1 /* Copyright (c) 2006-2008 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>
47 /* ncurses(3): Must be defined to have extended wide-character functions. */
48 #define _XOPEN_SOURCE_EXTENDED
50 #ifdef HAVE_NCURSESW_NCURSES_H
51 #include <ncursesw/ncurses.h>
53 #ifdef HAVE_NCURSES_NCURSES_H
54 #include <ncurses/ncurses.h>
61 #define __NORETURN __attribute__((__noreturn__))
66 static void __NORETURN die(const char *err, ...);
67 static void warn(const char *msg, ...);
68 static void report(const char *msg, ...);
69 static void set_nonblocking_input(bool loading);
70 static size_t utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve);
71 static bool prompt_yesno(const char *prompt);
72 static int load_refs(void);
74 #define ABS(x) ((x) >= 0 ? (x) : -(x))
75 #define MIN(x, y) ((x) < (y) ? (x) : (y))
77 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
78 #define STRING_SIZE(x) (sizeof(x) - 1)
80 #define SIZEOF_STR 1024 /* Default string size. */
81 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
82 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL. */
83 #define SIZEOF_ARG 32 /* Default argument array size. */
87 #define REVGRAPH_INIT 'I'
88 #define REVGRAPH_MERGE 'M'
89 #define REVGRAPH_BRANCH '+'
90 #define REVGRAPH_COMMIT '*'
91 #define REVGRAPH_BOUND '^'
93 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
95 /* This color name can be used to refer to the default term colors. */
96 #define COLOR_DEFAULT (-1)
98 #define ICONV_NONE ((iconv_t) -1)
100 #define ICONV_CONST /* nothing */
103 /* The format and size of the date column in the main view. */
104 #define DATE_FORMAT "%Y-%m-%d %H:%M"
105 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
107 #define AUTHOR_COLS 20
110 /* The default interval between line numbers. */
111 #define NUMBER_INTERVAL 5
115 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
117 #define NULL_ID "0000000000000000000000000000000000000000"
120 #define GIT_CONFIG "config"
123 /* Some ascii-shorthands fitted into the ncurses namespace. */
125 #define KEY_RETURN '\r'
130 char *name; /* Ref name; tag or head names are shortened. */
131 char id[SIZEOF_REV]; /* Commit SHA1 ID */
132 unsigned int head:1; /* Is it the current HEAD? */
133 unsigned int tag:1; /* Is it a tag? */
134 unsigned int ltag:1; /* If so, is the tag local? */
135 unsigned int remote:1; /* Is it a remote ref? */
136 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
137 unsigned int next:1; /* For ref lists: are there more refs? */
140 static struct ref **get_refs(const char *id);
143 FORMAT_ALL, /* Perform replacement in all arguments. */
144 FORMAT_DASH, /* Perform replacement up until "--". */
145 FORMAT_NONE /* No replacement should be performed. */
148 static bool format_argv(const char *dst[], const char *src[], enum format_flags flags);
157 set_from_int_map(struct int_map *map, size_t map_size,
158 int *value, const char *name, int namelen)
163 for (i = 0; i < map_size; i++)
164 if (namelen == map[i].namelen &&
165 !strncasecmp(name, map[i].name, namelen)) {
166 *value = map[i].value;
179 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
181 if (srclen > dstlen - 1)
184 strncpy(dst, src, srclen);
188 /* Shorthands for safely copying into a fixed buffer. */
190 #define string_copy(dst, src) \
191 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
193 #define string_ncopy(dst, src, srclen) \
194 string_ncopy_do(dst, sizeof(dst), src, srclen)
196 #define string_copy_rev(dst, src) \
197 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
199 #define string_add(dst, from, src) \
200 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
203 chomp_string(char *name)
207 while (isspace(*name))
210 namelen = strlen(name) - 1;
211 while (namelen > 0 && isspace(name[namelen]))
218 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
221 size_t pos = bufpos ? *bufpos : 0;
224 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
230 return pos >= bufsize ? FALSE : TRUE;
233 #define string_format(buf, fmt, args...) \
234 string_nformat(buf, sizeof(buf), NULL, fmt, args)
236 #define string_format_from(buf, from, fmt, args...) \
237 string_nformat(buf, sizeof(buf), from, fmt, args)
240 string_enum_compare(const char *str1, const char *str2, int len)
244 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
246 /* Diff-Header == DIFF_HEADER */
247 for (i = 0; i < len; i++) {
248 if (toupper(str1[i]) == toupper(str2[i]))
251 if (string_enum_sep(str1[i]) &&
252 string_enum_sep(str2[i]))
255 return str1[i] - str2[i];
261 #define prefixcmp(str1, str2) \
262 strncmp(str1, str2, STRING_SIZE(str2))
265 suffixcmp(const char *str, int slen, const char *suffix)
267 size_t len = slen >= 0 ? slen : strlen(str);
268 size_t suffixlen = strlen(suffix);
270 return suffixlen < len ? strcmp(str + len - suffixlen, suffix) : -1;
275 argv_from_string(const char *argv[SIZEOF_ARG], int *argc, char *cmd)
279 while (*cmd && *argc < SIZEOF_ARG && (valuelen = strcspn(cmd, " \t"))) {
280 bool advance = cmd[valuelen] != 0;
283 argv[(*argc)++] = chomp_string(cmd);
284 cmd += valuelen + advance;
287 if (*argc < SIZEOF_ARG)
289 return *argc < SIZEOF_ARG;
293 argv_from_env(const char **argv, const char *name)
295 char *env = argv ? getenv(name) : NULL;
300 if (env && !argv_from_string(argv, &argc, env))
301 die("Too many arguments in the `%s` environment variable", name);
306 * Executing external commands.
310 IO_FD, /* File descriptor based IO. */
311 IO_BG, /* Execute command in the background. */
312 IO_FG, /* Execute command with same std{in,out,err}. */
313 IO_RD, /* Read only fork+exec IO. */
314 IO_WR, /* Write only fork+exec IO. */
318 enum io_type type; /* The requested type of pipe. */
319 const char *dir; /* Directory from which to execute. */
320 pid_t pid; /* Pipe for reading or writing. */
321 int pipe; /* Pipe end for reading or writing. */
322 int error; /* Error status. */
323 const char *argv[SIZEOF_ARG]; /* Shell command arguments. */
324 char *buf; /* Read buffer. */
325 size_t bufalloc; /* Allocated buffer size. */
326 size_t bufsize; /* Buffer content size. */
327 char *bufpos; /* Current buffer position. */
328 unsigned int eof:1; /* Has end of file been reached. */
332 reset_io(struct io *io)
336 io->buf = io->bufpos = NULL;
337 io->bufalloc = io->bufsize = 0;
343 init_io(struct io *io, const char *dir, enum io_type type)
351 init_io_rd(struct io *io, const char *argv[], const char *dir,
352 enum format_flags flags)
354 init_io(io, dir, IO_RD);
355 return format_argv(io->argv, argv, flags);
359 io_open(struct io *io, const char *name)
361 init_io(io, NULL, IO_FD);
362 io->pipe = *name ? open(name, O_RDONLY) : STDIN_FILENO;
363 return io->pipe != -1;
367 kill_io(struct io *io)
369 return kill(io->pid, SIGKILL) != -1;
373 done_io(struct io *io)
384 pid_t waiting = waitpid(pid, &status, 0);
389 report("waitpid failed (%s)", strerror(errno));
393 return waiting == pid &&
394 !WIFSIGNALED(status) &&
396 !WEXITSTATUS(status);
403 start_io(struct io *io)
405 int pipefds[2] = { -1, -1 };
407 if (io->type == IO_FD)
410 if ((io->type == IO_RD || io->type == IO_WR) &&
414 if ((io->pid = fork())) {
415 if (pipefds[!(io->type == IO_WR)] != -1)
416 close(pipefds[!(io->type == IO_WR)]);
418 io->pipe = pipefds[!!(io->type == IO_WR)];
423 if (io->type != IO_FG) {
424 int devnull = open("/dev/null", O_RDWR);
425 int readfd = io->type == IO_WR ? pipefds[0] : devnull;
426 int writefd = io->type == IO_RD ? pipefds[1] : devnull;
428 dup2(readfd, STDIN_FILENO);
429 dup2(writefd, STDOUT_FILENO);
430 dup2(devnull, STDERR_FILENO);
433 if (pipefds[0] != -1)
435 if (pipefds[1] != -1)
439 if (io->dir && *io->dir && chdir(io->dir) == -1)
440 die("Failed to change directory: %s", strerror(errno));
442 execvp(io->argv[0], (char *const*) io->argv);
443 die("Failed to execute program: %s", strerror(errno));
446 if (pipefds[!!(io->type == IO_WR)] != -1)
447 close(pipefds[!!(io->type == IO_WR)]);
452 run_io(struct io *io, const char **argv, const char *dir, enum io_type type)
454 init_io(io, dir, type);
455 if (!format_argv(io->argv, argv, FORMAT_NONE))
461 run_io_do(struct io *io)
463 return start_io(io) && done_io(io);
467 run_io_bg(const char **argv)
471 init_io(&io, NULL, IO_BG);
472 if (!format_argv(io.argv, argv, FORMAT_NONE))
474 return run_io_do(&io);
478 run_io_fg(const char **argv, const char *dir)
482 init_io(&io, dir, IO_FG);
483 if (!format_argv(io.argv, argv, FORMAT_NONE))
485 return run_io_do(&io);
489 run_io_rd(struct io *io, const char **argv, enum format_flags flags)
491 return init_io_rd(io, argv, NULL, flags) && start_io(io);
495 io_eof(struct io *io)
501 io_error(struct io *io)
507 io_strerror(struct io *io)
509 return strerror(io->error);
513 io_read(struct io *io, void *buf, size_t bufsize)
516 ssize_t readsize = read(io->pipe, buf, bufsize);
518 if (readsize < 0 && (errno == EAGAIN || errno == EINTR))
520 else if (readsize == -1)
522 else if (readsize == 0)
529 io_get(struct io *io, int c, bool can_read)
535 io->buf = io->bufpos = malloc(BUFSIZ);
538 io->bufalloc = BUFSIZ;
543 if (io->bufsize > 0) {
544 eol = memchr(io->bufpos, c, io->bufsize);
546 char *line = io->bufpos;
549 io->bufpos = eol + 1;
550 io->bufsize -= io->bufpos - line;
557 io->bufpos[io->bufsize] = 0;
567 if (io->bufsize > 0 && io->bufpos > io->buf)
568 memmove(io->buf, io->bufpos, io->bufsize);
570 io->bufpos = io->buf;
571 readsize = io_read(io, io->buf + io->bufsize, io->bufalloc - io->bufsize);
574 io->bufsize += readsize;
579 io_write(struct io *io, const void *buf, size_t bufsize)
583 while (!io_error(io) && written < bufsize) {
586 size = write(io->pipe, buf + written, bufsize - written);
587 if (size < 0 && (errno == EAGAIN || errno == EINTR))
595 return written == bufsize;
599 run_io_buf(const char **argv, char buf[], size_t bufsize)
604 if (!run_io_rd(&io, argv, FORMAT_NONE))
607 io.buf = io.bufpos = buf;
608 io.bufalloc = bufsize;
609 error = !io_get(&io, '\n', TRUE) && io_error(&io);
612 return done_io(&io) || error;
615 static int read_properties(struct io *io, const char *separators, int (*read)(char *, size_t, char *, size_t));
622 /* XXX: Keep the view request first and in sync with views[]. */ \
623 REQ_GROUP("View switching") \
624 REQ_(VIEW_MAIN, "Show main view"), \
625 REQ_(VIEW_DIFF, "Show diff view"), \
626 REQ_(VIEW_LOG, "Show log view"), \
627 REQ_(VIEW_TREE, "Show tree view"), \
628 REQ_(VIEW_BLOB, "Show blob view"), \
629 REQ_(VIEW_BLAME, "Show blame view"), \
630 REQ_(VIEW_HELP, "Show help page"), \
631 REQ_(VIEW_PAGER, "Show pager view"), \
632 REQ_(VIEW_STATUS, "Show status view"), \
633 REQ_(VIEW_STAGE, "Show stage view"), \
635 REQ_GROUP("View manipulation") \
636 REQ_(ENTER, "Enter current line and scroll"), \
637 REQ_(NEXT, "Move to next"), \
638 REQ_(PREVIOUS, "Move to previous"), \
639 REQ_(VIEW_NEXT, "Move focus to next view"), \
640 REQ_(REFRESH, "Reload and refresh"), \
641 REQ_(MAXIMIZE, "Maximize the current view"), \
642 REQ_(VIEW_CLOSE, "Close the current view"), \
643 REQ_(QUIT, "Close all views and quit"), \
645 REQ_GROUP("View specific requests") \
646 REQ_(STATUS_UPDATE, "Update file status"), \
647 REQ_(STATUS_REVERT, "Revert file changes"), \
648 REQ_(STATUS_MERGE, "Merge file using external tool"), \
649 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
650 REQ_(TREE_PARENT, "Switch to parent directory in tree view"), \
652 REQ_GROUP("Cursor navigation") \
653 REQ_(MOVE_UP, "Move cursor one line up"), \
654 REQ_(MOVE_DOWN, "Move cursor one line down"), \
655 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
656 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
657 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
658 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
660 REQ_GROUP("Scrolling") \
661 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
662 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
663 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
664 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
666 REQ_GROUP("Searching") \
667 REQ_(SEARCH, "Search the view"), \
668 REQ_(SEARCH_BACK, "Search backwards in the view"), \
669 REQ_(FIND_NEXT, "Find next search match"), \
670 REQ_(FIND_PREV, "Find previous search match"), \
672 REQ_GROUP("Option manipulation") \
673 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
674 REQ_(TOGGLE_DATE, "Toggle date display"), \
675 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
676 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
677 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
680 REQ_(PROMPT, "Bring up the prompt"), \
681 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
682 REQ_(SCREEN_RESIZE, "Resize the screen"), \
683 REQ_(SHOW_VERSION, "Show version information"), \
684 REQ_(STOP_LOADING, "Stop all loading views"), \
685 REQ_(EDIT, "Open in editor"), \
686 REQ_(NONE, "Do nothing")
689 /* User action requests. */
691 #define REQ_GROUP(help)
692 #define REQ_(req, help) REQ_##req
694 /* Offset all requests to avoid conflicts with ncurses getch values. */
695 REQ_OFFSET = KEY_MAX + 1,
702 struct request_info {
703 enum request request;
709 static struct request_info req_info[] = {
710 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
711 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
718 get_request(const char *name)
720 int namelen = strlen(name);
723 for (i = 0; i < ARRAY_SIZE(req_info); i++)
724 if (req_info[i].namelen == namelen &&
725 !string_enum_compare(req_info[i].name, name, namelen))
726 return req_info[i].request;
736 static const char usage[] =
737 "tig " TIG_VERSION " (" __DATE__ ")\n"
739 "Usage: tig [options] [revs] [--] [paths]\n"
740 " or: tig show [options] [revs] [--] [paths]\n"
741 " or: tig blame [rev] path\n"
743 " or: tig < [git command output]\n"
746 " -v, --version Show version and exit\n"
747 " -h, --help Show help message and exit";
749 /* Option and state variables. */
750 static bool opt_date = TRUE;
751 static bool opt_author = TRUE;
752 static bool opt_line_number = FALSE;
753 static bool opt_line_graphics = TRUE;
754 static bool opt_rev_graph = FALSE;
755 static bool opt_show_refs = TRUE;
756 static int opt_num_interval = NUMBER_INTERVAL;
757 static int opt_tab_size = TAB_SIZE;
758 static int opt_author_cols = AUTHOR_COLS-1;
759 static char opt_path[SIZEOF_STR] = "";
760 static char opt_file[SIZEOF_STR] = "";
761 static char opt_ref[SIZEOF_REF] = "";
762 static char opt_head[SIZEOF_REF] = "";
763 static char opt_head_rev[SIZEOF_REV] = "";
764 static char opt_remote[SIZEOF_REF] = "";
765 static char opt_encoding[20] = "UTF-8";
766 static bool opt_utf8 = TRUE;
767 static char opt_codeset[20] = "UTF-8";
768 static iconv_t opt_iconv = ICONV_NONE;
769 static char opt_search[SIZEOF_STR] = "";
770 static char opt_cdup[SIZEOF_STR] = "";
771 static char opt_git_dir[SIZEOF_STR] = "";
772 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
773 static char opt_editor[SIZEOF_STR] = "";
774 static FILE *opt_tty = NULL;
776 #define is_initial_commit() (!*opt_head_rev)
777 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || !strcmp(opt_head_rev, (rev)))
780 parse_options(int argc, const char *argv[], const char ***run_argv)
782 enum request request = REQ_VIEW_MAIN;
783 const char *subcommand;
784 bool seen_dashdash = FALSE;
785 /* XXX: This is vulnerable to the user overriding options
786 * required for the main view parser. */
787 const char *custom_argv[SIZEOF_ARG] = {
788 "git", "log", "--no-color", "--pretty=raw", "--parents",
793 if (!isatty(STDIN_FILENO))
794 return REQ_VIEW_PAGER;
797 return REQ_VIEW_MAIN;
799 subcommand = argv[1];
800 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
801 if (!strcmp(subcommand, "-S"))
802 warn("`-S' has been deprecated; use `tig status' instead");
804 warn("ignoring arguments after `%s'", subcommand);
805 return REQ_VIEW_STATUS;
807 } else if (!strcmp(subcommand, "blame")) {
808 if (argc <= 2 || argc > 4)
809 die("invalid number of options to blame\n\n%s", usage);
813 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
817 string_ncopy(opt_file, argv[i], strlen(argv[i]));
818 return REQ_VIEW_BLAME;
820 } else if (!strcmp(subcommand, "show")) {
821 request = REQ_VIEW_DIFF;
823 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
824 request = subcommand[0] == 'l' ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
825 warn("`tig %s' has been deprecated", subcommand);
832 custom_argv[1] = subcommand;
836 for (i = 1 + !!subcommand; i < argc; i++) {
837 const char *opt = argv[i];
839 if (seen_dashdash || !strcmp(opt, "--")) {
840 seen_dashdash = TRUE;
842 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
843 printf("tig version %s\n", TIG_VERSION);
846 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
847 printf("%s\n", usage);
851 custom_argv[j++] = opt;
852 if (j >= ARRAY_SIZE(custom_argv))
853 die("command too long");
856 custom_argv[j] = NULL;
857 *run_argv = custom_argv;
864 * Line-oriented content detection.
