1 /* Copyright (c) 2006-2009 Jonas Fonseca <fonseca@diku.dk>
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License as
5 * published by the Free Software Foundation; either version 2 of
6 * the License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
19 #define TIG_VERSION "unknown-version"
34 #include <sys/types.h>
37 #include <sys/select.h>
48 /* ncurses(3): Must be defined to have extended wide-character functions. */
49 #define _XOPEN_SOURCE_EXTENDED
51 #ifdef HAVE_NCURSESW_NCURSES_H
52 #include <ncursesw/ncurses.h>
54 #ifdef HAVE_NCURSES_NCURSES_H
55 #include <ncurses/ncurses.h>
62 #define __NORETURN __attribute__((__noreturn__))
67 static void __NORETURN die(const char *err, ...);
68 static void warn(const char *msg, ...);
69 static void report(const char *msg, ...);
70 static void set_nonblocking_input(bool loading);
71 static size_t utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve);
72 static int load_refs(void);
74 #define ABS(x) ((x) >= 0 ? (x) : -(x))
75 #define MIN(x, y) ((x) < (y) ? (x) : (y))
77 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
78 #define STRING_SIZE(x) (sizeof(x) - 1)
80 #define SIZEOF_STR 1024 /* Default string size. */
81 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
82 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL. */
83 #define SIZEOF_ARG 32 /* Default argument array size. */
87 #define REVGRAPH_INIT 'I'
88 #define REVGRAPH_MERGE 'M'
89 #define REVGRAPH_BRANCH '+'
90 #define REVGRAPH_COMMIT '*'
91 #define REVGRAPH_BOUND '^'
93 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
95 /* This color name can be used to refer to the default term colors. */
96 #define COLOR_DEFAULT (-1)
98 #define ICONV_NONE ((iconv_t) -1)
100 #define ICONV_CONST /* nothing */
103 /* The format and size of the date column in the main view. */
104 #define DATE_FORMAT "%Y-%m-%d %H:%M"
105 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
107 #define AUTHOR_COLS 20
110 /* The default interval between line numbers. */
111 #define NUMBER_INTERVAL 5
115 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
117 #define NULL_ID "0000000000000000000000000000000000000000"
120 #define GIT_CONFIG "config"
123 /* Some ascii-shorthands fitted into the ncurses namespace. */
125 #define KEY_RETURN '\r'
130 char *name; /* Ref name; tag or head names are shortened. */
131 char id[SIZEOF_REV]; /* Commit SHA1 ID */
132 unsigned int head:1; /* Is it the current HEAD? */
133 unsigned int tag:1; /* Is it a tag? */
134 unsigned int ltag:1; /* If so, is the tag local? */
135 unsigned int remote:1; /* Is it a remote ref? */
136 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
137 unsigned int next:1; /* For ref lists: are there more refs? */
140 static struct ref **get_refs(const char *id);
143 FORMAT_ALL, /* Perform replacement in all arguments. */
144 FORMAT_DASH, /* Perform replacement up until "--". */
145 FORMAT_NONE /* No replacement should be performed. */
148 static bool format_argv(const char *dst[], const char *src[], enum format_flags flags);
157 set_from_int_map(struct int_map *map, size_t map_size,
158 int *value, const char *name, int namelen)
163 for (i = 0; i < map_size; i++)
164 if (namelen == map[i].namelen &&
165 !strncasecmp(name, map[i].name, namelen)) {
166 *value = map[i].value;
180 typedef enum input_status (*input_handler)(void *data, char *buf, int c);
182 static char *prompt_input(const char *prompt, input_handler handler, void *data);
183 static bool prompt_yesno(const char *prompt);
190 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
192 if (srclen > dstlen - 1)
195 strncpy(dst, src, srclen);
199 /* Shorthands for safely copying into a fixed buffer. */
201 #define string_copy(dst, src) \
202 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
204 #define string_ncopy(dst, src, srclen) \
205 string_ncopy_do(dst, sizeof(dst), src, srclen)
207 #define string_copy_rev(dst, src) \
208 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
210 #define string_add(dst, from, src) \
211 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
214 chomp_string(char *name)
218 while (isspace(*name))
221 namelen = strlen(name) - 1;
222 while (namelen > 0 && isspace(name[namelen]))
229 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
232 size_t pos = bufpos ? *bufpos : 0;
235 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
241 return pos >= bufsize ? FALSE : TRUE;
244 #define string_format(buf, fmt, args...) \
245 string_nformat(buf, sizeof(buf), NULL, fmt, args)
247 #define string_format_from(buf, from, fmt, args...) \
248 string_nformat(buf, sizeof(buf), from, fmt, args)
251 string_enum_compare(const char *str1, const char *str2, int len)
255 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
257 /* Diff-Header == DIFF_HEADER */
258 for (i = 0; i < len; i++) {
259 if (toupper(str1[i]) == toupper(str2[i]))
262 if (string_enum_sep(str1[i]) &&
263 string_enum_sep(str2[i]))
266 return str1[i] - str2[i];
272 #define prefixcmp(str1, str2) \
273 strncmp(str1, str2, STRING_SIZE(str2))
276 suffixcmp(const char *str, int slen, const char *suffix)
278 size_t len = slen >= 0 ? slen : strlen(str);
279 size_t suffixlen = strlen(suffix);
281 return suffixlen < len ? strcmp(str + len - suffixlen, suffix) : -1;
286 argv_from_string(const char *argv[SIZEOF_ARG], int *argc, char *cmd)
290 while (*cmd && *argc < SIZEOF_ARG && (valuelen = strcspn(cmd, " \t"))) {
291 bool advance = cmd[valuelen] != 0;
294 argv[(*argc)++] = chomp_string(cmd);
295 cmd += valuelen + advance;
298 if (*argc < SIZEOF_ARG)
300 return *argc < SIZEOF_ARG;
304 argv_from_env(const char **argv, const char *name)
306 char *env = argv ? getenv(name) : NULL;
311 if (env && !argv_from_string(argv, &argc, env))
312 die("Too many arguments in the `%s` environment variable", name);
317 * Executing external commands.
321 IO_FD, /* File descriptor based IO. */
322 IO_BG, /* Execute command in the background. */
323 IO_FG, /* Execute command with same std{in,out,err}. */
324 IO_RD, /* Read only fork+exec IO. */
325 IO_WR, /* Write only fork+exec IO. */
326 IO_AP, /* Append fork+exec output to file. */
330 enum io_type type; /* The requested type of pipe. */
331 const char *dir; /* Directory from which to execute. */
332 pid_t pid; /* Pipe for reading or writing. */
333 int pipe; /* Pipe end for reading or writing. */
334 int error; /* Error status. */
335 const char *argv[SIZEOF_ARG]; /* Shell command arguments. */
336 char *buf; /* Read buffer. */
337 size_t bufalloc; /* Allocated buffer size. */
338 size_t bufsize; /* Buffer content size. */
339 char *bufpos; /* Current buffer position. */
340 unsigned int eof:1; /* Has end of file been reached. */
344 reset_io(struct io *io)
348 io->buf = io->bufpos = NULL;
349 io->bufalloc = io->bufsize = 0;
355 init_io(struct io *io, const char *dir, enum io_type type)
363 init_io_rd(struct io *io, const char *argv[], const char *dir,
364 enum format_flags flags)
366 init_io(io, dir, IO_RD);
367 return format_argv(io->argv, argv, flags);
371 io_open(struct io *io, const char *name)
373 init_io(io, NULL, IO_FD);
374 io->pipe = *name ? open(name, O_RDONLY) : STDIN_FILENO;
375 return io->pipe != -1;
379 kill_io(struct io *io)
381 return io->pid == 0 || kill(io->pid, SIGKILL) != -1;
385 done_io(struct io *io)
396 pid_t waiting = waitpid(pid, &status, 0);
401 report("waitpid failed (%s)", strerror(errno));
405 return waiting == pid &&
406 !WIFSIGNALED(status) &&
408 !WEXITSTATUS(status);
415 start_io(struct io *io)
417 int pipefds[2] = { -1, -1 };
419 if (io->type == IO_FD)
422 if ((io->type == IO_RD || io->type == IO_WR) &&
425 else if (io->type == IO_AP)
426 pipefds[1] = io->pipe;
428 if ((io->pid = fork())) {
429 if (pipefds[!(io->type == IO_WR)] != -1)
430 close(pipefds[!(io->type == IO_WR)]);
432 io->pipe = pipefds[!!(io->type == IO_WR)];
437 if (io->type != IO_FG) {
438 int devnull = open("/dev/null", O_RDWR);
439 int readfd = io->type == IO_WR ? pipefds[0] : devnull;
440 int writefd = (io->type == IO_RD || io->type == IO_AP)
441 ? pipefds[1] : devnull;
443 dup2(readfd, STDIN_FILENO);
444 dup2(writefd, STDOUT_FILENO);
445 dup2(devnull, STDERR_FILENO);
448 if (pipefds[0] != -1)
450 if (pipefds[1] != -1)
454 if (io->dir && *io->dir && chdir(io->dir) == -1)
455 die("Failed to change directory: %s", strerror(errno));
457 execvp(io->argv[0], (char *const*) io->argv);
458 die("Failed to execute program: %s", strerror(errno));
461 if (pipefds[!!(io->type == IO_WR)] != -1)
462 close(pipefds[!!(io->type == IO_WR)]);
467 run_io(struct io *io, const char **argv, const char *dir, enum io_type type)
469 init_io(io, dir, type);
470 if (!format_argv(io->argv, argv, FORMAT_NONE))
476 run_io_do(struct io *io)
478 return start_io(io) && done_io(io);
482 run_io_bg(const char **argv)
486 init_io(&io, NULL, IO_BG);
487 if (!format_argv(io.argv, argv, FORMAT_NONE))
489 return run_io_do(&io);
493 run_io_fg(const char **argv, const char *dir)
497 init_io(&io, dir, IO_FG);
498 if (!format_argv(io.argv, argv, FORMAT_NONE))
500 return run_io_do(&io);
504 run_io_append(const char **argv, enum format_flags flags, int fd)
508 init_io(&io, NULL, IO_AP);
510 if (format_argv(io.argv, argv, flags))
511 return run_io_do(&io);
517 run_io_rd(struct io *io, const char **argv, enum format_flags flags)
519 return init_io_rd(io, argv, NULL, flags) && start_io(io);
523 io_eof(struct io *io)
529 io_error(struct io *io)
535 io_strerror(struct io *io)
537 return strerror(io->error);
541 io_can_read(struct io *io)
543 struct timeval tv = { 0, 500 };
547 FD_SET(io->pipe, &fds);
549 return select(io->pipe + 1, &fds, NULL, NULL, &tv) > 0;
553 io_read(struct io *io, void *buf, size_t bufsize)
556 ssize_t readsize = read(io->pipe, buf, bufsize);
558 if (readsize < 0 && (errno == EAGAIN || errno == EINTR))
560 else if (readsize == -1)
562 else if (readsize == 0)
569 io_get(struct io *io, int c, bool can_read)
575 io->buf = io->bufpos = malloc(BUFSIZ);
578 io->bufalloc = BUFSIZ;
583 if (io->bufsize > 0) {
584 eol = memchr(io->bufpos, c, io->bufsize);
586 char *line = io->bufpos;
589 io->bufpos = eol + 1;
590 io->bufsize -= io->bufpos - line;
597 io->bufpos[io->bufsize] = 0;
607 if (io->bufsize > 0 && io->bufpos > io->buf)
608 memmove(io->buf, io->bufpos, io->bufsize);
610 io->bufpos = io->buf;
611 readsize = io_read(io, io->buf + io->bufsize, io->bufalloc - io->bufsize);
614 io->bufsize += readsize;
619 io_write(struct io *io, const void *buf, size_t bufsize)
623 while (!io_error(io) && written < bufsize) {
626 size = write(io->pipe, buf + written, bufsize - written);
627 if (size < 0 && (errno == EAGAIN || errno == EINTR))
635 return written == bufsize;
639 run_io_buf(const char **argv, char buf[], size_t bufsize)
644 if (!run_io_rd(&io, argv, FORMAT_NONE))
647 io.buf = io.bufpos = buf;
648 io.bufalloc = bufsize;
649 error = !io_get(&io, '\n', TRUE) && io_error(&io);
652 return done_io(&io) || error;
655 static int read_properties(struct io *io, const char *separators, int (*read)(char *, size_t, char *, size_t));
662 /* XXX: Keep the view request first and in sync with views[]. */ \
663 REQ_GROUP("View switching") \
664 REQ_(VIEW_MAIN, "Show main view"), \
665 REQ_(VIEW_DIFF, "Show diff view"), \
666 REQ_(VIEW_LOG, "Show log view"), \
667 REQ_(VIEW_TREE, "Show tree view"), \
668 REQ_(VIEW_BLOB, "Show blob view"), \
669 REQ_(VIEW_BLAME, "Show blame view"), \
670 REQ_(VIEW_HELP, "Show help page"), \
671 REQ_(VIEW_PAGER, "Show pager view"), \
672 REQ_(VIEW_STATUS, "Show status view"), \
673 REQ_(VIEW_STAGE, "Show stage view"), \
675 REQ_GROUP("View manipulation") \
676 REQ_(ENTER, "Enter current line and scroll"), \
677 REQ_(NEXT, "Move to next"), \
678 REQ_(PREVIOUS, "Move to previous"), \
679 REQ_(PARENT, "Move to parent"), \
680 REQ_(VIEW_NEXT, "Move focus to next view"), \
681 REQ_(REFRESH, "Reload and refresh"), \
682 REQ_(MAXIMIZE, "Maximize the current view"), \
683 REQ_(VIEW_CLOSE, "Close the current view"), \
684 REQ_(QUIT, "Close all views and quit"), \
686 REQ_GROUP("View specific requests") \
687 REQ_(STATUS_UPDATE, "Update file status"), \
688 REQ_(STATUS_REVERT, "Revert file changes"), \
689 REQ_(STATUS_MERGE, "Merge file using external tool"), \
690 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
692 REQ_GROUP("Cursor navigation") \
693 REQ_(MOVE_UP, "Move cursor one line up"), \
694 REQ_(MOVE_DOWN, "Move cursor one line down"), \
695 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
696 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
697 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
698 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
700 REQ_GROUP("Scrolling") \
701 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
702 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
703 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
704 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
706 REQ_GROUP("Searching") \
707 REQ_(SEARCH, "Search the view"), \
708 REQ_(SEARCH_BACK, "Search backwards in the view"), \
709 REQ_(FIND_NEXT, "Find next search match"), \
710 REQ_(FIND_PREV, "Find previous search match"), \
712 REQ_GROUP("Option manipulation") \
713 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
714 REQ_(TOGGLE_DATE, "Toggle date display"), \
715 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
716 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
717 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
720 REQ_(PROMPT, "Bring up the prompt"), \
721 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
722 REQ_(SHOW_VERSION, "Show version information"), \
723 REQ_(STOP_LOADING, "Stop all loading views"), \
724 REQ_(EDIT, "Open in editor"), \
725 REQ_(NONE, "Do nothing")
728 /* User action requests. */
730 #define REQ_GROUP(help)
731 #define REQ_(req, help) REQ_##req
733 /* Offset all requests to avoid conflicts with ncurses getch values. */
734 REQ_OFFSET = KEY_MAX + 1,
741 struct request_info {
742 enum request request;
748 static struct request_info req_info[] = {
749 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
750 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
757 get_request(const char *name)
759 int namelen = strlen(name);
762 for (i = 0; i < ARRAY_SIZE(req_info); i++)
763 if (req_info[i].namelen == namelen &&
764 !string_enum_compare(req_info[i].name, name, namelen))
765 return req_info[i].request;
775 static const char usage[] =
776 "tig " TIG_VERSION " (" __DATE__ ")\n"
778 "Usage: tig [options] [revs] [--] [paths]\n"
779 " or: tig show [options] [revs] [--] [paths]\n"
780 " or: tig blame [rev] path\n"
782 " or: tig < [git command output]\n"
785 " -v, --version Show version and exit\n"
786 " -h, --help Show help message and exit";
788 /* Option and state variables. */
789 static bool opt_date = TRUE;
790 static bool opt_author = TRUE;
791 static bool opt_line_number = FALSE;
792 static bool opt_line_graphics = TRUE;
793 static bool opt_rev_graph = FALSE;
794 static bool opt_show_refs = TRUE;
795 static int opt_num_interval = NUMBER_INTERVAL;
796 static int opt_tab_size = TAB_SIZE;
797 static int opt_author_cols = AUTHOR_COLS-1;
798 static char opt_path[SIZEOF_STR] = "";
799 static char opt_file[SIZEOF_STR] = "";
800 static char opt_ref[SIZEOF_REF] = "";
801 static char opt_head[SIZEOF_REF] = "";
802 static char opt_head_rev[SIZEOF_REV] = "";
803 static char opt_remote[SIZEOF_REF] = "";
804 static char opt_encoding[20] = "UTF-8";
805 static bool opt_utf8 = TRUE;
806 static char opt_codeset[20] = "UTF-8";
807 static iconv_t opt_iconv = ICONV_NONE;
808 static char opt_search[SIZEOF_STR] = "";
809 static char opt_cdup[SIZEOF_STR] = "";
810 static char opt_prefix[SIZEOF_STR] = "";
811 static char opt_git_dir[SIZEOF_STR] = "";
812 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
813 static char opt_editor[SIZEOF_STR] = "";
814 static FILE *opt_tty = NULL;
816 #define is_initial_commit() (!*opt_head_rev)
817 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || !strcmp(opt_head_rev, (rev)))
820 parse_options(int argc, const char *argv[], const char ***run_argv)
822 enum request request = REQ_VIEW_MAIN;
823 const char *subcommand;
824 bool seen_dashdash = FALSE;
825 /* XXX: This is vulnerable to the user overriding options
826 * required for the main view parser. */
827 static const char *custom_argv[SIZEOF_ARG] = {
828 "git", "log", "--no-color", "--pretty=raw", "--parents",
833 if (!isatty(STDIN_FILENO))
834 return REQ_VIEW_PAGER;
837 return REQ_VIEW_MAIN;
839 subcommand = argv[1];
840 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
841 if (!strcmp(subcommand, "-S"))
842 warn("`-S' has been deprecated; use `tig status' instead");
844 warn("ignoring arguments after `%s'", subcommand);
845 return REQ_VIEW_STATUS;
847 } else if (!strcmp(subcommand, "blame")) {
848 if (argc <= 2 || argc > 4)
849 die("invalid number of options to blame\n\n%s", usage);
853 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
857 string_ncopy(opt_file, argv[i], strlen(argv[i]));
858 return REQ_VIEW_BLAME;
860 } else if (!strcmp(subcommand, "show")) {
861 request = REQ_VIEW_DIFF;
863 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
864 request = subcommand[0] == 'l' ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
865 warn("`tig %s' has been deprecated", subcommand);
872 custom_argv[1] = subcommand;
876 for (i = 1 + !!subcommand; i < argc; i++) {
877 const char *opt = argv[i];
879 if (seen_dashdash || !strcmp(opt, "--")) {
880 seen_dashdash = TRUE;
882 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
883 printf("tig version %s\n", TIG_VERSION);
886 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
887 printf("%s\n", usage);
891 custom_argv[j++] = opt;
892 if (j >= ARRAY_SIZE(custom_argv))
893 die("command too long");
896 custom_argv[j] = NULL;
897 *run_argv = custom_argv;
904 * Line-oriented content detection.
