1 /* Copyright (c) 2006-2009 Jonas Fonseca <fonseca@diku.dk>
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License as
5 * published by the Free Software Foundation; either version 2 of
6 * the License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
19 #define TIG_VERSION "unknown-version"
34 #include <sys/types.h>
37 #include <sys/select.h>
48 /* ncurses(3): Must be defined to have extended wide-character functions. */
49 #define _XOPEN_SOURCE_EXTENDED
51 #ifdef HAVE_NCURSESW_NCURSES_H
52 #include <ncursesw/ncurses.h>
54 #ifdef HAVE_NCURSES_NCURSES_H
55 #include <ncurses/ncurses.h>
62 #define __NORETURN __attribute__((__noreturn__))
67 static void __NORETURN die(const char *err, ...);
68 static void warn(const char *msg, ...);
69 static void report(const char *msg, ...);
70 static void set_nonblocking_input(bool loading);
71 static size_t utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve);
72 static bool prompt_yesno(const char *prompt);
73 static int load_refs(void);
75 #define ABS(x) ((x) >= 0 ? (x) : -(x))
76 #define MIN(x, y) ((x) < (y) ? (x) : (y))
78 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
79 #define STRING_SIZE(x) (sizeof(x) - 1)
81 #define SIZEOF_STR 1024 /* Default string size. */
82 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
83 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL. */
84 #define SIZEOF_ARG 32 /* Default argument array size. */
88 #define REVGRAPH_INIT 'I'
89 #define REVGRAPH_MERGE 'M'
90 #define REVGRAPH_BRANCH '+'
91 #define REVGRAPH_COMMIT '*'
92 #define REVGRAPH_BOUND '^'
94 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
96 /* This color name can be used to refer to the default term colors. */
97 #define COLOR_DEFAULT (-1)
99 #define ICONV_NONE ((iconv_t) -1)
101 #define ICONV_CONST /* nothing */
104 /* The format and size of the date column in the main view. */
105 #define DATE_FORMAT "%Y-%m-%d %H:%M"
106 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
108 #define AUTHOR_COLS 20
111 /* The default interval between line numbers. */
112 #define NUMBER_INTERVAL 5
116 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
118 #define NULL_ID "0000000000000000000000000000000000000000"
121 #define GIT_CONFIG "config"
124 /* Some ascii-shorthands fitted into the ncurses namespace. */
126 #define KEY_RETURN '\r'
131 char *name; /* Ref name; tag or head names are shortened. */
132 char id[SIZEOF_REV]; /* Commit SHA1 ID */
133 unsigned int head:1; /* Is it the current HEAD? */
134 unsigned int tag:1; /* Is it a tag? */
135 unsigned int ltag:1; /* If so, is the tag local? */
136 unsigned int remote:1; /* Is it a remote ref? */
137 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
138 unsigned int next:1; /* For ref lists: are there more refs? */
141 static struct ref **get_refs(const char *id);
144 FORMAT_ALL, /* Perform replacement in all arguments. */
145 FORMAT_DASH, /* Perform replacement up until "--". */
146 FORMAT_NONE /* No replacement should be performed. */
149 static bool format_argv(const char *dst[], const char *src[], enum format_flags flags);
158 set_from_int_map(struct int_map *map, size_t map_size,
159 int *value, const char *name, int namelen)
164 for (i = 0; i < map_size; i++)
165 if (namelen == map[i].namelen &&
166 !strncasecmp(name, map[i].name, namelen)) {
167 *value = map[i].value;
180 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
182 if (srclen > dstlen - 1)
185 strncpy(dst, src, srclen);
189 /* Shorthands for safely copying into a fixed buffer. */
191 #define string_copy(dst, src) \
192 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
194 #define string_ncopy(dst, src, srclen) \
195 string_ncopy_do(dst, sizeof(dst), src, srclen)
197 #define string_copy_rev(dst, src) \
198 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
200 #define string_add(dst, from, src) \
201 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
204 chomp_string(char *name)
208 while (isspace(*name))
211 namelen = strlen(name) - 1;
212 while (namelen > 0 && isspace(name[namelen]))
219 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
222 size_t pos = bufpos ? *bufpos : 0;
225 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
231 return pos >= bufsize ? FALSE : TRUE;
234 #define string_format(buf, fmt, args...) \
235 string_nformat(buf, sizeof(buf), NULL, fmt, args)
237 #define string_format_from(buf, from, fmt, args...) \
238 string_nformat(buf, sizeof(buf), from, fmt, args)
241 string_enum_compare(const char *str1, const char *str2, int len)
245 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
247 /* Diff-Header == DIFF_HEADER */
248 for (i = 0; i < len; i++) {
249 if (toupper(str1[i]) == toupper(str2[i]))
252 if (string_enum_sep(str1[i]) &&
253 string_enum_sep(str2[i]))
256 return str1[i] - str2[i];
262 #define prefixcmp(str1, str2) \
263 strncmp(str1, str2, STRING_SIZE(str2))
266 suffixcmp(const char *str, int slen, const char *suffix)
268 size_t len = slen >= 0 ? slen : strlen(str);
269 size_t suffixlen = strlen(suffix);
271 return suffixlen < len ? strcmp(str + len - suffixlen, suffix) : -1;
276 argv_from_string(const char *argv[SIZEOF_ARG], int *argc, char *cmd)
280 while (*cmd && *argc < SIZEOF_ARG && (valuelen = strcspn(cmd, " \t"))) {
281 bool advance = cmd[valuelen] != 0;
284 argv[(*argc)++] = chomp_string(cmd);
285 cmd += valuelen + advance;
288 if (*argc < SIZEOF_ARG)
290 return *argc < SIZEOF_ARG;
294 argv_from_env(const char **argv, const char *name)
296 char *env = argv ? getenv(name) : NULL;
301 if (env && !argv_from_string(argv, &argc, env))
302 die("Too many arguments in the `%s` environment variable", name);
307 * Executing external commands.
311 IO_FD, /* File descriptor based IO. */
312 IO_BG, /* Execute command in the background. */
313 IO_FG, /* Execute command with same std{in,out,err}. */
314 IO_RD, /* Read only fork+exec IO. */
315 IO_WR, /* Write only fork+exec IO. */
316 IO_AP, /* Append fork+exec output to file. */
320 enum io_type type; /* The requested type of pipe. */
321 const char *dir; /* Directory from which to execute. */
322 pid_t pid; /* Pipe for reading or writing. */
323 int pipe; /* Pipe end for reading or writing. */
324 int error; /* Error status. */
325 const char *argv[SIZEOF_ARG]; /* Shell command arguments. */
326 char *buf; /* Read buffer. */
327 size_t bufalloc; /* Allocated buffer size. */
328 size_t bufsize; /* Buffer content size. */
329 char *bufpos; /* Current buffer position. */
330 unsigned int eof:1; /* Has end of file been reached. */
334 reset_io(struct io *io)
338 io->buf = io->bufpos = NULL;
339 io->bufalloc = io->bufsize = 0;
345 init_io(struct io *io, const char *dir, enum io_type type)
353 init_io_rd(struct io *io, const char *argv[], const char *dir,
354 enum format_flags flags)
356 init_io(io, dir, IO_RD);
357 return format_argv(io->argv, argv, flags);
361 io_open(struct io *io, const char *name)
363 init_io(io, NULL, IO_FD);
364 io->pipe = *name ? open(name, O_RDONLY) : STDIN_FILENO;
365 return io->pipe != -1;
369 kill_io(struct io *io)
371 return io->pid == 0 || kill(io->pid, SIGKILL) != -1;
375 done_io(struct io *io)
386 pid_t waiting = waitpid(pid, &status, 0);
391 report("waitpid failed (%s)", strerror(errno));
395 return waiting == pid &&
396 !WIFSIGNALED(status) &&
398 !WEXITSTATUS(status);
405 start_io(struct io *io)
407 int pipefds[2] = { -1, -1 };
409 if (io->type == IO_FD)
412 if ((io->type == IO_RD || io->type == IO_WR) &&
415 else if (io->type == IO_AP)
416 pipefds[1] = io->pipe;
418 if ((io->pid = fork())) {
419 if (pipefds[!(io->type == IO_WR)] != -1)
420 close(pipefds[!(io->type == IO_WR)]);
422 io->pipe = pipefds[!!(io->type == IO_WR)];
427 if (io->type != IO_FG) {
428 int devnull = open("/dev/null", O_RDWR);
429 int readfd = io->type == IO_WR ? pipefds[0] : devnull;
430 int writefd = (io->type == IO_RD || io->type == IO_AP)
431 ? pipefds[1] : devnull;
433 dup2(readfd, STDIN_FILENO);
434 dup2(writefd, STDOUT_FILENO);
435 dup2(devnull, STDERR_FILENO);
438 if (pipefds[0] != -1)
440 if (pipefds[1] != -1)
444 if (io->dir && *io->dir && chdir(io->dir) == -1)
445 die("Failed to change directory: %s", strerror(errno));
447 execvp(io->argv[0], (char *const*) io->argv);
448 die("Failed to execute program: %s", strerror(errno));
451 if (pipefds[!!(io->type == IO_WR)] != -1)
452 close(pipefds[!!(io->type == IO_WR)]);
457 run_io(struct io *io, const char **argv, const char *dir, enum io_type type)
459 init_io(io, dir, type);
460 if (!format_argv(io->argv, argv, FORMAT_NONE))
466 run_io_do(struct io *io)
468 return start_io(io) && done_io(io);
472 run_io_bg(const char **argv)
476 init_io(&io, NULL, IO_BG);
477 if (!format_argv(io.argv, argv, FORMAT_NONE))
479 return run_io_do(&io);
483 run_io_fg(const char **argv, const char *dir)
487 init_io(&io, dir, IO_FG);
488 if (!format_argv(io.argv, argv, FORMAT_NONE))
490 return run_io_do(&io);
494 run_io_append(const char **argv, enum format_flags flags, int fd)
498 init_io(&io, NULL, IO_AP);
500 if (format_argv(io.argv, argv, flags))
501 return run_io_do(&io);
507 run_io_rd(struct io *io, const char **argv, enum format_flags flags)
509 return init_io_rd(io, argv, NULL, flags) && start_io(io);
513 io_eof(struct io *io)
519 io_error(struct io *io)
525 io_strerror(struct io *io)
527 return strerror(io->error);
531 io_can_read(struct io *io)
533 struct timeval tv = { 0, 500 };
537 FD_SET(io->pipe, &fds);
539 return select(io->pipe + 1, &fds, NULL, NULL, &tv) > 0;
543 io_read(struct io *io, void *buf, size_t bufsize)
546 ssize_t readsize = read(io->pipe, buf, bufsize);
548 if (readsize < 0 && (errno == EAGAIN || errno == EINTR))
550 else if (readsize == -1)
552 else if (readsize == 0)
559 io_get(struct io *io, int c, bool can_read)
565 io->buf = io->bufpos = malloc(BUFSIZ);
568 io->bufalloc = BUFSIZ;
573 if (io->bufsize > 0) {
574 eol = memchr(io->bufpos, c, io->bufsize);
576 char *line = io->bufpos;
579 io->bufpos = eol + 1;
580 io->bufsize -= io->bufpos - line;
587 io->bufpos[io->bufsize] = 0;
597 if (io->bufsize > 0 && io->bufpos > io->buf)
598 memmove(io->buf, io->bufpos, io->bufsize);
600 io->bufpos = io->buf;
601 readsize = io_read(io, io->buf + io->bufsize, io->bufalloc - io->bufsize);
604 io->bufsize += readsize;
609 io_write(struct io *io, const void *buf, size_t bufsize)
613 while (!io_error(io) && written < bufsize) {
616 size = write(io->pipe, buf + written, bufsize - written);
617 if (size < 0 && (errno == EAGAIN || errno == EINTR))
625 return written == bufsize;
629 run_io_buf(const char **argv, char buf[], size_t bufsize)
634 if (!run_io_rd(&io, argv, FORMAT_NONE))
637 io.buf = io.bufpos = buf;
638 io.bufalloc = bufsize;
639 error = !io_get(&io, '\n', TRUE) && io_error(&io);
642 return done_io(&io) || error;
645 static int read_properties(struct io *io, const char *separators, int (*read)(char *, size_t, char *, size_t));
652 /* XXX: Keep the view request first and in sync with views[]. */ \
653 REQ_GROUP("View switching") \
654 REQ_(VIEW_MAIN, "Show main view"), \
655 REQ_(VIEW_DIFF, "Show diff view"), \
656 REQ_(VIEW_LOG, "Show log view"), \
657 REQ_(VIEW_TREE, "Show tree view"), \
658 REQ_(VIEW_BLOB, "Show blob view"), \
659 REQ_(VIEW_BLAME, "Show blame view"), \
660 REQ_(VIEW_HELP, "Show help page"), \
661 REQ_(VIEW_PAGER, "Show pager view"), \
662 REQ_(VIEW_STATUS, "Show status view"), \
663 REQ_(VIEW_STAGE, "Show stage view"), \
665 REQ_GROUP("View manipulation") \
666 REQ_(ENTER, "Enter current line and scroll"), \
667 REQ_(NEXT, "Move to next"), \
668 REQ_(PREVIOUS, "Move to previous"), \
669 REQ_(VIEW_NEXT, "Move focus to next view"), \
670 REQ_(REFRESH, "Reload and refresh"), \
671 REQ_(MAXIMIZE, "Maximize the current view"), \
672 REQ_(VIEW_CLOSE, "Close the current view"), \
673 REQ_(QUIT, "Close all views and quit"), \
675 REQ_GROUP("View specific requests") \
676 REQ_(STATUS_UPDATE, "Update file status"), \
677 REQ_(STATUS_REVERT, "Revert file changes"), \
678 REQ_(STATUS_MERGE, "Merge file using external tool"), \
679 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
680 REQ_(TREE_PARENT, "Switch to parent directory in tree view"), \
682 REQ_GROUP("Cursor navigation") \
683 REQ_(MOVE_UP, "Move cursor one line up"), \
684 REQ_(MOVE_DOWN, "Move cursor one line down"), \
685 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
686 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
687 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
688 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
690 REQ_GROUP("Scrolling") \
691 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
692 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
693 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
694 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
696 REQ_GROUP("Searching") \
697 REQ_(SEARCH, "Search the view"), \
698 REQ_(SEARCH_BACK, "Search backwards in the view"), \
699 REQ_(FIND_NEXT, "Find next search match"), \
700 REQ_(FIND_PREV, "Find previous search match"), \
702 REQ_GROUP("Option manipulation") \
703 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
704 REQ_(TOGGLE_DATE, "Toggle date display"), \
705 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
706 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
707 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
710 REQ_(PROMPT, "Bring up the prompt"), \
711 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
712 REQ_(SHOW_VERSION, "Show version information"), \
713 REQ_(STOP_LOADING, "Stop all loading views"), \
714 REQ_(EDIT, "Open in editor"), \
715 REQ_(NONE, "Do nothing")
718 /* User action requests. */
720 #define REQ_GROUP(help)
721 #define REQ_(req, help) REQ_##req
723 /* Offset all requests to avoid conflicts with ncurses getch values. */
724 REQ_OFFSET = KEY_MAX + 1,
731 struct request_info {
732 enum request request;
738 static struct request_info req_info[] = {
739 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
740 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
747 get_request(const char *name)
749 int namelen = strlen(name);
752 for (i = 0; i < ARRAY_SIZE(req_info); i++)
753 if (req_info[i].namelen == namelen &&
754 !string_enum_compare(req_info[i].name, name, namelen))
755 return req_info[i].request;
765 static const char usage[] =
766 "tig " TIG_VERSION " (" __DATE__ ")\n"
768 "Usage: tig [options] [revs] [--] [paths]\n"
769 " or: tig show [options] [revs] [--] [paths]\n"
770 " or: tig blame [rev] path\n"
772 " or: tig < [git command output]\n"
775 " -v, --version Show version and exit\n"
776 " -h, --help Show help message and exit";
778 /* Option and state variables. */
779 static bool opt_date = TRUE;
780 static bool opt_author = TRUE;
781 static bool opt_line_number = FALSE;
782 static bool opt_line_graphics = TRUE;
783 static bool opt_rev_graph = FALSE;
784 static bool opt_show_refs = TRUE;
785 static int opt_num_interval = NUMBER_INTERVAL;
786 static int opt_tab_size = TAB_SIZE;
787 static int opt_author_cols = AUTHOR_COLS-1;
788 static char opt_path[SIZEOF_STR] = "";
789 static char opt_file[SIZEOF_STR] = "";
790 static char opt_ref[SIZEOF_REF] = "";
791 static char opt_head[SIZEOF_REF] = "";
792 static char opt_head_rev[SIZEOF_REV] = "";
793 static char opt_remote[SIZEOF_REF] = "";
794 static char opt_encoding[20] = "UTF-8";
795 static bool opt_utf8 = TRUE;
796 static char opt_codeset[20] = "UTF-8";
797 static iconv_t opt_iconv = ICONV_NONE;
798 static char opt_search[SIZEOF_STR] = "";
799 static char opt_cdup[SIZEOF_STR] = "";
800 static char opt_git_dir[SIZEOF_STR] = "";
801 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
802 static char opt_editor[SIZEOF_STR] = "";
803 static FILE *opt_tty = NULL;
805 #define is_initial_commit() (!*opt_head_rev)
806 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || !strcmp(opt_head_rev, (rev)))
809 parse_options(int argc, const char *argv[], const char ***run_argv)
811 enum request request = REQ_VIEW_MAIN;
812 const char *subcommand;
813 bool seen_dashdash = FALSE;
814 /* XXX: This is vulnerable to the user overriding options
815 * required for the main view parser. */
816 static const char *custom_argv[SIZEOF_ARG] = {
817 "git", "log", "--no-color", "--pretty=raw", "--parents",
822 if (!isatty(STDIN_FILENO))
823 return REQ_VIEW_PAGER;
826 return REQ_VIEW_MAIN;
828 subcommand = argv[1];
829 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
830 if (!strcmp(subcommand, "-S"))
831 warn("`-S' has been deprecated; use `tig status' instead");
833 warn("ignoring arguments after `%s'", subcommand);
834 return REQ_VIEW_STATUS;
836 } else if (!strcmp(subcommand, "blame")) {
837 if (argc <= 2 || argc > 4)
838 die("invalid number of options to blame\n\n%s", usage);
842 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
846 string_ncopy(opt_file, argv[i], strlen(argv[i]));
847 return REQ_VIEW_BLAME;
849 } else if (!strcmp(subcommand, "show")) {
850 request = REQ_VIEW_DIFF;
852 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
853 request = subcommand[0] == 'l' ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
854 warn("`tig %s' has been deprecated", subcommand);
861 custom_argv[1] = subcommand;
865 for (i = 1 + !!subcommand; i < argc; i++) {
866 const char *opt = argv[i];
868 if (seen_dashdash || !strcmp(opt, "--")) {
869 seen_dashdash = TRUE;
871 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
872 printf("tig version %s\n", TIG_VERSION);
875 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
876 printf("%s\n", usage);
880 custom_argv[j++] = opt;
881 if (j >= ARRAY_SIZE(custom_argv))
882 die("command too long");
885 custom_argv[j] = NULL;
886 *run_argv = custom_argv;
893 * Line-oriented content detection.
