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 grep_text(struct view *view, const char *text[])
2511 for (i = 0; text[i]; i++)
2513 regexec(view->regex, text[i], 1, &pmatch, 0) != REG_NOMATCH)
2519 select_view_line(struct view *view, unsigned long lineno)
2521 unsigned long old_lineno = view->lineno;
2522 unsigned long old_offset = view->offset;
2524 if (goto_view_line(view, view->offset, lineno)) {
2525 if (view_is_displayed(view)) {
2526 if (old_offset != view->offset) {
2529 draw_view_line(view, old_lineno - view->offset);
2530 draw_view_line(view, view->lineno - view->offset);
2531 wnoutrefresh(view->win);
2534 view->ops->select(view, &view->line[view->lineno]);
2540 find_next(struct view *view, enum request request)
2542 unsigned long lineno = view->lineno;
2547 report("No previous search");
2549 search_view(view, request);
2559 case REQ_SEARCH_BACK:
2568 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2569 lineno += direction;
2571 /* Note, lineno is unsigned long so will wrap around in which case it
2572 * will become bigger than view->lines. */
2573 for (; lineno < view->lines; lineno += direction) {
2574 if (view->ops->grep(view, &view->line[lineno])) {
2575 select_view_line(view, lineno);
2576 report("Line %ld matches '%s'", lineno + 1, view->grep);
2581 report("No match found for '%s'", view->grep);
2585 search_view(struct view *view, enum request request)
2590 regfree(view->regex);
2593 view->regex = calloc(1, sizeof(*view->regex));
2598 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2599 if (regex_err != 0) {
2600 char buf[SIZEOF_STR] = "unknown error";
2602 regerror(regex_err, view->regex, buf, sizeof(buf));
2603 report("Search failed: %s", buf);
2607 string_copy(view->grep, opt_search);
2609 find_next(view, request);
2613 * Incremental updating
2617 reset_view(struct view *view)
2621 for (i = 0; i < view->lines; i++)
2622 free(view->line[i].data);
2625 view->p_offset = view->offset;
2626 view->p_yoffset = view->yoffset;
2627 view->p_lineno = view->lineno;
2634 view->line_alloc = 0;
2636 view->update_secs = 0;
2640 free_argv(const char *argv[])
2644 for (argc = 0; argv[argc]; argc++)
2645 free((void *) argv[argc]);
2649 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2651 char buf[SIZEOF_STR];
2653 bool noreplace = flags == FORMAT_NONE;
2655 free_argv(dst_argv);
2657 for (argc = 0; src_argv[argc]; argc++) {
2658 const char *arg = src_argv[argc];
2662 char *next = strstr(arg, "%(");
2663 int len = next - arg;
2666 if (!next || noreplace) {
2667 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2672 } else if (!prefixcmp(next, "%(directory)")) {
2675 } else if (!prefixcmp(next, "%(file)")) {
2678 } else if (!prefixcmp(next, "%(ref)")) {
2679 value = *opt_ref ? opt_ref : "HEAD";
2681 } else if (!prefixcmp(next, "%(head)")) {
2684 } else if (!prefixcmp(next, "%(commit)")) {
2687 } else if (!prefixcmp(next, "%(blob)")) {
2691 report("Unknown replacement: `%s`", next);
2695 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2698 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2701 dst_argv[argc] = strdup(buf);
2702 if (!dst_argv[argc])
2706 dst_argv[argc] = NULL;
2708 return src_argv[argc] == NULL;
2712 restore_view_position(struct view *view)
2714 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2717 /* Changing the view position cancels the restoring. */
2718 /* FIXME: Changing back to the first line is not detected. */
2719 if (view->offset != 0 || view->lineno != 0) {
2720 view->p_restore = FALSE;
2724 if (goto_view_line(view, view->p_offset, view->p_lineno) &&
2725 view_is_displayed(view))
2728 view->yoffset = view->p_yoffset;
2729 view->p_restore = FALSE;
2735 end_update(struct view *view, bool force)
2739 while (!view->ops->read(view, NULL))
2742 set_nonblocking_input(FALSE);
2744 kill_io(view->pipe);
2745 done_io(view->pipe);
2750 setup_update(struct view *view, const char *vid)
2752 set_nonblocking_input(TRUE);
2754 string_copy_rev(view->vid, vid);
2755 view->pipe = &view->io;
2756 view->start_time = time(NULL);
2760 prepare_update(struct view *view, const char *argv[], const char *dir,
2761 enum format_flags flags)
2764 end_update(view, TRUE);
2765 return init_io_rd(&view->io, argv, dir, flags);
2769 prepare_update_file(struct view *view, const char *name)
2772 end_update(view, TRUE);
2773 return io_open(&view->io, name);
2777 begin_update(struct view *view, bool refresh)
2780 end_update(view, TRUE);
2783 if (!start_io(&view->io))
2787 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2790 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2793 /* Put the current ref_* value to the view title ref
2794 * member. This is needed by the blob view. Most other
2795 * views sets it automatically after loading because the
2796 * first line is a commit line. */
2797 string_copy_rev(view->ref, view->id);
2800 setup_update(view, view->id);
2805 #define ITEM_CHUNK_SIZE 256
2807 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2809 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2810 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2812 if (mem == NULL || num_chunks != num_chunks_new) {
2813 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2814 mem = realloc(mem, *size * item_size);
2820 static struct line *
2821 realloc_lines(struct view *view, size_t line_size)
2823 size_t alloc = view->line_alloc;
2824 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2825 sizeof(*view->line));
2831 view->line_alloc = alloc;
2836 update_view(struct view *view)
2838 char out_buffer[BUFSIZ * 2];
2840 /* Clear the view and redraw everything since the tree sorting
2841 * might have rearranged things. */
2842 bool redraw = view->lines == 0;
2843 bool can_read = TRUE;
2848 if (!io_can_read(view->pipe)) {
2849 if (view->lines == 0 && view_is_displayed(view)) {
2850 time_t secs = time(NULL) - view->start_time;
2852 if (secs > 1 && secs > view->update_secs) {
2853 if (view->update_secs == 0)
2855 update_view_title(view);
2856 view->update_secs = secs;
2862 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2863 if (opt_iconv != ICONV_NONE) {
2864 ICONV_CONST char *inbuf = line;
2865 size_t inlen = strlen(line) + 1;
2867 char *outbuf = out_buffer;
2868 size_t outlen = sizeof(out_buffer);
2872 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2873 if (ret != (size_t) -1)
2877 if (!view->ops->read(view, line)) {
2878 report("Allocation failure");
2879 end_update(view, TRUE);
2885 unsigned long lines = view->lines;
2888 for (digits = 0; lines; digits++)
2891 /* Keep the displayed view in sync with line number scaling. */
2892 if (digits != view->digits) {
2893 view->digits = digits;
2894 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2899 if (io_error(view->pipe)) {
2900 report("Failed to read: %s", io_strerror(view->pipe));
2901 end_update(view, TRUE);
2903 } else if (io_eof(view->pipe)) {
2905 end_update(view, FALSE);
2908 if (restore_view_position(view))
2911 if (!view_is_displayed(view))
2915 redraw_view_from(view, 0);
2917 redraw_view_dirty(view);
2919 /* Update the title _after_ the redraw so that if the redraw picks up a
2920 * commit reference in view->ref it'll be available here. */
2921 update_view_title(view);
2925 static struct line *
2926 add_line_data(struct view *view, void *data, enum line_type type)
2930 if (!realloc_lines(view, view->lines + 1))
2933 line = &view->line[view->lines++];
2934 memset(line, 0, sizeof(*line));
2942 static struct line *
2943 add_line_text(struct view *view, const char *text, enum line_type type)
2945 char *data = text ? strdup(text) : NULL;
2947 return data ? add_line_data(view, data, type) : NULL;
2950 static struct line *
2951 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2953 char buf[SIZEOF_STR];
2956 va_start(args, fmt);
2957 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2961 return buf[0] ? add_line_text(view, buf, type) : NULL;
2969 OPEN_DEFAULT = 0, /* Use default view switching. */
2970 OPEN_SPLIT = 1, /* Split current view. */
2971 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2972 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2973 OPEN_PREPARED = 32, /* Open already prepared command. */
2977 open_view(struct view *prev, enum request request, enum open_flags flags)
2979 bool split = !!(flags & OPEN_SPLIT);
2980 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2981 bool nomaximize = !!(flags & OPEN_REFRESH);
2982 struct view *view = VIEW(request);
2983 int nviews = displayed_views();
2984 struct view *base_view = display[0];
2986 if (view == prev && nviews == 1 && !reload) {
2987 report("Already in %s view", view->name);
2991 if (view->git_dir && !opt_git_dir[0]) {
2992 report("The %s view is disabled in pager view", view->name);
2999 } else if (!nomaximize) {
3000 /* Maximize the current view. */
3001 memset(display, 0, sizeof(display));
3003 display[current_view] = view;
3006 /* Resize the view when switching between split- and full-screen,
3007 * or when switching between two different full-screen views. */
3008 if (nviews != displayed_views() ||
3009 (nviews == 1 && base_view != display[0]))
3012 if (view->ops->open) {
3014 end_update(view, TRUE);
3015 if (!view->ops->open(view)) {
3016 report("Failed to load %s view", view->name);
3019 restore_view_position(view);
3021 } else if ((reload || strcmp(view->vid, view->id)) &&
3022 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
3023 report("Failed to load %s view", view->name);
3027 if (split && prev->lineno - prev->offset >= prev->height) {
3028 /* Take the title line into account. */
3029 int lines = prev->lineno - prev->offset - prev->height + 1;
3031 /* Scroll the view that was split if the current line is
3032 * outside the new limited view. */
3033 do_scroll_view(prev, lines);
3036 if (prev && view != prev) {
3038 /* "Blur" the previous view. */
3039 update_view_title(prev);
3042 view->parent = prev;
3045 if (view->pipe && view->lines == 0) {
3046 /* Clear the old view and let the incremental updating refill
3049 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
3051 } else if (view_is_displayed(view)) {
3058 open_external_viewer(const char *argv[], const char *dir)
3060 def_prog_mode(); /* save current tty modes */
3061 endwin(); /* restore original tty modes */
3062 run_io_fg(argv, dir);
3063 fprintf(stderr, "Press Enter to continue");
3066 redraw_display(TRUE);
3070 open_mergetool(const char *file)
3072 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
3074 open_external_viewer(mergetool_argv, opt_cdup);
3078 open_editor(bool from_root, const char *file)
3080 const char *editor_argv[] = { "vi", file, NULL };
3083 editor = getenv("GIT_EDITOR");
3084 if (!editor && *opt_editor)
3085 editor = opt_editor;
3087 editor = getenv("VISUAL");
3089 editor = getenv("EDITOR");
3093 editor_argv[0] = editor;
3094 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3098 open_run_request(enum request request)
3100 struct run_request *req = get_run_request(request);
3101 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3104 report("Unknown run request");
3108 if (format_argv(argv, req->argv, FORMAT_ALL))
