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;
2681 if (view->p_offset > view->p_lineno ||
2682 view->p_offset + view->height <= view->p_lineno) {
2683 unsigned long half = view->height / 2;
2685 if (view->p_lineno > half)
2686 view->p_offset = view->p_lineno - half;
2691 if (view_is_displayed(view) &&
2692 view->offset != view->p_offset &&
2693 view->lineno != view->p_lineno)
2696 view->offset = view->p_offset;
2697 view->yoffset = view->p_yoffset;
2698 view->lineno = view->p_lineno;
2699 view->p_restore = FALSE;
2705 end_update(struct view *view, bool force)
2709 while (!view->ops->read(view, NULL))
2712 set_nonblocking_input(FALSE);
2714 kill_io(view->pipe);
2715 done_io(view->pipe);
2720 setup_update(struct view *view, const char *vid)
2722 set_nonblocking_input(TRUE);
2724 string_copy_rev(view->vid, vid);
2725 view->pipe = &view->io;
2726 view->start_time = time(NULL);
2730 prepare_update(struct view *view, const char *argv[], const char *dir,
2731 enum format_flags flags)
2734 end_update(view, TRUE);
2735 return init_io_rd(&view->io, argv, dir, flags);
2739 prepare_update_file(struct view *view, const char *name)
2742 end_update(view, TRUE);
2743 return io_open(&view->io, name);
2747 begin_update(struct view *view, bool refresh)
2750 end_update(view, TRUE);
2753 if (!start_io(&view->io))
2757 if (view == VIEW(REQ_VIEW_TREE) && strcmp(view->vid, view->id))
2760 if (!run_io_rd(&view->io, view->ops->argv, FORMAT_ALL))
2763 /* Put the current ref_* value to the view title ref
2764 * member. This is needed by the blob view. Most other
2765 * views sets it automatically after loading because the
2766 * first line is a commit line. */
2767 string_copy_rev(view->ref, view->id);
2770 setup_update(view, view->id);
2775 #define ITEM_CHUNK_SIZE 256
2777 realloc_items(void *mem, size_t *size, size_t new_size, size_t item_size)
2779 size_t num_chunks = *size / ITEM_CHUNK_SIZE;
2780 size_t num_chunks_new = (new_size + ITEM_CHUNK_SIZE - 1) / ITEM_CHUNK_SIZE;
2782 if (mem == NULL || num_chunks != num_chunks_new) {
2783 *size = num_chunks_new * ITEM_CHUNK_SIZE;
2784 mem = realloc(mem, *size * item_size);
2790 static struct line *
2791 realloc_lines(struct view *view, size_t line_size)
2793 size_t alloc = view->line_alloc;
2794 struct line *tmp = realloc_items(view->line, &alloc, line_size,
2795 sizeof(*view->line));
2801 view->line_alloc = alloc;
2806 update_view(struct view *view)
2808 char out_buffer[BUFSIZ * 2];
2810 /* Clear the view and redraw everything since the tree sorting
2811 * might have rearranged things. */
2812 bool redraw = view->lines == 0;
2813 bool can_read = TRUE;
2818 if (!io_can_read(view->pipe)) {
2819 if (view->lines == 0) {
2820 time_t secs = time(NULL) - view->start_time;
2822 if (secs > 1 && secs > view->update_secs) {
2823 if (view->update_secs == 0)
2825 update_view_title(view);
2826 view->update_secs = secs;
2832 for (; (line = io_get(view->pipe, '\n', can_read)); can_read = FALSE) {
2833 if (opt_iconv != ICONV_NONE) {
2834 ICONV_CONST char *inbuf = line;
2835 size_t inlen = strlen(line) + 1;
2837 char *outbuf = out_buffer;
2838 size_t outlen = sizeof(out_buffer);
2842 ret = iconv(opt_iconv, &inbuf, &inlen, &outbuf, &outlen);
2843 if (ret != (size_t) -1)
2847 if (!view->ops->read(view, line)) {
2848 report("Allocation failure");
2849 end_update(view, TRUE);
2855 unsigned long lines = view->lines;
2858 for (digits = 0; lines; digits++)
2861 /* Keep the displayed view in sync with line number scaling. */
2862 if (digits != view->digits) {
2863 view->digits = digits;
2864 if (opt_line_number || view == VIEW(REQ_VIEW_BLAME))
2869 if (io_error(view->pipe)) {
2870 report("Failed to read: %s", io_strerror(view->pipe));
2871 end_update(view, TRUE);
2873 } else if (io_eof(view->pipe)) {
2875 end_update(view, FALSE);
2878 if (restore_view_position(view))
2881 if (!view_is_displayed(view))
2885 redraw_view_from(view, 0);
2887 redraw_view_dirty(view);
2889 /* Update the title _after_ the redraw so that if the redraw picks up a
2890 * commit reference in view->ref it'll be available here. */
2891 update_view_title(view);
2895 static struct line *
2896 add_line_data(struct view *view, void *data, enum line_type type)
2900 if (!realloc_lines(view, view->lines + 1))
2903 line = &view->line[view->lines++];
2904 memset(line, 0, sizeof(*line));
2912 static struct line *
2913 add_line_text(struct view *view, const char *text, enum line_type type)
2915 char *data = text ? strdup(text) : NULL;
2917 return data ? add_line_data(view, data, type) : NULL;
2920 static struct line *
2921 add_line_format(struct view *view, enum line_type type, const char *fmt, ...)
2923 char buf[SIZEOF_STR];
2926 va_start(args, fmt);
2927 if (vsnprintf(buf, sizeof(buf), fmt, args) >= sizeof(buf))
2931 return buf[0] ? add_line_text(view, buf, type) : NULL;
2939 OPEN_DEFAULT = 0, /* Use default view switching. */
2940 OPEN_SPLIT = 1, /* Split current view. */
2941 OPEN_RELOAD = 4, /* Reload view even if it is the current. */
2942 OPEN_REFRESH = 16, /* Refresh view using previous command. */
2943 OPEN_PREPARED = 32, /* Open already prepared command. */
2947 open_view(struct view *prev, enum request request, enum open_flags flags)
2949 bool split = !!(flags & OPEN_SPLIT);
2950 bool reload = !!(flags & (OPEN_RELOAD | OPEN_REFRESH | OPEN_PREPARED));
2951 bool nomaximize = !!(flags & OPEN_REFRESH);
2952 struct view *view = VIEW(request);
2953 int nviews = displayed_views();
2954 struct view *base_view = display[0];
2956 if (view == prev && nviews == 1 && !reload) {
2957 report("Already in %s view", view->name);
2961 if (view->git_dir && !opt_git_dir[0]) {
2962 report("The %s view is disabled in pager view", view->name);
2969 } else if (!nomaximize) {
2970 /* Maximize the current view. */
2971 memset(display, 0, sizeof(display));
2973 display[current_view] = view;
2976 /* Resize the view when switching between split- and full-screen,
2977 * or when switching between two different full-screen views. */
2978 if (nviews != displayed_views() ||
2979 (nviews == 1 && base_view != display[0]))
2982 if (view->ops->open) {
2984 end_update(view, TRUE);
2985 if (!view->ops->open(view)) {
2986 report("Failed to load %s view", view->name);
2989 restore_view_position(view);
2991 } else if ((reload || strcmp(view->vid, view->id)) &&
2992 !begin_update(view, flags & (OPEN_REFRESH | OPEN_PREPARED))) {
2993 report("Failed to load %s view", view->name);
2997 if (split && prev->lineno - prev->offset >= prev->height) {
2998 /* Take the title line into account. */
2999 int lines = prev->lineno - prev->offset - prev->height + 1;
3001 /* Scroll the view that was split if the current line is
3002 * outside the new limited view. */
3003 do_scroll_view(prev, lines);
3006 if (prev && view != prev) {
3008 /* "Blur" the previous view. */
3009 update_view_title(prev);
3012 view->parent = prev;
3015 if (view->pipe && view->lines == 0) {
3016 /* Clear the old view and let the incremental updating refill
3019 view->p_restore = flags & (OPEN_RELOAD | OPEN_REFRESH);
3021 } else if (view_is_displayed(view)) {
3028 open_external_viewer(const char *argv[], const char *dir)
3030 def_prog_mode(); /* save current tty modes */
3031 endwin(); /* restore original tty modes */
3032 run_io_fg(argv, dir);
3033 fprintf(stderr, "Press Enter to continue");
3036 redraw_display(TRUE);
3040 open_mergetool(const char *file)
3042 const char *mergetool_argv[] = { "git", "mergetool", file, NULL };
3044 open_external_viewer(mergetool_argv, opt_cdup);
3048 open_editor(bool from_root, const char *file)
3050 const char *editor_argv[] = { "vi", file, NULL };
3053 editor = getenv("GIT_EDITOR");
3054 if (!editor && *opt_editor)
3055 editor = opt_editor;
3057 editor = getenv("VISUAL");
3059 editor = getenv("EDITOR");
3063 editor_argv[0] = editor;
3064 open_external_viewer(editor_argv, from_root ? opt_cdup : NULL);
3068 open_run_request(enum request request)
3070 struct run_request *req = get_run_request(request);
3071 const char *argv[ARRAY_SIZE(req->argv)] = { NULL };
3074 report("Unknown run request");
3078 if (format_argv(argv, req->argv, FORMAT_ALL))
3079 open_external_viewer(argv, NULL);
3084 * User request switch noodle
3088 view_driver(struct view *view, enum request request)
3092 if (request == REQ_NONE) {
3097 if (request > REQ_NONE) {
3098 open_run_request(request);
3099 /* FIXME: When all views can refresh always do this. */
3100 if (view == VIEW(REQ_VIEW_STATUS) ||
3101 view == VIEW(REQ_VIEW_MAIN) ||
3102 view == VIEW(REQ_VIEW_LOG) ||
3103 view == VIEW(REQ_VIEW_STAGE))
3104 request = REQ_REFRESH;
3109 if (view && view->lines) {
3110 request = view->ops->request(view, request, &view->line[view->lineno]);
3111 if (request == REQ_NONE)
3118 case REQ_MOVE_PAGE_UP:
3119 case REQ_MOVE_PAGE_DOWN:
3120 case REQ_MOVE_FIRST_LINE:
3121 case REQ_MOVE_LAST_LINE:
3122 move_view(view, request);
3125 case REQ_SCROLL_LEFT:
3126 case REQ_SCROLL_RIGHT:
3127 case REQ_SCROLL_LINE_DOWN:
3128 case REQ_SCROLL_LINE_UP:
3129 case REQ_SCROLL_PAGE_DOWN:
3130 case REQ_SCROLL_PAGE_UP:
3131 scroll_view(view, request);
3134 case REQ_VIEW_BLAME:
3136 report("No file chosen, press %s to open tree view",
3137 get_key(REQ_VIEW_TREE));
3140 open_view(view, request, OPEN_DEFAULT);
3145 report("No file chosen, press %s to open tree view",
3146 get_key(REQ_VIEW_TREE));
3149 open_view(view, request, OPEN_DEFAULT);
3152 case REQ_VIEW_PAGER:
3153 if (!VIEW(REQ_VIEW_PAGER)->pipe && !VIEW(REQ_VIEW_PAGER)->lines) {
3154 report("No pager content, press %s to run command from prompt",
3155 get_key(REQ_PROMPT));
3158 open_view(view, request, OPEN_DEFAULT);
3161 case REQ_VIEW_STAGE:
3162 if (!VIEW(REQ_VIEW_STAGE)->lines) {
3163 report("No stage content, press %s to open the status view and choose file",
3164 get_key(REQ_VIEW_STATUS));
3167 open_view(view, request, OPEN_DEFAULT);
3170 case REQ_VIEW_STATUS:
3171 if (opt_is_inside_work_tree == FALSE) {
3172 report("The status view requires a working tree");
3175 open_view(view, request, OPEN_DEFAULT);
3183 open_view(view, request, OPEN_DEFAULT);
3188 request = request == REQ_NEXT ? REQ_MOVE_DOWN : REQ_MOVE_UP;
3190 if ((view == VIEW(REQ_VIEW_DIFF) &&
3191 view->parent == VIEW(REQ_VIEW_MAIN)) ||
3192 (view == VIEW(REQ_VIEW_DIFF) &&