908 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
909 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
910 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
911 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
912 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
913 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
914 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
915 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
916 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
917 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
918 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
919 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
920 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
921 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
922 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
923 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
924 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
925 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
926 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
927 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
928 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
929 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
930 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
931 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
932 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
933 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
934 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
935 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
936 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
937 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
938 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
939 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
940 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
941 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
942 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
943 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
944 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
945 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
946 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
947 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
948 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
949 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
950 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
951 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
952 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
953 LINE(TREE_PARENT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD), \
954 LINE(TREE_MODE, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
955 LINE(TREE_DIR, "", COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), \
956 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
957 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
958 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
959 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
960 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
961 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
962 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
963 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
966 #define LINE(type, line, fg, bg, attr) \
974 const char *name; /* Option name. */
975 int namelen; /* Size of option name. */
976 const char *line; /* The start of line to match. */
977 int linelen; /* Size of string to match. */
978 int fg, bg, attr; /* Color and text attributes for the lines. */
981 static struct line_info line_info[] = {
982 #define LINE(type, line, fg, bg, attr) \
983 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
988 static enum line_type
989 get_line_type(const char *line)
991 int linelen = strlen(line);
994 for (type = 0; type < ARRAY_SIZE(line_info); type++)
995 /* Case insensitive search matches Signed-off-by lines better. */
996 if (linelen >= line_info[type].linelen &&
997 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
1000 return LINE_DEFAULT;
1004 get_line_attr(enum line_type type)
1006 assert(type < ARRAY_SIZE(line_info));
1007 return COLOR_PAIR(type) | line_info[type].attr;
1010 static struct line_info *
1011 get_line_info(const char *name)
1013 size_t namelen = strlen(name);
1014 enum line_type type;
1016 for (type = 0; type < ARRAY_SIZE(line_info); type++)
1017 if (namelen == line_info[type].namelen &&
1018 !string_enum_compare(line_info[type].name, name, namelen))
1019 return &line_info[type];
1027 int default_bg = line_info[LINE_DEFAULT].bg;
1028 int default_fg = line_info[LINE_DEFAULT].fg;
1029 enum line_type type;
1033 if (assume_default_colors(default_fg, default_bg) == ERR) {
1034 default_bg = COLOR_BLACK;
1035 default_fg = COLOR_WHITE;
1038 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
1039 struct line_info *info = &line_info[type];
1040 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
1041 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
1043 init_pair(type, fg, bg);
1048 enum line_type type;
1051 unsigned int selected:1;
1052 unsigned int dirty:1;
1053 unsigned int cleareol:1;
1055 void *data; /* User data */
1065 enum request request;
1068 static struct keybinding default_keybindings[] = {
1069 /* View switching */
1070 { 'm', REQ_VIEW_MAIN },
1071 { 'd', REQ_VIEW_DIFF },
1072 { 'l', REQ_VIEW_LOG },
1073 { 't', REQ_VIEW_TREE },
1074 { 'f', REQ_VIEW_BLOB },
1075 { 'B', REQ_VIEW_BLAME },
1076 { 'p', REQ_VIEW_PAGER },
1077 { 'h', REQ_VIEW_HELP },
1078 { 'S', REQ_VIEW_STATUS },
1079 { 'c', REQ_VIEW_STAGE },
1081 /* View manipulation */
1082 { 'q', REQ_VIEW_CLOSE },
1083 { KEY_TAB, REQ_VIEW_NEXT },
1084 { KEY_RETURN, REQ_ENTER },
1085 { KEY_UP, REQ_PREVIOUS },
1086 { KEY_DOWN, REQ_NEXT },
1087 { 'R', REQ_REFRESH },
1088 { KEY_F(5), REQ_REFRESH },
1089 { 'O', REQ_MAXIMIZE },
1091 /* Cursor navigation */
1092 { 'k', REQ_MOVE_UP },
1093 { 'j', REQ_MOVE_DOWN },
1094 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1095 { KEY_END, REQ_MOVE_LAST_LINE },
1096 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1097 { ' ', REQ_MOVE_PAGE_DOWN },
1098 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1099 { 'b', REQ_MOVE_PAGE_UP },
1100 { '-', REQ_MOVE_PAGE_UP },
1103 { KEY_IC, REQ_SCROLL_LINE_UP },
1104 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1105 { 'w', REQ_SCROLL_PAGE_UP },
1106 { 's', REQ_SCROLL_PAGE_DOWN },
1109 { '/', REQ_SEARCH },
1110 { '?', REQ_SEARCH_BACK },
1111 { 'n', REQ_FIND_NEXT },
1112 { 'N', REQ_FIND_PREV },
1116 { 'z', REQ_STOP_LOADING },
1117 { 'v', REQ_SHOW_VERSION },
1118 { 'r', REQ_SCREEN_REDRAW },
1119 { '.', REQ_TOGGLE_LINENO },
1120 { 'D', REQ_TOGGLE_DATE },
1121 { 'A', REQ_TOGGLE_AUTHOR },
1122 { 'g', REQ_TOGGLE_REV_GRAPH },
1123 { 'F', REQ_TOGGLE_REFS },
1124 { ':', REQ_PROMPT },
1125 { 'u', REQ_STATUS_UPDATE },
1126 { '!', REQ_STATUS_REVERT },
1127 { 'M', REQ_STATUS_MERGE },
1128 { '@', REQ_STAGE_NEXT },
1129 { ',', REQ_PARENT },
1133 #define KEYMAP_INFO \
1147 #define KEYMAP_(name) KEYMAP_##name
1152 static struct int_map keymap_table[] = {
1153 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
1158 #define set_keymap(map, name) \
1159 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
1161 struct keybinding_table {
1162 struct keybinding *data;
1166 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1169 add_keybinding(enum keymap keymap, enum request request, int key)
1171 struct keybinding_table *table = &keybindings[keymap];
1173 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1175 die("Failed to allocate keybinding");
1176 table->data[table->size].alias = key;
1177 table->data[table->size++].request = request;
1180 /* Looks for a key binding first in the given map, then in the generic map, and
1181 * lastly in the default keybindings. */
1183 get_keybinding(enum keymap keymap, int key)
1187 for (i = 0; i < keybindings[keymap].size; i++)
1188 if (keybindings[keymap].data[i].alias == key)
1189 return keybindings[keymap].data[i].request;
1191 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1192 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1193 return keybindings[KEYMAP_GENERIC].data[i].request;
1195 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1196 if (default_keybindings[i].alias == key)
1197 return default_keybindings[i].request;
1199 return (enum request) key;
1208 static struct key key_table[] = {
1209 { "Enter", KEY_RETURN },
1211 { "Backspace", KEY_BACKSPACE },
1213 { "Escape", KEY_ESC },
1214 { "Left", KEY_LEFT },
1215 { "Right", KEY_RIGHT },
1217 { "Down", KEY_DOWN },
1218 { "Insert", KEY_IC },
1219 { "Delete", KEY_DC },
1221 { "Home", KEY_HOME },
1223 { "PageUp", KEY_PPAGE },
1224 { "PageDown", KEY_NPAGE },
1234 { "F10", KEY_F(10) },
1235 { "F11", KEY_F(11) },
1236 { "F12", KEY_F(12) },
1240 get_key_value(const char *name)
1244 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1245 if (!strcasecmp(key_table[i].name, name))
1246 return key_table[i].value;
1248 if (strlen(name) == 1 && isprint(*name))
1255 get_key_name(int key_value)
1257 static char key_char[] = "'X'";
1258 const char *seq = NULL;
1261 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1262 if (key_table[key].value == key_value)
1263 seq = key_table[key].name;
1267 isprint(key_value)) {
1268 key_char[1] = (char) key_value;
1272 return seq ? seq : "(no key)";
1276 get_key(enum request request)
1278 static char buf[BUFSIZ];
1285 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1286 struct keybinding *keybinding = &default_keybindings[i];
1288 if (keybinding->request != request)
1291 if (!string_format_from(buf, &pos, "%s%s", sep,
1292 get_key_name(keybinding->alias)))
1293 return "Too many keybindings!";
1300 struct run_request {
1303 const char *argv[SIZEOF_ARG];
1306 static struct run_request *run_request;
1307 static size_t run_requests;
1310 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1312 struct run_request *req;
1314 if (argc >= ARRAY_SIZE(req->argv) - 1)
1317 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1322 req = &run_request[run_requests];
1323 req->keymap = keymap;
1325 req->argv[0] = NULL;
1327 if (!format_argv(req->argv, argv, FORMAT_NONE))
1330 return REQ_NONE + ++run_requests;
1333 static struct run_request *
1334 get_run_request(enum request request)
1336 if (request <= REQ_NONE)
1338 return &run_request[request - REQ_NONE - 1];
1342 add_builtin_run_requests(void)
1344 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1345 const char *gc[] = { "git", "gc", NULL };
1352 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1353 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1357 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1360 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1361 if (req != REQ_NONE)
1362 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1367 * User config file handling.
1370 static struct int_map color_map[] = {
1371 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1383 #define set_color(color, name) \
1384 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1386 static struct int_map attr_map[] = {
1387 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1394 ATTR_MAP(UNDERLINE),
1397 #define set_attribute(attr, name) \
1398 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1400 static int config_lineno;
1401 static bool config_errors;
1402 static const char *config_msg;
1404 /* Wants: object fgcolor bgcolor [attr] */
1406 option_color_command(int argc, const char *argv[])
1408 struct line_info *info;
1410 if (argc != 3 && argc != 4) {
1411 config_msg = "Wrong number of arguments given to color command";
1415 info = get_line_info(argv[0]);
1417 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1418 info = get_line_info("delimiter");
1420 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1421 info = get_line_info("date");
1424 config_msg = "Unknown color name";
1429 if (set_color(&info->fg, argv[1]) == ERR ||
1430 set_color(&info->bg, argv[2]) == ERR) {
1431 config_msg = "Unknown color";
1435 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1436 config_msg = "Unknown attribute";
1443 static bool parse_bool(const char *s)
1445 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1446 !strcmp(s, "yes")) ? TRUE : FALSE;
1450 parse_int(const char *s, int default_value, int min, int max)
1452 int value = atoi(s);
1454 return (value < min || value > max) ? default_value : value;
1457 /* Wants: name = value */
1459 option_set_command(int argc, const char *argv[])
1462 config_msg = "Wrong number of arguments given to set command";
1466 if (strcmp(argv[1], "=")) {
1467 config_msg = "No value assigned";
1471 if (!strcmp(argv[0], "show-author")) {
1472 opt_author = parse_bool(argv[2]);
1476 if (!strcmp(argv[0], "show-date")) {
1477 opt_date = parse_bool(argv[2]);
1481 if (!strcmp(argv[0], "show-rev-graph")) {
1482 opt_rev_graph = parse_bool(argv[2]);
1486 if (!strcmp(argv[0], "show-refs")) {
1487 opt_show_refs = parse_bool(argv[2]);
1491 if (!strcmp(argv[0], "show-line-numbers")) {
1492 opt_line_number = parse_bool(argv[2]);
1496 if (!strcmp(argv[0], "line-graphics")) {
1497 opt_line_graphics = parse_bool(argv[2]);
1501 if (!strcmp(argv[0], "line-number-interval")) {
1502 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1506 if (!strcmp(argv[0], "author-width")) {
1507 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1511 if (!strcmp(argv[0], "tab-size")) {
1512 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1516 if (!strcmp(argv[0], "commit-encoding")) {
1517 const char *arg = argv[2];
1518 int arglen = strlen(arg);
1523 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1524 config_msg = "Unmatched quotation";
1527 arg += 1; arglen -= 2;
1529 string_ncopy(opt_encoding, arg, strlen(arg));
1534 config_msg = "Unknown variable name";
1538 /* Wants: mode request key */
1540 option_bind_command(int argc, const char *argv[])
1542 enum request request;
1547 config_msg = "Wrong number of arguments given to bind command";
1551 if (set_keymap(&keymap, argv[0]) == ERR) {
1552 config_msg = "Unknown key map";
1556 key = get_key_value(argv[1]);
1558 config_msg = "Unknown key";
1562 request = get_request(argv[2]);
1563 if (request == REQ_NONE) {
1566 enum request request;
1568 { "cherry-pick", REQ_NONE },
1569 { "screen-resize", REQ_NONE },
1570 { "tree-parent", REQ_PARENT },
1572 size_t namelen = strlen(argv[2]);
1575 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1576 if (namelen != strlen(obsolete[i].name) ||
1577 string_enum_compare(obsolete[i].name, argv[2], namelen))
1579 if (obsolete[i].request != REQ_NONE)
1580 add_keybinding(keymap, obsolete[i].request, key);
1581 config_msg = "Obsolete request name";
1585 if (request == REQ_NONE && *argv[2]++ == '!')
