
4856 * show the stage view. No further reloading is
4858 status_enter(view, line);
4862 /* Simply reload the view. */
4869 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4875 status_select(struct view *view, struct line *line)
4877 struct status *status = line->data;
4878 char file[SIZEOF_STR] = "all files";
4882 if (status && !string_format(file, "'%s'", status->new.name))
4885 if (!status && line[1].type == LINE_STAT_NONE)
4888 switch (line->type) {
4889 case LINE_STAT_STAGED:
4890 text = "Press %s to unstage %s for commit";
4893 case LINE_STAT_UNSTAGED:
4894 text = "Press %s to stage %s for commit";
4897 case LINE_STAT_UNTRACKED:
4898 text = "Press %s to stage %s for addition";
4901 case LINE_STAT_HEAD:
4902 case LINE_STAT_NONE:
4903 text = "Nothing to update";
4907 die("line type %d not handled in switch", line->type);
4910 if (status && status->status == 'U') {
4911 text = "Press %s to resolve conflict in %s";
4912 key = get_key(REQ_STATUS_MERGE);
4915 key = get_key(REQ_STATUS_UPDATE);
4918 string_format(view->ref, text, key, file);
4922 status_grep(struct view *view, struct line *line)
4924 struct status *status = line->data;
4925 enum { S_STATUS, S_NAME, S_END } state;
4932 for (state = S_STATUS; state < S_END; state++) {
4936 case S_NAME: text = status->new.name; break;
4938 buf[0] = status->status;
4946 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4953 static struct view_ops status_ops = {
4966 stage_diff_write(struct io *io, struct line *line, struct line *end)
4968 while (line < end) {
4969 if (!io_write(io, line->data, strlen(line->data)) ||
4970 !io_write(io, "\n", 1))
4973 if (line->type == LINE_DIFF_CHUNK ||
4974 line->type == LINE_DIFF_HEADER)
4981 static struct line *
4982 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4984 for (; view->line < line; line--)
4985 if (line->type == type)
4992 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
4994 const char *apply_argv[SIZEOF_ARG] = {
4995 "git", "apply", "--whitespace=nowarn", NULL
4997 struct line *diff_hdr;
5001 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5006 apply_argv[argc++] = "--cached";
5007 if (revert || stage_line_type == LINE_STAT_STAGED)
5008 apply_argv[argc++] = "-R";
5009 apply_argv[argc++] = "-";
5010 apply_argv[argc++] = NULL;
5011 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5014 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5015 !stage_diff_write(&io, chunk, view->line + view->lines))
5019 run_io_bg(update_index_argv);
5021 return chunk ? TRUE : FALSE;
5025 stage_update(struct view *view, struct line *line)
5027 struct line *chunk = NULL;
5029 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5030 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5033 if (!stage_apply_chunk(view, chunk, FALSE)) {
5034 report("Failed to apply chunk");
5038 } else if (!stage_status.status) {
5039 view = VIEW(REQ_VIEW_STATUS);
5041 for (line = view->line; line < view->line + view->lines; line++)
5042 if (line->type == stage_line_type)
5045 if (!status_update_files(view, line + 1)) {
5046 report("Failed to update files");
5050 } else if (!status_update_file(&stage_status, stage_line_type)) {
5051 report("Failed to update file");
5059 stage_revert(struct view *view, struct line *line)
5061 struct line *chunk = NULL;
5063 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5064 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5067 if (!prompt_yesno("Are you sure you want to revert changes?"))
