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
115 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
117 #define NULL_ID "0000000000000000000000000000000000000000"
119 #define S_ISGITLINK(mode) (((mode) & S_IFMT) == 0160000)
122 #define GIT_CONFIG "config"
125 /* Some ASCII-shorthands fitted into the ncurses namespace. */
127 #define KEY_RETURN '\r'
132 char *name; /* Ref name; tag or head names are shortened. */
133 char id[SIZEOF_REV]; /* Commit SHA1 ID */
134 unsigned int head:1; /* Is it the current HEAD? */
135 unsigned int tag:1; /* Is it a tag? */
136 unsigned int ltag:1; /* If so, is the tag local? */
137 unsigned int remote:1; /* Is it a remote ref? */
138 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
139 unsigned int next:1; /* For ref lists: are there more refs? */
142 static struct ref **get_refs(const char *id);
145 FORMAT_ALL, /* Perform replacement in all arguments. */
146 FORMAT_DASH, /* Perform replacement up until "--". */
147 FORMAT_NONE /* No replacement should be performed. */
150 static bool format_argv(const char *dst[], const char *src[], enum format_flags flags);
159 typedef enum input_status (*input_handler)(void *data, char *buf, int c);
161 static char *prompt_input(const char *prompt, input_handler handler, void *data);
162 static bool prompt_yesno(const char *prompt);
169 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
171 if (srclen > dstlen - 1)
174 strncpy(dst, src, srclen);
178 /* Shorthands for safely copying into a fixed buffer. */
180 #define string_copy(dst, src) \
181 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
183 #define string_ncopy(dst, src, srclen) \
184 string_ncopy_do(dst, sizeof(dst), src, srclen)
186 #define string_copy_rev(dst, src) \
187 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
189 #define string_add(dst, from, src) \
190 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
193 string_expand(char *dst, size_t dstlen, const char *src, int tabsize)
197 for (size = pos = 0; size < dstlen - 1 && src[pos]; pos++) {
198 if (src[pos] == '\t') {
199 size_t expanded = tabsize - (size % tabsize);
201 if (expanded + size >= dstlen - 1)
202 expanded = dstlen - size - 1;
203 memcpy(dst + size, " ", expanded);
206 dst[size++] = src[pos];
214 chomp_string(char *name)
218 while (isspace(*name))
221 namelen = strlen(name) - 1;
222 while (namelen > 0 && isspace(name[namelen]))
229 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
232 size_t pos = bufpos ? *bufpos : 0;
235 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
241 return pos >= bufsize ? FALSE : TRUE;
244 #define string_format(buf, fmt, args...) \
245 string_nformat(buf, sizeof(buf), NULL, fmt, args)
247 #define string_format_from(buf, from, fmt, args...) \
248 string_nformat(buf, sizeof(buf), from, fmt, args)
251 string_enum_compare(const char *str1, const char *str2, int len)
255 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
257 /* Diff-Header == DIFF_HEADER */
258 for (i = 0; i < len; i++) {
259 if (toupper(str1[i]) == toupper(str2[i]))
262 if (string_enum_sep(str1[i]) &&
263 string_enum_sep(str2[i]))
266 return str1[i] - str2[i];
278 #define ENUM_MAP(name, value) { name, STRING_SIZE(name), value }
281 map_enum_do(const struct enum_map *map, size_t map_size, int *value, const char *name)
283 size_t namelen = strlen(name);
286 for (i = 0; i < map_size; i++)
287 if (namelen == map[i].namelen &&
288 !string_enum_compare(name, map[i].name, namelen)) {
289 *value = map[i].value;
296 #define map_enum(attr, map, name) \
297 map_enum_do(map, ARRAY_SIZE(map), attr, name)
299 #define prefixcmp(str1, str2) \
300 strncmp(str1, str2, STRING_SIZE(str2))
303 suffixcmp(const char *str, int slen, const char *suffix)
305 size_t len = slen >= 0 ? slen : strlen(str);
306 size_t suffixlen = strlen(suffix);
308 return suffixlen < len ? strcmp(str + len - suffixlen, suffix) : -1;
313 mkdate(const time_t *time)
315 static char buf[DATE_COLS + 1];
319 return strftime(buf, sizeof(buf), DATE_FORMAT, &tm) ? buf : NULL;
324 argv_from_string(const char *argv[SIZEOF_ARG], int *argc, char *cmd)
328 while (*cmd && *argc < SIZEOF_ARG && (valuelen = strcspn(cmd, " \t"))) {
329 bool advance = cmd[valuelen] != 0;
332 argv[(*argc)++] = chomp_string(cmd);
333 cmd = chomp_string(cmd + valuelen + advance);
336 if (*argc < SIZEOF_ARG)
338 return *argc < SIZEOF_ARG;
342 argv_from_env(const char **argv, const char *name)
344 char *env = argv ? getenv(name) : NULL;
349 if (env && !argv_from_string(argv, &argc, env))
350 die("Too many arguments in the `%s` environment variable", name);
355 * Executing external commands.
359 IO_FD, /* File descriptor based IO. */
360 IO_BG, /* Execute command in the background. */
361 IO_FG, /* Execute command with same std{in,out,err}. */
362 IO_RD, /* Read only fork+exec IO. */
363 IO_WR, /* Write only fork+exec IO. */
364 IO_AP, /* Append fork+exec output to file. */
368 enum io_type type; /* The requested type of pipe. */
369 const char *dir; /* Directory from which to execute. */
370 pid_t pid; /* Pipe for reading or writing. */
371 int pipe; /* Pipe end for reading or writing. */
372 int error; /* Error status. */
373 const char *argv[SIZEOF_ARG]; /* Shell command arguments. */
374 char *buf; /* Read buffer. */
375 size_t bufalloc; /* Allocated buffer size. */
376 size_t bufsize; /* Buffer content size. */
377 char *bufpos; /* Current buffer position. */
378 unsigned int eof:1; /* Has end of file been reached. */
382 reset_io(struct io *io)
386 io->buf = io->bufpos = NULL;
387 io->bufalloc = io->bufsize = 0;
393 init_io(struct io *io, const char *dir, enum io_type type)
401 init_io_rd(struct io *io, const char *argv[], const char *dir,
402 enum format_flags flags)
404 init_io(io, dir, IO_RD);
405 return format_argv(io->argv, argv, flags);
409 io_open(struct io *io, const char *name)
411 init_io(io, NULL, IO_FD);
412 io->pipe = *name ? open(name, O_RDONLY) : STDIN_FILENO;
415 return io->pipe != -1;
419 kill_io(struct io *io)
421 return io->pid == 0 || kill(io->pid, SIGKILL) != -1;
425 done_io(struct io *io)
436 pid_t waiting = waitpid(pid, &status, 0);
441 report("waitpid failed (%s)", strerror(errno));
445 return waiting == pid &&
446 !WIFSIGNALED(status) &&
448 !WEXITSTATUS(status);
455 start_io(struct io *io)
457 int pipefds[2] = { -1, -1 };
459 if (io->type == IO_FD)
462 if ((io->type == IO_RD || io->type == IO_WR) &&
465 else if (io->type == IO_AP)
466 pipefds[1] = io->pipe;
468 if ((io->pid = fork())) {
469 if (pipefds[!(io->type == IO_WR)] != -1)
470 close(pipefds[!(io->type == IO_WR)]);
472 io->pipe = pipefds[!!(io->type == IO_WR)];
477 if (io->type != IO_FG) {
478 int devnull = open("/dev/null", O_RDWR);
479 int readfd = io->type == IO_WR ? pipefds[0] : devnull;
480 int writefd = (io->type == IO_RD || io->type == IO_AP)
481 ? pipefds[1] : devnull;
483 dup2(readfd, STDIN_FILENO);
484 dup2(writefd, STDOUT_FILENO);
485 dup2(devnull, STDERR_FILENO);
488 if (pipefds[0] != -1)
490 if (pipefds[1] != -1)
494 if (io->dir && *io->dir && chdir(io->dir) == -1)
495 die("Failed to change directory: %s", strerror(errno));
497 execvp(io->argv[0], (char *const*) io->argv);
498 die("Failed to execute program: %s", strerror(errno));
501 if (pipefds[!!(io->type == IO_WR)] != -1)
502 close(pipefds[!!(io->type == IO_WR)]);
507 run_io(struct io *io, const char **argv, const char *dir, enum io_type type)
509 init_io(io, dir, type);
510 if (!format_argv(io->argv, argv, FORMAT_NONE))
516 run_io_do(struct io *io)
518 return start_io(io) && done_io(io);
522 run_io_bg(const char **argv)
526 init_io(&io, NULL, IO_BG);
527 if (!format_argv(io.argv, argv, FORMAT_NONE))
529 return run_io_do(&io);
533 run_io_fg(const char **argv, const char *dir)
537 init_io(&io, dir, IO_FG);
538 if (!format_argv(io.argv, argv, FORMAT_NONE))
540 return run_io_do(&io);
544 run_io_append(const char **argv, enum format_flags flags, int fd)
548 init_io(&io, NULL, IO_AP);
550 if (format_argv(io.argv, argv, flags))
551 return run_io_do(&io);
557 run_io_rd(struct io *io, const char **argv, enum format_flags flags)
559 return init_io_rd(io, argv, NULL, flags) && start_io(io);
563 io_eof(struct io *io)
569 io_error(struct io *io)
575 io_strerror(struct io *io)
577 return strerror(io->error);
581 io_can_read(struct io *io)
583 struct timeval tv = { 0, 500 };
587 FD_SET(io->pipe, &fds);
589 return select(io->pipe + 1, &fds, NULL, NULL, &tv) > 0;
593 io_read(struct io *io, void *buf, size_t bufsize)
596 ssize_t readsize = read(io->pipe, buf, bufsize);
598 if (readsize < 0 && (errno == EAGAIN || errno == EINTR))
600 else if (readsize == -1)
602 else if (readsize == 0)
609 io_get(struct io *io, int c, bool can_read)
615 io->buf = io->bufpos = malloc(BUFSIZ);
618 io->bufalloc = BUFSIZ;
623 if (io->bufsize > 0) {
624 eol = memchr(io->bufpos, c, io->bufsize);
626 char *line = io->bufpos;
629 io->bufpos = eol + 1;
630 io->bufsize -= io->bufpos - line;
637 io->bufpos[io->bufsize] = 0;
647 if (io->bufsize > 0 && io->bufpos > io->buf)
648 memmove(io->buf, io->bufpos, io->bufsize);
650 io->bufpos = io->buf;
651 readsize = io_read(io, io->buf + io->bufsize, io->bufalloc - io->bufsize);
654 io->bufsize += readsize;
659 io_write(struct io *io, const void *buf, size_t bufsize)
663 while (!io_error(io) && written < bufsize) {
666 size = write(io->pipe, buf + written, bufsize - written);
667 if (size < 0 && (errno == EAGAIN || errno == EINTR))
675 return written == bufsize;
679 io_read_buf(struct io *io, char buf[], size_t bufsize)
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 run_io_buf(const char **argv, char buf[], size_t bufsize)
696 return run_io_rd(&io, argv, FORMAT_NONE) && io_read_buf(&io, buf, bufsize);
700 io_load(struct io *io, const char *separators,
701 int (*read_property)(char *, size_t, char *, size_t))
709 while (state == OK && (name = io_get(io, '\n', TRUE))) {
714 name = chomp_string(name);
715 namelen = strcspn(name, separators);
719 value = chomp_string(name + namelen + 1);
720 valuelen = strlen(value);
727 state = read_property(name, namelen, value, valuelen);
730 if (state != ERR && io_error(io))
738 run_io_load(const char **argv, const char *separators,
739 int (*read_property)(char *, size_t, char *, size_t))
743 return init_io_rd(&io, argv, NULL, FORMAT_NONE)
744 ? io_load(&io, separators, read_property) : ERR;
753 /* XXX: Keep the view request first and in sync with views[]. */ \
754 REQ_GROUP("View switching") \
755 REQ_(VIEW_MAIN, "Show main view"), \
756 REQ_(VIEW_DIFF, "Show diff view"), \
757 REQ_(VIEW_LOG, "Show log view"), \
758 REQ_(VIEW_TREE, "Show tree view"), \
759 REQ_(VIEW_BLOB, "Show blob view"), \
760 REQ_(VIEW_BLAME, "Show blame view"), \
761 REQ_(VIEW_HELP, "Show help page"), \
762 REQ_(VIEW_PAGER, "Show pager view"), \
763 REQ_(VIEW_STATUS, "Show status view"), \
764 REQ_(VIEW_STAGE, "Show stage view"), \
766 REQ_GROUP("View manipulation") \
767 REQ_(ENTER, "Enter current line and scroll"), \
768 REQ_(NEXT, "Move to next"), \
769 REQ_(PREVIOUS, "Move to previous"), \
770 REQ_(PARENT, "Move to parent"), \
771 REQ_(VIEW_NEXT, "Move focus to next view"), \
772 REQ_(REFRESH, "Reload and refresh"), \
773 REQ_(MAXIMIZE, "Maximize the current view"), \
774 REQ_(VIEW_CLOSE, "Close the current view"), \
775 REQ_(QUIT, "Close all views and quit"), \
777 REQ_GROUP("View specific requests") \
778 REQ_(STATUS_UPDATE, "Update file status"), \
779 REQ_(STATUS_REVERT, "Revert file changes"), \
780 REQ_(STATUS_MERGE, "Merge file using external tool"), \
781 REQ_(STAGE_NEXT, "Find next chunk to stage"), \
783 REQ_GROUP("Cursor navigation") \
784 REQ_(MOVE_UP, "Move cursor one line up"), \
785 REQ_(MOVE_DOWN, "Move cursor one line down"), \
786 REQ_(MOVE_PAGE_DOWN, "Move cursor one page down"), \
787 REQ_(MOVE_PAGE_UP, "Move cursor one page up"), \
788 REQ_(MOVE_FIRST_LINE, "Move cursor to first line"), \
789 REQ_(MOVE_LAST_LINE, "Move cursor to last line"), \
791 REQ_GROUP("Scrolling") \
792 REQ_(SCROLL_LEFT, "Scroll two columns left"), \
793 REQ_(SCROLL_RIGHT, "Scroll two columns right"), \
794 REQ_(SCROLL_LINE_UP, "Scroll one line up"), \
795 REQ_(SCROLL_LINE_DOWN, "Scroll one line down"), \
796 REQ_(SCROLL_PAGE_UP, "Scroll one page up"), \
797 REQ_(SCROLL_PAGE_DOWN, "Scroll one page down"), \
799 REQ_GROUP("Searching") \
800 REQ_(SEARCH, "Search the view"), \
801 REQ_(SEARCH_BACK, "Search backwards in the view"), \
802 REQ_(FIND_NEXT, "Find next search match"), \
803 REQ_(FIND_PREV, "Find previous search match"), \
805 REQ_GROUP("Option manipulation") \
806 REQ_(TOGGLE_LINENO, "Toggle line numbers"), \
807 REQ_(TOGGLE_DATE, "Toggle date display"), \
808 REQ_(TOGGLE_AUTHOR, "Toggle author display"), \
809 REQ_(TOGGLE_REV_GRAPH, "Toggle revision graph visualization"), \
810 REQ_(TOGGLE_REFS, "Toggle reference display (tags/branches)"), \
813 REQ_(PROMPT, "Bring up the prompt"), \
814 REQ_(SCREEN_REDRAW, "Redraw the screen"), \
815 REQ_(SHOW_VERSION, "Show version information"), \
816 REQ_(STOP_LOADING, "Stop all loading views"), \
817 REQ_(EDIT, "Open in editor"), \
818 REQ_(NONE, "Do nothing")
821 /* User action requests. */
823 #define REQ_GROUP(help)
824 #define REQ_(req, help) REQ_##req
826 /* Offset all requests to avoid conflicts with ncurses getch values. */
827 REQ_OFFSET = KEY_MAX + 1,
834 struct request_info {
835 enum request request;
841 static const struct request_info req_info[] = {
842 #define REQ_GROUP(help) { 0, NULL, 0, (help) },
843 #define REQ_(req, help) { REQ_##req, (#req), STRING_SIZE(#req), (help) }
850 get_request(const char *name)
852 int namelen = strlen(name);
855 for (i = 0; i < ARRAY_SIZE(req_info); i++)
856 if (req_info[i].namelen == namelen &&
857 !string_enum_compare(req_info[i].name, name, namelen))
858 return req_info[i].request;
868 /* Option and state variables. */
869 static bool opt_date = TRUE;
870 static bool opt_author = TRUE;
871 static bool opt_line_number = FALSE;
872 static bool opt_line_graphics = TRUE;
873 static bool opt_rev_graph = FALSE;
874 static bool opt_show_refs = TRUE;
875 static int opt_num_interval = NUMBER_INTERVAL;
876 static double opt_hscroll = 0.50;
877 static int opt_tab_size = TAB_SIZE;
878 static int opt_author_cols = AUTHOR_COLS-1;
879 static char opt_path[SIZEOF_STR] = "";
880 static char opt_file[SIZEOF_STR] = "";
881 static char opt_ref[SIZEOF_REF] = "";
882 static char opt_head[SIZEOF_REF] = "";
883 static char opt_head_rev[SIZEOF_REV] = "";
884 static char opt_remote[SIZEOF_REF] = "";
885 static char opt_encoding[20] = "UTF-8";
886 static bool opt_utf8 = TRUE;
887 static char opt_codeset[20] = "UTF-8";
888 static iconv_t opt_iconv = ICONV_NONE;
889 static char opt_search[SIZEOF_STR] = "";
890 static char opt_cdup[SIZEOF_STR] = "";
891 static char opt_prefix[SIZEOF_STR] = "";
892 static char opt_git_dir[SIZEOF_STR] = "";
893 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
894 static char opt_editor[SIZEOF_STR] = "";
895 static FILE *opt_tty = NULL;
897 #define is_initial_commit() (!*opt_head_rev)
898 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || !strcmp(opt_head_rev, (rev)))
902 * Line-oriented content detection.
