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_grep(struct view *view, struct line *line)
4149 struct tree_entry *entry = line->data;
4150 const char *text[] = {
4152 opt_author ? entry->author : "",
4153 opt_date ? mkdate(&entry->time) : "",
4157 return grep_text(view, text);
4161 tree_select(struct view *view, struct line *line)
4163 struct tree_entry *entry = line->data;
4165 if (line->type == LINE_TREE_FILE) {
4166 string_copy_rev(ref_blob, entry->id);
4167 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4169 } else if (line->type != LINE_TREE_DIR) {
4173 string_copy_rev(view->ref, entry->id);
4176 static const char *tree_argv[SIZEOF_ARG] = {
4177 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4180 static struct view_ops tree_ops = {
4192 blob_read(struct view *view, char *line)
4196 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4200 blob_request(struct view *view, enum request request, struct line *line)
4207 return pager_request(view, request, line);
4211 static const char *blob_argv[SIZEOF_ARG] = {
4212 "git", "cat-file", "blob", "%(blob)", NULL
4215 static struct view_ops blob_ops = {
4229 * Loading the blame view is a two phase job:
4231 * 1. File content is read either using opt_file from the
4232 * filesystem or using git-cat-file.
4233 * 2. Then blame information is incrementally added by
4234 * reading output from git-blame.
4237 static const char *blame_head_argv[] = {
4238 "git", "blame", "--incremental", "--", "%(file)", NULL
4241 static const char *blame_ref_argv[] = {
4242 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4245 static const char *blame_cat_file_argv[] = {
4246 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4249 struct blame_commit {
4250 char id[SIZEOF_REV]; /* SHA1 ID. */
4251 char title[128]; /* First line of the commit message. */
4252 const char *author; /* Author of the commit. */
4253 time_t time; /* Date from the author ident. */
4254 char filename[128]; /* Name of file. */
4255 bool has_previous; /* Was a "previous" line detected. */
4259 struct blame_commit *commit;
4260 unsigned long lineno;
4265 blame_open(struct view *view)
4267 if (*opt_ref || !io_open(&view->io, opt_file)) {
4268 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4272 setup_update(view, opt_file);
4273 string_format(view->ref, "%s ...", opt_file);
4278 static struct blame_commit *
4279 get_blame_commit(struct view *view, const char *id)
4283 for (i = 0; i < view->lines; i++) {
4284 struct blame *blame = view->line[i].data;
4289 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4290 return blame->commit;
4294 struct blame_commit *commit = calloc(1, sizeof(*commit));
4297 string_ncopy(commit->id, id, SIZEOF_REV);
4303 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4305 const char *pos = *posref;
4308 pos = strchr(pos + 1, ' ');
4309 if (!pos || !isdigit(pos[1]))
4311 *number = atoi(pos + 1);
4312 if (*number < min || *number > max)
4319 static struct blame_commit *
4320 parse_blame_commit(struct view *view, const char *text, int *blamed)
4322 struct blame_commit *commit;
4323 struct blame *blame;
4324 const char *pos = text + SIZEOF_REV - 2;
4325 size_t orig_lineno = 0;
4329 if (strlen(text) <= SIZEOF_REV || pos[1] != ' ')
4332 if (!parse_number(&pos, &orig_lineno, 1, 9999999) ||
4333 !parse_number(&pos, &lineno, 1, view->lines) ||
4334 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4337 commit = get_blame_commit(view, text);
4343 struct line *line = &view->line[lineno + group - 1];
4346 blame->commit = commit;
4347 blame->lineno = orig_lineno + group - 1;
4355 blame_read_file(struct view *view, const char *line, bool *read_file)
4358 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4361 if (view->lines == 0 && !view->parent)
4362 die("No blame exist for %s", view->vid);
4364 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4365 report("Failed to load blame data");
4369 done_io(view->pipe);
4375 size_t linelen = strlen(line);
4376 struct blame *blame = malloc(sizeof(*blame) + linelen);
4381 blame->commit = NULL;
4382 strncpy(blame->text, line, linelen);
4383 blame->text[linelen] = 0;
4384 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4389 match_blame_header(const char *name, char **line)
4391 size_t namelen = strlen(name);
4392 bool matched = !strncmp(name, *line, namelen);
4401 blame_read(struct view *view, char *line)
4403 static struct blame_commit *commit = NULL;
4404 static int blamed = 0;
4405 static bool read_file = TRUE;
4408 return blame_read_file(view, line, &read_file);
4415 string_format(view->ref, "%s", view->vid);
4416 if (view_is_displayed(view)) {
4417 update_view_title(view);
4418 redraw_view_from(view, 0);
4424 commit = parse_blame_commit(view, line, &blamed);
4425 string_format(view->ref, "%s %2d%%", view->vid,
4426 view->lines ? blamed * 100 / view->lines : 0);
4428 } else if (match_blame_header("author ", &line)) {
4429 commit->author = get_author(line);
4431 } else if (match_blame_header("author-time ", &line)) {
4432 commit->time = (time_t) atol(line);
4434 } else if (match_blame_header("author-tz ", &line)) {
4435 parse_timezone(&commit->time, line);
4437 } else if (match_blame_header("summary ", &line)) {
4438 string_ncopy(commit->title, line, strlen(line));
4440 } else if (match_blame_header("previous ", &line)) {
4441 commit->has_previous = TRUE;
4443 } else if (match_blame_header("filename ", &line)) {
4444 string_ncopy(commit->filename, line, strlen(line));
4452 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4454 struct blame *blame = line->data;
4455 time_t *time = NULL;
4456 const char *id = NULL, *author = NULL;
4457 char text[SIZEOF_STR];
4459 if (blame->commit && *blame->commit->filename) {
4460 id = blame->commit->id;
4461 author = blame->commit->author;
4462 time = &blame->commit->time;
4465 if (opt_date && draw_date(view, time))
4468 if (opt_author && draw_author(view, author))
4471 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4474 if (draw_lineno(view, lineno))
4477 string_expand(text, sizeof(text), blame->text, opt_tab_size);
4478 draw_text(view, LINE_DEFAULT, text, TRUE);
4483 check_blame_commit(struct blame *blame, bool check_null_id)
4486 report("Commit data not loaded yet");
4487 else if (check_null_id && !strcmp(blame->commit->id, NULL_ID))
4488 report("No commit exist for the selected line");
4495 setup_blame_parent_line(struct view *view, struct blame *blame)
4497 const char *diff_tree_argv[] = {
4498 "git", "diff-tree", "-U0", blame->commit->id,
4499 "--", blame->commit->filename, NULL
4502 int parent_lineno = -1;
4503 int blamed_lineno = -1;
4506 if (!run_io(&io, diff_tree_argv, NULL, IO_RD))
4509 while ((line = io_get(&io, '\n', TRUE))) {
4511 char *pos = strchr(line, '+');
4513 parent_lineno = atoi(line + 4);
4515 blamed_lineno = atoi(pos + 1);
4517 } else if (*line == '+' && parent_lineno != -1) {
4518 if (blame->lineno == blamed_lineno - 1 &&
4519 !strcmp(blame->text, line + 1)) {
4520 view->lineno = parent_lineno ? parent_lineno - 1 : 0;
4531 blame_request(struct view *view, enum request request, struct line *line)
4533 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4534 struct blame *blame = line->data;
4537 case REQ_VIEW_BLAME:
4538 if (check_blame_commit(blame, TRUE)) {
4539 string_copy(opt_ref, blame->commit->id);
4540 string_copy(opt_file, blame->commit->filename);
4542 view->lineno = blame->lineno;
4543 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4548 if (check_blame_commit(blame, TRUE) &&
4549 select_commit_parent(blame->commit->id, opt_ref,
4550 blame->commit->filename)) {
4551 string_copy(opt_file, blame->commit->filename);
4552 setup_blame_parent_line(view, blame);
