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 #define foreach_displayed_view(view, i) \
1718 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1720 #define displayed_views() (display[1] != NULL ? 2 : 1)
1722 /* Current head and commit ID */
1723 static char ref_blob[SIZEOF_REF] = "";
1724 static char ref_commit[SIZEOF_REF] = "HEAD";
1725 static char ref_head[SIZEOF_REF] = "HEAD";
1728 const char *name; /* View name */
1729 const char *cmd_env; /* Command line set via environment */
1730 const char *id; /* Points to either of ref_{head,commit,blob} */
1732 struct view_ops *ops; /* View operations */
1734 enum keymap keymap; /* What keymap does this view have */
1735 bool git_dir; /* Whether the view requires a git directory. */
1737 char ref[SIZEOF_REF]; /* Hovered commit reference */
1738 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1740 int height, width; /* The width and height of the main window */
1741 WINDOW *win; /* The main window */
1742 WINDOW *title; /* The title window living below the main window */
1745 unsigned long offset; /* Offset of the window top */
1746 unsigned long lineno; /* Current line number */
1747 unsigned long p_offset; /* Previous offset of the window top */
1748 unsigned long p_lineno; /* Previous current line number */
1749 bool p_restore; /* Should the previous position be restored. */
1752 char grep[SIZEOF_STR]; /* Search string */
1753 regex_t *regex; /* Pre-compiled regex */
1755 /* If non-NULL, points to the view that opened this view. If this view
1756 * is closed tig will switch back to the parent view. */
1757 struct view *parent;
1760 size_t lines; /* Total number of lines */
1761 struct line *line; /* Line index */
1762 size_t line_alloc; /* Total number of allocated lines */
1763 unsigned int digits; /* Number of digits in the lines member. */
1766 struct line *curline; /* Line currently being drawn. */
1767 enum line_type curtype; /* Attribute currently used for drawing. */
1768 unsigned long col; /* Column when drawing. */
1769 bool has_scrolled; /* View was scrolled. */
1779 /* What type of content being displayed. Used in the title bar. */
1781 /* Default command arguments. */
1783 /* Open and reads in all view content. */
1784 bool (*open)(struct view *view);
1785 /* Read one line; updates view->line. */
1786 bool (*read)(struct view *view, char *data);
1787 /* Draw one line; @lineno must be < view->height. */
1788 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1789 /* Depending on view handle a special requests. */
1790 enum request (*request)(struct view *view, enum request request, struct line *line);
1791 /* Search for regex in a line. */
1792 bool (*grep)(struct view *view, struct line *line);
1794 void (*select)(struct view *view, struct line *line);
1797 static struct view_ops blame_ops;
1798 static struct view_ops blob_ops;
1799 static struct view_ops diff_ops;
1800 static struct view_ops help_ops;
1801 static struct view_ops log_ops;
1802 static struct view_ops main_ops;
1803 static struct view_ops pager_ops;
1804 static struct view_ops stage_ops;
1805 static struct view_ops status_ops;
1806 static struct view_ops tree_ops;
1808 #define VIEW_STR(name, env, ref, ops, map, git) \
1809 { name, #env, ref, ops, map, git }
1811 #define VIEW_(id, name, ops, git, ref) \
1812 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1815 static struct view views[] = {
1816 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1817 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1818 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1819 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1820 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1821 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1822 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1823 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1824 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1825 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1828 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1829 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1831 #define foreach_view(view, i) \
1832 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1834 #define view_is_displayed(view) \
1835 (view == display[0] || view == display[1])
1842 static int line_graphics[] = {
1843 /* LINE_GRAPHIC_VLINE: */ '|'
1847 set_view_attr(struct view *view, enum line_type type)
1849 if (!view->curline->selected && view->curtype != type) {
1850 wattrset(view->win, get_line_attr(type));
1851 wchgat(view->win, -1, 0, type, NULL);
1852 view->curtype = type;
1857 draw_chars(struct view *view, enum line_type type, const char *string,
1858 int max_len, bool use_tilde)
1862 int trimmed = FALSE;
1868 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1870 col = len = strlen(string);
1871 if (len > max_len) {
1875 col = len = max_len;
1880 set_view_attr(view, type);
1881 waddnstr(view->win, string, len);
1882 if (trimmed && use_tilde) {
1883 set_view_attr(view, LINE_DELIMITER);
1884 waddch(view->win, '~');
1892 draw_space(struct view *view, enum line_type type, int max, int spaces)
1894 static char space[] = " ";
1897 spaces = MIN(max, spaces);
1899 while (spaces > 0) {
1900 int len = MIN(spaces, sizeof(space) - 1);
1902 col += draw_chars(view, type, space, spaces, FALSE);
1910 draw_lineno(struct view *view, unsigned int lineno)
1913 int digits3 = view->digits < 3 ? 3 : view->digits;
1914 int max_number = MIN(digits3, STRING_SIZE(number));
1915 int max = view->width - view->col;
1918 if (max < max_number)
1921 lineno += view->offset + 1;
1922 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1923 static char fmt[] = "%1ld";
1925 if (view->digits <= 9)
1926 fmt[1] = '0' + digits3;
1928 if (!string_format(number, fmt, lineno))
1930 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1932 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1936 set_view_attr(view, LINE_DEFAULT);
1937 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1942 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1945 return view->width - view->col <= 0;
1949 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1951 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1952 return view->width - view->col <= 0;
1956 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1958 int max = view->width - view->col;
1964 set_view_attr(view, type);
1965 /* Using waddch() instead of waddnstr() ensures that
1966 * they'll be rendered correctly for the cursor line. */
1967 for (i = 0; i < size; i++)
1968 waddch(view->win, graphic[i]);
1972 waddch(view->win, ' ');
1976 return view->width - view->col <= 0;
1980 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1982 int max = MIN(view->width - view->col, len);
1986 col = draw_chars(view, type, text, max - 1, trim);
1988 col = draw_space(view, type, max - 1, max - 1);
1990 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1991 return view->width - view->col <= 0;
1995 draw_date(struct view *view, struct tm *time)
1997 char buf[DATE_COLS];
2002 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
2003 date = timelen ? buf : NULL;
2005 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
2009 draw_author(struct view *view, const char *author)
2011 bool trim = opt_author_cols == 0 || opt_author_cols > 5 || !author;
2014 static char initials[10];
2017 #define is_initial_sep(c) (isspace(c) || ispunct(c) || (c) == '@')
2019 memset(initials, 0, sizeof(initials));
2020 for (pos = 0; *author && pos < opt_author_cols - 1; author++, pos++) {
2021 while (is_initial_sep(*author))
2023 strncpy(&initials[pos], author, sizeof(initials) - 1 - pos);
2024 while (*author && !is_initial_sep(author[1]))
2031 return draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, trim);
2035 draw_view_line(struct view *view, unsigned int lineno)
2038 bool selected = (view->offset + lineno == view->lineno);
2040 assert(view_is_displayed(view));
2042 if (view->offset + lineno >= view->lines)
2045 line = &view->line[view->offset + lineno];
2047 wmove(view->win, lineno, 0);
2049 wclrtoeol(view->win);
2051 view->curline = line;
2052 view->curtype = LINE_NONE;
2053 line->selected = FALSE;
2054 line->dirty = line->cleareol = 0;
2057 set_view_attr(view, LINE_CURSOR);
2058 line->selected = TRUE;
2059 view->ops->select(view, line);
2062 return view->ops->draw(view, line, lineno);
2066 redraw_view_dirty(struct view *view)
2071 for (lineno = 0; lineno < view->height; lineno++) {
2072 if (view->offset + lineno >= view->lines)
2074 if (!view->line[view->offset + lineno].dirty)
2077 if (!draw_view_line(view, lineno))
2083 wnoutrefresh(view->win);
2087 redraw_view_from(struct view *view, int lineno)
2089 assert(0 <= lineno && lineno < view->height);
2091 for (; lineno < view->height; lineno++) {
2092 if (!draw_view_line(view, lineno))
2096 wnoutrefresh(view->win);
2100 redraw_view(struct view *view)
2103 redraw_view_from(view, 0);
2108 update_view_title(struct view *view)
2110 char buf[SIZEOF_STR];
2111 char state[SIZEOF_STR];
2112 size_t bufpos = 0, statelen = 0;
2114 assert(view_is_displayed(view));
2116 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2117 unsigned int view_lines = view->offset + view->height;
2118 unsigned int lines = view->lines
2119 ? MIN(view_lines, view->lines) * 100 / view->lines
2122 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2131 time_t secs = time(NULL) - view->start_time;
2133 /* Three git seconds are a long time ... */
2135 string_format_from(state, &statelen, " loading %lds", secs);
2138 string_format_from(buf, &bufpos, "[%s]", view->name);
2139 if (*view->ref && bufpos < view->width) {
2140 size_t refsize = strlen(view->ref);
2141 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2143 if (minsize < view->width)
2144 refsize = view->width - minsize + 7;
2145 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2148 if (statelen && bufpos < view->width) {
2149 string_format_from(buf, &bufpos, "%s", state);
2152 if (view == display[current_view])
2153 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2155 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2157 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2158 wclrtoeol(view->title);
2159 wnoutrefresh(view->title);
2163 resize_display(void)
2166 struct view *base = display[0];
2167 struct view *view = display[1] ? display[1] : display[0];
2169 /* Setup window dimensions */
2171 getmaxyx(stdscr, base->height, base->width);
2173 /* Make room for the status window. */
2177 /* Horizontal split. */
2178 view->width = base->width;
2179 view->height = SCALE_SPLIT_VIEW(base->height);
2180 base->height -= view->height;
2182 /* Make room for the title bar. */
2186 /* Make room for the title bar. */
2191 foreach_displayed_view (view, i) {
2193 view->win = newwin(view->height, 0, offset, 0);
2195 die("Failed to create %s view", view->name);
2197 scrollok(view->win, FALSE);
2199 view->title = newwin(1, 0, offset + view->height, 0);
2201 die("Failed to create title window");
2204 wresize(view->win, view->height, view->width);
2205 mvwin(view->win, offset, 0);
2206 mvwin(view->title, offset + view->height, 0);
2209 offset += view->height + 1;
2214 redraw_display(bool clear)
2219 foreach_displayed_view (view, i) {
2223 update_view_title(view);
2228 toggle_view_option(bool *option, const char *help)
2231 redraw_display(FALSE);
2232 report("%sabling %s", *option ? "En" : "Dis", help);
2239 /* Scrolling backend */
2241 do_scroll_view(struct view *view, int lines)
2243 bool redraw_current_line = FALSE;
2245 /* The rendering expects the new offset. */
2246 view->offset += lines;
2248 assert(0 <= view->offset && view->offset < view->lines);
2251 /* Move current line into the view. */
2252 if (view->lineno < view->offset) {
2253 view->lineno = view->offset;
2254 redraw_current_line = TRUE;
2255 } else if (view->lineno >= view->offset + view->height) {
2256 view->lineno = view->offset + view->height - 1;
2257 redraw_current_line = TRUE;
2260 assert(view->offset <= view->lineno && view->lineno < view->lines);
2262 /* Redraw the whole screen if scrolling is pointless. */
