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 int load_refs(void);
72 static size_t utf8_length(const char **string, size_t col, int *width, size_t max_width, int *trimmed, bool reserve);
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
112 #define SCROLL_INTERVAL 1
116 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
118 #define NULL_ID "0000000000000000000000000000000000000000"
121 #define GIT_CONFIG "config"
124 /* Some ascii-shorthands fitted into the ncurses namespace. */
126 #define KEY_RETURN '\r'
131 char *name; /* Ref name; tag or head names are shortened. */
132 char id[SIZEOF_REV]; /* Commit SHA1 ID */
133 unsigned int head:1; /* Is it the current HEAD? */
134 unsigned int tag:1; /* Is it a tag? */
135 unsigned int ltag:1; /* If so, is the tag local? */
136 unsigned int remote:1; /* Is it a remote ref? */
137 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
138 unsigned int next:1; /* For ref lists: are there more refs? */
141 static struct ref **get_refs(const char *id);
144 FORMAT_ALL, /* Perform replacement in all arguments. */
145 FORMAT_DASH, /* Perform replacement up until "--". */
146 FORMAT_NONE /* No replacement should be performed. */
149 static bool format_argv(const char *dst[], const char *src[], enum format_flags flags);
158 set_from_int_map(struct int_map *map, size_t map_size,
159 int *value, const char *name, int namelen)
164 for (i = 0; i < map_size; i++)
165 if (namelen == map[i].namelen &&
166 !strncasecmp(name, map[i].name, namelen)) {
167 *value = map[i].value;
181 typedef enum input_status (*input_handler)(void *data, char *buf, int c);
183 static char *prompt_input(const char *prompt, input_handler handler, void *data);
184 static bool prompt_yesno(const char *prompt);
191 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
193 if (srclen > dstlen - 1)
196 strncpy(dst, src, srclen);
200 /* Shorthands for safely copying into a fixed buffer. */
202 #define string_copy(dst, src) \
203 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
205 #define string_ncopy(dst, src, srclen) \
206 string_ncopy_do(dst, sizeof(dst), src, srclen)
208 #define string_copy_rev(dst, src) \
209 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
211 #define string_add(dst, from, src) \
212 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
215 string_expand_length(const char *line, int tabsize)
219 for (pos = 0; line[pos]; pos++) {
220 if (line[pos] == '\t' && tabsize > 0)
221 size += tabsize - (size % tabsize);
229 string_expand(char *dst, size_t dstlen, const char *src, int tabsize)
233 for (size = pos = 0; size < dstlen - 1 && src[pos]; pos++) {
234 if (src[pos] == '\t') {
235 size_t expanded = tabsize - (size % tabsize);
237 if (expanded + size >= dstlen - 1)
238 expanded = dstlen - size - 1;
239 memcpy(dst + size, " ", expanded);
242 dst[size++] = src[pos];
250 chomp_string(char *name)
254 while (isspace(*name))
257 namelen = strlen(name) - 1;
258 while (namelen > 0 && isspace(name[namelen]))
265 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
268 size_t pos = bufpos ? *bufpos : 0;
271 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
277 return pos >= bufsize ? FALSE : TRUE;
280 #define string_format(buf, fmt, args...) \
281 string_nformat(buf, sizeof(buf), NULL, fmt, args)
283 #define string_format_from(buf, from, fmt, args...) \
284 string_nformat(buf, sizeof(buf), from, fmt, args)
287 string_enum_compare(const char *str1, const char *str2, int len)
291 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
293 /* Diff-Header == DIFF_HEADER */
294 for (i = 0; i < len; i++) {
295 if (toupper(str1[i]) == toupper(str2[i]))
298 if (string_enum_sep(str1[i]) &&
299 string_enum_sep(str2[i]))
302 return str1[i] - str2[i];
308 #define prefixcmp(str1, str2) \
309 strncmp(str1, str2, STRING_SIZE(str2))
312 suffixcmp(const char *str, int slen, const char *suffix)
314 size_t len = slen >= 0 ? slen : strlen(str);
315 size_t suffixlen = strlen(suffix);
317 return suffixlen < len ? strcmp(str + len - suffixlen, suffix) : -1;
322 argv_from_string(const char *argv[SIZEOF_ARG], int *argc, char *cmd)
326 while (*cmd && *argc < SIZEOF_ARG && (valuelen = strcspn(cmd, " \t"))) {
327 bool advance = cmd[valuelen] != 0;
330 argv[(*argc)++] = chomp_string(cmd);
331 cmd = chomp_string(cmd + valuelen + advance);
334 if (*argc < SIZEOF_ARG)
336 return *argc < SIZEOF_ARG;
340 argv_from_env(const char **argv, const char *name)
342 char *env = argv ? getenv(name) : NULL;
347 if (env && !argv_from_string(argv, &argc, env))
348 die("Too many arguments in the `%s` environment variable", name);
353 * Executing external commands.
357 IO_FD, /* File descriptor based IO. */
358 IO_BG, /* Execute command in the background. */
359 IO_FG, /* Execute command with same std{in,out,err}. */
360 IO_RD, /* Read only fork+exec IO. */
361 IO_WR, /* Write only fork+exec IO. */
362 IO_AP, /* Append fork+exec output to file. */
366 enum io_type type; /* The requested type of pipe. */
367 const char *dir; /* Directory from which to execute. */
368 pid_t pid; /* Pipe for reading or writing. */
369 int pipe; /* Pipe end for reading or writing. */
370 int error; /* Error status. */
371 const char *argv[SIZEOF_ARG]; /* Shell command arguments. */
372 char *buf; /* Read buffer. */
373 size_t bufalloc; /* Allocated buffer size. */
374 size_t bufsize; /* Buffer content size. */
375 char *bufpos; /* Current buffer position. */
376 unsigned int eof:1; /* Has end of file been reached. */
380 reset_io(struct io *io)
384 io->buf = io->bufpos = NULL;
385 io->bufalloc = io->bufsize = 0;
391 init_io(struct io *io, const char *dir, enum io_type type)
399 init_io_rd(struct io *io, const char *argv[], const char *dir,
400 enum format_flags flags)
402 init_io(io, dir, IO_RD);
403 return format_argv(io->argv, argv, flags);
407 io_open(struct io *io, const char *name)
409 init_io(io, NULL, IO_FD);
410 io->pipe = *name ? open(name, O_RDONLY) : STDIN_FILENO;
411 return io->pipe != -1;
415 kill_io(struct io *io)
417 return io->pid == 0 || kill(io->pid, SIGKILL) != -1;
421 done_io(struct io *io)
432 pid_t waiting = waitpid(pid, &status, 0);
437 report("waitpid failed (%s)", strerror(errno));
441 return waiting == pid &&
442 !WIFSIGNALED(status) &&
444 !WEXITSTATUS(status);
451 start_io(struct io *io)
453 int pipefds[2] = { -1, -1 };
455 if (io->type == IO_FD)
458 if ((io->type == IO_RD || io->type == IO_WR) &&
461 else if (io->type == IO_AP)
462 pipefds[1] = io->pipe;
464 if ((io->pid = fork())) {
465 if (pipefds[!(io->type == IO_WR)] != -1)
466 close(pipefds[!(io->type == IO_WR)]);
468 io->pipe = pipefds[!!(io->type == IO_WR)];
473 if (io->type != IO_FG) {
474 int devnull = open("/dev/null", O_RDWR);
475 int readfd = io->type == IO_WR ? pipefds[0] : devnull;
476 int writefd = (io->type == IO_RD || io->type == IO_AP)
477 ? pipefds[1] : devnull;
479 dup2(readfd, STDIN_FILENO);
480 dup2(writefd, STDOUT_FILENO);
481 dup2(devnull, STDERR_FILENO);
484 if (pipefds[0] != -1)
486 if (pipefds[1] != -1)
490 if (io->dir && *io->dir && chdir(io->dir) == -1)
491 die("Failed to change directory: %s", strerror(errno));
493 execvp(io->argv[0], (char *const*) io->argv);
494 die("Failed to execute program: %s", strerror(errno));
497 if (pipefds[!!(io->type == IO_WR)] != -1)
498 close(pipefds[!!(io->type == IO_WR)]);
503 run_io(struct io *io, const char **argv, const char *dir, enum io_type type)
505 init_io(io, dir, type);
506 if (!format_argv(io->argv, argv, FORMAT_NONE))
512 run_io_do(struct io *io)
514 return start_io(io) && done_io(io);
518 run_io_bg(const char **argv)
522 init_io(&io, NULL, IO_BG);
523 if (!format_argv(io.argv, argv, FORMAT_NONE))
525 return run_io_do(&io);
529 run_io_fg(const char **argv, const char *dir)
533 init_io(&io, dir, IO_FG);
534 if (!format_argv(io.argv, argv, FORMAT_NONE))
536 return run_io_do(&io);
540 run_io_append(const char **argv, enum format_flags flags, int fd)
544 init_io(&io, NULL, IO_AP);
546 if (format_argv(io.argv, argv, flags))
547 return run_io_do(&io);
553 run_io_rd(struct io *io, const char **argv, enum format_flags flags)
555 return init_io_rd(io, argv, NULL, flags) && start_io(io);
559 io_eof(struct io *io)
565 io_error(struct io *io)
571 io_strerror(struct io *io)
573 return strerror(io->error);
577 io_can_read(struct io *io)
579 struct timeval tv = { 0, 500 };
583 FD_SET(io->pipe, &fds);
585 return select(io->pipe + 1, &fds, NULL, NULL, &tv) > 0;
589 io_read(struct io *io, void *buf, size_t bufsize)
592 ssize_t readsize = read(io->pipe, buf, bufsize);
594 if (readsize < 0 && (errno == EAGAIN || errno == EINTR))
596 else if (readsize == -1)
598 else if (readsize == 0)
605 io_get(struct io *io, int c, bool can_read)
611 io->buf = io->bufpos = malloc(BUFSIZ);
614 io->bufalloc = BUFSIZ;
619 if (io->bufsize > 0) {
620 eol = memchr(io->bufpos, c, io->bufsize);
622 char *line = io->bufpos;
625 io->bufpos = eol + 1;
626 io->bufsize -= io->bufpos - line;
633 io->bufpos[io->bufsize] = 0;
643 if (io->bufsize > 0 && io->bufpos > io->buf)
644 memmove(io->buf, io->bufpos, io->bufsize);
646 io->bufpos = io->buf;
647 readsize = io_read(io, io->buf + io->bufsize, io->bufalloc - io->bufsize);
650 io->bufsize += readsize;
655 io_write(struct io *io, const void *buf, size_t bufsize)
659 while (!io_error(io) && written < bufsize) {
662 size = write(io->pipe, buf + written, bufsize - written);
663 if (size < 0 && (errno == EAGAIN || errno == EINTR))
671 return written == bufsize;
675 run_io_buf(const char **argv, char buf[], size_t bufsize)
680 if (!run_io_rd(&io, argv, FORMAT_NONE))
683 io.buf = io.bufpos = buf;
684 io.bufalloc = bufsize;
685 error = !io_get(&io, '\n', TRUE) && io_error(&io);
688 return done_io(&io) || error;
692 io_load(struct io *io, const char *separators,
693 int (*read_property)(char *, size_t, char *, size_t))
701 while (state == OK && (name = io_get(io, '\n', TRUE))) {
706 name = chomp_string(name);
707 namelen = strcspn(name, separators);
711 value = chomp_string(name + namelen + 1);
712 valuelen = strlen(value);
719 state = read_property(name, namelen, value, valuelen);
722 if (state != ERR && io_error(io))
730 run_io_load(const char **argv, const char *separators,
731 int (*read_property)(char *, size_t, char *, size_t))
735 return init_io_rd(&io, argv, NULL, FORMAT_NONE)
736 ? io_load(&io, separators, read_property) : ERR;
745 /* XXX: Keep the view request first and in sync with views[]. */ \
746 REQ_GROUP("View switching") \
747 REQ_(VIEW_MAIN, "Show main view"), \
748 REQ_(VIEW_DIFF, "Show diff view"), \
749 REQ_(VIEW_LOG, "Show log view"), \
750 REQ_(VIEW_TREE, "Show tree view"), \
751 REQ_(VIEW_BLOB, "Show blob view"), \
752 REQ_(VIEW_BLAME, "Show blame view"), \
753 REQ_(VIEW_HELP, "Show help page"), \
754 REQ_(VIEW_PAGER, "Show pager view"), \
755 REQ_(VIEW_STATUS, "Show status view"), \
756 REQ_(VIEW_STAGE, "Show stage view"), \
758 REQ_GROUP("View manipulation") \
759 REQ_(ENTER, "Enter current line and scroll"), \
760 REQ_(NEXT, "Move to next"), \
761 REQ_(PREVIOUS, "Move to previous"), \
762 REQ_(PARENT, "Move to parent"), \
763 REQ_(VIEW_NEXT, "Move focus to next view"), \
764 REQ_(REFRESH, "Reload and refresh"), \
765 REQ_(MAXIMIZE, "Maximize the current view"), \
766 REQ_(VIEW_CLOSE, "Close the current view"), \
767 REQ_(QUIT, "Close all views and quit"), \
769 REQ_GROUP("View specific requests") \
770 REQ_(STATUS_UPDATE, "Update file status"), \
771 REQ_(STATUS_REVERT, "Revert file changes"), \
772 REQ_(STATUS_MERGE, "Merge file using external tool"), \
773 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
775 REQ_GROUP("Cursor navigation") \
776 REQ_(MOVE_UP, "Move cursor one line up"), \
777 REQ_(MOVE_DOWN, "Move cursor one line down"), \
778 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
779 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
780 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
781 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
783 REQ_GROUP("Scrolling") \
784 REQ_(SCROLL_LEFT, "Scroll two columns left"), \
785 REQ_(SCROLL_RIGHT, "Scroll two columns right"), \
786 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
787 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
788 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
789 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
791 REQ_GROUP("Searching") \
792 REQ_(SEARCH, "Search the view"), \
793 REQ_(SEARCH_BACK, "Search backwards in the view"), \
794 REQ_(FIND_NEXT, "Find next search match"), \
795 REQ_(FIND_PREV, "Find previous search match"), \
797 REQ_GROUP("Option manipulation") \
798 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
799 REQ_(TOGGLE_DATE, "Toggle date display"), \
800 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
801 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
802 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
805 REQ_(PROMPT, "Bring up the prompt"), \
806 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
807 REQ_(SHOW_VERSION, "Show version information"), \
808 REQ_(STOP_LOADING, "Stop all loading views"), \
809 REQ_(EDIT, "Open in editor"), \
810 REQ_(NONE, "Do nothing")
813 /* User action requests. */
815 #define REQ_GROUP(help)
816 #define REQ_(req, help) REQ_##req
818 /* Offset all requests to avoid conflicts with ncurses getch values. */
819 REQ_OFFSET = KEY_MAX + 1,
826 struct request_info {
827 enum request request;
833 static struct request_info req_info[] = {
834 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
835 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
842 get_request(const char *name)
844 int namelen = strlen(name);
847 for (i = 0; i < ARRAY_SIZE(req_info); i++)
848 if (req_info[i].namelen == namelen &&
849 !string_enum_compare(req_info[i].name, name, namelen))
850 return req_info[i].request;
860 static const char usage[] =
861 "tig " TIG_VERSION " (" __DATE__ ")\n"
863 "Usage: tig [options] [revs] [--] [paths]\n"
864 " or: tig show [options] [revs] [--] [paths]\n"
865 " or: tig blame [rev] path\n"
867 " or: tig < [git command output]\n"
870 " -v, --version Show version and exit\n"
871 " -h, --help Show help message and exit";
873 /* Option and state variables. */
874 static bool opt_date = TRUE;
875 static bool opt_author = TRUE;
876 static bool opt_line_number = FALSE;
877 static bool opt_line_graphics = TRUE;
878 static bool opt_rev_graph = FALSE;
879 static bool opt_show_refs = TRUE;
880 static int opt_num_interval = NUMBER_INTERVAL;
881 static int opt_tab_size = TAB_SIZE;
882 static int opt_author_cols = AUTHOR_COLS-1;
883 static char opt_path[SIZEOF_STR] = "";
884 static char opt_file[SIZEOF_STR] = "";
885 static char opt_ref[SIZEOF_REF] = "";
886 static char opt_head[SIZEOF_REF] = "";
887 static char opt_head_rev[SIZEOF_REV] = "";
888 static char opt_remote[SIZEOF_REF] = "";
889 static char opt_encoding[20] = "UTF-8";
890 static bool opt_utf8 = TRUE;
891 static char opt_codeset[20] = "UTF-8";
892 static iconv_t opt_iconv = ICONV_NONE;
893 static char opt_search[SIZEOF_STR] = "";
894 static char opt_cdup[SIZEOF_STR] = "";
895 static char opt_prefix[SIZEOF_STR] = "";
896 static char opt_git_dir[SIZEOF_STR] = "";
897 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
898 static char opt_editor[SIZEOF_STR] = "";
899 static FILE *opt_tty = NULL;
901 #define is_initial_commit() (!*opt_head_rev)
902 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || !strcmp(opt_head_rev, (rev)))
906 * Line-oriented content detection.