1586 request = add_run_request(keymap, key, argc - 2, argv + 2);
1587 if (request == REQ_NONE) {
1588 config_msg = "Unknown request name";
1592 add_keybinding(keymap, request, key);
1598 set_option(const char *opt, char *value)
1600 const char *argv[SIZEOF_ARG];
1603 if (!argv_from_string(argv, &argc, value)) {
1604 config_msg = "Too many option arguments";
1608 if (!strcmp(opt, "color"))
1609 return option_color_command(argc, argv);
1611 if (!strcmp(opt, "set"))
1612 return option_set_command(argc, argv);
1614 if (!strcmp(opt, "bind"))
1615 return option_bind_command(argc, argv);
1617 config_msg = "Unknown option command";
1622 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1627 config_msg = "Internal error";
1629 /* Check for comment markers, since read_properties() will
1630 * only ensure opt and value are split at first " \t". */
1631 optlen = strcspn(opt, "#");
1635 if (opt[optlen] != 0) {
1636 config_msg = "No option value";
1640 /* Look for comment endings in the value. */
1641 size_t len = strcspn(value, "#");
1643 if (len < valuelen) {
1645 value[valuelen] = 0;
1648 status = set_option(opt, value);
1651 if (status == ERR) {
1652 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1653 config_lineno, (int) optlen, opt, config_msg);
1654 config_errors = TRUE;
1657 /* Always keep going if errors are encountered. */
1662 load_option_file(const char *path)
1666 /* It's ok that the file doesn't exist. */
1667 if (!io_open(&io, path))
1671 config_errors = FALSE;
1673 if (read_properties(&io, " \t", read_option) == ERR ||
1674 config_errors == TRUE)
1675 fprintf(stderr, "Errors while loading %s.\n", path);
1681 const char *home = getenv("HOME");
1682 const char *tigrc_user = getenv("TIGRC_USER");
1683 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1684 char buf[SIZEOF_STR];
1686 add_builtin_run_requests();
1688 if (!tigrc_system) {
1689 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1693 load_option_file(tigrc_system);
1696 if (!home || !string_format(buf, "%s/.tigrc", home))
1700 load_option_file(tigrc_user);
1713 /* The display array of active views and the index of the current view. */
1714 static struct view *display[2];
1715 static unsigned int current_view;
1717 /* Reading from the prompt? */
1718 static bool input_mode = FALSE;
1720 #define foreach_displayed_view(view, i) \
1721 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1723 #define displayed_views() (display[1] != NULL ? 2 : 1)
1725 /* Current head and commit ID */
1726 static char ref_blob[SIZEOF_REF] = "";
1727 static char ref_commit[SIZEOF_REF] = "HEAD";
1728 static char ref_head[SIZEOF_REF] = "HEAD";
1731 const char *name; /* View name */
1732 const char *cmd_env; /* Command line set via environment */
1733 const char *id; /* Points to either of ref_{head,commit,blob} */
1735 struct view_ops *ops; /* View operations */
1737 enum keymap keymap; /* What keymap does this view have */
1738 bool git_dir; /* Whether the view requires a git directory. */
1740 char ref[SIZEOF_REF]; /* Hovered commit reference */
1741 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1743 int height, width; /* The width and height of the main window */
1744 WINDOW *win; /* The main window */
1745 WINDOW *title; /* The title window living below the main window */
1748 unsigned long offset; /* Offset of the window top */
1749 unsigned long lineno; /* Current line number */
1750 unsigned long p_offset; /* Previous offset of the window top */
1751 unsigned long p_lineno; /* Previous current line number */
1752 bool p_restore; /* Should the previous position be restored. */
1755 char grep[SIZEOF_STR]; /* Search string */
1756 regex_t *regex; /* Pre-compiled regex */
1758 /* If non-NULL, points to the view that opened this view. If this view
1759 * is closed tig will switch back to the parent view. */
1760 struct view *parent;
1763 size_t lines; /* Total number of lines */
1764 struct line *line; /* Line index */
1765 size_t line_alloc; /* Total number of allocated lines */
1766 unsigned int digits; /* Number of digits in the lines member. */
1769 struct line *curline; /* Line currently being drawn. */
1770 enum line_type curtype; /* Attribute currently used for drawing. */
1771 unsigned long col; /* Column when drawing. */
1781 /* What type of content being displayed. Used in the title bar. */
1783 /* Default command arguments. */
1785 /* Open and reads in all view content. */
1786 bool (*open)(struct view *view);
1787 /* Read one line; updates view->line. */
1788 bool (*read)(struct view *view, char *data);
1789 /* Draw one line; @lineno must be < view->height. */
1790 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1791 /* Depending on view handle a special requests. */
1792 enum request (*request)(struct view *view, enum request request, struct line *line);
1793 /* Search for regex in a line. */
1794 bool (*grep)(struct view *view, struct line *line);
1796 void (*select)(struct view *view, struct line *line);
1799 static struct view_ops blame_ops;
1800 static struct view_ops blob_ops;
1801 static struct view_ops diff_ops;
1802 static struct view_ops help_ops;
1803 static struct view_ops log_ops;
1804 static struct view_ops main_ops;
1805 static struct view_ops pager_ops;
1806 static struct view_ops stage_ops;
1807 static struct view_ops status_ops;
1808 static struct view_ops tree_ops;
1810 #define VIEW_STR(name, env, ref, ops, map, git) \
1811 { name, #env, ref, ops, map, git }
1813 #define VIEW_(id, name, ops, git, ref) \
1814 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1817 static struct view views[] = {
1818 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1819 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1820 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1821 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1822 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1823 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1824 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1825 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1826 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1827 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1830 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1831 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1833 #define foreach_view(view, i) \
1834 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1836 #define view_is_displayed(view) \
1837 (view == display[0] || view == display[1])
1844 static int line_graphics[] = {
1845 /* LINE_GRAPHIC_VLINE: */ '|'
1849 set_view_attr(struct view *view, enum line_type type)
1851 if (!view->curline->selected && view->curtype != type) {
1852 wattrset(view->win, get_line_attr(type));
1853 wchgat(view->win, -1, 0, type, NULL);
1854 view->curtype = type;
1859 draw_chars(struct view *view, enum line_type type, const char *string,
1860 int max_len, bool use_tilde)
1864 int trimmed = FALSE;
1870 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1872 col = len = strlen(string);
1873 if (len > max_len) {
1877 col = len = max_len;
1882 set_view_attr(view, type);
1883 waddnstr(view->win, string, len);
1884 if (trimmed && use_tilde) {
1885 set_view_attr(view, LINE_DELIMITER);
1886 waddch(view->win, '~');
1894 draw_space(struct view *view, enum line_type type, int max, int spaces)
1896 static char space[] = " ";
1899 spaces = MIN(max, spaces);
1901 while (spaces > 0) {
1902 int len = MIN(spaces, sizeof(space) - 1);
1904 col += draw_chars(view, type, space, spaces, FALSE);
1912 draw_lineno(struct view *view, unsigned int lineno)
1915 int digits3 = view->digits < 3 ? 3 : view->digits;
1916 int max_number = MIN(digits3, STRING_SIZE(number));
1917 int max = view->width - view->col;
1920 if (max < max_number)
1923 lineno += view->offset + 1;
1924 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1925 static char fmt[] = "%1ld";
1927 if (view->digits <= 9)
1928 fmt[1] = '0' + digits3;
1930 if (!string_format(number, fmt, lineno))
1932 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1934 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1938 set_view_attr(view, LINE_DEFAULT);
1939 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1944 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1947 return view->width - view->col <= 0;
1951 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1953 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1954 return view->width - view->col <= 0;
1958 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1960 int max = view->width - view->col;
1966 set_view_attr(view, type);
1967 /* Using waddch() instead of waddnstr() ensures that
1968 * they'll be rendered correctly for the cursor line. */
1969 for (i = 0; i < size; i++)
1970 waddch(view->win, graphic[i]);
1974 waddch(view->win, ' ');
1978 return view->width - view->col <= 0;
1982 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1984 int max = MIN(view->width - view->col, len);
1988 col = draw_chars(view, type, text, max - 1, trim);
1990 col = draw_space(view, type, max - 1, max - 1);
1992 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1993 return view->width - view->col <= 0;
1997 draw_date(struct view *view, struct tm *time)
1999 char buf[DATE_COLS];
2004 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
2005 date = timelen ? buf : NULL;
2007 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
2011 draw_view_line(struct view *view, unsigned int lineno)
2014 bool selected = (view->offset + lineno == view->lineno);
2016 assert(view_is_displayed(view));
2018 if (view->offset + lineno >= view->lines)
2021 line = &view->line[view->offset + lineno];
2023 wmove(view->win, lineno, 0);
2025 wclrtoeol(view->win);
2027 view->curline = line;
2028 view->curtype = LINE_NONE;
2029 line->selected = FALSE;
2030 line->dirty = line->cleareol = 0;
2033 set_view_attr(view, LINE_CURSOR);
2034 line->selected = TRUE;
2035 view->ops->select(view, line);
2038 return view->ops->draw(view, line, lineno);
2042 redraw_view_dirty(struct view *view)
2047 for (lineno = 0; lineno < view->height; lineno++) {
2048 if (view->offset + lineno >= view->lines)
2050 if (!view->line[view->offset + lineno].dirty)
2053 if (!draw_view_line(view, lineno))
2060 wnoutrefresh(view->win);
2062 wrefresh(view->win);
2066 redraw_view_from(struct view *view, int lineno)
2068 assert(0 <= lineno && lineno < view->height);
2070 for (; lineno < view->height; lineno++) {
2071 if (!draw_view_line(view, lineno))
2076 wnoutrefresh(view->win);
2078 wrefresh(view->win);
2082 redraw_view(struct view *view)
2085 redraw_view_from(view, 0);
2090 update_display_cursor(struct view *view)
2092 /* Move the cursor to the right-most column of the cursor line.
2094 * XXX: This could turn out to be a bit expensive, but it ensures that
2095 * the cursor does not jump around. */
2097 wmove(view->win, view->lineno - view->offset, view->width - 1);
2098 wrefresh(view->win);
2103 update_view_title(struct view *view)
2105 char buf[SIZEOF_STR];
2106 char state[SIZEOF_STR];
2107 size_t bufpos = 0, statelen = 0;
2109 assert(view_is_displayed(view));
2111 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2112 unsigned int view_lines = view->offset + view->height;
2113 unsigned int lines = view->lines
2114 ? MIN(view_lines, view->lines) * 100 / view->lines
2117 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2126 time_t secs = time(NULL) - view->start_time;
2128 /* Three git seconds are a long time ... */
2130 string_format_from(state, &statelen, " loading %lds", secs);
2133 string_format_from(buf, &bufpos, "[%s]", view->name);
2134 if (*view->ref && bufpos < view->width) {
2135 size_t refsize = strlen(view->ref);
2136 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2138 if (minsize < view->width)
2139 refsize = view->width - minsize + 7;
2140 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2143 if (statelen && bufpos < view->width) {
2144 string_format_from(buf, &bufpos, "%s", state);
2147 if (view == display[current_view])
2148 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2150 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2152 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2153 wclrtoeol(view->title);
2154 wmove(view->title, 0, view->width - 1);
2157 wnoutrefresh(view->title);
2159 wrefresh(view->title);
2163 resize_display(void)
2166 struct view *base = display[0];
2167 struct view *view = display[1] ? display[1] : display[0];
2169 /* Setup window dimensions */
2171 getmaxyx(stdscr, base->height, base->width);
2173 /* Make room for the status window. */
2177 /* Horizontal split. */
2178 view->width = base->width;
2179 view->height = SCALE_SPLIT_VIEW(base->height);
2180 base->height -= view->height;
2182 /* Make room for the title bar. */
2186 /* Make room for the title bar. */
2191 foreach_displayed_view (view, i) {
2193 view->win = newwin(view->height, 0, offset, 0);
2195 die("Failed to create %s view", view->name);
2197 scrollok(view->win, FALSE);
2199 view->title = newwin(1, 0, offset + view->height, 0);
2201 die("Failed to create title window");
2204 wresize(view->win, view->height, view->width);
2205 mvwin(view->win, offset, 0);
2206 mvwin(view->title, offset + view->height, 0);
2209 offset += view->height + 1;
2214 redraw_display(bool clear)
2219 foreach_displayed_view (view, i) {
2223 update_view_title(view);
2226 if (display[current_view])
2227 update_display_cursor(display[current_view]);
2231 toggle_view_option(bool *option, const char *help)
2234 redraw_display(FALSE);
2235 report("%sabling %s", *option ? "En" : "Dis", help);
2242 /* Scrolling backend */
2244 do_scroll_view(struct view *view, int lines)
2246 bool redraw_current_line = FALSE;
2248 /* The rendering expects the new offset. */
2249 view->offset += lines;
2251 assert(0 <= view->offset && view->offset < view->lines);
2254 /* Move current line into the view. */
2255 if (view->lineno < view->offset) {
2256 view->lineno = view->offset;
2257 redraw_current_line = TRUE;
2258 } else if (view->lineno >= view->offset + view->height) {
2259 view->lineno = view->offset + view->height - 1;
2260 redraw_current_line = TRUE;
2263 assert(view->offset <= view->lineno && view->lineno < view->lines);
2265 /* Redraw the whole screen if scrolling is pointless. */
2266 if (view->height < ABS(lines)) {
2270 int line = lines > 0 ? view->height - lines : 0;
2271 int end = line + ABS(lines);
2273 scrollok(view->win, TRUE);
2274 wscrl(view->win, lines);
2275 scrollok(view->win, FALSE);
2277 for (; line < end; line++) {
2278 if (!draw_view_line(view, line))
2282 if (redraw_current_line)
2283 draw_view_line(view, view->lineno - view->offset);
2286 wrefresh(view->win);
2290 /* Scroll frontend */
2292 scroll_view(struct view *view, enum request request)
2296 assert(view_is_displayed(view));
2299 case REQ_SCROLL_PAGE_DOWN:
2300 lines = view->height;
2301 case REQ_SCROLL_LINE_DOWN:
2302 if (view->offset + lines > view->lines)
2303 lines = view->lines - view->offset;
2305 if (lines == 0 || view->offset + view->height >= view->lines) {
2306 report("Cannot scroll beyond the last line");
2311 case REQ_SCROLL_PAGE_UP:
2312 lines = view->height;
2313 case REQ_SCROLL_LINE_UP:
2314 if (lines > view->offset)
2315 lines = view->offset;
2318 report("Cannot scroll beyond the first line");
2326 die("request %d not handled in switch", request);
2329 do_scroll_view(view, lines);
2334 move_view(struct view *view, enum request request)
2336 int scroll_steps = 0;
2340 case REQ_MOVE_FIRST_LINE:
2341 steps = -view->lineno;
2344 case REQ_MOVE_LAST_LINE:
2345 steps = view->lines - view->lineno - 1;
2348 case REQ_MOVE_PAGE_UP:
2349 steps = view->height > view->lineno
2350 ? -view->lineno : -view->height;
2353 case REQ_MOVE_PAGE_DOWN:
2354 steps = view->lineno + view->height >= view->lines
2355 ? view->lines - view->lineno - 1 : view->height;
2367 die("request %d not handled in switch", request);
2370 if (steps <= 0 && view->lineno == 0) {
2371 report("Cannot move beyond the first line");