3109 open_external_viewer(argv, NULL);
3114 * User request switch noodle
3118 view_driver(struct view *view, enum request request)
3122 if (request == REQ_NONE)
3125 if (request > REQ_NONE) {
3126 open_run_request(request);
3127 /* FIXME: When all views can refresh always do this. */
3128 if (view == VIEW(REQ_VIEW_STATUS) ||
3129 view == VIEW(REQ_VIEW_MAIN) ||
3130 view == VIEW(REQ_VIEW_LOG) ||
3131 view == VIEW(REQ_VIEW_STAGE))
3132 request = REQ_REFRESH;
3137 if (view && view->lines) {
3138 request = view->ops->request(view, request, &view->line[view->lineno]);
3139 if (request == REQ_NONE)
3146 case REQ_MOVE_PAGE_UP:
3147 case REQ_MOVE_PAGE_DOWN:
3148 case REQ_MOVE_FIRST_LINE:
3149 case REQ_MOVE_LAST_LINE:
3150 move_view(view, request);
3153 case REQ_SCROLL_LEFT:
3154 case REQ_SCROLL_RIGHT:
3155 case REQ_SCROLL_LINE_DOWN:
3156 case REQ_SCROLL_LINE_UP:
3157 case REQ_SCROLL_PAGE_DOWN:
3158 case REQ_SCROLL_PAGE_UP:
3159 scroll_view(view, request);
3162 case REQ_VIEW_BLAME:
3164 report("No file chosen, press %s to open tree view",
3165 get_key(REQ_VIEW_TREE));
3168 open_view(view, request, OPEN_DEFAULT);
3173 report("No file chosen, press %s to open tree view",
3174 get_key(REQ_VIEW_TREE));
3177 open_view(view, request, OPEN_DEFAULT);
3180 case REQ_VIEW_PAGER:
3181 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3182 report("No pager content, press %s to run command from prompt",
3183 get_key(REQ_PROMPT));
3186 open_view(view, request, OPEN_DEFAULT);
3189 case REQ_VIEW_STAGE:
3190 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3191 report("No stage content, press %s to open the status view and choose file",
3192 get_key(REQ_VIEW_STATUS));
3195 open_view(view, request, OPEN_DEFAULT);
3198 case REQ_VIEW_STATUS:
3199 if (opt_is_inside_work_tree == FALSE) {
3200 report("The status view requires a working tree");
3203 open_view(view, request, OPEN_DEFAULT);
3211 open_view(view, request, OPEN_DEFAULT);
3216 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3218 if ((view == VIEW(REQ_VIEW_DIFF) &&
3219 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3220 (view == VIEW(REQ_VIEW_DIFF) &&
3221 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3222 (view == VIEW(REQ_VIEW_STAGE) &&
3223 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3224 (view == VIEW(REQ_VIEW_BLOB) &&
3225 view->parent == VIEW(REQ_VIEW_TREE))) {
3228 view = view->parent;
3229 line = view->lineno;
3230 move_view(view, request);
3231 if (view_is_displayed(view))
3232 update_view_title(view);
3233 if (line != view->lineno)
3234 view->ops->request(view, REQ_ENTER,
3235 &view->line[view->lineno]);
3238 move_view(view, request);
3244 int nviews = displayed_views();
3245 int next_view = (current_view + 1) % nviews;
3247 if (next_view == current_view) {
3248 report("Only one view is displayed");
3252 current_view = next_view;
3253 /* Blur out the title of the previous view. */
3254 update_view_title(view);
3259 report("Refreshing is not yet supported for the %s view", view->name);
3263 if (displayed_views() == 2)
3264 maximize_view(view);
3267 case REQ_TOGGLE_LINENO:
3268 toggle_view_option(&opt_line_number, "line numbers");
3271 case REQ_TOGGLE_DATE:
3272 toggle_view_option(&opt_date, "date display");
3275 case REQ_TOGGLE_AUTHOR:
3276 toggle_view_option(&opt_author, "author display");
3279 case REQ_TOGGLE_REV_GRAPH:
3280 toggle_view_option(&opt_rev_graph, "revision graph display");
3283 case REQ_TOGGLE_REFS:
3284 toggle_view_option(&opt_show_refs, "reference display");
3288 case REQ_SEARCH_BACK:
3289 search_view(view, request);
3294 find_next(view, request);
3297 case REQ_STOP_LOADING:
3298 for (i = 0; i < ARRAY_SIZE(views); i++) {
3301 report("Stopped loading the %s view", view->name),
3302 end_update(view, TRUE);
3306 case REQ_SHOW_VERSION:
3307 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3310 case REQ_SCREEN_REDRAW:
3311 redraw_display(TRUE);
3315 report("Nothing to edit");
3319 report("Nothing to enter");
3322 case REQ_VIEW_CLOSE:
3323 /* XXX: Mark closed views by letting view->parent point to the
3324 * view itself. Parents to closed view should never be
3327 view->parent->parent != view->parent) {
3328 maximize_view(view->parent);
3329 view->parent = view;
3337 report("Unknown key, press 'h' for help");
3346 * View backend utilities
3349 /* Small author cache to reduce memory consumption. It uses binary
3350 * search to lookup or find place to position new entries. No entries
3351 * are ever freed. */
3353 get_author(const char *name)
3355 static const char **authors;
3356 static size_t authors_alloc;
3357 static size_t authors_size;
3359 int from = 0, to = authors_size - 1;
3361 while (from <= to) {
3362 size_t pos = (to + from) / 2;
3363 int cmp = strcmp(name, authors[pos]);
3366 return authors[pos];
3374 tmp = realloc_items(authors, &authors_alloc, authors_size + 1, sizeof(*authors));
3377 name = strdup(name);
3382 memmove(authors + from + 1, authors + from, (authors_size - from) * sizeof(*authors));
3383 authors[from] = name;
3390 parse_timezone(time_t *time, const char *zone)
3394 tz = ('0' - zone[1]) * 60 * 60 * 10;
3395 tz += ('0' - zone[2]) * 60 * 60;
3396 tz += ('0' - zone[3]) * 60;
3397 tz += ('0' - zone[4]);
3405 /* Parse author lines where the name may be empty:
3406 * author <email@address.tld> 1138474660 +0100
3409 parse_author_line(char *ident, const char **author, time_t *time)
3411 char *nameend = strchr(ident, '<');
3412 char *emailend = strchr(ident, '>');
3414 if (nameend && emailend)
3415 *nameend = *emailend = 0;
3416 ident = chomp_string(ident);
3419 ident = chomp_string(nameend + 1);
3424 *author = get_author(ident);
3426 /* Parse epoch and timezone */
3427 if (emailend && emailend[1] == ' ') {
3428 char *secs = emailend + 2;
3429 char *zone = strchr(secs, ' ');
3431 *time = (time_t) atol(secs);
3433 if (zone && strlen(zone) == STRING_SIZE(" +0700"))
3434 parse_timezone(time, zone + 1);
3438 static enum input_status
3439 select_commit_parent_handler(void *data, char *buf, int c)
3441 size_t parents = *(size_t *) data;
3448 parent = atoi(buf) * 10;
3451 if (parent > parents)
3457 select_commit_parent(const char *id, char rev[SIZEOF_REV], const char *path)
3459 char buf[SIZEOF_STR * 4];
3460 const char *revlist_argv[] = {
3461 "git", "rev-list", "-1", "--parents", id, "--", path, NULL
3465 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3466 !*chomp_string(buf) ||
3467 (parents = (strlen(buf) / 40) - 1) < 0) {
3468 report("Failed to get parent information");
3471 } else if (parents == 0) {
3473 report("Path '%s' does not exist in the parent", path);
3475 report("The selected commit has no parents");
3480 char prompt[SIZEOF_STR];
3483 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3485 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3488 parents = atoi(result);
3491 string_copy_rev(rev, &buf[41 * parents]);
3500 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3502 char text[SIZEOF_STR];
3504 if (opt_line_number && draw_lineno(view, lineno))
3507 string_expand(text, sizeof(text), line->data, opt_tab_size);
3508 draw_text(view, line->type, text, TRUE);
3513 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3515 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3516 char refbuf[SIZEOF_STR];
3519 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3520 ref = chomp_string(refbuf);
3525 /* This is the only fatal call, since it can "corrupt" the buffer. */
3526 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3533 add_pager_refs(struct view *view, struct line *line)
3535 char buf[SIZEOF_STR];
3536 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3538 size_t bufpos = 0, refpos = 0;
3539 const char *sep = "Refs: ";
3540 bool is_tag = FALSE;
3542 assert(line->type == LINE_COMMIT);
3544 refs = get_refs(commit_id);
3546 if (view == VIEW(REQ_VIEW_DIFF))
3547 goto try_add_describe_ref;
3552 struct ref *ref = refs[refpos];
3553 const char *fmt = ref->tag ? "%s[%s]" :
3554 ref->remote ? "%s<%s>" : "%s%s";
3556 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3561 } while (refs[refpos++]->next);
3563 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3564 try_add_describe_ref:
3565 /* Add <tag>-g<commit_id> "fake" reference. */
3566 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3573 add_line_text(view, buf, LINE_PP_REFS);
3577 pager_read(struct view *view, char *data)
3584 line = add_line_text(view, data, get_line_type(data));
3588 if (line->type == LINE_COMMIT &&
3589 (view == VIEW(REQ_VIEW_DIFF) ||
3590 view == VIEW(REQ_VIEW_LOG)))
3591 add_pager_refs(view, line);
3597 pager_request(struct view *view, enum request request, struct line *line)
3601 if (request != REQ_ENTER)
3604 if (line->type == LINE_COMMIT &&
3605 (view == VIEW(REQ_VIEW_LOG) ||
3606 view == VIEW(REQ_VIEW_PAGER))) {
3607 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3611 /* Always scroll the view even if it was split. That way
3612 * you can use Enter to scroll through the log view and
3613 * split open each commit diff. */
3614 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3616 /* FIXME: A minor workaround. Scrolling the view will call report("")
3617 * but if we are scrolling a non-current view this won't properly
3618 * update the view title. */
3620 update_view_title(view);
3626 pager_grep(struct view *view, struct line *line)
3628 const char *text[] = { line->data, NULL };
3630 return grep_text(view, text);
3634 pager_select(struct view *view, struct line *line)
3636 if (line->type == LINE_COMMIT) {
3637 char *text = (char *)line->data + STRING_SIZE("commit ");
3639 if (view != VIEW(REQ_VIEW_PAGER))
3640 string_copy_rev(view->ref, text);
3641 string_copy_rev(ref_commit, text);
3645 static struct view_ops pager_ops = {
3656 static const char *log_argv[SIZEOF_ARG] = {
3657 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3661 log_request(struct view *view, enum request request, struct line *line)
3666 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3669 return pager_request(view, request, line);
3673 static struct view_ops log_ops = {
3684 static const char *diff_argv[SIZEOF_ARG] = {
3685 "git", "show", "--pretty=fuller", "--no-color", "--root",
3686 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3689 static struct view_ops diff_ops = {
3705 help_open(struct view *view)
3707 char buf[SIZEOF_STR];
3711 if (view->lines > 0)
3714 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3716 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3719 if (req_info[i].request == REQ_NONE)
3722 if (!req_info[i].request) {
3723 add_line_text(view, "", LINE_DEFAULT);
3724 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3728 key = get_key(req_info[i].request);
3730 key = "(no key defined)";
3732 for (bufpos = 0; bufpos <= req_info[i].namelen; bufpos++) {
3733 buf[bufpos] = tolower(req_info[i].name[bufpos]);
3734 if (buf[bufpos] == '_')
3738 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s",
3739 key, buf, req_info[i].help);
3743 add_line_text(view, "", LINE_DEFAULT);
3744 add_line_text(view, "External commands:", LINE_DEFAULT);
3747 for (i = 0; i < run_requests; i++) {