910 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
911 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
912 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
913 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
914 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
915 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
916 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
917 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
918 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
919 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
920 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
921 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
922 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
923 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
924 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
925 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
926 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
927 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
928 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
929 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
930 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
931 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
932 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
933 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
934 LINE(AUTHOR, "author ", COLOR_CYAN, COLOR_DEFAULT, 0), \
935 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
936 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
937 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
938 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
939 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
940 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
941 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
942 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
943 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
944 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
945 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
946 LINE(MAIN_AUTHOR, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
947 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
948 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
949 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
950 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
951 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
952 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
953 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
954 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
955 LINE(TREE_PARENT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD), \
956 LINE(TREE_MODE, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
957 LINE(TREE_DIR, "", COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), \
958 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
959 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
960 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
961 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
962 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
963 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
964 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
965 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
968 #define LINE(type, line, fg, bg, attr) \
976 const char *name; /* Option name. */
977 int namelen; /* Size of option name. */
978 const char *line; /* The start of line to match. */
979 int linelen; /* Size of string to match. */
980 int fg, bg, attr; /* Color and text attributes for the lines. */
983 static struct line_info line_info[] = {
984 #define LINE(type, line, fg, bg, attr) \
985 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
990 static enum line_type
991 get_line_type(const char *line)
993 int linelen = strlen(line);
996 for (type = 0; type < ARRAY_SIZE(line_info); type++)
997 /* Case insensitive search matches Signed-off-by lines better. */
998 if (linelen >= line_info[type].linelen &&
999 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
1002 return LINE_DEFAULT;
1006 get_line_attr(enum line_type type)
1008 assert(type < ARRAY_SIZE(line_info));
1009 return COLOR_PAIR(type) | line_info[type].attr;
1012 static struct line_info *
1013 get_line_info(const char *name)
1015 size_t namelen = strlen(name);
1016 enum line_type type;
1018 for (type = 0; type < ARRAY_SIZE(line_info); type++)
1019 if (namelen == line_info[type].namelen &&
1020 !string_enum_compare(line_info[type].name, name, namelen))
1021 return &line_info[type];
1029 int default_bg = line_info[LINE_DEFAULT].bg;
1030 int default_fg = line_info[LINE_DEFAULT].fg;
1031 enum line_type type;
1035 if (assume_default_colors(default_fg, default_bg) == ERR) {
1036 default_bg = COLOR_BLACK;
1037 default_fg = COLOR_WHITE;
1040 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
1041 struct line_info *info = &line_info[type];
1042 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
1043 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
1045 init_pair(type, fg, bg);
1050 enum line_type type;
1053 unsigned int selected:1;
1054 unsigned int dirty:1;
1055 unsigned int cleareol:1;
1057 void *data; /* User data */
1067 enum request request;
1070 static struct keybinding default_keybindings[] = {
1071 /* View switching */
1072 { 'm', REQ_VIEW_MAIN },
1073 { 'd', REQ_VIEW_DIFF },
1074 { 'l', REQ_VIEW_LOG },
1075 { 't', REQ_VIEW_TREE },
1076 { 'f', REQ_VIEW_BLOB },
1077 { 'B', REQ_VIEW_BLAME },
1078 { 'p', REQ_VIEW_PAGER },
1079 { 'h', REQ_VIEW_HELP },
1080 { 'S', REQ_VIEW_STATUS },
1081 { 'c', REQ_VIEW_STAGE },
1083 /* View manipulation */
1084 { 'q', REQ_VIEW_CLOSE },
1085 { KEY_TAB, REQ_VIEW_NEXT },
1086 { KEY_RETURN, REQ_ENTER },
1087 { KEY_UP, REQ_PREVIOUS },
1088 { KEY_DOWN, REQ_NEXT },
1089 { 'R', REQ_REFRESH },
1090 { KEY_F(5), REQ_REFRESH },
1091 { 'O', REQ_MAXIMIZE },
1093 /* Cursor navigation */
1094 { 'k', REQ_MOVE_UP },
1095 { 'j', REQ_MOVE_DOWN },
1096 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1097 { KEY_END, REQ_MOVE_LAST_LINE },
1098 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1099 { ' ', REQ_MOVE_PAGE_DOWN },
1100 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1101 { 'b', REQ_MOVE_PAGE_UP },
1102 { '-', REQ_MOVE_PAGE_UP },
1105 { KEY_LEFT, REQ_SCROLL_LEFT },
1106 { KEY_RIGHT, REQ_SCROLL_RIGHT },
1107 { KEY_IC, REQ_SCROLL_LINE_UP },
1108 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1109 { 'w', REQ_SCROLL_PAGE_UP },
1110 { 's', REQ_SCROLL_PAGE_DOWN },
1113 { '/', REQ_SEARCH },
1114 { '?', REQ_SEARCH_BACK },
1115 { 'n', REQ_FIND_NEXT },
1116 { 'N', REQ_FIND_PREV },
1120 { 'z', REQ_STOP_LOADING },
1121 { 'v', REQ_SHOW_VERSION },
1122 { 'r', REQ_SCREEN_REDRAW },
1123 { '.', REQ_TOGGLE_LINENO },
1124 { 'D', REQ_TOGGLE_DATE },
1125 { 'A', REQ_TOGGLE_AUTHOR },
1126 { 'g', REQ_TOGGLE_REV_GRAPH },
1127 { 'F', REQ_TOGGLE_REFS },
1128 { ':', REQ_PROMPT },
1129 { 'u', REQ_STATUS_UPDATE },
1130 { '!', REQ_STATUS_REVERT },
1131 { 'M', REQ_STATUS_MERGE },
1132 { '@', REQ_STAGE_NEXT },
1133 { ',', REQ_PARENT },
1137 #define KEYMAP_INFO \
1151 #define KEYMAP_(name) KEYMAP_##name
1156 static struct int_map keymap_table[] = {
1157 #define KEYMAP_(name) { #name, STRING_SIZE(#name), KEYMAP_##name }
1162 #define set_keymap(map, name) \
1163 set_from_int_map(keymap_table, ARRAY_SIZE(keymap_table), map, name, strlen(name))
1165 struct keybinding_table {
1166 struct keybinding *data;
1170 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1173 add_keybinding(enum keymap keymap, enum request request, int key)
1175 struct keybinding_table *table = &keybindings[keymap];
1177 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1179 die("Failed to allocate keybinding");
1180 table->data[table->size].alias = key;
1181 table->data[table->size++].request = request;
1184 /* Looks for a key binding first in the given map, then in the generic map, and
1185 * lastly in the default keybindings. */
1187 get_keybinding(enum keymap keymap, int key)
1191 for (i = 0; i < keybindings[keymap].size; i++)
1192 if (keybindings[keymap].data[i].alias == key)
1193 return keybindings[keymap].data[i].request;
1195 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1196 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1197 return keybindings[KEYMAP_GENERIC].data[i].request;
1199 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1200 if (default_keybindings[i].alias == key)
1201 return default_keybindings[i].request;
1203 return (enum request) key;
1212 static struct key key_table[] = {
1213 { "Enter", KEY_RETURN },
1215 { "Backspace", KEY_BACKSPACE },
1217 { "Escape", KEY_ESC },
1218 { "Left", KEY_LEFT },
1219 { "Right", KEY_RIGHT },
1221 { "Down", KEY_DOWN },
1222 { "Insert", KEY_IC },
1223 { "Delete", KEY_DC },
1225 { "Home", KEY_HOME },
1227 { "PageUp", KEY_PPAGE },
1228 { "PageDown", KEY_NPAGE },
1238 { "F10", KEY_F(10) },
1239 { "F11", KEY_F(11) },
1240 { "F12", KEY_F(12) },
1244 get_key_value(const char *name)
1248 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1249 if (!strcasecmp(key_table[i].name, name))
1250 return key_table[i].value;
1252 if (strlen(name) == 1 && isprint(*name))
1259 get_key_name(int key_value)
1261 static char key_char[] = "'X'";
1262 const char *seq = NULL;
1265 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1266 if (key_table[key].value == key_value)
1267 seq = key_table[key].name;
1271 isprint(key_value)) {
1272 key_char[1] = (char) key_value;
1276 return seq ? seq : "(no key)";
1280 get_key(enum request request)
1282 static char buf[BUFSIZ];
1289 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1290 struct keybinding *keybinding = &default_keybindings[i];
1292 if (keybinding->request != request)
1295 if (!string_format_from(buf, &pos, "%s%s", sep,
1296 get_key_name(keybinding->alias)))
1297 return "Too many keybindings!";
1304 struct run_request {
1307 const char *argv[SIZEOF_ARG];
1310 static struct run_request *run_request;
1311 static size_t run_requests;
1314 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1316 struct run_request *req;
1318 if (argc >= ARRAY_SIZE(req->argv) - 1)
1321 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1326 req = &run_request[run_requests];
1327 req->keymap = keymap;
1329 req->argv[0] = NULL;
1331 if (!format_argv(req->argv, argv, FORMAT_NONE))
1334 return REQ_NONE + ++run_requests;
1337 static struct run_request *
1338 get_run_request(enum request request)
1340 if (request <= REQ_NONE)
1342 return &run_request[request - REQ_NONE - 1];
1346 add_builtin_run_requests(void)
1348 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1349 const char *gc[] = { "git", "gc", NULL };
1356 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1357 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1361 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1364 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1365 if (req != REQ_NONE)
1366 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1371 * User config file handling.
1374 static struct int_map color_map[] = {
1375 #define COLOR_MAP(name) { #name, STRING_SIZE(#name), COLOR_##name }
1387 #define set_color(color, name) \
1388 set_from_int_map(color_map, ARRAY_SIZE(color_map), color, name, strlen(name))
1390 static struct int_map attr_map[] = {
1391 #define ATTR_MAP(name) { #name, STRING_SIZE(#name), A_##name }
1398 ATTR_MAP(UNDERLINE),
1401 #define set_attribute(attr, name) \
1402 set_from_int_map(attr_map, ARRAY_SIZE(attr_map), attr, name, strlen(name))
1404 static int config_lineno;
1405 static bool config_errors;
1406 static const char *config_msg;
1408 /* Wants: object fgcolor bgcolor [attr] */
1410 option_color_command(int argc, const char *argv[])
1412 struct line_info *info;
1414 if (argc != 3 && argc != 4) {
1415 config_msg = "Wrong number of arguments given to color command";
1419 info = get_line_info(argv[0]);
1421 if (!string_enum_compare(argv[0], "main-delim", strlen("main-delim"))) {
1422 info = get_line_info("delimiter");
1424 } else if (!string_enum_compare(argv[0], "main-date", strlen("main-date"))) {
1425 info = get_line_info("date");
1428 config_msg = "Unknown color name";
1433 if (set_color(&info->fg, argv[1]) == ERR ||
1434 set_color(&info->bg, argv[2]) == ERR) {
1435 config_msg = "Unknown color";
1439 if (argc == 4 && set_attribute(&info->attr, argv[3]) == ERR) {
1440 config_msg = "Unknown attribute";
1447 static bool parse_bool(const char *s)
1449 return (!strcmp(s, "1") || !strcmp(s, "true") ||
1450 !strcmp(s, "yes")) ? TRUE : FALSE;
1454 parse_int(const char *s, int default_value, int min, int max)
1456 int value = atoi(s);
1458 return (value < min || value > max) ? default_value : value;
1461 /* Wants: name = value */
1463 option_set_command(int argc, const char *argv[])
1466 config_msg = "Wrong number of arguments given to set command";
1470 if (strcmp(argv[1], "=")) {
1471 config_msg = "No value assigned";
1475 if (!strcmp(argv[0], "show-author")) {
1476 opt_author = parse_bool(argv[2]);
1480 if (!strcmp(argv[0], "show-date")) {
1481 opt_date = parse_bool(argv[2]);
1485 if (!strcmp(argv[0], "show-rev-graph")) {
1486 opt_rev_graph = parse_bool(argv[2]);
1490 if (!strcmp(argv[0], "show-refs")) {
1491 opt_show_refs = parse_bool(argv[2]);
1495 if (!strcmp(argv[0], "show-line-numbers")) {
1496 opt_line_number = parse_bool(argv[2]);
1500 if (!strcmp(argv[0], "line-graphics")) {
1501 opt_line_graphics = parse_bool(argv[2]);
1505 if (!strcmp(argv[0], "line-number-interval")) {
1506 opt_num_interval = parse_int(argv[2], opt_num_interval, 1, 1024);
1510 if (!strcmp(argv[0], "author-width")) {
1511 opt_author_cols = parse_int(argv[2], opt_author_cols, 0, 1024);
1515 if (!strcmp(argv[0], "tab-size")) {
1516 opt_tab_size = parse_int(argv[2], opt_tab_size, 1, 1024);
1520 if (!strcmp(argv[0], "commit-encoding")) {
1521 const char *arg = argv[2];
1522 int arglen = strlen(arg);
1527 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1528 config_msg = "Unmatched quotation";
1531 arg += 1; arglen -= 2;
1533 string_ncopy(opt_encoding, arg, strlen(arg));
1538 config_msg = "Unknown variable name";
1542 /* Wants: mode request key */
1544 option_bind_command(int argc, const char *argv[])
1546 enum request request;
1551 config_msg = "Wrong number of arguments given to bind command";
1555 if (set_keymap(&keymap, argv[0]) == ERR) {
1556 config_msg = "Unknown key map";
1560 key = get_key_value(argv[1]);
1562 config_msg = "Unknown key";
1566 request = get_request(argv[2]);
1567 if (request == REQ_NONE) {
1570 enum request request;
1572 { "cherry-pick", REQ_NONE },
1573 { "screen-resize", REQ_NONE },
1574 { "tree-parent", REQ_PARENT },
1576 size_t namelen = strlen(argv[2]);
1579 for (i = 0; i < ARRAY_SIZE(obsolete); i++) {
1580 if (namelen != strlen(obsolete[i].name) ||
1581 string_enum_compare(obsolete[i].name, argv[2], namelen))
1583 if (obsolete[i].request != REQ_NONE)
1584 add_keybinding(keymap, obsolete[i].request, key);
1585 config_msg = "Obsolete request name";
1589 if (request == REQ_NONE && *argv[2]++ == '!')
