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
3853 tree_entry(view, LINE_TREE_PARENT, opt_path, NULL, NULL);
3854 report("Tree is empty");
3858 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3859 report("Failed to load tree data");
3863 done_io(view->pipe);
3868 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3869 parse_author_line(text + STRING_SIZE("author "),
3870 author_name, sizeof(author_name), &author_time);
3872 } else if (*text == ':') {
3874 size_t annotated = 1;
3877 pos = strchr(text, '\t');
3881 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3882 text += strlen(opt_prefix);
3883 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3884 text += strlen(opt_path);
3885 pos = strchr(text, '/');
3889 for (i = 1; i < view->lines; i++) {
3890 struct line *line = &view->line[i];
3891 struct tree_entry *entry = line->data;
3893 annotated += !!*entry->author;
3894 if (*entry->author || strcmp(entry->name, text))
3897 string_copy(entry->author, author_name);
3898 memcpy(&entry->time, &author_time, sizeof(entry->time));
3903 if (annotated == view->lines)
3904 kill_io(view->pipe);
3910 tree_read(struct view *view, char *text)
3912 static bool read_date = FALSE;
3913 struct tree_entry *data;
3914 struct line *entry, *line;
3915 enum line_type type;
3916 size_t textlen = text ? strlen(text) : 0;
3917 char *path = text + SIZEOF_TREE_ATTR;
3919 if (read_date || !text)
3920 return tree_read_date(view, text, &read_date);
3922 if (textlen <= SIZEOF_TREE_ATTR)
3924 if (view->lines == 0 &&
3925 !tree_entry(view, LINE_TREE_PARENT, opt_path, NULL, NULL))
3928 /* Strip the path part ... */
3930 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3931 size_t striplen = strlen(opt_path);
3933 if (pathlen > striplen)
3934 memmove(path, path + striplen,
3935 pathlen - striplen + 1);
3937 /* Insert "link" to parent directory. */
3938 if (view->lines == 1 &&
3939 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3943 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3944 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3949 /* Skip "Directory ..." and ".." line. */
3950 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3951 if (tree_compare_entry(line, entry) <= 0)
3954 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3958 for (; line <= entry; line++)
3959 line->dirty = line->cleareol = 1;
3963 if (tree_lineno > view->lineno) {
3964 view->lineno = tree_lineno;
3972 tree_draw(struct view *view, struct line *line, unsigned int lineno)
3974 struct tree_entry *entry = line->data;
3976 if (line->type == LINE_TREE_PARENT) {
3977 if (draw_text(view, line->type, "Directory path /", TRUE))
3980 char mode[11] = "-r--r--r--";
3982 if (S_ISDIR(entry->mode)) {
3983 mode[3] = mode[6] = mode[9] = 'x';
3986 if (S_ISLNK(entry->mode))
3988 if (entry->mode & S_IWUSR)
3990 if (entry->mode & S_IXUSR)
3992 if (entry->mode & S_IXGRP)
3994 if (entry->mode & S_IXOTH)
3996 if (draw_field(view, LINE_TREE_MODE, mode, 11, TRUE))
3999 if (opt_author && draw_author(view, entry->author))
4002 if (opt_date && draw_date(view, *entry->author ? &entry->time : NULL))
4005 if (draw_text(view, line->type, entry->name, TRUE))
4013 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
4014 int fd = mkstemp(file);
4017 report("Failed to create temporary file");
4018 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
4019 report("Failed to save blob data to file");
4021 open_editor(FALSE, file);
4027 tree_request(struct view *view, enum request request, struct line *line)
4029 enum open_flags flags;
4032 case REQ_VIEW_BLAME:
4033 if (line->type != LINE_TREE_FILE) {
4034 report("Blame only supported for files");
4038 string_copy(opt_ref, view->vid);
4042 if (line->type != LINE_TREE_FILE) {
4043 report("Edit only supported for files");
4044 } else if (!is_head_commit(view->vid)) {
4047 open_editor(TRUE, opt_file);
4053 /* quit view if at top of tree */
4054 return REQ_VIEW_CLOSE;
4057 line = &view->line[1];
4067 /* Cleanup the stack if the tree view is at a different tree. */
4068 while (!*opt_path && tree_stack)
4069 pop_tree_stack_entry();
4071 switch (line->type) {
4073 /* Depending on whether it is a subdir or parent (updir?) link
4074 * mangle the path buffer. */
4075 if (line == &view->line[1] && *opt_path) {
4076 pop_tree_stack_entry();
4079 const char *basename = tree_path(line);
4081 push_tree_stack_entry(basename, view->lineno);
4084 /* Trees and subtrees share the same ID, so they are not not
4085 * unique like blobs. */
4086 flags = OPEN_RELOAD;
4087 request = REQ_VIEW_TREE;
4090 case LINE_TREE_FILE:
4091 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4092 request = REQ_VIEW_BLOB;
4099 open_view(view, request, flags);
4100 if (request == REQ_VIEW_TREE)
4101 view->lineno = tree_lineno;
4107 tree_select(struct view *view, struct line *line)
4109 struct tree_entry *entry = line->data;
4111 if (line->type == LINE_TREE_FILE) {
4112 string_copy_rev(ref_blob, entry->id);
4113 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4115 } else if (line->type != LINE_TREE_DIR) {
4119 string_copy_rev(view->ref, entry->id);
4122 static const char *tree_argv[SIZEOF_ARG] = {
4123 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4126 static struct view_ops tree_ops = {
4138 blob_read(struct view *view, char *line)
4142 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4146 blob_request(struct view *view, enum request request, struct line *line)
4153 return pager_request(view, request, line);
4157 static const char *blob_argv[SIZEOF_ARG] = {
4158 "git", "cat-file", "blob", "%(blob)", NULL
4161 static struct view_ops blob_ops = {
4175 * Loading the blame view is a two phase job:
4177 * 1. File content is read either using opt_file from the
4178 * filesystem or using git-cat-file.
4179 * 2. Then blame information is incrementally added by
4180 * reading output from git-blame.