2263 if (view->height < ABS(lines)) {
2267 int line = lines > 0 ? view->height - lines : 0;
2268 int end = line + ABS(lines);
2270 scrollok(view->win, TRUE);
2271 wscrl(view->win, lines);
2272 scrollok(view->win, FALSE);
2274 while (line < end && draw_view_line(view, line))
2277 if (redraw_current_line)
2278 draw_view_line(view, view->lineno - view->offset);
2279 wnoutrefresh(view->win);
2282 view->has_scrolled = TRUE;
2286 /* Scroll frontend */
2288 scroll_view(struct view *view, enum request request)
2292 assert(view_is_displayed(view));
2295 case REQ_SCROLL_PAGE_DOWN:
2296 lines = view->height;
2297 case REQ_SCROLL_LINE_DOWN:
2298 if (view->offset + lines > view->lines)
2299 lines = view->lines - view->offset;
2301 if (lines == 0 || view->offset + view->height >= view->lines) {
2302 report("Cannot scroll beyond the last line");
2307 case REQ_SCROLL_PAGE_UP:
2308 lines = view->height;
2309 case REQ_SCROLL_LINE_UP:
2310 if (lines > view->offset)
2311 lines = view->offset;
2314 report("Cannot scroll beyond the first line");
2322 die("request %d not handled in switch", request);
2325 do_scroll_view(view, lines);
2330 move_view(struct view *view, enum request request)
2332 int scroll_steps = 0;
2336 case REQ_MOVE_FIRST_LINE:
2337 steps = -view->lineno;
2340 case REQ_MOVE_LAST_LINE:
2341 steps = view->lines - view->lineno - 1;
2344 case REQ_MOVE_PAGE_UP:
2345 steps = view->height > view->lineno
2346 ? -view->lineno : -view->height;
2349 case REQ_MOVE_PAGE_DOWN:
2350 steps = view->lineno + view->height >= view->lines
2351 ? view->lines - view->lineno - 1 : view->height;
2363 die("request %d not handled in switch", request);
2366 if (steps <= 0 && view->lineno == 0) {
2367 report("Cannot move beyond the first line");
2370 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2371 report("Cannot move beyond the last line");
2375 /* Move the current line */
2376 view->lineno += steps;
2377 assert(0 <= view->lineno && view->lineno < view->lines);
2379 /* Check whether the view needs to be scrolled */
2380 if (view->lineno < view->offset ||
2381 view->lineno >= view->offset + view->height) {
2382 scroll_steps = steps;
2383 if (steps < 0 && -steps > view->offset) {
2384 scroll_steps = -view->offset;
2386 } else if (steps > 0) {
2387 if (view->lineno == view->lines - 1 &&
2388 view->lines > view->height) {
2389 scroll_steps = view->lines - view->offset - 1;
2390 if (scroll_steps >= view->height)
2391 scroll_steps -= view->height - 1;
2396 if (!view_is_displayed(view)) {
2397 view->offset += scroll_steps;
2398 assert(0 <= view->offset && view->offset < view->lines);
2399 view->ops->select(view, &view->line[view->lineno]);
2403 /* Repaint the old "current" line if we be scrolling */
2404 if (ABS(steps) < view->height)
2405 draw_view_line(view, view->lineno - steps - view->offset);
2408 do_scroll_view(view, scroll_steps);
2412 /* Draw the current line */
2413 draw_view_line(view, view->lineno - view->offset);
2415 wnoutrefresh(view->win);
2424 static void search_view(struct view *view, enum request request);
2427 select_view_line(struct view *view, unsigned long lineno)
2429 if (lineno - view->offset >= view->height) {
2430 view->offset = lineno;
2431 view->lineno = lineno;
2432 if (view_is_displayed(view))
2436 unsigned long old_lineno = view->lineno - view->offset;
2438 view->lineno = lineno;
2439 if (view_is_displayed(view)) {
2440 draw_view_line(view, old_lineno);
2441 draw_view_line(view, view->lineno - view->offset);
2442 wnoutrefresh(view->win);
2444 view->ops->select(view, &view->line[view->lineno]);
2450 find_next(struct view *view, enum request request)
2452 unsigned long lineno = view->lineno;
2457 report("No previous search");
2459 search_view(view, request);
2469 case REQ_SEARCH_BACK:
2478 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2479 lineno += direction;
2481 /* Note, lineno is unsigned long so will wrap around in which case it
2482 * will become bigger than view->lines. */
2483 for (; lineno < view->lines; lineno += direction) {
2484 if (view->ops->grep(view, &view->line[lineno])) {
2485 select_view_line(view, lineno);
2486 report("Line %ld matches '%s'", lineno + 1, view->grep);
2491 report("No match found for '%s'", view->grep);
2495 search_view(struct view *view, enum request request)
2500 regfree(view->regex);
2503 view->regex = calloc(1, sizeof(*view->regex));
2508 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2509 if (regex_err != 0) {
2510 char buf[SIZEOF_STR] = "unknown error";
2512 regerror(regex_err, view->regex, buf, sizeof(buf));
2513 report("Search failed: %s", buf);
2517 string_copy(view->grep, opt_search);
2519 find_next(view, request);
2523 * Incremental updating
2527 reset_view(struct view *view)
2531 for (i = 0; i < view->lines; i++)
2532 free(view->line[i].data);
2535 view->p_offset = view->offset;
2536 view->p_lineno = view->lineno;
2542 view->line_alloc = 0;
2544 view->update_secs = 0;
2548 free_argv(const char *argv[])
2552 for (argc = 0; argv[argc]; argc++)
2553 free((void *) argv[argc]);
2557 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2559 char buf[SIZEOF_STR];
2561 bool noreplace = flags == FORMAT_NONE;
2563 free_argv(dst_argv);
2565 for (argc = 0; src_argv[argc]; argc++) {
2566 const char *arg = src_argv[argc];
2570 char *next = strstr(arg, "%(");
2571 int len = next - arg;
2574 if (!next || noreplace) {
2575 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2580 } else if (!prefixcmp(next, "%(directory)")) {
2583 } else if (!prefixcmp(next, "%(file)")) {
2586 } else if (!prefixcmp(next, "%(ref)")) {
2587 value = *opt_ref ? opt_ref : "HEAD";
2589 } else if (!prefixcmp(next, "%(head)")) {
2592 } else if (!prefixcmp(next, "%(commit)")) {
2595 } else if (!prefixcmp(next, "%(blob)")) {
2599 report("Unknown replacement: `%s`", next);
2603 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2606 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2609 dst_argv[argc] = strdup(buf);
2610 if (!dst_argv[argc])
2614 dst_argv[argc] = NULL;
2616 return src_argv[argc] == NULL;
2620 restore_view_position(struct view *view)
2622 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2625 /* Changing the view position cancels the restoring. */
2626 /* FIXME: Changing back to the first line is not detected. */
2627 if (view->offset != 0 || view->lineno != 0) {
2628 view->p_restore = FALSE;
2632 if (view->p_lineno >= view->lines) {
2633 view->p_lineno = view->lines > 0 ? view->lines - 1 : 0;
2634 if (view->p_offset >= view->p_lineno) {
2635 unsigned long half = view->height / 2;
2637 if (view->p_lineno > half)
2638 view->p_offset = view->p_lineno - half;
2644 if (view_is_displayed(view) &&
2645 view->offset != view->p_offset &&
2646 view->lineno != view->p_lineno)
2649 view->offset = view->p_offset;
2650 view->lineno = view->p_lineno;
2651 view->p_restore = FALSE;
2657 end_update(struct view *view, bool force)
2661 while (!view->ops->read(view, NULL))
2664 set_nonblocking_input(FALSE);
2666 kill_io(view->pipe);
2667 done_io(view->pipe);
2672 setup_update(struct view *view, const char *vid)
2674 set_nonblocking_input(TRUE);
2676 string_copy_rev(view->vid, vid);
2677 view->pipe = &view->io;
2678 view->start_time = time(NULL);
2682 prepare_update(struct view *view, const char *argv[], const char *dir,
2683 enum format_flags flags)
2686 end_update(view, TRUE);
2687 return init_io_rd(&view->io, argv, dir, flags);
2691 prepare_update_file(struct view *view, const char *name)
2694 end_update(view, TRUE);
2695 return io_open(&view->io, name);
2699 begin_update(struct view *view, bool refresh)
2702 end_update(view, TRUE);
2705 if (!start_io(&view->io))
2709 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2712 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2715 /* Put the current ref_* value to the view title ref
2716 * member. This is needed by the blob view. Most other
2717 * views sets it automatically after loading because the
2718 * first line is a commit line. */
2719 string_copy_rev(view->ref, view->id);
2722 setup_update(view, view->id);
2727 #define ITEM_CHUNK_SIZE 256
2729 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2731 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2732 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2734 if (mem == NULL || num_chunks != num_chunks_new) {
2735 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2736 mem = realloc(mem, *size * item_size);
2742 static struct line *
2743 realloc_lines(struct view *view, size_t line_size)
2745 size_t alloc = view->line_alloc;
2746 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2747 sizeof(*view->line));
2753 view->line_alloc = alloc;
2758 update_view(struct view *view)
2760 char out_buffer[BUFSIZ * 2];
2762 /* Clear the view and redraw everything since the tree sorting
2763 * might have rearranged things. */
2764 bool redraw = view->lines == 0;
2765 bool can_read = TRUE;
2770 if (!io_can_read(view->pipe)) {
2771 if (view->lines == 0) {
2772 time_t secs = time(NULL) - view->start_time;
2774 if (secs > 1 && secs > view->update_secs) {
2775 if (view->update_secs == 0)
2777 update_view_title(view);
2778 view->update_secs = secs;
2784 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2785 if (opt_iconv != ICONV_NONE) {
2786 ICONV_CONST char *inbuf = line;
2787 size_t inlen = strlen(line) + 1;
2789 char *outbuf = out_buffer;
2790 size_t outlen = sizeof(out_buffer);
2794 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2795 if (ret != (size_t) -1)
2799 if (!view->ops->read(view, line)) {
2800 report("Allocation failure");
2801 end_update(view, TRUE);
2807 unsigned long lines = view->lines;
2810 for (digits = 0; lines; digits++)
2813 /* Keep the displayed view in sync with line number scaling. */
2814 if (digits != view->digits) {
2815 view->digits = digits;
2816 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2821 if (io_error(view->pipe)) {
2822 report("Failed to read: %s", io_strerror(view->pipe));
2823 end_update(view, TRUE);
2825 } else if (io_eof(view->pipe)) {
2827 end_update(view, FALSE);
2830 if (restore_view_position(view))
2833 if (!view_is_displayed(view))
2837 redraw_view_from(view, 0);
2839 redraw_view_dirty(view);
2841 /* Update the title _after_ the redraw so that if the redraw picks up a
2842 * commit reference in view->ref it'll be available here. */
2843 update_view_title(view);
2847 static struct line *
2848 add_line_data(struct view *view, void *data, enum line_type type)
2852 if (!realloc_lines(view, view->lines + 1))
2855 line = &view->line[view->lines++];
2856 memset(line, 0, sizeof(*line));
2864 static struct line *
2865 add_line_text(struct view *view, const char *text, enum line_type type)
2867 char *data = text ? strdup(text) : NULL;
2869 return data ? add_line_data(view, data, type) : NULL;
2872 static struct line *
2873 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2875 char buf[SIZEOF_STR];
2878 va_start(args, fmt);
2879 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2883 return buf[0] ? add_line_text(view, buf, type) : NULL;
2891 OPEN_DEFAULT = 0, /* Use default view switching. */
2892 OPEN_SPLIT = 1, /* Split current view. */
2893 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2894 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2895 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2896 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2897 OPEN_PREPARED = 32, /* Open already prepared command. */
2901 open_view(struct view *prev, enum request request, enum open_flags flags)
2903 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2904 bool split = !!(flags & OPEN_SPLIT);
2905 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2906 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2907 struct view *view = VIEW(request);
2908 int nviews = displayed_views();
2909 struct view *base_view = display[0];
2911 if (view == prev && nviews == 1 && !reload) {
2912 report("Already in %s view", view->name);
2916 if (view->git_dir && !opt_git_dir[0]) {
2917 report("The %s view is disabled in pager view", view->name);
2925 } else if (!nomaximize) {