3748 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3755 key = get_key_name(req->key);
3757 key = "(no key defined)";
3759 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3760 if (!string_format_from(buf, &bufpos, "%s%s",
3761 argc ? " " : "", req->argv[argc]))
3764 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3765 keymap_table[req->keymap].name, key, buf);
3771 static struct view_ops help_ops = {
3787 struct tree_stack_entry {
3788 struct tree_stack_entry *prev; /* Entry below this in the stack */
3789 unsigned long lineno; /* Line number to restore */
3790 char *name; /* Position of name in opt_path */
3793 /* The top of the path stack. */
3794 static struct tree_stack_entry *tree_stack = NULL;
3795 unsigned long tree_lineno = 0;
3798 pop_tree_stack_entry(void)
3800 struct tree_stack_entry *entry = tree_stack;
3802 tree_lineno = entry->lineno;
3804 tree_stack = entry->prev;
3809 push_tree_stack_entry(const char *name, unsigned long lineno)
3811 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3812 size_t pathlen = strlen(opt_path);
3817 entry->prev = tree_stack;
3818 entry->name = opt_path + pathlen;
3821 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3822 pop_tree_stack_entry();
3826 /* Move the current line to the first tree entry. */
3828 entry->lineno = lineno;
3831 /* Parse output from git-ls-tree(1):
3833 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3836 #define SIZEOF_TREE_ATTR \
3837 STRING_SIZE("100644 blob f931e1d229c3e185caad4449bf5b66ed72462657\t")
3839 #define SIZEOF_TREE_MODE \
3840 STRING_SIZE("100644 ")
3842 #define TREE_ID_OFFSET \
3843 STRING_SIZE("100644 blob ")
3846 char id[SIZEOF_REV];
3848 time_t time; /* Date from the author ident. */
3849 const char *author; /* Author of the commit. */
3854 tree_path(struct line *line)
3856 return ((struct tree_entry *) line->data)->name;
3861 tree_compare_entry(struct line *line1, struct line *line2)
3863 if (line1->type != line2->type)
3864 return line1->type == LINE_TREE_DIR ? -1 : 1;
3865 return strcmp(tree_path(line1), tree_path(line2));
3868 static struct line *
3869 tree_entry(struct view *view, enum line_type type, const char *path,
3870 const char *mode, const char *id)
3872 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3873 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3875 if (!entry || !line) {
3880 strncpy(entry->name, path, strlen(path));
3882 entry->mode = strtoul(mode, NULL, 8);
3884 string_copy_rev(entry->id, id);
3890 tree_read_date(struct view *view, char *text, bool *read_date)
3892 static const char *author_name;
3893 static time_t author_time;
3895 if (!text && *read_date) {
3900 char *path = *opt_path ? opt_path : ".";
3901 /* Find next entry to process */
3902 const char *log_file[] = {
3903 "git", "log", "--no-color", "--pretty=raw",
3904 "--cc", "--raw", view->id, "--", path, NULL
3909 tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL);
3910 report("Tree is empty");
3914 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3915 report("Failed to load tree data");
3919 done_io(view->pipe);
3924 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3925 parse_author_line(text + STRING_SIZE("author "),
3926 &author_name, &author_time);
3928 } else if (*text == ':') {
3930 size_t annotated = 1;
3933 pos = strchr(text, '\t');
3937 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3938 text += strlen(opt_prefix);
3939 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3940 text += strlen(opt_path);
3941 pos = strchr(text, '/');
3945 for (i = 1; i < view->lines; i++) {
3946 struct line *line = &view->line[i];
3947 struct tree_entry *entry = line->data;
3949 annotated += !!entry->author;
3950 if (entry->author || strcmp(entry->name, text))
3953 entry->author = author_name;
3954 entry->time = author_time;
3959 if (annotated == view->lines)
3960 kill_io(view->pipe);
3966 tree_read(struct view *view, char *text)
3968 static bool read_date = FALSE;
3969 struct tree_entry *data;
3970 struct line *entry, *line;
3971 enum line_type type;
3972 size_t textlen = text ? strlen(text) : 0;
3973 char *path = text + SIZEOF_TREE_ATTR;
3975 if (read_date || !text)
3976 return tree_read_date(view, text, &read_date);
3978 if (textlen <= SIZEOF_TREE_ATTR)
3980 if (view->lines == 0 &&
3981 !tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL))
3984 /* Strip the path part ... */
3986 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3987 size_t striplen = strlen(opt_path);
3989 if (pathlen > striplen)
3990 memmove(path, path + striplen,
3991 pathlen - striplen + 1);
3993 /* Insert "link" to parent directory. */
3994 if (view->lines == 1 &&
3995 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3999 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
4000 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
4005 /* Skip "Directory ..." and ".." line. */
4006 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
4007 if (tree_compare_entry(line, entry) <= 0)
4010 memmove(line + 1, line, (entry - line) * sizeof(*entry));
4014 for (; line <= entry; line++)
4015 line->dirty = line->cleareol = 1;
4019 if (tree_lineno > view->lineno) {
4020 view->lineno = tree_lineno;
4028 tree_draw(struct view *view, struct line *line, unsigned int lineno)
4030 struct tree_entry *entry = line->data;
4032 if (line->type == LINE_TREE_HEAD) {
4033 if (draw_text(view, line->type, "Directory path /", TRUE))
4036 if (draw_mode(view, entry->mode))
4039 if (opt_author && draw_author(view, entry->author))
4042 if (opt_date && draw_date(view, entry->author ? &entry->time : NULL))
4045 if (draw_text(view, line->type, entry->name, TRUE))
4053 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
4054 int fd = mkstemp(file);
4057 report("Failed to create temporary file");
4058 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
4059 report("Failed to save blob data to file");
4061 open_editor(FALSE, file);
4067 tree_request(struct view *view, enum request request, struct line *line)
4069 enum open_flags flags;
4072 case REQ_VIEW_BLAME:
4073 if (line->type != LINE_TREE_FILE) {
4074 report("Blame only supported for files");
4078 string_copy(opt_ref, view->vid);
4082 if (line->type != LINE_TREE_FILE) {
4083 report("Edit only supported for files");
4084 } else if (!is_head_commit(view->vid)) {
4087 open_editor(TRUE, opt_file);
4093 /* quit view if at top of tree */
4094 return REQ_VIEW_CLOSE;
4097 line = &view->line[1];
4107 /* Cleanup the stack if the tree view is at a different tree. */
4108 while (!*opt_path && tree_stack)
4109 pop_tree_stack_entry();
4111 switch (line->type) {
4113 /* Depending on whether it is a subdirectory or parent link
4114 * mangle the path buffer. */
4115 if (line == &view->line[1] && *opt_path) {
4116 pop_tree_stack_entry();
4119 const char *basename = tree_path(line);
4121 push_tree_stack_entry(basename, view->lineno);
4124 /* Trees and subtrees share the same ID, so they are not not
4125 * unique like blobs. */
4126 flags = OPEN_RELOAD;
4127 request = REQ_VIEW_TREE;
4130 case LINE_TREE_FILE:
4131 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4132 request = REQ_VIEW_BLOB;
4139 open_view(view, request, flags);
4140 if (request == REQ_VIEW_TREE)
4141 view->lineno = tree_lineno;
4147 tree_select(struct view *view, struct line *line)
4149 struct tree_entry *entry = line->data;
4151 if (line->type == LINE_TREE_FILE) {
4152 string_copy_rev(ref_blob, entry->id);
4153 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4155 } else if (line->type != LINE_TREE_DIR) {
4159 string_copy_rev(view->ref, entry->id);
4162 static const char *tree_argv[SIZEOF_ARG] = {
4163 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4166 static struct view_ops tree_ops = {
4178 blob_read(struct view *view, char *line)
4182 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4186 blob_request(struct view *view, enum request request, struct line *line)
4193 return pager_request(view, request, line);
4197 static const char *blob_argv[SIZEOF_ARG] = {
4198 "git", "cat-file", "blob", "%(blob)", NULL
4201 static struct view_ops blob_ops = {
4215 * Loading the blame view is a two phase job:
4217 * 1. File content is read either using opt_file from the
4218 * filesystem or using git-cat-file.
4219 * 2. Then blame information is incrementally added by
4220 * reading output from git-blame.
4223 static const char *blame_head_argv[] = {
4224 "git", "blame", "--incremental", "--", "%(file)", NULL
4227 static const char *blame_ref_argv[] = {
4228 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4231 static const char *blame_cat_file_argv[] = {
4232 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4235 struct blame_commit {
4236 char id[SIZEOF_REV]; /* SHA1 ID. */
4237 char title[128]; /* First line of the commit message. */
4238 const char *author; /* Author of the commit. */
4239 time_t time; /* Date from the author ident. */
4240 char filename[128]; /* Name of file. */
4241 bool has_previous; /* Was a "previous" line detected. */
4245 struct blame_commit *commit;
4246 unsigned long lineno;
4251 blame_open(struct view *view)
4253 if (*opt_ref || !io_open(&view->io, opt_file)) {
4254 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4258 setup_update(view, opt_file);
4259 string_format(view->ref, "%s ...", opt_file);
4264 static struct blame_commit *
4265 get_blame_commit(struct view *view, const char *id)
4269 for (i = 0; i < view->lines; i++) {
4270 struct blame *blame = view->line[i].data;
4275 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4276 return blame->commit;
4280 struct blame_commit *commit = calloc(1, sizeof(*commit));
4283 string_ncopy(commit->id, id, SIZEOF_REV);
4289 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4291 const char *pos = *posref;
4294 pos = strchr(pos + 1, ' ');
4295 if (!pos || !isdigit(pos[1]))
4297 *number = atoi(pos + 1);
4298 if (*number < min || *number > max)
4305 static struct blame_commit *
4306 parse_blame_commit(struct view *view, const char *text, int *blamed)
4308 struct blame_commit *commit;
4309 struct blame *blame;
4310 const char *pos = text + SIZEOF_REV - 2;
4311 size_t orig_lineno = 0;
4315 if (strlen(text) <= SIZEOF_REV || pos[1] != ' ')
4318 if (!parse_number(&pos, &orig_lineno, 1, 9999999) ||
4319 !parse_number(&pos, &lineno, 1, view->lines) ||
4320 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4323 commit = get_blame_commit(view, text);
4329 struct line *line = &view->line[lineno + group - 1];
4332 blame->commit = commit;
4333 blame->lineno = orig_lineno + group - 1;
4341 blame_read_file(struct view *view, const char *line, bool *read_file)
4344 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4347 if (view->lines == 0 && !view->parent)
4348 die("No blame exist for %s", view->vid);
4350 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4351 report("Failed to load blame data");
4355 done_io(view->pipe);
4361 size_t linelen = strlen(line);
4362 struct blame *blame = malloc(sizeof(*blame) + linelen);
4367 blame->commit = NULL;
4368 strncpy(blame->text, line, linelen);
4369 blame->text[linelen] = 0;