4183 static const char *blame_head_argv[] = {
4184 "git", "blame", "--incremental", "--", "%(file)", NULL
4187 static const char *blame_ref_argv[] = {
4188 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4191 static const char *blame_cat_file_argv[] = {
4192 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4195 struct blame_commit {
4196 char id[SIZEOF_REV]; /* SHA1 ID. */
4197 char title[128]; /* First line of the commit message. */
4198 char author[75]; /* Author of the commit. */
4199 struct tm time; /* Date from the author ident. */
4200 char filename[128]; /* Name of file. */
4201 bool has_previous; /* Was a "previous" line detected. */
4205 struct blame_commit *commit;
4210 blame_open(struct view *view)
4212 if (*opt_ref || !io_open(&view->io, opt_file)) {
4213 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4217 setup_update(view, opt_file);
4218 string_format(view->ref, "%s ...", opt_file);
4223 static struct blame_commit *
4224 get_blame_commit(struct view *view, const char *id)
4228 for (i = 0; i < view->lines; i++) {
4229 struct blame *blame = view->line[i].data;
4234 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4235 return blame->commit;
4239 struct blame_commit *commit = calloc(1, sizeof(*commit));
4242 string_ncopy(commit->id, id, SIZEOF_REV);
4248 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4250 const char *pos = *posref;
4253 pos = strchr(pos + 1, ' ');
4254 if (!pos || !isdigit(pos[1]))
4256 *number = atoi(pos + 1);
4257 if (*number < min || *number > max)
4264 static struct blame_commit *
4265 parse_blame_commit(struct view *view, const char *text, int *blamed)
4267 struct blame_commit *commit;
4268 struct blame *blame;
4269 const char *pos = text + SIZEOF_REV - 1;
4273 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
4276 if (!parse_number(&pos, &lineno, 1, view->lines) ||
4277 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4280 commit = get_blame_commit(view, text);
4286 struct line *line = &view->line[lineno + group - 1];
4289 blame->commit = commit;
4297 blame_read_file(struct view *view, const char *line, bool *read_file)
4300 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4303 if (view->lines == 0 && !view->parent)
4304 die("No blame exist for %s", view->vid);
4306 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4307 report("Failed to load blame data");
4311 done_io(view->pipe);
4317 size_t linelen = string_expand_length(line, opt_tab_size);
4318 struct blame *blame = malloc(sizeof(*blame) + linelen);
4323 blame->commit = NULL;
4324 string_expand(blame->text, linelen + 1, line, opt_tab_size);
4325 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4330 match_blame_header(const char *name, char **line)
4332 size_t namelen = strlen(name);
4333 bool matched = !strncmp(name, *line, namelen);
4342 blame_read(struct view *view, char *line)
4344 static struct blame_commit *commit = NULL;
4345 static int blamed = 0;
4346 static time_t author_time;
4347 static bool read_file = TRUE;
4350 return blame_read_file(view, line, &read_file);
4357 string_format(view->ref, "%s", view->vid);
4358 if (view_is_displayed(view)) {
4359 update_view_title(view);
4360 redraw_view_from(view, 0);
4366 commit = parse_blame_commit(view, line, &blamed);
4367 string_format(view->ref, "%s %2d%%", view->vid,
4368 view->lines ? blamed * 100 / view->lines : 0);
4370 } else if (match_blame_header("author ", &line)) {
4371 string_ncopy(commit->author, line, strlen(line));
4373 } else if (match_blame_header("author-time ", &line)) {
4374 author_time = (time_t) atol(line);
4376 } else if (match_blame_header("author-tz ", &line)) {
4379 tz = ('0' - line[1]) * 60 * 60 * 10;
4380 tz += ('0' - line[2]) * 60 * 60;
4381 tz += ('0' - line[3]) * 60;
4382 tz += ('0' - line[4]) * 60;
4388 gmtime_r(&author_time, &commit->time);
4390 } else if (match_blame_header("summary ", &line)) {
4391 string_ncopy(commit->title, line, strlen(line));
4393 } else if (match_blame_header("previous ", &line)) {
4394 commit->has_previous = TRUE;
4396 } else if (match_blame_header("filename ", &line)) {
4397 string_ncopy(commit->filename, line, strlen(line));
4405 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4407 struct blame *blame = line->data;
4408 struct tm *time = NULL;
4409 const char *id = NULL, *author = NULL;
4411 if (blame->commit && *blame->commit->filename) {
4412 id = blame->commit->id;
4413 author = blame->commit->author;
4414 time = &blame->commit->time;
4417 if (opt_date && draw_date(view, time))
4420 if (opt_author && draw_author(view, author))
4423 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4426 if (draw_lineno(view, lineno))
4429 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4434 check_blame_commit(struct blame *blame)
4437 report("Commit data not loaded yet");
4438 else if (!strcmp(blame->commit->id, NULL_ID))
4439 report("No commit exist for the selected line");
4446 blame_request(struct view *view, enum request request, struct line *line)
4448 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4449 struct blame *blame = line->data;
4452 case REQ_VIEW_BLAME:
4453 if (check_blame_commit(blame)) {
4454 string_copy(opt_ref, blame->commit->id);
4455 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4460 if (check_blame_commit(blame) &&
4461 select_commit_parent(blame->commit->id, opt_ref))
4462 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4466 if (!blame->commit) {
4467 report("No commit loaded yet");
4471 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4472 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4475 if (!strcmp(blame->commit->id, NULL_ID)) {
4476 struct view *diff = VIEW(REQ_VIEW_DIFF);
4477 const char *diff_index_argv[] = {
4478 "git", "diff-index", "--root", "--patch-with-stat",
4479 "-C", "-M", "HEAD", "--", view->vid, NULL
4482 if (!blame->commit->has_previous) {
4483 diff_index_argv[1] = "diff";
4484 diff_index_argv[2] = "--no-color";
4485 diff_index_argv[6] = "--";
4486 diff_index_argv[7] = "/dev/null";
4489 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4490 report("Failed to allocate diff command");
4493 flags |= OPEN_PREPARED;
4496 open_view(view, REQ_VIEW_DIFF, flags);
4497 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4498 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4509 blame_grep(struct view *view, struct line *line)
4511 struct blame *blame = line->data;
4512 struct blame_commit *commit = blame->commit;
4515 #define MATCH(text, on) \
4516 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4519 char buf[DATE_COLS + 1];
4521 if (MATCH(commit->title, 1) ||
4522 MATCH(commit->author, opt_author) ||
4523 MATCH(commit->id, opt_date))
4526 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4531 return MATCH(blame->text, 1);
4537 blame_select(struct view *view, struct line *line)
4539 struct blame *blame = line->data;
4540 struct blame_commit *commit = blame->commit;
4545 if (!strcmp(commit->id, NULL_ID))
4546 string_ncopy(ref_commit, "HEAD", 4);
4548 string_copy_rev(ref_commit, commit->id);
4551 static struct view_ops blame_ops = {
4570 char rev[SIZEOF_REV];
4571 char name[SIZEOF_STR];
4575 char rev[SIZEOF_REV];
4576 char name[SIZEOF_STR];
4580 static char status_onbranch[SIZEOF_STR];
4581 static struct status stage_status;
4582 static enum line_type stage_line_type;
4583 static size_t stage_chunks;
4584 static int *stage_chunk;
4586 /* This should work even for the "On branch" line. */
4588 status_has_none(struct view *view, struct line *line)
4590 return line < view->line + view->lines && !line[1].data;
4593 /* Get fields from the diff line:
4594 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4597 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4599 const char *old_mode = buf + 1;
4600 const char *new_mode = buf + 8;
4601 const char *old_rev = buf + 15;
4602 const char *new_rev = buf + 56;
4603 const char *status = buf + 97;
4606 old_mode[-1] != ':' ||
4607 new_mode[-1] != ' ' ||
4608 old_rev[-1] != ' ' ||
4609 new_rev[-1] != ' ' ||
4613 file->status = *status;
4615 string_copy_rev(file->old.rev, old_rev);
4616 string_copy_rev(file->new.rev, new_rev);
4618 file->old.mode = strtoul(old_mode, NULL, 8);
4619 file->new.mode = strtoul(new_mode, NULL, 8);
4621 file->old.name[0] = file->new.name[0] = 0;
4627 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4629 struct status *unmerged = NULL;
4633 if (!run_io(&io, argv, NULL, IO_RD))
4636 add_line_data(view, NULL, type);
4638 while ((buf = io_get(&io, 0, TRUE))) {
4639 struct status *file = unmerged;
4642 file = calloc(1, sizeof(*file));
4643 if (!file || !add_line_data(view, file, type))
4647 /* Parse diff info part. */
4649 file->status = status;
4651 string_copy(file->old.rev, NULL_ID);
4653 } else if (!file->status || file == unmerged) {
4654 if (!status_get_diff(file, buf, strlen(buf)))
4657 buf = io_get(&io, 0, TRUE);
4661 /* Collapse all 'M'odified entries that follow a
4662 * associated 'U'nmerged entry. */
4663 if (unmerged == file) {
4664 unmerged->status = 'U';
4666 } else if (file->status == 'U') {
