1 /* Copyright (c) 2006-2009 Jonas Fonseca <fonseca@diku.dk>
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License as
5 * published by the Free Software Foundation; either version 2 of
6 * the License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
19 #define TIG_VERSION "unknown-version"
34 #include <sys/types.h>
37 #include <sys/select.h>
48 /* ncurses(3): Must be defined to have extended wide-character functions. */
49 #define _XOPEN_SOURCE_EXTENDED
51 #ifdef HAVE_NCURSESW_NCURSES_H
52 #include <ncursesw/ncurses.h>
54 #ifdef HAVE_NCURSES_NCURSES_H
55 #include <ncurses/ncurses.h>
62 #define __NORETURN __attribute__((__noreturn__))
67 static void __NORETURN die(const char *err, ...);
68 static void warn(const char *msg, ...);
69 static void report(const char *msg, ...);
70 static void set_nonblocking_input(bool loading);
71 static size_t utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve);
72 static 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;
180 typedef enum input_status (*input_handler)(void *data, char *buf, int c);
182 static char *prompt_input(const char *prompt, input_handler handler, void *data);
183 static bool prompt_yesno(const char *prompt);
190 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
192 if (srclen > dstlen - 1)
195 strncpy(dst, src, srclen);
199 /* Shorthands for safely copying into a fixed buffer. */
201 #define string_copy(dst, src) \
202 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
204 #define string_ncopy(dst, src, srclen) \
205 string_ncopy_do(dst, sizeof(dst), src, srclen)
207 #define string_copy_rev(dst, src) \
208 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
210 #define string_add(dst, from, src) \
211 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
214 chomp_string(char *name)
218 while (isspace(*name))
221 namelen = strlen(name) - 1;
222 while (namelen > 0 && isspace(name[namelen]))
229 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
232 size_t pos = bufpos ? *bufpos : 0;
235 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
241 return pos >= bufsize ? FALSE : TRUE;
244 #define string_format(buf, fmt, args...) \
245 string_nformat(buf, sizeof(buf), NULL, fmt, args)
247 #define string_format_from(buf, from, fmt, args...) \
248 string_nformat(buf, sizeof(buf), from, fmt, args)
251 string_enum_compare(const char *str1, const char *str2, int len)
255 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
257 /* Diff-Header == DIFF_HEADER */
258 for (i = 0; i < len; i++) {
259 if (toupper(str1[i]) == toupper(str2[i]))
262 if (string_enum_sep(str1[i]) &&
263 string_enum_sep(str2[i]))
266 return str1[i] - str2[i];
272 #define prefixcmp(str1, str2) \
273 strncmp(str1, str2, STRING_SIZE(str2))
276 suffixcmp(const char *str, int slen, const char *suffix)
278 size_t len = slen >= 0 ? slen : strlen(str);
279 size_t suffixlen = strlen(suffix);
281 return suffixlen < len ? strcmp(str + len - suffixlen, suffix) : -1;
286 argv_from_string(const char *argv[SIZEOF_ARG], int *argc, char *cmd)
290 while (*cmd && *argc < SIZEOF_ARG && (valuelen = strcspn(cmd, " \t"))) {
291 bool advance = cmd[valuelen] != 0;
294 argv[(*argc)++] = chomp_string(cmd);
295 cmd += valuelen + advance;
298 if (*argc < SIZEOF_ARG)
300 return *argc < SIZEOF_ARG;
304 argv_from_env(const char **argv, const char *name)
306 char *env = argv ? getenv(name) : NULL;
311 if (env && !argv_from_string(argv, &argc, env))
312 die("Too many arguments in the `%s` environment variable", name);
317 * Executing external commands.
321 IO_FD, /* File descriptor based IO. */
322 IO_BG, /* Execute command in the background. */
323 IO_FG, /* Execute command with same std{in,out,err}. */
324 IO_RD, /* Read only fork+exec IO. */
325 IO_WR, /* Write only fork+exec IO. */
326 IO_AP, /* Append fork+exec output to file. */
330 enum io_type type; /* The requested type of pipe. */
331 const char *dir; /* Directory from which to execute. */
332 pid_t pid; /* Pipe for reading or writing. */
333 int pipe; /* Pipe end for reading or writing. */
334 int error; /* Error status. */
335 const char *argv[SIZEOF_ARG]; /* Shell command arguments. */
336 char *buf; /* Read buffer. */
337 size_t bufalloc; /* Allocated buffer size. */
338 size_t bufsize; /* Buffer content size. */
339 char *bufpos; /* Current buffer position. */
340 unsigned int eof:1; /* Has end of file been reached. */
344 reset_io(struct io *io)
348 io->buf = io->bufpos = NULL;
349 io->bufalloc = io->bufsize = 0;
355 init_io(struct io *io, const char *dir, enum io_type type)
363 init_io_rd(struct io *io, const char *argv[], const char *dir,
364 enum format_flags flags)
366 init_io(io, dir, IO_RD);
367 return format_argv(io->argv, argv, flags);
371 io_open(struct io *io, const char *name)
373 init_io(io, NULL, IO_FD);
374 io->pipe = *name ? open(name, O_RDONLY) : STDIN_FILENO;
375 return io->pipe != -1;
379 kill_io(struct io *io)
381 return io->pid == 0 || kill(io->pid, SIGKILL) != -1;
385 done_io(struct io *io)
396 pid_t waiting = waitpid(pid, &status, 0);
401 report("waitpid failed (%s)", strerror(errno));
405 return waiting == pid &&
406 !WIFSIGNALED(status) &&
408 !WEXITSTATUS(status);
415 start_io(struct io *io)
417 int pipefds[2] = { -1, -1 };
419 if (io->type == IO_FD)
422 if ((io->type == IO_RD || io->type == IO_WR) &&
425 else if (io->type == IO_AP)
426 pipefds[1] = io->pipe;
428 if ((io->pid = fork())) {
429 if (pipefds[!(io->type == IO_WR)] != -1)
430 close(pipefds[!(io->type == IO_WR)]);
432 io->pipe = pipefds[!!(io->type == IO_WR)];
437 if (io->type != IO_FG) {
438 int devnull = open("/dev/null", O_RDWR);
439 int readfd = io->type == IO_WR ? pipefds[0] : devnull;
440 int writefd = (io->type == IO_RD || io->type == IO_AP)
441 ? pipefds[1] : devnull;
443 dup2(readfd, STDIN_FILENO);
444 dup2(writefd, STDOUT_FILENO);
445 dup2(devnull, STDERR_FILENO);
448 if (pipefds[0] != -1)
450 if (pipefds[1] != -1)
454 if (io->dir && *io->dir && chdir(io->dir) == -1)
455 die("Failed to change directory: %s", strerror(errno));
457 execvp(io->argv[0], (char *const*) io->argv);
458 die("Failed to execute program: %s", strerror(errno));
461 if (pipefds[!!(io->type == IO_WR)] != -1)
462 close(pipefds[!!(io->type == IO_WR)]);
467 run_io(struct io *io, const char **argv, const char *dir, enum io_type type)
469 init_io(io, dir, type);
470 if (!format_argv(io->argv, argv, FORMAT_NONE))
476 run_io_do(struct io *io)
478 return start_io(io) && done_io(io);
482 run_io_bg(const char **argv)
486 init_io(&io, NULL, IO_BG);
487 if (!format_argv(io.argv, argv, FORMAT_NONE))
489 return run_io_do(&io);
493 run_io_fg(const char **argv, const char *dir)
497 init_io(&io, dir, IO_FG);
498 if (!format_argv(io.argv, argv, FORMAT_NONE))
500 return run_io_do(&io);
504 run_io_append(const char **argv, enum format_flags flags, int fd)
508 init_io(&io, NULL, IO_AP);
510 if (format_argv(io.argv, argv, flags))
511 return run_io_do(&io);
517 run_io_rd(struct io *io, const char **argv, enum format_flags flags)
519 return init_io_rd(io, argv, NULL, flags) && start_io(io);
523 io_eof(struct io *io)
529 io_error(struct io *io)
535 io_strerror(struct io *io)
537 return strerror(io->error);
541 io_can_read(struct io *io)
543 struct timeval tv = { 0, 500 };
547 FD_SET(io->pipe, &fds);
549 return select(io->pipe + 1, &fds, NULL, NULL, &tv) > 0;
553 io_read(struct io *io, void *buf, size_t bufsize)
556 ssize_t readsize = read(io->pipe, buf, bufsize);
558 if (readsize < 0 && (errno == EAGAIN || errno == EINTR))
560 else if (readsize == -1)
562 else if (readsize == 0)
569 io_get(struct io *io, int c, bool can_read)
575 io->buf = io->bufpos = malloc(BUFSIZ);
578 io->bufalloc = BUFSIZ;
583 if (io->bufsize > 0) {
584 eol = memchr(io->bufpos, c, io->bufsize);
586 char *line = io->bufpos;
589 io->bufpos = eol + 1;
590 io->bufsize -= io->bufpos - line;
597 io->bufpos[io->bufsize] = 0;
607 if (io->bufsize > 0 && io->bufpos > io->buf)
608 memmove(io->buf, io->bufpos, io->bufsize);
610 io->bufpos = io->buf;
611 readsize = io_read(io, io->buf + io->bufsize, io->bufalloc - io->bufsize);
614 io->bufsize += readsize;
619 io_write(struct io *io, const void *buf, size_t bufsize)
623 while (!io_error(io) && written < bufsize) {
626 size = write(io->pipe, buf + written, bufsize - written);
627 if (size < 0 && (errno == EAGAIN || errno == EINTR))
635 return written == bufsize;
639 run_io_buf(const char **argv, char buf[], size_t bufsize)
644 if (!run_io_rd(&io, argv, FORMAT_NONE))
647 io.buf = io.bufpos = buf;
648 io.bufalloc = bufsize;
649 error = !io_get(&io, '\n', TRUE) && io_error(&io);
652 return done_io(&io) || error;
655 static int read_properties(struct io *io, const char *separators, int (*read)(char *, size_t, char *, size_t));
662 /* XXX: Keep the view request first and in sync with views[]. */ \
663 REQ_GROUP("View switching") \
664 REQ_(VIEW_MAIN, "Show main view"), \
665 REQ_(VIEW_DIFF, "Show diff view"), \
666 REQ_(VIEW_LOG, "Show log view"), \
667 REQ_(VIEW_TREE, "Show tree view"), \
668 REQ_(VIEW_BLOB, "Show blob view"), \
669 REQ_(VIEW_BLAME, "Show blame view"), \
670 REQ_(VIEW_HELP, "Show help page"), \
671 REQ_(VIEW_PAGER, "Show pager view"), \
672 REQ_(VIEW_STATUS, "Show status view"), \
673 REQ_(VIEW_STAGE, "Show stage view"), \
675 REQ_GROUP("View manipulation") \
676 REQ_(ENTER, "Enter current line and scroll"), \
677 REQ_(NEXT, "Move to next"), \
678 REQ_(PREVIOUS, "Move to previous"), \
679 REQ_(PARENT, "Move to parent"), \
680 REQ_(VIEW_NEXT, "Move focus to next view"), \
681 REQ_(REFRESH, "Reload and refresh"), \
682 REQ_(MAXIMIZE, "Maximize the current view"), \
683 REQ_(VIEW_CLOSE, "Close the current view"), \
684 REQ_(QUIT, "Close all views and quit"), \
686 REQ_GROUP("View specific requests") \
687 REQ_(STATUS_UPDATE, "Update file status"), \
688 REQ_(STATUS_REVERT, "Revert file changes"), \
689 REQ_(STATUS_MERGE, "Merge file using external tool"), \
690 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
692 REQ_GROUP("Cursor navigation") \
693 REQ_(MOVE_UP, "Move cursor one line up"), \
694 REQ_(MOVE_DOWN, "Move cursor one line down"), \
695 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
696 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
697 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
698 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
700 REQ_GROUP("Scrolling") \
701 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
702 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
703 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
704 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
706 REQ_GROUP("Searching") \
707 REQ_(SEARCH, "Search the view"), \
708 REQ_(SEARCH_BACK, "Search backwards in the view"), \
709 REQ_(FIND_NEXT, "Find next search match"), \
710 REQ_(FIND_PREV, "Find previous search match"), \
712 REQ_GROUP("Option manipulation") \
713 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
714 REQ_(TOGGLE_DATE, "Toggle date display"), \
715 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
716 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
717 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
720 REQ_(PROMPT, "Bring up the prompt"), \
721 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
722 REQ_(SHOW_VERSION, "Show version information"), \
723 REQ_(STOP_LOADING, "Stop all loading views"), \
724 REQ_(EDIT, "Open in editor"), \
725 REQ_(NONE, "Do nothing")
728 /* User action requests. */
730 #define REQ_GROUP(help)
731 #define REQ_(req, help) REQ_##req
733 /* Offset all requests to avoid conflicts with ncurses getch values. */
734 REQ_OFFSET = KEY_MAX + 1,
741 struct request_info {
742 enum request request;
748 static struct request_info req_info[] = {
749 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
750 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
757 get_request(const char *name)
759 int namelen = strlen(name);
762 for (i = 0; i < ARRAY_SIZE(req_info); i++)
763 if (req_info[i].namelen == namelen &&
764 !string_enum_compare(req_info[i].name, name, namelen))
765 return req_info[i].request;
775 static const char usage[] =
776 "tig " TIG_VERSION " (" __DATE__ ")\n"
778 "Usage: tig [options] [revs] [--] [paths]\n"
779 " or: tig show [options] [revs] [--] [paths]\n"
780 " or: tig blame [rev] path\n"
782 " or: tig < [git command output]\n"
785 " -v, --version Show version and exit\n"
786 " -h, --help Show help message and exit";
788 /* Option and state variables. */
789 static bool opt_date = TRUE;
790 static bool opt_author = TRUE;
791 static bool opt_line_number = FALSE;
792 static bool opt_line_graphics = TRUE;
793 static bool opt_rev_graph = FALSE;
794 static bool opt_show_refs = TRUE;
795 static int opt_num_interval = NUMBER_INTERVAL;
796 static int opt_tab_size = TAB_SIZE;
797 static int opt_author_cols = AUTHOR_COLS-1;
798 static char opt_path[SIZEOF_STR] = "";
799 static char opt_file[SIZEOF_STR] = "";
800 static char opt_ref[SIZEOF_REF] = "";
801 static char opt_head[SIZEOF_REF] = "";
802 static char opt_head_rev[SIZEOF_REV] = "";
803 static char opt_remote[SIZEOF_REF] = "";
804 static char opt_encoding[20] = "UTF-8";
805 static bool opt_utf8 = TRUE;
806 static char opt_codeset[20] = "UTF-8";
807 static iconv_t opt_iconv = ICONV_NONE;
808 static char opt_search[SIZEOF_STR] = "";
809 static char opt_cdup[SIZEOF_STR] = "";
810 static char opt_prefix[SIZEOF_STR] = "";
811 static char opt_git_dir[SIZEOF_STR] = "";
812 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
813 static char opt_editor[SIZEOF_STR] = "";
814 static FILE *opt_tty = NULL;
816 #define is_initial_commit() (!*opt_head_rev)
817 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || !strcmp(opt_head_rev, (rev)))
820 parse_options(int argc, const char *argv[], const char ***run_argv)
822 enum request request = REQ_VIEW_MAIN;
823 const char *subcommand;
824 bool seen_dashdash = FALSE;
825 /* XXX: This is vulnerable to the user overriding options
826 * required for the main view parser. */
827 static const char *custom_argv[SIZEOF_ARG] = {
828 "git", "log", "--no-color", "--pretty=raw", "--parents",
833 if (!isatty(STDIN_FILENO))
834 return REQ_VIEW_PAGER;
837 return REQ_VIEW_MAIN;
839 subcommand = argv[1];
840 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
841 if (!strcmp(subcommand, "-S"))
842 warn("`-S' has been deprecated; use `tig status' instead");
844 warn("ignoring arguments after `%s'", subcommand);
845 return REQ_VIEW_STATUS;
847 } else if (!strcmp(subcommand, "blame")) {
848 if (argc <= 2 || argc > 4)
849 die("invalid number of options to blame\n\n%s", usage);
853 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
857 string_ncopy(opt_file, argv[i], strlen(argv[i]));
858 return REQ_VIEW_BLAME;
860 } else if (!strcmp(subcommand, "show")) {
861 request = REQ_VIEW_DIFF;
863 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
864 request = subcommand[0] == 'l' ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
865 warn("`tig %s' has been deprecated", subcommand);
872 custom_argv[1] = subcommand;
876 for (i = 1 + !!subcommand; i < argc; i++) {
877 const char *opt = argv[i];
879 if (seen_dashdash || !strcmp(opt, "--")) {
880 seen_dashdash = TRUE;
882 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
883 printf("tig version %s\n", TIG_VERSION);
886 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
887 printf("%s\n", usage);
891 custom_argv[j++] = opt;
892 if (j >= ARRAY_SIZE(custom_argv))
893 die("command too long");
896 custom_argv[j] = NULL;
897 *run_argv = custom_argv;
904 * Line-oriented content detection.
