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 = chomp_string(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_author(struct view *view, const char *author)
2013 bool trim = opt_author_cols == 0 || opt_author_cols > 5 || !author;
2016 static char initials[10];
2019 #define is_initial_sep(c) (isspace(c) || ispunct(c) || (c) == '@')
2021 memset(initials, 0, sizeof(initials));
2022 for (pos = 0; *author && pos < opt_author_cols - 1; author++, pos++) {
2023 while (is_initial_sep(*author))
2025 strncpy(&initials[pos], author, sizeof(initials) - 1 - pos);
2026 while (*author && !is_initial_sep(author[1]))
2033 return draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, trim);
2037 draw_view_line(struct view *view, unsigned int lineno)
2040 bool selected = (view->offset + lineno == view->lineno);
2042 assert(view_is_displayed(view));
2044 if (view->offset + lineno >= view->lines)
2047 line = &view->line[view->offset + lineno];
2049 wmove(view->win, lineno, 0);
2051 wclrtoeol(view->win);
2053 view->curline = line;
2054 view->curtype = LINE_NONE;
2055 line->selected = FALSE;
2056 line->dirty = line->cleareol = 0;
2059 set_view_attr(view, LINE_CURSOR);
2060 line->selected = TRUE;
2061 view->ops->select(view, line);
2064 return view->ops->draw(view, line, lineno);
2068 redraw_view_dirty(struct view *view)
2073 for (lineno = 0; lineno < view->height; lineno++) {
2074 if (view->offset + lineno >= view->lines)
2076 if (!view->line[view->offset + lineno].dirty)
2079 if (!draw_view_line(view, lineno))
2086 wnoutrefresh(view->win);
2088 wrefresh(view->win);
2092 redraw_view_from(struct view *view, int lineno)
2094 assert(0 <= lineno && lineno < view->height);
2096 for (; lineno < view->height; lineno++) {
2097 if (!draw_view_line(view, lineno))
2102 wnoutrefresh(view->win);
2104 wrefresh(view->win);
2108 redraw_view(struct view *view)
2111 redraw_view_from(view, 0);
2116 update_display_cursor(struct view *view)
2118 /* Move the cursor to the right-most column of the cursor line.
2120 * XXX: This could turn out to be a bit expensive, but it ensures that
2121 * the cursor does not jump around. */
2123 wmove(view->win, view->lineno - view->offset, view->width - 1);
2124 wrefresh(view->win);
2129 update_view_title(struct view *view)
2131 char buf[SIZEOF_STR];
2132 char state[SIZEOF_STR];
2133 size_t bufpos = 0, statelen = 0;
2135 assert(view_is_displayed(view));
2137 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2138 unsigned int view_lines = view->offset + view->height;
2139 unsigned int lines = view->lines
2140 ? MIN(view_lines, view->lines) * 100 / view->lines
2143 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2152 time_t secs = time(NULL) - view->start_time;
2154 /* Three git seconds are a long time ... */
2156 string_format_from(state, &statelen, " loading %lds", secs);
2159 string_format_from(buf, &bufpos, "[%s]", view->name);
2160 if (*view->ref && bufpos < view->width) {
2161 size_t refsize = strlen(view->ref);
2162 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2164 if (minsize < view->width)
2165 refsize = view->width - minsize + 7;
2166 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2169 if (statelen && bufpos < view->width) {
2170 string_format_from(buf, &bufpos, "%s", state);
2173 if (view == display[current_view])
2174 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2176 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2178 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2179 wclrtoeol(view->title);
2180 wmove(view->title, 0, view->width - 1);
2183 wnoutrefresh(view->title);
2185 wrefresh(view->title);
2189 resize_display(void)
2192 struct view *base = display[0];
2193 struct view *view = display[1] ? display[1] : display[0];
2195 /* Setup window dimensions */
2197 getmaxyx(stdscr, base->height, base->width);
2199 /* Make room for the status window. */
2203 /* Horizontal split. */
2204 view->width = base->width;
2205 view->height = SCALE_SPLIT_VIEW(base->height);
2206 base->height -= view->height;
2208 /* Make room for the title bar. */
2212 /* Make room for the title bar. */
2217 foreach_displayed_view (view, i) {
2219 view->win = newwin(view->height, 0, offset, 0);
2221 die("Failed to create %s view", view->name);
2223 scrollok(view->win, FALSE);
2225 view->title = newwin(1, 0, offset + view->height, 0);
2227 die("Failed to create title window");
2230 wresize(view->win, view->height, view->width);
2231 mvwin(view->win, offset, 0);
2232 mvwin(view->title, offset + view->height, 0);
2235 offset += view->height + 1;
2240 redraw_display(bool clear)
2245 foreach_displayed_view (view, i) {
2249 update_view_title(view);
2252 if (display[current_view])
2253 update_display_cursor(display[current_view]);
2257 toggle_view_option(bool *option, const char *help)
2260 redraw_display(FALSE);
2261 report("%sabling %s", *option ? "En" : "Dis", help);
2268 /* Scrolling backend */
2270 do_scroll_view(struct view *view, int lines)
2272 bool redraw_current_line = FALSE;
2274 /* The rendering expects the new offset. */
2275 view->offset += lines;
2277 assert(0 <= view->offset && view->offset < view->lines);
2280 /* Move current line into the view. */
2281 if (view->lineno < view->offset) {
2282 view->lineno = view->offset;
2283 redraw_current_line = TRUE;
2284 } else if (view->lineno >= view->offset + view->height) {
2285 view->lineno = view->offset + view->height - 1;
2286 redraw_current_line = TRUE;
2289 assert(view->offset <= view->lineno && view->lineno < view->lines);
2291 /* Redraw the whole screen if scrolling is pointless. */
2292 if (view->height < ABS(lines)) {
2296 int line = lines > 0 ? view->height - lines : 0;
2297 int end = line + ABS(lines);
2299 scrollok(view->win, TRUE);
2300 wscrl(view->win, lines);
2301 scrollok(view->win, FALSE);
2303 while (line < end && draw_view_line(view, line))
2306 if (redraw_current_line)
2307 draw_view_line(view, view->lineno - view->offset);
2308 /* FIXME: Stupid hack to workaround bug where the message from
2309 * scrolling up one line when impossible followed by scrolling
2310 * down one line is not removed by the next action. */
2313 wrefresh(view->win);
2319 /* Scroll frontend */
2321 scroll_view(struct view *view, enum request request)
2325 assert(view_is_displayed(view));
2328 case REQ_SCROLL_PAGE_DOWN:
2329 lines = view->height;
2330 case REQ_SCROLL_LINE_DOWN:
2331 if (view->offset + lines > view->lines)
2332 lines = view->lines - view->offset;
2334 if (lines == 0 || view->offset + view->height >= view->lines) {
2335 report("Cannot scroll beyond the last line");
2340 case REQ_SCROLL_PAGE_UP:
2341 lines = view->height;
2342 case REQ_SCROLL_LINE_UP:
2343 if (lines > view->offset)
2344 lines = view->offset;
2347 report("Cannot scroll beyond the first line");
2355 die("request %d not handled in switch", request);
2358 do_scroll_view(view, lines);
2363 move_view(struct view *view, enum request request)
2365 int scroll_steps = 0;
2369 case REQ_MOVE_FIRST_LINE:
2370 steps = -view->lineno;
2373 case REQ_MOVE_LAST_LINE:
2374 steps = view->lines - view->lineno - 1;
2377 case REQ_MOVE_PAGE_UP:
2378 steps = view->height > view->lineno
2379 ? -view->lineno : -view->height;
2382 case REQ_MOVE_PAGE_DOWN:
2383 steps = view->lineno + view->height >= view->lines
2384 ? view->lines - view->lineno - 1 : view->height;
2396 die("request %d not handled in switch", request);
2399 if (steps <= 0 && view->lineno == 0) {
2400 report("Cannot move beyond the first line");
2403 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2404 report("Cannot move beyond the last line");
2408 /* Move the current line */
2409 view->lineno += steps;
2410 assert(0 <= view->lineno && view->lineno < view->lines);
2412 /* Check whether the view needs to be scrolled */
2413 if (view->lineno < view->offset ||
2414 view->lineno >= view->offset + view->height) {
2415 scroll_steps = steps;
2416 if (steps < 0 && -steps > view->offset) {
2417 scroll_steps = -view->offset;
2419 } else if (steps > 0) {
2420 if (view->lineno == view->lines - 1 &&
2421 view->lines > view->height) {
2422 scroll_steps = view->lines - view->offset - 1;
2423 if (scroll_steps >= view->height)
2424 scroll_steps -= view->height - 1;
2429 if (!view_is_displayed(view)) {
2430 view->offset += scroll_steps;
2431 assert(0 <= view->offset && view->offset < view->lines);
2432 view->ops->select(view, &view->line[view->lineno]);
2436 /* Repaint the old "current" line if we be scrolling */
2437 if (ABS(steps) < view->height)
2438 draw_view_line(view, view->lineno - steps - view->offset);
2441 do_scroll_view(view, scroll_steps);
2445 /* Draw the current line */
2446 draw_view_line(view, view->lineno - view->offset);
2448 wrefresh(view->win);
2457 static void search_view(struct view *view, enum request request);
2460 select_view_line(struct view *view, unsigned long lineno)
2462 if (lineno - view->offset >= view->height) {
2463 view->offset = lineno;
2464 view->lineno = lineno;
2465 if (view_is_displayed(view))
2469 unsigned long old_lineno = view->lineno - view->offset;
2471 view->lineno = lineno;
2472 if (view_is_displayed(view)) {
2473 draw_view_line(view, old_lineno);
2474 draw_view_line(view, view->lineno - view->offset);
2475 wrefresh(view->win);
2477 view->ops->select(view, &view->line[view->lineno]);
2483 find_next(struct view *view, enum request request)
2485 unsigned long lineno = view->lineno;
2490 report("No previous search");
2492 search_view(view, request);
2502 case REQ_SEARCH_BACK:
2511 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2512 lineno += direction;
2514 /* Note, lineno is unsigned long so will wrap around in which case it
2515 * will become bigger than view->lines. */
2516 for (; lineno < view->lines; lineno += direction) {
2517 if (view->ops->grep(view, &view->line[lineno])) {
2518 select_view_line(view, lineno);
2519 report("Line %ld matches '%s'", lineno + 1, view->grep);
2524 report("No match found for '%s'", view->grep);
2528 search_view(struct view *view, enum request request)
2533 regfree(view->regex);
2536 view->regex = calloc(1, sizeof(*view->regex));
2541 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2542 if (regex_err != 0) {
2543 char buf[SIZEOF_STR] = "unknown error";
2545 regerror(regex_err, view->regex, buf, sizeof(buf));
2546 report("Search failed: %s", buf);
2550 string_copy(view->grep, opt_search);
2552 find_next(view, request);
2556 * Incremental updating
2560 reset_view(struct view *view)
2564 for (i = 0; i < view->lines; i++)
2565 free(view->line[i].data);
2568 view->p_offset = view->offset;
2569 view->p_lineno = view->lineno;
2575 view->line_alloc = 0;
2577 view->update_secs = 0;
2581 free_argv(const char *argv[])
2585 for (argc = 0; argv[argc]; argc++)
2586 free((void *) argv[argc]);
2590 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2592 char buf[SIZEOF_STR];
2594 bool noreplace = flags == FORMAT_NONE;
2596 free_argv(dst_argv);
2598 for (argc = 0; src_argv[argc]; argc++) {
2599 const char *arg = src_argv[argc];
2603 char *next = strstr(arg, "%(");
2604 int len = next - arg;