4671 /* Grab the old name for rename/copy. */
4672 if (!*file->old.name &&
4673 (file->status == 'R' || file->status == 'C')) {
4674 string_ncopy(file->old.name, buf, strlen(buf));
4676 buf = io_get(&io, 0, TRUE);
4681 /* git-ls-files just delivers a NUL separated list of
4682 * file names similar to the second half of the
4683 * git-diff-* output. */
4684 string_ncopy(file->new.name, buf, strlen(buf));
4685 if (!*file->old.name)
4686 string_copy(file->old.name, file->new.name);
4690 if (io_error(&io)) {
4696 if (!view->line[view->lines - 1].data)
4697 add_line_data(view, NULL, LINE_STAT_NONE);
4703 /* Don't show unmerged entries in the staged section. */
4704 static const char *status_diff_index_argv[] = {
4705 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4706 "--cached", "-M", "HEAD", NULL
4709 static const char *status_diff_files_argv[] = {
4710 "git", "diff-files", "-z", NULL
4713 static const char *status_list_other_argv[] = {
4714 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4717 static const char *status_list_no_head_argv[] = {
4718 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4721 static const char *update_index_argv[] = {
4722 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4725 /* Restore the previous line number to stay in the context or select a
4726 * line with something that can be updated. */
4728 status_restore(struct view *view)
4730 if (view->p_lineno >= view->lines)
4731 view->p_lineno = view->lines - 1;
4732 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4734 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4737 /* If the above fails, always skip the "On branch" line. */
4738 if (view->p_lineno < view->lines)
4739 view->lineno = view->p_lineno;
4743 if (view->lineno < view->offset)
4744 view->offset = view->lineno;
4745 else if (view->offset + view->height <= view->lineno)
4746 view->offset = view->lineno - view->height + 1;
4748 view->p_restore = FALSE;
4751 /* First parse staged info using git-diff-index(1), then parse unstaged
4752 * info using git-diff-files(1), and finally untracked files using
4753 * git-ls-files(1). */
4755 status_open(struct view *view)
4759 add_line_data(view, NULL, LINE_STAT_HEAD);
4760 if (is_initial_commit())
4761 string_copy(status_onbranch, "Initial commit");
4762 else if (!*opt_head)
4763 string_copy(status_onbranch, "Not currently on any branch");
4764 else if (!string_format(status_onbranch, "On branch %s", opt_head))
4767 run_io_bg(update_index_argv);
4769 if (is_initial_commit()) {
4770 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4772 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4776 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4777 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4780 /* Restore the exact position or use the specialized restore
4782 if (!view->p_restore)
4783 status_restore(view);
4788 status_draw(struct view *view, struct line *line, unsigned int lineno)
4790 struct status *status = line->data;
4791 enum line_type type;
4795 switch (line->type) {
4796 case LINE_STAT_STAGED:
4797 type = LINE_STAT_SECTION;
4798 text = "Changes to be committed:";
4801 case LINE_STAT_UNSTAGED:
4802 type = LINE_STAT_SECTION;
4803 text = "Changed but not updated:";
4806 case LINE_STAT_UNTRACKED:
4807 type = LINE_STAT_SECTION;
4808 text = "Untracked files:";
4811 case LINE_STAT_NONE:
4812 type = LINE_DEFAULT;
4813 text = " (no files)";
4816 case LINE_STAT_HEAD:
4817 type = LINE_STAT_HEAD;
4818 text = status_onbranch;
4825 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4827 buf[0] = status->status;
4828 if (draw_text(view, line->type, buf, TRUE))
4830 type = LINE_DEFAULT;
4831 text = status->new.name;
4834 draw_text(view, type, text, TRUE);
4839 status_enter(struct view *view, struct line *line)
4841 struct status *status = line->data;
4842 const char *oldpath = status ? status->old.name : NULL;
4843 /* Diffs for unmerged entries are empty when passing the new
4844 * path, so leave it empty. */
4845 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4847 enum open_flags split;
4848 struct view *stage = VIEW(REQ_VIEW_STAGE);
4850 if (line->type == LINE_STAT_NONE ||
4851 (!status && line[1].type == LINE_STAT_NONE)) {
4852 report("No file to diff");
4856 switch (line->type) {
4857 case LINE_STAT_STAGED:
4858 if (is_initial_commit()) {
4859 const char *no_head_diff_argv[] = {
4860 "git", "diff", "--no-color", "--patch-with-stat",
4861 "--", "/dev/null", newpath, NULL
4864 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4867 const char *index_show_argv[] = {
4868 "git", "diff-index", "--root", "--patch-with-stat",
4869 "-C", "-M", "--cached", "HEAD", "--",
4870 oldpath, newpath, NULL
4873 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4878 info = "Staged changes to %s";
4880 info = "Staged changes";
4883 case LINE_STAT_UNSTAGED:
4885 const char *files_show_argv[] = {
4886 "git", "diff-files", "--root", "--patch-with-stat",
4887 "-C", "-M", "--", oldpath, newpath, NULL
4890 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4893 info = "Unstaged changes to %s";
4895 info = "Unstaged changes";
4898 case LINE_STAT_UNTRACKED:
4900 report("No file to show");
4904 if (!suffixcmp(status->new.name, -1, "/")) {
4905 report("Cannot display a directory");
4909 if (!prepare_update_file(stage, newpath))
4911 info = "Untracked file %s";
4914 case LINE_STAT_HEAD:
4918 die("line type %d not handled in switch", line->type);
4921 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4922 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
4923 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4925 stage_status = *status;
4927 memset(&stage_status, 0, sizeof(stage_status));
4930 stage_line_type = line->type;
4932 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4939 status_exists(struct status *status, enum line_type type)
4941 struct view *view = VIEW(REQ_VIEW_STATUS);
4942 unsigned long lineno;
4944 for (lineno = 0; lineno < view->lines; lineno++) {
4945 struct line *line = &view->line[lineno];
4946 struct status *pos = line->data;
4948 if (line->type != type)
4950 if (!pos && (!status || !status->status) && line[1].data) {
4951 select_view_line(view, lineno);
4954 if (pos && !strcmp(status->new.name, pos->new.name)) {
4955 select_view_line(view, lineno);
4965 status_update_prepare(struct io *io, enum line_type type)
4967 const char *staged_argv[] = {
4968 "git", "update-index", "-z", "--index-info", NULL
4970 const char *others_argv[] = {
4971 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4975 case LINE_STAT_STAGED:
4976 return run_io(io, staged_argv, opt_cdup, IO_WR);
4978 case LINE_STAT_UNSTAGED:
4979 return run_io(io, others_argv, opt_cdup, IO_WR);
4981 case LINE_STAT_UNTRACKED:
4982 return run_io(io, others_argv, NULL, IO_WR);
4985 die("line type %d not handled in switch", type);
4991 status_update_write(struct io *io, struct status *status, enum line_type type)
4993 char buf[SIZEOF_STR];
4997 case LINE_STAT_STAGED:
4998 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
5001 status->old.name, 0))
5005 case LINE_STAT_UNSTAGED:
5006 case LINE_STAT_UNTRACKED:
5007 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
5012 die("line type %d not handled in switch", type);
5015 return io_write(io, buf, bufsize);
5019 status_update_file(struct status *status, enum line_type type)
5024 if (!status_update_prepare(&io, type))
5027 result = status_update_write(&io, status, type);
5033 status_update_files(struct view *view, struct line *line)
5037 struct line *pos = view->line + view->lines;
5041 if (!status_update_prepare(&io, line->type))
5044 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5047 for (file = 0, done = 0; result && file < files; line++, file++) {
5048 int almost_done = file * 100 / files;
5050 if (almost_done > done) {
5052 string_format(view->ref, "updating file %u of %u (%d%% done)",
5054 update_view_title(view);
5056 result = status_update_write(&io, line->data, line->type);
5064 status_update(struct view *view)
5066 struct line *line = &view->line[view->lineno];
5068 assert(view->lines);
5071 /* This should work even for the "On branch" line. */
5072 if (line < view->line + view->lines && !line[1].data) {
5073 report("Nothing to update");
5077 if (!status_update_files(view, line + 1)) {
5078 report("Failed to update file status");
5082 } else if (!status_update_file(line->data, line->type)) {
5083 report("Failed to update file status");
5091 status_revert(struct status *status, enum line_type type, bool has_none)
5093 if (!status || type != LINE_STAT_UNSTAGED) {
5094 if (type == LINE_STAT_STAGED) {
5095 report("Cannot revert changes to staged files");
5096 } else if (type == LINE_STAT_UNTRACKED) {
5097 report("Cannot revert changes to untracked files");
5098 } else if (has_none) {
5099 report("Nothing to revert");
5101 report("Cannot revert changes to multiple files");
5106 char mode[10] = "100644";
5107 const char *reset_argv[] = {
5108 "git", "update-index", "--cacheinfo", mode,
5109 status->old.rev, status->old.name, NULL