906 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
907 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
908 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
909 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
910 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
911 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
912 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
913 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
914 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
915 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
916 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
917 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
918 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
919 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
920 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
921 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
922 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
923 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
924 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
925 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
926 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
927 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
928 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
929 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
930 LINE(AUTHOR, "author ", COLOR_GREEN, COLOR_DEFAULT, 0), \
931 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
932 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
933 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
934 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
935 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
936 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
937 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
938 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
939 LINE(MODE, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
940 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
941 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
942 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
943 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
944 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
945 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
946 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
947 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
948 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
949 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
950 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
951 LINE(TREE_HEAD, "", COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD), \
952 LINE(TREE_DIR, "", COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), \
953 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
954 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
955 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
956 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
957 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
958 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
959 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
960 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
963 #define LINE(type, line, fg, bg, attr) \
971 const char *name; /* Option name. */
972 int namelen; /* Size of option name. */
973 const char *line; /* The start of line to match. */
974 int linelen; /* Size of string to match. */
975 int fg, bg, attr; /* Color and text attributes for the lines. */
978 static struct line_info line_info[] = {
979 #define LINE(type, line, fg, bg, attr) \
980 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
985 static enum line_type
986 get_line_type(const char *line)
988 int linelen = strlen(line);
991 for (type = 0; type < ARRAY_SIZE(line_info); type++)
992 /* Case insensitive search matches Signed-off-by lines better. */
993 if (linelen >= line_info[type].linelen &&
994 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
1001 get_line_attr(enum line_type type)
1003 assert(type < ARRAY_SIZE(line_info));
1004 return COLOR_PAIR(type) | line_info[type].attr;
1007 static struct line_info *
1008 get_line_info(const char *name)
1010 size_t namelen = strlen(name);
1011 enum line_type type;
1013 for (type = 0; type < ARRAY_SIZE(line_info); type++)
1014 if (namelen == line_info[type].namelen &&
1015 !string_enum_compare(line_info[type].name, name, namelen))
1016 return &line_info[type];
1024 int default_bg = line_info[LINE_DEFAULT].bg;
1025 int default_fg = line_info[LINE_DEFAULT].fg;
1026 enum line_type type;
1030 if (assume_default_colors(default_fg, default_bg) == ERR) {
1031 default_bg = COLOR_BLACK;
1032 default_fg = COLOR_WHITE;
1035 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
1036 struct line_info *info = &line_info[type];
1037 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
1038 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
1040 init_pair(type, fg, bg);
1045 enum line_type type;
1048 unsigned int selected:1;
1049 unsigned int dirty:1;
1050 unsigned int cleareol:1;
1052 void *data; /* User data */
1062 enum request request;
1065 static const struct keybinding default_keybindings[] = {
1066 /* View switching */
1067 { 'm', REQ_VIEW_MAIN },
1068 { 'd', REQ_VIEW_DIFF },
1069 { 'l', REQ_VIEW_LOG },
1070 { 't', REQ_VIEW_TREE },
1071 { 'f', REQ_VIEW_BLOB },
1072 { 'B', REQ_VIEW_BLAME },
1073 { 'p', REQ_VIEW_PAGER },
1074 { 'h', REQ_VIEW_HELP },
1075 { 'S', REQ_VIEW_STATUS },
1076 { 'c', REQ_VIEW_STAGE },
1078 /* View manipulation */
1079 { 'q', REQ_VIEW_CLOSE },
1080 { KEY_TAB, REQ_VIEW_NEXT },
1081 { KEY_RETURN, REQ_ENTER },
1082 { KEY_UP, REQ_PREVIOUS },
1083 { KEY_DOWN, REQ_NEXT },
1084 { 'R', REQ_REFRESH },
1085 { KEY_F(5), REQ_REFRESH },
1086 { 'O', REQ_MAXIMIZE },
1088 /* Cursor navigation */
1089 { 'k', REQ_MOVE_UP },
1090 { 'j', REQ_MOVE_DOWN },
1091 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1092 { KEY_END, REQ_MOVE_LAST_LINE },
1093 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1094 { ' ', REQ_MOVE_PAGE_DOWN },
1095 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1096 { 'b', REQ_MOVE_PAGE_UP },
1097 { '-', REQ_MOVE_PAGE_UP },
1100 { KEY_LEFT, REQ_SCROLL_LEFT },
1101 { KEY_RIGHT, REQ_SCROLL_RIGHT },
1102 { KEY_IC, REQ_SCROLL_LINE_UP },
1103 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1104 { 'w', REQ_SCROLL_PAGE_UP },
1105 { 's', REQ_SCROLL_PAGE_DOWN },
1108 { '/', REQ_SEARCH },
1109 { '?', REQ_SEARCH_BACK },
1110 { 'n', REQ_FIND_NEXT },
1111 { 'N', REQ_FIND_PREV },
1115 { 'z', REQ_STOP_LOADING },
1116 { 'v', REQ_SHOW_VERSION },
1117 { 'r', REQ_SCREEN_REDRAW },
1118 { '.', REQ_TOGGLE_LINENO },
1119 { 'D', REQ_TOGGLE_DATE },
1120 { 'A', REQ_TOGGLE_AUTHOR },
1121 { 'g', REQ_TOGGLE_REV_GRAPH },
1122 { 'F', REQ_TOGGLE_REFS },
1123 { ':', REQ_PROMPT },
1124 { 'u', REQ_STATUS_UPDATE },
1125 { '!', REQ_STATUS_REVERT },
1126 { 'M', REQ_STATUS_MERGE },
1127 { '@', REQ_STAGE_NEXT },
1128 { ',', REQ_PARENT },
1132 #define KEYMAP_INFO \
1146 #define KEYMAP_(name) KEYMAP_##name
1151 static const struct enum_map keymap_table[] = {
1152 #define KEYMAP_(name) ENUM_MAP(#name, KEYMAP_##name)
1157 #define set_keymap(map, name) map_enum(map, keymap_table, name)
1159 struct keybinding_table {
1160 struct keybinding *data;
1164 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1167 add_keybinding(enum keymap keymap, enum request request, int key)
1169 struct keybinding_table *table = &keybindings[keymap];
1171 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1173 die("Failed to allocate keybinding");
1174 table->data[table->size].alias = key;
1175 table->data[table->size++].request = request;
1178 /* Looks for a key binding first in the given map, then in the generic map, and
1179 * lastly in the default keybindings. */
1181 get_keybinding(enum keymap keymap, int key)
1185 for (i = 0; i < keybindings[keymap].size; i++)
1186 if (keybindings[keymap].data[i].alias == key)
1187 return keybindings[keymap].data[i].request;
1189 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1190 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1191 return keybindings[KEYMAP_GENERIC].data[i].request;
1193 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1194 if (default_keybindings[i].alias == key)
1195 return default_keybindings[i].request;
1197 return (enum request) key;
1206 static const struct key key_table[] = {
1207 { "Enter", KEY_RETURN },
1209 { "Backspace", KEY_BACKSPACE },
1211 { "Escape", KEY_ESC },
1212 { "Left", KEY_LEFT },
1213 { "Right", KEY_RIGHT },
1215 { "Down", KEY_DOWN },
1216 { "Insert", KEY_IC },
1217 { "Delete", KEY_DC },
1219 { "Home", KEY_HOME },
1221 { "PageUp", KEY_PPAGE },
1222 { "PageDown", KEY_NPAGE },
1232 { "F10", KEY_F(10) },
1233 { "F11", KEY_F(11) },
1234 { "F12", KEY_F(12) },
1238 get_key_value(const char *name)
1242 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1243 if (!strcasecmp(key_table[i].name, name))
1244 return key_table[i].value;
1246 if (strlen(name) == 1 && isprint(*name))
1253 get_key_name(int key_value)
1255 static char key_char[] = "'X'";
1256 const char *seq = NULL;
1259 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1260 if (key_table[key].value == key_value)
1261 seq = key_table[key].name;
1265 isprint(key_value)) {
1266 key_char[1] = (char) key_value;
1270 return seq ? seq : "(no key)";
1274 get_key(enum request request)
1276 static char buf[BUFSIZ];
1283 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1284 const struct keybinding *keybinding = &default_keybindings[i];
1286 if (keybinding->request != request)
1289 if (!string_format_from(buf, &pos, "%s%s", sep,
1290 get_key_name(keybinding->alias)))
1291 return "Too many keybindings!";
1298 struct run_request {
1301 const char *argv[SIZEOF_ARG];
1304 static struct run_request *run_request;
1305 static size_t run_requests;
1308 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1310 struct run_request *req;
1312 if (argc >= ARRAY_SIZE(req->argv) - 1)
1315 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1320 req = &run_request[run_requests];
1321 req->keymap = keymap;
1323 req->argv[0] = NULL;
1325 if (!format_argv(req->argv, argv, FORMAT_NONE))
1328 return REQ_NONE + ++run_requests;
1331 static struct run_request *
1332 get_run_request(enum request request)
1334 if (request <= REQ_NONE)
1336 return &run_request[request - REQ_NONE - 1];
1340 add_builtin_run_requests(void)
1342 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1343 const char *gc[] = { "git", "gc", NULL };
1350 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1351 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1355 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1358 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1359 if (req != REQ_NONE)
1360 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1365 * User config file handling.
1368 static int config_lineno;
1369 static bool config_errors;
1370 static const char *config_msg;
1372 static const struct enum_map color_map[] = {
1373 #define COLOR_MAP(name) ENUM_MAP(#name, COLOR_##name)
1385 static const struct enum_map attr_map[] = {
1386 #define ATTR_MAP(name) ENUM_MAP(#name, A_##name)
1393 ATTR_MAP(UNDERLINE),
1396 #define set_attribute(attr, name) map_enum(attr, attr_map, name)
1398 static int parse_step(double *opt, const char *arg)
1401 if (!strchr(arg, '%'))
1404 /* "Shift down" so 100% and 1 does not conflict. */
1405 *opt = (*opt - 1) / 100;
1408 config_msg = "Step value larger than 100%";
1413 config_msg = "Invalid step value";
1420 parse_int(int *opt, const char *arg, int min, int max)
1422 int value = atoi(arg);
1424 if (min <= value && value <= max) {
1429 config_msg = "Integer value out of bound";
1434 set_color(int *color, const char *name)
1436 if (map_enum(color, color_map, name))
1438 if (!prefixcmp(name, "color"))
1439 return parse_int(color, name + 5, 0, 255) == OK;
1443 /* Wants: object fgcolor bgcolor [attribute] */
1445 option_color_command(int argc, const char *argv[])
1447 struct line_info *info;
1449 if (argc != 3 && argc != 4) {
1450 config_msg = "Wrong number of arguments given to color command";
1454 info = get_line_info(argv[0]);
1456 static const struct enum_map obsolete[] = {
1457 ENUM_MAP("main-delim", LINE_DELIMITER),
1458 ENUM_MAP("main-date", LINE_DATE),
1459 ENUM_MAP("main-author", LINE_AUTHOR),
1463 if (!map_enum(&index, obsolete, argv[0])) {
1464 config_msg = "Unknown color name";
1467 info = &line_info[index];
1470 if (!set_color(&info->fg, argv[1]) ||
1471 !set_color(&info->bg, argv[2])) {
1472 config_msg = "Unknown color";
1476 if (argc == 4 && !set_attribute(&info->attr, argv[3])) {
1477 config_msg = "Unknown attribute";
1484 static int parse_bool(bool *opt, const char *arg)
1486 *opt = (!strcmp(arg, "1") || !strcmp(arg, "true") || !strcmp(arg, "yes"))
1492 parse_string(char *opt, const char *arg, size_t optsize)
1494 int arglen = strlen(arg);
1499 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1500 config_msg = "Unmatched quotation";
1503 arg += 1; arglen -= 2;
1505 string_ncopy_do(opt, optsize, arg, arglen);
1510 /* Wants: name = value */
1512 option_set_command(int argc, const char *argv[])
1515 config_msg = "Wrong number of arguments given to set command";
1519 if (strcmp(argv[1], "=")) {
1520 config_msg = "No value assigned";
1524 if (!strcmp(argv[0], "show-author"))
1525 return parse_bool(&opt_author, argv[2]);
1527 if (!strcmp(argv[0], "show-date"))
1528 return parse_bool(&opt_date, argv[2]);
1530 if (!strcmp(argv[0], "show-rev-graph"))
1531 return parse_bool(&opt_rev_graph, argv[2]);
1533 if (!strcmp(argv[0], "show-refs"))
1534 return parse_bool(&opt_show_refs, argv[2]);
1536 if (!strcmp(argv[0], "show-line-numbers"))
1537 return parse_bool(&opt_line_number, argv[2]);
1539 if (!strcmp(argv[0], "line-graphics"))
1540 return parse_bool(&opt_line_graphics, argv[2]);
1542 if (!strcmp(argv[0], "line-number-interval"))
1543 return parse_int(&opt_num_interval, argv[2], 1, 1024);
1545 if (!strcmp(argv[0], "author-width"))
1546 return parse_int(&opt_author_cols, argv[2], 0, 1024);
1548 if (!strcmp(argv[0], "horizontal-scroll"))
1549 return parse_step(&opt_hscroll, argv[2]);
1551 if (!strcmp(argv[0], "tab-size"))
1552 return parse_int(&opt_tab_size, argv[2], 1, 1024);
1554 if (!strcmp(argv[0], "commit-encoding"))
1555 return parse_string(opt_encoding, argv[2], sizeof(opt_encoding));
1557 config_msg = "Unknown variable name";
1561 /* Wants: mode request key */
1563 option_bind_command(int argc, const char *argv[])
1565 enum request request;
1570 config_msg = "Wrong number of arguments given to bind command";
1574 if (set_keymap(&keymap, argv[0]) == ERR) {
1575 config_msg = "Unknown key map";
1579 key = get_key_value(argv[1]);
1581 config_msg = "Unknown key";
1585 request = get_request(argv[2]);
1586 if (request == REQ_NONE) {
1587 static const struct enum_map obsolete[] = {
1588 ENUM_MAP("cherry-pick", REQ_NONE),
1589 ENUM_MAP("screen-resize", REQ_NONE),
1590 ENUM_MAP("tree-parent", REQ_PARENT),
1594 if (map_enum(&alias, obsolete, argv[2])) {
1595 if (alias != REQ_NONE)
1596 add_keybinding(keymap, alias, key);
1597 config_msg = "Obsolete request name";
1601 if (request == REQ_NONE && *argv[2]++ == '!')
