1 /* Copyright (c) 2006-2009 Jonas Fonseca <fonseca@diku.dk>
3 * This program is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU General Public License as
5 * published by the Free Software Foundation; either version 2 of
6 * the License, or (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
19 #define TIG_VERSION "unknown-version"
34 #include <sys/types.h>
37 #include <sys/select.h>
48 /* ncurses(3): Must be defined to have extended wide-character functions. */
49 #define _XOPEN_SOURCE_EXTENDED
51 #ifdef HAVE_NCURSESW_NCURSES_H
52 #include <ncursesw/ncurses.h>
54 #ifdef HAVE_NCURSES_NCURSES_H
55 #include <ncurses/ncurses.h>
62 #define __NORETURN __attribute__((__noreturn__))
67 static void __NORETURN die(const char *err, ...);
68 static void warn(const char *msg, ...);
69 static void report(const char *msg, ...);
70 static void set_nonblocking_input(bool loading);
71 static int load_refs(void);
72 static size_t utf8_length(const char **string, size_t col, int *width, size_t max_width, int *trimmed, bool reserve);
74 #define ABS(x) ((x) >= 0 ? (x) : -(x))
75 #define MIN(x, y) ((x) < (y) ? (x) : (y))
77 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
78 #define STRING_SIZE(x) (sizeof(x) - 1)
80 #define SIZEOF_STR 1024 /* Default string size. */
81 #define SIZEOF_REF 256 /* Size of symbolic or SHA1 ID. */
82 #define SIZEOF_REV 41 /* Holds a SHA-1 and an ending NUL. */
83 #define SIZEOF_ARG 32 /* Default argument array size. */
87 #define REVGRAPH_INIT 'I'
88 #define REVGRAPH_MERGE 'M'
89 #define REVGRAPH_BRANCH '+'
90 #define REVGRAPH_COMMIT '*'
91 #define REVGRAPH_BOUND '^'
93 #define SIZEOF_REVGRAPH 19 /* Size of revision ancestry graphics. */
95 /* This color name can be used to refer to the default term colors. */
96 #define COLOR_DEFAULT (-1)
98 #define ICONV_NONE ((iconv_t) -1)
100 #define ICONV_CONST /* nothing */
103 /* The format and size of the date column in the main view. */
104 #define DATE_FORMAT "%Y-%m-%d %H:%M"
105 #define DATE_COLS STRING_SIZE("2006-04-29 14:21 ")
107 #define AUTHOR_COLS 20
110 /* The default interval between line numbers. */
111 #define NUMBER_INTERVAL 5
112 #define SCROLL_INTERVAL 1
116 #define SCALE_SPLIT_VIEW(height) ((height) * 2 / 3)
118 #define NULL_ID "0000000000000000000000000000000000000000"
121 #define GIT_CONFIG "config"
124 /* Some ASCII-shorthands fitted into the ncurses namespace. */
126 #define KEY_RETURN '\r'
131 char *name; /* Ref name; tag or head names are shortened. */
132 char id[SIZEOF_REV]; /* Commit SHA1 ID */
133 unsigned int head:1; /* Is it the current HEAD? */
134 unsigned int tag:1; /* Is it a tag? */
135 unsigned int ltag:1; /* If so, is the tag local? */
136 unsigned int remote:1; /* Is it a remote ref? */
137 unsigned int tracked:1; /* Is it the remote for the current HEAD? */
138 unsigned int next:1; /* For ref lists: are there more refs? */
141 static struct ref **get_refs(const char *id);
144 FORMAT_ALL, /* Perform replacement in all arguments. */
145 FORMAT_DASH, /* Perform replacement up until "--". */
146 FORMAT_NONE /* No replacement should be performed. */
149 static bool format_argv(const char *dst[], const char *src[], enum format_flags flags);
158 typedef enum input_status (*input_handler)(void *data, char *buf, int c);
160 static char *prompt_input(const char *prompt, input_handler handler, void *data);
161 static bool prompt_yesno(const char *prompt);
168 string_ncopy_do(char *dst, size_t dstlen, const char *src, size_t srclen)
170 if (srclen > dstlen - 1)
173 strncpy(dst, src, srclen);
177 /* Shorthands for safely copying into a fixed buffer. */
179 #define string_copy(dst, src) \
180 string_ncopy_do(dst, sizeof(dst), src, sizeof(src))
182 #define string_ncopy(dst, src, srclen) \
183 string_ncopy_do(dst, sizeof(dst), src, srclen)
185 #define string_copy_rev(dst, src) \
186 string_ncopy_do(dst, SIZEOF_REV, src, SIZEOF_REV - 1)
188 #define string_add(dst, from, src) \
189 string_ncopy_do(dst + (from), sizeof(dst) - (from), src, sizeof(src))
192 string_expand_length(const char *line, int tabsize)
196 for (size = pos = 0; line[pos]; pos++) {
197 if (line[pos] == '\t' && tabsize > 0)
198 size += tabsize - (size % tabsize);
206 string_expand(char *dst, size_t dstlen, const char *src, int tabsize)
210 for (size = pos = 0; size < dstlen - 1 && src[pos]; pos++) {
211 if (src[pos] == '\t') {
212 size_t expanded = tabsize - (size % tabsize);
214 if (expanded + size >= dstlen - 1)
215 expanded = dstlen - size - 1;
216 memcpy(dst + size, " ", expanded);
219 dst[size++] = src[pos];
227 chomp_string(char *name)
231 while (isspace(*name))
234 namelen = strlen(name) - 1;
235 while (namelen > 0 && isspace(name[namelen]))
242 string_nformat(char *buf, size_t bufsize, size_t *bufpos, const char *fmt, ...)
245 size_t pos = bufpos ? *bufpos : 0;
248 pos += vsnprintf(buf + pos, bufsize - pos, fmt, args);
254 return pos >= bufsize ? FALSE : TRUE;
257 #define string_format(buf, fmt, args...) \
258 string_nformat(buf, sizeof(buf), NULL, fmt, args)
260 #define string_format_from(buf, from, fmt, args...) \
261 string_nformat(buf, sizeof(buf), from, fmt, args)
264 string_enum_compare(const char *str1, const char *str2, int len)
268 #define string_enum_sep(x) ((x) == '-' || (x) == '_' || (x) == '.')
270 /* Diff-Header == DIFF_HEADER */
271 for (i = 0; i < len; i++) {
272 if (toupper(str1[i]) == toupper(str2[i]))
275 if (string_enum_sep(str1[i]) &&
276 string_enum_sep(str2[i]))
279 return str1[i] - str2[i];
291 #define ENUM_MAP(name, value) { name, STRING_SIZE(name), value }
294 map_enum_do(struct enum_map *map, size_t map_size, int *value, const char *name)
296 size_t namelen = strlen(name);
299 for (i = 0; i < map_size; i++)
300 if (namelen == map[i].namelen &&
301 !string_enum_compare(name, map[i].name, namelen)) {
302 *value = map[i].value;
309 #define map_enum(attr, map, name) \
310 map_enum_do(map, ARRAY_SIZE(map), attr, name)
312 #define prefixcmp(str1, str2) \
313 strncmp(str1, str2, STRING_SIZE(str2))
316 suffixcmp(const char *str, int slen, const char *suffix)
318 size_t len = slen >= 0 ? slen : strlen(str);
319 size_t suffixlen = strlen(suffix);
321 return suffixlen < len ? strcmp(str + len - suffixlen, suffix) : -1;
326 argv_from_string(const char *argv[SIZEOF_ARG], int *argc, char *cmd)
330 while (*cmd && *argc < SIZEOF_ARG && (valuelen = strcspn(cmd, " \t"))) {
331 bool advance = cmd[valuelen] != 0;
334 argv[(*argc)++] = chomp_string(cmd);
335 cmd = chomp_string(cmd + valuelen + advance);
338 if (*argc < SIZEOF_ARG)
340 return *argc < SIZEOF_ARG;
344 argv_from_env(const char **argv, const char *name)
346 char *env = argv ? getenv(name) : NULL;
351 if (env && !argv_from_string(argv, &argc, env))
352 die("Too many arguments in the `%s` environment variable", name);
357 * Executing external commands.
361 IO_FD, /* File descriptor based IO. */
362 IO_BG, /* Execute command in the background. */
363 IO_FG, /* Execute command with same std{in,out,err}. */
364 IO_RD, /* Read only fork+exec IO. */
365 IO_WR, /* Write only fork+exec IO. */
366 IO_AP, /* Append fork+exec output to file. */
370 enum io_type type; /* The requested type of pipe. */
371 const char *dir; /* Directory from which to execute. */
372 pid_t pid; /* Pipe for reading or writing. */
373 int pipe; /* Pipe end for reading or writing. */
374 int error; /* Error status. */
375 const char *argv[SIZEOF_ARG]; /* Shell command arguments. */
376 char *buf; /* Read buffer. */
377 size_t bufalloc; /* Allocated buffer size. */
378 size_t bufsize; /* Buffer content size. */
379 char *bufpos; /* Current buffer position. */
380 unsigned int eof:1; /* Has end of file been reached. */
384 reset_io(struct io *io)
388 io->buf = io->bufpos = NULL;
389 io->bufalloc = io->bufsize = 0;
395 init_io(struct io *io, const char *dir, enum io_type type)
403 init_io_rd(struct io *io, const char *argv[], const char *dir,
404 enum format_flags flags)
406 init_io(io, dir, IO_RD);
407 return format_argv(io->argv, argv, flags);
411 io_open(struct io *io, const char *name)
413 init_io(io, NULL, IO_FD);
414 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 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 int opt_tab_size = TAB_SIZE;
877 static int opt_author_cols = AUTHOR_COLS-1;
878 static char opt_path[SIZEOF_STR] = "";
879 static char opt_file[SIZEOF_STR] = "";
880 static char opt_ref[SIZEOF_REF] = "";
881 static char opt_head[SIZEOF_REF] = "";
882 static char opt_head_rev[SIZEOF_REV] = "";
883 static char opt_remote[SIZEOF_REF] = "";
884 static char opt_encoding[20] = "UTF-8";
885 static bool opt_utf8 = TRUE;
886 static char opt_codeset[20] = "UTF-8";
887 static iconv_t opt_iconv = ICONV_NONE;
888 static char opt_search[SIZEOF_STR] = "";
889 static char opt_cdup[SIZEOF_STR] = "";
890 static char opt_prefix[SIZEOF_STR] = "";
891 static char opt_git_dir[SIZEOF_STR] = "";
892 static signed char opt_is_inside_work_tree = -1; /* set to TRUE or FALSE */
893 static char opt_editor[SIZEOF_STR] = "";
894 static FILE *opt_tty = NULL;
896 #define is_initial_commit() (!*opt_head_rev)
897 #define is_head_commit(rev) (!strcmp((rev), "HEAD") || !strcmp(opt_head_rev, (rev)))
901 * Line-oriented content detection.
905 LINE(DIFF_HEADER, "diff --git ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
906 LINE(DIFF_CHUNK, "@@", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
907 LINE(DIFF_ADD, "+", COLOR_GREEN, COLOR_DEFAULT, 0), \
908 LINE(DIFF_DEL, "-", COLOR_RED, COLOR_DEFAULT, 0), \
909 LINE(DIFF_INDEX, "index ", COLOR_BLUE, COLOR_DEFAULT, 0), \
910 LINE(DIFF_OLDMODE, "old file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
911 LINE(DIFF_NEWMODE, "new file mode ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
912 LINE(DIFF_COPY_FROM, "copy from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
913 LINE(DIFF_COPY_TO, "copy to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
914 LINE(DIFF_RENAME_FROM, "rename from", COLOR_YELLOW, COLOR_DEFAULT, 0), \
915 LINE(DIFF_RENAME_TO, "rename to", COLOR_YELLOW, COLOR_DEFAULT, 0), \
916 LINE(DIFF_SIMILARITY, "similarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
917 LINE(DIFF_DISSIMILARITY,"dissimilarity ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
918 LINE(DIFF_TREE, "diff-tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
919 LINE(PP_AUTHOR, "Author: ", COLOR_CYAN, COLOR_DEFAULT, 0), \
920 LINE(PP_COMMIT, "Commit: ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
921 LINE(PP_MERGE, "Merge: ", COLOR_BLUE, COLOR_DEFAULT, 0), \
922 LINE(PP_DATE, "Date: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
923 LINE(PP_ADATE, "AuthorDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
924 LINE(PP_CDATE, "CommitDate: ", COLOR_YELLOW, COLOR_DEFAULT, 0), \
925 LINE(PP_REFS, "Refs: ", COLOR_RED, COLOR_DEFAULT, 0), \
926 LINE(COMMIT, "commit ", COLOR_GREEN, COLOR_DEFAULT, 0), \
927 LINE(PARENT, "parent ", COLOR_BLUE, COLOR_DEFAULT, 0), \
928 LINE(TREE, "tree ", COLOR_BLUE, COLOR_DEFAULT, 0), \
929 LINE(AUTHOR, "author ", COLOR_GREEN, COLOR_DEFAULT, 0), \
930 LINE(COMMITTER, "committer ", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
931 LINE(SIGNOFF, " Signed-off-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
932 LINE(ACKED, " Acked-by", COLOR_YELLOW, COLOR_DEFAULT, 0), \
933 LINE(DEFAULT, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
934 LINE(CURSOR, "", COLOR_WHITE, COLOR_GREEN, A_BOLD), \
935 LINE(STATUS, "", COLOR_GREEN, COLOR_DEFAULT, 0), \
936 LINE(DELIMITER, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
937 LINE(DATE, "", COLOR_BLUE, COLOR_DEFAULT, 0), \
938 LINE(MODE, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
939 LINE(LINE_NUMBER, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
940 LINE(TITLE_BLUR, "", COLOR_WHITE, COLOR_BLUE, 0), \
941 LINE(TITLE_FOCUS, "", COLOR_WHITE, COLOR_BLUE, A_BOLD), \
942 LINE(MAIN_COMMIT, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
943 LINE(MAIN_TAG, "", COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD), \
944 LINE(MAIN_LOCAL_TAG,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
945 LINE(MAIN_REMOTE, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
946 LINE(MAIN_TRACKED, "", COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), \
947 LINE(MAIN_REF, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
948 LINE(MAIN_HEAD, "", COLOR_CYAN, COLOR_DEFAULT, A_BOLD), \
949 LINE(MAIN_REVGRAPH,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