4370 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4375 match_blame_header(const char *name, char **line)
4377 size_t namelen = strlen(name);
4378 bool matched = !strncmp(name, *line, namelen);
4387 blame_read(struct view *view, char *line)
4389 static struct blame_commit *commit = NULL;
4390 static int blamed = 0;
4391 static bool read_file = TRUE;
4394 return blame_read_file(view, line, &read_file);
4401 string_format(view->ref, "%s", view->vid);
4402 if (view_is_displayed(view)) {
4403 update_view_title(view);
4404 redraw_view_from(view, 0);
4410 commit = parse_blame_commit(view, line, &blamed);
4411 string_format(view->ref, "%s %2d%%", view->vid,
4412 view->lines ? blamed * 100 / view->lines : 0);
4414 } else if (match_blame_header("author ", &line)) {
4415 commit->author = get_author(line);
4417 } else if (match_blame_header("author-time ", &line)) {
4418 commit->time = (time_t) atol(line);
4420 } else if (match_blame_header("author-tz ", &line)) {
4421 parse_timezone(&commit->time, line);
4423 } else if (match_blame_header("summary ", &line)) {
4424 string_ncopy(commit->title, line, strlen(line));
4426 } else if (match_blame_header("previous ", &line)) {
4427 commit->has_previous = TRUE;
4429 } else if (match_blame_header("filename ", &line)) {
4430 string_ncopy(commit->filename, line, strlen(line));
4438 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4440 struct blame *blame = line->data;
4441 time_t *time = NULL;
4442 const char *id = NULL, *author = NULL;
4443 char text[SIZEOF_STR];
4445 if (blame->commit && *blame->commit->filename) {
4446 id = blame->commit->id;
4447 author = blame->commit->author;
4448 time = &blame->commit->time;
4451 if (opt_date && draw_date(view, time))
4454 if (opt_author && draw_author(view, author))
4457 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4460 if (draw_lineno(view, lineno))
4463 string_expand(text, sizeof(text), blame->text, opt_tab_size);
4464 draw_text(view, LINE_DEFAULT, text, TRUE);
4469 check_blame_commit(struct blame *blame, bool check_null_id)
4472 report("Commit data not loaded yet");
4473 else if (check_null_id && !strcmp(blame->commit->id, NULL_ID))
4474 report("No commit exist for the selected line");
4481 setup_blame_parent_line(struct view *view, struct blame *blame)
4483 const char *diff_tree_argv[] = {
4484 "git", "diff-tree", "-U0", blame->commit->id,
4485 "--", blame->commit->filename, NULL
4488 int parent_lineno = -1;
4489 int blamed_lineno = -1;
4492 if (!run_io(&io, diff_tree_argv, NULL, IO_RD))
4495 while ((line = io_get(&io, '\n', TRUE))) {
4497 char *pos = strchr(line, '+');
4499 parent_lineno = atoi(line + 4);
4501 blamed_lineno = atoi(pos + 1);
4503 } else if (*line == '+' && parent_lineno != -1) {
4504 if (blame->lineno == blamed_lineno - 1 &&
4505 !strcmp(blame->text, line + 1)) {
4506 view->lineno = parent_lineno ? parent_lineno - 1 : 0;
4517 blame_request(struct view *view, enum request request, struct line *line)
4519 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4520 struct blame *blame = line->data;
4523 case REQ_VIEW_BLAME:
4524 if (check_blame_commit(blame, TRUE)) {
4525 string_copy(opt_ref, blame->commit->id);
4526 string_copy(opt_file, blame->commit->filename);
4528 view->lineno = blame->lineno;
4529 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4534 if (check_blame_commit(blame, TRUE) &&
4535 select_commit_parent(blame->commit->id, opt_ref,
4536 blame->commit->filename)) {
4537 string_copy(opt_file, blame->commit->filename);
4538 setup_blame_parent_line(view, blame);
4539 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4544 if (!check_blame_commit(blame, FALSE))
4547 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4548 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4551 if (!strcmp(blame->commit->id, NULL_ID)) {
4552 struct view *diff = VIEW(REQ_VIEW_DIFF);
4553 const char *diff_index_argv[] = {
4554 "git", "diff-index", "--root", "--patch-with-stat",
4555 "-C", "-M", "HEAD", "--", view->vid, NULL
4558 if (!blame->commit->has_previous) {
4559 diff_index_argv[1] = "diff";
4560 diff_index_argv[2] = "--no-color";
4561 diff_index_argv[6] = "--";
4562 diff_index_argv[7] = "/dev/null";
4565 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4566 report("Failed to allocate diff command");
4569 flags |= OPEN_PREPARED;
4572 open_view(view, REQ_VIEW_DIFF, flags);
4573 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4574 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4585 blame_grep(struct view *view, struct line *line)
4587 struct blame *blame = line->data;
4588 struct blame_commit *commit = blame->commit;
4589 const char *text[] = {
4591 commit ? commit->title : "",
4592 commit ? commit->id : "",
4593 commit && opt_author ? commit->author : "",
4594 commit && opt_date ? mkdate(&commit->time) : "",
4597 return grep_text(view, text);
4601 blame_select(struct view *view, struct line *line)
4603 struct blame *blame = line->data;
4604 struct blame_commit *commit = blame->commit;
4609 if (!strcmp(commit->id, NULL_ID))
4610 string_ncopy(ref_commit, "HEAD", 4);
4612 string_copy_rev(ref_commit, commit->id);
4615 static struct view_ops blame_ops = {
4634 char rev[SIZEOF_REV];
4635 char name[SIZEOF_STR];
4639 char rev[SIZEOF_REV];
4640 char name[SIZEOF_STR];
4644 static char status_onbranch[SIZEOF_STR];
4645 static struct status stage_status;
4646 static enum line_type stage_line_type;
4647 static size_t stage_chunks;
4648 static int *stage_chunk;
4650 /* This should work even for the "On branch" line. */
4652 status_has_none(struct view *view, struct line *line)
4654 return line < view->line + view->lines && !line[1].data;
4657 /* Get fields from the diff line:
4658 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4661 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4663 const char *old_mode = buf + 1;
4664 const char *new_mode = buf + 8;
4665 const char *old_rev = buf + 15;
4666 const char *new_rev = buf + 56;
4667 const char *status = buf + 97;
4670 old_mode[-1] != ':' ||
4671 new_mode[-1] != ' ' ||
4672 old_rev[-1] != ' ' ||
4673 new_rev[-1] != ' ' ||
4677 file->status = *status;
4679 string_copy_rev(file->old.rev, old_rev);
4680 string_copy_rev(file->new.rev, new_rev);
4682 file->old.mode = strtoul(old_mode, NULL, 8);
4683 file->new.mode = strtoul(new_mode, NULL, 8);
4685 file->old.name[0] = file->new.name[0] = 0;
4691 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4693 struct status *unmerged = NULL;
4697 if (!run_io(&io, argv, NULL, IO_RD))
4700 add_line_data(view, NULL, type);
4702 while ((buf = io_get(&io, 0, TRUE))) {
4703 struct status *file = unmerged;
4706 file = calloc(1, sizeof(*file));
4707 if (!file || !add_line_data(view, file, type))
4711 /* Parse diff info part. */
4713 file->status = status;
4715 string_copy(file->old.rev, NULL_ID);
4717 } else if (!file->status || file == unmerged) {
4718 if (!status_get_diff(file, buf, strlen(buf)))
4721 buf = io_get(&io, 0, TRUE);
4725 /* Collapse all modified entries that follow an
4726 * associated unmerged entry. */
4727 if (unmerged == file) {
4728 unmerged->status = 'U';
4730 } else if (file->status == 'U') {
4735 /* Grab the old name for rename/copy. */
4736 if (!*file->old.name &&
4737 (file->status == 'R' || file->status == 'C')) {
4738 string_ncopy(file->old.name, buf, strlen(buf));
4740 buf = io_get(&io, 0, TRUE);
4745 /* git-ls-files just delivers a NUL separated list of
4746 * file names similar to the second half of the
4747 * git-diff-* output. */
4748 string_ncopy(file->new.name, buf, strlen(buf));
4749 if (!*file->old.name)
4750 string_copy(file->old.name, file->new.name);
4754 if (io_error(&io)) {
4760 if (!view->line[view->lines - 1].data)
4761 add_line_data(view, NULL, LINE_STAT_NONE);
4767 /* Don't show unmerged entries in the staged section. */
4768 static const char *status_diff_index_argv[] = {
4769 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4770 "--cached", "-M", "HEAD", NULL
4773 static const char *status_diff_files_argv[] = {
4774 "git", "diff-files", "-z", NULL
4777 static const char *status_list_other_argv[] = {
4778 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4781 static const char *status_list_no_head_argv[] = {
4782 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4785 static const char *update_index_argv[] = {
4786 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4789 /* Restore the previous line number to stay in the context or select a
4790 * line with something that can be updated. */
4792 status_restore(struct view *view)
4794 if (view->p_lineno >= view->lines)
4795 view->p_lineno = view->lines - 1;
4796 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4798 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4801 /* If the above fails, always skip the "On branch" line. */
4802 if (view->p_lineno < view->lines)
4803 view->lineno = view->p_lineno;
4807 if (view->lineno < view->offset)
4808 view->offset = view->lineno;
4809 else if (view->offset + view->height <= view->lineno)
4810 view->offset = view->lineno - view->height + 1;
4812 view->p_restore = FALSE;
4816 status_update_onbranch(void)
4818 static const char *paths[][2] = {
4819 { "rebase-apply/rebasing", "Rebasing" },
4820 { "rebase-apply/applying", "Applying mailbox" },
4821 { "rebase-apply/", "Rebasing mailbox" },
4822 { "rebase-merge/interactive", "Interactive rebase" },
4823 { "rebase-merge/", "Rebase merge" },
4824 { "MERGE_HEAD", "Merging" },
4825 { "BISECT_LOG", "Bisecting" },
4826 { "HEAD", "On branch" },
4828 char buf[SIZEOF_STR];
4832 if (is_initial_commit()) {
4833 string_copy(status_onbranch, "Initial commit");
4837 for (i = 0; i < ARRAY_SIZE(paths); i++) {
4838 char *head = opt_head;
4840 if (!string_format(buf, "%s/%s", opt_git_dir, paths[i][0]) ||
4841 lstat(buf, &stat) < 0)
4847 if (string_format(buf, "%s/rebase-merge/head-name", opt_git_dir) &&
4848 io_open(&io, buf) &&
4849 io_read_buf(&io, buf, sizeof(buf))) {
4850 head = chomp_string(buf);
4851 if (!prefixcmp(head, "refs/heads/"))
4852 head += STRING_SIZE("refs/heads/");
4856 if (!string_format(status_onbranch, "%s %s", paths[i][1], head))
4857 string_copy(status_onbranch, opt_head);
4861 string_copy(status_onbranch, "Not currently on any branch");
4864 /* First parse staged info using git-diff-index(1), then parse unstaged
4865 * info using git-diff-files(1), and finally untracked files using
4866 * git-ls-files(1). */
4868 status_open(struct view *view)
4872 add_line_data(view, NULL, LINE_STAT_HEAD);
4873 status_update_onbranch();
4875 run_io_bg(update_index_argv);
4877 if (is_initial_commit()) {
4878 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4880 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4884 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4885 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4888 /* Restore the exact position or use the specialized restore
4890 if (!view->p_restore)
4891 status_restore(view);
4896 status_draw(struct view *view, struct line *line, unsigned int lineno)
4898 struct status *status = line->data;
4899 enum line_type type;
4903 switch (line->type) {
4904 case LINE_STAT_STAGED:
4905 type = LINE_STAT_SECTION;
