1 /* Copyright (c) 2006-2009 Jonas Fonseca <fonseca@diku.dk>
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License as
5 * published by the Free Software Foundation; either version 2 of
6 * the License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
19 #define TIG_VERSION "unknown-version"
34 #include <sys/types.h>
37 #include <sys/select.h>
48 /* ncurses(3): Must be defined to have extended wide-character functions. */
49 #define _XOPEN_SOURCE_EXTENDED
51 #ifdef HAVE_NCURSESW_NCURSES_H
52 #include <ncursesw/ncurses.h>
54 #ifdef HAVE_NCURSES_NCURSES_H
55 #include <ncurses/ncurses.h>
62 #define __NORETURN __attribute__((__noreturn__))
67 static void __NORETURN die(const char *err, ...);
68 static void warn(const char *msg, ...);
69 static void report(const char *msg, ...);
70 static void set_nonblocking_input(bool loading);
71 static size_t utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve);
72 static bool prompt_yesno(const char *prompt);
73 static int load_refs(void);
75 #define ABS(x) ((x) >= 0 ? (x) : -(x))
76 #define MIN(x, y) ((x) < (y) ? (x) : (y))
78 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
79 #define STRING_SIZE(x) (sizeof(x) - 1)
81 #define SIZEOF_STR 1024 /* Default string size. */
82 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
83 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL. */
84 #define SIZEOF_ARG 32 /* Default argument array size. */
88 #define REVGRAPH_INIT 'I'
89 #define REVGRAPH_MERGE 'M'
90 #define REVGRAPH_BRANCH '+'
91 #define REVGRAPH_COMMIT '*'
92 #define REVGRAPH_BOUND '^'
94 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
96 /* This color name can be used to refer to the default term colors. */
97 #define COLOR_DEFAULT (-1)
99 #define ICONV_NONE ((iconv_t) -1)
101 #define ICONV_CONST /* nothing */
104 /* The format and size of the date column in the main view. */
105 #define DATE_FORMAT "%Y-%m-%d %H:%M"
106 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
108 #define AUTHOR_COLS 20
111 /* The default interval between line numbers. */
112 #define NUMBER_INTERVAL 5
116 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
118 #define NULL_ID "0000000000000000000000000000000000000000"
121 #define GIT_CONFIG "config"
124 /* Some ascii-shorthands fitted into the ncurses namespace. */
126 #define KEY_RETURN '\r'
131 char *name; /* Ref name; tag or head names are shortened. */
132 char id[SIZEOF_REV]; /* Commit SHA1 ID */
133 unsigned int head:1; /* Is it the current HEAD? */
134 unsigned int tag:1; /* Is it a tag? */
135 unsigned int ltag:1; /* If so, is the tag local? */
136 unsigned int remote:1; /* Is it a remote ref? */
137 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
138 unsigned int next:1; /* For ref lists: are there more refs? */
141 static struct ref **get_refs(const char *id);
144 FORMAT_ALL, /* Perform replacement in all arguments. */
145 FORMAT_DASH, /* Perform replacement up until "--". */
146 FORMAT_NONE /* No replacement should be performed. */
149 static bool format_argv(const char *dst[], const char *src[], enum format_flags flags);
158 set_from_int_map(struct int_map *map, size_t map_size,
159 int *value, const char *name, int namelen)
164 for (i = 0; i < map_size; i++)
165 if (namelen == map[i].namelen &&
166 !strncasecmp(name, map[i].name, namelen)) {
167 *value = map[i].value;
180 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
182 if (srclen > dstlen - 1)
185 strncpy(dst, src, srclen);
189 /* Shorthands for safely copying into a fixed buffer. */
191 #define string_copy(dst, src) \
192 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
194 #define string_ncopy(dst, src, srclen) \
195 string_ncopy_do(dst, sizeof(dst), src, srclen)
197 #define string_copy_rev(dst, src) \
198 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
200 #define string_add(dst, from, src) \
201 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
204 chomp_string(char *name)
208 while (isspace(*name))
211 namelen = strlen(name) - 1;
212 while (namelen > 0 && isspace(name[namelen]))
219 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
222 size_t pos = bufpos ? *bufpos : 0;
225 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
231 return pos >= bufsize ? FALSE : TRUE;
234 #define string_format(buf, fmt, args...) \
235 string_nformat(buf, sizeof(buf), NULL, fmt, args)
237 #define string_format_from(buf, from, fmt, args...) \
238 string_nformat(buf, sizeof(buf), from, fmt, args)
241 string_enum_compare(const char *str1, const char *str2, int len)
245 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
247 /* Diff-Header == DIFF_HEADER */
248 for (i = 0; i < len; i++) {
249 if (toupper(str1[i]) == toupper(str2[i]))
252 if (string_enum_sep(str1[i]) &&
253 string_enum_sep(str2[i]))
256 return str1[i] - str2[i];
262 #define prefixcmp(str1, str2) \
263 strncmp(str1, str2, STRING_SIZE(str2))
266 suffixcmp(const char *str, int slen, const char *suffix)
268 size_t len = slen >= 0 ? slen : strlen(str);
269 size_t suffixlen = strlen(suffix);
271 return suffixlen < len ? strcmp(str + len - suffixlen, suffix) : -1;
276 argv_from_string(const char *argv[SIZEOF_ARG], int *argc, char *cmd)
280 while (*cmd && *argc < SIZEOF_ARG && (valuelen = strcspn(cmd, " \t"))) {
281 bool advance = cmd[valuelen] != 0;
284 argv[(*argc)++] = chomp_string(cmd);
285 cmd += valuelen + advance;
288 if (*argc < SIZEOF_ARG)
290 return *argc < SIZEOF_ARG;
294 argv_from_env(const char **argv, const char *name)
296 char *env = argv ? getenv(name) : NULL;
301 if (env && !argv_from_string(argv, &argc, env))
302 die("Too many arguments in the `%s` environment variable", name);
307 * Executing external commands.
311 IO_FD, /* File descriptor based IO. */
312 IO_BG, /* Execute command in the background. */
313 IO_FG, /* Execute command with same std{in,out,err}. */
314 IO_RD, /* Read only fork+exec IO. */
315 IO_WR, /* Write only fork+exec IO. */
316 IO_AP, /* Append fork+exec output to file. */
320 enum io_type type; /* The requested type of pipe. */
321 const char *dir; /* Directory from which to execute. */
322 pid_t pid; /* Pipe for reading or writing. */
323 int pipe; /* Pipe end for reading or writing. */
324 int error; /* Error status. */
325 const char *argv[SIZEOF_ARG]; /* Shell command arguments. */
326 char *buf; /* Read buffer. */
327 size_t bufalloc; /* Allocated buffer size. */
328 size_t bufsize; /* Buffer content size. */
329 char *bufpos; /* Current buffer position. */
330 unsigned int eof:1; /* Has end of file been reached. */
334 reset_io(struct io *io)
338 io->buf = io->bufpos = NULL;
339 io->bufalloc = io->bufsize = 0;
345 init_io(struct io *io, const char *dir, enum io_type type)
353 init_io_rd(struct io *io, const char *argv[], const char *dir,
354 enum format_flags flags)
356 init_io(io, dir, IO_RD);
357 return format_argv(io->argv, argv, flags);
361 io_open(struct io *io, const char *name)
363 init_io(io, NULL, IO_FD);
364 io->pipe = *name ? open(name, O_RDONLY) : STDIN_FILENO;
365 return io->pipe != -1;
369 kill_io(struct io *io)
371 return io->pid == 0 || kill(io->pid, SIGKILL) != -1;
375 done_io(struct io *io)
386 pid_t waiting = waitpid(pid, &status, 0);
391 report("waitpid failed (%s)", strerror(errno));
395 return waiting == pid &&
396 !WIFSIGNALED(status) &&
398 !WEXITSTATUS(status);
405 start_io(struct io *io)
407 int pipefds[2] = { -1, -1 };
409 if (io->type == IO_FD)
412 if ((io->type == IO_RD || io->type == IO_WR) &&
415 else if (io->type == IO_AP)
416 pipefds[1] = io->pipe;
418 if ((io->pid = fork())) {
419 if (pipefds[!(io->type == IO_WR)] != -1)
420 close(pipefds[!(io->type == IO_WR)]);
422 io->pipe = pipefds[!!(io->type == IO_WR)];
427 if (io->type != IO_FG) {
428 int devnull = open("/dev/null", O_RDWR);
429 int readfd = io->type == IO_WR ? pipefds[0] : devnull;
430 int writefd = (io->type == IO_RD || io->type == IO_AP)
431 ? pipefds[1] : devnull;
433 dup2(readfd, STDIN_FILENO);
434 dup2(writefd, STDOUT_FILENO);
435 dup2(devnull, STDERR_FILENO);
438 if (pipefds[0] != -1)
440 if (pipefds[1] != -1)
444 if (io->dir && *io->dir && chdir(io->dir) == -1)
445 die("Failed to change directory: %s", strerror(errno));
447 execvp(io->argv[0], (char *const*) io->argv);
448 die("Failed to execute program: %s", strerror(errno));
451 if (pipefds[!!(io->type == IO_WR)] != -1)
452 close(pipefds[!!(io->type == IO_WR)]);
457 run_io(struct io *io, const char **argv, const char *dir, enum io_type type)
459 init_io(io, dir, type);
460 if (!format_argv(io->argv, argv, FORMAT_NONE))
466 run_io_do(struct io *io)
468 return start_io(io) && done_io(io);
472 run_io_bg(const char **argv)
476 init_io(&io, NULL, IO_BG);
477 if (!format_argv(io.argv, argv, FORMAT_NONE))
479 return run_io_do(&io);
483 run_io_fg(const char **argv, const char *dir)
487 init_io(&io, dir, IO_FG);
488 if (!format_argv(io.argv, argv, FORMAT_NONE))
490 return run_io_do(&io);
494 run_io_append(const char **argv, enum format_flags flags, int fd)
498 init_io(&io, NULL, IO_AP);
500 if (format_argv(io.argv, argv, flags))
501 return run_io_do(&io);
507 run_io_rd(struct io *io, const char **argv, enum format_flags flags)
509 return init_io_rd(io, argv, NULL, flags) && start_io(io);
513 io_eof(struct io *io)
519 io_error(struct io *io)
525 io_strerror(struct io *io)
527 return strerror(io->error);
531 io_can_read(struct io *io)
533 struct timeval tv = { 0, 500 };
537 FD_SET(io->pipe, &fds);
539 return select(io->pipe + 1, &fds, NULL, NULL, &tv) > 0;
543 io_read(struct io *io, void *buf, size_t bufsize)
546 ssize_t readsize = read(io->pipe, buf, bufsize);
548 if (readsize < 0 && (errno == EAGAIN || errno == EINTR))
550 else if (readsize == -1)
552 else if (readsize == 0)
559 io_get(struct io *io, int c, bool can_read)
565 io->buf = io->bufpos = malloc(BUFSIZ);
568 io->bufalloc = BUFSIZ;
573 if (io->bufsize > 0) {
574 eol = memchr(io->bufpos, c, io->bufsize);
576 char *line = io->bufpos;
579 io->bufpos = eol + 1;
580 io->bufsize -= io->bufpos - line;
587 io->bufpos[io->bufsize] = 0;
597 if (io->bufsize > 0 && io->bufpos > io->buf)
598 memmove(io->buf, io->bufpos, io->bufsize);
600 io->bufpos = io->buf;
601 readsize = io_read(io, io->buf + io->bufsize, io->bufalloc - io->bufsize);
604 io->bufsize += readsize;
609 io_write(struct io *io, const void *buf, size_t bufsize)
613 while (!io_error(io) && written < bufsize) {
616 size = write(io->pipe, buf + written, bufsize - written);
617 if (size < 0 && (errno == EAGAIN || errno == EINTR))
625 return written == bufsize;
629 run_io_buf(const char **argv, char buf[], size_t bufsize)
634 if (!run_io_rd(&io, argv, FORMAT_NONE))
637 io.buf = io.bufpos = buf;
638 io.bufalloc = bufsize;
639 error = !io_get(&io, '\n', TRUE) && io_error(&io);
642 return done_io(&io) || error;
645 static int read_properties(struct io *io, const char *separators, int (*read)(char *, size_t, char *, size_t));
652 /* XXX: Keep the view request first and in sync with views[]. */ \
653 REQ_GROUP("View switching") \
654 REQ_(VIEW_MAIN, "Show main view"), \
655 REQ_(VIEW_DIFF, "Show diff view"), \
656 REQ_(VIEW_LOG, "Show log view"), \
657 REQ_(VIEW_TREE, "Show tree view"), \
658 REQ_(VIEW_BLOB, "Show blob view"), \
659 REQ_(VIEW_BLAME, "Show blame view"), \
660 REQ_(VIEW_HELP, "Show help page"), \
661 REQ_(VIEW_PAGER, "Show pager view"), \
662 REQ_(VIEW_STATUS, "Show status view"), \
663 REQ_(VIEW_STAGE, "Show stage view"), \
665 REQ_GROUP("View manipulation") \
666 REQ_(ENTER, "Enter current line and scroll"), \
667 REQ_(NEXT, "Move to next"), \
668 REQ_(PREVIOUS, "Move to previous"), \
669 REQ_(VIEW_NEXT, "Move focus to next view"), \
670 REQ_(REFRESH, "Reload and refresh"), \
671 REQ_(MAXIMIZE, "Maximize the current view"), \
672 REQ_(VIEW_CLOSE, "Close the current view"), \
673 REQ_(QUIT, "Close all views and quit"), \
675 REQ_GROUP("View specific requests") \
676 REQ_(STATUS_UPDATE, "Update file status"), \
677 REQ_(STATUS_REVERT, "Revert file changes"), \
678 REQ_(STATUS_MERGE, "Merge file using external tool"), \
679 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
680 REQ_(TREE_PARENT, "Switch to parent directory in tree view"), \
682 REQ_GROUP("Cursor navigation") \
683 REQ_(MOVE_UP, "Move cursor one line up"), \
684 REQ_(MOVE_DOWN, "Move cursor one line down"), \
685 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
686 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
687 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
688 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
690 REQ_GROUP("Scrolling") \
691 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
692 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
693 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
694 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
696 REQ_GROUP("Searching") \
697 REQ_(SEARCH, "Search the view"), \
698 REQ_(SEARCH_BACK, "Search backwards in the view"), \
699 REQ_(FIND_NEXT, "Find next search match"), \
700 REQ_(FIND_PREV, "Find previous search match"), \
702 REQ_GROUP("Option manipulation") \
703 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
704 REQ_(TOGGLE_DATE, "Toggle date display"), \
705 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
706 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
707 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
710 REQ_(PROMPT, "Bring up the prompt"), \
711 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
712 REQ_(SHOW_VERSION, "Show version information"), \
713 REQ_(STOP_LOADING, "Stop all loading views"), \
714 REQ_(EDIT, "Open in editor"), \
715 REQ_(NONE, "Do nothing")
718 /* User action requests. */
720 #define REQ_GROUP(help)
721 #define REQ_(req, help) REQ_##req
723 /* Offset all requests to avoid conflicts with ncurses getch values. */
724 REQ_OFFSET = KEY_MAX + 1,
731 struct request_info {
732 enum request request;
738 static struct request_info req_info[] = {
739 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
740 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
747 get_request(const char *name)
749 int namelen = strlen(name);
752 for (i = 0; i < ARRAY_SIZE(req_info); i++)
753 if (req_info[i].namelen == namelen &&
754 !string_enum_compare(req_info[i].name, name, namelen))
755 return req_info[i].request;
765 static const char usage[] =
766 "tig " TIG_VERSION " (" __DATE__ ")\n"
768 "Usage: tig [options] [revs] [--] [paths]\n"
769 " or: tig show [options] [revs] [--] [paths]\n"
770 " or: tig blame [rev] path\n"
772 " or: tig < [git command output]\n"
775 " -v, --version Show version and exit\n"
776 " -h, --help Show help message and exit";
778 /* Option and state variables. */
779 static bool opt_date = TRUE;
780 static bool opt_author = TRUE;
781 static bool opt_line_number = FALSE;
782 static bool opt_line_graphics = TRUE;
783 static bool opt_rev_graph = FALSE;
784 static bool opt_show_refs = TRUE;
785 static int opt_num_interval = NUMBER_INTERVAL;
786 static int opt_tab_size = TAB_SIZE;
787 static int opt_author_cols = AUTHOR_COLS-1;
788 static char opt_path[SIZEOF_STR] = "";
789 static char opt_file[SIZEOF_STR] = "";
790 static char opt_ref[SIZEOF_REF] = "";
791 static char opt_head[SIZEOF_REF] = "";
792 static char opt_head_rev[SIZEOF_REV] = "";
793 static char opt_remote[SIZEOF_REF] = "";
794 static char opt_encoding[20] = "UTF-8";
795 static bool opt_utf8 = TRUE;
796 static char opt_codeset[20] = "UTF-8";
797 static iconv_t opt_iconv = ICONV_NONE;
798 static char opt_search[SIZEOF_STR] = "";
799 static char opt_cdup[SIZEOF_STR] = "";
800 static char opt_prefix[SIZEOF_STR] = "";
801 static char opt_git_dir[SIZEOF_STR] = "";
802 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
803 static char opt_editor[SIZEOF_STR] = "";
804 static FILE *opt_tty = NULL;
806 #define is_initial_commit() (!*opt_head_rev)
807 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || !strcmp(opt_head_rev, (rev)))
810 parse_options(int argc, const char *argv[], const char ***run_argv)
812 enum request request = REQ_VIEW_MAIN;
813 const char *subcommand;
814 bool seen_dashdash = FALSE;
815 /* XXX: This is vulnerable to the user overriding options
816 * required for the main view parser. */
817 static const char *custom_argv[SIZEOF_ARG] = {
818 "git", "log", "--no-color", "--pretty=raw", "--parents",
823 if (!isatty(STDIN_FILENO))
824 return REQ_VIEW_PAGER;
827 return REQ_VIEW_MAIN;
829 subcommand = argv[1];
830 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
831 if (!strcmp(subcommand, "-S"))
832 warn("`-S' has been deprecated; use `tig status' instead");
834 warn("ignoring arguments after `%s'", subcommand);
835 return REQ_VIEW_STATUS;
837 } else if (!strcmp(subcommand, "blame")) {
838 if (argc <= 2 || argc > 4)
839 die("invalid number of options to blame\n\n%s", usage);
843 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
847 string_ncopy(opt_file, argv[i], strlen(argv[i]));
848 return REQ_VIEW_BLAME;
850 } else if (!strcmp(subcommand, "show")) {
851 request = REQ_VIEW_DIFF;
853 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
854 request = subcommand[0] == 'l' ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
855 warn("`tig %s' has been deprecated", subcommand);
862 custom_argv[1] = subcommand;
866 for (i = 1 + !!subcommand; i < argc; i++) {
867 const char *opt = argv[i];
869 if (seen_dashdash || !strcmp(opt, "--")) {
870 seen_dashdash = TRUE;
872 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
873 printf("tig version %s\n", TIG_VERSION);
876 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
877 printf("%s\n", usage);
881 custom_argv[j++] = opt;
882 if (j >= ARRAY_SIZE(custom_argv))
883 die("command too long");
886 custom_argv[j] = NULL;
887 *run_argv = custom_argv;
894 * Line-oriented content detection.