868 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
869 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
870 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
871 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
872 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
873 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
874 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
875 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
876 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
877 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
878 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
879 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
880 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
881 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
882 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
883 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
884 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
885 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
886 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
887 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
888 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
889 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
890 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
891 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
892 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
893 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
894 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
895 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
896 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
897 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
898 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
899 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
900 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
901 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
902 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
903 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
904 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
905 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
906 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
907 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
908 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
909 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
910 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
911 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
912 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
913 LINE(TREE_DIR, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
914 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
915 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
916 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
917 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
918 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
919 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
920 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
921 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
924 #define LINE(type, line, fg, bg, attr) \
932 const char *name; /* Option name. */
933 int namelen; /* Size of option name. */
934 const char *line; /* The start of line to match. */
935 int linelen; /* Size of string to match. */
936 int fg, bg, attr; /* Color and text attributes for the lines. */
939 static struct line_info line_info[] = {
940 #define LINE(type, line, fg, bg, attr) \
941 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
946 static enum line_type
947 get_line_type(const char *line)
949 int linelen = strlen(line);
952 for (type = 0; type < ARRAY_SIZE(line_info); type++)
953 /* Case insensitive search matches Signed-off-by lines better. */
954 if (linelen >= line_info[type].linelen &&
955 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
962 get_line_attr(enum line_type type)
964 assert(type < ARRAY_SIZE(line_info));
965 return COLOR_PAIR(type) | line_info[type].attr;
968 static struct line_info *
969 get_line_info(const char *name)
971 size_t namelen = strlen(name);
974 for (type = 0; type < ARRAY_SIZE(line_info); type++)
975 if (namelen == line_info[type].namelen &&
976 !string_enum_compare(line_info[type].name, name, namelen))
977 return &line_info[type];
985 int default_bg = line_info[LINE_DEFAULT].bg;
986 int default_fg = line_info[LINE_DEFAULT].fg;
991 if (assume_default_colors(default_fg, default_bg) == ERR) {
992 default_bg = COLOR_BLACK;
993 default_fg = COLOR_WHITE;
996 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
997 struct line_info *info = &line_info[type];
998 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
999 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
1001 init_pair(type, fg, bg);
1006 enum line_type type;
1009 unsigned int selected:1;
1010 unsigned int dirty:1;
1012 void *data; /* User data */
1022 enum request request;
1025 static struct keybinding default_keybindings[] = {
1026 /* View switching */
1027 { 'm', REQ_VIEW_MAIN },
1028 { 'd', REQ_VIEW_DIFF },
1029 { 'l', REQ_VIEW_LOG },
1030 { 't', REQ_VIEW_TREE },
1031 { 'f', REQ_VIEW_BLOB },
1032 { 'B', REQ_VIEW_BLAME },
1033 { 'p', REQ_VIEW_PAGER },
1034 { 'h', REQ_VIEW_HELP },
1035 { 'S', REQ_VIEW_STATUS },
1036 { 'c', REQ_VIEW_STAGE },
1038 /* View manipulation */
1039 { 'q', REQ_VIEW_CLOSE },
1040 { KEY_TAB, REQ_VIEW_NEXT },
1041 { KEY_RETURN, REQ_ENTER },
1042 { KEY_UP, REQ_PREVIOUS },
1043 { KEY_DOWN, REQ_NEXT },
1044 { 'R', REQ_REFRESH },
1045 { KEY_F(5), REQ_REFRESH },
1046 { 'O', REQ_MAXIMIZE },
1048 /* Cursor navigation */
1049 { 'k', REQ_MOVE_UP },
1050 { 'j', REQ_MOVE_DOWN },
1051 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1052 { KEY_END, REQ_MOVE_LAST_LINE },
1053 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1054 { ' ', REQ_MOVE_PAGE_DOWN },
1055 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1056 { 'b', REQ_MOVE_PAGE_UP },
1057 { '-', REQ_MOVE_PAGE_UP },
1060 { KEY_IC, REQ_SCROLL_LINE_UP },
1061 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1062 { 'w', REQ_SCROLL_PAGE_UP },
1063 { 's', REQ_SCROLL_PAGE_DOWN },
1066 { '/', REQ_SEARCH },
1067 { '?', REQ_SEARCH_BACK },
1068 { 'n', REQ_FIND_NEXT },
1069 { 'N', REQ_FIND_PREV },
1073 { 'z', REQ_STOP_LOADING },
1074 { 'v', REQ_SHOW_VERSION },
1075 { 'r', REQ_SCREEN_REDRAW },
1076 { '.', REQ_TOGGLE_LINENO },
1077 { 'D', REQ_TOGGLE_DATE },
1078 { 'A', REQ_TOGGLE_AUTHOR },
1079 { 'g', REQ_TOGGLE_REV_GRAPH },
1080 { 'F', REQ_TOGGLE_REFS },
1081 { ':', REQ_PROMPT },
1082 { 'u', REQ_STATUS_UPDATE },
1083 { '!', REQ_STATUS_REVERT },
1084 { 'M', REQ_STATUS_MERGE },
1085 { '@', REQ_STAGE_NEXT },
1086 { ',', REQ_TREE_PARENT },
1089 /* Using the ncurses SIGWINCH handler. */
1090 { KEY_RESIZE, REQ_SCREEN_RESIZE },
1093 #define KEYMAP_INFO \
1107 #define KEYMAP_(name) KEYMAP_##name
1112 static struct int_map keymap_table[] = {
1113 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
1118 #define set_keymap(map, name) \
1119 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
1121 struct keybinding_table {
1122 struct keybinding *data;
1126 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1129 add_keybinding(enum keymap keymap, enum request request, int key)
1131 struct keybinding_table *table = &keybindings[keymap];
1133 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1135 die("Failed to allocate keybinding");
1136 table->data[table->size].alias = key;
1137 table->data[table->size++].request = request;
1140 /* Looks for a key binding first in the given map, then in the generic map, and
1141 * lastly in the default keybindings. */
1143 get_keybinding(enum keymap keymap, int key)
1147 for (i = 0; i < keybindings[keymap].size; i++)
1148 if (keybindings[keymap].data[i].alias == key)
1149 return keybindings[keymap].data[i].request;
1151 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1152 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1153 return keybindings[KEYMAP_GENERIC].data[i].request;
1155 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1156 if (default_keybindings[i].alias == key)
1157 return default_keybindings[i].request;
1159 return (enum request) key;
1168 static struct key key_table[] = {
1169 { "Enter", KEY_RETURN },
1171 { "Backspace", KEY_BACKSPACE },
1173 { "Escape", KEY_ESC },
1174 { "Left", KEY_LEFT },
1175 { "Right", KEY_RIGHT },
1177 { "Down", KEY_DOWN },
1178 { "Insert", KEY_IC },
1179 { "Delete", KEY_DC },
1181 { "Home", KEY_HOME },
1183 { "PageUp", KEY_PPAGE },
1184 { "PageDown", KEY_NPAGE },
1194 { "F10", KEY_F(10) },
1195 { "F11", KEY_F(11) },
1196 { "F12", KEY_F(12) },
1200 get_key_value(const char *name)
1204 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1205 if (!strcasecmp(key_table[i].name, name))
1206 return key_table[i].value;
1208 if (strlen(name) == 1 && isprint(*name))
1215 get_key_name(int key_value)
1217 static char key_char[] = "'X'";
1218 const char *seq = NULL;
1221 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1222 if (key_table[key].value == key_value)
1223 seq = key_table[key].name;
1227 isprint(key_value)) {
1228 key_char[1] = (char) key_value;
1232 return seq ? seq : "(no key)";
1236 get_key(enum request request)
1238 static char buf[BUFSIZ];
1245 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1246 struct keybinding *keybinding = &default_keybindings[i];
1248 if (keybinding->request != request)
1251 if (!string_format_from(buf, &pos, "%s%s", sep,
1252 get_key_name(keybinding->alias)))
1253 return "Too many keybindings!";
1260 struct run_request {
1263 const char *argv[SIZEOF_ARG];
1266 static struct run_request *run_request;
1267 static size_t run_requests;
1270 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1272 struct run_request *req;
1274 if (argc >= ARRAY_SIZE(req->argv) - 1)
1277 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1282 req = &run_request[run_requests];
1283 req->keymap = keymap;
1285 req->argv[0] = NULL;
1287 if (!format_argv(req->argv, argv, FORMAT_NONE))
1290 return REQ_NONE + ++run_requests;
1293 static struct run_request *
1294 get_run_request(enum request request)
1296 if (request <= REQ_NONE)
1298 return &run_request[request - REQ_NONE - 1];
1302 add_builtin_run_requests(void)
1304 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1305 const char *gc[] = { "git", "gc", NULL };
1312 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1313 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1317 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1320 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1321 if (req != REQ_NONE)
1322 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1327 * User config file handling.
1330 static struct int_map color_map[] = {
1331 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1343 #define set_color(color, name) \
1344 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1346 static struct int_map attr_map[] = {
1347 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1354 ATTR_MAP(UNDERLINE),
1357 #define set_attribute(attr, name) \
1358 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1360 static int config_lineno;
1361 static bool config_errors;
1362 static const char *config_msg;
1364 /* Wants: object fgcolor bgcolor [attr] */
1366 option_color_command(int argc, const char *argv[])
1368 struct line_info *info;
1370 if (argc != 3 && argc != 4) {
1371 config_msg = "Wrong number of arguments given to color command";
1375 info = get_line_info(argv[0]);
1377 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1378 info = get_line_info("delimiter");
1380 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1381 info = get_line_info("date");
1384 config_msg = "Unknown color name";
1389 if (set_color(&info->fg, argv[1]) == ERR ||
1390 set_color(&info->bg, argv[2]) == ERR) {
1391 config_msg = "Unknown color";
1395 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1396 config_msg = "Unknown attribute";
1403 static bool parse_bool(const char *s)
1405 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1406 !strcmp(s, "yes")) ? TRUE : FALSE;
1410 parse_int(const char *s, int default_value, int min, int max)
1412 int value = atoi(s);
1414 return (value < min || value > max) ? default_value : value;
1417 /* Wants: name = value */
1419 option_set_command(int argc, const char *argv[])
1422 config_msg = "Wrong number of arguments given to set command";
1426 if (strcmp(argv[1], "=")) {
1427 config_msg = "No value assigned";
1431 if (!strcmp(argv[0], "show-author")) {
1432 opt_author = parse_bool(argv[2]);
1436 if (!strcmp(argv[0], "show-date")) {
1437 opt_date = parse_bool(argv[2]);
1441 if (!strcmp(argv[0], "show-rev-graph")) {
1442 opt_rev_graph = parse_bool(argv[2]);
1446 if (!strcmp(argv[0], "show-refs")) {
1447 opt_show_refs = parse_bool(argv[2]);
1451 if (!strcmp(argv[0], "show-line-numbers")) {
1452 opt_line_number = parse_bool(argv[2]);
1456 if (!strcmp(argv[0], "line-graphics")) {
1457 opt_line_graphics = parse_bool(argv[2]);
1461 if (!strcmp(argv[0], "line-number-interval")) {
1462 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1466 if (!strcmp(argv[0], "author-width")) {
1467 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1471 if (!strcmp(argv[0], "tab-size")) {
1472 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1476 if (!strcmp(argv[0], "commit-encoding")) {
1477 const char *arg = argv[2];
1478 int arglen = strlen(arg);
1483 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1484 config_msg = "Unmatched quotation";
1487 arg += 1; arglen -= 2;
1489 string_ncopy(opt_encoding, arg, strlen(arg));
1494 config_msg = "Unknown variable name";
1498 /* Wants: mode request key */
1500 option_bind_command(int argc, const char *argv[])
1502 enum request request;
1507 config_msg = "Wrong number of arguments given to bind command";
1511 if (set_keymap(&keymap, argv[0]) == ERR) {
1512 config_msg = "Unknown key map";
1516 key = get_key_value(argv[1]);
1518 config_msg = "Unknown key";
1522 request = get_request(argv[2]);
1523 if (request == REQ_NONE) {
1524 const char *obsolete[] = { "cherry-pick" };
1525 size_t namelen = strlen(argv[2]);
1528 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1529 if (namelen == strlen(obsolete[i]) &&
1530 !string_enum_compare(obsolete[i], argv[2], namelen)) {
1531 config_msg = "Obsolete request name";
1536 if (request == REQ_NONE && *argv[2]++ == '!')