4553 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4558 if (!check_blame_commit(blame, FALSE))
4561 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4562 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4565 if (!strcmp(blame->commit->id, NULL_ID)) {
4566 struct view *diff = VIEW(REQ_VIEW_DIFF);
4567 const char *diff_index_argv[] = {
4568 "git", "diff-index", "--root", "--patch-with-stat",
4569 "-C", "-M", "HEAD", "--", view->vid, NULL
4572 if (!blame->commit->has_previous) {
4573 diff_index_argv[1] = "diff";
4574 diff_index_argv[2] = "--no-color";
4575 diff_index_argv[6] = "--";
4576 diff_index_argv[7] = "/dev/null";
4579 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4580 report("Failed to allocate diff command");
4583 flags |= OPEN_PREPARED;
4586 open_view(view, REQ_VIEW_DIFF, flags);
4587 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4588 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4599 blame_grep(struct view *view, struct line *line)
4601 struct blame *blame = line->data;
4602 struct blame_commit *commit = blame->commit;
4603 const char *text[] = {
4605 commit ? commit->title : "",
4606 commit ? commit->id : "",
4607 commit && opt_author ? commit->author : "",
4608 commit && opt_date ? mkdate(&commit->time) : "",
4611 return grep_text(view, text);
4615 blame_select(struct view *view, struct line *line)
4617 struct blame *blame = line->data;
4618 struct blame_commit *commit = blame->commit;
4623 if (!strcmp(commit->id, NULL_ID))
4624 string_ncopy(ref_commit, "HEAD", 4);
4626 string_copy_rev(ref_commit, commit->id);
4629 static struct view_ops blame_ops = {
4648 char rev[SIZEOF_REV];
4649 char name[SIZEOF_STR];
4653 char rev[SIZEOF_REV];
4654 char name[SIZEOF_STR];
4658 static char status_onbranch[SIZEOF_STR];
4659 static struct status stage_status;
4660 static enum line_type stage_line_type;
4661 static size_t stage_chunks;
4662 static int *stage_chunk;
4664 /* This should work even for the "On branch" line. */
4666 status_has_none(struct view *view, struct line *line)
4668 return line < view->line + view->lines && !line[1].data;
4671 /* Get fields from the diff line:
4672 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4675 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4677 const char *old_mode = buf + 1;
4678 const char *new_mode = buf + 8;
4679 const char *old_rev = buf + 15;
4680 const char *new_rev = buf + 56;
4681 const char *status = buf + 97;
4684 old_mode[-1] != ':' ||
4685 new_mode[-1] != ' ' ||
4686 old_rev[-1] != ' ' ||
4687 new_rev[-1] != ' ' ||
4691 file->status = *status;
4693 string_copy_rev(file->old.rev, old_rev);
4694 string_copy_rev(file->new.rev, new_rev);
4696 file->old.mode = strtoul(old_mode, NULL, 8);
4697 file->new.mode = strtoul(new_mode, NULL, 8);
4699 file->old.name[0] = file->new.name[0] = 0;
4705 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4707 struct status *unmerged = NULL;
4711 if (!run_io(&io, argv, NULL, IO_RD))
4714 add_line_data(view, NULL, type);
4716 while ((buf = io_get(&io, 0, TRUE))) {
4717 struct status *file = unmerged;
4720 file = calloc(1, sizeof(*file));
4721 if (!file || !add_line_data(view, file, type))
4725 /* Parse diff info part. */
4727 file->status = status;
4729 string_copy(file->old.rev, NULL_ID);
4731 } else if (!file->status || file == unmerged) {
4732 if (!status_get_diff(file, buf, strlen(buf)))
4735 buf = io_get(&io, 0, TRUE);
4739 /* Collapse all modified entries that follow an
4740 * associated unmerged entry. */
4741 if (unmerged == file) {
4742 unmerged->status = 'U';
4744 } else if (file->status == 'U') {
4749 /* Grab the old name for rename/copy. */
4750 if (!*file->old.name &&
4751 (file->status == 'R' || file->status == 'C')) {
4752 string_ncopy(file->old.name, buf, strlen(buf));
4754 buf = io_get(&io, 0, TRUE);
4759 /* git-ls-files just delivers a NUL separated list of
4760 * file names similar to the second half of the
4761 * git-diff-* output. */
4762 string_ncopy(file->new.name, buf, strlen(buf));
4763 if (!*file->old.name)
4764 string_copy(file->old.name, file->new.name);
4768 if (io_error(&io)) {
4774 if (!view->line[view->lines - 1].data)
4775 add_line_data(view, NULL, LINE_STAT_NONE);
4781 /* Don't show unmerged entries in the staged section. */
4782 static const char *status_diff_index_argv[] = {
4783 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4784 "--cached", "-M", "HEAD", NULL
4787 static const char *status_diff_files_argv[] = {
4788 "git", "diff-files", "-z", NULL
4791 static const char *status_list_other_argv[] = {
4792 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4795 static const char *status_list_no_head_argv[] = {
4796 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4799 static const char *update_index_argv[] = {
4800 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4803 /* Restore the previous line number to stay in the context or select a
4804 * line with something that can be updated. */
4806 status_restore(struct view *view)
4808 if (view->p_lineno >= view->lines)
4809 view->p_lineno = view->lines - 1;
4810 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4812 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4815 /* If the above fails, always skip the "On branch" line. */
4816 if (view->p_lineno < view->lines)
4817 view->lineno = view->p_lineno;
4821 if (view->lineno < view->offset)
4822 view->offset = view->lineno;
4823 else if (view->offset + view->height <= view->lineno)
4824 view->offset = view->lineno - view->height + 1;
4826 view->p_restore = FALSE;
4830 status_update_onbranch(void)
4832 static const char *paths[][2] = {
4833 { "rebase-apply/rebasing", "Rebasing" },
4834 { "rebase-apply/applying", "Applying mailbox" },
4835 { "rebase-apply/", "Rebasing mailbox" },
4836 { "rebase-merge/interactive", "Interactive rebase" },
4837 { "rebase-merge/", "Rebase merge" },
4838 { "MERGE_HEAD", "Merging" },
4839 { "BISECT_LOG", "Bisecting" },
4840 { "HEAD", "On branch" },
4842 char buf[SIZEOF_STR];
4846 if (is_initial_commit()) {
4847 string_copy(status_onbranch, "Initial commit");
4851 for (i = 0; i < ARRAY_SIZE(paths); i++) {
4852 char *head = opt_head;
4854 if (!string_format(buf, "%s/%s", opt_git_dir, paths[i][0]) ||
4855 lstat(buf, &stat) < 0)
4861 if (string_format(buf, "%s/rebase-merge/head-name", opt_git_dir) &&
4862 io_open(&io, buf) &&
4863 io_read_buf(&io, buf, sizeof(buf))) {
4864 head = chomp_string(buf);
4865 if (!prefixcmp(head, "refs/heads/"))
4866 head += STRING_SIZE("refs/heads/");
4870 if (!string_format(status_onbranch, "%s %s", paths[i][1], head))
4871 string_copy(status_onbranch, opt_head);
4875 string_copy(status_onbranch, "Not currently on any branch");
4878 /* First parse staged info using git-diff-index(1), then parse unstaged
4879 * info using git-diff-files(1), and finally untracked files using
4880 * git-ls-files(1). */
4882 status_open(struct view *view)
4886 add_line_data(view, NULL, LINE_STAT_HEAD);
4887 status_update_onbranch();
4889 run_io_bg(update_index_argv);
4891 if (is_initial_commit()) {
4892 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4894 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4898 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4899 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4902 /* Restore the exact position or use the specialized restore
4904 if (!view->p_restore)
4905 status_restore(view);
4910 status_draw(struct view *view, struct line *line, unsigned int lineno)
4912 struct status *status = line->data;
4913 enum line_type type;
4917 switch (line->type) {
4918 case LINE_STAT_STAGED:
4919 type = LINE_STAT_SECTION;
4920 text = "Changes to be committed:";
4923 case LINE_STAT_UNSTAGED:
4924 type = LINE_STAT_SECTION;
4925 text = "Changed but not updated:";