898 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
899 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
900 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
901 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
902 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
903 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
904 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
905 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
906 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
907 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
908 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
909 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
910 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
911 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
912 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
913 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
914 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
915 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
916 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
917 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
918 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
919 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
920 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
921 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
922 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
923 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
924 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
925 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
926 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
927 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
928 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
929 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
930 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
931 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
932 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
933 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
934 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
935 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
936 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
937 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
938 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
939 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
940 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
941 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
942 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
943 LINE(TREE_PARENT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD), \
944 LINE(TREE_MODE, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
945 LINE(TREE_DIR, "", COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), \
946 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
947 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
948 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
949 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
950 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
951 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
952 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
953 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
956 #define LINE(type, line, fg, bg, attr) \
964 const char *name; /* Option name. */
965 int namelen; /* Size of option name. */
966 const char *line; /* The start of line to match. */
967 int linelen; /* Size of string to match. */
968 int fg, bg, attr; /* Color and text attributes for the lines. */
971 static struct line_info line_info[] = {
972 #define LINE(type, line, fg, bg, attr) \
973 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
978 static enum line_type
979 get_line_type(const char *line)
981 int linelen = strlen(line);
984 for (type = 0; type < ARRAY_SIZE(line_info); type++)
985 /* Case insensitive search matches Signed-off-by lines better. */
986 if (linelen >= line_info[type].linelen &&
987 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
994 get_line_attr(enum line_type type)
996 assert(type < ARRAY_SIZE(line_info));
997 return COLOR_PAIR(type) | line_info[type].attr;
1000 static struct line_info *
1001 get_line_info(const char *name)
1003 size_t namelen = strlen(name);
1004 enum line_type type;
1006 for (type = 0; type < ARRAY_SIZE(line_info); type++)
1007 if (namelen == line_info[type].namelen &&
1008 !string_enum_compare(line_info[type].name, name, namelen))
1009 return &line_info[type];
1017 int default_bg = line_info[LINE_DEFAULT].bg;
1018 int default_fg = line_info[LINE_DEFAULT].fg;
1019 enum line_type type;
1023 if (assume_default_colors(default_fg, default_bg) == ERR) {
1024 default_bg = COLOR_BLACK;
1025 default_fg = COLOR_WHITE;
1028 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
1029 struct line_info *info = &line_info[type];
1030 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
1031 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
1033 init_pair(type, fg, bg);
1038 enum line_type type;
1041 unsigned int selected:1;
1042 unsigned int dirty:1;
1043 unsigned int cleareol:1;
1045 void *data; /* User data */
1055 enum request request;
1058 static struct keybinding default_keybindings[] = {
1059 /* View switching */
1060 { 'm', REQ_VIEW_MAIN },
1061 { 'd', REQ_VIEW_DIFF },
1062 { 'l', REQ_VIEW_LOG },
1063 { 't', REQ_VIEW_TREE },
1064 { 'f', REQ_VIEW_BLOB },
1065 { 'B', REQ_VIEW_BLAME },
1066 { 'p', REQ_VIEW_PAGER },
1067 { 'h', REQ_VIEW_HELP },
1068 { 'S', REQ_VIEW_STATUS },
1069 { 'c', REQ_VIEW_STAGE },
1071 /* View manipulation */
1072 { 'q', REQ_VIEW_CLOSE },
1073 { KEY_TAB, REQ_VIEW_NEXT },
1074 { KEY_RETURN, REQ_ENTER },
1075 { KEY_UP, REQ_PREVIOUS },
1076 { KEY_DOWN, REQ_NEXT },
1077 { 'R', REQ_REFRESH },
1078 { KEY_F(5), REQ_REFRESH },
1079 { 'O', REQ_MAXIMIZE },
1081 /* Cursor navigation */
1082 { 'k', REQ_MOVE_UP },
1083 { 'j', REQ_MOVE_DOWN },
1084 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1085 { KEY_END, REQ_MOVE_LAST_LINE },
1086 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1087 { ' ', REQ_MOVE_PAGE_DOWN },
1088 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1089 { 'b', REQ_MOVE_PAGE_UP },
1090 { '-', REQ_MOVE_PAGE_UP },
1093 { KEY_IC, REQ_SCROLL_LINE_UP },
1094 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1095 { 'w', REQ_SCROLL_PAGE_UP },
1096 { 's', REQ_SCROLL_PAGE_DOWN },
1099 { '/', REQ_SEARCH },
1100 { '?', REQ_SEARCH_BACK },
1101 { 'n', REQ_FIND_NEXT },
1102 { 'N', REQ_FIND_PREV },
1106 { 'z', REQ_STOP_LOADING },
1107 { 'v', REQ_SHOW_VERSION },
1108 { 'r', REQ_SCREEN_REDRAW },
1109 { '.', REQ_TOGGLE_LINENO },
1110 { 'D', REQ_TOGGLE_DATE },
1111 { 'A', REQ_TOGGLE_AUTHOR },
1112 { 'g', REQ_TOGGLE_REV_GRAPH },
1113 { 'F', REQ_TOGGLE_REFS },
1114 { ':', REQ_PROMPT },
1115 { 'u', REQ_STATUS_UPDATE },
1116 { '!', REQ_STATUS_REVERT },
1117 { 'M', REQ_STATUS_MERGE },
1118 { '@', REQ_STAGE_NEXT },
1119 { ',', REQ_TREE_PARENT },
1123 #define KEYMAP_INFO \
1137 #define KEYMAP_(name) KEYMAP_##name
1142 static struct int_map keymap_table[] = {
1143 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
1148 #define set_keymap(map, name) \
1149 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
1151 struct keybinding_table {
1152 struct keybinding *data;
1156 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1159 add_keybinding(enum keymap keymap, enum request request, int key)
1161 struct keybinding_table *table = &keybindings[keymap];
1163 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1165 die("Failed to allocate keybinding");
1166 table->data[table->size].alias = key;
1167 table->data[table->size++].request = request;
1170 /* Looks for a key binding first in the given map, then in the generic map, and
1171 * lastly in the default keybindings. */
1173 get_keybinding(enum keymap keymap, int key)
1177 for (i = 0; i < keybindings[keymap].size; i++)
1178 if (keybindings[keymap].data[i].alias == key)
1179 return keybindings[keymap].data[i].request;
1181 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1182 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1183 return keybindings[KEYMAP_GENERIC].data[i].request;
1185 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1186 if (default_keybindings[i].alias == key)
1187 return default_keybindings[i].request;
1189 return (enum request) key;
1198 static struct key key_table[] = {
1199 { "Enter", KEY_RETURN },
1201 { "Backspace", KEY_BACKSPACE },
1203 { "Escape", KEY_ESC },
1204 { "Left", KEY_LEFT },
1205 { "Right", KEY_RIGHT },
1207 { "Down", KEY_DOWN },
1208 { "Insert", KEY_IC },
1209 { "Delete", KEY_DC },
1211 { "Home", KEY_HOME },
1213 { "PageUp", KEY_PPAGE },
1214 { "PageDown", KEY_NPAGE },
1224 { "F10", KEY_F(10) },
1225 { "F11", KEY_F(11) },
1226 { "F12", KEY_F(12) },
1230 get_key_value(const char *name)
1234 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1235 if (!strcasecmp(key_table[i].name, name))
1236 return key_table[i].value;
1238 if (strlen(name) == 1 && isprint(*name))
1245 get_key_name(int key_value)
1247 static char key_char[] = "'X'";
1248 const char *seq = NULL;
1251 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1252 if (key_table[key].value == key_value)
1253 seq = key_table[key].name;
1257 isprint(key_value)) {
1258 key_char[1] = (char) key_value;
1262 return seq ? seq : "(no key)";
1266 get_key(enum request request)
1268 static char buf[BUFSIZ];
1275 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1276 struct keybinding *keybinding = &default_keybindings[i];
1278 if (keybinding->request != request)
1281 if (!string_format_from(buf, &pos, "%s%s", sep,
1282 get_key_name(keybinding->alias)))
1283 return "Too many keybindings!";
1290 struct run_request {
1293 const char *argv[SIZEOF_ARG];
1296 static struct run_request *run_request;
1297 static size_t run_requests;
1300 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1302 struct run_request *req;
1304 if (argc >= ARRAY_SIZE(req->argv) - 1)
1307 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1312 req = &run_request[run_requests];
1313 req->keymap = keymap;
1315 req->argv[0] = NULL;
1317 if (!format_argv(req->argv, argv, FORMAT_NONE))
1320 return REQ_NONE + ++run_requests;
1323 static struct run_request *
1324 get_run_request(enum request request)
1326 if (request <= REQ_NONE)
1328 return &run_request[request - REQ_NONE - 1];
1332 add_builtin_run_requests(void)
1334 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1335 const char *gc[] = { "git", "gc", NULL };
1342 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1343 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1347 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1350 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1351 if (req != REQ_NONE)
1352 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1357 * User config file handling.
1360 static struct int_map color_map[] = {
1361 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1373 #define set_color(color, name) \
1374 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1376 static struct int_map attr_map[] = {
1377 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1384 ATTR_MAP(UNDERLINE),
1387 #define set_attribute(attr, name) \
1388 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1390 static int config_lineno;
1391 static bool config_errors;
1392 static const char *config_msg;
1394 /* Wants: object fgcolor bgcolor [attr] */
1396 option_color_command(int argc, const char *argv[])
1398 struct line_info *info;
1400 if (argc != 3 && argc != 4) {
1401 config_msg = "Wrong number of arguments given to color command";
1405 info = get_line_info(argv[0]);
1407 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1408 info = get_line_info("delimiter");
1410 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1411 info = get_line_info("date");
1414 config_msg = "Unknown color name";
1419 if (set_color(&info->fg, argv[1]) == ERR ||
1420 set_color(&info->bg, argv[2]) == ERR) {
1421 config_msg = "Unknown color";
1425 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1426 config_msg = "Unknown attribute";
1433 static bool parse_bool(const char *s)
1435 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1436 !strcmp(s, "yes")) ? TRUE : FALSE;
1440 parse_int(const char *s, int default_value, int min, int max)
1442 int value = atoi(s);
1444 return (value < min || value > max) ? default_value : value;
1447 /* Wants: name = value */
1449 option_set_command(int argc, const char *argv[])
1452 config_msg = "Wrong number of arguments given to set command";
1456 if (strcmp(argv[1], "=")) {
1457 config_msg = "No value assigned";
1461 if (!strcmp(argv[0], "show-author")) {
1462 opt_author = parse_bool(argv[2]);
1466 if (!strcmp(argv[0], "show-date")) {
1467 opt_date = parse_bool(argv[2]);
1471 if (!strcmp(argv[0], "show-rev-graph")) {
1472 opt_rev_graph = parse_bool(argv[2]);
1476 if (!strcmp(argv[0], "show-refs")) {
1477 opt_show_refs = parse_bool(argv[2]);
1481 if (!strcmp(argv[0], "show-line-numbers")) {
1482 opt_line_number = parse_bool(argv[2]);
1486 if (!strcmp(argv[0], "line-graphics")) {
1487 opt_line_graphics = parse_bool(argv[2]);
1491 if (!strcmp(argv[0], "line-number-interval")) {
1492 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1496 if (!strcmp(argv[0], "author-width")) {
1497 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1501 if (!strcmp(argv[0], "tab-size")) {
1502 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1506 if (!strcmp(argv[0], "commit-encoding")) {
1507 const char *arg = argv[2];
1508 int arglen = strlen(arg);
1513 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1514 config_msg = "Unmatched quotation";
1517 arg += 1; arglen -= 2;
1519 string_ncopy(opt_encoding, arg, strlen(arg));
1524 config_msg = "Unknown variable name";
1528 /* Wants: mode request key */
1530 option_bind_command(int argc, const char *argv[])
1532 enum request request;
1537 config_msg = "Wrong number of arguments given to bind command";
1541 if (set_keymap(&keymap, argv[0]) == ERR) {
1542 config_msg = "Unknown key map";
1546 key = get_key_value(argv[1]);
1548 config_msg = "Unknown key";
1552 request = get_request(argv[2]);
1553 if (request == REQ_NONE) {
1554 const char *obsolete[] = { "cherry-pick", "screen-resize" };
1555 size_t namelen = strlen(argv[2]);
1558 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1559 if (namelen == strlen(obsolete[i]) &&
1560 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1561 config_msg = "Obsolete request name";
1566 if (request == REQ_NONE && *argv[2]++ == '!')