2926 /* Maximize the current view. */
2927 memset(display, 0, sizeof(display));
2929 display[current_view] = view;
2932 /* Resize the view when switching between split- and full-screen,
2933 * or when switching between two different full-screen views. */
2934 if (nviews != displayed_views() ||
2935 (nviews == 1 && base_view != display[0]))
2938 if (view->ops->open) {
2940 end_update(view, TRUE);
2941 if (!view->ops->open(view)) {
2942 report("Failed to load %s view", view->name);
2945 restore_view_position(view);
2947 } else if ((reload || strcmp(view->vid, view->id)) &&
2948 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2949 report("Failed to load %s view", view->name);
2953 if (split && prev->lineno - prev->offset >= prev->height) {
2954 /* Take the title line into account. */
2955 int lines = prev->lineno - prev->offset - prev->height + 1;
2957 /* Scroll the view that was split if the current line is
2958 * outside the new limited view. */
2959 do_scroll_view(prev, lines);
2962 if (prev && view != prev) {
2963 if (split && !backgrounded) {
2964 /* "Blur" the previous view. */
2965 update_view_title(prev);
2968 view->parent = prev;
2971 if (view->pipe && view->lines == 0) {
2972 /* Clear the old view and let the incremental updating refill
2975 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
2977 } else if (view_is_displayed(view)) {
2982 /* If the view is backgrounded the above calls to report()
2983 * won't redraw the view title. */
2985 update_view_title(view);
2989 open_external_viewer(const char *argv[], const char *dir)
2991 def_prog_mode(); /* save current tty modes */
2992 endwin(); /* restore original tty modes */
2993 run_io_fg(argv, dir);
2994 fprintf(stderr, "Press Enter to continue");
2997 redraw_display(TRUE);
3001 open_mergetool(const char *file)
3003 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
3005 open_external_viewer(mergetool_argv, opt_cdup);
3009 open_editor(bool from_root, const char *file)
3011 const char *editor_argv[] = { "vi", file, NULL };
3014 editor = getenv("GIT_EDITOR");
3015 if (!editor && *opt_editor)
3016 editor = opt_editor;
3018 editor = getenv("VISUAL");
3020 editor = getenv("EDITOR");
3024 editor_argv[0] = editor;
3025 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3029 open_run_request(enum request request)
3031 struct run_request *req = get_run_request(request);
3032 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3035 report("Unknown run request");
3039 if (format_argv(argv, req->argv, FORMAT_ALL))
3040 open_external_viewer(argv, NULL);
3045 * User request switch noodle
3049 view_driver(struct view *view, enum request request)
3053 if (request == REQ_NONE) {
3058 if (request > REQ_NONE) {
3059 open_run_request(request);
3060 /* FIXME: When all views can refresh always do this. */
3061 if (view == VIEW(REQ_VIEW_STATUS) ||
3062 view == VIEW(REQ_VIEW_MAIN) ||
3063 view == VIEW(REQ_VIEW_LOG) ||
3064 view == VIEW(REQ_VIEW_STAGE))
3065 request = REQ_REFRESH;
3070 if (view && view->lines) {
3071 request = view->ops->request(view, request, &view->line[view->lineno]);
3072 if (request == REQ_NONE)
3079 case REQ_MOVE_PAGE_UP:
3080 case REQ_MOVE_PAGE_DOWN:
3081 case REQ_MOVE_FIRST_LINE:
3082 case REQ_MOVE_LAST_LINE:
3083 move_view(view, request);
3086 case REQ_SCROLL_LINE_DOWN:
3087 case REQ_SCROLL_LINE_UP:
3088 case REQ_SCROLL_PAGE_DOWN:
3089 case REQ_SCROLL_PAGE_UP:
3090 scroll_view(view, request);
3093 case REQ_VIEW_BLAME:
3095 report("No file chosen, press %s to open tree view",
3096 get_key(REQ_VIEW_TREE));
3099 open_view(view, request, OPEN_DEFAULT);
3104 report("No file chosen, press %s to open tree view",
3105 get_key(REQ_VIEW_TREE));
3108 open_view(view, request, OPEN_DEFAULT);
3111 case REQ_VIEW_PAGER:
3112 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3113 report("No pager content, press %s to run command from prompt",
3114 get_key(REQ_PROMPT));
3117 open_view(view, request, OPEN_DEFAULT);
3120 case REQ_VIEW_STAGE:
3121 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3122 report("No stage content, press %s to open the status view and choose file",
3123 get_key(REQ_VIEW_STATUS));
3126 open_view(view, request, OPEN_DEFAULT);
3129 case REQ_VIEW_STATUS:
3130 if (opt_is_inside_work_tree == FALSE) {
3131 report("The status view requires a working tree");
3134 open_view(view, request, OPEN_DEFAULT);
3142 open_view(view, request, OPEN_DEFAULT);
3147 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3149 if ((view == VIEW(REQ_VIEW_DIFF) &&
3150 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3151 (view == VIEW(REQ_VIEW_DIFF) &&
3152 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3153 (view == VIEW(REQ_VIEW_STAGE) &&
3154 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3155 (view == VIEW(REQ_VIEW_BLOB) &&
3156 view->parent == VIEW(REQ_VIEW_TREE))) {
3159 view = view->parent;
3160 line = view->lineno;
3161 move_view(view, request);
3162 if (view_is_displayed(view))
3163 update_view_title(view);
3164 if (line != view->lineno)
3165 view->ops->request(view, REQ_ENTER,
3166 &view->line[view->lineno]);
3169 move_view(view, request);
3175 int nviews = displayed_views();
3176 int next_view = (current_view + 1) % nviews;
3178 if (next_view == current_view) {
3179 report("Only one view is displayed");
3183 current_view = next_view;
3184 /* Blur out the title of the previous view. */
3185 update_view_title(view);
3190 report("Refreshing is not yet supported for the %s view", view->name);
3194 if (displayed_views() == 2)
3195 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3198 case REQ_TOGGLE_LINENO:
3199 toggle_view_option(&opt_line_number, "line numbers");
3202 case REQ_TOGGLE_DATE:
3203 toggle_view_option(&opt_date, "date display");
3206 case REQ_TOGGLE_AUTHOR:
3207 toggle_view_option(&opt_author, "author display");
3210 case REQ_TOGGLE_REV_GRAPH:
3211 toggle_view_option(&opt_rev_graph, "revision graph display");
3214 case REQ_TOGGLE_REFS:
3215 toggle_view_option(&opt_show_refs, "reference display");
3219 case REQ_SEARCH_BACK:
3220 search_view(view, request);
3225 find_next(view, request);
3228 case REQ_STOP_LOADING:
3229 for (i = 0; i < ARRAY_SIZE(views); i++) {
3232 report("Stopped loading the %s view", view->name),
3233 end_update(view, TRUE);
3237 case REQ_SHOW_VERSION:
3238 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3241 case REQ_SCREEN_REDRAW:
3242 redraw_display(TRUE);
3246 report("Nothing to edit");
3250 report("Nothing to enter");
3253 case REQ_VIEW_CLOSE:
3254 /* XXX: Mark closed views by letting view->parent point to the
3255 * view itself. Parents to closed view should never be
3258 view->parent->parent != view->parent) {
3259 memset(display, 0, sizeof(display));
3261 display[current_view] = view->parent;
3262 view->parent = view;
3264 redraw_display(FALSE);
3273 report("Unknown key, press 'h' for help");
3282 * View backend utilities
3285 /* Parse author lines where the name may be empty:
3286 * author <email@address.tld> 1138474660 +0100
3289 parse_author_line(char *ident, char *author, size_t authorsize, struct tm *tm)
3291 char *nameend = strchr(ident, '<');
3292 char *emailend = strchr(ident, '>');
3294 if (nameend && emailend)
3295 *nameend = *emailend = 0;
3296 ident = chomp_string(ident);
3299 ident = chomp_string(nameend + 1);
3304 string_ncopy_do(author, authorsize, ident, strlen(ident));
3306 /* Parse epoch and timezone */
3307 if (emailend && emailend[1] == ' ') {
3308 char *secs = emailend + 2;
3309 char *zone = strchr(secs, ' ');
3310 time_t time = (time_t) atol(secs);
3312 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
3316 tz = ('0' - zone[1]) * 60 * 60 * 10;
3317 tz += ('0' - zone[2]) * 60 * 60;
3318 tz += ('0' - zone[3]) * 60;
3319 tz += ('0' - zone[4]) * 60;
3327 gmtime_r(&time, tm);
3331 static enum input_status
3332 select_commit_parent_handler(void *data, char *buf, int c)
3334 size_t parents = *(size_t *) data;
3341 parent = atoi(buf) * 10;
3344 if (parent > parents)
3350 select_commit_parent(const char *id, char rev[SIZEOF_REV])
3352 char buf[SIZEOF_STR * 4];
3353 const char *revlist_argv[] = {
3354 "git", "rev-list", "-1", "--parents", id, NULL
3358 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3359 !*chomp_string(buf) ||
3360 (parents = (strlen(buf) / 40) - 1) < 0) {
3361 report("Failed to get parent information");
3364 } else if (parents == 0) {
3365 report("The selected commit has no parents");
3370 char prompt[SIZEOF_STR];
3373 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3375 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3378 parents = atoi(result);
3381 string_copy_rev(rev, &buf[41 * parents]);
3390 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3392 char *text = line->data;
3394 if (opt_line_number && draw_lineno(view, lineno))
3397 draw_text(view, line->type, text, TRUE);
3402 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3404 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3405 char refbuf[SIZEOF_STR];
3408 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3409 ref = chomp_string(refbuf);
3414 /* This is the only fatal call, since it can "corrupt" the buffer. */
3415 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3422 add_pager_refs(struct view *view, struct line *line)
3424 char buf[SIZEOF_STR];
3425 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3427 size_t bufpos = 0, refpos = 0;
3428 const char *sep = "Refs: ";
3429 bool is_tag = FALSE;
3431 assert(line->type == LINE_COMMIT);
3433 refs = get_refs(commit_id);
3435 if (view == VIEW(REQ_VIEW_DIFF))
3436 goto try_add_describe_ref;
3441 struct ref *ref = refs[refpos];
3442 const char *fmt = ref->tag ? "%s[%s]" :
3443 ref->remote ? "%s<%s>" : "%s%s";
3445 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3450 } while (refs[refpos++]->next);
3452 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3453 try_add_describe_ref:
3454 /* Add <tag>-g<commit_id> "fake" reference. */
3455 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3462 add_line_text(view, buf, LINE_PP_REFS);
3466 pager_read(struct view *view, char *data)
3473 line = add_line_text(view, data, get_line_type(data));
3477 if (line->type == LINE_COMMIT &&
3478 (view == VIEW(REQ_VIEW_DIFF) ||
3479 view == VIEW(REQ_VIEW_LOG)))
3480 add_pager_refs(view, line);
3486 pager_request(struct view *view, enum request request, struct line *line)
3490 if (request != REQ_ENTER)
3493 if (line->type == LINE_COMMIT &&
3494 (view == VIEW(REQ_VIEW_LOG) ||
3495 view == VIEW(REQ_VIEW_PAGER))) {
3496 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3500 /* Always scroll the view even if it was split. That way
3501 * you can use Enter to scroll through the log view and
3502 * split open each commit diff. */
3503 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3505 /* FIXME: A minor workaround. Scrolling the view will call report("")
3506 * but if we are scrolling a non-current view this won't properly
3507 * update the view title. */
3509 update_view_title(view);
3515 pager_grep(struct view *view, struct line *line)
3518 char *text = line->data;
3523 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3530 pager_select(struct view *view, struct line *line)
3532 if (line->type == LINE_COMMIT) {
3533 char *text = (char *)line->data + STRING_SIZE("commit ");
3535 if (view != VIEW(REQ_VIEW_PAGER))
3536 string_copy_rev(view->ref, text);
3537 string_copy_rev(ref_commit, text);
3541 static struct view_ops pager_ops = {
3552 static const char *log_argv[SIZEOF_ARG] = {
3553 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3557 log_request(struct view *view, enum request request, struct line *line)
3562 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3565 return pager_request(view, request, line);
3569 static struct view_ops log_ops = {
3580 static const char *diff_argv[SIZEOF_ARG] = {
3581 "git", "show", "--pretty=fuller", "--no-color", "--root",
3582 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3585 static struct view_ops diff_ops = {
3601 help_open(struct view *view)
3603 char buf[SIZEOF_STR];
3607 if (view->lines > 0)