2374 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2375 report("Cannot move beyond the last line");
2379 /* Move the current line */
2380 view->lineno += steps;
2381 assert(0 <= view->lineno && view->lineno < view->lines);
2383 /* Check whether the view needs to be scrolled */
2384 if (view->lineno < view->offset ||
2385 view->lineno >= view->offset + view->height) {
2386 scroll_steps = steps;
2387 if (steps < 0 && -steps > view->offset) {
2388 scroll_steps = -view->offset;
2390 } else if (steps > 0) {
2391 if (view->lineno == view->lines - 1 &&
2392 view->lines > view->height) {
2393 scroll_steps = view->lines - view->offset - 1;
2394 if (scroll_steps >= view->height)
2395 scroll_steps -= view->height - 1;
2400 if (!view_is_displayed(view)) {
2401 view->offset += scroll_steps;
2402 assert(0 <= view->offset && view->offset < view->lines);
2403 view->ops->select(view, &view->line[view->lineno]);
2407 /* Repaint the old "current" line if we be scrolling */
2408 if (ABS(steps) < view->height)
2409 draw_view_line(view, view->lineno - steps - view->offset);
2412 do_scroll_view(view, scroll_steps);
2416 /* Draw the current line */
2417 draw_view_line(view, view->lineno - view->offset);
2419 wrefresh(view->win);
2428 static void search_view(struct view *view, enum request request);
2431 select_view_line(struct view *view, unsigned long lineno)
2433 if (lineno - view->offset >= view->height) {
2434 view->offset = lineno;
2435 view->lineno = lineno;
2436 if (view_is_displayed(view))
2440 unsigned long old_lineno = view->lineno - view->offset;
2442 view->lineno = lineno;
2443 if (view_is_displayed(view)) {
2444 draw_view_line(view, old_lineno);
2445 draw_view_line(view, view->lineno - view->offset);
2446 wrefresh(view->win);
2448 view->ops->select(view, &view->line[view->lineno]);
2454 find_next(struct view *view, enum request request)
2456 unsigned long lineno = view->lineno;
2461 report("No previous search");
2463 search_view(view, request);
2473 case REQ_SEARCH_BACK:
2482 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2483 lineno += direction;
2485 /* Note, lineno is unsigned long so will wrap around in which case it
2486 * will become bigger than view->lines. */
2487 for (; lineno < view->lines; lineno += direction) {
2488 if (view->ops->grep(view, &view->line[lineno])) {
2489 select_view_line(view, lineno);
2490 report("Line %ld matches '%s'", lineno + 1, view->grep);
2495 report("No match found for '%s'", view->grep);
2499 search_view(struct view *view, enum request request)
2504 regfree(view->regex);
2507 view->regex = calloc(1, sizeof(*view->regex));
2512 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2513 if (regex_err != 0) {
2514 char buf[SIZEOF_STR] = "unknown error";
2516 regerror(regex_err, view->regex, buf, sizeof(buf));
2517 report("Search failed: %s", buf);
2521 string_copy(view->grep, opt_search);
2523 find_next(view, request);
2527 * Incremental updating
2531 reset_view(struct view *view)
2535 for (i = 0; i < view->lines; i++)
2536 free(view->line[i].data);
2539 view->p_offset = view->offset;
2540 view->p_lineno = view->lineno;
2546 view->line_alloc = 0;
2548 view->update_secs = 0;
2552 free_argv(const char *argv[])
2556 for (argc = 0; argv[argc]; argc++)
2557 free((void *) argv[argc]);
2561 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2563 char buf[SIZEOF_STR];
2565 bool noreplace = flags == FORMAT_NONE;
2567 free_argv(dst_argv);
2569 for (argc = 0; src_argv[argc]; argc++) {
2570 const char *arg = src_argv[argc];
2574 char *next = strstr(arg, "%(");
2575 int len = next - arg;
2578 if (!next || noreplace) {
2579 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2584 } else if (!prefixcmp(next, "%(directory)")) {
2587 } else if (!prefixcmp(next, "%(file)")) {
2590 } else if (!prefixcmp(next, "%(ref)")) {
2591 value = *opt_ref ? opt_ref : "HEAD";
2593 } else if (!prefixcmp(next, "%(head)")) {
2596 } else if (!prefixcmp(next, "%(commit)")) {
2599 } else if (!prefixcmp(next, "%(blob)")) {
2603 report("Unknown replacement: `%s`", next);
2607 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2610 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2613 dst_argv[argc] = strdup(buf);
2614 if (!dst_argv[argc])
2618 dst_argv[argc] = NULL;
2620 return src_argv[argc] == NULL;
2624 restore_view_position(struct view *view)
2626 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2629 /* Changing the view position cancels the restoring. */
2630 /* FIXME: Changing back to the first line is not detected. */
2631 if (view->offset != 0 || view->lineno != 0) {
2632 view->p_restore = FALSE;
2636 if (view->p_lineno >= view->lines) {
2637 view->p_lineno = view->lines > 0 ? view->lines - 1 : 0;
2638 if (view->p_offset >= view->p_lineno) {
2639 unsigned long half = view->height / 2;
2641 if (view->p_lineno > half)
2642 view->p_offset = view->p_lineno - half;
2648 if (view_is_displayed(view) &&
2649 view->offset != view->p_offset &&
2650 view->lineno != view->p_lineno)
2653 view->offset = view->p_offset;
2654 view->lineno = view->p_lineno;
2655 view->p_restore = FALSE;
2661 end_update(struct view *view, bool force)
2665 while (!view->ops->read(view, NULL))
2668 set_nonblocking_input(FALSE);
2670 kill_io(view->pipe);
2671 done_io(view->pipe);
2676 setup_update(struct view *view, const char *vid)
2678 set_nonblocking_input(TRUE);
2680 string_copy_rev(view->vid, vid);
2681 view->pipe = &view->io;
2682 view->start_time = time(NULL);
2686 prepare_update(struct view *view, const char *argv[], const char *dir,
2687 enum format_flags flags)
2690 end_update(view, TRUE);
2691 return init_io_rd(&view->io, argv, dir, flags);
2695 prepare_update_file(struct view *view, const char *name)
2698 end_update(view, TRUE);
2699 return io_open(&view->io, name);
2703 begin_update(struct view *view, bool refresh)
2706 end_update(view, TRUE);
2709 if (!start_io(&view->io))
2713 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2716 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2719 /* Put the current ref_* value to the view title ref
2720 * member. This is needed by the blob view. Most other
2721 * views sets it automatically after loading because the
2722 * first line is a commit line. */
2723 string_copy_rev(view->ref, view->id);
2726 setup_update(view, view->id);
2731 #define ITEM_CHUNK_SIZE 256
2733 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2735 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2736 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2738 if (mem == NULL || num_chunks != num_chunks_new) {
2739 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2740 mem = realloc(mem, *size * item_size);
2746 static struct line *
2747 realloc_lines(struct view *view, size_t line_size)
2749 size_t alloc = view->line_alloc;
2750 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2751 sizeof(*view->line));
2757 view->line_alloc = alloc;
2762 update_view(struct view *view)
2764 char out_buffer[BUFSIZ * 2];
2766 /* Clear the view and redraw everything since the tree sorting
2767 * might have rearranged things. */
2768 bool redraw = view->lines == 0;
2769 bool can_read = TRUE;
2774 if (!io_can_read(view->pipe)) {
2775 if (view->lines == 0) {
2776 time_t secs = time(NULL) - view->start_time;
2778 if (secs > view->update_secs) {
2779 if (view->update_secs == 0)
2781 update_view_title(view);
2782 view->update_secs = secs;
2788 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2789 if (opt_iconv != ICONV_NONE) {
2790 ICONV_CONST char *inbuf = line;
2791 size_t inlen = strlen(line) + 1;
2793 char *outbuf = out_buffer;
2794 size_t outlen = sizeof(out_buffer);
2798 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2799 if (ret != (size_t) -1)
2803 if (!view->ops->read(view, line)) {
2804 report("Allocation failure");
2805 end_update(view, TRUE);
2811 unsigned long lines = view->lines;
2814 for (digits = 0; lines; digits++)
2817 /* Keep the displayed view in sync with line number scaling. */
2818 if (digits != view->digits) {
2819 view->digits = digits;
2820 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2825 if (io_error(view->pipe)) {
2826 report("Failed to read: %s", io_strerror(view->pipe));
2827 end_update(view, TRUE);
2829 } else if (io_eof(view->pipe)) {
2831 end_update(view, FALSE);
2834 if (restore_view_position(view))
2837 if (!view_is_displayed(view))
2841 redraw_view_from(view, 0);
2843 redraw_view_dirty(view);
2845 /* Update the title _after_ the redraw so that if the redraw picks up a
2846 * commit reference in view->ref it'll be available here. */
2847 update_view_title(view);
2848 update_display_cursor(view);
2852 static struct line *
2853 add_line_data(struct view *view, void *data, enum line_type type)
2857 if (!realloc_lines(view, view->lines + 1))
2860 line = &view->line[view->lines++];
2861 memset(line, 0, sizeof(*line));
2869 static struct line *
2870 add_line_text(struct view *view, const char *text, enum line_type type)
2872 char *data = text ? strdup(text) : NULL;
2874 return data ? add_line_data(view, data, type) : NULL;
2877 static struct line *
2878 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2880 char buf[SIZEOF_STR];
2883 va_start(args, fmt);
2884 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2888 return buf[0] ? add_line_text(view, buf, type) : NULL;
2896 OPEN_DEFAULT = 0, /* Use default view switching. */
2897 OPEN_SPLIT = 1, /* Split current view. */
2898 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2899 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2900 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2901 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2902 OPEN_PREPARED = 32, /* Open already prepared command. */
2906 open_view(struct view *prev, enum request request, enum open_flags flags)
2908 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2909 bool split = !!(flags & OPEN_SPLIT);
2910 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2911 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2912 struct view *view = VIEW(request);
2913 int nviews = displayed_views();
2914 struct view *base_view = display[0];
2916 if (view == prev && nviews == 1 && !reload) {
2917 report("Already in %s view", view->name);
2921 if (view->git_dir && !opt_git_dir[0]) {
2922 report("The %s view is disabled in pager view", view->name);
2930 } else if (!nomaximize) {
2931 /* Maximize the current view. */
2932 memset(display, 0, sizeof(display));
2934 display[current_view] = view;
2937 /* Resize the view when switching between split- and full-screen,
2938 * or when switching between two different full-screen views. */
2939 if (nviews != displayed_views() ||
2940 (nviews == 1 && base_view != display[0]))
2943 if (view->ops->open) {
2945 end_update(view, TRUE);
2946 if (!view->ops->open(view)) {
2947 report("Failed to load %s view", view->name);
2950 restore_view_position(view);
2952 } else if ((reload || strcmp(view->vid, view->id)) &&
2953 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2954 report("Failed to load %s view", view->name);
2958 if (split && prev->lineno - prev->offset >= prev->height) {
2959 /* Take the title line into account. */
2960 int lines = prev->lineno - prev->offset - prev->height + 1;
2962 /* Scroll the view that was split if the current line is
2963 * outside the new limited view. */
2964 do_scroll_view(prev, lines);
2967 if (prev && view != prev) {
2968 if (split && !backgrounded) {
2969 /* "Blur" the previous view. */
2970 update_view_title(prev);
2973 view->parent = prev;
2976 if (view->pipe && view->lines == 0) {
2977 /* Clear the old view and let the incremental updating refill
2980 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
2982 } else if (view_is_displayed(view)) {
2987 /* If the view is backgrounded the above calls to report()
2988 * won't redraw the view title. */
2990 update_view_title(view);
2994 open_external_viewer(const char *argv[], const char *dir)
2996 def_prog_mode(); /* save current tty modes */
2997 endwin(); /* restore original tty modes */
2998 run_io_fg(argv, dir);
2999 fprintf(stderr, "Press Enter to continue");
3002 redraw_display(TRUE);
3006 open_mergetool(const char *file)
3008 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
3010 open_external_viewer(mergetool_argv, opt_cdup);
3014 open_editor(bool from_root, const char *file)
3016 const char *editor_argv[] = { "vi", file, NULL };
3019 editor = getenv("GIT_EDITOR");
3020 if (!editor && *opt_editor)
3021 editor = opt_editor;
3023 editor = getenv("VISUAL");
3025 editor = getenv("EDITOR");
3029 editor_argv[0] = editor;
3030 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3034 open_run_request(enum request request)
3036 struct run_request *req = get_run_request(request);
3037 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3040 report("Unknown run request");
3044 if (format_argv(argv, req->argv, FORMAT_ALL))
3045 open_external_viewer(argv, NULL);
3050 * User request switch noodle
3054 view_driver(struct view *view, enum request request)
3058 if (request == REQ_NONE) {
3063 if (request > REQ_NONE) {
3064 open_run_request(request);
3065 /* FIXME: When all views can refresh always do this. */
3066 if (view == VIEW(REQ_VIEW_STATUS) ||
3067 view == VIEW(REQ_VIEW_MAIN) ||
3068 view == VIEW(REQ_VIEW_LOG) ||
3069 view == VIEW(REQ_VIEW_STAGE))
3070 request = REQ_REFRESH;
3075 if (view && view->lines) {
3076 request = view->ops->request(view, request, &view->line[view->lineno]);
3077 if (request == REQ_NONE)
3084 case REQ_MOVE_PAGE_UP:
3085 case REQ_MOVE_PAGE_DOWN:
3086 case REQ_MOVE_FIRST_LINE:
3087 case REQ_MOVE_LAST_LINE:
3088 move_view(view, request);
3091 case REQ_SCROLL_LINE_DOWN:
3092 case REQ_SCROLL_LINE_UP:
3093 case REQ_SCROLL_PAGE_DOWN:
3094 case REQ_SCROLL_PAGE_UP:
3095 scroll_view(view, request);
3098 case REQ_VIEW_BLAME:
3100 report("No file chosen, press %s to open tree view",
3101 get_key(REQ_VIEW_TREE));
3104 open_view(view, request, OPEN_DEFAULT);
3109 report("No file chosen, press %s to open tree view",
3110 get_key(REQ_VIEW_TREE));
3113 open_view(view, request, OPEN_DEFAULT);
3116 case REQ_VIEW_PAGER:
3117 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3118 report("No pager content, press %s to run command from prompt",
3119 get_key(REQ_PROMPT));
3122 open_view(view, request, OPEN_DEFAULT);
3125 case REQ_VIEW_STAGE:
3126 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3127 report("No stage content, press %s to open the status view and choose file",
3128 get_key(REQ_VIEW_STATUS));
3131 open_view(view, request, OPEN_DEFAULT);
3134 case REQ_VIEW_STATUS:
3135 if (opt_is_inside_work_tree == FALSE) {
3136 report("The status view requires a working tree");
3139 open_view(view, request, OPEN_DEFAULT);
3147 open_view(view, request, OPEN_DEFAULT);
3152 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3154 if ((view == VIEW(REQ_VIEW_DIFF) &&
3155 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3156 (view == VIEW(REQ_VIEW_DIFF) &&
3157 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3158 (view == VIEW(REQ_VIEW_STAGE) &&
3159 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3160 (view == VIEW(REQ_VIEW_BLOB) &&
3161 view->parent == VIEW(REQ_VIEW_TREE))) {
3164 view = view->parent;
3165 line = view->lineno;
3166 move_view(view, request);
3167 if (view_is_displayed(view))
3168 update_view_title(view);
3169 if (line != view->lineno)
3170 view->ops->request(view, REQ_ENTER,
3171 &view->line[view->lineno]);
3174 move_view(view, request);
3180 int nviews = displayed_views();
3181 int next_view = (current_view + 1) % nviews;
3183 if (next_view == current_view) {
3184 report("Only one view is displayed");
3188 current_view = next_view;
3189 /* Blur out the title of the previous view. */
3190 update_view_title(view);
3195 report("Refreshing is not yet supported for the %s view", view->name);
3199 if (displayed_views() == 2)
3200 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3203 case REQ_TOGGLE_LINENO:
3204 toggle_view_option(&opt_line_number, "line numbers");