908 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
909 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
910 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
911 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
912 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
913 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
914 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
915 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
916 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
917 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
918 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
919 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
920 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
921 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
922 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
923 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
924 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
925 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
926 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
927 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
928 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
929 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
930 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
931 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
932 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
933 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
934 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
935 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
936 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
937 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
938 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
939 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
940 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
941 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
942 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
943 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
944 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
945 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
946 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
947 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
948 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
949 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
950 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
951 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
952 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
953 LINE(TREE_PARENT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD), \
954 LINE(TREE_MODE, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
955 LINE(TREE_DIR, "", COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), \
956 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
957 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
958 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
959 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
960 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
961 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
962 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
963 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
966 #define LINE(type, line, fg, bg, attr) \
974 const char *name; /* Option name. */
975 int namelen; /* Size of option name. */
976 const char *line; /* The start of line to match. */
977 int linelen; /* Size of string to match. */
978 int fg, bg, attr; /* Color and text attributes for the lines. */
981 static struct line_info line_info[] = {
982 #define LINE(type, line, fg, bg, attr) \
983 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
988 static enum line_type
989 get_line_type(const char *line)
991 int linelen = strlen(line);
994 for (type = 0; type < ARRAY_SIZE(line_info); type++)
995 /* Case insensitive search matches Signed-off-by lines better. */
996 if (linelen >= line_info[type].linelen &&
997 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
1000 return LINE_DEFAULT;
1004 get_line_attr(enum line_type type)
1006 assert(type < ARRAY_SIZE(line_info));
1007 return COLOR_PAIR(type) | line_info[type].attr;
1010 static struct line_info *
1011 get_line_info(const char *name)
1013 size_t namelen = strlen(name);
1014 enum line_type type;
1016 for (type = 0; type < ARRAY_SIZE(line_info); type++)
1017 if (namelen == line_info[type].namelen &&
1018 !string_enum_compare(line_info[type].name, name, namelen))
1019 return &line_info[type];
1027 int default_bg = line_info[LINE_DEFAULT].bg;
1028 int default_fg = line_info[LINE_DEFAULT].fg;
1029 enum line_type type;
1033 if (assume_default_colors(default_fg, default_bg) == ERR) {
1034 default_bg = COLOR_BLACK;
1035 default_fg = COLOR_WHITE;
1038 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
1039 struct line_info *info = &line_info[type];
1040 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
1041 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
1043 init_pair(type, fg, bg);
1048 enum line_type type;
1051 unsigned int selected:1;
1052 unsigned int dirty:1;
1053 unsigned int cleareol:1;
1055 void *data; /* User data */
1065 enum request request;
1068 static struct keybinding default_keybindings[] = {
1069 /* View switching */
1070 { 'm', REQ_VIEW_MAIN },
1071 { 'd', REQ_VIEW_DIFF },
1072 { 'l', REQ_VIEW_LOG },
1073 { 't', REQ_VIEW_TREE },
1074 { 'f', REQ_VIEW_BLOB },
1075 { 'B', REQ_VIEW_BLAME },
1076 { 'p', REQ_VIEW_PAGER },
1077 { 'h', REQ_VIEW_HELP },
1078 { 'S', REQ_VIEW_STATUS },
1079 { 'c', REQ_VIEW_STAGE },
1081 /* View manipulation */
1082 { 'q', REQ_VIEW_CLOSE },
1083 { KEY_TAB, REQ_VIEW_NEXT },
1084 { KEY_RETURN, REQ_ENTER },
1085 { KEY_UP, REQ_PREVIOUS },
1086 { KEY_DOWN, REQ_NEXT },
1087 { 'R', REQ_REFRESH },
1088 { KEY_F(5), REQ_REFRESH },
1089 { 'O', REQ_MAXIMIZE },
1091 /* Cursor navigation */
1092 { 'k', REQ_MOVE_UP },
1093 { 'j', REQ_MOVE_DOWN },
1094 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1095 { KEY_END, REQ_MOVE_LAST_LINE },
1096 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1097 { ' ', REQ_MOVE_PAGE_DOWN },
1098 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1099 { 'b', REQ_MOVE_PAGE_UP },
1100 { '-', REQ_MOVE_PAGE_UP },
1103 { KEY_IC, REQ_SCROLL_LINE_UP },
1104 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1105 { 'w', REQ_SCROLL_PAGE_UP },
1106 { 's', REQ_SCROLL_PAGE_DOWN },
1109 { '/', REQ_SEARCH },
1110 { '?', REQ_SEARCH_BACK },
1111 { 'n', REQ_FIND_NEXT },
1112 { 'N', REQ_FIND_PREV },
1116 { 'z', REQ_STOP_LOADING },
1117 { 'v', REQ_SHOW_VERSION },
1118 { 'r', REQ_SCREEN_REDRAW },
1119 { '.', REQ_TOGGLE_LINENO },
1120 { 'D', REQ_TOGGLE_DATE },
1121 { 'A', REQ_TOGGLE_AUTHOR },
1122 { 'g', REQ_TOGGLE_REV_GRAPH },
1123 { 'F', REQ_TOGGLE_REFS },
1124 { ':', REQ_PROMPT },
1125 { 'u', REQ_STATUS_UPDATE },
1126 { '!', REQ_STATUS_REVERT },
1127 { 'M', REQ_STATUS_MERGE },
1128 { '@', REQ_STAGE_NEXT },
1129 { ',', REQ_PARENT },
1133 #define KEYMAP_INFO \
1147 #define KEYMAP_(name) KEYMAP_##name
1152 static struct int_map keymap_table[] = {
1153 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
1158 #define set_keymap(map, name) \
1159 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
1161 struct keybinding_table {
1162 struct keybinding *data;
1166 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1169 add_keybinding(enum keymap keymap, enum request request, int key)
1171 struct keybinding_table *table = &keybindings[keymap];
1173 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1175 die("Failed to allocate keybinding");
1176 table->data[table->size].alias = key;
1177 table->data[table->size++].request = request;
1180 /* Looks for a key binding first in the given map, then in the generic map, and
1181 * lastly in the default keybindings. */
1183 get_keybinding(enum keymap keymap, int key)
1187 for (i = 0; i < keybindings[keymap].size; i++)
1188 if (keybindings[keymap].data[i].alias == key)
1189 return keybindings[keymap].data[i].request;
1191 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1192 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1193 return keybindings[KEYMAP_GENERIC].data[i].request;
1195 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1196 if (default_keybindings[i].alias == key)
1197 return default_keybindings[i].request;
1199 return (enum request) key;
1208 static struct key key_table[] = {
1209 { "Enter", KEY_RETURN },
1211 { "Backspace", KEY_BACKSPACE },
1213 { "Escape", KEY_ESC },
1214 { "Left", KEY_LEFT },
1215 { "Right", KEY_RIGHT },
1217 { "Down", KEY_DOWN },
1218 { "Insert", KEY_IC },
1219 { "Delete", KEY_DC },
1221 { "Home", KEY_HOME },
1223 { "PageUp", KEY_PPAGE },
1224 { "PageDown", KEY_NPAGE },
1234 { "F10", KEY_F(10) },
1235 { "F11", KEY_F(11) },
1236 { "F12", KEY_F(12) },
1240 get_key_value(const char *name)
1244 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1245 if (!strcasecmp(key_table[i].name, name))
1246 return key_table[i].value;
1248 if (strlen(name) == 1 && isprint(*name))
1255 get_key_name(int key_value)
1257 static char key_char[] = "'X'";
1258 const char *seq = NULL;
1261 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1262 if (key_table[key].value == key_value)
1263 seq = key_table[key].name;
1267 isprint(key_value)) {
1268 key_char[1] = (char) key_value;
1272 return seq ? seq : "(no key)";
1276 get_key(enum request request)
1278 static char buf[BUFSIZ];
1285 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1286 struct keybinding *keybinding = &default_keybindings[i];
1288 if (keybinding->request != request)
1291 if (!string_format_from(buf, &pos, "%s%s", sep,
1292 get_key_name(keybinding->alias)))
1293 return "Too many keybindings!";
1300 struct run_request {
1303 const char *argv[SIZEOF_ARG];
1306 static struct run_request *run_request;
1307 static size_t run_requests;
1310 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1312 struct run_request *req;
1314 if (argc >= ARRAY_SIZE(req->argv) - 1)
1317 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1322 req = &run_request[run_requests];
1323 req->keymap = keymap;
1325 req->argv[0] = NULL;
1327 if (!format_argv(req->argv, argv, FORMAT_NONE))
1330 return REQ_NONE + ++run_requests;
1333 static struct run_request *
1334 get_run_request(enum request request)
1336 if (request <= REQ_NONE)
1338 return &run_request[request - REQ_NONE - 1];
1342 add_builtin_run_requests(void)
1344 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1345 const char *gc[] = { "git", "gc", NULL };
1352 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1353 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1357 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1360 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1361 if (req != REQ_NONE)
1362 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1367 * User config file handling.
1370 static struct int_map color_map[] = {
1371 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1383 #define set_color(color, name) \
1384 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1386 static struct int_map attr_map[] = {
1387 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1394 ATTR_MAP(UNDERLINE),
1397 #define set_attribute(attr, name) \
1398 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1400 static int config_lineno;
1401 static bool config_errors;
1402 static const char *config_msg;
1404 /* Wants: object fgcolor bgcolor [attr] */
1406 option_color_command(int argc, const char *argv[])
1408 struct line_info *info;
1410 if (argc != 3 && argc != 4) {
1411 config_msg = "Wrong number of arguments given to color command";
1415 info = get_line_info(argv[0]);
1417 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1418 info = get_line_info("delimiter");
1420 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1421 info = get_line_info("date");
1424 config_msg = "Unknown color name";
1429 if (set_color(&info->fg, argv[1]) == ERR ||
1430 set_color(&info->bg, argv[2]) == ERR) {
1431 config_msg = "Unknown color";
1435 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1436 config_msg = "Unknown attribute";
1443 static bool parse_bool(const char *s)
1445 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1446 !strcmp(s, "yes")) ? TRUE : FALSE;
1450 parse_int(const char *s, int default_value, int min, int max)
1452 int value = atoi(s);
1454 return (value < min || value > max) ? default_value : value;
1457 /* Wants: name = value */
1459 option_set_command(int argc, const char *argv[])
1462 config_msg = "Wrong number of arguments given to set command";
1466 if (strcmp(argv[1], "=")) {
1467 config_msg = "No value assigned";
1471 if (!strcmp(argv[0], "show-author")) {
1472 opt_author = parse_bool(argv[2]);
1476 if (!strcmp(argv[0], "show-date")) {
1477 opt_date = parse_bool(argv[2]);
1481 if (!strcmp(argv[0], "show-rev-graph")) {
1482 opt_rev_graph = parse_bool(argv[2]);
1486 if (!strcmp(argv[0], "show-refs")) {
1487 opt_show_refs = parse_bool(argv[2]);
1491 if (!strcmp(argv[0], "show-line-numbers")) {
1492 opt_line_number = parse_bool(argv[2]);
1496 if (!strcmp(argv[0], "line-graphics")) {
1497 opt_line_graphics = parse_bool(argv[2]);
1501 if (!strcmp(argv[0], "line-number-interval")) {
1502 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1506 if (!strcmp(argv[0], "author-width")) {
1507 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1511 if (!strcmp(argv[0], "tab-size")) {
1512 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1516 if (!strcmp(argv[0], "commit-encoding")) {
1517 const char *arg = argv[2];
1518 int arglen = strlen(arg);
1523 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1524 config_msg = "Unmatched quotation";
1527 arg += 1; arglen -= 2;
1529 string_ncopy(opt_encoding, arg, strlen(arg));
1534 config_msg = "Unknown variable name";
1538 /* Wants: mode request key */
1540 option_bind_command(int argc, const char *argv[])
1542 enum request request;
1547 config_msg = "Wrong number of arguments given to bind command";
1551 if (set_keymap(&keymap, argv[0]) == ERR) {
1552 config_msg = "Unknown key map";
1556 key = get_key_value(argv[1]);
1558 config_msg = "Unknown key";
1562 request = get_request(argv[2]);
1563 if (request == REQ_NONE) {
1566 enum request request;
1568 { "cherry-pick", REQ_NONE },
1569 { "screen-resize", REQ_NONE },
1570 { "tree-parent", REQ_PARENT },
1572 size_t namelen = strlen(argv[2]);
1575 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1576 if (namelen != strlen(obsolete[i].name) ||
1577 string_enum_compare(obsolete[i].name, argv[2], namelen))
1579 if (obsolete[i].request != REQ_NONE)
1580 add_keybinding(keymap, obsolete[i].request, key);
1581 config_msg = "Obsolete request name";
1585 if (request == REQ_NONE && *argv[2]++ == '!')
