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;
656 io_load(struct io *io, const char *separators,
657 int (*read_property)(char *, size_t, char *, size_t))
665 while (state == OK && (name = io_get(io, '\n', TRUE))) {
670 name = chomp_string(name);
671 namelen = strcspn(name, separators);
675 value = chomp_string(name + namelen + 1);
676 valuelen = strlen(value);
683 state = read_property(name, namelen, value, valuelen);
686 if (state != ERR && io_error(io))
694 run_io_load(const char **argv, const char *separators,
695 int (*read_property)(char *, size_t, char *, size_t))
699 return init_io_rd(&io, argv, NULL, FORMAT_NONE)
700 ? io_load(&io, separators, read_property) : ERR;
709 /* XXX: Keep the view request first and in sync with views[]. */ \
710 REQ_GROUP("View switching") \
711 REQ_(VIEW_MAIN, "Show main view"), \
712 REQ_(VIEW_DIFF, "Show diff view"), \
713 REQ_(VIEW_LOG, "Show log view"), \
714 REQ_(VIEW_TREE, "Show tree view"), \
715 REQ_(VIEW_BLOB, "Show blob view"), \
716 REQ_(VIEW_BLAME, "Show blame view"), \
717 REQ_(VIEW_HELP, "Show help page"), \
718 REQ_(VIEW_PAGER, "Show pager view"), \
719 REQ_(VIEW_STATUS, "Show status view"), \
720 REQ_(VIEW_STAGE, "Show stage view"), \
722 REQ_GROUP("View manipulation") \
723 REQ_(ENTER, "Enter current line and scroll"), \
724 REQ_(NEXT, "Move to next"), \
725 REQ_(PREVIOUS, "Move to previous"), \
726 REQ_(PARENT, "Move to parent"), \
727 REQ_(VIEW_NEXT, "Move focus to next view"), \
728 REQ_(REFRESH, "Reload and refresh"), \
729 REQ_(MAXIMIZE, "Maximize the current view"), \
730 REQ_(VIEW_CLOSE, "Close the current view"), \
731 REQ_(QUIT, "Close all views and quit"), \
733 REQ_GROUP("View specific requests") \
734 REQ_(STATUS_UPDATE, "Update file status"), \
735 REQ_(STATUS_REVERT, "Revert file changes"), \
736 REQ_(STATUS_MERGE, "Merge file using external tool"), \
737 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
739 REQ_GROUP("Cursor navigation") \
740 REQ_(MOVE_UP, "Move cursor one line up"), \
741 REQ_(MOVE_DOWN, "Move cursor one line down"), \
742 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
743 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
744 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
745 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
747 REQ_GROUP("Scrolling") \
748 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
749 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
750 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
751 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
753 REQ_GROUP("Searching") \
754 REQ_(SEARCH, "Search the view"), \
755 REQ_(SEARCH_BACK, "Search backwards in the view"), \
756 REQ_(FIND_NEXT, "Find next search match"), \
757 REQ_(FIND_PREV, "Find previous search match"), \
759 REQ_GROUP("Option manipulation") \
760 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
761 REQ_(TOGGLE_DATE, "Toggle date display"), \
762 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
763 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
764 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
767 REQ_(PROMPT, "Bring up the prompt"), \
768 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
769 REQ_(SHOW_VERSION, "Show version information"), \
770 REQ_(STOP_LOADING, "Stop all loading views"), \
771 REQ_(EDIT, "Open in editor"), \
772 REQ_(NONE, "Do nothing")
775 /* User action requests. */
777 #define REQ_GROUP(help)
778 #define REQ_(req, help) REQ_##req
780 /* Offset all requests to avoid conflicts with ncurses getch values. */
781 REQ_OFFSET = KEY_MAX + 1,
788 struct request_info {
789 enum request request;
795 static struct request_info req_info[] = {
796 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
797 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
804 get_request(const char *name)
806 int namelen = strlen(name);
809 for (i = 0; i < ARRAY_SIZE(req_info); i++)
810 if (req_info[i].namelen == namelen &&
811 !string_enum_compare(req_info[i].name, name, namelen))
812 return req_info[i].request;
822 static const char usage[] =
823 "tig " TIG_VERSION " (" __DATE__ ")\n"
825 "Usage: tig [options] [revs] [--] [paths]\n"
826 " or: tig show [options] [revs] [--] [paths]\n"
827 " or: tig blame [rev] path\n"
829 " or: tig < [git command output]\n"
832 " -v, --version Show version and exit\n"
833 " -h, --help Show help message and exit";
835 /* Option and state variables. */
836 static bool opt_date = TRUE;
837 static bool opt_author = TRUE;
838 static bool opt_line_number = FALSE;
839 static bool opt_line_graphics = TRUE;
840 static bool opt_rev_graph = FALSE;
841 static bool opt_show_refs = TRUE;
842 static int opt_num_interval = NUMBER_INTERVAL;
843 static int opt_tab_size = TAB_SIZE;
844 static int opt_author_cols = AUTHOR_COLS-1;
845 static char opt_path[SIZEOF_STR] = "";
846 static char opt_file[SIZEOF_STR] = "";
847 static char opt_ref[SIZEOF_REF] = "";
848 static char opt_head[SIZEOF_REF] = "";
849 static char opt_head_rev[SIZEOF_REV] = "";
850 static char opt_remote[SIZEOF_REF] = "";
851 static char opt_encoding[20] = "UTF-8";
852 static bool opt_utf8 = TRUE;
853 static char opt_codeset[20] = "UTF-8";
854 static iconv_t opt_iconv = ICONV_NONE;
855 static char opt_search[SIZEOF_STR] = "";
856 static char opt_cdup[SIZEOF_STR] = "";
857 static char opt_prefix[SIZEOF_STR] = "";
858 static char opt_git_dir[SIZEOF_STR] = "";
859 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
860 static char opt_editor[SIZEOF_STR] = "";
861 static FILE *opt_tty = NULL;
863 #define is_initial_commit() (!*opt_head_rev)
864 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || !strcmp(opt_head_rev, (rev)))
868 * Line-oriented content detection.
872 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
873 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
874 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
875 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
876 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
877 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
878 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
879 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
880 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
881 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
882 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
883 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
884 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
885 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
886 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
887 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
888 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
889 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
890 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
891 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
892 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
893 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
894 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
895 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
896 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
897 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
898 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
899 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
900 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
901 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
902 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
903 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
904 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
905 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
906 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
907 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
908 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
909 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
910 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
911 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
912 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
913 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
914 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
915 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
916 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
917 LINE(TREE_PARENT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD), \
918 LINE(TREE_MODE, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
919 LINE(TREE_DIR, "", COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), \
920 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
921 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
922 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
923 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
924 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
925 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
926 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
927 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
930 #define LINE(type, line, fg, bg, attr) \
938 const char *name; /* Option name. */
939 int namelen; /* Size of option name. */
940 const char *line; /* The start of line to match. */
941 int linelen; /* Size of string to match. */
942 int fg, bg, attr; /* Color and text attributes for the lines. */
945 static struct line_info line_info[] = {
946 #define LINE(type, line, fg, bg, attr) \
947 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
952 static enum line_type
953 get_line_type(const char *line)
955 int linelen = strlen(line);
958 for (type = 0; type < ARRAY_SIZE(line_info); type++)
959 /* Case insensitive search matches Signed-off-by lines better. */
960 if (linelen >= line_info[type].linelen &&
961 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
968 get_line_attr(enum line_type type)
970 assert(type < ARRAY_SIZE(line_info));
971 return COLOR_PAIR(type) | line_info[type].attr;
974 static struct line_info *
975 get_line_info(const char *name)
977 size_t namelen = strlen(name);
980 for (type = 0; type < ARRAY_SIZE(line_info); type++)
981 if (namelen == line_info[type].namelen &&
982 !string_enum_compare(line_info[type].name, name, namelen))
983 return &line_info[type];
991 int default_bg = line_info[LINE_DEFAULT].bg;
992 int default_fg = line_info[LINE_DEFAULT].fg;
997 if (assume_default_colors(default_fg, default_bg) == ERR) {
998 default_bg = COLOR_BLACK;
999 default_fg = COLOR_WHITE;
1002 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
1003 struct line_info *info = &line_info[type];
1004 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
1005 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
1007 init_pair(type, fg, bg);
1012 enum line_type type;
1015 unsigned int selected:1;
1016 unsigned int dirty:1;
1017 unsigned int cleareol:1;
1019 void *data; /* User data */
1029 enum request request;
1032 static struct keybinding default_keybindings[] = {
1033 /* View switching */
1034 { 'm', REQ_VIEW_MAIN },
1035 { 'd', REQ_VIEW_DIFF },
1036 { 'l', REQ_VIEW_LOG },
1037 { 't', REQ_VIEW_TREE },
1038 { 'f', REQ_VIEW_BLOB },
1039 { 'B', REQ_VIEW_BLAME },
1040 { 'p', REQ_VIEW_PAGER },
1041 { 'h', REQ_VIEW_HELP },
1042 { 'S', REQ_VIEW_STATUS },
1043 { 'c', REQ_VIEW_STAGE },
1045 /* View manipulation */
1046 { 'q', REQ_VIEW_CLOSE },
1047 { KEY_TAB, REQ_VIEW_NEXT },
1048 { KEY_RETURN, REQ_ENTER },
1049 { KEY_UP, REQ_PREVIOUS },
1050 { KEY_DOWN, REQ_NEXT },
1051 { 'R', REQ_REFRESH },
1052 { KEY_F(5), REQ_REFRESH },
1053 { 'O', REQ_MAXIMIZE },
1055 /* Cursor navigation */
1056 { 'k', REQ_MOVE_UP },
1057 { 'j', REQ_MOVE_DOWN },
1058 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1059 { KEY_END, REQ_MOVE_LAST_LINE },
1060 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1061 { ' ', REQ_MOVE_PAGE_DOWN },
1062 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1063 { 'b', REQ_MOVE_PAGE_UP },
1064 { '-', REQ_MOVE_PAGE_UP },
1067 { KEY_IC, REQ_SCROLL_LINE_UP },
1068 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1069 { 'w', REQ_SCROLL_PAGE_UP },
1070 { 's', REQ_SCROLL_PAGE_DOWN },
1073 { '/', REQ_SEARCH },
1074 { '?', REQ_SEARCH_BACK },
1075 { 'n', REQ_FIND_NEXT },
1076 { 'N', REQ_FIND_PREV },
1080 { 'z', REQ_STOP_LOADING },
1081 { 'v', REQ_SHOW_VERSION },
1082 { 'r', REQ_SCREEN_REDRAW },
1083 { '.', REQ_TOGGLE_LINENO },
1084 { 'D', REQ_TOGGLE_DATE },
1085 { 'A', REQ_TOGGLE_AUTHOR },
1086 { 'g', REQ_TOGGLE_REV_GRAPH },
1087 { 'F', REQ_TOGGLE_REFS },
1088 { ':', REQ_PROMPT },
1089 { 'u', REQ_STATUS_UPDATE },
1090 { '!', REQ_STATUS_REVERT },
1091 { 'M', REQ_STATUS_MERGE },
1092 { '@', REQ_STAGE_NEXT },
1093 { ',', REQ_PARENT },
1097 #define KEYMAP_INFO \
1111 #define KEYMAP_(name) KEYMAP_##name
1116 static struct int_map keymap_table[] = {
1117 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
1122 #define set_keymap(map, name) \
1123 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
1125 struct keybinding_table {
1126 struct keybinding *data;
1130 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1133 add_keybinding(enum keymap keymap, enum request request, int key)
1135 struct keybinding_table *table = &keybindings[keymap];
1137 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1139 die("Failed to allocate keybinding");
1140 table->data[table->size].alias = key;
1141 table->data[table->size++].request = request;
1144 /* Looks for a key binding first in the given map, then in the generic map, and
1145 * lastly in the default keybindings. */
1147 get_keybinding(enum keymap keymap, int key)
1151 for (i = 0; i < keybindings[keymap].size; i++)
1152 if (keybindings[keymap].data[i].alias == key)
1153 return keybindings[keymap].data[i].request;
1155 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1156 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1157 return keybindings[KEYMAP_GENERIC].data[i].request;
1159 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1160 if (default_keybindings[i].alias == key)
1161 return default_keybindings[i].request;
1163 return (enum request) key;
1172 static struct key key_table[] = {
1173 { "Enter", KEY_RETURN },
1175 { "Backspace", KEY_BACKSPACE },
1177 { "Escape", KEY_ESC },
1178 { "Left", KEY_LEFT },
1179 { "Right", KEY_RIGHT },
1181 { "Down", KEY_DOWN },
1182 { "Insert", KEY_IC },
1183 { "Delete", KEY_DC },
1185 { "Home", KEY_HOME },
1187 { "PageUp", KEY_PPAGE },
1188 { "PageDown", KEY_NPAGE },
1198 { "F10", KEY_F(10) },
1199 { "F11", KEY_F(11) },
1200 { "F12", KEY_F(12) },
1204 get_key_value(const char *name)
1208 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1209 if (!strcasecmp(key_table[i].name, name))
1210 return key_table[i].value;
1212 if (strlen(name) == 1 && isprint(*name))
1219 get_key_name(int key_value)
1221 static char key_char[] = "'X'";
1222 const char *seq = NULL;
1225 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1226 if (key_table[key].value == key_value)
1227 seq = key_table[key].name;
1231 isprint(key_value)) {
1232 key_char[1] = (char) key_value;
1236 return seq ? seq : "(no key)";
1240 get_key(enum request request)
1242 static char buf[BUFSIZ];
1249 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1250 struct keybinding *keybinding = &default_keybindings[i];
1252 if (keybinding->request != request)
1255 if (!string_format_from(buf, &pos, "%s%s", sep,
1256 get_key_name(keybinding->alias)))
1257 return "Too many keybindings!";
1264 struct run_request {
1267 const char *argv[SIZEOF_ARG];
1270 static struct run_request *run_request;
1271 static size_t run_requests;
1274 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1276 struct run_request *req;
1278 if (argc >= ARRAY_SIZE(req->argv) - 1)
1281 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1286 req = &run_request[run_requests];
1287 req->keymap = keymap;
1289 req->argv[0] = NULL;
1291 if (!format_argv(req->argv, argv, FORMAT_NONE))
1294 return REQ_NONE + ++run_requests;
1297 static struct run_request *
1298 get_run_request(enum request request)
1300 if (request <= REQ_NONE)
1302 return &run_request[request - REQ_NONE - 1];
1306 add_builtin_run_requests(void)
1308 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1309 const char *gc[] = { "git", "gc", NULL };
1316 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1317 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1321 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1324 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1325 if (req != REQ_NONE)
1326 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1331 * User config file handling.