3193 view->parent == VIEW(REQ_VIEW_BLAME)) ||
3194 (view == VIEW(REQ_VIEW_STAGE) &&
3195 view->parent == VIEW(REQ_VIEW_STATUS)) ||
3196 (view == VIEW(REQ_VIEW_BLOB) &&
3197 view->parent == VIEW(REQ_VIEW_TREE))) {
3200 view = view->parent;
3201 line = view->lineno;
3202 move_view(view, request);
3203 if (view_is_displayed(view))
3204 update_view_title(view);
3205 if (line != view->lineno)
3206 view->ops->request(view, REQ_ENTER,
3207 &view->line[view->lineno]);
3210 move_view(view, request);
3216 int nviews = displayed_views();
3217 int next_view = (current_view + 1) % nviews;
3219 if (next_view == current_view) {
3220 report("Only one view is displayed");
3224 current_view = next_view;
3225 /* Blur out the title of the previous view. */
3226 update_view_title(view);
3231 report("Refreshing is not yet supported for the %s view", view->name);
3235 if (displayed_views() == 2)
3236 open_view(view, VIEW_REQ(view), OPEN_DEFAULT);
3239 case REQ_TOGGLE_LINENO:
3240 toggle_view_option(&opt_line_number, "line numbers");
3243 case REQ_TOGGLE_DATE:
3244 toggle_view_option(&opt_date, "date display");
3247 case REQ_TOGGLE_AUTHOR:
3248 toggle_view_option(&opt_author, "author display");
3251 case REQ_TOGGLE_REV_GRAPH:
3252 toggle_view_option(&opt_rev_graph, "revision graph display");
3255 case REQ_TOGGLE_REFS:
3256 toggle_view_option(&opt_show_refs, "reference display");
3260 case REQ_SEARCH_BACK:
3261 search_view(view, request);
3266 find_next(view, request);
3269 case REQ_STOP_LOADING:
3270 for (i = 0; i < ARRAY_SIZE(views); i++) {
3273 report("Stopped loading the %s view", view->name),
3274 end_update(view, TRUE);
3278 case REQ_SHOW_VERSION:
3279 report("tig-%s (built %s)", TIG_VERSION, __DATE__);
3282 case REQ_SCREEN_REDRAW:
3283 redraw_display(TRUE);
3287 report("Nothing to edit");
3291 report("Nothing to enter");
3294 case REQ_VIEW_CLOSE:
3295 /* XXX: Mark closed views by letting view->parent point to the
3296 * view itself. Parents to closed view should never be
3299 view->parent->parent != view->parent) {
3300 memset(display, 0, sizeof(display));
3302 display[current_view] = view->parent;
3303 view->parent = view;
3305 redraw_display(FALSE);
3314 report("Unknown key, press 'h' for help");
3323 * View backend utilities
3327 parse_timezone(time_t *time, const char *zone)
3331 tz = ('0' - zone[1]) * 60 * 60 * 10;
3332 tz += ('0' - zone[2]) * 60 * 60;
3333 tz += ('0' - zone[3]) * 60;
3334 tz += ('0' - zone[4]);
3342 /* Parse author lines where the name may be empty:
3343 * author <email@address.tld> 1138474660 +0100
3346 parse_author_line(char *ident, char *author, size_t authorsize, struct tm *tm)
3348 char *nameend = strchr(ident, '<');
3349 char *emailend = strchr(ident, '>');
3351 if (nameend && emailend)
3352 *nameend = *emailend = 0;
3353 ident = chomp_string(ident);
3356 ident = chomp_string(nameend + 1);
3361 string_ncopy_do(author, authorsize, ident, strlen(ident));
3363 /* Parse epoch and timezone */
3364 if (emailend && emailend[1] == ' ') {
3365 char *secs = emailend + 2;
3366 char *zone = strchr(secs, ' ');
3367 time_t time = (time_t) atol(secs);
3369 if (zone && strlen(zone) == STRING_SIZE(" +0700"))
3370 parse_timezone(&time, zone + 1);
3372 gmtime_r(&time, tm);
3376 static enum input_status
3377 select_commit_parent_handler(void *data, char *buf, int c)
3379 size_t parents = *(size_t *) data;
3386 parent = atoi(buf) * 10;
3389 if (parent > parents)
3395 select_commit_parent(const char *id, char rev[SIZEOF_REV])
3397 char buf[SIZEOF_STR * 4];
3398 const char *revlist_argv[] = {
3399 "git", "rev-list", "-1", "--parents", id, NULL
3403 if (!run_io_buf(revlist_argv, buf, sizeof(buf)) ||
3404 !*chomp_string(buf) ||
3405 (parents = (strlen(buf) / 40) - 1) < 0) {
3406 report("Failed to get parent information");
3409 } else if (parents == 0) {
3410 report("The selected commit has no parents");
3415 char prompt[SIZEOF_STR];
3418 if (!string_format(prompt, "Which parent? [1..%d] ", parents))
3420 result = prompt_input(prompt, select_commit_parent_handler, &parents);
3423 parents = atoi(result);
3426 string_copy_rev(rev, &buf[41 * parents]);
3435 pager_draw(struct view *view, struct line *line, unsigned int lineno)
3437 char text[SIZEOF_STR];
3439 if (opt_line_number && draw_lineno(view, lineno))
3442 string_expand(text, sizeof(text), line->data, opt_tab_size);
3443 draw_text(view, line->type, text, TRUE);
3448 add_describe_ref(char *buf, size_t *bufpos, const char *commit_id, const char *sep)
3450 const char *describe_argv[] = { "git", "describe", commit_id, NULL };
3451 char refbuf[SIZEOF_STR];
3454 if (run_io_buf(describe_argv, refbuf, sizeof(refbuf)))
3455 ref = chomp_string(refbuf);
3460 /* This is the only fatal call, since it can "corrupt" the buffer. */
3461 if (!string_nformat(buf, SIZEOF_STR, bufpos, "%s%s", sep, ref))
3468 add_pager_refs(struct view *view, struct line *line)
3470 char buf[SIZEOF_STR];
3471 char *commit_id = (char *)line->data + STRING_SIZE("commit ");
3473 size_t bufpos = 0, refpos = 0;
3474 const char *sep = "Refs: ";
3475 bool is_tag = FALSE;
3477 assert(line->type == LINE_COMMIT);
3479 refs = get_refs(commit_id);
3481 if (view == VIEW(REQ_VIEW_DIFF))
3482 goto try_add_describe_ref;
3487 struct ref *ref = refs[refpos];
3488 const char *fmt = ref->tag ? "%s[%s]" :
3489 ref->remote ? "%s<%s>" : "%s%s";
3491 if (!string_format_from(buf, &bufpos, fmt, sep, ref->name))
3496 } while (refs[refpos++]->next);
3498 if (!is_tag && view == VIEW(REQ_VIEW_DIFF)) {
3499 try_add_describe_ref:
3500 /* Add <tag>-g<commit_id> "fake" reference. */
3501 if (!add_describe_ref(buf, &bufpos, commit_id, sep))
3508 add_line_text(view, buf, LINE_PP_REFS);
3512 pager_read(struct view *view, char *data)
3519 line = add_line_text(view, data, get_line_type(data));
3523 if (line->type == LINE_COMMIT &&
3524 (view == VIEW(REQ_VIEW_DIFF) ||
3525 view == VIEW(REQ_VIEW_LOG)))
3526 add_pager_refs(view, line);
3532 pager_request(struct view *view, enum request request, struct line *line)
3536 if (request != REQ_ENTER)
3539 if (line->type == LINE_COMMIT &&
3540 (view == VIEW(REQ_VIEW_LOG) ||
3541 view == VIEW(REQ_VIEW_PAGER))) {
3542 open_view(view, REQ_VIEW_DIFF, OPEN_SPLIT);
3546 /* Always scroll the view even if it was split. That way
3547 * you can use Enter to scroll through the log view and
3548 * split open each commit diff. */
3549 scroll_view(view, REQ_SCROLL_LINE_DOWN);
3551 /* FIXME: A minor workaround. Scrolling the view will call report("")
3552 * but if we are scrolling a non-current view this won't properly
3553 * update the view title. */
3555 update_view_title(view);
3561 pager_grep(struct view *view, struct line *line)
3564 char *text = line->data;
3569 if (regexec(view->regex, text, 1, &pmatch, 0) == REG_NOMATCH)
3576 pager_select(struct view *view, struct line *line)
3578 if (line->type == LINE_COMMIT) {
3579 char *text = (char *)line->data + STRING_SIZE("commit ");
3581 if (view != VIEW(REQ_VIEW_PAGER))
3582 string_copy_rev(view->ref, text);
3583 string_copy_rev(ref_commit, text);
3587 static struct view_ops pager_ops = {
3598 static const char *log_argv[SIZEOF_ARG] = {
3599 "git", "log", "--no-color", "--cc", "--stat", "-n100", "%(head)", NULL
3603 log_request(struct view *view, enum request request, struct line *line)
3608 open_view(view, REQ_VIEW_LOG, OPEN_REFRESH);
3611 return pager_request(view, request, line);
3615 static struct view_ops log_ops = {
3626 static const char *diff_argv[SIZEOF_ARG] = {
3627 "git", "show", "--pretty=fuller", "--no-color", "--root",
3628 "--patch-with-stat", "--find-copies-harder", "-C", "%(commit)", NULL
3631 static struct view_ops diff_ops = {
3647 help_open(struct view *view)
3649 char buf[SIZEOF_STR];
3653 if (view->lines > 0)
3656 add_line_text(view, "Quick reference for tig keybindings:", LINE_DEFAULT);
3658 for (i = 0; i < ARRAY_SIZE(req_info); i++) {
3661 if (req_info[i].request == REQ_NONE)
3664 if (!req_info[i].request) {
3665 add_line_text(view, "", LINE_DEFAULT);
3666 add_line_text(view, req_info[i].help, LINE_DEFAULT);
3670 key = get_key(req_info[i].request);
3672 key = "(no key defined)";
3674 for (bufpos = 0; bufpos <= req_info[i].namelen; bufpos++) {
3675 buf[bufpos] = tolower(req_info[i].name[bufpos]);
3676 if (buf[bufpos] == '_')
3680 add_line_format(view, LINE_DEFAULT, " %-25s %-20s %s",
3681 key, buf, req_info[i].help);
3685 add_line_text(view, "", LINE_DEFAULT);
3686 add_line_text(view, "External commands:", LINE_DEFAULT);
3689 for (i = 0; i < run_requests; i++) {
3690 struct run_request *req = get_run_request(REQ_NONE + i + 1);
3697 key = get_key_name(req->key);
3699 key = "(no key defined)";
3701 for (bufpos = 0, argc = 0; req->argv[argc]; argc++)
3702 if (!string_format_from(buf, &bufpos, "%s%s",
3703 argc ? " " : "", req->argv[argc]))
3706 add_line_format(view, LINE_DEFAULT, " %-10s %-14s `%s`",
3707 keymap_table[req->keymap].name, key, buf);
3713 static struct view_ops help_ops = {
3729 struct tree_stack_entry {
3730 struct tree_stack_entry *prev; /* Entry below this in the stack */
3731 unsigned long lineno; /* Line number to restore */
3732 char *name; /* Position of name in opt_path */
3735 /* The top of the path stack. */
3736 static struct tree_stack_entry *tree_stack = NULL;
3737 unsigned long tree_lineno = 0;
3740 pop_tree_stack_entry(void)
3742 struct tree_stack_entry *entry = tree_stack;
3744 tree_lineno = entry->lineno;
3746 tree_stack = entry->prev;
3751 push_tree_stack_entry(const char *name, unsigned long lineno)
3753 struct tree_stack_entry *entry = calloc(1, sizeof(*entry));
3754 size_t pathlen = strlen(opt_path);
3759 entry->prev = tree_stack;
3760 entry->name = opt_path + pathlen;
3763 if (!string_format_from(opt_path, &pathlen, "%s/", name)) {
3764 pop_tree_stack_entry();
3768 /* Move the current line to the first tree entry. */
3770 entry->lineno = lineno;
3773 /* Parse output from git-ls-tree(1):
3775 * 100644 blob f931e1d229c3e185caad4449bf5b66ed72462657 tig.c
3778 #define SIZEOF_TREE_ATTR \
3779 STRING_SIZE("100644 blob f931e1d229c3e185caad4449bf5b66ed72462657\t")
3781 #define SIZEOF_TREE_MODE \
3782 STRING_SIZE("100644 ")
3784 #define TREE_ID_OFFSET \
3785 STRING_SIZE("100644 blob ")
3788 char id[SIZEOF_REV];
3790 struct tm time; /* Date from the author ident. */