1602 request = add_run_request(keymap, key, argc - 2, argv + 2);
1603 if (request == REQ_NONE) {
1604 config_msg = "Unknown request name";
1608 add_keybinding(keymap, request, key);
1614 set_option(const char *opt, char *value)
1616 const char *argv[SIZEOF_ARG];
1619 if (!argv_from_string(argv, &argc, value)) {
1620 config_msg = "Too many option arguments";
1624 if (!strcmp(opt, "color"))
1625 return option_color_command(argc, argv);
1627 if (!strcmp(opt, "set"))
1628 return option_set_command(argc, argv);
1630 if (!strcmp(opt, "bind"))
1631 return option_bind_command(argc, argv);
1633 config_msg = "Unknown option command";
1638 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1643 config_msg = "Internal error";
1645 /* Check for comment markers, since read_properties() will
1646 * only ensure opt and value are split at first " \t". */
1647 optlen = strcspn(opt, "#");
1651 if (opt[optlen] != 0) {
1652 config_msg = "No option value";
1656 /* Look for comment endings in the value. */
1657 size_t len = strcspn(value, "#");
1659 if (len < valuelen) {
1661 value[valuelen] = 0;
1664 status = set_option(opt, value);
1667 if (status == ERR) {
1668 warn("Error on line %d, near '%.*s': %s",
1669 config_lineno, (int) optlen, opt, config_msg);
1670 config_errors = TRUE;
1673 /* Always keep going if errors are encountered. */
1678 load_option_file(const char *path)
1682 /* It's OK that the file doesn't exist. */
1683 if (!io_open(&io, path))
1687 config_errors = FALSE;
1689 if (io_load(&io, " \t", read_option) == ERR ||
1690 config_errors == TRUE)
1691 warn("Errors while loading %s.", path);
1697 const char *home = getenv("HOME");
1698 const char *tigrc_user = getenv("TIGRC_USER");
1699 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1700 char buf[SIZEOF_STR];
1702 add_builtin_run_requests();
1705 tigrc_system = SYSCONFDIR "/tigrc";
1706 load_option_file(tigrc_system);
1709 if (!home || !string_format(buf, "%s/.tigrc", home))
1713 load_option_file(tigrc_user);
1726 /* The display array of active views and the index of the current view. */
1727 static struct view *display[2];
1728 static unsigned int current_view;
1730 #define foreach_displayed_view(view, i) \
1731 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1733 #define displayed_views() (display[1] != NULL ? 2 : 1)
1735 /* Current head and commit ID */
1736 static char ref_blob[SIZEOF_REF] = "";
1737 static char ref_commit[SIZEOF_REF] = "HEAD";
1738 static char ref_head[SIZEOF_REF] = "HEAD";
1741 const char *name; /* View name */
1742 const char *cmd_env; /* Command line set via environment */
1743 const char *id; /* Points to either of ref_{head,commit,blob} */
1745 struct view_ops *ops; /* View operations */
1747 enum keymap keymap; /* What keymap does this view have */
1748 bool git_dir; /* Whether the view requires a git directory. */
1750 char ref[SIZEOF_REF]; /* Hovered commit reference */
1751 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1753 int height, width; /* The width and height of the main window */
1754 WINDOW *win; /* The main window */
1755 WINDOW *title; /* The title window living below the main window */
1758 unsigned long offset; /* Offset of the window top */
1759 unsigned long yoffset; /* Offset from the window side. */
1760 unsigned long lineno; /* Current line number */
1761 unsigned long p_offset; /* Previous offset of the window top */
1762 unsigned long p_yoffset;/* Previous offset from the window side */
1763 unsigned long p_lineno; /* Previous current line number */
1764 bool p_restore; /* Should the previous position be restored. */
1767 char grep[SIZEOF_STR]; /* Search string */
1768 regex_t *regex; /* Pre-compiled regexp */
1770 /* If non-NULL, points to the view that opened this view. If this view
1771 * is closed tig will switch back to the parent view. */
1772 struct view *parent;
1775 size_t lines; /* Total number of lines */
1776 struct line *line; /* Line index */
1777 size_t line_alloc; /* Total number of allocated lines */
1778 unsigned int digits; /* Number of digits in the lines member. */
1781 struct line *curline; /* Line currently being drawn. */
1782 enum line_type curtype; /* Attribute currently used for drawing. */
1783 unsigned long col; /* Column when drawing. */
1784 bool has_scrolled; /* View was scrolled. */
1794 /* What type of content being displayed. Used in the title bar. */
1796 /* Default command arguments. */
1798 /* Open and reads in all view content. */
1799 bool (*open)(struct view *view);
1800 /* Read one line; updates view->line. */
1801 bool (*read)(struct view *view, char *data);
1802 /* Draw one line; @lineno must be < view->height. */
1803 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1804 /* Depending on view handle a special requests. */
1805 enum request (*request)(struct view *view, enum request request, struct line *line);
1806 /* Search for regexp in a line. */
1807 bool (*grep)(struct view *view, struct line *line);
1809 void (*select)(struct view *view, struct line *line);
1812 static struct view_ops blame_ops;
1813 static struct view_ops blob_ops;
1814 static struct view_ops diff_ops;
1815 static struct view_ops help_ops;
1816 static struct view_ops log_ops;
1817 static struct view_ops main_ops;
1818 static struct view_ops pager_ops;
1819 static struct view_ops stage_ops;
1820 static struct view_ops status_ops;
1821 static struct view_ops tree_ops;
1823 #define VIEW_STR(name, env, ref, ops, map, git) \
1824 { name, #env, ref, ops, map, git }
1826 #define VIEW_(id, name, ops, git, ref) \
1827 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1830 static struct view views[] = {
1831 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1832 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1833 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1834 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1835 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1836 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1837 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1838 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1839 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1840 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1843 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1844 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1846 #define foreach_view(view, i) \
1847 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1849 #define view_is_displayed(view) \
1850 (view == display[0] || view == display[1])
1857 static chtype line_graphics[] = {
1858 /* LINE_GRAPHIC_VLINE: */ '|'
1862 set_view_attr(struct view *view, enum line_type type)
1864 if (!view->curline->selected && view->curtype != type) {
1865 wattrset(view->win, get_line_attr(type));
1866 wchgat(view->win, -1, 0, type, NULL);
1867 view->curtype = type;
1872 draw_chars(struct view *view, enum line_type type, const char *string,
1873 int max_len, bool use_tilde)
1877 int trimmed = FALSE;
1878 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1884 len = utf8_length(&string, skip, &col, max_len, &trimmed, use_tilde);
1886 col = len = strlen(string);
1887 if (len > max_len) {
1891 col = len = max_len;
1896 set_view_attr(view, type);
1898 waddnstr(view->win, string, len);
1899 if (trimmed && use_tilde) {
1900 set_view_attr(view, LINE_DELIMITER);
1901 waddch(view->win, '~');
1909 draw_space(struct view *view, enum line_type type, int max, int spaces)
1911 static char space[] = " ";
1914 spaces = MIN(max, spaces);
1916 while (spaces > 0) {
1917 int len = MIN(spaces, sizeof(space) - 1);
1919 col += draw_chars(view, type, space, len, FALSE);
1927 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1929 view->col += draw_chars(view, type, string, view->width + view->yoffset - view->col, trim);
1930 return view->width + view->yoffset <= view->col;
1934 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1936 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1937 int max = view->width + view->yoffset - view->col;
1943 set_view_attr(view, type);
1944 /* Using waddch() instead of waddnstr() ensures that
1945 * they'll be rendered correctly for the cursor line. */
1946 for (i = skip; i < size; i++)
1947 waddch(view->win, graphic[i]);
1950 if (size < max && skip <= size)
1951 waddch(view->win, ' ');
1954 return view->width + view->yoffset <= view->col;
1958 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1960 int max = MIN(view->width + view->yoffset - view->col, len);
1964 col = draw_chars(view, type, text, max - 1, trim);
1966 col = draw_space(view, type, max - 1, max - 1);
1969 view->col += draw_space(view, LINE_DEFAULT, max - col, max - col);
1970 return view->width + view->yoffset <= view->col;
1974 draw_date(struct view *view, time_t *time)
1976 const char *date = mkdate(time);
1978 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
1982 draw_author(struct view *view, const char *author)
1984 bool trim = opt_author_cols == 0 || opt_author_cols > 5 || !author;
1987 static char initials[10];
1990 #define is_initial_sep(c) (isspace(c) || ispunct(c) || (c) == '@')
1992 memset(initials, 0, sizeof(initials));
1993 for (pos = 0; *author && pos < opt_author_cols - 1; author++, pos++) {
1994 while (is_initial_sep(*author))
1996 strncpy(&initials[pos], author, sizeof(initials) - 1 - pos);
1997 while (*author && !is_initial_sep(author[1]))
2004 return draw_field(view, LINE_AUTHOR, author, opt_author_cols, trim);
2008 draw_mode(struct view *view, mode_t mode)
2014 else if (S_ISLNK(mode))
2016 else if (S_ISGITLINK(mode))
2018 else if (S_ISREG(mode) && mode & S_IXUSR)
2020 else if (S_ISREG(mode))
2025 return draw_field(view, LINE_MODE, str, STRING_SIZE("-rw-r--r-- "), FALSE);
2029 draw_lineno(struct view *view, unsigned int lineno)
2032 int digits3 = view->digits < 3 ? 3 : view->digits;
2033 int max = MIN(view->width + view->yoffset - view->col, digits3);
2036 lineno += view->offset + 1;
2037 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
2038 static char fmt[] = "%1ld";
2040 fmt[1] = '0' + (view->digits <= 9 ? digits3 : 1);
2041 if (string_format(number, fmt, lineno))
2045 view->col += draw_chars(view, LINE_LINE_NUMBER, text, max, TRUE);
2047 view->col += draw_space(view, LINE_LINE_NUMBER, max, digits3);
2048 return draw_graphic(view, LINE_DEFAULT, &line_graphics[LINE_GRAPHIC_VLINE], 1);
2052 draw_view_line(struct view *view, unsigned int lineno)
2055 bool selected = (view->offset + lineno == view->lineno);
2057 assert(view_is_displayed(view));
2059 if (view->offset + lineno >= view->lines)
2062 line = &view->line[view->offset + lineno];
2064 wmove(view->win, lineno, 0);
2066 wclrtoeol(view->win);
2068 view->curline = line;
2069 view->curtype = LINE_NONE;
2070 line->selected = FALSE;
2071 line->dirty = line->cleareol = 0;
2074 set_view_attr(view, LINE_CURSOR);
2075 line->selected = TRUE;
2076 view->ops->select(view, line);
2079 return view->ops->draw(view, line, lineno);
2083 redraw_view_dirty(struct view *view)
2088 for (lineno = 0; lineno < view->height; lineno++) {
2089 if (view->offset + lineno >= view->lines)
2091 if (!view->line[view->offset + lineno].dirty)
2094 if (!draw_view_line(view, lineno))
2100 wnoutrefresh(view->win);
2104 redraw_view_from(struct view *view, int lineno)
2106 assert(0 <= lineno && lineno < view->height);
2108 for (; lineno < view->height; lineno++) {
2109 if (!draw_view_line(view, lineno))
2113 wnoutrefresh(view->win);
2117 redraw_view(struct view *view)
2120 redraw_view_from(view, 0);
2125 update_view_title(struct view *view)
2127 char buf[SIZEOF_STR];
2128 char state[SIZEOF_STR];
2129 size_t bufpos = 0, statelen = 0;
2131 assert(view_is_displayed(view));
2133 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2134 unsigned int view_lines = view->offset + view->height;
2135 unsigned int lines = view->lines
2136 ? MIN(view_lines, view->lines) * 100 / view->lines
2139 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2148 time_t secs = time(NULL) - view->start_time;
2150 /* Three git seconds are a long time ... */
2152 string_format_from(state, &statelen, " loading %lds", secs);
2155 string_format_from(buf, &bufpos, "[%s]", view->name);
2156 if (*view->ref && bufpos < view->width) {
2157 size_t refsize = strlen(view->ref);
2158 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2160 if (minsize < view->width)
2161 refsize = view->width - minsize + 7;
2162 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2165 if (statelen && bufpos < view->width) {
2166 string_format_from(buf, &bufpos, "%s", state);
2169 if (view == display[current_view])
2170 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2172 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2174 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2175 wclrtoeol(view->title);
2176 wnoutrefresh(view->title);
2180 resize_display(void)
2183 struct view *base = display[0];
2184 struct view *view = display[1] ? display[1] : display[0];
2186 /* Setup window dimensions */
2188 getmaxyx(stdscr, base->height, base->width);
2190 /* Make room for the status window. */
2194 /* Horizontal split. */
2195 view->width = base->width;
2196 view->height = SCALE_SPLIT_VIEW(base->height);
2197 base->height -= view->height;
2199 /* Make room for the title bar. */
2203 /* Make room for the title bar. */
2208 foreach_displayed_view (view, i) {
2210 view->win = newwin(view->height, 0, offset, 0);
2212 die("Failed to create %s view", view->name);
2214 scrollok(view->win, FALSE);
2216 view->title = newwin(1, 0, offset + view->height, 0);
2218 die("Failed to create title window");
2221 wresize(view->win, view->height, view->width);
2222 mvwin(view->win, offset, 0);
2223 mvwin(view->title, offset + view->height, 0);
2226 offset += view->height + 1;
2231 redraw_display(bool clear)
2236 foreach_displayed_view (view, i) {
2240 update_view_title(view);
2245 toggle_view_option(bool *option, const char *help)
2248 redraw_display(FALSE);
2249 report("%sabling %s", *option ? "En" : "Dis", help);
2253 maximize_view(struct view *view)
2255 memset(display, 0, sizeof(display));
2257 display[current_view] = view;
2259 redraw_display(FALSE);
2269 goto_view_line(struct view *view, unsigned long offset, unsigned long lineno)
2271 if (lineno >= view->lines)
2272 lineno = view->lines > 0 ? view->lines - 1 : 0;
2274 if (offset > lineno || offset + view->height <= lineno) {
2275 unsigned long half = view->height / 2;
2278 offset = lineno - half;
2283 if (offset != view->offset || lineno != view->lineno) {
2284 view->offset = offset;
2285 view->lineno = lineno;
2293 apply_step(double step, int value)
2297 value *= step + 0.01;
2298 return value ? value : 1;
2301 /* Scrolling backend */
2303 do_scroll_view(struct view *view, int lines)
2305 bool redraw_current_line = FALSE;
2307 /* The rendering expects the new offset. */
2308 view->offset += lines;
2310 assert(0 <= view->offset && view->offset < view->lines);
2313 /* Move current line into the view. */
2314 if (view->lineno < view->offset) {
2315 view->lineno = view->offset;
2316 redraw_current_line = TRUE;
2317 } else if (view->lineno >= view->offset + view->height) {
2318 view->lineno = view->offset + view->height - 1;
2319 redraw_current_line = TRUE;
2322 assert(view->offset <= view->lineno && view->lineno < view->lines);
2324 /* Redraw the whole screen if scrolling is pointless. */
2325 if (view->height < ABS(lines)) {
2329 int line = lines > 0 ? view->height - lines : 0;
2330 int end = line + ABS(lines);
2332 scrollok(view->win, TRUE);
2333 wscrl(view->win, lines);
2334 scrollok(view->win, FALSE);
2336 while (line < end && draw_view_line(view, line))
2339 if (redraw_current_line)
2340 draw_view_line(view, view->lineno - view->offset);
2341 wnoutrefresh(view->win);
2344 view->has_scrolled = TRUE;
2348 /* Scroll frontend */
2350 scroll_view(struct view *view, enum request request)
2354 assert(view_is_displayed(view));
2357 case REQ_SCROLL_LEFT:
2358 if (view->yoffset == 0) {
2359 report("Cannot scroll beyond the first column");
2362 if (view->yoffset <= apply_step(opt_hscroll, view->width))
2365 view->yoffset -= apply_step(opt_hscroll, view->width);
2366 redraw_view_from(view, 0);
2369 case REQ_SCROLL_RIGHT:
2370 view->yoffset += apply_step(opt_hscroll, view->width);
2374 case REQ_SCROLL_PAGE_DOWN:
2375 lines = view->height;
2376 case REQ_SCROLL_LINE_DOWN:
2377 if (view->offset + lines > view->lines)
2378 lines = view->lines - view->offset;
2380 if (lines == 0 || view->offset + view->height >= view->lines) {
2381 report("Cannot scroll beyond the last line");
2386 case REQ_SCROLL_PAGE_UP:
2387 lines = view->height;
2388 case REQ_SCROLL_LINE_UP:
2389 if (lines > view->offset)
2390 lines = view->offset;
2393 report("Cannot scroll beyond the first line");
2401 die("request %d not handled in switch", request);
2404 do_scroll_view(view, lines);
2409 move_view(struct view *view, enum request request)
2411 int scroll_steps = 0;
2415 case REQ_MOVE_FIRST_LINE:
2416 steps = -view->lineno;
2419 case REQ_MOVE_LAST_LINE:
2420 steps = view->lines - view->lineno - 1;
2423 case REQ_MOVE_PAGE_UP:
2424 steps = view->height > view->lineno
2425 ? -view->lineno : -view->height;
2428 case REQ_MOVE_PAGE_DOWN:
2429 steps = view->lineno + view->height >= view->lines
2430 ? view->lines - view->lineno - 1 : view->height;
2442 die("request %d not handled in switch", request);
2445 if (steps <= 0 && view->lineno == 0) {
2446 report("Cannot move beyond the first line");
2449 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2450 report("Cannot move beyond the last line");
2454 /* Move the current line */
2455 view->lineno += steps;
2456 assert(0 <= view->lineno && view->lineno < view->lines);
2458 /* Check whether the view needs to be scrolled */
2459 if (view->lineno < view->offset ||
2460 view->lineno >= view->offset + view->height) {
2461 scroll_steps = steps;
2462 if (steps < 0 && -steps > view->offset) {
2463 scroll_steps = -view->offset;
2465 } else if (steps > 0) {
2466 if (view->lineno == view->lines - 1 &&
2467 view->lines > view->height) {
2468 scroll_steps = view->lines - view->offset - 1;
2469 if (scroll_steps >= view->height)
2470 scroll_steps -= view->height - 1;
2475 if (!view_is_displayed(view)) {
2476 view->offset += scroll_steps;
2477 assert(0 <= view->offset && view->offset < view->lines);
2478 view->ops->select(view, &view->line[view->lineno]);
2482 /* Repaint the old "current" line if we be scrolling */
2483 if (ABS(steps) < view->height)
2484 draw_view_line(view, view->lineno - steps - view->offset);
2487 do_scroll_view(view, scroll_steps);
2491 /* Draw the current line */