897 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
898 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
899 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
900 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
901 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
902 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
903 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
904 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
905 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
906 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
907 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
908 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
909 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
910 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
911 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
912 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
913 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
914 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
915 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
916 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
917 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
918 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
919 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
920 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
921 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
922 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
923 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
924 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
925 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
926 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
927 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
928 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
929 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
930 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
931 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
932 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
933 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
934 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
935 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
936 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
937 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
938 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
939 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
940 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
941 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
942 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
943 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
944 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
945 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
946 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
947 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
948 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
949 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
950 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
953 #define LINE(type, line, fg, bg, attr) \
961 const char *name; /* Option name. */
962 int namelen; /* Size of option name. */
963 const char *line; /* The start of line to match. */
964 int linelen; /* Size of string to match. */
965 int fg, bg, attr; /* Color and text attributes for the lines. */
968 static struct line_info line_info[] = {
969 #define LINE(type, line, fg, bg, attr) \
970 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
975 static enum line_type
976 get_line_type(const char *line)
978 int linelen = strlen(line);
981 for (type = 0; type < ARRAY_SIZE(line_info); type++)
982 /* Case insensitive search matches Signed-off-by lines better. */
983 if (linelen >= line_info[type].linelen &&
984 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
991 get_line_attr(enum line_type type)
993 assert(type < ARRAY_SIZE(line_info));
994 return COLOR_PAIR(type) | line_info[type].attr;
997 static struct line_info *
998 get_line_info(const char *name)
1000 size_t namelen = strlen(name);
1001 enum line_type type;
1003 for (type = 0; type < ARRAY_SIZE(line_info); type++)
1004 if (namelen == line_info[type].namelen &&
1005 !string_enum_compare(line_info[type].name, name, namelen))
1006 return &line_info[type];
1014 int default_bg = line_info[LINE_DEFAULT].bg;
1015 int default_fg = line_info[LINE_DEFAULT].fg;
1016 enum line_type type;
1020 if (assume_default_colors(default_fg, default_bg) == ERR) {
1021 default_bg = COLOR_BLACK;
1022 default_fg = COLOR_WHITE;
1025 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
1026 struct line_info *info = &line_info[type];
1027 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
1028 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
1030 init_pair(type, fg, bg);
1035 enum line_type type;
1038 unsigned int selected:1;
1039 unsigned int dirty:1;
1040 unsigned int cleareol:1;
1042 void *data; /* User data */
1052 enum request request;
1055 static struct keybinding default_keybindings[] = {
1056 /* View switching */
1057 { 'm', REQ_VIEW_MAIN },
1058 { 'd', REQ_VIEW_DIFF },
1059 { 'l', REQ_VIEW_LOG },
1060 { 't', REQ_VIEW_TREE },
1061 { 'f', REQ_VIEW_BLOB },
1062 { 'B', REQ_VIEW_BLAME },
1063 { 'p', REQ_VIEW_PAGER },
1064 { 'h', REQ_VIEW_HELP },
1065 { 'S', REQ_VIEW_STATUS },
1066 { 'c', REQ_VIEW_STAGE },
1068 /* View manipulation */
1069 { 'q', REQ_VIEW_CLOSE },
1070 { KEY_TAB, REQ_VIEW_NEXT },
1071 { KEY_RETURN, REQ_ENTER },
1072 { KEY_UP, REQ_PREVIOUS },
1073 { KEY_DOWN, REQ_NEXT },
1074 { 'R', REQ_REFRESH },
1075 { KEY_F(5), REQ_REFRESH },
1076 { 'O', REQ_MAXIMIZE },
1078 /* Cursor navigation */
1079 { 'k', REQ_MOVE_UP },
1080 { 'j', REQ_MOVE_DOWN },
1081 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1082 { KEY_END, REQ_MOVE_LAST_LINE },
1083 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1084 { ' ', REQ_MOVE_PAGE_DOWN },
1085 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1086 { 'b', REQ_MOVE_PAGE_UP },
1087 { '-', REQ_MOVE_PAGE_UP },
1090 { KEY_IC, REQ_SCROLL_LINE_UP },
1091 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1092 { 'w', REQ_SCROLL_PAGE_UP },
1093 { 's', REQ_SCROLL_PAGE_DOWN },
1096 { '/', REQ_SEARCH },
1097 { '?', REQ_SEARCH_BACK },
1098 { 'n', REQ_FIND_NEXT },
1099 { 'N', REQ_FIND_PREV },
1103 { 'z', REQ_STOP_LOADING },
1104 { 'v', REQ_SHOW_VERSION },
1105 { 'r', REQ_SCREEN_REDRAW },
1106 { '.', REQ_TOGGLE_LINENO },
1107 { 'D', REQ_TOGGLE_DATE },
1108 { 'A', REQ_TOGGLE_AUTHOR },
1109 { 'g', REQ_TOGGLE_REV_GRAPH },
1110 { 'F', REQ_TOGGLE_REFS },
1111 { ':', REQ_PROMPT },
1112 { 'u', REQ_STATUS_UPDATE },
1113 { '!', REQ_STATUS_REVERT },
1114 { 'M', REQ_STATUS_MERGE },
1115 { '@', REQ_STAGE_NEXT },
1116 { ',', REQ_TREE_PARENT },
1120 #define KEYMAP_INFO \
1134 #define KEYMAP_(name) KEYMAP_##name
1139 static struct int_map keymap_table[] = {
1140 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
1145 #define set_keymap(map, name) \
1146 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
1148 struct keybinding_table {
1149 struct keybinding *data;
1153 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1156 add_keybinding(enum keymap keymap, enum request request, int key)
1158 struct keybinding_table *table = &keybindings[keymap];
1160 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1162 die("Failed to allocate keybinding");
1163 table->data[table->size].alias = key;
1164 table->data[table->size++].request = request;
1167 /* Looks for a key binding first in the given map, then in the generic map, and
1168 * lastly in the default keybindings. */
1170 get_keybinding(enum keymap keymap, int key)
1174 for (i = 0; i < keybindings[keymap].size; i++)
1175 if (keybindings[keymap].data[i].alias == key)
1176 return keybindings[keymap].data[i].request;
1178 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1179 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1180 return keybindings[KEYMAP_GENERIC].data[i].request;
1182 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1183 if (default_keybindings[i].alias == key)
1184 return default_keybindings[i].request;
1186 return (enum request) key;
1195 static struct key key_table[] = {
1196 { "Enter", KEY_RETURN },
1198 { "Backspace", KEY_BACKSPACE },
1200 { "Escape", KEY_ESC },
1201 { "Left", KEY_LEFT },
1202 { "Right", KEY_RIGHT },
1204 { "Down", KEY_DOWN },
1205 { "Insert", KEY_IC },
1206 { "Delete", KEY_DC },
1208 { "Home", KEY_HOME },
1210 { "PageUp", KEY_PPAGE },
1211 { "PageDown", KEY_NPAGE },
1221 { "F10", KEY_F(10) },
1222 { "F11", KEY_F(11) },
1223 { "F12", KEY_F(12) },
1227 get_key_value(const char *name)
1231 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1232 if (!strcasecmp(key_table[i].name, name))
1233 return key_table[i].value;
1235 if (strlen(name) == 1 && isprint(*name))
1242 get_key_name(int key_value)
1244 static char key_char[] = "'X'";
1245 const char *seq = NULL;
1248 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1249 if (key_table[key].value == key_value)
1250 seq = key_table[key].name;
1254 isprint(key_value)) {
1255 key_char[1] = (char) key_value;
1259 return seq ? seq : "(no key)";
1263 get_key(enum request request)
1265 static char buf[BUFSIZ];
1272 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1273 struct keybinding *keybinding = &default_keybindings[i];
1275 if (keybinding->request != request)
1278 if (!string_format_from(buf, &pos, "%s%s", sep,
1279 get_key_name(keybinding->alias)))
1280 return "Too many keybindings!";
1287 struct run_request {
1290 const char *argv[SIZEOF_ARG];
1293 static struct run_request *run_request;
1294 static size_t run_requests;
1297 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1299 struct run_request *req;
1301 if (argc >= ARRAY_SIZE(req->argv) - 1)
1304 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1309 req = &run_request[run_requests];
1310 req->keymap = keymap;
1312 req->argv[0] = NULL;
1314 if (!format_argv(req->argv, argv, FORMAT_NONE))
1317 return REQ_NONE + ++run_requests;
1320 static struct run_request *
1321 get_run_request(enum request request)
1323 if (request <= REQ_NONE)
1325 return &run_request[request - REQ_NONE - 1];
1329 add_builtin_run_requests(void)
1331 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1332 const char *gc[] = { "git", "gc", NULL };
1339 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1340 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1344 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1347 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1348 if (req != REQ_NONE)
1349 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1354 * User config file handling.
1357 static struct int_map color_map[] = {
1358 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1370 #define set_color(color, name) \
1371 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1373 static struct int_map attr_map[] = {
1374 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1381 ATTR_MAP(UNDERLINE),
1384 #define set_attribute(attr, name) \
1385 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1387 static int config_lineno;
1388 static bool config_errors;
1389 static const char *config_msg;
1391 /* Wants: object fgcolor bgcolor [attr] */
1393 option_color_command(int argc, const char *argv[])
1395 struct line_info *info;
1397 if (argc != 3 && argc != 4) {
1398 config_msg = "Wrong number of arguments given to color command";
1402 info = get_line_info(argv[0]);
1404 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1405 info = get_line_info("delimiter");
1407 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1408 info = get_line_info("date");
1411 config_msg = "Unknown color name";
1416 if (set_color(&info->fg, argv[1]) == ERR ||
1417 set_color(&info->bg, argv[2]) == ERR) {
1418 config_msg = "Unknown color";
1422 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1423 config_msg = "Unknown attribute";
1430 static bool parse_bool(const char *s)
1432 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1433 !strcmp(s, "yes")) ? TRUE : FALSE;
1437 parse_int(const char *s, int default_value, int min, int max)
1439 int value = atoi(s);
1441 return (value < min || value > max) ? default_value : value;
1444 /* Wants: name = value */
1446 option_set_command(int argc, const char *argv[])
1449 config_msg = "Wrong number of arguments given to set command";
1453 if (strcmp(argv[1], "=")) {
1454 config_msg = "No value assigned";
1458 if (!strcmp(argv[0], "show-author")) {
1459 opt_author = parse_bool(argv[2]);
1463 if (!strcmp(argv[0], "show-date")) {
1464 opt_date = parse_bool(argv[2]);
1468 if (!strcmp(argv[0], "show-rev-graph")) {
1469 opt_rev_graph = parse_bool(argv[2]);
1473 if (!strcmp(argv[0], "show-refs")) {
1474 opt_show_refs = parse_bool(argv[2]);
1478 if (!strcmp(argv[0], "show-line-numbers")) {
1479 opt_line_number = parse_bool(argv[2]);
1483 if (!strcmp(argv[0], "line-graphics")) {
1484 opt_line_graphics = parse_bool(argv[2]);
1488 if (!strcmp(argv[0], "line-number-interval")) {
1489 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1493 if (!strcmp(argv[0], "author-width")) {
1494 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1498 if (!strcmp(argv[0], "tab-size")) {
1499 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1503 if (!strcmp(argv[0], "commit-encoding")) {
1504 const char *arg = argv[2];
1505 int arglen = strlen(arg);
1510 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1511 config_msg = "Unmatched quotation";
1514 arg += 1; arglen -= 2;
1516 string_ncopy(opt_encoding, arg, strlen(arg));
1521 config_msg = "Unknown variable name";
1525 /* Wants: mode request key */
1527 option_bind_command(int argc, const char *argv[])
1529 enum request request;
1534 config_msg = "Wrong number of arguments given to bind command";
1538 if (set_keymap(&keymap, argv[0]) == ERR) {
1539 config_msg = "Unknown key map";
1543 key = get_key_value(argv[1]);
1545 config_msg = "Unknown key";
1549 request = get_request(argv[2]);
1550 if (request == REQ_NONE) {
1551 const char *obsolete[] = { "cherry-pick", "screen-resize" };
1552 size_t namelen = strlen(argv[2]);
1555 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1556 if (namelen == strlen(obsolete[i]) &&
1557 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1558 config_msg = "Obsolete request name";
1563 if (request == REQ_NONE && *argv[2]++ == '!')
