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_display_cursor(struct view *view)
2092 /* Move the cursor to the right-most column of the cursor line.
2094 * XXX: This could turn out to be a bit expensive, but it ensures that
2095 * the cursor does not jump around. */
2097 wmove(view->win, view->lineno - view->offset, view->width - 1);
2098 wrefresh(view->win);
2103 update_view_title(struct view *view)
2105 char buf[SIZEOF_STR];
2106 char state[SIZEOF_STR];
2107 size_t bufpos = 0, statelen = 0;
2109 assert(view_is_displayed(view));
2111 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2112 unsigned int view_lines = view->offset + view->height;
2113 unsigned int lines = view->lines
2114 ? MIN(view_lines, view->lines) * 100 / view->lines
2117 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2126 time_t secs = time(NULL) - view->start_time;
2128 /* Three git seconds are a long time ... */
2130 string_format_from(state, &statelen, " loading %lds", secs);
2133 string_format_from(buf, &bufpos, "[%s]", view->name);
2134 if (*view->ref && bufpos < view->width) {
2135 size_t refsize = strlen(view->ref);
2136 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2138 if (minsize < view->width)
2139 refsize = view->width - minsize + 7;
2140 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2143 if (statelen && bufpos < view->width) {
2144 string_format_from(buf, &bufpos, "%s", state);
2147 if (view == display[current_view])
2148 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2150 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2152 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2153 wclrtoeol(view->title);
2154 wmove(view->title, 0, view->width - 1);
2157 wnoutrefresh(view->title);
2159 wrefresh(view->title);
2163 resize_display(void)
2166 struct view *base = display[0];
2167 struct view *view = display[1] ? display[1] : display[0];
2169 /* Setup window dimensions */
2171 getmaxyx(stdscr, base->height, base->width);
2173 /* Make room for the status window. */
2177 /* Horizontal split. */
2178 view->width = base->width;
2179 view->height = SCALE_SPLIT_VIEW(base->height);
2180 base->height -= view->height;
2182 /* Make room for the title bar. */
2186 /* Make room for the title bar. */
2191 foreach_displayed_view (view, i) {
2193 view->win = newwin(view->height, 0, offset, 0);
2195 die("Failed to create %s view", view->name);
2197 scrollok(view->win, FALSE);
2199 view->title = newwin(1, 0, offset + view->height, 0);
2201 die("Failed to create title window");
2204 wresize(view->win, view->height, view->width);
2205 mvwin(view->win, offset, 0);
2206 mvwin(view->title, offset + view->height, 0);
2209 offset += view->height + 1;
2214 redraw_display(bool clear)
2219 foreach_displayed_view (view, i) {
2223 update_view_title(view);
2226 if (display[current_view])
2227 update_display_cursor(display[current_view]);
2231 toggle_view_option(bool *option, const char *help)
2234 redraw_display(FALSE);
2235 report("%sabling %s", *option ? "En" : "Dis", help);
2242 /* Scrolling backend */
2244 do_scroll_view(struct view *view, int lines)
2246 bool redraw_current_line = FALSE;
2248 /* The rendering expects the new offset. */
2249 view->offset += lines;
2251 assert(0 <= view->offset && view->offset < view->lines);
2254 /* Move current line into the view. */
2255 if (view->lineno < view->offset) {
2256 view->lineno = view->offset;
2257 redraw_current_line = TRUE;
2258 } else if (view->lineno >= view->offset + view->height) {
2259 view->lineno = view->offset + view->height - 1;
2260 redraw_current_line = TRUE;
2263 assert(view->offset <= view->lineno && view->lineno < view->lines);
2265 /* Redraw the whole screen if scrolling is pointless. */
2266 if (view->height < ABS(lines)) {
2270 int line = lines > 0 ? view->height - lines : 0;
2271 int end = line + ABS(lines);
2273 scrollok(view->win, TRUE);
2274 wscrl(view->win, lines);
2275 scrollok(view->win, FALSE);
2277 while (line < end && draw_view_line(view, line))
2280 if (redraw_current_line)
2281 draw_view_line(view, view->lineno - view->offset);
2282 /* FIXME: Stupid hack to workaround bug where the message from
2283 * scrolling up one line when impossible followed by scrolling
2284 * down one line is not removed by the next action. */
2287 wrefresh(view->win);
2293 /* Scroll frontend */
2295 scroll_view(struct view *view, enum request request)
2299 assert(view_is_displayed(view));
2302 case REQ_SCROLL_PAGE_DOWN:
2303 lines = view->height;
2304 case REQ_SCROLL_LINE_DOWN:
2305 if (view->offset + lines > view->lines)
2306 lines = view->lines - view->offset;
2308 if (lines == 0 || view->offset + view->height >= view->lines) {
2309 report("Cannot scroll beyond the last line");
2314 case REQ_SCROLL_PAGE_UP:
2315 lines = view->height;
2316 case REQ_SCROLL_LINE_UP:
2317 if (lines > view->offset)
2318 lines = view->offset;
2321 report("Cannot scroll beyond the first line");
2329 die("request %d not handled in switch", request);
2332 do_scroll_view(view, lines);
2337 move_view(struct view *view, enum request request)
2339 int scroll_steps = 0;
2343 case REQ_MOVE_FIRST_LINE:
2344 steps = -view->lineno;
2347 case REQ_MOVE_LAST_LINE:
2348 steps = view->lines - view->lineno - 1;
2351 case REQ_MOVE_PAGE_UP:
2352 steps = view->height > view->lineno
2353 ? -view->lineno : -view->height;
2356 case REQ_MOVE_PAGE_DOWN:
2357 steps = view->lineno + view->height >= view->lines
2358 ? view->lines - view->lineno - 1 : view->height;
2370 die("request %d not handled in switch", request);
2373 if (steps <= 0 && view->lineno == 0) {
2374 report("Cannot move beyond the first line");
2377 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2378 report("Cannot move beyond the last line");
2382 /* Move the current line */
2383 view->lineno += steps;
2384 assert(0 <= view->lineno && view->lineno < view->lines);
2386 /* Check whether the view needs to be scrolled */
2387 if (view->lineno < view->offset ||
2388 view->lineno >= view->offset + view->height) {
2389 scroll_steps = steps;
2390 if (steps < 0 && -steps > view->offset) {
2391 scroll_steps = -view->offset;
2393 } else if (steps > 0) {
2394 if (view->lineno == view->lines - 1 &&
2395 view->lines > view->height) {
2396 scroll_steps = view->lines - view->offset - 1;
2397 if (scroll_steps >= view->height)
2398 scroll_steps -= view->height - 1;
2403 if (!view_is_displayed(view)) {
2404 view->offset += scroll_steps;
2405 assert(0 <= view->offset && view->offset < view->lines);
2406 view->ops->select(view, &view->line[view->lineno]);
2410 /* Repaint the old "current" line if we be scrolling */
2411 if (ABS(steps) < view->height)
2412 draw_view_line(view, view->lineno - steps - view->offset);
2415 do_scroll_view(view, scroll_steps);
2419 /* Draw the current line */
2420 draw_view_line(view, view->lineno - view->offset);
2422 wrefresh(view->win);
2431 static void search_view(struct view *view, enum request request);
2434 select_view_line(struct view *view, unsigned long lineno)
2436 if (lineno - view->offset >= view->height) {
2437 view->offset = lineno;
2438 view->lineno = lineno;
2439 if (view_is_displayed(view))
2443 unsigned long old_lineno = view->lineno - view->offset;
2445 view->lineno = lineno;
2446 if (view_is_displayed(view)) {
2447 draw_view_line(view, old_lineno);
2448 draw_view_line(view, view->lineno - view->offset);
2449 wrefresh(view->win);
2451 view->ops->select(view, &view->line[view->lineno]);
2457 find_next(struct view *view, enum request request)
2459 unsigned long lineno = view->lineno;
2464 report("No previous search");
2466 search_view(view, request);
2476 case REQ_SEARCH_BACK:
2485 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2486 lineno += direction;
2488 /* Note, lineno is unsigned long so will wrap around in which case it
2489 * will become bigger than view->lines. */
2490 for (; lineno < view->lines; lineno += direction) {
2491 if (view->ops->grep(view, &view->line[lineno])) {
2492 select_view_line(view, lineno);
2493 report("Line %ld matches '%s'", lineno + 1, view->grep);
2498 report("No match found for '%s'", view->grep);
2502 search_view(struct view *view, enum request request)
2507 regfree(view->regex);
2510 view->regex = calloc(1, sizeof(*view->regex));
2515 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2516 if (regex_err != 0) {
2517 char buf[SIZEOF_STR] = "unknown error";
2519 regerror(regex_err, view->regex, buf, sizeof(buf));
2520 report("Search failed: %s", buf);
2524 string_copy(view->grep, opt_search);
2526 find_next(view, request);
2530 * Incremental updating
2534 reset_view(struct view *view)
2538 for (i = 0; i < view->lines; i++)
2539 free(view->line[i].data);
2542 view->p_offset = view->offset;
2543 view->p_lineno = view->lineno;
2549 view->line_alloc = 0;
2551 view->update_secs = 0;
2555 free_argv(const char *argv[])
2559 for (argc = 0; argv[argc]; argc++)
2560 free((void *) argv[argc]);
2564 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2566 char buf[SIZEOF_STR];
2568 bool noreplace = flags == FORMAT_NONE;
2570 free_argv(dst_argv);
2572 for (argc = 0; src_argv[argc]; argc++) {
2573 const char *arg = src_argv[argc];
2577 char *next = strstr(arg, "%(");
2578 int len = next - arg;
2581 if (!next || noreplace) {
2582 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2587 } else if (!prefixcmp(next, "%(directory)")) {
2590 } else if (!prefixcmp(next, "%(file)")) {
2593 } else if (!prefixcmp(next, "%(ref)")) {
2594 value = *opt_ref ? opt_ref : "HEAD";
2596 } else if (!prefixcmp(next, "%(head)")) {
2599 } else if (!prefixcmp(next, "%(commit)")) {
2602 } else if (!prefixcmp(next, "%(blob)")) {
2606 report("Unknown replacement: `%s`", next);
2610 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2613 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2616 dst_argv[argc] = strdup(buf);
2617 if (!dst_argv[argc])
2621 dst_argv[argc] = NULL;
2623 return src_argv[argc] == NULL;
2627 restore_view_position(struct view *view)
2629 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2632 /* Changing the view position cancels the restoring. */
2633 /* FIXME: Changing back to the first line is not detected. */
2634 if (view->offset != 0 || view->lineno != 0) {
2635 view->p_restore = FALSE;
2639 if (view->p_lineno >= view->lines) {
2640 view->p_lineno = view->lines > 0 ? view->lines - 1 : 0;
2641 if (view->p_offset >= view->p_lineno) {
2642 unsigned long half = view->height / 2;
2644 if (view->p_lineno > half)
2645 view->p_offset = view->p_lineno - half;
2651 if (view_is_displayed(view) &&
2652 view->offset != view->p_offset &&
2653 view->lineno != view->p_lineno)
2656 view->offset = view->p_offset;
2657 view->lineno = view->p_lineno;
2658 view->p_restore = FALSE;
2664 end_update(struct view *view, bool force)