2492 draw_view_line(view, view->lineno - view->offset);
2494 wnoutrefresh(view->win);
2503 static void search_view(struct view *view, enum request request);
2506 select_view_line(struct view *view, unsigned long lineno)
2508 unsigned long old_lineno = view->lineno;
2509 unsigned long old_offset = view->offset;
2511 if (goto_view_line(view, view->offset, lineno)) {
2512 if (view_is_displayed(view)) {
2513 if (old_offset != view->offset) {
2516 draw_view_line(view, old_lineno - view->offset);
2517 draw_view_line(view, view->lineno - view->offset);
2518 wnoutrefresh(view->win);
2521 view->ops->select(view, &view->line[view->lineno]);
2527 find_next(struct view *view, enum request request)
2529 unsigned long lineno = view->lineno;
2534 report("No previous search");
2536 search_view(view, request);
2546 case REQ_SEARCH_BACK:
2555 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2556 lineno += direction;
2558 /* Note, lineno is unsigned long so will wrap around in which case it
2559 * will become bigger than view->lines. */
2560 for (; lineno < view->lines; lineno += direction) {
2561 if (view->ops->grep(view, &view->line[lineno])) {
2562 select_view_line(view, lineno);
2563 report("Line %ld matches '%s'", lineno + 1, view->grep);
2568 report("No match found for '%s'", view->grep);
2572 search_view(struct view *view, enum request request)
2577 regfree(view->regex);
2580 view->regex = calloc(1, sizeof(*view->regex));
2585 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2586 if (regex_err != 0) {
2587 char buf[SIZEOF_STR] = "unknown error";
2589 regerror(regex_err, view->regex, buf, sizeof(buf));
2590 report("Search failed: %s", buf);
2594 string_copy(view->grep, opt_search);
2596 find_next(view, request);
2600 * Incremental updating
2604 reset_view(struct view *view)
2608 for (i = 0; i < view->lines; i++)
2609 free(view->line[i].data);
2612 view->p_offset = view->offset;
2613 view->p_yoffset = view->yoffset;
2614 view->p_lineno = view->lineno;
2621 view->line_alloc = 0;
2623 view->update_secs = 0;
2627 free_argv(const char *argv[])
2631 for (argc = 0; argv[argc]; argc++)
2632 free((void *) argv[argc]);
2636 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2638 char buf[SIZEOF_STR];
2640 bool noreplace = flags == FORMAT_NONE;
2642 free_argv(dst_argv);
2644 for (argc = 0; src_argv[argc]; argc++) {
2645 const char *arg = src_argv[argc];
2649 char *next = strstr(arg, "%(");
2650 int len = next - arg;
2653 if (!next || noreplace) {
2654 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2659 } else if (!prefixcmp(next, "%(directory)")) {
2662 } else if (!prefixcmp(next, "%(file)")) {
2665 } else if (!prefixcmp(next, "%(ref)")) {
2666 value = *opt_ref ? opt_ref : "HEAD";
2668 } else if (!prefixcmp(next, "%(head)")) {
2671 } else if (!prefixcmp(next, "%(commit)")) {
2674 } else if (!prefixcmp(next, "%(blob)")) {
2678 report("Unknown replacement: `%s`", next);
2682 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2685 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2688 dst_argv[argc] = strdup(buf);
2689 if (!dst_argv[argc])
2693 dst_argv[argc] = NULL;
2695 return src_argv[argc] == NULL;
2699 restore_view_position(struct view *view)
2701 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2704 /* Changing the view position cancels the restoring. */
2705 /* FIXME: Changing back to the first line is not detected. */
2706 if (view->offset != 0 || view->lineno != 0) {
2707 view->p_restore = FALSE;
2711 if (goto_view_line(view, view->p_offset, view->p_lineno) &&
2712 view_is_displayed(view))
2715 view->yoffset = view->p_yoffset;
2716 view->p_restore = FALSE;
2722 end_update(struct view *view, bool force)
2726 while (!view->ops->read(view, NULL))
2729 set_nonblocking_input(FALSE);
2731 kill_io(view->pipe);
2732 done_io(view->pipe);
2737 setup_update(struct view *view, const char *vid)
2739 set_nonblocking_input(TRUE);
2741 string_copy_rev(view->vid, vid);
2742 view->pipe = &view->io;
2743 view->start_time = time(NULL);
2747 prepare_update(struct view *view, const char *argv[], const char *dir,
2748 enum format_flags flags)
2751 end_update(view, TRUE);
2752 return init_io_rd(&view->io, argv, dir, flags);
2756 prepare_update_file(struct view *view, const char *name)
2759 end_update(view, TRUE);
2760 return io_open(&view->io, name);
2764 begin_update(struct view *view, bool refresh)
2767 end_update(view, TRUE);
2770 if (!start_io(&view->io))
2774 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2777 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2780 /* Put the current ref_* value to the view title ref
2781 * member. This is needed by the blob view. Most other
2782 * views sets it automatically after loading because the
2783 * first line is a commit line. */
2784 string_copy_rev(view->ref, view->id);
2787 setup_update(view, view->id);
2792 #define ITEM_CHUNK_SIZE 256
2794 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2796 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2797 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2799 if (mem == NULL || num_chunks != num_chunks_new) {
2800 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2801 mem = realloc(mem, *size * item_size);
2807 static struct line *
2808 realloc_lines(struct view *view, size_t line_size)
2810 size_t alloc = view->line_alloc;
2811 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2812 sizeof(*view->line));
2818 view->line_alloc = alloc;
2823 update_view(struct view *view)
2825 char out_buffer[BUFSIZ * 2];
2827 /* Clear the view and redraw everything since the tree sorting
2828 * might have rearranged things. */
2829 bool redraw = view->lines == 0;
2830 bool can_read = TRUE;
2835 if (!io_can_read(view->pipe)) {
2836 if (view->lines == 0 && view_is_displayed(view)) {
2837 time_t secs = time(NULL) - view->start_time;
2839 if (secs > 1 && secs > view->update_secs) {
2840 if (view->update_secs == 0)
2842 update_view_title(view);
2843 view->update_secs = secs;
2849 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2850 if (opt_iconv != ICONV_NONE) {
2851 ICONV_CONST char *inbuf = line;
2852 size_t inlen = strlen(line) + 1;
2854 char *outbuf = out_buffer;
2855 size_t outlen = sizeof(out_buffer);
2859 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2860 if (ret != (size_t) -1)
2864 if (!view->ops->read(view, line)) {
2865 report("Allocation failure");
2866 end_update(view, TRUE);
2872 unsigned long lines = view->lines;
2875 for (digits = 0; lines; digits++)
2878 /* Keep the displayed view in sync with line number scaling. */
2879 if (digits != view->digits) {
2880 view->digits = digits;
2881 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2886 if (io_error(view->pipe)) {
2887 report("Failed to read: %s", io_strerror(view->pipe));
2888 end_update(view, TRUE);
2890 } else if (io_eof(view->pipe)) {
2892 end_update(view, FALSE);
2895 if (restore_view_position(view))
2898 if (!view_is_displayed(view))
2902 redraw_view_from(view, 0);
2904 redraw_view_dirty(view);
2906 /* Update the title _after_ the redraw so that if the redraw picks up a
2907 * commit reference in view->ref it'll be available here. */
2908 update_view_title(view);
2912 static struct line *
2913 add_line_data(struct view *view, void *data, enum line_type type)
2917 if (!realloc_lines(view, view->lines + 1))
2920 line = &view->line[view->lines++];
2921 memset(line, 0, sizeof(*line));
2929 static struct line *
2930 add_line_text(struct view *view, const char *text, enum line_type type)
2932 char *data = text ? strdup(text) : NULL;
2934 return data ? add_line_data(view, data, type) : NULL;
2937 static struct line *
2938 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2940 char buf[SIZEOF_STR];
2943 va_start(args, fmt);
2944 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2948 return buf[0] ? add_line_text(view, buf, type) : NULL;
2956 OPEN_DEFAULT = 0, /* Use default view switching. */
2957 OPEN_SPLIT = 1, /* Split current view. */
2958 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2959 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2960 OPEN_PREPARED = 32, /* Open already prepared command. */
2964 open_view(struct view *prev, enum request request, enum open_flags flags)
2966 bool split = !!(flags & OPEN_SPLIT);
2967 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2968 bool nomaximize = !!(flags & OPEN_REFRESH);
2969 struct view *view = VIEW(request);
2970 int nviews = displayed_views();
2971 struct view *base_view = display[0];
2973 if (view == prev && nviews == 1 && !reload) {
2974 report("Already in %s view", view->name);
2978 if (view->git_dir && !opt_git_dir[0]) {
2979 report("The %s view is disabled in pager view", view->name);
2986 } else if (!nomaximize) {
2987 /* Maximize the current view. */
2988 memset(display, 0, sizeof(display));
2990 display[current_view] = view;
2993 /* Resize the view when switching between split- and full-screen,
2994 * or when switching between two different full-screen views. */
2995 if (nviews != displayed_views() ||
2996 (nviews == 1 && base_view != display[0]))
2999 if (view->ops->open) {
3001 end_update(view, TRUE);
3002 if (!view->ops->open(view)) {
3003 report("Failed to load %s view", view->name);
3006 restore_view_position(view);
3008 } else if ((reload || strcmp(view->vid, view->id)) &&
3009 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
3010 report("Failed to load %s view", view->name);
3014 if (split && prev->lineno - prev->offset >= prev->height) {
3015 /* Take the title line into account. */
3016 int lines = prev->lineno - prev->offset - prev->height + 1;
3018 /* Scroll the view that was split if the current line is
3019 * outside the new limited view. */
3020 do_scroll_view(prev, lines);
3023 if (prev && view != prev) {
3025 /* "Blur" the previous view. */
3026 update_view_title(prev);
3029 view->parent = prev;
3032 if (view->pipe && view->lines == 0) {
3033 /* Clear the old view and let the incremental updating refill
3036 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
3038 } else if (view_is_displayed(view)) {
3045 open_external_viewer(const char *argv[], const char *dir)
3047 def_prog_mode(); /* save current tty modes */
3048 endwin(); /* restore original tty modes */
3049 run_io_fg(argv, dir);
3050 fprintf(stderr, "Press Enter to continue");
3053 redraw_display(TRUE);
3057 open_mergetool(const char *file)
3059 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
3061 open_external_viewer(mergetool_argv, opt_cdup);
3065 open_editor(bool from_root, const char *file)
3067 const char *editor_argv[] = { "vi", file, NULL };
3070 editor = getenv("GIT_EDITOR");
3071 if (!editor && *opt_editor)
3072 editor = opt_editor;
3074 editor = getenv("VISUAL");
3076 editor = getenv("EDITOR");
3080 editor_argv[0] = editor;
3081 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3085 open_run_request(enum request request)
3087 struct run_request *req = get_run_request(request);
3088 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3091 report("Unknown run request");
3095 if (format_argv(argv, req->argv, FORMAT_ALL))
3096 open_external_viewer(argv, NULL);
3101 * User request switch noodle
3105 view_driver(struct view *view, enum request request)
3109 if (request == REQ_NONE)
3112 if (request > REQ_NONE) {
3113 open_run_request(request);
3114 /* FIXME: When all views can refresh always do this. */
3115 if (view == VIEW(REQ_VIEW_STATUS) ||
3116 view == VIEW(REQ_VIEW_MAIN) ||
3117 view == VIEW(REQ_VIEW_LOG) ||
3118 view == VIEW(REQ_VIEW_STAGE))
3119 request = REQ_REFRESH;
3124 if (view && view->lines) {
3125 request = view->ops->request(view, request, &view->line[view->lineno]);
3126 if (request == REQ_NONE)
3133 case REQ_MOVE_PAGE_UP:
3134 case REQ_MOVE_PAGE_DOWN:
3135 case REQ_MOVE_FIRST_LINE:
3136 case REQ_MOVE_LAST_LINE:
3137 move_view(view, request);
3140 case REQ_SCROLL_LEFT:
3141 case REQ_SCROLL_RIGHT:
3142 case REQ_SCROLL_LINE_DOWN:
3143 case REQ_SCROLL_LINE_UP:
3144 case REQ_SCROLL_PAGE_DOWN:
3145 case REQ_SCROLL_PAGE_UP:
3146 scroll_view(view, request);
3149 case REQ_VIEW_BLAME:
3151 report("No file chosen, press %s to open tree view",
3152 get_key(REQ_VIEW_TREE));
3155 open_view(view, request, OPEN_DEFAULT);
3160 report("No file chosen, press %s to open tree view",
3161 get_key(REQ_VIEW_TREE));
3164 open_view(view, request, OPEN_DEFAULT);
3167 case REQ_VIEW_PAGER:
3168 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3169 report("No pager content, press %s to run command from prompt",
3170 get_key(REQ_PROMPT));
3173 open_view(view, request, OPEN_DEFAULT);
3176 case REQ_VIEW_STAGE:
3177 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3178 report("No stage content, press %s to open the status view and choose file",
3179 get_key(REQ_VIEW_STATUS));
3182 open_view(view, request, OPEN_DEFAULT);
3185 case REQ_VIEW_STATUS:
3186 if (opt_is_inside_work_tree == FALSE) {
3187 report("The status view requires a working tree");
3190 open_view(view, request, OPEN_DEFAULT);
3198 open_view(view, request, OPEN_DEFAULT);
3203 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3205 if ((view == VIEW(REQ_VIEW_DIFF) &&
3206 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3207 (view == VIEW(REQ_VIEW_DIFF) &&
3208 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3209 (view == VIEW(REQ_VIEW_STAGE) &&
3210 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3211 (view == VIEW(REQ_VIEW_BLOB) &&
3212 view->parent == VIEW(REQ_VIEW_TREE))) {
3215 view = view->parent;
3216 line = view->lineno;
3217 move_view(view, request);
3218 if (view_is_displayed(view))
3219 update_view_title(view);
3220 if (line != view->lineno)
3221 view->ops->request(view, REQ_ENTER,
3222 &view->line[view->lineno]);
3225 move_view(view, request);
3231 int nviews = displayed_views();
3232 int next_view = (current_view + 1) % nviews;
3234 if (next_view == current_view) {
3235 report("Only one view is displayed");
3239 current_view = next_view;
3240 /* Blur out the title of the previous view. */
3241 update_view_title(view);
3246 report("Refreshing is not yet supported for the %s view", view->name);
3250 if (displayed_views() == 2)
3251 maximize_view(view);
3254 case REQ_TOGGLE_LINENO:
3255 toggle_view_option(&opt_line_number, "line numbers");
3258 case REQ_TOGGLE_DATE:
3259 toggle_view_option(&opt_date, "date display");
3262 case REQ_TOGGLE_AUTHOR:
3263 toggle_view_option(&opt_author, "author display");
3266 case REQ_TOGGLE_REV_GRAPH:
3267 toggle_view_option(&opt_rev_graph, "revision graph display");
3270 case REQ_TOGGLE_REFS:
3271 toggle_view_option(&opt_show_refs, "reference display");
3275 case REQ_SEARCH_BACK:
3276 search_view(view, request);
3281 find_next(view, request);
3284 case REQ_STOP_LOADING:
3285 for (i = 0; i < ARRAY_SIZE(views); i++) {
3288 report("Stopped loading the %s view", view->name),
3289 end_update(view, TRUE);
3293 case REQ_SHOW_VERSION:
3294 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3297 case REQ_SCREEN_REDRAW:
3298 redraw_display(TRUE);
3302 report("Nothing to edit");
3306 report("Nothing to enter");
3309 case REQ_VIEW_CLOSE:
3310 /* XXX: Mark closed views by letting view->parent point to the
3311 * view itself. Parents to closed view should never be
3314 view->parent->parent != view->parent) {
3315 maximize_view(view->parent);
3316 view->parent = view;
3324 report("Unknown key, press 'h' for help");
3333 * View backend utilities
3336 /* Small author cache to reduce memory consumption. It uses binary
3337 * search to lookup or find place to position new entries. No entries
3338 * are ever freed. */
3340 get_author(const char *name)
3342 static const char **authors;
3343 static size_t authors_alloc;
3344 static size_t authors_size;
3346 int from = 0, to = authors_size - 1;
3348 while (from <= to) {
3349 size_t pos = (to + from) / 2;
3350 int cmp = strcmp(name, authors[pos]);
3353 return authors[pos];
3361 tmp = realloc_items(authors, &authors_alloc, authors_size + 1, sizeof(*authors));
3364 name = strdup(name);
3369 memmove(authors + from + 1, authors + from, (authors_size - from) * sizeof(*authors));
3370 authors[from] = name;
3377 parse_timezone(time_t *time, const char *zone)
3381 tz = ('0' - zone[1]) * 60 * 60 * 10;
3382 tz += ('0' - zone[2]) * 60 * 60;
3383 tz += ('0' - zone[3]) * 60;
3384 tz += ('0' - zone[4]);
3392 /* Parse author lines where the name may be empty:
3393 * author <email@address.tld> 1138474660 +0100
3396 parse_author_line(char *ident, const char **author, time_t *time)
3398 char *nameend = strchr(ident, '<');
3399 char *emailend = strchr(ident, '>');
3401 if (nameend && emailend)
3402 *nameend = *emailend = 0;
3403 ident = chomp_string(ident);
3406 ident = chomp_string(nameend + 1);
3411 *author = get_author(ident);
3413 /* Parse epoch and timezone */
3414 if (emailend && emailend[1] == ' ') {
3415 char *secs = emailend + 2;
3416 char *zone = strchr(secs, ' ');
3418 *time = (time_t) atol(secs);
3420 if (zone && strlen(zone) == STRING_SIZE(" +0700"))
3421 parse_timezone(time, zone + 1);
3425 static enum input_status
3426 select_commit_parent_handler(void *data, char *buf, int c)
3428 size_t parents = *(size_t *) data;
3435 parent = atoi(buf) * 10;
3438 if (parent > parents)
3444 select_commit_parent(const char *id, char rev[SIZEOF_REV], const char *path)
3446 char buf[SIZEOF_STR * 4];
3447 const char *revlist_argv[] = {
3448 "git", "rev-list", "-1", "--parents", id, "--", path, NULL
3452 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3453 !*chomp_string(buf) ||
3454 (parents = (strlen(buf) / 40) - 1) < 0) {
3455 report("Failed to get parent information");
3458 } else if (parents == 0) {
3460 report("Path '%s' does not exist in the parent", path);
3462 report("The selected commit has no parents");
3467 char prompt[SIZEOF_STR];
3470 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3472 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3475 parents = atoi(result);
3478 string_copy_rev(rev, &buf[41 * parents]);
3487 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3489 char text[SIZEOF_STR];
3491 if (opt_line_number && draw_lineno(view, lineno))
3494 string_expand(text, sizeof(text), line->data, opt_tab_size);
3495 draw_text(view, line->type, text, TRUE);
3500 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3502 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3503 char refbuf[SIZEOF_STR];
3506 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3507 ref = chomp_string(refbuf);
3512 /* This is the only fatal call, since it can "corrupt" the buffer. */
3513 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3520 add_pager_refs(struct view *view, struct line *line)