1537 request = add_run_request(keymap, key, argc - 2, argv + 2);
1538 if (request == REQ_NONE) {
1539 config_msg = "Unknown request name";
1543 add_keybinding(keymap, request, key);
1549 set_option(const char *opt, char *value)
1551 const char *argv[SIZEOF_ARG];
1554 if (!argv_from_string(argv, &argc, value)) {
1555 config_msg = "Too many option arguments";
1559 if (!strcmp(opt, "color"))
1560 return option_color_command(argc, argv);
1562 if (!strcmp(opt, "set"))
1563 return option_set_command(argc, argv);
1565 if (!strcmp(opt, "bind"))
1566 return option_bind_command(argc, argv);
1568 config_msg = "Unknown option command";
1573 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1578 config_msg = "Internal error";
1580 /* Check for comment markers, since read_properties() will
1581 * only ensure opt and value are split at first " \t". */
1582 optlen = strcspn(opt, "#");
1586 if (opt[optlen] != 0) {
1587 config_msg = "No option value";
1591 /* Look for comment endings in the value. */
1592 size_t len = strcspn(value, "#");
1594 if (len < valuelen) {
1596 value[valuelen] = 0;
1599 status = set_option(opt, value);
1602 if (status == ERR) {
1603 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1604 config_lineno, (int) optlen, opt, config_msg);
1605 config_errors = TRUE;
1608 /* Always keep going if errors are encountered. */
1613 load_option_file(const char *path)
1617 /* It's ok that the file doesn't exist. */
1618 if (!io_open(&io, path))
1622 config_errors = FALSE;
1624 if (read_properties(&io, " \t", read_option) == ERR ||
1625 config_errors == TRUE)
1626 fprintf(stderr, "Errors while loading %s.\n", path);
1632 const char *home = getenv("HOME");
1633 const char *tigrc_user = getenv("TIGRC_USER");
1634 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1635 char buf[SIZEOF_STR];
1637 add_builtin_run_requests();
1639 if (!tigrc_system) {
1640 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1644 load_option_file(tigrc_system);
1647 if (!home || !string_format(buf, "%s/.tigrc", home))
1651 load_option_file(tigrc_user);
1664 /* The display array of active views and the index of the current view. */
1665 static struct view *display[2];
1666 static unsigned int current_view;
1668 /* Reading from the prompt? */
1669 static bool input_mode = FALSE;
1671 #define foreach_displayed_view(view, i) \
1672 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1674 #define displayed_views() (display[1] != NULL ? 2 : 1)
1676 /* Current head and commit ID */
1677 static char ref_blob[SIZEOF_REF] = "";
1678 static char ref_commit[SIZEOF_REF] = "HEAD";
1679 static char ref_head[SIZEOF_REF] = "HEAD";
1682 const char *name; /* View name */
1683 const char *cmd_env; /* Command line set via environment */
1684 const char *id; /* Points to either of ref_{head,commit,blob} */
1686 struct view_ops *ops; /* View operations */
1688 enum keymap keymap; /* What keymap does this view have */
1689 bool git_dir; /* Whether the view requires a git directory. */
1691 char ref[SIZEOF_REF]; /* Hovered commit reference */
1692 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1694 int height, width; /* The width and height of the main window */
1695 WINDOW *win; /* The main window */
1696 WINDOW *title; /* The title window living below the main window */
1699 unsigned long offset; /* Offset of the window top */
1700 unsigned long lineno; /* Current line number */
1703 char grep[SIZEOF_STR]; /* Search string */
1704 regex_t *regex; /* Pre-compiled regex */
1706 /* If non-NULL, points to the view that opened this view. If this view
1707 * is closed tig will switch back to the parent view. */
1708 struct view *parent;
1711 size_t lines; /* Total number of lines */
1712 struct line *line; /* Line index */
1713 size_t line_alloc; /* Total number of allocated lines */
1714 size_t line_size; /* Total number of used lines */
1715 unsigned int digits; /* Number of digits in the lines member. */
1718 struct line *curline; /* Line currently being drawn. */
1719 enum line_type curtype; /* Attribute currently used for drawing. */
1720 unsigned long col; /* Column when drawing. */
1729 /* What type of content being displayed. Used in the title bar. */
1731 /* Default command arguments. */
1733 /* Open and reads in all view content. */
1734 bool (*open)(struct view *view);
1735 /* Read one line; updates view->line. */
1736 bool (*read)(struct view *view, char *data);
1737 /* Draw one line; @lineno must be < view->height. */
1738 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1739 /* Depending on view handle a special requests. */
1740 enum request (*request)(struct view *view, enum request request, struct line *line);
1741 /* Search for regex in a line. */
1742 bool (*grep)(struct view *view, struct line *line);
1744 void (*select)(struct view *view, struct line *line);
1747 static struct view_ops blame_ops;
1748 static struct view_ops blob_ops;
1749 static struct view_ops diff_ops;
1750 static struct view_ops help_ops;
1751 static struct view_ops log_ops;
1752 static struct view_ops main_ops;
1753 static struct view_ops pager_ops;
1754 static struct view_ops stage_ops;
1755 static struct view_ops status_ops;
1756 static struct view_ops tree_ops;
1758 #define VIEW_STR(name, env, ref, ops, map, git) \
1759 { name, #env, ref, ops, map, git }
1761 #define VIEW_(id, name, ops, git, ref) \
1762 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1765 static struct view views[] = {
1766 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1767 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1768 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1769 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1770 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1771 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1772 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1773 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1774 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1775 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1778 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1779 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1781 #define foreach_view(view, i) \
1782 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1784 #define view_is_displayed(view) \
1785 (view == display[0] || view == display[1])
1792 static int line_graphics[] = {
1793 /* LINE_GRAPHIC_VLINE: */ '|'
1797 set_view_attr(struct view *view, enum line_type type)
1799 if (!view->curline->selected && view->curtype != type) {
1800 wattrset(view->win, get_line_attr(type));
1801 wchgat(view->win, -1, 0, type, NULL);
1802 view->curtype = type;
1807 draw_chars(struct view *view, enum line_type type, const char *string,
1808 int max_len, bool use_tilde)
1812 int trimmed = FALSE;
1818 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1820 col = len = strlen(string);
1821 if (len > max_len) {
1825 col = len = max_len;
1830 set_view_attr(view, type);
1831 waddnstr(view->win, string, len);
1832 if (trimmed && use_tilde) {
1833 set_view_attr(view, LINE_DELIMITER);
1834 waddch(view->win, '~');
1842 draw_space(struct view *view, enum line_type type, int max, int spaces)
1844 static char space[] = " ";
1847 spaces = MIN(max, spaces);
1849 while (spaces > 0) {
1850 int len = MIN(spaces, sizeof(space) - 1);
1852 col += draw_chars(view, type, space, spaces, FALSE);
1860 draw_lineno(struct view *view, unsigned int lineno)
1863 int digits3 = view->digits < 3 ? 3 : view->digits;
1864 int max_number = MIN(digits3, STRING_SIZE(number));
1865 int max = view->width - view->col;
1868 if (max < max_number)
1871 lineno += view->offset + 1;
1872 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1873 static char fmt[] = "%1ld";
1875 if (view->digits <= 9)
1876 fmt[1] = '0' + digits3;
1878 if (!string_format(number, fmt, lineno))
1880 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1882 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1886 set_view_attr(view, LINE_DEFAULT);
1887 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1892 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1895 return view->width - view->col <= 0;
1899 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1901 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1902 return view->width - view->col <= 0;
1906 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1908 int max = view->width - view->col;
1914 set_view_attr(view, type);
1915 /* Using waddch() instead of waddnstr() ensures that
1916 * they'll be rendered correctly for the cursor line. */
1917 for (i = 0; i < size; i++)
1918 waddch(view->win, graphic[i]);
1922 waddch(view->win, ' ');
1926 return view->width - view->col <= 0;
1930 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1932 int max = MIN(view->width - view->col, len);
1936 col = draw_chars(view, type, text, max - 1, trim);
1938 col = draw_space(view, type, max - 1, max - 1);
1940 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1941 return view->width - view->col <= 0;
1945 draw_date(struct view *view, struct tm *time)
1947 char buf[DATE_COLS];
1952 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1953 date = timelen ? buf : NULL;
1955 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1959 draw_view_line(struct view *view, unsigned int lineno)
1962 bool selected = (view->offset + lineno == view->lineno);
1965 assert(view_is_displayed(view));
1967 if (view->offset + lineno >= view->lines)
1970 line = &view->line[view->offset + lineno];
1972 wmove(view->win, lineno, 0);
1974 view->curline = line;
1975 view->curtype = LINE_NONE;
1976 line->selected = FALSE;
1979 set_view_attr(view, LINE_CURSOR);
1980 line->selected = TRUE;
1981 view->ops->select(view, line);
1982 } else if (line->selected) {
1983 wclrtoeol(view->win);
1986 scrollok(view->win, FALSE);
1987 draw_ok = view->ops->draw(view, line, lineno);
1988 scrollok(view->win, TRUE);
1994 redraw_view_dirty(struct view *view)
1999 for (lineno = 0; lineno < view->height; lineno++) {
2000 struct line *line = &view->line[view->offset + lineno];
2006 if (!draw_view_line(view, lineno))
2012 redrawwin(view->win);
2014 wnoutrefresh(view->win);
2016 wrefresh(view->win);
2020 redraw_view_from(struct view *view, int lineno)
2022 assert(0 <= lineno && lineno < view->height);
2024 for (; lineno < view->height; lineno++) {
2025 if (!draw_view_line(view, lineno))
2029 redrawwin(view->win);
2031 wnoutrefresh(view->win);
2033 wrefresh(view->win);
2037 redraw_view(struct view *view)
2040 redraw_view_from(view, 0);
2045 update_view_title(struct view *view)
2047 char buf[SIZEOF_STR];
2048 char state[SIZEOF_STR];
2049 size_t bufpos = 0, statelen = 0;
2051 assert(view_is_displayed(view));
2053 if (view != VIEW(REQ_VIEW_STATUS) && (view->lines || view->pipe)) {
2054 unsigned int view_lines = view->offset + view->height;
2055 unsigned int lines = view->lines
2056 ? MIN(view_lines, view->lines) * 100 / view->lines
2059 string_format_from(state, &statelen, "- %s %d of %d (%d%%)",
2066 time_t secs = time(NULL) - view->start_time;
2068 /* Three git seconds are a long time ... */
2070 string_format_from(state, &statelen, " %lds", secs);
2074 string_format_from(buf, &bufpos, "[%s]", view->name);
2075 if (*view->ref && bufpos < view->width) {
2076 size_t refsize = strlen(view->ref);
2077 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2079 if (minsize < view->width)
2080 refsize = view->width - minsize + 7;
2081 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2084 if (statelen && bufpos < view->width) {
2085 string_format_from(buf, &bufpos, " %s", state);
2088 if (view == display[current_view])
2089 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2091 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2093 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2094 wclrtoeol(view->title);
2095 wmove(view->title, 0, view->width - 1);
2098 wnoutrefresh(view->title);
2100 wrefresh(view->title);
2104 resize_display(void)
2107 struct view *base = display[0];
2108 struct view *view = display[1] ? display[1] : display[0];
2110 /* Setup window dimensions */
2112 getmaxyx(stdscr, base->height, base->width);
2114 /* Make room for the status window. */
2118 /* Horizontal split. */
2119 view->width = base->width;
2120 view->height = SCALE_SPLIT_VIEW(base->height);
2121 base->height -= view->height;
2123 /* Make room for the title bar. */
2127 /* Make room for the title bar. */
2132 foreach_displayed_view (view, i) {
2134 view->win = newwin(view->height, 0, offset, 0);
2136 die("Failed to create %s view", view->name);
2138 scrollok(view->win, TRUE);
2140 view->title = newwin(1, 0, offset + view->height, 0);
2142 die("Failed to create title window");
2145 wresize(view->win, view->height, view->width);
2146 mvwin(view->win, offset, 0);
2147 mvwin(view->title, offset + view->height, 0);
2150 offset += view->height + 1;
2155 redraw_display(void)
2160 foreach_displayed_view (view, i) {
2162 update_view_title(view);
2167 update_display_cursor(struct view *view)
2169 /* Move the cursor to the right-most column of the cursor line.