1334 static struct int_map color_map[] = {
1335 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1347 #define set_color(color, name) \
1348 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1350 static struct int_map attr_map[] = {
1351 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1358 ATTR_MAP(UNDERLINE),
1361 #define set_attribute(attr, name) \
1362 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1364 static int config_lineno;
1365 static bool config_errors;
1366 static const char *config_msg;
1368 /* Wants: object fgcolor bgcolor [attr] */
1370 option_color_command(int argc, const char *argv[])
1372 struct line_info *info;
1374 if (argc != 3 && argc != 4) {
1375 config_msg = "Wrong number of arguments given to color command";
1379 info = get_line_info(argv[0]);
1381 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1382 info = get_line_info("delimiter");
1384 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1385 info = get_line_info("date");
1388 config_msg = "Unknown color name";
1393 if (set_color(&info->fg, argv[1]) == ERR ||
1394 set_color(&info->bg, argv[2]) == ERR) {
1395 config_msg = "Unknown color";
1399 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1400 config_msg = "Unknown attribute";
1407 static bool parse_bool(const char *s)
1409 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1410 !strcmp(s, "yes")) ? TRUE : FALSE;
1414 parse_int(const char *s, int default_value, int min, int max)
1416 int value = atoi(s);
1418 return (value < min || value > max) ? default_value : value;
1421 /* Wants: name = value */
1423 option_set_command(int argc, const char *argv[])
1426 config_msg = "Wrong number of arguments given to set command";
1430 if (strcmp(argv[1], "=")) {
1431 config_msg = "No value assigned";
1435 if (!strcmp(argv[0], "show-author")) {
1436 opt_author = parse_bool(argv[2]);
1440 if (!strcmp(argv[0], "show-date")) {
1441 opt_date = parse_bool(argv[2]);
1445 if (!strcmp(argv[0], "show-rev-graph")) {
1446 opt_rev_graph = parse_bool(argv[2]);
1450 if (!strcmp(argv[0], "show-refs")) {
1451 opt_show_refs = parse_bool(argv[2]);
1455 if (!strcmp(argv[0], "show-line-numbers")) {
1456 opt_line_number = parse_bool(argv[2]);
1460 if (!strcmp(argv[0], "line-graphics")) {
1461 opt_line_graphics = parse_bool(argv[2]);
1465 if (!strcmp(argv[0], "line-number-interval")) {
1466 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1470 if (!strcmp(argv[0], "author-width")) {
1471 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1475 if (!strcmp(argv[0], "tab-size")) {
1476 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1480 if (!strcmp(argv[0], "commit-encoding")) {
1481 const char *arg = argv[2];
1482 int arglen = strlen(arg);
1487 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1488 config_msg = "Unmatched quotation";
1491 arg += 1; arglen -= 2;
1493 string_ncopy(opt_encoding, arg, strlen(arg));
1498 config_msg = "Unknown variable name";
1502 /* Wants: mode request key */
1504 option_bind_command(int argc, const char *argv[])
1506 enum request request;
1511 config_msg = "Wrong number of arguments given to bind command";
1515 if (set_keymap(&keymap, argv[0]) == ERR) {
1516 config_msg = "Unknown key map";
1520 key = get_key_value(argv[1]);
1522 config_msg = "Unknown key";
1526 request = get_request(argv[2]);
1527 if (request == REQ_NONE) {
1530 enum request request;
1532 { "cherry-pick", REQ_NONE },
1533 { "screen-resize", REQ_NONE },
1534 { "tree-parent", REQ_PARENT },
1536 size_t namelen = strlen(argv[2]);
1539 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1540 if (namelen != strlen(obsolete[i].name) ||
1541 string_enum_compare(obsolete[i].name, argv[2], namelen))
1543 if (obsolete[i].request != REQ_NONE)
1544 add_keybinding(keymap, obsolete[i].request, key);
1545 config_msg = "Obsolete request name";
1549 if (request == REQ_NONE && *argv[2]++ == '!')
1550 request = add_run_request(keymap, key, argc - 2, argv + 2);
1551 if (request == REQ_NONE) {
1552 config_msg = "Unknown request name";
1556 add_keybinding(keymap, request, key);
1562 set_option(const char *opt, char *value)
1564 const char *argv[SIZEOF_ARG];
1567 if (!argv_from_string(argv, &argc, value)) {
1568 config_msg = "Too many option arguments";
1572 if (!strcmp(opt, "color"))
1573 return option_color_command(argc, argv);
1575 if (!strcmp(opt, "set"))
1576 return option_set_command(argc, argv);
1578 if (!strcmp(opt, "bind"))
1579 return option_bind_command(argc, argv);
1581 config_msg = "Unknown option command";
1586 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1591 config_msg = "Internal error";
1593 /* Check for comment markers, since read_properties() will
1594 * only ensure opt and value are split at first " \t". */
1595 optlen = strcspn(opt, "#");
1599 if (opt[optlen] != 0) {
1600 config_msg = "No option value";
1604 /* Look for comment endings in the value. */
1605 size_t len = strcspn(value, "#");
1607 if (len < valuelen) {
1609 value[valuelen] = 0;
1612 status = set_option(opt, value);
1615 if (status == ERR) {
1616 warn("Error on line %d, near '%.*s': %s",
1617 config_lineno, (int) optlen, opt, config_msg);
1618 config_errors = TRUE;
1621 /* Always keep going if errors are encountered. */
1626 load_option_file(const char *path)
1630 /* It's ok that the file doesn't exist. */
1631 if (!io_open(&io, path))
1635 config_errors = FALSE;
1637 if (io_load(&io, " \t", read_option) == ERR ||
1638 config_errors == TRUE)
1639 warn("Errors while loading %s.", path);
1645 const char *home = getenv("HOME");
1646 const char *tigrc_user = getenv("TIGRC_USER");
1647 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1648 char buf[SIZEOF_STR];
1650 add_builtin_run_requests();
1652 if (!tigrc_system) {
1653 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1657 load_option_file(tigrc_system);
1660 if (!home || !string_format(buf, "%s/.tigrc", home))
1664 load_option_file(tigrc_user);
1677 /* The display array of active views and the index of the current view. */
1678 static struct view *display[2];
1679 static unsigned int current_view;
1681 #define foreach_displayed_view(view, i) \
1682 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1684 #define displayed_views() (display[1] != NULL ? 2 : 1)
1686 /* Current head and commit ID */
1687 static char ref_blob[SIZEOF_REF] = "";
1688 static char ref_commit[SIZEOF_REF] = "HEAD";
1689 static char ref_head[SIZEOF_REF] = "HEAD";
1692 const char *name; /* View name */
1693 const char *cmd_env; /* Command line set via environment */
1694 const char *id; /* Points to either of ref_{head,commit,blob} */
1696 struct view_ops *ops; /* View operations */
1698 enum keymap keymap; /* What keymap does this view have */
1699 bool git_dir; /* Whether the view requires a git directory. */
1701 char ref[SIZEOF_REF]; /* Hovered commit reference */
1702 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1704 int height, width; /* The width and height of the main window */
1705 WINDOW *win; /* The main window */
1706 WINDOW *title; /* The title window living below the main window */
1709 unsigned long offset; /* Offset of the window top */
1710 unsigned long lineno; /* Current line number */
1711 unsigned long p_offset; /* Previous offset of the window top */
1712 unsigned long p_lineno; /* Previous current line number */
1713 bool p_restore; /* Should the previous position be restored. */
1716 char grep[SIZEOF_STR]; /* Search string */
1717 regex_t *regex; /* Pre-compiled regex */
1719 /* If non-NULL, points to the view that opened this view. If this view
1720 * is closed tig will switch back to the parent view. */
1721 struct view *parent;
1724 size_t lines; /* Total number of lines */
1725 struct line *line; /* Line index */
1726 size_t line_alloc; /* Total number of allocated lines */
1727 unsigned int digits; /* Number of digits in the lines member. */
1730 struct line *curline; /* Line currently being drawn. */
1731 enum line_type curtype; /* Attribute currently used for drawing. */
1732 unsigned long col; /* Column when drawing. */
1733 bool has_scrolled; /* View was scrolled. */
1743 /* What type of content being displayed. Used in the title bar. */
1745 /* Default command arguments. */
1747 /* Open and reads in all view content. */
1748 bool (*open)(struct view *view);
1749 /* Read one line; updates view->line. */
1750 bool (*read)(struct view *view, char *data);
1751 /* Draw one line; @lineno must be < view->height. */
1752 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1753 /* Depending on view handle a special requests. */
1754 enum request (*request)(struct view *view, enum request request, struct line *line);
1755 /* Search for regex in a line. */
1756 bool (*grep)(struct view *view, struct line *line);
1758 void (*select)(struct view *view, struct line *line);
1761 static struct view_ops blame_ops;
1762 static struct view_ops blob_ops;
1763 static struct view_ops diff_ops;
1764 static struct view_ops help_ops;
1765 static struct view_ops log_ops;
1766 static struct view_ops main_ops;
1767 static struct view_ops pager_ops;
1768 static struct view_ops stage_ops;
1769 static struct view_ops status_ops;
1770 static struct view_ops tree_ops;
1772 #define VIEW_STR(name, env, ref, ops, map, git) \
1773 { name, #env, ref, ops, map, git }
1775 #define VIEW_(id, name, ops, git, ref) \
1776 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1779 static struct view views[] = {
1780 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1781 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1782 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1783 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1784 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1785 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1786 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1787 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1788 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1789 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1792 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1793 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1795 #define foreach_view(view, i) \
1796 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1798 #define view_is_displayed(view) \
1799 (view == display[0] || view == display[1])
1806 static int line_graphics[] = {
1807 /* LINE_GRAPHIC_VLINE: */ '|'
1811 set_view_attr(struct view *view, enum line_type type)
1813 if (!view->curline->selected && view->curtype != type) {
1814 wattrset(view->win, get_line_attr(type));
1815 wchgat(view->win, -1, 0, type, NULL);
1816 view->curtype = type;
1821 draw_chars(struct view *view, enum line_type type, const char *string,
1822 int max_len, bool use_tilde)
1826 int trimmed = FALSE;
1832 len = utf8_length(string, &col, max_len, &trimmed, use_tilde);
1834 col = len = strlen(string);
1835 if (len > max_len) {
1839 col = len = max_len;
1844 set_view_attr(view, type);
1845 waddnstr(view->win, string, len);
1846 if (trimmed && use_tilde) {
1847 set_view_attr(view, LINE_DELIMITER);
1848 waddch(view->win, '~');
1856 draw_space(struct view *view, enum line_type type, int max, int spaces)
1858 static char space[] = " ";
1861 spaces = MIN(max, spaces);
1863 while (spaces > 0) {
1864 int len = MIN(spaces, sizeof(space) - 1);
1866 col += draw_chars(view, type, space, spaces, FALSE);
1874 draw_lineno(struct view *view, unsigned int lineno)
1877 int digits3 = view->digits < 3 ? 3 : view->digits;
1878 int max_number = MIN(digits3, STRING_SIZE(number));
1879 int max = view->width - view->col;
1882 if (max < max_number)
1885 lineno += view->offset + 1;
1886 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1887 static char fmt[] = "%1ld";
1889 if (view->digits <= 9)
1890 fmt[1] = '0' + digits3;
1892 if (!string_format(number, fmt, lineno))
1894 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1896 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1900 set_view_attr(view, LINE_DEFAULT);
1901 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1906 col += draw_space(view, LINE_DEFAULT, max - col, 1);
1909 return view->width - view->col <= 0;
1913 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1915 view->col += draw_chars(view, type, string, view->width - view->col, trim);
1916 return view->width - view->col <= 0;
1920 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1922 int max = view->width - view->col;
1928 set_view_attr(view, type);
1929 /* Using waddch() instead of waddnstr() ensures that
1930 * they'll be rendered correctly for the cursor line. */
1931 for (i = 0; i < size; i++)
1932 waddch(view->win, graphic[i]);
1936 waddch(view->win, ' ');
1940 return view->width - view->col <= 0;
1944 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1946 int max = MIN(view->width - view->col, len);
1950 col = draw_chars(view, type, text, max - 1, trim);
1952 col = draw_space(view, type, max - 1, max - 1);
1954 view->col += col + draw_space(view, LINE_DEFAULT, max - col, max - col);
1955 return view->width - view->col <= 0;
1959 draw_date(struct view *view, struct tm *time)
1961 char buf[DATE_COLS];
1966 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
1967 date = timelen ? buf : NULL;
1969 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1973 draw_author(struct view *view, const char *author)
1975 bool trim = opt_author_cols == 0 || opt_author_cols > 5 || !author;
1978 static char initials[10];
1981 #define is_initial_sep(c) (isspace(c) || ispunct(c) || (c) == '@')
1983 memset(initials, 0, sizeof(initials));
1984 for (pos = 0; *author && pos < opt_author_cols - 1; author++, pos++) {
1985 while (is_initial_sep(*author))
1987 strncpy(&initials[pos], author, sizeof(initials) - 1 - pos);
1988 while (*author && !is_initial_sep(author[1]))
1995 return draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, trim);
1999 draw_view_line(struct view *view, unsigned int lineno)
2002 bool selected = (view->offset + lineno == view->lineno);
2004 assert(view_is_displayed(view));
2006 if (view->offset + lineno >= view->lines)
2009 line = &view->line[view->offset + lineno];
2011 wmove(view->win, lineno, 0);
2013 wclrtoeol(view->win);
2015 view->curline = line;
2016 view->curtype = LINE_NONE;
2017 line->selected = FALSE;
2018 line->dirty = line->cleareol = 0;
2021 set_view_attr(view, LINE_CURSOR);
2022 line->selected = TRUE;
2023 view->ops->select(view, line);
2026 return view->ops->draw(view, line, lineno);
2030 redraw_view_dirty(struct view *view)
2035 for (lineno = 0; lineno < view->height; lineno++) {
2036 if (view->offset + lineno >= view->lines)
2038 if (!view->line[view->offset + lineno].dirty)
2041 if (!draw_view_line(view, lineno))
2047 wnoutrefresh(view->win);
2051 redraw_view_from(struct view *view, int lineno)
2053 assert(0 <= lineno && lineno < view->height);
2055 for (; lineno < view->height; lineno++) {
2056 if (!draw_view_line(view, lineno))
2060 wnoutrefresh(view->win);
2064 redraw_view(struct view *view)
2067 redraw_view_from(view, 0);
2072 update_view_title(struct view *view)
2074 char buf[SIZEOF_STR];
2075 char state[SIZEOF_STR];
2076 size_t bufpos = 0, statelen = 0;
2078 assert(view_is_displayed(view));
2080 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2081 unsigned int view_lines = view->offset + view->height;
2082 unsigned int lines = view->lines
2083 ? MIN(view_lines, view->lines) * 100 / view->lines
2086 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2095 time_t secs = time(NULL) - view->start_time;
2097 /* Three git seconds are a long time ... */
2099 string_format_from(state, &statelen, " loading %lds", secs);
2102 string_format_from(buf, &bufpos, "[%s]", view->name);
2103 if (*view->ref && bufpos < view->width) {
2104 size_t refsize = strlen(view->ref);