1564 request = add_run_request(keymap, key, argc - 2, argv + 2);
1565 if (request == REQ_NONE) {
1566 config_msg = "Unknown request name";
1570 add_keybinding(keymap, request, key);
1576 set_option(const char *opt, char *value)
1578 const char *argv[SIZEOF_ARG];
1581 if (!argv_from_string(argv, &argc, value)) {
1582 config_msg = "Too many option arguments";
1586 if (!strcmp(opt, "color"))
1587 return option_color_command(argc, argv);
1589 if (!strcmp(opt, "set"))
1590 return option_set_command(argc, argv);
1592 if (!strcmp(opt, "bind"))
1593 return option_bind_command(argc, argv);
1595 config_msg = "Unknown option command";
1600 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1605 config_msg = "Internal error";
1607 /* Check for comment markers, since read_properties() will
1608 * only ensure opt and value are split at first " \t". */
1609 optlen = strcspn(opt, "#");
1613 if (opt[optlen] != 0) {
1614 config_msg = "No option value";
1618 /* Look for comment endings in the value. */
1619 size_t len = strcspn(value, "#");
1621 if (len < valuelen) {
1623 value[valuelen] = 0;
1626 status = set_option(opt, value);
1629 if (status == ERR) {
1630 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1631 config_lineno, (int) optlen, opt, config_msg);
1632 config_errors = TRUE;
1635 /* Always keep going if errors are encountered. */
1640 load_option_file(const char *path)
1644 /* It's ok that the file doesn't exist. */
1645 if (!io_open(&io, path))
1649 config_errors = FALSE;
1651 if (read_properties(&io, " \t", read_option) == ERR ||
1652 config_errors == TRUE)
1653 fprintf(stderr, "Errors while loading %s.\n", path);
1659 const char *home = getenv("HOME");
1660 const char *tigrc_user = getenv("TIGRC_USER");
1661 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1662 char buf[SIZEOF_STR];
1664 add_builtin_run_requests();
1666 if (!tigrc_system) {
1667 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1671 load_option_file(tigrc_system);
1674 if (!home || !string_format(buf, "%s/.tigrc", home))
1678 load_option_file(tigrc_user);
1691 /* The display array of active views and the index of the current view. */
1692 static struct view *display[2];
1693 static unsigned int current_view;
1695 /* Reading from the prompt? */
1696 static bool input_mode = FALSE;
1698 #define foreach_displayed_view(view, i) \
1699 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1701 #define displayed_views() (display[1] != NULL ? 2 : 1)
1703 /* Current head and commit ID */
1704 static char ref_blob[SIZEOF_REF] = "";
1705 static char ref_commit[SIZEOF_REF] = "HEAD";
1706 static char ref_head[SIZEOF_REF] = "HEAD";
1709 const char *name; /* View name */
1710 const char *cmd_env; /* Command line set via environment */
1711 const char *id; /* Points to either of ref_{head,commit,blob} */
1713 struct view_ops *ops; /* View operations */
1715 enum keymap keymap; /* What keymap does this view have */
1716 bool git_dir; /* Whether the view requires a git directory. */
1718 char ref[SIZEOF_REF]; /* Hovered commit reference */
1719 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1721 int height, width; /* The width and height of the main window */
1722 WINDOW *win; /* The main window */
1723 WINDOW *title; /* The title window living below the main window */
1726 unsigned long offset; /* Offset of the window top */
1727 unsigned long lineno; /* Current line number */
1728 unsigned long p_offset; /* Previous offset of the window top */
1729 unsigned long p_lineno; /* Previous current line number */
1730 bool p_restore; /* Should the previous position be restored. */
1733 char grep[SIZEOF_STR]; /* Search string */
1734 regex_t *regex; /* Pre-compiled regex */
1736 /* If non-NULL, points to the view that opened this view. If this view
1737 * is closed tig will switch back to the parent view. */
1738 struct view *parent;
1741 size_t lines; /* Total number of lines */
1742 struct line *line; /* Line index */
1743 size_t line_alloc; /* Total number of allocated lines */
1744 unsigned int digits; /* Number of digits in the lines member. */
1747 struct line *curline; /* Line currently being drawn. */
1748 enum line_type curtype; /* Attribute currently used for drawing. */
1749 unsigned long col; /* Column when drawing. */
1759 /* What type of content being displayed. Used in the title bar. */
1761 /* Default command arguments. */
1763 /* Open and reads in all view content. */
1764 bool (*open)(struct view *view);
1765 /* Read one line; updates view->line. */
1766 bool (*read)(struct view *view, char *data);
1767 /* Draw one line; @lineno must be < view->height. */
1768 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1769 /* Depending on view handle a special requests. */
1770 enum request (*request)(struct view *view, enum request request, struct line *line);
1771 /* Search for regex in a line. */
1772 bool (*grep)(struct view *view, struct line *line);
1774 void (*select)(struct view *view, struct line *line);
1777 static struct view_ops blame_ops;
1778 static struct view_ops blob_ops;
1779 static struct view_ops diff_ops;
1780 static struct view_ops help_ops;
1781 static struct view_ops log_ops;
1782 static struct view_ops main_ops;
1783 static struct view_ops pager_ops;
1784 static struct view_ops stage_ops;
1785 static struct view_ops status_ops;
1786 static struct view_ops tree_ops;
1788 #define VIEW_STR(name, env, ref, ops, map, git) \
1789 { name, #env, ref, ops, map, git }
1791 #define VIEW_(id, name, ops, git, ref) \
1792 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1795 static struct view views[] = {
1796 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1797 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1798 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1799 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1800 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1801 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1802 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1803 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1804 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1805 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1808 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1809 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1811 #define foreach_view(view, i) \
1812 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1814 #define view_is_displayed(view) \
1815 (view == display[0] || view == display[1])
1822 static int line_graphics[] = {
1823 /* LINE_GRAPHIC_VLINE: */ '|'
1827 set_view_attr(struct view *view, enum line_type type)
1829 if (!view->curline->selected && view->curtype != type) {
1830 wattrset(view->win, get_line_attr(type));
1831 wchgat(view->win, -1, 0, type, NULL);
1832 view->curtype = type;
1837 draw_chars(struct view *view, enum line_type type, const char *string,
1838 int max_len, bool use_tilde)
1842 int trimmed = FALSE;
1848 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1850 col = len = strlen(string);
1851 if (len > max_len) {
1855 col = len = max_len;
1860 set_view_attr(view, type);
1861 waddnstr(view->win, string, len);
1862 if (trimmed && use_tilde) {
1863 set_view_attr(view, LINE_DELIMITER);
1864 waddch(view->win, '~');
1872 draw_space(struct view *view, enum line_type type, int max, int spaces)
1874 static char space[] = " ";
1877 spaces = MIN(max, spaces);
1879 while (spaces > 0) {
1880 int len = MIN(spaces, sizeof(space) - 1);
1882 col += draw_chars(view, type, space, spaces, FALSE);
1890 draw_lineno(struct view *view, unsigned int lineno)
1893 int digits3 = view->digits < 3 ? 3 : view->digits;
1894 int max_number = MIN(digits3, STRING_SIZE(number));
1895 int max = view->width - view->col;
1898 if (max < max_number)
1901 lineno += view->offset + 1;
1902 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1903 static char fmt[] = "%1ld";
1905 if (view->digits <= 9)
1906 fmt[1] = '0' + digits3;
1908 if (!string_format(number, fmt, lineno))
1910 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1912 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1916 set_view_attr(view, LINE_DEFAULT);
1917 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1922 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1925 return view->width - view->col <= 0;
1929 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1931 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1932 return view->width - view->col <= 0;
1936 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1938 int max = view->width - view->col;
1944 set_view_attr(view, type);
1945 /* Using waddch() instead of waddnstr() ensures that
1946 * they'll be rendered correctly for the cursor line. */
1947 for (i = 0; i < size; i++)
1948 waddch(view->win, graphic[i]);
1952 waddch(view->win, ' ');
1956 return view->width - view->col <= 0;
1960 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1962 int max = MIN(view->width - view->col, len);
1966 col = draw_chars(view, type, text, max - 1, trim);
1968 col = draw_space(view, type, max - 1, max - 1);
1970 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1971 return view->width - view->col <= 0;
1975 draw_date(struct view *view, struct tm *time)
1977 char buf[DATE_COLS];
1982 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1983 date = timelen ? buf : NULL;
1985 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1989 draw_view_line(struct view *view, unsigned int lineno)
1992 bool selected = (view->offset + lineno == view->lineno);
1995 assert(view_is_displayed(view));
1997 if (view->offset + lineno >= view->lines)
2000 line = &view->line[view->offset + lineno];
2002 wmove(view->win, lineno, 0);
2004 wclrtoeol(view->win);
2006 view->curline = line;
2007 view->curtype = LINE_NONE;
2008 line->selected = FALSE;
2009 line->dirty = line->cleareol = 0;
2012 set_view_attr(view, LINE_CURSOR);
2013 line->selected = TRUE;
2014 view->ops->select(view, line);
2017 scrollok(view->win, FALSE);
2018 draw_ok = view->ops->draw(view, line, lineno);
2019 scrollok(view->win, TRUE);
2025 redraw_view_dirty(struct view *view)
2030 for (lineno = 0; lineno < view->height; lineno++) {
2031 if (view->offset + lineno >= view->lines)
2033 if (!view->line[view->offset + lineno].dirty)
2036 if (!draw_view_line(view, lineno))
2042 redrawwin(view->win);
2044 wnoutrefresh(view->win);
2046 wrefresh(view->win);
2050 redraw_view_from(struct view *view, int lineno)
2052 assert(0 <= lineno && lineno < view->height);
2054 for (; lineno < view->height; lineno++) {
2055 if (!draw_view_line(view, lineno))
2059 redrawwin(view->win);
2061 wnoutrefresh(view->win);
2063 wrefresh(view->win);
2067 redraw_view(struct view *view)
2070 redraw_view_from(view, 0);
2075 update_view_title(struct view *view)
2077 char buf[SIZEOF_STR];
2078 char state[SIZEOF_STR];
2079 size_t bufpos = 0, statelen = 0;
2081 assert(view_is_displayed(view));
2083 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2084 unsigned int view_lines = view->offset + view->height;
2085 unsigned int lines = view->lines
2086 ? MIN(view_lines, view->lines) * 100 / view->lines
2089 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2098 time_t secs = time(NULL) - view->start_time;
2100 /* Three git seconds are a long time ... */
2102 string_format_from(state, &statelen, " loading %lds", secs);
2105 string_format_from(buf, &bufpos, "[%s]", view->name);
2106 if (*view->ref && bufpos < view->width) {
2107 size_t refsize = strlen(view->ref);
2108 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2110 if (minsize < view->width)
2111 refsize = view->width - minsize + 7;
2112 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2115 if (statelen && bufpos < view->width) {
2116 string_format_from(buf, &bufpos, "%s", state);
2119 if (view == display[current_view])
2120 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2122 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2124 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2125 wclrtoeol(view->title);
2126 wmove(view->title, 0, view->width - 1);
2129 wnoutrefresh(view->title);
2131 wrefresh(view->title);
2135 resize_display(void)
2138 struct view *base = display[0];
2139 struct view *view = display[1] ? display[1] : display[0];
2141 /* Setup window dimensions */
2143 getmaxyx(stdscr, base->height, base->width);
2145 /* Make room for the status window. */
2149 /* Horizontal split. */
2150 view->width = base->width;
2151 view->height = SCALE_SPLIT_VIEW(base->height);
2152 base->height -= view->height;
2154 /* Make room for the title bar. */
2158 /* Make room for the title bar. */
2163 foreach_displayed_view (view, i) {
2165 view->win = newwin(view->height, 0, offset, 0);
2167 die("Failed to create %s view", view->name);
2169 scrollok(view->win, TRUE);
2171 view->title = newwin(1, 0, offset + view->height, 0);
2173 die("Failed to create title window");
2176 wresize(view->win, view->height, view->width);
2177 mvwin(view->win, offset, 0);
2178 mvwin(view->title, offset + view->height, 0);
2181 offset += view->height + 1;
2186 redraw_display(bool clear)
2191 foreach_displayed_view (view, i) {
2195 update_view_title(view);
2200 update_display_cursor(struct view *view)
2202 /* Move the cursor to the right-most column of the cursor line.