4906 text = "Changes to be committed:";
4909 case LINE_STAT_UNSTAGED:
4910 type = LINE_STAT_SECTION;
4911 text = "Changed but not updated:";
4914 case LINE_STAT_UNTRACKED:
4915 type = LINE_STAT_SECTION;
4916 text = "Untracked files:";
4919 case LINE_STAT_NONE:
4920 type = LINE_DEFAULT;
4921 text = " (no files)";
4924 case LINE_STAT_HEAD:
4925 type = LINE_STAT_HEAD;
4926 text = status_onbranch;
4933 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4935 buf[0] = status->status;
4936 if (draw_text(view, line->type, buf, TRUE))
4938 type = LINE_DEFAULT;
4939 text = status->new.name;
4942 draw_text(view, type, text, TRUE);
4947 status_load_error(struct view *view, struct view *stage, const char *path)
4949 if (displayed_views() == 2 || display[current_view] != view)
4950 maximize_view(view);
4951 report("Failed to load '%s': %s", path, io_strerror(&stage->io));
4956 status_enter(struct view *view, struct line *line)
4958 struct status *status = line->data;
4959 const char *oldpath = status ? status->old.name : NULL;
4960 /* Diffs for unmerged entries are empty when passing the new
4961 * path, so leave it empty. */
4962 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4964 enum open_flags split;
4965 struct view *stage = VIEW(REQ_VIEW_STAGE);
4967 if (line->type == LINE_STAT_NONE ||
4968 (!status && line[1].type == LINE_STAT_NONE)) {
4969 report("No file to diff");
4973 switch (line->type) {
4974 case LINE_STAT_STAGED:
4975 if (is_initial_commit()) {
4976 const char *no_head_diff_argv[] = {
4977 "git", "diff", "--no-color", "--patch-with-stat",
4978 "--", "/dev/null", newpath, NULL
4981 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4982 return status_load_error(view, stage, newpath);
4984 const char *index_show_argv[] = {
4985 "git", "diff-index", "--root", "--patch-with-stat",
4986 "-C", "-M", "--cached", "HEAD", "--",
4987 oldpath, newpath, NULL
4990 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4991 return status_load_error(view, stage, newpath);
4995 info = "Staged changes to %s";
4997 info = "Staged changes";
5000 case LINE_STAT_UNSTAGED:
5002 const char *files_show_argv[] = {
5003 "git", "diff-files", "--root", "--patch-with-stat",
5004 "-C", "-M", "--", oldpath, newpath, NULL
5007 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
5008 return status_load_error(view, stage, newpath);
5010 info = "Unstaged changes to %s";
5012 info = "Unstaged changes";
5015 case LINE_STAT_UNTRACKED:
5017 report("No file to show");
5021 if (!suffixcmp(status->new.name, -1, "/")) {
5022 report("Cannot display a directory");
5026 if (!prepare_update_file(stage, newpath))
5027 return status_load_error(view, stage, newpath);
5028 info = "Untracked file %s";
5031 case LINE_STAT_HEAD:
5035 die("line type %d not handled in switch", line->type);
5038 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
5039 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
5040 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
5042 stage_status = *status;
5044 memset(&stage_status, 0, sizeof(stage_status));
5047 stage_line_type = line->type;
5049 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
5056 status_exists(struct status *status, enum line_type type)
5058 struct view *view = VIEW(REQ_VIEW_STATUS);
5059 unsigned long lineno;
5061 for (lineno = 0; lineno < view->lines; lineno++) {
5062 struct line *line = &view->line[lineno];
5063 struct status *pos = line->data;
5065 if (line->type != type)
5067 if (!pos && (!status || !status->status) && line[1].data) {
5068 select_view_line(view, lineno);
5071 if (pos && !strcmp(status->new.name, pos->new.name)) {
5072 select_view_line(view, lineno);
5082 status_update_prepare(struct io *io, enum line_type type)
5084 const char *staged_argv[] = {
5085 "git", "update-index", "-z", "--index-info", NULL
5087 const char *others_argv[] = {
5088 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
5092 case LINE_STAT_STAGED:
5093 return run_io(io, staged_argv, opt_cdup, IO_WR);
5095 case LINE_STAT_UNSTAGED:
5096 return run_io(io, others_argv, opt_cdup, IO_WR);
5098 case LINE_STAT_UNTRACKED:
5099 return run_io(io, others_argv, NULL, IO_WR);
5102 die("line type %d not handled in switch", type);
5108 status_update_write(struct io *io, struct status *status, enum line_type type)
5110 char buf[SIZEOF_STR];
5114 case LINE_STAT_STAGED:
5115 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
5118 status->old.name, 0))
5122 case LINE_STAT_UNSTAGED:
5123 case LINE_STAT_UNTRACKED:
5124 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
5129 die("line type %d not handled in switch", type);
5132 return io_write(io, buf, bufsize);
5136 status_update_file(struct status *status, enum line_type type)
5141 if (!status_update_prepare(&io, type))
5144 result = status_update_write(&io, status, type);
5145 return done_io(&io) && result;
5149 status_update_files(struct view *view, struct line *line)
5151 char buf[sizeof(view->ref)];
5154 struct line *pos = view->line + view->lines;
5157 int cursor_y, cursor_x;
5159 if (!status_update_prepare(&io, line->type))
5162 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5165 string_copy(buf, view->ref);
5166 getsyx(cursor_y, cursor_x);
5167 for (file = 0, done = 5; result && file < files; line++, file++) {
5168 int almost_done = file * 100 / files;
5170 if (almost_done > done) {
5172 string_format(view->ref, "updating file %u of %u (%d%% done)",
5174 update_view_title(view);
5175 setsyx(cursor_y, cursor_x);
5178 result = status_update_write(&io, line->data, line->type);
5180 string_copy(view->ref, buf);
5182 return done_io(&io) && result;
5186 status_update(struct view *view)
5188 struct line *line = &view->line[view->lineno];
5190 assert(view->lines);
5193 /* This should work even for the "On branch" line. */
5194 if (line < view->line + view->lines && !line[1].data) {
5195 report("Nothing to update");
5199 if (!status_update_files(view, line + 1)) {
5200 report("Failed to update file status");
5204 } else if (!status_update_file(line->data, line->type)) {
5205 report("Failed to update file status");
5213 status_revert(struct status *status, enum line_type type, bool has_none)
5215 if (!status || type != LINE_STAT_UNSTAGED) {
5216 if (type == LINE_STAT_STAGED) {
5217 report("Cannot revert changes to staged files");
5218 } else if (type == LINE_STAT_UNTRACKED) {
5219 report("Cannot revert changes to untracked files");
5220 } else if (has_none) {
5221 report("Nothing to revert");
5223 report("Cannot revert changes to multiple files");
5228 char mode[10] = "100644";
5229 const char *reset_argv[] = {
5230 "git", "update-index", "--cacheinfo", mode,
5231 status->old.rev, status->old.name, NULL
5233 const char *checkout_argv[] = {
5234 "git", "checkout", "--", status->old.name, NULL
5237 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5239 string_format(mode, "%o", status->old.mode);
5240 return (status->status != 'U' || run_io_fg(reset_argv, opt_cdup)) &&
5241 run_io_fg(checkout_argv, opt_cdup);
5246 status_request(struct view *view, enum request request, struct line *line)
5248 struct status *status = line->data;
5251 case REQ_STATUS_UPDATE:
5252 if (!status_update(view))
5256 case REQ_STATUS_REVERT:
5257 if (!status_revert(status, line->type, status_has_none(view, line)))
5261 case REQ_STATUS_MERGE:
5262 if (!status || status->status != 'U') {
5263 report("Merging only possible for files with unmerged status ('U').");
5266 open_mergetool(status->new.name);
5272 if (status->status == 'D') {
5273 report("File has been deleted.");
5277 open_editor(status->status != '?', status->new.name);
5280 case REQ_VIEW_BLAME:
5282 string_copy(opt_file, status->new.name);
5288 /* After returning the status view has been split to
5289 * show the stage view. No further reloading is
5291 return status_enter(view, line);
5294 /* Simply reload the view. */
5301 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5307 status_select(struct view *view, struct line *line)
5309 struct status *status = line->data;
5310 char file[SIZEOF_STR] = "all files";
5314 if (status && !string_format(file, "'%s'", status->new.name))
5317 if (!status && line[1].type == LINE_STAT_NONE)
5320 switch (line->type) {
5321 case LINE_STAT_STAGED:
5322 text = "Press %s to unstage %s for commit";
5325 case LINE_STAT_UNSTAGED:
5326 text = "Press %s to stage %s for commit";
5329 case LINE_STAT_UNTRACKED:
5330 text = "Press %s to stage %s for addition";
5333 case LINE_STAT_HEAD:
5334 case LINE_STAT_NONE:
5335 text = "Nothing to update";
5339 die("line type %d not handled in switch", line->type);
5342 if (status && status->status == 'U') {
5343 text = "Press %s to resolve conflict in %s";
5344 key = get_key(REQ_STATUS_MERGE);
5347 key = get_key(REQ_STATUS_UPDATE);
5350 string_format(view->ref, text, key, file);
5354 status_grep(struct view *view, struct line *line)
5356 struct status *status = line->data;
5359 const char buf[2] = { status->status, 0 };
5360 const char *text[] = { status->new.name, buf, NULL };
5362 return grep_text(view, text);
5368 static struct view_ops status_ops = {
5381 stage_diff_write(struct io *io, struct line *line, struct line *end)
5383 while (line < end) {
5384 if (!io_write(io, line->data, strlen(line->data)) ||
5385 !io_write(io, "\n", 1))
5388 if (line->type == LINE_DIFF_CHUNK ||
5389 line->type == LINE_DIFF_HEADER)
5396 static struct line *
5397 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5399 for (; view->line < line; line--)
5400 if (line->type == type)
5407 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5409 const char *apply_argv[SIZEOF_ARG] = {
5410 "git", "apply", "--whitespace=nowarn", NULL
5412 struct line *diff_hdr;
5416 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5421 apply_argv[argc++] = "--cached";
5422 if (revert || stage_line_type == LINE_STAT_STAGED)
5423 apply_argv[argc++] = "-R";
5424 apply_argv[argc++] = "-";
5425 apply_argv[argc++] = NULL;
5426 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5429 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5430 !stage_diff_write(&io, chunk, view->line + view->lines))
5434 run_io_bg(update_index_argv);
5436 return chunk ? TRUE : FALSE;
5440 stage_update(struct view *view, struct line *line)
5442 struct line *chunk = NULL;
5444 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5445 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5448 if (!stage_apply_chunk(view, chunk, FALSE)) {
5449 report("Failed to apply chunk");
5453 } else if (!stage_status.status) {
5454 view = VIEW(REQ_VIEW_STATUS);
5456 for (line = view->line; line < view->line + view->lines; line++)
5457 if (line->type == stage_line_type)
5460 if (!status_update_files(view, line + 1)) {
5461 report("Failed to update files");
5465 } else if (!status_update_file(&stage_status, stage_line_type)) {
5466 report("Failed to update file");
5474 stage_revert(struct view *view, struct line *line)
5476 struct line *chunk = NULL;
5478 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5479 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5482 if (!prompt_yesno("Are you sure you want to revert changes?"))