5111 const char *checkout_argv[] = {
5112 "git", "checkout", "--", status->old.name, NULL
5115 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5117 string_format(mode, "%o", status->old.mode);
5118 return (status->status != 'U' || run_io_fg(reset_argv, opt_cdup)) &&
5119 run_io_fg(checkout_argv, opt_cdup);
5124 status_request(struct view *view, enum request request, struct line *line)
5126 struct status *status = line->data;
5129 case REQ_STATUS_UPDATE:
5130 if (!status_update(view))
5134 case REQ_STATUS_REVERT:
5135 if (!status_revert(status, line->type, status_has_none(view, line)))
5139 case REQ_STATUS_MERGE:
5140 if (!status || status->status != 'U') {
5141 report("Merging only possible for files with unmerged status ('U').");
5144 open_mergetool(status->new.name);
5150 if (status->status == 'D') {
5151 report("File has been deleted.");
5155 open_editor(status->status != '?', status->new.name);
5158 case REQ_VIEW_BLAME:
5160 string_copy(opt_file, status->new.name);
5166 /* After returning the status view has been split to
5167 * show the stage view. No further reloading is
5169 status_enter(view, line);
5173 /* Simply reload the view. */
5180 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5186 status_select(struct view *view, struct line *line)
5188 struct status *status = line->data;
5189 char file[SIZEOF_STR] = "all files";
5193 if (status && !string_format(file, "'%s'", status->new.name))
5196 if (!status && line[1].type == LINE_STAT_NONE)
5199 switch (line->type) {
5200 case LINE_STAT_STAGED:
5201 text = "Press %s to unstage %s for commit";
5204 case LINE_STAT_UNSTAGED:
5205 text = "Press %s to stage %s for commit";
5208 case LINE_STAT_UNTRACKED:
5209 text = "Press %s to stage %s for addition";
5212 case LINE_STAT_HEAD:
5213 case LINE_STAT_NONE:
5214 text = "Nothing to update";
5218 die("line type %d not handled in switch", line->type);
5221 if (status && status->status == 'U') {
5222 text = "Press %s to resolve conflict in %s";
5223 key = get_key(REQ_STATUS_MERGE);
5226 key = get_key(REQ_STATUS_UPDATE);
5229 string_format(view->ref, text, key, file);
5233 status_grep(struct view *view, struct line *line)
5235 struct status *status = line->data;
5236 enum { S_STATUS, S_NAME, S_END } state;
5243 for (state = S_STATUS; state < S_END; state++) {
5247 case S_NAME: text = status->new.name; break;
5249 buf[0] = status->status;
5257 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5264 static struct view_ops status_ops = {
5277 stage_diff_write(struct io *io, struct line *line, struct line *end)
5279 while (line < end) {
5280 if (!io_write(io, line->data, strlen(line->data)) ||
5281 !io_write(io, "\n", 1))
5284 if (line->type == LINE_DIFF_CHUNK ||
5285 line->type == LINE_DIFF_HEADER)
5292 static struct line *
5293 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5295 for (; view->line < line; line--)
5296 if (line->type == type)
5303 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5305 const char *apply_argv[SIZEOF_ARG] = {
5306 "git", "apply", "--whitespace=nowarn", NULL
5308 struct line *diff_hdr;
5312 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5317 apply_argv[argc++] = "--cached";
5318 if (revert || stage_line_type == LINE_STAT_STAGED)
5319 apply_argv[argc++] = "-R";
5320 apply_argv[argc++] = "-";
5321 apply_argv[argc++] = NULL;
5322 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5325 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5326 !stage_diff_write(&io, chunk, view->line + view->lines))
5330 run_io_bg(update_index_argv);
5332 return chunk ? TRUE : FALSE;
5336 stage_update(struct view *view, struct line *line)
5338 struct line *chunk = NULL;
5340 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5341 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5344 if (!stage_apply_chunk(view, chunk, FALSE)) {
5345 report("Failed to apply chunk");
5349 } else if (!stage_status.status) {
5350 view = VIEW(REQ_VIEW_STATUS);
5352 for (line = view->line; line < view->line + view->lines; line++)
5353 if (line->type == stage_line_type)
5356 if (!status_update_files(view, line + 1)) {
5357 report("Failed to update files");
5361 } else if (!status_update_file(&stage_status, stage_line_type)) {
5362 report("Failed to update file");
5370 stage_revert(struct view *view, struct line *line)
5372 struct line *chunk = NULL;
5374 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5375 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5378 if (!prompt_yesno("Are you sure you want to revert changes?"))
5381 if (!stage_apply_chunk(view, chunk, TRUE)) {
5382 report("Failed to revert chunk");
5388 return status_revert(stage_status.status ? &stage_status : NULL,
5389 stage_line_type, FALSE);
5395 stage_next(struct view *view, struct line *line)
5399 if (!stage_chunks) {
5400 static size_t alloc = 0;
5403 for (line = view->line; line < view->line + view->lines; line++) {
5404 if (line->type != LINE_DIFF_CHUNK)
5407 tmp = realloc_items(stage_chunk, &alloc,
5408 stage_chunks, sizeof(*tmp));
5410 report("Allocation failure");
5415 stage_chunk[stage_chunks++] = line - view->line;
5419 for (i = 0; i < stage_chunks; i++) {
5420 if (stage_chunk[i] > view->lineno) {
5421 do_scroll_view(view, stage_chunk[i] - view->lineno);
5422 report("Chunk %d of %d", i + 1, stage_chunks);
5427 report("No next chunk found");
5431 stage_request(struct view *view, enum request request, struct line *line)
5434 case REQ_STATUS_UPDATE:
5435 if (!stage_update(view, line))
5439 case REQ_STATUS_REVERT:
5440 if (!stage_revert(view, line))
5444 case REQ_STAGE_NEXT:
5445 if (stage_line_type == LINE_STAT_UNTRACKED) {
5446 report("File is untracked; press %s to add",
5447 get_key(REQ_STATUS_UPDATE));
5450 stage_next(view, line);
5454 if (!stage_status.new.name[0])
5456 if (stage_status.status == 'D') {
5457 report("File has been deleted.");
5461 open_editor(stage_status.status != '?', stage_status.new.name);
5465 /* Reload everything ... */
5468 case REQ_VIEW_BLAME:
5469 if (stage_status.new.name[0]) {
5470 string_copy(opt_file, stage_status.new.name);
5476 return pager_request(view, request, line);
5482 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5483 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD | OPEN_NOMAXIMIZE);
5485 /* Check whether the staged entry still exists, and close the
5486 * stage view if it doesn't. */
5487 if (!status_exists(&stage_status, stage_line_type)) {
5488 status_restore(VIEW(REQ_VIEW_STATUS));
5489 return REQ_VIEW_CLOSE;
5492 if (stage_line_type == LINE_STAT_UNTRACKED) {
5493 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5494 report("Cannot display a directory");
5498 if (!prepare_update_file(view, stage_status.new.name)) {
5499 report("Failed to open file: %s", strerror(errno));
5503 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5508 static struct view_ops stage_ops = {
5525 char id[SIZEOF_REV]; /* SHA1 ID. */
5526 char title[128]; /* First line of the commit message. */
5527 char author[75]; /* Author of the commit. */
5528 struct tm time; /* Date from the author ident. */
5529 struct ref **refs; /* Repository references. */
5530 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5531 size_t graph_size; /* The width of the graph array. */
5532 bool has_parents; /* Rewritten --parents seen. */
5535 /* Size of rev graph with no "padding" columns */
5536 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5539 struct rev_graph *prev, *next, *parents;
5540 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5542 struct commit *commit;
5544 unsigned int boundary:1;
5547 /* Parents of the commit being visualized. */
5548 static struct rev_graph graph_parents[4];
5550 /* The current stack of revisions on the graph. */
5551 static struct rev_graph graph_stacks[4] = {
5552 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5553 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5554 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5555 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5559 graph_parent_is_merge(struct rev_graph *graph)
5561 return graph->parents->size > 1;
5565 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5567 struct commit *commit = graph->commit;
5569 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5570 commit->graph[commit->graph_size++] = symbol;
5574 clear_rev_graph(struct rev_graph *graph)
5576 graph->boundary = 0;
5577 graph->size = graph->pos = 0;
5578 graph->commit = NULL;
5579 memset(graph->parents, 0, sizeof(*graph->parents));
5583 done_rev_graph(struct rev_graph *graph)
5585 if (graph_parent_is_merge(graph) &&
5586 graph->pos < graph->size - 1 &&
5587 graph->next->size == graph->size + graph->parents->size - 1) {
5588 size_t i = graph->pos + graph->parents->size - 1;
5590 graph->commit->graph_size = i * 2;
5591 while (i < graph->next->size - 1) {
5592 append_to_rev_graph(graph, ' ');
5593 append_to_rev_graph(graph, '\\');
5598 clear_rev_graph(graph);
5602 push_rev_graph(struct rev_graph *graph, const char *parent)
5606 /* "Collapse" duplicate parents lines.