1567 request = add_run_request(keymap, key, argc - 2, argv + 2);
1568 if (request == REQ_NONE) {
1569 config_msg = "Unknown request name";
1573 add_keybinding(keymap, request, key);
1579 set_option(const char *opt, char *value)
1581 const char *argv[SIZEOF_ARG];
1584 if (!argv_from_string(argv, &argc, value)) {
1585 config_msg = "Too many option arguments";
1589 if (!strcmp(opt, "color"))
1590 return option_color_command(argc, argv);
1592 if (!strcmp(opt, "set"))
1593 return option_set_command(argc, argv);
1595 if (!strcmp(opt, "bind"))
1596 return option_bind_command(argc, argv);
1598 config_msg = "Unknown option command";
1603 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1608 config_msg = "Internal error";
1610 /* Check for comment markers, since read_properties() will
1611 * only ensure opt and value are split at first " \t". */
1612 optlen = strcspn(opt, "#");
1616 if (opt[optlen] != 0) {
1617 config_msg = "No option value";
1621 /* Look for comment endings in the value. */
1622 size_t len = strcspn(value, "#");
1624 if (len < valuelen) {
1626 value[valuelen] = 0;
1629 status = set_option(opt, value);
1632 if (status == ERR) {
1633 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1634 config_lineno, (int) optlen, opt, config_msg);
1635 config_errors = TRUE;
1638 /* Always keep going if errors are encountered. */
1643 load_option_file(const char *path)
1647 /* It's ok that the file doesn't exist. */
1648 if (!io_open(&io, path))
1652 config_errors = FALSE;
1654 if (read_properties(&io, " \t", read_option) == ERR ||
1655 config_errors == TRUE)
1656 fprintf(stderr, "Errors while loading %s.\n", path);
1662 const char *home = getenv("HOME");
1663 const char *tigrc_user = getenv("TIGRC_USER");
1664 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1665 char buf[SIZEOF_STR];
1667 add_builtin_run_requests();
1669 if (!tigrc_system) {
1670 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1674 load_option_file(tigrc_system);
1677 if (!home || !string_format(buf, "%s/.tigrc", home))
1681 load_option_file(tigrc_user);
1694 /* The display array of active views and the index of the current view. */
1695 static struct view *display[2];
1696 static unsigned int current_view;
1698 /* Reading from the prompt? */
1699 static bool input_mode = FALSE;
1701 #define foreach_displayed_view(view, i) \
1702 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1704 #define displayed_views() (display[1] != NULL ? 2 : 1)
1706 /* Current head and commit ID */
1707 static char ref_blob[SIZEOF_REF] = "";
1708 static char ref_commit[SIZEOF_REF] = "HEAD";
1709 static char ref_head[SIZEOF_REF] = "HEAD";
1712 const char *name; /* View name */
1713 const char *cmd_env; /* Command line set via environment */
1714 const char *id; /* Points to either of ref_{head,commit,blob} */
1716 struct view_ops *ops; /* View operations */
1718 enum keymap keymap; /* What keymap does this view have */
1719 bool git_dir; /* Whether the view requires a git directory. */
1721 char ref[SIZEOF_REF]; /* Hovered commit reference */
1722 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1724 int height, width; /* The width and height of the main window */
1725 WINDOW *win; /* The main window */
1726 WINDOW *title; /* The title window living below the main window */
1729 unsigned long offset; /* Offset of the window top */
1730 unsigned long lineno; /* Current line number */
1731 unsigned long p_offset; /* Previous offset of the window top */
1732 unsigned long p_lineno; /* Previous current line number */
1733 bool p_restore; /* Should the previous position be restored. */
1736 char grep[SIZEOF_STR]; /* Search string */
1737 regex_t *regex; /* Pre-compiled regex */
1739 /* If non-NULL, points to the view that opened this view. If this view
1740 * is closed tig will switch back to the parent view. */
1741 struct view *parent;
1744 size_t lines; /* Total number of lines */
1745 struct line *line; /* Line index */
1746 size_t line_alloc; /* Total number of allocated lines */
1747 unsigned int digits; /* Number of digits in the lines member. */
1750 struct line *curline; /* Line currently being drawn. */
1751 enum line_type curtype; /* Attribute currently used for drawing. */
1752 unsigned long col; /* Column when drawing. */
1762 /* What type of content being displayed. Used in the title bar. */
1764 /* Default command arguments. */
1766 /* Open and reads in all view content. */
1767 bool (*open)(struct view *view);
1768 /* Read one line; updates view->line. */
1769 bool (*read)(struct view *view, char *data);
1770 /* Draw one line; @lineno must be < view->height. */
1771 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1772 /* Depending on view handle a special requests. */
1773 enum request (*request)(struct view *view, enum request request, struct line *line);
1774 /* Search for regex in a line. */
1775 bool (*grep)(struct view *view, struct line *line);
1777 void (*select)(struct view *view, struct line *line);
1780 static struct view_ops blame_ops;
1781 static struct view_ops blob_ops;
1782 static struct view_ops diff_ops;
1783 static struct view_ops help_ops;
1784 static struct view_ops log_ops;
1785 static struct view_ops main_ops;
1786 static struct view_ops pager_ops;
1787 static struct view_ops stage_ops;
1788 static struct view_ops status_ops;
1789 static struct view_ops tree_ops;
1791 #define VIEW_STR(name, env, ref, ops, map, git) \
1792 { name, #env, ref, ops, map, git }
1794 #define VIEW_(id, name, ops, git, ref) \
1795 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1798 static struct view views[] = {
1799 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1800 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1801 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1802 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1803 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1804 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1805 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1806 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1807 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1808 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1811 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1812 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1814 #define foreach_view(view, i) \
1815 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1817 #define view_is_displayed(view) \
1818 (view == display[0] || view == display[1])
1825 static int line_graphics[] = {
1826 /* LINE_GRAPHIC_VLINE: */ '|'
1830 set_view_attr(struct view *view, enum line_type type)
1832 if (!view->curline->selected && view->curtype != type) {
1833 wattrset(view->win, get_line_attr(type));
1834 wchgat(view->win, -1, 0, type, NULL);
1835 view->curtype = type;
1840 draw_chars(struct view *view, enum line_type type, const char *string,
1841 int max_len, bool use_tilde)
1845 int trimmed = FALSE;
1851 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1853 col = len = strlen(string);
1854 if (len > max_len) {
1858 col = len = max_len;
1863 set_view_attr(view, type);
1864 waddnstr(view->win, string, len);
1865 if (trimmed && use_tilde) {
1866 set_view_attr(view, LINE_DELIMITER);
1867 waddch(view->win, '~');
1875 draw_space(struct view *view, enum line_type type, int max, int spaces)
1877 static char space[] = " ";
1880 spaces = MIN(max, spaces);
1882 while (spaces > 0) {
1883 int len = MIN(spaces, sizeof(space) - 1);
1885 col += draw_chars(view, type, space, spaces, FALSE);
1893 draw_lineno(struct view *view, unsigned int lineno)
1896 int digits3 = view->digits < 3 ? 3 : view->digits;
1897 int max_number = MIN(digits3, STRING_SIZE(number));
1898 int max = view->width - view->col;
1901 if (max < max_number)
1904 lineno += view->offset + 1;
1905 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1906 static char fmt[] = "%1ld";
1908 if (view->digits <= 9)
1909 fmt[1] = '0' + digits3;
1911 if (!string_format(number, fmt, lineno))
1913 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1915 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1919 set_view_attr(view, LINE_DEFAULT);
1920 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1925 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1928 return view->width - view->col <= 0;
1932 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1934 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1935 return view->width - view->col <= 0;
1939 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1941 int max = view->width - view->col;
1947 set_view_attr(view, type);
1948 /* Using waddch() instead of waddnstr() ensures that
1949 * they'll be rendered correctly for the cursor line. */
1950 for (i = 0; i < size; i++)
1951 waddch(view->win, graphic[i]);
1955 waddch(view->win, ' ');
1959 return view->width - view->col <= 0;
1963 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1965 int max = MIN(view->width - view->col, len);
1969 col = draw_chars(view, type, text, max - 1, trim);
1971 col = draw_space(view, type, max - 1, max - 1);
1973 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1974 return view->width - view->col <= 0;
1978 draw_date(struct view *view, struct tm *time)
1980 char buf[DATE_COLS];
1985 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1986 date = timelen ? buf : NULL;
1988 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1992 draw_view_line(struct view *view, unsigned int lineno)
1995 bool selected = (view->offset + lineno == view->lineno);
1998 assert(view_is_displayed(view));
2000 if (view->offset + lineno >= view->lines)
2003 line = &view->line[view->offset + lineno];
2005 wmove(view->win, lineno, 0);
2007 wclrtoeol(view->win);
2009 view->curline = line;
2010 view->curtype = LINE_NONE;
2011 line->selected = FALSE;
2012 line->dirty = line->cleareol = 0;
2015 set_view_attr(view, LINE_CURSOR);
2016 line->selected = TRUE;
2017 view->ops->select(view, line);
2020 scrollok(view->win, FALSE);
2021 draw_ok = view->ops->draw(view, line, lineno);
2022 scrollok(view->win, TRUE);
2028 redraw_view_dirty(struct view *view)
2033 for (lineno = 0; lineno < view->height; lineno++) {
2034 if (view->offset + lineno >= view->lines)
2036 if (!view->line[view->offset + lineno].dirty)
2039 if (!draw_view_line(view, lineno))
2045 redrawwin(view->win);
2047 wnoutrefresh(view->win);
2049 wrefresh(view->win);
2053 redraw_view_from(struct view *view, int lineno)
2055 assert(0 <= lineno && lineno < view->height);
2057 for (; lineno < view->height; lineno++) {
2058 if (!draw_view_line(view, lineno))
2062 redrawwin(view->win);
2064 wnoutrefresh(view->win);
2066 wrefresh(view->win);
2070 redraw_view(struct view *view)
2073 redraw_view_from(view, 0);
2078 update_view_title(struct view *view)
2080 char buf[SIZEOF_STR];
2081 char state[SIZEOF_STR];
2082 size_t bufpos = 0, statelen = 0;
2084 assert(view_is_displayed(view));
2086 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2087 unsigned int view_lines = view->offset + view->height;
2088 unsigned int lines = view->lines
2089 ? MIN(view_lines, view->lines) * 100 / view->lines
2092 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2101 time_t secs = time(NULL) - view->start_time;
2103 /* Three git seconds are a long time ... */
2105 string_format_from(state, &statelen, " loading %lds", secs);
2108 string_format_from(buf, &bufpos, "[%s]", view->name);
2109 if (*view->ref && bufpos < view->width) {
2110 size_t refsize = strlen(view->ref);
2111 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2113 if (minsize < view->width)
2114 refsize = view->width - minsize + 7;
2115 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2118 if (statelen && bufpos < view->width) {
2119 string_format_from(buf, &bufpos, "%s", state);
2122 if (view == display[current_view])
2123 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2125 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2127 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2128 wclrtoeol(view->title);
2129 wmove(view->title, 0, view->width - 1);
2132 wnoutrefresh(view->title);
2134 wrefresh(view->title);
2138 resize_display(void)
2141 struct view *base = display[0];
2142 struct view *view = display[1] ? display[1] : display[0];
2144 /* Setup window dimensions */
2146 getmaxyx(stdscr, base->height, base->width);
2148 /* Make room for the status window. */
2152 /* Horizontal split. */
2153 view->width = base->width;
2154 view->height = SCALE_SPLIT_VIEW(base->height);
2155 base->height -= view->height;
2157 /* Make room for the title bar. */
2161 /* Make room for the title bar. */
2166 foreach_displayed_view (view, i) {
2168 view->win = newwin(view->height, 0, offset, 0);
2170 die("Failed to create %s view", view->name);
2172 scrollok(view->win, TRUE);
2174 view->title = newwin(1, 0, offset + view->height, 0);
2176 die("Failed to create title window");
2179 wresize(view->win, view->height, view->width);
2180 mvwin(view->win, offset, 0);
2181 mvwin(view->title, offset + view->height, 0);
2184 offset += view->height + 1;
2189 redraw_display(bool clear)
2194 foreach_displayed_view (view, i) {
2198 update_view_title(view);
2203 update_display_cursor(struct view *view)
2205 /* Move the cursor to the right-most column of the cursor line.