5070 if (!stage_apply_chunk(view, chunk, TRUE)) {
5071 report("Failed to revert chunk");
5077 return status_revert(stage_status.status ? &stage_status : NULL,
5078 stage_line_type, FALSE);
5084 stage_next(struct view *view, struct line *line)
5088 if (!stage_chunks) {
5089 static size_t alloc = 0;
5092 for (line = view->line; line < view->line + view->lines; line++) {
5093 if (line->type != LINE_DIFF_CHUNK)
5096 tmp = realloc_items(stage_chunk, &alloc,
5097 stage_chunks, sizeof(*tmp));
5099 report("Allocation failure");
5104 stage_chunk[stage_chunks++] = line - view->line;
5108 for (i = 0; i < stage_chunks; i++) {
5109 if (stage_chunk[i] > view->lineno) {
5110 do_scroll_view(view, stage_chunk[i] - view->lineno);
5111 report("Chunk %d of %d", i + 1, stage_chunks);
5116 report("No next chunk found");
5120 stage_request(struct view *view, enum request request, struct line *line)
5123 case REQ_STATUS_UPDATE:
5124 if (!stage_update(view, line))
5128 case REQ_STATUS_REVERT:
5129 if (!stage_revert(view, line))
5133 case REQ_STAGE_NEXT:
5134 if (stage_line_type == LINE_STAT_UNTRACKED) {
5135 report("File is untracked; press %s to add",
5136 get_key(REQ_STATUS_UPDATE));
5139 stage_next(view, line);
5143 if (!stage_status.new.name[0])
5145 if (stage_status.status == 'D') {
5146 report("File has been deleted.");
5150 open_editor(stage_status.status != '?', stage_status.new.name);
5154 /* Reload everything ... */
5157 case REQ_VIEW_BLAME:
5158 if (stage_status.new.name[0]) {
5159 string_copy(opt_file, stage_status.new.name);
5165 return pager_request(view, request, line);
5171 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5172 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5174 /* Check whether the staged entry still exists, and close the
5175 * stage view if it doesn't. */
5176 if (!status_exists(&stage_status, stage_line_type)) {
5177 status_restore(VIEW(REQ_VIEW_STATUS));
5178 return REQ_VIEW_CLOSE;
5181 if (stage_line_type == LINE_STAT_UNTRACKED) {
5182 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5183 report("Cannot display a directory");
5187 if (!prepare_update_file(view, stage_status.new.name)) {
5188 report("Failed to open file: %s", strerror(errno));
5192 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5197 static struct view_ops stage_ops = {
5214 char id[SIZEOF_REV]; /* SHA1 ID. */
5215 char title[128]; /* First line of the commit message. */
5216 char author[75]; /* Author of the commit. */
5217 struct tm time; /* Date from the author ident. */
5218 struct ref **refs; /* Repository references. */
5219 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5220 size_t graph_size; /* The width of the graph array. */
5221 bool has_parents; /* Rewritten --parents seen. */
5224 /* Size of rev graph with no "padding" columns */
5225 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5228 struct rev_graph *prev, *next, *parents;
5229 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5231 struct commit *commit;
5233 unsigned int boundary:1;
5236 /* Parents of the commit being visualized. */
5237 static struct rev_graph graph_parents[4];
5239 /* The current stack of revisions on the graph. */
5240 static struct rev_graph graph_stacks[4] = {
5241 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5242 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5243 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5244 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5248 graph_parent_is_merge(struct rev_graph *graph)
5250 return graph->parents->size > 1;
5254 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5256 struct commit *commit = graph->commit;
5258 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5259 commit->graph[commit->graph_size++] = symbol;
5263 clear_rev_graph(struct rev_graph *graph)
5265 graph->boundary = 0;
5266 graph->size = graph->pos = 0;
5267 graph->commit = NULL;
5268 memset(graph->parents, 0, sizeof(*graph->parents));
5272 done_rev_graph(struct rev_graph *graph)
5274 if (graph_parent_is_merge(graph) &&
5275 graph->pos < graph->size - 1 &&
5276 graph->next->size == graph->size + graph->parents->size - 1) {
5277 size_t i = graph->pos + graph->parents->size - 1;
5279 graph->commit->graph_size = i * 2;
5280 while (i < graph->next->size - 1) {
5281 append_to_rev_graph(graph, ' ');
5282 append_to_rev_graph(graph, '\\');
5287 clear_rev_graph(graph);
5291 push_rev_graph(struct rev_graph *graph, const char *parent)
5295 /* "Collapse" duplicate parents lines.