950 LINE(TREE_HEAD, "", COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD), \
951 LINE(TREE_DIR, "", COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), \
952 LINE(TREE_FILE, "", COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), \
953 LINE(STAT_HEAD, "", COLOR_YELLOW, COLOR_DEFAULT, 0), \
954 LINE(STAT_SECTION, "", COLOR_CYAN, COLOR_DEFAULT, 0), \
955 LINE(STAT_NONE, "", COLOR_DEFAULT, COLOR_DEFAULT, 0), \
956 LINE(STAT_STAGED, "", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
957 LINE(STAT_UNSTAGED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
958 LINE(STAT_UNTRACKED,"", COLOR_MAGENTA, COLOR_DEFAULT, 0), \
959 LINE(BLAME_ID, "", COLOR_MAGENTA, COLOR_DEFAULT, 0)
962 #define LINE(type, line, fg, bg, attr) \
970 const char *name; /* Option name. */
971 int namelen; /* Size of option name. */
972 const char *line; /* The start of line to match. */
973 int linelen; /* Size of string to match. */
974 int fg, bg, attr; /* Color and text attributes for the lines. */
977 static struct line_info line_info[] = {
978 #define LINE(type, line, fg, bg, attr) \
979 { #type, STRING_SIZE(#type), (line), STRING_SIZE(line), (fg), (bg), (attr) }
984 static enum line_type
985 get_line_type(const char *line)
987 int linelen = strlen(line);
990 for (type = 0; type < ARRAY_SIZE(line_info); type++)
991 /* Case insensitive search matches Signed-off-by lines better. */
992 if (linelen >= line_info[type].linelen &&
993 !strncasecmp(line_info[type].line, line, line_info[type].linelen))
1000 get_line_attr(enum line_type type)
1002 assert(type < ARRAY_SIZE(line_info));
1003 return COLOR_PAIR(type) | line_info[type].attr;
1006 static struct line_info *
1007 get_line_info(const char *name)
1009 size_t namelen = strlen(name);
1010 enum line_type type;
1012 for (type = 0; type < ARRAY_SIZE(line_info); type++)
1013 if (namelen == line_info[type].namelen &&
1014 !string_enum_compare(line_info[type].name, name, namelen))
1015 return &line_info[type];
1023 int default_bg = line_info[LINE_DEFAULT].bg;
1024 int default_fg = line_info[LINE_DEFAULT].fg;
1025 enum line_type type;
1029 if (assume_default_colors(default_fg, default_bg) == ERR) {
1030 default_bg = COLOR_BLACK;
1031 default_fg = COLOR_WHITE;
1034 for (type = 0; type < ARRAY_SIZE(line_info); type++) {
1035 struct line_info *info = &line_info[type];
1036 int bg = info->bg == COLOR_DEFAULT ? default_bg : info->bg;
1037 int fg = info->fg == COLOR_DEFAULT ? default_fg : info->fg;
1039 init_pair(type, fg, bg);
1044 enum line_type type;
1047 unsigned int selected:1;
1048 unsigned int dirty:1;
1049 unsigned int cleareol:1;
1051 void *data; /* User data */
1061 enum request request;
1064 static struct keybinding default_keybindings[] = {
1065 /* View switching */
1066 { 'm', REQ_VIEW_MAIN },
1067 { 'd', REQ_VIEW_DIFF },
1068 { 'l', REQ_VIEW_LOG },
1069 { 't', REQ_VIEW_TREE },
1070 { 'f', REQ_VIEW_BLOB },
1071 { 'B', REQ_VIEW_BLAME },
1072 { 'p', REQ_VIEW_PAGER },
1073 { 'h', REQ_VIEW_HELP },
1074 { 'S', REQ_VIEW_STATUS },
1075 { 'c', REQ_VIEW_STAGE },
1077 /* View manipulation */
1078 { 'q', REQ_VIEW_CLOSE },
1079 { KEY_TAB, REQ_VIEW_NEXT },
1080 { KEY_RETURN, REQ_ENTER },
1081 { KEY_UP, REQ_PREVIOUS },
1082 { KEY_DOWN, REQ_NEXT },
1083 { 'R', REQ_REFRESH },
1084 { KEY_F(5), REQ_REFRESH },
1085 { 'O', REQ_MAXIMIZE },
1087 /* Cursor navigation */
1088 { 'k', REQ_MOVE_UP },
1089 { 'j', REQ_MOVE_DOWN },
1090 { KEY_HOME, REQ_MOVE_FIRST_LINE },
1091 { KEY_END, REQ_MOVE_LAST_LINE },
1092 { KEY_NPAGE, REQ_MOVE_PAGE_DOWN },
1093 { ' ', REQ_MOVE_PAGE_DOWN },
1094 { KEY_PPAGE, REQ_MOVE_PAGE_UP },
1095 { 'b', REQ_MOVE_PAGE_UP },
1096 { '-', REQ_MOVE_PAGE_UP },
1099 { KEY_LEFT, REQ_SCROLL_LEFT },
1100 { KEY_RIGHT, REQ_SCROLL_RIGHT },
1101 { KEY_IC, REQ_SCROLL_LINE_UP },
1102 { KEY_DC, REQ_SCROLL_LINE_DOWN },
1103 { 'w', REQ_SCROLL_PAGE_UP },
1104 { 's', REQ_SCROLL_PAGE_DOWN },
1107 { '/', REQ_SEARCH },
1108 { '?', REQ_SEARCH_BACK },
1109 { 'n', REQ_FIND_NEXT },
1110 { 'N', REQ_FIND_PREV },
1114 { 'z', REQ_STOP_LOADING },
1115 { 'v', REQ_SHOW_VERSION },
1116 { 'r', REQ_SCREEN_REDRAW },
1117 { '.', REQ_TOGGLE_LINENO },
1118 { 'D', REQ_TOGGLE_DATE },
1119 { 'A', REQ_TOGGLE_AUTHOR },
1120 { 'g', REQ_TOGGLE_REV_GRAPH },
1121 { 'F', REQ_TOGGLE_REFS },
1122 { ':', REQ_PROMPT },
1123 { 'u', REQ_STATUS_UPDATE },
1124 { '!', REQ_STATUS_REVERT },
1125 { 'M', REQ_STATUS_MERGE },
1126 { '@', REQ_STAGE_NEXT },
1127 { ',', REQ_PARENT },
1131 #define KEYMAP_INFO \
1145 #define KEYMAP_(name) KEYMAP_##name
1150 static struct enum_map keymap_table[] = {
1151 #define KEYMAP_(name) ENUM_MAP(#name, KEYMAP_##name)
1156 #define set_keymap(map, name) map_enum(map, keymap_table, name)
1158 struct keybinding_table {
1159 struct keybinding *data;
1163 static struct keybinding_table keybindings[ARRAY_SIZE(keymap_table)];
1166 add_keybinding(enum keymap keymap, enum request request, int key)
1168 struct keybinding_table *table = &keybindings[keymap];
1170 table->data = realloc(table->data, (table->size + 1) * sizeof(*table->data));
1172 die("Failed to allocate keybinding");
1173 table->data[table->size].alias = key;
1174 table->data[table->size++].request = request;
1177 /* Looks for a key binding first in the given map, then in the generic map, and
1178 * lastly in the default keybindings. */
1180 get_keybinding(enum keymap keymap, int key)
1184 for (i = 0; i < keybindings[keymap].size; i++)
1185 if (keybindings[keymap].data[i].alias == key)
1186 return keybindings[keymap].data[i].request;
1188 for (i = 0; i < keybindings[KEYMAP_GENERIC].size; i++)
1189 if (keybindings[KEYMAP_GENERIC].data[i].alias == key)
1190 return keybindings[KEYMAP_GENERIC].data[i].request;
1192 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++)
1193 if (default_keybindings[i].alias == key)
1194 return default_keybindings[i].request;
1196 return (enum request) key;
1205 static struct key key_table[] = {
1206 { "Enter", KEY_RETURN },
1208 { "Backspace", KEY_BACKSPACE },
1210 { "Escape", KEY_ESC },
1211 { "Left", KEY_LEFT },
1212 { "Right", KEY_RIGHT },
1214 { "Down", KEY_DOWN },
1215 { "Insert", KEY_IC },
1216 { "Delete", KEY_DC },
1218 { "Home", KEY_HOME },
1220 { "PageUp", KEY_PPAGE },
1221 { "PageDown", KEY_NPAGE },
1231 { "F10", KEY_F(10) },
1232 { "F11", KEY_F(11) },
1233 { "F12", KEY_F(12) },
1237 get_key_value(const char *name)
1241 for (i = 0; i < ARRAY_SIZE(key_table); i++)
1242 if (!strcasecmp(key_table[i].name, name))
1243 return key_table[i].value;
1245 if (strlen(name) == 1 && isprint(*name))
1252 get_key_name(int key_value)
1254 static char key_char[] = "'X'";
1255 const char *seq = NULL;
1258 for (key = 0; key < ARRAY_SIZE(key_table); key++)
1259 if (key_table[key].value == key_value)
1260 seq = key_table[key].name;
1264 isprint(key_value)) {
1265 key_char[1] = (char) key_value;
1269 return seq ? seq : "(no key)";
1273 get_key(enum request request)
1275 static char buf[BUFSIZ];
1282 for (i = 0; i < ARRAY_SIZE(default_keybindings); i++) {
1283 struct keybinding *keybinding = &default_keybindings[i];
1285 if (keybinding->request != request)
1288 if (!string_format_from(buf, &pos, "%s%s", sep,
1289 get_key_name(keybinding->alias)))
1290 return "Too many keybindings!";
1297 struct run_request {
1300 const char *argv[SIZEOF_ARG];
1303 static struct run_request *run_request;
1304 static size_t run_requests;
1307 add_run_request(enum keymap keymap, int key, int argc, const char **argv)
1309 struct run_request *req;
1311 if (argc >= ARRAY_SIZE(req->argv) - 1)
1314 req = realloc(run_request, (run_requests + 1) * sizeof(*run_request));
1319 req = &run_request[run_requests];
1320 req->keymap = keymap;
1322 req->argv[0] = NULL;
1324 if (!format_argv(req->argv, argv, FORMAT_NONE))
1327 return REQ_NONE + ++run_requests;
1330 static struct run_request *
1331 get_run_request(enum request request)
1333 if (request <= REQ_NONE)
1335 return &run_request[request - REQ_NONE - 1];
1339 add_builtin_run_requests(void)
1341 const char *cherry_pick[] = { "git", "cherry-pick", "%(commit)", NULL };
1342 const char *gc[] = { "git", "gc", NULL };
1349 { KEYMAP_MAIN, 'C', ARRAY_SIZE(cherry_pick) - 1, cherry_pick },
1350 { KEYMAP_GENERIC, 'G', ARRAY_SIZE(gc) - 1, gc },
1354 for (i = 0; i < ARRAY_SIZE(reqs); i++) {
1357 req = add_run_request(reqs[i].keymap, reqs[i].key, reqs[i].argc, reqs[i].argv);
1358 if (req != REQ_NONE)
1359 add_keybinding(reqs[i].keymap, req, reqs[i].key);
1364 * User config file handling.
1367 static int config_lineno;
1368 static bool config_errors;
1369 static const char *config_msg;
1371 static struct enum_map color_map[] = {
1372 #define COLOR_MAP(name) ENUM_MAP(#name, COLOR_##name)
1384 static struct enum_map attr_map[] = {
1385 #define ATTR_MAP(name) ENUM_MAP(#name, A_##name)
1392 ATTR_MAP(UNDERLINE),
1395 #define set_attribute(attr, name) map_enum(attr, attr_map, name)
1398 parse_int(int *opt, const char *arg, int min, int max)
1400 int value = atoi(arg);
1402 if (min <= value && value <= max) {
1407 config_msg = "Integer value out of bound";
1412 set_color(int *color, const char *name)
1414 if (map_enum(color, color_map, name))
1416 if (!prefixcmp(name, "color"))
1417 return parse_int(color, name + 5, 0, 255) == OK;
1421 /* Wants: object fgcolor bgcolor [attribute] */
1423 option_color_command(int argc, const char *argv[])
1425 struct line_info *info;
1427 if (argc != 3 && argc != 4) {
1428 config_msg = "Wrong number of arguments given to color command";
1432 info = get_line_info(argv[0]);
1434 static struct enum_map obsolete[] = {
1435 ENUM_MAP("main-delim", LINE_DELIMITER),
1436 ENUM_MAP("main-date", LINE_DATE),
1437 ENUM_MAP("main-author", LINE_AUTHOR),
1441 if (!map_enum(&index, obsolete, argv[0])) {
1442 config_msg = "Unknown color name";
1445 info = &line_info[index];
1448 if (!set_color(&info->fg, argv[1]) ||
1449 !set_color(&info->bg, argv[2])) {
1450 config_msg = "Unknown color";
1454 if (argc == 4 && !set_attribute(&info->attr, argv[3])) {
1455 config_msg = "Unknown attribute";
1462 static int parse_bool(bool *opt, const char *arg)
1464 *opt = (!strcmp(arg, "1") || !strcmp(arg, "true") || !strcmp(arg, "yes"))
1470 parse_string(char *opt, const char *arg, size_t optsize)
1472 int arglen = strlen(arg);
1477 if (arglen == 1 || arg[arglen - 1] != arg[0]) {
1478 config_msg = "Unmatched quotation";
1481 arg += 1; arglen -= 2;
1483 string_ncopy_do(opt, optsize, arg, strlen(arg));
1488 /* Wants: name = value */
1490 option_set_command(int argc, const char *argv[])
1493 config_msg = "Wrong number of arguments given to set command";
1497 if (strcmp(argv[1], "=")) {
1498 config_msg = "No value assigned";
1502 if (!strcmp(argv[0], "show-author"))
1503 return parse_bool(&opt_author, argv[2]);
1505 if (!strcmp(argv[0], "show-date"))
1506 return parse_bool(&opt_date, argv[2]);
1508 if (!strcmp(argv[0], "show-rev-graph"))
1509 return parse_bool(&opt_rev_graph, argv[2]);
1511 if (!strcmp(argv[0], "show-refs"))
1512 return parse_bool(&opt_show_refs, argv[2]);
1514 if (!strcmp(argv[0], "show-line-numbers"))
1515 return parse_bool(&opt_line_number, argv[2]);
1517 if (!strcmp(argv[0], "line-graphics"))
1518 return parse_bool(&opt_line_graphics, argv[2]);
1520 if (!strcmp(argv[0], "line-number-interval"))
1521 return parse_int(&opt_num_interval, argv[2], 1, 1024);
1523 if (!strcmp(argv[0], "author-width"))
1524 return parse_int(&opt_author_cols, argv[2], 0, 1024);
1526 if (!strcmp(argv[0], "tab-size"))
1527 return parse_int(&opt_tab_size, argv[2], 1, 1024);
1529 if (!strcmp(argv[0], "commit-encoding"))
1530 return parse_string(opt_encoding, argv[2], sizeof(opt_encoding));
1532 config_msg = "Unknown variable name";
1536 /* Wants: mode request key */
1538 option_bind_command(int argc, const char *argv[])
1540 enum request request;
1545 config_msg = "Wrong number of arguments given to bind command";
1549 if (set_keymap(&keymap, argv[0]) == ERR) {
1550 config_msg = "Unknown key map";
1554 key = get_key_value(argv[1]);
1556 config_msg = "Unknown key";
1560 request = get_request(argv[2]);
1561 if (request == REQ_NONE) {
1562 static struct enum_map obsolete[] = {
1563 ENUM_MAP("cherry-pick", REQ_NONE),
1564 ENUM_MAP("screen-resize", REQ_NONE),
1565 ENUM_MAP("tree-parent", REQ_PARENT),
1569 if (map_enum(&alias, obsolete, argv[2])) {
1570 if (alias != REQ_NONE)
1571 add_keybinding(keymap, alias, key);
1572 config_msg = "Obsolete request name";
1576 if (request == REQ_NONE && *argv[2]++ == '!')