2105 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2107 if (minsize < view->width)
2108 refsize = view->width - minsize + 7;
2109 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2112 if (statelen && bufpos < view->width) {
2113 string_format_from(buf, &bufpos, "%s", state);
2116 if (view == display[current_view])
2117 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2119 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2121 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2122 wclrtoeol(view->title);
2123 wnoutrefresh(view->title);
2127 resize_display(void)
2130 struct view *base = display[0];
2131 struct view *view = display[1] ? display[1] : display[0];
2133 /* Setup window dimensions */
2135 getmaxyx(stdscr, base->height, base->width);
2137 /* Make room for the status window. */
2141 /* Horizontal split. */
2142 view->width = base->width;
2143 view->height = SCALE_SPLIT_VIEW(base->height);
2144 base->height -= view->height;
2146 /* Make room for the title bar. */
2150 /* Make room for the title bar. */
2155 foreach_displayed_view (view, i) {
2157 view->win = newwin(view->height, 0, offset, 0);
2159 die("Failed to create %s view", view->name);
2161 scrollok(view->win, FALSE);
2163 view->title = newwin(1, 0, offset + view->height, 0);
2165 die("Failed to create title window");
2168 wresize(view->win, view->height, view->width);
2169 mvwin(view->win, offset, 0);
2170 mvwin(view->title, offset + view->height, 0);
2173 offset += view->height + 1;
2178 redraw_display(bool clear)
2183 foreach_displayed_view (view, i) {
2187 update_view_title(view);
2192 toggle_view_option(bool *option, const char *help)
2195 redraw_display(FALSE);
2196 report("%sabling %s", *option ? "En" : "Dis", help);
2203 /* Scrolling backend */
2205 do_scroll_view(struct view *view, int lines)
2207 bool redraw_current_line = FALSE;
2209 /* The rendering expects the new offset. */
2210 view->offset += lines;
2212 assert(0 <= view->offset && view->offset < view->lines);
2215 /* Move current line into the view. */
2216 if (view->lineno < view->offset) {
2217 view->lineno = view->offset;
2218 redraw_current_line = TRUE;
2219 } else if (view->lineno >= view->offset + view->height) {
2220 view->lineno = view->offset + view->height - 1;
2221 redraw_current_line = TRUE;
2224 assert(view->offset <= view->lineno && view->lineno < view->lines);
2226 /* Redraw the whole screen if scrolling is pointless. */
2227 if (view->height < ABS(lines)) {
2231 int line = lines > 0 ? view->height - lines : 0;
2232 int end = line + ABS(lines);
2234 scrollok(view->win, TRUE);
2235 wscrl(view->win, lines);
2236 scrollok(view->win, FALSE);
2238 while (line < end && draw_view_line(view, line))
2241 if (redraw_current_line)
2242 draw_view_line(view, view->lineno - view->offset);
2243 wnoutrefresh(view->win);
2246 view->has_scrolled = TRUE;
2250 /* Scroll frontend */
2252 scroll_view(struct view *view, enum request request)
2256 assert(view_is_displayed(view));
2259 case REQ_SCROLL_PAGE_DOWN:
2260 lines = view->height;
2261 case REQ_SCROLL_LINE_DOWN:
2262 if (view->offset + lines > view->lines)
2263 lines = view->lines - view->offset;
2265 if (lines == 0 || view->offset + view->height >= view->lines) {
2266 report("Cannot scroll beyond the last line");
2271 case REQ_SCROLL_PAGE_UP:
2272 lines = view->height;
2273 case REQ_SCROLL_LINE_UP:
2274 if (lines > view->offset)
2275 lines = view->offset;
2278 report("Cannot scroll beyond the first line");
2286 die("request %d not handled in switch", request);
2289 do_scroll_view(view, lines);
2294 move_view(struct view *view, enum request request)
2296 int scroll_steps = 0;
2300 case REQ_MOVE_FIRST_LINE:
2301 steps = -view->lineno;
2304 case REQ_MOVE_LAST_LINE:
2305 steps = view->lines - view->lineno - 1;
2308 case REQ_MOVE_PAGE_UP:
2309 steps = view->height > view->lineno
2310 ? -view->lineno : -view->height;
2313 case REQ_MOVE_PAGE_DOWN:
2314 steps = view->lineno + view->height >= view->lines
2315 ? view->lines - view->lineno - 1 : view->height;
2327 die("request %d not handled in switch", request);
2330 if (steps <= 0 && view->lineno == 0) {
2331 report("Cannot move beyond the first line");
2334 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2335 report("Cannot move beyond the last line");
2339 /* Move the current line */
2340 view->lineno += steps;
2341 assert(0 <= view->lineno && view->lineno < view->lines);
2343 /* Check whether the view needs to be scrolled */
2344 if (view->lineno < view->offset ||
2345 view->lineno >= view->offset + view->height) {
2346 scroll_steps = steps;
2347 if (steps < 0 && -steps > view->offset) {
2348 scroll_steps = -view->offset;
2350 } else if (steps > 0) {
2351 if (view->lineno == view->lines - 1 &&
2352 view->lines > view->height) {
2353 scroll_steps = view->lines - view->offset - 1;
2354 if (scroll_steps >= view->height)
2355 scroll_steps -= view->height - 1;
2360 if (!view_is_displayed(view)) {
2361 view->offset += scroll_steps;
2362 assert(0 <= view->offset && view->offset < view->lines);
2363 view->ops->select(view, &view->line[view->lineno]);
2367 /* Repaint the old "current" line if we be scrolling */
2368 if (ABS(steps) < view->height)
2369 draw_view_line(view, view->lineno - steps - view->offset);
2372 do_scroll_view(view, scroll_steps);
2376 /* Draw the current line */
2377 draw_view_line(view, view->lineno - view->offset);
2379 wnoutrefresh(view->win);
2388 static void search_view(struct view *view, enum request request);
2391 select_view_line(struct view *view, unsigned long lineno)
2393 if (lineno - view->offset >= view->height) {
2394 view->offset = lineno;
2395 view->lineno = lineno;
2396 if (view_is_displayed(view))
2400 unsigned long old_lineno = view->lineno - view->offset;
2402 view->lineno = lineno;
2403 if (view_is_displayed(view)) {
2404 draw_view_line(view, old_lineno);
2405 draw_view_line(view, view->lineno - view->offset);
2406 wnoutrefresh(view->win);
2408 view->ops->select(view, &view->line[view->lineno]);
2414 find_next(struct view *view, enum request request)
2416 unsigned long lineno = view->lineno;
2421 report("No previous search");
2423 search_view(view, request);
2433 case REQ_SEARCH_BACK:
2442 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2443 lineno += direction;
2445 /* Note, lineno is unsigned long so will wrap around in which case it
2446 * will become bigger than view->lines. */
2447 for (; lineno < view->lines; lineno += direction) {
2448 if (view->ops->grep(view, &view->line[lineno])) {
2449 select_view_line(view, lineno);
2450 report("Line %ld matches '%s'", lineno + 1, view->grep);
2455 report("No match found for '%s'", view->grep);
2459 search_view(struct view *view, enum request request)
2464 regfree(view->regex);
2467 view->regex = calloc(1, sizeof(*view->regex));
2472 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2473 if (regex_err != 0) {
2474 char buf[SIZEOF_STR] = "unknown error";
2476 regerror(regex_err, view->regex, buf, sizeof(buf));
2477 report("Search failed: %s", buf);
2481 string_copy(view->grep, opt_search);
2483 find_next(view, request);
2487 * Incremental updating
2491 reset_view(struct view *view)
2495 for (i = 0; i < view->lines; i++)
2496 free(view->line[i].data);
2499 view->p_offset = view->offset;
2500 view->p_lineno = view->lineno;
2506 view->line_alloc = 0;
2508 view->update_secs = 0;
2512 free_argv(const char *argv[])
2516 for (argc = 0; argv[argc]; argc++)
2517 free((void *) argv[argc]);
2521 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2523 char buf[SIZEOF_STR];
2525 bool noreplace = flags == FORMAT_NONE;
2527 free_argv(dst_argv);
2529 for (argc = 0; src_argv[argc]; argc++) {
2530 const char *arg = src_argv[argc];
2534 char *next = strstr(arg, "%(");
2535 int len = next - arg;
2538 if (!next || noreplace) {
2539 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2544 } else if (!prefixcmp(next, "%(directory)")) {
2547 } else if (!prefixcmp(next, "%(file)")) {
2550 } else if (!prefixcmp(next, "%(ref)")) {
2551 value = *opt_ref ? opt_ref : "HEAD";
2553 } else if (!prefixcmp(next, "%(head)")) {
2556 } else if (!prefixcmp(next, "%(commit)")) {
2559 } else if (!prefixcmp(next, "%(blob)")) {
2563 report("Unknown replacement: `%s`", next);
2567 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2570 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2573 dst_argv[argc] = strdup(buf);
2574 if (!dst_argv[argc])
2578 dst_argv[argc] = NULL;
2580 return src_argv[argc] == NULL;
2584 restore_view_position(struct view *view)
2586 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2589 /* Changing the view position cancels the restoring. */
2590 /* FIXME: Changing back to the first line is not detected. */
2591 if (view->offset != 0 || view->lineno != 0) {
2592 view->p_restore = FALSE;
2596 if (view->p_lineno >= view->lines) {
2597 view->p_lineno = view->lines > 0 ? view->lines - 1 : 0;
2598 if (view->p_offset >= view->p_lineno) {
2599 unsigned long half = view->height / 2;
2601 if (view->p_lineno > half)
2602 view->p_offset = view->p_lineno - half;
2608 if (view_is_displayed(view) &&
2609 view->offset != view->p_offset &&
2610 view->lineno != view->p_lineno)
2613 view->offset = view->p_offset;
2614 view->lineno = view->p_lineno;
2615 view->p_restore = FALSE;
2621 end_update(struct view *view, bool force)
2625 while (!view->ops->read(view, NULL))
2628 set_nonblocking_input(FALSE);
2630 kill_io(view->pipe);
2631 done_io(view->pipe);
2636 setup_update(struct view *view, const char *vid)
2638 set_nonblocking_input(TRUE);
2640 string_copy_rev(view->vid, vid);
2641 view->pipe = &view->io;
2642 view->start_time = time(NULL);
2646 prepare_update(struct view *view, const char *argv[], const char *dir,
2647 enum format_flags flags)
2650 end_update(view, TRUE);
2651 return init_io_rd(&view->io, argv, dir, flags);
2655 prepare_update_file(struct view *view, const char *name)
2658 end_update(view, TRUE);
2659 return io_open(&view->io, name);
2663 begin_update(struct view *view, bool refresh)
2666 end_update(view, TRUE);
2669 if (!start_io(&view->io))
2673 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2676 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2679 /* Put the current ref_* value to the view title ref
2680 * member. This is needed by the blob view. Most other
2681 * views sets it automatically after loading because the
2682 * first line is a commit line. */
2683 string_copy_rev(view->ref, view->id);
2686 setup_update(view, view->id);
2691 #define ITEM_CHUNK_SIZE 256
2693 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2695 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2696 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2698 if (mem == NULL || num_chunks != num_chunks_new) {
2699 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2700 mem = realloc(mem, *size * item_size);
2706 static struct line *
2707 realloc_lines(struct view *view, size_t line_size)
2709 size_t alloc = view->line_alloc;
2710 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2711 sizeof(*view->line));
2717 view->line_alloc = alloc;
2722 update_view(struct view *view)
2724 char out_buffer[BUFSIZ * 2];
2726 /* Clear the view and redraw everything since the tree sorting
2727 * might have rearranged things. */
2728 bool redraw = view->lines == 0;
2729 bool can_read = TRUE;
2734 if (!io_can_read(view->pipe)) {
2735 if (view->lines == 0) {
2736 time_t secs = time(NULL) - view->start_time;
2738 if (secs > 1 && secs > view->update_secs) {
2739 if (view->update_secs == 0)
2741 update_view_title(view);
2742 view->update_secs = secs;
2748 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2749 if (opt_iconv != ICONV_NONE) {
2750 ICONV_CONST char *inbuf = line;
2751 size_t inlen = strlen(line) + 1;
2753 char *outbuf = out_buffer;
2754 size_t outlen = sizeof(out_buffer);
2758 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2759 if (ret != (size_t) -1)
2763 if (!view->ops->read(view, line)) {
2764 report("Allocation failure");
2765 end_update(view, TRUE);
2771 unsigned long lines = view->lines;
2774 for (digits = 0; lines; digits++)
2777 /* Keep the displayed view in sync with line number scaling. */
2778 if (digits != view->digits) {
2779 view->digits = digits;
2780 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2785 if (io_error(view->pipe)) {
2786 report("Failed to read: %s", io_strerror(view->pipe));
2787 end_update(view, TRUE);
2789 } else if (io_eof(view->pipe)) {
2791 end_update(view, FALSE);
2794 if (restore_view_position(view))
2797 if (!view_is_displayed(view))
2801 redraw_view_from(view, 0);
2803 redraw_view_dirty(view);
2805 /* Update the title _after_ the redraw so that if the redraw picks up a
2806 * commit reference in view->ref it'll be available here. */
2807 update_view_title(view);
2811 static struct line *
2812 add_line_data(struct view *view, void *data, enum line_type type)
2816 if (!realloc_lines(view, view->lines + 1))
2819 line = &view->line[view->lines++];
2820 memset(line, 0, sizeof(*line));
2828 static struct line *
2829 add_line_text(struct view *view, const char *text, enum line_type type)
2831 char *data = text ? strdup(text) : NULL;
2833 return data ? add_line_data(view, data, type) : NULL;
2836 static struct line *
2837 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2839 char buf[SIZEOF_STR];
2842 va_start(args, fmt);
2843 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2847 return buf[0] ? add_line_text(view, buf, type) : NULL;
2855 OPEN_DEFAULT = 0, /* Use default view switching. */
2856 OPEN_SPLIT = 1, /* Split current view. */
2857 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2858 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2859 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2860 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2861 OPEN_PREPARED = 32, /* Open already prepared command. */
2865 open_view(struct view *prev, enum request request, enum open_flags flags)
2867 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2868 bool split = !!(flags & OPEN_SPLIT);
2869 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2870 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2871 struct view *view = VIEW(request);
2872 int nviews = displayed_views();
2873 struct view *base_view = display[0];
2875 if (view == prev && nviews == 1 && !reload) {
2876 report("Already in %s view", view->name);
2880 if (view->git_dir && !opt_git_dir[0]) {
2881 report("The %s view is disabled in pager view", view->name);
2889 } else if (!nomaximize) {
2890 /* Maximize the current view. */
2891 memset(display, 0, sizeof(display));
2893 display[current_view] = view;
2896 /* Resize the view when switching between split- and full-screen,
2897 * or when switching between two different full-screen views. */
2898 if (nviews != displayed_views() ||
2899 (nviews == 1 && base_view != display[0]))
2902 if (view->ops->open) {
2904 end_update(view, TRUE);
2905 if (!view->ops->open(view)) {
2906 report("Failed to load %s view", view->name);
2909 restore_view_position(view);
2911 } else if ((reload || strcmp(view->vid, view->id)) &&
2912 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2913 report("Failed to load %s view", view->name);
2917 if (split && prev->lineno - prev->offset >= prev->height) {
2918 /* Take the title line into account. */
2919 int lines = prev->lineno - prev->offset - prev->height + 1;
2921 /* Scroll the view that was split if the current line is
2922 * outside the new limited view. */
2923 do_scroll_view(prev, lines);
2926 if (prev && view != prev) {
2927 if (split && !backgrounded) {
2928 /* "Blur" the previous view. */
2929 update_view_title(prev);
2932 view->parent = prev;
2935 if (view->pipe && view->lines == 0) {