1590 request = add_run_request(keymap, key, argc - 2, argv + 2);
1591 if (request == REQ_NONE) {
1592 config_msg = "Unknown request name";
1596 add_keybinding(keymap, request, key);
1602 set_option(const char *opt, char *value)
1604 const char *argv[SIZEOF_ARG];
1607 if (!argv_from_string(argv, &argc, value)) {
1608 config_msg = "Too many option arguments";
1612 if (!strcmp(opt, "color"))
1613 return option_color_command(argc, argv);
1615 if (!strcmp(opt, "set"))
1616 return option_set_command(argc, argv);
1618 if (!strcmp(opt, "bind"))
1619 return option_bind_command(argc, argv);
1621 config_msg = "Unknown option command";
1626 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1631 config_msg = "Internal error";
1633 /* Check for comment markers, since read_properties() will
1634 * only ensure opt and value are split at first " \t". */
1635 optlen = strcspn(opt, "#");
1639 if (opt[optlen] != 0) {
1640 config_msg = "No option value";
1644 /* Look for comment endings in the value. */
1645 size_t len = strcspn(value, "#");
1647 if (len < valuelen) {
1649 value[valuelen] = 0;
1652 status = set_option(opt, value);
1655 if (status == ERR) {
1656 warn("Error on line %d, near '%.*s': %s",
1657 config_lineno, (int) optlen, opt, config_msg);
1658 config_errors = TRUE;
1661 /* Always keep going if errors are encountered. */
1666 load_option_file(const char *path)
1670 /* It's ok that the file doesn't exist. */
1671 if (!io_open(&io, path))
1675 config_errors = FALSE;
1677 if (io_load(&io, " \t", read_option) == ERR ||
1678 config_errors == TRUE)
1679 warn("Errors while loading %s.", path);
1685 const char *home = getenv("HOME");
1686 const char *tigrc_user = getenv("TIGRC_USER");
1687 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1688 char buf[SIZEOF_STR];
1690 add_builtin_run_requests();
1692 if (!tigrc_system) {
1693 if (!string_format(buf, "%s/tigrc", SYSCONFDIR))
1697 load_option_file(tigrc_system);
1700 if (!home || !string_format(buf, "%s/.tigrc", home))
1704 load_option_file(tigrc_user);
1717 /* The display array of active views and the index of the current view. */
1718 static struct view *display[2];
1719 static unsigned int current_view;
1721 #define foreach_displayed_view(view, i) \
1722 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1724 #define displayed_views() (display[1] != NULL ? 2 : 1)
1726 /* Current head and commit ID */
1727 static char ref_blob[SIZEOF_REF] = "";
1728 static char ref_commit[SIZEOF_REF] = "HEAD";
1729 static char ref_head[SIZEOF_REF] = "HEAD";
1732 const char *name; /* View name */
1733 const char *cmd_env; /* Command line set via environment */
1734 const char *id; /* Points to either of ref_{head,commit,blob} */
1736 struct view_ops *ops; /* View operations */
1738 enum keymap keymap; /* What keymap does this view have */
1739 bool git_dir; /* Whether the view requires a git directory. */
1741 char ref[SIZEOF_REF]; /* Hovered commit reference */
1742 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1744 int height, width; /* The width and height of the main window */
1745 WINDOW *win; /* The main window */
1746 WINDOW *title; /* The title window living below the main window */
1749 unsigned long offset; /* Offset of the window top */
1750 unsigned long yoffset; /* Offset from the window side. */
1751 unsigned long lineno; /* Current line number */
1752 unsigned long p_offset; /* Previous offset of the window top */
1753 unsigned long p_yoffset;/* Previous offset from the window side */
1754 unsigned long p_lineno; /* Previous current line number */
1755 bool p_restore; /* Should the previous position be restored. */
1758 char grep[SIZEOF_STR]; /* Search string */
1759 regex_t *regex; /* Pre-compiled regex */
1761 /* If non-NULL, points to the view that opened this view. If this view
1762 * is closed tig will switch back to the parent view. */
1763 struct view *parent;
1766 size_t lines; /* Total number of lines */
1767 struct line *line; /* Line index */
1768 size_t line_alloc; /* Total number of allocated lines */
1769 unsigned int digits; /* Number of digits in the lines member. */
1772 struct line *curline; /* Line currently being drawn. */
1773 enum line_type curtype; /* Attribute currently used for drawing. */
1774 unsigned long col; /* Column when drawing. */
1775 bool has_scrolled; /* View was scrolled. */
1776 bool can_hscroll; /* View can be scrolled horizontally. */
1786 /* What type of content being displayed. Used in the title bar. */
1788 /* Default command arguments. */
1790 /* Open and reads in all view content. */
1791 bool (*open)(struct view *view);
1792 /* Read one line; updates view->line. */
1793 bool (*read)(struct view *view, char *data);
1794 /* Draw one line; @lineno must be < view->height. */
1795 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1796 /* Depending on view handle a special requests. */
1797 enum request (*request)(struct view *view, enum request request, struct line *line);
1798 /* Search for regex in a line. */
1799 bool (*grep)(struct view *view, struct line *line);
1801 void (*select)(struct view *view, struct line *line);
1804 static struct view_ops blame_ops;
1805 static struct view_ops blob_ops;
1806 static struct view_ops diff_ops;
1807 static struct view_ops help_ops;
1808 static struct view_ops log_ops;
1809 static struct view_ops main_ops;
1810 static struct view_ops pager_ops;
1811 static struct view_ops stage_ops;
1812 static struct view_ops status_ops;
1813 static struct view_ops tree_ops;
1815 #define VIEW_STR(name, env, ref, ops, map, git) \
1816 { name, #env, ref, ops, map, git }
1818 #define VIEW_(id, name, ops, git, ref) \
1819 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1822 static struct view views[] = {
1823 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1824 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1825 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1826 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1827 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1828 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1829 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1830 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1831 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1832 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1835 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1836 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1838 #define foreach_view(view, i) \
1839 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1841 #define view_is_displayed(view) \
1842 (view == display[0] || view == display[1])
1849 static int line_graphics[] = {
1850 /* LINE_GRAPHIC_VLINE: */ '|'
1854 set_view_attr(struct view *view, enum line_type type)
1856 if (!view->curline->selected && view->curtype != type) {
1857 wattrset(view->win, get_line_attr(type));
1858 wchgat(view->win, -1, 0, type, NULL);
1859 view->curtype = type;
1864 draw_chars(struct view *view, enum line_type type, const char *string,
1865 int max_len, bool use_tilde)
1869 int trimmed = FALSE;
1870 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1876 len = utf8_length(&string, skip, &col, max_len, &trimmed, use_tilde);
1878 col = len = strlen(string);
1879 if (len > max_len) {
1883 col = len = max_len;
1888 set_view_attr(view, type);
1890 waddnstr(view->win, string, len);
1891 if (trimmed && use_tilde) {
1892 set_view_attr(view, LINE_DELIMITER);
1893 waddch(view->win, '~');
1897 if (view->col + col >= view->width + view->yoffset)
1898 view->can_hscroll = TRUE;
1904 draw_space(struct view *view, enum line_type type, int max, int spaces)
1906 static char space[] = " ";
1909 spaces = MIN(max, spaces);
1911 while (spaces > 0) {
1912 int len = MIN(spaces, sizeof(space) - 1);
1914 col += draw_chars(view, type, space, spaces, FALSE);
1922 draw_lineno(struct view *view, unsigned int lineno)
1924 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1926 int digits3 = view->digits < 3 ? 3 : view->digits;
1927 int max_number = MIN(digits3, STRING_SIZE(number));
1928 int max = view->width - view->col;
1931 if (max < max_number)
1934 lineno += view->offset + 1;
1935 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1936 static char fmt[] = "%1ld";
1938 if (view->digits <= 9)
1939 fmt[1] = '0' + digits3;
1941 if (!string_format(number, fmt, lineno))
1943 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1945 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1948 if (col < max && skip <= col) {
1949 set_view_attr(view, LINE_DEFAULT);
1950 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1955 if (col < max && skip <= col)
1956 col = draw_space(view, LINE_DEFAULT, max - col, 1);
1959 return view->width + view->yoffset <= view->col;
1963 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1965 view->col += draw_chars(view, type, string, view->width + view->yoffset - view->col, trim);
1966 return view->width - view->col <= 0;
1970 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1972 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1973 int max = view->width - view->col;
1979 set_view_attr(view, type);
1980 /* Using waddch() instead of waddnstr() ensures that
1981 * they'll be rendered correctly for the cursor line. */
1982 for (i = skip; i < size; i++)
1983 waddch(view->win, graphic[i]);
1986 if (size < max && skip <= size)
1987 waddch(view->win, ' ');
1990 return view->width - view->col <= 0;
1994 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1996 int max = MIN(view->width - view->col, len);
2000 col = draw_chars(view, type, text, max - 1, trim);
2002 col = draw_space(view, type, max - 1, max - 1);
2005 view->col += draw_space(view, LINE_DEFAULT, max - col, max - col);
2006 return view->width + view->yoffset <= view->col;
2010 draw_date(struct view *view, struct tm *time)
2012 char buf[DATE_COLS];
2017 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
2018 date = timelen ? buf : NULL;
2020 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
2024 draw_author(struct view *view, const char *author)
2026 bool trim = opt_author_cols == 0 || opt_author_cols > 5 || !author;
2029 static char initials[10];
2032 #define is_initial_sep(c) (isspace(c) || ispunct(c) || (c) == '@')
2034 memset(initials, 0, sizeof(initials));
2035 for (pos = 0; *author && pos < opt_author_cols - 1; author++, pos++) {
2036 while (is_initial_sep(*author))
2038 strncpy(&initials[pos], author, sizeof(initials) - 1 - pos);
2039 while (*author && !is_initial_sep(author[1]))
2046 return draw_field(view, LINE_MAIN_AUTHOR, author, opt_author_cols, trim);
2050 draw_view_line(struct view *view, unsigned int lineno)
2053 bool selected = (view->offset + lineno == view->lineno);
2055 assert(view_is_displayed(view));
2057 if (view->offset + lineno >= view->lines)
2060 line = &view->line[view->offset + lineno];
2062 wmove(view->win, lineno, 0);
2064 wclrtoeol(view->win);
2066 view->curline = line;
2067 view->curtype = LINE_NONE;
2068 line->selected = FALSE;
2069 line->dirty = line->cleareol = 0;
2072 set_view_attr(view, LINE_CURSOR);
2073 line->selected = TRUE;
2074 view->ops->select(view, line);
2077 return view->ops->draw(view, line, lineno);
2081 redraw_view_dirty(struct view *view)
2086 for (lineno = 0; lineno < view->height; lineno++) {
2087 if (view->offset + lineno >= view->lines)
2089 if (!view->line[view->offset + lineno].dirty)
2092 if (!draw_view_line(view, lineno))
2098 wnoutrefresh(view->win);
2102 redraw_view_from(struct view *view, int lineno)
2104 assert(0 <= lineno && lineno < view->height);
2107 view->can_hscroll = FALSE;
2109 for (; lineno < view->height; lineno++) {
2110 if (!draw_view_line(view, lineno))
2114 wnoutrefresh(view->win);
2118 redraw_view(struct view *view)
2121 redraw_view_from(view, 0);
2126 update_view_title(struct view *view)
2128 char buf[SIZEOF_STR];
2129 char state[SIZEOF_STR];
2130 size_t bufpos = 0, statelen = 0;
2132 assert(view_is_displayed(view));
2134 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2135 unsigned int view_lines = view->offset + view->height;
2136 unsigned int lines = view->lines
2137 ? MIN(view_lines, view->lines) * 100 / view->lines
2140 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2149 time_t secs = time(NULL) - view->start_time;
2151 /* Three git seconds are a long time ... */
2153 string_format_from(state, &statelen, " loading %lds", secs);
2156 string_format_from(buf, &bufpos, "[%s]", view->name);
2157 if (*view->ref && bufpos < view->width) {
2158 size_t refsize = strlen(view->ref);
2159 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2161 if (minsize < view->width)
2162 refsize = view->width - minsize + 7;
2163 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2166 if (statelen && bufpos < view->width) {
2167 string_format_from(buf, &bufpos, "%s", state);
2170 if (view == display[current_view])
2171 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2173 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2175 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2176 wclrtoeol(view->title);
2177 wnoutrefresh(view->title);
2181 resize_display(void)
2184 struct view *base = display[0];
2185 struct view *view = display[1] ? display[1] : display[0];
2187 /* Setup window dimensions */
2189 getmaxyx(stdscr, base->height, base->width);
2191 /* Make room for the status window. */
2195 /* Horizontal split. */
2196 view->width = base->width;
2197 view->height = SCALE_SPLIT_VIEW(base->height);
2198 base->height -= view->height;
2200 /* Make room for the title bar. */
2204 /* Make room for the title bar. */
2209 foreach_displayed_view (view, i) {
2211 view->win = newwin(view->height, 0, offset, 0);
2213 die("Failed to create %s view", view->name);
2215 scrollok(view->win, FALSE);
2217 view->title = newwin(1, 0, offset + view->height, 0);
2219 die("Failed to create title window");
2222 wresize(view->win, view->height, view->width);
2223 mvwin(view->win, offset, 0);
2224 mvwin(view->title, offset + view->height, 0);
2227 offset += view->height + 1;
2232 redraw_display(bool clear)
2237 foreach_displayed_view (view, i) {
2241 update_view_title(view);
2246 toggle_view_option(bool *option, const char *help)
2249 redraw_display(FALSE);
2250 report("%sabling %s", *option ? "En" : "Dis", help);
2257 /* Scrolling backend */
2259 do_scroll_view(struct view *view, int lines)
2261 bool redraw_current_line = FALSE;
2263 /* The rendering expects the new offset. */
2264 view->offset += lines;
2266 assert(0 <= view->offset && view->offset < view->lines);
2269 /* Move current line into the view. */
2270 if (view->lineno < view->offset) {
2271 view->lineno = view->offset;
2272 redraw_current_line = TRUE;
2273 } else if (view->lineno >= view->offset + view->height) {
2274 view->lineno = view->offset + view->height - 1;
2275 redraw_current_line = TRUE;
2278 assert(view->offset <= view->lineno && view->lineno < view->lines);
2280 /* Redraw the whole screen if scrolling is pointless. */
2281 if (view->height < ABS(lines)) {
2285 int line = lines > 0 ? view->height - lines : 0;
2286 int end = line + ABS(lines);
2288 scrollok(view->win, TRUE);
2289 wscrl(view->win, lines);
2290 scrollok(view->win, FALSE);
2292 while (line < end && draw_view_line(view, line))
2295 if (redraw_current_line)
2296 draw_view_line(view, view->lineno - view->offset);
2297 wnoutrefresh(view->win);
2300 view->has_scrolled = TRUE;
2304 /* Scroll frontend */
2306 scroll_view(struct view *view, enum request request)
2310 assert(view_is_displayed(view));
2313 case REQ_SCROLL_LEFT:
2314 if (view->yoffset == 0) {
2315 report("Cannot scroll beyond the first column");
2318 if (view->yoffset <= SCROLL_INTERVAL)
2321 view->yoffset -= SCROLL_INTERVAL;
2322 redraw_view_from(view, 0);
2325 case REQ_SCROLL_RIGHT:
2326 if (!view->can_hscroll) {
2327 report("Cannot scroll beyond the last column");
2330 view->yoffset += SCROLL_INTERVAL;
2334 case REQ_SCROLL_PAGE_DOWN:
2335 lines = view->height;
2336 case REQ_SCROLL_LINE_DOWN:
2337 if (view->offset + lines > view->lines)
2338 lines = view->lines - view->offset;
2340 if (lines == 0 || view->offset + view->height >= view->lines) {
2341 report("Cannot scroll beyond the last line");
2346 case REQ_SCROLL_PAGE_UP:
2347 lines = view->height;
2348 case REQ_SCROLL_LINE_UP:
2349 if (lines > view->offset)
2350 lines = view->offset;
2353 report("Cannot scroll beyond the first line");
2361 die("request %d not handled in switch", request);
