1 /* Copyright (c) 2006-2009 Jonas Fonseca <fonseca@diku.dk>
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License as
5 * published by the Free Software Foundation; either version 2 of
6 * the License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
19 #define TIG_VERSION "unknown-version"
34 #include <sys/types.h>
37 #include <sys/select.h>
48 /* ncurses(3): Must be defined to have extended wide-character functions. */
49 #define _XOPEN_SOURCE_EXTENDED
51 #ifdef HAVE_NCURSESW_NCURSES_H
52 #include <ncursesw/ncurses.h>
54 #ifdef HAVE_NCURSES_NCURSES_H
55 #include <ncurses/ncurses.h>
62 #define __NORETURN __attribute__((__noreturn__))
67 static void __NORETURN die(const char *err, ...);
68 static void warn(const char *msg, ...);
69 static void report(const char *msg, ...);
70 static void set_nonblocking_input(bool loading);
71 static size_t utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve);
72 static int load_refs(void);
74 #define ABS(x) ((x) >= 0 ? (x) : -(x))
75 #define MIN(x, y) ((x) < (y) ? (x) : (y))
77 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
78 #define STRING_SIZE(x) (sizeof(x) - 1)
80 #define SIZEOF_STR 1024 /* Default string size. */
81 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
82 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL. */
83 #define SIZEOF_ARG 32 /* Default argument array size. */
87 #define REVGRAPH_INIT 'I'
88 #define REVGRAPH_MERGE 'M'
89 #define REVGRAPH_BRANCH '+'
90 #define REVGRAPH_COMMIT '*'
91 #define REVGRAPH_BOUND '^'
93 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
95 /* This color name can be used to refer to the default term colors. */
96 #define COLOR_DEFAULT (-1)
98 #define ICONV_NONE ((iconv_t) -1)
100 #define ICONV_CONST /* nothing */
103 /* The format and size of the date column in the main view. */
104 #define DATE_FORMAT "%Y-%m-%d %H:%M"
105 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
107 #define AUTHOR_COLS 20
110 /* The default interval between line numbers. */
111 #define NUMBER_INTERVAL 5
115 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
117 #define NULL_ID "0000000000000000000000000000000000000000"
120 #define GIT_CONFIG "config"
123 /* Some ascii-shorthands fitted into the ncurses namespace. */
125 #define KEY_RETURN '\r'
130 char *name; /* Ref name; tag or head names are shortened. */
131 char id[SIZEOF_REV]; /* Commit SHA1 ID */
132 unsigned int head:1; /* Is it the current HEAD? */
133 unsigned int tag:1; /* Is it a tag? */
134 unsigned int ltag:1; /* If so, is the tag local? */
135 unsigned int remote:1; /* Is it a remote ref? */
136 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
137 unsigned int next:1; /* For ref lists: are there more refs? */
140 static struct ref **get_refs(const char *id);
143 FORMAT_ALL, /* Perform replacement in all arguments. */
144 FORMAT_DASH, /* Perform replacement up until "--". */
145 FORMAT_NONE /* No replacement should be performed. */
148 static bool format_argv(const char *dst[], const char *src[], enum format_flags flags);
157 set_from_int_map(struct int_map *map, size_t map_size,
158 int *value, const char *name, int namelen)
163 for (i = 0; i < map_size; i++)
164 if (namelen == map[i].namelen &&
165 !strncasecmp(name, map[i].name, namelen)) {
166 *value = map[i].value;
180 typedef enum input_status (*input_handler)(void *data, char *buf, int c);
182 static char *prompt_input(const char *prompt, input_handler handler, void *data);
183 static bool prompt_yesno(const char *prompt);
190 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
192 if (srclen > dstlen - 1)
195 strncpy(dst, src, srclen);
199 /* Shorthands for safely copying into a fixed buffer. */
201 #define string_copy(dst, src) \
202 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
204 #define string_ncopy(dst, src, srclen) \
205 string_ncopy_do(dst, sizeof(dst), src, srclen)
207 #define string_copy_rev(dst, src) \
208 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
210 #define string_add(dst, from, src) \
211 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
214 chomp_string(char *name)
218 while (isspace(*name))
221 namelen = strlen(name) - 1;
222 while (namelen > 0 && isspace(name[namelen]))
229 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
232 size_t pos = bufpos ? *bufpos : 0;
235 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
241 return pos >= bufsize ? FALSE : TRUE;
244 #define string_format(buf, fmt, args...) \
245 string_nformat(buf, sizeof(buf), NULL, fmt, args)
247 #define string_format_from(buf, from, fmt, args...) \
248 string_nformat(buf, sizeof(buf), from, fmt, args)
251 string_enum_compare(const char *str1, const char *str2, int len)
255 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
257 /* Diff-Header == DIFF_HEADER */
258 for (i = 0; i < len; i++) {
259 if (toupper(str1[i]) == toupper(str2[i]))
262 if (string_enum_sep(str1[i]) &&
263 string_enum_sep(str2[i]))
266 return str1[i] - str2[i];
272 #define prefixcmp(str1, str2) \
273 strncmp(str1, str2, STRING_SIZE(str2))
276 suffixcmp(const char *str, int slen, const char *suffix)
278 size_t len = slen >= 0 ? slen : strlen(str);
279 size_t suffixlen = strlen(suffix);
281 return suffixlen < len ? strcmp(str + len - suffixlen, suffix) : -1;
286 argv_from_string(const char *argv[SIZEOF_ARG], int *argc, char *cmd)
290 while (*cmd && *argc < SIZEOF_ARG && (valuelen = strcspn(cmd, " \t"))) {
291 bool advance = cmd[valuelen] != 0;
294 argv[(*argc)++] = chomp_string(cmd);
295 cmd = chomp_string(cmd + valuelen + advance);
298 if (*argc < SIZEOF_ARG)
300 return *argc < SIZEOF_ARG;
304 argv_from_env(const char **argv, const char *name)
306 char *env = argv ? getenv(name) : NULL;
311 if (env && !argv_from_string(argv, &argc, env))
312 die("Too many arguments in the `%s` environment variable", name);
317 * Executing external commands.
321 IO_FD, /* File descriptor based IO. */
322 IO_BG, /* Execute command in the background. */
323 IO_FG, /* Execute command with same std{in,out,err}. */
324 IO_RD, /* Read only fork+exec IO. */
325 IO_WR, /* Write only fork+exec IO. */
326 IO_AP, /* Append fork+exec output to file. */
330 enum io_type type; /* The requested type of pipe. */
331 const char *dir; /* Directory from which to execute. */
332 pid_t pid; /* Pipe for reading or writing. */
333 int pipe; /* Pipe end for reading or writing. */
334 int error; /* Error status. */
335 const char *argv[SIZEOF_ARG]; /* Shell command arguments. */
336 char *buf; /* Read buffer. */
337 size_t bufalloc; /* Allocated buffer size. */
338 size_t bufsize; /* Buffer content size. */
339 char *bufpos; /* Current buffer position. */
340 unsigned int eof:1; /* Has end of file been reached. */
344 reset_io(struct io *io)
348 io->buf = io->bufpos = NULL;
349 io->bufalloc = io->bufsize = 0;
355 init_io(struct io *io, const char *dir, enum io_type type)
363 init_io_rd(struct io *io, const char *argv[], const char *dir,
364 enum format_flags flags)
366 init_io(io, dir, IO_RD);
367 return format_argv(io->argv, argv, flags);
371 io_open(struct io *io, const char *name)
373 init_io(io, NULL, IO_FD);
374 io->pipe = *name ? open(name, O_RDONLY) : STDIN_FILENO;
375 return io->pipe != -1;
379 kill_io(struct io *io)
381 return io->pid == 0 || kill(io->pid, SIGKILL) != -1;
385 done_io(struct io *io)
396 pid_t waiting = waitpid(pid, &status, 0);
401 report("waitpid failed (%s)", strerror(errno));
405 return waiting == pid &&
406 !WIFSIGNALED(status) &&
408 !WEXITSTATUS(status);
415 start_io(struct io *io)
417 int pipefds[2] = { -1, -1 };
419 if (io->type == IO_FD)
422 if ((io->type == IO_RD || io->type == IO_WR) &&
425 else if (io->type == IO_AP)
426 pipefds[1] = io->pipe;
428 if ((io->pid = fork())) {
429 if (pipefds[!(io->type == IO_WR)] != -1)
430 close(pipefds[!(io->type == IO_WR)]);
432 io->pipe = pipefds[!!(io->type == IO_WR)];
437 if (io->type != IO_FG) {
438 int devnull = open("/dev/null", O_RDWR);
439 int readfd = io->type == IO_WR ? pipefds[0] : devnull;
440 int writefd = (io->type == IO_RD || io->type == IO_AP)
441 ? pipefds[1] : devnull;
443 dup2(readfd, STDIN_FILENO);
444 dup2(writefd, STDOUT_FILENO);
445 dup2(devnull, STDERR_FILENO);
448 if (pipefds[0] != -1)
450 if (pipefds[1] != -1)
454 if (io->dir && *io->dir && chdir(io->dir) == -1)
455 die("Failed to change directory: %s", strerror(errno));
457 execvp(io->argv[0], (char *const*) io->argv);
458 die("Failed to execute program: %s", strerror(errno));
461 if (pipefds[!!(io->type == IO_WR)] != -1)
462 close(pipefds[!!(io->type == IO_WR)]);
467 run_io(struct io *io, const char **argv, const char *dir, enum io_type type)
469 init_io(io, dir, type);
470 if (!format_argv(io->argv, argv, FORMAT_NONE))
476 run_io_do(struct io *io)
478 return start_io(io) && done_io(io);
482 run_io_bg(const char **argv)
486 init_io(&io, NULL, IO_BG);
487 if (!format_argv(io.argv, argv, FORMAT_NONE))
489 return run_io_do(&io);
493 run_io_fg(const char **argv, const char *dir)
497 init_io(&io, dir, IO_FG);
498 if (!format_argv(io.argv, argv, FORMAT_NONE))
500 return run_io_do(&io);
504 run_io_append(const char **argv, enum format_flags flags, int fd)
508 init_io(&io, NULL, IO_AP);
510 if (format_argv(io.argv, argv, flags))
511 return run_io_do(&io);
517 run_io_rd(struct io *io, const char **argv, enum format_flags flags)
519 return init_io_rd(io, argv, NULL, flags) && start_io(io);
523 io_eof(struct io *io)
529 io_error(struct io *io)
535 io_strerror(struct io *io)
537 return strerror(io->error);
541 io_can_read(struct io *io)
543 struct timeval tv = { 0, 500 };
547 FD_SET(io->pipe, &fds);
549 return select(io->pipe + 1, &fds, NULL, NULL, &tv) > 0;
553 io_read(struct io *io, void *buf, size_t bufsize)
556 ssize_t readsize = read(io->pipe, buf, bufsize);
558 if (readsize < 0 && (errno == EAGAIN || errno == EINTR))
560 else if (readsize == -1)
562 else if (readsize == 0)
569 io_get(struct io *io, int c, bool can_read)
575 io->buf = io->bufpos = malloc(BUFSIZ);
578 io->bufalloc = BUFSIZ;
583 if (io->bufsize > 0) {
584 eol = memchr(io->bufpos, c, io->bufsize);
586 char *line = io->bufpos;
589 io->bufpos = eol + 1;
590 io->bufsize -= io->bufpos - line;
597 io->bufpos[io->bufsize] = 0;
607 if (io->bufsize > 0 && io->bufpos > io->buf)
608 memmove(io->buf, io->bufpos, io->bufsize);
610 io->bufpos = io->buf;
611 readsize = io_read(io, io->buf + io->bufsize, io->bufalloc - io->bufsize);
614 io->bufsize += readsize;
619 io_write(struct io *io, const void *buf, size_t bufsize)
623 while (!io_error(io) && written < bufsize) {
626 size = write(io->pipe, buf + written, bufsize - written);
627 if (size < 0 && (errno == EAGAIN || errno == EINTR))
635 return written == bufsize;
639 run_io_buf(const char **argv, char buf[], size_t bufsize)
644 if (!run_io_rd(&io, argv, FORMAT_NONE))
647 io.buf = io.bufpos = buf;
648 io.bufalloc = bufsize;
649 error = !io_get(&io, '\n', TRUE) && io_error(&io);
652 return done_io(&io) || error;
655 static int read_properties(struct io *io, const char *separators, int (*read)(char *, size_t, char *, size_t));
662 /* XXX: Keep the view request first and in sync with views[]. */ \
663 REQ_GROUP("View switching") \
664 REQ_(VIEW_MAIN, "Show main view"), \
665 REQ_(VIEW_DIFF, "Show diff view"), \
666 REQ_(VIEW_LOG, "Show log view"), \
667 REQ_(VIEW_TREE, "Show tree view"), \
668 REQ_(VIEW_BLOB, "Show blob view"), \
669 REQ_(VIEW_BLAME, "Show blame view"), \
670 REQ_(VIEW_HELP, "Show help page"), \
671 REQ_(VIEW_PAGER, "Show pager view"), \
672 REQ_(VIEW_STATUS, "Show status view"), \
673 REQ_(VIEW_STAGE, "Show stage view"), \
675 REQ_GROUP("View manipulation") \
676 REQ_(ENTER, "Enter current line and scroll"), \
677 REQ_(NEXT, "Move to next"), \
678 REQ_(PREVIOUS, "Move to previous"), \
679 REQ_(PARENT, "Move to parent"), \
680 REQ_(VIEW_NEXT, "Move focus to next view"), \
681 REQ_(REFRESH, "Reload and refresh"), \
682 REQ_(MAXIMIZE, "Maximize the current view"), \
683 REQ_(VIEW_CLOSE, "Close the current view"), \
684 REQ_(QUIT, "Close all views and quit"), \
686 REQ_GROUP("View specific requests") \
687 REQ_(STATUS_UPDATE, "Update file status"), \
688 REQ_(STATUS_REVERT, "Revert file changes"), \
689 REQ_(STATUS_MERGE, "Merge file using external tool"), \
690 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
692 REQ_GROUP("Cursor navigation") \
693 REQ_(MOVE_UP, "Move cursor one line up"), \
694 REQ_(MOVE_DOWN, "Move cursor one line down"), \
695 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
696 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
697 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
698 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
700 REQ_GROUP("Scrolling") \
701 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
702 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
703 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
704 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
706 REQ_GROUP("Searching") \
707 REQ_(SEARCH, "Search the view"), \
708 REQ_(SEARCH_BACK, "Search backwards in the view"), \
709 REQ_(FIND_NEXT, "Find next search match"), \
710 REQ_(FIND_PREV, "Find previous search match"), \
712 REQ_GROUP("Option manipulation") \
713 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
714 REQ_(TOGGLE_DATE, "Toggle date display"), \
715 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
716 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
717 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
720 REQ_(PROMPT, "Bring up the prompt"), \
721 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
722 REQ_(SHOW_VERSION, "Show version information"), \
723 REQ_(STOP_LOADING, "Stop all loading views"), \
724 REQ_(EDIT, "Open in editor"), \
725 REQ_(NONE, "Do nothing")
728 /* User action requests. */
730 #define REQ_GROUP(help)
731 #define REQ_(req, help) REQ_##req
733 /* Offset all requests to avoid conflicts with ncurses getch values. */
734 REQ_OFFSET = KEY_MAX + 1,
741 struct request_info {
742 enum request request;
748 static struct request_info req_info[] = {
749 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
750 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
757 get_request(const char *name)
759 int namelen = strlen(name);
762 for (i = 0; i < ARRAY_SIZE(req_info); i++)
763 if (req_info[i].namelen == namelen &&
764 !string_enum_compare(req_info[i].name, name, namelen))
765 return req_info[i].request;
775 static const char usage[] =
776 "tig " TIG_VERSION " (" __DATE__ ")\n"
778 "Usage: tig [options] [revs] [--] [paths]\n"
779 " or: tig show [options] [revs] [--] [paths]\n"
780 " or: tig blame [rev] path\n"
782 " or: tig < [git command output]\n"
785 " -v, --version Show version and exit\n"
786 " -h, --help Show help message and exit";
788 /* Option and state variables. */
789 static bool opt_date = TRUE;
790 static bool opt_author = TRUE;
791 static bool opt_line_number = FALSE;
792 static bool opt_line_graphics = TRUE;
793 static bool opt_rev_graph = FALSE;
794 static bool opt_show_refs = TRUE;
795 static int opt_num_interval = NUMBER_INTERVAL;
796 static int opt_tab_size = TAB_SIZE;
797 static int opt_author_cols = AUTHOR_COLS-1;
798 static char opt_path[SIZEOF_STR] = "";
799 static char opt_file[SIZEOF_STR] = "";
800 static char opt_ref[SIZEOF_REF] = "";
801 static char opt_head[SIZEOF_REF] = "";
802 static char opt_head_rev[SIZEOF_REV] = "";
803 static char opt_remote[SIZEOF_REF] = "";
804 static char opt_encoding[20] = "UTF-8";
805 static bool opt_utf8 = TRUE;
806 static char opt_codeset[20] = "UTF-8";
807 static iconv_t opt_iconv = ICONV_NONE;
808 static char opt_search[SIZEOF_STR] = "";
809 static char opt_cdup[SIZEOF_STR] = "";
810 static char opt_prefix[SIZEOF_STR] = "";
811 static char opt_git_dir[SIZEOF_STR] = "";
812 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
813 static char opt_editor[SIZEOF_STR] = "";
814 static FILE *opt_tty = NULL;
816 #define is_initial_commit() (!*opt_head_rev)
817 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || !strcmp(opt_head_rev, (rev)))
820 parse_options(int argc, const char *argv[], const char ***run_argv)
822 enum request request = REQ_VIEW_MAIN;
823 const char *subcommand;
824 bool seen_dashdash = FALSE;
825 /* XXX: This is vulnerable to the user overriding options
826 * required for the main view parser. */
827 static const char *custom_argv[SIZEOF_ARG] = {
828 "git", "log", "--no-color", "--pretty=raw", "--parents",
833 if (!isatty(STDIN_FILENO))
834 return REQ_VIEW_PAGER;
837 return REQ_VIEW_MAIN;
839 subcommand = argv[1];
840 if (!strcmp(subcommand, "status") || !strcmp(subcommand, "-S")) {
841 if (!strcmp(subcommand, "-S"))
842 warn("`-S' has been deprecated; use `tig status' instead");
844 warn("ignoring arguments after `%s'", subcommand);
845 return REQ_VIEW_STATUS;
847 } else if (!strcmp(subcommand, "blame")) {
848 if (argc <= 2 || argc > 4)
849 die("invalid number of options to blame\n\n%s", usage);
853 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
857 string_ncopy(opt_file, argv[i], strlen(argv[i]));
858 return REQ_VIEW_BLAME;
860 } else if (!strcmp(subcommand, "show")) {
861 request = REQ_VIEW_DIFF;
863 } else if (!strcmp(subcommand, "log") || !strcmp(subcommand, "diff")) {
864 request = subcommand[0] == 'l' ? REQ_VIEW_LOG : REQ_VIEW_DIFF;
865 warn("`tig %s' has been deprecated", subcommand);
872 custom_argv[1] = subcommand;
876 for (i = 1 + !!subcommand; i < argc; i++) {
877 const char *opt = argv[i];
879 if (seen_dashdash || !strcmp(opt, "--")) {
880 seen_dashdash = TRUE;
882 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
883 printf("tig version %s\n", TIG_VERSION);
886 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
887 printf("%s\n", usage);
891 custom_argv[j++] = opt;
892 if (j >= ARRAY_SIZE(custom_argv))
893 die("command too long");
896 custom_argv[j] = NULL;
897 *run_argv = custom_argv;
904 * Line-oriented content detection.