2936 /* Clear the old view and let the incremental updating refill
2939 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
2941 } else if (view_is_displayed(view)) {
2946 /* If the view is backgrounded the above calls to report()
2947 * won't redraw the view title. */
2949 update_view_title(view);
2953 open_external_viewer(const char *argv[], const char *dir)
2955 def_prog_mode(); /* save current tty modes */
2956 endwin(); /* restore original tty modes */
2957 run_io_fg(argv, dir);
2958 fprintf(stderr, "Press Enter to continue");
2961 redraw_display(TRUE);
2965 open_mergetool(const char *file)
2967 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
2969 open_external_viewer(mergetool_argv, opt_cdup);
2973 open_editor(bool from_root, const char *file)
2975 const char *editor_argv[] = { "vi", file, NULL };
2978 editor = getenv("GIT_EDITOR");
2979 if (!editor && *opt_editor)
2980 editor = opt_editor;
2982 editor = getenv("VISUAL");
2984 editor = getenv("EDITOR");
2988 editor_argv[0] = editor;
2989 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
2993 open_run_request(enum request request)
2995 struct run_request *req = get_run_request(request);
2996 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
2999 report("Unknown run request");
3003 if (format_argv(argv, req->argv, FORMAT_ALL))
3004 open_external_viewer(argv, NULL);
3009 * User request switch noodle
3013 view_driver(struct view *view, enum request request)
3017 if (request == REQ_NONE) {
3022 if (request > REQ_NONE) {
3023 open_run_request(request);
3024 /* FIXME: When all views can refresh always do this. */
3025 if (view == VIEW(REQ_VIEW_STATUS) ||
3026 view == VIEW(REQ_VIEW_MAIN) ||
3027 view == VIEW(REQ_VIEW_LOG) ||
3028 view == VIEW(REQ_VIEW_STAGE))
3029 request = REQ_REFRESH;
3034 if (view && view->lines) {
3035 request = view->ops->request(view, request, &view->line[view->lineno]);
3036 if (request == REQ_NONE)
3043 case REQ_MOVE_PAGE_UP:
3044 case REQ_MOVE_PAGE_DOWN:
3045 case REQ_MOVE_FIRST_LINE:
3046 case REQ_MOVE_LAST_LINE:
3047 move_view(view, request);
3050 case REQ_SCROLL_LINE_DOWN:
3051 case REQ_SCROLL_LINE_UP:
3052 case REQ_SCROLL_PAGE_DOWN:
3053 case REQ_SCROLL_PAGE_UP:
3054 scroll_view(view, request);
3057 case REQ_VIEW_BLAME:
3059 report("No file chosen, press %s to open tree view",
3060 get_key(REQ_VIEW_TREE));
3063 open_view(view, request, OPEN_DEFAULT);
3068 report("No file chosen, press %s to open tree view",
3069 get_key(REQ_VIEW_TREE));
3072 open_view(view, request, OPEN_DEFAULT);
3075 case REQ_VIEW_PAGER:
3076 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3077 report("No pager content, press %s to run command from prompt",
3078 get_key(REQ_PROMPT));
3081 open_view(view, request, OPEN_DEFAULT);
3084 case REQ_VIEW_STAGE:
3085 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3086 report("No stage content, press %s to open the status view and choose file",
3087 get_key(REQ_VIEW_STATUS));
3090 open_view(view, request, OPEN_DEFAULT);
3093 case REQ_VIEW_STATUS:
3094 if (opt_is_inside_work_tree == FALSE) {
3095 report("The status view requires a working tree");
3098 open_view(view, request, OPEN_DEFAULT);
3106 open_view(view, request, OPEN_DEFAULT);
3111 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3113 if ((view == VIEW(REQ_VIEW_DIFF) &&
3114 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3115 (view == VIEW(REQ_VIEW_DIFF) &&
3116 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3117 (view == VIEW(REQ_VIEW_STAGE) &&
3118 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3119 (view == VIEW(REQ_VIEW_BLOB) &&
3120 view->parent == VIEW(REQ_VIEW_TREE))) {
3123 view = view->parent;
3124 line = view->lineno;
3125 move_view(view, request);
3126 if (view_is_displayed(view))
3127 update_view_title(view);
3128 if (line != view->lineno)
3129 view->ops->request(view, REQ_ENTER,
3130 &view->line[view->lineno]);
3133 move_view(view, request);
3139 int nviews = displayed_views();
3140 int next_view = (current_view + 1) % nviews;
3142 if (next_view == current_view) {
3143 report("Only one view is displayed");
3147 current_view = next_view;
3148 /* Blur out the title of the previous view. */
3149 update_view_title(view);
3154 report("Refreshing is not yet supported for the %s view", view->name);
3158 if (displayed_views() == 2)
3159 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3162 case REQ_TOGGLE_LINENO:
3163 toggle_view_option(&opt_line_number, "line numbers");
3166 case REQ_TOGGLE_DATE:
3167 toggle_view_option(&opt_date, "date display");
3170 case REQ_TOGGLE_AUTHOR:
3171 toggle_view_option(&opt_author, "author display");
3174 case REQ_TOGGLE_REV_GRAPH:
3175 toggle_view_option(&opt_rev_graph, "revision graph display");
3178 case REQ_TOGGLE_REFS:
3179 toggle_view_option(&opt_show_refs, "reference display");
3183 case REQ_SEARCH_BACK:
3184 search_view(view, request);
3189 find_next(view, request);
3192 case REQ_STOP_LOADING:
3193 for (i = 0; i < ARRAY_SIZE(views); i++) {
3196 report("Stopped loading the %s view", view->name),
3197 end_update(view, TRUE);
3201 case REQ_SHOW_VERSION:
3202 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3205 case REQ_SCREEN_REDRAW:
3206 redraw_display(TRUE);
3210 report("Nothing to edit");
3214 report("Nothing to enter");
3217 case REQ_VIEW_CLOSE:
3218 /* XXX: Mark closed views by letting view->parent point to the
3219 * view itself. Parents to closed view should never be
3222 view->parent->parent != view->parent) {
3223 memset(display, 0, sizeof(display));
3225 display[current_view] = view->parent;
3226 view->parent = view;
3228 redraw_display(FALSE);
3237 report("Unknown key, press 'h' for help");
3246 * View backend utilities
3249 /* Parse author lines where the name may be empty:
3250 * author <email@address.tld> 1138474660 +0100
3253 parse_author_line(char *ident, char *author, size_t authorsize, struct tm *tm)
3255 char *nameend = strchr(ident, '<');
3256 char *emailend = strchr(ident, '>');
3258 if (nameend && emailend)
3259 *nameend = *emailend = 0;
3260 ident = chomp_string(ident);
3263 ident = chomp_string(nameend + 1);
3268 string_ncopy_do(author, authorsize, ident, strlen(ident));
3270 /* Parse epoch and timezone */
3271 if (emailend && emailend[1] == ' ') {
3272 char *secs = emailend + 2;
3273 char *zone = strchr(secs, ' ');
3274 time_t time = (time_t) atol(secs);
3276 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
3280 tz = ('0' - zone[1]) * 60 * 60 * 10;
3281 tz += ('0' - zone[2]) * 60 * 60;
3282 tz += ('0' - zone[3]) * 60;
3283 tz += ('0' - zone[4]) * 60;
3291 gmtime_r(&time, tm);
3295 static enum input_status
3296 select_commit_parent_handler(void *data, char *buf, int c)
3298 size_t parents = *(size_t *) data;
3305 parent = atoi(buf) * 10;
3308 if (parent > parents)
3314 select_commit_parent(const char *id, char rev[SIZEOF_REV])
3316 char buf[SIZEOF_STR * 4];
3317 const char *revlist_argv[] = {
3318 "git", "rev-list", "-1", "--parents", id, NULL
3322 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3323 !*chomp_string(buf) ||
3324 (parents = (strlen(buf) / 40) - 1) < 0) {
3325 report("Failed to get parent information");
3328 } else if (parents == 0) {
3329 report("The selected commit has no parents");
3334 char prompt[SIZEOF_STR];
3337 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3339 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3342 parents = atoi(result);
3345 string_copy_rev(rev, &buf[41 * parents]);
3354 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3356 char *text = line->data;
3358 if (opt_line_number && draw_lineno(view, lineno))
3361 draw_text(view, line->type, text, TRUE);
3366 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3368 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3369 char refbuf[SIZEOF_STR];
3372 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3373 ref = chomp_string(refbuf);
3378 /* This is the only fatal call, since it can "corrupt" the buffer. */
3379 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3386 add_pager_refs(struct view *view, struct line *line)
3388 char buf[SIZEOF_STR];
3389 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3391 size_t bufpos = 0, refpos = 0;
3392 const char *sep = "Refs: ";
3393 bool is_tag = FALSE;
3395 assert(line->type == LINE_COMMIT);
3397 refs = get_refs(commit_id);
3399 if (view == VIEW(REQ_VIEW_DIFF))
3400 goto try_add_describe_ref;
3405 struct ref *ref = refs[refpos];
3406 const char *fmt = ref->tag ? "%s[%s]" :
3407 ref->remote ? "%s<%s>" : "%s%s";
3409 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3414 } while (refs[refpos++]->next);
3416 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3417 try_add_describe_ref:
3418 /* Add <tag>-g<commit_id> "fake" reference. */
3419 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3426 add_line_text(view, buf, LINE_PP_REFS);
3430 pager_read(struct view *view, char *data)
3437 line = add_line_text(view, data, get_line_type(data));
3441 if (line->type == LINE_COMMIT &&
3442 (view == VIEW(REQ_VIEW_DIFF) ||
3443 view == VIEW(REQ_VIEW_LOG)))
3444 add_pager_refs(view, line);
3450 pager_request(struct view *view, enum request request, struct line *line)
3454 if (request != REQ_ENTER)
3457 if (line->type == LINE_COMMIT &&
3458 (view == VIEW(REQ_VIEW_LOG) ||
3459 view == VIEW(REQ_VIEW_PAGER))) {
3460 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3464 /* Always scroll the view even if it was split. That way
3465 * you can use Enter to scroll through the log view and
3466 * split open each commit diff. */
3467 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3469 /* FIXME: A minor workaround. Scrolling the view will call report("")
3470 * but if we are scrolling a non-current view this won't properly
3471 * update the view title. */
3473 update_view_title(view);
3479 pager_grep(struct view *view, struct line *line)
3482 char *text = line->data;
3487 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3494 pager_select(struct view *view, struct line *line)
3496 if (line->type == LINE_COMMIT) {
3497 char *text = (char *)line->data + STRING_SIZE("commit ");
3499 if (view != VIEW(REQ_VIEW_PAGER))
3500 string_copy_rev(view->ref, text);
3501 string_copy_rev(ref_commit, text);
3505 static struct view_ops pager_ops = {
3516 static const char *log_argv[SIZEOF_ARG] = {
3517 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3521 log_request(struct view *view, enum request request, struct line *line)
3526 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3529 return pager_request(view, request, line);
3533 static struct view_ops log_ops = {
3544 static const char *diff_argv[SIZEOF_ARG] = {
3545 "git", "show", "--pretty=fuller", "--no-color", "--root",
3546 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3549 static struct view_ops diff_ops = {
3565 help_open(struct view *view)
3567 char buf[SIZEOF_STR];
3571 if (view->lines > 0)
3574 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3576 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3579 if (req_info[i].request == REQ_NONE)
3582 if (!req_info[i].request) {
3583 add_line_text(view, "", LINE_DEFAULT);
3584 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3588 key = get_key(req_info[i].request);
3590 key = "(no key defined)";
3592 for (bufpos = 0; bufpos <= req_info[i].namelen; bufpos++) {
3593 buf[bufpos] = tolower(req_info[i].name[bufpos]);
3594 if (buf[bufpos] == '_')
3598 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s",
3599 key, buf, req_info[i].help);
3603 add_line_text(view, "", LINE_DEFAULT);
3604 add_line_text(view, "External commands:", LINE_DEFAULT);
3607 for (i = 0; i < run_requests; i++) {
3608 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3615 key = get_key_name(req->key);
3617 key = "(no key defined)";
3619 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3620 if (!string_format_from(buf, &bufpos, "%s%s",
3621 argc ? " " : "", req->argv[argc]))
3624 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3625 keymap_table[req->keymap].name, key, buf);
3631 static struct view_ops help_ops = {
3647 struct tree_stack_entry {
3648 struct tree_stack_entry *prev; /* Entry below this in the stack */
3649 unsigned long lineno; /* Line number to restore */
3650 char *name; /* Position of name in opt_path */
3653 /* The top of the path stack. */
3654 static struct tree_stack_entry *tree_stack = NULL;
3655 unsigned long tree_lineno = 0;
3658 pop_tree_stack_entry(void)
3660 struct tree_stack_entry *entry = tree_stack;
3662 tree_lineno = entry->lineno;
3664 tree_stack = entry->prev;
3669 push_tree_stack_entry(const char *name, unsigned long lineno)
3671 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3672 size_t pathlen = strlen(opt_path);
3677 entry->prev = tree_stack;
3678 entry->name = opt_path + pathlen;
3681 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3682 pop_tree_stack_entry();
3686 /* Move the current line to the first tree entry. */
3688 entry->lineno = lineno;
3691 /* Parse output from git-ls-tree(1):
3693 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3694 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3695 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3696 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3699 #define SIZEOF_TREE_ATTR \
3700 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3702 #define SIZEOF_TREE_MODE \
3703 STRING_SIZE("100644 ")
3705 #define TREE_ID_OFFSET \
3706 STRING_SIZE("100644 blob ")
3709 char id[SIZEOF_REV];
3711 struct tm time; /* Date from the author ident. */
3712 char author[75]; /* Author of the commit. */
3717 tree_path(struct line *line)
3719 return ((struct tree_entry *) line->data)->name;
3724 tree_compare_entry(struct line *line1, struct line *line2)
3726 if (line1->type != line2->type)
3727 return line1->type == LINE_TREE_DIR ? -1 : 1;
3728 return strcmp(tree_path(line1), tree_path(line2));
3731 static struct line *
3732 tree_entry(struct view *view, enum line_type type, const char *path,
3733 const char *mode, const char *id)
3735 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3736 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3738 if (!entry || !line) {
3743 strncpy(entry->name, path, strlen(path));
3745 entry->mode = strtoul(mode, NULL, 8);
3747 string_copy_rev(entry->id, id);
3753 tree_read_date(struct view *view, char *text, bool *read_date)
3755 static char author_name[SIZEOF_STR];
3756 static struct tm author_time;
3758 if (!text && *read_date) {
3763 char *path = *opt_path ? opt_path : ".";
3764 /* Find next entry to process */
3765 const char *log_file[] = {
3766 "git", "log", "--no-color", "--pretty=raw",
3767 "--cc", "--raw", view->id, "--", path, NULL
3771 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3772 report("Failed to load tree data");
3776 done_io(view->pipe);
3781 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3782 parse_author_line(text + STRING_SIZE("author "),
3783 author_name, sizeof(author_name), &author_time);
3785 } else if (*text == ':') {
3787 size_t annotated = 1;
3790 pos = strchr(text, '\t');
3794 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3795 text += strlen(opt_prefix);
3796 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3797 text += strlen(opt_path);
3798 pos = strchr(text, '/');
3802 for (i = 1; i < view->lines; i++) {
3803 struct line *line = &view->line[i];
3804 struct tree_entry *entry = line->data;
3806 annotated += !!*entry->author;
3807 if (*entry->author || strcmp(entry->name, text))
3810 string_copy(entry->author, author_name);
3811 memcpy(&entry->time, &author_time, sizeof(entry->time));
3816 if (annotated == view->lines)
3817 kill_io(view->pipe);
3823 tree_read(struct view *view, char *text)
3825 static bool read_date = FALSE;