5297 * FIXME: This needs to also update update the drawn graph but
5298 * for now it just serves as a method for pruning graph lines. */
5299 for (i = 0; i < graph->size; i++)
5300 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5303 if (graph->size < SIZEOF_REVITEMS) {
5304 string_copy_rev(graph->rev[graph->size++], parent);
5309 get_rev_graph_symbol(struct rev_graph *graph)
5313 if (graph->boundary)
5314 symbol = REVGRAPH_BOUND;
5315 else if (graph->parents->size == 0)
5316 symbol = REVGRAPH_INIT;
5317 else if (graph_parent_is_merge(graph))
5318 symbol = REVGRAPH_MERGE;
5319 else if (graph->pos >= graph->size)
5320 symbol = REVGRAPH_BRANCH;
5322 symbol = REVGRAPH_COMMIT;
5328 draw_rev_graph(struct rev_graph *graph)
5331 chtype separator, line;
5333 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5334 static struct rev_filler fillers[] = {
5340 chtype symbol = get_rev_graph_symbol(graph);
5341 struct rev_filler *filler;
5344 if (opt_line_graphics)
5345 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5347 filler = &fillers[DEFAULT];
5349 for (i = 0; i < graph->pos; i++) {
5350 append_to_rev_graph(graph, filler->line);
5351 if (graph_parent_is_merge(graph->prev) &&
5352 graph->prev->pos == i)
5353 filler = &fillers[RSHARP];
5355 append_to_rev_graph(graph, filler->separator);
5358 /* Place the symbol for this revision. */
5359 append_to_rev_graph(graph, symbol);
5361 if (graph->prev->size > graph->size)
5362 filler = &fillers[RDIAG];
5364 filler = &fillers[DEFAULT];
5368 for (; i < graph->size; i++) {
5369 append_to_rev_graph(graph, filler->separator);
5370 append_to_rev_graph(graph, filler->line);
5371 if (graph_parent_is_merge(graph->prev) &&
5372 i < graph->prev->pos + graph->parents->size)
5373 filler = &fillers[RSHARP];
5374 if (graph->prev->size > graph->size)
5375 filler = &fillers[LDIAG];
5378 if (graph->prev->size > graph->size) {
5379 append_to_rev_graph(graph, filler->separator);
5380 if (filler->line != ' ')
5381 append_to_rev_graph(graph, filler->line);
5385 /* Prepare the next rev graph */
5387 prepare_rev_graph(struct rev_graph *graph)
5391 /* First, traverse all lines of revisions up to the active one. */
5392 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5393 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5396 push_rev_graph(graph->next, graph->rev[graph->pos]);
5399 /* Interleave the new revision parent(s). */
5400 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5401 push_rev_graph(graph->next, graph->parents->rev[i]);
5403 /* Lastly, put any remaining revisions. */
5404 for (i = graph->pos + 1; i < graph->size; i++)
5405 push_rev_graph(graph->next, graph->rev[i]);
5409 update_rev_graph(struct view *view, struct rev_graph *graph)
5411 /* If this is the finalizing update ... */
5413 prepare_rev_graph(graph);
5415 /* Graph visualization needs a one rev look-ahead,
5416 * so the first update doesn't visualize anything. */
5417 if (!graph->prev->commit)
5420 if (view->lines > 2)
5421 view->line[view->lines - 3].dirty = 1;
5422 if (view->lines > 1)
5423 view->line[view->lines - 2].dirty = 1;
5424 draw_rev_graph(graph->prev);
5425 done_rev_graph(graph->prev->prev);
5433 static const char *main_argv[SIZEOF_ARG] = {
5434 "git", "log", "--no-color", "--pretty=raw", "--parents",
5435 "--topo-order", "%(head)", NULL
5439 main_draw(struct view *view, struct line *line, unsigned int lineno)
5441 struct commit *commit = line->data;
5443 if (!*commit->author)
5446 if (opt_date && draw_date(view, &commit->time))
5450 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5453 if (opt_rev_graph && commit->graph_size &&
5454 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5457 if (opt_show_refs && commit->refs) {
5461 enum line_type type;
5463 if (commit->refs[i]->head)
5464 type = LINE_MAIN_HEAD;
5465 else if (commit->refs[i]->ltag)
5466 type = LINE_MAIN_LOCAL_TAG;
5467 else if (commit->refs[i]->tag)
5468 type = LINE_MAIN_TAG;
5469 else if (commit->refs[i]->tracked)
5470 type = LINE_MAIN_TRACKED;
5471 else if (commit->refs[i]->remote)
5472 type = LINE_MAIN_REMOTE;
5474 type = LINE_MAIN_REF;
5476 if (draw_text(view, type, "[", TRUE) ||
5477 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5478 draw_text(view, type, "]", TRUE))
5481 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5483 } while (commit->refs[i++]->next);