2607 if (!next || noreplace) {
2608 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2613 } else if (!prefixcmp(next, "%(directory)")) {
2616 } else if (!prefixcmp(next, "%(file)")) {
2619 } else if (!prefixcmp(next, "%(ref)")) {
2620 value = *opt_ref ? opt_ref : "HEAD";
2622 } else if (!prefixcmp(next, "%(head)")) {
2625 } else if (!prefixcmp(next, "%(commit)")) {
2628 } else if (!prefixcmp(next, "%(blob)")) {
2632 report("Unknown replacement: `%s`", next);
2636 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2639 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2642 dst_argv[argc] = strdup(buf);
2643 if (!dst_argv[argc])
2647 dst_argv[argc] = NULL;
2649 return src_argv[argc] == NULL;
2653 restore_view_position(struct view *view)
2655 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2658 /* Changing the view position cancels the restoring. */
2659 /* FIXME: Changing back to the first line is not detected. */
2660 if (view->offset != 0 || view->lineno != 0) {
2661 view->p_restore = FALSE;
2665 if (view->p_lineno >= view->lines) {
2666 view->p_lineno = view->lines > 0 ? view->lines - 1 : 0;
2667 if (view->p_offset >= view->p_lineno) {
2668 unsigned long half = view->height / 2;
2670 if (view->p_lineno > half)
2671 view->p_offset = view->p_lineno - half;
2677 if (view_is_displayed(view) &&
2678 view->offset != view->p_offset &&
2679 view->lineno != view->p_lineno)
2682 view->offset = view->p_offset;
2683 view->lineno = view->p_lineno;
2684 view->p_restore = FALSE;
2690 end_update(struct view *view, bool force)
2694 while (!view->ops->read(view, NULL))
2697 set_nonblocking_input(FALSE);
2699 kill_io(view->pipe);
2700 done_io(view->pipe);
2705 setup_update(struct view *view, const char *vid)
2707 set_nonblocking_input(TRUE);
2709 string_copy_rev(view->vid, vid);
2710 view->pipe = &view->io;
2711 view->start_time = time(NULL);
2715 prepare_update(struct view *view, const char *argv[], const char *dir,
2716 enum format_flags flags)
2719 end_update(view, TRUE);
2720 return init_io_rd(&view->io, argv, dir, flags);
2724 prepare_update_file(struct view *view, const char *name)
2727 end_update(view, TRUE);
2728 return io_open(&view->io, name);
2732 begin_update(struct view *view, bool refresh)
2735 end_update(view, TRUE);
2738 if (!start_io(&view->io))
2742 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2745 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2748 /* Put the current ref_* value to the view title ref
2749 * member. This is needed by the blob view. Most other
2750 * views sets it automatically after loading because the
2751 * first line is a commit line. */
2752 string_copy_rev(view->ref, view->id);
2755 setup_update(view, view->id);
2760 #define ITEM_CHUNK_SIZE 256
2762 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2764 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2765 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2767 if (mem == NULL || num_chunks != num_chunks_new) {
2768 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2769 mem = realloc(mem, *size * item_size);
2775 static struct line *
2776 realloc_lines(struct view *view, size_t line_size)
2778 size_t alloc = view->line_alloc;
2779 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2780 sizeof(*view->line));
2786 view->line_alloc = alloc;
2791 update_view(struct view *view)
2793 char out_buffer[BUFSIZ * 2];
2795 /* Clear the view and redraw everything since the tree sorting
2796 * might have rearranged things. */
2797 bool redraw = view->lines == 0;
2798 bool can_read = TRUE;
2803 if (!io_can_read(view->pipe)) {
2804 if (view->lines == 0) {
2805 time_t secs = time(NULL) - view->start_time;
2807 if (secs > view->update_secs) {
2808 if (view->update_secs == 0)
2810 update_view_title(view);
2811 view->update_secs = secs;
2817 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2818 if (opt_iconv != ICONV_NONE) {
2819 ICONV_CONST char *inbuf = line;
2820 size_t inlen = strlen(line) + 1;
2822 char *outbuf = out_buffer;
2823 size_t outlen = sizeof(out_buffer);
2827 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2828 if (ret != (size_t) -1)
2832 if (!view->ops->read(view, line)) {
2833 report("Allocation failure");
2834 end_update(view, TRUE);
2840 unsigned long lines = view->lines;
2843 for (digits = 0; lines; digits++)
2846 /* Keep the displayed view in sync with line number scaling. */
2847 if (digits != view->digits) {
2848 view->digits = digits;
2849 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2854 if (io_error(view->pipe)) {
2855 report("Failed to read: %s", io_strerror(view->pipe));
2856 end_update(view, TRUE);
2858 } else if (io_eof(view->pipe)) {
2860 end_update(view, FALSE);
2863 if (restore_view_position(view))
2866 if (!view_is_displayed(view))
2870 redraw_view_from(view, 0);
2872 redraw_view_dirty(view);
2874 /* Update the title _after_ the redraw so that if the redraw picks up a
2875 * commit reference in view->ref it'll be available here. */
2876 update_view_title(view);
2877 update_display_cursor(view);
2881 static struct line *
2882 add_line_data(struct view *view, void *data, enum line_type type)
2886 if (!realloc_lines(view, view->lines + 1))
2889 line = &view->line[view->lines++];
2890 memset(line, 0, sizeof(*line));
2898 static struct line *
2899 add_line_text(struct view *view, const char *text, enum line_type type)
2901 char *data = text ? strdup(text) : NULL;
2903 return data ? add_line_data(view, data, type) : NULL;
2906 static struct line *
2907 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2909 char buf[SIZEOF_STR];
2912 va_start(args, fmt);
2913 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2917 return buf[0] ? add_line_text(view, buf, type) : NULL;
2925 OPEN_DEFAULT = 0, /* Use default view switching. */
2926 OPEN_SPLIT = 1, /* Split current view. */
2927 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2928 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2929 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2930 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2931 OPEN_PREPARED = 32, /* Open already prepared command. */
2935 open_view(struct view *prev, enum request request, enum open_flags flags)
2937 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2938 bool split = !!(flags & OPEN_SPLIT);
2939 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2940 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2941 struct view *view = VIEW(request);
2942 int nviews = displayed_views();
2943 struct view *base_view = display[0];
2945 if (view == prev && nviews == 1 && !reload) {
2946 report("Already in %s view", view->name);
2950 if (view->git_dir && !opt_git_dir[0]) {
2951 report("The %s view is disabled in pager view", view->name);
2959 } else if (!nomaximize) {
2960 /* Maximize the current view. */
2961 memset(display, 0, sizeof(display));
2963 display[current_view] = view;
2966 /* Resize the view when switching between split- and full-screen,
2967 * or when switching between two different full-screen views. */
2968 if (nviews != displayed_views() ||
2969 (nviews == 1 && base_view != display[0]))
2972 if (view->ops->open) {
2974 end_update(view, TRUE);
2975 if (!view->ops->open(view)) {
2976 report("Failed to load %s view", view->name);
2979 restore_view_position(view);
2981 } else if ((reload || strcmp(view->vid, view->id)) &&
2982 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2983 report("Failed to load %s view", view->name);
2987 if (split && prev->lineno - prev->offset >= prev->height) {
2988 /* Take the title line into account. */
2989 int lines = prev->lineno - prev->offset - prev->height + 1;
2991 /* Scroll the view that was split if the current line is
2992 * outside the new limited view. */
2993 do_scroll_view(prev, lines);
2996 if (prev && view != prev) {
2997 if (split && !backgrounded) {
2998 /* "Blur" the previous view. */
2999 update_view_title(prev);
3002 view->parent = prev;
3005 if (view->pipe && view->lines == 0) {
3006 /* Clear the old view and let the incremental updating refill
3009 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
3011 } else if (view_is_displayed(view)) {
3016 /* If the view is backgrounded the above calls to report()
3017 * won't redraw the view title. */
3019 update_view_title(view);
3023 open_external_viewer(const char *argv[], const char *dir)
3025 def_prog_mode(); /* save current tty modes */
3026 endwin(); /* restore original tty modes */
3027 run_io_fg(argv, dir);
3028 fprintf(stderr, "Press Enter to continue");
3031 redraw_display(TRUE);
3035 open_mergetool(const char *file)
3037 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
3039 open_external_viewer(mergetool_argv, opt_cdup);
3043 open_editor(bool from_root, const char *file)
3045 const char *editor_argv[] = { "vi", file, NULL };
3048 editor = getenv("GIT_EDITOR");
3049 if (!editor && *opt_editor)
3050 editor = opt_editor;
3052 editor = getenv("VISUAL");
3054 editor = getenv("EDITOR");
3058 editor_argv[0] = editor;
3059 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3063 open_run_request(enum request request)
3065 struct run_request *req = get_run_request(request);
3066 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3069 report("Unknown run request");
3073 if (format_argv(argv, req->argv, FORMAT_ALL))
3074 open_external_viewer(argv, NULL);
3079 * User request switch noodle
3083 view_driver(struct view *view, enum request request)
3087 if (request == REQ_NONE) {
3092 if (request > REQ_NONE) {
3093 open_run_request(request);
3094 /* FIXME: When all views can refresh always do this. */
3095 if (view == VIEW(REQ_VIEW_STATUS) ||
3096 view == VIEW(REQ_VIEW_MAIN) ||
3097 view == VIEW(REQ_VIEW_LOG) ||
3098 view == VIEW(REQ_VIEW_STAGE))
3099 request = REQ_REFRESH;
3104 if (view && view->lines) {
3105 request = view->ops->request(view, request, &view->line[view->lineno]);
3106 if (request == REQ_NONE)
3113 case REQ_MOVE_PAGE_UP:
3114 case REQ_MOVE_PAGE_DOWN:
3115 case REQ_MOVE_FIRST_LINE:
3116 case REQ_MOVE_LAST_LINE:
3117 move_view(view, request);
3120 case REQ_SCROLL_LINE_DOWN:
3121 case REQ_SCROLL_LINE_UP:
3122 case REQ_SCROLL_PAGE_DOWN:
3123 case REQ_SCROLL_PAGE_UP:
3124 scroll_view(view, request);
3127 case REQ_VIEW_BLAME:
3129 report("No file chosen, press %s to open tree view",
3130 get_key(REQ_VIEW_TREE));
3133 open_view(view, request, OPEN_DEFAULT);
3138 report("No file chosen, press %s to open tree view",
3139 get_key(REQ_VIEW_TREE));
3142 open_view(view, request, OPEN_DEFAULT);
3145 case REQ_VIEW_PAGER:
3146 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3147 report("No pager content, press %s to run command from prompt",
3148 get_key(REQ_PROMPT));
3151 open_view(view, request, OPEN_DEFAULT);
3154 case REQ_VIEW_STAGE:
3155 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3156 report("No stage content, press %s to open the status view and choose file",
3157 get_key(REQ_VIEW_STATUS));
3160 open_view(view, request, OPEN_DEFAULT);
3163 case REQ_VIEW_STATUS:
3164 if (opt_is_inside_work_tree == FALSE) {