2668 while (!view->ops->read(view, NULL))
2671 set_nonblocking_input(FALSE);
2673 kill_io(view->pipe);
2674 done_io(view->pipe);
2679 setup_update(struct view *view, const char *vid)
2681 set_nonblocking_input(TRUE);
2683 string_copy_rev(view->vid, vid);
2684 view->pipe = &view->io;
2685 view->start_time = time(NULL);
2689 prepare_update(struct view *view, const char *argv[], const char *dir,
2690 enum format_flags flags)
2693 end_update(view, TRUE);
2694 return init_io_rd(&view->io, argv, dir, flags);
2698 prepare_update_file(struct view *view, const char *name)
2701 end_update(view, TRUE);
2702 return io_open(&view->io, name);
2706 begin_update(struct view *view, bool refresh)
2709 end_update(view, TRUE);
2712 if (!start_io(&view->io))
2716 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2719 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2722 /* Put the current ref_* value to the view title ref
2723 * member. This is needed by the blob view. Most other
2724 * views sets it automatically after loading because the
2725 * first line is a commit line. */
2726 string_copy_rev(view->ref, view->id);
2729 setup_update(view, view->id);
2734 #define ITEM_CHUNK_SIZE 256
2736 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2738 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2739 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2741 if (mem == NULL || num_chunks != num_chunks_new) {
2742 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2743 mem = realloc(mem, *size * item_size);
2749 static struct line *
2750 realloc_lines(struct view *view, size_t line_size)
2752 size_t alloc = view->line_alloc;
2753 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2754 sizeof(*view->line));
2760 view->line_alloc = alloc;
2765 update_view(struct view *view)
2767 char out_buffer[BUFSIZ * 2];
2769 /* Clear the view and redraw everything since the tree sorting
2770 * might have rearranged things. */
2771 bool redraw = view->lines == 0;
2772 bool can_read = TRUE;
2777 if (!io_can_read(view->pipe)) {
2778 if (view->lines == 0) {
2779 time_t secs = time(NULL) - view->start_time;
2781 if (secs > view->update_secs) {
2782 if (view->update_secs == 0)
2784 update_view_title(view);
2785 view->update_secs = secs;
2791 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2792 if (opt_iconv != ICONV_NONE) {
2793 ICONV_CONST char *inbuf = line;
2794 size_t inlen = strlen(line) + 1;
2796 char *outbuf = out_buffer;
2797 size_t outlen = sizeof(out_buffer);
2801 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2802 if (ret != (size_t) -1)
2806 if (!view->ops->read(view, line)) {
2807 report("Allocation failure");
2808 end_update(view, TRUE);
2814 unsigned long lines = view->lines;
2817 for (digits = 0; lines; digits++)
2820 /* Keep the displayed view in sync with line number scaling. */
2821 if (digits != view->digits) {
2822 view->digits = digits;
2823 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2828 if (io_error(view->pipe)) {
2829 report("Failed to read: %s", io_strerror(view->pipe));
2830 end_update(view, TRUE);
2832 } else if (io_eof(view->pipe)) {
2834 end_update(view, FALSE);
2837 if (restore_view_position(view))
2840 if (!view_is_displayed(view))
2844 redraw_view_from(view, 0);
2846 redraw_view_dirty(view);
2848 /* Update the title _after_ the redraw so that if the redraw picks up a
2849 * commit reference in view->ref it'll be available here. */
2850 update_view_title(view);
2851 update_display_cursor(view);
2855 static struct line *
2856 add_line_data(struct view *view, void *data, enum line_type type)
2860 if (!realloc_lines(view, view->lines + 1))
2863 line = &view->line[view->lines++];
2864 memset(line, 0, sizeof(*line));
2872 static struct line *
2873 add_line_text(struct view *view, const char *text, enum line_type type)
2875 char *data = text ? strdup(text) : NULL;
2877 return data ? add_line_data(view, data, type) : NULL;
2880 static struct line *
2881 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2883 char buf[SIZEOF_STR];
2886 va_start(args, fmt);
2887 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2891 return buf[0] ? add_line_text(view, buf, type) : NULL;
2899 OPEN_DEFAULT = 0, /* Use default view switching. */
2900 OPEN_SPLIT = 1, /* Split current view. */
2901 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2902 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2903 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2904 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2905 OPEN_PREPARED = 32, /* Open already prepared command. */
2909 open_view(struct view *prev, enum request request, enum open_flags flags)
2911 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2912 bool split = !!(flags & OPEN_SPLIT);
2913 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2914 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2915 struct view *view = VIEW(request);
2916 int nviews = displayed_views();
2917 struct view *base_view = display[0];
2919 if (view == prev && nviews == 1 && !reload) {
2920 report("Already in %s view", view->name);
2924 if (view->git_dir && !opt_git_dir[0]) {
2925 report("The %s view is disabled in pager view", view->name);
2933 } else if (!nomaximize) {
2934 /* Maximize the current view. */
2935 memset(display, 0, sizeof(display));
2937 display[current_view] = view;
2940 /* Resize the view when switching between split- and full-screen,
2941 * or when switching between two different full-screen views. */
2942 if (nviews != displayed_views() ||
2943 (nviews == 1 && base_view != display[0]))
2946 if (view->ops->open) {
2948 end_update(view, TRUE);
2949 if (!view->ops->open(view)) {
2950 report("Failed to load %s view", view->name);
2953 restore_view_position(view);
2955 } else if ((reload || strcmp(view->vid, view->id)) &&
2956 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2957 report("Failed to load %s view", view->name);
2961 if (split && prev->lineno - prev->offset >= prev->height) {
2962 /* Take the title line into account. */
2963 int lines = prev->lineno - prev->offset - prev->height + 1;
2965 /* Scroll the view that was split if the current line is
2966 * outside the new limited view. */
2967 do_scroll_view(prev, lines);
2970 if (prev && view != prev) {
2971 if (split && !backgrounded) {
2972 /* "Blur" the previous view. */
2973 update_view_title(prev);
2976 view->parent = prev;
2979 if (view->pipe && view->lines == 0) {
2980 /* Clear the old view and let the incremental updating refill
2983 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
2985 } else if (view_is_displayed(view)) {
2990 /* If the view is backgrounded the above calls to report()
2991 * won't redraw the view title. */
2993 update_view_title(view);
2997 open_external_viewer(const char *argv[], const char *dir)
2999 def_prog_mode(); /* save current tty modes */
3000 endwin(); /* restore original tty modes */
3001 run_io_fg(argv, dir);
3002 fprintf(stderr, "Press Enter to continue");
3005 redraw_display(TRUE);
3009 open_mergetool(const char *file)
3011 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
3013 open_external_viewer(mergetool_argv, opt_cdup);
3017 open_editor(bool from_root, const char *file)
3019 const char *editor_argv[] = { "vi", file, NULL };
3022 editor = getenv("GIT_EDITOR");
3023 if (!editor && *opt_editor)
3024 editor = opt_editor;
3026 editor = getenv("VISUAL");
3028 editor = getenv("EDITOR");
3032 editor_argv[0] = editor;
3033 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3037 open_run_request(enum request request)
3039 struct run_request *req = get_run_request(request);
3040 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3043 report("Unknown run request");
3047 if (format_argv(argv, req->argv, FORMAT_ALL))
3048 open_external_viewer(argv, NULL);
3053 * User request switch noodle
3057 view_driver(struct view *view, enum request request)
3061 if (request == REQ_NONE) {
3066 if (request > REQ_NONE) {
3067 open_run_request(request);
3068 /* FIXME: When all views can refresh always do this. */
3069 if (view == VIEW(REQ_VIEW_STATUS) ||
3070 view == VIEW(REQ_VIEW_MAIN) ||
3071 view == VIEW(REQ_VIEW_LOG) ||
3072 view == VIEW(REQ_VIEW_STAGE))
3073 request = REQ_REFRESH;
3078 if (view && view->lines) {
3079 request = view->ops->request(view, request, &view->line[view->lineno]);
3080 if (request == REQ_NONE)
3087 case REQ_MOVE_PAGE_UP:
3088 case REQ_MOVE_PAGE_DOWN:
3089 case REQ_MOVE_FIRST_LINE:
3090 case REQ_MOVE_LAST_LINE:
3091 move_view(view, request);
3094 case REQ_SCROLL_LINE_DOWN:
3095 case REQ_SCROLL_LINE_UP:
3096 case REQ_SCROLL_PAGE_DOWN:
3097 case REQ_SCROLL_PAGE_UP:
3098 scroll_view(view, request);
3101 case REQ_VIEW_BLAME:
3103 report("No file chosen, press %s to open tree view",
3104 get_key(REQ_VIEW_TREE));
3107 open_view(view, request, OPEN_DEFAULT);
3112 report("No file chosen, press %s to open tree view",
3113 get_key(REQ_VIEW_TREE));
3116 open_view(view, request, OPEN_DEFAULT);
3119 case REQ_VIEW_PAGER:
3120 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3121 report("No pager content, press %s to run command from prompt",
3122 get_key(REQ_PROMPT));
3125 open_view(view, request, OPEN_DEFAULT);
3128 case REQ_VIEW_STAGE:
3129 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3130 report("No stage content, press %s to open the status view and choose file",
3131 get_key(REQ_VIEW_STATUS));
3134 open_view(view, request, OPEN_DEFAULT);
3137 case REQ_VIEW_STATUS:
3138 if (opt_is_inside_work_tree == FALSE) {
3139 report("The status view requires a working tree");
3142 open_view(view, request, OPEN_DEFAULT);
3150 open_view(view, request, OPEN_DEFAULT);
3155 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3157 if ((view == VIEW(REQ_VIEW_DIFF) &&
3158 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3159 (view == VIEW(REQ_VIEW_DIFF) &&
3160 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3161 (view == VIEW(REQ_VIEW_STAGE) &&
3162 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3163 (view == VIEW(REQ_VIEW_BLOB) &&
3164 view->parent == VIEW(REQ_VIEW_TREE))) {
3167 view = view->parent;
3168 line = view->lineno;
3169 move_view(view, request);
3170 if (view_is_displayed(view))
3171 update_view_title(view);
3172 if (line != view->lineno)
3173 view->ops->request(view, REQ_ENTER,
3174 &view->line[view->lineno]);
3177 move_view(view, request);
3183 int nviews = displayed_views();
3184 int next_view = (current_view + 1) % nviews;
3186 if (next_view == current_view) {
3187 report("Only one view is displayed");
3191 current_view = next_view;
3192 /* Blur out the title of the previous view. */
3193 update_view_title(view);
3198 report("Refreshing is not yet supported for the %s view", view->name);
3202 if (displayed_views() == 2)