2171 * XXX: This could turn out to be a bit expensive, but it ensures that
2172 * the cursor does not jump around. */
2174 wmove(view->win, view->lineno - view->offset, view->width - 1);
2175 wrefresh(view->win);
2183 /* Scrolling backend */
2185 do_scroll_view(struct view *view, int lines)
2187 bool redraw_current_line = FALSE;
2189 /* The rendering expects the new offset. */
2190 view->offset += lines;
2192 assert(0 <= view->offset && view->offset < view->lines);
2195 /* Move current line into the view. */
2196 if (view->lineno < view->offset) {
2197 view->lineno = view->offset;
2198 redraw_current_line = TRUE;
2199 } else if (view->lineno >= view->offset + view->height) {
2200 view->lineno = view->offset + view->height - 1;
2201 redraw_current_line = TRUE;
2204 assert(view->offset <= view->lineno && view->lineno < view->lines);
2206 /* Redraw the whole screen if scrolling is pointless. */
2207 if (view->height < ABS(lines)) {
2211 int line = lines > 0 ? view->height - lines : 0;
2212 int end = line + ABS(lines);
2214 wscrl(view->win, lines);
2216 for (; line < end; line++) {
2217 if (!draw_view_line(view, line))
2221 if (redraw_current_line)
2222 draw_view_line(view, view->lineno - view->offset);
2225 redrawwin(view->win);
2226 wrefresh(view->win);
2230 /* Scroll frontend */
2232 scroll_view(struct view *view, enum request request)
2236 assert(view_is_displayed(view));
2239 case REQ_SCROLL_PAGE_DOWN:
2240 lines = view->height;
2241 case REQ_SCROLL_LINE_DOWN:
2242 if (view->offset + lines > view->lines)
2243 lines = view->lines - view->offset;
2245 if (lines == 0 || view->offset + view->height >= view->lines) {
2246 report("Cannot scroll beyond the last line");
2251 case REQ_SCROLL_PAGE_UP:
2252 lines = view->height;
2253 case REQ_SCROLL_LINE_UP:
2254 if (lines > view->offset)
2255 lines = view->offset;
2258 report("Cannot scroll beyond the first line");
2266 die("request %d not handled in switch", request);
2269 do_scroll_view(view, lines);
2274 move_view(struct view *view, enum request request)
2276 int scroll_steps = 0;
2280 case REQ_MOVE_FIRST_LINE:
2281 steps = -view->lineno;
2284 case REQ_MOVE_LAST_LINE:
2285 steps = view->lines - view->lineno - 1;
2288 case REQ_MOVE_PAGE_UP:
2289 steps = view->height > view->lineno
2290 ? -view->lineno : -view->height;
2293 case REQ_MOVE_PAGE_DOWN:
2294 steps = view->lineno + view->height >= view->lines
2295 ? view->lines - view->lineno - 1 : view->height;
2307 die("request %d not handled in switch", request);
2310 if (steps <= 0 && view->lineno == 0) {
2311 report("Cannot move beyond the first line");
2314 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2315 report("Cannot move beyond the last line");
2319 /* Move the current line */
2320 view->lineno += steps;
2321 assert(0 <= view->lineno && view->lineno < view->lines);
2323 /* Check whether the view needs to be scrolled */
2324 if (view->lineno < view->offset ||
2325 view->lineno >= view->offset + view->height) {
2326 scroll_steps = steps;
2327 if (steps < 0 && -steps > view->offset) {
2328 scroll_steps = -view->offset;
2330 } else if (steps > 0) {
2331 if (view->lineno == view->lines - 1 &&
2332 view->lines > view->height) {
2333 scroll_steps = view->lines - view->offset - 1;
2334 if (scroll_steps >= view->height)
2335 scroll_steps -= view->height - 1;
2340 if (!view_is_displayed(view)) {
2341 view->offset += scroll_steps;
2342 assert(0 <= view->offset && view->offset < view->lines);
2343 view->ops->select(view, &view->line[view->lineno]);
2347 /* Repaint the old "current" line if we be scrolling */
2348 if (ABS(steps) < view->height)
2349 draw_view_line(view, view->lineno - steps - view->offset);
2352 do_scroll_view(view, scroll_steps);
2356 /* Draw the current line */
2357 draw_view_line(view, view->lineno - view->offset);
2359 redrawwin(view->win);
2360 wrefresh(view->win);
2369 static void search_view(struct view *view, enum request request);
2372 find_next_line(struct view *view, unsigned long lineno, struct line *line)
2374 assert(view_is_displayed(view));
2376 if (!view->ops->grep(view, line))
2379 if (lineno - view->offset >= view->height) {
2380 view->offset = lineno;
2381 view->lineno = lineno;
2385 unsigned long old_lineno = view->lineno - view->offset;
2387 view->lineno = lineno;
2388 draw_view_line(view, old_lineno);
2390 draw_view_line(view, view->lineno - view->offset);
2391 redrawwin(view->win);
2392 wrefresh(view->win);
2395 report("Line %ld matches '%s'", lineno + 1, view->grep);
2400 find_next(struct view *view, enum request request)
2402 unsigned long lineno = view->lineno;
2407 report("No previous search");
2409 search_view(view, request);
2419 case REQ_SEARCH_BACK:
2428 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2429 lineno += direction;
2431 /* Note, lineno is unsigned long so will wrap around in which case it
2432 * will become bigger than view->lines. */
2433 for (; lineno < view->lines; lineno += direction) {
2434 struct line *line = &view->line[lineno];
2436 if (find_next_line(view, lineno, line))
2440 report("No match found for '%s'", view->grep);
2444 search_view(struct view *view, enum request request)
2449 regfree(view->regex);
2452 view->regex = calloc(1, sizeof(*view->regex));
2457 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2458 if (regex_err != 0) {
2459 char buf[SIZEOF_STR] = "unknown error";
2461 regerror(regex_err, view->regex, buf, sizeof(buf));
2462 report("Search failed: %s", buf);
2466 string_copy(view->grep, opt_search);
2468 find_next(view, request);
2472 * Incremental updating
2476 reset_view(struct view *view)
2480 for (i = 0; i < view->lines; i++)
2481 free(view->line[i].data);
2488 view->line_size = 0;
2489 view->line_alloc = 0;
2494 free_argv(const char *argv[])
2498 for (argc = 0; argv[argc]; argc++)
2499 free((void *) argv[argc]);
2503 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2505 char buf[SIZEOF_STR];
2507 bool noreplace = flags == FORMAT_NONE;
2509 free_argv(dst_argv);
2511 for (argc = 0; src_argv[argc]; argc++) {
2512 const char *arg = src_argv[argc];
2516 char *next = strstr(arg, "%(");
2517 int len = next - arg;
2520 if (!next || noreplace) {
2521 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2526 } else if (!prefixcmp(next, "%(directory)")) {
2529 } else if (!prefixcmp(next, "%(file)")) {
2532 } else if (!prefixcmp(next, "%(ref)")) {
2533 value = *opt_ref ? opt_ref : "HEAD";
2535 } else if (!prefixcmp(next, "%(head)")) {
2538 } else if (!prefixcmp(next, "%(commit)")) {
2541 } else if (!prefixcmp(next, "%(blob)")) {
2545 report("Unknown replacement: `%s`", next);
2549 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2552 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2555 dst_argv[argc] = strdup(buf);
2556 if (!dst_argv[argc])
2560 dst_argv[argc] = NULL;
2562 return src_argv[argc] == NULL;
2566 end_update(struct view *view, bool force)
2570 while (!view->ops->read(view, NULL))
2573 set_nonblocking_input(FALSE);
2575 kill_io(view->pipe);
2576 done_io(view->pipe);
2581 setup_update(struct view *view, const char *vid)
2583 set_nonblocking_input(TRUE);
2585 string_copy_rev(view->vid, vid);
2586 view->pipe = &view->io;
2587 view->start_time = time(NULL);
2591 prepare_update(struct view *view, const char *argv[], const char *dir,
2592 enum format_flags flags)
2595 end_update(view, TRUE);
2596 return init_io_rd(&view->io, argv, dir, flags);
2600 prepare_update_file(struct view *view, const char *name)
2603 end_update(view, TRUE);
2604 return io_open(&view->io, name);
2608 begin_update(struct view *view, bool refresh)
2611 if (!start_io(&view->io))
2615 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2618 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2621 /* Put the current ref_* value to the view title ref
2622 * member. This is needed by the blob view. Most other
2623 * views sets it automatically after loading because the
2624 * first line is a commit line. */
2625 string_copy_rev(view->ref, view->id);
2628 setup_update(view, view->id);
2633 #define ITEM_CHUNK_SIZE 256
2635 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2637 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2638 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2640 if (mem == NULL || num_chunks != num_chunks_new) {
2641 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2642 mem = realloc(mem, *size * item_size);
2648 static struct line *
2649 realloc_lines(struct view *view, size_t line_size)
2651 size_t alloc = view->line_alloc;
2652 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2653 sizeof(*view->line));
2659 view->line_alloc = alloc;
2660 view->line_size = line_size;
2665 update_view(struct view *view)
2667 char out_buffer[BUFSIZ * 2];
2669 /* The number of lines to read. If too low it will cause too much
2670 * redrawing (and possible flickering), if too high responsiveness
2672 unsigned long lines = view->height;
2673 int redraw_from = -1;
2678 /* Only redraw if lines are visible. */
2679 if (view->offset + view->height >= view->lines)
2680 redraw_from = view->lines - view->offset;
2682 /* FIXME: This is probably not perfect for backgrounded views. */
2683 if (!realloc_lines(view, view->lines + lines))
2686 while ((line = io_get(view->pipe, '\n', TRUE))) {
2687 size_t linelen = strlen(line);
2689 if (opt_iconv != ICONV_NONE) {
2690 ICONV_CONST char *inbuf = line;
2691 size_t inlen = linelen;
2693 char *outbuf = out_buffer;
2694 size_t outlen = sizeof(out_buffer);
2698 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2699 if (ret != (size_t) -1) {
2701 linelen = strlen(out_buffer);
2705 if (!view->ops->read(view, line))
2715 lines = view->lines;
2716 for (digits = 0; lines; digits++)
2719 /* Keep the displayed view in sync with line number scaling. */
2720 if (digits != view->digits) {
2721 view->digits = digits;
2726 if (io_error(view->pipe)) {
2727 report("Failed to read: %s", io_strerror(view->pipe));
2728 end_update(view, TRUE);
2730 } else if (io_eof(view->pipe)) {
2732 end_update(view, FALSE);
2735 if (!view_is_displayed(view))
2738 if (view == VIEW(REQ_VIEW_TREE)) {
2739 /* Clear the view and redraw everything since the tree sorting
2740 * might have rearranged things. */
2743 } else if (redraw_from >= 0) {
2744 /* If this is an incremental update, redraw the previous line
2745 * since for commits some members could have changed when
2746 * loading the main view. */
2747 if (redraw_from > 0)
2750 /* Since revision graph visualization requires knowledge
2751 * about the parent commit, it causes a further one-off
2752 * needed to be redrawn for incremental updates. */
2753 if (redraw_from > 0 && opt_rev_graph)
2756 /* Incrementally draw avoids flickering. */
2757 redraw_view_from(view, redraw_from);
2760 if (view == VIEW(REQ_VIEW_BLAME))
2761 redraw_view_dirty(view);
2763 /* Update the title _after_ the redraw so that if the redraw picks up a
2764 * commit reference in view->ref it'll be available here. */
2765 update_view_title(view);
2769 report("Allocation failure");
2770 end_update(view, TRUE);
2774 static struct line *
2775 add_line_data(struct view *view, void *data, enum line_type type)
2777 struct line *line = &view->line[view->lines++];
2779 memset(line, 0, sizeof(*line));
2786 static struct line *
2787 add_line_text(struct view *view, const char *text, enum line_type type)
2789 char *data = text ? strdup(text) : NULL;
2791 return data ? add_line_data(view, data, type) : NULL;
2800 OPEN_DEFAULT = 0, /* Use default view switching. */
2801 OPEN_SPLIT = 1, /* Split current view. */
2802 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2803 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2804 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2805 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2806 OPEN_PREPARED = 32, /* Open already prepared command. */
2810 open_view(struct view *prev, enum request request, enum open_flags flags)
2812 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2813 bool split = !!(flags & OPEN_SPLIT);
2814 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2815 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2816 struct view *view = VIEW(request);
2817 int nviews = displayed_views();
2818 struct view *base_view = display[0];
2820 if (view == prev && nviews == 1 && !reload) {
2821 report("Already in %s view", view->name);
2825 if (view->git_dir && !opt_git_dir[0]) {
2826 report("The %s view is disabled in pager view", view->name);
2834 } else if (!nomaximize) {
2835 /* Maximize the current view. */
2836 memset(display, 0, sizeof(display));
2838 display[current_view] = view;
2841 /* Resize the view when switching between split- and full-screen,
2842 * or when switching between two different full-screen views. */
2843 if (nviews != displayed_views() ||
2844 (nviews == 1 && base_view != display[0]))
2848 end_update(view, TRUE);
2850 if (view->ops->open) {
2851 if (!view->ops->open(view)) {
2852 report("Failed to load %s view", view->name);
2856 } else if ((reload || strcmp(view->vid, view->id)) &&
2857 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2858 report("Failed to load %s view", view->name);
2862 if (split && prev->lineno - prev->offset >= prev->height) {
2863 /* Take the title line into account. */
2864 int lines = prev->lineno - prev->offset - prev->height + 1;
2866 /* Scroll the view that was split if the current line is
2867 * outside the new limited view. */
2868 do_scroll_view(prev, lines);
2871 if (prev && view != prev) {
2872 if (split && !backgrounded) {
2873 /* "Blur" the previous view. */
2874 update_view_title(prev);
2877 view->parent = prev;
2880 if (view->pipe && view->lines == 0) {
2881 /* Clear the old view and let the incremental updating refill
2885 } else if (view_is_displayed(view)) {
2890 /* If the view is backgrounded the above calls to report()
2891 * won't redraw the view title. */
2893 update_view_title(view);
2897 open_external_viewer(const char *argv[], const char *dir)
2899 def_prog_mode(); /* save current tty modes */
2900 endwin(); /* restore original tty modes */
2901 run_io_fg(argv, dir);
2902 fprintf(stderr, "Press Enter to continue");
2909 open_mergetool(const char *file)
2911 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
2913 open_external_viewer(mergetool_argv, NULL);
2917 open_editor(bool from_root, const char *file)
2919 const char *editor_argv[] = { "vi", file, NULL };
2922 editor = getenv("GIT_EDITOR");
2923 if (!editor && *opt_editor)
2924 editor = opt_editor;
2926 editor = getenv("VISUAL");
2928 editor = getenv("EDITOR");
2932 editor_argv[0] = editor;
2933 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
2937 open_run_request(enum request request)
2939 struct run_request *req = get_run_request(request);
