1 /* Copyright (c) 2006-2009 Jonas Fonseca <fonseca@diku.dk>
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License as
5 * published by the Free Software Foundation; either version 2 of
6 * the License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
19 #define TIG_VERSION "unknown-version"
34 #include <sys/types.h>
37 #include <sys/select.h>
48 /* ncurses(3): Must be defined to have extended wide-character functions. */
49 #define _XOPEN_SOURCE_EXTENDED
51 #ifdef HAVE_NCURSESW_NCURSES_H
52 #include <ncursesw/ncurses.h>
54 #ifdef HAVE_NCURSES_NCURSES_H
55 #include <ncurses/ncurses.h>
62 #define __NORETURN __attribute__((__noreturn__))
67 static void __NORETURN die(const char *err, ...);
68 static void warn(const char *msg, ...);
69 static void report(const char *msg, ...);
70 static void set_nonblocking_input(bool loading);
71 static size_t utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve);
72 static int load_refs(void);
74 #define ABS(x) ((x) >= 0 ? (x) : -(x))
75 #define MIN(x, y) ((x) < (y) ? (x) : (y))
77 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
78 #define STRING_SIZE(x) (sizeof(x) - 1)
80 #define SIZEOF_STR 1024 /* Default string size. */
81 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
82 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL. */
83 #define SIZEOF_ARG 32 /* Default argument array size. */
87 #define REVGRAPH_INIT 'I'
88 #define REVGRAPH_MERGE 'M'
89 #define REVGRAPH_BRANCH '+'
90 #define REVGRAPH_COMMIT '*'
91 #define REVGRAPH_BOUND '^'
93 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
95 /* This color name can be used to refer to the default term colors. */
96 #define COLOR_DEFAULT (-1)
98 #define ICONV_NONE ((iconv_t) -1)
100 #define ICONV_CONST /* nothing */
103 /* The format and size of the date column in the main view. */
104 #define DATE_FORMAT "%Y-%m-%d %H:%M"
105 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
107 #define AUTHOR_COLS 20
110 /* The default interval between line numbers. */
111 #define NUMBER_INTERVAL 5
115 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
117 #define NULL_ID "0000000000000000000000000000000000000000"
120 #define GIT_CONFIG "config"
123 /* Some ascii-shorthands fitted into the ncurses namespace. */
125 #define KEY_RETURN '\r'
130 char *name; /* Ref name; tag or head names are shortened. */
131 char id[SIZEOF_REV]; /* Commit SHA1 ID */
132 unsigned int head:1; /* Is it the current HEAD? */
133 unsigned int tag:1; /* Is it a tag? */
134 unsigned int ltag:1; /* If so, is the tag local? */
135 unsigned int remote:1; /* Is it a remote ref? */
136 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
137 unsigned int next:1; /* For ref lists: are there more refs? */
140 static struct ref **get_refs(const char *id);
143 FORMAT_ALL, /* Perform replacement in all arguments. */
144 FORMAT_DASH, /* Perform replacement up until "--". */
145 FORMAT_NONE /* No replacement should be performed. */
148 static bool format_argv(const char *dst[], const char *src[], enum format_flags flags);
157 set_from_int_map(struct int_map *map, size_t map_size,
158 int *value, const char *name, int namelen)
163 for (i = 0; i < map_size; i++)
164 if (namelen == map[i].namelen &&
165 !strncasecmp(name, map[i].name, namelen)) {
166 *value = map[i].value;
180 typedef enum input_status (*input_handler)(void *data, char *buf, int c);
182 static char *prompt_input(const char *prompt, input_handler handler, void *data);
183 static bool prompt_yesno(const char *prompt);
190 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
192 if (srclen > dstlen - 1)
195 strncpy(dst, src, srclen);
199 /* Shorthands for safely copying into a fixed buffer. */
201 #define string_copy(dst, src) \
202 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
204 #define string_ncopy(dst, src, srclen) \
205 string_ncopy_do(dst, sizeof(dst), src, srclen)
207 #define string_copy_rev(dst, src) \
208 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
210 #define string_add(dst, from, src) \
211 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
214 chomp_string(char *name)
218 while (isspace(*name))
221 namelen = strlen(name) - 1;
222 while (namelen > 0 && isspace(name[namelen]))
229 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
232 size_t pos = bufpos ? *bufpos : 0;
235 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
241 return pos >= bufsize ? FALSE : TRUE;
244 #define string_format(buf, fmt, args...) \
245 string_nformat(buf, sizeof(buf), NULL, fmt, args)
247 #define string_format_from(buf, from, fmt, args...) \
248 string_nformat(buf, sizeof(buf), from, fmt, args)
251 string_enum_compare(const char *str1, const char *str2, int len)
255 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
257 /* Diff-Header == DIFF_HEADER */
258 for (i = 0; i < len; i++) {
259 if (toupper(str1[i]) == toupper(str2[i]))
262 if (string_enum_sep(str1[i]) &&
263 string_enum_sep(str2[i]))
266 return str1[i] - str2[i];
272 #define prefixcmp(str1, str2) \
273 strncmp(str1, str2, STRING_SIZE(str2))
276 suffixcmp(const char *str, int slen, const char *suffix)
278 size_t len = slen >= 0 ? slen : strlen(str);
279 size_t suffixlen = strlen(suffix);
281 return suffixlen < len ? strcmp(str + len - suffixlen, suffix) : -1;
286 argv_from_string(const char *argv[SIZEOF_ARG], int *argc, char *cmd)
290 while (*cmd && *argc < SIZEOF_ARG && (valuelen = strcspn(cmd, " \t"))) {
291 bool advance = cmd[valuelen] != 0;
294 argv[(*argc)++] = chomp_string(cmd);
295 cmd += valuelen + advance;
298 if (*argc < SIZEOF_ARG)
300 return *argc < SIZEOF_ARG;
304 argv_from_env(const char **argv, const char *name)
306 char *env = argv ? getenv(name) : NULL;
311 if (env && !argv_from_string(argv, &argc, env))
312 die("Too many arguments in the `%s` environment variable", name);
317 * Executing external commands.
321 IO_FD, /* File descriptor based IO. */
322 IO_BG, /* Execute command in the background. */
323 IO_FG, /* Execute command with same std{in,out,err}. */
324 IO_RD, /* Read only fork+exec IO. */
325 IO_WR, /* Write only fork+exec IO. */
326 IO_AP, /* Append fork+exec output to file. */
330 enum io_type type; /* The requested type of pipe. */
331 const char *dir; /* Directory from which to execute. */
332 pid_t pid; /* Pipe for reading or writing. */
333 int pipe; /* Pipe end for reading or writing. */
334 int error; /* Error status. */
335 const char *argv[SIZEOF_ARG]; /* Shell command arguments. */
336 char *buf; /* Read buffer. */
337 size_t bufalloc; /* Allocated buffer size. */
338 size_t bufsize; /* Buffer content size. */
339 char *bufpos; /* Current buffer position. */
340 unsigned int eof:1; /* Has end of file been reached. */
344 reset_io(struct io *io)
348 io->buf = io->bufpos = NULL;
349 io->bufalloc = io->bufsize = 0;
355 init_io(struct io *io, const char *dir, enum io_type type)
363 init_io_rd(struct io *io, const char *argv[], const char *dir,
364 enum format_flags flags)
366 init_io(io, dir, IO_RD);
367 return format_argv(io->argv, argv, flags);
371 io_open(struct io *io, const char *name)
373 init_io(io, NULL, IO_FD);
374 io->pipe = *name ? open(name, O_RDONLY) : STDIN_FILENO;
375 return io->pipe != -1;
379 kill_io(struct io *io)
381 return io->pid == 0 || kill(io->pid, SIGKILL) != -1;
385 done_io(struct io *io)
396 pid_t waiting = waitpid(pid, &status, 0);
401 report("waitpid failed (%s)", strerror(errno));
405 return waiting == pid &&
406 !WIFSIGNALED(status) &&
408 !WEXITSTATUS(status);
415 start_io(struct io *io)
417 int pipefds[2] = { -1, -1 };
419 if (io->type == IO_FD)
422 if ((io->type == IO_RD || io->type == IO_WR) &&
425 else if (io->type == IO_AP)
426 pipefds[1] = io->pipe;
428 if ((io->pid = fork())) {
429 if (pipefds[!(io->type == IO_WR)] != -1)
430 close(pipefds[!(io->type == IO_WR)]);
432 io->pipe = pipefds[!!(io->type == IO_WR)];
437 if (io->type != IO_FG) {
438 int devnull = open("/dev/null", O_RDWR);
439 int readfd = io->type == IO_WR ? pipefds[0] : devnull;
440 int writefd = (io->type == IO_RD || io->type == IO_AP)
441 ? pipefds[1] : devnull;
443 dup2(readfd, STDIN_FILENO);
444 dup2(writefd, STDOUT_FILENO);
445 dup2(devnull, STDERR_FILENO);
448 if (pipefds[0] != -1)
450 if (pipefds[1] != -1)
454 if (io->dir && *io->dir && chdir(io->dir) == -1)
455 die("Failed to change directory: %s", strerror(errno));
457 execvp(io->argv[0], (char *const*) io->argv);
458 die("Failed to execute program: %s", strerror(errno));
461 if (pipefds[!!(io->type == IO_WR)] != -1)
462 close(pipefds[!!(io->type == IO_WR)]);
467 run_io(struct io *io, const char **argv, const char *dir, enum io_type type)
469 init_io(io, dir, type);
470 if (!format_argv(io->argv, argv, FORMAT_NONE))
476 run_io_do(struct io *io)
478 return start_io(io) && done_io(io);
482 run_io_bg(const char **argv)
486 init_io(&io, NULL, IO_BG);
487 if (!format_argv(io.argv, argv, FORMAT_NONE))
489 return run_io_do(&io);
493 run_io_fg(const char **argv, const char *dir)
497 init_io(&io, dir, IO_FG);
498 if (!format_argv(io.argv, argv, FORMAT_NONE))
500 return run_io_do(&io);
504 run_io_append(const char **argv, enum format_flags flags, int fd)
508 init_io(&io, NULL, IO_AP);
510 if (format_argv(io.argv, argv, flags))
511 return run_io_do(&io);
517 run_io_rd(struct io *io, const char **argv, enum format_flags flags)
519 return init_io_rd(io, argv, NULL, flags) && start_io(io);
523 io_eof(struct io *io)
529 io_error(struct io *io)
535 io_strerror(struct io *io)
537 return strerror(io->error);
541 io_can_read(struct io *io)
543 struct timeval tv = { 0, 500 };
547 FD_SET(io->pipe, &fds);
549 return select(io->pipe + 1, &fds, NULL, NULL, &tv) > 0;
553 io_read(struct io *io, void *buf, size_t bufsize)
556 ssize_t readsize = read(io->pipe, buf, bufsize);
558 if (readsize < 0 && (errno == EAGAIN || errno == EINTR))
560 else if (readsize == -1)
562 else if (readsize == 0)
569 io_get(struct io *io, int c, bool can_read)
575 io->buf = io->bufpos = malloc(BUFSIZ);
578 io->bufalloc = BUFSIZ;
583 if (io->bufsize > 0) {
584 eol = memchr(io->bufpos, c, io->bufsize);
586 char *line = io->bufpos;
589 io->bufpos = eol + 1;
590 io->bufsize -= io->bufpos - line;
597 io->bufpos[io->bufsize] = 0;
607 if (io->bufsize > 0 && io->bufpos > io->buf)
608 memmove(io->buf, io->bufpos, io->bufsize);
610 io->bufpos = io->buf;
611 readsize = io_read(io, io->buf + io->bufsize, io->bufalloc - io->bufsize);
614 io->bufsize += readsize;
619 io_write(struct io *io, const void *buf, size_t bufsize)
623 while (!io_error(io) && written < bufsize) {
626 size = write(io->pipe, buf + written, bufsize - written);
627 if (size < 0 && (errno == EAGAIN || errno == EINTR))
635 return written == bufsize;
639 run_io_buf(const char **argv, char buf[], size_t bufsize)
644 if (!run_io_rd(&io, argv, FORMAT_NONE))
647 io.buf = io.bufpos = buf;
648 io.bufalloc = bufsize;
649 error = !io_get(&io, '\n', TRUE) && io_error(&io);
652 return done_io(&io) || error;
655 static int read_properties(struct io *io, const char *separators, int (*read)(char *, size_t, char *, size_t));
662 /* XXX: Keep the view request first and in sync with views[]. */ \
663 REQ_GROUP("View switching") \
664 REQ_(VIEW_MAIN, "Show main view"), \
665 REQ_(VIEW_DIFF, "Show diff view"), \
666 REQ_(VIEW_LOG, "Show log view"), \
667 REQ_(VIEW_TREE, "Show tree view"), \
668 REQ_(VIEW_BLOB, "Show blob view"), \
669 REQ_(VIEW_BLAME, "Show blame view"), \
670 REQ_(VIEW_HELP, "Show help page"), \
671 REQ_(VIEW_PAGER, "Show pager view"), \
672 REQ_(VIEW_STATUS, "Show status view"), \
673 REQ_(VIEW_STAGE, "Show stage view"), \
675 REQ_GROUP("View manipulation") \
676 REQ_(ENTER, "Enter current line and scroll"), \
677 REQ_(NEXT, "Move to next"), \
678 REQ_(PREVIOUS, "Move to previous"), \
679 REQ_(PARENT, "Move to parent"), \
680 REQ_(VIEW_NEXT, "Move focus to next view"), \
681 REQ_(REFRESH, "Reload and refresh"), \
682 REQ_(MAXIMIZE, "Maximize the current view"), \
683 REQ_(VIEW_CLOSE, "Close the current view"), \
684 REQ_(QUIT, "Close all views and quit"), \
686 REQ_GROUP("View specific requests") \
687 REQ_(STATUS_UPDATE, "Update file status"), \
688 REQ_(STATUS_REVERT, "Revert file changes"), \
689 REQ_(STATUS_MERGE, "Merge file using external tool"), \
690 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
692 REQ_GROUP("Cursor navigation") \
693 REQ_(MOVE_UP, "Move cursor one line up"), \
694 REQ_(MOVE_DOWN, "Move cursor one line down"), \
695 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
696 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
697 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
698 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
700 REQ_GROUP("Scrolling") \
701 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
702 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
703 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
704 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
706 REQ_GROUP("Searching") \
707 REQ_(SEARCH, "Search the view"), \
708 REQ_(SEARCH_BACK, "Search backwards in the view"), \
709 REQ_(FIND_NEXT, "Find next search match"), \
710 REQ_(FIND_PREV, "Find previous search match"), \
712 REQ_GROUP("Option manipulation") \
713 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
714 REQ_(TOGGLE_DATE, "Toggle date display"), \
715 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
716 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
717 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
720 REQ_(PROMPT, "Bring up the prompt"), \
721 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
722 REQ_(SHOW_VERSION, "Show version information"), \
723 REQ_(STOP_LOADING, "Stop all loading views"), \
724 REQ_(EDIT, "Open in editor"), \
725 REQ_(NONE, "Do nothing")
728 /* User action requests. */
730 #define REQ_GROUP(help)
731 #define REQ_(req, help) REQ_##req
733 /* Offset all requests to avoid conflicts with ncurses getch values. */
734 REQ_OFFSET = KEY_MAX + 1,
741 struct request_info {
742 enum request request;
748 static struct request_info req_info[] = {
749 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
750 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
757 get_request(const char *name)
759 int namelen = strlen(name);
762 for (i = 0; i < ARRAY_SIZE(req_info); i++)
763 if (req_info[i].namelen == namelen &&
764 !string_enum_compare(req_info[i].name, name, namelen))
765 return req_info[i].request;
775 static const char usage[] =
776 "tig " TIG_VERSION " (" __DATE__ ")\n"
778 "Usage: tig [options] [revs] [--] [paths]\n"
779 " or: tig show [options] [revs] [--] [paths]\n"
780 " or: tig blame [rev] path\n"
782 " or: tig < [git command output]\n"
785 " -v, --version Show version and exit\n"
786 " -h, --help Show help message and exit";
788 /* Option and state variables. */
789 static bool opt_date = TRUE;
790 static bool opt_author = TRUE;
791 static bool opt_line_number = FALSE;
792 static bool opt_line_graphics = TRUE;
793 static bool opt_rev_graph = FALSE;
794 static bool opt_show_refs = TRUE;
795 static int opt_num_interval = NUMBER_INTERVAL;
796 static int opt_tab_size = TAB_SIZE;
797 static int opt_author_cols = AUTHOR_COLS-1;
798 static char opt_path[SIZEOF_STR] = "";
799 static char opt_file[SIZEOF_STR] = "";
800 static char opt_ref[SIZEOF_REF] = "";
801 static char opt_head[SIZEOF_REF] = "";
802 static char opt_head_rev[SIZEOF_REV] = "";
803 static char opt_remote[SIZEOF_REF] = "";
804 static char opt_encoding[20] = "UTF-8";
805 static bool opt_utf8 = TRUE;
806 static char opt_codeset[20] = "UTF-8";
807 static iconv_t opt_iconv = ICONV_NONE;
808 static char opt_search[SIZEOF_STR] = "";
809 static char opt_cdup[SIZEOF_STR] = "";
810 static char opt_prefix[SIZEOF_STR] = "";
811 static char opt_git_dir[SIZEOF_STR] = "";
812 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
813 static char opt_editor[SIZEOF_STR] = "";
814 static FILE *opt_tty = NULL;
816 #define is_initial_commit() (!*opt_head_rev)
817 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || !strcmp(opt_head_rev, (rev)))
820 parse_options(int argc, const char *argv[], const char ***run_argv)
822 enum request request = REQ_VIEW_MAIN;
823 const char *subcommand;
824 bool seen_dashdash = FALSE;
825 /* XXX: This is vulnerable to the user overriding options
826 * required for the main view parser. */
827 static const char *custom_argv[SIZEOF_ARG] = {
828 "git", "log", "--no-color", "--pretty=raw", "--parents",
833 if (!isatty(STDIN_FILENO))
834 return REQ_VIEW_PAGER;
837 return REQ_VIEW_MAIN;
839 subcommand = argv[1];
840 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
841 if (!strcmp(subcommand, "-S"))
842 warn("`-S' has been deprecated; use `tig status' instead");
844 warn("ignoring arguments after `%s'", subcommand);
845 return REQ_VIEW_STATUS;
847 } else if (!strcmp(subcommand, "blame")) {
848 if (argc <= 2 || argc > 4)
849 die("invalid number of options to blame\n\n%s", usage);
853 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
857 string_ncopy(opt_file, argv[i], strlen(argv[i]));
858 return REQ_VIEW_BLAME;
860 } else if (!strcmp(subcommand, "show")) {
861 request = REQ_VIEW_DIFF;
863 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
864 request = subcommand[0] == 'l' ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
865 warn("`tig %s' has been deprecated", subcommand);
872 custom_argv[1] = subcommand;
876 for (i = 1 + !!subcommand; i < argc; i++) {
877 const char *opt = argv[i];
879 if (seen_dashdash || !strcmp(opt, "--")) {
880 seen_dashdash = TRUE;
882 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
883 printf("tig version %s\n", TIG_VERSION);
886 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
887 printf("%s\n", usage);
891 custom_argv[j++] = opt;
892 if (j >= ARRAY_SIZE(custom_argv))
893 die("command too long");
896 custom_argv[j] = NULL;
897 *run_argv = custom_argv;
904 * Line-oriented content detection.