3203 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3206 case REQ_TOGGLE_LINENO:
3207 toggle_view_option(&opt_line_number, "line numbers");
3210 case REQ_TOGGLE_DATE:
3211 toggle_view_option(&opt_date, "date display");
3214 case REQ_TOGGLE_AUTHOR:
3215 toggle_view_option(&opt_author, "author display");
3218 case REQ_TOGGLE_REV_GRAPH:
3219 toggle_view_option(&opt_rev_graph, "revision graph display");
3222 case REQ_TOGGLE_REFS:
3223 toggle_view_option(&opt_show_refs, "reference display");
3227 case REQ_SEARCH_BACK:
3228 search_view(view, request);
3233 find_next(view, request);
3236 case REQ_STOP_LOADING:
3237 for (i = 0; i < ARRAY_SIZE(views); i++) {
3240 report("Stopped loading the %s view", view->name),
3241 end_update(view, TRUE);
3245 case REQ_SHOW_VERSION:
3246 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3249 case REQ_SCREEN_REDRAW:
3250 redraw_display(TRUE);
3254 report("Nothing to edit");
3258 report("Nothing to enter");
3261 case REQ_VIEW_CLOSE:
3262 /* XXX: Mark closed views by letting view->parent point to the
3263 * view itself. Parents to closed view should never be
3266 view->parent->parent != view->parent) {
3267 memset(display, 0, sizeof(display));
3269 display[current_view] = view->parent;
3270 view->parent = view;
3272 redraw_display(FALSE);
3281 report("Unknown key, press 'h' for help");
3290 * View backend utilities
3293 /* Parse author lines where the name may be empty:
3294 * author <email@address.tld> 1138474660 +0100
3297 parse_author_line(char *ident, char *author, size_t authorsize, struct tm *tm)
3299 char *nameend = strchr(ident, '<');
3300 char *emailend = strchr(ident, '>');
3302 if (nameend && emailend)
3303 *nameend = *emailend = 0;
3304 ident = chomp_string(ident);
3307 ident = chomp_string(nameend + 1);
3312 string_ncopy_do(author, authorsize, ident, strlen(ident));
3314 /* Parse epoch and timezone */
3315 if (emailend && emailend[1] == ' ') {
3316 char *secs = emailend + 2;
3317 char *zone = strchr(secs, ' ');
3318 time_t time = (time_t) atol(secs);
3320 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
3324 tz = ('0' - zone[1]) * 60 * 60 * 10;
3325 tz += ('0' - zone[2]) * 60 * 60;
3326 tz += ('0' - zone[3]) * 60;
3327 tz += ('0' - zone[4]) * 60;
3335 gmtime_r(&time, tm);
3339 static enum input_status
3340 select_commit_parent_handler(void *data, char *buf, int c)
3342 size_t parents = *(size_t *) data;
3349 parent = atoi(buf) * 10;
3352 if (parent > parents)
3358 select_commit_parent(const char *id, char rev[SIZEOF_REV])
3360 char buf[SIZEOF_STR * 4];
3361 const char *revlist_argv[] = {
3362 "git", "rev-list", "-1", "--parents", id, NULL
3366 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3367 !*chomp_string(buf) ||
3368 (parents = (strlen(buf) / 40) - 1) < 0) {
3369 report("Failed to get parent information");
3372 } else if (parents == 0) {
3373 report("The selected commit has no parents");
3378 char prompt[SIZEOF_STR];
3381 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3383 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3386 parents = atoi(result);
3389 string_copy_rev(rev, &buf[41 * parents]);
3398 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3400 char *text = line->data;
3402 if (opt_line_number && draw_lineno(view, lineno))
3405 draw_text(view, line->type, text, TRUE);
3410 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3412 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3413 char refbuf[SIZEOF_STR];
3416 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3417 ref = chomp_string(refbuf);
3422 /* This is the only fatal call, since it can "corrupt" the buffer. */
3423 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3430 add_pager_refs(struct view *view, struct line *line)
3432 char buf[SIZEOF_STR];
3433 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3435 size_t bufpos = 0, refpos = 0;
3436 const char *sep = "Refs: ";
3437 bool is_tag = FALSE;
3439 assert(line->type == LINE_COMMIT);
3441 refs = get_refs(commit_id);
3443 if (view == VIEW(REQ_VIEW_DIFF))
3444 goto try_add_describe_ref;
3449 struct ref *ref = refs[refpos];
3450 const char *fmt = ref->tag ? "%s[%s]" :
3451 ref->remote ? "%s<%s>" : "%s%s";
3453 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3458 } while (refs[refpos++]->next);
3460 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3461 try_add_describe_ref:
3462 /* Add <tag>-g<commit_id> "fake" reference. */
3463 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3470 add_line_text(view, buf, LINE_PP_REFS);
3474 pager_read(struct view *view, char *data)
3481 line = add_line_text(view, data, get_line_type(data));
3485 if (line->type == LINE_COMMIT &&
3486 (view == VIEW(REQ_VIEW_DIFF) ||
3487 view == VIEW(REQ_VIEW_LOG)))
3488 add_pager_refs(view, line);
3494 pager_request(struct view *view, enum request request, struct line *line)
3498 if (request != REQ_ENTER)
3501 if (line->type == LINE_COMMIT &&
3502 (view == VIEW(REQ_VIEW_LOG) ||
3503 view == VIEW(REQ_VIEW_PAGER))) {
3504 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3508 /* Always scroll the view even if it was split. That way
3509 * you can use Enter to scroll through the log view and
3510 * split open each commit diff. */
3511 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3513 /* FIXME: A minor workaround. Scrolling the view will call report("")
3514 * but if we are scrolling a non-current view this won't properly
3515 * update the view title. */
3517 update_view_title(view);
3523 pager_grep(struct view *view, struct line *line)
3526 char *text = line->data;
3531 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3538 pager_select(struct view *view, struct line *line)
3540 if (line->type == LINE_COMMIT) {
3541 char *text = (char *)line->data + STRING_SIZE("commit ");
3543 if (view != VIEW(REQ_VIEW_PAGER))
3544 string_copy_rev(view->ref, text);
3545 string_copy_rev(ref_commit, text);
3549 static struct view_ops pager_ops = {
3560 static const char *log_argv[SIZEOF_ARG] = {
3561 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3565 log_request(struct view *view, enum request request, struct line *line)
3570 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3573 return pager_request(view, request, line);
3577 static struct view_ops log_ops = {
3588 static const char *diff_argv[SIZEOF_ARG] = {
3589 "git", "show", "--pretty=fuller", "--no-color", "--root",
3590 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3593 static struct view_ops diff_ops = {
3609 help_open(struct view *view)
3611 char buf[SIZEOF_STR];
3615 if (view->lines > 0)
3618 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3620 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3623 if (req_info[i].request == REQ_NONE)
3626 if (!req_info[i].request) {
3627 add_line_text(view, "", LINE_DEFAULT);
3628 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3632 key = get_key(req_info[i].request);
3634 key = "(no key defined)";
3636 for (bufpos = 0; bufpos <= req_info[i].namelen; bufpos++) {
3637 buf[bufpos] = tolower(req_info[i].name[bufpos]);
3638 if (buf[bufpos] == '_')
3642 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s",
3643 key, buf, req_info[i].help);
3647 add_line_text(view, "", LINE_DEFAULT);
3648 add_line_text(view, "External commands:", LINE_DEFAULT);
3651 for (i = 0; i < run_requests; i++) {
3652 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3659 key = get_key_name(req->key);
3661 key = "(no key defined)";
3663 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3664 if (!string_format_from(buf, &bufpos, "%s%s",
3665 argc ? " " : "", req->argv[argc]))
3668 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3669 keymap_table[req->keymap].name, key, buf);
3675 static struct view_ops help_ops = {
3691 struct tree_stack_entry {
3692 struct tree_stack_entry *prev; /* Entry below this in the stack */
3693 unsigned long lineno; /* Line number to restore */
3694 char *name; /* Position of name in opt_path */
3697 /* The top of the path stack. */
3698 static struct tree_stack_entry *tree_stack = NULL;
3699 unsigned long tree_lineno = 0;
3702 pop_tree_stack_entry(void)
3704 struct tree_stack_entry *entry = tree_stack;
3706 tree_lineno = entry->lineno;
3708 tree_stack = entry->prev;
3713 push_tree_stack_entry(const char *name, unsigned long lineno)
3715 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3716 size_t pathlen = strlen(opt_path);
3721 entry->prev = tree_stack;
3722 entry->name = opt_path + pathlen;
3725 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3726 pop_tree_stack_entry();
3730 /* Move the current line to the first tree entry. */
3732 entry->lineno = lineno;
3735 /* Parse output from git-ls-tree(1):
3737 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3738 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3739 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3740 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3743 #define SIZEOF_TREE_ATTR \
3744 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3746 #define SIZEOF_TREE_MODE \
3747 STRING_SIZE("100644 ")
3749 #define TREE_ID_OFFSET \
3750 STRING_SIZE("100644 blob ")
3753 char id[SIZEOF_REV];
3755 struct tm time; /* Date from the author ident. */
3756 char author[75]; /* Author of the commit. */
3761 tree_path(struct line *line)
3763 return ((struct tree_entry *) line->data)->name;
3768 tree_compare_entry(struct line *line1, struct line *line2)
3770 if (line1->type != line2->type)
3771 return line1->type == LINE_TREE_DIR ? -1 : 1;
3772 return strcmp(tree_path(line1), tree_path(line2));
3775 static struct line *
3776 tree_entry(struct view *view, enum line_type type, const char *path,
3777 const char *mode, const char *id)
3779 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3780 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3782 if (!entry || !line) {
3787 strncpy(entry->name, path, strlen(path));
3789 entry->mode = strtoul(mode, NULL, 8);
3791 string_copy_rev(entry->id, id);
3797 tree_read_date(struct view *view, char *text, bool *read_date)
3799 static char author_name[SIZEOF_STR];
3800 static struct tm author_time;
3802 if (!text && *read_date) {
3807 char *path = *opt_path ? opt_path : ".";
3808 /* Find next entry to process */
3809 const char *log_file[] = {
3810 "git", "log", "--no-color", "--pretty=raw",
3811 "--cc", "--raw", view->id, "--", path, NULL
3815 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3816 report("Failed to load tree data");
3820 done_io(view->pipe);
3825 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3826 parse_author_line(text + STRING_SIZE("author "),
3827 author_name, sizeof(author_name), &author_time);
3829 } else if (*text == ':') {
3831 size_t annotated = 1;
3834 pos = strchr(text, '\t');