2207 * XXX: This could turn out to be a bit expensive, but it ensures that
2208 * the cursor does not jump around. */
2210 wmove(view->win, view->lineno - view->offset, view->width - 1);
2211 wrefresh(view->win);
2216 toggle_view_option(bool *option, const char *help)
2219 redraw_display(FALSE);
2220 report("%sabling %s", *option ? "En" : "Dis", help);
2227 /* Scrolling backend */
2229 do_scroll_view(struct view *view, int lines)
2231 bool redraw_current_line = FALSE;
2233 /* The rendering expects the new offset. */
2234 view->offset += lines;
2236 assert(0 <= view->offset && view->offset < view->lines);
2239 /* Move current line into the view. */
2240 if (view->lineno < view->offset) {
2241 view->lineno = view->offset;
2242 redraw_current_line = TRUE;
2243 } else if (view->lineno >= view->offset + view->height) {
2244 view->lineno = view->offset + view->height - 1;
2245 redraw_current_line = TRUE;
2248 assert(view->offset <= view->lineno && view->lineno < view->lines);
2250 /* Redraw the whole screen if scrolling is pointless. */
2251 if (view->height < ABS(lines)) {
2255 int line = lines > 0 ? view->height - lines : 0;
2256 int end = line + ABS(lines);
2258 wscrl(view->win, lines);
2260 for (; line < end; line++) {
2261 if (!draw_view_line(view, line))
2265 if (redraw_current_line)
2266 draw_view_line(view, view->lineno - view->offset);
2269 redrawwin(view->win);
2270 wrefresh(view->win);
2274 /* Scroll frontend */
2276 scroll_view(struct view *view, enum request request)
2280 assert(view_is_displayed(view));
2283 case REQ_SCROLL_PAGE_DOWN:
2284 lines = view->height;
2285 case REQ_SCROLL_LINE_DOWN:
2286 if (view->offset + lines > view->lines)
2287 lines = view->lines - view->offset;
2289 if (lines == 0 || view->offset + view->height >= view->lines) {
2290 report("Cannot scroll beyond the last line");
2295 case REQ_SCROLL_PAGE_UP:
2296 lines = view->height;
2297 case REQ_SCROLL_LINE_UP:
2298 if (lines > view->offset)
2299 lines = view->offset;
2302 report("Cannot scroll beyond the first line");
2310 die("request %d not handled in switch", request);
2313 do_scroll_view(view, lines);
2318 move_view(struct view *view, enum request request)
2320 int scroll_steps = 0;
2324 case REQ_MOVE_FIRST_LINE:
2325 steps = -view->lineno;
2328 case REQ_MOVE_LAST_LINE:
2329 steps = view->lines - view->lineno - 1;
2332 case REQ_MOVE_PAGE_UP:
2333 steps = view->height > view->lineno
2334 ? -view->lineno : -view->height;
2337 case REQ_MOVE_PAGE_DOWN:
2338 steps = view->lineno + view->height >= view->lines
2339 ? view->lines - view->lineno - 1 : view->height;
2351 die("request %d not handled in switch", request);
2354 if (steps <= 0 && view->lineno == 0) {
2355 report("Cannot move beyond the first line");
2358 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2359 report("Cannot move beyond the last line");
2363 /* Move the current line */
2364 view->lineno += steps;
2365 assert(0 <= view->lineno && view->lineno < view->lines);
2367 /* Check whether the view needs to be scrolled */
2368 if (view->lineno < view->offset ||
2369 view->lineno >= view->offset + view->height) {
2370 scroll_steps = steps;
2371 if (steps < 0 && -steps > view->offset) {
2372 scroll_steps = -view->offset;
2374 } else if (steps > 0) {
2375 if (view->lineno == view->lines - 1 &&
2376 view->lines > view->height) {
2377 scroll_steps = view->lines - view->offset - 1;
2378 if (scroll_steps >= view->height)
2379 scroll_steps -= view->height - 1;
2384 if (!view_is_displayed(view)) {
2385 view->offset += scroll_steps;
2386 assert(0 <= view->offset && view->offset < view->lines);
2387 view->ops->select(view, &view->line[view->lineno]);
2391 /* Repaint the old "current" line if we be scrolling */
2392 if (ABS(steps) < view->height)
2393 draw_view_line(view, view->lineno - steps - view->offset);
2396 do_scroll_view(view, scroll_steps);
2400 /* Draw the current line */
2401 draw_view_line(view, view->lineno - view->offset);
2403 redrawwin(view->win);
2404 wrefresh(view->win);
2413 static void search_view(struct view *view, enum request request);
2416 select_view_line(struct view *view, unsigned long lineno)
2418 if (lineno - view->offset >= view->height) {
2419 view->offset = lineno;
2420 view->lineno = lineno;
2421 if (view_is_displayed(view))
2425 unsigned long old_lineno = view->lineno - view->offset;
2427 view->lineno = lineno;
2428 if (view_is_displayed(view)) {
2429 draw_view_line(view, old_lineno);
2430 draw_view_line(view, view->lineno - view->offset);
2431 redrawwin(view->win);
2432 wrefresh(view->win);
2434 view->ops->select(view, &view->line[view->lineno]);
2440 find_next(struct view *view, enum request request)
2442 unsigned long lineno = view->lineno;
2447 report("No previous search");
2449 search_view(view, request);
2459 case REQ_SEARCH_BACK:
2468 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2469 lineno += direction;
2471 /* Note, lineno is unsigned long so will wrap around in which case it
2472 * will become bigger than view->lines. */
2473 for (; lineno < view->lines; lineno += direction) {
2474 if (view->ops->grep(view, &view->line[lineno])) {
2475 select_view_line(view, lineno);
2476 report("Line %ld matches '%s'", lineno + 1, view->grep);
2481 report("No match found for '%s'", view->grep);
2485 search_view(struct view *view, enum request request)
2490 regfree(view->regex);
2493 view->regex = calloc(1, sizeof(*view->regex));
2498 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2499 if (regex_err != 0) {
2500 char buf[SIZEOF_STR] = "unknown error";
2502 regerror(regex_err, view->regex, buf, sizeof(buf));
2503 report("Search failed: %s", buf);
2507 string_copy(view->grep, opt_search);
2509 find_next(view, request);
2513 * Incremental updating
2517 reset_view(struct view *view)
2521 for (i = 0; i < view->lines; i++)
2522 free(view->line[i].data);
2525 view->p_offset = view->offset;
2526 view->p_lineno = view->lineno;
2532 view->line_alloc = 0;
2534 view->update_secs = 0;
2538 free_argv(const char *argv[])
2542 for (argc = 0; argv[argc]; argc++)
2543 free((void *) argv[argc]);
2547 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2549 char buf[SIZEOF_STR];
2551 bool noreplace = flags == FORMAT_NONE;
2553 free_argv(dst_argv);
2555 for (argc = 0; src_argv[argc]; argc++) {
2556 const char *arg = src_argv[argc];
2560 char *next = strstr(arg, "%(");
2561 int len = next - arg;
2564 if (!next || noreplace) {
2565 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2570 } else if (!prefixcmp(next, "%(directory)")) {
2573 } else if (!prefixcmp(next, "%(file)")) {
2576 } else if (!prefixcmp(next, "%(ref)")) {
2577 value = *opt_ref ? opt_ref : "HEAD";
2579 } else if (!prefixcmp(next, "%(head)")) {
2582 } else if (!prefixcmp(next, "%(commit)")) {
2585 } else if (!prefixcmp(next, "%(blob)")) {
2589 report("Unknown replacement: `%s`", next);
2593 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2596 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2599 dst_argv[argc] = strdup(buf);
2600 if (!dst_argv[argc])
2604 dst_argv[argc] = NULL;
2606 return src_argv[argc] == NULL;
2610 restore_view_position(struct view *view)
2612 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2615 /* Changing the view position cancels the restoring. */
2616 /* FIXME: Changing back to the first line is not detected. */
2617 if (view->offset != 0 || view->lineno != 0) {
2618 view->p_restore = FALSE;
2622 if (view->p_lineno >= view->lines) {
2623 view->p_lineno = view->lines > 0 ? view->lines - 1 : 0;
2624 if (view->p_offset >= view->p_lineno) {
2625 unsigned long half = view->height / 2;
2627 if (view->p_lineno > half)
2628 view->p_offset = view->p_lineno - half;
2634 if (view_is_displayed(view) &&
2635 view->offset != view->p_offset &&
2636 view->lineno != view->p_lineno)
2639 view->offset = view->p_offset;
2640 view->lineno = view->p_lineno;
2641 view->p_restore = FALSE;
2647 end_update(struct view *view, bool force)
2651 while (!view->ops->read(view, NULL))
2654 set_nonblocking_input(FALSE);
2656 kill_io(view->pipe);
2657 done_io(view->pipe);
2662 setup_update(struct view *view, const char *vid)
2664 set_nonblocking_input(TRUE);
2666 string_copy_rev(view->vid, vid);
2667 view->pipe = &view->io;
2668 view->start_time = time(NULL);
2672 prepare_update(struct view *view, const char *argv[], const char *dir,
2673 enum format_flags flags)
2676 end_update(view, TRUE);
2677 return init_io_rd(&view->io, argv, dir, flags);
2681 prepare_update_file(struct view *view, const char *name)
2684 end_update(view, TRUE);
2685 return io_open(&view->io, name);
2689 begin_update(struct view *view, bool refresh)
2692 end_update(view, TRUE);
2695 if (!start_io(&view->io))
2699 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2702 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2705 /* Put the current ref_* value to the view title ref
2706 * member. This is needed by the blob view. Most other
2707 * views sets it automatically after loading because the
2708 * first line is a commit line. */
2709 string_copy_rev(view->ref, view->id);
2712 setup_update(view, view->id);
2717 #define ITEM_CHUNK_SIZE 256
2719 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2721 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2722 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2724 if (mem == NULL || num_chunks != num_chunks_new) {
2725 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2726 mem = realloc(mem, *size * item_size);
2732 static struct line *
2733 realloc_lines(struct view *view, size_t line_size)
2735 size_t alloc = view->line_alloc;
2736 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2737 sizeof(*view->line));
2743 view->line_alloc = alloc;
2748 update_view(struct view *view)
2750 char out_buffer[BUFSIZ * 2];
2752 /* Clear the view and redraw everything since the tree sorting
2753 * might have rearranged things. */
2754 bool redraw = view->lines == 0;
2755 bool can_read = TRUE;
2760 if (!io_can_read(view->pipe)) {
2761 if (view->lines == 0) {
2762 time_t secs = time(NULL) - view->start_time;
2764 if (secs > view->update_secs) {
2765 if (view->update_secs == 0)
2767 update_view_title(view);
2768 view->update_secs = secs;
2774 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2775 if (opt_iconv != ICONV_NONE) {
2776 ICONV_CONST char *inbuf = line;
2777 size_t inlen = strlen(line) + 1;
2779 char *outbuf = out_buffer;
2780 size_t outlen = sizeof(out_buffer);
2784 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2785 if (ret != (size_t) -1)
2789 if (!view->ops->read(view, line)) {
2790 report("Allocation failure");
2791 end_update(view, TRUE);
2797 unsigned long lines = view->lines;
2800 for (digits = 0; lines; digits++)
2803 /* Keep the displayed view in sync with line number scaling. */
2804 if (digits != view->digits) {
2805 view->digits = digits;
2806 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2811 if (io_error(view->pipe)) {
2812 report("Failed to read: %s", io_strerror(view->pipe));
2813 end_update(view, TRUE);
2815 } else if (io_eof(view->pipe)) {
2817 end_update(view, FALSE);
2820 if (restore_view_position(view))
2823 if (!view_is_displayed(view))
2827 redraw_view_from(view, 0);
2829 redraw_view_dirty(view);
2831 /* Update the title _after_ the redraw so that if the redraw picks up a
2832 * commit reference in view->ref it'll be available here. */
2833 update_view_title(view);
2837 static struct line *
2838 add_line_data(struct view *view, void *data, enum line_type type)
2842 if (!realloc_lines(view, view->lines + 1))
2845 line = &view->line[view->lines++];
2846 memset(line, 0, sizeof(*line));
2854 static struct line *
2855 add_line_text(struct view *view, const char *text, enum line_type type)
2857 char *data = text ? strdup(text) : NULL;
2859 return data ? add_line_data(view, data, type) : NULL;
2862 static struct line *
2863 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2865 char buf[SIZEOF_STR];
2868 va_start(args, fmt);
2869 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2873 return buf[0] ? add_line_text(view, buf, type) : NULL;
2881 OPEN_DEFAULT = 0, /* Use default view switching. */
2882 OPEN_SPLIT = 1, /* Split current view. */
2883 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2884 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2885 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2886 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2887 OPEN_PREPARED = 32, /* Open already prepared command. */
2891 open_view(struct view *prev, enum request request, enum open_flags flags)
2893 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2894 bool split = !!(flags & OPEN_SPLIT);
2895 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2896 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2897 struct view *view = VIEW(request);
2898 int nviews = displayed_views();
2899 struct view *base_view = display[0];
2901 if (view == prev && nviews == 1 && !reload) {
2902 report("Already in %s view", view->name);
2906 if (view->git_dir && !opt_git_dir[0]) {
2907 report("The %s view is disabled in pager view", view->name);
2915 } else if (!nomaximize) {
2916 /* Maximize the current view. */
2917 memset(display, 0, sizeof(display));
2919 display[current_view] = view;
2922 /* Resize the view when switching between split- and full-screen,
2923 * or when switching between two different full-screen views. */
2924 if (nviews != displayed_views() ||
2925 (nviews == 1 && base_view != display[0]))
2928 if (view->ops->open) {
2930 end_update(view, TRUE);
2931 if (!view->ops->open(view)) {
2932 report("Failed to load %s view", view->name);
2935 restore_view_position(view);
2937 } else if ((reload || strcmp(view->vid, view->id)) &&
2938 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2939 report("Failed to load %s view", view->name);
2943 if (split && prev->lineno - prev->offset >= prev->height) {
2944 /* Take the title line into account. */
2945 int lines = prev->lineno - prev->offset - prev->height + 1;
2947 /* Scroll the view that was split if the current line is
2948 * outside the new limited view. */
2949 do_scroll_view(prev, lines);
2952 if (prev && view != prev) {
2953 if (split && !backgrounded) {
2954 /* "Blur" the previous view. */
2955 update_view_title(prev);
2958 view->parent = prev;
2961 if (view->pipe && view->lines == 0) {
2962 /* Clear the old view and let the incremental updating refill
2965 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
2967 } else if (view_is_displayed(view)) {
2972 /* If the view is backgrounded the above calls to report()
2973 * won't redraw the view title. */
2975 update_view_title(view);
2979 open_external_viewer(const char *argv[], const char *dir)
2981 def_prog_mode(); /* save current tty modes */
2982 endwin(); /* restore original tty modes */
2983 run_io_fg(argv, dir);
2984 fprintf(stderr, "Press Enter to continue");
2987 redraw_display(TRUE);
2991 open_mergetool(const char *file)
2993 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
2995 open_external_viewer(mergetool_argv, opt_cdup);
2999 open_editor(bool from_root, const char *file)
3001 const char *editor_argv[] = { "vi", file, NULL };
3004 editor = getenv("GIT_EDITOR");
3005 if (!editor && *opt_editor)
3006 editor = opt_editor;
3008 editor = getenv("VISUAL");
3010 editor = getenv("EDITOR");
3014 editor_argv[0] = editor;
3015 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3019 open_run_request(enum request request)
3021 struct run_request *req = get_run_request(request);
3022 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3025 report("Unknown run request");
3029 if (format_argv(argv, req->argv, FORMAT_ALL))
3030 open_external_viewer(argv, NULL);
3035 * User request switch noodle
3039 view_driver(struct view *view, enum request request)
3043 if (request == REQ_NONE) {
3048 if (request > REQ_NONE) {
3049 open_run_request(request);
3050 /* FIXME: When all views can refresh always do this. */
3051 if (view == VIEW(REQ_VIEW_STATUS) ||
3052 view == VIEW(REQ_VIEW_MAIN) ||
3053 view == VIEW(REQ_VIEW_LOG) ||
3054 view == VIEW(REQ_VIEW_STAGE))
3055 request = REQ_REFRESH;
3060 if (view && view->lines) {
3061 request = view->ops->request(view, request, &view->line[view->lineno]);
3062 if (request == REQ_NONE)
3069 case REQ_MOVE_PAGE_UP:
3070 case REQ_MOVE_PAGE_DOWN:
3071 case REQ_MOVE_FIRST_LINE:
3072 case REQ_MOVE_LAST_LINE:
3073 move_view(view, request);
3076 case REQ_SCROLL_LINE_DOWN:
3077 case REQ_SCROLL_LINE_UP:
3078 case REQ_SCROLL_PAGE_DOWN:
3079 case REQ_SCROLL_PAGE_UP:
3080 scroll_view(view, request);
3083 case REQ_VIEW_BLAME:
3085 report("No file chosen, press %s to open tree view",
3086 get_key(REQ_VIEW_TREE));
3089 open_view(view, request, OPEN_DEFAULT);
3094 report("No file chosen, press %s to open tree view",
3095 get_key(REQ_VIEW_TREE));
3098 open_view(view, request, OPEN_DEFAULT);
3101 case REQ_VIEW_PAGER:
3102 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3103 report("No pager content, press %s to run command from prompt",
3104 get_key(REQ_PROMPT));