2940 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
2943 report("Unknown run request");
2947 if (format_argv(argv, req->argv, FORMAT_ALL))
2948 open_external_viewer(argv, NULL);
2953 * User request switch noodle
2957 view_driver(struct view *view, enum request request)
2961 if (request == REQ_NONE) {
2966 if (request > REQ_NONE) {
2967 open_run_request(request);
2968 /* FIXME: When all views can refresh always do this. */
2969 if (view == VIEW(REQ_VIEW_STATUS) ||
2970 view == VIEW(REQ_VIEW_MAIN) ||
2971 view == VIEW(REQ_VIEW_LOG) ||
2972 view == VIEW(REQ_VIEW_STAGE))
2973 request = REQ_REFRESH;
2978 if (view && view->lines) {
2979 request = view->ops->request(view, request, &view->line[view->lineno]);
2980 if (request == REQ_NONE)
2987 case REQ_MOVE_PAGE_UP:
2988 case REQ_MOVE_PAGE_DOWN:
2989 case REQ_MOVE_FIRST_LINE:
2990 case REQ_MOVE_LAST_LINE:
2991 move_view(view, request);
2994 case REQ_SCROLL_LINE_DOWN:
2995 case REQ_SCROLL_LINE_UP:
2996 case REQ_SCROLL_PAGE_DOWN:
2997 case REQ_SCROLL_PAGE_UP:
2998 scroll_view(view, request);
3001 case REQ_VIEW_BLAME:
3003 report("No file chosen, press %s to open tree view",
3004 get_key(REQ_VIEW_TREE));
3007 open_view(view, request, OPEN_DEFAULT);
3012 report("No file chosen, press %s to open tree view",
3013 get_key(REQ_VIEW_TREE));
3016 open_view(view, request, OPEN_DEFAULT);
3019 case REQ_VIEW_PAGER:
3020 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3021 report("No pager content, press %s to run command from prompt",
3022 get_key(REQ_PROMPT));
3025 open_view(view, request, OPEN_DEFAULT);
3028 case REQ_VIEW_STAGE:
3029 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3030 report("No stage content, press %s to open the status view and choose file",
3031 get_key(REQ_VIEW_STATUS));
3034 open_view(view, request, OPEN_DEFAULT);
3037 case REQ_VIEW_STATUS:
3038 if (opt_is_inside_work_tree == FALSE) {
3039 report("The status view requires a working tree");
3042 open_view(view, request, OPEN_DEFAULT);
3050 open_view(view, request, OPEN_DEFAULT);
3055 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3057 if ((view == VIEW(REQ_VIEW_DIFF) &&
3058 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3059 (view == VIEW(REQ_VIEW_DIFF) &&
3060 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3061 (view == VIEW(REQ_VIEW_STAGE) &&
3062 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3063 (view == VIEW(REQ_VIEW_BLOB) &&
3064 view->parent == VIEW(REQ_VIEW_TREE))) {
3067 view = view->parent;
3068 line = view->lineno;
3069 move_view(view, request);
3070 if (view_is_displayed(view))
3071 update_view_title(view);
3072 if (line != view->lineno)
3073 view->ops->request(view, REQ_ENTER,
3074 &view->line[view->lineno]);
3077 move_view(view, request);
3083 int nviews = displayed_views();
3084 int next_view = (current_view + 1) % nviews;
3086 if (next_view == current_view) {
3087 report("Only one view is displayed");
3091 current_view = next_view;
3092 /* Blur out the title of the previous view. */
3093 update_view_title(view);
3098 report("Refreshing is not yet supported for the %s view", view->name);
3102 if (displayed_views() == 2)
3103 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3106 case REQ_TOGGLE_LINENO:
3107 opt_line_number = !opt_line_number;
3111 case REQ_TOGGLE_DATE:
3112 opt_date = !opt_date;
3116 case REQ_TOGGLE_AUTHOR:
3117 opt_author = !opt_author;
3121 case REQ_TOGGLE_REV_GRAPH:
3122 opt_rev_graph = !opt_rev_graph;
3126 case REQ_TOGGLE_REFS:
3127 opt_show_refs = !opt_show_refs;
3132 case REQ_SEARCH_BACK:
3133 search_view(view, request);
3138 find_next(view, request);
3141 case REQ_STOP_LOADING:
3142 for (i = 0; i < ARRAY_SIZE(views); i++) {
3145 report("Stopped loading the %s view", view->name),
3146 end_update(view, TRUE);
3150 case REQ_SHOW_VERSION:
3151 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3154 case REQ_SCREEN_RESIZE:
3157 case REQ_SCREEN_REDRAW:
3162 report("Nothing to edit");
3166 report("Nothing to enter");
3169 case REQ_VIEW_CLOSE:
3170 /* XXX: Mark closed views by letting view->parent point to the
3171 * view itself. Parents to closed view should never be
3174 view->parent->parent != view->parent) {
3175 memset(display, 0, sizeof(display));
3177 display[current_view] = view->parent;
3178 view->parent = view;
3189 report("Unknown key, press 'h' for help");
3202 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3204 char *text = line->data;
3206 if (opt_line_number && draw_lineno(view, lineno))
3209 draw_text(view, line->type, text, TRUE);
3214 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3216 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3217 char refbuf[SIZEOF_STR];
3220 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3221 ref = chomp_string(refbuf);
3226 /* This is the only fatal call, since it can "corrupt" the buffer. */
3227 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3234 add_pager_refs(struct view *view, struct line *line)
3236 char buf[SIZEOF_STR];
3237 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3239 size_t bufpos = 0, refpos = 0;
3240 const char *sep = "Refs: ";
3241 bool is_tag = FALSE;
3243 assert(line->type == LINE_COMMIT);
3245 refs = get_refs(commit_id);
3247 if (view == VIEW(REQ_VIEW_DIFF))
3248 goto try_add_describe_ref;
3253 struct ref *ref = refs[refpos];
3254 const char *fmt = ref->tag ? "%s[%s]" :
3255 ref->remote ? "%s<%s>" : "%s%s";
3257 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3262 } while (refs[refpos++]->next);
3264 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3265 try_add_describe_ref:
3266 /* Add <tag>-g<commit_id> "fake" reference. */
3267 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3274 if (!realloc_lines(view, view->line_size + 1))
3277 add_line_text(view, buf, LINE_PP_REFS);
3281 pager_read(struct view *view, char *data)
3288 line = add_line_text(view, data, get_line_type(data));
3292 if (line->type == LINE_COMMIT &&
3293 (view == VIEW(REQ_VIEW_DIFF) ||
3294 view == VIEW(REQ_VIEW_LOG)))
3295 add_pager_refs(view, line);
3301 pager_request(struct view *view, enum request request, struct line *line)
3305 if (request != REQ_ENTER)
3308 if (line->type == LINE_COMMIT &&
3309 (view == VIEW(REQ_VIEW_LOG) ||
3310 view == VIEW(REQ_VIEW_PAGER))) {
3311 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3315 /* Always scroll the view even if it was split. That way
3316 * you can use Enter to scroll through the log view and
3317 * split open each commit diff. */
3318 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3320 /* FIXME: A minor workaround. Scrolling the view will call report("")
3321 * but if we are scrolling a non-current view this won't properly
3322 * update the view title. */
3324 update_view_title(view);
3330 pager_grep(struct view *view, struct line *line)
3333 char *text = line->data;
3338 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3345 pager_select(struct view *view, struct line *line)
3347 if (line->type == LINE_COMMIT) {
3348 char *text = (char *)line->data + STRING_SIZE("commit ");
3350 if (view != VIEW(REQ_VIEW_PAGER))
3351 string_copy_rev(view->ref, text);
3352 string_copy_rev(ref_commit, text);
3356 static struct view_ops pager_ops = {
3367 static const char *log_argv[SIZEOF_ARG] = {
3368 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3372 log_request(struct view *view, enum request request, struct line *line)
3377 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3380 return pager_request(view, request, line);
3384 static struct view_ops log_ops = {
3395 static const char *diff_argv[SIZEOF_ARG] = {
3396 "git", "show", "--pretty=fuller", "--no-color", "--root",
3397 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3400 static struct view_ops diff_ops = {
3416 help_open(struct view *view)
3419 int lines = ARRAY_SIZE(req_info) + 2;
3422 if (view->lines > 0)
3425 for (i = 0; i < ARRAY_SIZE(req_info); i++)
3426 if (!req_info[i].request)
3429 lines += run_requests + 1;
3431 view->line = calloc(lines, sizeof(*view->line));
3435 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3437 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3440 if (req_info[i].request == REQ_NONE)
3443 if (!req_info[i].request) {
3444 add_line_text(view, "", LINE_DEFAULT);
3445 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3449 key = get_key(req_info[i].request);
3451 key = "(no key defined)";
3453 if (!string_format(buf, " %-25s %s", key, req_info[i].help))
3456 add_line_text(view, buf, LINE_DEFAULT);
3460 add_line_text(view, "", LINE_DEFAULT);
3461 add_line_text(view, "External commands:", LINE_DEFAULT);
3464 for (i = 0; i < run_requests; i++) {
3465 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3467 char cmd[SIZEOF_STR];
3474 key = get_key_name(req->key);
3476 key = "(no key defined)";
3478 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3479 if (!string_format_from(cmd, &bufpos, "%s%s",
3480 argc ? " " : "", req->argv[argc]))
3483 if (!string_format(buf, " %-10s %-14s `%s`",
3484 keymap_table[req->keymap].name, key, cmd))
3487 add_line_text(view, buf, LINE_DEFAULT);
3493 static struct view_ops help_ops = {
3509 struct tree_stack_entry {
3510 struct tree_stack_entry *prev; /* Entry below this in the stack */
3511 unsigned long lineno; /* Line number to restore */
3512 char *name; /* Position of name in opt_path */
3515 /* The top of the path stack. */
3516 static struct tree_stack_entry *tree_stack = NULL;
3517 unsigned long tree_lineno = 0;
3520 pop_tree_stack_entry(void)
3522 struct tree_stack_entry *entry = tree_stack;
3524 tree_lineno = entry->lineno;
3526 tree_stack = entry->prev;
3531 push_tree_stack_entry(const char *name, unsigned long lineno)
3533 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3534 size_t pathlen = strlen(opt_path);
3539 entry->prev = tree_stack;
3540 entry->name = opt_path + pathlen;
3543 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3544 pop_tree_stack_entry();
3548 /* Move the current line to the first tree entry. */
3550 entry->lineno = lineno;
3553 /* Parse output from git-ls-tree(1):
3555 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3556 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3557 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3558 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3561 #define SIZEOF_TREE_ATTR \
3562 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3564 #define TREE_UP_FORMAT "040000 tree %s\t.."
3567 tree_compare_entry(enum line_type type1, const char *name1,
3568 enum line_type type2, const char *name2)
3570 if (type1 != type2) {
3571 if (type1 == LINE_TREE_DIR)
3576 return strcmp(name1, name2);
3580 tree_path(struct line *line)
3582 const char *path = line->data;
3584 return path + SIZEOF_TREE_ATTR;
3588 tree_read(struct view *view, char *text)
3590 size_t textlen = text ? strlen(text) : 0;
3591 char buf[SIZEOF_STR];
3593 enum line_type type;
3594 bool first_read = view->lines == 0;
3598 if (textlen <= SIZEOF_TREE_ATTR)
3601 type = text[STRING_SIZE("100644 ")] == 't'
3602 ? LINE_TREE_DIR : LINE_TREE_FILE;
3605 /* Add path info line */
3606 if (!string_format(buf, "Directory path /%s", opt_path) ||
3607 !realloc_lines(view, view->line_size + 1) ||
3608 !add_line_text(view, buf, LINE_DEFAULT))
3611 /* Insert "link" to parent directory. */
3613 if (!string_format(buf, TREE_UP_FORMAT, view->ref) ||
3614 !realloc_lines(view, view->line_size + 1) ||
3615 !add_line_text(view, buf, LINE_TREE_DIR))
3620 /* Strip the path part ... */
3622 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3623 size_t striplen = strlen(opt_path);
3624 char *path = text + SIZEOF_TREE_ATTR;
3626 if (pathlen > striplen)
3627 memmove(path, path + striplen,
3628 pathlen - striplen + 1);
3631 /* Skip "Directory ..." and ".." line. */
3632 for (pos = 1 + !!*opt_path; pos < view->lines; pos++) {
3633 struct line *line = &view->line[pos];
3634 const char *path1 = tree_path(line);
3635 char *path2 = text + SIZEOF_TREE_ATTR;
3636 int cmp = tree_compare_entry(line->type, path1, type, path2);
3641 text = strdup(text);
3645 if (view->lines > pos)
3646 memmove(&view->line[pos + 1], &view->line[pos],
3647 (view->lines - pos) * sizeof(*line));
3649 line = &view->line[pos];
3656 if (!add_line_text(view, text, type))
3659 if (tree_lineno > view->lineno) {
3660 view->lineno = tree_lineno;
3668 tree_request(struct view *view, enum request request, struct line *line)
3670 enum open_flags flags;
3673 case REQ_VIEW_BLAME:
3674 if (line->type != LINE_TREE_FILE) {
3675 report("Blame only supported for files");
3679 string_copy(opt_ref, view->vid);
3683 if (line->type != LINE_TREE_FILE) {
3684 report("Edit only supported for files");
3685 } else if (!is_head_commit(view->vid)) {
3686 report("Edit only supported for files in the current work tree");
3688 open_editor(TRUE, opt_file);
3692 case REQ_TREE_PARENT:
3694 /* quit view if at top of tree */
3695 return REQ_VIEW_CLOSE;
3698 line = &view->line[1];
3708 /* Cleanup the stack if the tree view is at a different tree. */
3709 while (!*opt_path && tree_stack)
3710 pop_tree_stack_entry();
3712 switch (line->type) {
3714 /* Depending on whether it is a subdir or parent (updir?) link
3715 * mangle the path buffer. */
3716 if (line == &view->line[1] && *opt_path) {
3717 pop_tree_stack_entry();
3720 const char *basename = tree_path(line);
3722 push_tree_stack_entry(basename, view->lineno);
3725 /* Trees and subtrees share the same ID, so they are not not
3726 * unique like blobs. */
3727 flags = OPEN_RELOAD;
3728 request = REQ_VIEW_TREE;
3731 case LINE_TREE_FILE:
3732 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
3733 request = REQ_VIEW_BLOB;
3740 open_view(view, request, flags);
3741 if (request == REQ_VIEW_TREE) {
3742 view->lineno = tree_lineno;
3749 tree_select(struct view *view, struct line *line)
3751 char *text = (char *)line->data + STRING_SIZE("100644 blob ");
3753 if (line->type == LINE_TREE_FILE) {
3754 string_copy_rev(ref_blob, text);
3755 string_format(opt_file, "%s%s", opt_path, tree_path(line));
3757 } else if (line->type != LINE_TREE_DIR) {
3761 string_copy_rev(view->ref, text);
3764 static const char *tree_argv[SIZEOF_ARG] = {
3765 "git", "ls-tree", "%(commit)", "%(directory)", NULL
3768 static struct view_ops tree_ops = {
3780 blob_read(struct view *view, char *line)
3784 return add_line_text(view, line, LINE_DEFAULT) != NULL;
3787 static const char *blob_argv[SIZEOF_ARG] = {
3788 "git", "cat-file", "blob", "%(blob)", NULL
3791 static struct view_ops blob_ops = {
3805 * Loading the blame view is a two phase job:
3807 * 1. File content is read either using opt_file from the
3808 * filesystem or using git-cat-file.
3809 * 2. Then blame information is incrementally added by
3810 * reading output from git-blame.