4928 case LINE_STAT_UNTRACKED:
4929 type = LINE_STAT_SECTION;
4930 text = "Untracked files:";
4933 case LINE_STAT_NONE:
4934 type = LINE_DEFAULT;
4935 text = " (no files)";
4938 case LINE_STAT_HEAD:
4939 type = LINE_STAT_HEAD;
4940 text = status_onbranch;
4947 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4949 buf[0] = status->status;
4950 if (draw_text(view, line->type, buf, TRUE))
4952 type = LINE_DEFAULT;
4953 text = status->new.name;
4956 draw_text(view, type, text, TRUE);
4961 status_load_error(struct view *view, struct view *stage, const char *path)
4963 if (displayed_views() == 2 || display[current_view] != view)
4964 maximize_view(view);
4965 report("Failed to load '%s': %s", path, io_strerror(&stage->io));
4970 status_enter(struct view *view, struct line *line)
4972 struct status *status = line->data;
4973 const char *oldpath = status ? status->old.name : NULL;
4974 /* Diffs for unmerged entries are empty when passing the new
4975 * path, so leave it empty. */
4976 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4978 enum open_flags split;
4979 struct view *stage = VIEW(REQ_VIEW_STAGE);
4981 if (line->type == LINE_STAT_NONE ||
4982 (!status && line[1].type == LINE_STAT_NONE)) {
4983 report("No file to diff");
4987 switch (line->type) {
4988 case LINE_STAT_STAGED:
4989 if (is_initial_commit()) {
4990 const char *no_head_diff_argv[] = {
4991 "git", "diff", "--no-color", "--patch-with-stat",
4992 "--", "/dev/null", newpath, NULL
4995 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4996 return status_load_error(view, stage, newpath);
4998 const char *index_show_argv[] = {
4999 "git", "diff-index", "--root", "--patch-with-stat",
5000 "-C", "-M", "--cached", "HEAD", "--",
5001 oldpath, newpath, NULL
5004 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
5005 return status_load_error(view, stage, newpath);
5009 info = "Staged changes to %s";
5011 info = "Staged changes";
5014 case LINE_STAT_UNSTAGED:
5016 const char *files_show_argv[] = {
5017 "git", "diff-files", "--root", "--patch-with-stat",
5018 "-C", "-M", "--", oldpath, newpath, NULL
5021 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
5022 return status_load_error(view, stage, newpath);
5024 info = "Unstaged changes to %s";
5026 info = "Unstaged changes";
5029 case LINE_STAT_UNTRACKED:
5031 report("No file to show");
5035 if (!suffixcmp(status->new.name, -1, "/")) {
5036 report("Cannot display a directory");
5040 if (!prepare_update_file(stage, newpath))
5041 return status_load_error(view, stage, newpath);
5042 info = "Untracked file %s";
5045 case LINE_STAT_HEAD:
5049 die("line type %d not handled in switch", line->type);
5052 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
5053 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
5054 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
5056 stage_status = *status;
5058 memset(&stage_status, 0, sizeof(stage_status));
5061 stage_line_type = line->type;
5063 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
5070 status_exists(struct status *status, enum line_type type)
5072 struct view *view = VIEW(REQ_VIEW_STATUS);
5073 unsigned long lineno;
5075 for (lineno = 0; lineno < view->lines; lineno++) {
5076 struct line *line = &view->line[lineno];
5077 struct status *pos = line->data;
5079 if (line->type != type)
5081 if (!pos && (!status || !status->status) && line[1].data) {
5082 select_view_line(view, lineno);
5085 if (pos && !strcmp(status->new.name, pos->new.name)) {
5086 select_view_line(view, lineno);
5096 status_update_prepare(struct io *io, enum line_type type)
5098 const char *staged_argv[] = {
5099 "git", "update-index", "-z", "--index-info", NULL
5101 const char *others_argv[] = {
5102 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
5106 case LINE_STAT_STAGED:
5107 return run_io(io, staged_argv, opt_cdup, IO_WR);
5109 case LINE_STAT_UNSTAGED:
5110 return run_io(io, others_argv, opt_cdup, IO_WR);
5112 case LINE_STAT_UNTRACKED:
5113 return run_io(io, others_argv, NULL, IO_WR);
5116 die("line type %d not handled in switch", type);
5122 status_update_write(struct io *io, struct status *status, enum line_type type)
5124 char buf[SIZEOF_STR];
5128 case LINE_STAT_STAGED:
5129 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
5132 status->old.name, 0))
5136 case LINE_STAT_UNSTAGED:
5137 case LINE_STAT_UNTRACKED:
5138 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
5143 die("line type %d not handled in switch", type);
5146 return io_write(io, buf, bufsize);
5150 status_update_file(struct status *status, enum line_type type)
5155 if (!status_update_prepare(&io, type))
5158 result = status_update_write(&io, status, type);
5159 return done_io(&io) && result;
5163 status_update_files(struct view *view, struct line *line)
5165 char buf[sizeof(view->ref)];
5168 struct line *pos = view->line + view->lines;
5171 int cursor_y, cursor_x;
5173 if (!status_update_prepare(&io, line->type))
5176 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5179 string_copy(buf, view->ref);
5180 getsyx(cursor_y, cursor_x);
5181 for (file = 0, done = 5; result && file < files; line++, file++) {
5182 int almost_done = file * 100 / files;
5184 if (almost_done > done) {
5186 string_format(view->ref, "updating file %u of %u (%d%% done)",
5188 update_view_title(view);
5189 setsyx(cursor_y, cursor_x);
5192 result = status_update_write(&io, line->data, line->type);
5194 string_copy(view->ref, buf);
5196 return done_io(&io) && result;
5200 status_update(struct view *view)
5202 struct line *line = &view->line[view->lineno];
5204 assert(view->lines);
5207 /* This should work even for the "On branch" line. */
5208 if (line < view->line + view->lines && !line[1].data) {
5209 report("Nothing to update");
5213 if (!status_update_files(view, line + 1)) {
5214 report("Failed to update file status");
5218 } else if (!status_update_file(line->data, line->type)) {
5219 report("Failed to update file status");
5227 status_revert(struct status *status, enum line_type type, bool has_none)
5229 if (!status || type != LINE_STAT_UNSTAGED) {
5230 if (type == LINE_STAT_STAGED) {
5231 report("Cannot revert changes to staged files");
5232 } else if (type == LINE_STAT_UNTRACKED) {
5233 report("Cannot revert changes to untracked files");
5234 } else if (has_none) {
5235 report("Nothing to revert");
5237 report("Cannot revert changes to multiple files");
5242 char mode[10] = "100644";
5243 const char *reset_argv[] = {
5244 "git", "update-index", "--cacheinfo", mode,
5245 status->old.rev, status->old.name, NULL
5247 const char *checkout_argv[] = {
5248 "git", "checkout", "--", status->old.name, NULL
5251 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5253 string_format(mode, "%o", status->old.mode);
5254 return (status->status != 'U' || run_io_fg(reset_argv, opt_cdup)) &&
5255 run_io_fg(checkout_argv, opt_cdup);
5260 status_request(struct view *view, enum request request, struct line *line)
5262 struct status *status = line->data;
5265 case REQ_STATUS_UPDATE:
5266 if (!status_update(view))
5270 case REQ_STATUS_REVERT:
5271 if (!status_revert(status, line->type, status_has_none(view, line)))
5275 case REQ_STATUS_MERGE:
5276 if (!status || status->status != 'U') {
5277 report("Merging only possible for files with unmerged status ('U').");
5280 open_mergetool(status->new.name);
5286 if (status->status == 'D') {
5287 report("File has been deleted.");
5291 open_editor(status->status != '?', status->new.name);
5294 case REQ_VIEW_BLAME:
5296 string_copy(opt_file, status->new.name);
5302 /* After returning the status view has been split to
5303 * show the stage view. No further reloading is
5305 return status_enter(view, line);
5308 /* Simply reload the view. */