2364 do_scroll_view(view, lines);
2369 move_view(struct view *view, enum request request)
2371 int scroll_steps = 0;
2375 case REQ_MOVE_FIRST_LINE:
2376 steps = -view->lineno;
2379 case REQ_MOVE_LAST_LINE:
2380 steps = view->lines - view->lineno - 1;
2383 case REQ_MOVE_PAGE_UP:
2384 steps = view->height > view->lineno
2385 ? -view->lineno : -view->height;
2388 case REQ_MOVE_PAGE_DOWN:
2389 steps = view->lineno + view->height >= view->lines
2390 ? view->lines - view->lineno - 1 : view->height;
2402 die("request %d not handled in switch", request);
2405 if (steps <= 0 && view->lineno == 0) {
2406 report("Cannot move beyond the first line");
2409 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2410 report("Cannot move beyond the last line");
2414 /* Move the current line */
2415 view->lineno += steps;
2416 assert(0 <= view->lineno && view->lineno < view->lines);
2418 /* Check whether the view needs to be scrolled */
2419 if (view->lineno < view->offset ||
2420 view->lineno >= view->offset + view->height) {
2421 scroll_steps = steps;
2422 if (steps < 0 && -steps > view->offset) {
2423 scroll_steps = -view->offset;
2425 } else if (steps > 0) {
2426 if (view->lineno == view->lines - 1 &&
2427 view->lines > view->height) {
2428 scroll_steps = view->lines - view->offset - 1;
2429 if (scroll_steps >= view->height)
2430 scroll_steps -= view->height - 1;
2435 if (!view_is_displayed(view)) {
2436 view->offset += scroll_steps;
2437 assert(0 <= view->offset && view->offset < view->lines);
2438 view->ops->select(view, &view->line[view->lineno]);
2442 /* Repaint the old "current" line if we be scrolling */
2443 if (ABS(steps) < view->height)
2444 draw_view_line(view, view->lineno - steps - view->offset);
2447 do_scroll_view(view, scroll_steps);
2451 /* Draw the current line */
2452 draw_view_line(view, view->lineno - view->offset);
2454 wnoutrefresh(view->win);
2463 static void search_view(struct view *view, enum request request);
2466 select_view_line(struct view *view, unsigned long lineno)
2468 if (lineno - view->offset >= view->height) {
2469 view->offset = lineno;
2470 view->lineno = lineno;
2471 if (view_is_displayed(view))
2475 unsigned long old_lineno = view->lineno - view->offset;
2477 view->lineno = lineno;
2478 if (view_is_displayed(view)) {
2479 draw_view_line(view, old_lineno);
2480 draw_view_line(view, view->lineno - view->offset);
2481 wnoutrefresh(view->win);
2483 view->ops->select(view, &view->line[view->lineno]);
2489 find_next(struct view *view, enum request request)
2491 unsigned long lineno = view->lineno;
2496 report("No previous search");
2498 search_view(view, request);
2508 case REQ_SEARCH_BACK:
2517 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2518 lineno += direction;
2520 /* Note, lineno is unsigned long so will wrap around in which case it
2521 * will become bigger than view->lines. */
2522 for (; lineno < view->lines; lineno += direction) {
2523 if (view->ops->grep(view, &view->line[lineno])) {
2524 select_view_line(view, lineno);
2525 report("Line %ld matches '%s'", lineno + 1, view->grep);
2530 report("No match found for '%s'", view->grep);
2534 search_view(struct view *view, enum request request)
2539 regfree(view->regex);
2542 view->regex = calloc(1, sizeof(*view->regex));
2547 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2548 if (regex_err != 0) {
2549 char buf[SIZEOF_STR] = "unknown error";
2551 regerror(regex_err, view->regex, buf, sizeof(buf));
2552 report("Search failed: %s", buf);
2556 string_copy(view->grep, opt_search);
2558 find_next(view, request);
2562 * Incremental updating
2566 reset_view(struct view *view)
2570 for (i = 0; i < view->lines; i++)
2571 free(view->line[i].data);
2574 view->p_offset = view->offset;
2575 view->p_yoffset = view->yoffset;
2576 view->p_lineno = view->lineno;
2583 view->line_alloc = 0;
2585 view->update_secs = 0;
2589 free_argv(const char *argv[])
2593 for (argc = 0; argv[argc]; argc++)
2594 free((void *) argv[argc]);
2598 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2600 char buf[SIZEOF_STR];
2602 bool noreplace = flags == FORMAT_NONE;
2604 free_argv(dst_argv);
2606 for (argc = 0; src_argv[argc]; argc++) {
2607 const char *arg = src_argv[argc];
2611 char *next = strstr(arg, "%(");
2612 int len = next - arg;
2615 if (!next || noreplace) {
2616 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2621 } else if (!prefixcmp(next, "%(directory)")) {
2624 } else if (!prefixcmp(next, "%(file)")) {
2627 } else if (!prefixcmp(next, "%(ref)")) {
2628 value = *opt_ref ? opt_ref : "HEAD";
2630 } else if (!prefixcmp(next, "%(head)")) {
2633 } else if (!prefixcmp(next, "%(commit)")) {
2636 } else if (!prefixcmp(next, "%(blob)")) {
2640 report("Unknown replacement: `%s`", next);
2644 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2647 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2650 dst_argv[argc] = strdup(buf);
2651 if (!dst_argv[argc])
2655 dst_argv[argc] = NULL;
2657 return src_argv[argc] == NULL;
2661 restore_view_position(struct view *view)
2663 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2666 /* Changing the view position cancels the restoring. */
2667 /* FIXME: Changing back to the first line is not detected. */
2668 if (view->offset != 0 || view->lineno != 0) {
2669 view->p_restore = FALSE;
2673 if (view->p_lineno >= view->lines) {
2674 view->p_lineno = view->lines > 0 ? view->lines - 1 : 0;
2675 if (view->p_offset >= view->p_lineno) {
2676 unsigned long half = view->height / 2;
2678 if (view->p_lineno > half)
2679 view->p_offset = view->p_lineno - half;
2685 if (view_is_displayed(view) &&
2686 view->offset != view->p_offset &&
2687 view->lineno != view->p_lineno)
2690 view->offset = view->p_offset;
2691 view->yoffset = view->p_yoffset;
2692 view->lineno = view->p_lineno;
2693 view->p_restore = FALSE;
2699 end_update(struct view *view, bool force)
2703 while (!view->ops->read(view, NULL))
2706 set_nonblocking_input(FALSE);
2708 kill_io(view->pipe);
2709 done_io(view->pipe);
2714 setup_update(struct view *view, const char *vid)
2716 set_nonblocking_input(TRUE);
2718 string_copy_rev(view->vid, vid);
2719 view->pipe = &view->io;
2720 view->start_time = time(NULL);
2724 prepare_update(struct view *view, const char *argv[], const char *dir,
2725 enum format_flags flags)
2728 end_update(view, TRUE);
2729 return init_io_rd(&view->io, argv, dir, flags);
2733 prepare_update_file(struct view *view, const char *name)
2736 end_update(view, TRUE);
2737 return io_open(&view->io, name);
2741 begin_update(struct view *view, bool refresh)
2744 end_update(view, TRUE);
2747 if (!start_io(&view->io))
2751 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2754 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2757 /* Put the current ref_* value to the view title ref
2758 * member. This is needed by the blob view. Most other
2759 * views sets it automatically after loading because the
2760 * first line is a commit line. */
2761 string_copy_rev(view->ref, view->id);
2764 setup_update(view, view->id);
2769 #define ITEM_CHUNK_SIZE 256
2771 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2773 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2774 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2776 if (mem == NULL || num_chunks != num_chunks_new) {
2777 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2778 mem = realloc(mem, *size * item_size);
2784 static struct line *
2785 realloc_lines(struct view *view, size_t line_size)
2787 size_t alloc = view->line_alloc;
2788 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2789 sizeof(*view->line));
2795 view->line_alloc = alloc;
2800 update_view(struct view *view)
2802 char out_buffer[BUFSIZ * 2];
2804 /* Clear the view and redraw everything since the tree sorting
2805 * might have rearranged things. */
2806 bool redraw = view->lines == 0;
2807 bool can_read = TRUE;
2812 if (!io_can_read(view->pipe)) {
2813 if (view->lines == 0) {
2814 time_t secs = time(NULL) - view->start_time;
2816 if (secs > 1 && secs > view->update_secs) {
2817 if (view->update_secs == 0)
2819 update_view_title(view);
2820 view->update_secs = secs;
2826 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2827 if (opt_iconv != ICONV_NONE) {
2828 ICONV_CONST char *inbuf = line;
2829 size_t inlen = strlen(line) + 1;
2831 char *outbuf = out_buffer;
2832 size_t outlen = sizeof(out_buffer);
2836 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2837 if (ret != (size_t) -1)
2841 if (!view->ops->read(view, line)) {
2842 report("Allocation failure");
2843 end_update(view, TRUE);
2849 unsigned long lines = view->lines;
2852 for (digits = 0; lines; digits++)
2855 /* Keep the displayed view in sync with line number scaling. */
2856 if (digits != view->digits) {
2857 view->digits = digits;
2858 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2863 if (io_error(view->pipe)) {
2864 report("Failed to read: %s", io_strerror(view->pipe));
2865 end_update(view, TRUE);
2867 } else if (io_eof(view->pipe)) {
2869 end_update(view, FALSE);
2872 if (restore_view_position(view))
2875 if (!view_is_displayed(view))
2879 redraw_view_from(view, 0);
2881 redraw_view_dirty(view);
2883 /* Update the title _after_ the redraw so that if the redraw picks up a
2884 * commit reference in view->ref it'll be available here. */
2885 update_view_title(view);
2889 static struct line *
2890 add_line_data(struct view *view, void *data, enum line_type type)
2894 if (!realloc_lines(view, view->lines + 1))
2897 line = &view->line[view->lines++];
2898 memset(line, 0, sizeof(*line));
2906 static struct line *
2907 add_line_text(struct view *view, const char *text, enum line_type type)
2909 char *data = text ? strdup(text) : NULL;
2911 return data ? add_line_data(view, data, type) : NULL;
2914 static struct line *
2915 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2917 char buf[SIZEOF_STR];
2920 va_start(args, fmt);
2921 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2925 return buf[0] ? add_line_text(view, buf, type) : NULL;
2933 OPEN_DEFAULT = 0, /* Use default view switching. */
2934 OPEN_SPLIT = 1, /* Split current view. */
2935 OPEN_BACKGROUNDED = 2, /* Backgrounded. */
2936 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2937 OPEN_NOMAXIMIZE = 8, /* Do not maximize the current view. */
2938 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2939 OPEN_PREPARED = 32, /* Open already prepared command. */
2943 open_view(struct view *prev, enum request request, enum open_flags flags)
2945 bool backgrounded = !!(flags & OPEN_BACKGROUNDED);
2946 bool split = !!(flags & OPEN_SPLIT);
2947 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2948 bool nomaximize = !!(flags & (OPEN_NOMAXIMIZE | OPEN_REFRESH));
2949 struct view *view = VIEW(request);
2950 int nviews = displayed_views();
2951 struct view *base_view = display[0];
2953 if (view == prev && nviews == 1 && !reload) {
2954 report("Already in %s view", view->name);
2958 if (view->git_dir && !opt_git_dir[0]) {
2959 report("The %s view is disabled in pager view", view->name);
2967 } else if (!nomaximize) {
2968 /* Maximize the current view. */
2969 memset(display, 0, sizeof(display));
2971 display[current_view] = view;
2974 /* Resize the view when switching between split- and full-screen,
2975 * or when switching between two different full-screen views. */
2976 if (nviews != displayed_views() ||
2977 (nviews == 1 && base_view != display[0]))
2980 if (view->ops->open) {
2982 end_update(view, TRUE);
2983 if (!view->ops->open(view)) {
2984 report("Failed to load %s view", view->name);
2987 restore_view_position(view);
2989 } else if ((reload || strcmp(view->vid, view->id)) &&
2990 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2991 report("Failed to load %s view", view->name);
2995 if (split && prev->lineno - prev->offset >= prev->height) {
2996 /* Take the title line into account. */
2997 int lines = prev->lineno - prev->offset - prev->height + 1;
2999 /* Scroll the view that was split if the current line is
3000 * outside the new limited view. */
3001 do_scroll_view(prev, lines);
3004 if (prev && view != prev) {
3005 if (split && !backgrounded) {
3006 /* "Blur" the previous view. */
3007 update_view_title(prev);
3010 view->parent = prev;
3013 if (view->pipe && view->lines == 0) {
3014 /* Clear the old view and let the incremental updating refill
3017 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
3019 } else if (view_is_displayed(view)) {
3024 /* If the view is backgrounded the above calls to report()
3025 * won't redraw the view title. */
3027 update_view_title(view);
3031 open_external_viewer(const char *argv[], const char *dir)
3033 def_prog_mode(); /* save current tty modes */
3034 endwin(); /* restore original tty modes */
3035 run_io_fg(argv, dir);
3036 fprintf(stderr, "Press Enter to continue");
3039 redraw_display(TRUE);
3043 open_mergetool(const char *file)
3045 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
3047 open_external_viewer(mergetool_argv, opt_cdup);
3051 open_editor(bool from_root, const char *file)
3053 const char *editor_argv[] = { "vi", file, NULL };
3056 editor = getenv("GIT_EDITOR");
3057 if (!editor && *opt_editor)
3058 editor = opt_editor;
3060 editor = getenv("VISUAL");
3062 editor = getenv("EDITOR");
3066 editor_argv[0] = editor;
3067 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3071 open_run_request(enum request request)
3073 struct run_request *req = get_run_request(request);
3074 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3077 report("Unknown run request");
3081 if (format_argv(argv, req->argv, FORMAT_ALL))
3082 open_external_viewer(argv, NULL);
3087 * User request switch noodle
3091 view_driver(struct view *view, enum request request)
3095 if (request == REQ_NONE) {
3100 if (request > REQ_NONE) {
3101 open_run_request(request);
3102 /* FIXME: When all views can refresh always do this. */
3103 if (view == VIEW(REQ_VIEW_STATUS) ||
3104 view == VIEW(REQ_VIEW_MAIN) ||
3105 view == VIEW(REQ_VIEW_LOG) ||
3106 view == VIEW(REQ_VIEW_STAGE))
3107 request = REQ_REFRESH;
3112 if (view && view->lines) {
3113 request = view->ops->request(view, request, &view->line[view->lineno]);
3114 if (request == REQ_NONE)
3121 case REQ_MOVE_PAGE_UP:
3122 case REQ_MOVE_PAGE_DOWN:
3123 case REQ_MOVE_FIRST_LINE:
3124 case REQ_MOVE_LAST_LINE:
3125 move_view(view, request);
3128 case REQ_SCROLL_LEFT:
3129 case REQ_SCROLL_RIGHT:
3130 case REQ_SCROLL_LINE_DOWN:
3131 case REQ_SCROLL_LINE_UP:
3132 case REQ_SCROLL_PAGE_DOWN:
3133 case REQ_SCROLL_PAGE_UP:
3134 scroll_view(view, request);
3137 case REQ_VIEW_BLAME:
3139 report("No file chosen, press %s to open tree view",
3140 get_key(REQ_VIEW_TREE));
3143 open_view(view, request, OPEN_DEFAULT);
3148 report("No file chosen, press %s to open tree view",
3149 get_key(REQ_VIEW_TREE));
3152 open_view(view, request, OPEN_DEFAULT);
3155 case REQ_VIEW_PAGER:
3156 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3157 report("No pager content, press %s to run command from prompt",
3158 get_key(REQ_PROMPT));
3161 open_view(view, request, OPEN_DEFAULT);
3164 case REQ_VIEW_STAGE:
3165 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3166 report("No stage content, press %s to open the status view and choose file",
3167 get_key(REQ_VIEW_STATUS));
3170 open_view(view, request, OPEN_DEFAULT);
3173 case REQ_VIEW_STATUS:
3174 if (opt_is_inside_work_tree == FALSE) {
3175 report("The status view requires a working tree");
3178 open_view(view, request, OPEN_DEFAULT);
3186 open_view(view, request, OPEN_DEFAULT);
3191 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3193 if ((view == VIEW(REQ_VIEW_DIFF) &&
3194 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3195 (view == VIEW(REQ_VIEW_DIFF) &&
3196 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3197 (view == VIEW(REQ_VIEW_STAGE) &&
3198 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3199 (view == VIEW(REQ_VIEW_BLOB) &&
3200 view->parent == VIEW(REQ_VIEW_TREE))) {
3203 view = view->parent;
3204 line = view->lineno;
3205 move_view(view, request);
3206 if (view_is_displayed(view))
3207 update_view_title(view);
3208 if (line != view->lineno)
3209 view->ops->request(view, REQ_ENTER,
3210 &view->line[view->lineno]);
3213 move_view(view, request);
3219 int nviews = displayed_views();
3220 int next_view = (current_view + 1) % nviews;
3222 if (next_view == current_view) {
3223 report("Only one view is displayed");