3107 open_view(view, request, OPEN_DEFAULT);
3110 case REQ_VIEW_STAGE:
3111 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3112 report("No stage content, press %s to open the status view and choose file",
3113 get_key(REQ_VIEW_STATUS));
3116 open_view(view, request, OPEN_DEFAULT);
3119 case REQ_VIEW_STATUS:
3120 if (opt_is_inside_work_tree == FALSE) {
3121 report("The status view requires a working tree");
3124 open_view(view, request, OPEN_DEFAULT);
3132 open_view(view, request, OPEN_DEFAULT);
3137 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3139 if ((view == VIEW(REQ_VIEW_DIFF) &&
3140 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3141 (view == VIEW(REQ_VIEW_DIFF) &&
3142 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3143 (view == VIEW(REQ_VIEW_STAGE) &&
3144 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3145 (view == VIEW(REQ_VIEW_BLOB) &&
3146 view->parent == VIEW(REQ_VIEW_TREE))) {
3149 view = view->parent;
3150 line = view->lineno;
3151 move_view(view, request);
3152 if (view_is_displayed(view))
3153 update_view_title(view);
3154 if (line != view->lineno)
3155 view->ops->request(view, REQ_ENTER,
3156 &view->line[view->lineno]);
3159 move_view(view, request);
3165 int nviews = displayed_views();
3166 int next_view = (current_view + 1) % nviews;
3168 if (next_view == current_view) {
3169 report("Only one view is displayed");
3173 current_view = next_view;
3174 /* Blur out the title of the previous view. */
3175 update_view_title(view);
3180 report("Refreshing is not yet supported for the %s view", view->name);
3184 if (displayed_views() == 2)
3185 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3188 case REQ_TOGGLE_LINENO:
3189 toggle_view_option(&opt_line_number, "line numbers");
3192 case REQ_TOGGLE_DATE:
3193 toggle_view_option(&opt_date, "date display");
3196 case REQ_TOGGLE_AUTHOR:
3197 toggle_view_option(&opt_author, "author display");
3200 case REQ_TOGGLE_REV_GRAPH:
3201 toggle_view_option(&opt_rev_graph, "revision graph display");
3204 case REQ_TOGGLE_REFS:
3205 toggle_view_option(&opt_show_refs, "reference display");
3209 case REQ_SEARCH_BACK:
3210 search_view(view, request);
3215 find_next(view, request);
3218 case REQ_STOP_LOADING:
3219 for (i = 0; i < ARRAY_SIZE(views); i++) {
3222 report("Stopped loading the %s view", view->name),
3223 end_update(view, TRUE);
3227 case REQ_SHOW_VERSION:
3228 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3231 case REQ_SCREEN_REDRAW:
3232 redraw_display(TRUE);
3236 report("Nothing to edit");
3240 report("Nothing to enter");
3243 case REQ_VIEW_CLOSE:
3244 /* XXX: Mark closed views by letting view->parent point to the
3245 * view itself. Parents to closed view should never be
3248 view->parent->parent != view->parent) {
3249 memset(display, 0, sizeof(display));
3251 display[current_view] = view->parent;
3252 view->parent = view;
3254 redraw_display(FALSE);
3263 report("Unknown key, press 'h' for help");
3272 * View backend utilities
3275 /* Parse author lines where the name may be empty:
3276 * author <email@address.tld> 1138474660 +0100
3279 parse_author_line(char *ident, char *author, size_t authorsize, struct tm *tm)
3281 char *nameend = strchr(ident, '<');
3282 char *emailend = strchr(ident, '>');
3284 if (nameend && emailend)
3285 *nameend = *emailend = 0;
3286 ident = chomp_string(ident);
3289 ident = chomp_string(nameend + 1);
3294 string_ncopy_do(author, authorsize, ident, strlen(ident));
3296 /* Parse epoch and timezone */
3297 if (emailend && emailend[1] == ' ') {
3298 char *secs = emailend + 2;
3299 char *zone = strchr(secs, ' ');
3300 time_t time = (time_t) atol(secs);
3302 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
3306 tz = ('0' - zone[1]) * 60 * 60 * 10;
3307 tz += ('0' - zone[2]) * 60 * 60;
3308 tz += ('0' - zone[3]) * 60;
3309 tz += ('0' - zone[4]) * 60;
3317 gmtime_r(&time, tm);
3326 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3328 char *text = line->data;
3330 if (opt_line_number && draw_lineno(view, lineno))
3333 draw_text(view, line->type, text, TRUE);
3338 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3340 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3341 char refbuf[SIZEOF_STR];
3344 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3345 ref = chomp_string(refbuf);
3350 /* This is the only fatal call, since it can "corrupt" the buffer. */
3351 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3358 add_pager_refs(struct view *view, struct line *line)
3360 char buf[SIZEOF_STR];
3361 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3363 size_t bufpos = 0, refpos = 0;
3364 const char *sep = "Refs: ";
3365 bool is_tag = FALSE;
3367 assert(line->type == LINE_COMMIT);
3369 refs = get_refs(commit_id);
3371 if (view == VIEW(REQ_VIEW_DIFF))
3372 goto try_add_describe_ref;
3377 struct ref *ref = refs[refpos];
3378 const char *fmt = ref->tag ? "%s[%s]" :
3379 ref->remote ? "%s<%s>" : "%s%s";
3381 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3386 } while (refs[refpos++]->next);
3388 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3389 try_add_describe_ref:
3390 /* Add <tag>-g<commit_id> "fake" reference. */
3391 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3398 add_line_text(view, buf, LINE_PP_REFS);
3402 pager_read(struct view *view, char *data)
3409 line = add_line_text(view, data, get_line_type(data));
3413 if (line->type == LINE_COMMIT &&
3414 (view == VIEW(REQ_VIEW_DIFF) ||
3415 view == VIEW(REQ_VIEW_LOG)))
3416 add_pager_refs(view, line);
3422 pager_request(struct view *view, enum request request, struct line *line)
3426 if (request != REQ_ENTER)
3429 if (line->type == LINE_COMMIT &&
3430 (view == VIEW(REQ_VIEW_LOG) ||
3431 view == VIEW(REQ_VIEW_PAGER))) {
3432 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3436 /* Always scroll the view even if it was split. That way
3437 * you can use Enter to scroll through the log view and
3438 * split open each commit diff. */
3439 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3441 /* FIXME: A minor workaround. Scrolling the view will call report("")
3442 * but if we are scrolling a non-current view this won't properly
3443 * update the view title. */
3445 update_view_title(view);
3451 pager_grep(struct view *view, struct line *line)
3454 char *text = line->data;
3459 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3466 pager_select(struct view *view, struct line *line)
3468 if (line->type == LINE_COMMIT) {
3469 char *text = (char *)line->data + STRING_SIZE("commit ");
3471 if (view != VIEW(REQ_VIEW_PAGER))
3472 string_copy_rev(view->ref, text);
3473 string_copy_rev(ref_commit, text);
3477 static struct view_ops pager_ops = {
3488 static const char *log_argv[SIZEOF_ARG] = {
3489 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3493 log_request(struct view *view, enum request request, struct line *line)
3498 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3501 return pager_request(view, request, line);
3505 static struct view_ops log_ops = {
3516 static const char *diff_argv[SIZEOF_ARG] = {
3517 "git", "show", "--pretty=fuller", "--no-color", "--root",
3518 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3521 static struct view_ops diff_ops = {
3537 help_open(struct view *view)
3539 int lines = ARRAY_SIZE(req_info) + 2;
3542 if (view->lines > 0)
3545 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3546 if (!req_info[i].request)
3549 lines += run_requests + 1;
3551 view->line = calloc(lines, sizeof(*view->line));
3555 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3557 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3560 if (req_info[i].request == REQ_NONE)
3563 if (!req_info[i].request) {
3564 add_line_text(view, "", LINE_DEFAULT);
3565 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3569 key = get_key(req_info[i].request);
3571 key = "(no key defined)";
3573 add_line_format(view, LINE_DEFAULT, " %-25s %s",
3574 key, req_info[i].help);
3578 add_line_text(view, "", LINE_DEFAULT);
3579 add_line_text(view, "External commands:", LINE_DEFAULT);
3582 for (i = 0; i < run_requests; i++) {
3583 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3585 char cmd[SIZEOF_STR];
3592 key = get_key_name(req->key);
3594 key = "(no key defined)";
3596 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3597 if (!string_format_from(cmd, &bufpos, "%s%s",
3598 argc ? " " : "", req->argv[argc]))
3601 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3602 keymap_table[req->keymap].name, key, cmd);
3608 static struct view_ops help_ops = {
3624 struct tree_stack_entry {
3625 struct tree_stack_entry *prev; /* Entry below this in the stack */
3626 unsigned long lineno; /* Line number to restore */
3627 char *name; /* Position of name in opt_path */
3630 /* The top of the path stack. */
3631 static struct tree_stack_entry *tree_stack = NULL;
3632 unsigned long tree_lineno = 0;
3635 pop_tree_stack_entry(void)
3637 struct tree_stack_entry *entry = tree_stack;
3639 tree_lineno = entry->lineno;
3641 tree_stack = entry->prev;
3646 push_tree_stack_entry(const char *name, unsigned long lineno)
3648 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3649 size_t pathlen = strlen(opt_path);
3654 entry->prev = tree_stack;
3655 entry->name = opt_path + pathlen;
3658 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3659 pop_tree_stack_entry();
3663 /* Move the current line to the first tree entry. */
3665 entry->lineno = lineno;
3668 /* Parse output from git-ls-tree(1):
3670 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3671 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3672 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3673 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3676 #define SIZEOF_TREE_ATTR \
3677 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3679 #define SIZEOF_TREE_PERM \
3680 STRING_SIZE("100644 ")
3682 #define TREE_ID_OFFSET \
3683 STRING_SIZE("100644 blob ")
3685 #define TREE_UP_FORMAT "040000 tree %s\t.."
3688 char id[SIZEOF_REV];
3690 struct tm time; /* Date from the author ident. */
3691 char author[75]; /* Author of the commit. */
3696 tree_path(struct line *line)
3698 return ((struct tree_entry *) line->data)->name;
3703 tree_compare_entry(struct line *line1, struct line *line2)
3705 if (line1->type != line2->type)
3706 return line1->type == LINE_TREE_DIR ? -1 : 1;
3707 return strcmp(tree_path(line1), tree_path(line2));
3710 static struct line *
3711 tree_entry(struct view *view, enum line_type type, const char *path,
3712 const char *mode, const char *id)
3714 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3715 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3717 if (!entry || !line) {
3722 strncpy(entry->name, path, strlen(path));
3724 entry->mode = strtoul(mode, NULL, 8);
3726 string_copy_rev(entry->id, id);
3732 tree_read_date(struct view *view, char *text, bool *read_date)
3734 static char author_name[SIZEOF_STR];
3735 static struct tm author_time;
3737 if (!text && *read_date) {
3742 char *path = *opt_path ? opt_path : ".";
3743 /* Find next entry to process */
3744 const char *log_file[] = {
3745 "git", "log", "--no-color", "--pretty=raw",
3746 "--cc", "--raw", view->id, "--", path, NULL
3750 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3751 report("Failed to load tree data");
3755 done_io(view->pipe);
3760 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3761 parse_author_line(text + STRING_SIZE("author "),
3762 author_name, sizeof(author_name), &author_time);
3764 } else if (*text == ':') {
3766 size_t annotated = 1;
3769 pos = strchr(text, '\t');
3773 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3774 text += strlen(opt_prefix);
3775 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3776 text += strlen(opt_path);
3777 pos = strchr(text, '/');
3781 for (i = 1; i < view->lines; i++) {
3782 struct line *line = &view->line[i];
3783 struct tree_entry *entry = line->data;
3785 annotated += !!*entry->author;
3786 if (*entry->author || strcmp(entry->name, text))
3789 string_copy(entry->author, author_name);
3790 memcpy(&entry->time, &author_time, sizeof(entry->time));
3795 if (annotated == view->lines)
3796 kill_io(view->pipe);
3802 tree_read(struct view *view, char *text)
3804 static bool read_date = FALSE;
3805 struct tree_entry *data;
3806 struct line *entry, *line;
3807 enum line_type type;
3808 size_t textlen = text ? strlen(text) : 0;
3809 char *path = text + SIZEOF_TREE_ATTR;
3811 if (read_date || !text)
3812 return tree_read_date(view, text, &read_date);
3814 if (textlen <= SIZEOF_TREE_ATTR)
3816 if (view->lines == 0 &&
3817 !tree_entry(view, LINE_TREE_PARENT, opt_path, NULL, NULL))
3820 /* Strip the path part ... */
3822 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3823 size_t striplen = strlen(opt_path);
3825 if (pathlen > striplen)
3826 memmove(path, path + striplen,
3827 pathlen - striplen + 1);
3829 /* Insert "link" to parent directory. */
3830 if (view->lines == 1 &&
3831 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3835 type = text[STRING_SIZE("100644 ")] == 't'
3836 ? LINE_TREE_DIR : LINE_TREE_FILE;
3838 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3843 /* Skip "Directory ..." and ".." line. */
3844 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3845 if (tree_compare_entry(line, entry) <= 0)
3848 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3852 for (; line <= entry; line++)
3853 line->dirty = line->cleareol = 1;
3857 if (tree_lineno > view->lineno) {
3858 view->lineno = tree_lineno;
3866 tree_draw(struct view *view, struct line *line, unsigned int lineno)
3868 struct tree_entry *entry = line->data;
3870 if (line->type == LINE_TREE_PARENT) {
3871 if (draw_text(view, line->type, "Directory path /", TRUE))
3874 char mode[11] = "-r--r--r--";
3876 if (S_ISDIR(entry->mode)) {
3877 mode[3] = mode[6] = mode[9] = 'x';
3880 if (S_ISLNK(entry->mode))
3882 if (entry->mode & S_IWUSR)
3884 if (entry->mode & S_IXUSR)
3886 if (entry->mode & S_IXGRP)
3888 if (entry->mode & S_IXOTH)
3890 if (draw_field(view, LINE_TREE_MODE, mode, 11, TRUE))
3894 draw_field(view, LINE_MAIN_AUTHOR, entry->author, opt_author_cols, TRUE))
3897 if (opt_date && draw_date(view, *entry->author ? &entry->time : NULL))
3900 if (draw_text(view, line->type, entry->name, TRUE))
3908 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
3909 int fd = mkstemp(file);
3912 report("Failed to create temporary file");
3913 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
3914 report("Failed to save blob data to file");
3916 open_editor(FALSE, file);
3922 tree_request(struct view *view, enum request request, struct line *line)
3924 enum open_flags flags;
3927 case REQ_VIEW_BLAME:
3928 if (line->type != LINE_TREE_FILE) {
3929 report("Blame only supported for files");
3933 string_copy(opt_ref, view->vid);
3937 if (line->type != LINE_TREE_FILE) {
3938 report("Edit only supported for files");
3939 } else if (!is_head_commit(view->vid)) {
3942 open_editor(TRUE, opt_file);
3946 case REQ_TREE_PARENT:
3948 /* quit view if at top of tree */
3949 return REQ_VIEW_CLOSE;
3952 line = &view->line[1];
3962 /* Cleanup the stack if the tree view is at a different tree. */
3963 while (!*opt_path && tree_stack)
3964 pop_tree_stack_entry();
3966 switch (line->type) {
3968 /* Depending on whether it is a subdir or parent (updir?) link
3969 * mangle the path buffer. */
3970 if (line == &view->line[1] && *opt_path) {
3971 pop_tree_stack_entry();
3974 const char *basename = tree_path(line);
3976 push_tree_stack_entry(basename, view->lineno);
3979 /* Trees and subtrees share the same ID, so they are not not
3980 * unique like blobs. */
3981 flags = OPEN_RELOAD;
3982 request = REQ_VIEW_TREE;
3985 case LINE_TREE_FILE:
3986 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3987 request = REQ_VIEW_BLOB;
3994 open_view(view, request, flags);
3995 if (request == REQ_VIEW_TREE) {
3996 view->lineno = tree_lineno;
4003 tree_select(struct view *view, struct line *line)
4005 struct tree_entry *entry = line->data;
4007 if (line->type == LINE_TREE_FILE) {
4008 string_copy_rev(ref_blob, entry->id);
4009 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4011 } else if (line->type != LINE_TREE_DIR) {
4015 string_copy_rev(view->ref, entry->id);
4018 static const char *tree_argv[SIZEOF_ARG] = {
4019 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4022 static struct view_ops tree_ops = {
4034 blob_read(struct view *view, char *line)
4038 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4042 blob_request(struct view *view, enum request request, struct line *line)
4049 return pager_request(view, request, line);
4053 static const char *blob_argv[SIZEOF_ARG] = {
4054 "git", "cat-file", "blob", "%(blob)", NULL
4057 static struct view_ops blob_ops = {
4071 * Loading the blame view is a two phase job:
4073 * 1. File content is read either using opt_file from the
4074 * filesystem or using git-cat-file.
4075 * 2. Then blame information is incrementally added by
4076 * reading output from git-blame.