5485 if (!stage_apply_chunk(view, chunk, TRUE)) {
5486 report("Failed to revert chunk");
5492 return status_revert(stage_status.status ? &stage_status : NULL,
5493 stage_line_type, FALSE);
5499 stage_next(struct view *view, struct line *line)
5503 if (!stage_chunks) {
5504 static size_t alloc = 0;
5507 for (line = view->line; line < view->line + view->lines; line++) {
5508 if (line->type != LINE_DIFF_CHUNK)
5511 tmp = realloc_items(stage_chunk, &alloc,
5512 stage_chunks, sizeof(*tmp));
5514 report("Allocation failure");
5519 stage_chunk[stage_chunks++] = line - view->line;
5523 for (i = 0; i < stage_chunks; i++) {
5524 if (stage_chunk[i] > view->lineno) {
5525 do_scroll_view(view, stage_chunk[i] - view->lineno);
5526 report("Chunk %d of %d", i + 1, stage_chunks);
5531 report("No next chunk found");
5535 stage_request(struct view *view, enum request request, struct line *line)
5538 case REQ_STATUS_UPDATE:
5539 if (!stage_update(view, line))
5543 case REQ_STATUS_REVERT:
5544 if (!stage_revert(view, line))
5548 case REQ_STAGE_NEXT:
5549 if (stage_line_type == LINE_STAT_UNTRACKED) {
5550 report("File is untracked; press %s to add",
5551 get_key(REQ_STATUS_UPDATE));
5554 stage_next(view, line);
5558 if (!stage_status.new.name[0])
5560 if (stage_status.status == 'D') {
5561 report("File has been deleted.");
5565 open_editor(stage_status.status != '?', stage_status.new.name);
5569 /* Reload everything ... */
5572 case REQ_VIEW_BLAME:
5573 if (stage_status.new.name[0]) {
5574 string_copy(opt_file, stage_status.new.name);
5580 return pager_request(view, request, line);
5586 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5587 open_view(view, REQ_VIEW_STATUS, OPEN_REFRESH);
5589 /* Check whether the staged entry still exists, and close the
5590 * stage view if it doesn't. */
5591 if (!status_exists(&stage_status, stage_line_type)) {
5592 status_restore(VIEW(REQ_VIEW_STATUS));
5593 return REQ_VIEW_CLOSE;
5596 if (stage_line_type == LINE_STAT_UNTRACKED) {
5597 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5598 report("Cannot display a directory");
5602 if (!prepare_update_file(view, stage_status.new.name)) {
5603 report("Failed to open file: %s", strerror(errno));
5607 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5612 static struct view_ops stage_ops = {
5629 char id[SIZEOF_REV]; /* SHA1 ID. */
5630 char title[128]; /* First line of the commit message. */
5631 const char *author; /* Author of the commit. */
5632 time_t time; /* Date from the author ident. */
5633 struct ref **refs; /* Repository references. */
5634 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5635 size_t graph_size; /* The width of the graph array. */
5636 bool has_parents; /* Rewritten --parents seen. */
5639 /* Size of rev graph with no "padding" columns */
5640 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5643 struct rev_graph *prev, *next, *parents;
5644 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5646 struct commit *commit;
5648 unsigned int boundary:1;
5651 /* Parents of the commit being visualized. */
5652 static struct rev_graph graph_parents[4];
5654 /* The current stack of revisions on the graph. */
5655 static struct rev_graph graph_stacks[4] = {
5656 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5657 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5658 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5659 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5663 graph_parent_is_merge(struct rev_graph *graph)
5665 return graph->parents->size > 1;
5669 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5671 struct commit *commit = graph->commit;
5673 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5674 commit->graph[commit->graph_size++] = symbol;
5678 clear_rev_graph(struct rev_graph *graph)
5680 graph->boundary = 0;
5681 graph->size = graph->pos = 0;
5682 graph->commit = NULL;
5683 memset(graph->parents, 0, sizeof(*graph->parents));
5687 done_rev_graph(struct rev_graph *graph)
5689 if (graph_parent_is_merge(graph) &&
5690 graph->pos < graph->size - 1 &&
5691 graph->next->size == graph->size + graph->parents->size - 1) {
5692 size_t i = graph->pos + graph->parents->size - 1;
5694 graph->commit->graph_size = i * 2;
5695 while (i < graph->next->size - 1) {
5696 append_to_rev_graph(graph, ' ');
5697 append_to_rev_graph(graph, '\\');
5702 clear_rev_graph(graph);
5706 push_rev_graph(struct rev_graph *graph, const char *parent)
5710 /* "Collapse" duplicate parents lines.
5712 * FIXME: This needs to also update update the drawn graph but
5713 * for now it just serves as a method for pruning graph lines. */
5714 for (i = 0; i < graph->size; i++)
5715 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5718 if (graph->size < SIZEOF_REVITEMS) {
5719 string_copy_rev(graph->rev[graph->size++], parent);
5724 get_rev_graph_symbol(struct rev_graph *graph)
5728 if (graph->boundary)
5729 symbol = REVGRAPH_BOUND;
5730 else if (graph->parents->size == 0)
5731 symbol = REVGRAPH_INIT;
5732 else if (graph_parent_is_merge(graph))
5733 symbol = REVGRAPH_MERGE;
5734 else if (graph->pos >= graph->size)
5735 symbol = REVGRAPH_BRANCH;
5737 symbol = REVGRAPH_COMMIT;
5743 draw_rev_graph(struct rev_graph *graph)
5746 chtype separator, line;
5748 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5749 static struct rev_filler fillers[] = {
5755 chtype symbol = get_rev_graph_symbol(graph);
5756 struct rev_filler *filler;
5759 if (opt_line_graphics)
5760 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5762 filler = &fillers[DEFAULT];
5764 for (i = 0; i < graph->pos; i++) {
5765 append_to_rev_graph(graph, filler->line);
5766 if (graph_parent_is_merge(graph->prev) &&
5767 graph->prev->pos == i)
5768 filler = &fillers[RSHARP];
5770 append_to_rev_graph(graph, filler->separator);
5773 /* Place the symbol for this revision. */
5774 append_to_rev_graph(graph, symbol);
5776 if (graph->prev->size > graph->size)
5777 filler = &fillers[RDIAG];
5779 filler = &fillers[DEFAULT];
5783 for (; i < graph->size; i++) {
5784 append_to_rev_graph(graph, filler->separator);
5785 append_to_rev_graph(graph, filler->line);
5786 if (graph_parent_is_merge(graph->prev) &&
5787 i < graph->prev->pos + graph->parents->size)
5788 filler = &fillers[RSHARP];
5789 if (graph->prev->size > graph->size)
5790 filler = &fillers[LDIAG];
5793 if (graph->prev->size > graph->size) {
5794 append_to_rev_graph(graph, filler->separator);
5795 if (filler->line != ' ')
5796 append_to_rev_graph(graph, filler->line);
5800 /* Prepare the next rev graph */
5802 prepare_rev_graph(struct rev_graph *graph)
5806 /* First, traverse all lines of revisions up to the active one. */
5807 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5808 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5811 push_rev_graph(graph->next, graph->rev[graph->pos]);
5814 /* Interleave the new revision parent(s). */
5815 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5816 push_rev_graph(graph->next, graph->parents->rev[i]);
5818 /* Lastly, put any remaining revisions. */
5819 for (i = graph->pos + 1; i < graph->size; i++)
5820 push_rev_graph(graph->next, graph->rev[i]);
5824 update_rev_graph(struct view *view, struct rev_graph *graph)
5826 /* If this is the finalizing update ... */
5828 prepare_rev_graph(graph);
5830 /* Graph visualization needs a one rev look-ahead,
5831 * so the first update doesn't visualize anything. */
5832 if (!graph->prev->commit)
5835 if (view->lines > 2)
5836 view->line[view->lines - 3].dirty = 1;
5837 if (view->lines > 1)
5838 view->line[view->lines - 2].dirty = 1;
5839 draw_rev_graph(graph->prev);
5840 done_rev_graph(graph->prev->prev);
5848 static const char *main_argv[SIZEOF_ARG] = {
5849 "git", "log", "--no-color", "--pretty=raw", "--parents",
5850 "--topo-order", "%(head)", NULL
5854 main_draw(struct view *view, struct line *line, unsigned int lineno)
5856 struct commit *commit = line->data;
5858 if (!commit->author)
5861 if (opt_date && draw_date(view, &commit->time))
5864 if (opt_author && draw_author(view, commit->author))
5867 if (opt_rev_graph && commit->graph_size &&
5868 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5871 if (opt_show_refs && commit->refs) {
5875 enum line_type type;
5877 if (commit->refs[i]->head)
5878 type = LINE_MAIN_HEAD;
5879 else if (commit->refs[i]->ltag)
5880 type = LINE_MAIN_LOCAL_TAG;
5881 else if (commit->refs[i]->tag)
5882 type = LINE_MAIN_TAG;
5883 else if (commit->refs[i]->tracked)
5884 type = LINE_MAIN_TRACKED;
5885 else if (commit->refs[i]->remote)
5886 type = LINE_MAIN_REMOTE;
5888 type = LINE_MAIN_REF;
5890 if (draw_text(view, type, "[", TRUE) ||
5891 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5892 draw_text(view, type, "]", TRUE))
5895 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5897 } while (commit->refs[i++]->next);
5900 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5904 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5906 main_read(struct view *view, char *line)
5908 static struct rev_graph *graph = graph_stacks;
5909 enum line_type type;
5910 struct commit *commit;
5915 if (!view->lines && !view->parent)
5916 die("No revisions match the given arguments.");
5917 if (view->lines > 0) {
5918 commit = view->line[view->lines - 1].data;
5919 view->line[view->lines - 1].dirty = 1;
5920 if (!commit->author) {
5923 graph->commit = NULL;
5926 update_rev_graph(view, graph);
5928 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5929 clear_rev_graph(&graph_stacks[i]);
5933 type = get_line_type(line);
5934 if (type == LINE_COMMIT) {
5935 commit = calloc(1, sizeof(struct commit));
5939 line += STRING_SIZE("commit ");
5941 graph->boundary = 1;
5945 string_copy_rev(commit->id, line);
5946 commit->refs = get_refs(commit->id);
5947 graph->commit = commit;
5948 add_line_data(view, commit, LINE_MAIN_COMMIT);
5950 while ((line = strchr(line, ' '))) {
5952 push_rev_graph(graph->parents, line);
5953 commit->has_parents = TRUE;
5960 commit = view->line[view->lines - 1].data;
5964 if (commit->has_parents)
5966 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5970 parse_author_line(line + STRING_SIZE("author "),
5971 &commit->author, &commit->time);
5972 update_rev_graph(view, graph);
5973 graph = graph->next;
5977 /* Fill in the commit title if it has not already been set. */
5978 if (commit->title[0])
5981 /* Require titles to start with a non-space character at the
5982 * offset used by git log. */
5983 if (strncmp(line, " ", 4))
5986 /* Well, if the title starts with a whitespace character,
5987 * try to be forgiving. Otherwise we end up with no title. */
5988 while (isspace(*line))
5992 /* FIXME: More graceful handling of titles; append "..." to
5993 * shortened titles, etc. */
5995 string_expand(commit->title, sizeof(commit->title), line, 1);
5996 view->line[view->lines - 1].dirty = 1;
6003 main_request(struct view *view, enum request request, struct line *line)
6005 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
6009 open_view(view, REQ_VIEW_DIFF, flags);
6013 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
6023 grep_refs(struct ref **refs, regex_t *regex)
6028 if (!opt_show_refs || !refs)
6031 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
6033 } while (refs[i++]->next);
6039 main_grep(struct view *view, struct line *line)
6041 struct commit *commit = line->data;
6042 const char *text[] = {
6044 opt_author ? commit->author : "",
6045 opt_date ? mkdate(&commit->time) : "",
6049 return grep_text(view, text) || grep_refs(commit->refs, view->regex);
6053 main_select(struct view *view, struct line *line)
6055 struct commit *commit = line->data;
6057 string_copy_rev(view->ref, commit->id);
6058 string_copy_rev(ref_commit, view->ref);
6061 static struct view_ops main_ops = {
6074 * Unicode / UTF-8 handling
6076 * NOTE: Much of the following code for dealing with Unicode is derived from
6077 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
6078 * src/intl/charset.c from the UTF-8 branch commit elinks-0.11.0-g31f2c28.