3838 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3839 text += strlen(opt_prefix);
3840 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3841 text += strlen(opt_path);
3842 pos = strchr(text, '/');
3846 for (i = 1; i < view->lines; i++) {
3847 struct line *line = &view->line[i];
3848 struct tree_entry *entry = line->data;
3850 annotated += !!*entry->author;
3851 if (*entry->author || strcmp(entry->name, text))
3854 string_copy(entry->author, author_name);
3855 memcpy(&entry->time, &author_time, sizeof(entry->time));
3860 if (annotated == view->lines)
3861 kill_io(view->pipe);
3867 tree_read(struct view *view, char *text)
3869 static bool read_date = FALSE;
3870 struct tree_entry *data;
3871 struct line *entry, *line;
3872 enum line_type type;
3873 size_t textlen = text ? strlen(text) : 0;
3874 char *path = text + SIZEOF_TREE_ATTR;
3876 if (read_date || !text)
3877 return tree_read_date(view, text, &read_date);
3879 if (textlen <= SIZEOF_TREE_ATTR)
3881 if (view->lines == 0 &&
3882 !tree_entry(view, LINE_TREE_PARENT, opt_path, NULL, NULL))
3885 /* Strip the path part ... */
3887 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3888 size_t striplen = strlen(opt_path);
3890 if (pathlen > striplen)
3891 memmove(path, path + striplen,
3892 pathlen - striplen + 1);
3894 /* Insert "link" to parent directory. */
3895 if (view->lines == 1 &&
3896 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3900 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3901 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3906 /* Skip "Directory ..." and ".." line. */
3907 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3908 if (tree_compare_entry(line, entry) <= 0)
3911 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3915 for (; line <= entry; line++)
3916 line->dirty = line->cleareol = 1;
3920 if (tree_lineno > view->lineno) {
3921 view->lineno = tree_lineno;
3929 tree_draw(struct view *view, struct line *line, unsigned int lineno)
3931 struct tree_entry *entry = line->data;
3933 if (line->type == LINE_TREE_PARENT) {
3934 if (draw_text(view, line->type, "Directory path /", TRUE))
3937 char mode[11] = "-r--r--r--";
3939 if (S_ISDIR(entry->mode)) {
3940 mode[3] = mode[6] = mode[9] = 'x';
3943 if (S_ISLNK(entry->mode))
3945 if (entry->mode & S_IWUSR)
3947 if (entry->mode & S_IXUSR)
3949 if (entry->mode & S_IXGRP)
3951 if (entry->mode & S_IXOTH)
3953 if (draw_field(view, LINE_TREE_MODE, mode, 11, TRUE))
3957 draw_field(view, LINE_MAIN_AUTHOR, entry->author, opt_author_cols, TRUE))
3960 if (opt_date && draw_date(view, *entry->author ? &entry->time : NULL))
3963 if (draw_text(view, line->type, entry->name, TRUE))
3971 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
3972 int fd = mkstemp(file);
3975 report("Failed to create temporary file");
3976 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
3977 report("Failed to save blob data to file");
3979 open_editor(FALSE, file);
3985 tree_request(struct view *view, enum request request, struct line *line)
3987 enum open_flags flags;
3990 case REQ_VIEW_BLAME:
3991 if (line->type != LINE_TREE_FILE) {
3992 report("Blame only supported for files");
3996 string_copy(opt_ref, view->vid);
4000 if (line->type != LINE_TREE_FILE) {
4001 report("Edit only supported for files");
4002 } else if (!is_head_commit(view->vid)) {
4005 open_editor(TRUE, opt_file);
4011 /* quit view if at top of tree */
4012 return REQ_VIEW_CLOSE;
4015 line = &view->line[1];
4025 /* Cleanup the stack if the tree view is at a different tree. */
4026 while (!*opt_path && tree_stack)
4027 pop_tree_stack_entry();
4029 switch (line->type) {
4031 /* Depending on whether it is a subdir or parent (updir?) link
4032 * mangle the path buffer. */
4033 if (line == &view->line[1] && *opt_path) {
4034 pop_tree_stack_entry();
4037 const char *basename = tree_path(line);
4039 push_tree_stack_entry(basename, view->lineno);
4042 /* Trees and subtrees share the same ID, so they are not not
4043 * unique like blobs. */
4044 flags = OPEN_RELOAD;
4045 request = REQ_VIEW_TREE;
4048 case LINE_TREE_FILE:
4049 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4050 request = REQ_VIEW_BLOB;
4057 open_view(view, request, flags);
4058 if (request == REQ_VIEW_TREE)
4059 view->lineno = tree_lineno;
4065 tree_select(struct view *view, struct line *line)
4067 struct tree_entry *entry = line->data;
4069 if (line->type == LINE_TREE_FILE) {
4070 string_copy_rev(ref_blob, entry->id);
4071 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4073 } else if (line->type != LINE_TREE_DIR) {
4077 string_copy_rev(view->ref, entry->id);
4080 static const char *tree_argv[SIZEOF_ARG] = {
4081 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4084 static struct view_ops tree_ops = {
4096 blob_read(struct view *view, char *line)
4100 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4104 blob_request(struct view *view, enum request request, struct line *line)
4111 return pager_request(view, request, line);
4115 static const char *blob_argv[SIZEOF_ARG] = {
4116 "git", "cat-file", "blob", "%(blob)", NULL
4119 static struct view_ops blob_ops = {
4133 * Loading the blame view is a two phase job:
4135 * 1. File content is read either using opt_file from the
4136 * filesystem or using git-cat-file.
4137 * 2. Then blame information is incrementally added by
4138 * reading output from git-blame.
4141 static const char *blame_head_argv[] = {
4142 "git", "blame", "--incremental", "--", "%(file)", NULL
4145 static const char *blame_ref_argv[] = {
4146 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4149 static const char *blame_cat_file_argv[] = {
4150 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4153 struct blame_commit {
4154 char id[SIZEOF_REV]; /* SHA1 ID. */
4155 char title[128]; /* First line of the commit message. */
4156 char author[75]; /* Author of the commit. */
4157 struct tm time; /* Date from the author ident. */
4158 char filename[128]; /* Name of file. */
4159 bool has_previous; /* Was a "previous" line detected. */
4163 struct blame_commit *commit;
4168 blame_open(struct view *view)
4170 if (*opt_ref || !io_open(&view->io, opt_file)) {
4171 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4175 setup_update(view, opt_file);
4176 string_format(view->ref, "%s ...", opt_file);
4181 static struct blame_commit *
4182 get_blame_commit(struct view *view, const char *id)
4186 for (i = 0; i < view->lines; i++) {
4187 struct blame *blame = view->line[i].data;
4192 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4193 return blame->commit;
4197 struct blame_commit *commit = calloc(1, sizeof(*commit));
4200 string_ncopy(commit->id, id, SIZEOF_REV);
4206 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4208 const char *pos = *posref;
4211 pos = strchr(pos + 1, ' ');
4212 if (!pos || !isdigit(pos[1]))
4214 *number = atoi(pos + 1);
4215 if (*number < min || *number > max)
4222 static struct blame_commit *
4223 parse_blame_commit(struct view *view, const char *text, int *blamed)
4225 struct blame_commit *commit;
4226 struct blame *blame;
4227 const char *pos = text + SIZEOF_REV - 1;
4231 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
4234 if (!parse_number(&pos, &lineno, 1, view->lines) ||
4235 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4238 commit = get_blame_commit(view, text);
4244 struct line *line = &view->line[lineno + group - 1];
4247 blame->commit = commit;
4255 blame_read_file(struct view *view, const char *line, bool *read_file)
4258 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4261 if (view->lines == 0 && !view->parent)
4262 die("No blame exist for %s", view->vid);
4264 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4265 report("Failed to load blame data");
4269 done_io(view->pipe);
4275 size_t linelen = strlen(line);
4276 struct blame *blame = malloc(sizeof(*blame) + linelen);
4278 blame->commit = NULL;
4279 strncpy(blame->text, line, linelen);
4280 blame->text[linelen] = 0;
4281 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4286 match_blame_header(const char *name, char **line)
4288 size_t namelen = strlen(name);
4289 bool matched = !strncmp(name, *line, namelen);
4298 blame_read(struct view *view, char *line)
4300 static struct blame_commit *commit = NULL;
4301 static int blamed = 0;
4302 static time_t author_time;
4303 static bool read_file = TRUE;
4306 return blame_read_file(view, line, &read_file);
4313 string_format(view->ref, "%s", view->vid);
4314 if (view_is_displayed(view)) {
4315 update_view_title(view);
4316 redraw_view_from(view, 0);
4322 commit = parse_blame_commit(view, line, &blamed);
4323 string_format(view->ref, "%s %2d%%", view->vid,
4324 view->lines ? blamed * 100 / view->lines : 0);
4326 } else if (match_blame_header("author ", &line)) {
4327 string_ncopy(commit->author, line, strlen(line));
4329 } else if (match_blame_header("author-time ", &line)) {
4330 author_time = (time_t) atol(line);
4332 } else if (match_blame_header("author-tz ", &line)) {
4335 tz = ('0' - line[1]) * 60 * 60 * 10;
4336 tz += ('0' - line[2]) * 60 * 60;
4337 tz += ('0' - line[3]) * 60;
4338 tz += ('0' - line[4]) * 60;
4344 gmtime_r(&author_time, &commit->time);
4346 } else if (match_blame_header("summary ", &line)) {
4347 string_ncopy(commit->title, line, strlen(line));
4349 } else if (match_blame_header("previous ", &line)) {
4350 commit->has_previous = TRUE;
4352 } else if (match_blame_header("filename ", &line)) {
4353 string_ncopy(commit->filename, line, strlen(line));
4361 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4363 struct blame *blame = line->data;
4364 struct tm *time = NULL;
4365 const char *id = NULL, *author = NULL;
4367 if (blame->commit && *blame->commit->filename) {
4368 id = blame->commit->id;
4369 author = blame->commit->author;
4370 time = &blame->commit->time;
4373 if (opt_date && draw_date(view, time))
4377 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
4380 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4383 if (draw_lineno(view, lineno))
4386 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4391 check_blame_commit(struct blame *blame)
4394 report("Commit data not loaded yet");
4395 else if (!strcmp(blame->commit->id, NULL_ID))
4396 report("No commit exist for the selected line");
4403 blame_request(struct view *view, enum request request, struct line *line)
4405 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4406 struct blame *blame = line->data;
4409 case REQ_VIEW_BLAME:
4410 if (check_blame_commit(blame)) {
4411 string_copy(opt_ref, blame->commit->id);
4412 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4417 if (check_blame_commit(blame) &&
4418 select_commit_parent(blame->commit->id, opt_ref))