4079 static const char *blame_head_argv[] = {
4080 "git", "blame", "--incremental", "--", "%(file)", NULL
4083 static const char *blame_ref_argv[] = {
4084 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4087 static const char *blame_cat_file_argv[] = {
4088 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4091 struct blame_commit {
4092 char id[SIZEOF_REV]; /* SHA1 ID. */
4093 char title[128]; /* First line of the commit message. */
4094 char author[75]; /* Author of the commit. */
4095 struct tm time; /* Date from the author ident. */
4096 char filename[128]; /* Name of file. */
4097 bool has_previous; /* Was a "previous" line detected. */
4101 struct blame_commit *commit;
4106 blame_open(struct view *view)
4108 if (*opt_ref || !io_open(&view->io, opt_file)) {
4109 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4113 setup_update(view, opt_file);
4114 string_format(view->ref, "%s ...", opt_file);
4119 static struct blame_commit *
4120 get_blame_commit(struct view *view, const char *id)
4124 for (i = 0; i < view->lines; i++) {
4125 struct blame *blame = view->line[i].data;
4130 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4131 return blame->commit;
4135 struct blame_commit *commit = calloc(1, sizeof(*commit));
4138 string_ncopy(commit->id, id, SIZEOF_REV);
4144 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4146 const char *pos = *posref;
4149 pos = strchr(pos + 1, ' ');
4150 if (!pos || !isdigit(pos[1]))
4152 *number = atoi(pos + 1);
4153 if (*number < min || *number > max)
4160 static struct blame_commit *
4161 parse_blame_commit(struct view *view, const char *text, int *blamed)
4163 struct blame_commit *commit;
4164 struct blame *blame;
4165 const char *pos = text + SIZEOF_REV - 1;
4169 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
4172 if (!parse_number(&pos, &lineno, 1, view->lines) ||
4173 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4176 commit = get_blame_commit(view, text);
4182 struct line *line = &view->line[lineno + group - 1];
4185 blame->commit = commit;
4193 blame_read_file(struct view *view, const char *line, bool *read_file)
4196 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4199 if (view->lines == 0 && !view->parent)
4200 die("No blame exist for %s", view->vid);
4202 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4203 report("Failed to load blame data");
4207 done_io(view->pipe);
4213 size_t linelen = strlen(line);
4214 struct blame *blame = malloc(sizeof(*blame) + linelen);
4216 blame->commit = NULL;
4217 strncpy(blame->text, line, linelen);
4218 blame->text[linelen] = 0;
4219 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4224 match_blame_header(const char *name, char **line)
4226 size_t namelen = strlen(name);
4227 bool matched = !strncmp(name, *line, namelen);
4236 blame_read(struct view *view, char *line)
4238 static struct blame_commit *commit = NULL;
4239 static int blamed = 0;
4240 static time_t author_time;
4241 static bool read_file = TRUE;
4244 return blame_read_file(view, line, &read_file);
4251 string_format(view->ref, "%s", view->vid);
4252 if (view_is_displayed(view)) {
4253 update_view_title(view);
4254 redraw_view_from(view, 0);
4260 commit = parse_blame_commit(view, line, &blamed);
4261 string_format(view->ref, "%s %2d%%", view->vid,
4262 view->lines ? blamed * 100 / view->lines : 0);
4264 } else if (match_blame_header("author ", &line)) {
4265 string_ncopy(commit->author, line, strlen(line));
4267 } else if (match_blame_header("author-time ", &line)) {
4268 author_time = (time_t) atol(line);
4270 } else if (match_blame_header("author-tz ", &line)) {
4273 tz = ('0' - line[1]) * 60 * 60 * 10;
4274 tz += ('0' - line[2]) * 60 * 60;
4275 tz += ('0' - line[3]) * 60;
4276 tz += ('0' - line[4]) * 60;
4282 gmtime_r(&author_time, &commit->time);
4284 } else if (match_blame_header("summary ", &line)) {
4285 string_ncopy(commit->title, line, strlen(line));
4287 } else if (match_blame_header("previous ", &line)) {
4288 commit->has_previous = TRUE;
4290 } else if (match_blame_header("filename ", &line)) {
4291 string_ncopy(commit->filename, line, strlen(line));
4299 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4301 struct blame *blame = line->data;
4302 struct tm *time = NULL;
4303 const char *id = NULL, *author = NULL;
4305 if (blame->commit && *blame->commit->filename) {
4306 id = blame->commit->id;
4307 author = blame->commit->author;
4308 time = &blame->commit->time;
4311 if (opt_date && draw_date(view, time))
4315 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
4318 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4321 if (draw_lineno(view, lineno))
4324 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4329 check_blame_commit(struct blame *blame)
4332 report("Commit data not loaded yet");
4333 else if (!strcmp(blame->commit->id, NULL_ID))
4334 report("No commit exist for the selected line");
4341 blame_request(struct view *view, enum request request, struct line *line)
4343 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4344 struct blame *blame = line->data;
4347 case REQ_VIEW_BLAME:
4348 if (check_blame_commit(blame)) {
4349 string_copy(opt_ref, blame->commit->id);
4350 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4355 if (!blame->commit) {
4356 report("No commit loaded yet");
4360 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4361 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4364 if (!strcmp(blame->commit->id, NULL_ID)) {
4365 struct view *diff = VIEW(REQ_VIEW_DIFF);
4366 const char *diff_index_argv[] = {
4367 "git", "diff-index", "--root", "--patch-with-stat",
4368 "-C", "-M", "HEAD", "--", view->vid, NULL
4371 if (!blame->commit->has_previous) {
4372 diff_index_argv[1] = "diff";
4373 diff_index_argv[2] = "--no-color";
4374 diff_index_argv[6] = "--";
4375 diff_index_argv[7] = "/dev/null";
4378 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4379 report("Failed to allocate diff command");
4382 flags |= OPEN_PREPARED;
4385 open_view(view, REQ_VIEW_DIFF, flags);
4386 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4387 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4398 blame_grep(struct view *view, struct line *line)
4400 struct blame *blame = line->data;
4401 struct blame_commit *commit = blame->commit;
4404 #define MATCH(text, on) \
4405 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4408 char buf[DATE_COLS + 1];
4410 if (MATCH(commit->title, 1) ||
4411 MATCH(commit->author, opt_author) ||
4412 MATCH(commit->id, opt_date))
4415 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4420 return MATCH(blame->text, 1);
4426 blame_select(struct view *view, struct line *line)
4428 struct blame *blame = line->data;
4429 struct blame_commit *commit = blame->commit;
4434 if (!strcmp(commit->id, NULL_ID))
4435 string_ncopy(ref_commit, "HEAD", 4);
4437 string_copy_rev(ref_commit, commit->id);
4440 static struct view_ops blame_ops = {
4459 char rev[SIZEOF_REV];
4460 char name[SIZEOF_STR];
4464 char rev[SIZEOF_REV];
4465 char name[SIZEOF_STR];
4469 static char status_onbranch[SIZEOF_STR];
4470 static struct status stage_status;
4471 static enum line_type stage_line_type;
4472 static size_t stage_chunks;
4473 static int *stage_chunk;
4475 /* This should work even for the "On branch" line. */
4477 status_has_none(struct view *view, struct line *line)
4479 return line < view->line + view->lines && !line[1].data;
4482 /* Get fields from the diff line:
4483 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4486 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4488 const char *old_mode = buf + 1;
4489 const char *new_mode = buf + 8;
4490 const char *old_rev = buf + 15;
4491 const char *new_rev = buf + 56;
4492 const char *status = buf + 97;
4495 old_mode[-1] != ':' ||
4496 new_mode[-1] != ' ' ||
4497 old_rev[-1] != ' ' ||
4498 new_rev[-1] != ' ' ||
4502 file->status = *status;
4504 string_copy_rev(file->old.rev, old_rev);
4505 string_copy_rev(file->new.rev, new_rev);
4507 file->old.mode = strtoul(old_mode, NULL, 8);
4508 file->new.mode = strtoul(new_mode, NULL, 8);
4510 file->old.name[0] = file->new.name[0] = 0;
4516 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4518 struct status *file = NULL;
4519 struct status *unmerged = NULL;
4523 if (!run_io(&io, argv, NULL, IO_RD))
4526 add_line_data(view, NULL, type);
4528 while ((buf = io_get(&io, 0, TRUE))) {
4530 file = calloc(1, sizeof(*file));
4531 if (!file || !add_line_data(view, file, type))
4535 /* Parse diff info part. */
4537 file->status = status;
4539 string_copy(file->old.rev, NULL_ID);
4541 } else if (!file->status) {
4542 if (!status_get_diff(file, buf, strlen(buf)))
4545 buf = io_get(&io, 0, TRUE);
4549 /* Collapse all 'M'odified entries that follow a
4550 * associated 'U'nmerged entry. */
4551 if (file->status == 'U') {
4554 } else if (unmerged) {
4555 int collapse = !strcmp(buf, unmerged->new.name);
4567 /* Grab the old name for rename/copy. */
4568 if (!*file->old.name &&
4569 (file->status == 'R' || file->status == 'C')) {
4570 string_ncopy(file->old.name, buf, strlen(buf));
4572 buf = io_get(&io, 0, TRUE);
4577 /* git-ls-files just delivers a NUL separated list of
4578 * file names similar to the second half of the
4579 * git-diff-* output. */
4580 string_ncopy(file->new.name, buf, strlen(buf));
4581 if (!*file->old.name)
4582 string_copy(file->old.name, file->new.name);
4586 if (io_error(&io)) {
4592 if (!view->line[view->lines - 1].data)
4593 add_line_data(view, NULL, LINE_STAT_NONE);
4599 /* Don't show unmerged entries in the staged section. */
4600 static const char *status_diff_index_argv[] = {
4601 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4602 "--cached", "-M", "HEAD", NULL
4605 static const char *status_diff_files_argv[] = {
4606 "git", "diff-files", "-z", NULL
4609 static const char *status_list_other_argv[] = {
4610 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4613 static const char *status_list_no_head_argv[] = {
4614 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4617 static const char *update_index_argv[] = {
4618 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4621 /* Restore the previous line number to stay in the context or select a
4622 * line with something that can be updated. */
4624 status_restore(struct view *view)
4626 if (view->p_lineno >= view->lines)
4627 view->p_lineno = view->lines - 1;
4628 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4630 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4633 /* If the above fails, always skip the "On branch" line. */
4634 if (view->p_lineno < view->lines)
4635 view->lineno = view->p_lineno;
4639 if (view->lineno < view->offset)
4640 view->offset = view->lineno;
4641 else if (view->offset + view->height <= view->lineno)
4642 view->offset = view->lineno - view->height + 1;
4644 view->p_restore = FALSE;
4647 /* First parse staged info using git-diff-index(1), then parse unstaged
4648 * info using git-diff-files(1), and finally untracked files using
4649 * git-ls-files(1). */
4651 status_open(struct view *view)
4655 add_line_data(view, NULL, LINE_STAT_HEAD);
4656 if (is_initial_commit())
4657 string_copy(status_onbranch, "Initial commit");
4658 else if (!*opt_head)
4659 string_copy(status_onbranch, "Not currently on any branch");
4660 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4663 run_io_bg(update_index_argv);
4665 if (is_initial_commit()) {
4666 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4668 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4672 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4673 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4676 /* Restore the exact position or use the specialized restore
4678 if (!view->p_restore)
4679 status_restore(view);
4684 status_draw(struct view *view, struct line *line, unsigned int lineno)
4686 struct status *status = line->data;
4687 enum line_type type;
4691 switch (line->type) {
4692 case LINE_STAT_STAGED:
4693 type = LINE_STAT_SECTION;
4694 text = "Changes to be committed:";
4697 case LINE_STAT_UNSTAGED:
4698 type = LINE_STAT_SECTION;
4699 text = "Changed but not updated:";
4702 case LINE_STAT_UNTRACKED:
4703 type = LINE_STAT_SECTION;
4704 text = "Untracked files:";
4707 case LINE_STAT_NONE:
4708 type = LINE_DEFAULT;
4709 text = " (no files)";
4712 case LINE_STAT_HEAD:
4713 type = LINE_STAT_HEAD;
4714 text = status_onbranch;
4721 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4723 buf[0] = status->status;
4724 if (draw_text(view, line->type, buf, TRUE))
4726 type = LINE_DEFAULT;
4727 text = status->new.name;
4730 draw_text(view, type, text, TRUE);
4735 status_enter(struct view *view, struct line *line)
4737 struct status *status = line->data;
4738 const char *oldpath = status ? status->old.name : NULL;
4739 /* Diffs for unmerged entries are empty when passing the new
4740 * path, so leave it empty. */
4741 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4743 enum open_flags split;
4744 struct view *stage = VIEW(REQ_VIEW_STAGE);
4746 if (line->type == LINE_STAT_NONE ||
4747 (!status && line[1].type == LINE_STAT_NONE)) {
4748 report("No file to diff");
4752 switch (line->type) {
4753 case LINE_STAT_STAGED:
4754 if (is_initial_commit()) {
4755 const char *no_head_diff_argv[] = {
4756 "git", "diff", "--no-color", "--patch-with-stat",
4757 "--", "/dev/null", newpath, NULL
4760 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4763 const char *index_show_argv[] = {
4764 "git", "diff-index", "--root", "--patch-with-stat",
4765 "-C", "-M", "--cached", "HEAD", "--",
4766 oldpath, newpath, NULL
4769 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4774 info = "Staged changes to %s";
4776 info = "Staged changes";
4779 case LINE_STAT_UNSTAGED:
4781 const char *files_show_argv[] = {
4782 "git", "diff-files", "--root", "--patch-with-stat",
4783 "-C", "-M", "--", oldpath, newpath, NULL
4786 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4789 info = "Unstaged changes to %s";
4791 info = "Unstaged changes";
4794 case LINE_STAT_UNTRACKED:
4796 report("No file to show");
4800 if (!suffixcmp(status->new.name, -1, "/")) {
4801 report("Cannot display a directory");
4805 if (!prepare_update_file(stage, newpath))
4807 info = "Untracked file %s";
4810 case LINE_STAT_HEAD:
4814 die("line type %d not handled in switch", line->type);
4817 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4818 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
4819 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4821 stage_status = *status;
4823 memset(&stage_status, 0, sizeof(stage_status));
4826 stage_line_type = line->type;
4828 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4835 status_exists(struct status *status, enum line_type type)
4837 struct view *view = VIEW(REQ_VIEW_STATUS);
4838 unsigned long lineno;
4840 for (lineno = 0; lineno < view->lines; lineno++) {
4841 struct line *line = &view->line[lineno];
4842 struct status *pos = line->data;
4844 if (line->type != type)
4846 if (!pos && (!status || !status->status) && line[1].data) {
4847 select_view_line(view, lineno);
4850 if (pos && !strcmp(status->new.name, pos->new.name)) {
4851 select_view_line(view, lineno);
4861 status_update_prepare(struct io *io, enum line_type type)
4863 const char *staged_argv[] = {
4864 "git", "update-index", "-z", "--index-info", NULL
4866 const char *others_argv[] = {
4867 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4871 case LINE_STAT_STAGED:
4872 return run_io(io, staged_argv, opt_cdup, IO_WR);
4874 case LINE_STAT_UNSTAGED:
4875 return run_io(io, others_argv, opt_cdup, IO_WR);
4877 case LINE_STAT_UNTRACKED:
4878 return run_io(io, others_argv, NULL, IO_WR);
4881 die("line type %d not handled in switch", type);
4887 status_update_write(struct io *io, struct status *status, enum line_type type)
4889 char buf[SIZEOF_STR];
4893 case LINE_STAT_STAGED:
4894 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4897 status->old.name, 0))
4901 case LINE_STAT_UNSTAGED:
4902 case LINE_STAT_UNTRACKED:
4903 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4908 die("line type %d not handled in switch", type);
4911 return io_write(io, buf, bufsize);
4915 status_update_file(struct status *status, enum line_type type)
4920 if (!status_update_prepare(&io, type))
4923 result = status_update_write(&io, status, type);
4929 status_update_files(struct view *view, struct line *line)
4933 struct line *pos = view->line + view->lines;
4937 if (!status_update_prepare(&io, line->type))
4940 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4943 for (file = 0, done = 0; result && file < files; line++, file++) {
4944 int almost_done = file * 100 / files;
4946 if (almost_done > done) {
4948 string_format(view->ref, "updating file %u of %u (%d%% done)",
4950 update_view_title(view);
4952 result = status_update_write(&io, line->data, line->type);
4960 status_update(struct view *view)
4962 struct line *line = &view->line[view->lineno];
4964 assert(view->lines);
4967 /* This should work even for the "On branch" line. */
4968 if (line < view->line + view->lines && !line[1].data) {
4969 report("Nothing to update");
4973 if (!status_update_files(view, line + 1)) {
4974 report("Failed to update file status");
4978 } else if (!status_update_file(line->data, line->type)) {
4979 report("Failed to update file status");
4987 status_revert(struct status *status, enum line_type type, bool has_none)
4989 if (!status || type != LINE_STAT_UNSTAGED) {
4990 if (type == LINE_STAT_STAGED) {
4991 report("Cannot revert changes to staged files");
4992 } else if (type == LINE_STAT_UNTRACKED) {
4993 report("Cannot revert changes to untracked files");
4994 } else if (has_none) {
4995 report("Nothing to revert");
4997 report("Cannot revert changes to multiple files");
5002 const char *checkout_argv[] = {
5003 "git", "checkout", "--", status->old.name, NULL
5006 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5008 return run_io_fg(checkout_argv, opt_cdup);
5013 status_request(struct view *view, enum request request, struct line *line)
5015 struct status *status = line->data;
5018 case REQ_STATUS_UPDATE:
5019 if (!status_update(view))
5023 case REQ_STATUS_REVERT:
5024 if (!status_revert(status, line->type, status_has_none(view, line)))
5028 case REQ_STATUS_MERGE:
5029 if (!status || status->status != 'U') {
5030 report("Merging only possible for files with unmerged status ('U').");
5033 open_mergetool(status->new.name);
5039 if (status->status == 'D') {
5040 report("File has been deleted.");
5044 open_editor(status->status != '?', status->new.name);
5047 case REQ_VIEW_BLAME:
5049 string_copy(opt_file, status->new.name);
5055 /* After returning the status view has been split to
5056 * show the stage view. No further reloading is
5058 status_enter(view, line);
5062 /* Simply reload the view. */
5069 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5075 status_select(struct view *view, struct line *line)
5077 struct status *status = line->data;
5078 char file[SIZEOF_STR] = "all files";
5082 if (status && !string_format(file, "'%s'", status->new.name))
5085 if (!status && line[1].type == LINE_STAT_NONE)
5088 switch (line->type) {
5089 case LINE_STAT_STAGED:
5090 text = "Press %s to unstage %s for commit";
5093 case LINE_STAT_UNSTAGED:
5094 text = "Press %s to stage %s for commit";
5097 case LINE_STAT_UNTRACKED:
5098 text = "Press %s to stage %s for addition";
5101 case LINE_STAT_HEAD:
5102 case LINE_STAT_NONE:
5103 text = "Nothing to update";
5107 die("line type %d not handled in switch", line->type);
5110 if (status && status->status == 'U') {
5111 text = "Press %s to resolve conflict in %s";
5112 key = get_key(REQ_STATUS_MERGE);
5115 key = get_key(REQ_STATUS_UPDATE);
5118 string_format(view->ref, text, key, file);
5122 status_grep(struct view *view, struct line *line)
5124 struct status *status = line->data;
5125 enum { S_STATUS, S_NAME, S_END } state;
5132 for (state = S_STATUS; state < S_END; state++) {
5136 case S_NAME: text = status->new.name; break;
5138 buf[0] = status->status;
5146 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5153 static struct view_ops status_ops = {
5166 stage_diff_write(struct io *io, struct line *line, struct line *end)
5168 while (line < end) {
5169 if (!io_write(io, line->data, strlen(line->data)) ||
5170 !io_write(io, "\n", 1))
5173 if (line->type == LINE_DIFF_CHUNK ||
5174 line->type == LINE_DIFF_HEADER)
5181 static struct line *
5182 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5184 for (; view->line < line; line--)
5185 if (line->type == type)
5192 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5194 const char *apply_argv[SIZEOF_ARG] = {
5195 "git", "apply", "--whitespace=nowarn", NULL
5197 struct line *diff_hdr;
5201 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5206 apply_argv[argc++] = "--cached";
5207 if (revert || stage_line_type == LINE_STAT_STAGED)
5208 apply_argv[argc++] = "-R";
5209 apply_argv[argc++] = "-";
5210 apply_argv[argc++] = NULL;
5211 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5214 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5215 !stage_diff_write(&io, chunk, view->line + view->lines))
5219 run_io_bg(update_index_argv);
5221 return chunk ? TRUE : FALSE;
5225 stage_update(struct view *view, struct line *line)
5227 struct line *chunk = NULL;
5229 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5230 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5233 if (!stage_apply_chunk(view, chunk, FALSE)) {
5234 report("Failed to apply chunk");
5238 } else if (!stage_status.status) {
5239 view = VIEW(REQ_VIEW_STATUS);
5241 for (line = view->line; line < view->line + view->lines; line++)
5242 if (line->type == stage_line_type)
5245 if (!status_update_files(view, line + 1)) {
5246 report("Failed to update files");
5250 } else if (!status_update_file(&stage_status, stage_line_type)) {
5251 report("Failed to update file");
5259 stage_revert(struct view *view, struct line *line)
5261 struct line *chunk = NULL;
5263 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5264 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5267 if (!prompt_yesno("Are you sure you want to revert changes?"))