1586 request = add_run_request(keymap, key, argc - 2, argv + 2);
1587 if (request == REQ_NONE) {
1588 config_msg = "Unknown request name";
1592 add_keybinding(keymap, request, key);
1598 set_option(const char *opt, char *value)
1600 const char *argv[SIZEOF_ARG];
1603 if (!argv_from_string(argv, &argc, value)) {
1604 config_msg = "Too many option arguments";
1608 if (!strcmp(opt, "color"))
1609 return option_color_command(argc, argv);
1611 if (!strcmp(opt, "set"))
1612 return option_set_command(argc, argv);
1614 if (!strcmp(opt, "bind"))
1615 return option_bind_command(argc, argv);
1617 config_msg = "Unknown option command";
1622 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1627 config_msg = "Internal error";
1629 /* Check for comment markers, since read_properties() will
1630 * only ensure opt and value are split at first " \t". */
1631 optlen = strcspn(opt, "#");
1635 if (opt[optlen] != 0) {
1636 config_msg = "No option value";
1640 /* Look for comment endings in the value. */
1641 size_t len = strcspn(value, "#");
1643 if (len < valuelen) {
1645 value[valuelen] = 0;
1648 status = set_option(opt, value);
1651 if (status == ERR) {
1652 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1653 config_lineno, (int) optlen, opt, config_msg);
1654 config_errors = TRUE;
1657 /* Always keep going if errors are encountered. */
1662 load_option_file(const char *path)
1666 /* It's ok that the file doesn't exist. */
1667 if (!io_open(&io, path))
1671 config_errors = FALSE;
1673 if (read_properties(&io, " \t", read_option) == ERR ||
1674 config_errors == TRUE)
1675 fprintf(stderr, "Errors while loading %s.\n", path);
1681 const char *home = getenv("HOME");
1682 const char *tigrc_user = getenv("TIGRC_USER");
1683 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1684 char buf[SIZEOF_STR];
1686 add_builtin_run_requests();
1688 if (!tigrc_system) {
1689 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1693 load_option_file(tigrc_system);
1696 if (!home || !string_format(buf, "%s/.tigrc", home))
1700 load_option_file(tigrc_user);
1713 /* The display array of active views and the index of the current view. */
1714 static struct view *display[2];
1715 static unsigned int current_view;
1717 /* Reading from the prompt? */
1718 static bool input_mode = FALSE;
1720 #define foreach_displayed_view(view, i) \
1721 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1723 #define displayed_views() (display[1] != NULL ? 2 : 1)
1725 /* Current head and commit ID */
1726 static char ref_blob[SIZEOF_REF] = "";
1727 static char ref_commit[SIZEOF_REF] = "HEAD";
1728 static char ref_head[SIZEOF_REF] = "HEAD";
1731 const char *name; /* View name */
1732 const char *cmd_env; /* Command line set via environment */
1733 const char *id; /* Points to either of ref_{head,commit,blob} */
1735 struct view_ops *ops; /* View operations */
1737 enum keymap keymap; /* What keymap does this view have */
1738 bool git_dir; /* Whether the view requires a git directory. */
1740 char ref[SIZEOF_REF]; /* Hovered commit reference */
1741 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1743 int height, width; /* The width and height of the main window */
1744 WINDOW *win; /* The main window */
1745 WINDOW *title; /* The title window living below the main window */
1748 unsigned long offset; /* Offset of the window top */
1749 unsigned long lineno; /* Current line number */
1750 unsigned long p_offset; /* Previous offset of the window top */
1751 unsigned long p_lineno; /* Previous current line number */
1752 bool p_restore; /* Should the previous position be restored. */
1755 char grep[SIZEOF_STR]; /* Search string */
1756 regex_t *regex; /* Pre-compiled regex */
1758 /* If non-NULL, points to the view that opened this view. If this view
1759 * is closed tig will switch back to the parent view. */
1760 struct view *parent;
1763 size_t lines; /* Total number of lines */
1764 struct line *line; /* Line index */
1765 size_t line_alloc; /* Total number of allocated lines */
1766 unsigned int digits; /* Number of digits in the lines member. */
1769 struct line *curline; /* Line currently being drawn. */
1770 enum line_type curtype; /* Attribute currently used for drawing. */
1771 unsigned long col; /* Column when drawing. */
1781 /* What type of content being displayed. Used in the title bar. */
1783 /* Default command arguments. */
1785 /* Open and reads in all view content. */
1786 bool (*open)(struct view *view);
1787 /* Read one line; updates view->line. */
1788 bool (*read)(struct view *view, char *data);
1789 /* Draw one line; @lineno must be < view->height. */
1790 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1791 /* Depending on view handle a special requests. */
1792 enum request (*request)(struct view *view, enum request request, struct line *line);
1793 /* Search for regex in a line. */
1794 bool (*grep)(struct view *view, struct line *line);
1796 void (*select)(struct view *view, struct line *line);
1799 static struct view_ops blame_ops;
1800 static struct view_ops blob_ops;
1801 static struct view_ops diff_ops;
1802 static struct view_ops help_ops;
1803 static struct view_ops log_ops;
1804 static struct view_ops main_ops;
1805 static struct view_ops pager_ops;
1806 static struct view_ops stage_ops;
1807 static struct view_ops status_ops;
1808 static struct view_ops tree_ops;
1810 #define VIEW_STR(name, env, ref, ops, map, git) \
1811 { name, #env, ref, ops, map, git }
1813 #define VIEW_(id, name, ops, git, ref) \
1814 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1817 static struct view views[] = {
1818 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1819 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1820 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1821 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1822 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1823 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1824 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1825 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1826 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1827 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1830 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1831 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1833 #define foreach_view(view, i) \
1834 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1836 #define view_is_displayed(view) \
1837 (view == display[0] || view == display[1])
1844 static int line_graphics[] = {
1845 /* LINE_GRAPHIC_VLINE: */ '|'
1849 set_view_attr(struct view *view, enum line_type type)
1851 if (!view->curline->selected && view->curtype != type) {
1852 wattrset(view->win, get_line_attr(type));
1853 wchgat(view->win, -1, 0, type, NULL);
1854 view->curtype = type;
1859 draw_chars(struct view *view, enum line_type type, const char *string,
1860 int max_len, bool use_tilde)
1864 int trimmed = FALSE;
1870 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1872 col = len = strlen(string);
1873 if (len > max_len) {
1877 col = len = max_len;
1882 set_view_attr(view, type);
1883 waddnstr(view->win, string, len);
1884 if (trimmed && use_tilde) {
1885 set_view_attr(view, LINE_DELIMITER);
1886 waddch(view->win, '~');
1894 draw_space(struct view *view, enum line_type type, int max, int spaces)
1896 static char space[] = " ";
1899 spaces = MIN(max, spaces);
1901 while (spaces > 0) {
1902 int len = MIN(spaces, sizeof(space) - 1);
1904 col += draw_chars(view, type, space, spaces, FALSE);
1912 draw_lineno(struct view *view, unsigned int lineno)
1915 int digits3 = view->digits < 3 ? 3 : view->digits;
1916 int max_number = MIN(digits3, STRING_SIZE(number));
1917 int max = view->width - view->col;
1920 if (max < max_number)
1923 lineno += view->offset + 1;
1924 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1925 static char fmt[] = "%1ld";
1927 if (view->digits <= 9)
1928 fmt[1] = '0' + digits3;
1930 if (!string_format(number, fmt, lineno))
1932 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1934 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1938 set_view_attr(view, LINE_DEFAULT);
1939 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1944 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1947 return view->width - view->col <= 0;
1951 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1953 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1954 return view->width - view->col <= 0;
1958 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1960 int max = view->width - view->col;
1966 set_view_attr(view, type);
1967 /* Using waddch() instead of waddnstr() ensures that
1968 * they'll be rendered correctly for the cursor line. */
1969 for (i = 0; i < size; i++)
1970 waddch(view->win, graphic[i]);
1974 waddch(view->win, ' ');
1978 return view->width - view->col <= 0;
1982 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1984 int max = MIN(view->width - view->col, len);
1988 col = draw_chars(view, type, text, max - 1, trim);
1990 col = draw_space(view, type, max - 1, max - 1);
1992 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1993 return view->width - view->col <= 0;
1997 draw_date(struct view *view, struct tm *time)
1999 char buf[DATE_COLS];
2004 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
2005 date = timelen ? buf : NULL;
2007 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
2011 draw_view_line(struct view *view, unsigned int lineno)
2014 bool selected = (view->offset + lineno == view->lineno);
2016 assert(view_is_displayed(view));
2018 if (view->offset + lineno >= view->lines)
2021 line = &view->line[view->offset + lineno];
2023 wmove(view->win, lineno, 0);
2025 wclrtoeol(view->win);
2027 view->curline = line;
2028 view->curtype = LINE_NONE;
2029 line->selected = FALSE;
2030 line->dirty = line->cleareol = 0;
2033 set_view_attr(view, LINE_CURSOR);
2034 line->selected = TRUE;
2035 view->ops->select(view, line);
2038 return view->ops->draw(view, line, lineno);
2042 redraw_view_dirty(struct view *view)
2047 for (lineno = 0; lineno < view->height; lineno++) {
2048 if (view->offset + lineno >= view->lines)
2050 if (!view->line[view->offset + lineno].dirty)
2053 if (!draw_view_line(view, lineno))
2060 wnoutrefresh(view->win);
2062 wrefresh(view->win);
2066 redraw_view_from(struct view *view, int lineno)
2068 assert(0 <= lineno && lineno < view->height);
2070 for (; lineno < view->height; lineno++) {
2071 if (!draw_view_line(view, lineno))
2076 wnoutrefresh(view->win);
2078 wrefresh(view->win);
2082 redraw_view(struct view *view)
2085 redraw_view_from(view, 0);
2090 update_view_title(struct view *view)
2092 char buf[SIZEOF_STR];
2093 char state[SIZEOF_STR];
2094 size_t bufpos = 0, statelen = 0;
2096 assert(view_is_displayed(view));
2098 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2099 unsigned int view_lines = view->offset + view->height;
2100 unsigned int lines = view->lines
2101 ? MIN(view_lines, view->lines) * 100 / view->lines
2104 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2113 time_t secs = time(NULL) - view->start_time;
2115 /* Three git seconds are a long time ... */
2117 string_format_from(state, &statelen, " loading %lds", secs);
2120 string_format_from(buf, &bufpos, "[%s]", view->name);
2121 if (*view->ref && bufpos < view->width) {
2122 size_t refsize = strlen(view->ref);
2123 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2125 if (minsize < view->width)
2126 refsize = view->width - minsize + 7;
2127 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2130 if (statelen && bufpos < view->width) {
2131 string_format_from(buf, &bufpos, "%s", state);
2134 if (view == display[current_view])
2135 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2137 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2139 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2140 wclrtoeol(view->title);
2141 wmove(view->title, 0, view->width - 1);
2144 wnoutrefresh(view->title);
2146 wrefresh(view->title);
2150 resize_display(void)
2153 struct view *base = display[0];
2154 struct view *view = display[1] ? display[1] : display[0];
2156 /* Setup window dimensions */
2158 getmaxyx(stdscr, base->height, base->width);
2160 /* Make room for the status window. */
2164 /* Horizontal split. */
2165 view->width = base->width;
2166 view->height = SCALE_SPLIT_VIEW(base->height);
2167 base->height -= view->height;
2169 /* Make room for the title bar. */
2173 /* Make room for the title bar. */
2178 foreach_displayed_view (view, i) {
2180 view->win = newwin(view->height, 0, offset, 0);
2182 die("Failed to create %s view", view->name);
2184 scrollok(view->win, FALSE);
2186 view->title = newwin(1, 0, offset + view->height, 0);
2188 die("Failed to create title window");
2191 wresize(view->win, view->height, view->width);
2192 mvwin(view->win, offset, 0);
2193 mvwin(view->title, offset + view->height, 0);
2196 offset += view->height + 1;
2201 redraw_display(bool clear)
2206 foreach_displayed_view (view, i) {
2210 update_view_title(view);
2215 update_display_cursor(struct view *view)
2217 /* Move the cursor to the right-most column of the cursor line.
2219 * XXX: This could turn out to be a bit expensive, but it ensures that
2220 * the cursor does not jump around. */
2222 wmove(view->win, view->lineno - view->offset, view->width - 1);
2223 wrefresh(view->win);
2228 toggle_view_option(bool *option, const char *help)
2231 redraw_display(FALSE);
2232 report("%sabling %s", *option ? "En" : "Dis", help);
2239 /* Scrolling backend */
2241 do_scroll_view(struct view *view, int lines)
2243 bool redraw_current_line = FALSE;
2245 /* The rendering expects the new offset. */
2246 view->offset += lines;
2248 assert(0 <= view->offset && view->offset < view->lines);
2251 /* Move current line into the view. */
2252 if (view->lineno < view->offset) {
2253 view->lineno = view->offset;
2254 redraw_current_line = TRUE;
2255 } else if (view->lineno >= view->offset + view->height) {
2256 view->lineno = view->offset + view->height - 1;
2257 redraw_current_line = TRUE;
2260 assert(view->offset <= view->lineno && view->lineno < view->lines);
2262 /* Redraw the whole screen if scrolling is pointless. */
2263 if (view->height < ABS(lines)) {
2267 int line = lines > 0 ? view->height - lines : 0;
2268 int end = line + ABS(lines);
2270 scrollok(view->win, TRUE);
2271 wscrl(view->win, lines);
2272 scrollok(view->win, FALSE);
2274 for (; line < end; line++) {
2275 if (!draw_view_line(view, line))
2279 if (redraw_current_line)
2280 draw_view_line(view, view->lineno - view->offset);
2283 wrefresh(view->win);
2287 /* Scroll frontend */
2289 scroll_view(struct view *view, enum request request)
2293 assert(view_is_displayed(view));
2296 case REQ_SCROLL_PAGE_DOWN:
2297 lines = view->height;
2298 case REQ_SCROLL_LINE_DOWN:
2299 if (view->offset + lines > view->lines)
2300 lines = view->lines - view->offset;
2302 if (lines == 0 || view->offset + view->height >= view->lines) {
2303 report("Cannot scroll beyond the last line");
2308 case REQ_SCROLL_PAGE_UP:
2309 lines = view->height;
2310 case REQ_SCROLL_LINE_UP:
2311 if (lines > view->offset)
2312 lines = view->offset;
2315 report("Cannot scroll beyond the first line");
2323 die("request %d not handled in switch", request);
2326 do_scroll_view(view, lines);
2331 move_view(struct view *view, enum request request)
2333 int scroll_steps = 0;
2337 case REQ_MOVE_FIRST_LINE:
2338 steps = -view->lineno;
2341 case REQ_MOVE_LAST_LINE:
2342 steps = view->lines - view->lineno - 1;
2345 case REQ_MOVE_PAGE_UP:
2346 steps = view->height > view->lineno
2347 ? -view->lineno : -view->height;
2350 case REQ_MOVE_PAGE_DOWN:
2351 steps = view->lineno + view->height >= view->lines
2352 ? view->lines - view->lineno - 1 : view->height;
2364 die("request %d not handled in switch", request);
2367 if (steps <= 0 && view->lineno == 0) {
2368 report("Cannot move beyond the first line");