3207 case REQ_TOGGLE_DATE:
3208 toggle_view_option(&opt_date, "date display");
3211 case REQ_TOGGLE_AUTHOR:
3212 toggle_view_option(&opt_author, "author display");
3215 case REQ_TOGGLE_REV_GRAPH:
3216 toggle_view_option(&opt_rev_graph, "revision graph display");
3219 case REQ_TOGGLE_REFS:
3220 toggle_view_option(&opt_show_refs, "reference display");
3224 case REQ_SEARCH_BACK:
3225 search_view(view, request);
3230 find_next(view, request);
3233 case REQ_STOP_LOADING:
3234 for (i = 0; i < ARRAY_SIZE(views); i++) {
3237 report("Stopped loading the %s view", view->name),
3238 end_update(view, TRUE);
3242 case REQ_SHOW_VERSION:
3243 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3246 case REQ_SCREEN_REDRAW:
3247 redraw_display(TRUE);
3251 report("Nothing to edit");
3255 report("Nothing to enter");
3258 case REQ_VIEW_CLOSE:
3259 /* XXX: Mark closed views by letting view->parent point to the
3260 * view itself. Parents to closed view should never be
3263 view->parent->parent != view->parent) {
3264 memset(display, 0, sizeof(display));
3266 display[current_view] = view->parent;
3267 view->parent = view;
3269 redraw_display(FALSE);
3278 report("Unknown key, press 'h' for help");
3287 * View backend utilities
3290 /* Parse author lines where the name may be empty:
3291 * author <email@address.tld> 1138474660 +0100
3294 parse_author_line(char *ident, char *author, size_t authorsize, struct tm *tm)
3296 char *nameend = strchr(ident, '<');
3297 char *emailend = strchr(ident, '>');
3299 if (nameend && emailend)
3300 *nameend = *emailend = 0;
3301 ident = chomp_string(ident);
3304 ident = chomp_string(nameend + 1);
3309 string_ncopy_do(author, authorsize, ident, strlen(ident));
3311 /* Parse epoch and timezone */
3312 if (emailend && emailend[1] == ' ') {
3313 char *secs = emailend + 2;
3314 char *zone = strchr(secs, ' ');
3315 time_t time = (time_t) atol(secs);
3317 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
3321 tz = ('0' - zone[1]) * 60 * 60 * 10;
3322 tz += ('0' - zone[2]) * 60 * 60;
3323 tz += ('0' - zone[3]) * 60;
3324 tz += ('0' - zone[4]) * 60;
3332 gmtime_r(&time, tm);
3336 static enum input_status
3337 select_commit_parent_handler(void *data, char *buf, int c)
3339 size_t parents = *(size_t *) data;
3346 parent = atoi(buf) * 10;
3349 if (parent > parents)
3355 select_commit_parent(const char *id, char rev[SIZEOF_REV])
3357 char buf[SIZEOF_STR * 4];
3358 const char *revlist_argv[] = {
3359 "git", "rev-list", "-1", "--parents", id, NULL
3363 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3364 !*chomp_string(buf) ||
3365 (parents = (strlen(buf) / 40) - 1) < 0) {
3366 report("Failed to get parent information");
3369 } else if (parents == 0) {
3370 report("The selected commit has no parents");
3375 char prompt[SIZEOF_STR];
3378 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3380 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3383 parents = atoi(result);
3386 string_copy_rev(rev, &buf[41 * parents]);
3395 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3397 char *text = line->data;
3399 if (opt_line_number && draw_lineno(view, lineno))
3402 draw_text(view, line->type, text, TRUE);
3407 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3409 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3410 char refbuf[SIZEOF_STR];
3413 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3414 ref = chomp_string(refbuf);
3419 /* This is the only fatal call, since it can "corrupt" the buffer. */
3420 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3427 add_pager_refs(struct view *view, struct line *line)
3429 char buf[SIZEOF_STR];
3430 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3432 size_t bufpos = 0, refpos = 0;
3433 const char *sep = "Refs: ";
3434 bool is_tag = FALSE;
3436 assert(line->type == LINE_COMMIT);
3438 refs = get_refs(commit_id);
3440 if (view == VIEW(REQ_VIEW_DIFF))
3441 goto try_add_describe_ref;
3446 struct ref *ref = refs[refpos];
3447 const char *fmt = ref->tag ? "%s[%s]" :
3448 ref->remote ? "%s<%s>" : "%s%s";
3450 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3455 } while (refs[refpos++]->next);
3457 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3458 try_add_describe_ref:
3459 /* Add <tag>-g<commit_id> "fake" reference. */
3460 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3467 add_line_text(view, buf, LINE_PP_REFS);
3471 pager_read(struct view *view, char *data)
3478 line = add_line_text(view, data, get_line_type(data));
3482 if (line->type == LINE_COMMIT &&
3483 (view == VIEW(REQ_VIEW_DIFF) ||
3484 view == VIEW(REQ_VIEW_LOG)))
3485 add_pager_refs(view, line);
3491 pager_request(struct view *view, enum request request, struct line *line)
3495 if (request != REQ_ENTER)
3498 if (line->type == LINE_COMMIT &&
3499 (view == VIEW(REQ_VIEW_LOG) ||
3500 view == VIEW(REQ_VIEW_PAGER))) {
3501 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3505 /* Always scroll the view even if it was split. That way
3506 * you can use Enter to scroll through the log view and
3507 * split open each commit diff. */
3508 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3510 /* FIXME: A minor workaround. Scrolling the view will call report("")
3511 * but if we are scrolling a non-current view this won't properly
3512 * update the view title. */
3514 update_view_title(view);
3520 pager_grep(struct view *view, struct line *line)
3523 char *text = line->data;
3528 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3535 pager_select(struct view *view, struct line *line)
3537 if (line->type == LINE_COMMIT) {
3538 char *text = (char *)line->data + STRING_SIZE("commit ");
3540 if (view != VIEW(REQ_VIEW_PAGER))
3541 string_copy_rev(view->ref, text);
3542 string_copy_rev(ref_commit, text);
3546 static struct view_ops pager_ops = {
3557 static const char *log_argv[SIZEOF_ARG] = {
3558 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3562 log_request(struct view *view, enum request request, struct line *line)
3567 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3570 return pager_request(view, request, line);
3574 static struct view_ops log_ops = {
3585 static const char *diff_argv[SIZEOF_ARG] = {
3586 "git", "show", "--pretty=fuller", "--no-color", "--root",
3587 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3590 static struct view_ops diff_ops = {
3606 help_open(struct view *view)
3608 char buf[SIZEOF_STR];
3612 if (view->lines > 0)
3615 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3617 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3620 if (req_info[i].request == REQ_NONE)
3623 if (!req_info[i].request) {
3624 add_line_text(view, "", LINE_DEFAULT);
3625 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3629 key = get_key(req_info[i].request);
3631 key = "(no key defined)";
3633 for (bufpos = 0; bufpos <= req_info[i].namelen; bufpos++) {
3634 buf[bufpos] = tolower(req_info[i].name[bufpos]);
3635 if (buf[bufpos] == '_')
3639 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s",
3640 key, buf, req_info[i].help);
3644 add_line_text(view, "", LINE_DEFAULT);
3645 add_line_text(view, "External commands:", LINE_DEFAULT);
3648 for (i = 0; i < run_requests; i++) {
3649 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3656 key = get_key_name(req->key);
3658 key = "(no key defined)";
3660 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3661 if (!string_format_from(buf, &bufpos, "%s%s",
3662 argc ? " " : "", req->argv[argc]))
3665 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3666 keymap_table[req->keymap].name, key, buf);
3672 static struct view_ops help_ops = {
3688 struct tree_stack_entry {
3689 struct tree_stack_entry *prev; /* Entry below this in the stack */
3690 unsigned long lineno; /* Line number to restore */
3691 char *name; /* Position of name in opt_path */
3694 /* The top of the path stack. */
3695 static struct tree_stack_entry *tree_stack = NULL;
3696 unsigned long tree_lineno = 0;
3699 pop_tree_stack_entry(void)
3701 struct tree_stack_entry *entry = tree_stack;
3703 tree_lineno = entry->lineno;
3705 tree_stack = entry->prev;
3710 push_tree_stack_entry(const char *name, unsigned long lineno)
3712 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3713 size_t pathlen = strlen(opt_path);
3718 entry->prev = tree_stack;
3719 entry->name = opt_path + pathlen;
3722 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3723 pop_tree_stack_entry();
3727 /* Move the current line to the first tree entry. */
3729 entry->lineno = lineno;
3732 /* Parse output from git-ls-tree(1):
3734 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3735 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3736 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3737 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3740 #define SIZEOF_TREE_ATTR \
3741 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3743 #define SIZEOF_TREE_MODE \
3744 STRING_SIZE("100644 ")
3746 #define TREE_ID_OFFSET \
3747 STRING_SIZE("100644 blob ")
3750 char id[SIZEOF_REV];
3752 struct tm time; /* Date from the author ident. */
3753 char author[75]; /* Author of the commit. */
3758 tree_path(struct line *line)
3760 return ((struct tree_entry *) line->data)->name;
3765 tree_compare_entry(struct line *line1, struct line *line2)
3767 if (line1->type != line2->type)
3768 return line1->type == LINE_TREE_DIR ? -1 : 1;
3769 return strcmp(tree_path(line1), tree_path(line2));
3772 static struct line *
3773 tree_entry(struct view *view, enum line_type type, const char *path,
3774 const char *mode, const char *id)
3776 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3777 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3779 if (!entry || !line) {
3784 strncpy(entry->name, path, strlen(path));
3786 entry->mode = strtoul(mode, NULL, 8);
3788 string_copy_rev(entry->id, id);
3794 tree_read_date(struct view *view, char *text, bool *read_date)
3796 static char author_name[SIZEOF_STR];
3797 static struct tm author_time;
3799 if (!text && *read_date) {
3804 char *path = *opt_path ? opt_path : ".";
3805 /* Find next entry to process */
3806 const char *log_file[] = {
3807 "git", "log", "--no-color", "--pretty=raw",
3808 "--cc", "--raw", view->id, "--", path, NULL
3812 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3813 report("Failed to load tree data");
3817 done_io(view->pipe);
3822 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3823 parse_author_line(text + STRING_SIZE("author "),
3824 author_name, sizeof(author_name), &author_time);
3826 } else if (*text == ':') {
3828 size_t annotated = 1;
3831 pos = strchr(text, '\t');
3835 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3836 text += strlen(opt_prefix);
3837 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3838 text += strlen(opt_path);
3839 pos = strchr(text, '/');
3843 for (i = 1; i < view->lines; i++) {
3844 struct line *line = &view->line[i];
3845 struct tree_entry *entry = line->data;
3847 annotated += !!*entry->author;
3848 if (*entry->author || strcmp(entry->name, text))
3851 string_copy(entry->author, author_name);
3852 memcpy(&entry->time, &author_time, sizeof(entry->time));
3857 if (annotated == view->lines)
3858 kill_io(view->pipe);
3864 tree_read(struct view *view, char *text)
3866 static bool read_date = FALSE;
3867 struct tree_entry *data;
3868 struct line *entry, *line;
3869 enum line_type type;
3870 size_t textlen = text ? strlen(text) : 0;
3871 char *path = text + SIZEOF_TREE_ATTR;
3873 if (read_date || !text)
3874 return tree_read_date(view, text, &read_date);
3876 if (textlen <= SIZEOF_TREE_ATTR)
3878 if (view->lines == 0 &&
3879 !tree_entry(view, LINE_TREE_PARENT, opt_path, NULL, NULL))
3882 /* Strip the path part ... */
3884 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3885 size_t striplen = strlen(opt_path);
3887 if (pathlen > striplen)
3888 memmove(path, path + striplen,
3889 pathlen - striplen + 1);
3891 /* Insert "link" to parent directory. */
3892 if (view->lines == 1 &&
3893 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3897 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3898 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3903 /* Skip "Directory ..." and ".." line. */
3904 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3905 if (tree_compare_entry(line, entry) <= 0)
3908 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3912 for (; line <= entry; line++)
3913 line->dirty = line->cleareol = 1;
3917 if (tree_lineno > view->lineno) {
3918 view->lineno = tree_lineno;
3926 tree_draw(struct view *view, struct line *line, unsigned int lineno)
3928 struct tree_entry *entry = line->data;
3930 if (line->type == LINE_TREE_PARENT) {
3931 if (draw_text(view, line->type, "Directory path /", TRUE))
3934 char mode[11] = "-r--r--r--";
3936 if (S_ISDIR(entry->mode)) {
3937 mode[3] = mode[6] = mode[9] = 'x';
3940 if (S_ISLNK(entry->mode))
3942 if (entry->mode & S_IWUSR)
3944 if (entry->mode & S_IXUSR)
3946 if (entry->mode & S_IXGRP)
3948 if (entry->mode & S_IXOTH)
3950 if (draw_field(view, LINE_TREE_MODE, mode, 11, TRUE))
3954 draw_field(view, LINE_MAIN_AUTHOR, entry->author, opt_author_cols, TRUE))
3957 if (opt_date && draw_date(view, *entry->author ? &entry->time : NULL))
3960 if (draw_text(view, line->type, entry->name, TRUE))
3968 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
3969 int fd = mkstemp(file);
3972 report("Failed to create temporary file");
3973 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
3974 report("Failed to save blob data to file");
3976 open_editor(FALSE, file);
3982 tree_request(struct view *view, enum request request, struct line *line)
3984 enum open_flags flags;
3987 case REQ_VIEW_BLAME:
3988 if (line->type != LINE_TREE_FILE) {
3989 report("Blame only supported for files");
3993 string_copy(opt_ref, view->vid);
3997 if (line->type != LINE_TREE_FILE) {
3998 report("Edit only supported for files");
3999 } else if (!is_head_commit(view->vid)) {
4002 open_editor(TRUE, opt_file);
4008 /* quit view if at top of tree */
4009 return REQ_VIEW_CLOSE;
4012 line = &view->line[1];
4022 /* Cleanup the stack if the tree view is at a different tree. */
4023 while (!*opt_path && tree_stack)
4024 pop_tree_stack_entry();
4026 switch (line->type) {
4028 /* Depending on whether it is a subdir or parent (updir?) link
4029 * mangle the path buffer. */
4030 if (line == &view->line[1] && *opt_path) {
4031 pop_tree_stack_entry();
4034 const char *basename = tree_path(line);
4036 push_tree_stack_entry(basename, view->lineno);
4039 /* Trees and subtrees share the same ID, so they are not not
4040 * unique like blobs. */
4041 flags = OPEN_RELOAD;
4042 request = REQ_VIEW_TREE;
4045 case LINE_TREE_FILE:
4046 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4047 request = REQ_VIEW_BLOB;
4054 open_view(view, request, flags);
4055 if (request == REQ_VIEW_TREE)
4056 view->lineno = tree_lineno;
4062 tree_select(struct view *view, struct line *line)
4064 struct tree_entry *entry = line->data;
4066 if (line->type == LINE_TREE_FILE) {
4067 string_copy_rev(ref_blob, entry->id);
4068 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4070 } else if (line->type != LINE_TREE_DIR) {
4074 string_copy_rev(view->ref, entry->id);
4077 static const char *tree_argv[SIZEOF_ARG] = {
4078 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4081 static struct view_ops tree_ops = {
4093 blob_read(struct view *view, char *line)
4097 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4101 blob_request(struct view *view, enum request request, struct line *line)
4108 return pager_request(view, request, line);
4112 static const char *blob_argv[SIZEOF_ARG] = {
4113 "git", "cat-file", "blob", "%(blob)", NULL
4116 static struct view_ops blob_ops = {
4130 * Loading the blame view is a two phase job:
4132 * 1. File content is read either using opt_file from the
4133 * filesystem or using git-cat-file.
4134 * 2. Then blame information is incrementally added by
4135 * reading output from git-blame.