908 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
909 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
910 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
911 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
912 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
913 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
914 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
915 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
916 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
917 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
918 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
919 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
920 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
921 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
922 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
923 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
924 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
925 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
926 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
927 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
928 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
929 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
930 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
931 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
932 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
933 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
934 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
935 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
936 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
937 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
938 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
939 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
940 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
941 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
942 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
943 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
944 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
945 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
946 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
947 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
948 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
949 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
950 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
951 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
952 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
953 LINE(TREE_PARENT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD), \
954 LINE(TREE_MODE, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
955 LINE(TREE_DIR, "", COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), \
956 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
957 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
958 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
959 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
960 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
961 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
962 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
963 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
966 #define LINE(type, line, fg, bg, attr) \
974 const char *name; /* Option name. */
975 int namelen; /* Size of option name. */
976 const char *line; /* The start of line to match. */
977 int linelen; /* Size of string to match. */
978 int fg, bg, attr; /* Color and text attributes for the lines. */
981 static struct line_info line_info[] = {
982 #define LINE(type, line, fg, bg, attr) \
983 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
988 static enum line_type
989 get_line_type(const char *line)
991 int linelen = strlen(line);
994 for (type = 0; type < ARRAY_SIZE(line_info); type++)
995 /* Case insensitive search matches Signed-off-by lines better. */
996 if (linelen >= line_info[type].linelen &&
997 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
1000 return LINE_DEFAULT;
1004 get_line_attr(enum line_type type)
1006 assert(type < ARRAY_SIZE(line_info));
1007 return COLOR_PAIR(type) | line_info[type].attr;
1010 static struct line_info *
1011 get_line_info(const char *name)
1013 size_t namelen = strlen(name);
1014 enum line_type type;
1016 for (type = 0; type < ARRAY_SIZE(line_info); type++)
1017 if (namelen == line_info[type].namelen &&
1018 !string_enum_compare(line_info[type].name, name, namelen))
1019 return &line_info[type];
1027 int default_bg = line_info[LINE_DEFAULT].bg;
1028 int default_fg = line_info[LINE_DEFAULT].fg;
1029 enum line_type type;
1033 if (assume_default_colors(default_fg, default_bg) == ERR) {
1034 default_bg = COLOR_BLACK;
1035 default_fg = COLOR_WHITE;
1038 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
1039 struct line_info *info = &line_info[type];
1040 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
1041 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
1043 init_pair(type, fg, bg);
1048 enum line_type type;
1051 unsigned int selected:1;
1052 unsigned int dirty:1;
1053 unsigned int cleareol:1;
1055 void *data; /* User data */
1065 enum request request;
1068 static struct keybinding default_keybindings[] = {
1069 /* View switching */
1070 { 'm', REQ_VIEW_MAIN },
1071 { 'd', REQ_VIEW_DIFF },
1072 { 'l', REQ_VIEW_LOG },
1073 { 't', REQ_VIEW_TREE },
1074 { 'f', REQ_VIEW_BLOB },
1075 { 'B', REQ_VIEW_BLAME },
1076 { 'p', REQ_VIEW_PAGER },
1077 { 'h', REQ_VIEW_HELP },
1078 { 'S', REQ_VIEW_STATUS },
1079 { 'c', REQ_VIEW_STAGE },
1081 /* View manipulation */
1082 { 'q', REQ_VIEW_CLOSE },
1083 { KEY_TAB, REQ_VIEW_NEXT },
1084 { KEY_RETURN, REQ_ENTER },
1085 { KEY_UP, REQ_PREVIOUS },
1086 { KEY_DOWN, REQ_NEXT },
1087 { 'R', REQ_REFRESH },
1088 { KEY_F(5), REQ_REFRESH },
1089 { 'O', REQ_MAXIMIZE },
1091 /* Cursor navigation */
1092 { 'k', REQ_MOVE_UP },
1093 { 'j', REQ_MOVE_DOWN },
1094 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1095 { KEY_END, REQ_MOVE_LAST_LINE },
1096 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1097 { ' ', REQ_MOVE_PAGE_DOWN },
1098 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1099 { 'b', REQ_MOVE_PAGE_UP },
1100 { '-', REQ_MOVE_PAGE_UP },
1103 { KEY_IC, REQ_SCROLL_LINE_UP },
1104 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1105 { 'w', REQ_SCROLL_PAGE_UP },
1106 { 's', REQ_SCROLL_PAGE_DOWN },
1109 { '/', REQ_SEARCH },
1110 { '?', REQ_SEARCH_BACK },
1111 { 'n', REQ_FIND_NEXT },
1112 { 'N', REQ_FIND_PREV },
1116 { 'z', REQ_STOP_LOADING },
1117 { 'v', REQ_SHOW_VERSION },
1118 { 'r', REQ_SCREEN_REDRAW },
1119 { '.', REQ_TOGGLE_LINENO },
1120 { 'D', REQ_TOGGLE_DATE },
1121 { 'A', REQ_TOGGLE_AUTHOR },
1122 { 'g', REQ_TOGGLE_REV_GRAPH },
1123 { 'F', REQ_TOGGLE_REFS },
1124 { ':', REQ_PROMPT },
1125 { 'u', REQ_STATUS_UPDATE },
1126 { '!', REQ_STATUS_REVERT },
1127 { 'M', REQ_STATUS_MERGE },
1128 { '@', REQ_STAGE_NEXT },
1129 { ',', REQ_PARENT },
1133 #define KEYMAP_INFO \
1147 #define KEYMAP_(name) KEYMAP_##name
1152 static struct int_map keymap_table[] = {
1153 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
1158 #define set_keymap(map, name) \
1159 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
1161 struct keybinding_table {
1162 struct keybinding *data;
1166 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1169 add_keybinding(enum keymap keymap, enum request request, int key)
1171 struct keybinding_table *table = &keybindings[keymap];
1173 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1175 die("Failed to allocate keybinding");
1176 table->data[table->size].alias = key;
1177 table->data[table->size++].request = request;
1180 /* Looks for a key binding first in the given map, then in the generic map, and
1181 * lastly in the default keybindings. */
1183 get_keybinding(enum keymap keymap, int key)
1187 for (i = 0; i < keybindings[keymap].size; i++)
1188 if (keybindings[keymap].data[i].alias == key)
1189 return keybindings[keymap].data[i].request;
1191 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1192 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1193 return keybindings[KEYMAP_GENERIC].data[i].request;
1195 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1196 if (default_keybindings[i].alias == key)
1197 return default_keybindings[i].request;
1199 return (enum request) key;
1208 static struct key key_table[] = {
1209 { "Enter", KEY_RETURN },
1211 { "Backspace", KEY_BACKSPACE },
1213 { "Escape", KEY_ESC },
1214 { "Left", KEY_LEFT },
1215 { "Right", KEY_RIGHT },
1217 { "Down", KEY_DOWN },
1218 { "Insert", KEY_IC },
1219 { "Delete", KEY_DC },
1221 { "Home", KEY_HOME },
1223 { "PageUp", KEY_PPAGE },
1224 { "PageDown", KEY_NPAGE },
1234 { "F10", KEY_F(10) },
1235 { "F11", KEY_F(11) },
1236 { "F12", KEY_F(12) },
1240 get_key_value(const char *name)
1244 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1245 if (!strcasecmp(key_table[i].name, name))
1246 return key_table[i].value;
1248 if (strlen(name) == 1 && isprint(*name))
1255 get_key_name(int key_value)
1257 static char key_char[] = "'X'";
1258 const char *seq = NULL;
1261 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1262 if (key_table[key].value == key_value)
1263 seq = key_table[key].name;
1267 isprint(key_value)) {
1268 key_char[1] = (char) key_value;
1272 return seq ? seq : "(no key)";
1276 get_key(enum request request)
1278 static char buf[BUFSIZ];
1285 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1286 struct keybinding *keybinding = &default_keybindings[i];
1288 if (keybinding->request != request)
1291 if (!string_format_from(buf, &pos, "%s%s", sep,
1292 get_key_name(keybinding->alias)))
1293 return "Too many keybindings!";
1300 struct run_request {
1303 const char *argv[SIZEOF_ARG];
1306 static struct run_request *run_request;
1307 static size_t run_requests;
1310 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1312 struct run_request *req;
1314 if (argc >= ARRAY_SIZE(req->argv) - 1)
1317 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1322 req = &run_request[run_requests];
1323 req->keymap = keymap;
1325 req->argv[0] = NULL;
1327 if (!format_argv(req->argv, argv, FORMAT_NONE))
1330 return REQ_NONE + ++run_requests;
1333 static struct run_request *
1334 get_run_request(enum request request)
1336 if (request <= REQ_NONE)
1338 return &run_request[request - REQ_NONE - 1];
1342 add_builtin_run_requests(void)
1344 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1345 const char *gc[] = { "git", "gc", NULL };
1352 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1353 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1357 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1360 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1361 if (req != REQ_NONE)
1362 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1367 * User config file handling.
1370 static struct int_map color_map[] = {
1371 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1383 #define set_color(color, name) \
1384 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1386 static struct int_map attr_map[] = {
1387 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1394 ATTR_MAP(UNDERLINE),
1397 #define set_attribute(attr, name) \
1398 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1400 static int config_lineno;
1401 static bool config_errors;
1402 static const char *config_msg;
1404 /* Wants: object fgcolor bgcolor [attr] */
1406 option_color_command(int argc, const char *argv[])
1408 struct line_info *info;
1410 if (argc != 3 && argc != 4) {
1411 config_msg = "Wrong number of arguments given to color command";
1415 info = get_line_info(argv[0]);
1417 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1418 info = get_line_info("delimiter");
1420 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1421 info = get_line_info("date");
1424 config_msg = "Unknown color name";
1429 if (set_color(&info->fg, argv[1]) == ERR ||
1430 set_color(&info->bg, argv[2]) == ERR) {
1431 config_msg = "Unknown color";
1435 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1436 config_msg = "Unknown attribute";
1443 static bool parse_bool(const char *s)
1445 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1446 !strcmp(s, "yes")) ? TRUE : FALSE;
1450 parse_int(const char *s, int default_value, int min, int max)
1452 int value = atoi(s);
1454 return (value < min || value > max) ? default_value : value;
1457 /* Wants: name = value */
1459 option_set_command(int argc, const char *argv[])
1462 config_msg = "Wrong number of arguments given to set command";
1466 if (strcmp(argv[1], "=")) {
1467 config_msg = "No value assigned";
1471 if (!strcmp(argv[0], "show-author")) {
1472 opt_author = parse_bool(argv[2]);
1476 if (!strcmp(argv[0], "show-date")) {
1477 opt_date = parse_bool(argv[2]);
1481 if (!strcmp(argv[0], "show-rev-graph")) {
1482 opt_rev_graph = parse_bool(argv[2]);
1486 if (!strcmp(argv[0], "show-refs")) {
1487 opt_show_refs = parse_bool(argv[2]);
1491 if (!strcmp(argv[0], "show-line-numbers")) {
1492 opt_line_number = parse_bool(argv[2]);
1496 if (!strcmp(argv[0], "line-graphics")) {
1497 opt_line_graphics = parse_bool(argv[2]);
1501 if (!strcmp(argv[0], "line-number-interval")) {
1502 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1506 if (!strcmp(argv[0], "author-width")) {
1507 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1511 if (!strcmp(argv[0], "tab-size")) {
1512 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1516 if (!strcmp(argv[0], "commit-encoding")) {
1517 const char *arg = argv[2];
1518 int arglen = strlen(arg);
1523 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1524 config_msg = "Unmatched quotation";
1527 arg += 1; arglen -= 2;
1529 string_ncopy(opt_encoding, arg, strlen(arg));
1534 config_msg = "Unknown variable name";
1538 /* Wants: mode request key */
1540 option_bind_command(int argc, const char *argv[])
1542 enum request request;
1547 config_msg = "Wrong number of arguments given to bind command";
1551 if (set_keymap(&keymap, argv[0]) == ERR) {
1552 config_msg = "Unknown key map";
1556 key = get_key_value(argv[1]);
1558 config_msg = "Unknown key";
1562 request = get_request(argv[2]);
1563 if (request == REQ_NONE) {
1566 enum request request;
1568 { "cherry-pick", REQ_NONE },
1569 { "screen-resize", REQ_NONE },
1570 { "tree-parent", REQ_PARENT },
1572 size_t namelen = strlen(argv[2]);
1575 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1576 if (namelen != strlen(obsolete[i].name) ||
1577 string_enum_compare(obsolete[i].name, argv[2], namelen))
1579 if (obsolete[i].request != REQ_NONE)
1580 add_keybinding(keymap, obsolete[i].request, key);
1581 config_msg = "Obsolete request name";
1585 if (request == REQ_NONE && *argv[2]++ == '!')