5315 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5321 status_select(struct view *view, struct line *line)
5323 struct status *status = line->data;
5324 char file[SIZEOF_STR] = "all files";
5328 if (status && !string_format(file, "'%s'", status->new.name))
5331 if (!status && line[1].type == LINE_STAT_NONE)
5334 switch (line->type) {
5335 case LINE_STAT_STAGED:
5336 text = "Press %s to unstage %s for commit";
5339 case LINE_STAT_UNSTAGED:
5340 text = "Press %s to stage %s for commit";
5343 case LINE_STAT_UNTRACKED:
5344 text = "Press %s to stage %s for addition";
5347 case LINE_STAT_HEAD:
5348 case LINE_STAT_NONE:
5349 text = "Nothing to update";
5353 die("line type %d not handled in switch", line->type);
5356 if (status && status->status == 'U') {
5357 text = "Press %s to resolve conflict in %s";
5358 key = get_key(REQ_STATUS_MERGE);
5361 key = get_key(REQ_STATUS_UPDATE);
5364 string_format(view->ref, text, key, file);
5368 status_grep(struct view *view, struct line *line)
5370 struct status *status = line->data;
5373 const char buf[2] = { status->status, 0 };
5374 const char *text[] = { status->new.name, buf, NULL };
5376 return grep_text(view, text);
5382 static struct view_ops status_ops = {
5395 stage_diff_write(struct io *io, struct line *line, struct line *end)
5397 while (line < end) {
5398 if (!io_write(io, line->data, strlen(line->data)) ||
5399 !io_write(io, "\n", 1))
5402 if (line->type == LINE_DIFF_CHUNK ||
5403 line->type == LINE_DIFF_HEADER)
5410 static struct line *
5411 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5413 for (; view->line < line; line--)
5414 if (line->type == type)
5421 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5423 const char *apply_argv[SIZEOF_ARG] = {
5424 "git", "apply", "--whitespace=nowarn", NULL
5426 struct line *diff_hdr;
5430 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5435 apply_argv[argc++] = "--cached";
5436 if (revert || stage_line_type == LINE_STAT_STAGED)
5437 apply_argv[argc++] = "-R";
5438 apply_argv[argc++] = "-";
5439 apply_argv[argc++] = NULL;
5440 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5443 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5444 !stage_diff_write(&io, chunk, view->line + view->lines))
5448 run_io_bg(update_index_argv);
5450 return chunk ? TRUE : FALSE;
5454 stage_update(struct view *view, struct line *line)
5456 struct line *chunk = NULL;
5458 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5459 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5462 if (!stage_apply_chunk(view, chunk, FALSE)) {
5463 report("Failed to apply chunk");
5467 } else if (!stage_status.status) {
5468 view = VIEW(REQ_VIEW_STATUS);
5470 for (line = view->line; line < view->line + view->lines; line++)
5471 if (line->type == stage_line_type)
5474 if (!status_update_files(view, line + 1)) {
5475 report("Failed to update files");
5479 } else if (!status_update_file(&stage_status, stage_line_type)) {
5480 report("Failed to update file");
5488 stage_revert(struct view *view, struct line *line)
5490 struct line *chunk = NULL;
5492 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5493 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5496 if (!prompt_yesno("Are you sure you want to revert changes?"))
5499 if (!stage_apply_chunk(view, chunk, TRUE)) {
5500 report("Failed to revert chunk");
5506 return status_revert(stage_status.status ? &stage_status : NULL,
5507 stage_line_type, FALSE);
5513 stage_next(struct view *view, struct line *line)
5517 if (!stage_chunks) {
5518 static size_t alloc = 0;
5521 for (line = view->line; line < view->line + view->lines; line++) {
5522 if (line->type != LINE_DIFF_CHUNK)
5525 tmp = realloc_items(stage_chunk, &alloc,
5526 stage_chunks, sizeof(*tmp));
5528 report("Allocation failure");
5533 stage_chunk[stage_chunks++] = line - view->line;
5537 for (i = 0; i < stage_chunks; i++) {
5538 if (stage_chunk[i] > view->lineno) {
5539 do_scroll_view(view, stage_chunk[i] - view->lineno);
5540 report("Chunk %d of %d", i + 1, stage_chunks);
5545 report("No next chunk found");
5549 stage_request(struct view *view, enum request request, struct line *line)
5552 case REQ_STATUS_UPDATE:
5553 if (!stage_update(view, line))
5557 case REQ_STATUS_REVERT:
5558 if (!stage_revert(view, line))
5562 case REQ_STAGE_NEXT:
5563 if (stage_line_type == LINE_STAT_UNTRACKED) {
5564 report("File is untracked; press %s to add",
5565 get_key(REQ_STATUS_UPDATE));
5568 stage_next(view, line);
5572 if (!stage_status.new.name[0])
5574 if (stage_status.status == 'D') {
5575 report("File has been deleted.");
5579 open_editor(stage_status.status != '?', stage_status.new.name);
5583 /* Reload everything ... */
5586 case REQ_VIEW_BLAME:
5587 if (stage_status.new.name[0]) {
5588 string_copy(opt_file, stage_status.new.name);
5594 return pager_request(view, request, line);
5600 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5601 open_view(view, REQ_VIEW_STATUS, OPEN_REFRESH);
5603 /* Check whether the staged entry still exists, and close the
5604 * stage view if it doesn't. */
5605 if (!status_exists(&stage_status, stage_line_type)) {
5606 status_restore(VIEW(REQ_VIEW_STATUS));
5607 return REQ_VIEW_CLOSE;
5610 if (stage_line_type == LINE_STAT_UNTRACKED) {
5611 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5612 report("Cannot display a directory");
5616 if (!prepare_update_file(view, stage_status.new.name)) {
5617 report("Failed to open file: %s", strerror(errno));
5621 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5626 static struct view_ops stage_ops = {
5643 char id[SIZEOF_REV]; /* SHA1 ID. */
5644 char title[128]; /* First line of the commit message. */
5645 const char *author; /* Author of the commit. */
5646 time_t time; /* Date from the author ident. */
5647 struct ref **refs; /* Repository references. */
5648 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5649 size_t graph_size; /* The width of the graph array. */
5650 bool has_parents; /* Rewritten --parents seen. */
5653 /* Size of rev graph with no "padding" columns */
5654 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5657 struct rev_graph *prev, *next, *parents;
5658 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5660 struct commit *commit;
5662 unsigned int boundary:1;
5665 /* Parents of the commit being visualized. */
5666 static struct rev_graph graph_parents[4];
5668 /* The current stack of revisions on the graph. */
5669 static struct rev_graph graph_stacks[4] = {
5670 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5671 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5672 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5673 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5677 graph_parent_is_merge(struct rev_graph *graph)
5679 return graph->parents->size > 1;
5683 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5685 struct commit *commit = graph->commit;
5687 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5688 commit->graph[commit->graph_size++] = symbol;
5692 clear_rev_graph(struct rev_graph *graph)
5694 graph->boundary = 0;
5695 graph->size = graph->pos = 0;
5696 graph->commit = NULL;
5697 memset(graph->parents, 0, sizeof(*graph->parents));
5701 done_rev_graph(struct rev_graph *graph)
5703 if (graph_parent_is_merge(graph) &&
5704 graph->pos < graph->size - 1 &&
5705 graph->next->size == graph->size + graph->parents->size - 1) {
5706 size_t i = graph->pos + graph->parents->size - 1;
5708 graph->commit->graph_size = i * 2;
5709 while (i < graph->next->size - 1) {
5710 append_to_rev_graph(graph, ' ');
5711 append_to_rev_graph(graph, '\\');
5716 clear_rev_graph(graph);
5720 push_rev_graph(struct rev_graph *graph, const char *parent)
5724 /* "Collapse" duplicate parents lines.