5270 if (!stage_apply_chunk(view, chunk, TRUE)) {
5271 report("Failed to revert chunk");
5277 return status_revert(stage_status.status ? &stage_status : NULL,
5278 stage_line_type, FALSE);
5284 stage_next(struct view *view, struct line *line)
5288 if (!stage_chunks) {
5289 static size_t alloc = 0;
5292 for (line = view->line; line < view->line + view->lines; line++) {
5293 if (line->type != LINE_DIFF_CHUNK)
5296 tmp = realloc_items(stage_chunk, &alloc,
5297 stage_chunks, sizeof(*tmp));
5299 report("Allocation failure");
5304 stage_chunk[stage_chunks++] = line - view->line;
5308 for (i = 0; i < stage_chunks; i++) {
5309 if (stage_chunk[i] > view->lineno) {
5310 do_scroll_view(view, stage_chunk[i] - view->lineno);
5311 report("Chunk %d of %d", i + 1, stage_chunks);
5316 report("No next chunk found");
5320 stage_request(struct view *view, enum request request, struct line *line)
5323 case REQ_STATUS_UPDATE:
5324 if (!stage_update(view, line))
5328 case REQ_STATUS_REVERT:
5329 if (!stage_revert(view, line))
5333 case REQ_STAGE_NEXT:
5334 if (stage_line_type == LINE_STAT_UNTRACKED) {
5335 report("File is untracked; press %s to add",
5336 get_key(REQ_STATUS_UPDATE));
5339 stage_next(view, line);
5343 if (!stage_status.new.name[0])
5345 if (stage_status.status == 'D') {
5346 report("File has been deleted.");
5350 open_editor(stage_status.status != '?', stage_status.new.name);
5354 /* Reload everything ... */
5357 case REQ_VIEW_BLAME:
5358 if (stage_status.new.name[0]) {
5359 string_copy(opt_file, stage_status.new.name);
5365 return pager_request(view, request, line);
5371 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5372 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5374 /* Check whether the staged entry still exists, and close the
5375 * stage view if it doesn't. */
5376 if (!status_exists(&stage_status, stage_line_type)) {
5377 status_restore(VIEW(REQ_VIEW_STATUS));
5378 return REQ_VIEW_CLOSE;
5381 if (stage_line_type == LINE_STAT_UNTRACKED) {
5382 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5383 report("Cannot display a directory");
5387 if (!prepare_update_file(view, stage_status.new.name)) {
5388 report("Failed to open file: %s", strerror(errno));
5392 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5397 static struct view_ops stage_ops = {
5414 char id[SIZEOF_REV]; /* SHA1 ID. */
5415 char title[128]; /* First line of the commit message. */
5416 char author[75]; /* Author of the commit. */
5417 struct tm time; /* Date from the author ident. */
5418 struct ref **refs; /* Repository references. */
5419 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5420 size_t graph_size; /* The width of the graph array. */
5421 bool has_parents; /* Rewritten --parents seen. */
5424 /* Size of rev graph with no "padding" columns */
5425 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5428 struct rev_graph *prev, *next, *parents;
5429 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5431 struct commit *commit;
5433 unsigned int boundary:1;
5436 /* Parents of the commit being visualized. */
5437 static struct rev_graph graph_parents[4];
5439 /* The current stack of revisions on the graph. */
5440 static struct rev_graph graph_stacks[4] = {
5441 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5442 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5443 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5444 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5448 graph_parent_is_merge(struct rev_graph *graph)
5450 return graph->parents->size > 1;
5454 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5456 struct commit *commit = graph->commit;
5458 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5459 commit->graph[commit->graph_size++] = symbol;
5463 clear_rev_graph(struct rev_graph *graph)
5465 graph->boundary = 0;
5466 graph->size = graph->pos = 0;
5467 graph->commit = NULL;
5468 memset(graph->parents, 0, sizeof(*graph->parents));
5472 done_rev_graph(struct rev_graph *graph)
5474 if (graph_parent_is_merge(graph) &&
5475 graph->pos < graph->size - 1 &&
5476 graph->next->size == graph->size + graph->parents->size - 1) {
5477 size_t i = graph->pos + graph->parents->size - 1;
5479 graph->commit->graph_size = i * 2;
5480 while (i < graph->next->size - 1) {
5481 append_to_rev_graph(graph, ' ');
5482 append_to_rev_graph(graph, '\\');
5487 clear_rev_graph(graph);
5491 push_rev_graph(struct rev_graph *graph, const char *parent)
5495 /* "Collapse" duplicate parents lines.
5497 * FIXME: This needs to also update update the drawn graph but
5498 * for now it just serves as a method for pruning graph lines. */
5499 for (i = 0; i < graph->size; i++)
5500 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5503 if (graph->size < SIZEOF_REVITEMS) {
5504 string_copy_rev(graph->rev[graph->size++], parent);
5509 get_rev_graph_symbol(struct rev_graph *graph)
5513 if (graph->boundary)
5514 symbol = REVGRAPH_BOUND;
5515 else if (graph->parents->size == 0)
5516 symbol = REVGRAPH_INIT;
5517 else if (graph_parent_is_merge(graph))
5518 symbol = REVGRAPH_MERGE;
5519 else if (graph->pos >= graph->size)
5520 symbol = REVGRAPH_BRANCH;
5522 symbol = REVGRAPH_COMMIT;
5528 draw_rev_graph(struct rev_graph *graph)
5531 chtype separator, line;
5533 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5534 static struct rev_filler fillers[] = {
5540 chtype symbol = get_rev_graph_symbol(graph);
5541 struct rev_filler *filler;
5544 if (opt_line_graphics)
5545 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5547 filler = &fillers[DEFAULT];
5549 for (i = 0; i < graph->pos; i++) {
5550 append_to_rev_graph(graph, filler->line);
5551 if (graph_parent_is_merge(graph->prev) &&
5552 graph->prev->pos == i)
5553 filler = &fillers[RSHARP];
5555 append_to_rev_graph(graph, filler->separator);
5558 /* Place the symbol for this revision. */
5559 append_to_rev_graph(graph, symbol);
5561 if (graph->prev->size > graph->size)
5562 filler = &fillers[RDIAG];
5564 filler = &fillers[DEFAULT];
5568 for (; i < graph->size; i++) {
5569 append_to_rev_graph(graph, filler->separator);
5570 append_to_rev_graph(graph, filler->line);
5571 if (graph_parent_is_merge(graph->prev) &&
5572 i < graph->prev->pos + graph->parents->size)
5573 filler = &fillers[RSHARP];
5574 if (graph->prev->size > graph->size)
5575 filler = &fillers[LDIAG];
5578 if (graph->prev->size > graph->size) {
5579 append_to_rev_graph(graph, filler->separator);
5580 if (filler->line != ' ')
5581 append_to_rev_graph(graph, filler->line);
5585 /* Prepare the next rev graph */
5587 prepare_rev_graph(struct rev_graph *graph)
5591 /* First, traverse all lines of revisions up to the active one. */
5592 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5593 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5596 push_rev_graph(graph->next, graph->rev[graph->pos]);
5599 /* Interleave the new revision parent(s). */
5600 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5601 push_rev_graph(graph->next, graph->parents->rev[i]);
5603 /* Lastly, put any remaining revisions. */
5604 for (i = graph->pos + 1; i < graph->size; i++)
5605 push_rev_graph(graph->next, graph->rev[i]);
5609 update_rev_graph(struct view *view, struct rev_graph *graph)
5611 /* If this is the finalizing update ... */
5613 prepare_rev_graph(graph);
5615 /* Graph visualization needs a one rev look-ahead,
5616 * so the first update doesn't visualize anything. */
5617 if (!graph->prev->commit)
5620 if (view->lines > 2)
5621 view->line[view->lines - 3].dirty = 1;
5622 if (view->lines > 1)
5623 view->line[view->lines - 2].dirty = 1;
5624 draw_rev_graph(graph->prev);
5625 done_rev_graph(graph->prev->prev);
5633 static const char *main_argv[SIZEOF_ARG] = {
5634 "git", "log", "--no-color", "--pretty=raw", "--parents",
5635 "--topo-order", "%(head)", NULL
5639 main_draw(struct view *view, struct line *line, unsigned int lineno)
5641 struct commit *commit = line->data;
5643 if (!*commit->author)
5646 if (opt_date && draw_date(view, &commit->time))
5650 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5653 if (opt_rev_graph && commit->graph_size &&
5654 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5657 if (opt_show_refs && commit->refs) {
5661 enum line_type type;
5663 if (commit->refs[i]->head)
5664 type = LINE_MAIN_HEAD;
5665 else if (commit->refs[i]->ltag)
5666 type = LINE_MAIN_LOCAL_TAG;
5667 else if (commit->refs[i]->tag)
5668 type = LINE_MAIN_TAG;
5669 else if (commit->refs[i]->tracked)
5670 type = LINE_MAIN_TRACKED;
5671 else if (commit->refs[i]->remote)
5672 type = LINE_MAIN_REMOTE;
5674 type = LINE_MAIN_REF;
5676 if (draw_text(view, type, "[", TRUE) ||
5677 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5678 draw_text(view, type, "]", TRUE))
5681 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5683 } while (commit->refs[i++]->next);
5686 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5690 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5692 main_read(struct view *view, char *line)
5694 static struct rev_graph *graph = graph_stacks;
5695 enum line_type type;
5696 struct commit *commit;
5701 if (!view->lines && !view->parent)
5702 die("No revisions match the given arguments.");
5703 if (view->lines > 0) {
5704 commit = view->line[view->lines - 1].data;
5705 view->line[view->lines - 1].dirty = 1;
5706 if (!*commit->author) {
5709 graph->commit = NULL;
5712 update_rev_graph(view, graph);
5714 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5715 clear_rev_graph(&graph_stacks[i]);
5719 type = get_line_type(line);
5720 if (type == LINE_COMMIT) {
5721 commit = calloc(1, sizeof(struct commit));
5725 line += STRING_SIZE("commit ");
5727 graph->boundary = 1;
5731 string_copy_rev(commit->id, line);
5732 commit->refs = get_refs(commit->id);
5733 graph->commit = commit;
5734 add_line_data(view, commit, LINE_MAIN_COMMIT);
5736 while ((line = strchr(line, ' '))) {
5738 push_rev_graph(graph->parents, line);
5739 commit->has_parents = TRUE;
5746 commit = view->line[view->lines - 1].data;
5750 if (commit->has_parents)
5752 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5756 parse_author_line(line + STRING_SIZE("author "),
5757 commit->author, sizeof(commit->author),
5759 update_rev_graph(view, graph);
5760 graph = graph->next;
5764 /* Fill in the commit title if it has not already been set. */
5765 if (commit->title[0])
5768 /* Require titles to start with a non-space character at the
5769 * offset used by git log. */
5770 if (strncmp(line, " ", 4))
5773 /* Well, if the title starts with a whitespace character,
5774 * try to be forgiving. Otherwise we end up with no title. */
5775 while (isspace(*line))
5779 /* FIXME: More graceful handling of titles; append "..." to
5780 * shortened titles, etc. */
5782 string_ncopy(commit->title, line, strlen(line));
5783 view->line[view->lines - 1].dirty = 1;
5790 main_request(struct view *view, enum request request, struct line *line)
5792 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5796 open_view(view, REQ_VIEW_DIFF, flags);
5800 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5810 grep_refs(struct ref **refs, regex_t *regex)
5818 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5820 } while (refs[i++]->next);
5826 main_grep(struct view *view, struct line *line)
5828 struct commit *commit = line->data;
5829 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5830 char buf[DATE_COLS + 1];
5833 for (state = S_TITLE; state < S_END; state++) {
5837 case S_TITLE: text = commit->title; break;
5841 text = commit->author;
5846 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5853 if (grep_refs(commit->refs, view->regex) == TRUE)
5860 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5868 main_select(struct view *view, struct line *line)
5870 struct commit *commit = line->data;
5872 string_copy_rev(view->ref, commit->id);
5873 string_copy_rev(ref_commit, view->ref);
5876 static struct view_ops main_ops = {
5889 * Unicode / UTF-8 handling
5891 * NOTE: Much of the following code for dealing with unicode is derived from
5892 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5893 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5896 /* I've (over)annotated a lot of code snippets because I am not entirely
5897 * confident that the approach taken by this small UTF-8 interface is correct.