908 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
909 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
910 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
911 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
912 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
913 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
914 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
915 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
916 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
917 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
918 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
919 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
920 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
921 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
922 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
923 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
924 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
925 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
926 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
927 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
928 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
929 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
930 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
931 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
932 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
933 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
934 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
935 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
936 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
937 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
938 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
939 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
940 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
941 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
942 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
943 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
944 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
945 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
946 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
947 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
948 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
949 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
950 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
951 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
952 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
953 LINE(TREE_PARENT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD), \
954 LINE(TREE_MODE, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
955 LINE(TREE_DIR, "", COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), \
956 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
957 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
958 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
959 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
960 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
961 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
962 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
963 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
966 #define LINE(type, line, fg, bg, attr) \
974 const char *name; /* Option name. */
975 int namelen; /* Size of option name. */
976 const char *line; /* The start of line to match. */
977 int linelen; /* Size of string to match. */
978 int fg, bg, attr; /* Color and text attributes for the lines. */
981 static struct line_info line_info[] = {
982 #define LINE(type, line, fg, bg, attr) \
983 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
988 static enum line_type
989 get_line_type(const char *line)
991 int linelen = strlen(line);
994 for (type = 0; type < ARRAY_SIZE(line_info); type++)
995 /* Case insensitive search matches Signed-off-by lines better. */
996 if (linelen >= line_info[type].linelen &&
997 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
1000 return LINE_DEFAULT;
1004 get_line_attr(enum line_type type)
1006 assert(type < ARRAY_SIZE(line_info));
1007 return COLOR_PAIR(type) | line_info[type].attr;
1010 static struct line_info *
1011 get_line_info(const char *name)
1013 size_t namelen = strlen(name);
1014 enum line_type type;
1016 for (type = 0; type < ARRAY_SIZE(line_info); type++)
1017 if (namelen == line_info[type].namelen &&
1018 !string_enum_compare(line_info[type].name, name, namelen))
1019 return &line_info[type];
1027 int default_bg = line_info[LINE_DEFAULT].bg;
1028 int default_fg = line_info[LINE_DEFAULT].fg;
1029 enum line_type type;
1033 if (assume_default_colors(default_fg, default_bg) == ERR) {
1034 default_bg = COLOR_BLACK;
1035 default_fg = COLOR_WHITE;
1038 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
1039 struct line_info *info = &line_info[type];
1040 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
1041 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
1043 init_pair(type, fg, bg);
1048 enum line_type type;
1051 unsigned int selected:1;
1052 unsigned int dirty:1;
1053 unsigned int cleareol:1;
1055 void *data; /* User data */
1065 enum request request;
1068 static struct keybinding default_keybindings[] = {
1069 /* View switching */
1070 { 'm', REQ_VIEW_MAIN },
1071 { 'd', REQ_VIEW_DIFF },
1072 { 'l', REQ_VIEW_LOG },
1073 { 't', REQ_VIEW_TREE },
1074 { 'f', REQ_VIEW_BLOB },
1075 { 'B', REQ_VIEW_BLAME },
1076 { 'p', REQ_VIEW_PAGER },
1077 { 'h', REQ_VIEW_HELP },
1078 { 'S', REQ_VIEW_STATUS },
1079 { 'c', REQ_VIEW_STAGE },
1081 /* View manipulation */
1082 { 'q', REQ_VIEW_CLOSE },
1083 { KEY_TAB, REQ_VIEW_NEXT },
1084 { KEY_RETURN, REQ_ENTER },
1085 { KEY_UP, REQ_PREVIOUS },
1086 { KEY_DOWN, REQ_NEXT },
1087 { 'R', REQ_REFRESH },
1088 { KEY_F(5), REQ_REFRESH },
1089 { 'O', REQ_MAXIMIZE },
1091 /* Cursor navigation */
1092 { 'k', REQ_MOVE_UP },
1093 { 'j', REQ_MOVE_DOWN },
1094 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1095 { KEY_END, REQ_MOVE_LAST_LINE },
1096 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1097 { ' ', REQ_MOVE_PAGE_DOWN },
1098 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1099 { 'b', REQ_MOVE_PAGE_UP },
1100 { '-', REQ_MOVE_PAGE_UP },
1103 { KEY_IC, REQ_SCROLL_LINE_UP },
1104 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1105 { 'w', REQ_SCROLL_PAGE_UP },
1106 { 's', REQ_SCROLL_PAGE_DOWN },
1109 { '/', REQ_SEARCH },
1110 { '?', REQ_SEARCH_BACK },
1111 { 'n', REQ_FIND_NEXT },
1112 { 'N', REQ_FIND_PREV },
1116 { 'z', REQ_STOP_LOADING },
1117 { 'v', REQ_SHOW_VERSION },
1118 { 'r', REQ_SCREEN_REDRAW },
1119 { '.', REQ_TOGGLE_LINENO },
1120 { 'D', REQ_TOGGLE_DATE },
1121 { 'A', REQ_TOGGLE_AUTHOR },
1122 { 'g', REQ_TOGGLE_REV_GRAPH },
1123 { 'F', REQ_TOGGLE_REFS },
1124 { ':', REQ_PROMPT },
1125 { 'u', REQ_STATUS_UPDATE },
1126 { '!', REQ_STATUS_REVERT },
1127 { 'M', REQ_STATUS_MERGE },
1128 { '@', REQ_STAGE_NEXT },
1129 { ',', REQ_PARENT },
1133 #define KEYMAP_INFO \
1147 #define KEYMAP_(name) KEYMAP_##name
1152 static struct int_map keymap_table[] = {
1153 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
1158 #define set_keymap(map, name) \
1159 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
1161 struct keybinding_table {
1162 struct keybinding *data;
1166 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1169 add_keybinding(enum keymap keymap, enum request request, int key)
1171 struct keybinding_table *table = &keybindings[keymap];
1173 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1175 die("Failed to allocate keybinding");
1176 table->data[table->size].alias = key;
1177 table->data[table->size++].request = request;
1180 /* Looks for a key binding first in the given map, then in the generic map, and
1181 * lastly in the default keybindings. */
1183 get_keybinding(enum keymap keymap, int key)
1187 for (i = 0; i < keybindings[keymap].size; i++)
1188 if (keybindings[keymap].data[i].alias == key)
1189 return keybindings[keymap].data[i].request;
1191 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1192 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1193 return keybindings[KEYMAP_GENERIC].data[i].request;
1195 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1196 if (default_keybindings[i].alias == key)
1197 return default_keybindings[i].request;
1199 return (enum request) key;
1208 static struct key key_table[] = {
1209 { "Enter", KEY_RETURN },
1211 { "Backspace", KEY_BACKSPACE },
1213 { "Escape", KEY_ESC },
1214 { "Left", KEY_LEFT },
1215 { "Right", KEY_RIGHT },
1217 { "Down", KEY_DOWN },
1218 { "Insert", KEY_IC },
1219 { "Delete", KEY_DC },
1221 { "Home", KEY_HOME },
1223 { "PageUp", KEY_PPAGE },
1224 { "PageDown", KEY_NPAGE },
1234 { "F10", KEY_F(10) },
1235 { "F11", KEY_F(11) },
1236 { "F12", KEY_F(12) },
1240 get_key_value(const char *name)
1244 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1245 if (!strcasecmp(key_table[i].name, name))
1246 return key_table[i].value;
1248 if (strlen(name) == 1 && isprint(*name))
1255 get_key_name(int key_value)
1257 static char key_char[] = "'X'";
1258 const char *seq = NULL;
1261 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1262 if (key_table[key].value == key_value)
1263 seq = key_table[key].name;
1267 isprint(key_value)) {
1268 key_char[1] = (char) key_value;
1272 return seq ? seq : "(no key)";
1276 get_key(enum request request)
1278 static char buf[BUFSIZ];
1285 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1286 struct keybinding *keybinding = &default_keybindings[i];
1288 if (keybinding->request != request)
1291 if (!string_format_from(buf, &pos, "%s%s", sep,
1292 get_key_name(keybinding->alias)))
1293 return "Too many keybindings!";
1300 struct run_request {
1303 const char *argv[SIZEOF_ARG];
1306 static struct run_request *run_request;
1307 static size_t run_requests;
1310 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1312 struct run_request *req;
1314 if (argc >= ARRAY_SIZE(req->argv) - 1)
1317 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1322 req = &run_request[run_requests];
1323 req->keymap = keymap;
1325 req->argv[0] = NULL;
1327 if (!format_argv(req->argv, argv, FORMAT_NONE))
1330 return REQ_NONE + ++run_requests;
1333 static struct run_request *
1334 get_run_request(enum request request)
1336 if (request <= REQ_NONE)
1338 return &run_request[request - REQ_NONE - 1];
1342 add_builtin_run_requests(void)
1344 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1345 const char *gc[] = { "git", "gc", NULL };
1352 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1353 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1357 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1360 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1361 if (req != REQ_NONE)
1362 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1367 * User config file handling.
1370 static struct int_map color_map[] = {
1371 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1383 #define set_color(color, name) \
1384 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1386 static struct int_map attr_map[] = {
1387 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1394 ATTR_MAP(UNDERLINE),
1397 #define set_attribute(attr, name) \
1398 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1400 static int config_lineno;
1401 static bool config_errors;
1402 static const char *config_msg;
1404 /* Wants: object fgcolor bgcolor [attr] */
1406 option_color_command(int argc, const char *argv[])
1408 struct line_info *info;
1410 if (argc != 3 && argc != 4) {
1411 config_msg = "Wrong number of arguments given to color command";
1415 info = get_line_info(argv[0]);
1417 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1418 info = get_line_info("delimiter");
1420 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1421 info = get_line_info("date");
1424 config_msg = "Unknown color name";
1429 if (set_color(&info->fg, argv[1]) == ERR ||
1430 set_color(&info->bg, argv[2]) == ERR) {
1431 config_msg = "Unknown color";
1435 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1436 config_msg = "Unknown attribute";
1443 static bool parse_bool(const char *s)
1445 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1446 !strcmp(s, "yes")) ? TRUE : FALSE;
1450 parse_int(const char *s, int default_value, int min, int max)
1452 int value = atoi(s);
1454 return (value < min || value > max) ? default_value : value;
1457 /* Wants: name = value */
1459 option_set_command(int argc, const char *argv[])
1462 config_msg = "Wrong number of arguments given to set command";
1466 if (strcmp(argv[1], "=")) {
1467 config_msg = "No value assigned";
1471 if (!strcmp(argv[0], "show-author")) {
1472 opt_author = parse_bool(argv[2]);
1476 if (!strcmp(argv[0], "show-date")) {
1477 opt_date = parse_bool(argv[2]);
1481 if (!strcmp(argv[0], "show-rev-graph")) {
1482 opt_rev_graph = parse_bool(argv[2]);
1486 if (!strcmp(argv[0], "show-refs")) {
1487 opt_show_refs = parse_bool(argv[2]);
1491 if (!strcmp(argv[0], "show-line-numbers")) {
1492 opt_line_number = parse_bool(argv[2]);
1496 if (!strcmp(argv[0], "line-graphics")) {
1497 opt_line_graphics = parse_bool(argv[2]);
1501 if (!strcmp(argv[0], "line-number-interval")) {
1502 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1506 if (!strcmp(argv[0], "author-width")) {
1507 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1511 if (!strcmp(argv[0], "tab-size")) {
1512 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1516 if (!strcmp(argv[0], "commit-encoding")) {
1517 const char *arg = argv[2];
1518 int arglen = strlen(arg);
1523 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1524 config_msg = "Unmatched quotation";
1527 arg += 1; arglen -= 2;
1529 string_ncopy(opt_encoding, arg, strlen(arg));
1534 config_msg = "Unknown variable name";
1538 /* Wants: mode request key */
1540 option_bind_command(int argc, const char *argv[])
1542 enum request request;
1547 config_msg = "Wrong number of arguments given to bind command";
1551 if (set_keymap(&keymap, argv[0]) == ERR) {
1552 config_msg = "Unknown key map";
1556 key = get_key_value(argv[1]);
1558 config_msg = "Unknown key";
1562 request = get_request(argv[2]);
1563 if (request == REQ_NONE) {
1566 enum request request;
1568 { "cherry-pick", REQ_NONE },
1569 { "screen-resize", REQ_NONE },
1570 { "tree-parent", REQ_PARENT },
1572 size_t namelen = strlen(argv[2]);
1575 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1576 if (namelen != strlen(obsolete[i].name) ||
1577 string_enum_compare(obsolete[i].name, argv[2], namelen))
1579 if (obsolete[i].request != REQ_NONE)
1580 add_keybinding(keymap, obsolete[i].request, key);
1581 config_msg = "Obsolete request name";
1585 if (request == REQ_NONE && *argv[2]++ == '!')