1577 request = add_run_request(keymap, key, argc - 2, argv + 2);
1578 if (request == REQ_NONE) {
1579 config_msg = "Unknown request name";
1583 add_keybinding(keymap, request, key);
1589 set_option(const char *opt, char *value)
1591 const char *argv[SIZEOF_ARG];
1594 if (!argv_from_string(argv, &argc, value)) {
1595 config_msg = "Too many option arguments";
1599 if (!strcmp(opt, "color"))
1600 return option_color_command(argc, argv);
1602 if (!strcmp(opt, "set"))
1603 return option_set_command(argc, argv);
1605 if (!strcmp(opt, "bind"))
1606 return option_bind_command(argc, argv);
1608 config_msg = "Unknown option command";
1613 read_option(char *opt, size_t optlen, char *value, size_t valuelen)
1618 config_msg = "Internal error";
1620 /* Check for comment markers, since read_properties() will
1621 * only ensure opt and value are split at first " \t". */
1622 optlen = strcspn(opt, "#");
1626 if (opt[optlen] != 0) {
1627 config_msg = "No option value";
1631 /* Look for comment endings in the value. */
1632 size_t len = strcspn(value, "#");
1634 if (len < valuelen) {
1636 value[valuelen] = 0;
1639 status = set_option(opt, value);
1642 if (status == ERR) {
1643 warn("Error on line %d, near '%.*s': %s",
1644 config_lineno, (int) optlen, opt, config_msg);
1645 config_errors = TRUE;
1648 /* Always keep going if errors are encountered. */
1653 load_option_file(const char *path)
1657 /* It's OK that the file doesn't exist. */
1658 if (!io_open(&io, path))
1662 config_errors = FALSE;
1664 if (io_load(&io, " \t", read_option) == ERR ||
1665 config_errors == TRUE)
1666 warn("Errors while loading %s.", path);
1672 const char *home = getenv("HOME");
1673 const char *tigrc_user = getenv("TIGRC_USER");
1674 const char *tigrc_system = getenv("TIGRC_SYSTEM");
1675 char buf[SIZEOF_STR];
1677 add_builtin_run_requests();
1680 tigrc_system = SYSCONFDIR "/tigrc";
1681 load_option_file(tigrc_system);
1684 if (!home || !string_format(buf, "%s/.tigrc", home))
1688 load_option_file(tigrc_user);
1701 /* The display array of active views and the index of the current view. */
1702 static struct view *display[2];
1703 static unsigned int current_view;
1705 #define foreach_displayed_view(view, i) \
1706 for (i = 0; i < ARRAY_SIZE(display) && (view = display[i]); i++)
1708 #define displayed_views() (display[1] != NULL ? 2 : 1)
1710 /* Current head and commit ID */
1711 static char ref_blob[SIZEOF_REF] = "";
1712 static char ref_commit[SIZEOF_REF] = "HEAD";
1713 static char ref_head[SIZEOF_REF] = "HEAD";
1716 const char *name; /* View name */
1717 const char *cmd_env; /* Command line set via environment */
1718 const char *id; /* Points to either of ref_{head,commit,blob} */
1720 struct view_ops *ops; /* View operations */
1722 enum keymap keymap; /* What keymap does this view have */
1723 bool git_dir; /* Whether the view requires a git directory. */
1725 char ref[SIZEOF_REF]; /* Hovered commit reference */
1726 char vid[SIZEOF_REF]; /* View ID. Set to id member when updating. */
1728 int height, width; /* The width and height of the main window */
1729 WINDOW *win; /* The main window */
1730 WINDOW *title; /* The title window living below the main window */
1733 unsigned long offset; /* Offset of the window top */
1734 unsigned long yoffset; /* Offset from the window side. */
1735 unsigned long lineno; /* Current line number */
1736 unsigned long p_offset; /* Previous offset of the window top */
1737 unsigned long p_yoffset;/* Previous offset from the window side */
1738 unsigned long p_lineno; /* Previous current line number */
1739 bool p_restore; /* Should the previous position be restored. */
1742 char grep[SIZEOF_STR]; /* Search string */
1743 regex_t *regex; /* Pre-compiled regexp */
1745 /* If non-NULL, points to the view that opened this view. If this view
1746 * is closed tig will switch back to the parent view. */
1747 struct view *parent;
1750 size_t lines; /* Total number of lines */
1751 struct line *line; /* Line index */
1752 size_t line_alloc; /* Total number of allocated lines */
1753 unsigned int digits; /* Number of digits in the lines member. */
1756 struct line *curline; /* Line currently being drawn. */
1757 enum line_type curtype; /* Attribute currently used for drawing. */
1758 unsigned long col; /* Column when drawing. */
1759 bool has_scrolled; /* View was scrolled. */
1760 bool can_hscroll; /* View can be scrolled horizontally. */
1770 /* What type of content being displayed. Used in the title bar. */
1772 /* Default command arguments. */
1774 /* Open and reads in all view content. */
1775 bool (*open)(struct view *view);
1776 /* Read one line; updates view->line. */
1777 bool (*read)(struct view *view, char *data);
1778 /* Draw one line; @lineno must be < view->height. */
1779 bool (*draw)(struct view *view, struct line *line, unsigned int lineno);
1780 /* Depending on view handle a special requests. */
1781 enum request (*request)(struct view *view, enum request request, struct line *line);
1782 /* Search for regexp in a line. */
1783 bool (*grep)(struct view *view, struct line *line);
1785 void (*select)(struct view *view, struct line *line);
1788 static struct view_ops blame_ops;
1789 static struct view_ops blob_ops;
1790 static struct view_ops diff_ops;
1791 static struct view_ops help_ops;
1792 static struct view_ops log_ops;
1793 static struct view_ops main_ops;
1794 static struct view_ops pager_ops;
1795 static struct view_ops stage_ops;
1796 static struct view_ops status_ops;
1797 static struct view_ops tree_ops;
1799 #define VIEW_STR(name, env, ref, ops, map, git) \
1800 { name, #env, ref, ops, map, git }
1802 #define VIEW_(id, name, ops, git, ref) \
1803 VIEW_STR(name, TIG_##id##_CMD, ref, ops, KEYMAP_##id, git)
1806 static struct view views[] = {
1807 VIEW_(MAIN, "main", &main_ops, TRUE, ref_head),
1808 VIEW_(DIFF, "diff", &diff_ops, TRUE, ref_commit),
1809 VIEW_(LOG, "log", &log_ops, TRUE, ref_head),
1810 VIEW_(TREE, "tree", &tree_ops, TRUE, ref_commit),
1811 VIEW_(BLOB, "blob", &blob_ops, TRUE, ref_blob),
1812 VIEW_(BLAME, "blame", &blame_ops, TRUE, ref_commit),
1813 VIEW_(HELP, "help", &help_ops, FALSE, ""),
1814 VIEW_(PAGER, "pager", &pager_ops, FALSE, "stdin"),
1815 VIEW_(STATUS, "status", &status_ops, TRUE, ""),
1816 VIEW_(STAGE, "stage", &stage_ops, TRUE, ""),
1819 #define VIEW(req) (&views[(req) - REQ_OFFSET - 1])
1820 #define VIEW_REQ(view) ((view) - views + REQ_OFFSET + 1)
1822 #define foreach_view(view, i) \
1823 for (i = 0; i < ARRAY_SIZE(views) && (view = &views[i]); i++)
1825 #define view_is_displayed(view) \
1826 (view == display[0] || view == display[1])
1833 static int line_graphics[] = {
1834 /* LINE_GRAPHIC_VLINE: */ '|'
1838 set_view_attr(struct view *view, enum line_type type)
1840 if (!view->curline->selected && view->curtype != type) {
1841 wattrset(view->win, get_line_attr(type));
1842 wchgat(view->win, -1, 0, type, NULL);
1843 view->curtype = type;
1848 draw_chars(struct view *view, enum line_type type, const char *string,
1849 int max_len, bool use_tilde)
1853 int trimmed = FALSE;
1854 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1860 len = utf8_length(&string, skip, &col, max_len, &trimmed, use_tilde);
1862 col = len = strlen(string);
1863 if (len > max_len) {
1867 col = len = max_len;
1872 set_view_attr(view, type);
1874 waddnstr(view->win, string, len);
1875 if (trimmed && use_tilde) {
1876 set_view_attr(view, LINE_DELIMITER);
1877 waddch(view->win, '~');
1881 if (view->col + col >= view->width + view->yoffset)
1882 view->can_hscroll = TRUE;
1888 draw_space(struct view *view, enum line_type type, int max, int spaces)
1890 static char space[] = " ";
1893 spaces = MIN(max, spaces);
1895 while (spaces > 0) {
1896 int len = MIN(spaces, sizeof(space) - 1);
1898 col += draw_chars(view, type, space, spaces, FALSE);
1906 draw_lineno(struct view *view, unsigned int lineno)
1908 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1910 int digits3 = view->digits < 3 ? 3 : view->digits;
1911 int max_number = MIN(digits3, STRING_SIZE(number));
1912 int max = view->width - view->col;
1915 if (max < max_number)
1918 lineno += view->offset + 1;
1919 if (lineno == 1 || (lineno % opt_num_interval) == 0) {
1920 static char fmt[] = "%1ld";
1922 if (view->digits <= 9)
1923 fmt[1] = '0' + digits3;
1925 if (!string_format(number, fmt, lineno))
1927 col = draw_chars(view, LINE_LINE_NUMBER, number, max_number, TRUE);
1929 col = draw_space(view, LINE_LINE_NUMBER, max_number, max_number);
1932 if (col < max && skip <= col) {
1933 set_view_attr(view, LINE_DEFAULT);
1934 waddch(view->win, line_graphics[LINE_GRAPHIC_VLINE]);
1939 if (col < max && skip <= col)
1940 col = draw_space(view, LINE_DEFAULT, max - col, 1);
1943 return view->width + view->yoffset <= view->col;
1947 draw_text(struct view *view, enum line_type type, const char *string, bool trim)
1949 view->col += draw_chars(view, type, string, view->width + view->yoffset - view->col, trim);
1950 return view->width - view->col <= 0;
1954 draw_graphic(struct view *view, enum line_type type, chtype graphic[], size_t size)
1956 size_t skip = view->yoffset > view->col ? view->yoffset - view->col : 0;
1957 int max = view->width - view->col;
1963 set_view_attr(view, type);
1964 /* Using waddch() instead of waddnstr() ensures that
1965 * they'll be rendered correctly for the cursor line. */
1966 for (i = skip; i < size; i++)
1967 waddch(view->win, graphic[i]);
1970 if (size < max && skip <= size)
1971 waddch(view->win, ' ');
1974 return view->width - view->col <= 0;
1978 draw_field(struct view *view, enum line_type type, const char *text, int len, bool trim)
1980 int max = MIN(view->width - view->col, len);
1984 col = draw_chars(view, type, text, max - 1, trim);
1986 col = draw_space(view, type, max - 1, max - 1);
1989 view->col += draw_space(view, LINE_DEFAULT, max - col, max - col);
1990 return view->width + view->yoffset <= view->col;
1994 draw_date(struct view *view, struct tm *time)
1996 char buf[DATE_COLS];
2001 timelen = strftime(buf, sizeof(buf), DATE_FORMAT, time);
2002 date = timelen ? buf : NULL;
2004 return draw_field(view, LINE_DATE, date, DATE_COLS, FALSE);
2008 draw_author(struct view *view, const char *author)
2010 bool trim = opt_author_cols == 0 || opt_author_cols > 5 || !author;
2013 static char initials[10];
2016 #define is_initial_sep(c) (isspace(c) || ispunct(c) || (c) == '@')
2018 memset(initials, 0, sizeof(initials));
2019 for (pos = 0; *author && pos < opt_author_cols - 1; author++, pos++) {
2020 while (is_initial_sep(*author))
2022 strncpy(&initials[pos], author, sizeof(initials) - 1 - pos);
2023 while (*author && !is_initial_sep(author[1]))
2030 return draw_field(view, LINE_AUTHOR, author, opt_author_cols, trim);
2034 draw_mode(struct view *view, mode_t mode)
2036 static const char dir_mode[] = "drwxr-xr-x";
2037 static const char link_mode[] = "lrwxrwxrwx";
2038 static const char exe_mode[] = "-rwxr-xr-x";
2039 static const char file_mode[] = "-rw-r--r--";
2044 else if (S_ISLNK(mode))
2046 else if (mode & S_IXUSR)
2051 return draw_field(view, LINE_MODE, str, sizeof(file_mode), FALSE);
2055 draw_view_line(struct view *view, unsigned int lineno)
2058 bool selected = (view->offset + lineno == view->lineno);
2060 assert(view_is_displayed(view));
2062 if (view->offset + lineno >= view->lines)
2065 line = &view->line[view->offset + lineno];
2067 wmove(view->win, lineno, 0);
2069 wclrtoeol(view->win);
2071 view->curline = line;
2072 view->curtype = LINE_NONE;
2073 line->selected = FALSE;
2074 line->dirty = line->cleareol = 0;
2077 set_view_attr(view, LINE_CURSOR);
2078 line->selected = TRUE;
2079 view->ops->select(view, line);
2082 return view->ops->draw(view, line, lineno);
2086 redraw_view_dirty(struct view *view)
2091 for (lineno = 0; lineno < view->height; lineno++) {
2092 if (view->offset + lineno >= view->lines)
2094 if (!view->line[view->offset + lineno].dirty)
2097 if (!draw_view_line(view, lineno))
2103 wnoutrefresh(view->win);
2107 redraw_view_from(struct view *view, int lineno)
2109 assert(0 <= lineno && lineno < view->height);
2112 view->can_hscroll = FALSE;
2114 for (; lineno < view->height; lineno++) {
2115 if (!draw_view_line(view, lineno))
2119 wnoutrefresh(view->win);
2123 redraw_view(struct view *view)
2126 redraw_view_from(view, 0);
2131 update_view_title(struct view *view)
2133 char buf[SIZEOF_STR];
2134 char state[SIZEOF_STR];
2135 size_t bufpos = 0, statelen = 0;
2137 assert(view_is_displayed(view));
2139 if (view != VIEW(REQ_VIEW_STATUS) && view->lines) {
2140 unsigned int view_lines = view->offset + view->height;
2141 unsigned int lines = view->lines
2142 ? MIN(view_lines, view->lines) * 100 / view->lines
2145 string_format_from(state, &statelen, " - %s %d of %d (%d%%)",
2154 time_t secs = time(NULL) - view->start_time;
2156 /* Three git seconds are a long time ... */
2158 string_format_from(state, &statelen, " loading %lds", secs);
2161 string_format_from(buf, &bufpos, "[%s]", view->name);
2162 if (*view->ref && bufpos < view->width) {
2163 size_t refsize = strlen(view->ref);
2164 size_t minsize = bufpos + 1 + /* abbrev= */ 7 + 1 + statelen;
2166 if (minsize < view->width)
2167 refsize = view->width - minsize + 7;
2168 string_format_from(buf, &bufpos, " %.*s", (int) refsize, view->ref);
2171 if (statelen && bufpos < view->width) {
2172 string_format_from(buf, &bufpos, "%s", state);
2175 if (view == display[current_view])
2176 wbkgdset(view->title, get_line_attr(LINE_TITLE_FOCUS));
2178 wbkgdset(view->title, get_line_attr(LINE_TITLE_BLUR));
2180 mvwaddnstr(view->title, 0, 0, buf, bufpos);
2181 wclrtoeol(view->title);
2182 wnoutrefresh(view->title);
2186 resize_display(void)
2189 struct view *base = display[0];
2190 struct view *view = display[1] ? display[1] : display[0];
2192 /* Setup window dimensions */
2194 getmaxyx(stdscr, base->height, base->width);
2196 /* Make room for the status window. */
2200 /* Horizontal split. */
2201 view->width = base->width;
2202 view->height = SCALE_SPLIT_VIEW(base->height);
2203 base->height -= view->height;
2205 /* Make room for the title bar. */
2209 /* Make room for the title bar. */
2214 foreach_displayed_view (view, i) {
2216 view->win = newwin(view->height, 0, offset, 0);
2218 die("Failed to create %s view", view->name);
2220 scrollok(view->win, FALSE);
2222 view->title = newwin(1, 0, offset + view->height, 0);
2224 die("Failed to create title window");
2227 wresize(view->win, view->height, view->width);
2228 mvwin(view->win, offset, 0);
2229 mvwin(view->title, offset + view->height, 0);
2232 offset += view->height + 1;
2237 redraw_display(bool clear)
2242 foreach_displayed_view (view, i) {
2246 update_view_title(view);
2251 toggle_view_option(bool *option, const char *help)
2254 redraw_display(FALSE);
2255 report("%sabling %s", *option ? "En" : "Dis", help);
2262 /* Scrolling backend */
2264 do_scroll_view(struct view *view, int lines)
2266 bool redraw_current_line = FALSE;
2268 /* The rendering expects the new offset. */
2269 view->offset += lines;
2271 assert(0 <= view->offset && view->offset < view->lines);
2274 /* Move current line into the view. */
2275 if (view->lineno < view->offset) {
2276 view->lineno = view->offset;
2277 redraw_current_line = TRUE;
2278 } else if (view->lineno >= view->offset + view->height) {
2279 view->lineno = view->offset + view->height - 1;
2280 redraw_current_line = TRUE;
2283 assert(view->offset <= view->lineno && view->lineno < view->lines);
2285 /* Redraw the whole screen if scrolling is pointless. */
2286 if (view->height < ABS(lines)) {
2290 int line = lines > 0 ? view->height - lines : 0;
2291 int end = line + ABS(lines);
2293 scrollok(view->win, TRUE);
2294 wscrl(view->win, lines);
2295 scrollok(view->win, FALSE);
2297 while (line < end && draw_view_line(view, line))
2300 if (redraw_current_line)
2301 draw_view_line(view, view->lineno - view->offset);
2302 wnoutrefresh(view->win);
2305 view->has_scrolled = TRUE;
2309 /* Scroll frontend */
2311 scroll_view(struct view *view, enum request request)
2315 assert(view_is_displayed(view));
2318 case REQ_SCROLL_LEFT:
2319 if (view->yoffset == 0) {
2320 report("Cannot scroll beyond the first column");
2323 if (view->yoffset <= SCROLL_INTERVAL)
2326 view->yoffset -= SCROLL_INTERVAL;
2327 redraw_view_from(view, 0);
2330 case REQ_SCROLL_RIGHT:
2331 if (!view->can_hscroll) {
2332 report("Cannot scroll beyond the last column");
2335 view->yoffset += SCROLL_INTERVAL;