2204 * XXX: This could turn out to be a bit expensive, but it ensures that
2205 * the cursor does not jump around. */
2207 wmove(view->win, view->lineno - view->offset, view->width - 1);
2208 wrefresh(view->win);
2213 toggle_view_option(bool *option, const char *help)
2216 redraw_display(FALSE);
2217 report("%sabling %s", *option ? "En" : "Dis", help);
2224 /* Scrolling backend */
2226 do_scroll_view(struct view *view, int lines)
2228 bool redraw_current_line = FALSE;
2230 /* The rendering expects the new offset. */
2231 view->offset += lines;
2233 assert(0 <= view->offset && view->offset < view->lines);
2236 /* Move current line into the view. */
2237 if (view->lineno < view->offset) {
2238 view->lineno = view->offset;
2239 redraw_current_line = TRUE;
2240 } else if (view->lineno >= view->offset + view->height) {
2241 view->lineno = view->offset + view->height - 1;
2242 redraw_current_line = TRUE;
2245 assert(view->offset <= view->lineno && view->lineno < view->lines);
2247 /* Redraw the whole screen if scrolling is pointless. */
2248 if (view->height < ABS(lines)) {
2252 int line = lines > 0 ? view->height - lines : 0;
2253 int end = line + ABS(lines);
2255 wscrl(view->win, lines);
2257 for (; line < end; line++) {
2258 if (!draw_view_line(view, line))
2262 if (redraw_current_line)
2263 draw_view_line(view, view->lineno - view->offset);
2266 redrawwin(view->win);
2267 wrefresh(view->win);
2271 /* Scroll frontend */
2273 scroll_view(struct view *view, enum request request)
2277 assert(view_is_displayed(view));
2280 case REQ_SCROLL_PAGE_DOWN:
2281 lines = view->height;
2282 case REQ_SCROLL_LINE_DOWN:
2283 if (view->offset + lines > view->lines)
2284 lines = view->lines - view->offset;
2286 if (lines == 0 || view->offset + view->height >= view->lines) {
2287 report("Cannot scroll beyond the last line");
2292 case REQ_SCROLL_PAGE_UP:
2293 lines = view->height;
2294 case REQ_SCROLL_LINE_UP:
2295 if (lines > view->offset)
2296 lines = view->offset;
2299 report("Cannot scroll beyond the first line");
2307 die("request %d not handled in switch", request);
2310 do_scroll_view(view, lines);
2315 move_view(struct view *view, enum request request)
2317 int scroll_steps = 0;
2321 case REQ_MOVE_FIRST_LINE:
2322 steps = -view->lineno;
2325 case REQ_MOVE_LAST_LINE:
2326 steps = view->lines - view->lineno - 1;
2329 case REQ_MOVE_PAGE_UP:
2330 steps = view->height > view->lineno
2331 ? -view->lineno : -view->height;
2334 case REQ_MOVE_PAGE_DOWN:
2335 steps = view->lineno + view->height >= view->lines
2336 ? view->lines - view->lineno - 1 : view->height;
2348 die("request %d not handled in switch", request);
2351 if (steps <= 0 && view->lineno == 0) {
2352 report("Cannot move beyond the first line");
2355 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2356 report("Cannot move beyond the last line");
2360 /* Move the current line */
2361 view->lineno += steps;
2362 assert(0 <= view->lineno && view->lineno < view->lines);
2364 /* Check whether the view needs to be scrolled */
2365 if (view->lineno < view->offset ||
2366 view->lineno >= view->offset + view->height) {
2367 scroll_steps = steps;
2368 if (steps < 0 && -steps > view->offset) {
2369 scroll_steps = -view->offset;
2371 } else if (steps > 0) {
2372 if (view->lineno == view->lines - 1 &&
2373 view->lines > view->height) {
2374 scroll_steps = view->lines - view->offset - 1;
2375 if (scroll_steps >= view->height)
2376 scroll_steps -= view->height - 1;
2381 if (!view_is_displayed(view)) {
2382 view->offset += scroll_steps;
2383 assert(0 <= view->offset && view->offset < view->lines);
2384 view->ops->select(view, &view->line[view->lineno]);
2388 /* Repaint the old "current" line if we be scrolling */
2389 if (ABS(steps) < view->height)
2390 draw_view_line(view, view->lineno - steps - view->offset);
2393 do_scroll_view(view, scroll_steps);
2397 /* Draw the current line */
2398 draw_view_line(view, view->lineno - view->offset);
2400 redrawwin(view->win);
2401 wrefresh(view->win);
2410 static void search_view(struct view *view, enum request request);
2413 select_view_line(struct view *view, unsigned long lineno)
2415 if (lineno - view->offset >= view->height) {
2416 view->offset = lineno;
2417 view->lineno = lineno;
2418 if (view_is_displayed(view))
2422 unsigned long old_lineno = view->lineno - view->offset;
2424 view->lineno = lineno;
2425 if (view_is_displayed(view)) {
2426 draw_view_line(view, old_lineno);
2427 draw_view_line(view, view->lineno - view->offset);
2428 redrawwin(view->win);
2429 wrefresh(view->win);
2431 view->ops->select(view, &view->line[view->lineno]);
2437 find_next(struct view *view, enum request request)
2439 unsigned long lineno = view->lineno;
2444 report("No previous search");
2446 search_view(view, request);
2456 case REQ_SEARCH_BACK:
2465 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2466 lineno += direction;
2468 /* Note, lineno is unsigned long so will wrap around in which case it
2469 * will become bigger than view->lines. */
2470 for (; lineno < view->lines; lineno += direction) {
2471 if (view->ops->grep(view, &view->line[lineno])) {
2472 select_view_line(view, lineno);
2473 report("Line %ld matches '%s'", lineno + 1, view->grep);
2478 report("No match found for '%s'", view->grep);
2482 search_view(struct view *view, enum request request)
2487 regfree(view->regex);
2490 view->regex = calloc(1, sizeof(*view->regex));
2495 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2496 if (regex_err != 0) {
2497 char buf[SIZEOF_STR] = "unknown error";
2499 regerror(regex_err, view->regex, buf, sizeof(buf));
2500 report("Search failed: %s", buf);
2504 string_copy(view->grep, opt_search);
2506 find_next(view, request);
2510 * Incremental updating
2514 reset_view(struct view *view)
2518 for (i = 0; i < view->lines; i++)
2519 free(view->line[i].data);
2522 view->p_offset = view->offset;
2523 view->p_lineno = view->lineno;
2529 view->line_alloc = 0;
2531 view->update_secs = 0;
2535 free_argv(const char *argv[])
2539 for (argc = 0; argv[argc]; argc++)
2540 free((void *) argv[argc]);
2544 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2546 char buf[SIZEOF_STR];
2548 bool noreplace = flags == FORMAT_NONE;
2550 free_argv(dst_argv);
2552 for (argc = 0; src_argv[argc]; argc++) {
2553 const char *arg = src_argv[argc];
2557 char *next = strstr(arg, "%(");
2558 int len = next - arg;
2561 if (!next || noreplace) {
2562 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2567 } else if (!prefixcmp(next, "%(directory)")) {
2570 } else if (!prefixcmp(next, "%(file)")) {
2573 } else if (!prefixcmp(next, "%(ref)")) {
2574 value = *opt_ref ? opt_ref : "HEAD";
2576 } else if (!prefixcmp(next, "%(head)")) {
2579 } else if (!prefixcmp(next, "%(commit)")) {
2582 } else if (!prefixcmp(next, "%(blob)")) {
2586 report("Unknown replacement: `%s`", next);
2590 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2593 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2596 dst_argv[argc] = strdup(buf);
2597 if (!dst_argv[argc])
2601 dst_argv[argc] = NULL;
2603 return src_argv[argc] == NULL;
2607 restore_view_position(struct view *view)
2609 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2612 /* Changing the view position cancels the restoring. */
2613 /* FIXME: Changing back to the first line is not detected. */
2614 if (view->offset != 0 || view->lineno != 0) {
2615 view->p_restore = FALSE;
2619 if (view->p_lineno >= view->lines) {
2620 view->p_lineno = view->lines > 0 ? view->lines - 1 : 0;
2621 if (view->p_offset >= view->p_lineno) {
2622 unsigned long half = view->height / 2;
2624 if (view->p_lineno > half)
2625 view->p_offset = view->p_lineno - half;
2631 if (view_is_displayed(view) &&
2632 view->offset != view->p_offset &&
2633 view->lineno != view->p_lineno)
2636 view->offset = view->p_offset;
2637 view->lineno = view->p_lineno;
2638 view->p_restore = FALSE;
2644 end_update(struct view *view, bool force)
2648 while (!view->ops->read(view, NULL))
2651 set_nonblocking_input(FALSE);
2653 kill_io(view->pipe);
2654 done_io(view->pipe);
2659 setup_update(struct view *view, const char *vid)
2661 set_nonblocking_input(TRUE);
2663 string_copy_rev(view->vid, vid);
2664 view->pipe = &view->io;
2665 view->start_time = time(NULL);
2669 prepare_update(struct view *view, const char *argv[], const char *dir,
2670 enum format_flags flags)
2673 end_update(view, TRUE);
2674 return init_io_rd(&view->io, argv, dir, flags);
2678 prepare_update_file(struct view *view, const char *name)
2681 end_update(view, TRUE);
2682 return io_open(&view->io, name);
2686 begin_update(struct view *view, bool refresh)
2689 end_update(view, TRUE);
2692 if (!start_io(&view->io))
2696 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2699 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2702 /* Put the current ref_* value to the view title ref
2703 * member. This is needed by the blob view. Most other
2704 * views sets it automatically after loading because the
2705 * first line is a commit line. */
2706 string_copy_rev(view->ref, view->id);
2709 setup_update(view, view->id);
2714 #define ITEM_CHUNK_SIZE 256
2716 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2718 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2719 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2721 if (mem == NULL || num_chunks != num_chunks_new) {
2722 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2723 mem = realloc(mem, *size * item_size);
2729 static struct line *
2730 realloc_lines(struct view *view, size_t line_size)
2732 size_t alloc = view->line_alloc;
2733 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2734 sizeof(*view->line));
2740 view->line_alloc = alloc;
2745 update_view(struct view *view)
2747 char out_buffer[BUFSIZ * 2];
2749 /* Clear the view and redraw everything since the tree sorting
2750 * might have rearranged things. */
2751 bool redraw = view->lines == 0;
2752 bool can_read = TRUE;
2757 if (!io_can_read(view->pipe)) {
2758 if (view->lines == 0) {
2759 time_t secs = time(NULL) - view->start_time;
2761 if (secs > view->update_secs) {
2762 if (view->update_secs == 0)
2764 update_view_title(view);
2765 view->update_secs = secs;
2771 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2772 if (opt_iconv != ICONV_NONE) {
2773 ICONV_CONST char *inbuf = line;
2774 size_t inlen = strlen(line) + 1;
2776 char *outbuf = out_buffer;
2777 size_t outlen = sizeof(out_buffer);
2781 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2782 if (ret != (size_t) -1)
2786 if (!view->ops->read(view, line)) {
2787 report("Allocation failure");
2788 end_update(view, TRUE);
2794 unsigned long lines = view->lines;
2797 for (digits = 0; lines; digits++)
2800 /* Keep the displayed view in sync with line number scaling. */
2801 if (digits != view->digits) {
2802 view->digits = digits;
2803 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2808 if (io_error(view->pipe)) {
2809 report("Failed to read: %s", io_strerror(view->pipe));
2810 end_update(view, TRUE);
2812 } else if (io_eof(view->pipe)) {
2814 end_update(view, FALSE);
2817 if (restore_view_position(view))
2820 if (!view_is_displayed(view))
2824 redraw_view_from(view, 0);
2826 redraw_view_dirty(view);
2828 /* Update the title _after_ the redraw so that if the redraw picks up a
2829 * commit reference in view->ref it'll be available here. */
2830 update_view_title(view);
2834 static struct line *
2835 add_line_data(struct view *view, void *data, enum line_type type)
2839 if (!realloc_lines(view, view->lines + 1))
2842 line = &view->line[view->lines++];
2843 memset(line, 0, sizeof(*line));
2851 static struct line *
2852 add_line_text(struct view *view, const char *text, enum line_type type)
2854 char *data = text ? strdup(text) : NULL;
2856 return data ? add_line_data(view, data, type) : NULL;
2859 static struct line *
2860 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2862 char buf[SIZEOF_STR];
2865 va_start(args, fmt);
2866 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2870 return buf[0] ? add_line_text(view, buf, type) : NULL;
2878 OPEN_DEFAULT = 0, /* Use default view switching. */
2879 OPEN_SPLIT = 1, /* Split current view. */
2880 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2881 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2882 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2883 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2884 OPEN_PREPARED = 32, /* Open already prepared command. */
2888 open_view(struct view *prev, enum request request, enum open_flags flags)
2890 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2891 bool split = !!(flags & OPEN_SPLIT);
2892 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2893 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2894 struct view *view = VIEW(request);
2895 int nviews = displayed_views();
2896 struct view *base_view = display[0];
2898 if (view == prev && nviews == 1 && !reload) {
2899 report("Already in %s view", view->name);
2903 if (view->git_dir && !opt_git_dir[0]) {
2904 report("The %s view is disabled in pager view", view->name);
2912 } else if (!nomaximize) {
2913 /* Maximize the current view. */
2914 memset(display, 0, sizeof(display));
2916 display[current_view] = view;
2919 /* Resize the view when switching between split- and full-screen,
2920 * or when switching between two different full-screen views. */
2921 if (nviews != displayed_views() ||
2922 (nviews == 1 && base_view != display[0]))
2925 if (view->ops->open) {
2927 end_update(view, TRUE);
2928 if (!view->ops->open(view)) {
2929 report("Failed to load %s view", view->name);
2932 restore_view_position(view);
2934 } else if ((reload || strcmp(view->vid, view->id)) &&
2935 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2936 report("Failed to load %s view", view->name);
2940 if (split && prev->lineno - prev->offset >= prev->height) {
2941 /* Take the title line into account. */
2942 int lines = prev->lineno - prev->offset - prev->height + 1;
2944 /* Scroll the view that was split if the current line is
2945 * outside the new limited view. */
2946 do_scroll_view(prev, lines);
2949 if (prev && view != prev) {
2950 if (split && !backgrounded) {
2951 /* "Blur" the previous view. */
2952 update_view_title(prev);
2955 view->parent = prev;
2958 if (view->pipe && view->lines == 0) {
2959 /* Clear the old view and let the incremental updating refill
2962 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
2964 } else if (view_is_displayed(view)) {
2969 /* If the view is backgrounded the above calls to report()
2970 * won't redraw the view title. */
2972 update_view_title(view);
2976 open_external_viewer(const char *argv[], const char *dir)
2978 def_prog_mode(); /* save current tty modes */
2979 endwin(); /* restore original tty modes */
2980 run_io_fg(argv, dir);
2981 fprintf(stderr, "Press Enter to continue");
2984 redraw_display(TRUE);
2988 open_mergetool(const char *file)
2990 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
2992 open_external_viewer(mergetool_argv, opt_cdup);
2996 open_editor(bool from_root, const char *file)
2998 const char *editor_argv[] = { "vi", file, NULL };
3001 editor = getenv("GIT_EDITOR");
3002 if (!editor && *opt_editor)
3003 editor = opt_editor;
3005 editor = getenv("VISUAL");
3007 editor = getenv("EDITOR");
3011 editor_argv[0] = editor;
3012 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3016 open_run_request(enum request request)
3018 struct run_request *req = get_run_request(request);
3019 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3022 report("Unknown run request");