5726 * FIXME: This needs to also update update the drawn graph but
5727 * for now it just serves as a method for pruning graph lines. */
5728 for (i = 0; i < graph->size; i++)
5729 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5732 if (graph->size < SIZEOF_REVITEMS) {
5733 string_copy_rev(graph->rev[graph->size++], parent);
5738 get_rev_graph_symbol(struct rev_graph *graph)
5742 if (graph->boundary)
5743 symbol = REVGRAPH_BOUND;
5744 else if (graph->parents->size == 0)
5745 symbol = REVGRAPH_INIT;
5746 else if (graph_parent_is_merge(graph))
5747 symbol = REVGRAPH_MERGE;
5748 else if (graph->pos >= graph->size)
5749 symbol = REVGRAPH_BRANCH;
5751 symbol = REVGRAPH_COMMIT;
5757 draw_rev_graph(struct rev_graph *graph)
5760 chtype separator, line;
5762 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5763 static struct rev_filler fillers[] = {
5769 chtype symbol = get_rev_graph_symbol(graph);
5770 struct rev_filler *filler;
5773 if (opt_line_graphics)
5774 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5776 filler = &fillers[DEFAULT];
5778 for (i = 0; i < graph->pos; i++) {
5779 append_to_rev_graph(graph, filler->line);
5780 if (graph_parent_is_merge(graph->prev) &&
5781 graph->prev->pos == i)
5782 filler = &fillers[RSHARP];
5784 append_to_rev_graph(graph, filler->separator);
5787 /* Place the symbol for this revision. */
5788 append_to_rev_graph(graph, symbol);
5790 if (graph->prev->size > graph->size)
5791 filler = &fillers[RDIAG];
5793 filler = &fillers[DEFAULT];
5797 for (; i < graph->size; i++) {
5798 append_to_rev_graph(graph, filler->separator);
5799 append_to_rev_graph(graph, filler->line);
5800 if (graph_parent_is_merge(graph->prev) &&
5801 i < graph->prev->pos + graph->parents->size)
5802 filler = &fillers[RSHARP];
5803 if (graph->prev->size > graph->size)
5804 filler = &fillers[LDIAG];
5807 if (graph->prev->size > graph->size) {
5808 append_to_rev_graph(graph, filler->separator);
5809 if (filler->line != ' ')
5810 append_to_rev_graph(graph, filler->line);
5814 /* Prepare the next rev graph */
5816 prepare_rev_graph(struct rev_graph *graph)
5820 /* First, traverse all lines of revisions up to the active one. */
5821 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5822 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5825 push_rev_graph(graph->next, graph->rev[graph->pos]);
5828 /* Interleave the new revision parent(s). */
5829 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5830 push_rev_graph(graph->next, graph->parents->rev[i]);
5832 /* Lastly, put any remaining revisions. */
5833 for (i = graph->pos + 1; i < graph->size; i++)
5834 push_rev_graph(graph->next, graph->rev[i]);
5838 update_rev_graph(struct view *view, struct rev_graph *graph)
5840 /* If this is the finalizing update ... */
5842 prepare_rev_graph(graph);
5844 /* Graph visualization needs a one rev look-ahead,
5845 * so the first update doesn't visualize anything. */
5846 if (!graph->prev->commit)
5849 if (view->lines > 2)
5850 view->line[view->lines - 3].dirty = 1;
5851 if (view->lines > 1)
5852 view->line[view->lines - 2].dirty = 1;
5853 draw_rev_graph(graph->prev);
5854 done_rev_graph(graph->prev->prev);
5862 static const char *main_argv[SIZEOF_ARG] = {
5863 "git", "log", "--no-color", "--pretty=raw", "--parents",
5864 "--topo-order", "%(head)", NULL
5868 main_draw(struct view *view, struct line *line, unsigned int lineno)
5870 struct commit *commit = line->data;
5872 if (!commit->author)
5875 if (opt_date && draw_date(view, &commit->time))
5878 if (opt_author && draw_author(view, commit->author))
5881 if (opt_rev_graph && commit->graph_size &&
5882 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5885 if (opt_show_refs && commit->refs) {
5889 enum line_type type;
5891 if (commit->refs[i]->head)
5892 type = LINE_MAIN_HEAD;
5893 else if (commit->refs[i]->ltag)
5894 type = LINE_MAIN_LOCAL_TAG;
5895 else if (commit->refs[i]->tag)
5896 type = LINE_MAIN_TAG;
5897 else if (commit->refs[i]->tracked)
5898 type = LINE_MAIN_TRACKED;
5899 else if (commit->refs[i]->remote)
5900 type = LINE_MAIN_REMOTE;
5902 type = LINE_MAIN_REF;
5904 if (draw_text(view, type, "[", TRUE) ||
5905 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5906 draw_text(view, type, "]", TRUE))
5909 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5911 } while (commit->refs[i++]->next);
5914 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5918 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5920 main_read(struct view *view, char *line)
5922 static struct rev_graph *graph = graph_stacks;
5923 enum line_type type;
5924 struct commit *commit;
5929 if (!view->lines && !view->parent)
5930 die("No revisions match the given arguments.");
5931 if (view->lines > 0) {
5932 commit = view->line[view->lines - 1].data;
5933 view->line[view->lines - 1].dirty = 1;
5934 if (!commit->author) {
5937 graph->commit = NULL;
5940 update_rev_graph(view, graph);
5942 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5943 clear_rev_graph(&graph_stacks[i]);
5947 type = get_line_type(line);
5948 if (type == LINE_COMMIT) {
5949 commit = calloc(1, sizeof(struct commit));
5953 line += STRING_SIZE("commit ");
5955 graph->boundary = 1;
5959 string_copy_rev(commit->id, line);
5960 commit->refs = get_refs(commit->id);
5961 graph->commit = commit;
5962 add_line_data(view, commit, LINE_MAIN_COMMIT);
5964 while ((line = strchr(line, ' '))) {
5966 push_rev_graph(graph->parents, line);
5967 commit->has_parents = TRUE;
5974 commit = view->line[view->lines - 1].data;
5978 if (commit->has_parents)
5980 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5984 parse_author_line(line + STRING_SIZE("author "),
5985 &commit->author, &commit->time);
5986 update_rev_graph(view, graph);
5987 graph = graph->next;
5991 /* Fill in the commit title if it has not already been set. */
5992 if (commit->title[0])
5995 /* Require titles to start with a non-space character at the
5996 * offset used by git log. */
5997 if (strncmp(line, " ", 4))
6000 /* Well, if the title starts with a whitespace character,
6001 * try to be forgiving. Otherwise we end up with no title. */
6002 while (isspace(*line))
6006 /* FIXME: More graceful handling of titles; append "..." to
6007 * shortened titles, etc. */
6009 string_expand(commit->title, sizeof(commit->title), line, 1);
6010 view->line[view->lines - 1].dirty = 1;
6017 main_request(struct view *view, enum request request, struct line *line)
6019 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
6023 open_view(view, REQ_VIEW_DIFF, flags);
6027 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
6037 grep_refs(struct ref **refs, regex_t *regex)
6042 if (!opt_show_refs || !refs)
6045 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
6047 } while (refs[i++]->next);
6053 main_grep(struct view *view, struct line *line)
6055 struct commit *commit = line->data;
6056 const char *text[] = {
6058 opt_author ? commit->author : "",
6059 opt_date ? mkdate(&commit->time) : "",
6063 return grep_text(view, text) || grep_refs(commit->refs, view->regex);
6067 main_select(struct view *view, struct line *line)
6069 struct commit *commit = line->data;
6071 string_copy_rev(view->ref, commit->id);
6072 string_copy_rev(ref_commit, view->ref);
6075 static struct view_ops main_ops = {
6088 * Unicode / UTF-8 handling
6090 * NOTE: Much of the following code for dealing with Unicode is derived from
6091 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
6092 * src/intl/charset.c from the UTF-8 branch commit elinks-0.11.0-g31f2c28.