3522 char buf[SIZEOF_STR];
3523 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3525 size_t bufpos = 0, refpos = 0;
3526 const char *sep = "Refs: ";
3527 bool is_tag = FALSE;
3529 assert(line->type == LINE_COMMIT);
3531 refs = get_refs(commit_id);
3533 if (view == VIEW(REQ_VIEW_DIFF))
3534 goto try_add_describe_ref;
3539 struct ref *ref = refs[refpos];
3540 const char *fmt = ref->tag ? "%s[%s]" :
3541 ref->remote ? "%s<%s>" : "%s%s";
3543 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3548 } while (refs[refpos++]->next);
3550 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3551 try_add_describe_ref:
3552 /* Add <tag>-g<commit_id> "fake" reference. */
3553 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3560 add_line_text(view, buf, LINE_PP_REFS);
3564 pager_read(struct view *view, char *data)
3571 line = add_line_text(view, data, get_line_type(data));
3575 if (line->type == LINE_COMMIT &&
3576 (view == VIEW(REQ_VIEW_DIFF) ||
3577 view == VIEW(REQ_VIEW_LOG)))
3578 add_pager_refs(view, line);
3584 pager_request(struct view *view, enum request request, struct line *line)
3588 if (request != REQ_ENTER)
3591 if (line->type == LINE_COMMIT &&
3592 (view == VIEW(REQ_VIEW_LOG) ||
3593 view == VIEW(REQ_VIEW_PAGER))) {
3594 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3598 /* Always scroll the view even if it was split. That way
3599 * you can use Enter to scroll through the log view and
3600 * split open each commit diff. */
3601 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3603 /* FIXME: A minor workaround. Scrolling the view will call report("")
3604 * but if we are scrolling a non-current view this won't properly
3605 * update the view title. */
3607 update_view_title(view);
3613 pager_grep(struct view *view, struct line *line)
3616 char *text = line->data;
3621 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3628 pager_select(struct view *view, struct line *line)
3630 if (line->type == LINE_COMMIT) {
3631 char *text = (char *)line->data + STRING_SIZE("commit ");
3633 if (view != VIEW(REQ_VIEW_PAGER))
3634 string_copy_rev(view->ref, text);
3635 string_copy_rev(ref_commit, text);
3639 static struct view_ops pager_ops = {
3650 static const char *log_argv[SIZEOF_ARG] = {
3651 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3655 log_request(struct view *view, enum request request, struct line *line)
3660 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3663 return pager_request(view, request, line);
3667 static struct view_ops log_ops = {
3678 static const char *diff_argv[SIZEOF_ARG] = {
3679 "git", "show", "--pretty=fuller", "--no-color", "--root",
3680 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3683 static struct view_ops diff_ops = {
3699 help_open(struct view *view)
3701 char buf[SIZEOF_STR];
3705 if (view->lines > 0)
3708 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3710 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3713 if (req_info[i].request == REQ_NONE)
3716 if (!req_info[i].request) {
3717 add_line_text(view, "", LINE_DEFAULT);
3718 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3722 key = get_key(req_info[i].request);
3724 key = "(no key defined)";
3726 for (bufpos = 0; bufpos <= req_info[i].namelen; bufpos++) {
3727 buf[bufpos] = tolower(req_info[i].name[bufpos]);
3728 if (buf[bufpos] == '_')
3732 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s",
3733 key, buf, req_info[i].help);
3737 add_line_text(view, "", LINE_DEFAULT);
3738 add_line_text(view, "External commands:", LINE_DEFAULT);
3741 for (i = 0; i < run_requests; i++) {
3742 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3749 key = get_key_name(req->key);
3751 key = "(no key defined)";
3753 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3754 if (!string_format_from(buf, &bufpos, "%s%s",
3755 argc ? " " : "", req->argv[argc]))
3758 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3759 keymap_table[req->keymap].name, key, buf);
3765 static struct view_ops help_ops = {
3781 struct tree_stack_entry {
3782 struct tree_stack_entry *prev; /* Entry below this in the stack */
3783 unsigned long lineno; /* Line number to restore */
3784 char *name; /* Position of name in opt_path */
3787 /* The top of the path stack. */
3788 static struct tree_stack_entry *tree_stack = NULL;
3789 unsigned long tree_lineno = 0;
3792 pop_tree_stack_entry(void)
3794 struct tree_stack_entry *entry = tree_stack;
3796 tree_lineno = entry->lineno;
3798 tree_stack = entry->prev;
3803 push_tree_stack_entry(const char *name, unsigned long lineno)
3805 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3806 size_t pathlen = strlen(opt_path);
3811 entry->prev = tree_stack;
3812 entry->name = opt_path + pathlen;
3815 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3816 pop_tree_stack_entry();
3820 /* Move the current line to the first tree entry. */
3822 entry->lineno = lineno;
3825 /* Parse output from git-ls-tree(1):
3827 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3830 #define SIZEOF_TREE_ATTR \
3831 STRING_SIZE("100644 blob f931e1d229c3e185caad4449bf5b66ed72462657\t")
3833 #define SIZEOF_TREE_MODE \
3834 STRING_SIZE("100644 ")
3836 #define TREE_ID_OFFSET \
3837 STRING_SIZE("100644 blob ")
3840 char id[SIZEOF_REV];
3842 time_t time; /* Date from the author ident. */
3843 const char *author; /* Author of the commit. */
3848 tree_path(struct line *line)
3850 return ((struct tree_entry *) line->data)->name;
3855 tree_compare_entry(struct line *line1, struct line *line2)
3857 if (line1->type != line2->type)
3858 return line1->type == LINE_TREE_DIR ? -1 : 1;
3859 return strcmp(tree_path(line1), tree_path(line2));
3862 static struct line *
3863 tree_entry(struct view *view, enum line_type type, const char *path,
3864 const char *mode, const char *id)
3866 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3867 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3869 if (!entry || !line) {
3874 strncpy(entry->name, path, strlen(path));
3876 entry->mode = strtoul(mode, NULL, 8);
3878 string_copy_rev(entry->id, id);
3884 tree_read_date(struct view *view, char *text, bool *read_date)
3886 static const char *author_name;
3887 static time_t author_time;
3889 if (!text && *read_date) {
3894 char *path = *opt_path ? opt_path : ".";
3895 /* Find next entry to process */
3896 const char *log_file[] = {
3897 "git", "log", "--no-color", "--pretty=raw",
3898 "--cc", "--raw", view->id, "--", path, NULL
3903 tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL);
3904 report("Tree is empty");
3908 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3909 report("Failed to load tree data");
3913 done_io(view->pipe);
3918 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3919 parse_author_line(text + STRING_SIZE("author "),
3920 &author_name, &author_time);
3922 } else if (*text == ':') {
3924 size_t annotated = 1;
3927 pos = strchr(text, '\t');
3931 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3932 text += strlen(opt_prefix);
3933 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3934 text += strlen(opt_path);
3935 pos = strchr(text, '/');
3939 for (i = 1; i < view->lines; i++) {
3940 struct line *line = &view->line[i];
3941 struct tree_entry *entry = line->data;
3943 annotated += !!entry->author;
3944 if (entry->author || strcmp(entry->name, text))
3947 entry->author = author_name;
3948 entry->time = author_time;
3953 if (annotated == view->lines)
3954 kill_io(view->pipe);
3960 tree_read(struct view *view, char *text)
3962 static bool read_date = FALSE;
3963 struct tree_entry *data;
3964 struct line *entry, *line;
3965 enum line_type type;
3966 size_t textlen = text ? strlen(text) : 0;
3967 char *path = text + SIZEOF_TREE_ATTR;
3969 if (read_date || !text)
3970 return tree_read_date(view, text, &read_date);
3972 if (textlen <= SIZEOF_TREE_ATTR)
3974 if (view->lines == 0 &&
3975 !tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL))
3978 /* Strip the path part ... */
3980 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3981 size_t striplen = strlen(opt_path);
3983 if (pathlen > striplen)
3984 memmove(path, path + striplen,
3985 pathlen - striplen + 1);
3987 /* Insert "link" to parent directory. */
3988 if (view->lines == 1 &&
3989 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3993 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3994 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3999 /* Skip "Directory ..." and ".." line. */
4000 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
4001 if (tree_compare_entry(line, entry) <= 0)
4004 memmove(line + 1, line, (entry - line) * sizeof(*entry));
4008 for (; line <= entry; line++)
4009 line->dirty = line->cleareol = 1;
4013 if (tree_lineno > view->lineno) {
4014 view->lineno = tree_lineno;
4022 tree_draw(struct view *view, struct line *line, unsigned int lineno)
4024 struct tree_entry *entry = line->data;
4026 if (line->type == LINE_TREE_HEAD) {
4027 if (draw_text(view, line->type, "Directory path /", TRUE))
4030 if (draw_mode(view, entry->mode))
4033 if (opt_author && draw_author(view, entry->author))
4036 if (opt_date && draw_date(view, entry->author ? &entry->time : NULL))
4039 if (draw_text(view, line->type, entry->name, TRUE))
4047 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
4048 int fd = mkstemp(file);
4051 report("Failed to create temporary file");
4052 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
4053 report("Failed to save blob data to file");
4055 open_editor(FALSE, file);
4061 tree_request(struct view *view, enum request request, struct line *line)
4063 enum open_flags flags;
4066 case REQ_VIEW_BLAME:
4067 if (line->type != LINE_TREE_FILE) {
4068 report("Blame only supported for files");
4072 string_copy(opt_ref, view->vid);
4076 if (line->type != LINE_TREE_FILE) {
4077 report("Edit only supported for files");
4078 } else if (!is_head_commit(view->vid)) {
4081 open_editor(TRUE, opt_file);
4087 /* quit view if at top of tree */
4088 return REQ_VIEW_CLOSE;
4091 line = &view->line[1];
4101 /* Cleanup the stack if the tree view is at a different tree. */
4102 while (!*opt_path && tree_stack)
4103 pop_tree_stack_entry();
4105 switch (line->type) {
4107 /* Depending on whether it is a subdirectory or parent link
4108 * mangle the path buffer. */
4109 if (line == &view->line[1] && *opt_path) {
4110 pop_tree_stack_entry();
4113 const char *basename = tree_path(line);
4115 push_tree_stack_entry(basename, view->lineno);
4118 /* Trees and subtrees share the same ID, so they are not not
4119 * unique like blobs. */
4120 flags = OPEN_RELOAD;
4121 request = REQ_VIEW_TREE;
4124 case LINE_TREE_FILE:
4125 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4126 request = REQ_VIEW_BLOB;
4133 open_view(view, request, flags);
4134 if (request == REQ_VIEW_TREE)
4135 view->lineno = tree_lineno;
4141 tree_select(struct view *view, struct line *line)
4143 struct tree_entry *entry = line->data;
4145 if (line->type == LINE_TREE_FILE) {
4146 string_copy_rev(ref_blob, entry->id);
4147 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4149 } else if (line->type != LINE_TREE_DIR) {
4153 string_copy_rev(view->ref, entry->id);
4156 static const char *tree_argv[SIZEOF_ARG] = {
4157 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4160 static struct view_ops tree_ops = {
4172 blob_read(struct view *view, char *line)
4176 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4180 blob_request(struct view *view, enum request request, struct line *line)
4187 return pager_request(view, request, line);
4191 static const char *blob_argv[SIZEOF_ARG] = {
4192 "git", "cat-file", "blob", "%(blob)", NULL
4195 static struct view_ops blob_ops = {
4209 * Loading the blame view is a two phase job:
4211 * 1. File content is read either using opt_file from the
4212 * filesystem or using git-cat-file.
4213 * 2. Then blame information is incrementally added by
4214 * reading output from git-blame.
4217 static const char *blame_head_argv[] = {
4218 "git", "blame", "--incremental", "--", "%(file)", NULL
4221 static const char *blame_ref_argv[] = {
4222 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4225 static const char *blame_cat_file_argv[] = {
4226 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4229 struct blame_commit {
4230 char id[SIZEOF_REV]; /* SHA1 ID. */
4231 char title[128]; /* First line of the commit message. */
4232 const char *author; /* Author of the commit. */
4233 time_t time; /* Date from the author ident. */
4234 char filename[128]; /* Name of file. */
4235 bool has_previous; /* Was a "previous" line detected. */
4239 struct blame_commit *commit;
4240 unsigned long lineno;
4245 blame_open(struct view *view)
4247 if (*opt_ref || !io_open(&view->io, opt_file)) {
4248 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4252 setup_update(view, opt_file);
4253 string_format(view->ref, "%s ...", opt_file);
4258 static struct blame_commit *
4259 get_blame_commit(struct view *view, const char *id)
4263 for (i = 0; i < view->lines; i++) {
4264 struct blame *blame = view->line[i].data;
4269 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4270 return blame->commit;
4274 struct blame_commit *commit = calloc(1, sizeof(*commit));
4277 string_ncopy(commit->id, id, SIZEOF_REV);
4283 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4285 const char *pos = *posref;
4288 pos = strchr(pos + 1, ' ');
4289 if (!pos || !isdigit(pos[1]))
4291 *number = atoi(pos + 1);
4292 if (*number < min || *number > max)
4299 static struct blame_commit *
4300 parse_blame_commit(struct view *view, const char *text, int *blamed)
4302 struct blame_commit *commit;
4303 struct blame *blame;
4304 const char *pos = text + SIZEOF_REV - 2;
4305 size_t orig_lineno = 0;
4309 if (strlen(text) <= SIZEOF_REV || pos[1] != ' ')
4312 if (!parse_number(&pos, &orig_lineno, 1, 9999999) ||
4313 !parse_number(&pos, &lineno, 1, view->lines) ||
4314 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4317 commit = get_blame_commit(view, text);
4323 struct line *line = &view->line[lineno + group - 1];
4326 blame->commit = commit;
4327 blame->lineno = orig_lineno + group - 1;
4335 blame_read_file(struct view *view, const char *line, bool *read_file)
4338 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4341 if (view->lines == 0 && !view->parent)
4342 die("No blame exist for %s", view->vid);
4344 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4345 report("Failed to load blame data");
4349 done_io(view->pipe);
4355 size_t linelen = strlen(line);
4356 struct blame *blame = malloc(sizeof(*blame) + linelen);
4361 blame->commit = NULL;
4362 strncpy(blame->text, line, linelen);
4363 blame->text[linelen] = 0;
4364 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4369 match_blame_header(const char *name, char **line)
4371 size_t namelen = strlen(name);
4372 bool matched = !strncmp(name, *line, namelen);
4381 blame_read(struct view *view, char *line)
4383 static struct blame_commit *commit = NULL;
4384 static int blamed = 0;
4385 static bool read_file = TRUE;
4388 return blame_read_file(view, line, &read_file);
4395 string_format(view->ref, "%s", view->vid);
4396 if (view_is_displayed(view)) {
4397 update_view_title(view);
4398 redraw_view_from(view, 0);
4404 commit = parse_blame_commit(view, line, &blamed);
4405 string_format(view->ref, "%s %2d%%", view->vid,
4406 view->lines ? blamed * 100 / view->lines : 0);
4408 } else if (match_blame_header("author ", &line)) {
4409 commit->author = get_author(line);
4411 } else if (match_blame_header("author-time ", &line)) {
4412 commit->time = (time_t) atol(line);
4414 } else if (match_blame_header("author-tz ", &line)) {
4415 parse_timezone(&commit->time, line);
4417 } else if (match_blame_header("summary ", &line)) {
4418 string_ncopy(commit->title, line, strlen(line));
4420 } else if (match_blame_header("previous ", &line)) {
4421 commit->has_previous = TRUE;
4423 } else if (match_blame_header("filename ", &line)) {
4424 string_ncopy(commit->filename, line, strlen(line));
4432 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4434 struct blame *blame = line->data;
4435 time_t *time = NULL;
4436 const char *id = NULL, *author = NULL;
4437 char text[SIZEOF_STR];
4439 if (blame->commit && *blame->commit->filename) {
4440 id = blame->commit->id;
4441 author = blame->commit->author;
4442 time = &blame->commit->time;
4445 if (opt_date && draw_date(view, time))
4448 if (opt_author && draw_author(view, author))
4451 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4454 if (draw_lineno(view, lineno))
4457 string_expand(text, sizeof(text), blame->text, opt_tab_size);
4458 draw_text(view, LINE_DEFAULT, text, TRUE);
4463 check_blame_commit(struct blame *blame, bool check_null_id)
4466 report("Commit data not loaded yet");
4467 else if (check_null_id && !strcmp(blame->commit->id, NULL_ID))
4468 report("No commit exist for the selected line");
4475 setup_blame_parent_line(struct view *view, struct blame *blame)
4477 const char *diff_tree_argv[] = {
4478 "git", "diff-tree", "-U0", blame->commit->id,
4479 "--", blame->commit->filename, NULL
4482 int parent_lineno = -1;
4483 int blamed_lineno = -1;
4486 if (!run_io(&io, diff_tree_argv, NULL, IO_RD))
4489 while ((line = io_get(&io, '\n', TRUE))) {
4491 char *pos = strchr(line, '+');
4493 parent_lineno = atoi(line + 4);
4495 blamed_lineno = atoi(pos + 1);
4497 } else if (*line == '+' && parent_lineno != -1) {
4498 if (blame->lineno == blamed_lineno - 1 &&
4499 !strcmp(blame->text, line + 1)) {
4500 view->lineno = parent_lineno ? parent_lineno - 1 : 0;
4511 blame_request(struct view *view, enum request request, struct line *line)
4513 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4514 struct blame *blame = line->data;
4517 case REQ_VIEW_BLAME:
4518 if (check_blame_commit(blame, TRUE)) {
4519 string_copy(opt_ref, blame->commit->id);
4520 string_copy(opt_file, blame->commit->filename);
4522 view->lineno = blame->lineno;
4523 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4528 if (check_blame_commit(blame, TRUE) &&
4529 select_commit_parent(blame->commit->id, opt_ref,
4530 blame->commit->filename)) {
4531 string_copy(opt_file, blame->commit->filename);
4532 setup_blame_parent_line(view, blame);
4533 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4538 if (!check_blame_commit(blame, FALSE))
4541 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4542 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4545 if (!strcmp(blame->commit->id, NULL_ID)) {
4546 struct view *diff = VIEW(REQ_VIEW_DIFF);