3813 static const char *blame_head_argv[] = {
3814 "git", "blame", "--incremental", "--", "%(file)", NULL
3817 static const char *blame_ref_argv[] = {
3818 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
3821 static const char *blame_cat_file_argv[] = {
3822 "git", "cat-file", "blob", "%(ref):%(file)", NULL
3825 struct blame_commit {
3826 char id[SIZEOF_REV]; /* SHA1 ID. */
3827 char title[128]; /* First line of the commit message. */
3828 char author[75]; /* Author of the commit. */
3829 struct tm time; /* Date from the author ident. */
3830 char filename[128]; /* Name of file. */
3834 struct blame_commit *commit;
3839 blame_open(struct view *view)
3841 if (*opt_ref || !io_open(&view->io, opt_file)) {
3842 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
3846 setup_update(view, opt_file);
3847 string_format(view->ref, "%s ...", opt_file);
3852 static struct blame_commit *
3853 get_blame_commit(struct view *view, const char *id)
3857 for (i = 0; i < view->lines; i++) {
3858 struct blame *blame = view->line[i].data;
3863 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
3864 return blame->commit;
3868 struct blame_commit *commit = calloc(1, sizeof(*commit));
3871 string_ncopy(commit->id, id, SIZEOF_REV);
3877 parse_number(const char **posref, size_t *number, size_t min, size_t max)
3879 const char *pos = *posref;
3882 pos = strchr(pos + 1, ' ');
3883 if (!pos || !isdigit(pos[1]))
3885 *number = atoi(pos + 1);
3886 if (*number < min || *number > max)
3893 static struct blame_commit *
3894 parse_blame_commit(struct view *view, const char *text, int *blamed)
3896 struct blame_commit *commit;
3897 struct blame *blame;
3898 const char *pos = text + SIZEOF_REV - 1;
3902 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
3905 if (!parse_number(&pos, &lineno, 1, view->lines) ||
3906 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
3909 commit = get_blame_commit(view, text);
3915 struct line *line = &view->line[lineno + group - 1];
3918 blame->commit = commit;
3926 blame_read_file(struct view *view, const char *line, bool *read_file)
3929 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
3932 if (view->lines == 0 && !view->parent)
3933 die("No blame exist for %s", view->vid);
3935 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
3936 report("Failed to load blame data");
3940 done_io(view->pipe);
3946 size_t linelen = strlen(line);
3947 struct blame *blame = malloc(sizeof(*blame) + linelen);
3949 blame->commit = NULL;
3950 strncpy(blame->text, line, linelen);
3951 blame->text[linelen] = 0;
3952 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
3957 match_blame_header(const char *name, char **line)
3959 size_t namelen = strlen(name);
3960 bool matched = !strncmp(name, *line, namelen);
3969 blame_read(struct view *view, char *line)
3971 static struct blame_commit *commit = NULL;
3972 static int blamed = 0;
3973 static time_t author_time;
3974 static bool read_file = TRUE;
3977 return blame_read_file(view, line, &read_file);
3984 string_format(view->ref, "%s", view->vid);
3985 if (view_is_displayed(view)) {
3986 update_view_title(view);
3987 redraw_view_from(view, 0);
3993 commit = parse_blame_commit(view, line, &blamed);
3994 string_format(view->ref, "%s %2d%%", view->vid,
3995 blamed * 100 / view->lines);
3997 } else if (match_blame_header("author ", &line)) {
3998 string_ncopy(commit->author, line, strlen(line));
4000 } else if (match_blame_header("author-time ", &line)) {
4001 author_time = (time_t) atol(line);
4003 } else if (match_blame_header("author-tz ", &line)) {
4006 tz = ('0' - line[1]) * 60 * 60 * 10;
4007 tz += ('0' - line[2]) * 60 * 60;
4008 tz += ('0' - line[3]) * 60;
4009 tz += ('0' - line[4]) * 60;
4015 gmtime_r(&author_time, &commit->time);
4017 } else if (match_blame_header("summary ", &line)) {
4018 string_ncopy(commit->title, line, strlen(line));
4020 } else if (match_blame_header("filename ", &line)) {
4021 string_ncopy(commit->filename, line, strlen(line));
4029 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4031 struct blame *blame = line->data;
4032 struct tm *time = NULL;
4033 const char *id = NULL, *author = NULL;
4035 if (blame->commit && *blame->commit->filename) {
4036 id = blame->commit->id;
4037 author = blame->commit->author;
4038 time = &blame->commit->time;
4041 if (opt_date && draw_date(view, time))
4045 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
4048 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4051 if (draw_lineno(view, lineno))
4054 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4059 blame_request(struct view *view, enum request request, struct line *line)
4061 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4062 struct blame *blame = line->data;
4065 case REQ_VIEW_BLAME:
4066 if (!blame->commit || !strcmp(blame->commit->id, NULL_ID)) {
4067 report("Commit ID unknown");
4070 string_copy(opt_ref, blame->commit->id);
4071 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4075 if (!blame->commit) {
4076 report("No commit loaded yet");
4080 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4081 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4084 if (!strcmp(blame->commit->id, NULL_ID)) {
4085 struct view *diff = VIEW(REQ_VIEW_DIFF);
4086 const char *diff_index_argv[] = {
4087 "git", "diff-index", "--root", "--cached",
4088 "--patch-with-stat", "-C", "-M",
4089 "HEAD", "--", view->vid, NULL
4092 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4093 report("Failed to allocate diff command");
4096 flags |= OPEN_PREPARED;
4099 open_view(view, REQ_VIEW_DIFF, flags);
4110 blame_grep(struct view *view, struct line *line)
4112 struct blame *blame = line->data;
4113 struct blame_commit *commit = blame->commit;
4116 #define MATCH(text, on) \
4117 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4120 char buf[DATE_COLS + 1];
4122 if (MATCH(commit->title, 1) ||
4123 MATCH(commit->author, opt_author) ||
4124 MATCH(commit->id, opt_date))
4127 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4132 return MATCH(blame->text, 1);
4138 blame_select(struct view *view, struct line *line)
4140 struct blame *blame = line->data;
4141 struct blame_commit *commit = blame->commit;
4146 if (!strcmp(commit->id, NULL_ID))
4147 string_ncopy(ref_commit, "HEAD", 4);
4149 string_copy_rev(ref_commit, commit->id);
4152 static struct view_ops blame_ops = {
4171 char rev[SIZEOF_REV];
4172 char name[SIZEOF_STR];
4176 char rev[SIZEOF_REV];
4177 char name[SIZEOF_STR];
4181 static char status_onbranch[SIZEOF_STR];
4182 static struct status stage_status;
4183 static enum line_type stage_line_type;
4184 static size_t stage_chunks;
4185 static int *stage_chunk;
4187 /* This should work even for the "On branch" line. */
4189 status_has_none(struct view *view, struct line *line)
4191 return line < view->line + view->lines && !line[1].data;
4194 /* Get fields from the diff line:
4195 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4198 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4200 const char *old_mode = buf + 1;
4201 const char *new_mode = buf + 8;
4202 const char *old_rev = buf + 15;
4203 const char *new_rev = buf + 56;
4204 const char *status = buf + 97;
4207 old_mode[-1] != ':' ||
4208 new_mode[-1] != ' ' ||
4209 old_rev[-1] != ' ' ||
4210 new_rev[-1] != ' ' ||
4214 file->status = *status;
4216 string_copy_rev(file->old.rev, old_rev);
4217 string_copy_rev(file->new.rev, new_rev);
4219 file->old.mode = strtoul(old_mode, NULL, 8);
4220 file->new.mode = strtoul(new_mode, NULL, 8);
4222 file->old.name[0] = file->new.name[0] = 0;
4228 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4230 struct status *file = NULL;
4231 struct status *unmerged = NULL;
4235 if (!run_io(&io, argv, NULL, IO_RD))
4238 add_line_data(view, NULL, type);
4240 while ((buf = io_get(&io, 0, TRUE))) {
4242 if (!realloc_lines(view, view->line_size + 1))
4245 file = calloc(1, sizeof(*file));
4249 add_line_data(view, file, type);
4252 /* Parse diff info part. */
4254 file->status = status;
4256 string_copy(file->old.rev, NULL_ID);
4258 } else if (!file->status) {
4259 if (!status_get_diff(file, buf, strlen(buf)))
4262 buf = io_get(&io, 0, TRUE);
4266 /* Collapse all 'M'odified entries that follow a
4267 * associated 'U'nmerged entry. */
4268 if (file->status == 'U') {
4271 } else if (unmerged) {
4272 int collapse = !strcmp(buf, unmerged->new.name);
4283 /* Grab the old name for rename/copy. */
4284 if (!*file->old.name &&
4285 (file->status == 'R' || file->status == 'C')) {
4286 string_ncopy(file->old.name, buf, strlen(buf));
4288 buf = io_get(&io, 0, TRUE);
4293 /* git-ls-files just delivers a NUL separated list of
4294 * file names similar to the second half of the
4295 * git-diff-* output. */
4296 string_ncopy(file->new.name, buf, strlen(buf));
4297 if (!*file->old.name)
4298 string_copy(file->old.name, file->new.name);
4302 if (io_error(&io)) {
4308 if (!view->line[view->lines - 1].data)
4309 add_line_data(view, NULL, LINE_STAT_NONE);
4315 /* Don't show unmerged entries in the staged section. */
4316 static const char *status_diff_index_argv[] = {
4317 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4318 "--cached", "-M", "HEAD", NULL
4321 static const char *status_diff_files_argv[] = {
4322 "git", "diff-files", "-z", NULL
4325 static const char *status_list_other_argv[] = {
4326 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4329 static const char *status_list_no_head_argv[] = {
4330 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4333 static const char *update_index_argv[] = {
4334 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4337 /* First parse staged info using git-diff-index(1), then parse unstaged
4338 * info using git-diff-files(1), and finally untracked files using
4339 * git-ls-files(1). */
4341 status_open(struct view *view)
4343 unsigned long prev_lineno = view->lineno;
4347 if (!realloc_lines(view, view->line_size + 7))
4350 add_line_data(view, NULL, LINE_STAT_HEAD);
4351 if (is_initial_commit())
4352 string_copy(status_onbranch, "Initial commit");
4353 else if (!*opt_head)
4354 string_copy(status_onbranch, "Not currently on any branch");
4355 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4358 run_io_bg(update_index_argv);
4360 if (is_initial_commit()) {
4361 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4363 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4367 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4368 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4371 /* If all went well restore the previous line number to stay in
4372 * the context or select a line with something that can be
4374 if (prev_lineno >= view->lines)
4375 prev_lineno = view->lines - 1;
4376 while (prev_lineno < view->lines && !view->line[prev_lineno].data)
4378 while (prev_lineno > 0 && !view->line[prev_lineno].data)
4381 /* If the above fails, always skip the "On branch" line. */
4382 if (prev_lineno < view->lines)
4383 view->lineno = prev_lineno;
4387 if (view->lineno < view->offset)
4388 view->offset = view->lineno;
4389 else if (view->offset + view->height <= view->lineno)
4390 view->offset = view->lineno - view->height + 1;
4396 status_draw(struct view *view, struct line *line, unsigned int lineno)
4398 struct status *status = line->data;
4399 enum line_type type;
4403 switch (line->type) {
4404 case LINE_STAT_STAGED:
4405 type = LINE_STAT_SECTION;
4406 text = "Changes to be committed:";
4409 case LINE_STAT_UNSTAGED:
4410 type = LINE_STAT_SECTION;
4411 text = "Changed but not updated:";
4414 case LINE_STAT_UNTRACKED:
4415 type = LINE_STAT_SECTION;
4416 text = "Untracked files:";
4419 case LINE_STAT_NONE:
4420 type = LINE_DEFAULT;
4421 text = " (no files)";
4424 case LINE_STAT_HEAD:
4425 type = LINE_STAT_HEAD;
4426 text = status_onbranch;
4433 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4435 buf[0] = status->status;
4436 if (draw_text(view, line->type, buf, TRUE))
4438 type = LINE_DEFAULT;
4439 text = status->new.name;
4442 draw_text(view, type, text, TRUE);
4447 status_enter(struct view *view, struct line *line)
4449 struct status *status = line->data;
4450 const char *oldpath = status ? status->old.name : NULL;
4451 /* Diffs for unmerged entries are empty when passing the new
4452 * path, so leave it empty. */
4453 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4455 enum open_flags split;
4456 struct view *stage = VIEW(REQ_VIEW_STAGE);
4458 if (line->type == LINE_STAT_NONE ||
4459 (!status && line[1].type == LINE_STAT_NONE)) {
4460 report("No file to diff");
4464 switch (line->type) {
4465 case LINE_STAT_STAGED:
4466 if (is_initial_commit()) {
4467 const char *no_head_diff_argv[] = {
4468 "git", "diff", "--no-color", "--patch-with-stat",
4469 "--", "/dev/null", newpath, NULL
4472 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4475 const char *index_show_argv[] = {
4476 "git", "diff-index", "--root", "--patch-with-stat",
4477 "-C", "-M", "--cached", "HEAD", "--",
4478 oldpath, newpath, NULL
4481 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4486 info = "Staged changes to %s";
4488 info = "Staged changes";
4491 case LINE_STAT_UNSTAGED:
4493 const char *files_show_argv[] = {
4494 "git", "diff-files", "--root", "--patch-with-stat",
4495 "-C", "-M", "--", oldpath, newpath, NULL
4498 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4501 info = "Unstaged changes to %s";
4503 info = "Unstaged changes";
4506 case LINE_STAT_UNTRACKED:
4508 report("No file to show");
4512 if (!suffixcmp(status->new.name, -1, "/")) {
4513 report("Cannot display a directory");
4517 if (!prepare_update_file(stage, newpath))
4519 info = "Untracked file %s";
4522 case LINE_STAT_HEAD:
4526 die("line type %d not handled in switch", line->type);
4529 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4530 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH | split);
4531 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4533 stage_status = *status;
4535 memset(&stage_status, 0, sizeof(stage_status));
4538 stage_line_type = line->type;
4540 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4547 status_exists(struct status *status, enum line_type type)
4549 struct view *view = VIEW(REQ_VIEW_STATUS);
4552 for (line = view->line; line < view->line + view->lines; line++) {
4553 struct status *pos = line->data;
4555 if (line->type == type && pos &&
4556 !strcmp(status->new.name, pos->new.name))
4565 status_update_prepare(struct io *io, enum line_type type)
4567 const char *staged_argv[] = {
4568 "git", "update-index", "-z", "--index-info", NULL
4570 const char *others_argv[] = {
4571 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4575 case LINE_STAT_STAGED:
4576 return run_io(io, staged_argv, opt_cdup, IO_WR);
4578 case LINE_STAT_UNSTAGED:
4579 return run_io(io, others_argv, opt_cdup, IO_WR);
4581 case LINE_STAT_UNTRACKED:
4582 return run_io(io, others_argv, NULL, IO_WR);
4585 die("line type %d not handled in switch", type);
4591 status_update_write(struct io *io, struct status *status, enum line_type type)
4593 char buf[SIZEOF_STR];
4597 case LINE_STAT_STAGED:
4598 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4601 status->old.name, 0))
4605 case LINE_STAT_UNSTAGED:
4606 case LINE_STAT_UNTRACKED:
4607 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4612 die("line type %d not handled in switch", type);
4615 return io_write(io, buf, bufsize);
4619 status_update_file(struct status *status, enum line_type type)
4624 if (!status_update_prepare(&io, type))
4627 result = status_update_write(&io, status, type);
4633 status_update_files(struct view *view, struct line *line)
4637 struct line *pos = view->line + view->lines;
4641 if (!status_update_prepare(&io, line->type))
4644 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4647 for (file = 0, done = 0; result && file < files; line++, file++) {
4648 int almost_done = file * 100 / files;
4650 if (almost_done > done) {
4652 string_format(view->ref, "updating file %u of %u (%d%% done)",
4654 update_view_title(view);
4656 result = status_update_write(&io, line->data, line->type);
4664 status_update(struct view *view)
4666 struct line *line = &view->line[view->lineno];
4668 assert(view->lines);
4671 /* This should work even for the "On branch" line. */
4672 if (line < view->line + view->lines && !line[1].data) {
4673 report("Nothing to update");
4677 if (!status_update_files(view, line + 1)) {
4678 report("Failed to update file status");
4682 } else if (!status_update_file(line->data, line->type)) {
4683 report("Failed to update file status");
4691 status_revert(struct status *status, enum line_type type, bool has_none)
4693 if (!status || type != LINE_STAT_UNSTAGED) {
4694 if (type == LINE_STAT_STAGED) {
4695 report("Cannot revert changes to staged files");
4696 } else if (type == LINE_STAT_UNTRACKED) {
4697 report("Cannot revert changes to untracked files");
4698 } else if (has_none) {
4699 report("Nothing to revert");
4701 report("Cannot revert changes to multiple files");
4706 const char *checkout_argv[] = {
4707 "git", "checkout", "--", status->old.name, NULL
4710 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
4712 return run_io_fg(checkout_argv, opt_cdup);
4717 status_request(struct view *view, enum request request, struct line *line)
4719 struct status *status = line->data;
4722 case REQ_STATUS_UPDATE:
4723 if (!status_update(view))
4727 case REQ_STATUS_REVERT:
4728 if (!status_revert(status, line->type, status_has_none(view, line)))
4732 case REQ_STATUS_MERGE:
4733 if (!status || status->status != 'U') {
4734 report("Merging only possible for files with unmerged status ('U').");
4737 open_mergetool(status->new.name);
4743 if (status->status == 'D') {
4744 report("File has been deleted.");
4748 open_editor(status->status != '?', status->new.name);
4751 case REQ_VIEW_BLAME:
4753 string_copy(opt_file, status->new.name);
4759 /* After returning the status view has been split to
4760 * show the stage view. No further reloading is
4762 status_enter(view, line);
4766 /* Simply reload the view. */
4773 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
4779 status_select(struct view *view, struct line *line)
4781 struct status *status = line->data;
4782 char file[SIZEOF_STR] = "all files";
4786 if (status && !string_format(file, "'%s'", status->new.name))
4789 if (!status && line[1].type == LINE_STAT_NONE)
4792 switch (line->type) {
4793 case LINE_STAT_STAGED:
4794 text = "Press %s to unstage %s for commit";
4797 case LINE_STAT_UNSTAGED:
4798 text = "Press %s to stage %s for commit";
4801 case LINE_STAT_UNTRACKED:
4802 text = "Press %s to stage %s for addition";
4805 case LINE_STAT_HEAD:
4806 case LINE_STAT_NONE:
4807 text = "Nothing to update";
4811 die("line type %d not handled in switch", line->type);
4814 if (status && status->status == 'U') {
4815 text = "Press %s to resolve conflict in %s";
4816 key = get_key(REQ_STATUS_MERGE);
4819 key = get_key(REQ_STATUS_UPDATE);
4822 string_format(view->ref, text, key, file);
4826 status_grep(struct view *view, struct line *line)
4828 struct status *status = line->data;
4829 enum { S_STATUS, S_NAME, S_END } state;
4836 for (state = S_STATUS; state < S_END; state++) {
4840 case S_NAME: text = status->new.name; break;
4842 buf[0] = status->status;
4850 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4857 static struct view_ops status_ops = {
4870 stage_diff_write(struct io *io, struct line *line, struct line *end)
4872 while (line < end) {
4873 if (!io_write(io, line->data, strlen(line->data)) ||
4874 !io_write(io, "\n", 1))
4877 if (line->type == LINE_DIFF_CHUNK ||
4878 line->type == LINE_DIFF_HEADER)
4885 static struct line *
4886 stage_diff_find(struct view *view, struct line *line, enum line_type type)
4888 for (; view->line < line; line--)
4889 if (line->type == type)
4896 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
4898 const char *apply_argv[SIZEOF_ARG] = {
4899 "git", "apply", "--whitespace=nowarn", NULL
4901 struct line *diff_hdr;
4905 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
4910 apply_argv[argc++] = "--cached";
4911 if (revert || stage_line_type == LINE_STAT_STAGED)
4912 apply_argv[argc++] = "-R";
4913 apply_argv[argc++] = "-";
4914 apply_argv[argc++] = NULL;
4915 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
4918 if (!stage_diff_write(&io, diff_hdr, chunk) ||
4919 !stage_diff_write(&io, chunk, view->line + view->lines))
4923 run_io_bg(update_index_argv);
4925 return chunk ? TRUE : FALSE;
4929 stage_update(struct view *view, struct line *line)
4931 struct line *chunk = NULL;
4933 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
4934 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4937 if (!stage_apply_chunk(view, chunk, FALSE)) {
4938 report("Failed to apply chunk");
4942 } else if (!stage_status.status) {
4943 view = VIEW(REQ_VIEW_STATUS);
4945 for (line = view->line; line < view->line + view->lines; line++)
4946 if (line->type == stage_line_type)
4949 if (!status_update_files(view, line + 1)) {
4950 report("Failed to update files");
4954 } else if (!status_update_file(&stage_status, stage_line_type)) {
4955 report("Failed to update file");
4963 stage_revert(struct view *view, struct line *line)
4965 struct line *chunk = NULL;
4967 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
4968 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
4971 if (!prompt_yesno("Are you sure you want to revert changes?"))