5901 unicode_width(unsigned long c)
5904 (c <= 0x115f /* Hangul Jamo */
5907 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5909 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5910 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5911 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5912 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5913 || (c >= 0xffe0 && c <= 0xffe6)
5914 || (c >= 0x20000 && c <= 0x2fffd)
5915 || (c >= 0x30000 && c <= 0x3fffd)))
5919 return opt_tab_size;
5924 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5925 * Illegal bytes are set one. */
5926 static const unsigned char utf8_bytes[256] = {
5927 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,
5928 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,
5929 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,
5930 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,
5931 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,
5932 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,
5933 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,
5934 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,
5937 /* Decode UTF-8 multi-byte representation into a unicode character. */
5938 static inline unsigned long
5939 utf8_to_unicode(const char *string, size_t length)
5941 unsigned long unicode;
5945 unicode = string[0];
5948 unicode = (string[0] & 0x1f) << 6;
5949 unicode += (string[1] & 0x3f);
5952 unicode = (string[0] & 0x0f) << 12;
5953 unicode += ((string[1] & 0x3f) << 6);
5954 unicode += (string[2] & 0x3f);
5957 unicode = (string[0] & 0x0f) << 18;
5958 unicode += ((string[1] & 0x3f) << 12);
5959 unicode += ((string[2] & 0x3f) << 6);
5960 unicode += (string[3] & 0x3f);
5963 unicode = (string[0] & 0x0f) << 24;
5964 unicode += ((string[1] & 0x3f) << 18);
5965 unicode += ((string[2] & 0x3f) << 12);
5966 unicode += ((string[3] & 0x3f) << 6);
5967 unicode += (string[4] & 0x3f);
5970 unicode = (string[0] & 0x01) << 30;
5971 unicode += ((string[1] & 0x3f) << 24);
5972 unicode += ((string[2] & 0x3f) << 18);
5973 unicode += ((string[3] & 0x3f) << 12);
5974 unicode += ((string[4] & 0x3f) << 6);
5975 unicode += (string[5] & 0x3f);
5978 die("Invalid unicode length");
5981 /* Invalid characters could return the special 0xfffd value but NUL
5982 * should be just as good. */
5983 return unicode > 0xffff ? 0 : unicode;
5986 /* Calculates how much of string can be shown within the given maximum width
5987 * and sets trimmed parameter to non-zero value if all of string could not be
5988 * shown. If the reserve flag is TRUE, it will reserve at least one
5989 * trailing character, which can be useful when drawing a delimiter.
5991 * Returns the number of bytes to output from string to satisfy max_width. */
5993 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5995 const char *start = string;
5996 const char *end = strchr(string, '\0');
5997 unsigned char last_bytes = 0;
5998 size_t last_ucwidth = 0;
6003 while (string < end) {
6004 int c = *(unsigned char *) string;
6005 unsigned char bytes = utf8_bytes[c];
6007 unsigned long unicode;
6009 if (string + bytes > end)
6012 /* Change representation to figure out whether
6013 * it is a single- or double-width character. */
6015 unicode = utf8_to_unicode(string, bytes);
6016 /* FIXME: Graceful handling of invalid unicode character. */
6020 ucwidth = unicode_width(unicode);
6022 if (*width > max_width) {
6025 if (reserve && *width == max_width) {
6026 string -= last_bytes;
6027 *width -= last_ucwidth;
6034 last_ucwidth = ucwidth;
6037 return string - start;
6045 /* Whether or not the curses interface has been initialized. */
6046 static bool cursed = FALSE;
6048 /* The status window is used for polling keystrokes. */
6049 static WINDOW *status_win;
6051 static bool status_empty = TRUE;
6053 /* Update status and title window. */
6055 report(const char *msg, ...)
6057 struct view *view = display[current_view];
6063 char buf[SIZEOF_STR];
6066 va_start(args, msg);
6067 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6068 buf[sizeof(buf) - 1] = 0;
6069 buf[sizeof(buf) - 2] = '.';
6070 buf[sizeof(buf) - 3] = '.';
6071 buf[sizeof(buf) - 4] = '.';
6077 if (!status_empty || *msg) {
6080 va_start(args, msg);
6082 wmove(status_win, 0, 0);
6084 vwprintw(status_win, msg, args);
6085 status_empty = FALSE;
6087 status_empty = TRUE;
6089 wclrtoeol(status_win);
6090 wrefresh(status_win);
6095 update_view_title(view);
6096 update_display_cursor(view);
6099 /* Controls when nodelay should be in effect when polling user input. */
6101 set_nonblocking_input(bool loading)
6103 static unsigned int loading_views;
6105 if ((loading == FALSE && loading_views-- == 1) ||
6106 (loading == TRUE && loading_views++ == 0))
6107 nodelay(status_win, loading);
6115 /* Initialize the curses library */
6116 if (isatty(STDIN_FILENO)) {
6117 cursed = !!initscr();
6120 /* Leave stdin and stdout alone when acting as a pager. */
6121 opt_tty = fopen("/dev/tty", "r+");
6123 die("Failed to open /dev/tty");
6124 cursed = !!newterm(NULL, opt_tty, opt_tty);
6128 die("Failed to initialize curses");
6130 nonl(); /* Tell curses not to do NL->CR/NL on output */
6131 cbreak(); /* Take input chars one at a time, no wait for \n */
6132 noecho(); /* Don't echo input */
6133 leaveok(stdscr, TRUE);
6138 getmaxyx(stdscr, y, x);
6139 status_win = newwin(1, 0, y - 1, 0);
6141 die("Failed to create status window");
6143 /* Enable keyboard mapping */
6144 keypad(status_win, TRUE);
6145 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6147 TABSIZE = opt_tab_size;
6148 if (opt_line_graphics) {
6149 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6154 get_input(bool prompting)
6163 foreach_view (view, i)
6166 /* Refresh, accept single keystroke of input */
6167 key = wgetch(status_win);
6169 /* wgetch() with nodelay() enabled returns ERR when
6170 * there's no input. */
6174 } else if (key == KEY_RESIZE) {
6177 getmaxyx(stdscr, height, width);
6179 /* Resize the status view and let the view driver take
6180 * care of resizing the displayed views. */
6182 redraw_display(TRUE);
6183 wresize(status_win, 1, width);
6184 mvwin(status_win, height - 1, 0);
6185 wrefresh(status_win);
6195 prompt_yesno(const char *prompt)
6197 enum { WAIT, STOP, CANCEL } status = WAIT;
6198 bool answer = FALSE;
6200 while (status == WAIT) {
6203 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
6204 wclrtoeol(status_win);
6206 key = get_input(TRUE);
6227 /* Clear the status window */
6228 status_empty = FALSE;
6235 read_prompt(const char *prompt)
6237 enum { READING, STOP, CANCEL } status = READING;
6238 static char buf[SIZEOF_STR];
6241 while (status == READING) {
6244 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6245 wclrtoeol(status_win);
6247 key = get_input(TRUE);
6252 status = pos ? STOP : CANCEL;
6267 if (pos >= sizeof(buf)) {
6268 report("Input string too long");
6273 buf[pos++] = (char) key;
6277 /* Clear the status window */
6278 status_empty = FALSE;
6281 if (status == CANCEL)
6290 * Repository properties
6294 git_properties(const char **argv, const char *separators,
6295 int (*read_property)(char *, size_t, char *, size_t))
6299 if (init_io_rd(&io, argv, NULL, FORMAT_NONE))
6300 return read_properties(&io, separators, read_property);
6304 static struct ref *refs = NULL;
6305 static size_t refs_alloc = 0;
6306 static size_t refs_size = 0;
6308 /* Id <-> ref store */
6309 static struct ref ***id_refs = NULL;
6310 static size_t id_refs_alloc = 0;
6311 static size_t id_refs_size = 0;
6314 compare_refs(const void *ref1_, const void *ref2_)
6316 const struct ref *ref1 = *(const struct ref **)ref1_;
6317 const struct ref *ref2 = *(const struct ref **)ref2_;
6319 if (ref1->tag != ref2->tag)
6320 return ref2->tag - ref1->tag;
6321 if (ref1->ltag != ref2->ltag)
6322 return ref2->ltag - ref2->ltag;
6323 if (ref1->head != ref2->head)
6324 return ref2->head - ref1->head;
6325 if (ref1->tracked != ref2->tracked)
6326 return ref2->tracked - ref1->tracked;
6327 if (ref1->remote != ref2->remote)
6328 return ref2->remote - ref1->remote;
6329 return strcmp(ref1->name, ref2->name);
6332 static struct ref **
6333 get_refs(const char *id)
6335 struct ref ***tmp_id_refs;
6336 struct ref **ref_list = NULL;
6337 size_t ref_list_alloc = 0;
6338 size_t ref_list_size = 0;
6341 for (i = 0; i < id_refs_size; i++)
6342 if (!strcmp(id, id_refs[i][0]->id))
6345 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6350 id_refs = tmp_id_refs;
6352 for (i = 0; i < refs_size; i++) {
6355 if (strcmp(id, refs[i].id))
6358 tmp = realloc_items(ref_list, &ref_list_alloc,
6359 ref_list_size + 1, sizeof(*ref_list));
6367 ref_list[ref_list_size] = &refs[i];
6368 /* XXX: The properties of the commit chains ensures that we can
6369 * safely modify the shared ref. The repo references will
6370 * always be similar for the same id. */
6371 ref_list[ref_list_size]->next = 1;
6377 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6378 ref_list[ref_list_size - 1]->next = 0;
6379 id_refs[id_refs_size++] = ref_list;
6386 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6391 bool remote = FALSE;
6392 bool tracked = FALSE;
6393 bool check_replace = FALSE;
6396 if (!prefixcmp(name, "refs/tags/")) {
6397 if (!suffixcmp(name, namelen, "^{}")) {
6400 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6401 check_replace = TRUE;
6407 namelen -= STRING_SIZE("refs/tags/");
6408 name += STRING_SIZE("refs/tags/");
6410 } else if (!prefixcmp(name, "refs/remotes/")) {
6412 namelen -= STRING_SIZE("refs/remotes/");
6413 name += STRING_SIZE("refs/remotes/");
6414 tracked = !strcmp(opt_remote, name);
6416 } else if (!prefixcmp(name, "refs/heads/")) {
6417 namelen -= STRING_SIZE("refs/heads/");
6418 name += STRING_SIZE("refs/heads/");
6419 head = !strncmp(opt_head, name, namelen);
6421 } else if (!strcmp(name, "HEAD")) {
6422 string_ncopy(opt_head_rev, id, idlen);
6426 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6427 /* it's an annotated tag, replace the previous sha1 with the
6428 * resolved commit id; relies on the fact git-ls-remote lists
6429 * the commit id of an annotated tag right before the commit id
6431 refs[refs_size - 1].ltag = ltag;
6432 string_copy_rev(refs[refs_size - 1].id, id);
6436 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6440 ref = &refs[refs_size++];
6441 ref->name = malloc(namelen + 1);
6445 strncpy(ref->name, name, namelen);
6446 ref->name[namelen] = 0;
6450 ref->remote = remote;
6451 ref->tracked = tracked;
6452 string_copy_rev(ref->id, id);
6460 static const char *ls_remote_argv[SIZEOF_ARG] = {
6461 "git", "ls-remote", ".", NULL
6463 static bool init = FALSE;
6466 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6473 while (refs_size > 0)
6474 free(refs[--refs_size].name);
6475 while (id_refs_size > 0)
6476 free(id_refs[--id_refs_size]);
6478 return git_properties(ls_remote_argv, "\t", read_ref);
6482 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6484 if (!strcmp(name, "i18n.commitencoding"))
6485 string_ncopy(opt_encoding, value, valuelen);
6487 if (!strcmp(name, "core.editor"))
6488 string_ncopy(opt_editor, value, valuelen);
6490 /* branch.<head>.remote */
6492 !strncmp(name, "branch.", 7) &&
6493 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6494 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6495 string_ncopy(opt_remote, value, valuelen);
6497 if (*opt_head && *opt_remote &&
6498 !strncmp(name, "branch.", 7) &&
6499 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6500 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6501 size_t from = strlen(opt_remote);
6503 if (!prefixcmp(value, "refs/heads/")) {
6504 value += STRING_SIZE("refs/heads/");
6505 valuelen -= STRING_SIZE("refs/heads/");
6508 if (!string_format_from(opt_remote, &from, "/%s", value))
6516 load_git_config(void)
6518 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6520 return git_properties(config_list_argv, "=", read_repo_config_option);
6524 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6526 if (!opt_git_dir[0]) {
6527 string_ncopy(opt_git_dir, name, namelen);
6529 } else if (opt_is_inside_work_tree == -1) {
6530 /* This can be 3 different values depending on the
6531 * version of git being used. If git-rev-parse does not
6532 * understand --is-inside-work-tree it will simply echo
6533 * the option else either "true" or "false" is printed.
6534 * Default to true for the unknown case. */
6535 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6537 } else if (*name == '.') {
6538 string_ncopy(opt_cdup, name, namelen);
6541 string_ncopy(opt_prefix, name, namelen);
6548 load_repo_info(void)
6550 const char *head_argv[] = {
6551 "git", "symbolic-ref", "HEAD", NULL
6553 const char *rev_parse_argv[] = {
6554 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6555 "--show-cdup", "--show-prefix", NULL
6558 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6559 chomp_string(opt_head);
6560 if (!prefixcmp(opt_head, "refs/heads/")) {
6561 char *offset = opt_head + STRING_SIZE("refs/heads/");
6563 memmove(opt_head, offset, strlen(offset) + 1);
6567 return git_properties(rev_parse_argv, "=", read_repo_info);
6571 read_properties(struct io *io, const char *separators,
6572 int (*read_property)(char *, size_t, char *, size_t))
6580 while (state == OK && (name = io_get(io, '\n', TRUE))) {
6585 name = chomp_string(name);
6586 namelen = strcspn(name, separators);
6588 if (name[namelen]) {
6590 value = chomp_string(name + namelen + 1);
6591 valuelen = strlen(value);
6598 state = read_property(name, namelen, value, valuelen);
6601 if (state != ERR && io_error(io))
6613 static void __NORETURN
6616 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6622 static void __NORETURN
6623 die(const char *err, ...)
6629 va_start(args, err);
6630 fputs("tig: ", stderr);
6631 vfprintf(stderr, err, args);
6632 fputs("\n", stderr);
6639 warn(const char *msg, ...)
6643 va_start(args, msg);
6644 fputs("tig warning: ", stderr);
6645 vfprintf(stderr, msg, args);
6646 fputs("\n", stderr);
6651 main(int argc, const char *argv[])
6653 const char **run_argv = NULL;
6655 enum request request;
6658 signal(SIGINT, quit);
6660 if (setlocale(LC_ALL, "")) {
6661 char *codeset = nl_langinfo(CODESET);
6663 string_ncopy(opt_codeset, codeset, strlen(codeset));
6666 if (load_repo_info() == ERR)
6667 die("Failed to load repo info.");
6669 if (load_options() == ERR)
6670 die("Failed to load user config.");
6672 if (load_git_config() == ERR)
6673 die("Failed to load repo config.");
6675 request = parse_options(argc, argv, &run_argv);
6676 if (request == REQ_NONE)
6679 /* Require a git repository unless when running in pager mode. */
6680 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6681 die("Not a git repository");
6683 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6686 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6687 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6688 if (opt_iconv == ICONV_NONE)
6689 die("Failed to initialize character set conversion");
6692 if (load_refs() == ERR)
6693 die("Failed to load refs.");
6695 foreach_view (view, i)
6696 argv_from_env(view->ops->argv, view->cmd_env);
6700 if (request == REQ_VIEW_PAGER || run_argv) {
6701 if (request == REQ_VIEW_PAGER)
6702 io_open(&VIEW(request)->io, "");
6703 else if (!prepare_update(VIEW(request), run_argv, NULL, FORMAT_NONE))
6704 die("Failed to format arguments");
6705 open_view(NULL, request, OPEN_PREPARED);
6709 while (view_driver(display[current_view], request)) {
6710 int key = get_input(FALSE);
6712 view = display[current_view];
6713 request = get_keybinding(view->keymap, key);
6715 /* Some low-level request handling. This keeps access to
6716 * status_win restricted. */
6720 char *cmd = read_prompt(":");
6723 struct view *next = VIEW(REQ_VIEW_PAGER);
6724 const char *argv[SIZEOF_ARG] = { "git" };
6727 /* When running random commands, initially show the
6728 * command in the title. However, it maybe later be
6729 * overwritten if a commit line is selected. */
6730 string_ncopy(next->ref, cmd, strlen(cmd));
6732 if (!argv_from_string(argv, &argc, cmd)) {
6733 report("Too many arguments");
6734 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6735 report("Failed to format command");
6737 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6745 case REQ_SEARCH_BACK:
6747 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6748 char *search = read_prompt(prompt);
6751 string_ncopy(opt_search, search, strlen(search));