6096 unicode_width(unsigned long c)
6099 (c <= 0x115f /* Hangul Jamo */
6102 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
6104 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
6105 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
6106 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
6107 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
6108 || (c >= 0xffe0 && c <= 0xffe6)
6109 || (c >= 0x20000 && c <= 0x2fffd)
6110 || (c >= 0x30000 && c <= 0x3fffd)))
6114 return opt_tab_size;
6119 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
6120 * Illegal bytes are set one. */
6121 static const unsigned char utf8_bytes[256] = {
6122 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,
6123 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,
6124 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,
6125 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,
6126 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,
6127 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,
6128 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,
6129 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,
6132 /* Decode UTF-8 multi-byte representation into a Unicode character. */
6133 static inline unsigned long
6134 utf8_to_unicode(const char *string, size_t length)
6136 unsigned long unicode;
6140 unicode = string[0];
6143 unicode = (string[0] & 0x1f) << 6;
6144 unicode += (string[1] & 0x3f);
6147 unicode = (string[0] & 0x0f) << 12;
6148 unicode += ((string[1] & 0x3f) << 6);
6149 unicode += (string[2] & 0x3f);
6152 unicode = (string[0] & 0x0f) << 18;
6153 unicode += ((string[1] & 0x3f) << 12);
6154 unicode += ((string[2] & 0x3f) << 6);
6155 unicode += (string[3] & 0x3f);
6158 unicode = (string[0] & 0x0f) << 24;
6159 unicode += ((string[1] & 0x3f) << 18);
6160 unicode += ((string[2] & 0x3f) << 12);
6161 unicode += ((string[3] & 0x3f) << 6);
6162 unicode += (string[4] & 0x3f);
6165 unicode = (string[0] & 0x01) << 30;
6166 unicode += ((string[1] & 0x3f) << 24);
6167 unicode += ((string[2] & 0x3f) << 18);
6168 unicode += ((string[3] & 0x3f) << 12);
6169 unicode += ((string[4] & 0x3f) << 6);
6170 unicode += (string[5] & 0x3f);
6173 die("Invalid Unicode length");
6176 /* Invalid characters could return the special 0xfffd value but NUL
6177 * should be just as good. */
6178 return unicode > 0xffff ? 0 : unicode;
6181 /* Calculates how much of string can be shown within the given maximum width
6182 * and sets trimmed parameter to non-zero value if all of string could not be
6183 * shown. If the reserve flag is TRUE, it will reserve at least one
6184 * trailing character, which can be useful when drawing a delimiter.
6186 * Returns the number of bytes to output from string to satisfy max_width. */
6188 utf8_length(const char **start, size_t skip, int *width, size_t max_width, int *trimmed, bool reserve)
6190 const char *string = *start;
6191 const char *end = strchr(string, '\0');
6192 unsigned char last_bytes = 0;
6193 size_t last_ucwidth = 0;
6198 while (string < end) {
6199 int c = *(unsigned char *) string;
6200 unsigned char bytes = utf8_bytes[c];
6202 unsigned long unicode;
6204 if (string + bytes > end)
6207 /* Change representation to figure out whether
6208 * it is a single- or double-width character. */
6210 unicode = utf8_to_unicode(string, bytes);
6211 /* FIXME: Graceful handling of invalid Unicode character. */
6215 ucwidth = unicode_width(unicode);
6217 skip -= ucwidth <= skip ? ucwidth : skip;
6221 if (*width > max_width) {
6224 if (reserve && *width == max_width) {
6225 string -= last_bytes;
6226 *width -= last_ucwidth;
6232 last_bytes = ucwidth ? bytes : 0;
6233 last_ucwidth = ucwidth;
6236 return string - *start;
6244 /* Whether or not the curses interface has been initialized. */
6245 static bool cursed = FALSE;
6247 /* Terminal hacks and workarounds. */
6248 static bool use_scroll_redrawwin;
6249 static bool use_scroll_status_wclear;
6251 /* The status window is used for polling keystrokes. */
6252 static WINDOW *status_win;
6254 /* Reading from the prompt? */
6255 static bool input_mode = FALSE;
6257 static bool status_empty = FALSE;
6259 /* Update status and title window. */
6261 report(const char *msg, ...)
6263 struct view *view = display[current_view];
6269 char buf[SIZEOF_STR];
6272 va_start(args, msg);
6273 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6274 buf[sizeof(buf) - 1] = 0;
6275 buf[sizeof(buf) - 2] = '.';
6276 buf[sizeof(buf) - 3] = '.';
6277 buf[sizeof(buf) - 4] = '.';
6283 if (!status_empty || *msg) {
6286 va_start(args, msg);
6288 wmove(status_win, 0, 0);
6289 if (view->has_scrolled && use_scroll_status_wclear)
6292 vwprintw(status_win, msg, args);
6293 status_empty = FALSE;
6295 status_empty = TRUE;
6297 wclrtoeol(status_win);
6298 wnoutrefresh(status_win);
6303 update_view_title(view);
6306 /* Controls when nodelay should be in effect when polling user input. */
6308 set_nonblocking_input(bool loading)
6310 static unsigned int loading_views;
6312 if ((loading == FALSE && loading_views-- == 1) ||
6313 (loading == TRUE && loading_views++ == 0))
6314 nodelay(status_win, loading);
6323 /* Initialize the curses library */
6324 if (isatty(STDIN_FILENO)) {
6325 cursed = !!initscr();
6328 /* Leave stdin and stdout alone when acting as a pager. */
6329 opt_tty = fopen("/dev/tty", "r+");
6331 die("Failed to open /dev/tty");
6332 cursed = !!newterm(NULL, opt_tty, opt_tty);
6336 die("Failed to initialize curses");
6338 nonl(); /* Disable conversion and detect newlines from input. */
6339 cbreak(); /* Take input chars one at a time, no wait for \n */
6340 noecho(); /* Don't echo input */
6341 leaveok(stdscr, FALSE);
6346 getmaxyx(stdscr, y, x);
6347 status_win = newwin(1, 0, y - 1, 0);
6349 die("Failed to create status window");
6351 /* Enable keyboard mapping */
6352 keypad(status_win, TRUE);
6353 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6355 TABSIZE = opt_tab_size;
6356 if (opt_line_graphics) {
6357 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6360 term = getenv("XTERM_VERSION") ? NULL : getenv("COLORTERM");
6361 if (term && !strcmp(term, "gnome-terminal")) {
6362 /* In the gnome-terminal-emulator, the message from
6363 * scrolling up one line when impossible followed by
6364 * scrolling down one line causes corruption of the
6365 * status line. This is fixed by calling wclear. */
6366 use_scroll_status_wclear = TRUE;
6367 use_scroll_redrawwin = FALSE;
6369 } else if (term && !strcmp(term, "xrvt-xpm")) {
6370 /* No problems with full optimizations in xrvt-(unicode)
6372 use_scroll_status_wclear = use_scroll_redrawwin = FALSE;
6375 /* When scrolling in (u)xterm the last line in the
6376 * scrolling direction will update slowly. */
6377 use_scroll_redrawwin = TRUE;
6378 use_scroll_status_wclear = FALSE;
6383 get_input(int prompt_position)
6386 int i, key, cursor_y, cursor_x;
6388 if (prompt_position)
6392 foreach_view (view, i) {
6394 if (view_is_displayed(view) && view->has_scrolled &&
6395 use_scroll_redrawwin)
6396 redrawwin(view->win);
6397 view->has_scrolled = FALSE;
6400 /* Update the cursor position. */
6401 if (prompt_position) {
6402 getbegyx(status_win, cursor_y, cursor_x);
6403 cursor_x = prompt_position;
6405 view = display[current_view];
6406 getbegyx(view->win, cursor_y, cursor_x);
6407 cursor_x = view->width - 1;
6408 cursor_y += view->lineno - view->offset;
6410 setsyx(cursor_y, cursor_x);
6412 /* Refresh, accept single keystroke of input */