2371 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2372 report("Cannot move beyond the last line");
2376 /* Move the current line */
2377 view->lineno += steps;
2378 assert(0 <= view->lineno && view->lineno < view->lines);
2380 /* Check whether the view needs to be scrolled */
2381 if (view->lineno < view->offset ||
2382 view->lineno >= view->offset + view->height) {
2383 scroll_steps = steps;
2384 if (steps < 0 && -steps > view->offset) {
2385 scroll_steps = -view->offset;
2387 } else if (steps > 0) {
2388 if (view->lineno == view->lines - 1 &&
2389 view->lines > view->height) {
2390 scroll_steps = view->lines - view->offset - 1;
2391 if (scroll_steps >= view->height)
2392 scroll_steps -= view->height - 1;
2397 if (!view_is_displayed(view)) {
2398 view->offset += scroll_steps;
2399 assert(0 <= view->offset && view->offset < view->lines);
2400 view->ops->select(view, &view->line[view->lineno]);
2404 /* Repaint the old "current" line if we be scrolling */
2405 if (ABS(steps) < view->height)
2406 draw_view_line(view, view->lineno - steps - view->offset);
2409 do_scroll_view(view, scroll_steps);
2413 /* Draw the current line */
2414 draw_view_line(view, view->lineno - view->offset);
2416 wrefresh(view->win);
2425 static void search_view(struct view *view, enum request request);
2428 select_view_line(struct view *view, unsigned long lineno)
2430 if (lineno - view->offset >= view->height) {
2431 view->offset = lineno;
2432 view->lineno = lineno;
2433 if (view_is_displayed(view))
2437 unsigned long old_lineno = view->lineno - view->offset;
2439 view->lineno = lineno;
2440 if (view_is_displayed(view)) {
2441 draw_view_line(view, old_lineno);
2442 draw_view_line(view, view->lineno - view->offset);
2443 wrefresh(view->win);
2445 view->ops->select(view, &view->line[view->lineno]);
2451 find_next(struct view *view, enum request request)
2453 unsigned long lineno = view->lineno;
2458 report("No previous search");
2460 search_view(view, request);
2470 case REQ_SEARCH_BACK:
2479 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2480 lineno += direction;
2482 /* Note, lineno is unsigned long so will wrap around in which case it
2483 * will become bigger than view->lines. */
2484 for (; lineno < view->lines; lineno += direction) {
2485 if (view->ops->grep(view, &view->line[lineno])) {
2486 select_view_line(view, lineno);
2487 report("Line %ld matches '%s'", lineno + 1, view->grep);
2492 report("No match found for '%s'", view->grep);
2496 search_view(struct view *view, enum request request)
2501 regfree(view->regex);
2504 view->regex = calloc(1, sizeof(*view->regex));
2509 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2510 if (regex_err != 0) {
2511 char buf[SIZEOF_STR] = "unknown error";
2513 regerror(regex_err, view->regex, buf, sizeof(buf));
2514 report("Search failed: %s", buf);
2518 string_copy(view->grep, opt_search);
2520 find_next(view, request);
2524 * Incremental updating
2528 reset_view(struct view *view)
2532 for (i = 0; i < view->lines; i++)
2533 free(view->line[i].data);
2536 view->p_offset = view->offset;
2537 view->p_lineno = view->lineno;
2543 view->line_alloc = 0;
2545 view->update_secs = 0;
2549 free_argv(const char *argv[])
2553 for (argc = 0; argv[argc]; argc++)
2554 free((void *) argv[argc]);
2558 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2560 char buf[SIZEOF_STR];
2562 bool noreplace = flags == FORMAT_NONE;
2564 free_argv(dst_argv);
2566 for (argc = 0; src_argv[argc]; argc++) {
2567 const char *arg = src_argv[argc];
2571 char *next = strstr(arg, "%(");
2572 int len = next - arg;
2575 if (!next || noreplace) {
2576 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2581 } else if (!prefixcmp(next, "%(directory)")) {
2584 } else if (!prefixcmp(next, "%(file)")) {
2587 } else if (!prefixcmp(next, "%(ref)")) {
2588 value = *opt_ref ? opt_ref : "HEAD";
2590 } else if (!prefixcmp(next, "%(head)")) {
2593 } else if (!prefixcmp(next, "%(commit)")) {
2596 } else if (!prefixcmp(next, "%(blob)")) {
2600 report("Unknown replacement: `%s`", next);
2604 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2607 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2610 dst_argv[argc] = strdup(buf);
2611 if (!dst_argv[argc])
2615 dst_argv[argc] = NULL;
2617 return src_argv[argc] == NULL;
2621 restore_view_position(struct view *view)
2623 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2626 /* Changing the view position cancels the restoring. */
2627 /* FIXME: Changing back to the first line is not detected. */
2628 if (view->offset != 0 || view->lineno != 0) {
2629 view->p_restore = FALSE;
2633 if (view->p_lineno >= view->lines) {
2634 view->p_lineno = view->lines > 0 ? view->lines - 1 : 0;
2635 if (view->p_offset >= view->p_lineno) {
2636 unsigned long half = view->height / 2;
2638 if (view->p_lineno > half)
2639 view->p_offset = view->p_lineno - half;
2645 if (view_is_displayed(view) &&
2646 view->offset != view->p_offset &&
2647 view->lineno != view->p_lineno)
2650 view->offset = view->p_offset;
2651 view->lineno = view->p_lineno;
2652 view->p_restore = FALSE;
2658 end_update(struct view *view, bool force)
2662 while (!view->ops->read(view, NULL))
2665 set_nonblocking_input(FALSE);
2667 kill_io(view->pipe);
2668 done_io(view->pipe);
2673 setup_update(struct view *view, const char *vid)
2675 set_nonblocking_input(TRUE);
2677 string_copy_rev(view->vid, vid);
2678 view->pipe = &view->io;
2679 view->start_time = time(NULL);
2683 prepare_update(struct view *view, const char *argv[], const char *dir,
2684 enum format_flags flags)
2687 end_update(view, TRUE);
2688 return init_io_rd(&view->io, argv, dir, flags);
2692 prepare_update_file(struct view *view, const char *name)
2695 end_update(view, TRUE);
2696 return io_open(&view->io, name);
2700 begin_update(struct view *view, bool refresh)
2703 end_update(view, TRUE);
2706 if (!start_io(&view->io))
2710 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2713 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2716 /* Put the current ref_* value to the view title ref
2717 * member. This is needed by the blob view. Most other
2718 * views sets it automatically after loading because the
2719 * first line is a commit line. */
2720 string_copy_rev(view->ref, view->id);
2723 setup_update(view, view->id);
2728 #define ITEM_CHUNK_SIZE 256
2730 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2732 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2733 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2735 if (mem == NULL || num_chunks != num_chunks_new) {
2736 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2737 mem = realloc(mem, *size * item_size);
2743 static struct line *
2744 realloc_lines(struct view *view, size_t line_size)
2746 size_t alloc = view->line_alloc;
2747 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2748 sizeof(*view->line));
2754 view->line_alloc = alloc;
2759 update_view(struct view *view)
2761 char out_buffer[BUFSIZ * 2];
2763 /* Clear the view and redraw everything since the tree sorting
2764 * might have rearranged things. */
2765 bool redraw = view->lines == 0;
2766 bool can_read = TRUE;
2771 if (!io_can_read(view->pipe)) {
2772 if (view->lines == 0) {
2773 time_t secs = time(NULL) - view->start_time;
2775 if (secs > view->update_secs) {
2776 if (view->update_secs == 0)
2778 update_view_title(view);
2779 view->update_secs = secs;
2785 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2786 if (opt_iconv != ICONV_NONE) {
2787 ICONV_CONST char *inbuf = line;
2788 size_t inlen = strlen(line) + 1;
2790 char *outbuf = out_buffer;
2791 size_t outlen = sizeof(out_buffer);
2795 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2796 if (ret != (size_t) -1)
2800 if (!view->ops->read(view, line)) {
2801 report("Allocation failure");
2802 end_update(view, TRUE);
2808 unsigned long lines = view->lines;
2811 for (digits = 0; lines; digits++)
2814 /* Keep the displayed view in sync with line number scaling. */
2815 if (digits != view->digits) {
2816 view->digits = digits;
2817 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2822 if (io_error(view->pipe)) {
2823 report("Failed to read: %s", io_strerror(view->pipe));
2824 end_update(view, TRUE);
2826 } else if (io_eof(view->pipe)) {
2828 end_update(view, FALSE);
2831 if (restore_view_position(view))
2834 if (!view_is_displayed(view))
2838 redraw_view_from(view, 0);
2840 redraw_view_dirty(view);
2842 /* Update the title _after_ the redraw so that if the redraw picks up a
2843 * commit reference in view->ref it'll be available here. */
2844 update_view_title(view);
2848 static struct line *
2849 add_line_data(struct view *view, void *data, enum line_type type)
2853 if (!realloc_lines(view, view->lines + 1))
2856 line = &view->line[view->lines++];
2857 memset(line, 0, sizeof(*line));
2865 static struct line *
2866 add_line_text(struct view *view, const char *text, enum line_type type)
2868 char *data = text ? strdup(text) : NULL;
2870 return data ? add_line_data(view, data, type) : NULL;
2873 static struct line *
2874 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2876 char buf[SIZEOF_STR];
2879 va_start(args, fmt);
2880 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2884 return buf[0] ? add_line_text(view, buf, type) : NULL;
2892 OPEN_DEFAULT = 0, /* Use default view switching. */
2893 OPEN_SPLIT = 1, /* Split current view. */
2894 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2895 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2896 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2897 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2898 OPEN_PREPARED = 32, /* Open already prepared command. */
2902 open_view(struct view *prev, enum request request, enum open_flags flags)
2904 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2905 bool split = !!(flags & OPEN_SPLIT);
2906 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2907 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2908 struct view *view = VIEW(request);
2909 int nviews = displayed_views();
2910 struct view *base_view = display[0];
2912 if (view == prev && nviews == 1 && !reload) {
2913 report("Already in %s view", view->name);
2917 if (view->git_dir && !opt_git_dir[0]) {
2918 report("The %s view is disabled in pager view", view->name);
2926 } else if (!nomaximize) {
2927 /* Maximize the current view. */
2928 memset(display, 0, sizeof(display));
2930 display[current_view] = view;
2933 /* Resize the view when switching between split- and full-screen,
2934 * or when switching between two different full-screen views. */
2935 if (nviews != displayed_views() ||
2936 (nviews == 1 && base_view != display[0]))
2939 if (view->ops->open) {
2941 end_update(view, TRUE);
2942 if (!view->ops->open(view)) {
2943 report("Failed to load %s view", view->name);
2946 restore_view_position(view);
2948 } else if ((reload || strcmp(view->vid, view->id)) &&
2949 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2950 report("Failed to load %s view", view->name);
2954 if (split && prev->lineno - prev->offset >= prev->height) {
2955 /* Take the title line into account. */
2956 int lines = prev->lineno - prev->offset - prev->height + 1;
2958 /* Scroll the view that was split if the current line is
2959 * outside the new limited view. */
2960 do_scroll_view(prev, lines);
2963 if (prev && view != prev) {
2964 if (split && !backgrounded) {
2965 /* "Blur" the previous view. */
2966 update_view_title(prev);
2969 view->parent = prev;
2972 if (view->pipe && view->lines == 0) {
2973 /* Clear the old view and let the incremental updating refill
2976 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
2978 } else if (view_is_displayed(view)) {
2983 /* If the view is backgrounded the above calls to report()
2984 * won't redraw the view title. */
2986 update_view_title(view);
2990 open_external_viewer(const char *argv[], const char *dir)
2992 def_prog_mode(); /* save current tty modes */
2993 endwin(); /* restore original tty modes */
2994 run_io_fg(argv, dir);
2995 fprintf(stderr, "Press Enter to continue");
2998 redraw_display(TRUE);
3002 open_mergetool(const char *file)
3004 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
3006 open_external_viewer(mergetool_argv, opt_cdup);
3010 open_editor(bool from_root, const char *file)
3012 const char *editor_argv[] = { "vi", file, NULL };
3015 editor = getenv("GIT_EDITOR");
3016 if (!editor && *opt_editor)
3017 editor = opt_editor;
3019 editor = getenv("VISUAL");
3021 editor = getenv("EDITOR");
3025 editor_argv[0] = editor;
3026 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3030 open_run_request(enum request request)
3032 struct run_request *req = get_run_request(request);
3033 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3036 report("Unknown run request");
3040 if (format_argv(argv, req->argv, FORMAT_ALL))
3041 open_external_viewer(argv, NULL);
3046 * User request switch noodle
3050 view_driver(struct view *view, enum request request)
3054 if (request == REQ_NONE) {
3059 if (request > REQ_NONE) {
3060 open_run_request(request);
3061 /* FIXME: When all views can refresh always do this. */
3062 if (view == VIEW(REQ_VIEW_STATUS) ||
3063 view == VIEW(REQ_VIEW_MAIN) ||
3064 view == VIEW(REQ_VIEW_LOG) ||
3065 view == VIEW(REQ_VIEW_STAGE))
3066 request = REQ_REFRESH;
3071 if (view && view->lines) {
3072 request = view->ops->request(view, request, &view->line[view->lineno]);
3073 if (request == REQ_NONE)
3080 case REQ_MOVE_PAGE_UP:
3081 case REQ_MOVE_PAGE_DOWN:
3082 case REQ_MOVE_FIRST_LINE:
3083 case REQ_MOVE_LAST_LINE:
3084 move_view(view, request);
3087 case REQ_SCROLL_LINE_DOWN:
3088 case REQ_SCROLL_LINE_UP:
3089 case REQ_SCROLL_PAGE_DOWN:
3090 case REQ_SCROLL_PAGE_UP:
3091 scroll_view(view, request);
3094 case REQ_VIEW_BLAME:
3096 report("No file chosen, press %s to open tree view",
3097 get_key(REQ_VIEW_TREE));
3100 open_view(view, request, OPEN_DEFAULT);
3105 report("No file chosen, press %s to open tree view",
3106 get_key(REQ_VIEW_TREE));
3109 open_view(view, request, OPEN_DEFAULT);
3112 case REQ_VIEW_PAGER:
3113 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3114 report("No pager content, press %s to run command from prompt",
3115 get_key(REQ_PROMPT));
3118 open_view(view, request, OPEN_DEFAULT);
3121 case REQ_VIEW_STAGE:
3122 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3123 report("No stage content, press %s to open the status view and choose file",
3124 get_key(REQ_VIEW_STATUS));
3127 open_view(view, request, OPEN_DEFAULT);
3130 case REQ_VIEW_STATUS:
3131 if (opt_is_inside_work_tree == FALSE) {
3132 report("The status view requires a working tree");
3135 open_view(view, request, OPEN_DEFAULT);
3143 open_view(view, request, OPEN_DEFAULT);
3148 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3150 if ((view == VIEW(REQ_VIEW_DIFF) &&
3151 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3152 (view == VIEW(REQ_VIEW_DIFF) &&
3153 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3154 (view == VIEW(REQ_VIEW_STAGE) &&
3155 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3156 (view == VIEW(REQ_VIEW_BLOB) &&
3157 view->parent == VIEW(REQ_VIEW_TREE))) {
3160 view = view->parent;
3161 line = view->lineno;
3162 move_view(view, request);
3163 if (view_is_displayed(view))
3164 update_view_title(view);
3165 if (line != view->lineno)
3166 view->ops->request(view, REQ_ENTER,
3167 &view->line[view->lineno]);
3170 move_view(view, request);
3176 int nviews = displayed_views();
3177 int next_view = (current_view + 1) % nviews;
3179 if (next_view == current_view) {
3180 report("Only one view is displayed");
3184 current_view = next_view;
3185 /* Blur out the title of the previous view. */
3186 update_view_title(view);
3191 report("Refreshing is not yet supported for the %s view", view->name);
3195 if (displayed_views() == 2)
3196 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3199 case REQ_TOGGLE_LINENO:
3200 toggle_view_option(&opt_line_number, "line numbers");
3203 case REQ_TOGGLE_DATE:
3204 toggle_view_option(&opt_date, "date display");
3207 case REQ_TOGGLE_AUTHOR:
3208 toggle_view_option(&opt_author, "author display");
3211 case REQ_TOGGLE_REV_GRAPH:
3212 toggle_view_option(&opt_rev_graph, "revision graph display");
3215 case REQ_TOGGLE_REFS:
3216 toggle_view_option(&opt_show_refs, "reference display");
3220 case REQ_SEARCH_BACK:
3221 search_view(view, request);
3226 find_next(view, request);
3229 case REQ_STOP_LOADING:
3230 for (i = 0; i < ARRAY_SIZE(views); i++) {
3233 report("Stopped loading the %s view", view->name),
3234 end_update(view, TRUE);
3238 case REQ_SHOW_VERSION:
3239 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3242 case REQ_SCREEN_REDRAW:
3243 redraw_display(TRUE);
3247 report("Nothing to edit");
3251 report("Nothing to enter");
3254 case REQ_VIEW_CLOSE:
3255 /* XXX: Mark closed views by letting view->parent point to the
3256 * view itself. Parents to closed view should never be
3259 view->parent->parent != view->parent) {
3260 memset(display, 0, sizeof(display));
3262 display[current_view] = view->parent;
3263 view->parent = view;
3265 redraw_display(FALSE);
3274 report("Unknown key, press 'h' for help");
3283 * View backend utilities
3286 /* Parse author lines where the name may be empty:
3287 * author <email@address.tld> 1138474660 +0100
3290 parse_author_line(char *ident, char *author, size_t authorsize, struct tm *tm)
3292 char *nameend = strchr(ident, '<');
3293 char *emailend = strchr(ident, '>');
3295 if (nameend && emailend)
3296 *nameend = *emailend = 0;
3297 ident = chomp_string(ident);
3300 ident = chomp_string(nameend + 1);
3305 string_ncopy_do(author, authorsize, ident, strlen(ident));
3307 /* Parse epoch and timezone */
3308 if (emailend && emailend[1] == ' ') {
3309 char *secs = emailend + 2;
3310 char *zone = strchr(secs, ' ');
3311 time_t time = (time_t) atol(secs);
3313 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
3317 tz = ('0' - zone[1]) * 60 * 60 * 10;
3318 tz += ('0' - zone[2]) * 60 * 60;
3319 tz += ('0' - zone[3]) * 60;
3320 tz += ('0' - zone[4]) * 60;
3328 gmtime_r(&time, tm);
3332 static enum input_status
3333 select_commit_parent_handler(void *data, char *buf, int c)
3335 size_t parents = *(size_t *) data;
3342 parent = atoi(buf) * 10;
3345 if (parent > parents)
3351 select_commit_parent(const char *id, char rev[SIZEOF_REV])
3353 char buf[SIZEOF_STR * 4];
3354 const char *revlist_argv[] = {
3355 "git", "rev-list", "-1", "--parents", id, NULL
3359 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3360 !*chomp_string(buf) ||
3361 (parents = (strlen(buf) / 40) - 1) < 0) {
3362 report("Failed to get parent information");
3365 } else if (parents == 0) {
3366 report("The selected commit has no parents");
3371 char prompt[SIZEOF_STR];
3374 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3376 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3379 parents = atoi(result);
3382 string_copy_rev(rev, &buf[41 * parents]);
3391 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3393 char *text = line->data;
3395 if (opt_line_number && draw_lineno(view, lineno))
3398 draw_text(view, line->type, text, TRUE);
3403 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3405 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3406 char refbuf[SIZEOF_STR];
3409 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3410 ref = chomp_string(refbuf);
3415 /* This is the only fatal call, since it can "corrupt" the buffer. */
3416 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3423 add_pager_refs(struct view *view, struct line *line)
3425 char buf[SIZEOF_STR];
3426 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3428 size_t bufpos = 0, refpos = 0;
3429 const char *sep = "Refs: ";
3430 bool is_tag = FALSE;
3432 assert(line->type == LINE_COMMIT);
3434 refs = get_refs(commit_id);
3436 if (view == VIEW(REQ_VIEW_DIFF))
3437 goto try_add_describe_ref;
3442 struct ref *ref = refs[refpos];
3443 const char *fmt = ref->tag ? "%s[%s]" :
3444 ref->remote ? "%s<%s>" : "%s%s";
3446 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3451 } while (refs[refpos++]->next);
3453 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3454 try_add_describe_ref:
3455 /* Add <tag>-g<commit_id> "fake" reference. */
3456 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3463 add_line_text(view, buf, LINE_PP_REFS);
3467 pager_read(struct view *view, char *data)
3474 line = add_line_text(view, data, get_line_type(data));
3478 if (line->type == LINE_COMMIT &&
3479 (view == VIEW(REQ_VIEW_DIFF) ||
3480 view == VIEW(REQ_VIEW_LOG)))
3481 add_pager_refs(view, line);
3487 pager_request(struct view *view, enum request request, struct line *line)
3491 if (request != REQ_ENTER)
3494 if (line->type == LINE_COMMIT &&
3495 (view == VIEW(REQ_VIEW_LOG) ||
3496 view == VIEW(REQ_VIEW_PAGER))) {
3497 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3501 /* Always scroll the view even if it was split. That way
3502 * you can use Enter to scroll through the log view and
3503 * split open each commit diff. */
3504 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3506 /* FIXME: A minor workaround. Scrolling the view will call report("")
3507 * but if we are scrolling a non-current view this won't properly
3508 * update the view title. */
3510 update_view_title(view);
3516 pager_grep(struct view *view, struct line *line)
3519 char *text = line->data;
3524 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3531 pager_select(struct view *view, struct line *line)
3533 if (line->type == LINE_COMMIT) {
3534 char *text = (char *)line->data + STRING_SIZE("commit ");
3536 if (view != VIEW(REQ_VIEW_PAGER))
3537 string_copy_rev(view->ref, text);
3538 string_copy_rev(ref_commit, text);
3542 static struct view_ops pager_ops = {
3553 static const char *log_argv[SIZEOF_ARG] = {
3554 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3558 log_request(struct view *view, enum request request, struct line *line)
3563 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3566 return pager_request(view, request, line);
3570 static struct view_ops log_ops = {
3581 static const char *diff_argv[SIZEOF_ARG] = {
3582 "git", "show", "--pretty=fuller", "--no-color", "--root",
3583 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3586 static struct view_ops diff_ops = {
3602 help_open(struct view *view)
3604 char buf[SIZEOF_STR];
3608 if (view->lines > 0)
3611 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3613 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3616 if (req_info[i].request == REQ_NONE)
3619 if (!req_info[i].request) {
3620 add_line_text(view, "", LINE_DEFAULT);
3621 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3625 key = get_key(req_info[i].request);
3627 key = "(no key defined)";
3629 for (bufpos = 0; bufpos <= req_info[i].namelen; bufpos++) {
3630 buf[bufpos] = tolower(req_info[i].name[bufpos]);
3631 if (buf[bufpos] == '_')
3635 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s",
3636 key, buf, req_info[i].help);
3640 add_line_text(view, "", LINE_DEFAULT);
3641 add_line_text(view, "External commands:", LINE_DEFAULT);
3644 for (i = 0; i < run_requests; i++) {
3645 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3652 key = get_key_name(req->key);
3654 key = "(no key defined)";
3656 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3657 if (!string_format_from(buf, &bufpos, "%s%s",
3658 argc ? " " : "", req->argv[argc]))
3661 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3662 keymap_table[req->keymap].name, key, buf);
3668 static struct view_ops help_ops = {
3684 struct tree_stack_entry {
3685 struct tree_stack_entry *prev; /* Entry below this in the stack */
3686 unsigned long lineno; /* Line number to restore */
3687 char *name; /* Position of name in opt_path */
3690 /* The top of the path stack. */
3691 static struct tree_stack_entry *tree_stack = NULL;
3692 unsigned long tree_lineno = 0;
3695 pop_tree_stack_entry(void)
3697 struct tree_stack_entry *entry = tree_stack;
3699 tree_lineno = entry->lineno;
3701 tree_stack = entry->prev;
3706 push_tree_stack_entry(const char *name, unsigned long lineno)
3708 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3709 size_t pathlen = strlen(opt_path);
3714 entry->prev = tree_stack;
3715 entry->name = opt_path + pathlen;
3718 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3719 pop_tree_stack_entry();
3723 /* Move the current line to the first tree entry. */
3725 entry->lineno = lineno;
3728 /* Parse output from git-ls-tree(1):
3730 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3731 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3732 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3733 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3736 #define SIZEOF_TREE_ATTR \
3737 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3739 #define SIZEOF_TREE_MODE \
3740 STRING_SIZE("100644 ")
3742 #define TREE_ID_OFFSET \
3743 STRING_SIZE("100644 blob ")
3746 char id[SIZEOF_REV];
3748 struct tm time; /* Date from the author ident. */
3749 char author[75]; /* Author of the commit. */
3754 tree_path(struct line *line)
3756 return ((struct tree_entry *) line->data)->name;
3761 tree_compare_entry(struct line *line1, struct line *line2)
3763 if (line1->type != line2->type)
3764 return line1->type == LINE_TREE_DIR ? -1 : 1;
3765 return strcmp(tree_path(line1), tree_path(line2));
3768 static struct line *
3769 tree_entry(struct view *view, enum line_type type, const char *path,
3770 const char *mode, const char *id)
3772 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3773 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3775 if (!entry || !line) {
3780 strncpy(entry->name, path, strlen(path));
3782 entry->mode = strtoul(mode, NULL, 8);
3784 string_copy_rev(entry->id, id);
3790 tree_read_date(struct view *view, char *text, bool *read_date)
3792 static char author_name[SIZEOF_STR];
3793 static struct tm author_time;
3795 if (!text && *read_date) {
3800 char *path = *opt_path ? opt_path : ".";
3801 /* Find next entry to process */
3802 const char *log_file[] = {
3803 "git", "log", "--no-color", "--pretty=raw",
3804 "--cc", "--raw", view->id, "--", path, NULL
3808 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3809 report("Failed to load tree data");
3813 done_io(view->pipe);
3818 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3819 parse_author_line(text + STRING_SIZE("author "),
3820 author_name, sizeof(author_name), &author_time);
3822 } else if (*text == ':') {
3824 size_t annotated = 1;
3827 pos = strchr(text, '\t');
3831 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3832 text += strlen(opt_prefix);
3833 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3834 text += strlen(opt_path);
3835 pos = strchr(text, '/');
3839 for (i = 1; i < view->lines; i++) {
3840 struct line *line = &view->line[i];
3841 struct tree_entry *entry = line->data;
3843 annotated += !!*entry->author;
3844 if (*entry->author || strcmp(entry->name, text))
3847 string_copy(entry->author, author_name);
3848 memcpy(&entry->time, &author_time, sizeof(entry->time));
3853 if (annotated == view->lines)
3854 kill_io(view->pipe);
3860 tree_read(struct view *view, char *text)
3862 static bool read_date = FALSE;
3863 struct tree_entry *data;
3864 struct line *entry, *line;
3865 enum line_type type;
3866 size_t textlen = text ? strlen(text) : 0;
3867 char *path = text + SIZEOF_TREE_ATTR;
3869 if (read_date || !text)
3870 return tree_read_date(view, text, &read_date);
3872 if (textlen <= SIZEOF_TREE_ATTR)
3874 if (view->lines == 0 &&
3875 !tree_entry(view, LINE_TREE_PARENT, opt_path, NULL, NULL))
3878 /* Strip the path part ... */
3880 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3881 size_t striplen = strlen(opt_path);
3883 if (pathlen > striplen)
3884 memmove(path, path + striplen,
3885 pathlen - striplen + 1);
3887 /* Insert "link" to parent directory. */
3888 if (view->lines == 1 &&
3889 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3893 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3894 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3899 /* Skip "Directory ..." and ".." line. */
3900 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3901 if (tree_compare_entry(line, entry) <= 0)
3904 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3908 for (; line <= entry; line++)
3909 line->dirty = line->cleareol = 1;
3913 if (tree_lineno > view->lineno) {
3914 view->lineno = tree_lineno;
3922 tree_draw(struct view *view, struct line *line, unsigned int lineno)
3924 struct tree_entry *entry = line->data;
3926 if (line->type == LINE_TREE_PARENT) {
3927 if (draw_text(view, line->type, "Directory path /", TRUE))
3930 char mode[11] = "-r--r--r--";
3932 if (S_ISDIR(entry->mode)) {
3933 mode[3] = mode[6] = mode[9] = 'x';
3936 if (S_ISLNK(entry->mode))
3938 if (entry->mode & S_IWUSR)
3940 if (entry->mode & S_IXUSR)
3942 if (entry->mode & S_IXGRP)
3944 if (entry->mode & S_IXOTH)
3946 if (draw_field(view, LINE_TREE_MODE, mode, 11, TRUE))
3950 draw_field(view, LINE_MAIN_AUTHOR, entry->author, opt_author_cols, TRUE))
3953 if (opt_date && draw_date(view, *entry->author ? &entry->time : NULL))
3956 if (draw_text(view, line->type, entry->name, TRUE))
3964 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
3965 int fd = mkstemp(file);
3968 report("Failed to create temporary file");
3969 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
3970 report("Failed to save blob data to file");
3972 open_editor(FALSE, file);
3978 tree_request(struct view *view, enum request request, struct line *line)
3980 enum open_flags flags;
3983 case REQ_VIEW_BLAME:
3984 if (line->type != LINE_TREE_FILE) {
3985 report("Blame only supported for files");
3989 string_copy(opt_ref, view->vid);
3993 if (line->type != LINE_TREE_FILE) {
3994 report("Edit only supported for files");
3995 } else if (!is_head_commit(view->vid)) {
3998 open_editor(TRUE, opt_file);
4004 /* quit view if at top of tree */
4005 return REQ_VIEW_CLOSE;
4008 line = &view->line[1];
4018 /* Cleanup the stack if the tree view is at a different tree. */
4019 while (!*opt_path && tree_stack)
4020 pop_tree_stack_entry();
4022 switch (line->type) {
4024 /* Depending on whether it is a subdir or parent (updir?) link
4025 * mangle the path buffer. */
4026 if (line == &view->line[1] && *opt_path) {
4027 pop_tree_stack_entry();
4030 const char *basename = tree_path(line);
4032 push_tree_stack_entry(basename, view->lineno);
4035 /* Trees and subtrees share the same ID, so they are not not
4036 * unique like blobs. */
4037 flags = OPEN_RELOAD;
4038 request = REQ_VIEW_TREE;
4041 case LINE_TREE_FILE:
4042 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4043 request = REQ_VIEW_BLOB;
4050 open_view(view, request, flags);
4051 if (request == REQ_VIEW_TREE)
4052 view->lineno = tree_lineno;
4058 tree_select(struct view *view, struct line *line)
4060 struct tree_entry *entry = line->data;
4062 if (line->type == LINE_TREE_FILE) {
4063 string_copy_rev(ref_blob, entry->id);
4064 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4066 } else if (line->type != LINE_TREE_DIR) {
4070 string_copy_rev(view->ref, entry->id);
4073 static const char *tree_argv[SIZEOF_ARG] = {
4074 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4077 static struct view_ops tree_ops = {
4089 blob_read(struct view *view, char *line)
4093 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4097 blob_request(struct view *view, enum request request, struct line *line)
4104 return pager_request(view, request, line);
4108 static const char *blob_argv[SIZEOF_ARG] = {
4109 "git", "cat-file", "blob", "%(blob)", NULL
4112 static struct view_ops blob_ops = {
4126 * Loading the blame view is a two phase job:
4128 * 1. File content is read either using opt_file from the
4129 * filesystem or using git-cat-file.
4130 * 2. Then blame information is incrementally added by
4131 * reading output from git-blame.