1586 request = add_run_request(keymap, key, argc - 2, argv + 2);
1587 if (request == REQ_NONE) {
1588 config_msg = "Unknown request name";
1592 add_keybinding(keymap, request, key);
1598 set_option(const char *opt, char *value)
1600 const char *argv[SIZEOF_ARG];
1603 if (!argv_from_string(argv, &argc, value)) {
1604 config_msg = "Too many option arguments";
1608 if (!strcmp(opt, "color"))
1609 return option_color_command(argc, argv);
1611 if (!strcmp(opt, "set"))
1612 return option_set_command(argc, argv);
1614 if (!strcmp(opt, "bind"))
1615 return option_bind_command(argc, argv);
1617 config_msg = "Unknown option command";
1622 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1627 config_msg = "Internal error";
1629 /* Check for comment markers, since read_properties() will
1630 * only ensure opt and value are split at first " \t". */
1631 optlen = strcspn(opt, "#");
1635 if (opt[optlen] != 0) {
1636 config_msg = "No option value";
1640 /* Look for comment endings in the value. */
1641 size_t len = strcspn(value, "#");
1643 if (len < valuelen) {
1645 value[valuelen] = 0;
1648 status = set_option(opt, value);
1651 if (status == ERR) {
1652 fprintf(stderr, "Error on line %d, near '%.*s': %s\n",
1653 config_lineno, (int) optlen, opt, config_msg);
1654 config_errors = TRUE;
1657 /* Always keep going if errors are encountered. */
1662 load_option_file(const char *path)
1666 /* It's ok that the file doesn't exist. */
1667 if (!io_open(&io, path))
1671 config_errors = FALSE;
1673 if (read_properties(&io, " \t", read_option) == ERR ||
1674 config_errors == TRUE)
1675 fprintf(stderr, "Errors while loading %s.\n", path);
1681 const char *home = getenv("HOME");
1682 const char *tigrc_user = getenv("TIGRC_USER");
1683 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1684 char buf[SIZEOF_STR];
1686 add_builtin_run_requests();
1688 if (!tigrc_system) {
1689 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1693 load_option_file(tigrc_system);
1696 if (!home || !string_format(buf, "%s/.tigrc", home))
1700 load_option_file(tigrc_user);
1713 /* The display array of active views and the index of the current view. */
1714 static struct view *display[2];
1715 static unsigned int current_view;
1717 /* Reading from the prompt? */
1718 static bool input_mode = FALSE;
1720 #define foreach_displayed_view(view, i) \
1721 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1723 #define displayed_views() (display[1] != NULL ? 2 : 1)
1725 /* Current head and commit ID */
1726 static char ref_blob[SIZEOF_REF] = "";
1727 static char ref_commit[SIZEOF_REF] = "HEAD";
1728 static char ref_head[SIZEOF_REF] = "HEAD";
1731 const char *name; /* View name */
1732 const char *cmd_env; /* Command line set via environment */
1733 const char *id; /* Points to either of ref_{head,commit,blob} */
1735 struct view_ops *ops; /* View operations */
1737 enum keymap keymap; /* What keymap does this view have */
1738 bool git_dir; /* Whether the view requires a git directory. */
1740 char ref[SIZEOF_REF]; /* Hovered commit reference */
1741 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1743 int height, width; /* The width and height of the main window */
1744 WINDOW *win; /* The main window */
1745 WINDOW *title; /* The title window living below the main window */
1748 unsigned long offset; /* Offset of the window top */
1749 unsigned long lineno; /* Current line number */
1750 unsigned long p_offset; /* Previous offset of the window top */
1751 unsigned long p_lineno; /* Previous current line number */
1752 bool p_restore; /* Should the previous position be restored. */
1755 char grep[SIZEOF_STR]; /* Search string */
1756 regex_t *regex; /* Pre-compiled regex */
1758 /* If non-NULL, points to the view that opened this view. If this view
1759 * is closed tig will switch back to the parent view. */
1760 struct view *parent;
1763 size_t lines; /* Total number of lines */
1764 struct line *line; /* Line index */
1765 size_t line_alloc; /* Total number of allocated lines */
1766 unsigned int digits; /* Number of digits in the lines member. */
1769 struct line *curline; /* Line currently being drawn. */
1770 enum line_type curtype; /* Attribute currently used for drawing. */
1771 unsigned long col; /* Column when drawing. */
1781 /* What type of content being displayed. Used in the title bar. */
1783 /* Default command arguments. */
1785 /* Open and reads in all view content. */
1786 bool (*open)(struct view *view);
1787 /* Read one line; updates view->line. */
1788 bool (*read)(struct view *view, char *data);
1789 /* Draw one line; @lineno must be < view->height. */
1790 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1791 /* Depending on view handle a special requests. */
1792 enum request (*request)(struct view *view, enum request request, struct line *line);
1793 /* Search for regex in a line. */
1794 bool (*grep)(struct view *view, struct line *line);
1796 void (*select)(struct view *view, struct line *line);
1799 static struct view_ops blame_ops;
1800 static struct view_ops blob_ops;
1801 static struct view_ops diff_ops;
1802 static struct view_ops help_ops;
1803 static struct view_ops log_ops;
1804 static struct view_ops main_ops;
1805 static struct view_ops pager_ops;
1806 static struct view_ops stage_ops;
1807 static struct view_ops status_ops;
1808 static struct view_ops tree_ops;
1810 #define VIEW_STR(name, env, ref, ops, map, git) \
1811 { name, #env, ref, ops, map, git }
1813 #define VIEW_(id, name, ops, git, ref) \
1814 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1817 static struct view views[] = {
1818 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1819 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1820 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1821 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1822 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1823 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1824 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1825 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1826 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1827 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1830 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1831 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1833 #define foreach_view(view, i) \
1834 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1836 #define view_is_displayed(view) \
1837 (view == display[0] || view == display[1])
1844 static int line_graphics[] = {
1845 /* LINE_GRAPHIC_VLINE: */ '|'
1849 set_view_attr(struct view *view, enum line_type type)
1851 if (!view->curline->selected && view->curtype != type) {
1852 wattrset(view->win, get_line_attr(type));
1853 wchgat(view->win, -1, 0, type, NULL);
1854 view->curtype = type;
1859 draw_chars(struct view *view, enum line_type type, const char *string,
1860 int max_len, bool use_tilde)
1864 int trimmed = FALSE;
1870 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1872 col = len = strlen(string);
1873 if (len > max_len) {
1877 col = len = max_len;
1882 set_view_attr(view, type);
1883 waddnstr(view->win, string, len);
1884 if (trimmed && use_tilde) {
1885 set_view_attr(view, LINE_DELIMITER);
1886 waddch(view->win, '~');
1894 draw_space(struct view *view, enum line_type type, int max, int spaces)
1896 static char space[] = " ";
1899 spaces = MIN(max, spaces);
1901 while (spaces > 0) {
1902 int len = MIN(spaces, sizeof(space) - 1);
1904 col += draw_chars(view, type, space, spaces, FALSE);
1912 draw_lineno(struct view *view, unsigned int lineno)
1915 int digits3 = view->digits < 3 ? 3 : view->digits;
1916 int max_number = MIN(digits3, STRING_SIZE(number));
1917 int max = view->width - view->col;
1920 if (max < max_number)
1923 lineno += view->offset + 1;
1924 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1925 static char fmt[] = "%1ld";
1927 if (view->digits <= 9)
1928 fmt[1] = '0' + digits3;
1930 if (!string_format(number, fmt, lineno))
1932 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1934 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1938 set_view_attr(view, LINE_DEFAULT);
1939 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1944 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1947 return view->width - view->col <= 0;
1951 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1953 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1954 return view->width - view->col <= 0;
1958 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1960 int max = view->width - view->col;
1966 set_view_attr(view, type);
1967 /* Using waddch() instead of waddnstr() ensures that
1968 * they'll be rendered correctly for the cursor line. */
1969 for (i = 0; i < size; i++)
1970 waddch(view->win, graphic[i]);
1974 waddch(view->win, ' ');
1978 return view->width - view->col <= 0;
1982 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1984 int max = MIN(view->width - view->col, len);
1988 col = draw_chars(view, type, text, max - 1, trim);
1990 col = draw_space(view, type, max - 1, max - 1);
1992 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1993 return view->width - view->col <= 0;
1997 draw_date(struct view *view, struct tm *time)
1999 char buf[DATE_COLS];
2004 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
2005 date = timelen ? buf : NULL;
2007 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
2011 draw_author(struct view *view, const char *author)
2013 return draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, TRUE);
2017 draw_view_line(struct view *view, unsigned int lineno)
2020 bool selected = (view->offset + lineno == view->lineno);
2022 assert(view_is_displayed(view));
2024 if (view->offset + lineno >= view->lines)
2027 line = &view->line[view->offset + lineno];
2029 wmove(view->win, lineno, 0);
2031 wclrtoeol(view->win);
2033 view->curline = line;
2034 view->curtype = LINE_NONE;
2035 line->selected = FALSE;
2036 line->dirty = line->cleareol = 0;
2039 set_view_attr(view, LINE_CURSOR);
2040 line->selected = TRUE;
2041 view->ops->select(view, line);
2044 return view->ops->draw(view, line, lineno);
2048 redraw_view_dirty(struct view *view)
2053 for (lineno = 0; lineno < view->height; lineno++) {
2054 if (view->offset + lineno >= view->lines)
2056 if (!view->line[view->offset + lineno].dirty)
2059 if (!draw_view_line(view, lineno))
2066 wnoutrefresh(view->win);
2068 wrefresh(view->win);
2072 redraw_view_from(struct view *view, int lineno)
2074 assert(0 <= lineno && lineno < view->height);
2076 for (; lineno < view->height; lineno++) {
2077 if (!draw_view_line(view, lineno))
2082 wnoutrefresh(view->win);
2084 wrefresh(view->win);
2088 redraw_view(struct view *view)
2091 redraw_view_from(view, 0);
2096 update_display_cursor(struct view *view)
2098 /* Move the cursor to the right-most column of the cursor line.
2100 * XXX: This could turn out to be a bit expensive, but it ensures that
2101 * the cursor does not jump around. */
2103 wmove(view->win, view->lineno - view->offset, view->width - 1);
2104 wrefresh(view->win);
2109 update_view_title(struct view *view)
2111 char buf[SIZEOF_STR];
2112 char state[SIZEOF_STR];
2113 size_t bufpos = 0, statelen = 0;
2115 assert(view_is_displayed(view));
2117 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2118 unsigned int view_lines = view->offset + view->height;
2119 unsigned int lines = view->lines
2120 ? MIN(view_lines, view->lines) * 100 / view->lines
2123 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2132 time_t secs = time(NULL) - view->start_time;
2134 /* Three git seconds are a long time ... */
2136 string_format_from(state, &statelen, " loading %lds", secs);
2139 string_format_from(buf, &bufpos, "[%s]", view->name);
2140 if (*view->ref && bufpos < view->width) {
2141 size_t refsize = strlen(view->ref);
2142 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2144 if (minsize < view->width)
2145 refsize = view->width - minsize + 7;
2146 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2149 if (statelen && bufpos < view->width) {
2150 string_format_from(buf, &bufpos, "%s", state);
2153 if (view == display[current_view])
2154 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2156 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2158 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2159 wclrtoeol(view->title);
2160 wmove(view->title, 0, view->width - 1);
2163 wnoutrefresh(view->title);
2165 wrefresh(view->title);
2169 resize_display(void)
2172 struct view *base = display[0];
2173 struct view *view = display[1] ? display[1] : display[0];
2175 /* Setup window dimensions */
2177 getmaxyx(stdscr, base->height, base->width);
2179 /* Make room for the status window. */
2183 /* Horizontal split. */
2184 view->width = base->width;
2185 view->height = SCALE_SPLIT_VIEW(base->height);
2186 base->height -= view->height;
2188 /* Make room for the title bar. */
2192 /* Make room for the title bar. */
2197 foreach_displayed_view (view, i) {
2199 view->win = newwin(view->height, 0, offset, 0);
2201 die("Failed to create %s view", view->name);
2203 scrollok(view->win, FALSE);
2205 view->title = newwin(1, 0, offset + view->height, 0);
2207 die("Failed to create title window");
2210 wresize(view->win, view->height, view->width);
2211 mvwin(view->win, offset, 0);
2212 mvwin(view->title, offset + view->height, 0);
2215 offset += view->height + 1;
2220 redraw_display(bool clear)
2225 foreach_displayed_view (view, i) {
2229 update_view_title(view);
2232 if (display[current_view])
2233 update_display_cursor(display[current_view]);
2237 toggle_view_option(bool *option, const char *help)
2240 redraw_display(FALSE);
2241 report("%sabling %s", *option ? "En" : "Dis", help);
2248 /* Scrolling backend */
2250 do_scroll_view(struct view *view, int lines)
2252 bool redraw_current_line = FALSE;
2254 /* The rendering expects the new offset. */
2255 view->offset += lines;
2257 assert(0 <= view->offset && view->offset < view->lines);
2260 /* Move current line into the view. */
2261 if (view->lineno < view->offset) {
2262 view->lineno = view->offset;
2263 redraw_current_line = TRUE;
2264 } else if (view->lineno >= view->offset + view->height) {
2265 view->lineno = view->offset + view->height - 1;
2266 redraw_current_line = TRUE;
2269 assert(view->offset <= view->lineno && view->lineno < view->lines);
2271 /* Redraw the whole screen if scrolling is pointless. */
2272 if (view->height < ABS(lines)) {
2276 int line = lines > 0 ? view->height - lines : 0;
2277 int end = line + ABS(lines);
2279 scrollok(view->win, TRUE);
2280 wscrl(view->win, lines);
2281 scrollok(view->win, FALSE);
2283 while (line < end && draw_view_line(view, line))
2286 if (redraw_current_line)
2287 draw_view_line(view, view->lineno - view->offset);
2288 /* FIXME: Stupid hack to workaround bug where the message from
2289 * scrolling up one line when impossible followed by scrolling
2290 * down one line is not removed by the next action. */
2293 wrefresh(view->win);
2299 /* Scroll frontend */
2301 scroll_view(struct view *view, enum request request)
2305 assert(view_is_displayed(view));
2308 case REQ_SCROLL_PAGE_DOWN:
2309 lines = view->height;
2310 case REQ_SCROLL_LINE_DOWN:
2311 if (view->offset + lines > view->lines)
2312 lines = view->lines - view->offset;
2314 if (lines == 0 || view->offset + view->height >= view->lines) {
2315 report("Cannot scroll beyond the last line");
2320 case REQ_SCROLL_PAGE_UP:
2321 lines = view->height;
2322 case REQ_SCROLL_LINE_UP:
2323 if (lines > view->offset)
2324 lines = view->offset;
2327 report("Cannot scroll beyond the first line");
2335 die("request %d not handled in switch", request);
2338 do_scroll_view(view, lines);
2343 move_view(struct view *view, enum request request)
2345 int scroll_steps = 0;
2349 case REQ_MOVE_FIRST_LINE:
2350 steps = -view->lineno;
2353 case REQ_MOVE_LAST_LINE:
2354 steps = view->lines - view->lineno - 1;
2357 case REQ_MOVE_PAGE_UP:
2358 steps = view->height > view->lineno
2359 ? -view->lineno : -view->height;
2362 case REQ_MOVE_PAGE_DOWN:
2363 steps = view->lineno + view->height >= view->lines