4138 static const char *blame_head_argv[] = {
4139 "git", "blame", "--incremental", "--", "%(file)", NULL
4142 static const char *blame_ref_argv[] = {
4143 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4146 static const char *blame_cat_file_argv[] = {
4147 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4150 struct blame_commit {
4151 char id[SIZEOF_REV]; /* SHA1 ID. */
4152 char title[128]; /* First line of the commit message. */
4153 char author[75]; /* Author of the commit. */
4154 struct tm time; /* Date from the author ident. */
4155 char filename[128]; /* Name of file. */
4156 bool has_previous; /* Was a "previous" line detected. */
4160 struct blame_commit *commit;
4165 blame_open(struct view *view)
4167 if (*opt_ref || !io_open(&view->io, opt_file)) {
4168 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4172 setup_update(view, opt_file);
4173 string_format(view->ref, "%s ...", opt_file);
4178 static struct blame_commit *
4179 get_blame_commit(struct view *view, const char *id)
4183 for (i = 0; i < view->lines; i++) {
4184 struct blame *blame = view->line[i].data;
4189 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4190 return blame->commit;
4194 struct blame_commit *commit = calloc(1, sizeof(*commit));
4197 string_ncopy(commit->id, id, SIZEOF_REV);
4203 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4205 const char *pos = *posref;
4208 pos = strchr(pos + 1, ' ');
4209 if (!pos || !isdigit(pos[1]))
4211 *number = atoi(pos + 1);
4212 if (*number < min || *number > max)
4219 static struct blame_commit *
4220 parse_blame_commit(struct view *view, const char *text, int *blamed)
4222 struct blame_commit *commit;
4223 struct blame *blame;
4224 const char *pos = text + SIZEOF_REV - 1;
4228 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
4231 if (!parse_number(&pos, &lineno, 1, view->lines) ||
4232 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4235 commit = get_blame_commit(view, text);
4241 struct line *line = &view->line[lineno + group - 1];
4244 blame->commit = commit;
4252 blame_read_file(struct view *view, const char *line, bool *read_file)
4255 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4258 if (view->lines == 0 && !view->parent)
4259 die("No blame exist for %s", view->vid);
4261 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4262 report("Failed to load blame data");
4266 done_io(view->pipe);
4272 size_t linelen = strlen(line);
4273 struct blame *blame = malloc(sizeof(*blame) + linelen);
4275 blame->commit = NULL;
4276 strncpy(blame->text, line, linelen);
4277 blame->text[linelen] = 0;
4278 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4283 match_blame_header(const char *name, char **line)
4285 size_t namelen = strlen(name);
4286 bool matched = !strncmp(name, *line, namelen);
4295 blame_read(struct view *view, char *line)
4297 static struct blame_commit *commit = NULL;
4298 static int blamed = 0;
4299 static time_t author_time;
4300 static bool read_file = TRUE;
4303 return blame_read_file(view, line, &read_file);
4310 string_format(view->ref, "%s", view->vid);
4311 if (view_is_displayed(view)) {
4312 update_view_title(view);
4313 redraw_view_from(view, 0);
4319 commit = parse_blame_commit(view, line, &blamed);
4320 string_format(view->ref, "%s %2d%%", view->vid,
4321 view->lines ? blamed * 100 / view->lines : 0);
4323 } else if (match_blame_header("author ", &line)) {
4324 string_ncopy(commit->author, line, strlen(line));
4326 } else if (match_blame_header("author-time ", &line)) {
4327 author_time = (time_t) atol(line);
4329 } else if (match_blame_header("author-tz ", &line)) {
4332 tz = ('0' - line[1]) * 60 * 60 * 10;
4333 tz += ('0' - line[2]) * 60 * 60;
4334 tz += ('0' - line[3]) * 60;
4335 tz += ('0' - line[4]) * 60;
4341 gmtime_r(&author_time, &commit->time);
4343 } else if (match_blame_header("summary ", &line)) {
4344 string_ncopy(commit->title, line, strlen(line));
4346 } else if (match_blame_header("previous ", &line)) {
4347 commit->has_previous = TRUE;
4349 } else if (match_blame_header("filename ", &line)) {
4350 string_ncopy(commit->filename, line, strlen(line));
4358 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4360 struct blame *blame = line->data;
4361 struct tm *time = NULL;
4362 const char *id = NULL, *author = NULL;
4364 if (blame->commit && *blame->commit->filename) {
4365 id = blame->commit->id;
4366 author = blame->commit->author;
4367 time = &blame->commit->time;
4370 if (opt_date && draw_date(view, time))
4374 draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE))
4377 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4380 if (draw_lineno(view, lineno))
4383 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4388 check_blame_commit(struct blame *blame)
4391 report("Commit data not loaded yet");
4392 else if (!strcmp(blame->commit->id, NULL_ID))
4393 report("No commit exist for the selected line");
4400 blame_request(struct view *view, enum request request, struct line *line)
4402 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4403 struct blame *blame = line->data;
4406 case REQ_VIEW_BLAME:
4407 if (check_blame_commit(blame)) {
4408 string_copy(opt_ref, blame->commit->id);
4409 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4414 if (check_blame_commit(blame) &&
4415 select_commit_parent(blame->commit->id, opt_ref))
4416 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4420 if (!blame->commit) {
4421 report("No commit loaded yet");
4425 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4426 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4429 if (!strcmp(blame->commit->id, NULL_ID)) {
4430 struct view *diff = VIEW(REQ_VIEW_DIFF);
4431 const char *diff_index_argv[] = {
4432 "git", "diff-index", "--root", "--patch-with-stat",
4433 "-C", "-M", "HEAD", "--", view->vid, NULL
4436 if (!blame->commit->has_previous) {
4437 diff_index_argv[1] = "diff";
4438 diff_index_argv[2] = "--no-color";
4439 diff_index_argv[6] = "--";
4440 diff_index_argv[7] = "/dev/null";
4443 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4444 report("Failed to allocate diff command");
4447 flags |= OPEN_PREPARED;
4450 open_view(view, REQ_VIEW_DIFF, flags);
4451 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4452 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4463 blame_grep(struct view *view, struct line *line)
4465 struct blame *blame = line->data;
4466 struct blame_commit *commit = blame->commit;
4469 #define MATCH(text, on) \
4470 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4473 char buf[DATE_COLS + 1];
4475 if (MATCH(commit->title, 1) ||
4476 MATCH(commit->author, opt_author) ||
4477 MATCH(commit->id, opt_date))
4480 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4485 return MATCH(blame->text, 1);
4491 blame_select(struct view *view, struct line *line)
4493 struct blame *blame = line->data;
4494 struct blame_commit *commit = blame->commit;
4499 if (!strcmp(commit->id, NULL_ID))
4500 string_ncopy(ref_commit, "HEAD", 4);
4502 string_copy_rev(ref_commit, commit->id);
4505 static struct view_ops blame_ops = {
4524 char rev[SIZEOF_REV];
4525 char name[SIZEOF_STR];
4529 char rev[SIZEOF_REV];
4530 char name[SIZEOF_STR];
4534 static char status_onbranch[SIZEOF_STR];
4535 static struct status stage_status;
4536 static enum line_type stage_line_type;
4537 static size_t stage_chunks;
4538 static int *stage_chunk;
4540 /* This should work even for the "On branch" line. */
4542 status_has_none(struct view *view, struct line *line)
4544 return line < view->line + view->lines && !line[1].data;
4547 /* Get fields from the diff line:
4548 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4551 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4553 const char *old_mode = buf + 1;
4554 const char *new_mode = buf + 8;
4555 const char *old_rev = buf + 15;
4556 const char *new_rev = buf + 56;
4557 const char *status = buf + 97;
4560 old_mode[-1] != ':' ||
4561 new_mode[-1] != ' ' ||
4562 old_rev[-1] != ' ' ||
4563 new_rev[-1] != ' ' ||
4567 file->status = *status;
4569 string_copy_rev(file->old.rev, old_rev);
4570 string_copy_rev(file->new.rev, new_rev);
4572 file->old.mode = strtoul(old_mode, NULL, 8);
4573 file->new.mode = strtoul(new_mode, NULL, 8);
4575 file->old.name[0] = file->new.name[0] = 0;
4581 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4583 struct status *file = NULL;
4584 struct status *unmerged = NULL;
4588 if (!run_io(&io, argv, NULL, IO_RD))
4591 add_line_data(view, NULL, type);
4593 while ((buf = io_get(&io, 0, TRUE))) {
4595 file = calloc(1, sizeof(*file));
4596 if (!file || !add_line_data(view, file, type))
4600 /* Parse diff info part. */
4602 file->status = status;
4604 string_copy(file->old.rev, NULL_ID);
4606 } else if (!file->status) {
4607 if (!status_get_diff(file, buf, strlen(buf)))
4610 buf = io_get(&io, 0, TRUE);
4614 /* Collapse all 'M'odified entries that follow a
4615 * associated 'U'nmerged entry. */
4616 if (file->status == 'U') {
4619 } else if (unmerged) {
4620 int collapse = !strcmp(buf, unmerged->new.name);
4632 /* Grab the old name for rename/copy. */
4633 if (!*file->old.name &&
4634 (file->status == 'R' || file->status == 'C')) {
4635 string_ncopy(file->old.name, buf, strlen(buf));
4637 buf = io_get(&io, 0, TRUE);
4642 /* git-ls-files just delivers a NUL separated list of
4643 * file names similar to the second half of the
4644 * git-diff-* output. */
4645 string_ncopy(file->new.name, buf, strlen(buf));
4646 if (!*file->old.name)
4647 string_copy(file->old.name, file->new.name);
4651 if (io_error(&io)) {
4657 if (!view->line[view->lines - 1].data)
4658 add_line_data(view, NULL, LINE_STAT_NONE);
4664 /* Don't show unmerged entries in the staged section. */
4665 static const char *status_diff_index_argv[] = {
4666 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4667 "--cached", "-M", "HEAD", NULL
4670 static const char *status_diff_files_argv[] = {
4671 "git", "diff-files", "-z", NULL
4674 static const char *status_list_other_argv[] = {
4675 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4678 static const char *status_list_no_head_argv[] = {
4679 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4682 static const char *update_index_argv[] = {
4683 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4686 /* Restore the previous line number to stay in the context or select a
4687 * line with something that can be updated. */
4689 status_restore(struct view *view)
4691 if (view->p_lineno >= view->lines)
4692 view->p_lineno = view->lines - 1;
4693 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4695 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4698 /* If the above fails, always skip the "On branch" line. */
4699 if (view->p_lineno < view->lines)
4700 view->lineno = view->p_lineno;
4704 if (view->lineno < view->offset)
4705 view->offset = view->lineno;
4706 else if (view->offset + view->height <= view->lineno)
4707 view->offset = view->lineno - view->height + 1;
4709 view->p_restore = FALSE;
4712 /* First parse staged info using git-diff-index(1), then parse unstaged
4713 * info using git-diff-files(1), and finally untracked files using
4714 * git-ls-files(1). */
4716 status_open(struct view *view)
4720 add_line_data(view, NULL, LINE_STAT_HEAD);
4721 if (is_initial_commit())
4722 string_copy(status_onbranch, "Initial commit");
4723 else if (!*opt_head)
4724 string_copy(status_onbranch, "Not currently on any branch");
4725 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4728 run_io_bg(update_index_argv);
4730 if (is_initial_commit()) {
4731 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4733 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4737 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4738 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4741 /* Restore the exact position or use the specialized restore
4743 if (!view->p_restore)
4744 status_restore(view);
4749 status_draw(struct view *view, struct line *line, unsigned int lineno)
4751 struct status *status = line->data;
4752 enum line_type type;
4756 switch (line->type) {
4757 case LINE_STAT_STAGED:
4758 type = LINE_STAT_SECTION;
4759 text = "Changes to be committed:";
4762 case LINE_STAT_UNSTAGED:
4763 type = LINE_STAT_SECTION;
4764 text = "Changed but not updated:";
4767 case LINE_STAT_UNTRACKED:
4768 type = LINE_STAT_SECTION;
4769 text = "Untracked files:";
4772 case LINE_STAT_NONE:
4773 type = LINE_DEFAULT;
4774 text = " (no files)";
4777 case LINE_STAT_HEAD:
4778 type = LINE_STAT_HEAD;
4779 text = status_onbranch;
4786 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4788 buf[0] = status->status;
4789 if (draw_text(view, line->type, buf, TRUE))
4791 type = LINE_DEFAULT;
4792 text = status->new.name;
4795 draw_text(view, type, text, TRUE);
4800 status_enter(struct view *view, struct line *line)
4802 struct status *status = line->data;
4803 const char *oldpath = status ? status->old.name : NULL;
4804 /* Diffs for unmerged entries are empty when passing the new
4805 * path, so leave it empty. */
4806 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4808 enum open_flags split;
4809 struct view *stage = VIEW(REQ_VIEW_STAGE);
4811 if (line->type == LINE_STAT_NONE ||
4812 (!status && line[1].type == LINE_STAT_NONE)) {
4813 report("No file to diff");
4817 switch (line->type) {
4818 case LINE_STAT_STAGED:
4819 if (is_initial_commit()) {
4820 const char *no_head_diff_argv[] = {
4821 "git", "diff", "--no-color", "--patch-with-stat",
4822 "--", "/dev/null", newpath, NULL
4825 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4828 const char *index_show_argv[] = {
4829 "git", "diff-index", "--root", "--patch-with-stat",
4830 "-C", "-M", "--cached", "HEAD", "--",
4831 oldpath, newpath, NULL
4834 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4839 info = "Staged changes to %s";
4841 info = "Staged changes";
4844 case LINE_STAT_UNSTAGED:
4846 const char *files_show_argv[] = {
4847 "git", "diff-files", "--root", "--patch-with-stat",
4848 "-C", "-M", "--", oldpath, newpath, NULL
4851 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4854 info = "Unstaged changes to %s";
4856 info = "Unstaged changes";
4859 case LINE_STAT_UNTRACKED:
4861 report("No file to show");
4865 if (!suffixcmp(status->new.name, -1, "/")) {
4866 report("Cannot display a directory");
4870 if (!prepare_update_file(stage, newpath))
4872 info = "Untracked file %s";
4875 case LINE_STAT_HEAD:
4879 die("line type %d not handled in switch", line->type);
4882 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4883 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
4884 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4886 stage_status = *status;
4888 memset(&stage_status, 0, sizeof(stage_status));
4891 stage_line_type = line->type;
4893 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4900 status_exists(struct status *status, enum line_type type)
4902 struct view *view = VIEW(REQ_VIEW_STATUS);
4903 unsigned long lineno;
4905 for (lineno = 0; lineno < view->lines; lineno++) {
4906 struct line *line = &view->line[lineno];
4907 struct status *pos = line->data;
4909 if (line->type != type)
4911 if (!pos && (!status || !status->status) && line[1].data) {
4912 select_view_line(view, lineno);
4915 if (pos && !strcmp(status->new.name, pos->new.name)) {
4916 select_view_line(view, lineno);
4926 status_update_prepare(struct io *io, enum line_type type)
4928 const char *staged_argv[] = {
4929 "git", "update-index", "-z", "--index-info", NULL
4931 const char *others_argv[] = {
4932 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4936 case LINE_STAT_STAGED:
4937 return run_io(io, staged_argv, opt_cdup, IO_WR);
4939 case LINE_STAT_UNSTAGED:
4940 return run_io(io, others_argv, opt_cdup, IO_WR);
4942 case LINE_STAT_UNTRACKED:
4943 return run_io(io, others_argv, NULL, IO_WR);
4946 die("line type %d not handled in switch", type);
4952 status_update_write(struct io *io, struct status *status, enum line_type type)
4954 char buf[SIZEOF_STR];
4958 case LINE_STAT_STAGED:
4959 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4962 status->old.name, 0))
4966 case LINE_STAT_UNSTAGED:
4967 case LINE_STAT_UNTRACKED:
4968 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4973 die("line type %d not handled in switch", type);
4976 return io_write(io, buf, bufsize);
4980 status_update_file(struct status *status, enum line_type type)
4985 if (!status_update_prepare(&io, type))
4988 result = status_update_write(&io, status, type);
4994 status_update_files(struct view *view, struct line *line)
4998 struct line *pos = view->line + view->lines;
5002 if (!status_update_prepare(&io, line->type))
5005 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5008 for (file = 0, done = 0; result && file < files; line++, file++) {
5009 int almost_done = file * 100 / files;
5011 if (almost_done > done) {
5013 string_format(view->ref, "updating file %u of %u (%d%% done)",
5015 update_view_title(view);
5017 result = status_update_write(&io, line->data, line->type);
5025 status_update(struct view *view)
5027 struct line *line = &view->line[view->lineno];
5029 assert(view->lines);
5032 /* This should work even for the "On branch" line. */
5033 if (line < view->line + view->lines && !line[1].data) {
5034 report("Nothing to update");
5038 if (!status_update_files(view, line + 1)) {
5039 report("Failed to update file status");
5043 } else if (!status_update_file(line->data, line->type)) {
5044 report("Failed to update file status");
5052 status_revert(struct status *status, enum line_type type, bool has_none)
5054 if (!status || type != LINE_STAT_UNSTAGED) {
5055 if (type == LINE_STAT_STAGED) {
5056 report("Cannot revert changes to staged files");
5057 } else if (type == LINE_STAT_UNTRACKED) {
5058 report("Cannot revert changes to untracked files");
5059 } else if (has_none) {
5060 report("Nothing to revert");
5062 report("Cannot revert changes to multiple files");
5067 const char *checkout_argv[] = {
5068 "git", "checkout", "--", status->old.name, NULL
5071 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5073 return run_io_fg(checkout_argv, opt_cdup);
5078 status_request(struct view *view, enum request request, struct line *line)
5080 struct status *status = line->data;
5083 case REQ_STATUS_UPDATE:
5084 if (!status_update(view))
5088 case REQ_STATUS_REVERT:
5089 if (!status_revert(status, line->type, status_has_none(view, line)))
5093 case REQ_STATUS_MERGE:
5094 if (!status || status->status != 'U') {
5095 report("Merging only possible for files with unmerged status ('U').");
5098 open_mergetool(status->new.name);
5104 if (status->status == 'D') {
5105 report("File has been deleted.");
5109 open_editor(status->status != '?', status->new.name);
5112 case REQ_VIEW_BLAME:
5114 string_copy(opt_file, status->new.name);
5120 /* After returning the status view has been split to
5121 * show the stage view. No further reloading is
5123 status_enter(view, line);
5127 /* Simply reload the view. */
5134 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5140 status_select(struct view *view, struct line *line)
5142 struct status *status = line->data;
5143 char file[SIZEOF_STR] = "all files";
5147 if (status && !string_format(file, "'%s'", status->new.name))
5150 if (!status && line[1].type == LINE_STAT_NONE)
5153 switch (line->type) {
5154 case LINE_STAT_STAGED:
5155 text = "Press %s to unstage %s for commit";
5158 case LINE_STAT_UNSTAGED:
5159 text = "Press %s to stage %s for commit";
5162 case LINE_STAT_UNTRACKED:
5163 text = "Press %s to stage %s for addition";
5166 case LINE_STAT_HEAD:
5167 case LINE_STAT_NONE:
5168 text = "Nothing to update";
5172 die("line type %d not handled in switch", line->type);
5175 if (status && status->status == 'U') {
5176 text = "Press %s to resolve conflict in %s";
5177 key = get_key(REQ_STATUS_MERGE);
5180 key = get_key(REQ_STATUS_UPDATE);
5183 string_format(view->ref, text, key, file);
5187 status_grep(struct view *view, struct line *line)
5189 struct status *status = line->data;
5190 enum { S_STATUS, S_NAME, S_END } state;
5197 for (state = S_STATUS; state < S_END; state++) {
5201 case S_NAME: text = status->new.name; break;
5203 buf[0] = status->status;
5211 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5218 static struct view_ops status_ops = {
5231 stage_diff_write(struct io *io, struct line *line, struct line *end)
5233 while (line < end) {
5234 if (!io_write(io, line->data, strlen(line->data)) ||
5235 !io_write(io, "\n", 1))
5238 if (line->type == LINE_DIFF_CHUNK ||
5239 line->type == LINE_DIFF_HEADER)
5246 static struct line *
5247 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5249 for (; view->line < line; line--)
5250 if (line->type == type)
5257 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5259 const char *apply_argv[SIZEOF_ARG] = {
5260 "git", "apply", "--whitespace=nowarn", NULL
5262 struct line *diff_hdr;
5266 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5271 apply_argv[argc++] = "--cached";
5272 if (revert || stage_line_type == LINE_STAT_STAGED)
5273 apply_argv[argc++] = "-R";
5274 apply_argv[argc++] = "-";
5275 apply_argv[argc++] = NULL;
5276 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5279 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5280 !stage_diff_write(&io, chunk, view->line + view->lines))
5284 run_io_bg(update_index_argv);
5286 return chunk ? TRUE : FALSE;
5290 stage_update(struct view *view, struct line *line)
5292 struct line *chunk = NULL;
5294 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5295 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5298 if (!stage_apply_chunk(view, chunk, FALSE)) {
5299 report("Failed to apply chunk");
5303 } else if (!stage_status.status) {
5304 view = VIEW(REQ_VIEW_STATUS);
5306 for (line = view->line; line < view->line + view->lines; line++)
5307 if (line->type == stage_line_type)
5310 if (!status_update_files(view, line + 1)) {
5311 report("Failed to update files");
5315 } else if (!status_update_file(&stage_status, stage_line_type)) {
5316 report("Failed to update file");
5324 stage_revert(struct view *view, struct line *line)
5326 struct line *chunk = NULL;
5328 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5329 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5332 if (!prompt_yesno("Are you sure you want to revert changes?"))