4134 static const char *blame_head_argv[] = {
4135 "git", "blame", "--incremental", "--", "%(file)", NULL
4138 static const char *blame_ref_argv[] = {
4139 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4142 static const char *blame_cat_file_argv[] = {
4143 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4146 struct blame_commit {
4147 char id[SIZEOF_REV]; /* SHA1 ID. */
4148 char title[128]; /* First line of the commit message. */
4149 char author[75]; /* Author of the commit. */
4150 struct tm time; /* Date from the author ident. */
4151 char filename[128]; /* Name of file. */
4152 bool has_previous; /* Was a "previous" line detected. */
4156 struct blame_commit *commit;
4161 blame_open(struct view *view)
4163 if (*opt_ref || !io_open(&view->io, opt_file)) {
4164 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4168 setup_update(view, opt_file);
4169 string_format(view->ref, "%s ...", opt_file);
4174 static struct blame_commit *
4175 get_blame_commit(struct view *view, const char *id)
4179 for (i = 0; i < view->lines; i++) {
4180 struct blame *blame = view->line[i].data;
4185 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4186 return blame->commit;
4190 struct blame_commit *commit = calloc(1, sizeof(*commit));
4193 string_ncopy(commit->id, id, SIZEOF_REV);
4199 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4201 const char *pos = *posref;
4204 pos = strchr(pos + 1, ' ');
4205 if (!pos || !isdigit(pos[1]))
4207 *number = atoi(pos + 1);
4208 if (*number < min || *number > max)
4215 static struct blame_commit *
4216 parse_blame_commit(struct view *view, const char *text, int *blamed)
4218 struct blame_commit *commit;
4219 struct blame *blame;
4220 const char *pos = text + SIZEOF_REV - 1;
4224 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
4227 if (!parse_number(&pos, &lineno, 1, view->lines) ||
4228 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4231 commit = get_blame_commit(view, text);
4237 struct line *line = &view->line[lineno + group - 1];
4240 blame->commit = commit;
4248 blame_read_file(struct view *view, const char *line, bool *read_file)
4251 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4254 if (view->lines == 0 && !view->parent)
4255 die("No blame exist for %s", view->vid);
4257 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4258 report("Failed to load blame data");
4262 done_io(view->pipe);
4268 size_t linelen = strlen(line);
4269 struct blame *blame = malloc(sizeof(*blame) + linelen);
4271 blame->commit = NULL;
4272 strncpy(blame->text, line, linelen);
4273 blame->text[linelen] = 0;
4274 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4279 match_blame_header(const char *name, char **line)
4281 size_t namelen = strlen(name);
4282 bool matched = !strncmp(name, *line, namelen);
4291 blame_read(struct view *view, char *line)
4293 static struct blame_commit *commit = NULL;
4294 static int blamed = 0;
4295 static time_t author_time;
4296 static bool read_file = TRUE;
4299 return blame_read_file(view, line, &read_file);
4306 string_format(view->ref, "%s", view->vid);
4307 if (view_is_displayed(view)) {
4308 update_view_title(view);
4309 redraw_view_from(view, 0);
4315 commit = parse_blame_commit(view, line, &blamed);
4316 string_format(view->ref, "%s %2d%%", view->vid,
4317 view->lines ? blamed * 100 / view->lines : 0);
4319 } else if (match_blame_header("author ", &line)) {
4320 string_ncopy(commit->author, line, strlen(line));
4322 } else if (match_blame_header("author-time ", &line)) {
4323 author_time = (time_t) atol(line);
4325 } else if (match_blame_header("author-tz ", &line)) {
4328 tz = ('0' - line[1]) * 60 * 60 * 10;
4329 tz += ('0' - line[2]) * 60 * 60;
4330 tz += ('0' - line[3]) * 60;
4331 tz += ('0' - line[4]) * 60;
4337 gmtime_r(&author_time, &commit->time);
4339 } else if (match_blame_header("summary ", &line)) {
4340 string_ncopy(commit->title, line, strlen(line));
4342 } else if (match_blame_header("previous ", &line)) {
4343 commit->has_previous = TRUE;
4345 } else if (match_blame_header("filename ", &line)) {
4346 string_ncopy(commit->filename, line, strlen(line));
4354 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4356 struct blame *blame = line->data;
4357 struct tm *time = NULL;
4358 const char *id = NULL, *author = NULL;
4360 if (blame->commit && *blame->commit->filename) {
4361 id = blame->commit->id;
4362 author = blame->commit->author;
4363 time = &blame->commit->time;
4366 if (opt_date && draw_date(view, time))
4370 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
4373 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4376 if (draw_lineno(view, lineno))
4379 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4384 check_blame_commit(struct blame *blame)
4387 report("Commit data not loaded yet");
4388 else if (!strcmp(blame->commit->id, NULL_ID))
4389 report("No commit exist for the selected line");
4396 blame_request(struct view *view, enum request request, struct line *line)
4398 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4399 struct blame *blame = line->data;
4402 case REQ_VIEW_BLAME:
4403 if (check_blame_commit(blame)) {
4404 string_copy(opt_ref, blame->commit->id);
4405 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4410 if (check_blame_commit(blame) &&
4411 select_commit_parent(blame->commit->id, opt_ref))
4412 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4416 if (!blame->commit) {
4417 report("No commit loaded yet");
4421 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4422 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4425 if (!strcmp(blame->commit->id, NULL_ID)) {
4426 struct view *diff = VIEW(REQ_VIEW_DIFF);
4427 const char *diff_index_argv[] = {
4428 "git", "diff-index", "--root", "--patch-with-stat",
4429 "-C", "-M", "HEAD", "--", view->vid, NULL
4432 if (!blame->commit->has_previous) {
4433 diff_index_argv[1] = "diff";
4434 diff_index_argv[2] = "--no-color";
4435 diff_index_argv[6] = "--";
4436 diff_index_argv[7] = "/dev/null";
4439 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4440 report("Failed to allocate diff command");
4443 flags |= OPEN_PREPARED;
4446 open_view(view, REQ_VIEW_DIFF, flags);
4447 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4448 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4459 blame_grep(struct view *view, struct line *line)
4461 struct blame *blame = line->data;
4462 struct blame_commit *commit = blame->commit;
4465 #define MATCH(text, on) \
4466 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4469 char buf[DATE_COLS + 1];
4471 if (MATCH(commit->title, 1) ||
4472 MATCH(commit->author, opt_author) ||
4473 MATCH(commit->id, opt_date))
4476 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4481 return MATCH(blame->text, 1);
4487 blame_select(struct view *view, struct line *line)
4489 struct blame *blame = line->data;
4490 struct blame_commit *commit = blame->commit;
4495 if (!strcmp(commit->id, NULL_ID))
4496 string_ncopy(ref_commit, "HEAD", 4);
4498 string_copy_rev(ref_commit, commit->id);
4501 static struct view_ops blame_ops = {
4520 char rev[SIZEOF_REV];
4521 char name[SIZEOF_STR];
4525 char rev[SIZEOF_REV];
4526 char name[SIZEOF_STR];
4530 static char status_onbranch[SIZEOF_STR];
4531 static struct status stage_status;
4532 static enum line_type stage_line_type;
4533 static size_t stage_chunks;
4534 static int *stage_chunk;
4536 /* This should work even for the "On branch" line. */
4538 status_has_none(struct view *view, struct line *line)
4540 return line < view->line + view->lines && !line[1].data;
4543 /* Get fields from the diff line:
4544 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4547 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4549 const char *old_mode = buf + 1;
4550 const char *new_mode = buf + 8;
4551 const char *old_rev = buf + 15;
4552 const char *new_rev = buf + 56;
4553 const char *status = buf + 97;
4556 old_mode[-1] != ':' ||
4557 new_mode[-1] != ' ' ||
4558 old_rev[-1] != ' ' ||
4559 new_rev[-1] != ' ' ||
4563 file->status = *status;
4565 string_copy_rev(file->old.rev, old_rev);
4566 string_copy_rev(file->new.rev, new_rev);
4568 file->old.mode = strtoul(old_mode, NULL, 8);
4569 file->new.mode = strtoul(new_mode, NULL, 8);
4571 file->old.name[0] = file->new.name[0] = 0;
4577 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4579 struct status *file = NULL;
4580 struct status *unmerged = NULL;
4584 if (!run_io(&io, argv, NULL, IO_RD))
4587 add_line_data(view, NULL, type);
4589 while ((buf = io_get(&io, 0, TRUE))) {
4591 file = calloc(1, sizeof(*file));
4592 if (!file || !add_line_data(view, file, type))
4596 /* Parse diff info part. */
4598 file->status = status;
4600 string_copy(file->old.rev, NULL_ID);
4602 } else if (!file->status) {
4603 if (!status_get_diff(file, buf, strlen(buf)))
4606 buf = io_get(&io, 0, TRUE);
4610 /* Collapse all 'M'odified entries that follow a
4611 * associated 'U'nmerged entry. */
4612 if (file->status == 'U') {
4615 } else if (unmerged) {
4616 int collapse = !strcmp(buf, unmerged->new.name);
4628 /* Grab the old name for rename/copy. */
4629 if (!*file->old.name &&
4630 (file->status == 'R' || file->status == 'C')) {
4631 string_ncopy(file->old.name, buf, strlen(buf));
4633 buf = io_get(&io, 0, TRUE);
4638 /* git-ls-files just delivers a NUL separated list of
4639 * file names similar to the second half of the
4640 * git-diff-* output. */
4641 string_ncopy(file->new.name, buf, strlen(buf));
4642 if (!*file->old.name)
4643 string_copy(file->old.name, file->new.name);
4647 if (io_error(&io)) {
4653 if (!view->line[view->lines - 1].data)
4654 add_line_data(view, NULL, LINE_STAT_NONE);
4660 /* Don't show unmerged entries in the staged section. */
4661 static const char *status_diff_index_argv[] = {
4662 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4663 "--cached", "-M", "HEAD", NULL
4666 static const char *status_diff_files_argv[] = {
4667 "git", "diff-files", "-z", NULL
4670 static const char *status_list_other_argv[] = {
4671 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4674 static const char *status_list_no_head_argv[] = {
4675 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4678 static const char *update_index_argv[] = {
4679 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4682 /* Restore the previous line number to stay in the context or select a
4683 * line with something that can be updated. */
4685 status_restore(struct view *view)
4687 if (view->p_lineno >= view->lines)
4688 view->p_lineno = view->lines - 1;
4689 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4691 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4694 /* If the above fails, always skip the "On branch" line. */
4695 if (view->p_lineno < view->lines)
4696 view->lineno = view->p_lineno;
4700 if (view->lineno < view->offset)
4701 view->offset = view->lineno;
4702 else if (view->offset + view->height <= view->lineno)
4703 view->offset = view->lineno - view->height + 1;
4705 view->p_restore = FALSE;
4708 /* First parse staged info using git-diff-index(1), then parse unstaged
4709 * info using git-diff-files(1), and finally untracked files using
4710 * git-ls-files(1). */
4712 status_open(struct view *view)
4716 add_line_data(view, NULL, LINE_STAT_HEAD);
4717 if (is_initial_commit())
4718 string_copy(status_onbranch, "Initial commit");
4719 else if (!*opt_head)
4720 string_copy(status_onbranch, "Not currently on any branch");
4721 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4724 run_io_bg(update_index_argv);
4726 if (is_initial_commit()) {
4727 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4729 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4733 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4734 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4737 /* Restore the exact position or use the specialized restore
4739 if (!view->p_restore)
4740 status_restore(view);
4745 status_draw(struct view *view, struct line *line, unsigned int lineno)
4747 struct status *status = line->data;
4748 enum line_type type;
4752 switch (line->type) {
4753 case LINE_STAT_STAGED:
4754 type = LINE_STAT_SECTION;
4755 text = "Changes to be committed:";
4758 case LINE_STAT_UNSTAGED:
4759 type = LINE_STAT_SECTION;
4760 text = "Changed but not updated:";
4763 case LINE_STAT_UNTRACKED:
4764 type = LINE_STAT_SECTION;
4765 text = "Untracked files:";
4768 case LINE_STAT_NONE:
4769 type = LINE_DEFAULT;
4770 text = " (no files)";
4773 case LINE_STAT_HEAD:
4774 type = LINE_STAT_HEAD;
4775 text = status_onbranch;
4782 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4784 buf[0] = status->status;
4785 if (draw_text(view, line->type, buf, TRUE))
4787 type = LINE_DEFAULT;
4788 text = status->new.name;
4791 draw_text(view, type, text, TRUE);
4796 status_enter(struct view *view, struct line *line)
4798 struct status *status = line->data;
4799 const char *oldpath = status ? status->old.name : NULL;
4800 /* Diffs for unmerged entries are empty when passing the new
4801 * path, so leave it empty. */
4802 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4804 enum open_flags split;
4805 struct view *stage = VIEW(REQ_VIEW_STAGE);
4807 if (line->type == LINE_STAT_NONE ||
4808 (!status && line[1].type == LINE_STAT_NONE)) {
4809 report("No file to diff");
4813 switch (line->type) {
4814 case LINE_STAT_STAGED:
4815 if (is_initial_commit()) {
4816 const char *no_head_diff_argv[] = {
4817 "git", "diff", "--no-color", "--patch-with-stat",
4818 "--", "/dev/null", newpath, NULL
4821 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4824 const char *index_show_argv[] = {
4825 "git", "diff-index", "--root", "--patch-with-stat",
4826 "-C", "-M", "--cached", "HEAD", "--",
4827 oldpath, newpath, NULL
4830 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4835 info = "Staged changes to %s";
4837 info = "Staged changes";
4840 case LINE_STAT_UNSTAGED:
4842 const char *files_show_argv[] = {
4843 "git", "diff-files", "--root", "--patch-with-stat",
4844 "-C", "-M", "--", oldpath, newpath, NULL
4847 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4850 info = "Unstaged changes to %s";
4852 info = "Unstaged changes";
4855 case LINE_STAT_UNTRACKED:
4857 report("No file to show");
4861 if (!suffixcmp(status->new.name, -1, "/")) {
4862 report("Cannot display a directory");
4866 if (!prepare_update_file(stage, newpath))
4868 info = "Untracked file %s";
4871 case LINE_STAT_HEAD:
4875 die("line type %d not handled in switch", line->type);
4878 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4879 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
4880 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4882 stage_status = *status;
4884 memset(&stage_status, 0, sizeof(stage_status));
4887 stage_line_type = line->type;
4889 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4896 status_exists(struct status *status, enum line_type type)
4898 struct view *view = VIEW(REQ_VIEW_STATUS);
4899 unsigned long lineno;
4901 for (lineno = 0; lineno < view->lines; lineno++) {
4902 struct line *line = &view->line[lineno];
4903 struct status *pos = line->data;
4905 if (line->type != type)
4907 if (!pos && (!status || !status->status) && line[1].data) {
4908 select_view_line(view, lineno);
4911 if (pos && !strcmp(status->new.name, pos->new.name)) {
4912 select_view_line(view, lineno);
4922 status_update_prepare(struct io *io, enum line_type type)
4924 const char *staged_argv[] = {
4925 "git", "update-index", "-z", "--index-info", NULL
4927 const char *others_argv[] = {
4928 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4932 case LINE_STAT_STAGED:
4933 return run_io(io, staged_argv, opt_cdup, IO_WR);
4935 case LINE_STAT_UNSTAGED:
4936 return run_io(io, others_argv, opt_cdup, IO_WR);
4938 case LINE_STAT_UNTRACKED:
4939 return run_io(io, others_argv, NULL, IO_WR);
4942 die("line type %d not handled in switch", type);
4948 status_update_write(struct io *io, struct status *status, enum line_type type)
4950 char buf[SIZEOF_STR];
4954 case LINE_STAT_STAGED:
4955 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4958 status->old.name, 0))
4962 case LINE_STAT_UNSTAGED:
4963 case LINE_STAT_UNTRACKED:
4964 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4969 die("line type %d not handled in switch", type);
4972 return io_write(io, buf, bufsize);
4976 status_update_file(struct status *status, enum line_type type)
4981 if (!status_update_prepare(&io, type))
4984 result = status_update_write(&io, status, type);
4990 status_update_files(struct view *view, struct line *line)
4994 struct line *pos = view->line + view->lines;
4998 if (!status_update_prepare(&io, line->type))
5001 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5004 for (file = 0, done = 0; result && file < files; line++, file++) {
5005 int almost_done = file * 100 / files;
5007 if (almost_done > done) {
5009 string_format(view->ref, "updating file %u of %u (%d%% done)",
5011 update_view_title(view);
5013 result = status_update_write(&io, line->data, line->type);
5021 status_update(struct view *view)
5023 struct line *line = &view->line[view->lineno];
5025 assert(view->lines);
5028 /* This should work even for the "On branch" line. */
5029 if (line < view->line + view->lines && !line[1].data) {
5030 report("Nothing to update");
5034 if (!status_update_files(view, line + 1)) {
5035 report("Failed to update file status");
5039 } else if (!status_update_file(line->data, line->type)) {
5040 report("Failed to update file status");
5048 status_revert(struct status *status, enum line_type type, bool has_none)
5050 if (!status || type != LINE_STAT_UNSTAGED) {
5051 if (type == LINE_STAT_STAGED) {
5052 report("Cannot revert changes to staged files");
5053 } else if (type == LINE_STAT_UNTRACKED) {
5054 report("Cannot revert changes to untracked files");
5055 } else if (has_none) {
5056 report("Nothing to revert");
5058 report("Cannot revert changes to multiple files");
5063 const char *checkout_argv[] = {
5064 "git", "checkout", "--", status->old.name, NULL
5067 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5069 return run_io_fg(checkout_argv, opt_cdup);
5074 status_request(struct view *view, enum request request, struct line *line)
5076 struct status *status = line->data;
5079 case REQ_STATUS_UPDATE:
5080 if (!status_update(view))
5084 case REQ_STATUS_REVERT:
5085 if (!status_revert(status, line->type, status_has_none(view, line)))
5089 case REQ_STATUS_MERGE:
5090 if (!status || status->status != 'U') {
5091 report("Merging only possible for files with unmerged status ('U').");
5094 open_mergetool(status->new.name);
5100 if (status->status == 'D') {
5101 report("File has been deleted.");
5105 open_editor(status->status != '?', status->new.name);
5108 case REQ_VIEW_BLAME:
5110 string_copy(opt_file, status->new.name);
5116 /* After returning the status view has been split to
5117 * show the stage view. No further reloading is
5119 status_enter(view, line);
5123 /* Simply reload the view. */
5130 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5136 status_select(struct view *view, struct line *line)
5138 struct status *status = line->data;
5139 char file[SIZEOF_STR] = "all files";
5143 if (status && !string_format(file, "'%s'", status->new.name))
5146 if (!status && line[1].type == LINE_STAT_NONE)
5149 switch (line->type) {
5150 case LINE_STAT_STAGED:
5151 text = "Press %s to unstage %s for commit";
5154 case LINE_STAT_UNSTAGED:
5155 text = "Press %s to stage %s for commit";
5158 case LINE_STAT_UNTRACKED:
5159 text = "Press %s to stage %s for addition";
5162 case LINE_STAT_HEAD:
5163 case LINE_STAT_NONE:
5164 text = "Nothing to update";
5168 die("line type %d not handled in switch", line->type);
5171 if (status && status->status == 'U') {
5172 text = "Press %s to resolve conflict in %s";
5173 key = get_key(REQ_STATUS_MERGE);
5176 key = get_key(REQ_STATUS_UPDATE);
5179 string_format(view->ref, text, key, file);
5183 status_grep(struct view *view, struct line *line)
5185 struct status *status = line->data;
5186 enum { S_STATUS, S_NAME, S_END } state;
5193 for (state = S_STATUS; state < S_END; state++) {
5197 case S_NAME: text = status->new.name; break;
5199 buf[0] = status->status;
5207 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5214 static struct view_ops status_ops = {
5227 stage_diff_write(struct io *io, struct line *line, struct line *end)
5229 while (line < end) {
5230 if (!io_write(io, line->data, strlen(line->data)) ||
5231 !io_write(io, "\n", 1))
5234 if (line->type == LINE_DIFF_CHUNK ||
5235 line->type == LINE_DIFF_HEADER)
5242 static struct line *
5243 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5245 for (; view->line < line; line--)
5246 if (line->type == type)
5253 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5255 const char *apply_argv[SIZEOF_ARG] = {
5256 "git", "apply", "--whitespace=nowarn", NULL
5258 struct line *diff_hdr;
5262 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5267 apply_argv[argc++] = "--cached";
5268 if (revert || stage_line_type == LINE_STAT_STAGED)
5269 apply_argv[argc++] = "-R";
5270 apply_argv[argc++] = "-";
5271 apply_argv[argc++] = NULL;
5272 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5275 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5276 !stage_diff_write(&io, chunk, view->line + view->lines))
5280 run_io_bg(update_index_argv);
5282 return chunk ? TRUE : FALSE;
5286 stage_update(struct view *view, struct line *line)
5288 struct line *chunk = NULL;
5290 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5291 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5294 if (!stage_apply_chunk(view, chunk, FALSE)) {
5295 report("Failed to apply chunk");
5299 } else if (!stage_status.status) {
5300 view = VIEW(REQ_VIEW_STATUS);
5302 for (line = view->line; line < view->line + view->lines; line++)
5303 if (line->type == stage_line_type)
5306 if (!status_update_files(view, line + 1)) {
5307 report("Failed to update files");
5311 } else if (!status_update_file(&stage_status, stage_line_type)) {
5312 report("Failed to update file");
5320 stage_revert(struct view *view, struct line *line)
5322 struct line *chunk = NULL;
5324 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5325 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5328 if (!prompt_yesno("Are you sure you want to revert changes?"))