5608 * FIXME: This needs to also update update the drawn graph but
5609 * for now it just serves as a method for pruning graph lines. */
5610 for (i = 0; i < graph->size; i++)
5611 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5614 if (graph->size < SIZEOF_REVITEMS) {
5615 string_copy_rev(graph->rev[graph->size++], parent);
5620 get_rev_graph_symbol(struct rev_graph *graph)
5624 if (graph->boundary)
5625 symbol = REVGRAPH_BOUND;
5626 else if (graph->parents->size == 0)
5627 symbol = REVGRAPH_INIT;
5628 else if (graph_parent_is_merge(graph))
5629 symbol = REVGRAPH_MERGE;
5630 else if (graph->pos >= graph->size)
5631 symbol = REVGRAPH_BRANCH;
5633 symbol = REVGRAPH_COMMIT;
5639 draw_rev_graph(struct rev_graph *graph)
5642 chtype separator, line;
5644 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5645 static struct rev_filler fillers[] = {
5651 chtype symbol = get_rev_graph_symbol(graph);
5652 struct rev_filler *filler;
5655 if (opt_line_graphics)
5656 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5658 filler = &fillers[DEFAULT];
5660 for (i = 0; i < graph->pos; i++) {
5661 append_to_rev_graph(graph, filler->line);
5662 if (graph_parent_is_merge(graph->prev) &&
5663 graph->prev->pos == i)
5664 filler = &fillers[RSHARP];
5666 append_to_rev_graph(graph, filler->separator);
5669 /* Place the symbol for this revision. */
5670 append_to_rev_graph(graph, symbol);
5672 if (graph->prev->size > graph->size)
5673 filler = &fillers[RDIAG];
5675 filler = &fillers[DEFAULT];
5679 for (; i < graph->size; i++) {
5680 append_to_rev_graph(graph, filler->separator);
5681 append_to_rev_graph(graph, filler->line);
5682 if (graph_parent_is_merge(graph->prev) &&
5683 i < graph->prev->pos + graph->parents->size)
5684 filler = &fillers[RSHARP];
5685 if (graph->prev->size > graph->size)
5686 filler = &fillers[LDIAG];
5689 if (graph->prev->size > graph->size) {
5690 append_to_rev_graph(graph, filler->separator);
5691 if (filler->line != ' ')
5692 append_to_rev_graph(graph, filler->line);
5696 /* Prepare the next rev graph */
5698 prepare_rev_graph(struct rev_graph *graph)
5702 /* First, traverse all lines of revisions up to the active one. */
5703 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5704 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5707 push_rev_graph(graph->next, graph->rev[graph->pos]);
5710 /* Interleave the new revision parent(s). */
5711 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5712 push_rev_graph(graph->next, graph->parents->rev[i]);
5714 /* Lastly, put any remaining revisions. */
5715 for (i = graph->pos + 1; i < graph->size; i++)
5716 push_rev_graph(graph->next, graph->rev[i]);
5720 update_rev_graph(struct view *view, struct rev_graph *graph)
5722 /* If this is the finalizing update ... */
5724 prepare_rev_graph(graph);
5726 /* Graph visualization needs a one rev look-ahead,
5727 * so the first update doesn't visualize anything. */
5728 if (!graph->prev->commit)
5731 if (view->lines > 2)
5732 view->line[view->lines - 3].dirty = 1;
5733 if (view->lines > 1)
5734 view->line[view->lines - 2].dirty = 1;
5735 draw_rev_graph(graph->prev);
5736 done_rev_graph(graph->prev->prev);
5744 static const char *main_argv[SIZEOF_ARG] = {
5745 "git", "log", "--no-color", "--pretty=raw", "--parents",
5746 "--topo-order", "%(head)", NULL
5750 main_draw(struct view *view, struct line *line, unsigned int lineno)
5752 struct commit *commit = line->data;
5754 if (!*commit->author)
5757 if (opt_date && draw_date(view, &commit->time))
5760 if (opt_author && draw_author(view, commit->author))
5763 if (opt_rev_graph && commit->graph_size &&
5764 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5767 if (opt_show_refs && commit->refs) {
5771 enum line_type type;
5773 if (commit->refs[i]->head)
5774 type = LINE_MAIN_HEAD;
5775 else if (commit->refs[i]->ltag)
5776 type = LINE_MAIN_LOCAL_TAG;
5777 else if (commit->refs[i]->tag)
5778 type = LINE_MAIN_TAG;
5779 else if (commit->refs[i]->tracked)
5780 type = LINE_MAIN_TRACKED;
5781 else if (commit->refs[i]->remote)
5782 type = LINE_MAIN_REMOTE;
5784 type = LINE_MAIN_REF;
5786 if (draw_text(view, type, "[", TRUE) ||
5787 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5788 draw_text(view, type, "]", TRUE))
5791 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5793 } while (commit->refs[i++]->next);
5796 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5800 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5802 main_read(struct view *view, char *line)
5804 static struct rev_graph *graph = graph_stacks;
5805 enum line_type type;
5806 struct commit *commit;
5811 if (!view->lines && !view->parent)
5812 die("No revisions match the given arguments.");
5813 if (view->lines > 0) {
5814 commit = view->line[view->lines - 1].data;
5815 view->line[view->lines - 1].dirty = 1;
5816 if (!*commit->author) {
5819 graph->commit = NULL;
5822 update_rev_graph(view, graph);
5824 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5825 clear_rev_graph(&graph_stacks[i]);
5829 type = get_line_type(line);
5830 if (type == LINE_COMMIT) {
5831 commit = calloc(1, sizeof(struct commit));
5835 line += STRING_SIZE("commit ");
5837 graph->boundary = 1;
5841 string_copy_rev(commit->id, line);
5842 commit->refs = get_refs(commit->id);
5843 graph->commit = commit;
5844 add_line_data(view, commit, LINE_MAIN_COMMIT);
5846 while ((line = strchr(line, ' '))) {
5848 push_rev_graph(graph->parents, line);
5849 commit->has_parents = TRUE;
5856 commit = view->line[view->lines - 1].data;
5860 if (commit->has_parents)
5862 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5866 parse_author_line(line + STRING_SIZE("author "),
5867 commit->author, sizeof(commit->author),
5869 update_rev_graph(view, graph);
5870 graph = graph->next;
5874 /* Fill in the commit title if it has not already been set. */
5875 if (commit->title[0])
5878 /* Require titles to start with a non-space character at the
5879 * offset used by git log. */
5880 if (strncmp(line, " ", 4))
5883 /* Well, if the title starts with a whitespace character,