5335 if (!stage_apply_chunk(view, chunk, TRUE)) {
5336 report("Failed to revert chunk");
5342 return status_revert(stage_status.status ? &stage_status : NULL,
5343 stage_line_type, FALSE);
5349 stage_next(struct view *view, struct line *line)
5353 if (!stage_chunks) {
5354 static size_t alloc = 0;
5357 for (line = view->line; line < view->line + view->lines; line++) {
5358 if (line->type != LINE_DIFF_CHUNK)
5361 tmp = realloc_items(stage_chunk, &alloc,
5362 stage_chunks, sizeof(*tmp));
5364 report("Allocation failure");
5369 stage_chunk[stage_chunks++] = line - view->line;
5373 for (i = 0; i < stage_chunks; i++) {
5374 if (stage_chunk[i] > view->lineno) {
5375 do_scroll_view(view, stage_chunk[i] - view->lineno);
5376 report("Chunk %d of %d", i + 1, stage_chunks);
5381 report("No next chunk found");
5385 stage_request(struct view *view, enum request request, struct line *line)
5388 case REQ_STATUS_UPDATE:
5389 if (!stage_update(view, line))
5393 case REQ_STATUS_REVERT:
5394 if (!stage_revert(view, line))
5398 case REQ_STAGE_NEXT:
5399 if (stage_line_type == LINE_STAT_UNTRACKED) {
5400 report("File is untracked; press %s to add",
5401 get_key(REQ_STATUS_UPDATE));
5404 stage_next(view, line);
5408 if (!stage_status.new.name[0])
5410 if (stage_status.status == 'D') {
5411 report("File has been deleted.");
5415 open_editor(stage_status.status != '?', stage_status.new.name);
5419 /* Reload everything ... */
5422 case REQ_VIEW_BLAME:
5423 if (stage_status.new.name[0]) {
5424 string_copy(opt_file, stage_status.new.name);
5430 return pager_request(view, request, line);
5436 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5437 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5439 /* Check whether the staged entry still exists, and close the
5440 * stage view if it doesn't. */
5441 if (!status_exists(&stage_status, stage_line_type)) {
5442 status_restore(VIEW(REQ_VIEW_STATUS));
5443 return REQ_VIEW_CLOSE;
5446 if (stage_line_type == LINE_STAT_UNTRACKED) {
5447 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5448 report("Cannot display a directory");
5452 if (!prepare_update_file(view, stage_status.new.name)) {
5453 report("Failed to open file: %s", strerror(errno));
5457 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5462 static struct view_ops stage_ops = {
5479 char id[SIZEOF_REV]; /* SHA1 ID. */
5480 char title[128]; /* First line of the commit message. */
5481 char author[75]; /* Author of the commit. */
5482 struct tm time; /* Date from the author ident. */
5483 struct ref **refs; /* Repository references. */
5484 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5485 size_t graph_size; /* The width of the graph array. */
5486 bool has_parents; /* Rewritten --parents seen. */
5489 /* Size of rev graph with no "padding" columns */
5490 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5493 struct rev_graph *prev, *next, *parents;
5494 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5496 struct commit *commit;
5498 unsigned int boundary:1;
5501 /* Parents of the commit being visualized. */
5502 static struct rev_graph graph_parents[4];
5504 /* The current stack of revisions on the graph. */
5505 static struct rev_graph graph_stacks[4] = {
5506 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5507 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5508 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5509 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5513 graph_parent_is_merge(struct rev_graph *graph)
5515 return graph->parents->size > 1;
5519 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5521 struct commit *commit = graph->commit;
5523 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5524 commit->graph[commit->graph_size++] = symbol;
5528 clear_rev_graph(struct rev_graph *graph)
5530 graph->boundary = 0;
5531 graph->size = graph->pos = 0;
5532 graph->commit = NULL;
5533 memset(graph->parents, 0, sizeof(*graph->parents));
5537 done_rev_graph(struct rev_graph *graph)
5539 if (graph_parent_is_merge(graph) &&
5540 graph->pos < graph->size - 1 &&
5541 graph->next->size == graph->size + graph->parents->size - 1) {
5542 size_t i = graph->pos + graph->parents->size - 1;
5544 graph->commit->graph_size = i * 2;
5545 while (i < graph->next->size - 1) {
5546 append_to_rev_graph(graph, ' ');
5547 append_to_rev_graph(graph, '\\');
5552 clear_rev_graph(graph);
5556 push_rev_graph(struct rev_graph *graph, const char *parent)
5560 /* "Collapse" duplicate parents lines.
5562 * FIXME: This needs to also update update the drawn graph but
5563 * for now it just serves as a method for pruning graph lines. */
5564 for (i = 0; i < graph->size; i++)
5565 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5568 if (graph->size < SIZEOF_REVITEMS) {
5569 string_copy_rev(graph->rev[graph->size++], parent);
5574 get_rev_graph_symbol(struct rev_graph *graph)
5578 if (graph->boundary)
5579 symbol = REVGRAPH_BOUND;
5580 else if (graph->parents->size == 0)
5581 symbol = REVGRAPH_INIT;
5582 else if (graph_parent_is_merge(graph))
5583 symbol = REVGRAPH_MERGE;
5584 else if (graph->pos >= graph->size)
5585 symbol = REVGRAPH_BRANCH;
5587 symbol = REVGRAPH_COMMIT;
5593 draw_rev_graph(struct rev_graph *graph)
5596 chtype separator, line;
5598 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5599 static struct rev_filler fillers[] = {
5605 chtype symbol = get_rev_graph_symbol(graph);
5606 struct rev_filler *filler;
5609 if (opt_line_graphics)
5610 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5612 filler = &fillers[DEFAULT];
5614 for (i = 0; i < graph->pos; i++) {
5615 append_to_rev_graph(graph, filler->line);
5616 if (graph_parent_is_merge(graph->prev) &&
5617 graph->prev->pos == i)
5618 filler = &fillers[RSHARP];
5620 append_to_rev_graph(graph, filler->separator);
5623 /* Place the symbol for this revision. */
5624 append_to_rev_graph(graph, symbol);
5626 if (graph->prev->size > graph->size)
5627 filler = &fillers[RDIAG];
5629 filler = &fillers[DEFAULT];
5633 for (; i < graph->size; i++) {
5634 append_to_rev_graph(graph, filler->separator);
5635 append_to_rev_graph(graph, filler->line);
5636 if (graph_parent_is_merge(graph->prev) &&
5637 i < graph->prev->pos + graph->parents->size)
5638 filler = &fillers[RSHARP];
5639 if (graph->prev->size > graph->size)
5640 filler = &fillers[LDIAG];
5643 if (graph->prev->size > graph->size) {
5644 append_to_rev_graph(graph, filler->separator);
5645 if (filler->line != ' ')
5646 append_to_rev_graph(graph, filler->line);
5650 /* Prepare the next rev graph */
5652 prepare_rev_graph(struct rev_graph *graph)
5656 /* First, traverse all lines of revisions up to the active one. */
5657 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5658 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5661 push_rev_graph(graph->next, graph->rev[graph->pos]);
5664 /* Interleave the new revision parent(s). */
5665 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5666 push_rev_graph(graph->next, graph->parents->rev[i]);
5668 /* Lastly, put any remaining revisions. */
5669 for (i = graph->pos + 1; i < graph->size; i++)
5670 push_rev_graph(graph->next, graph->rev[i]);
5674 update_rev_graph(struct view *view, struct rev_graph *graph)
5676 /* If this is the finalizing update ... */
5678 prepare_rev_graph(graph);
5680 /* Graph visualization needs a one rev look-ahead,
5681 * so the first update doesn't visualize anything. */
5682 if (!graph->prev->commit)
5685 if (view->lines > 2)
5686 view->line[view->lines - 3].dirty = 1;
5687 if (view->lines > 1)
5688 view->line[view->lines - 2].dirty = 1;
5689 draw_rev_graph(graph->prev);
5690 done_rev_graph(graph->prev->prev);
5698 static const char *main_argv[SIZEOF_ARG] = {
5699 "git", "log", "--no-color", "--pretty=raw", "--parents",
5700 "--topo-order", "%(head)", NULL
5704 main_draw(struct view *view, struct line *line, unsigned int lineno)
5706 struct commit *commit = line->data;
5708 if (!*commit->author)
5711 if (opt_date && draw_date(view, &commit->time))
5715 draw_field(view, LINE_MAIN_AUTHOR, commit->author, opt_author_cols, TRUE))
5718 if (opt_rev_graph && commit->graph_size &&
5719 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5722 if (opt_show_refs && commit->refs) {
5726 enum line_type type;
5728 if (commit->refs[i]->head)
5729 type = LINE_MAIN_HEAD;
5730 else if (commit->refs[i]->ltag)
5731 type = LINE_MAIN_LOCAL_TAG;
5732 else if (commit->refs[i]->tag)
5733 type = LINE_MAIN_TAG;
5734 else if (commit->refs[i]->tracked)
5735 type = LINE_MAIN_TRACKED;
5736 else if (commit->refs[i]->remote)
5737 type = LINE_MAIN_REMOTE;
5739 type = LINE_MAIN_REF;
5741 if (draw_text(view, type, "[", TRUE) ||
5742 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5743 draw_text(view, type, "]", TRUE))
5746 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5748 } while (commit->refs[i++]->next);
5751 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5755 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5757 main_read(struct view *view, char *line)
5759 static struct rev_graph *graph = graph_stacks;
5760 enum line_type type;
5761 struct commit *commit;
5766 if (!view->lines && !view->parent)
5767 die("No revisions match the given arguments.");
5768 if (view->lines > 0) {
5769 commit = view->line[view->lines - 1].data;
5770 view->line[view->lines - 1].dirty = 1;
5771 if (!*commit->author) {
5774 graph->commit = NULL;
5777 update_rev_graph(view, graph);
5779 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5780 clear_rev_graph(&graph_stacks[i]);
5784 type = get_line_type(line);
5785 if (type == LINE_COMMIT) {
5786 commit = calloc(1, sizeof(struct commit));
5790 line += STRING_SIZE("commit ");
5792 graph->boundary = 1;
5796 string_copy_rev(commit->id, line);
5797 commit->refs = get_refs(commit->id);
5798 graph->commit = commit;
5799 add_line_data(view, commit, LINE_MAIN_COMMIT);
5801 while ((line = strchr(line, ' '))) {
5803 push_rev_graph(graph->parents, line);
5804 commit->has_parents = TRUE;
5811 commit = view->line[view->lines - 1].data;
5815 if (commit->has_parents)
5817 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5821 parse_author_line(line + STRING_SIZE("author "),
5822 commit->author, sizeof(commit->author),
5824 update_rev_graph(view, graph);
5825 graph = graph->next;
5829 /* Fill in the commit title if it has not already been set. */
5830 if (commit->title[0])
5833 /* Require titles to start with a non-space character at the
5834 * offset used by git log. */
5835 if (strncmp(line, " ", 4))
5838 /* Well, if the title starts with a whitespace character,
5839 * try to be forgiving. Otherwise we end up with no title. */
5840 while (isspace(*line))
5844 /* FIXME: More graceful handling of titles; append "..." to
5845 * shortened titles, etc. */
5847 string_ncopy(commit->title, line, strlen(line));
5848 view->line[view->lines - 1].dirty = 1;
5855 main_request(struct view *view, enum request request, struct line *line)
5857 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5861 open_view(view, REQ_VIEW_DIFF, flags);
5865 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5875 grep_refs(struct ref **refs, regex_t *regex)
5883 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5885 } while (refs[i++]->next);
5891 main_grep(struct view *view, struct line *line)
5893 struct commit *commit = line->data;
5894 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5895 char buf[DATE_COLS + 1];
5898 for (state = S_TITLE; state < S_END; state++) {
5902 case S_TITLE: text = commit->title; break;
5906 text = commit->author;
5911 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5918 if (grep_refs(commit->refs, view->regex) == TRUE)
5925 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5933 main_select(struct view *view, struct line *line)
5935 struct commit *commit = line->data;
5937 string_copy_rev(view->ref, commit->id);
5938 string_copy_rev(ref_commit, view->ref);
5941 static struct view_ops main_ops = {
5954 * Unicode / UTF-8 handling
5956 * NOTE: Much of the following code for dealing with unicode is derived from
5957 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5958 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5961 /* I've (over)annotated a lot of code snippets because I am not entirely
5962 * confident that the approach taken by this small UTF-8 interface is correct.