1586 request = add_run_request(keymap, key, argc - 2, argv + 2);
1587 if (request == REQ_NONE) {
1588 config_msg = "Unknown request name";
1592 add_keybinding(keymap, request, key);
1598 set_option(const char *opt, char *value)
1600 const char *argv[SIZEOF_ARG];
1603 if (!argv_from_string(argv, &argc, value)) {
1604 config_msg = "Too many option arguments";
1608 if (!strcmp(opt, "color"))
1609 return option_color_command(argc, argv);
1611 if (!strcmp(opt, "set"))
1612 return option_set_command(argc, argv);
1614 if (!strcmp(opt, "bind"))
1615 return option_bind_command(argc, argv);
1617 config_msg = "Unknown option command";
1622 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1627 config_msg = "Internal error";
1629 /* Check for comment markers, since read_properties() will
1630 * only ensure opt and value are split at first " \t". */
1631 optlen = strcspn(opt, "#");
1635 if (opt[optlen] != 0) {
1636 config_msg = "No option value";
1640 /* Look for comment endings in the value. */
1641 size_t len = strcspn(value, "#");
1643 if (len < valuelen) {
1645 value[valuelen] = 0;
1648 status = set_option(opt, value);
1651 if (status == ERR) {
1652 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1653 config_lineno, (int) optlen, opt, config_msg);
1654 config_errors = TRUE;
1657 /* Always keep going if errors are encountered. */
1662 load_option_file(const char *path)
1666 /* It's ok that the file doesn't exist. */
1667 if (!io_open(&io, path))
1671 config_errors = FALSE;
1673 if (read_properties(&io, " \t", read_option) == ERR ||
1674 config_errors == TRUE)
1675 fprintf(stderr, "Errors while loading %s.\n", path);
1681 const char *home = getenv("HOME");
1682 const char *tigrc_user = getenv("TIGRC_USER");
1683 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1684 char buf[SIZEOF_STR];
1686 add_builtin_run_requests();
1688 if (!tigrc_system) {
1689 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1693 load_option_file(tigrc_system);
1696 if (!home || !string_format(buf, "%s/.tigrc", home))
1700 load_option_file(tigrc_user);
1713 /* The display array of active views and the index of the current view. */
1714 static struct view *display[2];
1715 static unsigned int current_view;
1717 /* Reading from the prompt? */
1718 static bool input_mode = FALSE;
1720 #define foreach_displayed_view(view, i) \
1721 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1723 #define displayed_views() (display[1] != NULL ? 2 : 1)
1725 /* Current head and commit ID */
1726 static char ref_blob[SIZEOF_REF] = "";
1727 static char ref_commit[SIZEOF_REF] = "HEAD";
1728 static char ref_head[SIZEOF_REF] = "HEAD";
1731 const char *name; /* View name */
1732 const char *cmd_env; /* Command line set via environment */
1733 const char *id; /* Points to either of ref_{head,commit,blob} */
1735 struct view_ops *ops; /* View operations */
1737 enum keymap keymap; /* What keymap does this view have */
1738 bool git_dir; /* Whether the view requires a git directory. */
1740 char ref[SIZEOF_REF]; /* Hovered commit reference */
1741 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1743 int height, width; /* The width and height of the main window */
1744 WINDOW *win; /* The main window */
1745 WINDOW *title; /* The title window living below the main window */
1748 unsigned long offset; /* Offset of the window top */
1749 unsigned long lineno; /* Current line number */
1750 unsigned long p_offset; /* Previous offset of the window top */
1751 unsigned long p_lineno; /* Previous current line number */
1752 bool p_restore; /* Should the previous position be restored. */
1755 char grep[SIZEOF_STR]; /* Search string */
1756 regex_t *regex; /* Pre-compiled regex */
1758 /* If non-NULL, points to the view that opened this view. If this view
1759 * is closed tig will switch back to the parent view. */
1760 struct view *parent;
1763 size_t lines; /* Total number of lines */
1764 struct line *line; /* Line index */
1765 size_t line_alloc; /* Total number of allocated lines */
1766 unsigned int digits; /* Number of digits in the lines member. */
1769 struct line *curline; /* Line currently being drawn. */
1770 enum line_type curtype; /* Attribute currently used for drawing. */
1771 unsigned long col; /* Column when drawing. */
1781 /* What type of content being displayed. Used in the title bar. */
1783 /* Default command arguments. */
1785 /* Open and reads in all view content. */
1786 bool (*open)(struct view *view);
1787 /* Read one line; updates view->line. */
1788 bool (*read)(struct view *view, char *data);
1789 /* Draw one line; @lineno must be < view->height. */
1790 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1791 /* Depending on view handle a special requests. */
1792 enum request (*request)(struct view *view, enum request request, struct line *line);
1793 /* Search for regex in a line. */
1794 bool (*grep)(struct view *view, struct line *line);
1796 void (*select)(struct view *view, struct line *line);
1799 static struct view_ops blame_ops;
1800 static struct view_ops blob_ops;
1801 static struct view_ops diff_ops;
1802 static struct view_ops help_ops;
1803 static struct view_ops log_ops;
1804 static struct view_ops main_ops;
1805 static struct view_ops pager_ops;
1806 static struct view_ops stage_ops;
1807 static struct view_ops status_ops;
1808 static struct view_ops tree_ops;
1810 #define VIEW_STR(name, env, ref, ops, map, git) \
1811 { name, #env, ref, ops, map, git }
1813 #define VIEW_(id, name, ops, git, ref) \
1814 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1817 static struct view views[] = {
1818 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1819 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1820 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1821 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1822 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1823 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1824 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1825 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1826 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1827 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1830 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1831 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1833 #define foreach_view(view, i) \
1834 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1836 #define view_is_displayed(view) \
1837 (view == display[0] || view == display[1])
1844 static int line_graphics[] = {
1845 /* LINE_GRAPHIC_VLINE: */ '|'
1849 set_view_attr(struct view *view, enum line_type type)
1851 if (!view->curline->selected && view->curtype != type) {
1852 wattrset(view->win, get_line_attr(type));
1853 wchgat(view->win, -1, 0, type, NULL);
1854 view->curtype = type;
1859 draw_chars(struct view *view, enum line_type type, const char *string,
1860 int max_len, bool use_tilde)
1864 int trimmed = FALSE;
1870 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1872 col = len = strlen(string);
1873 if (len > max_len) {
1877 col = len = max_len;
1882 set_view_attr(view, type);
1883 waddnstr(view->win, string, len);
1884 if (trimmed && use_tilde) {
1885 set_view_attr(view, LINE_DELIMITER);
1886 waddch(view->win, '~');
1894 draw_space(struct view *view, enum line_type type, int max, int spaces)
1896 static char space[] = " ";
1899 spaces = MIN(max, spaces);
1901 while (spaces > 0) {
1902 int len = MIN(spaces, sizeof(space) - 1);
1904 col += draw_chars(view, type, space, spaces, FALSE);
1912 draw_lineno(struct view *view, unsigned int lineno)
1915 int digits3 = view->digits < 3 ? 3 : view->digits;
1916 int max_number = MIN(digits3, STRING_SIZE(number));
1917 int max = view->width - view->col;
1920 if (max < max_number)
1923 lineno += view->offset + 1;
1924 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1925 static char fmt[] = "%1ld";
1927 if (view->digits <= 9)
1928 fmt[1] = '0' + digits3;
1930 if (!string_format(number, fmt, lineno))
1932 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1934 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1938 set_view_attr(view, LINE_DEFAULT);
1939 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1944 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1947 return view->width - view->col <= 0;
1951 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1953 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1954 return view->width - view->col <= 0;
1958 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1960 int max = view->width - view->col;
1966 set_view_attr(view, type);
1967 /* Using waddch() instead of waddnstr() ensures that
1968 * they'll be rendered correctly for the cursor line. */
1969 for (i = 0; i < size; i++)
1970 waddch(view->win, graphic[i]);
1974 waddch(view->win, ' ');
1978 return view->width - view->col <= 0;
1982 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1984 int max = MIN(view->width - view->col, len);
1988 col = draw_chars(view, type, text, max - 1, trim);
1990 col = draw_space(view, type, max - 1, max - 1);
1992 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1993 return view->width - view->col <= 0;
1997 draw_date(struct view *view, struct tm *time)
1999 char buf[DATE_COLS];
2004 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
2005 date = timelen ? buf : NULL;
2007 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
2011 draw_view_line(struct view *view, unsigned int lineno)
2014 bool selected = (view->offset + lineno == view->lineno);
2017 assert(view_is_displayed(view));
2019 if (view->offset + lineno >= view->lines)
2022 line = &view->line[view->offset + lineno];
2024 wmove(view->win, lineno, 0);
2026 wclrtoeol(view->win);
2028 view->curline = line;
2029 view->curtype = LINE_NONE;
2030 line->selected = FALSE;
2031 line->dirty = line->cleareol = 0;
2034 set_view_attr(view, LINE_CURSOR);
2035 line->selected = TRUE;
2036 view->ops->select(view, line);
2039 scrollok(view->win, FALSE);
2040 draw_ok = view->ops->draw(view, line, lineno);
2041 scrollok(view->win, TRUE);
2047 redraw_view_dirty(struct view *view)
2052 for (lineno = 0; lineno < view->height; lineno++) {
2053 if (view->offset + lineno >= view->lines)
2055 if (!view->line[view->offset + lineno].dirty)
2058 if (!draw_view_line(view, lineno))
2064 redrawwin(view->win);
2066 wnoutrefresh(view->win);
2068 wrefresh(view->win);
2072 redraw_view_from(struct view *view, int lineno)
2074 assert(0 <= lineno && lineno < view->height);
2076 for (; lineno < view->height; lineno++) {
2077 if (!draw_view_line(view, lineno))
2081 redrawwin(view->win);
2083 wnoutrefresh(view->win);
2085 wrefresh(view->win);
2089 redraw_view(struct view *view)
2092 redraw_view_from(view, 0);
2097 update_view_title(struct view *view)
2099 char buf[SIZEOF_STR];
2100 char state[SIZEOF_STR];
2101 size_t bufpos = 0, statelen = 0;
2103 assert(view_is_displayed(view));
2105 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2106 unsigned int view_lines = view->offset + view->height;
2107 unsigned int lines = view->lines
2108 ? MIN(view_lines, view->lines) * 100 / view->lines
2111 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2120 time_t secs = time(NULL) - view->start_time;
2122 /* Three git seconds are a long time ... */
2124 string_format_from(state, &statelen, " loading %lds", secs);
2127 string_format_from(buf, &bufpos, "[%s]", view->name);
2128 if (*view->ref && bufpos < view->width) {
2129 size_t refsize = strlen(view->ref);
2130 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2132 if (minsize < view->width)
2133 refsize = view->width - minsize + 7;
2134 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2137 if (statelen && bufpos < view->width) {
2138 string_format_from(buf, &bufpos, "%s", state);
2141 if (view == display[current_view])
2142 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2144 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2146 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2147 wclrtoeol(view->title);
2148 wmove(view->title, 0, view->width - 1);
2151 wnoutrefresh(view->title);
2153 wrefresh(view->title);
2157 resize_display(void)
2160 struct view *base = display[0];
2161 struct view *view = display[1] ? display[1] : display[0];
2163 /* Setup window dimensions */
2165 getmaxyx(stdscr, base->height, base->width);
2167 /* Make room for the status window. */
2171 /* Horizontal split. */
2172 view->width = base->width;
2173 view->height = SCALE_SPLIT_VIEW(base->height);
2174 base->height -= view->height;
2176 /* Make room for the title bar. */
2180 /* Make room for the title bar. */
2185 foreach_displayed_view (view, i) {
2187 view->win = newwin(view->height, 0, offset, 0);
2189 die("Failed to create %s view", view->name);
2191 scrollok(view->win, TRUE);
2193 view->title = newwin(1, 0, offset + view->height, 0);
2195 die("Failed to create title window");
2198 wresize(view->win, view->height, view->width);
2199 mvwin(view->win, offset, 0);
2200 mvwin(view->title, offset + view->height, 0);
2203 offset += view->height + 1;
2208 redraw_display(bool clear)
2213 foreach_displayed_view (view, i) {
2217 update_view_title(view);
2222 update_display_cursor(struct view *view)
2224 /* Move the cursor to the right-most column of the cursor line.