2364 ? view->lines - view->lineno - 1 : view->height;
2376 die("request %d not handled in switch", request);
2379 if (steps <= 0 && view->lineno == 0) {
2380 report("Cannot move beyond the first line");
2383 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2384 report("Cannot move beyond the last line");
2388 /* Move the current line */
2389 view->lineno += steps;
2390 assert(0 <= view->lineno && view->lineno < view->lines);
2392 /* Check whether the view needs to be scrolled */
2393 if (view->lineno < view->offset ||
2394 view->lineno >= view->offset + view->height) {
2395 scroll_steps = steps;
2396 if (steps < 0 && -steps > view->offset) {
2397 scroll_steps = -view->offset;
2399 } else if (steps > 0) {
2400 if (view->lineno == view->lines - 1 &&
2401 view->lines > view->height) {
2402 scroll_steps = view->lines - view->offset - 1;
2403 if (scroll_steps >= view->height)
2404 scroll_steps -= view->height - 1;
2409 if (!view_is_displayed(view)) {
2410 view->offset += scroll_steps;
2411 assert(0 <= view->offset && view->offset < view->lines);
2412 view->ops->select(view, &view->line[view->lineno]);
2416 /* Repaint the old "current" line if we be scrolling */
2417 if (ABS(steps) < view->height)
2418 draw_view_line(view, view->lineno - steps - view->offset);
2421 do_scroll_view(view, scroll_steps);
2425 /* Draw the current line */
2426 draw_view_line(view, view->lineno - view->offset);
2428 wrefresh(view->win);
2437 static void search_view(struct view *view, enum request request);
2440 select_view_line(struct view *view, unsigned long lineno)
2442 if (lineno - view->offset >= view->height) {
2443 view->offset = lineno;
2444 view->lineno = lineno;
2445 if (view_is_displayed(view))
2449 unsigned long old_lineno = view->lineno - view->offset;
2451 view->lineno = lineno;
2452 if (view_is_displayed(view)) {
2453 draw_view_line(view, old_lineno);
2454 draw_view_line(view, view->lineno - view->offset);
2455 wrefresh(view->win);
2457 view->ops->select(view, &view->line[view->lineno]);
2463 find_next(struct view *view, enum request request)
2465 unsigned long lineno = view->lineno;
2470 report("No previous search");
2472 search_view(view, request);
2482 case REQ_SEARCH_BACK:
2491 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2492 lineno += direction;
2494 /* Note, lineno is unsigned long so will wrap around in which case it
2495 * will become bigger than view->lines. */
2496 for (; lineno < view->lines; lineno += direction) {
2497 if (view->ops->grep(view, &view->line[lineno])) {
2498 select_view_line(view, lineno);
2499 report("Line %ld matches '%s'", lineno + 1, view->grep);
2504 report("No match found for '%s'", view->grep);
2508 search_view(struct view *view, enum request request)
2513 regfree(view->regex);
2516 view->regex = calloc(1, sizeof(*view->regex));
2521 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2522 if (regex_err != 0) {
2523 char buf[SIZEOF_STR] = "unknown error";
2525 regerror(regex_err, view->regex, buf, sizeof(buf));
2526 report("Search failed: %s", buf);
2530 string_copy(view->grep, opt_search);
2532 find_next(view, request);
2536 * Incremental updating
2540 reset_view(struct view *view)
2544 for (i = 0; i < view->lines; i++)
2545 free(view->line[i].data);
2548 view->p_offset = view->offset;
2549 view->p_lineno = view->lineno;
2555 view->line_alloc = 0;
2557 view->update_secs = 0;
2561 free_argv(const char *argv[])
2565 for (argc = 0; argv[argc]; argc++)
2566 free((void *) argv[argc]);
2570 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2572 char buf[SIZEOF_STR];
2574 bool noreplace = flags == FORMAT_NONE;
2576 free_argv(dst_argv);
2578 for (argc = 0; src_argv[argc]; argc++) {
2579 const char *arg = src_argv[argc];
2583 char *next = strstr(arg, "%(");
2584 int len = next - arg;
2587 if (!next || noreplace) {
2588 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2593 } else if (!prefixcmp(next, "%(directory)")) {
2596 } else if (!prefixcmp(next, "%(file)")) {
2599 } else if (!prefixcmp(next, "%(ref)")) {
2600 value = *opt_ref ? opt_ref : "HEAD";
2602 } else if (!prefixcmp(next, "%(head)")) {
2605 } else if (!prefixcmp(next, "%(commit)")) {
2608 } else if (!prefixcmp(next, "%(blob)")) {
2612 report("Unknown replacement: `%s`", next);
2616 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2619 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2622 dst_argv[argc] = strdup(buf);
2623 if (!dst_argv[argc])
2627 dst_argv[argc] = NULL;
2629 return src_argv[argc] == NULL;
2633 restore_view_position(struct view *view)
2635 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2638 /* Changing the view position cancels the restoring. */
2639 /* FIXME: Changing back to the first line is not detected. */
2640 if (view->offset != 0 || view->lineno != 0) {
2641 view->p_restore = FALSE;
2645 if (view->p_lineno >= view->lines) {
2646 view->p_lineno = view->lines > 0 ? view->lines - 1 : 0;
2647 if (view->p_offset >= view->p_lineno) {
2648 unsigned long half = view->height / 2;
2650 if (view->p_lineno > half)
2651 view->p_offset = view->p_lineno - half;
2657 if (view_is_displayed(view) &&
2658 view->offset != view->p_offset &&
2659 view->lineno != view->p_lineno)
2662 view->offset = view->p_offset;
2663 view->lineno = view->p_lineno;
2664 view->p_restore = FALSE;
2670 end_update(struct view *view, bool force)
2674 while (!view->ops->read(view, NULL))
2677 set_nonblocking_input(FALSE);
2679 kill_io(view->pipe);
2680 done_io(view->pipe);
2685 setup_update(struct view *view, const char *vid)
2687 set_nonblocking_input(TRUE);
2689 string_copy_rev(view->vid, vid);
2690 view->pipe = &view->io;
2691 view->start_time = time(NULL);
2695 prepare_update(struct view *view, const char *argv[], const char *dir,
2696 enum format_flags flags)
2699 end_update(view, TRUE);
2700 return init_io_rd(&view->io, argv, dir, flags);
2704 prepare_update_file(struct view *view, const char *name)
2707 end_update(view, TRUE);
2708 return io_open(&view->io, name);
2712 begin_update(struct view *view, bool refresh)
2715 end_update(view, TRUE);
2718 if (!start_io(&view->io))
2722 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2725 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2728 /* Put the current ref_* value to the view title ref
2729 * member. This is needed by the blob view. Most other
2730 * views sets it automatically after loading because the
2731 * first line is a commit line. */
2732 string_copy_rev(view->ref, view->id);
2735 setup_update(view, view->id);
2740 #define ITEM_CHUNK_SIZE 256
2742 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2744 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2745 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2747 if (mem == NULL || num_chunks != num_chunks_new) {
2748 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2749 mem = realloc(mem, *size * item_size);
2755 static struct line *
2756 realloc_lines(struct view *view, size_t line_size)
2758 size_t alloc = view->line_alloc;
2759 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2760 sizeof(*view->line));
2766 view->line_alloc = alloc;
2771 update_view(struct view *view)
2773 char out_buffer[BUFSIZ * 2];
2775 /* Clear the view and redraw everything since the tree sorting
2776 * might have rearranged things. */
2777 bool redraw = view->lines == 0;
2778 bool can_read = TRUE;
2783 if (!io_can_read(view->pipe)) {
2784 if (view->lines == 0) {
2785 time_t secs = time(NULL) - view->start_time;
2787 if (secs > view->update_secs) {
2788 if (view->update_secs == 0)
2790 update_view_title(view);
2791 view->update_secs = secs;
2797 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2798 if (opt_iconv != ICONV_NONE) {
2799 ICONV_CONST char *inbuf = line;
2800 size_t inlen = strlen(line) + 1;
2802 char *outbuf = out_buffer;
2803 size_t outlen = sizeof(out_buffer);
2807 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2808 if (ret != (size_t) -1)
2812 if (!view->ops->read(view, line)) {
2813 report("Allocation failure");
2814 end_update(view, TRUE);
2820 unsigned long lines = view->lines;
2823 for (digits = 0; lines; digits++)
2826 /* Keep the displayed view in sync with line number scaling. */
2827 if (digits != view->digits) {
2828 view->digits = digits;
2829 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2834 if (io_error(view->pipe)) {
2835 report("Failed to read: %s", io_strerror(view->pipe));
2836 end_update(view, TRUE);
2838 } else if (io_eof(view->pipe)) {
2840 end_update(view, FALSE);
2843 if (restore_view_position(view))
2846 if (!view_is_displayed(view))
2850 redraw_view_from(view, 0);
2852 redraw_view_dirty(view);
2854 /* Update the title _after_ the redraw so that if the redraw picks up a
2855 * commit reference in view->ref it'll be available here. */
2856 update_view_title(view);
2857 update_display_cursor(view);
2861 static struct line *
2862 add_line_data(struct view *view, void *data, enum line_type type)
2866 if (!realloc_lines(view, view->lines + 1))
2869 line = &view->line[view->lines++];
2870 memset(line, 0, sizeof(*line));
2878 static struct line *
2879 add_line_text(struct view *view, const char *text, enum line_type type)
2881 char *data = text ? strdup(text) : NULL;
2883 return data ? add_line_data(view, data, type) : NULL;
2886 static struct line *
2887 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2889 char buf[SIZEOF_STR];
2892 va_start(args, fmt);
2893 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2897 return buf[0] ? add_line_text(view, buf, type) : NULL;
2905 OPEN_DEFAULT = 0, /* Use default view switching. */
2906 OPEN_SPLIT = 1, /* Split current view. */
2907 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2908 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2909 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2910 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2911 OPEN_PREPARED = 32, /* Open already prepared command. */
2915 open_view(struct view *prev, enum request request, enum open_flags flags)
2917 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2918 bool split = !!(flags & OPEN_SPLIT);
2919 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2920 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2921 struct view *view = VIEW(request);
2922 int nviews = displayed_views();
2923 struct view *base_view = display[0];
2925 if (view == prev && nviews == 1 && !reload) {
2926 report("Already in %s view", view->name);
2930 if (view->git_dir && !opt_git_dir[0]) {
2931 report("The %s view is disabled in pager view", view->name);
2939 } else if (!nomaximize) {
2940 /* Maximize the current view. */
2941 memset(display, 0, sizeof(display));
2943 display[current_view] = view;
2946 /* Resize the view when switching between split- and full-screen,
2947 * or when switching between two different full-screen views. */
2948 if (nviews != displayed_views() ||
2949 (nviews == 1 && base_view != display[0]))
2952 if (view->ops->open) {
2954 end_update(view, TRUE);
2955 if (!view->ops->open(view)) {
2956 report("Failed to load %s view", view->name);
2959 restore_view_position(view);
2961 } else if ((reload || strcmp(view->vid, view->id)) &&
2962 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2963 report("Failed to load %s view", view->name);
2967 if (split && prev->lineno - prev->offset >= prev->height) {
2968 /* Take the title line into account. */
2969 int lines = prev->lineno - prev->offset - prev->height + 1;
2971 /* Scroll the view that was split if the current line is
2972 * outside the new limited view. */
2973 do_scroll_view(prev, lines);
2976 if (prev && view != prev) {
2977 if (split && !backgrounded) {
2978 /* "Blur" the previous view. */
2979 update_view_title(prev);
2982 view->parent = prev;
2985 if (view->pipe && view->lines == 0) {
2986 /* Clear the old view and let the incremental updating refill
2989 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
2991 } else if (view_is_displayed(view)) {
2996 /* If the view is backgrounded the above calls to report()
2997 * won't redraw the view title. */
2999 update_view_title(view);
3003 open_external_viewer(const char *argv[], const char *dir)
3005 def_prog_mode(); /* save current tty modes */
3006 endwin(); /* restore original tty modes */
3007 run_io_fg(argv, dir);
3008 fprintf(stderr, "Press Enter to continue");
3011 redraw_display(TRUE);
3015 open_mergetool(const char *file)
3017 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
3019 open_external_viewer(mergetool_argv, opt_cdup);
3023 open_editor(bool from_root, const char *file)
3025 const char *editor_argv[] = { "vi", file, NULL };
3028 editor = getenv("GIT_EDITOR");
3029 if (!editor && *opt_editor)
3030 editor = opt_editor;
3032 editor = getenv("VISUAL");
3034 editor = getenv("EDITOR");
3038 editor_argv[0] = editor;
3039 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3043 open_run_request(enum request request)
3045 struct run_request *req = get_run_request(request);
3046 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3049 report("Unknown run request");
3053 if (format_argv(argv, req->argv, FORMAT_ALL))
3054 open_external_viewer(argv, NULL);
3059 * User request switch noodle
3063 view_driver(struct view *view, enum request request)
3067 if (request == REQ_NONE) {
3072 if (request > REQ_NONE) {
3073 open_run_request(request);
3074 /* FIXME: When all views can refresh always do this. */
3075 if (view == VIEW(REQ_VIEW_STATUS) ||
3076 view == VIEW(REQ_VIEW_MAIN) ||
3077 view == VIEW(REQ_VIEW_LOG) ||
3078 view == VIEW(REQ_VIEW_STAGE))
3079 request = REQ_REFRESH;
3084 if (view && view->lines) {
3085 request = view->ops->request(view, request, &view->line[view->lineno]);
3086 if (request == REQ_NONE)
3093 case REQ_MOVE_PAGE_UP:
3094 case REQ_MOVE_PAGE_DOWN:
3095 case REQ_MOVE_FIRST_LINE:
3096 case REQ_MOVE_LAST_LINE:
3097 move_view(view, request);
3100 case REQ_SCROLL_LINE_DOWN:
3101 case REQ_SCROLL_LINE_UP:
3102 case REQ_SCROLL_PAGE_DOWN:
3103 case REQ_SCROLL_PAGE_UP:
3104 scroll_view(view, request);
3107 case REQ_VIEW_BLAME:
3109 report("No file chosen, press %s to open tree view",
3110 get_key(REQ_VIEW_TREE));
3113 open_view(view, request, OPEN_DEFAULT);
3118 report("No file chosen, press %s to open tree view",
3119 get_key(REQ_VIEW_TREE));
3122 open_view(view, request, OPEN_DEFAULT);
3125 case REQ_VIEW_PAGER:
3126 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3127 report("No pager content, press %s to run command from prompt",
3128 get_key(REQ_PROMPT));
3131 open_view(view, request, OPEN_DEFAULT);
3134 case REQ_VIEW_STAGE:
3135 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3136 report("No stage content, press %s to open the status view and choose file",
3137 get_key(REQ_VIEW_STATUS));
3140 open_view(view, request, OPEN_DEFAULT);
3143 case REQ_VIEW_STATUS:
3144 if (opt_is_inside_work_tree == FALSE) {
3145 report("The status view requires a working tree");
3148 open_view(view, request, OPEN_DEFAULT);
3156 open_view(view, request, OPEN_DEFAULT);
3161 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3163 if ((view == VIEW(REQ_VIEW_DIFF) &&
3164 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3165 (view == VIEW(REQ_VIEW_DIFF) &&
3166 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3167 (view == VIEW(REQ_VIEW_STAGE) &&
3168 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3169 (view == VIEW(REQ_VIEW_BLOB) &&
3170 view->parent == VIEW(REQ_VIEW_TREE))) {
3173 view = view->parent;
3174 line = view->lineno;
3175 move_view(view, request);
3176 if (view_is_displayed(view))
3177 update_view_title(view);
3178 if (line != view->lineno)
3179 view->ops->request(view, REQ_ENTER,
3180 &view->line[view->lineno]);
3183 move_view(view, request);
3189 int nviews = displayed_views();
3190 int next_view = (current_view + 1) % nviews;
3192 if (next_view == current_view) {
3193 report("Only one view is displayed");
3197 current_view = next_view;
3198 /* Blur out the title of the previous view. */
3199 update_view_title(view);
3204 report("Refreshing is not yet supported for the %s view", view->name);
3208 if (displayed_views() == 2)