3026 if (format_argv(argv, req->argv, FORMAT_ALL))
3027 open_external_viewer(argv, NULL);
3032 * User request switch noodle
3036 view_driver(struct view *view, enum request request)
3040 if (request == REQ_NONE) {
3045 if (request > REQ_NONE) {
3046 open_run_request(request);
3047 /* FIXME: When all views can refresh always do this. */
3048 if (view == VIEW(REQ_VIEW_STATUS) ||
3049 view == VIEW(REQ_VIEW_MAIN) ||
3050 view == VIEW(REQ_VIEW_LOG) ||
3051 view == VIEW(REQ_VIEW_STAGE))
3052 request = REQ_REFRESH;
3057 if (view && view->lines) {
3058 request = view->ops->request(view, request, &view->line[view->lineno]);
3059 if (request == REQ_NONE)
3066 case REQ_MOVE_PAGE_UP:
3067 case REQ_MOVE_PAGE_DOWN:
3068 case REQ_MOVE_FIRST_LINE:
3069 case REQ_MOVE_LAST_LINE:
3070 move_view(view, request);
3073 case REQ_SCROLL_LINE_DOWN:
3074 case REQ_SCROLL_LINE_UP:
3075 case REQ_SCROLL_PAGE_DOWN:
3076 case REQ_SCROLL_PAGE_UP:
3077 scroll_view(view, request);
3080 case REQ_VIEW_BLAME:
3082 report("No file chosen, press %s to open tree view",
3083 get_key(REQ_VIEW_TREE));
3086 open_view(view, request, OPEN_DEFAULT);
3091 report("No file chosen, press %s to open tree view",
3092 get_key(REQ_VIEW_TREE));
3095 open_view(view, request, OPEN_DEFAULT);
3098 case REQ_VIEW_PAGER:
3099 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3100 report("No pager content, press %s to run command from prompt",
3101 get_key(REQ_PROMPT));
3104 open_view(view, request, OPEN_DEFAULT);
3107 case REQ_VIEW_STAGE:
3108 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3109 report("No stage content, press %s to open the status view and choose file",
3110 get_key(REQ_VIEW_STATUS));
3113 open_view(view, request, OPEN_DEFAULT);
3116 case REQ_VIEW_STATUS:
3117 if (opt_is_inside_work_tree == FALSE) {
3118 report("The status view requires a working tree");
3121 open_view(view, request, OPEN_DEFAULT);
3129 open_view(view, request, OPEN_DEFAULT);
3134 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3136 if ((view == VIEW(REQ_VIEW_DIFF) &&
3137 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3138 (view == VIEW(REQ_VIEW_DIFF) &&
3139 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3140 (view == VIEW(REQ_VIEW_STAGE) &&
3141 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3142 (view == VIEW(REQ_VIEW_BLOB) &&
3143 view->parent == VIEW(REQ_VIEW_TREE))) {
3146 view = view->parent;
3147 line = view->lineno;
3148 move_view(view, request);
3149 if (view_is_displayed(view))
3150 update_view_title(view);
3151 if (line != view->lineno)
3152 view->ops->request(view, REQ_ENTER,
3153 &view->line[view->lineno]);
3156 move_view(view, request);
3162 int nviews = displayed_views();
3163 int next_view = (current_view + 1) % nviews;
3165 if (next_view == current_view) {
3166 report("Only one view is displayed");
3170 current_view = next_view;
3171 /* Blur out the title of the previous view. */
3172 update_view_title(view);
3177 report("Refreshing is not yet supported for the %s view", view->name);
3181 if (displayed_views() == 2)
3182 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3185 case REQ_TOGGLE_LINENO:
3186 toggle_view_option(&opt_line_number, "line numbers");
3189 case REQ_TOGGLE_DATE:
3190 toggle_view_option(&opt_date, "date display");
3193 case REQ_TOGGLE_AUTHOR:
3194 toggle_view_option(&opt_author, "author display");
3197 case REQ_TOGGLE_REV_GRAPH:
3198 toggle_view_option(&opt_rev_graph, "revision graph display");
3201 case REQ_TOGGLE_REFS:
3202 toggle_view_option(&opt_show_refs, "reference display");
3206 case REQ_SEARCH_BACK:
3207 search_view(view, request);
3212 find_next(view, request);
3215 case REQ_STOP_LOADING:
3216 for (i = 0; i < ARRAY_SIZE(views); i++) {
3219 report("Stopped loading the %s view", view->name),
3220 end_update(view, TRUE);
3224 case REQ_SHOW_VERSION:
3225 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3228 case REQ_SCREEN_REDRAW:
3229 redraw_display(TRUE);
3233 report("Nothing to edit");
3237 report("Nothing to enter");
3240 case REQ_VIEW_CLOSE:
3241 /* XXX: Mark closed views by letting view->parent point to the
3242 * view itself. Parents to closed view should never be
3245 view->parent->parent != view->parent) {
3246 memset(display, 0, sizeof(display));
3248 display[current_view] = view->parent;
3249 view->parent = view;
3251 redraw_display(FALSE);
3260 report("Unknown key, press 'h' for help");
3269 * View backend utilities
3272 /* Parse author lines where the name may be empty:
3273 * author <email@address.tld> 1138474660 +0100
3276 parse_author_line(char *ident, char *author, size_t authorsize, struct tm *tm)
3278 char *nameend = strchr(ident, '<');
3279 char *emailend = strchr(ident, '>');
3281 if (nameend && emailend)
3282 *nameend = *emailend = 0;
3283 ident = chomp_string(ident);
3286 ident = chomp_string(nameend + 1);
3291 string_ncopy_do(author, authorsize, ident, strlen(ident));
3293 /* Parse epoch and timezone */
3294 if (emailend && emailend[1] == ' ') {
3295 char *secs = emailend + 2;
3296 char *zone = strchr(secs, ' ');
3297 time_t time = (time_t) atol(secs);
3299 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
3303 tz = ('0' - zone[1]) * 60 * 60 * 10;
3304 tz += ('0' - zone[2]) * 60 * 60;
3305 tz += ('0' - zone[3]) * 60;
3306 tz += ('0' - zone[4]) * 60;
3314 gmtime_r(&time, tm);
3323 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3325 char *text = line->data;
3327 if (opt_line_number && draw_lineno(view, lineno))
3330 draw_text(view, line->type, text, TRUE);
3335 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3337 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3338 char refbuf[SIZEOF_STR];
3341 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3342 ref = chomp_string(refbuf);
3347 /* This is the only fatal call, since it can "corrupt" the buffer. */
3348 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3355 add_pager_refs(struct view *view, struct line *line)
3357 char buf[SIZEOF_STR];
3358 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3360 size_t bufpos = 0, refpos = 0;
3361 const char *sep = "Refs: ";
3362 bool is_tag = FALSE;
3364 assert(line->type == LINE_COMMIT);
3366 refs = get_refs(commit_id);
3368 if (view == VIEW(REQ_VIEW_DIFF))
3369 goto try_add_describe_ref;
3374 struct ref *ref = refs[refpos];
3375 const char *fmt = ref->tag ? "%s[%s]" :
3376 ref->remote ? "%s<%s>" : "%s%s";
3378 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3383 } while (refs[refpos++]->next);
3385 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3386 try_add_describe_ref:
3387 /* Add <tag>-g<commit_id> "fake" reference. */
3388 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3395 add_line_text(view, buf, LINE_PP_REFS);
3399 pager_read(struct view *view, char *data)
3406 line = add_line_text(view, data, get_line_type(data));
3410 if (line->type == LINE_COMMIT &&
3411 (view == VIEW(REQ_VIEW_DIFF) ||
3412 view == VIEW(REQ_VIEW_LOG)))
3413 add_pager_refs(view, line);
3419 pager_request(struct view *view, enum request request, struct line *line)
3423 if (request != REQ_ENTER)
3426 if (line->type == LINE_COMMIT &&
3427 (view == VIEW(REQ_VIEW_LOG) ||
3428 view == VIEW(REQ_VIEW_PAGER))) {
3429 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3433 /* Always scroll the view even if it was split. That way
3434 * you can use Enter to scroll through the log view and
3435 * split open each commit diff. */
3436 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3438 /* FIXME: A minor workaround. Scrolling the view will call report("")
3439 * but if we are scrolling a non-current view this won't properly
3440 * update the view title. */
3442 update_view_title(view);
3448 pager_grep(struct view *view, struct line *line)
3451 char *text = line->data;
3456 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3463 pager_select(struct view *view, struct line *line)
3465 if (line->type == LINE_COMMIT) {
3466 char *text = (char *)line->data + STRING_SIZE("commit ");
3468 if (view != VIEW(REQ_VIEW_PAGER))
3469 string_copy_rev(view->ref, text);
3470 string_copy_rev(ref_commit, text);
3474 static struct view_ops pager_ops = {
3485 static const char *log_argv[SIZEOF_ARG] = {
3486 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3490 log_request(struct view *view, enum request request, struct line *line)
3495 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3498 return pager_request(view, request, line);
3502 static struct view_ops log_ops = {
3513 static const char *diff_argv[SIZEOF_ARG] = {
3514 "git", "show", "--pretty=fuller", "--no-color", "--root",
3515 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3518 static struct view_ops diff_ops = {
3534 help_open(struct view *view)
3536 int lines = ARRAY_SIZE(req_info) + 2;
3539 if (view->lines > 0)
3542 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3543 if (!req_info[i].request)
3546 lines += run_requests + 1;
3548 view->line = calloc(lines, sizeof(*view->line));
3552 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3554 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3557 if (req_info[i].request == REQ_NONE)
3560 if (!req_info[i].request) {
3561 add_line_text(view, "", LINE_DEFAULT);
3562 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3566 key = get_key(req_info[i].request);
3568 key = "(no key defined)";
3570 add_line_format(view, LINE_DEFAULT, " %-25s %s",
3571 key, req_info[i].help);
3575 add_line_text(view, "", LINE_DEFAULT);
3576 add_line_text(view, "External commands:", LINE_DEFAULT);
3579 for (i = 0; i < run_requests; i++) {
3580 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3582 char cmd[SIZEOF_STR];
3589 key = get_key_name(req->key);
3591 key = "(no key defined)";
3593 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3594 if (!string_format_from(cmd, &bufpos, "%s%s",
3595 argc ? " " : "", req->argv[argc]))
3598 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3599 keymap_table[req->keymap].name, key, cmd);
3605 static struct view_ops help_ops = {
3621 struct tree_stack_entry {
3622 struct tree_stack_entry *prev; /* Entry below this in the stack */
3623 unsigned long lineno; /* Line number to restore */
3624 char *name; /* Position of name in opt_path */
3627 /* The top of the path stack. */
3628 static struct tree_stack_entry *tree_stack = NULL;
3629 unsigned long tree_lineno = 0;
3632 pop_tree_stack_entry(void)
3634 struct tree_stack_entry *entry = tree_stack;
3636 tree_lineno = entry->lineno;
3638 tree_stack = entry->prev;
3643 push_tree_stack_entry(const char *name, unsigned long lineno)
3645 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3646 size_t pathlen = strlen(opt_path);
3651 entry->prev = tree_stack;
3652 entry->name = opt_path + pathlen;
3655 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3656 pop_tree_stack_entry();
3660 /* Move the current line to the first tree entry. */
3662 entry->lineno = lineno;
3665 /* Parse output from git-ls-tree(1):
3667 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3668 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3669 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3670 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3673 #define SIZEOF_TREE_ATTR \
3674 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3676 #define TREE_UP_FORMAT "040000 tree %s\t.."
3679 tree_path(struct line *line)
3681 const char *path = line->data;
3683 return path + SIZEOF_TREE_ATTR;
3687 tree_compare_entry(struct line *line1, struct line *line2)
3689 if (line1->type != line2->type)
3690 return line1->type == LINE_TREE_DIR ? -1 : 1;
3691 return strcmp(tree_path(line1), tree_path(line2));
3695 tree_read(struct view *view, char *text)
3697 size_t textlen = text ? strlen(text) : 0;
3698 struct line *entry, *line;
3699 enum line_type type;
3703 if (textlen <= SIZEOF_TREE_ATTR)
3706 type = text[STRING_SIZE("100644 ")] == 't'
3707 ? LINE_TREE_DIR : LINE_TREE_FILE;
3709 if (view->lines == 0 &&
3710 !add_line_format(view, LINE_DEFAULT, "Directory path /%s", opt_path))
3713 /* Strip the path part ... */
3715 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3716 size_t striplen = strlen(opt_path);
3717 char *path = text + SIZEOF_TREE_ATTR;
3719 if (pathlen > striplen)
3720 memmove(path, path + striplen,
3721 pathlen - striplen + 1);
3723 /* Insert "link" to parent directory. */
3724 if (view->lines == 1 &&
3725 !add_line_format(view, LINE_TREE_DIR, TREE_UP_FORMAT, view->ref))
3729 entry = add_line_text(view, text, type);
3734 /* Skip "Directory ..." and ".." line. */
3735 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3736 if (tree_compare_entry(line, entry) <= 0)
3739 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3743 for (; line <= entry; line++)
3744 line->dirty = line->cleareol = 1;
3748 if (tree_lineno > view->lineno) {
3749 view->lineno = tree_lineno;
3759 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
3760 int fd = mkstemp(file);
3763 report("Failed to create temporary file");
3764 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
3765 report("Failed to save blob data to file");
3767 open_editor(FALSE, file);
3773 tree_request(struct view *view, enum request request, struct line *line)
3775 enum open_flags flags;
3778 case REQ_VIEW_BLAME:
3779 if (line->type != LINE_TREE_FILE) {
3780 report("Blame only supported for files");
3784 string_copy(opt_ref, view->vid);
3788 if (line->type != LINE_TREE_FILE) {
3789 report("Edit only supported for files");
3790 } else if (!is_head_commit(view->vid)) {
3793 open_editor(TRUE, opt_file);
3797 case REQ_TREE_PARENT:
3799 /* quit view if at top of tree */
3800 return REQ_VIEW_CLOSE;
3803 line = &view->line[1];
3813 /* Cleanup the stack if the tree view is at a different tree. */
3814 while (!*opt_path && tree_stack)
3815 pop_tree_stack_entry();
3817 switch (line->type) {
3819 /* Depending on whether it is a subdir or parent (updir?) link
3820 * mangle the path buffer. */
3821 if (line == &view->line[1] && *opt_path) {
3822 pop_tree_stack_entry();
3825 const char *basename = tree_path(line);
3827 push_tree_stack_entry(basename, view->lineno);
3830 /* Trees and subtrees share the same ID, so they are not not
3831 * unique like blobs. */
3832 flags = OPEN_RELOAD;
3833 request = REQ_VIEW_TREE;
3836 case LINE_TREE_FILE:
3837 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3838 request = REQ_VIEW_BLOB;
3845 open_view(view, request, flags);
3846 if (request == REQ_VIEW_TREE) {
3847 view->lineno = tree_lineno;
3854 tree_select(struct view *view, struct line *line)
3856 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3858 if (line->type == LINE_TREE_FILE) {
3859 string_copy_rev(ref_blob, text);
3860 string_format(opt_file, "%s%s", opt_path, tree_path(line));
3862 } else if (line->type != LINE_TREE_DIR) {
3866 string_copy_rev(view->ref, text);
3869 static const char *tree_argv[SIZEOF_ARG] = {
3870 "git", "ls-tree", "%(commit)", "%(directory)", NULL
3873 static struct view_ops tree_ops = {
3885 blob_read(struct view *view, char *line)
3889 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3893 blob_request(struct view *view, enum request request, struct line *line)
3900 return pager_request(view, request, line);
3904 static const char *blob_argv[SIZEOF_ARG] = {
3905 "git", "cat-file", "blob", "%(blob)", NULL
3908 static struct view_ops blob_ops = {
3922 * Loading the blame view is a two phase job:
3924 * 1. File content is read either using opt_file from the
3925 * filesystem or using git-cat-file.
3926 * 2. Then blame information is incrementally added by
3927 * reading output from git-blame.