5884 * try to be forgiving. Otherwise we end up with no title. */
5885 while (isspace(*line))
5889 /* FIXME: More graceful handling of titles; append "..." to
5890 * shortened titles, etc. */
5892 string_expand(commit->title, sizeof(commit->title), line, 1);
5893 view->line[view->lines - 1].dirty = 1;
5900 main_request(struct view *view, enum request request, struct line *line)
5902 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5906 open_view(view, REQ_VIEW_DIFF, flags);
5910 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5920 grep_refs(struct ref **refs, regex_t *regex)
5928 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5930 } while (refs[i++]->next);
5936 main_grep(struct view *view, struct line *line)
5938 struct commit *commit = line->data;
5939 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5940 char buf[DATE_COLS + 1];
5943 for (state = S_TITLE; state < S_END; state++) {
5947 case S_TITLE: text = commit->title; break;
5951 text = commit->author;
5956 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5963 if (grep_refs(commit->refs, view->regex) == TRUE)
5970 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5978 main_select(struct view *view, struct line *line)
5980 struct commit *commit = line->data;
5982 string_copy_rev(view->ref, commit->id);
5983 string_copy_rev(ref_commit, view->ref);
5986 static struct view_ops main_ops = {
5999 * Unicode / UTF-8 handling
6001 * NOTE: Much of the following code for dealing with unicode is derived from
6002 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
6003 * src/intl/charset.c from the utf8 branch commit elinks-0.11.0-g31f2c28.
6006 /* I've (over)annotated a lot of code snippets because I am not entirely
6007 * confident that the approach taken by this small UTF-8 interface is correct.
6011 unicode_width(unsigned long c)
6014 (c <= 0x115f /* Hangul Jamo */
6017 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
6019 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
6020 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
6021 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
6022 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
6023 || (c >= 0xffe0 && c <= 0xffe6)
6024 || (c >= 0x20000 && c <= 0x2fffd)
6025 || (c >= 0x30000 && c <= 0x3fffd)))
6029 return opt_tab_size;
6034 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
6035 * Illegal bytes are set one. */
6036 static const unsigned char utf8_bytes[256] = {
6037 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,
6038 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,
6039 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,
6040 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,
6041 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,
6042 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,
6043 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,
6044 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,
6047 /* Decode UTF-8 multi-byte representation into a unicode character. */
6048 static inline unsigned long
6049 utf8_to_unicode(const char *string, size_t length)
6051 unsigned long unicode;
6055 unicode = string[0];
6058 unicode = (string[0] & 0x1f) << 6;
6059 unicode += (string[1] & 0x3f);
6062 unicode = (string[0] & 0x0f) << 12;
6063 unicode += ((string[1] & 0x3f) << 6);
6064 unicode += (string[2] & 0x3f);
6067 unicode = (string[0] & 0x0f) << 18;
6068 unicode += ((string[1] & 0x3f) << 12);
6069 unicode += ((string[2] & 0x3f) << 6);
6070 unicode += (string[3] & 0x3f);
6073 unicode = (string[0] & 0x0f) << 24;
6074 unicode += ((string[1] & 0x3f) << 18);
6075 unicode += ((string[2] & 0x3f) << 12);
6076 unicode += ((string[3] & 0x3f) << 6);
6077 unicode += (string[4] & 0x3f);
6080 unicode = (string[0] & 0x01) << 30;
6081 unicode += ((string[1] & 0x3f) << 24);
6082 unicode += ((string[2] & 0x3f) << 18);
6083 unicode += ((string[3] & 0x3f) << 12);
6084 unicode += ((string[4] & 0x3f) << 6);
6085 unicode += (string[5] & 0x3f);
6088 die("Invalid unicode length");
6091 /* Invalid characters could return the special 0xfffd value but NUL
6092 * should be just as good. */
6093 return unicode > 0xffff ? 0 : unicode;
6096 /* Calculates how much of string can be shown within the given maximum width
6097 * and sets trimmed parameter to non-zero value if all of string could not be
6098 * shown. If the reserve flag is TRUE, it will reserve at least one
6099 * trailing character, which can be useful when drawing a delimiter.
6101 * Returns the number of bytes to output from string to satisfy max_width. */
6103 utf8_length(const char **start, size_t skip, int *width, size_t max_width, int *trimmed, bool reserve)
6105 const char *string = *start;
6106 const char *end = strchr(string, '\0');
6107 unsigned char last_bytes = 0;
6108 size_t last_ucwidth = 0;
6113 while (string < end) {
6114 int c = *(unsigned char *) string;
6115 unsigned char bytes = utf8_bytes[c];
6117 unsigned long unicode;
6119 if (string + bytes > end)
6122 /* Change representation to figure out whether
6123 * it is a single- or double-width character. */
6125 unicode = utf8_to_unicode(string, bytes);
6126 /* FIXME: Graceful handling of invalid unicode character. */
6130 ucwidth = unicode_width(unicode);
6132 skip -= ucwidth <= skip ? ucwidth : skip;
6136 if (*width > max_width) {
6139 if (reserve && *width == max_width) {
6140 string -= last_bytes;
6141 *width -= last_ucwidth;
6147 last_bytes = ucwidth ? bytes : 0;
6148 last_ucwidth = ucwidth;
6151 return string - *start;
6159 /* Whether or not the curses interface has been initialized. */
6160 static bool cursed = FALSE;
6162 /* Terminal hacks and workarounds. */
6163 static bool use_scroll_redrawwin;
6164 static bool use_scroll_status_wclear;
6166 /* The status window is used for polling keystrokes. */
6167 static WINDOW *status_win;
6169 /* Reading from the prompt? */
6170 static bool input_mode = FALSE;
6172 static bool status_empty = FALSE;
6174 /* Update status and title window. */
6176 report(const char *msg, ...)