4974 if (!stage_apply_chunk(view, chunk, TRUE)) {
4975 report("Failed to revert chunk");
4981 return status_revert(stage_status.status ? &stage_status : NULL,
4982 stage_line_type, FALSE);
4988 stage_next(struct view *view, struct line *line)
4992 if (!stage_chunks) {
4993 static size_t alloc = 0;
4996 for (line = view->line; line < view->line + view->lines; line++) {
4997 if (line->type != LINE_DIFF_CHUNK)
5000 tmp = realloc_items(stage_chunk, &alloc,
5001 stage_chunks, sizeof(*tmp));
5003 report("Allocation failure");
5008 stage_chunk[stage_chunks++] = line - view->line;
5012 for (i = 0; i < stage_chunks; i++) {
5013 if (stage_chunk[i] > view->lineno) {
5014 do_scroll_view(view, stage_chunk[i] - view->lineno);
5015 report("Chunk %d of %d", i + 1, stage_chunks);
5020 report("No next chunk found");
5024 stage_request(struct view *view, enum request request, struct line *line)
5027 case REQ_STATUS_UPDATE:
5028 if (!stage_update(view, line))
5032 case REQ_STATUS_REVERT:
5033 if (!stage_revert(view, line))
5037 case REQ_STAGE_NEXT:
5038 if (stage_line_type == LINE_STAT_UNTRACKED) {
5039 report("File is untracked; press %s to add",
5040 get_key(REQ_STATUS_UPDATE));
5043 stage_next(view, line);
5047 if (!stage_status.new.name[0])
5049 if (stage_status.status == 'D') {
5050 report("File has been deleted.");
5054 open_editor(stage_status.status != '?', stage_status.new.name);
5058 /* Reload everything ... */
5061 case REQ_VIEW_BLAME:
5062 if (stage_status.new.name[0]) {
5063 string_copy(opt_file, stage_status.new.name);
5069 return pager_request(view, request, line);
5075 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5077 /* Check whether the staged entry still exists, and close the
5078 * stage view if it doesn't. */
5079 if (!status_exists(&stage_status, stage_line_type))
5080 return REQ_VIEW_CLOSE;
5082 if (stage_line_type == LINE_STAT_UNTRACKED) {
5083 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5084 report("Cannot display a directory");
5088 if (!prepare_update_file(view, stage_status.new.name)) {
5089 report("Failed to open file: %s", strerror(errno));
5093 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5098 static struct view_ops stage_ops = {
5115 char id[SIZEOF_REV]; /* SHA1 ID. */
5116 char title[128]; /* First line of the commit message. */
5117 char author[75]; /* Author of the commit. */
5118 struct tm time; /* Date from the author ident. */
5119 struct ref **refs; /* Repository references. */
5120 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5121 size_t graph_size; /* The width of the graph array. */
5122 bool has_parents; /* Rewritten --parents seen. */
5125 /* Size of rev graph with no "padding" columns */
5126 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5129 struct rev_graph *prev, *next, *parents;
5130 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5132 struct commit *commit;
5134 unsigned int boundary:1;
5137 /* Parents of the commit being visualized. */
5138 static struct rev_graph graph_parents[4];
5140 /* The current stack of revisions on the graph. */
5141 static struct rev_graph graph_stacks[4] = {
5142 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5143 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5144 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5145 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5149 graph_parent_is_merge(struct rev_graph *graph)
5151 return graph->parents->size > 1;
5155 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5157 struct commit *commit = graph->commit;
5159 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5160 commit->graph[commit->graph_size++] = symbol;
5164 clear_rev_graph(struct rev_graph *graph)
5166 graph->boundary = 0;
5167 graph->size = graph->pos = 0;
5168 graph->commit = NULL;
5169 memset(graph->parents, 0, sizeof(*graph->parents));
5173 done_rev_graph(struct rev_graph *graph)
5175 if (graph_parent_is_merge(graph) &&
5176 graph->pos < graph->size - 1 &&
5177 graph->next->size == graph->size + graph->parents->size - 1) {
5178 size_t i = graph->pos + graph->parents->size - 1;
5180 graph->commit->graph_size = i * 2;
5181 while (i < graph->next->size - 1) {
5182 append_to_rev_graph(graph, ' ');
5183 append_to_rev_graph(graph, '\\');
5188 clear_rev_graph(graph);
5192 push_rev_graph(struct rev_graph *graph, const char *parent)
5196 /* "Collapse" duplicate parents lines.
5198 * FIXME: This needs to also update update the drawn graph but
5199 * for now it just serves as a method for pruning graph lines. */
5200 for (i = 0; i < graph->size; i++)
5201 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5204 if (graph->size < SIZEOF_REVITEMS) {
5205 string_copy_rev(graph->rev[graph->size++], parent);
5210 get_rev_graph_symbol(struct rev_graph *graph)
5214 if (graph->boundary)
5215 symbol = REVGRAPH_BOUND;
5216 else if (graph->parents->size == 0)
5217 symbol = REVGRAPH_INIT;
5218 else if (graph_parent_is_merge(graph))
5219 symbol = REVGRAPH_MERGE;
5220 else if (graph->pos >= graph->size)
5221 symbol = REVGRAPH_BRANCH;
5223 symbol = REVGRAPH_COMMIT;
5229 draw_rev_graph(struct rev_graph *graph)
5232 chtype separator, line;
5234 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5235 static struct rev_filler fillers[] = {
5241 chtype symbol = get_rev_graph_symbol(graph);
5242 struct rev_filler *filler;
5245 if (opt_line_graphics)
5246 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5248 filler = &fillers[DEFAULT];
5250 for (i = 0; i < graph->pos; i++) {
5251 append_to_rev_graph(graph, filler->line);
5252 if (graph_parent_is_merge(graph->prev) &&
5253 graph->prev->pos == i)
5254 filler = &fillers[RSHARP];
5256 append_to_rev_graph(graph, filler->separator);
5259 /* Place the symbol for this revision. */
5260 append_to_rev_graph(graph, symbol);
5262 if (graph->prev->size > graph->size)
5263 filler = &fillers[RDIAG];
5265 filler = &fillers[DEFAULT];
5269 for (; i < graph->size; i++) {
5270 append_to_rev_graph(graph, filler->separator);
5271 append_to_rev_graph(graph, filler->line);
5272 if (graph_parent_is_merge(graph->prev) &&
5273 i < graph->prev->pos + graph->parents->size)
5274 filler = &fillers[RSHARP];
5275 if (graph->prev->size > graph->size)
5276 filler = &fillers[LDIAG];
5279 if (graph->prev->size > graph->size) {
5280 append_to_rev_graph(graph, filler->separator);
5281 if (filler->line != ' ')
5282 append_to_rev_graph(graph, filler->line);
5286 /* Prepare the next rev graph */
5288 prepare_rev_graph(struct rev_graph *graph)
5292 /* First, traverse all lines of revisions up to the active one. */
5293 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5294 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5297 push_rev_graph(graph->next, graph->rev[graph->pos]);
5300 /* Interleave the new revision parent(s). */
5301 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5302 push_rev_graph(graph->next, graph->parents->rev[i]);
5304 /* Lastly, put any remaining revisions. */
5305 for (i = graph->pos + 1; i < graph->size; i++)
5306 push_rev_graph(graph->next, graph->rev[i]);
5310 update_rev_graph(struct rev_graph *graph)
5312 /* If this is the finalizing update ... */
5314 prepare_rev_graph(graph);
5316 /* Graph visualization needs a one rev look-ahead,
5317 * so the first update doesn't visualize anything. */
5318 if (!graph->prev->commit)
5321 draw_rev_graph(graph->prev);
5322 done_rev_graph(graph->prev->prev);
5330 static const char *main_argv[SIZEOF_ARG] = {
5331 "git", "log", "--no-color", "--pretty=raw", "--parents",
5332 "--topo-order", "%(head)", NULL
5336 main_draw(struct view *view, struct line *line, unsigned int lineno)
5338 struct commit *commit = line->data;
5340 if (!*commit->author)
5343 if (opt_date && draw_date(view, &commit->time))
5347 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5350 if (opt_rev_graph && commit->graph_size &&
5351 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5354 if (opt_show_refs && commit->refs) {
5358 enum line_type type;
5360 if (commit->refs[i]->head)
5361 type = LINE_MAIN_HEAD;
5362 else if (commit->refs[i]->ltag)
5363 type = LINE_MAIN_LOCAL_TAG;
5364 else if (commit->refs[i]->tag)
5365 type = LINE_MAIN_TAG;
5366 else if (commit->refs[i]->tracked)
5367 type = LINE_MAIN_TRACKED;
5368 else if (commit->refs[i]->remote)
5369 type = LINE_MAIN_REMOTE;
5371 type = LINE_MAIN_REF;
5373 if (draw_text(view, type, "[", TRUE) ||
5374 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5375 draw_text(view, type, "]", TRUE))
5378 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5380 } while (commit->refs[i++]->next);
5383 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5387 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5389 main_read(struct view *view, char *line)
5391 static struct rev_graph *graph = graph_stacks;
5392 enum line_type type;
5393 struct commit *commit;
5398 if (!view->lines && !view->parent)
5399 die("No revisions match the given arguments.");
5400 if (view->lines > 0) {
5401 commit = view->line[view->lines - 1].data;
5402 if (!*commit->author) {
5405 graph->commit = NULL;
5408 update_rev_graph(graph);
5410 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5411 clear_rev_graph(&graph_stacks[i]);
5415 type = get_line_type(line);
5416 if (type == LINE_COMMIT) {
5417 commit = calloc(1, sizeof(struct commit));
5421 line += STRING_SIZE("commit ");
5423 graph->boundary = 1;
5427 string_copy_rev(commit->id, line);
5428 commit->refs = get_refs(commit->id);
5429 graph->commit = commit;
5430 add_line_data(view, commit, LINE_MAIN_COMMIT);
5432 while ((line = strchr(line, ' '))) {
5434 push_rev_graph(graph->parents, line);
5435 commit->has_parents = TRUE;
5442 commit = view->line[view->lines - 1].data;
5446 if (commit->has_parents)
5448 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5453 /* Parse author lines where the name may be empty:
5454 * author <email@address.tld> 1138474660 +0100
5456 char *ident = line + STRING_SIZE("author ");
5457 char *nameend = strchr(ident, '<');
5458 char *emailend = strchr(ident, '>');
5460 if (!nameend || !emailend)
5463 update_rev_graph(graph);
5464 graph = graph->next;
5466 *nameend = *emailend = 0;
5467 ident = chomp_string(ident);
5469 ident = chomp_string(nameend + 1);
5474 string_ncopy(commit->author, ident, strlen(ident));
5476 /* Parse epoch and timezone */
5477 if (emailend[1] == ' ') {
5478 char *secs = emailend + 2;
5479 char *zone = strchr(secs, ' ');
5480 time_t time = (time_t) atol(secs);
5482 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
5486 tz = ('0' - zone[1]) * 60 * 60 * 10;
5487 tz += ('0' - zone[2]) * 60 * 60;
5488 tz += ('0' - zone[3]) * 60;
5489 tz += ('0' - zone[4]) * 60;
5497 gmtime_r(&time, &commit->time);
5502 /* Fill in the commit title if it has not already been set. */
5503 if (commit->title[0])
5506 /* Require titles to start with a non-space character at the
5507 * offset used by git log. */
5508 if (strncmp(line, " ", 4))
5511 /* Well, if the title starts with a whitespace character,
5512 * try to be forgiving. Otherwise we end up with no title. */
5513 while (isspace(*line))
5517 /* FIXME: More graceful handling of titles; append "..." to
5518 * shortened titles, etc. */
5520 string_ncopy(commit->title, line, strlen(line));
5527 main_request(struct view *view, enum request request, struct line *line)
5529 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5533 open_view(view, REQ_VIEW_DIFF, flags);
5537 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5547 grep_refs(struct ref **refs, regex_t *regex)
5555 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5557 } while (refs[i++]->next);
5563 main_grep(struct view *view, struct line *line)
5565 struct commit *commit = line->data;
5566 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5567 char buf[DATE_COLS + 1];
5570 for (state = S_TITLE; state < S_END; state++) {
5574 case S_TITLE: text = commit->title; break;
5578 text = commit->author;
5583 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5590 if (grep_refs(commit->refs, view->regex) == TRUE)
5597 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5605 main_select(struct view *view, struct line *line)
5607 struct commit *commit = line->data;
5609 string_copy_rev(view->ref, commit->id);
5610 string_copy_rev(ref_commit, view->ref);
5613 static struct view_ops main_ops = {
5626 * Unicode / UTF-8 handling
5628 * NOTE: Much of the following code for dealing with unicode is derived from
5629 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5630 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5633 /* I've (over)annotated a lot of code snippets because I am not entirely
5634 * confident that the approach taken by this small UTF-8 interface is correct.
5638 unicode_width(unsigned long c)
5641 (c <= 0x115f /* Hangul Jamo */
5644 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5646 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5647 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5648 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5649 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5650 || (c >= 0xffe0 && c <= 0xffe6)
5651 || (c >= 0x20000 && c <= 0x2fffd)
5652 || (c >= 0x30000 && c <= 0x3fffd)))
5656 return opt_tab_size;
5661 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5662 * Illegal bytes are set one. */
5663 static const unsigned char utf8_bytes[256] = {
5664 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,
5665 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,
5666 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,
5667 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,
5668 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,
5669 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,
5670 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,
5671 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,
5674 /* Decode UTF-8 multi-byte representation into a unicode character. */
5675 static inline unsigned long
5676 utf8_to_unicode(const char *string, size_t length)
5678 unsigned long unicode;
5682 unicode = string[0];
5685 unicode = (string[0] & 0x1f) << 6;
5686 unicode += (string[1] & 0x3f);
5689 unicode = (string[0] & 0x0f) << 12;
5690 unicode += ((string[1] & 0x3f) << 6);
5691 unicode += (string[2] & 0x3f);
5694 unicode = (string[0] & 0x0f) << 18;
5695 unicode += ((string[1] & 0x3f) << 12);
5696 unicode += ((string[2] & 0x3f) << 6);
5697 unicode += (string[3] & 0x3f);
5700 unicode = (string[0] & 0x0f) << 24;
5701 unicode += ((string[1] & 0x3f) << 18);
5702 unicode += ((string[2] & 0x3f) << 12);
5703 unicode += ((string[3] & 0x3f) << 6);
5704 unicode += (string[4] & 0x3f);
5707 unicode = (string[0] & 0x01) << 30;
5708 unicode += ((string[1] & 0x3f) << 24);
5709 unicode += ((string[2] & 0x3f) << 18);
5710 unicode += ((string[3] & 0x3f) << 12);
5711 unicode += ((string[4] & 0x3f) << 6);
5712 unicode += (string[5] & 0x3f);
5715 die("Invalid unicode length");
5718 /* Invalid characters could return the special 0xfffd value but NUL
5719 * should be just as good. */
5720 return unicode > 0xffff ? 0 : unicode;
5723 /* Calculates how much of string can be shown within the given maximum width
5724 * and sets trimmed parameter to non-zero value if all of string could not be
5725 * shown. If the reserve flag is TRUE, it will reserve at least one
5726 * trailing character, which can be useful when drawing a delimiter.