2226 * XXX: This could turn out to be a bit expensive, but it ensures that
2227 * the cursor does not jump around. */
2229 wmove(view->win, view->lineno - view->offset, view->width - 1);
2230 wrefresh(view->win);
2235 toggle_view_option(bool *option, const char *help)
2238 redraw_display(FALSE);
2239 report("%sabling %s", *option ? "En" : "Dis", help);
2246 /* Scrolling backend */
2248 do_scroll_view(struct view *view, int lines)
2250 bool redraw_current_line = FALSE;
2252 /* The rendering expects the new offset. */
2253 view->offset += lines;
2255 assert(0 <= view->offset && view->offset < view->lines);
2258 /* Move current line into the view. */
2259 if (view->lineno < view->offset) {
2260 view->lineno = view->offset;
2261 redraw_current_line = TRUE;
2262 } else if (view->lineno >= view->offset + view->height) {
2263 view->lineno = view->offset + view->height - 1;
2264 redraw_current_line = TRUE;
2267 assert(view->offset <= view->lineno && view->lineno < view->lines);
2269 /* Redraw the whole screen if scrolling is pointless. */
2270 if (view->height < ABS(lines)) {
2274 int line = lines > 0 ? view->height - lines : 0;
2275 int end = line + ABS(lines);
2277 wscrl(view->win, lines);
2279 for (; line < end; line++) {
2280 if (!draw_view_line(view, line))
2284 if (redraw_current_line)
2285 draw_view_line(view, view->lineno - view->offset);
2288 redrawwin(view->win);
2289 wrefresh(view->win);
2293 /* Scroll frontend */
2295 scroll_view(struct view *view, enum request request)
2299 assert(view_is_displayed(view));
2302 case REQ_SCROLL_PAGE_DOWN:
2303 lines = view->height;
2304 case REQ_SCROLL_LINE_DOWN:
2305 if (view->offset + lines > view->lines)
2306 lines = view->lines - view->offset;
2308 if (lines == 0 || view->offset + view->height >= view->lines) {
2309 report("Cannot scroll beyond the last line");
2314 case REQ_SCROLL_PAGE_UP:
2315 lines = view->height;
2316 case REQ_SCROLL_LINE_UP:
2317 if (lines > view->offset)
2318 lines = view->offset;
2321 report("Cannot scroll beyond the first line");
2329 die("request %d not handled in switch", request);
2332 do_scroll_view(view, lines);
2337 move_view(struct view *view, enum request request)
2339 int scroll_steps = 0;
2343 case REQ_MOVE_FIRST_LINE:
2344 steps = -view->lineno;
2347 case REQ_MOVE_LAST_LINE:
2348 steps = view->lines - view->lineno - 1;
2351 case REQ_MOVE_PAGE_UP:
2352 steps = view->height > view->lineno
2353 ? -view->lineno : -view->height;
2356 case REQ_MOVE_PAGE_DOWN:
2357 steps = view->lineno + view->height >= view->lines
2358 ? view->lines - view->lineno - 1 : view->height;
2370 die("request %d not handled in switch", request);
2373 if (steps <= 0 && view->lineno == 0) {
2374 report("Cannot move beyond the first line");
2377 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2378 report("Cannot move beyond the last line");
2382 /* Move the current line */
2383 view->lineno += steps;
2384 assert(0 <= view->lineno && view->lineno < view->lines);
2386 /* Check whether the view needs to be scrolled */
2387 if (view->lineno < view->offset ||
2388 view->lineno >= view->offset + view->height) {
2389 scroll_steps = steps;
2390 if (steps < 0 && -steps > view->offset) {
2391 scroll_steps = -view->offset;
2393 } else if (steps > 0) {
2394 if (view->lineno == view->lines - 1 &&
2395 view->lines > view->height) {
2396 scroll_steps = view->lines - view->offset - 1;
2397 if (scroll_steps >= view->height)
2398 scroll_steps -= view->height - 1;
2403 if (!view_is_displayed(view)) {
2404 view->offset += scroll_steps;
2405 assert(0 <= view->offset && view->offset < view->lines);
2406 view->ops->select(view, &view->line[view->lineno]);
2410 /* Repaint the old "current" line if we be scrolling */
2411 if (ABS(steps) < view->height)
2412 draw_view_line(view, view->lineno - steps - view->offset);
2415 do_scroll_view(view, scroll_steps);
2419 /* Draw the current line */
2420 draw_view_line(view, view->lineno - view->offset);
2422 redrawwin(view->win);
2423 wrefresh(view->win);
2432 static void search_view(struct view *view, enum request request);
2435 select_view_line(struct view *view, unsigned long lineno)
2437 if (lineno - view->offset >= view->height) {
2438 view->offset = lineno;
2439 view->lineno = lineno;
2440 if (view_is_displayed(view))
2444 unsigned long old_lineno = view->lineno - view->offset;
2446 view->lineno = lineno;
2447 if (view_is_displayed(view)) {
2448 draw_view_line(view, old_lineno);
2449 draw_view_line(view, view->lineno - view->offset);
2450 redrawwin(view->win);
2451 wrefresh(view->win);
2453 view->ops->select(view, &view->line[view->lineno]);
2459 find_next(struct view *view, enum request request)
2461 unsigned long lineno = view->lineno;
2466 report("No previous search");
2468 search_view(view, request);
2478 case REQ_SEARCH_BACK:
2487 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2488 lineno += direction;
2490 /* Note, lineno is unsigned long so will wrap around in which case it
2491 * will become bigger than view->lines. */
2492 for (; lineno < view->lines; lineno += direction) {
2493 if (view->ops->grep(view, &view->line[lineno])) {
2494 select_view_line(view, lineno);
2495 report("Line %ld matches '%s'", lineno + 1, view->grep);
2500 report("No match found for '%s'", view->grep);
2504 search_view(struct view *view, enum request request)
2509 regfree(view->regex);
2512 view->regex = calloc(1, sizeof(*view->regex));
2517 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2518 if (regex_err != 0) {
2519 char buf[SIZEOF_STR] = "unknown error";
2521 regerror(regex_err, view->regex, buf, sizeof(buf));
2522 report("Search failed: %s", buf);
2526 string_copy(view->grep, opt_search);
2528 find_next(view, request);
2532 * Incremental updating
2536 reset_view(struct view *view)
2540 for (i = 0; i < view->lines; i++)
2541 free(view->line[i].data);
2544 view->p_offset = view->offset;
2545 view->p_lineno = view->lineno;
2551 view->line_alloc = 0;
2553 view->update_secs = 0;
2557 free_argv(const char *argv[])
2561 for (argc = 0; argv[argc]; argc++)
2562 free((void *) argv[argc]);
2566 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2568 char buf[SIZEOF_STR];
2570 bool noreplace = flags == FORMAT_NONE;
2572 free_argv(dst_argv);
2574 for (argc = 0; src_argv[argc]; argc++) {
2575 const char *arg = src_argv[argc];
2579 char *next = strstr(arg, "%(");
2580 int len = next - arg;
2583 if (!next || noreplace) {
2584 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2589 } else if (!prefixcmp(next, "%(directory)")) {
2592 } else if (!prefixcmp(next, "%(file)")) {
2595 } else if (!prefixcmp(next, "%(ref)")) {
2596 value = *opt_ref ? opt_ref : "HEAD";
2598 } else if (!prefixcmp(next, "%(head)")) {
2601 } else if (!prefixcmp(next, "%(commit)")) {
2604 } else if (!prefixcmp(next, "%(blob)")) {
2608 report("Unknown replacement: `%s`", next);
2612 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2615 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2618 dst_argv[argc] = strdup(buf);
2619 if (!dst_argv[argc])
2623 dst_argv[argc] = NULL;
2625 return src_argv[argc] == NULL;
2629 restore_view_position(struct view *view)
2631 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2634 /* Changing the view position cancels the restoring. */
2635 /* FIXME: Changing back to the first line is not detected. */
2636 if (view->offset != 0 || view->lineno != 0) {
2637 view->p_restore = FALSE;
2641 if (view->p_lineno >= view->lines) {
2642 view->p_lineno = view->lines > 0 ? view->lines - 1 : 0;
2643 if (view->p_offset >= view->p_lineno) {
2644 unsigned long half = view->height / 2;
2646 if (view->p_lineno > half)
2647 view->p_offset = view->p_lineno - half;
2653 if (view_is_displayed(view) &&
2654 view->offset != view->p_offset &&
2655 view->lineno != view->p_lineno)
2658 view->offset = view->p_offset;
2659 view->lineno = view->p_lineno;
2660 view->p_restore = FALSE;
2666 end_update(struct view *view, bool force)
2670 while (!view->ops->read(view, NULL))
2673 set_nonblocking_input(FALSE);
2675 kill_io(view->pipe);
2676 done_io(view->pipe);
2681 setup_update(struct view *view, const char *vid)
2683 set_nonblocking_input(TRUE);
2685 string_copy_rev(view->vid, vid);
2686 view->pipe = &view->io;
2687 view->start_time = time(NULL);
2691 prepare_update(struct view *view, const char *argv[], const char *dir,
2692 enum format_flags flags)
2695 end_update(view, TRUE);
2696 return init_io_rd(&view->io, argv, dir, flags);
2700 prepare_update_file(struct view *view, const char *name)
2703 end_update(view, TRUE);
2704 return io_open(&view->io, name);
2708 begin_update(struct view *view, bool refresh)
2711 end_update(view, TRUE);
2714 if (!start_io(&view->io))
2718 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2721 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2724 /* Put the current ref_* value to the view title ref
2725 * member. This is needed by the blob view. Most other
2726 * views sets it automatically after loading because the
2727 * first line is a commit line. */
2728 string_copy_rev(view->ref, view->id);
2731 setup_update(view, view->id);
2736 #define ITEM_CHUNK_SIZE 256
2738 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2740 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2741 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2743 if (mem == NULL || num_chunks != num_chunks_new) {
2744 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2745 mem = realloc(mem, *size * item_size);
2751 static struct line *
2752 realloc_lines(struct view *view, size_t line_size)
2754 size_t alloc = view->line_alloc;
2755 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2756 sizeof(*view->line));
2762 view->line_alloc = alloc;
2767 update_view(struct view *view)
2769 char out_buffer[BUFSIZ * 2];
2771 /* Clear the view and redraw everything since the tree sorting
2772 * might have rearranged things. */
2773 bool redraw = view->lines == 0;
2774 bool can_read = TRUE;
2779 if (!io_can_read(view->pipe)) {
2780 if (view->lines == 0) {
2781 time_t secs = time(NULL) - view->start_time;
2783 if (secs > view->update_secs) {
2784 if (view->update_secs == 0)
2786 update_view_title(view);
2787 view->update_secs = secs;
2793 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2794 if (opt_iconv != ICONV_NONE) {
2795 ICONV_CONST char *inbuf = line;
2796 size_t inlen = strlen(line) + 1;
2798 char *outbuf = out_buffer;
2799 size_t outlen = sizeof(out_buffer);
2803 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2804 if (ret != (size_t) -1)
2808 if (!view->ops->read(view, line)) {
2809 report("Allocation failure");
2810 end_update(view, TRUE);
2816 unsigned long lines = view->lines;
2819 for (digits = 0; lines; digits++)
2822 /* Keep the displayed view in sync with line number scaling. */
2823 if (digits != view->digits) {
2824 view->digits = digits;
2825 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2830 if (io_error(view->pipe)) {
2831 report("Failed to read: %s", io_strerror(view->pipe));
2832 end_update(view, TRUE);
2834 } else if (io_eof(view->pipe)) {
2836 end_update(view, FALSE);
2839 if (restore_view_position(view))
2842 if (!view_is_displayed(view))
2846 redraw_view_from(view, 0);
2848 redraw_view_dirty(view);
2850 /* Update the title _after_ the redraw so that if the redraw picks up a
2851 * commit reference in view->ref it'll be available here. */
2852 update_view_title(view);
2856 static struct line *
2857 add_line_data(struct view *view, void *data, enum line_type type)
2861 if (!realloc_lines(view, view->lines + 1))
2864 line = &view->line[view->lines++];
2865 memset(line, 0, sizeof(*line));
2873 static struct line *
2874 add_line_text(struct view *view, const char *text, enum line_type type)
2876 char *data = text ? strdup(text) : NULL;
2878 return data ? add_line_data(view, data, type) : NULL;
2881 static struct line *
2882 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2884 char buf[SIZEOF_STR];
2887 va_start(args, fmt);
2888 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2892 return buf[0] ? add_line_text(view, buf, type) : NULL;
2900 OPEN_DEFAULT = 0, /* Use default view switching. */
2901 OPEN_SPLIT = 1, /* Split current view. */
2902 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2903 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2904 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2905 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2906 OPEN_PREPARED = 32, /* Open already prepared command. */
2910 open_view(struct view *prev, enum request request, enum open_flags flags)
2912 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2913 bool split = !!(flags & OPEN_SPLIT);
2914 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2915 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2916 struct view *view = VIEW(request);
2917 int nviews = displayed_views();
2918 struct view *base_view = display[0];
2920 if (view == prev && nviews == 1 && !reload) {
2921 report("Already in %s view", view->name);
2925 if (view->git_dir && !opt_git_dir[0]) {
2926 report("The %s view is disabled in pager view", view->name);
2934 } else if (!nomaximize) {
2935 /* Maximize the current view. */
2936 memset(display, 0, sizeof(display));
2938 display[current_view] = view;
2941 /* Resize the view when switching between split- and full-screen,
2942 * or when switching between two different full-screen views. */
2943 if (nviews != displayed_views() ||
2944 (nviews == 1 && base_view != display[0]))
2947 if (view->ops->open) {
2949 end_update(view, TRUE);
2950 if (!view->ops->open(view)) {
2951 report("Failed to load %s view", view->name);
2954 restore_view_position(view);
2956 } else if ((reload || strcmp(view->vid, view->id)) &&
2957 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2958 report("Failed to load %s view", view->name);
2962 if (split && prev->lineno - prev->offset >= prev->height) {
2963 /* Take the title line into account. */
2964 int lines = prev->lineno - prev->offset - prev->height + 1;
2966 /* Scroll the view that was split if the current line is
2967 * outside the new limited view. */
2968 do_scroll_view(prev, lines);
2971 if (prev && view != prev) {
2972 if (split && !backgrounded) {
2973 /* "Blur" the previous view. */
2974 update_view_title(prev);
2977 view->parent = prev;
2980 if (view->pipe && view->lines == 0) {
2981 /* Clear the old view and let the incremental updating refill
2984 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
2986 } else if (view_is_displayed(view)) {
2991 /* If the view is backgrounded the above calls to report()
2992 * won't redraw the view title. */
2994 update_view_title(view);
2998 open_external_viewer(const char *argv[], const char *dir)
3000 def_prog_mode(); /* save current tty modes */
3001 endwin(); /* restore original tty modes */
3002 run_io_fg(argv, dir);
3003 fprintf(stderr, "Press Enter to continue");
3006 redraw_display(TRUE);
3010 open_mergetool(const char *file)
3012 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
3014 open_external_viewer(mergetool_argv, opt_cdup);
3018 open_editor(bool from_root, const char *file)
3020 const char *editor_argv[] = { "vi", file, NULL };
3023 editor = getenv("GIT_EDITOR");
3024 if (!editor && *opt_editor)
3025 editor = opt_editor;
3027 editor = getenv("VISUAL");
3029 editor = getenv("EDITOR");
3033 editor_argv[0] = editor;
3034 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3038 open_run_request(enum request request)
3040 struct run_request *req = get_run_request(request);
3041 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3044 report("Unknown run request");
3048 if (format_argv(argv, req->argv, FORMAT_ALL))
3049 open_external_viewer(argv, NULL);
3054 * User request switch noodle
3058 view_driver(struct view *view, enum request request)
3062 if (request == REQ_NONE) {
3067 if (request > REQ_NONE) {
3068 open_run_request(request);
3069 /* FIXME: When all views can refresh always do this. */
3070 if (view == VIEW(REQ_VIEW_STATUS) ||
3071 view == VIEW(REQ_VIEW_MAIN) ||
3072 view == VIEW(REQ_VIEW_LOG) ||
3073 view == VIEW(REQ_VIEW_STAGE))
3074 request = REQ_REFRESH;
3079 if (view && view->lines) {
3080 request = view->ops->request(view, request, &view->line[view->lineno]);
3081 if (request == REQ_NONE)
3088 case REQ_MOVE_PAGE_UP:
3089 case REQ_MOVE_PAGE_DOWN:
3090 case REQ_MOVE_FIRST_LINE:
3091 case REQ_MOVE_LAST_LINE:
3092 move_view(view, request);
3095 case REQ_SCROLL_LINE_DOWN:
3096 case REQ_SCROLL_LINE_UP:
3097 case REQ_SCROLL_PAGE_DOWN:
3098 case REQ_SCROLL_PAGE_UP:
3099 scroll_view(view, request);
3102 case REQ_VIEW_BLAME:
3104 report("No file chosen, press %s to open tree view",
3105 get_key(REQ_VIEW_TREE));
3108 open_view(view, request, OPEN_DEFAULT);
3113 report("No file chosen, press %s to open tree view",
3114 get_key(REQ_VIEW_TREE));
3117 open_view(view, request, OPEN_DEFAULT);
3120 case REQ_VIEW_PAGER:
3121 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3122 report("No pager content, press %s to run command from prompt",
3123 get_key(REQ_PROMPT));
3126 open_view(view, request, OPEN_DEFAULT);
3129 case REQ_VIEW_STAGE:
3130 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3131 report("No stage content, press %s to open the status view and choose file",
3132 get_key(REQ_VIEW_STATUS));
3135 open_view(view, request, OPEN_DEFAULT);