3930 static const char *blame_head_argv[] = {
3931 "git", "blame", "--incremental", "--", "%(file)", NULL
3934 static const char *blame_ref_argv[] = {
3935 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
3938 static const char *blame_cat_file_argv[] = {
3939 "git", "cat-file", "blob", "%(ref):%(file)", NULL
3942 struct blame_commit {
3943 char id[SIZEOF_REV]; /* SHA1 ID. */
3944 char title[128]; /* First line of the commit message. */
3945 char author[75]; /* Author of the commit. */
3946 struct tm time; /* Date from the author ident. */
3947 char filename[128]; /* Name of file. */
3948 bool has_previous; /* Was a "previous" line detected. */
3952 struct blame_commit *commit;
3957 blame_open(struct view *view)
3959 if (*opt_ref || !io_open(&view->io, opt_file)) {
3960 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
3964 setup_update(view, opt_file);
3965 string_format(view->ref, "%s ...", opt_file);
3970 static struct blame_commit *
3971 get_blame_commit(struct view *view, const char *id)
3975 for (i = 0; i < view->lines; i++) {
3976 struct blame *blame = view->line[i].data;
3981 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3982 return blame->commit;
3986 struct blame_commit *commit = calloc(1, sizeof(*commit));
3989 string_ncopy(commit->id, id, SIZEOF_REV);
3995 parse_number(const char **posref, size_t *number, size_t min, size_t max)
3997 const char *pos = *posref;
4000 pos = strchr(pos + 1, ' ');
4001 if (!pos || !isdigit(pos[1]))
4003 *number = atoi(pos + 1);
4004 if (*number < min || *number > max)
4011 static struct blame_commit *
4012 parse_blame_commit(struct view *view, const char *text, int *blamed)
4014 struct blame_commit *commit;
4015 struct blame *blame;
4016 const char *pos = text + SIZEOF_REV - 1;
4020 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
4023 if (!parse_number(&pos, &lineno, 1, view->lines) ||
4024 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4027 commit = get_blame_commit(view, text);
4033 struct line *line = &view->line[lineno + group - 1];
4036 blame->commit = commit;
4044 blame_read_file(struct view *view, const char *line, bool *read_file)
4047 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4050 if (view->lines == 0 && !view->parent)
4051 die("No blame exist for %s", view->vid);
4053 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4054 report("Failed to load blame data");
4058 done_io(view->pipe);
4064 size_t linelen = strlen(line);
4065 struct blame *blame = malloc(sizeof(*blame) + linelen);
4067 blame->commit = NULL;
4068 strncpy(blame->text, line, linelen);
4069 blame->text[linelen] = 0;
4070 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4075 match_blame_header(const char *name, char **line)
4077 size_t namelen = strlen(name);
4078 bool matched = !strncmp(name, *line, namelen);
4087 blame_read(struct view *view, char *line)
4089 static struct blame_commit *commit = NULL;
4090 static int blamed = 0;
4091 static time_t author_time;
4092 static bool read_file = TRUE;
4095 return blame_read_file(view, line, &read_file);
4102 string_format(view->ref, "%s", view->vid);
4103 if (view_is_displayed(view)) {
4104 update_view_title(view);
4105 redraw_view_from(view, 0);
4111 commit = parse_blame_commit(view, line, &blamed);
4112 string_format(view->ref, "%s %2d%%", view->vid,
4113 view->lines ? blamed * 100 / view->lines : 0);
4115 } else if (match_blame_header("author ", &line)) {
4116 string_ncopy(commit->author, line, strlen(line));
4118 } else if (match_blame_header("author-time ", &line)) {
4119 author_time = (time_t) atol(line);
4121 } else if (match_blame_header("author-tz ", &line)) {
4124 tz = ('0' - line[1]) * 60 * 60 * 10;
4125 tz += ('0' - line[2]) * 60 * 60;
4126 tz += ('0' - line[3]) * 60;
4127 tz += ('0' - line[4]) * 60;
4133 gmtime_r(&author_time, &commit->time);
4135 } else if (match_blame_header("summary ", &line)) {
4136 string_ncopy(commit->title, line, strlen(line));
4138 } else if (match_blame_header("previous ", &line)) {
4139 commit->has_previous = TRUE;
4141 } else if (match_blame_header("filename ", &line)) {
4142 string_ncopy(commit->filename, line, strlen(line));
4150 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4152 struct blame *blame = line->data;
4153 struct tm *time = NULL;
4154 const char *id = NULL, *author = NULL;
4156 if (blame->commit && *blame->commit->filename) {
4157 id = blame->commit->id;
4158 author = blame->commit->author;
4159 time = &blame->commit->time;
4162 if (opt_date && draw_date(view, time))
4166 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
4169 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4172 if (draw_lineno(view, lineno))
4175 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4180 check_blame_commit(struct blame *blame)
4183 report("Commit data not loaded yet");
4184 else if (!strcmp(blame->commit->id, NULL_ID))
4185 report("No commit exist for the selected line");
4192 blame_request(struct view *view, enum request request, struct line *line)
4194 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4195 struct blame *blame = line->data;
4198 case REQ_VIEW_BLAME:
4199 if (check_blame_commit(blame)) {
4200 string_copy(opt_ref, blame->commit->id);
4201 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4206 if (!blame->commit) {
4207 report("No commit loaded yet");
4211 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4212 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4215 if (!strcmp(blame->commit->id, NULL_ID)) {
4216 struct view *diff = VIEW(REQ_VIEW_DIFF);
4217 const char *diff_index_argv[] = {
4218 "git", "diff-index", "--root", "--patch-with-stat",
4219 "-C", "-M", "HEAD", "--", view->vid, NULL
4222 if (!blame->commit->has_previous) {
4223 diff_index_argv[1] = "diff";
4224 diff_index_argv[2] = "--no-color";
4225 diff_index_argv[6] = "--";
4226 diff_index_argv[7] = "/dev/null";
4229 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4230 report("Failed to allocate diff command");
4233 flags |= OPEN_PREPARED;
4236 open_view(view, REQ_VIEW_DIFF, flags);
4237 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4238 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4249 blame_grep(struct view *view, struct line *line)
4251 struct blame *blame = line->data;
4252 struct blame_commit *commit = blame->commit;
4255 #define MATCH(text, on) \
4256 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4259 char buf[DATE_COLS + 1];
4261 if (MATCH(commit->title, 1) ||
4262 MATCH(commit->author, opt_author) ||
4263 MATCH(commit->id, opt_date))
4266 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4271 return MATCH(blame->text, 1);
4277 blame_select(struct view *view, struct line *line)
4279 struct blame *blame = line->data;
4280 struct blame_commit *commit = blame->commit;
4285 if (!strcmp(commit->id, NULL_ID))
4286 string_ncopy(ref_commit, "HEAD", 4);
4288 string_copy_rev(ref_commit, commit->id);
4291 static struct view_ops blame_ops = {
4310 char rev[SIZEOF_REV];
4311 char name[SIZEOF_STR];
4315 char rev[SIZEOF_REV];
4316 char name[SIZEOF_STR];
4320 static char status_onbranch[SIZEOF_STR];
4321 static struct status stage_status;
4322 static enum line_type stage_line_type;
4323 static size_t stage_chunks;
4324 static int *stage_chunk;
4326 /* This should work even for the "On branch" line. */
4328 status_has_none(struct view *view, struct line *line)
4330 return line < view->line + view->lines && !line[1].data;
4333 /* Get fields from the diff line:
4334 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4337 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4339 const char *old_mode = buf + 1;
4340 const char *new_mode = buf + 8;
4341 const char *old_rev = buf + 15;
4342 const char *new_rev = buf + 56;
4343 const char *status = buf + 97;
4346 old_mode[-1] != ':' ||
4347 new_mode[-1] != ' ' ||
4348 old_rev[-1] != ' ' ||
4349 new_rev[-1] != ' ' ||
4353 file->status = *status;
4355 string_copy_rev(file->old.rev, old_rev);
4356 string_copy_rev(file->new.rev, new_rev);
4358 file->old.mode = strtoul(old_mode, NULL, 8);
4359 file->new.mode = strtoul(new_mode, NULL, 8);
4361 file->old.name[0] = file->new.name[0] = 0;
4367 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4369 struct status *file = NULL;
4370 struct status *unmerged = NULL;
4374 if (!run_io(&io, argv, NULL, IO_RD))
4377 add_line_data(view, NULL, type);
4379 while ((buf = io_get(&io, 0, TRUE))) {
4381 file = calloc(1, sizeof(*file));
4382 if (!file || !add_line_data(view, file, type))
4386 /* Parse diff info part. */
4388 file->status = status;
4390 string_copy(file->old.rev, NULL_ID);
4392 } else if (!file->status) {
4393 if (!status_get_diff(file, buf, strlen(buf)))
4396 buf = io_get(&io, 0, TRUE);
4400 /* Collapse all 'M'odified entries that follow a
4401 * associated 'U'nmerged entry. */
4402 if (file->status == 'U') {
4405 } else if (unmerged) {
4406 int collapse = !strcmp(buf, unmerged->new.name);
4418 /* Grab the old name for rename/copy. */
4419 if (!*file->old.name &&
4420 (file->status == 'R' || file->status == 'C')) {
4421 string_ncopy(file->old.name, buf, strlen(buf));
4423 buf = io_get(&io, 0, TRUE);
4428 /* git-ls-files just delivers a NUL separated list of
4429 * file names similar to the second half of the
4430 * git-diff-* output. */
4431 string_ncopy(file->new.name, buf, strlen(buf));
4432 if (!*file->old.name)
4433 string_copy(file->old.name, file->new.name);
4437 if (io_error(&io)) {
4443 if (!view->line[view->lines - 1].data)
4444 add_line_data(view, NULL, LINE_STAT_NONE);
4450 /* Don't show unmerged entries in the staged section. */
4451 static const char *status_diff_index_argv[] = {
4452 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4453 "--cached", "-M", "HEAD", NULL
4456 static const char *status_diff_files_argv[] = {
4457 "git", "diff-files", "-z", NULL
4460 static const char *status_list_other_argv[] = {
4461 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4464 static const char *status_list_no_head_argv[] = {
4465 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4468 static const char *update_index_argv[] = {
4469 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4472 /* Restore the previous line number to stay in the context or select a
4473 * line with something that can be updated. */
4475 status_restore(struct view *view)
4477 if (view->p_lineno >= view->lines)
4478 view->p_lineno = view->lines - 1;
4479 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4481 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4484 /* If the above fails, always skip the "On branch" line. */
4485 if (view->p_lineno < view->lines)
4486 view->lineno = view->p_lineno;
4490 if (view->lineno < view->offset)
4491 view->offset = view->lineno;
4492 else if (view->offset + view->height <= view->lineno)
4493 view->offset = view->lineno - view->height + 1;
4495 view->p_restore = FALSE;
4498 /* First parse staged info using git-diff-index(1), then parse unstaged
4499 * info using git-diff-files(1), and finally untracked files using
4500 * git-ls-files(1). */
4502 status_open(struct view *view)
4506 add_line_data(view, NULL, LINE_STAT_HEAD);
4507 if (is_initial_commit())
4508 string_copy(status_onbranch, "Initial commit");
4509 else if (!*opt_head)
4510 string_copy(status_onbranch, "Not currently on any branch");
4511 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4514 run_io_bg(update_index_argv);
4516 if (is_initial_commit()) {
4517 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4519 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4523 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4524 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4527 /* Restore the exact position or use the specialized restore
4529 if (!view->p_restore)
4530 status_restore(view);
4535 status_draw(struct view *view, struct line *line, unsigned int lineno)
4537 struct status *status = line->data;
4538 enum line_type type;
4542 switch (line->type) {
4543 case LINE_STAT_STAGED:
4544 type = LINE_STAT_SECTION;
4545 text = "Changes to be committed:";
4548 case LINE_STAT_UNSTAGED:
4549 type = LINE_STAT_SECTION;
4550 text = "Changed but not updated:";
4553 case LINE_STAT_UNTRACKED:
4554 type = LINE_STAT_SECTION;
4555 text = "Untracked files:";
4558 case LINE_STAT_NONE:
4559 type = LINE_DEFAULT;
4560 text = " (no files)";
4563 case LINE_STAT_HEAD:
4564 type = LINE_STAT_HEAD;
4565 text = status_onbranch;
4572 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4574 buf[0] = status->status;
4575 if (draw_text(view, line->type, buf, TRUE))
4577 type = LINE_DEFAULT;
4578 text = status->new.name;
4581 draw_text(view, type, text, TRUE);
4586 status_enter(struct view *view, struct line *line)
4588 struct status *status = line->data;
4589 const char *oldpath = status ? status->old.name : NULL;
4590 /* Diffs for unmerged entries are empty when passing the new
4591 * path, so leave it empty. */
4592 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4594 enum open_flags split;
4595 struct view *stage = VIEW(REQ_VIEW_STAGE);
4597 if (line->type == LINE_STAT_NONE ||
4598 (!status && line[1].type == LINE_STAT_NONE)) {
4599 report("No file to diff");
4603 switch (line->type) {
4604 case LINE_STAT_STAGED:
4605 if (is_initial_commit()) {
4606 const char *no_head_diff_argv[] = {
4607 "git", "diff", "--no-color", "--patch-with-stat",
4608 "--", "/dev/null", newpath, NULL
4611 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4614 const char *index_show_argv[] = {
4615 "git", "diff-index", "--root", "--patch-with-stat",
4616 "-C", "-M", "--cached", "HEAD", "--",
4617 oldpath, newpath, NULL
4620 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4625 info = "Staged changes to %s";
4627 info = "Staged changes";
4630 case LINE_STAT_UNSTAGED:
4632 const char *files_show_argv[] = {
4633 "git", "diff-files", "--root", "--patch-with-stat",
4634 "-C", "-M", "--", oldpath, newpath, NULL
4637 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4640 info = "Unstaged changes to %s";
4642 info = "Unstaged changes";
4645 case LINE_STAT_UNTRACKED:
4647 report("No file to show");
4651 if (!suffixcmp(status->new.name, -1, "/")) {
4652 report("Cannot display a directory");
4656 if (!prepare_update_file(stage, newpath))
4658 info = "Untracked file %s";
4661 case LINE_STAT_HEAD:
4665 die("line type %d not handled in switch", line->type);
4668 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4669 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
4670 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4672 stage_status = *status;
4674 memset(&stage_status, 0, sizeof(stage_status));
4677 stage_line_type = line->type;
4679 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4686 status_exists(struct status *status, enum line_type type)
4688 struct view *view = VIEW(REQ_VIEW_STATUS);
4689 unsigned long lineno;
4691 for (lineno = 0; lineno < view->lines; lineno++) {
4692 struct line *line = &view->line[lineno];
4693 struct status *pos = line->data;
4695 if (line->type != type)
4697 if (!pos && (!status || !status->status) && line[1].data) {
4698 select_view_line(view, lineno);
4701 if (pos && !strcmp(status->new.name, pos->new.name)) {
4702 select_view_line(view, lineno);
4712 status_update_prepare(struct io *io, enum line_type type)
4714 const char *staged_argv[] = {
4715 "git", "update-index", "-z", "--index-info", NULL
4717 const char *others_argv[] = {
4718 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4722 case LINE_STAT_STAGED:
4723 return run_io(io, staged_argv, opt_cdup, IO_WR);
4725 case LINE_STAT_UNSTAGED:
4726 return run_io(io, others_argv, opt_cdup, IO_WR);
4728 case LINE_STAT_UNTRACKED:
4729 return run_io(io, others_argv, NULL, IO_WR);
4732 die("line type %d not handled in switch", type);
4738 status_update_write(struct io *io, struct status *status, enum line_type type)
4740 char buf[SIZEOF_STR];
4744 case LINE_STAT_STAGED:
4745 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4748 status->old.name, 0))
4752 case LINE_STAT_UNSTAGED:
4753 case LINE_STAT_UNTRACKED:
4754 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4759 die("line type %d not handled in switch", type);
4762 return io_write(io, buf, bufsize);
4766 status_update_file(struct status *status, enum line_type type)
4771 if (!status_update_prepare(&io, type))
4774 result = status_update_write(&io, status, type);
4780 status_update_files(struct view *view, struct line *line)
4784 struct line *pos = view->line + view->lines;
4788 if (!status_update_prepare(&io, line->type))
4791 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4794 for (file = 0, done = 0; result && file < files; line++, file++) {
4795 int almost_done = file * 100 / files;
4797 if (almost_done > done) {
4799 string_format(view->ref, "updating file %u of %u (%d%% done)",
4801 update_view_title(view);
4803 result = status_update_write(&io, line->data, line->type);
4811 status_update(struct view *view)
4813 struct line *line = &view->line[view->lineno];
4815 assert(view->lines);
4818 /* This should work even for the "On branch" line. */
4819 if (line < view->line + view->lines && !line[1].data) {
4820 report("Nothing to update");
4824 if (!status_update_files(view, line + 1)) {
4825 report("Failed to update file status");
4829 } else if (!status_update_file(line->data, line->type)) {
4830 report("Failed to update file status");
4838 status_revert(struct status *status, enum line_type type, bool has_none)
4840 if (!status || type != LINE_STAT_UNSTAGED) {
4841 if (type == LINE_STAT_STAGED) {
4842 report("Cannot revert changes to staged files");
4843 } else if (type == LINE_STAT_UNTRACKED) {
4844 report("Cannot revert changes to untracked files");
4845 } else if (has_none) {
4846 report("Nothing to revert");
4848 report("Cannot revert changes to multiple files");
4853 const char *checkout_argv[] = {
4854 "git", "checkout", "--", status->old.name, NULL
4857 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
4859 return run_io_fg(checkout_argv, opt_cdup);
4864 status_request(struct view *view, enum request request, struct line *line)
4866 struct status *status = line->data;
4869 case REQ_STATUS_UPDATE:
4870 if (!status_update(view))
4874 case REQ_STATUS_REVERT:
4875 if (!status_revert(status, line->type, status_has_none(view, line)))
4879 case REQ_STATUS_MERGE:
4880 if (!status || status->status != 'U') {
4881 report("Merging only possible for files with unmerged status ('U').");
4884 open_mergetool(status->new.name);
4890 if (status->status == 'D') {
4891 report("File has been deleted.");
4895 open_editor(status->status != '?', status->new.name);
4898 case REQ_VIEW_BLAME:
4900 string_copy(opt_file, status->new.name);
4906 /* After returning the status view has been split to
4907 * show the stage view. No further reloading is
4909 status_enter(view, line);
4913 /* Simply reload the view. */
4920 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4926 status_select(struct view *view, struct line *line)
4928 struct status *status = line->data;
4929 char file[SIZEOF_STR] = "all files";
4933 if (status && !string_format(file, "'%s'", status->new.name))
4936 if (!status && line[1].type == LINE_STAT_NONE)
4939 switch (line->type) {
4940 case LINE_STAT_STAGED:
4941 text = "Press %s to unstage %s for commit";
4944 case LINE_STAT_UNSTAGED:
4945 text = "Press %s to stage %s for commit";
4948 case LINE_STAT_UNTRACKED:
4949 text = "Press %s to stage %s for addition";
4952 case LINE_STAT_HEAD:
4953 case LINE_STAT_NONE:
4954 text = "Nothing to update";
4958 die("line type %d not handled in switch", line->type);
4961 if (status && status->status == 'U') {
4962 text = "Press %s to resolve conflict in %s";
4963 key = get_key(REQ_STATUS_MERGE);
4966 key = get_key(REQ_STATUS_UPDATE);
4969 string_format(view->ref, text, key, file);
4973 status_grep(struct view *view, struct line *line)
4975 struct status *status = line->data;
4976 enum { S_STATUS, S_NAME, S_END } state;
4983 for (state = S_STATUS; state < S_END; state++) {
4987 case S_NAME: text = status->new.name; break;
4989 buf[0] = status->status;
4997 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5004 static struct view_ops status_ops = {
5017 stage_diff_write(struct io *io, struct line *line, struct line *end)
5019 while (line < end) {
5020 if (!io_write(io, line->data, strlen(line->data)) ||
5021 !io_write(io, "\n", 1))
5024 if (line->type == LINE_DIFF_CHUNK ||
5025 line->type == LINE_DIFF_HEADER)
5032 static struct line *
5033 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5035 for (; view->line < line; line--)
5036 if (line->type == type)
5043 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5045 const char *apply_argv[SIZEOF_ARG] = {
5046 "git", "apply", "--whitespace=nowarn", NULL
5048 struct line *diff_hdr;
5052 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5057 apply_argv[argc++] = "--cached";
5058 if (revert || stage_line_type == LINE_STAT_STAGED)
5059 apply_argv[argc++] = "-R";
5060 apply_argv[argc++] = "-";
5061 apply_argv[argc++] = NULL;
5062 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5065 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5066 !stage_diff_write(&io, chunk, view->line + view->lines))
5070 run_io_bg(update_index_argv);
5072 return chunk ? TRUE : FALSE;
5076 stage_update(struct view *view, struct line *line)
5078 struct line *chunk = NULL;
5080 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5081 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5084 if (!stage_apply_chunk(view, chunk, FALSE)) {
5085 report("Failed to apply chunk");
5089 } else if (!stage_status.status) {
5090 view = VIEW(REQ_VIEW_STATUS);
5092 for (line = view->line; line < view->line + view->lines; line++)
5093 if (line->type == stage_line_type)
5096 if (!status_update_files(view, line + 1)) {
5097 report("Failed to update files");
5101 } else if (!status_update_file(&stage_status, stage_line_type)) {
5102 report("Failed to update file");
5110 stage_revert(struct view *view, struct line *line)
5112 struct line *chunk = NULL;
5114 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5115 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5118 if (!prompt_yesno("Are you sure you want to revert changes?"))