3209 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3212 case REQ_TOGGLE_LINENO:
3213 toggle_view_option(&opt_line_number, "line numbers");
3216 case REQ_TOGGLE_DATE:
3217 toggle_view_option(&opt_date, "date display");
3220 case REQ_TOGGLE_AUTHOR:
3221 toggle_view_option(&opt_author, "author display");
3224 case REQ_TOGGLE_REV_GRAPH:
3225 toggle_view_option(&opt_rev_graph, "revision graph display");
3228 case REQ_TOGGLE_REFS:
3229 toggle_view_option(&opt_show_refs, "reference display");
3233 case REQ_SEARCH_BACK:
3234 search_view(view, request);
3239 find_next(view, request);
3242 case REQ_STOP_LOADING:
3243 for (i = 0; i < ARRAY_SIZE(views); i++) {
3246 report("Stopped loading the %s view", view->name),
3247 end_update(view, TRUE);
3251 case REQ_SHOW_VERSION:
3252 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3255 case REQ_SCREEN_REDRAW:
3256 redraw_display(TRUE);
3260 report("Nothing to edit");
3264 report("Nothing to enter");
3267 case REQ_VIEW_CLOSE:
3268 /* XXX: Mark closed views by letting view->parent point to the
3269 * view itself. Parents to closed view should never be
3272 view->parent->parent != view->parent) {
3273 memset(display, 0, sizeof(display));
3275 display[current_view] = view->parent;
3276 view->parent = view;
3278 redraw_display(FALSE);
3287 report("Unknown key, press 'h' for help");
3296 * View backend utilities
3299 /* Parse author lines where the name may be empty:
3300 * author <email@address.tld> 1138474660 +0100
3303 parse_author_line(char *ident, char *author, size_t authorsize, struct tm *tm)
3305 char *nameend = strchr(ident, '<');
3306 char *emailend = strchr(ident, '>');
3308 if (nameend && emailend)
3309 *nameend = *emailend = 0;
3310 ident = chomp_string(ident);
3313 ident = chomp_string(nameend + 1);
3318 string_ncopy_do(author, authorsize, ident, strlen(ident));
3320 /* Parse epoch and timezone */
3321 if (emailend && emailend[1] == ' ') {
3322 char *secs = emailend + 2;
3323 char *zone = strchr(secs, ' ');
3324 time_t time = (time_t) atol(secs);
3326 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
3330 tz = ('0' - zone[1]) * 60 * 60 * 10;
3331 tz += ('0' - zone[2]) * 60 * 60;
3332 tz += ('0' - zone[3]) * 60;
3333 tz += ('0' - zone[4]) * 60;
3341 gmtime_r(&time, tm);
3345 static enum input_status
3346 select_commit_parent_handler(void *data, char *buf, int c)
3348 size_t parents = *(size_t *) data;
3355 parent = atoi(buf) * 10;
3358 if (parent > parents)
3364 select_commit_parent(const char *id, char rev[SIZEOF_REV])
3366 char buf[SIZEOF_STR * 4];
3367 const char *revlist_argv[] = {
3368 "git", "rev-list", "-1", "--parents", id, NULL
3372 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3373 !*chomp_string(buf) ||
3374 (parents = (strlen(buf) / 40) - 1) < 0) {
3375 report("Failed to get parent information");
3378 } else if (parents == 0) {
3379 report("The selected commit has no parents");
3384 char prompt[SIZEOF_STR];
3387 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3389 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3392 parents = atoi(result);
3395 string_copy_rev(rev, &buf[41 * parents]);
3404 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3406 char *text = line->data;
3408 if (opt_line_number && draw_lineno(view, lineno))
3411 draw_text(view, line->type, text, TRUE);
3416 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3418 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3419 char refbuf[SIZEOF_STR];
3422 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3423 ref = chomp_string(refbuf);
3428 /* This is the only fatal call, since it can "corrupt" the buffer. */
3429 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3436 add_pager_refs(struct view *view, struct line *line)
3438 char buf[SIZEOF_STR];
3439 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3441 size_t bufpos = 0, refpos = 0;
3442 const char *sep = "Refs: ";
3443 bool is_tag = FALSE;
3445 assert(line->type == LINE_COMMIT);
3447 refs = get_refs(commit_id);
3449 if (view == VIEW(REQ_VIEW_DIFF))
3450 goto try_add_describe_ref;
3455 struct ref *ref = refs[refpos];
3456 const char *fmt = ref->tag ? "%s[%s]" :
3457 ref->remote ? "%s<%s>" : "%s%s";
3459 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3464 } while (refs[refpos++]->next);
3466 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3467 try_add_describe_ref:
3468 /* Add <tag>-g<commit_id> "fake" reference. */
3469 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3476 add_line_text(view, buf, LINE_PP_REFS);
3480 pager_read(struct view *view, char *data)
3487 line = add_line_text(view, data, get_line_type(data));
3491 if (line->type == LINE_COMMIT &&
3492 (view == VIEW(REQ_VIEW_DIFF) ||
3493 view == VIEW(REQ_VIEW_LOG)))
3494 add_pager_refs(view, line);
3500 pager_request(struct view *view, enum request request, struct line *line)
3504 if (request != REQ_ENTER)
3507 if (line->type == LINE_COMMIT &&
3508 (view == VIEW(REQ_VIEW_LOG) ||
3509 view == VIEW(REQ_VIEW_PAGER))) {
3510 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3514 /* Always scroll the view even if it was split. That way
3515 * you can use Enter to scroll through the log view and
3516 * split open each commit diff. */
3517 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3519 /* FIXME: A minor workaround. Scrolling the view will call report("")
3520 * but if we are scrolling a non-current view this won't properly
3521 * update the view title. */
3523 update_view_title(view);
3529 pager_grep(struct view *view, struct line *line)
3532 char *text = line->data;
3537 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3544 pager_select(struct view *view, struct line *line)
3546 if (line->type == LINE_COMMIT) {
3547 char *text = (char *)line->data + STRING_SIZE("commit ");
3549 if (view != VIEW(REQ_VIEW_PAGER))
3550 string_copy_rev(view->ref, text);
3551 string_copy_rev(ref_commit, text);
3555 static struct view_ops pager_ops = {
3566 static const char *log_argv[SIZEOF_ARG] = {
3567 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3571 log_request(struct view *view, enum request request, struct line *line)
3576 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3579 return pager_request(view, request, line);
3583 static struct view_ops log_ops = {
3594 static const char *diff_argv[SIZEOF_ARG] = {
3595 "git", "show", "--pretty=fuller", "--no-color", "--root",
3596 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3599 static struct view_ops diff_ops = {
3615 help_open(struct view *view)
3617 char buf[SIZEOF_STR];
3621 if (view->lines > 0)
3624 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3626 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3629 if (req_info[i].request == REQ_NONE)
3632 if (!req_info[i].request) {
3633 add_line_text(view, "", LINE_DEFAULT);
3634 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3638 key = get_key(req_info[i].request);
3640 key = "(no key defined)";
3642 for (bufpos = 0; bufpos <= req_info[i].namelen; bufpos++) {
3643 buf[bufpos] = tolower(req_info[i].name[bufpos]);
3644 if (buf[bufpos] == '_')
3648 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s",
3649 key, buf, req_info[i].help);
3653 add_line_text(view, "", LINE_DEFAULT);
3654 add_line_text(view, "External commands:", LINE_DEFAULT);
3657 for (i = 0; i < run_requests; i++) {
3658 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3665 key = get_key_name(req->key);
3667 key = "(no key defined)";
3669 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3670 if (!string_format_from(buf, &bufpos, "%s%s",
3671 argc ? " " : "", req->argv[argc]))
3674 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3675 keymap_table[req->keymap].name, key, buf);
3681 static struct view_ops help_ops = {
3697 struct tree_stack_entry {
3698 struct tree_stack_entry *prev; /* Entry below this in the stack */
3699 unsigned long lineno; /* Line number to restore */
3700 char *name; /* Position of name in opt_path */
3703 /* The top of the path stack. */
3704 static struct tree_stack_entry *tree_stack = NULL;
3705 unsigned long tree_lineno = 0;
3708 pop_tree_stack_entry(void)
3710 struct tree_stack_entry *entry = tree_stack;
3712 tree_lineno = entry->lineno;
3714 tree_stack = entry->prev;
3719 push_tree_stack_entry(const char *name, unsigned long lineno)
3721 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3722 size_t pathlen = strlen(opt_path);
3727 entry->prev = tree_stack;
3728 entry->name = opt_path + pathlen;
3731 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3732 pop_tree_stack_entry();
3736 /* Move the current line to the first tree entry. */
3738 entry->lineno = lineno;
3741 /* Parse output from git-ls-tree(1):
3743 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3744 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3745 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3746 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3749 #define SIZEOF_TREE_ATTR \
3750 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3752 #define SIZEOF_TREE_MODE \
3753 STRING_SIZE("100644 ")
3755 #define TREE_ID_OFFSET \
3756 STRING_SIZE("100644 blob ")
3759 char id[SIZEOF_REV];
3761 struct tm time; /* Date from the author ident. */
3762 char author[75]; /* Author of the commit. */
3767 tree_path(struct line *line)
3769 return ((struct tree_entry *) line->data)->name;
3774 tree_compare_entry(struct line *line1, struct line *line2)
3776 if (line1->type != line2->type)
3777 return line1->type == LINE_TREE_DIR ? -1 : 1;
3778 return strcmp(tree_path(line1), tree_path(line2));
3781 static struct line *
3782 tree_entry(struct view *view, enum line_type type, const char *path,
3783 const char *mode, const char *id)
3785 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3786 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3788 if (!entry || !line) {
3793 strncpy(entry->name, path, strlen(path));
3795 entry->mode = strtoul(mode, NULL, 8);
3797 string_copy_rev(entry->id, id);
3803 tree_read_date(struct view *view, char *text, bool *read_date)
3805 static char author_name[SIZEOF_STR];
3806 static struct tm author_time;
3808 if (!text && *read_date) {
3813 char *path = *opt_path ? opt_path : ".";
3814 /* Find next entry to process */
3815 const char *log_file[] = {
3816 "git", "log", "--no-color", "--pretty=raw",
3817 "--cc", "--raw", view->id, "--", path, NULL
3821 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3822 report("Failed to load tree data");
3826 done_io(view->pipe);
3831 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3832 parse_author_line(text + STRING_SIZE("author "),
3833 author_name, sizeof(author_name), &author_time);
3835 } else if (*text == ':') {
3837 size_t annotated = 1;
3840 pos = strchr(text, '\t');
3844 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3845 text += strlen(opt_prefix);
3846 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3847 text += strlen(opt_path);
3848 pos = strchr(text, '/');
3852 for (i = 1; i < view->lines; i++) {
3853 struct line *line = &view->line[i];
3854 struct tree_entry *entry = line->data;
3856 annotated += !!*entry->author;
3857 if (*entry->author || strcmp(entry->name, text))
3860 string_copy(entry->author, author_name);
3861 memcpy(&entry->time, &author_time, sizeof(entry->time));
3866 if (annotated == view->lines)
3867 kill_io(view->pipe);
3873 tree_read(struct view *view, char *text)
3875 static bool read_date = FALSE;
3876 struct tree_entry *data;
3877 struct line *entry, *line;
3878 enum line_type type;
3879 size_t textlen = text ? strlen(text) : 0;
3880 char *path = text + SIZEOF_TREE_ATTR;
3882 if (read_date || !text)
3883 return tree_read_date(view, text, &read_date);
3885 if (textlen <= SIZEOF_TREE_ATTR)
3887 if (view->lines == 0 &&
3888 !tree_entry(view, LINE_TREE_PARENT, opt_path, NULL, NULL))
3891 /* Strip the path part ... */
3893 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3894 size_t striplen = strlen(opt_path);
3896 if (pathlen > striplen)
3897 memmove(path, path + striplen,
3898 pathlen - striplen + 1);
3900 /* Insert "link" to parent directory. */
3901 if (view->lines == 1 &&
3902 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3906 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3907 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3912 /* Skip "Directory ..." and ".." line. */
3913 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3914 if (tree_compare_entry(line, entry) <= 0)
3917 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3921 for (; line <= entry; line++)
3922 line->dirty = line->cleareol = 1;
3926 if (tree_lineno > view->lineno) {
3927 view->lineno = tree_lineno;
3935 tree_draw(struct view *view, struct line *line, unsigned int lineno)
3937 struct tree_entry *entry = line->data;
3939 if (line->type == LINE_TREE_PARENT) {
3940 if (draw_text(view, line->type, "Directory path /", TRUE))
3943 char mode[11] = "-r--r--r--";
3945 if (S_ISDIR(entry->mode)) {
3946 mode[3] = mode[6] = mode[9] = 'x';
3949 if (S_ISLNK(entry->mode))
3951 if (entry->mode & S_IWUSR)
3953 if (entry->mode & S_IXUSR)
3955 if (entry->mode & S_IXGRP)
3957 if (entry->mode & S_IXOTH)
3959 if (draw_field(view, LINE_TREE_MODE, mode, 11, TRUE))
3962 if (opt_author && draw_author(view, entry->author))
3965 if (opt_date && draw_date(view, *entry->author ? &entry->time : NULL))
3968 if (draw_text(view, line->type, entry->name, TRUE))
3976 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
3977 int fd = mkstemp(file);
3980 report("Failed to create temporary file");
3981 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
3982 report("Failed to save blob data to file");
3984 open_editor(FALSE, file);
3990 tree_request(struct view *view, enum request request, struct line *line)
3992 enum open_flags flags;
3995 case REQ_VIEW_BLAME:
3996 if (line->type != LINE_TREE_FILE) {
3997 report("Blame only supported for files");
4001 string_copy(opt_ref, view->vid);
4005 if (line->type != LINE_TREE_FILE) {
4006 report("Edit only supported for files");
4007 } else if (!is_head_commit(view->vid)) {
4010 open_editor(TRUE, opt_file);
4016 /* quit view if at top of tree */
4017 return REQ_VIEW_CLOSE;
4020 line = &view->line[1];
4030 /* Cleanup the stack if the tree view is at a different tree. */
4031 while (!*opt_path && tree_stack)
4032 pop_tree_stack_entry();
4034 switch (line->type) {
4036 /* Depending on whether it is a subdir or parent (updir?) link
4037 * mangle the path buffer. */
4038 if (line == &view->line[1] && *opt_path) {
4039 pop_tree_stack_entry();
4042 const char *basename = tree_path(line);
4044 push_tree_stack_entry(basename, view->lineno);
4047 /* Trees and subtrees share the same ID, so they are not not
4048 * unique like blobs. */
4049 flags = OPEN_RELOAD;
4050 request = REQ_VIEW_TREE;
4053 case LINE_TREE_FILE:
4054 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4055 request = REQ_VIEW_BLOB;
4062 open_view(view, request, flags);
4063 if (request == REQ_VIEW_TREE)
4064 view->lineno = tree_lineno;
4070 tree_select(struct view *view, struct line *line)
4072 struct tree_entry *entry = line->data;
4074 if (line->type == LINE_TREE_FILE) {
4075 string_copy_rev(ref_blob, entry->id);
4076 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4078 } else if (line->type != LINE_TREE_DIR) {
4082 string_copy_rev(view->ref, entry->id);
4085 static const char *tree_argv[SIZEOF_ARG] = {
4086 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4089 static struct view_ops tree_ops = {
4101 blob_read(struct view *view, char *line)
4105 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4109 blob_request(struct view *view, enum request request, struct line *line)
4116 return pager_request(view, request, line);
4120 static const char *blob_argv[SIZEOF_ARG] = {
4121 "git", "cat-file", "blob", "%(blob)", NULL
4124 static struct view_ops blob_ops = {
4138 * Loading the blame view is a two phase job:
4140 * 1. File content is read either using opt_file from the
4141 * filesystem or using git-cat-file.
4142 * 2. Then blame information is incrementally added by
4143 * reading output from git-blame.