3826 struct tree_entry *data;
3827 struct line *entry, *line;
3828 enum line_type type;
3829 size_t textlen = text ? strlen(text) : 0;
3830 char *path = text + SIZEOF_TREE_ATTR;
3832 if (read_date || !text)
3833 return tree_read_date(view, text, &read_date);
3835 if (textlen <= SIZEOF_TREE_ATTR)
3837 if (view->lines == 0 &&
3838 !tree_entry(view, LINE_TREE_PARENT, opt_path, NULL, NULL))
3841 /* Strip the path part ... */
3843 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3844 size_t striplen = strlen(opt_path);
3846 if (pathlen > striplen)
3847 memmove(path, path + striplen,
3848 pathlen - striplen + 1);
3850 /* Insert "link" to parent directory. */
3851 if (view->lines == 1 &&
3852 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3856 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3857 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3862 /* Skip "Directory ..." and ".." line. */
3863 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3864 if (tree_compare_entry(line, entry) <= 0)
3867 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3871 for (; line <= entry; line++)
3872 line->dirty = line->cleareol = 1;
3876 if (tree_lineno > view->lineno) {
3877 view->lineno = tree_lineno;
3885 tree_draw(struct view *view, struct line *line, unsigned int lineno)
3887 struct tree_entry *entry = line->data;
3889 if (line->type == LINE_TREE_PARENT) {
3890 if (draw_text(view, line->type, "Directory path /", TRUE))
3893 char mode[11] = "-r--r--r--";
3895 if (S_ISDIR(entry->mode)) {
3896 mode[3] = mode[6] = mode[9] = 'x';
3899 if (S_ISLNK(entry->mode))
3901 if (entry->mode & S_IWUSR)
3903 if (entry->mode & S_IXUSR)
3905 if (entry->mode & S_IXGRP)
3907 if (entry->mode & S_IXOTH)
3909 if (draw_field(view, LINE_TREE_MODE, mode, 11, TRUE))
3912 if (opt_author && draw_author(view, entry->author))
3915 if (opt_date && draw_date(view, *entry->author ? &entry->time : NULL))
3918 if (draw_text(view, line->type, entry->name, TRUE))
3926 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
3927 int fd = mkstemp(file);
3930 report("Failed to create temporary file");
3931 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
3932 report("Failed to save blob data to file");
3934 open_editor(FALSE, file);
3940 tree_request(struct view *view, enum request request, struct line *line)
3942 enum open_flags flags;
3945 case REQ_VIEW_BLAME:
3946 if (line->type != LINE_TREE_FILE) {
3947 report("Blame only supported for files");
3951 string_copy(opt_ref, view->vid);
3955 if (line->type != LINE_TREE_FILE) {
3956 report("Edit only supported for files");
3957 } else if (!is_head_commit(view->vid)) {
3960 open_editor(TRUE, opt_file);
3966 /* quit view if at top of tree */
3967 return REQ_VIEW_CLOSE;
3970 line = &view->line[1];
3980 /* Cleanup the stack if the tree view is at a different tree. */
3981 while (!*opt_path && tree_stack)
3982 pop_tree_stack_entry();
3984 switch (line->type) {
3986 /* Depending on whether it is a subdir or parent (updir?) link
3987 * mangle the path buffer. */
3988 if (line == &view->line[1] && *opt_path) {
3989 pop_tree_stack_entry();
3992 const char *basename = tree_path(line);
3994 push_tree_stack_entry(basename, view->lineno);
3997 /* Trees and subtrees share the same ID, so they are not not
3998 * unique like blobs. */
3999 flags = OPEN_RELOAD;
4000 request = REQ_VIEW_TREE;
4003 case LINE_TREE_FILE:
4004 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4005 request = REQ_VIEW_BLOB;
4012 open_view(view, request, flags);
4013 if (request == REQ_VIEW_TREE)
4014 view->lineno = tree_lineno;
4020 tree_select(struct view *view, struct line *line)
4022 struct tree_entry *entry = line->data;
4024 if (line->type == LINE_TREE_FILE) {
4025 string_copy_rev(ref_blob, entry->id);
4026 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4028 } else if (line->type != LINE_TREE_DIR) {
4032 string_copy_rev(view->ref, entry->id);
4035 static const char *tree_argv[SIZEOF_ARG] = {
4036 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4039 static struct view_ops tree_ops = {
4051 blob_read(struct view *view, char *line)
4055 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4059 blob_request(struct view *view, enum request request, struct line *line)
4066 return pager_request(view, request, line);
4070 static const char *blob_argv[SIZEOF_ARG] = {
4071 "git", "cat-file", "blob", "%(blob)", NULL
4074 static struct view_ops blob_ops = {
4088 * Loading the blame view is a two phase job:
4090 * 1. File content is read either using opt_file from the
4091 * filesystem or using git-cat-file.
4092 * 2. Then blame information is incrementally added by
4093 * reading output from git-blame.
4096 static const char *blame_head_argv[] = {
4097 "git", "blame", "--incremental", "--", "%(file)", NULL
4100 static const char *blame_ref_argv[] = {
4101 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4104 static const char *blame_cat_file_argv[] = {
4105 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4108 struct blame_commit {
4109 char id[SIZEOF_REV]; /* SHA1 ID. */
4110 char title[128]; /* First line of the commit message. */
4111 char author[75]; /* Author of the commit. */
4112 struct tm time; /* Date from the author ident. */
4113 char filename[128]; /* Name of file. */
4114 bool has_previous; /* Was a "previous" line detected. */
4118 struct blame_commit *commit;
4123 blame_open(struct view *view)
4125 if (*opt_ref || !io_open(&view->io, opt_file)) {
4126 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4130 setup_update(view, opt_file);
4131 string_format(view->ref, "%s ...", opt_file);
4136 static struct blame_commit *
4137 get_blame_commit(struct view *view, const char *id)
4141 for (i = 0; i < view->lines; i++) {
4142 struct blame *blame = view->line[i].data;
4147 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4148 return blame->commit;
4152 struct blame_commit *commit = calloc(1, sizeof(*commit));
4155 string_ncopy(commit->id, id, SIZEOF_REV);
4161 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4163 const char *pos = *posref;
4166 pos = strchr(pos + 1, ' ');
4167 if (!pos || !isdigit(pos[1]))
4169 *number = atoi(pos + 1);
4170 if (*number < min || *number > max)
4177 static struct blame_commit *
4178 parse_blame_commit(struct view *view, const char *text, int *blamed)
4180 struct blame_commit *commit;
4181 struct blame *blame;
4182 const char *pos = text + SIZEOF_REV - 1;
4186 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
4189 if (!parse_number(&pos, &lineno, 1, view->lines) ||
4190 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4193 commit = get_blame_commit(view, text);
4199 struct line *line = &view->line[lineno + group - 1];
4202 blame->commit = commit;
4210 blame_read_file(struct view *view, const char *line, bool *read_file)
4213 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4216 if (view->lines == 0 && !view->parent)
4217 die("No blame exist for %s", view->vid);
4219 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4220 report("Failed to load blame data");
4224 done_io(view->pipe);
4230 size_t linelen = strlen(line);
4231 struct blame *blame = malloc(sizeof(*blame) + linelen);
4233 blame->commit = NULL;
4234 strncpy(blame->text, line, linelen);
4235 blame->text[linelen] = 0;
4236 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4241 match_blame_header(const char *name, char **line)
4243 size_t namelen = strlen(name);
4244 bool matched = !strncmp(name, *line, namelen);
4253 blame_read(struct view *view, char *line)
4255 static struct blame_commit *commit = NULL;
4256 static int blamed = 0;
4257 static time_t author_time;
4258 static bool read_file = TRUE;
4261 return blame_read_file(view, line, &read_file);
4268 string_format(view->ref, "%s", view->vid);
4269 if (view_is_displayed(view)) {
4270 update_view_title(view);
4271 redraw_view_from(view, 0);
4277 commit = parse_blame_commit(view, line, &blamed);
4278 string_format(view->ref, "%s %2d%%", view->vid,
4279 view->lines ? blamed * 100 / view->lines : 0);
4281 } else if (match_blame_header("author ", &line)) {
4282 string_ncopy(commit->author, line, strlen(line));
4284 } else if (match_blame_header("author-time ", &line)) {
4285 author_time = (time_t) atol(line);
4287 } else if (match_blame_header("author-tz ", &line)) {
4290 tz = ('0' - line[1]) * 60 * 60 * 10;
4291 tz += ('0' - line[2]) * 60 * 60;
4292 tz += ('0' - line[3]) * 60;
4293 tz += ('0' - line[4]) * 60;
4299 gmtime_r(&author_time, &commit->time);
4301 } else if (match_blame_header("summary ", &line)) {
4302 string_ncopy(commit->title, line, strlen(line));
4304 } else if (match_blame_header("previous ", &line)) {
4305 commit->has_previous = TRUE;
4307 } else if (match_blame_header("filename ", &line)) {
4308 string_ncopy(commit->filename, line, strlen(line));
4316 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4318 struct blame *blame = line->data;
4319 struct tm *time = NULL;
4320 const char *id = NULL, *author = NULL;
4322 if (blame->commit && *blame->commit->filename) {
4323 id = blame->commit->id;
4324 author = blame->commit->author;
4325 time = &blame->commit->time;
4328 if (opt_date && draw_date(view, time))
4331 if (opt_author && draw_author(view, author))
4334 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4337 if (draw_lineno(view, lineno))
4340 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4345 check_blame_commit(struct blame *blame)
4348 report("Commit data not loaded yet");
4349 else if (!strcmp(blame->commit->id, NULL_ID))
4350 report("No commit exist for the selected line");
4357 blame_request(struct view *view, enum request request, struct line *line)
4359 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4360 struct blame *blame = line->data;
4363 case REQ_VIEW_BLAME:
4364 if (check_blame_commit(blame)) {
4365 string_copy(opt_ref, blame->commit->id);
4366 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4371 if (check_blame_commit(blame) &&
4372 select_commit_parent(blame->commit->id, opt_ref))
4373 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4377 if (!blame->commit) {
4378 report("No commit loaded yet");
4382 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4383 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4386 if (!strcmp(blame->commit->id, NULL_ID)) {
4387 struct view *diff = VIEW(REQ_VIEW_DIFF);
4388 const char *diff_index_argv[] = {
4389 "git", "diff-index", "--root", "--patch-with-stat",
4390 "-C", "-M", "HEAD", "--", view->vid, NULL
4393 if (!blame->commit->has_previous) {
4394 diff_index_argv[1] = "diff";
4395 diff_index_argv[2] = "--no-color";
4396 diff_index_argv[6] = "--";
4397 diff_index_argv[7] = "/dev/null";
4400 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4401 report("Failed to allocate diff command");
4404 flags |= OPEN_PREPARED;
4407 open_view(view, REQ_VIEW_DIFF, flags);
4408 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4409 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4420 blame_grep(struct view *view, struct line *line)
4422 struct blame *blame = line->data;
4423 struct blame_commit *commit = blame->commit;
4426 #define MATCH(text, on) \
4427 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4430 char buf[DATE_COLS + 1];
4432 if (MATCH(commit->title, 1) ||
4433 MATCH(commit->author, opt_author) ||
4434 MATCH(commit->id, opt_date))
4437 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4442 return MATCH(blame->text, 1);
4448 blame_select(struct view *view, struct line *line)
4450 struct blame *blame = line->data;
4451 struct blame_commit *commit = blame->commit;
4456 if (!strcmp(commit->id, NULL_ID))
4457 string_ncopy(ref_commit, "HEAD", 4);
4459 string_copy_rev(ref_commit, commit->id);
4462 static struct view_ops blame_ops = {
4481 char rev[SIZEOF_REV];
4482 char name[SIZEOF_STR];
4486 char rev[SIZEOF_REV];
4487 char name[SIZEOF_STR];
4491 static char status_onbranch[SIZEOF_STR];
4492 static struct status stage_status;
4493 static enum line_type stage_line_type;
4494 static size_t stage_chunks;
4495 static int *stage_chunk;
4497 /* This should work even for the "On branch" line. */
4499 status_has_none(struct view *view, struct line *line)
4501 return line < view->line + view->lines && !line[1].data;
4504 /* Get fields from the diff line:
4505 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4508 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4510 const char *old_mode = buf + 1;
4511 const char *new_mode = buf + 8;
4512 const char *old_rev = buf + 15;
4513 const char *new_rev = buf + 56;
4514 const char *status = buf + 97;
4517 old_mode[-1] != ':' ||
4518 new_mode[-1] != ' ' ||
4519 old_rev[-1] != ' ' ||
4520 new_rev[-1] != ' ' ||
4524 file->status = *status;
4526 string_copy_rev(file->old.rev, old_rev);
4527 string_copy_rev(file->new.rev, new_rev);
4529 file->old.mode = strtoul(old_mode, NULL, 8);
4530 file->new.mode = strtoul(new_mode, NULL, 8);
4532 file->old.name[0] = file->new.name[0] = 0;
4538 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4540 struct status *file = NULL;
4541 struct status *unmerged = NULL;
4545 if (!run_io(&io, argv, NULL, IO_RD))
4548 add_line_data(view, NULL, type);
4550 while ((buf = io_get(&io, 0, TRUE))) {
4552 file = calloc(1, sizeof(*file));
4553 if (!file || !add_line_data(view, file, type))
4557 /* Parse diff info part. */
4559 file->status = status;
4561 string_copy(file->old.rev, NULL_ID);
4563 } else if (!file->status) {
4564 if (!status_get_diff(file, buf, strlen(buf)))
4567 buf = io_get(&io, 0, TRUE);
4571 /* Collapse all 'M'odified entries that follow a
4572 * associated 'U'nmerged entry. */
4573 if (file->status == 'U') {
4576 } else if (unmerged) {
4577 int collapse = !strcmp(buf, unmerged->new.name);
4589 /* Grab the old name for rename/copy. */
4590 if (!*file->old.name &&
4591 (file->status == 'R' || file->status == 'C')) {
4592 string_ncopy(file->old.name, buf, strlen(buf));
4594 buf = io_get(&io, 0, TRUE);
4599 /* git-ls-files just delivers a NUL separated list of
4600 * file names similar to the second half of the
4601 * git-diff-* output. */
4602 string_ncopy(file->new.name, buf, strlen(buf));
4603 if (!*file->old.name)
4604 string_copy(file->old.name, file->new.name);
4608 if (io_error(&io)) {
4614 if (!view->line[view->lines - 1].data)
4615 add_line_data(view, NULL, LINE_STAT_NONE);
4621 /* Don't show unmerged entries in the staged section. */
4622 static const char *status_diff_index_argv[] = {
4623 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4624 "--cached", "-M", "HEAD", NULL
4627 static const char *status_diff_files_argv[] = {
4628 "git", "diff-files", "-z", NULL
4631 static const char *status_list_other_argv[] = {
4632 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4635 static const char *status_list_no_head_argv[] = {
4636 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4639 static const char *update_index_argv[] = {
4640 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4643 /* Restore the previous line number to stay in the context or select a
4644 * line with something that can be updated. */
4646 status_restore(struct view *view)
4648 if (view->p_lineno >= view->lines)
4649 view->p_lineno = view->lines - 1;
4650 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4652 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4655 /* If the above fails, always skip the "On branch" line. */
4656 if (view->p_lineno < view->lines)
4657 view->lineno = view->p_lineno;
4661 if (view->lineno < view->offset)
4662 view->offset = view->lineno;
4663 else if (view->offset + view->height <= view->lineno)
4664 view->offset = view->lineno - view->height + 1;
4666 view->p_restore = FALSE;
4669 /* First parse staged info using git-diff-index(1), then parse unstaged