5486 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5490 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5492 main_read(struct view *view, char *line)
5494 static struct rev_graph *graph = graph_stacks;
5495 enum line_type type;
5496 struct commit *commit;
5501 if (!view->lines && !view->parent)
5502 die("No revisions match the given arguments.");
5503 if (view->lines > 0) {
5504 commit = view->line[view->lines - 1].data;
5505 view->line[view->lines - 1].dirty = 1;
5506 if (!*commit->author) {
5509 graph->commit = NULL;
5512 update_rev_graph(view, graph);
5514 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5515 clear_rev_graph(&graph_stacks[i]);
5519 type = get_line_type(line);
5520 if (type == LINE_COMMIT) {
5521 commit = calloc(1, sizeof(struct commit));
5525 line += STRING_SIZE("commit ");
5527 graph->boundary = 1;
5531 string_copy_rev(commit->id, line);
5532 commit->refs = get_refs(commit->id);
5533 graph->commit = commit;
5534 add_line_data(view, commit, LINE_MAIN_COMMIT);
5536 while ((line = strchr(line, ' '))) {
5538 push_rev_graph(graph->parents, line);
5539 commit->has_parents = TRUE;
5546 commit = view->line[view->lines - 1].data;
5550 if (commit->has_parents)
5552 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5557 /* Parse author lines where the name may be empty:
5558 * author <email@address.tld> 1138474660 +0100
5560 char *ident = line + STRING_SIZE("author ");
5561 char *nameend = strchr(ident, '<');
5562 char *emailend = strchr(ident, '>');
5564 if (!nameend || !emailend)
5567 update_rev_graph(view, graph);
5568 graph = graph->next;
5570 *nameend = *emailend = 0;
5571 ident = chomp_string(ident);
5573 ident = chomp_string(nameend + 1);
5578 string_ncopy(commit->author, ident, strlen(ident));
5579 view->line[view->lines - 1].dirty = 1;
5581 /* Parse epoch and timezone */
5582 if (emailend[1] == ' ') {
5583 char *secs = emailend + 2;
5584 char *zone = strchr(secs, ' ');
5585 time_t time = (time_t) atol(secs);
5587 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5591 tz = ('0' - zone[1]) * 60 * 60 * 10;
5592 tz += ('0' - zone[2]) * 60 * 60;
5593 tz += ('0' - zone[3]) * 60;
5594 tz += ('0' - zone[4]) * 60;
5602 gmtime_r(&time, &commit->time);
5607 /* Fill in the commit title if it has not already been set. */
5608 if (commit->title[0])
5611 /* Require titles to start with a non-space character at the
5612 * offset used by git log. */
5613 if (strncmp(line, " ", 4))
5616 /* Well, if the title starts with a whitespace character,
5617 * try to be forgiving. Otherwise we end up with no title. */
5618 while (isspace(*line))
5622 /* FIXME: More graceful handling of titles; append "..." to
5623 * shortened titles, etc. */
5625 string_ncopy(commit->title, line, strlen(line));
5626 view->line[view->lines - 1].dirty = 1;
5633 main_request(struct view *view, enum request request, struct line *line)
5635 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5639 open_view(view, REQ_VIEW_DIFF, flags);
5643 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5653 grep_refs(struct ref **refs, regex_t *regex)
5661 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5663 } while (refs[i++]->next);
5669 main_grep(struct view *view, struct line *line)
5671 struct commit *commit = line->data;
5672 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5673 char buf[DATE_COLS + 1];
5676 for (state = S_TITLE; state < S_END; state++) {
5680 case S_TITLE: text = commit->title; break;
5684 text = commit->author;
5689 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5696 if (grep_refs(commit->refs, view->regex) == TRUE)
5703 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5711 main_select(struct view *view, struct line *line)
5713 struct commit *commit = line->data;
5715 string_copy_rev(view->ref, commit->id);
5716 string_copy_rev(ref_commit, view->ref);
5719 static struct view_ops main_ops = {
5732 * Unicode / UTF-8 handling
5734 * NOTE: Much of the following code for dealing with unicode is derived from
5735 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5736 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5739 /* I've (over)annotated a lot of code snippets because I am not entirely
5740 * confident that the approach taken by this small UTF-8 interface is correct.