2339 case REQ_SCROLL_PAGE_DOWN:
2340 lines = view->height;
2341 case REQ_SCROLL_LINE_DOWN:
2342 if (view->offset + lines > view->lines)
2343 lines = view->lines - view->offset;
2345 if (lines == 0 || view->offset + view->height >= view->lines) {
2346 report("Cannot scroll beyond the last line");
2351 case REQ_SCROLL_PAGE_UP:
2352 lines = view->height;
2353 case REQ_SCROLL_LINE_UP:
2354 if (lines > view->offset)
2355 lines = view->offset;
2358 report("Cannot scroll beyond the first line");
2366 die("request %d not handled in switch", request);
2369 do_scroll_view(view, lines);
2374 move_view(struct view *view, enum request request)
2376 int scroll_steps = 0;
2380 case REQ_MOVE_FIRST_LINE:
2381 steps = -view->lineno;
2384 case REQ_MOVE_LAST_LINE:
2385 steps = view->lines - view->lineno - 1;
2388 case REQ_MOVE_PAGE_UP:
2389 steps = view->height > view->lineno
2390 ? -view->lineno : -view->height;
2393 case REQ_MOVE_PAGE_DOWN:
2394 steps = view->lineno + view->height >= view->lines
2395 ? view->lines - view->lineno - 1 : view->height;
2407 die("request %d not handled in switch", request);
2410 if (steps <= 0 && view->lineno == 0) {
2411 report("Cannot move beyond the first line");
2414 } else if (steps >= 0 && view->lineno + 1 >= view->lines) {
2415 report("Cannot move beyond the last line");
2419 /* Move the current line */
2420 view->lineno += steps;
2421 assert(0 <= view->lineno && view->lineno < view->lines);
2423 /* Check whether the view needs to be scrolled */
2424 if (view->lineno < view->offset ||
2425 view->lineno >= view->offset + view->height) {
2426 scroll_steps = steps;
2427 if (steps < 0 && -steps > view->offset) {
2428 scroll_steps = -view->offset;
2430 } else if (steps > 0) {
2431 if (view->lineno == view->lines - 1 &&
2432 view->lines > view->height) {
2433 scroll_steps = view->lines - view->offset - 1;
2434 if (scroll_steps >= view->height)
2435 scroll_steps -= view->height - 1;
2440 if (!view_is_displayed(view)) {
2441 view->offset += scroll_steps;
2442 assert(0 <= view->offset && view->offset < view->lines);
2443 view->ops->select(view, &view->line[view->lineno]);
2447 /* Repaint the old "current" line if we be scrolling */
2448 if (ABS(steps) < view->height)
2449 draw_view_line(view, view->lineno - steps - view->offset);
2452 do_scroll_view(view, scroll_steps);
2456 /* Draw the current line */
2457 draw_view_line(view, view->lineno - view->offset);
2459 wnoutrefresh(view->win);
2468 static void search_view(struct view *view, enum request request);
2471 select_view_line(struct view *view, unsigned long lineno)
2473 if (lineno - view->offset >= view->height) {
2474 view->offset = lineno;
2475 view->lineno = lineno;
2476 if (view_is_displayed(view))
2480 unsigned long old_lineno = view->lineno - view->offset;
2482 view->lineno = lineno;
2483 if (view_is_displayed(view)) {
2484 draw_view_line(view, old_lineno);
2485 draw_view_line(view, view->lineno - view->offset);
2486 wnoutrefresh(view->win);
2488 view->ops->select(view, &view->line[view->lineno]);
2494 find_next(struct view *view, enum request request)
2496 unsigned long lineno = view->lineno;
2501 report("No previous search");
2503 search_view(view, request);
2513 case REQ_SEARCH_BACK:
2522 if (request == REQ_FIND_NEXT || request == REQ_FIND_PREV)
2523 lineno += direction;
2525 /* Note, lineno is unsigned long so will wrap around in which case it
2526 * will become bigger than view->lines. */
2527 for (; lineno < view->lines; lineno += direction) {
2528 if (view->ops->grep(view, &view->line[lineno])) {
2529 select_view_line(view, lineno);
2530 report("Line %ld matches '%s'", lineno + 1, view->grep);
2535 report("No match found for '%s'", view->grep);
2539 search_view(struct view *view, enum request request)
2544 regfree(view->regex);
2547 view->regex = calloc(1, sizeof(*view->regex));
2552 regex_err = regcomp(view->regex, opt_search, REG_EXTENDED);
2553 if (regex_err != 0) {
2554 char buf[SIZEOF_STR] = "unknown error";
2556 regerror(regex_err, view->regex, buf, sizeof(buf));
2557 report("Search failed: %s", buf);
2561 string_copy(view->grep, opt_search);
2563 find_next(view, request);
2567 * Incremental updating
2571 reset_view(struct view *view)
2575 for (i = 0; i < view->lines; i++)
2576 free(view->line[i].data);
2579 view->p_offset = view->offset;
2580 view->p_yoffset = view->yoffset;
2581 view->p_lineno = view->lineno;
2588 view->line_alloc = 0;
2590 view->update_secs = 0;
2594 free_argv(const char *argv[])
2598 for (argc = 0; argv[argc]; argc++)
2599 free((void *) argv[argc]);
2603 format_argv(const char *dst_argv[], const char *src_argv[], enum format_flags flags)
2605 char buf[SIZEOF_STR];
2607 bool noreplace = flags == FORMAT_NONE;
2609 free_argv(dst_argv);
2611 for (argc = 0; src_argv[argc]; argc++) {
2612 const char *arg = src_argv[argc];
2616 char *next = strstr(arg, "%(");
2617 int len = next - arg;
2620 if (!next || noreplace) {
2621 if (flags == FORMAT_DASH && !strcmp(arg, "--"))
2626 } else if (!prefixcmp(next, "%(directory)")) {
2629 } else if (!prefixcmp(next, "%(file)")) {
2632 } else if (!prefixcmp(next, "%(ref)")) {
2633 value = *opt_ref ? opt_ref : "HEAD";
2635 } else if (!prefixcmp(next, "%(head)")) {
2638 } else if (!prefixcmp(next, "%(commit)")) {
2641 } else if (!prefixcmp(next, "%(blob)")) {
2645 report("Unknown replacement: `%s`", next);
2649 if (!string_format_from(buf, &bufpos, "%.*s%s", len, arg, value))
2652 arg = next && !noreplace ? strchr(next, ')') + 1 : NULL;
2655 dst_argv[argc] = strdup(buf);
2656 if (!dst_argv[argc])
2660 dst_argv[argc] = NULL;
2662 return src_argv[argc] == NULL;
2666 restore_view_position(struct view *view)
2668 if (!view->p_restore || (view->pipe && view->lines <= view->p_lineno))
2671 /* Changing the view position cancels the restoring. */
2672 /* FIXME: Changing back to the first line is not detected. */
2673 if (view->offset != 0 || view->lineno != 0) {
2674 view->p_restore = FALSE;
2678 if (view->p_lineno >= view->lines) {
2679 view->p_lineno = view->lines > 0 ? view->lines - 1 : 0;
2680 if (view->p_offset >= view->p_lineno) {
2681 unsigned long half = view->height / 2;
2683 if (view->p_lineno > half)
2684 view->p_offset = view->p_lineno - half;
2690 if (view_is_displayed(view) &&
2691 view->offset != view->p_offset &&
2692 view->lineno != view->p_lineno)
2695 view->offset = view->p_offset;
2696 view->yoffset = view->p_yoffset;
2697 view->lineno = view->p_lineno;
2698 view->p_restore = FALSE;
2704 end_update(struct view *view, bool force)
2708 while (!view->ops->read(view, NULL))
2711 set_nonblocking_input(FALSE);
2713 kill_io(view->pipe);
2714 done_io(view->pipe);
2719 setup_update(struct view *view, const char *vid)
2721 set_nonblocking_input(TRUE);
2723 string_copy_rev(view->vid, vid);
2724 view->pipe = &view->io;
2725 view->start_time = time(NULL);
2729 prepare_update(struct view *view, const char *argv[], const char *dir,
2730 enum format_flags flags)
2733 end_update(view, TRUE);
2734 return init_io_rd(&view->io, argv, dir, flags);
2738 prepare_update_file(struct view *view, const char *name)
2741 end_update(view, TRUE);
2742 return io_open(&view->io, name);
2746 begin_update(struct view *view, bool refresh)
2749 end_update(view, TRUE);
2752 if (!start_io(&view->io))
2756 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2759 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2762 /* Put the current ref_* value to the view title ref
2763 * member. This is needed by the blob view. Most other
2764 * views sets it automatically after loading because the
2765 * first line is a commit line. */
2766 string_copy_rev(view->ref, view->id);
2769 setup_update(view, view->id);
2774 #define ITEM_CHUNK_SIZE 256
2776 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2778 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2779 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2781 if (mem == NULL || num_chunks != num_chunks_new) {
2782 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2783 mem = realloc(mem, *size * item_size);
2789 static struct line *
2790 realloc_lines(struct view *view, size_t line_size)
2792 size_t alloc = view->line_alloc;
2793 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2794 sizeof(*view->line));
2800 view->line_alloc = alloc;
2805 update_view(struct view *view)
2807 char out_buffer[BUFSIZ * 2];
2809 /* Clear the view and redraw everything since the tree sorting
2810 * might have rearranged things. */
2811 bool redraw = view->lines == 0;
2812 bool can_read = TRUE;
2817 if (!io_can_read(view->pipe)) {
2818 if (view->lines == 0) {
2819 time_t secs = time(NULL) - view->start_time;
2821 if (secs > 1 && secs > view->update_secs) {
2822 if (view->update_secs == 0)
2824 update_view_title(view);
2825 view->update_secs = secs;
2831 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2832 if (opt_iconv != ICONV_NONE) {
2833 ICONV_CONST char *inbuf = line;
2834 size_t inlen = strlen(line) + 1;
2836 char *outbuf = out_buffer;
2837 size_t outlen = sizeof(out_buffer);
2841 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2842 if (ret != (size_t) -1)
2846 if (!view->ops->read(view, line)) {
2847 report("Allocation failure");
2848 end_update(view, TRUE);
2854 unsigned long lines = view->lines;
2857 for (digits = 0; lines; digits++)
2860 /* Keep the displayed view in sync with line number scaling. */
2861 if (digits != view->digits) {
2862 view->digits = digits;
2863 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2868 if (io_error(view->pipe)) {
2869 report("Failed to read: %s", io_strerror(view->pipe));
2870 end_update(view, TRUE);
2872 } else if (io_eof(view->pipe)) {
2874 end_update(view, FALSE);
2877 if (restore_view_position(view))
2880 if (!view_is_displayed(view))
2884 redraw_view_from(view, 0);
2886 redraw_view_dirty(view);
2888 /* Update the title _after_ the redraw so that if the redraw picks up a
2889 * commit reference in view->ref it'll be available here. */
2890 update_view_title(view);
2894 static struct line *
2895 add_line_data(struct view *view, void *data, enum line_type type)
2899 if (!realloc_lines(view, view->lines + 1))
2902 line = &view->line[view->lines++];
2903 memset(line, 0, sizeof(*line));
2911 static struct line *
2912 add_line_text(struct view *view, const char *text, enum line_type type)
2914 char *data = text ? strdup(text) : NULL;
2916 return data ? add_line_data(view, data, type) : NULL;
2919 static struct line *
2920 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2922 char buf[SIZEOF_STR];
2925 va_start(args, fmt);
2926 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2930 return buf[0] ? add_line_text(view, buf, type) : NULL;
2938 OPEN_DEFAULT = 0, /* Use default view switching. */
2939 OPEN_SPLIT = 1, /* Split current view. */
2940 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2941 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2942 OPEN_PREPARED = 32, /* Open already prepared command. */
2946 open_view(struct view *prev, enum request request, enum open_flags flags)
2948 bool split = !!(flags & OPEN_SPLIT);
2949 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2950 bool nomaximize = !!(flags & OPEN_REFRESH);
2951 struct view *view = VIEW(request);
2952 int nviews = displayed_views();
2953 struct view *base_view = display[0];
2955 if (view == prev && nviews == 1 && !reload) {
2956 report("Already in %s view", view->name);
2960 if (view->git_dir && !opt_git_dir[0]) {
2961 report("The %s view is disabled in pager view", view->name);
2968 } else if (!nomaximize) {
2969 /* Maximize the current view. */
2970 memset(display, 0, sizeof(display));
2972 display[current_view] = view;
2975 /* Resize the view when switching between split- and full-screen,
2976 * or when switching between two different full-screen views. */
2977 if (nviews != displayed_views() ||
2978 (nviews == 1 && base_view != display[0]))
2981 if (view->ops->open) {
2983 end_update(view, TRUE);
2984 if (!view->ops->open(view)) {
2985 report("Failed to load %s view", view->name);
2988 restore_view_position(view);
2990 } else if ((reload || strcmp(view->vid, view->id)) &&
2991 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2992 report("Failed to load %s view", view->name);
2996 if (split && prev->lineno - prev->offset >= prev->height) {
2997 /* Take the title line into account. */
2998 int lines = prev->lineno - prev->offset - prev->height + 1;
3000 /* Scroll the view that was split if the current line is
3001 * outside the new limited view. */
3002 do_scroll_view(prev, lines);
3005 if (prev && view != prev) {
3007 /* "Blur" the previous view. */
3008 update_view_title(prev);
3011 view->parent = prev;
3014 if (view->pipe && view->lines == 0) {
3015 /* Clear the old view and let the incremental updating refill
3018 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
3020 } else if (view_is_displayed(view)) {
3027 open_external_viewer(const char *argv[], const char *dir)
3029 def_prog_mode(); /* save current tty modes */
3030 endwin(); /* restore original tty modes */
3031 run_io_fg(argv, dir);
3032 fprintf(stderr, "Press Enter to continue");
3035 redraw_display(TRUE);
3039 open_mergetool(const char *file)
3041 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
3043 open_external_viewer(mergetool_argv, opt_cdup);
3047 open_editor(bool from_root, const char *file)
3049 const char *editor_argv[] = { "vi", file, NULL };
3052 editor = getenv("GIT_EDITOR");
3053 if (!editor && *opt_editor)
3054 editor = opt_editor;
3056 editor = getenv("VISUAL");
3058 editor = getenv("EDITOR");
3062 editor_argv[0] = editor;
3063 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3067 open_run_request(enum request request)
3069 struct run_request *req = get_run_request(request);
3070 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3073 report("Unknown run request");
3077 if (format_argv(argv, req->argv, FORMAT_ALL))
3078 open_external_viewer(argv, NULL);
3083 * User request switch noodle
3087 view_driver(struct view *view, enum request request)
3091 if (request == REQ_NONE) {
3096 if (request > REQ_NONE) {
3097 open_run_request(request);
3098 /* FIXME: When all views can refresh always do this. */
3099 if (view == VIEW(REQ_VIEW_STATUS) ||
3100 view == VIEW(REQ_VIEW_MAIN) ||
3101 view == VIEW(REQ_VIEW_LOG) ||
3102 view == VIEW(REQ_VIEW_STAGE))
3103 request = REQ_REFRESH;
3108 if (view && view->lines) {
3109 request = view->ops->request(view, request, &view->line[view->lineno]);
3110 if (request == REQ_NONE)
3117 case REQ_MOVE_PAGE_UP:
3118 case REQ_MOVE_PAGE_DOWN:
3119 case REQ_MOVE_FIRST_LINE:
3120 case REQ_MOVE_LAST_LINE:
3121 move_view(view, request);
3124 case REQ_SCROLL_LEFT:
3125 case REQ_SCROLL_RIGHT:
3126 case REQ_SCROLL_LINE_DOWN:
3127 case REQ_SCROLL_LINE_UP:
3128 case REQ_SCROLL_PAGE_DOWN:
3129 case REQ_SCROLL_PAGE_UP:
3130 scroll_view(view, request);
3133 case REQ_VIEW_BLAME:
3135 report("No file chosen, press %s to open tree view",
3136 get_key(REQ_VIEW_TREE));
3139 open_view(view, request, OPEN_DEFAULT);
3144 report("No file chosen, press %s to open tree view",
3145 get_key(REQ_VIEW_TREE));
3148 open_view(view, request, OPEN_DEFAULT);
3151 case REQ_VIEW_PAGER:
3152 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3153 report("No pager content, press %s to run command from prompt",
3154 get_key(REQ_PROMPT));
3157 open_view(view, request, OPEN_DEFAULT);
3160 case REQ_VIEW_STAGE:
3161 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3162 report("No stage content, press %s to open the status view and choose file",
3163 get_key(REQ_VIEW_STATUS));
3166 open_view(view, request, OPEN_DEFAULT);
3169 case REQ_VIEW_STATUS:
3170 if (opt_is_inside_work_tree == FALSE) {
3171 report("The status view requires a working tree");
3174 open_view(view, request, OPEN_DEFAULT);
3182 open_view(view, request, OPEN_DEFAULT);
3187 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3189 if ((view == VIEW(REQ_VIEW_DIFF) &&
3190 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3191 (view == VIEW(REQ_VIEW_DIFF) &&
3192 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3193 (view == VIEW(REQ_VIEW_STAGE) &&
3194 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3195 (view == VIEW(REQ_VIEW_BLOB) &&
3196 view->parent == VIEW(REQ_VIEW_TREE))) {
3199 view = view->parent;
3200 line = view->lineno;
3201 move_view(view, request);
3202 if (view_is_displayed(view))
3203 update_view_title(view);