4670 * info using git-diff-files(1), and finally untracked files using
4671 * git-ls-files(1). */
4673 status_open(struct view *view)
4677 add_line_data(view, NULL, LINE_STAT_HEAD);
4678 if (is_initial_commit())
4679 string_copy(status_onbranch, "Initial commit");
4680 else if (!*opt_head)
4681 string_copy(status_onbranch, "Not currently on any branch");
4682 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4685 run_io_bg(update_index_argv);
4687 if (is_initial_commit()) {
4688 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4690 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4694 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4695 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4698 /* Restore the exact position or use the specialized restore
4700 if (!view->p_restore)
4701 status_restore(view);
4706 status_draw(struct view *view, struct line *line, unsigned int lineno)
4708 struct status *status = line->data;
4709 enum line_type type;
4713 switch (line->type) {
4714 case LINE_STAT_STAGED:
4715 type = LINE_STAT_SECTION;
4716 text = "Changes to be committed:";
4719 case LINE_STAT_UNSTAGED:
4720 type = LINE_STAT_SECTION;
4721 text = "Changed but not updated:";
4724 case LINE_STAT_UNTRACKED:
4725 type = LINE_STAT_SECTION;
4726 text = "Untracked files:";
4729 case LINE_STAT_NONE:
4730 type = LINE_DEFAULT;
4731 text = " (no files)";
4734 case LINE_STAT_HEAD:
4735 type = LINE_STAT_HEAD;
4736 text = status_onbranch;
4743 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4745 buf[0] = status->status;
4746 if (draw_text(view, line->type, buf, TRUE))
4748 type = LINE_DEFAULT;
4749 text = status->new.name;
4752 draw_text(view, type, text, TRUE);
4757 status_enter(struct view *view, struct line *line)
4759 struct status *status = line->data;
4760 const char *oldpath = status ? status->old.name : NULL;
4761 /* Diffs for unmerged entries are empty when passing the new
4762 * path, so leave it empty. */
4763 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4765 enum open_flags split;
4766 struct view *stage = VIEW(REQ_VIEW_STAGE);
4768 if (line->type == LINE_STAT_NONE ||
4769 (!status && line[1].type == LINE_STAT_NONE)) {
4770 report("No file to diff");
4774 switch (line->type) {
4775 case LINE_STAT_STAGED:
4776 if (is_initial_commit()) {
4777 const char *no_head_diff_argv[] = {
4778 "git", "diff", "--no-color", "--patch-with-stat",
4779 "--", "/dev/null", newpath, NULL
4782 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4785 const char *index_show_argv[] = {
4786 "git", "diff-index", "--root", "--patch-with-stat",
4787 "-C", "-M", "--cached", "HEAD", "--",
4788 oldpath, newpath, NULL
4791 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4796 info = "Staged changes to %s";
4798 info = "Staged changes";
4801 case LINE_STAT_UNSTAGED:
4803 const char *files_show_argv[] = {
4804 "git", "diff-files", "--root", "--patch-with-stat",
4805 "-C", "-M", "--", oldpath, newpath, NULL
4808 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4811 info = "Unstaged changes to %s";
4813 info = "Unstaged changes";
4816 case LINE_STAT_UNTRACKED:
4818 report("No file to show");
4822 if (!suffixcmp(status->new.name, -1, "/")) {
4823 report("Cannot display a directory");
4827 if (!prepare_update_file(stage, newpath))
4829 info = "Untracked file %s";
4832 case LINE_STAT_HEAD:
4836 die("line type %d not handled in switch", line->type);
4839 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4840 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
4841 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4843 stage_status = *status;
4845 memset(&stage_status, 0, sizeof(stage_status));
4848 stage_line_type = line->type;
4850 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4857 status_exists(struct status *status, enum line_type type)
4859 struct view *view = VIEW(REQ_VIEW_STATUS);
4860 unsigned long lineno;
4862 for (lineno = 0; lineno < view->lines; lineno++) {
4863 struct line *line = &view->line[lineno];
4864 struct status *pos = line->data;
4866 if (line->type != type)
4868 if (!pos && (!status || !status->status) && line[1].data) {
4869 select_view_line(view, lineno);
4872 if (pos && !strcmp(status->new.name, pos->new.name)) {
4873 select_view_line(view, lineno);
4883 status_update_prepare(struct io *io, enum line_type type)
4885 const char *staged_argv[] = {
4886 "git", "update-index", "-z", "--index-info", NULL
4888 const char *others_argv[] = {
4889 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4893 case LINE_STAT_STAGED:
4894 return run_io(io, staged_argv, opt_cdup, IO_WR);
4896 case LINE_STAT_UNSTAGED:
4897 return run_io(io, others_argv, opt_cdup, IO_WR);
4899 case LINE_STAT_UNTRACKED:
4900 return run_io(io, others_argv, NULL, IO_WR);
4903 die("line type %d not handled in switch", type);
4909 status_update_write(struct io *io, struct status *status, enum line_type type)
4911 char buf[SIZEOF_STR];
4915 case LINE_STAT_STAGED:
4916 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
4919 status->old.name, 0))
4923 case LINE_STAT_UNSTAGED:
4924 case LINE_STAT_UNTRACKED:
4925 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
4930 die("line type %d not handled in switch", type);
4933 return io_write(io, buf, bufsize);
4937 status_update_file(struct status *status, enum line_type type)
4942 if (!status_update_prepare(&io, type))
4945 result = status_update_write(&io, status, type);
4951 status_update_files(struct view *view, struct line *line)
4955 struct line *pos = view->line + view->lines;
4959 if (!status_update_prepare(&io, line->type))
4962 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
4965 for (file = 0, done = 0; result && file < files; line++, file++) {
4966 int almost_done = file * 100 / files;
4968 if (almost_done > done) {
4970 string_format(view->ref, "updating file %u of %u (%d%% done)",
4972 update_view_title(view);
4974 result = status_update_write(&io, line->data, line->type);
4982 status_update(struct view *view)
4984 struct line *line = &view->line[view->lineno];
4986 assert(view->lines);
4989 /* This should work even for the "On branch" line. */
4990 if (line < view->line + view->lines && !line[1].data) {
4991 report("Nothing to update");
4995 if (!status_update_files(view, line + 1)) {
4996 report("Failed to update file status");
5000 } else if (!status_update_file(line->data, line->type)) {
5001 report("Failed to update file status");
5009 status_revert(struct status *status, enum line_type type, bool has_none)
5011 if (!status || type != LINE_STAT_UNSTAGED) {
5012 if (type == LINE_STAT_STAGED) {
5013 report("Cannot revert changes to staged files");
5014 } else if (type == LINE_STAT_UNTRACKED) {
5015 report("Cannot revert changes to untracked files");
5016 } else if (has_none) {
5017 report("Nothing to revert");
5019 report("Cannot revert changes to multiple files");
5024 const char *checkout_argv[] = {
5025 "git", "checkout", "--", status->old.name, NULL
5028 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5030 return run_io_fg(checkout_argv, opt_cdup);
5035 status_request(struct view *view, enum request request, struct line *line)
5037 struct status *status = line->data;
5040 case REQ_STATUS_UPDATE:
5041 if (!status_update(view))
5045 case REQ_STATUS_REVERT:
5046 if (!status_revert(status, line->type, status_has_none(view, line)))
5050 case REQ_STATUS_MERGE:
5051 if (!status || status->status != 'U') {
5052 report("Merging only possible for files with unmerged status ('U').");
5055 open_mergetool(status->new.name);
5061 if (status->status == 'D') {
5062 report("File has been deleted.");
5066 open_editor(status->status != '?', status->new.name);
5069 case REQ_VIEW_BLAME:
5071 string_copy(opt_file, status->new.name);
5077 /* After returning the status view has been split to
5078 * show the stage view. No further reloading is
5080 status_enter(view, line);
5084 /* Simply reload the view. */
5091 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5097 status_select(struct view *view, struct line *line)
5099 struct status *status = line->data;
5100 char file[SIZEOF_STR] = "all files";
5104 if (status && !string_format(file, "'%s'", status->new.name))
5107 if (!status && line[1].type == LINE_STAT_NONE)
5110 switch (line->type) {
5111 case LINE_STAT_STAGED:
5112 text = "Press %s to unstage %s for commit";
5115 case LINE_STAT_UNSTAGED:
5116 text = "Press %s to stage %s for commit";
5119 case LINE_STAT_UNTRACKED:
5120 text = "Press %s to stage %s for addition";
5123 case LINE_STAT_HEAD:
5124 case LINE_STAT_NONE:
5125 text = "Nothing to update";
5129 die("line type %d not handled in switch", line->type);
5132 if (status && status->status == 'U') {
5133 text = "Press %s to resolve conflict in %s";
5134 key = get_key(REQ_STATUS_MERGE);
5137 key = get_key(REQ_STATUS_UPDATE);
5140 string_format(view->ref, text, key, file);
5144 status_grep(struct view *view, struct line *line)
5146 struct status *status = line->data;
5147 enum { S_STATUS, S_NAME, S_END } state;
5154 for (state = S_STATUS; state < S_END; state++) {
5158 case S_NAME: text = status->new.name; break;
5160 buf[0] = status->status;
5168 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5175 static struct view_ops status_ops = {
5188 stage_diff_write(struct io *io, struct line *line, struct line *end)
5190 while (line < end) {
5191 if (!io_write(io, line->data, strlen(line->data)) ||
5192 !io_write(io, "\n", 1))
5195 if (line->type == LINE_DIFF_CHUNK ||
5196 line->type == LINE_DIFF_HEADER)
5203 static struct line *
5204 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5206 for (; view->line < line; line--)
5207 if (line->type == type)
5214 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5216 const char *apply_argv[SIZEOF_ARG] = {
5217 "git", "apply", "--whitespace=nowarn", NULL
5219 struct line *diff_hdr;
5223 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5228 apply_argv[argc++] = "--cached";
5229 if (revert || stage_line_type == LINE_STAT_STAGED)
5230 apply_argv[argc++] = "-R";
5231 apply_argv[argc++] = "-";
5232 apply_argv[argc++] = NULL;
5233 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5236 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5237 !stage_diff_write(&io, chunk, view->line + view->lines))
5241 run_io_bg(update_index_argv);
5243 return chunk ? TRUE : FALSE;
5247 stage_update(struct view *view, struct line *line)
5249 struct line *chunk = NULL;
5251 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5252 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5255 if (!stage_apply_chunk(view, chunk, FALSE)) {
5256 report("Failed to apply chunk");
5260 } else if (!stage_status.status) {
5261 view = VIEW(REQ_VIEW_STATUS);
5263 for (line = view->line; line < view->line + view->lines; line++)
5264 if (line->type == stage_line_type)
5267 if (!status_update_files(view, line + 1)) {
5268 report("Failed to update files");
5272 } else if (!status_update_file(&stage_status, stage_line_type)) {
5273 report("Failed to update file");
5281 stage_revert(struct view *view, struct line *line)
5283 struct line *chunk = NULL;
5285 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5286 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5289 if (!prompt_yesno("Are you sure you want to revert changes?"))
5292 if (!stage_apply_chunk(view, chunk, TRUE)) {
5293 report("Failed to revert chunk");
5299 return status_revert(stage_status.status ? &stage_status : NULL,
5300 stage_line_type, FALSE);
5306 stage_next(struct view *view, struct line *line)
5310 if (!stage_chunks) {
5311 static size_t alloc = 0;
5314 for (line = view->line; line < view->line + view->lines; line++) {
5315 if (line->type != LINE_DIFF_CHUNK)
5318 tmp = realloc_items(stage_chunk, &alloc,
5319 stage_chunks, sizeof(*tmp));
5321 report("Allocation failure");
5326 stage_chunk[stage_chunks++] = line - view->line;
5330 for (i = 0; i < stage_chunks; i++) {
5331 if (stage_chunk[i] > view->lineno) {
5332 do_scroll_view(view, stage_chunk[i] - view->lineno);
5333 report("Chunk %d of %d", i + 1, stage_chunks);
5338 report("No next chunk found");
5342 stage_request(struct view *view, enum request request, struct line *line)
5345 case REQ_STATUS_UPDATE:
5346 if (!stage_update(view, line))
5350 case REQ_STATUS_REVERT:
5351 if (!stage_revert(view, line))
5355 case REQ_STAGE_NEXT:
5356 if (stage_line_type == LINE_STAT_UNTRACKED) {
5357 report("File is untracked; press %s to add",
5358 get_key(REQ_STATUS_UPDATE));
5361 stage_next(view, line);
5365 if (!stage_status.new.name[0])
5367 if (stage_status.status == 'D') {
5368 report("File has been deleted.");
5372 open_editor(stage_status.status != '?', stage_status.new.name);
5376 /* Reload everything ... */
5379 case REQ_VIEW_BLAME:
5380 if (stage_status.new.name[0]) {
5381 string_copy(opt_file, stage_status.new.name);
5387 return pager_request(view, request, line);
5393 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5394 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5396 /* Check whether the staged entry still exists, and close the
5397 * stage view if it doesn't. */
5398 if (!status_exists(&stage_status, stage_line_type)) {
5399 status_restore(VIEW(REQ_VIEW_STATUS));
5400 return REQ_VIEW_CLOSE;
5403 if (stage_line_type == LINE_STAT_UNTRACKED) {
5404 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5405 report("Cannot display a directory");
5409 if (!prepare_update_file(view, stage_status.new.name)) {
5410 report("Failed to open file: %s", strerror(errno));
5414 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5419 static struct view_ops stage_ops = {
5436 char id[SIZEOF_REV]; /* SHA1 ID. */
5437 char title[128]; /* First line of the commit message. */
5438 char author[75]; /* Author of the commit. */
5439 struct tm time; /* Date from the author ident. */
5440 struct ref **refs; /* Repository references. */
5441 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5442 size_t graph_size; /* The width of the graph array. */
5443 bool has_parents; /* Rewritten --parents seen. */
5446 /* Size of rev graph with no "padding" columns */
5447 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5450 struct rev_graph *prev, *next, *parents;
5451 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5453 struct commit *commit;
5455 unsigned int boundary:1;
5458 /* Parents of the commit being visualized. */
5459 static struct rev_graph graph_parents[4];
5461 /* The current stack of revisions on the graph. */
5462 static struct rev_graph graph_stacks[4] = {
5463 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5464 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5465 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5466 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5470 graph_parent_is_merge(struct rev_graph *graph)
5472 return graph->parents->size > 1;
5476 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5478 struct commit *commit = graph->commit;
5480 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5481 commit->graph[commit->graph_size++] = symbol;
5485 clear_rev_graph(struct rev_graph *graph)
5487 graph->boundary = 0;
5488 graph->size = graph->pos = 0;
5489 graph->commit = NULL;
5490 memset(graph->parents, 0, sizeof(*graph->parents));
5494 done_rev_graph(struct rev_graph *graph)
5496 if (graph_parent_is_merge(graph) &&
5497 graph->pos < graph->size - 1 &&
5498 graph->next->size == graph->size + graph->parents->size - 1) {
5499 size_t i = graph->pos + graph->parents->size - 1;
5501 graph->commit->graph_size = i * 2;
5502 while (i < graph->next->size - 1) {
5503 append_to_rev_graph(graph, ' ');
5504 append_to_rev_graph(graph, '\\');
5509 clear_rev_graph(graph);
5513 push_rev_graph(struct rev_graph *graph, const char *parent)
5517 /* "Collapse" duplicate parents lines.