4547 const char *diff_index_argv[] = {
4548 "git", "diff-index", "--root", "--patch-with-stat",
4549 "-C", "-M", "HEAD", "--", view->vid, NULL
4552 if (!blame->commit->has_previous) {
4553 diff_index_argv[1] = "diff";
4554 diff_index_argv[2] = "--no-color";
4555 diff_index_argv[6] = "--";
4556 diff_index_argv[7] = "/dev/null";
4559 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4560 report("Failed to allocate diff command");
4563 flags |= OPEN_PREPARED;
4566 open_view(view, REQ_VIEW_DIFF, flags);
4567 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4568 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4579 blame_grep(struct view *view, struct line *line)
4581 struct blame *blame = line->data;
4582 struct blame_commit *commit = blame->commit;
4585 #define MATCH(text, on) \
4586 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4589 if (MATCH(commit->title, 1) ||
4590 MATCH(commit->author, opt_author) ||
4591 MATCH(commit->id, opt_date))
4594 if (MATCH(mkdate(&commit->time), 1))
4598 return MATCH(blame->text, 1);
4604 blame_select(struct view *view, struct line *line)
4606 struct blame *blame = line->data;
4607 struct blame_commit *commit = blame->commit;
4612 if (!strcmp(commit->id, NULL_ID))
4613 string_ncopy(ref_commit, "HEAD", 4);
4615 string_copy_rev(ref_commit, commit->id);
4618 static struct view_ops blame_ops = {
4637 char rev[SIZEOF_REV];
4638 char name[SIZEOF_STR];
4642 char rev[SIZEOF_REV];
4643 char name[SIZEOF_STR];
4647 static char status_onbranch[SIZEOF_STR];
4648 static struct status stage_status;
4649 static enum line_type stage_line_type;
4650 static size_t stage_chunks;
4651 static int *stage_chunk;
4653 /* This should work even for the "On branch" line. */
4655 status_has_none(struct view *view, struct line *line)
4657 return line < view->line + view->lines && !line[1].data;
4660 /* Get fields from the diff line:
4661 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4664 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4666 const char *old_mode = buf + 1;
4667 const char *new_mode = buf + 8;
4668 const char *old_rev = buf + 15;
4669 const char *new_rev = buf + 56;
4670 const char *status = buf + 97;
4673 old_mode[-1] != ':' ||
4674 new_mode[-1] != ' ' ||
4675 old_rev[-1] != ' ' ||
4676 new_rev[-1] != ' ' ||
4680 file->status = *status;
4682 string_copy_rev(file->old.rev, old_rev);
4683 string_copy_rev(file->new.rev, new_rev);
4685 file->old.mode = strtoul(old_mode, NULL, 8);
4686 file->new.mode = strtoul(new_mode, NULL, 8);
4688 file->old.name[0] = file->new.name[0] = 0;
4694 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4696 struct status *unmerged = NULL;
4700 if (!run_io(&io, argv, NULL, IO_RD))
4703 add_line_data(view, NULL, type);
4705 while ((buf = io_get(&io, 0, TRUE))) {
4706 struct status *file = unmerged;
4709 file = calloc(1, sizeof(*file));
4710 if (!file || !add_line_data(view, file, type))
4714 /* Parse diff info part. */
4716 file->status = status;
4718 string_copy(file->old.rev, NULL_ID);
4720 } else if (!file->status || file == unmerged) {
4721 if (!status_get_diff(file, buf, strlen(buf)))
4724 buf = io_get(&io, 0, TRUE);
4728 /* Collapse all modified entries that follow an
4729 * associated unmerged entry. */
4730 if (unmerged == file) {
4731 unmerged->status = 'U';
4733 } else if (file->status == 'U') {
4738 /* Grab the old name for rename/copy. */
4739 if (!*file->old.name &&
4740 (file->status == 'R' || file->status == 'C')) {
4741 string_ncopy(file->old.name, buf, strlen(buf));
4743 buf = io_get(&io, 0, TRUE);
4748 /* git-ls-files just delivers a NUL separated list of
4749 * file names similar to the second half of the
4750 * git-diff-* output. */
4751 string_ncopy(file->new.name, buf, strlen(buf));
4752 if (!*file->old.name)
4753 string_copy(file->old.name, file->new.name);
4757 if (io_error(&io)) {
4763 if (!view->line[view->lines - 1].data)
4764 add_line_data(view, NULL, LINE_STAT_NONE);
4770 /* Don't show unmerged entries in the staged section. */
4771 static const char *status_diff_index_argv[] = {
4772 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4773 "--cached", "-M", "HEAD", NULL
4776 static const char *status_diff_files_argv[] = {
4777 "git", "diff-files", "-z", NULL
4780 static const char *status_list_other_argv[] = {
4781 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4784 static const char *status_list_no_head_argv[] = {
4785 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4788 static const char *update_index_argv[] = {
4789 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4792 /* Restore the previous line number to stay in the context or select a
4793 * line with something that can be updated. */
4795 status_restore(struct view *view)
4797 if (view->p_lineno >= view->lines)
4798 view->p_lineno = view->lines - 1;
4799 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4801 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4804 /* If the above fails, always skip the "On branch" line. */
4805 if (view->p_lineno < view->lines)
4806 view->lineno = view->p_lineno;
4810 if (view->lineno < view->offset)
4811 view->offset = view->lineno;
4812 else if (view->offset + view->height <= view->lineno)
4813 view->offset = view->lineno - view->height + 1;
4815 view->p_restore = FALSE;
4819 status_update_onbranch(void)
4821 static const char *paths[][2] = {
4822 { "rebase-apply/rebasing", "Rebasing" },
4823 { "rebase-apply/applying", "Applying mailbox" },
4824 { "rebase-apply/", "Rebasing mailbox" },
4825 { "rebase-merge/interactive", "Interactive rebase" },
4826 { "rebase-merge/", "Rebase merge" },
4827 { "MERGE_HEAD", "Merging" },
4828 { "BISECT_LOG", "Bisecting" },
4829 { "HEAD", "On branch" },
4831 char buf[SIZEOF_STR];
4835 if (is_initial_commit()) {
4836 string_copy(status_onbranch, "Initial commit");
4840 for (i = 0; i < ARRAY_SIZE(paths); i++) {
4841 char *head = opt_head;
4843 if (!string_format(buf, "%s/%s", opt_git_dir, paths[i][0]) ||
4844 lstat(buf, &stat) < 0)
4850 if (string_format(buf, "%s/rebase-merge/head-name", opt_git_dir) &&
4851 io_open(&io, buf) &&
4852 io_read_buf(&io, buf, sizeof(buf))) {
4853 head = chomp_string(buf);
4854 if (!prefixcmp(head, "refs/heads/"))
4855 head += STRING_SIZE("refs/heads/");
4859 if (!string_format(status_onbranch, "%s %s", paths[i][1], head))
4860 string_copy(status_onbranch, opt_head);
4864 string_copy(status_onbranch, "Not currently on any branch");
4867 /* First parse staged info using git-diff-index(1), then parse unstaged
4868 * info using git-diff-files(1), and finally untracked files using
4869 * git-ls-files(1). */
4871 status_open(struct view *view)
4875 add_line_data(view, NULL, LINE_STAT_HEAD);
4876 status_update_onbranch();
4878 run_io_bg(update_index_argv);
4880 if (is_initial_commit()) {
4881 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4883 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4887 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4888 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4891 /* Restore the exact position or use the specialized restore
4893 if (!view->p_restore)
4894 status_restore(view);
4899 status_draw(struct view *view, struct line *line, unsigned int lineno)
4901 struct status *status = line->data;
4902 enum line_type type;
4906 switch (line->type) {
4907 case LINE_STAT_STAGED:
4908 type = LINE_STAT_SECTION;
4909 text = "Changes to be committed:";
4912 case LINE_STAT_UNSTAGED:
4913 type = LINE_STAT_SECTION;
4914 text = "Changed but not updated:";
4917 case LINE_STAT_UNTRACKED:
4918 type = LINE_STAT_SECTION;
4919 text = "Untracked files:";
4922 case LINE_STAT_NONE:
4923 type = LINE_DEFAULT;
4924 text = " (no files)";
4927 case LINE_STAT_HEAD:
4928 type = LINE_STAT_HEAD;
4929 text = status_onbranch;
4936 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4938 buf[0] = status->status;
4939 if (draw_text(view, line->type, buf, TRUE))
4941 type = LINE_DEFAULT;
4942 text = status->new.name;
4945 draw_text(view, type, text, TRUE);
4950 status_load_error(struct view *view, struct view *stage, const char *path)
4952 if (displayed_views() == 2 || display[current_view] != view)
4953 maximize_view(view);
4954 report("Failed to load '%s': %s", path, io_strerror(&stage->io));
4959 status_enter(struct view *view, struct line *line)
4961 struct status *status = line->data;
4962 const char *oldpath = status ? status->old.name : NULL;
4963 /* Diffs for unmerged entries are empty when passing the new
4964 * path, so leave it empty. */
4965 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4967 enum open_flags split;
4968 struct view *stage = VIEW(REQ_VIEW_STAGE);
4970 if (line->type == LINE_STAT_NONE ||
4971 (!status && line[1].type == LINE_STAT_NONE)) {
4972 report("No file to diff");
4976 switch (line->type) {
4977 case LINE_STAT_STAGED:
4978 if (is_initial_commit()) {
4979 const char *no_head_diff_argv[] = {
4980 "git", "diff", "--no-color", "--patch-with-stat",
4981 "--", "/dev/null", newpath, NULL
4984 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4985 return status_load_error(view, stage, newpath);
4987 const char *index_show_argv[] = {
4988 "git", "diff-index", "--root", "--patch-with-stat",
4989 "-C", "-M", "--cached", "HEAD", "--",
4990 oldpath, newpath, NULL
4993 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4994 return status_load_error(view, stage, newpath);
4998 info = "Staged changes to %s";
5000 info = "Staged changes";
5003 case LINE_STAT_UNSTAGED:
5005 const char *files_show_argv[] = {
5006 "git", "diff-files", "--root", "--patch-with-stat",
5007 "-C", "-M", "--", oldpath, newpath, NULL
5010 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
5011 return status_load_error(view, stage, newpath);
5013 info = "Unstaged changes to %s";
5015 info = "Unstaged changes";
5018 case LINE_STAT_UNTRACKED:
5020 report("No file to show");
5024 if (!suffixcmp(status->new.name, -1, "/")) {
5025 report("Cannot display a directory");
5029 if (!prepare_update_file(stage, newpath))
5030 return status_load_error(view, stage, newpath);
5031 info = "Untracked file %s";
5034 case LINE_STAT_HEAD:
5038 die("line type %d not handled in switch", line->type);
5041 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
5042 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
5043 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
5045 stage_status = *status;
5047 memset(&stage_status, 0, sizeof(stage_status));
5050 stage_line_type = line->type;
5052 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
5059 status_exists(struct status *status, enum line_type type)
5061 struct view *view = VIEW(REQ_VIEW_STATUS);
5062 unsigned long lineno;
5064 for (lineno = 0; lineno < view->lines; lineno++) {
5065 struct line *line = &view->line[lineno];
5066 struct status *pos = line->data;
5068 if (line->type != type)
5070 if (!pos && (!status || !status->status) && line[1].data) {
5071 select_view_line(view, lineno);
5074 if (pos && !strcmp(status->new.name, pos->new.name)) {
5075 select_view_line(view, lineno);
5085 status_update_prepare(struct io *io, enum line_type type)
5087 const char *staged_argv[] = {
5088 "git", "update-index", "-z", "--index-info", NULL
5090 const char *others_argv[] = {
5091 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
5095 case LINE_STAT_STAGED:
5096 return run_io(io, staged_argv, opt_cdup, IO_WR);
5098 case LINE_STAT_UNSTAGED:
5099 return run_io(io, others_argv, opt_cdup, IO_WR);
5101 case LINE_STAT_UNTRACKED:
5102 return run_io(io, others_argv, NULL, IO_WR);
5105 die("line type %d not handled in switch", type);
5111 status_update_write(struct io *io, struct status *status, enum line_type type)
5113 char buf[SIZEOF_STR];
5117 case LINE_STAT_STAGED:
5118 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
5121 status->old.name, 0))
5125 case LINE_STAT_UNSTAGED:
5126 case LINE_STAT_UNTRACKED:
5127 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
5132 die("line type %d not handled in switch", type);
5135 return io_write(io, buf, bufsize);
5139 status_update_file(struct status *status, enum line_type type)
5144 if (!status_update_prepare(&io, type))
5147 result = status_update_write(&io, status, type);
5148 return done_io(&io) && result;
5152 status_update_files(struct view *view, struct line *line)
5154 char buf[sizeof(view->ref)];
5157 struct line *pos = view->line + view->lines;
5160 int cursor_y, cursor_x;
5162 if (!status_update_prepare(&io, line->type))
5165 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5168 string_copy(buf, view->ref);
5169 getsyx(cursor_y, cursor_x);
5170 for (file = 0, done = 5; result && file < files; line++, file++) {
5171 int almost_done = file * 100 / files;
5173 if (almost_done > done) {
5175 string_format(view->ref, "updating file %u of %u (%d%% done)",
5177 update_view_title(view);
5178 setsyx(cursor_y, cursor_x);
5181 result = status_update_write(&io, line->data, line->type);
5183 string_copy(view->ref, buf);
5185 return done_io(&io) && result;
5189 status_update(struct view *view)
5191 struct line *line = &view->line[view->lineno];
5193 assert(view->lines);
5196 /* This should work even for the "On branch" line. */
5197 if (line < view->line + view->lines && !line[1].data) {
5198 report("Nothing to update");
5202 if (!status_update_files(view, line + 1)) {
5203 report("Failed to update file status");
5207 } else if (!status_update_file(line->data, line->type)) {
5208 report("Failed to update file status");
5216 status_revert(struct status *status, enum line_type type, bool has_none)
5218 if (!status || type != LINE_STAT_UNSTAGED) {
5219 if (type == LINE_STAT_STAGED) {
5220 report("Cannot revert changes to staged files");
5221 } else if (type == LINE_STAT_UNTRACKED) {
5222 report("Cannot revert changes to untracked files");
5223 } else if (has_none) {
5224 report("Nothing to revert");
5226 report("Cannot revert changes to multiple files");
5231 char mode[10] = "100644";
5232 const char *reset_argv[] = {
5233 "git", "update-index", "--cacheinfo", mode,
5234 status->old.rev, status->old.name, NULL
5236 const char *checkout_argv[] = {
5237 "git", "checkout", "--", status->old.name, NULL
5240 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5242 string_format(mode, "%o", status->old.mode);
5243 return (status->status != 'U' || run_io_fg(reset_argv, opt_cdup)) &&
5244 run_io_fg(checkout_argv, opt_cdup);
5249 status_request(struct view *view, enum request request, struct line *line)
5251 struct status *status = line->data;
5254 case REQ_STATUS_UPDATE:
5255 if (!status_update(view))
5259 case REQ_STATUS_REVERT:
5260 if (!status_revert(status, line->type, status_has_none(view, line)))
5264 case REQ_STATUS_MERGE:
5265 if (!status || status->status != 'U') {
5266 report("Merging only possible for files with unmerged status ('U').");
5269 open_mergetool(status->new.name);
5275 if (status->status == 'D') {
5276 report("File has been deleted.");
5280 open_editor(status->status != '?', status->new.name);
5283 case REQ_VIEW_BLAME:
5285 string_copy(opt_file, status->new.name);
5291 /* After returning the status view has been split to
5292 * show the stage view. No further reloading is
5294 return status_enter(view, line);
5297 /* Simply reload the view. */
5304 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5310 status_select(struct view *view, struct line *line)
5312 struct status *status = line->data;
5313 char file[SIZEOF_STR] = "all files";
5317 if (status && !string_format(file, "'%s'", status->new.name))
5320 if (!status && line[1].type == LINE_STAT_NONE)
5323 switch (line->type) {
5324 case LINE_STAT_STAGED:
5325 text = "Press %s to unstage %s for commit";
5328 case LINE_STAT_UNSTAGED:
5329 text = "Press %s to stage %s for commit";
5332 case LINE_STAT_UNTRACKED:
5333 text = "Press %s to stage %s for addition";
5336 case LINE_STAT_HEAD:
5337 case LINE_STAT_NONE:
5338 text = "Nothing to update";
5342 die("line type %d not handled in switch", line->type);
5345 if (status && status->status == 'U') {
5346 text = "Press %s to resolve conflict in %s";
5347 key = get_key(REQ_STATUS_MERGE);
5350 key = get_key(REQ_STATUS_UPDATE);
5353 string_format(view->ref, text, key, file);
5357 status_grep(struct view *view, struct line *line)
5359 struct status *status = line->data;
5360 enum { S_STATUS, S_NAME, S_END } state;
5367 for (state = S_STATUS; state < S_END; state++) {
5371 case S_NAME: text = status->new.name; break;
5373 buf[0] = status->status;
5381 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5388 static struct view_ops status_ops = {
5401 stage_diff_write(struct io *io, struct line *line, struct line *end)
5403 while (line < end) {
5404 if (!io_write(io, line->data, strlen(line->data)) ||
5405 !io_write(io, "\n", 1))
5408 if (line->type == LINE_DIFF_CHUNK ||
5409 line->type == LINE_DIFF_HEADER)
5416 static struct line *
5417 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5419 for (; view->line < line; line--)
5420 if (line->type == type)
5427 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5429 const char *apply_argv[SIZEOF_ARG] = {
5430 "git", "apply", "--whitespace=nowarn", NULL
5432 struct line *diff_hdr;
5436 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5441 apply_argv[argc++] = "--cached";
5442 if (revert || stage_line_type == LINE_STAT_STAGED)
5443 apply_argv[argc++] = "-R";
5444 apply_argv[argc++] = "-";
5445 apply_argv[argc++] = NULL;
5446 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5449 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5450 !stage_diff_write(&io, chunk, view->line + view->lines))
5454 run_io_bg(update_index_argv);
5456 return chunk ? TRUE : FALSE;
5460 stage_update(struct view *view, struct line *line)
5462 struct line *chunk = NULL;
5464 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5465 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5468 if (!stage_apply_chunk(view, chunk, FALSE)) {
5469 report("Failed to apply chunk");
5473 } else if (!stage_status.status) {
5474 view = VIEW(REQ_VIEW_STATUS);
5476 for (line = view->line; line < view->line + view->lines; line++)
5477 if (line->type == stage_line_type)
5480 if (!status_update_files(view, line + 1)) {
5481 report("Failed to update files");
5485 } else if (!status_update_file(&stage_status, stage_line_type)) {
5486 report("Failed to update file");
5494 stage_revert(struct view *view, struct line *line)
5496 struct line *chunk = NULL;
5498 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5499 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5502 if (!prompt_yesno("Are you sure you want to revert changes?"))