5744 unicode_width(unsigned long c)
5747 (c <= 0x115f /* Hangul Jamo */
5750 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5752 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5753 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5754 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5755 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5756 || (c >= 0xffe0 && c <= 0xffe6)
5757 || (c >= 0x20000 && c <= 0x2fffd)
5758 || (c >= 0x30000 && c <= 0x3fffd)))
5762 return opt_tab_size;
5767 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5768 * Illegal bytes are set one. */
5769 static const unsigned char utf8_bytes[256] = {
5770 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,
5771 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,
5772 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,
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 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,
5777 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,
5780 /* Decode UTF-8 multi-byte representation into a unicode character. */
5781 static inline unsigned long
5782 utf8_to_unicode(const char *string, size_t length)
5784 unsigned long unicode;
5788 unicode = string[0];
5791 unicode = (string[0] & 0x1f) << 6;
5792 unicode += (string[1] & 0x3f);
5795 unicode = (string[0] & 0x0f) << 12;
5796 unicode += ((string[1] & 0x3f) << 6);
5797 unicode += (string[2] & 0x3f);
5800 unicode = (string[0] & 0x0f) << 18;
5801 unicode += ((string[1] & 0x3f) << 12);
5802 unicode += ((string[2] & 0x3f) << 6);
5803 unicode += (string[3] & 0x3f);
5806 unicode = (string[0] & 0x0f) << 24;
5807 unicode += ((string[1] & 0x3f) << 18);
5808 unicode += ((string[2] & 0x3f) << 12);
5809 unicode += ((string[3] & 0x3f) << 6);
5810 unicode += (string[4] & 0x3f);
5813 unicode = (string[0] & 0x01) << 30;
5814 unicode += ((string[1] & 0x3f) << 24);
5815 unicode += ((string[2] & 0x3f) << 18);
5816 unicode += ((string[3] & 0x3f) << 12);
5817 unicode += ((string[4] & 0x3f) << 6);
5818 unicode += (string[5] & 0x3f);
5821 die("Invalid unicode length");
5824 /* Invalid characters could return the special 0xfffd value but NUL
5825 * should be just as good. */
5826 return unicode > 0xffff ? 0 : unicode;
5829 /* Calculates how much of string can be shown within the given maximum width
5830 * and sets trimmed parameter to non-zero value if all of string could not be
5831 * shown. If the reserve flag is TRUE, it will reserve at least one
5832 * trailing character, which can be useful when drawing a delimiter.
5834 * Returns the number of bytes to output from string to satisfy max_width. */
5836 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5838 const char *start = string;
5839 const char *end = strchr(string, '\0');
5840 unsigned char last_bytes = 0;
5841 size_t last_ucwidth = 0;
5846 while (string < end) {
5847 int c = *(unsigned char *) string;
5848 unsigned char bytes = utf8_bytes[c];
5850 unsigned long unicode;
5852 if (string + bytes > end)
5855 /* Change representation to figure out whether
5856 * it is a single- or double-width character. */
5858 unicode = utf8_to_unicode(string, bytes);
5859 /* FIXME: Graceful handling of invalid unicode character. */
5863 ucwidth = unicode_width(unicode);
5865 if (*width > max_width) {
5868 if (reserve && *width == max_width) {
5869 string -= last_bytes;
5870 *width -= last_ucwidth;
5877 last_ucwidth = ucwidth;
5880 return string - start;
5888 /* Whether or not the curses interface has been initialized. */
5889 static bool cursed = FALSE;
5891 /* The status window is used for polling keystrokes. */
5892 static WINDOW *status_win;
5894 static bool status_empty = TRUE;
5896 /* Update status and title window. */
5898 report(const char *msg, ...)