4419 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4423 if (!blame->commit) {
4424 report("No commit loaded yet");
4428 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4429 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4432 if (!strcmp(blame->commit->id, NULL_ID)) {
4433 struct view *diff = VIEW(REQ_VIEW_DIFF);
4434 const char *diff_index_argv[] = {
4435 "git", "diff-index", "--root", "--patch-with-stat",
4436 "-C", "-M", "HEAD", "--", view->vid, NULL
4439 if (!blame->commit->has_previous) {
4440 diff_index_argv[1] = "diff";
4441 diff_index_argv[2] = "--no-color";
4442 diff_index_argv[6] = "--";
4443 diff_index_argv[7] = "/dev/null";
4446 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4447 report("Failed to allocate diff command");
4450 flags |= OPEN_PREPARED;
4453 open_view(view, REQ_VIEW_DIFF, flags);
4454 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4455 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4466 blame_grep(struct view *view, struct line *line)
4468 struct blame *blame = line->data;
4469 struct blame_commit *commit = blame->commit;
4472 #define MATCH(text, on) \
4473 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4476 char buf[DATE_COLS + 1];
4478 if (MATCH(commit->title, 1) ||
4479 MATCH(commit->author, opt_author) ||
4480 MATCH(commit->id, opt_date))
4483 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4488 return MATCH(blame->text, 1);
4494 blame_select(struct view *view, struct line *line)
4496 struct blame *blame = line->data;
4497 struct blame_commit *commit = blame->commit;
4502 if (!strcmp(commit->id, NULL_ID))
4503 string_ncopy(ref_commit, "HEAD", 4);
4505 string_copy_rev(ref_commit, commit->id);
4508 static struct view_ops blame_ops = {
4527 char rev[SIZEOF_REV];
4528 char name[SIZEOF_STR];
4532 char rev[SIZEOF_REV];
4533 char name[SIZEOF_STR];
4537 static char status_onbranch[SIZEOF_STR];
4538 static struct status stage_status;
4539 static enum line_type stage_line_type;
4540 static size_t stage_chunks;
4541 static int *stage_chunk;
4543 /* This should work even for the "On branch" line. */
4545 status_has_none(struct view *view, struct line *line)
4547 return line < view->line + view->lines && !line[1].data;
4550 /* Get fields from the diff line:
4551 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4554 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4556 const char *old_mode = buf + 1;
4557 const char *new_mode = buf + 8;
4558 const char *old_rev = buf + 15;
4559 const char *new_rev = buf + 56;
4560 const char *status = buf + 97;
4563 old_mode[-1] != ':' ||
4564 new_mode[-1] != ' ' ||
4565 old_rev[-1] != ' ' ||
4566 new_rev[-1] != ' ' ||
4570 file->status = *status;
4572 string_copy_rev(file->old.rev, old_rev);
4573 string_copy_rev(file->new.rev, new_rev);
4575 file->old.mode = strtoul(old_mode, NULL, 8);
4576 file->new.mode = strtoul(new_mode, NULL, 8);
4578 file->old.name[0] = file->new.name[0] = 0;
4584 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4586 struct status *file = NULL;
4587 struct status *unmerged = NULL;
4591 if (!run_io(&io, argv, NULL, IO_RD))
4594 add_line_data(view, NULL, type);
4596 while ((buf = io_get(&io, 0, TRUE))) {
4598 file = calloc(1, sizeof(*file));
4599 if (!file || !add_line_data(view, file, type))
4603 /* Parse diff info part. */
4605 file->status = status;
4607 string_copy(file->old.rev, NULL_ID);
4609 } else if (!file->status) {
4610 if (!status_get_diff(file, buf, strlen(buf)))
4613 buf = io_get(&io, 0, TRUE);
4617 /* Collapse all 'M'odified entries that follow a
4618 * associated 'U'nmerged entry. */
4619 if (file->status == 'U') {
4622 } else if (unmerged) {
4623 int collapse = !strcmp(buf, unmerged->new.name);
4635 /* Grab the old name for rename/copy. */
4636 if (!*file->old.name &&
4637 (file->status == 'R' || file->status == 'C')) {
4638 string_ncopy(file->old.name, buf, strlen(buf));
4640 buf = io_get(&io, 0, TRUE);
4645 /* git-ls-files just delivers a NUL separated list of
4646 * file names similar to the second half of the
4647 * git-diff-* output. */
4648 string_ncopy(file->new.name, buf, strlen(buf));
4649 if (!*file->old.name)
4650 string_copy(file->old.name, file->new.name);
4654 if (io_error(&io)) {
4660 if (!view->line[view->lines - 1].data)
4661 add_line_data(view, NULL, LINE_STAT_NONE);
4667 /* Don't show unmerged entries in the staged section. */
4668 static const char *status_diff_index_argv[] = {
4669 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4670 "--cached", "-M", "HEAD", NULL
4673 static const char *status_diff_files_argv[] = {
4674 "git", "diff-files", "-z", NULL
4677 static const char *status_list_other_argv[] = {
4678 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4681 static const char *status_list_no_head_argv[] = {
4682 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4685 static const char *update_index_argv[] = {
4686 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4689 /* Restore the previous line number to stay in the context or select a
4690 * line with something that can be updated. */
4692 status_restore(struct view *view)
4694 if (view->p_lineno >= view->lines)
4695 view->p_lineno = view->lines - 1;
4696 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4698 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4701 /* If the above fails, always skip the "On branch" line. */
4702 if (view->p_lineno < view->lines)
4703 view->lineno = view->p_lineno;
4707 if (view->lineno < view->offset)
4708 view->offset = view->lineno;
4709 else if (view->offset + view->height <= view->lineno)
4710 view->offset = view->lineno - view->height + 1;
4712 view->p_restore = FALSE;
4715 /* First parse staged info using git-diff-index(1), then parse unstaged
4716 * info using git-diff-files(1), and finally untracked files using
4717 * git-ls-files(1). */
4719 status_open(struct view *view)
4723 add_line_data(view, NULL, LINE_STAT_HEAD);
4724 if (is_initial_commit())
4725 string_copy(status_onbranch, "Initial commit");
4726 else if (!*opt_head)
4727 string_copy(status_onbranch, "Not currently on any branch");
4728 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4731 run_io_bg(update_index_argv);
4733 if (is_initial_commit()) {
4734 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4736 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4740 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4741 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4744 /* Restore the exact position or use the specialized restore
4746 if (!view->p_restore)
4747 status_restore(view);
4752 status_draw(struct view *view, struct line *line, unsigned int lineno)
4754 struct status *status = line->data;
4755 enum line_type type;
4759 switch (line->type) {
4760 case LINE_STAT_STAGED:
4761 type = LINE_STAT_SECTION;
4762 text = "Changes to be committed:";
4765 case LINE_STAT_UNSTAGED:
4766 type = LINE_STAT_SECTION;
4767 text = "Changed but not updated:";
4770 case LINE_STAT_UNTRACKED:
4771 type = LINE_STAT_SECTION;
4772 text = "Untracked files:";
4775 case LINE_STAT_NONE:
4776 type = LINE_DEFAULT;
4777 text = " (no files)";
4780 case LINE_STAT_HEAD:
4781 type = LINE_STAT_HEAD;
4782 text = status_onbranch;
4789 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4791 buf[0] = status->status;
4792 if (draw_text(view, line->type, buf, TRUE))
4794 type = LINE_DEFAULT;
4795 text = status->new.name;
4798 draw_text(view, type, text, TRUE);
4803 status_enter(struct view *view, struct line *line)
4805 struct status *status = line->data;
4806 const char *oldpath = status ? status->old.name : NULL;
4807 /* Diffs for unmerged entries are empty when passing the new
4808 * path, so leave it empty. */
4809 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4811 enum open_flags split;
4812 struct view *stage = VIEW(REQ_VIEW_STAGE);
4814 if (line->type == LINE_STAT_NONE ||
4815 (!status && line[1].type == LINE_STAT_NONE)) {
4816 report("No file to diff");
4820 switch (line->type) {
4821 case LINE_STAT_STAGED:
4822 if (is_initial_commit()) {
4823 const char *no_head_diff_argv[] = {
4824 "git", "diff", "--no-color", "--patch-with-stat",
4825 "--", "/dev/null", newpath, NULL
4828 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4831 const char *index_show_argv[] = {
4832 "git", "diff-index", "--root", "--patch-with-stat",
4833 "-C", "-M", "--cached", "HEAD", "--",
4834 oldpath, newpath, NULL
4837 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4842 info = "Staged changes to %s";
4844 info = "Staged changes";
4847 case LINE_STAT_UNSTAGED:
4849 const char *files_show_argv[] = {
4850 "git", "diff-files", "--root", "--patch-with-stat",
4851 "-C", "-M", "--", oldpath, newpath, NULL
4854 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4857 info = "Unstaged changes to %s";
4859 info = "Unstaged changes";
4862 case LINE_STAT_UNTRACKED:
4864 report("No file to show");
4868 if (!suffixcmp(status->new.name, -1, "/")) {
4869 report("Cannot display a directory");
4873 if (!prepare_update_file(stage, newpath))
4875 info = "Untracked file %s";
4878 case LINE_STAT_HEAD:
4882 die("line type %d not handled in switch", line->type);
4885 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4886 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
4887 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4889 stage_status = *status;
4891 memset(&stage_status, 0, sizeof(stage_status));
4894 stage_line_type = line->type;
4896 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4903 status_exists(struct status *status, enum line_type type)
4905 struct view *view = VIEW(REQ_VIEW_STATUS);
4906 unsigned long lineno;
4908 for (lineno = 0; lineno < view->lines; lineno++) {
4909 struct line *line = &view->line[lineno];
4910 struct status *pos = line->data;
4912 if (line->type != type)
4914 if (!pos && (!status || !status->status) && line[1].data) {
4915 select_view_line(view, lineno);
4918 if (pos && !strcmp(status->new.name, pos->new.name)) {
4919 select_view_line(view, lineno);
4929 status_update_prepare(struct io *io, enum line_type type)
4931 const char *staged_argv[] = {
4932 "git", "update-index", "-z", "--index-info", NULL
4934 const char *others_argv[] = {
4935 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4939 case LINE_STAT_STAGED:
4940 return run_io(io, staged_argv, opt_cdup, IO_WR);
4942 case LINE_STAT_UNSTAGED:
4943 return run_io(io, others_argv, opt_cdup, IO_WR);
4945 case LINE_STAT_UNTRACKED:
4946 return run_io(io, others_argv, NULL, IO_WR);
4949 die("line type %d not handled in switch", type);
4955 status_update_write(struct io *io, struct status *status, enum line_type type)
4957 char buf[SIZEOF_STR];
4961 case LINE_STAT_STAGED:
4962 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4965 status->old.name, 0))