3610 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3612 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3615 if (req_info[i].request == REQ_NONE)
3618 if (!req_info[i].request) {
3619 add_line_text(view, "", LINE_DEFAULT);
3620 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3624 key = get_key(req_info[i].request);
3626 key = "(no key defined)";
3628 for (bufpos = 0; bufpos <= req_info[i].namelen; bufpos++) {
3629 buf[bufpos] = tolower(req_info[i].name[bufpos]);
3630 if (buf[bufpos] == '_')
3634 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s",
3635 key, buf, req_info[i].help);
3639 add_line_text(view, "", LINE_DEFAULT);
3640 add_line_text(view, "External commands:", LINE_DEFAULT);
3643 for (i = 0; i < run_requests; i++) {
3644 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3651 key = get_key_name(req->key);
3653 key = "(no key defined)";
3655 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3656 if (!string_format_from(buf, &bufpos, "%s%s",
3657 argc ? " " : "", req->argv[argc]))
3660 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3661 keymap_table[req->keymap].name, key, buf);
3667 static struct view_ops help_ops = {
3683 struct tree_stack_entry {
3684 struct tree_stack_entry *prev; /* Entry below this in the stack */
3685 unsigned long lineno; /* Line number to restore */
3686 char *name; /* Position of name in opt_path */
3689 /* The top of the path stack. */
3690 static struct tree_stack_entry *tree_stack = NULL;
3691 unsigned long tree_lineno = 0;
3694 pop_tree_stack_entry(void)
3696 struct tree_stack_entry *entry = tree_stack;
3698 tree_lineno = entry->lineno;
3700 tree_stack = entry->prev;
3705 push_tree_stack_entry(const char *name, unsigned long lineno)
3707 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3708 size_t pathlen = strlen(opt_path);
3713 entry->prev = tree_stack;
3714 entry->name = opt_path + pathlen;
3717 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3718 pop_tree_stack_entry();
3722 /* Move the current line to the first tree entry. */
3724 entry->lineno = lineno;
3727 /* Parse output from git-ls-tree(1):
3729 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3730 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3731 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3732 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3735 #define SIZEOF_TREE_ATTR \
3736 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3738 #define SIZEOF_TREE_MODE \
3739 STRING_SIZE("100644 ")
3741 #define TREE_ID_OFFSET \
3742 STRING_SIZE("100644 blob ")
3745 char id[SIZEOF_REV];
3747 struct tm time; /* Date from the author ident. */
3748 char author[75]; /* Author of the commit. */
3753 tree_path(struct line *line)
3755 return ((struct tree_entry *) line->data)->name;
3760 tree_compare_entry(struct line *line1, struct line *line2)
3762 if (line1->type != line2->type)
3763 return line1->type == LINE_TREE_DIR ? -1 : 1;
3764 return strcmp(tree_path(line1), tree_path(line2));
3767 static struct line *
3768 tree_entry(struct view *view, enum line_type type, const char *path,
3769 const char *mode, const char *id)
3771 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3772 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3774 if (!entry || !line) {
3779 strncpy(entry->name, path, strlen(path));
3781 entry->mode = strtoul(mode, NULL, 8);
3783 string_copy_rev(entry->id, id);
3789 tree_read_date(struct view *view, char *text, bool *read_date)
3791 static char author_name[SIZEOF_STR];
3792 static struct tm author_time;
3794 if (!text && *read_date) {
3799 char *path = *opt_path ? opt_path : ".";
3800 /* Find next entry to process */
3801 const char *log_file[] = {
3802 "git", "log", "--no-color", "--pretty=raw",
3803 "--cc", "--raw", view->id, "--", path, NULL
3807 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3808 report("Failed to load tree data");
3812 done_io(view->pipe);
3817 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3818 parse_author_line(text + STRING_SIZE("author "),
3819 author_name, sizeof(author_name), &author_time);
3821 } else if (*text == ':') {
3823 size_t annotated = 1;
3826 pos = strchr(text, '\t');
3830 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3831 text += strlen(opt_prefix);
3832 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3833 text += strlen(opt_path);
3834 pos = strchr(text, '/');
3838 for (i = 1; i < view->lines; i++) {
3839 struct line *line = &view->line[i];
3840 struct tree_entry *entry = line->data;
3842 annotated += !!*entry->author;
3843 if (*entry->author || strcmp(entry->name, text))
3846 string_copy(entry->author, author_name);
3847 memcpy(&entry->time, &author_time, sizeof(entry->time));
3852 if (annotated == view->lines)
3853 kill_io(view->pipe);
3859 tree_read(struct view *view, char *text)
3861 static bool read_date = FALSE;
3862 struct tree_entry *data;
3863 struct line *entry, *line;
3864 enum line_type type;
3865 size_t textlen = text ? strlen(text) : 0;
3866 char *path = text + SIZEOF_TREE_ATTR;
3868 if (read_date || !text)
3869 return tree_read_date(view, text, &read_date);
3871 if (textlen <= SIZEOF_TREE_ATTR)
3873 if (view->lines == 0 &&
3874 !tree_entry(view, LINE_TREE_PARENT, opt_path, NULL, NULL))
3877 /* Strip the path part ... */
3879 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3880 size_t striplen = strlen(opt_path);
3882 if (pathlen > striplen)
3883 memmove(path, path + striplen,
3884 pathlen - striplen + 1);
3886 /* Insert "link" to parent directory. */
3887 if (view->lines == 1 &&
3888 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3892 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3893 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3898 /* Skip "Directory ..." and ".." line. */
3899 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3900 if (tree_compare_entry(line, entry) <= 0)
3903 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3907 for (; line <= entry; line++)
3908 line->dirty = line->cleareol = 1;
3912 if (tree_lineno > view->lineno) {
3913 view->lineno = tree_lineno;
3921 tree_draw(struct view *view, struct line *line, unsigned int lineno)
3923 struct tree_entry *entry = line->data;
3925 if (line->type == LINE_TREE_PARENT) {
3926 if (draw_text(view, line->type, "Directory path /", TRUE))
3929 char mode[11] = "-r--r--r--";
3931 if (S_ISDIR(entry->mode)) {
3932 mode[3] = mode[6] = mode[9] = 'x';
3935 if (S_ISLNK(entry->mode))
3937 if (entry->mode & S_IWUSR)
3939 if (entry->mode & S_IXUSR)
3941 if (entry->mode & S_IXGRP)
3943 if (entry->mode & S_IXOTH)
3945 if (draw_field(view, LINE_TREE_MODE, mode, 11, TRUE))
3948 if (opt_author && draw_author(view, entry->author))
3951 if (opt_date && draw_date(view, *entry->author ? &entry->time : NULL))
3954 if (draw_text(view, line->type, entry->name, TRUE))
3962 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
3963 int fd = mkstemp(file);
3966 report("Failed to create temporary file");
3967 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
3968 report("Failed to save blob data to file");
3970 open_editor(FALSE, file);
3976 tree_request(struct view *view, enum request request, struct line *line)
3978 enum open_flags flags;
3981 case REQ_VIEW_BLAME:
3982 if (line->type != LINE_TREE_FILE) {
3983 report("Blame only supported for files");
3987 string_copy(opt_ref, view->vid);
3991 if (line->type != LINE_TREE_FILE) {
3992 report("Edit only supported for files");
3993 } else if (!is_head_commit(view->vid)) {
3996 open_editor(TRUE, opt_file);
4002 /* quit view if at top of tree */
4003 return REQ_VIEW_CLOSE;
4006 line = &view->line[1];
4016 /* Cleanup the stack if the tree view is at a different tree. */
4017 while (!*opt_path && tree_stack)
4018 pop_tree_stack_entry();
4020 switch (line->type) {
4022 /* Depending on whether it is a subdir or parent (updir?) link
4023 * mangle the path buffer. */
4024 if (line == &view->line[1] && *opt_path) {
4025 pop_tree_stack_entry();
4028 const char *basename = tree_path(line);
4030 push_tree_stack_entry(basename, view->lineno);
4033 /* Trees and subtrees share the same ID, so they are not not
4034 * unique like blobs. */
4035 flags = OPEN_RELOAD;
4036 request = REQ_VIEW_TREE;
4039 case LINE_TREE_FILE:
4040 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4041 request = REQ_VIEW_BLOB;
4048 open_view(view, request, flags);
4049 if (request == REQ_VIEW_TREE)
4050 view->lineno = tree_lineno;
4056 tree_select(struct view *view, struct line *line)
4058 struct tree_entry *entry = line->data;
4060 if (line->type == LINE_TREE_FILE) {
4061 string_copy_rev(ref_blob, entry->id);
4062 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4064 } else if (line->type != LINE_TREE_DIR) {
4068 string_copy_rev(view->ref, entry->id);
4071 static const char *tree_argv[SIZEOF_ARG] = {
4072 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4075 static struct view_ops tree_ops = {
4087 blob_read(struct view *view, char *line)
4091 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4095 blob_request(struct view *view, enum request request, struct line *line)
4102 return pager_request(view, request, line);
4106 static const char *blob_argv[SIZEOF_ARG] = {
4107 "git", "cat-file", "blob", "%(blob)", NULL
4110 static struct view_ops blob_ops = {
4124 * Loading the blame view is a two phase job:
4126 * 1. File content is read either using opt_file from the
4127 * filesystem or using git-cat-file.
4128 * 2. Then blame information is incrementally added by
4129 * reading output from git-blame.
4132 static const char *blame_head_argv[] = {
4133 "git", "blame", "--incremental", "--", "%(file)", NULL
4136 static const char *blame_ref_argv[] = {
4137 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4140 static const char *blame_cat_file_argv[] = {
4141 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4144 struct blame_commit {
4145 char id[SIZEOF_REV]; /* SHA1 ID. */
4146 char title[128]; /* First line of the commit message. */
4147 char author[75]; /* Author of the commit. */
4148 struct tm time; /* Date from the author ident. */
4149 char filename[128]; /* Name of file. */
4150 bool has_previous; /* Was a "previous" line detected. */
4154 struct blame_commit *commit;
4159 blame_open(struct view *view)
4161 if (*opt_ref || !io_open(&view->io, opt_file)) {
4162 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4166 setup_update(view, opt_file);
4167 string_format(view->ref, "%s ...", opt_file);
4172 static struct blame_commit *
4173 get_blame_commit(struct view *view, const char *id)
4177 for (i = 0; i < view->lines; i++) {
4178 struct blame *blame = view->line[i].data;
4183 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4184 return blame->commit;
4188 struct blame_commit *commit = calloc(1, sizeof(*commit));
4191 string_ncopy(commit->id, id, SIZEOF_REV);
4197 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4199 const char *pos = *posref;
4202 pos = strchr(pos + 1, ' ');
4203 if (!pos || !isdigit(pos[1]))
4205 *number = atoi(pos + 1);
4206 if (*number < min || *number > max)
4213 static struct blame_commit *
4214 parse_blame_commit(struct view *view, const char *text, int *blamed)
4216 struct blame_commit *commit;
4217 struct blame *blame;
4218 const char *pos = text + SIZEOF_REV - 1;
4222 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
4225 if (!parse_number(&pos, &lineno, 1, view->lines) ||
4226 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4229 commit = get_blame_commit(view, text);
4235 struct line *line = &view->line[lineno + group - 1];
4238 blame->commit = commit;
4246 blame_read_file(struct view *view, const char *line, bool *read_file)
4249 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4252 if (view->lines == 0 && !view->parent)
4253 die("No blame exist for %s", view->vid);
4255 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4256 report("Failed to load blame data");
4260 done_io(view->pipe);
4266 size_t linelen = strlen(line);
4267 struct blame *blame = malloc(sizeof(*blame) + linelen);
4269 blame->commit = NULL;
4270 strncpy(blame->text, line, linelen);
4271 blame->text[linelen] = 0;