5519 * FIXME: This needs to also update update the drawn graph but
5520 * for now it just serves as a method for pruning graph lines. */
5521 for (i = 0; i < graph->size; i++)
5522 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5525 if (graph->size < SIZEOF_REVITEMS) {
5526 string_copy_rev(graph->rev[graph->size++], parent);
5531 get_rev_graph_symbol(struct rev_graph *graph)
5535 if (graph->boundary)
5536 symbol = REVGRAPH_BOUND;
5537 else if (graph->parents->size == 0)
5538 symbol = REVGRAPH_INIT;
5539 else if (graph_parent_is_merge(graph))
5540 symbol = REVGRAPH_MERGE;
5541 else if (graph->pos >= graph->size)
5542 symbol = REVGRAPH_BRANCH;
5544 symbol = REVGRAPH_COMMIT;
5550 draw_rev_graph(struct rev_graph *graph)
5553 chtype separator, line;
5555 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5556 static struct rev_filler fillers[] = {
5562 chtype symbol = get_rev_graph_symbol(graph);
5563 struct rev_filler *filler;
5566 if (opt_line_graphics)
5567 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5569 filler = &fillers[DEFAULT];
5571 for (i = 0; i < graph->pos; i++) {
5572 append_to_rev_graph(graph, filler->line);
5573 if (graph_parent_is_merge(graph->prev) &&
5574 graph->prev->pos == i)
5575 filler = &fillers[RSHARP];
5577 append_to_rev_graph(graph, filler->separator);
5580 /* Place the symbol for this revision. */
5581 append_to_rev_graph(graph, symbol);
5583 if (graph->prev->size > graph->size)
5584 filler = &fillers[RDIAG];
5586 filler = &fillers[DEFAULT];
5590 for (; i < graph->size; i++) {
5591 append_to_rev_graph(graph, filler->separator);
5592 append_to_rev_graph(graph, filler->line);
5593 if (graph_parent_is_merge(graph->prev) &&
5594 i < graph->prev->pos + graph->parents->size)
5595 filler = &fillers[RSHARP];
5596 if (graph->prev->size > graph->size)
5597 filler = &fillers[LDIAG];
5600 if (graph->prev->size > graph->size) {
5601 append_to_rev_graph(graph, filler->separator);
5602 if (filler->line != ' ')
5603 append_to_rev_graph(graph, filler->line);
5607 /* Prepare the next rev graph */
5609 prepare_rev_graph(struct rev_graph *graph)
5613 /* First, traverse all lines of revisions up to the active one. */
5614 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5615 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5618 push_rev_graph(graph->next, graph->rev[graph->pos]);
5621 /* Interleave the new revision parent(s). */
5622 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5623 push_rev_graph(graph->next, graph->parents->rev[i]);
5625 /* Lastly, put any remaining revisions. */
5626 for (i = graph->pos + 1; i < graph->size; i++)
5627 push_rev_graph(graph->next, graph->rev[i]);
5631 update_rev_graph(struct view *view, struct rev_graph *graph)
5633 /* If this is the finalizing update ... */
5635 prepare_rev_graph(graph);
5637 /* Graph visualization needs a one rev look-ahead,
5638 * so the first update doesn't visualize anything. */
5639 if (!graph->prev->commit)
5642 if (view->lines > 2)
5643 view->line[view->lines - 3].dirty = 1;
5644 if (view->lines > 1)
5645 view->line[view->lines - 2].dirty = 1;
5646 draw_rev_graph(graph->prev);
5647 done_rev_graph(graph->prev->prev);
5655 static const char *main_argv[SIZEOF_ARG] = {
5656 "git", "log", "--no-color", "--pretty=raw", "--parents",
5657 "--topo-order", "%(head)", NULL
5661 main_draw(struct view *view, struct line *line, unsigned int lineno)
5663 struct commit *commit = line->data;
5665 if (!*commit->author)
5668 if (opt_date && draw_date(view, &commit->time))
5671 if (opt_author && draw_author(view, commit->author))
5674 if (opt_rev_graph && commit->graph_size &&
5675 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5678 if (opt_show_refs && commit->refs) {
5682 enum line_type type;
5684 if (commit->refs[i]->head)
5685 type = LINE_MAIN_HEAD;
5686 else if (commit->refs[i]->ltag)
5687 type = LINE_MAIN_LOCAL_TAG;
5688 else if (commit->refs[i]->tag)
5689 type = LINE_MAIN_TAG;
5690 else if (commit->refs[i]->tracked)
5691 type = LINE_MAIN_TRACKED;
5692 else if (commit->refs[i]->remote)
5693 type = LINE_MAIN_REMOTE;
5695 type = LINE_MAIN_REF;
5697 if (draw_text(view, type, "[", TRUE) ||
5698 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5699 draw_text(view, type, "]", TRUE))
5702 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5704 } while (commit->refs[i++]->next);
5707 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5711 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5713 main_read(struct view *view, char *line)
5715 static struct rev_graph *graph = graph_stacks;
5716 enum line_type type;
5717 struct commit *commit;
5722 if (!view->lines && !view->parent)
5723 die("No revisions match the given arguments.");
5724 if (view->lines > 0) {
5725 commit = view->line[view->lines - 1].data;
5726 view->line[view->lines - 1].dirty = 1;
5727 if (!*commit->author) {
5730 graph->commit = NULL;
5733 update_rev_graph(view, graph);
5735 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5736 clear_rev_graph(&graph_stacks[i]);
5740 type = get_line_type(line);
5741 if (type == LINE_COMMIT) {
5742 commit = calloc(1, sizeof(struct commit));
5746 line += STRING_SIZE("commit ");
5748 graph->boundary = 1;
5752 string_copy_rev(commit->id, line);
5753 commit->refs = get_refs(commit->id);
5754 graph->commit = commit;
5755 add_line_data(view, commit, LINE_MAIN_COMMIT);
5757 while ((line = strchr(line, ' '))) {
5759 push_rev_graph(graph->parents, line);
5760 commit->has_parents = TRUE;
5767 commit = view->line[view->lines - 1].data;
5771 if (commit->has_parents)
5773 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5777 parse_author_line(line + STRING_SIZE("author "),
5778 commit->author, sizeof(commit->author),
5780 update_rev_graph(view, graph);
5781 graph = graph->next;
5785 /* Fill in the commit title if it has not already been set. */
5786 if (commit->title[0])
5789 /* Require titles to start with a non-space character at the
5790 * offset used by git log. */
5791 if (strncmp(line, " ", 4))
5794 /* Well, if the title starts with a whitespace character,
5795 * try to be forgiving. Otherwise we end up with no title. */
5796 while (isspace(*line))
5800 /* FIXME: More graceful handling of titles; append "..." to
5801 * shortened titles, etc. */
5803 string_ncopy(commit->title, line, strlen(line));
5804 view->line[view->lines - 1].dirty = 1;
5811 main_request(struct view *view, enum request request, struct line *line)
5813 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5817 open_view(view, REQ_VIEW_DIFF, flags);
5821 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5831 grep_refs(struct ref **refs, regex_t *regex)
5839 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5841 } while (refs[i++]->next);
5847 main_grep(struct view *view, struct line *line)
5849 struct commit *commit = line->data;
5850 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5851 char buf[DATE_COLS + 1];
5854 for (state = S_TITLE; state < S_END; state++) {
5858 case S_TITLE: text = commit->title; break;
5862 text = commit->author;
5867 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5874 if (grep_refs(commit->refs, view->regex) == TRUE)
5881 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5889 main_select(struct view *view, struct line *line)
5891 struct commit *commit = line->data;
5893 string_copy_rev(view->ref, commit->id);
5894 string_copy_rev(ref_commit, view->ref);
5897 static struct view_ops main_ops = {
5910 * Unicode / UTF-8 handling
5912 * NOTE: Much of the following code for dealing with unicode is derived from
5913 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5914 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
5917 /* I've (over)annotated a lot of code snippets because I am not entirely
5918 * confident that the approach taken by this small UTF-8 interface is correct.
5922 unicode_width(unsigned long c)
5925 (c <= 0x115f /* Hangul Jamo */
5928 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
5930 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
5931 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
5932 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
5933 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
5934 || (c >= 0xffe0 && c <= 0xffe6)
5935 || (c >= 0x20000 && c <= 0x2fffd)
5936 || (c >= 0x30000 && c <= 0x3fffd)))
5940 return opt_tab_size;
5945 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
5946 * Illegal bytes are set one. */
5947 static const unsigned char utf8_bytes[256] = {
5948 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,
5949 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,
5950 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,
5951 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,
5952 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,
5953 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,
5954 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,
5955 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,
5958 /* Decode UTF-8 multi-byte representation into a unicode character. */
5959 static inline unsigned long
5960 utf8_to_unicode(const char *string, size_t length)
5962 unsigned long unicode;
5966 unicode = string[0];
5969 unicode = (string[0] & 0x1f) << 6;
5970 unicode += (string[1] & 0x3f);
5973 unicode = (string[0] & 0x0f) << 12;
5974 unicode += ((string[1] & 0x3f) << 6);
5975 unicode += (string[2] & 0x3f);
5978 unicode = (string[0] & 0x0f) << 18;
5979 unicode += ((string[1] & 0x3f) << 12);
5980 unicode += ((string[2] & 0x3f) << 6);
5981 unicode += (string[3] & 0x3f);
5984 unicode = (string[0] & 0x0f) << 24;
5985 unicode += ((string[1] & 0x3f) << 18);
5986 unicode += ((string[2] & 0x3f) << 12);
5987 unicode += ((string[3] & 0x3f) << 6);
5988 unicode += (string[4] & 0x3f);
5991 unicode = (string[0] & 0x01) << 30;
5992 unicode += ((string[1] & 0x3f) << 24);
5993 unicode += ((string[2] & 0x3f) << 18);
5994 unicode += ((string[3] & 0x3f) << 12);
5995 unicode += ((string[4] & 0x3f) << 6);
5996 unicode += (string[5] & 0x3f);
5999 die("Invalid unicode length");
6002 /* Invalid characters could return the special 0xfffd value but NUL
6003 * should be just as good. */
6004 return unicode > 0xffff ? 0 : unicode;
6007 /* Calculates how much of string can be shown within the given maximum width
6008 * and sets trimmed parameter to non-zero value if all of string could not be
6009 * shown. If the reserve flag is TRUE, it will reserve at least one
6010 * trailing character, which can be useful when drawing a delimiter.
6012 * Returns the number of bytes to output from string to satisfy max_width. */
6014 utf8_length(const char *string, int *width, size_t max_width, int *trimmed, bool reserve)
6016 const char *start = string;
6017 const char *end = strchr(string, '\0');
6018 unsigned char last_bytes = 0;
6019 size_t last_ucwidth = 0;
6024 while (string < end) {
6025 int c = *(unsigned char *) string;
6026 unsigned char bytes = utf8_bytes[c];
6028 unsigned long unicode;
6030 if (string + bytes > end)
6033 /* Change representation to figure out whether
6034 * it is a single- or double-width character. */
6036 unicode = utf8_to_unicode(string, bytes);
6037 /* FIXME: Graceful handling of invalid unicode character. */
6041 ucwidth = unicode_width(unicode);
6043 if (*width > max_width) {
6046 if (reserve && *width == max_width) {
6047 string -= last_bytes;
6048 *width -= last_ucwidth;
6055 last_ucwidth = ucwidth;
6058 return string - start;
6066 /* Whether or not the curses interface has been initialized. */
6067 static bool cursed = FALSE;
6069 /* Terminal hacks and workarounds. */
6070 static bool use_scroll_redrawwin;
6071 static bool use_scroll_status_wclear;
6073 /* The status window is used for polling keystrokes. */
6074 static WINDOW *status_win;
6076 /* Reading from the prompt? */
6077 static bool input_mode = FALSE;
6079 static bool status_empty = FALSE;
6081 /* Update status and title window. */
6083 report(const char *msg, ...)