3138 case REQ_VIEW_STATUS:
3139 if (opt_is_inside_work_tree == FALSE) {
3140 report("The status view requires a working tree");
3143 open_view(view, request, OPEN_DEFAULT);
3151 open_view(view, request, OPEN_DEFAULT);
3156 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3158 if ((view == VIEW(REQ_VIEW_DIFF) &&
3159 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3160 (view == VIEW(REQ_VIEW_DIFF) &&
3161 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3162 (view == VIEW(REQ_VIEW_STAGE) &&
3163 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3164 (view == VIEW(REQ_VIEW_BLOB) &&
3165 view->parent == VIEW(REQ_VIEW_TREE))) {
3168 view = view->parent;
3169 line = view->lineno;
3170 move_view(view, request);
3171 if (view_is_displayed(view))
3172 update_view_title(view);
3173 if (line != view->lineno)
3174 view->ops->request(view, REQ_ENTER,
3175 &view->line[view->lineno]);
3178 move_view(view, request);
3184 int nviews = displayed_views();
3185 int next_view = (current_view + 1) % nviews;
3187 if (next_view == current_view) {
3188 report("Only one view is displayed");
3192 current_view = next_view;
3193 /* Blur out the title of the previous view. */
3194 update_view_title(view);
3199 report("Refreshing is not yet supported for the %s view", view->name);
3203 if (displayed_views() == 2)
3204 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3207 case REQ_TOGGLE_LINENO:
3208 toggle_view_option(&opt_line_number, "line numbers");
3211 case REQ_TOGGLE_DATE:
3212 toggle_view_option(&opt_date, "date display");
3215 case REQ_TOGGLE_AUTHOR:
3216 toggle_view_option(&opt_author, "author display");
3219 case REQ_TOGGLE_REV_GRAPH:
3220 toggle_view_option(&opt_rev_graph, "revision graph display");
3223 case REQ_TOGGLE_REFS:
3224 toggle_view_option(&opt_show_refs, "reference display");
3228 case REQ_SEARCH_BACK:
3229 search_view(view, request);
3234 find_next(view, request);
3237 case REQ_STOP_LOADING:
3238 for (i = 0; i < ARRAY_SIZE(views); i++) {
3241 report("Stopped loading the %s view", view->name),
3242 end_update(view, TRUE);
3246 case REQ_SHOW_VERSION:
3247 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3250 case REQ_SCREEN_REDRAW:
3251 redraw_display(TRUE);
3255 report("Nothing to edit");
3259 report("Nothing to enter");
3262 case REQ_VIEW_CLOSE:
3263 /* XXX: Mark closed views by letting view->parent point to the
3264 * view itself. Parents to closed view should never be
3267 view->parent->parent != view->parent) {
3268 memset(display, 0, sizeof(display));
3270 display[current_view] = view->parent;
3271 view->parent = view;
3273 redraw_display(FALSE);
3282 report("Unknown key, press 'h' for help");
3291 * View backend utilities
3294 /* Parse author lines where the name may be empty:
3295 * author <email@address.tld> 1138474660 +0100
3298 parse_author_line(char *ident, char *author, size_t authorsize, struct tm *tm)
3300 char *nameend = strchr(ident, '<');
3301 char *emailend = strchr(ident, '>');
3303 if (nameend && emailend)
3304 *nameend = *emailend = 0;
3305 ident = chomp_string(ident);
3308 ident = chomp_string(nameend + 1);
3313 string_ncopy_do(author, authorsize, ident, strlen(ident));
3315 /* Parse epoch and timezone */
3316 if (emailend && emailend[1] == ' ') {
3317 char *secs = emailend + 2;
3318 char *zone = strchr(secs, ' ');
3319 time_t time = (time_t) atol(secs);
3321 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
3325 tz = ('0' - zone[1]) * 60 * 60 * 10;
3326 tz += ('0' - zone[2]) * 60 * 60;
3327 tz += ('0' - zone[3]) * 60;
3328 tz += ('0' - zone[4]) * 60;
3336 gmtime_r(&time, tm);
3340 static enum input_status
3341 select_commit_parent_handler(void *data, char *buf, int c)
3343 size_t parents = *(size_t *) data;
3350 parent = atoi(buf) * 10;
3353 if (parent > parents)
3359 select_commit_parent(const char *id, char rev[SIZEOF_REV])
3361 char buf[SIZEOF_STR * 4];
3362 const char *revlist_argv[] = {
3363 "git", "rev-list", "-1", "--parents", id, NULL
3367 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3368 !*chomp_string(buf) ||
3369 (parents = (strlen(buf) / 40) - 1) < 0) {
3370 report("Failed to get parent information");
3373 } else if (parents == 0) {
3374 report("The selected commit has no parents");
3379 char prompt[SIZEOF_STR];
3382 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3384 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3387 parents = atoi(result);
3390 string_copy_rev(rev, &buf[41 * parents]);
3399 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3401 char *text = line->data;
3403 if (opt_line_number && draw_lineno(view, lineno))
3406 draw_text(view, line->type, text, TRUE);
3411 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3413 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3414 char refbuf[SIZEOF_STR];
3417 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3418 ref = chomp_string(refbuf);
3423 /* This is the only fatal call, since it can "corrupt" the buffer. */
3424 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3431 add_pager_refs(struct view *view, struct line *line)
3433 char buf[SIZEOF_STR];
3434 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3436 size_t bufpos = 0, refpos = 0;
3437 const char *sep = "Refs: ";
3438 bool is_tag = FALSE;
3440 assert(line->type == LINE_COMMIT);
3442 refs = get_refs(commit_id);
3444 if (view == VIEW(REQ_VIEW_DIFF))
3445 goto try_add_describe_ref;
3450 struct ref *ref = refs[refpos];
3451 const char *fmt = ref->tag ? "%s[%s]" :
3452 ref->remote ? "%s<%s>" : "%s%s";
3454 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3459 } while (refs[refpos++]->next);
3461 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3462 try_add_describe_ref:
3463 /* Add <tag>-g<commit_id> "fake" reference. */
3464 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3471 add_line_text(view, buf, LINE_PP_REFS);
3475 pager_read(struct view *view, char *data)
3482 line = add_line_text(view, data, get_line_type(data));
3486 if (line->type == LINE_COMMIT &&
3487 (view == VIEW(REQ_VIEW_DIFF) ||
3488 view == VIEW(REQ_VIEW_LOG)))
3489 add_pager_refs(view, line);
3495 pager_request(struct view *view, enum request request, struct line *line)
3499 if (request != REQ_ENTER)
3502 if (line->type == LINE_COMMIT &&
3503 (view == VIEW(REQ_VIEW_LOG) ||
3504 view == VIEW(REQ_VIEW_PAGER))) {
3505 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3509 /* Always scroll the view even if it was split. That way
3510 * you can use Enter to scroll through the log view and
3511 * split open each commit diff. */
3512 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3514 /* FIXME: A minor workaround. Scrolling the view will call report("")
3515 * but if we are scrolling a non-current view this won't properly
3516 * update the view title. */
3518 update_view_title(view);
3524 pager_grep(struct view *view, struct line *line)
3527 char *text = line->data;
3532 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3539 pager_select(struct view *view, struct line *line)
3541 if (line->type == LINE_COMMIT) {
3542 char *text = (char *)line->data + STRING_SIZE("commit ");
3544 if (view != VIEW(REQ_VIEW_PAGER))
3545 string_copy_rev(view->ref, text);
3546 string_copy_rev(ref_commit, text);
3550 static struct view_ops pager_ops = {
3561 static const char *log_argv[SIZEOF_ARG] = {
3562 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3566 log_request(struct view *view, enum request request, struct line *line)
3571 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3574 return pager_request(view, request, line);
3578 static struct view_ops log_ops = {
3589 static const char *diff_argv[SIZEOF_ARG] = {
3590 "git", "show", "--pretty=fuller", "--no-color", "--root",
3591 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3594 static struct view_ops diff_ops = {
3610 help_open(struct view *view)
3614 if (view->lines > 0)
3617 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3619 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3622 if (req_info[i].request == REQ_NONE)
3625 if (!req_info[i].request) {
3626 add_line_text(view, "", LINE_DEFAULT);
3627 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3631 key = get_key(req_info[i].request);
3633 key = "(no key defined)";
3635 add_line_format(view, LINE_DEFAULT, " %-25s %s",
3636 key, req_info[i].help);
3640 add_line_text(view, "", LINE_DEFAULT);
3641 add_line_text(view, "External commands:", LINE_DEFAULT);
3644 for (i = 0; i < run_requests; i++) {
3645 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3647 char cmd[SIZEOF_STR];
3654 key = get_key_name(req->key);
3656 key = "(no key defined)";
3658 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3659 if (!string_format_from(cmd, &bufpos, "%s%s",
3660 argc ? " " : "", req->argv[argc]))
3663 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3664 keymap_table[req->keymap].name, key, cmd);
3670 static struct view_ops help_ops = {
3686 struct tree_stack_entry {
3687 struct tree_stack_entry *prev; /* Entry below this in the stack */
3688 unsigned long lineno; /* Line number to restore */
3689 char *name; /* Position of name in opt_path */
3692 /* The top of the path stack. */
3693 static struct tree_stack_entry *tree_stack = NULL;
3694 unsigned long tree_lineno = 0;
3697 pop_tree_stack_entry(void)
3699 struct tree_stack_entry *entry = tree_stack;
3701 tree_lineno = entry->lineno;
3703 tree_stack = entry->prev;
3708 push_tree_stack_entry(const char *name, unsigned long lineno)
3710 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3711 size_t pathlen = strlen(opt_path);
3716 entry->prev = tree_stack;
3717 entry->name = opt_path + pathlen;
3720 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3721 pop_tree_stack_entry();
3725 /* Move the current line to the first tree entry. */
3727 entry->lineno = lineno;
3730 /* Parse output from git-ls-tree(1):
3732 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3733 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3734 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3735 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3738 #define SIZEOF_TREE_ATTR \
3739 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3741 #define SIZEOF_TREE_MODE \
3742 STRING_SIZE("100644 ")
3744 #define TREE_ID_OFFSET \
3745 STRING_SIZE("100644 blob ")
3748 char id[SIZEOF_REV];
3750 struct tm time; /* Date from the author ident. */
3751 char author[75]; /* Author of the commit. */
3756 tree_path(struct line *line)
3758 return ((struct tree_entry *) line->data)->name;
3763 tree_compare_entry(struct line *line1, struct line *line2)
3765 if (line1->type != line2->type)
3766 return line1->type == LINE_TREE_DIR ? -1 : 1;
3767 return strcmp(tree_path(line1), tree_path(line2));
3770 static struct line *
3771 tree_entry(struct view *view, enum line_type type, const char *path,
3772 const char *mode, const char *id)
3774 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3775 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3777 if (!entry || !line) {
3782 strncpy(entry->name, path, strlen(path));
3784 entry->mode = strtoul(mode, NULL, 8);
3786 string_copy_rev(entry->id, id);
3792 tree_read_date(struct view *view, char *text, bool *read_date)
3794 static char author_name[SIZEOF_STR];
3795 static struct tm author_time;
3797 if (!text && *read_date) {
3802 char *path = *opt_path ? opt_path : ".";
3803 /* Find next entry to process */
3804 const char *log_file[] = {
3805 "git", "log", "--no-color", "--pretty=raw",
3806 "--cc", "--raw", view->id, "--", path, NULL
3810 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3811 report("Failed to load tree data");
3815 done_io(view->pipe);
3820 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3821 parse_author_line(text + STRING_SIZE("author "),
3822 author_name, sizeof(author_name), &author_time);
3824 } else if (*text == ':') {
3826 size_t annotated = 1;
3829 pos = strchr(text, '\t');
3833 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3834 text += strlen(opt_prefix);
3835 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3836 text += strlen(opt_path);
3837 pos = strchr(text, '/');
3841 for (i = 1; i < view->lines; i++) {
3842 struct line *line = &view->line[i];
3843 struct tree_entry *entry = line->data;
3845 annotated += !!*entry->author;
3846 if (*entry->author || strcmp(entry->name, text))
3849 string_copy(entry->author, author_name);
3850 memcpy(&entry->time, &author_time, sizeof(entry->time));
3855 if (annotated == view->lines)
3856 kill_io(view->pipe);
3862 tree_read(struct view *view, char *text)
3864 static bool read_date = FALSE;
3865 struct tree_entry *data;
3866 struct line *entry, *line;
3867 enum line_type type;
3868 size_t textlen = text ? strlen(text) : 0;
3869 char *path = text + SIZEOF_TREE_ATTR;
3871 if (read_date || !text)
3872 return tree_read_date(view, text, &read_date);
3874 if (textlen <= SIZEOF_TREE_ATTR)
3876 if (view->lines == 0 &&
3877 !tree_entry(view, LINE_TREE_PARENT, opt_path, NULL, NULL))
3880 /* Strip the path part ... */
3882 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3883 size_t striplen = strlen(opt_path);
3885 if (pathlen > striplen)
3886 memmove(path, path + striplen,
3887 pathlen - striplen + 1);
3889 /* Insert "link" to parent directory. */
3890 if (view->lines == 1 &&
3891 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3895 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3896 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3901 /* Skip "Directory ..." and ".." line. */
3902 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3903 if (tree_compare_entry(line, entry) <= 0)
3906 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3910 for (; line <= entry; line++)
3911 line->dirty = line->cleareol = 1;
3915 if (tree_lineno > view->lineno) {
3916 view->lineno = tree_lineno;
3924 tree_draw(struct view *view, struct line *line, unsigned int lineno)
3926 struct tree_entry *entry = line->data;
3928 if (line->type == LINE_TREE_PARENT) {
3929 if (draw_text(view, line->type, "Directory path /", TRUE))
3932 char mode[11] = "-r--r--r--";
3934 if (S_ISDIR(entry->mode)) {
3935 mode[3] = mode[6] = mode[9] = 'x';
3938 if (S_ISLNK(entry->mode))
3940 if (entry->mode & S_IWUSR)
3942 if (entry->mode & S_IXUSR)
3944 if (entry->mode & S_IXGRP)
3946 if (entry->mode & S_IXOTH)
3948 if (draw_field(view, LINE_TREE_MODE, mode, 11, TRUE))
3952 draw_field(view, LINE_MAIN_AUTHOR, entry->author, opt_author_cols, TRUE))
3955 if (opt_date && draw_date(view, *entry->author ? &entry->time : NULL))
3958 if (draw_text(view, line->type, entry->name, TRUE))
3966 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
3967 int fd = mkstemp(file);
3970 report("Failed to create temporary file");
3971 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
3972 report("Failed to save blob data to file");
3974 open_editor(FALSE, file);
3980 tree_request(struct view *view, enum request request, struct line *line)
3982 enum open_flags flags;
3985 case REQ_VIEW_BLAME:
3986 if (line->type != LINE_TREE_FILE) {
3987 report("Blame only supported for files");
3991 string_copy(opt_ref, view->vid);
3995 if (line->type != LINE_TREE_FILE) {
3996 report("Edit only supported for files");
3997 } else if (!is_head_commit(view->vid)) {
4000 open_editor(TRUE, opt_file);
4006 /* quit view if at top of tree */
4007 return REQ_VIEW_CLOSE;
4010 line = &view->line[1];
4020 /* Cleanup the stack if the tree view is at a different tree. */
4021 while (!*opt_path && tree_stack)
4022 pop_tree_stack_entry();
4024 switch (line->type) {
4026 /* Depending on whether it is a subdir or parent (updir?) link
4027 * mangle the path buffer. */
4028 if (line == &view->line[1] && *opt_path) {
4029 pop_tree_stack_entry();
4032 const char *basename = tree_path(line);
4034 push_tree_stack_entry(basename, view->lineno);
4037 /* Trees and subtrees share the same ID, so they are not not
4038 * unique like blobs. */
4039 flags = OPEN_RELOAD;
4040 request = REQ_VIEW_TREE;
4043 case LINE_TREE_FILE:
4044 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4045 request = REQ_VIEW_BLOB;
4052 open_view(view, request, flags);
4053 if (request == REQ_VIEW_TREE)
4054 view->lineno = tree_lineno;
4060 tree_select(struct view *view, struct line *line)
4062 struct tree_entry *entry = line->data;
4064 if (line->type == LINE_TREE_FILE) {
4065 string_copy_rev(ref_blob, entry->id);
4066 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4068 } else if (line->type != LINE_TREE_DIR) {
4072 string_copy_rev(view->ref, entry->id);
4075 static const char *tree_argv[SIZEOF_ARG] = {
4076 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4079 static struct view_ops tree_ops = {
4091 blob_read(struct view *view, char *line)
4095 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4099 blob_request(struct view *view, enum request request, struct line *line)
4106 return pager_request(view, request, line);
4110 static const char *blob_argv[SIZEOF_ARG] = {
4111 "git", "cat-file", "blob", "%(blob)", NULL
4114 static struct view_ops blob_ops = {
4128 * Loading the blame view is a two phase job:
4130 * 1. File content is read either using opt_file from the
4131 * filesystem or using git-cat-file.
4132 * 2. Then blame information is incrementally added by
4133 * reading output from git-blame.