6082 unicode_width(unsigned long c)
6085 (c <= 0x115f /* Hangul Jamo */
6088 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
6090 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
6091 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
6092 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
6093 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
6094 || (c >= 0xffe0 && c <= 0xffe6)
6095 || (c >= 0x20000 && c <= 0x2fffd)
6096 || (c >= 0x30000 && c <= 0x3fffd)))
6100 return opt_tab_size;
6105 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
6106 * Illegal bytes are set one. */
6107 static const unsigned char utf8_bytes[256] = {
6108 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,
6109 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,
6110 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,
6111 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,
6112 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,
6113 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,
6114 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,
6115 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,
6118 /* Decode UTF-8 multi-byte representation into a Unicode character. */
6119 static inline unsigned long
6120 utf8_to_unicode(const char *string, size_t length)
6122 unsigned long unicode;
6126 unicode = string[0];
6129 unicode = (string[0] & 0x1f) << 6;
6130 unicode += (string[1] & 0x3f);
6133 unicode = (string[0] & 0x0f) << 12;
6134 unicode += ((string[1] & 0x3f) << 6);
6135 unicode += (string[2] & 0x3f);
6138 unicode = (string[0] & 0x0f) << 18;
6139 unicode += ((string[1] & 0x3f) << 12);
6140 unicode += ((string[2] & 0x3f) << 6);
6141 unicode += (string[3] & 0x3f);
6144 unicode = (string[0] & 0x0f) << 24;
6145 unicode += ((string[1] & 0x3f) << 18);
6146 unicode += ((string[2] & 0x3f) << 12);
6147 unicode += ((string[3] & 0x3f) << 6);
6148 unicode += (string[4] & 0x3f);
6151 unicode = (string[0] & 0x01) << 30;
6152 unicode += ((string[1] & 0x3f) << 24);
6153 unicode += ((string[2] & 0x3f) << 18);
6154 unicode += ((string[3] & 0x3f) << 12);
6155 unicode += ((string[4] & 0x3f) << 6);
6156 unicode += (string[5] & 0x3f);
6159 die("Invalid Unicode length");
6162 /* Invalid characters could return the special 0xfffd value but NUL
6163 * should be just as good. */
6164 return unicode > 0xffff ? 0 : unicode;
6167 /* Calculates how much of string can be shown within the given maximum width
6168 * and sets trimmed parameter to non-zero value if all of string could not be
6169 * shown. If the reserve flag is TRUE, it will reserve at least one
6170 * trailing character, which can be useful when drawing a delimiter.
6172 * Returns the number of bytes to output from string to satisfy max_width. */
6174 utf8_length(const char **start, size_t skip, int *width, size_t max_width, int *trimmed, bool reserve)
6176 const char *string = *start;
6177 const char *end = strchr(string, '\0');
6178 unsigned char last_bytes = 0;
6179 size_t last_ucwidth = 0;
6184 while (string < end) {
6185 int c = *(unsigned char *) string;
6186 unsigned char bytes = utf8_bytes[c];
6188 unsigned long unicode;
6190 if (string + bytes > end)
6193 /* Change representation to figure out whether
6194 * it is a single- or double-width character. */
6196 unicode = utf8_to_unicode(string, bytes);
6197 /* FIXME: Graceful handling of invalid Unicode character. */
6201 ucwidth = unicode_width(unicode);
6203 skip -= ucwidth <= skip ? ucwidth : skip;
6207 if (*width > max_width) {
6210 if (reserve && *width == max_width) {
6211 string -= last_bytes;
6212 *width -= last_ucwidth;
6218 last_bytes = ucwidth ? bytes : 0;
6219 last_ucwidth = ucwidth;
6222 return string - *start;
6230 /* Whether or not the curses interface has been initialized. */
6231 static bool cursed = FALSE;
6233 /* Terminal hacks and workarounds. */
6234 static bool use_scroll_redrawwin;
6235 static bool use_scroll_status_wclear;
6237 /* The status window is used for polling keystrokes. */
6238 static WINDOW *status_win;
6240 /* Reading from the prompt? */
6241 static bool input_mode = FALSE;
6243 static bool status_empty = FALSE;
6245 /* Update status and title window. */
6247 report(const char *msg, ...)
6249 struct view *view = display[current_view];
6255 char buf[SIZEOF_STR];
6258 va_start(args, msg);
6259 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6260 buf[sizeof(buf) - 1] = 0;
6261 buf[sizeof(buf) - 2] = '.';
6262 buf[sizeof(buf) - 3] = '.';
6263 buf[sizeof(buf) - 4] = '.';
6269 if (!status_empty || *msg) {
6272 va_start(args, msg);
6274 wmove(status_win, 0, 0);
6275 if (view->has_scrolled && use_scroll_status_wclear)
6278 vwprintw(status_win, msg, args);
6279 status_empty = FALSE;
6281 status_empty = TRUE;
6283 wclrtoeol(status_win);
6284 wnoutrefresh(status_win);
6289 update_view_title(view);
6292 /* Controls when nodelay should be in effect when polling user input. */
6294 set_nonblocking_input(bool loading)
6296 static unsigned int loading_views;
6298 if ((loading == FALSE && loading_views-- == 1) ||
6299 (loading == TRUE && loading_views++ == 0))
6300 nodelay(status_win, loading);
6309 /* Initialize the curses library */
6310 if (isatty(STDIN_FILENO)) {
6311 cursed = !!initscr();
6314 /* Leave stdin and stdout alone when acting as a pager. */
6315 opt_tty = fopen("/dev/tty", "r+");
6317 die("Failed to open /dev/tty");
6318 cursed = !!newterm(NULL, opt_tty, opt_tty);
6322 die("Failed to initialize curses");
6324 nonl(); /* Disable conversion and detect newlines from input. */
6325 cbreak(); /* Take input chars one at a time, no wait for \n */
6326 noecho(); /* Don't echo input */
6327 leaveok(stdscr, FALSE);
6332 getmaxyx(stdscr, y, x);
6333 status_win = newwin(1, 0, y - 1, 0);
6335 die("Failed to create status window");
6337 /* Enable keyboard mapping */
6338 keypad(status_win, TRUE);
6339 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6341 TABSIZE = opt_tab_size;
6342 if (opt_line_graphics) {
6343 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6346 term = getenv("XTERM_VERSION") ? NULL : getenv("COLORTERM");
6347 if (term && !strcmp(term, "gnome-terminal")) {
6348 /* In the gnome-terminal-emulator, the message from
6349 * scrolling up one line when impossible followed by
6350 * scrolling down one line causes corruption of the
6351 * status line. This is fixed by calling wclear. */
6352 use_scroll_status_wclear = TRUE;
6353 use_scroll_redrawwin = FALSE;
6355 } else if (term && !strcmp(term, "xrvt-xpm")) {
6356 /* No problems with full optimizations in xrvt-(unicode)
6358 use_scroll_status_wclear = use_scroll_redrawwin = FALSE;
6361 /* When scrolling in (u)xterm the last line in the
6362 * scrolling direction will update slowly. */
6363 use_scroll_redrawwin = TRUE;
6364 use_scroll_status_wclear = FALSE;
6369 get_input(int prompt_position)
6372 int i, key, cursor_y, cursor_x;
6374 if (prompt_position)
6378 foreach_view (view, i) {
6380 if (view_is_displayed(view) && view->has_scrolled &&
6381 use_scroll_redrawwin)
6382 redrawwin(view->win);
6383 view->has_scrolled = FALSE;
6386 /* Update the cursor position. */
6387 if (prompt_position) {
6388 getbegyx(status_win, cursor_y, cursor_x);
6389 cursor_x = prompt_position;
6391 view = display[current_view];
6392 getbegyx(view->win, cursor_y, cursor_x);
6393 cursor_x = view->width - 1;
6394 cursor_y += view->lineno - view->offset;
6396 setsyx(cursor_y, cursor_x);
6398 /* Refresh, accept single keystroke of input */
6400 key = wgetch(status_win);
6402 /* wgetch() with nodelay() enabled returns ERR when
6403 * there's no input. */
6406 } else if (key == KEY_RESIZE) {
6409 getmaxyx(stdscr, height, width);
6411 wresize(status_win, 1, width);
6412 mvwin(status_win, height - 1, 0);
6413 wnoutrefresh(status_win);
6415 redraw_display(TRUE);
6425 prompt_input(const char *prompt, input_handler handler, void *data)
6427 enum input_status status = INPUT_OK;
6428 static char buf[SIZEOF_STR];
6433 while (status == INPUT_OK || status == INPUT_SKIP) {
6436 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6437 wclrtoeol(status_win);
6439 key = get_input(pos + 1);
6444 status = pos ? INPUT_STOP : INPUT_CANCEL;
6451 status = INPUT_CANCEL;
6455 status = INPUT_CANCEL;
6459 if (pos >= sizeof(buf)) {
6460 report("Input string too long");
6464 status = handler(data, buf, key);
6465 if (status == INPUT_OK)
6466 buf[pos++] = (char) key;
6470 /* Clear the status window */
6471 status_empty = FALSE;
6474 if (status == INPUT_CANCEL)
6482 static enum input_status
6483 prompt_yesno_handler(void *data, char *buf, int c)
6485 if (c == 'y' || c == 'Y')
6487 if (c == 'n' || c == 'N')
6488 return INPUT_CANCEL;
6493 prompt_yesno(const char *prompt)
6495 char prompt2[SIZEOF_STR];
6497 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6500 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6503 static enum input_status
6504 read_prompt_handler(void *data, char *buf, int c)
6506 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6510 read_prompt(const char *prompt)
6512 return prompt_input(prompt, read_prompt_handler, NULL);
6516 * Repository properties
6519 static struct ref *refs = NULL;
6520 static size_t refs_alloc = 0;
6521 static size_t refs_size = 0;
6523 /* Id <-> ref store */
6524 static struct ref ***id_refs = NULL;
6525 static size_t id_refs_alloc = 0;
6526 static size_t id_refs_size = 0;
6529 compare_refs(const void *ref1_, const void *ref2_)
6531 const struct ref *ref1 = *(const struct ref **)ref1_;
6532 const struct ref *ref2 = *(const struct ref **)ref2_;
6534 if (ref1->tag != ref2->tag)
6535 return ref2->tag - ref1->tag;
6536 if (ref1->ltag != ref2->ltag)
6537 return ref2->ltag - ref2->ltag;
6538 if (ref1->head != ref2->head)
6539 return ref2->head - ref1->head;
6540 if (ref1->tracked != ref2->tracked)
6541 return ref2->tracked - ref1->tracked;
6542 if (ref1->remote != ref2->remote)
6543 return ref2->remote - ref1->remote;
6544 return strcmp(ref1->name, ref2->name);
6547 static struct ref **
6548 get_refs(const char *id)
6550 struct ref ***tmp_id_refs;
6551 struct ref **ref_list = NULL;
6552 size_t ref_list_alloc = 0;
6553 size_t ref_list_size = 0;
6556 for (i = 0; i < id_refs_size; i++)
6557 if (!strcmp(id, id_refs[i][0]->id))
6560 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6565 id_refs = tmp_id_refs;
6567 for (i = 0; i < refs_size; i++) {
6570 if (strcmp(id, refs[i].id))
6573 tmp = realloc_items(ref_list, &ref_list_alloc,
6574 ref_list_size + 1, sizeof(*ref_list));
6582 ref_list[ref_list_size] = &refs[i];
6583 /* XXX: The properties of the commit chains ensures that we can
6584 * safely modify the shared ref. The repo references will
6585 * always be similar for the same id. */
6586 ref_list[ref_list_size]->next = 1;
6592 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6593 ref_list[ref_list_size - 1]->next = 0;