3791 char author[75]; /* Author of the commit. */
3796 tree_path(struct line *line)
3798 return ((struct tree_entry *) line->data)->name;
3803 tree_compare_entry(struct line *line1, struct line *line2)
3805 if (line1->type != line2->type)
3806 return line1->type == LINE_TREE_DIR ? -1 : 1;
3807 return strcmp(tree_path(line1), tree_path(line2));
3810 static struct line *
3811 tree_entry(struct view *view, enum line_type type, const char *path,
3812 const char *mode, const char *id)
3814 struct tree_entry *entry = calloc(1, sizeof(*entry) + strlen(path));
3815 struct line *line = entry ? add_line_data(view, entry, type) : NULL;
3817 if (!entry || !line) {
3822 strncpy(entry->name, path, strlen(path));
3824 entry->mode = strtoul(mode, NULL, 8);
3826 string_copy_rev(entry->id, id);
3832 tree_read_date(struct view *view, char *text, bool *read_date)
3834 static char author_name[SIZEOF_STR];
3835 static struct tm author_time;
3837 if (!text && *read_date) {
3842 char *path = *opt_path ? opt_path : ".";
3843 /* Find next entry to process */
3844 const char *log_file[] = {
3845 "git", "log", "--no-color", "--pretty=raw",
3846 "--cc", "--raw", view->id, "--", path, NULL
3851 tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL);
3852 report("Tree is empty");
3856 if (!run_io_rd(&io, log_file, FORMAT_NONE)) {
3857 report("Failed to load tree data");
3861 done_io(view->pipe);
3866 } else if (*text == 'a' && get_line_type(text) == LINE_AUTHOR) {
3867 parse_author_line(text + STRING_SIZE("author "),
3868 author_name, sizeof(author_name), &author_time);
3870 } else if (*text == ':') {
3872 size_t annotated = 1;
3875 pos = strchr(text, '\t');
3879 if (*opt_prefix && !strncmp(text, opt_prefix, strlen(opt_prefix)))
3880 text += strlen(opt_prefix);
3881 if (*opt_path && !strncmp(text, opt_path, strlen(opt_path)))
3882 text += strlen(opt_path);
3883 pos = strchr(text, '/');
3887 for (i = 1; i < view->lines; i++) {
3888 struct line *line = &view->line[i];
3889 struct tree_entry *entry = line->data;
3891 annotated += !!*entry->author;
3892 if (*entry->author || strcmp(entry->name, text))
3895 string_copy(entry->author, author_name);
3896 memcpy(&entry->time, &author_time, sizeof(entry->time));
3901 if (annotated == view->lines)
3902 kill_io(view->pipe);
3908 tree_read(struct view *view, char *text)
3910 static bool read_date = FALSE;
3911 struct tree_entry *data;
3912 struct line *entry, *line;
3913 enum line_type type;
3914 size_t textlen = text ? strlen(text) : 0;
3915 char *path = text + SIZEOF_TREE_ATTR;
3917 if (read_date || !text)
3918 return tree_read_date(view, text, &read_date);
3920 if (textlen <= SIZEOF_TREE_ATTR)
3922 if (view->lines == 0 &&
3923 !tree_entry(view, LINE_TREE_HEAD, opt_path, NULL, NULL))
3926 /* Strip the path part ... */
3928 size_t pathlen = textlen - SIZEOF_TREE_ATTR;
3929 size_t striplen = strlen(opt_path);
3931 if (pathlen > striplen)
3932 memmove(path, path + striplen,
3933 pathlen - striplen + 1);
3935 /* Insert "link" to parent directory. */
3936 if (view->lines == 1 &&
3937 !tree_entry(view, LINE_TREE_DIR, "..", "040000", view->ref))
3941 type = text[SIZEOF_TREE_MODE] == 't' ? LINE_TREE_DIR : LINE_TREE_FILE;
3942 entry = tree_entry(view, type, path, text, text + TREE_ID_OFFSET);
3947 /* Skip "Directory ..." and ".." line. */
3948 for (line = &view->line[1 + !!*opt_path]; line < entry; line++) {
3949 if (tree_compare_entry(line, entry) <= 0)
3952 memmove(line + 1, line, (entry - line) * sizeof(*entry));
3956 for (; line <= entry; line++)
3957 line->dirty = line->cleareol = 1;
3961 if (tree_lineno > view->lineno) {
3962 view->lineno = tree_lineno;
3970 tree_draw(struct view *view, struct line *line, unsigned int lineno)
3972 struct tree_entry *entry = line->data;
3974 if (line->type == LINE_TREE_HEAD) {
3975 if (draw_text(view, line->type, "Directory path /", TRUE))
3978 if (draw_mode(view, entry->mode))
3981 if (opt_author && draw_author(view, entry->author))
3984 if (opt_date && draw_date(view, *entry->author ? &entry->time : NULL))
3987 if (draw_text(view, line->type, entry->name, TRUE))
3995 char file[SIZEOF_STR] = "/tmp/tigblob.XXXXXX";
3996 int fd = mkstemp(file);
3999 report("Failed to create temporary file");
4000 else if (!run_io_append(blob_ops.argv, FORMAT_ALL, fd))
4001 report("Failed to save blob data to file");
4003 open_editor(FALSE, file);
4009 tree_request(struct view *view, enum request request, struct line *line)
4011 enum open_flags flags;
4014 case REQ_VIEW_BLAME:
4015 if (line->type != LINE_TREE_FILE) {
4016 report("Blame only supported for files");
4020 string_copy(opt_ref, view->vid);
4024 if (line->type != LINE_TREE_FILE) {
4025 report("Edit only supported for files");
4026 } else if (!is_head_commit(view->vid)) {
4029 open_editor(TRUE, opt_file);
4035 /* quit view if at top of tree */
4036 return REQ_VIEW_CLOSE;
4039 line = &view->line[1];
4049 /* Cleanup the stack if the tree view is at a different tree. */
4050 while (!*opt_path && tree_stack)
4051 pop_tree_stack_entry();
4053 switch (line->type) {
4055 /* Depending on whether it is a subdirectory or parent link
4056 * mangle the path buffer. */
4057 if (line == &view->line[1] && *opt_path) {
4058 pop_tree_stack_entry();
4061 const char *basename = tree_path(line);
4063 push_tree_stack_entry(basename, view->lineno);
4066 /* Trees and subtrees share the same ID, so they are not not
4067 * unique like blobs. */
4068 flags = OPEN_RELOAD;
4069 request = REQ_VIEW_TREE;
4072 case LINE_TREE_FILE:
4073 flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4074 request = REQ_VIEW_BLOB;
4081 open_view(view, request, flags);
4082 if (request == REQ_VIEW_TREE)
4083 view->lineno = tree_lineno;
4089 tree_select(struct view *view, struct line *line)
4091 struct tree_entry *entry = line->data;
4093 if (line->type == LINE_TREE_FILE) {
4094 string_copy_rev(ref_blob, entry->id);
4095 string_format(opt_file, "%s%s", opt_path, tree_path(line));
4097 } else if (line->type != LINE_TREE_DIR) {
4101 string_copy_rev(view->ref, entry->id);
4104 static const char *tree_argv[SIZEOF_ARG] = {
4105 "git", "ls-tree", "%(commit)", "%(directory)", NULL
4108 static struct view_ops tree_ops = {
4120 blob_read(struct view *view, char *line)
4124 return add_line_text(view, line, LINE_DEFAULT) != NULL;
4128 blob_request(struct view *view, enum request request, struct line *line)
4135 return pager_request(view, request, line);
4139 static const char *blob_argv[SIZEOF_ARG] = {
4140 "git", "cat-file", "blob", "%(blob)", NULL
4143 static struct view_ops blob_ops = {
4157 * Loading the blame view is a two phase job:
4159 * 1. File content is read either using opt_file from the
4160 * filesystem or using git-cat-file.
4161 * 2. Then blame information is incrementally added by
4162 * reading output from git-blame.
4165 static const char *blame_head_argv[] = {
4166 "git", "blame", "--incremental", "--", "%(file)", NULL
4169 static const char *blame_ref_argv[] = {
4170 "git", "blame", "--incremental", "%(ref)", "--", "%(file)", NULL
4173 static const char *blame_cat_file_argv[] = {
4174 "git", "cat-file", "blob", "%(ref):%(file)", NULL
4177 struct blame_commit {
4178 char id[SIZEOF_REV]; /* SHA1 ID. */
4179 char title[128]; /* First line of the commit message. */
4180 char author[75]; /* Author of the commit. */
4181 struct tm time; /* Date from the author ident. */
4182 char filename[128]; /* Name of file. */
4183 bool has_previous; /* Was a "previous" line detected. */
4187 struct blame_commit *commit;
4192 blame_open(struct view *view)
4194 if (*opt_ref || !io_open(&view->io, opt_file)) {
4195 if (!run_io_rd(&view->io, blame_cat_file_argv, FORMAT_ALL))
4199 setup_update(view, opt_file);
4200 string_format(view->ref, "%s ...", opt_file);
4205 static struct blame_commit *
4206 get_blame_commit(struct view *view, const char *id)
4210 for (i = 0; i < view->lines; i++) {
4211 struct blame *blame = view->line[i].data;
4216 if (!strncmp(blame->commit->id, id, SIZEOF_REV - 1))
4217 return blame->commit;
4221 struct blame_commit *commit = calloc(1, sizeof(*commit));
4224 string_ncopy(commit->id, id, SIZEOF_REV);
4230 parse_number(const char **posref, size_t *number, size_t min, size_t max)
4232 const char *pos = *posref;
4235 pos = strchr(pos + 1, ' ');
4236 if (!pos || !isdigit(pos[1]))
4238 *number = atoi(pos + 1);
4239 if (*number < min || *number > max)
4246 static struct blame_commit *
4247 parse_blame_commit(struct view *view, const char *text, int *blamed)
4249 struct blame_commit *commit;
4250 struct blame *blame;
4251 const char *pos = text + SIZEOF_REV - 1;
4255 if (strlen(text) <= SIZEOF_REV || *pos != ' ')
4258 if (!parse_number(&pos, &lineno, 1, view->lines) ||
4259 !parse_number(&pos, &group, 1, view->lines - lineno + 1))
4262 commit = get_blame_commit(view, text);
4268 struct line *line = &view->line[lineno + group - 1];
4271 blame->commit = commit;
4279 blame_read_file(struct view *view, const char *line, bool *read_file)
4282 const char **argv = *opt_ref ? blame_ref_argv : blame_head_argv;
4285 if (view->lines == 0 && !view->parent)
4286 die("No blame exist for %s", view->vid);
4288 if (view->lines == 0 || !run_io_rd(&io, argv, FORMAT_ALL)) {
4289 report("Failed to load blame data");
4293 done_io(view->pipe);
4299 size_t linelen = string_expand_length(line, opt_tab_size);
4300 struct blame *blame = malloc(sizeof(*blame) + linelen);
4305 blame->commit = NULL;
4306 string_expand(blame->text, linelen + 1, line, opt_tab_size);
4307 return add_line_data(view, blame, LINE_BLAME_ID) != NULL;
4312 match_blame_header(const char *name, char **line)
4314 size_t namelen = strlen(name);
4315 bool matched = !strncmp(name, *line, namelen);
4324 blame_read(struct view *view, char *line)
4326 static struct blame_commit *commit = NULL;
4327 static int blamed = 0;
4328 static time_t author_time;
4329 static bool read_file = TRUE;
4332 return blame_read_file(view, line, &read_file);
4339 string_format(view->ref, "%s", view->vid);
4340 if (view_is_displayed(view)) {
4341 update_view_title(view);
4342 redraw_view_from(view, 0);
4348 commit = parse_blame_commit(view, line, &blamed);
4349 string_format(view->ref, "%s %2d%%", view->vid,
4350 view->lines ? blamed * 100 / view->lines : 0);
4352 } else if (match_blame_header("author ", &line)) {