6414 key = wgetch(status_win);
6416 /* wgetch() with nodelay() enabled returns ERR when
6417 * there's no input. */
6420 } else if (key == KEY_RESIZE) {
6423 getmaxyx(stdscr, height, width);
6425 wresize(status_win, 1, width);
6426 mvwin(status_win, height - 1, 0);
6427 wnoutrefresh(status_win);
6429 redraw_display(TRUE);
6439 prompt_input(const char *prompt, input_handler handler, void *data)
6441 enum input_status status = INPUT_OK;
6442 static char buf[SIZEOF_STR];
6447 while (status == INPUT_OK || status == INPUT_SKIP) {
6450 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6451 wclrtoeol(status_win);
6453 key = get_input(pos + 1);
6458 status = pos ? INPUT_STOP : INPUT_CANCEL;
6465 status = INPUT_CANCEL;
6469 status = INPUT_CANCEL;
6473 if (pos >= sizeof(buf)) {
6474 report("Input string too long");
6478 status = handler(data, buf, key);
6479 if (status == INPUT_OK)
6480 buf[pos++] = (char) key;
6484 /* Clear the status window */
6485 status_empty = FALSE;
6488 if (status == INPUT_CANCEL)
6496 static enum input_status
6497 prompt_yesno_handler(void *data, char *buf, int c)
6499 if (c == 'y' || c == 'Y')
6501 if (c == 'n' || c == 'N')
6502 return INPUT_CANCEL;
6507 prompt_yesno(const char *prompt)
6509 char prompt2[SIZEOF_STR];
6511 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6514 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6517 static enum input_status
6518 read_prompt_handler(void *data, char *buf, int c)
6520 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6524 read_prompt(const char *prompt)
6526 return prompt_input(prompt, read_prompt_handler, NULL);
6530 * Repository properties
6533 static struct ref *refs = NULL;
6534 static size_t refs_alloc = 0;
6535 static size_t refs_size = 0;
6537 /* Id <-> ref store */
6538 static struct ref ***id_refs = NULL;
6539 static size_t id_refs_alloc = 0;
6540 static size_t id_refs_size = 0;
6543 compare_refs(const void *ref1_, const void *ref2_)
6545 const struct ref *ref1 = *(const struct ref **)ref1_;
6546 const struct ref *ref2 = *(const struct ref **)ref2_;
6548 if (ref1->tag != ref2->tag)
6549 return ref2->tag - ref1->tag;
6550 if (ref1->ltag != ref2->ltag)
6551 return ref2->ltag - ref2->ltag;
6552 if (ref1->head != ref2->head)
6553 return ref2->head - ref1->head;
6554 if (ref1->tracked != ref2->tracked)
6555 return ref2->tracked - ref1->tracked;
6556 if (ref1->remote != ref2->remote)
6557 return ref2->remote - ref1->remote;
6558 return strcmp(ref1->name, ref2->name);
6561 static struct ref **
6562 get_refs(const char *id)
6564 struct ref ***tmp_id_refs;
6565 struct ref **ref_list = NULL;
6566 size_t ref_list_alloc = 0;
6567 size_t ref_list_size = 0;
6570 for (i = 0; i < id_refs_size; i++)
6571 if (!strcmp(id, id_refs[i][0]->id))
6574 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6579 id_refs = tmp_id_refs;
6581 for (i = 0; i < refs_size; i++) {
6584 if (strcmp(id, refs[i].id))
6587 tmp = realloc_items(ref_list, &ref_list_alloc,
6588 ref_list_size + 1, sizeof(*ref_list));
6596 ref_list[ref_list_size] = &refs[i];
6597 /* XXX: The properties of the commit chains ensures that we can
6598 * safely modify the shared ref. The repo references will
6599 * always be similar for the same id. */
6600 ref_list[ref_list_size]->next = 1;
6606 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6607 ref_list[ref_list_size - 1]->next = 0;
6608 id_refs[id_refs_size++] = ref_list;
6615 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6620 bool remote = FALSE;
6621 bool tracked = FALSE;
6622 bool check_replace = FALSE;
6625 if (!prefixcmp(name, "refs/tags/")) {
6626 if (!suffixcmp(name, namelen, "^{}")) {
6629 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6630 check_replace = TRUE;
6636 namelen -= STRING_SIZE("refs/tags/");
6637 name += STRING_SIZE("refs/tags/");
6639 } else if (!prefixcmp(name, "refs/remotes/")) {
6641 namelen -= STRING_SIZE("refs/remotes/");
6642 name += STRING_SIZE("refs/remotes/");
6643 tracked = !strcmp(opt_remote, name);
6645 } else if (!prefixcmp(name, "refs/heads/")) {
6646 namelen -= STRING_SIZE("refs/heads/");
6647 name += STRING_SIZE("refs/heads/");
6648 head = !strncmp(opt_head, name, namelen);
6650 } else if (!strcmp(name, "HEAD")) {
6651 string_ncopy(opt_head_rev, id, idlen);
6655 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6656 /* it's an annotated tag, replace the previous SHA1 with the
6657 * resolved commit id; relies on the fact git-ls-remote lists
6658 * the commit id of an annotated tag right before the commit id
6660 refs[refs_size - 1].ltag = ltag;
6661 string_copy_rev(refs[refs_size - 1].id, id);
6665 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6669 ref = &refs[refs_size++];
6670 ref->name = malloc(namelen + 1);
6674 strncpy(ref->name, name, namelen);
6675 ref->name[namelen] = 0;
6679 ref->remote = remote;
6680 ref->tracked = tracked;
6681 string_copy_rev(ref->id, id);
6689 static const char *ls_remote_argv[SIZEOF_ARG] = {
6690 "git", "ls-remote", opt_git_dir, NULL
6692 static bool init = FALSE;
6695 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6702 while (refs_size > 0)
6703 free(refs[--refs_size].name);
6704 while (id_refs_size > 0)
6705 free(id_refs[--id_refs_size]);
6707 return run_io_load(ls_remote_argv, "\t", read_ref);
6711 set_remote_branch(const char *name, const char *value, size_t valuelen)
6713 if (!strcmp(name, ".remote")) {
6714 string_ncopy(opt_remote, value, valuelen);
6716 } else if (*opt_remote && !strcmp(name, ".merge")) {
6717 size_t from = strlen(opt_remote);
6719 if (!prefixcmp(value, "refs/heads/"))
6720 value += STRING_SIZE("refs/heads/");
6722 if (!string_format_from(opt_remote, &from, "/%s", value))
6728 set_repo_config_option(char *name, char *value, int (*cmd)(int, const char **))
6730 const char *argv[SIZEOF_ARG] = { name, "=" };
6731 int argc = 1 + (cmd == option_set_command);
6734 if (!argv_from_string(argv, &argc, value))
6735 config_msg = "Too many option arguments";
6737 error = cmd(argc, argv);
6740 warn("Option 'tig.%s': %s", name, config_msg);
6744 set_environment_variable(const char *name, const char *value)
6746 size_t len = strlen(name) + 1 + strlen(value) + 1;
6747 char *env = malloc(len);
6750 string_nformat(env, len, NULL, "%s=%s", name, value) &&
6758 set_work_tree(const char *value)
6760 char cwd[SIZEOF_STR];
6762 if (!getcwd(cwd, sizeof(cwd)))
6763 die("Failed to get cwd path: %s", strerror(errno));
6764 if (chdir(opt_git_dir) < 0)
6765 die("Failed to chdir(%s): %s", strerror(errno));
6766 if (!getcwd(opt_git_dir, sizeof(opt_git_dir)))
6767 die("Failed to get git path: %s", strerror(errno));
6769 die("Failed to chdir(%s): %s", cwd, strerror(errno));
6770 if (chdir(value) < 0)
6771 die("Failed to chdir(%s): %s", value, strerror(errno));
6772 if (!getcwd(cwd, sizeof(cwd)))
6773 die("Failed to get cwd path: %s", strerror(errno));
6774 if (!set_environment_variable("GIT_WORK_TREE", cwd))
6775 die("Failed to set GIT_WORK_TREE to '%s'", cwd);
6776 if (!set_environment_variable("GIT_DIR", opt_git_dir))
6777 die("Failed to set GIT_DIR to '%s'", opt_git_dir);
6778 opt_is_inside_work_tree = TRUE;
6782 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6784 if (!strcmp(name, "i18n.commitencoding"))
6785 string_ncopy(opt_encoding, value, valuelen);
6787 else if (!strcmp(name, "core.editor"))
6788 string_ncopy(opt_editor, value, valuelen);
6790 else if (!strcmp(name, "core.worktree"))
6791 set_work_tree(value);
6793 else if (!prefixcmp(name, "tig.color."))