5728 * Returns the number of bytes to output from string to satisfy max_width. */
5730 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
5732 const char *start = string;
5733 const char *end = strchr(string, '\0');
5734 unsigned char last_bytes = 0;
5735 size_t last_ucwidth = 0;
5740 while (string < end) {
5741 int c = *(unsigned char *) string;
5742 unsigned char bytes = utf8_bytes[c];
5744 unsigned long unicode;
5746 if (string + bytes > end)
5749 /* Change representation to figure out whether
5750 * it is a single- or double-width character. */
5752 unicode = utf8_to_unicode(string, bytes);
5753 /* FIXME: Graceful handling of invalid unicode character. */
5757 ucwidth = unicode_width(unicode);
5759 if (*width > max_width) {
5762 if (reserve && *width == max_width) {
5763 string -= last_bytes;
5764 *width -= last_ucwidth;
5771 last_ucwidth = ucwidth;
5774 return string - start;
5782 /* Whether or not the curses interface has been initialized. */
5783 static bool cursed = FALSE;
5785 /* The status window is used for polling keystrokes. */
5786 static WINDOW *status_win;
5788 static bool status_empty = TRUE;
5790 /* Update status and title window. */
5792 report(const char *msg, ...)
5794 struct view *view = display[current_view];
5800 char buf[SIZEOF_STR];
5803 va_start(args, msg);
5804 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
5805 buf[sizeof(buf) - 1] = 0;
5806 buf[sizeof(buf) - 2] = '.';
5807 buf[sizeof(buf) - 3] = '.';
5808 buf[sizeof(buf) - 4] = '.';
5814 if (!status_empty || *msg) {
5817 va_start(args, msg);
5819 wmove(status_win, 0, 0);
5821 vwprintw(status_win, msg, args);
5822 status_empty = FALSE;
5824 status_empty = TRUE;
5826 wclrtoeol(status_win);
5827 wrefresh(status_win);
5832 update_view_title(view);
5833 update_display_cursor(view);
5836 /* Controls when nodelay should be in effect when polling user input. */
5838 set_nonblocking_input(bool loading)
5840 static unsigned int loading_views;
5842 if ((loading == FALSE && loading_views-- == 1) ||
5843 (loading == TRUE && loading_views++ == 0))
5844 nodelay(status_win, loading);
5852 /* Initialize the curses library */
5853 if (isatty(STDIN_FILENO)) {
5854 cursed = !!initscr();
5857 /* Leave stdin and stdout alone when acting as a pager. */
5858 opt_tty = fopen("/dev/tty", "r+");
5860 die("Failed to open /dev/tty");
5861 cursed = !!newterm(NULL, opt_tty, opt_tty);
5865 die("Failed to initialize curses");
5867 nonl(); /* Tell curses not to do NL->CR/NL on output */
5868 cbreak(); /* Take input chars one at a time, no wait for \n */
5869 noecho(); /* Don't echo input */
5870 leaveok(stdscr, TRUE);
5875 getmaxyx(stdscr, y, x);
5876 status_win = newwin(1, 0, y - 1, 0);
5878 die("Failed to create status window");
5880 /* Enable keyboard mapping */
5881 keypad(status_win, TRUE);
5882 wbkgdset(status_win, get_line_attr(LINE_STATUS));
5884 TABSIZE = opt_tab_size;
5885 if (opt_line_graphics) {
5886 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
5891 prompt_yesno(const char *prompt)
5893 enum { WAIT, STOP, CANCEL } status = WAIT;
5894 bool answer = FALSE;
5896 while (status == WAIT) {
5902 foreach_view (view, i)
5907 mvwprintw(status_win, 0, 0, "%s [Yy]/[Nn]", prompt);
5908 wclrtoeol(status_win);
5910 /* Refresh, accept single keystroke of input */
5911 key = wgetch(status_win);
5935 /* Clear the status window */
5936 status_empty = FALSE;
5943 read_prompt(const char *prompt)
5945 enum { READING, STOP, CANCEL } status = READING;
5946 static char buf[SIZEOF_STR];
5949 while (status == READING) {
5955 foreach_view (view, i)
5960 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
5961 wclrtoeol(status_win);
5963 /* Refresh, accept single keystroke of input */
5964 key = wgetch(status_win);
5969 status = pos ? STOP : CANCEL;
5987 if (pos >= sizeof(buf)) {
5988 report("Input string too long");
5993 buf[pos++] = (char) key;
5997 /* Clear the status window */
5998 status_empty = FALSE;
6001 if (status == CANCEL)
6010 * Repository properties
6014 git_properties(const char **argv, const char *separators,
6015 int (*read_property)(char *, size_t, char *, size_t))
6019 if (init_io_rd(&io, argv, NULL, FORMAT_NONE))
6020 return read_properties(&io, separators, read_property);
6024 static struct ref *refs = NULL;
6025 static size_t refs_alloc = 0;
6026 static size_t refs_size = 0;
6028 /* Id <-> ref store */
6029 static struct ref ***id_refs = NULL;
6030 static size_t id_refs_alloc = 0;
6031 static size_t id_refs_size = 0;
6034 compare_refs(const void *ref1_, const void *ref2_)
6036 const struct ref *ref1 = *(const struct ref **)ref1_;
6037 const struct ref *ref2 = *(const struct ref **)ref2_;
6039 if (ref1->tag != ref2->tag)
6040 return ref2->tag - ref1->tag;
6041 if (ref1->ltag != ref2->ltag)
6042 return ref2->ltag - ref2->ltag;
6043 if (ref1->head != ref2->head)
6044 return ref2->head - ref1->head;
6045 if (ref1->tracked != ref2->tracked)
6046 return ref2->tracked - ref1->tracked;
6047 if (ref1->remote != ref2->remote)
6048 return ref2->remote - ref1->remote;
6049 return strcmp(ref1->name, ref2->name);
6052 static struct ref **
6053 get_refs(const char *id)
6055 struct ref ***tmp_id_refs;
6056 struct ref **ref_list = NULL;
6057 size_t ref_list_alloc = 0;
6058 size_t ref_list_size = 0;
6061 for (i = 0; i < id_refs_size; i++)
6062 if (!strcmp(id, id_refs[i][0]->id))
6065 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6070 id_refs = tmp_id_refs;
6072 for (i = 0; i < refs_size; i++) {
6075 if (strcmp(id, refs[i].id))
6078 tmp = realloc_items(ref_list, &ref_list_alloc,
6079 ref_list_size + 1, sizeof(*ref_list));
6087 ref_list[ref_list_size] = &refs[i];
6088 /* XXX: The properties of the commit chains ensures that we can
6089 * safely modify the shared ref. The repo references will
6090 * always be similar for the same id. */
6091 ref_list[ref_list_size]->next = 1;
6097 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6098 ref_list[ref_list_size - 1]->next = 0;
6099 id_refs[id_refs_size++] = ref_list;
6106 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6111 bool remote = FALSE;
6112 bool tracked = FALSE;
6113 bool check_replace = FALSE;
6116 if (!prefixcmp(name, "refs/tags/")) {
6117 if (!suffixcmp(name, namelen, "^{}")) {
6120 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6121 check_replace = TRUE;
6127 namelen -= STRING_SIZE("refs/tags/");
6128 name += STRING_SIZE("refs/tags/");
6130 } else if (!prefixcmp(name, "refs/remotes/")) {
6132 namelen -= STRING_SIZE("refs/remotes/");
6133 name += STRING_SIZE("refs/remotes/");
6134 tracked = !strcmp(opt_remote, name);
6136 } else if (!prefixcmp(name, "refs/heads/")) {
6137 namelen -= STRING_SIZE("refs/heads/");
6138 name += STRING_SIZE("refs/heads/");
6139 head = !strncmp(opt_head, name, namelen);
6141 } else if (!strcmp(name, "HEAD")) {
6142 string_ncopy(opt_head_rev, id, idlen);
6146 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6147 /* it's an annotated tag, replace the previous sha1 with the
6148 * resolved commit id; relies on the fact git-ls-remote lists
6149 * the commit id of an annotated tag right before the commit id
6151 refs[refs_size - 1].ltag = ltag;
6152 string_copy_rev(refs[refs_size - 1].id, id);
6156 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6160 ref = &refs[refs_size++];
6161 ref->name = malloc(namelen + 1);
6165 strncpy(ref->name, name, namelen);
6166 ref->name[namelen] = 0;
6170 ref->remote = remote;
6171 ref->tracked = tracked;
6172 string_copy_rev(ref->id, id);
6180 static const char *ls_remote_argv[SIZEOF_ARG] = {
6181 "git", "ls-remote", ".", NULL
6183 static bool init = FALSE;
6186 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6193 while (refs_size > 0)
6194 free(refs[--refs_size].name);
6195 while (id_refs_size > 0)
6196 free(id_refs[--id_refs_size]);
6198 return git_properties(ls_remote_argv, "\t", read_ref);
6202 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6204 if (!strcmp(name, "i18n.commitencoding"))
6205 string_ncopy(opt_encoding, value, valuelen);
6207 if (!strcmp(name, "core.editor"))
6208 string_ncopy(opt_editor, value, valuelen);
6210 /* branch.<head>.remote */
6212 !strncmp(name, "branch.", 7) &&
6213 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6214 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6215 string_ncopy(opt_remote, value, valuelen);
6217 if (*opt_head && *opt_remote &&
6218 !strncmp(name, "branch.", 7) &&
6219 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6220 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6221 size_t from = strlen(opt_remote);
6223 if (!prefixcmp(value, "refs/heads/")) {
6224 value += STRING_SIZE("refs/heads/");
6225 valuelen -= STRING_SIZE("refs/heads/");
6228 if (!string_format_from(opt_remote, &from, "/%s", value))
6236 load_git_config(void)
6238 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6240 return git_properties(config_list_argv, "=", read_repo_config_option);
6244 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6246 if (!opt_git_dir[0]) {
6247 string_ncopy(opt_git_dir, name, namelen);
6249 } else if (opt_is_inside_work_tree == -1) {
6250 /* This can be 3 different values depending on the
6251 * version of git being used. If git-rev-parse does not
6252 * understand --is-inside-work-tree it will simply echo
6253 * the option else either "true" or "false" is printed.
6254 * Default to true for the unknown case. */
6255 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6257 string_ncopy(opt_cdup, name, namelen);
6264 load_repo_info(void)
6266 const char *head_argv[] = {
6267 "git", "symbolic-ref", "HEAD", NULL
6269 const char *rev_parse_argv[] = {
6270 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6274 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6275 chomp_string(opt_head);
6276 if (!prefixcmp(opt_head, "refs/heads/")) {
6277 char *offset = opt_head + STRING_SIZE("refs/heads/");
6279 memmove(opt_head, offset, strlen(offset) + 1);
6283 return git_properties(rev_parse_argv, "=", read_repo_info);
6287 read_properties(struct io *io, const char *separators,
6288 int (*read_property)(char *, size_t, char *, size_t))
6296 while (state == OK && (name = io_get(io, '\n', TRUE))) {
6301 name = chomp_string(name);
6302 namelen = strcspn(name, separators);
6304 if (name[namelen]) {
6306 value = chomp_string(name + namelen + 1);
6307 valuelen = strlen(value);
6314 state = read_property(name, namelen, value, valuelen);
6317 if (state != ERR && io_error(io))
6329 static void __NORETURN
6332 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6338 static void __NORETURN
6339 die(const char *err, ...)
6345 va_start(args, err);
6346 fputs("tig: ", stderr);
6347 vfprintf(stderr, err, args);
6348 fputs("\n", stderr);
6355 warn(const char *msg, ...)
6359 va_start(args, msg);
6360 fputs("tig warning: ", stderr);
6361 vfprintf(stderr, msg, args);
6362 fputs("\n", stderr);
6367 main(int argc, const char *argv[])
6369 const char **run_argv = NULL;
6371 enum request request;
6374 signal(SIGINT, quit);
6376 if (setlocale(LC_ALL, "")) {
6377 char *codeset = nl_langinfo(CODESET);
6379 string_ncopy(opt_codeset, codeset, strlen(codeset));
6382 if (load_repo_info() == ERR)
6383 die("Failed to load repo info.");
6385 if (load_options() == ERR)
6386 die("Failed to load user config.");
6388 if (load_git_config() == ERR)
6389 die("Failed to load repo config.");
6391 request = parse_options(argc, argv, &run_argv);
6392 if (request == REQ_NONE)
6395 /* Require a git repository unless when running in pager mode. */
6396 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6397 die("Not a git repository");
6399 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6402 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6403 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6404 if (opt_iconv == ICONV_NONE)
6405 die("Failed to initialize character set conversion");
6408 if (load_refs() == ERR)
6409 die("Failed to load refs.");
6411 foreach_view (view, i)
6412 argv_from_env(view->ops->argv, view->cmd_env);
6416 if (request == REQ_VIEW_PAGER || run_argv) {
6417 if (request == REQ_VIEW_PAGER)
6418 io_open(&VIEW(request)->io, "");
6419 else if (!prepare_update(VIEW(request), run_argv, NULL, FORMAT_NONE))
6420 die("Failed to format arguments");
6421 open_view(NULL, request, OPEN_PREPARED);
6425 while (view_driver(display[current_view], request)) {
6429 foreach_view (view, i)
6431 view = display[current_view];
6433 /* Refresh, accept single keystroke of input */
6434 key = wgetch(status_win);
6436 /* wgetch() with nodelay() enabled returns ERR when there's no
6443 request = get_keybinding(view->keymap, key);
6445 /* Some low-level request handling. This keeps access to
6446 * status_win restricted. */
6450 char *cmd = read_prompt(":");
6453 struct view *next = VIEW(REQ_VIEW_PAGER);
6454 const char *argv[SIZEOF_ARG] = { "git" };
6457 /* When running random commands, initially show the
6458 * command in the title. However, it maybe later be
6459 * overwritten if a commit line is selected. */
6460 string_ncopy(next->ref, cmd, strlen(cmd));
6462 if (!argv_from_string(argv, &argc, cmd)) {
6463 report("Too many arguments");
6464 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6465 report("Failed to format command");
6467 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6475 case REQ_SEARCH_BACK:
6477 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6478 char *search = read_prompt(prompt);
6481 string_ncopy(opt_search, search, strlen(search));
6486 case REQ_SCREEN_RESIZE:
6490 getmaxyx(stdscr, height, width);
6492 /* Resize the status view and let the view driver take
6493 * care of resizing the displayed views. */
6494 wresize(status_win, 1, width);
6495 mvwin(status_win, height - 1, 0);
6496 wrefresh(status_win);