4353 string_ncopy(commit->author, line, strlen(line));
4355 } else if (match_blame_header("author-time ", &line)) {
4356 author_time = (time_t) atol(line);
4358 } else if (match_blame_header("author-tz ", &line)) {
4359 parse_timezone(&author_time, line);
4360 gmtime_r(&author_time, &commit->time);
4362 } else if (match_blame_header("summary ", &line)) {
4363 string_ncopy(commit->title, line, strlen(line));
4365 } else if (match_blame_header("previous ", &line)) {
4366 commit->has_previous = TRUE;
4368 } else if (match_blame_header("filename ", &line)) {
4369 string_ncopy(commit->filename, line, strlen(line));
4377 blame_draw(struct view *view, struct line *line, unsigned int lineno)
4379 struct blame *blame = line->data;
4380 struct tm *time = NULL;
4381 const char *id = NULL, *author = NULL;
4383 if (blame->commit && *blame->commit->filename) {
4384 id = blame->commit->id;
4385 author = blame->commit->author;
4386 time = &blame->commit->time;
4389 if (opt_date && draw_date(view, time))
4392 if (opt_author && draw_author(view, author))
4395 if (draw_field(view, LINE_BLAME_ID, id, ID_COLS, FALSE))
4398 if (draw_lineno(view, lineno))
4401 draw_text(view, LINE_DEFAULT, blame->text, TRUE);
4406 check_blame_commit(struct blame *blame)
4409 report("Commit data not loaded yet");
4410 else if (!strcmp(blame->commit->id, NULL_ID))
4411 report("No commit exist for the selected line");
4418 blame_request(struct view *view, enum request request, struct line *line)
4420 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
4421 struct blame *blame = line->data;
4424 case REQ_VIEW_BLAME:
4425 if (check_blame_commit(blame)) {
4426 string_copy(opt_ref, blame->commit->id);
4427 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4432 if (check_blame_commit(blame) &&
4433 select_commit_parent(blame->commit->id, opt_ref))
4434 open_view(view, REQ_VIEW_BLAME, OPEN_REFRESH);
4438 if (!blame->commit) {
4439 report("No commit loaded yet");
4443 if (view_is_displayed(VIEW(REQ_VIEW_DIFF)) &&
4444 !strcmp(blame->commit->id, VIEW(REQ_VIEW_DIFF)->ref))
4447 if (!strcmp(blame->commit->id, NULL_ID)) {
4448 struct view *diff = VIEW(REQ_VIEW_DIFF);
4449 const char *diff_index_argv[] = {
4450 "git", "diff-index", "--root", "--patch-with-stat",
4451 "-C", "-M", "HEAD", "--", view->vid, NULL
4454 if (!blame->commit->has_previous) {
4455 diff_index_argv[1] = "diff";
4456 diff_index_argv[2] = "--no-color";
4457 diff_index_argv[6] = "--";
4458 diff_index_argv[7] = "/dev/null";
4461 if (!prepare_update(diff, diff_index_argv, NULL, FORMAT_DASH)) {
4462 report("Failed to allocate diff command");
4465 flags |= OPEN_PREPARED;
4468 open_view(view, REQ_VIEW_DIFF, flags);
4469 if (VIEW(REQ_VIEW_DIFF)->pipe && !strcmp(blame->commit->id, NULL_ID))
4470 string_copy_rev(VIEW(REQ_VIEW_DIFF)->ref, NULL_ID);
4481 blame_grep(struct view *view, struct line *line)
4483 struct blame *blame = line->data;
4484 struct blame_commit *commit = blame->commit;
4487 #define MATCH(text, on) \
4488 (on && *text && regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
4491 char buf[DATE_COLS + 1];
4493 if (MATCH(commit->title, 1) ||
4494 MATCH(commit->author, opt_author) ||
4495 MATCH(commit->id, opt_date))
4498 if (strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time) &&
4503 return MATCH(blame->text, 1);
4509 blame_select(struct view *view, struct line *line)
4511 struct blame *blame = line->data;
4512 struct blame_commit *commit = blame->commit;
4517 if (!strcmp(commit->id, NULL_ID))
4518 string_ncopy(ref_commit, "HEAD", 4);
4520 string_copy_rev(ref_commit, commit->id);
4523 static struct view_ops blame_ops = {
4542 char rev[SIZEOF_REV];
4543 char name[SIZEOF_STR];
4547 char rev[SIZEOF_REV];
4548 char name[SIZEOF_STR];
4552 static char status_onbranch[SIZEOF_STR];
4553 static struct status stage_status;
4554 static enum line_type stage_line_type;
4555 static size_t stage_chunks;
4556 static int *stage_chunk;
4558 /* This should work even for the "On branch" line. */
4560 status_has_none(struct view *view, struct line *line)
4562 return line < view->line + view->lines && !line[1].data;
4565 /* Get fields from the diff line:
4566 * :100644 100644 06a5d6ae9eca55be2e0e585a152e6b1336f2b20e 0000000000000000000000000000000000000000 M
4569 status_get_diff(struct status *file, const char *buf, size_t bufsize)
4571 const char *old_mode = buf + 1;
4572 const char *new_mode = buf + 8;
4573 const char *old_rev = buf + 15;
4574 const char *new_rev = buf + 56;
4575 const char *status = buf + 97;
4578 old_mode[-1] != ':' ||
4579 new_mode[-1] != ' ' ||
4580 old_rev[-1] != ' ' ||
4581 new_rev[-1] != ' ' ||
4585 file->status = *status;
4587 string_copy_rev(file->old.rev, old_rev);
4588 string_copy_rev(file->new.rev, new_rev);
4590 file->old.mode = strtoul(old_mode, NULL, 8);
4591 file->new.mode = strtoul(new_mode, NULL, 8);
4593 file->old.name[0] = file->new.name[0] = 0;
4599 status_run(struct view *view, const char *argv[], char status, enum line_type type)
4601 struct status *unmerged = NULL;
4605 if (!run_io(&io, argv, NULL, IO_RD))
4608 add_line_data(view, NULL, type);
4610 while ((buf = io_get(&io, 0, TRUE))) {
4611 struct status *file = unmerged;
4614 file = calloc(1, sizeof(*file));
4615 if (!file || !add_line_data(view, file, type))
4619 /* Parse diff info part. */
4621 file->status = status;
4623 string_copy(file->old.rev, NULL_ID);
4625 } else if (!file->status || file == unmerged) {
4626 if (!status_get_diff(file, buf, strlen(buf)))
4629 buf = io_get(&io, 0, TRUE);
4633 /* Collapse all modified entries that follow an
4634 * associated unmerged entry. */
4635 if (unmerged == file) {
4636 unmerged->status = 'U';
4638 } else if (file->status == 'U') {
4643 /* Grab the old name for rename/copy. */
4644 if (!*file->old.name &&
4645 (file->status == 'R' || file->status == 'C')) {
4646 string_ncopy(file->old.name, buf, strlen(buf));
4648 buf = io_get(&io, 0, TRUE);
4653 /* git-ls-files just delivers a NUL separated list of
4654 * file names similar to the second half of the
4655 * git-diff-* output. */
4656 string_ncopy(file->new.name, buf, strlen(buf));
4657 if (!*file->old.name)
4658 string_copy(file->old.name, file->new.name);
4662 if (io_error(&io)) {
4668 if (!view->line[view->lines - 1].data)
4669 add_line_data(view, NULL, LINE_STAT_NONE);
4675 /* Don't show unmerged entries in the staged section. */
4676 static const char *status_diff_index_argv[] = {
4677 "git", "diff-index", "-z", "--diff-filter=ACDMRTXB",
4678 "--cached", "-M", "HEAD", NULL
4681 static const char *status_diff_files_argv[] = {
4682 "git", "diff-files", "-z", NULL
4685 static const char *status_list_other_argv[] = {
4686 "git", "ls-files", "-z", "--others", "--exclude-standard", NULL
4689 static const char *status_list_no_head_argv[] = {
4690 "git", "ls-files", "-z", "--cached", "--exclude-standard", NULL
4693 static const char *update_index_argv[] = {
4694 "git", "update-index", "-q", "--unmerged", "--refresh", NULL
4697 /* Restore the previous line number to stay in the context or select a
4698 * line with something that can be updated. */
4700 status_restore(struct view *view)
4702 if (view->p_lineno >= view->lines)
4703 view->p_lineno = view->lines - 1;
4704 while (view->p_lineno < view->lines && !view->line[view->p_lineno].data)
4706 while (view->p_lineno > 0 && !view->line[view->p_lineno].data)
4709 /* If the above fails, always skip the "On branch" line. */
4710 if (view->p_lineno < view->lines)
4711 view->lineno = view->p_lineno;
4715 if (view->lineno < view->offset)
4716 view->offset = view->lineno;
4717 else if (view->offset + view->height <= view->lineno)
4718 view->offset = view->lineno - view->height + 1;
4720 view->p_restore = FALSE;
4724 status_update_onbranch(void)
4726 static const char *paths[][2] = {
4727 { "rebase-apply/rebasing", "Rebasing" },
4728 { "rebase-apply/applying", "Applying mailbox" },
4729 { "rebase-apply/", "Rebasing mailbox" },
4730 { "rebase-merge/interactive", "Interactive rebase" },
4731 { "rebase-merge/", "Rebase merge" },
4732 { "MERGE_HEAD", "Merging" },
4733 { "BISECT_LOG", "Bisecting" },
4734 { "HEAD", "On branch" },
4736 char buf[SIZEOF_STR];
4740 if (is_initial_commit()) {
4741 string_copy(status_onbranch, "Initial commit");
4745 for (i = 0; i < ARRAY_SIZE(paths); i++) {
4746 char *head = opt_head;
4748 if (!string_format(buf, "%s/%s", opt_git_dir, paths[i][0]) ||
4749 lstat(buf, &stat) < 0)
4755 if (string_format(buf, "%s/rebase-merge/head-name", opt_git_dir) &&
4756 io_open(&io, buf) &&
4757 io_read_buf(&io, buf, sizeof(buf))) {
4758 head = chomp_string(buf);
4759 if (!prefixcmp(head, "refs/heads/"))
4760 head += STRING_SIZE("refs/heads/");
4764 if (!string_format(status_onbranch, "%s %s", paths[i][1], head))
4765 string_copy(status_onbranch, opt_head);
4769 string_copy(status_onbranch, "Not currently on any branch");
4772 /* First parse staged info using git-diff-index(1), then parse unstaged
4773 * info using git-diff-files(1), and finally untracked files using
4774 * git-ls-files(1). */
4776 status_open(struct view *view)
4780 add_line_data(view, NULL, LINE_STAT_HEAD);
4781 status_update_onbranch();
4783 run_io_bg(update_index_argv);
4785 if (is_initial_commit()) {
4786 if (!status_run(view, status_list_no_head_argv, 'A', LINE_STAT_STAGED))
4788 } else if (!status_run(view, status_diff_index_argv, 0, LINE_STAT_STAGED)) {
4792 if (!status_run(view, status_diff_files_argv, 0, LINE_STAT_UNSTAGED) ||
4793 !status_run(view, status_list_other_argv, '?', LINE_STAT_UNTRACKED))
4796 /* Restore the exact position or use the specialized restore
4798 if (!view->p_restore)
4799 status_restore(view);
4804 status_draw(struct view *view, struct line *line, unsigned int lineno)
4806 struct status *status = line->data;
4807 enum line_type type;
4811 switch (line->type) {
4812 case LINE_STAT_STAGED:
4813 type = LINE_STAT_SECTION;
4814 text = "Changes to be committed:";
4817 case LINE_STAT_UNSTAGED:
4818 type = LINE_STAT_SECTION;
4819 text = "Changed but not updated:";
4822 case LINE_STAT_UNTRACKED:
4823 type = LINE_STAT_SECTION;
4824 text = "Untracked files:";
4827 case LINE_STAT_NONE:
4828 type = LINE_DEFAULT;
4829 text = " (no files)";
4832 case LINE_STAT_HEAD:
4833 type = LINE_STAT_HEAD;
4834 text = status_onbranch;