4146 static const char *blame_head_argv[] = {
4147 "git", "blame", "--incremental", "--", "%(file)", NULL
4150 static const char *blame_ref_argv[] = {
4151 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4154 static const char *blame_cat_file_argv[] = {
4155 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4158 struct blame_commit {
4159 char id[SIZEOF_REV]; /* SHA1 ID. */
4160 char title[128]; /* First line of the commit message. */
4161 char author[75]; /* Author of the commit. */
4162 struct tm time; /* Date from the author ident. */
4163 char filename[128]; /* Name of file. */
4164 bool has_previous; /* Was a "previous" line detected. */
4168 struct blame_commit *commit;
4173 blame_open(struct view *view)
4175 if (*opt_ref || !io_open(&view->io, opt_file)) {
4176 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4180 setup_update(view, opt_file);
4181 string_format(view->ref, "%s ...", opt_file);
4186 static struct blame_commit *
4187 get_blame_commit(struct view *view, const char *id)
4191 for (i = 0; i < view->lines; i++) {
4192 struct blame *blame = view->line[i].data;
4197 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4198 return blame->commit;
4202 struct blame_commit *commit = calloc(1, sizeof(*commit));
4205 string_ncopy(commit->id, id, SIZEOF_REV);
4211 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4213 const char *pos = *posref;
4216 pos = strchr(pos + 1, ' ');
4217 if (!pos || !isdigit(pos[1]))
4219 *number = atoi(pos + 1);
4220 if (*number < min || *number > max)
4227 static struct blame_commit *
4228 parse_blame_commit(struct view *view, const char *text, int *blamed)
4230 struct blame_commit *commit;
4231 struct blame *blame;
4232 const char *pos = text + SIZEOF_REV - 1;
4236 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
4239 if (!parse_number(&pos, &lineno, 1, view->lines) ||
4240 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4243 commit = get_blame_commit(view, text);
4249 struct line *line = &view->line[lineno + group - 1];
4252 blame->commit = commit;
4260 blame_read_file(struct view *view, const char *line, bool *read_file)
4263 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4266 if (view->lines == 0 && !view->parent)
4267 die("No blame exist for %s", view->vid);
4269 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4270 report("Failed to load blame data");
4274 done_io(view->pipe);
4280 size_t linelen = strlen(line);
4281 struct blame *blame = malloc(sizeof(*blame) + linelen);
4283 blame->commit = NULL;
4284 strncpy(blame->text, line, linelen);
4285 blame->text[linelen] = 0;
4286 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4291 match_blame_header(const char *name, char **line)
4293 size_t namelen = strlen(name);
4294 bool matched = !strncmp(name, *line, namelen);
4303 blame_read(struct view *view, char *line)
4305 static struct blame_commit *commit = NULL;
4306 static int blamed = 0;
4307 static time_t author_time;
4308 static bool read_file = TRUE;
4311 return blame_read_file(view, line, &read_file);
4318 string_format(view->ref, "%s", view->vid);
4319 if (view_is_displayed(view)) {
4320 update_view_title(view);
4321 redraw_view_from(view, 0);
4327 commit = parse_blame_commit(view, line, &blamed);
4328 string_format(view->ref, "%s %2d%%", view->vid,
4329 view->lines ? blamed * 100 / view->lines : 0);
4331 } else if (match_blame_header("author ", &line)) {
4332 string_ncopy(commit->author, line, strlen(line));
4334 } else if (match_blame_header("author-time ", &line)) {
4335 author_time = (time_t) atol(line);
4337 } else if (match_blame_header("author-tz ", &line)) {
4340 tz = ('0' - line[1]) * 60 * 60 * 10;
4341 tz += ('0' - line[2]) * 60 * 60;
4342 tz += ('0' - line[3]) * 60;
4343 tz += ('0' - line[4]) * 60;
4349 gmtime_r(&author_time, &commit->time);
4351 } else if (match_blame_header("summary ", &line)) {
4352 string_ncopy(commit->title, line, strlen(line));
4354 } else if (match_blame_header("previous ", &line)) {
4355 commit->has_previous = TRUE;
4357 } else if (match_blame_header("filename ", &line)) {
4358 string_ncopy(commit->filename, line, strlen(line));
4366 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4368 struct blame *blame = line->data;
4369 struct tm *time = NULL;
4370 const char *id = NULL, *author = NULL;
4372 if (blame->commit && *blame->commit->filename) {
4373 id = blame->commit->id;
4374 author = blame->commit->author;
4375 time = &blame->commit->time;
4378 if (opt_date && draw_date(view, time))
4381 if (opt_author && draw_author(view, author))
4384 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4387 if (draw_lineno(view, lineno))
4390 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4395 check_blame_commit(struct blame *blame)
4398 report("Commit data not loaded yet");
4399 else if (!strcmp(blame->commit->id, NULL_ID))
4400 report("No commit exist for the selected line");
4407 blame_request(struct view *view, enum request request, struct line *line)
4409 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4410 struct blame *blame = line->data;
4413 case REQ_VIEW_BLAME:
4414 if (check_blame_commit(blame)) {
4415 string_copy(opt_ref, blame->commit->id);
4416 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4421 if (check_blame_commit(blame) &&
4422 select_commit_parent(blame->commit->id, opt_ref))
4423 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4427 if (!blame->commit) {
4428 report("No commit loaded yet");
4432 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4433 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4436 if (!strcmp(blame->commit->id, NULL_ID)) {
4437 struct view *diff = VIEW(REQ_VIEW_DIFF);
4438 const char *diff_index_argv[] = {
4439 "git", "diff-index", "--root", "--patch-with-stat",
4440 "-C", "-M", "HEAD", "--", view->vid, NULL
4443 if (!blame->commit->has_previous) {
4444 diff_index_argv[1] = "diff";
4445 diff_index_argv[2] = "--no-color";
4446 diff_index_argv[6] = "--";
4447 diff_index_argv[7] = "/dev/null";
4450 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4451 report("Failed to allocate diff command");
4454 flags |= OPEN_PREPARED;
4457 open_view(view, REQ_VIEW_DIFF, flags);
4458 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4459 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4470 blame_grep(struct view *view, struct line *line)
4472 struct blame *blame = line->data;
4473 struct blame_commit *commit = blame->commit;
4476 #define MATCH(text, on) \
4477 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4480 char buf[DATE_COLS + 1];
4482 if (MATCH(commit->title, 1) ||
4483 MATCH(commit->author, opt_author) ||
4484 MATCH(commit->id, opt_date))
4487 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4492 return MATCH(blame->text, 1);
4498 blame_select(struct view *view, struct line *line)
4500 struct blame *blame = line->data;
4501 struct blame_commit *commit = blame->commit;
4506 if (!strcmp(commit->id, NULL_ID))
4507 string_ncopy(ref_commit, "HEAD", 4);
4509 string_copy_rev(ref_commit, commit->id);
4512 static struct view_ops blame_ops = {
4531 char rev[SIZEOF_REV];
4532 char name[SIZEOF_STR];
4536 char rev[SIZEOF_REV];
4537 char name[SIZEOF_STR];
4541 static char status_onbranch[SIZEOF_STR];
4542 static struct status stage_status;
4543 static enum line_type stage_line_type;
4544 static size_t stage_chunks;
4545 static int *stage_chunk;
4547 /* This should work even for the "On branch" line. */
4549 status_has_none(struct view *view, struct line *line)
4551 return line < view->line + view->lines && !line[1].data;
4554 /* Get fields from the diff line:
4555 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4558 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4560 const char *old_mode = buf + 1;
4561 const char *new_mode = buf + 8;
4562 const char *old_rev = buf + 15;
4563 const char *new_rev = buf + 56;
4564 const char *status = buf + 97;
4567 old_mode[-1] != ':' ||
4568 new_mode[-1] != ' ' ||
4569 old_rev[-1] != ' ' ||
4570 new_rev[-1] != ' ' ||
4574 file->status = *status;
4576 string_copy_rev(file->old.rev, old_rev);
4577 string_copy_rev(file->new.rev, new_rev);
4579 file->old.mode = strtoul(old_mode, NULL, 8);
4580 file->new.mode = strtoul(new_mode, NULL, 8);
4582 file->old.name[0] = file->new.name[0] = 0;
4588 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4590 struct status *file = NULL;
4591 struct status *unmerged = NULL;
4595 if (!run_io(&io, argv, NULL, IO_RD))
4598 add_line_data(view, NULL, type);
4600 while ((buf = io_get(&io, 0, TRUE))) {
4602 file = calloc(1, sizeof(*file));
4603 if (!file || !add_line_data(view, file, type))
4607 /* Parse diff info part. */
4609 file->status = status;
4611 string_copy(file->old.rev, NULL_ID);
4613 } else if (!file->status) {
4614 if (!status_get_diff(file, buf, strlen(buf)))
4617 buf = io_get(&io, 0, TRUE);
4621 /* Collapse all 'M'odified entries that follow a
4622 * associated 'U'nmerged entry. */
4623 if (file->status == 'U') {
4626 } else if (unmerged) {
4627 int collapse = !strcmp(buf, unmerged->new.name);
4639 /* Grab the old name for rename/copy. */
4640 if (!*file->old.name &&
4641 (file->status == 'R' || file->status == 'C')) {
4642 string_ncopy(file->old.name, buf, strlen(buf));
4644 buf = io_get(&io, 0, TRUE);
4649 /* git-ls-files just delivers a NUL separated list of
4650 * file names similar to the second half of the
4651 * git-diff-* output. */
4652 string_ncopy(file->new.name, buf, strlen(buf));
4653 if (!*file->old.name)
4654 string_copy(file->old.name, file->new.name);
4658 if (io_error(&io)) {
4664 if (!view->line[view->lines - 1].data)
4665 add_line_data(view, NULL, LINE_STAT_NONE);
4671 /* Don't show unmerged entries in the staged section. */
4672 static const char *status_diff_index_argv[] = {
4673 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4674 "--cached", "-M", "HEAD", NULL
4677 static const char *status_diff_files_argv[] = {
4678 "git", "diff-files", "-z", NULL
4681 static const char *status_list_other_argv[] = {
4682 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4685 static const char *status_list_no_head_argv[] = {
4686 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4689 static const char *update_index_argv[] = {
4690 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4693 /* Restore the previous line number to stay in the context or select a
4694 * line with something that can be updated. */
4696 status_restore(struct view *view)
4698 if (view->p_lineno >= view->lines)
4699 view->p_lineno = view->lines - 1;
4700 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4702 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4705 /* If the above fails, always skip the "On branch" line. */
4706 if (view->p_lineno < view->lines)
4707 view->lineno = view->p_lineno;
4711 if (view->lineno < view->offset)
4712 view->offset = view->lineno;
4713 else if (view->offset + view->height <= view->lineno)
4714 view->offset = view->lineno - view->height + 1;
4716 view->p_restore = FALSE;
4719 /* First parse staged info using git-diff-index(1), then parse unstaged
4720 * info using git-diff-files(1), and finally untracked files using
4721 * git-ls-files(1). */
4723 status_open(struct view *view)
4727 add_line_data(view, NULL, LINE_STAT_HEAD);
4728 if (is_initial_commit())
4729 string_copy(status_onbranch, "Initial commit");
4730 else if (!*opt_head)
4731 string_copy(status_onbranch, "Not currently on any branch");
4732 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4735 run_io_bg(update_index_argv);
4737 if (is_initial_commit()) {
4738 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4740 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4744 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4745 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4748 /* Restore the exact position or use the specialized restore
4750 if (!view->p_restore)
4751 status_restore(view);
4756 status_draw(struct view *view, struct line *line, unsigned int lineno)
4758 struct status *status = line->data;
4759 enum line_type type;
4763 switch (line->type) {
4764 case LINE_STAT_STAGED:
4765 type = LINE_STAT_SECTION;
4766 text = "Changes to be committed:";
4769 case LINE_STAT_UNSTAGED:
4770 type = LINE_STAT_SECTION;
4771 text = "Changed but not updated:";
4774 case LINE_STAT_UNTRACKED:
4775 type = LINE_STAT_SECTION;
4776 text = "Untracked files:";
4779 case LINE_STAT_NONE:
4780 type = LINE_DEFAULT;
4781 text = " (no files)";
4784 case LINE_STAT_HEAD:
4785 type = LINE_STAT_HEAD;
4786 text = status_onbranch;
4793 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4795 buf[0] = status->status;
4796 if (draw_text(view, line->type, buf, TRUE))
4798 type = LINE_DEFAULT;
4799 text = status->new.name;
4802 draw_text(view, type, text, TRUE);
4807 status_enter(struct view *view, struct line *line)
4809 struct status *status = line->data;
4810 const char *oldpath = status ? status->old.name : NULL;
4811 /* Diffs for unmerged entries are empty when passing the new
4812 * path, so leave it empty. */
4813 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4815 enum open_flags split;
4816 struct view *stage = VIEW(REQ_VIEW_STAGE);
4818 if (line->type == LINE_STAT_NONE ||
4819 (!status && line[1].type == LINE_STAT_NONE)) {
4820 report("No file to diff");
4824 switch (line->type) {
4825 case LINE_STAT_STAGED:
4826 if (is_initial_commit()) {
4827 const char *no_head_diff_argv[] = {
4828 "git", "diff", "--no-color", "--patch-with-stat",
4829 "--", "/dev/null", newpath, NULL
4832 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4835 const char *index_show_argv[] = {
4836 "git", "diff-index", "--root", "--patch-with-stat",
4837 "-C", "-M", "--cached", "HEAD", "--",
4838 oldpath, newpath, NULL
4841 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4846 info = "Staged changes to %s";
4848 info = "Staged changes";
4851 case LINE_STAT_UNSTAGED:
4853 const char *files_show_argv[] = {
4854 "git", "diff-files", "--root", "--patch-with-stat",
4855 "-C", "-M", "--", oldpath, newpath, NULL
4858 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4861 info = "Unstaged changes to %s";
4863 info = "Unstaged changes";
4866 case LINE_STAT_UNTRACKED:
4868 report("No file to show");
4872 if (!suffixcmp(status->new.name, -1, "/")) {
4873 report("Cannot display a directory");
4877 if (!prepare_update_file(stage, newpath))
4879 info = "Untracked file %s";
4882 case LINE_STAT_HEAD:
4886 die("line type %d not handled in switch", line->type);
4889 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4890 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
4891 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4893 stage_status = *status;
4895 memset(&stage_status, 0, sizeof(stage_status));
4898 stage_line_type = line->type;
4900 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4907 status_exists(struct status *status, enum line_type type)
4909 struct view *view = VIEW(REQ_VIEW_STATUS);
4910 unsigned long lineno;
4912 for (lineno = 0; lineno < view->lines; lineno++) {
4913 struct line *line = &view->line[lineno];
4914 struct status *pos = line->data;
4916 if (line->type != type)
4918 if (!pos && (!status || !status->status) && line[1].data) {
4919 select_view_line(view, lineno);
4922 if (pos && !strcmp(status->new.name, pos->new.name)) {
4923 select_view_line(view, lineno);
4933 status_update_prepare(struct io *io, enum line_type type)
4935 const char *staged_argv[] = {
4936 "git", "update-index", "-z", "--index-info", NULL
4938 const char *others_argv[] = {
4939 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4943 case LINE_STAT_STAGED:
4944 return run_io(io, staged_argv, opt_cdup, IO_WR);
4946 case LINE_STAT_UNSTAGED:
4947 return run_io(io, others_argv, opt_cdup, IO_WR);
4949 case LINE_STAT_UNTRACKED:
4950 return run_io(io, others_argv, NULL, IO_WR);
4953 die("line type %d not handled in switch", type);
4959 status_update_write(struct io *io, struct status *status, enum line_type type)
4961 char buf[SIZEOF_STR];
4965 case LINE_STAT_STAGED:
4966 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4969 status->old.name, 0))
4973 case LINE_STAT_UNSTAGED:
4974 case LINE_STAT_UNTRACKED:
4975 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4980 die("line type %d not handled in switch", type);
4983 return io_write(io, buf, bufsize);
4987 status_update_file(struct status *status, enum line_type type)
4992 if (!status_update_prepare(&io, type))
4995 result = status_update_write(&io, status, type);
5001 status_update_files(struct view *view, struct line *line)
5005 struct line *pos = view->line + view->lines;
5009 if (!status_update_prepare(&io, line->type))
5012 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5015 for (file = 0, done = 0; result && file < files; line++, file++) {
5016 int almost_done = file * 100 / files;
5018 if (almost_done > done) {
5020 string_format(view->ref, "updating file %u of %u (%d%% done)",
5022 update_view_title(view);
5024 result = status_update_write(&io, line->data, line->type);
5032 status_update(struct view *view)
5034 struct line *line = &view->line[view->lineno];
5036 assert(view->lines);
5039 /* This should work even for the "On branch" line. */
5040 if (line < view->line + view->lines && !line[1].data) {
5041 report("Nothing to update");
5045 if (!status_update_files(view, line + 1)) {
5046 report("Failed to update file status");
5050 } else if (!status_update_file(line->data, line->type)) {
5051 report("Failed to update file status");
5059 status_revert(struct status *status, enum line_type type, bool has_none)
5061 if (!status || type != LINE_STAT_UNSTAGED) {
5062 if (type == LINE_STAT_STAGED) {
5063 report("Cannot revert changes to staged files");
5064 } else if (type == LINE_STAT_UNTRACKED) {
5065 report("Cannot revert changes to untracked files");
5066 } else if (has_none) {
5067 report("Nothing to revert");
5069 report("Cannot revert changes to multiple files");
5074 const char *checkout_argv[] = {
5075 "git", "checkout", "--", status->old.name, NULL
5078 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5080 return run_io_fg(checkout_argv, opt_cdup);
5085 status_request(struct view *view, enum request request, struct line *line)
5087 struct status *status = line->data;
5090 case REQ_STATUS_UPDATE:
5091 if (!status_update(view))
5095 case REQ_STATUS_REVERT:
5096 if (!status_revert(status, line->type, status_has_none(view, line)))
5100 case REQ_STATUS_MERGE:
5101 if (!status || status->status != 'U') {
5102 report("Merging only possible for files with unmerged status ('U').");
5105 open_mergetool(status->new.name);
5111 if (status->status == 'D') {
5112 report("File has been deleted.");
5116 open_editor(status->status != '?', status->new.name);
5119 case REQ_VIEW_BLAME:
5121 string_copy(opt_file, status->new.name);
5127 /* After returning the status view has been split to
5128 * show the stage view. No further reloading is
5130 status_enter(view, line);
5134 /* Simply reload the view. */
5141 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5147 status_select(struct view *view, struct line *line)
5149 struct status *status = line->data;
5150 char file[SIZEOF_STR] = "all files";
5154 if (status && !string_format(file, "'%s'", status->new.name))
5157 if (!status && line[1].type == LINE_STAT_NONE)
5160 switch (line->type) {
5161 case LINE_STAT_STAGED:
5162 text = "Press %s to unstage %s for commit";
5165 case LINE_STAT_UNSTAGED:
5166 text = "Press %s to stage %s for commit";
5169 case LINE_STAT_UNTRACKED:
5170 text = "Press %s to stage %s for addition";
5173 case LINE_STAT_HEAD:
5174 case LINE_STAT_NONE:
5175 text = "Nothing to update";
5179 die("line type %d not handled in switch", line->type);
5182 if (status && status->status == 'U') {
5183 text = "Press %s to resolve conflict in %s";
5184 key = get_key(REQ_STATUS_MERGE);
5187 key = get_key(REQ_STATUS_UPDATE);
5190 string_format(view->ref, text, key, file);
5194 status_grep(struct view *view, struct line *line)
5196 struct status *status = line->data;
5197 enum { S_STATUS, S_NAME, S_END } state;
5204 for (state = S_STATUS; state < S_END; state++) {
5208 case S_NAME: text = status->new.name; break;
5210 buf[0] = status->status;
5218 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5225 static struct view_ops status_ops = {
5238 stage_diff_write(struct io *io, struct line *line, struct line *end)
5240 while (line < end) {
5241 if (!io_write(io, line->data, strlen(line->data)) ||
5242 !io_write(io, "\n", 1))
5245 if (line->type == LINE_DIFF_CHUNK ||
5246 line->type == LINE_DIFF_HEADER)
5253 static struct line *
5254 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5256 for (; view->line < line; line--)
5257 if (line->type == type)
5264 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5266 const char *apply_argv[SIZEOF_ARG] = {
5267 "git", "apply", "--whitespace=nowarn", NULL
5269 struct line *diff_hdr;
5273 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5278 apply_argv[argc++] = "--cached";
5279 if (revert || stage_line_type == LINE_STAT_STAGED)
5280 apply_argv[argc++] = "-R";
5281 apply_argv[argc++] = "-";
5282 apply_argv[argc++] = NULL;
5283 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5286 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5287 !stage_diff_write(&io, chunk, view->line + view->lines))
5291 run_io_bg(update_index_argv);
5293 return chunk ? TRUE : FALSE;
5297 stage_update(struct view *view, struct line *line)
5299 struct line *chunk = NULL;
5301 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5302 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5305 if (!stage_apply_chunk(view, chunk, FALSE)) {
5306 report("Failed to apply chunk");
5310 } else if (!stage_status.status) {
5311 view = VIEW(REQ_VIEW_STATUS);
5313 for (line = view->line; line < view->line + view->lines; line++)
5314 if (line->type == stage_line_type)
5317 if (!status_update_files(view, line + 1)) {
5318 report("Failed to update files");
5322 } else if (!status_update_file(&stage_status, stage_line_type)) {
5323 report("Failed to update file");
5331 stage_revert(struct view *view, struct line *line)
5333 struct line *chunk = NULL;
5335 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5336 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5339 if (!prompt_yesno("Are you sure you want to revert changes?"))