6178 struct view *view = display[current_view];
6184 char buf[SIZEOF_STR];
6187 va_start(args, msg);
6188 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6189 buf[sizeof(buf) - 1] = 0;
6190 buf[sizeof(buf) - 2] = '.';
6191 buf[sizeof(buf) - 3] = '.';
6192 buf[sizeof(buf) - 4] = '.';
6198 if (!status_empty || *msg) {
6201 va_start(args, msg);
6203 wmove(status_win, 0, 0);
6204 if (view->has_scrolled && use_scroll_status_wclear)
6207 vwprintw(status_win, msg, args);
6208 status_empty = FALSE;
6210 status_empty = TRUE;
6212 wclrtoeol(status_win);
6213 wnoutrefresh(status_win);
6218 update_view_title(view);
6221 /* Controls when nodelay should be in effect when polling user input. */
6223 set_nonblocking_input(bool loading)
6225 static unsigned int loading_views;
6227 if ((loading == FALSE && loading_views-- == 1) ||
6228 (loading == TRUE && loading_views++ == 0))
6229 nodelay(status_win, loading);
6238 /* Initialize the curses library */
6239 if (isatty(STDIN_FILENO)) {
6240 cursed = !!initscr();
6243 /* Leave stdin and stdout alone when acting as a pager. */
6244 opt_tty = fopen("/dev/tty", "r+");
6246 die("Failed to open /dev/tty");
6247 cursed = !!newterm(NULL, opt_tty, opt_tty);
6251 die("Failed to initialize curses");
6253 nonl(); /* Tell curses not to do NL->CR/NL on output */
6254 cbreak(); /* Take input chars one at a time, no wait for \n */
6255 noecho(); /* Don't echo input */
6256 leaveok(stdscr, FALSE);
6261 getmaxyx(stdscr, y, x);
6262 status_win = newwin(1, 0, y - 1, 0);
6264 die("Failed to create status window");
6266 /* Enable keyboard mapping */
6267 keypad(status_win, TRUE);
6268 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6270 TABSIZE = opt_tab_size;
6271 if (opt_line_graphics) {
6272 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6275 term = getenv("XTERM_VERSION") ? NULL : getenv("COLORTERM");
6276 if (term && !strcmp(term, "gnome-terminal")) {
6277 /* In the gnome-terminal-emulator, the message from
6278 * scrolling up one line when impossible followed by
6279 * scrolling down one line causes corruption of the
6280 * status line. This is fixed by calling wclear. */
6281 use_scroll_status_wclear = TRUE;
6282 use_scroll_redrawwin = FALSE;
6284 } else if (term && !strcmp(term, "xrvt-xpm")) {
6285 /* No problems with full optimizations in xrvt-(unicode)
6287 use_scroll_status_wclear = use_scroll_redrawwin = FALSE;
6290 /* When scrolling in (u)xterm the last line in the
6291 * scrolling direction will update slowly. */
6292 use_scroll_redrawwin = TRUE;
6293 use_scroll_status_wclear = FALSE;
6298 get_input(int prompt_position)
6301 int i, key, cursor_y, cursor_x;
6303 if (prompt_position)
6307 foreach_view (view, i) {
6309 if (view_is_displayed(view) && view->has_scrolled &&
6310 use_scroll_redrawwin)
6311 redrawwin(view->win);
6312 view->has_scrolled = FALSE;
6315 /* Update the cursor position. */
6316 if (prompt_position) {
6317 getbegyx(status_win, cursor_y, cursor_x);
6318 cursor_x = prompt_position;
6320 view = display[current_view];
6321 getbegyx(view->win, cursor_y, cursor_x);
6322 cursor_x = view->width - 1;
6323 cursor_y += view->lineno - view->offset;
6325 setsyx(cursor_y, cursor_x);
6327 /* Refresh, accept single keystroke of input */
6329 key = wgetch(status_win);
6331 /* wgetch() with nodelay() enabled returns ERR when
6332 * there's no input. */
6335 } else if (key == KEY_RESIZE) {
6338 getmaxyx(stdscr, height, width);
6340 wresize(status_win, 1, width);
6341 mvwin(status_win, height - 1, 0);
6342 wnoutrefresh(status_win);
6344 redraw_display(TRUE);
6354 prompt_input(const char *prompt, input_handler handler, void *data)
6356 enum input_status status = INPUT_OK;
6357 static char buf[SIZEOF_STR];
6362 while (status == INPUT_OK || status == INPUT_SKIP) {
6365 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6366 wclrtoeol(status_win);
6368 key = get_input(pos + 1);
6373 status = pos ? INPUT_STOP : INPUT_CANCEL;
6380 status = INPUT_CANCEL;
6384 status = INPUT_CANCEL;
6388 if (pos >= sizeof(buf)) {
6389 report("Input string too long");
6393 status = handler(data, buf, key);
6394 if (status == INPUT_OK)
6395 buf[pos++] = (char) key;
6399 /* Clear the status window */
6400 status_empty = FALSE;
6403 if (status == INPUT_CANCEL)
6411 static enum input_status
6412 prompt_yesno_handler(void *data, char *buf, int c)
6414 if (c == 'y' || c == 'Y')
6416 if (c == 'n' || c == 'N')
6417 return INPUT_CANCEL;
6422 prompt_yesno(const char *prompt)
6424 char prompt2[SIZEOF_STR];
6426 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6429 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6432 static enum input_status
6433 read_prompt_handler(void *data, char *buf, int c)
6435 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6439 read_prompt(const char *prompt)
6441 return prompt_input(prompt, read_prompt_handler, NULL);
6445 * Repository properties
6448 static struct ref *refs = NULL;
6449 static size_t refs_alloc = 0;
6450 static size_t refs_size = 0;
6452 /* Id <-> ref store */
6453 static struct ref ***id_refs = NULL;
6454 static size_t id_refs_alloc = 0;
6455 static size_t id_refs_size = 0;
6458 compare_refs(const void *ref1_, const void *ref2_)
6460 const struct ref *ref1 = *(const struct ref **)ref1_;
6461 const struct ref *ref2 = *(const struct ref **)ref2_;
6463 if (ref1->tag != ref2->tag)
6464 return ref2->tag - ref1->tag;
6465 if (ref1->ltag != ref2->ltag)
6466 return ref2->ltag - ref2->ltag;
6467 if (ref1->head != ref2->head)
6468 return ref2->head - ref1->head;
6469 if (ref1->tracked != ref2->tracked)
6470 return ref2->tracked - ref1->tracked;
6471 if (ref1->remote != ref2->remote)
6472 return ref2->remote - ref1->remote;
6473 return strcmp(ref1->name, ref2->name);
6476 static struct ref **
6477 get_refs(const char *id)
6479 struct ref ***tmp_id_refs;
6480 struct ref **ref_list = NULL;
6481 size_t ref_list_alloc = 0;
6482 size_t ref_list_size = 0;
6485 for (i = 0; i < id_refs_size; i++)
6486 if (!strcmp(id, id_refs[i][0]->id))
6489 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6494 id_refs = tmp_id_refs;
6496 for (i = 0; i < refs_size; i++) {
6499 if (strcmp(id, refs[i].id))
6502 tmp = realloc_items(ref_list, &ref_list_alloc,
6503 ref_list_size + 1, sizeof(*ref_list));
6511 ref_list[ref_list_size] = &refs[i];
6512 /* XXX: The properties of the commit chains ensures that we can
6513 * safely modify the shared ref. The repo references will
6514 * always be similar for the same id. */
6515 ref_list[ref_list_size]->next = 1;
6521 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6522 ref_list[ref_list_size - 1]->next = 0;
6523 id_refs[id_refs_size++] = ref_list;
6530 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6535 bool remote = FALSE;
6536 bool tracked = FALSE;
6537 bool check_replace = FALSE;
6540 if (!prefixcmp(name, "refs/tags/")) {
6541 if (!suffixcmp(name, namelen, "^{}")) {
6544 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6545 check_replace = TRUE;
6551 namelen -= STRING_SIZE("refs/tags/");
6552 name += STRING_SIZE("refs/tags/");
6554 } else if (!prefixcmp(name, "refs/remotes/")) {
6556 namelen -= STRING_SIZE("refs/remotes/");
6557 name += STRING_SIZE("refs/remotes/");
6558 tracked = !strcmp(opt_remote, name);
6560 } else if (!prefixcmp(name, "refs/heads/")) {
6561 namelen -= STRING_SIZE("refs/heads/");
6562 name += STRING_SIZE("refs/heads/");
6563 head = !strncmp(opt_head, name, namelen);
6565 } else if (!strcmp(name, "HEAD")) {
6566 string_ncopy(opt_head_rev, id, idlen);