4841 static char buf[] = { '?', ' ', ' ', ' ', 0 };
4843 buf[0] = status->status;
4844 if (draw_text(view, line->type, buf, TRUE))
4846 type = LINE_DEFAULT;
4847 text = status->new.name;
4850 draw_text(view, type, text, TRUE);
4855 status_enter(struct view *view, struct line *line)
4857 struct status *status = line->data;
4858 const char *oldpath = status ? status->old.name : NULL;
4859 /* Diffs for unmerged entries are empty when passing the new
4860 * path, so leave it empty. */
4861 const char *newpath = status && status->status != 'U' ? status->new.name : NULL;
4863 enum open_flags split;
4864 struct view *stage = VIEW(REQ_VIEW_STAGE);
4866 if (line->type == LINE_STAT_NONE ||
4867 (!status && line[1].type == LINE_STAT_NONE)) {
4868 report("No file to diff");
4872 switch (line->type) {
4873 case LINE_STAT_STAGED:
4874 if (is_initial_commit()) {
4875 const char *no_head_diff_argv[] = {
4876 "git", "diff", "--no-color", "--patch-with-stat",
4877 "--", "/dev/null", newpath, NULL
4880 if (!prepare_update(stage, no_head_diff_argv, opt_cdup, FORMAT_DASH))
4883 const char *index_show_argv[] = {
4884 "git", "diff-index", "--root", "--patch-with-stat",
4885 "-C", "-M", "--cached", "HEAD", "--",
4886 oldpath, newpath, NULL
4889 if (!prepare_update(stage, index_show_argv, opt_cdup, FORMAT_DASH))
4894 info = "Staged changes to %s";
4896 info = "Staged changes";
4899 case LINE_STAT_UNSTAGED:
4901 const char *files_show_argv[] = {
4902 "git", "diff-files", "--root", "--patch-with-stat",
4903 "-C", "-M", "--", oldpath, newpath, NULL
4906 if (!prepare_update(stage, files_show_argv, opt_cdup, FORMAT_DASH))
4909 info = "Unstaged changes to %s";
4911 info = "Unstaged changes";
4914 case LINE_STAT_UNTRACKED:
4916 report("No file to show");
4920 if (!suffixcmp(status->new.name, -1, "/")) {
4921 report("Cannot display a directory");
4925 if (!prepare_update_file(stage, newpath))
4927 info = "Untracked file %s";
4930 case LINE_STAT_HEAD:
4934 die("line type %d not handled in switch", line->type);
4937 split = view_is_displayed(view) ? OPEN_SPLIT : 0;
4938 open_view(view, REQ_VIEW_STAGE, OPEN_PREPARED | split);
4939 if (view_is_displayed(VIEW(REQ_VIEW_STAGE))) {
4941 stage_status = *status;
4943 memset(&stage_status, 0, sizeof(stage_status));
4946 stage_line_type = line->type;
4948 string_format(VIEW(REQ_VIEW_STAGE)->ref, info, stage_status.new.name);
4955 status_exists(struct status *status, enum line_type type)
4957 struct view *view = VIEW(REQ_VIEW_STATUS);
4958 unsigned long lineno;
4960 for (lineno = 0; lineno < view->lines; lineno++) {
4961 struct line *line = &view->line[lineno];
4962 struct status *pos = line->data;
4964 if (line->type != type)
4966 if (!pos && (!status || !status->status) && line[1].data) {
4967 select_view_line(view, lineno);
4970 if (pos && !strcmp(status->new.name, pos->new.name)) {
4971 select_view_line(view, lineno);
4981 status_update_prepare(struct io *io, enum line_type type)
4983 const char *staged_argv[] = {
4984 "git", "update-index", "-z", "--index-info", NULL
4986 const char *others_argv[] = {
4987 "git", "update-index", "-z", "--add", "--remove", "--stdin", NULL
4991 case LINE_STAT_STAGED:
4992 return run_io(io, staged_argv, opt_cdup, IO_WR);
4994 case LINE_STAT_UNSTAGED:
4995 return run_io(io, others_argv, opt_cdup, IO_WR);
4997 case LINE_STAT_UNTRACKED:
4998 return run_io(io, others_argv, NULL, IO_WR);
5001 die("line type %d not handled in switch", type);
5007 status_update_write(struct io *io, struct status *status, enum line_type type)
5009 char buf[SIZEOF_STR];
5013 case LINE_STAT_STAGED:
5014 if (!string_format_from(buf, &bufsize, "%06o %s\t%s%c",
5017 status->old.name, 0))
5021 case LINE_STAT_UNSTAGED:
5022 case LINE_STAT_UNTRACKED:
5023 if (!string_format_from(buf, &bufsize, "%s%c", status->new.name, 0))
5028 die("line type %d not handled in switch", type);
5031 return io_write(io, buf, bufsize);
5035 status_update_file(struct status *status, enum line_type type)
5040 if (!status_update_prepare(&io, type))
5043 result = status_update_write(&io, status, type);
5049 status_update_files(struct view *view, struct line *line)
5053 struct line *pos = view->line + view->lines;
5057 if (!status_update_prepare(&io, line->type))
5060 for (pos = line; pos < view->line + view->lines && pos->data; pos++)
5063 for (file = 0, done = 0; result && file < files; line++, file++) {
5064 int almost_done = file * 100 / files;
5066 if (almost_done > done) {
5068 string_format(view->ref, "updating file %u of %u (%d%% done)",
5070 update_view_title(view);
5072 result = status_update_write(&io, line->data, line->type);
5080 status_update(struct view *view)
5082 struct line *line = &view->line[view->lineno];
5084 assert(view->lines);
5087 /* This should work even for the "On branch" line. */
5088 if (line < view->line + view->lines && !line[1].data) {
5089 report("Nothing to update");
5093 if (!status_update_files(view, line + 1)) {
5094 report("Failed to update file status");
5098 } else if (!status_update_file(line->data, line->type)) {
5099 report("Failed to update file status");
5107 status_revert(struct status *status, enum line_type type, bool has_none)
5109 if (!status || type != LINE_STAT_UNSTAGED) {
5110 if (type == LINE_STAT_STAGED) {
5111 report("Cannot revert changes to staged files");
5112 } else if (type == LINE_STAT_UNTRACKED) {
5113 report("Cannot revert changes to untracked files");
5114 } else if (has_none) {
5115 report("Nothing to revert");
5117 report("Cannot revert changes to multiple files");
5122 char mode[10] = "100644";
5123 const char *reset_argv[] = {
5124 "git", "update-index", "--cacheinfo", mode,
5125 status->old.rev, status->old.name, NULL
5127 const char *checkout_argv[] = {
5128 "git", "checkout", "--", status->old.name, NULL
5131 if (!prompt_yesno("Are you sure you want to overwrite any changes?"))
5133 string_format(mode, "%o", status->old.mode);
5134 return (status->status != 'U' || run_io_fg(reset_argv, opt_cdup)) &&
5135 run_io_fg(checkout_argv, opt_cdup);
5140 status_request(struct view *view, enum request request, struct line *line)
5142 struct status *status = line->data;
5145 case REQ_STATUS_UPDATE:
5146 if (!status_update(view))
5150 case REQ_STATUS_REVERT:
5151 if (!status_revert(status, line->type, status_has_none(view, line)))
5155 case REQ_STATUS_MERGE:
5156 if (!status || status->status != 'U') {
5157 report("Merging only possible for files with unmerged status ('U').");
5160 open_mergetool(status->new.name);
5166 if (status->status == 'D') {
5167 report("File has been deleted.");
5171 open_editor(status->status != '?', status->new.name);
5174 case REQ_VIEW_BLAME:
5176 string_copy(opt_file, status->new.name);
5182 /* After returning the status view has been split to
5183 * show the stage view. No further reloading is
5185 status_enter(view, line);
5189 /* Simply reload the view. */
5196 open_view(view, REQ_VIEW_STATUS, OPEN_RELOAD);
5202 status_select(struct view *view, struct line *line)
5204 struct status *status = line->data;
5205 char file[SIZEOF_STR] = "all files";
5209 if (status && !string_format(file, "'%s'", status->new.name))
5212 if (!status && line[1].type == LINE_STAT_NONE)
5215 switch (line->type) {
5216 case LINE_STAT_STAGED:
5217 text = "Press %s to unstage %s for commit";
5220 case LINE_STAT_UNSTAGED:
5221 text = "Press %s to stage %s for commit";
5224 case LINE_STAT_UNTRACKED:
5225 text = "Press %s to stage %s for addition";
5228 case LINE_STAT_HEAD:
5229 case LINE_STAT_NONE:
5230 text = "Nothing to update";
5234 die("line type %d not handled in switch", line->type);
5237 if (status && status->status == 'U') {
5238 text = "Press %s to resolve conflict in %s";
5239 key = get_key(REQ_STATUS_MERGE);
5242 key = get_key(REQ_STATUS_UPDATE);
5245 string_format(view->ref, text, key, file);
5249 status_grep(struct view *view, struct line *line)
5251 struct status *status = line->data;
5252 enum { S_STATUS, S_NAME, S_END } state;
5259 for (state = S_STATUS; state < S_END; state++) {
5263 case S_NAME: text = status->new.name; break;
5265 buf[0] = status->status;
5273 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5280 static struct view_ops status_ops = {
5293 stage_diff_write(struct io *io, struct line *line, struct line *end)
5295 while (line < end) {
5296 if (!io_write(io, line->data, strlen(line->data)) ||
5297 !io_write(io, "\n", 1))
5300 if (line->type == LINE_DIFF_CHUNK ||
5301 line->type == LINE_DIFF_HEADER)
5308 static struct line *
5309 stage_diff_find(struct view *view, struct line *line, enum line_type type)
5311 for (; view->line < line; line--)
5312 if (line->type == type)
5319 stage_apply_chunk(struct view *view, struct line *chunk, bool revert)
5321 const char *apply_argv[SIZEOF_ARG] = {
5322 "git", "apply", "--whitespace=nowarn", NULL
5324 struct line *diff_hdr;
5328 diff_hdr = stage_diff_find(view, chunk, LINE_DIFF_HEADER);
5333 apply_argv[argc++] = "--cached";
5334 if (revert || stage_line_type == LINE_STAT_STAGED)
5335 apply_argv[argc++] = "-R";
5336 apply_argv[argc++] = "-";
5337 apply_argv[argc++] = NULL;
5338 if (!run_io(&io, apply_argv, opt_cdup, IO_WR))
5341 if (!stage_diff_write(&io, diff_hdr, chunk) ||
5342 !stage_diff_write(&io, chunk, view->line + view->lines))
5346 run_io_bg(update_index_argv);
5348 return chunk ? TRUE : FALSE;
5352 stage_update(struct view *view, struct line *line)
5354 struct line *chunk = NULL;
5356 if (!is_initial_commit() && stage_line_type != LINE_STAT_UNTRACKED)
5357 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5360 if (!stage_apply_chunk(view, chunk, FALSE)) {
5361 report("Failed to apply chunk");
5365 } else if (!stage_status.status) {
5366 view = VIEW(REQ_VIEW_STATUS);
5368 for (line = view->line; line < view->line + view->lines; line++)
5369 if (line->type == stage_line_type)
5372 if (!status_update_files(view, line + 1)) {
5373 report("Failed to update files");
5377 } else if (!status_update_file(&stage_status, stage_line_type)) {
5378 report("Failed to update file");
5386 stage_revert(struct view *view, struct line *line)
5388 struct line *chunk = NULL;
5390 if (!is_initial_commit() && stage_line_type == LINE_STAT_UNSTAGED)
5391 chunk = stage_diff_find(view, line, LINE_DIFF_CHUNK);
5394 if (!prompt_yesno("Are you sure you want to revert changes?"))