5342 if (!stage_apply_chunk(view, chunk, TRUE)) {
5343 report("Failed to revert chunk");
5349 return status_revert(stage_status.status ? &stage_status : NULL,
5350 stage_line_type, FALSE);
5356 stage_next(struct view *view, struct line *line)
5360 if (!stage_chunks) {
5361 static size_t alloc = 0;
5364 for (line = view->line; line < view->line + view->lines; line++) {
5365 if (line->type != LINE_DIFF_CHUNK)
5368 tmp = realloc_items(stage_chunk, &alloc,
5369 stage_chunks, sizeof(*tmp));
5371 report("Allocation failure");
5376 stage_chunk[stage_chunks++] = line - view->line;
5380 for (i = 0; i < stage_chunks; i++) {
5381 if (stage_chunk[i] > view->lineno) {
5382 do_scroll_view(view, stage_chunk[i] - view->lineno);
5383 report("Chunk %d of %d", i + 1, stage_chunks);
5388 report("No next chunk found");
5392 stage_request(struct view *view, enum request request, struct line *line)
5395 case REQ_STATUS_UPDATE:
5396 if (!stage_update(view, line))
5400 case REQ_STATUS_REVERT:
5401 if (!stage_revert(view, line))
5405 case REQ_STAGE_NEXT:
5406 if (stage_line_type == LINE_STAT_UNTRACKED) {
5407 report("File is untracked; press %s to add",
5408 get_key(REQ_STATUS_UPDATE));
5411 stage_next(view, line);
5415 if (!stage_status.new.name[0])
5417 if (stage_status.status == 'D') {
5418 report("File has been deleted.");
5422 open_editor(stage_status.status != '?', stage_status.new.name);
5426 /* Reload everything ... */
5429 case REQ_VIEW_BLAME:
5430 if (stage_status.new.name[0]) {
5431 string_copy(opt_file, stage_status.new.name);
5437 return pager_request(view, request, line);
5443 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5444 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5446 /* Check whether the staged entry still exists, and close the
5447 * stage view if it doesn't. */
5448 if (!status_exists(&stage_status, stage_line_type)) {
5449 status_restore(VIEW(REQ_VIEW_STATUS));
5450 return REQ_VIEW_CLOSE;
5453 if (stage_line_type == LINE_STAT_UNTRACKED) {
5454 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5455 report("Cannot display a directory");
5459 if (!prepare_update_file(view, stage_status.new.name)) {
5460 report("Failed to open file: %s", strerror(errno));
5464 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5469 static struct view_ops stage_ops = {
5486 char id[SIZEOF_REV]; /* SHA1 ID. */
5487 char title[128]; /* First line of the commit message. */
5488 char author[75]; /* Author of the commit. */
5489 struct tm time; /* Date from the author ident. */
5490 struct ref **refs; /* Repository references. */
5491 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5492 size_t graph_size; /* The width of the graph array. */
5493 bool has_parents; /* Rewritten --parents seen. */
5496 /* Size of rev graph with no "padding" columns */
5497 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5500 struct rev_graph *prev, *next, *parents;
5501 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5503 struct commit *commit;
5505 unsigned int boundary:1;
5508 /* Parents of the commit being visualized. */
5509 static struct rev_graph graph_parents[4];
5511 /* The current stack of revisions on the graph. */
5512 static struct rev_graph graph_stacks[4] = {
5513 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5514 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5515 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5516 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5520 graph_parent_is_merge(struct rev_graph *graph)
5522 return graph->parents->size > 1;
5526 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5528 struct commit *commit = graph->commit;
5530 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5531 commit->graph[commit->graph_size++] = symbol;
5535 clear_rev_graph(struct rev_graph *graph)
5537 graph->boundary = 0;
5538 graph->size = graph->pos = 0;
5539 graph->commit = NULL;
5540 memset(graph->parents, 0, sizeof(*graph->parents));
5544 done_rev_graph(struct rev_graph *graph)
5546 if (graph_parent_is_merge(graph) &&
5547 graph->pos < graph->size - 1 &&
5548 graph->next->size == graph->size + graph->parents->size - 1) {
5549 size_t i = graph->pos + graph->parents->size - 1;
5551 graph->commit->graph_size = i * 2;
5552 while (i < graph->next->size - 1) {
5553 append_to_rev_graph(graph, ' ');
5554 append_to_rev_graph(graph, '\\');
5559 clear_rev_graph(graph);
5563 push_rev_graph(struct rev_graph *graph, const char *parent)
5567 /* "Collapse" duplicate parents lines.
5569 * FIXME: This needs to also update update the drawn graph but
5570 * for now it just serves as a method for pruning graph lines. */
5571 for (i = 0; i < graph->size; i++)
5572 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5575 if (graph->size < SIZEOF_REVITEMS) {
5576 string_copy_rev(graph->rev[graph->size++], parent);
5581 get_rev_graph_symbol(struct rev_graph *graph)
5585 if (graph->boundary)
5586 symbol = REVGRAPH_BOUND;
5587 else if (graph->parents->size == 0)
5588 symbol = REVGRAPH_INIT;
5589 else if (graph_parent_is_merge(graph))
5590 symbol = REVGRAPH_MERGE;
5591 else if (graph->pos >= graph->size)
5592 symbol = REVGRAPH_BRANCH;
5594 symbol = REVGRAPH_COMMIT;
5600 draw_rev_graph(struct rev_graph *graph)
5603 chtype separator, line;
5605 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5606 static struct rev_filler fillers[] = {
5612 chtype symbol = get_rev_graph_symbol(graph);
5613 struct rev_filler *filler;
5616 if (opt_line_graphics)
5617 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5619 filler = &fillers[DEFAULT];
5621 for (i = 0; i < graph->pos; i++) {
5622 append_to_rev_graph(graph, filler->line);
5623 if (graph_parent_is_merge(graph->prev) &&
5624 graph->prev->pos == i)
5625 filler = &fillers[RSHARP];
5627 append_to_rev_graph(graph, filler->separator);
5630 /* Place the symbol for this revision. */
5631 append_to_rev_graph(graph, symbol);
5633 if (graph->prev->size > graph->size)
5634 filler = &fillers[RDIAG];
5636 filler = &fillers[DEFAULT];
5640 for (; i < graph->size; i++) {
5641 append_to_rev_graph(graph, filler->separator);
5642 append_to_rev_graph(graph, filler->line);
5643 if (graph_parent_is_merge(graph->prev) &&
5644 i < graph->prev->pos + graph->parents->size)
5645 filler = &fillers[RSHARP];
5646 if (graph->prev->size > graph->size)
5647 filler = &fillers[LDIAG];
5650 if (graph->prev->size > graph->size) {
5651 append_to_rev_graph(graph, filler->separator);
5652 if (filler->line != ' ')
5653 append_to_rev_graph(graph, filler->line);
5657 /* Prepare the next rev graph */
5659 prepare_rev_graph(struct rev_graph *graph)
5663 /* First, traverse all lines of revisions up to the active one. */
5664 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5665 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5668 push_rev_graph(graph->next, graph->rev[graph->pos]);
5671 /* Interleave the new revision parent(s). */
5672 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5673 push_rev_graph(graph->next, graph->parents->rev[i]);
5675 /* Lastly, put any remaining revisions. */
5676 for (i = graph->pos + 1; i < graph->size; i++)
5677 push_rev_graph(graph->next, graph->rev[i]);
5681 update_rev_graph(struct view *view, struct rev_graph *graph)
5683 /* If this is the finalizing update ... */
5685 prepare_rev_graph(graph);
5687 /* Graph visualization needs a one rev look-ahead,
5688 * so the first update doesn't visualize anything. */
5689 if (!graph->prev->commit)
5692 if (view->lines > 2)
5693 view->line[view->lines - 3].dirty = 1;
5694 if (view->lines > 1)
5695 view->line[view->lines - 2].dirty = 1;
5696 draw_rev_graph(graph->prev);
5697 done_rev_graph(graph->prev->prev);
5705 static const char *main_argv[SIZEOF_ARG] = {
5706 "git", "log", "--no-color", "--pretty=raw", "--parents",
5707 "--topo-order", "%(head)", NULL
5711 main_draw(struct view *view, struct line *line, unsigned int lineno)
5713 struct commit *commit = line->data;
5715 if (!*commit->author)
5718 if (opt_date && draw_date(view, &commit->time))
5721 if (opt_author && draw_author(view, commit->author))
5724 if (opt_rev_graph && commit->graph_size &&
5725 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5728 if (opt_show_refs && commit->refs) {
5732 enum line_type type;
5734 if (commit->refs[i]->head)
5735 type = LINE_MAIN_HEAD;
5736 else if (commit->refs[i]->ltag)
5737 type = LINE_MAIN_LOCAL_TAG;
5738 else if (commit->refs[i]->tag)
5739 type = LINE_MAIN_TAG;
5740 else if (commit->refs[i]->tracked)
5741 type = LINE_MAIN_TRACKED;
5742 else if (commit->refs[i]->remote)
5743 type = LINE_MAIN_REMOTE;
5745 type = LINE_MAIN_REF;
5747 if (draw_text(view, type, "[", TRUE) ||
5748 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5749 draw_text(view, type, "]", TRUE))
5752 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5754 } while (commit->refs[i++]->next);
5757 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5761 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5763 main_read(struct view *view, char *line)
5765 static struct rev_graph *graph = graph_stacks;
5766 enum line_type type;
5767 struct commit *commit;
5772 if (!view->lines && !view->parent)
5773 die("No revisions match the given arguments.");
5774 if (view->lines > 0) {
5775 commit = view->line[view->lines - 1].data;
5776 view->line[view->lines - 1].dirty = 1;
5777 if (!*commit->author) {
5780 graph->commit = NULL;
5783 update_rev_graph(view, graph);
5785 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5786 clear_rev_graph(&graph_stacks[i]);
5790 type = get_line_type(line);
5791 if (type == LINE_COMMIT) {
5792 commit = calloc(1, sizeof(struct commit));
5796 line += STRING_SIZE("commit ");
5798 graph->boundary = 1;
5802 string_copy_rev(commit->id, line);
5803 commit->refs = get_refs(commit->id);
5804 graph->commit = commit;
5805 add_line_data(view, commit, LINE_MAIN_COMMIT);
5807 while ((line = strchr(line, ' '))) {
5809 push_rev_graph(graph->parents, line);
5810 commit->has_parents = TRUE;
5817 commit = view->line[view->lines - 1].data;
5821 if (commit->has_parents)
5823 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5827 parse_author_line(line + STRING_SIZE("author "),
5828 commit->author, sizeof(commit->author),
5830 update_rev_graph(view, graph);
5831 graph = graph->next;
5835 /* Fill in the commit title if it has not already been set. */
5836 if (commit->title[0])
5839 /* Require titles to start with a non-space character at the
5840 * offset used by git log. */
5841 if (strncmp(line, " ", 4))
5844 /* Well, if the title starts with a whitespace character,
5845 * try to be forgiving. Otherwise we end up with no title. */
5846 while (isspace(*line))
5850 /* FIXME: More graceful handling of titles; append "..." to
5851 * shortened titles, etc. */
5853 string_ncopy(commit->title, line, strlen(line));
5854 view->line[view->lines - 1].dirty = 1;
5861 main_request(struct view *view, enum request request, struct line *line)
5863 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5867 open_view(view, REQ_VIEW_DIFF, flags);
5871 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5881 grep_refs(struct ref **refs, regex_t *regex)
5889 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5891 } while (refs[i++]->next);
5897 main_grep(struct view *view, struct line *line)
5899 struct commit *commit = line->data;
5900 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5901 char buf[DATE_COLS + 1];
5904 for (state = S_TITLE; state < S_END; state++) {
5908 case S_TITLE: text = commit->title; break;
5912 text = commit->author;
5917 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5924 if (grep_refs(commit->refs, view->regex) == TRUE)
5931 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5939 main_select(struct view *view, struct line *line)
5941 struct commit *commit = line->data;
5943 string_copy_rev(view->ref, commit->id);
5944 string_copy_rev(ref_commit, view->ref);
5947 static struct view_ops main_ops = {
5960 * Unicode / UTF-8 handling
5962 * NOTE: Much of the following code for dealing with unicode is derived from
5963 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5964 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5967 /* I've (over)annotated a lot of code snippets because I am not entirely
5968 * confident that the approach taken by this small UTF-8 interface is correct.