3227 current_view = next_view;
3228 /* Blur out the title of the previous view. */
3229 update_view_title(view);
3234 report("Refreshing is not yet supported for the %s view", view->name);
3238 if (displayed_views() == 2)
3239 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3242 case REQ_TOGGLE_LINENO:
3243 toggle_view_option(&opt_line_number, "line numbers");
3246 case REQ_TOGGLE_DATE:
3247 toggle_view_option(&opt_date, "date display");
3250 case REQ_TOGGLE_AUTHOR:
3251 toggle_view_option(&opt_author, "author display");
3254 case REQ_TOGGLE_REV_GRAPH:
3255 toggle_view_option(&opt_rev_graph, "revision graph display");
3258 case REQ_TOGGLE_REFS:
3259 toggle_view_option(&opt_show_refs, "reference display");
3263 case REQ_SEARCH_BACK:
3264 search_view(view, request);
3269 find_next(view, request);
3272 case REQ_STOP_LOADING:
3273 for (i = 0; i < ARRAY_SIZE(views); i++) {
3276 report("Stopped loading the %s view", view->name),
3277 end_update(view, TRUE);
3281 case REQ_SHOW_VERSION:
3282 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3285 case REQ_SCREEN_REDRAW:
3286 redraw_display(TRUE);
3290 report("Nothing to edit");
3294 report("Nothing to enter");
3297 case REQ_VIEW_CLOSE:
3298 /* XXX: Mark closed views by letting view->parent point to the
3299 * view itself. Parents to closed view should never be
3302 view->parent->parent != view->parent) {
3303 memset(display, 0, sizeof(display));
3305 display[current_view] = view->parent;
3306 view->parent = view;
3308 redraw_display(FALSE);
3317 report("Unknown key, press 'h' for help");
3326 * View backend utilities
3329 /* Parse author lines where the name may be empty:
3330 * author <email@address.tld> 1138474660 +0100
3333 parse_author_line(char *ident, char *author, size_t authorsize, struct tm *tm)
3335 char *nameend = strchr(ident, '<');
3336 char *emailend = strchr(ident, '>');
3338 if (nameend && emailend)
3339 *nameend = *emailend = 0;
3340 ident = chomp_string(ident);
3343 ident = chomp_string(nameend + 1);
3348 string_ncopy_do(author, authorsize, ident, strlen(ident));
3350 /* Parse epoch and timezone */
3351 if (emailend && emailend[1] == ' ') {
3352 char *secs = emailend + 2;
3353 char *zone = strchr(secs, ' ');
3354 time_t time = (time_t) atol(secs);
3356 if (zone && strlen(zone) == STRING_SIZE(" +0700")) {
3360 tz = ('0' - zone[1]) * 60 * 60 * 10;
3361 tz += ('0' - zone[2]) * 60 * 60;
3362 tz += ('0' - zone[3]) * 60;
3363 tz += ('0' - zone[4]) * 60;
3371 gmtime_r(&time, tm);
3375 static enum input_status
3376 select_commit_parent_handler(void *data, char *buf, int c)
3378 size_t parents = *(size_t *) data;
3385 parent = atoi(buf) * 10;
3388 if (parent > parents)
3394 select_commit_parent(const char *id, char rev[SIZEOF_REV])
3396 char buf[SIZEOF_STR * 4];
3397 const char *revlist_argv[] = {
3398 "git", "rev-list", "-1", "--parents", id, NULL
3402 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3403 !*chomp_string(buf) ||
3404 (parents = (strlen(buf) / 40) - 1) < 0) {
3405 report("Failed to get parent information");
3408 } else if (parents == 0) {
3409 report("The selected commit has no parents");
3414 char prompt[SIZEOF_STR];
3417 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3419 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3422 parents = atoi(result);
3425 string_copy_rev(rev, &buf[41 * parents]);
3434 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3436 char text[SIZEOF_STR];
3438 if (opt_line_number && draw_lineno(view, lineno))
3441 string_expand(text, sizeof(text), line->data, opt_tab_size);
3442 draw_text(view, line->type, text, TRUE);
3447 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3449 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3450 char refbuf[SIZEOF_STR];
3453 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3454 ref = chomp_string(refbuf);
3459 /* This is the only fatal call, since it can "corrupt" the buffer. */
3460 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3467 add_pager_refs(struct view *view, struct line *line)
3469 char buf[SIZEOF_STR];
3470 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3472 size_t bufpos = 0, refpos = 0;
3473 const char *sep = "Refs: ";
3474 bool is_tag = FALSE;
3476 assert(line->type == LINE_COMMIT);
3478 refs = get_refs(commit_id);
3480 if (view == VIEW(REQ_VIEW_DIFF))
3481 goto try_add_describe_ref;
3486 struct ref *ref = refs[refpos];
3487 const char *fmt = ref->tag ? "%s[%s]" :
3488 ref->remote ? "%s<%s>" : "%s%s";
3490 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3495 } while (refs[refpos++]->next);
3497 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3498 try_add_describe_ref:
3499 /* Add <tag>-g<commit_id> "fake" reference. */
3500 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3507 add_line_text(view, buf, LINE_PP_REFS);
3511 pager_read(struct view *view, char *data)
3518 line = add_line_text(view, data, get_line_type(data));
3522 if (line->type == LINE_COMMIT &&
3523 (view == VIEW(REQ_VIEW_DIFF) ||
3524 view == VIEW(REQ_VIEW_LOG)))
3525 add_pager_refs(view, line);
3531 pager_request(struct view *view, enum request request, struct line *line)
3535 if (request != REQ_ENTER)
3538 if (line->type == LINE_COMMIT &&
3539 (view == VIEW(REQ_VIEW_LOG) ||
3540 view == VIEW(REQ_VIEW_PAGER))) {
3541 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3545 /* Always scroll the view even if it was split. That way
3546 * you can use Enter to scroll through the log view and
3547 * split open each commit diff. */
3548 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3550 /* FIXME: A minor workaround. Scrolling the view will call report("")
3551 * but if we are scrolling a non-current view this won't properly
3552 * update the view title. */
3554 update_view_title(view);
3560 pager_grep(struct view *view, struct line *line)
3563 char *text = line->data;
3568 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3575 pager_select(struct view *view, struct line *line)
3577 if (line->type == LINE_COMMIT) {
3578 char *text = (char *)line->data + STRING_SIZE("commit ");
3580 if (view != VIEW(REQ_VIEW_PAGER))
3581 string_copy_rev(view->ref, text);
3582 string_copy_rev(ref_commit, text);
3586 static struct view_ops pager_ops = {
3597 static const char *log_argv[SIZEOF_ARG] = {
3598 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3602 log_request(struct view *view, enum request request, struct line *line)
3607 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3610 return pager_request(view, request, line);
3614 static struct view_ops log_ops = {
3625 static const char *diff_argv[SIZEOF_ARG] = {
3626 "git", "show", "--pretty=fuller", "--no-color", "--root",
3627 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3630 static struct view_ops diff_ops = {
3646 help_open(struct view *view)
3648 char buf[SIZEOF_STR];
3652 if (view->lines > 0)
3655 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3657 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3660 if (req_info[i].request == REQ_NONE)
3663 if (!req_info[i].request) {
3664 add_line_text(view, "", LINE_DEFAULT);
3665 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3669 key = get_key(req_info[i].request);
3671 key = "(no key defined)";
3673 for (bufpos = 0; bufpos <= req_info[i].namelen; bufpos++) {
3674 buf[bufpos] = tolower(req_info[i].name[bufpos]);
3675 if (buf[bufpos] == '_')
3679 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s",
3680 key, buf, req_info[i].help);
3684 add_line_text(view, "", LINE_DEFAULT);
3685 add_line_text(view, "External commands:", LINE_DEFAULT);
3688 for (i = 0; i < run_requests; i++) {
3689 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3696 key = get_key_name(req->key);
3698 key = "(no key defined)";
3700 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3701 if (!string_format_from(buf, &bufpos, "%s%s",
3702 argc ? " " : "", req->argv[argc]))
3705 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3706 keymap_table[req->keymap].name, key, buf);
3712 static struct view_ops help_ops = {
3728 struct tree_stack_entry {
3729 struct tree_stack_entry *prev; /* Entry below this in the stack */
3730 unsigned long lineno; /* Line number to restore */
3731 char *name; /* Position of name in opt_path */
3734 /* The top of the path stack. */
3735 static struct tree_stack_entry *tree_stack = NULL;
3736 unsigned long tree_lineno = 0;
3739 pop_tree_stack_entry(void)
3741 struct tree_stack_entry *entry = tree_stack;
3743 tree_lineno = entry->lineno;
3745 tree_stack = entry->prev;
3750 push_tree_stack_entry(const char *name, unsigned long lineno)
3752 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3753 size_t pathlen = strlen(opt_path);
3758 entry->prev = tree_stack;
3759 entry->name = opt_path + pathlen;
3762 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3763 pop_tree_stack_entry();
3767 /* Move the current line to the first tree entry. */
3769 entry->lineno = lineno;
3772 /* Parse output from git-ls-tree(1):
3774 * 100644 blob fb0e31ea6cc679b7379631188190e975f5789c26 Makefile
3775 * 100644 blob 5304ca4260aaddaee6498f9630e7d471b8591ea6 README
3776 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3777 * 100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38 web.conf
3780 #define SIZEOF_TREE_ATTR \
3781 STRING_SIZE("100644 blob ed09fe897f3c7c9af90bcf80cae92558ea88ae38\t")
3783 #define SIZEOF_TREE_MODE \
3784 STRING_SIZE("100644 ")
3786 #define TREE_ID_OFFSET \
3787 STRING_SIZE("100644 blob ")
3790 char id[SIZEOF_REV];
3792 struct tm time; /* Date from the author ident. */
3793 char author[75]; /* Author of the commit. */
3798 tree_path(struct line *line)
3800 return ((struct tree_entry *) line->data)->name;
3805 tree_compare_entry(struct line *line1, struct line *line2)
3807 if (line1->type != line2->type)
3808 return line1->type == LINE_TREE_DIR ? -1 : 1;
3809 return strcmp(tree_path(line1), tree_path(line2));
3812 static struct line *
3813 tree_entry(struct view *view, enum line_type type, const char *path,
3814 const char *mode, const char *id)
3816 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3817 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3819 if (!entry || !line) {
3824 strncpy(entry->name, path, strlen(path));
3826 entry->mode = strtoul(mode, NULL, 8);
3828 string_copy_rev(entry->id, id);
3834 tree_read_date(struct view *view, char *text, bool *read_date)
3836 static char author_name[SIZEOF_STR];
3837 static struct tm author_time;
3839 if (!text && *read_date) {
3844 char *path = *opt_path ? opt_path : ".";
3845 /* Find next entry to process */
3846 const char *log_file[] = {
3847 "git", "log", "--no-color", "--pretty=raw",
3848 "--cc", "--raw", view->id, "--", path, NULL
3852 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3853 report("Failed to load tree data");
3857 done_io(view->pipe);
3862 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3863 parse_author_line(text + STRING_SIZE("author "),
3864 author_name, sizeof(author_name), &author_time);
3866 } else if (*text == ':') {
3868 size_t annotated = 1;
3871 pos = strchr(text, '\t');
3875 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3876 text += strlen(opt_prefix);
3877 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3878 text += strlen(opt_path);
3879 pos = strchr(text, '/');
3883 for (i = 1; i < view->lines; i++) {
3884 struct line *line = &view->line[i];
3885 struct tree_entry *entry = line->data;
3887 annotated += !!*entry->author;
3888 if (*entry->author || strcmp(entry->name, text))
3891 string_copy(entry->author, author_name);
3892 memcpy(&entry->time, &author_time, sizeof(entry->time));
3897 if (annotated == view->lines)
3898 kill_io(view->pipe);
3904 tree_read(struct view *view, char *text)
3906 static bool read_date = FALSE;
3907 struct tree_entry *data;
3908 struct line *entry, *line;
3909 enum line_type type;
3910 size_t textlen = text ? strlen(text) : 0;
3911 char *path = text + SIZEOF_TREE_ATTR;
3913 if (read_date || !text)
3914 return tree_read_date(view, text, &read_date);
3916 if (textlen <= SIZEOF_TREE_ATTR)
3918 if (view->lines == 0 &&
3919 !tree_entry(view, LINE_TREE_PARENT, opt_path, NULL, NULL))
3922 /* Strip the path part ... */
3924 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3925 size_t striplen = strlen(opt_path);
3927 if (pathlen > striplen)
3928 memmove(path, path + striplen,
3929 pathlen - striplen + 1);
3931 /* Insert "link" to parent directory. */
3932 if (view->lines == 1 &&
3933 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3937 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3938 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3943 /* Skip "Directory ..." and ".." line. */
3944 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3945 if (tree_compare_entry(line, entry) <= 0)
3948 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3952 for (; line <= entry; line++)
3953 line->dirty = line->cleareol = 1;
3957 if (tree_lineno > view->lineno) {
3958 view->lineno = tree_lineno;
3966 tree_draw(struct view *view, struct line *line, unsigned int lineno)
3968 struct tree_entry *entry = line->data;
3970 if (line->type == LINE_TREE_PARENT) {
3971 if (draw_text(view, line->type, "Directory path /", TRUE))
3974 char mode[11] = "-r--r--r--";
3976 if (S_ISDIR(entry->mode)) {
3977 mode[3] = mode[6] = mode[9] = 'x';
3980 if (S_ISLNK(entry->mode))
3982 if (entry->mode & S_IWUSR)
3984 if (entry->mode & S_IXUSR)
3986 if (entry->mode & S_IXGRP)
3988 if (entry->mode & S_IXOTH)
3990 if (draw_field(view, LINE_TREE_MODE, mode, 11, TRUE))
3993 if (opt_author && draw_author(view, entry->author))
3996 if (opt_date && draw_date(view, *entry->author ? &entry->time : NULL))
3999 if (draw_text(view, line->type, entry->name, TRUE))
4007 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
4008 int fd = mkstemp(file);
4011 report("Failed to create temporary file");
4012 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
4013 report("Failed to save blob data to file");
4015 open_editor(FALSE, file);
4021 tree_request(struct view *view, enum request request, struct line *line)
4023 enum open_flags flags;
4026 case REQ_VIEW_BLAME:
4027 if (line->type != LINE_TREE_FILE) {
4028 report("Blame only supported for files");
4032 string_copy(opt_ref, view->vid);
4036 if (line->type != LINE_TREE_FILE) {
4037 report("Edit only supported for files");
4038 } else if (!is_head_commit(view->vid)) {
4041 open_editor(TRUE, opt_file);
4047 /* quit view if at top of tree */
4048 return REQ_VIEW_CLOSE;
4051 line = &view->line[1];
4061 /* Cleanup the stack if the tree view is at a different tree. */
4062 while (!*opt_path && tree_stack)
4063 pop_tree_stack_entry();
4065 switch (line->type) {
4067 /* Depending on whether it is a subdir or parent (updir?) link
4068 * mangle the path buffer. */
4069 if (line == &view->line[1] && *opt_path) {
4070 pop_tree_stack_entry();
4073 const char *basename = tree_path(line);
4075 push_tree_stack_entry(basename, view->lineno);
4078 /* Trees and subtrees share the same ID, so they are not not
4079 * unique like blobs. */
4080 flags = OPEN_RELOAD;
4081 request = REQ_VIEW_TREE;
4084 case LINE_TREE_FILE:
4085 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4086 request = REQ_VIEW_BLOB;
4093 open_view(view, request, flags);
4094 if (request == REQ_VIEW_TREE)
4095 view->lineno = tree_lineno;
4101 tree_select(struct view *view, struct line *line)
4103 struct tree_entry *entry = line->data;
4105 if (line->type == LINE_TREE_FILE) {
4106 string_copy_rev(ref_blob, entry->id);
4107 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4109 } else if (line->type != LINE_TREE_DIR) {
4113 string_copy_rev(view->ref, entry->id);
4116 static const char *tree_argv[SIZEOF_ARG] = {
4117 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4120 static struct view_ops tree_ops = {
4132 blob_read(struct view *view, char *line)
4136 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4140 blob_request(struct view *view, enum request request, struct line *line)
4147 return pager_request(view, request, line);
4151 static const char *blob_argv[SIZEOF_ARG] = {
4152 "git", "cat-file", "blob", "%(blob)", NULL
4155 static struct view_ops blob_ops = {
4169 * Loading the blame view is a two phase job:
4171 * 1. File content is read either using opt_file from the
4172 * filesystem or using git-cat-file.
4173 * 2. Then blame information is incrementally added by
4174 * reading output from git-blame.