3204 if (line != view->lineno)
3205 view->ops->request(view, REQ_ENTER,
3206 &view->line[view->lineno]);
3209 move_view(view, request);
3215 int nviews = displayed_views();
3216 int next_view = (current_view + 1) % nviews;
3218 if (next_view == current_view) {
3219 report("Only one view is displayed");
3223 current_view = next_view;
3224 /* Blur out the title of the previous view. */
3225 update_view_title(view);
3230 report("Refreshing is not yet supported for the %s view", view->name);
3234 if (displayed_views() == 2)
3235 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3238 case REQ_TOGGLE_LINENO:
3239 toggle_view_option(&opt_line_number, "line numbers");
3242 case REQ_TOGGLE_DATE:
3243 toggle_view_option(&opt_date, "date display");
3246 case REQ_TOGGLE_AUTHOR:
3247 toggle_view_option(&opt_author, "author display");
3250 case REQ_TOGGLE_REV_GRAPH:
3251 toggle_view_option(&opt_rev_graph, "revision graph display");
3254 case REQ_TOGGLE_REFS:
3255 toggle_view_option(&opt_show_refs, "reference display");
3259 case REQ_SEARCH_BACK:
3260 search_view(view, request);
3265 find_next(view, request);
3268 case REQ_STOP_LOADING:
3269 for (i = 0; i < ARRAY_SIZE(views); i++) {
3272 report("Stopped loading the %s view", view->name),
3273 end_update(view, TRUE);
3277 case REQ_SHOW_VERSION:
3278 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3281 case REQ_SCREEN_REDRAW:
3282 redraw_display(TRUE);
3286 report("Nothing to edit");
3290 report("Nothing to enter");
3293 case REQ_VIEW_CLOSE:
3294 /* XXX: Mark closed views by letting view->parent point to the
3295 * view itself. Parents to closed view should never be
3298 view->parent->parent != view->parent) {
3299 memset(display, 0, sizeof(display));
3301 display[current_view] = view->parent;
3302 view->parent = view;
3304 redraw_display(FALSE);
3313 report("Unknown key, press 'h' for help");
3322 * View backend utilities
3326 parse_timezone(time_t *time, const char *zone)
3330 tz = ('0' - zone[1]) * 60 * 60 * 10;
3331 tz += ('0' - zone[2]) * 60 * 60;
3332 tz += ('0' - zone[3]) * 60;
3333 tz += ('0' - zone[4]);
3341 /* Parse author lines where the name may be empty:
3342 * author <email@address.tld> 1138474660 +0100
3345 parse_author_line(char *ident, char *author, size_t authorsize, struct tm *tm)
3347 char *nameend = strchr(ident, '<');
3348 char *emailend = strchr(ident, '>');
3350 if (nameend && emailend)
3351 *nameend = *emailend = 0;
3352 ident = chomp_string(ident);
3355 ident = chomp_string(nameend + 1);
3360 string_ncopy_do(author, authorsize, ident, strlen(ident));
3362 /* Parse epoch and timezone */
3363 if (emailend && emailend[1] == ' ') {
3364 char *secs = emailend + 2;
3365 char *zone = strchr(secs, ' ');
3366 time_t time = (time_t) atol(secs);
3368 if (zone && strlen(zone) == STRING_SIZE(" +0700"))
3369 parse_timezone(&time, zone + 1);
3371 gmtime_r(&time, tm);
3375 static enum input_status
3376 select_commit_parent_handler(void *data, char *buf, int c)
3378 size_t parents = *(size_t *) data;
3385 parent = atoi(buf) * 10;
3388 if (parent > parents)
3394 select_commit_parent(const char *id, char rev[SIZEOF_REV])
3396 char buf[SIZEOF_STR * 4];
3397 const char *revlist_argv[] = {
3398 "git", "rev-list", "-1", "--parents", id, NULL
3402 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3403 !*chomp_string(buf) ||
3404 (parents = (strlen(buf) / 40) - 1) < 0) {
3405 report("Failed to get parent information");
3408 } else if (parents == 0) {
3409 report("The selected commit has no parents");
3414 char prompt[SIZEOF_STR];
3417 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3419 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3422 parents = atoi(result);
3425 string_copy_rev(rev, &buf[41 * parents]);
3434 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3436 char text[SIZEOF_STR];
3438 if (opt_line_number && draw_lineno(view, lineno))
3441 string_expand(text, sizeof(text), line->data, opt_tab_size);
3442 draw_text(view, line->type, text, TRUE);
3447 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3449 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3450 char refbuf[SIZEOF_STR];
3453 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3454 ref = chomp_string(refbuf);
3459 /* This is the only fatal call, since it can "corrupt" the buffer. */
3460 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3467 add_pager_refs(struct view *view, struct line *line)
3469 char buf[SIZEOF_STR];
3470 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3472 size_t bufpos = 0, refpos = 0;
3473 const char *sep = "Refs: ";
3474 bool is_tag = FALSE;
3476 assert(line->type == LINE_COMMIT);
3478 refs = get_refs(commit_id);
3480 if (view == VIEW(REQ_VIEW_DIFF))
3481 goto try_add_describe_ref;
3486 struct ref *ref = refs[refpos];
3487 const char *fmt = ref->tag ? "%s[%s]" :
3488 ref->remote ? "%s<%s>" : "%s%s";
3490 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3495 } while (refs[refpos++]->next);
3497 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3498 try_add_describe_ref:
3499 /* Add <tag>-g<commit_id> "fake" reference. */
3500 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3507 add_line_text(view, buf, LINE_PP_REFS);
3511 pager_read(struct view *view, char *data)
3518 line = add_line_text(view, data, get_line_type(data));
3522 if (line->type == LINE_COMMIT &&
3523 (view == VIEW(REQ_VIEW_DIFF) ||
3524 view == VIEW(REQ_VIEW_LOG)))
3525 add_pager_refs(view, line);
3531 pager_request(struct view *view, enum request request, struct line *line)
3535 if (request != REQ_ENTER)
3538 if (line->type == LINE_COMMIT &&
3539 (view == VIEW(REQ_VIEW_LOG) ||
3540 view == VIEW(REQ_VIEW_PAGER))) {
3541 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3545 /* Always scroll the view even if it was split. That way
3546 * you can use Enter to scroll through the log view and
3547 * split open each commit diff. */
3548 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3550 /* FIXME: A minor workaround. Scrolling the view will call report("")
3551 * but if we are scrolling a non-current view this won't properly
3552 * update the view title. */
3554 update_view_title(view);
3560 pager_grep(struct view *view, struct line *line)
3563 char *text = line->data;
3568 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3575 pager_select(struct view *view, struct line *line)
3577 if (line->type == LINE_COMMIT) {
3578 char *text = (char *)line->data + STRING_SIZE("commit ");
3580 if (view != VIEW(REQ_VIEW_PAGER))
3581 string_copy_rev(view->ref, text);
3582 string_copy_rev(ref_commit, text);
3586 static struct view_ops pager_ops = {
3597 static const char *log_argv[SIZEOF_ARG] = {
3598 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3602 log_request(struct view *view, enum request request, struct line *line)
3607 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3610 return pager_request(view, request, line);
3614 static struct view_ops log_ops = {
3625 static const char *diff_argv[SIZEOF_ARG] = {
3626 "git", "show", "--pretty=fuller", "--no-color", "--root",
3627 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3630 static struct view_ops diff_ops = {
3646 help_open(struct view *view)
3648 char buf[SIZEOF_STR];
3652 if (view->lines > 0)
3655 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3657 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3660 if (req_info[i].request == REQ_NONE)
3663 if (!req_info[i].request) {
3664 add_line_text(view, "", LINE_DEFAULT);
3665 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3669 key = get_key(req_info[i].request);
3671 key = "(no key defined)";
3673 for (bufpos = 0; bufpos <= req_info[i].namelen; bufpos++) {
3674 buf[bufpos] = tolower(req_info[i].name[bufpos]);
3675 if (buf[bufpos] == '_')
3679 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s",
3680 key, buf, req_info[i].help);
3684 add_line_text(view, "", LINE_DEFAULT);
3685 add_line_text(view, "External commands:", LINE_DEFAULT);
3688 for (i = 0; i < run_requests; i++) {
3689 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3696 key = get_key_name(req->key);
3698 key = "(no key defined)";
3700 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3701 if (!string_format_from(buf, &bufpos, "%s%s",
3702 argc ? " " : "", req->argv[argc]))
3705 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3706 keymap_table[req->keymap].name, key, buf);
3712 static struct view_ops help_ops = {
3728 struct tree_stack_entry {
3729 struct tree_stack_entry *prev; /* Entry below this in the stack */
3730 unsigned long lineno; /* Line number to restore */
3731 char *name; /* Position of name in opt_path */
3734 /* The top of the path stack. */
3735 static struct tree_stack_entry *tree_stack = NULL;
3736 unsigned long tree_lineno = 0;
3739 pop_tree_stack_entry(void)
3741 struct tree_stack_entry *entry = tree_stack;
3743 tree_lineno = entry->lineno;
3745 tree_stack = entry->prev;
3750 push_tree_stack_entry(const char *name, unsigned long lineno)
3752 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3753 size_t pathlen = strlen(opt_path);
3758 entry->prev = tree_stack;
3759 entry->name = opt_path + pathlen;
3762 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3763 pop_tree_stack_entry();
3767 /* Move the current line to the first tree entry. */
3769 entry->lineno = lineno;
3772 /* Parse output from git-ls-tree(1):
3774 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3777 #define SIZEOF_TREE_ATTR \
3778 STRING_SIZE("100644 blob f931e1d229c3e185caad4449bf5b66ed72462657\t")
3780 #define SIZEOF_TREE_MODE \
3781 STRING_SIZE("100644 ")
3783 #define TREE_ID_OFFSET \
3784 STRING_SIZE("100644 blob ")
3787 char id[SIZEOF_REV];
3789 struct tm time; /* Date from the author ident. */
3790 char author[75]; /* Author of the commit. */
3795 tree_path(struct line *line)
3797 return ((struct tree_entry *) line->data)->name;
3802 tree_compare_entry(struct line *line1, struct line *line2)
3804 if (line1->type != line2->type)
3805 return line1->type == LINE_TREE_DIR ? -1 : 1;
3806 return strcmp(tree_path(line1), tree_path(line2));
3809 static struct line *
3810 tree_entry(struct view *view, enum line_type type, const char *path,
3811 const char *mode, const char *id)
3813 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3814 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3816 if (!entry || !line) {
3821 strncpy(entry->name, path, strlen(path));
3823 entry->mode = strtoul(mode, NULL, 8);
3825 string_copy_rev(entry->id, id);
3831 tree_read_date(struct view *view, char *text, bool *read_date)
3833 static char author_name[SIZEOF_STR];
3834 static struct tm author_time;
3836 if (!text && *read_date) {
3841 char *path = *opt_path ? opt_path : ".";
3842 /* Find next entry to process */
3843 const char *log_file[] = {
3844 "git", "log", "--no-color", "--pretty=raw",
3845 "--cc", "--raw", view->id, "--", path, NULL
3850 tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL);
3851 report("Tree is empty");
3855 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3856 report("Failed to load tree data");
3860 done_io(view->pipe);
3865 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3866 parse_author_line(text + STRING_SIZE("author "),
3867 author_name, sizeof(author_name), &author_time);
3869 } else if (*text == ':') {
3871 size_t annotated = 1;
3874 pos = strchr(text, '\t');
3878 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3879 text += strlen(opt_prefix);
3880 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3881 text += strlen(opt_path);
3882 pos = strchr(text, '/');
3886 for (i = 1; i < view->lines; i++) {
3887 struct line *line = &view->line[i];
3888 struct tree_entry *entry = line->data;
3890 annotated += !!*entry->author;
3891 if (*entry->author || strcmp(entry->name, text))
3894 string_copy(entry->author, author_name);
3895 memcpy(&entry->time, &author_time, sizeof(entry->time));
3900 if (annotated == view->lines)
3901 kill_io(view->pipe);
3907 tree_read(struct view *view, char *text)
3909 static bool read_date = FALSE;
3910 struct tree_entry *data;
3911 struct line *entry, *line;
3912 enum line_type type;
3913 size_t textlen = text ? strlen(text) : 0;
3914 char *path = text + SIZEOF_TREE_ATTR;
3916 if (read_date || !text)
3917 return tree_read_date(view, text, &read_date);
3919 if (textlen <= SIZEOF_TREE_ATTR)
3921 if (view->lines == 0 &&
3922 !tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL))
3925 /* Strip the path part ... */
3927 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3928 size_t striplen = strlen(opt_path);
3930 if (pathlen > striplen)
3931 memmove(path, path + striplen,
3932 pathlen - striplen + 1);
3934 /* Insert "link" to parent directory. */
3935 if (view->lines == 1 &&
3936 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3940 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3941 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3946 /* Skip "Directory ..." and ".." line. */
3947 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3948 if (tree_compare_entry(line, entry) <= 0)
3951 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3955 for (; line <= entry; line++)
3956 line->dirty = line->cleareol = 1;
3960 if (tree_lineno > view->lineno) {
3961 view->lineno = tree_lineno;
3969 tree_draw(struct view *view, struct line *line, unsigned int lineno)
3971 struct tree_entry *entry = line->data;
3973 if (line->type == LINE_TREE_HEAD) {
3974 if (draw_text(view, line->type, "Directory path /", TRUE))
3977 if (draw_mode(view, entry->mode))
3980 if (opt_author && draw_author(view, entry->author))
3983 if (opt_date && draw_date(view, *entry->author ? &entry->time : NULL))
3986 if (draw_text(view, line->type, entry->name, TRUE))
3994 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
3995 int fd = mkstemp(file);
3998 report("Failed to create temporary file");
3999 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
4000 report("Failed to save blob data to file");
4002 open_editor(FALSE, file);
4008 tree_request(struct view *view, enum request request, struct line *line)
4010 enum open_flags flags;
4013 case REQ_VIEW_BLAME:
4014 if (line->type != LINE_TREE_FILE) {
4015 report("Blame only supported for files");
4019 string_copy(opt_ref, view->vid);
4023 if (line->type != LINE_TREE_FILE) {
4024 report("Edit only supported for files");
4025 } else if (!is_head_commit(view->vid)) {
4028 open_editor(TRUE, opt_file);
4034 /* quit view if at top of tree */
4035 return REQ_VIEW_CLOSE;
4038 line = &view->line[1];
4048 /* Cleanup the stack if the tree view is at a different tree. */
4049 while (!*opt_path && tree_stack)
4050 pop_tree_stack_entry();
4052 switch (line->type) {
4054 /* Depending on whether it is a subdirectory or parent link
4055 * mangle the path buffer. */
4056 if (line == &view->line[1] && *opt_path) {
4057 pop_tree_stack_entry();
4060 const char *basename = tree_path(line);
4062 push_tree_stack_entry(basename, view->lineno);
4065 /* Trees and subtrees share the same ID, so they are not not
4066 * unique like blobs. */
4067 flags = OPEN_RELOAD;
4068 request = REQ_VIEW_TREE;
4071 case LINE_TREE_FILE:
4072 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4073 request = REQ_VIEW_BLOB;
4080 open_view(view, request, flags);
4081 if (request == REQ_VIEW_TREE)
4082 view->lineno = tree_lineno;
4088 tree_select(struct view *view, struct line *line)
4090 struct tree_entry *entry = line->data;
4092 if (line->type == LINE_TREE_FILE) {
4093 string_copy_rev(ref_blob, entry->id);
4094 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4096 } else if (line->type != LINE_TREE_DIR) {
4100 string_copy_rev(view->ref, entry->id);
4103 static const char *tree_argv[SIZEOF_ARG] = {
4104 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4107 static struct view_ops tree_ops = {
4119 blob_read(struct view *view, char *line)
4123 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4127 blob_request(struct view *view, enum request request, struct line *line)
4134 return pager_request(view, request, line);
4138 static const char *blob_argv[SIZEOF_ARG] = {
4139 "git", "cat-file", "blob", "%(blob)", NULL
4142 static struct view_ops blob_ops = {
4156 * Loading the blame view is a two phase job:
4158 * 1. File content is read either using opt_file from the
4159 * filesystem or using git-cat-file.
4160 * 2. Then blame information is incrementally added by
4161 * reading output from git-blame.