5505 if (!stage_apply_chunk(view, chunk, TRUE)) {
5506 report("Failed to revert chunk");
5512 return status_revert(stage_status.status ? &stage_status : NULL,
5513 stage_line_type, FALSE);
5519 stage_next(struct view *view, struct line *line)
5523 if (!stage_chunks) {
5524 static size_t alloc = 0;
5527 for (line = view->line; line < view->line + view->lines; line++) {
5528 if (line->type != LINE_DIFF_CHUNK)
5531 tmp = realloc_items(stage_chunk, &alloc,
5532 stage_chunks, sizeof(*tmp));
5534 report("Allocation failure");
5539 stage_chunk[stage_chunks++] = line - view->line;
5543 for (i = 0; i < stage_chunks; i++) {
5544 if (stage_chunk[i] > view->lineno) {
5545 do_scroll_view(view, stage_chunk[i] - view->lineno);
5546 report("Chunk %d of %d", i + 1, stage_chunks);
5551 report("No next chunk found");
5555 stage_request(struct view *view, enum request request, struct line *line)
5558 case REQ_STATUS_UPDATE:
5559 if (!stage_update(view, line))
5563 case REQ_STATUS_REVERT:
5564 if (!stage_revert(view, line))
5568 case REQ_STAGE_NEXT:
5569 if (stage_line_type == LINE_STAT_UNTRACKED) {
5570 report("File is untracked; press %s to add",
5571 get_key(REQ_STATUS_UPDATE));
5574 stage_next(view, line);
5578 if (!stage_status.new.name[0])
5580 if (stage_status.status == 'D') {
5581 report("File has been deleted.");
5585 open_editor(stage_status.status != '?', stage_status.new.name);
5589 /* Reload everything ... */
5592 case REQ_VIEW_BLAME:
5593 if (stage_status.new.name[0]) {
5594 string_copy(opt_file, stage_status.new.name);
5600 return pager_request(view, request, line);
5606 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5607 open_view(view, REQ_VIEW_STATUS, OPEN_REFRESH);
5609 /* Check whether the staged entry still exists, and close the
5610 * stage view if it doesn't. */
5611 if (!status_exists(&stage_status, stage_line_type)) {
5612 status_restore(VIEW(REQ_VIEW_STATUS));
5613 return REQ_VIEW_CLOSE;
5616 if (stage_line_type == LINE_STAT_UNTRACKED) {
5617 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5618 report("Cannot display a directory");
5622 if (!prepare_update_file(view, stage_status.new.name)) {
5623 report("Failed to open file: %s", strerror(errno));
5627 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5632 static struct view_ops stage_ops = {
5649 char id[SIZEOF_REV]; /* SHA1 ID. */
5650 char title[128]; /* First line of the commit message. */
5651 const char *author; /* Author of the commit. */
5652 time_t time; /* Date from the author ident. */
5653 struct ref **refs; /* Repository references. */
5654 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5655 size_t graph_size; /* The width of the graph array. */
5656 bool has_parents; /* Rewritten --parents seen. */
5659 /* Size of rev graph with no "padding" columns */
5660 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5663 struct rev_graph *prev, *next, *parents;
5664 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5666 struct commit *commit;
5668 unsigned int boundary:1;
5671 /* Parents of the commit being visualized. */
5672 static struct rev_graph graph_parents[4];
5674 /* The current stack of revisions on the graph. */
5675 static struct rev_graph graph_stacks[4] = {
5676 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5677 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5678 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5679 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5683 graph_parent_is_merge(struct rev_graph *graph)
5685 return graph->parents->size > 1;
5689 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5691 struct commit *commit = graph->commit;
5693 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5694 commit->graph[commit->graph_size++] = symbol;
5698 clear_rev_graph(struct rev_graph *graph)
5700 graph->boundary = 0;
5701 graph->size = graph->pos = 0;
5702 graph->commit = NULL;
5703 memset(graph->parents, 0, sizeof(*graph->parents));
5707 done_rev_graph(struct rev_graph *graph)
5709 if (graph_parent_is_merge(graph) &&
5710 graph->pos < graph->size - 1 &&
5711 graph->next->size == graph->size + graph->parents->size - 1) {
5712 size_t i = graph->pos + graph->parents->size - 1;
5714 graph->commit->graph_size = i * 2;
5715 while (i < graph->next->size - 1) {
5716 append_to_rev_graph(graph, ' ');
5717 append_to_rev_graph(graph, '\\');
5722 clear_rev_graph(graph);
5726 push_rev_graph(struct rev_graph *graph, const char *parent)
5730 /* "Collapse" duplicate parents lines.
5732 * FIXME: This needs to also update update the drawn graph but
5733 * for now it just serves as a method for pruning graph lines. */
5734 for (i = 0; i < graph->size; i++)
5735 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5738 if (graph->size < SIZEOF_REVITEMS) {
5739 string_copy_rev(graph->rev[graph->size++], parent);
5744 get_rev_graph_symbol(struct rev_graph *graph)
5748 if (graph->boundary)
5749 symbol = REVGRAPH_BOUND;
5750 else if (graph->parents->size == 0)
5751 symbol = REVGRAPH_INIT;
5752 else if (graph_parent_is_merge(graph))
5753 symbol = REVGRAPH_MERGE;
5754 else if (graph->pos >= graph->size)
5755 symbol = REVGRAPH_BRANCH;
5757 symbol = REVGRAPH_COMMIT;
5763 draw_rev_graph(struct rev_graph *graph)
5766 chtype separator, line;
5768 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5769 static struct rev_filler fillers[] = {
5775 chtype symbol = get_rev_graph_symbol(graph);
5776 struct rev_filler *filler;
5779 if (opt_line_graphics)
5780 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5782 filler = &fillers[DEFAULT];
5784 for (i = 0; i < graph->pos; i++) {
5785 append_to_rev_graph(graph, filler->line);
5786 if (graph_parent_is_merge(graph->prev) &&
5787 graph->prev->pos == i)
5788 filler = &fillers[RSHARP];
5790 append_to_rev_graph(graph, filler->separator);
5793 /* Place the symbol for this revision. */
5794 append_to_rev_graph(graph, symbol);
5796 if (graph->prev->size > graph->size)
5797 filler = &fillers[RDIAG];
5799 filler = &fillers[DEFAULT];
5803 for (; i < graph->size; i++) {
5804 append_to_rev_graph(graph, filler->separator);
5805 append_to_rev_graph(graph, filler->line);
5806 if (graph_parent_is_merge(graph->prev) &&
5807 i < graph->prev->pos + graph->parents->size)
5808 filler = &fillers[RSHARP];
5809 if (graph->prev->size > graph->size)
5810 filler = &fillers[LDIAG];
5813 if (graph->prev->size > graph->size) {
5814 append_to_rev_graph(graph, filler->separator);
5815 if (filler->line != ' ')
5816 append_to_rev_graph(graph, filler->line);
5820 /* Prepare the next rev graph */
5822 prepare_rev_graph(struct rev_graph *graph)
5826 /* First, traverse all lines of revisions up to the active one. */
5827 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5828 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5831 push_rev_graph(graph->next, graph->rev[graph->pos]);
5834 /* Interleave the new revision parent(s). */
5835 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5836 push_rev_graph(graph->next, graph->parents->rev[i]);
5838 /* Lastly, put any remaining revisions. */
5839 for (i = graph->pos + 1; i < graph->size; i++)
5840 push_rev_graph(graph->next, graph->rev[i]);
5844 update_rev_graph(struct view *view, struct rev_graph *graph)
5846 /* If this is the finalizing update ... */
5848 prepare_rev_graph(graph);
5850 /* Graph visualization needs a one rev look-ahead,
5851 * so the first update doesn't visualize anything. */
5852 if (!graph->prev->commit)
5855 if (view->lines > 2)
5856 view->line[view->lines - 3].dirty = 1;
5857 if (view->lines > 1)
5858 view->line[view->lines - 2].dirty = 1;
5859 draw_rev_graph(graph->prev);
5860 done_rev_graph(graph->prev->prev);
5868 static const char *main_argv[SIZEOF_ARG] = {
5869 "git", "log", "--no-color", "--pretty=raw", "--parents",
5870 "--topo-order", "%(head)", NULL
5874 main_draw(struct view *view, struct line *line, unsigned int lineno)
5876 struct commit *commit = line->data;
5878 if (!commit->author)
5881 if (opt_date && draw_date(view, &commit->time))
5884 if (opt_author && draw_author(view, commit->author))
5887 if (opt_rev_graph && commit->graph_size &&
5888 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5891 if (opt_show_refs && commit->refs) {
5895 enum line_type type;
5897 if (commit->refs[i]->head)
5898 type = LINE_MAIN_HEAD;
5899 else if (commit->refs[i]->ltag)
5900 type = LINE_MAIN_LOCAL_TAG;
5901 else if (commit->refs[i]->tag)
5902 type = LINE_MAIN_TAG;
5903 else if (commit->refs[i]->tracked)
5904 type = LINE_MAIN_TRACKED;
5905 else if (commit->refs[i]->remote)
5906 type = LINE_MAIN_REMOTE;
5908 type = LINE_MAIN_REF;
5910 if (draw_text(view, type, "[", TRUE) ||
5911 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5912 draw_text(view, type, "]", TRUE))
5915 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5917 } while (commit->refs[i++]->next);
5920 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5924 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5926 main_read(struct view *view, char *line)
5928 static struct rev_graph *graph = graph_stacks;
5929 enum line_type type;
5930 struct commit *commit;
5935 if (!view->lines && !view->parent)
5936 die("No revisions match the given arguments.");
5937 if (view->lines > 0) {
5938 commit = view->line[view->lines - 1].data;
5939 view->line[view->lines - 1].dirty = 1;
5940 if (!commit->author) {
5943 graph->commit = NULL;
5946 update_rev_graph(view, graph);
5948 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5949 clear_rev_graph(&graph_stacks[i]);
5953 type = get_line_type(line);
5954 if (type == LINE_COMMIT) {
5955 commit = calloc(1, sizeof(struct commit));
5959 line += STRING_SIZE("commit ");
5961 graph->boundary = 1;
5965 string_copy_rev(commit->id, line);
5966 commit->refs = get_refs(commit->id);
5967 graph->commit = commit;
5968 add_line_data(view, commit, LINE_MAIN_COMMIT);
5970 while ((line = strchr(line, ' '))) {
5972 push_rev_graph(graph->parents, line);
5973 commit->has_parents = TRUE;
5980 commit = view->line[view->lines - 1].data;
5984 if (commit->has_parents)
5986 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5990 parse_author_line(line + STRING_SIZE("author "),
5991 &commit->author, &commit->time);
5992 update_rev_graph(view, graph);
5993 graph = graph->next;
5997 /* Fill in the commit title if it has not already been set. */
5998 if (commit->title[0])
6001 /* Require titles to start with a non-space character at the
6002 * offset used by git log. */
6003 if (strncmp(line, " ", 4))
6006 /* Well, if the title starts with a whitespace character,
6007 * try to be forgiving. Otherwise we end up with no title. */
6008 while (isspace(*line))
6012 /* FIXME: More graceful handling of titles; append "..." to
6013 * shortened titles, etc. */
6015 string_expand(commit->title, sizeof(commit->title), line, 1);
6016 view->line[view->lines - 1].dirty = 1;
6023 main_request(struct view *view, enum request request, struct line *line)
6025 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
6029 open_view(view, REQ_VIEW_DIFF, flags);
6033 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
6043 grep_refs(struct ref **refs, regex_t *regex)
6051 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
6053 } while (refs[i++]->next);
6059 main_grep(struct view *view, struct line *line)
6061 struct commit *commit = line->data;
6062 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
6065 for (state = S_TITLE; state < S_END; state++) {
6069 case S_TITLE: text = commit->title; break;
6073 text = commit->author;
6078 text = mkdate(&commit->time);
6085 if (grep_refs(commit->refs, view->regex) == TRUE)
6092 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
6100 main_select(struct view *view, struct line *line)
6102 struct commit *commit = line->data;
6104 string_copy_rev(view->ref, commit->id);
6105 string_copy_rev(ref_commit, view->ref);
6108 static struct view_ops main_ops = {
6121 * Unicode / UTF-8 handling
6123 * NOTE: Much of the following code for dealing with Unicode is derived from
6124 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
6125 * src/intl/charset.c from the UTF-8 branch commit elinks-0.11.0-g31f2c28.
6129 unicode_width(unsigned long c)
6132 (c <= 0x115f /* Hangul Jamo */
6135 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
6137 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
6138 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
6139 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
6140 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
6141 || (c >= 0xffe0 && c <= 0xffe6)
6142 || (c >= 0x20000 && c <= 0x2fffd)
6143 || (c >= 0x30000 && c <= 0x3fffd)))
6147 return opt_tab_size;
6152 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
6153 * Illegal bytes are set one. */
6154 static const unsigned char utf8_bytes[256] = {
6155 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,
6156 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,
6157 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,
6158 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,
6159 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,
6160 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,
6161 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,
6162 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,
6165 /* Decode UTF-8 multi-byte representation into a Unicode character. */
6166 static inline unsigned long
6167 utf8_to_unicode(const char *string, size_t length)
6169 unsigned long unicode;
6173 unicode = string[0];
6176 unicode = (string[0] & 0x1f) << 6;
6177 unicode += (string[1] & 0x3f);
6180 unicode = (string[0] & 0x0f) << 12;
6181 unicode += ((string[1] & 0x3f) << 6);
6182 unicode += (string[2] & 0x3f);
6185 unicode = (string[0] & 0x0f) << 18;
6186 unicode += ((string[1] & 0x3f) << 12);
6187 unicode += ((string[2] & 0x3f) << 6);
6188 unicode += (string[3] & 0x3f);
6191 unicode = (string[0] & 0x0f) << 24;
6192 unicode += ((string[1] & 0x3f) << 18);
6193 unicode += ((string[2] & 0x3f) << 12);
6194 unicode += ((string[3] & 0x3f) << 6);
6195 unicode += (string[4] & 0x3f);
6198 unicode = (string[0] & 0x01) << 30;
6199 unicode += ((string[1] & 0x3f) << 24);
6200 unicode += ((string[2] & 0x3f) << 18);
6201 unicode += ((string[3] & 0x3f) << 12);
6202 unicode += ((string[4] & 0x3f) << 6);
6203 unicode += (string[5] & 0x3f);
6206 die("Invalid Unicode length");
6209 /* Invalid characters could return the special 0xfffd value but NUL
6210 * should be just as good. */
6211 return unicode > 0xffff ? 0 : unicode;
6214 /* Calculates how much of string can be shown within the given maximum width
6215 * and sets trimmed parameter to non-zero value if all of string could not be
6216 * shown. If the reserve flag is TRUE, it will reserve at least one
6217 * trailing character, which can be useful when drawing a delimiter.
6219 * Returns the number of bytes to output from string to satisfy max_width. */
6221 utf8_length(const char **start, size_t skip, int *width, size_t max_width, int *trimmed, bool reserve)
6223 const char *string = *start;
6224 const char *end = strchr(string, '\0');
6225 unsigned char last_bytes = 0;
6226 size_t last_ucwidth = 0;
6231 while (string < end) {
6232 int c = *(unsigned char *) string;
6233 unsigned char bytes = utf8_bytes[c];
6235 unsigned long unicode;
6237 if (string + bytes > end)
6240 /* Change representation to figure out whether
6241 * it is a single- or double-width character. */
6243 unicode = utf8_to_unicode(string, bytes);
6244 /* FIXME: Graceful handling of invalid Unicode character. */
6248 ucwidth = unicode_width(unicode);
6250 skip -= ucwidth <= skip ? ucwidth : skip;
6254 if (*width > max_width) {
6257 if (reserve && *width == max_width) {
6258 string -= last_bytes;
6259 *width -= last_ucwidth;
6265 last_bytes = ucwidth ? bytes : 0;
6266 last_ucwidth = ucwidth;
6269 return string - *start;
6277 /* Whether or not the curses interface has been initialized. */
6278 static bool cursed = FALSE;
6280 /* Terminal hacks and workarounds. */
6281 static bool use_scroll_redrawwin;
6282 static bool use_scroll_status_wclear;
6284 /* The status window is used for polling keystrokes. */
6285 static WINDOW *status_win;
6287 /* Reading from the prompt? */
6288 static bool input_mode = FALSE;
6290 static bool status_empty = FALSE;
6292 /* Update status and title window. */
6294 report(const char *msg, ...)