4177 static const char *blame_head_argv[] = {
4178 "git", "blame", "--incremental", "--", "%(file)", NULL
4181 static const char *blame_ref_argv[] = {
4182 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4185 static const char *blame_cat_file_argv[] = {
4186 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4189 struct blame_commit {
4190 char id[SIZEOF_REV]; /* SHA1 ID. */
4191 char title[128]; /* First line of the commit message. */
4192 char author[75]; /* Author of the commit. */
4193 struct tm time; /* Date from the author ident. */
4194 char filename[128]; /* Name of file. */
4195 bool has_previous; /* Was a "previous" line detected. */
4199 struct blame_commit *commit;
4204 blame_open(struct view *view)
4206 if (*opt_ref || !io_open(&view->io, opt_file)) {
4207 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4211 setup_update(view, opt_file);
4212 string_format(view->ref, "%s ...", opt_file);
4217 static struct blame_commit *
4218 get_blame_commit(struct view *view, const char *id)
4222 for (i = 0; i < view->lines; i++) {
4223 struct blame *blame = view->line[i].data;
4228 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4229 return blame->commit;
4233 struct blame_commit *commit = calloc(1, sizeof(*commit));
4236 string_ncopy(commit->id, id, SIZEOF_REV);
4242 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4244 const char *pos = *posref;
4247 pos = strchr(pos + 1, ' ');
4248 if (!pos || !isdigit(pos[1]))
4250 *number = atoi(pos + 1);
4251 if (*number < min || *number > max)
4258 static struct blame_commit *
4259 parse_blame_commit(struct view *view, const char *text, int *blamed)
4261 struct blame_commit *commit;
4262 struct blame *blame;
4263 const char *pos = text + SIZEOF_REV - 1;
4267 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
4270 if (!parse_number(&pos, &lineno, 1, view->lines) ||
4271 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4274 commit = get_blame_commit(view, text);
4280 struct line *line = &view->line[lineno + group - 1];
4283 blame->commit = commit;
4291 blame_read_file(struct view *view, const char *line, bool *read_file)
4294 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4297 if (view->lines == 0 && !view->parent)
4298 die("No blame exist for %s", view->vid);
4300 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4301 report("Failed to load blame data");
4305 done_io(view->pipe);
4311 size_t linelen = string_expand_length(line, opt_tab_size);
4312 struct blame *blame = malloc(sizeof(*blame) + linelen);
4317 blame->commit = NULL;
4318 string_expand(blame->text, linelen + 1, line, opt_tab_size);
4319 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4324 match_blame_header(const char *name, char **line)
4326 size_t namelen = strlen(name);
4327 bool matched = !strncmp(name, *line, namelen);
4336 blame_read(struct view *view, char *line)
4338 static struct blame_commit *commit = NULL;
4339 static int blamed = 0;
4340 static time_t author_time;
4341 static bool read_file = TRUE;
4344 return blame_read_file(view, line, &read_file);
4351 string_format(view->ref, "%s", view->vid);
4352 if (view_is_displayed(view)) {
4353 update_view_title(view);
4354 redraw_view_from(view, 0);
4360 commit = parse_blame_commit(view, line, &blamed);
4361 string_format(view->ref, "%s %2d%%", view->vid,
4362 view->lines ? blamed * 100 / view->lines : 0);
4364 } else if (match_blame_header("author ", &line)) {
4365 string_ncopy(commit->author, line, strlen(line));
4367 } else if (match_blame_header("author-time ", &line)) {
4368 author_time = (time_t) atol(line);
4370 } else if (match_blame_header("author-tz ", &line)) {
4373 tz = ('0' - line[1]) * 60 * 60 * 10;
4374 tz += ('0' - line[2]) * 60 * 60;
4375 tz += ('0' - line[3]) * 60;
4376 tz += ('0' - line[4]) * 60;
4382 gmtime_r(&author_time, &commit->time);
4384 } else if (match_blame_header("summary ", &line)) {
4385 string_ncopy(commit->title, line, strlen(line));
4387 } else if (match_blame_header("previous ", &line)) {
4388 commit->has_previous = TRUE;
4390 } else if (match_blame_header("filename ", &line)) {
4391 string_ncopy(commit->filename, line, strlen(line));
4399 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4401 struct blame *blame = line->data;
4402 struct tm *time = NULL;
4403 const char *id = NULL, *author = NULL;
4405 if (blame->commit && *blame->commit->filename) {
4406 id = blame->commit->id;
4407 author = blame->commit->author;
4408 time = &blame->commit->time;
4411 if (opt_date && draw_date(view, time))
4414 if (opt_author && draw_author(view, author))
4417 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4420 if (draw_lineno(view, lineno))
4423 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4428 check_blame_commit(struct blame *blame)
4431 report("Commit data not loaded yet");
4432 else if (!strcmp(blame->commit->id, NULL_ID))
4433 report("No commit exist for the selected line");
4440 blame_request(struct view *view, enum request request, struct line *line)
4442 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4443 struct blame *blame = line->data;
4446 case REQ_VIEW_BLAME:
4447 if (check_blame_commit(blame)) {
4448 string_copy(opt_ref, blame->commit->id);
4449 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4454 if (check_blame_commit(blame) &&
4455 select_commit_parent(blame->commit->id, opt_ref))
4456 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4460 if (!blame->commit) {
4461 report("No commit loaded yet");
4465 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4466 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4469 if (!strcmp(blame->commit->id, NULL_ID)) {
4470 struct view *diff = VIEW(REQ_VIEW_DIFF);
4471 const char *diff_index_argv[] = {
4472 "git", "diff-index", "--root", "--patch-with-stat",
4473 "-C", "-M", "HEAD", "--", view->vid, NULL
4476 if (!blame->commit->has_previous) {
4477 diff_index_argv[1] = "diff";
4478 diff_index_argv[2] = "--no-color";
4479 diff_index_argv[6] = "--";
4480 diff_index_argv[7] = "/dev/null";
4483 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4484 report("Failed to allocate diff command");
4487 flags |= OPEN_PREPARED;
4490 open_view(view, REQ_VIEW_DIFF, flags);
4491 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4492 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4503 blame_grep(struct view *view, struct line *line)
4505 struct blame *blame = line->data;
4506 struct blame_commit *commit = blame->commit;
4509 #define MATCH(text, on) \
4510 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4513 char buf[DATE_COLS + 1];
4515 if (MATCH(commit->title, 1) ||
4516 MATCH(commit->author, opt_author) ||
4517 MATCH(commit->id, opt_date))
4520 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4525 return MATCH(blame->text, 1);
4531 blame_select(struct view *view, struct line *line)
4533 struct blame *blame = line->data;
4534 struct blame_commit *commit = blame->commit;
4539 if (!strcmp(commit->id, NULL_ID))
4540 string_ncopy(ref_commit, "HEAD", 4);
4542 string_copy_rev(ref_commit, commit->id);
4545 static struct view_ops blame_ops = {
4564 char rev[SIZEOF_REV];
4565 char name[SIZEOF_STR];
4569 char rev[SIZEOF_REV];
4570 char name[SIZEOF_STR];
4574 static char status_onbranch[SIZEOF_STR];
4575 static struct status stage_status;
4576 static enum line_type stage_line_type;
4577 static size_t stage_chunks;
4578 static int *stage_chunk;
4580 /* This should work even for the "On branch" line. */
4582 status_has_none(struct view *view, struct line *line)
4584 return line < view->line + view->lines && !line[1].data;
4587 /* Get fields from the diff line:
4588 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4591 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4593 const char *old_mode = buf + 1;
4594 const char *new_mode = buf + 8;
4595 const char *old_rev = buf + 15;
4596 const char *new_rev = buf + 56;
4597 const char *status = buf + 97;
4600 old_mode[-1] != ':' ||
4601 new_mode[-1] != ' ' ||
4602 old_rev[-1] != ' ' ||
4603 new_rev[-1] != ' ' ||
4607 file->status = *status;
4609 string_copy_rev(file->old.rev, old_rev);
4610 string_copy_rev(file->new.rev, new_rev);
4612 file->old.mode = strtoul(old_mode, NULL, 8);
4613 file->new.mode = strtoul(new_mode, NULL, 8);
4615 file->old.name[0] = file->new.name[0] = 0;
4621 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4623 struct status *file = NULL;
4624 struct status *unmerged = NULL;
4628 if (!run_io(&io, argv, NULL, IO_RD))
4631 add_line_data(view, NULL, type);
4633 while ((buf = io_get(&io, 0, TRUE))) {
4635 file = calloc(1, sizeof(*file));
4636 if (!file || !add_line_data(view, file, type))
4640 /* Parse diff info part. */
4642 file->status = status;
4644 string_copy(file->old.rev, NULL_ID);
4646 } else if (!file->status) {
4647 if (!status_get_diff(file, buf, strlen(buf)))
4650 buf = io_get(&io, 0, TRUE);
4654 /* Collapse all 'M'odified entries that follow a
4655 * associated 'U'nmerged entry. */
4656 if (file->status == 'U') {
4659 } else if (unmerged) {
4660 int collapse = !strcmp(buf, unmerged->new.name);
4672 /* Grab the old name for rename/copy. */
4673 if (!*file->old.name &&
4674 (file->status == 'R' || file->status == 'C')) {
4675 string_ncopy(file->old.name, buf, strlen(buf));
4677 buf = io_get(&io, 0, TRUE);
4682 /* git-ls-files just delivers a NUL separated list of
4683 * file names similar to the second half of the
4684 * git-diff-* output. */
4685 string_ncopy(file->new.name, buf, strlen(buf));
4686 if (!*file->old.name)
4687 string_copy(file->old.name, file->new.name);
4691 if (io_error(&io)) {
4697 if (!view->line[view->lines - 1].data)
4698 add_line_data(view, NULL, LINE_STAT_NONE);
4704 /* Don't show unmerged entries in the staged section. */
4705 static const char *status_diff_index_argv[] = {
4706 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4707 "--cached", "-M", "HEAD", NULL
4710 static const char *status_diff_files_argv[] = {
4711 "git", "diff-files", "-z", NULL
4714 static const char *status_list_other_argv[] = {
4715 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4718 static const char *status_list_no_head_argv[] = {
4719 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4722 static const char *update_index_argv[] = {
4723 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4726 /* Restore the previous line number to stay in the context or select a
4727 * line with something that can be updated. */
4729 status_restore(struct view *view)
4731 if (view->p_lineno >= view->lines)
4732 view->p_lineno = view->lines - 1;
4733 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4735 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4738 /* If the above fails, always skip the "On branch" line. */
4739 if (view->p_lineno < view->lines)
4740 view->lineno = view->p_lineno;
4744 if (view->lineno < view->offset)
4745 view->offset = view->lineno;
4746 else if (view->offset + view->height <= view->lineno)
4747 view->offset = view->lineno - view->height + 1;
4749 view->p_restore = FALSE;
4752 /* First parse staged info using git-diff-index(1), then parse unstaged
4753 * info using git-diff-files(1), and finally untracked files using
4754 * git-ls-files(1). */
4756 status_open(struct view *view)
4760 add_line_data(view, NULL, LINE_STAT_HEAD);
4761 if (is_initial_commit())
4762 string_copy(status_onbranch, "Initial commit");
4763 else if (!*opt_head)
4764 string_copy(status_onbranch, "Not currently on any branch");
4765 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4768 run_io_bg(update_index_argv);
4770 if (is_initial_commit()) {
4771 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4773 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4777 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4778 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4781 /* Restore the exact position or use the specialized restore
4783 if (!view->p_restore)
4784 status_restore(view);
4789 status_draw(struct view *view, struct line *line, unsigned int lineno)
4791 struct status *status = line->data;
4792 enum line_type type;
4796 switch (line->type) {
4797 case LINE_STAT_STAGED:
4798 type = LINE_STAT_SECTION;
4799 text = "Changes to be committed:";
4802 case LINE_STAT_UNSTAGED:
4803 type = LINE_STAT_SECTION;
4804 text = "Changed but not updated:";
4807 case LINE_STAT_UNTRACKED:
4808 type = LINE_STAT_SECTION;
4809 text = "Untracked files:";
4812 case LINE_STAT_NONE:
4813 type = LINE_DEFAULT;
4814 text = " (no files)";
4817 case LINE_STAT_HEAD:
4818 type = LINE_STAT_HEAD;
4819 text = status_onbranch;
4826 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4828 buf[0] = status->status;
4829 if (draw_text(view, line->type, buf, TRUE))
4831 type = LINE_DEFAULT;
4832 text = status->new.name;
4835 draw_text(view, type, text, TRUE);
4840 status_enter(struct view *view, struct line *line)
4842 struct status *status = line->data;
4843 const char *oldpath = status ? status->old.name : NULL;
4844 /* Diffs for unmerged entries are empty when passing the new
4845 * path, so leave it empty. */
4846 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4848 enum open_flags split;
4849 struct view *stage = VIEW(REQ_VIEW_STAGE);
4851 if (line->type == LINE_STAT_NONE ||
4852 (!status && line[1].type == LINE_STAT_NONE)) {
4853 report("No file to diff");
4857 switch (line->type) {
4858 case LINE_STAT_STAGED:
4859 if (is_initial_commit()) {
4860 const char *no_head_diff_argv[] = {
4861 "git", "diff", "--no-color", "--patch-with-stat",
4862 "--", "/dev/null", newpath, NULL
4865 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4868 const char *index_show_argv[] = {
4869 "git", "diff-index", "--root", "--patch-with-stat",
4870 "-C", "-M", "--cached", "HEAD", "--",
4871 oldpath, newpath, NULL
4874 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4879 info = "Staged changes to %s";
4881 info = "Staged changes";
4884 case LINE_STAT_UNSTAGED:
4886 const char *files_show_argv[] = {
4887 "git", "diff-files", "--root", "--patch-with-stat",
4888 "-C", "-M", "--", oldpath, newpath, NULL
4891 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4894 info = "Unstaged changes to %s";
4896 info = "Unstaged changes";
4899 case LINE_STAT_UNTRACKED:
4901 report("No file to show");
4905 if (!suffixcmp(status->new.name, -1, "/")) {
4906 report("Cannot display a directory");
4910 if (!prepare_update_file(stage, newpath))
4912 info = "Untracked file %s";
4915 case LINE_STAT_HEAD:
4919 die("line type %d not handled in switch", line->type);
4922 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4923 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
4924 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4926 stage_status = *status;
4928 memset(&stage_status, 0, sizeof(stage_status));
4931 stage_line_type = line->type;
4933 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4940 status_exists(struct status *status, enum line_type type)
4942 struct view *view = VIEW(REQ_VIEW_STATUS);
4943 unsigned long lineno;
4945 for (lineno = 0; lineno < view->lines; lineno++) {
4946 struct line *line = &view->line[lineno];
4947 struct status *pos = line->data;
4949 if (line->type != type)
4951 if (!pos && (!status || !status->status) && line[1].data) {
4952 select_view_line(view, lineno);
4955 if (pos && !strcmp(status->new.name, pos->new.name)) {
4956 select_view_line(view, lineno);
4966 status_update_prepare(struct io *io, enum line_type type)
4968 const char *staged_argv[] = {
4969 "git", "update-index", "-z", "--index-info", NULL
4971 const char *others_argv[] = {
4972 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4976 case LINE_STAT_STAGED:
4977 return run_io(io, staged_argv, opt_cdup, IO_WR);
4979 case LINE_STAT_UNSTAGED:
4980 return run_io(io, others_argv, opt_cdup, IO_WR);
4982 case LINE_STAT_UNTRACKED:
4983 return run_io(io, others_argv, NULL, IO_WR);
4986 die("line type %d not handled in switch", type);
4992 status_update_write(struct io *io, struct status *status, enum line_type type)
4994 char buf[SIZEOF_STR];
4998 case LINE_STAT_STAGED:
4999 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
5002 status->old.name, 0))
5006 case LINE_STAT_UNSTAGED:
5007 case LINE_STAT_UNTRACKED:
5008 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
5013 die("line type %d not handled in switch", type);
5016 return io_write(io, buf, bufsize);
5020 status_update_file(struct status *status, enum line_type type)
5025 if (!status_update_prepare(&io, type))
5028 result = status_update_write(&io, status, type);
5034 status_update_files(struct view *view, struct line *line)
5038 struct line *pos = view->line + view->lines;
5042 if (!status_update_prepare(&io, line->type))
5045 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5048 for (file = 0, done = 0; result && file < files; line++, file++) {
5049 int almost_done = file * 100 / files;
5051 if (almost_done > done) {
5053 string_format(view->ref, "updating file %u of %u (%d%% done)",
5055 update_view_title(view);
5057 result = status_update_write(&io, line->data, line->type);
5065 status_update(struct view *view)
5067 struct line *line = &view->line[view->lineno];
5069 assert(view->lines);
5072 /* This should work even for the "On branch" line. */
5073 if (line < view->line + view->lines && !line[1].data) {
5074 report("Nothing to update");
5078 if (!status_update_files(view, line + 1)) {
5079 report("Failed to update file status");
5083 } else if (!status_update_file(line->data, line->type)) {
5084 report("Failed to update file status");
5092 status_revert(struct status *status, enum line_type type, bool has_none)
5094 if (!status || type != LINE_STAT_UNSTAGED) {
5095 if (type == LINE_STAT_STAGED) {
5096 report("Cannot revert changes to staged files");
5097 } else if (type == LINE_STAT_UNTRACKED) {
5098 report("Cannot revert changes to untracked files");
5099 } else if (has_none) {
5100 report("Nothing to revert");
5102 report("Cannot revert changes to multiple files");
5107 const char *checkout_argv[] = {
5108 "git", "checkout", "--", status->old.name, NULL
5111 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5113 return run_io_fg(checkout_argv, opt_cdup);
5118 status_request(struct view *view, enum request request, struct line *line)
5120 struct status *status = line->data;
5123 case REQ_STATUS_UPDATE:
5124 if (!status_update(view))
5128 case REQ_STATUS_REVERT:
5129 if (!status_revert(status, line->type, status_has_none(view, line)))
5133 case REQ_STATUS_MERGE:
5134 if (!status || status->status != 'U') {
5135 report("Merging only possible for files with unmerged status ('U').");
5138 open_mergetool(status->new.name);
5144 if (status->status == 'D') {
5145 report("File has been deleted.");
5149 open_editor(status->status != '?', status->new.name);
5152 case REQ_VIEW_BLAME:
5154 string_copy(opt_file, status->new.name);
5160 /* After returning the status view has been split to
5161 * show the stage view. No further reloading is
5163 status_enter(view, line);
5167 /* Simply reload the view. */
5174 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5180 status_select(struct view *view, struct line *line)
5182 struct status *status = line->data;
5183 char file[SIZEOF_STR] = "all files";
5187 if (status && !string_format(file, "'%s'", status->new.name))
5190 if (!status && line[1].type == LINE_STAT_NONE)
5193 switch (line->type) {
5194 case LINE_STAT_STAGED:
5195 text = "Press %s to unstage %s for commit";
5198 case LINE_STAT_UNSTAGED:
5199 text = "Press %s to stage %s for commit";
5202 case LINE_STAT_UNTRACKED:
5203 text = "Press %s to stage %s for addition";
5206 case LINE_STAT_HEAD:
5207 case LINE_STAT_NONE:
5208 text = "Nothing to update";
5212 die("line type %d not handled in switch", line->type);
5215 if (status && status->status == 'U') {
5216 text = "Press %s to resolve conflict in %s";
5217 key = get_key(REQ_STATUS_MERGE);
5220 key = get_key(REQ_STATUS_UPDATE);
5223 string_format(view->ref, text, key, file);
5227 status_grep(struct view *view, struct line *line)
5229 struct status *status = line->data;
5230 enum { S_STATUS, S_NAME, S_END } state;
5237 for (state = S_STATUS; state < S_END; state++) {
5241 case S_NAME: text = status->new.name; break;
5243 buf[0] = status->status;
5251 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5258 static struct view_ops status_ops = {
5271 stage_diff_write(struct io *io, struct line *line, struct line *end)
5273 while (line < end) {
5274 if (!io_write(io, line->data, strlen(line->data)) ||
5275 !io_write(io, "\n", 1))
5278 if (line->type == LINE_DIFF_CHUNK ||
5279 line->type == LINE_DIFF_HEADER)
5286 static struct line *
5287 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5289 for (; view->line < line; line--)
5290 if (line->type == type)
5297 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5299 const char *apply_argv[SIZEOF_ARG] = {
5300 "git", "apply", "--whitespace=nowarn", NULL
5302 struct line *diff_hdr;
5306 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5311 apply_argv[argc++] = "--cached";
5312 if (revert || stage_line_type == LINE_STAT_STAGED)
5313 apply_argv[argc++] = "-R";
5314 apply_argv[argc++] = "-";
5315 apply_argv[argc++] = NULL;
5316 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5319 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5320 !stage_diff_write(&io, chunk, view->line + view->lines))
5324 run_io_bg(update_index_argv);
5326 return chunk ? TRUE : FALSE;
5330 stage_update(struct view *view, struct line *line)
5332 struct line *chunk = NULL;
5334 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5335 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5338 if (!stage_apply_chunk(view, chunk, FALSE)) {
5339 report("Failed to apply chunk");
5343 } else if (!stage_status.status) {
5344 view = VIEW(REQ_VIEW_STATUS);
5346 for (line = view->line; line < view->line + view->lines; line++)
5347 if (line->type == stage_line_type)
5350 if (!status_update_files(view, line + 1)) {
5351 report("Failed to update files");
5355 } else if (!status_update_file(&stage_status, stage_line_type)) {
5356 report("Failed to update file");
5364 stage_revert(struct view *view, struct line *line)
5366 struct line *chunk = NULL;
5368 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5369 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5372 if (!prompt_yesno("Are you sure you want to revert changes?"))