5331 if (!stage_apply_chunk(view, chunk, TRUE)) {
5332 report("Failed to revert chunk");
5338 return status_revert(stage_status.status ? &stage_status : NULL,
5339 stage_line_type, FALSE);
5345 stage_next(struct view *view, struct line *line)
5349 if (!stage_chunks) {
5350 static size_t alloc = 0;
5353 for (line = view->line; line < view->line + view->lines; line++) {
5354 if (line->type != LINE_DIFF_CHUNK)
5357 tmp = realloc_items(stage_chunk, &alloc,
5358 stage_chunks, sizeof(*tmp));
5360 report("Allocation failure");
5365 stage_chunk[stage_chunks++] = line - view->line;
5369 for (i = 0; i < stage_chunks; i++) {
5370 if (stage_chunk[i] > view->lineno) {
5371 do_scroll_view(view, stage_chunk[i] - view->lineno);
5372 report("Chunk %d of %d", i + 1, stage_chunks);
5377 report("No next chunk found");
5381 stage_request(struct view *view, enum request request, struct line *line)
5384 case REQ_STATUS_UPDATE:
5385 if (!stage_update(view, line))
5389 case REQ_STATUS_REVERT:
5390 if (!stage_revert(view, line))
5394 case REQ_STAGE_NEXT:
5395 if (stage_line_type == LINE_STAT_UNTRACKED) {
5396 report("File is untracked; press %s to add",
5397 get_key(REQ_STATUS_UPDATE));
5400 stage_next(view, line);
5404 if (!stage_status.new.name[0])
5406 if (stage_status.status == 'D') {
5407 report("File has been deleted.");
5411 open_editor(stage_status.status != '?', stage_status.new.name);
5415 /* Reload everything ... */
5418 case REQ_VIEW_BLAME:
5419 if (stage_status.new.name[0]) {
5420 string_copy(opt_file, stage_status.new.name);
5426 return pager_request(view, request, line);
5432 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5433 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5435 /* Check whether the staged entry still exists, and close the
5436 * stage view if it doesn't. */
5437 if (!status_exists(&stage_status, stage_line_type)) {
5438 status_restore(VIEW(REQ_VIEW_STATUS));
5439 return REQ_VIEW_CLOSE;
5442 if (stage_line_type == LINE_STAT_UNTRACKED) {
5443 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5444 report("Cannot display a directory");
5448 if (!prepare_update_file(view, stage_status.new.name)) {
5449 report("Failed to open file: %s", strerror(errno));
5453 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5458 static struct view_ops stage_ops = {
5475 char id[SIZEOF_REV]; /* SHA1 ID. */
5476 char title[128]; /* First line of the commit message. */
5477 char author[75]; /* Author of the commit. */
5478 struct tm time; /* Date from the author ident. */
5479 struct ref **refs; /* Repository references. */
5480 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5481 size_t graph_size; /* The width of the graph array. */
5482 bool has_parents; /* Rewritten --parents seen. */
5485 /* Size of rev graph with no "padding" columns */
5486 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5489 struct rev_graph *prev, *next, *parents;
5490 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5492 struct commit *commit;
5494 unsigned int boundary:1;
5497 /* Parents of the commit being visualized. */
5498 static struct rev_graph graph_parents[4];
5500 /* The current stack of revisions on the graph. */
5501 static struct rev_graph graph_stacks[4] = {
5502 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5503 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5504 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5505 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5509 graph_parent_is_merge(struct rev_graph *graph)
5511 return graph->parents->size > 1;
5515 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5517 struct commit *commit = graph->commit;
5519 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5520 commit->graph[commit->graph_size++] = symbol;
5524 clear_rev_graph(struct rev_graph *graph)
5526 graph->boundary = 0;
5527 graph->size = graph->pos = 0;
5528 graph->commit = NULL;
5529 memset(graph->parents, 0, sizeof(*graph->parents));
5533 done_rev_graph(struct rev_graph *graph)
5535 if (graph_parent_is_merge(graph) &&
5536 graph->pos < graph->size - 1 &&
5537 graph->next->size == graph->size + graph->parents->size - 1) {
5538 size_t i = graph->pos + graph->parents->size - 1;
5540 graph->commit->graph_size = i * 2;
5541 while (i < graph->next->size - 1) {
5542 append_to_rev_graph(graph, ' ');
5543 append_to_rev_graph(graph, '\\');
5548 clear_rev_graph(graph);
5552 push_rev_graph(struct rev_graph *graph, const char *parent)
5556 /* "Collapse" duplicate parents lines.
5558 * FIXME: This needs to also update update the drawn graph but
5559 * for now it just serves as a method for pruning graph lines. */
5560 for (i = 0; i < graph->size; i++)
5561 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5564 if (graph->size < SIZEOF_REVITEMS) {
5565 string_copy_rev(graph->rev[graph->size++], parent);
5570 get_rev_graph_symbol(struct rev_graph *graph)
5574 if (graph->boundary)
5575 symbol = REVGRAPH_BOUND;
5576 else if (graph->parents->size == 0)
5577 symbol = REVGRAPH_INIT;
5578 else if (graph_parent_is_merge(graph))
5579 symbol = REVGRAPH_MERGE;
5580 else if (graph->pos >= graph->size)
5581 symbol = REVGRAPH_BRANCH;
5583 symbol = REVGRAPH_COMMIT;
5589 draw_rev_graph(struct rev_graph *graph)
5592 chtype separator, line;
5594 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5595 static struct rev_filler fillers[] = {
5601 chtype symbol = get_rev_graph_symbol(graph);
5602 struct rev_filler *filler;
5605 if (opt_line_graphics)
5606 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5608 filler = &fillers[DEFAULT];
5610 for (i = 0; i < graph->pos; i++) {
5611 append_to_rev_graph(graph, filler->line);
5612 if (graph_parent_is_merge(graph->prev) &&
5613 graph->prev->pos == i)
5614 filler = &fillers[RSHARP];
5616 append_to_rev_graph(graph, filler->separator);
5619 /* Place the symbol for this revision. */
5620 append_to_rev_graph(graph, symbol);
5622 if (graph->prev->size > graph->size)
5623 filler = &fillers[RDIAG];
5625 filler = &fillers[DEFAULT];
5629 for (; i < graph->size; i++) {
5630 append_to_rev_graph(graph, filler->separator);
5631 append_to_rev_graph(graph, filler->line);
5632 if (graph_parent_is_merge(graph->prev) &&
5633 i < graph->prev->pos + graph->parents->size)
5634 filler = &fillers[RSHARP];
5635 if (graph->prev->size > graph->size)
5636 filler = &fillers[LDIAG];
5639 if (graph->prev->size > graph->size) {
5640 append_to_rev_graph(graph, filler->separator);
5641 if (filler->line != ' ')
5642 append_to_rev_graph(graph, filler->line);
5646 /* Prepare the next rev graph */
5648 prepare_rev_graph(struct rev_graph *graph)
5652 /* First, traverse all lines of revisions up to the active one. */
5653 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5654 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5657 push_rev_graph(graph->next, graph->rev[graph->pos]);
5660 /* Interleave the new revision parent(s). */
5661 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5662 push_rev_graph(graph->next, graph->parents->rev[i]);
5664 /* Lastly, put any remaining revisions. */
5665 for (i = graph->pos + 1; i < graph->size; i++)
5666 push_rev_graph(graph->next, graph->rev[i]);
5670 update_rev_graph(struct view *view, struct rev_graph *graph)
5672 /* If this is the finalizing update ... */
5674 prepare_rev_graph(graph);
5676 /* Graph visualization needs a one rev look-ahead,
5677 * so the first update doesn't visualize anything. */
5678 if (!graph->prev->commit)
5681 if (view->lines > 2)
5682 view->line[view->lines - 3].dirty = 1;
5683 if (view->lines > 1)
5684 view->line[view->lines - 2].dirty = 1;
5685 draw_rev_graph(graph->prev);
5686 done_rev_graph(graph->prev->prev);
5694 static const char *main_argv[SIZEOF_ARG] = {
5695 "git", "log", "--no-color", "--pretty=raw", "--parents",
5696 "--topo-order", "%(head)", NULL
5700 main_draw(struct view *view, struct line *line, unsigned int lineno)
5702 struct commit *commit = line->data;
5704 if (!*commit->author)
5707 if (opt_date && draw_date(view, &commit->time))
5711 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5714 if (opt_rev_graph && commit->graph_size &&
5715 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5718 if (opt_show_refs && commit->refs) {
5722 enum line_type type;
5724 if (commit->refs[i]->head)
5725 type = LINE_MAIN_HEAD;
5726 else if (commit->refs[i]->ltag)
5727 type = LINE_MAIN_LOCAL_TAG;
5728 else if (commit->refs[i]->tag)
5729 type = LINE_MAIN_TAG;
5730 else if (commit->refs[i]->tracked)
5731 type = LINE_MAIN_TRACKED;
5732 else if (commit->refs[i]->remote)
5733 type = LINE_MAIN_REMOTE;
5735 type = LINE_MAIN_REF;
5737 if (draw_text(view, type, "[", TRUE) ||
5738 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5739 draw_text(view, type, "]", TRUE))
5742 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5744 } while (commit->refs[i++]->next);
5747 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5751 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5753 main_read(struct view *view, char *line)
5755 static struct rev_graph *graph = graph_stacks;
5756 enum line_type type;
5757 struct commit *commit;
5762 if (!view->lines && !view->parent)
5763 die("No revisions match the given arguments.");
5764 if (view->lines > 0) {
5765 commit = view->line[view->lines - 1].data;
5766 view->line[view->lines - 1].dirty = 1;
5767 if (!*commit->author) {
5770 graph->commit = NULL;
5773 update_rev_graph(view, graph);
5775 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5776 clear_rev_graph(&graph_stacks[i]);
5780 type = get_line_type(line);
5781 if (type == LINE_COMMIT) {
5782 commit = calloc(1, sizeof(struct commit));
5786 line += STRING_SIZE("commit ");
5788 graph->boundary = 1;
5792 string_copy_rev(commit->id, line);
5793 commit->refs = get_refs(commit->id);
5794 graph->commit = commit;
5795 add_line_data(view, commit, LINE_MAIN_COMMIT);
5797 while ((line = strchr(line, ' '))) {
5799 push_rev_graph(graph->parents, line);
5800 commit->has_parents = TRUE;
5807 commit = view->line[view->lines - 1].data;
5811 if (commit->has_parents)
5813 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5817 parse_author_line(line + STRING_SIZE("author "),
5818 commit->author, sizeof(commit->author),
5820 update_rev_graph(view, graph);
5821 graph = graph->next;
5825 /* Fill in the commit title if it has not already been set. */
5826 if (commit->title[0])
5829 /* Require titles to start with a non-space character at the
5830 * offset used by git log. */
5831 if (strncmp(line, " ", 4))
5834 /* Well, if the title starts with a whitespace character,
5835 * try to be forgiving. Otherwise we end up with no title. */
5836 while (isspace(*line))
5840 /* FIXME: More graceful handling of titles; append "..." to
5841 * shortened titles, etc. */
5843 string_ncopy(commit->title, line, strlen(line));
5844 view->line[view->lines - 1].dirty = 1;
5851 main_request(struct view *view, enum request request, struct line *line)
5853 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5857 open_view(view, REQ_VIEW_DIFF, flags);
5861 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5871 grep_refs(struct ref **refs, regex_t *regex)
5879 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5881 } while (refs[i++]->next);
5887 main_grep(struct view *view, struct line *line)
5889 struct commit *commit = line->data;
5890 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5891 char buf[DATE_COLS + 1];
5894 for (state = S_TITLE; state < S_END; state++) {
5898 case S_TITLE: text = commit->title; break;
5902 text = commit->author;
5907 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5914 if (grep_refs(commit->refs, view->regex) == TRUE)
5921 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5929 main_select(struct view *view, struct line *line)
5931 struct commit *commit = line->data;
5933 string_copy_rev(view->ref, commit->id);
5934 string_copy_rev(ref_commit, view->ref);
5937 static struct view_ops main_ops = {
5950 * Unicode / UTF-8 handling
5952 * NOTE: Much of the following code for dealing with unicode is derived from
5953 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5954 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5957 /* I've (over)annotated a lot of code snippets because I am not entirely
5958 * confident that the approach taken by this small UTF-8 interface is correct.
5962 unicode_width(unsigned long c)
5965 (c <= 0x115f /* Hangul Jamo */
5968 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5970 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5971 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5972 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5973 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5974 || (c >= 0xffe0 && c <= 0xffe6)
5975 || (c >= 0x20000 && c <= 0x2fffd)
5976 || (c >= 0x30000 && c <= 0x3fffd)))
5980 return opt_tab_size;
5985 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5986 * Illegal bytes are set one. */
5987 static const unsigned char utf8_bytes[256] = {
5988 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,
5989 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,
5990 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,
5991 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,
5992 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,
5993 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,
5994 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,
5995 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,
5998 /* Decode UTF-8 multi-byte representation into a unicode character. */
5999 static inline unsigned long
6000 utf8_to_unicode(const char *string, size_t length)
6002 unsigned long unicode;
6006 unicode = string[0];
6009 unicode = (string[0] & 0x1f) << 6;
6010 unicode += (string[1] & 0x3f);
6013 unicode = (string[0] & 0x0f) << 12;
6014 unicode += ((string[1] & 0x3f) << 6);
6015 unicode += (string[2] & 0x3f);
6018 unicode = (string[0] & 0x0f) << 18;
6019 unicode += ((string[1] & 0x3f) << 12);
6020 unicode += ((string[2] & 0x3f) << 6);
6021 unicode += (string[3] & 0x3f);
6024 unicode = (string[0] & 0x0f) << 24;
6025 unicode += ((string[1] & 0x3f) << 18);
6026 unicode += ((string[2] & 0x3f) << 12);
6027 unicode += ((string[3] & 0x3f) << 6);
6028 unicode += (string[4] & 0x3f);
6031 unicode = (string[0] & 0x01) << 30;
6032 unicode += ((string[1] & 0x3f) << 24);
6033 unicode += ((string[2] & 0x3f) << 18);
6034 unicode += ((string[3] & 0x3f) << 12);
6035 unicode += ((string[4] & 0x3f) << 6);
6036 unicode += (string[5] & 0x3f);
6039 die("Invalid unicode length");
6042 /* Invalid characters could return the special 0xfffd value but NUL
6043 * should be just as good. */
6044 return unicode > 0xffff ? 0 : unicode;
6047 /* Calculates how much of string can be shown within the given maximum width
6048 * and sets trimmed parameter to non-zero value if all of string could not be
6049 * shown. If the reserve flag is TRUE, it will reserve at least one
6050 * trailing character, which can be useful when drawing a delimiter.