6570 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6571 /* it's an annotated tag, replace the previous sha1 with the
6572 * resolved commit id; relies on the fact git-ls-remote lists
6573 * the commit id of an annotated tag right before the commit id
6575 refs[refs_size - 1].ltag = ltag;
6576 string_copy_rev(refs[refs_size - 1].id, id);
6580 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6584 ref = &refs[refs_size++];
6585 ref->name = malloc(namelen + 1);
6589 strncpy(ref->name, name, namelen);
6590 ref->name[namelen] = 0;
6594 ref->remote = remote;
6595 ref->tracked = tracked;
6596 string_copy_rev(ref->id, id);
6604 static const char *ls_remote_argv[SIZEOF_ARG] = {
6605 "git", "ls-remote", ".", NULL
6607 static bool init = FALSE;
6610 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6617 while (refs_size > 0)
6618 free(refs[--refs_size].name);
6619 while (id_refs_size > 0)
6620 free(id_refs[--id_refs_size]);
6622 return run_io_load(ls_remote_argv, "\t", read_ref);
6626 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6628 if (!strcmp(name, "i18n.commitencoding"))
6629 string_ncopy(opt_encoding, value, valuelen);
6631 if (!strcmp(name, "core.editor"))
6632 string_ncopy(opt_editor, value, valuelen);
6634 /* branch.<head>.remote */
6636 !strncmp(name, "branch.", 7) &&
6637 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6638 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6639 string_ncopy(opt_remote, value, valuelen);
6641 if (*opt_head && *opt_remote &&
6642 !strncmp(name, "branch.", 7) &&
6643 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6644 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6645 size_t from = strlen(opt_remote);
6647 if (!prefixcmp(value, "refs/heads/")) {
6648 value += STRING_SIZE("refs/heads/");
6649 valuelen -= STRING_SIZE("refs/heads/");
6652 if (!string_format_from(opt_remote, &from, "/%s", value))
6660 load_git_config(void)
6662 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6664 return run_io_load(config_list_argv, "=", read_repo_config_option);
6668 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6670 if (!opt_git_dir[0]) {
6671 string_ncopy(opt_git_dir, name, namelen);
6673 } else if (opt_is_inside_work_tree == -1) {
6674 /* This can be 3 different values depending on the
6675 * version of git being used. If git-rev-parse does not
6676 * understand --is-inside-work-tree it will simply echo
6677 * the option else either "true" or "false" is printed.
6678 * Default to true for the unknown case. */
6679 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6681 } else if (*name == '.') {
6682 string_ncopy(opt_cdup, name, namelen);
6685 string_ncopy(opt_prefix, name, namelen);
6692 load_repo_info(void)
6694 const char *head_argv[] = {
6695 "git", "symbolic-ref", "HEAD", NULL
6697 const char *rev_parse_argv[] = {
6698 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6699 "--show-cdup", "--show-prefix", NULL
6702 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6703 chomp_string(opt_head);
6704 if (!prefixcmp(opt_head, "refs/heads/")) {
6705 char *offset = opt_head + STRING_SIZE("refs/heads/");
6707 memmove(opt_head, offset, strlen(offset) + 1);
6711 return run_io_load(rev_parse_argv, "=", read_repo_info);
6719 static void __NORETURN
6722 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6728 static void __NORETURN
6729 die(const char *err, ...)
6735 va_start(args, err);
6736 fputs("tig: ", stderr);
6737 vfprintf(stderr, err, args);
6738 fputs("\n", stderr);
6745 warn(const char *msg, ...)
6749 va_start(args, msg);
6750 fputs("tig warning: ", stderr);
6751 vfprintf(stderr, msg, args);
6752 fputs("\n", stderr);
6757 parse_options(int argc, const char *argv[])
6759 enum request request = REQ_VIEW_MAIN;
6760 const char *subcommand;
6761 bool seen_dashdash = FALSE;
6762 /* XXX: This is vulnerable to the user overriding options
6763 * required for the main view parser. */
6764 const char *custom_argv[SIZEOF_ARG] = {
6765 "git", "log", "--no-color", "--pretty=raw", "--parents",
6766 "--topo-order", NULL
6770 if (!isatty(STDIN_FILENO)) {
6771 io_open(&VIEW(REQ_VIEW_PAGER)->io, "");
6772 return REQ_VIEW_PAGER;
6778 subcommand = argv[1];
6779 if (!strcmp(subcommand, "status")) {
6781 warn("ignoring arguments after `%s'", subcommand);
6782 return REQ_VIEW_STATUS;
6784 } else if (!strcmp(subcommand, "blame")) {
6785 if (argc <= 2 || argc > 4)
6786 die("invalid number of options to blame\n\n%s", usage);
6790 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
6794 string_ncopy(opt_file, argv[i], strlen(argv[i]));
6795 return REQ_VIEW_BLAME;
6797 } else if (!strcmp(subcommand, "show")) {
6798 request = REQ_VIEW_DIFF;
6805 custom_argv[1] = subcommand;
6809 for (i = 1 + !!subcommand; i < argc; i++) {
6810 const char *opt = argv[i];
6812 if (seen_dashdash || !strcmp(opt, "--")) {
6813 seen_dashdash = TRUE;
6815 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
6816 printf("tig version %s\n", TIG_VERSION);
6819 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
6820 printf("%s\n", usage);
6824 custom_argv[j++] = opt;
6825 if (j >= ARRAY_SIZE(custom_argv))
6826 die("command too long");
6829 if (!prepare_update(VIEW(request), custom_argv, NULL, FORMAT_NONE))
6830 die("Failed to format arguments");
6836 main(int argc, const char *argv[])
6838 enum request request = parse_options(argc, argv);
6842 signal(SIGINT, quit);
6844 if (setlocale(LC_ALL, "")) {
6845 char *codeset = nl_langinfo(CODESET);
6847 string_ncopy(opt_codeset, codeset, strlen(codeset));
6850 if (load_repo_info() == ERR)
6851 die("Failed to load repo info.");
6853 if (load_options() == ERR)
6854 die("Failed to load user config.");
6856 if (load_git_config() == ERR)
6857 die("Failed to load repo config.");
6859 /* Require a git repository unless when running in pager mode. */
6860 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6861 die("Not a git repository");
6863 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6866 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6867 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6868 if (opt_iconv == ICONV_NONE)
6869 die("Failed to initialize character set conversion");
6872 if (load_refs() == ERR)
6873 die("Failed to load refs.");
6875 foreach_view (view, i)
6876 argv_from_env(view->ops->argv, view->cmd_env);
6880 if (request != REQ_NONE)
6881 open_view(NULL, request, OPEN_PREPARED);
6882 request = request == REQ_NONE ? REQ_VIEW_MAIN : REQ_NONE;
6884 while (view_driver(display[current_view], request)) {
6885 int key = get_input(0);
6887 view = display[current_view];
6888 request = get_keybinding(view->keymap, key);
6890 /* Some low-level request handling. This keeps access to
6891 * status_win restricted. */
6895 char *cmd = read_prompt(":");
6898 struct view *next = VIEW(REQ_VIEW_PAGER);
6899 const char *argv[SIZEOF_ARG] = { "git" };
6902 /* When running random commands, initially show the
6903 * command in the title. However, it maybe later be
6904 * overwritten if a commit line is selected. */
6905 string_ncopy(next->ref, cmd, strlen(cmd));
6907 if (!argv_from_string(argv, &argc, cmd)) {
6908 report("Too many arguments");
6909 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6910 report("Failed to format command");
6912 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6920 case REQ_SEARCH_BACK:
6922 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6923 char *search = read_prompt(prompt);
6926 string_ncopy(opt_search, search, strlen(search));
6927 else if (*opt_search)
6928 request = request == REQ_SEARCH ?