3165 report("The status view requires a working tree");
3168 open_view(view, request, OPEN_DEFAULT);
3176 open_view(view, request, OPEN_DEFAULT);
3181 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3183 if ((view == VIEW(REQ_VIEW_DIFF) &&
3184 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3185 (view == VIEW(REQ_VIEW_DIFF) &&
3186 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3187 (view == VIEW(REQ_VIEW_STAGE) &&
3188 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3189 (view == VIEW(REQ_VIEW_BLOB) &&
3190 view->parent == VIEW(REQ_VIEW_TREE))) {
3193 view = view->parent;
3194 line = view->lineno;
3195 move_view(view, request);
3196 if (view_is_displayed(view))
3197 update_view_title(view);
3198 if (line != view->lineno)
3199 view->ops->request(view, REQ_ENTER,
3200 &view->line[view->lineno]);
3203 move_view(view, request);
3209 int nviews = displayed_views();
3210 int next_view = (current_view + 1) % nviews;
3212 if (next_view == current_view) {
3213 report("Only one view is displayed");
3217 current_view = next_view;
3218 /* Blur out the title of the previous view. */
3219 update_view_title(view);
3224 report("Refreshing is not yet supported for the %s view", view->name);
3228 if (displayed_views() == 2)
3229 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3232 case REQ_TOGGLE_LINENO:
3233 toggle_view_option(&opt_line_number, "line numbers");
3236 case REQ_TOGGLE_DATE:
3237 toggle_view_option(&opt_date, "date display");
3240 case REQ_TOGGLE_AUTHOR:
3241 toggle_view_option(&opt_author, "author display");
3244 case REQ_TOGGLE_REV_GRAPH:
3245 toggle_view_option(&opt_rev_graph, "revision graph display");
3248 case REQ_TOGGLE_REFS:
3249 toggle_view_option(&opt_show_refs, "reference display");
3253 case REQ_SEARCH_BACK:
3254 search_view(view, request);
3259 find_next(view, request);
3262 case REQ_STOP_LOADING:
3263 for (i = 0; i < ARRAY_SIZE(views); i++) {
3266 report("Stopped loading the %s view", view->name),
3267 end_update(view, TRUE);
3271 case REQ_SHOW_VERSION:
3272 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3275 case REQ_SCREEN_REDRAW:
3276 redraw_display(TRUE);
3280 report("Nothing to edit");
3284 report("Nothing to enter");
3287 case REQ_VIEW_CLOSE:
3288 /* XXX: Mark closed views by letting view->parent point to the
3289 * view itself. Parents to closed view should never be
3292 view->parent->parent != view->parent) {
3293 memset(display, 0, sizeof(display));
3295 display[current_view] = view->parent;
3296 view->parent = view;
3298 redraw_display(FALSE);
3307 report("Unknown key, press 'h' for help");
3316 * View backend utilities
3319 /* Parse author lines where the name may be empty:
3320 * author <email@address.tld> 1138474660 +0100
3323 parse_author_line(char *ident, char *author, size_t authorsize, struct tm *tm)
3325 char *nameend = strchr(ident, '<');
3326 char *emailend = strchr(ident, '>');
3328 if (nameend && emailend)
3329 *nameend = *emailend = 0;
3330 ident = chomp_string(ident);
3333 ident = chomp_string(nameend + 1);
3338 string_ncopy_do(author, authorsize, ident, strlen(ident));
3340 /* Parse epoch and timezone */
3341 if (emailend && emailend[1] == ' ') {
3342 char *secs = emailend + 2;
3343 char *zone = strchr(secs, ' ');
3344 time_t time = (time_t) atol(secs);
3346 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
3350 tz = ('0' - zone[1]) * 60 * 60 * 10;
3351 tz += ('0' - zone[2]) * 60 * 60;
3352 tz += ('0' - zone[3]) * 60;
3353 tz += ('0' - zone[4]) * 60;
3361 gmtime_r(&time, tm);
3365 static enum input_status
3366 select_commit_parent_handler(void *data, char *buf, int c)
3368 size_t parents = *(size_t *) data;
3375 parent = atoi(buf) * 10;
3378 if (parent > parents)
3384 select_commit_parent(const char *id, char rev[SIZEOF_REV])
3386 char buf[SIZEOF_STR * 4];
3387 const char *revlist_argv[] = {
3388 "git", "rev-list", "-1", "--parents", id, NULL
3392 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3393 !*chomp_string(buf) ||
3394 (parents = (strlen(buf) / 40) - 1) < 0) {
3395 report("Failed to get parent information");
3398 } else if (parents == 0) {
3399 report("The selected commit has no parents");
3404 char prompt[SIZEOF_STR];
3407 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3409 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3412 parents = atoi(result);
3415 string_copy_rev(rev, &buf[41 * parents]);
3424 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3426 char *text = line->data;
3428 if (opt_line_number && draw_lineno(view, lineno))
3431 draw_text(view, line->type, text, TRUE);
3436 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3438 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3439 char refbuf[SIZEOF_STR];
3442 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3443 ref = chomp_string(refbuf);
3448 /* This is the only fatal call, since it can "corrupt" the buffer. */
3449 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3456 add_pager_refs(struct view *view, struct line *line)
3458 char buf[SIZEOF_STR];
3459 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3461 size_t bufpos = 0, refpos = 0;
3462 const char *sep = "Refs: ";
3463 bool is_tag = FALSE;
3465 assert(line->type == LINE_COMMIT);
3467 refs = get_refs(commit_id);
3469 if (view == VIEW(REQ_VIEW_DIFF))
3470 goto try_add_describe_ref;
3475 struct ref *ref = refs[refpos];
3476 const char *fmt = ref->tag ? "%s[%s]" :
3477 ref->remote ? "%s<%s>" : "%s%s";
3479 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3484 } while (refs[refpos++]->next);
3486 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3487 try_add_describe_ref:
3488 /* Add <tag>-g<commit_id> "fake" reference. */
3489 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3496 add_line_text(view, buf, LINE_PP_REFS);
3500 pager_read(struct view *view, char *data)
3507 line = add_line_text(view, data, get_line_type(data));
3511 if (line->type == LINE_COMMIT &&
3512 (view == VIEW(REQ_VIEW_DIFF) ||
3513 view == VIEW(REQ_VIEW_LOG)))
3514 add_pager_refs(view, line);
3520 pager_request(struct view *view, enum request request, struct line *line)
3524 if (request != REQ_ENTER)
3527 if (line->type == LINE_COMMIT &&
3528 (view == VIEW(REQ_VIEW_LOG) ||
3529 view == VIEW(REQ_VIEW_PAGER))) {
3530 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3534 /* Always scroll the view even if it was split. That way
3535 * you can use Enter to scroll through the log view and
3536 * split open each commit diff. */
3537 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3539 /* FIXME: A minor workaround. Scrolling the view will call report("")
3540 * but if we are scrolling a non-current view this won't properly
3541 * update the view title. */
3543 update_view_title(view);
3549 pager_grep(struct view *view, struct line *line)
3552 char *text = line->data;
3557 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3564 pager_select(struct view *view, struct line *line)
3566 if (line->type == LINE_COMMIT) {
3567 char *text = (char *)line->data + STRING_SIZE("commit ");
3569 if (view != VIEW(REQ_VIEW_PAGER))
3570 string_copy_rev(view->ref, text);
3571 string_copy_rev(ref_commit, text);
3575 static struct view_ops pager_ops = {
3586 static const char *log_argv[SIZEOF_ARG] = {
3587 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3591 log_request(struct view *view, enum request request, struct line *line)
3596 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3599 return pager_request(view, request, line);
3603 static struct view_ops log_ops = {
3614 static const char *diff_argv[SIZEOF_ARG] = {
3615 "git", "show", "--pretty=fuller", "--no-color", "--root",
3616 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3619 static struct view_ops diff_ops = {
3635 help_open(struct view *view)
3637 char buf[SIZEOF_STR];
3641 if (view->lines > 0)
3644 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3646 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3649 if (req_info[i].request == REQ_NONE)
3652 if (!req_info[i].request) {
3653 add_line_text(view, "", LINE_DEFAULT);
3654 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3658 key = get_key(req_info[i].request);
3660 key = "(no key defined)";
3662 for (bufpos = 0; bufpos <= req_info[i].namelen; bufpos++) {
3663 buf[bufpos] = tolower(req_info[i].name[bufpos]);
3664 if (buf[bufpos] == '_')
3668 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s",
3669 key, buf, req_info[i].help);
3673 add_line_text(view, "", LINE_DEFAULT);
3674 add_line_text(view, "External commands:", LINE_DEFAULT);
3677 for (i = 0; i < run_requests; i++) {
3678 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3685 key = get_key_name(req->key);
3687 key = "(no key defined)";
3689 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3690 if (!string_format_from(buf, &bufpos, "%s%s",
3691 argc ? " " : "", req->argv[argc]))
3694 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3695 keymap_table[req->keymap].name, key, buf);
3701 static struct view_ops help_ops = {
3717 struct tree_stack_entry {
3718 struct tree_stack_entry *prev; /* Entry below this in the stack */
3719 unsigned long lineno; /* Line number to restore */
3720 char *name; /* Position of name in opt_path */
3723 /* The top of the path stack. */
3724 static struct tree_stack_entry *tree_stack = NULL;
3725 unsigned long tree_lineno = 0;
3728 pop_tree_stack_entry(void)
3730 struct tree_stack_entry *entry = tree_stack;
3732 tree_lineno = entry->lineno;
3734 tree_stack = entry->prev;
3739 push_tree_stack_entry(const char *name, unsigned long lineno)
3741 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3742 size_t pathlen = strlen(opt_path);
3747 entry->prev = tree_stack;
3748 entry->name = opt_path + pathlen;
3751 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3752 pop_tree_stack_entry();
3756 /* Move the current line to the first tree entry. */
3758 entry->lineno = lineno;
3761 /* Parse output from git-ls-tree(1):
3763 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3764 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3765 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3766 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3769 #define SIZEOF_TREE_ATTR \
3770 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3772 #define SIZEOF_TREE_MODE \
3773 STRING_SIZE("100644 ")
3775 #define TREE_ID_OFFSET \
3776 STRING_SIZE("100644 blob ")
3779 char id[SIZEOF_REV];
3781 struct tm time; /* Date from the author ident. */
3782 char author[75]; /* Author of the commit. */
3787 tree_path(struct line *line)
3789 return ((struct tree_entry *) line->data)->name;
3794 tree_compare_entry(struct line *line1, struct line *line2)
3796 if (line1->type != line2->type)
3797 return line1->type == LINE_TREE_DIR ? -1 : 1;
3798 return strcmp(tree_path(line1), tree_path(line2));
3801 static struct line *
3802 tree_entry(struct view *view, enum line_type type, const char *path,
3803 const char *mode, const char *id)
3805 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3806 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3808 if (!entry || !line) {