4136 static const char *blame_head_argv[] = {
4137 "git", "blame", "--incremental", "--", "%(file)", NULL
4140 static const char *blame_ref_argv[] = {
4141 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4144 static const char *blame_cat_file_argv[] = {
4145 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4148 struct blame_commit {
4149 char id[SIZEOF_REV]; /* SHA1 ID. */
4150 char title[128]; /* First line of the commit message. */
4151 char author[75]; /* Author of the commit. */
4152 struct tm time; /* Date from the author ident. */
4153 char filename[128]; /* Name of file. */
4154 bool has_previous; /* Was a "previous" line detected. */
4158 struct blame_commit *commit;
4163 blame_open(struct view *view)
4165 if (*opt_ref || !io_open(&view->io, opt_file)) {
4166 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4170 setup_update(view, opt_file);
4171 string_format(view->ref, "%s ...", opt_file);
4176 static struct blame_commit *
4177 get_blame_commit(struct view *view, const char *id)
4181 for (i = 0; i < view->lines; i++) {
4182 struct blame *blame = view->line[i].data;
4187 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4188 return blame->commit;
4192 struct blame_commit *commit = calloc(1, sizeof(*commit));
4195 string_ncopy(commit->id, id, SIZEOF_REV);
4201 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4203 const char *pos = *posref;
4206 pos = strchr(pos + 1, ' ');
4207 if (!pos || !isdigit(pos[1]))
4209 *number = atoi(pos + 1);
4210 if (*number < min || *number > max)
4217 static struct blame_commit *
4218 parse_blame_commit(struct view *view, const char *text, int *blamed)
4220 struct blame_commit *commit;
4221 struct blame *blame;
4222 const char *pos = text + SIZEOF_REV - 1;
4226 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
4229 if (!parse_number(&pos, &lineno, 1, view->lines) ||
4230 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4233 commit = get_blame_commit(view, text);
4239 struct line *line = &view->line[lineno + group - 1];
4242 blame->commit = commit;
4250 blame_read_file(struct view *view, const char *line, bool *read_file)
4253 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4256 if (view->lines == 0 && !view->parent)
4257 die("No blame exist for %s", view->vid);
4259 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4260 report("Failed to load blame data");
4264 done_io(view->pipe);
4270 size_t linelen = strlen(line);
4271 struct blame *blame = malloc(sizeof(*blame) + linelen);
4273 blame->commit = NULL;
4274 strncpy(blame->text, line, linelen);
4275 blame->text[linelen] = 0;
4276 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4281 match_blame_header(const char *name, char **line)
4283 size_t namelen = strlen(name);
4284 bool matched = !strncmp(name, *line, namelen);
4293 blame_read(struct view *view, char *line)
4295 static struct blame_commit *commit = NULL;
4296 static int blamed = 0;
4297 static time_t author_time;
4298 static bool read_file = TRUE;
4301 return blame_read_file(view, line, &read_file);
4308 string_format(view->ref, "%s", view->vid);
4309 if (view_is_displayed(view)) {
4310 update_view_title(view);
4311 redraw_view_from(view, 0);
4317 commit = parse_blame_commit(view, line, &blamed);
4318 string_format(view->ref, "%s %2d%%", view->vid,
4319 view->lines ? blamed * 100 / view->lines : 0);
4321 } else if (match_blame_header("author ", &line)) {
4322 string_ncopy(commit->author, line, strlen(line));
4324 } else if (match_blame_header("author-time ", &line)) {
4325 author_time = (time_t) atol(line);
4327 } else if (match_blame_header("author-tz ", &line)) {
4330 tz = ('0' - line[1]) * 60 * 60 * 10;
4331 tz += ('0' - line[2]) * 60 * 60;
4332 tz += ('0' - line[3]) * 60;
4333 tz += ('0' - line[4]) * 60;
4339 gmtime_r(&author_time, &commit->time);
4341 } else if (match_blame_header("summary ", &line)) {
4342 string_ncopy(commit->title, line, strlen(line));
4344 } else if (match_blame_header("previous ", &line)) {
4345 commit->has_previous = TRUE;
4347 } else if (match_blame_header("filename ", &line)) {
4348 string_ncopy(commit->filename, line, strlen(line));
4356 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4358 struct blame *blame = line->data;
4359 struct tm *time = NULL;
4360 const char *id = NULL, *author = NULL;
4362 if (blame->commit && *blame->commit->filename) {
4363 id = blame->commit->id;
4364 author = blame->commit->author;
4365 time = &blame->commit->time;
4368 if (opt_date && draw_date(view, time))
4372 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
4375 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4378 if (draw_lineno(view, lineno))
4381 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4386 check_blame_commit(struct blame *blame)
4389 report("Commit data not loaded yet");
4390 else if (!strcmp(blame->commit->id, NULL_ID))
4391 report("No commit exist for the selected line");
4398 blame_request(struct view *view, enum request request, struct line *line)
4400 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4401 struct blame *blame = line->data;
4404 case REQ_VIEW_BLAME:
4405 if (check_blame_commit(blame)) {
4406 string_copy(opt_ref, blame->commit->id);
4407 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4412 if (check_blame_commit(blame) &&
4413 select_commit_parent(blame->commit->id, opt_ref))
4414 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4418 if (!blame->commit) {
4419 report("No commit loaded yet");
4423 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4424 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4427 if (!strcmp(blame->commit->id, NULL_ID)) {
4428 struct view *diff = VIEW(REQ_VIEW_DIFF);
4429 const char *diff_index_argv[] = {
4430 "git", "diff-index", "--root", "--patch-with-stat",
4431 "-C", "-M", "HEAD", "--", view->vid, NULL
4434 if (!blame->commit->has_previous) {
4435 diff_index_argv[1] = "diff";
4436 diff_index_argv[2] = "--no-color";
4437 diff_index_argv[6] = "--";
4438 diff_index_argv[7] = "/dev/null";
4441 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4442 report("Failed to allocate diff command");
4445 flags |= OPEN_PREPARED;
4448 open_view(view, REQ_VIEW_DIFF, flags);
4449 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4450 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4461 blame_grep(struct view *view, struct line *line)
4463 struct blame *blame = line->data;
4464 struct blame_commit *commit = blame->commit;
4467 #define MATCH(text, on) \
4468 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4471 char buf[DATE_COLS + 1];
4473 if (MATCH(commit->title, 1) ||
4474 MATCH(commit->author, opt_author) ||
4475 MATCH(commit->id, opt_date))
4478 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4483 return MATCH(blame->text, 1);
4489 blame_select(struct view *view, struct line *line)
4491 struct blame *blame = line->data;
4492 struct blame_commit *commit = blame->commit;
4497 if (!strcmp(commit->id, NULL_ID))
4498 string_ncopy(ref_commit, "HEAD", 4);
4500 string_copy_rev(ref_commit, commit->id);
4503 static struct view_ops blame_ops = {
4522 char rev[SIZEOF_REV];
4523 char name[SIZEOF_STR];
4527 char rev[SIZEOF_REV];
4528 char name[SIZEOF_STR];
4532 static char status_onbranch[SIZEOF_STR];
4533 static struct status stage_status;
4534 static enum line_type stage_line_type;
4535 static size_t stage_chunks;
4536 static int *stage_chunk;
4538 /* This should work even for the "On branch" line. */
4540 status_has_none(struct view *view, struct line *line)
4542 return line < view->line + view->lines && !line[1].data;
4545 /* Get fields from the diff line:
4546 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4549 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4551 const char *old_mode = buf + 1;
4552 const char *new_mode = buf + 8;
4553 const char *old_rev = buf + 15;
4554 const char *new_rev = buf + 56;
4555 const char *status = buf + 97;
4558 old_mode[-1] != ':' ||
4559 new_mode[-1] != ' ' ||
4560 old_rev[-1] != ' ' ||
4561 new_rev[-1] != ' ' ||
4565 file->status = *status;
4567 string_copy_rev(file->old.rev, old_rev);
4568 string_copy_rev(file->new.rev, new_rev);
4570 file->old.mode = strtoul(old_mode, NULL, 8);
4571 file->new.mode = strtoul(new_mode, NULL, 8);
4573 file->old.name[0] = file->new.name[0] = 0;
4579 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4581 struct status *file = NULL;
4582 struct status *unmerged = NULL;
4586 if (!run_io(&io, argv, NULL, IO_RD))
4589 add_line_data(view, NULL, type);
4591 while ((buf = io_get(&io, 0, TRUE))) {
4593 file = calloc(1, sizeof(*file));
4594 if (!file || !add_line_data(view, file, type))
4598 /* Parse diff info part. */
4600 file->status = status;
4602 string_copy(file->old.rev, NULL_ID);
4604 } else if (!file->status) {
4605 if (!status_get_diff(file, buf, strlen(buf)))
4608 buf = io_get(&io, 0, TRUE);
4612 /* Collapse all 'M'odified entries that follow a
4613 * associated 'U'nmerged entry. */
4614 if (file->status == 'U') {
4617 } else if (unmerged) {
4618 int collapse = !strcmp(buf, unmerged->new.name);
4630 /* Grab the old name for rename/copy. */
4631 if (!*file->old.name &&
4632 (file->status == 'R' || file->status == 'C')) {
4633 string_ncopy(file->old.name, buf, strlen(buf));
4635 buf = io_get(&io, 0, TRUE);
4640 /* git-ls-files just delivers a NUL separated list of
4641 * file names similar to the second half of the
4642 * git-diff-* output. */
4643 string_ncopy(file->new.name, buf, strlen(buf));
4644 if (!*file->old.name)
4645 string_copy(file->old.name, file->new.name);
4649 if (io_error(&io)) {
4655 if (!view->line[view->lines - 1].data)
4656 add_line_data(view, NULL, LINE_STAT_NONE);
4662 /* Don't show unmerged entries in the staged section. */
4663 static const char *status_diff_index_argv[] = {
4664 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4665 "--cached", "-M", "HEAD", NULL
4668 static const char *status_diff_files_argv[] = {
4669 "git", "diff-files", "-z", NULL
4672 static const char *status_list_other_argv[] = {
4673 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4676 static const char *status_list_no_head_argv[] = {
4677 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4680 static const char *update_index_argv[] = {
4681 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4684 /* Restore the previous line number to stay in the context or select a
4685 * line with something that can be updated. */
4687 status_restore(struct view *view)
4689 if (view->p_lineno >= view->lines)
4690 view->p_lineno = view->lines - 1;
4691 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4693 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4696 /* If the above fails, always skip the "On branch" line. */
4697 if (view->p_lineno < view->lines)
4698 view->lineno = view->p_lineno;
4702 if (view->lineno < view->offset)
4703 view->offset = view->lineno;
4704 else if (view->offset + view->height <= view->lineno)
4705 view->offset = view->lineno - view->height + 1;
4707 view->p_restore = FALSE;
4710 /* First parse staged info using git-diff-index(1), then parse unstaged
4711 * info using git-diff-files(1), and finally untracked files using
4712 * git-ls-files(1). */
4714 status_open(struct view *view)
4718 add_line_data(view, NULL, LINE_STAT_HEAD);
4719 if (is_initial_commit())
4720 string_copy(status_onbranch, "Initial commit");
4721 else if (!*opt_head)
4722 string_copy(status_onbranch, "Not currently on any branch");
4723 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4726 run_io_bg(update_index_argv);
4728 if (is_initial_commit()) {
4729 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4731 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4735 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4736 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4739 /* Restore the exact position or use the specialized restore
4741 if (!view->p_restore)
4742 status_restore(view);
4747 status_draw(struct view *view, struct line *line, unsigned int lineno)
4749 struct status *status = line->data;
4750 enum line_type type;
4754 switch (line->type) {
4755 case LINE_STAT_STAGED:
4756 type = LINE_STAT_SECTION;
4757 text = "Changes to be committed:";
4760 case LINE_STAT_UNSTAGED:
4761 type = LINE_STAT_SECTION;
4762 text = "Changed but not updated:";
4765 case LINE_STAT_UNTRACKED:
4766 type = LINE_STAT_SECTION;
4767 text = "Untracked files:";
4770 case LINE_STAT_NONE:
4771 type = LINE_DEFAULT;
4772 text = " (no files)";
4775 case LINE_STAT_HEAD:
4776 type = LINE_STAT_HEAD;
4777 text = status_onbranch;
4784 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4786 buf[0] = status->status;
4787 if (draw_text(view, line->type, buf, TRUE))
4789 type = LINE_DEFAULT;
4790 text = status->new.name;
4793 draw_text(view, type, text, TRUE);
4798 status_enter(struct view *view, struct line *line)
4800 struct status *status = line->data;
4801 const char *oldpath = status ? status->old.name : NULL;
4802 /* Diffs for unmerged entries are empty when passing the new
4803 * path, so leave it empty. */
4804 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4806 enum open_flags split;
4807 struct view *stage = VIEW(REQ_VIEW_STAGE);
4809 if (line->type == LINE_STAT_NONE ||
4810 (!status && line[1].type == LINE_STAT_NONE)) {
4811 report("No file to diff");
4815 switch (line->type) {
4816 case LINE_STAT_STAGED:
4817 if (is_initial_commit()) {
4818 const char *no_head_diff_argv[] = {
4819 "git", "diff", "--no-color", "--patch-with-stat",
4820 "--", "/dev/null", newpath, NULL
4823 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4826 const char *index_show_argv[] = {
4827 "git", "diff-index", "--root", "--patch-with-stat",
4828 "-C", "-M", "--cached", "HEAD", "--",
4829 oldpath, newpath, NULL
4832 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4837 info = "Staged changes to %s";
4839 info = "Staged changes";
4842 case LINE_STAT_UNSTAGED:
4844 const char *files_show_argv[] = {
4845 "git", "diff-files", "--root", "--patch-with-stat",
4846 "-C", "-M", "--", oldpath, newpath, NULL
4849 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4852 info = "Unstaged changes to %s";
4854 info = "Unstaged changes";
4857 case LINE_STAT_UNTRACKED:
4859 report("No file to show");
4863 if (!suffixcmp(status->new.name, -1, "/")) {
4864 report("Cannot display a directory");
4868 if (!prepare_update_file(stage, newpath))
4870 info = "Untracked file %s";
4873 case LINE_STAT_HEAD:
4877 die("line type %d not handled in switch", line->type);
4880 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4881 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
4882 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4884 stage_status = *status;
4886 memset(&stage_status, 0, sizeof(stage_status));
4889 stage_line_type = line->type;
4891 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4898 status_exists(struct status *status, enum line_type type)
4900 struct view *view = VIEW(REQ_VIEW_STATUS);
4901 unsigned long lineno;
4903 for (lineno = 0; lineno < view->lines; lineno++) {
4904 struct line *line = &view->line[lineno];
4905 struct status *pos = line->data;
4907 if (line->type != type)
4909 if (!pos && (!status || !status->status) && line[1].data) {
4910 select_view_line(view, lineno);
4913 if (pos && !strcmp(status->new.name, pos->new.name)) {
4914 select_view_line(view, lineno);
4924 status_update_prepare(struct io *io, enum line_type type)
4926 const char *staged_argv[] = {
4927 "git", "update-index", "-z", "--index-info", NULL
4929 const char *others_argv[] = {
4930 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4934 case LINE_STAT_STAGED:
4935 return run_io(io, staged_argv, opt_cdup, IO_WR);
4937 case LINE_STAT_UNSTAGED:
4938 return run_io(io, others_argv, opt_cdup, IO_WR);
4940 case LINE_STAT_UNTRACKED:
4941 return run_io(io, others_argv, NULL, IO_WR);
4944 die("line type %d not handled in switch", type);
4950 status_update_write(struct io *io, struct status *status, enum line_type type)
4952 char buf[SIZEOF_STR];
4956 case LINE_STAT_STAGED:
4957 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4960 status->old.name, 0))
4964 case LINE_STAT_UNSTAGED:
4965 case LINE_STAT_UNTRACKED:
4966 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4971 die("line type %d not handled in switch", type);
4974 return io_write(io, buf, bufsize);
4978 status_update_file(struct status *status, enum line_type type)
4983 if (!status_update_prepare(&io, type))
4986 result = status_update_write(&io, status, type);
4992 status_update_files(struct view *view, struct line *line)
4996 struct line *pos = view->line + view->lines;
5000 if (!status_update_prepare(&io, line->type))
5003 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5006 for (file = 0, done = 0; result && file < files; line++, file++) {
5007 int almost_done = file * 100 / files;
5009 if (almost_done > done) {
5011 string_format(view->ref, "updating file %u of %u (%d%% done)",
5013 update_view_title(view);
5015 result = status_update_write(&io, line->data, line->type);
5023 status_update(struct view *view)
5025 struct line *line = &view->line[view->lineno];
5027 assert(view->lines);
5030 /* This should work even for the "On branch" line. */
5031 if (line < view->line + view->lines && !line[1].data) {
5032 report("Nothing to update");
5036 if (!status_update_files(view, line + 1)) {
5037 report("Failed to update file status");
5041 } else if (!status_update_file(line->data, line->type)) {
5042 report("Failed to update file status");
5050 status_revert(struct status *status, enum line_type type, bool has_none)
5052 if (!status || type != LINE_STAT_UNSTAGED) {
5053 if (type == LINE_STAT_STAGED) {
5054 report("Cannot revert changes to staged files");
5055 } else if (type == LINE_STAT_UNTRACKED) {
5056 report("Cannot revert changes to untracked files");
5057 } else if (has_none) {
5058 report("Nothing to revert");
5060 report("Cannot revert changes to multiple files");
5065 const char *checkout_argv[] = {
5066 "git", "checkout", "--", status->old.name, NULL
5069 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5071 return run_io_fg(checkout_argv, opt_cdup);
5076 status_request(struct view *view, enum request request, struct line *line)
5078 struct status *status = line->data;
5081 case REQ_STATUS_UPDATE:
5082 if (!status_update(view))
5086 case REQ_STATUS_REVERT:
5087 if (!status_revert(status, line->type, status_has_none(view, line)))
5091 case REQ_STATUS_MERGE:
5092 if (!status || status->status != 'U') {
5093 report("Merging only possible for files with unmerged status ('U').");
5096 open_mergetool(status->new.name);
5102 if (status->status == 'D') {
5103 report("File has been deleted.");
5107 open_editor(status->status != '?', status->new.name);
5110 case REQ_VIEW_BLAME:
5112 string_copy(opt_file, status->new.name);
5118 /* After returning the status view has been split to
5119 * show the stage view. No further reloading is
5121 status_enter(view, line);
5125 /* Simply reload the view. */
5132 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5138 status_select(struct view *view, struct line *line)
5140 struct status *status = line->data;
5141 char file[SIZEOF_STR] = "all files";
5145 if (status && !string_format(file, "'%s'", status->new.name))
5148 if (!status && line[1].type == LINE_STAT_NONE)
5151 switch (line->type) {
5152 case LINE_STAT_STAGED:
5153 text = "Press %s to unstage %s for commit";
5156 case LINE_STAT_UNSTAGED:
5157 text = "Press %s to stage %s for commit";
5160 case LINE_STAT_UNTRACKED:
5161 text = "Press %s to stage %s for addition";
5164 case LINE_STAT_HEAD:
5165 case LINE_STAT_NONE:
5166 text = "Nothing to update";
5170 die("line type %d not handled in switch", line->type);
5173 if (status && status->status == 'U') {
5174 text = "Press %s to resolve conflict in %s";
5175 key = get_key(REQ_STATUS_MERGE);
5178 key = get_key(REQ_STATUS_UPDATE);
5181 string_format(view->ref, text, key, file);
5185 status_grep(struct view *view, struct line *line)
5187 struct status *status = line->data;
5188 enum { S_STATUS, S_NAME, S_END } state;
5195 for (state = S_STATUS; state < S_END; state++) {
5199 case S_NAME: text = status->new.name; break;
5201 buf[0] = status->status;
5209 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5216 static struct view_ops status_ops = {
5229 stage_diff_write(struct io *io, struct line *line, struct line *end)
5231 while (line < end) {
5232 if (!io_write(io, line->data, strlen(line->data)) ||
5233 !io_write(io, "\n", 1))
5236 if (line->type == LINE_DIFF_CHUNK ||
5237 line->type == LINE_DIFF_HEADER)
5244 static struct line *
5245 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5247 for (; view->line < line; line--)
5248 if (line->type == type)
5255 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5257 const char *apply_argv[SIZEOF_ARG] = {
5258 "git", "apply", "--whitespace=nowarn", NULL
5260 struct line *diff_hdr;
5264 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5269 apply_argv[argc++] = "--cached";
5270 if (revert || stage_line_type == LINE_STAT_STAGED)
5271 apply_argv[argc++] = "-R";
5272 apply_argv[argc++] = "-";
5273 apply_argv[argc++] = NULL;
5274 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5277 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5278 !stage_diff_write(&io, chunk, view->line + view->lines))
5282 run_io_bg(update_index_argv);
5284 return chunk ? TRUE : FALSE;
5288 stage_update(struct view *view, struct line *line)
5290 struct line *chunk = NULL;
5292 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5293 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5296 if (!stage_apply_chunk(view, chunk, FALSE)) {
5297 report("Failed to apply chunk");
5301 } else if (!stage_status.status) {
5302 view = VIEW(REQ_VIEW_STATUS);
5304 for (line = view->line; line < view->line + view->lines; line++)
5305 if (line->type == stage_line_type)
5308 if (!status_update_files(view, line + 1)) {
5309 report("Failed to update files");
5313 } else if (!status_update_file(&stage_status, stage_line_type)) {
5314 report("Failed to update file");
5322 stage_revert(struct view *view, struct line *line)
5324 struct line *chunk = NULL;
5326 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5327 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5330 if (!prompt_yesno("Are you sure you want to revert changes?"))