6594 id_refs[id_refs_size++] = ref_list;
6601 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6606 bool remote = FALSE;
6607 bool tracked = FALSE;
6608 bool check_replace = FALSE;
6611 if (!prefixcmp(name, "refs/tags/")) {
6612 if (!suffixcmp(name, namelen, "^{}")) {
6615 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6616 check_replace = TRUE;
6622 namelen -= STRING_SIZE("refs/tags/");
6623 name += STRING_SIZE("refs/tags/");
6625 } else if (!prefixcmp(name, "refs/remotes/")) {
6627 namelen -= STRING_SIZE("refs/remotes/");
6628 name += STRING_SIZE("refs/remotes/");
6629 tracked = !strcmp(opt_remote, name);
6631 } else if (!prefixcmp(name, "refs/heads/")) {
6632 namelen -= STRING_SIZE("refs/heads/");
6633 name += STRING_SIZE("refs/heads/");
6634 head = !strncmp(opt_head, name, namelen);
6636 } else if (!strcmp(name, "HEAD")) {
6637 string_ncopy(opt_head_rev, id, idlen);
6641 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6642 /* it's an annotated tag, replace the previous SHA1 with the
6643 * resolved commit id; relies on the fact git-ls-remote lists
6644 * the commit id of an annotated tag right before the commit id
6646 refs[refs_size - 1].ltag = ltag;
6647 string_copy_rev(refs[refs_size - 1].id, id);
6651 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6655 ref = &refs[refs_size++];
6656 ref->name = malloc(namelen + 1);
6660 strncpy(ref->name, name, namelen);
6661 ref->name[namelen] = 0;
6665 ref->remote = remote;
6666 ref->tracked = tracked;
6667 string_copy_rev(ref->id, id);
6675 static const char *ls_remote_argv[SIZEOF_ARG] = {
6676 "git", "ls-remote", opt_git_dir, NULL
6678 static bool init = FALSE;
6681 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6688 while (refs_size > 0)
6689 free(refs[--refs_size].name);
6690 while (id_refs_size > 0)
6691 free(id_refs[--id_refs_size]);
6693 return run_io_load(ls_remote_argv, "\t", read_ref);
6697 set_remote_branch(const char *name, const char *value, size_t valuelen)
6699 if (!strcmp(name, ".remote")) {
6700 string_ncopy(opt_remote, value, valuelen);
6702 } else if (*opt_remote && !strcmp(name, ".merge")) {
6703 size_t from = strlen(opt_remote);
6705 if (!prefixcmp(value, "refs/heads/"))
6706 value += STRING_SIZE("refs/heads/");
6708 if (!string_format_from(opt_remote, &from, "/%s", value))
6714 set_repo_config_option(char *name, char *value, int (*cmd)(int, const char **))
6716 const char *argv[SIZEOF_ARG] = { name, "=" };
6717 int argc = 1 + (cmd == option_set_command);
6720 if (!argv_from_string(argv, &argc, value))
6721 config_msg = "Too many option arguments";
6723 error = cmd(argc, argv);
6726 warn("Option 'tig.%s': %s", name, config_msg);
6730 set_environment_variable(const char *name, const char *value)
6732 size_t len = strlen(name) + 1 + strlen(value) + 1;
6733 char *env = malloc(len);
6736 string_nformat(env, len, NULL, "%s=%s", name, value) &&
6744 set_work_tree(const char *value)
6746 char cwd[SIZEOF_STR];
6748 if (!getcwd(cwd, sizeof(cwd)))
6749 die("Failed to get cwd path: %s", strerror(errno));
6750 if (chdir(opt_git_dir) < 0)
6751 die("Failed to chdir(%s): %s", strerror(errno));
6752 if (!getcwd(opt_git_dir, sizeof(opt_git_dir)))
6753 die("Failed to get git path: %s", strerror(errno));
6755 die("Failed to chdir(%s): %s", cwd, strerror(errno));
6756 if (chdir(value) < 0)
6757 die("Failed to chdir(%s): %s", value, strerror(errno));
6758 if (!getcwd(cwd, sizeof(cwd)))
6759 die("Failed to get cwd path: %s", strerror(errno));
6760 if (!set_environment_variable("GIT_WORK_TREE", cwd))
6761 die("Failed to set GIT_WORK_TREE to '%s'", cwd);
6762 if (!set_environment_variable("GIT_DIR", opt_git_dir))
6763 die("Failed to set GIT_DIR to '%s'", opt_git_dir);
6764 opt_is_inside_work_tree = TRUE;
6768 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6770 if (!strcmp(name, "i18n.commitencoding"))
6771 string_ncopy(opt_encoding, value, valuelen);
6773 else if (!strcmp(name, "core.editor"))
6774 string_ncopy(opt_editor, value, valuelen);
6776 else if (!strcmp(name, "core.worktree"))
6777 set_work_tree(value);
6779 else if (!prefixcmp(name, "tig.color."))
6780 set_repo_config_option(name + 10, value, option_color_command);
6782 else if (!prefixcmp(name, "tig.bind."))
6783 set_repo_config_option(name + 9, value, option_bind_command);
6785 else if (!prefixcmp(name, "tig."))
6786 set_repo_config_option(name + 4, value, option_set_command);
6788 else if (*opt_head && !prefixcmp(name, "branch.") &&
6789 !strncmp(name + 7, opt_head, strlen(opt_head)))
6790 set_remote_branch(name + 7 + strlen(opt_head), value, valuelen);
6796 load_git_config(void)
6798 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6800 return run_io_load(config_list_argv, "=", read_repo_config_option);
6804 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6806 if (!opt_git_dir[0]) {
6807 string_ncopy(opt_git_dir, name, namelen);
6809 } else if (opt_is_inside_work_tree == -1) {
6810 /* This can be 3 different values depending on the
6811 * version of git being used. If git-rev-parse does not
6812 * understand --is-inside-work-tree it will simply echo
6813 * the option else either "true" or "false" is printed.
6814 * Default to true for the unknown case. */
6815 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6817 } else if (*name == '.') {
6818 string_ncopy(opt_cdup, name, namelen);
6821 string_ncopy(opt_prefix, name, namelen);
6828 load_repo_info(void)
6830 const char *head_argv[] = {
6831 "git", "symbolic-ref", "HEAD", NULL
6833 const char *rev_parse_argv[] = {
6834 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6835 "--show-cdup", "--show-prefix", NULL
6838 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6839 chomp_string(opt_head);
6840 if (!prefixcmp(opt_head, "refs/heads/")) {
6841 char *offset = opt_head + STRING_SIZE("refs/heads/");
6843 memmove(opt_head, offset, strlen(offset) + 1);
6847 return run_io_load(rev_parse_argv, "=", read_repo_info);
6855 static const char usage[] =
6856 "tig " TIG_VERSION " (" __DATE__ ")\n"
6858 "Usage: tig [options] [revs] [--] [paths]\n"
6859 " or: tig show [options] [revs] [--] [paths]\n"
6860 " or: tig blame [rev] path\n"
6862 " or: tig < [git command output]\n"
6865 " -v, --version Show version and exit\n"
6866 " -h, --help Show help message and exit";
6868 static void __NORETURN
6871 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6877 static void __NORETURN
6878 die(const char *err, ...)
6884 va_start(args, err);
6885 fputs("tig: ", stderr);
6886 vfprintf(stderr, err, args);
6887 fputs("\n", stderr);
6894 warn(const char *msg, ...)
6898 va_start(args, msg);
6899 fputs("tig warning: ", stderr);
6900 vfprintf(stderr, msg, args);
6901 fputs("\n", stderr);
6906 parse_options(int argc, const char *argv[])
6908 enum request request = REQ_VIEW_MAIN;
6909 const char *subcommand;
6910 bool seen_dashdash = FALSE;
6911 /* XXX: This is vulnerable to the user overriding options
6912 * required for the main view parser. */
6913 const char *custom_argv[SIZEOF_ARG] = {
6914 "git", "log", "--no-color", "--pretty=raw", "--parents",
6915 "--topo-order", NULL
6919 if (!isatty(STDIN_FILENO)) {
6920 io_open(&VIEW(REQ_VIEW_PAGER)->io, "");
6921 return REQ_VIEW_PAGER;
6927 subcommand = argv[1];
6928 if (!strcmp(subcommand, "status")) {
6930 warn("ignoring arguments after `%s'", subcommand);
6931 return REQ_VIEW_STATUS;
6933 } else if (!strcmp(subcommand, "blame")) {
6934 if (argc <= 2 || argc > 4)
6935 die("invalid number of options to blame\n\n%s", usage);
6939 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
6943 string_ncopy(opt_file, argv[i], strlen(argv[i]));
6944 return REQ_VIEW_BLAME;
6946 } else if (!strcmp(subcommand, "show")) {
6947 request = REQ_VIEW_DIFF;
6954 custom_argv[1] = subcommand;
6958 for (i = 1 + !!subcommand; i < argc; i++) {
6959 const char *opt = argv[i];
6961 if (seen_dashdash || !strcmp(opt, "--")) {
6962 seen_dashdash = TRUE;
6964 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
6965 printf("tig version %s\n", TIG_VERSION);
6968 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
6969 printf("%s\n", usage);
6973 custom_argv[j++] = opt;
6974 if (j >= ARRAY_SIZE(custom_argv))
6975 die("command too long");
6978 if (!prepare_update(VIEW(request), custom_argv, NULL, FORMAT_NONE))
6979 die("Failed to format arguments");
6985 main(int argc, const char *argv[])
6987 enum request request = parse_options(argc, argv);
6991 signal(SIGINT, quit);
6992 signal(SIGPIPE, SIG_IGN);
6994 if (setlocale(LC_ALL, "")) {
6995 char *codeset = nl_langinfo(CODESET);
6997 string_ncopy(opt_codeset, codeset, strlen(codeset));
7000 if (load_repo_info() == ERR)
7001 die("Failed to load repo info.");
7003 if (load_options() == ERR)
7004 die("Failed to load user config.");
7006 if (load_git_config() == ERR)
7007 die("Failed to load repo config.");
7009 /* Require a git repository unless when running in pager mode. */
7010 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
7011 die("Not a git repository");
7013 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
7016 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
7017 opt_iconv = iconv_open(opt_codeset, opt_encoding);
7018 if (opt_iconv == ICONV_NONE)
7019 die("Failed to initialize character set conversion");
7022 if (load_refs() == ERR)
7023 die("Failed to load refs.");
7025 foreach_view (view, i)
7026 argv_from_env(view->ops->argv, view->cmd_env);
7030 if (request != REQ_NONE)
7031 open_view(NULL, request, OPEN_PREPARED);
7032 request = request == REQ_NONE ? REQ_VIEW_MAIN : REQ_NONE;
7034 while (view_driver(display[current_view], request)) {
7035 int key = get_input(0);
7037 view = display[current_view];
7038 request = get_keybinding(view->keymap, key);
7040 /* Some low-level request handling. This keeps access to
7041 * status_win restricted. */
7045 char *cmd = read_prompt(":");
7047 if (cmd && isdigit(*cmd)) {
7048 int lineno = view->lineno + 1;
7050 if (parse_int(&lineno, cmd, 1, view->lines + 1) == OK) {
7051 select_view_line(view, lineno - 1);
7054 report("Unable to parse '%s' as a line number", cmd);
7058 struct view *next = VIEW(REQ_VIEW_PAGER);
7059 const char *argv[SIZEOF_ARG] = { "git" };
7062 /* When running random commands, initially show the
7063 * command in the title. However, it maybe later be
7064 * overwritten if a commit line is selected. */
7065 string_ncopy(next->ref, cmd, strlen(cmd));
7067 if (!argv_from_string(argv, &argc, cmd)) {
7068 report("Too many arguments");
7069 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
7070 report("Failed to format command");
7072 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
7080 case REQ_SEARCH_BACK:
7082 const char *prompt = request == REQ_SEARCH ? "/" : "?";
7083 char *search = read_prompt(prompt);
7086 string_ncopy(opt_search, search, strlen(search));
7087 else if (*opt_search)
7088 request = request == REQ_SEARCH ?