6085 struct view *view = display[current_view];
6091 char buf[SIZEOF_STR];
6094 va_start(args, msg);
6095 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6096 buf[sizeof(buf) - 1] = 0;
6097 buf[sizeof(buf) - 2] = '.';
6098 buf[sizeof(buf) - 3] = '.';
6099 buf[sizeof(buf) - 4] = '.';
6105 if (!status_empty || *msg) {
6108 va_start(args, msg);
6110 wmove(status_win, 0, 0);
6111 if (view->has_scrolled && use_scroll_status_wclear)
6114 vwprintw(status_win, msg, args);
6115 status_empty = FALSE;
6117 status_empty = TRUE;
6119 wclrtoeol(status_win);
6120 wnoutrefresh(status_win);
6125 update_view_title(view);
6128 /* Controls when nodelay should be in effect when polling user input. */
6130 set_nonblocking_input(bool loading)
6132 static unsigned int loading_views;
6134 if ((loading == FALSE && loading_views-- == 1) ||
6135 (loading == TRUE && loading_views++ == 0))
6136 nodelay(status_win, loading);
6145 /* Initialize the curses library */
6146 if (isatty(STDIN_FILENO)) {
6147 cursed = !!initscr();
6150 /* Leave stdin and stdout alone when acting as a pager. */
6151 opt_tty = fopen("/dev/tty", "r+");
6153 die("Failed to open /dev/tty");
6154 cursed = !!newterm(NULL, opt_tty, opt_tty);
6158 die("Failed to initialize curses");
6160 nonl(); /* Tell curses not to do NL->CR/NL on output */
6161 cbreak(); /* Take input chars one at a time, no wait for \n */
6162 noecho(); /* Don't echo input */
6163 leaveok(stdscr, FALSE);
6168 getmaxyx(stdscr, y, x);
6169 status_win = newwin(1, 0, y - 1, 0);
6171 die("Failed to create status window");
6173 /* Enable keyboard mapping */
6174 keypad(status_win, TRUE);
6175 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6177 TABSIZE = opt_tab_size;
6178 if (opt_line_graphics) {
6179 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6182 term = getenv("XTERM_VERSION") ? NULL : getenv("COLORTERM");
6183 if (term && !strcmp(term, "gnome-terminal")) {
6184 /* In the gnome-terminal-emulator, the message from
6185 * scrolling up one line when impossible followed by
6186 * scrolling down one line causes corruption of the
6187 * status line. This is fixed by calling wclear. */
6188 use_scroll_status_wclear = TRUE;
6189 use_scroll_redrawwin = FALSE;
6191 } else if (term && !strcmp(term, "xrvt-xpm")) {
6192 /* No problems with full optimizations in xrvt-(unicode)
6194 use_scroll_status_wclear = use_scroll_redrawwin = FALSE;
6197 /* When scrolling in (u)xterm the last line in the
6198 * scrolling direction will update slowly. */
6199 use_scroll_redrawwin = TRUE;
6200 use_scroll_status_wclear = FALSE;
6205 get_input(int prompt_position)
6208 int i, key, cursor_y, cursor_x;
6210 if (prompt_position)
6214 foreach_view (view, i) {
6216 if (view_is_displayed(view) && view->has_scrolled &&
6217 use_scroll_redrawwin)
6218 redrawwin(view->win);
6219 view->has_scrolled = FALSE;
6222 /* Update the cursor position. */
6223 if (prompt_position) {
6224 getbegyx(status_win, cursor_y, cursor_x);
6225 cursor_x = prompt_position;
6227 view = display[current_view];
6228 getbegyx(view->win, cursor_y, cursor_x);
6229 cursor_x = view->width - 1;
6230 cursor_y += view->lineno - view->offset;
6232 setsyx(cursor_y, cursor_x);
6234 /* Refresh, accept single keystroke of input */
6236 key = wgetch(status_win);
6238 /* wgetch() with nodelay() enabled returns ERR when
6239 * there's no input. */
6242 } else if (key == KEY_RESIZE) {
6245 getmaxyx(stdscr, height, width);
6247 wresize(status_win, 1, width);
6248 mvwin(status_win, height - 1, 0);
6249 wnoutrefresh(status_win);
6251 redraw_display(TRUE);
6261 prompt_input(const char *prompt, input_handler handler, void *data)
6263 enum input_status status = INPUT_OK;
6264 static char buf[SIZEOF_STR];
6269 while (status == INPUT_OK || status == INPUT_SKIP) {
6272 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6273 wclrtoeol(status_win);
6275 key = get_input(pos + 1);
6280 status = pos ? INPUT_STOP : INPUT_CANCEL;
6287 status = INPUT_CANCEL;
6291 status = INPUT_CANCEL;
6295 if (pos >= sizeof(buf)) {
6296 report("Input string too long");
6300 status = handler(data, buf, key);
6301 if (status == INPUT_OK)
6302 buf[pos++] = (char) key;
6306 /* Clear the status window */
6307 status_empty = FALSE;
6310 if (status == INPUT_CANCEL)
6318 static enum input_status
6319 prompt_yesno_handler(void *data, char *buf, int c)
6321 if (c == 'y' || c == 'Y')
6323 if (c == 'n' || c == 'N')
6324 return INPUT_CANCEL;
6329 prompt_yesno(const char *prompt)
6331 char prompt2[SIZEOF_STR];
6333 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6336 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6339 static enum input_status
6340 read_prompt_handler(void *data, char *buf, int c)
6342 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6346 read_prompt(const char *prompt)
6348 return prompt_input(prompt, read_prompt_handler, NULL);
6352 * Repository properties
6355 static struct ref *refs = NULL;
6356 static size_t refs_alloc = 0;
6357 static size_t refs_size = 0;
6359 /* Id <-> ref store */
6360 static struct ref ***id_refs = NULL;
6361 static size_t id_refs_alloc = 0;
6362 static size_t id_refs_size = 0;
6365 compare_refs(const void *ref1_, const void *ref2_)
6367 const struct ref *ref1 = *(const struct ref **)ref1_;
6368 const struct ref *ref2 = *(const struct ref **)ref2_;
6370 if (ref1->tag != ref2->tag)
6371 return ref2->tag - ref1->tag;
6372 if (ref1->ltag != ref2->ltag)
6373 return ref2->ltag - ref2->ltag;
6374 if (ref1->head != ref2->head)
6375 return ref2->head - ref1->head;
6376 if (ref1->tracked != ref2->tracked)
6377 return ref2->tracked - ref1->tracked;
6378 if (ref1->remote != ref2->remote)
6379 return ref2->remote - ref1->remote;
6380 return strcmp(ref1->name, ref2->name);
6383 static struct ref **
6384 get_refs(const char *id)
6386 struct ref ***tmp_id_refs;
6387 struct ref **ref_list = NULL;
6388 size_t ref_list_alloc = 0;
6389 size_t ref_list_size = 0;
6392 for (i = 0; i < id_refs_size; i++)
6393 if (!strcmp(id, id_refs[i][0]->id))
6396 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6401 id_refs = tmp_id_refs;
6403 for (i = 0; i < refs_size; i++) {
6406 if (strcmp(id, refs[i].id))
6409 tmp = realloc_items(ref_list, &ref_list_alloc,
6410 ref_list_size + 1, sizeof(*ref_list));
6418 ref_list[ref_list_size] = &refs[i];
6419 /* XXX: The properties of the commit chains ensures that we can
6420 * safely modify the shared ref. The repo references will
6421 * always be similar for the same id. */
6422 ref_list[ref_list_size]->next = 1;
6428 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6429 ref_list[ref_list_size - 1]->next = 0;
6430 id_refs[id_refs_size++] = ref_list;
6437 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6442 bool remote = FALSE;
6443 bool tracked = FALSE;
6444 bool check_replace = FALSE;
6447 if (!prefixcmp(name, "refs/tags/")) {
6448 if (!suffixcmp(name, namelen, "^{}")) {
6451 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6452 check_replace = TRUE;
6458 namelen -= STRING_SIZE("refs/tags/");
6459 name += STRING_SIZE("refs/tags/");
6461 } else if (!prefixcmp(name, "refs/remotes/")) {
6463 namelen -= STRING_SIZE("refs/remotes/");
6464 name += STRING_SIZE("refs/remotes/");
6465 tracked = !strcmp(opt_remote, name);
6467 } else if (!prefixcmp(name, "refs/heads/")) {
6468 namelen -= STRING_SIZE("refs/heads/");
6469 name += STRING_SIZE("refs/heads/");
6470 head = !strncmp(opt_head, name, namelen);
6472 } else if (!strcmp(name, "HEAD")) {
6473 string_ncopy(opt_head_rev, id, idlen);
6477 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6478 /* it's an annotated tag, replace the previous sha1 with the
6479 * resolved commit id; relies on the fact git-ls-remote lists
6480 * the commit id of an annotated tag right before the commit id
6482 refs[refs_size - 1].ltag = ltag;
6483 string_copy_rev(refs[refs_size - 1].id, id);
6487 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6491 ref = &refs[refs_size++];
6492 ref->name = malloc(namelen + 1);
6496 strncpy(ref->name, name, namelen);
6497 ref->name[namelen] = 0;
6501 ref->remote = remote;
6502 ref->tracked = tracked;
6503 string_copy_rev(ref->id, id);
6511 static const char *ls_remote_argv[SIZEOF_ARG] = {
6512 "git", "ls-remote", ".", NULL
6514 static bool init = FALSE;
6517 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6524 while (refs_size > 0)
6525 free(refs[--refs_size].name);
6526 while (id_refs_size > 0)
6527 free(id_refs[--id_refs_size]);
6529 return run_io_load(ls_remote_argv, "\t", read_ref);
6533 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6535 if (!strcmp(name, "i18n.commitencoding"))
6536 string_ncopy(opt_encoding, value, valuelen);
6538 if (!strcmp(name, "core.editor"))
6539 string_ncopy(opt_editor, value, valuelen);
6541 /* branch.<head>.remote */
6543 !strncmp(name, "branch.", 7) &&
6544 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6545 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6546 string_ncopy(opt_remote, value, valuelen);
6548 if (*opt_head && *opt_remote &&
6549 !strncmp(name, "branch.", 7) &&
6550 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6551 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6552 size_t from = strlen(opt_remote);
6554 if (!prefixcmp(value, "refs/heads/")) {
6555 value += STRING_SIZE("refs/heads/");
6556 valuelen -= STRING_SIZE("refs/heads/");
6559 if (!string_format_from(opt_remote, &from, "/%s", value))
6567 load_git_config(void)
6569 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6571 return run_io_load(config_list_argv, "=", read_repo_config_option);
6575 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6577 if (!opt_git_dir[0]) {
6578 string_ncopy(opt_git_dir, name, namelen);
6580 } else if (opt_is_inside_work_tree == -1) {
6581 /* This can be 3 different values depending on the
6582 * version of git being used. If git-rev-parse does not
6583 * understand --is-inside-work-tree it will simply echo
6584 * the option else either "true" or "false" is printed.
6585 * Default to true for the unknown case. */
6586 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6588 } else if (*name == '.') {
6589 string_ncopy(opt_cdup, name, namelen);
6592 string_ncopy(opt_prefix, name, namelen);
6599 load_repo_info(void)
6601 const char *head_argv[] = {
6602 "git", "symbolic-ref", "HEAD", NULL
6604 const char *rev_parse_argv[] = {
6605 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6606 "--show-cdup", "--show-prefix", NULL
6609 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6610 chomp_string(opt_head);
6611 if (!prefixcmp(opt_head, "refs/heads/")) {
6612 char *offset = opt_head + STRING_SIZE("refs/heads/");
6614 memmove(opt_head, offset, strlen(offset) + 1);
6618 return run_io_load(rev_parse_argv, "=", read_repo_info);
6626 static void __NORETURN
6629 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6635 static void __NORETURN
6636 die(const char *err, ...)
6642 va_start(args, err);
6643 fputs("tig: ", stderr);
6644 vfprintf(stderr, err, args);
6645 fputs("\n", stderr);
6652 warn(const char *msg, ...)
6656 va_start(args, msg);
6657 fputs("tig warning: ", stderr);
6658 vfprintf(stderr, msg, args);
6659 fputs("\n", stderr);
6664 parse_options(int argc, const char *argv[], const char ***run_argv)
6666 enum request request = REQ_VIEW_MAIN;
6667 const char *subcommand;
6668 bool seen_dashdash = FALSE;
6669 /* XXX: This is vulnerable to the user overriding options
6670 * required for the main view parser. */
6671 static const char *custom_argv[SIZEOF_ARG] = {
6672 "git", "log", "--no-color", "--pretty=raw", "--parents",
6673 "--topo-order", NULL
6677 if (!isatty(STDIN_FILENO))
6678 return REQ_VIEW_PAGER;
6681 return REQ_VIEW_MAIN;
6683 subcommand = argv[1];
6684 if (!strcmp(subcommand, "status")) {
6686 warn("ignoring arguments after `%s'", subcommand);
6687 return REQ_VIEW_STATUS;
6689 } else if (!strcmp(subcommand, "blame")) {
6690 if (argc <= 2 || argc > 4)
6691 die("invalid number of options to blame\n\n%s", usage);
6695 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
6699 string_ncopy(opt_file, argv[i], strlen(argv[i]));
6700 return REQ_VIEW_BLAME;
6702 } else if (!strcmp(subcommand, "show")) {
6703 request = REQ_VIEW_DIFF;
6710 custom_argv[1] = subcommand;
6714 for (i = 1 + !!subcommand; i < argc; i++) {
6715 const char *opt = argv[i];
6717 if (seen_dashdash || !strcmp(opt, "--")) {
6718 seen_dashdash = TRUE;
6720 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
6721 printf("tig version %s\n", TIG_VERSION);
6724 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
6725 printf("%s\n", usage);
6729 custom_argv[j++] = opt;
6730 if (j >= ARRAY_SIZE(custom_argv))
6731 die("command too long");
6734 custom_argv[j] = NULL;
6735 *run_argv = custom_argv;
6741 main(int argc, const char *argv[])
6743 const char **run_argv = NULL;
6745 enum request request;
6748 signal(SIGINT, quit);
6750 if (setlocale(LC_ALL, "")) {
6751 char *codeset = nl_langinfo(CODESET);
6753 string_ncopy(opt_codeset, codeset, strlen(codeset));
6756 if (load_repo_info() == ERR)
6757 die("Failed to load repo info.");
6759 if (load_options() == ERR)
6760 die("Failed to load user config.");
6762 if (load_git_config() == ERR)
6763 die("Failed to load repo config.");
6765 request = parse_options(argc, argv, &run_argv);
6766 if (request == REQ_NONE)
6769 /* Require a git repository unless when running in pager mode. */
6770 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6771 die("Not a git repository");
6773 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6776 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6777 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6778 if (opt_iconv == ICONV_NONE)
6779 die("Failed to initialize character set conversion");
6782 if (load_refs() == ERR)
6783 die("Failed to load refs.");
6785 foreach_view (view, i)
6786 argv_from_env(view->ops->argv, view->cmd_env);
6790 if (request == REQ_VIEW_PAGER || run_argv) {
6791 if (request == REQ_VIEW_PAGER)
6792 io_open(&VIEW(request)->io, "");
6793 else if (!prepare_update(VIEW(request), run_argv, NULL, FORMAT_NONE))
6794 die("Failed to format arguments");
6795 open_view(NULL, request, OPEN_PREPARED);
6799 while (view_driver(display[current_view], request)) {
6800 int key = get_input(0);
6802 view = display[current_view];
6803 request = get_keybinding(view->keymap, key);
6805 /* Some low-level request handling. This keeps access to
6806 * status_win restricted. */
6810 char *cmd = read_prompt(":");
6813 struct view *next = VIEW(REQ_VIEW_PAGER);
6814 const char *argv[SIZEOF_ARG] = { "git" };
6817 /* When running random commands, initially show the
6818 * command in the title. However, it maybe later be
6819 * overwritten if a commit line is selected. */
6820 string_ncopy(next->ref, cmd, strlen(cmd));
6822 if (!argv_from_string(argv, &argc, cmd)) {
6823 report("Too many arguments");
6824 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6825 report("Failed to format command");
6827 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6835 case REQ_SEARCH_BACK:
6837 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6838 char *search = read_prompt(prompt);
6841 string_ncopy(opt_search, search, strlen(search));