4272 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4277 match_blame_header(const char *name, char **line)
4279 size_t namelen = strlen(name);
4280 bool matched = !strncmp(name, *line, namelen);
4289 blame_read(struct view *view, char *line)
4291 static struct blame_commit *commit = NULL;
4292 static int blamed = 0;
4293 static time_t author_time;
4294 static bool read_file = TRUE;
4297 return blame_read_file(view, line, &read_file);
4304 string_format(view->ref, "%s", view->vid);
4305 if (view_is_displayed(view)) {
4306 update_view_title(view);
4307 redraw_view_from(view, 0);
4313 commit = parse_blame_commit(view, line, &blamed);
4314 string_format(view->ref, "%s %2d%%", view->vid,
4315 view->lines ? blamed * 100 / view->lines : 0);
4317 } else if (match_blame_header("author ", &line)) {
4318 string_ncopy(commit->author, line, strlen(line));
4320 } else if (match_blame_header("author-time ", &line)) {
4321 author_time = (time_t) atol(line);
4323 } else if (match_blame_header("author-tz ", &line)) {
4326 tz = ('0' - line[1]) * 60 * 60 * 10;
4327 tz += ('0' - line[2]) * 60 * 60;
4328 tz += ('0' - line[3]) * 60;
4329 tz += ('0' - line[4]) * 60;
4335 gmtime_r(&author_time, &commit->time);
4337 } else if (match_blame_header("summary ", &line)) {
4338 string_ncopy(commit->title, line, strlen(line));
4340 } else if (match_blame_header("previous ", &line)) {
4341 commit->has_previous = TRUE;
4343 } else if (match_blame_header("filename ", &line)) {
4344 string_ncopy(commit->filename, line, strlen(line));
4352 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4354 struct blame *blame = line->data;
4355 struct tm *time = NULL;
4356 const char *id = NULL, *author = NULL;
4358 if (blame->commit && *blame->commit->filename) {
4359 id = blame->commit->id;
4360 author = blame->commit->author;
4361 time = &blame->commit->time;
4364 if (opt_date && draw_date(view, time))
4367 if (opt_author && draw_author(view, author))
4370 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4373 if (draw_lineno(view, lineno))
4376 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4381 check_blame_commit(struct blame *blame)
4384 report("Commit data not loaded yet");
4385 else if (!strcmp(blame->commit->id, NULL_ID))
4386 report("No commit exist for the selected line");
4393 blame_request(struct view *view, enum request request, struct line *line)
4395 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4396 struct blame *blame = line->data;
4399 case REQ_VIEW_BLAME:
4400 if (check_blame_commit(blame)) {
4401 string_copy(opt_ref, blame->commit->id);
4402 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4407 if (check_blame_commit(blame) &&
4408 select_commit_parent(blame->commit->id, opt_ref))
4409 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4413 if (!blame->commit) {
4414 report("No commit loaded yet");
4418 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4419 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4422 if (!strcmp(blame->commit->id, NULL_ID)) {
4423 struct view *diff = VIEW(REQ_VIEW_DIFF);
4424 const char *diff_index_argv[] = {
4425 "git", "diff-index", "--root", "--patch-with-stat",
4426 "-C", "-M", "HEAD", "--", view->vid, NULL
4429 if (!blame->commit->has_previous) {
4430 diff_index_argv[1] = "diff";
4431 diff_index_argv[2] = "--no-color";
4432 diff_index_argv[6] = "--";
4433 diff_index_argv[7] = "/dev/null";
4436 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4437 report("Failed to allocate diff command");
4440 flags |= OPEN_PREPARED;
4443 open_view(view, REQ_VIEW_DIFF, flags);
4444 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4445 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4456 blame_grep(struct view *view, struct line *line)
4458 struct blame *blame = line->data;
4459 struct blame_commit *commit = blame->commit;
4462 #define MATCH(text, on) \
4463 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4466 char buf[DATE_COLS + 1];
4468 if (MATCH(commit->title, 1) ||
4469 MATCH(commit->author, opt_author) ||
4470 MATCH(commit->id, opt_date))
4473 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4478 return MATCH(blame->text, 1);
4484 blame_select(struct view *view, struct line *line)
4486 struct blame *blame = line->data;
4487 struct blame_commit *commit = blame->commit;
4492 if (!strcmp(commit->id, NULL_ID))
4493 string_ncopy(ref_commit, "HEAD", 4);
4495 string_copy_rev(ref_commit, commit->id);
4498 static struct view_ops blame_ops = {
4517 char rev[SIZEOF_REV];
4518 char name[SIZEOF_STR];
4522 char rev[SIZEOF_REV];
4523 char name[SIZEOF_STR];
4527 static char status_onbranch[SIZEOF_STR];
4528 static struct status stage_status;
4529 static enum line_type stage_line_type;
4530 static size_t stage_chunks;
4531 static int *stage_chunk;
4533 /* This should work even for the "On branch" line. */
4535 status_has_none(struct view *view, struct line *line)
4537 return line < view->line + view->lines && !line[1].data;
4540 /* Get fields from the diff line:
4541 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4544 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4546 const char *old_mode = buf + 1;
4547 const char *new_mode = buf + 8;
4548 const char *old_rev = buf + 15;
4549 const char *new_rev = buf + 56;
4550 const char *status = buf + 97;
4553 old_mode[-1] != ':' ||
4554 new_mode[-1] != ' ' ||
4555 old_rev[-1] != ' ' ||
4556 new_rev[-1] != ' ' ||
4560 file->status = *status;
4562 string_copy_rev(file->old.rev, old_rev);
4563 string_copy_rev(file->new.rev, new_rev);
4565 file->old.mode = strtoul(old_mode, NULL, 8);
4566 file->new.mode = strtoul(new_mode, NULL, 8);
4568 file->old.name[0] = file->new.name[0] = 0;
4574 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4576 struct status *file = NULL;
4577 struct status *unmerged = NULL;
4581 if (!run_io(&io, argv, NULL, IO_RD))
4584 add_line_data(view, NULL, type);
4586 while ((buf = io_get(&io, 0, TRUE))) {
4588 file = calloc(1, sizeof(*file));
4589 if (!file || !add_line_data(view, file, type))
4593 /* Parse diff info part. */
4595 file->status = status;
4597 string_copy(file->old.rev, NULL_ID);
4599 } else if (!file->status) {
4600 if (!status_get_diff(file, buf, strlen(buf)))
4603 buf = io_get(&io, 0, TRUE);
4607 /* Collapse all 'M'odified entries that follow a
4608 * associated 'U'nmerged entry. */
4609 if (file->status == 'U') {
4612 } else if (unmerged) {
4613 int collapse = !strcmp(buf, unmerged->new.name);
4625 /* Grab the old name for rename/copy. */
4626 if (!*file->old.name &&
4627 (file->status == 'R' || file->status == 'C')) {
4628 string_ncopy(file->old.name, buf, strlen(buf));
4630 buf = io_get(&io, 0, TRUE);
4635 /* git-ls-files just delivers a NUL separated list of
4636 * file names similar to the second half of the
4637 * git-diff-* output. */
4638 string_ncopy(file->new.name, buf, strlen(buf));
4639 if (!*file->old.name)
4640 string_copy(file->old.name, file->new.name);
4644 if (io_error(&io)) {
4650 if (!view->line[view->lines - 1].data)
4651 add_line_data(view, NULL, LINE_STAT_NONE);
4657 /* Don't show unmerged entries in the staged section. */
4658 static const char *status_diff_index_argv[] = {
4659 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4660 "--cached", "-M", "HEAD", NULL
4663 static const char *status_diff_files_argv[] = {
4664 "git", "diff-files", "-z", NULL
4667 static const char *status_list_other_argv[] = {
4668 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4671 static const char *status_list_no_head_argv[] = {
4672 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4675 static const char *update_index_argv[] = {
4676 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4679 /* Restore the previous line number to stay in the context or select a
4680 * line with something that can be updated. */
4682 status_restore(struct view *view)
4684 if (view->p_lineno >= view->lines)
4685 view->p_lineno = view->lines - 1;
4686 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4688 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4691 /* If the above fails, always skip the "On branch" line. */
4692 if (view->p_lineno < view->lines)
4693 view->lineno = view->p_lineno;
4697 if (view->lineno < view->offset)
4698 view->offset = view->lineno;
4699 else if (view->offset + view->height <= view->lineno)
4700 view->offset = view->lineno - view->height + 1;
4702 view->p_restore = FALSE;
4705 /* First parse staged info using git-diff-index(1), then parse unstaged
4706 * info using git-diff-files(1), and finally untracked files using
4707 * git-ls-files(1). */
4709 status_open(struct view *view)
4713 add_line_data(view, NULL, LINE_STAT_HEAD);
4714 if (is_initial_commit())
4715 string_copy(status_onbranch, "Initial commit");
4716 else if (!*opt_head)
4717 string_copy(status_onbranch, "Not currently on any branch");
4718 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4721 run_io_bg(update_index_argv);
4723 if (is_initial_commit()) {
4724 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4726 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4730 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4731 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4734 /* Restore the exact position or use the specialized restore
4736 if (!view->p_restore)
4737 status_restore(view);
4742 status_draw(struct view *view, struct line *line, unsigned int lineno)
4744 struct status *status = line->data;
4745 enum line_type type;
4749 switch (line->type) {
4750 case LINE_STAT_STAGED:
4751 type = LINE_STAT_SECTION;
4752 text = "Changes to be committed:";
4755 case LINE_STAT_UNSTAGED:
4756 type = LINE_STAT_SECTION;
4757 text = "Changed but not updated:";
4760 case LINE_STAT_UNTRACKED:
4761 type = LINE_STAT_SECTION;
4762 text = "Untracked files:";
4765 case LINE_STAT_NONE:
4766 type = LINE_DEFAULT;
4767 text = " (no files)";
4770 case LINE_STAT_HEAD:
4771 type = LINE_STAT_HEAD;
4772 text = status_onbranch;
4779 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4781 buf[0] = status->status;
4782 if (draw_text(view, line->type, buf, TRUE))
4784 type = LINE_DEFAULT;
4785 text = status->new.name;
4788 draw_text(view, type, text, TRUE);
4793 status_enter(struct view *view, struct line *line)
4795 struct status *status = line->data;
4796 const char *oldpath = status ? status->old.name : NULL;
4797 /* Diffs for unmerged entries are empty when passing the new
4798 * path, so leave it empty. */
4799 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4801 enum open_flags split;
4802 struct view *stage = VIEW(REQ_VIEW_STAGE);
4804 if (line->type == LINE_STAT_NONE ||
4805 (!status && line[1].type == LINE_STAT_NONE)) {
4806 report("No file to diff");
4810 switch (line->type) {
4811 case LINE_STAT_STAGED:
4812 if (is_initial_commit()) {
4813 const char *no_head_diff_argv[] = {
4814 "git", "diff", "--no-color", "--patch-with-stat",
4815 "--", "/dev/null", newpath, NULL
4818 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4821 const char *index_show_argv[] = {
4822 "git", "diff-index", "--root", "--patch-with-stat",
4823 "-C", "-M", "--cached", "HEAD", "--",
4824 oldpath, newpath, NULL
4827 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4832 info = "Staged changes to %s";
4834 info = "Staged changes";
4837 case LINE_STAT_UNSTAGED:
4839 const char *files_show_argv[] = {
4840 "git", "diff-files", "--root", "--patch-with-stat",
4841 "-C", "-M", "--", oldpath, newpath, NULL
4844 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4847 info = "Unstaged changes to %s";
4849 info = "Unstaged changes";
4852 case LINE_STAT_UNTRACKED:
4854 report("No file to show");
4858 if (!suffixcmp(status->new.name, -1, "/")) {
4859 report("Cannot display a directory");
4863 if (!prepare_update_file(stage, newpath))
4865 info = "Untracked file %s";
4868 case LINE_STAT_HEAD:
4872 die("line type %d not handled in switch", line->type);
4875 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4876 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
4877 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4879 stage_status = *status;
4881 memset(&stage_status, 0, sizeof(stage_status));