4164 static const char *blame_head_argv[] = {
4165 "git", "blame", "--incremental", "--", "%(file)", NULL
4168 static const char *blame_ref_argv[] = {
4169 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4172 static const char *blame_cat_file_argv[] = {
4173 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4176 struct blame_commit {
4177 char id[SIZEOF_REV]; /* SHA1 ID. */
4178 char title[128]; /* First line of the commit message. */
4179 char author[75]; /* Author of the commit. */
4180 struct tm time; /* Date from the author ident. */
4181 char filename[128]; /* Name of file. */
4182 bool has_previous; /* Was a "previous" line detected. */
4186 struct blame_commit *commit;
4191 blame_open(struct view *view)
4193 if (*opt_ref || !io_open(&view->io, opt_file)) {
4194 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4198 setup_update(view, opt_file);
4199 string_format(view->ref, "%s ...", opt_file);
4204 static struct blame_commit *
4205 get_blame_commit(struct view *view, const char *id)
4209 for (i = 0; i < view->lines; i++) {
4210 struct blame *blame = view->line[i].data;
4215 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4216 return blame->commit;
4220 struct blame_commit *commit = calloc(1, sizeof(*commit));
4223 string_ncopy(commit->id, id, SIZEOF_REV);
4229 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4231 const char *pos = *posref;
4234 pos = strchr(pos + 1, ' ');
4235 if (!pos || !isdigit(pos[1]))
4237 *number = atoi(pos + 1);
4238 if (*number < min || *number > max)
4245 static struct blame_commit *
4246 parse_blame_commit(struct view *view, const char *text, int *blamed)
4248 struct blame_commit *commit;
4249 struct blame *blame;
4250 const char *pos = text + SIZEOF_REV - 1;
4254 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
4257 if (!parse_number(&pos, &lineno, 1, view->lines) ||
4258 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4261 commit = get_blame_commit(view, text);
4267 struct line *line = &view->line[lineno + group - 1];
4270 blame->commit = commit;
4278 blame_read_file(struct view *view, const char *line, bool *read_file)
4281 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4284 if (view->lines == 0 && !view->parent)
4285 die("No blame exist for %s", view->vid);
4287 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4288 report("Failed to load blame data");
4292 done_io(view->pipe);
4298 size_t linelen = string_expand_length(line, opt_tab_size);
4299 struct blame *blame = malloc(sizeof(*blame) + linelen);
4304 blame->commit = NULL;
4305 string_expand(blame->text, linelen + 1, line, opt_tab_size);
4306 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4311 match_blame_header(const char *name, char **line)
4313 size_t namelen = strlen(name);
4314 bool matched = !strncmp(name, *line, namelen);
4323 blame_read(struct view *view, char *line)
4325 static struct blame_commit *commit = NULL;
4326 static int blamed = 0;
4327 static time_t author_time;
4328 static bool read_file = TRUE;
4331 return blame_read_file(view, line, &read_file);
4338 string_format(view->ref, "%s", view->vid);
4339 if (view_is_displayed(view)) {
4340 update_view_title(view);
4341 redraw_view_from(view, 0);
4347 commit = parse_blame_commit(view, line, &blamed);
4348 string_format(view->ref, "%s %2d%%", view->vid,
4349 view->lines ? blamed * 100 / view->lines : 0);
4351 } else if (match_blame_header("author ", &line)) {
4352 string_ncopy(commit->author, line, strlen(line));
4354 } else if (match_blame_header("author-time ", &line)) {
4355 author_time = (time_t) atol(line);
4357 } else if (match_blame_header("author-tz ", &line)) {
4358 parse_timezone(&author_time, line);
4359 gmtime_r(&author_time, &commit->time);
4361 } else if (match_blame_header("summary ", &line)) {
4362 string_ncopy(commit->title, line, strlen(line));
4364 } else if (match_blame_header("previous ", &line)) {
4365 commit->has_previous = TRUE;
4367 } else if (match_blame_header("filename ", &line)) {
4368 string_ncopy(commit->filename, line, strlen(line));
4376 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4378 struct blame *blame = line->data;
4379 struct tm *time = NULL;
4380 const char *id = NULL, *author = NULL;
4382 if (blame->commit && *blame->commit->filename) {
4383 id = blame->commit->id;
4384 author = blame->commit->author;
4385 time = &blame->commit->time;
4388 if (opt_date && draw_date(view, time))
4391 if (opt_author && draw_author(view, author))
4394 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4397 if (draw_lineno(view, lineno))
4400 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4405 check_blame_commit(struct blame *blame)
4408 report("Commit data not loaded yet");
4409 else if (!strcmp(blame->commit->id, NULL_ID))
4410 report("No commit exist for the selected line");
4417 blame_request(struct view *view, enum request request, struct line *line)
4419 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4420 struct blame *blame = line->data;
4423 case REQ_VIEW_BLAME:
4424 if (check_blame_commit(blame)) {
4425 string_copy(opt_ref, blame->commit->id);
4426 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4431 if (check_blame_commit(blame) &&
4432 select_commit_parent(blame->commit->id, opt_ref))
4433 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4437 if (!blame->commit) {
4438 report("No commit loaded yet");
4442 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4443 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4446 if (!strcmp(blame->commit->id, NULL_ID)) {
4447 struct view *diff = VIEW(REQ_VIEW_DIFF);
4448 const char *diff_index_argv[] = {
4449 "git", "diff-index", "--root", "--patch-with-stat",
4450 "-C", "-M", "HEAD", "--", view->vid, NULL
4453 if (!blame->commit->has_previous) {
4454 diff_index_argv[1] = "diff";
4455 diff_index_argv[2] = "--no-color";
4456 diff_index_argv[6] = "--";
4457 diff_index_argv[7] = "/dev/null";
4460 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4461 report("Failed to allocate diff command");
4464 flags |= OPEN_PREPARED;
4467 open_view(view, REQ_VIEW_DIFF, flags);
4468 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4469 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4480 blame_grep(struct view *view, struct line *line)
4482 struct blame *blame = line->data;
4483 struct blame_commit *commit = blame->commit;
4486 #define MATCH(text, on) \
4487 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4490 char buf[DATE_COLS + 1];
4492 if (MATCH(commit->title, 1) ||
4493 MATCH(commit->author, opt_author) ||
4494 MATCH(commit->id, opt_date))
4497 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4502 return MATCH(blame->text, 1);
4508 blame_select(struct view *view, struct line *line)
4510 struct blame *blame = line->data;
4511 struct blame_commit *commit = blame->commit;
4516 if (!strcmp(commit->id, NULL_ID))
4517 string_ncopy(ref_commit, "HEAD", 4);
4519 string_copy_rev(ref_commit, commit->id);
4522 static struct view_ops blame_ops = {
4541 char rev[SIZEOF_REV];
4542 char name[SIZEOF_STR];
4546 char rev[SIZEOF_REV];
4547 char name[SIZEOF_STR];
4551 static char status_onbranch[SIZEOF_STR];
4552 static struct status stage_status;
4553 static enum line_type stage_line_type;
4554 static size_t stage_chunks;
4555 static int *stage_chunk;
4557 /* This should work even for the "On branch" line. */
4559 status_has_none(struct view *view, struct line *line)
4561 return line < view->line + view->lines && !line[1].data;
4564 /* Get fields from the diff line:
4565 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4568 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4570 const char *old_mode = buf + 1;
4571 const char *new_mode = buf + 8;
4572 const char *old_rev = buf + 15;
4573 const char *new_rev = buf + 56;
4574 const char *status = buf + 97;
4577 old_mode[-1] != ':' ||
4578 new_mode[-1] != ' ' ||
4579 old_rev[-1] != ' ' ||
4580 new_rev[-1] != ' ' ||
4584 file->status = *status;
4586 string_copy_rev(file->old.rev, old_rev);
4587 string_copy_rev(file->new.rev, new_rev);
4589 file->old.mode = strtoul(old_mode, NULL, 8);
4590 file->new.mode = strtoul(new_mode, NULL, 8);
4592 file->old.name[0] = file->new.name[0] = 0;
4598 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4600 struct status *unmerged = NULL;
4604 if (!run_io(&io, argv, NULL, IO_RD))
4607 add_line_data(view, NULL, type);
4609 while ((buf = io_get(&io, 0, TRUE))) {
4610 struct status *file = unmerged;
4613 file = calloc(1, sizeof(*file));
4614 if (!file || !add_line_data(view, file, type))
4618 /* Parse diff info part. */
4620 file->status = status;
4622 string_copy(file->old.rev, NULL_ID);
4624 } else if (!file->status || file == unmerged) {
4625 if (!status_get_diff(file, buf, strlen(buf)))
4628 buf = io_get(&io, 0, TRUE);
4632 /* Collapse all modified entries that follow an
4633 * associated unmerged entry. */
4634 if (unmerged == file) {
4635 unmerged->status = 'U';
4637 } else if (file->status == 'U') {
4642 /* Grab the old name for rename/copy. */
4643 if (!*file->old.name &&
4644 (file->status == 'R' || file->status == 'C')) {
4645 string_ncopy(file->old.name, buf, strlen(buf));
4647 buf = io_get(&io, 0, TRUE);
4652 /* git-ls-files just delivers a NUL separated list of
4653 * file names similar to the second half of the
4654 * git-diff-* output. */
4655 string_ncopy(file->new.name, buf, strlen(buf));
4656 if (!*file->old.name)
4657 string_copy(file->old.name, file->new.name);
4661 if (io_error(&io)) {
4667 if (!view->line[view->lines - 1].data)
4668 add_line_data(view, NULL, LINE_STAT_NONE);
4674 /* Don't show unmerged entries in the staged section. */
4675 static const char *status_diff_index_argv[] = {
4676 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4677 "--cached", "-M", "HEAD", NULL
4680 static const char *status_diff_files_argv[] = {
4681 "git", "diff-files", "-z", NULL
4684 static const char *status_list_other_argv[] = {
4685 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4688 static const char *status_list_no_head_argv[] = {
4689 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4692 static const char *update_index_argv[] = {
4693 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4696 /* Restore the previous line number to stay in the context or select a
4697 * line with something that can be updated. */
4699 status_restore(struct view *view)
4701 if (view->p_lineno >= view->lines)
4702 view->p_lineno = view->lines - 1;
4703 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4705 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4708 /* If the above fails, always skip the "On branch" line. */
4709 if (view->p_lineno < view->lines)
4710 view->lineno = view->p_lineno;
4714 if (view->lineno < view->offset)
4715 view->offset = view->lineno;
4716 else if (view->offset + view->height <= view->lineno)
4717 view->offset = view->lineno - view->height + 1;
4719 view->p_restore = FALSE;
4723 status_update_onbranch(void)
4725 static const char *paths[][2] = {
4726 { "rebase-apply/rebasing", "Rebasing" },
4727 { "rebase-apply/applying", "Applying mailbox" },
4728 { "rebase-apply/", "Rebasing mailbox" },
4729 { "rebase-merge/interactive", "Interactive rebase" },
4730 { "rebase-merge/", "Rebase merge" },
4731 { "MERGE_HEAD", "Merging" },
4732 { "BISECT_LOG", "Bisecting" },
4733 { "HEAD", "On branch" },
4735 char buf[SIZEOF_STR];
4739 if (is_initial_commit()) {
4740 string_copy(status_onbranch, "Initial commit");
4744 for (i = 0; i < ARRAY_SIZE(paths); i++) {
4745 char *head = opt_head;
4747 if (!string_format(buf, "%s/%s", opt_git_dir, paths[i][0]) ||
4748 lstat(buf, &stat) < 0)
4754 if (string_format(buf, "%s/rebase-merge/head-name", opt_git_dir) &&
4755 io_open(&io, buf) &&
4756 io_read_buf(&io, buf, sizeof(buf))) {
4757 head = chomp_string(buf);
4758 if (!prefixcmp(head, "refs/heads/"))
4759 head += STRING_SIZE("refs/heads/");
4763 if (!string_format(status_onbranch, "%s %s", paths[i][1], head))
4764 string_copy(status_onbranch, opt_head);
4768 string_copy(status_onbranch, "Not currently on any branch");
4771 /* First parse staged info using git-diff-index(1), then parse unstaged
4772 * info using git-diff-files(1), and finally untracked files using
4773 * git-ls-files(1). */
4775 status_open(struct view *view)
4779 add_line_data(view, NULL, LINE_STAT_HEAD);
4780 status_update_onbranch();
4782 run_io_bg(update_index_argv);
4784 if (is_initial_commit()) {
4785 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4787 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4791 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4792 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4795 /* Restore the exact position or use the specialized restore
4797 if (!view->p_restore)
4798 status_restore(view);
4803 status_draw(struct view *view, struct line *line, unsigned int lineno)
4805 struct status *status = line->data;
4806 enum line_type type;
4810 switch (line->type) {
4811 case LINE_STAT_STAGED:
4812 type = LINE_STAT_SECTION;
4813 text = "Changes to be committed:";
4816 case LINE_STAT_UNSTAGED:
4817 type = LINE_STAT_SECTION;
4818 text = "Changed but not updated:";
4821 case LINE_STAT_UNTRACKED:
4822 type = LINE_STAT_SECTION;
4823 text = "Untracked files:";
4826 case LINE_STAT_NONE:
4827 type = LINE_DEFAULT;
4828 text = " (no files)";
4831 case LINE_STAT_HEAD:
4832 type = LINE_STAT_HEAD;
4833 text = status_onbranch;
4840 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4842 buf[0] = status->status;
4843 if (draw_text(view, line->type, buf, TRUE))
4845 type = LINE_DEFAULT;
4846 text = status->new.name;
4849 draw_text(view, type, text, TRUE);
4854 status_enter(struct view *view, struct line *line)
4856 struct status *status = line->data;
4857 const char *oldpath = status ? status->old.name : NULL;
4858 /* Diffs for unmerged entries are empty when passing the new
4859 * path, so leave it empty. */
4860 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4862 enum open_flags split;
4863 struct view *stage = VIEW(REQ_VIEW_STAGE);
4865 if (line->type == LINE_STAT_NONE ||
4866 (!status && line[1].type == LINE_STAT_NONE)) {
4867 report("No file to diff");
4871 switch (line->type) {
4872 case LINE_STAT_STAGED:
4873 if (is_initial_commit()) {
4874 const char *no_head_diff_argv[] = {
4875 "git", "diff", "--no-color", "--patch-with-stat",
4876 "--", "/dev/null", newpath, NULL
4879 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4882 const char *index_show_argv[] = {
4883 "git", "diff-index", "--root", "--patch-with-stat",
4884 "-C", "-M", "--cached", "HEAD", "--",
4885 oldpath, newpath, NULL
4888 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4893 info = "Staged changes to %s";
4895 info = "Staged changes";
4898 case LINE_STAT_UNSTAGED:
4900 const char *files_show_argv[] = {
4901 "git", "diff-files", "--root", "--patch-with-stat",
4902 "-C", "-M", "--", oldpath, newpath, NULL
4905 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4908 info = "Unstaged changes to %s";
4910 info = "Unstaged changes";
4913 case LINE_STAT_UNTRACKED:
4915 report("No file to show");
4919 if (!suffixcmp(status->new.name, -1, "/")) {
4920 report("Cannot display a directory");
4924 if (!prepare_update_file(stage, newpath))
4926 info = "Untracked file %s";
4929 case LINE_STAT_HEAD:
4933 die("line type %d not handled in switch", line->type);
4936 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4937 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
4938 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4940 stage_status = *status;
4942 memset(&stage_status, 0, sizeof(stage_status));
4945 stage_line_type = line->type;
4947 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4954 status_exists(struct status *status, enum line_type type)
4956 struct view *view = VIEW(REQ_VIEW_STATUS);
4957 unsigned long lineno;
4959 for (lineno = 0; lineno < view->lines; lineno++) {
4960 struct line *line = &view->line[lineno];
4961 struct status *pos = line->data;
4963 if (line->type != type)
4965 if (!pos && (!status || !status->status) && line[1].data) {
4966 select_view_line(view, lineno);
4969 if (pos && !strcmp(status->new.name, pos->new.name)) {
4970 select_view_line(view, lineno);
4980 status_update_prepare(struct io *io, enum line_type type)
4982 const char *staged_argv[] = {
4983 "git", "update-index", "-z", "--index-info", NULL
4985 const char *others_argv[] = {
4986 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4990 case LINE_STAT_STAGED:
4991 return run_io(io, staged_argv, opt_cdup, IO_WR);
4993 case LINE_STAT_UNSTAGED:
4994 return run_io(io, others_argv, opt_cdup, IO_WR);
4996 case LINE_STAT_UNTRACKED:
4997 return run_io(io, others_argv, NULL, IO_WR);
5000 die("line type %d not handled in switch", type);
5006 status_update_write(struct io *io, struct status *status, enum line_type type)
5008 char buf[SIZEOF_STR];
5012 case LINE_STAT_STAGED:
5013 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
5016 status->old.name, 0))
5020 case LINE_STAT_UNSTAGED:
5021 case LINE_STAT_UNTRACKED:
5022 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
5027 die("line type %d not handled in switch", type);
5030 return io_write(io, buf, bufsize);
5034 status_update_file(struct status *status, enum line_type type)
5039 if (!status_update_prepare(&io, type))
5042 result = status_update_write(&io, status, type);
5048 status_update_files(struct view *view, struct line *line)
5052 struct line *pos = view->line + view->lines;
5056 if (!status_update_prepare(&io, line->type))
5059 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5062 for (file = 0, done = 0; result && file < files; line++, file++) {
5063 int almost_done = file * 100 / files;
5065 if (almost_done > done) {
5067 string_format(view->ref, "updating file %u of %u (%d%% done)",
5069 update_view_title(view);
5071 result = status_update_write(&io, line->data, line->type);
5079 status_update(struct view *view)
5081 struct line *line = &view->line[view->lineno];
5083 assert(view->lines);
5086 /* This should work even for the "On branch" line. */
5087 if (line < view->line + view->lines && !line[1].data) {
5088 report("Nothing to update");
5092 if (!status_update_files(view, line + 1)) {
5093 report("Failed to update file status");
5097 } else if (!status_update_file(line->data, line->type)) {
5098 report("Failed to update file status");
5106 status_revert(struct status *status, enum line_type type, bool has_none)
5108 if (!status || type != LINE_STAT_UNSTAGED) {
5109 if (type == LINE_STAT_STAGED) {
5110 report("Cannot revert changes to staged files");
5111 } else if (type == LINE_STAT_UNTRACKED) {
5112 report("Cannot revert changes to untracked files");
5113 } else if (has_none) {
5114 report("Nothing to revert");
5116 report("Cannot revert changes to multiple files");
5121 char mode[10] = "100644";
5122 const char *reset_argv[] = {
5123 "git", "update-index", "--cacheinfo", mode,
5124 status->old.rev, status->old.name, NULL
5126 const char *checkout_argv[] = {
5127 "git", "checkout", "--", status->old.name, NULL
5130 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5132 string_format(mode, "%o", status->old.mode);
5133 return (status->status != 'U' || run_io_fg(reset_argv, opt_cdup)) &&
5134 run_io_fg(checkout_argv, opt_cdup);
5139 status_request(struct view *view, enum request request, struct line *line)
5141 struct status *status = line->data;
5144 case REQ_STATUS_UPDATE:
5145 if (!status_update(view))
5149 case REQ_STATUS_REVERT:
5150 if (!status_revert(status, line->type, status_has_none(view, line)))
5154 case REQ_STATUS_MERGE:
5155 if (!status || status->status != 'U') {
5156 report("Merging only possible for files with unmerged status ('U').");
5159 open_mergetool(status->new.name);
5165 if (status->status == 'D') {
5166 report("File has been deleted.");
5170 open_editor(status->status != '?', status->new.name);
5173 case REQ_VIEW_BLAME:
5175 string_copy(opt_file, status->new.name);
5181 /* After returning the status view has been split to
5182 * show the stage view. No further reloading is
5184 status_enter(view, line);
5188 /* Simply reload the view. */
5195 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5201 status_select(struct view *view, struct line *line)
5203 struct status *status = line->data;
5204 char file[SIZEOF_STR] = "all files";
5208 if (status && !string_format(file, "'%s'", status->new.name))
5211 if (!status && line[1].type == LINE_STAT_NONE)
5214 switch (line->type) {
5215 case LINE_STAT_STAGED:
5216 text = "Press %s to unstage %s for commit";
5219 case LINE_STAT_UNSTAGED:
5220 text = "Press %s to stage %s for commit";
5223 case LINE_STAT_UNTRACKED:
5224 text = "Press %s to stage %s for addition";
5227 case LINE_STAT_HEAD:
5228 case LINE_STAT_NONE:
5229 text = "Nothing to update";
5233 die("line type %d not handled in switch", line->type);
5236 if (status && status->status == 'U') {
5237 text = "Press %s to resolve conflict in %s";
5238 key = get_key(REQ_STATUS_MERGE);
5241 key = get_key(REQ_STATUS_UPDATE);
5244 string_format(view->ref, text, key, file);
5248 status_grep(struct view *view, struct line *line)
5250 struct status *status = line->data;
5251 enum { S_STATUS, S_NAME, S_END } state;
5258 for (state = S_STATUS; state < S_END; state++) {
5262 case S_NAME: text = status->new.name; break;
5264 buf[0] = status->status;
5272 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5279 static struct view_ops status_ops = {
5292 stage_diff_write(struct io *io, struct line *line, struct line *end)
5294 while (line < end) {
5295 if (!io_write(io, line->data, strlen(line->data)) ||
5296 !io_write(io, "\n", 1))
5299 if (line->type == LINE_DIFF_CHUNK ||
5300 line->type == LINE_DIFF_HEADER)
5307 static struct line *
5308 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5310 for (; view->line < line; line--)
5311 if (line->type == type)
5318 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5320 const char *apply_argv[SIZEOF_ARG] = {
5321 "git", "apply", "--whitespace=nowarn", NULL
5323 struct line *diff_hdr;
5327 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5332 apply_argv[argc++] = "--cached";
5333 if (revert || stage_line_type == LINE_STAT_STAGED)
5334 apply_argv[argc++] = "-R";
5335 apply_argv[argc++] = "-";
5336 apply_argv[argc++] = NULL;
5337 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5340 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5341 !stage_diff_write(&io, chunk, view->line + view->lines))
5345 run_io_bg(update_index_argv);
5347 return chunk ? TRUE : FALSE;
5351 stage_update(struct view *view, struct line *line)
5353 struct line *chunk = NULL;
5355 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5356 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5359 if (!stage_apply_chunk(view, chunk, FALSE)) {
5360 report("Failed to apply chunk");
5364 } else if (!stage_status.status) {
5365 view = VIEW(REQ_VIEW_STATUS);
5367 for (line = view->line; line < view->line + view->lines; line++)
5368 if (line->type == stage_line_type)
5371 if (!status_update_files(view, line + 1)) {
5372 report("Failed to update files");
5376 } else if (!status_update_file(&stage_status, stage_line_type)) {
5377 report("Failed to update file");
5385 stage_revert(struct view *view, struct line *line)
5387 struct line *chunk = NULL;
5389 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5390 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5393 if (!prompt_yesno("Are you sure you want to revert changes?"))