5966 unicode_width(unsigned long c)
5969 (c <= 0x115f /* Hangul Jamo */
5972 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5974 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5975 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5976 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5977 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5978 || (c >= 0xffe0 && c <= 0xffe6)
5979 || (c >= 0x20000 && c <= 0x2fffd)
5980 || (c >= 0x30000 && c <= 0x3fffd)))
5984 return opt_tab_size;
5989 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5990 * Illegal bytes are set one. */
5991 static const unsigned char utf8_bytes[256] = {
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 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5997 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5998 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,
5999 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,
6002 /* Decode UTF-8 multi-byte representation into a unicode character. */
6003 static inline unsigned long
6004 utf8_to_unicode(const char *string, size_t length)
6006 unsigned long unicode;
6010 unicode = string[0];
6013 unicode = (string[0] & 0x1f) << 6;
6014 unicode += (string[1] & 0x3f);
6017 unicode = (string[0] & 0x0f) << 12;
6018 unicode += ((string[1] & 0x3f) << 6);
6019 unicode += (string[2] & 0x3f);
6022 unicode = (string[0] & 0x0f) << 18;
6023 unicode += ((string[1] & 0x3f) << 12);
6024 unicode += ((string[2] & 0x3f) << 6);
6025 unicode += (string[3] & 0x3f);
6028 unicode = (string[0] & 0x0f) << 24;
6029 unicode += ((string[1] & 0x3f) << 18);
6030 unicode += ((string[2] & 0x3f) << 12);
6031 unicode += ((string[3] & 0x3f) << 6);
6032 unicode += (string[4] & 0x3f);
6035 unicode = (string[0] & 0x01) << 30;
6036 unicode += ((string[1] & 0x3f) << 24);
6037 unicode += ((string[2] & 0x3f) << 18);
6038 unicode += ((string[3] & 0x3f) << 12);
6039 unicode += ((string[4] & 0x3f) << 6);
6040 unicode += (string[5] & 0x3f);
6043 die("Invalid unicode length");
6046 /* Invalid characters could return the special 0xfffd value but NUL
6047 * should be just as good. */
6048 return unicode > 0xffff ? 0 : unicode;
6051 /* Calculates how much of string can be shown within the given maximum width
6052 * and sets trimmed parameter to non-zero value if all of string could not be
6053 * shown. If the reserve flag is TRUE, it will reserve at least one
6054 * trailing character, which can be useful when drawing a delimiter.
6056 * Returns the number of bytes to output from string to satisfy max_width. */
6058 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
6060 const char *start = string;
6061 const char *end = strchr(string, '\0');
6062 unsigned char last_bytes = 0;
6063 size_t last_ucwidth = 0;
6068 while (string < end) {
6069 int c = *(unsigned char *) string;
6070 unsigned char bytes = utf8_bytes[c];
6072 unsigned long unicode;
6074 if (string + bytes > end)
6077 /* Change representation to figure out whether
6078 * it is a single- or double-width character. */
6080 unicode = utf8_to_unicode(string, bytes);
6081 /* FIXME: Graceful handling of invalid unicode character. */
6085 ucwidth = unicode_width(unicode);
6087 if (*width > max_width) {
6090 if (reserve && *width == max_width) {
6091 string -= last_bytes;
6092 *width -= last_ucwidth;
6099 last_ucwidth = ucwidth;
6102 return string - start;
6110 /* Whether or not the curses interface has been initialized. */
6111 static bool cursed = FALSE;
6113 /* The status window is used for polling keystrokes. */
6114 static WINDOW *status_win;
6116 static bool status_empty = FALSE;
6118 /* Update status and title window. */
6120 report(const char *msg, ...)
6122 struct view *view = display[current_view];
6128 char buf[SIZEOF_STR];
6131 va_start(args, msg);
6132 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6133 buf[sizeof(buf) - 1] = 0;
6134 buf[sizeof(buf) - 2] = '.';
6135 buf[sizeof(buf) - 3] = '.';
6136 buf[sizeof(buf) - 4] = '.';
6142 if (!status_empty || *msg) {
6145 va_start(args, msg);
6147 wmove(status_win, 0, 0);
6149 vwprintw(status_win, msg, args);
6150 status_empty = FALSE;
6152 status_empty = TRUE;
6154 wclrtoeol(status_win);
6155 wrefresh(status_win);
6160 update_view_title(view);
6161 update_display_cursor(view);
6164 /* Controls when nodelay should be in effect when polling user input. */
6166 set_nonblocking_input(bool loading)
6168 static unsigned int loading_views;
6170 if ((loading == FALSE && loading_views-- == 1) ||
6171 (loading == TRUE && loading_views++ == 0))
6172 nodelay(status_win, loading);
6180 /* Initialize the curses library */
6181 if (isatty(STDIN_FILENO)) {
6182 cursed = !!initscr();
6185 /* Leave stdin and stdout alone when acting as a pager. */
6186 opt_tty = fopen("/dev/tty", "r+");
6188 die("Failed to open /dev/tty");
6189 cursed = !!newterm(NULL, opt_tty, opt_tty);
6193 die("Failed to initialize curses");
6195 nonl(); /* Tell curses not to do NL->CR/NL on output */
6196 cbreak(); /* Take input chars one at a time, no wait for \n */
6197 noecho(); /* Don't echo input */
6198 leaveok(stdscr, TRUE);
6203 getmaxyx(stdscr, y, x);
6204 status_win = newwin(1, 0, y - 1, 0);
6206 die("Failed to create status window");
6208 /* Enable keyboard mapping */
6209 keypad(status_win, TRUE);
6210 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6212 TABSIZE = opt_tab_size;
6213 if (opt_line_graphics) {
6214 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6219 get_input(bool prompting)
6228 foreach_view (view, i)
6231 /* Refresh, accept single keystroke of input */
6232 key = wgetch(status_win);
6234 /* wgetch() with nodelay() enabled returns ERR when
6235 * there's no input. */
6239 } else if (key == KEY_RESIZE) {
6242 getmaxyx(stdscr, height, width);
6244 /* Resize the status view first so the cursor is
6245 * placed properly. */
6246 wresize(status_win, 1, width);
6247 mvwin(status_win, height - 1, 0);
6248 wrefresh(status_win);
6250 redraw_display(TRUE);
6260 prompt_input(const char *prompt, input_handler handler, void *data)
6262 enum input_status status = INPUT_OK;
6263 static char buf[SIZEOF_STR];
6268 while (status == INPUT_OK || status == INPUT_SKIP) {
6271 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6272 wclrtoeol(status_win);
6274 key = get_input(TRUE);
6279 status = pos ? INPUT_STOP : INPUT_CANCEL;
6286 status = INPUT_CANCEL;
6290 status = INPUT_CANCEL;
6294 if (pos >= sizeof(buf)) {
6295 report("Input string too long");
6299 status = handler(data, buf, key);
6300 if (status == INPUT_OK)
6301 buf[pos++] = (char) key;
6305 /* Clear the status window */
6306 status_empty = FALSE;
6309 if (status == INPUT_CANCEL)
6317 static enum input_status
6318 prompt_yesno_handler(void *data, char *buf, int c)
6320 if (c == 'y' || c == 'Y')
6322 if (c == 'n' || c == 'N')
6323 return INPUT_CANCEL;
6328 prompt_yesno(const char *prompt)
6330 char prompt2[SIZEOF_STR];
6332 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6335 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6338 static enum input_status
6339 read_prompt_handler(void *data, char *buf, int c)
6341 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6345 read_prompt(const char *prompt)
6347 return prompt_input(prompt, read_prompt_handler, NULL);
6351 * Repository properties
6355 git_properties(const char **argv, const char *separators,
6356 int (*read_property)(char *, size_t, char *, size_t))
6360 if (init_io_rd(&io, argv, NULL, FORMAT_NONE))
6361 return read_properties(&io, separators, read_property);
6365 static struct ref *refs = NULL;
6366 static size_t refs_alloc = 0;
6367 static size_t refs_size = 0;
6369 /* Id <-> ref store */
6370 static struct ref ***id_refs = NULL;
6371 static size_t id_refs_alloc = 0;
6372 static size_t id_refs_size = 0;
6375 compare_refs(const void *ref1_, const void *ref2_)
6377 const struct ref *ref1 = *(const struct ref **)ref1_;
6378 const struct ref *ref2 = *(const struct ref **)ref2_;
6380 if (ref1->tag != ref2->tag)
6381 return ref2->tag - ref1->tag;
6382 if (ref1->ltag != ref2->ltag)
6383 return ref2->ltag - ref2->ltag;
6384 if (ref1->head != ref2->head)
6385 return ref2->head - ref1->head;
6386 if (ref1->tracked != ref2->tracked)
6387 return ref2->tracked - ref1->tracked;
6388 if (ref1->remote != ref2->remote)
6389 return ref2->remote - ref1->remote;
6390 return strcmp(ref1->name, ref2->name);
6393 static struct ref **
6394 get_refs(const char *id)
6396 struct ref ***tmp_id_refs;
6397 struct ref **ref_list = NULL;
6398 size_t ref_list_alloc = 0;
6399 size_t ref_list_size = 0;
6402 for (i = 0; i < id_refs_size; i++)
6403 if (!strcmp(id, id_refs[i][0]->id))
6406 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6411 id_refs = tmp_id_refs;
6413 for (i = 0; i < refs_size; i++) {
6416 if (strcmp(id, refs[i].id))
6419 tmp = realloc_items(ref_list, &ref_list_alloc,
6420 ref_list_size + 1, sizeof(*ref_list));
6428 ref_list[ref_list_size] = &refs[i];
6429 /* XXX: The properties of the commit chains ensures that we can
6430 * safely modify the shared ref. The repo references will
6431 * always be similar for the same id. */
6432 ref_list[ref_list_size]->next = 1;
6438 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6439 ref_list[ref_list_size - 1]->next = 0;
6440 id_refs[id_refs_size++] = ref_list;
6447 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6452 bool remote = FALSE;
6453 bool tracked = FALSE;
6454 bool check_replace = FALSE;
6457 if (!prefixcmp(name, "refs/tags/")) {
6458 if (!suffixcmp(name, namelen, "^{}")) {
6461 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6462 check_replace = TRUE;
6468 namelen -= STRING_SIZE("refs/tags/");
6469 name += STRING_SIZE("refs/tags/");
6471 } else if (!prefixcmp(name, "refs/remotes/")) {
6473 namelen -= STRING_SIZE("refs/remotes/");
6474 name += STRING_SIZE("refs/remotes/");
6475 tracked = !strcmp(opt_remote, name);
6477 } else if (!prefixcmp(name, "refs/heads/")) {
6478 namelen -= STRING_SIZE("refs/heads/");
6479 name += STRING_SIZE("refs/heads/");
6480 head = !strncmp(opt_head, name, namelen);
6482 } else if (!strcmp(name, "HEAD")) {
6483 string_ncopy(opt_head_rev, id, idlen);
6487 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6488 /* it's an annotated tag, replace the previous sha1 with the
6489 * resolved commit id; relies on the fact git-ls-remote lists
6490 * the commit id of an annotated tag right before the commit id
6492 refs[refs_size - 1].ltag = ltag;
6493 string_copy_rev(refs[refs_size - 1].id, id);
6497 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6501 ref = &refs[refs_size++];
6502 ref->name = malloc(namelen + 1);
6506 strncpy(ref->name, name, namelen);
6507 ref->name[namelen] = 0;
6511 ref->remote = remote;
6512 ref->tracked = tracked;
6513 string_copy_rev(ref->id, id);
6521 static const char *ls_remote_argv[SIZEOF_ARG] = {
6522 "git", "ls-remote", ".", NULL
6524 static bool init = FALSE;
6527 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6534 while (refs_size > 0)
6535 free(refs[--refs_size].name);
6536 while (id_refs_size > 0)
6537 free(id_refs[--id_refs_size]);
6539 return git_properties(ls_remote_argv, "\t", read_ref);
6543 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6545 if (!strcmp(name, "i18n.commitencoding"))
6546 string_ncopy(opt_encoding, value, valuelen);
6548 if (!strcmp(name, "core.editor"))
6549 string_ncopy(opt_editor, value, valuelen);
6551 /* branch.<head>.remote */
6553 !strncmp(name, "branch.", 7) &&
6554 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6555 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6556 string_ncopy(opt_remote, value, valuelen);
6558 if (*opt_head && *opt_remote &&
6559 !strncmp(name, "branch.", 7) &&
6560 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6561 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6562 size_t from = strlen(opt_remote);
6564 if (!prefixcmp(value, "refs/heads/")) {
6565 value += STRING_SIZE("refs/heads/");
6566 valuelen -= STRING_SIZE("refs/heads/");
6569 if (!string_format_from(opt_remote, &from, "/%s", value))
6577 load_git_config(void)
6579 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6581 return git_properties(config_list_argv, "=", read_repo_config_option);
6585 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6587 if (!opt_git_dir[0]) {
6588 string_ncopy(opt_git_dir, name, namelen);
6590 } else if (opt_is_inside_work_tree == -1) {
6591 /* This can be 3 different values depending on the
6592 * version of git being used. If git-rev-parse does not
6593 * understand --is-inside-work-tree it will simply echo
6594 * the option else either "true" or "false" is printed.
6595 * Default to true for the unknown case. */
6596 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6598 } else if (*name == '.') {
6599 string_ncopy(opt_cdup, name, namelen);
6602 string_ncopy(opt_prefix, name, namelen);
6609 load_repo_info(void)
6611 const char *head_argv[] = {
6612 "git", "symbolic-ref", "HEAD", NULL
6614 const char *rev_parse_argv[] = {
6615 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6616 "--show-cdup", "--show-prefix", NULL
6619 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6620 chomp_string(opt_head);
6621 if (!prefixcmp(opt_head, "refs/heads/")) {
6622 char *offset = opt_head + STRING_SIZE("refs/heads/");
6624 memmove(opt_head, offset, strlen(offset) + 1);
6628 return git_properties(rev_parse_argv, "=", read_repo_info);
6632 read_properties(struct io *io, const char *separators,
6633 int (*read_property)(char *, size_t, char *, size_t))
6641 while (state == OK && (name = io_get(io, '\n', TRUE))) {
6646 name = chomp_string(name);
6647 namelen = strcspn(name, separators);
6649 if (name[namelen]) {
6651 value = chomp_string(name + namelen + 1);
6652 valuelen = strlen(value);
6659 state = read_property(name, namelen, value, valuelen);
6662 if (state != ERR && io_error(io))
6674 static void __NORETURN
6677 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6683 static void __NORETURN
6684 die(const char *err, ...)
6690 va_start(args, err);
6691 fputs("tig: ", stderr);
6692 vfprintf(stderr, err, args);
6693 fputs("\n", stderr);
6700 warn(const char *msg, ...)
6704 va_start(args, msg);
6705 fputs("tig warning: ", stderr);
6706 vfprintf(stderr, msg, args);
6707 fputs("\n", stderr);
6712 main(int argc, const char *argv[])
6714 const char **run_argv = NULL;
6716 enum request request;
6719 signal(SIGINT, quit);
6721 if (setlocale(LC_ALL, "")) {
6722 char *codeset = nl_langinfo(CODESET);
6724 string_ncopy(opt_codeset, codeset, strlen(codeset));
6727 if (load_repo_info() == ERR)
6728 die("Failed to load repo info.");
6730 if (load_options() == ERR)
6731 die("Failed to load user config.");
6733 if (load_git_config() == ERR)
6734 die("Failed to load repo config.");
6736 request = parse_options(argc, argv, &run_argv);
6737 if (request == REQ_NONE)
6740 /* Require a git repository unless when running in pager mode. */
6741 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6742 die("Not a git repository");
6744 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6747 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6748 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6749 if (opt_iconv == ICONV_NONE)
6750 die("Failed to initialize character set conversion");
6753 if (load_refs() == ERR)
6754 die("Failed to load refs.");
6756 foreach_view (view, i)
6757 argv_from_env(view->ops->argv, view->cmd_env);
6761 if (request == REQ_VIEW_PAGER || run_argv) {
6762 if (request == REQ_VIEW_PAGER)
6763 io_open(&VIEW(request)->io, "");
6764 else if (!prepare_update(VIEW(request), run_argv, NULL, FORMAT_NONE))
6765 die("Failed to format arguments");
6766 open_view(NULL, request, OPEN_PREPARED);
6770 while (view_driver(display[current_view], request)) {
6771 int key = get_input(FALSE);
6773 view = display[current_view];
6774 request = get_keybinding(view->keymap, key);
6776 /* Some low-level request handling. This keeps access to
6777 * status_win restricted. */
6781 char *cmd = read_prompt(":");
6784 struct view *next = VIEW(REQ_VIEW_PAGER);
6785 const char *argv[SIZEOF_ARG] = { "git" };
6788 /* When running random commands, initially show the
6789 * command in the title. However, it maybe later be
6790 * overwritten if a commit line is selected. */
6791 string_ncopy(next->ref, cmd, strlen(cmd));
6793 if (!argv_from_string(argv, &argc, cmd)) {
6794 report("Too many arguments");
6795 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6796 report("Failed to format command");
6798 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6806 case REQ_SEARCH_BACK:
6808 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6809 char *search = read_prompt(prompt);
6812 string_ncopy(opt_search, search, strlen(search));