5397 if (!stage_apply_chunk(view, chunk, TRUE)) {
5398 report("Failed to revert chunk");
5404 return status_revert(stage_status.status ? &stage_status : NULL,
5405 stage_line_type, FALSE);
5411 stage_next(struct view *view, struct line *line)
5415 if (!stage_chunks) {
5416 static size_t alloc = 0;
5419 for (line = view->line; line < view->line + view->lines; line++) {
5420 if (line->type != LINE_DIFF_CHUNK)
5423 tmp = realloc_items(stage_chunk, &alloc,
5424 stage_chunks, sizeof(*tmp));
5426 report("Allocation failure");
5431 stage_chunk[stage_chunks++] = line - view->line;
5435 for (i = 0; i < stage_chunks; i++) {
5436 if (stage_chunk[i] > view->lineno) {
5437 do_scroll_view(view, stage_chunk[i] - view->lineno);
5438 report("Chunk %d of %d", i + 1, stage_chunks);
5443 report("No next chunk found");
5447 stage_request(struct view *view, enum request request, struct line *line)
5450 case REQ_STATUS_UPDATE:
5451 if (!stage_update(view, line))
5455 case REQ_STATUS_REVERT:
5456 if (!stage_revert(view, line))
5460 case REQ_STAGE_NEXT:
5461 if (stage_line_type == LINE_STAT_UNTRACKED) {
5462 report("File is untracked; press %s to add",
5463 get_key(REQ_STATUS_UPDATE));
5466 stage_next(view, line);
5470 if (!stage_status.new.name[0])
5472 if (stage_status.status == 'D') {
5473 report("File has been deleted.");
5477 open_editor(stage_status.status != '?', stage_status.new.name);
5481 /* Reload everything ... */
5484 case REQ_VIEW_BLAME:
5485 if (stage_status.new.name[0]) {
5486 string_copy(opt_file, stage_status.new.name);
5492 return pager_request(view, request, line);
5498 VIEW(REQ_VIEW_STATUS)->p_restore = TRUE;
5499 open_view(view, REQ_VIEW_STATUS, OPEN_REFRESH);
5501 /* Check whether the staged entry still exists, and close the
5502 * stage view if it doesn't. */
5503 if (!status_exists(&stage_status, stage_line_type)) {
5504 status_restore(VIEW(REQ_VIEW_STATUS));
5505 return REQ_VIEW_CLOSE;
5508 if (stage_line_type == LINE_STAT_UNTRACKED) {
5509 if (!suffixcmp(stage_status.new.name, -1, "/")) {
5510 report("Cannot display a directory");
5514 if (!prepare_update_file(view, stage_status.new.name)) {
5515 report("Failed to open file: %s", strerror(errno));
5519 open_view(view, REQ_VIEW_STAGE, OPEN_REFRESH);
5524 static struct view_ops stage_ops = {
5541 char id[SIZEOF_REV]; /* SHA1 ID. */
5542 char title[128]; /* First line of the commit message. */
5543 char author[75]; /* Author of the commit. */
5544 struct tm time; /* Date from the author ident. */
5545 struct ref **refs; /* Repository references. */
5546 chtype graph[SIZEOF_REVGRAPH]; /* Ancestry chain graphics. */
5547 size_t graph_size; /* The width of the graph array. */
5548 bool has_parents; /* Rewritten --parents seen. */
5551 /* Size of rev graph with no "padding" columns */
5552 #define SIZEOF_REVITEMS (SIZEOF_REVGRAPH - (SIZEOF_REVGRAPH / 2))
5555 struct rev_graph *prev, *next, *parents;
5556 char rev[SIZEOF_REVITEMS][SIZEOF_REV];
5558 struct commit *commit;
5560 unsigned int boundary:1;
5563 /* Parents of the commit being visualized. */
5564 static struct rev_graph graph_parents[4];
5566 /* The current stack of revisions on the graph. */
5567 static struct rev_graph graph_stacks[4] = {
5568 { &graph_stacks[3], &graph_stacks[1], &graph_parents[0] },
5569 { &graph_stacks[0], &graph_stacks[2], &graph_parents[1] },
5570 { &graph_stacks[1], &graph_stacks[3], &graph_parents[2] },
5571 { &graph_stacks[2], &graph_stacks[0], &graph_parents[3] },
5575 graph_parent_is_merge(struct rev_graph *graph)
5577 return graph->parents->size > 1;
5581 append_to_rev_graph(struct rev_graph *graph, chtype symbol)
5583 struct commit *commit = graph->commit;
5585 if (commit->graph_size < ARRAY_SIZE(commit->graph) - 1)
5586 commit->graph[commit->graph_size++] = symbol;
5590 clear_rev_graph(struct rev_graph *graph)
5592 graph->boundary = 0;
5593 graph->size = graph->pos = 0;
5594 graph->commit = NULL;
5595 memset(graph->parents, 0, sizeof(*graph->parents));
5599 done_rev_graph(struct rev_graph *graph)
5601 if (graph_parent_is_merge(graph) &&
5602 graph->pos < graph->size - 1 &&
5603 graph->next->size == graph->size + graph->parents->size - 1) {
5604 size_t i = graph->pos + graph->parents->size - 1;
5606 graph->commit->graph_size = i * 2;
5607 while (i < graph->next->size - 1) {
5608 append_to_rev_graph(graph, ' ');
5609 append_to_rev_graph(graph, '\\');
5614 clear_rev_graph(graph);
5618 push_rev_graph(struct rev_graph *graph, const char *parent)
5622 /* "Collapse" duplicate parents lines.
5624 * FIXME: This needs to also update update the drawn graph but
5625 * for now it just serves as a method for pruning graph lines. */
5626 for (i = 0; i < graph->size; i++)
5627 if (!strncmp(graph->rev[i], parent, SIZEOF_REV))
5630 if (graph->size < SIZEOF_REVITEMS) {
5631 string_copy_rev(graph->rev[graph->size++], parent);
5636 get_rev_graph_symbol(struct rev_graph *graph)
5640 if (graph->boundary)
5641 symbol = REVGRAPH_BOUND;
5642 else if (graph->parents->size == 0)
5643 symbol = REVGRAPH_INIT;
5644 else if (graph_parent_is_merge(graph))
5645 symbol = REVGRAPH_MERGE;
5646 else if (graph->pos >= graph->size)
5647 symbol = REVGRAPH_BRANCH;
5649 symbol = REVGRAPH_COMMIT;
5655 draw_rev_graph(struct rev_graph *graph)
5658 chtype separator, line;
5660 enum { DEFAULT, RSHARP, RDIAG, LDIAG };
5661 static struct rev_filler fillers[] = {
5667 chtype symbol = get_rev_graph_symbol(graph);
5668 struct rev_filler *filler;
5671 if (opt_line_graphics)
5672 fillers[DEFAULT].line = line_graphics[LINE_GRAPHIC_VLINE];
5674 filler = &fillers[DEFAULT];
5676 for (i = 0; i < graph->pos; i++) {
5677 append_to_rev_graph(graph, filler->line);
5678 if (graph_parent_is_merge(graph->prev) &&
5679 graph->prev->pos == i)
5680 filler = &fillers[RSHARP];
5682 append_to_rev_graph(graph, filler->separator);
5685 /* Place the symbol for this revision. */
5686 append_to_rev_graph(graph, symbol);
5688 if (graph->prev->size > graph->size)
5689 filler = &fillers[RDIAG];
5691 filler = &fillers[DEFAULT];
5695 for (; i < graph->size; i++) {
5696 append_to_rev_graph(graph, filler->separator);
5697 append_to_rev_graph(graph, filler->line);
5698 if (graph_parent_is_merge(graph->prev) &&
5699 i < graph->prev->pos + graph->parents->size)
5700 filler = &fillers[RSHARP];
5701 if (graph->prev->size > graph->size)
5702 filler = &fillers[LDIAG];
5705 if (graph->prev->size > graph->size) {
5706 append_to_rev_graph(graph, filler->separator);
5707 if (filler->line != ' ')
5708 append_to_rev_graph(graph, filler->line);
5712 /* Prepare the next rev graph */
5714 prepare_rev_graph(struct rev_graph *graph)
5718 /* First, traverse all lines of revisions up to the active one. */
5719 for (graph->pos = 0; graph->pos < graph->size; graph->pos++) {
5720 if (!strcmp(graph->rev[graph->pos], graph->commit->id))
5723 push_rev_graph(graph->next, graph->rev[graph->pos]);
5726 /* Interleave the new revision parent(s). */
5727 for (i = 0; !graph->boundary && i < graph->parents->size; i++)
5728 push_rev_graph(graph->next, graph->parents->rev[i]);
5730 /* Lastly, put any remaining revisions. */
5731 for (i = graph->pos + 1; i < graph->size; i++)
5732 push_rev_graph(graph->next, graph->rev[i]);
5736 update_rev_graph(struct view *view, struct rev_graph *graph)
5738 /* If this is the finalizing update ... */
5740 prepare_rev_graph(graph);
5742 /* Graph visualization needs a one rev look-ahead,
5743 * so the first update doesn't visualize anything. */
5744 if (!graph->prev->commit)
5747 if (view->lines > 2)
5748 view->line[view->lines - 3].dirty = 1;
5749 if (view->lines > 1)
5750 view->line[view->lines - 2].dirty = 1;
5751 draw_rev_graph(graph->prev);
5752 done_rev_graph(graph->prev->prev);
5760 static const char *main_argv[SIZEOF_ARG] = {
5761 "git", "log", "--no-color", "--pretty=raw", "--parents",
5762 "--topo-order", "%(head)", NULL
5766 main_draw(struct view *view, struct line *line, unsigned int lineno)
5768 struct commit *commit = line->data;
5770 if (!*commit->author)
5773 if (opt_date && draw_date(view, &commit->time))
5776 if (opt_author && draw_author(view, commit->author))
5779 if (opt_rev_graph && commit->graph_size &&
5780 draw_graphic(view, LINE_MAIN_REVGRAPH, commit->graph, commit->graph_size))
5783 if (opt_show_refs && commit->refs) {
5787 enum line_type type;
5789 if (commit->refs[i]->head)
5790 type = LINE_MAIN_HEAD;
5791 else if (commit->refs[i]->ltag)
5792 type = LINE_MAIN_LOCAL_TAG;
5793 else if (commit->refs[i]->tag)
5794 type = LINE_MAIN_TAG;
5795 else if (commit->refs[i]->tracked)
5796 type = LINE_MAIN_TRACKED;
5797 else if (commit->refs[i]->remote)
5798 type = LINE_MAIN_REMOTE;
5800 type = LINE_MAIN_REF;
5802 if (draw_text(view, type, "[", TRUE) ||
5803 draw_text(view, type, commit->refs[i]->name, TRUE) ||
5804 draw_text(view, type, "]", TRUE))
5807 if (draw_text(view, LINE_DEFAULT, " ", TRUE))
5809 } while (commit->refs[i++]->next);
5812 draw_text(view, LINE_DEFAULT, commit->title, TRUE);
5816 /* Reads git log --pretty=raw output and parses it into the commit struct. */
5818 main_read(struct view *view, char *line)
5820 static struct rev_graph *graph = graph_stacks;
5821 enum line_type type;
5822 struct commit *commit;
5827 if (!view->lines && !view->parent)
5828 die("No revisions match the given arguments.");
5829 if (view->lines > 0) {
5830 commit = view->line[view->lines - 1].data;
5831 view->line[view->lines - 1].dirty = 1;
5832 if (!*commit->author) {
5835 graph->commit = NULL;
5838 update_rev_graph(view, graph);
5840 for (i = 0; i < ARRAY_SIZE(graph_stacks); i++)
5841 clear_rev_graph(&graph_stacks[i]);
5845 type = get_line_type(line);
5846 if (type == LINE_COMMIT) {
5847 commit = calloc(1, sizeof(struct commit));
5851 line += STRING_SIZE("commit ");
5853 graph->boundary = 1;
5857 string_copy_rev(commit->id, line);
5858 commit->refs = get_refs(commit->id);
5859 graph->commit = commit;
5860 add_line_data(view, commit, LINE_MAIN_COMMIT);
5862 while ((line = strchr(line, ' '))) {
5864 push_rev_graph(graph->parents, line);
5865 commit->has_parents = TRUE;
5872 commit = view->line[view->lines - 1].data;
5876 if (commit->has_parents)
5878 push_rev_graph(graph->parents, line + STRING_SIZE("parent "));
5882 parse_author_line(line + STRING_SIZE("author "),
5883 commit->author, sizeof(commit->author),
5885 update_rev_graph(view, graph);
5886 graph = graph->next;
5890 /* Fill in the commit title if it has not already been set. */
5891 if (commit->title[0])
5894 /* Require titles to start with a non-space character at the
5895 * offset used by git log. */
5896 if (strncmp(line, " ", 4))
5899 /* Well, if the title starts with a whitespace character,
5900 * try to be forgiving. Otherwise we end up with no title. */
5901 while (isspace(*line))
5905 /* FIXME: More graceful handling of titles; append "..." to
5906 * shortened titles, etc. */
5908 string_expand(commit->title, sizeof(commit->title), line, 1);
5909 view->line[view->lines - 1].dirty = 1;
5916 main_request(struct view *view, enum request request, struct line *line)
5918 enum open_flags flags = display[0] == view ? OPEN_SPLIT : OPEN_DEFAULT;
5922 open_view(view, REQ_VIEW_DIFF, flags);
5926 open_view(view, REQ_VIEW_MAIN, OPEN_REFRESH);
5936 grep_refs(struct ref **refs, regex_t *regex)
5944 if (regexec(regex, refs[i]->name, 1, &pmatch, 0) != REG_NOMATCH)
5946 } while (refs[i++]->next);
5952 main_grep(struct view *view, struct line *line)
5954 struct commit *commit = line->data;
5955 enum { S_TITLE, S_AUTHOR, S_DATE, S_REFS, S_END } state;
5956 char buf[DATE_COLS + 1];
5959 for (state = S_TITLE; state < S_END; state++) {
5963 case S_TITLE: text = commit->title; break;
5967 text = commit->author;
5972 if (!strftime(buf, sizeof(buf), DATE_FORMAT, &commit->time))
5979 if (grep_refs(commit->refs, view->regex) == TRUE)
5986 if (regexec(view->regex, text, 1, &pmatch, 0) != REG_NOMATCH)
5994 main_select(struct view *view, struct line *line)
5996 struct commit *commit = line->data;
5998 string_copy_rev(view->ref, commit->id);
5999 string_copy_rev(ref_commit, view->ref);
6002 static struct view_ops main_ops = {
6015 * Unicode / UTF-8 handling
6017 * NOTE: Much of the following code for dealing with Unicode is derived from
6018 * ELinks' UTF-8 code developed by Scrool <scroolik@gmail.com>. Origin file is
6019 * src/intl/charset.c from the UTF-8 branch commit elinks-0.11.0-g31f2c28.