5900 struct view *view = display[current_view];
5906 char buf[SIZEOF_STR];
5909 va_start(args, msg);
5910 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5911 buf[sizeof(buf) - 1] = 0;
5912 buf[sizeof(buf) - 2] = '.';
5913 buf[sizeof(buf) - 3] = '.';
5914 buf[sizeof(buf) - 4] = '.';
5920 if (!status_empty || *msg) {
5923 va_start(args, msg);
5925 wmove(status_win, 0, 0);
5927 vwprintw(status_win, msg, args);
5928 status_empty = FALSE;
5930 status_empty = TRUE;
5932 wclrtoeol(status_win);
5933 wrefresh(status_win);
5938 update_view_title(view);
5939 update_display_cursor(view);
5942 /* Controls when nodelay should be in effect when polling user input. */
5944 set_nonblocking_input(bool loading)
5946 static unsigned int loading_views;
5948 if ((loading == FALSE && loading_views-- == 1) ||
5949 (loading == TRUE && loading_views++ == 0))
5950 nodelay(status_win, loading);
5958 /* Initialize the curses library */
5959 if (isatty(STDIN_FILENO)) {
5960 cursed = !!initscr();
5963 /* Leave stdin and stdout alone when acting as a pager. */
5964 opt_tty = fopen("/dev/tty", "r+");
5966 die("Failed to open /dev/tty");
5967 cursed = !!newterm(NULL, opt_tty, opt_tty);
5971 die("Failed to initialize curses");
5973 nonl(); /* Tell curses not to do NL->CR/NL on output */
5974 cbreak(); /* Take input chars one at a time, no wait for \n */
5975 noecho(); /* Don't echo input */
5976 leaveok(stdscr, TRUE);
5981 getmaxyx(stdscr, y, x);
5982 status_win = newwin(1, 0, y - 1, 0);
5984 die("Failed to create status window");
5986 /* Enable keyboard mapping */
5987 keypad(status_win, TRUE);
5988 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5990 TABSIZE = opt_tab_size;
5991 if (opt_line_graphics) {
5992 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5997 get_input(bool prompting)
6006 foreach_view (view, i)
6009 /* Refresh, accept single keystroke of input */
6010 key = wgetch(status_win);
6012 /* wgetch() with nodelay() enabled returns ERR when
6013 * there's no input. */
6017 } else if (key == KEY_RESIZE) {
6020 getmaxyx(stdscr, height, width);
6022 /* Resize the status view and let the view driver take
6023 * care of resizing the displayed views. */
6025 redraw_display(TRUE);
6026 wresize(status_win, 1, width);
6027 mvwin(status_win, height - 1, 0);
6028 wrefresh(status_win);
6038 prompt_yesno(const char *prompt)
6040 enum { WAIT, STOP, CANCEL } status = WAIT;
6041 bool answer = FALSE;
6043 while (status == WAIT) {
6046 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
6047 wclrtoeol(status_win);
6049 key = get_input(TRUE);
6070 /* Clear the status window */
6071 status_empty = FALSE;
6078 read_prompt(const char *prompt)
6080 enum { READING, STOP, CANCEL } status = READING;
6081 static char buf[SIZEOF_STR];
6084 while (status == READING) {
6087 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6088 wclrtoeol(status_win);
6090 key = get_input(TRUE);
6095 status = pos ? STOP : CANCEL;
6110 if (pos >= sizeof(buf)) {
6111 report("Input string too long");
6116 buf[pos++] = (char) key;
6120 /* Clear the status window */
6121 status_empty = FALSE;
6124 if (status == CANCEL)
6133 * Repository properties
6137 git_properties(const char **argv, const char *separators,
6138 int (*read_property)(char *, size_t, char *, size_t))
6142 if (init_io_rd(&io, argv, NULL, FORMAT_NONE))
6143 return read_properties(&io, separators, read_property);
6147 static struct ref *refs = NULL;
6148 static size_t refs_alloc = 0;
6149 static size_t refs_size = 0;
6151 /* Id <-> ref store */
6152 static struct ref ***id_refs = NULL;
6153 static size_t id_refs_alloc = 0;
6154 static size_t id_refs_size = 0;
6157 compare_refs(const void *ref1_, const void *ref2_)
6159 const struct ref *ref1 = *(const struct ref **)ref1_;
6160 const struct ref *ref2 = *(const struct ref **)ref2_;
6162 if (ref1->tag != ref2->tag)
6163 return ref2->tag - ref1->tag;
6164 if (ref1->ltag != ref2->ltag)
6165 return ref2->ltag - ref2->ltag;
6166 if (ref1->head != ref2->head)
6167 return ref2->head - ref1->head;
6168 if (ref1->tracked != ref2->tracked)
6169 return ref2->tracked - ref1->tracked;
6170 if (ref1->remote != ref2->remote)
6171 return ref2->remote - ref1->remote;
6172 return strcmp(ref1->name, ref2->name);