5121 if (!stage_apply_chunk(view, chunk, TRUE)) {
5122 report("Failed to revert chunk");
5128 return status_revert(stage_status.status ? &stage_status : NULL,
5129 stage_line_type, FALSE);
5135 stage_next(struct view *view, struct line *line)
5139 if (!stage_chunks) {
5140 static size_t alloc = 0;
5143 for (line = view->line; line < view->line + view->lines; line++) {
5144 if (line->type != LINE_DIFF_CHUNK)
5147 tmp = realloc_items(stage_chunk, &alloc,
5148 stage_chunks, sizeof(*tmp));
5150 report("Allocation failure");
5155 stage_chunk[stage_chunks++] = line - view->line;
5159 for (i = 0; i < stage_chunks; i++) {
5160 if (stage_chunk[i] > view->lineno) {
5161 do_scroll_view(view, stage_chunk[i] - view->lineno);
5162 report("Chunk %d of %d", i + 1, stage_chunks);
5167 report("No next chunk found");
5171 stage_request(struct view *view, enum request request, struct line *line)
5174 case REQ_STATUS_UPDATE:
5175 if (!stage_update(view, line))
5179 case REQ_STATUS_REVERT:
5180 if (!stage_revert(view, line))
5184 case REQ_STAGE_NEXT:
5185 if (stage_line_type == LINE_STAT_UNTRACKED) {
5186 report("File is untracked; press %s to add",
5187 get_key(REQ_STATUS_UPDATE));
5190 stage_next(view, line);
5194 if (!stage_status.new.name[0])
5196 if (stage_status.status == 'D') {
5197 report("File has been deleted.");
5201 open_editor(stage_status.status != '?', stage_status.new.name);
5205 /* Reload everything ... */
5208 case REQ_VIEW_BLAME:
5209 if (stage_status.new.name[0]) {
5210 string_copy(opt_file, stage_status.new.name);
5216 return pager_request(view, request, line);
5222 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5223 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5225 /* Check whether the staged entry still exists, and close the
5226 * stage view if it doesn't. */
5227 if (!status_exists(&stage_status, stage_line_type)) {
5228 status_restore(VIEW(REQ_VIEW_STATUS));
5229 return REQ_VIEW_CLOSE;
5232 if (stage_line_type == LINE_STAT_UNTRACKED) {
5233 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5234 report("Cannot display a directory");
5238 if (!prepare_update_file(view, stage_status.new.name)) {
5239 report("Failed to open file: %s", strerror(errno));
5243 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5248 static struct view_ops stage_ops = {
5265 char id[SIZEOF_REV]; /* SHA1 ID. */
5266 char title[128]; /* First line of the commit message. */
5267 char author[75]; /* Author of the commit. */
5268 struct tm time; /* Date from the author ident. */
5269 struct ref **refs; /* Repository references. */
5270 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5271 size_t graph_size; /* The width of the graph array. */
5272 bool has_parents; /* Rewritten --parents seen. */
5275 /* Size of rev graph with no "padding" columns */
5276 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5279 struct rev_graph *prev, *next, *parents;
5280 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5282 struct commit *commit;
5284 unsigned int boundary:1;
5287 /* Parents of the commit being visualized. */
5288 static struct rev_graph graph_parents[4];
5290 /* The current stack of revisions on the graph. */
5291 static struct rev_graph graph_stacks[4] = {
5292 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5293 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5294 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5295 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5299 graph_parent_is_merge(struct rev_graph *graph)
5301 return graph->parents->size > 1;
5305 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5307 struct commit *commit = graph->commit;
5309 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5310 commit->graph[commit->graph_size++] = symbol;
5314 clear_rev_graph(struct rev_graph *graph)
5316 graph->boundary = 0;
5317 graph->size = graph->pos = 0;
5318 graph->commit = NULL;
5319 memset(graph->parents, 0, sizeof(*graph->parents));
5323 done_rev_graph(struct rev_graph *graph)
5325 if (graph_parent_is_merge(graph) &&
5326 graph->pos < graph->size - 1 &&
5327 graph->next->size == graph->size + graph->parents->size - 1) {
5328 size_t i = graph->pos + graph->parents->size - 1;
5330 graph->commit->graph_size = i * 2;
5331 while (i < graph->next->size - 1) {
5332 append_to_rev_graph(graph, ' ');
5333 append_to_rev_graph(graph, '\\');
5338 clear_rev_graph(graph);
5342 push_rev_graph(struct rev_graph *graph, const char *parent)
5346 /* "Collapse" duplicate parents lines.
5348 * FIXME: This needs to also update update the drawn graph but
5349 * for now it just serves as a method for pruning graph lines. */
5350 for (i = 0; i < graph->size; i++)
5351 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5354 if (graph->size < SIZEOF_REVITEMS) {
5355 string_copy_rev(graph->rev[graph->size++], parent);
5360 get_rev_graph_symbol(struct rev_graph *graph)
5364 if (graph->boundary)
5365 symbol = REVGRAPH_BOUND;
5366 else if (graph->parents->size == 0)
5367 symbol = REVGRAPH_INIT;
5368 else if (graph_parent_is_merge(graph))
5369 symbol = REVGRAPH_MERGE;
5370 else if (graph->pos >= graph->size)
5371 symbol = REVGRAPH_BRANCH;
5373 symbol = REVGRAPH_COMMIT;
5379 draw_rev_graph(struct rev_graph *graph)
5382 chtype separator, line;
5384 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5385 static struct rev_filler fillers[] = {
5391 chtype symbol = get_rev_graph_symbol(graph);
5392 struct rev_filler *filler;
5395 if (opt_line_graphics)
5396 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5398 filler = &fillers[DEFAULT];
5400 for (i = 0; i < graph->pos; i++) {
5401 append_to_rev_graph(graph, filler->line);
5402 if (graph_parent_is_merge(graph->prev) &&
5403 graph->prev->pos == i)
5404 filler = &fillers[RSHARP];
5406 append_to_rev_graph(graph, filler->separator);
5409 /* Place the symbol for this revision. */
5410 append_to_rev_graph(graph, symbol);
5412 if (graph->prev->size > graph->size)
5413 filler = &fillers[RDIAG];
5415 filler = &fillers[DEFAULT];
5419 for (; i < graph->size; i++) {
5420 append_to_rev_graph(graph, filler->separator);
5421 append_to_rev_graph(graph, filler->line);
5422 if (graph_parent_is_merge(graph->prev) &&
5423 i < graph->prev->pos + graph->parents->size)
5424 filler = &fillers[RSHARP];
5425 if (graph->prev->size > graph->size)
5426 filler = &fillers[LDIAG];
5429 if (graph->prev->size > graph->size) {
5430 append_to_rev_graph(graph, filler->separator);
5431 if (filler->line != ' ')
5432 append_to_rev_graph(graph, filler->line);
5436 /* Prepare the next rev graph */
5438 prepare_rev_graph(struct rev_graph *graph)
5442 /* First, traverse all lines of revisions up to the active one. */
5443 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5444 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5447 push_rev_graph(graph->next, graph->rev[graph->pos]);
5450 /* Interleave the new revision parent(s). */
5451 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5452 push_rev_graph(graph->next, graph->parents->rev[i]);
5454 /* Lastly, put any remaining revisions. */
5455 for (i = graph->pos + 1; i < graph->size; i++)
5456 push_rev_graph(graph->next, graph->rev[i]);
5460 update_rev_graph(struct view *view, struct rev_graph *graph)
5462 /* If this is the finalizing update ... */
5464 prepare_rev_graph(graph);
5466 /* Graph visualization needs a one rev look-ahead,
5467 * so the first update doesn't visualize anything. */
5468 if (!graph->prev->commit)
5471 if (view->lines > 2)
5472 view->line[view->lines - 3].dirty = 1;
5473 if (view->lines > 1)
5474 view->line[view->lines - 2].dirty = 1;
5475 draw_rev_graph(graph->prev);
5476 done_rev_graph(graph->prev->prev);
5484 static const char *main_argv[SIZEOF_ARG] = {
5485 "git", "log", "--no-color", "--pretty=raw", "--parents",
5486 "--topo-order", "%(head)", NULL
5490 main_draw(struct view *view, struct line *line, unsigned int lineno)
5492 struct commit *commit = line->data;
5494 if (!*commit->author)
5497 if (opt_date && draw_date(view, &commit->time))
5501 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5504 if (opt_rev_graph && commit->graph_size &&
5505 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5508 if (opt_show_refs && commit->refs) {
5512 enum line_type type;
5514 if (commit->refs[i]->head)
5515 type = LINE_MAIN_HEAD;
5516 else if (commit->refs[i]->ltag)
5517 type = LINE_MAIN_LOCAL_TAG;
5518 else if (commit->refs[i]->tag)
5519 type = LINE_MAIN_TAG;
5520 else if (commit->refs[i]->tracked)
5521 type = LINE_MAIN_TRACKED;
5522 else if (commit->refs[i]->remote)
5523 type = LINE_MAIN_REMOTE;
5525 type = LINE_MAIN_REF;
5527 if (draw_text(view, type, "[", TRUE) ||
5528 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5529 draw_text(view, type, "]", TRUE))
5532 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5534 } while (commit->refs[i++]->next);
5537 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5541 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5543 main_read(struct view *view, char *line)
5545 static struct rev_graph *graph = graph_stacks;
5546 enum line_type type;
5547 struct commit *commit;
5552 if (!view->lines && !view->parent)
5553 die("No revisions match the given arguments.");
5554 if (view->lines > 0) {
5555 commit = view->line[view->lines - 1].data;
5556 view->line[view->lines - 1].dirty = 1;
5557 if (!*commit->author) {
5560 graph->commit = NULL;
5563 update_rev_graph(view, graph);
5565 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5566 clear_rev_graph(&graph_stacks[i]);
5570 type = get_line_type(line);
5571 if (type == LINE_COMMIT) {
5572 commit = calloc(1, sizeof(struct commit));
5576 line += STRING_SIZE("commit ");
5578 graph->boundary = 1;
5582 string_copy_rev(commit->id, line);
5583 commit->refs = get_refs(commit->id);
5584 graph->commit = commit;
5585 add_line_data(view, commit, LINE_MAIN_COMMIT);
5587 while ((line = strchr(line, ' '))) {
5589 push_rev_graph(graph->parents, line);
5590 commit->has_parents = TRUE;
5597 commit = view->line[view->lines - 1].data;
5601 if (commit->has_parents)
5603 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5607 parse_author_line(line + STRING_SIZE("author "),
5608 commit->author, sizeof(commit->author),
5610 update_rev_graph(view, graph);
5611 graph = graph->next;
5615 /* Fill in the commit title if it has not already been set. */
5616 if (commit->title[0])
5619 /* Require titles to start with a non-space character at the
5620 * offset used by git log. */
5621 if (strncmp(line, " ", 4))
5624 /* Well, if the title starts with a whitespace character,
5625 * try to be forgiving. Otherwise we end up with no title. */
5626 while (isspace(*line))
5630 /* FIXME: More graceful handling of titles; append "..." to
5631 * shortened titles, etc. */
5633 string_ncopy(commit->title, line, strlen(line));
5634 view->line[view->lines - 1].dirty = 1;
5641 main_request(struct view *view, enum request request, struct line *line)
5643 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5647 open_view(view, REQ_VIEW_DIFF, flags);
5651 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5661 grep_refs(struct ref **refs, regex_t *regex)
5669 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5671 } while (refs[i++]->next);
5677 main_grep(struct view *view, struct line *line)
5679 struct commit *commit = line->data;
5680 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5681 char buf[DATE_COLS + 1];
5684 for (state = S_TITLE; state < S_END; state++) {
5688 case S_TITLE: text = commit->title; break;
5692 text = commit->author;
5697 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5704 if (grep_refs(commit->refs, view->regex) == TRUE)
5711 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5719 main_select(struct view *view, struct line *line)
5721 struct commit *commit = line->data;
5723 string_copy_rev(view->ref, commit->id);
5724 string_copy_rev(ref_commit, view->ref);
5727 static struct view_ops main_ops = {
5740 * Unicode / UTF-8 handling
5742 * NOTE: Much of the following code for dealing with unicode is derived from
5743 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5744 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5747 /* I've (over)annotated a lot of code snippets because I am not entirely
5748 * confident that the approach taken by this small UTF-8 interface is correct.