5333 if (!stage_apply_chunk(view, chunk, TRUE)) {
5334 report("Failed to revert chunk");
5340 return status_revert(stage_status.status ? &stage_status : NULL,
5341 stage_line_type, FALSE);
5347 stage_next(struct view *view, struct line *line)
5351 if (!stage_chunks) {
5352 static size_t alloc = 0;
5355 for (line = view->line; line < view->line + view->lines; line++) {
5356 if (line->type != LINE_DIFF_CHUNK)
5359 tmp = realloc_items(stage_chunk, &alloc,
5360 stage_chunks, sizeof(*tmp));
5362 report("Allocation failure");
5367 stage_chunk[stage_chunks++] = line - view->line;
5371 for (i = 0; i < stage_chunks; i++) {
5372 if (stage_chunk[i] > view->lineno) {
5373 do_scroll_view(view, stage_chunk[i] - view->lineno);
5374 report("Chunk %d of %d", i + 1, stage_chunks);
5379 report("No next chunk found");
5383 stage_request(struct view *view, enum request request, struct line *line)
5386 case REQ_STATUS_UPDATE:
5387 if (!stage_update(view, line))
5391 case REQ_STATUS_REVERT:
5392 if (!stage_revert(view, line))
5396 case REQ_STAGE_NEXT:
5397 if (stage_line_type == LINE_STAT_UNTRACKED) {
5398 report("File is untracked; press %s to add",
5399 get_key(REQ_STATUS_UPDATE));
5402 stage_next(view, line);
5406 if (!stage_status.new.name[0])
5408 if (stage_status.status == 'D') {
5409 report("File has been deleted.");
5413 open_editor(stage_status.status != '?', stage_status.new.name);
5417 /* Reload everything ... */
5420 case REQ_VIEW_BLAME:
5421 if (stage_status.new.name[0]) {
5422 string_copy(opt_file, stage_status.new.name);
5428 return pager_request(view, request, line);
5434 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5435 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5437 /* Check whether the staged entry still exists, and close the
5438 * stage view if it doesn't. */
5439 if (!status_exists(&stage_status, stage_line_type)) {
5440 status_restore(VIEW(REQ_VIEW_STATUS));
5441 return REQ_VIEW_CLOSE;
5444 if (stage_line_type == LINE_STAT_UNTRACKED) {
5445 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5446 report("Cannot display a directory");
5450 if (!prepare_update_file(view, stage_status.new.name)) {
5451 report("Failed to open file: %s", strerror(errno));
5455 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5460 static struct view_ops stage_ops = {
5477 char id[SIZEOF_REV]; /* SHA1 ID. */
5478 char title[128]; /* First line of the commit message. */
5479 char author[75]; /* Author of the commit. */
5480 struct tm time; /* Date from the author ident. */
5481 struct ref **refs; /* Repository references. */
5482 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5483 size_t graph_size; /* The width of the graph array. */
5484 bool has_parents; /* Rewritten --parents seen. */
5487 /* Size of rev graph with no "padding" columns */
5488 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5491 struct rev_graph *prev, *next, *parents;
5492 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5494 struct commit *commit;
5496 unsigned int boundary:1;
5499 /* Parents of the commit being visualized. */
5500 static struct rev_graph graph_parents[4];
5502 /* The current stack of revisions on the graph. */
5503 static struct rev_graph graph_stacks[4] = {
5504 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5505 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5506 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5507 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5511 graph_parent_is_merge(struct rev_graph *graph)
5513 return graph->parents->size > 1;
5517 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5519 struct commit *commit = graph->commit;
5521 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5522 commit->graph[commit->graph_size++] = symbol;
5526 clear_rev_graph(struct rev_graph *graph)
5528 graph->boundary = 0;
5529 graph->size = graph->pos = 0;
5530 graph->commit = NULL;
5531 memset(graph->parents, 0, sizeof(*graph->parents));
5535 done_rev_graph(struct rev_graph *graph)
5537 if (graph_parent_is_merge(graph) &&
5538 graph->pos < graph->size - 1 &&
5539 graph->next->size == graph->size + graph->parents->size - 1) {
5540 size_t i = graph->pos + graph->parents->size - 1;
5542 graph->commit->graph_size = i * 2;
5543 while (i < graph->next->size - 1) {
5544 append_to_rev_graph(graph, ' ');
5545 append_to_rev_graph(graph, '\\');
5550 clear_rev_graph(graph);
5554 push_rev_graph(struct rev_graph *graph, const char *parent)
5558 /* "Collapse" duplicate parents lines.
5560 * FIXME: This needs to also update update the drawn graph but
5561 * for now it just serves as a method for pruning graph lines. */
5562 for (i = 0; i < graph->size; i++)
5563 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5566 if (graph->size < SIZEOF_REVITEMS) {
5567 string_copy_rev(graph->rev[graph->size++], parent);
5572 get_rev_graph_symbol(struct rev_graph *graph)
5576 if (graph->boundary)
5577 symbol = REVGRAPH_BOUND;
5578 else if (graph->parents->size == 0)
5579 symbol = REVGRAPH_INIT;
5580 else if (graph_parent_is_merge(graph))
5581 symbol = REVGRAPH_MERGE;
5582 else if (graph->pos >= graph->size)
5583 symbol = REVGRAPH_BRANCH;
5585 symbol = REVGRAPH_COMMIT;
5591 draw_rev_graph(struct rev_graph *graph)
5594 chtype separator, line;
5596 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5597 static struct rev_filler fillers[] = {
5603 chtype symbol = get_rev_graph_symbol(graph);
5604 struct rev_filler *filler;
5607 if (opt_line_graphics)
5608 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5610 filler = &fillers[DEFAULT];
5612 for (i = 0; i < graph->pos; i++) {
5613 append_to_rev_graph(graph, filler->line);
5614 if (graph_parent_is_merge(graph->prev) &&
5615 graph->prev->pos == i)
5616 filler = &fillers[RSHARP];
5618 append_to_rev_graph(graph, filler->separator);
5621 /* Place the symbol for this revision. */
5622 append_to_rev_graph(graph, symbol);
5624 if (graph->prev->size > graph->size)
5625 filler = &fillers[RDIAG];
5627 filler = &fillers[DEFAULT];
5631 for (; i < graph->size; i++) {
5632 append_to_rev_graph(graph, filler->separator);
5633 append_to_rev_graph(graph, filler->line);
5634 if (graph_parent_is_merge(graph->prev) &&
5635 i < graph->prev->pos + graph->parents->size)
5636 filler = &fillers[RSHARP];
5637 if (graph->prev->size > graph->size)
5638 filler = &fillers[LDIAG];
5641 if (graph->prev->size > graph->size) {
5642 append_to_rev_graph(graph, filler->separator);
5643 if (filler->line != ' ')
5644 append_to_rev_graph(graph, filler->line);
5648 /* Prepare the next rev graph */
5650 prepare_rev_graph(struct rev_graph *graph)
5654 /* First, traverse all lines of revisions up to the active one. */
5655 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5656 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5659 push_rev_graph(graph->next, graph->rev[graph->pos]);
5662 /* Interleave the new revision parent(s). */
5663 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5664 push_rev_graph(graph->next, graph->parents->rev[i]);
5666 /* Lastly, put any remaining revisions. */
5667 for (i = graph->pos + 1; i < graph->size; i++)
5668 push_rev_graph(graph->next, graph->rev[i]);
5672 update_rev_graph(struct view *view, struct rev_graph *graph)
5674 /* If this is the finalizing update ... */
5676 prepare_rev_graph(graph);
5678 /* Graph visualization needs a one rev look-ahead,
5679 * so the first update doesn't visualize anything. */
5680 if (!graph->prev->commit)
5683 if (view->lines > 2)
5684 view->line[view->lines - 3].dirty = 1;
5685 if (view->lines > 1)
5686 view->line[view->lines - 2].dirty = 1;
5687 draw_rev_graph(graph->prev);
5688 done_rev_graph(graph->prev->prev);
5696 static const char *main_argv[SIZEOF_ARG] = {
5697 "git", "log", "--no-color", "--pretty=raw", "--parents",
5698 "--topo-order", "%(head)", NULL
5702 main_draw(struct view *view, struct line *line, unsigned int lineno)
5704 struct commit *commit = line->data;
5706 if (!*commit->author)
5709 if (opt_date && draw_date(view, &commit->time))
5713 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5716 if (opt_rev_graph && commit->graph_size &&
5717 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5720 if (opt_show_refs && commit->refs) {
5724 enum line_type type;
5726 if (commit->refs[i]->head)
5727 type = LINE_MAIN_HEAD;
5728 else if (commit->refs[i]->ltag)
5729 type = LINE_MAIN_LOCAL_TAG;
5730 else if (commit->refs[i]->tag)
5731 type = LINE_MAIN_TAG;
5732 else if (commit->refs[i]->tracked)
5733 type = LINE_MAIN_TRACKED;
5734 else if (commit->refs[i]->remote)
5735 type = LINE_MAIN_REMOTE;
5737 type = LINE_MAIN_REF;
5739 if (draw_text(view, type, "[", TRUE) ||
5740 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5741 draw_text(view, type, "]", TRUE))
5744 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5746 } while (commit->refs[i++]->next);
5749 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5753 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5755 main_read(struct view *view, char *line)
5757 static struct rev_graph *graph = graph_stacks;
5758 enum line_type type;
5759 struct commit *commit;
5764 if (!view->lines && !view->parent)
5765 die("No revisions match the given arguments.");
5766 if (view->lines > 0) {
5767 commit = view->line[view->lines - 1].data;
5768 view->line[view->lines - 1].dirty = 1;
5769 if (!*commit->author) {
5772 graph->commit = NULL;
5775 update_rev_graph(view, graph);
5777 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5778 clear_rev_graph(&graph_stacks[i]);
5782 type = get_line_type(line);
5783 if (type == LINE_COMMIT) {
5784 commit = calloc(1, sizeof(struct commit));
5788 line += STRING_SIZE("commit ");
5790 graph->boundary = 1;
5794 string_copy_rev(commit->id, line);
5795 commit->refs = get_refs(commit->id);
5796 graph->commit = commit;
5797 add_line_data(view, commit, LINE_MAIN_COMMIT);
5799 while ((line = strchr(line, ' '))) {
5801 push_rev_graph(graph->parents, line);
5802 commit->has_parents = TRUE;
5809 commit = view->line[view->lines - 1].data;
5813 if (commit->has_parents)
5815 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5819 parse_author_line(line + STRING_SIZE("author "),
5820 commit->author, sizeof(commit->author),
5822 update_rev_graph(view, graph);
5823 graph = graph->next;
5827 /* Fill in the commit title if it has not already been set. */
5828 if (commit->title[0])
5831 /* Require titles to start with a non-space character at the
5832 * offset used by git log. */
5833 if (strncmp(line, " ", 4))
5836 /* Well, if the title starts with a whitespace character,
5837 * try to be forgiving. Otherwise we end up with no title. */
5838 while (isspace(*line))
5842 /* FIXME: More graceful handling of titles; append "..." to
5843 * shortened titles, etc. */
5845 string_ncopy(commit->title, line, strlen(line));
5846 view->line[view->lines - 1].dirty = 1;
5853 main_request(struct view *view, enum request request, struct line *line)
5855 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5859 open_view(view, REQ_VIEW_DIFF, flags);
5863 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5873 grep_refs(struct ref **refs, regex_t *regex)
5881 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5883 } while (refs[i++]->next);
5889 main_grep(struct view *view, struct line *line)
5891 struct commit *commit = line->data;
5892 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5893 char buf[DATE_COLS + 1];
5896 for (state = S_TITLE; state < S_END; state++) {
5900 case S_TITLE: text = commit->title; break;
5904 text = commit->author;
5909 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5916 if (grep_refs(commit->refs, view->regex) == TRUE)
5923 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5931 main_select(struct view *view, struct line *line)
5933 struct commit *commit = line->data;
5935 string_copy_rev(view->ref, commit->id);
5936 string_copy_rev(ref_commit, view->ref);
5939 static struct view_ops main_ops = {
5952 * Unicode / UTF-8 handling
5954 * NOTE: Much of the following code for dealing with unicode is derived from
5955 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5956 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5959 /* I've (over)annotated a lot of code snippets because I am not entirely
5960 * confident that the approach taken by this small UTF-8 interface is correct.