4969 case LINE_STAT_UNSTAGED:
4970 case LINE_STAT_UNTRACKED:
4971 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4976 die("line type %d not handled in switch", type);
4979 return io_write(io, buf, bufsize);
4983 status_update_file(struct status *status, enum line_type type)
4988 if (!status_update_prepare(&io, type))
4991 result = status_update_write(&io, status, type);
4997 status_update_files(struct view *view, struct line *line)
5001 struct line *pos = view->line + view->lines;
5005 if (!status_update_prepare(&io, line->type))
5008 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5011 for (file = 0, done = 0; result && file < files; line++, file++) {
5012 int almost_done = file * 100 / files;
5014 if (almost_done > done) {
5016 string_format(view->ref, "updating file %u of %u (%d%% done)",
5018 update_view_title(view);
5020 result = status_update_write(&io, line->data, line->type);
5028 status_update(struct view *view)
5030 struct line *line = &view->line[view->lineno];
5032 assert(view->lines);
5035 /* This should work even for the "On branch" line. */
5036 if (line < view->line + view->lines && !line[1].data) {
5037 report("Nothing to update");
5041 if (!status_update_files(view, line + 1)) {
5042 report("Failed to update file status");
5046 } else if (!status_update_file(line->data, line->type)) {
5047 report("Failed to update file status");
5055 status_revert(struct status *status, enum line_type type, bool has_none)
5057 if (!status || type != LINE_STAT_UNSTAGED) {
5058 if (type == LINE_STAT_STAGED) {
5059 report("Cannot revert changes to staged files");
5060 } else if (type == LINE_STAT_UNTRACKED) {
5061 report("Cannot revert changes to untracked files");
5062 } else if (has_none) {
5063 report("Nothing to revert");
5065 report("Cannot revert changes to multiple files");
5070 const char *checkout_argv[] = {
5071 "git", "checkout", "--", status->old.name, NULL
5074 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5076 return run_io_fg(checkout_argv, opt_cdup);
5081 status_request(struct view *view, enum request request, struct line *line)
5083 struct status *status = line->data;
5086 case REQ_STATUS_UPDATE:
5087 if (!status_update(view))
5091 case REQ_STATUS_REVERT:
5092 if (!status_revert(status, line->type, status_has_none(view, line)))
5096 case REQ_STATUS_MERGE:
5097 if (!status || status->status != 'U') {
5098 report("Merging only possible for files with unmerged status ('U').");
5101 open_mergetool(status->new.name);
5107 if (status->status == 'D') {
5108 report("File has been deleted.");
5112 open_editor(status->status != '?', status->new.name);
5115 case REQ_VIEW_BLAME:
5117 string_copy(opt_file, status->new.name);
5123 /* After returning the status view has been split to
5124 * show the stage view. No further reloading is
5126 status_enter(view, line);
5130 /* Simply reload the view. */
5137 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5143 status_select(struct view *view, struct line *line)
5145 struct status *status = line->data;
5146 char file[SIZEOF_STR] = "all files";
5150 if (status && !string_format(file, "'%s'", status->new.name))
5153 if (!status && line[1].type == LINE_STAT_NONE)
5156 switch (line->type) {
5157 case LINE_STAT_STAGED:
5158 text = "Press %s to unstage %s for commit";
5161 case LINE_STAT_UNSTAGED:
5162 text = "Press %s to stage %s for commit";
5165 case LINE_STAT_UNTRACKED:
5166 text = "Press %s to stage %s for addition";
5169 case LINE_STAT_HEAD:
5170 case LINE_STAT_NONE:
5171 text = "Nothing to update";
5175 die("line type %d not handled in switch", line->type);
5178 if (status && status->status == 'U') {
5179 text = "Press %s to resolve conflict in %s";
5180 key = get_key(REQ_STATUS_MERGE);
5183 key = get_key(REQ_STATUS_UPDATE);
5186 string_format(view->ref, text, key, file);
5190 status_grep(struct view *view, struct line *line)
5192 struct status *status = line->data;
5193 enum { S_STATUS, S_NAME, S_END } state;
5200 for (state = S_STATUS; state < S_END; state++) {
5204 case S_NAME: text = status->new.name; break;
5206 buf[0] = status->status;
5214 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5221 static struct view_ops status_ops = {
5234 stage_diff_write(struct io *io, struct line *line, struct line *end)
5236 while (line < end) {
5237 if (!io_write(io, line->data, strlen(line->data)) ||
5238 !io_write(io, "\n", 1))
5241 if (line->type == LINE_DIFF_CHUNK ||
5242 line->type == LINE_DIFF_HEADER)
5249 static struct line *
5250 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5252 for (; view->line < line; line--)
5253 if (line->type == type)
5260 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5262 const char *apply_argv[SIZEOF_ARG] = {
5263 "git", "apply", "--whitespace=nowarn", NULL
5265 struct line *diff_hdr;
5269 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5274 apply_argv[argc++] = "--cached";
5275 if (revert || stage_line_type == LINE_STAT_STAGED)
5276 apply_argv[argc++] = "-R";
5277 apply_argv[argc++] = "-";
5278 apply_argv[argc++] = NULL;
5279 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5282 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5283 !stage_diff_write(&io, chunk, view->line + view->lines))
5287 run_io_bg(update_index_argv);
5289 return chunk ? TRUE : FALSE;
5293 stage_update(struct view *view, struct line *line)
5295 struct line *chunk = NULL;
5297 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5298 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5301 if (!stage_apply_chunk(view, chunk, FALSE)) {
5302 report("Failed to apply chunk");
5306 } else if (!stage_status.status) {
5307 view = VIEW(REQ_VIEW_STATUS);
5309 for (line = view->line; line < view->line + view->lines; line++)
5310 if (line->type == stage_line_type)
5313 if (!status_update_files(view, line + 1)) {
5314 report("Failed to update files");
5318 } else if (!status_update_file(&stage_status, stage_line_type)) {
5319 report("Failed to update file");
5327 stage_revert(struct view *view, struct line *line)
5329 struct line *chunk = NULL;
5331 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5332 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5335 if (!prompt_yesno("Are you sure you want to revert changes?"))
5338 if (!stage_apply_chunk(view, chunk, TRUE)) {
5339 report("Failed to revert chunk");
5345 return status_revert(stage_status.status ? &stage_status : NULL,
5346 stage_line_type, FALSE);
5352 stage_next(struct view *view, struct line *line)
5356 if (!stage_chunks) {
5357 static size_t alloc = 0;
5360 for (line = view->line; line < view->line + view->lines; line++) {
5361 if (line->type != LINE_DIFF_CHUNK)
5364 tmp = realloc_items(stage_chunk, &alloc,
5365 stage_chunks, sizeof(*tmp));
5367 report("Allocation failure");
5372 stage_chunk[stage_chunks++] = line - view->line;
5376 for (i = 0; i < stage_chunks; i++) {
5377 if (stage_chunk[i] > view->lineno) {
5378 do_scroll_view(view, stage_chunk[i] - view->lineno);
5379 report("Chunk %d of %d", i + 1, stage_chunks);
5384 report("No next chunk found");
5388 stage_request(struct view *view, enum request request, struct line *line)
5391 case REQ_STATUS_UPDATE:
5392 if (!stage_update(view, line))
5396 case REQ_STATUS_REVERT:
5397 if (!stage_revert(view, line))
5401 case REQ_STAGE_NEXT:
5402 if (stage_line_type == LINE_STAT_UNTRACKED) {
5403 report("File is untracked; press %s to add",
5404 get_key(REQ_STATUS_UPDATE));
5407 stage_next(view, line);
5411 if (!stage_status.new.name[0])
5413 if (stage_status.status == 'D') {
5414 report("File has been deleted.");
5418 open_editor(stage_status.status != '?', stage_status.new.name);
5422 /* Reload everything ... */
5425 case REQ_VIEW_BLAME:
5426 if (stage_status.new.name[0]) {
5427 string_copy(opt_file, stage_status.new.name);
5433 return pager_request(view, request, line);
5439 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5440 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5442 /* Check whether the staged entry still exists, and close the
5443 * stage view if it doesn't. */
5444 if (!status_exists(&stage_status, stage_line_type)) {
5445 status_restore(VIEW(REQ_VIEW_STATUS));
5446 return REQ_VIEW_CLOSE;
5449 if (stage_line_type == LINE_STAT_UNTRACKED) {
5450 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5451 report("Cannot display a directory");
5455 if (!prepare_update_file(view, stage_status.new.name)) {
5456 report("Failed to open file: %s", strerror(errno));
5460 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5465 static struct view_ops stage_ops = {
5482 char id[SIZEOF_REV]; /* SHA1 ID. */
5483 char title[128]; /* First line of the commit message. */
5484 char author[75]; /* Author of the commit. */
5485 struct tm time; /* Date from the author ident. */
5486 struct ref **refs; /* Repository references. */
5487 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5488 size_t graph_size; /* The width of the graph array. */
5489 bool has_parents; /* Rewritten --parents seen. */
5492 /* Size of rev graph with no "padding" columns */
5493 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5496 struct rev_graph *prev, *next, *parents;
5497 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5499 struct commit *commit;
5501 unsigned int boundary:1;
5504 /* Parents of the commit being visualized. */
5505 static struct rev_graph graph_parents[4];
5507 /* The current stack of revisions on the graph. */
5508 static struct rev_graph graph_stacks[4] = {
5509 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5510 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5511 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5512 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5516 graph_parent_is_merge(struct rev_graph *graph)
5518 return graph->parents->size > 1;
5522 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5524 struct commit *commit = graph->commit;
5526 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5527 commit->graph[commit->graph_size++] = symbol;
5531 clear_rev_graph(struct rev_graph *graph)
5533 graph->boundary = 0;
5534 graph->size = graph->pos = 0;
5535 graph->commit = NULL;
5536 memset(graph->parents, 0, sizeof(*graph->parents));
5540 done_rev_graph(struct rev_graph *graph)
5542 if (graph_parent_is_merge(graph) &&
5543 graph->pos < graph->size - 1 &&
5544 graph->next->size == graph->size + graph->parents->size - 1) {
5545 size_t i = graph->pos + graph->parents->size - 1;
5547 graph->commit->graph_size = i * 2;
5548 while (i < graph->next->size - 1) {
5549 append_to_rev_graph(graph, ' ');
5550 append_to_rev_graph(graph, '\\');
5555 clear_rev_graph(graph);
5559 push_rev_graph(struct rev_graph *graph, const char *parent)
5563 /* "Collapse" duplicate parents lines.