5752 unicode_width(unsigned long c)
5755 (c <= 0x115f /* Hangul Jamo */
5758 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5760 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5761 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5762 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5763 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5764 || (c >= 0xffe0 && c <= 0xffe6)
5765 || (c >= 0x20000 && c <= 0x2fffd)
5766 || (c >= 0x30000 && c <= 0x3fffd)))
5770 return opt_tab_size;
5775 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5776 * Illegal bytes are set one. */
5777 static const unsigned char utf8_bytes[256] = {
5778 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5779 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,
5780 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,
5781 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,
5782 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,
5783 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,
5784 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,
5785 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,
5788 /* Decode UTF-8 multi-byte representation into a unicode character. */
5789 static inline unsigned long
5790 utf8_to_unicode(const char *string, size_t length)
5792 unsigned long unicode;
5796 unicode = string[0];
5799 unicode = (string[0] & 0x1f) << 6;
5800 unicode += (string[1] & 0x3f);
5803 unicode = (string[0] & 0x0f) << 12;
5804 unicode += ((string[1] & 0x3f) << 6);
5805 unicode += (string[2] & 0x3f);
5808 unicode = (string[0] & 0x0f) << 18;
5809 unicode += ((string[1] & 0x3f) << 12);
5810 unicode += ((string[2] & 0x3f) << 6);
5811 unicode += (string[3] & 0x3f);
5814 unicode = (string[0] & 0x0f) << 24;
5815 unicode += ((string[1] & 0x3f) << 18);
5816 unicode += ((string[2] & 0x3f) << 12);
5817 unicode += ((string[3] & 0x3f) << 6);
5818 unicode += (string[4] & 0x3f);
5821 unicode = (string[0] & 0x01) << 30;
5822 unicode += ((string[1] & 0x3f) << 24);
5823 unicode += ((string[2] & 0x3f) << 18);
5824 unicode += ((string[3] & 0x3f) << 12);
5825 unicode += ((string[4] & 0x3f) << 6);
5826 unicode += (string[5] & 0x3f);
5829 die("Invalid unicode length");
5832 /* Invalid characters could return the special 0xfffd value but NUL
5833 * should be just as good. */
5834 return unicode > 0xffff ? 0 : unicode;
5837 /* Calculates how much of string can be shown within the given maximum width
5838 * and sets trimmed parameter to non-zero value if all of string could not be
5839 * shown. If the reserve flag is TRUE, it will reserve at least one
5840 * trailing character, which can be useful when drawing a delimiter.
5842 * Returns the number of bytes to output from string to satisfy max_width. */
5844 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5846 const char *start = string;
5847 const char *end = strchr(string, '\0');
5848 unsigned char last_bytes = 0;
5849 size_t last_ucwidth = 0;
5854 while (string < end) {
5855 int c = *(unsigned char *) string;
5856 unsigned char bytes = utf8_bytes[c];
5858 unsigned long unicode;
5860 if (string + bytes > end)
5863 /* Change representation to figure out whether
5864 * it is a single- or double-width character. */
5866 unicode = utf8_to_unicode(string, bytes);
5867 /* FIXME: Graceful handling of invalid unicode character. */
5871 ucwidth = unicode_width(unicode);
5873 if (*width > max_width) {
5876 if (reserve && *width == max_width) {
5877 string -= last_bytes;
5878 *width -= last_ucwidth;
5885 last_ucwidth = ucwidth;
5888 return string - start;
5896 /* Whether or not the curses interface has been initialized. */
5897 static bool cursed = FALSE;
5899 /* The status window is used for polling keystrokes. */
5900 static WINDOW *status_win;
5902 static bool status_empty = TRUE;
5904 /* Update status and title window. */
5906 report(const char *msg, ...)
5908 struct view *view = display[current_view];
5914 char buf[SIZEOF_STR];
5917 va_start(args, msg);
5918 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5919 buf[sizeof(buf) - 1] = 0;
5920 buf[sizeof(buf) - 2] = '.';
5921 buf[sizeof(buf) - 3] = '.';
5922 buf[sizeof(buf) - 4] = '.';
5928 if (!status_empty || *msg) {
5931 va_start(args, msg);
5933 wmove(status_win, 0, 0);
5935 vwprintw(status_win, msg, args);
5936 status_empty = FALSE;
5938 status_empty = TRUE;
5940 wclrtoeol(status_win);
5941 wrefresh(status_win);
5946 update_view_title(view);
5947 update_display_cursor(view);
5950 /* Controls when nodelay should be in effect when polling user input. */
5952 set_nonblocking_input(bool loading)
5954 static unsigned int loading_views;
5956 if ((loading == FALSE && loading_views-- == 1) ||
5957 (loading == TRUE && loading_views++ == 0))
5958 nodelay(status_win, loading);
5966 /* Initialize the curses library */
5967 if (isatty(STDIN_FILENO)) {
5968 cursed = !!initscr();
5971 /* Leave stdin and stdout alone when acting as a pager. */
5972 opt_tty = fopen("/dev/tty", "r+");
5974 die("Failed to open /dev/tty");
5975 cursed = !!newterm(NULL, opt_tty, opt_tty);
5979 die("Failed to initialize curses");
5981 nonl(); /* Tell curses not to do NL->CR/NL on output */
5982 cbreak(); /* Take input chars one at a time, no wait for \n */
5983 noecho(); /* Don't echo input */
5984 leaveok(stdscr, TRUE);
5989 getmaxyx(stdscr, y, x);
5990 status_win = newwin(1, 0, y - 1, 0);
5992 die("Failed to create status window");
5994 /* Enable keyboard mapping */
5995 keypad(status_win, TRUE);
5996 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5998 TABSIZE = opt_tab_size;
5999 if (opt_line_graphics) {
6000 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6005 get_input(bool prompting)
6014 foreach_view (view, i)
6017 /* Refresh, accept single keystroke of input */
6018 key = wgetch(status_win);
6020 /* wgetch() with nodelay() enabled returns ERR when
6021 * there's no input. */
6025 } else if (key == KEY_RESIZE) {
6028 getmaxyx(stdscr, height, width);
6030 /* Resize the status view and let the view driver take
6031 * care of resizing the displayed views. */
6033 redraw_display(TRUE);
6034 wresize(status_win, 1, width);
6035 mvwin(status_win, height - 1, 0);
6036 wrefresh(status_win);
6046 prompt_yesno(const char *prompt)
6048 enum { WAIT, STOP, CANCEL } status = WAIT;
6049 bool answer = FALSE;
6051 while (status == WAIT) {
6054 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
6055 wclrtoeol(status_win);
6057 key = get_input(TRUE);
6078 /* Clear the status window */
6079 status_empty = FALSE;
6086 read_prompt(const char *prompt)
6088 enum { READING, STOP, CANCEL } status = READING;
6089 static char buf[SIZEOF_STR];
6092 while (status == READING) {
6095 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6096 wclrtoeol(status_win);
6098 key = get_input(TRUE);
6103 status = pos ? STOP : CANCEL;
6118 if (pos >= sizeof(buf)) {
6119 report("Input string too long");
6124 buf[pos++] = (char) key;
6128 /* Clear the status window */
6129 status_empty = FALSE;
6132 if (status == CANCEL)
6141 * Repository properties
6145 git_properties(const char **argv, const char *separators,
6146 int (*read_property)(char *, size_t, char *, size_t))
6150 if (init_io_rd(&io, argv, NULL, FORMAT_NONE))
6151 return read_properties(&io, separators, read_property);
6155 static struct ref *refs = NULL;
6156 static size_t refs_alloc = 0;
6157 static size_t refs_size = 0;
6159 /* Id <-> ref store */
6160 static struct ref ***id_refs = NULL;
6161 static size_t id_refs_alloc = 0;
6162 static size_t id_refs_size = 0;
6165 compare_refs(const void *ref1_, const void *ref2_)
6167 const struct ref *ref1 = *(const struct ref **)ref1_;
6168 const struct ref *ref2 = *(const struct ref **)ref2_;
6170 if (ref1->tag != ref2->tag)
6171 return ref2->tag - ref1->tag;
6172 if (ref1->ltag != ref2->ltag)
6173 return ref2->ltag - ref2->ltag;
6174 if (ref1->head != ref2->head)
6175 return ref2->head - ref1->head;
6176 if (ref1->tracked != ref2->tracked)
6177 return ref2->tracked - ref1->tracked;
6178 if (ref1->remote != ref2->remote)
6179 return ref2->remote - ref1->remote;
6180 return strcmp(ref1->name, ref2->name);
6183 static struct ref **
6184 get_refs(const char *id)
6186 struct ref ***tmp_id_refs;
6187 struct ref **ref_list = NULL;
6188 size_t ref_list_alloc = 0;
6189 size_t ref_list_size = 0;
6192 for (i = 0; i < id_refs_size; i++)
6193 if (!strcmp(id, id_refs[i][0]->id))
6196 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6201 id_refs = tmp_id_refs;
6203 for (i = 0; i < refs_size; i++) {
6206 if (strcmp(id, refs[i].id))
6209 tmp = realloc_items(ref_list, &ref_list_alloc,
6210 ref_list_size + 1, sizeof(*ref_list));
6218 ref_list[ref_list_size] = &refs[i];
6219 /* XXX: The properties of the commit chains ensures that we can
6220 * safely modify the shared ref. The repo references will
6221 * always be similar for the same id. */
6222 ref_list[ref_list_size]->next = 1;
6228 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6229 ref_list[ref_list_size - 1]->next = 0;
6230 id_refs[id_refs_size++] = ref_list;
6237 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6242 bool remote = FALSE;
6243 bool tracked = FALSE;
6244 bool check_replace = FALSE;
6247 if (!prefixcmp(name, "refs/tags/")) {
6248 if (!suffixcmp(name, namelen, "^{}")) {
6251 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6252 check_replace = TRUE;
6258 namelen -= STRING_SIZE("refs/tags/");
6259 name += STRING_SIZE("refs/tags/");
6261 } else if (!prefixcmp(name, "refs/remotes/")) {
6263 namelen -= STRING_SIZE("refs/remotes/");
6264 name += STRING_SIZE("refs/remotes/");
6265 tracked = !strcmp(opt_remote, name);
6267 } else if (!prefixcmp(name, "refs/heads/")) {
6268 namelen -= STRING_SIZE("refs/heads/");
6269 name += STRING_SIZE("refs/heads/");
6270 head = !strncmp(opt_head, name, namelen);
6272 } else if (!strcmp(name, "HEAD")) {
6273 string_ncopy(opt_head_rev, id, idlen);
6277 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6278 /* it's an annotated tag, replace the previous sha1 with the
6279 * resolved commit id; relies on the fact git-ls-remote lists
6280 * the commit id of an annotated tag right before the commit id
6282 refs[refs_size - 1].ltag = ltag;
6283 string_copy_rev(refs[refs_size - 1].id, id);
6287 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6291 ref = &refs[refs_size++];
6292 ref->name = malloc(namelen + 1);
6296 strncpy(ref->name, name, namelen);
6297 ref->name[namelen] = 0;
6301 ref->remote = remote;
6302 ref->tracked = tracked;
6303 string_copy_rev(ref->id, id);
6311 static const char *ls_remote_argv[SIZEOF_ARG] = {
6312 "git", "ls-remote", ".", NULL
6314 static bool init = FALSE;
6317 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6324 while (refs_size > 0)
6325 free(refs[--refs_size].name);
6326 while (id_refs_size > 0)
6327 free(id_refs[--id_refs_size]);
6329 return git_properties(ls_remote_argv, "\t", read_ref);
6333 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6335 if (!strcmp(name, "i18n.commitencoding"))
6336 string_ncopy(opt_encoding, value, valuelen);
6338 if (!strcmp(name, "core.editor"))
6339 string_ncopy(opt_editor, value, valuelen);
6341 /* branch.<head>.remote */
6343 !strncmp(name, "branch.", 7) &&
6344 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6345 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6346 string_ncopy(opt_remote, value, valuelen);
6348 if (*opt_head && *opt_remote &&
6349 !strncmp(name, "branch.", 7) &&
6350 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6351 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6352 size_t from = strlen(opt_remote);
6354 if (!prefixcmp(value, "refs/heads/")) {
6355 value += STRING_SIZE("refs/heads/");
6356 valuelen -= STRING_SIZE("refs/heads/");
6359 if (!string_format_from(opt_remote, &from, "/%s", value))
6367 load_git_config(void)
6369 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6371 return git_properties(config_list_argv, "=", read_repo_config_option);
6375 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6377 if (!opt_git_dir[0]) {
6378 string_ncopy(opt_git_dir, name, namelen);
6380 } else if (opt_is_inside_work_tree == -1) {
6381 /* This can be 3 different values depending on the
6382 * version of git being used. If git-rev-parse does not
6383 * understand --is-inside-work-tree it will simply echo
6384 * the option else either "true" or "false" is printed.
6385 * Default to true for the unknown case. */
6386 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6388 string_ncopy(opt_cdup, name, namelen);
6395 load_repo_info(void)
6397 const char *head_argv[] = {
6398 "git", "symbolic-ref", "HEAD", NULL
6400 const char *rev_parse_argv[] = {
6401 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6405 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6406 chomp_string(opt_head);
6407 if (!prefixcmp(opt_head, "refs/heads/")) {
6408 char *offset = opt_head + STRING_SIZE("refs/heads/");
6410 memmove(opt_head, offset, strlen(offset) + 1);
6414 return git_properties(rev_parse_argv, "=", read_repo_info);
6418 read_properties(struct io *io, const char *separators,
6419 int (*read_property)(char *, size_t, char *, size_t))
6427 while (state == OK && (name = io_get(io, '\n', TRUE))) {
6432 name = chomp_string(name);
6433 namelen = strcspn(name, separators);
6435 if (name[namelen]) {
6437 value = chomp_string(name + namelen + 1);
6438 valuelen = strlen(value);
6445 state = read_property(name, namelen, value, valuelen);
6448 if (state != ERR && io_error(io))
6460 static void __NORETURN
6463 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6469 static void __NORETURN
6470 die(const char *err, ...)
6476 va_start(args, err);
6477 fputs("tig: ", stderr);
6478 vfprintf(stderr, err, args);
6479 fputs("\n", stderr);
6486 warn(const char *msg, ...)
6490 va_start(args, msg);
6491 fputs("tig warning: ", stderr);
6492 vfprintf(stderr, msg, args);
6493 fputs("\n", stderr);
6498 main(int argc, const char *argv[])
6500 const char **run_argv = NULL;
6502 enum request request;
6505 signal(SIGINT, quit);
6507 if (setlocale(LC_ALL, "")) {
6508 char *codeset = nl_langinfo(CODESET);
6510 string_ncopy(opt_codeset, codeset, strlen(codeset));
6513 if (load_repo_info() == ERR)
6514 die("Failed to load repo info.");
6516 if (load_options() == ERR)
6517 die("Failed to load user config.");
6519 if (load_git_config() == ERR)
6520 die("Failed to load repo config.");
6522 request = parse_options(argc, argv, &run_argv);
6523 if (request == REQ_NONE)
6526 /* Require a git repository unless when running in pager mode. */
6527 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6528 die("Not a git repository");
6530 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6533 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6534 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6535 if (opt_iconv == ICONV_NONE)
6536 die("Failed to initialize character set conversion");
6539 if (load_refs() == ERR)
6540 die("Failed to load refs.");
6542 foreach_view (view, i)
6543 argv_from_env(view->ops->argv, view->cmd_env);
6547 if (request == REQ_VIEW_PAGER || run_argv) {
6548 if (request == REQ_VIEW_PAGER)
6549 io_open(&VIEW(request)->io, "");
6550 else if (!prepare_update(VIEW(request), run_argv, NULL, FORMAT_NONE))
6551 die("Failed to format arguments");
6552 open_view(NULL, request, OPEN_PREPARED);
6556 while (view_driver(display[current_view], request)) {
6557 int key = get_input(FALSE);
6559 view = display[current_view];
6560 request = get_keybinding(view->keymap, key);
6562 /* Some low-level request handling. This keeps access to
6563 * status_win restricted. */
6567 char *cmd = read_prompt(":");
6570 struct view *next = VIEW(REQ_VIEW_PAGER);
6571 const char *argv[SIZEOF_ARG] = { "git" };
6574 /* When running random commands, initially show the
6575 * command in the title. However, it maybe later be
6576 * overwritten if a commit line is selected. */
6577 string_ncopy(next->ref, cmd, strlen(cmd));
6579 if (!argv_from_string(argv, &argc, cmd)) {
6580 report("Too many arguments");
6581 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6582 report("Failed to format command");
6584 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6592 case REQ_SEARCH_BACK:
6594 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6595 char *search = read_prompt(prompt);
6598 string_ncopy(opt_search, search, strlen(search));