4884 stage_line_type = line->type;
4886 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4893 status_exists(struct status *status, enum line_type type)
4895 struct view *view = VIEW(REQ_VIEW_STATUS);
4896 unsigned long lineno;
4898 for (lineno = 0; lineno < view->lines; lineno++) {
4899 struct line *line = &view->line[lineno];
4900 struct status *pos = line->data;
4902 if (line->type != type)
4904 if (!pos && (!status || !status->status) && line[1].data) {
4905 select_view_line(view, lineno);
4908 if (pos && !strcmp(status->new.name, pos->new.name)) {
4909 select_view_line(view, lineno);
4919 status_update_prepare(struct io *io, enum line_type type)
4921 const char *staged_argv[] = {
4922 "git", "update-index", "-z", "--index-info", NULL
4924 const char *others_argv[] = {
4925 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4929 case LINE_STAT_STAGED:
4930 return run_io(io, staged_argv, opt_cdup, IO_WR);
4932 case LINE_STAT_UNSTAGED:
4933 return run_io(io, others_argv, opt_cdup, IO_WR);
4935 case LINE_STAT_UNTRACKED:
4936 return run_io(io, others_argv, NULL, IO_WR);
4939 die("line type %d not handled in switch", type);
4945 status_update_write(struct io *io, struct status *status, enum line_type type)
4947 char buf[SIZEOF_STR];
4951 case LINE_STAT_STAGED:
4952 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4955 status->old.name, 0))
4959 case LINE_STAT_UNSTAGED:
4960 case LINE_STAT_UNTRACKED:
4961 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4966 die("line type %d not handled in switch", type);
4969 return io_write(io, buf, bufsize);
4973 status_update_file(struct status *status, enum line_type type)
4978 if (!status_update_prepare(&io, type))
4981 result = status_update_write(&io, status, type);
4987 status_update_files(struct view *view, struct line *line)
4991 struct line *pos = view->line + view->lines;
4995 if (!status_update_prepare(&io, line->type))
4998 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5001 for (file = 0, done = 0; result && file < files; line++, file++) {
5002 int almost_done = file * 100 / files;
5004 if (almost_done > done) {
5006 string_format(view->ref, "updating file %u of %u (%d%% done)",
5008 update_view_title(view);
5010 result = status_update_write(&io, line->data, line->type);
5018 status_update(struct view *view)
5020 struct line *line = &view->line[view->lineno];
5022 assert(view->lines);
5025 /* This should work even for the "On branch" line. */
5026 if (line < view->line + view->lines && !line[1].data) {
5027 report("Nothing to update");
5031 if (!status_update_files(view, line + 1)) {
5032 report("Failed to update file status");
5036 } else if (!status_update_file(line->data, line->type)) {
5037 report("Failed to update file status");
5045 status_revert(struct status *status, enum line_type type, bool has_none)
5047 if (!status || type != LINE_STAT_UNSTAGED) {
5048 if (type == LINE_STAT_STAGED) {
5049 report("Cannot revert changes to staged files");
5050 } else if (type == LINE_STAT_UNTRACKED) {
5051 report("Cannot revert changes to untracked files");
5052 } else if (has_none) {
5053 report("Nothing to revert");
5055 report("Cannot revert changes to multiple files");
5060 const char *checkout_argv[] = {
5061 "git", "checkout", "--", status->old.name, NULL
5064 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5066 return run_io_fg(checkout_argv, opt_cdup);
5071 status_request(struct view *view, enum request request, struct line *line)
5073 struct status *status = line->data;
5076 case REQ_STATUS_UPDATE:
5077 if (!status_update(view))
5081 case REQ_STATUS_REVERT:
5082 if (!status_revert(status, line->type, status_has_none(view, line)))
5086 case REQ_STATUS_MERGE:
5087 if (!status || status->status != 'U') {
5088 report("Merging only possible for files with unmerged status ('U').");
5091 open_mergetool(status->new.name);
5097 if (status->status == 'D') {
5098 report("File has been deleted.");
5102 open_editor(status->status != '?', status->new.name);
5105 case REQ_VIEW_BLAME:
5107 string_copy(opt_file, status->new.name);
5113 /* After returning the status view has been split to
5114 * show the stage view. No further reloading is
5116 status_enter(view, line);
5120 /* Simply reload the view. */
5127 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5133 status_select(struct view *view, struct line *line)
5135 struct status *status = line->data;
5136 char file[SIZEOF_STR] = "all files";
5140 if (status && !string_format(file, "'%s'", status->new.name))
5143 if (!status && line[1].type == LINE_STAT_NONE)
5146 switch (line->type) {
5147 case LINE_STAT_STAGED:
5148 text = "Press %s to unstage %s for commit";
5151 case LINE_STAT_UNSTAGED:
5152 text = "Press %s to stage %s for commit";
5155 case LINE_STAT_UNTRACKED:
5156 text = "Press %s to stage %s for addition";
5159 case LINE_STAT_HEAD:
5160 case LINE_STAT_NONE:
5161 text = "Nothing to update";
5165 die("line type %d not handled in switch", line->type);
5168 if (status && status->status == 'U') {
5169 text = "Press %s to resolve conflict in %s";
5170 key = get_key(REQ_STATUS_MERGE);
5173 key = get_key(REQ_STATUS_UPDATE);
5176 string_format(view->ref, text, key, file);
5180 status_grep(struct view *view, struct line *line)
5182 struct status *status = line->data;
5183 enum { S_STATUS, S_NAME, S_END } state;
5190 for (state = S_STATUS; state < S_END; state++) {
5194 case S_NAME: text = status->new.name; break;
5196 buf[0] = status->status;
5204 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5211 static struct view_ops status_ops = {
5224 stage_diff_write(struct io *io, struct line *line, struct line *end)
5226 while (line < end) {
5227 if (!io_write(io, line->data, strlen(line->data)) ||
5228 !io_write(io, "\n", 1))
5231 if (line->type == LINE_DIFF_CHUNK ||
5232 line->type == LINE_DIFF_HEADER)
5239 static struct line *
5240 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5242 for (; view->line < line; line--)
5243 if (line->type == type)
5250 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5252 const char *apply_argv[SIZEOF_ARG] = {
5253 "git", "apply", "--whitespace=nowarn", NULL
5255 struct line *diff_hdr;
5259 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5264 apply_argv[argc++] = "--cached";
5265 if (revert || stage_line_type == LINE_STAT_STAGED)
5266 apply_argv[argc++] = "-R";
5267 apply_argv[argc++] = "-";
5268 apply_argv[argc++] = NULL;
5269 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5272 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5273 !stage_diff_write(&io, chunk, view->line + view->lines))
5277 run_io_bg(update_index_argv);
5279 return chunk ? TRUE : FALSE;
5283 stage_update(struct view *view, struct line *line)
5285 struct line *chunk = NULL;
5287 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5288 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5291 if (!stage_apply_chunk(view, chunk, FALSE)) {
5292 report("Failed to apply chunk");
5296 } else if (!stage_status.status) {
5297 view = VIEW(REQ_VIEW_STATUS);
5299 for (line = view->line; line < view->line + view->lines; line++)
5300 if (line->type == stage_line_type)
5303 if (!status_update_files(view, line + 1)) {
5304 report("Failed to update files");
5308 } else if (!status_update_file(&stage_status, stage_line_type)) {
5309 report("Failed to update file");
5317 stage_revert(struct view *view, struct line *line)
5319 struct line *chunk = NULL;
5321 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5322 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5325 if (!prompt_yesno("Are you sure you want to revert changes?"))
5328 if (!stage_apply_chunk(view, chunk, TRUE)) {
5329 report("Failed to revert chunk");
5335 return status_revert(stage_status.status ? &stage_status : NULL,
5336 stage_line_type, FALSE);
5342 stage_next(struct view *view, struct line *line)
5346 if (!stage_chunks) {
5347 static size_t alloc = 0;
5350 for (line = view->line; line < view->line + view->lines; line++) {
5351 if (line->type != LINE_DIFF_CHUNK)
5354 tmp = realloc_items(stage_chunk, &alloc,
5355 stage_chunks, sizeof(*tmp));
5357 report("Allocation failure");
5362 stage_chunk[stage_chunks++] = line - view->line;
5366 for (i = 0; i < stage_chunks; i++) {
5367 if (stage_chunk[i] > view->lineno) {
5368 do_scroll_view(view, stage_chunk[i] - view->lineno);
5369 report("Chunk %d of %d", i + 1, stage_chunks);
5374 report("No next chunk found");
5378 stage_request(struct view *view, enum request request, struct line *line)
5381 case REQ_STATUS_UPDATE:
5382 if (!stage_update(view, line))
5386 case REQ_STATUS_REVERT:
5387 if (!stage_revert(view, line))
5391 case REQ_STAGE_NEXT:
5392 if (stage_line_type == LINE_STAT_UNTRACKED) {
5393 report("File is untracked; press %s to add",
5394 get_key(REQ_STATUS_UPDATE));
5397 stage_next(view, line);
5401 if (!stage_status.new.name[0])
5403 if (stage_status.status == 'D') {
5404 report("File has been deleted.");
5408 open_editor(stage_status.status != '?', stage_status.new.name);
5412 /* Reload everything ... */
5415 case REQ_VIEW_BLAME:
5416 if (stage_status.new.name[0]) {
5417 string_copy(opt_file, stage_status.new.name);
5423 return pager_request(view, request, line);
5429 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5430 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5432 /* Check whether the staged entry still exists, and close the
5433 * stage view if it doesn't. */
5434 if (!status_exists(&stage_status, stage_line_type)) {
5435 status_restore(VIEW(REQ_VIEW_STATUS));
5436 return REQ_VIEW_CLOSE;
5439 if (stage_line_type == LINE_STAT_UNTRACKED) {
5440 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5441 report("Cannot display a directory");
5445 if (!prepare_update_file(view, stage_status.new.name)) {
5446 report("Failed to open file: %s", strerror(errno));
5450 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5455 static struct view_ops stage_ops = {
5472 char id[SIZEOF_REV]; /* SHA1 ID. */
5473 char title[128]; /* First line of the commit message. */
5474 char author[75]; /* Author of the commit. */
5475 struct tm time; /* Date from the author ident. */
5476 struct ref **refs; /* Repository references. */
5477 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5478 size_t graph_size; /* The width of the graph array. */
5479 bool has_parents; /* Rewritten --parents seen. */
5482 /* Size of rev graph with no "padding" columns */
5483 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5486 struct rev_graph *prev, *next, *parents;
5487 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5489 struct commit *commit;
5491 unsigned int boundary:1;
5494 /* Parents of the commit being visualized. */
5495 static struct rev_graph graph_parents[4];
5497 /* The current stack of revisions on the graph. */
5498 static struct rev_graph graph_stacks[4] = {
5499 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5500 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5501 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5502 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5506 graph_parent_is_merge(struct rev_graph *graph)
5508 return graph->parents->size > 1;
5512 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5514 struct commit *commit = graph->commit;
5516 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5517 commit->graph[commit->graph_size++] = symbol;
5521 clear_rev_graph(struct rev_graph *graph)
5523 graph->boundary = 0;
5524 graph->size = graph->pos = 0;
5525 graph->commit = NULL;
5526 memset(graph->parents, 0, sizeof(*graph->parents));
5530 done_rev_graph(struct rev_graph *graph)
5532 if (graph_parent_is_merge(graph) &&
5533 graph->pos < graph->size - 1 &&
5534 graph->next->size == graph->size + graph->parents->size - 1) {
5535 size_t i = graph->pos + graph->parents->size - 1;
5537 graph->commit->graph_size = i * 2;
5538 while (i < graph->next->size - 1) {
5539 append_to_rev_graph(graph, ' ');
5540 append_to_rev_graph(graph, '\\');
5545 clear_rev_graph(graph);
5549 push_rev_graph(struct rev_graph *graph, const char *parent)
5553 /* "Collapse" duplicate parents lines.