5396 if (!stage_apply_chunk(view, chunk, TRUE)) {
5397 report("Failed to revert chunk");
5403 return status_revert(stage_status.status ? &stage_status : NULL,
5404 stage_line_type, FALSE);
5410 stage_next(struct view *view, struct line *line)
5414 if (!stage_chunks) {
5415 static size_t alloc = 0;
5418 for (line = view->line; line < view->line + view->lines; line++) {
5419 if (line->type != LINE_DIFF_CHUNK)
5422 tmp = realloc_items(stage_chunk, &alloc,
5423 stage_chunks, sizeof(*tmp));
5425 report("Allocation failure");
5430 stage_chunk[stage_chunks++] = line - view->line;
5434 for (i = 0; i < stage_chunks; i++) {
5435 if (stage_chunk[i] > view->lineno) {
5436 do_scroll_view(view, stage_chunk[i] - view->lineno);
5437 report("Chunk %d of %d", i + 1, stage_chunks);
5442 report("No next chunk found");
5446 stage_request(struct view *view, enum request request, struct line *line)
5449 case REQ_STATUS_UPDATE:
5450 if (!stage_update(view, line))
5454 case REQ_STATUS_REVERT:
5455 if (!stage_revert(view, line))
5459 case REQ_STAGE_NEXT:
5460 if (stage_line_type == LINE_STAT_UNTRACKED) {
5461 report("File is untracked; press %s to add",
5462 get_key(REQ_STATUS_UPDATE));
5465 stage_next(view, line);
5469 if (!stage_status.new.name[0])
5471 if (stage_status.status == 'D') {
5472 report("File has been deleted.");
5476 open_editor(stage_status.status != '?', stage_status.new.name);
5480 /* Reload everything ... */
5483 case REQ_VIEW_BLAME:
5484 if (stage_status.new.name[0]) {
5485 string_copy(opt_file, stage_status.new.name);
5491 return pager_request(view, request, line);
5497 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5498 open_view(view, REQ_VIEW_STATUS, OPEN_REFRESH);
5500 /* Check whether the staged entry still exists, and close the
5501 * stage view if it doesn't. */
5502 if (!status_exists(&stage_status, stage_line_type)) {
5503 status_restore(VIEW(REQ_VIEW_STATUS));
5504 return REQ_VIEW_CLOSE;
5507 if (stage_line_type == LINE_STAT_UNTRACKED) {
5508 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5509 report("Cannot display a directory");
5513 if (!prepare_update_file(view, stage_status.new.name)) {
5514 report("Failed to open file: %s", strerror(errno));
5518 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5523 static struct view_ops stage_ops = {
5540 char id[SIZEOF_REV]; /* SHA1 ID. */
5541 char title[128]; /* First line of the commit message. */
5542 char author[75]; /* Author of the commit. */
5543 struct tm time; /* Date from the author ident. */
5544 struct ref **refs; /* Repository references. */
5545 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5546 size_t graph_size; /* The width of the graph array. */
5547 bool has_parents; /* Rewritten --parents seen. */
5550 /* Size of rev graph with no "padding" columns */
5551 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5554 struct rev_graph *prev, *next, *parents;
5555 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5557 struct commit *commit;
5559 unsigned int boundary:1;
5562 /* Parents of the commit being visualized. */
5563 static struct rev_graph graph_parents[4];
5565 /* The current stack of revisions on the graph. */
5566 static struct rev_graph graph_stacks[4] = {
5567 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5568 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5569 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5570 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5574 graph_parent_is_merge(struct rev_graph *graph)
5576 return graph->parents->size > 1;
5580 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5582 struct commit *commit = graph->commit;
5584 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5585 commit->graph[commit->graph_size++] = symbol;
5589 clear_rev_graph(struct rev_graph *graph)
5591 graph->boundary = 0;
5592 graph->size = graph->pos = 0;
5593 graph->commit = NULL;
5594 memset(graph->parents, 0, sizeof(*graph->parents));
5598 done_rev_graph(struct rev_graph *graph)
5600 if (graph_parent_is_merge(graph) &&
5601 graph->pos < graph->size - 1 &&
5602 graph->next->size == graph->size + graph->parents->size - 1) {
5603 size_t i = graph->pos + graph->parents->size - 1;
5605 graph->commit->graph_size = i * 2;
5606 while (i < graph->next->size - 1) {
5607 append_to_rev_graph(graph, ' ');
5608 append_to_rev_graph(graph, '\\');
5613 clear_rev_graph(graph);
5617 push_rev_graph(struct rev_graph *graph, const char *parent)
5621 /* "Collapse" duplicate parents lines.
5623 * FIXME: This needs to also update update the drawn graph but
5624 * for now it just serves as a method for pruning graph lines. */
5625 for (i = 0; i < graph->size; i++)
5626 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5629 if (graph->size < SIZEOF_REVITEMS) {
5630 string_copy_rev(graph->rev[graph->size++], parent);
5635 get_rev_graph_symbol(struct rev_graph *graph)
5639 if (graph->boundary)
5640 symbol = REVGRAPH_BOUND;
5641 else if (graph->parents->size == 0)
5642 symbol = REVGRAPH_INIT;
5643 else if (graph_parent_is_merge(graph))
5644 symbol = REVGRAPH_MERGE;
5645 else if (graph->pos >= graph->size)
5646 symbol = REVGRAPH_BRANCH;
5648 symbol = REVGRAPH_COMMIT;
5654 draw_rev_graph(struct rev_graph *graph)
5657 chtype separator, line;
5659 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5660 static struct rev_filler fillers[] = {
5666 chtype symbol = get_rev_graph_symbol(graph);
5667 struct rev_filler *filler;
5670 if (opt_line_graphics)
5671 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5673 filler = &fillers[DEFAULT];
5675 for (i = 0; i < graph->pos; i++) {
5676 append_to_rev_graph(graph, filler->line);
5677 if (graph_parent_is_merge(graph->prev) &&
5678 graph->prev->pos == i)
5679 filler = &fillers[RSHARP];
5681 append_to_rev_graph(graph, filler->separator);
5684 /* Place the symbol for this revision. */
5685 append_to_rev_graph(graph, symbol);
5687 if (graph->prev->size > graph->size)
5688 filler = &fillers[RDIAG];
5690 filler = &fillers[DEFAULT];
5694 for (; i < graph->size; i++) {
5695 append_to_rev_graph(graph, filler->separator);
5696 append_to_rev_graph(graph, filler->line);
5697 if (graph_parent_is_merge(graph->prev) &&
5698 i < graph->prev->pos + graph->parents->size)
5699 filler = &fillers[RSHARP];
5700 if (graph->prev->size > graph->size)
5701 filler = &fillers[LDIAG];
5704 if (graph->prev->size > graph->size) {
5705 append_to_rev_graph(graph, filler->separator);
5706 if (filler->line != ' ')
5707 append_to_rev_graph(graph, filler->line);
5711 /* Prepare the next rev graph */
5713 prepare_rev_graph(struct rev_graph *graph)
5717 /* First, traverse all lines of revisions up to the active one. */
5718 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5719 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5722 push_rev_graph(graph->next, graph->rev[graph->pos]);
5725 /* Interleave the new revision parent(s). */
5726 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5727 push_rev_graph(graph->next, graph->parents->rev[i]);
5729 /* Lastly, put any remaining revisions. */
5730 for (i = graph->pos + 1; i < graph->size; i++)
5731 push_rev_graph(graph->next, graph->rev[i]);
5735 update_rev_graph(struct view *view, struct rev_graph *graph)
5737 /* If this is the finalizing update ... */
5739 prepare_rev_graph(graph);
5741 /* Graph visualization needs a one rev look-ahead,
5742 * so the first update doesn't visualize anything. */
5743 if (!graph->prev->commit)
5746 if (view->lines > 2)
5747 view->line[view->lines - 3].dirty = 1;
5748 if (view->lines > 1)
5749 view->line[view->lines - 2].dirty = 1;
5750 draw_rev_graph(graph->prev);
5751 done_rev_graph(graph->prev->prev);
5759 static const char *main_argv[SIZEOF_ARG] = {
5760 "git", "log", "--no-color", "--pretty=raw", "--parents",
5761 "--topo-order", "%(head)", NULL
5765 main_draw(struct view *view, struct line *line, unsigned int lineno)
5767 struct commit *commit = line->data;
5769 if (!*commit->author)
5772 if (opt_date && draw_date(view, &commit->time))
5775 if (opt_author && draw_author(view, commit->author))
5778 if (opt_rev_graph && commit->graph_size &&
5779 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5782 if (opt_show_refs && commit->refs) {
5786 enum line_type type;
5788 if (commit->refs[i]->head)
5789 type = LINE_MAIN_HEAD;
5790 else if (commit->refs[i]->ltag)
5791 type = LINE_MAIN_LOCAL_TAG;
5792 else if (commit->refs[i]->tag)
5793 type = LINE_MAIN_TAG;
5794 else if (commit->refs[i]->tracked)
5795 type = LINE_MAIN_TRACKED;
5796 else if (commit->refs[i]->remote)
5797 type = LINE_MAIN_REMOTE;
5799 type = LINE_MAIN_REF;
5801 if (draw_text(view, type, "[", TRUE) ||
5802 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5803 draw_text(view, type, "]", TRUE))
5806 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5808 } while (commit->refs[i++]->next);
5811 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5815 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5817 main_read(struct view *view, char *line)
5819 static struct rev_graph *graph = graph_stacks;
5820 enum line_type type;
5821 struct commit *commit;
5826 if (!view->lines && !view->parent)
5827 die("No revisions match the given arguments.");
5828 if (view->lines > 0) {
5829 commit = view->line[view->lines - 1].data;
5830 view->line[view->lines - 1].dirty = 1;
5831 if (!*commit->author) {
5834 graph->commit = NULL;
5837 update_rev_graph(view, graph);
5839 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5840 clear_rev_graph(&graph_stacks[i]);
5844 type = get_line_type(line);
5845 if (type == LINE_COMMIT) {
5846 commit = calloc(1, sizeof(struct commit));
5850 line += STRING_SIZE("commit ");
5852 graph->boundary = 1;
5856 string_copy_rev(commit->id, line);
5857 commit->refs = get_refs(commit->id);
5858 graph->commit = commit;
5859 add_line_data(view, commit, LINE_MAIN_COMMIT);
5861 while ((line = strchr(line, ' '))) {
5863 push_rev_graph(graph->parents, line);
5864 commit->has_parents = TRUE;
5871 commit = view->line[view->lines - 1].data;
5875 if (commit->has_parents)
5877 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5881 parse_author_line(line + STRING_SIZE("author "),
5882 commit->author, sizeof(commit->author),
5884 update_rev_graph(view, graph);
5885 graph = graph->next;
5889 /* Fill in the commit title if it has not already been set. */
5890 if (commit->title[0])
5893 /* Require titles to start with a non-space character at the
5894 * offset used by git log. */
5895 if (strncmp(line, " ", 4))
5898 /* Well, if the title starts with a whitespace character,
5899 * try to be forgiving. Otherwise we end up with no title. */
5900 while (isspace(*line))
5904 /* FIXME: More graceful handling of titles; append "..." to
5905 * shortened titles, etc. */
5907 string_expand(commit->title, sizeof(commit->title), line, 1);
5908 view->line[view->lines - 1].dirty = 1;
5915 main_request(struct view *view, enum request request, struct line *line)
5917 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5921 open_view(view, REQ_VIEW_DIFF, flags);
5925 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5935 grep_refs(struct ref **refs, regex_t *regex)
5943 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5945 } while (refs[i++]->next);
5951 main_grep(struct view *view, struct line *line)
5953 struct commit *commit = line->data;
5954 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5955 char buf[DATE_COLS + 1];
5958 for (state = S_TITLE; state < S_END; state++) {
5962 case S_TITLE: text = commit->title; break;
5966 text = commit->author;
5971 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5978 if (grep_refs(commit->refs, view->regex) == TRUE)
5985 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5993 main_select(struct view *view, struct line *line)
5995 struct commit *commit = line->data;
5997 string_copy_rev(view->ref, commit->id);
5998 string_copy_rev(ref_commit, view->ref);
6001 static struct view_ops main_ops = {
6014 * Unicode / UTF-8 handling
6016 * NOTE: Much of the following code for dealing with Unicode is derived from
6017 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
6018 * src/intl/charset.c from the UTF-8 branch commit elinks-0.11.0-g31f2c28.
6022 unicode_width(unsigned long c)
6025 (c <= 0x115f /* Hangul Jamo */
6028 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
6030 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
6031 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
6032 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
6033 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
6034 || (c >= 0xffe0 && c <= 0xffe6)
6035 || (c >= 0x20000 && c <= 0x2fffd)
6036 || (c >= 0x30000 && c <= 0x3fffd)))
6040 return opt_tab_size;
6045 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
6046 * Illegal bytes are set one. */
6047 static const unsigned char utf8_bytes[256] = {
6048 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,
6049 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,
6050 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,
6051 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,
6052 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,
6053 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,
6054 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,
6055 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,
6058 /* Decode UTF-8 multi-byte representation into a Unicode character. */
6059 static inline unsigned long
6060 utf8_to_unicode(const char *string, size_t length)
6062 unsigned long unicode;
6066 unicode = string[0];
6069 unicode = (string[0] & 0x1f) << 6;
6070 unicode += (string[1] & 0x3f);
6073 unicode = (string[0] & 0x0f) << 12;
6074 unicode += ((string[1] & 0x3f) << 6);
6075 unicode += (string[2] & 0x3f);
6078 unicode = (string[0] & 0x0f) << 18;
6079 unicode += ((string[1] & 0x3f) << 12);
6080 unicode += ((string[2] & 0x3f) << 6);
6081 unicode += (string[3] & 0x3f);
6084 unicode = (string[0] & 0x0f) << 24;
6085 unicode += ((string[1] & 0x3f) << 18);
6086 unicode += ((string[2] & 0x3f) << 12);
6087 unicode += ((string[3] & 0x3f) << 6);
6088 unicode += (string[4] & 0x3f);
6091 unicode = (string[0] & 0x01) << 30;
6092 unicode += ((string[1] & 0x3f) << 24);
6093 unicode += ((string[2] & 0x3f) << 18);
6094 unicode += ((string[3] & 0x3f) << 12);
6095 unicode += ((string[4] & 0x3f) << 6);
6096 unicode += (string[5] & 0x3f);
6099 die("Invalid Unicode length");
6102 /* Invalid characters could return the special 0xfffd value but NUL
6103 * should be just as good. */
6104 return unicode > 0xffff ? 0 : unicode;
6107 /* Calculates how much of string can be shown within the given maximum width
6108 * and sets trimmed parameter to non-zero value if all of string could not be
6109 * shown. If the reserve flag is TRUE, it will reserve at least one
6110 * trailing character, which can be useful when drawing a delimiter.
6112 * Returns the number of bytes to output from string to satisfy max_width. */
6114 utf8_length(const char **start, size_t skip, int *width, size_t max_width, int *trimmed, bool reserve)
6116 const char *string = *start;
6117 const char *end = strchr(string, '\0');
6118 unsigned char last_bytes = 0;
6119 size_t last_ucwidth = 0;
6124 while (string < end) {
6125 int c = *(unsigned char *) string;
6126 unsigned char bytes = utf8_bytes[c];
6128 unsigned long unicode;
6130 if (string + bytes > end)
6133 /* Change representation to figure out whether
6134 * it is a single- or double-width character. */
6136 unicode = utf8_to_unicode(string, bytes);
6137 /* FIXME: Graceful handling of invalid Unicode character. */
6141 ucwidth = unicode_width(unicode);
6143 skip -= ucwidth <= skip ? ucwidth : skip;
6147 if (*width > max_width) {
6150 if (reserve && *width == max_width) {
6151 string -= last_bytes;
6152 *width -= last_ucwidth;
6158 last_bytes = ucwidth ? bytes : 0;
6159 last_ucwidth = ucwidth;
6162 return string - *start;
6170 /* Whether or not the curses interface has been initialized. */
6171 static bool cursed = FALSE;
6173 /* Terminal hacks and workarounds. */
6174 static bool use_scroll_redrawwin;
6175 static bool use_scroll_status_wclear;
6177 /* The status window is used for polling keystrokes. */
6178 static WINDOW *status_win;
6180 /* Reading from the prompt? */
6181 static bool input_mode = FALSE;
6183 static bool status_empty = FALSE;
6185 /* Update status and title window. */
6187 report(const char *msg, ...)