6794 set_repo_config_option(name + 10, value, option_color_command);
6796 else if (!prefixcmp(name, "tig.bind."))
6797 set_repo_config_option(name + 9, value, option_bind_command);
6799 else if (!prefixcmp(name, "tig."))
6800 set_repo_config_option(name + 4, value, option_set_command);
6802 else if (*opt_head && !prefixcmp(name, "branch.") &&
6803 !strncmp(name + 7, opt_head, strlen(opt_head)))
6804 set_remote_branch(name + 7 + strlen(opt_head), value, valuelen);
6810 load_git_config(void)
6812 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6814 return run_io_load(config_list_argv, "=", read_repo_config_option);
6818 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6820 if (!opt_git_dir[0]) {
6821 string_ncopy(opt_git_dir, name, namelen);
6823 } else if (opt_is_inside_work_tree == -1) {
6824 /* This can be 3 different values depending on the
6825 * version of git being used. If git-rev-parse does not
6826 * understand --is-inside-work-tree it will simply echo
6827 * the option else either "true" or "false" is printed.
6828 * Default to true for the unknown case. */
6829 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6831 } else if (*name == '.') {
6832 string_ncopy(opt_cdup, name, namelen);
6835 string_ncopy(opt_prefix, name, namelen);
6842 load_repo_info(void)
6844 const char *head_argv[] = {
6845 "git", "symbolic-ref", "HEAD", NULL
6847 const char *rev_parse_argv[] = {
6848 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6849 "--show-cdup", "--show-prefix", NULL
6852 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6853 chomp_string(opt_head);
6854 if (!prefixcmp(opt_head, "refs/heads/")) {
6855 char *offset = opt_head + STRING_SIZE("refs/heads/");
6857 memmove(opt_head, offset, strlen(offset) + 1);
6861 return run_io_load(rev_parse_argv, "=", read_repo_info);
6869 static const char usage[] =
6870 "tig " TIG_VERSION " (" __DATE__ ")\n"
6872 "Usage: tig [options] [revs] [--] [paths]\n"
6873 " or: tig show [options] [revs] [--] [paths]\n"
6874 " or: tig blame [rev] path\n"
6876 " or: tig < [git command output]\n"
6879 " -v, --version Show version and exit\n"
6880 " -h, --help Show help message and exit";
6882 static void __NORETURN
6885 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6891 static void __NORETURN
6892 die(const char *err, ...)
6898 va_start(args, err);
6899 fputs("tig: ", stderr);
6900 vfprintf(stderr, err, args);
6901 fputs("\n", stderr);
6908 warn(const char *msg, ...)
6912 va_start(args, msg);
6913 fputs("tig warning: ", stderr);
6914 vfprintf(stderr, msg, args);
6915 fputs("\n", stderr);
6920 parse_options(int argc, const char *argv[])
6922 enum request request = REQ_VIEW_MAIN;
6923 const char *subcommand;
6924 bool seen_dashdash = FALSE;
6925 /* XXX: This is vulnerable to the user overriding options
6926 * required for the main view parser. */
6927 const char *custom_argv[SIZEOF_ARG] = {
6928 "git", "log", "--no-color", "--pretty=raw", "--parents",
6929 "--topo-order", NULL
6933 if (!isatty(STDIN_FILENO)) {
6934 io_open(&VIEW(REQ_VIEW_PAGER)->io, "");
6935 return REQ_VIEW_PAGER;
6941 subcommand = argv[1];
6942 if (!strcmp(subcommand, "status")) {
6944 warn("ignoring arguments after `%s'", subcommand);
6945 return REQ_VIEW_STATUS;
6947 } else if (!strcmp(subcommand, "blame")) {
6948 if (argc <= 2 || argc > 4)
6949 die("invalid number of options to blame\n\n%s", usage);
6953 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
6957 string_ncopy(opt_file, argv[i], strlen(argv[i]));
6958 return REQ_VIEW_BLAME;
6960 } else if (!strcmp(subcommand, "show")) {
6961 request = REQ_VIEW_DIFF;
6968 custom_argv[1] = subcommand;
6972 for (i = 1 + !!subcommand; i < argc; i++) {
6973 const char *opt = argv[i];
6975 if (seen_dashdash || !strcmp(opt, "--")) {
6976 seen_dashdash = TRUE;
6978 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
6979 printf("tig version %s\n", TIG_VERSION);
6982 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
6983 printf("%s\n", usage);
6987 custom_argv[j++] = opt;
6988 if (j >= ARRAY_SIZE(custom_argv))
6989 die("command too long");
6992 if (!prepare_update(VIEW(request), custom_argv, NULL, FORMAT_NONE))
6993 die("Failed to format arguments");
6999 main(int argc, const char *argv[])
7001 enum request request = parse_options(argc, argv);
7005 signal(SIGINT, quit);
7006 signal(SIGPIPE, SIG_IGN);
7008 if (setlocale(LC_ALL, "")) {
7009 char *codeset = nl_langinfo(CODESET);
7011 string_ncopy(opt_codeset, codeset, strlen(codeset));
7014 if (load_repo_info() == ERR)
7015 die("Failed to load repo info.");
7017 if (load_options() == ERR)
7018 die("Failed to load user config.");
7020 if (load_git_config() == ERR)
7021 die("Failed to load repo config.");
7023 /* Require a git repository unless when running in pager mode. */
7024 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
7025 die("Not a git repository");
7027 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
7030 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
7031 opt_iconv = iconv_open(opt_codeset, opt_encoding);
7032 if (opt_iconv == ICONV_NONE)
7033 die("Failed to initialize character set conversion");
7036 if (load_refs() == ERR)
7037 die("Failed to load refs.");
7039 foreach_view (view, i)
7040 argv_from_env(view->ops->argv, view->cmd_env);
7044 if (request != REQ_NONE)
7045 open_view(NULL, request, OPEN_PREPARED);
7046 request = request == REQ_NONE ? REQ_VIEW_MAIN : REQ_NONE;
7048 while (view_driver(display[current_view], request)) {
7049 int key = get_input(0);
7051 view = display[current_view];
7052 request = get_keybinding(view->keymap, key);
7054 /* Some low-level request handling. This keeps access to
7055 * status_win restricted. */
7059 char *cmd = read_prompt(":");
7061 if (cmd && isdigit(*cmd)) {
7062 int lineno = view->lineno + 1;
7064 if (parse_int(&lineno, cmd, 1, view->lines + 1) == OK) {
7065 select_view_line(view, lineno - 1);
7068 report("Unable to parse '%s' as a line number", cmd);
7072 struct view *next = VIEW(REQ_VIEW_PAGER);
7073 const char *argv[SIZEOF_ARG] = { "git" };
7076 /* When running random commands, initially show the
7077 * command in the title. However, it maybe later be
7078 * overwritten if a commit line is selected. */
7079 string_ncopy(next->ref, cmd, strlen(cmd));
7081 if (!argv_from_string(argv, &argc, cmd)) {
7082 report("Too many arguments");
7083 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
7084 report("Failed to format command");
7086 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
7094 case REQ_SEARCH_BACK:
7096 const char *prompt = request == REQ_SEARCH ? "/" : "?";
7097 char *search = read_prompt(prompt);
7100 string_ncopy(opt_search, search, strlen(search));
7101 else if (*opt_search)
7102 request = request == REQ_SEARCH ?