5964 unicode_width(unsigned long c)
5967 (c <= 0x115f /* Hangul Jamo */
5970 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5972 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5973 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5974 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5975 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5976 || (c >= 0xffe0 && c <= 0xffe6)
5977 || (c >= 0x20000 && c <= 0x2fffd)
5978 || (c >= 0x30000 && c <= 0x3fffd)))
5982 return opt_tab_size;
5987 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5988 * Illegal bytes are set one. */
5989 static const unsigned char utf8_bytes[256] = {
5990 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5991 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5992 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5993 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5994 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,
5995 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5996 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,
5997 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,
6000 /* Decode UTF-8 multi-byte representation into a unicode character. */
6001 static inline unsigned long
6002 utf8_to_unicode(const char *string, size_t length)
6004 unsigned long unicode;
6008 unicode = string[0];
6011 unicode = (string[0] & 0x1f) << 6;
6012 unicode += (string[1] & 0x3f);
6015 unicode = (string[0] & 0x0f) << 12;
6016 unicode += ((string[1] & 0x3f) << 6);
6017 unicode += (string[2] & 0x3f);
6020 unicode = (string[0] & 0x0f) << 18;
6021 unicode += ((string[1] & 0x3f) << 12);
6022 unicode += ((string[2] & 0x3f) << 6);
6023 unicode += (string[3] & 0x3f);
6026 unicode = (string[0] & 0x0f) << 24;
6027 unicode += ((string[1] & 0x3f) << 18);
6028 unicode += ((string[2] & 0x3f) << 12);
6029 unicode += ((string[3] & 0x3f) << 6);
6030 unicode += (string[4] & 0x3f);
6033 unicode = (string[0] & 0x01) << 30;
6034 unicode += ((string[1] & 0x3f) << 24);
6035 unicode += ((string[2] & 0x3f) << 18);
6036 unicode += ((string[3] & 0x3f) << 12);
6037 unicode += ((string[4] & 0x3f) << 6);
6038 unicode += (string[5] & 0x3f);
6041 die("Invalid unicode length");
6044 /* Invalid characters could return the special 0xfffd value but NUL
6045 * should be just as good. */
6046 return unicode > 0xffff ? 0 : unicode;
6049 /* Calculates how much of string can be shown within the given maximum width
6050 * and sets trimmed parameter to non-zero value if all of string could not be
6051 * shown. If the reserve flag is TRUE, it will reserve at least one
6052 * trailing character, which can be useful when drawing a delimiter.
6054 * Returns the number of bytes to output from string to satisfy max_width. */
6056 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
6058 const char *start = string;
6059 const char *end = strchr(string, '\0');
6060 unsigned char last_bytes = 0;
6061 size_t last_ucwidth = 0;
6066 while (string < end) {
6067 int c = *(unsigned char *) string;
6068 unsigned char bytes = utf8_bytes[c];
6070 unsigned long unicode;
6072 if (string + bytes > end)
6075 /* Change representation to figure out whether
6076 * it is a single- or double-width character. */
6078 unicode = utf8_to_unicode(string, bytes);
6079 /* FIXME: Graceful handling of invalid unicode character. */
6083 ucwidth = unicode_width(unicode);
6085 if (*width > max_width) {
6088 if (reserve && *width == max_width) {
6089 string -= last_bytes;
6090 *width -= last_ucwidth;
6097 last_ucwidth = ucwidth;
6100 return string - start;
6108 /* Whether or not the curses interface has been initialized. */
6109 static bool cursed = FALSE;
6111 /* The status window is used for polling keystrokes. */
6112 static WINDOW *status_win;
6114 static bool status_empty = TRUE;
6116 /* Update status and title window. */
6118 report(const char *msg, ...)
6120 struct view *view = display[current_view];
6126 char buf[SIZEOF_STR];
6129 va_start(args, msg);
6130 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6131 buf[sizeof(buf) - 1] = 0;
6132 buf[sizeof(buf) - 2] = '.';
6133 buf[sizeof(buf) - 3] = '.';
6134 buf[sizeof(buf) - 4] = '.';
6140 if (!status_empty || *msg) {
6143 va_start(args, msg);
6145 wmove(status_win, 0, 0);
6147 vwprintw(status_win, msg, args);
6148 status_empty = FALSE;
6150 status_empty = TRUE;
6152 wclrtoeol(status_win);
6153 wrefresh(status_win);
6158 update_view_title(view);
6159 update_display_cursor(view);
6162 /* Controls when nodelay should be in effect when polling user input. */
6164 set_nonblocking_input(bool loading)
6166 static unsigned int loading_views;
6168 if ((loading == FALSE && loading_views-- == 1) ||
6169 (loading == TRUE && loading_views++ == 0))
6170 nodelay(status_win, loading);
6178 /* Initialize the curses library */
6179 if (isatty(STDIN_FILENO)) {
6180 cursed = !!initscr();
6183 /* Leave stdin and stdout alone when acting as a pager. */
6184 opt_tty = fopen("/dev/tty", "r+");
6186 die("Failed to open /dev/tty");
6187 cursed = !!newterm(NULL, opt_tty, opt_tty);
6191 die("Failed to initialize curses");
6193 nonl(); /* Tell curses not to do NL->CR/NL on output */
6194 cbreak(); /* Take input chars one at a time, no wait for \n */
6195 noecho(); /* Don't echo input */
6196 leaveok(stdscr, TRUE);
6201 getmaxyx(stdscr, y, x);
6202 status_win = newwin(1, 0, y - 1, 0);
6204 die("Failed to create status window");
6206 /* Enable keyboard mapping */
6207 keypad(status_win, TRUE);
6208 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6210 TABSIZE = opt_tab_size;
6211 if (opt_line_graphics) {
6212 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6217 get_input(bool prompting)
6226 foreach_view (view, i)
6229 /* Refresh, accept single keystroke of input */
6230 key = wgetch(status_win);
6232 /* wgetch() with nodelay() enabled returns ERR when
6233 * there's no input. */
6237 } else if (key == KEY_RESIZE) {
6240 getmaxyx(stdscr, height, width);
6242 /* Resize the status view and let the view driver take
6243 * care of resizing the displayed views. */
6245 redraw_display(TRUE);
6246 wresize(status_win, 1, width);
6247 mvwin(status_win, height - 1, 0);
6248 wrefresh(status_win);
6258 prompt_input(const char *prompt, input_handler handler, void *data)
6260 enum input_status status = INPUT_OK;
6261 static char buf[SIZEOF_STR];
6266 while (status == INPUT_OK || status == INPUT_SKIP) {
6269 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6270 wclrtoeol(status_win);
6272 key = get_input(TRUE);
6277 status = pos ? INPUT_STOP : INPUT_CANCEL;
6284 status = INPUT_CANCEL;
6288 status = INPUT_CANCEL;
6292 if (pos >= sizeof(buf)) {
6293 report("Input string too long");
6297 status = handler(data, buf, key);
6298 if (status == INPUT_OK)
6299 buf[pos++] = (char) key;
6303 /* Clear the status window */
6304 status_empty = FALSE;
6307 if (status == INPUT_CANCEL)
6315 static enum input_status
6316 prompt_yesno_handler(void *data, char *buf, int c)
6318 if (c == 'y' || c == 'Y')
6320 if (c == 'n' || c == 'N')
6321 return INPUT_CANCEL;
6326 prompt_yesno(const char *prompt)
6328 char prompt2[SIZEOF_STR];
6330 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6333 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6336 static enum input_status
6337 read_prompt_handler(void *data, char *buf, int c)
6339 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6343 read_prompt(const char *prompt)
6345 return prompt_input(prompt, read_prompt_handler, NULL);
6349 * Repository properties
6353 git_properties(const char **argv, const char *separators,
6354 int (*read_property)(char *, size_t, char *, size_t))
6358 if (init_io_rd(&io, argv, NULL, FORMAT_NONE))
6359 return read_properties(&io, separators, read_property);
6363 static struct ref *refs = NULL;
6364 static size_t refs_alloc = 0;
6365 static size_t refs_size = 0;
6367 /* Id <-> ref store */
6368 static struct ref ***id_refs = NULL;
6369 static size_t id_refs_alloc = 0;
6370 static size_t id_refs_size = 0;
6373 compare_refs(const void *ref1_, const void *ref2_)
6375 const struct ref *ref1 = *(const struct ref **)ref1_;
6376 const struct ref *ref2 = *(const struct ref **)ref2_;
6378 if (ref1->tag != ref2->tag)
6379 return ref2->tag - ref1->tag;
6380 if (ref1->ltag != ref2->ltag)
6381 return ref2->ltag - ref2->ltag;
6382 if (ref1->head != ref2->head)
6383 return ref2->head - ref1->head;
6384 if (ref1->tracked != ref2->tracked)
6385 return ref2->tracked - ref1->tracked;
6386 if (ref1->remote != ref2->remote)
6387 return ref2->remote - ref1->remote;
6388 return strcmp(ref1->name, ref2->name);
6391 static struct ref **
6392 get_refs(const char *id)
6394 struct ref ***tmp_id_refs;
6395 struct ref **ref_list = NULL;
6396 size_t ref_list_alloc = 0;
6397 size_t ref_list_size = 0;
6400 for (i = 0; i < id_refs_size; i++)
6401 if (!strcmp(id, id_refs[i][0]->id))
6404 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6409 id_refs = tmp_id_refs;
6411 for (i = 0; i < refs_size; i++) {
6414 if (strcmp(id, refs[i].id))
6417 tmp = realloc_items(ref_list, &ref_list_alloc,
6418 ref_list_size + 1, sizeof(*ref_list));
6426 ref_list[ref_list_size] = &refs[i];
6427 /* XXX: The properties of the commit chains ensures that we can
6428 * safely modify the shared ref. The repo references will
6429 * always be similar for the same id. */
6430 ref_list[ref_list_size]->next = 1;
6436 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6437 ref_list[ref_list_size - 1]->next = 0;
6438 id_refs[id_refs_size++] = ref_list;
6445 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6450 bool remote = FALSE;
6451 bool tracked = FALSE;
6452 bool check_replace = FALSE;
6455 if (!prefixcmp(name, "refs/tags/")) {
6456 if (!suffixcmp(name, namelen, "^{}")) {
6459 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6460 check_replace = TRUE;
6466 namelen -= STRING_SIZE("refs/tags/");
6467 name += STRING_SIZE("refs/tags/");
6469 } else if (!prefixcmp(name, "refs/remotes/")) {
6471 namelen -= STRING_SIZE("refs/remotes/");
6472 name += STRING_SIZE("refs/remotes/");
6473 tracked = !strcmp(opt_remote, name);
6475 } else if (!prefixcmp(name, "refs/heads/")) {
6476 namelen -= STRING_SIZE("refs/heads/");
6477 name += STRING_SIZE("refs/heads/");
6478 head = !strncmp(opt_head, name, namelen);
6480 } else if (!strcmp(name, "HEAD")) {
6481 string_ncopy(opt_head_rev, id, idlen);
6485 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6486 /* it's an annotated tag, replace the previous sha1 with the
6487 * resolved commit id; relies on the fact git-ls-remote lists
6488 * the commit id of an annotated tag right before the commit id
6490 refs[refs_size - 1].ltag = ltag;
6491 string_copy_rev(refs[refs_size - 1].id, id);
6495 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6499 ref = &refs[refs_size++];
6500 ref->name = malloc(namelen + 1);
6504 strncpy(ref->name, name, namelen);
6505 ref->name[namelen] = 0;
6509 ref->remote = remote;
6510 ref->tracked = tracked;
6511 string_copy_rev(ref->id, id);
6519 static const char *ls_remote_argv[SIZEOF_ARG] = {
6520 "git", "ls-remote", ".", NULL
6522 static bool init = FALSE;
6525 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6532 while (refs_size > 0)
6533 free(refs[--refs_size].name);
6534 while (id_refs_size > 0)
6535 free(id_refs[--id_refs_size]);
6537 return git_properties(ls_remote_argv, "\t", read_ref);
6541 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6543 if (!strcmp(name, "i18n.commitencoding"))
6544 string_ncopy(opt_encoding, value, valuelen);
6546 if (!strcmp(name, "core.editor"))
6547 string_ncopy(opt_editor, value, valuelen);
6549 /* branch.<head>.remote */
6551 !strncmp(name, "branch.", 7) &&
6552 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6553 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6554 string_ncopy(opt_remote, value, valuelen);
6556 if (*opt_head && *opt_remote &&
6557 !strncmp(name, "branch.", 7) &&
6558 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6559 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6560 size_t from = strlen(opt_remote);
6562 if (!prefixcmp(value, "refs/heads/")) {
6563 value += STRING_SIZE("refs/heads/");
6564 valuelen -= STRING_SIZE("refs/heads/");
6567 if (!string_format_from(opt_remote, &from, "/%s", value))
6575 load_git_config(void)
6577 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6579 return git_properties(config_list_argv, "=", read_repo_config_option);
6583 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6585 if (!opt_git_dir[0]) {
6586 string_ncopy(opt_git_dir, name, namelen);
6588 } else if (opt_is_inside_work_tree == -1) {
6589 /* This can be 3 different values depending on the
6590 * version of git being used. If git-rev-parse does not
6591 * understand --is-inside-work-tree it will simply echo
6592 * the option else either "true" or "false" is printed.
6593 * Default to true for the unknown case. */
6594 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6596 } else if (*name == '.') {
6597 string_ncopy(opt_cdup, name, namelen);
6600 string_ncopy(opt_prefix, name, namelen);
6607 load_repo_info(void)
6609 const char *head_argv[] = {
6610 "git", "symbolic-ref", "HEAD", NULL
6612 const char *rev_parse_argv[] = {
6613 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6614 "--show-cdup", "--show-prefix", NULL
6617 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6618 chomp_string(opt_head);
6619 if (!prefixcmp(opt_head, "refs/heads/")) {
6620 char *offset = opt_head + STRING_SIZE("refs/heads/");
6622 memmove(opt_head, offset, strlen(offset) + 1);
6626 return git_properties(rev_parse_argv, "=", read_repo_info);
6630 read_properties(struct io *io, const char *separators,
6631 int (*read_property)(char *, size_t, char *, size_t))
6639 while (state == OK && (name = io_get(io, '\n', TRUE))) {
6644 name = chomp_string(name);
6645 namelen = strcspn(name, separators);
6647 if (name[namelen]) {
6649 value = chomp_string(name + namelen + 1);
6650 valuelen = strlen(value);
6657 state = read_property(name, namelen, value, valuelen);
6660 if (state != ERR && io_error(io))
6672 static void __NORETURN
6675 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6681 static void __NORETURN
6682 die(const char *err, ...)
6688 va_start(args, err);
6689 fputs("tig: ", stderr);
6690 vfprintf(stderr, err, args);
6691 fputs("\n", stderr);
6698 warn(const char *msg, ...)
6702 va_start(args, msg);
6703 fputs("tig warning: ", stderr);
6704 vfprintf(stderr, msg, args);
6705 fputs("\n", stderr);
6710 main(int argc, const char *argv[])
6712 const char **run_argv = NULL;
6714 enum request request;
6717 signal(SIGINT, quit);
6719 if (setlocale(LC_ALL, "")) {
6720 char *codeset = nl_langinfo(CODESET);
6722 string_ncopy(opt_codeset, codeset, strlen(codeset));
6725 if (load_repo_info() == ERR)
6726 die("Failed to load repo info.");
6728 if (load_options() == ERR)
6729 die("Failed to load user config.");
6731 if (load_git_config() == ERR)
6732 die("Failed to load repo config.");
6734 request = parse_options(argc, argv, &run_argv);
6735 if (request == REQ_NONE)
6738 /* Require a git repository unless when running in pager mode. */
6739 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6740 die("Not a git repository");
6742 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6745 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6746 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6747 if (opt_iconv == ICONV_NONE)
6748 die("Failed to initialize character set conversion");
6751 if (load_refs() == ERR)
6752 die("Failed to load refs.");
6754 foreach_view (view, i)
6755 argv_from_env(view->ops->argv, view->cmd_env);
6759 if (request == REQ_VIEW_PAGER || run_argv) {
6760 if (request == REQ_VIEW_PAGER)
6761 io_open(&VIEW(request)->io, "");
6762 else if (!prepare_update(VIEW(request), run_argv, NULL, FORMAT_NONE))
6763 die("Failed to format arguments");
6764 open_view(NULL, request, OPEN_PREPARED);
6768 while (view_driver(display[current_view], request)) {
6769 int key = get_input(FALSE);
6771 view = display[current_view];
6772 request = get_keybinding(view->keymap, key);
6774 /* Some low-level request handling. This keeps access to
6775 * status_win restricted. */
6779 char *cmd = read_prompt(":");
6782 struct view *next = VIEW(REQ_VIEW_PAGER);
6783 const char *argv[SIZEOF_ARG] = { "git" };
6786 /* When running random commands, initially show the
6787 * command in the title. However, it maybe later be
6788 * overwritten if a commit line is selected. */
6789 string_ncopy(next->ref, cmd, strlen(cmd));
6791 if (!argv_from_string(argv, &argc, cmd)) {
6792 report("Too many arguments");
6793 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6794 report("Failed to format command");
6796 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6804 case REQ_SEARCH_BACK:
6806 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6807 char *search = read_prompt(prompt);
6810 string_ncopy(opt_search, search, strlen(search));