6189 struct view *view = display[current_view];
6195 char buf[SIZEOF_STR];
6198 va_start(args, msg);
6199 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6200 buf[sizeof(buf) - 1] = 0;
6201 buf[sizeof(buf) - 2] = '.';
6202 buf[sizeof(buf) - 3] = '.';
6203 buf[sizeof(buf) - 4] = '.';
6209 if (!status_empty || *msg) {
6212 va_start(args, msg);
6214 wmove(status_win, 0, 0);
6215 if (view->has_scrolled && use_scroll_status_wclear)
6218 vwprintw(status_win, msg, args);
6219 status_empty = FALSE;
6221 status_empty = TRUE;
6223 wclrtoeol(status_win);
6224 wnoutrefresh(status_win);
6229 update_view_title(view);
6232 /* Controls when nodelay should be in effect when polling user input. */
6234 set_nonblocking_input(bool loading)
6236 static unsigned int loading_views;
6238 if ((loading == FALSE && loading_views-- == 1) ||
6239 (loading == TRUE && loading_views++ == 0))
6240 nodelay(status_win, loading);
6249 /* Initialize the curses library */
6250 if (isatty(STDIN_FILENO)) {
6251 cursed = !!initscr();
6254 /* Leave stdin and stdout alone when acting as a pager. */
6255 opt_tty = fopen("/dev/tty", "r+");
6257 die("Failed to open /dev/tty");
6258 cursed = !!newterm(NULL, opt_tty, opt_tty);
6262 die("Failed to initialize curses");
6264 nonl(); /* Disable conversion and detect newlines from input. */
6265 cbreak(); /* Take input chars one at a time, no wait for \n */
6266 noecho(); /* Don't echo input */
6267 leaveok(stdscr, FALSE);
6272 getmaxyx(stdscr, y, x);
6273 status_win = newwin(1, 0, y - 1, 0);
6275 die("Failed to create status window");
6277 /* Enable keyboard mapping */
6278 keypad(status_win, TRUE);
6279 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6281 TABSIZE = opt_tab_size;
6282 if (opt_line_graphics) {
6283 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6286 term = getenv("XTERM_VERSION") ? NULL : getenv("COLORTERM");
6287 if (term && !strcmp(term, "gnome-terminal")) {
6288 /* In the gnome-terminal-emulator, the message from
6289 * scrolling up one line when impossible followed by
6290 * scrolling down one line causes corruption of the
6291 * status line. This is fixed by calling wclear. */
6292 use_scroll_status_wclear = TRUE;
6293 use_scroll_redrawwin = FALSE;
6295 } else if (term && !strcmp(term, "xrvt-xpm")) {
6296 /* No problems with full optimizations in xrvt-(unicode)
6298 use_scroll_status_wclear = use_scroll_redrawwin = FALSE;
6301 /* When scrolling in (u)xterm the last line in the
6302 * scrolling direction will update slowly. */
6303 use_scroll_redrawwin = TRUE;
6304 use_scroll_status_wclear = FALSE;
6309 get_input(int prompt_position)
6312 int i, key, cursor_y, cursor_x;
6314 if (prompt_position)
6318 foreach_view (view, i) {
6320 if (view_is_displayed(view) && view->has_scrolled &&
6321 use_scroll_redrawwin)
6322 redrawwin(view->win);
6323 view->has_scrolled = FALSE;
6326 /* Update the cursor position. */
6327 if (prompt_position) {
6328 getbegyx(status_win, cursor_y, cursor_x);
6329 cursor_x = prompt_position;
6331 view = display[current_view];
6332 getbegyx(view->win, cursor_y, cursor_x);
6333 cursor_x = view->width - 1;
6334 cursor_y += view->lineno - view->offset;
6336 setsyx(cursor_y, cursor_x);
6338 /* Refresh, accept single keystroke of input */
6340 key = wgetch(status_win);
6342 /* wgetch() with nodelay() enabled returns ERR when
6343 * there's no input. */
6346 } else if (key == KEY_RESIZE) {
6349 getmaxyx(stdscr, height, width);
6351 wresize(status_win, 1, width);
6352 mvwin(status_win, height - 1, 0);
6353 wnoutrefresh(status_win);
6355 redraw_display(TRUE);
6365 prompt_input(const char *prompt, input_handler handler, void *data)
6367 enum input_status status = INPUT_OK;
6368 static char buf[SIZEOF_STR];
6373 while (status == INPUT_OK || status == INPUT_SKIP) {
6376 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6377 wclrtoeol(status_win);
6379 key = get_input(pos + 1);
6384 status = pos ? INPUT_STOP : INPUT_CANCEL;
6391 status = INPUT_CANCEL;
6395 status = INPUT_CANCEL;
6399 if (pos >= sizeof(buf)) {
6400 report("Input string too long");
6404 status = handler(data, buf, key);
6405 if (status == INPUT_OK)
6406 buf[pos++] = (char) key;
6410 /* Clear the status window */
6411 status_empty = FALSE;
6414 if (status == INPUT_CANCEL)
6422 static enum input_status
6423 prompt_yesno_handler(void *data, char *buf, int c)
6425 if (c == 'y' || c == 'Y')
6427 if (c == 'n' || c == 'N')
6428 return INPUT_CANCEL;
6433 prompt_yesno(const char *prompt)
6435 char prompt2[SIZEOF_STR];
6437 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6440 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6443 static enum input_status
6444 read_prompt_handler(void *data, char *buf, int c)
6446 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6450 read_prompt(const char *prompt)
6452 return prompt_input(prompt, read_prompt_handler, NULL);
6456 * Repository properties
6459 static struct ref *refs = NULL;
6460 static size_t refs_alloc = 0;
6461 static size_t refs_size = 0;
6463 /* Id <-> ref store */
6464 static struct ref ***id_refs = NULL;
6465 static size_t id_refs_alloc = 0;
6466 static size_t id_refs_size = 0;
6469 compare_refs(const void *ref1_, const void *ref2_)
6471 const struct ref *ref1 = *(const struct ref **)ref1_;
6472 const struct ref *ref2 = *(const struct ref **)ref2_;
6474 if (ref1->tag != ref2->tag)
6475 return ref2->tag - ref1->tag;
6476 if (ref1->ltag != ref2->ltag)
6477 return ref2->ltag - ref2->ltag;
6478 if (ref1->head != ref2->head)
6479 return ref2->head - ref1->head;
6480 if (ref1->tracked != ref2->tracked)
6481 return ref2->tracked - ref1->tracked;
6482 if (ref1->remote != ref2->remote)
6483 return ref2->remote - ref1->remote;
6484 return strcmp(ref1->name, ref2->name);
6487 static struct ref **
6488 get_refs(const char *id)
6490 struct ref ***tmp_id_refs;
6491 struct ref **ref_list = NULL;
6492 size_t ref_list_alloc = 0;
6493 size_t ref_list_size = 0;
6496 for (i = 0; i < id_refs_size; i++)
6497 if (!strcmp(id, id_refs[i][0]->id))
6500 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6505 id_refs = tmp_id_refs;
6507 for (i = 0; i < refs_size; i++) {
6510 if (strcmp(id, refs[i].id))
6513 tmp = realloc_items(ref_list, &ref_list_alloc,
6514 ref_list_size + 1, sizeof(*ref_list));
6522 ref_list[ref_list_size] = &refs[i];
6523 /* XXX: The properties of the commit chains ensures that we can
6524 * safely modify the shared ref. The repo references will
6525 * always be similar for the same id. */
6526 ref_list[ref_list_size]->next = 1;
6532 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6533 ref_list[ref_list_size - 1]->next = 0;
6534 id_refs[id_refs_size++] = ref_list;
6541 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6546 bool remote = FALSE;
6547 bool tracked = FALSE;
6548 bool check_replace = FALSE;
6551 if (!prefixcmp(name, "refs/tags/")) {
6552 if (!suffixcmp(name, namelen, "^{}")) {
6555 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6556 check_replace = TRUE;
6562 namelen -= STRING_SIZE("refs/tags/");
6563 name += STRING_SIZE("refs/tags/");
6565 } else if (!prefixcmp(name, "refs/remotes/")) {
6567 namelen -= STRING_SIZE("refs/remotes/");
6568 name += STRING_SIZE("refs/remotes/");
6569 tracked = !strcmp(opt_remote, name);
6571 } else if (!prefixcmp(name, "refs/heads/")) {
6572 namelen -= STRING_SIZE("refs/heads/");
6573 name += STRING_SIZE("refs/heads/");
6574 head = !strncmp(opt_head, name, namelen);
6576 } else if (!strcmp(name, "HEAD")) {
6577 string_ncopy(opt_head_rev, id, idlen);
6581 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6582 /* it's an annotated tag, replace the previous SHA1 with the
6583 * resolved commit id; relies on the fact git-ls-remote lists
6584 * the commit id of an annotated tag right before the commit id
6586 refs[refs_size - 1].ltag = ltag;
6587 string_copy_rev(refs[refs_size - 1].id, id);
6591 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6595 ref = &refs[refs_size++];
6596 ref->name = malloc(namelen + 1);
6600 strncpy(ref->name, name, namelen);
6601 ref->name[namelen] = 0;
6605 ref->remote = remote;
6606 ref->tracked = tracked;
6607 string_copy_rev(ref->id, id);
6615 static const char *ls_remote_argv[SIZEOF_ARG] = {
6616 "git", "ls-remote", ".", NULL
6618 static bool init = FALSE;
6621 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6628 while (refs_size > 0)
6629 free(refs[--refs_size].name);
6630 while (id_refs_size > 0)
6631 free(id_refs[--id_refs_size]);
6633 return run_io_load(ls_remote_argv, "\t", read_ref);
6637 set_repo_config_option(char *name, char *value, int (*cmd)(int, const char **))
6639 const char *argv[SIZEOF_ARG] = { name, "=" };
6640 int argc = 1 + (cmd == option_set_command);
6643 if (!argv_from_string(argv, &argc, value))
6644 config_msg = "Too many option arguments";
6646 error = cmd(argc, argv);
6649 warn("Option 'tig.%s': %s", name, config_msg);
6653 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6655 if (!strcmp(name, "i18n.commitencoding"))
6656 string_ncopy(opt_encoding, value, valuelen);
6658 if (!strcmp(name, "core.editor"))
6659 string_ncopy(opt_editor, value, valuelen);
6661 if (!prefixcmp(name, "tig.color."))
6662 set_repo_config_option(name + 10, value, option_color_command);
6664 else if (!prefixcmp(name, "tig.bind."))
6665 set_repo_config_option(name + 9, value, option_bind_command);
6667 else if (!prefixcmp(name, "tig."))
6668 set_repo_config_option(name + 4, value, option_set_command);
6670 /* branch.<head>.remote */
6672 !strncmp(name, "branch.", 7) &&
6673 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6674 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6675 string_ncopy(opt_remote, value, valuelen);
6677 if (*opt_head && *opt_remote &&
6678 !strncmp(name, "branch.", 7) &&
6679 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6680 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6681 size_t from = strlen(opt_remote);
6683 if (!prefixcmp(value, "refs/heads/")) {
6684 value += STRING_SIZE("refs/heads/");
6685 valuelen -= STRING_SIZE("refs/heads/");
6688 if (!string_format_from(opt_remote, &from, "/%s", value))
6696 load_git_config(void)
6698 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6700 return run_io_load(config_list_argv, "=", read_repo_config_option);
6704 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6706 if (!opt_git_dir[0]) {
6707 string_ncopy(opt_git_dir, name, namelen);
6709 } else if (opt_is_inside_work_tree == -1) {
6710 /* This can be 3 different values depending on the
6711 * version of git being used. If git-rev-parse does not
6712 * understand --is-inside-work-tree it will simply echo
6713 * the option else either "true" or "false" is printed.
6714 * Default to true for the unknown case. */
6715 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6717 } else if (*name == '.') {
6718 string_ncopy(opt_cdup, name, namelen);
6721 string_ncopy(opt_prefix, name, namelen);
6728 load_repo_info(void)
6730 const char *head_argv[] = {
6731 "git", "symbolic-ref", "HEAD", NULL
6733 const char *rev_parse_argv[] = {
6734 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6735 "--show-cdup", "--show-prefix", NULL
6738 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6739 chomp_string(opt_head);
6740 if (!prefixcmp(opt_head, "refs/heads/")) {
6741 char *offset = opt_head + STRING_SIZE("refs/heads/");
6743 memmove(opt_head, offset, strlen(offset) + 1);
6747 return run_io_load(rev_parse_argv, "=", read_repo_info);
6755 static const char usage[] =
6756 "tig " TIG_VERSION " (" __DATE__ ")\n"
6758 "Usage: tig [options] [revs] [--] [paths]\n"
6759 " or: tig show [options] [revs] [--] [paths]\n"
6760 " or: tig blame [rev] path\n"
6762 " or: tig < [git command output]\n"
6765 " -v, --version Show version and exit\n"
6766 " -h, --help Show help message and exit";
6768 static void __NORETURN
6771 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6777 static void __NORETURN
6778 die(const char *err, ...)
6784 va_start(args, err);
6785 fputs("tig: ", stderr);
6786 vfprintf(stderr, err, args);
6787 fputs("\n", stderr);
6794 warn(const char *msg, ...)
6798 va_start(args, msg);
6799 fputs("tig warning: ", stderr);
6800 vfprintf(stderr, msg, args);
6801 fputs("\n", stderr);
6806 parse_options(int argc, const char *argv[])
6808 enum request request = REQ_VIEW_MAIN;
6809 const char *subcommand;
6810 bool seen_dashdash = FALSE;
6811 /* XXX: This is vulnerable to the user overriding options
6812 * required for the main view parser. */
6813 const char *custom_argv[SIZEOF_ARG] = {
6814 "git", "log", "--no-color", "--pretty=raw", "--parents",
6815 "--topo-order", NULL
6819 if (!isatty(STDIN_FILENO)) {
6820 io_open(&VIEW(REQ_VIEW_PAGER)->io, "");
6821 return REQ_VIEW_PAGER;
6827 subcommand = argv[1];
6828 if (!strcmp(subcommand, "status")) {
6830 warn("ignoring arguments after `%s'", subcommand);
6831 return REQ_VIEW_STATUS;
6833 } else if (!strcmp(subcommand, "blame")) {
6834 if (argc <= 2 || argc > 4)
6835 die("invalid number of options to blame\n\n%s", usage);
6839 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
6843 string_ncopy(opt_file, argv[i], strlen(argv[i]));
6844 return REQ_VIEW_BLAME;
6846 } else if (!strcmp(subcommand, "show")) {
6847 request = REQ_VIEW_DIFF;
6854 custom_argv[1] = subcommand;
6858 for (i = 1 + !!subcommand; i < argc; i++) {
6859 const char *opt = argv[i];
6861 if (seen_dashdash || !strcmp(opt, "--")) {
6862 seen_dashdash = TRUE;
6864 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
6865 printf("tig version %s\n", TIG_VERSION);
6868 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
6869 printf("%s\n", usage);
6873 custom_argv[j++] = opt;
6874 if (j >= ARRAY_SIZE(custom_argv))
6875 die("command too long");
6878 if (!prepare_update(VIEW(request), custom_argv, NULL, FORMAT_NONE))
6879 die("Failed to format arguments");
6885 main(int argc, const char *argv[])
6887 enum request request = parse_options(argc, argv);
6891 signal(SIGINT, quit);
6893 if (setlocale(LC_ALL, "")) {
6894 char *codeset = nl_langinfo(CODESET);
6896 string_ncopy(opt_codeset, codeset, strlen(codeset));
6899 if (load_repo_info() == ERR)
6900 die("Failed to load repo info.");
6902 if (load_options() == ERR)
6903 die("Failed to load user config.");
6905 if (load_git_config() == ERR)
6906 die("Failed to load repo config.");
6908 /* Require a git repository unless when running in pager mode. */
6909 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6910 die("Not a git repository");
6912 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6915 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6916 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6917 if (opt_iconv == ICONV_NONE)
6918 die("Failed to initialize character set conversion");
6921 if (load_refs() == ERR)
6922 die("Failed to load refs.");
6924 foreach_view (view, i)
6925 argv_from_env(view->ops->argv, view->cmd_env);
6929 if (request != REQ_NONE)
6930 open_view(NULL, request, OPEN_PREPARED);
6931 request = request == REQ_NONE ? REQ_VIEW_MAIN : REQ_NONE;
6933 while (view_driver(display[current_view], request)) {
6934 int key = get_input(0);
6936 view = display[current_view];
6937 request = get_keybinding(view->keymap, key);
6939 /* Some low-level request handling. This keeps access to
6940 * status_win restricted. */
6944 char *cmd = read_prompt(":");
6947 struct view *next = VIEW(REQ_VIEW_PAGER);
6948 const char *argv[SIZEOF_ARG] = { "git" };
6951 /* When running random commands, initially show the
6952 * command in the title. However, it maybe later be
6953 * overwritten if a commit line is selected. */
6954 string_ncopy(next->ref, cmd, strlen(cmd));
6956 if (!argv_from_string(argv, &argc, cmd)) {
6957 report("Too many arguments");
6958 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6959 report("Failed to format command");
6961 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6969 case REQ_SEARCH_BACK:
6971 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6972 char *search = read_prompt(prompt);
6975 string_ncopy(opt_search, search, strlen(search));
6976 else if (*opt_search)
6977 request = request == REQ_SEARCH ?