3813 strncpy(entry->name, path, strlen(path));
3815 entry->mode = strtoul(mode, NULL, 8);
3817 string_copy_rev(entry->id, id);
3823 tree_read_date(struct view *view, char *text, bool *read_date)
3825 static char author_name[SIZEOF_STR];
3826 static struct tm author_time;
3828 if (!text && *read_date) {
3833 char *path = *opt_path ? opt_path : ".";
3834 /* Find next entry to process */
3835 const char *log_file[] = {
3836 "git", "log", "--no-color", "--pretty=raw",
3837 "--cc", "--raw", view->id, "--", path, NULL
3841 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3842 report("Failed to load tree data");
3846 done_io(view->pipe);
3851 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3852 parse_author_line(text + STRING_SIZE("author "),
3853 author_name, sizeof(author_name), &author_time);
3855 } else if (*text == ':') {
3857 size_t annotated = 1;
3860 pos = strchr(text, '\t');
3864 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3865 text += strlen(opt_prefix);
3866 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3867 text += strlen(opt_path);
3868 pos = strchr(text, '/');
3872 for (i = 1; i < view->lines; i++) {
3873 struct line *line = &view->line[i];
3874 struct tree_entry *entry = line->data;
3876 annotated += !!*entry->author;
3877 if (*entry->author || strcmp(entry->name, text))
3880 string_copy(entry->author, author_name);
3881 memcpy(&entry->time, &author_time, sizeof(entry->time));
3886 if (annotated == view->lines)
3887 kill_io(view->pipe);
3893 tree_read(struct view *view, char *text)
3895 static bool read_date = FALSE;
3896 struct tree_entry *data;
3897 struct line *entry, *line;
3898 enum line_type type;
3899 size_t textlen = text ? strlen(text) : 0;
3900 char *path = text + SIZEOF_TREE_ATTR;
3902 if (read_date || !text)
3903 return tree_read_date(view, text, &read_date);
3905 if (textlen <= SIZEOF_TREE_ATTR)
3907 if (view->lines == 0 &&
3908 !tree_entry(view, LINE_TREE_PARENT, opt_path, NULL, NULL))
3911 /* Strip the path part ... */
3913 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3914 size_t striplen = strlen(opt_path);
3916 if (pathlen > striplen)
3917 memmove(path, path + striplen,
3918 pathlen - striplen + 1);
3920 /* Insert "link" to parent directory. */
3921 if (view->lines == 1 &&
3922 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3926 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3927 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3932 /* Skip "Directory ..." and ".." line. */
3933 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3934 if (tree_compare_entry(line, entry) <= 0)
3937 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3941 for (; line <= entry; line++)
3942 line->dirty = line->cleareol = 1;
3946 if (tree_lineno > view->lineno) {
3947 view->lineno = tree_lineno;
3955 tree_draw(struct view *view, struct line *line, unsigned int lineno)
3957 struct tree_entry *entry = line->data;
3959 if (line->type == LINE_TREE_PARENT) {
3960 if (draw_text(view, line->type, "Directory path /", TRUE))
3963 char mode[11] = "-r--r--r--";
3965 if (S_ISDIR(entry->mode)) {
3966 mode[3] = mode[6] = mode[9] = 'x';
3969 if (S_ISLNK(entry->mode))
3971 if (entry->mode & S_IWUSR)
3973 if (entry->mode & S_IXUSR)
3975 if (entry->mode & S_IXGRP)
3977 if (entry->mode & S_IXOTH)
3979 if (draw_field(view, LINE_TREE_MODE, mode, 11, TRUE))
3982 if (opt_author && draw_author(view, entry->author))
3985 if (opt_date && draw_date(view, *entry->author ? &entry->time : NULL))
3988 if (draw_text(view, line->type, entry->name, TRUE))
3996 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
3997 int fd = mkstemp(file);
4000 report("Failed to create temporary file");
4001 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
4002 report("Failed to save blob data to file");
4004 open_editor(FALSE, file);
4010 tree_request(struct view *view, enum request request, struct line *line)
4012 enum open_flags flags;
4015 case REQ_VIEW_BLAME:
4016 if (line->type != LINE_TREE_FILE) {
4017 report("Blame only supported for files");
4021 string_copy(opt_ref, view->vid);
4025 if (line->type != LINE_TREE_FILE) {
4026 report("Edit only supported for files");
4027 } else if (!is_head_commit(view->vid)) {
4030 open_editor(TRUE, opt_file);
4036 /* quit view if at top of tree */
4037 return REQ_VIEW_CLOSE;
4040 line = &view->line[1];
4050 /* Cleanup the stack if the tree view is at a different tree. */
4051 while (!*opt_path && tree_stack)
4052 pop_tree_stack_entry();
4054 switch (line->type) {
4056 /* Depending on whether it is a subdir or parent (updir?) link
4057 * mangle the path buffer. */
4058 if (line == &view->line[1] && *opt_path) {
4059 pop_tree_stack_entry();
4062 const char *basename = tree_path(line);
4064 push_tree_stack_entry(basename, view->lineno);
4067 /* Trees and subtrees share the same ID, so they are not not
4068 * unique like blobs. */
4069 flags = OPEN_RELOAD;
4070 request = REQ_VIEW_TREE;
4073 case LINE_TREE_FILE:
4074 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4075 request = REQ_VIEW_BLOB;
4082 open_view(view, request, flags);
4083 if (request == REQ_VIEW_TREE)
4084 view->lineno = tree_lineno;
4090 tree_select(struct view *view, struct line *line)
4092 struct tree_entry *entry = line->data;
4094 if (line->type == LINE_TREE_FILE) {
4095 string_copy_rev(ref_blob, entry->id);
4096 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4098 } else if (line->type != LINE_TREE_DIR) {
4102 string_copy_rev(view->ref, entry->id);
4105 static const char *tree_argv[SIZEOF_ARG] = {
4106 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4109 static struct view_ops tree_ops = {
4121 blob_read(struct view *view, char *line)
4125 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4129 blob_request(struct view *view, enum request request, struct line *line)
4136 return pager_request(view, request, line);
4140 static const char *blob_argv[SIZEOF_ARG] = {
4141 "git", "cat-file", "blob", "%(blob)", NULL
4144 static struct view_ops blob_ops = {
4158 * Loading the blame view is a two phase job:
4160 * 1. File content is read either using opt_file from the
4161 * filesystem or using git-cat-file.
4162 * 2. Then blame information is incrementally added by
4163 * reading output from git-blame.
4166 static const char *blame_head_argv[] = {
4167 "git", "blame", "--incremental", "--", "%(file)", NULL
4170 static const char *blame_ref_argv[] = {
4171 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4174 static const char *blame_cat_file_argv[] = {
4175 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4178 struct blame_commit {
4179 char id[SIZEOF_REV]; /* SHA1 ID. */
4180 char title[128]; /* First line of the commit message. */
4181 char author[75]; /* Author of the commit. */
4182 struct tm time; /* Date from the author ident. */
4183 char filename[128]; /* Name of file. */
4184 bool has_previous; /* Was a "previous" line detected. */
4188 struct blame_commit *commit;
4193 blame_open(struct view *view)
4195 if (*opt_ref || !io_open(&view->io, opt_file)) {
4196 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4200 setup_update(view, opt_file);
4201 string_format(view->ref, "%s ...", opt_file);
4206 static struct blame_commit *
4207 get_blame_commit(struct view *view, const char *id)
4211 for (i = 0; i < view->lines; i++) {
4212 struct blame *blame = view->line[i].data;
4217 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4218 return blame->commit;
4222 struct blame_commit *commit = calloc(1, sizeof(*commit));
4225 string_ncopy(commit->id, id, SIZEOF_REV);
4231 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4233 const char *pos = *posref;
4236 pos = strchr(pos + 1, ' ');
4237 if (!pos || !isdigit(pos[1]))
4239 *number = atoi(pos + 1);
4240 if (*number < min || *number > max)
4247 static struct blame_commit *
4248 parse_blame_commit(struct view *view, const char *text, int *blamed)
4250 struct blame_commit *commit;
4251 struct blame *blame;
4252 const char *pos = text + SIZEOF_REV - 1;
4256 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
4259 if (!parse_number(&pos, &lineno, 1, view->lines) ||
4260 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4263 commit = get_blame_commit(view, text);
4269 struct line *line = &view->line[lineno + group - 1];
4272 blame->commit = commit;
4280 blame_read_file(struct view *view, const char *line, bool *read_file)
4283 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4286 if (view->lines == 0 && !view->parent)
4287 die("No blame exist for %s", view->vid);
4289 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4290 report("Failed to load blame data");
4294 done_io(view->pipe);
4300 size_t linelen = strlen(line);
4301 struct blame *blame = malloc(sizeof(*blame) + linelen);
4303 blame->commit = NULL;
4304 strncpy(blame->text, line, linelen);
4305 blame->text[linelen] = 0;
4306 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4311 match_blame_header(const char *name, char **line)
4313 size_t namelen = strlen(name);
4314 bool matched = !strncmp(name, *line, namelen);
4323 blame_read(struct view *view, char *line)
4325 static struct blame_commit *commit = NULL;
4326 static int blamed = 0;
4327 static time_t author_time;
4328 static bool read_file = TRUE;
4331 return blame_read_file(view, line, &read_file);
4338 string_format(view->ref, "%s", view->vid);
4339 if (view_is_displayed(view)) {
4340 update_view_title(view);
4341 redraw_view_from(view, 0);
4347 commit = parse_blame_commit(view, line, &blamed);
4348 string_format(view->ref, "%s %2d%%", view->vid,
4349 view->lines ? blamed * 100 / view->lines : 0);
4351 } else if (match_blame_header("author ", &line)) {
4352 string_ncopy(commit->author, line, strlen(line));
4354 } else if (match_blame_header("author-time ", &line)) {
4355 author_time = (time_t) atol(line);
4357 } else if (match_blame_header("author-tz ", &line)) {
4360 tz = ('0' - line[1]) * 60 * 60 * 10;
4361 tz += ('0' - line[2]) * 60 * 60;
4362 tz += ('0' - line[3]) * 60;
4363 tz += ('0' - line[4]) * 60;
4369 gmtime_r(&author_time, &commit->time);
4371 } else if (match_blame_header("summary ", &line)) {
4372 string_ncopy(commit->title, line, strlen(line));
4374 } else if (match_blame_header("previous ", &line)) {
4375 commit->has_previous = TRUE;
4377 } else if (match_blame_header("filename ", &line)) {
4378 string_ncopy(commit->filename, line, strlen(line));
4386 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4388 struct blame *blame = line->data;
4389 struct tm *time = NULL;
4390 const char *id = NULL, *author = NULL;
4392 if (blame->commit && *blame->commit->filename) {
4393 id = blame->commit->id;
4394 author = blame->commit->author;
4395 time = &blame->commit->time;
4398 if (opt_date && draw_date(view, time))
4401 if (opt_author && draw_author(view, author))
4404 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4407 if (draw_lineno(view, lineno))
4410 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4415 check_blame_commit(struct blame *blame)