6023 unicode_width(unsigned long c)
6026 (c <= 0x115f /* Hangul Jamo */
6029 || (c >= 0x2e80 && c <= 0xa4cf && c != 0x303f)
6031 || (c >= 0xac00 && c <= 0xd7a3) /* Hangul Syllables */
6032 || (c >= 0xf900 && c <= 0xfaff) /* CJK Compatibility Ideographs */
6033 || (c >= 0xfe30 && c <= 0xfe6f) /* CJK Compatibility Forms */
6034 || (c >= 0xff00 && c <= 0xff60) /* Fullwidth Forms */
6035 || (c >= 0xffe0 && c <= 0xffe6)
6036 || (c >= 0x20000 && c <= 0x2fffd)
6037 || (c >= 0x30000 && c <= 0x3fffd)))
6041 return opt_tab_size;
6046 /* Number of bytes used for encoding a UTF-8 character indexed by first byte.
6047 * Illegal bytes are set one. */
6048 static const unsigned char utf8_bytes[256] = {
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 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,
6055 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,
6056 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,
6059 /* Decode UTF-8 multi-byte representation into a Unicode character. */
6060 static inline unsigned long
6061 utf8_to_unicode(const char *string, size_t length)
6063 unsigned long unicode;
6067 unicode = string[0];
6070 unicode = (string[0] & 0x1f) << 6;
6071 unicode += (string[1] & 0x3f);
6074 unicode = (string[0] & 0x0f) << 12;
6075 unicode += ((string[1] & 0x3f) << 6);
6076 unicode += (string[2] & 0x3f);
6079 unicode = (string[0] & 0x0f) << 18;
6080 unicode += ((string[1] & 0x3f) << 12);
6081 unicode += ((string[2] & 0x3f) << 6);
6082 unicode += (string[3] & 0x3f);
6085 unicode = (string[0] & 0x0f) << 24;
6086 unicode += ((string[1] & 0x3f) << 18);
6087 unicode += ((string[2] & 0x3f) << 12);
6088 unicode += ((string[3] & 0x3f) << 6);
6089 unicode += (string[4] & 0x3f);
6092 unicode = (string[0] & 0x01) << 30;
6093 unicode += ((string[1] & 0x3f) << 24);
6094 unicode += ((string[2] & 0x3f) << 18);
6095 unicode += ((string[3] & 0x3f) << 12);
6096 unicode += ((string[4] & 0x3f) << 6);
6097 unicode += (string[5] & 0x3f);
6100 die("Invalid Unicode length");
6103 /* Invalid characters could return the special 0xfffd value but NUL
6104 * should be just as good. */
6105 return unicode > 0xffff ? 0 : unicode;
6108 /* Calculates how much of string can be shown within the given maximum width
6109 * and sets trimmed parameter to non-zero value if all of string could not be
6110 * shown. If the reserve flag is TRUE, it will reserve at least one
6111 * trailing character, which can be useful when drawing a delimiter.
6113 * Returns the number of bytes to output from string to satisfy max_width. */
6115 utf8_length(const char **start, size_t skip, int *width, size_t max_width, int *trimmed, bool reserve)
6117 const char *string = *start;
6118 const char *end = strchr(string, '\0');
6119 unsigned char last_bytes = 0;
6120 size_t last_ucwidth = 0;
6125 while (string < end) {
6126 int c = *(unsigned char *) string;
6127 unsigned char bytes = utf8_bytes[c];
6129 unsigned long unicode;
6131 if (string + bytes > end)
6134 /* Change representation to figure out whether
6135 * it is a single- or double-width character. */
6137 unicode = utf8_to_unicode(string, bytes);
6138 /* FIXME: Graceful handling of invalid Unicode character. */
6142 ucwidth = unicode_width(unicode);
6144 skip -= ucwidth <= skip ? ucwidth : skip;
6148 if (*width > max_width) {
6151 if (reserve && *width == max_width) {
6152 string -= last_bytes;
6153 *width -= last_ucwidth;
6159 last_bytes = ucwidth ? bytes : 0;
6160 last_ucwidth = ucwidth;
6163 return string - *start;
6171 /* Whether or not the curses interface has been initialized. */
6172 static bool cursed = FALSE;
6174 /* Terminal hacks and workarounds. */
6175 static bool use_scroll_redrawwin;
6176 static bool use_scroll_status_wclear;
6178 /* The status window is used for polling keystrokes. */
6179 static WINDOW *status_win;
6181 /* Reading from the prompt? */
6182 static bool input_mode = FALSE;
6184 static bool status_empty = FALSE;
6186 /* Update status and title window. */
6188 report(const char *msg, ...)
6190 struct view *view = display[current_view];
6196 char buf[SIZEOF_STR];
6199 va_start(args, msg);
6200 if (vsnprintf(buf, sizeof(buf), msg, args) >= sizeof(buf)) {
6201 buf[sizeof(buf) - 1] = 0;
6202 buf[sizeof(buf) - 2] = '.';
6203 buf[sizeof(buf) - 3] = '.';
6204 buf[sizeof(buf) - 4] = '.';
6210 if (!status_empty || *msg) {
6213 va_start(args, msg);
6215 wmove(status_win, 0, 0);
6216 if (view->has_scrolled && use_scroll_status_wclear)
6219 vwprintw(status_win, msg, args);
6220 status_empty = FALSE;
6222 status_empty = TRUE;
6224 wclrtoeol(status_win);
6225 wnoutrefresh(status_win);
6230 update_view_title(view);
6233 /* Controls when nodelay should be in effect when polling user input. */
6235 set_nonblocking_input(bool loading)
6237 static unsigned int loading_views;
6239 if ((loading == FALSE && loading_views-- == 1) ||
6240 (loading == TRUE && loading_views++ == 0))
6241 nodelay(status_win, loading);
6250 /* Initialize the curses library */
6251 if (isatty(STDIN_FILENO)) {
6252 cursed = !!initscr();
6255 /* Leave stdin and stdout alone when acting as a pager. */
6256 opt_tty = fopen("/dev/tty", "r+");
6258 die("Failed to open /dev/tty");
6259 cursed = !!newterm(NULL, opt_tty, opt_tty);
6263 die("Failed to initialize curses");
6265 nonl(); /* Disable conversion and detect newlines from input. */
6266 cbreak(); /* Take input chars one at a time, no wait for \n */
6267 noecho(); /* Don't echo input */
6268 leaveok(stdscr, FALSE);
6273 getmaxyx(stdscr, y, x);
6274 status_win = newwin(1, 0, y - 1, 0);
6276 die("Failed to create status window");
6278 /* Enable keyboard mapping */
6279 keypad(status_win, TRUE);
6280 wbkgdset(status_win, get_line_attr(LINE_STATUS));
6282 TABSIZE = opt_tab_size;
6283 if (opt_line_graphics) {
6284 line_graphics[LINE_GRAPHIC_VLINE] = ACS_VLINE;
6287 term = getenv("XTERM_VERSION") ? NULL : getenv("COLORTERM");
6288 if (term && !strcmp(term, "gnome-terminal")) {
6289 /* In the gnome-terminal-emulator, the message from
6290 * scrolling up one line when impossible followed by
6291 * scrolling down one line causes corruption of the
6292 * status line. This is fixed by calling wclear. */
6293 use_scroll_status_wclear = TRUE;
6294 use_scroll_redrawwin = FALSE;
6296 } else if (term && !strcmp(term, "xrvt-xpm")) {
6297 /* No problems with full optimizations in xrvt-(unicode)
6299 use_scroll_status_wclear = use_scroll_redrawwin = FALSE;
6302 /* When scrolling in (u)xterm the last line in the
6303 * scrolling direction will update slowly. */
6304 use_scroll_redrawwin = TRUE;
6305 use_scroll_status_wclear = FALSE;
6310 get_input(int prompt_position)
6313 int i, key, cursor_y, cursor_x;
6315 if (prompt_position)
6319 foreach_view (view, i) {
6321 if (view_is_displayed(view) && view->has_scrolled &&
6322 use_scroll_redrawwin)
6323 redrawwin(view->win);
6324 view->has_scrolled = FALSE;
6327 /* Update the cursor position. */
6328 if (prompt_position) {
6329 getbegyx(status_win, cursor_y, cursor_x);
6330 cursor_x = prompt_position;
6332 view = display[current_view];
6333 getbegyx(view->win, cursor_y, cursor_x);
6334 cursor_x = view->width - 1;
6335 cursor_y += view->lineno - view->offset;
6337 setsyx(cursor_y, cursor_x);
6339 /* Refresh, accept single keystroke of input */
6341 key = wgetch(status_win);
6343 /* wgetch() with nodelay() enabled returns ERR when
6344 * there's no input. */
6347 } else if (key == KEY_RESIZE) {
6350 getmaxyx(stdscr, height, width);
6352 wresize(status_win, 1, width);
6353 mvwin(status_win, height - 1, 0);
6354 wnoutrefresh(status_win);
6356 redraw_display(TRUE);
6366 prompt_input(const char *prompt, input_handler handler, void *data)
6368 enum input_status status = INPUT_OK;
6369 static char buf[SIZEOF_STR];
6374 while (status == INPUT_OK || status == INPUT_SKIP) {
6377 mvwprintw(status_win, 0, 0, "%s%.*s", prompt, pos, buf);
6378 wclrtoeol(status_win);
6380 key = get_input(pos + 1);
6385 status = pos ? INPUT_STOP : INPUT_CANCEL;
6392 status = INPUT_CANCEL;
6396 status = INPUT_CANCEL;
6400 if (pos >= sizeof(buf)) {
6401 report("Input string too long");
6405 status = handler(data, buf, key);
6406 if (status == INPUT_OK)
6407 buf[pos++] = (char) key;
6411 /* Clear the status window */
6412 status_empty = FALSE;
6415 if (status == INPUT_CANCEL)
6423 static enum input_status
6424 prompt_yesno_handler(void *data, char *buf, int c)
6426 if (c == 'y' || c == 'Y')
6428 if (c == 'n' || c == 'N')
6429 return INPUT_CANCEL;
6434 prompt_yesno(const char *prompt)
6436 char prompt2[SIZEOF_STR];
6438 if (!string_format(prompt2, "%s [Yy/Nn]", prompt))
6441 return !!prompt_input(prompt2, prompt_yesno_handler, NULL);
6444 static enum input_status
6445 read_prompt_handler(void *data, char *buf, int c)
6447 return isprint(c) ? INPUT_OK : INPUT_SKIP;
6451 read_prompt(const char *prompt)
6453 return prompt_input(prompt, read_prompt_handler, NULL);
6457 * Repository properties
6460 static struct ref *refs = NULL;
6461 static size_t refs_alloc = 0;
6462 static size_t refs_size = 0;
6464 /* Id <-> ref store */
6465 static struct ref ***id_refs = NULL;
6466 static size_t id_refs_alloc = 0;
6467 static size_t id_refs_size = 0;
6470 compare_refs(const void *ref1_, const void *ref2_)
6472 const struct ref *ref1 = *(const struct ref **)ref1_;
6473 const struct ref *ref2 = *(const struct ref **)ref2_;
6475 if (ref1->tag != ref2->tag)
6476 return ref2->tag - ref1->tag;
6477 if (ref1->ltag != ref2->ltag)
6478 return ref2->ltag - ref2->ltag;
6479 if (ref1->head != ref2->head)
6480 return ref2->head - ref1->head;
6481 if (ref1->tracked != ref2->tracked)
6482 return ref2->tracked - ref1->tracked;
6483 if (ref1->remote != ref2->remote)
6484 return ref2->remote - ref1->remote;
6485 return strcmp(ref1->name, ref2->name);
6488 static struct ref **
6489 get_refs(const char *id)
6491 struct ref ***tmp_id_refs;
6492 struct ref **ref_list = NULL;
6493 size_t ref_list_alloc = 0;
6494 size_t ref_list_size = 0;
6497 for (i = 0; i < id_refs_size; i++)
6498 if (!strcmp(id, id_refs[i][0]->id))
6501 tmp_id_refs = realloc_items(id_refs, &id_refs_alloc, id_refs_size + 1,
6506 id_refs = tmp_id_refs;
6508 for (i = 0; i < refs_size; i++) {
6511 if (strcmp(id, refs[i].id))
6514 tmp = realloc_items(ref_list, &ref_list_alloc,
6515 ref_list_size + 1, sizeof(*ref_list));
6523 ref_list[ref_list_size] = &refs[i];
6524 /* XXX: The properties of the commit chains ensures that we can
6525 * safely modify the shared ref. The repo references will
6526 * always be similar for the same id. */
6527 ref_list[ref_list_size]->next = 1;
6533 qsort(ref_list, ref_list_size, sizeof(*ref_list), compare_refs);
6534 ref_list[ref_list_size - 1]->next = 0;
6535 id_refs[id_refs_size++] = ref_list;
6542 read_ref(char *id, size_t idlen, char *name, size_t namelen)
6547 bool remote = FALSE;
6548 bool tracked = FALSE;
6549 bool check_replace = FALSE;
6552 if (!prefixcmp(name, "refs/tags/")) {
6553 if (!suffixcmp(name, namelen, "^{}")) {
6556 if (refs_size > 0 && refs[refs_size - 1].ltag == TRUE)
6557 check_replace = TRUE;
6563 namelen -= STRING_SIZE("refs/tags/");
6564 name += STRING_SIZE("refs/tags/");
6566 } else if (!prefixcmp(name, "refs/remotes/")) {
6568 namelen -= STRING_SIZE("refs/remotes/");
6569 name += STRING_SIZE("refs/remotes/");
6570 tracked = !strcmp(opt_remote, name);
6572 } else if (!prefixcmp(name, "refs/heads/")) {
6573 namelen -= STRING_SIZE("refs/heads/");
6574 name += STRING_SIZE("refs/heads/");
6575 head = !strncmp(opt_head, name, namelen);
6577 } else if (!strcmp(name, "HEAD")) {
6578 string_ncopy(opt_head_rev, id, idlen);
6582 if (check_replace && !strcmp(name, refs[refs_size - 1].name)) {
6583 /* it's an annotated tag, replace the previous SHA1 with the
6584 * resolved commit id; relies on the fact git-ls-remote lists
6585 * the commit id of an annotated tag right before the commit id
6587 refs[refs_size - 1].ltag = ltag;
6588 string_copy_rev(refs[refs_size - 1].id, id);
6592 refs = realloc_items(refs, &refs_alloc, refs_size + 1, sizeof(*refs));
6596 ref = &refs[refs_size++];
6597 ref->name = malloc(namelen + 1);
6601 strncpy(ref->name, name, namelen);
6602 ref->name[namelen] = 0;
6606 ref->remote = remote;
6607 ref->tracked = tracked;
6608 string_copy_rev(ref->id, id);
6616 static const char *ls_remote_argv[SIZEOF_ARG] = {
6617 "git", "ls-remote", ".", NULL
6619 static bool init = FALSE;
6622 argv_from_env(ls_remote_argv, "TIG_LS_REMOTE");
6629 while (refs_size > 0)
6630 free(refs[--refs_size].name);
6631 while (id_refs_size > 0)
6632 free(id_refs[--id_refs_size]);
6634 return run_io_load(ls_remote_argv, "\t", read_ref);
6638 set_repo_config_option(char *name, char *value, int (*cmd)(int, const char **))
6640 const char *argv[SIZEOF_ARG] = { name, "=" };
6641 int argc = 1 + (cmd == option_set_command);
6644 if (!argv_from_string(argv, &argc, value))
6645 config_msg = "Too many option arguments";
6647 error = cmd(argc, argv);
6650 warn("Option 'tig.%s': %s", name, config_msg);
6654 read_repo_config_option(char *name, size_t namelen, char *value, size_t valuelen)
6656 if (!strcmp(name, "i18n.commitencoding"))
6657 string_ncopy(opt_encoding, value, valuelen);
6659 if (!strcmp(name, "core.editor"))
6660 string_ncopy(opt_editor, value, valuelen);
6662 if (!prefixcmp(name, "tig.color."))