5375 if (!stage_apply_chunk(view, chunk, TRUE)) {
5376 report("Failed to revert chunk");
5382 return status_revert(stage_status.status ? &stage_status : NULL,
5383 stage_line_type, FALSE);
5389 stage_next(struct view *view, struct line *line)
5393 if (!stage_chunks) {
5394 static size_t alloc = 0;
5397 for (line = view->line; line < view->line + view->lines; line++) {
5398 if (line->type != LINE_DIFF_CHUNK)
5401 tmp = realloc_items(stage_chunk, &alloc,
5402 stage_chunks, sizeof(*tmp));
5404 report("Allocation failure");
5409 stage_chunk[stage_chunks++] = line - view->line;
5413 for (i = 0; i < stage_chunks; i++) {
5414 if (stage_chunk[i] > view->lineno) {
5415 do_scroll_view(view, stage_chunk[i] - view->lineno);
5416 report("Chunk %d of %d", i + 1, stage_chunks);
5421 report("No next chunk found");
5425 stage_request(struct view *view, enum request request, struct line *line)
5428 case REQ_STATUS_UPDATE:
5429 if (!stage_update(view, line))
5433 case REQ_STATUS_REVERT:
5434 if (!stage_revert(view, line))
5438 case REQ_STAGE_NEXT:
5439 if (stage_line_type == LINE_STAT_UNTRACKED) {
5440 report("File is untracked; press %s to add",
5441 get_key(REQ_STATUS_UPDATE));
5444 stage_next(view, line);
5448 if (!stage_status.new.name[0])
5450 if (stage_status.status == 'D') {
5451 report("File has been deleted.");
5455 open_editor(stage_status.status != '?', stage_status.new.name);
5459 /* Reload everything ... */
5462 case REQ_VIEW_BLAME:
5463 if (stage_status.new.name[0]) {
5464 string_copy(opt_file, stage_status.new.name);
5470 return pager_request(view, request, line);
5476 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5477 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5479 /* Check whether the staged entry still exists, and close the
5480 * stage view if it doesn't. */
5481 if (!status_exists(&stage_status, stage_line_type)) {
5482 status_restore(VIEW(REQ_VIEW_STATUS));
5483 return REQ_VIEW_CLOSE;
5486 if (stage_line_type == LINE_STAT_UNTRACKED) {
5487 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5488 report("Cannot display a directory");
5492 if (!prepare_update_file(view, stage_status.new.name)) {
5493 report("Failed to open file: %s", strerror(errno));
5497 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5502 static struct view_ops stage_ops = {
5519 char id[SIZEOF_REV]; /* SHA1 ID. */
5520 char title[128]; /* First line of the commit message. */
5521 char author[75]; /* Author of the commit. */
5522 struct tm time; /* Date from the author ident. */
5523 struct ref **refs; /* Repository references. */
5524 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5525 size_t graph_size; /* The width of the graph array. */
5526 bool has_parents; /* Rewritten --parents seen. */
5529 /* Size of rev graph with no "padding" columns */
5530 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5533 struct rev_graph *prev, *next, *parents;
5534 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5536 struct commit *commit;
5538 unsigned int boundary:1;
5541 /* Parents of the commit being visualized. */
5542 static struct rev_graph graph_parents[4];
5544 /* The current stack of revisions on the graph. */
5545 static struct rev_graph graph_stacks[4] = {
5546 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5547 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5548 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5549 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5553 graph_parent_is_merge(struct rev_graph *graph)
5555 return graph->parents->size > 1;
5559 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5561 struct commit *commit = graph->commit;
5563 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5564 commit->graph[commit->graph_size++] = symbol;
5568 clear_rev_graph(struct rev_graph *graph)
5570 graph->boundary = 0;
5571 graph->size = graph->pos = 0;
5572 graph->commit = NULL;
5573 memset(graph->parents, 0, sizeof(*graph->parents));
5577 done_rev_graph(struct rev_graph *graph)
5579 if (graph_parent_is_merge(graph) &&
5580 graph->pos < graph->size - 1 &&
5581 graph->next->size == graph->size + graph->parents->size - 1) {
5582 size_t i = graph->pos + graph->parents->size - 1;
5584 graph->commit->graph_size = i * 2;
5585 while (i < graph->next->size - 1) {
5586 append_to_rev_graph(graph, ' ');
5587 append_to_rev_graph(graph, '\\');
5592 clear_rev_graph(graph);
5596 push_rev_graph(struct rev_graph *graph, const char *parent)
5600 /* "Collapse" duplicate parents lines.
5602 * FIXME: This needs to also update update the drawn graph but
5603 * for now it just serves as a method for pruning graph lines. */
5604 for (i = 0; i < graph->size; i++)
5605 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5608 if (graph->size < SIZEOF_REVITEMS) {
5609 string_copy_rev(graph->rev[graph->size++], parent);
5614 get_rev_graph_symbol(struct rev_graph *graph)
5618 if (graph->boundary)
5619 symbol = REVGRAPH_BOUND;
5620 else if (graph->parents->size == 0)
5621 symbol = REVGRAPH_INIT;
5622 else if (graph_parent_is_merge(graph))
5623 symbol = REVGRAPH_MERGE;
5624 else if (graph->pos >= graph->size)
5625 symbol = REVGRAPH_BRANCH;
5627 symbol = REVGRAPH_COMMIT;
5633 draw_rev_graph(struct rev_graph *graph)
5636 chtype separator, line;
5638 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5639 static struct rev_filler fillers[] = {
5645 chtype symbol = get_rev_graph_symbol(graph);
5646 struct rev_filler *filler;
5649 if (opt_line_graphics)
5650 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5652 filler = &fillers[DEFAULT];
5654 for (i = 0; i < graph->pos; i++) {
5655 append_to_rev_graph(graph, filler->line);
5656 if (graph_parent_is_merge(graph->prev) &&
5657 graph->prev->pos == i)
5658 filler = &fillers[RSHARP];
5660 append_to_rev_graph(graph, filler->separator);
5663 /* Place the symbol for this revision. */
5664 append_to_rev_graph(graph, symbol);
5666 if (graph->prev->size > graph->size)
5667 filler = &fillers[RDIAG];
5669 filler = &fillers[DEFAULT];
5673 for (; i < graph->size; i++) {
5674 append_to_rev_graph(graph, filler->separator);
5675 append_to_rev_graph(graph, filler->line);
5676 if (graph_parent_is_merge(graph->prev) &&
5677 i < graph->prev->pos + graph->parents->size)
5678 filler = &fillers[RSHARP];
5679 if (graph->prev->size > graph->size)
5680 filler = &fillers[LDIAG];
5683 if (graph->prev->size > graph->size) {
5684 append_to_rev_graph(graph, filler->separator);
5685 if (filler->line != ' ')
5686 append_to_rev_graph(graph, filler->line);
5690 /* Prepare the next rev graph */
5692 prepare_rev_graph(struct rev_graph *graph)
5696 /* First, traverse all lines of revisions up to the active one. */
5697 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5698 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5701 push_rev_graph(graph->next, graph->rev[graph->pos]);
5704 /* Interleave the new revision parent(s). */
5705 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5706 push_rev_graph(graph->next, graph->parents->rev[i]);
5708 /* Lastly, put any remaining revisions. */
5709 for (i = graph->pos + 1; i < graph->size; i++)
5710 push_rev_graph(graph->next, graph->rev[i]);
5714 update_rev_graph(struct view *view, struct rev_graph *graph)
5716 /* If this is the finalizing update ... */
5718 prepare_rev_graph(graph);
5720 /* Graph visualization needs a one rev look-ahead,
5721 * so the first update doesn't visualize anything. */
5722 if (!graph->prev->commit)
5725 if (view->lines > 2)
5726 view->line[view->lines - 3].dirty = 1;
5727 if (view->lines > 1)
5728 view->line[view->lines - 2].dirty = 1;
5729 draw_rev_graph(graph->prev);
5730 done_rev_graph(graph->prev->prev);
5738 static const char *main_argv[SIZEOF_ARG] = {
5739 "git", "log", "--no-color", "--pretty=raw", "--parents",
5740 "--topo-order", "%(head)", NULL
5744 main_draw(struct view *view, struct line *line, unsigned int lineno)
5746 struct commit *commit = line->data;
5748 if (!*commit->author)
5751 if (opt_date && draw_date(view, &commit->time))
5754 if (opt_author && draw_author(view, commit->author))
5757 if (opt_rev_graph && commit->graph_size &&
5758 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5761 if (opt_show_refs && commit->refs) {
5765 enum line_type type;
5767 if (commit->refs[i]->head)
5768 type = LINE_MAIN_HEAD;
5769 else if (commit->refs[i]->ltag)
5770 type = LINE_MAIN_LOCAL_TAG;
5771 else if (commit->refs[i]->tag)
5772 type = LINE_MAIN_TAG;
5773 else if (commit->refs[i]->tracked)
5774 type = LINE_MAIN_TRACKED;
5775 else if (commit->refs[i]->remote)
5776 type = LINE_MAIN_REMOTE;
5778 type = LINE_MAIN_REF;
5780 if (draw_text(view, type, "[", TRUE) ||
5781 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5782 draw_text(view, type, "]", TRUE))
5785 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5787 } while (commit->refs[i++]->next);
5790 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5794 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5796 main_read(struct view *view, char *line)
5798 static struct rev_graph *graph = graph_stacks;
5799 enum line_type type;
5800 struct commit *commit;
5805 if (!view->lines && !view->parent)
5806 die("No revisions match the given arguments.");
5807 if (view->lines > 0) {
5808 commit = view->line[view->lines - 1].data;
5809 view->line[view->lines - 1].dirty = 1;
5810 if (!*commit->author) {
5813 graph->commit = NULL;
5816 update_rev_graph(view, graph);
5818 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5819 clear_rev_graph(&graph_stacks[i]);
5823 type = get_line_type(line);
5824 if (type == LINE_COMMIT) {
5825 commit = calloc(1, sizeof(struct commit));
5829 line += STRING_SIZE("commit ");
5831 graph->boundary = 1;
5835 string_copy_rev(commit->id, line);
5836 commit->refs = get_refs(commit->id);
5837 graph->commit = commit;
5838 add_line_data(view, commit, LINE_MAIN_COMMIT);
5840 while ((line = strchr(line, ' '))) {
5842 push_rev_graph(graph->parents, line);
5843 commit->has_parents = TRUE;
5850 commit = view->line[view->lines - 1].data;
5854 if (commit->has_parents)
5856 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5860 parse_author_line(line + STRING_SIZE("author "),
5861 commit->author, sizeof(commit->author),
5863 update_rev_graph(view, graph);
5864 graph = graph->next;
5868 /* Fill in the commit title if it has not already been set. */
5869 if (commit->title[0])
5872 /* Require titles to start with a non-space character at the
5873 * offset used by git log. */
5874 if (strncmp(line, " ", 4))
5877 /* Well, if the title starts with a whitespace character,
5878 * try to be forgiving. Otherwise we end up with no title. */
5879 while (isspace(*line))
5883 /* FIXME: More graceful handling of titles; append "..." to
5884 * shortened titles, etc. */
5886 string_expand(commit->title, sizeof(commit->title), line, 1);
5887 view->line[view->lines - 1].dirty = 1;
5894 main_request(struct view *view, enum request request, struct line *line)
5896 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5900 open_view(view, REQ_VIEW_DIFF, flags);
5904 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5914 grep_refs(struct ref **refs, regex_t *regex)
5922 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5924 } while (refs[i++]->next);
5930 main_grep(struct view *view, struct line *line)
5932 struct commit *commit = line->data;
5933 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5934 char buf[DATE_COLS + 1];
5937 for (state = S_TITLE; state < S_END; state++) {
5941 case S_TITLE: text = commit->title; break;
5945 text = commit->author;
5950 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5957 if (grep_refs(commit->refs, view->regex) == TRUE)
5964 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5972 main_select(struct view *view, struct line *line)
5974 struct commit *commit = line->data;
5976 string_copy_rev(view->ref, commit->id);
5977 string_copy_rev(ref_commit, view->ref);
5980 static struct view_ops main_ops = {
5993 * Unicode / UTF-8 handling
5995 * NOTE: Much of the following code for dealing with unicode is derived from
5996 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
5997 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
6000 /* I've (over)annotated a lot of code snippets because I am not entirely
6001 * confident that the approach taken by this small UTF-8 interface is correct.
6005 unicode_width(unsigned long c)
6008 (c <= 0x115f /* Hangul Jamo */
6011 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
6013 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
6014 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
6015 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
6016 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
6017 || (c >= 0xffe0 && c <= 0xffe6)
6018 || (c >= 0x20000 && c <= 0x2fffd)
6019 || (c >= 0x30000 && c <= 0x3fffd)))
6023 return opt_tab_size;
6028 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
6029 * Illegal bytes are set one. */
6030 static const unsigned char utf8_bytes[256] = {
6031 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,
6032 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,
6033 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,
6034 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,
6035 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,
6036 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,
6037 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,
6038 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,
6041 /* Decode UTF-8 multi-byte representation into a unicode character. */
6042 static inline unsigned long
6043 utf8_to_unicode(const char *string, size_t length)
6045 unsigned long unicode;
6049 unicode = string[0];
6052 unicode = (string[0] & 0x1f) << 6;
6053 unicode += (string[1] & 0x3f);
6056 unicode = (string[0] & 0x0f) << 12;
6057 unicode += ((string[1] & 0x3f) << 6);
6058 unicode += (string[2] & 0x3f);
6061 unicode = (string[0] & 0x0f) << 18;
6062 unicode += ((string[1] & 0x3f) << 12);
6063 unicode += ((string[2] & 0x3f) << 6);
6064 unicode += (string[3] & 0x3f);
6067 unicode = (string[0] & 0x0f) << 24;
6068 unicode += ((string[1] & 0x3f) << 18);
6069 unicode += ((string[2] & 0x3f) << 12);
6070 unicode += ((string[3] & 0x3f) << 6);
6071 unicode += (string[4] & 0x3f);
6074 unicode = (string[0] & 0x01) << 30;
6075 unicode += ((string[1] & 0x3f) << 24);
6076 unicode += ((string[2] & 0x3f) << 18);
6077 unicode += ((string[3] & 0x3f) << 12);
6078 unicode += ((string[4] & 0x3f) << 6);
6079 unicode += (string[5] & 0x3f);
6082 die("Invalid unicode length");
6085 /* Invalid characters could return the special 0xfffd value but NUL
6086 * should be just as good. */
6087 return unicode > 0xffff ? 0 : unicode;
6090 /* Calculates how much of string can be shown within the given maximum width
6091 * and sets trimmed parameter to non-zero value if all of string could not be
6092 * shown. If the reserve flag is TRUE, it will reserve at least one
6093 * trailing character, which can be useful when drawing a delimiter.
6095 * Returns the number of bytes to output from string to satisfy max_width. */
6097 utf8_length(const char **start, size_t skip, int *width, size_t max_width, int *trimmed, bool reserve)
6099 const char *string = *start;
6100 const char *end = strchr(string, '\0');
6101 unsigned char last_bytes = 0;
6102 size_t last_ucwidth = 0;
6107 while (string < end) {
6108 int c = *(unsigned char *) string;
6109 unsigned char bytes = utf8_bytes[c];
6111 unsigned long unicode;
6113 if (string + bytes > end)
6116 /* Change representation to figure out whether
6117 * it is a single- or double-width character. */
6119 unicode = utf8_to_unicode(string, bytes);
6120 /* FIXME: Graceful handling of invalid unicode character. */
6124 ucwidth = unicode_width(unicode);
6126 skip -= ucwidth <= skip ? ucwidth : skip;
6130 if (*width > max_width) {
6133 if (reserve && *width == max_width) {
6134 string -= last_bytes;
6135 *width -= last_ucwidth;
6141 last_bytes = ucwidth ? bytes : 0;
6142 last_ucwidth = ucwidth;
6145 return string - *start;
6153 /* Whether or not the curses interface has been initialized. */
6154 static bool cursed = FALSE;
6156 /* Terminal hacks and workarounds. */
6157 static bool use_scroll_redrawwin;
6158 static bool use_scroll_status_wclear;
6160 /* The status window is used for polling keystrokes. */
6161 static WINDOW *status_win;
6163 /* Reading from the prompt? */
6164 static bool input_mode = FALSE;
6166 static bool status_empty = FALSE;
6168 /* Update status and title window. */
6170 report(const char *msg, ...)