4418 report("Commit data not loaded yet");
4419 else if (!strcmp(blame->commit->id, NULL_ID))
4420 report("No commit exist for the selected line");
4427 blame_request(struct view *view, enum request request, struct line *line)
4429 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4430 struct blame *blame = line->data;
4433 case REQ_VIEW_BLAME:
4434 if (check_blame_commit(blame)) {
4435 string_copy(opt_ref, blame->commit->id);
4436 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4441 if (check_blame_commit(blame) &&
4442 select_commit_parent(blame->commit->id, opt_ref))
4443 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4447 if (!blame->commit) {
4448 report("No commit loaded yet");
4452 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4453 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4456 if (!strcmp(blame->commit->id, NULL_ID)) {
4457 struct view *diff = VIEW(REQ_VIEW_DIFF);
4458 const char *diff_index_argv[] = {
4459 "git", "diff-index", "--root", "--patch-with-stat",
4460 "-C", "-M", "HEAD", "--", view->vid, NULL
4463 if (!blame->commit->has_previous) {
4464 diff_index_argv[1] = "diff";
4465 diff_index_argv[2] = "--no-color";
4466 diff_index_argv[6] = "--";
4467 diff_index_argv[7] = "/dev/null";
4470 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4471 report("Failed to allocate diff command");
4474 flags |= OPEN_PREPARED;
4477 open_view(view, REQ_VIEW_DIFF, flags);
4478 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4479 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4490 blame_grep(struct view *view, struct line *line)
4492 struct blame *blame = line->data;
4493 struct blame_commit *commit = blame->commit;
4496 #define MATCH(text, on) \
4497 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4500 char buf[DATE_COLS + 1];
4502 if (MATCH(commit->title, 1) ||
4503 MATCH(commit->author, opt_author) ||
4504 MATCH(commit->id, opt_date))
4507 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4512 return MATCH(blame->text, 1);
4518 blame_select(struct view *view, struct line *line)
4520 struct blame *blame = line->data;
4521 struct blame_commit *commit = blame->commit;
4526 if (!strcmp(commit->id, NULL_ID))
4527 string_ncopy(ref_commit, "HEAD", 4);
4529 string_copy_rev(ref_commit, commit->id);
4532 static struct view_ops blame_ops = {
4551 char rev[SIZEOF_REV];
4552 char name[SIZEOF_STR];
4556 char rev[SIZEOF_REV];
4557 char name[SIZEOF_STR];
4561 static char status_onbranch[SIZEOF_STR];
4562 static struct status stage_status;
4563 static enum line_type stage_line_type;
4564 static size_t stage_chunks;
4565 static int *stage_chunk;
4567 /* This should work even for the "On branch" line. */
4569 status_has_none(struct view *view, struct line *line)
4571 return line < view->line + view->lines && !line[1].data;
4574 /* Get fields from the diff line:
4575 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4578 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4580 const char *old_mode = buf + 1;
4581 const char *new_mode = buf + 8;
4582 const char *old_rev = buf + 15;
4583 const char *new_rev = buf + 56;
4584 const char *status = buf + 97;
4587 old_mode[-1] != ':' ||
4588 new_mode[-1] != ' ' ||
4589 old_rev[-1] != ' ' ||
4590 new_rev[-1] != ' ' ||
4594 file->status = *status;
4596 string_copy_rev(file->old.rev, old_rev);
4597 string_copy_rev(file->new.rev, new_rev);
4599 file->old.mode = strtoul(old_mode, NULL, 8);
4600 file->new.mode = strtoul(new_mode, NULL, 8);
4602 file->old.name[0] = file->new.name[0] = 0;
4608 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4610 struct status *file = NULL;
4611 struct status *unmerged = NULL;
4615 if (!run_io(&io, argv, NULL, IO_RD))
4618 add_line_data(view, NULL, type);
4620 while ((buf = io_get(&io, 0, TRUE))) {
4622 file = calloc(1, sizeof(*file));
4623 if (!file || !add_line_data(view, file, type))
4627 /* Parse diff info part. */
4629 file->status = status;
4631 string_copy(file->old.rev, NULL_ID);
4633 } else if (!file->status) {
4634 if (!status_get_diff(file, buf, strlen(buf)))
4637 buf = io_get(&io, 0, TRUE);
4641 /* Collapse all 'M'odified entries that follow a
4642 * associated 'U'nmerged entry. */
4643 if (file->status == 'U') {
4646 } else if (unmerged) {
4647 int collapse = !strcmp(buf, unmerged->new.name);
4659 /* Grab the old name for rename/copy. */
4660 if (!*file->old.name &&
4661 (file->status == 'R' || file->status == 'C')) {
4662 string_ncopy(file->old.name, buf, strlen(buf));
4664 buf = io_get(&io, 0, TRUE);
4669 /* git-ls-files just delivers a NUL separated list of
4670 * file names similar to the second half of the
4671 * git-diff-* output. */
4672 string_ncopy(file->new.name, buf, strlen(buf));
4673 if (!*file->old.name)
4674 string_copy(file->old.name, file->new.name);
4678 if (io_error(&io)) {
4684 if (!view->line[view->lines - 1].data)
4685 add_line_data(view, NULL, LINE_STAT_NONE);
4691 /* Don't show unmerged entries in the staged section. */
4692 static const char *status_diff_index_argv[] = {
4693 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4694 "--cached", "-M", "HEAD", NULL
4697 static const char *status_diff_files_argv[] = {
4698 "git", "diff-files", "-z", NULL
4701 static const char *status_list_other_argv[] = {
4702 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4705 static const char *status_list_no_head_argv[] = {
4706 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4709 static const char *update_index_argv[] = {
4710 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4713 /* Restore the previous line number to stay in the context or select a
4714 * line with something that can be updated. */
4716 status_restore(struct view *view)
4718 if (view->p_lineno >= view->lines)
4719 view->p_lineno = view->lines - 1;
4720 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4722 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4725 /* If the above fails, always skip the "On branch" line. */
4726 if (view->p_lineno < view->lines)
4727 view->lineno = view->p_lineno;
4731 if (view->lineno < view->offset)
4732 view->offset = view->lineno;
4733 else if (view->offset + view->height <= view->lineno)
4734 view->offset = view->lineno - view->height + 1;
4736 view->p_restore = FALSE;
4739 /* First parse staged info using git-diff-index(1), then parse unstaged
4740 * info using git-diff-files(1), and finally untracked files using
4741 * git-ls-files(1). */
4743 status_open(struct view *view)
4747 add_line_data(view, NULL, LINE_STAT_HEAD);
4748 if (is_initial_commit())
4749 string_copy(status_onbranch, "Initial commit");
4750 else if (!*opt_head)
4751 string_copy(status_onbranch, "Not currently on any branch");
4752 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4755 run_io_bg(update_index_argv);
4757 if (is_initial_commit()) {
4758 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4760 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4764 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4765 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4768 /* Restore the exact position or use the specialized restore
4770 if (!view->p_restore)
4771 status_restore(view);
4776 status_draw(struct view *view, struct line *line, unsigned int lineno)
4778 struct status *status = line->data;
4779 enum line_type type;
4783 switch (line->type) {
4784 case LINE_STAT_STAGED:
4785 type = LINE_STAT_SECTION;
4786 text = "Changes to be committed:";
4789 case LINE_STAT_UNSTAGED:
4790 type = LINE_STAT_SECTION;
4791 text = "Changed but not updated:";
4794 case LINE_STAT_UNTRACKED:
4795 type = LINE_STAT_SECTION;
4796 text = "Untracked files:";
4799 case LINE_STAT_NONE:
4800 type = LINE_DEFAULT;
4801 text = " (no files)";
4804 case LINE_STAT_HEAD:
4805 type = LINE_STAT_HEAD;
4806 text = status_onbranch;
4813 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4815 buf[0] = status->status;
4816 if (draw_text(view, line->type, buf, TRUE))
4818 type = LINE_DEFAULT;
4819 text = status->new.name;
4822 draw_text(view, type, text, TRUE);
4827 status_enter(struct view *view, struct line *line)
4829 struct status *status = line->data;
4830 const char *oldpath = status ? status->old.name : NULL;
4831 /* Diffs for unmerged entries are empty when passing the new
4832 * path, so leave it empty. */
4833 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4835 enum open_flags split;
4836 struct view *stage = VIEW(REQ_VIEW_STAGE);
4838 if (line->type == LINE_STAT_NONE ||
4839 (!status && line[1].type == LINE_STAT_NONE)) {
4840 report("No file to diff");
4844 switch (line->type) {
4845 case LINE_STAT_STAGED:
4846 if (is_initial_commit()) {
4847 const char *no_head_diff_argv[] = {
4848 "git", "diff", "--no-color", "--patch-with-stat",
4849 "--", "/dev/null", newpath, NULL
4852 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4855 const char *index_show_argv[] = {
4856 "git", "diff-index", "--root", "--patch-with-stat",
4857 "-C", "-M", "--cached", "HEAD", "--",
4858 oldpath, newpath, NULL
4861 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4866 info = "Staged changes to %s";
4868 info = "Staged changes";
4871 case LINE_STAT_UNSTAGED:
4873 const char *files_show_argv[] = {
4874 "git", "diff-files", "--root", "--patch-with-stat",
4875 "-C", "-M", "--", oldpath, newpath, NULL
4878 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4881 info = "Unstaged changes to %s";
4883 info = "Unstaged changes";
4886 case LINE_STAT_UNTRACKED:
4888 report("No file to show");
4892 if (!suffixcmp(status->new.name, -1, "/")) {
4893 report("Cannot display a directory");
4897 if (!prepare_update_file(stage, newpath))
4899 info = "Untracked file %s";
4902 case LINE_STAT_HEAD:
4906 die("line type %d not handled in switch", line->type);
4909 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4910 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
4911 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4913 stage_status = *status;
4915 memset(&stage_status, 0, sizeof(stage_status));
4918 stage_line_type = line->type;
4920 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4927 status_exists(struct status *status, enum line_type type)
4929 struct view *view = VIEW(REQ_VIEW_STATUS);
4930 unsigned long lineno;
4932 for (lineno = 0; lineno < view->lines; lineno++) {
4933 struct line *line = &view->line[lineno];
4934 struct status *pos = line->data;
4936 if (line->type != type)
4938 if (!pos && (!status || !status->status) && line[1].data) {
4939 select_view_line(view, lineno);
4942 if (pos && !strcmp(status->new.name, pos->new.name)) {
4943 select_view_line(view, lineno);
4953 status_update_prepare(struct io *io, enum line_type type)
4955 const char *staged_argv[] = {
4956 "git", "update-index", "-z", "--index-info", NULL
4958 const char *others_argv[] = {
4959 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4963 case LINE_STAT_STAGED:
4964 return run_io(io, staged_argv, opt_cdup, IO_WR);
4966 case LINE_STAT_UNSTAGED:
4967 return run_io(io, others_argv, opt_cdup, IO_WR);
4969 case LINE_STAT_UNTRACKED:
4970 return run_io(io, others_argv, NULL, IO_WR);
4973 die("line type %d not handled in switch", type);
4979 status_update_write(struct io *io, struct status *status, enum line_type type)
4981 char buf[SIZEOF_STR];
4985 case LINE_STAT_STAGED:
4986 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4989 status->old.name, 0))
4993 case LINE_STAT_UNSTAGED:
4994 case LINE_STAT_UNTRACKED:
4995 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
5000 die("line type %d not handled in switch", type);
5003 return io_write(io, buf, bufsize);
5007 status_update_file(struct status *status, enum line_type type)
5012 if (!status_update_prepare(&io, type))
5015 result = status_update_write(&io, status, type);
5021 status_update_files(struct view *view, struct line *line)
5025 struct line *pos = view->line + view->lines;
5029 if (!status_update_prepare(&io, line->type))
5032 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5035 for (file = 0, done = 0; result && file < files; line++, file++) {
5036 int almost_done = file * 100 / files;
5038 if (almost_done > done) {
5040 string_format(view->ref, "updating file %u of %u (%d%% done)",
5042 update_view_title(view);
5044 result = status_update_write(&io, line->data, line->type);
5052 status_update(struct view *view)
5054 struct line *line = &view->line[view->lineno];
5056 assert(view->lines);
5059 /* This should work even for the "On branch" line. */
5060 if (line < view->line + view->lines && !line[1].data) {
5061 report("Nothing to update");
5065 if (!status_update_files(view, line + 1)) {
5066 report("Failed to update file status");
5070 } else if (!status_update_file(line->data, line->type)) {
5071 report("Failed to update file status");
5079 status_revert(struct status *status, enum line_type type, bool has_none)
5081 if (!status || type != LINE_STAT_UNSTAGED) {
5082 if (type == LINE_STAT_STAGED) {
5083 report("Cannot revert changes to staged files");
5084 } else if (type == LINE_STAT_UNTRACKED) {
5085 report("Cannot revert changes to untracked files");
5086 } else if (has_none) {
5087 report("Nothing to revert");
5089 report("Cannot revert changes to multiple files");
5094 const char *checkout_argv[] = {
5095 "git", "checkout", "--", status->old.name, NULL
5098 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5100 return run_io_fg(checkout_argv, opt_cdup);
5105 status_request(struct view *view, enum request request, struct line *line)
5107 struct status *status = line->data;
5110 case REQ_STATUS_UPDATE:
5111 if (!status_update(view))
5115 case REQ_STATUS_REVERT:
5116 if (!status_revert(status, line->type, status_has_none(view, line)))
5120 case REQ_STATUS_MERGE:
5121 if (!status || status->status != 'U') {
5122 report("Merging only possible for files with unmerged status ('U').");
5125 open_mergetool(status->new.name);
5131 if (status->status == 'D') {
5132 report("File has been deleted.");
5136 open_editor(status->status != '?', status->new.name);
5139 case REQ_VIEW_BLAME:
5141 string_copy(opt_file, status->new.name);
5147 /* After returning the status view has been split to
5148 * show the stage view. No further reloading is
5150 status_enter(view, line);
5154 /* Simply reload the view. */
5161 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5167 status_select(struct view *view, struct line *line)
5169 struct status *status = line->data;
5170 char file[SIZEOF_STR] = "all files";
5174 if (status && !string_format(file, "'%s'", status->new.name))
5177 if (!status && line[1].type == LINE_STAT_NONE)
5180 switch (line->type) {
5181 case LINE_STAT_STAGED:
5182 text = "Press %s to unstage %s for commit";
5185 case LINE_STAT_UNSTAGED:
5186 text = "Press %s to stage %s for commit";
5189 case LINE_STAT_UNTRACKED:
5190 text = "Press %s to stage %s for addition";
5193 case LINE_STAT_HEAD:
5194 case LINE_STAT_NONE:
5195 text = "Nothing to update";
5199 die("line type %d not handled in switch", line->type);
5202 if (status && status->status == 'U') {
5203 text = "Press %s to resolve conflict in %s";
5204 key = get_key(REQ_STATUS_MERGE);
5207 key = get_key(REQ_STATUS_UPDATE);
5210 string_format(view->ref, text, key, file);
5214 status_grep(struct view *view, struct line *line)
5216 struct status *status = line->data;
5217 enum { S_STATUS, S_NAME, S_END } state;
5224 for (state = S_STATUS; state < S_END; state++) {
5228 case S_NAME: text = status->new.name; break;
5230 buf[0] = status->status;
5238 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5245 static struct view_ops status_ops = {
5258 stage_diff_write(struct io *io, struct line *line, struct line *end)
5260 while (line < end) {
5261 if (!io_write(io, line->data, strlen(line->data)) ||
5262 !io_write(io, "\n", 1))
5265 if (line->type == LINE_DIFF_CHUNK ||
5266 line->type == LINE_DIFF_HEADER)
5273 static struct line *
5274 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5276 for (; view->line < line; line--)
5277 if (line->type == type)
5284 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5286 const char *apply_argv[SIZEOF_ARG] = {
5287 "git", "apply", "--whitespace=nowarn", NULL
5289 struct line *diff_hdr;
5293 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5298 apply_argv[argc++] = "--cached";
5299 if (revert || stage_line_type == LINE_STAT_STAGED)
5300 apply_argv[argc++] = "-R";
5301 apply_argv[argc++] = "-";
5302 apply_argv[argc++] = NULL;
5303 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5306 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5307 !stage_diff_write(&io, chunk, view->line + view->lines))
5311 run_io_bg(update_index_argv);
5313 return chunk ? TRUE : FALSE;
5317 stage_update(struct view *view, struct line *line)
5319 struct line *chunk = NULL;
5321 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5322 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5325 if (!stage_apply_chunk(view, chunk, FALSE)) {
5326 report("Failed to apply chunk");
5330 } else if (!stage_status.status) {
5331 view = VIEW(REQ_VIEW_STATUS);
5333 for (line = view->line; line < view->line + view->lines; line++)
5334 if (line->type == stage_line_type)
5337 if (!status_update_files(view, line + 1)) {
5338 report("Failed to update files");
5342 } else if (!status_update_file(&stage_status, stage_line_type)) {
5343 report("Failed to update file");
5351 stage_revert(struct view *view, struct line *line)
5353 struct line *chunk = NULL;
5355 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5356 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5359 if (!prompt_yesno("Are you sure you want to revert changes?"))
5362 if (!stage_apply_chunk(view, chunk, TRUE)) {
5363 report("Failed to revert chunk");
5369 return status_revert(stage_status.status ? &stage_status : NULL,
5370 stage_line_type, FALSE);
5376 stage_next(struct view *view, struct line *line)
5380 if (!stage_chunks) {
5381 static size_t alloc = 0;
5384 for (line = view->line; line < view->line + view->lines; line++) {
5385 if (line->type != LINE_DIFF_CHUNK)
5388 tmp = realloc_items(stage_chunk, &alloc,
5389 stage_chunks, sizeof(*tmp));
5391 report("Allocation failure");
5396 stage_chunk[stage_chunks++] = line - view->line;
5400 for (i = 0; i < stage_chunks; i++) {
5401 if (stage_chunk[i] > view->lineno) {
5402 do_scroll_view(view, stage_chunk[i] - view->lineno);
5403 report("Chunk %d of %d", i + 1, stage_chunks);
5408 report("No next chunk found");
5412 stage_request(struct view *view, enum request request, struct line *line)
5415 case REQ_STATUS_UPDATE:
5416 if (!stage_update(view, line))
5420 case REQ_STATUS_REVERT:
5421 if (!stage_revert(view, line))
5425 case REQ_STAGE_NEXT:
5426 if (stage_line_type == LINE_STAT_UNTRACKED) {
5427 report("File is untracked; press %s to add",
5428 get_key(REQ_STATUS_UPDATE));
5431 stage_next(view, line);
5435 if (!stage_status.new.name[0])
5437 if (stage_status.status == 'D') {
5438 report("File has been deleted.");
5442 open_editor(stage_status.status != '?', stage_status.new.name);
5446 /* Reload everything ... */
5449 case REQ_VIEW_BLAME:
5450 if (stage_status.new.name[0]) {
5451 string_copy(opt_file, stage_status.new.name);
5457 return pager_request(view, request, line);
5463 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5464 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5466 /* Check whether the staged entry still exists, and close the
5467 * stage view if it doesn't. */
5468 if (!status_exists(&stage_status, stage_line_type)) {
5469 status_restore(VIEW(REQ_VIEW_STATUS));
5470 return REQ_VIEW_CLOSE;
5473 if (stage_line_type == LINE_STAT_UNTRACKED) {
5474 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5475 report("Cannot display a directory");
5479 if (!prepare_update_file(view, stage_status.new.name)) {
5480 report("Failed to open file: %s", strerror(errno));
5484 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5489 static struct view_ops stage_ops = {
5506 char id[SIZEOF_REV]; /* SHA1 ID. */
5507 char title[128]; /* First line of the commit message. */
5508 char author[75]; /* Author of the commit. */
5509 struct tm time; /* Date from the author ident. */
5510 struct ref **refs; /* Repository references. */
5511 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5512 size_t graph_size; /* The width of the graph array. */
5513 bool has_parents; /* Rewritten --parents seen. */
5516 /* Size of rev graph with no "padding" columns */
5517 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5520 struct rev_graph *prev, *next, *parents;
5521 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5523 struct commit *commit;
5525 unsigned int boundary:1;
5528 /* Parents of the commit being visualized. */
5529 static struct rev_graph graph_parents[4];
5531 /* The current stack of revisions on the graph. */
5532 static struct rev_graph graph_stacks[4] = {
5533 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5534 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5535 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5536 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5540 graph_parent_is_merge(struct rev_graph *graph)
5542 return graph->parents->size > 1;
5546 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5548 struct commit *commit = graph->commit;
5550 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5551 commit->graph[commit->graph_size++] = symbol;
5555 clear_rev_graph(struct rev_graph *graph)
5557 graph->boundary = 0;
5558 graph->size = graph->pos = 0;
5559 graph->commit = NULL;
5560 memset(graph->parents, 0, sizeof(*graph->parents));
5564 done_rev_graph(struct rev_graph *graph)
5566 if (graph_parent_is_merge(graph) &&
5567 graph->pos < graph->size - 1 &&
5568 graph->next->size == graph->size + graph->parents->size - 1) {
5569 size_t i = graph->pos + graph->parents->size - 1;
5571 graph->commit->graph_size = i * 2;
5572 while (i < graph->next->size - 1) {
5573 append_to_rev_graph(graph, ' ');
5574 append_to_rev_graph(graph, '\\');
5579 clear_rev_graph(graph);
5583 push_rev_graph(struct rev_graph *graph, const char *parent)
5587 /* "Collapse" duplicate parents lines.