6663 set_repo_config_option(name + 10, value, option_color_command);
6665 else if (!prefixcmp(name, "tig.bind."))
6666 set_repo_config_option(name + 9, value, option_bind_command);
6668 else if (!prefixcmp(name, "tig."))
6669 set_repo_config_option(name + 4, value, option_set_command);
6671 /* branch.<head>.remote */
6673 !strncmp(name, "branch.", 7) &&
6674 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6675 !strcmp(name + 7 + strlen(opt_head), ".remote"))
6676 string_ncopy(opt_remote, value, valuelen);
6678 if (*opt_head && *opt_remote &&
6679 !strncmp(name, "branch.", 7) &&
6680 !strncmp(name + 7, opt_head, strlen(opt_head)) &&
6681 !strcmp(name + 7 + strlen(opt_head), ".merge")) {
6682 size_t from = strlen(opt_remote);
6684 if (!prefixcmp(value, "refs/heads/")) {
6685 value += STRING_SIZE("refs/heads/");
6686 valuelen -= STRING_SIZE("refs/heads/");
6689 if (!string_format_from(opt_remote, &from, "/%s", value))
6697 load_git_config(void)
6699 const char *config_list_argv[] = { "git", GIT_CONFIG, "--list", NULL };
6701 return run_io_load(config_list_argv, "=", read_repo_config_option);
6705 read_repo_info(char *name, size_t namelen, char *value, size_t valuelen)
6707 if (!opt_git_dir[0]) {
6708 string_ncopy(opt_git_dir, name, namelen);
6710 } else if (opt_is_inside_work_tree == -1) {
6711 /* This can be 3 different values depending on the
6712 * version of git being used. If git-rev-parse does not
6713 * understand --is-inside-work-tree it will simply echo
6714 * the option else either "true" or "false" is printed.
6715 * Default to true for the unknown case. */
6716 opt_is_inside_work_tree = strcmp(name, "false") ? TRUE : FALSE;
6718 } else if (*name == '.') {
6719 string_ncopy(opt_cdup, name, namelen);
6722 string_ncopy(opt_prefix, name, namelen);
6729 load_repo_info(void)
6731 const char *head_argv[] = {
6732 "git", "symbolic-ref", "HEAD", NULL
6734 const char *rev_parse_argv[] = {
6735 "git", "rev-parse", "--git-dir", "--is-inside-work-tree",
6736 "--show-cdup", "--show-prefix", NULL
6739 if (run_io_buf(head_argv, opt_head, sizeof(opt_head))) {
6740 chomp_string(opt_head);
6741 if (!prefixcmp(opt_head, "refs/heads/")) {
6742 char *offset = opt_head + STRING_SIZE("refs/heads/");
6744 memmove(opt_head, offset, strlen(offset) + 1);
6748 return run_io_load(rev_parse_argv, "=", read_repo_info);
6756 static const char usage[] =
6757 "tig " TIG_VERSION " (" __DATE__ ")\n"
6759 "Usage: tig [options] [revs] [--] [paths]\n"
6760 " or: tig show [options] [revs] [--] [paths]\n"
6761 " or: tig blame [rev] path\n"
6763 " or: tig < [git command output]\n"
6766 " -v, --version Show version and exit\n"
6767 " -h, --help Show help message and exit";
6769 static void __NORETURN
6772 /* XXX: Restore tty modes and let the OS cleanup the rest! */
6778 static void __NORETURN
6779 die(const char *err, ...)
6785 va_start(args, err);
6786 fputs("tig: ", stderr);
6787 vfprintf(stderr, err, args);
6788 fputs("\n", stderr);
6795 warn(const char *msg, ...)
6799 va_start(args, msg);
6800 fputs("tig warning: ", stderr);
6801 vfprintf(stderr, msg, args);
6802 fputs("\n", stderr);
6807 parse_options(int argc, const char *argv[])
6809 enum request request = REQ_VIEW_MAIN;
6810 const char *subcommand;
6811 bool seen_dashdash = FALSE;
6812 /* XXX: This is vulnerable to the user overriding options
6813 * required for the main view parser. */
6814 const char *custom_argv[SIZEOF_ARG] = {
6815 "git", "log", "--no-color", "--pretty=raw", "--parents",
6816 "--topo-order", NULL
6820 if (!isatty(STDIN_FILENO)) {
6821 io_open(&VIEW(REQ_VIEW_PAGER)->io, "");
6822 return REQ_VIEW_PAGER;
6828 subcommand = argv[1];
6829 if (!strcmp(subcommand, "status")) {
6831 warn("ignoring arguments after `%s'", subcommand);
6832 return REQ_VIEW_STATUS;
6834 } else if (!strcmp(subcommand, "blame")) {
6835 if (argc <= 2 || argc > 4)
6836 die("invalid number of options to blame\n\n%s", usage);
6840 string_ncopy(opt_ref, argv[i], strlen(argv[i]));
6844 string_ncopy(opt_file, argv[i], strlen(argv[i]));
6845 return REQ_VIEW_BLAME;
6847 } else if (!strcmp(subcommand, "show")) {
6848 request = REQ_VIEW_DIFF;
6855 custom_argv[1] = subcommand;
6859 for (i = 1 + !!subcommand; i < argc; i++) {
6860 const char *opt = argv[i];
6862 if (seen_dashdash || !strcmp(opt, "--")) {
6863 seen_dashdash = TRUE;
6865 } else if (!strcmp(opt, "-v") || !strcmp(opt, "--version")) {
6866 printf("tig version %s\n", TIG_VERSION);
6869 } else if (!strcmp(opt, "-h") || !strcmp(opt, "--help")) {
6870 printf("%s\n", usage);
6874 custom_argv[j++] = opt;
6875 if (j >= ARRAY_SIZE(custom_argv))
6876 die("command too long");
6879 if (!prepare_update(VIEW(request), custom_argv, NULL, FORMAT_NONE))
6880 die("Failed to format arguments");
6886 main(int argc, const char *argv[])
6888 enum request request = parse_options(argc, argv);
6892 signal(SIGINT, quit);
6894 if (setlocale(LC_ALL, "")) {
6895 char *codeset = nl_langinfo(CODESET);
6897 string_ncopy(opt_codeset, codeset, strlen(codeset));
6900 if (load_repo_info() == ERR)
6901 die("Failed to load repo info.");
6903 if (load_options() == ERR)
6904 die("Failed to load user config.");
6906 if (load_git_config() == ERR)
6907 die("Failed to load repo config.");
6909 /* Require a git repository unless when running in pager mode. */
6910 if (!opt_git_dir[0] && request != REQ_VIEW_PAGER)
6911 die("Not a git repository");
6913 if (*opt_encoding && strcasecmp(opt_encoding, "UTF-8"))
6916 if (*opt_codeset && strcmp(opt_codeset, opt_encoding)) {
6917 opt_iconv = iconv_open(opt_codeset, opt_encoding);
6918 if (opt_iconv == ICONV_NONE)
6919 die("Failed to initialize character set conversion");
6922 if (load_refs() == ERR)
6923 die("Failed to load refs.");
6925 foreach_view (view, i)
6926 argv_from_env(view->ops->argv, view->cmd_env);
6930 if (request != REQ_NONE)
6931 open_view(NULL, request, OPEN_PREPARED);
6932 request = request == REQ_NONE ? REQ_VIEW_MAIN : REQ_NONE;
6934 while (view_driver(display[current_view], request)) {
6935 int key = get_input(0);
6937 view = display[current_view];
6938 request = get_keybinding(view->keymap, key);
6940 /* Some low-level request handling. This keeps access to
6941 * status_win restricted. */
6945 char *cmd = read_prompt(":");
6947 if (cmd && isdigit(*cmd)) {
6948 int lineno = view->lineno + 1;
6950 if (parse_int(&lineno, cmd, 1, view->lines + 1) == OK) {
6951 select_view_line(view, lineno - 1);
6954 report("Unable to parse '%s' as a line number", cmd);
6958 struct view *next = VIEW(REQ_VIEW_PAGER);
6959 const char *argv[SIZEOF_ARG] = { "git" };
6962 /* When running random commands, initially show the
6963 * command in the title. However, it maybe later be
6964 * overwritten if a commit line is selected. */
6965 string_ncopy(next->ref, cmd, strlen(cmd));
6967 if (!argv_from_string(argv, &argc, cmd)) {
6968 report("Too many arguments");
6969 } else if (!prepare_update(next, argv, NULL, FORMAT_DASH)) {
6970 report("Failed to format command");
6972 open_view(view, REQ_VIEW_PAGER, OPEN_PREPARED);
6980 case REQ_SEARCH_BACK:
6982 const char *prompt = request == REQ_SEARCH ? "/" : "?";
6983 char *search = read_prompt(prompt);
6986 string_ncopy(opt_search, search, strlen(search));
6987 else if (*opt_search)
6988 request = request == REQ_SEARCH ?