5555 * FIXME: This needs to also update update the drawn graph but
5556 * for now it just serves as a method for pruning graph lines. */
5557 for (i = 0; i < graph->size; i++)
5558 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5561 if (graph->size < SIZEOF_REVITEMS) {
5562 string_copy_rev(graph->rev[graph->size++], parent);
5567 get_rev_graph_symbol(struct rev_graph *graph)
5571 if (graph->boundary)
5572 symbol = REVGRAPH_BOUND;
5573 else if (graph->parents->size == 0)
5574 symbol = REVGRAPH_INIT;
5575 else if (graph_parent_is_merge(graph))
5576 symbol = REVGRAPH_MERGE;
5577 else if (graph->pos >= graph->size)
5578 symbol = REVGRAPH_BRANCH;
5580 symbol = REVGRAPH_COMMIT;
5586 draw_rev_graph(struct rev_graph *graph)
5589 chtype separator, line;
5591 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5592 static struct rev_filler fillers[] = {
5598 chtype symbol = get_rev_graph_symbol(graph);
5599 struct rev_filler *filler;
5602 if (opt_line_graphics)
5603 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5605 filler = &fillers[DEFAULT];
5607 for (i = 0; i < graph->pos; i++) {
5608 append_to_rev_graph(graph, filler->line);
5609 if (graph_parent_is_merge(graph->prev) &&
5610 graph->prev->pos == i)
5611 filler = &fillers[RSHARP];
5613 append_to_rev_graph(graph, filler->separator);
5616 /* Place the symbol for this revision. */
5617 append_to_rev_graph(graph, symbol);
5619 if (graph->prev->size > graph->size)
5620 filler = &fillers[RDIAG];
5622 filler = &fillers[DEFAULT];
5626 for (; i < graph->size; i++) {
5627 append_to_rev_graph(graph, filler->separator);
5628 append_to_rev_graph(graph, filler->line);
5629 if (graph_parent_is_merge(graph->prev) &&
5630 i < graph->prev->pos + graph->parents->size)
5631 filler = &fillers[RSHARP];
5632 if (graph->prev->size > graph->size)
5633 filler = &fillers[LDIAG];
5636 if (graph->prev->size > graph->size) {
5637 append_to_rev_graph(graph, filler->separator);
5638 if (filler->line != ' ')
5639 append_to_rev_graph(graph, filler->line);
5643 /* Prepare the next rev graph */
5645 prepare_rev_graph(struct rev_graph *graph)
5649 /* First, traverse all lines of revisions up to the active one. */
5650 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5651 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5654 push_rev_graph(graph->next, graph->rev[graph->pos]);
5657 /* Interleave the new revision parent(s). */
5658 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5659 push_rev_graph(graph->next, graph->parents->rev[i]);
5661 /* Lastly, put any remaining revisions. */
5662 for (i = graph->pos + 1; i < graph->size; i++)
5663 push_rev_graph(graph->next, graph->rev[i]);
5667 update_rev_graph(struct view *view, struct rev_graph *graph)
5669 /* If this is the finalizing update ... */
5671 prepare_rev_graph(graph);
5673 /* Graph visualization needs a one rev look-ahead,
5674 * so the first update doesn't visualize anything. */
5675 if (!graph->prev->commit)
5678 if (view->lines > 2)
5679 view->line[view->lines - 3].dirty = 1;
5680 if (view->lines > 1)
5681 view->line[view->lines - 2].dirty = 1;
5682 draw_rev_graph(graph->prev);
5683 done_rev_graph(graph->prev->prev);
5691 static const char *main_argv[SIZEOF_ARG] = {
5692 "git", "log", "--no-color", "--pretty=raw", "--parents",
5693 "--topo-order", "%(head)", NULL
5697 main_draw(struct view *view, struct line *line, unsigned int lineno)
5699 struct commit *commit = line->data;
5701 if (!*commit->author)
5704 if (opt_date && draw_date(view, &commit->time))
5707 if (opt_author && draw_author(view, commit->author))
5710 if (opt_rev_graph && commit->graph_size &&
5711 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5714 if (opt_show_refs && commit->refs) {
5718 enum line_type type;
5720 if (commit->refs[i]->head)
5721 type = LINE_MAIN_HEAD;
5722 else if (commit->refs[i]->ltag)
5723 type = LINE_MAIN_LOCAL_TAG;
5724 else if (commit->refs[i]->tag)
5725 type = LINE_MAIN_TAG;
5726 else if (commit->refs[i]->tracked)
5727 type = LINE_MAIN_TRACKED;
5728 else if (commit->refs[i]->remote)
5729 type = LINE_MAIN_REMOTE;
5731 type = LINE_MAIN_REF;
5733 if (draw_text(view, type, "[", TRUE) ||
5734 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5735 draw_text(view, type, "]", TRUE))
5738 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5740 } while (commit->refs[i++]->next);
5743 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5747 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5749 main_read(struct view *view, char *line)
5751 static struct rev_graph *graph = graph_stacks;
5752 enum line_type type;
5753 struct commit *commit;
5758 if (!view->lines && !view->parent)
5759 die("No revisions match the given arguments.");
5760 if (view->lines > 0) {
5761 commit = view->line[view->lines - 1].data;
5762 view->line[view->lines - 1].dirty = 1;
5763 if (!*commit->author) {
5766 graph->commit = NULL;
5769 update_rev_graph(view, graph);
5771 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5772 clear_rev_graph(&graph_stacks[i]);
5776 type = get_line_type(line);
5777 if (type == LINE_COMMIT) {
5778 commit = calloc(1, sizeof(struct commit));
5782 line += STRING_SIZE("commit ");
5784 graph->boundary = 1;
5788 string_copy_rev(commit->id, line);
5789 commit->refs = get_refs(commit->id);
5790 graph->commit = commit;
5791 add_line_data(view, commit, LINE_MAIN_COMMIT);
5793 while ((line = strchr(line, ' '))) {
5795 push_rev_graph(graph->parents, line);
5796 commit->has_parents = TRUE;
5803 commit = view->line[view->lines - 1].data;
5807 if (commit->has_parents)
5809 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5813 parse_author_line(line + STRING_SIZE("author "),
5814 commit->author, sizeof(commit->author),
5816 update_rev_graph(view, graph);
5817 graph = graph->next;
5821 /* Fill in the commit title if it has not already been set. */
5822 if (commit->title[0])
5825 /* Require titles to start with a non-space character at the
5826 * offset used by git log. */
5827 if (strncmp(line, " ", 4))
5830 /* Well, if the title starts with a whitespace character,
5831 * try to be forgiving. Otherwise we end up with no title. */
5832 while (isspace(*line))
5836 /* FIXME: More graceful handling of titles; append "..." to
5837 * shortened titles, etc. */
5839 string_ncopy(commit->title, line, strlen(line));
5840 view->line[view->lines - 1].dirty = 1;
5847 main_request(struct view *view, enum request request, struct line *line)
5849 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5853 open_view(view, REQ_VIEW_DIFF, flags);
5857 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5867 grep_refs(struct ref **refs, regex_t *regex)
5875 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5877 } while (refs[i++]->next);
5883 main_grep(struct view *view, struct line *line)
5885 struct commit *commit = line->data;
5886 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5887 char buf[DATE_COLS + 1];
5890 for (state = S_TITLE; state < S_END; state++) {
5894 case S_TITLE: text = commit->title; break;
5898 text = commit->author;
5903 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5910 if (grep_refs(commit->refs, view->regex) == TRUE)
5917 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5925 main_select(struct view *view, struct line *line)
5927 struct commit *commit = line->data;
5929 string_copy_rev(view->ref, commit->id);
5930 string_copy_rev(ref_commit, view->ref);
5933 static struct view_ops main_ops = {
5946 * Unicode / UTF-8 handling
5948 * NOTE: Much of the following code for dealing with unicode is derived from
5949 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5950 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5953 /* I've (over)annotated a lot of code snippets because I am not entirely
5954 * confident that the approach taken by this small UTF-8 interface is correct.
5958 unicode_width(unsigned long c)
5961 (c <= 0x115f /* Hangul Jamo */
5964 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5966 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5967 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5968 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5969 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5970 || (c >= 0xffe0 && c <= 0xffe6)
5971 || (c >= 0x20000 && c <= 0x2fffd)
5972 || (c >= 0x30000 && c <= 0x3fffd)))
5976 return opt_tab_size;
5981 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5982 * Illegal bytes are set one. */
5983 static const unsigned char utf8_bytes[256] = {
5984 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,
5985 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,
5986 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,
5987 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,
5988 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,
5989 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,
5990 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,
5991 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,
5994 /* Decode UTF-8 multi-byte representation into a unicode character. */
5995 static inline unsigned long
5996 utf8_to_unicode(const char *string, size_t length)
5998 unsigned long unicode;
6002 unicode = string[0];
6005 unicode = (string[0] & 0x1f) << 6;
6006 unicode += (string[1] & 0x3f);
6009 unicode = (string[0] & 0x0f) << 12;
6010 unicode += ((string[1] & 0x3f) << 6);
6011 unicode += (string[2] & 0x3f);
6014 unicode = (string[0] & 0x0f) << 18;
6015 unicode += ((string[1] & 0x3f) << 12);
6016 unicode += ((string[2] & 0x3f) << 6);
6017 unicode += (string[3] & 0x3f);
6020 unicode = (string[0] & 0x0f) << 24;
6021 unicode += ((string[1] & 0x3f) << 18);
6022 unicode += ((string[2] & 0x3f) << 12);
6023 unicode += ((string[3] & 0x3f) << 6);
6024 unicode += (string[4] & 0x3f);
6027 unicode = (string[0] & 0x01) << 30;
6028 unicode += ((string[1] & 0x3f) << 24);
6029 unicode += ((string[2] & 0x3f) << 18);
6030 unicode += ((string[3] & 0x3f) << 12);
6031 unicode += ((string[4] & 0x3f) << 6);
6032 unicode += (string[5] & 0x3f);
6035 die("Invalid unicode length");
6038 /* Invalid characters could return the special 0xfffd value but NUL
6039 * should be just as good. */
6040 return unicode > 0xffff ? 0 : unicode;
6043 /* Calculates how much of string can be shown within the given maximum width
6044 * and sets trimmed parameter to non-zero value if all of string could not be
6045 * shown. If the reserve flag is TRUE, it will reserve at least one
6046 * trailing character, which can be useful when drawing a delimiter.
6048 * Returns the number of bytes to output from string to satisfy max_width. */
6050 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
6052 const char *start = string;
6053 const char *end = strchr(string, '\0');
6054 unsigned char last_bytes = 0;
6055 size_t last_ucwidth = 0;
6060 while (string < end) {
6061 int c = *(unsigned char *) string;
6062 unsigned char bytes = utf8_bytes[c];
6064 unsigned long unicode;
6066 if (string + bytes > end)
6069 /* Change representation to figure out whether
6070 * it is a single- or double-width character. */
6072 unicode = utf8_to_unicode(string, bytes);
6073 /* FIXME: Graceful handling of invalid unicode character. */
6077 ucwidth = unicode_width(unicode);
6079 if (*width > max_width) {
6082 if (reserve && *width == max_width) {
6083 string -= last_bytes;
6084 *width -= last_ucwidth;
6091 last_ucwidth = ucwidth;
6094 return string - start;
6102 /* Whether or not the curses interface has been initialized. */
6103 static bool cursed = FALSE;
6105 /* Terminal hacks and workarounds. */
6106 static bool use_scroll_redrawwin;
6107 static bool use_scroll_status_wclear;
6109 /* The status window is used for polling keystrokes. */
6110 static WINDOW *status_win;
6112 /* Reading from the prompt? */
6113 static bool input_mode = FALSE;
6115 static bool status_empty = FALSE;
6117 /* Update status and title window. */
6119 report(const char *msg, ...)