5589 * FIXME: This needs to also update update the drawn graph but
5590 * for now it just serves as a method for pruning graph lines. */
5591 for (i = 0; i < graph->size; i++)
5592 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5595 if (graph->size < SIZEOF_REVITEMS) {
5596 string_copy_rev(graph->rev[graph->size++], parent);
5601 get_rev_graph_symbol(struct rev_graph *graph)
5605 if (graph->boundary)
5606 symbol = REVGRAPH_BOUND;
5607 else if (graph->parents->size == 0)
5608 symbol = REVGRAPH_INIT;
5609 else if (graph_parent_is_merge(graph))
5610 symbol = REVGRAPH_MERGE;
5611 else if (graph->pos >= graph->size)
5612 symbol = REVGRAPH_BRANCH;
5614 symbol = REVGRAPH_COMMIT;
5620 draw_rev_graph(struct rev_graph *graph)
5623 chtype separator, line;
5625 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5626 static struct rev_filler fillers[] = {
5632 chtype symbol = get_rev_graph_symbol(graph);
5633 struct rev_filler *filler;
5636 if (opt_line_graphics)
5637 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5639 filler = &fillers[DEFAULT];
5641 for (i = 0; i < graph->pos; i++) {
5642 append_to_rev_graph(graph, filler->line);
5643 if (graph_parent_is_merge(graph->prev) &&
5644 graph->prev->pos == i)
5645 filler = &fillers[RSHARP];
5647 append_to_rev_graph(graph, filler->separator);
5650 /* Place the symbol for this revision. */
5651 append_to_rev_graph(graph, symbol);
5653 if (graph->prev->size > graph->size)
5654 filler = &fillers[RDIAG];
5656 filler = &fillers[DEFAULT];
5660 for (; i < graph->size; i++) {
5661 append_to_rev_graph(graph, filler->separator);
5662 append_to_rev_graph(graph, filler->line);
5663 if (graph_parent_is_merge(graph->prev) &&
5664 i < graph->prev->pos + graph->parents->size)
5665 filler = &fillers[RSHARP];
5666 if (graph->prev->size > graph->size)
5667 filler = &fillers[LDIAG];
5670 if (graph->prev->size > graph->size) {
5671 append_to_rev_graph(graph, filler->separator);
5672 if (filler->line != ' ')
5673 append_to_rev_graph(graph, filler->line);
5677 /* Prepare the next rev graph */
5679 prepare_rev_graph(struct rev_graph *graph)
5683 /* First, traverse all lines of revisions up to the active one. */
5684 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5685 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5688 push_rev_graph(graph->next, graph->rev[graph->pos]);
5691 /* Interleave the new revision parent(s). */
5692 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5693 push_rev_graph(graph->next, graph->parents->rev[i]);
5695 /* Lastly, put any remaining revisions. */
5696 for (i = graph->pos + 1; i < graph->size; i++)
5697 push_rev_graph(graph->next, graph->rev[i]);
5701 update_rev_graph(struct view *view, struct rev_graph *graph)
5703 /* If this is the finalizing update ... */
5705 prepare_rev_graph(graph);
5707 /* Graph visualization needs a one rev look-ahead,
5708 * so the first update doesn't visualize anything. */
5709 if (!graph->prev->commit)
5712 if (view->lines > 2)
5713 view->line[view->lines - 3].dirty = 1;
5714 if (view->lines > 1)
5715 view->line[view->lines - 2].dirty = 1;
5716 draw_rev_graph(graph->prev);
5717 done_rev_graph(graph->prev->prev);
5725 static const char *main_argv[SIZEOF_ARG] = {
5726 "git", "log", "--no-color", "--pretty=raw", "--parents",
5727 "--topo-order", "%(head)", NULL
5731 main_draw(struct view *view, struct line *line, unsigned int lineno)
5733 struct commit *commit = line->data;
5735 if (!*commit->author)
5738 if (opt_date && draw_date(view, &commit->time))
5741 if (opt_author && draw_author(view, commit->author))
5744 if (opt_rev_graph && commit->graph_size &&
5745 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5748 if (opt_show_refs && commit->refs) {
5752 enum line_type type;
5754 if (commit->refs[i]->head)
5755 type = LINE_MAIN_HEAD;
5756 else if (commit->refs[i]->ltag)
5757 type = LINE_MAIN_LOCAL_TAG;
5758 else if (commit->refs[i]->tag)
5759 type = LINE_MAIN_TAG;
5760 else if (commit->refs[i]->tracked)
5761 type = LINE_MAIN_TRACKED;
5762 else if (commit->refs[i]->remote)
5763 type = LINE_MAIN_REMOTE;
5765 type = LINE_MAIN_REF;
5767 if (draw_text(view, type, "[", TRUE) ||
5768 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5769 draw_text(view, type, "]", TRUE))
5772 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5774 } while (commit->refs[i++]->next);
5777 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5781 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5783 main_read(struct view *view, char *line)
5785 static struct rev_graph *graph = graph_stacks;
5786 enum line_type type;
5787 struct commit *commit;
5792 if (!view->lines && !view->parent)
5793 die("No revisions match the given arguments.");
5794 if (view->lines > 0) {
5795 commit = view->line[view->lines - 1].data;
5796 view->line[view->lines - 1].dirty = 1;
5797 if (!*commit->author) {
5800 graph->commit = NULL;
5803 update_rev_graph(view, graph);
5805 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5806 clear_rev_graph(&graph_stacks[i]);
5810 type = get_line_type(line);
5811 if (type == LINE_COMMIT) {
5812 commit = calloc(1, sizeof(struct commit));
5816 line += STRING_SIZE("commit ");
5818 graph->boundary = 1;
5822 string_copy_rev(commit->id, line);
5823 commit->refs = get_refs(commit->id);
5824 graph->commit = commit;
5825 add_line_data(view, commit, LINE_MAIN_COMMIT);
5827 while ((line = strchr(line, ' '))) {
5829 push_rev_graph(graph->parents, line);
5830 commit->has_parents = TRUE;
5837 commit = view->line[view->lines - 1].data;
5841 if (commit->has_parents)
5843 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5847 parse_author_line(line + STRING_SIZE("author "),
5848 commit->author, sizeof(commit->author),
5850 update_rev_graph(view, graph);
5851 graph = graph->next;
5855 /* Fill in the commit title if it has not already been set. */
5856 if (commit->title[0])
5859 /* Require titles to start with a non-space character at the
5860 * offset used by git log. */
5861 if (strncmp(line, " ", 4))
5864 /* Well, if the title starts with a whitespace character,
5865 * try to be forgiving. Otherwise we end up with no title. */
5866 while (isspace(*line))
5870 /* FIXME: More graceful handling of titles; append "..." to
5871 * shortened titles, etc. */
5873 string_ncopy(commit->title, line, strlen(line));
5874 view->line[view->lines - 1].dirty = 1;
5881 main_request(struct view *view, enum request request, struct line *line)
5883 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5887 open_view(view, REQ_VIEW_DIFF, flags);
5891 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5901 grep_refs(struct ref **refs, regex_t *regex)
5909 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5911 } while (refs[i++]->next);
5917 main_grep(struct view *view, struct line *line)
5919 struct commit *commit = line->data;
5920 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5921 char buf[DATE_COLS + 1];
5924 for (state = S_TITLE; state < S_END; state++) {
5928 case S_TITLE: text = commit->title; break;
5932 text = commit->author;
5937 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5944 if (grep_refs(commit->refs, view->regex) == TRUE)
5951 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5959 main_select(struct view *view, struct line *line)
5961 struct commit *commit = line->data;
5963 string_copy_rev(view->ref, commit->id);
5964 string_copy_rev(ref_commit, view->ref);
5967 static struct view_ops main_ops = {
5980 * Unicode / UTF-8 handling
5982 * NOTE: Much of the following code for dealing with unicode is derived from
5983 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5984 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5987 /* I've (over)annotated a lot of code snippets because I am not entirely
5988 * confident that the approach taken by this small UTF-8 interface is correct.
5992 unicode_width(unsigned long c)
5995 (c <= 0x115f /* Hangul Jamo */
5998 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
6000 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
6001 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
6002 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
6003 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
6004 || (c >= 0xffe0 && c <= 0xffe6)
6005 || (c >= 0x20000 && c <= 0x2fffd)
6006 || (c >= 0x30000 && c <= 0x3fffd)))
6010 return opt_tab_size;
6015 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
6016 * Illegal bytes are set one. */
6017 static const unsigned char utf8_bytes[256] = {
6018 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,
6019 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,
6020 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,
6021 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,
6022 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,
6023 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,
6024 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,
6025 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,
6028 /* Decode UTF-8 multi-byte representation into a unicode character. */
6029 static inline unsigned long
6030 utf8_to_unicode(const char *string, size_t length)
6032 unsigned long unicode;
6036 unicode = string[0];
6039 unicode = (string[0] & 0x1f) << 6;
6040 unicode += (string[1] & 0x3f);
6043 unicode = (string[0] & 0x0f) << 12;
6044 unicode += ((string[1] & 0x3f) << 6);
6045 unicode += (string[2] & 0x3f);
6048 unicode = (string[0] & 0x0f) << 18;
6049 unicode += ((string[1] & 0x3f) << 12);
6050 unicode += ((string[2] & 0x3f) << 6);
6051 unicode += (string[3] & 0x3f);
6054 unicode = (string[0] & 0x0f) << 24;
6055 unicode += ((string[1] & 0x3f) << 18);
6056 unicode += ((string[2] & 0x3f) << 12);
6057 unicode += ((string[3] & 0x3f) << 6);
6058 unicode += (string[4] & 0x3f);
6061 unicode = (string[0] & 0x01) << 30;
6062 unicode += ((string[1] & 0x3f) << 24);
6063 unicode += ((string[2] & 0x3f) << 18);
6064 unicode += ((string[3] & 0x3f) << 12);
6065 unicode += ((string[4] & 0x3f) << 6);
6066 unicode += (string[5] & 0x3f);
6069 die("Invalid unicode length");
6072 /* Invalid characters could return the special 0xfffd value but NUL
6073 * should be just as good. */
6074 return unicode > 0xffff ? 0 : unicode;
6077 /* Calculates how much of string can be shown within the given maximum width
6078 * and sets trimmed parameter to non-zero value if all of string could not be
6079 * shown. If the reserve flag is TRUE, it will reserve at least one
6080 * trailing character, which can be useful when drawing a delimiter.
6082 * Returns the number of bytes to output from string to satisfy max_width. */
6084 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
6086 const char *start = string;
6087 const char *end = strchr(string, '\0');
6088 unsigned char last_bytes = 0;
6089 size_t last_ucwidth = 0;
6094 while (string < end) {
6095 int c = *(unsigned char *) string;
6096 unsigned char bytes = utf8_bytes[c];
6098 unsigned long unicode;
6100 if (string + bytes > end)
6103 /* Change representation to figure out whether
6104 * it is a single- or double-width character. */
6106 unicode = utf8_to_unicode(string, bytes);
6107 /* FIXME: Graceful handling of invalid unicode character. */
6111 ucwidth = unicode_width(unicode);
6113 if (*width > max_width) {
6116 if (reserve && *width == max_width) {
6117 string -= last_bytes;
6118 *width -= last_ucwidth;
6125 last_ucwidth = ucwidth;
6128 return string - start;
6136 /* Whether or not the curses interface has been initialized. */
6137 static bool cursed = FALSE;
6139 /* The status window is used for polling keystrokes. */
6140 static WINDOW *status_win;
6142 static bool status_empty = FALSE;
6144 /* Update status and title window. */
6146 report(const char *msg, ...)