6172 struct view *view = display[current_view];
6178 char buf[SIZEOF_STR];
6181 va_start(args, msg);
6182 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6183 buf[sizeof(buf) - 1] = 0;
6184 buf[sizeof(buf) - 2] = '.';
6185 buf[sizeof(buf) - 3] = '.';
6186 buf[sizeof(buf) - 4] = '.';
6192 if (!status_empty || *msg) {
6195 va_start(args, msg);
6197 wmove(status_win, 0, 0);
6198 if (view->has_scrolled && use_scroll_status_wclear)
6201 vwprintw(status_win, msg, args);
6202 status_empty = FALSE;
6204 status_empty = TRUE;
6206 wclrtoeol(status_win);
6207 wnoutrefresh(status_win);
6212 update_view_title(view);
6215 /* Controls when nodelay should be in effect when polling user input. */
6217 set_nonblocking_input(bool loading)
6219 static unsigned int loading_views;
6221 if ((loading == FALSE && loading_views-- == 1) ||
6222 (loading == TRUE && loading_views++ == 0))
6223 nodelay(status_win, loading);
6232 /* Initialize the curses library */
6233 if (isatty(STDIN_FILENO)) {
6234 cursed = !!initscr();
6237 /* Leave stdin and stdout alone when acting as a pager. */
6238 opt_tty = fopen("/dev/tty", "r+");
6240 die("Failed to open /dev/tty");
6241 cursed = !!newterm(NULL, opt_tty, opt_tty);
6245 die("Failed to initialize curses");
6247 nonl(); /* Tell curses not to do NL->CR/NL on output */
6248 cbreak(); /* Take input chars one at a time, no wait for \n */
6249 noecho(); /* Don't echo input */
6250 leaveok(stdscr, FALSE);
6255 getmaxyx(stdscr, y, x);
6256 status_win = newwin(1, 0, y - 1, 0);
6258 die("Failed to create status window");
6260 /* Enable keyboard mapping */
6261 keypad(status_win, TRUE);
6262 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6264 TABSIZE = opt_tab_size;
6265 if (opt_line_graphics) {
6266 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6269 term = getenv("XTERM_VERSION") ? NULL : getenv("COLORTERM");
6270 if (term && !strcmp(term, "gnome-terminal")) {
6271 /* In the gnome-terminal-emulator, the message from
6272 * scrolling up one line when impossible followed by
6273 * scrolling down one line causes corruption of the
6274 * status line. This is fixed by calling wclear. */
6275 use_scroll_status_wclear = TRUE;
6276 use_scroll_redrawwin = FALSE;
6278 } else if (term && !strcmp(term, "xrvt-xpm")) {
6279 /* No problems with full optimizations in xrvt-(unicode)
6281 use_scroll_status_wclear = use_scroll_redrawwin = FALSE;
6284 /* When scrolling in (u)xterm the last line in the
6285 * scrolling direction will update slowly. */
6286 use_scroll_redrawwin = TRUE;
6287 use_scroll_status_wclear = FALSE;
6292 get_input(int prompt_position)
6295 int i, key, cursor_y, cursor_x;
6297 if (prompt_position)
6301 foreach_view (view, i) {
6303 if (view_is_displayed(view) && view->has_scrolled &&
6304 use_scroll_redrawwin)
6305 redrawwin(view->win);
6306 view->has_scrolled = FALSE;
6309 /* Update the cursor position. */
6310 if (prompt_position) {
6311 getbegyx(status_win, cursor_y, cursor_x);
6312 cursor_x = prompt_position;
6314 view = display[current_view];
6315 getbegyx(view->win, cursor_y, cursor_x);
6316 cursor_x = view->width - 1;
6317 cursor_y += view->lineno - view->offset;
6319 setsyx(cursor_y, cursor_x);
6321 /* Refresh, accept single keystroke of input */
6323 key = wgetch(status_win);
6325 /* wgetch() with nodelay() enabled returns ERR when
6326 * there's no input. */
6329 } else if (key == KEY_RESIZE) {
6332 getmaxyx(stdscr, height, width);
6334 wresize(status_win, 1, width);
6335 mvwin(status_win, height - 1, 0);
6336 wnoutrefresh(status_win);
6338 redraw_display(TRUE);
6348 prompt_input(const char *prompt, input_handler handler, void *data)
6350 enum input_status status = INPUT_OK;
6351 static char buf[SIZEOF_STR];
6356 while (status == INPUT_OK || status == INPUT_SKIP) {
6359 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6360 wclrtoeol(status_win);
6362 key = get_input(pos + 1);
6367 status = pos ? INPUT_STOP : INPUT_CANCEL;
6374 status = INPUT_CANCEL;
6378 status = INPUT_CANCEL;
6382 if (pos >= sizeof(buf)) {
6383 report("Input string too long");
6387 status = handler(data, buf, key);
6388 if (status == INPUT_OK)
6389 buf[pos++] = (char) key;
6393 /* Clear the status window */
6394 status_empty = FALSE;
6397 if (status == INPUT_CANCEL)
6405 static enum input_status
6406 prompt_yesno_handler(void *data, char *buf, int c)
6408 if (c == 'y' || c == 'Y')
6410 if (c == 'n' || c == 'N')
6411 return INPUT_CANCEL;
6416 prompt_yesno(const char *prompt)
6418 char prompt2[SIZEOF_STR];
6420 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6423 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6426 static enum input_status
6427 read_prompt_handler(void *data, char *buf, int c)
6429 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6433 read_prompt(const char *prompt)
6435 return prompt_input(prompt, read_prompt_handler, NULL);
6439 * Repository properties
6442 static struct ref *refs = NULL;
6443 static size_t refs_alloc = 0;
6444 static size_t refs_size = 0;
6446 /* Id <-> ref store */
6447 static struct ref ***id_refs = NULL;
6448 static size_t id_refs_alloc = 0;
6449 static size_t id_refs_size = 0;
6452 compare_refs(const void *ref1_, const void *ref2_)
6454 const struct ref *ref1 = *(const struct ref **)ref1_;
6455 const struct ref *ref2 = *(const struct ref **)ref2_;
6457 if (ref1->tag != ref2->tag)
6458 return ref2->tag - ref1->tag;
6459 if (ref1->ltag != ref2->ltag)
6460 return ref2->ltag - ref2->ltag;
6461 if (ref1->head != ref2->head)
6462 return ref2->head - ref1->head;
6463 if (ref1->tracked != ref2->tracked)
6464 return ref2->tracked - ref1->tracked;
6465 if (ref1->remote != ref2->remote)
6466 return ref2->remote - ref1->remote;
6467 return strcmp(ref1->name, ref2->name);
6470 static struct ref **
6471 get_refs(const char *id)
6473 struct ref ***tmp_id_refs;
6474 struct ref **ref_list = NULL;
6475 size_t ref_list_alloc = 0;
6476 size_t ref_list_size = 0;
6479 for (i = 0; i < id_refs_size; i++)
6480 if (!strcmp(id, id_refs[i][0]->id))
6483 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6488 id_refs = tmp_id_refs;
6490 for (i = 0; i < refs_size; i++) {
6493 if (strcmp(id, refs[i].id))
6496 tmp = realloc_items(ref_list, &ref_list_alloc,
6497 ref_list_size + 1, sizeof(*ref_list));
6505 ref_list[ref_list_size] = &refs[i];
6506 /* XXX: The properties of the commit chains ensures that we can
6507 * safely modify the shared ref. The repo references will
6508 * always be similar for the same id. */
6509 ref_list[ref_list_size]->next = 1;
6515 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6516 ref_list[ref_list_size - 1]->next = 0;
6517 id_refs[id_refs_size++] = ref_list;
6524 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6529 bool remote = FALSE;
6530 bool tracked = FALSE;
6531 bool check_replace = FALSE;
6534 if (!prefixcmp(name, "refs/tags/")) {
6535 if (!suffixcmp(name, namelen, "^{}")) {
6538 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6539 check_replace = TRUE;
6545 namelen -= STRING_SIZE("refs/tags/");
6546 name += STRING_SIZE("refs/tags/");
6548 } else if (!prefixcmp(name, "refs/remotes/")) {
6550 namelen -= STRING_SIZE("refs/remotes/");
6551 name += STRING_SIZE("refs/remotes/");
6552 tracked = !strcmp(opt_remote, name);
6554 } else if (!prefixcmp(name, "refs/heads/")) {
6555 namelen -= STRING_SIZE("refs/heads/");
6556 name += STRING_SIZE("refs/heads/");
6557 head = !strncmp(opt_head, name, namelen);
6559 } else if (!strcmp(name, "HEAD")) {
6560 string_ncopy(opt_head_rev, id, idlen);
6564 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6565 /* it's an annotated tag, replace the previous sha1 with the
6566 * resolved commit id; relies on the fact git-ls-remote lists
6567 * the commit id of an annotated tag right before the commit id
6569 refs[refs_size - 1].ltag = ltag;
6570 string_copy_rev(refs[refs_size - 1].id, id);
6574 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6578 ref = &refs[refs_size++];
6579 ref->name = malloc(namelen + 1);
6583 strncpy(ref->name, name, namelen);
6584 ref->name[namelen] = 0;
6588 ref->remote = remote;
6589 ref->tracked = tracked;
6590 string_copy_rev(ref->id, id);
6598 static const char *ls_remote_argv[SIZEOF_ARG] = {
6599 "git", "ls-remote", ".", NULL
6601 static bool init = FALSE;
6604 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6611 while (refs_size > 0)
6612 free(refs[--refs_size].name);
6613 while (id_refs_size > 0)
6614 free(id_refs[--id_refs_size]);
6616 return run_io_load(ls_remote_argv, "\t", read_ref);
6620 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6622 if (!strcmp(name, "i18n.commitencoding"))
6623 string_ncopy(opt_encoding, value, valuelen);
6625 if (!strcmp(name, "core.editor"))
6626 string_ncopy(opt_editor, value, valuelen);
6628 /* branch.<head>.remote */
6630 !strncmp(name, "branch.", 7) &&
6631 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6632 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6633 string_ncopy(opt_remote, value, valuelen);
6635 if (*opt_head && *opt_remote &&
6636 !strncmp(name, "branch.", 7) &&
6637 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6638 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6639 size_t from = strlen(opt_remote);
6641 if (!prefixcmp(value, "refs/heads/")) {
6642 value += STRING_SIZE("refs/heads/");
6643 valuelen -= STRING_SIZE("refs/heads/");
6646 if (!string_format_from(opt_remote, &from, "/%s", value))
6654 load_git_config(void)
6656 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6658 return run_io_load(config_list_argv, "=", read_repo_config_option);
6662 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6664 if (!opt_git_dir[0]) {
6665 string_ncopy(opt_git_dir, name, namelen);
6667 } else if (opt_is_inside_work_tree == -1) {
6668 /* This can be 3 different values depending on the
6669 * version of git being used. If git-rev-parse does not
6670 * understand --is-inside-work-tree it will simply echo
6671 * the option else either "true" or "false" is printed.
6672 * Default to true for the unknown case. */
6673 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6675 } else if (*name == '.') {
6676 string_ncopy(opt_cdup, name, namelen);
6679 string_ncopy(opt_prefix, name, namelen);
6686 load_repo_info(void)
6688 const char *head_argv[] = {
6689 "git", "symbolic-ref", "HEAD", NULL
6691 const char *rev_parse_argv[] = {
6692 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6693 "--show-cdup", "--show-prefix", NULL
6696 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6697 chomp_string(opt_head);
6698 if (!prefixcmp(opt_head, "refs/heads/")) {
6699 char *offset = opt_head + STRING_SIZE("refs/heads/");
6701 memmove(opt_head, offset, strlen(offset) + 1);
6705 return run_io_load(rev_parse_argv, "=", read_repo_info);
6713 static void __NORETURN
6716 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6722 static void __NORETURN
6723 die(const char *err, ...)
6729 va_start(args, err);
6730 fputs("tig: ", stderr);
6731 vfprintf(stderr, err, args);
6732 fputs("\n", stderr);
6739 warn(const char *msg, ...)
6743 va_start(args, msg);
6744 fputs("tig warning: ", stderr);
6745 vfprintf(stderr, msg, args);
6746 fputs("\n", stderr);
6751 parse_options(int argc, const char *argv[])
6753 enum request request = REQ_VIEW_MAIN;
6754 const char *subcommand;
6755 bool seen_dashdash = FALSE;
6756 /* XXX: This is vulnerable to the user overriding options
6757 * required for the main view parser. */
6758 const char *custom_argv[SIZEOF_ARG] = {
6759 "git", "log", "--no-color", "--pretty=raw", "--parents",
6760 "--topo-order", NULL
6764 if (!isatty(STDIN_FILENO)) {
6765 io_open(&VIEW(REQ_VIEW_PAGER)->io, "");
6766 return REQ_VIEW_PAGER;
6772 subcommand = argv[1];
6773 if (!strcmp(subcommand, "status")) {
6775 warn("ignoring arguments after `%s'", subcommand);
6776 return REQ_VIEW_STATUS;
6778 } else if (!strcmp(subcommand, "blame")) {
6779 if (argc <= 2 || argc > 4)
6780 die("invalid number of options to blame\n\n%s", usage);
6784 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
6788 string_ncopy(opt_file, argv[i], strlen(argv[i]));
6789 return REQ_VIEW_BLAME;
6791 } else if (!strcmp(subcommand, "show")) {
6792 request = REQ_VIEW_DIFF;
6799 custom_argv[1] = subcommand;
6803 for (i = 1 + !!subcommand; i < argc; i++) {
6804 const char *opt = argv[i];
6806 if (seen_dashdash || !strcmp(opt, "--")) {
6807 seen_dashdash = TRUE;
6809 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
6810 printf("tig version %s\n", TIG_VERSION);
6813 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
6814 printf("%s\n", usage);
6818 custom_argv[j++] = opt;
6819 if (j >= ARRAY_SIZE(custom_argv))
6820 die("command too long");
6823 if (!prepare_update(VIEW(request), custom_argv, NULL, FORMAT_NONE))
6824 die("Failed to format arguments");
6830 main(int argc, const char *argv[])
6832 enum request request = parse_options(argc, argv);
6836 signal(SIGINT, quit);
6838 if (setlocale(LC_ALL, "")) {
6839 char *codeset = nl_langinfo(CODESET);
6841 string_ncopy(opt_codeset, codeset, strlen(codeset));
6844 if (load_repo_info() == ERR)
6845 die("Failed to load repo info.");
6847 if (load_options() == ERR)
6848 die("Failed to load user config.");
6850 if (load_git_config() == ERR)
6851 die("Failed to load repo config.");
6853 /* Require a git repository unless when running in pager mode. */
6854 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6855 die("Not a git repository");
6857 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6860 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6861 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6862 if (opt_iconv == ICONV_NONE)
6863 die("Failed to initialize character set conversion");
6866 if (load_refs() == ERR)
6867 die("Failed to load refs.");
6869 foreach_view (view, i)
6870 argv_from_env(view->ops->argv, view->cmd_env);
6874 if (request != REQ_NONE)
6875 open_view(NULL, request, OPEN_PREPARED);
6876 request = request == REQ_NONE ? REQ_VIEW_MAIN : REQ_NONE;
6878 while (view_driver(display[current_view], request)) {
6879 int key = get_input(0);
6881 view = display[current_view];
6882 request = get_keybinding(view->keymap, key);
6884 /* Some low-level request handling. This keeps access to
6885 * status_win restricted. */
6889 char *cmd = read_prompt(":");
6892 struct view *next = VIEW(REQ_VIEW_PAGER);
6893 const char *argv[SIZEOF_ARG] = { "git" };
6896 /* When running random commands, initially show the
6897 * command in the title. However, it maybe later be
6898 * overwritten if a commit line is selected. */
6899 string_ncopy(next->ref, cmd, strlen(cmd));
6901 if (!argv_from_string(argv, &argc, cmd)) {
6902 report("Too many arguments");
6903 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6904 report("Failed to format command");
6906 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6914 case REQ_SEARCH_BACK:
6916 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6917 char *search = read_prompt(prompt);
6920 string_ncopy(opt_search, search, strlen(search));
6921 else if (*opt_search)
6922 request = request == REQ_SEARCH ?