6296 struct view *view = display[current_view];
6302 char buf[SIZEOF_STR];
6305 va_start(args, msg);
6306 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6307 buf[sizeof(buf) - 1] = 0;
6308 buf[sizeof(buf) - 2] = '.';
6309 buf[sizeof(buf) - 3] = '.';
6310 buf[sizeof(buf) - 4] = '.';
6316 if (!status_empty || *msg) {
6319 va_start(args, msg);
6321 wmove(status_win, 0, 0);
6322 if (view->has_scrolled && use_scroll_status_wclear)
6325 vwprintw(status_win, msg, args);
6326 status_empty = FALSE;
6328 status_empty = TRUE;
6330 wclrtoeol(status_win);
6331 wnoutrefresh(status_win);
6336 update_view_title(view);
6339 /* Controls when nodelay should be in effect when polling user input. */
6341 set_nonblocking_input(bool loading)
6343 static unsigned int loading_views;
6345 if ((loading == FALSE && loading_views-- == 1) ||
6346 (loading == TRUE && loading_views++ == 0))
6347 nodelay(status_win, loading);
6356 /* Initialize the curses library */
6357 if (isatty(STDIN_FILENO)) {
6358 cursed = !!initscr();
6361 /* Leave stdin and stdout alone when acting as a pager. */
6362 opt_tty = fopen("/dev/tty", "r+");
6364 die("Failed to open /dev/tty");
6365 cursed = !!newterm(NULL, opt_tty, opt_tty);
6369 die("Failed to initialize curses");
6371 nonl(); /* Disable conversion and detect newlines from input. */
6372 cbreak(); /* Take input chars one at a time, no wait for \n */
6373 noecho(); /* Don't echo input */
6374 leaveok(stdscr, FALSE);
6379 getmaxyx(stdscr, y, x);
6380 status_win = newwin(1, 0, y - 1, 0);
6382 die("Failed to create status window");
6384 /* Enable keyboard mapping */
6385 keypad(status_win, TRUE);
6386 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6388 TABSIZE = opt_tab_size;
6389 if (opt_line_graphics) {
6390 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6393 term = getenv("XTERM_VERSION") ? NULL : getenv("COLORTERM");
6394 if (term && !strcmp(term, "gnome-terminal")) {
6395 /* In the gnome-terminal-emulator, the message from
6396 * scrolling up one line when impossible followed by
6397 * scrolling down one line causes corruption of the
6398 * status line. This is fixed by calling wclear. */
6399 use_scroll_status_wclear = TRUE;
6400 use_scroll_redrawwin = FALSE;
6402 } else if (term && !strcmp(term, "xrvt-xpm")) {
6403 /* No problems with full optimizations in xrvt-(unicode)
6405 use_scroll_status_wclear = use_scroll_redrawwin = FALSE;
6408 /* When scrolling in (u)xterm the last line in the
6409 * scrolling direction will update slowly. */
6410 use_scroll_redrawwin = TRUE;
6411 use_scroll_status_wclear = FALSE;
6416 get_input(int prompt_position)
6419 int i, key, cursor_y, cursor_x;
6421 if (prompt_position)
6425 foreach_view (view, i) {
6427 if (view_is_displayed(view) && view->has_scrolled &&
6428 use_scroll_redrawwin)
6429 redrawwin(view->win);
6430 view->has_scrolled = FALSE;
6433 /* Update the cursor position. */
6434 if (prompt_position) {
6435 getbegyx(status_win, cursor_y, cursor_x);
6436 cursor_x = prompt_position;
6438 view = display[current_view];
6439 getbegyx(view->win, cursor_y, cursor_x);
6440 cursor_x = view->width - 1;
6441 cursor_y += view->lineno - view->offset;
6443 setsyx(cursor_y, cursor_x);
6445 /* Refresh, accept single keystroke of input */
6447 key = wgetch(status_win);
6449 /* wgetch() with nodelay() enabled returns ERR when
6450 * there's no input. */
6453 } else if (key == KEY_RESIZE) {
6456 getmaxyx(stdscr, height, width);
6458 wresize(status_win, 1, width);
6459 mvwin(status_win, height - 1, 0);
6460 wnoutrefresh(status_win);
6462 redraw_display(TRUE);
6472 prompt_input(const char *prompt, input_handler handler, void *data)
6474 enum input_status status = INPUT_OK;
6475 static char buf[SIZEOF_STR];
6480 while (status == INPUT_OK || status == INPUT_SKIP) {
6483 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6484 wclrtoeol(status_win);
6486 key = get_input(pos + 1);
6491 status = pos ? INPUT_STOP : INPUT_CANCEL;
6498 status = INPUT_CANCEL;
6502 status = INPUT_CANCEL;
6506 if (pos >= sizeof(buf)) {
6507 report("Input string too long");
6511 status = handler(data, buf, key);
6512 if (status == INPUT_OK)
6513 buf[pos++] = (char) key;
6517 /* Clear the status window */
6518 status_empty = FALSE;
6521 if (status == INPUT_CANCEL)
6529 static enum input_status
6530 prompt_yesno_handler(void *data, char *buf, int c)
6532 if (c == 'y' || c == 'Y')
6534 if (c == 'n' || c == 'N')
6535 return INPUT_CANCEL;
6540 prompt_yesno(const char *prompt)
6542 char prompt2[SIZEOF_STR];
6544 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6547 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6550 static enum input_status
6551 read_prompt_handler(void *data, char *buf, int c)
6553 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6557 read_prompt(const char *prompt)
6559 return prompt_input(prompt, read_prompt_handler, NULL);
6563 * Repository properties
6566 static struct ref *refs = NULL;
6567 static size_t refs_alloc = 0;
6568 static size_t refs_size = 0;
6570 /* Id <-> ref store */
6571 static struct ref ***id_refs = NULL;
6572 static size_t id_refs_alloc = 0;
6573 static size_t id_refs_size = 0;
6576 compare_refs(const void *ref1_, const void *ref2_)
6578 const struct ref *ref1 = *(const struct ref **)ref1_;
6579 const struct ref *ref2 = *(const struct ref **)ref2_;
6581 if (ref1->tag != ref2->tag)
6582 return ref2->tag - ref1->tag;
6583 if (ref1->ltag != ref2->ltag)
6584 return ref2->ltag - ref2->ltag;
6585 if (ref1->head != ref2->head)
6586 return ref2->head - ref1->head;
6587 if (ref1->tracked != ref2->tracked)
6588 return ref2->tracked - ref1->tracked;
6589 if (ref1->remote != ref2->remote)
6590 return ref2->remote - ref1->remote;
6591 return strcmp(ref1->name, ref2->name);
6594 static struct ref **
6595 get_refs(const char *id)
6597 struct ref ***tmp_id_refs;
6598 struct ref **ref_list = NULL;
6599 size_t ref_list_alloc = 0;
6600 size_t ref_list_size = 0;
6603 for (i = 0; i < id_refs_size; i++)
6604 if (!strcmp(id, id_refs[i][0]->id))
6607 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6612 id_refs = tmp_id_refs;
6614 for (i = 0; i < refs_size; i++) {
6617 if (strcmp(id, refs[i].id))
6620 tmp = realloc_items(ref_list, &ref_list_alloc,
6621 ref_list_size + 1, sizeof(*ref_list));
6629 ref_list[ref_list_size] = &refs[i];
6630 /* XXX: The properties of the commit chains ensures that we can
6631 * safely modify the shared ref. The repo references will
6632 * always be similar for the same id. */
6633 ref_list[ref_list_size]->next = 1;
6639 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6640 ref_list[ref_list_size - 1]->next = 0;
6641 id_refs[id_refs_size++] = ref_list;
6648 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6653 bool remote = FALSE;
6654 bool tracked = FALSE;
6655 bool check_replace = FALSE;
6658 if (!prefixcmp(name, "refs/tags/")) {
6659 if (!suffixcmp(name, namelen, "^{}")) {
6662 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6663 check_replace = TRUE;
6669 namelen -= STRING_SIZE("refs/tags/");
6670 name += STRING_SIZE("refs/tags/");
6672 } else if (!prefixcmp(name, "refs/remotes/")) {
6674 namelen -= STRING_SIZE("refs/remotes/");
6675 name += STRING_SIZE("refs/remotes/");
6676 tracked = !strcmp(opt_remote, name);
6678 } else if (!prefixcmp(name, "refs/heads/")) {
6679 namelen -= STRING_SIZE("refs/heads/");
6680 name += STRING_SIZE("refs/heads/");
6681 head = !strncmp(opt_head, name, namelen);
6683 } else if (!strcmp(name, "HEAD")) {
6684 string_ncopy(opt_head_rev, id, idlen);
6688 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6689 /* it's an annotated tag, replace the previous SHA1 with the
6690 * resolved commit id; relies on the fact git-ls-remote lists
6691 * the commit id of an annotated tag right before the commit id
6693 refs[refs_size - 1].ltag = ltag;
6694 string_copy_rev(refs[refs_size - 1].id, id);
6698 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6702 ref = &refs[refs_size++];
6703 ref->name = malloc(namelen + 1);
6707 strncpy(ref->name, name, namelen);
6708 ref->name[namelen] = 0;
6712 ref->remote = remote;
6713 ref->tracked = tracked;
6714 string_copy_rev(ref->id, id);
6722 static const char *ls_remote_argv[SIZEOF_ARG] = {
6723 "git", "ls-remote", opt_git_dir, NULL
6725 static bool init = FALSE;
6728 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6735 while (refs_size > 0)
6736 free(refs[--refs_size].name);
6737 while (id_refs_size > 0)
6738 free(id_refs[--id_refs_size]);
6740 return run_io_load(ls_remote_argv, "\t", read_ref);
6744 set_remote_branch(const char *name, const char *value, size_t valuelen)
6746 if (!strcmp(name, ".remote")) {
6747 string_ncopy(opt_remote, value, valuelen);
6749 } else if (*opt_remote && !strcmp(name, ".merge")) {
6750 size_t from = strlen(opt_remote);
6752 if (!prefixcmp(value, "refs/heads/"))
6753 value += STRING_SIZE("refs/heads/");
6755 if (!string_format_from(opt_remote, &from, "/%s", value))
6761 set_repo_config_option(char *name, char *value, int (*cmd)(int, const char **))
6763 const char *argv[SIZEOF_ARG] = { name, "=" };
6764 int argc = 1 + (cmd == option_set_command);
6767 if (!argv_from_string(argv, &argc, value))
6768 config_msg = "Too many option arguments";
6770 error = cmd(argc, argv);
6773 warn("Option 'tig.%s': %s", name, config_msg);
6777 set_environment_variable(const char *name, const char *value)
6779 size_t len = strlen(name) + 1 + strlen(value) + 1;
6780 char *env = malloc(len);
6783 string_nformat(env, len, NULL, "%s=%s", name, value) &&
6791 set_work_tree(const char *value)
6793 char cwd[SIZEOF_STR];
6795 if (!getcwd(cwd, sizeof(cwd)))
6796 die("Failed to get cwd path: %s", strerror(errno));
6797 if (chdir(opt_git_dir) < 0)
6798 die("Failed to chdir(%s): %s", strerror(errno));
6799 if (!getcwd(opt_git_dir, sizeof(opt_git_dir)))
6800 die("Failed to get git path: %s", strerror(errno));
6802 die("Failed to chdir(%s): %s", cwd, strerror(errno));
6803 if (chdir(value) < 0)
6804 die("Failed to chdir(%s): %s", value, strerror(errno));
6805 if (!getcwd(cwd, sizeof(cwd)))
6806 die("Failed to get cwd path: %s", strerror(errno));
6807 if (!set_environment_variable("GIT_WORK_TREE", cwd))
6808 die("Failed to set GIT_WORK_TREE to '%s'", cwd);
6809 if (!set_environment_variable("GIT_DIR", opt_git_dir))
6810 die("Failed to set GIT_DIR to '%s'", opt_git_dir);
6811 opt_is_inside_work_tree = TRUE;
6815 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6817 if (!strcmp(name, "i18n.commitencoding"))
6818 string_ncopy(opt_encoding, value, valuelen);
6820 else if (!strcmp(name, "core.editor"))
6821 string_ncopy(opt_editor, value, valuelen);
6823 else if (!strcmp(name, "core.worktree"))
6824 set_work_tree(value);
6826 else if (!prefixcmp(name, "tig.color."))
6827 set_repo_config_option(name + 10, value, option_color_command);
6829 else if (!prefixcmp(name, "tig.bind."))
6830 set_repo_config_option(name + 9, value, option_bind_command);
6832 else if (!prefixcmp(name, "tig."))
6833 set_repo_config_option(name + 4, value, option_set_command);
6835 else if (*opt_head && !prefixcmp(name, "branch.") &&
6836 !strncmp(name + 7, opt_head, strlen(opt_head)))
6837 set_remote_branch(name + 7 + strlen(opt_head), value, valuelen);
6843 load_git_config(void)
6845 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6847 return run_io_load(config_list_argv, "=", read_repo_config_option);
6851 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6853 if (!opt_git_dir[0]) {
6854 string_ncopy(opt_git_dir, name, namelen);
6856 } else if (opt_is_inside_work_tree == -1) {
6857 /* This can be 3 different values depending on the
6858 * version of git being used. If git-rev-parse does not
6859 * understand --is-inside-work-tree it will simply echo
6860 * the option else either "true" or "false" is printed.
6861 * Default to true for the unknown case. */
6862 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6864 } else if (*name == '.') {
6865 string_ncopy(opt_cdup, name, namelen);
6868 string_ncopy(opt_prefix, name, namelen);
6875 load_repo_info(void)
6877 const char *head_argv[] = {
6878 "git", "symbolic-ref", "HEAD", NULL
6880 const char *rev_parse_argv[] = {
6881 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6882 "--show-cdup", "--show-prefix", NULL
6885 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6886 chomp_string(opt_head);
6887 if (!prefixcmp(opt_head, "refs/heads/")) {
6888 char *offset = opt_head + STRING_SIZE("refs/heads/");
6890 memmove(opt_head, offset, strlen(offset) + 1);
6894 return run_io_load(rev_parse_argv, "=", read_repo_info);
6902 static const char usage[] =
6903 "tig " TIG_VERSION " (" __DATE__ ")\n"
6905 "Usage: tig [options] [revs] [--] [paths]\n"
6906 " or: tig show [options] [revs] [--] [paths]\n"
6907 " or: tig blame [rev] path\n"
6909 " or: tig < [git command output]\n"
6912 " -v, --version Show version and exit\n"
6913 " -h, --help Show help message and exit";
6915 static void __NORETURN
6918 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6924 static void __NORETURN
6925 die(const char *err, ...)
6931 va_start(args, err);
6932 fputs("tig: ", stderr);
6933 vfprintf(stderr, err, args);
6934 fputs("\n", stderr);
6941 warn(const char *msg, ...)
6945 va_start(args, msg);
6946 fputs("tig warning: ", stderr);
6947 vfprintf(stderr, msg, args);
6948 fputs("\n", stderr);
6953 parse_options(int argc, const char *argv[])
6955 enum request request = REQ_VIEW_MAIN;
6956 const char *subcommand;
6957 bool seen_dashdash = FALSE;
6958 /* XXX: This is vulnerable to the user overriding options
6959 * required for the main view parser. */
6960 const char *custom_argv[SIZEOF_ARG] = {
6961 "git", "log", "--no-color", "--pretty=raw", "--parents",
6962 "--topo-order", NULL
6966 if (!isatty(STDIN_FILENO)) {
6967 io_open(&VIEW(REQ_VIEW_PAGER)->io, "");
6968 return REQ_VIEW_PAGER;
6974 subcommand = argv[1];
6975 if (!strcmp(subcommand, "status")) {
6977 warn("ignoring arguments after `%s'", subcommand);
6978 return REQ_VIEW_STATUS;
6980 } else if (!strcmp(subcommand, "blame")) {
6981 if (argc <= 2 || argc > 4)
6982 die("invalid number of options to blame\n\n%s", usage);
6986 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
6990 string_ncopy(opt_file, argv[i], strlen(argv[i]));
6991 return REQ_VIEW_BLAME;
6993 } else if (!strcmp(subcommand, "show")) {
6994 request = REQ_VIEW_DIFF;
7001 custom_argv[1] = subcommand;
7005 for (i = 1 + !!subcommand; i < argc; i++) {
7006 const char *opt = argv[i];
7008 if (seen_dashdash || !strcmp(opt, "--")) {
7009 seen_dashdash = TRUE;
7011 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
7012 printf("tig version %s\n", TIG_VERSION);
7015 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
7016 printf("%s\n", usage);
7020 custom_argv[j++] = opt;
7021 if (j >= ARRAY_SIZE(custom_argv))
7022 die("command too long");
7025 if (!prepare_update(VIEW(request), custom_argv, NULL, FORMAT_NONE))
7026 die("Failed to format arguments");
7032 main(int argc, const char *argv[])
7034 enum request request = parse_options(argc, argv);
7038 signal(SIGINT, quit);
7039 signal(SIGPIPE, SIG_IGN);
7041 if (setlocale(LC_ALL, "")) {
7042 char *codeset = nl_langinfo(CODESET);
7044 string_ncopy(opt_codeset, codeset, strlen(codeset));
7047 if (load_repo_info() == ERR)
7048 die("Failed to load repo info.");
7050 if (load_options() == ERR)
7051 die("Failed to load user config.");
7053 if (load_git_config() == ERR)
7054 die("Failed to load repo config.");
7056 /* Require a git repository unless when running in pager mode. */
7057 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
7058 die("Not a git repository");
7060 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
7063 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
7064 opt_iconv = iconv_open(opt_codeset, opt_encoding);
7065 if (opt_iconv == ICONV_NONE)
7066 die("Failed to initialize character set conversion");
7069 if (load_refs() == ERR)
7070 die("Failed to load refs.");
7072 foreach_view (view, i)
7073 argv_from_env(view->ops->argv, view->cmd_env);
7077 if (request != REQ_NONE)
7078 open_view(NULL, request, OPEN_PREPARED);
7079 request = request == REQ_NONE ? REQ_VIEW_MAIN : REQ_NONE;
7081 while (view_driver(display[current_view], request)) {
7082 int key = get_input(0);
7084 view = display[current_view];
7085 request = get_keybinding(view->keymap, key);
7087 /* Some low-level request handling. This keeps access to
7088 * status_win restricted. */
7092 char *cmd = read_prompt(":");
7094 if (cmd && isdigit(*cmd)) {
7095 int lineno = view->lineno + 1;
7097 if (parse_int(&lineno, cmd, 1, view->lines + 1) == OK) {
7098 select_view_line(view, lineno - 1);
7101 report("Unable to parse '%s' as a line number", cmd);
7105 struct view *next = VIEW(REQ_VIEW_PAGER);
7106 const char *argv[SIZEOF_ARG] = { "git" };
7109 /* When running random commands, initially show the
7110 * command in the title. However, it maybe later be
7111 * overwritten if a commit line is selected. */
7112 string_ncopy(next->ref, cmd, strlen(cmd));
7114 if (!argv_from_string(argv, &argc, cmd)) {
7115 report("Too many arguments");
7116 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
7117 report("Failed to format command");
7119 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
7127 case REQ_SEARCH_BACK:
7129 const char *prompt = request == REQ_SEARCH ? "/" : "?";
7130 char *search = read_prompt(prompt);
7133 string_ncopy(opt_search, search, strlen(search));
7134 else if (*opt_search)
7135 request = request == REQ_SEARCH ?