6148 struct view *view = display[current_view];
6154 char buf[SIZEOF_STR];
6157 va_start(args, msg);
6158 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6159 buf[sizeof(buf) - 1] = 0;
6160 buf[sizeof(buf) - 2] = '.';
6161 buf[sizeof(buf) - 3] = '.';
6162 buf[sizeof(buf) - 4] = '.';
6168 if (!status_empty || *msg) {
6171 va_start(args, msg);
6173 wmove(status_win, 0, 0);
6175 vwprintw(status_win, msg, args);
6176 status_empty = FALSE;
6178 status_empty = TRUE;
6180 wclrtoeol(status_win);
6181 wrefresh(status_win);
6186 update_view_title(view);
6187 update_display_cursor(view);
6190 /* Controls when nodelay should be in effect when polling user input. */
6192 set_nonblocking_input(bool loading)
6194 static unsigned int loading_views;
6196 if ((loading == FALSE && loading_views-- == 1) ||
6197 (loading == TRUE && loading_views++ == 0))
6198 nodelay(status_win, loading);
6206 /* Initialize the curses library */
6207 if (isatty(STDIN_FILENO)) {
6208 cursed = !!initscr();
6211 /* Leave stdin and stdout alone when acting as a pager. */
6212 opt_tty = fopen("/dev/tty", "r+");
6214 die("Failed to open /dev/tty");
6215 cursed = !!newterm(NULL, opt_tty, opt_tty);
6219 die("Failed to initialize curses");
6221 nonl(); /* Tell curses not to do NL->CR/NL on output */
6222 cbreak(); /* Take input chars one at a time, no wait for \n */
6223 noecho(); /* Don't echo input */
6224 leaveok(stdscr, TRUE);
6229 getmaxyx(stdscr, y, x);
6230 status_win = newwin(1, 0, y - 1, 0);
6232 die("Failed to create status window");
6234 /* Enable keyboard mapping */
6235 keypad(status_win, TRUE);
6236 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6238 TABSIZE = opt_tab_size;
6239 if (opt_line_graphics) {
6240 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6245 get_input(bool prompting)
6254 foreach_view (view, i)
6257 /* Refresh, accept single keystroke of input */
6258 key = wgetch(status_win);
6260 /* wgetch() with nodelay() enabled returns ERR when
6261 * there's no input. */
6265 } else if (key == KEY_RESIZE) {
6268 getmaxyx(stdscr, height, width);
6270 /* Resize the status view first so the cursor is
6271 * placed properly. */
6272 wresize(status_win, 1, width);
6273 mvwin(status_win, height - 1, 0);
6274 wrefresh(status_win);
6276 redraw_display(TRUE);
6286 prompt_input(const char *prompt, input_handler handler, void *data)
6288 enum input_status status = INPUT_OK;
6289 static char buf[SIZEOF_STR];
6294 while (status == INPUT_OK || status == INPUT_SKIP) {
6297 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6298 wclrtoeol(status_win);
6300 key = get_input(TRUE);
6305 status = pos ? INPUT_STOP : INPUT_CANCEL;
6312 status = INPUT_CANCEL;
6316 status = INPUT_CANCEL;
6320 if (pos >= sizeof(buf)) {
6321 report("Input string too long");
6325 status = handler(data, buf, key);
6326 if (status == INPUT_OK)
6327 buf[pos++] = (char) key;
6331 /* Clear the status window */
6332 status_empty = FALSE;
6335 if (status == INPUT_CANCEL)
6343 static enum input_status
6344 prompt_yesno_handler(void *data, char *buf, int c)
6346 if (c == 'y' || c == 'Y')
6348 if (c == 'n' || c == 'N')
6349 return INPUT_CANCEL;
6354 prompt_yesno(const char *prompt)
6356 char prompt2[SIZEOF_STR];
6358 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6361 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6364 static enum input_status
6365 read_prompt_handler(void *data, char *buf, int c)
6367 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6371 read_prompt(const char *prompt)
6373 return prompt_input(prompt, read_prompt_handler, NULL);
6377 * Repository properties
6381 git_properties(const char **argv, const char *separators,
6382 int (*read_property)(char *, size_t, char *, size_t))
6386 if (init_io_rd(&io, argv, NULL, FORMAT_NONE))
6387 return read_properties(&io, separators, read_property);
6391 static struct ref *refs = NULL;
6392 static size_t refs_alloc = 0;
6393 static size_t refs_size = 0;
6395 /* Id <-> ref store */
6396 static struct ref ***id_refs = NULL;
6397 static size_t id_refs_alloc = 0;
6398 static size_t id_refs_size = 0;
6401 compare_refs(const void *ref1_, const void *ref2_)
6403 const struct ref *ref1 = *(const struct ref **)ref1_;
6404 const struct ref *ref2 = *(const struct ref **)ref2_;
6406 if (ref1->tag != ref2->tag)
6407 return ref2->tag - ref1->tag;
6408 if (ref1->ltag != ref2->ltag)
6409 return ref2->ltag - ref2->ltag;
6410 if (ref1->head != ref2->head)
6411 return ref2->head - ref1->head;
6412 if (ref1->tracked != ref2->tracked)
6413 return ref2->tracked - ref1->tracked;
6414 if (ref1->remote != ref2->remote)
6415 return ref2->remote - ref1->remote;
6416 return strcmp(ref1->name, ref2->name);
6419 static struct ref **
6420 get_refs(const char *id)
6422 struct ref ***tmp_id_refs;
6423 struct ref **ref_list = NULL;
6424 size_t ref_list_alloc = 0;
6425 size_t ref_list_size = 0;
6428 for (i = 0; i < id_refs_size; i++)
6429 if (!strcmp(id, id_refs[i][0]->id))
6432 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6437 id_refs = tmp_id_refs;
6439 for (i = 0; i < refs_size; i++) {
6442 if (strcmp(id, refs[i].id))
6445 tmp = realloc_items(ref_list, &ref_list_alloc,
6446 ref_list_size + 1, sizeof(*ref_list));
6454 ref_list[ref_list_size] = &refs[i];
6455 /* XXX: The properties of the commit chains ensures that we can
6456 * safely modify the shared ref. The repo references will
6457 * always be similar for the same id. */
6458 ref_list[ref_list_size]->next = 1;
6464 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6465 ref_list[ref_list_size - 1]->next = 0;
6466 id_refs[id_refs_size++] = ref_list;
6473 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6478 bool remote = FALSE;
6479 bool tracked = FALSE;
6480 bool check_replace = FALSE;
6483 if (!prefixcmp(name, "refs/tags/")) {
6484 if (!suffixcmp(name, namelen, "^{}")) {
6487 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6488 check_replace = TRUE;
6494 namelen -= STRING_SIZE("refs/tags/");
6495 name += STRING_SIZE("refs/tags/");
6497 } else if (!prefixcmp(name, "refs/remotes/")) {
6499 namelen -= STRING_SIZE("refs/remotes/");
6500 name += STRING_SIZE("refs/remotes/");
6501 tracked = !strcmp(opt_remote, name);
6503 } else if (!prefixcmp(name, "refs/heads/")) {
6504 namelen -= STRING_SIZE("refs/heads/");
6505 name += STRING_SIZE("refs/heads/");
6506 head = !strncmp(opt_head, name, namelen);
6508 } else if (!strcmp(name, "HEAD")) {
6509 string_ncopy(opt_head_rev, id, idlen);
6513 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6514 /* it's an annotated tag, replace the previous sha1 with the
6515 * resolved commit id; relies on the fact git-ls-remote lists
6516 * the commit id of an annotated tag right before the commit id
6518 refs[refs_size - 1].ltag = ltag;
6519 string_copy_rev(refs[refs_size - 1].id, id);
6523 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6527 ref = &refs[refs_size++];
6528 ref->name = malloc(namelen + 1);
6532 strncpy(ref->name, name, namelen);
6533 ref->name[namelen] = 0;
6537 ref->remote = remote;
6538 ref->tracked = tracked;
6539 string_copy_rev(ref->id, id);
6547 static const char *ls_remote_argv[SIZEOF_ARG] = {
6548 "git", "ls-remote", ".", NULL
6550 static bool init = FALSE;
6553 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6560 while (refs_size > 0)
6561 free(refs[--refs_size].name);
6562 while (id_refs_size > 0)
6563 free(id_refs[--id_refs_size]);
6565 return git_properties(ls_remote_argv, "\t", read_ref);
6569 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6571 if (!strcmp(name, "i18n.commitencoding"))
6572 string_ncopy(opt_encoding, value, valuelen);
6574 if (!strcmp(name, "core.editor"))
6575 string_ncopy(opt_editor, value, valuelen);
6577 /* branch.<head>.remote */
6579 !strncmp(name, "branch.", 7) &&
6580 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6581 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6582 string_ncopy(opt_remote, value, valuelen);
6584 if (*opt_head && *opt_remote &&
6585 !strncmp(name, "branch.", 7) &&
6586 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6587 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6588 size_t from = strlen(opt_remote);
6590 if (!prefixcmp(value, "refs/heads/")) {
6591 value += STRING_SIZE("refs/heads/");
6592 valuelen -= STRING_SIZE("refs/heads/");
6595 if (!string_format_from(opt_remote, &from, "/%s", value))
6603 load_git_config(void)
6605 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6607 return git_properties(config_list_argv, "=", read_repo_config_option);
6611 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6613 if (!opt_git_dir[0]) {
6614 string_ncopy(opt_git_dir, name, namelen);
6616 } else if (opt_is_inside_work_tree == -1) {
6617 /* This can be 3 different values depending on the
6618 * version of git being used. If git-rev-parse does not
6619 * understand --is-inside-work-tree it will simply echo
6620 * the option else either "true" or "false" is printed.
6621 * Default to true for the unknown case. */
6622 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6624 } else if (*name == '.') {
6625 string_ncopy(opt_cdup, name, namelen);
6628 string_ncopy(opt_prefix, name, namelen);
6635 load_repo_info(void)
6637 const char *head_argv[] = {
6638 "git", "symbolic-ref", "HEAD", NULL
6640 const char *rev_parse_argv[] = {
6641 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6642 "--show-cdup", "--show-prefix", NULL
6645 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6646 chomp_string(opt_head);
6647 if (!prefixcmp(opt_head, "refs/heads/")) {
6648 char *offset = opt_head + STRING_SIZE("refs/heads/");
6650 memmove(opt_head, offset, strlen(offset) + 1);
6654 return git_properties(rev_parse_argv, "=", read_repo_info);
6658 read_properties(struct io *io, const char *separators,
6659 int (*read_property)(char *, size_t, char *, size_t))
6667 while (state == OK && (name = io_get(io, '\n', TRUE))) {
6672 name = chomp_string(name);
6673 namelen = strcspn(name, separators);
6675 if (name[namelen]) {
6677 value = chomp_string(name + namelen + 1);
6678 valuelen = strlen(value);
6685 state = read_property(name, namelen, value, valuelen);
6688 if (state != ERR && io_error(io))
6700 static void __NORETURN
6703 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6709 static void __NORETURN
6710 die(const char *err, ...)
6716 va_start(args, err);
6717 fputs("tig: ", stderr);
6718 vfprintf(stderr, err, args);
6719 fputs("\n", stderr);
6726 warn(const char *msg, ...)
6730 va_start(args, msg);
6731 fputs("tig warning: ", stderr);
6732 vfprintf(stderr, msg, args);
6733 fputs("\n", stderr);
6738 main(int argc, const char *argv[])
6740 const char **run_argv = NULL;
6742 enum request request;
6745 signal(SIGINT, quit);
6747 if (setlocale(LC_ALL, "")) {
6748 char *codeset = nl_langinfo(CODESET);
6750 string_ncopy(opt_codeset, codeset, strlen(codeset));
6753 if (load_repo_info() == ERR)
6754 die("Failed to load repo info.");
6756 if (load_options() == ERR)
6757 die("Failed to load user config.");
6759 if (load_git_config() == ERR)
6760 die("Failed to load repo config.");
6762 request = parse_options(argc, argv, &run_argv);
6763 if (request == REQ_NONE)
6766 /* Require a git repository unless when running in pager mode. */
6767 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6768 die("Not a git repository");
6770 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6773 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6774 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6775 if (opt_iconv == ICONV_NONE)
6776 die("Failed to initialize character set conversion");
6779 if (load_refs() == ERR)
6780 die("Failed to load refs.");
6782 foreach_view (view, i)
6783 argv_from_env(view->ops->argv, view->cmd_env);
6787 if (request == REQ_VIEW_PAGER || run_argv) {
6788 if (request == REQ_VIEW_PAGER)
6789 io_open(&VIEW(request)->io, "");
6790 else if (!prepare_update(VIEW(request), run_argv, NULL, FORMAT_NONE))
6791 die("Failed to format arguments");
6792 open_view(NULL, request, OPEN_PREPARED);
6796 while (view_driver(display[current_view], request)) {
6797 int key = get_input(FALSE);
6799 view = display[current_view];
6800 request = get_keybinding(view->keymap, key);
6802 /* Some low-level request handling. This keeps access to
6803 * status_win restricted. */
6807 char *cmd = read_prompt(":");
6810 struct view *next = VIEW(REQ_VIEW_PAGER);
6811 const char *argv[SIZEOF_ARG] = { "git" };
6814 /* When running random commands, initially show the
6815 * command in the title. However, it maybe later be
6816 * overwritten if a commit line is selected. */
6817 string_ncopy(next->ref, cmd, strlen(cmd));
6819 if (!argv_from_string(argv, &argc, cmd)) {
6820 report("Too many arguments");
6821 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6822 report("Failed to format command");
6824 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6832 case REQ_SEARCH_BACK:
6834 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6835 char *search = read_prompt(prompt);
6838 string_ncopy(opt_search, search, strlen(search));