5565 * FIXME: This needs to also update update the drawn graph but
5566 * for now it just serves as a method for pruning graph lines. */
5567 for (i = 0; i < graph->size; i++)
5568 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5571 if (graph->size < SIZEOF_REVITEMS) {
5572 string_copy_rev(graph->rev[graph->size++], parent);
5577 get_rev_graph_symbol(struct rev_graph *graph)
5581 if (graph->boundary)
5582 symbol = REVGRAPH_BOUND;
5583 else if (graph->parents->size == 0)
5584 symbol = REVGRAPH_INIT;
5585 else if (graph_parent_is_merge(graph))
5586 symbol = REVGRAPH_MERGE;
5587 else if (graph->pos >= graph->size)
5588 symbol = REVGRAPH_BRANCH;
5590 symbol = REVGRAPH_COMMIT;
5596 draw_rev_graph(struct rev_graph *graph)
5599 chtype separator, line;
5601 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5602 static struct rev_filler fillers[] = {
5608 chtype symbol = get_rev_graph_symbol(graph);
5609 struct rev_filler *filler;
5612 if (opt_line_graphics)
5613 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5615 filler = &fillers[DEFAULT];
5617 for (i = 0; i < graph->pos; i++) {
5618 append_to_rev_graph(graph, filler->line);
5619 if (graph_parent_is_merge(graph->prev) &&
5620 graph->prev->pos == i)
5621 filler = &fillers[RSHARP];
5623 append_to_rev_graph(graph, filler->separator);
5626 /* Place the symbol for this revision. */
5627 append_to_rev_graph(graph, symbol);
5629 if (graph->prev->size > graph->size)
5630 filler = &fillers[RDIAG];
5632 filler = &fillers[DEFAULT];
5636 for (; i < graph->size; i++) {
5637 append_to_rev_graph(graph, filler->separator);
5638 append_to_rev_graph(graph, filler->line);
5639 if (graph_parent_is_merge(graph->prev) &&
5640 i < graph->prev->pos + graph->parents->size)
5641 filler = &fillers[RSHARP];
5642 if (graph->prev->size > graph->size)
5643 filler = &fillers[LDIAG];
5646 if (graph->prev->size > graph->size) {
5647 append_to_rev_graph(graph, filler->separator);
5648 if (filler->line != ' ')
5649 append_to_rev_graph(graph, filler->line);
5653 /* Prepare the next rev graph */
5655 prepare_rev_graph(struct rev_graph *graph)
5659 /* First, traverse all lines of revisions up to the active one. */
5660 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5661 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5664 push_rev_graph(graph->next, graph->rev[graph->pos]);
5667 /* Interleave the new revision parent(s). */
5668 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5669 push_rev_graph(graph->next, graph->parents->rev[i]);
5671 /* Lastly, put any remaining revisions. */
5672 for (i = graph->pos + 1; i < graph->size; i++)
5673 push_rev_graph(graph->next, graph->rev[i]);
5677 update_rev_graph(struct view *view, struct rev_graph *graph)
5679 /* If this is the finalizing update ... */
5681 prepare_rev_graph(graph);
5683 /* Graph visualization needs a one rev look-ahead,
5684 * so the first update doesn't visualize anything. */
5685 if (!graph->prev->commit)
5688 if (view->lines > 2)
5689 view->line[view->lines - 3].dirty = 1;
5690 if (view->lines > 1)
5691 view->line[view->lines - 2].dirty = 1;
5692 draw_rev_graph(graph->prev);
5693 done_rev_graph(graph->prev->prev);
5701 static const char *main_argv[SIZEOF_ARG] = {
5702 "git", "log", "--no-color", "--pretty=raw", "--parents",
5703 "--topo-order", "%(head)", NULL
5707 main_draw(struct view *view, struct line *line, unsigned int lineno)
5709 struct commit *commit = line->data;
5711 if (!*commit->author)
5714 if (opt_date && draw_date(view, &commit->time))
5718 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5721 if (opt_rev_graph && commit->graph_size &&
5722 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5725 if (opt_show_refs && commit->refs) {
5729 enum line_type type;
5731 if (commit->refs[i]->head)
5732 type = LINE_MAIN_HEAD;
5733 else if (commit->refs[i]->ltag)
5734 type = LINE_MAIN_LOCAL_TAG;
5735 else if (commit->refs[i]->tag)
5736 type = LINE_MAIN_TAG;
5737 else if (commit->refs[i]->tracked)
5738 type = LINE_MAIN_TRACKED;
5739 else if (commit->refs[i]->remote)
5740 type = LINE_MAIN_REMOTE;
5742 type = LINE_MAIN_REF;
5744 if (draw_text(view, type, "[", TRUE) ||
5745 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5746 draw_text(view, type, "]", TRUE))
5749 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5751 } while (commit->refs[i++]->next);
5754 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5758 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5760 main_read(struct view *view, char *line)
5762 static struct rev_graph *graph = graph_stacks;
5763 enum line_type type;
5764 struct commit *commit;
5769 if (!view->lines && !view->parent)
5770 die("No revisions match the given arguments.");
5771 if (view->lines > 0) {
5772 commit = view->line[view->lines - 1].data;
5773 view->line[view->lines - 1].dirty = 1;
5774 if (!*commit->author) {
5777 graph->commit = NULL;
5780 update_rev_graph(view, graph);
5782 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5783 clear_rev_graph(&graph_stacks[i]);
5787 type = get_line_type(line);
5788 if (type == LINE_COMMIT) {
5789 commit = calloc(1, sizeof(struct commit));
5793 line += STRING_SIZE("commit ");
5795 graph->boundary = 1;
5799 string_copy_rev(commit->id, line);
5800 commit->refs = get_refs(commit->id);
5801 graph->commit = commit;
5802 add_line_data(view, commit, LINE_MAIN_COMMIT);
5804 while ((line = strchr(line, ' '))) {
5806 push_rev_graph(graph->parents, line);
5807 commit->has_parents = TRUE;
5814 commit = view->line[view->lines - 1].data;
5818 if (commit->has_parents)
5820 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5824 parse_author_line(line + STRING_SIZE("author "),
5825 commit->author, sizeof(commit->author),
5827 update_rev_graph(view, graph);
5828 graph = graph->next;
5832 /* Fill in the commit title if it has not already been set. */
5833 if (commit->title[0])
5836 /* Require titles to start with a non-space character at the
5837 * offset used by git log. */
5838 if (strncmp(line, " ", 4))
5841 /* Well, if the title starts with a whitespace character,
5842 * try to be forgiving. Otherwise we end up with no title. */
5843 while (isspace(*line))
5847 /* FIXME: More graceful handling of titles; append "..." to
5848 * shortened titles, etc. */
5850 string_ncopy(commit->title, line, strlen(line));
5851 view->line[view->lines - 1].dirty = 1;
5858 main_request(struct view *view, enum request request, struct line *line)
5860 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5864 open_view(view, REQ_VIEW_DIFF, flags);
5868 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5878 grep_refs(struct ref **refs, regex_t *regex)
5886 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5888 } while (refs[i++]->next);
5894 main_grep(struct view *view, struct line *line)
5896 struct commit *commit = line->data;
5897 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5898 char buf[DATE_COLS + 1];
5901 for (state = S_TITLE; state < S_END; state++) {
5905 case S_TITLE: text = commit->title; break;
5909 text = commit->author;
5914 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5921 if (grep_refs(commit->refs, view->regex) == TRUE)
5928 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5936 main_select(struct view *view, struct line *line)
5938 struct commit *commit = line->data;
5940 string_copy_rev(view->ref, commit->id);
5941 string_copy_rev(ref_commit, view->ref);
5944 static struct view_ops main_ops = {
5957 * Unicode / UTF-8 handling
5959 * NOTE: Much of the following code for dealing with unicode is derived from
5960 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5961 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5964 /* I've (over)annotated a lot of code snippets because I am not entirely
5965 * confident that the approach taken by this small UTF-8 interface is correct.
5969 unicode_width(unsigned long c)
5972 (c <= 0x115f /* Hangul Jamo */
5975 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5977 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5978 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5979 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5980 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5981 || (c >= 0xffe0 && c <= 0xffe6)
5982 || (c >= 0x20000 && c <= 0x2fffd)
5983 || (c >= 0x30000 && c <= 0x3fffd)))
5987 return opt_tab_size;
5992 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5993 * Illegal bytes are set one. */
5994 static const unsigned char utf8_bytes[256] = {
5995 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,
5996 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,
5997 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,
5998 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,
5999 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,
6000 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,
6001 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,
6002 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,
6005 /* Decode UTF-8 multi-byte representation into a unicode character. */
6006 static inline unsigned long
6007 utf8_to_unicode(const char *string, size_t length)
6009 unsigned long unicode;
6013 unicode = string[0];
6016 unicode = (string[0] & 0x1f) << 6;
6017 unicode += (string[1] & 0x3f);
6020 unicode = (string[0] & 0x0f) << 12;
6021 unicode += ((string[1] & 0x3f) << 6);
6022 unicode += (string[2] & 0x3f);
6025 unicode = (string[0] & 0x0f) << 18;
6026 unicode += ((string[1] & 0x3f) << 12);
6027 unicode += ((string[2] & 0x3f) << 6);
6028 unicode += (string[3] & 0x3f);
6031 unicode = (string[0] & 0x0f) << 24;
6032 unicode += ((string[1] & 0x3f) << 18);
6033 unicode += ((string[2] & 0x3f) << 12);
6034 unicode += ((string[3] & 0x3f) << 6);
6035 unicode += (string[4] & 0x3f);
6038 unicode = (string[0] & 0x01) << 30;
6039 unicode += ((string[1] & 0x3f) << 24);
6040 unicode += ((string[2] & 0x3f) << 18);
6041 unicode += ((string[3] & 0x3f) << 12);
6042 unicode += ((string[4] & 0x3f) << 6);
6043 unicode += (string[5] & 0x3f);
6046 die("Invalid unicode length");
6049 /* Invalid characters could return the special 0xfffd value but NUL
6050 * should be just as good. */
6051 return unicode > 0xffff ? 0 : unicode;
6054 /* Calculates how much of string can be shown within the given maximum width
6055 * and sets trimmed parameter to non-zero value if all of string could not be
6056 * shown. If the reserve flag is TRUE, it will reserve at least one
6057 * trailing character, which can be useful when drawing a delimiter.
6059 * Returns the number of bytes to output from string to satisfy max_width. */
6061 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
6063 const char *start = string;
6064 const char *end = strchr(string, '\0');
6065 unsigned char last_bytes = 0;
6066 size_t last_ucwidth = 0;
6071 while (string < end) {
6072 int c = *(unsigned char *) string;
6073 unsigned char bytes = utf8_bytes[c];
6075 unsigned long unicode;
6077 if (string + bytes > end)
6080 /* Change representation to figure out whether
6081 * it is a single- or double-width character. */
6083 unicode = utf8_to_unicode(string, bytes);
6084 /* FIXME: Graceful handling of invalid unicode character. */
6088 ucwidth = unicode_width(unicode);
6090 if (*width > max_width) {
6093 if (reserve && *width == max_width) {
6094 string -= last_bytes;
6095 *width -= last_ucwidth;
6102 last_ucwidth = ucwidth;
6105 return string - start;
6113 /* Whether or not the curses interface has been initialized. */
6114 static bool cursed = FALSE;
6116 /* The status window is used for polling keystrokes. */
6117 static WINDOW *status_win;
6119 static bool status_empty = FALSE;
6121 /* Update status and title window. */
6123 report(const char *msg, ...)