6052 * Returns the number of bytes to output from string to satisfy max_width. */
6054 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
6056 const char *start = string;
6057 const char *end = strchr(string, '\0');
6058 unsigned char last_bytes = 0;
6059 size_t last_ucwidth = 0;
6064 while (string < end) {
6065 int c = *(unsigned char *) string;
6066 unsigned char bytes = utf8_bytes[c];
6068 unsigned long unicode;
6070 if (string + bytes > end)
6073 /* Change representation to figure out whether
6074 * it is a single- or double-width character. */
6076 unicode = utf8_to_unicode(string, bytes);
6077 /* FIXME: Graceful handling of invalid unicode character. */
6081 ucwidth = unicode_width(unicode);
6083 if (*width > max_width) {
6086 if (reserve && *width == max_width) {
6087 string -= last_bytes;
6088 *width -= last_ucwidth;
6095 last_ucwidth = ucwidth;
6098 return string - start;
6106 /* Whether or not the curses interface has been initialized. */
6107 static bool cursed = FALSE;
6109 /* The status window is used for polling keystrokes. */
6110 static WINDOW *status_win;
6112 static bool status_empty = FALSE;
6114 /* Update status and title window. */
6116 report(const char *msg, ...)
6118 struct view *view = display[current_view];
6124 char buf[SIZEOF_STR];
6127 va_start(args, msg);
6128 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6129 buf[sizeof(buf) - 1] = 0;
6130 buf[sizeof(buf) - 2] = '.';
6131 buf[sizeof(buf) - 3] = '.';
6132 buf[sizeof(buf) - 4] = '.';
6138 if (!status_empty || *msg) {
6141 va_start(args, msg);
6143 wmove(status_win, 0, 0);
6145 vwprintw(status_win, msg, args);
6146 status_empty = FALSE;
6148 status_empty = TRUE;
6150 wclrtoeol(status_win);
6151 wrefresh(status_win);
6156 update_view_title(view);
6157 update_display_cursor(view);
6160 /* Controls when nodelay should be in effect when polling user input. */
6162 set_nonblocking_input(bool loading)
6164 static unsigned int loading_views;
6166 if ((loading == FALSE && loading_views-- == 1) ||
6167 (loading == TRUE && loading_views++ == 0))
6168 nodelay(status_win, loading);
6176 /* Initialize the curses library */
6177 if (isatty(STDIN_FILENO)) {
6178 cursed = !!initscr();
6181 /* Leave stdin and stdout alone when acting as a pager. */
6182 opt_tty = fopen("/dev/tty", "r+");
6184 die("Failed to open /dev/tty");
6185 cursed = !!newterm(NULL, opt_tty, opt_tty);
6189 die("Failed to initialize curses");
6191 nonl(); /* Tell curses not to do NL->CR/NL on output */
6192 cbreak(); /* Take input chars one at a time, no wait for \n */
6193 noecho(); /* Don't echo input */
6194 leaveok(stdscr, TRUE);
6199 getmaxyx(stdscr, y, x);
6200 status_win = newwin(1, 0, y - 1, 0);
6202 die("Failed to create status window");
6204 /* Enable keyboard mapping */
6205 keypad(status_win, TRUE);
6206 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6208 TABSIZE = opt_tab_size;
6209 if (opt_line_graphics) {
6210 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6215 get_input(bool prompting)
6224 foreach_view (view, i)
6227 /* Refresh, accept single keystroke of input */
6228 key = wgetch(status_win);
6230 /* wgetch() with nodelay() enabled returns ERR when
6231 * there's no input. */
6235 } else if (key == KEY_RESIZE) {
6238 getmaxyx(stdscr, height, width);
6240 /* Resize the status view and let the view driver take
6241 * care of resizing the displayed views. */
6243 redraw_display(TRUE);
6244 wresize(status_win, 1, width);
6245 mvwin(status_win, height - 1, 0);
6246 wrefresh(status_win);
6256 prompt_input(const char *prompt, input_handler handler, void *data)
6258 enum input_status status = INPUT_OK;
6259 static char buf[SIZEOF_STR];
6264 while (status == INPUT_OK || status == INPUT_SKIP) {
6267 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6268 wclrtoeol(status_win);
6270 key = get_input(TRUE);
6275 status = pos ? INPUT_STOP : INPUT_CANCEL;
6282 status = INPUT_CANCEL;
6286 status = INPUT_CANCEL;
6290 if (pos >= sizeof(buf)) {
6291 report("Input string too long");
6295 status = handler(data, buf, key);
6296 if (status == INPUT_OK)
6297 buf[pos++] = (char) key;
6301 /* Clear the status window */
6302 status_empty = FALSE;
6305 if (status == INPUT_CANCEL)
6313 static enum input_status
6314 prompt_yesno_handler(void *data, char *buf, int c)
6316 if (c == 'y' || c == 'Y')
6318 if (c == 'n' || c == 'N')
6319 return INPUT_CANCEL;
6324 prompt_yesno(const char *prompt)
6326 char prompt2[SIZEOF_STR];
6328 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6331 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6334 static enum input_status
6335 read_prompt_handler(void *data, char *buf, int c)
6337 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6341 read_prompt(const char *prompt)
6343 return prompt_input(prompt, read_prompt_handler, NULL);
6347 * Repository properties
6351 git_properties(const char **argv, const char *separators,
6352 int (*read_property)(char *, size_t, char *, size_t))
6356 if (init_io_rd(&io, argv, NULL, FORMAT_NONE))
6357 return read_properties(&io, separators, read_property);
6361 static struct ref *refs = NULL;
6362 static size_t refs_alloc = 0;
6363 static size_t refs_size = 0;
6365 /* Id <-> ref store */
6366 static struct ref ***id_refs = NULL;
6367 static size_t id_refs_alloc = 0;
6368 static size_t id_refs_size = 0;
6371 compare_refs(const void *ref1_, const void *ref2_)
6373 const struct ref *ref1 = *(const struct ref **)ref1_;
6374 const struct ref *ref2 = *(const struct ref **)ref2_;
6376 if (ref1->tag != ref2->tag)
6377 return ref2->tag - ref1->tag;
6378 if (ref1->ltag != ref2->ltag)
6379 return ref2->ltag - ref2->ltag;
6380 if (ref1->head != ref2->head)
6381 return ref2->head - ref1->head;
6382 if (ref1->tracked != ref2->tracked)
6383 return ref2->tracked - ref1->tracked;
6384 if (ref1->remote != ref2->remote)
6385 return ref2->remote - ref1->remote;
6386 return strcmp(ref1->name, ref2->name);
6389 static struct ref **
6390 get_refs(const char *id)
6392 struct ref ***tmp_id_refs;
6393 struct ref **ref_list = NULL;
6394 size_t ref_list_alloc = 0;
6395 size_t ref_list_size = 0;
6398 for (i = 0; i < id_refs_size; i++)
6399 if (!strcmp(id, id_refs[i][0]->id))
6402 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6407 id_refs = tmp_id_refs;
6409 for (i = 0; i < refs_size; i++) {
6412 if (strcmp(id, refs[i].id))
6415 tmp = realloc_items(ref_list, &ref_list_alloc,
6416 ref_list_size + 1, sizeof(*ref_list));
6424 ref_list[ref_list_size] = &refs[i];
6425 /* XXX: The properties of the commit chains ensures that we can
6426 * safely modify the shared ref. The repo references will
6427 * always be similar for the same id. */
6428 ref_list[ref_list_size]->next = 1;
6434 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6435 ref_list[ref_list_size - 1]->next = 0;
6436 id_refs[id_refs_size++] = ref_list;
6443 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6448 bool remote = FALSE;
6449 bool tracked = FALSE;
6450 bool check_replace = FALSE;
6453 if (!prefixcmp(name, "refs/tags/")) {
6454 if (!suffixcmp(name, namelen, "^{}")) {
6457 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6458 check_replace = TRUE;
6464 namelen -= STRING_SIZE("refs/tags/");
6465 name += STRING_SIZE("refs/tags/");
6467 } else if (!prefixcmp(name, "refs/remotes/")) {
6469 namelen -= STRING_SIZE("refs/remotes/");
6470 name += STRING_SIZE("refs/remotes/");
6471 tracked = !strcmp(opt_remote, name);
6473 } else if (!prefixcmp(name, "refs/heads/")) {
6474 namelen -= STRING_SIZE("refs/heads/");
6475 name += STRING_SIZE("refs/heads/");
6476 head = !strncmp(opt_head, name, namelen);
6478 } else if (!strcmp(name, "HEAD")) {
6479 string_ncopy(opt_head_rev, id, idlen);
6483 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6484 /* it's an annotated tag, replace the previous sha1 with the
6485 * resolved commit id; relies on the fact git-ls-remote lists
6486 * the commit id of an annotated tag right before the commit id
6488 refs[refs_size - 1].ltag = ltag;
6489 string_copy_rev(refs[refs_size - 1].id, id);
6493 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6497 ref = &refs[refs_size++];
6498 ref->name = malloc(namelen + 1);
6502 strncpy(ref->name, name, namelen);
6503 ref->name[namelen] = 0;
6507 ref->remote = remote;
6508 ref->tracked = tracked;
6509 string_copy_rev(ref->id, id);
6517 static const char *ls_remote_argv[SIZEOF_ARG] = {
6518 "git", "ls-remote", ".", NULL
6520 static bool init = FALSE;
6523 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6530 while (refs_size > 0)
6531 free(refs[--refs_size].name);
6532 while (id_refs_size > 0)
6533 free(id_refs[--id_refs_size]);
6535 return git_properties(ls_remote_argv, "\t", read_ref);
6539 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6541 if (!strcmp(name, "i18n.commitencoding"))
6542 string_ncopy(opt_encoding, value, valuelen);
6544 if (!strcmp(name, "core.editor"))
6545 string_ncopy(opt_editor, value, valuelen);
6547 /* branch.<head>.remote */
6549 !strncmp(name, "branch.", 7) &&
6550 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6551 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6552 string_ncopy(opt_remote, value, valuelen);
6554 if (*opt_head && *opt_remote &&
6555 !strncmp(name, "branch.", 7) &&
6556 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6557 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6558 size_t from = strlen(opt_remote);
6560 if (!prefixcmp(value, "refs/heads/")) {
6561 value += STRING_SIZE("refs/heads/");
6562 valuelen -= STRING_SIZE("refs/heads/");
6565 if (!string_format_from(opt_remote, &from, "/%s", value))
6573 load_git_config(void)
6575 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6577 return git_properties(config_list_argv, "=", read_repo_config_option);
6581 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6583 if (!opt_git_dir[0]) {
6584 string_ncopy(opt_git_dir, name, namelen);
6586 } else if (opt_is_inside_work_tree == -1) {
6587 /* This can be 3 different values depending on the
6588 * version of git being used. If git-rev-parse does not
6589 * understand --is-inside-work-tree it will simply echo
6590 * the option else either "true" or "false" is printed.
6591 * Default to true for the unknown case. */
6592 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6594 } else if (*name == '.') {
6595 string_ncopy(opt_cdup, name, namelen);
6598 string_ncopy(opt_prefix, name, namelen);
6605 load_repo_info(void)
6607 const char *head_argv[] = {
6608 "git", "symbolic-ref", "HEAD", NULL
6610 const char *rev_parse_argv[] = {
6611 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6612 "--show-cdup", "--show-prefix", NULL
6615 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6616 chomp_string(opt_head);
6617 if (!prefixcmp(opt_head, "refs/heads/")) {
6618 char *offset = opt_head + STRING_SIZE("refs/heads/");
6620 memmove(opt_head, offset, strlen(offset) + 1);
6624 return git_properties(rev_parse_argv, "=", read_repo_info);
6628 read_properties(struct io *io, const char *separators,
6629 int (*read_property)(char *, size_t, char *, size_t))
6637 while (state == OK && (name = io_get(io, '\n', TRUE))) {
6642 name = chomp_string(name);
6643 namelen = strcspn(name, separators);
6645 if (name[namelen]) {
6647 value = chomp_string(name + namelen + 1);
6648 valuelen = strlen(value);
6655 state = read_property(name, namelen, value, valuelen);
6658 if (state != ERR && io_error(io))
6670 static void __NORETURN
6673 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6679 static void __NORETURN
6680 die(const char *err, ...)
6686 va_start(args, err);
6687 fputs("tig: ", stderr);
6688 vfprintf(stderr, err, args);
6689 fputs("\n", stderr);
6696 warn(const char *msg, ...)
6700 va_start(args, msg);
6701 fputs("tig warning: ", stderr);
6702 vfprintf(stderr, msg, args);
6703 fputs("\n", stderr);
6708 main(int argc, const char *argv[])
6710 const char **run_argv = NULL;
6712 enum request request;
6715 signal(SIGINT, quit);
6717 if (setlocale(LC_ALL, "")) {
6718 char *codeset = nl_langinfo(CODESET);
6720 string_ncopy(opt_codeset, codeset, strlen(codeset));
6723 if (load_repo_info() == ERR)
6724 die("Failed to load repo info.");
6726 if (load_options() == ERR)
6727 die("Failed to load user config.");
6729 if (load_git_config() == ERR)
6730 die("Failed to load repo config.");
6732 request = parse_options(argc, argv, &run_argv);
6733 if (request == REQ_NONE)
6736 /* Require a git repository unless when running in pager mode. */
6737 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6738 die("Not a git repository");
6740 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6743 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6744 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6745 if (opt_iconv == ICONV_NONE)
6746 die("Failed to initialize character set conversion");
6749 if (load_refs() == ERR)
6750 die("Failed to load refs.");
6752 foreach_view (view, i)
6753 argv_from_env(view->ops->argv, view->cmd_env);
6757 if (request == REQ_VIEW_PAGER || run_argv) {
6758 if (request == REQ_VIEW_PAGER)
6759 io_open(&VIEW(request)->io, "");
6760 else if (!prepare_update(VIEW(request), run_argv, NULL, FORMAT_NONE))
6761 die("Failed to format arguments");
6762 open_view(NULL, request, OPEN_PREPARED);
6766 while (view_driver(display[current_view], request)) {
6767 int key = get_input(FALSE);
6769 view = display[current_view];
6770 request = get_keybinding(view->keymap, key);
6772 /* Some low-level request handling. This keeps access to
6773 * status_win restricted. */
6777 char *cmd = read_prompt(":");
6780 struct view *next = VIEW(REQ_VIEW_PAGER);
6781 const char *argv[SIZEOF_ARG] = { "git" };
6784 /* When running random commands, initially show the
6785 * command in the title. However, it maybe later be
6786 * overwritten if a commit line is selected. */
6787 string_ncopy(next->ref, cmd, strlen(cmd));
6789 if (!argv_from_string(argv, &argc, cmd)) {
6790 report("Too many arguments");
6791 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6792 report("Failed to format command");
6794 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6802 case REQ_SEARCH_BACK:
6804 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6805 char *search = read_prompt(prompt);
6808 string_ncopy(opt_search, search, strlen(search));