6121 struct view *view = display[current_view];
6127 char buf[SIZEOF_STR];
6130 va_start(args, msg);
6131 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6132 buf[sizeof(buf) - 1] = 0;
6133 buf[sizeof(buf) - 2] = '.';
6134 buf[sizeof(buf) - 3] = '.';
6135 buf[sizeof(buf) - 4] = '.';
6141 if (!status_empty || *msg) {
6144 va_start(args, msg);
6146 wmove(status_win, 0, 0);
6147 if (view->has_scrolled && use_scroll_status_wclear)
6150 vwprintw(status_win, msg, args);
6151 status_empty = FALSE;
6153 status_empty = TRUE;
6155 wclrtoeol(status_win);
6156 wnoutrefresh(status_win);
6161 update_view_title(view);
6164 /* Controls when nodelay should be in effect when polling user input. */
6166 set_nonblocking_input(bool loading)
6168 static unsigned int loading_views;
6170 if ((loading == FALSE && loading_views-- == 1) ||
6171 (loading == TRUE && loading_views++ == 0))
6172 nodelay(status_win, loading);
6181 /* Initialize the curses library */
6182 if (isatty(STDIN_FILENO)) {
6183 cursed = !!initscr();
6186 /* Leave stdin and stdout alone when acting as a pager. */
6187 opt_tty = fopen("/dev/tty", "r+");
6189 die("Failed to open /dev/tty");
6190 cursed = !!newterm(NULL, opt_tty, opt_tty);
6194 die("Failed to initialize curses");
6196 nonl(); /* Tell curses not to do NL->CR/NL on output */
6197 cbreak(); /* Take input chars one at a time, no wait for \n */
6198 noecho(); /* Don't echo input */
6199 leaveok(stdscr, FALSE);
6204 getmaxyx(stdscr, y, x);
6205 status_win = newwin(1, 0, y - 1, 0);
6207 die("Failed to create status window");
6209 /* Enable keyboard mapping */
6210 keypad(status_win, TRUE);
6211 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6213 TABSIZE = opt_tab_size;
6214 if (opt_line_graphics) {
6215 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6218 term = getenv("XTERM_VERSION") ? NULL : getenv("COLORTERM");
6219 if (term && !strcmp(term, "gnome-terminal")) {
6220 /* In the gnome-terminal-emulator, the message from
6221 * scrolling up one line when impossible followed by
6222 * scrolling down one line causes corruption of the
6223 * status line. This is fixed by calling wclear. */
6224 use_scroll_status_wclear = TRUE;
6225 use_scroll_redrawwin = FALSE;
6227 } else if (term && !strcmp(term, "xrvt-xpm")) {
6228 /* No problems with full optimizations in xrvt-(unicode)
6230 use_scroll_status_wclear = use_scroll_redrawwin = FALSE;
6233 /* When scrolling in (u)xterm the last line in the
6234 * scrolling direction will update slowly. */
6235 use_scroll_redrawwin = TRUE;
6236 use_scroll_status_wclear = FALSE;
6241 get_input(int prompt_position)
6244 int i, key, cursor_y, cursor_x;
6246 if (prompt_position)
6250 foreach_view (view, i) {
6252 if (view_is_displayed(view) && view->has_scrolled &&
6253 use_scroll_redrawwin)
6254 redrawwin(view->win);
6255 view->has_scrolled = FALSE;
6258 /* Update the cursor position. */
6259 if (prompt_position) {
6260 getbegyx(status_win, cursor_y, cursor_x);
6261 cursor_x = prompt_position;
6263 view = display[current_view];
6264 getbegyx(view->win, cursor_y, cursor_x);
6265 cursor_x = view->width - 1;
6266 cursor_y += view->lineno - view->offset;
6268 setsyx(cursor_y, cursor_x);
6270 /* Refresh, accept single keystroke of input */
6272 key = wgetch(status_win);
6274 /* wgetch() with nodelay() enabled returns ERR when
6275 * there's no input. */
6278 } else if (key == KEY_RESIZE) {
6281 getmaxyx(stdscr, height, width);
6283 wresize(status_win, 1, width);
6284 mvwin(status_win, height - 1, 0);
6285 wnoutrefresh(status_win);
6287 redraw_display(TRUE);
6297 prompt_input(const char *prompt, input_handler handler, void *data)
6299 enum input_status status = INPUT_OK;
6300 static char buf[SIZEOF_STR];
6305 while (status == INPUT_OK || status == INPUT_SKIP) {
6308 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6309 wclrtoeol(status_win);
6311 key = get_input(pos + 1);
6316 status = pos ? INPUT_STOP : INPUT_CANCEL;
6323 status = INPUT_CANCEL;
6327 status = INPUT_CANCEL;
6331 if (pos >= sizeof(buf)) {
6332 report("Input string too long");
6336 status = handler(data, buf, key);
6337 if (status == INPUT_OK)
6338 buf[pos++] = (char) key;
6342 /* Clear the status window */
6343 status_empty = FALSE;
6346 if (status == INPUT_CANCEL)
6354 static enum input_status
6355 prompt_yesno_handler(void *data, char *buf, int c)
6357 if (c == 'y' || c == 'Y')
6359 if (c == 'n' || c == 'N')
6360 return INPUT_CANCEL;
6365 prompt_yesno(const char *prompt)
6367 char prompt2[SIZEOF_STR];
6369 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6372 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6375 static enum input_status
6376 read_prompt_handler(void *data, char *buf, int c)
6378 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6382 read_prompt(const char *prompt)
6384 return prompt_input(prompt, read_prompt_handler, NULL);
6388 * Repository properties
6392 git_properties(const char **argv, const char *separators,
6393 int (*read_property)(char *, size_t, char *, size_t))
6397 if (init_io_rd(&io, argv, NULL, FORMAT_NONE))
6398 return read_properties(&io, separators, read_property);
6402 static struct ref *refs = NULL;
6403 static size_t refs_alloc = 0;
6404 static size_t refs_size = 0;
6406 /* Id <-> ref store */
6407 static struct ref ***id_refs = NULL;
6408 static size_t id_refs_alloc = 0;
6409 static size_t id_refs_size = 0;
6412 compare_refs(const void *ref1_, const void *ref2_)
6414 const struct ref *ref1 = *(const struct ref **)ref1_;
6415 const struct ref *ref2 = *(const struct ref **)ref2_;
6417 if (ref1->tag != ref2->tag)
6418 return ref2->tag - ref1->tag;
6419 if (ref1->ltag != ref2->ltag)
6420 return ref2->ltag - ref2->ltag;
6421 if (ref1->head != ref2->head)
6422 return ref2->head - ref1->head;
6423 if (ref1->tracked != ref2->tracked)
6424 return ref2->tracked - ref1->tracked;
6425 if (ref1->remote != ref2->remote)
6426 return ref2->remote - ref1->remote;
6427 return strcmp(ref1->name, ref2->name);
6430 static struct ref **
6431 get_refs(const char *id)
6433 struct ref ***tmp_id_refs;
6434 struct ref **ref_list = NULL;
6435 size_t ref_list_alloc = 0;
6436 size_t ref_list_size = 0;
6439 for (i = 0; i < id_refs_size; i++)
6440 if (!strcmp(id, id_refs[i][0]->id))
6443 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6448 id_refs = tmp_id_refs;
6450 for (i = 0; i < refs_size; i++) {
6453 if (strcmp(id, refs[i].id))
6456 tmp = realloc_items(ref_list, &ref_list_alloc,
6457 ref_list_size + 1, sizeof(*ref_list));
6465 ref_list[ref_list_size] = &refs[i];
6466 /* XXX: The properties of the commit chains ensures that we can
6467 * safely modify the shared ref. The repo references will
6468 * always be similar for the same id. */
6469 ref_list[ref_list_size]->next = 1;
6475 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6476 ref_list[ref_list_size - 1]->next = 0;
6477 id_refs[id_refs_size++] = ref_list;
6484 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6489 bool remote = FALSE;
6490 bool tracked = FALSE;
6491 bool check_replace = FALSE;
6494 if (!prefixcmp(name, "refs/tags/")) {
6495 if (!suffixcmp(name, namelen, "^{}")) {
6498 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6499 check_replace = TRUE;
6505 namelen -= STRING_SIZE("refs/tags/");
6506 name += STRING_SIZE("refs/tags/");
6508 } else if (!prefixcmp(name, "refs/remotes/")) {
6510 namelen -= STRING_SIZE("refs/remotes/");
6511 name += STRING_SIZE("refs/remotes/");
6512 tracked = !strcmp(opt_remote, name);
6514 } else if (!prefixcmp(name, "refs/heads/")) {
6515 namelen -= STRING_SIZE("refs/heads/");
6516 name += STRING_SIZE("refs/heads/");
6517 head = !strncmp(opt_head, name, namelen);
6519 } else if (!strcmp(name, "HEAD")) {
6520 string_ncopy(opt_head_rev, id, idlen);
6524 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6525 /* it's an annotated tag, replace the previous sha1 with the
6526 * resolved commit id; relies on the fact git-ls-remote lists
6527 * the commit id of an annotated tag right before the commit id
6529 refs[refs_size - 1].ltag = ltag;
6530 string_copy_rev(refs[refs_size - 1].id, id);
6534 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6538 ref = &refs[refs_size++];
6539 ref->name = malloc(namelen + 1);
6543 strncpy(ref->name, name, namelen);
6544 ref->name[namelen] = 0;
6548 ref->remote = remote;
6549 ref->tracked = tracked;
6550 string_copy_rev(ref->id, id);
6558 static const char *ls_remote_argv[SIZEOF_ARG] = {
6559 "git", "ls-remote", ".", NULL
6561 static bool init = FALSE;
6564 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6571 while (refs_size > 0)
6572 free(refs[--refs_size].name);
6573 while (id_refs_size > 0)
6574 free(id_refs[--id_refs_size]);
6576 return git_properties(ls_remote_argv, "\t", read_ref);
6580 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6582 if (!strcmp(name, "i18n.commitencoding"))
6583 string_ncopy(opt_encoding, value, valuelen);
6585 if (!strcmp(name, "core.editor"))
6586 string_ncopy(opt_editor, value, valuelen);
6588 /* branch.<head>.remote */
6590 !strncmp(name, "branch.", 7) &&
6591 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6592 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6593 string_ncopy(opt_remote, value, valuelen);
6595 if (*opt_head && *opt_remote &&
6596 !strncmp(name, "branch.", 7) &&
6597 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6598 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6599 size_t from = strlen(opt_remote);
6601 if (!prefixcmp(value, "refs/heads/")) {
6602 value += STRING_SIZE("refs/heads/");
6603 valuelen -= STRING_SIZE("refs/heads/");
6606 if (!string_format_from(opt_remote, &from, "/%s", value))
6614 load_git_config(void)
6616 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6618 return git_properties(config_list_argv, "=", read_repo_config_option);
6622 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6624 if (!opt_git_dir[0]) {
6625 string_ncopy(opt_git_dir, name, namelen);
6627 } else if (opt_is_inside_work_tree == -1) {
6628 /* This can be 3 different values depending on the
6629 * version of git being used. If git-rev-parse does not
6630 * understand --is-inside-work-tree it will simply echo
6631 * the option else either "true" or "false" is printed.
6632 * Default to true for the unknown case. */
6633 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6635 } else if (*name == '.') {
6636 string_ncopy(opt_cdup, name, namelen);
6639 string_ncopy(opt_prefix, name, namelen);
6646 load_repo_info(void)
6648 const char *head_argv[] = {
6649 "git", "symbolic-ref", "HEAD", NULL
6651 const char *rev_parse_argv[] = {
6652 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6653 "--show-cdup", "--show-prefix", NULL
6656 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6657 chomp_string(opt_head);
6658 if (!prefixcmp(opt_head, "refs/heads/")) {
6659 char *offset = opt_head + STRING_SIZE("refs/heads/");
6661 memmove(opt_head, offset, strlen(offset) + 1);
6665 return git_properties(rev_parse_argv, "=", read_repo_info);
6669 read_properties(struct io *io, const char *separators,
6670 int (*read_property)(char *, size_t, char *, size_t))
6678 while (state == OK && (name = io_get(io, '\n', TRUE))) {
6683 name = chomp_string(name);
6684 namelen = strcspn(name, separators);
6686 if (name[namelen]) {
6688 value = chomp_string(name + namelen + 1);
6689 valuelen = strlen(value);
6696 state = read_property(name, namelen, value, valuelen);
6699 if (state != ERR && io_error(io))
6711 static void __NORETURN
6714 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6720 static void __NORETURN
6721 die(const char *err, ...)
6727 va_start(args, err);
6728 fputs("tig: ", stderr);
6729 vfprintf(stderr, err, args);
6730 fputs("\n", stderr);
6737 warn(const char *msg, ...)
6741 va_start(args, msg);
6742 fputs("tig warning: ", stderr);
6743 vfprintf(stderr, msg, args);
6744 fputs("\n", stderr);
6749 main(int argc, const char *argv[])
6751 const char **run_argv = NULL;
6753 enum request request;
6756 signal(SIGINT, quit);
6758 if (setlocale(LC_ALL, "")) {
6759 char *codeset = nl_langinfo(CODESET);
6761 string_ncopy(opt_codeset, codeset, strlen(codeset));
6764 if (load_repo_info() == ERR)
6765 die("Failed to load repo info.");
6767 if (load_options() == ERR)
6768 die("Failed to load user config.");
6770 if (load_git_config() == ERR)
6771 die("Failed to load repo config.");
6773 request = parse_options(argc, argv, &run_argv);
6774 if (request == REQ_NONE)
6777 /* Require a git repository unless when running in pager mode. */
6778 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6779 die("Not a git repository");
6781 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6784 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6785 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6786 if (opt_iconv == ICONV_NONE)
6787 die("Failed to initialize character set conversion");
6790 if (load_refs() == ERR)
6791 die("Failed to load refs.");
6793 foreach_view (view, i)
6794 argv_from_env(view->ops->argv, view->cmd_env);
6798 if (request == REQ_VIEW_PAGER || run_argv) {
6799 if (request == REQ_VIEW_PAGER)
6800 io_open(&VIEW(request)->io, "");
6801 else if (!prepare_update(VIEW(request), run_argv, NULL, FORMAT_NONE))
6802 die("Failed to format arguments");
6803 open_view(NULL, request, OPEN_PREPARED);
6807 while (view_driver(display[current_view], request)) {
6808 int key = get_input(0);
6810 view = display[current_view];
6811 request = get_keybinding(view->keymap, key);
6813 /* Some low-level request handling. This keeps access to
6814 * status_win restricted. */
6818 char *cmd = read_prompt(":");
6821 struct view *next = VIEW(REQ_VIEW_PAGER);
6822 const char *argv[SIZEOF_ARG] = { "git" };
6825 /* When running random commands, initially show the
6826 * command in the title. However, it maybe later be
6827 * overwritten if a commit line is selected. */
6828 string_ncopy(next->ref, cmd, strlen(cmd));
6830 if (!argv_from_string(argv, &argc, cmd)) {
6831 report("Too many arguments");
6832 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6833 report("Failed to format command");
6835 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6843 case REQ_SEARCH_BACK:
6845 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6846 char *search = read_prompt(prompt);
6849 string_ncopy(opt_search, search, strlen(search));