6175 static struct ref **
6176 get_refs(const char *id)
6178 struct ref ***tmp_id_refs;
6179 struct ref **ref_list = NULL;
6180 size_t ref_list_alloc = 0;
6181 size_t ref_list_size = 0;
6184 for (i = 0; i < id_refs_size; i++)
6185 if (!strcmp(id, id_refs[i][0]->id))
6188 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6193 id_refs = tmp_id_refs;
6195 for (i = 0; i < refs_size; i++) {
6198 if (strcmp(id, refs[i].id))
6201 tmp = realloc_items(ref_list, &ref_list_alloc,
6202 ref_list_size + 1, sizeof(*ref_list));
6210 ref_list[ref_list_size] = &refs[i];
6211 /* XXX: The properties of the commit chains ensures that we can
6212 * safely modify the shared ref. The repo references will
6213 * always be similar for the same id. */
6214 ref_list[ref_list_size]->next = 1;
6220 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6221 ref_list[ref_list_size - 1]->next = 0;
6222 id_refs[id_refs_size++] = ref_list;
6229 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6234 bool remote = FALSE;
6235 bool tracked = FALSE;
6236 bool check_replace = FALSE;
6239 if (!prefixcmp(name, "refs/tags/")) {
6240 if (!suffixcmp(name, namelen, "^{}")) {
6243 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6244 check_replace = TRUE;
6250 namelen -= STRING_SIZE("refs/tags/");
6251 name += STRING_SIZE("refs/tags/");
6253 } else if (!prefixcmp(name, "refs/remotes/")) {
6255 namelen -= STRING_SIZE("refs/remotes/");
6256 name += STRING_SIZE("refs/remotes/");
6257 tracked = !strcmp(opt_remote, name);
6259 } else if (!prefixcmp(name, "refs/heads/")) {
6260 namelen -= STRING_SIZE("refs/heads/");
6261 name += STRING_SIZE("refs/heads/");
6262 head = !strncmp(opt_head, name, namelen);
6264 } else if (!strcmp(name, "HEAD")) {
6265 string_ncopy(opt_head_rev, id, idlen);
6269 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6270 /* it's an annotated tag, replace the previous sha1 with the
6271 * resolved commit id; relies on the fact git-ls-remote lists
6272 * the commit id of an annotated tag right before the commit id
6274 refs[refs_size - 1].ltag = ltag;
6275 string_copy_rev(refs[refs_size - 1].id, id);
6279 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6283 ref = &refs[refs_size++];
6284 ref->name = malloc(namelen + 1);
6288 strncpy(ref->name, name, namelen);
6289 ref->name[namelen] = 0;
6293 ref->remote = remote;
6294 ref->tracked = tracked;
6295 string_copy_rev(ref->id, id);
6303 static const char *ls_remote_argv[SIZEOF_ARG] = {
6304 "git", "ls-remote", ".", NULL
6306 static bool init = FALSE;
6309 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6316 while (refs_size > 0)
6317 free(refs[--refs_size].name);
6318 while (id_refs_size > 0)
6319 free(id_refs[--id_refs_size]);
6321 return git_properties(ls_remote_argv, "\t", read_ref);
6325 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6327 if (!strcmp(name, "i18n.commitencoding"))
6328 string_ncopy(opt_encoding, value, valuelen);
6330 if (!strcmp(name, "core.editor"))
6331 string_ncopy(opt_editor, value, valuelen);
6333 /* branch.<head>.remote */
6335 !strncmp(name, "branch.", 7) &&
6336 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6337 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6338 string_ncopy(opt_remote, value, valuelen);
6340 if (*opt_head && *opt_remote &&
6341 !strncmp(name, "branch.", 7) &&
6342 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6343 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6344 size_t from = strlen(opt_remote);
6346 if (!prefixcmp(value, "refs/heads/")) {
6347 value += STRING_SIZE("refs/heads/");
6348 valuelen -= STRING_SIZE("refs/heads/");
6351 if (!string_format_from(opt_remote, &from, "/%s", value))
6359 load_git_config(void)
6361 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6363 return git_properties(config_list_argv, "=", read_repo_config_option);
6367 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6369 if (!opt_git_dir[0]) {
6370 string_ncopy(opt_git_dir, name, namelen);
6372 } else if (opt_is_inside_work_tree == -1) {
6373 /* This can be 3 different values depending on the
6374 * version of git being used. If git-rev-parse does not
6375 * understand --is-inside-work-tree it will simply echo
6376 * the option else either "true" or "false" is printed.