5972 unicode_width(unsigned long c)
5975 (c <= 0x115f /* Hangul Jamo */
5978 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5980 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5981 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5982 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5983 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5984 || (c >= 0xffe0 && c <= 0xffe6)
5985 || (c >= 0x20000 && c <= 0x2fffd)
5986 || (c >= 0x30000 && c <= 0x3fffd)))
5990 return opt_tab_size;
5995 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5996 * Illegal bytes are set one. */
5997 static const unsigned char utf8_bytes[256] = {
5998 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
5999 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
6000 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1,
6001 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,
6002 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,
6003 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,
6004 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,
6005 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,
6008 /* Decode UTF-8 multi-byte representation into a unicode character. */
6009 static inline unsigned long
6010 utf8_to_unicode(const char *string, size_t length)
6012 unsigned long unicode;
6016 unicode = string[0];
6019 unicode = (string[0] & 0x1f) << 6;
6020 unicode += (string[1] & 0x3f);
6023 unicode = (string[0] & 0x0f) << 12;
6024 unicode += ((string[1] & 0x3f) << 6);
6025 unicode += (string[2] & 0x3f);
6028 unicode = (string[0] & 0x0f) << 18;
6029 unicode += ((string[1] & 0x3f) << 12);
6030 unicode += ((string[2] & 0x3f) << 6);
6031 unicode += (string[3] & 0x3f);
6034 unicode = (string[0] & 0x0f) << 24;
6035 unicode += ((string[1] & 0x3f) << 18);
6036 unicode += ((string[2] & 0x3f) << 12);
6037 unicode += ((string[3] & 0x3f) << 6);
6038 unicode += (string[4] & 0x3f);
6041 unicode = (string[0] & 0x01) << 30;
6042 unicode += ((string[1] & 0x3f) << 24);
6043 unicode += ((string[2] & 0x3f) << 18);
6044 unicode += ((string[3] & 0x3f) << 12);
6045 unicode += ((string[4] & 0x3f) << 6);
6046 unicode += (string[5] & 0x3f);
6049 die("Invalid unicode length");
6052 /* Invalid characters could return the special 0xfffd value but NUL
6053 * should be just as good. */
6054 return unicode > 0xffff ? 0 : unicode;
6057 /* Calculates how much of string can be shown within the given maximum width
6058 * and sets trimmed parameter to non-zero value if all of string could not be
6059 * shown. If the reserve flag is TRUE, it will reserve at least one
6060 * trailing character, which can be useful when drawing a delimiter.
6062 * Returns the number of bytes to output from string to satisfy max_width. */
6064 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
6066 const char *start = string;
6067 const char *end = strchr(string, '\0');
6068 unsigned char last_bytes = 0;
6069 size_t last_ucwidth = 0;
6074 while (string < end) {
6075 int c = *(unsigned char *) string;
6076 unsigned char bytes = utf8_bytes[c];
6078 unsigned long unicode;
6080 if (string + bytes > end)
6083 /* Change representation to figure out whether
6084 * it is a single- or double-width character. */
6086 unicode = utf8_to_unicode(string, bytes);
6087 /* FIXME: Graceful handling of invalid unicode character. */
6091 ucwidth = unicode_width(unicode);
6093 if (*width > max_width) {
6096 if (reserve && *width == max_width) {
6097 string -= last_bytes;
6098 *width -= last_ucwidth;
6105 last_ucwidth = ucwidth;
6108 return string - start;
6116 /* Whether or not the curses interface has been initialized. */
6117 static bool cursed = FALSE;
6119 /* The status window is used for polling keystrokes. */
6120 static WINDOW *status_win;
6122 static bool status_empty = FALSE;
6124 /* Update status and title window. */
6126 report(const char *msg, ...)
6128 struct view *view = display[current_view];
6134 char buf[SIZEOF_STR];
6137 va_start(args, msg);
6138 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6139 buf[sizeof(buf) - 1] = 0;
6140 buf[sizeof(buf) - 2] = '.';
6141 buf[sizeof(buf) - 3] = '.';
6142 buf[sizeof(buf) - 4] = '.';
6148 if (!status_empty || *msg) {
6151 va_start(args, msg);
6153 wmove(status_win, 0, 0);
6155 vwprintw(status_win, msg, args);
6156 status_empty = FALSE;
6158 status_empty = TRUE;
6160 wclrtoeol(status_win);
6161 wrefresh(status_win);
6166 update_view_title(view);
6167 update_display_cursor(view);
6170 /* Controls when nodelay should be in effect when polling user input. */
6172 set_nonblocking_input(bool loading)
6174 static unsigned int loading_views;
6176 if ((loading == FALSE && loading_views-- == 1) ||
6177 (loading == TRUE && loading_views++ == 0))
6178 nodelay(status_win, loading);
6186 /* Initialize the curses library */
6187 if (isatty(STDIN_FILENO)) {
6188 cursed = !!initscr();
6191 /* Leave stdin and stdout alone when acting as a pager. */
6192 opt_tty = fopen("/dev/tty", "r+");
6194 die("Failed to open /dev/tty");
6195 cursed = !!newterm(NULL, opt_tty, opt_tty);
6199 die("Failed to initialize curses");
6201 nonl(); /* Tell curses not to do NL->CR/NL on output */
6202 cbreak(); /* Take input chars one at a time, no wait for \n */
6203 noecho(); /* Don't echo input */
6204 leaveok(stdscr, TRUE);
6209 getmaxyx(stdscr, y, x);
6210 status_win = newwin(1, 0, y - 1, 0);
6212 die("Failed to create status window");
6214 /* Enable keyboard mapping */
6215 keypad(status_win, TRUE);
6216 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6218 TABSIZE = opt_tab_size;
6219 if (opt_line_graphics) {
6220 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6225 get_input(bool prompting)
6234 foreach_view (view, i)
6237 /* Refresh, accept single keystroke of input */
6238 key = wgetch(status_win);
6240 /* wgetch() with nodelay() enabled returns ERR when
6241 * there's no input. */
6245 } else if (key == KEY_RESIZE) {
6248 getmaxyx(stdscr, height, width);
6250 /* Resize the status view first so the cursor is
6251 * placed properly. */
6252 wresize(status_win, 1, width);
6253 mvwin(status_win, height - 1, 0);
6254 wrefresh(status_win);
6256 redraw_display(TRUE);
6266 prompt_input(const char *prompt, input_handler handler, void *data)
6268 enum input_status status = INPUT_OK;
6269 static char buf[SIZEOF_STR];
6274 while (status == INPUT_OK || status == INPUT_SKIP) {
6277 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6278 wclrtoeol(status_win);
6280 key = get_input(TRUE);
6285 status = pos ? INPUT_STOP : INPUT_CANCEL;
6292 status = INPUT_CANCEL;
6296 status = INPUT_CANCEL;
6300 if (pos >= sizeof(buf)) {
6301 report("Input string too long");
6305 status = handler(data, buf, key);
6306 if (status == INPUT_OK)
6307 buf[pos++] = (char) key;
6311 /* Clear the status window */
6312 status_empty = FALSE;
6315 if (status == INPUT_CANCEL)
6323 static enum input_status
6324 prompt_yesno_handler(void *data, char *buf, int c)
6326 if (c == 'y' || c == 'Y')
6328 if (c == 'n' || c == 'N')
6329 return INPUT_CANCEL;
6334 prompt_yesno(const char *prompt)
6336 char prompt2[SIZEOF_STR];
6338 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6341 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6344 static enum input_status
6345 read_prompt_handler(void *data, char *buf, int c)
6347 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6351 read_prompt(const char *prompt)
6353 return prompt_input(prompt, read_prompt_handler, NULL);
6357 * Repository properties
6361 git_properties(const char **argv, const char *separators,
6362 int (*read_property)(char *, size_t, char *, size_t))
6366 if (init_io_rd(&io, argv, NULL, FORMAT_NONE))
6367 return read_properties(&io, separators, read_property);
6371 static struct ref *refs = NULL;
6372 static size_t refs_alloc = 0;
6373 static size_t refs_size = 0;
6375 /* Id <-> ref store */
6376 static struct ref ***id_refs = NULL;
6377 static size_t id_refs_alloc = 0;
6378 static size_t id_refs_size = 0;
6381 compare_refs(const void *ref1_, const void *ref2_)
6383 const struct ref *ref1 = *(const struct ref **)ref1_;
6384 const struct ref *ref2 = *(const struct ref **)ref2_;
6386 if (ref1->tag != ref2->tag)
6387 return ref2->tag - ref1->tag;
6388 if (ref1->ltag != ref2->ltag)
6389 return ref2->ltag - ref2->ltag;
6390 if (ref1->head != ref2->head)
6391 return ref2->head - ref1->head;
6392 if (ref1->tracked != ref2->tracked)
6393 return ref2->tracked - ref1->tracked;
6394 if (ref1->remote != ref2->remote)
6395 return ref2->remote - ref1->remote;
6396 return strcmp(ref1->name, ref2->name);
6399 static struct ref **
6400 get_refs(const char *id)
6402 struct ref ***tmp_id_refs;
6403 struct ref **ref_list = NULL;
6404 size_t ref_list_alloc = 0;
6405 size_t ref_list_size = 0;
6408 for (i = 0; i < id_refs_size; i++)
6409 if (!strcmp(id, id_refs[i][0]->id))
6412 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6417 id_refs = tmp_id_refs;
6419 for (i = 0; i < refs_size; i++) {
6422 if (strcmp(id, refs[i].id))
6425 tmp = realloc_items(ref_list, &ref_list_alloc,
6426 ref_list_size + 1, sizeof(*ref_list));
6434 ref_list[ref_list_size] = &refs[i];
6435 /* XXX: The properties of the commit chains ensures that we can
6436 * safely modify the shared ref. The repo references will
6437 * always be similar for the same id. */
6438 ref_list[ref_list_size]->next = 1;
6444 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6445 ref_list[ref_list_size - 1]->next = 0;
6446 id_refs[id_refs_size++] = ref_list;
6453 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6458 bool remote = FALSE;
6459 bool tracked = FALSE;
6460 bool check_replace = FALSE;
6463 if (!prefixcmp(name, "refs/tags/")) {
6464 if (!suffixcmp(name, namelen, "^{}")) {
6467 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6468 check_replace = TRUE;
6474 namelen -= STRING_SIZE("refs/tags/");
6475 name += STRING_SIZE("refs/tags/");
6477 } else if (!prefixcmp(name, "refs/remotes/")) {
6479 namelen -= STRING_SIZE("refs/remotes/");
6480 name += STRING_SIZE("refs/remotes/");
6481 tracked = !strcmp(opt_remote, name);
6483 } else if (!prefixcmp(name, "refs/heads/")) {
6484 namelen -= STRING_SIZE("refs/heads/");
6485 name += STRING_SIZE("refs/heads/");
6486 head = !strncmp(opt_head, name, namelen);
6488 } else if (!strcmp(name, "HEAD")) {
6489 string_ncopy(opt_head_rev, id, idlen);
6493 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6494 /* it's an annotated tag, replace the previous sha1 with the
6495 * resolved commit id; relies on the fact git-ls-remote lists
6496 * the commit id of an annotated tag right before the commit id
6498 refs[refs_size - 1].ltag = ltag;
6499 string_copy_rev(refs[refs_size - 1].id, id);
6503 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6507 ref = &refs[refs_size++];
6508 ref->name = malloc(namelen + 1);
6512 strncpy(ref->name, name, namelen);
6513 ref->name[namelen] = 0;
6517 ref->remote = remote;
6518 ref->tracked = tracked;
6519 string_copy_rev(ref->id, id);
6527 static const char *ls_remote_argv[SIZEOF_ARG] = {
6528 "git", "ls-remote", ".", NULL
6530 static bool init = FALSE;
6533 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6540 while (refs_size > 0)
6541 free(refs[--refs_size].name);
6542 while (id_refs_size > 0)
6543 free(id_refs[--id_refs_size]);
6545 return git_properties(ls_remote_argv, "\t", read_ref);
6549 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6551 if (!strcmp(name, "i18n.commitencoding"))
6552 string_ncopy(opt_encoding, value, valuelen);
6554 if (!strcmp(name, "core.editor"))
6555 string_ncopy(opt_editor, value, valuelen);
6557 /* branch.<head>.remote */
6559 !strncmp(name, "branch.", 7) &&
6560 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6561 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6562 string_ncopy(opt_remote, value, valuelen);
6564 if (*opt_head && *opt_remote &&
6565 !strncmp(name, "branch.", 7) &&
6566 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6567 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6568 size_t from = strlen(opt_remote);
6570 if (!prefixcmp(value, "refs/heads/")) {
6571 value += STRING_SIZE("refs/heads/");
6572 valuelen -= STRING_SIZE("refs/heads/");
6575 if (!string_format_from(opt_remote, &from, "/%s", value))
6583 load_git_config(void)
6585 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6587 return git_properties(config_list_argv, "=", read_repo_config_option);
6591 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6593 if (!opt_git_dir[0]) {
6594 string_ncopy(opt_git_dir, name, namelen);
6596 } else if (opt_is_inside_work_tree == -1) {
6597 /* This can be 3 different values depending on the
6598 * version of git being used. If git-rev-parse does not
6599 * understand --is-inside-work-tree it will simply echo
6600 * the option else either "true" or "false" is printed.
6601 * Default to true for the unknown case. */
6602 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6604 } else if (*name == '.') {
6605 string_ncopy(opt_cdup, name, namelen);
6608 string_ncopy(opt_prefix, name, namelen);
6615 load_repo_info(void)
6617 const char *head_argv[] = {
6618 "git", "symbolic-ref", "HEAD", NULL
6620 const char *rev_parse_argv[] = {
6621 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6622 "--show-cdup", "--show-prefix", NULL
6625 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6626 chomp_string(opt_head);
6627 if (!prefixcmp(opt_head, "refs/heads/")) {
6628 char *offset = opt_head + STRING_SIZE("refs/heads/");
6630 memmove(opt_head, offset, strlen(offset) + 1);
6634 return git_properties(rev_parse_argv, "=", read_repo_info);
6638 read_properties(struct io *io, const char *separators,
6639 int (*read_property)(char *, size_t, char *, size_t))
6647 while (state == OK && (name = io_get(io, '\n', TRUE))) {
6652 name = chomp_string(name);
6653 namelen = strcspn(name, separators);
6655 if (name[namelen]) {
6657 value = chomp_string(name + namelen + 1);
6658 valuelen = strlen(value);
6665 state = read_property(name, namelen, value, valuelen);
6668 if (state != ERR && io_error(io))
6680 static void __NORETURN
6683 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6689 static void __NORETURN
6690 die(const char *err, ...)
6696 va_start(args, err);
6697 fputs("tig: ", stderr);
6698 vfprintf(stderr, err, args);
6699 fputs("\n", stderr);
6706 warn(const char *msg, ...)
6710 va_start(args, msg);
6711 fputs("tig warning: ", stderr);
6712 vfprintf(stderr, msg, args);
6713 fputs("\n", stderr);
6718 main(int argc, const char *argv[])
6720 const char **run_argv = NULL;
6722 enum request request;
6725 signal(SIGINT, quit);
6727 if (setlocale(LC_ALL, "")) {
6728 char *codeset = nl_langinfo(CODESET);
6730 string_ncopy(opt_codeset, codeset, strlen(codeset));
6733 if (load_repo_info() == ERR)
6734 die("Failed to load repo info.");
6736 if (load_options() == ERR)
6737 die("Failed to load user config.");
6739 if (load_git_config() == ERR)
6740 die("Failed to load repo config.");
6742 request = parse_options(argc, argv, &run_argv);
6743 if (request == REQ_NONE)
6746 /* Require a git repository unless when running in pager mode. */
6747 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6748 die("Not a git repository");
6750 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6753 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6754 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6755 if (opt_iconv == ICONV_NONE)
6756 die("Failed to initialize character set conversion");
6759 if (load_refs() == ERR)
6760 die("Failed to load refs.");
6762 foreach_view (view, i)
6763 argv_from_env(view->ops->argv, view->cmd_env);
6767 if (request == REQ_VIEW_PAGER || run_argv) {
6768 if (request == REQ_VIEW_PAGER)
6769 io_open(&VIEW(request)->io, "");
6770 else if (!prepare_update(VIEW(request), run_argv, NULL, FORMAT_NONE))
6771 die("Failed to format arguments");
6772 open_view(NULL, request, OPEN_PREPARED);
6776 while (view_driver(display[current_view], request)) {
6777 int key = get_input(FALSE);
6779 view = display[current_view];
6780 request = get_keybinding(view->keymap, key);
6782 /* Some low-level request handling. This keeps access to
6783 * status_win restricted. */
6787 char *cmd = read_prompt(":");
6790 struct view *next = VIEW(REQ_VIEW_PAGER);
6791 const char *argv[SIZEOF_ARG] = { "git" };
6794 /* When running random commands, initially show the
6795 * command in the title. However, it maybe later be
6796 * overwritten if a commit line is selected. */
6797 string_ncopy(next->ref, cmd, strlen(cmd));
6799 if (!argv_from_string(argv, &argc, cmd)) {
6800 report("Too many arguments");
6801 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6802 report("Failed to format command");
6804 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6812 case REQ_SEARCH_BACK:
6814 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6815 char *search = read_prompt(prompt);
6818 string_ncopy(opt_search, search, strlen(search));