6125 struct view *view = display[current_view];
6131 char buf[SIZEOF_STR];
6134 va_start(args, msg);
6135 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6136 buf[sizeof(buf) - 1] = 0;
6137 buf[sizeof(buf) - 2] = '.';
6138 buf[sizeof(buf) - 3] = '.';
6139 buf[sizeof(buf) - 4] = '.';
6145 if (!status_empty || *msg) {
6148 va_start(args, msg);
6150 wmove(status_win, 0, 0);
6152 vwprintw(status_win, msg, args);
6153 status_empty = FALSE;
6155 status_empty = TRUE;
6157 wclrtoeol(status_win);
6158 wrefresh(status_win);
6163 update_view_title(view);
6164 update_display_cursor(view);
6167 /* Controls when nodelay should be in effect when polling user input. */
6169 set_nonblocking_input(bool loading)
6171 static unsigned int loading_views;
6173 if ((loading == FALSE && loading_views-- == 1) ||
6174 (loading == TRUE && loading_views++ == 0))
6175 nodelay(status_win, loading);
6183 /* Initialize the curses library */
6184 if (isatty(STDIN_FILENO)) {
6185 cursed = !!initscr();
6188 /* Leave stdin and stdout alone when acting as a pager. */
6189 opt_tty = fopen("/dev/tty", "r+");
6191 die("Failed to open /dev/tty");
6192 cursed = !!newterm(NULL, opt_tty, opt_tty);
6196 die("Failed to initialize curses");
6198 nonl(); /* Tell curses not to do NL->CR/NL on output */
6199 cbreak(); /* Take input chars one at a time, no wait for \n */
6200 noecho(); /* Don't echo input */
6201 leaveok(stdscr, TRUE);
6206 getmaxyx(stdscr, y, x);
6207 status_win = newwin(1, 0, y - 1, 0);
6209 die("Failed to create status window");
6211 /* Enable keyboard mapping */
6212 keypad(status_win, TRUE);
6213 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6215 TABSIZE = opt_tab_size;
6216 if (opt_line_graphics) {
6217 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6222 get_input(bool prompting)
6231 foreach_view (view, i)
6234 /* Refresh, accept single keystroke of input */
6235 key = wgetch(status_win);
6237 /* wgetch() with nodelay() enabled returns ERR when
6238 * there's no input. */
6242 } else if (key == KEY_RESIZE) {
6245 getmaxyx(stdscr, height, width);
6247 /* Resize the status view first so the cursor is
6248 * placed properly. */
6249 wresize(status_win, 1, width);
6250 mvwin(status_win, height - 1, 0);
6251 wrefresh(status_win);
6253 redraw_display(TRUE);
6263 prompt_input(const char *prompt, input_handler handler, void *data)
6265 enum input_status status = INPUT_OK;
6266 static char buf[SIZEOF_STR];
6271 while (status == INPUT_OK || status == INPUT_SKIP) {
6274 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6275 wclrtoeol(status_win);
6277 key = get_input(TRUE);
6282 status = pos ? INPUT_STOP : INPUT_CANCEL;
6289 status = INPUT_CANCEL;
6293 status = INPUT_CANCEL;
6297 if (pos >= sizeof(buf)) {
6298 report("Input string too long");
6302 status = handler(data, buf, key);
6303 if (status == INPUT_OK)
6304 buf[pos++] = (char) key;
6308 /* Clear the status window */
6309 status_empty = FALSE;
6312 if (status == INPUT_CANCEL)
6320 static enum input_status
6321 prompt_yesno_handler(void *data, char *buf, int c)
6323 if (c == 'y' || c == 'Y')
6325 if (c == 'n' || c == 'N')
6326 return INPUT_CANCEL;
6331 prompt_yesno(const char *prompt)
6333 char prompt2[SIZEOF_STR];
6335 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6338 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6341 static enum input_status
6342 read_prompt_handler(void *data, char *buf, int c)
6344 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6348 read_prompt(const char *prompt)
6350 return prompt_input(prompt, read_prompt_handler, NULL);
6354 * Repository properties
6358 git_properties(const char **argv, const char *separators,
6359 int (*read_property)(char *, size_t, char *, size_t))
6363 if (init_io_rd(&io, argv, NULL, FORMAT_NONE))
6364 return read_properties(&io, separators, read_property);
6368 static struct ref *refs = NULL;
6369 static size_t refs_alloc = 0;
6370 static size_t refs_size = 0;
6372 /* Id <-> ref store */
6373 static struct ref ***id_refs = NULL;
6374 static size_t id_refs_alloc = 0;
6375 static size_t id_refs_size = 0;
6378 compare_refs(const void *ref1_, const void *ref2_)
6380 const struct ref *ref1 = *(const struct ref **)ref1_;
6381 const struct ref *ref2 = *(const struct ref **)ref2_;
6383 if (ref1->tag != ref2->tag)
6384 return ref2->tag - ref1->tag;
6385 if (ref1->ltag != ref2->ltag)
6386 return ref2->ltag - ref2->ltag;
6387 if (ref1->head != ref2->head)
6388 return ref2->head - ref1->head;
6389 if (ref1->tracked != ref2->tracked)
6390 return ref2->tracked - ref1->tracked;
6391 if (ref1->remote != ref2->remote)
6392 return ref2->remote - ref1->remote;
6393 return strcmp(ref1->name, ref2->name);
6396 static struct ref **
6397 get_refs(const char *id)
6399 struct ref ***tmp_id_refs;
6400 struct ref **ref_list = NULL;
6401 size_t ref_list_alloc = 0;
6402 size_t ref_list_size = 0;
6405 for (i = 0; i < id_refs_size; i++)
6406 if (!strcmp(id, id_refs[i][0]->id))
6409 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6414 id_refs = tmp_id_refs;
6416 for (i = 0; i < refs_size; i++) {
6419 if (strcmp(id, refs[i].id))
6422 tmp = realloc_items(ref_list, &ref_list_alloc,
6423 ref_list_size + 1, sizeof(*ref_list));
6431 ref_list[ref_list_size] = &refs[i];
6432 /* XXX: The properties of the commit chains ensures that we can
6433 * safely modify the shared ref. The repo references will
6434 * always be similar for the same id. */
6435 ref_list[ref_list_size]->next = 1;
6441 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6442 ref_list[ref_list_size - 1]->next = 0;
6443 id_refs[id_refs_size++] = ref_list;
6450 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6455 bool remote = FALSE;
6456 bool tracked = FALSE;
6457 bool check_replace = FALSE;
6460 if (!prefixcmp(name, "refs/tags/")) {
6461 if (!suffixcmp(name, namelen, "^{}")) {
6464 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6465 check_replace = TRUE;
6471 namelen -= STRING_SIZE("refs/tags/");
6472 name += STRING_SIZE("refs/tags/");
6474 } else if (!prefixcmp(name, "refs/remotes/")) {
6476 namelen -= STRING_SIZE("refs/remotes/");
6477 name += STRING_SIZE("refs/remotes/");
6478 tracked = !strcmp(opt_remote, name);
6480 } else if (!prefixcmp(name, "refs/heads/")) {
6481 namelen -= STRING_SIZE("refs/heads/");
6482 name += STRING_SIZE("refs/heads/");
6483 head = !strncmp(opt_head, name, namelen);
6485 } else if (!strcmp(name, "HEAD")) {
6486 string_ncopy(opt_head_rev, id, idlen);
6490 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6491 /* it's an annotated tag, replace the previous sha1 with the
6492 * resolved commit id; relies on the fact git-ls-remote lists
6493 * the commit id of an annotated tag right before the commit id
6495 refs[refs_size - 1].ltag = ltag;
6496 string_copy_rev(refs[refs_size - 1].id, id);
6500 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6504 ref = &refs[refs_size++];
6505 ref->name = malloc(namelen + 1);
6509 strncpy(ref->name, name, namelen);
6510 ref->name[namelen] = 0;
6514 ref->remote = remote;
6515 ref->tracked = tracked;
6516 string_copy_rev(ref->id, id);
6524 static const char *ls_remote_argv[SIZEOF_ARG] = {
6525 "git", "ls-remote", ".", NULL
6527 static bool init = FALSE;
6530 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6537 while (refs_size > 0)
6538 free(refs[--refs_size].name);
6539 while (id_refs_size > 0)
6540 free(id_refs[--id_refs_size]);
6542 return git_properties(ls_remote_argv, "\t", read_ref);
6546 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6548 if (!strcmp(name, "i18n.commitencoding"))
6549 string_ncopy(opt_encoding, value, valuelen);
6551 if (!strcmp(name, "core.editor"))
6552 string_ncopy(opt_editor, value, valuelen);
6554 /* branch.<head>.remote */
6556 !strncmp(name, "branch.", 7) &&
6557 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6558 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6559 string_ncopy(opt_remote, value, valuelen);
6561 if (*opt_head && *opt_remote &&
6562 !strncmp(name, "branch.", 7) &&
6563 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6564 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6565 size_t from = strlen(opt_remote);
6567 if (!prefixcmp(value, "refs/heads/")) {
6568 value += STRING_SIZE("refs/heads/");
6569 valuelen -= STRING_SIZE("refs/heads/");
6572 if (!string_format_from(opt_remote, &from, "/%s", value))
6580 load_git_config(void)
6582 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6584 return git_properties(config_list_argv, "=", read_repo_config_option);
6588 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6590 if (!opt_git_dir[0]) {
6591 string_ncopy(opt_git_dir, name, namelen);
6593 } else if (opt_is_inside_work_tree == -1) {
6594 /* This can be 3 different values depending on the
6595 * version of git being used. If git-rev-parse does not
6596 * understand --is-inside-work-tree it will simply echo
6597 * the option else either "true" or "false" is printed.
6598 * Default to true for the unknown case. */
6599 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6601 } else if (*name == '.') {
6602 string_ncopy(opt_cdup, name, namelen);
6605 string_ncopy(opt_prefix, name, namelen);
6612 load_repo_info(void)
6614 const char *head_argv[] = {
6615 "git", "symbolic-ref", "HEAD", NULL
6617 const char *rev_parse_argv[] = {
6618 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6619 "--show-cdup", "--show-prefix", NULL
6622 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6623 chomp_string(opt_head);
6624 if (!prefixcmp(opt_head, "refs/heads/")) {
6625 char *offset = opt_head + STRING_SIZE("refs/heads/");
6627 memmove(opt_head, offset, strlen(offset) + 1);
6631 return git_properties(rev_parse_argv, "=", read_repo_info);
6635 read_properties(struct io *io, const char *separators,
6636 int (*read_property)(char *, size_t, char *, size_t))
6644 while (state == OK && (name = io_get(io, '\n', TRUE))) {
6649 name = chomp_string(name);
6650 namelen = strcspn(name, separators);
6652 if (name[namelen]) {
6654 value = chomp_string(name + namelen + 1);
6655 valuelen = strlen(value);
6662 state = read_property(name, namelen, value, valuelen);
6665 if (state != ERR && io_error(io))
6677 static void __NORETURN
6680 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6686 static void __NORETURN
6687 die(const char *err, ...)
6693 va_start(args, err);
6694 fputs("tig: ", stderr);
6695 vfprintf(stderr, err, args);
6696 fputs("\n", stderr);
6703 warn(const char *msg, ...)
6707 va_start(args, msg);
6708 fputs("tig warning: ", stderr);
6709 vfprintf(stderr, msg, args);
6710 fputs("\n", stderr);
6715 main(int argc, const char *argv[])
6717 const char **run_argv = NULL;
6719 enum request request;
6722 signal(SIGINT, quit);
6724 if (setlocale(LC_ALL, "")) {
6725 char *codeset = nl_langinfo(CODESET);
6727 string_ncopy(opt_codeset, codeset, strlen(codeset));
6730 if (load_repo_info() == ERR)
6731 die("Failed to load repo info.");
6733 if (load_options() == ERR)
6734 die("Failed to load user config.");
6736 if (load_git_config() == ERR)
6737 die("Failed to load repo config.");
6739 request = parse_options(argc, argv, &run_argv);
6740 if (request == REQ_NONE)
6743 /* Require a git repository unless when running in pager mode. */
6744 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6745 die("Not a git repository");
6747 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6750 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6751 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6752 if (opt_iconv == ICONV_NONE)
6753 die("Failed to initialize character set conversion");
6756 if (load_refs() == ERR)
6757 die("Failed to load refs.");
6759 foreach_view (view, i)
6760 argv_from_env(view->ops->argv, view->cmd_env);
6764 if (request == REQ_VIEW_PAGER || run_argv) {
6765 if (request == REQ_VIEW_PAGER)
6766 io_open(&VIEW(request)->io, "");
6767 else if (!prepare_update(VIEW(request), run_argv, NULL, FORMAT_NONE))
6768 die("Failed to format arguments");
6769 open_view(NULL, request, OPEN_PREPARED);
6773 while (view_driver(display[current_view], request)) {
6774 int key = get_input(FALSE);
6776 view = display[current_view];
6777 request = get_keybinding(view->keymap, key);
6779 /* Some low-level request handling. This keeps access to
6780 * status_win restricted. */
6784 char *cmd = read_prompt(":");
6787 struct view *next = VIEW(REQ_VIEW_PAGER);
6788 const char *argv[SIZEOF_ARG] = { "git" };
6791 /* When running random commands, initially show the
6792 * command in the title. However, it maybe later be
6793 * overwritten if a commit line is selected. */
6794 string_ncopy(next->ref, cmd, strlen(cmd));
6796 if (!argv_from_string(argv, &argc, cmd)) {
6797 report("Too many arguments");
6798 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6799 report("Failed to format command");
6801 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6809 case REQ_SEARCH_BACK:
6811 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6812 char *search = read_prompt(prompt);
6815 string_ncopy(opt_search, search, strlen(search));