6377 * Default to true for the unknown case. */
6378 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6380 string_ncopy(opt_cdup, name, namelen);
6387 load_repo_info(void)
6389 const char *head_argv[] = {
6390 "git", "symbolic-ref", "HEAD", NULL
6392 const char *rev_parse_argv[] = {
6393 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6397 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6398 chomp_string(opt_head);
6399 if (!prefixcmp(opt_head, "refs/heads/")) {
6400 char *offset = opt_head + STRING_SIZE("refs/heads/");
6402 memmove(opt_head, offset, strlen(offset) + 1);
6406 return git_properties(rev_parse_argv, "=", read_repo_info);
6410 read_properties(struct io *io, const char *separators,
6411 int (*read_property)(char *, size_t, char *, size_t))
6419 while (state == OK && (name = io_get(io, '\n', TRUE))) {
6424 name = chomp_string(name);
6425 namelen = strcspn(name, separators);
6427 if (name[namelen]) {
6429 value = chomp_string(name + namelen + 1);
6430 valuelen = strlen(value);
6437 state = read_property(name, namelen, value, valuelen);
6440 if (state != ERR && io_error(io))
6452 static void __NORETURN
6455 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6461 static void __NORETURN
6462 die(const char *err, ...)
6468 va_start(args, err);
6469 fputs("tig: ", stderr);
6470 vfprintf(stderr, err, args);
6471 fputs("\n", stderr);
6478 warn(const char *msg, ...)
6482 va_start(args, msg);
6483 fputs("tig warning: ", stderr);
6484 vfprintf(stderr, msg, args);
6485 fputs("\n", stderr);
6490 main(int argc, const char *argv[])
6492 const char **run_argv = NULL;
6494 enum request request;
6497 signal(SIGINT, quit);
6499 if (setlocale(LC_ALL, "")) {
6500 char *codeset = nl_langinfo(CODESET);
6502 string_ncopy(opt_codeset, codeset, strlen(codeset));
6505 if (load_repo_info() == ERR)
6506 die("Failed to load repo info.");
6508 if (load_options() == ERR)
6509 die("Failed to load user config.");
6511 if (load_git_config() == ERR)
6512 die("Failed to load repo config.");
6514 request = parse_options(argc, argv, &run_argv);
6515 if (request == REQ_NONE)
6518 /* Require a git repository unless when running in pager mode. */
6519 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6520 die("Not a git repository");
6522 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6525 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6526 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6527 if (opt_iconv == ICONV_NONE)
6528 die("Failed to initialize character set conversion");
6531 if (load_refs() == ERR)
6532 die("Failed to load refs.");
6534 foreach_view (view, i)
6535 argv_from_env(view->ops->argv, view->cmd_env);
6539 if (request == REQ_VIEW_PAGER || run_argv) {
6540 if (request == REQ_VIEW_PAGER)
6541 io_open(&VIEW(request)->io, "");
6542 else if (!prepare_update(VIEW(request), run_argv, NULL, FORMAT_NONE))
6543 die("Failed to format arguments");
6544 open_view(NULL, request, OPEN_PREPARED);
6548 while (view_driver(display[current_view], request)) {
6549 int key = get_input(FALSE);
6551 view = display[current_view];
6552 request = get_keybinding(view->keymap, key);
6554 /* Some low-level request handling. This keeps access to
6555 * status_win restricted. */
6559 char *cmd = read_prompt(":");
6562 struct view *next = VIEW(REQ_VIEW_PAGER);
6563 const char *argv[SIZEOF_ARG] = { "git" };
6566 /* When running random commands, initially show the
6567 * command in the title. However, it maybe later be
6568 * overwritten if a commit line is selected. */
6569 string_ncopy(next->ref, cmd, strlen(cmd));
6571 if (!argv_from_string(argv, &argc, cmd)) {
6572 report("Too many arguments");
6573 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6574 report("Failed to format command");
6576 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6584 case REQ_SEARCH_BACK:
6586 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6587 char *search = read_prompt(prompt);
6590 string_ncopy(opt_search, search, strlen(search));